| /* |
| * linux/drivers/ide/ide_cd.h |
| * |
| * 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> |
| |
| /* |
| * typical timeout for packet command |
| */ |
| #define ATAPI_WAIT_PC (60 * HZ) |
| #define ATAPI_WAIT_WRITE_BUSY (10 * HZ) |
| |
| /************************************************************************/ |
| |
| #define SECTOR_BITS 9 |
| #ifndef SECTOR_SIZE |
| #define SECTOR_SIZE (1 << SECTOR_BITS) |
| #endif |
| #define SECTORS_PER_FRAME (CD_FRAMESIZE >> SECTOR_BITS) |
| #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 |
| |
| enum { |
| /* Device sends an interrupt when ready for a packet command. */ |
| IDE_CD_FLAG_DRQ_INTERRUPT = (1 << 0), |
| /* Drive cannot lock the door. */ |
| IDE_CD_FLAG_NO_DOORLOCK = (1 << 1), |
| /* Drive cannot eject the disc. */ |
| IDE_CD_FLAG_NO_EJECT = (1 << 2), |
| /* Drive is a pre ATAPI 1.2 drive. */ |
| IDE_CD_FLAG_PRE_ATAPI12 = (1 << 3), |
| /* TOC addresses are in BCD. */ |
| IDE_CD_FLAG_TOCADDR_AS_BCD = (1 << 4), |
| /* TOC track numbers are in BCD. */ |
| IDE_CD_FLAG_TOCTRACKS_AS_BCD = (1 << 5), |
| /* |
| * Drive does not provide data in multiples of SECTOR_SIZE |
| * when more than one interrupt is needed. |
| */ |
| IDE_CD_FLAG_LIMIT_NFRAMES = (1 << 6), |
| /* Seeking in progress. */ |
| IDE_CD_FLAG_SEEKING = (1 << 7), |
| /* Driver has noticed a media change. */ |
| IDE_CD_FLAG_MEDIA_CHANGED = (1 << 8), |
| /* Saved TOC information is current. */ |
| IDE_CD_FLAG_TOC_VALID = (1 << 9), |
| /* We think that the drive door is locked. */ |
| IDE_CD_FLAG_DOOR_LOCKED = (1 << 10), |
| /* SET_CD_SPEED command is unsupported. */ |
| IDE_CD_FLAG_NO_SPEED_SELECT = (1 << 11), |
| IDE_CD_FLAG_VERTOS_300_SSD = (1 << 12), |
| IDE_CD_FLAG_VERTOS_600_ESD = (1 << 13), |
| IDE_CD_FLAG_SANYO_3CD = (1 << 14), |
| IDE_CD_FLAG_FULL_CAPS_PAGE = (1 << 15), |
| IDE_CD_FLAG_PLAY_AUDIO_OK = (1 << 16), |
| IDE_CD_FLAG_LE_SPEED_FIELDS = (1 << 17), |
| }; |
| |
| /* Structure of a MSF cdrom address. */ |
| struct atapi_msf { |
| byte reserved; |
| byte minute; |
| byte second; |
| byte frame; |
| }; |
| |
| /* Space to hold the disk TOC. */ |
| #define MAX_TRACKS 99 |
| struct atapi_toc_header { |
| unsigned short toc_length; |
| byte first_track; |
| byte last_track; |
| }; |
| |
| struct atapi_toc_entry { |
| byte 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 |
| byte track; |
| byte 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; |
| ide_driver_t *driver; |
| struct gendisk *disk; |
| struct kref kref; |
| |
| /* Buffer for table of contents. NULL if we haven't allocated |
| a TOC buffer for this device yet. */ |
| |
| struct atapi_toc *toc; |
| |
| unsigned long sector_buffered; |
| unsigned long nsectors_buffered; |
| unsigned char *buffer; |
| |
| /* The result of the last successful request sense command |
| on this device. */ |
| struct request_sense sense_data; |
| |
| struct request request_sense_request; |
| int dma; |
| unsigned long last_block; |
| unsigned long start_seek; |
| |
| unsigned int cd_flags; |
| |
| 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 */ |
| void ide_cd_init_rq(ide_drive_t *, struct request *); |
| int ide_cd_queue_pc(ide_drive_t *, struct request *); |
| int ide_cd_read_toc(ide_drive_t *, struct request_sense *); |
| 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 request_sense *); |
| |
| /* 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); |
| int ide_cdrom_check_media_change_real(struct cdrom_device_info *, int); |
| 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 */ |