Functions to access the system calls of the Dreamcast ROM. More...

#include <kos/cdefs.h>
#include <stdint.h>
#include <sys/types.h>

Data Structures
struct	cd_check_drive_status_t
	Status filled by Check Drive syscall. More...

struct	cd_read_params_t
	Params for READ commands. More...

struct	cd_toc_t
	TOC structure returned by the BIOS. More...

struct	cd_cmd_toc_params_t
	Params for GETTOC commands. More...

struct	cd_cmd_play_params_t
	Params for PLAY command. More...

struct	cd_cmd_getscd_params_t
	Params for GETSCD command. More...

struct	cd_cmd_chk_status_t
	GDROM Command Extra Status. More...

struct	cd_sec_mode_params_t
	Sector mode params. More...

struct	cd_transfer_params_t
	Parameters for transfer. More...

Typedefs
typedef int32_t	gdc_cmd_hnd_t
	Handle for a requested command.

Enumerations
enum	cd_stat_t { CD_STATUS_READ_FAIL = -1 , CD_STATUS_BUSY = 0 , CD_STATUS_PAUSED = 1 , CD_STATUS_STANDBY = 2 , CD_STATUS_PLAYING = 3 , CD_STATUS_SEEKING = 4 , CD_STATUS_SCANNING = 5 , CD_STATUS_OPEN = 6 , CD_STATUS_NO_DISC = 7 , CD_STATUS_RETRY = 8 , CD_STATUS_ERROR = 9 , CD_STATUS_FATAL = 12 }
	Status of GDROM drive. More...

enum	cd_disc_types_t { CD_CDDA = 0x00 , CD_CDROM = 0x10 , CD_CDROM_XA = 0x20 , CD_CDI = 0x30 , CD_GDROM = 0x80 , CD_FAIL = 0xf0 }
	Disc types the GDROM can identify. More...

enum	cd_cmd_code_t { CD_CMD_CHECK_LICENSE = 2 , CD_CMD_REQ_SPI_CMD = 4 , CD_CMD_PIOREAD = 16 , CD_CMD_DMAREAD = 17 , CD_CMD_GETTOC = 18 , CD_CMD_GETTOC2 = 19 , CD_CMD_PLAY_TRACKS = 20 , CD_CMD_PLAY_SECTORS = 21 , CD_CMD_PAUSE = 22 , CD_CMD_RELEASE = 23 , CD_CMD_INIT = 24 , CD_CMD_DMA_ABORT = 25 , CD_CMD_OPEN_TRAY = 26 , CD_CMD_SEEK = 27 , CD_CMD_DMAREAD_STREAM = 28 , CD_CMD_NOP = 29 , CD_CMD_REQ_MODE = 30 , CD_CMD_SET_MODE = 31 , CD_CMD_SCAN_CD = 32 , CD_CMD_STOP = 33 , CD_CMD_GETSCD = 34 , CD_CMD_GETSES = 35 , CD_CMD_REQ_STAT = 36 , CD_CMD_PIOREAD_STREAM = 37 , CD_CMD_DMAREAD_STREAM_EX = 38 , CD_CMD_PIOREAD_STREAM_EX = 39 , CD_CMD_GET_VERS = 40 , CD_CMD_MAX = 47 }
	Command codes for GDROM syscalls. More...

enum	cd_area_t { CD_AREA_LOW = 0 , CD_AREA_HIGH = 1 }
	Disc area to read TOC from. More...

enum	cd_sub_type_t { CD_SUB_Q_ALL = 0 , CD_SUB_Q_CHANNEL = 1 , CD_SUB_MEDIA_CATALOG = 2 , CD_SUB_TRACK_ISRC = 3 , CD_SUB_RESERVED = 4 }
	Types of data to read from sector subcode. More...

enum	cd_sub_audio_t { CD_SUB_AUDIO_STATUS_INVALID = 0x00 , CD_SUB_AUDIO_STATUS_PLAYING = 0x11 , CD_SUB_AUDIO_STATUS_PAUSED = 0x12 , CD_SUB_AUDIO_STATUS_ENDED = 0x13 , CD_SUB_AUDIO_STATUS_ERROR = 0x14 , CD_SUB_AUDIO_STATUS_NO_INFO = 0x15 }
	Subcode Audio Statuses. More...

enum	cd_cmd_chk_t { CD_CMD_FAILED = -1 , CD_CMD_NOT_FOUND = 0 , CD_CMD_PROCESSING = 1 , CD_CMD_COMPLETED = 2 , CD_CMD_STREAMING = 3 , CD_CMD_BUSY = 4 }
	Responses from GDROM check command syscall. More...

enum	cd_cmd_chk_ata_status_t { ATA_STAT_INTERNAL = 0x00 , ATA_STAT_IRQ = 0x01 , ATA_STAT_DRQ_0 = 0x02 , ATA_STAT_DRQ_1 = 0x03 , ATA_STAT_BUSY = 0x04 }
	ATA Statuses. More...

enum	cd_read_sec_part_t { CDROM_READ_WHOLE_SECTOR = 0x1000 , CDROM_READ_DATA_AREA = 0x2000 , CDROM_READ_DEFAULT = -1 }
	Read Sector Part. More...

Functions
void	syscall_sysinfo_init (void)
	Inits data needed by sysinfo id/icon.

int	syscall_sysinfo_icon (uint32_t icon, uint8_t *dest)
	Reads an icon from the flashrom.

uint64_t	syscall_sysinfo_id (void)
	Reads the ID of the Dreamcast.

uint8_t *	syscall_font_address (void)
	Gets the romfont address.

int	syscall_font_lock (void)
	Locks access to ROM font.

void	syscall_font_unlock (void)
	Unlocks access to ROM font.

int	syscall_flashrom_info (uint32_t part, void *info)
	Gets info on partition in the flashrom.

int	syscall_flashrom_read (uint32_t pos, void *dest, size_t n)
	Read data from the flashrom.

int	syscall_flashrom_write (uint32_t pos, const void *src, size_t n)
	Write data to the flashrom.

int	syscall_flashrom_delete (uint32_t pos)
	Delete a partition of the flashrom.

void	syscall_gdrom_init (void)
	Initialize the GDROM drive.

void	syscall_gdrom_reset (void)
	Reset the GDROM drive.

int	syscall_gdrom_check_drive (cd_check_drive_status_t *status)
	Checks the GDROM drive status.

gdc_cmd_hnd_t	syscall_gdrom_send_command (cd_cmd_code_t cmd, void *params)
	Send a command to the GDROM command queue.

cd_cmd_chk_t	syscall_gdrom_check_command (gdc_cmd_hnd_t hnd, cd_cmd_chk_status_t *status)
	Check status of queued command for the GDROM.

void	syscall_gdrom_exec_server (void)
	Process queued GDROM commands.

int	syscall_gdrom_abort_command (gdc_cmd_hnd_t hnd)
	Abort a queued GDROM command.

int	syscall_gdrom_sector_mode (cd_sec_mode_params_t *mode)
	Sets/gets the sector mode for read commands.

void	syscall_gdrom_dma_callback (uintptr_t callback, void *param)
	Setup GDROM DMA callback.

int	syscall_gdrom_dma_transfer (gdc_cmd_hnd_t hnd, const cd_transfer_params_t *params)
	Initiates a GDROM DMA transfer.

int	syscall_gdrom_dma_check (gdc_cmd_hnd_t hnd, size_t *size)
	Checks a GDROM DMA transfer.

void	syscall_gdrom_pio_callback (uintptr_t callback, void *param)
	Setup GDROM PIO callback.

int	syscall_gdrom_pio_transfer (gdc_cmd_hnd_t hnd, const cd_transfer_params_t *params)
	Initiates a GDROM PIO transfer.

int	syscall_gdrom_pio_check (gdc_cmd_hnd_t hnd, size_t *size)
	Checks a GDROM PIO transfer.

int	syscall_misc_init (void)
	Initializes all the syscall vectors.

int	syscall_misc_setvector (uint32_t super, uintptr_t handler)
	Set/Clear a user defined super function.

void	syscall_system_reset (void) __noreturn
	Resets the Dreamcast.

void	syscall_system_bios_menu (void) __noreturn
	Go to the BIOS menu.

void	syscall_system_cd_menu (void) __noreturn
	Exit to CD menu.

Detailed Description

Functions to access the system calls of the Dreamcast ROM.

Todo

syscall_sysinfo_icon(): Discover + document icon format.
Look into additional syscall vector for GD-ROM - 0x0C0000C0

Author: Marcus Comstedt; Andy Barajas

Data Structures

Typedefs

Enumerations

Functions

Detailed Description