Files
86Box-fork/src/include/86box/hdc_ide.h
2021-08-03 16:44:09 -03:00

158 lines
4.0 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 IDE emulation for hard disks and ATAPI
* CD-ROM devices.
*
*
*
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com>
* Copyright 2008-2019 Sarah Walker.
* Copyright 2016-2019 Miran Grca.
*/
#ifndef EMU_IDE_H
# define EMU_IDE_H
enum
{
IDE_NONE = 0,
IDE_HDD,
IDE_ATAPI
};
#ifdef SCSI_DEVICE_H
typedef struct ide_s {
uint8_t selected,
atastat, error,
command, fdisk;
int type, board,
irqstat, service,
blocksize, blockcount,
hdd_num, channel,
pos, sector_pos,
lba, skip512,
reset, mdma_mode,
do_initial_read;
uint32_t secount, sector,
cylinder, head,
drive, cylprecomp,
cfg_spt, cfg_hpc,
lba_addr, tracks,
spt, hpc;
uint16_t *buffer;
uint8_t *sector_buffer;
pc_timer_t timer;
/* Stuff mostly used by ATAPI */
scsi_common_t *sc;
int interrupt_drq;
int (*get_max)(int ide_has_dma, int type);
int (*get_timings)(int ide_has_dma, int type);
void (*identify)(struct ide_s *ide, int ide_has_dma);
void (*stop)(scsi_common_t *sc);
void (*packet_command)(scsi_common_t *sc, uint8_t *cdb);
void (*device_reset)(scsi_common_t *sc);
uint8_t (*phase_data_out)(scsi_common_t *sc);
void (*command_stop)(scsi_common_t *sc);
void (*bus_master_error)(scsi_common_t *sc);
} ide_t;
extern ide_t *ide_drives[IDE_NUM];
#endif
/* Type:
0 = PIO,
1 = SDMA,
2 = MDMA,
3 = UDMA
Return:
-1 = Not supported,
Anything else = maximum mode
This will eventually be hookable. */
enum {
TYPE_PIO = 0,
TYPE_SDMA,
TYPE_MDMA,
TYPE_UDMA
};
/* Return:
0 = Not supported,
Anything else = timings
This will eventually be hookable. */
enum {
TIMINGS_DMA = 0,
TIMINGS_PIO,
TIMINGS_PIO_FC
};
extern int ide_ter_enabled, ide_qua_enabled;
#ifdef SCSI_DEVICE_H
extern ide_t * ide_get_drive(int ch);
extern void ide_irq_raise(ide_t *ide);
extern void ide_irq_lower(ide_t *ide);
extern void ide_allocate_buffer(ide_t *dev);
extern void ide_atapi_attach(ide_t *dev);
#endif
extern void * ide_xtide_init(void);
extern void ide_xtide_close(void);
extern void ide_writew(uint16_t addr, uint16_t val, void *priv);
extern void ide_write_devctl(uint16_t addr, uint8_t val, void *priv);
extern void ide_writeb(uint16_t addr, uint8_t val, void *priv);
extern uint8_t ide_readb(uint16_t addr, void *priv);
extern uint8_t ide_read_alt_status(uint16_t addr, void *priv);
extern uint16_t ide_readw(uint16_t addr, void *priv);
extern void ide_set_bus_master(int board,
int (*dma)(int channel, uint8_t *data, int transfer_length, int out, void *priv),
void (*set_irq)(int channel, void *priv), void *priv);
extern void win_cdrom_eject(uint8_t id);
extern void win_cdrom_reload(uint8_t id);
extern void ide_set_base(int board, uint16_t port);
extern void ide_set_side(int board, uint16_t port);
extern void ide_pri_enable(void);
extern void ide_pri_disable(void);
extern void ide_sec_enable(void);
extern void ide_sec_disable(void);
extern void ide_board_set_force_ata3(int board, int force_ata3);
#ifdef EMU_ISAPNP_H
extern void ide_pnp_config_changed(uint8_t ld, isapnp_device_config_t *config, void *priv);
#endif
extern double ide_atapi_get_period(uint8_t channel);
#ifdef SCSI_DEVICE_H
extern void ide_set_callback(ide_t *ide, double callback);
#endif
extern void ide_set_board_callback(uint8_t board, double callback);
extern void ide_padstr(char *str, const char *src, int len);
extern void ide_padstr8(uint8_t *buf, int buf_size, const char *src);
extern int (*ide_bus_master_dma)(int channel, uint8_t *data, int transfer_length, int out, void *priv);
extern void (*ide_bus_master_set_irq)(int channel, void *priv);
extern void *ide_bus_master_priv[2];
#endif /*EMU_IDE_H*/