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

3 files changed, 0 insertions, 240 deletions

diff --git a/bsp/synwit/libraries/SWM341_drivers/SConscript b/bsp/synwit/libraries/SWM341_drivers/SConscript
index 26bef4ca2b..bb7bb6d927 100644
--- a/bsp/synwit/libraries/SWM341_drivers/SConscript
+++ b/bsp/synwit/libraries/SWM341_drivers/SConscript
@@ -21,9 +21,6 @@ if GetDepend(['RT_USING_CAN']):
 if GetDepend(['RT_USING_CLOCK_TIME']):
     src += ['drv_timer.c']
 
-if GetDepend(['RT_USING_I2C']):
-    src += ['drv_soft_i2c.c']
-
 if GetDepend(['RT_USING_PWM']):
     src += ['drv_pwm.c']
 
diff --git a/bsp/synwit/libraries/SWM341_drivers/drv_soft_i2c.c b/bsp/synwit/libraries/SWM341_drivers/drv_soft_i2c.c
deleted file mode 100644
index f74715d03d..0000000000
--- a/bsp/synwit/libraries/SWM341_drivers/drv_soft_i2c.c
+++ /dev/null
@@ -1,219 +0,0 @@
-/*
- * Copyright (c) 2006-2022, Synwit Technology Co.,Ltd.
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2021-07-01     lik          first version
- */
-
-#include "drv_soft_i2c.h"
-
-#ifdef RT_USING_I2C
-#ifdef BSP_USING_I2C
-
-//#define DRV_DEBUG
-#define LOG_TAG "drv.i2c"
-#include <drv_log.h>
-
-#if !defined(BSP_USING_I2C0) && !defined(BSP_USING_I2C1)
-#error "Please define at least one BSP_USING_I2Cx"
-/* this driver can be disabled at menuconfig ? RT-Thread Components ? Device Drivers */
-#endif
-
-#ifdef BSP_USING_I2C0
-#define I2C0_BUS_CFG             \
-    {                            \
-        .scl = BSP_I2C0_SCL_PIN, \
-        .sda = BSP_I2C0_SDA_PIN, \
-        .name = "i2c0",          \
-    }
-#endif
-
-#ifdef BSP_USING_I2C1
-#define I2C1_BUS_CFG             \
-    {                            \
-        .scl = BSP_I2C1_SCL_PIN, \
-        .sda = BSP_I2C1_SDA_PIN, \
-        .name = "i2c1",          \
-    }
-#endif
-
-/* swm config class */
-struct swm_soft_i2c_cfg
-{
-    rt_uint8_t scl;
-    rt_uint8_t sda;
-    const char *name;
-};
-/* swm i2c dirver class */
-struct swm_soft_i2c_device
-{
-    struct rt_i2c_bit_ops ops;
-    struct rt_i2c_bus_device i2c_bus;
-};
-
-static const struct swm_soft_i2c_cfg swm_soft_i2c_cfg[] =
-    {
-#ifdef BSP_USING_I2C0
-        I2C0_BUS_CFG,
-#endif
-#ifdef BSP_USING_I2C1
-        I2C1_BUS_CFG,
-#endif
-};
-
-static struct swm_soft_i2c_device i2c_obj[sizeof(swm_soft_i2c_cfg) / sizeof(swm_soft_i2c_cfg[0])];
-
-/**
- * This function initializes the i2c pin.
- *
- * @param swm i2c dirver class.
- */
-static void swm_i2c_gpio_init(struct swm_soft_i2c_device *i2c)
-{
-    struct swm_soft_i2c_cfg *soft_i2c_cfg = (struct swm_soft_i2c_cfg *)i2c->ops.data;
-
-    rt_pin_mode(soft_i2c_cfg->scl, PIN_MODE_OUTPUT_OD);
-    rt_pin_mode(soft_i2c_cfg->sda, PIN_MODE_OUTPUT_OD);
-
-    rt_pin_write(soft_i2c_cfg->scl, PIN_HIGH);
-    rt_pin_write(soft_i2c_cfg->sda, PIN_HIGH);
-}
-
-/**
- * This function sets the sda pin.
- *
- * @param swm config class.
- * @param The sda pin state.
- */
-static void swm_i2c_set_sda(void *data, rt_int32_t state)
-{
-    struct swm_soft_i2c_cfg *soft_i2c_cfg = (struct swm_soft_i2c_cfg *)data;
-    rt_pin_mode(soft_i2c_cfg->sda, PIN_MODE_OUTPUT_OD);
-    if (state)
-    {
-        rt_pin_write(soft_i2c_cfg->sda, PIN_HIGH);
-    }
-    else
-    {
-        rt_pin_write(soft_i2c_cfg->sda, PIN_LOW);
-    }
-}
-
-/**
- * This function sets the scl pin.
- *
- * @param swm config class.
- * @param The scl pin state.
- */
-static void swm_i2c_set_scl(void *data, rt_int32_t state)
-{
-    struct swm_soft_i2c_cfg *soft_i2c_cfg = (struct swm_soft_i2c_cfg *)data;
-    rt_pin_mode(soft_i2c_cfg->scl, PIN_MODE_OUTPUT_OD);
-    if (state)
-    {
-        rt_pin_write(soft_i2c_cfg->scl, PIN_HIGH);
-    }
-    else
-    {
-        rt_pin_write(soft_i2c_cfg->scl, PIN_LOW);
-    }
-}
-
-/**
- * This function gets the sda pin state.
- *
- * @param The sda pin state.
- */
-static rt_int32_t swm_i2c_get_sda(void *data)
-{
-    struct swm_soft_i2c_cfg *soft_i2c_cfg = (struct swm_soft_i2c_cfg *)data;
-    rt_pin_mode(soft_i2c_cfg->sda, PIN_MODE_INPUT_PULLDOWN);
-    return rt_pin_read(soft_i2c_cfg->sda);
-}
-
-/**
- * This function gets the scl pin state.
- *
- * @param The scl pin state.
- */
-static rt_int32_t swm_i2c_get_scl(void *data)
-{
-    struct swm_soft_i2c_cfg *soft_i2c_cfg = (struct swm_soft_i2c_cfg *)data;
-    rt_pin_mode(soft_i2c_cfg->scl, PIN_MODE_INPUT_PULLDOWN);
-    return rt_pin_read(soft_i2c_cfg->scl);
-}
-
-/**
- * The time delay function.
- *
- * @param microseconds.
- */
-static void swm_i2c_udelay(rt_uint32_t us)
-{
-    rt_uint32_t ticks;
-    rt_uint32_t told, tnow, tcnt = 0;
-    rt_uint32_t reload = SysTick->LOAD;
-
-    ticks = us * reload / (1000000 / RT_TICK_PER_SECOND);
-    told = SysTick->VAL;
-    while (1)
-    {
-        tnow = SysTick->VAL;
-        if (tnow != told)
-        {
-            if (tnow < told)
-            {
-                tcnt += told - tnow;
-            }
-            else
-            {
-                tcnt += reload - tnow + told;
-            }
-            told = tnow;
-            if (tcnt >= ticks)
-            {
-                break;
-            }
-        }
-    }
-}
-
-static const struct rt_i2c_bit_ops swm_i2c_bit_ops =
-    {
-        .data = RT_NULL,
-        .set_sda = swm_i2c_set_sda,
-        .set_scl = swm_i2c_set_scl,
-        .get_sda = swm_i2c_get_sda,
-        .get_scl = swm_i2c_get_scl,
-        .udelay = swm_i2c_udelay,
-        .delay_us = 1,
-        .timeout = 100};
-
-/* I2C initialization function */
-int swm_i2c_init(void)
-{
-    rt_err_t result;
-
-    for (int i = 0; i < sizeof(i2c_obj) / sizeof(struct swm_soft_i2c_device); i++)
-    {
-        i2c_obj[i].ops = swm_i2c_bit_ops;
-        i2c_obj[i].ops.data = (void *)&swm_soft_i2c_cfg[i];
-        i2c_obj[i].i2c_bus.priv = &i2c_obj[i].ops;
-        swm_i2c_gpio_init(&i2c_obj[i]);
-        result = rt_i2c_bit_add_bus(&i2c_obj[i].i2c_bus, swm_soft_i2c_cfg[i].name);
-        RT_ASSERT(result == RT_EOK);
-
-        LOG_D("software simulation %s init done, pin scl: %d, pin sda %d",
-              swm_soft_i2c_cfg[i].name,
-              swm_soft_i2c_cfg[i].scl,
-              swm_soft_i2c_cfg[i].sda);
-    }
-
-    return RT_EOK;
-}
-INIT_DEVICE_EXPORT(swm_i2c_init);
-#endif /* BSP_USING_I2C */
-#endif /* RT_USING_I2C */
diff --git a/bsp/synwit/libraries/SWM341_drivers/drv_soft_i2c.h b/bsp/synwit/libraries/SWM341_drivers/drv_soft_i2c.h
deleted file mode 100644
index 60151d0e50..0000000000
--- a/bsp/synwit/libraries/SWM341_drivers/drv_soft_i2c.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * Copyright (c) 2006-2022, Synwit Technology Co.,Ltd.
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2021-07-01     lik          first version
- */
-
-#ifndef __DRV_SOFT_I2C_H__
-#define __DRV_SOFT_I2C_H__
-
-#include "board.h"
-
-int swm_i2c_init(void);
-
-#endif /* __DRV_SOFT_I2C_H__ */