1 files changed, 35 insertions, 3 deletions
diff --git a/touch_bus_negotiator.h b/touch_bus_negotiator.h
index a4c157e..a7c971f 100644
--- a/touch_bus_negotiator.h
+++ b/touch_bus_negotiator.h
@@ -6,14 +6,19 @@
 #include <linux/notifier.h>
 #include <linux/mutex.h>
 #include <linux/device.h>
+#include <linux/cdev.h>
+#include <linux/kthread.h>
+
+#define TBN_DEVICE_NAME "tbn"
+#define TBN_CLASS_NAME "tbn"
 
 #define TBN_REQUEST_BUS_TIMEOUT_MS 500
 #define TBN_RELEASE_BUS_TIMEOUT_MS 500
 
 enum tbn_mode {
-	TBN_MODE_DISABLED,
+	TBN_MODE_DISABLED = 0,
 	TBN_MODE_GPIO,
-	TBN_MODE_MAILBOX,
+	TBN_MODE_AOC_CHANNEL,
 };
 
 enum tbn_bus_owner {
@@ -21,22 +26,49 @@ enum tbn_bus_owner {
 	TBN_BUS_OWNER_AOC = 1,
 };
 
+enum TbnOperation : __u32 {
+	TBN_OPERATION_IDLE = 0,
+	TBN_OPERATION_AP_RELEASE_BUS,
+	TBN_OPERATION_AP_REQUEST_BUS,
+};
+
+struct TbnEvent {
+	__u32 id;
+	enum TbnOperation operation;
+} __packed;
+
+struct TbnEventResponse {
+	__u32 id;
+	__s32 err;
+	enum TbnOperation operation;
+	bool lptw_triggered;
+} __packed;
+
 struct tbn_context {
 	struct device *dev;
 	struct completion bus_requested;
 	struct completion bus_released;
 	struct mutex dev_mask_mutex;
-	u8 mode;
+	u32 mode;
 	u32 max_devices;
 	u32 registered_mask;
 	u32 requested_dev_mask;
 	int aoc2ap_gpio;
 	int ap2aoc_gpio;
 	int aoc2ap_irq;
+	struct task_struct *aoc_channel_task;
+
+	/* event management */
+	struct TbnEventResponse event_resp;
+#if IS_ENABLED(CONFIG_TOUCHSCREEN_TBN_AOC_CHANNEL_MODE)
+	struct TbnEvent event;
+	struct mutex event_lock;
+#endif
 };
 
 int register_tbn(u32 *output);
 void unregister_tbn(u32 *output);
+int tbn_request_bus_with_result(u32 dev_mask, bool *lptw_triggered);
 int tbn_request_bus(u32 dev_mask);
 int tbn_release_bus(u32 dev_mask);