mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
b652b438fc
Add support for the I2C PXA driver. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
#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 */
|