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) 2000-2002 Michael Cornwell <cornwell@acm.org> |
| 3 | * Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org> |
| 4 | * Copyright (C) 2001-2002 Klaus Smolin |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * IBM Storage Technology Division |
Bartlomiej Zolnierkiewicz | 59bca8c | 2008-02-01 23:09:33 +0100 | [diff] [blame] | 6 | * Copyright (C) 2003-2004, 2007 Bartlomiej Zolnierkiewicz |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * |
| 8 | * The big the bad and the ugly. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | */ |
| 10 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | #include <linux/types.h> |
| 12 | #include <linux/string.h> |
| 13 | #include <linux/kernel.h> |
Paul Gortmaker | 38789fd | 2011-07-17 15:33:58 -0400 | [diff] [blame] | 14 | #include <linux/export.h> |
Andrew Morton | 651c29a | 2006-02-15 15:17:37 -0800 | [diff] [blame] | 15 | #include <linux/sched.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #include <linux/interrupt.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | #include <linux/errno.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | #include <linux/delay.h> |
| 20 | #include <linux/hdreg.h> |
| 21 | #include <linux/ide.h> |
Jens Axboe | 55c16a7 | 2007-07-25 08:13:56 +0200 | [diff] [blame] | 22 | #include <linux/scatterlist.h> |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 23 | #include <linux/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | #include <asm/io.h> |
| 26 | |
Sergei Shtylyov | 3153c26 | 2009-04-08 14:13:03 +0200 | [diff] [blame] | 27 | void ide_tf_readback(ide_drive_t *drive, struct ide_cmd *cmd) |
| 28 | { |
| 29 | ide_hwif_t *hwif = drive->hwif; |
| 30 | const struct ide_tp_ops *tp_ops = hwif->tp_ops; |
| 31 | |
| 32 | /* Be sure we're looking at the low order bytes */ |
| 33 | tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS); |
| 34 | |
| 35 | tp_ops->tf_read(drive, &cmd->tf, cmd->valid.in.tf); |
| 36 | |
| 37 | if (cmd->tf_flags & IDE_TFLAG_LBA48) { |
| 38 | tp_ops->write_devctl(hwif, ATA_HOB | ATA_DEVCTL_OBS); |
| 39 | |
| 40 | tp_ops->tf_read(drive, &cmd->hob, cmd->valid.in.hob); |
| 41 | } |
| 42 | } |
| 43 | |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 44 | void ide_tf_dump(const char *s, struct ide_cmd *cmd) |
Bartlomiej Zolnierkiewicz | 089c5c7 | 2008-04-28 23:44:39 +0200 | [diff] [blame] | 45 | { |
| 46 | #ifdef DEBUG |
| 47 | printk("%s: tf: feat 0x%02x nsect 0x%02x lbal 0x%02x " |
| 48 | "lbam 0x%02x lbah 0x%02x dev 0x%02x cmd 0x%02x\n", |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 49 | s, cmd->tf.feature, cmd->tf.nsect, |
| 50 | cmd->tf.lbal, cmd->tf.lbam, cmd->tf.lbah, |
| 51 | cmd->tf.device, cmd->tf.command); |
| 52 | printk("%s: hob: nsect 0x%02x lbal 0x%02x lbam 0x%02x lbah 0x%02x\n", |
| 53 | s, cmd->hob.nsect, cmd->hob.lbal, cmd->hob.lbam, cmd->hob.lbah); |
Bartlomiej Zolnierkiewicz | 089c5c7 | 2008-04-28 23:44:39 +0200 | [diff] [blame] | 54 | #endif |
| 55 | } |
| 56 | |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 57 | int taskfile_lib_get_identify(ide_drive_t *drive, u8 *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | { |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 59 | struct ide_cmd cmd; |
Bartlomiej Zolnierkiewicz | 650d841 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 60 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 61 | memset(&cmd, 0, sizeof(cmd)); |
| 62 | cmd.tf.nsect = 0x01; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | if (drive->media == ide_disk) |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 64 | cmd.tf.command = ATA_CMD_ID_ATA; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | else |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 66 | cmd.tf.command = ATA_CMD_ID_ATAPI; |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 67 | cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; |
| 68 | cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 69 | cmd.protocol = ATA_PROT_PIO; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 70 | |
| 71 | return ide_raw_taskfile(drive, &cmd, buf, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | } |
| 73 | |
Bartlomiej Zolnierkiewicz | 1192e52 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 74 | static ide_startstop_t task_no_data_intr(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 75 | static ide_startstop_t pre_task_out_intr(ide_drive_t *, struct ide_cmd *); |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 76 | static ide_startstop_t task_pio_intr(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | 1192e52 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 77 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 78 | ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | { |
Bartlomiej Zolnierkiewicz | 898ec22 | 2009-01-06 17:20:52 +0100 | [diff] [blame] | 80 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 81 | struct ide_cmd *cmd = &hwif->cmd; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 82 | struct ide_taskfile *tf = &cmd->tf; |
Bartlomiej Zolnierkiewicz | 57d7366 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 83 | ide_handler_t *handler = NULL; |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 84 | const struct ide_tp_ops *tp_ops = hwif->tp_ops; |
Bartlomiej Zolnierkiewicz | f37afda | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 85 | const struct ide_dma_ops *dma_ops = hwif->dma_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 87 | if (orig_cmd->protocol == ATA_PROT_PIO && |
| 88 | (orig_cmd->tf_flags & IDE_TFLAG_MULTI_PIO) && |
| 89 | drive->mult_count == 0) { |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 90 | pr_err("%s: multimode not set!\n", drive->name); |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 91 | return ide_stopped; |
Bartlomiej Zolnierkiewicz | 1edee60 | 2008-01-25 22:17:15 +0100 | [diff] [blame] | 92 | } |
| 93 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 94 | if (orig_cmd->ftf_flags & IDE_FTFLAG_FLAGGED) |
| 95 | orig_cmd->ftf_flags |= IDE_FTFLAG_SET_IN_FLAGS; |
Bartlomiej Zolnierkiewicz | 1edee60 | 2008-01-25 22:17:15 +0100 | [diff] [blame] | 96 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 97 | memcpy(cmd, orig_cmd, sizeof(*cmd)); |
Bartlomiej Zolnierkiewicz | d6ff9f6 | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 98 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 99 | if ((cmd->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) { |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 100 | ide_tf_dump(drive->name, cmd); |
Sergei Shtylyov | ecf3a31 | 2009-03-31 20:15:30 +0200 | [diff] [blame] | 101 | tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS); |
Sergei Shtylyov | 35218d1 | 2009-03-31 20:15:31 +0200 | [diff] [blame] | 102 | |
| 103 | if (cmd->ftf_flags & IDE_FTFLAG_OUT_DATA) { |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 104 | u8 data[2] = { cmd->tf.data, cmd->hob.data }; |
Sergei Shtylyov | 35218d1 | 2009-03-31 20:15:31 +0200 | [diff] [blame] | 105 | |
| 106 | tp_ops->output_data(drive, cmd, data, 2); |
| 107 | } |
Sergei Shtylyov | 4109d19 | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 108 | |
| 109 | if (cmd->valid.out.tf & IDE_VALID_DEVICE) { |
| 110 | u8 HIHI = (cmd->tf_flags & IDE_TFLAG_LBA48) ? |
| 111 | 0xE0 : 0xEF; |
| 112 | |
| 113 | if (!(cmd->ftf_flags & IDE_FTFLAG_FLAGGED)) |
| 114 | cmd->tf.device &= HIHI; |
| 115 | cmd->tf.device |= drive->select; |
| 116 | } |
| 117 | |
Sergei Shtylyov | c9ff9e7 | 2009-04-08 14:13:03 +0200 | [diff] [blame] | 118 | tp_ops->tf_load(drive, &cmd->hob, cmd->valid.out.hob); |
| 119 | tp_ops->tf_load(drive, &cmd->tf, cmd->valid.out.tf); |
Bartlomiej Zolnierkiewicz | 089c5c7 | 2008-04-28 23:44:39 +0200 | [diff] [blame] | 120 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 122 | switch (cmd->protocol) { |
| 123 | case ATA_PROT_PIO: |
| 124 | if (cmd->tf_flags & IDE_TFLAG_WRITE) { |
| 125 | tp_ops->exec_command(hwif, tf->command); |
| 126 | ndelay(400); /* FIXME */ |
| 127 | return pre_task_out_intr(drive, cmd); |
| 128 | } |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 129 | handler = task_pio_intr; |
Bartlomiej Zolnierkiewicz | 1192e52 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 130 | /* fall-through */ |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 131 | case ATA_PROT_NODATA: |
Bartlomiej Zolnierkiewicz | 57d7366 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 132 | if (handler == NULL) |
| 133 | handler = task_no_data_intr; |
Bartlomiej Zolnierkiewicz | 35b5d0b | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 134 | ide_execute_command(drive, cmd, handler, WAIT_WORSTCASE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | return ide_started; |
Bartlomiej Zolnierkiewicz | b788ee9 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 136 | case ATA_PROT_DMA: |
Bartlomiej Zolnierkiewicz | 5ae5412 | 2009-03-31 20:15:20 +0200 | [diff] [blame] | 137 | if (ide_dma_prepare(drive, cmd)) |
Bartlomiej Zolnierkiewicz | 10d9015 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 138 | return ide_stopped; |
Bartlomiej Zolnierkiewicz | 22117d6 | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 139 | hwif->expiry = dma_ops->dma_timer_expiry; |
Bartlomiej Zolnierkiewicz | 35b5d0b | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 140 | ide_execute_command(drive, cmd, ide_dma_intr, 2 * WAIT_CMD); |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 141 | dma_ops->dma_start(drive); |
Bartlomiej Zolnierkiewicz | b788ee9 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 142 | default: |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 143 | return ide_started; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | } |
Bartlomiej Zolnierkiewicz | f6e29e3 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 146 | EXPORT_SYMBOL_GPL(do_rw_taskfile); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | |
Bartlomiej Zolnierkiewicz | d6ff9f6 | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 148 | static ide_startstop_t task_no_data_intr(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | { |
Bartlomiej Zolnierkiewicz | b73c7ee | 2008-07-23 19:55:52 +0200 | [diff] [blame] | 150 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 151 | struct ide_cmd *cmd = &hwif->cmd; |
| 152 | struct ide_taskfile *tf = &cmd->tf; |
| 153 | int custom = (cmd->tf_flags & IDE_TFLAG_CUSTOM_HANDLER) ? 1 : 0; |
Bartlomiej Zolnierkiewicz | d6ff9f6 | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 154 | int retries = (custom && tf->command == ATA_CMD_INIT_DEV_PARAMS) ? 5 : 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | u8 stat; |
| 156 | |
Bartlomiej Zolnierkiewicz | 90d2c6b | 2008-07-24 22:53:36 +0200 | [diff] [blame] | 157 | local_irq_enable_in_hardirq(); |
| 158 | |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 159 | while (1) { |
| 160 | stat = hwif->tp_ops->read_status(hwif); |
Bartlomiej Zolnierkiewicz | 3a7d248 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 161 | if ((stat & ATA_BUSY) == 0 || retries-- == 0) |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 162 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | udelay(10); |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 164 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | |
Bartlomiej Zolnierkiewicz | d6ff9f6 | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 166 | if (!OK_STAT(stat, ATA_DRDY, BAD_STAT)) { |
| 167 | if (custom && tf->command == ATA_CMD_SET_MULTI) { |
| 168 | drive->mult_req = drive->mult_count = 0; |
Bartlomiej Zolnierkiewicz | ca1b96e | 2009-05-17 19:12:21 +0200 | [diff] [blame] | 169 | drive->special_flags |= IDE_SFLAG_RECALIBRATE; |
Bartlomiej Zolnierkiewicz | d6ff9f6 | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 170 | (void)ide_dump_status(drive, __func__, stat); |
| 171 | return ide_stopped; |
| 172 | } else if (custom && tf->command == ATA_CMD_INIT_DEV_PARAMS) { |
| 173 | if ((stat & (ATA_ERR | ATA_DRQ)) == 0) { |
| 174 | ide_set_handler(drive, &task_no_data_intr, |
Bartlomiej Zolnierkiewicz | 60c0cd0 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 175 | WAIT_WORSTCASE); |
Bartlomiej Zolnierkiewicz | d6ff9f6 | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 176 | return ide_started; |
| 177 | } |
| 178 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | return ide_error(drive, "task_no_data_intr", stat); |
Bartlomiej Zolnierkiewicz | d6ff9f6 | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 180 | } |
Bartlomiej Zolnierkiewicz | c47137a | 2008-02-06 02:57:51 +0100 | [diff] [blame] | 181 | |
Bartlomiej Zolnierkiewicz | e7fedc3 | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 182 | if (custom && tf->command == ATA_CMD_SET_MULTI) |
Bartlomiej Zolnierkiewicz | d6ff9f6 | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 183 | drive->mult_count = drive->mult_req; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | |
Bartlomiej Zolnierkiewicz | d364c7f | 2009-03-27 12:46:42 +0100 | [diff] [blame] | 185 | if (custom == 0 || tf->command == ATA_CMD_IDLEIMMEDIATE || |
| 186 | tf->command == ATA_CMD_CHK_POWER) { |
Bartlomiej Zolnierkiewicz | a09485d | 2009-03-27 12:46:31 +0100 | [diff] [blame] | 187 | struct request *rq = hwif->rq; |
Bartlomiej Zolnierkiewicz | a09485d | 2009-03-27 12:46:31 +0100 | [diff] [blame] | 188 | |
Christoph Hellwig | a7928c1 | 2015-04-17 22:37:20 +0200 | [diff] [blame] | 189 | if (ata_pm_request(rq)) |
Bartlomiej Zolnierkiewicz | a09485d | 2009-03-27 12:46:31 +0100 | [diff] [blame] | 190 | ide_complete_pm_rq(drive, rq); |
Bartlomiej Zolnierkiewicz | 2230d90d | 2009-03-27 12:46:42 +0100 | [diff] [blame] | 191 | else |
| 192 | ide_finish_cmd(drive, cmd, stat); |
Bartlomiej Zolnierkiewicz | a09485d | 2009-03-27 12:46:31 +0100 | [diff] [blame] | 193 | } |
| 194 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | return ide_stopped; |
| 196 | } |
| 197 | |
Adrian Bunk | da6f4c7 | 2008-02-01 23:09:16 +0100 | [diff] [blame] | 198 | static u8 wait_drive_not_busy(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | { |
Bartlomiej Zolnierkiewicz | b73c7ee | 2008-07-23 19:55:52 +0200 | [diff] [blame] | 200 | ide_hwif_t *hwif = drive->hwif; |
Masatake YAMATO | b42fa13 | 2007-07-03 22:28:34 +0200 | [diff] [blame] | 201 | int retries; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | u8 stat; |
| 203 | |
| 204 | /* |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 205 | * Last sector was transferred, wait until device is ready. This can |
Bartlomiej Zolnierkiewicz | f54feaf | 2008-06-20 20:53:33 +0200 | [diff] [blame] | 206 | * take up to 6 ms on some ATAPI devices, so we will wait max 10 ms. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | */ |
Bartlomiej Zolnierkiewicz | f54feaf | 2008-06-20 20:53:33 +0200 | [diff] [blame] | 208 | for (retries = 0; retries < 1000; retries++) { |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 209 | stat = hwif->tp_ops->read_status(hwif); |
Bartlomiej Zolnierkiewicz | c47137a | 2008-02-06 02:57:51 +0100 | [diff] [blame] | 210 | |
Bartlomiej Zolnierkiewicz | 3a7d248 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 211 | if (stat & ATA_BUSY) |
Masatake YAMATO | b42fa13 | 2007-07-03 22:28:34 +0200 | [diff] [blame] | 212 | udelay(10); |
| 213 | else |
| 214 | break; |
| 215 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | |
Bartlomiej Zolnierkiewicz | 3a7d248 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 217 | if (stat & ATA_BUSY) |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 218 | pr_err("%s: drive still BUSY!\n", drive->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | |
| 220 | return stat; |
| 221 | } |
| 222 | |
Bartlomiej Zolnierkiewicz | a08915b | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 223 | void ide_pio_bytes(ide_drive_t *drive, struct ide_cmd *cmd, |
| 224 | unsigned int write, unsigned int len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | { |
| 226 | ide_hwif_t *hwif = drive->hwif; |
| 227 | struct scatterlist *sg = hwif->sg_table; |
Bartlomiej Zolnierkiewicz | b6308ee | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 228 | struct scatterlist *cursg = cmd->cursg; |
David S. Miller | 7fa350b | 2009-06-23 04:16:04 -0700 | [diff] [blame] | 229 | unsigned long uninitialized_var(flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | struct page *page; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | unsigned int offset; |
| 232 | u8 *buf; |
| 233 | |
Bartlomiej Zolnierkiewicz | b6308ee | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 234 | cursg = cmd->cursg; |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 235 | if (cursg == NULL) |
| 236 | cursg = cmd->cursg = sg; |
Jens Axboe | 55c16a7 | 2007-07-25 08:13:56 +0200 | [diff] [blame] | 237 | |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 238 | while (len) { |
| 239 | unsigned nr_bytes = min(len, cursg->length - cmd->cursg_ofs); |
Jean Delvare | a9079052 | 2009-06-23 04:12:24 -0700 | [diff] [blame] | 240 | int page_is_high; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 242 | page = sg_page(cursg); |
| 243 | offset = cursg->offset + cmd->cursg_ofs; |
| 244 | |
| 245 | /* get the current page and offset */ |
| 246 | page = nth_page(page, (offset >> PAGE_SHIFT)); |
| 247 | offset %= PAGE_SIZE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | |
Steven J. Hill | 1581208 | 2013-06-20 10:30:37 -0500 | [diff] [blame] | 249 | nr_bytes = min_t(unsigned, nr_bytes, (PAGE_SIZE - offset)); |
| 250 | |
Jean Delvare | a9079052 | 2009-06-23 04:12:24 -0700 | [diff] [blame] | 251 | page_is_high = PageHighMem(page); |
| 252 | if (page_is_high) |
Bartlomiej Zolnierkiewicz | f2bc316 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 253 | local_irq_save(flags); |
| 254 | |
Cong Wang | 45b408d | 2011-11-25 23:14:20 +0800 | [diff] [blame] | 255 | buf = kmap_atomic(page) + offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 257 | cmd->nleft -= nr_bytes; |
| 258 | cmd->cursg_ofs += nr_bytes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 260 | if (cmd->cursg_ofs == cursg->length) { |
| 261 | cursg = cmd->cursg = sg_next(cmd->cursg); |
| 262 | cmd->cursg_ofs = 0; |
| 263 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 265 | /* do the actual data transfer */ |
| 266 | if (write) |
| 267 | hwif->tp_ops->output_data(drive, cmd, buf, nr_bytes); |
| 268 | else |
| 269 | hwif->tp_ops->input_data(drive, cmd, buf, nr_bytes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | |
Cong Wang | 45b408d | 2011-11-25 23:14:20 +0800 | [diff] [blame] | 271 | kunmap_atomic(buf); |
Bartlomiej Zolnierkiewicz | f2bc316 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 272 | |
Jean Delvare | a9079052 | 2009-06-23 04:12:24 -0700 | [diff] [blame] | 273 | if (page_is_high) |
Bartlomiej Zolnierkiewicz | f2bc316 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 274 | local_irq_restore(flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 276 | len -= nr_bytes; |
| 277 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | } |
Bartlomiej Zolnierkiewicz | a08915b | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 279 | EXPORT_SYMBOL_GPL(ide_pio_bytes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 281 | static void ide_pio_datablock(ide_drive_t *drive, struct ide_cmd *cmd, |
| 282 | unsigned int write) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | { |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 284 | unsigned int nr_bytes; |
| 285 | |
Tejun Heo | 35cf2b9 | 2008-01-26 20:13:10 +0100 | [diff] [blame] | 286 | u8 saved_io_32bit = drive->io_32bit; |
| 287 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 288 | if (cmd->tf_flags & IDE_TFLAG_FS) |
| 289 | cmd->rq->errors = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 291 | if (cmd->tf_flags & IDE_TFLAG_IO_16BIT) |
Bartlomiej Zolnierkiewicz | e3d9a73 | 2009-03-27 12:46:32 +0100 | [diff] [blame] | 292 | drive->io_32bit = 0; |
Tejun Heo | 35cf2b9 | 2008-01-26 20:13:10 +0100 | [diff] [blame] | 293 | |
Andrew Morton | 651c29a | 2006-02-15 15:17:37 -0800 | [diff] [blame] | 294 | touch_softlockup_watchdog(); |
| 295 | |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 296 | if (cmd->tf_flags & IDE_TFLAG_MULTI_PIO) |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 297 | nr_bytes = min_t(unsigned, cmd->nleft, drive->mult_count << 9); |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 298 | else |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 299 | nr_bytes = SECTOR_SIZE; |
| 300 | |
| 301 | ide_pio_bytes(drive, cmd, write, nr_bytes); |
Tejun Heo | 35cf2b9 | 2008-01-26 20:13:10 +0100 | [diff] [blame] | 302 | |
| 303 | drive->io_32bit = saved_io_32bit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | } |
| 305 | |
Bartlomiej Zolnierkiewicz | 041cea1 | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 306 | static void ide_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | { |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 308 | if (cmd->tf_flags & IDE_TFLAG_FS) { |
Bartlomiej Zolnierkiewicz | bf717c0 | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 309 | int nr_bytes = cmd->nbytes - cmd->nleft; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 311 | if (cmd->protocol == ATA_PROT_PIO && |
| 312 | ((cmd->tf_flags & IDE_TFLAG_WRITE) || cmd->nleft == 0)) { |
| 313 | if (cmd->tf_flags & IDE_TFLAG_MULTI_PIO) |
Bartlomiej Zolnierkiewicz | bf717c0 | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 314 | nr_bytes -= drive->mult_count << 9; |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 315 | else |
Bartlomiej Zolnierkiewicz | bf717c0 | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 316 | nr_bytes -= SECTOR_SIZE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | } |
| 318 | |
Bartlomiej Zolnierkiewicz | bf717c0 | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 319 | if (nr_bytes > 0) |
| 320 | ide_complete_rq(drive, 0, nr_bytes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | } |
| 323 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 324 | void ide_finish_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | { |
Bartlomiej Zolnierkiewicz | 6902a53 | 2009-03-27 12:46:43 +0100 | [diff] [blame] | 326 | struct request *rq = drive->hwif->rq; |
Bartlomiej Zolnierkiewicz | 665d66e | 2009-06-23 11:35:51 +0000 | [diff] [blame] | 327 | u8 err = ide_read_error(drive), nsect = cmd->tf.nsect; |
| 328 | u8 set_xfer = !!(cmd->tf_flags & IDE_TFLAG_SET_XFER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | |
Bartlomiej Zolnierkiewicz | 2230d90d | 2009-03-27 12:46:42 +0100 | [diff] [blame] | 330 | ide_complete_cmd(drive, cmd, stat, err); |
Bartlomiej Zolnierkiewicz | 6902a53 | 2009-03-27 12:46:43 +0100 | [diff] [blame] | 331 | rq->errors = err; |
Bartlomiej Zolnierkiewicz | 665d66e | 2009-06-23 11:35:51 +0000 | [diff] [blame] | 332 | |
| 333 | if (err == 0 && set_xfer) { |
| 334 | ide_set_xfer_rate(drive, nsect); |
| 335 | ide_driveid_update(drive); |
| 336 | } |
| 337 | |
Bartlomiej Zolnierkiewicz | f974b19 | 2009-03-27 12:46:44 +0100 | [diff] [blame] | 338 | ide_complete_rq(drive, err ? -EIO : 0, blk_rq_bytes(rq)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | } |
| 340 | |
| 341 | /* |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 342 | * Handler for command with PIO data phase. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | */ |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 344 | static ide_startstop_t task_pio_intr(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | { |
| 346 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 347 | struct ide_cmd *cmd = &drive->hwif->cmd; |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 348 | u8 stat = hwif->tp_ops->read_status(hwif); |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 349 | u8 write = !!(cmd->tf_flags & IDE_TFLAG_WRITE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 351 | if (write == 0) { |
| 352 | /* Error? */ |
| 353 | if (stat & ATA_ERR) |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 354 | goto out_err; |
Linus Torvalds | 6c3c315 | 2008-03-18 21:26:24 -0700 | [diff] [blame] | 355 | |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 356 | /* Didn't want any data? Odd. */ |
Bartlomiej Zolnierkiewicz | 151055e | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 357 | if ((stat & ATA_DRQ) == 0) { |
| 358 | /* Command all done? */ |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 359 | if (OK_STAT(stat, ATA_DRDY, ATA_BUSY)) |
| 360 | goto out_end; |
Bartlomiej Zolnierkiewicz | 151055e | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 361 | |
| 362 | /* Assume it was a spurious irq */ |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 363 | goto out_wait; |
Bartlomiej Zolnierkiewicz | 151055e | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 364 | } |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 365 | } else { |
| 366 | if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat)) |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 367 | goto out_err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 369 | /* Deal with unexpected ATA data phase. */ |
| 370 | if (((stat & ATA_DRQ) == 0) ^ (cmd->nleft == 0)) |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 371 | goto out_err; |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 372 | } |
| 373 | |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 374 | if (write && cmd->nleft == 0) |
| 375 | goto out_end; |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 376 | |
| 377 | /* Still data left to transfer. */ |
| 378 | ide_pio_datablock(drive, cmd, write); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | |
Linus Torvalds | 6c3c315 | 2008-03-18 21:26:24 -0700 | [diff] [blame] | 380 | /* Are we done? Check status and finish transfer. */ |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 381 | if (write == 0 && cmd->nleft == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | stat = wait_drive_not_busy(drive); |
Bartlomiej Zolnierkiewicz | 73d7de0 | 2008-01-26 20:13:10 +0100 | [diff] [blame] | 383 | if (!OK_STAT(stat, 0, BAD_STAT)) |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 384 | goto out_err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 386 | goto out_end; |
| 387 | } |
| 388 | out_wait: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | /* Still data left to transfer. */ |
Bartlomiej Zolnierkiewicz | 60c0cd0 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 390 | ide_set_handler(drive, &task_pio_intr, WAIT_WORSTCASE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | return ide_started; |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 392 | out_end: |
Bartlomiej Zolnierkiewicz | 2230d90d | 2009-03-27 12:46:42 +0100 | [diff] [blame] | 393 | if ((cmd->tf_flags & IDE_TFLAG_FS) == 0) |
| 394 | ide_finish_cmd(drive, cmd, stat); |
| 395 | else |
Tejun Heo | 9780e2d | 2009-05-07 22:24:40 +0900 | [diff] [blame] | 396 | ide_complete_rq(drive, 0, blk_rq_sectors(cmd->rq) << 9); |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 397 | return ide_stopped; |
| 398 | out_err: |
Bartlomiej Zolnierkiewicz | 041cea1 | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 399 | ide_error_cmd(drive, cmd); |
| 400 | return ide_error(drive, __func__, stat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | } |
| 402 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 403 | static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, |
| 404 | struct ide_cmd *cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | { |
| 406 | ide_startstop_t startstop; |
| 407 | |
Bartlomiej Zolnierkiewicz | 3a7d248 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 408 | if (ide_wait_stat(&startstop, drive, ATA_DRQ, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | drive->bad_wstat, WAIT_DRQ)) { |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 410 | pr_err("%s: no DRQ after issuing %sWRITE%s\n", drive->name, |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 411 | (cmd->tf_flags & IDE_TFLAG_MULTI_PIO) ? "MULT" : "", |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 412 | (drive->dev_flags & IDE_DFLAG_LBA48) ? "_EXT" : ""); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | return startstop; |
| 414 | } |
| 415 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 416 | if ((drive->dev_flags & IDE_DFLAG_UNMASK) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | local_irq_disable(); |
| 418 | |
Bartlomiej Zolnierkiewicz | 60c0cd0 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 419 | ide_set_handler(drive, &task_pio_intr, WAIT_WORSTCASE); |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 420 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 421 | ide_pio_datablock(drive, cmd, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | |
| 423 | return ide_started; |
| 424 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 426 | int ide_raw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd, u8 *buf, |
| 427 | u16 nsect) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | { |
FUJITA Tomonori | 154ed28 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 429 | struct request *rq; |
| 430 | int error; |
Mikulas Patocka | 720fc22 | 2010-04-06 16:43:33 -0700 | [diff] [blame] | 431 | int rw = !(cmd->tf_flags & IDE_TFLAG_WRITE) ? READ : WRITE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | |
Mel Gorman | 71baba4 | 2015-11-06 16:28:28 -0800 | [diff] [blame] | 433 | rq = blk_get_request(drive->queue, rw, __GFP_RECLAIM); |
Christoph Hellwig | 82ed4db | 2017-01-27 09:46:29 +0100 | [diff] [blame] | 434 | scsi_req_init(rq); |
FUJITA Tomonori | 154ed28 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 435 | rq->cmd_type = REQ_TYPE_ATA_TASKFILE; |
Tejun Heo | d868ca2 | 2009-04-19 07:00:42 +0900 | [diff] [blame] | 436 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | /* |
| 438 | * (ks) We transfer currently only whole sectors. |
| 439 | * This is suffient for now. But, it would be great, |
| 440 | * if we would find a solution to transfer any size. |
| 441 | * To support special commands like READ LONG. |
| 442 | */ |
Tejun Heo | d868ca2 | 2009-04-19 07:00:42 +0900 | [diff] [blame] | 443 | if (nsect) { |
| 444 | error = blk_rq_map_kern(drive->queue, rq, buf, |
Mel Gorman | 71baba4 | 2015-11-06 16:28:28 -0800 | [diff] [blame] | 445 | nsect * SECTOR_SIZE, __GFP_RECLAIM); |
Tejun Heo | d868ca2 | 2009-04-19 07:00:42 +0900 | [diff] [blame] | 446 | if (error) |
| 447 | goto put_req; |
| 448 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 450 | rq->special = cmd; |
| 451 | cmd->rq = rq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | |
FUJITA Tomonori | 154ed28 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 453 | error = blk_execute_rq(drive->queue, NULL, rq, 0); |
FUJITA Tomonori | 154ed28 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 454 | |
Tejun Heo | d868ca2 | 2009-04-19 07:00:42 +0900 | [diff] [blame] | 455 | put_req: |
| 456 | blk_put_request(rq); |
FUJITA Tomonori | 154ed28 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 457 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | EXPORT_SYMBOL(ide_raw_taskfile); |
| 460 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 461 | int ide_no_data_taskfile(ide_drive_t *drive, struct ide_cmd *cmd) |
Bartlomiej Zolnierkiewicz | 9a3c49b | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 462 | { |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 463 | cmd->protocol = ATA_PROT_NODATA; |
Bartlomiej Zolnierkiewicz | 9a3c49b | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 464 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 465 | return ide_raw_taskfile(drive, cmd, NULL, 0); |
Bartlomiej Zolnierkiewicz | 9a3c49b | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 466 | } |
| 467 | EXPORT_SYMBOL_GPL(ide_no_data_taskfile); |
| 468 | |
Bartlomiej Zolnierkiewicz | 26a5b04 | 2007-11-05 21:42:27 +0100 | [diff] [blame] | 469 | #ifdef CONFIG_IDE_TASK_IOCTL |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 470 | int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | { |
| 472 | ide_task_request_t *req_task; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 473 | struct ide_cmd cmd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | u8 *outbuf = NULL; |
| 475 | u8 *inbuf = NULL; |
Bartlomiej Zolnierkiewicz | ac026ff | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 476 | u8 *data_buf = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | int err = 0; |
| 478 | int tasksize = sizeof(struct ide_task_request_s); |
Alan Cox | 3a42bb2 | 2006-10-16 16:31:02 +0100 | [diff] [blame] | 479 | unsigned int taskin = 0; |
| 480 | unsigned int taskout = 0; |
Bartlomiej Zolnierkiewicz | ac026ff | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 481 | u16 nsect = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | char __user *buf = (char __user *)arg; |
| 483 | |
Julia Lawall | 7d543d8 | 2010-06-04 16:11:17 -0700 | [diff] [blame] | 484 | req_task = memdup_user(buf, tasksize); |
| 485 | if (IS_ERR(req_task)) |
| 486 | return PTR_ERR(req_task); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | |
Alan Cox | 3a42bb2 | 2006-10-16 16:31:02 +0100 | [diff] [blame] | 488 | taskout = req_task->out_size; |
| 489 | taskin = req_task->in_size; |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 490 | |
Alan Cox | 3a42bb2 | 2006-10-16 16:31:02 +0100 | [diff] [blame] | 491 | if (taskin > 65536 || taskout > 65536) { |
| 492 | err = -EINVAL; |
| 493 | goto abort; |
| 494 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | |
| 496 | if (taskout) { |
| 497 | int outtotal = tasksize; |
Deepak Saxena | f5e3c2f | 2005-11-07 01:01:25 -0800 | [diff] [blame] | 498 | outbuf = kzalloc(taskout, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | if (outbuf == NULL) { |
| 500 | err = -ENOMEM; |
| 501 | goto abort; |
| 502 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | if (copy_from_user(outbuf, buf + outtotal, taskout)) { |
| 504 | err = -EFAULT; |
| 505 | goto abort; |
| 506 | } |
| 507 | } |
| 508 | |
| 509 | if (taskin) { |
| 510 | int intotal = tasksize + taskout; |
Deepak Saxena | f5e3c2f | 2005-11-07 01:01:25 -0800 | [diff] [blame] | 511 | inbuf = kzalloc(taskin, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | if (inbuf == NULL) { |
| 513 | err = -ENOMEM; |
| 514 | goto abort; |
| 515 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | if (copy_from_user(inbuf, buf + intotal, taskin)) { |
| 517 | err = -EFAULT; |
| 518 | goto abort; |
| 519 | } |
| 520 | } |
| 521 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 522 | memset(&cmd, 0, sizeof(cmd)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 524 | memcpy(&cmd.hob, req_task->hob_ports, HDIO_DRIVE_HOB_HDR_SIZE - 2); |
| 525 | memcpy(&cmd.tf, req_task->io_ports, HDIO_DRIVE_TASK_HDR_SIZE); |
Bartlomiej Zolnierkiewicz | 866e2ec | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 526 | |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 527 | cmd.valid.out.tf = IDE_VALID_DEVICE; |
| 528 | cmd.valid.in.tf = IDE_VALID_DEVICE | IDE_VALID_IN_TF; |
| 529 | cmd.tf_flags = IDE_TFLAG_IO_16BIT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 531 | if (drive->dev_flags & IDE_DFLAG_LBA48) { |
| 532 | cmd.tf_flags |= IDE_TFLAG_LBA48; |
| 533 | cmd.valid.in.hob = IDE_VALID_IN_HOB; |
| 534 | } |
Bartlomiej Zolnierkiewicz | a3bbb9d | 2008-01-25 22:17:10 +0100 | [diff] [blame] | 535 | |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 536 | if (req_task->out_flags.all) { |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 537 | cmd.ftf_flags |= IDE_FTFLAG_FLAGGED; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 538 | |
| 539 | if (req_task->out_flags.b.data) |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 540 | cmd.ftf_flags |= IDE_FTFLAG_OUT_DATA; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 541 | |
| 542 | if (req_task->out_flags.b.nsector_hob) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 543 | cmd.valid.out.hob |= IDE_VALID_NSECT; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 544 | if (req_task->out_flags.b.sector_hob) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 545 | cmd.valid.out.hob |= IDE_VALID_LBAL; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 546 | if (req_task->out_flags.b.lcyl_hob) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 547 | cmd.valid.out.hob |= IDE_VALID_LBAM; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 548 | if (req_task->out_flags.b.hcyl_hob) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 549 | cmd.valid.out.hob |= IDE_VALID_LBAH; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 550 | |
| 551 | if (req_task->out_flags.b.error_feature) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 552 | cmd.valid.out.tf |= IDE_VALID_FEATURE; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 553 | if (req_task->out_flags.b.nsector) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 554 | cmd.valid.out.tf |= IDE_VALID_NSECT; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 555 | if (req_task->out_flags.b.sector) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 556 | cmd.valid.out.tf |= IDE_VALID_LBAL; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 557 | if (req_task->out_flags.b.lcyl) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 558 | cmd.valid.out.tf |= IDE_VALID_LBAM; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 559 | if (req_task->out_flags.b.hcyl) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 560 | cmd.valid.out.tf |= IDE_VALID_LBAH; |
Bartlomiej Zolnierkiewicz | a3bbb9d | 2008-01-25 22:17:10 +0100 | [diff] [blame] | 561 | } else { |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 562 | cmd.valid.out.tf |= IDE_VALID_OUT_TF; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 563 | if (cmd.tf_flags & IDE_TFLAG_LBA48) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 564 | cmd.valid.out.hob |= IDE_VALID_OUT_HOB; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 565 | } |
| 566 | |
Bartlomiej Zolnierkiewicz | 866e2ec | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 567 | if (req_task->in_flags.b.data) |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 568 | cmd.ftf_flags |= IDE_FTFLAG_IN_DATA; |
Bartlomiej Zolnierkiewicz | 866e2ec | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 569 | |
Bartlomiej Zolnierkiewicz | 04d09b0 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 570 | if (req_task->req_cmd == IDE_DRIVE_TASK_RAW_WRITE) { |
| 571 | /* fixup data phase if needed */ |
| 572 | if (req_task->data_phase == TASKFILE_IN_DMAQ || |
| 573 | req_task->data_phase == TASKFILE_IN_DMA) |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 574 | cmd.tf_flags |= IDE_TFLAG_WRITE; |
Bartlomiej Zolnierkiewicz | 04d09b0 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 575 | } |
| 576 | |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 577 | cmd.protocol = ATA_PROT_DMA; |
| 578 | |
| 579 | switch (req_task->data_phase) { |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 580 | case TASKFILE_MULTI_OUT: |
| 581 | if (!drive->mult_count) { |
| 582 | /* (hs): give up if multcount is not set */ |
| 583 | pr_err("%s: %s Multimode Write multcount is not set\n", |
| 584 | drive->name, __func__); |
| 585 | err = -EPERM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | goto abort; |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 587 | } |
| 588 | cmd.tf_flags |= IDE_TFLAG_MULTI_PIO; |
| 589 | /* fall through */ |
| 590 | case TASKFILE_OUT: |
| 591 | cmd.protocol = ATA_PROT_PIO; |
| 592 | /* fall through */ |
| 593 | case TASKFILE_OUT_DMAQ: |
| 594 | case TASKFILE_OUT_DMA: |
| 595 | cmd.tf_flags |= IDE_TFLAG_WRITE; |
| 596 | nsect = taskout / SECTOR_SIZE; |
| 597 | data_buf = outbuf; |
| 598 | break; |
| 599 | case TASKFILE_MULTI_IN: |
| 600 | if (!drive->mult_count) { |
| 601 | /* (hs): give up if multcount is not set */ |
| 602 | pr_err("%s: %s Multimode Read multcount is not set\n", |
| 603 | drive->name, __func__); |
| 604 | err = -EPERM; |
| 605 | goto abort; |
| 606 | } |
| 607 | cmd.tf_flags |= IDE_TFLAG_MULTI_PIO; |
| 608 | /* fall through */ |
| 609 | case TASKFILE_IN: |
| 610 | cmd.protocol = ATA_PROT_PIO; |
| 611 | /* fall through */ |
| 612 | case TASKFILE_IN_DMAQ: |
| 613 | case TASKFILE_IN_DMA: |
| 614 | nsect = taskin / SECTOR_SIZE; |
| 615 | data_buf = inbuf; |
| 616 | break; |
| 617 | case TASKFILE_NO_DATA: |
| 618 | cmd.protocol = ATA_PROT_NODATA; |
| 619 | break; |
| 620 | default: |
| 621 | err = -EFAULT; |
| 622 | goto abort; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 623 | } |
| 624 | |
Bartlomiej Zolnierkiewicz | ac026ff | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 625 | if (req_task->req_cmd == IDE_DRIVE_TASK_NO_DATA) |
| 626 | nsect = 0; |
| 627 | else if (!nsect) { |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 628 | nsect = (cmd.hob.nsect << 8) | cmd.tf.nsect; |
Bartlomiej Zolnierkiewicz | ac026ff | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 629 | |
| 630 | if (!nsect) { |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 631 | pr_err("%s: in/out command without data\n", |
Bartlomiej Zolnierkiewicz | ac026ff | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 632 | drive->name); |
| 633 | err = -EFAULT; |
| 634 | goto abort; |
| 635 | } |
| 636 | } |
| 637 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 638 | err = ide_raw_taskfile(drive, &cmd, data_buf, nsect); |
Bartlomiej Zolnierkiewicz | ac026ff | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 639 | |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 640 | memcpy(req_task->hob_ports, &cmd.hob, HDIO_DRIVE_HOB_HDR_SIZE - 2); |
| 641 | memcpy(req_task->io_ports, &cmd.tf, HDIO_DRIVE_TASK_HDR_SIZE); |
Bartlomiej Zolnierkiewicz | 866e2ec | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 642 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 643 | if ((cmd.ftf_flags & IDE_FTFLAG_SET_IN_FLAGS) && |
Bartlomiej Zolnierkiewicz | 866e2ec | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 644 | req_task->in_flags.all == 0) { |
| 645 | req_task->in_flags.all = IDE_TASKFILE_STD_IN_FLAGS; |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 646 | if (drive->dev_flags & IDE_DFLAG_LBA48) |
Bartlomiej Zolnierkiewicz | 866e2ec | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 647 | req_task->in_flags.all |= (IDE_HOB_STD_IN_FLAGS << 8); |
| 648 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 649 | |
| 650 | if (copy_to_user(buf, req_task, tasksize)) { |
| 651 | err = -EFAULT; |
| 652 | goto abort; |
| 653 | } |
| 654 | if (taskout) { |
| 655 | int outtotal = tasksize; |
| 656 | if (copy_to_user(buf + outtotal, outbuf, taskout)) { |
| 657 | err = -EFAULT; |
| 658 | goto abort; |
| 659 | } |
| 660 | } |
| 661 | if (taskin) { |
| 662 | int intotal = tasksize + taskout; |
| 663 | if (copy_to_user(buf + intotal, inbuf, taskin)) { |
| 664 | err = -EFAULT; |
| 665 | goto abort; |
| 666 | } |
| 667 | } |
| 668 | abort: |
| 669 | kfree(req_task); |
Jesper Juhl | 6044ec8 | 2005-11-07 01:01:32 -0800 | [diff] [blame] | 670 | kfree(outbuf); |
| 671 | kfree(inbuf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | return err; |
| 674 | } |
Bartlomiej Zolnierkiewicz | 26a5b04 | 2007-11-05 21:42:27 +0100 | [diff] [blame] | 675 | #endif |