include/asm-m68k/adb.h

   1 /*
   2  * Definitions for talking to ADB and CUDA.  The CUDA is a microcontroller
   3  * which controls the ADB, system power, RTC, and various other things on
   4  * later Macintoshes
   5  *
   6  * Copyright (C) 1996 Paul Mackerras.
   7  */
   8
   9 /* First byte sent to or received from CUDA */
  10 #define ADB_PACKET      0
  11 #define CUDA_PACKET     1
  12 #define ERROR_PACKET    2
  13 #define TIMER_PACKET    3
  14 #define POWER_PACKET    4
  15 #define MACIIC_PACKET   5
  16
  17 /* ADB commands (2nd byte) */
  18 #define ADB_BUSRESET            0
  19 #define ADB_FLUSH(id)           (1 + ((id) << 4))
  20 #define ADB_WRITEREG(id, reg)   (8 + (reg) + ((id) << 4))
  21 #define ADB_READREG(id, reg)    (0xc + (reg) + ((id) << 4))
  22
  23 /* ADB default device IDs (upper 4 bits of 2nd byte) */
  24 #define ADB_DONGLE      1       /* "software execution control" devices */
  25 #define ADB_KEYBOARD    2
  26 #define ADB_MOUSE       3
  27 #define ADB_TABLET      4
  28 #define ADB_MODEM       5
  29 #define ADB_MISC        7       /* maybe a monitor */
  30
  31 /* CUDA commands (2nd byte) */
  32 #define CUDA_WARM_START         0
  33 #define CUDA_AUTOPOLL           1
  34 #define CUDA_GET_6805_ADDR      2
  35 #define CUDA_GET_TIME           3
  36 #define CUDA_GET_PRAM           7
  37 #define CUDA_SET_6805_ADDR      8
  38 #define CUDA_SET_TIME           9
  39 #define CUDA_POWERDOWN          0xa
  40 #define CUDA_POWERUP_TIME       0xb
  41 #define CUDA_SET_PRAM           0xc
  42 #define CUDA_MS_RESET           0xd
  43 #define CUDA_SEND_DFAC          0xe
  44 #define CUDA_RESET_SYSTEM       0x11
  45 #define CUDA_SET_IPL            0x12
  46 #define CUDA_SET_AUTO_RATE      0x14
  47 #define CUDA_GET_AUTO_RATE      0x16
  48 #define CUDA_SET_DEVICE_LIST    0x19
  49 #define CUDA_GET_DEVICE_LIST    0x1a
  50 #define CUDA_GET_SET_IIC        0x22
  51
  52 #ifdef __KERNEL__
  53
  54 struct adb_request {
  55     unsigned char data[16];
  56     int nbytes;
  57     unsigned char reply[16];
  58     int reply_len;
  59     unsigned char reply_expected;
  60     unsigned char sent;
  61     unsigned char got_reply;
  62     void (*done)(struct adb_request *);
  63     void *arg;
  64     struct adb_request *next;
  65 };
  66
  67 void via_adb_init(void);
  68 int adb_request(struct adb_request *req,
  69                  void (*done)(struct adb_request *), int nbytes, ...);
  70 int adb_send_request(struct adb_request *req);
  71 void adb_poll(void);
  72 int adb_register(int default_id,
  73                  void (*handler)(unsigned char *, int, struct pt_regs *));
  74
  75 #endif  /* __KERNEL */