Russell King | b652b43 | 2005-06-15 12:38:14 +0100 | [diff] [blame] | 1 | #ifndef _LINUX_I2C_ALGO_PXA_H |
| 2 | #define _LINUX_I2C_ALGO_PXA_H |
| 3 | |
| 4 | struct i2c_eeprom_emu_watcher { |
| 5 | void (*write)(void *, unsigned int addr, unsigned char newval); |
| 6 | }; |
| 7 | |
| 8 | struct i2c_eeprom_emu_watch { |
| 9 | struct list_head node; |
| 10 | unsigned int start; |
| 11 | unsigned int end; |
| 12 | struct i2c_eeprom_emu_watcher *ops; |
| 13 | void *data; |
| 14 | }; |
| 15 | |
| 16 | #define I2C_EEPROM_EMU_SIZE (256) |
| 17 | |
| 18 | struct i2c_eeprom_emu { |
| 19 | unsigned int size; |
| 20 | unsigned int ptr; |
| 21 | unsigned int seen_start; |
| 22 | struct list_head watch; |
| 23 | |
| 24 | unsigned char bytes[I2C_EEPROM_EMU_SIZE]; |
| 25 | }; |
| 26 | |
| 27 | typedef enum i2c_slave_event_e { |
| 28 | I2C_SLAVE_EVENT_START_READ, |
| 29 | I2C_SLAVE_EVENT_START_WRITE, |
| 30 | I2C_SLAVE_EVENT_STOP |
| 31 | } i2c_slave_event_t; |
| 32 | |
| 33 | struct i2c_slave_client { |
| 34 | void *data; |
| 35 | void (*event)(void *ptr, i2c_slave_event_t event); |
| 36 | int (*read) (void *ptr); |
| 37 | void (*write)(void *ptr, unsigned int val); |
| 38 | }; |
| 39 | |
| 40 | extern int i2c_eeprom_emu_addwatcher(struct i2c_eeprom_emu *, void *data, |
| 41 | unsigned int addr, unsigned int size, |
| 42 | struct i2c_eeprom_emu_watcher *); |
| 43 | |
| 44 | extern void i2c_eeprom_emu_delwatcher(struct i2c_eeprom_emu *, void *data, struct i2c_eeprom_emu_watcher *watcher); |
| 45 | |
| 46 | extern struct i2c_eeprom_emu *i2c_pxa_get_eeprom(void); |
| 47 | |
| 48 | #endif /* _LINUX_I2C_ALGO_PXA_H */ |