Thomas Gleixner | 457c899 | 2019-05-19 13:08:55 +0100 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-only |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | /* |
Bartlomiej Zolnierkiewicz | 59bca8c | 2008-02-01 23:09:33 +0100 | [diff] [blame] | 3 | * Copyright (C) 2000-2002 Michael Cornwell <cornwell@acm.org> |
| 4 | * Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org> |
| 5 | * Copyright (C) 2001-2002 Klaus Smolin |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | * IBM Storage Technology Division |
Bartlomiej Zolnierkiewicz | 59bca8c | 2008-02-01 23:09:33 +0100 | [diff] [blame] | 7 | * Copyright (C) 2003-2004, 2007 Bartlomiej Zolnierkiewicz |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | * |
| 9 | * The big the bad and the ugly. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | */ |
| 11 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | #include <linux/types.h> |
| 13 | #include <linux/string.h> |
| 14 | #include <linux/kernel.h> |
Paul Gortmaker | 38789fd | 2011-07-17 15:33:58 -0400 | [diff] [blame] | 15 | #include <linux/export.h> |
Andrew Morton | 651c29a | 2006-02-15 15:17:37 -0800 | [diff] [blame] | 16 | #include <linux/sched.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | #include <linux/interrupt.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include <linux/errno.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | #include <linux/delay.h> |
| 21 | #include <linux/hdreg.h> |
| 22 | #include <linux/ide.h> |
Ingo Molnar | 38b8d20 | 2017-02-08 18:51:31 +0100 | [diff] [blame] | 23 | #include <linux/nmi.h> |
Jens Axboe | 55c16a7 | 2007-07-25 08:13:56 +0200 | [diff] [blame] | 24 | #include <linux/scatterlist.h> |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 25 | #include <linux/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | #include <asm/io.h> |
| 28 | |
Sergei Shtylyov | 3153c26 | 2009-04-08 14:13:03 +0200 | [diff] [blame] | 29 | void ide_tf_readback(ide_drive_t *drive, struct ide_cmd *cmd) |
| 30 | { |
| 31 | ide_hwif_t *hwif = drive->hwif; |
| 32 | const struct ide_tp_ops *tp_ops = hwif->tp_ops; |
| 33 | |
| 34 | /* Be sure we're looking at the low order bytes */ |
| 35 | tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS); |
| 36 | |
| 37 | tp_ops->tf_read(drive, &cmd->tf, cmd->valid.in.tf); |
| 38 | |
| 39 | if (cmd->tf_flags & IDE_TFLAG_LBA48) { |
| 40 | tp_ops->write_devctl(hwif, ATA_HOB | ATA_DEVCTL_OBS); |
| 41 | |
| 42 | tp_ops->tf_read(drive, &cmd->hob, cmd->valid.in.hob); |
| 43 | } |
| 44 | } |
| 45 | |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 46 | void ide_tf_dump(const char *s, struct ide_cmd *cmd) |
Bartlomiej Zolnierkiewicz | 089c5c7 | 2008-04-28 23:44:39 +0200 | [diff] [blame] | 47 | { |
| 48 | #ifdef DEBUG |
| 49 | printk("%s: tf: feat 0x%02x nsect 0x%02x lbal 0x%02x " |
| 50 | "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] | 51 | s, cmd->tf.feature, cmd->tf.nsect, |
| 52 | cmd->tf.lbal, cmd->tf.lbam, cmd->tf.lbah, |
| 53 | cmd->tf.device, cmd->tf.command); |
| 54 | printk("%s: hob: nsect 0x%02x lbal 0x%02x lbam 0x%02x lbah 0x%02x\n", |
| 55 | 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] | 56 | #endif |
| 57 | } |
| 58 | |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 59 | int taskfile_lib_get_identify(ide_drive_t *drive, u8 *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | { |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 61 | struct ide_cmd cmd; |
Bartlomiej Zolnierkiewicz | 650d841 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 62 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 63 | memset(&cmd, 0, sizeof(cmd)); |
| 64 | cmd.tf.nsect = 0x01; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | if (drive->media == ide_disk) |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 66 | cmd.tf.command = ATA_CMD_ID_ATA; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | else |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 68 | cmd.tf.command = ATA_CMD_ID_ATAPI; |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 69 | cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; |
| 70 | cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 71 | cmd.protocol = ATA_PROT_PIO; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 72 | |
| 73 | return ide_raw_taskfile(drive, &cmd, buf, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | } |
| 75 | |
Bartlomiej Zolnierkiewicz | 1192e52 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 76 | static ide_startstop_t task_no_data_intr(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 77 | 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] | 78 | static ide_startstop_t task_pio_intr(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | 1192e52 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 79 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 80 | 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] | 81 | { |
Bartlomiej Zolnierkiewicz | 898ec22 | 2009-01-06 17:20:52 +0100 | [diff] [blame] | 82 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 83 | struct ide_cmd *cmd = &hwif->cmd; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 84 | struct ide_taskfile *tf = &cmd->tf; |
Bartlomiej Zolnierkiewicz | 57d7366 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 85 | ide_handler_t *handler = NULL; |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 86 | const struct ide_tp_ops *tp_ops = hwif->tp_ops; |
Bartlomiej Zolnierkiewicz | f37afda | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 87 | const struct ide_dma_ops *dma_ops = hwif->dma_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 89 | if (orig_cmd->protocol == ATA_PROT_PIO && |
| 90 | (orig_cmd->tf_flags & IDE_TFLAG_MULTI_PIO) && |
| 91 | drive->mult_count == 0) { |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 92 | pr_err("%s: multimode not set!\n", drive->name); |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 93 | return ide_stopped; |
Bartlomiej Zolnierkiewicz | 1edee60 | 2008-01-25 22:17:15 +0100 | [diff] [blame] | 94 | } |
| 95 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 96 | if (orig_cmd->ftf_flags & IDE_FTFLAG_FLAGGED) |
| 97 | orig_cmd->ftf_flags |= IDE_FTFLAG_SET_IN_FLAGS; |
Bartlomiej Zolnierkiewicz | 1edee60 | 2008-01-25 22:17:15 +0100 | [diff] [blame] | 98 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 99 | memcpy(cmd, orig_cmd, sizeof(*cmd)); |
Bartlomiej Zolnierkiewicz | d6ff9f6 | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 100 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 101 | if ((cmd->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) { |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 102 | ide_tf_dump(drive->name, cmd); |
Sergei Shtylyov | ecf3a31 | 2009-03-31 20:15:30 +0200 | [diff] [blame] | 103 | tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS); |
Sergei Shtylyov | 35218d1 | 2009-03-31 20:15:31 +0200 | [diff] [blame] | 104 | |
| 105 | if (cmd->ftf_flags & IDE_FTFLAG_OUT_DATA) { |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 106 | u8 data[2] = { cmd->tf.data, cmd->hob.data }; |
Sergei Shtylyov | 35218d1 | 2009-03-31 20:15:31 +0200 | [diff] [blame] | 107 | |
| 108 | tp_ops->output_data(drive, cmd, data, 2); |
| 109 | } |
Sergei Shtylyov | 4109d19 | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 110 | |
| 111 | if (cmd->valid.out.tf & IDE_VALID_DEVICE) { |
| 112 | u8 HIHI = (cmd->tf_flags & IDE_TFLAG_LBA48) ? |
| 113 | 0xE0 : 0xEF; |
| 114 | |
| 115 | if (!(cmd->ftf_flags & IDE_FTFLAG_FLAGGED)) |
| 116 | cmd->tf.device &= HIHI; |
| 117 | cmd->tf.device |= drive->select; |
| 118 | } |
| 119 | |
Sergei Shtylyov | c9ff9e7 | 2009-04-08 14:13:03 +0200 | [diff] [blame] | 120 | tp_ops->tf_load(drive, &cmd->hob, cmd->valid.out.hob); |
| 121 | tp_ops->tf_load(drive, &cmd->tf, cmd->valid.out.tf); |
Bartlomiej Zolnierkiewicz | 089c5c7 | 2008-04-28 23:44:39 +0200 | [diff] [blame] | 122 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 124 | switch (cmd->protocol) { |
| 125 | case ATA_PROT_PIO: |
| 126 | if (cmd->tf_flags & IDE_TFLAG_WRITE) { |
| 127 | tp_ops->exec_command(hwif, tf->command); |
| 128 | ndelay(400); /* FIXME */ |
| 129 | return pre_task_out_intr(drive, cmd); |
| 130 | } |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 131 | handler = task_pio_intr; |
Gustavo A. R. Silva | df561f66 | 2020-08-23 17:36:59 -0500 | [diff] [blame] | 132 | fallthrough; |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 133 | case ATA_PROT_NODATA: |
Bartlomiej Zolnierkiewicz | 57d7366 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 134 | if (handler == NULL) |
| 135 | handler = task_no_data_intr; |
Bartlomiej Zolnierkiewicz | 35b5d0b | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 136 | ide_execute_command(drive, cmd, handler, WAIT_WORSTCASE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | return ide_started; |
Bartlomiej Zolnierkiewicz | b788ee9 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 138 | case ATA_PROT_DMA: |
Bartlomiej Zolnierkiewicz | 5ae5412 | 2009-03-31 20:15:20 +0200 | [diff] [blame] | 139 | if (ide_dma_prepare(drive, cmd)) |
Bartlomiej Zolnierkiewicz | 10d9015 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 140 | return ide_stopped; |
Bartlomiej Zolnierkiewicz | 22117d6 | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 141 | hwif->expiry = dma_ops->dma_timer_expiry; |
Bartlomiej Zolnierkiewicz | 35b5d0b | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 142 | ide_execute_command(drive, cmd, ide_dma_intr, 2 * WAIT_CMD); |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 143 | dma_ops->dma_start(drive); |
Gustavo A. R. Silva | df561f66 | 2020-08-23 17:36:59 -0500 | [diff] [blame] | 144 | fallthrough; |
Bartlomiej Zolnierkiewicz | b788ee9 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 145 | default: |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 146 | return ide_started; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | } |
Bartlomiej Zolnierkiewicz | f6e29e3 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 149 | EXPORT_SYMBOL_GPL(do_rw_taskfile); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | |
Bartlomiej Zolnierkiewicz | d6ff9f6 | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 151 | static ide_startstop_t task_no_data_intr(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | { |
Bartlomiej Zolnierkiewicz | b73c7ee | 2008-07-23 19:55:52 +0200 | [diff] [blame] | 153 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 154 | struct ide_cmd *cmd = &hwif->cmd; |
| 155 | struct ide_taskfile *tf = &cmd->tf; |
| 156 | int custom = (cmd->tf_flags & IDE_TFLAG_CUSTOM_HANDLER) ? 1 : 0; |
Bartlomiej Zolnierkiewicz | d6ff9f6 | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 157 | int retries = (custom && tf->command == ATA_CMD_INIT_DEV_PARAMS) ? 5 : 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | u8 stat; |
| 159 | |
Bartlomiej Zolnierkiewicz | 90d2c6b | 2008-07-24 22:53:36 +0200 | [diff] [blame] | 160 | local_irq_enable_in_hardirq(); |
| 161 | |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 162 | while (1) { |
| 163 | stat = hwif->tp_ops->read_status(hwif); |
Bartlomiej Zolnierkiewicz | 3a7d248 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 164 | if ((stat & ATA_BUSY) == 0 || retries-- == 0) |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 165 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | udelay(10); |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 167 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | |
Bartlomiej Zolnierkiewicz | d6ff9f6 | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 169 | if (!OK_STAT(stat, ATA_DRDY, BAD_STAT)) { |
| 170 | if (custom && tf->command == ATA_CMD_SET_MULTI) { |
| 171 | drive->mult_req = drive->mult_count = 0; |
Bartlomiej Zolnierkiewicz | ca1b96e | 2009-05-17 19:12:21 +0200 | [diff] [blame] | 172 | drive->special_flags |= IDE_SFLAG_RECALIBRATE; |
Bartlomiej Zolnierkiewicz | d6ff9f6 | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 173 | (void)ide_dump_status(drive, __func__, stat); |
| 174 | return ide_stopped; |
| 175 | } else if (custom && tf->command == ATA_CMD_INIT_DEV_PARAMS) { |
| 176 | if ((stat & (ATA_ERR | ATA_DRQ)) == 0) { |
| 177 | ide_set_handler(drive, &task_no_data_intr, |
Bartlomiej Zolnierkiewicz | 60c0cd0 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 178 | WAIT_WORSTCASE); |
Bartlomiej Zolnierkiewicz | d6ff9f6 | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 179 | return ide_started; |
| 180 | } |
| 181 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | return ide_error(drive, "task_no_data_intr", stat); |
Bartlomiej Zolnierkiewicz | d6ff9f6 | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 183 | } |
Bartlomiej Zolnierkiewicz | c47137a | 2008-02-06 02:57:51 +0100 | [diff] [blame] | 184 | |
Bartlomiej Zolnierkiewicz | e7fedc3 | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 185 | if (custom && tf->command == ATA_CMD_SET_MULTI) |
Bartlomiej Zolnierkiewicz | d6ff9f6 | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 186 | drive->mult_count = drive->mult_req; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | |
Bartlomiej Zolnierkiewicz | d364c7f | 2009-03-27 12:46:42 +0100 | [diff] [blame] | 188 | if (custom == 0 || tf->command == ATA_CMD_IDLEIMMEDIATE || |
| 189 | tf->command == ATA_CMD_CHK_POWER) { |
Bartlomiej Zolnierkiewicz | a09485d | 2009-03-27 12:46:31 +0100 | [diff] [blame] | 190 | struct request *rq = hwif->rq; |
Bartlomiej Zolnierkiewicz | a09485d | 2009-03-27 12:46:31 +0100 | [diff] [blame] | 191 | |
Christoph Hellwig | a7928c1 | 2015-04-17 22:37:20 +0200 | [diff] [blame] | 192 | if (ata_pm_request(rq)) |
Bartlomiej Zolnierkiewicz | a09485d | 2009-03-27 12:46:31 +0100 | [diff] [blame] | 193 | ide_complete_pm_rq(drive, rq); |
Bartlomiej Zolnierkiewicz | 2230d90d | 2009-03-27 12:46:42 +0100 | [diff] [blame] | 194 | else |
| 195 | ide_finish_cmd(drive, cmd, stat); |
Bartlomiej Zolnierkiewicz | a09485d | 2009-03-27 12:46:31 +0100 | [diff] [blame] | 196 | } |
| 197 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | return ide_stopped; |
| 199 | } |
| 200 | |
Adrian Bunk | da6f4c7 | 2008-02-01 23:09:16 +0100 | [diff] [blame] | 201 | static u8 wait_drive_not_busy(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | { |
Bartlomiej Zolnierkiewicz | b73c7ee | 2008-07-23 19:55:52 +0200 | [diff] [blame] | 203 | ide_hwif_t *hwif = drive->hwif; |
Masatake YAMATO | b42fa13 | 2007-07-03 22:28:34 +0200 | [diff] [blame] | 204 | int retries; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | u8 stat; |
| 206 | |
| 207 | /* |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 208 | * Last sector was transferred, wait until device is ready. This can |
Bartlomiej Zolnierkiewicz | f54feaf | 2008-06-20 20:53:33 +0200 | [diff] [blame] | 209 | * 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] | 210 | */ |
Bartlomiej Zolnierkiewicz | f54feaf | 2008-06-20 20:53:33 +0200 | [diff] [blame] | 211 | for (retries = 0; retries < 1000; retries++) { |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 212 | stat = hwif->tp_ops->read_status(hwif); |
Bartlomiej Zolnierkiewicz | c47137a | 2008-02-06 02:57:51 +0100 | [diff] [blame] | 213 | |
Bartlomiej Zolnierkiewicz | 3a7d248 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 214 | if (stat & ATA_BUSY) |
Masatake YAMATO | b42fa13 | 2007-07-03 22:28:34 +0200 | [diff] [blame] | 215 | udelay(10); |
| 216 | else |
| 217 | break; |
| 218 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | |
Bartlomiej Zolnierkiewicz | 3a7d248 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 220 | if (stat & ATA_BUSY) |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 221 | pr_err("%s: drive still BUSY!\n", drive->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | |
| 223 | return stat; |
| 224 | } |
| 225 | |
Bartlomiej Zolnierkiewicz | a08915b | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 226 | void ide_pio_bytes(ide_drive_t *drive, struct ide_cmd *cmd, |
| 227 | unsigned int write, unsigned int len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | { |
| 229 | ide_hwif_t *hwif = drive->hwif; |
| 230 | struct scatterlist *sg = hwif->sg_table; |
Bartlomiej Zolnierkiewicz | b6308ee | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 231 | struct scatterlist *cursg = cmd->cursg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | struct page *page; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | unsigned int offset; |
| 234 | u8 *buf; |
| 235 | |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 236 | if (cursg == NULL) |
| 237 | cursg = cmd->cursg = sg; |
Jens Axboe | 55c16a7 | 2007-07-25 08:13:56 +0200 | [diff] [blame] | 238 | |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 239 | while (len) { |
| 240 | unsigned nr_bytes = min(len, cursg->length - cmd->cursg_ofs); |
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 | |
Cong Wang | 45b408d | 2011-11-25 23:14:20 +0800 | [diff] [blame] | 251 | buf = kmap_atomic(page) + offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 253 | cmd->nleft -= nr_bytes; |
| 254 | cmd->cursg_ofs += nr_bytes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 256 | if (cmd->cursg_ofs == cursg->length) { |
| 257 | cursg = cmd->cursg = sg_next(cmd->cursg); |
| 258 | cmd->cursg_ofs = 0; |
| 259 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 261 | /* do the actual data transfer */ |
| 262 | if (write) |
| 263 | hwif->tp_ops->output_data(drive, cmd, buf, nr_bytes); |
| 264 | else |
| 265 | hwif->tp_ops->input_data(drive, cmd, buf, nr_bytes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | |
Cong Wang | 45b408d | 2011-11-25 23:14:20 +0800 | [diff] [blame] | 267 | kunmap_atomic(buf); |
Bartlomiej Zolnierkiewicz | f2bc316 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 268 | |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 269 | len -= nr_bytes; |
| 270 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | } |
Bartlomiej Zolnierkiewicz | a08915b | 2009-03-31 20:15:13 +0200 | [diff] [blame] | 272 | EXPORT_SYMBOL_GPL(ide_pio_bytes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 274 | static void ide_pio_datablock(ide_drive_t *drive, struct ide_cmd *cmd, |
| 275 | unsigned int write) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | { |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 277 | unsigned int nr_bytes; |
| 278 | |
Tejun Heo | 35cf2b9 | 2008-01-26 20:13:10 +0100 | [diff] [blame] | 279 | u8 saved_io_32bit = drive->io_32bit; |
| 280 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 281 | if (cmd->tf_flags & IDE_TFLAG_FS) |
Christoph Hellwig | 17d5363 | 2017-04-20 16:03:01 +0200 | [diff] [blame] | 282 | scsi_req(cmd->rq)->result = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 284 | if (cmd->tf_flags & IDE_TFLAG_IO_16BIT) |
Bartlomiej Zolnierkiewicz | e3d9a73 | 2009-03-27 12:46:32 +0100 | [diff] [blame] | 285 | drive->io_32bit = 0; |
Tejun Heo | 35cf2b9 | 2008-01-26 20:13:10 +0100 | [diff] [blame] | 286 | |
Andrew Morton | 651c29a | 2006-02-15 15:17:37 -0800 | [diff] [blame] | 287 | touch_softlockup_watchdog(); |
| 288 | |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 289 | if (cmd->tf_flags & IDE_TFLAG_MULTI_PIO) |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 290 | nr_bytes = min_t(unsigned, cmd->nleft, drive->mult_count << 9); |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 291 | else |
Bartlomiej Zolnierkiewicz | 7a00798 | 2009-03-31 20:14:59 +0200 | [diff] [blame] | 292 | nr_bytes = SECTOR_SIZE; |
| 293 | |
| 294 | ide_pio_bytes(drive, cmd, write, nr_bytes); |
Tejun Heo | 35cf2b9 | 2008-01-26 20:13:10 +0100 | [diff] [blame] | 295 | |
| 296 | drive->io_32bit = saved_io_32bit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | } |
| 298 | |
Bartlomiej Zolnierkiewicz | 041cea1 | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 299 | 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] | 300 | { |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 301 | if (cmd->tf_flags & IDE_TFLAG_FS) { |
Bartlomiej Zolnierkiewicz | bf717c0 | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 302 | int nr_bytes = cmd->nbytes - cmd->nleft; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 304 | if (cmd->protocol == ATA_PROT_PIO && |
| 305 | ((cmd->tf_flags & IDE_TFLAG_WRITE) || cmd->nleft == 0)) { |
| 306 | if (cmd->tf_flags & IDE_TFLAG_MULTI_PIO) |
Bartlomiej Zolnierkiewicz | bf717c0 | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 307 | nr_bytes -= drive->mult_count << 9; |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 308 | else |
Bartlomiej Zolnierkiewicz | bf717c0 | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 309 | nr_bytes -= SECTOR_SIZE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | } |
| 311 | |
Bartlomiej Zolnierkiewicz | bf717c0 | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 312 | if (nr_bytes > 0) |
Christoph Hellwig | 2a842ac | 2017-06-03 09:38:04 +0200 | [diff] [blame] | 313 | ide_complete_rq(drive, BLK_STS_OK, nr_bytes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | } |
| 316 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 317 | 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] | 318 | { |
Bartlomiej Zolnierkiewicz | 6902a53 | 2009-03-27 12:46:43 +0100 | [diff] [blame] | 319 | struct request *rq = drive->hwif->rq; |
Bartlomiej Zolnierkiewicz | 665d66e | 2009-06-23 11:35:51 +0000 | [diff] [blame] | 320 | u8 err = ide_read_error(drive), nsect = cmd->tf.nsect; |
| 321 | u8 set_xfer = !!(cmd->tf_flags & IDE_TFLAG_SET_XFER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | |
Bartlomiej Zolnierkiewicz | 2230d90d | 2009-03-27 12:46:42 +0100 | [diff] [blame] | 323 | ide_complete_cmd(drive, cmd, stat, err); |
Christoph Hellwig | 17d5363 | 2017-04-20 16:03:01 +0200 | [diff] [blame] | 324 | scsi_req(rq)->result = err; |
Bartlomiej Zolnierkiewicz | 665d66e | 2009-06-23 11:35:51 +0000 | [diff] [blame] | 325 | |
| 326 | if (err == 0 && set_xfer) { |
| 327 | ide_set_xfer_rate(drive, nsect); |
| 328 | ide_driveid_update(drive); |
| 329 | } |
| 330 | |
Christoph Hellwig | 2a842ac | 2017-06-03 09:38:04 +0200 | [diff] [blame] | 331 | ide_complete_rq(drive, err ? BLK_STS_IOERR : BLK_STS_OK, blk_rq_bytes(rq)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | } |
| 333 | |
| 334 | /* |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 335 | * Handler for command with PIO data phase. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | */ |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 337 | static ide_startstop_t task_pio_intr(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | { |
| 339 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 340 | struct ide_cmd *cmd = &drive->hwif->cmd; |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 341 | u8 stat = hwif->tp_ops->read_status(hwif); |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 342 | u8 write = !!(cmd->tf_flags & IDE_TFLAG_WRITE); |
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 | if (write == 0) { |
| 345 | /* Error? */ |
| 346 | if (stat & ATA_ERR) |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 347 | goto out_err; |
Linus Torvalds | 6c3c315 | 2008-03-18 21:26:24 -0700 | [diff] [blame] | 348 | |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 349 | /* Didn't want any data? Odd. */ |
Bartlomiej Zolnierkiewicz | 151055e | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 350 | if ((stat & ATA_DRQ) == 0) { |
| 351 | /* Command all done? */ |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 352 | if (OK_STAT(stat, ATA_DRDY, ATA_BUSY)) |
| 353 | goto out_end; |
Bartlomiej Zolnierkiewicz | 151055e | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 354 | |
| 355 | /* Assume it was a spurious irq */ |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 356 | goto out_wait; |
Bartlomiej Zolnierkiewicz | 151055e | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 357 | } |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 358 | } else { |
| 359 | if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat)) |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 360 | goto out_err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 362 | /* Deal with unexpected ATA data phase. */ |
| 363 | if (((stat & ATA_DRQ) == 0) ^ (cmd->nleft == 0)) |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 364 | goto out_err; |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 365 | } |
| 366 | |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 367 | if (write && cmd->nleft == 0) |
| 368 | goto out_end; |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 369 | |
| 370 | /* Still data left to transfer. */ |
| 371 | ide_pio_datablock(drive, cmd, write); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | |
Linus Torvalds | 6c3c315 | 2008-03-18 21:26:24 -0700 | [diff] [blame] | 373 | /* Are we done? Check status and finish transfer. */ |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 374 | if (write == 0 && cmd->nleft == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | stat = wait_drive_not_busy(drive); |
Bartlomiej Zolnierkiewicz | 73d7de0 | 2008-01-26 20:13:10 +0100 | [diff] [blame] | 376 | if (!OK_STAT(stat, 0, BAD_STAT)) |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 377 | goto out_err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 379 | goto out_end; |
| 380 | } |
| 381 | out_wait: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | /* Still data left to transfer. */ |
Bartlomiej Zolnierkiewicz | 60c0cd0 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 383 | ide_set_handler(drive, &task_pio_intr, WAIT_WORSTCASE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | return ide_started; |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 385 | out_end: |
Bartlomiej Zolnierkiewicz | 2230d90d | 2009-03-27 12:46:42 +0100 | [diff] [blame] | 386 | if ((cmd->tf_flags & IDE_TFLAG_FS) == 0) |
| 387 | ide_finish_cmd(drive, cmd, stat); |
| 388 | else |
Christoph Hellwig | 2a842ac | 2017-06-03 09:38:04 +0200 | [diff] [blame] | 389 | ide_complete_rq(drive, BLK_STS_OK, blk_rq_sectors(cmd->rq) << 9); |
Bartlomiej Zolnierkiewicz | 0a1248c | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 390 | return ide_stopped; |
| 391 | out_err: |
Bartlomiej Zolnierkiewicz | 041cea1 | 2009-03-27 12:46:41 +0100 | [diff] [blame] | 392 | ide_error_cmd(drive, cmd); |
| 393 | return ide_error(drive, __func__, stat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | } |
| 395 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 396 | static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, |
| 397 | struct ide_cmd *cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | { |
| 399 | ide_startstop_t startstop; |
| 400 | |
Bartlomiej Zolnierkiewicz | 3a7d248 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 401 | if (ide_wait_stat(&startstop, drive, ATA_DRQ, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | drive->bad_wstat, WAIT_DRQ)) { |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 403 | pr_err("%s: no DRQ after issuing %sWRITE%s\n", drive->name, |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 404 | (cmd->tf_flags & IDE_TFLAG_MULTI_PIO) ? "MULT" : "", |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 405 | (drive->dev_flags & IDE_DFLAG_LBA48) ? "_EXT" : ""); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | return startstop; |
| 407 | } |
| 408 | |
Sebastian Andrzej Siewior | 47b82e8 | 2018-05-04 16:24:46 +0200 | [diff] [blame] | 409 | if (!force_irqthreads && (drive->dev_flags & IDE_DFLAG_UNMASK) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | local_irq_disable(); |
| 411 | |
Bartlomiej Zolnierkiewicz | 60c0cd0 | 2009-03-27 12:46:46 +0100 | [diff] [blame] | 412 | ide_set_handler(drive, &task_pio_intr, WAIT_WORSTCASE); |
Bartlomiej Zolnierkiewicz | 901bd08a | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 413 | |
Bartlomiej Zolnierkiewicz | adb1af9 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 414 | ide_pio_datablock(drive, cmd, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | |
| 416 | return ide_started; |
| 417 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 419 | int ide_raw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd, u8 *buf, |
| 420 | u16 nsect) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | { |
FUJITA Tomonori | 154ed28 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 422 | struct request *rq; |
| 423 | int error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | |
Christoph Hellwig | aebf526 | 2017-01-31 16:57:31 +0100 | [diff] [blame] | 425 | rq = blk_get_request(drive->queue, |
| 426 | (cmd->tf_flags & IDE_TFLAG_WRITE) ? |
Christoph Hellwig | ff005a0 | 2018-05-09 09:54:05 +0200 | [diff] [blame] | 427 | REQ_OP_DRV_OUT : REQ_OP_DRV_IN, 0); |
Christoph Hellwig | 2f5a8e80 | 2017-01-31 16:57:30 +0100 | [diff] [blame] | 428 | ide_req(rq)->type = ATA_PRIV_TASKFILE; |
Tejun Heo | d868ca2 | 2009-04-19 07:00:42 +0900 | [diff] [blame] | 429 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | /* |
| 431 | * (ks) We transfer currently only whole sectors. |
| 432 | * This is suffient for now. But, it would be great, |
| 433 | * if we would find a solution to transfer any size. |
| 434 | * To support special commands like READ LONG. |
| 435 | */ |
Tejun Heo | d868ca2 | 2009-04-19 07:00:42 +0900 | [diff] [blame] | 436 | if (nsect) { |
| 437 | error = blk_rq_map_kern(drive->queue, rq, buf, |
Christoph Hellwig | 0eb0b63 | 2018-05-09 09:54:08 +0200 | [diff] [blame] | 438 | nsect * SECTOR_SIZE, GFP_NOIO); |
Tejun Heo | d868ca2 | 2009-04-19 07:00:42 +0900 | [diff] [blame] | 439 | if (error) |
| 440 | goto put_req; |
| 441 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | |
Christoph Hellwig | 22ce0a7 | 2018-11-10 09:30:49 +0100 | [diff] [blame] | 443 | ide_req(rq)->special = cmd; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 444 | cmd->rq = rq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 445 | |
Guoqing Jiang | 684da76 | 2021-01-25 05:49:58 +0100 | [diff] [blame] | 446 | blk_execute_rq(NULL, rq, 0); |
Christoph Hellwig | 17d5363 | 2017-04-20 16:03:01 +0200 | [diff] [blame] | 447 | error = scsi_req(rq)->result ? -EIO : 0; |
Tejun Heo | d868ca2 | 2009-04-19 07:00:42 +0900 | [diff] [blame] | 448 | put_req: |
| 449 | blk_put_request(rq); |
FUJITA Tomonori | 154ed28 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 450 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | EXPORT_SYMBOL(ide_raw_taskfile); |
| 453 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 454 | 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] | 455 | { |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 456 | cmd->protocol = ATA_PROT_NODATA; |
Bartlomiej Zolnierkiewicz | 9a3c49b | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 457 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 458 | return ide_raw_taskfile(drive, cmd, NULL, 0); |
Bartlomiej Zolnierkiewicz | 9a3c49b | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 459 | } |
| 460 | EXPORT_SYMBOL_GPL(ide_no_data_taskfile); |
| 461 | |
Bartlomiej Zolnierkiewicz | 26a5b04 | 2007-11-05 21:42:27 +0100 | [diff] [blame] | 462 | #ifdef CONFIG_IDE_TASK_IOCTL |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 463 | int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | { |
| 465 | ide_task_request_t *req_task; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 466 | struct ide_cmd cmd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | u8 *outbuf = NULL; |
| 468 | u8 *inbuf = NULL; |
Bartlomiej Zolnierkiewicz | ac026ff | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 469 | u8 *data_buf = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | int err = 0; |
| 471 | int tasksize = sizeof(struct ide_task_request_s); |
Alan Cox | 3a42bb2 | 2006-10-16 16:31:02 +0100 | [diff] [blame] | 472 | unsigned int taskin = 0; |
| 473 | unsigned int taskout = 0; |
Bartlomiej Zolnierkiewicz | ac026ff | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 474 | u16 nsect = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | char __user *buf = (char __user *)arg; |
| 476 | |
Julia Lawall | 7d543d8 | 2010-06-04 16:11:17 -0700 | [diff] [blame] | 477 | req_task = memdup_user(buf, tasksize); |
| 478 | if (IS_ERR(req_task)) |
| 479 | return PTR_ERR(req_task); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 480 | |
Alan Cox | 3a42bb2 | 2006-10-16 16:31:02 +0100 | [diff] [blame] | 481 | taskout = req_task->out_size; |
| 482 | taskin = req_task->in_size; |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 483 | |
Alan Cox | 3a42bb2 | 2006-10-16 16:31:02 +0100 | [diff] [blame] | 484 | if (taskin > 65536 || taskout > 65536) { |
| 485 | err = -EINVAL; |
| 486 | goto abort; |
| 487 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | |
| 489 | if (taskout) { |
| 490 | int outtotal = tasksize; |
Deepak Saxena | f5e3c2f | 2005-11-07 01:01:25 -0800 | [diff] [blame] | 491 | outbuf = kzalloc(taskout, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 492 | if (outbuf == NULL) { |
| 493 | err = -ENOMEM; |
| 494 | goto abort; |
| 495 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | if (copy_from_user(outbuf, buf + outtotal, taskout)) { |
| 497 | err = -EFAULT; |
| 498 | goto abort; |
| 499 | } |
| 500 | } |
| 501 | |
| 502 | if (taskin) { |
| 503 | int intotal = tasksize + taskout; |
Deepak Saxena | f5e3c2f | 2005-11-07 01:01:25 -0800 | [diff] [blame] | 504 | inbuf = kzalloc(taskin, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | if (inbuf == NULL) { |
| 506 | err = -ENOMEM; |
| 507 | goto abort; |
| 508 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | if (copy_from_user(inbuf, buf + intotal, taskin)) { |
| 510 | err = -EFAULT; |
| 511 | goto abort; |
| 512 | } |
| 513 | } |
| 514 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 515 | memset(&cmd, 0, sizeof(cmd)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 517 | memcpy(&cmd.hob, req_task->hob_ports, HDIO_DRIVE_HOB_HDR_SIZE - 2); |
| 518 | memcpy(&cmd.tf, req_task->io_ports, HDIO_DRIVE_TASK_HDR_SIZE); |
Bartlomiej Zolnierkiewicz | 866e2ec | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 519 | |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 520 | cmd.valid.out.tf = IDE_VALID_DEVICE; |
| 521 | cmd.valid.in.tf = IDE_VALID_DEVICE | IDE_VALID_IN_TF; |
| 522 | cmd.tf_flags = IDE_TFLAG_IO_16BIT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 524 | if (drive->dev_flags & IDE_DFLAG_LBA48) { |
| 525 | cmd.tf_flags |= IDE_TFLAG_LBA48; |
| 526 | cmd.valid.in.hob = IDE_VALID_IN_HOB; |
| 527 | } |
Bartlomiej Zolnierkiewicz | a3bbb9d | 2008-01-25 22:17:10 +0100 | [diff] [blame] | 528 | |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 529 | if (req_task->out_flags.all) { |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 530 | cmd.ftf_flags |= IDE_FTFLAG_FLAGGED; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 531 | |
| 532 | if (req_task->out_flags.b.data) |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 533 | cmd.ftf_flags |= IDE_FTFLAG_OUT_DATA; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 534 | |
| 535 | if (req_task->out_flags.b.nsector_hob) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 536 | cmd.valid.out.hob |= IDE_VALID_NSECT; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 537 | if (req_task->out_flags.b.sector_hob) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 538 | cmd.valid.out.hob |= IDE_VALID_LBAL; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 539 | if (req_task->out_flags.b.lcyl_hob) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 540 | cmd.valid.out.hob |= IDE_VALID_LBAM; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 541 | if (req_task->out_flags.b.hcyl_hob) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 542 | cmd.valid.out.hob |= IDE_VALID_LBAH; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 543 | |
| 544 | if (req_task->out_flags.b.error_feature) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 545 | cmd.valid.out.tf |= IDE_VALID_FEATURE; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 546 | if (req_task->out_flags.b.nsector) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 547 | cmd.valid.out.tf |= IDE_VALID_NSECT; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 548 | if (req_task->out_flags.b.sector) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 549 | cmd.valid.out.tf |= IDE_VALID_LBAL; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 550 | if (req_task->out_flags.b.lcyl) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 551 | cmd.valid.out.tf |= IDE_VALID_LBAM; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 552 | if (req_task->out_flags.b.hcyl) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 553 | cmd.valid.out.tf |= IDE_VALID_LBAH; |
Bartlomiej Zolnierkiewicz | a3bbb9d | 2008-01-25 22:17:10 +0100 | [diff] [blame] | 554 | } else { |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 555 | cmd.valid.out.tf |= IDE_VALID_OUT_TF; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 556 | if (cmd.tf_flags & IDE_TFLAG_LBA48) |
Sergei Shtylyov | 60f8501 | 2009-04-08 14:13:01 +0200 | [diff] [blame] | 557 | cmd.valid.out.hob |= IDE_VALID_OUT_HOB; |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 558 | } |
| 559 | |
Bartlomiej Zolnierkiewicz | 866e2ec | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 560 | if (req_task->in_flags.b.data) |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 561 | cmd.ftf_flags |= IDE_FTFLAG_IN_DATA; |
Bartlomiej Zolnierkiewicz | 866e2ec | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 562 | |
Bartlomiej Zolnierkiewicz | 04d09b0 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 563 | if (req_task->req_cmd == IDE_DRIVE_TASK_RAW_WRITE) { |
| 564 | /* fixup data phase if needed */ |
| 565 | if (req_task->data_phase == TASKFILE_IN_DMAQ || |
| 566 | req_task->data_phase == TASKFILE_IN_DMA) |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 567 | cmd.tf_flags |= IDE_TFLAG_WRITE; |
Bartlomiej Zolnierkiewicz | 04d09b0 | 2009-03-27 12:46:38 +0100 | [diff] [blame] | 568 | } |
| 569 | |
Bartlomiej Zolnierkiewicz | 0dfb991 | 2009-03-27 12:46:39 +0100 | [diff] [blame] | 570 | cmd.protocol = ATA_PROT_DMA; |
| 571 | |
| 572 | switch (req_task->data_phase) { |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 573 | case TASKFILE_MULTI_OUT: |
| 574 | if (!drive->mult_count) { |
| 575 | /* (hs): give up if multcount is not set */ |
| 576 | pr_err("%s: %s Multimode Write multcount is not set\n", |
| 577 | drive->name, __func__); |
| 578 | err = -EPERM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 579 | goto abort; |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 580 | } |
| 581 | cmd.tf_flags |= IDE_TFLAG_MULTI_PIO; |
Gustavo A. R. Silva | df561f66 | 2020-08-23 17:36:59 -0500 | [diff] [blame] | 582 | fallthrough; |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 583 | case TASKFILE_OUT: |
| 584 | cmd.protocol = ATA_PROT_PIO; |
Gustavo A. R. Silva | df561f66 | 2020-08-23 17:36:59 -0500 | [diff] [blame] | 585 | fallthrough; |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 586 | case TASKFILE_OUT_DMAQ: |
| 587 | case TASKFILE_OUT_DMA: |
| 588 | cmd.tf_flags |= IDE_TFLAG_WRITE; |
| 589 | nsect = taskout / SECTOR_SIZE; |
| 590 | data_buf = outbuf; |
| 591 | break; |
| 592 | case TASKFILE_MULTI_IN: |
| 593 | if (!drive->mult_count) { |
| 594 | /* (hs): give up if multcount is not set */ |
| 595 | pr_err("%s: %s Multimode Read multcount is not set\n", |
| 596 | drive->name, __func__); |
| 597 | err = -EPERM; |
| 598 | goto abort; |
| 599 | } |
| 600 | cmd.tf_flags |= IDE_TFLAG_MULTI_PIO; |
Gustavo A. R. Silva | df561f66 | 2020-08-23 17:36:59 -0500 | [diff] [blame] | 601 | fallthrough; |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 602 | case TASKFILE_IN: |
| 603 | cmd.protocol = ATA_PROT_PIO; |
Gustavo A. R. Silva | df561f66 | 2020-08-23 17:36:59 -0500 | [diff] [blame] | 604 | fallthrough; |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 605 | case TASKFILE_IN_DMAQ: |
| 606 | case TASKFILE_IN_DMA: |
| 607 | nsect = taskin / SECTOR_SIZE; |
| 608 | data_buf = inbuf; |
| 609 | break; |
| 610 | case TASKFILE_NO_DATA: |
| 611 | cmd.protocol = ATA_PROT_NODATA; |
| 612 | break; |
| 613 | default: |
| 614 | err = -EFAULT; |
| 615 | goto abort; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | } |
| 617 | |
Bartlomiej Zolnierkiewicz | ac026ff | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 618 | if (req_task->req_cmd == IDE_DRIVE_TASK_NO_DATA) |
| 619 | nsect = 0; |
| 620 | else if (!nsect) { |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 621 | nsect = (cmd.hob.nsect << 8) | cmd.tf.nsect; |
Bartlomiej Zolnierkiewicz | ac026ff | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 622 | |
| 623 | if (!nsect) { |
Jaswinder Singh Rajput | 2d5abce | 2009-08-02 20:17:34 -0700 | [diff] [blame] | 624 | pr_err("%s: in/out command without data\n", |
Bartlomiej Zolnierkiewicz | ac026ff | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 625 | drive->name); |
| 626 | err = -EFAULT; |
| 627 | goto abort; |
| 628 | } |
| 629 | } |
| 630 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 631 | err = ide_raw_taskfile(drive, &cmd, data_buf, nsect); |
Bartlomiej Zolnierkiewicz | ac026ff | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 632 | |
Sergei Shtylyov | 745483f | 2009-04-08 14:13:02 +0200 | [diff] [blame] | 633 | memcpy(req_task->hob_ports, &cmd.hob, HDIO_DRIVE_HOB_HDR_SIZE - 2); |
| 634 | memcpy(req_task->io_ports, &cmd.tf, HDIO_DRIVE_TASK_HDR_SIZE); |
Bartlomiej Zolnierkiewicz | 866e2ec | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 635 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 636 | if ((cmd.ftf_flags & IDE_FTFLAG_SET_IN_FLAGS) && |
Bartlomiej Zolnierkiewicz | 866e2ec | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 637 | req_task->in_flags.all == 0) { |
| 638 | req_task->in_flags.all = IDE_TASKFILE_STD_IN_FLAGS; |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 639 | if (drive->dev_flags & IDE_DFLAG_LBA48) |
Bartlomiej Zolnierkiewicz | 866e2ec | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 640 | req_task->in_flags.all |= (IDE_HOB_STD_IN_FLAGS << 8); |
| 641 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | |
| 643 | if (copy_to_user(buf, req_task, tasksize)) { |
| 644 | err = -EFAULT; |
| 645 | goto abort; |
| 646 | } |
| 647 | if (taskout) { |
| 648 | int outtotal = tasksize; |
| 649 | if (copy_to_user(buf + outtotal, outbuf, taskout)) { |
| 650 | err = -EFAULT; |
| 651 | goto abort; |
| 652 | } |
| 653 | } |
| 654 | if (taskin) { |
| 655 | int intotal = tasksize + taskout; |
| 656 | if (copy_to_user(buf + intotal, inbuf, taskin)) { |
| 657 | err = -EFAULT; |
| 658 | goto abort; |
| 659 | } |
| 660 | } |
| 661 | abort: |
| 662 | kfree(req_task); |
Jesper Juhl | 6044ec8 | 2005-11-07 01:01:32 -0800 | [diff] [blame] | 663 | kfree(outbuf); |
| 664 | kfree(inbuf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 665 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | return err; |
| 667 | } |
Bartlomiej Zolnierkiewicz | 26a5b04 | 2007-11-05 21:42:27 +0100 | [diff] [blame] | 668 | #endif |