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1#ifndef _LINUX_I2C_ALGO_PXA_H
2#define _LINUX_I2C_ALGO_PXA_H
3
4struct i2c_eeprom_emu_watcher {
5 void (*write)(void *, unsigned int addr, unsigned char newval);
6};
7
8struct 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
18struct 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
27typedef 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
33struct 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
40extern 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
44extern void i2c_eeprom_emu_delwatcher(struct i2c_eeprom_emu *, void *data, struct i2c_eeprom_emu_watcher *watcher);
45
46extern struct i2c_eeprom_emu *i2c_pxa_get_eeprom(void);
47
48#endif /* _LINUX_I2C_ALGO_PXA_H */