Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Bartlomiej Zolnierkiewicz | 3bb4663 | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 2 | * ATAPI CD-ROM driver. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
Bartlomiej Zolnierkiewicz | 59bca8c | 2008-02-01 23:09:33 +0100 | [diff] [blame] | 4 | * Copyright (C) 1994-1996 Scott Snyder <snyder@fnald0.fnal.gov> |
| 5 | * Copyright (C) 1996-1998 Erik Andersen <andersee@debian.org> |
| 6 | * Copyright (C) 1998-2000 Jens Axboe <axboe@suse.de> |
| 7 | * Copyright (C) 2005, 2007 Bartlomiej Zolnierkiewicz |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | * |
| 9 | * May be copied or modified under the terms of the GNU General Public |
| 10 | * License. See linux/COPYING for more information. |
| 11 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | * See Documentation/cdrom/ide-cd for usage information. |
| 13 | * |
| 14 | * Suggestions are welcome. Patches that work are more welcome though. ;-) |
Bartlomiej Zolnierkiewicz | 116e690 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 15 | * |
| 16 | * Documentation: |
| 17 | * Mt. Fuji (SFF8090 version 4) and ATAPI (SFF-8020i rev 2.6) standards. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | * |
Bartlomiej Zolnierkiewicz | 0355335 | 2008-02-01 23:09:18 +0100 | [diff] [blame] | 19 | * For historical changelog please see: |
| 20 | * Documentation/ide/ChangeLog.ide-cd.1994-2004 |
| 21 | */ |
| 22 | |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 23 | #define DRV_NAME "ide-cd" |
| 24 | #define PFX DRV_NAME ": " |
| 25 | |
Bartlomiej Zolnierkiewicz | 3bb4663 | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 26 | #define IDECD_VERSION "5.00" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | #include <linux/module.h> |
| 29 | #include <linux/types.h> |
| 30 | #include <linux/kernel.h> |
| 31 | #include <linux/delay.h> |
| 32 | #include <linux/timer.h> |
| 33 | #include <linux/slab.h> |
| 34 | #include <linux/interrupt.h> |
| 35 | #include <linux/errno.h> |
| 36 | #include <linux/cdrom.h> |
| 37 | #include <linux/ide.h> |
| 38 | #include <linux/completion.h> |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 39 | #include <linux/mutex.h> |
Bartlomiej Zolnierkiewicz | 9a6dc66 | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 40 | #include <linux/bcd.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 42 | /* For SCSI -> ATAPI command conversion */ |
| 43 | #include <scsi/scsi.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | |
Borislav Petkov | 9aba468 | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 45 | #include <linux/irq.h> |
| 46 | #include <linux/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | #include <asm/byteorder.h> |
Borislav Petkov | 9aba468 | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 48 | #include <linux/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | #include <asm/unaligned.h> |
| 50 | |
| 51 | #include "ide-cd.h" |
| 52 | |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 53 | static DEFINE_MUTEX(idecd_ref_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | |
Bartlomiej Zolnierkiewicz | 8fed436 | 2009-02-25 20:28:24 +0100 | [diff] [blame] | 55 | static void ide_cd_release(struct device *); |
Bartlomiej Zolnierkiewicz | 08da591 | 2008-07-24 22:53:15 +0200 | [diff] [blame] | 56 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | static struct cdrom_info *ide_cd_get(struct gendisk *disk) |
| 58 | { |
| 59 | struct cdrom_info *cd = NULL; |
| 60 | |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 61 | mutex_lock(&idecd_ref_mutex); |
Borislav Petkov | 5aeddf9 | 2008-10-13 21:39:34 +0200 | [diff] [blame] | 62 | cd = ide_drv_g(disk, cdrom_info); |
Bartlomiej Zolnierkiewicz | 08da591 | 2008-07-24 22:53:15 +0200 | [diff] [blame] | 63 | if (cd) { |
Bartlomiej Zolnierkiewicz | d3e33ff | 2008-08-05 18:16:59 +0200 | [diff] [blame] | 64 | if (ide_device_get(cd->drive)) |
Bartlomiej Zolnierkiewicz | 08da591 | 2008-07-24 22:53:15 +0200 | [diff] [blame] | 65 | cd = NULL; |
Bartlomiej Zolnierkiewicz | d3e33ff | 2008-08-05 18:16:59 +0200 | [diff] [blame] | 66 | else |
Bartlomiej Zolnierkiewicz | 8fed436 | 2009-02-25 20:28:24 +0100 | [diff] [blame] | 67 | get_device(&cd->dev); |
Bartlomiej Zolnierkiewicz | d3e33ff | 2008-08-05 18:16:59 +0200 | [diff] [blame] | 68 | |
Bartlomiej Zolnierkiewicz | 08da591 | 2008-07-24 22:53:15 +0200 | [diff] [blame] | 69 | } |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 70 | mutex_unlock(&idecd_ref_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | return cd; |
| 72 | } |
| 73 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | static void ide_cd_put(struct cdrom_info *cd) |
| 75 | { |
Bartlomiej Zolnierkiewicz | d3e33ff | 2008-08-05 18:16:59 +0200 | [diff] [blame] | 76 | ide_drive_t *drive = cd->drive; |
| 77 | |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 78 | mutex_lock(&idecd_ref_mutex); |
Bartlomiej Zolnierkiewicz | 8fed436 | 2009-02-25 20:28:24 +0100 | [diff] [blame] | 79 | put_device(&cd->dev); |
Bartlomiej Zolnierkiewicz | d3e33ff | 2008-08-05 18:16:59 +0200 | [diff] [blame] | 80 | ide_device_put(drive); |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 81 | mutex_unlock(&idecd_ref_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | } |
| 83 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 84 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | * Generic packet command support and error handling routines. |
| 86 | */ |
| 87 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 88 | /* Mark that we've seen a media change and invalidate our internal buffers. */ |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 89 | static void cdrom_saw_media_change(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | { |
Bartlomiej Zolnierkiewicz | fe11edf | 2008-10-17 18:09:11 +0200 | [diff] [blame] | 91 | drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED; |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 92 | drive->atapi_flags &= ~IDE_AFLAG_TOC_VALID; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | static int cdrom_log_sense(ide_drive_t *drive, struct request *rq, |
| 96 | struct request_sense *sense) |
| 97 | { |
| 98 | int log = 0; |
| 99 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 100 | ide_debug_log(IDE_DBG_SENSE, "sense_key: 0x%x", sense->sense_key); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 101 | |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 102 | if (!sense || !rq || (rq->cmd_flags & REQ_QUIET)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | return 0; |
| 104 | |
| 105 | switch (sense->sense_key) { |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 106 | case NO_SENSE: |
| 107 | case RECOVERED_ERROR: |
| 108 | break; |
| 109 | case NOT_READY: |
| 110 | /* |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 111 | * don't care about tray state messages for e.g. capacity |
| 112 | * commands or in-progress or becoming ready |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 113 | */ |
| 114 | if (sense->asc == 0x3a || sense->asc == 0x04) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | break; |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 116 | log = 1; |
| 117 | break; |
| 118 | case ILLEGAL_REQUEST: |
| 119 | /* |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 120 | * don't log START_STOP unit with LoEj set, since we cannot |
| 121 | * reliably check if drive can auto-close |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 122 | */ |
| 123 | if (rq->cmd[0] == GPCMD_START_STOP_UNIT && sense->asc == 0x24) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | break; |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 125 | log = 1; |
| 126 | break; |
| 127 | case UNIT_ATTENTION: |
| 128 | /* |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 129 | * Make good and sure we've seen this potential media change. |
| 130 | * Some drives (i.e. Creative) fail to present the correct sense |
| 131 | * key in the error register. |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 132 | */ |
| 133 | cdrom_saw_media_change(drive); |
| 134 | break; |
| 135 | default: |
| 136 | log = 1; |
| 137 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | } |
| 139 | return log; |
| 140 | } |
| 141 | |
Borislav Petkov | e5e076a | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 142 | static void cdrom_analyze_sense_data(ide_drive_t *drive, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | struct request *failed_command, |
| 144 | struct request_sense *sense) |
| 145 | { |
Alan Cox | dbe217a | 2006-06-25 05:47:44 -0700 | [diff] [blame] | 146 | unsigned long sector; |
| 147 | unsigned long bio_sectors; |
Alan Cox | dbe217a | 2006-06-25 05:47:44 -0700 | [diff] [blame] | 148 | struct cdrom_info *info = drive->driver_data; |
| 149 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 150 | ide_debug_log(IDE_DBG_SENSE, "error_code: 0x%x, sense_key: 0x%x", |
| 151 | sense->error_code, sense->sense_key); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 152 | |
| 153 | if (failed_command) |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 154 | ide_debug_log(IDE_DBG_SENSE, "failed cmd: 0x%x", |
| 155 | failed_command->cmd[0]); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 156 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | if (!cdrom_log_sense(drive, failed_command, sense)) |
| 158 | return; |
| 159 | |
| 160 | /* |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 161 | * If a read toc is executed for a CD-R or CD-RW medium where the first |
| 162 | * toc has not been recorded yet, it will fail with 05/24/00 (which is a |
| 163 | * confusing error) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | */ |
| 165 | if (failed_command && failed_command->cmd[0] == GPCMD_READ_TOC_PMA_ATIP) |
| 166 | if (sense->sense_key == 0x05 && sense->asc == 0x24) |
| 167 | return; |
| 168 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 169 | /* current error */ |
| 170 | if (sense->error_code == 0x70) { |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 171 | switch (sense->sense_key) { |
Alan Cox | dbe217a | 2006-06-25 05:47:44 -0700 | [diff] [blame] | 172 | case MEDIUM_ERROR: |
| 173 | case VOLUME_OVERFLOW: |
| 174 | case ILLEGAL_REQUEST: |
| 175 | if (!sense->valid) |
| 176 | break; |
| 177 | if (failed_command == NULL || |
| 178 | !blk_fs_request(failed_command)) |
| 179 | break; |
| 180 | sector = (sense->information[0] << 24) | |
| 181 | (sense->information[1] << 16) | |
| 182 | (sense->information[2] << 8) | |
| 183 | (sense->information[3]); |
| 184 | |
Alan Cox | dbe217a | 2006-06-25 05:47:44 -0700 | [diff] [blame] | 185 | if (drive->queue->hardsect_size == 2048) |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 186 | /* device sector size is 2K */ |
| 187 | sector <<= 2; |
Roel Kluin | eee4929 | 2008-04-28 23:44:43 +0200 | [diff] [blame] | 188 | |
| 189 | bio_sectors = max(bio_sectors(failed_command->bio), 4U); |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 190 | sector &= ~(bio_sectors - 1); |
Alan Cox | dbe217a | 2006-06-25 05:47:44 -0700 | [diff] [blame] | 191 | |
Bartlomiej Zolnierkiewicz | d3dd710 | 2009-02-25 20:28:23 +0100 | [diff] [blame] | 192 | /* |
| 193 | * The SCSI specification allows for the value |
| 194 | * returned by READ CAPACITY to be up to 75 2K |
| 195 | * sectors past the last readable block. |
| 196 | * Therefore, if we hit a medium error within the |
| 197 | * last 75 2K sectors, we decrease the saved size |
| 198 | * value. |
| 199 | */ |
Alan Cox | dbe217a | 2006-06-25 05:47:44 -0700 | [diff] [blame] | 200 | if (sector < get_capacity(info->disk) && |
Borislav Petkov | e5e076a | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 201 | drive->probed_capacity - sector < 4 * 75) |
Alan Cox | dbe217a | 2006-06-25 05:47:44 -0700 | [diff] [blame] | 202 | set_capacity(info->disk, sector); |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 203 | } |
| 204 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | |
Bartlomiej Zolnierkiewicz | 972560f | 2008-02-01 23:09:23 +0100 | [diff] [blame] | 206 | ide_cd_log_error(drive->name, failed_command, sense); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | } |
| 208 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense, |
| 210 | struct request *failed_command) |
| 211 | { |
| 212 | struct cdrom_info *info = drive->driver_data; |
Borislav Petkov | 3f2154d | 2009-01-27 17:42:28 +0100 | [diff] [blame] | 213 | struct request *rq = &drive->request_sense_rq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 215 | ide_debug_log(IDE_DBG_SENSE, "enter"); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 216 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | if (sense == NULL) |
| 218 | sense = &info->sense_data; |
| 219 | |
| 220 | /* stuff the sense request in front of our current request */ |
FUJITA Tomonori | ed820f1 | 2008-07-15 21:21:45 +0200 | [diff] [blame] | 221 | blk_rq_init(NULL, rq); |
| 222 | rq->cmd_type = REQ_TYPE_ATA_PC; |
| 223 | rq->rq_disk = info->disk; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | |
| 225 | rq->data = sense; |
| 226 | rq->cmd[0] = GPCMD_REQUEST_SENSE; |
Borislav Petkov | e5e076a | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 227 | rq->cmd[4] = 18; |
| 228 | rq->data_len = 18; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 230 | rq->cmd_type = REQ_TYPE_SENSE; |
Bartlomiej Zolnierkiewicz | e8a96aa | 2008-07-15 21:21:41 +0200 | [diff] [blame] | 231 | rq->cmd_flags |= REQ_PREEMPT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | |
| 233 | /* NOTE! Save the failed command in "rq->buffer" */ |
| 234 | rq->buffer = (void *) failed_command; |
| 235 | |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 236 | if (failed_command) |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 237 | ide_debug_log(IDE_DBG_SENSE, "failed_cmd: 0x%x", |
| 238 | failed_command->cmd[0]); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 239 | |
Bartlomiej Zolnierkiewicz | 1866082 | 2009-03-24 23:22:44 +0100 | [diff] [blame] | 240 | drive->hwif->rq = NULL; |
| 241 | |
| 242 | elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | } |
| 244 | |
Bartlomiej Zolnierkiewicz | 299c485 | 2009-03-31 20:15:01 +0200 | [diff] [blame] | 245 | static void ide_cd_complete_failed_rq(ide_drive_t *drive, struct request *rq) |
| 246 | { |
| 247 | /* |
| 248 | * For REQ_TYPE_SENSE, "rq->buffer" points to the original |
| 249 | * failed request |
| 250 | */ |
| 251 | struct request *failed = (struct request *)rq->buffer; |
| 252 | struct cdrom_info *info = drive->driver_data; |
| 253 | void *sense = &info->sense_data; |
| 254 | |
| 255 | if (failed) { |
| 256 | if (failed->sense) { |
| 257 | sense = failed->sense; |
| 258 | failed->sense_len = rq->sense_len; |
| 259 | } |
| 260 | cdrom_analyze_sense_data(drive, failed, sense); |
| 261 | |
| 262 | if (ide_end_rq(drive, failed, -EIO, blk_rq_bytes(failed))) |
| 263 | BUG(); |
| 264 | } else |
| 265 | cdrom_analyze_sense_data(drive, NULL, sense); |
| 266 | } |
| 267 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 268 | /* |
| 269 | * Returns: |
| 270 | * 0: if the request should be continued. |
Bartlomiej Zolnierkiewicz | 8a11697 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 271 | * 1: if the request will be going through error recovery. |
| 272 | * 2: if the request should be ended. |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 273 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret) |
| 275 | { |
Bartlomiej Zolnierkiewicz | b73c7ee | 2008-07-23 19:55:52 +0200 | [diff] [blame] | 276 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | b65fac3 | 2009-01-06 17:20:50 +0100 | [diff] [blame] | 277 | struct request *rq = hwif->rq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | int stat, err, sense_key; |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 279 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 280 | /* check for errors */ |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 281 | stat = hwif->tp_ops->read_status(hwif); |
Bartlomiej Zolnierkiewicz | c47137a | 2008-02-06 02:57:51 +0100 | [diff] [blame] | 282 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | if (stat_ret) |
| 284 | *stat_ret = stat; |
| 285 | |
| 286 | if (OK_STAT(stat, good_stat, BAD_R_STAT)) |
| 287 | return 0; |
| 288 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 289 | /* get the IDE error register */ |
Bartlomiej Zolnierkiewicz | 64a57fe | 2008-02-06 02:57:51 +0100 | [diff] [blame] | 290 | err = ide_read_error(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | sense_key = err >> 4; |
| 292 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 293 | ide_debug_log(IDE_DBG_RQ, "stat: 0x%x, good_stat: 0x%x, cmd[0]: 0x%x, " |
| 294 | "rq->cmd_type: 0x%x, err: 0x%x", |
| 295 | stat, good_stat, rq->cmd[0], rq->cmd_type, |
| 296 | err); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 297 | |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 298 | if (blk_sense_request(rq)) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 299 | /* |
| 300 | * We got an error trying to get sense info from the drive |
| 301 | * (probably while trying to recover from a former error). |
| 302 | * Just give up. |
| 303 | */ |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 304 | rq->cmd_flags |= REQ_FAILED; |
Bartlomiej Zolnierkiewicz | 8a11697 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 305 | return 2; |
Jens Axboe | 8770c01 | 2006-10-12 17:24:52 +0200 | [diff] [blame] | 306 | } else if (blk_pc_request(rq) || rq->cmd_type == REQ_TYPE_ATA_PC) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | /* All other functions, except for READ. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | |
| 309 | /* |
| 310 | * if we have an error, pass back CHECK_CONDITION as the |
| 311 | * scsi status byte |
| 312 | */ |
Jens Axboe | b715673 | 2006-11-13 18:05:02 +0100 | [diff] [blame] | 313 | if (blk_pc_request(rq) && !rq->errors) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | rq->errors = SAM_STAT_CHECK_CONDITION; |
| 315 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 316 | /* check for tray open */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | if (sense_key == NOT_READY) { |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 318 | cdrom_saw_media_change(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | } else if (sense_key == UNIT_ATTENTION) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 320 | /* check for media change */ |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 321 | cdrom_saw_media_change(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | return 0; |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 323 | } else if (sense_key == ILLEGAL_REQUEST && |
| 324 | rq->cmd[0] == GPCMD_START_STOP_UNIT) { |
| 325 | /* |
| 326 | * Don't print error message for this condition-- |
| 327 | * SFF8090i indicates that 5/24/00 is the correct |
| 328 | * response to a request to close the tray if the |
| 329 | * drive doesn't have that capability. |
| 330 | * cdrom_log_sense() knows this! |
| 331 | */ |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 332 | } else if (!(rq->cmd_flags & REQ_QUIET)) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 333 | /* otherwise, print an error */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | ide_dump_status(drive, "packet command error", stat); |
| 335 | } |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 336 | |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 337 | rq->cmd_flags |= REQ_FAILED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | |
| 339 | /* |
| 340 | * instead of playing games with moving completions around, |
| 341 | * remove failed request completely and end it when the |
| 342 | * request sense has completed |
| 343 | */ |
Bartlomiej Zolnierkiewicz | bbb89e3 | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 344 | goto end_request; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | |
| 346 | } else if (blk_fs_request(rq)) { |
| 347 | int do_end_request = 0; |
| 348 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 349 | /* handle errors from READ and WRITE requests */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | |
| 351 | if (blk_noretry_request(rq)) |
| 352 | do_end_request = 1; |
| 353 | |
| 354 | if (sense_key == NOT_READY) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 355 | /* tray open */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | if (rq_data_dir(rq) == READ) { |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 357 | cdrom_saw_media_change(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 359 | /* fail the request */ |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 360 | printk(KERN_ERR PFX "%s: tray open\n", |
| 361 | drive->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | do_end_request = 1; |
| 363 | } else { |
| 364 | struct cdrom_info *info = drive->driver_data; |
| 365 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 366 | /* |
| 367 | * Allow the drive 5 seconds to recover, some |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | * devices will return this error while flushing |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 369 | * data from cache. |
| 370 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | if (!rq->errors) |
Borislav Petkov | 83c8565 | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 372 | info->write_timeout = jiffies + |
| 373 | ATAPI_WAIT_WRITE_BUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | rq->errors = 1; |
| 375 | if (time_after(jiffies, info->write_timeout)) |
| 376 | do_end_request = 1; |
| 377 | else { |
Bartlomiej Zolnierkiewicz | 6ea5222 | 2008-12-29 20:27:31 +0100 | [diff] [blame] | 378 | struct request_queue *q = drive->queue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | unsigned long flags; |
| 380 | |
| 381 | /* |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 382 | * take a breather relying on the unplug |
| 383 | * timer to kick us again |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | */ |
Bartlomiej Zolnierkiewicz | 6ea5222 | 2008-12-29 20:27:31 +0100 | [diff] [blame] | 385 | spin_lock_irqsave(q->queue_lock, flags); |
| 386 | blk_plug_device(q); |
| 387 | spin_unlock_irqrestore(q->queue_lock, flags); |
| 388 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | return 1; |
| 390 | } |
| 391 | } |
| 392 | } else if (sense_key == UNIT_ATTENTION) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 393 | /* media change */ |
Borislav Petkov | e5e076a | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 394 | cdrom_saw_media_change(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 396 | /* |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 397 | * Arrange to retry the request but be sure to give up |
| 398 | * if we've retried too many times. |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 399 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | if (++rq->errors > ERROR_MAX) |
| 401 | do_end_request = 1; |
| 402 | } else if (sense_key == ILLEGAL_REQUEST || |
| 403 | sense_key == DATA_PROTECT) { |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 404 | /* |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 405 | * No point in retrying after an illegal request or data |
| 406 | * protect error. |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 407 | */ |
Bartlomiej Zolnierkiewicz | 1ab6d74 | 2009-03-31 20:15:00 +0200 | [diff] [blame] | 408 | ide_dump_status(drive, "command error", stat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | do_end_request = 1; |
| 410 | } else if (sense_key == MEDIUM_ERROR) { |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 411 | /* |
| 412 | * No point in re-trying a zillion times on a bad |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 413 | * sector. If we got here the error is not correctable. |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 414 | */ |
Bartlomiej Zolnierkiewicz | 1ab6d74 | 2009-03-31 20:15:00 +0200 | [diff] [blame] | 415 | ide_dump_status(drive, "media error (bad sector)", |
| 416 | stat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | do_end_request = 1; |
| 418 | } else if (sense_key == BLANK_CHECK) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 419 | /* disk appears blank ?? */ |
Bartlomiej Zolnierkiewicz | 1ab6d74 | 2009-03-31 20:15:00 +0200 | [diff] [blame] | 420 | ide_dump_status(drive, "media error (blank)", stat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | do_end_request = 1; |
Bartlomiej Zolnierkiewicz | 3a7d248 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 422 | } else if ((err & ~ATA_ABORTED) != 0) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 423 | /* go to the default handler for other errors */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | ide_error(drive, "cdrom_decode_status", stat); |
| 425 | return 1; |
| 426 | } else if ((++rq->errors > ERROR_MAX)) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 427 | /* we've racked up too many retries, abort */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | do_end_request = 1; |
| 429 | } |
| 430 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 431 | /* |
| 432 | * End a request through request sense analysis when we have |
| 433 | * sense data. We need this in order to perform end of media |
| 434 | * processing. |
| 435 | */ |
Bartlomiej Zolnierkiewicz | bbb89e3 | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 436 | if (do_end_request) |
| 437 | goto end_request; |
Alan Cox | dbe217a | 2006-06-25 05:47:44 -0700 | [diff] [blame] | 438 | |
Bartlomiej Zolnierkiewicz | bbb89e3 | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 439 | /* |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 440 | * If we got a CHECK_CONDITION status, queue |
| 441 | * a request sense command. |
Bartlomiej Zolnierkiewicz | bbb89e3 | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 442 | */ |
Bartlomiej Zolnierkiewicz | 3a7d248 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 443 | if (stat & ATA_ERR) |
Bartlomiej Zolnierkiewicz | bbb89e3 | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 444 | cdrom_queue_request_sense(drive, NULL, NULL); |
Bartlomiej Zolnierkiewicz | 8a11697 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 445 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | } else { |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 447 | blk_dump_rq_flags(rq, PFX "bad rq"); |
Bartlomiej Zolnierkiewicz | 8a11697 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 448 | return 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | } |
| 450 | |
Bartlomiej Zolnierkiewicz | bbb89e3 | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 451 | end_request: |
Bartlomiej Zolnierkiewicz | 3a7d248 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 452 | if (stat & ATA_ERR) { |
Bartlomiej Zolnierkiewicz | 6ea5222 | 2008-12-29 20:27:31 +0100 | [diff] [blame] | 453 | struct request_queue *q = drive->queue; |
Bartlomiej Zolnierkiewicz | bbb89e3 | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 454 | unsigned long flags; |
| 455 | |
Bartlomiej Zolnierkiewicz | 6ea5222 | 2008-12-29 20:27:31 +0100 | [diff] [blame] | 456 | spin_lock_irqsave(q->queue_lock, flags); |
Bartlomiej Zolnierkiewicz | bbb89e3 | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 457 | blkdev_dequeue_request(rq); |
Bartlomiej Zolnierkiewicz | 6ea5222 | 2008-12-29 20:27:31 +0100 | [diff] [blame] | 458 | spin_unlock_irqrestore(q->queue_lock, flags); |
Bartlomiej Zolnierkiewicz | bbb89e3 | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 459 | |
Bartlomiej Zolnierkiewicz | b65fac3 | 2009-01-06 17:20:50 +0100 | [diff] [blame] | 460 | hwif->rq = NULL; |
Bartlomiej Zolnierkiewicz | 1d0bf58 | 2008-12-29 20:27:30 +0100 | [diff] [blame] | 461 | |
Bartlomiej Zolnierkiewicz | bbb89e3 | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 462 | cdrom_queue_request_sense(drive, rq->sense, rq); |
Bartlomiej Zolnierkiewicz | 8a11697 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 463 | return 1; |
Bartlomiej Zolnierkiewicz | bbb89e3 | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 464 | } else |
Bartlomiej Zolnierkiewicz | 8a11697 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 465 | return 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | } |
| 467 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 468 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | * Check the contents of the interrupt reason register from the cdrom |
| 470 | * and attempt to recover if there are problems. Returns 0 if everything's |
| 471 | * ok; nonzero if the request has been terminated. |
| 472 | */ |
Bartlomiej Zolnierkiewicz | 9f10d9e | 2008-02-26 21:50:35 +0100 | [diff] [blame] | 473 | static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq, |
| 474 | int len, int ireason, int rw) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | { |
Bartlomiej Zolnierkiewicz | b73c7ee | 2008-07-23 19:55:52 +0200 | [diff] [blame] | 476 | ide_hwif_t *hwif = drive->hwif; |
| 477 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 478 | ide_debug_log(IDE_DBG_FUNC, "ireason: 0x%x, rw: 0x%x", ireason, rw); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 479 | |
Bartlomiej Zolnierkiewicz | 0d6f7e3 | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 480 | /* |
| 481 | * ireason == 0: the drive wants to receive data from us |
| 482 | * ireason == 2: the drive is expecting to transfer data to us |
| 483 | */ |
| 484 | if (ireason == (!rw << 1)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | return 0; |
Bartlomiej Zolnierkiewicz | 0d6f7e3 | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 486 | else if (ireason == (rw << 1)) { |
Bartlomiej Zolnierkiewicz | 5a5222d | 2008-02-01 23:09:17 +0100 | [diff] [blame] | 487 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 488 | /* whoops... */ |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 489 | printk(KERN_ERR PFX "%s: %s: wrong transfer direction!\n", |
Paolo Ciarrocchi | 177773e | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 490 | drive->name, __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | |
Borislav Petkov | ae8789f | 2008-07-16 20:33:45 +0200 | [diff] [blame] | 492 | ide_pad_transfer(drive, rw, len); |
Bartlomiej Zolnierkiewicz | 0d6f7e3 | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 493 | } else if (rw == 0 && ireason == 1) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 494 | /* |
| 495 | * Some drives (ASUS) seem to tell us that status info is |
| 496 | * available. Just get it and ignore. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | */ |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 498 | (void)hwif->tp_ops->read_status(hwif); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | return 0; |
| 500 | } else { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 501 | /* drive wants a command packet, or invalid ireason... */ |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 502 | printk(KERN_ERR PFX "%s: %s: bad interrupt reason 0x%02x\n", |
Paolo Ciarrocchi | 177773e | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 503 | drive->name, __func__, ireason); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | } |
| 505 | |
Bartlomiej Zolnierkiewicz | 9f10d9e | 2008-02-26 21:50:35 +0100 | [diff] [blame] | 506 | if (rq->cmd_type == REQ_TYPE_ATA_PC) |
| 507 | rq->cmd_flags |= REQ_FAILED; |
| 508 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | return -1; |
| 510 | } |
| 511 | |
Bartlomiej Zolnierkiewicz | c7ec899 | 2009-03-31 20:15:15 +0200 | [diff] [blame] | 512 | static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct ide_cmd *cmd) |
Bartlomiej Zolnierkiewicz | 8ee69f5 | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 513 | { |
Bartlomiej Zolnierkiewicz | c7ec899 | 2009-03-31 20:15:15 +0200 | [diff] [blame] | 514 | struct request *rq = cmd->rq; |
| 515 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 516 | ide_debug_log(IDE_DBG_FUNC, "rq->cmd[0]: 0x%x", rq->cmd[0]); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 517 | |
Bartlomiej Zolnierkiewicz | 8ee69f5 | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 518 | /* |
| 519 | * Some of the trailing request sense fields are optional, |
| 520 | * and some drives don't send them. Sigh. |
| 521 | */ |
| 522 | if (rq->cmd[0] == GPCMD_REQUEST_SENSE && |
Bartlomiej Zolnierkiewicz | c7ec899 | 2009-03-31 20:15:15 +0200 | [diff] [blame] | 523 | cmd->nleft > 0 && cmd->nleft <= 5) { |
| 524 | unsigned int ofs = cmd->nbytes - cmd->nleft; |
| 525 | |
| 526 | while (cmd->nleft > 0) { |
| 527 | *((u8 *)rq->data + ofs++) = 0; |
| 528 | cmd->nleft--; |
Bartlomiej Zolnierkiewicz | 8ee69f5 | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 529 | } |
Bartlomiej Zolnierkiewicz | c7ec899 | 2009-03-31 20:15:15 +0200 | [diff] [blame] | 530 | } |
Bartlomiej Zolnierkiewicz | 8ee69f5 | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 531 | } |
| 532 | |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 533 | int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, |
| 534 | int write, void *buffer, unsigned *bufflen, |
| 535 | struct request_sense *sense, int timeout, |
| 536 | unsigned int cmd_flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | { |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 538 | struct cdrom_info *info = drive->driver_data; |
| 539 | struct request_sense local_sense; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 540 | int retries = 10; |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 541 | unsigned int flags = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 542 | |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 543 | if (!sense) |
| 544 | sense = &local_sense; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 546 | ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x, timeout: %d, " |
| 547 | "cmd_flags: 0x%x", |
| 548 | cmd[0], write, timeout, cmd_flags); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 549 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 550 | /* start of retry loop */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | do { |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 552 | struct request *rq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | int error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 555 | rq = blk_get_request(drive->queue, write, __GFP_WAIT); |
| 556 | |
| 557 | memcpy(rq->cmd, cmd, BLK_MAX_CDB); |
| 558 | rq->cmd_type = REQ_TYPE_ATA_PC; |
| 559 | rq->sense = sense; |
| 560 | rq->cmd_flags |= cmd_flags; |
| 561 | rq->timeout = timeout; |
| 562 | if (buffer) { |
| 563 | rq->data = buffer; |
| 564 | rq->data_len = *bufflen; |
| 565 | } |
| 566 | |
| 567 | error = blk_execute_rq(drive->queue, info->disk, rq, 0); |
| 568 | |
| 569 | if (buffer) |
| 570 | *bufflen = rq->data_len; |
| 571 | |
| 572 | flags = rq->cmd_flags; |
| 573 | blk_put_request(rq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 575 | /* |
| 576 | * FIXME: we should probably abort/retry or something in case of |
| 577 | * failure. |
| 578 | */ |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 579 | if (flags & REQ_FAILED) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 580 | /* |
| 581 | * The request failed. Retry if it was due to a unit |
| 582 | * attention status (usually means media was changed). |
| 583 | */ |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 584 | struct request_sense *reqbuf = sense; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | |
| 586 | if (reqbuf->sense_key == UNIT_ATTENTION) |
| 587 | cdrom_saw_media_change(drive); |
| 588 | else if (reqbuf->sense_key == NOT_READY && |
| 589 | reqbuf->asc == 4 && reqbuf->ascq != 4) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 590 | /* |
| 591 | * The drive is in the process of loading |
| 592 | * a disk. Retry, but wait a little to give |
| 593 | * the drive time to complete the load. |
| 594 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | ssleep(2); |
| 596 | } else { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 597 | /* otherwise, don't retry */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | retries = 0; |
| 599 | } |
| 600 | --retries; |
| 601 | } |
| 602 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 603 | /* end of retry loop */ |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 604 | } while ((flags & REQ_FAILED) && retries >= 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 605 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 606 | /* return an error if the command failed */ |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 607 | return (flags & REQ_FAILED) ? -EIO : 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | } |
| 609 | |
Bartlomiej Zolnierkiewicz | a08915b | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 610 | static void ide_cd_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd) |
| 611 | { |
| 612 | unsigned int nr_bytes = cmd->nbytes - cmd->nleft; |
| 613 | |
| 614 | if (cmd->tf_flags & IDE_TFLAG_WRITE) |
| 615 | nr_bytes -= cmd->last_xfer_len; |
| 616 | |
| 617 | if (nr_bytes > 0) |
| 618 | ide_complete_rq(drive, 0, nr_bytes); |
| 619 | } |
| 620 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) |
| 622 | { |
Bartlomiej Zolnierkiewicz | 23579a2 | 2008-04-18 00:46:26 +0200 | [diff] [blame] | 623 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | a08915b | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 624 | struct ide_cmd *cmd = &hwif->cmd; |
Bartlomiej Zolnierkiewicz | b65fac3 | 2009-01-06 17:20:50 +0100 | [diff] [blame] | 625 | struct request *rq = hwif->rq; |
Bartlomiej Zolnierkiewicz | 0041e7c | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 626 | ide_expiry_t *expiry = NULL; |
Bartlomiej Zolnierkiewicz | 1823649 | 2008-07-23 19:55:54 +0200 | [diff] [blame] | 627 | int dma_error = 0, dma, stat, thislen, uptodate = 0; |
Bartlomiej Zolnierkiewicz | f63174e | 2009-03-31 20:15:04 +0200 | [diff] [blame] | 628 | int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc, nsectors; |
Bartlomiej Zolnierkiewicz | 8a11697 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 629 | int sense = blk_sense_request(rq); |
Bartlomiej Zolnierkiewicz | ff1bfbc | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 630 | unsigned int timeout; |
Bartlomiej Zolnierkiewicz | 1823649 | 2008-07-23 19:55:54 +0200 | [diff] [blame] | 631 | u16 len; |
| 632 | u8 ireason; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 634 | ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x", |
| 635 | rq->cmd[0], write); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 636 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 637 | /* check for errors */ |
Borislav Petkov | 12469ac | 2008-10-13 21:39:49 +0200 | [diff] [blame] | 638 | dma = drive->dma; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | if (dma) { |
Borislav Petkov | 12469ac | 2008-10-13 21:39:49 +0200 | [diff] [blame] | 640 | drive->dma = 0; |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 641 | dma_error = hwif->dma_ops->dma_end(drive); |
Bartlomiej Zolnierkiewicz | eba15fb | 2008-02-01 23:09:17 +0100 | [diff] [blame] | 642 | if (dma_error) { |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 643 | printk(KERN_ERR PFX "%s: DMA %s error\n", drive->name, |
Bartlomiej Zolnierkiewicz | ff1bfbc | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 644 | write ? "write" : "read"); |
Bartlomiej Zolnierkiewicz | eba15fb | 2008-02-01 23:09:17 +0100 | [diff] [blame] | 645 | ide_dma_off(drive); |
| 646 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | } |
| 648 | |
Bartlomiej Zolnierkiewicz | 8a11697 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 649 | rc = cdrom_decode_status(drive, 0, &stat); |
| 650 | if (rc) { |
| 651 | if (rc == 2) |
| 652 | goto out_end; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | return ide_stopped; |
Bartlomiej Zolnierkiewicz | 8a11697 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 654 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 656 | /* using dma, transfer is complete now */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | if (dma) { |
Bartlomiej Zolnierkiewicz | eba15fb | 2008-02-01 23:09:17 +0100 | [diff] [blame] | 658 | if (dma_error) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | return ide_error(drive, "dma error", stat); |
Bartlomiej Zolnierkiewicz | 4a3d8cf | 2009-03-31 20:15:15 +0200 | [diff] [blame^] | 660 | uptodate = 1; |
Bartlomiej Zolnierkiewicz | 984c5e5 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 661 | goto out_end; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 662 | } |
| 663 | |
Bartlomiej Zolnierkiewicz | 1823649 | 2008-07-23 19:55:54 +0200 | [diff] [blame] | 664 | ide_read_bcount_and_ireason(drive, &len, &ireason); |
Bartlomiej Zolnierkiewicz | 0041e7c | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 665 | |
Bartlomiej Zolnierkiewicz | c7ec899 | 2009-03-31 20:15:15 +0200 | [diff] [blame] | 666 | thislen = blk_fs_request(rq) ? len : cmd->nleft; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | if (thislen > len) |
| 668 | thislen = len; |
| 669 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 670 | ide_debug_log(IDE_DBG_PC, "DRQ: stat: 0x%x, thislen: %d", |
| 671 | stat, thislen); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 672 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 673 | /* If DRQ is clear, the command has completed. */ |
Bartlomiej Zolnierkiewicz | 3a7d248 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 674 | if ((stat & ATA_DRQ) == 0) { |
Bartlomiej Zolnierkiewicz | 0041e7c | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 675 | if (blk_fs_request(rq)) { |
| 676 | /* |
| 677 | * If we're not done reading/writing, complain. |
| 678 | * Otherwise, complete the command normally. |
| 679 | */ |
| 680 | uptodate = 1; |
Bartlomiej Zolnierkiewicz | a08915b | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 681 | if (cmd->nleft > 0) { |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 682 | printk(KERN_ERR PFX "%s: %s: data underrun " |
Bartlomiej Zolnierkiewicz | a08915b | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 683 | "(%u bytes)\n", drive->name, __func__, |
| 684 | cmd->nleft); |
Bartlomiej Zolnierkiewicz | 0041e7c | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 685 | if (!write) |
| 686 | rq->cmd_flags |= REQ_FAILED; |
| 687 | uptodate = 0; |
| 688 | } |
Bartlomiej Zolnierkiewicz | 0041e7c | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 689 | } else if (!blk_pc_request(rq)) { |
Bartlomiej Zolnierkiewicz | c7ec899 | 2009-03-31 20:15:15 +0200 | [diff] [blame] | 690 | ide_cd_request_sense_fixup(drive, cmd); |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 691 | /* complain if we still have data left to transfer */ |
Bartlomiej Zolnierkiewicz | c7ec899 | 2009-03-31 20:15:15 +0200 | [diff] [blame] | 692 | uptodate = cmd->nleft ? 0 : 1; |
Bartlomiej Zolnierkiewicz | 984c5e5 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 693 | if (uptodate == 0) |
| 694 | rq->cmd_flags |= REQ_FAILED; |
Bartlomiej Zolnierkiewicz | ff1bfbc | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 695 | } |
Bartlomiej Zolnierkiewicz | 984c5e5 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 696 | goto out_end; |
Kiyoshi Ueda | aaa04c2 | 2007-12-11 17:51:23 -0500 | [diff] [blame] | 697 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 699 | /* check which way to transfer data */ |
Bartlomiej Zolnierkiewicz | 8a11697 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 700 | rc = ide_cd_check_ireason(drive, rq, len, ireason, write); |
| 701 | if (rc) |
| 702 | goto out_end; |
Bartlomiej Zolnierkiewicz | 0041e7c | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 703 | |
Bartlomiej Zolnierkiewicz | 06a449e | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 704 | cmd->last_xfer_len = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 706 | ide_debug_log(IDE_DBG_PC, "data transfer, rq->cmd_type: 0x%x, " |
| 707 | "ireason: 0x%x", |
| 708 | rq->cmd_type, ireason); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 709 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 710 | /* transfer data */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | while (thislen > 0) { |
Bartlomiej Zolnierkiewicz | c7ec899 | 2009-03-31 20:15:15 +0200 | [diff] [blame] | 712 | int blen = min_t(int, thislen, cmd->nleft); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 713 | |
Bartlomiej Zolnierkiewicz | c7ec899 | 2009-03-31 20:15:15 +0200 | [diff] [blame] | 714 | if (cmd->nleft == 0) { |
Bartlomiej Zolnierkiewicz | 0041e7c | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 715 | if (blk_fs_request(rq) && !write) |
| 716 | /* |
Borislav Petkov | 968c496 | 2008-04-26 17:36:37 +0200 | [diff] [blame] | 717 | * If the buffers are full, pipe the rest into |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 718 | * oblivion. |
| 719 | */ |
Borislav Petkov | ae8789f | 2008-07-16 20:33:45 +0200 | [diff] [blame] | 720 | ide_pad_transfer(drive, 0, thislen); |
Bartlomiej Zolnierkiewicz | 0041e7c | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 721 | else { |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 722 | printk(KERN_ERR PFX "%s: confused, missing data\n", |
Bartlomiej Zolnierkiewicz | 0041e7c | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 723 | drive->name); |
| 724 | blk_dump_rq_flags(rq, rq_data_dir(rq) |
| 725 | ? "cdrom_newpc_intr, write" |
| 726 | : "cdrom_newpc_intr, read"); |
| 727 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 728 | break; |
| 729 | } |
| 730 | |
Bartlomiej Zolnierkiewicz | c7ec899 | 2009-03-31 20:15:15 +0200 | [diff] [blame] | 731 | ide_pio_bytes(drive, cmd, write, blen); |
| 732 | cmd->last_xfer_len += blen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 733 | |
| 734 | thislen -= blen; |
| 735 | len -= blen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 736 | |
Bartlomiej Zolnierkiewicz | 8a11697 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 737 | if (sense && write == 0) |
Andreas Schwab | bcd88ac | 2008-02-26 21:50:35 +0100 | [diff] [blame] | 738 | rq->sense_len += blen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 739 | } |
| 740 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 741 | /* pad, if necessary */ |
Bartlomiej Zolnierkiewicz | 0041e7c | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 742 | if (!blk_fs_request(rq) && len > 0) |
Borislav Petkov | ae8789f | 2008-07-16 20:33:45 +0200 | [diff] [blame] | 743 | ide_pad_transfer(drive, write, len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | |
Bartlomiej Zolnierkiewicz | ff1bfbc | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 745 | if (blk_pc_request(rq)) { |
| 746 | timeout = rq->timeout; |
Bartlomiej Zolnierkiewicz | ff1bfbc | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 747 | } else { |
| 748 | timeout = ATAPI_WAIT_PC; |
Bartlomiej Zolnierkiewicz | 0041e7c | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 749 | if (!blk_fs_request(rq)) |
Borislav Petkov | 4cad085 | 2009-01-02 16:12:53 +0100 | [diff] [blame] | 750 | expiry = ide_cd_expiry; |
Bartlomiej Zolnierkiewicz | ff1bfbc | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 751 | } |
| 752 | |
Bartlomiej Zolnierkiewicz | 60c0cd0 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 753 | hwif->expiry = expiry; |
| 754 | ide_set_handler(drive, cdrom_newpc_intr, timeout); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 755 | return ide_started; |
Bartlomiej Zolnierkiewicz | ff1bfbc | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 756 | |
Bartlomiej Zolnierkiewicz | 984c5e5 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 757 | out_end: |
Bartlomiej Zolnierkiewicz | 8a11697 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 758 | if (blk_pc_request(rq) && rc == 0) { |
Kiyoshi Ueda | 14e04c3 | 2008-02-19 01:41:26 +0100 | [diff] [blame] | 759 | unsigned int dlen = rq->data_len; |
| 760 | |
Bartlomiej Zolnierkiewicz | c7ec899 | 2009-03-31 20:15:15 +0200 | [diff] [blame] | 761 | rq->data_len = 0; |
Bartlomiej Zolnierkiewicz | ff1bfbc | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 762 | |
Bartlomiej Zolnierkiewicz | 3c8a2cc | 2008-12-29 20:27:31 +0100 | [diff] [blame] | 763 | if (blk_end_request(rq, 0, dlen)) |
Bartlomiej Zolnierkiewicz | ff1bfbc | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 764 | BUG(); |
Bartlomiej Zolnierkiewicz | 1d0bf58 | 2008-12-29 20:27:30 +0100 | [diff] [blame] | 765 | |
Bartlomiej Zolnierkiewicz | b65fac3 | 2009-01-06 17:20:50 +0100 | [diff] [blame] | 766 | hwif->rq = NULL; |
Bartlomiej Zolnierkiewicz | ff1bfbc | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 767 | } else { |
Bartlomiej Zolnierkiewicz | f63174e | 2009-03-31 20:15:04 +0200 | [diff] [blame] | 768 | if (sense && uptodate) |
| 769 | ide_cd_complete_failed_rq(drive, rq); |
| 770 | |
| 771 | if (blk_fs_request(rq)) { |
Bartlomiej Zolnierkiewicz | a08915b | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 772 | if (cmd->nleft == 0) |
Bartlomiej Zolnierkiewicz | f63174e | 2009-03-31 20:15:04 +0200 | [diff] [blame] | 773 | uptodate = 1; |
| 774 | } else { |
| 775 | if (uptodate <= 0 && rq->errors == 0) |
| 776 | rq->errors = -EIO; |
| 777 | } |
| 778 | |
Bartlomiej Zolnierkiewicz | c7ec899 | 2009-03-31 20:15:15 +0200 | [diff] [blame] | 779 | if (uptodate == 0) |
| 780 | ide_cd_error_cmd(drive, cmd); |
| 781 | |
Bartlomiej Zolnierkiewicz | f63174e | 2009-03-31 20:15:04 +0200 | [diff] [blame] | 782 | /* make sure it's fully ended */ |
| 783 | if (blk_pc_request(rq)) |
| 784 | nsectors = (rq->data_len + 511) >> 9; |
| 785 | else |
Bartlomiej Zolnierkiewicz | a08915b | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 786 | nsectors = rq->hard_nr_sectors; |
Bartlomiej Zolnierkiewicz | f63174e | 2009-03-31 20:15:04 +0200 | [diff] [blame] | 787 | |
| 788 | if (nsectors == 0) |
| 789 | nsectors = 1; |
| 790 | |
Bartlomiej Zolnierkiewicz | c7ec899 | 2009-03-31 20:15:15 +0200 | [diff] [blame] | 791 | if (blk_fs_request(rq) == 0) { |
| 792 | rq->data_len -= (cmd->nbytes - cmd->nleft); |
| 793 | if (uptodate == 0 && (cmd->tf_flags & IDE_TFLAG_WRITE)) |
| 794 | rq->data_len += cmd->last_xfer_len; |
| 795 | } |
| 796 | |
Bartlomiej Zolnierkiewicz | f63174e | 2009-03-31 20:15:04 +0200 | [diff] [blame] | 797 | ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9); |
| 798 | |
Bartlomiej Zolnierkiewicz | 8a11697 | 2009-03-31 20:15:03 +0200 | [diff] [blame] | 799 | if (sense && rc == 2) |
| 800 | ide_error(drive, "request sense failure", stat); |
Bartlomiej Zolnierkiewicz | ff1bfbc | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 801 | } |
| 802 | return ide_stopped; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | } |
| 804 | |
Bartlomiej Zolnierkiewicz | 21ea1f0 | 2008-02-01 23:09:27 +0100 | [diff] [blame] | 805 | static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 806 | { |
Bartlomiej Zolnierkiewicz | 21ea1f0 | 2008-02-01 23:09:27 +0100 | [diff] [blame] | 807 | struct cdrom_info *cd = drive->driver_data; |
Bartlomiej Zolnierkiewicz | a08915b | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 808 | struct request_queue *q = drive->queue; |
Bartlomiej Zolnierkiewicz | 21ea1f0 | 2008-02-01 23:09:27 +0100 | [diff] [blame] | 809 | int write = rq_data_dir(rq) == WRITE; |
| 810 | unsigned short sectors_per_frame = |
Bartlomiej Zolnierkiewicz | a08915b | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 811 | queue_hardsect_size(q) >> SECTOR_BITS; |
Bartlomiej Zolnierkiewicz | 21ea1f0 | 2008-02-01 23:09:27 +0100 | [diff] [blame] | 812 | |
Bartlomiej Zolnierkiewicz | 8652b31 | 2009-03-31 20:15:14 +0200 | [diff] [blame] | 813 | ide_debug_log(IDE_DBG_RQ, "rq->cmd[0]: 0x%x, rq->cmd_flags: 0x%x, " |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 814 | "secs_per_frame: %u", |
Bartlomiej Zolnierkiewicz | 8652b31 | 2009-03-31 20:15:14 +0200 | [diff] [blame] | 815 | rq->cmd[0], rq->cmd_flags, sectors_per_frame); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 816 | |
Bartlomiej Zolnierkiewicz | 21ea1f0 | 2008-02-01 23:09:27 +0100 | [diff] [blame] | 817 | if (write) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 818 | /* disk has become write protected */ |
Bartlomiej Zolnierkiewicz | e0458cc | 2009-03-31 20:15:02 +0200 | [diff] [blame] | 819 | if (get_disk_ro(cd->disk)) |
Bartlomiej Zolnierkiewicz | 21ea1f0 | 2008-02-01 23:09:27 +0100 | [diff] [blame] | 820 | return ide_stopped; |
Bartlomiej Zolnierkiewicz | 21ea1f0 | 2008-02-01 23:09:27 +0100 | [diff] [blame] | 821 | } else { |
| 822 | /* |
| 823 | * We may be retrying this request after an error. Fix up any |
| 824 | * weirdness which might be present in the request packet. |
| 825 | */ |
Bartlomiej Zolnierkiewicz | a08915b | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 826 | q->prep_rq_fn(q, rq); |
Bartlomiej Zolnierkiewicz | 21ea1f0 | 2008-02-01 23:09:27 +0100 | [diff] [blame] | 827 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | |
Bartlomiej Zolnierkiewicz | a08915b | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 829 | /* fs requests *must* be hardware frame aligned */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | if ((rq->nr_sectors & (sectors_per_frame - 1)) || |
Bartlomiej Zolnierkiewicz | a08915b | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 831 | (rq->sector & (sectors_per_frame - 1))) |
| 832 | return ide_stopped; |
| 833 | |
| 834 | /* use DMA, if possible */ |
| 835 | drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 836 | |
Bartlomiej Zolnierkiewicz | 21ea1f0 | 2008-02-01 23:09:27 +0100 | [diff] [blame] | 837 | if (write) |
| 838 | cd->devinfo.media_written = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 839 | |
Bartlomiej Zolnierkiewicz | 8652b31 | 2009-03-31 20:15:14 +0200 | [diff] [blame] | 840 | rq->timeout = ATAPI_WAIT_PC; |
| 841 | |
Borislav Petkov | b6ca440 | 2008-07-16 20:33:46 +0200 | [diff] [blame] | 842 | return ide_started; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | } |
| 844 | |
Borislav Petkov | b6ca440 | 2008-07-16 20:33:46 +0200 | [diff] [blame] | 845 | static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 847 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 848 | ide_debug_log(IDE_DBG_PC, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x", |
| 849 | rq->cmd[0], rq->cmd_type); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 850 | |
Bartlomiej Zolnierkiewicz | c9f56a8 | 2008-02-01 23:09:26 +0100 | [diff] [blame] | 851 | if (blk_pc_request(rq)) |
| 852 | rq->cmd_flags |= REQ_QUIET; |
| 853 | else |
| 854 | rq->cmd_flags &= ~REQ_FAILED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | |
Borislav Petkov | 12469ac | 2008-10-13 21:39:49 +0200 | [diff] [blame] | 856 | drive->dma = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 858 | /* sg request */ |
FUJITA Tomonori | e5318b5 | 2008-07-16 20:33:35 +0200 | [diff] [blame] | 859 | if (rq->bio || ((rq->cmd_type == REQ_TYPE_ATA_PC) && rq->data_len)) { |
| 860 | struct request_queue *q = drive->queue; |
| 861 | unsigned int alignment; |
FUJITA Tomonori | efa402d | 2008-10-10 22:39:22 +0200 | [diff] [blame] | 862 | char *buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | |
FUJITA Tomonori | e5318b5 | 2008-07-16 20:33:35 +0200 | [diff] [blame] | 864 | if (rq->bio) |
FUJITA Tomonori | efa402d | 2008-10-10 22:39:22 +0200 | [diff] [blame] | 865 | buf = bio_data(rq->bio); |
FUJITA Tomonori | e5318b5 | 2008-07-16 20:33:35 +0200 | [diff] [blame] | 866 | else |
FUJITA Tomonori | efa402d | 2008-10-10 22:39:22 +0200 | [diff] [blame] | 867 | buf = rq->data; |
FUJITA Tomonori | e5318b5 | 2008-07-16 20:33:35 +0200 | [diff] [blame] | 868 | |
Borislav Petkov | 12469ac | 2008-10-13 21:39:49 +0200 | [diff] [blame] | 869 | drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 870 | |
| 871 | /* |
| 872 | * check if dma is safe |
Linus Torvalds | 5d9e4ea | 2005-05-27 07:36:17 -0700 | [diff] [blame] | 873 | * |
| 874 | * NOTE! The "len" and "addr" checks should possibly have |
| 875 | * separate masks. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | */ |
FUJITA Tomonori | e5318b5 | 2008-07-16 20:33:35 +0200 | [diff] [blame] | 877 | alignment = queue_dma_alignment(q) | q->dma_pad_mask; |
Borislav Petkov | 9bd27cb | 2008-11-02 21:40:07 +0100 | [diff] [blame] | 878 | if ((unsigned long)buf & alignment |
| 879 | || rq->data_len & q->dma_pad_mask |
FUJITA Tomonori | efa402d | 2008-10-10 22:39:22 +0200 | [diff] [blame] | 880 | || object_is_on_stack(buf)) |
Borislav Petkov | 12469ac | 2008-10-13 21:39:49 +0200 | [diff] [blame] | 881 | drive->dma = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 882 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 883 | } |
| 884 | |
Borislav Petkov | 99384ae | 2008-07-16 20:33:45 +0200 | [diff] [blame] | 885 | static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, |
Borislav Petkov | e5e076a | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 886 | sector_t block) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | { |
Bartlomiej Zolnierkiewicz | b788ee9 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 888 | struct ide_cmd cmd; |
Bartlomiej Zolnierkiewicz | f63174e | 2009-03-31 20:15:04 +0200 | [diff] [blame] | 889 | int uptodate = 0, nsectors; |
Bartlomiej Zolnierkiewicz | b788ee9 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 890 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 891 | ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, block: %llu", |
| 892 | rq->cmd[0], (unsigned long long)block); |
| 893 | |
| 894 | if (drive->debug_mask & IDE_DBG_RQ) |
| 895 | blk_dump_rq_flags(rq, "ide_cd_do_request"); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 896 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 897 | if (blk_fs_request(rq)) { |
Bartlomiej Zolnierkiewicz | 8652b31 | 2009-03-31 20:15:14 +0200 | [diff] [blame] | 898 | if (cdrom_start_rw(drive, rq) == ide_stopped) |
Bartlomiej Zolnierkiewicz | e0458cc | 2009-03-31 20:15:02 +0200 | [diff] [blame] | 899 | goto out_end; |
Bartlomiej Zolnierkiewicz | c9f56a8 | 2008-02-01 23:09:26 +0100 | [diff] [blame] | 900 | } else if (blk_sense_request(rq) || blk_pc_request(rq) || |
Jens Axboe | cea2885 | 2006-10-12 15:08:45 +0200 | [diff] [blame] | 901 | rq->cmd_type == REQ_TYPE_ATA_PC) { |
Borislav Petkov | 7fcebda | 2008-07-16 20:33:46 +0200 | [diff] [blame] | 902 | if (!rq->timeout) |
| 903 | rq->timeout = ATAPI_WAIT_PC; |
| 904 | |
Borislav Petkov | b6ca440 | 2008-07-16 20:33:46 +0200 | [diff] [blame] | 905 | cdrom_do_block_pc(drive, rq); |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 906 | } else if (blk_special_request(rq)) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 907 | /* right now this can only be a reset... */ |
Bartlomiej Zolnierkiewicz | e0458cc | 2009-03-31 20:15:02 +0200 | [diff] [blame] | 908 | uptodate = 1; |
| 909 | goto out_end; |
Borislav Petkov | ab9d6e3 | 2008-07-16 20:33:45 +0200 | [diff] [blame] | 910 | } else { |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 911 | blk_dump_rq_flags(rq, DRV_NAME " bad flags"); |
Bartlomiej Zolnierkiewicz | 5ed57ad | 2009-03-31 20:15:05 +0200 | [diff] [blame] | 912 | if (rq->errors == 0) |
| 913 | rq->errors = -EIO; |
Bartlomiej Zolnierkiewicz | e0458cc | 2009-03-31 20:15:02 +0200 | [diff] [blame] | 914 | goto out_end; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 915 | } |
Borislav Petkov | b6ca440 | 2008-07-16 20:33:46 +0200 | [diff] [blame] | 916 | |
Bartlomiej Zolnierkiewicz | b788ee9 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 917 | memset(&cmd, 0, sizeof(cmd)); |
| 918 | |
| 919 | if (rq_data_dir(rq)) |
| 920 | cmd.tf_flags |= IDE_TFLAG_WRITE; |
| 921 | |
| 922 | cmd.rq = rq; |
| 923 | |
Bartlomiej Zolnierkiewicz | c7ec899 | 2009-03-31 20:15:15 +0200 | [diff] [blame] | 924 | if (blk_fs_request(rq) || rq->data_len) { |
| 925 | ide_init_sg_cmd(&cmd, blk_fs_request(rq) ? (rq->nr_sectors << 9) |
| 926 | : rq->data_len); |
Bartlomiej Zolnierkiewicz | a08915b | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 927 | ide_map_sg(drive, &cmd); |
| 928 | } |
| 929 | |
Bartlomiej Zolnierkiewicz | b788ee9 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 930 | return ide_issue_pc(drive, &cmd); |
Bartlomiej Zolnierkiewicz | e0458cc | 2009-03-31 20:15:02 +0200 | [diff] [blame] | 931 | out_end: |
Bartlomiej Zolnierkiewicz | c4c69e2 | 2009-03-31 20:15:04 +0200 | [diff] [blame] | 932 | nsectors = rq->hard_nr_sectors; |
Bartlomiej Zolnierkiewicz | f63174e | 2009-03-31 20:15:04 +0200 | [diff] [blame] | 933 | |
| 934 | if (nsectors == 0) |
| 935 | nsectors = 1; |
| 936 | |
| 937 | ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9); |
| 938 | |
Bartlomiej Zolnierkiewicz | e0458cc | 2009-03-31 20:15:02 +0200 | [diff] [blame] | 939 | return ide_stopped; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 940 | } |
| 941 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 942 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 943 | * Ioctl handling. |
| 944 | * |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 945 | * Routines which queue packet commands take as a final argument a pointer to a |
| 946 | * request_sense struct. If execution of the command results in an error with a |
| 947 | * CHECK CONDITION status, this structure will be filled with the results of the |
| 948 | * subsequent request sense command. The pointer can also be NULL, in which case |
| 949 | * no sense information is returned. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 950 | */ |
Borislav Petkov | e5e076a | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 951 | static void msf_from_bcd(struct atapi_msf *msf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 952 | { |
Adrian Bunk | fc99856a | 2008-08-18 21:40:04 +0200 | [diff] [blame] | 953 | msf->minute = bcd2bin(msf->minute); |
| 954 | msf->second = bcd2bin(msf->second); |
| 955 | msf->frame = bcd2bin(msf->frame); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 956 | } |
| 957 | |
Borislav Petkov | f9afd18 | 2008-02-01 23:09:29 +0100 | [diff] [blame] | 958 | int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 959 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 960 | struct cdrom_info *info = drive->driver_data; |
| 961 | struct cdrom_device_info *cdi = &info->devinfo; |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 962 | unsigned char cmd[BLK_MAX_CDB]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 963 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 964 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 965 | |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 966 | memset(cmd, 0, BLK_MAX_CDB); |
| 967 | cmd[0] = GPCMD_TEST_UNIT_READY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | |
Bartlomiej Zolnierkiewicz | cdf6000 | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 969 | /* |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 970 | * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs |
| 971 | * instead of supporting the LOAD_UNLOAD opcode. |
Bartlomiej Zolnierkiewicz | cdf6000 | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 972 | */ |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 973 | cmd[7] = cdi->sanyo_slot % 3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 974 | |
Harvey Harrison | 141d3b2 | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 975 | return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, REQ_QUIET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 976 | } |
| 977 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 978 | static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, |
| 979 | unsigned long *sectors_per_frame, |
| 980 | struct request_sense *sense) |
| 981 | { |
| 982 | struct { |
Harvey Harrison | 141d3b2 | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 983 | __be32 lba; |
| 984 | __be32 blocklen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 985 | } capbuf; |
| 986 | |
| 987 | int stat; |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 988 | unsigned char cmd[BLK_MAX_CDB]; |
| 989 | unsigned len = sizeof(capbuf); |
Petr Tesarik | 938bb03 | 2008-08-05 18:17:02 +0200 | [diff] [blame] | 990 | u32 blocklen; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 991 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 992 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 993 | |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 994 | memset(cmd, 0, BLK_MAX_CDB); |
| 995 | cmd[0] = GPCMD_READ_CDVD_CAPACITY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 996 | |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 997 | stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0, |
| 998 | REQ_QUIET); |
Jens Axboe | e8e7b9e | 2008-07-24 22:53:35 +0200 | [diff] [blame] | 999 | if (stat) |
| 1000 | return stat; |
| 1001 | |
| 1002 | /* |
| 1003 | * Sanity check the given block size |
| 1004 | */ |
Petr Tesarik | 938bb03 | 2008-08-05 18:17:02 +0200 | [diff] [blame] | 1005 | blocklen = be32_to_cpu(capbuf.blocklen); |
| 1006 | switch (blocklen) { |
| 1007 | case 512: |
| 1008 | case 1024: |
| 1009 | case 2048: |
| 1010 | case 4096: |
Jens Axboe | e8e7b9e | 2008-07-24 22:53:35 +0200 | [diff] [blame] | 1011 | break; |
| 1012 | default: |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1013 | printk(KERN_ERR PFX "%s: weird block size %u\n", |
| 1014 | drive->name, blocklen); |
| 1015 | printk(KERN_ERR PFX "%s: default to 2kb block size\n", |
| 1016 | drive->name); |
Petr Tesarik | 938bb03 | 2008-08-05 18:17:02 +0200 | [diff] [blame] | 1017 | blocklen = 2048; |
Jens Axboe | e8e7b9e | 2008-07-24 22:53:35 +0200 | [diff] [blame] | 1018 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1019 | } |
| 1020 | |
Jens Axboe | e8e7b9e | 2008-07-24 22:53:35 +0200 | [diff] [blame] | 1021 | *capacity = 1 + be32_to_cpu(capbuf.lba); |
Petr Tesarik | 938bb03 | 2008-08-05 18:17:02 +0200 | [diff] [blame] | 1022 | *sectors_per_frame = blocklen >> SECTOR_BITS; |
Borislav Petkov | 71b429ca | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 1023 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 1024 | ide_debug_log(IDE_DBG_PROBE, "cap: %lu, sectors_per_frame: %lu", |
| 1025 | *capacity, *sectors_per_frame); |
Borislav Petkov | 71b429ca | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 1026 | |
Jens Axboe | e8e7b9e | 2008-07-24 22:53:35 +0200 | [diff] [blame] | 1027 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | } |
| 1029 | |
| 1030 | static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag, |
| 1031 | int format, char *buf, int buflen, |
| 1032 | struct request_sense *sense) |
| 1033 | { |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 1034 | unsigned char cmd[BLK_MAX_CDB]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 1036 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1037 | |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 1038 | memset(cmd, 0, BLK_MAX_CDB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1039 | |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 1040 | cmd[0] = GPCMD_READ_TOC_PMA_ATIP; |
| 1041 | cmd[6] = trackno; |
| 1042 | cmd[7] = (buflen >> 8); |
| 1043 | cmd[8] = (buflen & 0xff); |
| 1044 | cmd[9] = (format << 6); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1045 | |
| 1046 | if (msf_flag) |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 1047 | cmd[1] = 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1048 | |
FUJITA Tomonori | 5f82854 | 2008-07-15 21:21:42 +0200 | [diff] [blame] | 1049 | return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1050 | } |
| 1051 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1052 | /* Try to read the entire TOC for the disk into our internal buffer. */ |
Bartlomiej Zolnierkiewicz | 1780299 | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 1053 | int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1054 | { |
| 1055 | int stat, ntracks, i; |
| 1056 | struct cdrom_info *info = drive->driver_data; |
| 1057 | struct cdrom_device_info *cdi = &info->devinfo; |
| 1058 | struct atapi_toc *toc = info->toc; |
| 1059 | struct { |
| 1060 | struct atapi_toc_header hdr; |
| 1061 | struct atapi_toc_entry ent; |
| 1062 | } ms_tmp; |
| 1063 | long last_written; |
| 1064 | unsigned long sectors_per_frame = SECTORS_PER_FRAME; |
| 1065 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 1066 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1067 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1068 | if (toc == NULL) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1069 | /* try to allocate space */ |
Jesper Juhl | 2a91f3e | 2005-10-30 15:02:45 -0800 | [diff] [blame] | 1070 | toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1071 | if (toc == NULL) { |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1072 | printk(KERN_ERR PFX "%s: No cdrom TOC buffer!\n", |
Borislav Petkov | 83c8565 | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1073 | drive->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1074 | return -ENOMEM; |
| 1075 | } |
Jesper Juhl | 2a91f3e | 2005-10-30 15:02:45 -0800 | [diff] [blame] | 1076 | info->toc = toc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1077 | } |
| 1078 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1079 | /* |
| 1080 | * Check to see if the existing data is still valid. If it is, |
| 1081 | * just return. |
| 1082 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1083 | (void) cdrom_check_status(drive, sense); |
| 1084 | |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1085 | if (drive->atapi_flags & IDE_AFLAG_TOC_VALID) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1086 | return 0; |
| 1087 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1088 | /* try to get the total cdrom capacity and sector size */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1089 | stat = cdrom_read_capacity(drive, &toc->capacity, §ors_per_frame, |
| 1090 | sense); |
| 1091 | if (stat) |
| 1092 | toc->capacity = 0x1fffff; |
| 1093 | |
| 1094 | set_capacity(info->disk, toc->capacity * sectors_per_frame); |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1095 | /* save a private copy of the TOC capacity for error handling */ |
Alan Cox | dbe217a | 2006-06-25 05:47:44 -0700 | [diff] [blame] | 1096 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
| 1097 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1098 | blk_queue_hardsect_size(drive->queue, |
| 1099 | sectors_per_frame << SECTOR_BITS); |
| 1100 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1101 | /* first read just the header, so we know how long the TOC is */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1102 | stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr, |
| 1103 | sizeof(struct atapi_toc_header), sense); |
Jesper Juhl | 2a91f3e | 2005-10-30 15:02:45 -0800 | [diff] [blame] | 1104 | if (stat) |
| 1105 | return stat; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1106 | |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1107 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
Adrian Bunk | fc99856a | 2008-08-18 21:40:04 +0200 | [diff] [blame] | 1108 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
| 1109 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1110 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1111 | |
| 1112 | ntracks = toc->hdr.last_track - toc->hdr.first_track + 1; |
| 1113 | if (ntracks <= 0) |
| 1114 | return -EIO; |
| 1115 | if (ntracks > MAX_TRACKS) |
| 1116 | ntracks = MAX_TRACKS; |
| 1117 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1118 | /* now read the whole schmeer */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1119 | stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0, |
| 1120 | (char *)&toc->hdr, |
| 1121 | sizeof(struct atapi_toc_header) + |
| 1122 | (ntracks + 1) * |
| 1123 | sizeof(struct atapi_toc_entry), sense); |
| 1124 | |
| 1125 | if (stat && toc->hdr.first_track > 1) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1126 | /* |
| 1127 | * Cds with CDI tracks only don't have any TOC entries, despite |
| 1128 | * of this the returned values are |
| 1129 | * first_track == last_track = number of CDI tracks + 1, |
| 1130 | * so that this case is indistinguishable from the same layout |
| 1131 | * plus an additional audio track. If we get an error for the |
| 1132 | * regular case, we assume a CDI without additional audio |
| 1133 | * tracks. In this case the readable TOC is empty (CDI tracks |
| 1134 | * are not included) and only holds the Leadout entry. |
| 1135 | * |
| 1136 | * Heiko Eißfeldt. |
| 1137 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1138 | ntracks = 0; |
| 1139 | stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0, |
| 1140 | (char *)&toc->hdr, |
| 1141 | sizeof(struct atapi_toc_header) + |
| 1142 | (ntracks + 1) * |
| 1143 | sizeof(struct atapi_toc_entry), |
| 1144 | sense); |
Bartlomiej Zolnierkiewicz | cdf6000 | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1145 | if (stat) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1146 | return stat; |
Bartlomiej Zolnierkiewicz | cdf6000 | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1147 | |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1148 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
Adrian Bunk | fc99856a | 2008-08-18 21:40:04 +0200 | [diff] [blame] | 1149 | toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT); |
| 1150 | toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT); |
Bartlomiej Zolnierkiewicz | cdf6000 | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1151 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1152 | toc->hdr.first_track = CDROM_LEADOUT; |
| 1153 | toc->hdr.last_track = CDROM_LEADOUT; |
| 1154 | } |
| 1155 | } |
| 1156 | |
| 1157 | if (stat) |
| 1158 | return stat; |
| 1159 | |
Borislav Petkov | 7eb43fd | 2008-02-11 00:32:13 +0100 | [diff] [blame] | 1160 | toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1161 | |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1162 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
Adrian Bunk | fc99856a | 2008-08-18 21:40:04 +0200 | [diff] [blame] | 1163 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
| 1164 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1165 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1166 | |
Bartlomiej Zolnierkiewicz | cdf6000 | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1167 | for (i = 0; i <= ntracks; i++) { |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1168 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
| 1169 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) |
Adrian Bunk | fc99856a | 2008-08-18 21:40:04 +0200 | [diff] [blame] | 1170 | toc->ent[i].track = bcd2bin(toc->ent[i].track); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1171 | msf_from_bcd(&toc->ent[i].addr.msf); |
| 1172 | } |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 1173 | toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute, |
| 1174 | toc->ent[i].addr.msf.second, |
| 1175 | toc->ent[i].addr.msf.frame); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1176 | } |
| 1177 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1178 | if (toc->hdr.first_track != CDROM_LEADOUT) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1179 | /* read the multisession information */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1180 | stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp, |
| 1181 | sizeof(ms_tmp), sense); |
Jesper Juhl | 2a91f3e | 2005-10-30 15:02:45 -0800 | [diff] [blame] | 1182 | if (stat) |
| 1183 | return stat; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1184 | |
| 1185 | toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba); |
| 1186 | } else { |
Borislav Petkov | e5e076a | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1187 | ms_tmp.hdr.last_track = CDROM_LEADOUT; |
| 1188 | ms_tmp.hdr.first_track = ms_tmp.hdr.last_track; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1189 | toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */ |
| 1190 | } |
| 1191 | |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1192 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1193 | /* re-read multisession information using MSF format */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1194 | stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp, |
| 1195 | sizeof(ms_tmp), sense); |
| 1196 | if (stat) |
| 1197 | return stat; |
| 1198 | |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 1199 | msf_from_bcd(&ms_tmp.ent.addr.msf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1200 | toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute, |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 1201 | ms_tmp.ent.addr.msf.second, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1202 | ms_tmp.ent.addr.msf.frame); |
| 1203 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1204 | |
| 1205 | toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track); |
| 1206 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1207 | /* now try to get the total cdrom capacity */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1208 | stat = cdrom_get_last_written(cdi, &last_written); |
| 1209 | if (!stat && (last_written > toc->capacity)) { |
| 1210 | toc->capacity = last_written; |
| 1211 | set_capacity(info->disk, toc->capacity * sectors_per_frame); |
Alan Cox | dbe217a | 2006-06-25 05:47:44 -0700 | [diff] [blame] | 1212 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1213 | } |
| 1214 | |
| 1215 | /* Remember that we've read this stuff. */ |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1216 | drive->atapi_flags |= IDE_AFLAG_TOC_VALID; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1217 | |
| 1218 | return 0; |
| 1219 | } |
| 1220 | |
Bartlomiej Zolnierkiewicz | 1780299 | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 1221 | int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf) |
Eric Piel | 9235e68 | 2005-06-23 00:10:29 -0700 | [diff] [blame] | 1222 | { |
| 1223 | struct cdrom_info *info = drive->driver_data; |
| 1224 | struct cdrom_device_info *cdi = &info->devinfo; |
| 1225 | struct packet_command cgc; |
Bartlomiej Zolnierkiewicz | 455d80a | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1226 | int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE; |
Eric Piel | 9235e68 | 2005-06-23 00:10:29 -0700 | [diff] [blame] | 1227 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 1228 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1229 | |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1230 | if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0) |
Bartlomiej Zolnierkiewicz | 455d80a | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1231 | size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE; |
Eric Piel | 9235e68 | 2005-06-23 00:10:29 -0700 | [diff] [blame] | 1232 | |
Bartlomiej Zolnierkiewicz | 455d80a | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1233 | init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN); |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1234 | do { |
| 1235 | /* we seem to get stat=0x01,err=0x00 the first time (??) */ |
Eric Piel | 9235e68 | 2005-06-23 00:10:29 -0700 | [diff] [blame] | 1236 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0); |
| 1237 | if (!stat) |
| 1238 | break; |
| 1239 | } while (--attempts); |
| 1240 | return stat; |
| 1241 | } |
| 1242 | |
Bartlomiej Zolnierkiewicz | 1780299 | 2008-02-01 23:09:25 +0100 | [diff] [blame] | 1243 | void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf) |
Eric Piel | 9235e68 | 2005-06-23 00:10:29 -0700 | [diff] [blame] | 1244 | { |
Bartlomiej Zolnierkiewicz | 4fe6717 | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1245 | struct cdrom_info *cd = drive->driver_data; |
Bartlomiej Zolnierkiewicz | 481c8c6 | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1246 | u16 curspeed, maxspeed; |
| 1247 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 1248 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1249 | |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1250 | if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) { |
Harvey Harrison | 141d3b2 | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1251 | curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]); |
| 1252 | maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]); |
Eric Piel | 9235e68 | 2005-06-23 00:10:29 -0700 | [diff] [blame] | 1253 | } else { |
Harvey Harrison | 141d3b2 | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1254 | curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]); |
| 1255 | maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]); |
Eric Piel | 9235e68 | 2005-06-23 00:10:29 -0700 | [diff] [blame] | 1256 | } |
Bartlomiej Zolnierkiewicz | 481c8c6 | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1257 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 1258 | ide_debug_log(IDE_DBG_PROBE, "curspeed: %u, maxspeed: %u", |
| 1259 | curspeed, maxspeed); |
Borislav Petkov | 71b429ca | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 1260 | |
Bartlomiej Zolnierkiewicz | 2bc4cf2 | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1261 | cd->current_speed = (curspeed + (176/2)) / 176; |
| 1262 | cd->max_speed = (maxspeed + (176/2)) / 176; |
Eric Piel | 9235e68 | 2005-06-23 00:10:29 -0700 | [diff] [blame] | 1263 | } |
| 1264 | |
Bartlomiej Zolnierkiewicz | 20e7f7e | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1265 | #define IDE_CD_CAPABILITIES \ |
| 1266 | (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \ |
| 1267 | CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \ |
| 1268 | CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \ |
| 1269 | CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \ |
| 1270 | CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1271 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1272 | static struct cdrom_device_ops ide_cdrom_dops = { |
| 1273 | .open = ide_cdrom_open_real, |
| 1274 | .release = ide_cdrom_release_real, |
| 1275 | .drive_status = ide_cdrom_drive_status, |
| 1276 | .media_changed = ide_cdrom_check_media_change_real, |
| 1277 | .tray_move = ide_cdrom_tray_move, |
| 1278 | .lock_door = ide_cdrom_lock_door, |
| 1279 | .select_speed = ide_cdrom_select_speed, |
| 1280 | .get_last_session = ide_cdrom_get_last_session, |
| 1281 | .get_mcn = ide_cdrom_get_mcn, |
| 1282 | .reset = ide_cdrom_reset, |
| 1283 | .audio_ioctl = ide_cdrom_audio_ioctl, |
Bartlomiej Zolnierkiewicz | 20e7f7e | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1284 | .capability = IDE_CD_CAPABILITIES, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1285 | .generic_packet = ide_cdrom_packet, |
| 1286 | }; |
| 1287 | |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 1288 | static int ide_cdrom_register(ide_drive_t *drive, int nslots) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1289 | { |
| 1290 | struct cdrom_info *info = drive->driver_data; |
| 1291 | struct cdrom_device_info *devinfo = &info->devinfo; |
| 1292 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 1293 | ide_debug_log(IDE_DBG_PROBE, "nslots: %d", nslots); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1294 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1295 | devinfo->ops = &ide_cdrom_dops; |
Bartlomiej Zolnierkiewicz | 2bc4cf2 | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1296 | devinfo->speed = info->current_speed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1297 | devinfo->capacity = nslots; |
Jesper Juhl | 2a91f3e | 2005-10-30 15:02:45 -0800 | [diff] [blame] | 1298 | devinfo->handle = drive; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1299 | strcpy(devinfo->name, drive->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1300 | |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1301 | if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT) |
Bartlomiej Zolnierkiewicz | 3cbd814 | 2007-12-24 15:23:43 +0100 | [diff] [blame] | 1302 | devinfo->mask |= CDC_SELECT_SPEED; |
| 1303 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1304 | devinfo->disk = info->disk; |
| 1305 | return register_cdrom(devinfo); |
| 1306 | } |
| 1307 | |
Borislav Petkov | e5e076a | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1308 | static int ide_cdrom_probe_capabilities(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1309 | { |
Bartlomiej Zolnierkiewicz | 4fe6717 | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1310 | struct cdrom_info *cd = drive->driver_data; |
| 1311 | struct cdrom_device_info *cdi = &cd->devinfo; |
Bartlomiej Zolnierkiewicz | 455d80a | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1312 | u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; |
| 1313 | mechtype_t mechtype; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1314 | int nslots = 1; |
| 1315 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 1316 | ide_debug_log(IDE_DBG_PROBE, "media: 0x%x, atapi_flags: 0x%lx", |
| 1317 | drive->media, drive->atapi_flags); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1318 | |
Bartlomiej Zolnierkiewicz | 3f1b86d | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1319 | cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R | |
| 1320 | CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO | |
| 1321 | CDC_MO_DRIVE | CDC_RAM); |
| 1322 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1323 | if (drive->media == ide_optical) { |
Bartlomiej Zolnierkiewicz | 3f1b86d | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1324 | cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1325 | printk(KERN_ERR PFX "%s: ATAPI magneto-optical drive\n", |
Borislav Petkov | 83c8565 | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1326 | drive->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1327 | return nslots; |
| 1328 | } |
| 1329 | |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1330 | if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) { |
| 1331 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; |
Bartlomiej Zolnierkiewicz | 3f1b86d | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1332 | cdi->mask &= ~CDC_PLAY_AUDIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1333 | return nslots; |
| 1334 | } |
| 1335 | |
| 1336 | /* |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1337 | * We have to cheat a little here. the packet will eventually be queued |
| 1338 | * with ide_cdrom_packet(), which extracts the drive from cdi->handle. |
| 1339 | * Since this device hasn't been registered with the Uniform layer yet, |
| 1340 | * it can't do this. Same goes for cdi->ops. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1341 | */ |
Jesper Juhl | 2a91f3e | 2005-10-30 15:02:45 -0800 | [diff] [blame] | 1342 | cdi->handle = drive; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1343 | cdi->ops = &ide_cdrom_dops; |
| 1344 | |
Bartlomiej Zolnierkiewicz | 455d80a | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1345 | if (ide_cdrom_get_capabilities(drive, buf)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1346 | return 0; |
| 1347 | |
Bartlomiej Zolnierkiewicz | 455d80a | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1348 | if ((buf[8 + 6] & 0x01) == 0) |
Bartlomiej Zolnierkiewicz | 42619d3 | 2008-10-17 18:09:11 +0200 | [diff] [blame] | 1349 | drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; |
Bartlomiej Zolnierkiewicz | 455d80a | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1350 | if (buf[8 + 6] & 0x08) |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1351 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; |
Bartlomiej Zolnierkiewicz | 455d80a | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1352 | if (buf[8 + 3] & 0x01) |
Bartlomiej Zolnierkiewicz | 3f1b86d | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1353 | cdi->mask &= ~CDC_CD_R; |
Bartlomiej Zolnierkiewicz | 455d80a | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1354 | if (buf[8 + 3] & 0x02) |
Bartlomiej Zolnierkiewicz | 3f1b86d | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1355 | cdi->mask &= ~(CDC_CD_RW | CDC_RAM); |
Bartlomiej Zolnierkiewicz | 455d80a | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1356 | if (buf[8 + 2] & 0x38) |
Bartlomiej Zolnierkiewicz | 3f1b86d | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1357 | cdi->mask &= ~CDC_DVD; |
Bartlomiej Zolnierkiewicz | 455d80a | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1358 | if (buf[8 + 3] & 0x20) |
Bartlomiej Zolnierkiewicz | 3f1b86d | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1359 | cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM); |
Bartlomiej Zolnierkiewicz | 455d80a | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1360 | if (buf[8 + 3] & 0x10) |
Bartlomiej Zolnierkiewicz | 3f1b86d | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1361 | cdi->mask &= ~CDC_DVD_R; |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1362 | if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK)) |
Bartlomiej Zolnierkiewicz | 3f1b86d | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1363 | cdi->mask &= ~CDC_PLAY_AUDIO; |
Bartlomiej Zolnierkiewicz | 455d80a | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1364 | |
| 1365 | mechtype = buf[8 + 6] >> 5; |
Borislav Petkov | f20f258 | 2008-10-05 18:23:27 +0200 | [diff] [blame] | 1366 | if (mechtype == mechtype_caddy || |
| 1367 | mechtype == mechtype_popup || |
| 1368 | (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE)) |
Bartlomiej Zolnierkiewicz | 3f1b86d | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1369 | cdi->mask |= CDC_CLOSE_TRAY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1370 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1371 | if (cdi->sanyo_slot > 0) { |
Bartlomiej Zolnierkiewicz | 3f1b86d | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1372 | cdi->mask &= ~CDC_SELECT_DISC; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1373 | nslots = 3; |
Bartlomiej Zolnierkiewicz | cdf6000 | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1374 | } else if (mechtype == mechtype_individual_changer || |
| 1375 | mechtype == mechtype_cartridge_changer) { |
Bartlomiej Zolnierkiewicz | 2609d06 | 2008-02-01 23:09:19 +0100 | [diff] [blame] | 1376 | nslots = cdrom_number_of_slots(cdi); |
| 1377 | if (nslots > 1) |
Bartlomiej Zolnierkiewicz | 3f1b86d | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1378 | cdi->mask &= ~CDC_SELECT_DISC; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1379 | } |
| 1380 | |
Bartlomiej Zolnierkiewicz | 455d80a | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1381 | ide_cdrom_update_speed(drive, buf); |
Bartlomiej Zolnierkiewicz | 4fe6717 | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1382 | |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1383 | printk(KERN_INFO PFX "%s: ATAPI", drive->name); |
Bartlomiej Zolnierkiewicz | 4fe6717 | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1384 | |
| 1385 | /* don't print speed if the drive reported 0 */ |
Bartlomiej Zolnierkiewicz | 2bc4cf2 | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1386 | if (cd->max_speed) |
| 1387 | printk(KERN_CONT " %dX", cd->max_speed); |
Bartlomiej Zolnierkiewicz | 4fe6717 | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1388 | |
Bartlomiej Zolnierkiewicz | 3f1b86d | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1389 | printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1390 | |
Bartlomiej Zolnierkiewicz | 3f1b86d | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1391 | if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0) |
| 1392 | printk(KERN_CONT " DVD%s%s", |
| 1393 | (cdi->mask & CDC_DVD_R) ? "" : "-R", |
Borislav Petkov | 419a5b6 | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 1394 | (cdi->mask & CDC_DVD_RAM) ? "" : "/RAM"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1395 | |
Bartlomiej Zolnierkiewicz | 3f1b86d | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1396 | if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0) |
| 1397 | printk(KERN_CONT " CD%s%s", |
| 1398 | (cdi->mask & CDC_CD_R) ? "" : "-R", |
| 1399 | (cdi->mask & CDC_CD_RW) ? "" : "/RW"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1400 | |
Bartlomiej Zolnierkiewicz | 3f1b86d | 2008-02-01 23:09:20 +0100 | [diff] [blame] | 1401 | if ((cdi->mask & CDC_SELECT_DISC) == 0) |
| 1402 | printk(KERN_CONT " changer w/%d slots", nslots); |
| 1403 | else |
| 1404 | printk(KERN_CONT " drive"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1405 | |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1406 | printk(KERN_CONT ", %dkB Cache\n", |
| 1407 | be16_to_cpup((__be16 *)&buf[8 + 12])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1408 | |
| 1409 | return nslots; |
| 1410 | } |
| 1411 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1412 | /* standard prep_rq_fn that builds 10 byte cmds */ |
Jens Axboe | 165125e | 2007-07-24 09:28:11 +0200 | [diff] [blame] | 1413 | static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1414 | { |
| 1415 | int hard_sect = queue_hardsect_size(q); |
| 1416 | long block = (long)rq->hard_sector / (hard_sect >> 9); |
| 1417 | unsigned long blocks = rq->hard_nr_sectors / (hard_sect >> 9); |
| 1418 | |
FUJITA Tomonori | d34c87e | 2008-04-29 14:37:52 +0200 | [diff] [blame] | 1419 | memset(rq->cmd, 0, BLK_MAX_CDB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1420 | |
| 1421 | if (rq_data_dir(rq) == READ) |
| 1422 | rq->cmd[0] = GPCMD_READ_10; |
| 1423 | else |
| 1424 | rq->cmd[0] = GPCMD_WRITE_10; |
| 1425 | |
| 1426 | /* |
| 1427 | * fill in lba |
| 1428 | */ |
| 1429 | rq->cmd[2] = (block >> 24) & 0xff; |
| 1430 | rq->cmd[3] = (block >> 16) & 0xff; |
| 1431 | rq->cmd[4] = (block >> 8) & 0xff; |
| 1432 | rq->cmd[5] = block & 0xff; |
| 1433 | |
| 1434 | /* |
| 1435 | * and transfer length |
| 1436 | */ |
| 1437 | rq->cmd[7] = (blocks >> 8) & 0xff; |
| 1438 | rq->cmd[8] = blocks & 0xff; |
| 1439 | rq->cmd_len = 10; |
| 1440 | return BLKPREP_OK; |
| 1441 | } |
| 1442 | |
| 1443 | /* |
| 1444 | * Most of the SCSI commands are supported directly by ATAPI devices. |
| 1445 | * This transform handles the few exceptions. |
| 1446 | */ |
| 1447 | static int ide_cdrom_prep_pc(struct request *rq) |
| 1448 | { |
| 1449 | u8 *c = rq->cmd; |
| 1450 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1451 | /* transform 6-byte read/write commands to the 10-byte version */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1452 | if (c[0] == READ_6 || c[0] == WRITE_6) { |
| 1453 | c[8] = c[4]; |
| 1454 | c[5] = c[3]; |
| 1455 | c[4] = c[2]; |
| 1456 | c[3] = c[1] & 0x1f; |
| 1457 | c[2] = 0; |
| 1458 | c[1] &= 0xe0; |
| 1459 | c[0] += (READ_10 - READ_6); |
| 1460 | rq->cmd_len = 10; |
| 1461 | return BLKPREP_OK; |
| 1462 | } |
| 1463 | |
| 1464 | /* |
| 1465 | * it's silly to pretend we understand 6-byte sense commands, just |
| 1466 | * reject with ILLEGAL_REQUEST and the caller should take the |
| 1467 | * appropriate action |
| 1468 | */ |
| 1469 | if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) { |
| 1470 | rq->errors = ILLEGAL_REQUEST; |
| 1471 | return BLKPREP_KILL; |
| 1472 | } |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 1473 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1474 | return BLKPREP_OK; |
| 1475 | } |
| 1476 | |
Jens Axboe | 165125e | 2007-07-24 09:28:11 +0200 | [diff] [blame] | 1477 | static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1478 | { |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 1479 | if (blk_fs_request(rq)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1480 | return ide_cdrom_prep_fs(q, rq); |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 1481 | else if (blk_pc_request(rq)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1482 | return ide_cdrom_prep_pc(rq); |
| 1483 | |
| 1484 | return 0; |
| 1485 | } |
| 1486 | |
Bartlomiej Zolnierkiewicz | e59724c | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1487 | struct cd_list_entry { |
| 1488 | const char *id_model; |
| 1489 | const char *id_firmware; |
| 1490 | unsigned int cd_flags; |
| 1491 | }; |
| 1492 | |
Borislav Petkov | 5e657a9 | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1493 | #ifdef CONFIG_IDE_PROC_FS |
| 1494 | static sector_t ide_cdrom_capacity(ide_drive_t *drive) |
| 1495 | { |
| 1496 | unsigned long capacity, sectors_per_frame; |
| 1497 | |
| 1498 | if (cdrom_read_capacity(drive, &capacity, §ors_per_frame, NULL)) |
| 1499 | return 0; |
| 1500 | |
| 1501 | return capacity * sectors_per_frame; |
| 1502 | } |
| 1503 | |
Borislav Petkov | e5e076a | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1504 | static int proc_idecd_read_capacity(char *page, char **start, off_t off, |
| 1505 | int count, int *eof, void *data) |
Borislav Petkov | 5e657a9 | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1506 | { |
| 1507 | ide_drive_t *drive = data; |
| 1508 | int len; |
| 1509 | |
| 1510 | len = sprintf(page, "%llu\n", (long long)ide_cdrom_capacity(drive)); |
| 1511 | PROC_IDE_READ_RETURN(page, start, off, count, eof, len); |
| 1512 | } |
| 1513 | |
| 1514 | static ide_proc_entry_t idecd_proc[] = { |
| 1515 | { "capacity", S_IFREG|S_IRUGO, proc_idecd_read_capacity, NULL }, |
| 1516 | { NULL, 0, NULL, NULL } |
| 1517 | }; |
| 1518 | |
Bartlomiej Zolnierkiewicz | 79cb380 | 2008-10-17 18:09:13 +0200 | [diff] [blame] | 1519 | static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive) |
| 1520 | { |
| 1521 | return idecd_proc; |
| 1522 | } |
| 1523 | |
| 1524 | static const struct ide_proc_devset *ide_cd_proc_devsets(ide_drive_t *drive) |
| 1525 | { |
Bartlomiej Zolnierkiewicz | 519d680 | 2008-12-29 20:27:38 +0100 | [diff] [blame] | 1526 | return NULL; |
Bartlomiej Zolnierkiewicz | 79cb380 | 2008-10-17 18:09:13 +0200 | [diff] [blame] | 1527 | } |
Borislav Petkov | 5e657a9 | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1528 | #endif |
| 1529 | |
Bartlomiej Zolnierkiewicz | e59724c | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1530 | static const struct cd_list_entry ide_cd_quirks_list[] = { |
Bartlomiej Zolnierkiewicz | e59724c | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1531 | /* SCR-3231 doesn't support the SET_CD_SPEED command. */ |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1532 | { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT }, |
Bartlomiej Zolnierkiewicz | e59724c | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1533 | /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */ |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1534 | { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD | |
| 1535 | IDE_AFLAG_PRE_ATAPI12, }, |
Bartlomiej Zolnierkiewicz | e59724c | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1536 | /* Vertos 300, some versions of this drive like to talk BCD. */ |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1537 | { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, }, |
Bartlomiej Zolnierkiewicz | e59724c | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1538 | /* Vertos 600 ESD. */ |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1539 | { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, }, |
Bartlomiej Zolnierkiewicz | e59724c | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1540 | /* |
| 1541 | * Sanyo 3 CD changer uses a non-standard command for CD changing |
| 1542 | * (by default standard ATAPI support for CD changers is used). |
| 1543 | */ |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1544 | { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD }, |
| 1545 | { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD }, |
| 1546 | { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD }, |
Bartlomiej Zolnierkiewicz | e59724c | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1547 | /* Stingray 8X CD-ROM. */ |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1548 | { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 }, |
Bartlomiej Zolnierkiewicz | e59724c | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1549 | /* |
| 1550 | * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length |
| 1551 | * mode sense page capabilities size, but older drives break. |
| 1552 | */ |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1553 | { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, |
| 1554 | { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, |
Bartlomiej Zolnierkiewicz | e59724c | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1555 | /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */ |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1556 | { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS }, |
Bartlomiej Zolnierkiewicz | e59724c | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1557 | /* |
| 1558 | * Some drives used by Apple don't advertise audio play |
| 1559 | * but they do support reading TOC & audio datas. |
| 1560 | */ |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1561 | { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
| 1562 | { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
| 1563 | { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
| 1564 | { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
| 1565 | { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
Bodo Eggert | f3e85ee | 2008-10-05 18:23:28 +0200 | [diff] [blame] | 1566 | { "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
Borislav Petkov | f20f258 | 2008-10-05 18:23:27 +0200 | [diff] [blame] | 1567 | { "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
Márton Németh | 64c2eae | 2008-10-23 23:22:09 +0200 | [diff] [blame] | 1568 | { "TEAC CD-ROM CD-224E", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
Bartlomiej Zolnierkiewicz | e59724c | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1569 | { NULL, NULL, 0 } |
| 1570 | }; |
| 1571 | |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 1572 | static unsigned int ide_cd_flags(u16 *id) |
Bartlomiej Zolnierkiewicz | e59724c | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1573 | { |
| 1574 | const struct cd_list_entry *cle = ide_cd_quirks_list; |
| 1575 | |
| 1576 | while (cle->id_model) { |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 1577 | if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 && |
Bartlomiej Zolnierkiewicz | e59724c | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1578 | (cle->id_firmware == NULL || |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 1579 | strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware))) |
Bartlomiej Zolnierkiewicz | e59724c | 2008-02-01 23:09:22 +0100 | [diff] [blame] | 1580 | return cle->cd_flags; |
| 1581 | cle++; |
| 1582 | } |
| 1583 | |
| 1584 | return 0; |
| 1585 | } |
| 1586 | |
Borislav Petkov | e5e076a | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1587 | static int ide_cdrom_setup(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1588 | { |
Bartlomiej Zolnierkiewicz | 4fe6717 | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1589 | struct cdrom_info *cd = drive->driver_data; |
| 1590 | struct cdrom_device_info *cdi = &cd->devinfo; |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 1591 | u16 *id = drive->id; |
| 1592 | char *fw_rev = (char *)&id[ATA_ID_FW_REV]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1593 | int nslots; |
| 1594 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 1595 | ide_debug_log(IDE_DBG_PROBE, "enter"); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1596 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1597 | blk_queue_prep_rq(drive->queue, ide_cdrom_prep_fn); |
| 1598 | blk_queue_dma_alignment(drive->queue, 31); |
FUJITA Tomonori | e5318b5 | 2008-07-16 20:33:35 +0200 | [diff] [blame] | 1599 | blk_queue_update_dma_pad(drive->queue, 15); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1600 | drive->queue->unplug_delay = (1 * HZ) / 1000; |
| 1601 | if (!drive->queue->unplug_delay) |
| 1602 | drive->queue->unplug_delay = 1; |
| 1603 | |
Bartlomiej Zolnierkiewicz | fe11edf | 2008-10-17 18:09:11 +0200 | [diff] [blame] | 1604 | drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED; |
| 1605 | drive->atapi_flags = IDE_AFLAG_NO_EJECT | ide_cd_flags(id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1606 | |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1607 | if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) && |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 1608 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1609 | drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD | |
| 1610 | IDE_AFLAG_TOCADDR_AS_BCD); |
| 1611 | else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) && |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 1612 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
Borislav Petkov | 570f89e | 2008-07-23 19:56:02 +0200 | [diff] [blame] | 1613 | drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD; |
| 1614 | else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD) |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1615 | /* 3 => use CD in slot 0 */ |
| 1616 | cdi->sanyo_slot = 3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1617 | |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 1618 | nslots = ide_cdrom_probe_capabilities(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1619 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1620 | /* set correct block size */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1621 | blk_queue_hardsect_size(drive->queue, CD_FRAMESIZE); |
| 1622 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1623 | if (ide_cdrom_register(drive, nslots)) { |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1624 | printk(KERN_ERR PFX "%s: %s failed to register device with the" |
Borislav Petkov | 83c8565 | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1625 | " cdrom driver.\n", drive->name, __func__); |
Bartlomiej Zolnierkiewicz | 4fe6717 | 2008-02-01 23:09:21 +0100 | [diff] [blame] | 1626 | cd->devinfo.handle = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1627 | return 1; |
| 1628 | } |
Bartlomiej Zolnierkiewicz | 1e874f4 | 2008-10-10 22:39:27 +0200 | [diff] [blame] | 1629 | |
| 1630 | ide_proc_register_driver(drive, cd->driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1631 | return 0; |
| 1632 | } |
| 1633 | |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 1634 | static void ide_cd_remove(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1635 | { |
| 1636 | struct cdrom_info *info = drive->driver_data; |
| 1637 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 1638 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1639 | |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 1640 | ide_proc_unregister_driver(drive, info->driver); |
Bartlomiej Zolnierkiewicz | 8fed436 | 2009-02-25 20:28:24 +0100 | [diff] [blame] | 1641 | device_del(&info->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1642 | del_gendisk(info->disk); |
| 1643 | |
Bartlomiej Zolnierkiewicz | 8fed436 | 2009-02-25 20:28:24 +0100 | [diff] [blame] | 1644 | mutex_lock(&idecd_ref_mutex); |
| 1645 | put_device(&info->dev); |
| 1646 | mutex_unlock(&idecd_ref_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1647 | } |
| 1648 | |
Bartlomiej Zolnierkiewicz | 8fed436 | 2009-02-25 20:28:24 +0100 | [diff] [blame] | 1649 | static void ide_cd_release(struct device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1650 | { |
Bartlomiej Zolnierkiewicz | 8fed436 | 2009-02-25 20:28:24 +0100 | [diff] [blame] | 1651 | struct cdrom_info *info = to_ide_drv(dev, cdrom_info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1652 | struct cdrom_device_info *devinfo = &info->devinfo; |
| 1653 | ide_drive_t *drive = info->drive; |
| 1654 | struct gendisk *g = info->disk; |
| 1655 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 1656 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1657 | |
Jesper Juhl | 6044ec8 | 2005-11-07 01:01:32 -0800 | [diff] [blame] | 1658 | kfree(info->toc); |
Akinobu Mita | 0a0c411 | 2008-03-26 12:09:02 +0100 | [diff] [blame] | 1659 | if (devinfo->handle == drive) |
| 1660 | unregister_cdrom(devinfo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1661 | drive->driver_data = NULL; |
| 1662 | blk_queue_prep_rq(drive->queue, NULL); |
| 1663 | g->private_data = NULL; |
| 1664 | put_disk(g); |
| 1665 | kfree(info); |
| 1666 | } |
| 1667 | |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 1668 | static int ide_cd_probe(ide_drive_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1669 | |
Bartlomiej Zolnierkiewicz | 7f3c868 | 2009-01-06 17:20:53 +0100 | [diff] [blame] | 1670 | static struct ide_driver ide_cdrom_driver = { |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1671 | .gen_driver = { |
Laurent Riffard | 4ef3b8f | 2005-11-18 22:15:40 +0100 | [diff] [blame] | 1672 | .owner = THIS_MODULE, |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1673 | .name = "ide-cdrom", |
| 1674 | .bus = &ide_bus_type, |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1675 | }, |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 1676 | .probe = ide_cd_probe, |
| 1677 | .remove = ide_cd_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1678 | .version = IDECD_VERSION, |
Borislav Petkov | 99384ae | 2008-07-16 20:33:45 +0200 | [diff] [blame] | 1679 | .do_request = ide_cd_do_request, |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 1680 | #ifdef CONFIG_IDE_PROC_FS |
Bartlomiej Zolnierkiewicz | 79cb380 | 2008-10-17 18:09:13 +0200 | [diff] [blame] | 1681 | .proc_entries = ide_cd_proc_entries, |
| 1682 | .proc_devsets = ide_cd_proc_devsets, |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 1683 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1684 | }; |
| 1685 | |
Al Viro | 488ca60 | 2008-03-02 10:26:23 -0500 | [diff] [blame] | 1686 | static int idecd_open(struct block_device *bdev, fmode_t mode) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1687 | { |
Al Viro | 488ca60 | 2008-03-02 10:26:23 -0500 | [diff] [blame] | 1688 | struct cdrom_info *info = ide_cd_get(bdev->bd_disk); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1689 | int rc = -ENOMEM; |
| 1690 | |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 1691 | if (!info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1692 | return -ENXIO; |
| 1693 | |
Al Viro | 488ca60 | 2008-03-02 10:26:23 -0500 | [diff] [blame] | 1694 | rc = cdrom_open(&info->devinfo, bdev, mode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1695 | |
| 1696 | if (rc < 0) |
| 1697 | ide_cd_put(info); |
| 1698 | |
| 1699 | return rc; |
| 1700 | } |
| 1701 | |
Al Viro | 488ca60 | 2008-03-02 10:26:23 -0500 | [diff] [blame] | 1702 | static int idecd_release(struct gendisk *disk, fmode_t mode) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1703 | { |
Borislav Petkov | 5aeddf9 | 2008-10-13 21:39:34 +0200 | [diff] [blame] | 1704 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1705 | |
Al Viro | 488ca60 | 2008-03-02 10:26:23 -0500 | [diff] [blame] | 1706 | cdrom_release(&info->devinfo, mode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1707 | |
| 1708 | ide_cd_put(info); |
| 1709 | |
| 1710 | return 0; |
| 1711 | } |
| 1712 | |
Christoph Hellwig | 6a2900b | 2006-03-23 03:00:15 -0800 | [diff] [blame] | 1713 | static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg) |
| 1714 | { |
| 1715 | struct packet_command cgc; |
| 1716 | char buffer[16]; |
| 1717 | int stat; |
| 1718 | char spindown; |
| 1719 | |
| 1720 | if (copy_from_user(&spindown, (void __user *)arg, sizeof(char))) |
| 1721 | return -EFAULT; |
| 1722 | |
| 1723 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); |
| 1724 | |
| 1725 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); |
| 1726 | if (stat) |
| 1727 | return stat; |
| 1728 | |
| 1729 | buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f); |
| 1730 | return cdrom_mode_select(cdi, &cgc); |
| 1731 | } |
| 1732 | |
| 1733 | static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg) |
| 1734 | { |
| 1735 | struct packet_command cgc; |
| 1736 | char buffer[16]; |
| 1737 | int stat; |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 1738 | char spindown; |
Christoph Hellwig | 6a2900b | 2006-03-23 03:00:15 -0800 | [diff] [blame] | 1739 | |
| 1740 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); |
| 1741 | |
| 1742 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); |
| 1743 | if (stat) |
| 1744 | return stat; |
| 1745 | |
| 1746 | spindown = buffer[11] & 0x0f; |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 1747 | if (copy_to_user((void __user *)arg, &spindown, sizeof(char))) |
Christoph Hellwig | 6a2900b | 2006-03-23 03:00:15 -0800 | [diff] [blame] | 1748 | return -EFAULT; |
| 1749 | return 0; |
| 1750 | } |
| 1751 | |
Al Viro | 488ca60 | 2008-03-02 10:26:23 -0500 | [diff] [blame] | 1752 | static int idecd_ioctl(struct block_device *bdev, fmode_t mode, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1753 | unsigned int cmd, unsigned long arg) |
| 1754 | { |
Borislav Petkov | 5aeddf9 | 2008-10-13 21:39:34 +0200 | [diff] [blame] | 1755 | struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1756 | int err; |
| 1757 | |
Christoph Hellwig | 6a2900b | 2006-03-23 03:00:15 -0800 | [diff] [blame] | 1758 | switch (cmd) { |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 1759 | case CDROMSETSPINDOWN: |
Christoph Hellwig | 6a2900b | 2006-03-23 03:00:15 -0800 | [diff] [blame] | 1760 | return idecd_set_spindown(&info->devinfo, arg); |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 1761 | case CDROMGETSPINDOWN: |
Christoph Hellwig | 6a2900b | 2006-03-23 03:00:15 -0800 | [diff] [blame] | 1762 | return idecd_get_spindown(&info->devinfo, arg); |
| 1763 | default: |
| 1764 | break; |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 1765 | } |
Christoph Hellwig | 6a2900b | 2006-03-23 03:00:15 -0800 | [diff] [blame] | 1766 | |
Al Viro | 1bddd9e | 2008-09-02 17:19:43 -0400 | [diff] [blame] | 1767 | err = generic_ide_ioctl(info->drive, bdev, cmd, arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1768 | if (err == -EINVAL) |
Al Viro | 488ca60 | 2008-03-02 10:26:23 -0500 | [diff] [blame] | 1769 | err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1770 | |
| 1771 | return err; |
| 1772 | } |
| 1773 | |
| 1774 | static int idecd_media_changed(struct gendisk *disk) |
| 1775 | { |
Borislav Petkov | 5aeddf9 | 2008-10-13 21:39:34 +0200 | [diff] [blame] | 1776 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1777 | return cdrom_media_changed(&info->devinfo); |
| 1778 | } |
| 1779 | |
| 1780 | static int idecd_revalidate_disk(struct gendisk *disk) |
| 1781 | { |
Borislav Petkov | 5aeddf9 | 2008-10-13 21:39:34 +0200 | [diff] [blame] | 1782 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1783 | struct request_sense sense; |
Bartlomiej Zolnierkiewicz | 139c829 | 2008-02-01 23:09:24 +0100 | [diff] [blame] | 1784 | |
| 1785 | ide_cd_read_toc(info->drive, &sense); |
| 1786 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1787 | return 0; |
| 1788 | } |
| 1789 | |
| 1790 | static struct block_device_operations idecd_ops = { |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 1791 | .owner = THIS_MODULE, |
Al Viro | 488ca60 | 2008-03-02 10:26:23 -0500 | [diff] [blame] | 1792 | .open = idecd_open, |
| 1793 | .release = idecd_release, |
| 1794 | .locked_ioctl = idecd_ioctl, |
Paolo Ciarrocchi | 9ce70fb | 2008-04-26 17:36:42 +0200 | [diff] [blame] | 1795 | .media_changed = idecd_media_changed, |
| 1796 | .revalidate_disk = idecd_revalidate_disk |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1797 | }; |
| 1798 | |
Borislav Petkov | 5a3ea3b | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1799 | /* module options */ |
Borislav Petkov | 35d9b17 | 2008-10-13 21:39:49 +0200 | [diff] [blame] | 1800 | static unsigned long debug_mask; |
| 1801 | module_param(debug_mask, ulong, 0644); |
| 1802 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1803 | MODULE_DESCRIPTION("ATAPI CD-ROM Driver"); |
| 1804 | |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 1805 | static int ide_cd_probe(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1806 | { |
| 1807 | struct cdrom_info *info; |
| 1808 | struct gendisk *g; |
| 1809 | struct request_sense sense; |
| 1810 | |
Borislav Petkov | 088b1b8 | 2009-01-02 13:34:47 +0100 | [diff] [blame] | 1811 | ide_debug_log(IDE_DBG_PROBE, "driver_req: %s, media: 0x%x", |
| 1812 | drive->driver_req, drive->media); |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1813 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1814 | if (!strstr("ide-cdrom", drive->driver_req)) |
| 1815 | goto failed; |
Bartlomiej Zolnierkiewicz | 2a92466 | 2008-10-10 22:39:24 +0200 | [diff] [blame] | 1816 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1817 | if (drive->media != ide_cdrom && drive->media != ide_optical) |
| 1818 | goto failed; |
Bartlomiej Zolnierkiewicz | 2a92466 | 2008-10-10 22:39:24 +0200 | [diff] [blame] | 1819 | |
Borislav Petkov | 35d9b17 | 2008-10-13 21:39:49 +0200 | [diff] [blame] | 1820 | drive->debug_mask = debug_mask; |
Borislav Petkov | d6251d4 | 2009-01-06 17:20:58 +0100 | [diff] [blame] | 1821 | drive->irq_handler = cdrom_newpc_intr; |
Borislav Petkov | 35d9b17 | 2008-10-13 21:39:49 +0200 | [diff] [blame] | 1822 | |
Deepak Saxena | f5e3c2f | 2005-11-07 01:01:25 -0800 | [diff] [blame] | 1823 | info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1824 | if (info == NULL) { |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1825 | printk(KERN_ERR PFX "%s: Can't allocate a cdrom structure\n", |
Borislav Petkov | 83c8565 | 2008-04-26 22:25:15 +0200 | [diff] [blame] | 1826 | drive->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1827 | goto failed; |
| 1828 | } |
| 1829 | |
| 1830 | g = alloc_disk(1 << PARTN_BITS); |
| 1831 | if (!g) |
| 1832 | goto out_free_cd; |
| 1833 | |
| 1834 | ide_init_disk(g, drive); |
| 1835 | |
Bartlomiej Zolnierkiewicz | 8fed436 | 2009-02-25 20:28:24 +0100 | [diff] [blame] | 1836 | info->dev.parent = &drive->gendev; |
| 1837 | info->dev.release = ide_cd_release; |
| 1838 | dev_set_name(&info->dev, dev_name(&drive->gendev)); |
| 1839 | |
| 1840 | if (device_register(&info->dev)) |
| 1841 | goto out_free_disk; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1842 | |
| 1843 | info->drive = drive; |
| 1844 | info->driver = &ide_cdrom_driver; |
| 1845 | info->disk = g; |
| 1846 | |
| 1847 | g->private_data = &info->driver; |
| 1848 | |
| 1849 | drive->driver_data = info; |
| 1850 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1851 | g->minors = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1852 | g->driverfs_dev = &drive->gendev; |
| 1853 | g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE; |
| 1854 | if (ide_cdrom_setup(drive)) { |
Bartlomiej Zolnierkiewicz | 8fed436 | 2009-02-25 20:28:24 +0100 | [diff] [blame] | 1855 | put_device(&info->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1856 | goto failed; |
| 1857 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1858 | |
Bartlomiej Zolnierkiewicz | 139c829 | 2008-02-01 23:09:24 +0100 | [diff] [blame] | 1859 | ide_cd_read_toc(drive, &sense); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1860 | g->fops = &idecd_ops; |
| 1861 | g->flags |= GENHD_FL_REMOVABLE; |
| 1862 | add_disk(g); |
| 1863 | return 0; |
| 1864 | |
Bartlomiej Zolnierkiewicz | 8fed436 | 2009-02-25 20:28:24 +0100 | [diff] [blame] | 1865 | out_free_disk: |
| 1866 | put_disk(g); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1867 | out_free_cd: |
| 1868 | kfree(info); |
| 1869 | failed: |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1870 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1871 | } |
| 1872 | |
| 1873 | static void __exit ide_cdrom_exit(void) |
| 1874 | { |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1875 | driver_unregister(&ide_cdrom_driver.gen_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1876 | } |
Bartlomiej Zolnierkiewicz | 17514e8 | 2005-11-19 22:24:35 +0100 | [diff] [blame] | 1877 | |
| 1878 | static int __init ide_cdrom_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1879 | { |
Borislav Petkov | fc8323f | 2008-10-13 21:39:48 +0200 | [diff] [blame] | 1880 | printk(KERN_INFO DRV_NAME " driver " IDECD_VERSION "\n"); |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1881 | return driver_register(&ide_cdrom_driver.gen_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1882 | } |
| 1883 | |
Kay Sievers | 263756e | 2005-12-12 18:03:44 +0100 | [diff] [blame] | 1884 | MODULE_ALIAS("ide:*m-cdrom*"); |
Bartlomiej Zolnierkiewicz | 972560f | 2008-02-01 23:09:23 +0100 | [diff] [blame] | 1885 | MODULE_ALIAS("ide-cd"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1886 | module_init(ide_cdrom_init); |
| 1887 | module_exit(ide_cdrom_exit); |
| 1888 | MODULE_LICENSE("GPL"); |