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 | |
Borislav Petkov | f373bd8 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 49 | /* define to see debug info */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | #define IDEFLOPPY_DEBUG_LOG 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | |
| 52 | /* #define IDEFLOPPY_DEBUG(fmt, args...) printk(KERN_INFO fmt, ## args) */ |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 53 | #define IDEFLOPPY_DEBUG(fmt, args...) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | |
| 55 | #if IDEFLOPPY_DEBUG_LOG |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 56 | #define debug_log(fmt, args...) \ |
| 57 | printk(KERN_INFO "ide-floppy: " fmt, ## args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | #else |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 59 | #define debug_log(fmt, args...) do {} while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | #endif |
| 61 | |
| 62 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 63 | /* Some drives require a longer irq timeout. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | #define IDEFLOPPY_WAIT_CMD (5 * WAIT_CMD) |
| 65 | |
| 66 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 67 | * After each failed packet command we issue a request sense command and retry |
| 68 | * the packet command IDEFLOPPY_MAX_PC_RETRIES times. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | */ |
| 70 | #define IDEFLOPPY_MAX_PC_RETRIES 3 |
| 71 | |
| 72 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 73 | * With each packet command, we allocate a buffer of IDEFLOPPY_PC_BUFFER_SIZE |
| 74 | * bytes. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | */ |
| 76 | #define IDEFLOPPY_PC_BUFFER_SIZE 256 |
| 77 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 78 | /* format capacities descriptor codes */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | #define CAPACITY_INVALID 0x00 |
| 80 | #define CAPACITY_UNFORMATTED 0x01 |
| 81 | #define CAPACITY_CURRENT 0x02 |
| 82 | #define CAPACITY_NO_CARTRIDGE 0x03 |
| 83 | |
| 84 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 85 | * Most of our global data which we need to save even as we leave the driver |
| 86 | * due to an interrupt or a timer event is stored in a variable of type |
| 87 | * idefloppy_floppy_t, defined below. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | */ |
| 89 | typedef struct ide_floppy_obj { |
| 90 | ide_drive_t *drive; |
| 91 | ide_driver_t *driver; |
| 92 | struct gendisk *disk; |
| 93 | struct kref kref; |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 94 | unsigned int openers; /* protected by BKL for now */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | |
| 96 | /* Current packet command */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 97 | struct ide_atapi_pc *pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | /* Last failed packet command */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 99 | struct ide_atapi_pc *failed_pc; |
Bartlomiej Zolnierkiewicz | 2e8a6f8 | 2008-10-10 22:39:36 +0200 | [diff] [blame^] | 100 | /* used for blk_{fs,pc}_request() requests */ |
| 101 | struct ide_atapi_pc queued_pc; |
Bartlomiej Zolnierkiewicz | 394a4c2 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 102 | |
Bartlomiej Zolnierkiewicz | 2e8a6f8 | 2008-10-10 22:39:36 +0200 | [diff] [blame^] | 103 | struct ide_atapi_pc request_sense_pc; |
Bartlomiej Zolnierkiewicz | 394a4c2 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 104 | struct request request_sense_rq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 106 | /* Last error information */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | u8 sense_key, asc, ascq; |
| 108 | /* delay this long before sending packet command */ |
| 109 | u8 ticks; |
| 110 | int progress_indication; |
| 111 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 112 | /* Device information */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | /* Current format */ |
| 114 | int blocks, block_size, bs_factor; |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 115 | /* Last format capacity descriptor */ |
| 116 | u8 cap_desc[8]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | /* Copy of the flexible disk page */ |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 118 | u8 flexible_disk_page[32]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | /* Write protect */ |
| 120 | int wp; |
| 121 | /* Supports format progress report */ |
| 122 | int srfp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | } idefloppy_floppy_t; |
| 124 | |
Bartlomiej Zolnierkiewicz | c40d3d3 | 2005-08-18 22:09:21 +0200 | [diff] [blame] | 125 | #define IDEFLOPPY_TICKS_DELAY HZ/20 /* default delay for ZIP 100 (50ms) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 127 | /* Defines for the MODE SENSE command */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | #define MODE_SENSE_CURRENT 0x00 |
| 129 | #define MODE_SENSE_CHANGEABLE 0x01 |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 130 | #define MODE_SENSE_DEFAULT 0x02 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | #define MODE_SENSE_SAVED 0x03 |
| 132 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 133 | /* IOCTLs used in low-level formatting. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | #define IDEFLOPPY_IOCTL_FORMAT_SUPPORTED 0x4600 |
| 135 | #define IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY 0x4601 |
| 136 | #define IDEFLOPPY_IOCTL_FORMAT_START 0x4602 |
| 137 | #define IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS 0x4603 |
| 138 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 139 | /* 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] | 140 | #define IDEFLOPPY_ERROR_GENERAL 101 |
| 141 | |
| 142 | /* |
Borislav Petkov | 948391d | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 143 | * Pages of the SELECT SENSE / MODE SENSE packet commands. |
| 144 | * See SFF-8070i spec. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | */ |
| 146 | #define IDEFLOPPY_CAPABILITIES_PAGE 0x1b |
| 147 | #define IDEFLOPPY_FLEXIBLE_DISK_PAGE 0x05 |
| 148 | |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 149 | static DEFINE_MUTEX(idefloppy_ref_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | |
| 151 | #define to_ide_floppy(obj) container_of(obj, struct ide_floppy_obj, kref) |
| 152 | |
| 153 | #define ide_floppy_g(disk) \ |
| 154 | container_of((disk)->private_data, struct ide_floppy_obj, driver) |
| 155 | |
Bartlomiej Zolnierkiewicz | 08da591 | 2008-07-24 22:53:15 +0200 | [diff] [blame] | 156 | static void idefloppy_cleanup_obj(struct kref *); |
| 157 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | static struct ide_floppy_obj *ide_floppy_get(struct gendisk *disk) |
| 159 | { |
| 160 | struct ide_floppy_obj *floppy = NULL; |
| 161 | |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 162 | mutex_lock(&idefloppy_ref_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | floppy = ide_floppy_g(disk); |
Bartlomiej Zolnierkiewicz | 08da591 | 2008-07-24 22:53:15 +0200 | [diff] [blame] | 164 | if (floppy) { |
Bartlomiej Zolnierkiewicz | d3e33ff | 2008-08-05 18:16:59 +0200 | [diff] [blame] | 165 | if (ide_device_get(floppy->drive)) |
Bartlomiej Zolnierkiewicz | 08da591 | 2008-07-24 22:53:15 +0200 | [diff] [blame] | 166 | floppy = NULL; |
Bartlomiej Zolnierkiewicz | d3e33ff | 2008-08-05 18:16:59 +0200 | [diff] [blame] | 167 | else |
| 168 | kref_get(&floppy->kref); |
Bartlomiej Zolnierkiewicz | 08da591 | 2008-07-24 22:53:15 +0200 | [diff] [blame] | 169 | } |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 170 | mutex_unlock(&idefloppy_ref_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | return floppy; |
| 172 | } |
| 173 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | static void ide_floppy_put(struct ide_floppy_obj *floppy) |
| 175 | { |
Bartlomiej Zolnierkiewicz | d3e33ff | 2008-08-05 18:16:59 +0200 | [diff] [blame] | 176 | ide_drive_t *drive = floppy->drive; |
| 177 | |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 178 | mutex_lock(&idefloppy_ref_mutex); |
Borislav Petkov | 9a24b63 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 179 | kref_put(&floppy->kref, idefloppy_cleanup_obj); |
Bartlomiej Zolnierkiewicz | d3e33ff | 2008-08-05 18:16:59 +0200 | [diff] [blame] | 180 | ide_device_put(drive); |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 181 | mutex_unlock(&idefloppy_ref_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | } |
| 183 | |
| 184 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 185 | * Used to finish servicing a request. For read/write requests, we will call |
| 186 | * ide_end_request to pass to the next buffer. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | */ |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 188 | 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] | 189 | { |
| 190 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 191 | struct request *rq = HWGROUP(drive)->rq; |
| 192 | int error; |
| 193 | |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 194 | debug_log("Reached %s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | |
| 196 | switch (uptodate) { |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 197 | case 0: error = IDEFLOPPY_ERROR_GENERAL; break; |
| 198 | case 1: error = 0; break; |
| 199 | default: error = uptodate; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | } |
| 201 | if (error) |
| 202 | floppy->failed_pc = NULL; |
| 203 | /* Why does this happen? */ |
| 204 | if (!rq) |
| 205 | return 0; |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 206 | if (!blk_special_request(rq)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | /* our real local end request function */ |
| 208 | ide_end_request(drive, uptodate, nsecs); |
| 209 | return 0; |
| 210 | } |
| 211 | rq->errors = error; |
| 212 | /* fixme: need to move this local also */ |
| 213 | ide_end_drive_cmd(drive, 0, 0); |
| 214 | return 0; |
| 215 | } |
| 216 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 217 | static void ide_floppy_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, |
Borislav Petkov | 32925e1 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 218 | unsigned int bcount, int direction) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | { |
Bartlomiej Zolnierkiewicz | 9567b34 | 2008-04-28 23:44:36 +0200 | [diff] [blame] | 220 | ide_hwif_t *hwif = drive->hwif; |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 221 | const struct ide_tp_ops *tp_ops = hwif->tp_ops; |
| 222 | xfer_func_t *xf = direction ? tp_ops->output_data : tp_ops->input_data; |
| 223 | struct scatterlist *sg = pc->sg; |
| 224 | char *buf; |
NeilBrown | 5705f70 | 2007-09-25 12:35:59 +0200 | [diff] [blame] | 225 | int count, done = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 227 | while (bcount) { |
| 228 | count = min(sg->length - pc->b_count, bcount); |
| 229 | if (PageHighMem(sg_page(sg))) { |
| 230 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 232 | local_irq_save(flags); |
| 233 | buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset; |
| 234 | xf(drive, NULL, buf + pc->b_count, count); |
| 235 | kunmap_atomic(buf - sg->offset, KM_IRQ0); |
| 236 | local_irq_restore(flags); |
| 237 | } else { |
| 238 | buf = sg_virt(sg); |
| 239 | xf(drive, NULL, buf + pc->b_count, count); |
| 240 | } |
Jens Axboe | 6c92e69 | 2007-08-16 13:43:12 +0200 | [diff] [blame] | 241 | bcount -= count; |
| 242 | pc->b_count += count; |
| 243 | done += count; |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 244 | |
| 245 | if (pc->b_count == sg->length) { |
| 246 | if (!--pc->sg_cnt) |
| 247 | break; |
| 248 | pc->sg = sg = sg_next(sg); |
| 249 | pc->b_count = 0; |
| 250 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | } |
| 252 | |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 253 | idefloppy_end_request(drive, 1, done >> 9); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | |
| 255 | if (bcount) { |
Borislav Petkov | 32925e1 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 256 | printk(KERN_ERR "%s: leftover data in %s, bcount == %d\n", |
| 257 | drive->name, __func__, bcount); |
Bartlomiej Zolnierkiewicz | 9f87abe | 2008-04-28 23:44:41 +0200 | [diff] [blame] | 258 | ide_pad_transfer(drive, direction, bcount); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | } |
| 260 | } |
| 261 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 262 | static void idefloppy_update_buffers(ide_drive_t *drive, |
| 263 | struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | { |
| 265 | struct request *rq = pc->rq; |
| 266 | struct bio *bio = rq->bio; |
| 267 | |
| 268 | while ((bio = rq->bio) != NULL) |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 269 | idefloppy_end_request(drive, 1, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | } |
| 271 | |
| 272 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 273 | * Generate a new packet command request in front of the request queue, before |
| 274 | * the current request so that it will be processed immediately, on the next |
| 275 | * pass through the driver. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 277 | static void idefloppy_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc, |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 278 | struct request *rq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | { |
| 280 | struct ide_floppy_obj *floppy = drive->driver_data; |
| 281 | |
FUJITA Tomonori | 124cafc | 2008-07-15 21:21:44 +0200 | [diff] [blame] | 282 | blk_rq_init(NULL, rq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | rq->buffer = (char *) pc; |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 284 | rq->cmd_type = REQ_TYPE_SPECIAL; |
Bartlomiej Zolnierkiewicz | e8a96aa | 2008-07-15 21:21:41 +0200 | [diff] [blame] | 285 | rq->cmd_flags |= REQ_PREEMPT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | rq->rq_disk = floppy->disk; |
Borislav Petkov | 20cd93be | 2008-07-23 19:56:00 +0200 | [diff] [blame] | 287 | memcpy(rq->cmd, pc->c, 12); |
FUJITA Tomonori | 63f5abb | 2008-07-15 21:21:51 +0200 | [diff] [blame] | 288 | ide_do_drive_cmd(drive, rq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | } |
| 290 | |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 291 | static void ide_floppy_callback(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | { |
| 293 | idefloppy_floppy_t *floppy = drive->driver_data; |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 294 | struct ide_atapi_pc *pc = floppy->pc; |
| 295 | int uptodate = pc->error ? 0 : 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 297 | debug_log("Reached %s\n", __func__); |
| 298 | |
Bartlomiej Zolnierkiewicz | dd2e9a0 | 2008-07-15 21:22:01 +0200 | [diff] [blame] | 299 | if (floppy->failed_pc == pc) |
| 300 | floppy->failed_pc = NULL; |
| 301 | |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 302 | if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 || |
| 303 | (pc->rq && blk_pc_request(pc->rq))) |
| 304 | uptodate = 1; /* FIXME */ |
| 305 | else if (pc->c[0] == GPCMD_REQUEST_SENSE) { |
| 306 | u8 *buf = floppy->pc->buf; |
Borislav Petkov | a6ff2d3 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 307 | |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 308 | if (!pc->error) { |
| 309 | floppy->sense_key = buf[2] & 0x0F; |
| 310 | floppy->asc = buf[12]; |
| 311 | floppy->ascq = buf[13]; |
| 312 | floppy->progress_indication = buf[15] & 0x80 ? |
| 313 | (u16)get_unaligned((u16 *)&buf[16]) : 0x10000; |
| 314 | |
| 315 | if (floppy->failed_pc) |
| 316 | debug_log("pc = %x, ", floppy->failed_pc->c[0]); |
| 317 | |
Borislav Petkov | a6ff2d3 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 318 | debug_log("sense key = %x, asc = %x, ascq = %x\n", |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 319 | floppy->sense_key, floppy->asc, floppy->ascq); |
| 320 | } else |
| 321 | printk(KERN_ERR "Error in REQUEST SENSE itself - " |
| 322 | "Aborting request!\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 325 | idefloppy_end_request(drive, uptodate, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | } |
| 327 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 328 | static void idefloppy_init_pc(struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | { |
Borislav Petkov | 68dc357 | 2008-07-16 20:33:47 +0200 | [diff] [blame] | 330 | memset(pc, 0, sizeof(*pc)); |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 331 | pc->buf = pc->pc_buf; |
| 332 | pc->buf_size = IDEFLOPPY_PC_BUFFER_SIZE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | } |
| 334 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 335 | static void idefloppy_create_request_sense_cmd(struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | { |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 337 | idefloppy_init_pc(pc); |
| 338 | pc->c[0] = GPCMD_REQUEST_SENSE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | pc->c[4] = 255; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 340 | pc->req_xfer = 18; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | } |
| 342 | |
| 343 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 344 | * Called when an error was detected during the last packet command. We queue a |
| 345 | * request sense packet command in the head of the request list. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | */ |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 347 | static void idefloppy_retry_pc(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | { |
Bartlomiej Zolnierkiewicz | 394a4c2 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 349 | struct ide_floppy_obj *floppy = drive->driver_data; |
| 350 | struct request *rq = &floppy->request_sense_rq; |
Bartlomiej Zolnierkiewicz | 2e8a6f8 | 2008-10-10 22:39:36 +0200 | [diff] [blame^] | 351 | struct ide_atapi_pc *pc = &floppy->request_sense_pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | |
Bartlomiej Zolnierkiewicz | 64a57fe | 2008-02-06 02:57:51 +0100 | [diff] [blame] | 353 | (void)ide_read_error(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | idefloppy_create_request_sense_cmd(pc); |
| 355 | idefloppy_queue_pc_head(drive, pc, rq); |
| 356 | } |
| 357 | |
Borislav Petkov | 0eea645 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 358 | /* The usual interrupt handler called during a packet command. */ |
Paolo Ciarrocchi | 52d3ccf | 2008-04-26 17:36:41 +0200 | [diff] [blame] | 359 | static ide_startstop_t idefloppy_pc_intr(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | { |
| 361 | idefloppy_floppy_t *floppy = drive->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | |
Bartlomiej Zolnierkiewicz | 646c0cb | 2008-07-15 21:22:03 +0200 | [diff] [blame] | 363 | return ide_pc_intr(drive, floppy->pc, idefloppy_pc_intr, |
| 364 | IDEFLOPPY_WAIT_CMD, NULL, idefloppy_update_buffers, |
| 365 | idefloppy_retry_pc, NULL, ide_floppy_io_buffers); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | } |
| 367 | |
| 368 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 369 | * What we have here is a classic case of a top half / bottom half interrupt |
| 370 | * service routine. In interrupt mode, the device sends an interrupt to signal |
| 371 | * that it is ready to receive a packet. However, we need to delay about 2-3 |
| 372 | * ticks before issuing the packet or we gets in trouble. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | */ |
Borislav Petkov | cbbc4e8 | 2008-07-15 21:22:03 +0200 | [diff] [blame] | 374 | static int idefloppy_transfer_pc(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | { |
| 376 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 377 | |
| 378 | /* Send the actual packet */ |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 379 | drive->hwif->tp_ops->output_data(drive, NULL, floppy->pc->c, 12); |
Bartlomiej Zolnierkiewicz | 9567b34 | 2008-04-28 23:44:36 +0200 | [diff] [blame] | 380 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | /* Timeout for the packet command */ |
| 382 | return IDEFLOPPY_WAIT_CMD; |
| 383 | } |
| 384 | |
Borislav Petkov | cbbc4e8 | 2008-07-15 21:22:03 +0200 | [diff] [blame] | 385 | |
| 386 | /* |
| 387 | * Called as an interrupt (or directly). When the device says it's ready for a |
| 388 | * packet, we schedule the packet transfer to occur about 2-3 ticks later in |
| 389 | * transfer_pc. |
| 390 | */ |
| 391 | static ide_startstop_t idefloppy_start_pc_transfer(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | { |
| 393 | idefloppy_floppy_t *floppy = drive->driver_data; |
Bartlomiej Zolnierkiewicz | 6ffb664 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 394 | struct ide_atapi_pc *pc = floppy->pc; |
Bartlomiej Zolnierkiewicz | 0b2eea4 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 395 | ide_expiry_t *expiry; |
| 396 | unsigned int timeout; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 398 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | * The following delay solves a problem with ATAPI Zip 100 drives |
| 400 | * where the Busy flag was apparently being deasserted before the |
| 401 | * unit was ready to receive data. This was happening on a |
| 402 | * 1200 MHz Athlon system. 10/26/01 25msec is too short, |
| 403 | * 40 and 50msec work well. idefloppy_pc_intr will not be actually |
| 404 | * used until after the packet is moved in about 50 msec. |
| 405 | */ |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 406 | if (drive->atapi_flags & IDE_AFLAG_ZIP_DRIVE) { |
Bartlomiej Zolnierkiewicz | 0b2eea4 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 407 | timeout = floppy->ticks; |
Borislav Petkov | cbbc4e8 | 2008-07-15 21:22:03 +0200 | [diff] [blame] | 408 | expiry = &idefloppy_transfer_pc; |
Bartlomiej Zolnierkiewicz | 0b2eea4 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 409 | } else { |
| 410 | timeout = IDEFLOPPY_WAIT_CMD; |
| 411 | expiry = NULL; |
| 412 | } |
Borislav Petkov | 0078df2 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 413 | |
Bartlomiej Zolnierkiewicz | 594c16d | 2008-07-15 21:21:58 +0200 | [diff] [blame] | 414 | return ide_transfer_pc(drive, pc, idefloppy_pc_intr, timeout, expiry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | } |
| 416 | |
Borislav Petkov | d652c13 | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 417 | static void ide_floppy_report_error(idefloppy_floppy_t *floppy, |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 418 | struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | { |
Borislav Petkov | d652c13 | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 420 | /* supress error messages resulting from Medium not present */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | if (floppy->sense_key == 0x02 && |
| 422 | floppy->asc == 0x3a && |
| 423 | floppy->ascq == 0x00) |
Borislav Petkov | d652c13 | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 424 | return; |
| 425 | |
| 426 | printk(KERN_ERR "ide-floppy: %s: I/O error, pc = %2x, key = %2x, " |
| 427 | "asc = %2x, ascq = %2x\n", |
| 428 | floppy->drive->name, pc->c[0], floppy->sense_key, |
| 429 | floppy->asc, floppy->ascq); |
| 430 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | } |
| 432 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 433 | static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive, |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 434 | struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | { |
| 436 | idefloppy_floppy_t *floppy = drive->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | if (floppy->failed_pc == NULL && |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 439 | pc->c[0] != GPCMD_REQUEST_SENSE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | floppy->failed_pc = pc; |
| 441 | /* Set the current packet command */ |
| 442 | floppy->pc = pc; |
| 443 | |
Borislav Petkov | 757ced8 | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 444 | if (pc->retries > IDEFLOPPY_MAX_PC_RETRIES) { |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 445 | if (!(pc->flags & PC_FLAG_SUPPRESS_ERROR)) |
Borislav Petkov | 757ced8 | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 446 | ide_floppy_report_error(floppy, pc); |
| 447 | /* Giving up */ |
| 448 | pc->error = IDEFLOPPY_ERROR_GENERAL; |
| 449 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | floppy->failed_pc = NULL; |
Borislav Petkov | 2207fa5 | 2008-07-23 19:55:59 +0200 | [diff] [blame] | 451 | drive->pc_callback(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | return ide_stopped; |
| 453 | } |
| 454 | |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 455 | debug_log("Retry number - %d\n", pc->retries); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | |
| 457 | pc->retries++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | |
Borislav Petkov | cbbc4e8 | 2008-07-15 21:22:03 +0200 | [diff] [blame] | 459 | return ide_issue_pc(drive, pc, idefloppy_start_pc_transfer, |
Bartlomiej Zolnierkiewicz | 6bf1641 | 2008-07-15 21:22:00 +0200 | [diff] [blame] | 460 | IDEFLOPPY_WAIT_CMD, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | } |
| 462 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 463 | static void idefloppy_create_prevent_cmd(struct ide_atapi_pc *pc, int prevent) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | { |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 465 | debug_log("creating prevent removal command, prevent = %d\n", prevent); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | |
| 467 | idefloppy_init_pc(pc); |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 468 | pc->c[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | pc->c[4] = prevent; |
| 470 | } |
| 471 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 472 | static void idefloppy_create_read_capacity_cmd(struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | { |
| 474 | idefloppy_init_pc(pc); |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 475 | pc->c[0] = GPCMD_READ_FORMAT_CAPACITIES; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | pc->c[7] = 255; |
| 477 | pc->c[8] = 255; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 478 | pc->req_xfer = 255; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 479 | } |
| 480 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 481 | static void idefloppy_create_format_unit_cmd(struct ide_atapi_pc *pc, int b, |
| 482 | int l, int flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | { |
| 484 | idefloppy_init_pc(pc); |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 485 | pc->c[0] = GPCMD_FORMAT_UNIT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | pc->c[1] = 0x17; |
| 487 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 488 | memset(pc->buf, 0, 12); |
| 489 | pc->buf[1] = 0xA2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | /* Default format list header, u8 1: FOV/DCRT/IMM bits set */ |
| 491 | |
| 492 | if (flags & 1) /* Verify bit on... */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 493 | pc->buf[1] ^= 0x20; /* ... turn off DCRT bit */ |
| 494 | pc->buf[3] = 8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 496 | put_unaligned(cpu_to_be32(b), (unsigned int *)(&pc->buf[4])); |
| 497 | put_unaligned(cpu_to_be32(l), (unsigned int *)(&pc->buf[8])); |
| 498 | pc->buf_size = 12; |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 499 | pc->flags |= PC_FLAG_WRITING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | } |
| 501 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 502 | /* A mode sense command is used to "sense" floppy parameters. */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 503 | static void idefloppy_create_mode_sense_cmd(struct ide_atapi_pc *pc, |
| 504 | u8 page_code, u8 type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | { |
Borislav Petkov | 24a5d70 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 506 | u16 length = 8; /* sizeof(Mode Parameter Header) = 8 Bytes */ |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 507 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | idefloppy_init_pc(pc); |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 509 | pc->c[0] = GPCMD_MODE_SENSE_10; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | pc->c[1] = 0; |
| 511 | pc->c[2] = page_code + (type << 6); |
| 512 | |
| 513 | switch (page_code) { |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 514 | case IDEFLOPPY_CAPABILITIES_PAGE: |
| 515 | length += 12; |
| 516 | break; |
| 517 | case IDEFLOPPY_FLEXIBLE_DISK_PAGE: |
| 518 | length += 32; |
| 519 | break; |
| 520 | default: |
| 521 | printk(KERN_ERR "ide-floppy: unsupported page code " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | "in create_mode_sense_cmd\n"); |
| 523 | } |
Borislav Petkov | 8f62243 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 524 | put_unaligned(cpu_to_be16(length), (u16 *) &pc->c[7]); |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 525 | pc->req_xfer = length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | } |
| 527 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 528 | static void idefloppy_create_start_stop_cmd(struct ide_atapi_pc *pc, int start) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | { |
| 530 | idefloppy_init_pc(pc); |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 531 | pc->c[0] = GPCMD_START_STOP_UNIT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 532 | pc->c[4] = start; |
| 533 | } |
| 534 | |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 535 | static void idefloppy_create_rw_cmd(idefloppy_floppy_t *floppy, |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 536 | struct ide_atapi_pc *pc, struct request *rq, |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 537 | unsigned long sector) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | { |
| 539 | int block = sector / floppy->bs_factor; |
| 540 | int blocks = rq->nr_sectors / floppy->bs_factor; |
| 541 | int cmd = rq_data_dir(rq); |
| 542 | |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 543 | debug_log("create_rw10_cmd: block == %d, blocks == %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 544 | block, blocks); |
| 545 | |
| 546 | idefloppy_init_pc(pc); |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 547 | pc->c[0] = cmd == READ ? GPCMD_READ_10 : GPCMD_WRITE_10; |
| 548 | put_unaligned(cpu_to_be16(blocks), (unsigned short *)&pc->c[7]); |
Borislav Petkov | 8f62243 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 549 | put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[2]); |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 550 | |
Borislav Petkov | 20cd93be | 2008-07-23 19:56:00 +0200 | [diff] [blame] | 551 | memcpy(rq->cmd, pc->c, 12); |
| 552 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 553 | pc->rq = rq; |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 554 | pc->b_count = 0; |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 555 | if (rq->cmd_flags & REQ_RW) |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 556 | pc->flags |= PC_FLAG_WRITING; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 557 | pc->buf = NULL; |
| 558 | pc->req_xfer = pc->buf_size = blocks * floppy->block_size; |
Bartlomiej Zolnierkiewicz | 5e33109 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 559 | pc->flags |= PC_FLAG_DMA_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | } |
| 561 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 562 | static void idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy, |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 563 | struct ide_atapi_pc *pc, struct request *rq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | idefloppy_init_pc(pc); |
| 566 | memcpy(pc->c, rq->cmd, sizeof(pc->c)); |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 567 | pc->rq = rq; |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 568 | pc->b_count = 0; |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 569 | if (rq->data_len && rq_data_dir(rq) == WRITE) |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 570 | pc->flags |= PC_FLAG_WRITING; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 571 | pc->buf = rq->data; |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 572 | if (rq->bio) |
Bartlomiej Zolnierkiewicz | 5e33109 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 573 | pc->flags |= PC_FLAG_DMA_OK; |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 574 | /* |
| 575 | * possibly problematic, doesn't look like ide-floppy correctly |
| 576 | * handled scattered requests if dma fails... |
| 577 | */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 578 | pc->req_xfer = pc->buf_size = rq->data_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 579 | } |
| 580 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 581 | static ide_startstop_t idefloppy_do_request(ide_drive_t *drive, |
| 582 | struct request *rq, sector_t block_s) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | { |
| 584 | idefloppy_floppy_t *floppy = drive->driver_data; |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 585 | ide_hwif_t *hwif = drive->hwif; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 586 | struct ide_atapi_pc *pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | unsigned long block = (unsigned long)block_s; |
| 588 | |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 589 | debug_log("%s: dev: %s, cmd: 0x%x, cmd_type: %x, errors: %d\n", |
| 590 | __func__, rq->rq_disk ? rq->rq_disk->disk_name : "?", |
| 591 | rq->cmd[0], rq->cmd_type, rq->errors); |
| 592 | |
| 593 | debug_log("%s: sector: %ld, nr_sectors: %ld, current_nr_sectors: %d\n", |
| 594 | __func__, (long)rq->sector, rq->nr_sectors, |
| 595 | rq->current_nr_sectors); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | |
| 597 | if (rq->errors >= ERROR_MAX) { |
Borislav Petkov | d652c13 | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 598 | if (floppy->failed_pc) |
| 599 | ide_floppy_report_error(floppy, floppy->failed_pc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | else |
| 601 | printk(KERN_ERR "ide-floppy: %s: I/O error\n", |
| 602 | drive->name); |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 603 | idefloppy_end_request(drive, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | return ide_stopped; |
| 605 | } |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 606 | if (blk_fs_request(rq)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | if (((long)rq->sector % floppy->bs_factor) || |
| 608 | (rq->nr_sectors % floppy->bs_factor)) { |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 609 | printk(KERN_ERR "%s: unsupported r/w request size\n", |
| 610 | drive->name); |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 611 | idefloppy_end_request(drive, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | return ide_stopped; |
| 613 | } |
Bartlomiej Zolnierkiewicz | 2e8a6f8 | 2008-10-10 22:39:36 +0200 | [diff] [blame^] | 614 | pc = &floppy->queued_pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 615 | idefloppy_create_rw_cmd(floppy, pc, rq, block); |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 616 | } else if (blk_special_request(rq)) { |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 617 | pc = (struct ide_atapi_pc *) rq->buffer; |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 618 | } else if (blk_pc_request(rq)) { |
Bartlomiej Zolnierkiewicz | 2e8a6f8 | 2008-10-10 22:39:36 +0200 | [diff] [blame^] | 619 | pc = &floppy->queued_pc; |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 620 | idefloppy_blockpc_cmd(floppy, pc, rq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | } else { |
| 622 | blk_dump_rq_flags(rq, |
| 623 | "ide-floppy: unsupported command in queue"); |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 624 | idefloppy_end_request(drive, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 625 | return ide_stopped; |
| 626 | } |
| 627 | |
Borislav Petkov | b98b340 | 2008-10-10 22:39:35 +0200 | [diff] [blame] | 628 | ide_init_sg_cmd(drive, rq); |
| 629 | ide_map_sg(drive, rq); |
| 630 | |
| 631 | pc->sg = hwif->sg_table; |
| 632 | pc->sg_cnt = hwif->sg_nents; |
| 633 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | pc->rq = rq; |
Bartlomiej Zolnierkiewicz | 5d41893 | 2008-07-15 21:21:57 +0200 | [diff] [blame] | 635 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 636 | return idefloppy_issue_pc(drive, pc); |
| 637 | } |
| 638 | |
| 639 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 640 | * Add a special packet command request to the tail of the request queue, |
| 641 | * and wait for it to be serviced. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 643 | static int idefloppy_queue_pc_tail(ide_drive_t *drive, struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | { |
| 645 | struct ide_floppy_obj *floppy = drive->driver_data; |
FUJITA Tomonori | 6fe1623 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 646 | struct request *rq; |
| 647 | int error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | |
FUJITA Tomonori | 6fe1623 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 649 | rq = blk_get_request(drive->queue, READ, __GFP_WAIT); |
| 650 | rq->buffer = (char *) pc; |
| 651 | rq->cmd_type = REQ_TYPE_SPECIAL; |
Borislav Petkov | 20cd93be | 2008-07-23 19:56:00 +0200 | [diff] [blame] | 652 | memcpy(rq->cmd, pc->c, 12); |
FUJITA Tomonori | 6fe1623 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 653 | error = blk_execute_rq(drive->queue, floppy->disk, rq, 0); |
| 654 | blk_put_request(rq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | |
FUJITA Tomonori | 6fe1623 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 656 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | } |
| 658 | |
| 659 | /* |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 660 | * Look at the flexible disk page parameters. We ignore the CHS capacity |
| 661 | * parameters and use the LBA parameters instead. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 662 | */ |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 663 | static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | { |
| 665 | idefloppy_floppy_t *floppy = drive->driver_data; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 666 | struct ide_atapi_pc pc; |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 667 | u8 *page; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | int capacity, lba_capacity; |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 669 | u16 transfer_rate, sector_size, cyls, rpm; |
| 670 | u8 heads, sectors; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 672 | idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE, |
| 673 | MODE_SENSE_CURRENT); |
| 674 | |
| 675 | if (idefloppy_queue_pc_tail(drive, &pc)) { |
| 676 | printk(KERN_ERR "ide-floppy: Can't get flexible disk page" |
| 677 | " parameters\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | return 1; |
| 679 | } |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 680 | floppy->wp = !!(pc.buf[3] & 0x80); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | set_disk_ro(floppy->disk, floppy->wp); |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 682 | page = &pc.buf[8]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | |
Harvey Harrison | 85ae98a3 | 2008-07-16 20:33:47 +0200 | [diff] [blame] | 684 | transfer_rate = be16_to_cpup((__be16 *)&pc.buf[8 + 2]); |
| 685 | sector_size = be16_to_cpup((__be16 *)&pc.buf[8 + 6]); |
| 686 | cyls = be16_to_cpup((__be16 *)&pc.buf[8 + 8]); |
| 687 | rpm = be16_to_cpup((__be16 *)&pc.buf[8 + 28]); |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 688 | heads = pc.buf[8 + 4]; |
| 689 | sectors = pc.buf[8 + 5]; |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 690 | |
| 691 | capacity = cyls * heads * sectors * sector_size; |
| 692 | |
| 693 | if (memcmp(page, &floppy->flexible_disk_page, 32)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | printk(KERN_INFO "%s: %dkB, %d/%d/%d CHS, %d kBps, " |
| 695 | "%d sector size, %d rpm\n", |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 696 | drive->name, capacity / 1024, cyls, heads, |
| 697 | sectors, transfer_rate / 8, sector_size, rpm); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 699 | memcpy(&floppy->flexible_disk_page, page, 32); |
| 700 | drive->bios_cyl = cyls; |
| 701 | drive->bios_head = heads; |
| 702 | drive->bios_sect = sectors; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | lba_capacity = floppy->blocks * floppy->block_size; |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 704 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | if (capacity < lba_capacity) { |
| 706 | printk(KERN_NOTICE "%s: The disk reports a capacity of %d " |
| 707 | "bytes, but the drive only handles %d\n", |
| 708 | drive->name, lba_capacity, capacity); |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 709 | floppy->blocks = floppy->block_size ? |
| 710 | capacity / floppy->block_size : 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | } |
| 712 | return 0; |
| 713 | } |
| 714 | |
Borislav Petkov | 948391d | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 715 | static int idefloppy_get_sfrp_bit(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | { |
| 717 | idefloppy_floppy_t *floppy = drive->driver_data; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 718 | struct ide_atapi_pc pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 719 | |
| 720 | floppy->srfp = 0; |
| 721 | idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_CAPABILITIES_PAGE, |
| 722 | MODE_SENSE_CURRENT); |
| 723 | |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 724 | pc.flags |= PC_FLAG_SUPPRESS_ERROR; |
Borislav Petkov | 948391d | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 725 | if (idefloppy_queue_pc_tail(drive, &pc)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 726 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 727 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 728 | floppy->srfp = pc.buf[8 + 2] & 0x40; |
Bartlomiej Zolnierkiewicz | e3faa24 | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 729 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 730 | } |
| 731 | |
| 732 | /* |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 733 | * Determine if a media is present in the floppy drive, and if so, its LBA |
| 734 | * capacity. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | */ |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 736 | static int ide_floppy_get_capacity(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | { |
| 738 | idefloppy_floppy_t *floppy = drive->driver_data; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 739 | struct ide_atapi_pc pc; |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 740 | u8 *cap_desc; |
| 741 | u8 header_len, desc_cnt; |
| 742 | int i, rc = 1, blocks, length; |
| 743 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | drive->bios_cyl = 0; |
| 745 | drive->bios_head = drive->bios_sect = 0; |
Alan Cox | fdb77da | 2007-02-17 02:40:20 +0100 | [diff] [blame] | 746 | floppy->blocks = 0; |
| 747 | floppy->bs_factor = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | set_capacity(floppy->disk, 0); |
| 749 | |
| 750 | idefloppy_create_read_capacity_cmd(&pc); |
| 751 | if (idefloppy_queue_pc_tail(drive, &pc)) { |
| 752 | printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n"); |
| 753 | return 1; |
| 754 | } |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 755 | header_len = pc.buf[3]; |
| 756 | cap_desc = &pc.buf[4]; |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 757 | desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 758 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 759 | for (i = 0; i < desc_cnt; i++) { |
| 760 | unsigned int desc_start = 4 + i*8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 761 | |
Harvey Harrison | 85ae98a3 | 2008-07-16 20:33:47 +0200 | [diff] [blame] | 762 | blocks = be32_to_cpup((__be32 *)&pc.buf[desc_start]); |
| 763 | length = be16_to_cpup((__be16 *)&pc.buf[desc_start + 6]); |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 764 | |
| 765 | debug_log("Descriptor %d: %dkB, %d blocks, %d sector size\n", |
| 766 | i, blocks * length / 1024, blocks, length); |
| 767 | |
| 768 | if (i) |
| 769 | continue; |
| 770 | /* |
| 771 | * the code below is valid only for the 1st descriptor, ie i=0 |
| 772 | */ |
| 773 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 774 | switch (pc.buf[desc_start + 4] & 0x03) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 775 | /* Clik! drive returns this instead of CAPACITY_CURRENT */ |
| 776 | case CAPACITY_UNFORMATTED: |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 777 | if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 778 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 779 | * If it is not a clik drive, break out |
| 780 | * (maintains previous driver behaviour) |
| 781 | */ |
| 782 | break; |
| 783 | case CAPACITY_CURRENT: |
| 784 | /* Normal Zip/LS-120 disks */ |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 785 | if (memcmp(cap_desc, &floppy->cap_desc, 8)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 786 | printk(KERN_INFO "%s: %dkB, %d blocks, %d " |
| 787 | "sector size\n", drive->name, |
| 788 | blocks * length / 1024, blocks, length); |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 789 | memcpy(&floppy->cap_desc, cap_desc, 8); |
| 790 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | if (!length || length % 512) { |
| 792 | printk(KERN_NOTICE "%s: %d bytes block size " |
| 793 | "not supported\n", drive->name, length); |
| 794 | } else { |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 795 | floppy->blocks = blocks; |
| 796 | floppy->block_size = length; |
| 797 | floppy->bs_factor = length / 512; |
| 798 | if (floppy->bs_factor != 1) |
| 799 | printk(KERN_NOTICE "%s: warning: non " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 800 | "512 bytes block size not " |
| 801 | "fully supported\n", |
| 802 | drive->name); |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 803 | rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 804 | } |
| 805 | break; |
| 806 | case CAPACITY_NO_CARTRIDGE: |
| 807 | /* |
| 808 | * This is a KERN_ERR so it appears on screen |
| 809 | * for the user to see |
| 810 | */ |
| 811 | printk(KERN_ERR "%s: No disk in drive\n", drive->name); |
| 812 | break; |
| 813 | case CAPACITY_INVALID: |
| 814 | printk(KERN_ERR "%s: Invalid capacity for disk " |
| 815 | "in drive\n", drive->name); |
| 816 | break; |
| 817 | } |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 818 | debug_log("Descriptor 0 Code: %d\n", |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 819 | pc.buf[desc_start + 4] & 0x03); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | } |
| 821 | |
| 822 | /* Clik! disk does not support get_flexible_disk_page */ |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 823 | if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 824 | (void) ide_floppy_get_flexible_disk_page(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 825 | |
| 826 | set_capacity(floppy->disk, floppy->blocks * floppy->bs_factor); |
| 827 | return rc; |
| 828 | } |
| 829 | |
| 830 | /* |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 831 | * Obtain the list of formattable capacities. |
| 832 | * Very similar to ide_floppy_get_capacity, except that we push the capacity |
| 833 | * descriptors to userland, instead of our own structures. |
| 834 | * |
| 835 | * Userland gives us the following structure: |
| 836 | * |
| 837 | * struct idefloppy_format_capacities { |
| 838 | * int nformats; |
| 839 | * struct { |
| 840 | * int nblocks; |
| 841 | * int blocksize; |
| 842 | * } formats[]; |
| 843 | * }; |
| 844 | * |
| 845 | * userland initializes nformats to the number of allocated formats[] records. |
| 846 | * On exit we set nformats to the number of records we've actually initialized. |
| 847 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 848 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 849 | static int ide_floppy_get_format_capacities(ide_drive_t *drive, int __user *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | { |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 851 | struct ide_atapi_pc pc; |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 852 | u8 header_len, desc_cnt; |
| 853 | int i, blocks, length, u_array_size, u_index; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 854 | int __user *argp; |
| 855 | |
| 856 | if (get_user(u_array_size, arg)) |
Bartlomiej Zolnierkiewicz | e3faa24 | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 857 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 858 | |
| 859 | if (u_array_size <= 0) |
Bartlomiej Zolnierkiewicz | e3faa24 | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 860 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 861 | |
| 862 | idefloppy_create_read_capacity_cmd(&pc); |
| 863 | if (idefloppy_queue_pc_tail(drive, &pc)) { |
| 864 | printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n"); |
Bartlomiej Zolnierkiewicz | e3faa24 | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 865 | return -EIO; |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 866 | } |
Bartlomiej Zolnierkiewicz | e3faa24 | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 867 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 868 | header_len = pc.buf[3]; |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 869 | desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 870 | |
| 871 | u_index = 0; |
| 872 | argp = arg + 1; |
| 873 | |
| 874 | /* |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 875 | * We always skip the first capacity descriptor. That's the current |
| 876 | * capacity. We are interested in the remaining descriptors, the |
| 877 | * formattable capacities. |
| 878 | */ |
| 879 | for (i = 1; i < desc_cnt; i++) { |
| 880 | unsigned int desc_start = 4 + i*8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 882 | if (u_index >= u_array_size) |
| 883 | break; /* User-supplied buffer too small */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 884 | |
Harvey Harrison | 85ae98a3 | 2008-07-16 20:33:47 +0200 | [diff] [blame] | 885 | blocks = be32_to_cpup((__be32 *)&pc.buf[desc_start]); |
| 886 | length = be16_to_cpup((__be16 *)&pc.buf[desc_start + 6]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | |
| 888 | if (put_user(blocks, argp)) |
Bartlomiej Zolnierkiewicz | e3faa24 | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 889 | return -EFAULT; |
| 890 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 891 | ++argp; |
| 892 | |
| 893 | if (put_user(length, argp)) |
Bartlomiej Zolnierkiewicz | e3faa24 | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 894 | return -EFAULT; |
| 895 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | ++argp; |
| 897 | |
| 898 | ++u_index; |
| 899 | } |
| 900 | |
| 901 | if (put_user(u_index, arg)) |
Bartlomiej Zolnierkiewicz | e3faa24 | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 902 | return -EFAULT; |
| 903 | |
| 904 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 905 | } |
| 906 | |
| 907 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 908 | * Get ATAPI_FORMAT_UNIT progress indication. |
| 909 | * |
| 910 | * Userland gives a pointer to an int. The int is set to a progress |
| 911 | * indicator 0-65536, with 65536=100%. |
| 912 | * |
| 913 | * If the drive does not support format progress indication, we just check |
| 914 | * the dsc bit, and return either 0 or 65536. |
| 915 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 916 | |
Bartlomiej Zolnierkiewicz | d56c99e | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 917 | static int ide_floppy_get_format_progress(ide_drive_t *drive, int __user *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 918 | { |
| 919 | idefloppy_floppy_t *floppy = drive->driver_data; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 920 | struct ide_atapi_pc pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 921 | int progress_indication = 0x10000; |
| 922 | |
| 923 | if (floppy->srfp) { |
| 924 | idefloppy_create_request_sense_cmd(&pc); |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 925 | if (idefloppy_queue_pc_tail(drive, &pc)) |
Bartlomiej Zolnierkiewicz | e3faa24 | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 926 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 927 | |
| 928 | if (floppy->sense_key == 2 && |
| 929 | floppy->asc == 4 && |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 930 | floppy->ascq == 4) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 931 | progress_indication = floppy->progress_indication; |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 932 | |
| 933 | /* Else assume format_unit has finished, and we're at 0x10000 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 934 | } else { |
Bartlomiej Zolnierkiewicz | b73c7ee | 2008-07-23 19:55:52 +0200 | [diff] [blame] | 935 | ide_hwif_t *hwif = drive->hwif; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 936 | unsigned long flags; |
Bartlomiej Zolnierkiewicz | 22c525b | 2008-01-25 22:17:11 +0100 | [diff] [blame] | 937 | u8 stat; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 938 | |
| 939 | local_irq_save(flags); |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 940 | stat = hwif->tp_ops->read_status(hwif); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 941 | local_irq_restore(flags); |
| 942 | |
Bartlomiej Zolnierkiewicz | 3a7d248 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 943 | progress_indication = ((stat & ATA_DSC) == 0) ? 0 : 0x10000; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 944 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | |
Bartlomiej Zolnierkiewicz | e3faa24 | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 946 | if (put_user(progress_indication, arg)) |
| 947 | return -EFAULT; |
| 948 | |
| 949 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 950 | } |
| 951 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 952 | static sector_t idefloppy_capacity(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 953 | { |
| 954 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 955 | unsigned long capacity = floppy->blocks * floppy->bs_factor; |
| 956 | |
| 957 | return capacity; |
| 958 | } |
| 959 | |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 960 | #ifdef CONFIG_IDE_PROC_FS |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 961 | ide_devset_rw(bios_cyl, 0, 1023, bios_cyl); |
| 962 | ide_devset_rw(bios_head, 0, 255, bios_head); |
| 963 | ide_devset_rw(bios_sect, 0, 63, bios_sect); |
| 964 | |
| 965 | static int get_ticks(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 966 | { |
| 967 | idefloppy_floppy_t *floppy = drive->driver_data; |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 968 | return floppy->ticks; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 969 | } |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 970 | |
| 971 | static int set_ticks(ide_drive_t *drive, int arg) |
| 972 | { |
| 973 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 974 | floppy->ticks = arg; |
| 975 | return 0; |
| 976 | } |
| 977 | |
| 978 | IDE_DEVSET(ticks, S_RW, 0, 255, get_ticks, set_ticks); |
| 979 | |
| 980 | static const struct ide_devset *idefloppy_settings[] = { |
| 981 | &ide_devset_bios_cyl, |
| 982 | &ide_devset_bios_head, |
| 983 | &ide_devset_bios_sect, |
| 984 | &ide_devset_ticks, |
| 985 | NULL |
| 986 | }; |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 987 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 988 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 989 | static void idefloppy_setup(ide_drive_t *drive, idefloppy_floppy_t *floppy) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 990 | { |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 991 | u16 *id = drive->id; |
Borislav Petkov | 3ad6776 | 2008-04-18 00:46:25 +0200 | [diff] [blame] | 992 | u8 gcw[2]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 993 | |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 994 | *((u16 *)&gcw) = id[ATA_ID_CONFIG]; |
Bartlomiej Zolnierkiewicz | 2e8a6f8 | 2008-10-10 22:39:36 +0200 | [diff] [blame^] | 995 | |
Borislav Petkov | 2207fa5 | 2008-07-23 19:55:59 +0200 | [diff] [blame] | 996 | drive->pc_callback = ide_floppy_callback; |
Borislav Petkov | 3ad6776 | 2008-04-18 00:46:25 +0200 | [diff] [blame] | 997 | |
| 998 | if (((gcw[0] & 0x60) >> 5) == 1) |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 999 | drive->atapi_flags |= IDE_AFLAG_DRQ_INTERRUPT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1000 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1001 | * We used to check revisions here. At this point however I'm giving up. |
| 1002 | * Just assume they are all broken, its easier. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1003 | * |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1004 | * The actual reason for the workarounds was likely a driver bug after |
| 1005 | * all rather than a firmware bug, and the workaround below used to hide |
| 1006 | * it. It should be fixed as of version 1.9, but to be on the safe side |
| 1007 | * we'll leave the limitation below for the 2.2.x tree. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | */ |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 1009 | if (!strncmp((char *)&id[ATA_ID_PROD], "IOMEGA ZIP 100 ATAPI", 20)) { |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1010 | drive->atapi_flags |= IDE_AFLAG_ZIP_DRIVE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1011 | /* This value will be visible in the /proc/ide/hdx/settings */ |
| 1012 | floppy->ticks = IDEFLOPPY_TICKS_DELAY; |
| 1013 | blk_queue_max_sectors(drive->queue, 64); |
| 1014 | } |
| 1015 | |
| 1016 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1017 | * Guess what? The IOMEGA Clik! drive also needs the above fix. It makes |
| 1018 | * nasty clicking noises without it, so please don't remove this. |
| 1019 | */ |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 1020 | if (strncmp((char *)&id[ATA_ID_PROD], "IOMEGA Clik!", 11) == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1021 | blk_queue_max_sectors(drive->queue, 64); |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1022 | drive->atapi_flags |= IDE_AFLAG_CLIK_DRIVE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1023 | } |
| 1024 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1025 | (void) ide_floppy_get_capacity(drive); |
Bartlomiej Zolnierkiewicz | 1e874f4 | 2008-10-10 22:39:27 +0200 | [diff] [blame] | 1026 | |
| 1027 | ide_proc_register_driver(drive, floppy->driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | } |
| 1029 | |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 1030 | static void ide_floppy_remove(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1031 | { |
| 1032 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 1033 | struct gendisk *g = floppy->disk; |
| 1034 | |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 1035 | ide_proc_unregister_driver(drive, floppy->driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1036 | |
| 1037 | del_gendisk(g); |
| 1038 | |
| 1039 | ide_floppy_put(floppy); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1040 | } |
| 1041 | |
Borislav Petkov | 9a24b63 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 1042 | static void idefloppy_cleanup_obj(struct kref *kref) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1043 | { |
| 1044 | struct ide_floppy_obj *floppy = to_ide_floppy(kref); |
| 1045 | ide_drive_t *drive = floppy->drive; |
| 1046 | struct gendisk *g = floppy->disk; |
| 1047 | |
| 1048 | drive->driver_data = NULL; |
| 1049 | g->private_data = NULL; |
| 1050 | put_disk(g); |
| 1051 | kfree(floppy); |
| 1052 | } |
| 1053 | |
Bartlomiej Zolnierkiewicz | ecfd80e | 2007-05-10 00:01:09 +0200 | [diff] [blame] | 1054 | #ifdef CONFIG_IDE_PROC_FS |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1055 | static int proc_idefloppy_read_capacity(char *page, char **start, off_t off, |
| 1056 | int count, int *eof, void *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1057 | { |
| 1058 | ide_drive_t*drive = (ide_drive_t *)data; |
| 1059 | int len; |
| 1060 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1061 | len = sprintf(page, "%llu\n", (long long)idefloppy_capacity(drive)); |
| 1062 | PROC_IDE_READ_RETURN(page, start, off, count, eof, len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1063 | } |
| 1064 | |
| 1065 | static ide_proc_entry_t idefloppy_proc[] = { |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1066 | { "capacity", S_IFREG|S_IRUGO, proc_idefloppy_read_capacity, NULL }, |
| 1067 | { "geometry", S_IFREG|S_IRUGO, proc_ide_read_geometry, NULL }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1068 | { NULL, 0, NULL, NULL } |
| 1069 | }; |
Bartlomiej Zolnierkiewicz | ecfd80e | 2007-05-10 00:01:09 +0200 | [diff] [blame] | 1070 | #endif /* CONFIG_IDE_PROC_FS */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1071 | |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 1072 | static int ide_floppy_probe(ide_drive_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1073 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1074 | static ide_driver_t idefloppy_driver = { |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1075 | .gen_driver = { |
Laurent Riffard | 4ef3b8f | 2005-11-18 22:15:40 +0100 | [diff] [blame] | 1076 | .owner = THIS_MODULE, |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1077 | .name = "ide-floppy", |
| 1078 | .bus = &ide_bus_type, |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1079 | }, |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 1080 | .probe = ide_floppy_probe, |
| 1081 | .remove = ide_floppy_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1082 | .version = IDEFLOPPY_VERSION, |
| 1083 | .media = ide_floppy, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1084 | .do_request = idefloppy_do_request, |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 1085 | .end_request = idefloppy_end_request, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1086 | .error = __ide_error, |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 1087 | #ifdef CONFIG_IDE_PROC_FS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1088 | .proc = idefloppy_proc, |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 1089 | .settings = idefloppy_settings, |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 1090 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1091 | }; |
| 1092 | |
| 1093 | static int idefloppy_open(struct inode *inode, struct file *filp) |
| 1094 | { |
| 1095 | struct gendisk *disk = inode->i_bdev->bd_disk; |
| 1096 | struct ide_floppy_obj *floppy; |
| 1097 | ide_drive_t *drive; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 1098 | struct ide_atapi_pc pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1099 | int ret = 0; |
| 1100 | |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 1101 | debug_log("Reached %s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1102 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1103 | floppy = ide_floppy_get(disk); |
| 1104 | if (!floppy) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1105 | return -ENXIO; |
| 1106 | |
| 1107 | drive = floppy->drive; |
| 1108 | |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 1109 | floppy->openers++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1110 | |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 1111 | if (floppy->openers == 1) { |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1112 | drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1113 | /* Just in case */ |
| 1114 | |
Borislav Petkov | c96a7df | 2008-07-16 20:33:46 +0200 | [diff] [blame] | 1115 | idefloppy_init_pc(&pc); |
| 1116 | pc.c[0] = GPCMD_TEST_UNIT_READY; |
| 1117 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1118 | if (idefloppy_queue_pc_tail(drive, &pc)) { |
| 1119 | idefloppy_create_start_stop_cmd(&pc, 1); |
| 1120 | (void) idefloppy_queue_pc_tail(drive, &pc); |
| 1121 | } |
| 1122 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1123 | if (ide_floppy_get_capacity(drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1124 | && (filp->f_flags & O_NDELAY) == 0 |
| 1125 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1126 | * Allow O_NDELAY to open a drive without a disk, or with an |
| 1127 | * unreadable disk, so that we can get the format capacity |
| 1128 | * of the drive or begin the format - Sam |
| 1129 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1130 | ) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1131 | ret = -EIO; |
| 1132 | goto out_put_floppy; |
| 1133 | } |
| 1134 | |
| 1135 | if (floppy->wp && (filp->f_mode & 2)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1136 | ret = -EROFS; |
| 1137 | goto out_put_floppy; |
| 1138 | } |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1139 | drive->atapi_flags |= IDE_AFLAG_MEDIA_CHANGED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1140 | /* IOMEGA Clik! drives do not support lock/unlock commands */ |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1141 | if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1142 | idefloppy_create_prevent_cmd(&pc, 1); |
| 1143 | (void) idefloppy_queue_pc_tail(drive, &pc); |
| 1144 | } |
| 1145 | check_disk_change(inode->i_bdev); |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1146 | } else if (drive->atapi_flags & IDE_AFLAG_FORMAT_IN_PROGRESS) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1147 | ret = -EBUSY; |
| 1148 | goto out_put_floppy; |
| 1149 | } |
| 1150 | return 0; |
| 1151 | |
| 1152 | out_put_floppy: |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 1153 | floppy->openers--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1154 | ide_floppy_put(floppy); |
| 1155 | return ret; |
| 1156 | } |
| 1157 | |
| 1158 | static int idefloppy_release(struct inode *inode, struct file *filp) |
| 1159 | { |
| 1160 | struct gendisk *disk = inode->i_bdev->bd_disk; |
| 1161 | struct ide_floppy_obj *floppy = ide_floppy_g(disk); |
| 1162 | ide_drive_t *drive = floppy->drive; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 1163 | struct ide_atapi_pc pc; |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 1164 | |
| 1165 | debug_log("Reached %s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1166 | |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 1167 | if (floppy->openers == 1) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1168 | /* IOMEGA Clik! drives do not support lock/unlock commands */ |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1169 | if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1170 | idefloppy_create_prevent_cmd(&pc, 0); |
| 1171 | (void) idefloppy_queue_pc_tail(drive, &pc); |
| 1172 | } |
| 1173 | |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1174 | drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1175 | } |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 1176 | |
| 1177 | floppy->openers--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1178 | |
| 1179 | ide_floppy_put(floppy); |
| 1180 | |
| 1181 | return 0; |
| 1182 | } |
| 1183 | |
Christoph Hellwig | a885c8c | 2006-01-08 01:02:50 -0800 | [diff] [blame] | 1184 | static int idefloppy_getgeo(struct block_device *bdev, struct hd_geometry *geo) |
| 1185 | { |
| 1186 | struct ide_floppy_obj *floppy = ide_floppy_g(bdev->bd_disk); |
| 1187 | ide_drive_t *drive = floppy->drive; |
| 1188 | |
| 1189 | geo->heads = drive->bios_head; |
| 1190 | geo->sectors = drive->bios_sect; |
| 1191 | geo->cylinders = (u16)drive->bios_cyl; /* truncate */ |
| 1192 | return 0; |
| 1193 | } |
| 1194 | |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1195 | static int ide_floppy_lockdoor(ide_drive_t *drive, struct ide_atapi_pc *pc, |
| 1196 | unsigned long arg, unsigned int cmd) |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1197 | { |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1198 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 1199 | |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1200 | if (floppy->openers > 1) |
| 1201 | return -EBUSY; |
| 1202 | |
| 1203 | /* The IOMEGA Clik! Drive doesn't support this command - |
| 1204 | * no room for an eject mechanism */ |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1205 | if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) { |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1206 | int prevent = arg ? 1 : 0; |
| 1207 | |
| 1208 | if (cmd == CDROMEJECT) |
| 1209 | prevent = 0; |
| 1210 | |
| 1211 | idefloppy_create_prevent_cmd(pc, prevent); |
| 1212 | (void) idefloppy_queue_pc_tail(floppy->drive, pc); |
| 1213 | } |
| 1214 | |
| 1215 | if (cmd == CDROMEJECT) { |
| 1216 | idefloppy_create_start_stop_cmd(pc, 2); |
| 1217 | (void) idefloppy_queue_pc_tail(floppy->drive, pc); |
| 1218 | } |
| 1219 | |
| 1220 | return 0; |
| 1221 | } |
| 1222 | |
Bartlomiej Zolnierkiewicz | d56c99e | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 1223 | static int ide_floppy_format_unit(ide_drive_t *drive, int __user *arg) |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1224 | { |
Bartlomiej Zolnierkiewicz | d56c99e | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 1225 | idefloppy_floppy_t *floppy = drive->driver_data; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 1226 | struct ide_atapi_pc pc; |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1227 | int blocks, length, flags, err = 0; |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1228 | |
| 1229 | if (floppy->openers > 1) { |
| 1230 | /* Don't format if someone is using the disk */ |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1231 | drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS; |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1232 | return -EBUSY; |
| 1233 | } |
| 1234 | |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1235 | drive->atapi_flags |= IDE_AFLAG_FORMAT_IN_PROGRESS; |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1236 | |
| 1237 | /* |
| 1238 | * Send ATAPI_FORMAT_UNIT to the drive. |
| 1239 | * |
| 1240 | * Userland gives us the following structure: |
| 1241 | * |
| 1242 | * struct idefloppy_format_command { |
| 1243 | * int nblocks; |
| 1244 | * int blocksize; |
| 1245 | * int flags; |
| 1246 | * } ; |
| 1247 | * |
| 1248 | * flags is a bitmask, currently, the only defined flag is: |
| 1249 | * |
| 1250 | * 0x01 - verify media after format. |
| 1251 | */ |
| 1252 | if (get_user(blocks, arg) || |
| 1253 | get_user(length, arg+1) || |
| 1254 | get_user(flags, arg+2)) { |
| 1255 | err = -EFAULT; |
| 1256 | goto out; |
| 1257 | } |
| 1258 | |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1259 | (void) idefloppy_get_sfrp_bit(drive); |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1260 | idefloppy_create_format_unit_cmd(&pc, blocks, length, flags); |
| 1261 | |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1262 | if (idefloppy_queue_pc_tail(drive, &pc)) |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1263 | err = -EIO; |
| 1264 | |
| 1265 | out: |
| 1266 | if (err) |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1267 | drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS; |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1268 | return err; |
| 1269 | } |
| 1270 | |
Bartlomiej Zolnierkiewicz | d56c99e | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 1271 | static int ide_floppy_format_ioctl(ide_drive_t *drive, struct file *file, |
| 1272 | unsigned int cmd, void __user *argp) |
| 1273 | { |
| 1274 | switch (cmd) { |
| 1275 | case IDEFLOPPY_IOCTL_FORMAT_SUPPORTED: |
| 1276 | return 0; |
| 1277 | case IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY: |
| 1278 | return ide_floppy_get_format_capacities(drive, argp); |
| 1279 | case IDEFLOPPY_IOCTL_FORMAT_START: |
| 1280 | if (!(file->f_mode & 2)) |
| 1281 | return -EPERM; |
| 1282 | return ide_floppy_format_unit(drive, (int __user *)argp); |
| 1283 | case IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS: |
| 1284 | return ide_floppy_get_format_progress(drive, argp); |
| 1285 | default: |
| 1286 | return -ENOTTY; |
| 1287 | } |
| 1288 | } |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1289 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1290 | static int idefloppy_ioctl(struct inode *inode, struct file *file, |
| 1291 | unsigned int cmd, unsigned long arg) |
| 1292 | { |
| 1293 | struct block_device *bdev = inode->i_bdev; |
| 1294 | struct ide_floppy_obj *floppy = ide_floppy_g(bdev->bd_disk); |
| 1295 | ide_drive_t *drive = floppy->drive; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 1296 | struct ide_atapi_pc pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1297 | void __user *argp = (void __user *)arg; |
Ondrej Zary | 07203f6 | 2005-11-10 00:25:15 +0100 | [diff] [blame] | 1298 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1299 | |
Bartlomiej Zolnierkiewicz | d56c99e | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 1300 | if (cmd == CDROMEJECT || cmd == CDROM_LOCKDOOR) |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1301 | return ide_floppy_lockdoor(drive, &pc, arg, cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1302 | |
Bartlomiej Zolnierkiewicz | d56c99e | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 1303 | err = ide_floppy_format_ioctl(drive, file, cmd, argp); |
| 1304 | if (err != -ENOTTY) |
| 1305 | return err; |
Bartlomiej Zolnierkiewicz | 89636af | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 1306 | |
| 1307 | /* |
| 1308 | * skip SCSI_IOCTL_SEND_COMMAND (deprecated) |
| 1309 | * and CDROM_SEND_PACKET (legacy) ioctls |
| 1310 | */ |
| 1311 | if (cmd != CDROM_SEND_PACKET && cmd != SCSI_IOCTL_SEND_COMMAND) |
| 1312 | err = scsi_cmd_ioctl(file, bdev->bd_disk->queue, |
| 1313 | bdev->bd_disk, cmd, argp); |
Bartlomiej Zolnierkiewicz | 89636af | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 1314 | |
| 1315 | if (err == -ENOTTY) |
| 1316 | err = generic_ide_ioctl(drive, file, bdev, cmd, arg); |
| 1317 | |
| 1318 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1319 | } |
| 1320 | |
| 1321 | static int idefloppy_media_changed(struct gendisk *disk) |
| 1322 | { |
| 1323 | struct ide_floppy_obj *floppy = ide_floppy_g(disk); |
| 1324 | ide_drive_t *drive = floppy->drive; |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1325 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1326 | |
| 1327 | /* do not scan partitions twice if this is a removable device */ |
| 1328 | if (drive->attach) { |
| 1329 | drive->attach = 0; |
| 1330 | return 0; |
| 1331 | } |
Borislav Petkov | ea68d27 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 1332 | ret = !!(drive->atapi_flags & IDE_AFLAG_MEDIA_CHANGED); |
| 1333 | drive->atapi_flags &= ~IDE_AFLAG_MEDIA_CHANGED; |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1334 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1335 | } |
| 1336 | |
| 1337 | static int idefloppy_revalidate_disk(struct gendisk *disk) |
| 1338 | { |
| 1339 | struct ide_floppy_obj *floppy = ide_floppy_g(disk); |
| 1340 | set_capacity(disk, idefloppy_capacity(floppy->drive)); |
| 1341 | return 0; |
| 1342 | } |
| 1343 | |
| 1344 | static struct block_device_operations idefloppy_ops = { |
Paolo Ciarrocchi | 52d3ccf | 2008-04-26 17:36:41 +0200 | [diff] [blame] | 1345 | .owner = THIS_MODULE, |
| 1346 | .open = idefloppy_open, |
| 1347 | .release = idefloppy_release, |
| 1348 | .ioctl = idefloppy_ioctl, |
| 1349 | .getgeo = idefloppy_getgeo, |
| 1350 | .media_changed = idefloppy_media_changed, |
| 1351 | .revalidate_disk = idefloppy_revalidate_disk |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1352 | }; |
| 1353 | |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 1354 | static int ide_floppy_probe(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1355 | { |
| 1356 | idefloppy_floppy_t *floppy; |
| 1357 | struct gendisk *g; |
| 1358 | |
| 1359 | if (!strstr("ide-floppy", drive->driver_req)) |
| 1360 | goto failed; |
Bartlomiej Zolnierkiewicz | 2a92466 | 2008-10-10 22:39:24 +0200 | [diff] [blame] | 1361 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1362 | if (drive->media != ide_floppy) |
| 1363 | goto failed; |
Bartlomiej Zolnierkiewicz | 2a92466 | 2008-10-10 22:39:24 +0200 | [diff] [blame] | 1364 | |
Bartlomiej Zolnierkiewicz | 51509ee | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 1365 | if (!ide_check_atapi_device(drive, DRV_NAME)) { |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1366 | printk(KERN_ERR "ide-floppy: %s: not supported by this version" |
| 1367 | " of ide-floppy\n", drive->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1368 | goto failed; |
| 1369 | } |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1370 | floppy = kzalloc(sizeof(idefloppy_floppy_t), GFP_KERNEL); |
| 1371 | if (!floppy) { |
| 1372 | printk(KERN_ERR "ide-floppy: %s: Can't allocate a floppy" |
| 1373 | " structure\n", drive->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1374 | goto failed; |
| 1375 | } |
| 1376 | |
| 1377 | g = alloc_disk(1 << PARTN_BITS); |
| 1378 | if (!g) |
| 1379 | goto out_free_floppy; |
| 1380 | |
| 1381 | ide_init_disk(g, drive); |
| 1382 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1383 | kref_init(&floppy->kref); |
| 1384 | |
| 1385 | floppy->drive = drive; |
| 1386 | floppy->driver = &idefloppy_driver; |
| 1387 | floppy->disk = g; |
| 1388 | |
| 1389 | g->private_data = &floppy->driver; |
| 1390 | |
| 1391 | drive->driver_data = floppy; |
| 1392 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1393 | idefloppy_setup(drive, floppy); |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1394 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1395 | g->minors = 1 << PARTN_BITS; |
| 1396 | g->driverfs_dev = &drive->gendev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1397 | g->flags = drive->removable ? GENHD_FL_REMOVABLE : 0; |
| 1398 | g->fops = &idefloppy_ops; |
| 1399 | drive->attach = 1; |
| 1400 | add_disk(g); |
| 1401 | return 0; |
| 1402 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1403 | out_free_floppy: |
| 1404 | kfree(floppy); |
| 1405 | failed: |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1406 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1407 | } |
| 1408 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1409 | static void __exit idefloppy_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1410 | { |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1411 | driver_unregister(&idefloppy_driver.gen_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1412 | } |
| 1413 | |
Bartlomiej Zolnierkiewicz | 17514e8 | 2005-11-19 22:24:35 +0100 | [diff] [blame] | 1414 | static int __init idefloppy_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1415 | { |
| 1416 | printk("ide-floppy driver " IDEFLOPPY_VERSION "\n"); |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1417 | return driver_register(&idefloppy_driver.gen_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1418 | } |
| 1419 | |
Kay Sievers | 263756e | 2005-12-12 18:03:44 +0100 | [diff] [blame] | 1420 | MODULE_ALIAS("ide:*m-floppy*"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1421 | module_init(idefloppy_init); |
| 1422 | module_exit(idefloppy_exit); |
| 1423 | MODULE_LICENSE("GPL"); |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1424 | MODULE_DESCRIPTION("ATAPI FLOPPY Driver"); |
| 1425 | |