mirror of
https://github.com/halleysfifthinc/AVCLAN-Mockingboard.git
synced 2026-08-07 01:13:18 +00:00
Allen Hill
154 lines
4.0 KiB
C
154 lines
4.0 KiB
C
/*
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AVCLAN-Mockingboard
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Copyright (C) 2015 Allen Hill <allenofthehills@gmail.com>
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Portions of the following source code are based on code that is
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copyright (C) 2006 Marcin Slonicki <marcin@softservice.com.pl>
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copyright (C) 2007 Louis Frigon
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef __AVCLANDRV_H
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#define __AVCLANDRV_H
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// AVC LAN bus on AC2 (PA6/7)
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// PA6 AINP0 +
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// PA7 AINN1 -
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#define BUS_IS_IDLE (bit_is_clear(AC2_STATUS, AC_STATE_bp))
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#define sbi(port, bit) (port) |= (1 << (bit)) // Set bit (i.e. to 1)
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#define cbi(port, bit) (port) &= ~(1 << (bit)) // Clear bit (i.e. set bit to 0)
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#define STOPEvent \
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cbi(RTC.PITINTCTRL, RTC_PI_bp); \
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cbi(USART0.CTRLA, USART_RXCIE_bp);
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#define STARTEvent \
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sbi(RTC.PITINTCTRL, RTC_PI_bp); \
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sbi(USART0.CTRLA, USART_RXCIE_bp);
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#define CHECK_AVC_LINE \
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if (!BUS_IS_IDLE) \
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AVCLAN_readframe();
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#define MAXMSGLEN 32
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extern uint16_t CD_ID; // CD Changer ID
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extern uint16_t HU_ID; // Head-unit ID
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extern uint8_t printAllFrames;
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extern uint8_t verbose;
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extern uint8_t printBinary;
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typedef enum {
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cm_Null = 0,
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cm_Status1 = 1,
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cm_Status2 = 2,
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cm_Status3 = 3,
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cm_Status4 = 4,
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cm_PlayReq1 = 5,
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cm_PlayReq2 = 6,
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cm_PlayReq3 = 7,
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cm_StopReq = 8,
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cm_StopReq2 = 9,
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cm_Register = 100,
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cm_Init = 101,
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cm_Check = 102,
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cm_PlayIt = 103,
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cm_Beep = 110,
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cm_NextTrack = 120,
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cm_PrevTrack = 121,
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cm_NextDisc = 122,
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cm_PrevDisc = 123,
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cm_ScanModeOn = 130,
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cm_ScanModeOff = 131,
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cm_CDStatus,
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} commands;
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typedef enum {
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cd_OPEN = 0x01,
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cd_ERR1 = 0x02,
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cd_SEEKING = 0x08,
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cd_PLAYBACK = 0x10,
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cd_SEEKING_TRACK = 0x20,
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cd_LOADING = 0x80,
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} cd_state;
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typedef struct AVCLAN_CD_Status {
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_Bool cd1 : 1;
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_Bool cd2 : 1;
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_Bool cd3 : 1;
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_Bool cd4 : 1;
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_Bool cd5 : 1;
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_Bool cd6 : 1;
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int : 2;
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cd_state state;
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uint8_t disc;
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uint8_t track;
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uint8_t mins;
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uint8_t secs;
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int : 1;
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_Bool disk_random : 1;
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_Bool random : 1;
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_Bool disk_repeat : 1;
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_Bool repeat : 1;
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_Bool disk_scan : 1;
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_Bool scan : 1;
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int : 2;
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uint8_t flags2;
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} AVCLAN_CD_Status_t;
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typedef enum { stStop = 0, stPlay = 1 } cd_modes;
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typedef enum MSG_TYPE { BROADCAST = 0, UNICAST = 1 } MSG_TYPE_t;
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typedef struct AVCLAN_KnownMessage_struct {
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MSG_TYPE_t broadcast;
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uint8_t length;
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uint8_t data[11];
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} AVCLAN_KnownMessage_t;
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typedef struct AVCLAN_frame_struct {
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MSG_TYPE_t broadcast; // 0 for broadcast messages
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uint16_t controller_addr; // formerly "master"
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uint16_t peripheral_addr; // formerly "slave"
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uint8_t control;
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uint8_t length;
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uint8_t *data;
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} AVCLAN_frame_t;
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void AVCLAN_init();
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void AVCLAN_muteDevice(uint8_t mute);
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uint8_t AVCLAN_readframe();
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uint8_t AVCLAN_sendframe(const AVCLAN_frame_t *frame);
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uint8_t AVCLAN_responseNeeded();
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void AVCLAN_printframe(const AVCLAN_frame_t *frame, uint8_t binary);
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AVCLAN_frame_t *AVCLAN_parseframe(const uint8_t *bytes, uint8_t len);
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void AVCLan_Send_Status();
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void AVCLan_Register();
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uint8_t AVCLan_SendAnswer();
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#ifdef SOFTWARE_DEBUG
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void AVCLan_Measure();
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#endif
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#ifdef HARDWARE_DEBUG
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void SetHighLow();
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#endif
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#endif // __AVCLANDRV_H
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