mirror of
https://github.com/pvvx/RTL00_WEB.git
synced 2024-11-26 07:54:19 +00:00
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/*
|
|
* i2c_drv.h
|
|
*
|
|
* Created on: 02/05/2017.
|
|
* Author: pvvx
|
|
*/
|
|
|
|
#ifndef PROJECT_INC_DRIVER_I2C_DRV_H_
|
|
#define PROJECT_INC_DRIVER_I2C_DRV_H_
|
|
|
|
#include "device.h"
|
|
|
|
typedef struct _I2C_HND_ {
|
|
signed char status; // _i2c_status_e
|
|
unsigned char idx; // Номер контроллера I2C
|
|
unsigned char io_sel; // Location Index(Pin Mux Selection): S0 -> PC_4, PC_5
|
|
unsigned char mode; // _i2c_mode_e, if(I2C_FIXED_SPEED_MODE != 0) user set -> i2c_mode_e
|
|
void * base_regs;
|
|
} i2c_drv_t, *i2c_drv_p;
|
|
|
|
typedef enum
|
|
{
|
|
DRV_I2C_OFF = 0, // IC I2C DeInit
|
|
DRV_I2C_OK = 0, // DRV ret Ok
|
|
DRV_I2C_IC_OFF = 1, // IC I2C Off
|
|
DRV_I2C_IC_ENABLE = 2, // IC I2C On
|
|
DRV_I2C_ERR = -1, // DRV ret err
|
|
DRV_I2C_ABORT = -1, // IC I2C Abort
|
|
DRV_I2C_TIMEOUT = -3 // IC I2C / DRV ret Timeout
|
|
} _i2c_status_e;
|
|
|
|
|
|
typedef enum
|
|
{
|
|
DRV_I2C_SS_MODE = 1, // Standard Mode (100 Kbps)
|
|
DRV_I2C_FS_MODE = 2, // Fast Mode (400 Kbps)
|
|
DRV_I2C_HS_MODE = 3 // Fast Mode Plus (1 Mbps)
|
|
} _i2c_mode_e;
|
|
|
|
#define DRV_I2C_POOL_TIMEOUT 16384
|
|
#define _i2c_deinit(p) _i2c_ic_off(p)
|
|
|
|
// Setup
|
|
int _i2c_setup(i2c_drv_t *pi2c, PinName sda, PinName scl, unsigned char mode); // _i2c_mode_e
|
|
int _i2c_set_speed(i2c_drv_t *pi2c, uint32 clk_hz);
|
|
// Work
|
|
int _i2c_init(i2c_drv_t *pi2c);
|
|
int _i2c_write(i2c_drv_t *pi2c, uint32 address, const char *data, int length, int stop);
|
|
int _i2c_read(i2c_drv_t *pi2c, uint32 address, const char *data, int length, int stop);
|
|
// Utils
|
|
int _i2c_break(i2c_drv_t *pi2c);
|
|
void _i2c_ic_off(i2c_drv_t *pi2c);
|
|
|
|
|
|
#endif /* PROJECT_INC_DRIVER_I2C_DRV_H_ */
|