Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Borislav Petkov | d3f2084 | 2008-02-01 23:09:33 +0100 | [diff] [blame] | 2 | * IDE ATAPI floppy driver. |
| 3 | * |
Bartlomiej Zolnierkiewicz | 59bca8c | 2008-02-01 23:09:33 +0100 | [diff] [blame] | 4 | * Copyright (C) 1996-1999 Gadi Oxman <gadio@netvision.net.il> |
| 5 | * Copyright (C) 2000-2002 Paul Bristow <paul@paulbristow.net> |
| 6 | * Copyright (C) 2005 Bartlomiej Zolnierkiewicz |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 7 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | * This driver supports the following IDE floppy drives: |
| 9 | * |
| 10 | * LS-120/240 SuperDisk |
| 11 | * Iomega Zip 100/250 |
| 12 | * Iomega PC Card Clik!/PocketZip |
| 13 | * |
Borislav Petkov | d3f2084 | 2008-02-01 23:09:33 +0100 | [diff] [blame] | 14 | * For a historical changelog see |
| 15 | * Documentation/ide/ChangeLog.ide-floppy.1996-2002 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | */ |
| 17 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include <linux/types.h> |
| 19 | #include <linux/string.h> |
| 20 | #include <linux/kernel.h> |
| 21 | #include <linux/delay.h> |
| 22 | #include <linux/timer.h> |
| 23 | #include <linux/mm.h> |
| 24 | #include <linux/interrupt.h> |
| 25 | #include <linux/major.h> |
| 26 | #include <linux/errno.h> |
| 27 | #include <linux/genhd.h> |
| 28 | #include <linux/slab.h> |
| 29 | #include <linux/cdrom.h> |
| 30 | #include <linux/ide.h> |
Bartlomiej Zolnierkiewicz | 3ceca72 | 2008-10-10 22:39:27 +0200 | [diff] [blame] | 31 | #include <linux/hdreg.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #include <linux/bitops.h> |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 33 | #include <linux/mutex.h> |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 34 | #include <linux/scatterlist.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | |
Bartlomiej Zolnierkiewicz | 89636af | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 36 | #include <scsi/scsi_ioctl.h> |
| 37 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include <asm/byteorder.h> |
Borislav Petkov | 7e8b163 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 39 | #include <linux/irq.h> |
| 40 | #include <linux/uaccess.h> |
| 41 | #include <linux/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | #include <asm/unaligned.h> |
| 43 | |
Bartlomiej Zolnierkiewicz | 0127854 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 44 | #include "ide-floppy.h" |
| 45 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 47 | * After each failed packet command we issue a request sense command and retry |
| 48 | * the packet command IDEFLOPPY_MAX_PC_RETRIES times. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | */ |
| 50 | #define IDEFLOPPY_MAX_PC_RETRIES 3 |
| 51 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 52 | /* format capacities descriptor codes */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | #define CAPACITY_INVALID 0x00 |
| 54 | #define CAPACITY_UNFORMATTED 0x01 |
| 55 | #define CAPACITY_CURRENT 0x02 |
| 56 | #define CAPACITY_NO_CARTRIDGE 0x03 |
| 57 | |
Bartlomiej Zolnierkiewicz | baf08f0 | 2008-10-13 21:39:32 +0200 | [diff] [blame] | 58 | /* |
| 59 | * The following delay solves a problem with ATAPI Zip 100 drive where BSY bit |
| 60 | * was apparently being deasserted before the unit was ready to receive data. |
| 61 | */ |
| 62 | #define IDEFLOPPY_PC_DELAY (HZ/20) /* default delay for ZIP 100 (50ms) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 64 | /* Error code returned in rq->errors to the higher part of the driver. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | #define IDEFLOPPY_ERROR_GENERAL 101 |
| 66 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 68 | * Used to finish servicing a request. For read/write requests, we will call |
| 69 | * ide_end_request to pass to the next buffer. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | */ |
Bartlomiej Zolnierkiewicz | 806f80a | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 71 | static int ide_floppy_end_request(ide_drive_t *drive, int uptodate, int nsecs) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | { |
Bartlomiej Zolnierkiewicz | 0df9627 | 2008-10-17 18:09:16 +0200 | [diff] [blame] | 73 | struct ide_disk_obj *floppy = drive->driver_data; |
Bartlomiej Zolnierkiewicz | b65fac3 | 2009-01-06 17:20:50 +0100 | [diff] [blame] | 74 | struct request *rq = drive->hwif->rq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | int error; |
| 76 | |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 77 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | |
| 79 | switch (uptodate) { |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 80 | case 0: |
| 81 | error = IDEFLOPPY_ERROR_GENERAL; |
| 82 | break; |
| 83 | |
| 84 | case 1: |
| 85 | error = 0; |
| 86 | break; |
| 87 | |
| 88 | default: |
| 89 | error = uptodate; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | } |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 91 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | if (error) |
| 93 | floppy->failed_pc = NULL; |
| 94 | /* Why does this happen? */ |
| 95 | if (!rq) |
| 96 | return 0; |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 97 | if (!blk_special_request(rq)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | /* our real local end request function */ |
| 99 | ide_end_request(drive, uptodate, nsecs); |
| 100 | return 0; |
| 101 | } |
| 102 | rq->errors = error; |
| 103 | /* fixme: need to move this local also */ |
| 104 | ide_end_drive_cmd(drive, 0, 0); |
| 105 | return 0; |
| 106 | } |
| 107 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 108 | static void idefloppy_update_buffers(ide_drive_t *drive, |
| 109 | struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | { |
| 111 | struct request *rq = pc->rq; |
| 112 | struct bio *bio = rq->bio; |
| 113 | |
| 114 | while ((bio = rq->bio) != NULL) |
Bartlomiej Zolnierkiewicz | c84d9bb | 2008-10-17 18:09:13 +0200 | [diff] [blame] | 115 | ide_floppy_end_request(drive, 1, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | } |
| 117 | |
Bartlomiej Zolnierkiewicz | b14c721 | 2008-10-13 21:39:30 +0200 | [diff] [blame] | 118 | static void ide_floppy_callback(ide_drive_t *drive, int dsc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | { |
Bartlomiej Zolnierkiewicz | 0df9627 | 2008-10-17 18:09:16 +0200 | [diff] [blame] | 120 | struct ide_disk_obj *floppy = drive->driver_data; |
Bartlomiej Zolnierkiewicz | 2b9efba | 2008-10-13 21:39:31 +0200 | [diff] [blame] | 121 | struct ide_atapi_pc *pc = drive->pc; |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 122 | int uptodate = pc->error ? 0 : 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 124 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 125 | |
Bartlomiej Zolnierkiewicz | dd2e9a0 | 2008-07-15 21:22:01 +0200 | [diff] [blame] | 126 | if (floppy->failed_pc == pc) |
| 127 | floppy->failed_pc = NULL; |
| 128 | |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 129 | if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 || |
| 130 | (pc->rq && blk_pc_request(pc->rq))) |
| 131 | uptodate = 1; /* FIXME */ |
| 132 | else if (pc->c[0] == GPCMD_REQUEST_SENSE) { |
Bartlomiej Zolnierkiewicz | 2b9efba | 2008-10-13 21:39:31 +0200 | [diff] [blame] | 133 | u8 *buf = pc->buf; |
Borislav Petkov | a6ff2d3 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 134 | |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 135 | if (!pc->error) { |
| 136 | floppy->sense_key = buf[2] & 0x0F; |
| 137 | floppy->asc = buf[12]; |
| 138 | floppy->ascq = buf[13]; |
| 139 | floppy->progress_indication = buf[15] & 0x80 ? |
| 140 | (u16)get_unaligned((u16 *)&buf[16]) : 0x10000; |
| 141 | |
| 142 | if (floppy->failed_pc) |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 143 | ide_debug_log(IDE_DBG_PC, "pc = %x, ", |
| 144 | floppy->failed_pc->c[0]); |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 145 | |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 146 | ide_debug_log(IDE_DBG_SENSE, "sense key = %x, asc = %x," |
| 147 | "ascq = %x\n", floppy->sense_key, |
| 148 | floppy->asc, floppy->ascq); |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 149 | } else |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 150 | printk(KERN_ERR PFX "Error in REQUEST SENSE itself - " |
| 151 | "Aborting request!\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | |
Bartlomiej Zolnierkiewicz | c84d9bb | 2008-10-17 18:09:13 +0200 | [diff] [blame] | 154 | ide_floppy_end_request(drive, uptodate, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | } |
| 156 | |
Bartlomiej Zolnierkiewicz | 0df9627 | 2008-10-17 18:09:16 +0200 | [diff] [blame] | 157 | static void ide_floppy_report_error(struct ide_disk_obj *floppy, |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 158 | struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | { |
Borislav Petkov | d652c13 | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 160 | /* supress error messages resulting from Medium not present */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | if (floppy->sense_key == 0x02 && |
| 162 | floppy->asc == 0x3a && |
| 163 | floppy->ascq == 0x00) |
Borislav Petkov | d652c13 | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 164 | return; |
| 165 | |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 166 | printk(KERN_ERR PFX "%s: I/O error, pc = %2x, key = %2x, " |
Borislav Petkov | d652c13 | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 167 | "asc = %2x, ascq = %2x\n", |
| 168 | floppy->drive->name, pc->c[0], floppy->sense_key, |
| 169 | floppy->asc, floppy->ascq); |
| 170 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | } |
| 172 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 173 | static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive, |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 174 | struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | { |
Bartlomiej Zolnierkiewicz | 0df9627 | 2008-10-17 18:09:16 +0200 | [diff] [blame] | 176 | struct ide_disk_obj *floppy = drive->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | if (floppy->failed_pc == NULL && |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 179 | pc->c[0] != GPCMD_REQUEST_SENSE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | floppy->failed_pc = pc; |
Bartlomiej Zolnierkiewicz | 2b9efba | 2008-10-13 21:39:31 +0200 | [diff] [blame] | 181 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | /* Set the current packet command */ |
Bartlomiej Zolnierkiewicz | 2b9efba | 2008-10-13 21:39:31 +0200 | [diff] [blame] | 183 | drive->pc = pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | |
Borislav Petkov | 757ced8 | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 185 | if (pc->retries > IDEFLOPPY_MAX_PC_RETRIES) { |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 186 | if (!(pc->flags & PC_FLAG_SUPPRESS_ERROR)) |
Borislav Petkov | 757ced8 | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 187 | ide_floppy_report_error(floppy, pc); |
| 188 | /* Giving up */ |
| 189 | pc->error = IDEFLOPPY_ERROR_GENERAL; |
| 190 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | floppy->failed_pc = NULL; |
Bartlomiej Zolnierkiewicz | b14c721 | 2008-10-13 21:39:30 +0200 | [diff] [blame] | 192 | drive->pc_callback(drive, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | return ide_stopped; |
| 194 | } |
| 195 | |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 196 | ide_debug_log(IDE_DBG_FUNC, "%s: Retry #%d\n", __func__, pc->retries); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | |
| 198 | pc->retries++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | |
Borislav Petkov | 28ad91d | 2009-01-02 16:12:56 +0100 | [diff] [blame] | 200 | return ide_issue_pc(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | } |
| 202 | |
Bartlomiej Zolnierkiewicz | 0127854 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 203 | void ide_floppy_create_read_capacity_cmd(struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | { |
Bartlomiej Zolnierkiewicz | 7bf7420 | 2008-10-10 22:39:37 +0200 | [diff] [blame] | 205 | ide_init_pc(pc); |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 206 | pc->c[0] = GPCMD_READ_FORMAT_CAPACITIES; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | pc->c[7] = 255; |
| 208 | pc->c[8] = 255; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 209 | pc->req_xfer = 255; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | } |
| 211 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 212 | /* A mode sense command is used to "sense" floppy parameters. */ |
Bartlomiej Zolnierkiewicz | 0127854 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 213 | void ide_floppy_create_mode_sense_cmd(struct ide_atapi_pc *pc, u8 page_code) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | { |
Borislav Petkov | 24a5d70 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 215 | u16 length = 8; /* sizeof(Mode Parameter Header) = 8 Bytes */ |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 216 | |
Bartlomiej Zolnierkiewicz | 7bf7420 | 2008-10-10 22:39:37 +0200 | [diff] [blame] | 217 | ide_init_pc(pc); |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 218 | pc->c[0] = GPCMD_MODE_SENSE_10; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | pc->c[1] = 0; |
Bartlomiej Zolnierkiewicz | 4de4b9e | 2008-10-10 22:39:36 +0200 | [diff] [blame] | 220 | pc->c[2] = page_code; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | |
| 222 | switch (page_code) { |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 223 | case IDEFLOPPY_CAPABILITIES_PAGE: |
| 224 | length += 12; |
| 225 | break; |
| 226 | case IDEFLOPPY_FLEXIBLE_DISK_PAGE: |
| 227 | length += 32; |
| 228 | break; |
| 229 | default: |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 230 | printk(KERN_ERR PFX "unsupported page code in %s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | } |
Borislav Petkov | 8f62243 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 232 | put_unaligned(cpu_to_be16(length), (u16 *) &pc->c[7]); |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 233 | pc->req_xfer = length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | } |
| 235 | |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 236 | static void idefloppy_create_rw_cmd(ide_drive_t *drive, |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 237 | struct ide_atapi_pc *pc, struct request *rq, |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 238 | unsigned long sector) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | { |
Bartlomiej Zolnierkiewicz | 0df9627 | 2008-10-17 18:09:16 +0200 | [diff] [blame] | 240 | struct ide_disk_obj *floppy = drive->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | int block = sector / floppy->bs_factor; |
| 242 | int blocks = rq->nr_sectors / floppy->bs_factor; |
| 243 | int cmd = rq_data_dir(rq); |
| 244 | |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 245 | ide_debug_log(IDE_DBG_FUNC, "%s: block: %d, blocks: %d\n", __func__, |
| 246 | block, blocks); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | |
Bartlomiej Zolnierkiewicz | 7bf7420 | 2008-10-10 22:39:37 +0200 | [diff] [blame] | 248 | ide_init_pc(pc); |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 249 | pc->c[0] = cmd == READ ? GPCMD_READ_10 : GPCMD_WRITE_10; |
| 250 | put_unaligned(cpu_to_be16(blocks), (unsigned short *)&pc->c[7]); |
Borislav Petkov | 8f62243 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 251 | put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[2]); |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 252 | |
Borislav Petkov | 20cd93be | 2008-07-23 19:56:00 +0200 | [diff] [blame] | 253 | memcpy(rq->cmd, pc->c, 12); |
| 254 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | pc->rq = rq; |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 256 | pc->b_count = 0; |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 257 | if (rq->cmd_flags & REQ_RW) |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 258 | pc->flags |= PC_FLAG_WRITING; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 259 | pc->buf = NULL; |
| 260 | pc->req_xfer = pc->buf_size = blocks * floppy->block_size; |
Bartlomiej Zolnierkiewicz | 5e33109 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 261 | pc->flags |= PC_FLAG_DMA_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | } |
| 263 | |
Bartlomiej Zolnierkiewicz | 0df9627 | 2008-10-17 18:09:16 +0200 | [diff] [blame] | 264 | static void idefloppy_blockpc_cmd(struct ide_disk_obj *floppy, |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 265 | struct ide_atapi_pc *pc, struct request *rq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | { |
Bartlomiej Zolnierkiewicz | 7bf7420 | 2008-10-10 22:39:37 +0200 | [diff] [blame] | 267 | ide_init_pc(pc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | memcpy(pc->c, rq->cmd, sizeof(pc->c)); |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 269 | pc->rq = rq; |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 270 | pc->b_count = 0; |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 271 | if (rq->data_len && rq_data_dir(rq) == WRITE) |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 272 | pc->flags |= PC_FLAG_WRITING; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 273 | pc->buf = rq->data; |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 274 | if (rq->bio) |
Bartlomiej Zolnierkiewicz | 5e33109 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 275 | pc->flags |= PC_FLAG_DMA_OK; |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 276 | /* |
| 277 | * possibly problematic, doesn't look like ide-floppy correctly |
| 278 | * handled scattered requests if dma fails... |
| 279 | */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 280 | pc->req_xfer = pc->buf_size = rq->data_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | } |
| 282 | |
Bartlomiej Zolnierkiewicz | 806f80a | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 283 | static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive, |
| 284 | struct request *rq, sector_t block) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | { |
Bartlomiej Zolnierkiewicz | 0df9627 | 2008-10-17 18:09:16 +0200 | [diff] [blame] | 286 | struct ide_disk_obj *floppy = drive->driver_data; |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 287 | ide_hwif_t *hwif = drive->hwif; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 288 | struct ide_atapi_pc *pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 290 | ide_debug_log(IDE_DBG_FUNC, "%s: dev: %s, cmd: 0x%x, cmd_type: %x, " |
| 291 | "errors: %d\n", |
| 292 | __func__, rq->rq_disk ? rq->rq_disk->disk_name : "?", |
| 293 | rq->cmd[0], rq->cmd_type, rq->errors); |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 294 | |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 295 | ide_debug_log(IDE_DBG_FUNC, "%s: sector: %ld, nr_sectors: %ld, " |
| 296 | "current_nr_sectors: %d\n", |
| 297 | __func__, (long)rq->sector, rq->nr_sectors, |
| 298 | rq->current_nr_sectors); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | |
| 300 | if (rq->errors >= ERROR_MAX) { |
Borislav Petkov | d652c13 | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 301 | if (floppy->failed_pc) |
| 302 | ide_floppy_report_error(floppy, floppy->failed_pc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | else |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 304 | printk(KERN_ERR PFX "%s: I/O error\n", drive->name); |
| 305 | |
Bartlomiej Zolnierkiewicz | c84d9bb | 2008-10-17 18:09:13 +0200 | [diff] [blame] | 306 | ide_floppy_end_request(drive, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | return ide_stopped; |
| 308 | } |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 309 | if (blk_fs_request(rq)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | if (((long)rq->sector % floppy->bs_factor) || |
| 311 | (rq->nr_sectors % floppy->bs_factor)) { |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 312 | printk(KERN_ERR PFX "%s: unsupported r/w rq size\n", |
| 313 | drive->name); |
Bartlomiej Zolnierkiewicz | c84d9bb | 2008-10-17 18:09:13 +0200 | [diff] [blame] | 314 | ide_floppy_end_request(drive, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | return ide_stopped; |
| 316 | } |
Bartlomiej Zolnierkiewicz | 2e8a6f8 | 2008-10-10 22:39:36 +0200 | [diff] [blame] | 317 | pc = &floppy->queued_pc; |
Bartlomiej Zolnierkiewicz | 806f80a | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 318 | idefloppy_create_rw_cmd(drive, pc, rq, (unsigned long)block); |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 319 | } else if (blk_special_request(rq)) { |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 320 | pc = (struct ide_atapi_pc *) rq->buffer; |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 321 | } else if (blk_pc_request(rq)) { |
Bartlomiej Zolnierkiewicz | 2e8a6f8 | 2008-10-10 22:39:36 +0200 | [diff] [blame] | 322 | pc = &floppy->queued_pc; |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 323 | idefloppy_blockpc_cmd(floppy, pc, rq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | } else { |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 325 | blk_dump_rq_flags(rq, PFX "unsupported command in queue"); |
Bartlomiej Zolnierkiewicz | c84d9bb | 2008-10-17 18:09:13 +0200 | [diff] [blame] | 326 | ide_floppy_end_request(drive, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | return ide_stopped; |
| 328 | } |
| 329 | |
Borislav Petkov | 3eb76c1 | 2009-03-13 21:16:12 +0100 | [diff] [blame] | 330 | if (blk_fs_request(rq) || pc->req_xfer) { |
| 331 | ide_init_sg_cmd(drive, rq); |
| 332 | ide_map_sg(drive, rq); |
| 333 | } |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 334 | |
| 335 | pc->sg = hwif->sg_table; |
| 336 | pc->sg_cnt = hwif->sg_nents; |
| 337 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | pc->rq = rq; |
Bartlomiej Zolnierkiewicz | 5d41893 | 2008-07-15 21:21:57 +0200 | [diff] [blame] | 339 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | return idefloppy_issue_pc(drive, pc); |
| 341 | } |
| 342 | |
| 343 | /* |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 344 | * Look at the flexible disk page parameters. We ignore the CHS capacity |
| 345 | * parameters and use the LBA parameters instead. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | */ |
Linus Torvalds | 07bd3f4 | 2009-01-02 16:12:51 +0100 | [diff] [blame] | 347 | static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive, |
| 348 | struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | { |
Bartlomiej Zolnierkiewicz | 0df9627 | 2008-10-17 18:09:16 +0200 | [diff] [blame] | 350 | struct ide_disk_obj *floppy = drive->driver_data; |
Bartlomiej Zolnierkiewicz | 2ac07d9 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 351 | struct gendisk *disk = floppy->disk; |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 352 | u8 *page; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | int capacity, lba_capacity; |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 354 | u16 transfer_rate, sector_size, cyls, rpm; |
| 355 | u8 heads, sectors; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | |
Linus Torvalds | 07bd3f4 | 2009-01-02 16:12:51 +0100 | [diff] [blame] | 357 | ide_floppy_create_mode_sense_cmd(pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE); |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 358 | |
Linus Torvalds | 07bd3f4 | 2009-01-02 16:12:51 +0100 | [diff] [blame] | 359 | if (ide_queue_pc_tail(drive, disk, pc)) { |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 360 | printk(KERN_ERR PFX "Can't get flexible disk page params\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | return 1; |
| 362 | } |
Bartlomiej Zolnierkiewicz | 49cac39 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 363 | |
Linus Torvalds | 07bd3f4 | 2009-01-02 16:12:51 +0100 | [diff] [blame] | 364 | if (pc->buf[3] & 0x80) |
Bartlomiej Zolnierkiewicz | da16787 | 2008-10-17 18:09:11 +0200 | [diff] [blame] | 365 | drive->dev_flags |= IDE_DFLAG_WP; |
Bartlomiej Zolnierkiewicz | 49cac39 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 366 | else |
Bartlomiej Zolnierkiewicz | da16787 | 2008-10-17 18:09:11 +0200 | [diff] [blame] | 367 | drive->dev_flags &= ~IDE_DFLAG_WP; |
Bartlomiej Zolnierkiewicz | 49cac39 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 368 | |
Bartlomiej Zolnierkiewicz | da16787 | 2008-10-17 18:09:11 +0200 | [diff] [blame] | 369 | set_disk_ro(disk, !!(drive->dev_flags & IDE_DFLAG_WP)); |
Bartlomiej Zolnierkiewicz | 49cac39 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 370 | |
Linus Torvalds | 07bd3f4 | 2009-01-02 16:12:51 +0100 | [diff] [blame] | 371 | page = &pc->buf[8]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | |
Linus Torvalds | 07bd3f4 | 2009-01-02 16:12:51 +0100 | [diff] [blame] | 373 | transfer_rate = be16_to_cpup((__be16 *)&pc->buf[8 + 2]); |
| 374 | sector_size = be16_to_cpup((__be16 *)&pc->buf[8 + 6]); |
| 375 | cyls = be16_to_cpup((__be16 *)&pc->buf[8 + 8]); |
| 376 | rpm = be16_to_cpup((__be16 *)&pc->buf[8 + 28]); |
| 377 | heads = pc->buf[8 + 4]; |
| 378 | sectors = pc->buf[8 + 5]; |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 379 | |
| 380 | capacity = cyls * heads * sectors * sector_size; |
| 381 | |
| 382 | if (memcmp(page, &floppy->flexible_disk_page, 32)) |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 383 | printk(KERN_INFO PFX "%s: %dkB, %d/%d/%d CHS, %d kBps, " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | "%d sector size, %d rpm\n", |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 385 | drive->name, capacity / 1024, cyls, heads, |
| 386 | sectors, transfer_rate / 8, sector_size, rpm); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 388 | memcpy(&floppy->flexible_disk_page, page, 32); |
| 389 | drive->bios_cyl = cyls; |
| 390 | drive->bios_head = heads; |
| 391 | drive->bios_sect = sectors; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | lba_capacity = floppy->blocks * floppy->block_size; |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 393 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | if (capacity < lba_capacity) { |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 395 | printk(KERN_NOTICE PFX "%s: The disk reports a capacity of %d " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | "bytes, but the drive only handles %d\n", |
| 397 | drive->name, lba_capacity, capacity); |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 398 | floppy->blocks = floppy->block_size ? |
| 399 | capacity / floppy->block_size : 0; |
Bartlomiej Zolnierkiewicz | 6f84083 | 2008-10-17 18:09:10 +0200 | [diff] [blame] | 400 | drive->capacity64 = floppy->blocks * floppy->bs_factor; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | } |
Bartlomiej Zolnierkiewicz | 6f84083 | 2008-10-17 18:09:10 +0200 | [diff] [blame] | 402 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | return 0; |
| 404 | } |
| 405 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | /* |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 407 | * Determine if a media is present in the floppy drive, and if so, its LBA |
| 408 | * capacity. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | */ |
Bartlomiej Zolnierkiewicz | 806f80a | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 410 | static int ide_floppy_get_capacity(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | { |
Bartlomiej Zolnierkiewicz | 0df9627 | 2008-10-17 18:09:16 +0200 | [diff] [blame] | 412 | struct ide_disk_obj *floppy = drive->driver_data; |
Bartlomiej Zolnierkiewicz | 2ac07d9 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 413 | struct gendisk *disk = floppy->disk; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 414 | struct ide_atapi_pc pc; |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 415 | u8 *cap_desc; |
| 416 | u8 header_len, desc_cnt; |
| 417 | int i, rc = 1, blocks, length; |
| 418 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | drive->bios_cyl = 0; |
| 420 | drive->bios_head = drive->bios_sect = 0; |
Alan Cox | fdb77da | 2007-02-17 02:40:20 +0100 | [diff] [blame] | 421 | floppy->blocks = 0; |
| 422 | floppy->bs_factor = 1; |
Bartlomiej Zolnierkiewicz | 6f84083 | 2008-10-17 18:09:10 +0200 | [diff] [blame] | 423 | drive->capacity64 = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | |
Bartlomiej Zolnierkiewicz | 0127854 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 425 | ide_floppy_create_read_capacity_cmd(&pc); |
Bartlomiej Zolnierkiewicz | 2ac07d9 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 426 | if (ide_queue_pc_tail(drive, disk, &pc)) { |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 427 | printk(KERN_ERR PFX "Can't get floppy parameters\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | return 1; |
| 429 | } |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 430 | header_len = pc.buf[3]; |
| 431 | cap_desc = &pc.buf[4]; |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 432 | desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 434 | for (i = 0; i < desc_cnt; i++) { |
| 435 | unsigned int desc_start = 4 + i*8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | |
Harvey Harrison | 85ae98a3 | 2008-07-16 20:33:47 +0200 | [diff] [blame] | 437 | blocks = be32_to_cpup((__be32 *)&pc.buf[desc_start]); |
| 438 | length = be16_to_cpup((__be16 *)&pc.buf[desc_start + 6]); |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 439 | |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 440 | ide_debug_log(IDE_DBG_PROBE, "Descriptor %d: %dkB, %d blocks, " |
| 441 | "%d sector size\n", |
| 442 | i, blocks * length / 1024, blocks, length); |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 443 | |
| 444 | if (i) |
| 445 | continue; |
| 446 | /* |
| 447 | * the code below is valid only for the 1st descriptor, ie i=0 |
| 448 | */ |
| 449 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 450 | switch (pc.buf[desc_start + 4] & 0x03) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | /* Clik! drive returns this instead of CAPACITY_CURRENT */ |
| 452 | case CAPACITY_UNFORMATTED: |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 453 | if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 454 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | * If it is not a clik drive, break out |
| 456 | * (maintains previous driver behaviour) |
| 457 | */ |
| 458 | break; |
| 459 | case CAPACITY_CURRENT: |
| 460 | /* Normal Zip/LS-120 disks */ |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 461 | if (memcmp(cap_desc, &floppy->cap_desc, 8)) |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 462 | printk(KERN_INFO PFX "%s: %dkB, %d blocks, %d " |
| 463 | "sector size\n", |
| 464 | drive->name, blocks * length / 1024, |
| 465 | blocks, length); |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 466 | memcpy(&floppy->cap_desc, cap_desc, 8); |
| 467 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 468 | if (!length || length % 512) { |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 469 | printk(KERN_NOTICE PFX "%s: %d bytes block size" |
| 470 | " not supported\n", drive->name, length); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | } else { |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 472 | floppy->blocks = blocks; |
| 473 | floppy->block_size = length; |
| 474 | floppy->bs_factor = length / 512; |
| 475 | if (floppy->bs_factor != 1) |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 476 | printk(KERN_NOTICE PFX "%s: Warning: " |
| 477 | "non 512 bytes block size not " |
| 478 | "fully supported\n", |
| 479 | drive->name); |
Bartlomiej Zolnierkiewicz | 6f84083 | 2008-10-17 18:09:10 +0200 | [diff] [blame] | 480 | drive->capacity64 = |
| 481 | floppy->blocks * floppy->bs_factor; |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 482 | rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | } |
| 484 | break; |
| 485 | case CAPACITY_NO_CARTRIDGE: |
| 486 | /* |
| 487 | * This is a KERN_ERR so it appears on screen |
| 488 | * for the user to see |
| 489 | */ |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 490 | printk(KERN_ERR PFX "%s: No disk in drive\n", |
| 491 | drive->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 492 | break; |
| 493 | case CAPACITY_INVALID: |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 494 | printk(KERN_ERR PFX "%s: Invalid capacity for disk " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | "in drive\n", drive->name); |
| 496 | break; |
| 497 | } |
Borislav Petkov | 7b35572 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 498 | ide_debug_log(IDE_DBG_PROBE, "Descriptor 0 Code: %d\n", |
| 499 | pc.buf[desc_start + 4] & 0x03); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | } |
| 501 | |
| 502 | /* Clik! disk does not support get_flexible_disk_page */ |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 503 | if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) |
Linus Torvalds | 07bd3f4 | 2009-01-02 16:12:51 +0100 | [diff] [blame] | 504 | (void) ide_floppy_get_flexible_disk_page(drive, &pc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | return rc; |
| 507 | } |
| 508 | |
Bartlomiej Zolnierkiewicz | 806f80a | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 509 | static void ide_floppy_setup(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | { |
Bartlomiej Zolnierkiewicz | 806f80a | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 511 | struct ide_disk_obj *floppy = drive->driver_data; |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 512 | u16 *id = drive->id; |
Bartlomiej Zolnierkiewicz | 2e8a6f8 | 2008-10-10 22:39:36 +0200 | [diff] [blame] | 513 | |
Bartlomiej Zolnierkiewicz | 85e3903 | 2008-10-13 21:39:32 +0200 | [diff] [blame] | 514 | drive->pc_callback = ide_floppy_callback; |
| 515 | drive->pc_update_buffers = idefloppy_update_buffers; |
| 516 | drive->pc_io_buffers = ide_io_buffers; |
Borislav Petkov | 3ad6776 | 2008-04-18 00:46:25 +0200 | [diff] [blame] | 517 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 518 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 519 | * We used to check revisions here. At this point however I'm giving up. |
| 520 | * Just assume they are all broken, its easier. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | * |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 522 | * The actual reason for the workarounds was likely a driver bug after |
| 523 | * all rather than a firmware bug, and the workaround below used to hide |
| 524 | * it. It should be fixed as of version 1.9, but to be on the safe side |
| 525 | * we'll leave the limitation below for the 2.2.x tree. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | */ |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 527 | if (!strncmp((char *)&id[ATA_ID_PROD], "IOMEGA ZIP 100 ATAPI", 20)) { |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 528 | drive->atapi_flags |= IDE_AFLAG_ZIP_DRIVE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | /* This value will be visible in the /proc/ide/hdx/settings */ |
Bartlomiej Zolnierkiewicz | baf08f0 | 2008-10-13 21:39:32 +0200 | [diff] [blame] | 530 | drive->pc_delay = IDEFLOPPY_PC_DELAY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | blk_queue_max_sectors(drive->queue, 64); |
| 532 | } |
| 533 | |
| 534 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 535 | * Guess what? The IOMEGA Clik! drive also needs the above fix. It makes |
| 536 | * nasty clicking noises without it, so please don't remove this. |
| 537 | */ |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 538 | if (strncmp((char *)&id[ATA_ID_PROD], "IOMEGA Clik!", 11) == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | blk_queue_max_sectors(drive->queue, 64); |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 540 | drive->atapi_flags |= IDE_AFLAG_CLIK_DRIVE; |
Bartlomiej Zolnierkiewicz | 0578042 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 541 | /* IOMEGA Clik! drives do not support lock/unlock commands */ |
Bartlomiej Zolnierkiewicz | 42619d3 | 2008-10-17 18:09:11 +0200 | [diff] [blame] | 542 | drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | } |
| 544 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 545 | (void) ide_floppy_get_capacity(drive); |
Bartlomiej Zolnierkiewicz | 1e874f4 | 2008-10-10 22:39:27 +0200 | [diff] [blame] | 546 | |
| 547 | ide_proc_register_driver(drive, floppy->driver); |
Bartlomiej Zolnierkiewicz | ae9f9f0 | 2008-10-17 18:09:10 +0200 | [diff] [blame] | 548 | |
| 549 | drive->dev_flags |= IDE_DFLAG_ATTACH; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | } |
Bartlomiej Zolnierkiewicz | 806f80a | 2008-10-17 18:09:14 +0200 | [diff] [blame] | 551 | |
| 552 | static void ide_floppy_flush(ide_drive_t *drive) |
| 553 | { |
| 554 | } |
| 555 | |
| 556 | static int ide_floppy_init_media(ide_drive_t *drive, struct gendisk *disk) |
| 557 | { |
| 558 | int ret = 0; |
| 559 | |
| 560 | if (ide_do_test_unit_ready(drive, disk)) |
| 561 | ide_do_start_stop(drive, disk, 1); |
| 562 | |
| 563 | ret = ide_floppy_get_capacity(drive); |
| 564 | |
| 565 | set_capacity(disk, ide_gd_capacity(drive)); |
| 566 | |
| 567 | return ret; |
| 568 | } |
| 569 | |
| 570 | const struct ide_disk_ops ide_atapi_disk_ops = { |
| 571 | .check = ide_check_atapi_device, |
| 572 | .get_capacity = ide_floppy_get_capacity, |
| 573 | .setup = ide_floppy_setup, |
| 574 | .flush = ide_floppy_flush, |
| 575 | .init_media = ide_floppy_init_media, |
| 576 | .set_doorlock = ide_set_media_lock, |
| 577 | .do_request = ide_floppy_do_request, |
| 578 | .end_request = ide_floppy_end_request, |
| 579 | .ioctl = ide_floppy_ioctl, |
| 580 | }; |