i2c_porting.c 文件参考

#include "i2c_porting.h"
#include "hal_i2c.h"
#include "hal_i2c_v150.h"
#include "hal_i2c_v150_comm.h"
#include "pinctrl.h"
#include "osal_interrupt.h"
#include "chip_core_irq.h"
#include "arch_port.h"

i2c_porting.c 的引用(Include)关系图:

结构体
struct	i2c_irq_handler

宏定义
#define	BUS_CLOCK_TIME_24M   24000000UL
#define	BUS_CLOCK_TIME_40M   40000000UL
#define	I2C_CLOCK_DEFAULT   BUS_CLOCK_TIME_40M

类型定义
typedef void(*	i2c_porting_irq_handler) (void)
typedef struct i2c_irq_handler	i2c_irq_handler_t

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.

变量
uintptr_t	g_i2c_base_addrs [I2C_BUS_MAX_NUMBER]
uint32_t	g_i2c_clock [I2C_BUS_MAX_NUMBER]

宏定义说明

BUS_CLOCK_TIME_24M

#define BUS_CLOCK_TIME_24M   24000000UL

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

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

BUS_CLOCK_TIME_40M

#define BUS_CLOCK_TIME_40M   40000000UL

I2C_CLOCK_DEFAULT

#define I2C_CLOCK_DEFAULT   BUS_CLOCK_TIME_40M

类型定义说明

i2c_irq_handler_t

typedef struct i2c_irq_handler i2c_irq_handler_t

i2c_porting_irq_handler

typedef void(* i2c_porting_irq_handler) (void)

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.

变量说明

g_i2c_base_addrs

uintptr_t g_i2c_base_addrs[I2C_BUS_MAX_NUMBER]

初始值:

= {
    (uintptr_t)I2C_BUS_0_BASE_ADDR,
    (uintptr_t)I2C_BUS_1_BASE_ADDR,
 
 
 
 
 
 
}

g_i2c_clock

uint32_t g_i2c_clock[I2C_BUS_MAX_NUMBER]

初始值:

= {
    (uint32_t)  40000000UL  ,
    (uint32_t)  40000000UL  ,
 
 
 
 
 
 
}