6 /* The QEMU I2C implementation only supports simple transfers that complete
7 immediately. It does not support slave devices that need to be able to
8 defer their response (eg. CPU slave interfaces where the data is supplied
9 by the device driver in response to an interrupt). */
15 I2C_NACK
/* Masker NACKed a receive byte. */
18 /* Master to slave. */
19 typedef int (*i2c_send_cb
)(i2c_slave
*s
, uint8_t data
);
20 /* Slave to master. */
21 typedef int (*i2c_recv_cb
)(i2c_slave
*s
);
22 /* Notify the slave of a bus state change. */
23 typedef void (*i2c_event_cb
)(i2c_slave
*s
, enum i2c_event event
);
25 typedef void (*i2c_slave_initfn
)(i2c_slave
*dev
);
28 /* Callbacks provided by the device. */
29 i2c_slave_initfn init
;
39 /* FIXME: These 3 should go away once all devices have been converted. */
44 /* Remaining fields for internal use by the I2C code. */
50 i2c_bus
*i2c_init_bus(void);
51 i2c_slave
*i2c_slave_init(i2c_bus
*bus
, int address
, int size
);
52 void i2c_set_slave_address(i2c_slave
*dev
, int address
);
53 int i2c_bus_busy(i2c_bus
*bus
);
54 int i2c_start_transfer(i2c_bus
*bus
, int address
, int recv
);
55 void i2c_end_transfer(i2c_bus
*bus
);
56 void i2c_nack(i2c_bus
*bus
);
57 int i2c_send(i2c_bus
*bus
, uint8_t data
);
58 int i2c_recv(i2c_bus
*bus
);
59 void i2c_slave_save(QEMUFile
*f
, i2c_slave
*dev
);
60 void i2c_slave_load(QEMUFile
*f
, i2c_slave
*dev
);
62 #define I2C_SLAVE_FROM_QDEV(dev) DO_UPCAST(i2c_slave, qdev, dev)
63 #define FROM_I2C_SLAVE(type, dev) DO_UPCAST(type, i2c, dev)
65 void i2c_register_slave(const char *name
, int size
, I2CSlaveInfo
*type
);
67 DeviceState
*i2c_create_slave(i2c_bus
*bus
, const char *name
, int addr
);
70 typedef struct MAX111xState MAX111xState
;
71 uint32_t max111x_read(void *opaque
);
72 void max111x_write(void *opaque
, uint32_t value
);
73 MAX111xState
*max1110_init(qemu_irq cb
);
74 MAX111xState
*max1111_init(qemu_irq cb
);
75 void max111x_set_input(MAX111xState
*s
, int line
, uint8_t value
);
78 void max7310_reset(i2c_slave
*i2c
);
79 qemu_irq
*max7310_gpio_in_get(i2c_slave
*i2c
);
80 void max7310_gpio_out_set(i2c_slave
*i2c
, int line
, qemu_irq handler
);
83 i2c_slave
*wm8750_init(i2c_bus
*bus
);
84 void wm8750_reset(i2c_slave
*i2c
);
85 void wm8750_data_req_set(i2c_slave
*i2c
,
86 void (*data_req
)(void *, int, int), void *opaque
);
87 void wm8750_dac_dat(void *opaque
, uint32_t sample
);
88 uint32_t wm8750_adc_dat(void *opaque
);
89 void *wm8750_dac_buffer(void *opaque
, int samples
);
90 void wm8750_dac_commit(void *opaque
);
91 void wm8750_set_bclk_in(void *opaque
, int new_hz
);
94 i2c_slave
*twl92230_init(i2c_bus
*bus
, qemu_irq irq
);
95 qemu_irq
*twl92230_gpio_in_get(i2c_slave
*i2c
);
96 void twl92230_gpio_out_set(i2c_slave
*i2c
, int line
, qemu_irq handler
);
99 struct i2c_slave
*tmp105_init(i2c_bus
*bus
, qemu_irq alarm
);
100 void tmp105_reset(i2c_slave
*i2c
);
101 void tmp105_set(i2c_slave
*i2c
, int temp
);
104 struct i2c_slave
*lm8323_init(i2c_bus
*bus
, qemu_irq nirq
);
105 void lm832x_key_event(struct i2c_slave
*i2c
, int key
, int state
);