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 | |
Bartlomiej Zolnierkiewicz | 51509ee | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 18 | #define DRV_NAME "ide-floppy" |
| 19 | |
Borislav Petkov | fc6c5bc | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 20 | #define IDEFLOPPY_VERSION "1.00" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | #include <linux/module.h> |
| 23 | #include <linux/types.h> |
| 24 | #include <linux/string.h> |
| 25 | #include <linux/kernel.h> |
| 26 | #include <linux/delay.h> |
| 27 | #include <linux/timer.h> |
| 28 | #include <linux/mm.h> |
| 29 | #include <linux/interrupt.h> |
| 30 | #include <linux/major.h> |
| 31 | #include <linux/errno.h> |
| 32 | #include <linux/genhd.h> |
| 33 | #include <linux/slab.h> |
| 34 | #include <linux/cdrom.h> |
| 35 | #include <linux/ide.h> |
Bartlomiej Zolnierkiewicz | 3ceca72 | 2008-10-10 22:39:27 +0200 | [diff] [blame] | 36 | #include <linux/hdreg.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | #include <linux/bitops.h> |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 38 | #include <linux/mutex.h> |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 39 | #include <linux/scatterlist.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | |
Bartlomiej Zolnierkiewicz | 89636af | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 41 | #include <scsi/scsi_ioctl.h> |
| 42 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | #include <asm/byteorder.h> |
Borislav Petkov | 7e8b163 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 44 | #include <linux/irq.h> |
| 45 | #include <linux/uaccess.h> |
| 46 | #include <linux/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | #include <asm/unaligned.h> |
| 48 | |
Bartlomiej Zolnierkiewicz | 0127854 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 49 | #include "ide-floppy.h" |
| 50 | |
Borislav Petkov | f373bd8 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 51 | /* define to see debug info */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | #define IDEFLOPPY_DEBUG_LOG 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | |
| 54 | /* #define IDEFLOPPY_DEBUG(fmt, args...) printk(KERN_INFO fmt, ## args) */ |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 55 | #define IDEFLOPPY_DEBUG(fmt, args...) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | |
| 57 | #if IDEFLOPPY_DEBUG_LOG |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 58 | #define debug_log(fmt, args...) \ |
| 59 | printk(KERN_INFO "ide-floppy: " fmt, ## args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | #else |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 61 | #define debug_log(fmt, args...) do {} while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | #endif |
| 63 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 65 | * After each failed packet command we issue a request sense command and retry |
| 66 | * the packet command IDEFLOPPY_MAX_PC_RETRIES times. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | */ |
| 68 | #define IDEFLOPPY_MAX_PC_RETRIES 3 |
| 69 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 70 | /* format capacities descriptor codes */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | #define CAPACITY_INVALID 0x00 |
| 72 | #define CAPACITY_UNFORMATTED 0x01 |
| 73 | #define CAPACITY_CURRENT 0x02 |
| 74 | #define CAPACITY_NO_CARTRIDGE 0x03 |
| 75 | |
Bartlomiej Zolnierkiewicz | c40d3d3 | 2005-08-18 22:09:21 +0200 | [diff] [blame] | 76 | #define IDEFLOPPY_TICKS_DELAY HZ/20 /* default delay for ZIP 100 (50ms) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 78 | /* 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] | 79 | #define IDEFLOPPY_ERROR_GENERAL 101 |
| 80 | |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 81 | static DEFINE_MUTEX(idefloppy_ref_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | |
| 83 | #define to_ide_floppy(obj) container_of(obj, struct ide_floppy_obj, kref) |
| 84 | |
| 85 | #define ide_floppy_g(disk) \ |
| 86 | container_of((disk)->private_data, struct ide_floppy_obj, driver) |
| 87 | |
Bartlomiej Zolnierkiewicz | 08da591 | 2008-07-24 22:53:15 +0200 | [diff] [blame] | 88 | static void idefloppy_cleanup_obj(struct kref *); |
| 89 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | static struct ide_floppy_obj *ide_floppy_get(struct gendisk *disk) |
| 91 | { |
| 92 | struct ide_floppy_obj *floppy = NULL; |
| 93 | |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 94 | mutex_lock(&idefloppy_ref_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | floppy = ide_floppy_g(disk); |
Bartlomiej Zolnierkiewicz | 08da591 | 2008-07-24 22:53:15 +0200 | [diff] [blame] | 96 | if (floppy) { |
Bartlomiej Zolnierkiewicz | d3e33ff | 2008-08-05 18:16:59 +0200 | [diff] [blame] | 97 | if (ide_device_get(floppy->drive)) |
Bartlomiej Zolnierkiewicz | 08da591 | 2008-07-24 22:53:15 +0200 | [diff] [blame] | 98 | floppy = NULL; |
Bartlomiej Zolnierkiewicz | d3e33ff | 2008-08-05 18:16:59 +0200 | [diff] [blame] | 99 | else |
| 100 | kref_get(&floppy->kref); |
Bartlomiej Zolnierkiewicz | 08da591 | 2008-07-24 22:53:15 +0200 | [diff] [blame] | 101 | } |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 102 | mutex_unlock(&idefloppy_ref_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | return floppy; |
| 104 | } |
| 105 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | static void ide_floppy_put(struct ide_floppy_obj *floppy) |
| 107 | { |
Bartlomiej Zolnierkiewicz | d3e33ff | 2008-08-05 18:16:59 +0200 | [diff] [blame] | 108 | ide_drive_t *drive = floppy->drive; |
| 109 | |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 110 | mutex_lock(&idefloppy_ref_mutex); |
Borislav Petkov | 9a24b63 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 111 | kref_put(&floppy->kref, idefloppy_cleanup_obj); |
Bartlomiej Zolnierkiewicz | d3e33ff | 2008-08-05 18:16:59 +0200 | [diff] [blame] | 112 | ide_device_put(drive); |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 113 | mutex_unlock(&idefloppy_ref_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | } |
| 115 | |
| 116 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 117 | * Used to finish servicing a request. For read/write requests, we will call |
| 118 | * ide_end_request to pass to the next buffer. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | */ |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 120 | static int idefloppy_end_request(ide_drive_t *drive, int uptodate, int nsecs) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | { |
| 122 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 123 | struct request *rq = HWGROUP(drive)->rq; |
| 124 | int error; |
| 125 | |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 126 | debug_log("Reached %s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | |
| 128 | switch (uptodate) { |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 129 | case 0: error = IDEFLOPPY_ERROR_GENERAL; break; |
| 130 | case 1: error = 0; break; |
| 131 | default: error = uptodate; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | } |
| 133 | if (error) |
| 134 | floppy->failed_pc = NULL; |
| 135 | /* Why does this happen? */ |
| 136 | if (!rq) |
| 137 | return 0; |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 138 | if (!blk_special_request(rq)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | /* our real local end request function */ |
| 140 | ide_end_request(drive, uptodate, nsecs); |
| 141 | return 0; |
| 142 | } |
| 143 | rq->errors = error; |
| 144 | /* fixme: need to move this local also */ |
| 145 | ide_end_drive_cmd(drive, 0, 0); |
| 146 | return 0; |
| 147 | } |
| 148 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 149 | static void idefloppy_update_buffers(ide_drive_t *drive, |
| 150 | struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | { |
| 152 | struct request *rq = pc->rq; |
| 153 | struct bio *bio = rq->bio; |
| 154 | |
| 155 | while ((bio = rq->bio) != NULL) |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 156 | idefloppy_end_request(drive, 1, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | } |
| 158 | |
Bartlomiej Zolnierkiewicz | b14c721 | 2008-10-13 21:39:30 +0200 | [diff] [blame] | 159 | static void ide_floppy_callback(ide_drive_t *drive, int dsc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | { |
| 161 | idefloppy_floppy_t *floppy = drive->driver_data; |
Bartlomiej Zolnierkiewicz | 2b9efba | 2008-10-13 21:39:31 +0200 | [diff] [blame^] | 162 | struct ide_atapi_pc *pc = drive->pc; |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 163 | int uptodate = pc->error ? 0 : 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 165 | debug_log("Reached %s\n", __func__); |
| 166 | |
Bartlomiej Zolnierkiewicz | dd2e9a0 | 2008-07-15 21:22:01 +0200 | [diff] [blame] | 167 | if (floppy->failed_pc == pc) |
| 168 | floppy->failed_pc = NULL; |
| 169 | |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 170 | if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 || |
| 171 | (pc->rq && blk_pc_request(pc->rq))) |
| 172 | uptodate = 1; /* FIXME */ |
| 173 | else if (pc->c[0] == GPCMD_REQUEST_SENSE) { |
Bartlomiej Zolnierkiewicz | 2b9efba | 2008-10-13 21:39:31 +0200 | [diff] [blame^] | 174 | u8 *buf = pc->buf; |
Borislav Petkov | a6ff2d3 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 175 | |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 176 | if (!pc->error) { |
| 177 | floppy->sense_key = buf[2] & 0x0F; |
| 178 | floppy->asc = buf[12]; |
| 179 | floppy->ascq = buf[13]; |
| 180 | floppy->progress_indication = buf[15] & 0x80 ? |
| 181 | (u16)get_unaligned((u16 *)&buf[16]) : 0x10000; |
| 182 | |
| 183 | if (floppy->failed_pc) |
| 184 | debug_log("pc = %x, ", floppy->failed_pc->c[0]); |
| 185 | |
Borislav Petkov | a6ff2d3 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 186 | debug_log("sense key = %x, asc = %x, ascq = %x\n", |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 187 | floppy->sense_key, floppy->asc, floppy->ascq); |
| 188 | } else |
| 189 | printk(KERN_ERR "Error in REQUEST SENSE itself - " |
| 190 | "Aborting request!\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 193 | idefloppy_end_request(drive, uptodate, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | } |
| 195 | |
Bartlomiej Zolnierkiewicz | 0127854 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 196 | void ide_floppy_create_request_sense_cmd(struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | { |
Bartlomiej Zolnierkiewicz | 7bf7420 | 2008-10-10 22:39:37 +0200 | [diff] [blame] | 198 | ide_init_pc(pc); |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 199 | pc->c[0] = GPCMD_REQUEST_SENSE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | pc->c[4] = 255; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 201 | pc->req_xfer = 18; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | } |
| 203 | |
| 204 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 205 | * Called when an error was detected during the last packet command. We queue a |
| 206 | * request sense packet command in the head of the request list. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | */ |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 208 | static void idefloppy_retry_pc(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | { |
Bartlomiej Zolnierkiewicz | 394a4c2 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 210 | struct ide_floppy_obj *floppy = drive->driver_data; |
| 211 | struct request *rq = &floppy->request_sense_rq; |
Bartlomiej Zolnierkiewicz | 2e8a6f8 | 2008-10-10 22:39:36 +0200 | [diff] [blame] | 212 | struct ide_atapi_pc *pc = &floppy->request_sense_pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | |
Bartlomiej Zolnierkiewicz | 64a57fe | 2008-02-06 02:57:51 +0100 | [diff] [blame] | 214 | (void)ide_read_error(drive); |
Bartlomiej Zolnierkiewicz | 0127854 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 215 | ide_floppy_create_request_sense_cmd(pc); |
Bartlomiej Zolnierkiewicz | 7645c15 | 2008-10-10 22:39:37 +0200 | [diff] [blame] | 216 | ide_queue_pc_head(drive, floppy->disk, pc, rq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | } |
| 218 | |
Borislav Petkov | 0eea645 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 219 | /* The usual interrupt handler called during a packet command. */ |
Paolo Ciarrocchi | 52d3ccf | 2008-04-26 17:36:41 +0200 | [diff] [blame] | 220 | static ide_startstop_t idefloppy_pc_intr(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | { |
Bartlomiej Zolnierkiewicz | 2b9efba | 2008-10-13 21:39:31 +0200 | [diff] [blame^] | 222 | return ide_pc_intr(drive, idefloppy_pc_intr, |
Bartlomiej Zolnierkiewicz | d6e2955 | 2008-10-10 22:39:39 +0200 | [diff] [blame] | 223 | WAIT_FLOPPY_CMD, NULL, idefloppy_update_buffers, |
Bartlomiej Zolnierkiewicz | b14c721 | 2008-10-13 21:39:30 +0200 | [diff] [blame] | 224 | idefloppy_retry_pc, ide_io_buffers); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | } |
| 226 | |
| 227 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 228 | * What we have here is a classic case of a top half / bottom half interrupt |
| 229 | * service routine. In interrupt mode, the device sends an interrupt to signal |
| 230 | * that it is ready to receive a packet. However, we need to delay about 2-3 |
| 231 | * ticks before issuing the packet or we gets in trouble. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | */ |
Borislav Petkov | cbbc4e8 | 2008-07-15 21:22:03 +0200 | [diff] [blame] | 233 | static int idefloppy_transfer_pc(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | /* Send the actual packet */ |
Bartlomiej Zolnierkiewicz | 2b9efba | 2008-10-13 21:39:31 +0200 | [diff] [blame^] | 236 | drive->hwif->tp_ops->output_data(drive, NULL, drive->pc->c, 12); |
Bartlomiej Zolnierkiewicz | 9567b34 | 2008-04-28 23:44:36 +0200 | [diff] [blame] | 237 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | /* Timeout for the packet command */ |
Bartlomiej Zolnierkiewicz | d6e2955 | 2008-10-10 22:39:39 +0200 | [diff] [blame] | 239 | return WAIT_FLOPPY_CMD; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | } |
| 241 | |
Borislav Petkov | cbbc4e8 | 2008-07-15 21:22:03 +0200 | [diff] [blame] | 242 | /* |
| 243 | * Called as an interrupt (or directly). When the device says it's ready for a |
| 244 | * packet, we schedule the packet transfer to occur about 2-3 ticks later in |
| 245 | * transfer_pc. |
| 246 | */ |
| 247 | static ide_startstop_t idefloppy_start_pc_transfer(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | { |
| 249 | idefloppy_floppy_t *floppy = drive->driver_data; |
Bartlomiej Zolnierkiewicz | 0b2eea4 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 250 | ide_expiry_t *expiry; |
| 251 | unsigned int timeout; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 253 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | * The following delay solves a problem with ATAPI Zip 100 drives |
| 255 | * where the Busy flag was apparently being deasserted before the |
| 256 | * unit was ready to receive data. This was happening on a |
| 257 | * 1200 MHz Athlon system. 10/26/01 25msec is too short, |
| 258 | * 40 and 50msec work well. idefloppy_pc_intr will not be actually |
| 259 | * used until after the packet is moved in about 50 msec. |
| 260 | */ |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 261 | if (drive->atapi_flags & IDE_AFLAG_ZIP_DRIVE) { |
Bartlomiej Zolnierkiewicz | 0b2eea4 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 262 | timeout = floppy->ticks; |
Borislav Petkov | cbbc4e8 | 2008-07-15 21:22:03 +0200 | [diff] [blame] | 263 | expiry = &idefloppy_transfer_pc; |
Bartlomiej Zolnierkiewicz | 0b2eea4 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 264 | } else { |
Bartlomiej Zolnierkiewicz | d6e2955 | 2008-10-10 22:39:39 +0200 | [diff] [blame] | 265 | timeout = WAIT_FLOPPY_CMD; |
Bartlomiej Zolnierkiewicz | 0b2eea4 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 266 | expiry = NULL; |
| 267 | } |
Borislav Petkov | 0078df2 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 268 | |
Bartlomiej Zolnierkiewicz | 2b9efba | 2008-10-13 21:39:31 +0200 | [diff] [blame^] | 269 | return ide_transfer_pc(drive, idefloppy_pc_intr, timeout, expiry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | } |
| 271 | |
Borislav Petkov | d652c13 | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 272 | static void ide_floppy_report_error(idefloppy_floppy_t *floppy, |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 273 | struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | { |
Borislav Petkov | d652c13 | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 275 | /* supress error messages resulting from Medium not present */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | if (floppy->sense_key == 0x02 && |
| 277 | floppy->asc == 0x3a && |
| 278 | floppy->ascq == 0x00) |
Borislav Petkov | d652c13 | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 279 | return; |
| 280 | |
| 281 | printk(KERN_ERR "ide-floppy: %s: I/O error, pc = %2x, key = %2x, " |
| 282 | "asc = %2x, ascq = %2x\n", |
| 283 | floppy->drive->name, pc->c[0], floppy->sense_key, |
| 284 | floppy->asc, floppy->ascq); |
| 285 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | } |
| 287 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 288 | static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive, |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 289 | struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | { |
| 291 | idefloppy_floppy_t *floppy = drive->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | if (floppy->failed_pc == NULL && |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 294 | pc->c[0] != GPCMD_REQUEST_SENSE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | floppy->failed_pc = pc; |
Bartlomiej Zolnierkiewicz | 2b9efba | 2008-10-13 21:39:31 +0200 | [diff] [blame^] | 296 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | /* Set the current packet command */ |
Bartlomiej Zolnierkiewicz | 2b9efba | 2008-10-13 21:39:31 +0200 | [diff] [blame^] | 298 | drive->pc = pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | |
Borislav Petkov | 757ced8 | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 300 | if (pc->retries > IDEFLOPPY_MAX_PC_RETRIES) { |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 301 | if (!(pc->flags & PC_FLAG_SUPPRESS_ERROR)) |
Borislav Petkov | 757ced8 | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 302 | ide_floppy_report_error(floppy, pc); |
| 303 | /* Giving up */ |
| 304 | pc->error = IDEFLOPPY_ERROR_GENERAL; |
| 305 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | floppy->failed_pc = NULL; |
Bartlomiej Zolnierkiewicz | b14c721 | 2008-10-13 21:39:30 +0200 | [diff] [blame] | 307 | drive->pc_callback(drive, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | return ide_stopped; |
| 309 | } |
| 310 | |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 311 | debug_log("Retry number - %d\n", pc->retries); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | |
| 313 | pc->retries++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | |
Bartlomiej Zolnierkiewicz | 2b9efba | 2008-10-13 21:39:31 +0200 | [diff] [blame^] | 315 | return ide_issue_pc(drive, idefloppy_start_pc_transfer, |
Bartlomiej Zolnierkiewicz | d6e2955 | 2008-10-10 22:39:39 +0200 | [diff] [blame] | 316 | WAIT_FLOPPY_CMD, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | } |
| 318 | |
Bartlomiej Zolnierkiewicz | 0127854 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 319 | void ide_floppy_create_read_capacity_cmd(struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | { |
Bartlomiej Zolnierkiewicz | 7bf7420 | 2008-10-10 22:39:37 +0200 | [diff] [blame] | 321 | ide_init_pc(pc); |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 322 | pc->c[0] = GPCMD_READ_FORMAT_CAPACITIES; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | pc->c[7] = 255; |
| 324 | pc->c[8] = 255; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 325 | pc->req_xfer = 255; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | } |
| 327 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 328 | /* A mode sense command is used to "sense" floppy parameters. */ |
Bartlomiej Zolnierkiewicz | 0127854 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 329 | 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] | 330 | { |
Borislav Petkov | 24a5d70 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 331 | u16 length = 8; /* sizeof(Mode Parameter Header) = 8 Bytes */ |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 332 | |
Bartlomiej Zolnierkiewicz | 7bf7420 | 2008-10-10 22:39:37 +0200 | [diff] [blame] | 333 | ide_init_pc(pc); |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 334 | pc->c[0] = GPCMD_MODE_SENSE_10; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | pc->c[1] = 0; |
Bartlomiej Zolnierkiewicz | 4de4b9e | 2008-10-10 22:39:36 +0200 | [diff] [blame] | 336 | pc->c[2] = page_code; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | |
| 338 | switch (page_code) { |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 339 | case IDEFLOPPY_CAPABILITIES_PAGE: |
| 340 | length += 12; |
| 341 | break; |
| 342 | case IDEFLOPPY_FLEXIBLE_DISK_PAGE: |
| 343 | length += 32; |
| 344 | break; |
| 345 | default: |
| 346 | printk(KERN_ERR "ide-floppy: unsupported page code " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | "in create_mode_sense_cmd\n"); |
| 348 | } |
Borislav Petkov | 8f62243 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 349 | put_unaligned(cpu_to_be16(length), (u16 *) &pc->c[7]); |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 350 | pc->req_xfer = length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | } |
| 352 | |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 353 | static void idefloppy_create_rw_cmd(idefloppy_floppy_t *floppy, |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 354 | struct ide_atapi_pc *pc, struct request *rq, |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 355 | unsigned long sector) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | { |
| 357 | int block = sector / floppy->bs_factor; |
| 358 | int blocks = rq->nr_sectors / floppy->bs_factor; |
| 359 | int cmd = rq_data_dir(rq); |
| 360 | |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 361 | debug_log("create_rw10_cmd: block == %d, blocks == %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | block, blocks); |
| 363 | |
Bartlomiej Zolnierkiewicz | 7bf7420 | 2008-10-10 22:39:37 +0200 | [diff] [blame] | 364 | ide_init_pc(pc); |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 365 | pc->c[0] = cmd == READ ? GPCMD_READ_10 : GPCMD_WRITE_10; |
| 366 | put_unaligned(cpu_to_be16(blocks), (unsigned short *)&pc->c[7]); |
Borislav Petkov | 8f62243 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 367 | put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[2]); |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 368 | |
Borislav Petkov | 20cd93b | 2008-07-23 19:56:00 +0200 | [diff] [blame] | 369 | memcpy(rq->cmd, pc->c, 12); |
| 370 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | pc->rq = rq; |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 372 | pc->b_count = 0; |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 373 | if (rq->cmd_flags & REQ_RW) |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 374 | pc->flags |= PC_FLAG_WRITING; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 375 | pc->buf = NULL; |
| 376 | pc->req_xfer = pc->buf_size = blocks * floppy->block_size; |
Bartlomiej Zolnierkiewicz | 5e33109 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 377 | pc->flags |= PC_FLAG_DMA_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | } |
| 379 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 380 | static void idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy, |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 381 | struct ide_atapi_pc *pc, struct request *rq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | { |
Bartlomiej Zolnierkiewicz | 7bf7420 | 2008-10-10 22:39:37 +0200 | [diff] [blame] | 383 | ide_init_pc(pc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | memcpy(pc->c, rq->cmd, sizeof(pc->c)); |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 385 | pc->rq = rq; |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 386 | pc->b_count = 0; |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 387 | if (rq->data_len && rq_data_dir(rq) == WRITE) |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 388 | pc->flags |= PC_FLAG_WRITING; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 389 | pc->buf = rq->data; |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 390 | if (rq->bio) |
Bartlomiej Zolnierkiewicz | 5e33109 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 391 | pc->flags |= PC_FLAG_DMA_OK; |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 392 | /* |
| 393 | * possibly problematic, doesn't look like ide-floppy correctly |
| 394 | * handled scattered requests if dma fails... |
| 395 | */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 396 | pc->req_xfer = pc->buf_size = rq->data_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | } |
| 398 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 399 | static ide_startstop_t idefloppy_do_request(ide_drive_t *drive, |
| 400 | struct request *rq, sector_t block_s) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | { |
| 402 | idefloppy_floppy_t *floppy = drive->driver_data; |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 403 | ide_hwif_t *hwif = drive->hwif; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 404 | struct ide_atapi_pc *pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | unsigned long block = (unsigned long)block_s; |
| 406 | |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 407 | debug_log("%s: dev: %s, cmd: 0x%x, cmd_type: %x, errors: %d\n", |
| 408 | __func__, rq->rq_disk ? rq->rq_disk->disk_name : "?", |
| 409 | rq->cmd[0], rq->cmd_type, rq->errors); |
| 410 | |
| 411 | debug_log("%s: sector: %ld, nr_sectors: %ld, current_nr_sectors: %d\n", |
| 412 | __func__, (long)rq->sector, rq->nr_sectors, |
| 413 | rq->current_nr_sectors); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | |
| 415 | if (rq->errors >= ERROR_MAX) { |
Borislav Petkov | d652c13 | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 416 | if (floppy->failed_pc) |
| 417 | ide_floppy_report_error(floppy, floppy->failed_pc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | else |
| 419 | printk(KERN_ERR "ide-floppy: %s: I/O error\n", |
| 420 | drive->name); |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 421 | idefloppy_end_request(drive, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | return ide_stopped; |
| 423 | } |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 424 | if (blk_fs_request(rq)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | if (((long)rq->sector % floppy->bs_factor) || |
| 426 | (rq->nr_sectors % floppy->bs_factor)) { |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 427 | printk(KERN_ERR "%s: unsupported r/w request size\n", |
| 428 | drive->name); |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 429 | idefloppy_end_request(drive, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | return ide_stopped; |
| 431 | } |
Bartlomiej Zolnierkiewicz | 2e8a6f8 | 2008-10-10 22:39:36 +0200 | [diff] [blame] | 432 | pc = &floppy->queued_pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | idefloppy_create_rw_cmd(floppy, pc, rq, block); |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 434 | } else if (blk_special_request(rq)) { |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 435 | pc = (struct ide_atapi_pc *) rq->buffer; |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 436 | } else if (blk_pc_request(rq)) { |
Bartlomiej Zolnierkiewicz | 2e8a6f8 | 2008-10-10 22:39:36 +0200 | [diff] [blame] | 437 | pc = &floppy->queued_pc; |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 438 | idefloppy_blockpc_cmd(floppy, pc, rq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 439 | } else { |
| 440 | blk_dump_rq_flags(rq, |
| 441 | "ide-floppy: unsupported command in queue"); |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 442 | idefloppy_end_request(drive, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | return ide_stopped; |
| 444 | } |
| 445 | |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 446 | ide_init_sg_cmd(drive, rq); |
| 447 | ide_map_sg(drive, rq); |
| 448 | |
| 449 | pc->sg = hwif->sg_table; |
| 450 | pc->sg_cnt = hwif->sg_nents; |
| 451 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | pc->rq = rq; |
Bartlomiej Zolnierkiewicz | 5d41893 | 2008-07-15 21:21:57 +0200 | [diff] [blame] | 453 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | return idefloppy_issue_pc(drive, pc); |
| 455 | } |
| 456 | |
| 457 | /* |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 458 | * Look at the flexible disk page parameters. We ignore the CHS capacity |
| 459 | * parameters and use the LBA parameters instead. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | */ |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 461 | static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | { |
| 463 | idefloppy_floppy_t *floppy = drive->driver_data; |
Bartlomiej Zolnierkiewicz | 2ac07d9 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 464 | struct gendisk *disk = floppy->disk; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 465 | struct ide_atapi_pc pc; |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 466 | u8 *page; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | int capacity, lba_capacity; |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 468 | u16 transfer_rate, sector_size, cyls, rpm; |
| 469 | u8 heads, sectors; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | |
Bartlomiej Zolnierkiewicz | 0127854 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 471 | ide_floppy_create_mode_sense_cmd(&pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE); |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 472 | |
Bartlomiej Zolnierkiewicz | 2ac07d9 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 473 | if (ide_queue_pc_tail(drive, disk, &pc)) { |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 474 | printk(KERN_ERR "ide-floppy: Can't get flexible disk page" |
| 475 | " parameters\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | return 1; |
| 477 | } |
Bartlomiej Zolnierkiewicz | 49cac39 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 478 | |
| 479 | if (pc.buf[3] & 0x80) |
| 480 | drive->atapi_flags |= IDE_AFLAG_WP; |
| 481 | else |
| 482 | drive->atapi_flags &= ~IDE_AFLAG_WP; |
| 483 | |
| 484 | set_disk_ro(disk, !!(drive->atapi_flags & IDE_AFLAG_WP)); |
| 485 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 486 | page = &pc.buf[8]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | |
Harvey Harrison | 85ae98a | 2008-07-16 20:33:47 +0200 | [diff] [blame] | 488 | transfer_rate = be16_to_cpup((__be16 *)&pc.buf[8 + 2]); |
| 489 | sector_size = be16_to_cpup((__be16 *)&pc.buf[8 + 6]); |
| 490 | cyls = be16_to_cpup((__be16 *)&pc.buf[8 + 8]); |
| 491 | rpm = be16_to_cpup((__be16 *)&pc.buf[8 + 28]); |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 492 | heads = pc.buf[8 + 4]; |
| 493 | sectors = pc.buf[8 + 5]; |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 494 | |
| 495 | capacity = cyls * heads * sectors * sector_size; |
| 496 | |
| 497 | if (memcmp(page, &floppy->flexible_disk_page, 32)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | printk(KERN_INFO "%s: %dkB, %d/%d/%d CHS, %d kBps, " |
| 499 | "%d sector size, %d rpm\n", |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 500 | drive->name, capacity / 1024, cyls, heads, |
| 501 | sectors, transfer_rate / 8, sector_size, rpm); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 503 | memcpy(&floppy->flexible_disk_page, page, 32); |
| 504 | drive->bios_cyl = cyls; |
| 505 | drive->bios_head = heads; |
| 506 | drive->bios_sect = sectors; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | lba_capacity = floppy->blocks * floppy->block_size; |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 508 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | if (capacity < lba_capacity) { |
| 510 | printk(KERN_NOTICE "%s: The disk reports a capacity of %d " |
| 511 | "bytes, but the drive only handles %d\n", |
| 512 | drive->name, lba_capacity, capacity); |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 513 | floppy->blocks = floppy->block_size ? |
| 514 | capacity / floppy->block_size : 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | } |
| 516 | return 0; |
| 517 | } |
| 518 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | /* |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 520 | * Determine if a media is present in the floppy drive, and if so, its LBA |
| 521 | * capacity. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | */ |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 523 | static int ide_floppy_get_capacity(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | { |
| 525 | idefloppy_floppy_t *floppy = drive->driver_data; |
Bartlomiej Zolnierkiewicz | 2ac07d9 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 526 | struct gendisk *disk = floppy->disk; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 527 | struct ide_atapi_pc pc; |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 528 | u8 *cap_desc; |
| 529 | u8 header_len, desc_cnt; |
| 530 | int i, rc = 1, blocks, length; |
| 531 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 532 | drive->bios_cyl = 0; |
| 533 | drive->bios_head = drive->bios_sect = 0; |
Alan Cox | fdb77da | 2007-02-17 02:40:20 +0100 | [diff] [blame] | 534 | floppy->blocks = 0; |
| 535 | floppy->bs_factor = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 536 | set_capacity(floppy->disk, 0); |
| 537 | |
Bartlomiej Zolnierkiewicz | 0127854 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 538 | ide_floppy_create_read_capacity_cmd(&pc); |
Bartlomiej Zolnierkiewicz | 2ac07d9 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 539 | if (ide_queue_pc_tail(drive, disk, &pc)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 540 | printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n"); |
| 541 | return 1; |
| 542 | } |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 543 | header_len = pc.buf[3]; |
| 544 | cap_desc = &pc.buf[4]; |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 545 | desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 547 | for (i = 0; i < desc_cnt; i++) { |
| 548 | unsigned int desc_start = 4 + i*8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | |
Harvey Harrison | 85ae98a | 2008-07-16 20:33:47 +0200 | [diff] [blame] | 550 | blocks = be32_to_cpup((__be32 *)&pc.buf[desc_start]); |
| 551 | length = be16_to_cpup((__be16 *)&pc.buf[desc_start + 6]); |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 552 | |
| 553 | debug_log("Descriptor %d: %dkB, %d blocks, %d sector size\n", |
| 554 | i, blocks * length / 1024, blocks, length); |
| 555 | |
| 556 | if (i) |
| 557 | continue; |
| 558 | /* |
| 559 | * the code below is valid only for the 1st descriptor, ie i=0 |
| 560 | */ |
| 561 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 562 | switch (pc.buf[desc_start + 4] & 0x03) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | /* Clik! drive returns this instead of CAPACITY_CURRENT */ |
| 564 | case CAPACITY_UNFORMATTED: |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 565 | if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 566 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | * If it is not a clik drive, break out |
| 568 | * (maintains previous driver behaviour) |
| 569 | */ |
| 570 | break; |
| 571 | case CAPACITY_CURRENT: |
| 572 | /* Normal Zip/LS-120 disks */ |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 573 | if (memcmp(cap_desc, &floppy->cap_desc, 8)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | printk(KERN_INFO "%s: %dkB, %d blocks, %d " |
| 575 | "sector size\n", drive->name, |
| 576 | blocks * length / 1024, blocks, length); |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 577 | memcpy(&floppy->cap_desc, cap_desc, 8); |
| 578 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 579 | if (!length || length % 512) { |
| 580 | printk(KERN_NOTICE "%s: %d bytes block size " |
| 581 | "not supported\n", drive->name, length); |
| 582 | } else { |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 583 | floppy->blocks = blocks; |
| 584 | floppy->block_size = length; |
| 585 | floppy->bs_factor = length / 512; |
| 586 | if (floppy->bs_factor != 1) |
| 587 | printk(KERN_NOTICE "%s: warning: non " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | "512 bytes block size not " |
| 589 | "fully supported\n", |
| 590 | drive->name); |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 591 | rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | } |
| 593 | break; |
| 594 | case CAPACITY_NO_CARTRIDGE: |
| 595 | /* |
| 596 | * This is a KERN_ERR so it appears on screen |
| 597 | * for the user to see |
| 598 | */ |
| 599 | printk(KERN_ERR "%s: No disk in drive\n", drive->name); |
| 600 | break; |
| 601 | case CAPACITY_INVALID: |
| 602 | printk(KERN_ERR "%s: Invalid capacity for disk " |
| 603 | "in drive\n", drive->name); |
| 604 | break; |
| 605 | } |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 606 | debug_log("Descriptor 0 Code: %d\n", |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 607 | pc.buf[desc_start + 4] & 0x03); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | } |
| 609 | |
| 610 | /* Clik! disk does not support get_flexible_disk_page */ |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 611 | if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 612 | (void) ide_floppy_get_flexible_disk_page(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | |
Bartlomiej Zolnierkiewicz | 2ac07d9 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 614 | set_capacity(disk, floppy->blocks * floppy->bs_factor); |
| 615 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | return rc; |
| 617 | } |
| 618 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 619 | static sector_t idefloppy_capacity(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | { |
| 621 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 622 | unsigned long capacity = floppy->blocks * floppy->bs_factor; |
| 623 | |
| 624 | return capacity; |
| 625 | } |
| 626 | |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 627 | #ifdef CONFIG_IDE_PROC_FS |
Elias Oltmanns | 92f1f8f | 2008-10-10 22:39:40 +0200 | [diff] [blame] | 628 | ide_devset_rw_field(bios_cyl, bios_cyl); |
| 629 | ide_devset_rw_field(bios_head, bios_head); |
| 630 | ide_devset_rw_field(bios_sect, bios_sect); |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 631 | |
| 632 | static int get_ticks(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | { |
| 634 | idefloppy_floppy_t *floppy = drive->driver_data; |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 635 | return floppy->ticks; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 636 | } |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 637 | |
| 638 | static int set_ticks(ide_drive_t *drive, int arg) |
| 639 | { |
| 640 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 641 | floppy->ticks = arg; |
| 642 | return 0; |
| 643 | } |
| 644 | |
Elias Oltmanns | 92f1f8f | 2008-10-10 22:39:40 +0200 | [diff] [blame] | 645 | IDE_DEVSET(ticks, DS_SYNC, get_ticks, set_ticks); |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 646 | |
Elias Oltmanns | 92f1f8f | 2008-10-10 22:39:40 +0200 | [diff] [blame] | 647 | static const struct ide_proc_devset idefloppy_settings[] = { |
| 648 | IDE_PROC_DEVSET(bios_cyl, 0, 1023), |
| 649 | IDE_PROC_DEVSET(bios_head, 0, 255), |
| 650 | IDE_PROC_DEVSET(bios_sect, 0, 63), |
| 651 | IDE_PROC_DEVSET(ticks, 0, 255), |
| 652 | { 0 }, |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 653 | }; |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 654 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 656 | static void idefloppy_setup(ide_drive_t *drive, idefloppy_floppy_t *floppy) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | { |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 658 | u16 *id = drive->id; |
Borislav Petkov | 3ad6776 | 2008-04-18 00:46:25 +0200 | [diff] [blame] | 659 | u8 gcw[2]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 660 | |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 661 | *((u16 *)&gcw) = id[ATA_ID_CONFIG]; |
Bartlomiej Zolnierkiewicz | 2e8a6f8 | 2008-10-10 22:39:36 +0200 | [diff] [blame] | 662 | |
Borislav Petkov | 2207fa5 | 2008-07-23 19:55:59 +0200 | [diff] [blame] | 663 | drive->pc_callback = ide_floppy_callback; |
Borislav Petkov | 3ad6776 | 2008-04-18 00:46:25 +0200 | [diff] [blame] | 664 | |
| 665 | if (((gcw[0] & 0x60) >> 5) == 1) |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 666 | drive->atapi_flags |= IDE_AFLAG_DRQ_INTERRUPT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 668 | * We used to check revisions here. At this point however I'm giving up. |
| 669 | * Just assume they are all broken, its easier. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | * |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 671 | * The actual reason for the workarounds was likely a driver bug after |
| 672 | * all rather than a firmware bug, and the workaround below used to hide |
| 673 | * it. It should be fixed as of version 1.9, but to be on the safe side |
| 674 | * we'll leave the limitation below for the 2.2.x tree. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | */ |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 676 | if (!strncmp((char *)&id[ATA_ID_PROD], "IOMEGA ZIP 100 ATAPI", 20)) { |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 677 | drive->atapi_flags |= IDE_AFLAG_ZIP_DRIVE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | /* This value will be visible in the /proc/ide/hdx/settings */ |
| 679 | floppy->ticks = IDEFLOPPY_TICKS_DELAY; |
| 680 | blk_queue_max_sectors(drive->queue, 64); |
| 681 | } |
| 682 | |
| 683 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 684 | * Guess what? The IOMEGA Clik! drive also needs the above fix. It makes |
| 685 | * nasty clicking noises without it, so please don't remove this. |
| 686 | */ |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 687 | if (strncmp((char *)&id[ATA_ID_PROD], "IOMEGA Clik!", 11) == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 688 | blk_queue_max_sectors(drive->queue, 64); |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 689 | drive->atapi_flags |= IDE_AFLAG_CLIK_DRIVE; |
Bartlomiej Zolnierkiewicz | 0578042 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 690 | /* IOMEGA Clik! drives do not support lock/unlock commands */ |
| 691 | drive->atapi_flags |= IDE_AFLAG_NO_DOORLOCK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | } |
| 693 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 694 | (void) ide_floppy_get_capacity(drive); |
Bartlomiej Zolnierkiewicz | 1e874f4 | 2008-10-10 22:39:27 +0200 | [diff] [blame] | 695 | |
| 696 | ide_proc_register_driver(drive, floppy->driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 697 | } |
| 698 | |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 699 | static void ide_floppy_remove(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 700 | { |
| 701 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 702 | struct gendisk *g = floppy->disk; |
| 703 | |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 704 | ide_proc_unregister_driver(drive, floppy->driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | |
| 706 | del_gendisk(g); |
| 707 | |
| 708 | ide_floppy_put(floppy); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | } |
| 710 | |
Borislav Petkov | 9a24b63 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 711 | static void idefloppy_cleanup_obj(struct kref *kref) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | { |
| 713 | struct ide_floppy_obj *floppy = to_ide_floppy(kref); |
| 714 | ide_drive_t *drive = floppy->drive; |
| 715 | struct gendisk *g = floppy->disk; |
| 716 | |
| 717 | drive->driver_data = NULL; |
| 718 | g->private_data = NULL; |
| 719 | put_disk(g); |
| 720 | kfree(floppy); |
| 721 | } |
| 722 | |
Bartlomiej Zolnierkiewicz | ecfd80e | 2007-05-10 00:01:09 +0200 | [diff] [blame] | 723 | #ifdef CONFIG_IDE_PROC_FS |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 724 | static int proc_idefloppy_read_capacity(char *page, char **start, off_t off, |
| 725 | int count, int *eof, void *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 726 | { |
| 727 | ide_drive_t*drive = (ide_drive_t *)data; |
| 728 | int len; |
| 729 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 730 | len = sprintf(page, "%llu\n", (long long)idefloppy_capacity(drive)); |
| 731 | PROC_IDE_READ_RETURN(page, start, off, count, eof, len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | } |
| 733 | |
| 734 | static ide_proc_entry_t idefloppy_proc[] = { |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 735 | { "capacity", S_IFREG|S_IRUGO, proc_idefloppy_read_capacity, NULL }, |
| 736 | { "geometry", S_IFREG|S_IRUGO, proc_ide_read_geometry, NULL }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | { NULL, 0, NULL, NULL } |
| 738 | }; |
Bartlomiej Zolnierkiewicz | ecfd80e | 2007-05-10 00:01:09 +0200 | [diff] [blame] | 739 | #endif /* CONFIG_IDE_PROC_FS */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 741 | static int ide_floppy_probe(ide_drive_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 743 | static ide_driver_t idefloppy_driver = { |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 744 | .gen_driver = { |
Laurent Riffard | 4ef3b8f | 2005-11-18 22:15:40 +0100 | [diff] [blame] | 745 | .owner = THIS_MODULE, |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 746 | .name = "ide-floppy", |
| 747 | .bus = &ide_bus_type, |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 748 | }, |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 749 | .probe = ide_floppy_probe, |
| 750 | .remove = ide_floppy_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 751 | .version = IDEFLOPPY_VERSION, |
| 752 | .media = ide_floppy, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | .do_request = idefloppy_do_request, |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 754 | .end_request = idefloppy_end_request, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 755 | .error = __ide_error, |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 756 | #ifdef CONFIG_IDE_PROC_FS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 757 | .proc = idefloppy_proc, |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 758 | .settings = idefloppy_settings, |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 759 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | }; |
| 761 | |
| 762 | static int idefloppy_open(struct inode *inode, struct file *filp) |
| 763 | { |
| 764 | struct gendisk *disk = inode->i_bdev->bd_disk; |
| 765 | struct ide_floppy_obj *floppy; |
| 766 | ide_drive_t *drive; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 767 | int ret = 0; |
| 768 | |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 769 | debug_log("Reached %s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 770 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 771 | floppy = ide_floppy_get(disk); |
| 772 | if (!floppy) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 773 | return -ENXIO; |
| 774 | |
| 775 | drive = floppy->drive; |
| 776 | |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 777 | floppy->openers++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 778 | |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 779 | if (floppy->openers == 1) { |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 780 | drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 781 | /* Just in case */ |
| 782 | |
Bartlomiej Zolnierkiewicz | de699ad | 2008-10-10 22:39:39 +0200 | [diff] [blame] | 783 | if (ide_do_test_unit_ready(drive, disk)) |
Bartlomiej Zolnierkiewicz | 0c8a6c7 | 2008-10-10 22:39:39 +0200 | [diff] [blame] | 784 | ide_do_start_stop(drive, disk, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 786 | if (ide_floppy_get_capacity(drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 787 | && (filp->f_flags & O_NDELAY) == 0 |
| 788 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 789 | * Allow O_NDELAY to open a drive without a disk, or with an |
| 790 | * unreadable disk, so that we can get the format capacity |
| 791 | * of the drive or begin the format - Sam |
| 792 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | ) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 794 | ret = -EIO; |
| 795 | goto out_put_floppy; |
| 796 | } |
| 797 | |
Bartlomiej Zolnierkiewicz | 49cac39 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 798 | if ((drive->atapi_flags & IDE_AFLAG_WP) && (filp->f_mode & 2)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | ret = -EROFS; |
| 800 | goto out_put_floppy; |
| 801 | } |
Bartlomiej Zolnierkiewicz | e996fc8 | 2008-10-10 22:39:37 +0200 | [diff] [blame] | 802 | |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 803 | drive->atapi_flags |= IDE_AFLAG_MEDIA_CHANGED; |
Bartlomiej Zolnierkiewicz | 0578042 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 804 | ide_set_media_lock(drive, disk, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | check_disk_change(inode->i_bdev); |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 806 | } else if (drive->atapi_flags & IDE_AFLAG_FORMAT_IN_PROGRESS) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 807 | ret = -EBUSY; |
| 808 | goto out_put_floppy; |
| 809 | } |
| 810 | return 0; |
| 811 | |
| 812 | out_put_floppy: |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 813 | floppy->openers--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 814 | ide_floppy_put(floppy); |
| 815 | return ret; |
| 816 | } |
| 817 | |
| 818 | static int idefloppy_release(struct inode *inode, struct file *filp) |
| 819 | { |
| 820 | struct gendisk *disk = inode->i_bdev->bd_disk; |
| 821 | struct ide_floppy_obj *floppy = ide_floppy_g(disk); |
| 822 | ide_drive_t *drive = floppy->drive; |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 823 | |
| 824 | debug_log("Reached %s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 825 | |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 826 | if (floppy->openers == 1) { |
Bartlomiej Zolnierkiewicz | 0578042 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 827 | ide_set_media_lock(drive, disk, 0); |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 828 | drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 829 | } |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 830 | |
| 831 | floppy->openers--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 832 | |
| 833 | ide_floppy_put(floppy); |
| 834 | |
| 835 | return 0; |
| 836 | } |
| 837 | |
Christoph Hellwig | a885c8c | 2006-01-08 01:02:50 -0800 | [diff] [blame] | 838 | static int idefloppy_getgeo(struct block_device *bdev, struct hd_geometry *geo) |
| 839 | { |
| 840 | struct ide_floppy_obj *floppy = ide_floppy_g(bdev->bd_disk); |
| 841 | ide_drive_t *drive = floppy->drive; |
| 842 | |
| 843 | geo->heads = drive->bios_head; |
| 844 | geo->sectors = drive->bios_sect; |
| 845 | geo->cylinders = (u16)drive->bios_cyl; /* truncate */ |
| 846 | return 0; |
| 847 | } |
| 848 | |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 849 | static int ide_floppy_lockdoor(ide_drive_t *drive, struct ide_atapi_pc *pc, |
| 850 | unsigned long arg, unsigned int cmd) |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 851 | { |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 852 | idefloppy_floppy_t *floppy = drive->driver_data; |
Bartlomiej Zolnierkiewicz | 0578042 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 853 | struct gendisk *disk = floppy->disk; |
Bartlomiej Zolnierkiewicz | e996fc8 | 2008-10-10 22:39:37 +0200 | [diff] [blame] | 854 | int prevent = (arg && cmd != CDROMEJECT) ? 1 : 0; |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 855 | |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 856 | if (floppy->openers > 1) |
| 857 | return -EBUSY; |
| 858 | |
Bartlomiej Zolnierkiewicz | 0578042 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 859 | ide_set_media_lock(drive, disk, prevent); |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 860 | |
Bartlomiej Zolnierkiewicz | 0c8a6c7 | 2008-10-10 22:39:39 +0200 | [diff] [blame] | 861 | if (cmd == CDROMEJECT) |
| 862 | ide_do_start_stop(drive, disk, 2); |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 863 | |
| 864 | return 0; |
| 865 | } |
| 866 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | static int idefloppy_ioctl(struct inode *inode, struct file *file, |
| 868 | unsigned int cmd, unsigned long arg) |
| 869 | { |
| 870 | struct block_device *bdev = inode->i_bdev; |
| 871 | struct ide_floppy_obj *floppy = ide_floppy_g(bdev->bd_disk); |
| 872 | ide_drive_t *drive = floppy->drive; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 873 | struct ide_atapi_pc pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 874 | void __user *argp = (void __user *)arg; |
Ondrej Zary | 07203f6 | 2005-11-10 00:25:15 +0100 | [diff] [blame] | 875 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | |
Bartlomiej Zolnierkiewicz | d56c99e | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 877 | if (cmd == CDROMEJECT || cmd == CDROM_LOCKDOOR) |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 878 | return ide_floppy_lockdoor(drive, &pc, arg, cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | |
Bartlomiej Zolnierkiewicz | d56c99e | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 880 | err = ide_floppy_format_ioctl(drive, file, cmd, argp); |
| 881 | if (err != -ENOTTY) |
| 882 | return err; |
Bartlomiej Zolnierkiewicz | 89636af | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 883 | |
| 884 | /* |
| 885 | * skip SCSI_IOCTL_SEND_COMMAND (deprecated) |
| 886 | * and CDROM_SEND_PACKET (legacy) ioctls |
| 887 | */ |
| 888 | if (cmd != CDROM_SEND_PACKET && cmd != SCSI_IOCTL_SEND_COMMAND) |
| 889 | err = scsi_cmd_ioctl(file, bdev->bd_disk->queue, |
| 890 | bdev->bd_disk, cmd, argp); |
Bartlomiej Zolnierkiewicz | 89636af | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 891 | |
| 892 | if (err == -ENOTTY) |
| 893 | err = generic_ide_ioctl(drive, file, bdev, cmd, arg); |
| 894 | |
| 895 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | } |
| 897 | |
| 898 | static int idefloppy_media_changed(struct gendisk *disk) |
| 899 | { |
| 900 | struct ide_floppy_obj *floppy = ide_floppy_g(disk); |
| 901 | ide_drive_t *drive = floppy->drive; |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 902 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 903 | |
| 904 | /* do not scan partitions twice if this is a removable device */ |
| 905 | if (drive->attach) { |
| 906 | drive->attach = 0; |
| 907 | return 0; |
| 908 | } |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 909 | ret = !!(drive->atapi_flags & IDE_AFLAG_MEDIA_CHANGED); |
| 910 | drive->atapi_flags &= ~IDE_AFLAG_MEDIA_CHANGED; |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 911 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | } |
| 913 | |
| 914 | static int idefloppy_revalidate_disk(struct gendisk *disk) |
| 915 | { |
| 916 | struct ide_floppy_obj *floppy = ide_floppy_g(disk); |
| 917 | set_capacity(disk, idefloppy_capacity(floppy->drive)); |
| 918 | return 0; |
| 919 | } |
| 920 | |
| 921 | static struct block_device_operations idefloppy_ops = { |
Paolo Ciarrocchi | 52d3ccf | 2008-04-26 17:36:41 +0200 | [diff] [blame] | 922 | .owner = THIS_MODULE, |
| 923 | .open = idefloppy_open, |
| 924 | .release = idefloppy_release, |
| 925 | .ioctl = idefloppy_ioctl, |
| 926 | .getgeo = idefloppy_getgeo, |
| 927 | .media_changed = idefloppy_media_changed, |
| 928 | .revalidate_disk = idefloppy_revalidate_disk |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 929 | }; |
| 930 | |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 931 | static int ide_floppy_probe(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 932 | { |
| 933 | idefloppy_floppy_t *floppy; |
| 934 | struct gendisk *g; |
| 935 | |
| 936 | if (!strstr("ide-floppy", drive->driver_req)) |
| 937 | goto failed; |
Bartlomiej Zolnierkiewicz | 2a92466 | 2008-10-10 22:39:24 +0200 | [diff] [blame] | 938 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 939 | if (drive->media != ide_floppy) |
| 940 | goto failed; |
Bartlomiej Zolnierkiewicz | 2a92466 | 2008-10-10 22:39:24 +0200 | [diff] [blame] | 941 | |
Bartlomiej Zolnierkiewicz | 51509ee | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 942 | if (!ide_check_atapi_device(drive, DRV_NAME)) { |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 943 | printk(KERN_ERR "ide-floppy: %s: not supported by this version" |
| 944 | " of ide-floppy\n", drive->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | goto failed; |
| 946 | } |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 947 | floppy = kzalloc(sizeof(idefloppy_floppy_t), GFP_KERNEL); |
| 948 | if (!floppy) { |
| 949 | printk(KERN_ERR "ide-floppy: %s: Can't allocate a floppy" |
| 950 | " structure\n", drive->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 951 | goto failed; |
| 952 | } |
| 953 | |
| 954 | g = alloc_disk(1 << PARTN_BITS); |
| 955 | if (!g) |
| 956 | goto out_free_floppy; |
| 957 | |
| 958 | ide_init_disk(g, drive); |
| 959 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 960 | kref_init(&floppy->kref); |
| 961 | |
| 962 | floppy->drive = drive; |
| 963 | floppy->driver = &idefloppy_driver; |
| 964 | floppy->disk = g; |
| 965 | |
| 966 | g->private_data = &floppy->driver; |
| 967 | |
| 968 | drive->driver_data = floppy; |
| 969 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 970 | idefloppy_setup(drive, floppy); |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 971 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 972 | g->minors = 1 << PARTN_BITS; |
| 973 | g->driverfs_dev = &drive->gendev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 974 | g->flags = drive->removable ? GENHD_FL_REMOVABLE : 0; |
| 975 | g->fops = &idefloppy_ops; |
| 976 | drive->attach = 1; |
| 977 | add_disk(g); |
| 978 | return 0; |
| 979 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 980 | out_free_floppy: |
| 981 | kfree(floppy); |
| 982 | failed: |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 983 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 984 | } |
| 985 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 986 | static void __exit idefloppy_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 987 | { |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 988 | driver_unregister(&idefloppy_driver.gen_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 989 | } |
| 990 | |
Bartlomiej Zolnierkiewicz | 17514e8 | 2005-11-19 22:24:35 +0100 | [diff] [blame] | 991 | static int __init idefloppy_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 992 | { |
| 993 | printk("ide-floppy driver " IDEFLOPPY_VERSION "\n"); |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 994 | return driver_register(&idefloppy_driver.gen_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 995 | } |
| 996 | |
Kay Sievers | 263756e | 2005-12-12 18:03:44 +0100 | [diff] [blame] | 997 | MODULE_ALIAS("ide:*m-floppy*"); |
Bartlomiej Zolnierkiewicz | 0127854 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 998 | MODULE_ALIAS("ide-floppy"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | module_init(idefloppy_init); |
| 1000 | module_exit(idefloppy_exit); |
| 1001 | MODULE_LICENSE("GPL"); |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1002 | MODULE_DESCRIPTION("ATAPI FLOPPY Driver"); |
| 1003 | |