ext gpio driver initial commit

4 files changed, 144 insertions, 0 deletions

diff --git a/fw/fe310/eos/dev/egpio.c b/fw/fe310/eos/dev/egpio.c
new file mode 100644
index 0000000..e5a39bf
--- /dev/null
+++ b/fw/fe310/eos/dev/egpio.c
@@ -0,0 +1,21 @@
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "eos.h"
+#include "soc/i2c.h"
+
+#include "fxl6408.h"
+#include "egpio.h"
+
+int eos_egpio_pin_get(uint8_t reg, uint8_t pin, uint8_t *val) {
+    uint8_t chip_id;
+
+    chip_id = (pin & EGPIO_PIN_MASK_CHIP_ID) >> 4;
+    pin &= EGPIO_PIN_MASK;
+}
+int eos_egpio_pin_set(uint8_t reg, uint8_t pin, uint8_t val) {
+    uint8_t chip_id;
+
+    chip_id = (pin & EGPIO_PIN_MASK_CHIP_ID) >> 4;
+    pin &= EGPIO_PIN_MASK;
+}
\ No newline at end of file
diff --git a/fw/fe310/eos/dev/egpio.h b/fw/fe310/eos/dev/egpio.h
new file mode 100644
index 0000000..e9573a7
--- /dev/null
+++ b/fw/fe310/eos/dev/egpio.h
@@ -0,0 +1,46 @@
+#include <stdint.h>
+
+#define EGPIO0_EVE_INT          0x00    /* EVE interrrupt */
+#define EGPIO0_SDCARD_DET       0x01    /* SD Card detect */
+#define EGPIO0_EXP_IO0          0x02    /* expansion io 0 */
+#define EGPIO0_EXP_IO1          0x03    /* expansion io 1 */
+#define EGPIO0_BTN_WAKE         0x04    /* wake button */
+#define EGPIO0_BAT_INT          0x05    /* battery charger IC inetrrupt */
+#define EGPIO0_CTP_SEL          0x06    /* switch CTP connection: EVE_DISP:1 and CTP_SEL:0 - connected to EVE chip, EVE_DISP:1 and CTP_SEL:1 - connected to fe310 chip, EVE_DISP:0 and CTP_SEL:0 - connected to app module */
+#define EGPIO0_CTP_INT          0x07    /* CTP interrupt */
+
+#define EGPIO1_MIC_DIS          0x00    /* microphone disable */
+#define EGPIO1_HP_AMP_CS        0x01    /* SPI chip select for headphone amplifier (pcm1770) */
+#define EGPIO1_MIC_SEL          0x02    /* switch mic connection: 0 - connected to app module, 1 - connected to fe310 chip */
+#define EGPIO1_HP_DET           0x03    /* headphone detect */
+#define EGPIO1_USR0             0x04    /* user IO */
+#define EGPIO1_USR1             0x05
+#define EGPIO1_USR2             0x06
+#define EGPIO1_USR3             0x07
+
+#define EGPIO_CHIP_ID0          0x00
+#define EGPIO_CHIP_ID1          0x10
+
+#define EGPIO_PIN_EVE_INT       (EGPIO_CHIP_ID0 | EGPIO0_EVE_INT)
+#define EGPIO_PIN_SDCARD_DET    (EGPIO_CHIP_ID0 | EGPIO0_SDCARD_DET)
+#define EGPIO_PIN_EXP_IO0       (EGPIO_CHIP_ID0 | EGPIO0_EXP_IO0)
+#define EGPIO_PIN_EXP_IO1       (EGPIO_CHIP_ID0 | EGPIO0_EXP_IO1)
+#define EGPIO_PIN_BTN_WAKE      (EGPIO_CHIP_ID0 | EGPIO0_BTN_WAKE)
+#define EGPIO_PIN_BAT_INT       (EGPIO_CHIP_ID0 | EGPIO0_BAT_INT)
+#define EGPIO_PIN_CTP_SEL       (EGPIO_CHIP_ID0 | EGPIO0_CTP_SEL)
+#define EGPIO_PIN_CTP_INT       (EGPIO_CHIP_ID0 | EGPIO0_CTP_INT)
+
+#define EGPIO_PIN_MIC_DIS       (EGPIO_CHIP_ID1 | EGPIO1_MIC_DIS)
+#define EGPIO_PIN_HP_AMP_CS     (EGPIO_CHIP_ID1 | EGPIO1_HP_AMP_CS)
+#define EGPIO_PIN_MIC_SEL       (EGPIO_CHIP_ID1 | EGPIO1_MIC_SEL)
+#define EGPIO_PIN_HP_DET        (EGPIO_CHIP_ID1 | EGPIO1_HP_DET)
+#define EGPIO_PIN_USR0          (EGPIO_CHIP_ID1 | EGPIO1_USR0)
+#define EGPIO_PIN_USR1          (EGPIO_CHIP_ID1 | EGPIO1_USR1)
+#define EGPIO_PIN_USR2          (EGPIO_CHIP_ID1 | EGPIO1_USR2)
+#define EGPIO_PIN_USR3          (EGPIO_CHIP_ID1 | EGPIO1_USR3)
+
+#define EGPIO_PIN_MASK          0x07
+#define EGPIO_PIN_MASK_CHIP_ID  0x10
+
+int eos_egpio_pin_get(uint8_t reg, uint8_t pin, uint8_t *val);
+int eos_egpio_pin_set(uint8_t reg, uint8_t pin, uint8_t val);
diff --git a/fw/fe310/eos/dev/fxl6408.c b/fw/fe310/eos/dev/fxl6408.c
new file mode 100644
index 0000000..812c584
--- /dev/null
+++ b/fw/fe310/eos/dev/fxl6408.c
@@ -0,0 +1,60 @@
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "eos.h"
+#include "soc/i2c.h"
+
+#include "fxl6408.h"
+
+#define FXL6408_ADDR0             0x43
+#define FXL6408_ADDR1             0x44
+
+int eos_fxl6408_reg_read(uint8_t chip_id, uint8_t reg, uint8_t *data) {
+    uint8_t addr = chip_id ? FXL6408_ADDR1 : FXL6408_ADDR0;
+    int rv;
+
+    rv = eos_i2c_read8(addr, reg, data, 1);
+    return rv;
+}
+
+int eos_fxl6408_reg_write(uint8_t chip_id, uint8_t reg, uint8_t data) {
+    uint8_t addr = chip_id ? FXL6408_ADDR1 : FXL6408_ADDR0;
+    int rv;
+
+    rv = eos_i2c_write8(addr, reg, &data, 1);
+    return rv;
+}
+
+int eos_fxl6408_pin_get(uint8_t chip_id, uint8_t reg, uint8_t pin, uint8_t *val) {
+    uint8_t addr = chip_id ? FXL6408_ADDR1 : FXL6408_ADDR0;
+    uint8_t data;
+    int rv;
+
+    if (reg == FXL6408_REG_ID_CTRL) return EOS_ERR;
+
+    rv = eos_i2c_read8(addr, reg, &data, 1);
+    return rv;
+
+    *val = data >> pin;
+    *val &= 0x01;
+
+    return EOS_OK;
+}
+
+int eos_fxl6408_pin_set(uint8_t chip_id, uint8_t reg, uint8_t pin, uint8_t val) {
+    uint8_t addr = chip_id ? FXL6408_ADDR1 : FXL6408_ADDR0;
+    uint8_t data;
+    int rv;
+
+    if (reg == FXL6408_REG_ID_CTRL || FXL6408_REG_I_STATE) return EOS_ERR;
+
+    rv = eos_i2c_read8(addr, reg, &data, 1);
+    return rv;
+
+    val &= 0x01;
+    data &= ~(1 << pin);
+    if (val) data |= (1 << pin);
+
+    rv = eos_i2c_write8(addr, reg, &data, 1);
+    return rv;
+}
diff --git a/fw/fe310/eos/dev/fxl6408.h b/fw/fe310/eos/dev/fxl6408.h
new file mode 100644
index 0000000..f0e9c3a
--- /dev/null
+++ b/fw/fe310/eos/dev/fxl6408.h
@@ -0,0 +1,17 @@
+#include <stdint.h>
+
+#define FXL6408_REG_ID_CTRL     0x01
+#define FXL6408_REG_IO_DIR      0x03
+#define FXL6408_REG_O_STATE     0x05
+#define FXL6408_REG_O_HIZ       0x07
+#define FXL6408_REG_I_DEFAULT   0x09
+#define FXL6408_REG_PULL_ENA    0x0B
+#define FXL6408_REG_PULL_DIR    0x0D
+#define FXL6408_REG_I_STATE     0x0F
+#define FXL6408_REG_INT_MASK    0x11
+#define FXL6408_REG_INT_STATE   0x13
+
+int eos_fxl6408_reg_read(uint8_t chip_id, uint8_t reg, uint8_t *data);
+int eos_fxl6408_reg_write(uint8_t chip_id, uint8_t reg, uint8_t data);
+int eos_fxl6408_pin_get(uint8_t chip_id, uint8_t reg, uint8_t pin, uint8_t *val);
+int eos_fxl6408_pin_set(uint8_t chip_id, uint8_t reg, uint8_t pin, uint8_t val);
\ No newline at end of file