From 5c4ad4969514b82285ef37922f7acf61600c70de Mon Sep 17 00:00:00 2001
From: Uros Majstorovic <majstor@majstor.org>
Date: Thu, 8 Apr 2021 04:03:03 +0200
Subject: reintrodiced spi_dev

---
 fw/fe310/eos/Makefile           |  2 +-
 fw/fe310/eos/board.h            |  2 +
 fw/fe310/eos/eos.c              |  2 +
 fw/fe310/eos/eve/eve_platform.h |  1 +
 fw/fe310/eos/net.c              |  1 +
 fw/fe310/eos/power.c            |  2 +
 fw/fe310/eos/spi.c              | 92 +++++++++++------------------------------
 fw/fe310/eos/spi.h              | 25 ++++-------
 fw/fe310/eos/spi_cfg.h          | 35 ++++++++++++++++
 fw/fe310/eos/spi_dev.c          | 89 +++++++++++++++++++++++++++++++++++++++
 fw/fe310/eos/spi_dev.h          | 21 ++++++++++
 fw/fe310/eos/spi_priv.h         | 44 ++------------------
 12 files changed, 189 insertions(+), 127 deletions(-)
 create mode 100644 fw/fe310/eos/spi_cfg.h
 create mode 100644 fw/fe310/eos/spi_dev.c
 create mode 100644 fw/fe310/eos/spi_dev.h

(limited to 'fw')

diff --git a/fw/fe310/eos/Makefile b/fw/fe310/eos/Makefile
index 366e69a..0b3d6fe 100644
--- a/fw/fe310/eos/Makefile
+++ b/fw/fe310/eos/Makefile
@@ -2,7 +2,7 @@ include ../common.mk
 
 CFLAGS += -I. -I../bsp/include -I../bsp/drivers
 
-obj = trap_entry.o eos.o msgq.o event.o interrupt.o timer.o power.o i2s.o i2c.o uart.o spi.o net.o wifi.o cell.o sock.o unicode.o
+obj = trap_entry.o eos.o msgq.o event.o interrupt.o timer.o power.o i2s.o i2c.o uart.o spi.o spi_dev.o net.o wifi.o cell.o sock.o unicode.o
 
 
 %.o: %.c %.h
diff --git a/fw/fe310/eos/board.h b/fw/fe310/eos/board.h
index 98741da..e663f62 100644
--- a/fw/fe310/eos/board.h
+++ b/fw/fe310/eos/board.h
@@ -13,6 +13,8 @@
 #define SPI_CSPIN_SDC           SPI_CSPIN_NONE
 #define SPI_CSPIN_CAM           23
 
+#define SPI_IOF_MASK_CS         (((uint32_t)1 << IOF_SPI1_SS0) | ((uint32_t)1 << IOF_SPI1_SS2) | ((uint32_t)1 << IOF_SPI1_SS3))
+
 #define NET_PIN_RTS             20
 #define NET_PIN_CTS             22
 
diff --git a/fw/fe310/eos/eos.c b/fw/fe310/eos/eos.c
index 490e68b..aa374a0 100644
--- a/fw/fe310/eos/eos.c
+++ b/fw/fe310/eos/eos.c
@@ -7,6 +7,7 @@
 #include "i2s.h"
 #include "uart.h"
 #include "spi.h"
+#include "spi_dev.h"
 #include "net.h"
 #include "wifi.h"
 #include "cell.h"
@@ -28,6 +29,7 @@ void eos_init(void) {
     eos_i2s_init();
     eos_uart_init();
     eos_spi_init();
+    eos_spi_dev_init();
     eos_net_init();
     eos_power_init();
     eos_wifi_init();
diff --git a/fw/fe310/eos/eve/eve_platform.h b/fw/fe310/eos/eve/eve_platform.h
index 48ea00b..7975fbc 100644
--- a/fw/fe310/eos/eve/eve_platform.h
+++ b/fw/fe310/eos/eve/eve_platform.h
@@ -1,6 +1,7 @@
 #include <stdint.h>
 
 #include "spi.h"
+#include "spi_dev.h"
 #include "timer.h"
 
 #define EVE_ETYPE_INTR      1
diff --git a/fw/fe310/eos/net.c b/fw/fe310/eos/net.c
index c9bbc63..5edb013 100644
--- a/fw/fe310/eos/net.c
+++ b/fw/fe310/eos/net.c
@@ -15,6 +15,7 @@
 
 #include "spi.h"
 #include "spi_priv.h"
+#include "spi_dev.h"
 
 #include "net.h"
 
diff --git a/fw/fe310/eos/power.c b/fw/fe310/eos/power.c
index 6f292b8..5f44a94 100644
--- a/fw/fe310/eos/power.c
+++ b/fw/fe310/eos/power.c
@@ -7,6 +7,8 @@
 #include "eos.h"
 #include "event.h"
 #include "timer.h"
+#include "spi.h"
+#include "spi_dev.h"
 #include "net.h"
 #include "eve/eve.h"
 
diff --git a/fw/fe310/eos/spi.c b/fw/fe310/eos/spi.c
index 932c5f1..2966ab9 100644
--- a/fw/fe310/eos/spi.c
+++ b/fw/fe310/eos/spi.c
@@ -11,18 +11,24 @@
 
 #include "board.h"
 
-#include "net.h"
 #include "spi.h"
 #include "spi_priv.h"
 
+#define SPI_MODE0               0x00
+#define SPI_MODE1               0x01
+#define SPI_MODE2               0x02
+#define SPI_MODE3               0x03
+
+#define SPI_FLAG_XCHG           0x10
+
+#define SPI_IOF_MASK            (((uint32_t)1 << IOF_SPI1_SCK) | ((uint32_t)1 << IOF_SPI1_MOSI) | ((uint32_t)1 << IOF_SPI1_MISO)) | SPI_IOF_MASK_CS
+
 #define MIN(X, Y)               (((X) < (Y)) ? (X) : (Y))
 #define MAX(X, Y)               (((X) > (Y)) ? (X) : (Y))
 
-static uint8_t spi_dev;
 static uint8_t spi_cspin;
-static uint8_t spi_lock;
-static uint16_t spi_div[EOS_SPI_MAX_DEV];
 static volatile uint8_t spi_state_flags;
+static unsigned char spi_evt;
 static unsigned char spi_in_xchg;
 
 static uint32_t spi_state_len = 0;
@@ -30,11 +36,11 @@ 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 eos_evt_handler_t evt_handler[EOS_SPI_MAX_EVT];
 
 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) {
+    if (idx < EOS_SPI_MAX_EVT) {
         evt_handler[idx](type, buffer, len);
     } else {
         eos_evtq_bad_handler(type, buffer, len);
@@ -44,7 +50,7 @@ static void spi_handle_evt(unsigned char type, unsigned char *buffer, uint16_t l
 void eos_spi_init(void) {
     int i;
 
-    for (i=0; i<EOS_SPI_MAX_DEV; i++) {
+    for (i=0; i<EOS_SPI_MAX_EVT; i++) {
         evt_handler[i] = eos_evtq_bad_handler;
     }
     eos_evtq_set_handler(EOS_EVT_SPI, spi_handle_evt);
@@ -61,80 +67,30 @@ void eos_spi_init(void) {
 
     // There is no way here to change the CS polarity.
     // SPI1_REG(SPI_REG_CSDEF) = 0xFFFF;
-
-    for (i=0; i<EOS_SPI_MAX_DEV; i++) {
-        spi_div[i] = spi_cfg[i].div;
-        if (spi_cfg[i].csid == SPI_CSID_NONE) {
-            GPIO_REG(GPIO_INPUT_EN)     &= ~(1 << spi_cfg[i].cspin);
-            GPIO_REG(GPIO_OUTPUT_EN)    |=  (1 << spi_cfg[i].cspin);
-            GPIO_REG(GPIO_PULLUP_EN)    &= ~(1 << spi_cfg[i].cspin);
-            GPIO_REG(GPIO_OUTPUT_XOR)   &= ~(1 << spi_cfg[i].cspin);
-            GPIO_REG(GPIO_OUTPUT_VAL)   |=  (1 << spi_cfg[i].cspin);
-        }
-    }
 }
 
-int eos_spi_select(unsigned char dev) {
-    if (dev == EOS_SPI_DEV_NET) return EOS_ERR;
-    if (spi_dev != EOS_SPI_DEV_NET) return EOS_ERR;
-
-    eos_net_stop();
+void eos_spi_start(uint8_t div, uint8_t csid, uint8_t cspin, unsigned char evt) {
     spi_state_flags = 0;
-    SPI1_REG(SPI_REG_SCKDIV) = spi_div[dev];
-    SPI1_REG(SPI_REG_CSID) = spi_cfg[dev].csid;
-    if (spi_cfg[dev].csid != SPI_CSID_NONE) {
+    spi_evt = evt;
+    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_cspin = spi_cfg[dev].cspin;
+        spi_cspin = cspin;
     }
     eos_intr_set_handler(INT_SPI1_BASE, eos_spi_handle_xchg);
-
-    return EOS_OK;
 }
 
-int eos_spi_deselect(void) {
-    if (spi_dev == EOS_SPI_DEV_NET) return EOS_ERR;
-    if (spi_lock) return EOS_ERR_BUSY;
-
+void eos_spi_stop(void) {
     eos_spi_flush();
-    eos_net_start();
-    spi_dev = EOS_SPI_DEV_NET;
-
-    return EOS_OK;
-}
-
-uint8_t eos_spi_dev(void) {
-    return spi_dev;
-}
-
-uint16_t eos_spi_div(unsigned char dev) {
-    return spi_div[dev];
-}
-
-uint16_t eos_spi_csid(unsigned char dev) {
-    return spi_cfg[dev].csid;
-}
-
-uint16_t eos_spi_cspin(unsigned char dev) {
-    return spi_cfg[dev].cspin;
-}
-
-void eos_spi_lock(void) {
-    spi_lock = 1;
-}
-
-void eos_spi_unlock(void) {
-    spi_lock = 0;
-}
-
-void eos_spi_set_div(unsigned char dev, uint16_t div) {
-    spi_div[dev] = div;
+    spi_evt = 0;
 }
 
-void eos_spi_set_handler(unsigned char dev, eos_evt_handler_t handler) {
+void eos_spi_set_handler(unsigned char evt, 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;
+    if (evt && (evt <= EOS_SPI_MAX_EVT)) evt_handler[evt - 1] = handler;
 }
 
 void _eos_spi_xchg_init(unsigned char *buffer, uint16_t len, uint8_t flags) {
@@ -192,7 +148,7 @@ void eos_spi_handle_xchg(void) {
             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_SPI_DEV_NET) eos_evtq_push_isr(EOS_EVT_SPI | spi_dev, spi_state_buf, spi_state_len);
+            if (spi_evt) eos_evtq_push_isr(EOS_EVT_SPI | spi_evt, 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;
diff --git a/fw/fe310/eos/spi.h b/fw/fe310/eos/spi.h
index ba04cc0..1463c66 100644
--- a/fw/fe310/eos/spi.h
+++ b/fw/fe310/eos/spi.h
@@ -1,30 +1,19 @@
 #include <stdint.h>
 #include "event.h"
 
-#define EOS_SPI_DEV_NET         0
-#define EOS_SPI_DEV_EVE         1
-#define EOS_SPI_DEV_SDC         2
-#define EOS_SPI_DEV_CAM         3
-
-#define EOS_SPI_MAX_DEV         4
-
 #define EOS_SPI_FLAG_TX         0x01
 #define EOS_SPI_FLAG_MORE       0x02
 #define EOS_SPI_FLAG_BSWAP      0x04
 
-void eos_spi_init(void);
-int eos_spi_select(unsigned char dev);
-int eos_spi_deselect(void);
+#define EOS_SPI_EVT_SDC         1
+#define EOS_SPI_EVT_CAM         2
 
-uint8_t eos_spi_dev(void);
-uint16_t eos_spi_div(unsigned char dev);
-uint16_t eos_spi_csid(unsigned char dev);
-uint16_t eos_spi_cspin(unsigned char dev);
+#define EOS_SPI_MAX_EVT         2
 
-void eos_spi_lock(void);
-void eos_spi_unlock(void);
-void eos_spi_set_div(unsigned char dev, uint16_t div);
-void eos_spi_set_handler(unsigned char dev, eos_evt_handler_t handler);
+void eos_spi_init(void);
+void eos_spi_start(uint8_t div, uint8_t csid, uint8_t cspin, unsigned char evt);
+void eos_spi_stop(void);
+void eos_spi_set_handler(unsigned char evt, 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);
diff --git a/fw/fe310/eos/spi_cfg.h b/fw/fe310/eos/spi_cfg.h
new file mode 100644
index 0000000..43b0763
--- /dev/null
+++ b/fw/fe310/eos/spi_cfg.h
@@ -0,0 +1,35 @@
+#include <stdint.h>
+
+typedef struct {
+    uint16_t div;
+    uint8_t csid;
+    uint8_t cspin;
+    unsigned char evt;
+} SPIConfig;
+
+static const SPIConfig spi_cfg[] = {
+    {   // DEV_NET
+        .div = SPI_DIV_NET,
+        .csid = SPI_CSID_NET,
+        .cspin = SPI_CSPIN_NET,
+        .evt = 0,   // Not SPI event
+    },
+    {   // DEV_EVE
+        .div = SPI_DIV_EVE,
+        .csid = SPI_CSID_EVE,
+        .cspin = SPI_CSPIN_EVE,
+        .evt = 0,
+    },
+    {   // DEV_SDC
+        .div = SPI_DIV_SDC,
+        .csid = SPI_CSID_SDC,
+        .cspin = SPI_CSPIN_SDC,
+        .evt = EOS_SPI_EVT_SDC,
+    },
+    {   // DEV_CAM
+        .div = SPI_DIV_CAM,
+        .csid = SPI_CSID_CAM,
+        .cspin = SPI_CSPIN_CAM,
+        .evt = EOS_SPI_EVT_CAM,
+    },
+};
diff --git a/fw/fe310/eos/spi_dev.c b/fw/fe310/eos/spi_dev.c
new file mode 100644
index 0000000..d279faf
--- /dev/null
+++ b/fw/fe310/eos/spi_dev.c
@@ -0,0 +1,89 @@
+#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 "board.h"
+
+#include "net.h"
+#include "spi.h"
+#include "spi_priv.h"
+#include "spi_cfg.h"
+#include "spi_dev.h"
+
+static uint8_t spi_dev;
+static uint8_t spi_lock;
+static uint16_t spi_div[EOS_SPI_MAX_DEV];
+
+void eos_spi_dev_init(void) {
+    int i;
+
+    for (i=0; i<EOS_SPI_MAX_DEV; i++) {
+        spi_div[i] = spi_cfg[i].div;
+        if (spi_cfg[i].csid == SPI_CSID_NONE) {
+            GPIO_REG(GPIO_INPUT_EN)     &= ~(1 << spi_cfg[i].cspin);
+            GPIO_REG(GPIO_OUTPUT_EN)    |=  (1 << spi_cfg[i].cspin);
+            GPIO_REG(GPIO_PULLUP_EN)    &= ~(1 << spi_cfg[i].cspin);
+            GPIO_REG(GPIO_OUTPUT_XOR)   &= ~(1 << spi_cfg[i].cspin);
+            GPIO_REG(GPIO_OUTPUT_VAL)   |=  (1 << spi_cfg[i].cspin);
+        }
+    }
+}
+
+int eos_spi_select(unsigned char dev) {
+    if (dev == EOS_SPI_DEV_NET) return EOS_ERR;
+    if (spi_dev != EOS_SPI_DEV_NET) return EOS_ERR;
+
+    eos_net_stop();
+
+    spi_dev = dev;
+    eos_spi_start(spi_div[dev], spi_cfg[dev].csid, spi_cfg[dev].cspin, spi_cfg[dev].evt);
+
+    return EOS_OK;
+}
+
+int eos_spi_deselect(void) {
+    if (spi_lock) return EOS_ERR_BUSY;
+    if (spi_dev == EOS_SPI_DEV_NET) return EOS_ERR;
+
+    eos_spi_stop();
+
+    spi_dev = EOS_SPI_DEV_NET;
+    eos_net_start();
+
+    return EOS_OK;
+}
+
+uint8_t eos_spi_dev(void) {
+    return spi_dev;
+}
+
+uint16_t eos_spi_div(unsigned char dev) {
+    return spi_div[dev];
+}
+
+uint8_t eos_spi_csid(unsigned char dev) {
+    return spi_cfg[dev].csid;
+}
+
+uint8_t eos_spi_cspin(unsigned char dev) {
+    return spi_cfg[dev].cspin;
+}
+
+void eos_spi_lock(void) {
+    spi_lock = 1;
+}
+
+void eos_spi_unlock(void) {
+    spi_lock = 0;
+}
+
+void eos_spi_set_div(unsigned char dev, uint16_t div) {
+    spi_div[dev] = div;
+}
diff --git a/fw/fe310/eos/spi_dev.h b/fw/fe310/eos/spi_dev.h
new file mode 100644
index 0000000..ff0e2a6
--- /dev/null
+++ b/fw/fe310/eos/spi_dev.h
@@ -0,0 +1,21 @@
+#include <stdint.h>
+
+#define EOS_SPI_DEV_NET         0
+#define EOS_SPI_DEV_EVE         1
+#define EOS_SPI_DEV_SDC         2
+#define EOS_SPI_DEV_CAM         3
+
+#define EOS_SPI_MAX_DEV         4
+
+void eos_spi_dev_init(void);
+int eos_spi_select(unsigned char dev);
+int eos_spi_deselect(void);
+
+uint8_t eos_spi_dev(void);
+uint16_t eos_spi_div(unsigned char dev);
+uint8_t eos_spi_csid(unsigned char dev);
+uint8_t eos_spi_cspin(unsigned char dev);
+
+void eos_spi_lock(void);
+void eos_spi_unlock(void);
+void eos_spi_set_div(unsigned char dev, uint16_t div);
diff --git a/fw/fe310/eos/spi_priv.h b/fw/fe310/eos/spi_priv.h
index a0344ff..72c2dae 100644
--- a/fw/fe310/eos/spi_priv.h
+++ b/fw/fe310/eos/spi_priv.h
@@ -1,44 +1,8 @@
-#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
+#include <stdint.h>
 
 #define SPI_CSID_NONE           1
 #define SPI_CSPIN_NONE          0xff
 
-#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)
-
-typedef struct {
-    uint8_t div;
-    uint8_t csid;
-    uint8_t cspin;
-} SPIConfig;
-
-static const SPIConfig spi_cfg[] = {
-    {   // DEV_NET
-        .div = SPI_DIV_NET,
-        .csid = SPI_CSID_NET,
-        .cspin = SPI_CSPIN_NET,
-    },
-    {   // DEV_EVE
-        .div = SPI_DIV_EVE,
-        .csid = SPI_CSID_EVE,
-        .cspin = SPI_CSPIN_EVE,
-    },
-    {   // DEV_SDC
-        .div = SPI_DIV_SDC,
-        .csid = SPI_CSID_SDC,
-        .cspin = SPI_CSPIN_SDC,
-    },
-    {   // DEV_CAM
-        .div = SPI_DIV_CAM,
-        .csid = SPI_CSID_CAM,
-        .cspin = SPI_CSPIN_CAM,
-    },
-};
\ No newline at end of file
+/* DO NOT TOUCH THEESE */
+#define SPI_SIZE_CHUNK          4
+#define SPI_SIZE_WM             2
-- 
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