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 */