symbian-qemu-0.9.1-12/qemu-symbian-svp/hw/i2c.h
changeset 1 2fb8b9db1c86
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/qemu-symbian-svp/hw/i2c.h	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,90 @@
+#ifndef QEMU_I2C_H
+#define QEMU_I2C_H
+
+/* The QEMU I2C implementation only supports simple transfers that complete
+   immediately.  It does not support slave devices that need to be able to
+   defer their response (eg. CPU slave interfaces where the data is supplied
+   by the device driver in response to an interrupt).  */
+
+enum i2c_event {
+    I2C_START_RECV,
+    I2C_START_SEND,
+    I2C_FINISH,
+    I2C_NACK /* Masker NACKed a receive byte.  */
+};
+
+/* Master to slave.  */
+typedef int (*i2c_send_cb)(i2c_slave *s, uint8_t data);
+/* Slave to master.  */
+typedef int (*i2c_recv_cb)(i2c_slave *s);
+/* Notify the slave of a bus state change.  */
+typedef void (*i2c_event_cb)(i2c_slave *s, enum i2c_event event);
+
+struct i2c_slave
+{
+    /* Callbacks to be set by the device.  */
+    i2c_event_cb event;
+    i2c_recv_cb recv;
+    i2c_send_cb send;
+
+    /* Remaining fields for internal use by the I2C code.  */
+    int address;
+    void *next;
+    i2c_bus *bus;
+};
+
+i2c_bus *i2c_init_bus(void);
+i2c_slave *i2c_slave_init(i2c_bus *bus, int address, int size);
+void i2c_set_slave_address(i2c_slave *dev, int address);
+int i2c_bus_busy(i2c_bus *bus);
+int i2c_start_transfer(i2c_bus *bus, int address, int recv);
+void i2c_end_transfer(i2c_bus *bus);
+void i2c_nack(i2c_bus *bus);
+int i2c_send(i2c_bus *bus, uint8_t data);
+int i2c_recv(i2c_bus *bus);
+void i2c_slave_save(QEMUFile *f, i2c_slave *dev);
+void i2c_slave_load(QEMUFile *f, i2c_slave *dev);
+
+/* max111x.c */
+struct max111x_s;
+uint32_t max111x_read(void *opaque);
+void max111x_write(void *opaque, uint32_t value);
+struct max111x_s *max1110_init(qemu_irq cb);
+struct max111x_s *max1111_init(qemu_irq cb);
+void max111x_set_input(struct max111x_s *s, int line, uint8_t value);
+
+/* max7310.c */
+i2c_slave *max7310_init(i2c_bus *bus);
+void max7310_reset(i2c_slave *i2c);
+qemu_irq *max7310_gpio_in_get(i2c_slave *i2c);
+void max7310_gpio_out_set(i2c_slave *i2c, int line, qemu_irq handler);
+
+/* wm8750.c */
+i2c_slave *wm8750_init(i2c_bus *bus, AudioState *audio);
+void wm8750_reset(i2c_slave *i2c);
+void wm8750_data_req_set(i2c_slave *i2c,
+                void (*data_req)(void *, int, int), void *opaque);
+void wm8750_dac_dat(void *opaque, uint32_t sample);
+uint32_t wm8750_adc_dat(void *opaque);
+void *wm8750_dac_buffer(void *opaque, int samples);
+void wm8750_dac_commit(void *opaque);
+void wm8750_set_bclk_in(void *opaque, int new_hz);
+
+/* ssd0303.c */
+void ssd0303_init(DisplayState *ds, i2c_bus *bus, int address);
+
+/* twl92230.c */
+i2c_slave *twl92230_init(i2c_bus *bus, qemu_irq irq);
+qemu_irq *twl92230_gpio_in_get(i2c_slave *i2c);
+void twl92230_gpio_out_set(i2c_slave *i2c, int line, qemu_irq handler);
+
+/* tmp105.c */
+struct i2c_slave *tmp105_init(i2c_bus *bus, qemu_irq alarm);
+void tmp105_reset(i2c_slave *i2c);
+void tmp105_set(i2c_slave *i2c, int temp);
+
+/* lm832x.c */
+struct i2c_slave *lm8323_init(i2c_bus *bus, qemu_irq nirq);
+void lm832x_key_event(struct i2c_slave *i2c, int key, int state);
+
+#endif