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add I2C bus control api

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RiceChen
2021-04-20 00:26:28 +08:00
parent d3be5e4fcf
commit 0b9e01cced
4 changed files with 37 additions and 0 deletions
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components/drivers/include/drivers/i2c.h
+4
View File
@@ -6,6 +6,7 @@
* Change Logs:
* Date Author Notes
* 2012-04-25 weety first version
* 2021-04-20 RiceChen added support for bus control api
*/
#ifndef __I2C_H__
@@ -74,6 +75,9 @@ struct rt_i2c_bus_device *rt_i2c_bus_device_find(const char *bus_name);
rt_size_t rt_i2c_transfer(struct rt_i2c_bus_device *bus,
struct rt_i2c_msg msgs[],
rt_uint32_t num);
rt_err_t rt_i2c_control(struct rt_i2c_bus_device *bus,
rt_uint32_t cmd,
rt_uint32_t arg);
rt_size_t rt_i2c_master_send(struct rt_i2c_bus_device *bus,
rt_uint16_t addr,
rt_uint16_t flags,
components/drivers/include/drivers/i2c_dev.h
+2
View File
@@ -6,6 +6,7 @@
* Change Logs:
* Date Author Notes
* 2012-04-25 weety first version
* 2021-04-20 RiceChen added bus clock command
*/
#ifndef __I2C_DEV_H__
@@ -21,6 +22,7 @@ extern "C" {
#define RT_I2C_DEV_CTRL_ADDR 0x21
#define RT_I2C_DEV_CTRL_TIMEOUT 0x22
#define RT_I2C_DEV_CTRL_RW 0x23
#define RT_I2C_DEV_CTRL_CLK 0x24
struct rt_i2c_priv_data
{