change debug_out format of addr to JZ_FMT_plx
[qemu/qemu-JZ.git] / hw / i2c.h
blob68553758c5803a7006a304852325200cc85d2ce0
1 #ifndef QEMU_I2C_H
2 #define QEMU_I2C_H
4 /* The QEMU I2C implementation only supports simple transfers that complete
5 immediately. It does not support slave devices that need to be able to
6 defer their response (eg. CPU slave interfaces where the data is supplied
7 by the device driver in response to an interrupt). */
9 enum i2c_event {
10 I2C_START_RECV,
11 I2C_START_SEND,
12 I2C_FINISH,
13 I2C_NACK /* Masker NACKed a receive byte. */
16 /* Master to slave. */
17 typedef int (*i2c_send_cb)(i2c_slave *s, uint8_t data);
18 /* Slave to master. */
19 typedef int (*i2c_recv_cb)(i2c_slave *s);
20 /* Notify the slave of a bus state change. */
21 typedef void (*i2c_event_cb)(i2c_slave *s, enum i2c_event event);
23 struct i2c_slave
25 /* Callbacks to be set by the device. */
26 i2c_event_cb event;
27 i2c_recv_cb recv;
28 i2c_send_cb send;
30 /* Remaining fields for internal use by the I2C code. */
31 int address;
32 void *next;
33 i2c_bus *bus;
36 i2c_bus *i2c_init_bus(void);
37 i2c_slave *i2c_slave_init(i2c_bus *bus, int address, int size);
38 void i2c_set_slave_address(i2c_slave *dev, int address);
39 int i2c_bus_busy(i2c_bus *bus);
40 int i2c_start_transfer(i2c_bus *bus, int address, int recv);
41 void i2c_end_transfer(i2c_bus *bus);
42 void i2c_nack(i2c_bus *bus);
43 int i2c_send(i2c_bus *bus, uint8_t data);
44 int i2c_recv(i2c_bus *bus);
45 void i2c_slave_save(QEMUFile *f, i2c_slave *dev);
46 void i2c_slave_load(QEMUFile *f, i2c_slave *dev);
48 /* max111x.c */
49 struct max111x_s;
50 uint32_t max111x_read(void *opaque);
51 void max111x_write(void *opaque, uint32_t value);
52 struct max111x_s *max1110_init(qemu_irq cb);
53 struct max111x_s *max1111_init(qemu_irq cb);
54 void max111x_set_input(struct max111x_s *s, int line, uint8_t value);
56 /* max7310.c */
57 i2c_slave *max7310_init(i2c_bus *bus);
58 void max7310_reset(i2c_slave *i2c);
59 qemu_irq *max7310_gpio_in_get(i2c_slave *i2c);
60 void max7310_gpio_out_set(i2c_slave *i2c, int line, qemu_irq handler);
62 /* wm8750.c */
63 i2c_slave *wm8750_init(i2c_bus *bus, AudioState *audio);
64 void wm8750_reset(i2c_slave *i2c);
65 void wm8750_data_req_set(i2c_slave *i2c,
66 void (*data_req)(void *, int, int), void *opaque);
67 void wm8750_dac_dat(void *opaque, uint32_t sample);
68 uint32_t wm8750_adc_dat(void *opaque);
69 void *wm8750_dac_buffer(void *opaque, int samples);
70 void wm8750_dac_commit(void *opaque);
71 void wm8750_set_bclk_in(void *opaque, int new_hz);
73 /* ssd0303.c */
74 void ssd0303_init(DisplayState *ds, i2c_bus *bus, int address);
76 /* twl92230.c */
77 i2c_slave *twl92230_init(i2c_bus *bus, qemu_irq irq);
78 qemu_irq *twl92230_gpio_in_get(i2c_slave *i2c);
79 void twl92230_gpio_out_set(i2c_slave *i2c, int line, qemu_irq handler);
81 /* tmp105.c */
82 struct i2c_slave *tmp105_init(i2c_bus *bus, qemu_irq alarm);
83 void tmp105_reset(i2c_slave *i2c);
84 void tmp105_set(i2c_slave *i2c, int temp);
86 /* lm832x.c */
87 struct i2c_slave *lm8323_init(i2c_bus *bus, qemu_irq nirq);
88 void lm832x_key_event(struct i2c_slave *i2c, int key, int state);
90 #endif