Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Bartlomiej Zolnierkiewicz | 59bca8c | 2008-02-01 23:09:33 +0100 | [diff] [blame] | 2 | * Copyright (C) 1994-1998 Linus Torvalds & authors (see below) |
| 3 | * Copyright (C) 1998-2002 Linux ATA Development |
| 4 | * Andre Hedrick <andre@linux-ide.org> |
Alan Cox | ccd32e2 | 2008-11-02 21:40:08 +0100 | [diff] [blame] | 5 | * Copyright (C) 2003 Red Hat |
Bartlomiej Zolnierkiewicz | 59bca8c | 2008-02-01 23:09:33 +0100 | [diff] [blame] | 6 | * Copyright (C) 2003-2005, 2007 Bartlomiej Zolnierkiewicz |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | */ |
| 8 | |
| 9 | /* |
| 10 | * Mostly written by Mark Lord <mlord@pobox.com> |
| 11 | * and Gadi Oxman <gadio@netvision.net.il> |
| 12 | * and Andre Hedrick <andre@linux-ide.org> |
| 13 | * |
| 14 | * This is the IDE/ATA disk driver, as evolved from hd.c and ide.c. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | */ |
| 16 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | #include <linux/types.h> |
| 18 | #include <linux/string.h> |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/timer.h> |
| 21 | #include <linux/mm.h> |
| 22 | #include <linux/interrupt.h> |
| 23 | #include <linux/major.h> |
| 24 | #include <linux/errno.h> |
| 25 | #include <linux/genhd.h> |
| 26 | #include <linux/slab.h> |
| 27 | #include <linux/delay.h> |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 28 | #include <linux/mutex.h> |
Richard Purdie | 2bfb646 | 2006-03-31 02:31:16 -0800 | [diff] [blame] | 29 | #include <linux/leds.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include <linux/ide.h> |
| 31 | |
| 32 | #include <asm/byteorder.h> |
| 33 | #include <asm/irq.h> |
| 34 | #include <asm/uaccess.h> |
| 35 | #include <asm/io.h> |
| 36 | #include <asm/div64.h> |
| 37 | |
Bartlomiej Zolnierkiewicz | f879048 | 2008-10-13 21:39:45 +0200 | [diff] [blame] | 38 | #include "ide-disk.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | |
Bartlomiej Zolnierkiewicz | ba76ae3 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 40 | static const u8 ide_rw_cmds[] = { |
Bartlomiej Zolnierkiewicz | aaaade3 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 41 | ATA_CMD_READ_MULTI, |
| 42 | ATA_CMD_WRITE_MULTI, |
| 43 | ATA_CMD_READ_MULTI_EXT, |
| 44 | ATA_CMD_WRITE_MULTI_EXT, |
| 45 | ATA_CMD_PIO_READ, |
| 46 | ATA_CMD_PIO_WRITE, |
| 47 | ATA_CMD_PIO_READ_EXT, |
| 48 | ATA_CMD_PIO_WRITE_EXT, |
| 49 | ATA_CMD_READ, |
| 50 | ATA_CMD_WRITE, |
| 51 | ATA_CMD_READ_EXT, |
| 52 | ATA_CMD_WRITE_EXT, |
Bartlomiej Zolnierkiewicz | ba76ae3 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 53 | }; |
| 54 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 55 | static void ide_tf_set_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 dma) |
Bartlomiej Zolnierkiewicz | ba76ae3 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 56 | { |
| 57 | u8 index, lba48, write; |
| 58 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 59 | lba48 = (cmd->tf_flags & IDE_TFLAG_LBA48) ? 2 : 0; |
| 60 | write = (cmd->tf_flags & IDE_TFLAG_WRITE) ? 1 : 0; |
Bartlomiej Zolnierkiewicz | ba76ae3 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 61 | |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 62 | if (dma) { |
| 63 | cmd->protocol = ATA_PROT_DMA; |
Bartlomiej Zolnierkiewicz | ba4b2e6 | 2008-07-23 19:55:55 +0200 | [diff] [blame] | 64 | index = 8; |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 65 | } else { |
| 66 | cmd->protocol = ATA_PROT_PIO; |
| 67 | if (drive->mult_count) { |
| 68 | cmd->tf_flags |= IDE_TFLAG_MULTI_PIO; |
| 69 | index = 0; |
| 70 | } else |
| 71 | index = 4; |
| 72 | } |
Bartlomiej Zolnierkiewicz | ba76ae3 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 73 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 74 | cmd->tf.command = ide_rw_cmds[index + lba48 + write]; |
Bartlomiej Zolnierkiewicz | ba76ae3 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 75 | } |
| 76 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | /* |
| 78 | * __ide_do_rw_disk() issues READ and WRITE commands to a disk, |
| 79 | * using LBA if supported, or CHS otherwise, to address sectors. |
| 80 | */ |
Bartlomiej Zolnierkiewicz | 9841654 | 2008-04-26 17:36:37 +0200 | [diff] [blame] | 81 | static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq, |
| 82 | sector_t block) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | { |
Bartlomiej Zolnierkiewicz | 898ec22 | 2009-01-06 17:20:52 +0100 | [diff] [blame] | 84 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | 790d123 | 2008-01-25 22:17:12 +0100 | [diff] [blame] | 85 | u16 nsectors = (u16)rq->nr_sectors; |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 86 | u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48); |
| 87 | u8 dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 88 | struct ide_cmd cmd; |
| 89 | struct ide_taskfile *tf = &cmd.tf; |
Bartlomiej Zolnierkiewicz | f6e29e3 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 90 | ide_startstop_t rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | |
Bartlomiej Zolnierkiewicz | 238e4f1 | 2007-10-19 00:30:07 +0200 | [diff] [blame] | 92 | if ((hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA) && lba48 && dma) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | if (block + rq->nr_sectors > 1ULL << 28) |
| 94 | dma = 0; |
| 95 | else |
| 96 | lba48 = 0; |
| 97 | } |
| 98 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 99 | memset(&cmd, 0, sizeof(cmd)); |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 100 | cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; |
| 101 | cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; |
Bartlomiej Zolnierkiewicz | 2bd06b2 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 102 | |
Bartlomiej Zolnierkiewicz | d1d7671 | 2008-10-13 21:39:38 +0200 | [diff] [blame] | 103 | if (drive->dev_flags & IDE_DFLAG_LBA) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | if (lba48) { |
Michael Richardson | c2f8311 | 2006-02-07 12:58:33 -0800 | [diff] [blame] | 105 | pr_debug("%s: LBA=0x%012llx\n", drive->name, |
| 106 | (unsigned long long)block); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | |
Bartlomiej Zolnierkiewicz | 790d123 | 2008-01-25 22:17:12 +0100 | [diff] [blame] | 108 | tf->nsect = nsectors & 0xff; |
Bartlomiej Zolnierkiewicz | 2bd06b2 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 109 | tf->lbal = (u8) block; |
| 110 | tf->lbam = (u8)(block >> 8); |
| 111 | tf->lbah = (u8)(block >> 16); |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 112 | tf->device = ATA_LBA; |
| 113 | |
| 114 | tf = &cmd.hob; |
| 115 | tf->nsect = (nsectors >> 8) & 0xff; |
| 116 | tf->lbal = (u8)(block >> 24); |
| 117 | if (sizeof(block) != 4) { |
| 118 | tf->lbam = (u8)((u64)block >> 32); |
| 119 | tf->lbah = (u8)((u64)block >> 40); |
| 120 | } |
Bartlomiej Zolnierkiewicz | 6dd9b83 | 2008-01-26 20:13:03 +0100 | [diff] [blame] | 121 | |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 122 | cmd.valid.out.hob = IDE_VALID_OUT_HOB; |
| 123 | cmd.valid.in.hob = IDE_VALID_IN_HOB; |
| 124 | cmd.tf_flags |= IDE_TFLAG_LBA48; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | } else { |
Bartlomiej Zolnierkiewicz | 790d123 | 2008-01-25 22:17:12 +0100 | [diff] [blame] | 126 | tf->nsect = nsectors & 0xff; |
Bartlomiej Zolnierkiewicz | 2bd06b2 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 127 | tf->lbal = block; |
| 128 | tf->lbam = block >>= 8; |
| 129 | tf->lbah = block >>= 8; |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 130 | tf->device = ((block >> 8) & 0xf) | ATA_LBA; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | } |
| 132 | } else { |
Bartlomiej Zolnierkiewicz | 9841654 | 2008-04-26 17:36:37 +0200 | [diff] [blame] | 133 | unsigned int sect, head, cyl, track; |
| 134 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | track = (int)block / drive->sect; |
| 136 | sect = (int)block % drive->sect + 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | head = track % drive->head; |
| 138 | cyl = track / drive->head; |
| 139 | |
| 140 | pr_debug("%s: CHS=%u/%u/%u\n", drive->name, cyl, head, sect); |
| 141 | |
Bartlomiej Zolnierkiewicz | 790d123 | 2008-01-25 22:17:12 +0100 | [diff] [blame] | 142 | tf->nsect = nsectors & 0xff; |
Bartlomiej Zolnierkiewicz | 2bd06b2 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 143 | tf->lbal = sect; |
| 144 | tf->lbam = cyl; |
| 145 | tf->lbah = cyl >> 8; |
| 146 | tf->device = head; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | } |
| 148 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 149 | cmd.tf_flags |= IDE_TFLAG_FS; |
| 150 | |
Bartlomiej Zolnierkiewicz | ba76ae3 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 151 | if (rq_data_dir(rq)) |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 152 | cmd.tf_flags |= IDE_TFLAG_WRITE; |
Bartlomiej Zolnierkiewicz | ba76ae3 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 153 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 154 | ide_tf_set_cmd(drive, &cmd, dma); |
| 155 | cmd.rq = rq; |
Bartlomiej Zolnierkiewicz | ba76ae3 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 156 | |
Bartlomiej Zolnierkiewicz | 22981694 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 157 | if (dma == 0) { |
Bartlomiej Zolnierkiewicz | bf717c0 | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 158 | ide_init_sg_cmd(&cmd, nsectors << 9); |
Bartlomiej Zolnierkiewicz | 22981694 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 159 | ide_map_sg(drive, &cmd); |
| 160 | } |
| 161 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 162 | rc = do_rw_taskfile(drive, &cmd); |
Bartlomiej Zolnierkiewicz | 2bd06b2 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 163 | |
Bartlomiej Zolnierkiewicz | f6e29e3 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 164 | if (rc == ide_stopped && dma) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | /* fallback to PIO */ |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 166 | cmd.tf_flags |= IDE_TFLAG_DMA_PIO_FALLBACK; |
| 167 | ide_tf_set_cmd(drive, &cmd, 0); |
Bartlomiej Zolnierkiewicz | bf717c0 | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 168 | ide_init_sg_cmd(&cmd, nsectors << 9); |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 169 | rc = do_rw_taskfile(drive, &cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | } |
| 171 | |
Bartlomiej Zolnierkiewicz | f6e29e3 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 172 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | } |
| 174 | |
| 175 | /* |
| 176 | * 268435455 == 137439 MB or 28bit limit |
| 177 | * 320173056 == 163929 MB or 48bit addressing |
| 178 | * 1073741822 == 549756 MB or 48bit addressing fake drive |
| 179 | */ |
| 180 | |
Bartlomiej Zolnierkiewicz | 806f80a | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 181 | static ide_startstop_t ide_do_rw_disk(ide_drive_t *drive, struct request *rq, |
| 182 | sector_t block) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | { |
Bartlomiej Zolnierkiewicz | 898ec22 | 2009-01-06 17:20:52 +0100 | [diff] [blame] | 184 | ide_hwif_t *hwif = drive->hwif; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 186 | BUG_ON(drive->dev_flags & IDE_DFLAG_BLOCKED); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | |
| 188 | if (!blk_fs_request(rq)) { |
| 189 | blk_dump_rq_flags(rq, "ide_do_rw_disk - bad command"); |
Bartlomiej Zolnierkiewicz | 89f78b3 | 2009-03-27 12:46:43 +0100 | [diff] [blame] | 190 | if (rq->errors == 0) |
| 191 | rq->errors = -EIO; |
Bartlomiej Zolnierkiewicz | 130e886 | 2009-03-27 12:46:45 +0100 | [diff] [blame] | 192 | ide_complete_rq(drive, -EIO, ide_rq_bytes(rq)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | return ide_stopped; |
| 194 | } |
| 195 | |
Richard Purdie | 2bfb646 | 2006-03-31 02:31:16 -0800 | [diff] [blame] | 196 | ledtrig_ide_activity(); |
| 197 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | pr_debug("%s: %sing: block=%llu, sectors=%lu, buffer=0x%08lx\n", |
| 199 | drive->name, rq_data_dir(rq) == READ ? "read" : "writ", |
Michael Richardson | c2f8311 | 2006-02-07 12:58:33 -0800 | [diff] [blame] | 200 | (unsigned long long)block, rq->nr_sectors, |
| 201 | (unsigned long)rq->buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | |
| 203 | if (hwif->rw_disk) |
| 204 | hwif->rw_disk(drive, rq); |
| 205 | |
| 206 | return __ide_do_rw_disk(drive, rq, block); |
| 207 | } |
| 208 | |
| 209 | /* |
| 210 | * Queries for true maximum capacity of the drive. |
| 211 | * Returns maximum LBA address (> 0) of the drive, 0 if failed. |
| 212 | */ |
Bartlomiej Zolnierkiewicz | 7a3b751 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 213 | static u64 idedisk_read_native_max_address(ide_drive_t *drive, int lba48) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | { |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 215 | struct ide_cmd cmd; |
| 216 | struct ide_taskfile *tf = &cmd.tf; |
Bartlomiej Zolnierkiewicz | 7a3b751 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 217 | u64 addr = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 219 | memset(&cmd, 0, sizeof(cmd)); |
Bartlomiej Zolnierkiewicz | 7a3b751 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 220 | if (lba48) |
Bartlomiej Zolnierkiewicz | aaaade3 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 221 | tf->command = ATA_CMD_READ_NATIVE_MAX_EXT; |
Bartlomiej Zolnierkiewicz | 7a3b751 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 222 | else |
Bartlomiej Zolnierkiewicz | aaaade3 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 223 | tf->command = ATA_CMD_READ_NATIVE_MAX; |
Bartlomiej Zolnierkiewicz | 650d841 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 224 | tf->device = ATA_LBA; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 225 | |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 226 | cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; |
| 227 | cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; |
| 228 | if (lba48) { |
| 229 | cmd.valid.out.hob = IDE_VALID_OUT_HOB; |
| 230 | cmd.valid.in.hob = IDE_VALID_IN_HOB; |
| 231 | cmd.tf_flags = IDE_TFLAG_LBA48; |
| 232 | } |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 233 | |
| 234 | ide_no_data_taskfile(drive, &cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | |
| 236 | /* if OK, compute maximum address value */ |
Sergei Shtylyov | 47ab834 | 2009-03-31 20:15:29 +0200 | [diff] [blame] | 237 | if (!(tf->status & ATA_ERR)) |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 238 | addr = ide_get_lba_addr(&cmd, lba48) + 1; |
Bartlomiej Zolnierkiewicz | 650d841 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 239 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | return addr; |
| 241 | } |
| 242 | |
| 243 | /* |
| 244 | * Sets maximum virtual LBA address of the drive. |
| 245 | * Returns new maximum virtual LBA address (> 0) or 0 on failure. |
| 246 | */ |
Bartlomiej Zolnierkiewicz | 7a3b751 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 247 | static u64 idedisk_set_max_address(ide_drive_t *drive, u64 addr_req, int lba48) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | { |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 249 | struct ide_cmd cmd; |
| 250 | struct ide_taskfile *tf = &cmd.tf; |
Bartlomiej Zolnierkiewicz | 7a3b751 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 251 | u64 addr_set = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | |
| 253 | addr_req--; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 254 | |
| 255 | memset(&cmd, 0, sizeof(cmd)); |
Bartlomiej Zolnierkiewicz | 650d841 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 256 | tf->lbal = (addr_req >> 0) & 0xff; |
| 257 | tf->lbam = (addr_req >>= 8) & 0xff; |
| 258 | tf->lbah = (addr_req >>= 8) & 0xff; |
Bartlomiej Zolnierkiewicz | 7a3b751 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 259 | if (lba48) { |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 260 | cmd.hob.lbal = (addr_req >>= 8) & 0xff; |
| 261 | cmd.hob.lbam = (addr_req >>= 8) & 0xff; |
| 262 | cmd.hob.lbah = (addr_req >>= 8) & 0xff; |
Bartlomiej Zolnierkiewicz | aaaade3 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 263 | tf->command = ATA_CMD_SET_MAX_EXT; |
Bartlomiej Zolnierkiewicz | 7a3b751 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 264 | } else { |
| 265 | tf->device = (addr_req >>= 8) & 0x0f; |
Bartlomiej Zolnierkiewicz | aaaade3 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 266 | tf->command = ATA_CMD_SET_MAX; |
Bartlomiej Zolnierkiewicz | 7a3b751 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 267 | } |
| 268 | tf->device |= ATA_LBA; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 269 | |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 270 | cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; |
| 271 | cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; |
| 272 | if (lba48) { |
| 273 | cmd.valid.out.hob = IDE_VALID_OUT_HOB; |
| 274 | cmd.valid.in.hob = IDE_VALID_IN_HOB; |
| 275 | cmd.tf_flags = IDE_TFLAG_LBA48; |
| 276 | } |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 277 | |
| 278 | ide_no_data_taskfile(drive, &cmd); |
| 279 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | /* if OK, compute maximum address value */ |
Sergei Shtylyov | 47ab834 | 2009-03-31 20:15:29 +0200 | [diff] [blame] | 281 | if (!(tf->status & ATA_ERR)) |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 282 | addr_set = ide_get_lba_addr(&cmd, lba48) + 1; |
Bartlomiej Zolnierkiewicz | 650d841 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 283 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | return addr_set; |
| 285 | } |
| 286 | |
| 287 | static unsigned long long sectors_to_MB(unsigned long long n) |
| 288 | { |
| 289 | n <<= 9; /* make it bytes */ |
| 290 | do_div(n, 1000000); /* make it MB */ |
| 291 | return n; |
| 292 | } |
| 293 | |
| 294 | /* |
Bartlomiej Zolnierkiewicz | b0244a0 | 2007-08-20 22:42:57 +0200 | [diff] [blame] | 295 | * Some disks report total number of sectors instead of |
| 296 | * maximum sector address. We list them here. |
| 297 | */ |
| 298 | static const struct drive_list_entry hpa_list[] = { |
| 299 | { "ST340823A", NULL }, |
Jorge Juan Chico | 7062cdc | 2007-09-17 12:35:30 +0200 | [diff] [blame] | 300 | { "ST320413A", NULL }, |
Mikko Rapeli | b152fcd | 2008-02-19 01:41:25 +0100 | [diff] [blame] | 301 | { "ST310211A", NULL }, |
Bartlomiej Zolnierkiewicz | b0244a0 | 2007-08-20 22:42:57 +0200 | [diff] [blame] | 302 | { NULL, NULL } |
| 303 | }; |
| 304 | |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 305 | static void idedisk_check_hpa(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | { |
| 307 | unsigned long long capacity, set_max; |
Bartlomiej Zolnierkiewicz | 942dcd8 | 2008-10-10 22:39:30 +0200 | [diff] [blame] | 308 | int lba48 = ata_id_lba48_enabled(drive->id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | |
| 310 | capacity = drive->capacity64; |
Bartlomiej Zolnierkiewicz | 7a3b751 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 311 | |
| 312 | set_max = idedisk_read_native_max_address(drive, lba48); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | |
Bartlomiej Zolnierkiewicz | b0244a0 | 2007-08-20 22:42:57 +0200 | [diff] [blame] | 314 | if (ide_in_drive_list(drive->id, hpa_list)) { |
| 315 | /* |
| 316 | * Since we are inclusive wrt to firmware revisions do this |
| 317 | * extra check and apply the workaround only when needed. |
| 318 | */ |
| 319 | if (set_max == capacity + 1) |
| 320 | set_max--; |
| 321 | } |
| 322 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | if (set_max <= capacity) |
| 324 | return; |
| 325 | |
| 326 | printk(KERN_INFO "%s: Host Protected Area detected.\n" |
| 327 | "\tcurrent capacity is %llu sectors (%llu MB)\n" |
| 328 | "\tnative capacity is %llu sectors (%llu MB)\n", |
| 329 | drive->name, |
| 330 | capacity, sectors_to_MB(capacity), |
| 331 | set_max, sectors_to_MB(set_max)); |
| 332 | |
Bartlomiej Zolnierkiewicz | 7a3b751 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 333 | set_max = idedisk_set_max_address(drive, set_max, lba48); |
| 334 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | if (set_max) { |
| 336 | drive->capacity64 = set_max; |
| 337 | printk(KERN_INFO "%s: Host Protected Area disabled.\n", |
| 338 | drive->name); |
| 339 | } |
| 340 | } |
| 341 | |
Bartlomiej Zolnierkiewicz | 806f80a | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 342 | static int ide_disk_get_capacity(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | { |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 344 | u16 *id = drive->id; |
Bartlomiej Zolnierkiewicz | d1d7671 | 2008-10-13 21:39:38 +0200 | [diff] [blame] | 345 | int lba; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | |
Bartlomiej Zolnierkiewicz | 942dcd8 | 2008-10-10 22:39:30 +0200 | [diff] [blame] | 347 | if (ata_id_lba48_enabled(id)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | /* drive speaks 48-bit LBA */ |
Bartlomiej Zolnierkiewicz | d1d7671 | 2008-10-13 21:39:38 +0200 | [diff] [blame] | 349 | lba = 1; |
Bartlomiej Zolnierkiewicz | 48fb268 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 350 | drive->capacity64 = ata_id_u64(id, ATA_ID_LBA_CAPACITY_2); |
Bartlomiej Zolnierkiewicz | a02227c | 2008-10-10 22:39:31 +0200 | [diff] [blame] | 351 | } else if (ata_id_has_lba(id) && ata_id_is_lba_capacity_ok(id)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | /* drive speaks 28-bit LBA */ |
Bartlomiej Zolnierkiewicz | d1d7671 | 2008-10-13 21:39:38 +0200 | [diff] [blame] | 353 | lba = 1; |
Bartlomiej Zolnierkiewicz | 48fb268 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 354 | drive->capacity64 = ata_id_u32(id, ATA_ID_LBA_CAPACITY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | } else { |
| 356 | /* drive speaks boring old 28-bit CHS */ |
Bartlomiej Zolnierkiewicz | d1d7671 | 2008-10-13 21:39:38 +0200 | [diff] [blame] | 357 | lba = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | drive->capacity64 = drive->cyl * drive->head * drive->sect; |
| 359 | } |
Bartlomiej Zolnierkiewicz | d1d7671 | 2008-10-13 21:39:38 +0200 | [diff] [blame] | 360 | |
| 361 | if (lba) { |
| 362 | drive->dev_flags |= IDE_DFLAG_LBA; |
| 363 | |
| 364 | /* |
| 365 | * If this device supports the Host Protected Area feature set, |
| 366 | * then we may need to change our opinion about its capacity. |
| 367 | */ |
| 368 | if (ata_id_hpa_enabled(id)) |
| 369 | idedisk_check_hpa(drive); |
| 370 | } |
Bartlomiej Zolnierkiewicz | 0a70c7f | 2008-10-17 18:09:09 +0200 | [diff] [blame] | 371 | |
| 372 | /* limit drive capacity to 137GB if LBA48 cannot be used */ |
| 373 | if ((drive->dev_flags & IDE_DFLAG_LBA48) == 0 && |
| 374 | drive->capacity64 > 1ULL << 28) { |
| 375 | printk(KERN_WARNING "%s: cannot use LBA48 - full capacity " |
| 376 | "%llu sectors (%llu MB)\n", |
| 377 | drive->name, (unsigned long long)drive->capacity64, |
| 378 | sectors_to_MB(drive->capacity64)); |
| 379 | drive->capacity64 = 1ULL << 28; |
| 380 | } |
| 381 | |
| 382 | if ((drive->hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA) && |
| 383 | (drive->dev_flags & IDE_DFLAG_LBA48)) { |
| 384 | if (drive->capacity64 > 1ULL << 28) { |
| 385 | printk(KERN_INFO "%s: cannot use LBA48 DMA - PIO mode" |
| 386 | " will be used for accessing sectors " |
| 387 | "> %u\n", drive->name, 1 << 28); |
| 388 | } else |
| 389 | drive->dev_flags &= ~IDE_DFLAG_LBA48; |
| 390 | } |
Bartlomiej Zolnierkiewicz | 806f80a | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 391 | |
| 392 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | } |
| 394 | |
Jens Axboe | 165125e | 2007-07-24 09:28:11 +0200 | [diff] [blame] | 395 | static void idedisk_prepare_flush(struct request_queue *q, struct request *rq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | { |
| 397 | ide_drive_t *drive = q->queuedata; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 398 | struct ide_cmd *cmd = kmalloc(sizeof(*cmd), GFP_ATOMIC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | |
Bartlomiej Zolnierkiewicz | 395d8ef | 2008-02-11 00:32:14 +0100 | [diff] [blame] | 400 | /* FIXME: map struct ide_taskfile on rq->cmd[] */ |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 401 | BUG_ON(cmd == NULL); |
Bartlomiej Zolnierkiewicz | 395d8ef | 2008-02-11 00:32:14 +0100 | [diff] [blame] | 402 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 403 | memset(cmd, 0, sizeof(*cmd)); |
Bartlomiej Zolnierkiewicz | ff2779b | 2008-10-10 22:39:31 +0200 | [diff] [blame] | 404 | if (ata_id_flush_ext_enabled(drive->id) && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | (drive->capacity64 >= (1UL << 28))) |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 406 | cmd->tf.command = ATA_CMD_FLUSH_EXT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | else |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 408 | cmd->tf.command = ATA_CMD_FLUSH; |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 409 | cmd->valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; |
| 410 | cmd->tf_flags = IDE_TFLAG_DYN; |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 411 | cmd->protocol = ATA_PROT_NODATA; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | |
Bartlomiej Zolnierkiewicz | 813a0eb | 2008-01-25 22:17:10 +0100 | [diff] [blame] | 413 | rq->cmd_type = REQ_TYPE_ATA_TASKFILE; |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 414 | rq->cmd_flags |= REQ_SOFTBARRIER; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 415 | rq->special = cmd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | } |
| 417 | |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 418 | ide_devset_get(multcount, mult_count); |
| 419 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | /* |
| 421 | * This is tightly woven into the driver->do_special can not touch. |
| 422 | * DON'T do it again until a total personality rewrite is committed. |
| 423 | */ |
| 424 | static int set_multcount(ide_drive_t *drive, int arg) |
| 425 | { |
FUJITA Tomonori | dd47087 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 426 | struct request *rq; |
| 427 | int error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | |
Bartlomiej Zolnierkiewicz | 48fb268 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 429 | if (arg < 0 || arg > (drive->id[ATA_ID_MAX_MULTSECT] & 0xff)) |
Bartlomiej Zolnierkiewicz | 1497943 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 430 | return -EINVAL; |
| 431 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | if (drive->special.b.set_multmode) |
| 433 | return -EBUSY; |
Bartlomiej Zolnierkiewicz | 852738f | 2008-01-26 20:13:12 +0100 | [diff] [blame] | 434 | |
FUJITA Tomonori | dd47087 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 435 | rq = blk_get_request(drive->queue, READ, __GFP_WAIT); |
| 436 | rq->cmd_type = REQ_TYPE_ATA_TASKFILE; |
Bartlomiej Zolnierkiewicz | 852738f | 2008-01-26 20:13:12 +0100 | [diff] [blame] | 437 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | drive->mult_req = arg; |
| 439 | drive->special.b.set_multmode = 1; |
FUJITA Tomonori | dd47087 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 440 | error = blk_execute_rq(drive->queue, NULL, rq, 0); |
| 441 | blk_put_request(rq); |
Bartlomiej Zolnierkiewicz | 9841654 | 2008-04-26 17:36:37 +0200 | [diff] [blame] | 442 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | return (drive->mult_count == arg) ? 0 : -EIO; |
| 444 | } |
| 445 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 446 | ide_devset_get_flag(nowerr, IDE_DFLAG_NOWERR); |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 447 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | static int set_nowerr(ide_drive_t *drive, int arg) |
| 449 | { |
Bartlomiej Zolnierkiewicz | 1497943 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 450 | if (arg < 0 || arg > 1) |
| 451 | return -EINVAL; |
| 452 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 453 | if (arg) |
| 454 | drive->dev_flags |= IDE_DFLAG_NOWERR; |
| 455 | else |
| 456 | drive->dev_flags &= ~IDE_DFLAG_NOWERR; |
| 457 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | drive->bad_wstat = arg ? BAD_R_STAT : BAD_W_STAT; |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 459 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | return 0; |
| 461 | } |
| 462 | |
Bartlomiej Zolnierkiewicz | be3c096 | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 463 | static int ide_do_setfeature(ide_drive_t *drive, u8 feature, u8 nsect) |
| 464 | { |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 465 | struct ide_cmd cmd; |
Bartlomiej Zolnierkiewicz | be3c096 | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 466 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 467 | memset(&cmd, 0, sizeof(cmd)); |
| 468 | cmd.tf.feature = feature; |
| 469 | cmd.tf.nsect = nsect; |
| 470 | cmd.tf.command = ATA_CMD_SET_FEATURES; |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 471 | cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; |
| 472 | cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; |
Bartlomiej Zolnierkiewicz | be3c096 | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 473 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 474 | return ide_no_data_taskfile(drive, &cmd); |
Bartlomiej Zolnierkiewicz | be3c096 | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 475 | } |
| 476 | |
Tejun Heo | 3e087b5 | 2006-01-06 09:57:31 +0100 | [diff] [blame] | 477 | static void update_ordered(ide_drive_t *drive) |
| 478 | { |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 479 | u16 *id = drive->id; |
Tejun Heo | 3e087b5 | 2006-01-06 09:57:31 +0100 | [diff] [blame] | 480 | unsigned ordered = QUEUE_ORDERED_NONE; |
| 481 | prepare_flush_fn *prep_fn = NULL; |
Tejun Heo | 3e087b5 | 2006-01-06 09:57:31 +0100 | [diff] [blame] | 482 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 483 | if (drive->dev_flags & IDE_DFLAG_WCACHE) { |
Tejun Heo | 3e087b5 | 2006-01-06 09:57:31 +0100 | [diff] [blame] | 484 | unsigned long long capacity; |
| 485 | int barrier; |
| 486 | /* |
| 487 | * We must avoid issuing commands a drive does not |
| 488 | * understand or we may crash it. We check flush cache |
| 489 | * is supported. We also check we have the LBA48 flush |
| 490 | * cache if the drive capacity is too large. By this |
| 491 | * time we have trimmed the drive capacity if LBA48 is |
| 492 | * not available so we don't need to recheck that. |
| 493 | */ |
Bartlomiej Zolnierkiewicz | 5fef0e5 | 2008-10-17 18:09:12 +0200 | [diff] [blame] | 494 | capacity = ide_gd_capacity(drive); |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 495 | barrier = ata_id_flush_enabled(id) && |
| 496 | (drive->dev_flags & IDE_DFLAG_NOFLUSH) == 0 && |
| 497 | ((drive->dev_flags & IDE_DFLAG_LBA48) == 0 || |
| 498 | capacity <= (1ULL << 28) || |
Bartlomiej Zolnierkiewicz | ff2779b | 2008-10-10 22:39:31 +0200 | [diff] [blame] | 499 | ata_id_flush_ext_enabled(id)); |
Tejun Heo | 3e087b5 | 2006-01-06 09:57:31 +0100 | [diff] [blame] | 500 | |
| 501 | printk(KERN_INFO "%s: cache flushes %ssupported\n", |
Jean Delvare | f7ad836 | 2006-02-03 03:04:57 -0800 | [diff] [blame] | 502 | drive->name, barrier ? "" : "not "); |
Tejun Heo | 3e087b5 | 2006-01-06 09:57:31 +0100 | [diff] [blame] | 503 | |
| 504 | if (barrier) { |
| 505 | ordered = QUEUE_ORDERED_DRAIN_FLUSH; |
| 506 | prep_fn = idedisk_prepare_flush; |
Tejun Heo | 3e087b5 | 2006-01-06 09:57:31 +0100 | [diff] [blame] | 507 | } |
| 508 | } else |
| 509 | ordered = QUEUE_ORDERED_DRAIN; |
| 510 | |
| 511 | blk_queue_ordered(drive->queue, ordered, prep_fn); |
Tejun Heo | 3e087b5 | 2006-01-06 09:57:31 +0100 | [diff] [blame] | 512 | } |
| 513 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 514 | ide_devset_get_flag(wcache, IDE_DFLAG_WCACHE); |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 515 | |
| 516 | static int set_wcache(ide_drive_t *drive, int arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | { |
Tejun Heo | 3e087b5 | 2006-01-06 09:57:31 +0100 | [diff] [blame] | 518 | int err = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | |
Bartlomiej Zolnierkiewicz | 1497943 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 520 | if (arg < 0 || arg > 1) |
| 521 | return -EINVAL; |
| 522 | |
Bartlomiej Zolnierkiewicz | 4b58f17 | 2008-10-10 22:39:30 +0200 | [diff] [blame] | 523 | if (ata_id_flush_enabled(drive->id)) { |
Bartlomiej Zolnierkiewicz | be3c096 | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 524 | err = ide_do_setfeature(drive, |
| 525 | arg ? SETFEATURES_WC_ON : SETFEATURES_WC_OFF, 0); |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 526 | if (err == 0) { |
| 527 | if (arg) |
| 528 | drive->dev_flags |= IDE_DFLAG_WCACHE; |
| 529 | else |
| 530 | drive->dev_flags &= ~IDE_DFLAG_WCACHE; |
| 531 | } |
Tejun Heo | 3e087b5 | 2006-01-06 09:57:31 +0100 | [diff] [blame] | 532 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | |
Tejun Heo | 3e087b5 | 2006-01-06 09:57:31 +0100 | [diff] [blame] | 534 | update_ordered(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | |
Tejun Heo | 3e087b5 | 2006-01-06 09:57:31 +0100 | [diff] [blame] | 536 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | } |
| 538 | |
Bartlomiej Zolnierkiewicz | 9841654 | 2008-04-26 17:36:37 +0200 | [diff] [blame] | 539 | static int do_idedisk_flushcache(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 540 | { |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 541 | struct ide_cmd cmd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 542 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 543 | memset(&cmd, 0, sizeof(cmd)); |
Bartlomiej Zolnierkiewicz | ff2779b | 2008-10-10 22:39:31 +0200 | [diff] [blame] | 544 | if (ata_id_flush_ext_enabled(drive->id)) |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 545 | cmd.tf.command = ATA_CMD_FLUSH_EXT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | else |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 547 | cmd.tf.command = ATA_CMD_FLUSH; |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 548 | cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; |
| 549 | cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 550 | |
| 551 | return ide_no_data_taskfile(drive, &cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | } |
| 553 | |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 554 | ide_devset_get(acoustic, acoustic); |
| 555 | |
Bartlomiej Zolnierkiewicz | 9841654 | 2008-04-26 17:36:37 +0200 | [diff] [blame] | 556 | static int set_acoustic(ide_drive_t *drive, int arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | { |
Bartlomiej Zolnierkiewicz | 1497943 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 558 | if (arg < 0 || arg > 254) |
| 559 | return -EINVAL; |
| 560 | |
Bartlomiej Zolnierkiewicz | be3c096 | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 561 | ide_do_setfeature(drive, |
| 562 | arg ? SETFEATURES_AAM_ON : SETFEATURES_AAM_OFF, arg); |
| 563 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | drive->acoustic = arg; |
Bartlomiej Zolnierkiewicz | be3c096 | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 565 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | return 0; |
| 567 | } |
| 568 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 569 | ide_devset_get_flag(addressing, IDE_DFLAG_LBA48); |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 570 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | /* |
| 572 | * drive->addressing: |
| 573 | * 0: 28-bit |
| 574 | * 1: 48-bit |
| 575 | * 2: 48-bit capable doing 28-bit |
| 576 | */ |
Bartlomiej Zolnierkiewicz | aa768773 | 2008-10-10 22:39:33 +0200 | [diff] [blame] | 577 | static int set_addressing(ide_drive_t *drive, int arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | { |
Bartlomiej Zolnierkiewicz | 1497943 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 579 | if (arg < 0 || arg > 2) |
| 580 | return -EINVAL; |
| 581 | |
Bartlomiej Zolnierkiewicz | 35c1375 | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 582 | if (arg && ((drive->hwif->host_flags & IDE_HFLAG_NO_LBA48) || |
| 583 | ata_id_lba48_enabled(drive->id) == 0)) |
Bartlomiej Zolnierkiewicz | 9841654 | 2008-04-26 17:36:37 +0200 | [diff] [blame] | 584 | return -EIO; |
Bartlomiej Zolnierkiewicz | 942dcd8 | 2008-10-10 22:39:30 +0200 | [diff] [blame] | 585 | |
Bartlomiej Zolnierkiewicz | 35c1375 | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 586 | if (arg == 2) |
| 587 | arg = 0; |
| 588 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 589 | if (arg) |
| 590 | drive->dev_flags |= IDE_DFLAG_LBA48; |
| 591 | else |
| 592 | drive->dev_flags &= ~IDE_DFLAG_LBA48; |
Bartlomiej Zolnierkiewicz | 942dcd8 | 2008-10-10 22:39:30 +0200 | [diff] [blame] | 593 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | return 0; |
| 595 | } |
| 596 | |
Bartlomiej Zolnierkiewicz | f879048 | 2008-10-13 21:39:45 +0200 | [diff] [blame] | 597 | ide_ext_devset_rw(acoustic, acoustic); |
| 598 | ide_ext_devset_rw(address, addressing); |
| 599 | ide_ext_devset_rw(multcount, multcount); |
| 600 | ide_ext_devset_rw(wcache, wcache); |
Elias Oltmanns | 92f1f8f | 2008-10-10 22:39:40 +0200 | [diff] [blame] | 601 | |
Bartlomiej Zolnierkiewicz | f879048 | 2008-10-13 21:39:45 +0200 | [diff] [blame] | 602 | ide_ext_devset_rw_sync(nowerr, nowerr); |
Elias Oltmanns | 92f1f8f | 2008-10-10 22:39:40 +0200 | [diff] [blame] | 603 | |
Bartlomiej Zolnierkiewicz | 806f80a | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 604 | static int ide_disk_check(ide_drive_t *drive, const char *s) |
| 605 | { |
| 606 | return 1; |
| 607 | } |
| 608 | |
| 609 | static void ide_disk_setup(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 610 | { |
Bartlomiej Zolnierkiewicz | 1e874f4 | 2008-10-10 22:39:27 +0200 | [diff] [blame] | 611 | struct ide_disk_obj *idkp = drive->driver_data; |
Bartlomiej Zolnierkiewicz | c77380d | 2008-10-23 23:22:09 +0200 | [diff] [blame] | 612 | struct request_queue *q = drive->queue; |
Bartlomiej Zolnierkiewicz | 238e4f1 | 2007-10-19 00:30:07 +0200 | [diff] [blame] | 613 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 614 | u16 *id = drive->id; |
| 615 | char *m = (char *)&id[ATA_ID_PROD]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | unsigned long long capacity; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | |
Bartlomiej Zolnierkiewicz | 1e874f4 | 2008-10-10 22:39:27 +0200 | [diff] [blame] | 618 | ide_proc_register_driver(drive, idkp->driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 619 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 620 | if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | return; |
| 622 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 623 | if (drive->dev_flags & IDE_DFLAG_REMOVABLE) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | /* |
Bartlomiej Zolnierkiewicz | 9841654 | 2008-04-26 17:36:37 +0200 | [diff] [blame] | 625 | * Removable disks (eg. SYQUEST); ignore 'WD' drives |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | */ |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 627 | if (m[0] != 'W' || m[1] != 'D') |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 628 | drive->dev_flags |= IDE_DFLAG_DOORLOCKING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | } |
| 630 | |
Bartlomiej Zolnierkiewicz | aa768773 | 2008-10-10 22:39:33 +0200 | [diff] [blame] | 631 | (void)set_addressing(drive, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 633 | if (drive->dev_flags & IDE_DFLAG_LBA48) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | int max_s = 2048; |
| 635 | |
| 636 | if (max_s > hwif->rqsize) |
| 637 | max_s = hwif->rqsize; |
| 638 | |
Bartlomiej Zolnierkiewicz | c77380d | 2008-10-23 23:22:09 +0200 | [diff] [blame] | 639 | blk_queue_max_sectors(q, max_s); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | } |
| 641 | |
Bartlomiej Zolnierkiewicz | 9841654 | 2008-04-26 17:36:37 +0200 | [diff] [blame] | 642 | printk(KERN_INFO "%s: max request size: %dKiB\n", drive->name, |
Bartlomiej Zolnierkiewicz | c77380d | 2008-10-23 23:22:09 +0200 | [diff] [blame] | 643 | q->max_sectors / 2); |
| 644 | |
Bartlomiej Zolnierkiewicz | 655772c | 2009-01-14 19:19:03 +0100 | [diff] [blame] | 645 | if (ata_id_is_ssd(id)) |
Bartlomiej Zolnierkiewicz | c77380d | 2008-10-23 23:22:09 +0200 | [diff] [blame] | 646 | queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | |
| 648 | /* calculate drive capacity, and select LBA if possible */ |
Bartlomiej Zolnierkiewicz | 806f80a | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 649 | ide_disk_get_capacity(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 651 | /* |
| 652 | * if possible, give fdisk access to more of the drive, |
| 653 | * by correcting bios_cyls: |
| 654 | */ |
Bartlomiej Zolnierkiewicz | 5fef0e5 | 2008-10-17 18:09:12 +0200 | [diff] [blame] | 655 | capacity = ide_gd_capacity(drive); |
Bartlomiej Zolnierkiewicz | 9841654 | 2008-04-26 17:36:37 +0200 | [diff] [blame] | 656 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 657 | if ((drive->dev_flags & IDE_DFLAG_FORCED_GEOM) == 0) { |
Bartlomiej Zolnierkiewicz | 942dcd8 | 2008-10-10 22:39:30 +0200 | [diff] [blame] | 658 | if (ata_id_lba48_enabled(drive->id)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | /* compatibility */ |
| 660 | drive->bios_sect = 63; |
| 661 | drive->bios_head = 255; |
| 662 | } |
| 663 | |
| 664 | if (drive->bios_sect && drive->bios_head) { |
| 665 | unsigned int cap0 = capacity; /* truncate to 32 bits */ |
| 666 | unsigned int cylsz, cyl; |
| 667 | |
| 668 | if (cap0 != capacity) |
| 669 | drive->bios_cyl = 65535; |
| 670 | else { |
| 671 | cylsz = drive->bios_sect * drive->bios_head; |
| 672 | cyl = cap0 / cylsz; |
| 673 | if (cyl > 65535) |
| 674 | cyl = 65535; |
| 675 | if (cyl > drive->bios_cyl) |
| 676 | drive->bios_cyl = cyl; |
| 677 | } |
| 678 | } |
| 679 | } |
| 680 | printk(KERN_INFO "%s: %llu sectors (%llu MB)", |
| 681 | drive->name, capacity, sectors_to_MB(capacity)); |
| 682 | |
| 683 | /* Only print cache size when it was specified */ |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 684 | if (id[ATA_ID_BUF_SIZE]) |
| 685 | printk(KERN_CONT " w/%dKiB Cache", id[ATA_ID_BUF_SIZE] / 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | |
Bartlomiej Zolnierkiewicz | 3ab7efe | 2007-12-12 23:31:58 +0100 | [diff] [blame] | 687 | printk(KERN_CONT ", CHS=%d/%d/%d\n", |
| 688 | drive->bios_cyl, drive->bios_head, drive->bios_sect); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | /* write cache enabled? */ |
Bartlomiej Zolnierkiewicz | 8a089c6 | 2008-10-10 22:39:20 +0200 | [diff] [blame] | 691 | if ((id[ATA_ID_CSFO] & 1) || ata_id_wcache_enabled(id)) |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 692 | drive->dev_flags |= IDE_DFLAG_WCACHE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 693 | |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 694 | set_wcache(drive, 1); |
Bartlomiej Zolnierkiewicz | ae9f9f0 | 2008-10-17 18:09:10 +0200 | [diff] [blame] | 695 | |
| 696 | if ((drive->dev_flags & IDE_DFLAG_LBA) == 0 && |
| 697 | (drive->head == 0 || drive->head > 16)) { |
| 698 | printk(KERN_ERR "%s: invalid geometry: %d physical heads?\n", |
| 699 | drive->name, drive->head); |
| 700 | drive->dev_flags &= ~IDE_DFLAG_ATTACH; |
| 701 | } else |
| 702 | drive->dev_flags |= IDE_DFLAG_ATTACH; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | } |
| 704 | |
Bartlomiej Zolnierkiewicz | 806f80a | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 705 | static void ide_disk_flush(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 706 | { |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 707 | if (ata_id_flush_enabled(drive->id) == 0 || |
| 708 | (drive->dev_flags & IDE_DFLAG_WCACHE) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | return; |
| 710 | |
| 711 | if (do_idedisk_flushcache(drive)) |
| 712 | printk(KERN_INFO "%s: wcache flush failed!\n", drive->name); |
| 713 | } |
| 714 | |
Bartlomiej Zolnierkiewicz | 806f80a | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 715 | static int ide_disk_init_media(ide_drive_t *drive, struct gendisk *disk) |
| 716 | { |
| 717 | return 0; |
| 718 | } |
| 719 | |
| 720 | static int ide_disk_set_doorlock(ide_drive_t *drive, struct gendisk *disk, |
| 721 | int on) |
Bartlomiej Zolnierkiewicz | 29ec683 | 2008-01-26 20:12:59 +0100 | [diff] [blame] | 722 | { |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 723 | struct ide_cmd cmd; |
Bartlomiej Zolnierkiewicz | 81ee1bb | 2008-10-17 18:09:10 +0200 | [diff] [blame] | 724 | int ret; |
| 725 | |
| 726 | if ((drive->dev_flags & IDE_DFLAG_DOORLOCKING) == 0) |
| 727 | return 0; |
Bartlomiej Zolnierkiewicz | 29ec683 | 2008-01-26 20:12:59 +0100 | [diff] [blame] | 728 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 729 | memset(&cmd, 0, sizeof(cmd)); |
| 730 | cmd.tf.command = on ? ATA_CMD_MEDIA_LOCK : ATA_CMD_MEDIA_UNLOCK; |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 731 | cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; |
| 732 | cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; |
Bartlomiej Zolnierkiewicz | 29ec683 | 2008-01-26 20:12:59 +0100 | [diff] [blame] | 733 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 734 | ret = ide_no_data_taskfile(drive, &cmd); |
Bartlomiej Zolnierkiewicz | 81ee1bb | 2008-10-17 18:09:10 +0200 | [diff] [blame] | 735 | |
| 736 | if (ret) |
| 737 | drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; |
| 738 | |
| 739 | return ret; |
Bartlomiej Zolnierkiewicz | 29ec683 | 2008-01-26 20:12:59 +0100 | [diff] [blame] | 740 | } |
Bartlomiej Zolnierkiewicz | 806f80a | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 741 | |
| 742 | const struct ide_disk_ops ide_ata_disk_ops = { |
| 743 | .check = ide_disk_check, |
| 744 | .get_capacity = ide_disk_get_capacity, |
| 745 | .setup = ide_disk_setup, |
| 746 | .flush = ide_disk_flush, |
| 747 | .init_media = ide_disk_init_media, |
| 748 | .set_doorlock = ide_disk_set_doorlock, |
| 749 | .do_request = ide_do_rw_disk, |
Bartlomiej Zolnierkiewicz | 806f80a | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 750 | .ioctl = ide_disk_ioctl, |
| 751 | }; |