00001 #ifndef QEMU_I2C_H
00002 #define QEMU_I2C_H
00003
00004
00005
00006
00007
00008
00009 enum i2c_event {
00010 I2C_START_RECV,
00011 I2C_START_SEND,
00012 I2C_FINISH,
00013 I2C_NACK
00014 };
00015
00016
00017 typedef int (*i2c_send_cb)(i2c_slave *s, uint8_t data);
00018
00019 typedef int (*i2c_recv_cb)(i2c_slave *s);
00020
00021 typedef void (*i2c_event_cb)(i2c_slave *s, enum i2c_event event);
00022
00023 struct i2c_slave
00024 {
00025
00026 i2c_event_cb event;
00027 i2c_recv_cb recv;
00028 i2c_send_cb send;
00029
00030
00031 int address;
00032 void *next;
00033 i2c_bus *bus;
00034 };
00035
00036 i2c_bus *i2c_init_bus(void);
00037 i2c_slave *i2c_slave_init(i2c_bus *bus, int address, int size);
00038 void i2c_set_slave_address(i2c_slave *dev, int address);
00039 int i2c_bus_busy(i2c_bus *bus);
00040 int i2c_start_transfer(i2c_bus *bus, int address, int recv);
00041 void i2c_end_transfer(i2c_bus *bus);
00042 void i2c_nack(i2c_bus *bus);
00043 int i2c_send(i2c_bus *bus, uint8_t data);
00044 int i2c_recv(i2c_bus *bus);
00045 void i2c_slave_save(QEMUFile *f, i2c_slave *dev);
00046 void i2c_slave_load(QEMUFile *f, i2c_slave *dev);
00047
00048
00049 struct max111x_s;
00050 uint32_t max111x_read(void *opaque);
00051 void max111x_write(void *opaque, uint32_t value);
00052 struct max111x_s *max1110_init(qemu_irq cb);
00053 struct max111x_s *max1111_init(qemu_irq cb);
00054 void max111x_set_input(struct max111x_s *s, int line, uint8_t value);
00055
00056
00057 i2c_slave *max7310_init(i2c_bus *bus);
00058 void max7310_reset(i2c_slave *i2c);
00059 qemu_irq *max7310_gpio_in_get(i2c_slave *i2c);
00060 void max7310_gpio_out_set(i2c_slave *i2c, int line, qemu_irq handler);
00061
00062
00063 i2c_slave *wm8750_init(i2c_bus *bus, AudioState *audio);
00064 void wm8750_reset(i2c_slave *i2c);
00065 void wm8750_data_req_set(i2c_slave *i2c,
00066 void (*data_req)(void *, int, int), void *opaque);
00067 void wm8750_dac_dat(void *opaque, uint32_t sample);
00068 uint32_t wm8750_adc_dat(void *opaque);
00069 void *wm8750_dac_buffer(void *opaque, int samples);
00070 void wm8750_dac_commit(void *opaque);
00071 void wm8750_set_bclk_in(void *opaque, int new_hz);
00072
00073
00074 void ssd0303_init(i2c_bus *bus, int address);
00075
00076
00077 i2c_slave *twl92230_init(i2c_bus *bus, qemu_irq irq);
00078 qemu_irq *twl92230_gpio_in_get(i2c_slave *i2c);
00079 void twl92230_gpio_out_set(i2c_slave *i2c, int line, qemu_irq handler);
00080
00081
00082 struct i2c_slave *tmp105_init(i2c_bus *bus, qemu_irq alarm);
00083 void tmp105_reset(i2c_slave *i2c);
00084 void tmp105_set(i2c_slave *i2c, int temp);
00085
00086
00087 struct i2c_slave *lm8323_init(i2c_bus *bus, qemu_irq nirq);
00088 void lm832x_key_event(struct i2c_slave *i2c, int key, int state);
00089
00090 #endif