mirror of
https://github.com/LIV2/lide.device.git
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ATAPI: Translate PLAY AUDIO TRACK INDEX
This command is not supported by ATAPI devices, so translate it
This commit is contained in:
Matt Harlum
parent
43bb237676
commit
6b5dc2fb5e
166
atapi.c
166
atapi.c
@ -993,6 +993,9 @@ bool atapi_update_presence(struct IDEUnit *unit, bool present) {
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*
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* If an access to the medium was successful then we know that it is present.
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* The diskchange task can then skip the next "Test Unit Ready" so it won't interrupt a transfer
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*
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* @param unit Pointer to an IDEUnit struct
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* @param cmd SCSI Command
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*/
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void atapi_do_defer_tur(struct IDEUnit *unit, UBYTE cmd) {
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@ -1002,4 +1005,167 @@ void atapi_do_defer_tur(struct IDEUnit *unit, UBYTE cmd) {
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unit->deferTUR = true;
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}
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}
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/**
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* atapi_read_toc
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*
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* Reads the CD TOC into the supplied buffer
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*
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* @param unit Pointer to an IDEUnit struct
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* @param buf Pointer to the buffer
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* @param bufSize Size of buffer
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* @returns non-zero on error
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*/
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BYTE atapi_read_toc(struct IDEUnit *unit, BYTE *buf, ULONG bufSize) {
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BYTE ret = 0;
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if (buf == NULL || bufSize == 0) {
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return IOERR_BADADDRESS;
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}
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struct SCSICmd *cmd = MakeSCSICmd(SZ_CDB_10);
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cmd->scsi_Data = (UWORD *)buf;
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cmd->scsi_Length = bufSize;
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cmd->scsi_Flags = SCSIF_READ;
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cmd->scsi_Command[0] = SCSI_CMD_READ_TOC;
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cmd->scsi_Command[1] = 0x02; // MSF Flag
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cmd->scsi_Command[7] = bufSize >> 8;
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cmd->scsi_Command[8] = bufSize & 0xFF;
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ret = atapi_packet(cmd,unit) != 0;
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DeleteSCSICmd(cmd);
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return ret;
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}
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/**
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* atapi_get_track_msf
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*
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* Find the M/S/F of a Track
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*
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* @param toc pointer to a SCSI_CD_TOC struct
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* @param trackNum track number to find
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* @param msf Pointer to a SCSI_TRACK_MSF struct
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* @returns true if track found
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*/
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BOOL atapi_get_track_msf(struct SCSI_CD_TOC *toc, int trackNum, struct SCSI_TRACK_MSF *msf) {
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if (toc == NULL || msf == NULL) {
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return false;
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}
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int numTracks = (toc->lastTrack - toc->firstTrack) + 1;
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for (int t=0; t<=numTracks; t++) {
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if (toc->td[t].trackNumber == trackNum) {
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msf->minute = toc->td[t].minute;
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msf->second = toc->td[t].second;
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msf->frame = toc->td[t].frame;
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return true;
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}
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}
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return false;
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}
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/**
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* atapi_play_track_index
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*
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* Find tracks <start> and <end> in TOC and issue a PLAY AUDIO MSF command
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*
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* @param unit Pointer to an IDEUnit struct
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* @param start Start track number
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* @param end End track number
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* @returns non-zero on error
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*/
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BYTE atapi_play_track_index(struct IDEUnit *unit, UBYTE start, UBYTE end) {
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BYTE ret = 0;
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struct SCSI_TRACK_MSF startmsf, endmsf;
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struct SCSI_CD_TOC *toc = AllocMem(SCSI_TOC_SIZE,MEMF_ANY|MEMF_CLEAR);
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if (toc == NULL) return TDERR_NoMem;
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ret = atapi_read_toc(unit,(BYTE *)toc,SCSI_TOC_SIZE);
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if (ret == 0) {
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if (end > toc->lastTrack) end = 0xAA; // Lead out
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if (atapi_get_track_msf(toc,start,&startmsf) &&
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atapi_get_track_msf(toc,end,&endmsf))
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{
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ret = atapi_play_audio_msf(unit,&startmsf,&endmsf);
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} else {
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ret = IOERR_BADADDRESS;
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}
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}
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FreeMem(toc,SCSI_TOC_SIZE);
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return ret;
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}
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/**
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* atapi_play_audio_msf
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*
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* Issue a PLAY AUDIO MSF command to the drive
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*
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* @param unit Pointer to an IDEUnit struct
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* @param start Pointer to a SCSI_TRACK_MSF struct for the starting position
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* @param end Pointer to a SCSI_TRACK_MSF struct for the ending position
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* @returns non-zero on error
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*/
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BYTE atapi_play_audio_msf(struct IDEUnit *unit, struct SCSI_TRACK_MSF *start, struct SCSI_TRACK_MSF *end) {
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BYTE ret = 0;
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struct SCSICmd *cmd = MakeSCSICmd(SZ_CDB_10);
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if (cmd == NULL) return TDERR_NoMem;
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cmd->scsi_Command[0] = SCSI_CMD_PLAY_AUDIO_MSF;
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cmd->scsi_Command[3] = start->minute;
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cmd->scsi_Command[4] = start->second;
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cmd->scsi_Command[5] = start->frame;
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cmd->scsi_Command[6] = end->minute;
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cmd->scsi_Command[7] = end->second;
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cmd->scsi_Command[8] = end->frame;
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cmd->scsi_Flags = SCSIF_READ;
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cmd->scsi_Data = NULL;
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cmd->scsi_Length = 0;
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ret = atapi_packet(cmd,unit);
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DeleteSCSICmd(cmd);
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return ret;
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}
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/**
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* atapi_translate_play_audio_index
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*
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* PLAY AUDIO INDEX was deprecated with SCSI-3 and is not supported by ATAPI drives
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* Some software makes use of this, so we translate it to a PLAY AUDIO MSF command
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*
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* @param cmd Pointer to a SCSICmd struct for a PLAY AUDIO INDEX command
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* @param unit Pointer to an IDEUnit struct
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* @returns non-zero on error
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*/
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BYTE atapi_translate_play_audio_index(struct SCSICmd *cmd, struct IDEUnit *unit) {
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UBYTE start = cmd->scsi_Command[4];
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UBYTE end = cmd->scsi_Command[7];
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BYTE ret = 0;
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ret = atapi_play_track_index(unit,start,end);
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cmd->scsi_CmdActual = cmd->scsi_CmdLength;
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cmd->scsi_Status = (ret == 0) ? 0 : SCSI_CHECK_CONDITION;
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return ret;
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}
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6
atapi.h
6
atapi.h
@ -7,6 +7,7 @@
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#include <stdbool.h>
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#include "device.h"
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#include "scsi.h"
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#include <exec/types.h>
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#define atapi_flag_cd (1<<0)
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@ -49,4 +50,9 @@ BYTE atapi_start_stop_unit(struct IDEUnit *unit, bool start, bool loej);
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BYTE atapi_check_wp(struct IDEUnit *unit);
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bool atapi_update_presence(struct IDEUnit *unit, bool present);
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void atapi_do_defer_tur(struct IDEUnit *unit, UBYTE cmd);
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BYTE atapi_read_toc(struct IDEUnit *unit, BYTE *buf, ULONG bufSize);
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BOOL atapi_get_track_msf(struct SCSI_CD_TOC *toc, int trackNum, struct SCSI_TRACK_MSF *msf);
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BYTE atapi_play_track_index(struct IDEUnit *unit, UBYTE start, UBYTE end);
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BYTE atapi_play_audio_msf(struct IDEUnit *unit, struct SCSI_TRACK_MSF *start, struct SCSI_TRACK_MSF *end);
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BYTE atapi_translate_play_audio_index(struct SCSICmd *cmd, struct IDEUnit *unit);
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#endif
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@ -184,7 +184,7 @@ static BYTE handle_scsi_command(struct IOStdReq *ioreq) {
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enum xfer_dir direction = WRITE;
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Trace("SCSI: Command %ld\n",*scsi_command->scsi_Command);
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Trace("SCSI: Command %lx\n",*scsi_command->scsi_Command);
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if (unit->atapi == false)
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{
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@ -270,6 +270,10 @@ static BYTE handle_scsi_command(struct IOStdReq *ioreq) {
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error = atapi_scsi_mode_select_6(scsi_command,unit);
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break;
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case SCSI_CMD_PLAY_TRACK_INDEX:
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error = atapi_translate_play_audio_index(scsi_command,unit);
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break;
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case SCSI_CMD_READ_CAPACITY_10:
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// CDROMs don't support parameters for READ_CAPACITY_10 so clear them all
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for (int i=1; i < scsi_command->scsi_CmdLength; i++) {
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39
scsi.h
39
scsi.h
@ -2,6 +2,9 @@
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/* This file is part of lide.device
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* Copyright (C) 2023 Matthew Harlum <matt@harlum.net>
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*/
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#ifndef _SCSI_H
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#define _SCSI_H
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#define SCSI_CMD_TEST_UNIT_READY 0x00
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#define SCSI_CMD_REQUEST_SENSE 0x03
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#define SCSI_CMD_READ_6 0x08
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@ -12,6 +15,9 @@
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#define SCSI_CMD_READ_CAPACITY_10 0x25
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#define SCSI_CMD_READ_10 0x28
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#define SCSI_CMD_WRITE_10 0x2A
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#define SCSI_CMD_READ_TOC 0x43
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#define SCSI_CMD_PLAY_AUDIO_MSF 0x47
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#define SCSI_CMD_PLAY_TRACK_INDEX 0x48
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#define SCSI_CMD_MODE_SELECT_10 0x55
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#define SCSI_CMD_MODE_SENSE_10 0x5A
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#define SCSI_CMD_START_STOP_UNIT 0x1B
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@ -21,6 +27,10 @@
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#define SZ_CDB_10 10
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#define SZ_CDB_12 12
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#define SCSI_CD_MAX_TRACKS 100
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#define SCSI_TOC_SIZE (SCSI_CD_MAX_TRACKS * 8) + 4 // SCSI_CD_MAX_TRACKS track descriptors + the toc header
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struct __attribute__((packed)) SCSI_Inquiry {
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UBYTE peripheral_type;
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UBYTE removable_media;
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@ -79,6 +89,33 @@ struct __attribute__((packed)) SCSI_FIXED_SENSE {
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UBYTE sks[3];
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};
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struct __attribute__((packed)) SCSI_TOC_TRACK_DESCRIPTOR {
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UBYTE reserved1;
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UBYTE adrControl;
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UBYTE trackNumber;
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UBYTE reserved2;
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UBYTE reserved3;
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UBYTE minute;
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UBYTE second;
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UBYTE frame;
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};
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struct __attribute__((packed)) SCSI_CD_TOC {
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UWORD length;
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UBYTE firstTrack;
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UBYTE lastTrack;
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struct SCSI_TOC_TRACK_DESCRIPTOR td[SCSI_CD_MAX_TRACKS];
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};
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struct __attribute__((packed)) SCSI_TRACK_MSF {
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UBYTE minute;
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UBYTE second;
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UBYTE frame;
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};
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void scsi_sense(struct SCSICmd* command, ULONG info, ULONG specific, BYTE error);
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struct SCSICmd * MakeSCSICmd(ULONG cdbSize);
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void DeleteSCSICmd(struct SCSICmd *cmd);
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void DeleteSCSICmd(struct SCSICmd *cmd);
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#endif
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