[bsp][drivers][soft_i2c] unify the software I2C driver

3 files changed, 0 insertions, 238 deletions

diff --git a/bsp/raspberry-pico/libraries/Drivers/SConscript b/bsp/raspberry-pico/libraries/Drivers/SConscript
index 5afbe70b28..20d95d2b14 100644
--- a/bsp/raspberry-pico/libraries/Drivers/SConscript
+++ b/bsp/raspberry-pico/libraries/Drivers/SConscript
@@ -10,9 +10,6 @@ if GetDepend('BSP_USING_PIN'):
 if GetDepend('BSP_USING_UART'):
     src += ['drv_uart.c']
 
-if GetDepend('BSP_USING_SOFT_I2C'):
-    src += ['drv_soft_i2c.c']
-
 if GetDepend('BSP_USING_SOFT_SPI'):
     src += ['drv_soft_spi.c']
 
diff --git a/bsp/raspberry-pico/libraries/Drivers/drv_soft_i2c.c b/bsp/raspberry-pico/libraries/Drivers/drv_soft_i2c.c
deleted file mode 100644
index bbda17c61c..0000000000
--- a/bsp/raspberry-pico/libraries/Drivers/drv_soft_i2c.c
+++ /dev/null
@@ -1,189 +0,0 @@
-/*
- * Copyright (c) 2006-2023, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2023/06/01     chushicheng  first version
- */
-#include "drv_soft_i2c.h"
-
-#ifdef BSP_USING_SOFT_I2C
-#define DBG_LEVEL   DBG_LOG
-#include <rtdbg.h>
-#define LOG_TAG "DRV.I2C"
-
-static const struct pico_soft_i2c_config soft_i2c_config[] =
-{
-#ifdef BSP_USING_SOFT_I2C1
-    I2C1_BUS_CONFIG,
-#endif
-};
-
-static struct pico_i2c i2c_obj[sizeof(soft_i2c_config) / sizeof(soft_i2c_config[0])];
-
-/**
- * This function initializes the i2c pin.
- *
- * @param pico i2c dirver class.
- */
-static void pico_i2c_gpio_init(struct pico_i2c *i2c)
-{
-    struct pico_soft_i2c_config* cfg = (struct pico_soft_i2c_config*)i2c->ops.data;
-
-    rt_pin_mode(cfg->scl, PIN_MODE_OUTPUT_OD);
-    rt_pin_mode(cfg->sda, PIN_MODE_OUTPUT_OD);
-    rt_pin_write(cfg->scl, PIN_HIGH);
-    rt_pin_write(cfg->sda, PIN_HIGH);
-}
-
-static void pico_i2c_pin_init(void)
-{
-    rt_size_t obj_num = sizeof(i2c_obj) / sizeof(struct pico_i2c);
-
-    for(rt_size_t i = 0; i < obj_num; i++)
-    {
-        pico_i2c_gpio_init(&i2c_obj[i]);
-    }
-}
-
-/**
- * This function sets the sda pin.
- *
- * @param pico config class.
- * @param The sda pin state.
- */
-static void pico_set_sda(void *data, rt_int32_t state)
-{
-    struct pico_soft_i2c_config* cfg = (struct pico_soft_i2c_config*)data;
-    if (state)
-    {
-        rt_pin_write(cfg->sda, PIN_HIGH);
-    }
-    else
-    {
-        rt_pin_write(cfg->sda, PIN_LOW);
-    }
-}
-
-/**
- * This function sets the scl pin.
- *
- * @param pico config class.
- * @param The scl pin state.
- */
-static void pico_set_scl(void *data, rt_int32_t state)
-{
-    struct pico_soft_i2c_config* cfg = (struct pico_soft_i2c_config*)data;
-    if (state)
-    {
-        rt_pin_write(cfg->scl, PIN_HIGH);
-    }
-    else
-    {
-        rt_pin_write(cfg->scl, PIN_LOW);
-    }
-}
-
-/**
- * This function gets the sda pin state.
- *
- * @param The sda pin state.
- */
-static rt_int32_t pico_get_sda(void *data)
-{
-    struct pico_soft_i2c_config* cfg = (struct pico_soft_i2c_config*)data;
-    return rt_pin_read(cfg->sda);
-}
-
-/**
- * This function gets the scl pin state.
- *
- * @param The scl pin state.
- */
-static rt_int32_t pico_get_scl(void *data)
-{
-    struct pico_soft_i2c_config* cfg = (struct pico_soft_i2c_config*)data;
-    return rt_pin_read(cfg->scl);
-}
-
-/**
- * The time delay function.
- *
- * @param microseconds.
- */
-static void pico_udelay(rt_uint32_t us)
-{
-    busy_wait_us_32(us);
-}
-
-static const struct rt_i2c_bit_ops pico_bit_ops_default =
-{
-    .data     = RT_NULL,
-    .pin_init = pico_i2c_pin_init,
-    .set_sda  = pico_set_sda,
-    .set_scl  = pico_set_scl,
-    .get_sda  = pico_get_sda,
-    .get_scl  = pico_get_scl,
-    .udelay   = pico_udelay,
-    .delay_us = 1,
-    .timeout  = 100,
-    .i2c_pin_init_flag = RT_FALSE
-};
-
-/**
- * if i2c is locked, this function will unlock it
- *
- * @param pico config class
- *
- * @return RT_EOK indicates successful unlock.
- */
-static rt_err_t pico_i2c_bus_unlock(const struct pico_soft_i2c_config *cfg)
-{
-    rt_int32_t i = 0;
-
-    if (PIN_LOW == rt_pin_read(cfg->sda))
-    {
-        while (i++ < 9)
-        {
-            rt_pin_write(cfg->scl, PIN_HIGH);
-            pico_udelay(100);
-            rt_pin_write(cfg->scl, PIN_LOW);
-            pico_udelay(100);
-        }
-    }
-    if (PIN_LOW == rt_pin_read(cfg->sda))
-    {
-        return -RT_ERROR;
-    }
-
-    return RT_EOK;
-}
-
-/* I2C initialization function */
-int rt_soft_i2c_init(void)
-{
-    rt_err_t result;
-
-    for (rt_size_t i = 0; i < sizeof(i2c_obj) / sizeof(struct pico_i2c); i++)
-    {
-        i2c_obj[i].ops = pico_bit_ops_default;
-        i2c_obj[i].ops.data = (void*)&soft_i2c_config[i];
-        i2c_obj[i].i2c_bus.priv = &i2c_obj[i].ops;
-
-        result = rt_i2c_bit_add_bus(&i2c_obj[i].i2c_bus, soft_i2c_config[i].bus_name);
-        RT_ASSERT(result == RT_EOK);
-        pico_i2c_bus_unlock(&soft_i2c_config[i]);
-
-        LOG_D("software simulation %s init done, pin scl: %d, pin sda %d",
-        soft_i2c_config[i].bus_name,
-        soft_i2c_config[i].scl,
-        soft_i2c_config[i].sda);
-    }
-
-    return RT_EOK;
-}
-INIT_DEVICE_EXPORT(rt_soft_i2c_init);
-
-#endif /* BSP_USING_SOFT_I2C */
diff --git a/bsp/raspberry-pico/libraries/Drivers/drv_soft_i2c.h b/bsp/raspberry-pico/libraries/Drivers/drv_soft_i2c.h
deleted file mode 100644
index b5e663b673..0000000000
--- a/bsp/raspberry-pico/libraries/Drivers/drv_soft_i2c.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (c) 2006-2023, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2023/06/01     chushicheng  first version
- */
-
-#ifndef __DRV_SOFT_I2C__
-#define __DRV_SOFT_I2C__
-
-#include <rtdevice.h>
-#include "drv_gpio.h"
-#include "board.h"
-
-#ifdef BSP_USING_SOFT_I2C
-/* pico i2c dirver class */
-struct pico_i2c
-{
-    struct rt_i2c_bit_ops ops;
-    struct rt_i2c_bus_device i2c_bus;
-};
-
-/* pico config class */
-struct pico_soft_i2c_config
-{
-    rt_uint8_t scl;
-    rt_uint8_t sda;
-    const char *bus_name;
-};
-
-#ifdef BSP_USING_SOFT_I2C1
-#define I2C1_BUS_CONFIG                                  \
-    {                                                    \
-        .scl = BSP_SOFT_I2C1_SCL_PIN,                    \
-        .sda = BSP_SOFT_I2C1_SDA_PIN,                    \
-        .bus_name = "i2c1",                              \
-    }
-#endif
-
-int rt_soft_i2c_init(void);
-
-#endif /* BSP_USING_SOFT_I2C */
-#endif