/* * 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 /* 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; /* The result of the last successful request sense command on this device. */ struct request_sense sense_data; struct request request_sense_request; unsigned long last_block; unsigned long start_seek; 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 request_sense *, int, unsigned int); 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 */