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Overhauled and unified CD-ROM emulation;

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Four CD-ROM drives are now emulated;
ATAPI DMA is now emulated;
Unified CD-ROM pass through to host drive handling;
Applied all (applicable) mainline PCem commits.
This commit is contained in:
OBattler
2017-01-16 01:49:19 +01:00
parent 0a11edd343
commit 4f7fd84229
41 changed files with 5953 additions and 5129 deletions
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93
src/cdrom-null.c
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@@ -5,121 +5,97 @@
#include "cdrom.h"
#include "cdrom-ioctl.h"
int cdrom_drive;
static CDROM null_cdrom;
void cdrom_null_audio_callback(int16_t *output, int len)
{
memset(output, 0, len * 2);
}
void cdrom_null_audio_stop()
{
}
static void null_playaudio(uint32_t pos, uint32_t len, int ismsf)
{
}
static void null_pause(void)
{
}
static void null_resume(void)
{
}
static void null_stop(void)
{
}
static void null_seek(uint32_t pos)
{
}
static int null_ready(void)
static int null_ready(uint8_t id)
{
return 0;
}
/* Always return 0, the contents of a null CD-ROM drive never change. */
static int null_medium_changed(void)
static int null_medium_changed(uint8_t id)
{
return 0;
}
static uint8_t null_getcurrentsubchannel(uint8_t *b, int msf)
static uint8_t null_getcurrentsubchannel(uint8_t id, uint8_t *b, int msf)
{
return 0x13;
}
static void null_eject(void)
static void null_eject(uint8_t id)
{
}
static void null_load(void)
static void null_load(uint8_t id)
{
}
static int null_sector_data_type(int sector, int ismsf)
static int null_sector_data_type(uint8_t id, int sector, int ismsf)
{
return 0;
}
static void null_readsector_raw(uint8_t *b, int sector, int ismsf)
static int null_readsector_raw(uint8_t id, uint8_t *buffer, int sector, int ismsf, int cdrom_sector_type, int cdrom_sector_flags, int *len)
{
*len = 0;
return 0;
}
static int null_read_track_information(uint8_t *in_cdb, uint8_t *b)
static int null_read_track_information(uint8_t id, uint8_t *in_cdb, uint8_t *b)
{
return 0;
}
static int null_readtoc(unsigned char *b, unsigned char starttrack, int msf, int maxlen, int single)
static int null_readtoc(uint8_t id, unsigned char *b, unsigned char starttrack, int msf, int maxlen, int single)
{
return 0;
}
static int null_readtoc_session(unsigned char *b, int msf, int maxlen)
static int null_readtoc_session(uint8_t id, unsigned char *b, int msf, int maxlen)
{
return 0;
}
static int null_readtoc_raw(unsigned char *b, int msf, int maxlen)
static int null_readtoc_raw(uint8_t id, unsigned char *b, int msf, int maxlen)
{
return 0;
}
static uint32_t null_size()
static uint32_t null_size(uint8_t id)
{
return 0;
}
static int null_status()
static int null_status(uint8_t id)
{
return CD_STATUS_EMPTY;
}
void cdrom_null_reset()
void cdrom_null_reset(uint8_t id)
{
}
int cdrom_null_open(char d)
int cdrom_null_open(uint8_t id, char d)
{
cdrom = &null_cdrom;
cdrom_drives[id].handler = &null_cdrom;
return 0;
}
void null_close(void)
void null_close(uint8_t id)
{
}
static void null_exit(void)
static void null_exit(uint8_t id)
{
}
static int null_is_track_audio(uint32_t pos, int ismsf)
static int null_is_track_audio(uint8_t id, uint32_t pos, int ismsf)
{
return 0;
}
static int null_pass_through(uint8_t id, uint8_t *in_cdb, uint8_t *b, uint32_t *len)
{
return 0;
}
@@ -128,26 +104,23 @@ static CDROM null_cdrom =
{
null_ready,
null_medium_changed,
NULL,
NULL,
null_readtoc,
null_readtoc_session,
null_readtoc_raw,
null_getcurrentsubchannel,
NULL,
NULL,
NULL,
NULL,
NULL,
null_pass_through,
null_sector_data_type,
null_readsector_raw,
null_playaudio,
null_seek,
NULL,
null_load,
null_eject,
null_pause,
null_resume,
NULL,
NULL,
null_size,
null_status,
null_is_track_audio,
null_stop,
NULL,
null_exit
};