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1.适配CH32 i2c驱动。

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This commit is contained in:
MacRsh
2023-08-30 23:15:05 +08:00
parent 78df25892a
commit 936aa5ee9a
2 changed files with 50 additions and 68 deletions
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101
bsp/wch/driver/drv_i2c.c
View File

@@ -10,94 +10,81 @@
#include "drv_i2c.h"
#if (MR_CONF_I2C == MR_CONF_ENABLE)
#if (MR_CFG_I2C == MR_CFG_ENABLE)
enum
static struct ch32_soft_i2c_bus_data ch32_soft_i2c_bus_data[] =
{
#ifdef MR_BSP_I2C_1
{"i2c1", RCC_APB2Periph_GPIOA, GPIOA, GPIO_Pin_0, GPIO_Pin_1},
#endif
#ifdef MR_BSP_I2C_2
{"i2c2", RCC_APB2Periph_GPIOB, GPIOB, GPIO_Pin_0, GPIO_Pin_1},
#endif
#ifdef MR_BSP_I2C_3
{"i2c3", RCC_APB2Periph_GPIOC, GPIOC, GPIO_Pin_0, GPIO_Pin_1},
#endif
};
static struct mr_soft_i2c_bus soft_i2c_bus_device[MR_ARRAY_SIZE(ch32_soft_i2c_bus_data)];
static mr_err_t ch32_soft_i2c_bus_configure(mr_soft_i2c_bus_t i2c_bus)
{
#ifdef BSP_I2C_1
I2C1_INDEX,
#endif
#ifdef BSP_I2C_2
I2C2_INDEX,
#endif
#ifdef BSP_I2C_3
I2C3_INDEX,
#endif
};
static struct ch32_soft_i2c ch32_soft_i2c[] =
{
#ifdef BSP_I2C_1
{"i2c1", {RCC_APB2Periph_GPIOA, GPIOA, GPIO_Pin_0, GPIO_Pin_1}},
#endif
#ifdef BSP_I2C_2
{"i2c2", {RCC_APB2Periph_GPIOB, GPIOB, GPIO_Pin_0, GPIO_Pin_1}},
#endif
#ifdef BSP_I2C_3
{"i2c3", {RCC_APB2Periph_GPIOC, GPIOC, GPIO_Pin_0, GPIO_Pin_1}},
#endif
};
static struct mr_soft_i2c_bus soft_i2c_bus_device[mr_array_get_length(ch32_soft_i2c)];
mr_err_t ch32_soft_i2c_configure(mr_soft_i2c_bus_t i2c_bus)
{
struct ch32_soft_i2c *driver = (struct ch32_soft_i2c *)i2c_bus->i2c_bus.device.data;
struct ch32_soft_i2c_bus_data *soft_i2c_bus_data = (struct ch32_soft_i2c_bus_data *)i2c_bus->i2c_bus.device.data;
GPIO_InitTypeDef GPIO_InitStructure = {0};
RCC_APB2PeriphClockCmd(driver->info.gpio_periph_clock, ENABLE);
GPIO_InitStructure.GPIO_Pin = driver->info.scl_gpio_pin | driver->info.sda_gpio_pin;
RCC_APB2PeriphClockCmd(soft_i2c_bus_data->gpio_periph_clock, ENABLE);
GPIO_InitStructure.GPIO_Pin = soft_i2c_bus_data->scl_gpio_pin | soft_i2c_bus_data->sda_gpio_pin;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(driver->info.gpio_port, &GPIO_InitStructure);
GPIO_Init(soft_i2c_bus_data->gpio_port, &GPIO_InitStructure);
return MR_ERR_OK;
}
void ch32_soft_i2c_scl_write(mr_soft_i2c_bus_t i2c_bus, mr_uint8_t value)
static void ch32_soft_i2c_bus_scl_write(mr_soft_i2c_bus_t i2c_bus, mr_uint8_t value)
{
struct ch32_soft_i2c *driver = (struct ch32_soft_i2c *)i2c_bus->i2c_bus.device.data;
struct ch32_soft_i2c_bus_data *soft_i2c_bus_data = (struct ch32_soft_i2c_bus_data *)i2c_bus->i2c_bus.device.data;
GPIO_WriteBit(driver->info.gpio_port, driver->info.scl_gpio_pin, value);
GPIO_WriteBit(soft_i2c_bus_data->gpio_port, soft_i2c_bus_data->scl_gpio_pin, value);
}
void ch32_soft_i2c_sda_write(mr_soft_i2c_bus_t i2c_bus, mr_uint8_t value)
static void ch32_soft_i2c_bus_sda_write(mr_soft_i2c_bus_t i2c_bus, mr_uint8_t value)
{
struct ch32_soft_i2c *driver = (struct ch32_soft_i2c *)i2c_bus->i2c_bus.device.data;
struct ch32_soft_i2c_bus_data *soft_i2c_bus_data = (struct ch32_soft_i2c_bus_data *)i2c_bus->i2c_bus.device.data;
GPIO_WriteBit(driver->info.gpio_port, driver->info.sda_gpio_pin, value);
GPIO_WriteBit(soft_i2c_bus_data->gpio_port, soft_i2c_bus_data->sda_gpio_pin, value);
}
mr_uint8_t ch32_soft_i2c_sda_read(mr_soft_i2c_bus_t i2c_bus)
static mr_uint8_t ch32_soft_i2c_bus_sda_read(mr_soft_i2c_bus_t i2c_bus)
{
struct ch32_soft_i2c *driver = (struct ch32_soft_i2c *)i2c_bus->i2c_bus.device.data;
struct ch32_soft_i2c_bus_data *soft_i2c_bus_data = (struct ch32_soft_i2c_bus_data *)i2c_bus->i2c_bus.device.data;
return GPIO_ReadOutputDataBit(driver->info.gpio_port, driver->info.sda_gpio_pin);
return GPIO_ReadOutputDataBit(soft_i2c_bus_data->gpio_port, soft_i2c_bus_data->sda_gpio_pin);
}
mr_err_t ch32_soft_i2c_init(void)
mr_err_t drv_soft_i2c_bus_init(void)
{
static struct mr_soft_i2c_ops drv_ops =
{
ch32_soft_i2c_bus_configure,
ch32_soft_i2c_bus_scl_write,
ch32_soft_i2c_bus_sda_write,
ch32_soft_i2c_bus_sda_read,
};
mr_size_t count = MR_ARRAY_SIZE(soft_i2c_bus_device);
mr_err_t ret = MR_ERR_OK;
mr_size_t count = mr_array_get_length(soft_i2c_bus_device);
static struct mr_soft_i2c_ops driver =
{
ch32_soft_i2c_configure,
ch32_soft_i2c_scl_write,
ch32_soft_i2c_sda_write,
ch32_soft_i2c_sda_read,
};
while (count--)
{
ret = mr_soft_i2c_bus_add(&soft_i2c_bus_device[count],
ch32_soft_i2c[count].name,
&ch32_soft_i2c[count],
&driver);
ch32_soft_i2c_bus_data[count].name,
&drv_ops,
&ch32_soft_i2c_bus_data[count]);
MR_ASSERT(ret == MR_ERR_OK);
}
return MR_ERR_OK;
}
AUTO_INIT_DRIVER_EXPORT(ch32_soft_i2c_init);
MR_INIT_DRIVER_EXPORT(drv_soft_i2c_bus_init);
#endif /* MR_CONF_I2C */
#endif

17
bsp/wch/driver/drv_i2c.h
View File

@@ -13,23 +13,18 @@
#include "device/i2c/i2c.h"
#if (MR_CONF_I2C == MR_CONF_ENABLE)
#if (MR_CFG_I2C == MR_CFG_ENABLE)
struct ch32_soft_i2c_info
struct ch32_soft_i2c_bus_data
{
const char *name;
mr_uint32_t gpio_periph_clock;
GPIO_TypeDef *gpio_port;
mr_uint16_t scl_gpio_pin;
mr_uint16_t sda_gpio_pin;
};
struct ch32_soft_i2c
{
const char *name;
#endif
struct ch32_soft_i2c_info info;
};
#endif /* MR_CONF_I2C */
#endif /* _DRV_I2C_H_ */
#endif /* _DRV_I2C_H_ */