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49 lines
1.2 KiB
49 lines
1.2 KiB
20 years ago
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#ifndef _LINUX_I2C_ALGO_PXA_H
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#define _LINUX_I2C_ALGO_PXA_H
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struct i2c_eeprom_emu_watcher {
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void (*write)(void *, unsigned int addr, unsigned char newval);
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};
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struct i2c_eeprom_emu_watch {
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struct list_head node;
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unsigned int start;
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unsigned int end;
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struct i2c_eeprom_emu_watcher *ops;
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void *data;
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};
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#define I2C_EEPROM_EMU_SIZE (256)
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struct i2c_eeprom_emu {
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unsigned int size;
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unsigned int ptr;
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unsigned int seen_start;
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struct list_head watch;
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unsigned char bytes[I2C_EEPROM_EMU_SIZE];
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};
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typedef enum i2c_slave_event_e {
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I2C_SLAVE_EVENT_START_READ,
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I2C_SLAVE_EVENT_START_WRITE,
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I2C_SLAVE_EVENT_STOP
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} i2c_slave_event_t;
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struct i2c_slave_client {
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void *data;
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void (*event)(void *ptr, i2c_slave_event_t event);
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int (*read) (void *ptr);
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void (*write)(void *ptr, unsigned int val);
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};
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extern int i2c_eeprom_emu_addwatcher(struct i2c_eeprom_emu *, void *data,
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unsigned int addr, unsigned int size,
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struct i2c_eeprom_emu_watcher *);
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extern void i2c_eeprom_emu_delwatcher(struct i2c_eeprom_emu *, void *data, struct i2c_eeprom_emu_watcher *watcher);
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extern struct i2c_eeprom_emu *i2c_pxa_get_eeprom(void);
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#endif /* _LINUX_I2C_ALGO_PXA_H */
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