ide-cd.h revision 5b03a1b140e13a28ff6be1526892a9dc538ddef6
1/* 2 * Copyright (C) 1996-98 Erik Andersen 3 * Copyright (C) 1998-2000 Jens Axboe 4 */ 5#ifndef _IDE_CD_H 6#define _IDE_CD_H 7 8#include <linux/cdrom.h> 9#include <asm/byteorder.h> 10 11#define IDECD_DEBUG_LOG 0 12 13#if IDECD_DEBUG_LOG 14#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, ## args) 15#else 16#define ide_debug_log(lvl, fmt, args...) do {} while (0) 17#endif 18 19#define ATAPI_WAIT_WRITE_BUSY (10 * HZ) 20 21/************************************************************************/ 22 23#define SECTOR_BITS 9 24#ifndef SECTOR_SIZE 25#define SECTOR_SIZE (1 << SECTOR_BITS) 26#endif 27#define SECTORS_PER_FRAME (CD_FRAMESIZE >> SECTOR_BITS) 28#define SECTOR_BUFFER_SIZE (CD_FRAMESIZE * 32) 29 30/* Capabilities Page size including 8 bytes of Mode Page Header */ 31#define ATAPI_CAPABILITIES_PAGE_SIZE (8 + 20) 32#define ATAPI_CAPABILITIES_PAGE_PAD_SIZE 4 33 34/* Structure of a MSF cdrom address. */ 35struct atapi_msf { 36 u8 reserved; 37 u8 minute; 38 u8 second; 39 u8 frame; 40}; 41 42/* Space to hold the disk TOC. */ 43#define MAX_TRACKS 99 44struct atapi_toc_header { 45 unsigned short toc_length; 46 u8 first_track; 47 u8 last_track; 48}; 49 50struct atapi_toc_entry { 51 u8 reserved1; 52#if defined(__BIG_ENDIAN_BITFIELD) 53 u8 adr : 4; 54 u8 control : 4; 55#elif defined(__LITTLE_ENDIAN_BITFIELD) 56 u8 control : 4; 57 u8 adr : 4; 58#else 59#error "Please fix <asm/byteorder.h>" 60#endif 61 u8 track; 62 u8 reserved2; 63 union { 64 unsigned lba; 65 struct atapi_msf msf; 66 } addr; 67}; 68 69struct atapi_toc { 70 int last_session_lba; 71 int xa_flag; 72 unsigned long capacity; 73 struct atapi_toc_header hdr; 74 struct atapi_toc_entry ent[MAX_TRACKS+1]; 75 /* One extra for the leadout. */ 76}; 77 78/* Extra per-device info for cdrom drives. */ 79struct cdrom_info { 80 ide_drive_t *drive; 81 struct ide_driver *driver; 82 struct gendisk *disk; 83 struct device dev; 84 85 /* Buffer for table of contents. NULL if we haven't allocated 86 a TOC buffer for this device yet. */ 87 88 struct atapi_toc *toc; 89 90 u8 max_speed; /* Max speed of the drive. */ 91 u8 current_speed; /* Current speed of the drive. */ 92 93 /* Per-device info needed by cdrom.c generic driver. */ 94 struct cdrom_device_info devinfo; 95 96 unsigned long write_timeout; 97}; 98 99/* ide-cd_verbose.c */ 100void ide_cd_log_error(const char *, struct request *, struct request_sense *); 101 102/* ide-cd.c functions used by ide-cd_ioctl.c */ 103int ide_cd_queue_pc(ide_drive_t *, const unsigned char *, int, void *, 104 unsigned *, struct request_sense *, int, unsigned int); 105int ide_cd_read_toc(ide_drive_t *, struct request_sense *); 106int ide_cdrom_get_capabilities(ide_drive_t *, u8 *); 107void ide_cdrom_update_speed(ide_drive_t *, u8 *); 108int cdrom_check_status(ide_drive_t *, struct request_sense *); 109 110/* ide-cd_ioctl.c */ 111int ide_cdrom_open_real(struct cdrom_device_info *, int); 112void ide_cdrom_release_real(struct cdrom_device_info *); 113int ide_cdrom_drive_status(struct cdrom_device_info *, int); 114unsigned int ide_cdrom_check_events_real(struct cdrom_device_info *, 115 unsigned int clearing, int slot_nr); 116int ide_cdrom_tray_move(struct cdrom_device_info *, int); 117int ide_cdrom_lock_door(struct cdrom_device_info *, int); 118int ide_cdrom_select_speed(struct cdrom_device_info *, int); 119int ide_cdrom_get_last_session(struct cdrom_device_info *, 120 struct cdrom_multisession *); 121int ide_cdrom_get_mcn(struct cdrom_device_info *, struct cdrom_mcn *); 122int ide_cdrom_reset(struct cdrom_device_info *cdi); 123int ide_cdrom_audio_ioctl(struct cdrom_device_info *, unsigned int, void *); 124int ide_cdrom_packet(struct cdrom_device_info *, struct packet_command *); 125 126#endif /* _IDE_CD_H */ 127