i2c_porting.h 文件参考

#include <stdint.h>
#include <stdbool.h>
#include "platform_core.h"

i2c_porting.h 的引用(Include)关系图:

此图展示该文件直接或间接的被哪些文件引用了:

浏览源代码.

宏定义
#define	I2C_BUS_MAX_NUM   I2C_BUS_MAX_NUMBER
#define	I2C_0_SCL_PIN_CTRL_REG   0x4400D048
#define	I2C_0_SDA_PIN_CTRL_REG   0x4400D044
#define	I2C_1_SCL_PIN_CTRL_REG   0x4400D040
#define	I2C_1_SDA_PIN_CTRL_REG   0x4400D03C
#define	PIN_CTRL_MODE_2   0x2

函数
uintptr_t	i2c_porting_base_addr_get (i2c_bus_t bus)
	Get the base address of a specified I2C.
void	i2c_port_set_clock_value (i2c_bus_t bus, uint32_t clock)
	Set the bus clock of specified i2c.
uint32_t	i2c_port_get_clock_value (i2c_bus_t bus)
	Get the bus clock of specified i2c.
void	i2c_port_register_irq (i2c_bus_t bus)
	Register the interrupt of I2C.
void	i2c_port_unregister_irq (i2c_bus_t bus)
	Unregister the interrupt of I2C.
uint32_t	i2c_porting_lock (i2c_bus_t bus)
	I2C lock.
void	i2c_porting_unlock (i2c_bus_t bus, uint32_t irq_sts)
	I2C unlock.

宏定义说明

I2C_0_SCL_PIN_CTRL_REG

#define I2C_0_SCL_PIN_CTRL_REG   0x4400D048

I2C_0_SDA_PIN_CTRL_REG

#define I2C_0_SDA_PIN_CTRL_REG   0x4400D044

I2C_1_SCL_PIN_CTRL_REG

#define I2C_1_SCL_PIN_CTRL_REG   0x4400D040

I2C_1_SDA_PIN_CTRL_REG

#define I2C_1_SDA_PIN_CTRL_REG   0x4400D03C

I2C_BUS_MAX_NUM

#define I2C_BUS_MAX_NUM   I2C_BUS_MAX_NUMBER

Copyright (c) HiSilicon (Shanghai) Technologies Co., Ltd. 2022-2022. All rights reserved.

Description: Provides i2c port template
History:
2022-08-15， Create file.

PIN_CTRL_MODE_2

#define PIN_CTRL_MODE_2   0x2

函数说明

i2c_port_get_clock_value()

uint32_t i2c_port_get_clock_value

(

i2c_bus_t

bus

)

Get the bus clock of specified i2c.

参数

[in]

bus

The I2C bus. see i2c_bus_t

返回

The bus clock of specified I2C.

i2c_port_register_irq()

void i2c_port_register_irq

(

i2c_bus_t

bus

)

Register the interrupt of I2C.

i2c_port_set_clock_value()

void i2c_port_set_clock_value	(	i2c_bus_t	bus,
		uint32_t	clock
	)

Set the bus clock of specified i2c.

参数

[in]	bus	The I2C bus. see i2c_bus_t
[in]	clock	The bus clock of specified I2C.

i2c_port_unregister_irq()

void i2c_port_unregister_irq

(

i2c_bus_t

bus

)

Unregister the interrupt of I2C.

i2c_porting_base_addr_get()

uintptr_t i2c_porting_base_addr_get

(

i2c_bus_t

bus

)

Get the base address of a specified I2C.

参数

[in]

bus

The bus index of I2C.

返回

The base address of specified I2C.

i2c_porting_lock()

uint32_t i2c_porting_lock

(

i2c_bus_t

bus

)

I2C lock.

参数

[in]

bus

The bus index of I2C.

返回

The irq lock number of I2C.

i2c_porting_unlock()

void i2c_porting_unlock	(	i2c_bus_t	bus,
		uint32_t	irq_sts
	)

I2C unlock.

参数

[in]	bus	The bus index of I2C.
[in]	irq_sts	The irq lock number of I2C.