intel_extreme: change i2c_send_receive to a hook

common: i2c/ddc uses a 7-bit address for EDID. Change-Id: Ic1bba2a23174c671bd7374104596c22433bd343a Reviewed-on: https://review.haiku-os.org/c/haiku/+/5171 Tested-by: Commit checker robot <[email protected]> Reviewed-by: Adrien Destugues <[email protected]>
2022-04-05 10:53:04 +00:00
parent 5e6e52cfd4
commit 5f90c3726b
5 changed files with 61 additions and 18 deletions
@@ -35,17 +35,26 @@ typedef struct i2c_timing {
 } i2c_timing;


+struct i2c_bus;
+
 // set signals on bus
 typedef status_t (*i2c_set_signals)(void *cookie, int clock, int data);
 // read signals from bus
 typedef status_t (*i2c_get_signals)(void *cookie, int *clock, int *data);
+// send/receive from bus
+typedef status_t (*i2c_send_receive)(const struct i2c_bus *bus, uint32 slave_address,
+		const uint8 *writeBuffer, size_t writeLength, uint8 *readBuffer,
+		size_t readLength);

 // i2c bus definition
 typedef struct i2c_bus {
 	void *cookie;					// user-defined cookie
+	// low-level
 	i2c_timing timing;
 	i2c_set_signals set_signals;	// callback to set signals
 	i2c_get_signals get_signals;	// callback to detect signals
+	// high-level
+	i2c_send_receive send_receive;
 } i2c_bus;


@@ -54,7 +63,7 @@ extern "C" {
 #endif

 // send and receive data via i2c bus
-status_t i2c_send_receive(const i2c_bus *bus, int slave_address,
+status_t i2c_send_receive_callback(const i2c_bus *bus, uint32 slave_address,
 	const uint8 *writeBuffer, size_t writeLength, uint8 *readBuffer,
 	size_t readLength);