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b652b438 RK |
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 */ |