269 lines
6.4 KiB
C
269 lines
6.4 KiB
C
/*
|
|
* 86Box A hypervisor and IBM PC system emulator that specializes in
|
|
* running old operating systems and software designed for IBM
|
|
* PC systems and compatibles from 1981 through fairly recent
|
|
* system designs based on the PCI bus.
|
|
*
|
|
* This file is part of the 86Box distribution.
|
|
*
|
|
* Implementation of the CD-ROM drive with SCSI(-like)
|
|
* commands, for both ATAPI and SCSI usage.
|
|
*
|
|
* Version: @(#)cdrom.h 1.0.4 2017/11/01
|
|
*
|
|
* Author: Miran Grca, <mgrca8@gmail.com>
|
|
*
|
|
* Copyright 2016,2017 Miran Grca.
|
|
*/
|
|
#ifndef EMU_CDROM_H
|
|
#define EMU_CDROM_H
|
|
|
|
|
|
#define CDROM_NUM 4
|
|
|
|
#define CD_STATUS_EMPTY 0
|
|
#define CD_STATUS_DATA_ONLY 1
|
|
#define CD_STATUS_PLAYING 2
|
|
#define CD_STATUS_PAUSED 3
|
|
#define CD_STATUS_STOPPED 4
|
|
|
|
#define CDROM_PHASE_IDLE 0
|
|
#define CDROM_PHASE_COMMAND 1
|
|
#define CDROM_PHASE_COMPLETE 2
|
|
#define CDROM_PHASE_DATA_IN 3
|
|
#define CDROM_PHASE_DATA_IN_DMA 4
|
|
#define CDROM_PHASE_DATA_OUT 5
|
|
#define CDROM_PHASE_DATA_OUT_DMA 6
|
|
#define CDROM_PHASE_ERROR 0x80
|
|
|
|
#define BUF_SIZE 32768
|
|
|
|
#define CDROM_IMAGE 200
|
|
|
|
#define IDE_TIME (5LL * 100LL * (1LL << TIMER_SHIFT))
|
|
#define CDROM_TIME (5LL * 100LL * (1LL << TIMER_SHIFT))
|
|
|
|
|
|
enum {
|
|
CDROM_BUS_DISABLED = 0,
|
|
CDROM_BUS_ATAPI_PIO_ONLY = 4,
|
|
CDROM_BUS_ATAPI_PIO_AND_DMA,
|
|
CDROM_BUS_SCSI,
|
|
CDROM_BUS_USB = 8
|
|
};
|
|
|
|
|
|
typedef struct {
|
|
int (*ready)(uint8_t id);
|
|
int (*medium_changed)(uint8_t id);
|
|
int (*media_type_id)(uint8_t id);
|
|
|
|
void (*audio_callback)(uint8_t id, int16_t *output, int len);
|
|
void (*audio_stop)(uint8_t id);
|
|
int (*readtoc)(uint8_t id, uint8_t *b, uint8_t starttrack, int msf, int maxlen, int single);
|
|
int (*readtoc_session)(uint8_t id, uint8_t *b, int msf, int maxlen);
|
|
int (*readtoc_raw)(uint8_t id, uint8_t *b, int maxlen);
|
|
uint8_t (*getcurrentsubchannel)(uint8_t id, uint8_t *b, int msf);
|
|
int (*pass_through)(uint8_t id, uint8_t *in_cdb, uint8_t *b, uint32_t *len);
|
|
int (*readsector_raw)(uint8_t id, uint8_t *buffer, int sector, int ismsf, int cdrom_sector_type, int cdrom_sector_flags, int *len);
|
|
void (*playaudio)(uint8_t id, uint32_t pos, uint32_t len, int ismsf);
|
|
void (*load)(uint8_t id);
|
|
void (*eject)(uint8_t id);
|
|
void (*pause)(uint8_t id);
|
|
void (*resume)(uint8_t id);
|
|
uint32_t (*size)(uint8_t id);
|
|
int (*status)(uint8_t id);
|
|
int (*is_track_audio)(uint8_t id, uint32_t pos, int ismsf);
|
|
void (*stop)(uint8_t id);
|
|
void (*exit)(uint8_t id);
|
|
} CDROM;
|
|
|
|
typedef struct {
|
|
uint8_t previous_command;
|
|
|
|
int toctimes;
|
|
int media_status;
|
|
|
|
int is_dma;
|
|
|
|
int requested_blocks; /* This will be set to something other than 1 when block reads are implemented. */
|
|
|
|
uint64_t current_page_code;
|
|
int current_page_len;
|
|
|
|
int current_page_pos;
|
|
|
|
int mode_select_phase;
|
|
|
|
int total_length;
|
|
int written_length;
|
|
|
|
int do_page_save;
|
|
|
|
uint8_t error;
|
|
uint8_t features;
|
|
uint16_t request_length;
|
|
uint16_t max_transfer_len;
|
|
uint8_t status;
|
|
uint8_t phase;
|
|
|
|
uint32_t sector_pos;
|
|
uint32_t sector_len;
|
|
|
|
uint32_t packet_len;
|
|
int packet_status;
|
|
|
|
uint8_t atapi_cdb[16];
|
|
uint8_t current_cdb[16];
|
|
|
|
uint32_t pos;
|
|
|
|
int callback;
|
|
|
|
int data_pos;
|
|
|
|
int cdb_len_setting;
|
|
int cdb_len;
|
|
|
|
int cd_status;
|
|
int prev_status;
|
|
|
|
int unit_attention;
|
|
uint8_t sense[256];
|
|
|
|
int request_pos;
|
|
|
|
uint8_t *buffer;
|
|
|
|
int times;
|
|
|
|
uint32_t seek_pos;
|
|
|
|
int total_read;
|
|
|
|
int block_total;
|
|
int all_blocks_total;
|
|
|
|
int old_len;
|
|
int block_descriptor_len;
|
|
|
|
int init_length;
|
|
} cdrom_t;
|
|
|
|
typedef struct {
|
|
int max_blocks_at_once;
|
|
|
|
CDROM *handler;
|
|
|
|
int host_drive;
|
|
int prev_host_drive;
|
|
|
|
unsigned int bus_type; /* 0 = ATAPI, 1 = SCSI */
|
|
uint8_t bus_mode; /* Bit 0 = PIO suported;
|
|
Bit 1 = DMA supportd. */
|
|
|
|
uint8_t ide_channel;
|
|
|
|
unsigned int scsi_device_id;
|
|
unsigned int scsi_device_lun;
|
|
|
|
unsigned int sound_on;
|
|
unsigned int atapi_dma;
|
|
} cdrom_drive_t;
|
|
|
|
typedef struct {
|
|
int image_is_iso;
|
|
|
|
uint32_t last_block;
|
|
uint32_t cdrom_capacity;
|
|
int image_inited;
|
|
wchar_t image_path[1024];
|
|
wchar_t prev_image_path[1024];
|
|
FILE* image;
|
|
int image_changed;
|
|
|
|
int cd_state;
|
|
uint32_t cd_pos;
|
|
uint32_t cd_end;
|
|
int16_t cd_buffer[BUF_SIZE];
|
|
int cd_buflen;
|
|
} cdrom_image_t;
|
|
|
|
typedef struct {
|
|
uint32_t last_block;
|
|
uint32_t cdrom_capacity;
|
|
int ioctl_inited;
|
|
char ioctl_path[8];
|
|
int tocvalid;
|
|
int cd_state;
|
|
uint32_t cd_end;
|
|
int16_t cd_buffer[BUF_SIZE];
|
|
int cd_buflen;
|
|
int actual_requested_blocks;
|
|
int last_track_pos;
|
|
int last_track_nr;
|
|
int capacity_read;
|
|
uint8_t rcbuf[16];
|
|
uint8_t sub_q_data_format[16];
|
|
uint8_t sub_q_channel_data[256];
|
|
int last_subchannel_pos;
|
|
} cdrom_ioctl_t;
|
|
|
|
|
|
extern cdrom_t cdrom[CDROM_NUM];
|
|
extern cdrom_drive_t cdrom_drives[CDROM_NUM];
|
|
extern uint8_t atapi_cdrom_drives[8];
|
|
extern uint8_t scsi_cdrom_drives[16][8];
|
|
extern cdrom_image_t cdrom_image[CDROM_NUM];
|
|
extern cdrom_ioctl_t cdrom_ioctl[CDROM_NUM];
|
|
|
|
#define cdrom_sense_error cdrom[id].sense[0]
|
|
#define cdrom_sense_key cdrom[id].sense[2]
|
|
#define cdrom_asc cdrom[id].sense[12]
|
|
#define cdrom_ascq cdrom[id].sense[13]
|
|
#define cdrom_drive cdrom_drives[id].host_drive
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
extern int (*ide_bus_master_read)(int channel, uint8_t *data, int transfer_length);
|
|
extern int (*ide_bus_master_write)(int channel, uint8_t *data, int transfer_length);
|
|
extern void (*ide_bus_master_set_irq)(int channel);
|
|
extern void ioctl_close(uint8_t id);
|
|
|
|
extern uint32_t cdrom_mode_sense_get_channel(uint8_t id, int channel);
|
|
extern uint32_t cdrom_mode_sense_get_volume(uint8_t id, int channel);
|
|
extern void build_atapi_cdrom_map(void);
|
|
extern void build_scsi_cdrom_map(void);
|
|
extern int cdrom_CDROM_PHASE_to_scsi(uint8_t id);
|
|
extern int cdrom_atapi_phase_to_scsi(uint8_t id);
|
|
extern void cdrom_command(uint8_t id, uint8_t *cdb);
|
|
extern void cdrom_phase_callback(uint8_t id);
|
|
extern uint32_t cdrom_read(uint8_t channel, int length);
|
|
extern void cdrom_write(uint8_t channel, uint32_t val, int length);
|
|
|
|
extern int cdrom_lba_to_msf_accurate(int lba);
|
|
|
|
extern void cdrom_close(uint8_t id);
|
|
extern void cdrom_reset(uint8_t id);
|
|
extern void cdrom_set_signature(int id);
|
|
extern void cdrom_request_sense_for_scsi(uint8_t id, uint8_t *buffer, uint8_t alloc_length);
|
|
extern void cdrom_update_cdb(uint8_t *cdb, int lba_pos, int number_of_blocks);
|
|
extern void cdrom_insert(uint8_t id);
|
|
|
|
extern int find_cdrom_for_scsi_id(uint8_t scsi_id, uint8_t scsi_lun);
|
|
extern int cdrom_read_capacity(uint8_t id, uint8_t *cdb, uint8_t *buffer, uint32_t *len);
|
|
|
|
extern void cdrom_global_init(void);
|
|
extern void cdrom_global_reset(void);
|
|
extern void cdrom_hard_reset(void);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
#endif /*EMU_CDROM_H*/
|