diff options
Diffstat (limited to 'drivers/ide/ide-cd.h')
| -rw-r--r-- | drivers/ide/ide-cd.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/drivers/ide/ide-cd.h b/drivers/ide/ide-cd.h new file mode 100644 index 000000000..a69dc7f61 --- /dev/null +++ b/drivers/ide/ide-cd.h @@ -0,0 +1,123 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 1996-98 Erik Andersen + * Copyright (C) 1998-2000 Jens Axboe + */ +#ifndef _IDE_CD_H +#define _IDE_CD_H + +#include <linux/cdrom.h> +#include <asm/byteorder.h> + +#define IDECD_DEBUG_LOG 0 + +#if IDECD_DEBUG_LOG +#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, ## args) +#else +#define ide_debug_log(lvl, fmt, args...) do {} while (0) +#endif + +#define ATAPI_WAIT_WRITE_BUSY (10 * HZ) + +/************************************************************************/ + +#define SECTORS_PER_FRAME (CD_FRAMESIZE >> SECTOR_SHIFT) +#define SECTOR_BUFFER_SIZE (CD_FRAMESIZE * 32) + +/* Capabilities Page size including 8 bytes of Mode Page Header */ +#define ATAPI_CAPABILITIES_PAGE_SIZE (8 + 20) +#define ATAPI_CAPABILITIES_PAGE_PAD_SIZE 4 + +/* Structure of a MSF cdrom address. */ +struct atapi_msf { + u8 reserved; + u8 minute; + u8 second; + u8 frame; +}; + +/* Space to hold the disk TOC. */ +#define MAX_TRACKS 99 +struct atapi_toc_header { + unsigned short toc_length; + u8 first_track; + u8 last_track; +}; + +struct atapi_toc_entry { + u8 reserved1; +#if defined(__BIG_ENDIAN_BITFIELD) + u8 adr : 4; + u8 control : 4; +#elif defined(__LITTLE_ENDIAN_BITFIELD) + u8 control : 4; + u8 adr : 4; +#else +#error "Please fix <asm/byteorder.h>" +#endif + u8 track; + u8 reserved2; + union { + unsigned lba; + struct atapi_msf msf; + } addr; +}; + +struct atapi_toc { + int last_session_lba; + int xa_flag; + unsigned long capacity; + struct atapi_toc_header hdr; + struct atapi_toc_entry ent[MAX_TRACKS+1]; + /* One extra for the leadout. */ +}; + +/* Extra per-device info for cdrom drives. */ +struct cdrom_info { + ide_drive_t *drive; + struct ide_driver *driver; + struct gendisk *disk; + struct device dev; + + /* Buffer for table of contents. NULL if we haven't allocated + a TOC buffer for this device yet. */ + + struct atapi_toc *toc; + + u8 max_speed; /* Max speed of the drive. */ + u8 current_speed; /* Current speed of the drive. */ + + /* Per-device info needed by cdrom.c generic driver. */ + struct cdrom_device_info devinfo; + + unsigned long write_timeout; +}; + +/* ide-cd_verbose.c */ +void ide_cd_log_error(const char *, struct request *, struct request_sense *); + +/* ide-cd.c functions used by ide-cd_ioctl.c */ +int ide_cd_queue_pc(ide_drive_t *, const unsigned char *, int, void *, + unsigned *, struct scsi_sense_hdr *, int, req_flags_t); +int ide_cd_read_toc(ide_drive_t *); +int ide_cdrom_get_capabilities(ide_drive_t *, u8 *); +void ide_cdrom_update_speed(ide_drive_t *, u8 *); +int cdrom_check_status(ide_drive_t *, struct scsi_sense_hdr *); + +/* ide-cd_ioctl.c */ +int ide_cdrom_open_real(struct cdrom_device_info *, int); +void ide_cdrom_release_real(struct cdrom_device_info *); +int ide_cdrom_drive_status(struct cdrom_device_info *, int); +unsigned int ide_cdrom_check_events_real(struct cdrom_device_info *, + unsigned int clearing, int slot_nr); +int ide_cdrom_tray_move(struct cdrom_device_info *, int); +int ide_cdrom_lock_door(struct cdrom_device_info *, int); +int ide_cdrom_select_speed(struct cdrom_device_info *, int); +int ide_cdrom_get_last_session(struct cdrom_device_info *, + struct cdrom_multisession *); +int ide_cdrom_get_mcn(struct cdrom_device_info *, struct cdrom_mcn *); +int ide_cdrom_reset(struct cdrom_device_info *cdi); +int ide_cdrom_audio_ioctl(struct cdrom_device_info *, unsigned int, void *); +int ide_cdrom_packet(struct cdrom_device_info *, struct packet_command *); + +#endif /* _IDE_CD_H */ |