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

5 files changed, 39 insertions, 258 deletions

diff --git a/bsp/ESP/ESP32_C3/.ci/attachconfig/ci.attachconfig.yml b/bsp/ESP/ESP32_C3/.ci/attachconfig/ci.attachconfig.yml
index a2a990be1c..ca2eddb6ad 100644
--- a/bsp/ESP/ESP32_C3/.ci/attachconfig/ci.attachconfig.yml
+++ b/bsp/ESP/ESP32_C3/.ci/attachconfig/ci.attachconfig.yml
@@ -24,8 +24,11 @@ devices.swi2c:
     depends:
       - devices.i2c
     kconfig:
-      - CONFIG_BSP_USING_SW_I2C=y
-      - CONFIG_BSP_USING_SW_I2C0=y
+      - CONFIG_RT_USING_SOFT_I2C=y
+      - CONFIG_RT_USING_SOFT_I2C0=y
+      - CONFIG_RT_SOFT_I2C0_SCL_PIN=19
+      - CONFIG_RT_SOFT_I2C0_SDA_PIN=18
+      - CONFIG_RT_SOFT_I2C0_BUS_NAME="swi2c0"
 devices.spi:
     kconfig:
       - CONFIG_RT_USING_SPI=y
@@ -60,4 +63,4 @@ devices.at:
       - CONFIG_RT_USING_AT=y
       - CONFIG_AT_USING_CLIENT=y
       - CONFIG_RT_USING_SAL=y
-      - CONFIG_RT_USING_NETDEV=y
\ No newline at end of file
+      - CONFIG_RT_USING_NETDEV=y
diff --git a/bsp/ESP/libraries/drivers/Kconfig b/bsp/ESP/libraries/drivers/Kconfig
index b7cb8f1275..1d2c125d59 100644
--- a/bsp/ESP/libraries/drivers/Kconfig
+++ b/bsp/ESP/libraries/drivers/Kconfig
@@ -75,25 +75,27 @@ menu "On-chip Peripheral Drivers"
             menuconfig BSP_USING_HW_I2C
                 bool "Enable HardWare I2C"
                 default n
-                
-            menuconfig BSP_USING_SW_I2C
-                bool "Enable SoftWare I2C"
+            menuconfig BSP_USING_SOFT_I2C
+                bool "Enable software I2C (swi2c)"
                 default n
-                if BSP_USING_SW_I2C
-                    config BSP_USING_SW_I2C0
-                        bool "Enable SoftWare I2C0"
-                        default n
-                        if BSP_USING_SW_I2C0
-                            config BSP_SW_I2C0_SDA_PIN
-                                int "SWI2C0 sda pin number"
-                                range 0 21
-                                default 18
-                            config BSP_SW_I2C0_SCL_PIN
-                                int "SWI2C0 scl pin number"
-                                range 0 21
-                                default 19
-                        endif
-                endif
+                select RT_USING_I2C
+                select RT_USING_SOFT_I2C
+                if BSP_USING_SOFT_I2C
+                menuconfig BSP_USING_SOFT_I2C0
+                    bool "Enable software I2C0 Bus (swi2c0)"
+                    default n
+                    select RT_USING_SOFT_I2C0
+                    if BSP_USING_SOFT_I2C0
+                        config RT_SOFT_I2C0_SCL_PIN
+                            int "swi2c0 SCL pin number"
+                            default 19
+                        config RT_SOFT_I2C0_SDA_PIN
+                            int "swi2c0 SDA pin number"
+                            default 18
+                    endif
+            endif
+
+
         endif
 
     menuconfig BSP_USING_SPI
@@ -171,4 +173,16 @@ config BSP_ENABLE_GDBSTUB
     bool "Enable ESP_GDBSTUB compontent"
     default n
 
-endmenu
\ No newline at end of file
+    config RT_SOFT_I2C0_HAS_PIN_DEFAULT
+        bool
+        default y if RT_USING_SOFT_I2C0
+
+    config RT_SOFT_I2C0_SCL_PIN_DEFAULT
+        int
+        default 19 if RT_USING_SOFT_I2C0
+
+    config RT_SOFT_I2C0_SDA_PIN_DEFAULT
+        int
+        default 18 if RT_USING_SOFT_I2C0
+
+endmenu
diff --git a/bsp/ESP/libraries/drivers/SConscript b/bsp/ESP/libraries/drivers/SConscript
index 74d91cca65..c8d534e164 100644
--- a/bsp/ESP/libraries/drivers/SConscript
+++ b/bsp/ESP/libraries/drivers/SConscript
@@ -18,9 +18,6 @@ if GetDepend('BSP_USING_ADC'):
 if GetDepend('BSP_USING_I2C'):
     src += ['drv_hw_i2c.c']
     
-if GetDepend('BSP_USING_SW_I2C'):
-    src += ['drv_sw_i2c.c']
-
 if GetDepend('BSP_USING_PWM'):
     src += ['drv_pwm.c']
 
diff --git a/bsp/ESP/libraries/drivers/drv_sw_i2c.c b/bsp/ESP/libraries/drivers/drv_sw_i2c.c
deleted file mode 100644
index fbfed4d71d..0000000000
--- a/bsp/ESP/libraries/drivers/drv_sw_i2c.c
+++ /dev/null
@@ -1,199 +0,0 @@
-/*
- * Copyright (c) 2006-2024 RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2024-12-07     wumingzi     first version
- */
-#include <rtthread.h>
-#include <rtdevice.h>
-#define LOG_TAG     "drv.i2c"
-#ifdef RT_USING_I2C
-#ifdef BSP_USING_SW_I2C
-#include "rthw.h"
-#include "rttypes.h"
-#include <rtdbg.h>
-#include "driver/gpio.h"
-#include "drv_sw_i2c.h"
-
-#if defined(BSP_USING_SW_I2C0)
-#define SW_I2C0_BUS_CONFIG                               \
-    {                                                    \
-        .scl = BSP_SW_I2C0_SCL_PIN,                      \
-        .sda = BSP_SW_I2C0_SDA_PIN,                      \
-        .bus_name = "i2c0",                              \
-    }
-#endif
-
-static const struct esp32c3_soft_i2c_config soft_i2c_config[] =
-{
-#if defined(BSP_USING_SW_I2C0)
-    SW_I2C0_BUS_CONFIG,
-#endif
-};
-
-static struct esp32c3_i2c i2c_obj[sizeof(soft_i2c_config) / sizeof(soft_i2c_config[0])];
-
-/**
-  * @brief  This function initializes the i2c pin.
-  * @param  i2c
-  * @retval None
-  */
-static void esp32c3_i2c_gpio_init(struct esp32c3_i2c *i2c)
-{
-    struct esp32c3_soft_i2c_config* cfg = (struct esp32c3_soft_i2c_config*)i2c->ops.data;
-    rt_pin_mode(cfg->scl, PIN_MODE_OUTPUT_OD);
-    rt_pin_mode(cfg->sda, PIN_MODE_OUTPUT_OD);
-
-    gpio_set_pull_mode(cfg->sda, GPIO_FLOATING);
-    gpio_set_pull_mode(cfg->scl, GPIO_FLOATING);
-
-    gpio_set_level(cfg->scl, PIN_HIGH);
-    gpio_set_level(cfg->sda, PIN_HIGH);
-}
-
-/**
-  * @brief  This function sets the sda pin.
-  * @param  data, state
-  * @retval None
-  */
-static void esp32c3_set_sda(void *data, rt_int32_t state)
-{
-    struct esp32c3_soft_i2c_config* cfg = (struct esp32c3_soft_i2c_config*)data;
-    /*rt_pin_mode(cfg->sda, PIN_MODE_OUTPUT_OD);*/
-    if (state)
-    {
-        gpio_set_level(cfg->sda, PIN_HIGH);
-    }
-    else
-    {
-        gpio_set_level(cfg->sda, PIN_LOW);
-    }
-}
-
-/**
-  * @brief  This function sets the scl pin.
-  * @param  data, state
-  * @retval None
-  */
-static void esp32c3_set_scl(void *data, rt_int32_t state)
-{
-    struct esp32c3_soft_i2c_config* cfg = (struct esp32c3_soft_i2c_config*)data;
-    if (state)
-    {
-        gpio_set_level(cfg->scl, PIN_HIGH);
-    }
-    else
-    {
-        gpio_set_level(cfg->scl, PIN_LOW);
-    }
-}
-
-/**
-  * @brief  This function gets the sda pin state.
-  * @param  data
-  * @retval None
-  */
-static rt_int32_t esp32c3_get_sda(void *data)
-{
-    struct esp32c3_soft_i2c_config* cfg = (struct esp32c3_soft_i2c_config*)data;
-    return gpio_get_level(cfg->sda);
-}
-
-/**
-  * @brief  This function gets the scl pin state.
-  * @param  data
-  * @retval None
-  */
-static rt_int32_t esp32c3_get_scl(void *data)
-{
-    struct esp32c3_soft_i2c_config* cfg = (struct esp32c3_soft_i2c_config*)data;
-    return gpio_get_level(cfg->scl);
-}
-
-/**
-  * @brief  The time delay function.
-  * @param  us
-  * @retval None
-  */
-static void esp32c3_udelay(rt_uint32_t us)
-{
-    rt_hw_us_delay(us);
-}
-
-/*
- * if i2c is locked, this function will unlock it
- *
- * @param esp32 config class
- *
- * @return RT_EOK indicates successful unlock.
- */
-/* */
-static rt_err_t esp32c3_i2c_bus_unlock(const struct esp32c3_soft_i2c_config *cfg)
-{
-    rt_int32_t i = 0;
-
-    if (PIN_LOW == rt_pin_read(cfg->sda))
-    {
-        /* 输出9个时钟 解锁IIC死锁  */
-        while (i++ < 9)
-        {
-            gpio_set_level(cfg->scl, PIN_HIGH);
-            esp32c3_udelay(100);
-            gpio_set_level(cfg->scl, PIN_LOW);
-            esp32c3_udelay(100);
-        }
-    }
-    if (PIN_LOW == gpio_get_level(cfg->sda))
-    {
-        return -RT_ERROR;
-    }
-    return RT_EOK;
-}
-
-static const struct rt_i2c_bit_ops esp32c3_bit_ops_default =
-{
-    .data     = RT_NULL,
-    .set_sda  = esp32c3_set_sda,
-    .set_scl  = esp32c3_set_scl,
-    .get_sda  = esp32c3_get_sda,
-    .get_scl  = esp32c3_get_scl,
-    .udelay   = esp32c3_udelay,
-    .delay_us = 1,
-    .timeout  = 100
-};
-
-int rt_sw_i2c_init(void)
-{
-    /* I2C设备数量 */
-    rt_size_t obj_num = sizeof(i2c_obj) / sizeof(struct esp32c3_i2c);
-    rt_err_t result;
-    /* 循环初始化 */
-    for (int i = 0; i < obj_num; i++)
-    {
-        /* 注册方法 */
-        i2c_obj[i].ops = esp32c3_bit_ops_default;
-        /* 设备硬件数据 */
-        i2c_obj[i].ops.data = (void*)&soft_i2c_config[i];
-        /* 保存设备方法 */
-        i2c_obj[i].i2c_bus.priv = &i2c_obj[i].ops;
-
-        esp32c3_i2c_gpio_init(&i2c_obj[i]);
-        result = rt_i2c_bit_add_bus(&i2c_obj[i].i2c_bus, soft_i2c_config[i].bus_name);
-        RT_ASSERT(result == RT_EOK);
-
-        esp32c3_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_APP_EXPORT(rt_sw_i2c_init);
-
-#endif /* BSP_USING_SW_I2C */
-#endif /* RT_USING_I2C */
\ No newline at end of file
diff --git a/bsp/ESP/libraries/drivers/drv_sw_i2c.h b/bsp/ESP/libraries/drivers/drv_sw_i2c.h
deleted file mode 100644
index ab353e473f..0000000000
--- a/bsp/ESP/libraries/drivers/drv_sw_i2c.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright (c) 2006-2024 RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2024-12-07     wumingzi     first version
- */
-#ifndef __DRV_HW_I2C_H__
-#define __DRV_HW_I2C_H__
-
-#include <rtthread.h>
-#include <rtdevice.h>
-#include "sdkconfig.h"
-
-/* esp32c3 config class */
-struct esp32c3_soft_i2c_config
-{
-    rt_uint8_t scl;
-    rt_uint8_t sda;
-    const char *bus_name;
-};
-
-/* esp32c3 i2c dirver class */
-struct esp32c3_i2c
-{
-    struct rt_i2c_bit_ops ops;
-    struct rt_i2c_bus_device i2c_bus;
-};
-
-int rt_hw_i2c_init(void);
-
-#endif /* __DRV_HW_I2C_H__ */
\ No newline at end of file