i2c: add acquire_bus/release_bus hooks

Change-Id: I9f55bb824f264175ae5830a2853a1897e3a00139 Reviewed-on: https://review.haiku-os.org/c/haiku/+/2470 Reviewed-by: Jérôme Duval <[email protected]>
2020-04-12 16:55:52 +00:00
parent 48da5bf8ac
commit 01990a00e8
7 changed files with 118 additions and 7 deletions
@@ -53,7 +53,8 @@ typedef struct {
 	status_t (*exec_command)(i2c_device cookie, i2c_op op,
 		const void *cmdBuffer, size_t cmdLength, void* dataBuffer,
 		size_t dataLength);
-
+	status_t (*acquire_bus)(i2c_device cookie);
+	void (*release_bus)(i2c_device cookie);
 } i2c_device_interface;


@@ -76,6 +77,8 @@ typedef struct {
 	status_t (*exec_command)(i2c_bus cookie, i2c_op op, i2c_addr slaveAddress,
 		const void *cmdBuffer, size_t cmdLength, void* dataBuffer,
 		size_t dataLength);
+	status_t (*acquire_bus)(i2c_bus cookie);
+	void (*release_bus)(i2c_bus cookie);
 } i2c_bus_interface;


@@ -119,12 +122,14 @@ typedef struct {

 	status_t (*scan_bus)(i2c_bus_cookie cookie);

+	status_t (*acquire_bus)(i2c_bus_cookie cookie);
+	void (*release_bus)(i2c_bus_cookie cookie);
+
 	status_t (*install_interrupt_handler)(i2c_bus_cookie cookie,
 		i2c_intr_cookie intrCookie, interrupt_handler handler, void* data);

 	status_t (*uninstall_interrupt_handler)(i2c_bus_cookie cookie,
 		i2c_intr_cookie intrCookie);
-
 } i2c_sim_interface;