1 files changed, 104 insertions, 0 deletions
diff --git a/include/linux/adb.h b/include/linux/adb.h
new file mode 100644
index 000000000000..e9fdc63483c7
--- /dev/null
+++ b/include/linux/adb.h
@@ -0,0 +1,104 @@
+/*
+ * Definitions for ADB (Apple Desktop Bus) support.
+ */
+#ifndef __ADB_H
+#define __ADB_H
+
+/* ADB commands */
+#define ADB_BUSRESET		0
+#define ADB_FLUSH(id)		(0x01 | ((id) << 4))
+#define ADB_WRITEREG(id, reg)	(0x08 | (reg) | ((id) << 4))
+#define ADB_READREG(id, reg)	(0x0C | (reg) | ((id) << 4))
+
+/* ADB default device IDs (upper 4 bits of ADB command byte) */
+#define ADB_DONGLE	1	/* "software execution control" devices */
+#define ADB_KEYBOARD	2
+#define ADB_MOUSE	3
+#define ADB_TABLET	4
+#define ADB_MODEM	5
+#define ADB_MISC	7	/* maybe a monitor */
+
+#define ADB_RET_OK	0
+#define ADB_RET_TIMEOUT	3
+
+/* The kind of ADB request. The controller may emulate some
+   or all of those CUDA/PMU packet kinds */
+#define ADB_PACKET	0
+#define CUDA_PACKET	1
+#define ERROR_PACKET	2
+#define TIMER_PACKET	3
+#define POWER_PACKET	4
+#define MACIIC_PACKET	5
+#define PMU_PACKET	6
+#define ADB_QUERY	7
+
+/* ADB queries */
+
+/* ADB_QUERY_GETDEVINFO
+ * Query ADB slot for device presence
+ * data[2] = id, rep[0] = orig addr, rep[1] = handler_id
+ */
+#define ADB_QUERY_GETDEVINFO	1
+
+#ifdef __KERNEL__
+
+struct adb_request {
+	unsigned char data[32];
+	int nbytes;
+	unsigned char reply[32];
+	int reply_len;
+	unsigned char reply_expected;
+	unsigned char sent;
+	unsigned char complete;
+	void (*done)(struct adb_request *);
+	void *arg;
+	struct adb_request *next;
+};
+
+struct adb_ids {
+	int nids;
+	unsigned char id[16];
+};
+
+/* Structure which encapsulates a low-level ADB driver */
+
+struct adb_driver {
+	char name[16];
+	int (*probe)(void);
+	int (*init)(void);
+	int (*send_request)(struct adb_request *req, int sync);
+	int (*autopoll)(int devs);
+	void (*poll)(void);
+	int (*reset_bus)(void);
+};
+
+/* Values for adb_request flags */
+#define ADBREQ_REPLY	1	/* expect reply */
+#define ADBREQ_SYNC	2	/* poll until done */
+#define ADBREQ_NOSEND	4	/* build the request, but don't send it */
+
+/* Messages sent thru the client_list notifier. You should NOT stop
+   the operation, at least not with this version */
+enum adb_message {
+    ADB_MSG_POWERDOWN,	/* Currently called before sleep only */
+    ADB_MSG_PRE_RESET,	/* Called before resetting the bus */
+    ADB_MSG_POST_RESET	/* Called after resetting the bus (re-do init & register) */
+};
+extern struct adb_driver *adb_controller;
+extern struct notifier_block *adb_client_list;
+
+int adb_request(struct adb_request *req, void (*done)(struct adb_request *),
+		int flags, int nbytes, ...);
+int adb_register(int default_id,int handler_id,struct adb_ids *ids,
+		 void (*handler)(unsigned char *, int, struct pt_regs *, int));
+int adb_unregister(int index);
+void adb_poll(void);
+void adb_input(unsigned char *, int, struct pt_regs *, int);
+int adb_reset_bus(void);
+
+int adb_try_handler_change(int address, int new_id);
+int adb_get_infos(int address, int *original_address, int *handler_id);
+
+#endif /* __KERNEL__ */
+
+#endif /* __ADB_H */