mirror of
https://github.com/86Box/86Box.git
synced 2026-02-22 17:45:31 -07:00
f6ef1f833c
Thoroughly clean up the code to vastly reduce the number of compiler warnings and found and fixed several bugs in the process; Applied all mainline PCem commits; Added SCSI hard disk emulation; Commented out all unfinished machines and graphics cards; Added the AOpen AP53 and ASUS P/I-P55T2 machines as well as another Tyan 440FX machine, all three with AMI WinBIOS (patch from TheCollector1995); Added the Diamond Stealth 3D 3000 (S3 ViRGE/VX) graphics card (patch from TheCollector1995); Added the PS/2 XT IDE (AccuLogic) HDD Controller (patch from TheCollector1995); Added Microsoft/Logitech Bus Mouse emulation (patch from waltje); Overhauled the makefiles (patch from waltje); Added the Adaptec AHA-1542CF SCSI controller (patch from waltje); Added preliminary (but still unfinished) Adaptec AHA-154x SCSI controller BIOS support (patch from waltje); Added an ISABugger debugging device (patch from waltje); Added sanity checks to the Direct3D code.
128 lines
2.1 KiB
C
128 lines
2.1 KiB
C
/* Copyright holders: Sarah Walker
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see COPYING for more details
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*/
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#include "ibm.h"
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#include "cdrom.h"
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#include "cdrom-ioctl.h"
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static CDROM null_cdrom;
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static int null_ready(uint8_t id)
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{
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return 0;
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}
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/* Always return 0, the contents of a null CD-ROM drive never change. */
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static int null_medium_changed(uint8_t id)
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{
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return 0;
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}
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static uint8_t null_getcurrentsubchannel(uint8_t id, uint8_t *b, int msf)
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{
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return 0x13;
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}
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static void null_eject(uint8_t id)
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{
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}
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static void null_load(uint8_t id)
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{
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}
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static int null_sector_data_type(uint8_t id, int sector, int ismsf)
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{
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return 0;
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}
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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)
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{
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*len = 0;
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return 0;
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}
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static int null_readtoc(uint8_t id, unsigned char *b, unsigned char starttrack, int msf, int maxlen, int single)
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{
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return 0;
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}
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static int null_readtoc_session(uint8_t id, unsigned char *b, int msf, int maxlen)
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{
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return 0;
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}
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static int null_readtoc_raw(uint8_t id, unsigned char *b, int msf, int maxlen)
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{
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return 0;
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}
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static uint32_t null_size(uint8_t id)
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{
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return 0;
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}
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static int null_status(uint8_t id)
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{
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return CD_STATUS_EMPTY;
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}
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void cdrom_null_reset(uint8_t id)
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{
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}
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int cdrom_null_open(uint8_t id, char d)
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{
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cdrom_drives[id].handler = &null_cdrom;
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return 0;
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}
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void null_close(uint8_t id)
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{
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}
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static void null_exit(uint8_t id)
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{
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}
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static int null_is_track_audio(uint8_t id, uint32_t pos, int ismsf)
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{
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return 0;
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}
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static int null_pass_through(uint8_t id, uint8_t *in_cdb, uint8_t *b, uint32_t *len)
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{
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return 0;
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}
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static int null_media_type_id(uint8_t id)
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{
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return 0x70;
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}
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static CDROM null_cdrom =
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{
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null_ready,
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null_medium_changed,
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null_media_type_id,
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NULL,
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NULL,
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null_readtoc,
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null_readtoc_session,
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null_readtoc_raw,
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null_getcurrentsubchannel,
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null_pass_through,
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null_sector_data_type,
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null_readsector_raw,
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NULL,
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null_load,
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null_eject,
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NULL,
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NULL,
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null_size,
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null_status,
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null_is_track_audio,
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NULL,
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null_exit
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};
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