i2c-pxa.h
上传用户:szlgq88
上传日期:2009-04-28
资源大小:48287k
文件大小:1k
- #ifndef _LINUX_I2C_ALGO_PXA_H
- #define _LINUX_I2C_ALGO_PXA_H
- struct i2c_eeprom_emu_watcher {
- void (*write)(void *, unsigned int addr, unsigned char newval);
- };
- struct i2c_eeprom_emu_watch {
- struct list_head node;
- unsigned int start;
- unsigned int end;
- struct i2c_eeprom_emu_watcher *ops;
- void *data;
- };
- #define I2C_EEPROM_EMU_SIZE (256)
- struct i2c_eeprom_emu {
- unsigned int size;
- unsigned int ptr;
- unsigned int seen_start;
- struct list_head watch;
- unsigned char bytes[I2C_EEPROM_EMU_SIZE];
- };
- typedef enum i2c_slave_event_e {
- I2C_SLAVE_EVENT_START_READ,
- I2C_SLAVE_EVENT_START_WRITE,
- I2C_SLAVE_EVENT_STOP
- } i2c_slave_event_t;
- struct i2c_slave_client {
- void *data;
- void (*event)(void *ptr, i2c_slave_event_t event);
- int (*read) (void *ptr);
- void (*write)(void *ptr, unsigned int val);
- };
- extern int i2c_eeprom_emu_addwatcher(struct i2c_eeprom_emu *, void *data,
- unsigned int addr, unsigned int size,
- struct i2c_eeprom_emu_watcher *);
- extern void i2c_eeprom_emu_delwatcher(struct i2c_eeprom_emu *, void *data, struct i2c_eeprom_emu_watcher *watcher);
- extern struct i2c_eeprom_emu *i2c_pxa_get_eeprom(void);
- #endif /* _LINUX_I2C_ALGO_PXA_H */