76 lines
2 KiB
C
76 lines
2 KiB
C
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/*
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* Definitions for talking to ADB and CUDA. The CUDA is a microcontroller
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* which controls the ADB, system power, RTC, and various other things on
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* later Macintoshes
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*
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* Copyright (C) 1996 Paul Mackerras.
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*/
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/* First byte sent to or received from CUDA */
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#define ADB_PACKET 0
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#define CUDA_PACKET 1
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#define ERROR_PACKET 2
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#define TIMER_PACKET 3
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#define POWER_PACKET 4
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#define MACIIC_PACKET 5
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/* ADB commands (2nd byte) */
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#define ADB_BUSRESET 0
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#define ADB_FLUSH(id) (1 + ((id) << 4))
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#define ADB_WRITEREG(id, reg) (8 + (reg) + ((id) << 4))
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#define ADB_READREG(id, reg) (0xc + (reg) + ((id) << 4))
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/* ADB default device IDs (upper 4 bits of 2nd byte) */
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#define ADB_DONGLE 1 /* "software execution control" devices */
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#define ADB_KEYBOARD 2
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#define ADB_MOUSE 3
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#define ADB_TABLET 4
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#define ADB_MODEM 5
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#define ADB_MISC 7 /* maybe a monitor */
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/* CUDA commands (2nd byte) */
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#define CUDA_WARM_START 0
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#define CUDA_AUTOPOLL 1
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#define CUDA_GET_6805_ADDR 2
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#define CUDA_GET_TIME 3
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#define CUDA_GET_PRAM 7
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#define CUDA_SET_6805_ADDR 8
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#define CUDA_SET_TIME 9
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#define CUDA_POWERDOWN 0xa
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#define CUDA_POWERUP_TIME 0xb
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#define CUDA_SET_PRAM 0xc
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#define CUDA_MS_RESET 0xd
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#define CUDA_SEND_DFAC 0xe
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#define CUDA_RESET_SYSTEM 0x11
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#define CUDA_SET_IPL 0x12
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#define CUDA_SET_AUTO_RATE 0x14
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#define CUDA_GET_AUTO_RATE 0x16
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#define CUDA_SET_DEVICE_LIST 0x19
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#define CUDA_GET_DEVICE_LIST 0x1a
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#define CUDA_GET_SET_IIC 0x22
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#ifdef __KERNEL__
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struct adb_request {
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unsigned char data[16];
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int nbytes;
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unsigned char reply[16];
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int reply_len;
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unsigned char reply_expected;
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unsigned char sent;
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unsigned char got_reply;
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void (*done)(struct adb_request *);
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void *arg;
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struct adb_request *next;
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};
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void via_adb_init(void);
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int adb_request(struct adb_request *req,
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void (*done)(struct adb_request *), int nbytes, ...);
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int adb_send_request(struct adb_request *req);
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void adb_poll(void);
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int adb_register(int default_id,
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void (*handler)(unsigned char *, int, struct pt_regs *));
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#endif /* __KERNEL */
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