80486DX2-66/86Box-fork
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TC1995's port of the IBM PS/2 MCA SCSI controller (Spock).

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This commit is contained in:
OBattler
2020-03-24 01:00:28 +01:00
parent 54b4a238fb
commit 00ec4b72ea
9 changed files with 1474 additions and 21 deletions
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140
src/cdrom/cdrom.c
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@@ -8,7 +8,7 @@
*
* Generic CD-ROM drive core.
*
* Version: @(#)cdrom.c 1.0.9 2019/12/13
* Version: @(#)cdrom.c 1.0.10 2020/03/23
*
* Author: Miran Grca, <mgrca8@gmail.com>
*
@@ -41,6 +41,8 @@
#define MIN_SEEK 2000
#define MAX_SEEK 333333
#define CD_BCD(x) (((x) % 10) | (((x) / 10) << 4))
#define CD_DCB(x) ((((x) & 0xf0) >> 4) * 10 + ((x) & 0x0f))
#pragma pack(push,1)
typedef struct {
@@ -345,6 +347,72 @@ cdrom_audio_play(cdrom_t *dev, uint32_t pos, uint32_t len, int ismsf)
return 1;
}
uint8_t
cdrom_audio_track_search(cdrom_t *dev, uint32_t pos, int type, uint8_t playbit)
{
int m = 0, s = 0, f = 0;
if (dev->cd_status == CD_STATUS_DATA_ONLY)
return 0;
switch (type) {
case 0x40:
cdrom_log("Audio Track Search: MSF = %06x, type = %02x\n", pos, type);
m = CD_DCB((pos >> 24) & 0xff);
s = CD_DCB((pos >> 16) & 0xff);
f = CD_DCB((pos >> 8) & 0xff);
pos = MSFtoLBA(m, s, f) - 150;
break;
}
/* Do this at this point, since it's at this point that we know the
actual LBA position to start playing from. */
if (!(dev->ops->track_type(dev, pos) & CD_TRACK_AUDIO)) {
cdrom_log("CD-ROM %i: LBA %08X not on an audio track\n", dev->id, pos);
cdrom_stop(dev);
return 0;
}
dev->seek_pos = pos;
dev->noplay = !playbit;
dev->cd_status = playbit ? CD_STATUS_PLAYING : CD_STATUS_PAUSED;
return 1;
}
uint8_t
cdrom_toshiba_audio_play(cdrom_t *dev, uint32_t pos, int type)
{
int m = 0, s = 0, f = 0;
if (dev->cd_status == CD_STATUS_DATA_ONLY)
return 0;
if (dev->cd_status == CD_STATUS_STOPPED || dev->cd_status == CD_STATUS_PAUSED)
dev->cd_status = CD_STATUS_PLAYING;
/*Preliminary support, revert if too incomplete*/
switch (type) {
case 0x40:
cdrom_log("Toshiba Play Audio: MSF = %06x, type = %02x\n", pos, type);
m = CD_DCB((pos >> 24) & 0xff);
s = CD_DCB((pos >> 16) & 0xff);
f = CD_DCB((pos >> 8) & 0xff);
pos = MSFtoLBA(m, s, f) - 150;
break;
}
/* Do this at this point, since it's at this point that we know the
actual LBA position to start playing from. */
if (!(dev->ops->track_type(dev, pos) & CD_TRACK_AUDIO)) {
cdrom_log("CD-ROM %i: LBA %08X not on an audio track\n", dev->id, pos);
cdrom_stop(dev);
return 0;
}
dev->cd_end = pos;
dev->cd_buflen = 0;
return 1;
}
void
cdrom_audio_pause_resume(cdrom_t *dev, uint8_t resume)
@@ -409,6 +477,38 @@ cdrom_get_current_subchannel(cdrom_t *dev, uint8_t *b, int msf)
return ret;
}
uint8_t
cdrom_get_current_subcodeq_playstatus(cdrom_t *dev, uint8_t *b)
{
uint8_t ret;
subchannel_t subc;
dev->ops->get_subchannel(dev, dev->seek_pos, &subc);
if (dev->cd_status == CD_STATUS_PLAYING)
ret = 0x00;
else if (dev->cd_status == CD_STATUS_PAUSED) {
if (dev->noplay)
ret = 0x02;
else
ret = 0x01;
}
else
ret = 0x03;
b[0] = subc.attr;
b[1] = CD_BCD(subc.track);
b[2] = CD_BCD(subc.index);
b[3] = CD_BCD(subc.rel_m);
b[4] = CD_BCD(subc.rel_s);
b[5] = CD_BCD(subc.rel_f);
b[6] = CD_BCD(subc.abs_m);
b[7] = CD_BCD(subc.abs_s);
b[8] = CD_BCD(subc.abs_f);
cdrom_log("CD-ROM %i: Returned subcode-q at %02i:%02i.%02i, track=%02x\n", dev->id, b[3], b[4], b[5], b[1]);
return ret;
}
static int
read_toc_normal(cdrom_t *dev, unsigned char *b, unsigned char start_track, int msf)
@@ -557,6 +657,44 @@ cdrom_read_toc(cdrom_t *dev, unsigned char *b, int type, unsigned char start_tra
return len;
}
void
cdrom_read_disc_info_toc(cdrom_t *dev, unsigned char *b, unsigned char track, int type)
{
track_info_t ti;
int first_track, last_track;
dev->ops->get_tracks(dev, &first_track, &last_track);
switch (type) {
case 0:
b[0] = CD_BCD(first_track);
b[1] = CD_BCD(last_track);
b[2] = 0;
b[3] = 0;
break;
case 1:
dev->ops->get_track_info(dev, 0xAA, 0, &ti);
b[0] = CD_BCD(ti.m);
b[1] = CD_BCD(ti.s);
b[2] = CD_BCD(ti.f);
b[3] = 0;
break;
case 2:
dev->ops->get_track_info(dev, CD_DCB(track), 0, &ti);
b[0] = CD_BCD(ti.m);
b[1] = CD_BCD(ti.s);
b[2] = CD_BCD(ti.f);
b[3] = ti.attr;
cdrom_log("CD-ROM %i: Returned Toshiba disc information at %02i:%02i.%02i, track=%d\n", dev->id, b[0], b[1], b[2], CD_DCB(track));
break;
case 3:
b[0] = 0x00; /*TODO: correct it further, mark it as CD-Audio/CD-ROM disc for now*/
b[1] = 0;
b[2] = 0;
b[3] = 0;
break;
}
}
static int
track_type_is_valid(uint8_t id, int type, int flags, int audio, int mode2)