quack/main/adb.h

89 lines
2.4 KiB
C

/*
* adb.h
* quack
*
* Created by Michel DEPEIGE on 7/01/2021.
* Copyright (c) 2020 Michel DEPEIGE.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the Apache License, Version 2.0 (the "License");
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef ADB_H
#define ADB_H
/* prototypes */
void adb_init(void);
bool adb_is_host(void);
void adb_task_host(void *pvParameters);
void adb_task_idle(void *pvParameters);
void adb_tx_cmd(unsigned char cmd);
void adb_tx_data(uint16_t data);
void adb_tx_listen(unsigned char cmd, uint16_t data);
void adb_tx_reset(void);
/* defines */
#define RMT_RX_CHANNEL RMT_CHANNEL_0
#define tskADB_PRIORITY 4
/* ADB timers */
#define ADB_RESET 3000
#define ADB_0_LOW 65
#define ADB_0_HIGH 35
#define ADB_1_LOW 35
#define ADB_1_HIGH 65
#define ADB_S_LOW 70
#define ADB_S_HIGH 30
/* Classic Apple Mouse Protocol bitmasks */
#define ADB_CMP_B1 (1<<15)
#define ADB_CMP_B2 (1<<7)
#define ADB_CMP_MX (127<<0)
#define ADB_CMP_MY (127<<8)
/* ADB commands values from 00591b.pdf page 16-17 */
#define ADB_TALK 0xC
#define ADB_LISTEN 0x8
#define ADB_FLUSH 0x1
#define ADB_REG0 0x0
#define ADB_REG1 0x1
#define ADB_REG2 0x2
#define ADB_REG3 0x3
/* Device addresses */
#define ADB_MOUSE (3<<4) // main device
#define ADB_MACAJ (5<<4) // lost MacAlly Joystick
#define ADB_KML1 (8<<4) // disabled Kensington device
#define ADB_TMP (9<<4) // temporary device
/* Various stuff */
#define ADB_B_UP 0
#define ADB_B_DOWN 1
#define ADB_H_ALL 0xff // Handlers bitmask
#define ADB_H_ERR 0x00 // Handler 0 (Self init error)
#define ADB_H_C100 0x01 // Handler 1 (Classic @ 100cpi)
#define ADB_H_C200 0x02 // Handler 2 (Classic @ 200cpi)
#define ADB_H_MACJ 0x03 // Handler for MacAlly Joystick
#define ADB_H_MTRC 0x2f // Handler for MacTRAC 2.0
#define ADB_H_KSGT 0x32 // Handler for Kensington devices
#define ADB_H_MOVE 0xfe // Move to another address
/* Host states */
#define ADB_S_PROBE 0x00
#define ADM_S_POLL 0x01
#define ADB_S_KEEP 0x08
#endif