sdrv_i2c.h

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#ifndef SDRV_I2C_DRV_H_
#define SDRV_I2C_DRV_H_
 
#include <types.h>
#include <sdrv_common.h>
 
enum {
    /* transfer stat group */
    SDRV_I2CDRV_TRANS_OK = SDRV_STATUS_OK,
    SDRV_I2CDRV_TRANS_GO = SDRV_ERROR_STATUS(SDRV_STATUS_GROUP_I2C, 11),
    SDRV_I2CDRV_TRANS_NAK = SDRV_ERROR_STATUS(SDRV_STATUS_GROUP_I2C, 12),
    SDRV_I2CDRV_TRANS_ERR = SDRV_ERROR_STATUS(SDRV_STATUS_GROUP_I2C, 13),
    SDRV_I2CDRV_TRANS_ABORT = SDRV_ERROR_STATUS(SDRV_STATUS_GROUP_I2C, 14),
    SDRV_I2CDRV_TRANS_TIMEOUT = SDRV_ERROR_STATUS(SDRV_STATUS_GROUP_I2C, 15),
};
 
typedef enum {
    SDRV_I2CDRV_MASTER = 1, 
    SDRV_I2CDRV_SLAVE,      
} sdrv_i2cdrv_opmode_t;
 
typedef enum {
    SDRV_I2CDRV_SSPEED = 1, 
    SDRV_I2CDRV_FSPEED,     
    SDRV_I2CDRV_PSPEED,     
    SDRV_I2CDRV_HSPEED,     
    SDRV_I2CDRV_USPEED,     
} sdrv_i2cdrv_speed_t;
 
typedef enum {
    SDRV_I2CDRV_POLL = 1, 
    SDRV_I2CDRV_INTP,     
} sdrv_i2cdrv_tsmode_t;
 
typedef enum {
    SDRV_I2CDRV_BUS_IDLE = 1, 
    SDRV_I2CDRV_BUS_BUSY,     
} sdrv_i2cdrv_bus_stat_t;
 
typedef status_t sdrv_i2cdrv_trans_stat_t;
typedef struct sdrv_i2c_cfg sdrv_i2c_cfg_t;
typedef struct sdrv_i2cdrv_mctrl sdrv_i2cdrv_mctrl_t;
typedef struct sdrv_i2c sdrv_i2c_t;
typedef void (*sdrv_i2c_cb_t)(sdrv_i2c_t *ctrl, void *param,
                              sdrv_i2cdrv_trans_stat_t stat);
struct sdrv_i2c_cfg {
    uint32_t clk;                
    paddr_t base;                
    uint32_t irq;                
    uint32_t id;                 
    uint32_t inited;             
    sdrv_i2cdrv_opmode_t opmode; 
    sdrv_i2cdrv_tsmode_t tsmode; 
    sdrv_i2cdrv_speed_t speed;   
    sdrv_i2cdrv_bus_stat_t bus_stat; 
};
 
struct sdrv_i2cdrv_mctrl {
    uint16_t slave_addr; 
    uint8_t *buf;        
    uint16_t len;        
    int read_flag;       
    bool need_stop;      
    uint16_t cur_len;    
    status_t trans_stat; 
    uint32_t trans_errcode; 
    sdrv_i2c_cb_t cb;    
    void *cb_param;      
};
 
struct sdrv_i2c {
    sdrv_i2c_cfg_t *cfg;       
    sdrv_i2cdrv_mctrl_t mctrl; 
};
 
static inline status_t sdrv_i2c_set_transmode(sdrv_i2c_t *ctrl,
        sdrv_i2cdrv_tsmode_t tsmode)
{
    return SDRV_STATUS_OK;
}
 
static inline status_t sdrv_i2c_set_speedmode(sdrv_i2c_t *ctrl,
        sdrv_i2cdrv_speed_t speed)
{
    return SDRV_STATUS_OK;
}
 
extern status_t sdrv_i2c_init_ctrl(sdrv_i2c_t *ctrl);
 
extern status_t sdrv_i2c_write(sdrv_i2c_t *ctrl, uint16_t addr,
                               uint8_t *wbuf, uint16_t wlen,
                               uint32_t timeout, bool need_stop);
 
extern status_t sdrv_i2c_read(sdrv_i2c_t *ctrl, uint16_t addr,
                              uint8_t *rbuf, uint16_t rlen,
                              uint32_t timeout, bool need_stop);
 
extern status_t sdrv_i2c_write_async(sdrv_i2c_t *ctrl,
                                     uint16_t addr, uint8_t *wbuf, uint16_t wlen,
                                     bool need_stop, sdrv_i2c_cb_t cb, void *cb_param);
 
extern status_t sdrv_i2c_read_async(sdrv_i2c_t *ctrl,
                                    uint16_t addr, uint8_t *rbuf, uint16_t rlen,
                                    bool need_stop, sdrv_i2c_cb_t cb, void *cb_param);
 
extern status_t sdrv_i2c_get_trans_stat(sdrv_i2c_t *ctrl);
 
extern sdrv_i2cdrv_bus_stat_t sdrv_i2c_get_bus_stat(sdrv_i2c_t *ctrl);
 
extern status_t sdrv_i2c_set_bus_stat(sdrv_i2c_t *ctrl,
                                      sdrv_i2cdrv_bus_stat_t bus_stat);
 
extern status_t sdrv_i2c_lock_bus(sdrv_i2c_t *ctrl);
 
extern status_t sdrv_i2c_unlock_bus(sdrv_i2c_t *ctrl);
#endif