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-rw-r--r--include/linux/adb.h104
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 */