code -> fw

80 files changed, 8096 insertions, 0 deletions

diff --git a/fw/fe310/eos/LICENSE b/fw/fe310/eos/LICENSE
new file mode 100644
index 0000000..d159169
--- /dev/null
+++ b/fw/fe310/eos/LICENSE
@@ -0,0 +1,339 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
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+These restrictions translate to certain responsibilities for you if you
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+
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+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
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+a notice placed by the copyright holder saying it may be distributed
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+Activities other than copying, distribution and modification are not
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+You may charge a fee for the physical act of transferring a copy, and
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+This section is intended to make thoroughly clear what is believed to
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+  10. If you wish to incorporate parts of the Program into other free
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+                            NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
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+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
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+free software which everyone can redistribute and change under these terms.
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+  To do so, attach the following notices to the program.  It is safest
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+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
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+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
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+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
diff --git a/fw/fe310/eos/Makefile b/fw/fe310/eos/Makefile
new file mode 100644
index 0000000..301a30e
--- /dev/null
+++ b/fw/fe310/eos/Makefile
@@ -0,0 +1,17 @@
+include ../common.mk
+
+CFLAGS += -I../bsp/include -I../bsp/drivers
+
+obj = trap_entry.o eos.o msgq.o event.o interrupt.o timer.o power.o i2s.o uart.o spi.o spi_dev.o net.o wifi.o cell.o sock.o unicode.o
+
+
+%.o: %.c %.h
+	$(CC) $(CFLAGS) -c $<
+
+%.o: %.S
+	$(CC) $(CFLAGS) -c $<
+
+all: $(obj)
+
+clean:
+	rm -f *.o
\ No newline at end of file
diff --git a/fw/fe310/eos/cell.c b/fw/fe310/eos/cell.c
new file mode 100644
index 0000000..2421f4b
--- /dev/null
+++ b/fw/fe310/eos/cell.c
@@ -0,0 +1,48 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "eos.h"
+#include "event.h"
+#include "net.h"
+
+#include "cell.h"
+
+static eos_evt_handler_t evt_handler[EOS_CELL_MAX_MTYPE];
+
+static void cell_handle_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
+    if ((buffer == NULL) || (len < 1)) {
+        eos_net_bad_handler(type, buffer, len);
+        return;
+    }
+    unsigned char mtype = buffer[0];
+    unsigned char idx = (mtype & EOS_CELL_MTYPE_MASK) >> 4;
+
+    if (idx < EOS_CELL_MAX_MTYPE) {
+        evt_handler[idx](type, buffer, len);
+    } else {
+        eos_net_bad_handler(type, buffer, len);
+    }
+}
+
+static void cell_handle_rdy(unsigned char type, unsigned char *buffer, uint16_t len) {
+    // Do nothing
+    eos_net_free(buffer, 0);
+}
+
+void eos_cell_init(void) {
+    int i;
+
+    for (i=0; i<EOS_CELL_MAX_MTYPE; i++) {
+        evt_handler[i] = eos_net_bad_handler;
+    }
+    eos_net_set_handler(EOS_NET_MTYPE_CELL, cell_handle_evt);
+    eos_cell_set_handler(EOS_CELL_MTYPE_READY, cell_handle_rdy);
+}
+
+void eos_cell_set_handler(unsigned char mtype, eos_evt_handler_t handler) {
+    unsigned char idx = (mtype & EOS_CELL_MTYPE_MASK) >> 4;
+
+    if (handler == NULL) handler = eos_net_bad_handler;
+    if (idx < EOS_CELL_MAX_MTYPE) evt_handler[idx] = handler;
+}
diff --git a/fw/fe310/eos/cell.h b/fw/fe310/eos/cell.h
new file mode 100644
index 0000000..d93967a
--- /dev/null
+++ b/fw/fe310/eos/cell.h
@@ -0,0 +1,38 @@
+#include <stdint.h>
+#include "event.h"
+
+#define EOS_CELL_MTYPE_DEV          0x00
+#define EOS_CELL_MTYPE_VOICE        0x10
+#define EOS_CELL_MTYPE_SMS          0x20
+#define EOS_CELL_MTYPE_CBS          0x30
+#define EOS_CELL_MTYPE_USSD         0x40
+#define EOS_CELL_MTYPE_DATA         0x70
+
+#define EOS_CELL_MTYPE_MASK         0xf0
+#define EOS_CELL_MAX_MTYPE          8
+
+#define EOS_CELL_MTYPE_READY        0
+#define EOS_CELL_MTYPE_UART_DATA    1
+#define EOS_CELL_MTYPE_UART_TAKE    2
+#define EOS_CELL_MTYPE_UART_GIVE    3
+#define EOS_CELL_MTYPE_PCM_DATA     4
+#define EOS_CELL_MTYPE_PCM_START    5
+#define EOS_CELL_MTYPE_PCM_STOP     6
+
+#define EOS_CELL_MTYPE_VOICE_DIAL   1
+#define EOS_CELL_MTYPE_VOICE_RING   2
+#define EOS_CELL_MTYPE_VOICE_ANSWER 3
+#define EOS_CELL_MTYPE_VOICE_HANGUP 4
+#define EOS_CELL_MTYPE_VOICE_BEGIN  5
+#define EOS_CELL_MTYPE_VOICE_END    6
+
+#define EOS_CELL_MTYPE_USSD_REQUEST 1
+#define EOS_CELL_MTYPE_USSD_REPLY   2
+
+#define EOS_CELL_UART_MODE_NONE     0
+#define EOS_CELL_UART_MODE_ATCMD    1
+#define EOS_CELL_UART_MODE_PPP      2
+#define EOS_CELL_UART_MODE_RELAY    3
+
+void eos_cell_init(void);
+void eos_cell_set_handler(unsigned char mtype, eos_evt_handler_t handler);
\ No newline at end of file
diff --git a/fw/fe310/eos/eos.c b/fw/fe310/eos/eos.c
new file mode 100644
index 0000000..b02abed
--- /dev/null
+++ b/fw/fe310/eos/eos.c
@@ -0,0 +1,43 @@
+#include <stdio.h>
+
+#include "event.h"
+#include "interrupt.h"
+#include "timer.h"
+#include "power.h"
+#include "i2s.h"
+#include "uart.h"
+#include "spi.h"
+#include "net.h"
+#include "wifi.h"
+#include "cell.h"
+#include "sock.h"
+#include "eve/eve.h"
+
+#include "eos.h"
+
+static uint32_t eve_touch[6] = {0xfa46,0xfffffcf6,0x422fe,0xffffff38,0x10002,0xf3cb0};
+
+void eos_init(void) {
+    uint8_t wakeup_cause = eos_power_wakeup_cause();
+    printf("WAKE:%d\n", wakeup_cause);
+
+    eos_evtq_init();
+    eos_intr_init();
+    eos_timer_init();
+    eos_i2s_init();
+    eos_uart_init();
+    eos_spi_init();
+    eos_net_init();
+    eos_power_init();
+    eos_wifi_init();
+    eos_cell_init();
+    eos_sock_init();
+    eos_spi_dev_init();
+
+    eos_net_wake(wakeup_cause);
+
+    eve_set_touch_calibration(eve_touch);
+    eos_spi_dev_start(EOS_DEV_DISP);
+    eve_init(wakeup_cause == EOS_PWR_WAKE_RST);
+    eos_spi_dev_stop();
+}
diff --git a/fw/fe310/eos/eos.h b/fw/fe310/eos/eos.h
new file mode 100644
index 0000000..2a295f1
--- /dev/null
+++ b/fw/fe310/eos/eos.h
@@ -0,0 +1,12 @@
+#define EOS_OK                  0
+#define EOS_ERR                 -1
+#define EOS_ERR_TIMEOUT         -2
+#define EOS_ERR_BUSY            -3
+
+#define EOS_ERR_FULL            -10
+#define EOS_ERR_EMPTY           -11
+#define EOS_ERR_NOTFOUND        -12
+
+#define EOS_ERR_NET             -20
+
+void eos_init(void);
diff --git a/fw/fe310/eos/eve/Makefile b/fw/fe310/eos/eve/Makefile
new file mode 100644
index 0000000..d700b30
--- /dev/null
+++ b/fw/fe310/eos/eve/Makefile
@@ -0,0 +1,17 @@
+include ../../common.mk
+
+CFLAGS += -I.. -I../../bsp/include
+
+obj = eve.o eve_touch.o eve_track.o eve_kbd.o eve_text.o eve_platform.o
+
+
+%.o: %.c %.h
+	$(CC) $(CFLAGS) -c $<
+
+%.o: %.S
+	$(CC) $(CFLAGS) -c $<
+
+all: $(obj)
+
+clean:
+	rm -f *.o
\ No newline at end of file
diff --git a/fw/fe310/eos/eve/eve.c b/fw/fe310/eos/eve/eve.c
new file mode 100644
index 0000000..1db5744
--- /dev/null
+++ b/fw/fe310/eos/eve/eve.c
@@ -0,0 +1,411 @@
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "eve.h"
+
+#define EVE_MEM_WRITE           0x800000
+
+static char _cmd_burst;
+static uint16_t _cmd_offset;
+static uint32_t _dl_addr;
+static uint32_t *_touch_calib;
+static uint8_t _brigtness;
+static uint8_t _power_state;
+
+void eve_command(uint8_t command, uint8_t parameter) {
+    eve_spi_cs_set();
+    eve_spi_xchg24(((uint32_t)command << 16) | ((uint32_t)parameter << 8), 0);
+    eve_spi_cs_clear();
+}
+
+uint8_t eve_read8(uint32_t addr) {
+    uint8_t r;
+    eve_spi_cs_set();
+    eve_spi_xchg32(addr << 8, 0);
+    r = eve_spi_xchg8(0, EVE_SPI_FLAG_BSWAP);
+    eve_spi_cs_clear();
+
+    return r;
+}
+
+uint16_t eve_read16(uint32_t addr) {
+    uint16_t r;
+    eve_spi_cs_set();
+    eve_spi_xchg32(addr << 8, 0);
+    r = eve_spi_xchg16(0, EVE_SPI_FLAG_BSWAP);
+    eve_spi_cs_clear();
+
+    return r;
+}
+
+uint32_t eve_read32(uint32_t addr) {
+    uint32_t r;
+    eve_spi_cs_set();
+    eve_spi_xchg32(addr << 8, 0);
+    r = eve_spi_xchg32(0, EVE_SPI_FLAG_BSWAP);
+    eve_spi_cs_clear();
+
+    return r;
+}
+
+void eve_write8(uint32_t addr, uint8_t data) {
+    eve_spi_cs_set();
+    eve_spi_xchg24(addr | EVE_MEM_WRITE, 0);
+    eve_spi_xchg8(data, EVE_SPI_FLAG_BSWAP);
+    eve_spi_cs_clear();
+}
+
+void eve_write16(uint32_t addr, uint16_t data) {
+    eve_spi_cs_set();
+    eve_spi_xchg24(addr | EVE_MEM_WRITE, 0);
+    eve_spi_xchg16(data, EVE_SPI_FLAG_BSWAP);
+    eve_spi_cs_clear();
+}
+
+void eve_write32(uint32_t addr, uint32_t data) {
+    eve_spi_cs_set();
+    eve_spi_xchg24(addr | EVE_MEM_WRITE, 0);
+    eve_spi_xchg32(data, EVE_SPI_FLAG_BSWAP);
+    eve_spi_cs_clear();
+}
+
+void eve_readb(uint32_t addr, uint8_t *b, size_t size) {
+    int i;
+
+    eve_spi_cs_set();
+    eve_spi_xchg32(addr << 8, 0);
+    for (i=0; i<size; i++) {
+        b[i] = eve_spi_xchg8(0, 0);
+    }
+    eve_spi_cs_clear();
+}
+
+void eve_writeb(uint32_t addr, uint8_t *b, size_t size) {
+    int i;
+
+    eve_spi_cs_set();
+    eve_spi_xchg24(addr | EVE_MEM_WRITE, 0);
+    for (i=0; i<size; i++) {
+        eve_spi_xchg8(b[i], 0);
+    }
+    eve_spi_cs_clear();
+}
+
+static void _dl_inc(uint32_t i) {
+    _dl_addr += i;
+}
+
+void eve_dl_start(uint32_t addr) {
+    _dl_addr = addr;
+}
+
+void eve_dl_write(uint32_t dl) {
+    eve_write32(_dl_addr, dl);
+    _dl_inc(4);
+}
+
+void eve_dl_swap(void) {
+    eve_write8(REG_DLSWAP, EVE_DLSWAP_FRAME);
+}
+
+uint32_t eve_dl_get_addr(void) {
+    return _dl_addr;
+}
+
+static void _cmd_inc(uint16_t i) {
+    _cmd_offset += i;
+    _cmd_offset &= 0x0fff;
+}
+
+static void _cmd_begin(uint32_t command) {
+    uint8_t flags = 0;
+
+    if (_cmd_burst) {
+        flags = EVE_SPI_FLAG_TX;
+    } else {
+        uint32_t addr = EVE_RAM_CMD + _cmd_offset;
+        eve_spi_cs_set();
+        eve_spi_xchg24(addr | EVE_MEM_WRITE, 0);
+    }
+    eve_spi_xchg32(command, EVE_SPI_FLAG_BSWAP | flags);
+    _cmd_inc(4);
+}
+
+static void _cmd_end(void) {
+    if (!_cmd_burst) eve_spi_cs_clear();
+}
+
+static void _cmd_string(const char *s, uint8_t flags) {
+    int i = 0;
+
+    while (s[i] != 0) {
+        eve_spi_xchg8(s[i], flags);
+        i++;
+    }
+    eve_spi_xchg8(0, flags);
+    i++;
+    _cmd_inc(i);
+}
+
+static void _cmd_buffer(const char *b, int size, uint8_t flags) {
+    int i = 0;
+
+    for (i=0; i<size; i++) {
+        eve_spi_xchg8(b[i], flags);
+    }
+    _cmd_inc(size);
+}
+
+void eve_cmd(uint32_t cmd, const char *fmt, ...) {
+    uint8_t flags = _cmd_burst ? (EVE_SPI_FLAG_TX | EVE_SPI_FLAG_BSWAP) : EVE_SPI_FLAG_BSWAP;
+    va_list argv;
+    uint16_t *p;
+    int i = 0;
+
+    va_start(argv, fmt);
+    _cmd_begin(cmd);
+    while (fmt[i]) {
+        switch (fmt[i]) {
+            case 'b':
+                eve_spi_xchg8(va_arg(argv, int), flags);
+                _cmd_inc(1);
+                break;
+            case 'h':
+                eve_spi_xchg16(va_arg(argv, int), flags);
+                _cmd_inc(2);
+                break;
+            case 'w':
+                eve_spi_xchg32(va_arg(argv, int), flags);
+                _cmd_inc(4);
+                break;
+            case '&':
+                p = va_arg(argv, uint16_t *);
+                *p = _cmd_offset;
+                eve_spi_xchg32(0, flags);
+                _cmd_inc(4);
+                break;
+            case 's':
+                _cmd_string(va_arg(argv, const char *), flags);
+                break;
+            case 'p':
+                _cmd_buffer(va_arg(argv, const char *), va_arg(argv, int), flags);
+                break;
+        }
+        i++;
+    }
+    va_end(argv);
+    /* padding */
+    i = _cmd_offset & 3;  /* equivalent to _cmd_offset % 4 */
+    if (i) {
+        i = 4 - i;  /* 3, 2 or 1 */
+        _cmd_inc(i);
+
+        while (i > 0) {
+            eve_spi_xchg8(0, flags);
+            i--;
+        }
+    }
+    _cmd_end();
+}
+
+uint32_t eve_cmd_result(uint16_t offset) {
+    return eve_read32(EVE_RAM_CMD + offset);
+}
+
+void eve_cmd_dl(uint32_t dl) {
+    _cmd_begin(dl);
+    _cmd_end();
+}
+
+int eve_cmd_done(void) {
+    uint16_t r = eve_read16(REG_CMD_READ);
+    if (r == 0xfff) {
+        _cmd_offset = 0;
+        eve_write8(REG_CPURESET, 1);
+        eve_write16(REG_CMD_READ, 0);
+        eve_write16(REG_CMD_WRITE, 0);
+        eve_write16(REG_CMD_DL, 0);
+        eve_write8(REG_CPURESET, 0);
+        return -1;
+    }
+    return (r == _cmd_offset);
+}
+
+int eve_cmd_exec(int w) {
+    eve_write16(REG_CMD_WRITE, _cmd_offset);
+    if (w) {
+        int r;
+        do {
+            r = eve_cmd_done();
+        } while (!r);
+        if (r < 0) return EVE_ERR;
+    }
+    return EVE_OK;
+}
+
+void eve_cmd_burst_start(void) {
+    uint32_t addr = EVE_RAM_CMD + _cmd_offset;
+    eve_spi_cs_set();
+    eve_spi_xchg24(addr | EVE_MEM_WRITE, EVE_SPI_FLAG_TX);
+    _cmd_burst = 1;
+}
+
+void eve_cmd_burst_end(void) {
+    eve_spi_flush();
+    eve_spi_cs_clear();
+    _cmd_burst = 0;
+}
+
+void eve_active(void) {
+    eve_command(EVE_ACTIVE, 0);
+    if (_power_state == EVE_PSTATE_SLEEP) eve_time_sleep(40);
+
+    eve_write8(REG_PWM_DUTY, _brigtness);
+    if (_power_state != EVE_PSTATE_SLEEP) return;
+
+    eve_write8(REG_TOUCH_MODE, EVE_TMODE_CONTINUOUS);
+    eve_write8(REG_CTOUCH_EXTENDED, 0x00);
+
+    _power_state = EVE_PSTATE_ACTIVE;
+}
+
+void eve_standby(void) {
+    if (_power_state != EVE_PSTATE_ACTIVE) return;
+
+    _brigtness = eve_read8(REG_PWM_DUTY);
+    eve_command(EVE_STANDBY, 0);
+
+    _power_state = EVE_PSTATE_STANDBY;
+}
+
+void eve_sleep(void) {
+    if (_power_state != EVE_PSTATE_ACTIVE) return;
+
+    _brigtness = eve_read8(REG_PWM_DUTY);
+    eve_write8(REG_PWM_DUTY, 0x0);
+
+    eve_write8(REG_CTOUCH_EXTENDED, 0x01);
+    eve_write8(REG_TOUCH_MODE, EVE_TMODE_OFF);
+
+    eve_time_sleep(500);
+    eve_command(EVE_SLEEP, 0);
+
+    _power_state = EVE_PSTATE_SLEEP;
+}
+
+void eve_brightness(uint8_t b) {
+    eve_write8(REG_PWM_DUTY, b);
+}
+
+void eve_set_touch_calibration(uint32_t *matrix) {
+    _touch_calib = matrix;
+}
+
+static int _init(void) {
+    uint8_t chipid = 0;
+    uint16_t timeout = 0;
+
+    eve_command(EVE_RST_PULSE, 0);
+    eve_command(EVE_CLKEXT, 0);
+    eve_command(EVE_ACTIVE, 0);         /* start EVE */
+
+    while (chipid != 0x7C) {            /* if chipid is not 0x7c, continue to read it until it is, EVE needs a moment for it's power on self-test and configuration */
+        eve_time_sleep(1);
+        chipid = eve_read8(REG_ID);
+        timeout++;
+        if (timeout > 400) return EVE_ERR;
+    }
+
+    eve_write8(REG_PWM_DUTY, 0);
+    eve_write16(REG_GPIOX, 0);
+
+    /* Initialize Display */
+    eve_write16(REG_HCYCLE,  EVE_HCYCLE);   /* total number of clocks per line, incl front/back porch */
+    eve_write16(REG_HOFFSET, EVE_HOFFSET);  /* start of active line */
+    eve_write16(REG_HSYNC0,  EVE_HSYNC0);   /* start of horizontal sync pulse */
+    eve_write16(REG_HSYNC1,  EVE_HSYNC1);   /* end of horizontal sync pulse */
+    eve_write16(REG_VCYCLE,  EVE_VCYCLE);   /* total number of lines per screen, including pre/post */
+    eve_write16(REG_VOFFSET, EVE_VOFFSET);  /* start of active screen */
+    eve_write16(REG_VSYNC0,  EVE_VSYNC0);   /* start of vertical sync pulse */
+    eve_write16(REG_VSYNC1,  EVE_VSYNC1);   /* end of vertical sync pulse */
+    eve_write8(REG_SWIZZLE,  EVE_SWIZZLE);  /* FT8xx output to LCD - pin order */
+    eve_write8(REG_PCLK_POL, EVE_PCLKPOL);  /* LCD data is clocked in on this PCLK edge */
+    eve_write8(REG_CSPREAD,  EVE_CSPREAD);  /* helps with noise, when set to 1 fewer signals are changed simultaneously, reset-default: 1 */
+    eve_write16(REG_HSIZE,   EVE_HSIZE);    /* active display width */
+    eve_write16(REG_VSIZE,   EVE_VSIZE);    /* active display height */
+
+    /* do not set PCLK yet - wait for just after the first display list */
+
+    /* disable Audio */
+    eve_write16(REG_SOUND, 0x0000);         /* set synthesizer to silence */
+    eve_write8(REG_VOL_SOUND, 0x00);        /* turn synthesizer volume off */
+    eve_write8(REG_VOL_PB, 0x00);           /* turn recorded audio volume off */
+
+    /* write a basic display-list to get things started */
+    eve_dl_start(EVE_RAM_DL);
+    eve_dl_write(CLEAR_COLOR_RGB(0,0,0));
+    eve_dl_write(CLEAR(1,1,1));
+    eve_dl_write(DISPLAY());
+    eve_dl_swap();
+
+    /* nothing is being displayed yet... the pixel clock is still 0x00 */
+    eve_write16(REG_GPIOX, 0x8000);         /* enable the DISP signal to the LCD panel, it is set to output in REG_GPIOX_DIR by default */
+    eve_write8(REG_PCLK, EVE_PCLK);         /* now start clocking data to the LCD panel */
+
+    /* configure Touch */
+    eve_write16(REG_TOUCH_CONFIG, 0xb81);                   /* enable touch low power mode: 0xb81 - default: 0x381 */
+    eve_write8(REG_TOUCH_MODE, EVE_TMODE_CONTINUOUS);       /* enable touch */
+    eve_write16(REG_TOUCH_RZTHRESH, EVE_TOUCH_RZTHRESH);    /* eliminate any false touches */
+
+    if (_touch_calib) {
+        eve_write32(REG_TOUCH_TRANSFORM_A, _touch_calib[0]);
+        eve_write32(REG_TOUCH_TRANSFORM_B, _touch_calib[1]);
+        eve_write32(REG_TOUCH_TRANSFORM_C, _touch_calib[2]);
+        eve_write32(REG_TOUCH_TRANSFORM_D, _touch_calib[3]);
+        eve_write32(REG_TOUCH_TRANSFORM_E, _touch_calib[4]);
+        eve_write32(REG_TOUCH_TRANSFORM_F, _touch_calib[5]);
+    } else {
+        uint32_t touch_calib[6];
+        eve_cmd_dl(CMD_DLSTART);
+        eve_cmd_dl(CLEAR_COLOR_RGB(0,0,0));
+        eve_cmd_dl(CLEAR(1,1,1));
+        eve_cmd(CMD_TEXT, "hhhhs", EVE_HSIZE/2, EVE_VSIZE/2, 27, EVE_OPT_CENTER, "Please tap on the dot.");
+        eve_cmd(CMD_CALIBRATE, "w", 0);
+        eve_cmd_dl(DISPLAY());
+        eve_cmd_dl(CMD_SWAP);
+        eve_cmd_exec(1);
+
+        touch_calib[0] = eve_read32(REG_TOUCH_TRANSFORM_A);
+        touch_calib[1] = eve_read32(REG_TOUCH_TRANSFORM_B);
+        touch_calib[2] = eve_read32(REG_TOUCH_TRANSFORM_C);
+        touch_calib[3] = eve_read32(REG_TOUCH_TRANSFORM_D);
+        touch_calib[4] = eve_read32(REG_TOUCH_TRANSFORM_E);
+        touch_calib[5] = eve_read32(REG_TOUCH_TRANSFORM_F);
+
+        printf("TOUCH TRANSFORM:{0x%x,0x%x,0x%x,0x%x,0x%x,0x%x}\n", touch_calib[0], touch_calib[1], touch_calib[2], touch_calib[3], touch_calib[4], touch_calib[5]);
+    }
+
+    eve_write8(REG_CTOUCH_EXTENDED, 0x00);
+
+    eve_cmd(CMD_SETROTATE, "w", 2);
+    eve_cmd_exec(1);
+
+    return EVE_OK;
+}
+
+int eve_init(int pwr_on) {
+    if (pwr_on) {
+        int rv = _init();
+        if (rv) return rv;
+    } else {
+        _power_state = EVE_PSTATE_SLEEP;
+        eve_active();
+    }
+
+    eve_touch_init();
+    eve_track_init();
+    eve_platform_init();
+
+    return EVE_OK;
+}
diff --git a/fw/fe310/eos/eve/eve.h b/fw/fe310/eos/eve/eve.h
new file mode 100644
index 0000000..eb59959
--- /dev/null
+++ b/fw/fe310/eos/eve/eve.h
@@ -0,0 +1,59 @@
+#include <stdint.h>
+
+#include "eve_def.h"
+#include "eve_touch.h"
+#include "eve_track.h"
+#include "eve_platform.h"
+
+#define EVE_OK              0
+#define EVE_ERR             -1
+
+#define EVE_PSTATE_ACTIVE   0
+#define EVE_PSTATE_STANDBY  1
+#define EVE_PSTATE_SLEEP    3
+
+#define EVE_TAG_NOTAG       0
+
+#define COLOR_RGBC(c)       ((4UL<<24)|((c)&16777215UL))
+#define CLEAR_COLOR_RGBC(c) ((2UL<<24)|((c)&16777215UL))
+
+typedef struct EVERect {
+    int16_t x;
+    int16_t y;
+    uint16_t w;
+    uint16_t h;
+} EVERect;
+
+void eve_command(uint8_t command, uint8_t parameter);
+
+uint8_t eve_read8(uint32_t addr);
+uint16_t eve_read16(uint32_t addr);
+uint32_t eve_read32(uint32_t addr);
+void eve_write8(uint32_t addr, uint8_t data);
+void eve_write16(uint32_t addr, uint16_t data);
+void eve_write32(uint32_t addr, uint32_t data);
+
+void eve_readb(uint32_t addr, uint8_t *b, size_t size);
+void eve_writeb(uint32_t addr, uint8_t *b, size_t size);
+
+void eve_dl_start(uint32_t addr);
+void eve_dl_write(uint32_t dl);
+void eve_dl_swap(void);
+uint32_t eve_dl_get_addr(void);
+
+void eve_cmd(uint32_t cmd, const char *fmt, ...);
+uint32_t eve_cmd_result(uint16_t offset);
+void eve_cmd_dl(uint32_t dl);
+int eve_cmd_done(void);
+int eve_cmd_exec(int w);
+void eve_cmd_burst_start(void);
+void eve_cmd_burst_end(void);
+
+void eve_active(void);
+void eve_standby(void);
+void eve_sleep(void);
+void eve_wake(void);
+void eve_brightness(uint8_t b);
+void eve_set_touch_calibration(uint32_t *matrix);
+
+int eve_init(int pwr_on);
diff --git a/fw/fe310/eos/eve/eve_config.h b/fw/fe310/eos/eve/eve_config.h
new file mode 100755
index 0000000..882ea89
--- /dev/null
+++ b/fw/fe310/eos/eve/eve_config.h
@@ -0,0 +1,39 @@
+#ifndef EVE_CONFIG_H_
+#define EVE_CONFIG_H_
+
+/* my display */
+
+#define EVE_TH      1200L
+#define EVE_THD     800L
+#define EVE_THF     210L
+#define EVE_THP     20L
+#define EVE_THB     46L
+
+#define EVE_TV      650L
+#define EVE_TVD     480L
+#define EVE_TVF     22L
+#define EVE_TVP     12L
+#define EVE_TVB     23L
+
+
+#define EVE_HSIZE           (EVE_THD)                       /* Thd Length of visible part of line (in PCLKs) - display width */
+#define EVE_HSYNC0          (EVE_THF)                       /* Thf Horizontal Front Porch */
+#define EVE_HSYNC1          (EVE_THF + EVE_THP)             /* Thf + Thp Horizontal Front Porch plus Hsync Pulse width */
+#define EVE_HOFFSET         (EVE_THF + EVE_THP + EVE_THB)   /* Thf + Thp + Thb Length of non-visible part of line (in PCLK cycles) */
+#define EVE_HCYCLE          (EVE_TH)                        /* Th Total length of line (visible and non-visible) (in PCLKs) */
+
+#define EVE_VSIZE           (EVE_TVD)                       /* Tvd Number of visible lines (in lines) - display height */
+#define EVE_VSYNC0          (EVE_TVF)                       /* Tvf Vertical Front Porch */
+#define EVE_VSYNC1          (EVE_TVF + EVE_TVP)             /* Tvf + Tvp Vertical Front Porch plus Vsync Pulse width */
+#define EVE_VOFFSET         (EVE_TVF + EVE_TVP + EVE_TVB)   /* Tvf + Tvp + Tvb Number of non-visible lines (in lines) */
+#define EVE_VCYCLE          (EVE_TV)                        /* Tv Total number of lines (visible and non-visible) (in lines) */
+
+#define EVE_PCLKPOL         (1L)                            /* PCLK polarity (0 = rising edge, 1 = falling edge) */
+#define EVE_SWIZZLE         (0L)                            /* Defines the arrangement of the RGB pins of the FT800 */
+#define EVE_PCLK            (1L)                            /* 60MHz / REG_PCLK = PCLK frequency - 30 MHz */
+#define EVE_CSPREAD         (0L)                            /* helps with noise, when set to 1 fewer signals are changed simultaneously, reset-default: 1 */
+#define EVE_TOUCH_RZTHRESH  (1200L)                         /* touch-sensitivity */
+#define EVE_HAS_CRYSTAL
+#define FT81X_ENABLE
+
+#endif /* EVE_CONFIG_H */
diff --git a/fw/fe310/eos/eve/eve_def.h b/fw/fe310/eos/eve/eve_def.h
new file mode 100755
index 0000000..25e4927
--- /dev/null
+++ b/fw/fe310/eos/eve/eve_def.h
@@ -0,0 +1,872 @@
+/*

+@file    EVE.h

+@brief   Contains FT80x/FT81x/BT81x API definitions

+@version 4.0

+@date    2019-11-17

+@author  Rudolph Riedel

+

+@section LICENSE

+

+MIT License

+

+Copyright (c) 2016-2019 Rudolph Riedel

+

+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"),

+to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute,

+sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

+

+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

+

+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+

+@section History

+

+2.1

+- changes to this header

+

+2.2

+- commented out "#define DISPLAY() ((0UL<<24))" as it collides with a define in the Arduino IDE - the whole section of "macros" needs a rework...

+

+3.0

+- renamed from FT800.h to FT8.h

+- changed FT_ prefixes to FT8_

+- switched to standard-C compliant comment-style

+- changed FT81x register definitions from decimal to hex

+- verified all FT81x register definitions

+- moved FT81x registers marked as "reserved" to an #if 0 block

+

+3.1

+- moved several undocumented commands to an #if 0 block

+

+3.2

+- moved CMD_CRC to the block of undocumented commands as well

+

+3.3

+- changed macros BITMAP_LAYOUT_H and BITMAP_SIZE_H as submitted to github by "jventerprises"

+	These macros provide the extended bits for bitmaps bigger than 511 pixels, FTDIs original implementation that I used and never touched takes the arguments

+	as already processed and not the original values.

+	Note the one example in "FT81x Series Programmers Guide" Version 1.1 for displaying a 800x480 sized bitmap:

+	dl(BITMAP_SIZE_H(1, 0));

+	dl(BITMAP_SIZE(NEAREST, BORDER, BORDER, 288, 480));

+	Now you can use it like this:

+	EVE_cmd_dl(BITMAP_SIZE_H(800, 480));

+	EVE_cmd_dl(BITMAP_SIZE(NEAREST, BORDER, BORDER, 800, 480));

+

+4.0

+- renamed from FT8.h to EVE.h

+- renamed EVE_81X_ENABLE to FT81X_ENABLE

+- changed FT8_ prefixes to EVE_

+- rearranged things a bit with FT80x specific includes moved to the end and a "#if defined (BT81X_ENABLE)" block on top of the chip-specific includes

+- started to add specific BT81x defines

+- minor maintenance

+- changed OPT_FLASH to EVE_OPT_FLASH and OPT_FORMAT to EVE_OPT_FORMAT for consistency

+- added EVE_OPT_FILL which has been left out of the documentation for the BT81x so far

+- added a few BT81x specific macros

+- added a few FT81x/BT81x specific host commands

+- removed the preceding underscore from the include guard define to avoid potential undefined behavior

+- removed a bunch of defines for FT80x that I never implemented for FT81x

+

+*/

+

+#include "eve_config.h"

+

+#ifndef EVE_H_

+#define EVE_H_

+

+

+#define DL_CLEAR		0x26000000UL /* requires OR'd arguments */

+#define DL_CLEAR_RGB	0x02000000UL /* requires OR'd arguments */

+#define DL_COLOR_RGB	0x04000000UL /* requires OR'd arguments */

+#define DL_POINT_SIZE	0x0D000000UL /* requires OR'd arguments */

+#define DL_END			0x21000000UL

+#define DL_BEGIN		0x1F000000UL /* requires OR'd arguments */

+#define DL_DISPLAY		0x00000000UL

+

+#define CLR_COL              0x4

+#define CLR_STN              0x2

+#define CLR_TAG              0x1

+

+

+/* Host commands */

+#define EVE_ACTIVE	0x00  /* place FT8xx in active state */

+#define EVE_STANDBY	0x41  /* place FT8xx in Standby (clk running) */

+#define EVE_SLEEP	0x42  /* place FT8xx in Sleep (clk off) */

+#define EVE_PWRDOWN	0x50  /* place FT8xx in Power Down (core off) */

+#define EVE_CLKEXT	0x44  /* select external clock source */

+#define EVE_CLKINT	0x48  /* select internal clock source */

+#define EVE_CORERST	0x68  /* reset core - all registers default and processors reset */

+#define EVE_CLK48M	0x62  /* select 48MHz PLL output */

+#define EVE_CLK36M	0x61  /* select 36MHz PLL output */

+

+

+/* defines used for graphics commands */

+#define EVE_NEVER                0UL

+#define EVE_LESS                 1UL

+#define EVE_LEQUAL               2UL

+#define EVE_GREATER              3UL

+#define EVE_GEQUAL               4UL

+#define EVE_EQUAL                5UL

+#define EVE_NOTEQUAL             6UL

+#define EVE_ALWAYS               7UL

+

+

+/* Bitmap formats */

+#define EVE_ARGB1555             0UL

+#define EVE_L1                   1UL

+#define EVE_L4                   2UL

+#define EVE_L8                   3UL

+#define EVE_RGB332               4UL

+#define EVE_ARGB2                5UL

+#define EVE_ARGB4                6UL

+#define EVE_RGB565               7UL

+#define EVE_PALETTED             8UL

+#define EVE_TEXT8X8              9UL

+#define EVE_TEXTVGA              10UL

+#define EVE_BARGRAPH             11UL

+

+

+/* Bitmap filter types */

+#define EVE_NEAREST              0UL

+#define EVE_BILINEAR             1UL

+

+

+/* Bitmap wrap types */

+#define EVE_BORDER               0UL

+#define EVE_REPEAT               1UL

+

+

+/* Stencil defines */

+#define EVE_KEEP                 1UL

+#define EVE_REPLACE              2UL

+#define EVE_INCR                 3UL

+#define EVE_DECR                 4UL

+#define EVE_INVERT               5UL

+

+

+/* Graphics display list swap defines */

+#define EVE_DLSWAP_DONE          0UL

+#define EVE_DLSWAP_LINE          1UL

+#define EVE_DLSWAP_FRAME         2UL

+

+

+/* Interrupt bits */

+#define EVE_INT_SWAP             0x01

+#define EVE_INT_TOUCH            0x02

+#define EVE_INT_TAG              0x04

+#define EVE_INT_SOUND            0x08

+#define EVE_INT_PLAYBACK         0x10

+#define EVE_INT_CMDEMPTY         0x20

+#define EVE_INT_CMDFLAG          0x40

+#define EVE_INT_CONVCOMPLETE     0x80

+

+

+/* Touch mode */

+#define EVE_TMODE_OFF        	0

+#define EVE_TMODE_ONESHOT    	1

+#define EVE_TMODE_FRAME      	2

+#define EVE_TMODE_CONTINUOUS 	3

+

+

+/* Alpha blending */

+#define EVE_ZERO                 0UL

+#define EVE_ONE                  1UL

+#define EVE_SRC_ALPHA            2UL

+#define EVE_DST_ALPHA            3UL

+#define EVE_ONE_MINUS_SRC_ALPHA  4UL

+#define EVE_ONE_MINUS_DST_ALPHA  5UL

+

+

+/* Graphics primitives */

+#define EVE_BITMAPS              1UL

+#define EVE_POINTS               2UL

+#define EVE_LINES                3UL

+#define EVE_LINE_STRIP           4UL

+#define EVE_EDGE_STRIP_R         5UL

+#define EVE_EDGE_STRIP_L         6UL

+#define EVE_EDGE_STRIP_A         7UL

+#define EVE_EDGE_STRIP_B         8UL

+#define EVE_RECTS                9UL

+

+

+/* Widget command */

+#define EVE_OPT_MONO             1

+#define EVE_OPT_NODL             2

+#define EVE_OPT_FLAT             256

+#define EVE_OPT_CENTERX          512

+#define EVE_OPT_CENTERY          1024

+#define EVE_OPT_CENTER           (EVE_OPT_CENTERX | EVE_OPT_CENTERY)

+#define EVE_OPT_NOBACK           4096

+#define EVE_OPT_NOTICKS          8192

+#define EVE_OPT_NOHM             16384

+#define EVE_OPT_NOPOINTER        16384

+#define EVE_OPT_NOSECS           32768

+#define EVE_OPT_NOHANDS          49152

+#define EVE_OPT_RIGHTX           2048

+#define EVE_OPT_SIGNED           256

+

+

+/* Defines related to inbuilt font */

+#define EVE_NUMCHAR_PERFONT 		(128L)  /* number of font characters per bitmap handle */

+#define EVE_FONT_TABLE_SIZE 		(148L)  /* size of the font table - utilized for loopup by the graphics engine */

+#define EVE_FONT_TABLE_POINTER	(0xFFFFCUL) /* pointer to the inbuilt font tables starting from bitmap handle 16 */

+

+

+/* Audio sample type defines */

+#define EVE_LINEAR_SAMPLES       0UL	/* 8bit signed samples */

+#define EVE_ULAW_SAMPLES         1UL	/* 8bit ulaw samples */

+#define EVE_ADPCM_SAMPLES        2UL	/* 4bit ima adpcm samples */

+

+

+/* Synthesized sound */

+#define EVE_SILENCE              0x00

+#define EVE_SQUAREWAVE           0x01

+#define EVE_SINEWAVE             0x02

+#define EVE_SAWTOOTH             0x03

+#define EVE_TRIANGLE             0x04

+#define EVE_BEEPING              0x05

+#define EVE_ALARM                0x06

+#define EVE_WARBLE               0x07

+#define EVE_CAROUSEL             0x08

+#define EVE_PIPS(n)              (0x0F + (n))

+#define EVE_HARP                 0x40

+#define EVE_XYLOPHONE            0x41

+#define EVE_TUBA                 0x42

+#define EVE_GLOCKENSPIEL         0x43

+#define EVE_ORGAN                0x44

+#define EVE_TRUMPET              0x45

+#define EVE_PIANO                0x46

+#define EVE_CHIMES               0x47

+#define EVE_MUSICBOX             0x48

+#define EVE_BELL                 0x49

+#define EVE_CLICK                0x50

+#define EVE_SWITCH               0x51

+#define EVE_COWBELL              0x52

+#define EVE_NOTCH                0x53

+#define EVE_HIHAT                0x54

+#define EVE_KICKDRUM             0x55

+#define EVE_POP                  0x56

+#define EVE_CLACK                0x57

+#define EVE_CHACK                0x58

+#define EVE_MUTE                 0x60

+#define EVE_UNMUTE               0x61

+

+

+/* Synthesized sound frequencies, midi note */

+#define EVE_MIDI_A0   21

+#define EVE_MIDI_A_0  22

+#define EVE_MIDI_B0   23

+#define EVE_MIDI_C1   24

+#define EVE_MIDI_C_1  25

+#define EVE_MIDI_D1   26

+#define EVE_MIDI_D_1  27

+#define EVE_MIDI_E1   28

+#define EVE_MIDI_F1   29

+#define EVE_MIDI_F_1  30

+#define EVE_MIDI_G1   31

+#define EVE_MIDI_G_1  32

+#define EVE_MIDI_A1   33

+#define EVE_MIDI_A_1  34

+#define EVE_MIDI_B1   35

+#define EVE_MIDI_C2   36

+#define EVE_MIDI_C_2  37

+#define EVE_MIDI_D2   38

+#define EVE_MIDI_D_2  39

+#define EVE_MIDI_E2   40

+#define EVE_MIDI_F2   41

+#define EVE_MIDI_F_2  42

+#define EVE_MIDI_G2   43

+#define EVE_MIDI_G_2  44

+#define EVE_MIDI_A2   45

+#define EVE_MIDI_A_2  46

+#define EVE_MIDI_B2   47

+#define EVE_MIDI_C3   48

+#define EVE_MIDI_C_3  49

+#define EVE_MIDI_D3   50

+#define EVE_MIDI_D_3  51

+#define EVE_MIDI_E3   52

+#define EVE_MIDI_F3   53

+#define EVE_MIDI_F_3  54

+#define EVE_MIDI_G3   55

+#define EVE_MIDI_G_3  56

+#define EVE_MIDI_A3   57

+#define EVE_MIDI_A_3  58

+#define EVE_MIDI_B3   59

+#define EVE_MIDI_C4   60

+#define EVE_MIDI_C_4  61

+#define EVE_MIDI_D4   62

+#define EVE_MIDI_D_4  63

+#define EVE_MIDI_E4   64

+#define EVE_MIDI_F4   65

+#define EVE_MIDI_F_4  66

+#define EVE_MIDI_G4   67

+#define EVE_MIDI_G_4  68

+#define EVE_MIDI_A4   69

+#define EVE_MIDI_A_4  70

+#define EVE_MIDI_B4   71

+#define EVE_MIDI_C5   72

+#define EVE_MIDI_C_5  73

+#define EVE_MIDI_D5   74

+#define EVE_MIDI_D_5  75

+#define EVE_MIDI_E5   76

+#define EVE_MIDI_F5   77

+#define EVE_MIDI_F_5  78

+#define EVE_MIDI_G5   79

+#define EVE_MIDI_G_5  80

+#define EVE_MIDI_A5   81

+#define EVE_MIDI_A_5  82

+#define EVE_MIDI_B5   83

+#define EVE_MIDI_C6   84

+#define EVE_MIDI_C_6  85

+#define EVE_MIDI_D6   86

+#define EVE_MIDI_D_6  87

+#define EVE_MIDI_E6   88

+#define EVE_MIDI_F6   89

+#define EVE_MIDI_F_6  90

+#define EVE_MIDI_G6   91

+#define EVE_MIDI_G_6  92

+#define EVE_MIDI_A6   93

+#define EVE_MIDI_A_6  94

+#define EVE_MIDI_B6   95

+#define EVE_MIDI_C7   96

+#define EVE_MIDI_C_7  97

+#define EVE_MIDI_D7   98

+#define EVE_MIDI_D_7  99

+#define EVE_MIDI_E7   100

+#define EVE_MIDI_F7   101

+#define EVE_MIDI_F_7  102

+#define EVE_MIDI_G7   103

+#define EVE_MIDI_G_7  104

+#define EVE_MIDI_A7   105

+#define EVE_MIDI_A_7  106

+#define EVE_MIDI_B7   107

+#define EVE_MIDI_C8   108

+

+

+/* GPIO bits */

+#define EVE_GPIO0	0

+#define EVE_GPIO1	1	/* default gpio pin for audio shutdown, 1 - enable, 0 - disable */

+#define EVE_GPIO7	7	/* default gpio pin for display enable, 1 - enable, 0 - disable */

+

+

+/* Display rotation */

+#define EVE_DISPLAY_0		0	/* 0 degrees rotation */

+#define EVE_DISPLAY_180		1	/* 180 degrees rotation */

+

+

+/* commands common to EVE/EVE2/EVE3 */

+#define CMD_APPEND				0xFFFFFF1E

+#define CMD_BGCOLOR				0xFFFFFF09

+#define CMD_BUTTON				0xFFFFFF0D

+#define CMD_CALIBRATE			0xFFFFFF15

+#define CMD_CLOCK				0xFFFFFF14

+#define CMD_COLDSTART			0xFFFFFF32

+#define CMD_DIAL				0xFFFFFF2D

+#define CMD_DLSTART				0xFFFFFF00

+#define CMD_FGCOLOR				0xFFFFFF0A

+#define CMD_GAUGE				0xFFFFFF13

+#define CMD_GETMATRIX			0xFFFFFF33

+#define CMD_GETPROPS			0xFFFFFF25

+#define CMD_GETPTR				0xFFFFFF23

+#define CMD_GRADCOLOR			0xFFFFFF34

+#define CMD_GRADIENT			0xFFFFFF0B

+#define CMD_INFLATE				0xFFFFFF22

+#define CMD_INTERRUPT			0xFFFFFF02

+#define CMD_KEYS				0xFFFFFF0E

+#define CMD_LOADIDENTITY		0xFFFFFF26

+#define CMD_LOADIMAGE			0xFFFFFF24

+#define CMD_LOGO				0xFFFFFF31

+#define CMD_MEMCPY				0xFFFFFF1D

+#define CMD_MEMCRC				0xFFFFFF18

+#define CMD_MEMSET				0xFFFFFF1B

+#define CMD_MEMWRITE			0xFFFFFF1A

+#define CMD_MEMZERO				0xFFFFFF1C

+#define CMD_NUMBER				0xFFFFFF2E

+#define CMD_PROGRESS			0xFFFFFF0F

+#define CMD_REGREAD				0xFFFFFF19

+#define CMD_ROTATE				0xFFFFFF29

+#define CMD_SCALE				0xFFFFFF28

+#define CMD_SCREENSAVER			0xFFFFFF2F

+#define CMD_SCROLLBAR			0xFFFFFF11

+#define CMD_SETFONT				0xFFFFFF2B

+#define CMD_SETMATRIX			0xFFFFFF2A

+#define CMD_SKETCH				0xFFFFFF30

+#define CMD_SLIDER				0xFFFFFF10

+#define CMD_SNAPSHOT			0xFFFFFF1F

+#define CMD_SPINNER				0xFFFFFF16

+#define CMD_STOP				0xFFFFFF17

+#define CMD_SWAP				0xFFFFFF01

+#define CMD_TEXT				0xFFFFFF0C

+#define CMD_TOGGLE				0xFFFFFF12

+#define CMD_TRACK				0xFFFFFF2C

+#define CMD_TRANSLATE			0xFFFFFF27

+

+

+/* the following are undocumented commands that therefore should not be used */

+#if 0

+#define CMD_CRC					0xFFFFFF03

+#define CMD_HAMMERAUX			0xFFFFFF04

+#define CMD_MARCH				0xFFFFFF05

+#define CMD_IDCT				0xFFFFFF06

+#define CMD_EXECUTE				0xFFFFFF07

+#define CMD_GETPOINT			0xFFFFFF08

+#define CMD_TOUCH_TRANSFORM		0xFFFFFF20

+#endif

+

+

+/* FT8xx graphics engine specific macros useful for static display list generation */

+#define ALPHA_FUNC(func,ref) ((9UL<<24)|(((func)&7UL)<<8)|(((ref)&255UL)<<0))

+#define BEGIN(prim) ((31UL<<24)|(((prim)&15UL)<<0))

+#define BITMAP_HANDLE(handle) ((5UL<<24)|(((handle)&31UL)<<0))

+#define BITMAP_LAYOUT(format,linestride,height) ((7UL<<24)|(((format)&31UL)<<19)|(((linestride)&1023UL)<<9)|(((height)&511UL)<<0))

+#define BITMAP_SIZE(filter,wrapx,wrapy,width,height) ((8UL<<24)|(((filter)&1UL)<<20)|(((wrapx)&1UL)<<19)|(((wrapy)&1UL)<<18)|(((width)&511UL)<<9)|(((height)&511UL)<<0))

+#define BITMAP_TRANSFORM_A(a) ((21UL<<24)|(((a)&131071UL)<<0))

+#define BITMAP_TRANSFORM_B(b) ((22UL<<24)|(((b)&131071UL)<<0))

+#define BITMAP_TRANSFORM_C(c) ((23UL<<24)|(((c)&16777215UL)<<0))

+#define BITMAP_TRANSFORM_D(d) ((24UL<<24)|(((d)&131071UL)<<0))

+#define BITMAP_TRANSFORM_E(e) ((25UL<<24)|(((e)&131071UL)<<0))

+#define BITMAP_TRANSFORM_F(f) ((26UL<<24)|(((f)&16777215UL)<<0))

+#define BLEND_FUNC(src,dst) ((11UL<<24)|(((src)&7UL)<<3)|(((dst)&7UL)<<0))

+#define CALL(dest) ((29UL<<24)|(((dest)&65535UL)<<0))

+#define CELL(cell) ((6UL<<24)|(((cell)&127UL)<<0))

+#define CLEAR(c,s,t) ((38UL<<24)|(((c)&1UL)<<2)|(((s)&1UL)<<1)|(((t)&1UL)<<0))

+#define CLEAR_COLOR_A(alpha) ((15UL<<24)|(((alpha)&255UL)<<0))

+#define CLEAR_COLOR_RGB(red,green,blue) ((2UL<<24)|(((red)&255UL)<<16)|(((green)&255UL)<<8)|(((blue)&255UL)<<0))

+#define CLEAR_STENCIL(s) ((17UL<<24)|(((s)&255UL)<<0))

+#define CLEAR_TAG(s) ((18UL<<24)|(((s)&255UL)<<0))

+#define COLOR_A(alpha) ((16UL<<24)|(((alpha)&255UL)<<0))

+#define COLOR_MASK(r,g,b,a) ((32UL<<24)|(((r)&1UL)<<3)|(((g)&1UL)<<2)|(((b)&1UL)<<1)|(((a)&1UL)<<0))

+#define COLOR_RGB(red,green,blue) ((4UL<<24)|(((red)&255UL)<<16)|(((green)&255UL)<<8)|(((blue)&255UL)<<0))

+#define DISPLAY() ((0UL<<24))

+#define END() ((33UL<<24))

+#define JUMP(dest) ((30UL<<24)|(((dest)&65535UL)<<0))

+#define LINE_WIDTH(width) ((14UL<<24)|(((width)&4095UL)<<0))

+#define MACRO(m) ((37UL<<24)|(((m)&1UL)<<0))

+#define POINT_SIZE(size) ((13UL<<24)|(((size)&8191UL)<<0))

+#define RESTORE_CONTEXT() ((35UL<<24))

+#define RETURN() ((36UL<<24))

+#define SAVE_CONTEXT() ((34UL<<24))

+#define STENCIL_FUNC(func,ref,mask) ((10UL<<24)|(((func)&7UL)<<16)|(((ref)&255UL)<<8)|(((mask)&255UL)<<0))

+#define STENCIL_MASK(mask) ((19UL<<24)|(((mask)&255UL)<<0))

+#define STENCIL_OP(sfail,spass) ((12UL<<24)|(((sfail)&7UL)<<3)|(((spass)&7UL)<<0))

+#define TAG(s) ((3UL<<24)|(((s)&255UL)<<0))

+#define TAG_MASK(mask) ((20UL<<24)|(((mask)&1UL)<<0))

+#define VERTEX2F(x,y) ((1UL<<30)|(((x)&32767UL)<<15)|(((y)&32767UL)<<0))

+#define VERTEX2II(x,y,handle,cell) ((2UL<<30)|(((x)&511UL)<<21)|(((y)&511UL)<<12)|(((handle)&31UL)<<7)|(((cell)&127UL)<<0))

+

+

+/* ----------------- BT81x exclusive definitions -----------------*/

+#if defined (BT81X_ENABLE)

+

+#define EVE_GLFORMAT 31UL	/* used with BITMAP_LAYOUT to indicate bitmap-format is specified by BITMAP_EXT_FORMAT */

+

+#define DL_BITMAP_EXT_FORMAT	0x2E000000 /* requires OR'd arguments */

+

+/* extended Bitmap formats */

+#define EVE_COMPRESSED_RGBA_ASTC_4x4_KHR   37808UL

+#define EVE_COMPRESSED_RGBA_ASTC_5x4_KHR   37809UL

+#define EVE_COMPRESSED_RGBA_ASTC_5x5_KHR   37810UL

+#define EVE_COMPRESSED_RGBA_ASTC_6x5_KHR   37811UL

+#define EVE_COMPRESSED_RGBA_ASTC_6x6_KHR   37812UL

+#define EVE_COMPRESSED_RGBA_ASTC_8x5_KHR   37813UL

+#define EVE_COMPRESSED_RGBA_ASTC_8x6_KHR   37814UL

+#define EVE_COMPRESSED_RGBA_ASTC_8x8_KHR   37815UL

+#define EVE_COMPRESSED_RGBA_ASTC_10x5_KHR  37816UL

+#define EVE_COMPRESSED_RGBA_ASTC_10x6_KHR  37817UL

+#define EVE_COMPRESSED_RGBA_ASTC_10x8_KHR  37818UL

+#define EVE_COMPRESSED_RGBA_ASTC_10x10_KHR 37819UL

+#define EVE_COMPRESSED_RGBA_ASTC_12x10_KHR 37820UL

+#define EVE_COMPRESSED_RGBA_ASTC_12x12_KHR 37821UL

+

+

+#define EVE_RAM_ERR_REPORT      0x309800UL /* max 128 bytes null terminated string */

+#define EVE_RAM_FLASH           0x800000UL

+#define EVE_RAM_FLASH_POSTBLOB  0x801000UL

+

+#define EVE_OPT_FLASH  64UL

+#define EVE_OPT_FORMAT 4096UL

+#define EVE_OPT_FILL   8192UL

+

+

+/* additional commands for BT81x */

+#define CMD_BITMAP_TRANSFORM 0xFFFFFF21

+#define CMD_SYNC             0xFFFFFF42		/* does not need a dedicated function, just use EVE_cmd_dl(CMD_SYNC) */

+#define CMD_FLASHERASE       0xFFFFFF44		/* does not need a dedicated function, just use EVE_cmd_dl(CMD_FLASHERASE) */

+#define CMD_FLASHWRITE       0xFFFFFF45

+#define CMD_FLASHREAD        0xFFFFFF46

+#define CMD_FLASHUPDATE      0xFFFFFF47

+#define CMD_FLASHDETACH      0xFFFFFF48		/* does not need a dedicated function, just use EVE_cmd_dl(CMD_FLASHDETACH) */

+#define CMD_FLASHATTACH      0xFFFFFF49		/* does not need a dedicated function, just use EVE_cmd_dl(CMD_FLASHATTACH) */

+#define CMD_FLASHFAST        0xFFFFFF4A

+#define CMD_FLASHSPIDESEL    0xFFFFFF4B		/* does not need a dedicated function, just use EVE_cmd_dl(CMD_FLASHSPIDESEL) */

+#define CMD_FLASHSPITX       0xFFFFFF4C

+#define CMD_FLASHSPIRX       0xFFFFFF4D

+#define CMD_FLASHSOURCE      0xFFFFFF4E

+#define CMD_CLEARCACHE       0xFFFFFF4F		/* does not need a dedicated function, just use EVE_cmd_dl(CMD_CLEARCACHE) */

+#define CMD_INFLATE2         0xFFFFFF50

+#define CMD_ROTATEAROUND     0xFFFFFF51

+#define CMD_RESETFONTS       0xFFFFFF52		/* does not need a dedicated function, just use EVE_cmd_dl(CMD_RESETFONTS) */

+#define CMD_ANIMSTART        0xFFFFFF53

+#define CMD_ANIMSTOP         0xFFFFFF54

+#define CMD_ANIMXY           0xFFFFFF55

+#define CMD_ANIMDRAW         0xFFFFFF56

+#define CMD_GRADIENTA        0xFFFFFF57

+#define CMD_FILLWIDTH        0xFFFFFF58

+#define CMD_APPENDF          0xFFFFFF59

+#define CMD_ANIMFRAME        0xFFFFFF5A

+#define CMD_VIDEOSTARTF      0xFFFFFF5F		/* does not need a dedicated function, just use EVE_cmd_dl(CMD_VIDEOSTARTF) */

+

+#if 0

+/* some undocumented commands for BT81x */

+#define CMD_NOP              0xFFFFFF5B

+#define CMD_SHA1             0xFFFFFF5C

+#define CMD_HMAC             0xFFFFFF5D

+#define CMD_LAST_            0xFFFFFF5E

+

+#endif

+

+

+/* additional registers for BT81x */

+#define REG_ADAPTIVE_FRAMERATE 0x30257cUL

+#define REG_PLAYBACK_PAUSE     0x3025ecUL

+#define REG_FLASH_STATUS       0x3025f0UL

+#define REG_FLASH_SIZE         0x309024UL

+#define REG_PLAY_CONTROL       0x30914eUL

+#define REG_COPRO_PATCH_DTR    0x309162UL

+

+

+/* BT81x graphics engine specific macros */

+#define BITMAP_EXT_FORMAT(format) ((46UL<<24)|(((format)&65535UL)<<0))

+#define BITMAP_SWIZZLE(r,g,b,a) ((47UL<<24)|(((r)&7UL)<<9)|(((g)&7UL)<<6)|(((b)&7UL)<<3)|(((a)&7UL)<<0))

+#define BITMAP_SOURCE2(flash_or_ram, addr) ((1UL<<24)|((flash_or_ram) << 23)|(((addr)&8388607UL)<<0))

+#define INT_FRR() ((48UL<<24))

+

+#undef BITMAP_TRANSFORM_A

+#undef BITMAP_TRANSFORM_B

+#undef BITMAP_TRANSFORM_D

+#undef BITMAP_TRANSFORM_E

+

+#define BITMAP_TRANSFORM_A_EXT(p,v) ((21UL<<24)|(((p)&1UL)<<17)|(((v)&131071UL)<<0))

+#define BITMAP_TRANSFORM_B_EXT(p,v) ((22UL<<24)|(((p)&1UL)<<17)|(((v)&131071UL)<<0))

+#define BITMAP_TRANSFORM_D_EXT(p,v) ((24UL<<24)|(((p)&1UL)<<17)|(((v)&131071UL)<<0))

+#define BITMAP_TRANSFORM_E_EXT(p,v) ((25UL<<24)|(((p)&1UL)<<17)|(((v)&131071UL)<<0))

+

+#define BITMAP_TRANSFORM_A(a) BITMAP_TRANSFORM_A_EXT(0,a)

+#define BITMAP_TRANSFORM_B(b) BITMAP_TRANSFORM_B_EXT(0,b)

+#define BITMAP_TRANSFORM_D(d) BITMAP_TRANSFORM_D_EXT(0,d)

+#define BITMAP_TRANSFORM_E(e) BITMAP_TRANSFORM_E_EXT(0,e)

+

+#endif

+

+/* ----------------- FT81x / BT81x exclusive definitions -----------------*/

+#if defined (FT81X_ENABLE)

+

+

+/* Host commands */

+#define EVE_CLKSEL			0x61 /* configure system clock */

+#define EVE_RST_PULSE		0x68 /* reset core - all registers default and processors reset */

+#define EVE_PINDRIVE		0x70 /* setup drive strength for various pins */

+#define EVE_PIN_PD_STATE	0x71 /* setup how pins behave during power down */

+

+

+/* Memory definitions */

+#define EVE_RAM_G			0x000000UL

+#define EVE_ROM_CHIPID		0x0C0000UL

+#define EVE_ROM_FONT		0x1E0000UL

+#define EVE_ROM_FONT_ADDR	0x2FFFFCUL

+#define EVE_RAM_DL			0x300000UL

+#define EVE_RAM_REG			0x302000UL

+#define EVE_RAM_CMD			0x308000UL

+

+

+/* Memory buffer sizes */

+#define EVE_RAM_G_SIZE		1024*1024L

+#define EVE_CMDFIFO_SIZE	4*1024L

+#define EVE_RAM_DL_SIZE		8*1024L

+

+

+/* various additional defines for FT81x */

+#define EVE_ADC_DIFFERENTIAL     1UL

+#define EVE_ADC_SINGLE_ENDED     0UL

+

+#define EVE_INT_G8               18UL

+#define EVE_INT_L8C              12UL

+#define EVE_INT_VGA              13UL

+

+#define EVE_OPT_MEDIAFIFO        16UL

+#define EVE_OPT_FULLSCREEN       8UL

+#define EVE_OPT_NOTEAR           4UL

+#define EVE_OPT_SOUND            32UL

+

+#define EVE_PALETTED565          14UL

+#define EVE_PALETTED4444         15UL

+#define EVE_PALETTED8            16UL

+#define EVE_L2                   17UL

+

+

+/* additional commands for FT81x */

+#define CMD_MEDIAFIFO			0xFFFFFF39

+#define CMD_PLAYVIDEO			0xFFFFFF3A

+#define CMD_ROMFONT				0xFFFFFF3F

+#define CMD_SETBASE				0xFFFFFF38

+#define CMD_SETBITMAP			0xFFFFFF43

+#define CMD_SETFONT2			0xFFFFFF3B

+#define CMD_SETROTATE			0xFFFFFF36

+#define CMD_SETSCRATCH			0xFFFFFF3C

+#define CMD_SNAPSHOT2			0xFFFFFF37

+#define CMD_VIDEOFRAME			0xFFFFFF41

+#define CMD_VIDEOSTART			0xFFFFFF40

+

+

+/* the following are undocumented commands that therefore should not be used */

+#if 0

+#define CMD_CSKETCH				0xFFFFFF35

+#define CMD_INT_RAMSHARED		0xFFFFFF3D

+#define CMD_INT_SWLOADIMAGE		0xFFFFFF3E

+#endif

+

+

+/* Register definitions */

+#define REG_ANA_COMP         0x302184UL /* only listed in datasheet */

+#define REG_BIST_EN          0x302174UL /* only listed in datasheet */

+#define REG_CLOCK            0x302008UL

+#define REG_CMDB_SPACE       0x302574UL

+#define REG_CMDB_WRITE       0x302578UL

+#define REG_CMD_DL           0x302100UL

+#define REG_CMD_READ         0x3020f8UL

+#define REG_CMD_WRITE        0x3020fcUL

+#define REG_CPURESET         0x302020UL

+#define REG_CSPREAD          0x302068UL

+#define REG_CTOUCH_EXTENDED  0x302108UL

+#define REG_CTOUCH_TOUCH0_XY 0x302124UL /* only listed in datasheet */

+#define REG_CTOUCH_TOUCH4_X  0x30216cUL

+#define REG_CTOUCH_TOUCH4_Y  0x302120UL

+#define REG_CTOUCH_TOUCH1_XY 0x30211cUL

+#define REG_CTOUCH_TOUCH2_XY 0x30218cUL

+#define REG_CTOUCH_TOUCH3_XY 0x302190UL

+#define REG_TOUCH_CONFIG     0x302168UL

+#define REG_DATESTAMP        0x302564UL /* only listed in datasheet */

+#define REG_DITHER           0x302060UL

+#define REG_DLSWAP           0x302054UL

+#define REG_FRAMES           0x302004UL

+#define REG_FREQUENCY        0x30200cUL

+#define REG_GPIO             0x302094UL

+#define REG_GPIOX            0x30209cUL

+#define REG_GPIOX_DIR        0x302098UL

+#define REG_GPIO_DIR         0x302090UL

+#define REG_HCYCLE           0x30202cUL

+#define REG_HOFFSET          0x302030UL

+#define REG_HSIZE            0x302034UL

+#define REG_HSYNC0           0x302038UL

+#define REG_HSYNC1           0x30203cUL

+#define REG_ID               0x302000UL

+#define REG_INT_EN           0x3020acUL

+#define REG_INT_FLAGS        0x3020a8UL

+#define REG_INT_MASK         0x3020b0UL

+#define REG_MACRO_0          0x3020d8UL

+#define REG_MACRO_1          0x3020dcUL

+#define REG_MEDIAFIFO_READ   0x309014UL /* only listed in programmers guide */

+#define REG_MEDIAFIFO_WRITE  0x309018UL /* only listed in programmers guide */

+#define REG_OUTBITS          0x30205cUL

+#define REG_PCLK             0x302070UL

+#define REG_PCLK_POL         0x30206cUL

+#define REG_PLAY             0x30208cUL

+#define REG_PLAYBACK_FORMAT  0x3020c4UL

+#define REG_PLAYBACK_FREQ    0x3020c0UL

+#define REG_PLAYBACK_LENGTH  0x3020b8UL

+#define REG_PLAYBACK_LOOP    0x3020c8UL

+#define REG_PLAYBACK_PLAY    0x3020ccUL

+#define REG_PLAYBACK_READPTR 0x3020bcUL

+#define REG_PLAYBACK_START   0x3020b4UL

+#define REG_PWM_DUTY         0x3020d4UL

+#define REG_PWM_HZ           0x3020d0UL

+#define REG_RENDERMODE       0x302010UL /* only listed in datasheet */

+#define REG_ROTATE           0x302058UL

+#define REG_SNAPFORMAT       0x30201cUL /* only listed in datasheet */

+#define REG_SNAPSHOT         0x302018UL /* only listed in datasheet */

+#define REG_SNAPY            0x302014UL /* only listed in datasheet */

+#define REG_SOUND            0x302088UL

+#define REG_SPI_WIDTH        0x302188UL /* listed with false offset in programmers guide V1.1 */

+#define REG_SWIZZLE          0x302064UL

+#define REG_TAG              0x30207cUL

+#define REG_TAG_X            0x302074UL

+#define REG_TAG_Y            0x302078UL

+#define REG_TAP_CRC          0x302024UL /* only listed in datasheet */

+#define REG_TAP_MASK         0x302028UL /* only listed in datasheet */

+#define REG_TOUCH_ADC_MODE   0x302108UL

+#define REG_TOUCH_CHARGE     0x30210cUL

+#define REG_TOUCH_DIRECT_XY  0x30218cUL

+#define REG_TOUCH_DIRECT_Z1Z2 0x302190UL

+#define REG_TOUCH_MODE       0x302104UL

+#define REG_TOUCH_OVERSAMPLE 0x302114UL

+#define REG_TOUCH_RAW_XY     0x30211cUL

+#define REG_TOUCH_RZ         0x302120UL

+#define REG_TOUCH_RZTHRESH   0x302118UL

+#define REG_TOUCH_SCREEN_XY  0x302124UL

+#define REG_TOUCH_SETTLE     0x302110UL

+#define REG_TOUCH_TAG        0x30212cUL

+#define REG_TOUCH_TAG1       0x302134UL /* only listed in datasheet */

+#define REG_TOUCH_TAG1_XY    0x302130UL /* only listed in datasheet */

+#define REG_TOUCH_TAG2       0x30213cUL /* only listed in datasheet */

+#define REG_TOUCH_TAG2_XY    0x302138UL /* only listed in datasheet */

+#define REG_TOUCH_TAG3       0x302144UL /* only listed in datasheet */

+#define REG_TOUCH_TAG3_XY    0x302140UL /* only listed in datasheet */

+#define REG_TOUCH_TAG4       0x30214cUL /* only listed in datasheet */

+#define REG_TOUCH_TAG4_XY    0x302148UL /* only listed in datasheet */

+#define REG_TOUCH_TAG_XY     0x302128UL

+#define REG_TOUCH_TRANSFORM_A 0x302150UL

+#define REG_TOUCH_TRANSFORM_B 0x302154UL

+#define REG_TOUCH_TRANSFORM_C 0x302158UL

+#define REG_TOUCH_TRANSFORM_D 0x30215cUL

+#define REG_TOUCH_TRANSFORM_E 0x302160UL

+#define REG_TOUCH_TRANSFORM_F 0x302164UL

+#define REG_TRACKER          0x309000UL /* only listed in programmers guide */

+#define REG_TRACKER_1        0x309004UL /* only listed in programmers guide */

+#define REG_TRACKER_2        0x309008UL /* only listed in programmers guide */

+#define REG_TRACKER_3        0x30900cUL /* only listed in programmers guide */

+#define REG_TRACKER_4        0x309010UL /* only listed in programmers guide */

+#define REG_TRIM             0x302180UL

+#define REG_VCYCLE           0x302040UL

+#define REG_VOFFSET          0x302044UL

+#define REG_VOL_PB           0x302080UL

+#define REG_VOL_SOUND        0x302084UL

+#define REG_VSIZE            0x302048UL

+#define REG_VSYNC0           0x30204cUL

+#define REG_VSYNC1           0x302050UL

+

+#if 0

+#define REG_BUSYBITS         0x3020e8UL /* only listed as "reserved" in datasheet */

+#define REG_CRC              0x302178UL /* only listed as "reserved" in datasheet */

+#define REG_SPI_EARLY_TX     0x30217cUL /* only listed as "reserved" in datasheet */

+#define REG_ROMSUB_SEL       0x3020f0UL /* only listed as "reserved" in datasheet */

+#define REG_TOUCH_FAULT      0x302170UL /* only listed as "reserved" in datasheet */

+#endif

+

+

+/* FT81x graphics engine specific macros useful for static display list generation */

+

+/* beware, these are different to FTDIs implementation as these take the original values as parameters and not only the upper bits */

+#define BITMAP_LAYOUT_H(linestride,height) ((40UL<<24)|((((linestride&0xC00)>>10)&3UL)<<2)|((((height&0x600)>>9)&3UL)<<0))

+#define BITMAP_SIZE_H(width,height) ((41UL<<24)|((((width&0x600)>>9)&3UL)<<2)|((((height&0x600)>>9)&3UL)<<0))

+

+#define BITMAP_SOURCE(addr) ((1UL<<24)|(((addr)&4194303UL)<<0))

+#define NOP() ((45UL<<24))

+#define PALETTE_SOURCE(addr) ((42UL<<24)|(((addr)&4194303UL)<<0))

+#define SCISSOR_SIZE(width,height) ((28UL<<24)|(((width)&4095UL)<<12)|(((height)&4095UL)<<0))

+#define SCISSOR_XY(x,y) ((27UL<<24)|(((x)&2047UL)<<11)|(((y)&2047UL)<<0))

+#define VERTEX_FORMAT(frac) ((39UL<<24)|(((frac)&7UL)<<0))

+#define VERTEX_TRANSLATE_X(x) ((43UL<<24)|(((x)&131071UL)<<0))

+#define VERTEX_TRANSLATE_Y(y) ((44UL<<24)|(((y)&131071UL)<<0))

+

+

+

+/* ----------------- FT80x exclusive definitions -----------------*/

+#else

+

+/* Memory definitions */

+#define EVE_RAM_G			0x000000UL

+#define EVE_ROM_CHIPID		0x0C0000UL

+#define EVE_ROM_FONT		0x0BB23CUL

+#define EVE_ROM_FONT_ADDR	0x0FFFFCUL

+#define EVE_RAM_DL			0x100000UL

+#define EVE_RAM_PAL			0x102000UL

+#define EVE_RAM_CMD			0x108000UL

+#define EVE_RAM_SCREENSHOT	0x1C2000UL

+

+

+/* Memory buffer sizes */

+#define EVE_RAM_G_SIZE		256*1024L

+#define EVE_CMDFIFO_SIZE	4*1024L

+#define EVE_RAM_DL_SIZE		8*1024L

+#define EVE_RAM_PAL_SIZE	1*1024L

+

+

+/* Register definitions */

+#define REG_ID					0x102400UL

+#define REG_FRAMES				0x102404UL

+#define REG_CLOCK				0x102408UL

+#define REG_FREQUENCY			0x10240CUL

+#define REG_SCREENSHOT_EN		0x102410UL

+#define REG_SCREENSHOT_Y		0x102414UL

+#define REG_SCREENSHOT_START	0x102418UL

+#define REG_CPURESET 			0x10241CUL

+#define REG_TAP_CRC 			0x102420UL

+#define REG_TAP_MASK 			0x102424UL

+#define REG_HCYCLE 				0x102428UL

+#define REG_HOFFSET 			0x10242CUL

+#define REG_HSIZE 				0x102430UL

+#define REG_HSYNC0 				0x102434UL

+#define REG_HSYNC1 				0x102438UL

+#define REG_VCYCLE 				0x10243CUL

+#define REG_VOFFSET 			0x102440UL

+#define REG_VSIZE 				0x102444UL

+#define REG_VSYNC0 				0x102448UL

+#define REG_VSYNC1 				0x10244CUL

+#define REG_DLSWAP 				0x102450UL

+#define REG_ROTATE 				0x102454UL

+#define REG_OUTBITS 			0x102458UL

+#define REG_DITHER 				0x10245CUL

+#define REG_SWIZZLE 			0x102460UL

+#define REG_CSPREAD 			0x102464UL

+#define REG_PCLK_POL 			0x102468UL

+#define REG_PCLK 				0x10246CUL

+#define REG_TAG_X 				0x102470UL

+#define REG_TAG_Y 				0x102474UL

+#define REG_TAG 				0x102478UL

+#define REG_VOL_PB 				0x10247CUL

+#define REG_VOL_SOUND 			0x102480UL

+#define REG_SOUND 				0x102484UL

+#define REG_PLAY 				0x102488UL

+#define REG_GPIO_DIR 			0x10248CUL

+#define REG_GPIO 				0x102490UL

+#define REG_INT_FLAGS       	0x102498UL

+#define REG_INT_EN          	0x10249CUL

+#define REG_INT_MASK        	0x1024A0UL

+#define REG_PLAYBACK_START  	0x1024A4UL

+#define REG_PLAYBACK_LENGTH  	0x1024A8UL

+#define REG_PLAYBACK_READPTR 	0x1024ACUL

+#define REG_PLAYBACK_FREQ    	0x1024B0UL

+#define REG_PLAYBACK_FORMAT  	0x1024B4UL

+#define REG_PLAYBACK_LOOP    	0x1024B8UL

+#define REG_PLAYBACK_PLAY   	0x1024BCUL

+#define REG_PWM_HZ          	0x1024C0UL

+#define REG_PWM_DUTY        	0x1024C4UL

+#define REG_MACRO_0         	0x1024C8UL

+#define REG_MACRO_1         	0x1024CCUL

+#define REG_SCREENSHOT_BUSY		0x1024D8UL

+#define REG_CMD_READ         	0x1024E4UL

+#define REG_CMD_WRITE        	0x1024E8UL

+#define REG_CMD_DL           	0x1024ECUL

+#define REG_TOUCH_MODE       	0x1024F0UL

+#define REG_TOUCH_ADC_MODE   	0x1024F4UL

+#define REG_TOUCH_CHARGE     	0x1024F8UL

+#define REG_TOUCH_SETTLE     	0x1024FCUL

+#define REG_TOUCH_OVERSAMPLE 	0x102500UL

+#define REG_TOUCH_RZTHRESH   	0x102504UL

+#define REG_TOUCH_RAW_XY     	0x102508UL

+#define REG_TOUCH_RZ         	0x10250CUL

+#define REG_TOUCH_SCREEN_XY  	0x102510UL

+#define REG_TOUCH_TAG_XY     	0x102514UL

+#define REG_TOUCH_TAG        	0x102518UL

+#define REG_TOUCH_TRANSFORM_A	0x10251CUL

+#define REG_TOUCH_TRANSFORM_B	0x102520UL

+#define REG_TOUCH_TRANSFORM_C	0x102524UL

+#define REG_TOUCH_TRANSFORM_D	0x102528UL

+#define REG_TOUCH_TRANSFORM_E	0x10252CUL

+#define REG_TOUCH_TRANSFORM_F	0x102530UL

+#define REG_SCREENSHOT_READ		0x102554UL

+#define REG_TRIM				0x10256CUL

+#define REG_TOUCH_DIRECT_XY 	0x102574UL

+#define REG_TOUCH_DIRECT_Z1Z2	0x102578UL

+#define REG_TRACKER				0x109000UL

+

+/* FT80x graphics engine specific macros useful for static display list generation */

+#define BITMAP_SOURCE(addr) ((1UL<<24)|(((addr)&1048575UL)<<0))

+#define SCISSOR_SIZE(width,height) ((28UL<<24)|(((width)&1023UL)<<10)|(((height)&1023UL)<<0))

+#define SCISSOR_XY(x,y) ((27UL<<24)|(((x)&511UL)<<9)|(((y)&511UL)<<0))

+

+#endif

+

+#endif /* EVE_H_ */

diff --git a/fw/fe310/eos/eve/eve_kbd.c b/fw/fe310/eos/eve/eve_kbd.c
new file mode 100644
index 0000000..99210ce
--- /dev/null
+++ b/fw/fe310/eos/eve/eve_kbd.c
@@ -0,0 +1,161 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+
+#define KBD_X           0
+#define KBD_Y           575
+#define KBD_W           480
+#define KBD_H           225
+
+#define KEY_SPACERX     3
+#define KEY_SPACERY     5
+#define KEY_FONT        29
+#define MOD_FONT        21
+
+#define KEY_BS          0x08
+#define KEY_RET         0x0a
+
+#define FLAG_SHIFT      0x01
+#define FLAG_CTRL       0x02
+#define FLAG_FN         0x04
+
+#define TAG_SHIFT       0x11
+#define TAG_CTRL        0x12
+#define TAG_FN          0x13
+
+void eve_kbd_init(EVEKbd *kbd, EVERect *g, uint32_t mem_addr, uint32_t *mem_next) {
+    uint16_t mem_size;
+
+    if (g) {
+        kbd->g = *g;
+    } else {
+        kbd->g.x = KBD_X;
+        kbd->g.y = KBD_Y;
+        kbd->g.w = KBD_W;
+        kbd->g.h = KBD_H;
+    }
+    kbd->mem_addr = mem_addr;
+    kbd->key_modifier = 0;
+    kbd->key_count = 0;
+    kbd->key_down = 0;
+    kbd->putc = NULL;
+    kbd->param = NULL;
+
+    kbd->active = 1;
+    eve_write16(REG_CMD_DL, 0);
+    eve_kbd_draw(kbd);
+    eve_cmd_exec(1);
+    mem_size = eve_read16(REG_CMD_DL);
+    eve_cmd(CMD_MEMCPY, "www", mem_addr, EVE_RAM_DL, mem_size);
+    eve_cmd_exec(1);
+    kbd->active = 0;
+    kbd->mem_size = mem_size;
+
+    *mem_next = kbd->mem_addr + kbd->mem_size;
+}
+
+void eve_kbd_set_handler(EVEKbd *kbd, eve_kbd_input_handler_t putc, void *param) {
+    kbd->putc = putc;
+    kbd->param = param;
+}
+
+int eve_kbd_touch(EVEKbd *kbd, uint8_t tag0, int touch_idx) {
+    EVETouch *t;
+    uint16_t evt;
+
+    t = eve_touch_evt(tag0, touch_idx, 1, 126, &evt);
+    if (t && evt) {
+        if (evt & EVE_TOUCH_ETYPE_TAG) {
+            uint8_t _tag = t->tag;
+
+            if (_tag >= TAG_SHIFT && _tag <= TAG_FN) {
+                if (touch_idx == 0) {
+                    uint8_t f = (1 << (_tag - TAG_SHIFT));
+
+                    kbd->key_modifier = f;
+                    kbd->key_modifier_sticky &= f;
+                    kbd->key_modifier_lock &= f;
+                    if (kbd->key_modifier_lock & f) {
+                        kbd->key_modifier_lock &= ~f;
+                    } else if (kbd->key_modifier_sticky & f) {
+                        kbd->key_modifier_sticky &= ~f;
+                        kbd->key_modifier_lock |= f;
+                    } else {
+                        kbd->key_modifier_sticky |= f;
+                    }
+                }
+            } else {
+                kbd->key_count++;
+                kbd->key_down = _tag;
+                if (kbd->putc) {
+                    int c = _tag;
+
+                    if ((kbd->key_modifier & FLAG_CTRL) && (_tag >= '?') && (_tag <= '_')) c = (_tag - '@') & 0x7f;
+                    kbd->putc(kbd->param, c);
+                }
+            }
+        }
+        if (evt & EVE_TOUCH_ETYPE_TAG_UP) {
+            uint8_t _tag = t->tag_up;
+
+            if (_tag >= TAG_SHIFT && _tag <= TAG_FN) {
+                if (touch_idx == 0) {
+                    uint8_t f = (1 << (_tag - TAG_SHIFT));
+
+                    if (!((kbd->key_modifier_lock | kbd->key_modifier_sticky) & f)) {
+                        kbd->key_modifier &= ~f;
+                    }
+                }
+            } else {
+                if (kbd->key_count) kbd->key_count--;
+                if (!kbd->key_count) kbd->key_down = 0;
+                if (kbd->key_modifier_sticky) {
+                    if (touch_idx == 0) kbd->key_modifier &= ~kbd->key_modifier_sticky;
+                    kbd->key_modifier_sticky = 0;
+                }
+            }
+        }
+        kbd->active = 1;
+    } else {
+        kbd->active = 0;
+    }
+
+    return kbd->active;
+}
+
+uint8_t eve_kbd_draw(EVEKbd *kbd) {
+    if (kbd->active) {
+        int x = kbd->g.x;
+        int y = kbd->g.y;
+        int w = kbd->g.w;
+        int row_h = kbd->g.h / 5;
+        int key_w = (w - 9 * KEY_SPACERX) / 10 + 1;
+        int mod_w = key_w + key_w / 2;
+        int key_h = row_h - KEY_SPACERY;
+
+        eve_cmd_dl(SAVE_CONTEXT());
+        eve_cmd(CMD_KEYS, "hhhhhhs", x, y + row_h * 0, w, key_h, KEY_FONT, kbd->key_down, kbd->key_modifier & (FLAG_FN | FLAG_SHIFT) ? "!@#$%^&*()" : (kbd->key_modifier & FLAG_CTRL ? " @[\\]^_?  " : "1234567890"));
+        eve_cmd(CMD_KEYS, "hhhhhhs", x, y + row_h * 1, w, key_h, KEY_FONT, kbd->key_down, kbd->key_modifier & FLAG_FN ? "-_=+[]{}\\|" : kbd->key_modifier & (FLAG_SHIFT | FLAG_CTRL) ? "QWERTYUIOP" : "qwertyuiop");
+        eve_cmd(CMD_KEYS, "hhhhhhs", x + key_w / 2, y + row_h * 2, w - key_w, key_h, KEY_FONT, kbd->key_down, kbd->key_modifier & FLAG_FN ? "`~   ;:'\"" : kbd->key_modifier & (FLAG_SHIFT | FLAG_CTRL) ? "ASDFGHJKL" : "asdfghjkl");
+        eve_cmd(CMD_KEYS, "hhhhhhs", x + mod_w + KEY_SPACERX, y + row_h * 3, w - 2 * (mod_w + KEY_SPACERX), key_h, KEY_FONT, kbd->key_down, kbd->key_modifier & FLAG_FN ? " ,.<>/?" : kbd->key_modifier & (FLAG_SHIFT | FLAG_CTRL) ? "ZXCVBNM" : "zxcvbnm");
+        eve_cmd_dl(TAG(TAG_SHIFT));
+        eve_cmd(CMD_BUTTON, "hhhhhhs", x, y + row_h * 3, mod_w, key_h, MOD_FONT, kbd->key_modifier & FLAG_SHIFT ? EVE_OPT_FLAT : 0, "shift");
+        eve_cmd_dl(TAG(KEY_BS));
+        eve_cmd(CMD_BUTTON, "hhhhhhs", x + w - mod_w, y + row_h * 3, mod_w, key_h, MOD_FONT, kbd->key_down == KEY_BS ? EVE_OPT_FLAT : 0, "del");
+        eve_cmd_dl(TAG(TAG_FN));
+        eve_cmd(CMD_BUTTON, "hhhhhhs", x, y + row_h * 4, mod_w, key_h, MOD_FONT, kbd->key_modifier & FLAG_FN ? EVE_OPT_FLAT : 0, "fn");
+        eve_cmd_dl(TAG(TAG_CTRL));
+        eve_cmd(CMD_BUTTON, "hhhhhhs", x + mod_w + KEY_SPACERX, y + row_h * 4, mod_w, key_h, MOD_FONT, kbd->key_modifier & FLAG_CTRL ? EVE_OPT_FLAT : 0, "ctrl");
+        eve_cmd_dl(TAG(' '));
+        eve_cmd(CMD_BUTTON, "hhhhhhs", x + 2 * (mod_w + KEY_SPACERX), y + row_h * 4, w - 3 * (mod_w + KEY_SPACERX), key_h, MOD_FONT, kbd->key_down == ' ' ? EVE_OPT_FLAT : 0, "");
+        eve_cmd_dl(TAG(KEY_RET));
+        eve_cmd(CMD_BUTTON, "hhhhhhs", x + w - mod_w, y + row_h * 4, mod_w, key_h, MOD_FONT, kbd->key_down == KEY_RET ? EVE_OPT_FLAT : 0, "ret");
+        eve_cmd_dl(RESTORE_CONTEXT());
+    } else {
+        eve_cmd(CMD_APPEND, "ww", kbd->mem_addr, kbd->mem_size);
+    }
+
+    return 0x80;
+}
diff --git a/fw/fe310/eos/eve/eve_kbd.h b/fw/fe310/eos/eve/eve_kbd.h
new file mode 100644
index 0000000..b27f54d
--- /dev/null
+++ b/fw/fe310/eos/eve/eve_kbd.h
@@ -0,0 +1,22 @@
+#include <stdint.h>
+
+typedef void (*eve_kbd_input_handler_t) (void *, int);
+
+typedef struct EVEKbd {
+    EVERect g;
+    uint32_t mem_addr;
+    uint16_t mem_size;
+    uint8_t key_count;
+    uint8_t key_down;
+    uint8_t key_modifier;
+    uint8_t key_modifier_sticky;
+    uint8_t key_modifier_lock;
+    char active;
+    eve_kbd_input_handler_t putc;
+    void *param;
+} EVEKbd;
+
+void eve_kbd_init(EVEKbd *kbd, EVERect *g, uint32_t mem_addr, uint32_t *mem_next);
+void eve_kbd_set_handler(EVEKbd *kbd, eve_kbd_input_handler_t putc, void *param);
+int eve_kbd_touch(EVEKbd *kbd, uint8_t tag0, int touch_idx);
+uint8_t eve_kbd_draw(EVEKbd *kbd);
diff --git a/fw/fe310/eos/eve/eve_platform.c b/fw/fe310/eos/eve/eve_platform.c
new file mode 100644
index 0000000..e64d326
--- /dev/null
+++ b/fw/fe310/eos/eve/eve_platform.c
@@ -0,0 +1,63 @@
+#include <stdlib.h>
+
+#include "platform.h"
+
+#include "eos.h"
+#include "interrupt.h"
+#include "event.h"
+#include "eve.h"
+#include "eve_platform.h"
+
+#include "irq_def.h"
+
+static void handle_time(unsigned char type) {
+    eos_spi_dev_start(EOS_DEV_DISP);
+    eve_handle_time();
+    eos_spi_dev_stop();
+}
+
+static void handle_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
+    eos_spi_dev_start(EOS_DEV_DISP);
+    eve_handle_touch();
+    eos_spi_dev_stop();
+
+    GPIO_REG(GPIO_LOW_IP) = (1 << EVE_PIN_INTR);
+    GPIO_REG(GPIO_LOW_IE) |= (1 << EVE_PIN_INTR);
+}
+
+static void handle_intr(void) {
+    GPIO_REG(GPIO_LOW_IE) &= ~(1 << EVE_PIN_INTR);
+    eos_evtq_push_isr(EOS_EVT_UI | EVE_ETYPE_INTR, NULL, 0);
+    return;
+}
+
+void eve_time_sleep(uint32_t ms) {
+    eos_time_sleep(ms);
+}
+
+void eve_timer_set(uint32_t ms) {
+    eos_timer_set(ms, EOS_TIMER_ETYPE_UI);
+}
+
+void eve_timer_clear(void) {
+    eos_timer_clear(EOS_TIMER_ETYPE_UI);
+}
+
+uint64_t eve_time_get_tick(void) {
+    return eos_time_get_tick();
+}
+
+void eve_platform_init(void) {
+    eos_evtq_set_handler(EOS_EVT_UI, handle_evt);
+    eos_timer_set_handler(EOS_TIMER_ETYPE_UI, handle_time);
+
+    GPIO_REG(GPIO_INPUT_EN)     |=  (1 << EVE_PIN_INTR);
+    GPIO_REG(GPIO_OUTPUT_EN)    &= ~(1 << EVE_PIN_INTR);
+    GPIO_REG(GPIO_PULLUP_EN)    &= ~(1 << EVE_PIN_INTR);
+    GPIO_REG(GPIO_OUTPUT_XOR)   &= ~(1 << EVE_PIN_INTR);
+
+    GPIO_REG(GPIO_LOW_IE)       |=  (1 << EVE_PIN_INTR);
+    eos_intr_set(INT_GPIO_BASE + EVE_PIN_INTR, IRQ_PRIORITY_UI, handle_intr);
+
+    eos_spi_dev_set_div(EOS_DEV_DISP, 4);
+}
diff --git a/fw/fe310/eos/eve/eve_platform.h b/fw/fe310/eos/eve/eve_platform.h
new file mode 100644
index 0000000..41ec6b4
--- /dev/null
+++ b/fw/fe310/eos/eve/eve_platform.h
@@ -0,0 +1,27 @@
+#include <stdint.h>
+
+#include "../spi.h"
+#include "../timer.h"
+
+#define EVE_ETYPE_INTR      1
+#define EVE_PIN_INTR        0
+
+#define EVE_RTC_FREQ        EOS_TIMER_RTC_FREQ
+
+#define EVE_SPI_FLAG_BSWAP  EOS_SPI_FLAG_BSWAP
+#define EVE_SPI_FLAG_TX     EOS_SPI_FLAG_TX
+
+#define eve_spi_cs_set      eos_spi_cs_set
+#define eve_spi_cs_clear    eos_spi_cs_clear
+#define eve_spi_flush       eos_spi_flush
+#define eve_spi_xchg8       eos_spi_xchg8
+#define eve_spi_xchg16      eos_spi_xchg16
+#define eve_spi_xchg24      eos_spi_xchg24
+#define eve_spi_xchg32      eos_spi_xchg32
+
+void eve_time_sleep(uint32_t ms);
+void eve_timer_set(uint32_t ms);
+void eve_timer_clear(void);
+uint64_t eve_time_get_tick(void);
+
+void eve_platform_init(void);
diff --git a/fw/fe310/eos/eve/eve_text.c b/fw/fe310/eos/eve/eve_text.c
new file mode 100644
index 0000000..2ad4f6f
--- /dev/null
+++ b/fw/fe310/eos/eve/eve_text.c
@@ -0,0 +1,199 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_text.h"
+
+#define TEXT_ATTR   0x0A
+#define TEXT_CRSR   0x02DB
+
+#define LINE_IDX_ADD(l1,l2,s)       (((((l1) + (l2)) % (s)) + (s)) % (s))
+#define LINE_IDX_SUB(l1,l2,s)       (((((l1) - (l2)) % (s)) + (s)) % (s))
+
+#define LINE_IDX_LTE(l1,l2,s,h)     (LINE_IDX_SUB(l2,l1,s) <= (s) - (h))
+#define LINE_IDX_DIFF(l1,l2,s)      ((l1) > (l2) ? (l1) - (l2) : (s) + (l1) - (l2))
+
+static void scroll1(EVEText *box) {
+    box->line0 = (box->line0 + 1) % box->line_size;
+    eve_cmd(CMD_MEMSET, "www", box->mem_addr + box->ch_idx, 0x0, box->w * 2);
+    eve_cmd_exec(1);
+    box->dirty = 1;
+}
+
+void eve_text_init(EVEText *box, EVERect *g, uint16_t w, uint16_t h, uint8_t tag, uint16_t line_size, uint32_t mem_addr, uint32_t *mem_next) {
+    double scale_x, scale_y;
+
+    if (g->w == 0) {
+        g->w = w * 8;
+    }
+    if (g->h == 0) {
+        g->h = h * 16;
+    }
+
+    scale_x = (double)g->w / (w * 8);
+    scale_y = (double)g->h / (h * 16);
+    box->g = *g;
+    box->w = w;
+    box->h = h;
+    box->tag = tag;
+    box->transform_a = 256 / scale_x;
+    box->transform_e = 256 / scale_y;
+    box->ch_w = scale_x * 8;
+    box->ch_h = scale_y * 16;
+    box->dl_size = 17;
+    box->mem_addr = mem_addr;
+    box->line_size = line_size;
+    box->line0 = 0;
+    box->line_top = -1;
+    box->line_top0 = -1;
+    box->ch_idx = 0;
+    if (box->transform_a != 256) {
+        box->dl_size += 1;
+    }
+    if (box->transform_e != 256) {
+        box->dl_size += 1;
+    }
+
+    eve_touch_set_opt(tag, EVE_TOUCH_OPT_TRACK);
+
+    eve_cmd(CMD_MEMSET, "www", mem_addr, 0x0, box->w * 2 * box->line_size);
+    eve_cmd_exec(1);
+
+    eve_text_update(box);
+    *mem_next = box->mem_addr + box->w * 2 * box->line_size + box->dl_size * 4;
+}
+
+int eve_text_touch(EVEText *box, uint8_t tag0, int touch_idx) {
+    EVETouch *t;
+    uint16_t evt;
+    int ret = 0;
+
+    t = eve_touch_evt(tag0, touch_idx, box->tag, 1, &evt);
+    if (t && evt) {
+        if ((evt & EVE_TOUCH_ETYPE_TRACK_START) && (box->line_top < 0)) {
+            box->line_top = box->line0;
+            box->line_top0 = box->line0;
+        }
+        if ((evt & EVE_TOUCH_ETYPE_TRACK) && (box->line_top0 >=0)) {
+            int line = LINE_IDX_ADD(box->line_top0, (t->y0 - t->y) / box->ch_h, box->line_size);
+            if (LINE_IDX_LTE(line, box->line0, box->line_size, box->h)) {
+                box->line_top = line;
+                box->dirty = 1;
+            }
+        }
+        if (evt & EVE_TOUCH_ETYPE_TRACK_STOP) {
+            box->line_top0 = box->line_top;
+        }
+        ret = 1;
+    } else if (box->line_top >= 0) {
+        box->line_top = -1;
+        box->line_top0 = -1;
+        box->dirty = 1;
+    }
+    return ret;
+}
+
+uint8_t eve_text_draw(EVEText *box) {
+    if (box->dirty) {
+        eve_text_update(box);
+        box->dirty = 0;
+    }
+    eve_cmd(CMD_APPEND, "ww", box->mem_addr + box->w * 2 * box->line_size, box->dl_size * 4);
+    return box->tag;
+}
+
+int eve_text_putc(EVEText *box, int c) {
+    int line_c, line_n;
+
+    switch (c) {
+        case '\b':
+            eve_text_backspace(box);
+            break;
+        case '\r':
+        case '\n':
+            eve_text_newline(box);
+            break;
+        default:
+            line_c = box->ch_idx / 2 / box->w;
+
+            eve_write16(box->mem_addr + box->ch_idx, 0x0200 | (c & 0xff));
+            box->ch_idx = (box->ch_idx + 2) % (box->line_size * box->w * 2);
+            eve_write16(box->mem_addr + box->ch_idx, TEXT_CRSR);
+
+            line_n = box->ch_idx / 2 / box->w;
+            if ((line_c != line_n) && (LINE_IDX_DIFF(line_n, box->line0, box->line_size) == box->h)) scroll1(box);
+            break;
+    }
+    return EVE_OK;
+}
+
+void eve_text_update(EVEText *box) {
+    int text_h1;
+    int text_h2;
+    int line_top;
+
+    line_top = box->line_top >= 0 ? box->line_top : box->line0;
+
+    if (line_top + box->h > box->line_size) {
+        text_h1 = box->line_size - line_top;
+        text_h2 = box->h - text_h1;
+    } else {
+        text_h1 = box->h;
+        text_h2 = 0;
+    }
+    eve_dl_start(box->mem_addr + box->w * 2 * box->line_size);
+
+    eve_dl_write(SAVE_CONTEXT());
+    eve_dl_write(BEGIN(EVE_BITMAPS));
+    eve_dl_write(TAG(box->tag));
+    eve_dl_write(VERTEX_FORMAT(0));
+    eve_dl_write(BITMAP_HANDLE(15));
+    if (box->transform_a != 256) {
+        eve_dl_write(BITMAP_TRANSFORM_A(box->transform_a));
+    }
+    if (box->transform_e != 256) {
+        eve_dl_write(BITMAP_TRANSFORM_E(box->transform_e));
+    }
+    eve_dl_write(BITMAP_SOURCE(box->mem_addr + line_top * box->w * 2));
+    eve_dl_write(BITMAP_LAYOUT(EVE_TEXTVGA, box->w * 2, text_h1));
+    eve_dl_write(BITMAP_SIZE(EVE_NEAREST, EVE_BORDER, EVE_BORDER, box->w * box->ch_w, text_h1 * box->ch_h));
+    eve_dl_write(BITMAP_SIZE_H(box->w * box->ch_w, text_h1 * box->ch_h));
+    eve_dl_write(VERTEX2F(box->g.x, box->g.y));
+
+    if (text_h2) {
+        eve_dl_write(BITMAP_SOURCE(box->mem_addr));
+        eve_dl_write(BITMAP_LAYOUT(EVE_TEXTVGA, box->w * 2, text_h2));
+        eve_dl_write(BITMAP_SIZE(EVE_NEAREST, EVE_BORDER, EVE_BORDER, box->w * box->ch_w, text_h2 * box->ch_h));
+        eve_dl_write(BITMAP_SIZE_H(box->w * box->ch_w, text_h2 * box->ch_h));
+        eve_dl_write(VERTEX2F(box->g.x, box->g.y + text_h1 * box->ch_h));
+    } else {
+        eve_dl_write(NOP());
+        eve_dl_write(NOP());
+        eve_dl_write(NOP());
+        eve_dl_write(NOP());
+        eve_dl_write(NOP());
+    }
+
+    eve_dl_write(END());
+    eve_dl_write(RESTORE_CONTEXT());
+}
+
+void eve_text_newline(EVEText *box) {
+    int line = (box->ch_idx / 2 / box->w + 1) % box->line_size;
+
+    eve_write16(box->mem_addr + box->ch_idx, 0);
+    box->ch_idx = line * box->w * 2;
+    if (LINE_IDX_DIFF(line, box->line0, box->line_size) == box->h) scroll1(box);
+    eve_write16(box->mem_addr + box->ch_idx, TEXT_CRSR);
+}
+
+void eve_text_backspace(EVEText *box) {
+    uint16_t c;
+
+    eve_write16(box->mem_addr + box->ch_idx, 0);
+    box->ch_idx = (box->ch_idx - 2) % (box->line_size * box->w * 2);
+    if (eve_read16(box->mem_addr + box->ch_idx) == 0) {
+        box->ch_idx = (box->ch_idx + 2) % (box->line_size * box->w * 2);
+    }
+    eve_write16(box->mem_addr + box->ch_idx, TEXT_CRSR);
+}
diff --git a/fw/fe310/eos/eve/eve_text.h b/fw/fe310/eos/eve/eve_text.h
new file mode 100644
index 0000000..141816c
--- /dev/null
+++ b/fw/fe310/eos/eve/eve_text.h
@@ -0,0 +1,28 @@
+#include <stdint.h>
+
+typedef struct EVEText {
+    EVERect g;
+    uint16_t w;
+    uint16_t h;
+    uint32_t mem_addr;
+    uint16_t line_size;
+    uint16_t line0;
+    int line_top;
+    int line_top0;
+    uint16_t ch_idx;
+    uint16_t transform_a;
+    uint16_t transform_e;
+    uint8_t tag;
+    uint8_t ch_h;
+    uint8_t ch_w;
+    uint8_t dl_size;
+    char dirty;
+} EVEText;
+
+void eve_text_init(EVEText *box, EVERect *g, uint16_t w, uint16_t h, uint8_t tag, uint16_t line_size, uint32_t mem_addr, uint32_t *mem_next);
+int eve_text_touch(EVEText *box, uint8_t tag0, int touch_idx);
+uint8_t eve_text_draw(EVEText *box);
+int eve_text_putc(EVEText *box, int c);
+void eve_text_update(EVEText *box);
+void eve_text_newline(EVEText *box);
+void eve_text_backspace(EVEText *box);
diff --git a/fw/fe310/eos/eve/eve_touch.c b/fw/fe310/eos/eve/eve_touch.c
new file mode 100644
index 0000000..a6db581
--- /dev/null
+++ b/fw/fe310/eos/eve/eve_touch.c
@@ -0,0 +1,396 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+
+#define EVE_THRESHOLD_X         5
+#define EVE_THRESHOLD_Y         5
+#define EVE_TIMEOUT_TAP         1000
+#define EVE_TIMEOUT_TRACK       20
+#define EVE_TRAVG               3
+
+#define EVE_NOTOUCH             0x80000000
+
+#define EVE_MAX_TOUCH           5
+
+static int _intr_mask = EVE_INT_TAG | EVE_INT_TOUCH;
+static int _multitouch;
+static uint8_t _tag0;
+
+static EVETouch _touch[EVE_MAX_TOUCH];
+static EVETouchTimer _touch_timer;
+static EVEExtTracker _ext_tracker;
+
+static eve_touch_handler_t _touch_handler;
+static void *_touch_handler_param;
+static uint8_t _tag_opt[256];
+
+static const uint32_t _reg_touch[] = {
+    REG_CTOUCH_TOUCH0_XY,
+    REG_CTOUCH_TOUCH1_XY,
+    REG_CTOUCH_TOUCH2_XY,
+    REG_CTOUCH_TOUCH3_XY
+};
+
+static const uint32_t _reg_tag[] = {
+    REG_TOUCH_TAG,
+    REG_TOUCH_TAG1,
+    REG_TOUCH_TAG2,
+    REG_TOUCH_TAG3,
+    REG_TOUCH_TAG4
+};
+
+static const uint32_t _reg_track[] = {
+    REG_TRACKER,
+    REG_TRACKER_1,
+    REG_TRACKER_2,
+    REG_TRACKER_3,
+    REG_TRACKER_4
+};
+
+static void _touch_timer_set(uint8_t tag, uint8_t idx, uint16_t evt, int x0, int y0, uint32_t to) {
+    _touch_timer.tag = tag;
+    _touch_timer.idx = idx;
+    _touch_timer.evt = evt;
+    _touch_timer.x0 = x0;
+    _touch_timer.y0 = y0;
+    eve_timer_set(to);
+}
+
+static void _touch_timer_clear(void) {
+    eve_timer_clear();
+    _touch_timer.tag = 0;
+    _touch_timer.evt = 0;
+}
+
+void eve_handle_touch(void) {
+    int i;
+    char touch_ex = 0;
+    char int_ccomplete = 0;
+    uint8_t tag0 = _tag0;
+    uint8_t touch_last = 0;
+    uint8_t flags = eve_read8(REG_INT_FLAGS) & _intr_mask;
+
+    if (!_multitouch && (flags & EVE_INT_TOUCH)) _multitouch = 1;
+    for (i=0; i<EVE_MAX_TOUCH; i++) {
+        uint8_t touch_tag;
+        uint32_t touch_xy;
+        uint64_t now = 0;
+        EVETouch *touch = &_touch[i];
+
+        touch->evt = 0;
+        touch_xy = i < 4 ? eve_read32(_reg_touch[i]) : (((uint32_t)eve_read16(REG_CTOUCH_TOUCH4_X) << 16) | eve_read16(REG_CTOUCH_TOUCH4_Y));
+
+        if (touch_xy != 0x80008000) {
+            int16_t touch_x = touch_xy >> 16;
+            int16_t touch_y = touch_xy & 0xffff;
+            now = eve_time_get_tick();
+            if (touch->x == EVE_NOTOUCH) {
+                uint16_t _evt = 0;
+                uint16_t _eevt = 0;
+
+                if (!_tag0 && _touch_timer.tag) {
+                    if (_touch_timer.evt & EVE_TOUCH_ETYPE_TAP1) {
+                        int dx = touch_x - touch->x0;
+                        int dy = touch_y - touch->y0;
+                        dx = dx < 0 ? -dx : dx;
+                        dy = dy < 0 ? -dy : dy;
+                        if ((dx > EVE_THRESHOLD_X) || (dy > EVE_THRESHOLD_Y)) {
+                            touch->evt |= EVE_TOUCH_ETYPE_TAP1;
+                        } else {
+                            _evt |= EVE_TOUCH_ETYPE_TAP2;
+                            _eevt |= EVE_TOUCH_EETYPE_TAP2;
+                        }
+                    }
+                    if (_touch_timer.evt & EVE_TOUCH_ETYPE_TRACK) {
+                        touch->evt |= EVE_TOUCH_ETYPE_TRACK_STOP;
+                        if (_ext_tracker.stop) _ext_tracker.stop(&_touch_timer, touch);
+                    }
+                    if (_touch_handler && touch->evt) {
+                        _touch_handler(_touch_handler_param, _touch_timer.tag, i);
+                    }
+                    _touch_timer_clear();
+                }
+                touch->evt = EVE_TOUCH_ETYPE_POINT | _eevt;
+                touch->eevt = _eevt;
+                touch->tag0 = 0;
+                touch->tag = 0;
+                touch->tag_up = 0;
+                touch->tracker.tag = 0;
+                touch->tracker.track = 0;
+                touch->tracker.val = 0;
+                touch->t = 0;
+                touch->vx = 0;
+                touch->vy = 0;
+                touch->x0 = touch_x;
+                touch->y0 = touch_y;
+            } else if (touch->t) {
+                int dt = now - touch->t;
+                int vx = ((int)touch_x - touch->x) * (int)(EVE_RTC_FREQ) / dt;
+                int vy = ((int)touch_y - touch->y) * (int)(EVE_RTC_FREQ) / dt;
+                touch->vx = touch->vx ? (vx + touch->vx * EVE_TRAVG) / (EVE_TRAVG + 1) : vx;
+                touch->vy = touch->vy ? (vy + touch->vy * EVE_TRAVG) / (EVE_TRAVG + 1) : vy;
+                touch->t = now;
+            }
+            touch->x = touch_x;
+            touch->y = touch_y;
+            if (_multitouch || (flags & EVE_INT_TAG)) {
+                touch_tag = eve_read8(_reg_tag[i]);
+            } else {
+                touch_tag = touch->tag;
+            }
+            touch_ex = 1;
+        } else {
+            touch_tag = 0;
+            if (touch->x != EVE_NOTOUCH) {
+                touch->evt |= EVE_TOUCH_ETYPE_POINT_UP;
+                if (_touch_timer.tag && (i == 0)) {
+                    _touch_timer.evt &= ~EVE_TOUCH_ETYPE_LPRESS;
+                    if (!_touch_timer.evt) _touch_timer_clear();
+                }
+                if (touch->tracker.tag && touch->tracker.track) {
+                    if (!_touch_timer.tag && (_tag_opt[touch->tracker.tag] & EVE_TOUCH_OPT_TRACK_EXT)) {
+                        _touch_timer_set(touch->tracker.tag, i, EVE_TOUCH_ETYPE_TRACK, touch->x, touch->y, EVE_TIMEOUT_TRACK);
+                        if (_ext_tracker.init) _ext_tracker.init(&_touch_timer, touch);
+                    } else {
+                        touch->evt |= EVE_TOUCH_ETYPE_TRACK_STOP;
+                    }
+                }
+                touch->x = EVE_NOTOUCH;
+                touch->y = EVE_NOTOUCH;
+            }
+        }
+        if (touch_tag != touch->tag) {
+            if (touch_tag) {
+                if (!touch->tag0) {
+                    touch->tag0 = touch_tag;
+                    if (_tag_opt[touch_tag] & EVE_TOUCH_OPT_TRACK_MASK) {
+                        touch->tracker.tag = touch_tag;
+                    }
+                    if (touch->tracker.tag && !(_tag_opt[touch->tracker.tag] & EVE_TOUCH_OPT_TRACK_XY)) {
+                        touch->tracker.track = 1;
+                        touch->evt |= EVE_TOUCH_ETYPE_TRACK_START;
+                        touch->t = now;
+                    }
+                    if (!_tag0 && (_tag_opt[touch_tag] & EVE_TOUCH_OPT_TIMER_MASK)) {
+                        uint16_t _evt = 0;
+
+                        if (_tag_opt[touch_tag] & EVE_TOUCH_OPT_LPRESS) _evt |= EVE_TOUCH_ETYPE_LPRESS;
+                        if (_tag_opt[touch_tag] & EVE_TOUCH_OPT_DTAP) _evt |= EVE_TOUCH_ETYPE_TAP1;
+                        _touch_timer_set(touch_tag, 0, _evt, 0, 0, EVE_TIMEOUT_TAP);
+                    }
+                }
+                if (!_tag0) _tag0 = tag0 = touch_tag;
+            }
+            touch->tag_up = touch->tag;
+            if (touch->tag_up) touch->evt |= EVE_TOUCH_ETYPE_TAG_UP;
+            touch->tag = touch_tag;
+            if (touch->tag) touch->evt |= EVE_TOUCH_ETYPE_TAG;
+        }
+        if (touch_xy != 0x80008000) {
+            char _track = touch->tracker.tag && !touch->tracker.track;
+            char _timer = _touch_timer.tag && (_touch_timer.evt & EVE_TOUCH_ETYPE_TIMER_MASK) && (i == 0);
+            if (_track || _timer) {
+                int dx = touch->x - touch->x0;
+                int dy = touch->y - touch->y0;
+                dx = dx < 0 ? -dx : dx;
+                dy = dy < 0 ? -dy : dy;
+                if (_track) {
+                    if ((dx > EVE_THRESHOLD_X) && !(_tag_opt[touch->tracker.tag] & EVE_TOUCH_OPT_TRACK_X)) {
+                        touch->tracker.tag = 0;
+                    }
+                    if ((dy > EVE_THRESHOLD_Y) && !(_tag_opt[touch->tracker.tag] & EVE_TOUCH_OPT_TRACK_Y)) {
+                        touch->tracker.tag = 0;
+                    }
+                    if (touch->tracker.tag && ((dx > EVE_THRESHOLD_X) || (dy > EVE_THRESHOLD_Y))) {
+                        if (dx > EVE_THRESHOLD_X) {
+                            touch->eevt |= touch->x > touch->x0 ? EVE_TOUCH_EETYPE_TRACK_RIGHT : EVE_TOUCH_EETYPE_TRACK_LEFT;
+                        }
+                        if (dy > EVE_THRESHOLD_Y) {
+                            touch->eevt |= touch->y > touch->y0 ? EVE_TOUCH_EETYPE_TRACK_DOWN : EVE_TOUCH_EETYPE_TRACK_UP;
+                        }
+                        touch->tracker.track = 1;
+                        touch->evt |= EVE_TOUCH_ETYPE_TRACK_START;
+                        touch->t = now;
+                    }
+                }
+                if (_timer && ((dx > EVE_THRESHOLD_X) || (dy > EVE_THRESHOLD_Y))) {
+                    _touch_timer.evt &= ~EVE_TOUCH_ETYPE_TIMER_MASK;
+                    if (!_touch_timer.evt) _touch_timer_clear();
+                }
+            }
+            if (touch->tracker.tag && touch->tracker.track) {
+                touch->evt |= _tag_opt[touch->tracker.tag] & EVE_TOUCH_OPT_TRACK_MASK;
+            }
+            if (touch->evt & EVE_TOUCH_ETYPE_TRACK_REG) {
+                uint32_t touch_track = eve_read32(_reg_track[i]);
+                if (touch->tracker.tag == (touch_track & 0xff)) {
+                    touch->tracker.val = touch_track >> 16;
+                } else {
+                    touch->evt &= ~EVE_TOUCH_ETYPE_TRACK_REG;
+                }
+            }
+            if (touch->tracker.tag || _touch_timer.tag) int_ccomplete = 1;
+        }
+        if (touch->evt) touch_last = i + 1;
+        if (!_multitouch) break;
+    }
+
+    if (!touch_ex) {
+        _tag0 = 0;
+        _multitouch = 0;
+    }
+
+    if (_multitouch) int_ccomplete = 1;
+
+    if (int_ccomplete && !(_intr_mask & EVE_INT_CONVCOMPLETE)) {
+        _intr_mask |= EVE_INT_CONVCOMPLETE;
+        eve_write8(REG_INT_MASK, _intr_mask);
+    }
+    if (!int_ccomplete && (_intr_mask & EVE_INT_CONVCOMPLETE)) {
+        _intr_mask &= ~EVE_INT_CONVCOMPLETE;
+        eve_write8(REG_INT_MASK, _intr_mask);
+    }
+
+    for (i=0; i<touch_last; i++) {
+        EVETouch *touch = &_touch[i];
+        if (_touch_handler && touch->evt) {
+            _touch_handler(_touch_handler_param, tag0, i);
+        }
+    }
+}
+
+void eve_handle_time(void) {
+    if (_touch_handler && _touch_timer.tag) {
+        EVETouch *touch = &_touch[_touch_timer.idx];
+
+        if ((_touch_timer.evt & EVE_TOUCH_ETYPE_TAP1) && (touch->x != EVE_NOTOUCH)) _touch_timer.evt &= ~EVE_TOUCH_ETYPE_TAP1;
+
+        if (_touch_timer.evt) {
+            int more = 0;
+            int _x = touch->x;
+            int _y = touch->y;
+
+            touch->evt = _touch_timer.evt;
+            if (touch->evt & EVE_TOUCH_ETYPE_TRACK) {
+                if (_ext_tracker.tick) more = _ext_tracker.tick(&_touch_timer, touch);
+                if (more) {
+                    eve_timer_set(EVE_TIMEOUT_TRACK);
+                } else {
+                    touch->evt |= EVE_TOUCH_ETYPE_TRACK_STOP;
+                    if (_ext_tracker.stop) _ext_tracker.stop(&_touch_timer, touch);
+                }
+            } else if (touch->evt & EVE_TOUCH_ETYPE_LPRESS) {
+                touch->eevt |= EVE_TOUCH_EETYPE_LPRESS;
+            }
+
+            _touch_handler(_touch_handler_param, _touch_timer.tag, _touch_timer.idx);
+
+            if (!more) _touch_timer_clear();
+            touch->x = _x;
+            touch->y = _y;
+        } else {
+            _touch_timer_clear();
+        }
+    }
+}
+
+void eve_touch_init(void) {
+    int i;
+
+    for (i=0; i<EVE_MAX_TOUCH; i++) {
+        EVETouch *touch = &_touch[i];
+        touch->x = EVE_NOTOUCH;
+        touch->y = EVE_NOTOUCH;
+    }
+    eve_write8(REG_INT_MASK, _intr_mask);
+    eve_write8(REG_INT_EN, 0x01);
+    while(eve_read8(REG_INT_FLAGS));
+}
+
+void eve_touch_set_handler(eve_touch_handler_t handler, void *param) {
+    _touch_handler = handler;
+    _touch_handler_param = param;
+}
+
+EVETouch *eve_touch_evt(uint8_t tag0, int touch_idx, uint8_t tag_min, uint8_t tag_n, uint16_t *evt) {
+    int tag_max;
+    uint8_t _tag;
+    uint16_t _evt;
+    EVETouch *ret = NULL;
+
+    *evt = 0;
+
+    if ((touch_idx < 0) || (touch_idx > 4)) return ret;
+    if (tag_min == EVE_TAG_NOTAG) return ret;
+
+    tag_max = tag_min + tag_n;
+    if ((tag0 < tag_min) || (tag0 >= tag_max)) return ret;
+
+    ret = &_touch[touch_idx];
+    _evt = ret->evt;
+
+    *evt |= _evt & EVE_TOUCH_ETYPE_POINT_MASK;
+    if (_evt & EVE_TOUCH_ETYPE_TAG) {
+        _tag = ret->tag;
+        if ((_tag >= tag_min) && (_tag < tag_max)) *evt |= EVE_TOUCH_ETYPE_TAG;
+    }
+    if (_evt & EVE_TOUCH_ETYPE_TAG_UP) {
+        _tag = ret->tag_up;
+        if ((_tag >= tag_min) && (_tag < tag_max)) *evt |= EVE_TOUCH_ETYPE_TAG_UP;
+    }
+    if (_evt & EVE_TOUCH_ETYPE_TRACK_REG) {
+        _tag = ret->tracker.tag;
+        if ((_tag >= tag_min) && (_tag < tag_max)) *evt |= EVE_TOUCH_ETYPE_TRACK_REG;
+    }
+    if (_evt & EVE_TOUCH_ETYPE_TRACK_MASK) {
+        _tag = ret->tracker.tag;
+        if ((_tag >= tag_min) && (_tag < tag_max)) *evt |= _evt & EVE_TOUCH_ETYPE_TRACK_MASK;
+    }
+    if (_evt & (EVE_TOUCH_ETYPE_LPRESS | EVE_TOUCH_ETYPE_TAP1 | EVE_TOUCH_ETYPE_TAP2)) {
+        _tag = _touch_timer.tag;
+        if ((_tag >= tag_min) && (_tag < tag_max)) *evt |= _evt & (EVE_TOUCH_ETYPE_LPRESS | EVE_TOUCH_ETYPE_TAP1 | EVE_TOUCH_ETYPE_TAP2);
+    }
+
+    return ret;
+}
+
+void eve_touch_set_opt(uint8_t tag, uint8_t opt) {
+    _tag_opt[tag] = opt;
+}
+
+uint8_t eve_touch_get_opt(uint8_t tag) {
+    return _tag_opt[tag];
+}
+
+void eve_touch_clear_opt(void) {
+    memset(_tag_opt, 0, sizeof(_tag_opt));
+}
+
+EVETouchTimer *eve_touch_get_timer(void) {
+    return &_touch_timer;
+}
+
+void eve_etrack_set(eve_etrack_init_t init, eve_etrack_tick_t tick, eve_etrack_stop_t stop, void *param) {
+    _ext_tracker.init = init;
+    _ext_tracker.tick = tick;
+    _ext_tracker.stop = stop;
+    _touch_timer.p = param;
+}
+
+void eve_etrack_start(int i) {
+    EVETouch *touch = &_touch[i];
+
+    _touch_timer_set(touch->tracker.tag, i, EVE_TOUCH_ETYPE_TRACK, touch->x, touch->y, EVE_TIMEOUT_TRACK);
+    if (_ext_tracker.init) _ext_tracker.init(&_touch_timer, touch);
+}
+
+void eve_etrack_stop(void) {
+    if (_ext_tracker.stop) {
+        EVETouch *touch = &_touch[_touch_timer.idx];
+
+        touch->evt = EVE_TOUCH_ETYPE_TRACK_STOP;
+        _ext_tracker.stop(&_touch_timer, touch);
+    }
+    _touch_timer_clear();
+}
diff --git a/fw/fe310/eos/eve/eve_touch.h b/fw/fe310/eos/eve/eve_touch.h
new file mode 100644
index 0000000..9f935bc
--- /dev/null
+++ b/fw/fe310/eos/eve/eve_touch.h
@@ -0,0 +1,102 @@
+#include <stdint.h>
+
+/* events */
+#define EVE_TOUCH_ETYPE_TRACK           0x0001
+#define EVE_TOUCH_ETYPE_TRACK_REG       0x0002
+#define EVE_TOUCH_ETYPE_TRACK_START     0x0004
+#define EVE_TOUCH_ETYPE_TRACK_STOP      0x0008
+#define EVE_TOUCH_ETYPE_TAG             0x0010
+#define EVE_TOUCH_ETYPE_TAG_UP          0x0020
+#define EVE_TOUCH_ETYPE_POINT           0x0040
+#define EVE_TOUCH_ETYPE_POINT_UP        0x0080
+#define EVE_TOUCH_ETYPE_LPRESS          0x0100
+#define EVE_TOUCH_ETYPE_TAP1            0x0200
+#define EVE_TOUCH_ETYPE_TAP2            0x0400
+
+#define EVE_TOUCH_ETYPE_TAG_MASK        (EVE_TOUCH_ETYPE_TAG    | EVE_TOUCH_ETYPE_TAG_UP)
+#define EVE_TOUCH_ETYPE_TAP_MASK        (EVE_TOUCH_ETYPE_TAP1   | EVE_TOUCH_ETYPE_TAP2)
+#define EVE_TOUCH_ETYPE_TRACK_MASK      (EVE_TOUCH_ETYPE_TRACK  | EVE_TOUCH_ETYPE_TRACK_START   | EVE_TOUCH_ETYPE_TRACK_STOP)
+#define EVE_TOUCH_ETYPE_POINT_MASK      (EVE_TOUCH_ETYPE_POINT  | EVE_TOUCH_ETYPE_POINT_UP)
+#define EVE_TOUCH_ETYPE_TIMER_MASK      (EVE_TOUCH_OPT_LPRESS   | EVE_TOUCH_OPT_DTAP)
+
+/* extended events */
+#define EVE_TOUCH_EETYPE_LPRESS         0x0001
+#define EVE_TOUCH_EETYPE_TAP2           0x0002
+
+#define EVE_TOUCH_EETYPE_TRACK_LEFT     0x1000
+#define EVE_TOUCH_EETYPE_TRACK_RIGHT    0x2000
+#define EVE_TOUCH_EETYPE_TRACK_UP       0x4000
+#define EVE_TOUCH_EETYPE_TRACK_DOWN     0x8000
+
+#define EVE_TOUCH_EETYPE_TRACK_X        (EVE_TOUCH_EETYPE_TRACK_LEFT    | EVE_TOUCH_EETYPE_TRACK_RIGHT)
+#define EVE_TOUCH_EETYPE_TRACK_Y        (EVE_TOUCH_EETYPE_TRACK_UP      | EVE_TOUCH_EETYPE_TRACK_DOWN)
+#define EVE_TOUCH_EETYPE_TRACK_XY       (EVE_TOUCH_EETYPE_TRACK_X       | EVE_TOUCH_EETYPE_TRACK_Y)
+
+/* tag options */
+#define EVE_TOUCH_OPT_TRACK             EVE_TOUCH_ETYPE_TRACK
+#define EVE_TOUCH_OPT_TRACK_REG         EVE_TOUCH_ETYPE_TRACK_REG
+#define EVE_TOUCH_OPT_TRACK_X           0x04
+#define EVE_TOUCH_OPT_TRACK_Y           0x08
+#define EVE_TOUCH_OPT_TRACK_EXT         0x10
+#define EVE_TOUCH_OPT_LPRESS            0x40
+#define EVE_TOUCH_OPT_DTAP              0x80
+
+#define EVE_TOUCH_OPT_TRACK_XY          (EVE_TOUCH_OPT_TRACK_X  | EVE_TOUCH_OPT_TRACK_Y)
+#define EVE_TOUCH_OPT_TRACK_MASK        (EVE_TOUCH_OPT_TRACK    | EVE_TOUCH_OPT_TRACK_REG)
+#define EVE_TOUCH_OPT_TIMER_MASK        (EVE_TOUCH_OPT_LPRESS   | EVE_TOUCH_OPT_DTAP)
+
+typedef void (*eve_touch_handler_t) (void *, uint8_t, int);
+
+typedef struct EVETouch {
+    int x;
+    int y;
+    int vx;
+    int vy;
+    int x0;
+    int y0;
+    uint64_t t;
+    uint16_t evt;
+    uint16_t eevt;
+    uint8_t tag0;
+    uint8_t tag;
+    uint8_t tag_up;
+    struct {
+        uint8_t tag;
+        uint8_t track;
+        uint16_t val;
+    } tracker;
+} EVETouch;
+
+typedef struct EVETouchTimer {
+    uint8_t tag;
+    uint8_t idx;
+    uint16_t evt;
+    int x0;
+    int y0;
+    void *p;
+} EVETouchTimer;
+
+void eve_handle_touch(void);
+void eve_handle_time(void);
+
+void eve_touch_init(void);
+void eve_touch_set_handler(eve_touch_handler_t handler, void *handler_param);
+EVETouch *eve_touch_evt(uint8_t tag0, int touch_idx, uint8_t tag_min, uint8_t tag_n, uint16_t *evt);
+void eve_touch_set_opt(uint8_t tag, uint8_t opt);
+uint8_t eve_touch_get_opt(uint8_t tag);
+void eve_touch_clear_opt(void);
+EVETouchTimer *eve_touch_get_timer(void);
+
+typedef void (*eve_etrack_init_t) (EVETouchTimer *, EVETouch *);
+typedef int  (*eve_etrack_tick_t) (EVETouchTimer *, EVETouch *);
+typedef void (*eve_etrack_stop_t) (EVETouchTimer *, EVETouch *);
+
+typedef struct EVEExtTracker {
+    eve_etrack_init_t init;
+    eve_etrack_tick_t tick;
+    eve_etrack_stop_t stop;
+} EVEExtTracker;
+
+void eve_etrack_set(eve_etrack_init_t init, eve_etrack_tick_t tick, eve_etrack_stop_t stop, void *param);
+void eve_etrack_start(int i);
+void eve_etrack_stop(void);
diff --git a/fw/fe310/eos/eve/eve_track.c b/fw/fe310/eos/eve/eve_track.c
new file mode 100644
index 0000000..97ef72b
--- /dev/null
+++ b/fw/fe310/eos/eve/eve_track.c
@@ -0,0 +1,77 @@
+#include <stdlib.h>
+#include <math.h>
+
+#include "eve.h"
+
+void eve_track_init(void) {
+    eve_etrack_set(eve_track_inert_init, eve_track_inert_tick, NULL, NULL);
+}
+
+void eve_track_set(uint8_t type, void *param) {
+    switch (type) {
+        case EVE_TRACK_TYPE_INERT:
+            eve_etrack_set(eve_track_inert_init, eve_track_inert_tick, NULL, NULL);
+            break;
+        case EVE_TRACK_TYPE_OSC:
+            eve_etrack_set(NULL, eve_track_osc_tick, NULL, param);
+            break;
+        default:
+            break;
+    }
+}
+
+void eve_track_inert_init(EVETouchTimer *timer, EVETouch *touch) {
+    double d = sqrt(touch->vx * touch->vx + touch->vy * touch->vy);
+    int fc = (double)(EVE_RTC_FREQ) * d / EVE_TRACK_FRICTION;
+
+    timer->p = (void *)fc;
+}
+
+int eve_track_inert_tick(EVETouchTimer *timer, EVETouch *touch) {
+    int dt = eve_time_get_tick() - touch->t;
+    int fc = (int)timer->p;
+    int more = 1;
+
+    if (dt >= fc / 2) {
+        dt = fc / 2;
+        more = 0;
+    }
+    touch->x = timer->x0 + (touch->vx * dt - touch->vx * dt / fc * dt) / (int)(EVE_RTC_FREQ);
+    touch->y = timer->y0 + (touch->vy * dt - touch->vy * dt / fc * dt) / (int)(EVE_RTC_FREQ);
+    return more;
+}
+
+void eve_track_osc_init(EVETrackOsc *p, int x, int y, uint32_t T, double d, uint32_t t_max) {
+    double f0 = 2 * M_PI / (T * EVE_RTC_FREQ / 1000);
+
+    if (d < 0) d = 0;
+    if (d > 1) d = 1;
+    p->x = x;
+    p->y = y;
+    p->f = d ? f0 * sqrt(1 - d * d) : f0;
+    p->d = d;
+    p->a = -d * f0;
+    p->t_max = t_max;
+}
+
+int eve_track_osc_tick(EVETouchTimer *timer, EVETouch *touch) {
+    EVETrackOsc *p = (EVETrackOsc *)timer->p;
+    int dt = eve_time_get_tick() - touch->t;
+    int ax = timer->x0 - p->x;
+    int ay = timer->y0 - p->y;
+    int more = 1;
+
+    if (p->t_max && (dt >= p->t_max)) {
+        dt = p->t_max;
+        more = 0;
+    }
+    if (p->d) {
+        double e = exp(p->a * dt);
+        ax = ax * e;
+        ay = ay * e;
+        if ((ax == 0) && (ay == 0)) more = 0;
+    }
+    touch->x = p->x + ax * cos(p->f * dt);
+    touch->y = p->y + ay * cos(p->f * dt);
+    return more;
+}
diff --git a/fw/fe310/eos/eve/eve_track.h b/fw/fe310/eos/eve/eve_track.h
new file mode 100644
index 0000000..a5fd113
--- /dev/null
+++ b/fw/fe310/eos/eve/eve_track.h
@@ -0,0 +1,22 @@
+#include <stdint.h>
+
+#define EVE_TRACK_TYPE_INERT            1
+#define EVE_TRACK_TYPE_OSC              2
+#define EVE_TRACK_FRICTION              500
+
+typedef struct EVETrackOsc {
+    int x;
+    int y;
+    double f;
+    double d;
+    double a;
+    uint32_t t_max;
+} EVETrackOsc;
+
+void eve_track_init(void);
+void eve_track_set(uint8_t type, void *param);
+
+void eve_track_inert_init(EVETouchTimer *timer, EVETouch *touch);
+int eve_track_inert_tick(EVETouchTimer *timer, EVETouch *touch);
+void eve_track_osc_init(EVETrackOsc *p, int x, int y, uint32_t T, double d, uint32_t t_max);
+int eve_track_osc_tick(EVETouchTimer *timer, EVETouch *touch);
diff --git a/fw/fe310/eos/eve/screen/Makefile b/fw/fe310/eos/eve/screen/Makefile
new file mode 100644
index 0000000..b6cb393
--- /dev/null
+++ b/fw/fe310/eos/eve/screen/Makefile
@@ -0,0 +1,17 @@
+include ../../../common.mk
+
+CFLAGS += -I.. -I../..
+
+obj = font.o screen.o window.o kbdwin.o page.o form.o
+
+
+%.o: %.c %.h
+	$(CC) $(CFLAGS) -c $<
+
+%.o: %.S
+	$(CC) $(CFLAGS) -c $<
+
+all: $(obj)
+
+clean:
+	rm -f *.o
\ No newline at end of file
diff --git a/fw/fe310/eos/eve/screen/font.c b/fw/fe310/eos/eve/screen/font.c
new file mode 100644
index 0000000..da02983
--- /dev/null
+++ b/fw/fe310/eos/eve/screen/font.c
@@ -0,0 +1,61 @@
+#include <stdlib.h>
+
+#include "eve.h"
+#include "unicode.h"
+
+#include "font.h"
+
+void eve_font_init(EVEFont *font, uint8_t font_id) {
+    uint32_t p;
+
+    p = eve_read32(EVE_ROM_FONT_ADDR);
+    p += (148 * (font_id - 16));
+    font->id = font_id;
+    font->w = eve_read32(p + 136);
+    font->h = eve_read32(p + 140);
+    eve_readb(p, font->w_ch, 128);
+}
+
+uint8_t eve_font_ch_w(EVEFont *font, utf32_t ch) {
+    if (ch < 128) return font->w_ch[ch];
+    return 0;
+}
+
+uint16_t eve_font_str_w(EVEFont *font, utf8_t *str) {
+    uint16_t r = 0;
+    utf32_t ch;
+    uint8_t ch_w;
+    uint8_t ch_l;
+
+    if (str == NULL) return 0;
+
+    while (*str) {
+        ch_l = utf8_dec(str, &ch);
+        ch_w = eve_font_ch_w(font, ch);
+        r += ch_w;
+        str += ch_l;
+    }
+
+    return r;
+}
+
+uint16_t eve_font_buf_w(EVEFont *font, utf8_t *buf, uint16_t buf_len) {
+    int i = 0;
+    uint16_t r = 0;
+    utf32_t ch;
+    uint8_t ch_w;
+    uint8_t ch_l;
+
+    while (i < buf_len) {
+        ch_l = utf8_dec(buf + i, &ch);
+        ch_w = eve_font_ch_w(font, ch);
+        r += ch_w;
+        i += ch_l;
+    }
+
+    return r;
+}
+
+uint8_t eve_font_h(EVEFont *font) {
+    return font->h;
+}
\ No newline at end of file
diff --git a/fw/fe310/eos/eve/screen/font.h b/fw/fe310/eos/eve/screen/font.h
new file mode 100644
index 0000000..aff038c
--- /dev/null
+++ b/fw/fe310/eos/eve/screen/font.h
@@ -0,0 +1,14 @@
+#include <stdint.h>
+
+typedef struct EVEFont {
+    uint8_t id;
+    uint8_t w;
+    uint8_t h;
+    uint8_t w_ch[128];
+} EVEFont;
+
+void eve_font_init(EVEFont *font, uint8_t font_id);
+uint8_t eve_font_ch_w(EVEFont *font, utf32_t ch);
+uint16_t eve_font_str_w(EVEFont *font, utf8_t *str);
+uint16_t eve_font_buf_w(EVEFont *font, utf8_t *buf, uint16_t buf_len);
+uint8_t eve_font_h(EVEFont *font);
diff --git a/fw/fe310/eos/eve/screen/form.c b/fw/fe310/eos/eve/screen/form.c
new file mode 100644
index 0000000..f7d37ee
--- /dev/null
+++ b/fw/fe310/eos/eve/screen/form.c
@@ -0,0 +1,109 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+#include "unicode.h"
+
+#include "screen.h"
+#include "window.h"
+#include "page.h"
+#include "font.h"
+#include "form.h"
+
+#include "widget/label.h"
+#include "widget/widget.h"
+
+int eve_form_init(EVEForm *form, EVEWindow *window, EVEWidget *widget, uint16_t widget_size, eve_page_open_t open, eve_page_close_t close) {
+    memset(form, 0, sizeof(EVEForm));
+    eve_page_init(&form->p, window, eve_form_touch, eve_form_draw, open, close, eve_form_handle_evt, eve_form_update_g);
+    form->widget = widget;
+    form->widget_size = widget_size;
+    eve_form_update_g(&form->p, NULL);
+}
+
+int eve_form_touch(EVEView *v, uint8_t tag0, int touch_idx) {
+    EVEForm *form = (EVEForm *)v;
+    EVEWidget *widget = form->widget;
+    int i, ret = 0;
+
+    if (touch_idx == 0) {
+        EVETouch *t;
+        uint16_t evt;
+
+        t = eve_touch_evt(tag0, touch_idx, form->p.v.window->tag, 1, &evt);
+        if (t && evt) {
+            eve_form_handle_evt(&form->p, NULL, t, evt, tag0, touch_idx);
+            if ((evt & EVE_TOUCH_ETYPE_POINT_UP) && (t->eevt == 0)) eve_page_set_focus(&form->p, NULL, NULL);
+            ret = 1;
+        }
+    }
+    for (i=0; i<form->widget_size; i++) {
+        if (eve_page_rect_visible(&form->p, &widget->g)) {
+            int r = widget->touch(widget, &form->p, tag0, touch_idx);
+            ret = ret || r;
+        }
+        widget = eve_widget_next(widget);
+    }
+
+    return ret;
+}
+
+uint8_t eve_form_draw(EVEView *v, uint8_t tag0) {
+    EVEForm *form = (EVEForm *)v;
+    EVEWidget *widget = form->widget;
+    int i;
+    uint8_t tagN = tag0;
+
+    eve_cmd_dl(SAVE_CONTEXT());
+    eve_cmd_dl(VERTEX_FORMAT(0));
+    eve_cmd_dl(VERTEX_TRANSLATE_X(eve_page_scr_x(&form->p, 0) * 16));
+    eve_cmd_dl(VERTEX_TRANSLATE_Y(eve_page_scr_y(&form->p, 0) * 16));
+
+    for (i=0; i<form->widget_size; i++) {
+        if (widget->label && eve_page_rect_visible(&form->p, &widget->label->g)) {
+            eve_cmd_dl(TAG_MASK(0));
+            eve_label_draw(widget->label);
+            eve_cmd_dl(TAG_MASK(1));
+        }
+        if (eve_page_rect_visible(&form->p, &widget->g)) tagN = widget->draw(widget, &form->p, tagN);
+        widget = eve_widget_next(widget);
+    }
+
+    eve_cmd_dl(RESTORE_CONTEXT());
+
+    for (i=tag0; i<tagN; i++) {
+        eve_touch_set_opt(i, eve_touch_get_opt(i) | EVE_TOUCH_OPT_TRACK | EVE_TOUCH_OPT_TRACK_XY | EVE_TOUCH_OPT_TRACK_EXT);
+    }
+    if (v->window->tag != EVE_TAG_NOTAG) eve_touch_set_opt(v->window->tag, eve_touch_get_opt(v->window->tag) | EVE_TOUCH_OPT_TRACK | EVE_TOUCH_OPT_TRACK_XY | EVE_TOUCH_OPT_TRACK_EXT);
+
+    return tagN;
+}
+
+void eve_form_handle_evt(EVEPage *page, EVEWidget *widget, EVETouch *touch, uint16_t evt, uint8_t tag0, int touch_idx) {
+    /*
+    if (evt & EVE_TOUCH_ETYPE_TRACK_Y) {
+        // do scroll
+    } else {
+        // go back / forward
+    }
+    */
+}
+
+void eve_form_update_g(EVEPage *page, EVEWidget *_widget) {
+    EVEForm *form = (EVEForm *)page;
+    EVEWidget *widget = form->widget;
+    int i;
+    uint16_t h = 0;
+
+    for (i=0; i<form->widget_size; i++) {
+        if (widget->label) {
+            widget->label->g.y = h;
+            if (widget->label->g.w + widget->g.w > form->p.v.window->g.w) h += widget->label->g.h;
+        }
+        widget->g.y = h;
+        h += widget->g.h;
+
+        widget = eve_widget_next(widget);
+    }
+}
diff --git a/fw/fe310/eos/eve/screen/form.h b/fw/fe310/eos/eve/screen/form.h
new file mode 100644
index 0000000..7742b8c
--- /dev/null
+++ b/fw/fe310/eos/eve/screen/form.h
@@ -0,0 +1,15 @@
+#include <stdint.h>
+
+struct EVEWidget;
+
+typedef struct EVEForm {
+    EVEPage p;
+    struct EVEWidget *widget;
+    uint16_t widget_size;
+} EVEForm;
+
+int eve_form_init(EVEForm *form, EVEWindow *window, struct EVEWidget *widget, uint16_t widget_size, eve_page_open_t open, eve_page_close_t close);
+int eve_form_touch(EVEView *v, uint8_t tag0, int touch_idx);
+uint8_t eve_form_draw(EVEView *v, uint8_t tag0);
+void eve_form_handle_evt(EVEPage *page, struct EVEWidget *widget, EVETouch *touch, uint16_t evt, uint8_t tag0, int touch_idx);
+void eve_form_update_g(EVEPage *page, struct EVEWidget *widget);
diff --git a/fw/fe310/eos/eve/screen/kbdwin.c b/fw/fe310/eos/eve/screen/kbdwin.c
new file mode 100644
index 0000000..decedad
--- /dev/null
+++ b/fw/fe310/eos/eve/screen/kbdwin.c
@@ -0,0 +1,39 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+
+#include "screen.h"
+#include "window.h"
+#include "kbdwin.h"
+
+static int kbdwin_touch(EVEView *v, uint8_t tag0, int touch_idx) {
+    EVEKbdView *k_view = (EVEKbdView *)v;
+
+    return eve_kbd_touch(&k_view->kbd, tag0, touch_idx);
+}
+
+static uint8_t kbdwin_draw(EVEView *v, uint8_t tag0) {
+    EVEKbdView *k_view = (EVEKbdView *)v;
+
+    eve_kbd_draw(&k_view->kbd);
+    return tag0;
+}
+
+void eve_kbdwin_init(EVEKbdWin *kbd_win, EVEScreen *screen) {
+    EVEKbd *kbd = &kbd_win->view.kbd;
+
+    kbd_win->view.v.touch = kbdwin_touch;
+    kbd_win->view.v.draw = kbdwin_draw;
+    eve_kbd_init(kbd, NULL, screen->mem_next, &screen->mem_next);
+    eve_window_init(&kbd_win->win, &kbd->g, &kbd_win->view.v, screen);
+}
+
+void eve_kbdwin_append(EVEKbdWin *kbd_win) {
+    EVEKbd *kbd = &kbd_win->view.kbd;
+    EVEWindow *window = &kbd_win->win;
+
+    eve_screen_set_kbd(window->screen, kbd);
+    eve_window_append(window);
+}
diff --git a/fw/fe310/eos/eve/screen/kbdwin.h b/fw/fe310/eos/eve/screen/kbdwin.h
new file mode 100644
index 0000000..2cc14d9
--- /dev/null
+++ b/fw/fe310/eos/eve/screen/kbdwin.h
@@ -0,0 +1,14 @@
+#include <stdint.h>
+
+typedef struct EVEKbdView {
+    EVEView v;
+    EVEKbd kbd;
+} EVEKbdView;
+
+typedef struct EVEKbdWin {
+    EVEWindow win;
+    EVEKbdView view;
+} EVEKbdWin;
+
+void eve_kbdwin_init(EVEKbdWin *kbd_win, EVEScreen *screen);
+void eve_kbdwin_append(EVEKbdWin *kbd_win);
diff --git a/fw/fe310/eos/eve/screen/page.c b/fw/fe310/eos/eve/screen/page.c
new file mode 100644
index 0000000..f54056c
--- /dev/null
+++ b/fw/fe310/eos/eve/screen/page.c
@@ -0,0 +1,100 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+#include "unicode.h"
+
+#include "screen.h"
+#include "window.h"
+#include "page.h"
+#include "font.h"
+
+#include "widget/label.h"
+#include "widget/widget.h"
+
+#define CH_EOF              0x1a
+
+void eve_page_init(EVEPage *page, EVEWindow *window, eve_view_touch_t touch, eve_view_draw_t draw, eve_page_open_t open, eve_page_close_t close, eve_page_evt_handler_t handle_evt, eve_page_g_updater_t update_g) {
+    memset(page, 0, sizeof(EVEPage));
+    page->v.touch = touch;
+    page->v.draw = draw;
+    page->v.window = window;
+    page->open = open;
+    page->close = close;
+    page->handle_evt = handle_evt;
+    page->update_g = update_g;
+    page->widget_f = NULL;
+    window->view = (EVEView *)page;
+}
+
+int16_t eve_page_x(EVEPage *page, int16_t x) {
+    return x + page->win_x - page->v.window->g.x;
+}
+
+int16_t eve_page_y(EVEPage *page, int16_t y) {
+    return y + page->win_y - page->v.window->g.y;
+}
+
+int16_t eve_page_scr_x(EVEPage *page, int16_t x) {
+    return x - page->win_x + page->v.window->g.x;
+}
+
+int16_t eve_page_scr_y(EVEPage *page, int16_t y) {
+    return y - page->win_y + page->v.window->g.y;
+}
+
+void eve_page_set_focus(EVEPage *page, EVEWidget *widget, EVERect *f) {
+    if (page->widget_f != widget) {
+        EVEKbd *kbd = eve_screen_get_kbd(page->v.window->screen);
+
+        if (kbd) {
+            EVEWidget *widget_f = page->widget_f;
+
+            if (widget_f && widget_f->putc) {
+                eve_screen_hide_kbd(page->v.window->screen);
+                widget_f->putc(page, CH_EOF);
+            }
+            if (widget && widget->putc) {
+                eve_kbd_set_handler(kbd, widget->putc, page);
+                eve_screen_show_kbd(page->v.window->screen);
+            } else {
+                eve_kbd_set_handler(kbd, NULL, NULL);
+            }
+        }
+        page->widget_f = widget;
+    }
+
+    if (f) {
+        EVERect g;
+
+        eve_window_visible_g(page->v.window, &g);
+        g.x -= page->v.window->g.x;
+        g.y -= page->v.window->g.y;
+
+        if (f->x < page->win_x + g.x) {
+            page->win_x = f->x - g.x;
+        }
+        if (f->y < page->win_y + g.y) {
+            page->win_y = f->y - g.y;
+        }
+        if ((f->x + f->w) > (page->win_x + g.x + g.w)) {
+            page->win_x = (f->x + f->w) - (g.x + g.w);
+        }
+        if ((f->y + f->h) > (page->win_y + g.y + g.h)) {
+            page->win_y = (f->y + f->h) - (g.y + g.h);
+        }
+    }
+}
+
+EVEWidget *eve_page_get_focus(EVEPage *page) {
+    return page->widget_f;
+}
+
+int eve_page_rect_visible(EVEPage *page, EVERect *g) {
+    uint16_t w = page->v.window->g.w;
+    uint16_t h = page->v.window->g.h;
+
+    if (((g->x + g->w) >= page->win_x) && ((g->y + g->h) >= page->win_y) && (g->x <= (page->win_x + w)) && (g->y <= (page->win_y + h))) return 1;
+    return 0;
+}
diff --git a/fw/fe310/eos/eve/screen/page.h b/fw/fe310/eos/eve/screen/page.h
new file mode 100644
index 0000000..eebedfd
--- /dev/null
+++ b/fw/fe310/eos/eve/screen/page.h
@@ -0,0 +1,30 @@
+#include <stdint.h>
+
+struct EVEPage;
+struct EVEWidget;
+
+typedef void (*eve_page_open_t) (struct EVEPage *, struct EVEPage *);
+typedef void (*eve_page_close_t) (struct EVEPage *);
+typedef void (*eve_page_evt_handler_t) (struct EVEPage *, struct EVEWidget *, EVETouch *, uint16_t, uint8_t, int);
+typedef void (*eve_page_g_updater_t) (struct EVEPage *, struct EVEWidget *);
+
+typedef struct EVEPage {
+    EVEView v;
+    int16_t win_x;
+    int16_t win_y;
+    eve_page_open_t open;
+    eve_page_close_t close;
+    eve_page_evt_handler_t handle_evt;
+    eve_page_g_updater_t update_g;
+    struct EVEWidget *widget_f;
+} EVEPage;
+
+void eve_page_init(EVEPage *page, EVEWindow *window, eve_view_touch_t touch, eve_view_draw_t draw, eve_page_open_t open, eve_page_close_t close, eve_page_evt_handler_t handle_evt, eve_page_g_updater_t update_g);
+int16_t eve_page_x(EVEPage *page, int16_t x);
+int16_t eve_page_y(EVEPage *page, int16_t y);
+int16_t eve_page_scr_x(EVEPage *page, int16_t x);
+int16_t eve_page_scr_y(EVEPage *page, int16_t y);
+
+void eve_page_set_focus(EVEPage *page, struct EVEWidget *widget, EVERect *focus);
+struct EVEWidget *eve_page_get_focus(EVEPage *page);
+int eve_page_rect_visible(EVEPage *page, EVERect *g);
diff --git a/fw/fe310/eos/eve/screen/screen.c b/fw/fe310/eos/eve/screen/screen.c
new file mode 100644
index 0000000..f103b48
--- /dev/null
+++ b/fw/fe310/eos/eve/screen/screen.c
@@ -0,0 +1,104 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+
+#include "screen.h"
+#include "window.h"
+#include "kbdwin.h"
+
+int eve_screen_init(EVEScreen *screen, uint16_t w, uint16_t h) {
+    memset(screen, 0, sizeof(EVEScreen));
+    screen->w = w;
+    screen->h = h;
+    screen->mem_next = EVE_RAM_G;
+    eve_touch_set_handler(eve_screen_handle_touch, screen);
+}
+
+void eve_screen_set_kbd(EVEScreen *screen, EVEKbd *kbd) {
+    screen->kbd = kbd;
+}
+
+EVEKbd *eve_screen_get_kbd(EVEScreen *screen) {
+    return screen->kbd;
+}
+
+void eve_screen_show_kbd(EVEScreen *screen) {
+    EVEWindow *win = screen->win_tail;
+    EVEKbd *kbd = eve_screen_get_kbd(screen);
+
+    if (win) win->g.y = screen->h - kbd->g.h;
+}
+
+void eve_screen_hide_kbd(EVEScreen *screen) {
+    EVEWindow *win = screen->win_tail;
+
+    if (win) win->g.y = screen->h;
+}
+
+void eve_screen_draw(EVEScreen *screen) {
+    EVEWindow *win;
+    uint8_t tagN = 0x80;
+
+    eve_cmd_burst_start();
+	eve_cmd_dl(CMD_DLSTART);
+
+    win = screen->win_head;
+    while (win) {
+        if (eve_window_visible(win)) {
+            int16_t x = win->g.x;
+            int16_t y = win->g.y;
+            uint16_t w = win->g.w;
+            uint16_t h = win->g.h;
+
+            if (x < 0) {
+                w += x;
+                x = 0;
+            }
+            if (y < 0) {
+                h += y;
+                y = 0;
+            }
+            if (x + w > screen->w) w = screen->w - x;
+            if (y + h > screen->h) h = screen->h - y;
+            win->tag = tagN;
+
+            if (tagN != EVE_TAG_NOTAG) {
+                eve_cmd_dl(CLEAR_TAG(tagN));
+                tagN++;
+            }
+            eve_cmd_dl(CLEAR_COLOR_RGBC(win->color_bg));
+            eve_cmd_dl(SCISSOR_XY(x, y));
+            eve_cmd_dl(SCISSOR_SIZE(w, h));
+            eve_cmd_dl(CLEAR(1,1,1));
+            eve_cmd_dl(COLOR_RGBC(win->color_fg));
+            tagN = win->view->draw(win->view, tagN);
+        }
+        win = win->next;
+    }
+
+    eve_cmd_dl(DISPLAY());
+	eve_cmd_dl(CMD_SWAP);
+    eve_cmd_burst_end();
+    eve_cmd_exec(1);
+}
+
+void eve_screen_handle_touch(void *s, uint8_t tag0, int touch_idx) {
+    EVEScreen *screen = s;
+    EVEWindow *win;
+
+    eve_touch_clear_opt();
+
+    if (touch_idx >= 0) {
+        win = screen->win_tail;
+        while (win) {
+            if (eve_window_visible(win)) {
+                int a = win->view->touch(win->view, tag0, touch_idx);
+            }
+            win = win->prev;
+        }
+    }
+
+    eve_screen_draw(screen);
+}
diff --git a/fw/fe310/eos/eve/screen/screen.h b/fw/fe310/eos/eve/screen/screen.h
new file mode 100644
index 0000000..a9745ad
--- /dev/null
+++ b/fw/fe310/eos/eve/screen/screen.h
@@ -0,0 +1,21 @@
+#include <stdint.h>
+
+struct EVEWindow;
+
+typedef struct EVEScreen {
+    uint16_t w;
+    uint16_t h;
+    uint32_t mem_next;
+    struct EVEWindow *win_head;
+    struct EVEWindow *win_tail;
+    EVEKbd *kbd;
+} EVEScreen;
+
+int eve_screen_init(EVEScreen *screen, uint16_t w, uint16_t h);
+void eve_screen_set_kbd(EVEScreen *screen, EVEKbd *kbd);
+EVEKbd *eve_screen_get_kbd(EVEScreen *screen);
+void eve_screen_show_kbd(EVEScreen *screen);
+void eve_screen_hide_kbd(EVEScreen *screen);
+
+void eve_screen_draw(EVEScreen *screen);
+void eve_screen_handle_touch(void *s, uint8_t tag0, int touch_idx);
diff --git a/fw/fe310/eos/eve/screen/window.c b/fw/fe310/eos/eve/screen/window.c
new file mode 100644
index 0000000..e49897f
--- /dev/null
+++ b/fw/fe310/eos/eve/screen/window.c
@@ -0,0 +1,116 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+
+#include "screen.h"
+#include "window.h"
+
+#define MIN(X, Y)           (((X) < (Y)) ? (X) : (Y))
+
+void eve_window_init(EVEWindow *window, EVERect *g, EVEView *view, EVEScreen *screen) {
+    memset(window, 0, sizeof(EVEWindow));
+
+    if (g) window->g = *g;
+    if (view) {
+        window->view = view;
+        window->view->window = window;
+    }
+    window->screen = screen;
+    window->color_fg = 0xffffff;
+}
+
+void eve_window_set_color_bg(EVEWindow *window, uint8_t r, uint8_t g, uint8_t b) {
+    window->color_bg = (r << 16) | (g << 8) | b;
+}
+
+void eve_window_set_color_fg(EVEWindow *window, uint8_t r, uint8_t g, uint8_t b) {
+    window->color_fg = (r << 16) | (g << 8) | b;
+}
+
+int eve_window_visible(EVEWindow *window) {
+    if (window->g.x >= window->screen->w) return 0;
+    if (window->g.y >= window->screen->h) return 0;
+    if ((window->g.x + window->g.w) <= 0) return 0;
+    if ((window->g.y + window->g.h) <= 0) return 0;
+    return 1;
+}
+
+void eve_window_visible_g(EVEWindow *window, EVERect *g) {
+    EVEWindow *w = window->next;
+
+    *g = window->g;
+    while (w) {
+        if (eve_window_visible(w)) {
+            if (w->g.x > g->x) g->w = MIN(g->w, w->g.x - g->x);
+            if (w->g.y > g->y) g->h = MIN(g->h, w->g.y - g->y);
+            if (w->g.x + w->g.w < g->x + g->w) {
+                uint16_t x0 = g->w - MIN(g->w, (g->x + g->w) - (w->g.x + w->g.w));
+                g->x += x0;
+                g->w -= x0;
+            }
+            if (w->g.y + w->g.h < g->y + g->h) {
+                uint16_t y0 = g->h - MIN(g->h, (g->y + g->h) - (w->g.y + w->g.h));
+                g->y += y0;
+                g->h -= y0;
+            }
+        }
+        w = w->next;
+    }
+}
+
+void eve_window_append(EVEWindow *window) {
+    EVEScreen *screen = window->screen;
+
+    window->prev = screen->win_tail;
+    if (screen->win_tail) {
+        screen->win_tail->next = window;
+    } else {
+        screen->win_head = window;
+    }
+    screen->win_tail = window;
+}
+
+void eve_window_insert_above(EVEWindow *window, EVEWindow *win_prev) {
+    EVEScreen *screen = window->screen;
+
+    window->prev = win_prev;
+    window->next = win_prev->next;
+
+    if (window->next) {
+        window->next->prev = window;
+    } else {
+        screen->win_tail = window;
+    }
+    win_prev->next = window;
+}
+
+void eve_window_insert_below(EVEWindow *window, EVEWindow *win_next) {
+    EVEScreen *screen = window->screen;
+
+    window->prev = win_next->prev;
+    window->next = win_next;
+
+    win_next->prev = window;
+    if (window->prev) {
+        window->prev->next = window;
+    } else {
+        screen->win_head = window;
+    }
+}
+
+void eve_window_remove(EVEWindow *window) {
+    EVEScreen *screen = window->screen;
+
+    if (window->prev) {
+        window->prev->next = window->next;
+    } else {
+        screen->win_head = window->next;
+    }
+    if (window->next) {
+        window->next->prev = window->prev;
+    } else {
+        screen->win_tail = window->prev;
+    }
+}
diff --git a/fw/fe310/eos/eve/screen/window.h b/fw/fe310/eos/eve/screen/window.h
new file mode 100644
index 0000000..7f14f18
--- /dev/null
+++ b/fw/fe310/eos/eve/screen/window.h
@@ -0,0 +1,36 @@
+#include <stdint.h>
+
+struct EVEView;
+struct EVEWindow;
+
+typedef int (*eve_view_touch_t) (struct EVEView *, uint8_t, int);
+typedef uint8_t (*eve_view_draw_t) (struct EVEView *, uint8_t);
+
+typedef struct EVEView {
+    eve_view_touch_t touch;
+    eve_view_draw_t draw;
+    struct EVEWindow *window;
+} EVEView;
+
+typedef struct EVEWindow {
+    EVERect g;
+    EVEView *view;
+    EVEScreen *screen;
+    struct EVEWindow *next;
+    struct EVEWindow *prev;
+    uint32_t color_bg;
+    uint32_t color_fg;
+    uint8_t tag;
+} EVEWindow;
+
+void eve_window_init(EVEWindow *window, EVERect *g, EVEView *view, EVEScreen *screen);
+void eve_window_set_color_bg(EVEWindow *window, uint8_t r, uint8_t g, uint8_t b);
+void eve_window_set_color_fg(EVEWindow *window, uint8_t r, uint8_t g, uint8_t b);
+
+int eve_window_visible(EVEWindow *window);
+void eve_window_visible_g(EVEWindow *window, EVERect *g);
+
+void eve_window_append(EVEWindow *window);
+void eve_window_insert_above(EVEWindow *window, EVEWindow *win_prev);
+void eve_window_insert_below(EVEWindow *window, EVEWindow *win_next);
+void eve_window_remove(EVEWindow *window);
diff --git a/fw/fe310/eos/eve/widget/Makefile b/fw/fe310/eos/eve/widget/Makefile
new file mode 100644
index 0000000..160db72
--- /dev/null
+++ b/fw/fe310/eos/eve/widget/Makefile
@@ -0,0 +1,17 @@
+include ../../../common.mk
+
+CFLAGS += -I.. -I../..
+
+obj = clipb.o label.o widget.o pagew.o strw.o textw.o
+
+
+%.o: %.c %.h
+	$(CC) $(CFLAGS) -c $<
+
+%.o: %.S
+	$(CC) $(CFLAGS) -c $<
+
+all: $(obj)
+
+clean:
+	rm -f *.o
\ No newline at end of file
diff --git a/fw/fe310/eos/eve/widget/clipb.c b/fw/fe310/eos/eve/widget/clipb.c
new file mode 100644
index 0000000..04c9a46
--- /dev/null
+++ b/fw/fe310/eos/eve/widget/clipb.c
@@ -0,0 +1,19 @@
+#include <string.h>
+
+#include "eve.h"
+#include "clipb.h"
+
+static uint8_t _clipb[EVE_CLIPB_SIZE_BUF];
+
+int eve_clipb_push(uint8_t *str, uint16_t len) {
+    if (len >= EVE_CLIPB_SIZE_BUF) return EVE_ERR;
+
+    memcpy(_clipb, str, len);
+    _clipb[len] = '\0';
+
+    return EVE_OK;
+}
+
+uint8_t *eve_clipb_get(void) {
+    return _clipb;
+}
\ No newline at end of file
diff --git a/fw/fe310/eos/eve/widget/clipb.h b/fw/fe310/eos/eve/widget/clipb.h
new file mode 100644
index 0000000..2d6fae6
--- /dev/null
+++ b/fw/fe310/eos/eve/widget/clipb.h
@@ -0,0 +1,6 @@
+#include <stdint.h>
+
+#define EVE_CLIPB_SIZE_BUF  256
+
+int eve_clipb_push(uint8_t *str, uint16_t len);
+uint8_t *eve_clipb_get(void);
\ No newline at end of file
diff --git a/fw/fe310/eos/eve/widget/label.c b/fw/fe310/eos/eve/widget/label.c
new file mode 100644
index 0000000..ebea823
--- /dev/null
+++ b/fw/fe310/eos/eve/widget/label.c
@@ -0,0 +1,26 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+#include "unicode.h"
+
+#include "screen/screen.h"
+#include "screen/window.h"
+#include "screen/page.h"
+#include "screen/font.h"
+
+#include "label.h"
+
+void eve_label_init(EVELabel *label, EVERect *g, EVEFont *font, char *title) {
+    memset(label, 0, sizeof(EVELabel));
+    if (g) label->g = *g;
+    label->title = title;
+    label->font = font;
+    if (label->g.w == 0) label->g.w = eve_font_str_w(font, label->title);
+    if (label->g.h == 0) label->g.h = eve_font_h(font);
+}
+
+void eve_label_draw(EVELabel *label) {
+    eve_cmd(CMD_TEXT, "hhhhs", label->g.x, label->g.y, label->font->id, 0, label->title);
+}
\ No newline at end of file
diff --git a/fw/fe310/eos/eve/widget/label.h b/fw/fe310/eos/eve/widget/label.h
new file mode 100644
index 0000000..ec96844
--- /dev/null
+++ b/fw/fe310/eos/eve/widget/label.h
@@ -0,0 +1,10 @@
+#include <stdint.h>
+
+typedef struct EVELabel {
+    EVERect g;
+    char *title;
+    EVEFont *font;
+} EVELabel;
+
+void eve_label_init(EVELabel *label, EVERect *g, EVEFont *font, char *title);
+void eve_label_draw(EVELabel *label);
\ No newline at end of file
diff --git a/fw/fe310/eos/eve/widget/pagew.c b/fw/fe310/eos/eve/widget/pagew.c
new file mode 100644
index 0000000..c64c477
--- /dev/null
+++ b/fw/fe310/eos/eve/widget/pagew.c
@@ -0,0 +1,60 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+#include "unicode.h"
+
+#include "screen/screen.h"
+#include "screen/window.h"
+#include "screen/page.h"
+#include "screen/font.h"
+
+#include "label.h"
+#include "widget.h"
+#include "pagew.h"
+
+void eve_pagew_init(EVEPageWidget *widget, EVERect *g, char *title, EVEFont *font, EVEPage *page) {
+    EVEWidget *_widget = &widget->w;
+
+    memset(widget, 0, sizeof(EVEPageWidget));
+    eve_widget_init(_widget, EVE_WIDGET_TYPE_PAGE, g, eve_pagew_touch, eve_pagew_draw, NULL);
+    widget->title = title;
+    widget->font = font;
+    widget->page = page;
+    if (_widget->g.w == 0) _widget->g.w = eve_font_str_w(font, widget->title);
+    if (_widget->g.h == 0) _widget->g.h = eve_font_h(font);
+}
+
+int eve_pagew_touch(EVEWidget *_widget, EVEPage *page, uint8_t tag0, int touch_idx) {
+    EVEPageWidget *widget = (EVEPageWidget *)_widget;
+    EVETouch *t;
+    uint16_t evt;
+    int ret = 0;
+
+    if (touch_idx > 0) return 0;
+
+    t = eve_touch_evt(tag0, touch_idx, widget->tag, 1, &evt);
+    if (t && evt) {
+        if (evt & EVE_TOUCH_ETYPE_TRACK_MASK) {
+            if (page && page->handle_evt) page->handle_evt(page, _widget, t, evt, tag0, touch_idx);
+        } else if (evt & EVE_TOUCH_ETYPE_TAG_UP) {
+            widget->page->open(widget->page, page);
+        }
+        ret = 1;
+    }
+    return ret;
+}
+
+uint8_t eve_pagew_draw(EVEWidget *_widget, EVEPage *page, uint8_t tag0) {
+    EVEPageWidget *widget = (EVEPageWidget *)_widget;
+
+    widget->tag = tag0;
+    if (tag0 != EVE_TAG_NOTAG) {
+        eve_cmd_dl(TAG(tag0));
+        tag0++;
+    }
+    eve_cmd(CMD_TEXT, "hhhhs", _widget->g.x, _widget->g.y, widget->font->id, 0, widget->title);
+
+    return tag0;
+}
diff --git a/fw/fe310/eos/eve/widget/pagew.h b/fw/fe310/eos/eve/widget/pagew.h
new file mode 100644
index 0000000..1f9ae18
--- /dev/null
+++ b/fw/fe310/eos/eve/widget/pagew.h
@@ -0,0 +1,13 @@
+#include <stdint.h>
+
+typedef struct EVEPageWidget {
+    EVEWidget w;
+    char *title;
+    EVEFont *font;
+    EVEPage *page;
+    uint8_t tag;
+} EVEPageWidget;
+
+void eve_pagew_init(EVEPageWidget *widget, EVERect *g, char *title, EVEFont *font, EVEPage *page);
+int eve_pagew_touch(EVEWidget *_widget, EVEPage *page, uint8_t tag0, int touch_idx);
+uint8_t eve_pagew_draw(EVEWidget *_widget, EVEPage *page, uint8_t tag0);
diff --git a/fw/fe310/eos/eve/widget/strw.c b/fw/fe310/eos/eve/widget/strw.c
new file mode 100644
index 0000000..2a80a28
--- /dev/null
+++ b/fw/fe310/eos/eve/widget/strw.c
@@ -0,0 +1,418 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+#include "unicode.h"
+
+#include "screen/screen.h"
+#include "screen/window.h"
+#include "screen/page.h"
+#include "screen/font.h"
+
+#include "clipb.h"
+#include "label.h"
+#include "widget.h"
+#include "strw.h"
+
+#define CH_BS                   0x08
+#define CH_DEL                  0x7f
+#define CH_EOF                  0x1a
+
+#define CH_CTRLX                0x18
+#define CH_CTRLC                0x03
+#define CH_CTRLV                0x16
+
+#define STRW_TMODE_CURSOR       1
+#define STRW_TMODE_SCROLL_X     2
+#define STRW_TMODE_SCROLL_Y     3
+
+#define CHAR_VALID_INPUT(c)     ((c >= 0x20) && (c < 0x7f))
+
+void eve_strw_init(EVEStrWidget *widget, EVERect *g, EVEFont *font, utf8_t *str, uint16_t str_size) {
+    int rv, str_len;
+    EVEWidget *_widget = &widget->w;
+
+    memset(widget, 0, sizeof(EVEStrWidget));
+    eve_widget_init(_widget, EVE_WIDGET_TYPE_STR, g, eve_strw_touch, eve_strw_draw, eve_strw_putc);
+    widget->font = font;
+    widget->str = str;
+    widget->str_size = str_size;
+    rv = utf8_verify(str, str_size, &str_len);
+    if (rv != UTF_OK) {
+        if (str_len >= str_size) str_len = 0;
+        widget->str[str_len] = '\0';
+    }
+    widget->str_len = str_len;
+    widget->str_g.w = eve_font_str_w(font, str);
+    if (_widget->g.h == 0) _widget->g.h = eve_font_h(font);
+}
+
+static void set_focus(EVEStrWidget *widget, EVEPage *page) {
+    EVERect focus;
+    EVEWidget *_widget = &widget->w;
+
+    focus.x = _widget->g.x;
+    focus.y = _widget->g.y;
+    focus.w = _widget->g.w;
+    focus.h = 2 * widget->font->h;
+    eve_page_set_focus(page, _widget, &focus);
+}
+
+static EVEStrCursor *cursor_prox(EVEStrWidget *widget, EVEStrCursor *cursor, EVEPage *page, EVETouch *t, short *dx) {
+    EVEWidget *_widget = &widget->w;
+    int x = eve_page_x(page, t->x0) - _widget->g.x + widget->str_g.x;
+    int _dx;
+
+    *dx = cursor->x - x;
+    _dx = *dx < 0 ? -(*dx) : *dx;
+
+    if (_dx <= widget->font->w) return cursor;
+    return NULL;
+}
+
+int eve_strw_touch(EVEWidget *_widget, EVEPage *page, uint8_t tag0, int touch_idx) {
+    EVEStrWidget *widget = (EVEStrWidget *)_widget;
+    EVETouch *t;
+    uint16_t evt;
+
+    if (touch_idx > 0) return 0;
+
+    t = eve_touch_evt(tag0, touch_idx, widget->tag, 1, &evt);
+    if (t && evt) {
+        EVEStrCursor *t_cursor = NULL;
+        short dx;
+
+        if (evt & (EVE_TOUCH_ETYPE_LPRESS | EVE_TOUCH_ETYPE_TRACK_START)) {
+            if (widget->cursor2.on) {
+                t_cursor = cursor_prox(widget, &widget->cursor2, page, t, &dx);
+            }
+            if ((t_cursor == NULL) && widget->cursor1.on) {
+                t_cursor = cursor_prox(widget, &widget->cursor1, page, t, &dx);
+            }
+            if (evt & EVE_TOUCH_ETYPE_TRACK_START) {
+                widget->track.cursor = t_cursor;
+                if (t_cursor) {
+                    widget->track.mode = STRW_TMODE_CURSOR;
+                    widget->track.dx = dx;
+                } else if (t->eevt & EVE_TOUCH_EETYPE_TRACK_X) {
+                    widget->track.mode = STRW_TMODE_SCROLL_X;
+                } else if (t->eevt & EVE_TOUCH_EETYPE_TRACK_Y) {
+                    widget->track.mode = STRW_TMODE_SCROLL_Y;
+                }
+            }
+        }
+
+        switch (widget->track.mode) {
+            case STRW_TMODE_SCROLL_Y:
+                if (page->handle_evt) page->handle_evt(page, _widget, t, evt, tag0, touch_idx);
+                break;
+
+            case STRW_TMODE_SCROLL_X:
+                if (evt & EVE_TOUCH_ETYPE_TRACK_START) {
+                    widget->str_g.x0 = widget->str_g.x;
+                }
+                if (evt & EVE_TOUCH_ETYPE_TRACK) {
+                    int x = widget->str_g.x0 + t->x0 - t->x;
+                    int w1 = widget->w.g.w - widget->font->w;
+
+                    if (x > widget->str_g.w - w1) x = widget->str_g.w - w1;
+                    if (x < 0) x = 0;
+                    widget->str_g.x = x;
+                }
+                break;
+
+            case STRW_TMODE_CURSOR:
+                if (evt & EVE_TOUCH_ETYPE_TRACK) eve_strw_cursor_set(widget, widget->track.cursor, eve_page_x(page, t->x) + widget->track.dx);
+                break;
+
+            default:
+                if (evt & EVE_TOUCH_ETYPE_LPRESS) {
+                    if (widget->cursor2.on) {
+                        // copy
+                    } else if (widget->cursor1.on) {
+                        if (t_cursor) {
+                            // paste
+                        } else {
+                            eve_strw_cursor_set(widget, &widget->cursor2, eve_page_x(page, t->x));
+                        }
+                    } else {
+                        // select
+                    }
+                }
+                if ((evt & EVE_TOUCH_ETYPE_POINT_UP) && !(t->eevt & EVE_TOUCH_EETYPE_LPRESS)) {
+                    eve_strw_cursor_set(widget, &widget->cursor1, eve_page_x(page, t->x0));
+                    if (widget->cursor2.on) eve_strw_cursor_clear(widget, &widget->cursor2);
+                    set_focus(widget, page);
+                }
+                break;
+        }
+
+        if (evt & EVE_TOUCH_ETYPE_TRACK_STOP) {
+            widget->track.mode = 0;
+            widget->track.cursor = NULL;
+            widget->track.dx = 0;
+        }
+
+        return 1;
+    }
+
+    return 0;
+}
+
+static void _draw_str(EVEStrWidget *widget, EVEWindow *window, uint16_t ch, uint16_t len, uint16_t x1, uint16_t x2, char s) {
+    int16_t x;
+    EVEWidget *_widget = &widget->w;
+
+    x = _widget->g.x - widget->str_g.x;
+    if (x1 != x2) {
+        eve_cmd_dl(BEGIN(EVE_RECTS));
+        if (!s) eve_cmd_dl(COLOR_MASK(0 ,0 ,0 ,0));
+        eve_cmd_dl(VERTEX2F(x + x1, _widget->g.y));
+        eve_cmd_dl(VERTEX2F(x + x2, _widget->g.y + widget->font->h));
+        if (!s) eve_cmd_dl(COLOR_MASK(1 ,1 ,1 ,1));
+        eve_cmd_dl(END());
+        if (len) {
+            if (s) eve_cmd_dl(COLOR_RGBC(window->color_bg));
+            eve_cmd(CMD_TEXT, "hhhhpb", x + x1, _widget->g.y, widget->font->id, 0, widget->str + ch, len, 0);
+            if (s) eve_cmd_dl(COLOR_RGBC(window->color_fg));
+        }
+    }
+}
+
+static void _draw_cursor(EVEStrWidget *widget, EVEStrCursor *cursor) {
+    uint16_t x, y;
+    EVEWidget *_widget = &widget->w;
+
+    x = _widget->g.x - widget->str_g.x + cursor->x;
+    y = _widget->g.y;
+    eve_cmd_dl(BEGIN(EVE_LINES));
+    eve_cmd_dl(VERTEX2F(x, y));
+    eve_cmd_dl(VERTEX2F(x, y + widget->font->h));
+    eve_cmd_dl(END());
+}
+
+uint8_t eve_strw_draw(EVEWidget *_widget, EVEPage *page, uint8_t tag0) {
+    EVEStrWidget *widget = (EVEStrWidget *)_widget;
+    char cut = widget->str_g.x || (widget->str_g.w > _widget->g.w);
+
+    widget->tag = tag0;
+    if (tag0 != EVE_TAG_NOTAG) {
+        eve_cmd_dl(TAG(tag0));
+        eve_touch_set_opt(tag0, EVE_TOUCH_OPT_LPRESS);
+        tag0++;
+    }
+
+    if (cut) {
+        EVEWindow *window = page->v.window;
+        EVEScreen *screen = window->screen;
+        int16_t x = eve_page_scr_x(page, _widget->g.x);
+        int16_t y = eve_page_scr_y(page, _widget->g.y);
+        uint16_t w = _widget->g.w;
+        uint16_t h = _widget->g.h;
+        int16_t win_x1 = window->g.x;
+        int16_t win_y1 = window->g.y;
+        int16_t win_x2 = win_x1 + window->g.w;
+        int16_t win_y2 = win_y1 + window->g.h;
+
+        if (win_x1 < 0) win_x1 = 0;
+        if (win_y1 < 0) win_y1 = 0;
+        if (win_x2 > screen->w) win_x2 = screen->w;
+        if (win_y2 > screen->h) win_y2 = screen->h;
+        if (x < win_x1) {
+            w += x - win_x1;
+            x = win_x1;
+        }
+        if (y < win_y1) {
+            h += y - win_y1;
+            y = win_y1;
+        }
+        if (x + w > win_x2) w = win_x2 - x;
+        if (y + h > win_y2) h = win_y2 - y;
+
+        eve_cmd_dl(SAVE_CONTEXT());
+        eve_cmd_dl(SCISSOR_XY(x, y));
+        eve_cmd_dl(SCISSOR_SIZE(w, h));
+    }
+
+    if (widget->cursor2.on) {
+        EVEStrCursor *c1, *c2;
+        int l1, l2, l3;
+
+        if (widget->cursor1.ch <= widget->cursor2.ch) {
+            c1 = &widget->cursor1;
+            c2 = &widget->cursor2;
+        } else {
+            c1 = &widget->cursor2;
+            c2 = &widget->cursor1;
+        }
+
+        l1 = c1->ch;
+        l2 = c2->ch - c1->ch;
+        l3 = widget->str_len - c2->ch;
+        _draw_str(widget, page->v.window, 0, l1, 0, c1->x, 0);
+        _draw_str(widget, page->v.window, c1->ch, l2, c1->x, c2->x, 1);
+        _draw_str(widget, page->v.window, c2->ch, l3, c2->x, widget->str_g.x + _widget->g.w, 0);
+    } else {
+        if (widget->cursor1.on) _draw_cursor(widget, &widget->cursor1);
+        _draw_str(widget, page->v.window, 0, widget->str_len, 0, widget->str_g.x + _widget->g.w, 0);
+    }
+
+    if (cut) {
+        eve_cmd_dl(RESTORE_CONTEXT());
+    }
+
+    return tag0;
+}
+
+void eve_strw_putc(void *_page, int c) {
+    EVEPage *page = _page;
+    EVEStrWidget *widget = (EVEStrWidget *)eve_page_get_focus(page);
+    EVEStrCursor *cursor1 = &widget->cursor1;
+    EVEStrCursor *cursor2 = &widget->cursor2;
+    utf8_t *str;
+    utf8_t *clipb = NULL;
+    int w0 = widget->font->w;
+    int w1 = widget->w.g.w - widget->font->w;
+    int ins_c = 0, del_c = 0;
+    int ins_w = 0, del_w = 0;
+
+
+    if (c == CH_EOF) {
+        if (cursor1->on) eve_strw_cursor_clear(widget, cursor1);
+        if (cursor2->on) eve_strw_cursor_clear(widget, cursor2);
+        return;
+    }
+
+    if (!cursor1->on) return;
+
+    if (!cursor2->on && ((c == CH_BS) || (c == CH_DEL))) {
+        utf32_t uc;
+
+        str = widget->str + cursor1->ch;
+        switch (c) {
+            case CH_BS:
+                if (cursor1->ch > 0) {
+                    del_c = -utf8_seek(str, -1, &uc);
+                    del_w = eve_font_ch_w(widget->font, uc);
+                    memmove(str - del_c, str, widget->str_len - cursor1->ch + 1);
+                    widget->str_len -= del_c;
+                    widget->str_g.w -= del_w;
+                    cursor1->ch -= del_c;
+                    cursor1->x -= del_w;
+                }
+                break;
+
+            case CH_DEL:
+                if (cursor1->ch < widget->str_len) {
+                    del_c = utf8_dec(str, &uc);
+                    del_w = eve_font_ch_w(widget->font, uc);
+                    memmove(str, str + del_c, widget->str_len - cursor1->ch - del_c + 1);
+                    widget->str_len -= del_c;
+                    widget->str_g.w -= del_w;
+                }
+                break;
+        }
+        if (widget->str_g.w - widget->str_g.x < w1) {
+            widget->str_g.x -= del_w;
+            if (widget->str_g.x < 0) widget->str_g.x = 0;
+        }
+    } else {
+        EVEStrCursor *c1 = cursor1;
+        EVEStrCursor *c2 = cursor1;
+        utf8_t utf8_buf[4];
+
+        if (cursor2->on) {
+            if (cursor1->ch <= cursor2->ch) {
+                c2 = cursor2;
+            } else {
+                c1 = cursor2;
+            }
+            del_c = c2->ch - c1->ch;
+            del_w = eve_font_buf_w(widget->font, str, del_c);
+            if ((c == CH_CTRLX) || (c == CH_CTRLC)) {
+                eve_clipb_push(str, del_c);
+                if (c == CH_CTRLC) return;
+            }
+        }
+
+        str = widget->str + c1->ch;
+        if (CHAR_VALID_INPUT(c)) {
+            ins_c = utf8_enc(c, utf8_buf);
+            ins_w = eve_font_ch_w(widget->font, c);
+        } else if (c == CH_CTRLV) {
+            int rv, clipb_len = 0;
+
+            clipb = eve_clipb_get();
+            if (clipb) {
+                rv = utf8_verify(clipb, EVE_CLIPB_SIZE_BUF, &clipb_len);
+                if (rv != UTF_OK) {
+                    clipb = NULL;
+                    clipb_len = 0;
+                }
+            }
+            ins_c = clipb_len;
+            ins_w = eve_font_str_w(widget->font, clipb);
+        }
+        if (widget->str_len + ins_c >= widget->str_size + del_c) {
+            ins_c = 0;
+            ins_w = 0;
+        }
+        if (ins_c != del_c) memmove(str + ins_c, str + del_c, widget->str_len - c2->ch + 1);
+        if (ins_c) {
+            if (c == CH_CTRLV) {
+                memcpy(str, clipb, ins_c);
+            } else if (ins_c > 1) {
+                memcpy(str, utf8_buf, ins_c);
+            } else {
+                *str = utf8_buf[0];
+            }
+            c1->ch += ins_c;
+            c1->x += ins_w;
+        }
+        widget->str_len += ins_c - del_c;
+        widget->str_g.w += ins_w - del_w;
+        if (c1 == cursor2) widget->cursor1 = widget->cursor2;
+        if (cursor2->on) eve_strw_cursor_clear(widget, cursor2);
+    }
+
+    if (cursor1->x - widget->str_g.x < w0) widget->str_g.x = cursor1->x > w0 ? cursor1->x - w0 : 0;
+    if (cursor1->x - widget->str_g.x > w1) widget->str_g.x = cursor1->x - w1;
+}
+
+void eve_strw_cursor_set(EVEStrWidget *widget, EVEStrCursor *cursor, int16_t x) {
+    int i;
+    int16_t _x, _d;
+    utf32_t ch;
+    uint8_t ch_w;
+    uint8_t ch_l;
+    EVEWidget *_widget = &widget->w;
+
+    x = x - _widget->g.x + widget->str_g.x;
+
+    _x = 0;
+    _d = x;
+    i = 0;
+    while (i < widget->str_len) {
+        ch_l = utf8_dec(widget->str + i, &ch);
+        ch_w = eve_font_ch_w(widget->font, ch);
+        _x += ch_w;
+        i += ch_l;
+        if (_x >= x) {
+            if (_x - x > _d) {
+                _x -= ch_w;
+                i -= ch_l;
+            }
+            break;
+        } else {
+            _d = x - _x;
+        }
+    }
+    cursor->x = _x;
+    cursor->ch = i;
+    cursor->on = 1;
+}
+
+void eve_strw_cursor_clear(EVEStrWidget *widget, EVEStrCursor *cursor) {
+    cursor->on = 0;
+}
diff --git a/fw/fe310/eos/eve/widget/strw.h b/fw/fe310/eos/eve/widget/strw.h
new file mode 100644
index 0000000..72fc6aa
--- /dev/null
+++ b/fw/fe310/eos/eve/widget/strw.h
@@ -0,0 +1,35 @@
+#include <stdint.h>
+
+typedef struct EVEStrCursor {
+    char on;
+    uint16_t x;
+    uint16_t ch;
+} EVEStrCursor;
+
+typedef struct EVEStrWidget {
+    EVEWidget w;
+    EVEFont *font;
+    utf8_t *str;
+    uint16_t str_size;
+    uint16_t str_len;
+    struct {
+        int16_t x;
+        int16_t x0;
+        uint16_t w;
+    } str_g;
+    EVEStrCursor cursor1;
+    EVEStrCursor cursor2;
+    uint8_t tag;
+    struct {
+        EVEStrCursor *cursor;
+        short dx;
+        char mode;
+    } track;
+} EVEStrWidget;
+
+void eve_strw_init(EVEStrWidget *widget, EVERect *g, EVEFont *font, utf8_t *str, uint16_t str_size);
+int eve_strw_touch(EVEWidget *_widget, EVEPage *page, uint8_t tag0, int touch_idx);
+uint8_t eve_strw_draw(EVEWidget *_widget, EVEPage *page, uint8_t tag0);
+void eve_strw_putc(void *_page, int c);
+void eve_strw_cursor_set(EVEStrWidget *widget, EVEStrCursor *cursor, int16_t x);
+void eve_strw_cursor_clear(EVEStrWidget *widget, EVEStrCursor *cursor);
\ No newline at end of file
diff --git a/fw/fe310/eos/eve/widget/textw.c b/fw/fe310/eos/eve/widget/textw.c
new file mode 100644
index 0000000..bf075cf
--- /dev/null
+++ b/fw/fe310/eos/eve/widget/textw.c
@@ -0,0 +1,535 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+#include "unicode.h"
+
+#include "screen/screen.h"
+#include "screen/window.h"
+#include "screen/page.h"
+#include "screen/font.h"
+
+#include "clipb.h"
+#include "label.h"
+#include "widget.h"
+#include "textw.h"
+
+#define CH_BS                   0x08
+#define CH_DEL                  0x7f
+#define CH_EOF                  0x1a
+
+#define CH_CTRLX                0x18
+#define CH_CTRLC                0x03
+#define CH_CTRLV                0x16
+
+#define TEXTW_TMODE_CURSOR      1
+#define TEXTW_TMODE_SCROLL      2
+
+#define LINE_LEN(w,l)           ((l) ? (w->line[l] ? w->line[l] - w->line[(l) - 1] - 1 : 0) : w->line[l])
+#define LINE_START(w,l)         ((l) ? w->line[(l) - 1] + 1 : 0)
+#define LINE_END(w,l)           (w->line[l])
+#define LINE_EMPTY              0xffff
+
+#define CHAR_VALID_INPUT(c)     (((c >= 0x20) && (c < 0x7f)) || (c == '\n'))
+
+#define DIVC(x,y)               ((x) / (y) + ((x) % (y) != 0))
+
+void eve_textw_init(EVETextWidget *widget, EVERect *g, EVEFont *font, utf8_t *text, uint16_t text_size, uint16_t *line, uint16_t line_size) {
+    int rv, text_len;
+    EVEWidget *_widget = &widget->w;
+
+    memset(widget, 0, sizeof(EVETextWidget));
+    eve_widget_init(_widget, EVE_WIDGET_TYPE_TEXT, g, eve_textw_touch, eve_textw_draw, eve_textw_putc);
+    widget->font = font;
+    widget->text = text;
+    widget->text_size = text_size;
+    rv = utf8_verify(text, text_size, &text_len);
+    if (rv != UTF_OK) {
+        if (text_len >= text_size) text_len = 0;
+        widget->text[text_len] = '\0';
+    }
+    widget->text_len = text_len;
+    widget->line = line;
+    widget->line_size = line_size;
+    memset(widget->line, 0xff, line_size * sizeof(uint16_t));
+    eve_textw_update(widget, NULL, 0);
+}
+
+static void set_focus(EVETextWidget *widget, EVETextCursor *cursor, EVEPage *page) {
+    EVERect focus;
+    EVEWidget *_widget = &widget->w;
+
+    focus.x = _widget->g.x;
+    focus.y = _widget->g.y + cursor->line * widget->font->h;
+    focus.w = _widget->g.w;
+    focus.h = 2 * widget->font->h;
+    eve_page_set_focus(page, _widget, &focus);
+}
+
+static EVETextCursor *cursor_prox(EVETextWidget *widget, EVETextCursor *cursor, EVEPage *page, EVETouch *t, short *dx, short *dl) {
+    EVEWidget *_widget = &widget->w;
+    int x = eve_page_x(page, t->x0) - _widget->g.x;
+    int l = (int)t->tag0 - widget->tag0 + widget->line0;
+    int _dx, _dl;
+
+    *dx = cursor->x - x;
+    *dl = cursor->line - l;
+
+    _dx = *dx < 0 ? -(*dx) : *dx;
+    _dl = *dl < 0 ? -(*dl) : *dl;
+
+    if ((_dx <= widget->font->h) && (_dl <= 1)) return cursor;
+    return NULL;
+}
+
+int eve_textw_touch(EVEWidget *_widget, EVEPage *page, uint8_t tag0, int touch_idx) {
+    EVETextWidget *widget = (EVETextWidget *)_widget;
+    EVETouch *t;
+    uint16_t evt;
+    int ret = 0;
+
+    if (touch_idx > 0) return 0;
+
+    t = eve_touch_evt(tag0, touch_idx, widget->tag0, widget->tagN - widget->tag0, &evt);
+    if (t && evt) {
+        EVETextCursor *t_cursor = NULL;
+        short dx, dl;
+
+        if (evt & (EVE_TOUCH_ETYPE_LPRESS | EVE_TOUCH_ETYPE_TRACK_START)) {
+            if (widget->cursor2.on) {
+                t_cursor = cursor_prox(widget, &widget->cursor2, page, t, &dx, &dl);
+            }
+            if ((t_cursor == NULL) && widget->cursor1.on) {
+                t_cursor = cursor_prox(widget, &widget->cursor1, page, t, &dx, &dl);
+            }
+            if (evt & EVE_TOUCH_ETYPE_TRACK_START) {
+                widget->track.cursor = t_cursor;
+                if (t_cursor) {
+                    widget->track.mode = TEXTW_TMODE_CURSOR;
+                    widget->track.dx = dx;
+                    widget->track.dl = dl;
+                } else {
+                    widget->track.mode = TEXTW_TMODE_SCROLL;
+                }
+            }
+        }
+
+        switch (widget->track.mode) {
+            case TEXTW_TMODE_SCROLL:
+                if (page->handle_evt) page->handle_evt(page, _widget, t, evt, tag0, touch_idx);
+                break;
+
+            case TEXTW_TMODE_CURSOR:
+                if (evt & EVE_TOUCH_ETYPE_TRACK) eve_textw_cursor_set(widget, widget->track.cursor, t->tag + widget->track.dl, eve_page_x(page, t->x) + widget->track.dx);
+                break;
+
+            default:
+                if (evt & EVE_TOUCH_ETYPE_LPRESS) {
+                    if (widget->cursor2.on) {
+                        // copy
+                    } else if (widget->cursor1.on) {
+                        if (t_cursor && (dl == 0)) {
+                            // paste
+                        } else {
+                            eve_textw_cursor_set(widget, &widget->cursor2, t->tag, eve_page_x(page, t->x));
+                        }
+                    } else {
+                        // select
+                    }
+                }
+                if ((evt & EVE_TOUCH_ETYPE_POINT_UP) && !(t->eevt & EVE_TOUCH_EETYPE_LPRESS)) {
+                    eve_textw_cursor_set(widget, &widget->cursor1, t->tag_up, eve_page_x(page, t->x0));
+                    if (widget->cursor2.on) eve_textw_cursor_clear(widget, &widget->cursor2);
+                    set_focus(widget, &widget->cursor1, page);
+                }
+                break;
+        }
+
+        if (evt & EVE_TOUCH_ETYPE_TRACK_STOP) {
+            widget->track.mode = 0;
+            widget->track.cursor = NULL;
+            widget->track.dx = 0;
+            widget->track.dl = 0;
+        }
+
+        ret = 1;
+    }
+
+    return ret;
+}
+
+static void _draw_line(EVETextWidget *widget, EVEWindow *window, uint16_t l, uint16_t ch, uint16_t len, uint16_t x1, uint16_t x2, char s) {
+    EVEWidget *_widget = &widget->w;
+
+    if (x1 != x2) {
+        eve_cmd_dl(BEGIN(EVE_RECTS));
+        if (!s) eve_cmd_dl(COLOR_MASK(0 ,0 ,0 ,0));
+        eve_cmd_dl(VERTEX2F(_widget->g.x + x1, _widget->g.y + l * widget->font->h));
+        eve_cmd_dl(VERTEX2F(_widget->g.x + x2, _widget->g.y + (l + 1) * widget->font->h));
+        if (!s) eve_cmd_dl(COLOR_MASK(1 ,1 ,1 ,1));
+        eve_cmd_dl(END());
+        if (len) {
+            if (s) eve_cmd_dl(COLOR_RGBC(window->color_bg));
+            eve_cmd(CMD_TEXT, "hhhhpb", _widget->g.x + x1, _widget->g.y + l * widget->font->h, widget->font->id, 0, widget->text + ch, len, 0);
+            if (s) eve_cmd_dl(COLOR_RGBC(window->color_fg));
+        }
+    }
+}
+
+static void _draw_cursor(EVETextWidget *widget, EVETextCursor *cursor) {
+    uint16_t x, y;
+    EVEWidget *_widget = &widget->w;
+
+    x = _widget->g.x + cursor->x;
+    y = _widget->g.y + cursor->line * widget->font->h;
+    eve_cmd_dl(BEGIN(EVE_LINES));
+    eve_cmd_dl(VERTEX2F(x, y));
+    eve_cmd_dl(VERTEX2F(x, y + widget->font->h));
+    eve_cmd_dl(END());
+}
+
+uint8_t eve_textw_draw(EVEWidget *_widget, EVEPage *page, uint8_t tag0) {
+    EVETextWidget *widget = (EVETextWidget *)_widget;
+    int line0, lineN;
+    int _line0, _lineN;
+    char lineNvisible;
+
+    _line0 = line0 = ((int)page->win_y - _widget->g.y) / widget->font->h;
+    _lineN = lineN = DIVC(((int)page->win_y - _widget->g.y + page->v.window->g.h), widget->font->h);
+    if (line0 < 0) line0 = 0;
+    if (lineN < 0) lineN = 0;
+    if (line0 > widget->line_len) line0 = widget->line_len;
+    if (lineN > widget->line_len) lineN = widget->line_len;
+    lineNvisible = (lineN >= _line0) && (lineN < _lineN);
+
+    if (lineNvisible || (line0 < lineN)) {
+        int i;
+        char s = 0;
+        EVETextCursor *c1, *c2;
+
+        widget->line0 = line0;
+        widget->tag0 = tag0;
+        widget->tagN = tag0;
+
+        if (widget->cursor2.on) {
+            if (widget->cursor1.ch <= widget->cursor2.ch) {
+                c1 = &widget->cursor1;
+                c2 = &widget->cursor2;
+            } else {
+                c1 = &widget->cursor2;
+                c2 = &widget->cursor1;
+            }
+        } else {
+            c1 = NULL;
+            c2 = NULL;
+        }
+
+        for (i=line0; i<lineN; i++) {
+            if (widget->tagN != EVE_TAG_NOTAG) {
+                eve_cmd_dl(TAG(widget->tagN));
+                eve_touch_set_opt(widget->tagN, EVE_TOUCH_OPT_LPRESS);
+                widget->tagN++;
+            }
+            if (!s && c1 && (c1->line == i)) {
+                int l1, l2, l3;
+
+                l1 = c1->ch - LINE_START(widget, i);
+                if (c2->line == i) {
+                    l2 = c2->ch - c1->ch;
+                    l3 = LINE_START(widget, i) + LINE_LEN(widget, i) - c2->ch;
+                } else {
+                    l2 = LINE_START(widget, i) + LINE_LEN(widget, i) - c1->ch;
+                    l3 = 0;
+                    s = 1;
+                }
+                _draw_line(widget, page->v.window, i, LINE_START(widget, i), l1, 0, c1->x, 0);
+                _draw_line(widget, page->v.window, i, c1->ch, l2, c1->x, s ? _widget->g.w : c2->x, 1);
+                if (!s) {
+                    _draw_line(widget, page->v.window, i, c2->ch, l3, c2->x, _widget->g.w, 0);
+                    c1 = NULL;
+                    c2 = NULL;
+                }
+            } else if (s && (c2->line == i)) {
+                int l1 = c2->ch - LINE_START(widget, i);
+                int l2 = LINE_START(widget, i) + LINE_LEN(widget, i) - c2->ch;
+
+                _draw_line(widget, page->v.window, i, LINE_START(widget, i), l1, 0, c2->x, 1);
+                _draw_line(widget, page->v.window, i, c2->ch, l2, c2->x, _widget->g.w, 0);
+                c1 = NULL;
+                c2 = NULL;
+                s = 0;
+            } else {
+                if (widget->cursor1.on && (widget->cursor1.line == i)) _draw_cursor(widget, &widget->cursor1);
+                _draw_line(widget, page->v.window, i, LINE_START(widget, i), LINE_LEN(widget, i), 0, _widget->g.w, s);
+            }
+        }
+        if (lineNvisible) {
+            if (widget->tagN != EVE_TAG_NOTAG) {
+                eve_cmd_dl(TAG(widget->tagN));
+                eve_touch_set_opt(widget->tagN, EVE_TOUCH_OPT_LPRESS);
+                widget->tagN++;
+            }
+            _draw_line(widget, page->v.window, lineN, 0, 0, 0, _widget->g.w, 0);
+        }
+
+        return widget->tagN;
+    } else {
+        widget->line0 = 0;
+        widget->tag0 = EVE_TAG_NOTAG;
+        widget->tagN = EVE_TAG_NOTAG;
+
+        return tag0;
+    }
+}
+
+void eve_textw_putc(void *_page, int c) {
+    EVEPage *page = _page;
+    EVETextWidget *widget = (EVETextWidget *)eve_page_get_focus(page);
+    EVETextCursor *cursor1 = &widget->cursor1;
+    EVETextCursor *cursor2 = &widget->cursor2;
+    utf8_t *text;
+    utf8_t *clipb = NULL;
+    int i, r;
+    int ins_c = 0, del_c = 0;
+    int ch_w = 0;
+
+    if (c == CH_EOF) {
+        if (cursor1->on) eve_textw_cursor_clear(widget, cursor1);
+        if (cursor2->on) eve_textw_cursor_clear(widget, cursor2);
+        return;
+    }
+
+    if (!cursor1->on) return;
+
+    if (!cursor2->on && ((c == CH_BS) || (c == CH_DEL))) {
+        utf32_t uc;
+
+        text = widget->text + cursor1->ch;
+        switch (c) {
+            case CH_BS:
+                if (cursor1->ch > 0) {
+                    del_c = -utf8_seek(text, -1, &uc);
+                    ch_w = eve_font_ch_w(widget->font, uc);
+                    memmove(text - del_c, text, widget->text_len - cursor1->ch + 1);
+                    cursor1->ch -= del_c;
+                }
+                break;
+
+            case CH_DEL:
+                if (cursor1->ch < widget->text_len) {
+                    del_c = utf8_dec(text, &uc);
+                    ch_w = eve_font_ch_w(widget->font, uc);
+                    memmove(text, text + del_c, widget->text_len - cursor1->ch - del_c + 1);
+                }
+                break;
+        }
+    } else {
+        EVETextCursor *c1 = cursor1;
+        EVETextCursor *c2 = cursor1;
+        utf8_t utf8_buf[4];
+
+        if (cursor2->on) {
+            if (cursor1->ch <= cursor2->ch) {
+                c2 = cursor2;
+            } else {
+                c1 = cursor2;
+            }
+            del_c = c2->ch - c1->ch;
+            if ((c == CH_CTRLX) || (c == CH_CTRLC)) {
+                eve_clipb_push(text, del_c);
+                if (c == CH_CTRLC) return;
+            }
+        }
+
+        text = widget->text + c1->ch;
+        if (CHAR_VALID_INPUT(c)) {
+            ins_c = utf8_enc(c, utf8_buf);
+            ch_w = eve_font_ch_w(widget->font, c);
+        } else if (c == CH_CTRLV) {
+            int rv, clipb_len = 0;
+
+            clipb = eve_clipb_get();
+            if (clipb) {
+                rv = utf8_verify(clipb, EVE_CLIPB_SIZE_BUF, &clipb_len);
+                if (rv != UTF_OK) {
+                    clipb = NULL;
+                    clipb_len = 0;
+                }
+            }
+            ins_c = clipb_len;
+            ch_w = eve_font_str_w(widget->font, clipb);
+        }
+        if (widget->text_len + ins_c >= widget->text_size + del_c) {
+            ins_c = 0;
+            ch_w = 0;
+        }
+        if (ins_c != del_c) memmove(text + ins_c, text + del_c, widget->text_len - c2->ch + 1);
+        if (ins_c) {
+            if (c == CH_CTRLV) {
+                memcpy(text, clipb, ins_c);
+            } else if (ins_c > 1) {
+                memcpy(text, utf8_buf, ins_c);
+            } else {
+                *text = utf8_buf[0];
+            }
+            c1->ch += ins_c;
+        }
+        if (c1 == cursor2) widget->cursor1 = widget->cursor2;
+        if (cursor2->on) eve_textw_cursor_clear(widget, cursor2);
+    }
+
+    if ((ins_c == 0) && (del_c == 0)) return;
+
+    widget->text_len += ins_c - del_c;
+    for (i=cursor1->line; i<widget->line_len; i++) {
+        widget->line[i] += ins_c - del_c;
+    }
+
+    r = cursor1->line;
+    if (cursor1->line) r = eve_textw_update(widget, page, cursor1->line - 1);
+    if ((cursor1->line == 0) || (r == cursor1->line - 1)) r = eve_textw_update(widget, page, cursor1->line);
+
+    if (cursor1->line && (cursor1->ch < LINE_START(widget, cursor1->line))) {
+        cursor1->line--;
+        eve_textw_cursor_update(widget, cursor1);
+        set_focus(widget, cursor1, page);
+    } else if (cursor1->ch > LINE_END(widget, cursor1->line)) {
+        while (cursor1->ch > LINE_END(widget, cursor1->line)) cursor1->line++;
+        eve_textw_cursor_update(widget, cursor1);
+        set_focus(widget, cursor1, page);
+    } else {
+        cursor1->x += ch_w;
+    }
+}
+
+uint16_t eve_textw_update(EVETextWidget *widget, EVEPage *page, uint16_t line) {
+    int i;
+    utf32_t ch;
+    uint8_t ch_w;
+    uint8_t ch_l;
+    uint16_t word_w, line_w, line_b;
+    uint16_t new_h;
+    EVEWidget *_widget = &widget->w;
+
+    word_w = 0;
+    line_w = 0;
+    line_b = LINE_EMPTY;
+
+    i = LINE_START(widget, line);
+    while (i < widget->text_size) {
+        ch_l = utf8_dec(widget->text + i, &ch);
+        if (!CHAR_VALID_INPUT(ch) && ch) {
+            ch = 0;
+            widget->text[i] = '\0';
+            widget->text_len = i;
+            widget->line[line] = LINE_EMPTY;
+        }
+
+        ch_w = eve_font_ch_w(widget->font, ch);
+        if (ch <= 0x20) {
+            if ((ch == '\n') || (ch == '\0')) {
+                if (widget->line[line] == i) return line;
+                widget->line[line] = i;
+                line++;
+                if ((ch == '\0') || (line == widget->line_size)) break;
+                word_w = 0;
+                line_w = 0;
+                line_b = LINE_EMPTY;
+            } else if (ch == ' ') {
+                word_w = 0;
+                line_w += ch_w;
+                line_b = i;
+            }
+        } else {
+            word_w += ch_w;
+            line_w += ch_w;
+        }
+        if ((line_w > _widget->g.w) && (line_b != LINE_EMPTY)) {
+            if (widget->line[line] == line_b) return line;
+            widget->line[line] = line_b;
+            line++;
+            if (line == widget->line_size) {
+                i = line_b;
+                break;
+            }
+            line_w = word_w;
+            line_b = LINE_EMPTY;
+        }
+        i += ch_l;
+    }
+
+    widget->line_len = line;
+    new_h = (line + 1) * widget->font->h;
+    for (i=line; i<widget->line_size; i++) {
+        widget->line[i] = LINE_EMPTY;
+    }
+
+    if (_widget->g.h != new_h) {
+        _widget->g.h = new_h;
+        if (page && page->update_g) page->update_g(page, _widget);
+    }
+
+    return line;
+}
+
+void eve_textw_cursor_update(EVETextWidget *widget, EVETextCursor *cursor) {
+    int i = LINE_START(widget, cursor->line);
+    uint16_t x = 0;
+    utf32_t ch;
+    uint8_t ch_l;
+
+    while ((i < cursor->ch) && (i < LINE_END(widget, cursor->line))) {
+        ch_l = utf8_dec(widget->text + i, &ch);
+        x += eve_font_ch_w(widget->font, ch);
+        i += ch_l;
+    }
+    cursor->x = x;
+}
+
+void eve_textw_cursor_set(EVETextWidget *widget, EVETextCursor *cursor, uint8_t tag, int16_t x) {
+    int i;
+    int16_t _x, _d;
+    uint16_t c_line = LINE_EMPTY;
+    utf32_t ch;
+    uint8_t ch_w;
+    uint8_t ch_l;
+    EVEWidget *_widget = &widget->w;
+
+    if ((tag >= widget->tag0) && ((widget->tagN == EVE_TAG_NOTAG) || (tag < widget->tagN))) c_line = tag - widget->tag0 + widget->line0;
+    if (c_line < widget->line_len) {
+        cursor->line = c_line;
+    } else if (c_line == widget->line_len) {
+        cursor->line = c_line - 1;
+    } else if (!cursor->on) {
+        return;
+    }
+
+    x -= _widget->g.x;
+
+    _x = 0;
+    _d = x;
+    i = LINE_START(widget, cursor->line);
+    while (i < LINE_END(widget, cursor->line)) {
+        ch_l = utf8_dec(widget->text + i, &ch);
+        ch_w = eve_font_ch_w(widget->font, ch);
+        _x += ch_w;
+        i += ch_l;
+        if (_x >= x) {
+            if (_x - x > _d) {
+                _x -= ch_w;
+                i -= ch_l;
+            }
+            break;
+        } else {
+            _d = x - _x;
+        }
+    }
+    cursor->x = _x;
+    cursor->ch = i;
+    cursor->on = 1;
+}
+
+void eve_textw_cursor_clear(EVETextWidget *widget, EVETextCursor *cursor) {
+    cursor->on = 0;
+}
diff --git a/fw/fe310/eos/eve/widget/textw.h b/fw/fe310/eos/eve/widget/textw.h
new file mode 100644
index 0000000..cd46ea3
--- /dev/null
+++ b/fw/fe310/eos/eve/widget/textw.h
@@ -0,0 +1,39 @@
+#include <stdint.h>
+
+typedef struct EVETextCursor {
+    char on;
+    uint16_t x;
+    uint16_t line;
+    uint16_t ch;
+} EVETextCursor;
+
+typedef struct EVETextWidget {
+    EVEWidget w;
+    EVEFont *font;
+    utf8_t *text;
+    uint16_t text_size;
+    uint16_t text_len;
+    uint16_t *line;
+    uint16_t line_size;
+    uint16_t line_len;
+    EVETextCursor cursor1;
+    EVETextCursor cursor2;
+    uint16_t line0;
+    uint8_t tag0;
+    uint8_t tagN;
+    struct {
+        EVETextCursor *cursor;
+        short dx;
+        short dl;
+        char mode;
+    } track;
+} EVETextWidget;
+
+void eve_textw_init(EVETextWidget *widget, EVERect *g, EVEFont *font, utf8_t *text, uint16_t text_size, uint16_t *line, uint16_t line_size);
+int eve_textw_touch(EVEWidget *_widget, EVEPage *page, uint8_t tag0, int touch_idx);
+uint8_t eve_textw_draw(EVEWidget *_widget, EVEPage *page, uint8_t tag0);
+void eve_textw_putc(void *_w, int c);
+uint16_t eve_textw_update(EVETextWidget *widget, EVEPage *page, uint16_t line);
+void eve_textw_cursor_update(EVETextWidget *widget, EVETextCursor *cursor);
+void eve_textw_cursor_set(EVETextWidget *widget, EVETextCursor *cursor, uint8_t tag, int16_t x);
+void eve_textw_cursor_clear(EVETextWidget *widget, EVETextCursor *cursor);
diff --git a/fw/fe310/eos/eve/widget/widget.c b/fw/fe310/eos/eve/widget/widget.c
new file mode 100644
index 0000000..ab121d8
--- /dev/null
+++ b/fw/fe310/eos/eve/widget/widget.c
@@ -0,0 +1,41 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+#include "unicode.h"
+
+#include "screen/screen.h"
+#include "screen/window.h"
+#include "screen/page.h"
+#include "screen/font.h"
+
+#include "label.h"
+#include "widget.h"
+#include "pagew.h"
+#include "strw.h"
+#include "textw.h"
+
+static const size_t _eve_wsize[] = {
+    0,
+    sizeof(EVEPageWidget),
+    sizeof(EVEStrWidget),
+    sizeof(EVETextWidget)
+};
+
+void eve_widget_init(EVEWidget *widget, uint8_t type, EVERect *g, eve_widget_touch_t touch, eve_widget_draw_t draw, eve_kbd_input_handler_t putc) {
+    if (g) widget->g = *g;
+    widget->touch = touch;
+    widget->draw = draw;
+    widget->putc = putc;
+    widget->type = type;
+}
+
+void eve_widget_set_label(EVEWidget *widget, EVELabel *label) {
+    widget->label = label;
+}
+
+EVEWidget *eve_widget_next(EVEWidget *widget) {
+    char *_w = (char *)widget;
+    return (EVEWidget *)(_w + _eve_wsize[widget->type]);
+}
diff --git a/fw/fe310/eos/eve/widget/widget.h b/fw/fe310/eos/eve/widget/widget.h
new file mode 100644
index 0000000..1aa2cd7
--- /dev/null
+++ b/fw/fe310/eos/eve/widget/widget.h
@@ -0,0 +1,23 @@
+#include <stdint.h>
+
+#define EVE_WIDGET_TYPE_PAGE    1
+#define EVE_WIDGET_TYPE_STR     2
+#define EVE_WIDGET_TYPE_TEXT    3
+
+struct EVEWidget;
+
+typedef int (*eve_widget_touch_t) (struct EVEWidget *, EVEPage *, uint8_t, int);
+typedef uint8_t (*eve_widget_draw_t) (struct EVEWidget *, EVEPage *, uint8_t);
+
+typedef struct EVEWidget {
+    EVERect g;
+    eve_widget_touch_t touch;
+    eve_widget_draw_t draw;
+    eve_kbd_input_handler_t putc;
+    EVELabel *label;
+    uint8_t type;
+} EVEWidget;
+
+void eve_widget_init(EVEWidget *widget, uint8_t type, EVERect *g, eve_widget_touch_t touch, eve_widget_draw_t draw, eve_kbd_input_handler_t putc);
+void eve_widget_set_label(EVEWidget *widget, EVELabel *label);
+EVEWidget *eve_widget_next(EVEWidget *widget);
diff --git a/fw/fe310/eos/event.c b/fw/fe310/eos/event.c
new file mode 100644
index 0000000..6953dca
--- /dev/null
+++ b/fw/fe310/eos/event.c
@@ -0,0 +1,138 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#include "encoding.h"
+#include "platform.h"
+
+#include "msgq.h"
+#include "event.h"
+
+EOSMsgQ _eos_event_q;
+static EOSMsgItem event_q_array[EOS_EVT_SIZE_Q];
+
+static eos_evt_handler_t evt_handler[EOS_EVT_MAX_EVT + 1];
+
+static void evtq_handler(unsigned char type, unsigned char *buffer, uint16_t len) {
+    unsigned char idx = (type & EOS_EVT_MASK) >> 4;
+
+    if (idx && (idx <= EOS_EVT_MAX_EVT)) {
+        evt_handler[idx](type, buffer, len);
+    } else {
+        eos_evtq_bad_handler(type, buffer, len);
+    }
+}
+
+void eos_evtq_init(void) {
+    int i;
+
+    evt_handler[0] = evtq_handler;
+    for (i=0; i<EOS_EVT_MAX_EVT; i++) {
+        evt_handler[i + 1] = eos_evtq_bad_handler;
+    }
+    eos_msgq_init(&_eos_event_q, event_q_array, EOS_EVT_SIZE_Q);
+}
+
+int eos_evtq_push(unsigned char type, unsigned char *buffer, uint16_t len) {
+    clear_csr(mstatus, MSTATUS_MIE);
+    int ret = eos_msgq_push(&_eos_event_q, type, buffer, len);
+    set_csr(mstatus, MSTATUS_MIE);
+    return ret;
+}
+
+int eos_evtq_push_isr(unsigned char type, unsigned char *buffer, uint16_t len) {
+    return eos_msgq_push(&_eos_event_q, type, buffer, len);
+}
+
+void eos_evtq_pop(unsigned char *type, unsigned char **buffer, uint16_t *len) {
+    clear_csr(mstatus, MSTATUS_MIE);
+    eos_msgq_pop(&_eos_event_q, type, buffer, len);
+    set_csr(mstatus, MSTATUS_MIE);
+}
+
+void eos_evtq_pop_isr(unsigned char *type, unsigned char **buffer, uint16_t *len) {
+    eos_msgq_pop(&_eos_event_q, type, buffer, len);
+}
+
+void eos_evtq_wait(unsigned char type, unsigned char *selector, uint16_t sel_len, unsigned char **buffer, uint16_t *len) {
+    int rv = 0;
+
+    while(!rv) {
+        clear_csr(mstatus, MSTATUS_MIE);
+        rv = eos_msgq_get(&_eos_event_q, type, selector, sel_len, buffer, len);
+        if (!rv) {
+            unsigned char _type;
+            unsigned char *_buffer;
+            uint16_t _len;
+
+            eos_msgq_pop(&_eos_event_q, &_type, &_buffer, &_len);
+            if (_type) {
+                set_csr(mstatus, MSTATUS_MIE);
+                evt_handler[0](_type, _buffer, _len);
+            } else {
+                asm volatile ("wfi");
+                set_csr(mstatus, MSTATUS_MIE);
+            }
+        } else {
+            set_csr(mstatus, MSTATUS_MIE);
+        }
+    }
+}
+
+void eos_evtq_flush(void) {
+    clear_csr(mstatus, MSTATUS_MIE);
+    eos_evtq_flush_isr();
+    set_csr(mstatus, MSTATUS_MIE);
+}
+
+void eos_evtq_flush_isr(void) {
+    unsigned char type;
+    unsigned char *buffer;
+    uint16_t len;
+
+    do {
+        eos_msgq_pop(&_eos_event_q, &type, &buffer, &len);
+        if (type) {
+            set_csr(mstatus, MSTATUS_MIE);
+            evt_handler[0](type, buffer, len);
+            clear_csr(mstatus, MSTATUS_MIE);
+        }
+    } while (type);
+}
+
+void eos_evtq_loop(void) {
+    unsigned char type;
+    unsigned char *buffer;
+    uint16_t len;
+    int foo = 1;
+
+    while(foo) {
+        clear_csr(mstatus, MSTATUS_MIE);
+        eos_msgq_pop(&_eos_event_q, &type, &buffer, &len);
+        if (type) {
+            set_csr(mstatus, MSTATUS_MIE);
+            evt_handler[0](type, buffer, len);
+        } else {
+            asm volatile ("wfi");
+            set_csr(mstatus, MSTATUS_MIE);
+        }
+    }
+}
+
+void eos_evtq_bad_handler(unsigned char type, unsigned char *buffer, uint16_t len) {
+    printf("evt bad handler:0x%x\n", type);
+}
+
+void eos_evtq_set_handler(unsigned char type, eos_evt_handler_t handler) {
+    unsigned char idx = (type & EOS_EVT_MASK) >> 4;
+
+    if (idx <= EOS_EVT_MAX_EVT) evt_handler[idx] = handler;
+}
+
+eos_evt_handler_t eos_evtq_get_handler(unsigned char type) {
+    unsigned char idx = (type & EOS_EVT_MASK) >> 4;
+
+    if (idx <= EOS_EVT_MAX_EVT) return evt_handler[idx];
+    return NULL;
+}
diff --git a/fw/fe310/eos/event.h b/fw/fe310/eos/event.h
new file mode 100644
index 0000000..ba906bb
--- /dev/null
+++ b/fw/fe310/eos/event.h
@@ -0,0 +1,20 @@
+#include <stdint.h>
+
+#include "evt_def.h"
+
+typedef void (*eos_evt_handler_t) (unsigned char, unsigned char *, uint16_t);
+
+void eos_evtq_init(void);
+int eos_evtq_push(unsigned char type, unsigned char *buffer, uint16_t len);
+int eos_evtq_push_isr(unsigned char type, unsigned char *buffer, uint16_t len);
+void eos_evtq_pop(unsigned char *type, unsigned char **buffer, uint16_t *len);
+void eos_evtq_pop_isr(unsigned char *type, unsigned char **buffer, uint16_t *len);
+void eos_evtq_wait(unsigned char type, unsigned char *selector, uint16_t sel_len, unsigned char **buffer, uint16_t *len);
+void eos_evtq_flush(void);
+void eos_evtq_flush_isr(void);
+void eos_evtq_loop(void);
+
+void eos_evtq_bad_handler(unsigned char type, unsigned char *buffer, uint16_t len);
+void eos_evtq_set_handler(unsigned char type, eos_evt_handler_t handler);
+eos_evt_handler_t eos_evtq_get_handler(unsigned char type);
+
diff --git a/fw/fe310/eos/evt_def.h b/fw/fe310/eos/evt_def.h
new file mode 100644
index 0000000..16c4255
--- /dev/null
+++ b/fw/fe310/eos/evt_def.h
@@ -0,0 +1,12 @@
+#define EOS_EVT_TIMER               0x10
+#define EOS_EVT_I2S                 0x20
+#define EOS_EVT_NET                 0x30
+#define EOS_EVT_SPI                 0x40
+#define EOS_EVT_UART                0x50
+#define EOS_EVT_UI                  0x60
+#define EOS_EVT_USER                0x80
+
+#define EOS_EVT_MAX_EVT             8
+#define EOS_EVT_MASK                0xF0
+
+#define EOS_EVT_SIZE_Q              4
diff --git a/fw/fe310/eos/i2s.c b/fw/fe310/eos/i2s.c
new file mode 100644
index 0000000..c8216ff
--- /dev/null
+++ b/fw/fe310/eos/i2s.c
@@ -0,0 +1,407 @@
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "encoding.h"
+#include "platform.h"
+#include "prci_driver.h"
+
+#include "eos.h"
+#include "interrupt.h"
+#include "event.h"
+
+#include "i2s.h"
+#include "i2s_def.h"
+#include "irq_def.h"
+
+#define I2S_PWM_REG_CK      PWM0_REG
+#define I2S_PWM_REG_WS_MIC  PWM1_REG
+#define I2S_PWM_REG_WS_SPK  PWM2_REG
+
+#define MIN(X, Y)           (((X) < (Y)) ? (X) : (Y))
+#define MAX(X, Y)           (((X) > (Y)) ? (X) : (Y))
+
+#define EOS_ABUF_IDX_MASK(IDX, SIZE)  ((IDX) & ((SIZE) - 1))
+
+EOSABuf _eos_i2s_mic_buf;
+EOSABuf _eos_i2s_spk_buf;
+uint32_t _eos_i2s_fmt = 0;
+uint32_t _eos_i2s_mic_wm = 0;
+uint32_t _eos_i2s_spk_wm = 0;
+uint32_t _eos_i2s_mic_evt_enable = 0;
+uint32_t _eos_i2s_spk_evt_enable = 0;
+
+static eos_i2s_handler_t i2s_spk_handler = NULL;
+static eos_i2s_handler_t i2s_mic_handler = NULL;
+static uint32_t i2s_clk_period;
+static uint8_t i2s_mic_volume = 0;      /* 0 - 8 */
+static uint8_t i2s_spk_volume = 16;     /* 0 - 16 */
+
+static void _abuf_init(EOSABuf *buf, uint8_t *array, uint16_t size) {
+    buf->idx_r = 0;
+    buf->idx_w = 0;
+    buf->size = size;
+    buf->array = array;
+}
+
+static int _abuf_push8(EOSABuf *buf, uint8_t sample) {
+    if ((uint16_t)(buf->idx_w - buf->idx_r) == buf->size) return EOS_ERR_FULL;
+
+    buf->array[EOS_ABUF_IDX_MASK(buf->idx_w, buf->size)] = sample;
+    buf->idx_w++;
+    return EOS_OK;
+}
+
+static int _abuf_push16(EOSABuf *buf, uint16_t sample) {
+    if ((uint16_t)(buf->idx_w - buf->idx_r) == buf->size) return EOS_ERR_FULL;
+
+    buf->array[EOS_ABUF_IDX_MASK(buf->idx_w, buf->size)] = sample >> 8;
+    buf->array[EOS_ABUF_IDX_MASK(buf->idx_w + 1, buf->size)] = sample & 0xFF;
+    buf->idx_w += 2;
+    return EOS_OK;
+}
+
+static int _abuf_pop8(EOSABuf *buf, uint8_t *sample) {
+    if (buf->idx_r == buf->idx_w) {
+        return EOS_ERR_EMPTY;
+    } else {
+        *sample = buf->array[EOS_ABUF_IDX_MASK(buf->idx_r, buf->size)];
+        buf->idx_r++;
+        return EOS_OK;
+    }
+}
+
+static int _abuf_pop16(EOSABuf *buf, uint16_t *sample) {
+    if (buf->idx_r == buf->idx_w) {
+        return EOS_ERR_EMPTY;
+    } else {
+        *sample = buf->array[EOS_ABUF_IDX_MASK(buf->idx_r, buf->size)] << 8;
+        *sample |= buf->array[EOS_ABUF_IDX_MASK(buf->idx_r + 1, buf->size)];
+        buf->idx_r += 2;
+        return EOS_OK;
+    }
+}
+
+
+static void _abuf_flush(EOSABuf *buf) {
+    buf->idx_r = 0;
+    buf->idx_w = 0;
+}
+
+static uint16_t _abuf_len(EOSABuf *buf) {
+    return buf->idx_w - buf->idx_r;
+}
+
+static void i2s_handle_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
+    switch(type & ~EOS_EVT_MASK) {
+        case EOS_I2S_ETYPE_MIC:
+            if (i2s_mic_handler) i2s_mic_handler(type);
+            clear_csr(mstatus, MSTATUS_MIE);
+            _eos_i2s_mic_evt_enable = 1;
+            set_csr(mstatus, MSTATUS_MIE);
+            break;
+        case EOS_I2S_ETYPE_SPK:
+            if (i2s_spk_handler) i2s_spk_handler(type);
+            clear_csr(mstatus, MSTATUS_MIE);
+            _eos_i2s_spk_evt_enable = 1;
+            set_csr(mstatus, MSTATUS_MIE);
+            break;
+        default:
+            eos_evtq_bad_handler(type, buffer, len);
+            break;
+    }
+}
+
+static void _mic_vol_set(uint8_t vol) {
+    I2S_PWM_REG_WS_MIC(PWM_CMP2) = i2s_clk_period * (vol + 1);
+    I2S_PWM_REG_WS_MIC(PWM_CMP3) = I2S_PWM_REG_WS_MIC(PWM_CMP2) + i2s_clk_period * 16;
+}
+
+static void _spk_vol_set(uint8_t vol) {
+    int spk_cmp = vol + i2s_mic_volume - 16;
+
+    if (spk_cmp <= 0) {
+        I2S_PWM_REG_WS_SPK(PWM_CMP1) = i2s_clk_period * (32 + spk_cmp);
+        I2S_PWM_REG_WS_SPK(PWM_CMP2) = i2s_clk_period * (64 + spk_cmp);
+        I2S_PWM_REG_WS_SPK(PWM_CMP3) = i2s_clk_period * 33;
+        GPIO_REG(GPIO_OUTPUT_XOR) &= ~(1 << I2S_PIN_WS_SPK);
+    } else {
+        I2S_PWM_REG_WS_SPK(PWM_CMP1) = i2s_clk_period * spk_cmp;
+        I2S_PWM_REG_WS_SPK(PWM_CMP2) = i2s_clk_period * (32 + spk_cmp);
+        I2S_PWM_REG_WS_SPK(PWM_CMP3) = i2s_clk_period * (33 + spk_cmp);
+        GPIO_REG(GPIO_OUTPUT_XOR) |= (1 << I2S_PIN_WS_SPK);
+    }
+}
+
+extern void _eos_i2s_start_pwm(void);
+
+void eos_i2s_init(void) {
+    eos_evtq_set_handler(EOS_EVT_I2S, i2s_handle_evt);
+
+    GPIO_REG(GPIO_INPUT_EN)     &= ~(1 << I2S_PIN_CK);
+    GPIO_REG(GPIO_OUTPUT_EN)    |=  (1 << I2S_PIN_CK);
+    GPIO_REG(GPIO_PULLUP_EN)    &= ~(1 << I2S_PIN_CK);
+    GPIO_REG(GPIO_OUTPUT_XOR)   &= ~(1 << I2S_PIN_CK);
+
+    GPIO_REG(GPIO_INPUT_EN)     &= ~(1 << I2S_PIN_CK_SW);
+    GPIO_REG(GPIO_OUTPUT_EN)    |=  (1 << I2S_PIN_CK_SW);
+    GPIO_REG(GPIO_PULLUP_EN)    &= ~(1 << I2S_PIN_CK_SW);
+    GPIO_REG(GPIO_OUTPUT_XOR)   &= ~(1 << I2S_PIN_CK_SW);
+
+    GPIO_REG(GPIO_INPUT_EN)     &= ~(1 << I2S_PIN_WS_MIC);
+    GPIO_REG(GPIO_OUTPUT_EN)    |=  (1 << I2S_PIN_WS_MIC);
+    GPIO_REG(GPIO_PULLUP_EN)    &= ~(1 << I2S_PIN_WS_MIC);
+    GPIO_REG(GPIO_OUTPUT_XOR)   &= ~(1 << I2S_PIN_WS_MIC);
+
+    GPIO_REG(GPIO_INPUT_EN)     &= ~(1 << I2S_PIN_WS_SPK);
+    GPIO_REG(GPIO_OUTPUT_EN)    |=  (1 << I2S_PIN_WS_SPK);
+    GPIO_REG(GPIO_PULLUP_EN)    &= ~(1 << I2S_PIN_WS_SPK);
+    GPIO_REG(GPIO_OUTPUT_XOR)   &= ~(1 << I2S_PIN_WS_SPK);
+
+    GPIO_REG(GPIO_INPUT_EN)     &= ~(1 << I2S_PIN_CK_SR);
+    GPIO_REG(GPIO_OUTPUT_EN)    |=  (1 << I2S_PIN_CK_SR);
+    GPIO_REG(GPIO_PULLUP_EN)    &= ~(1 << I2S_PIN_CK_SR);
+    GPIO_REG(GPIO_OUTPUT_XOR)   &= ~(1 << I2S_PIN_CK_SR);
+
+    GPIO_REG(GPIO_INPUT_EN)     &= ~(1 << I2S_PIN_SD_IN);
+    GPIO_REG(GPIO_OUTPUT_EN)    &= ~(1 << I2S_PIN_SD_IN);
+    GPIO_REG(GPIO_PULLUP_EN)    &= ~(1 << I2S_PIN_SD_IN);
+    GPIO_REG(GPIO_OUTPUT_XOR)   &= ~(1 << I2S_PIN_SD_IN);
+
+    GPIO_REG(GPIO_INPUT_EN)     &= ~(1 << I2S_PIN_SD_OUT);
+    GPIO_REG(GPIO_OUTPUT_EN)    &= ~(1 << I2S_PIN_SD_OUT);
+    GPIO_REG(GPIO_PULLUP_EN)    &= ~(1 << I2S_PIN_SD_OUT);
+    GPIO_REG(GPIO_OUTPUT_XOR)   &= ~(1 << I2S_PIN_SD_OUT);
+
+    GPIO_REG(GPIO_OUTPUT_VAL)   |=  (1 << I2S_PIN_CK_SW);
+    GPIO_REG(GPIO_OUTPUT_VAL)   &= ~((1 << I2S_PIN_CK) | (1 << I2S_PIN_CK_SR) | (1 << I2S_PIN_WS_MIC) | (1 << I2S_PIN_WS_SPK));
+}
+
+void eos_i2s_start(uint32_t sample_rate, unsigned char fmt) {
+    i2s_clk_period = ((PRCI_get_cpu_freq() / (sample_rate * 64)) & ~I2S_PWM_SCALE_CK_MASK) + 1;
+
+    I2S_PWM_REG_CK(PWM_CMP0)            = i2s_clk_period >> I2S_PWM_SCALE_CK;
+    I2S_PWM_REG_CK(PWM_CMP1)            = I2S_PWM_REG_CK(PWM_CMP0) / 2;
+    I2S_PWM_REG_CK(PWM_CMP2)            = 0;
+    I2S_PWM_REG_CK(PWM_CMP3)            = 0;
+
+    I2S_PWM_REG_WS_MIC(PWM_CMP0)        = i2s_clk_period * 64 - 1;
+    I2S_PWM_REG_WS_MIC(PWM_CMP1)        = i2s_clk_period * 32;
+    _mic_vol_set(i2s_mic_volume);
+
+    I2S_PWM_REG_WS_SPK(PWM_CMP0)        = i2s_clk_period * 64 - 1;
+    _spk_vol_set(i2s_spk_volume);
+
+    I2S_PWM_REG_CK(PWM_COUNT)           = 0;
+    I2S_PWM_REG_WS_MIC(PWM_COUNT)       = 0;
+    I2S_PWM_REG_WS_SPK(PWM_COUNT)       = i2s_clk_period / 2;
+
+    _eos_i2s_fmt = fmt;
+    _eos_i2s_mic_evt_enable = 1;
+    _eos_i2s_spk_evt_enable = 1;
+
+    eos_intr_set_priority(I2S_IRQ_WS_ID, IRQ_PRIORITY_I2S_WS);
+    eos_intr_set_priority(I2S_IRQ_SD_ID, 0);
+    eos_intr_enable(I2S_IRQ_WS_ID);
+    eos_intr_enable(I2S_IRQ_SD_ID);
+
+    _eos_i2s_start_pwm();
+    /*
+    I2S_PWM_REG_CK(PWM_CFG)         = PWM_CFG_ENALWAYS | PWM_CFG_ZEROCMP | I2S_PWM_SCALE_CK;
+    I2S_PWM_REG_WS_MIC(PWM_CFG)     = PWM_CFG_ENALWAYS | PWM_CFG_ZEROCMP | PWM_CFG_CMP2GANG;
+    I2S_PWM_REG_WS_SPK(PWM_CFG)     = PWM_CFG_ENALWAYS | PWM_CFG_ZEROCMP | PWM_CFG_CMP1GANG;
+    */
+
+    GPIO_REG(GPIO_INPUT_EN)     |=  (1 << I2S_PIN_SD_IN);
+    GPIO_REG(GPIO_OUTPUT_VAL)   |=  (1 << I2S_PIN_CK_SR);
+
+    GPIO_REG(GPIO_IOF_SEL)      |=  (1 << I2S_PIN_CK);
+    GPIO_REG(GPIO_IOF_EN)       |=  (1 << I2S_PIN_CK);
+
+    GPIO_REG(GPIO_IOF_SEL)      |=  (1 << I2S_PIN_CK_SW);
+    GPIO_REG(GPIO_IOF_EN)       |=  (1 << I2S_PIN_CK_SW);
+
+    GPIO_REG(GPIO_IOF_SEL)      |=  (1 << I2S_PIN_WS_MIC);
+    GPIO_REG(GPIO_IOF_EN)       |=  (1 << I2S_PIN_WS_MIC);
+
+    GPIO_REG(GPIO_IOF_SEL)      |=  (1 << I2S_PIN_WS_SPK);
+    GPIO_REG(GPIO_IOF_EN)       |=  (1 << I2S_PIN_WS_SPK);
+}
+
+void eos_i2s_stop(void) {
+    I2S_PWM_REG_CK(PWM_CFG)         = 0;
+    I2S_PWM_REG_WS_MIC(PWM_CFG)     = 0;
+    I2S_PWM_REG_WS_SPK(PWM_CFG)     = 0;
+    I2S_PWM_REG_CK(PWM_COUNT)       = 0;
+    I2S_PWM_REG_WS_MIC(PWM_COUNT)   = 0;
+    I2S_PWM_REG_WS_SPK(PWM_COUNT)   = 0;
+
+    _eos_i2s_mic_evt_enable = 0;
+    _eos_i2s_spk_evt_enable = 0;
+    eos_intr_set_priority(I2S_IRQ_WS_ID, 0);
+    eos_intr_set_priority(I2S_IRQ_SD_ID, 0);
+    eos_intr_disable(I2S_IRQ_WS_ID);
+    eos_intr_disable(I2S_IRQ_SD_ID);
+
+    GPIO_REG(GPIO_IOF_EN)       &= ~(1 << I2S_PIN_CK);
+    GPIO_REG(GPIO_IOF_SEL)      &= ~(1 << I2S_PIN_CK);
+
+    GPIO_REG(GPIO_IOF_EN)       &= ~(1 << I2S_PIN_CK_SW);
+    GPIO_REG(GPIO_IOF_SEL)      &= ~(1 << I2S_PIN_CK_SW);
+
+    GPIO_REG(GPIO_IOF_EN)       &= ~(1 << I2S_PIN_WS_MIC);
+    GPIO_REG(GPIO_IOF_SEL)      &= ~(1 << I2S_PIN_WS_MIC);
+
+    GPIO_REG(GPIO_IOF_EN)       &= ~(1 << I2S_PIN_WS_SPK);
+    GPIO_REG(GPIO_IOF_SEL)      &= ~(1 << I2S_PIN_WS_SPK);
+
+    GPIO_REG(GPIO_INPUT_EN)     &= ~(1 << I2S_PIN_SD_IN);
+
+    GPIO_REG(GPIO_OUTPUT_VAL)   |=  (1 << I2S_PIN_CK_SW);
+    GPIO_REG(GPIO_OUTPUT_VAL)   &= ~((1 << I2S_PIN_CK) | (1 << I2S_PIN_CK_SR) | (1 << I2S_PIN_WS_MIC) | (1 << I2S_PIN_WS_SPK));
+}
+
+void eos_i2s_mic_init(uint8_t *mic_arr, uint16_t mic_arr_size) {
+    clear_csr(mstatus, MSTATUS_MIE);
+    _abuf_init(&_eos_i2s_mic_buf, mic_arr, mic_arr_size);
+    set_csr(mstatus, MSTATUS_MIE);
+}
+
+void eos_i2s_mic_set_handler(eos_i2s_handler_t wm_handler) {
+    clear_csr(mstatus, MSTATUS_MIE);
+    i2s_mic_handler = wm_handler;
+    set_csr(mstatus, MSTATUS_MIE);
+}
+
+void eos_i2s_mic_set_wm(uint16_t wm) {
+    clear_csr(mstatus, MSTATUS_MIE);
+    _eos_i2s_mic_wm = wm;
+    set_csr(mstatus, MSTATUS_MIE);
+
+}
+
+uint16_t eos_i2s_mic_len(void) {
+    clear_csr(mstatus, MSTATUS_MIE);
+    uint16_t ret = _abuf_len(&_eos_i2s_mic_buf);
+    set_csr(mstatus, MSTATUS_MIE);
+    return ret;
+}
+
+uint16_t eos_i2s_mic_read(uint8_t *sample, uint16_t ssize) {
+    uint16_t i;
+    uint16_t _ssize = 0;
+
+    clear_csr(mstatus, MSTATUS_MIE);
+    _ssize = MIN(ssize, _abuf_len(&_eos_i2s_mic_buf));
+    set_csr(mstatus, MSTATUS_MIE);
+
+    for (i=0; i<_ssize; i++) {
+        sample[i] = _eos_i2s_mic_buf.array[EOS_ABUF_IDX_MASK(_eos_i2s_mic_buf.idx_r + i, _eos_i2s_mic_buf.size)];
+    }
+
+    clear_csr(mstatus, MSTATUS_MIE);
+    _eos_i2s_mic_buf.idx_r += _ssize;
+    set_csr(mstatus, MSTATUS_MIE);
+
+    return _ssize;
+}
+
+int eos_i2s_mic_pop8(uint8_t *sample) {
+    clear_csr(mstatus, MSTATUS_MIE);
+    int ret = _abuf_pop8(&_eos_i2s_mic_buf, sample);
+    set_csr(mstatus, MSTATUS_MIE);
+    return ret;
+}
+
+int eos_i2s_mic_pop16(uint16_t *sample) {
+    clear_csr(mstatus, MSTATUS_MIE);
+    int ret = _abuf_pop16(&_eos_i2s_mic_buf, sample);
+    set_csr(mstatus, MSTATUS_MIE);
+    return ret;
+}
+
+int eos_i2s_mic_vol_get(void) {
+    return i2s_mic_volume;
+}
+
+void eos_i2s_mic_vol_set(int vol) {
+    if ((vol < 0) || (vol > 8)) return;
+
+    i2s_mic_volume = vol;
+
+    clear_csr(mstatus, MSTATUS_MIE);
+    _mic_vol_set(vol);
+    _spk_vol_set(i2s_spk_volume);
+    set_csr(mstatus, MSTATUS_MIE);
+}
+
+void eos_i2s_spk_init(uint8_t *spk_arr, uint16_t spk_arr_size) {
+    clear_csr(mstatus, MSTATUS_MIE);
+    _abuf_init(&_eos_i2s_spk_buf, spk_arr, spk_arr_size);
+    set_csr(mstatus, MSTATUS_MIE);
+}
+
+void eos_i2s_spk_set_handler(eos_i2s_handler_t wm_handler) {
+    clear_csr(mstatus, MSTATUS_MIE);
+    i2s_spk_handler = wm_handler;
+    set_csr(mstatus, MSTATUS_MIE);
+}
+
+void eos_i2s_spk_set_wm(uint16_t wm) {
+    clear_csr(mstatus, MSTATUS_MIE);
+    _eos_i2s_spk_wm = wm;
+    set_csr(mstatus, MSTATUS_MIE);
+}
+
+uint16_t eos_i2s_spk_len(void) {
+    clear_csr(mstatus, MSTATUS_MIE);
+    uint16_t ret = _abuf_len(&_eos_i2s_spk_buf);
+    set_csr(mstatus, MSTATUS_MIE);
+    return ret;
+}
+
+uint16_t eos_i2s_spk_write(uint8_t *sample, uint16_t ssize) {
+    uint16_t i;
+    uint16_t _ssize = 0;
+
+    clear_csr(mstatus, MSTATUS_MIE);
+    _ssize = MIN(ssize, _eos_i2s_spk_buf.size - _abuf_len(&_eos_i2s_spk_buf));
+    set_csr(mstatus, MSTATUS_MIE);
+
+    for (i=0; i<_ssize; i++) {
+        _eos_i2s_spk_buf.array[EOS_ABUF_IDX_MASK(_eos_i2s_spk_buf.idx_w + i, _eos_i2s_spk_buf.size)] = sample[i];
+    }
+
+    clear_csr(mstatus, MSTATUS_MIE);
+    _eos_i2s_spk_buf.idx_w += _ssize;
+    set_csr(mstatus, MSTATUS_MIE);
+
+    return _ssize;
+}
+
+int eos_i2s_spk_push8(uint8_t sample) {
+    clear_csr(mstatus, MSTATUS_MIE);
+    int ret = _abuf_push8(&_eos_i2s_spk_buf, sample);
+    set_csr(mstatus, MSTATUS_MIE);
+    return ret;
+}
+
+int eos_i2s_spk_push16(uint16_t sample) {
+    clear_csr(mstatus, MSTATUS_MIE);
+    int ret = _abuf_push16(&_eos_i2s_spk_buf, sample);
+    set_csr(mstatus, MSTATUS_MIE);
+    return ret;
+}
+
+int eos_i2s_spk_vol_get(void) {
+    return i2s_spk_volume;
+}
+
+void eos_i2s_spk_vol_set(int vol) {
+    if ((vol < 0) || (vol > 16)) return;
+
+    i2s_spk_volume = vol;
+
+    clear_csr(mstatus, MSTATUS_MIE);
+    _spk_vol_set(vol);
+    set_csr(mstatus, MSTATUS_MIE);
+}
diff --git a/fw/fe310/eos/i2s.h b/fw/fe310/eos/i2s.h
new file mode 100644
index 0000000..744958e
--- /dev/null
+++ b/fw/fe310/eos/i2s.h
@@ -0,0 +1,40 @@
+#include <stdint.h>
+
+#define EOS_I2S_FMT_ALAW        0
+#define EOS_I2S_FMT_PCM16       1
+
+/* should match i2s_def.h definitions */
+#define EOS_I2S_ETYPE_MIC       1
+#define EOS_I2S_ETYPE_SPK       2
+
+
+typedef struct EOSABuf {
+    uint16_t idx_r;
+    uint16_t idx_w;
+    uint16_t size;
+    uint8_t *array;
+} EOSABuf;
+
+typedef void (*eos_i2s_handler_t) (unsigned char);
+
+void eos_i2s_init(void);
+void eos_i2s_start(uint32_t sample_rate, unsigned char fmt);
+void eos_i2s_stop(void);
+void eos_i2s_mic_init(uint8_t *mic_arr, uint16_t mic_arr_size);
+void eos_i2s_mic_set_handler(eos_i2s_handler_t wm_handler);
+void eos_i2s_mic_set_wm(uint16_t wm);
+uint16_t eos_i2s_mic_len(void);
+uint16_t eos_i2s_mic_read(uint8_t *sample, uint16_t ssize);
+int eos_i2s_mic_pop8(uint8_t *sample);
+int eos_i2s_mic_pop16(uint16_t *sample);
+int eos_i2s_mic_vol_get(void);
+void eos_i2s_mic_vol_set(int vol);
+void eos_i2s_spk_init(uint8_t *mic_arr, uint16_t mic_arr_size);
+void eos_i2s_spk_set_handler(eos_i2s_handler_t wm_handler);
+void eos_i2s_spk_set_wm(uint16_t wm);
+uint16_t eos_i2s_spk_len(void);
+uint16_t eos_i2s_spk_write(uint8_t *sample, uint16_t ssize);
+int eos_i2s_spk_push8(uint8_t sample);
+int eos_i2s_spk_push16(uint16_t sample);
+int eos_i2s_spk_vol_get(void);
+void eos_i2s_spk_vol_set(int vol);
diff --git a/fw/fe310/eos/i2s_def.h b/fw/fe310/eos/i2s_def.h
new file mode 100644
index 0000000..3a09982
--- /dev/null
+++ b/fw/fe310/eos/i2s_def.h
@@ -0,0 +1,24 @@
+#define I2S_ETYPE_MIC           1
+#define I2S_ETYPE_SPK           2
+
+#define I2S_PIN_CK              1       /* PWM 0.1 */
+#define I2S_PIN_CK_SW           21      /* PWM 1.2 */
+#define I2S_PIN_CK_SR           18
+#define I2S_PIN_WS_MIC          19      /* PWM 1.1 */
+#define I2S_PIN_WS_SPK          11      /* PWM 2.1 */
+#define I2S_PIN_SD_IN           13
+#define I2S_PIN_SD_OUT          12
+
+#define I2S_IRQ_WS_ID           (INT_PWM2_BASE + 0)
+#define I2S_IRQ_SD_ID           (INT_PWM2_BASE + 3)
+
+#define I2S_IDLE_CYCLES         8
+
+#define I2S_PWM_SCALE_CK        2
+#define I2S_PWM_SCALE_CK_MASK   0x0003
+
+/* asm */
+#define I2S_ABUF_OFF_IDXR       0
+#define I2S_ABUF_OFF_IDXW       2
+#define I2S_ABUF_OFF_SIZE       4
+#define I2S_ABUF_OFF_ARRAY      8
diff --git a/fw/fe310/eos/interrupt.c b/fw/fe310/eos/interrupt.c
new file mode 100644
index 0000000..820d1fa
--- /dev/null
+++ b/fw/fe310/eos/interrupt.c
@@ -0,0 +1,72 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#include "encoding.h"
+#include "platform.h"
+#include "plic_driver.h"
+
+#include "interrupt.h"
+
+// Global Instance data for the PLIC
+// for use by the PLIC Driver.
+static plic_instance_t plic;
+
+static eos_intr_handler_t ext_interrupt_handler[PLIC_NUM_INTERRUPTS];
+
+uintptr_t eos_intr_handle(uintptr_t int_num) {
+    if ((int_num >=1) && (int_num <= PLIC_NUM_INTERRUPTS) && (ext_interrupt_handler[int_num-1])) {
+        ext_interrupt_handler[int_num-1]();
+    } else {
+        printf("error:%d\n", int_num);
+        exit(int_num);
+    }
+    return int_num;
+}
+
+void eos_intr_init(void) {
+    for (int i = 0; i < PLIC_NUM_INTERRUPTS; i++){
+        ext_interrupt_handler[i] = NULL;
+    }
+
+    /**************************************************************************
+    * Set up the PLIC
+    **************************************************************************/
+    PLIC_init(&plic,
+ 	    PLIC_CTRL_ADDR,
+ 	    PLIC_NUM_INTERRUPTS,
+ 	    PLIC_NUM_PRIORITIES);
+
+    // Enable Global (PLIC) interrupts.
+    set_csr(mie, MIP_MEIP);
+
+    // Enable all interrupts
+    set_csr(mstatus, MSTATUS_MIE);
+}
+
+void eos_intr_set(uint8_t int_num, uint8_t priority, eos_intr_handler_t handler) {
+    ext_interrupt_handler[int_num-1] = handler;
+    PLIC_set_priority(&plic, int_num, priority);
+    PLIC_enable_interrupt(&plic, int_num);
+}
+
+void eos_intr_set_handler(uint8_t int_num, eos_intr_handler_t handler) {
+    ext_interrupt_handler[int_num-1] = handler;
+}
+
+void eos_intr_set_priority(uint8_t int_num, uint8_t priority) {
+    PLIC_set_priority(&plic, int_num, priority);
+}
+
+void eos_intr_enable(uint8_t int_num) {
+    PLIC_enable_interrupt(&plic, int_num);
+}
+
+void eos_intr_disable(uint8_t int_num) {
+    PLIC_disable_interrupt(&plic, int_num);
+}
+
+void eos_intr_mask(uint8_t priority) {
+    PLIC_set_threshold(&plic, priority);
+}
diff --git a/fw/fe310/eos/interrupt.h b/fw/fe310/eos/interrupt.h
new file mode 100644
index 0000000..075e7eb
--- /dev/null
+++ b/fw/fe310/eos/interrupt.h
@@ -0,0 +1,11 @@
+#include <stdint.h>
+
+typedef void (*eos_intr_handler_t) (void);
+
+void eos_intr_init(void);
+void eos_intr_set(uint8_t int_num, uint8_t priority, eos_intr_handler_t handler);
+void eos_intr_set_handler(uint8_t int_num, eos_intr_handler_t handler);
+void eos_intr_set_priority(uint8_t int_num, uint8_t priority);
+void eos_intr_enable(uint8_t int_num);
+void eos_intr_disable(uint8_t int_num);
+void eos_intr_mask(uint8_t priority);
\ No newline at end of file
diff --git a/fw/fe310/eos/irq_def.h b/fw/fe310/eos/irq_def.h
new file mode 100644
index 0000000..5d9fb1e
--- /dev/null
+++ b/fw/fe310/eos/irq_def.h
@@ -0,0 +1,11 @@
+#define IRQ_PRIORITY_I2S_SD     7
+#define IRQ_PRIORITY_I2S_WS     6
+
+#define IRQ_PRIORITY_SPI_XCHG   5
+
+#define IRQ_PRIORITY_NET_CTS    4
+#define IRQ_PRIORITY_NET_RTS    4
+
+#define IRQ_PRIORITY_UART       1
+
+#define IRQ_PRIORITY_UI         5
diff --git a/fw/fe310/eos/msgq.c b/fw/fe310/eos/msgq.c
new file mode 100644
index 0000000..e76090c
--- /dev/null
+++ b/fw/fe310/eos/msgq.c
@@ -0,0 +1,108 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "eos.h"
+#include "msgq.h"
+
+#define IDX_MASK(IDX, SIZE)     ((IDX) & ((SIZE) - 1))
+#define IDX_HALF                ((uint8_t)1 << (sizeof(uint8_t) * 8 - 1))
+#define IDX_LT(a,b)             ((uint8_t)((uint8_t)(a) - (uint8_t)(b)) > IDX_HALF)
+#define IDX_LTE(a,b)            ((uint8_t)((uint8_t)(b) - (uint8_t)(a)) < IDX_HALF)
+
+void eos_msgq_init(EOSMsgQ *msgq, EOSMsgItem *array, uint8_t size) {
+    msgq->idx_r = 0;
+    msgq->idx_w = 0;
+    msgq->size = size;
+    msgq->array = array;
+}
+
+int eos_msgq_push(EOSMsgQ *msgq, unsigned char type, unsigned char *buffer, uint16_t len) {
+    if ((uint8_t)(msgq->idx_w - msgq->idx_r) == msgq->size) return EOS_ERR_FULL;
+
+    uint8_t idx = IDX_MASK(msgq->idx_w, msgq->size);
+    msgq->array[idx].type = type;
+    msgq->array[idx].buffer = buffer;
+    msgq->array[idx].len = len;
+    msgq->idx_w++;
+    return EOS_OK;
+}
+
+void eos_msgq_pop(EOSMsgQ *msgq, unsigned char *type, unsigned char **buffer, uint16_t *len) {
+    if (msgq->idx_r == msgq->idx_w) {
+        *type = 0;
+        *buffer = NULL;
+        *len = 0;
+    } else {
+        uint8_t idx = IDX_MASK(msgq->idx_r, msgq->size);
+        *type = msgq->array[idx].type;
+        *buffer = msgq->array[idx].buffer;
+        *len = msgq->array[idx].len;
+        msgq->idx_r++;
+    }
+}
+
+int eos_msgq_get(EOSMsgQ *msgq, unsigned char type, unsigned char *selector, uint16_t sel_len, unsigned char **buffer, uint16_t *len) {
+    uint8_t i, j, idx;
+
+    if (msgq->idx_r == msgq->idx_w) {
+        *buffer = NULL;
+        *len = 0;
+        return 0;
+    }
+
+    idx = IDX_MASK(msgq->idx_r, msgq->size);
+    if (type == msgq->array[idx].type) {
+        *buffer = msgq->array[idx].buffer;
+        *len = msgq->array[idx].len;
+        if ((selector == NULL) || (sel_len == 0) || ((sel_len <= *len) && (memcmp(selector, *buffer, sel_len) == 0))) {
+            msgq->idx_r++;
+            return 1;
+        }
+    }
+    for (i = msgq->idx_r + 1; IDX_LT(i, msgq->idx_w); i++) {
+        idx = IDX_MASK(i, msgq->size);
+        if (type== msgq->array[idx].type) {
+            *buffer = msgq->array[idx].buffer;
+            *len = msgq->array[idx].len;
+            if ((selector == NULL) || (sel_len == 0) || ((sel_len <= *len) && (memcmp(selector, *buffer, sel_len) == 0))) {
+                for (j = i + 1; IDX_LT(j, msgq->idx_w); j++) {
+                    msgq->array[IDX_MASK(j - 1, msgq->size)] = msgq->array[IDX_MASK(j, msgq->size)];
+                }
+                msgq->idx_w--;
+                return 1;
+            }
+        }
+    }
+    *buffer = NULL;
+    *len = 0;
+    return 0;
+}
+
+uint8_t eos_msgq_len(EOSMsgQ *msgq) {
+    return (uint8_t)(msgq->idx_w - msgq->idx_r);
+}
+
+void eos_bufq_init(EOSBufQ *bufq, unsigned char **array, uint8_t size) {
+    bufq->idx_r = 0;
+    bufq->idx_w = 0;
+    bufq->size = size;
+    bufq->array = array;
+}
+
+int eos_bufq_push(EOSBufQ *bufq, unsigned char *buffer) {
+    if ((uint8_t)(bufq->idx_w - bufq->idx_r) == bufq->size) return EOS_ERR_FULL;
+
+    bufq->array[IDX_MASK(bufq->idx_w++, bufq->size)] = buffer;
+    return EOS_OK;
+}
+
+unsigned char *eos_bufq_pop(EOSBufQ *bufq) {
+    if (bufq->idx_r == bufq->idx_w) return NULL;
+
+    return bufq->array[IDX_MASK(bufq->idx_r++, bufq->size)];
+}
+
+uint8_t eos_bufq_len(EOSBufQ *bufq) {
+    return (uint8_t)(bufq->idx_w - bufq->idx_r);
+}
diff --git a/fw/fe310/eos/msgq.h b/fw/fe310/eos/msgq.h
new file mode 100644
index 0000000..9f2ca81
--- /dev/null
+++ b/fw/fe310/eos/msgq.h
@@ -0,0 +1,32 @@
+#include <stdint.h>
+
+typedef struct EOSMsgItem {
+    unsigned char type;
+    unsigned char *buffer;
+    uint16_t len;
+} EOSMsgItem;
+
+typedef struct EOSMsgQ {
+    uint8_t idx_r;
+    uint8_t idx_w;
+    uint8_t size;
+    EOSMsgItem *array;
+} EOSMsgQ;
+
+void eos_msgq_init(EOSMsgQ *msgq, EOSMsgItem *array, uint8_t size);
+int eos_msgq_push(EOSMsgQ *msgq, unsigned char type, unsigned char *buffer, uint16_t len);
+void eos_msgq_pop(EOSMsgQ *msgq, unsigned char *type, unsigned char **buffer, uint16_t *len);
+int eos_msgq_get(EOSMsgQ *msgq, unsigned char type, unsigned char *selector, uint16_t sel_len, unsigned char **buffer, uint16_t *len);
+uint8_t eos_msgq_len(EOSMsgQ *msgq);
+
+typedef struct EOSBufQ {
+    uint8_t idx_r;
+    uint8_t idx_w;
+    uint8_t size;
+    unsigned char **array;
+} EOSBufQ;
+
+void eos_bufq_init(EOSBufQ *bufq, unsigned char **array, uint8_t size);
+int eos_bufq_push(EOSBufQ *bufq, unsigned char *buffer);
+unsigned char *eos_bufq_pop(EOSBufQ *bufq);
+uint8_t eos_bufq_len(EOSBufQ *bufq);
diff --git a/fw/fe310/eos/msgq_def.h b/fw/fe310/eos/msgq_def.h
new file mode 100644
index 0000000..2ad5fc5
--- /dev/null
+++ b/fw/fe310/eos/msgq_def.h
@@ -0,0 +1,10 @@
+/* asm */
+#define MSGQ_OFF_IDXR       0
+#define MSGQ_OFF_IDXW       1
+#define MSGQ_OFF_SIZE       2
+#define MSGQ_OFF_ARRAY      4
+
+#define MSGQ_ITEM_OFF_TYPE  0
+#define MSGQ_ITEM_OFF_BUF   4
+#define MSGQ_ITEM_OFF_SIZE  8
+#define MSGQ_ITEM_SIZE      12
diff --git a/fw/fe310/eos/net.c b/fw/fe310/eos/net.c
new file mode 100644
index 0000000..297e8f0
--- /dev/null
+++ b/fw/fe310/eos/net.c
@@ -0,0 +1,496 @@
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "encoding.h"
+#include "platform.h"
+
+#include "eos.h"
+#include "msgq.h"
+#include "event.h"
+#include "interrupt.h"
+#include "timer.h"
+#include "power.h"
+
+#include "spi.h"
+#include "spi_def.h"
+
+#include "net.h"
+#include "net_def.h"
+#include "irq_def.h"
+
+#define MIN(X, Y)               (((X) < (Y)) ? (X) : (Y))
+#define MAX(X, Y)               (((X) > (Y)) ? (X) : (Y))
+
+static EOSBufQ net_buf_q;
+static unsigned char *net_bufq_array[EOS_NET_SIZE_BUFQ];
+static unsigned char net_bufq_buffer[EOS_NET_SIZE_BUFQ][EOS_NET_SIZE_BUF];
+
+static EOSMsgQ net_send_q;
+static EOSMsgItem net_sndq_array[EOS_NET_SIZE_BUFQ];
+
+static volatile uint8_t net_state_flags = 0;
+static unsigned char net_state_type = 0;
+static uint32_t net_state_len_tx = 0;
+static uint32_t net_state_len_rx = 0;
+unsigned char *net_state_buf = NULL;
+
+static uint8_t net_state_next_cnt = 0;
+static unsigned char *net_state_next_buf = NULL;
+
+static eos_evt_handler_t net_handler[EOS_NET_MAX_MTYPE];
+static uint16_t net_wrapper_acq[EOS_EVT_MAX_EVT];
+static uint16_t net_flags_acq[EOS_EVT_MAX_EVT];
+
+static int net_xchg_sleep(void) {
+    int i;
+    int rv = EOS_OK;
+    volatile uint32_t x = 0;
+
+    net_state_flags &= ~NET_STATE_FLAG_CTS;
+
+    SPI1_REG(SPI_REG_CSMODE) = SPI_CSMODE_HOLD;
+
+    SPI1_REG(SPI_REG_TXFIFO) = 0xff;
+    while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+    if (x & 0xFF) rv = EOS_ERR_BUSY;
+
+    for (i=0; i<7; i++) {
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = 0;
+        while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+    }
+
+    SPI1_REG(SPI_REG_CSMODE) = SPI_CSMODE_AUTO;
+
+    return rv;
+}
+
+static void net_xchg_wake(void) {
+    int i;
+    volatile uint32_t x = 0;
+
+    SPI1_REG(SPI_REG_CSMODE) = SPI_CSMODE_HOLD;
+
+    for (i=0; i<8; i++) {
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = 0;
+        while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+    }
+
+    SPI1_REG(SPI_REG_CSMODE) = SPI_CSMODE_AUTO;
+}
+
+static void net_xchg_reset(void) {
+    net_state_flags &= ~NET_STATE_FLAG_CTS;
+    net_state_flags |= (NET_STATE_FLAG_RST | NET_STATE_FLAG_XCHG);
+
+    SPI1_REG(SPI_REG_CSMODE) = SPI_CSMODE_HOLD;
+    SPI1_REG(SPI_REG_TXFIFO) = 0;
+    SPI1_REG(SPI_REG_RXCTRL) = SPI_RXWM(0);
+    SPI1_REG(SPI_REG_IE) = SPI_IP_RXWM;
+}
+
+static void net_xchg_start(unsigned char type, unsigned char *buffer, uint16_t len) {
+    net_state_flags &= ~NET_STATE_FLAG_CTS;
+    net_state_flags |= (NET_STATE_FLAG_INIT | NET_STATE_FLAG_XCHG);
+
+    if (net_state_next_cnt && (net_state_next_buf == NULL)) type |= EOS_NET_MTYPE_FLAG_ONEW;
+    if (type & EOS_NET_MTYPE_FLAG_ONEW) net_state_flags |= NET_STATE_FLAG_ONEW;
+
+    net_state_type = type;
+    net_state_len_tx = len;
+    net_state_len_rx = 0;
+    net_state_buf = buffer;
+
+    SPI1_REG(SPI_REG_CSMODE) = SPI_CSMODE_HOLD;
+    SPI1_REG(SPI_REG_TXFIFO) = type;
+    SPI1_REG(SPI_REG_TXFIFO) = (len >> 8) & 0xFF;
+    SPI1_REG(SPI_REG_TXFIFO) = (len & 0xFF);
+    SPI1_REG(SPI_REG_RXCTRL) = SPI_RXWM(2);
+    SPI1_REG(SPI_REG_IE) = SPI_IP_RXWM;
+}
+
+static int net_xchg_next(unsigned char *_buffer) {
+    unsigned char type;
+    unsigned char *buffer = NULL;
+    uint16_t len;
+
+    eos_msgq_pop(&net_send_q, &type, &buffer, &len);
+    if (type) {
+        net_xchg_start(type, buffer, len);
+    } else if (net_state_flags & NET_STATE_FLAG_RTS) {
+        if (_buffer == NULL) _buffer = eos_bufq_pop(&net_buf_q);
+        if (_buffer) {
+            net_xchg_start(0, _buffer, 0);
+            return 0;
+        }
+    }
+    return 1;
+}
+
+static void net_handle_xchg(void) {
+    volatile uint32_t r1, r2, r3;
+    uint32_t len;
+
+    if (net_state_flags & NET_STATE_FLAG_RST) {
+        net_state_flags &= ~(NET_STATE_FLAG_RST | NET_STATE_FLAG_XCHG);
+
+        r1 = SPI1_REG(SPI_REG_RXFIFO);
+        SPI1_REG(SPI_REG_CSMODE) = SPI_CSMODE_AUTO;
+        SPI1_REG(SPI_REG_IE) = 0x0;
+
+        return;
+    } else if (net_state_flags & NET_STATE_FLAG_INIT) {
+        net_state_flags &= ~NET_STATE_FLAG_INIT;
+
+        r1 = SPI1_REG(SPI_REG_RXFIFO);
+        r2 = SPI1_REG(SPI_REG_RXFIFO);
+        r3 = SPI1_REG(SPI_REG_RXFIFO);
+
+        if (net_state_flags & NET_STATE_FLAG_ONEW) {
+            r1 = 0;
+            r2 = 0;
+            r3 = 0;
+        }
+
+        net_state_type    = (r1 & 0xFF);
+        net_state_len_rx  = (r2 & 0xFF) << 8;
+        net_state_len_rx |= (r3 & 0xFF);
+        len = MAX(net_state_len_tx, net_state_len_rx);
+
+        // esp32 bug workaraund
+        if (len < 5) {
+            len = 5;
+        } else if ((len + 3) % 4 != 0) {
+            len = ((len + 3)/4 + 1) * 4 - 3;
+        }
+
+        if (len > EOS_NET_SIZE_BUF) {
+            net_state_flags &= ~NET_STATE_FLAG_XCHG;
+            SPI1_REG(SPI_REG_CSMODE) = SPI_CSMODE_AUTO;
+            SPI1_REG(SPI_REG_IE) = 0x0;
+            return;
+        }
+
+        _eos_spi_xchg_init(net_state_buf, len, 0);
+        SPI1_REG(SPI_REG_TXCTRL) = SPI_TXWM(SPI_SIZE_WM);
+        SPI1_REG(SPI_REG_IE) = SPI_IP_TXWM;
+        return;
+    }
+
+    eos_spi_handle_xchg();
+    if (SPI1_REG(SPI_REG_CSMODE) == SPI_CSMODE_AUTO) {  // exchange done
+        if (net_state_type) {
+            int r = eos_evtq_push_isr(EOS_EVT_NET | net_state_type, net_state_buf, net_state_len_rx);
+            if (r) eos_bufq_push(&net_buf_q, net_state_buf);
+        } else if (((net_state_flags & NET_STATE_FLAG_ONEW) || net_state_next_cnt) && (net_state_next_buf == NULL)) {
+            net_state_next_buf = net_state_buf;
+            net_state_flags &= ~NET_STATE_FLAG_ONEW;
+        } else {
+            eos_bufq_push(&net_buf_q, net_state_buf);
+        }
+        net_state_flags &= ~NET_STATE_FLAG_XCHG;
+    }
+}
+
+static void net_handle_cts(void) {
+    GPIO_REG(GPIO_RISE_IP) = (1 << NET_PIN_CTS);
+    net_state_flags |= NET_STATE_FLAG_CTS;
+
+    if (net_state_flags & NET_STATE_FLAG_RUN) {
+        net_xchg_next(NULL);
+    }
+}
+
+static void net_handle_rts(void) {
+    uint32_t rts_offset = (1 << NET_PIN_RTS);
+    if (GPIO_REG(GPIO_RISE_IP) & rts_offset) {
+        GPIO_REG(GPIO_RISE_IP) = rts_offset;
+        net_state_flags |= NET_STATE_FLAG_RTS;
+        if ((net_state_flags & NET_STATE_FLAG_RUN) && (net_state_flags & NET_STATE_FLAG_CTS)) net_xchg_reset();
+    } else if (GPIO_REG(GPIO_FALL_IP) & rts_offset) {
+        GPIO_REG(GPIO_FALL_IP) = rts_offset;
+        net_state_flags &= ~NET_STATE_FLAG_RTS;
+    }
+}
+
+static void net_handle_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
+    unsigned char idx = (type & ~EOS_EVT_MASK) - 1;
+
+    if (idx < EOS_NET_MAX_MTYPE) {
+        net_handler[idx](type, buffer, len);
+    } else {
+        eos_net_bad_handler(type, buffer, len);
+    }
+}
+
+static int net_acquire(unsigned char reserved) {
+    int ret = 0;
+
+    if (reserved) {
+        while (!ret) {
+            clear_csr(mstatus, MSTATUS_MIE);
+            if (net_state_next_buf) {
+                ret = 1;
+                net_state_next_cnt--;
+            } else {
+                asm volatile ("wfi");
+            }
+            set_csr(mstatus, MSTATUS_MIE);
+        }
+    } else {
+        clear_csr(mstatus, MSTATUS_MIE);
+        if (net_state_next_buf == NULL) net_state_next_buf = eos_bufq_pop(&net_buf_q);
+        ret = (net_state_next_buf != NULL);
+        if (!ret) net_state_next_cnt++;
+        set_csr(mstatus, MSTATUS_MIE);
+    }
+    return ret;
+}
+
+static void evt_handler_wrapper(unsigned char type, unsigned char *buffer, uint16_t len, unsigned char idx, uint16_t flag) {
+    int ok;
+
+    ok = net_acquire(net_wrapper_acq[idx] & flag);
+    if (ok) {
+        eos_evtq_get_handler(type)(type, buffer, len);
+        eos_net_release();
+        net_wrapper_acq[idx] &= ~flag;
+    } else {
+        net_wrapper_acq[idx] |= flag;
+        eos_evtq_push(type, buffer, len);
+    }
+}
+
+static void evt_handler(unsigned char type, unsigned char *buffer, uint16_t len) {
+    unsigned char idx = ((type & EOS_EVT_MASK) >> 4) - 1;
+    uint16_t flag = (uint16_t)1 << ((type & ~EOS_EVT_MASK) - 1);
+
+    if (idx < EOS_EVT_MAX_EVT) {
+        if (flag & net_flags_acq[idx]) {
+            evt_handler_wrapper(type, buffer, len, idx, flag);
+        } else {
+            eos_evtq_get_handler(type)(type, buffer, len);
+        }
+    } else {
+        eos_evtq_bad_handler(type, buffer, len);
+    }
+}
+
+void eos_net_init(void) {
+    int i;
+
+    eos_msgq_init(&net_send_q, net_sndq_array, EOS_NET_SIZE_BUFQ);
+    eos_bufq_init(&net_buf_q, net_bufq_array, EOS_NET_SIZE_BUFQ);
+    for (i=0; i<EOS_NET_SIZE_BUFQ; i++) {
+        eos_bufq_push(&net_buf_q, net_bufq_buffer[i]);
+    }
+
+    for (i=0; i<EOS_NET_MAX_MTYPE; i++) {
+        net_handler[i] = eos_net_bad_handler;
+    }
+    eos_evtq_set_handler(0, evt_handler);
+    eos_evtq_set_handler(EOS_EVT_NET, net_handle_evt);
+
+    GPIO_REG(GPIO_INPUT_EN)     |=  (1 << NET_PIN_CTS);
+    GPIO_REG(GPIO_OUTPUT_EN)    &= ~(1 << NET_PIN_CTS);
+    GPIO_REG(GPIO_PULLUP_EN)    &= ~(1 << NET_PIN_CTS);
+    GPIO_REG(GPIO_OUTPUT_XOR)   &= ~(1 << NET_PIN_CTS);
+
+    GPIO_REG(GPIO_RISE_IE)      |=  (1 << NET_PIN_CTS);
+    eos_intr_set(INT_GPIO_BASE + NET_PIN_CTS, IRQ_PRIORITY_NET_CTS, net_handle_cts);
+
+    GPIO_REG(GPIO_INPUT_EN)     |=  (1 << NET_PIN_RTS);
+    GPIO_REG(GPIO_OUTPUT_EN)    &= ~(1 << NET_PIN_RTS);
+    GPIO_REG(GPIO_PULLUP_EN)    &= ~(1 << NET_PIN_RTS);
+    GPIO_REG(GPIO_OUTPUT_XOR)   &= ~(1 << NET_PIN_RTS);
+
+    GPIO_REG(GPIO_RISE_IE)      |=  (1 << NET_PIN_RTS);
+    GPIO_REG(GPIO_FALL_IE)      |=  (1 << NET_PIN_RTS);
+    eos_intr_set(INT_GPIO_BASE + NET_PIN_RTS, IRQ_PRIORITY_NET_RTS, net_handle_rts);
+}
+
+void eos_net_start(void) {
+    eos_intr_set_handler(INT_SPI1_BASE, net_handle_xchg);
+    SPI1_REG(SPI_REG_SCKDIV) = NET_SPI_DIV;
+    SPI1_REG(SPI_REG_CSID) = NET_SPI_CSID;
+
+    clear_csr(mstatus, MSTATUS_MIE);
+    net_state_flags |= NET_STATE_FLAG_RUN;
+    if (net_state_flags & NET_STATE_FLAG_CTS) {
+        net_xchg_next(NULL);
+    }
+    set_csr(mstatus, MSTATUS_MIE);
+}
+
+void eos_net_stop(void) {
+    uint8_t done = 0;
+
+    clear_csr(mstatus, MSTATUS_MIE);
+    if (net_state_flags & NET_STATE_FLAG_RUN) {
+        net_state_flags &= ~NET_STATE_FLAG_RUN;
+        done = !(net_state_flags & NET_STATE_FLAG_XCHG);
+    } else {
+        done = 1;
+    }
+    set_csr(mstatus, MSTATUS_MIE);
+
+    while (!done) {
+        clear_csr(mstatus, MSTATUS_MIE);
+        done = !(net_state_flags & NET_STATE_FLAG_XCHG);
+        if (!done) asm volatile ("wfi");
+        set_csr(mstatus, MSTATUS_MIE);
+    }
+}
+
+int eos_net_sleep(uint32_t timeout) {
+    volatile uint64_t *mtime = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIME);
+    uint64_t then_ms = timeout + *mtime * 1000 / EOS_TIMER_RTC_FREQ;
+    uint8_t done = 0;
+    int rv = EOS_OK;
+
+    clear_csr(mstatus, MSTATUS_MIE);
+    if (!(net_state_flags & NET_STATE_FLAG_RUN)) rv = EOS_ERR;
+    set_csr(mstatus, MSTATUS_MIE);
+
+    if (rv) return rv;
+
+    do {
+        if (*mtime * 1000 / EOS_TIMER_RTC_FREQ > then_ms) return EOS_ERR_TIMEOUT;
+        clear_csr(mstatus, MSTATUS_MIE);
+        eos_evtq_flush_isr();
+        done = (eos_msgq_len(&net_send_q) == 0);
+        done = done && (!(net_state_flags & NET_STATE_FLAG_RTS) && (net_state_flags & NET_STATE_FLAG_CTS));
+        if (done) done = (net_xchg_sleep() == EOS_OK);
+        if (!done) {
+            asm volatile ("wfi");
+            set_csr(mstatus, MSTATUS_MIE);
+        }
+    } while (!done);
+
+    while (!(GPIO_REG(GPIO_RISE_IP) & (1 << NET_PIN_CTS))) {
+        if (*mtime * 1000 / EOS_TIMER_RTC_FREQ > then_ms) {
+            rv = EOS_ERR_TIMEOUT;
+            break;
+        }
+        asm volatile ("wfi");
+    }
+
+    if (!rv) {
+        GPIO_REG(GPIO_RISE_IP) = (1 << NET_PIN_CTS);
+        net_state_flags &= ~NET_STATE_FLAG_RUN;
+    }
+
+    set_csr(mstatus, MSTATUS_MIE);
+
+    return rv;
+}
+
+int eos_net_wake(uint8_t source) {
+    int rv = EOS_OK;
+
+    clear_csr(mstatus, MSTATUS_MIE);
+    if (net_state_flags & NET_STATE_FLAG_RUN) rv = EOS_ERR;
+    set_csr(mstatus, MSTATUS_MIE);
+
+    if (rv) return rv;
+
+    eos_intr_set_handler(INT_SPI1_BASE, net_handle_xchg);
+    SPI1_REG(SPI_REG_SCKDIV) = NET_SPI_DIV;
+    SPI1_REG(SPI_REG_CSID) = NET_SPI_CSID;
+
+    clear_csr(mstatus, MSTATUS_MIE);
+    net_state_flags |= NET_STATE_FLAG_RUN;
+    if (source) {
+        if (source != EOS_PWR_WAKE_BTN) {
+            net_xchg_wake();
+        }
+        if (!(net_state_flags & NET_STATE_FLAG_CTS)) {
+            while (!(GPIO_REG(GPIO_RISE_IP) & (1 << NET_PIN_CTS))) {
+                asm volatile ("wfi");
+            }
+            GPIO_REG(GPIO_RISE_IP) = (1 << NET_PIN_CTS);
+        }
+        net_xchg_reset();
+        if (GPIO_REG(GPIO_INPUT_VAL) & (1 << NET_PIN_RTS)) net_state_flags |= NET_STATE_FLAG_RTS;
+    }
+    set_csr(mstatus, MSTATUS_MIE);
+
+    return rv;
+}
+
+void eos_net_bad_handler(unsigned char type, unsigned char *buffer, uint16_t len) {
+    eos_evtq_bad_handler(type, buffer, len);
+    if (buffer) eos_net_free(buffer, 0);
+}
+
+void eos_net_set_handler(unsigned char mtype, eos_evt_handler_t handler) {
+    if (handler == NULL) handler = eos_net_bad_handler;
+    if (mtype && (mtype <= EOS_NET_MAX_MTYPE)) net_handler[mtype - 1] = handler;
+}
+
+void eos_net_acquire_for_evt(unsigned char type, char acq) {
+    unsigned char idx = ((type & EOS_EVT_MASK) >> 4) - 1;
+    uint16_t flag = type & ~EOS_EVT_MASK ? (uint16_t)1 << ((type & ~EOS_EVT_MASK) - 1) : 0xFFFF;
+
+    if (idx < EOS_EVT_MAX_EVT) {
+        net_flags_acq[idx] &= ~flag;
+        if (acq) net_flags_acq[idx] |= flag;
+    }
+}
+
+void eos_net_acquire(void) {
+    unsigned char acq = net_acquire(0);
+    if (!acq) net_acquire(1);
+}
+
+void eos_net_release(void) {
+    clear_csr(mstatus, MSTATUS_MIE);
+    if (!net_state_next_cnt && net_state_next_buf) {
+        eos_bufq_push(&net_buf_q, net_state_next_buf);
+        net_state_next_buf = NULL;
+    }
+    set_csr(mstatus, MSTATUS_MIE);
+}
+
+unsigned char *eos_net_alloc(void) {
+    unsigned char *ret = NULL;
+
+    clear_csr(mstatus, MSTATUS_MIE);
+    ret = net_state_next_buf;
+    net_state_next_buf = NULL;
+    set_csr(mstatus, MSTATUS_MIE);
+
+    return ret;
+}
+
+void eos_net_free(unsigned char *buffer, unsigned char more) {
+    uint8_t do_release = 1;
+
+    clear_csr(mstatus, MSTATUS_MIE);
+    if ((more || net_state_next_cnt) && (net_state_next_buf == NULL)) {
+        net_state_next_buf = buffer;
+    } else {
+        if ((net_state_flags & NET_STATE_FLAG_RUN) && (net_state_flags & NET_STATE_FLAG_CTS)) do_release = net_xchg_next(buffer);
+        if (do_release) eos_bufq_push(&net_buf_q, buffer);
+    }
+    set_csr(mstatus, MSTATUS_MIE);
+}
+
+int eos_net_send(unsigned char type, unsigned char *buffer, uint16_t len, unsigned char more) {
+    int rv = EOS_OK;
+
+    if (more) {
+        type |= EOS_NET_MTYPE_FLAG_ONEW;
+    }
+    clear_csr(mstatus, MSTATUS_MIE);
+    if ((net_state_flags & NET_STATE_FLAG_RUN) && (net_state_flags & NET_STATE_FLAG_CTS)) {
+        net_xchg_start(type, buffer, len);
+    } else {
+        rv = eos_msgq_push(&net_send_q, type, buffer, len);
+        if (rv) eos_bufq_push(&net_buf_q, buffer);
+    }
+    set_csr(mstatus, MSTATUS_MIE);
+
+    return rv;
+}
diff --git a/fw/fe310/eos/net.h b/fw/fe310/eos/net.h
new file mode 100644
index 0000000..1aaea1f
--- /dev/null
+++ b/fw/fe310/eos/net.h
@@ -0,0 +1,36 @@
+#include <stdint.h>
+#include "event.h"
+
+/* common */
+#define EOS_NET_SIZE_BUF            1500
+
+#define EOS_NET_MTYPE_SOCK          1
+#define EOS_NET_MTYPE_POWER         4
+
+#define EOS_NET_MTYPE_WIFI          5
+#define EOS_NET_MTYPE_CELL          6
+#define EOS_NET_MTYPE_SIP           7
+#define EOS_NET_MTYPE_APP           8
+
+#define EOS_NET_MAX_MTYPE           8
+
+#define EOS_NET_MTYPE_FLAG_ONEW     0x80
+
+/* fe310 specific */
+#define EOS_NET_SIZE_BUFQ           2
+
+void eos_net_init(void);
+void eos_net_start(void);
+void eos_net_stop(void);
+int eos_net_sleep(uint32_t timeout);
+int eos_net_wake(uint8_t source);
+
+void eos_net_bad_handler(unsigned char type, unsigned char *buffer, uint16_t len);
+void eos_net_set_handler(unsigned char type, eos_evt_handler_t handler);
+void eos_net_acquire_for_evt(unsigned char type, char acq);
+
+void eos_net_acquire(void);
+void eos_net_release(void);
+unsigned char *eos_net_alloc(void);
+void eos_net_free(unsigned char *buffer, unsigned char more);
+int eos_net_send(unsigned char type, unsigned char *buffer, uint16_t len, unsigned char more);
diff --git a/fw/fe310/eos/net_def.h b/fw/fe310/eos/net_def.h
new file mode 100644
index 0000000..9aa25dd
--- /dev/null
+++ b/fw/fe310/eos/net_def.h
@@ -0,0 +1,13 @@
+#define NET_PIN_RTS             20
+#define NET_PIN_CTS             22
+
+#define NET_STATE_FLAG_RUN      0x01
+#define NET_STATE_FLAG_RST      0x02
+#define NET_STATE_FLAG_RTS      0x04
+#define NET_STATE_FLAG_CTS      0x08
+#define NET_STATE_FLAG_INIT     0x10
+#define NET_STATE_FLAG_ONEW     0x20
+#define NET_STATE_FLAG_XCHG     0x40
+
+#define NET_SPI_DIV             16
+#define NET_SPI_CSID            3
diff --git a/fw/fe310/eos/power.c b/fw/fe310/eos/power.c
new file mode 100644
index 0000000..5c874e0
--- /dev/null
+++ b/fw/fe310/eos/power.c
@@ -0,0 +1,111 @@
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "encoding.h"
+#include "platform.h"
+
+#include "eos.h"
+#include "event.h"
+#include "timer.h"
+#include "net.h"
+#include "eve/eve.h"
+
+#include "power.h"
+
+#define PWR_RTC_SCALE   15
+#define PWR_RTC_SFREQ   (EOS_TIMER_RTC_FREQ >> PWR_RTC_SCALE)
+
+static eos_evt_handler_t evt_handler[EOS_PWR_MAX_MTYPE];
+static unsigned char power_btn_down;
+
+static void power_handle_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
+    if ((buffer == NULL) || (len < 1)) {
+        eos_net_bad_handler(type, buffer, len);
+        return;
+    }
+
+    unsigned char mtype = buffer[0];
+    if (mtype < EOS_PWR_MAX_MTYPE) {
+        evt_handler[mtype](type, buffer, len);
+    } else {
+        eos_net_bad_handler(type, buffer, len);
+    }
+}
+
+static void power_handle_btn(unsigned char type, unsigned char *buffer, uint16_t len) {
+    unsigned char level = buffer[1];
+
+    eos_net_free(buffer, 0);
+    if (!level) {
+        power_btn_down = 1;
+        return;
+    }
+    if (!power_btn_down) return;
+
+    eos_power_sleep();
+}
+
+void eos_power_init(void) {
+    int i;
+
+    for (i=0; i<EOS_PWR_MAX_MTYPE; i++) {
+        evt_handler[i] = eos_net_bad_handler;
+    }
+    eos_net_set_handler(EOS_NET_MTYPE_POWER, power_handle_evt);
+    eos_power_set_handler(EOS_PWR_MTYPE_BUTTON, power_handle_btn);
+
+    AON_REG(AON_PMUKEY) = 0x51F15E;
+    AON_REG(AON_PMUIE) = 0x5;
+
+    AON_REG(AON_RTCCMP) = 0xFFFFFFFF;
+    AON_REG(AON_RTCCFG) = PWR_RTC_SCALE;
+    AON_REG(AON_RTCHI) = 0;
+    AON_REG(AON_RTCLO) = 0;
+}
+
+uint8_t eos_power_wakeup_cause(void) {
+    return AON_REG(AON_PMUCAUSE) & 0xff;
+}
+
+uint8_t eos_power_reset_cause(void) {
+    return (AON_REG(AON_PMUCAUSE) >> 8) & 0xff;
+}
+
+void eos_power_sleep(void) {
+    eos_spi_dev_start(EOS_DEV_DISP);
+    eve_sleep();
+    eos_spi_dev_stop();
+    eos_net_sleep(1000);
+
+    AON_REG(AON_PMUKEY) = 0x51F15E;
+    AON_REG(AON_PMUSLEEP) = 1;
+}
+
+void eos_power_wake_at(uint32_t msec) {
+    uint32_t pmuie;
+
+    AON_REG(AON_RTCCFG) |= AON_RTCCFG_ENALWAYS;
+    AON_REG(AON_RTCCMP) = msec * PWR_RTC_SFREQ / 1000;
+
+    pmuie = AON_REG(AON_PMUIE) | 0x2;
+    AON_REG(AON_PMUKEY) = 0x51F15E;
+    AON_REG(AON_PMUIE) = pmuie;
+}
+
+void eos_power_wake_disable(void) {
+    uint32_t pmuie;
+
+    AON_REG(AON_RTCCMP) = 0xFFFFFFFF;
+    AON_REG(AON_RTCCFG) &= ~AON_RTCCFG_ENALWAYS;
+    AON_REG(AON_RTCHI) = 0;
+    AON_REG(AON_RTCLO) = 0;
+
+    pmuie = AON_REG(AON_PMUIE) & ~0x2;
+    AON_REG(AON_PMUKEY) = 0x51F15E;
+    AON_REG(AON_PMUIE) = pmuie;
+}
+
+void eos_power_set_handler(unsigned char mtype, eos_evt_handler_t handler) {
+    if (handler == NULL) handler = eos_net_bad_handler;
+    if (mtype < EOS_PWR_MAX_MTYPE) evt_handler[mtype] = handler;
+}
diff --git a/fw/fe310/eos/power.h b/fw/fe310/eos/power.h
new file mode 100644
index 0000000..466573f
--- /dev/null
+++ b/fw/fe310/eos/power.h
@@ -0,0 +1,22 @@
+#include <stdint.h>
+#include "event.h"
+
+#define EOS_PWR_MTYPE_BUTTON    0
+
+#define EOS_PWR_MAX_MTYPE       2
+
+#define EOS_PWR_WAKE_RST        0
+#define EOS_PWR_WAKE_RTC        1
+#define EOS_PWR_WAKE_BTN        2
+
+#define EOS_PWR_RST_PWRON       0
+#define EOS_PWR_RST_EXT         1
+#define EOS_PWR_RST_WDOG        2
+
+void eos_power_init(void);
+uint8_t eos_power_wakeup_cause(void);
+uint8_t eos_power_reset_cause(void);
+void eos_power_sleep(void);
+void eos_power_wake_at(uint32_t msec);
+void eos_power_wake_disable(void);
+void eos_power_set_handler(unsigned char mtype, eos_evt_handler_t handler);
\ No newline at end of file
diff --git a/fw/fe310/eos/sock.c b/fw/fe310/eos/sock.c
new file mode 100644
index 0000000..720e620
--- /dev/null
+++ b/fw/fe310/eos/sock.c
@@ -0,0 +1,96 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "eos.h"
+#include "event.h"
+#include "net.h"
+
+#include "sock.h"
+
+static eos_evt_handler_t evt_handler[EOS_SOCK_MAX_SOCK];
+
+static void sock_handle_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
+    unsigned char sock;
+    if ((buffer == NULL) || (len < 2)) {
+        eos_net_bad_handler(type, buffer, len);
+        return;
+    }
+
+    sock = buffer[1];
+    if ((sock == 0) || (sock > EOS_SOCK_MAX_SOCK)) {
+        eos_net_bad_handler(type, buffer, len);
+        return;
+    }
+
+    sock--;
+    switch(buffer[0]) {
+        case EOS_SOCK_MTYPE_PKT:
+            evt_handler[sock](type, buffer, len);
+            break;
+        default:
+            eos_net_bad_handler(type, buffer, len);
+            break;
+    }
+}
+
+void eos_sock_init(void) {
+    int i;
+
+    for (i=0; i<EOS_SOCK_MAX_SOCK; i++) {
+        evt_handler[i] = eos_net_bad_handler;
+    }
+    eos_net_set_handler(EOS_NET_MTYPE_SOCK, sock_handle_evt);
+}
+
+void eos_sock_set_handler(unsigned char sock, eos_evt_handler_t handler) {
+    if (handler == NULL) handler = eos_net_bad_handler;
+    if (sock && (sock <= EOS_SOCK_MAX_SOCK)) evt_handler[sock - 1] = handler;
+}
+
+int eos_sock_open_udp(void) {
+    unsigned char type = EOS_SOCK_MTYPE_OPEN_DGRAM;
+    unsigned char *buffer = eos_net_alloc();
+    uint16_t buf_size;
+    int rv, sock;
+
+    buffer[0] = type;
+    rv = eos_net_send(EOS_NET_MTYPE_SOCK, buffer, 1, 0);
+    if (rv) return rv;
+
+    eos_evtq_wait(EOS_NET_MTYPE_SOCK, &type, 1, &buffer, &buf_size);
+    if (buf_size < 2) {
+        eos_net_free(buffer, 0);
+        return EOS_ERR_NET;
+    }
+
+    sock = buffer[1];
+    eos_net_free(buffer, 1);
+
+    if (sock == 0) return EOS_ERR_NET;
+    return sock;
+}
+
+void eos_sock_close(unsigned char sock) {
+    unsigned char *buffer = eos_net_alloc();
+    buffer[0] = EOS_SOCK_MTYPE_CLOSE;
+    buffer[1] = sock;
+    eos_net_send(EOS_NET_MTYPE_SOCK, buffer, 2, 1);
+}
+
+int eos_sock_sendto(unsigned char sock, unsigned char *buffer, uint16_t size, unsigned char more, EOSNetAddr *addr) {
+    unsigned char type = EOS_NET_MTYPE_SOCK;
+
+    buffer[0] = EOS_SOCK_MTYPE_PKT;
+    buffer[1] = sock;
+    memcpy(buffer+2, addr->host, sizeof(addr->host));
+    memcpy(buffer+2+sizeof(addr->host), &addr->port, sizeof(addr->port));
+    return eos_net_send(type, buffer, size, more);
+}
+
+void eos_sock_getfrom(unsigned char *buffer, EOSNetAddr *addr) {
+    memcpy(addr->host, buffer+2, sizeof(addr->host));
+    memcpy(&addr->port, buffer+2+sizeof(addr->host), sizeof(addr->port));
+}
+
+
diff --git a/fw/fe310/eos/sock.h b/fw/fe310/eos/sock.h
new file mode 100644
index 0000000..d647381
--- /dev/null
+++ b/fw/fe310/eos/sock.h
@@ -0,0 +1,25 @@
+#include <stdint.h>
+#include "event.h"
+
+#define EOS_SOCK_MTYPE_PKT          0
+#define EOS_SOCK_MTYPE_OPEN_DGRAM   1
+#define EOS_SOCK_MTYPE_CLOSE        127
+
+#define EOS_SOCK_MAX_SOCK           2
+
+#define EOS_SOCK_SIZE_UDP_HDR       8
+
+#define EOS_IPv4_ADDR_SIZE          4
+
+typedef struct EOSNetAddr {
+    unsigned char host[EOS_IPv4_ADDR_SIZE];
+    uint16_t port;
+} EOSNetAddr;
+
+void eos_sock_init(void);
+void eos_sock_set_handler(unsigned char sock, eos_evt_handler_t handler);
+
+int eos_sock_open_udp(void);
+void eos_sock_close(unsigned char sock);
+int eos_sock_sendto(unsigned char sock, unsigned char *buffer, uint16_t size, unsigned char more, EOSNetAddr *addr);
+void eos_sock_getfrom(unsigned char *buffer, EOSNetAddr *addr);
diff --git a/fw/fe310/eos/spi.c b/fw/fe310/eos/spi.c
new file mode 100644
index 0000000..fb47313
--- /dev/null
+++ b/fw/fe310/eos/spi.c
@@ -0,0 +1,330 @@
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "encoding.h"
+#include "platform.h"
+
+#include "eos.h"
+#include "msgq.h"
+#include "interrupt.h"
+#include "event.h"
+
+#include "net.h"
+#include "spi.h"
+#include "spi_def.h"
+#include "irq_def.h"
+
+#define MIN(X, Y)               (((X) < (Y)) ? (X) : (Y))
+#define MAX(X, Y)               (((X) > (Y)) ? (X) : (Y))
+#define SPI_IOF_MASK            (((uint32_t)1 << IOF_SPI1_SCK) | ((uint32_t)1 << IOF_SPI1_MOSI) | ((uint32_t)1 << IOF_SPI1_MISO)) | ((uint32_t)1 << IOF_SPI1_SS0) | ((uint32_t)1 << IOF_SPI1_SS2) | ((uint32_t)1 << IOF_SPI1_SS3)
+
+static uint8_t spi_dev;
+static uint8_t spi_dev_cs_pin;
+static volatile uint8_t spi_state_flags;
+static unsigned char spi_in_xchg;
+
+static uint32_t spi_state_len = 0;
+static uint32_t spi_state_idx_tx = 0;
+static uint32_t spi_state_idx_rx = 0;
+static unsigned char *spi_state_buf = NULL;
+
+static eos_evt_handler_t evt_handler[EOS_SPI_MAX_DEV];
+
+static void spi_handle_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
+    unsigned char idx = (type & ~EOS_EVT_MASK) - 1;
+    if (idx < EOS_SPI_MAX_DEV) {
+        evt_handler[idx](type, buffer, len);
+    } else {
+        eos_evtq_bad_handler(type, buffer, len);
+    }
+}
+
+void eos_spi_init(void) {
+    int i;
+
+    for (i=0; i<EOS_SPI_MAX_DEV; i++) {
+        evt_handler[i] = eos_evtq_bad_handler;
+    }
+    eos_evtq_set_handler(EOS_EVT_SPI, spi_handle_evt);
+    eos_intr_set(INT_SPI1_BASE, IRQ_PRIORITY_SPI_XCHG, NULL);
+
+    SPI1_REG(SPI_REG_SCKMODE) = SPI_MODE0;
+    SPI1_REG(SPI_REG_FMT) = SPI_FMT_PROTO(SPI_PROTO_S) |
+      SPI_FMT_ENDIAN(SPI_ENDIAN_MSB) |
+      SPI_FMT_DIR(SPI_DIR_RX) |
+      SPI_FMT_LEN(8);
+
+    GPIO_REG(GPIO_IOF_SEL) &= ~SPI_IOF_MASK;
+    GPIO_REG(GPIO_IOF_EN) |= SPI_IOF_MASK;
+
+    // There is no way here to change the CS polarity.
+    // SPI1_REG(SPI_REG_CSDEF) = 0xFFFF;
+}
+
+void eos_spi_start(unsigned char dev, uint32_t div, uint32_t csid, uint8_t pin) {
+    spi_dev = dev;
+    spi_state_flags = 0;
+    SPI1_REG(SPI_REG_SCKDIV) = div;
+    SPI1_REG(SPI_REG_CSID) = csid;
+    if (csid != SPI_CSID_NONE) {
+        SPI1_REG(SPI_REG_CSMODE) = SPI_CSMODE_AUTO;
+    } else {
+        SPI1_REG(SPI_REG_CSMODE) = SPI_CSMODE_OFF;
+        spi_dev_cs_pin = pin;
+    }
+    eos_intr_set_handler(INT_SPI1_BASE, eos_spi_handle_xchg);
+}
+
+void eos_spi_stop(void) {
+    eos_spi_flush();
+    spi_dev = 0;
+}
+
+void eos_spi_set_handler(unsigned char dev, eos_evt_handler_t handler) {
+    if (handler == NULL) handler = eos_evtq_bad_handler;
+    if (dev && (dev <= EOS_SPI_MAX_DEV)) evt_handler[dev - 1] = handler;
+}
+
+void _eos_spi_xchg_init(unsigned char *buffer, uint16_t len, uint8_t flags) {
+    spi_state_flags &= 0xF0;
+    spi_state_flags |= (SPI_FLAG_XCHG | flags);
+    spi_state_buf = buffer;
+    spi_state_len = len;
+    spi_state_idx_tx = 0;
+    spi_state_idx_rx = 0;
+}
+
+static void spi_xchg_finish(void) {
+    uint8_t done = 0;
+
+    while (!done) {
+        clear_csr(mstatus, MSTATUS_MIE);
+        done = !(spi_state_flags & SPI_FLAG_XCHG);
+        if (!done) asm volatile ("wfi");
+        set_csr(mstatus, MSTATUS_MIE);
+    }
+    spi_in_xchg = 0;
+}
+
+void eos_spi_xchg(unsigned char *buffer, uint16_t len, uint8_t flags) {
+    if (spi_in_xchg) spi_xchg_finish();
+
+    spi_in_xchg=1;
+    _eos_spi_xchg_init(buffer, len, flags);
+
+    eos_spi_cs_set();
+    SPI1_REG(SPI_REG_TXCTRL) = SPI_TXWM(SPI_SIZE_WM);
+    SPI1_REG(SPI_REG_IE) = SPI_IP_TXWM;
+}
+
+void eos_spi_handle_xchg(void) {
+    int i;
+    uint16_t sz_chunk = MIN(spi_state_len - spi_state_idx_tx, SPI_SIZE_CHUNK);
+
+    for (i=0; i<sz_chunk; i++) {
+        volatile uint32_t x = SPI1_REG(SPI_REG_TXFIFO);
+        if (x & SPI_TXFIFO_FULL) break;
+        SPI1_REG(SPI_REG_TXFIFO) = spi_state_buf[spi_state_idx_tx+i];
+    }
+    spi_state_idx_tx += i;
+
+    for (i=0; i<spi_state_idx_tx - spi_state_idx_rx; i++) {
+        volatile uint32_t x = SPI1_REG(SPI_REG_RXFIFO);
+        if (x & SPI_RXFIFO_EMPTY) break;
+        spi_state_buf[spi_state_idx_rx+i] = x & 0xFF;
+    }
+    spi_state_idx_rx += i;
+
+    if (spi_state_idx_tx == spi_state_len) {
+        if ((spi_state_idx_rx == spi_state_len) || (spi_state_flags & EOS_SPI_FLAG_TX)) {
+            spi_state_flags &= ~SPI_FLAG_XCHG;
+            if (!(spi_state_flags & EOS_SPI_FLAG_MORE)) eos_spi_cs_clear();
+            SPI1_REG(SPI_REG_IE) = 0x0;
+            if (spi_dev) eos_evtq_push_isr(EOS_EVT_SPI | spi_dev, spi_state_buf, spi_state_len);
+        } else {
+            SPI1_REG(SPI_REG_RXCTRL) = SPI_RXWM(MIN(spi_state_len - spi_state_idx_rx - 1, SPI_SIZE_WM - 1));
+            SPI1_REG(SPI_REG_IE) = SPI_IP_RXWM;
+        }
+    }
+}
+
+void eos_spi_cs_set(void) {
+	/* cs low */
+    if (SPI1_REG(SPI_REG_CSMODE) == SPI_CSMODE_OFF) {
+        GPIO_REG(GPIO_OUTPUT_VAL) &= ~(1 << spi_dev_cs_pin);
+    } else {
+        SPI1_REG(SPI_REG_CSMODE) = SPI_CSMODE_HOLD;
+    }
+}
+
+void eos_spi_cs_clear(void) {
+	/* cs high */
+    if (SPI1_REG(SPI_REG_CSMODE) == SPI_CSMODE_OFF) {
+        GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << spi_dev_cs_pin);
+    } else {
+        SPI1_REG(SPI_REG_CSMODE) = SPI_CSMODE_AUTO;
+    }
+}
+
+uint8_t eos_spi_xchg8(uint8_t data, uint8_t flags) {
+    volatile uint32_t x = 0;
+    uint8_t rx = !(flags & EOS_SPI_FLAG_TX);
+
+    spi_state_flags &= 0xF0;
+    spi_state_flags |= flags;
+
+    while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+    SPI1_REG(SPI_REG_TXFIFO) = data;
+
+    if (rx) {
+        while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+    }
+
+    return x & 0xFF;
+}
+
+uint16_t eos_spi_xchg16(uint16_t data, uint8_t flags) {
+    volatile uint32_t x = 0;
+    uint8_t rx = !(flags & EOS_SPI_FLAG_TX);
+    uint16_t r = 0;
+
+    spi_state_flags &= 0xF0;
+    spi_state_flags |= flags;
+
+    if (flags & EOS_SPI_FLAG_BSWAP) {
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0x00FF);
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0xFF00) >> 8;
+    } else {
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0xFF00) >> 8;
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0x00FF);
+    }
+
+    if (rx) {
+        if (flags & EOS_SPI_FLAG_BSWAP) {
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF);
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF) << 8;
+        } else {
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF) << 8;
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF);
+        }
+    }
+
+    return r;
+}
+
+uint32_t eos_spi_xchg24(uint32_t data, uint8_t flags) {
+    volatile uint32_t x = 0;
+    uint8_t rx = !(flags & EOS_SPI_FLAG_TX);
+    uint32_t r = 0;
+
+    spi_state_flags &= 0xF0;
+    spi_state_flags |= flags;
+
+    if (flags & EOS_SPI_FLAG_BSWAP) {
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0x000000FF);
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0x0000FF00) >> 8;
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0x00FF0000) >> 16;
+    } else {
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0x00FF0000) >> 16;
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0x0000FF00) >> 8;
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0x000000FF);
+    }
+
+    if (rx) {
+        if (flags & EOS_SPI_FLAG_BSWAP) {
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF);
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF) << 8;
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF) << 16;
+        } else {
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF) << 16;
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF) << 8;
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF);
+        }
+    }
+
+    return r;
+}
+
+uint32_t eos_spi_xchg32(uint32_t data, uint8_t flags) {
+    volatile uint32_t x = 0;
+    uint8_t rx = !(flags & EOS_SPI_FLAG_TX);
+    uint32_t r = 0;
+
+    spi_state_flags &= 0xF0;
+    spi_state_flags |= flags;
+
+    if (flags & EOS_SPI_FLAG_BSWAP) {
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0x000000FF);
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0x0000FF00) >> 8;
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0x00FF0000) >> 16;
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0xFF000000) >> 24;
+    } else {
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0xFF000000) >> 24;
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0x00FF0000) >> 16;
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0x0000FF00) >> 8;
+        while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL);
+        SPI1_REG(SPI_REG_TXFIFO) = (data & 0x000000FF);
+    }
+
+    if (rx) {
+        if (flags & EOS_SPI_FLAG_BSWAP) {
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF);
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF) << 8;
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF) << 16;
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF) << 24;
+        } else {
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF) << 24;
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF) << 16;
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF) << 8;
+            while ((x = SPI1_REG(SPI_REG_RXFIFO)) & SPI_RXFIFO_EMPTY);
+            r |= (x & 0xFF);
+        }
+    }
+
+    return r;
+}
+
+void eos_spi_flush(void) {
+    volatile uint32_t x = 0;
+
+    if (spi_in_xchg) spi_xchg_finish();
+
+    SPI1_REG(SPI_REG_TXCTRL) = SPI_TXWM(1);
+    while (!x) {
+        if (SPI1_REG(SPI_REG_IP) & SPI_IP_TXWM) x = SPI1_REG(SPI_REG_RXFIFO) & SPI_RXFIFO_EMPTY;
+    }
+}
diff --git a/fw/fe310/eos/spi.h b/fw/fe310/eos/spi.h
new file mode 100644
index 0000000..b291ad3
--- /dev/null
+++ b/fw/fe310/eos/spi.h
@@ -0,0 +1,26 @@
+#include <stdint.h>
+#include "event.h"
+#include "spi_dev.h"
+
+#define EOS_SPI_MAX_DEV     EOS_DEV_MAX_DEV
+
+#define EOS_SPI_FLAG_TX     0x01
+#define EOS_SPI_FLAG_MORE   0x02
+#define EOS_SPI_FLAG_BSWAP  0x04
+
+void eos_spi_init(void);
+void eos_spi_start(unsigned char dev, uint32_t div, uint32_t csid, uint8_t pin);
+void eos_spi_stop(void);
+void eos_spi_set_handler(unsigned char dev, eos_evt_handler_t handler);
+
+void _eos_spi_xchg_init(unsigned char *buffer, uint16_t len, uint8_t flags);
+void eos_spi_xchg(unsigned char *buffer, uint16_t len, uint8_t flags);
+void eos_spi_handle_xchg(void);
+
+void eos_spi_cs_set(void);
+void eos_spi_cs_clear(void);
+uint8_t eos_spi_xchg8(uint8_t data, uint8_t flags);
+uint16_t eos_spi_xchg16(uint16_t data, uint8_t flags);
+uint32_t eos_spi_xchg24(uint32_t data, uint8_t flags);
+uint32_t eos_spi_xchg32(uint32_t data, uint8_t flags);
+void eos_spi_flush(void);
diff --git a/fw/fe310/eos/spi_def.h b/fw/fe310/eos/spi_def.h
new file mode 100644
index 0000000..06f7251
--- /dev/null
+++ b/fw/fe310/eos/spi_def.h
@@ -0,0 +1,12 @@
+#define SPI_MODE0               0x00
+#define SPI_MODE1               0x01
+#define SPI_MODE2               0x02
+#define SPI_MODE3               0x03
+
+/* DO NOT TOUCH THEESE */
+#define SPI_SIZE_CHUNK          4
+#define SPI_SIZE_WM             2
+
+#define SPI_FLAG_XCHG           0x10
+
+#define SPI_CSID_NONE           1
\ No newline at end of file
diff --git a/fw/fe310/eos/spi_dev.c b/fw/fe310/eos/spi_dev.c
new file mode 100644
index 0000000..aed26bc
--- /dev/null
+++ b/fw/fe310/eos/spi_dev.c
@@ -0,0 +1,59 @@
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "encoding.h"
+#include "platform.h"
+
+#include "spi.h"
+#include "net.h"
+
+#include "spi_def.h"
+#include "spi_dev.h"
+
+
+#define SPI_DIV_DISP        16
+#define SPI_DIV_CARD        16
+#define SPI_DIV_CAM         16
+
+#define SPI_CSID_DISP       2
+#define SPI_CSID_CARD       0
+
+#define SPI_CSPIN_CAM       23
+
+static uint16_t spi_dev_div[EOS_DEV_MAX_DEV];
+
+void eos_spi_dev_start(unsigned char dev) {
+    eos_net_stop();
+    switch (dev) {
+        case EOS_DEV_DISP:
+            eos_spi_start(dev, spi_dev_div[dev-1], SPI_CSID_DISP, 0);
+            break;
+        case EOS_DEV_CARD:
+            eos_spi_start(dev, spi_dev_div[dev-1], SPI_CSID_CARD, 0);
+            break;
+        case EOS_DEV_CAM:
+            eos_spi_start(dev, spi_dev_div[dev-1], SPI_CSID_NONE, SPI_CSPIN_CAM);
+            break;
+    }
+}
+
+void eos_spi_dev_stop(void) {
+    eos_spi_stop();
+    eos_net_start();
+}
+
+void eos_spi_dev_init(void) {
+    spi_dev_div[EOS_DEV_DISP - 1] = SPI_DIV_DISP;
+    spi_dev_div[EOS_DEV_CARD - 1] = SPI_DIV_CARD;
+    spi_dev_div[EOS_DEV_CAM  - 1] = SPI_DIV_CAM;
+
+    GPIO_REG(GPIO_INPUT_EN)     &= ~(1 << SPI_CSPIN_CAM);
+    GPIO_REG(GPIO_OUTPUT_EN)    |=  (1 << SPI_CSPIN_CAM);
+    GPIO_REG(GPIO_PULLUP_EN)    &= ~(1 << SPI_CSPIN_CAM);
+    GPIO_REG(GPIO_OUTPUT_XOR)   &= ~(1 << SPI_CSPIN_CAM);
+    GPIO_REG(GPIO_OUTPUT_VAL)   |=  (1 << SPI_CSPIN_CAM);
+}
+
+void eos_spi_dev_set_div(unsigned char dev, uint16_t div) {
+    spi_dev_div[dev-1] = div;
+}
diff --git a/fw/fe310/eos/spi_dev.h b/fw/fe310/eos/spi_dev.h
new file mode 100644
index 0000000..21dcee9
--- /dev/null
+++ b/fw/fe310/eos/spi_dev.h
@@ -0,0 +1,11 @@
+#define EOS_DEV_DISP        1
+#define EOS_DEV_CARD        2
+#define EOS_DEV_CAM         3
+
+#define EOS_DEV_MAX_DEV     3
+
+void eos_spi_dev_init(void);
+void eos_spi_dev_start(unsigned char dev);
+void eos_spi_dev_stop(void);
+
+void eos_spi_dev_set_div(unsigned char dev, uint16_t div);
diff --git a/fw/fe310/eos/timer.c b/fw/fe310/eos/timer.c
new file mode 100644
index 0000000..e07b9a6
--- /dev/null
+++ b/fw/fe310/eos/timer.c
@@ -0,0 +1,131 @@
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "encoding.h"
+#include "platform.h"
+
+#include "msgq.h"
+#include "event.h"
+#include "timer.h"
+
+#define MIN(X, Y)               (((X) < (Y)) ? (X) : (Y))
+#define MAX(X, Y)               (((X) > (Y)) ? (X) : (Y))
+
+static eos_timer_handler_t timer_handler[EOS_TIMER_MAX_ETYPE + 1];
+static uint64_t timer_next[EOS_TIMER_MAX_ETYPE + 1];
+
+static void timer_handle_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
+    unsigned char idx = (type & ~EOS_EVT_MASK);
+
+    if (idx && (idx <= EOS_TIMER_MAX_ETYPE) && timer_handler[idx]) {
+        timer_handler[idx](type);
+    } else {
+        eos_evtq_bad_handler(type, buffer, len);
+    }
+}
+
+void _eos_timer_handle(void) {
+    int i;
+    volatile uint64_t *mtime = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIME);
+    uint64_t *mtimecmp = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
+    uint64_t now = *mtime;
+    uint64_t next = 0;
+
+    for (i = 0; i <= EOS_TIMER_MAX_ETYPE; i++) {
+        if (timer_next[i] && (timer_next[i] <= now)) {
+            timer_next[i] = 0;
+            if (i == 0) {
+                timer_handler[0](0);
+            } else {
+                eos_evtq_push_isr(EOS_EVT_TIMER | i, NULL, 0);
+            }
+        }
+        next = next && timer_next[i] ? MIN(next, timer_next[i]) : (next ? next : timer_next[i]);
+    }
+    *mtimecmp = next;
+    if (*mtimecmp == 0) clear_csr(mie, MIP_MTIP);
+}
+
+void eos_timer_init(void) {
+    int i;
+    uint64_t *mtimecmp = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
+
+    clear_csr(mie, MIP_MTIP);
+    *mtimecmp = 0;
+    for (i=0; i<=EOS_TIMER_MAX_ETYPE; i++) {
+        timer_next[i] = 0;
+        timer_handler[i] = NULL;
+    }
+    eos_evtq_set_handler(EOS_EVT_TIMER, timer_handle_evt);
+}
+
+void eos_timer_set_handler(unsigned char evt, eos_timer_handler_t handler) {
+    uint64_t *mtimecmp = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
+
+    if (!evt && (*mtimecmp != 0)) clear_csr(mie, MIP_MTIP);
+    timer_handler[evt] = handler;
+    if (!evt && (*mtimecmp != 0)) set_csr(mie, MIP_MTIP);
+}
+
+uint32_t eos_timer_get(unsigned char evt) {
+    volatile uint64_t *mtime = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIME);
+    uint64_t *mtimecmp = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
+    uint64_t now;
+    uint32_t ret;
+
+    if (*mtimecmp != 0) clear_csr(mie, MIP_MTIP);
+    now = *mtime;
+    if (timer_next[evt]) {
+        ret = (timer_next[evt] > now) ? (timer_next[evt] - now) * 1000 / EOS_TIMER_RTC_FREQ : 0;
+    } else {
+        ret = EOS_TIMER_NONE;
+    }
+    if (*mtimecmp != 0) set_csr(mie, MIP_MTIP);
+
+    return ret;
+}
+
+void eos_timer_set(uint32_t msec, unsigned char evt) {
+    int i;
+    volatile uint64_t *mtime = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIME);
+    uint64_t *mtimecmp = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
+    uint64_t tick = *mtime + msec * (uint64_t)EOS_TIMER_RTC_FREQ / 1000;
+    uint64_t next = 0;
+
+    if (*mtimecmp != 0) clear_csr(mie, MIP_MTIP);
+    timer_next[evt] = tick;
+    for (i = 0; i <= EOS_TIMER_MAX_ETYPE; i++) {
+        next = next && timer_next[i] ? MIN(next, timer_next[i]) : (next ? next : timer_next[i]);
+    }
+    *mtimecmp = next;
+    if (*mtimecmp != 0) set_csr(mie, MIP_MTIP);
+}
+
+void eos_timer_clear(unsigned char evt) {
+    int i;
+    uint64_t *mtimecmp = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
+    uint64_t next = 0;
+
+    if (*mtimecmp != 0) clear_csr(mie, MIP_MTIP);
+    if (timer_next[evt]) {
+        timer_next[evt] = 0;
+        for (i = 0; i <= EOS_TIMER_MAX_ETYPE; i++) {
+            next = next && timer_next[i] ? MIN(next, timer_next[i]) : (next ? next : timer_next[i]);
+        }
+        *mtimecmp = next;
+    }
+    if (*mtimecmp != 0) set_csr(mie, MIP_MTIP);
+}
+
+
+void eos_time_sleep(uint32_t msec) {
+    volatile uint64_t *mtime = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIME);
+    uint64_t now_ms = *mtime * 1000 / EOS_TIMER_RTC_FREQ;
+
+    while (*mtime * 1000 / EOS_TIMER_RTC_FREQ < now_ms + msec);
+}
+
+uint64_t eos_time_get_tick(void) {
+    volatile uint64_t *mtime = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIME);
+    return *mtime;
+}
diff --git a/fw/fe310/eos/timer.h b/fw/fe310/eos/timer.h
new file mode 100644
index 0000000..2ac53f7
--- /dev/null
+++ b/fw/fe310/eos/timer.h
@@ -0,0 +1,22 @@
+#include <stdint.h>
+
+#define EOS_TIMER_ETYPE_UI      1
+#define EOS_TIMER_ETYPE_ECP     2
+#define EOS_TIMER_ETYPE_USER    4
+
+#define EOS_TIMER_MAX_ETYPE     4
+
+#define EOS_TIMER_NONE          0xffffffff
+#define EOS_TIMER_RTC_FREQ      32768
+
+typedef void (*eos_timer_handler_t) (unsigned char);
+
+void eos_timer_init(void);
+void eos_timer_set_handler(unsigned char evt, eos_timer_handler_t handler);
+
+uint32_t eos_timer_get(unsigned char evt);
+void eos_timer_set(uint32_t msec, unsigned char evt);
+void eos_timer_clear(unsigned char evt);
+
+void eos_time_sleep(uint32_t msec);
+uint64_t eos_time_get_tick(void);
diff --git a/fw/fe310/eos/trap_entry.S b/fw/fe310/eos/trap_entry.S
new file mode 100644
index 0000000..c24236b
--- /dev/null
+++ b/fw/fe310/eos/trap_entry.S
@@ -0,0 +1,531 @@
+#include "encoding.h"
+#include "sifive/bits.h"
+
+#define MCAUSE_INT        0x80000000
+#define MCAUSE_EXT        (MCAUSE_INT | IRQ_M_EXT)
+#define MCAUSE_TIMER      (MCAUSE_INT | IRQ_M_TIMER)
+
+#define PLIC_PRIORITY     0x0C000000
+#define PLIC_THRESHOLD    0x0C200000
+#define PLIC_CLAIM        0x0C200004
+
+#define PWM0_CTRL_ADDR    0x10015000
+#define PWM1_CTRL_ADDR    0x10025000
+#define PWM2_CTRL_ADDR    0x10035000
+#include "sifive/devices/pwm.h"
+
+#define GPIO_CTRL_ADDR    0x10012000
+#include "sifive/devices/gpio.h"
+
+#define SPI0_CTRL_ADDR    0x10014000
+#define SPI1_CTRL_ADDR    0x10024000
+#include "sifive/devices/spi.h"
+
+#include "evt_def.h"
+#include "msgq_def.h"
+#include "i2s_def.h"
+
+#define INT_PWM0_BASE     40
+#define INT_PWM1_BASE     44
+#define INT_PWM2_BASE     48
+
+#define I2S_PWM_CTRL_ADDR_CK      PWM0_CTRL_ADDR
+#define I2S_PWM_CTRL_ADDR_WS_MIC  PWM1_CTRL_ADDR
+#define I2S_PWM_CTRL_ADDR_WS_SPK  PWM2_CTRL_ADDR
+
+#define IOF_SPI1_SS0      2
+#define IOF_SPI1_SS1      8
+#define IOF_SPI1_SS2      9
+#define IOF_SPI1_SS3      10
+
+#define INT_SPI1_BASE     6
+#define INT_GPIO_BASE     8
+
+#include "net_def.h"
+#include "spi_def.h"
+#include "irq_def.h"
+
+
+  .section      .data.entry
+  .align 4
+
+.global eos_trap_entry
+eos_trap_entry:
+  addi sp, sp, -8*REGBYTES
+  STORE x8, 0*REGBYTES(sp)
+  STORE x9, 1*REGBYTES(sp)
+  STORE x18, 2*REGBYTES(sp)
+  STORE x19, 3*REGBYTES(sp)
+  STORE x20, 4*REGBYTES(sp)
+  STORE x21, 5*REGBYTES(sp)
+  STORE x22, 6*REGBYTES(sp)
+  STORE x23, 7*REGBYTES(sp)
+
+  csrr x8, mcause
+  li x18, MCAUSE_EXT
+  bne x8, x18, handle_intr
+  li x18, PLIC_CLAIM
+  lw x9, 0(x18)
+  li x18, I2S_IRQ_WS_ID
+  beq x9, x18, i2s_handle_ws
+  li x18, I2S_IRQ_SD_ID
+  beq x9, x18, i2s_handle_sd
+  j handle_intr
+
+evtq_push:
+  la x9, _eos_event_q
+  lbu x18, MSGQ_OFF_IDXR(x9)
+  lbu x19, MSGQ_OFF_IDXW(x9)
+  lbu x20, MSGQ_OFF_SIZE(x9)
+
+  sub x18, x19, x18
+  andi x18, x18, 0xff
+  beq x18, x20, 0f
+
+  addi x20, x20, -1
+  and x20, x20, x19
+  li x18, MSGQ_ITEM_SIZE
+  mul x20, x20, x18
+  lw x21, MSGQ_OFF_ARRAY(x9)
+  add x21, x21, x20
+
+  addi x19, x19, 1
+  sb x19, MSGQ_OFF_IDXW(x9)
+  jalr x0, x22
+
+0:
+  mv x20, x0
+  jalr x0, x21
+
+i2s_handle_sd:
+  # exit if too early
+  li x18, I2S_PWM_CTRL_ADDR_WS_SPK
+  lw x8, PWM_COUNT(x18)
+  lw x9, PWM_CMP3(x18)
+  bltu x8, x9, i2s_handle_sd_exit
+
+  # disable sd irq
+  li x18, PLIC_PRIORITY
+  sw x0, 4*I2S_IRQ_SD_ID(x18)
+
+  la x9, _eos_i2s_fmt
+  lw x23, 0(x9)
+
+i2s_abuf_pop:
+  # pop from spk buf -> x8
+  mv x8, x0
+  la x9, _eos_i2s_spk_buf
+  lhu x18, I2S_ABUF_OFF_IDXR(x9)
+  lhu x19, I2S_ABUF_OFF_IDXW(x9)
+  lhu x20, I2S_ABUF_OFF_SIZE(x9)
+
+  beq x18, x19, i2s_handle_sd_xchg
+
+  addi x20, x20, -1
+  and x20, x20, x18
+  lw x21, I2S_ABUF_OFF_ARRAY(x9)
+  add x21, x21, x20
+  bnez x23, 0f
+  lbu x8, 0(x21)
+  addi x18, x18, 1
+  j 1f
+0:
+  lb x8, 0(x21)
+  lbu x20, 1(x21)
+  slli x8, x8, 8
+  or x8, x8, x20
+  addi x18, x18, 2
+1:
+  sh x18, I2S_ABUF_OFF_IDXR(x9)
+
+  li x21, 0xffff
+  sub x18, x19, x18
+  and x18, x18, x21
+
+  # check for push to event queue
+  la x9, _eos_i2s_spk_wm
+  lw x20, 0(x9)
+  beqz x20, i2s_decode
+  bgtu x18, x20, i2s_decode
+
+  la x9, _eos_i2s_spk_evt_enable
+  lw x18, 0(x9)
+  beqz x18, i2s_decode
+  sw x0, 0(x9)
+
+  # push to event queue
+  jal x22, evtq_push
+  beqz x21, i2s_decode
+  li x18, (EOS_EVT_I2S | I2S_ETYPE_SPK)
+  sb x18, MSGQ_ITEM_OFF_TYPE(x21)
+
+i2s_decode:
+  bnez x23, i2s_handle_sd_xchg
+  # aLaw decode -> x8
+  xori x8, x8, 0x55
+  andi x9, x8, 0x80
+  beqz x9, 0f
+  li x9, 1
+  slli x9, x9, 7
+  not x9, x9
+  and x8, x8, x9
+  li x9, -1
+0:
+  andi x18, x8, 0xf0
+  srli x18, x18, 4
+  addi x18, x18, 4
+
+  li x19, 4
+  beq x18, x19, 1f
+
+  andi x8, x8, 0x0f
+  addi x19, x18, -4
+  sll x8, x8, x19
+
+  li x19, 1
+  sll x19, x19, x18
+  or x8, x8, x19
+
+  li x19, 1
+  addi x18, x18, -5
+  sll x19, x19, x18
+  or x8, x8, x19
+  j 2f
+1:
+  slli x8, x8, 1
+  ori x8, x8, 1
+2:
+  beqz x9, i2s_handle_sd_xchg
+  mul x8, x8, x9
+
+i2s_handle_sd_xchg:
+  # read/write shift reg: x8 -> sr -> x8
+  li x18, GPIO_CTRL_ADDR
+  li x19, (0x1 << I2S_PIN_SD_IN)
+  li x20, (0x1 << I2S_PIN_SD_OUT)
+  li x21, (0x1 << I2S_PIN_CK_SR)
+  lw x22, GPIO_OUTPUT_VAL(x18)
+
+  lw x9, GPIO_OUTPUT_EN(x18)
+  or x9, x9, x20
+  sw x9, GPIO_OUTPUT_EN(x18)
+
+  not x20, x20
+  xor x22, x22, x21
+
+  li x23, 16
+0:
+  # write bit
+  li x9, 1
+  slli x9, x9, 15
+  and x9, x8, x9
+  slli x8, x8, 1
+#if I2S_PIN_SD_OUT > 15
+  slli x9, x9, (I2S_PIN_SD_OUT - 15)
+#else
+  srli x9, x9, (15 - I2S_PIN_SD_OUT)
+#endif
+  and x22, x22, x20
+  or x22, x22, x9
+
+  # read bit
+  lw x9, GPIO_INPUT_VAL(x18)
+  and x9, x9, x19
+  srli x9, x9, I2S_PIN_SD_IN
+  or x8, x8, x9
+
+  # 74HC595 ck low (I2S_PIN_CK_SR high)
+  xor x22, x22, x21
+  sw x22, GPIO_OUTPUT_VAL(x18)
+
+  # idle
+  li x9, I2S_IDLE_CYCLES
+1:
+  addi x9, x9, -1
+  bnez x9, 1b
+
+  # 74HC595 ck high (I2S_PIN_CK_SR low)
+  xor x22, x22, x21
+  sw x22, GPIO_OUTPUT_VAL(x18)
+
+  # idle
+  li x9, I2S_IDLE_CYCLES
+1:
+  addi x9, x9, -1
+  bnez x9, 1b
+
+  addi x23, x23, -1
+  beqz x23, 2f
+  j 0b
+
+2:
+  # 74HC595 ck low (I2S_PIN_CK_SR high)
+  xor x22, x22, x21
+  sw x22, GPIO_OUTPUT_VAL(x18)
+
+  lw x9, GPIO_OUTPUT_EN(x18)
+  and x9, x9, x20
+  sw x9, GPIO_OUTPUT_EN(x18)
+
+  slli x8, x8, 16
+  srai x8, x8, 16
+
+  la x9, _eos_i2s_fmt
+  lw x23, 0(x9)
+
+i2s_encode:
+  bnez x23, i2s_abuf_push
+  # aLaw encode -> x8
+  li x18, 0x800
+  li x19, 7
+  bgez x8, 0f
+  neg x8, x8
+  lui x9, 0x80000
+  or x8, x8, x9
+0:
+  and x9, x8, x18
+  beq x9, x18, 1f
+  beqz x19, 1f
+  srli x18, x18, 1
+  addi x19, x19, -1
+  j 0b
+1:
+  mv x9, x19
+  bnez x9, 2f
+  addi x9, x9, 1
+2:
+  sra x8, x8, x9
+  li x9, 0x8000000f
+  and x8, x8, x9
+  slli x19, x19, 4
+  or x8, x8, x19
+  bgez x8, 3f
+  ori x8, x8, 0x80
+3:
+  xori x8, x8, 0x55
+  andi x8, x8, 0xff
+
+i2s_abuf_push:
+  # push to mic buf
+  la x9, _eos_i2s_mic_buf
+  lhu x18, I2S_ABUF_OFF_IDXR(x9)
+  lhu x19, I2S_ABUF_OFF_IDXW(x9)
+  lhu x20, I2S_ABUF_OFF_SIZE(x9)
+  li x21, 0xffff
+
+  sub x18, x19, x18
+  and x18, x18, x21
+  beq x18, x20, i2s_handle_sd_exit
+
+  addi x20, x20, -1
+  and x20, x20, x19
+  lw x21, I2S_ABUF_OFF_ARRAY(x9)
+  add x21, x21, x20
+  bnez x23, 0f
+  sb x8, 0(x21)
+  addi x19, x19, 1
+  addi x18, x18, 1
+  j 1f
+0:
+  sb x8, 1(x21)
+  srli x8, x8, 8
+  sb x8, 0(x21)
+  addi x19, x19, 2
+  addi x18, x18, 2
+1:
+  sh x19, I2S_ABUF_OFF_IDXW(x9)
+
+  # check for push to event queue
+  la x9, _eos_i2s_mic_wm
+  lw x20, 0(x9)
+  beqz x20, i2s_handle_sd_exit
+  bltu x18, x20, i2s_handle_sd_exit
+
+  la x9, _eos_i2s_mic_evt_enable
+  lw x18, 0(x9)
+  beqz x18, i2s_handle_sd_exit
+  sw x0, 0(x9)
+
+  # push to event queue
+  jal x22, evtq_push
+  beqz x21, i2s_handle_sd_exit
+  li x18, (EOS_EVT_I2S | I2S_ETYPE_MIC)
+  sb x18, MSGQ_ITEM_OFF_TYPE(x21)
+
+i2s_handle_sd_exit:
+  # complete
+  li x18, I2S_IRQ_SD_ID
+  li x19, PLIC_CLAIM
+  sw x18, 0(x19)
+
+  # exit
+  j trap_exit_data
+
+i2s_handle_ws:
+  # enable sd irq
+  li x18, PLIC_PRIORITY
+  li x19, IRQ_PRIORITY_I2S_SD
+  sw x19, 4*I2S_IRQ_SD_ID(x18)
+
+  # complete
+  li x18, I2S_IRQ_WS_ID
+  li x19, PLIC_CLAIM
+  sw x18, 0(x19)
+
+  # exit
+  j trap_exit_data
+
+.global _eos_i2s_start_pwm
+_eos_i2s_start_pwm:
+  addi sp, sp, -8*REGBYTES
+  STORE x8, 0*REGBYTES(sp)
+  STORE x9, 1*REGBYTES(sp)
+  STORE x18, 2*REGBYTES(sp)
+  STORE x19, 3*REGBYTES(sp)
+  STORE x20, 4*REGBYTES(sp)
+  STORE x21, 5*REGBYTES(sp)
+  STORE x22, 6*REGBYTES(sp)
+  STORE x23, 7*REGBYTES(sp)
+
+  li x18, I2S_PWM_CTRL_ADDR_CK
+  li x19, I2S_PWM_CTRL_ADDR_WS_MIC
+  li x20, I2S_PWM_CTRL_ADDR_WS_SPK
+  li x21, PWM_CFG_ENALWAYS | PWM_CFG_ZEROCMP | I2S_PWM_SCALE_CK
+  li x22, PWM_CFG_ENALWAYS | PWM_CFG_ZEROCMP | PWM_CFG_CMP2GANG
+  li x23, PWM_CFG_ENALWAYS | PWM_CFG_ZEROCMP | PWM_CFG_CMP1GANG
+  sw x21, PWM_CFG(x18)
+  sw x22, PWM_CFG(x19)
+  sw x23, PWM_CFG(x20)
+
+  LOAD x8, 0*REGBYTES(sp)
+  LOAD x9, 1*REGBYTES(sp)
+  LOAD x18, 2*REGBYTES(sp)
+  LOAD x19, 3*REGBYTES(sp)
+  LOAD x20, 4*REGBYTES(sp)
+  LOAD x21, 5*REGBYTES(sp)
+  LOAD x22, 6*REGBYTES(sp)
+  LOAD x23, 7*REGBYTES(sp)
+  addi sp, sp, 8*REGBYTES
+
+  ret
+
+.global _eos_flash_set
+_eos_flash_set:
+  li a3, SPI0_CTRL_ADDR
+  sw x0, SPI_REG_FCTRL(a3)
+  sw a0, SPI_REG_SCKDIV(a3)
+  sw a1, SPI_REG_FFMT(a3)
+  li a0, 1
+  sw a0, SPI_REG_FCTRL(a3)
+  ret
+
+trap_exit_data:
+  # Remain in M-mode after mret
+  li x18, MSTATUS_MPP
+  csrs mstatus, x18
+
+  LOAD x8, 0*REGBYTES(sp)
+  LOAD x9, 1*REGBYTES(sp)
+  LOAD x18, 2*REGBYTES(sp)
+  LOAD x19, 3*REGBYTES(sp)
+  LOAD x20, 4*REGBYTES(sp)
+  LOAD x21, 5*REGBYTES(sp)
+  LOAD x22, 6*REGBYTES(sp)
+  LOAD x23, 7*REGBYTES(sp)
+  addi sp, sp, 8*REGBYTES
+
+  mret
+
+handle_intr:
+  lui x18,       %hi(trap_entry_text)
+  addi x18, x18, %lo(trap_entry_text)
+  jalr x0, x18
+
+  .section      .text.entry
+  .align 2
+
+trap_entry_text:
+  addi sp, sp, -24*REGBYTES
+
+  STORE x1, 0*REGBYTES(sp)
+  STORE x2, 1*REGBYTES(sp)
+  STORE x3, 2*REGBYTES(sp)
+  STORE x4, 3*REGBYTES(sp)
+  STORE x5, 4*REGBYTES(sp)
+  STORE x6, 5*REGBYTES(sp)
+  STORE x7, 6*REGBYTES(sp)
+  STORE x10, 7*REGBYTES(sp)
+  STORE x11, 8*REGBYTES(sp)
+  STORE x12, 9*REGBYTES(sp)
+  STORE x13, 10*REGBYTES(sp)
+  STORE x14, 11*REGBYTES(sp)
+  STORE x15, 12*REGBYTES(sp)
+  STORE x16, 13*REGBYTES(sp)
+  STORE x17, 14*REGBYTES(sp)
+  STORE x24, 15*REGBYTES(sp)
+  STORE x25, 16*REGBYTES(sp)
+  STORE x26, 17*REGBYTES(sp)
+  STORE x27, 18*REGBYTES(sp)
+  STORE x28, 19*REGBYTES(sp)
+  STORE x29, 20*REGBYTES(sp)
+  STORE x30, 21*REGBYTES(sp)
+  STORE x31, 22*REGBYTES(sp)
+
+  li x18, MCAUSE_TIMER
+  beq x8, x18, handle_timer
+  li x18, MCAUSE_EXT
+  beq x8, x18, handle_ext
+  mv a0, x8
+  call _exit
+
+handle_timer:
+  call _eos_timer_handle
+  j trap_exit_text
+
+handle_ext:
+  mv a0, x9
+  call eos_intr_handle
+  li x18, PLIC_CLAIM
+  sw a0, 0(x18)
+  j trap_exit_text
+
+trap_exit_text:
+  # Remain in M-mode after mret
+  li t0, MSTATUS_MPP
+  csrs mstatus, t0
+
+  LOAD x1, 0*REGBYTES(sp)
+  LOAD x2, 1*REGBYTES(sp)
+  LOAD x3, 2*REGBYTES(sp)
+  LOAD x4, 3*REGBYTES(sp)
+  LOAD x5, 4*REGBYTES(sp)
+  LOAD x6, 5*REGBYTES(sp)
+  LOAD x7, 6*REGBYTES(sp)
+  LOAD x10, 7*REGBYTES(sp)
+  LOAD x11, 8*REGBYTES(sp)
+  LOAD x12, 9*REGBYTES(sp)
+  LOAD x13, 10*REGBYTES(sp)
+  LOAD x14, 11*REGBYTES(sp)
+  LOAD x15, 12*REGBYTES(sp)
+  LOAD x16, 13*REGBYTES(sp)
+  LOAD x17, 14*REGBYTES(sp)
+  LOAD x24, 15*REGBYTES(sp)
+  LOAD x25, 16*REGBYTES(sp)
+  LOAD x26, 17*REGBYTES(sp)
+  LOAD x27, 18*REGBYTES(sp)
+  LOAD x28, 19*REGBYTES(sp)
+  LOAD x29, 20*REGBYTES(sp)
+  LOAD x30, 21*REGBYTES(sp)
+  LOAD x31, 22*REGBYTES(sp)
+
+  LOAD x8, 24*REGBYTES(sp)
+  LOAD x9, 25*REGBYTES(sp)
+  LOAD x18, 26*REGBYTES(sp)
+  LOAD x19, 27*REGBYTES(sp)
+  LOAD x20, 28*REGBYTES(sp)
+  LOAD x21, 29*REGBYTES(sp)
+  LOAD x22, 30*REGBYTES(sp)
+  LOAD x23, 31*REGBYTES(sp)
+
+  addi sp, sp, 32*REGBYTES
+  mret
diff --git a/fw/fe310/eos/uart.c b/fw/fe310/eos/uart.c
new file mode 100644
index 0000000..e9349a7
--- /dev/null
+++ b/fw/fe310/eos/uart.c
@@ -0,0 +1,93 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "encoding.h"
+#include "platform.h"
+
+#include "eos.h"
+#include "interrupt.h"
+#include "event.h"
+
+#include "uart.h"
+#include "irq_def.h"
+
+static eos_uart_handler_t uart_handler[EOS_UART_MAX_ETYPE];
+
+static void uart_handle_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
+    unsigned char idx = (type & ~EOS_EVT_MASK) - 1;
+
+    if ((idx < EOS_UART_MAX_ETYPE) && uart_handler[idx]) {
+        uart_handler[idx](type);
+    } else {
+        eos_evtq_bad_handler(type, buffer, len);
+    }
+}
+
+static void uart_handle_intr(void) {
+    if (UART0_REG(UART_REG_IP) & UART_IP_TXWM) {
+        UART0_REG(UART_REG_IE) &= ~UART_IP_TXWM;
+        eos_evtq_push_isr(EOS_EVT_UART | EOS_UART_ETYPE_TX, NULL, 0);
+    }
+    if (UART0_REG(UART_REG_IP) & UART_IP_RXWM) {
+        UART0_REG(UART_REG_IE) &= ~UART_IP_RXWM;
+        eos_evtq_push_isr(EOS_EVT_UART | EOS_UART_ETYPE_RX, NULL, 0);
+    }
+}
+
+void eos_uart_init(void) {
+    int i;
+
+    for (i=0; i<EOS_UART_MAX_ETYPE; i++) {
+        uart_handler[i] = NULL;
+    }
+    eos_evtq_set_handler(EOS_EVT_UART, uart_handle_evt);
+    eos_intr_set(INT_UART0_BASE, IRQ_PRIORITY_UART, uart_handle_intr);
+}
+
+void eos_uart_set_handler(unsigned char type, eos_uart_handler_t handler) {
+    if (type && (type <= EOS_UART_MAX_ETYPE)) uart_handler[type - 1] = handler;
+}
+
+void eos_uart_txwm_set(uint8_t wm) {
+    UART0_REG(UART_REG_TXCTRL)  &= ~UART_TXWM(0xFFFF);
+    UART0_REG(UART_REG_TXCTRL)  |=  UART_TXWM(wm);
+    UART0_REG(UART_REG_IE)      |=  UART_IP_TXWM;
+}
+
+void eos_uart_txwm_clear(void) {
+    UART0_REG(UART_REG_IE)      &= ~UART_IP_TXWM;
+}
+
+void eos_uart_rxwm_set(uint8_t wm) {
+    UART0_REG(UART_REG_RXCTRL)  &= ~UART_RXWM(0xFFFF);
+    UART0_REG(UART_REG_RXCTRL)  |=  UART_RXWM(wm);
+    UART0_REG(UART_REG_IE)      |=  UART_IP_RXWM;
+}
+
+void eos_uart_rxwm_clear(void) {
+    UART0_REG(UART_REG_IE)      &= ~UART_IP_RXWM;
+}
+
+int eos_uart_putc(int c, char b) {
+    if (b) {
+        while (UART0_REG(UART_REG_TXFIFO) & 0x80000000);
+        UART0_REG(UART_REG_TXFIFO) = c & 0xff;
+    } else {
+        if (UART0_REG(UART_REG_TXFIFO) & 0x80000000) return EOS_ERR_FULL;
+        UART0_REG(UART_REG_TXFIFO) = c & 0xff;
+    }
+    return EOS_OK;
+}
+
+int eos_uart_getc(char b) {
+    volatile uint32_t r;
+
+    if (b) {
+        while ((r = UART0_REG(UART_REG_RXFIFO)) & 0x80000000);
+    } else {
+        r = UART0_REG(UART_REG_RXFIFO);
+        if (r & 0x80000000) return EOS_ERR_EMPTY;
+    }
+    return r & 0xff;
+}
\ No newline at end of file
diff --git a/fw/fe310/eos/uart.h b/fw/fe310/eos/uart.h
new file mode 100644
index 0000000..da5faab
--- /dev/null
+++ b/fw/fe310/eos/uart.h
@@ -0,0 +1,18 @@
+#include <stdint.h>
+
+#define EOS_UART_ETYPE_TX       1
+#define EOS_UART_ETYPE_RX       2
+
+#define EOS_UART_MAX_ETYPE      2
+
+typedef void (*eos_uart_handler_t) (unsigned char);
+
+void eos_uart_init(void);
+void eos_uart_set_handler(unsigned char type, eos_uart_handler_t handler);
+
+void eos_uart_txwm_set(uint8_t wm);
+void eos_uart_txwm_clear(void);
+void eos_uart_rxwm_set(uint8_t wm);
+void eos_uart_rxwm_clear(void);
+int eos_uart_putc(int c, char b);
+int eos_uart_getc(char b);
\ No newline at end of file
diff --git a/fw/fe310/eos/unicode.c b/fw/fe310/eos/unicode.c
new file mode 100644
index 0000000..2915791
--- /dev/null
+++ b/fw/fe310/eos/unicode.c
@@ -0,0 +1,180 @@
+#include "unicode.h"
+
+int utf8_enc(utf32_t ch, utf8_t *str) {
+    if (ch <= 0x7f) {
+        str[0] = ch;
+        return 1;
+    } else if (ch <= 0x7ff) {
+        str[0] = 0xc0 | (ch >> 6);
+        str[1] = 0x80 | (ch & 0x3f);
+        return 2;
+    } else if (ch <= 0xffff) {
+        if ((ch >= 0xd800) && (ch <= 0xdfff)) return UTF_ERR;
+        str[0] = 0xe0 | (ch >> 12);
+        str[1] = 0x80 | ((ch >> 6) & 0x3f);
+        str[2] = 0x80 | (ch & 0x3f);
+        return 3;
+    } else if (ch <= 0x10ffff) {
+        str[0] = 0xf0 | (ch >> 18);
+        str[1] = 0x80 | ((ch >> 12) & 0x3f);
+        str[2] = 0x80 | ((ch >> 6) & 0x3f);
+        str[3] = 0x80 | (ch & 0x3f);
+        return 4;
+    } else {
+        return UTF_ERR;
+    }
+}
+
+int utf8_dec(utf8_t *str, utf32_t *ch) {
+    if ((str[0] & 0x80) == 0x00) {
+        *ch = str[0];
+        return 1;
+    } else if ((str[0] & 0xe0) == 0xc0) {
+        if ((str[1] & 0xc0) != 0x80) return UTF_ERR;
+        *ch  = (utf32_t)(str[0] & 0x1f) << 6;
+        *ch |= (utf32_t)(str[1] & 0x3f);
+        if (*ch < 0x80) return UTF_ERR;
+        return 2;
+    } else if ((str[0] & 0xf0) == 0xe0) {
+        if (((str[1] & 0xc0) != 0x80) || ((str[2] & 0xc0) != 0x80)) return UTF_ERR;
+        *ch  = (utf32_t)(str[0] & 0x0f) << 12;
+        *ch |= (utf32_t)(str[1] & 0x3f) << 6;
+        *ch |= (utf32_t)(str[2] & 0x3f);
+        if ((*ch >= 0xd800) && (*ch <= 0xdfff)) return UTF_ERR;
+        if (*ch < 0x800) return UTF_ERR;
+        return 3;
+    } else if ((str[0] & 0xf8) == 0xf0) {
+        if (((str[1] & 0xc0) != 0x80) || ((str[2] & 0xc0) != 0x80) || ((str[3] & 0xc0) != 0x80)) return UTF_ERR;
+        *ch  = (utf32_t)(str[0] & 0x07) << 18;
+        *ch |= (utf32_t)(str[1] & 0x0f) << 12;
+        *ch |= (utf32_t)(str[2] & 0x3f) << 6;
+        *ch |= (utf32_t)(str[3] & 0x3f);
+        if (*ch < 0x010000) return UTF_ERR;
+        if (*ch > 0x10ffff) return UTF_ERR;
+        return 4;
+    } else {
+        return UTF_ERR;
+    }
+}
+
+int utf8_seek(utf8_t *str, int off, utf32_t *ch) {
+    int i;
+    int len = 0;
+
+    if (off < 0) {
+        off = -off;
+        for (i=0; i<off; i++) {
+            len--;
+            while ((str[len] & 0xc0) == 0x80) len--;
+        }
+    } else {
+        for (i=0; i<off; i++) {
+            if ((str[len] & 0x80) == 0x00) {
+                len += 1;
+            } else if ((str[0] & 0xe0) == 0xc0) {
+                len += 2;
+            } else if ((str[0] & 0xf0) == 0xe0) {
+                len += 3;
+            } else if ((str[0] & 0xf8) == 0xf0) {
+                len += 4;
+            }
+        }
+    }
+    utf8_dec(str + len, ch);
+    return len;
+}
+
+int utf8_verify(utf8_t *str, int str_size, int *str_len) {
+    utf32_t ch;
+    uint8_t ch_l;
+    int len = 0;
+
+    while (len < str_size) {
+        if (str_size - len < 4) {
+            if (((str[len] & 0xf8) == 0xf0) ||
+               (((str[len] & 0xf0) == 0xe0) && (str_size - len < 3)) ||
+               (((str[len] & 0xe0) == 0xc0) && (str_size - len < 2))) {
+                   break;
+               }
+        }
+        ch_l = utf8_dec(str + len, &ch);
+        if (ch_l > 0) {
+            if (ch == 0) {
+                *str_len = len;
+                return UTF_OK;
+            }
+            len += ch_l;
+        } else {
+            break;
+        }
+    }
+    *str_len = len;
+    return UTF_ERR;
+}
+
+int utf16_enc(utf32_t ch, uint8_t *str) {
+    if (ch <= 0xffff) {
+        if ((ch >= 0xd800) && (ch <= 0xdfff)) return UTF_ERR;
+        str[0] = ch >> 8;
+        str[1] = ch & 0xff;
+        return 2;
+    } else if (ch <= 0x10ffff) {
+        uint16_t hi;
+        uint16_t lo;
+
+        ch -= 0x10000;
+        hi = (ch >> 10) + 0xd800;
+        lo = (ch & 0x3ff) + 0xdc00;
+        str[0] = hi >> 8;
+        str[1] = hi & 0xff;
+        str[2] = lo >> 8;
+        str[3] = lo & 0xff;
+        return 4;
+    } else {
+        return UTF_ERR;
+    }
+}
+
+int utf16_dec(uint8_t *str, utf32_t *ch) {
+    *ch = (str[0] << 8) | str[1];
+    if ((*ch >= 0xd800) && (*ch <= 0xdfff)) {
+        uint16_t hi = *ch;
+        uint16_t lo;
+
+        if (hi > 0xdbff) return UTF_ERR;
+        lo = (str[2] << 8) | str[3];
+        if ((lo < 0xdc00) || (lo > 0xdfff)) return UTF_ERR;
+        *ch = (((hi - 0xd800) << 10) | (lo - 0xdc00)) + 0x10000;
+        return 4;
+    } else {
+        return 2;
+    }
+}
+
+int utf16_seek(uint8_t *str, int off, utf32_t *ch) {
+    int i;
+    int len = 0;
+    uint16_t cu;
+
+    if (off < 0) {
+        off = -off;
+        for (i=0; i<off; i++) {
+            len -= 2;
+            cu = (str[len] << 8) | str[len + 1];
+            if ((cu >= 0xdc00) && (cu <= 0xdfff)) {
+                len -= 2;
+            }
+        }
+    } else {
+        for (i=0; i<off; i++) {
+            cu = (str[len] << 8) | str[len + 1];
+            if ((cu >= 0xd800) && (cu <= 0xdbff)) {
+                len += 4;
+            } else {
+                len += 2;
+            }
+        }
+    }
+    utf16_dec(str + len, ch);
+    return len;
+}
diff --git a/fw/fe310/eos/unicode.h b/fw/fe310/eos/unicode.h
new file mode 100644
index 0000000..a3b9696
--- /dev/null
+++ b/fw/fe310/eos/unicode.h
@@ -0,0 +1,17 @@
+#include <stdint.h>
+
+#define UTF_OK      0
+#define UTF_ERR     -1
+
+typedef uint8_t utf8_t;
+typedef uint16_t utf16_t;
+typedef uint32_t utf32_t;
+
+int utf8_enc(utf32_t ch, utf8_t *str);
+int utf8_dec(utf8_t *str, utf32_t *ch);
+int utf8_seek(utf8_t *str, int off, utf32_t *ch);
+int utf8_verify(utf8_t *str, int str_size, int *str_len);
+
+int utf16_enc(utf32_t ch, uint8_t *str);
+int utf16_dec(uint8_t *str, utf32_t *ch);
+int utf16_seek(uint8_t *str, int off, utf32_t *ch);
diff --git a/fw/fe310/eos/wifi.c b/fw/fe310/eos/wifi.c
new file mode 100644
index 0000000..d58c0eb
--- /dev/null
+++ b/fw/fe310/eos/wifi.c
@@ -0,0 +1,58 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "eos.h"
+#include "event.h"
+#include "net.h"
+
+#include "wifi.h"
+
+static eos_evt_handler_t evt_handler[EOS_WIFI_MAX_MTYPE];
+
+static void wifi_handle_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
+    if ((buffer == NULL) || (len < 1)) {
+        eos_net_bad_handler(type, buffer, len);
+        return;
+    }
+
+    unsigned char mtype = buffer[0];
+    if (mtype < EOS_WIFI_MAX_MTYPE) {
+        evt_handler[mtype](type, buffer, len);
+    } else {
+        eos_net_bad_handler(type, buffer, len);
+    }
+}
+
+void eos_wifi_init(void) {
+    int i;
+
+    for (i=0; i<EOS_WIFI_MAX_MTYPE; i++) {
+        evt_handler[i] = eos_net_bad_handler;
+    }
+    eos_net_set_handler(EOS_NET_MTYPE_WIFI, wifi_handle_evt);
+}
+
+void eos_wifi_set_handler(unsigned char mtype, eos_evt_handler_t handler) {
+    if (handler == NULL) handler = eos_net_bad_handler;
+    if (mtype < EOS_WIFI_MAX_MTYPE) evt_handler[mtype] = handler;
+}
+
+void eos_wifi_connect(const char *ssid, const char *pass) {
+    int ssid_len = strlen(ssid);
+    int pass_len = strlen(pass);
+    unsigned char *buffer = eos_net_alloc();
+
+    buffer[0] = EOS_WIFI_MTYPE_CONNECT;
+    strcpy(buffer+1, ssid);
+    buffer[ssid_len+1] = 0;
+    strcpy(buffer+ssid_len+2, pass);
+    buffer[ssid_len+pass_len+2] = 0;
+    eos_net_send(EOS_NET_MTYPE_WIFI, buffer, ssid_len+pass_len+3, 0);
+}
+
+void eos_wifi_disconnect(void) {
+    unsigned char *buffer = eos_net_alloc();
+    buffer[0] = EOS_WIFI_MTYPE_DISCONNECT;
+    eos_net_send(EOS_NET_MTYPE_WIFI, buffer, 1, 0);
+}
diff --git a/fw/fe310/eos/wifi.h b/fw/fe310/eos/wifi.h
new file mode 100644
index 0000000..732a7a9
--- /dev/null
+++ b/fw/fe310/eos/wifi.h
@@ -0,0 +1,14 @@
+#include <stdint.h>
+#include "event.h"
+
+#define EOS_WIFI_MTYPE_SCAN         0
+#define EOS_WIFI_MTYPE_CONNECT      1
+#define EOS_WIFI_MTYPE_DISCONNECT   2
+
+#define EOS_WIFI_MAX_MTYPE          3
+
+void eos_wifi_init(void);
+void eos_wifi_set_handler(unsigned char mtype, eos_evt_handler_t handler);
+
+void eos_wifi_connect(const char *ssid, const char *pass);
+void eos_wifi_disconnect(void);