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 | |
Borislav Petkov | fc6c5bc | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 18 | #define IDEFLOPPY_VERSION "1.00" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | #include <linux/module.h> |
| 21 | #include <linux/types.h> |
| 22 | #include <linux/string.h> |
| 23 | #include <linux/kernel.h> |
| 24 | #include <linux/delay.h> |
| 25 | #include <linux/timer.h> |
| 26 | #include <linux/mm.h> |
| 27 | #include <linux/interrupt.h> |
| 28 | #include <linux/major.h> |
| 29 | #include <linux/errno.h> |
| 30 | #include <linux/genhd.h> |
| 31 | #include <linux/slab.h> |
| 32 | #include <linux/cdrom.h> |
| 33 | #include <linux/ide.h> |
| 34 | #include <linux/bitops.h> |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 35 | #include <linux/mutex.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | |
Bartlomiej Zolnierkiewicz | 89636af | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 37 | #include <scsi/scsi_ioctl.h> |
| 38 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | #include <asm/byteorder.h> |
Borislav Petkov | 7e8b163 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 40 | #include <linux/irq.h> |
| 41 | #include <linux/uaccess.h> |
| 42 | #include <linux/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | #include <asm/unaligned.h> |
| 44 | |
Borislav Petkov | f373bd8 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 45 | /* define to see debug info */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | #define IDEFLOPPY_DEBUG_LOG 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | |
| 48 | /* #define IDEFLOPPY_DEBUG(fmt, args...) printk(KERN_INFO fmt, ## args) */ |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 49 | #define IDEFLOPPY_DEBUG(fmt, args...) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
| 51 | #if IDEFLOPPY_DEBUG_LOG |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 52 | #define debug_log(fmt, args...) \ |
| 53 | printk(KERN_INFO "ide-floppy: " fmt, ## args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | #else |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 55 | #define debug_log(fmt, args...) do {} while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | #endif |
| 57 | |
| 58 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 59 | /* Some drives require a longer irq timeout. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | #define IDEFLOPPY_WAIT_CMD (5 * WAIT_CMD) |
| 61 | |
| 62 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 63 | * After each failed packet command we issue a request sense command and retry |
| 64 | * the packet command IDEFLOPPY_MAX_PC_RETRIES times. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | */ |
| 66 | #define IDEFLOPPY_MAX_PC_RETRIES 3 |
| 67 | |
| 68 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 69 | * With each packet command, we allocate a buffer of IDEFLOPPY_PC_BUFFER_SIZE |
| 70 | * bytes. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | */ |
| 72 | #define IDEFLOPPY_PC_BUFFER_SIZE 256 |
| 73 | |
| 74 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 75 | * In various places in the driver, we need to allocate storage for packet |
| 76 | * commands and requests, which will remain valid while we leave the driver to |
| 77 | * wait for an interrupt or a timeout event. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | */ |
| 79 | #define IDEFLOPPY_PC_STACK (10 + IDEFLOPPY_MAX_PC_RETRIES) |
| 80 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 81 | /* format capacities descriptor codes */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | #define CAPACITY_INVALID 0x00 |
| 83 | #define CAPACITY_UNFORMATTED 0x01 |
| 84 | #define CAPACITY_CURRENT 0x02 |
| 85 | #define CAPACITY_NO_CARTRIDGE 0x03 |
| 86 | |
| 87 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 88 | * Most of our global data which we need to save even as we leave the driver |
| 89 | * due to an interrupt or a timer event is stored in a variable of type |
| 90 | * idefloppy_floppy_t, defined below. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | */ |
| 92 | typedef struct ide_floppy_obj { |
| 93 | ide_drive_t *drive; |
| 94 | ide_driver_t *driver; |
| 95 | struct gendisk *disk; |
| 96 | struct kref kref; |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 97 | unsigned int openers; /* protected by BKL for now */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | |
| 99 | /* Current packet command */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 100 | struct ide_atapi_pc *pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | /* Last failed packet command */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 102 | struct ide_atapi_pc *failed_pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | /* Packet command stack */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 104 | struct ide_atapi_pc pc_stack[IDEFLOPPY_PC_STACK]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | /* Next free packet command storage space */ |
| 106 | int pc_stack_index; |
| 107 | struct request rq_stack[IDEFLOPPY_PC_STACK]; |
| 108 | /* We implement a circular array */ |
| 109 | int rq_stack_index; |
| 110 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 111 | /* Last error information */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | u8 sense_key, asc, ascq; |
| 113 | /* delay this long before sending packet command */ |
| 114 | u8 ticks; |
| 115 | int progress_indication; |
| 116 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 117 | /* Device information */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | /* Current format */ |
| 119 | int blocks, block_size, bs_factor; |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 120 | /* Last format capacity descriptor */ |
| 121 | u8 cap_desc[8]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | /* Copy of the flexible disk page */ |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 123 | u8 flexible_disk_page[32]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | /* Write protect */ |
| 125 | int wp; |
| 126 | /* Supports format progress report */ |
| 127 | int srfp; |
| 128 | /* Status/Action flags */ |
| 129 | unsigned long flags; |
| 130 | } idefloppy_floppy_t; |
| 131 | |
Bartlomiej Zolnierkiewicz | c40d3d3 | 2005-08-18 22:09:21 +0200 | [diff] [blame] | 132 | #define IDEFLOPPY_TICKS_DELAY HZ/20 /* default delay for ZIP 100 (50ms) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 134 | /* Floppy flag bits values. */ |
| 135 | enum { |
| 136 | /* DRQ interrupt device */ |
| 137 | IDEFLOPPY_FLAG_DRQ_INTERRUPT = (1 << 0), |
| 138 | /* Media may have changed */ |
| 139 | IDEFLOPPY_FLAG_MEDIA_CHANGED = (1 << 1), |
| 140 | /* Format in progress */ |
| 141 | IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS = (1 << 2), |
| 142 | /* Avoid commands not supported in Clik drive */ |
| 143 | IDEFLOPPY_FLAG_CLIK_DRIVE = (1 << 3), |
| 144 | /* Requires BH algorithm for packets */ |
| 145 | IDEFLOPPY_FLAG_ZIP_DRIVE = (1 << 4), |
| 146 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 148 | /* Defines for the MODE SENSE command */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | #define MODE_SENSE_CURRENT 0x00 |
| 150 | #define MODE_SENSE_CHANGEABLE 0x01 |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 151 | #define MODE_SENSE_DEFAULT 0x02 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | #define MODE_SENSE_SAVED 0x03 |
| 153 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 154 | /* IOCTLs used in low-level formatting. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | #define IDEFLOPPY_IOCTL_FORMAT_SUPPORTED 0x4600 |
| 156 | #define IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY 0x4601 |
| 157 | #define IDEFLOPPY_IOCTL_FORMAT_START 0x4602 |
| 158 | #define IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS 0x4603 |
| 159 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 160 | /* 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] | 161 | #define IDEFLOPPY_ERROR_GENERAL 101 |
| 162 | |
| 163 | /* |
Borislav Petkov | 948391d | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 164 | * Pages of the SELECT SENSE / MODE SENSE packet commands. |
| 165 | * See SFF-8070i spec. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | */ |
| 167 | #define IDEFLOPPY_CAPABILITIES_PAGE 0x1b |
| 168 | #define IDEFLOPPY_FLEXIBLE_DISK_PAGE 0x05 |
| 169 | |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 170 | static DEFINE_MUTEX(idefloppy_ref_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | |
| 172 | #define to_ide_floppy(obj) container_of(obj, struct ide_floppy_obj, kref) |
| 173 | |
| 174 | #define ide_floppy_g(disk) \ |
| 175 | container_of((disk)->private_data, struct ide_floppy_obj, driver) |
| 176 | |
| 177 | static struct ide_floppy_obj *ide_floppy_get(struct gendisk *disk) |
| 178 | { |
| 179 | struct ide_floppy_obj *floppy = NULL; |
| 180 | |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 181 | mutex_lock(&idefloppy_ref_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | floppy = ide_floppy_g(disk); |
| 183 | if (floppy) |
| 184 | kref_get(&floppy->kref); |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 185 | mutex_unlock(&idefloppy_ref_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | return floppy; |
| 187 | } |
| 188 | |
Borislav Petkov | 9a24b63 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 189 | static void idefloppy_cleanup_obj(struct kref *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | |
| 191 | static void ide_floppy_put(struct ide_floppy_obj *floppy) |
| 192 | { |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 193 | mutex_lock(&idefloppy_ref_mutex); |
Borislav Petkov | 9a24b63 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 194 | kref_put(&floppy->kref, idefloppy_cleanup_obj); |
Arjan van de Ven | cf8b897 | 2006-03-23 03:00:45 -0800 | [diff] [blame] | 195 | mutex_unlock(&idefloppy_ref_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | } |
| 197 | |
| 198 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 199 | * Used to finish servicing a request. For read/write requests, we will call |
| 200 | * ide_end_request to pass to the next buffer. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | */ |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 202 | 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] | 203 | { |
| 204 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 205 | struct request *rq = HWGROUP(drive)->rq; |
| 206 | int error; |
| 207 | |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 208 | debug_log("Reached %s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | |
| 210 | switch (uptodate) { |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 211 | case 0: error = IDEFLOPPY_ERROR_GENERAL; break; |
| 212 | case 1: error = 0; break; |
| 213 | default: error = uptodate; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | } |
| 215 | if (error) |
| 216 | floppy->failed_pc = NULL; |
| 217 | /* Why does this happen? */ |
| 218 | if (!rq) |
| 219 | return 0; |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 220 | if (!blk_special_request(rq)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | /* our real local end request function */ |
| 222 | ide_end_request(drive, uptodate, nsecs); |
| 223 | return 0; |
| 224 | } |
| 225 | rq->errors = error; |
| 226 | /* fixme: need to move this local also */ |
| 227 | ide_end_drive_cmd(drive, 0, 0); |
| 228 | return 0; |
| 229 | } |
| 230 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 231 | 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] | 232 | unsigned int bcount, int direction) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | { |
Bartlomiej Zolnierkiewicz | 9567b34 | 2008-04-28 23:44:36 +0200 | [diff] [blame] | 234 | ide_hwif_t *hwif = drive->hwif; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | struct request *rq = pc->rq; |
NeilBrown | 5705f70 | 2007-09-25 12:35:59 +0200 | [diff] [blame] | 236 | struct req_iterator iter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | struct bio_vec *bvec; |
| 238 | unsigned long flags; |
NeilBrown | 5705f70 | 2007-09-25 12:35:59 +0200 | [diff] [blame] | 239 | int count, done = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | char *data; |
| 241 | |
NeilBrown | 5705f70 | 2007-09-25 12:35:59 +0200 | [diff] [blame] | 242 | rq_for_each_segment(bvec, rq, iter) { |
Jens Axboe | 6c92e69 | 2007-08-16 13:43:12 +0200 | [diff] [blame] | 243 | if (!bcount) |
| 244 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | |
Jens Axboe | 6c92e69 | 2007-08-16 13:43:12 +0200 | [diff] [blame] | 246 | count = min(bvec->bv_len, bcount); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | |
Jens Axboe | 6c92e69 | 2007-08-16 13:43:12 +0200 | [diff] [blame] | 248 | data = bvec_kmap_irq(bvec, &flags); |
Borislav Petkov | 32925e1 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 249 | if (direction) |
Bartlomiej Zolnierkiewicz | 9567b34 | 2008-04-28 23:44:36 +0200 | [diff] [blame] | 250 | hwif->output_data(drive, NULL, data, count); |
Borislav Petkov | 32925e1 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 251 | else |
Bartlomiej Zolnierkiewicz | 9567b34 | 2008-04-28 23:44:36 +0200 | [diff] [blame] | 252 | hwif->input_data(drive, NULL, data, count); |
Jens Axboe | 6c92e69 | 2007-08-16 13:43:12 +0200 | [diff] [blame] | 253 | bvec_kunmap_irq(data, &flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | |
Jens Axboe | 6c92e69 | 2007-08-16 13:43:12 +0200 | [diff] [blame] | 255 | bcount -= count; |
| 256 | pc->b_count += count; |
| 257 | done += count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | } |
| 259 | |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 260 | idefloppy_end_request(drive, 1, done >> 9); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | |
| 262 | if (bcount) { |
Borislav Petkov | 32925e1 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 263 | printk(KERN_ERR "%s: leftover data in %s, bcount == %d\n", |
| 264 | drive->name, __func__, bcount); |
Bartlomiej Zolnierkiewicz | 9f87abe | 2008-04-28 23:44:41 +0200 | [diff] [blame] | 265 | ide_pad_transfer(drive, direction, bcount); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | } |
| 267 | } |
| 268 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 269 | static void idefloppy_update_buffers(ide_drive_t *drive, |
| 270 | struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | { |
| 272 | struct request *rq = pc->rq; |
| 273 | struct bio *bio = rq->bio; |
| 274 | |
| 275 | while ((bio = rq->bio) != NULL) |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 276 | idefloppy_end_request(drive, 1, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | } |
| 278 | |
| 279 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 280 | * Generate a new packet command request in front of the request queue, before |
| 281 | * the current request so that it will be processed immediately, on the next |
| 282 | * pass through the driver. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 284 | 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] | 285 | struct request *rq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | { |
| 287 | struct ide_floppy_obj *floppy = drive->driver_data; |
| 288 | |
FUJITA Tomonori | 124cafc | 2008-07-15 21:21:44 +0200 | [diff] [blame] | 289 | blk_rq_init(NULL, rq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | rq->buffer = (char *) pc; |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 291 | rq->cmd_type = REQ_TYPE_SPECIAL; |
Bartlomiej Zolnierkiewicz | e8a96aa | 2008-07-15 21:21:41 +0200 | [diff] [blame] | 292 | rq->cmd_flags |= REQ_PREEMPT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | rq->rq_disk = floppy->disk; |
FUJITA Tomonori | 63f5abb | 2008-07-15 21:21:51 +0200 | [diff] [blame] | 294 | ide_do_drive_cmd(drive, rq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | } |
| 296 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 297 | static struct ide_atapi_pc *idefloppy_next_pc_storage(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | { |
| 299 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 300 | |
| 301 | if (floppy->pc_stack_index == IDEFLOPPY_PC_STACK) |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 302 | floppy->pc_stack_index = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | return (&floppy->pc_stack[floppy->pc_stack_index++]); |
| 304 | } |
| 305 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 306 | static struct request *idefloppy_next_rq_storage(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | { |
| 308 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 309 | |
| 310 | if (floppy->rq_stack_index == IDEFLOPPY_PC_STACK) |
| 311 | floppy->rq_stack_index = 0; |
| 312 | return (&floppy->rq_stack[floppy->rq_stack_index++]); |
| 313 | } |
| 314 | |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 315 | static void ide_floppy_callback(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | { |
| 317 | idefloppy_floppy_t *floppy = drive->driver_data; |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 318 | struct ide_atapi_pc *pc = floppy->pc; |
| 319 | int uptodate = pc->error ? 0 : 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 321 | debug_log("Reached %s\n", __func__); |
| 322 | |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 323 | if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 || |
| 324 | (pc->rq && blk_pc_request(pc->rq))) |
| 325 | uptodate = 1; /* FIXME */ |
| 326 | else if (pc->c[0] == GPCMD_REQUEST_SENSE) { |
| 327 | u8 *buf = floppy->pc->buf; |
Borislav Petkov | a6ff2d3 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 328 | |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 329 | if (!pc->error) { |
| 330 | floppy->sense_key = buf[2] & 0x0F; |
| 331 | floppy->asc = buf[12]; |
| 332 | floppy->ascq = buf[13]; |
| 333 | floppy->progress_indication = buf[15] & 0x80 ? |
| 334 | (u16)get_unaligned((u16 *)&buf[16]) : 0x10000; |
| 335 | |
| 336 | if (floppy->failed_pc) |
| 337 | debug_log("pc = %x, ", floppy->failed_pc->c[0]); |
| 338 | |
Borislav Petkov | a6ff2d3 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 339 | debug_log("sense key = %x, asc = %x, ascq = %x\n", |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 340 | floppy->sense_key, floppy->asc, floppy->ascq); |
| 341 | } else |
| 342 | printk(KERN_ERR "Error in REQUEST SENSE itself - " |
| 343 | "Aborting request!\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | |
Borislav Petkov | 81f4938 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 346 | idefloppy_end_request(drive, uptodate, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | } |
| 348 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 349 | static void idefloppy_init_pc(struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | { |
| 351 | memset(pc->c, 0, 12); |
| 352 | pc->retries = 0; |
| 353 | pc->flags = 0; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 354 | pc->req_xfer = 0; |
| 355 | pc->buf = pc->pc_buf; |
| 356 | pc->buf_size = IDEFLOPPY_PC_BUFFER_SIZE; |
Bartlomiej Zolnierkiewicz | 1b06e92 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 357 | pc->callback = ide_floppy_callback; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | } |
| 359 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 360 | static void idefloppy_create_request_sense_cmd(struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | { |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 362 | idefloppy_init_pc(pc); |
| 363 | pc->c[0] = GPCMD_REQUEST_SENSE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | pc->c[4] = 255; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 365 | pc->req_xfer = 18; |
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 | * Called when an error was detected during the last packet command. We queue a |
| 370 | * request sense packet command in the head of the request list. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | */ |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 372 | static void idefloppy_retry_pc(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | { |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 374 | struct ide_atapi_pc *pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | struct request *rq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | |
Bartlomiej Zolnierkiewicz | 64a57fe | 2008-02-06 02:57:51 +0100 | [diff] [blame] | 377 | (void)ide_read_error(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | pc = idefloppy_next_pc_storage(drive); |
| 379 | rq = idefloppy_next_rq_storage(drive); |
| 380 | idefloppy_create_request_sense_cmd(pc); |
| 381 | idefloppy_queue_pc_head(drive, pc, rq); |
| 382 | } |
| 383 | |
Borislav Petkov | 0eea645 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 384 | /* The usual interrupt handler called during a packet command. */ |
Paolo Ciarrocchi | 52d3ccf | 2008-04-26 17:36:41 +0200 | [diff] [blame] | 385 | static ide_startstop_t idefloppy_pc_intr(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | { |
| 387 | idefloppy_floppy_t *floppy = drive->driver_data; |
Bartlomiej Zolnierkiewicz | 790d123 | 2008-01-25 22:17:12 +0100 | [diff] [blame] | 388 | ide_hwif_t *hwif = drive->hwif; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 389 | struct ide_atapi_pc *pc = floppy->pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | struct request *rq = pc->rq; |
Borislav Petkov | 0eea645 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 391 | xfer_func_t *xferfunc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | unsigned int temp; |
Borislav Petkov | d30a7fb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 393 | int dma_error = 0; |
Bartlomiej Zolnierkiewicz | 790d123 | 2008-01-25 22:17:12 +0100 | [diff] [blame] | 394 | u16 bcount; |
Bartlomiej Zolnierkiewicz | 8e7657a | 2008-01-25 22:17:12 +0100 | [diff] [blame] | 395 | u8 stat, ireason; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 397 | debug_log("Reached %s interrupt handler\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 399 | if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 400 | dma_error = hwif->dma_ops->dma_end(drive); |
Borislav Petkov | d30a7fb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 401 | if (dma_error) { |
| 402 | printk(KERN_ERR "%s: DMA %s error\n", drive->name, |
| 403 | rq_data_dir(rq) ? "write" : "read"); |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 404 | pc->flags |= PC_FLAG_DMA_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | } else { |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 406 | pc->xferred = pc->req_xfer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | idefloppy_update_buffers(drive, pc); |
| 408 | } |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 409 | debug_log("DMA finished\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | } |
| 411 | |
| 412 | /* Clear the interrupt */ |
Bartlomiej Zolnierkiewicz | c47137a | 2008-02-06 02:57:51 +0100 | [diff] [blame] | 413 | stat = ide_read_status(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 415 | /* No more interrupts */ |
| 416 | if ((stat & DRQ_STAT) == 0) { |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 417 | debug_log("Packet command completed, %d bytes transferred\n", |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 418 | pc->xferred); |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 419 | pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | |
Ingo Molnar | 366c7f5 | 2006-07-03 00:25:25 -0700 | [diff] [blame] | 421 | local_irq_enable_in_hardirq(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 423 | if ((stat & ERR_STAT) || (pc->flags & PC_FLAG_DMA_ERROR)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | /* Error detected */ |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 425 | debug_log("%s: I/O error\n", drive->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | rq->errors++; |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 427 | if (pc->c[0] == GPCMD_REQUEST_SENSE) { |
Bartlomiej Zolnierkiewicz | 568ca92 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 428 | printk(KERN_ERR "%s: I/O error in request sense" |
| 429 | " command\n", drive->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | return ide_do_reset(drive); |
| 431 | } |
| 432 | /* Retry operation */ |
| 433 | idefloppy_retry_pc(drive); |
| 434 | /* queued, but not started */ |
| 435 | return ide_stopped; |
| 436 | } |
| 437 | pc->error = 0; |
| 438 | if (floppy->failed_pc == pc) |
| 439 | floppy->failed_pc = NULL; |
| 440 | /* Command finished - Call the callback function */ |
Bartlomiej Zolnierkiewicz | 1b06e92 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 441 | pc->callback(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | return ide_stopped; |
| 443 | } |
| 444 | |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 445 | if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { |
| 446 | pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; |
Bartlomiej Zolnierkiewicz | 568ca92 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 447 | printk(KERN_ERR "%s: The device wants to issue more interrupts " |
| 448 | "in DMA mode\n", drive->name); |
Bartlomiej Zolnierkiewicz | 7469aaf | 2007-02-17 02:40:26 +0100 | [diff] [blame] | 449 | ide_dma_off(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | return ide_do_reset(drive); |
| 451 | } |
| 452 | |
| 453 | /* Get the number of bytes to transfer */ |
Bartlomiej Zolnierkiewicz | 4c3032d | 2008-04-27 15:38:32 +0200 | [diff] [blame] | 454 | bcount = (hwif->INB(hwif->io_ports.lbah_addr) << 8) | |
| 455 | hwif->INB(hwif->io_ports.lbam_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | /* on this interrupt */ |
Bartlomiej Zolnierkiewicz | 4c3032d | 2008-04-27 15:38:32 +0200 | [diff] [blame] | 457 | ireason = hwif->INB(hwif->io_ports.nsect_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | |
Bartlomiej Zolnierkiewicz | 8e7657a | 2008-01-25 22:17:12 +0100 | [diff] [blame] | 459 | if (ireason & CD) { |
Bartlomiej Zolnierkiewicz | 568ca92 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 460 | printk(KERN_ERR "%s: CoD != 0 in %s\n", drive->name, __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | return ide_do_reset(drive); |
| 462 | } |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 463 | if (((ireason & IO) == IO) == !!(pc->flags & PC_FLAG_WRITING)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | /* Hopefully, we will never get here */ |
Bartlomiej Zolnierkiewicz | 568ca92 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 465 | printk(KERN_ERR "%s: We wanted to %s, but the device wants us " |
| 466 | "to %s!\n", drive->name, |
| 467 | (ireason & IO) ? "Write" : "Read", |
Bartlomiej Zolnierkiewicz | 8e7657a | 2008-01-25 22:17:12 +0100 | [diff] [blame] | 468 | (ireason & IO) ? "Read" : "Write"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | return ide_do_reset(drive); |
| 470 | } |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 471 | if (!(pc->flags & PC_FLAG_WRITING)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 472 | /* Reading - Check that we have enough space */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 473 | temp = pc->xferred + bcount; |
| 474 | if (temp > pc->req_xfer) { |
| 475 | if (temp > pc->buf_size) { |
Bartlomiej Zolnierkiewicz | 568ca92 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 476 | printk(KERN_ERR "%s: The device wants to send " |
| 477 | "us more data than expected - " |
| 478 | "discarding data\n", |
| 479 | drive->name); |
Bartlomiej Zolnierkiewicz | 9f87abe | 2008-04-28 23:44:41 +0200 | [diff] [blame] | 480 | ide_pad_transfer(drive, 0, bcount); |
Borislav Petkov | 0078df2 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 481 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | ide_set_handler(drive, |
| 483 | &idefloppy_pc_intr, |
| 484 | IDEFLOPPY_WAIT_CMD, |
| 485 | NULL); |
| 486 | return ide_started; |
| 487 | } |
Bartlomiej Zolnierkiewicz | 568ca92 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 488 | debug_log("The device wants to send us more data than " |
| 489 | "expected - allowing transfer\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | } |
| 491 | } |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 492 | if (pc->flags & PC_FLAG_WRITING) |
Bartlomiej Zolnierkiewicz | 9567b34 | 2008-04-28 23:44:36 +0200 | [diff] [blame] | 493 | xferfunc = hwif->output_data; |
Borislav Petkov | 32925e1 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 494 | else |
Bartlomiej Zolnierkiewicz | 9567b34 | 2008-04-28 23:44:36 +0200 | [diff] [blame] | 495 | xferfunc = hwif->input_data; |
Borislav Petkov | 0eea645 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 496 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 497 | if (pc->buf) |
Bartlomiej Zolnierkiewicz | 9567b34 | 2008-04-28 23:44:36 +0200 | [diff] [blame] | 498 | xferfunc(drive, NULL, pc->cur_pos, bcount); |
Borislav Petkov | 0eea645 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 499 | else |
Borislav Petkov | 32925e1 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 500 | ide_floppy_io_buffers(drive, pc, bcount, |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 501 | !!(pc->flags & PC_FLAG_WRITING)); |
Borislav Petkov | 0eea645 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 502 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | /* Update the current position */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 504 | pc->xferred += bcount; |
| 505 | pc->cur_pos += bcount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | |
Borislav Petkov | 32925e1 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 507 | /* And set the interrupt handler again */ |
| 508 | ide_set_handler(drive, &idefloppy_pc_intr, IDEFLOPPY_WAIT_CMD, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | return ide_started; |
| 510 | } |
| 511 | |
| 512 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 513 | * What we have here is a classic case of a top half / bottom half interrupt |
| 514 | * service routine. In interrupt mode, the device sends an interrupt to signal |
| 515 | * that it is ready to receive a packet. However, we need to delay about 2-3 |
| 516 | * ticks before issuing the packet or we gets in trouble. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | * |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 518 | * So, follow carefully. transfer_pc1 is called as an interrupt (or directly). |
| 519 | * In either case, when the device says it's ready for a packet, we schedule |
| 520 | * the packet transfer to occur about 2-3 ticks later in transfer_pc2. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | */ |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 522 | static int idefloppy_transfer_pc2(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | { |
| 524 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 525 | |
| 526 | /* Send the actual packet */ |
Bartlomiej Zolnierkiewicz | 9567b34 | 2008-04-28 23:44:36 +0200 | [diff] [blame] | 527 | drive->hwif->output_data(drive, NULL, floppy->pc->c, 12); |
| 528 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | /* Timeout for the packet command */ |
| 530 | return IDEFLOPPY_WAIT_CMD; |
| 531 | } |
| 532 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 533 | static ide_startstop_t idefloppy_transfer_pc1(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | { |
| 535 | idefloppy_floppy_t *floppy = drive->driver_data; |
Bartlomiej Zolnierkiewicz | 6ffb6641 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 536 | struct ide_atapi_pc *pc = floppy->pc; |
Bartlomiej Zolnierkiewicz | 0b2eea4 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 537 | ide_expiry_t *expiry; |
| 538 | unsigned int timeout; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 540 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | * The following delay solves a problem with ATAPI Zip 100 drives |
| 542 | * where the Busy flag was apparently being deasserted before the |
| 543 | * unit was ready to receive data. This was happening on a |
| 544 | * 1200 MHz Athlon system. 10/26/01 25msec is too short, |
| 545 | * 40 and 50msec work well. idefloppy_pc_intr will not be actually |
| 546 | * used until after the packet is moved in about 50 msec. |
| 547 | */ |
Bartlomiej Zolnierkiewicz | 5d41893 | 2008-07-15 21:21:57 +0200 | [diff] [blame] | 548 | if (pc->flags & PC_FLAG_ZIP_DRIVE) { |
Bartlomiej Zolnierkiewicz | 0b2eea4 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 549 | timeout = floppy->ticks; |
| 550 | expiry = &idefloppy_transfer_pc2; |
| 551 | } else { |
| 552 | timeout = IDEFLOPPY_WAIT_CMD; |
| 553 | expiry = NULL; |
| 554 | } |
Borislav Petkov | 0078df2 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 555 | |
Bartlomiej Zolnierkiewicz | 594c16d | 2008-07-15 21:21:58 +0200 | [diff] [blame^] | 556 | return ide_transfer_pc(drive, pc, idefloppy_pc_intr, timeout, expiry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | } |
| 558 | |
Borislav Petkov | d652c13 | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 559 | static void ide_floppy_report_error(idefloppy_floppy_t *floppy, |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 560 | struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | { |
Borislav Petkov | d652c13 | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 562 | /* supress error messages resulting from Medium not present */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | if (floppy->sense_key == 0x02 && |
| 564 | floppy->asc == 0x3a && |
| 565 | floppy->ascq == 0x00) |
Borislav Petkov | d652c13 | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 566 | return; |
| 567 | |
| 568 | printk(KERN_ERR "ide-floppy: %s: I/O error, pc = %2x, key = %2x, " |
| 569 | "asc = %2x, ascq = %2x\n", |
| 570 | floppy->drive->name, pc->c[0], floppy->sense_key, |
| 571 | floppy->asc, floppy->ascq); |
| 572 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | } |
| 574 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 575 | static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive, |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 576 | struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 577 | { |
| 578 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 579 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | 790d123 | 2008-01-25 22:17:12 +0100 | [diff] [blame] | 580 | u16 bcount; |
Bartlomiej Zolnierkiewicz | e5f9f5a | 2008-01-25 22:17:12 +0100 | [diff] [blame] | 581 | u8 dma; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | if (floppy->failed_pc == NULL && |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 584 | pc->c[0] != GPCMD_REQUEST_SENSE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | floppy->failed_pc = pc; |
| 586 | /* Set the current packet command */ |
| 587 | floppy->pc = pc; |
| 588 | |
Borislav Petkov | 757ced8 | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 589 | if (pc->retries > IDEFLOPPY_MAX_PC_RETRIES) { |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 590 | if (!(pc->flags & PC_FLAG_SUPPRESS_ERROR)) |
Borislav Petkov | 757ced8 | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 591 | ide_floppy_report_error(floppy, pc); |
| 592 | /* Giving up */ |
| 593 | pc->error = IDEFLOPPY_ERROR_GENERAL; |
| 594 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | floppy->failed_pc = NULL; |
Bartlomiej Zolnierkiewicz | 1b06e92 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 596 | pc->callback(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | return ide_stopped; |
| 598 | } |
| 599 | |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 600 | debug_log("Retry number - %d\n", pc->retries); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | |
| 602 | pc->retries++; |
| 603 | /* We haven't transferred any data yet */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 604 | pc->xferred = 0; |
| 605 | pc->cur_pos = pc->buf; |
| 606 | bcount = min(pc->req_xfer, 63 * 1024); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 608 | if (pc->flags & PC_FLAG_DMA_ERROR) { |
| 609 | pc->flags &= ~PC_FLAG_DMA_ERROR; |
Bartlomiej Zolnierkiewicz | 7469aaf | 2007-02-17 02:40:26 +0100 | [diff] [blame] | 610 | ide_dma_off(drive); |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 611 | } |
Bartlomiej Zolnierkiewicz | e5f9f5a | 2008-01-25 22:17:12 +0100 | [diff] [blame] | 612 | dma = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | |
Bartlomiej Zolnierkiewicz | 5e33109 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 614 | if ((pc->flags & PC_FLAG_DMA_OK) && drive->using_dma) |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 615 | dma = !hwif->dma_ops->dma_setup(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | |
Bartlomiej Zolnierkiewicz | 6ffb6641 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 617 | if (!dma) |
| 618 | pc->flags &= ~PC_FLAG_DMA_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 619 | |
Bartlomiej Zolnierkiewicz | 6ffb6641 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 620 | ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_DEVICE, bcount, dma); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 622 | if (floppy->flags & IDEFLOPPY_FLAG_DRQ_INTERRUPT) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 623 | /* Issue the packet command */ |
| 624 | ide_execute_command(drive, WIN_PACKETCMD, |
Bartlomiej Zolnierkiewicz | 0b2eea4 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 625 | &idefloppy_transfer_pc1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 626 | IDEFLOPPY_WAIT_CMD, |
| 627 | NULL); |
| 628 | return ide_started; |
| 629 | } else { |
| 630 | /* Issue the packet command */ |
Bartlomiej Zolnierkiewicz | 1fc1425 | 2008-04-28 23:44:39 +0200 | [diff] [blame] | 631 | ide_execute_pkt_cmd(drive); |
Bartlomiej Zolnierkiewicz | 0b2eea4 | 2008-07-15 21:21:54 +0200 | [diff] [blame] | 632 | return idefloppy_transfer_pc1(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | } |
| 634 | } |
| 635 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 636 | 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] | 637 | { |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 638 | debug_log("creating prevent removal command, prevent = %d\n", prevent); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | |
| 640 | idefloppy_init_pc(pc); |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 641 | pc->c[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | pc->c[4] = prevent; |
| 643 | } |
| 644 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 645 | static void idefloppy_create_read_capacity_cmd(struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | { |
| 647 | idefloppy_init_pc(pc); |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 648 | pc->c[0] = GPCMD_READ_FORMAT_CAPACITIES; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 649 | pc->c[7] = 255; |
| 650 | pc->c[8] = 255; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 651 | pc->req_xfer = 255; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 652 | } |
| 653 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 654 | static void idefloppy_create_format_unit_cmd(struct ide_atapi_pc *pc, int b, |
| 655 | int l, int flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | { |
| 657 | idefloppy_init_pc(pc); |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 658 | pc->c[0] = GPCMD_FORMAT_UNIT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | pc->c[1] = 0x17; |
| 660 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 661 | memset(pc->buf, 0, 12); |
| 662 | pc->buf[1] = 0xA2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 663 | /* Default format list header, u8 1: FOV/DCRT/IMM bits set */ |
| 664 | |
| 665 | if (flags & 1) /* Verify bit on... */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 666 | pc->buf[1] ^= 0x20; /* ... turn off DCRT bit */ |
| 667 | pc->buf[3] = 8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 669 | put_unaligned(cpu_to_be32(b), (unsigned int *)(&pc->buf[4])); |
| 670 | put_unaligned(cpu_to_be32(l), (unsigned int *)(&pc->buf[8])); |
| 671 | pc->buf_size = 12; |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 672 | pc->flags |= PC_FLAG_WRITING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | } |
| 674 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 675 | /* A mode sense command is used to "sense" floppy parameters. */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 676 | static void idefloppy_create_mode_sense_cmd(struct ide_atapi_pc *pc, |
| 677 | u8 page_code, u8 type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | { |
Borislav Petkov | 24a5d70 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 679 | u16 length = 8; /* sizeof(Mode Parameter Header) = 8 Bytes */ |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 680 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | idefloppy_init_pc(pc); |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 682 | pc->c[0] = GPCMD_MODE_SENSE_10; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | pc->c[1] = 0; |
| 684 | pc->c[2] = page_code + (type << 6); |
| 685 | |
| 686 | switch (page_code) { |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 687 | case IDEFLOPPY_CAPABILITIES_PAGE: |
| 688 | length += 12; |
| 689 | break; |
| 690 | case IDEFLOPPY_FLEXIBLE_DISK_PAGE: |
| 691 | length += 32; |
| 692 | break; |
| 693 | default: |
| 694 | printk(KERN_ERR "ide-floppy: unsupported page code " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 695 | "in create_mode_sense_cmd\n"); |
| 696 | } |
Borislav Petkov | 8f62243 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 697 | put_unaligned(cpu_to_be16(length), (u16 *) &pc->c[7]); |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 698 | pc->req_xfer = length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 699 | } |
| 700 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 701 | 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] | 702 | { |
| 703 | idefloppy_init_pc(pc); |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 704 | pc->c[0] = GPCMD_START_STOP_UNIT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | pc->c[4] = start; |
| 706 | } |
| 707 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 708 | static void idefloppy_create_test_unit_ready_cmd(struct ide_atapi_pc *pc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | { |
| 710 | idefloppy_init_pc(pc); |
Borislav Petkov | 30d6709 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 711 | pc->c[0] = GPCMD_TEST_UNIT_READY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | } |
| 713 | |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 714 | static void idefloppy_create_rw_cmd(idefloppy_floppy_t *floppy, |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 715 | struct ide_atapi_pc *pc, struct request *rq, |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 716 | unsigned long sector) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | { |
| 718 | int block = sector / floppy->bs_factor; |
| 719 | int blocks = rq->nr_sectors / floppy->bs_factor; |
| 720 | int cmd = rq_data_dir(rq); |
| 721 | |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 722 | debug_log("create_rw10_cmd: block == %d, blocks == %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 723 | block, blocks); |
| 724 | |
| 725 | idefloppy_init_pc(pc); |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 726 | pc->c[0] = cmd == READ ? GPCMD_READ_10 : GPCMD_WRITE_10; |
| 727 | put_unaligned(cpu_to_be16(blocks), (unsigned short *)&pc->c[7]); |
Borislav Petkov | 8f62243 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 728 | put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[2]); |
Borislav Petkov | ae7e8dd | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 729 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 730 | pc->rq = rq; |
| 731 | pc->b_count = cmd == READ ? 0 : rq->bio->bi_size; |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 732 | if (rq->cmd_flags & REQ_RW) |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 733 | pc->flags |= PC_FLAG_WRITING; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 734 | pc->buf = NULL; |
| 735 | pc->req_xfer = pc->buf_size = blocks * floppy->block_size; |
Bartlomiej Zolnierkiewicz | 5e33109 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 736 | pc->flags |= PC_FLAG_DMA_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | } |
| 738 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 739 | static void idefloppy_blockpc_cmd(idefloppy_floppy_t *floppy, |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 740 | struct ide_atapi_pc *pc, struct request *rq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | idefloppy_init_pc(pc); |
| 743 | memcpy(pc->c, rq->cmd, sizeof(pc->c)); |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 744 | pc->rq = rq; |
| 745 | pc->b_count = rq->data_len; |
| 746 | if (rq->data_len && rq_data_dir(rq) == WRITE) |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 747 | pc->flags |= PC_FLAG_WRITING; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 748 | pc->buf = rq->data; |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 749 | if (rq->bio) |
Bartlomiej Zolnierkiewicz | 5e33109 | 2008-07-15 21:21:56 +0200 | [diff] [blame] | 750 | pc->flags |= PC_FLAG_DMA_OK; |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 751 | /* |
| 752 | * possibly problematic, doesn't look like ide-floppy correctly |
| 753 | * handled scattered requests if dma fails... |
| 754 | */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 755 | pc->req_xfer = pc->buf_size = rq->data_len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | } |
| 757 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 758 | static ide_startstop_t idefloppy_do_request(ide_drive_t *drive, |
| 759 | struct request *rq, sector_t block_s) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | { |
| 761 | idefloppy_floppy_t *floppy = drive->driver_data; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 762 | struct ide_atapi_pc *pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 763 | unsigned long block = (unsigned long)block_s; |
| 764 | |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 765 | debug_log("dev: %s, cmd_type: %x, errors: %d\n", |
Randy Dunlap | 18cddac | 2006-06-25 05:48:56 -0700 | [diff] [blame] | 766 | rq->rq_disk ? rq->rq_disk->disk_name : "?", |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 767 | rq->cmd_type, rq->errors); |
| 768 | debug_log("sector: %ld, nr_sectors: %ld, " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 769 | "current_nr_sectors: %d\n", (long)rq->sector, |
| 770 | rq->nr_sectors, rq->current_nr_sectors); |
| 771 | |
| 772 | if (rq->errors >= ERROR_MAX) { |
Borislav Petkov | d652c13 | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 773 | if (floppy->failed_pc) |
| 774 | ide_floppy_report_error(floppy, floppy->failed_pc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 775 | else |
| 776 | printk(KERN_ERR "ide-floppy: %s: I/O error\n", |
| 777 | drive->name); |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 778 | idefloppy_end_request(drive, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 779 | return ide_stopped; |
| 780 | } |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 781 | if (blk_fs_request(rq)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 782 | if (((long)rq->sector % floppy->bs_factor) || |
| 783 | (rq->nr_sectors % floppy->bs_factor)) { |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 784 | printk(KERN_ERR "%s: unsupported r/w request size\n", |
| 785 | drive->name); |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 786 | idefloppy_end_request(drive, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 787 | return ide_stopped; |
| 788 | } |
| 789 | pc = idefloppy_next_pc_storage(drive); |
| 790 | idefloppy_create_rw_cmd(floppy, pc, rq, block); |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 791 | } else if (blk_special_request(rq)) { |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 792 | pc = (struct ide_atapi_pc *) rq->buffer; |
Jens Axboe | 4aff5e2 | 2006-08-10 08:44:47 +0200 | [diff] [blame] | 793 | } else if (blk_pc_request(rq)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 794 | pc = idefloppy_next_pc_storage(drive); |
Jens Axboe | 3d6392c | 2007-07-09 12:38:05 +0200 | [diff] [blame] | 795 | idefloppy_blockpc_cmd(floppy, pc, rq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 796 | } else { |
| 797 | blk_dump_rq_flags(rq, |
| 798 | "ide-floppy: unsupported command in queue"); |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 799 | idefloppy_end_request(drive, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 800 | return ide_stopped; |
| 801 | } |
| 802 | |
Bartlomiej Zolnierkiewicz | 5d41893 | 2008-07-15 21:21:57 +0200 | [diff] [blame] | 803 | if (floppy->flags & IDEFLOPPY_FLAG_ZIP_DRIVE) |
| 804 | pc->flags |= PC_FLAG_ZIP_DRIVE; |
| 805 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 806 | pc->rq = rq; |
Bartlomiej Zolnierkiewicz | 5d41893 | 2008-07-15 21:21:57 +0200 | [diff] [blame] | 807 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | return idefloppy_issue_pc(drive, pc); |
| 809 | } |
| 810 | |
| 811 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 812 | * Add a special packet command request to the tail of the request queue, |
| 813 | * and wait for it to be serviced. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 814 | */ |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 815 | 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] | 816 | { |
| 817 | struct ide_floppy_obj *floppy = drive->driver_data; |
FUJITA Tomonori | 6fe1623 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 818 | struct request *rq; |
| 819 | int error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | |
FUJITA Tomonori | 6fe1623 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 821 | rq = blk_get_request(drive->queue, READ, __GFP_WAIT); |
| 822 | rq->buffer = (char *) pc; |
| 823 | rq->cmd_type = REQ_TYPE_SPECIAL; |
| 824 | error = blk_execute_rq(drive->queue, floppy->disk, rq, 0); |
| 825 | blk_put_request(rq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 826 | |
FUJITA Tomonori | 6fe1623 | 2008-07-15 21:21:43 +0200 | [diff] [blame] | 827 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | } |
| 829 | |
| 830 | /* |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 831 | * Look at the flexible disk page parameters. We ignore the CHS capacity |
| 832 | * parameters and use the LBA parameters instead. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 833 | */ |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 834 | static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 835 | { |
| 836 | idefloppy_floppy_t *floppy = drive->driver_data; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 837 | struct ide_atapi_pc pc; |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 838 | u8 *page; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 839 | int capacity, lba_capacity; |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 840 | u16 transfer_rate, sector_size, cyls, rpm; |
| 841 | u8 heads, sectors; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 842 | |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 843 | idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE, |
| 844 | MODE_SENSE_CURRENT); |
| 845 | |
| 846 | if (idefloppy_queue_pc_tail(drive, &pc)) { |
| 847 | printk(KERN_ERR "ide-floppy: Can't get flexible disk page" |
| 848 | " parameters\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 849 | return 1; |
| 850 | } |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 851 | floppy->wp = !!(pc.buf[3] & 0x80); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 852 | set_disk_ro(floppy->disk, floppy->wp); |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 853 | page = &pc.buf[8]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 854 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 855 | transfer_rate = be16_to_cpu(*(u16 *)&pc.buf[8 + 2]); |
| 856 | sector_size = be16_to_cpu(*(u16 *)&pc.buf[8 + 6]); |
| 857 | cyls = be16_to_cpu(*(u16 *)&pc.buf[8 + 8]); |
| 858 | rpm = be16_to_cpu(*(u16 *)&pc.buf[8 + 28]); |
| 859 | heads = pc.buf[8 + 4]; |
| 860 | sectors = pc.buf[8 + 5]; |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 861 | |
| 862 | capacity = cyls * heads * sectors * sector_size; |
| 863 | |
| 864 | if (memcmp(page, &floppy->flexible_disk_page, 32)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 865 | printk(KERN_INFO "%s: %dkB, %d/%d/%d CHS, %d kBps, " |
| 866 | "%d sector size, %d rpm\n", |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 867 | drive->name, capacity / 1024, cyls, heads, |
| 868 | sectors, transfer_rate / 8, sector_size, rpm); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 869 | |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 870 | memcpy(&floppy->flexible_disk_page, page, 32); |
| 871 | drive->bios_cyl = cyls; |
| 872 | drive->bios_head = heads; |
| 873 | drive->bios_sect = sectors; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 874 | lba_capacity = floppy->blocks * floppy->block_size; |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 875 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | if (capacity < lba_capacity) { |
| 877 | printk(KERN_NOTICE "%s: The disk reports a capacity of %d " |
| 878 | "bytes, but the drive only handles %d\n", |
| 879 | drive->name, lba_capacity, capacity); |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 880 | floppy->blocks = floppy->block_size ? |
| 881 | capacity / floppy->block_size : 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 882 | } |
| 883 | return 0; |
| 884 | } |
| 885 | |
Borislav Petkov | 948391d | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 886 | static int idefloppy_get_sfrp_bit(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | { |
| 888 | idefloppy_floppy_t *floppy = drive->driver_data; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 889 | struct ide_atapi_pc pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 890 | |
| 891 | floppy->srfp = 0; |
| 892 | idefloppy_create_mode_sense_cmd(&pc, IDEFLOPPY_CAPABILITIES_PAGE, |
| 893 | MODE_SENSE_CURRENT); |
| 894 | |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 895 | pc.flags |= PC_FLAG_SUPPRESS_ERROR; |
Borislav Petkov | 948391d | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 896 | if (idefloppy_queue_pc_tail(drive, &pc)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 897 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 898 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 899 | floppy->srfp = pc.buf[8 + 2] & 0x40; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 900 | return (0); |
| 901 | } |
| 902 | |
| 903 | /* |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 904 | * Determine if a media is present in the floppy drive, and if so, its LBA |
| 905 | * capacity. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 906 | */ |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 907 | static int ide_floppy_get_capacity(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 908 | { |
| 909 | idefloppy_floppy_t *floppy = drive->driver_data; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 910 | struct ide_atapi_pc pc; |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 911 | u8 *cap_desc; |
| 912 | u8 header_len, desc_cnt; |
| 913 | int i, rc = 1, blocks, length; |
| 914 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 915 | drive->bios_cyl = 0; |
| 916 | drive->bios_head = drive->bios_sect = 0; |
Alan Cox | fdb77da | 2007-02-17 02:40:20 +0100 | [diff] [blame] | 917 | floppy->blocks = 0; |
| 918 | floppy->bs_factor = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 919 | set_capacity(floppy->disk, 0); |
| 920 | |
| 921 | idefloppy_create_read_capacity_cmd(&pc); |
| 922 | if (idefloppy_queue_pc_tail(drive, &pc)) { |
| 923 | printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n"); |
| 924 | return 1; |
| 925 | } |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 926 | header_len = pc.buf[3]; |
| 927 | cap_desc = &pc.buf[4]; |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 928 | desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 929 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 930 | for (i = 0; i < desc_cnt; i++) { |
| 931 | unsigned int desc_start = 4 + i*8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 932 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 933 | blocks = be32_to_cpu(*(u32 *)&pc.buf[desc_start]); |
| 934 | length = be16_to_cpu(*(u16 *)&pc.buf[desc_start + 6]); |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 935 | |
| 936 | debug_log("Descriptor %d: %dkB, %d blocks, %d sector size\n", |
| 937 | i, blocks * length / 1024, blocks, length); |
| 938 | |
| 939 | if (i) |
| 940 | continue; |
| 941 | /* |
| 942 | * the code below is valid only for the 1st descriptor, ie i=0 |
| 943 | */ |
| 944 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 945 | switch (pc.buf[desc_start + 4] & 0x03) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 946 | /* Clik! drive returns this instead of CAPACITY_CURRENT */ |
| 947 | case CAPACITY_UNFORMATTED: |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 948 | if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 949 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 950 | * If it is not a clik drive, break out |
| 951 | * (maintains previous driver behaviour) |
| 952 | */ |
| 953 | break; |
| 954 | case CAPACITY_CURRENT: |
| 955 | /* Normal Zip/LS-120 disks */ |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 956 | if (memcmp(cap_desc, &floppy->cap_desc, 8)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 957 | printk(KERN_INFO "%s: %dkB, %d blocks, %d " |
| 958 | "sector size\n", drive->name, |
| 959 | blocks * length / 1024, blocks, length); |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 960 | memcpy(&floppy->cap_desc, cap_desc, 8); |
| 961 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 962 | if (!length || length % 512) { |
| 963 | printk(KERN_NOTICE "%s: %d bytes block size " |
| 964 | "not supported\n", drive->name, length); |
| 965 | } else { |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 966 | floppy->blocks = blocks; |
| 967 | floppy->block_size = length; |
| 968 | floppy->bs_factor = length / 512; |
| 969 | if (floppy->bs_factor != 1) |
| 970 | printk(KERN_NOTICE "%s: warning: non " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 971 | "512 bytes block size not " |
| 972 | "fully supported\n", |
| 973 | drive->name); |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 974 | rc = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 975 | } |
| 976 | break; |
| 977 | case CAPACITY_NO_CARTRIDGE: |
| 978 | /* |
| 979 | * This is a KERN_ERR so it appears on screen |
| 980 | * for the user to see |
| 981 | */ |
| 982 | printk(KERN_ERR "%s: No disk in drive\n", drive->name); |
| 983 | break; |
| 984 | case CAPACITY_INVALID: |
| 985 | printk(KERN_ERR "%s: Invalid capacity for disk " |
| 986 | "in drive\n", drive->name); |
| 987 | break; |
| 988 | } |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 989 | debug_log("Descriptor 0 Code: %d\n", |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 990 | pc.buf[desc_start + 4] & 0x03); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 991 | } |
| 992 | |
| 993 | /* Clik! disk does not support get_flexible_disk_page */ |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 994 | if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) |
Borislav Petkov | 8e81bbb | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 995 | (void) ide_floppy_get_flexible_disk_page(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 996 | |
| 997 | set_capacity(floppy->disk, floppy->blocks * floppy->bs_factor); |
| 998 | return rc; |
| 999 | } |
| 1000 | |
| 1001 | /* |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1002 | * Obtain the list of formattable capacities. |
| 1003 | * Very similar to ide_floppy_get_capacity, except that we push the capacity |
| 1004 | * descriptors to userland, instead of our own structures. |
| 1005 | * |
| 1006 | * Userland gives us the following structure: |
| 1007 | * |
| 1008 | * struct idefloppy_format_capacities { |
| 1009 | * int nformats; |
| 1010 | * struct { |
| 1011 | * int nblocks; |
| 1012 | * int blocksize; |
| 1013 | * } formats[]; |
| 1014 | * }; |
| 1015 | * |
| 1016 | * userland initializes nformats to the number of allocated formats[] records. |
| 1017 | * On exit we set nformats to the number of records we've actually initialized. |
| 1018 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1019 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1020 | 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] | 1021 | { |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 1022 | struct ide_atapi_pc pc; |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1023 | u8 header_len, desc_cnt; |
| 1024 | int i, blocks, length, u_array_size, u_index; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1025 | int __user *argp; |
| 1026 | |
| 1027 | if (get_user(u_array_size, arg)) |
| 1028 | return (-EFAULT); |
| 1029 | |
| 1030 | if (u_array_size <= 0) |
| 1031 | return (-EINVAL); |
| 1032 | |
| 1033 | idefloppy_create_read_capacity_cmd(&pc); |
| 1034 | if (idefloppy_queue_pc_tail(drive, &pc)) { |
| 1035 | printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n"); |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1036 | return (-EIO); |
| 1037 | } |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 1038 | header_len = pc.buf[3]; |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1039 | desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1040 | |
| 1041 | u_index = 0; |
| 1042 | argp = arg + 1; |
| 1043 | |
| 1044 | /* |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1045 | * We always skip the first capacity descriptor. That's the current |
| 1046 | * capacity. We are interested in the remaining descriptors, the |
| 1047 | * formattable capacities. |
| 1048 | */ |
| 1049 | for (i = 1; i < desc_cnt; i++) { |
| 1050 | unsigned int desc_start = 4 + i*8; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1051 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1052 | if (u_index >= u_array_size) |
| 1053 | break; /* User-supplied buffer too small */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1054 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 1055 | blocks = be32_to_cpu(*(u32 *)&pc.buf[desc_start]); |
| 1056 | length = be16_to_cpu(*(u16 *)&pc.buf[desc_start + 6]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1057 | |
| 1058 | if (put_user(blocks, argp)) |
| 1059 | return(-EFAULT); |
| 1060 | ++argp; |
| 1061 | |
| 1062 | if (put_user(length, argp)) |
| 1063 | return (-EFAULT); |
| 1064 | ++argp; |
| 1065 | |
| 1066 | ++u_index; |
| 1067 | } |
| 1068 | |
| 1069 | if (put_user(u_index, arg)) |
| 1070 | return (-EFAULT); |
| 1071 | return (0); |
| 1072 | } |
| 1073 | |
| 1074 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1075 | * Get ATAPI_FORMAT_UNIT progress indication. |
| 1076 | * |
| 1077 | * Userland gives a pointer to an int. The int is set to a progress |
| 1078 | * indicator 0-65536, with 65536=100%. |
| 1079 | * |
| 1080 | * If the drive does not support format progress indication, we just check |
| 1081 | * the dsc bit, and return either 0 or 65536. |
| 1082 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1083 | |
| 1084 | static int idefloppy_get_format_progress(ide_drive_t *drive, int __user *arg) |
| 1085 | { |
| 1086 | idefloppy_floppy_t *floppy = drive->driver_data; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 1087 | struct ide_atapi_pc pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1088 | int progress_indication = 0x10000; |
| 1089 | |
| 1090 | if (floppy->srfp) { |
| 1091 | idefloppy_create_request_sense_cmd(&pc); |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1092 | if (idefloppy_queue_pc_tail(drive, &pc)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1093 | return (-EIO); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1094 | |
| 1095 | if (floppy->sense_key == 2 && |
| 1096 | floppy->asc == 4 && |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1097 | floppy->ascq == 4) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1098 | progress_indication = floppy->progress_indication; |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1099 | |
| 1100 | /* Else assume format_unit has finished, and we're at 0x10000 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1101 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1102 | unsigned long flags; |
Bartlomiej Zolnierkiewicz | 22c525b | 2008-01-25 22:17:11 +0100 | [diff] [blame] | 1103 | u8 stat; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1104 | |
| 1105 | local_irq_save(flags); |
Bartlomiej Zolnierkiewicz | c47137a | 2008-02-06 02:57:51 +0100 | [diff] [blame] | 1106 | stat = ide_read_status(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1107 | local_irq_restore(flags); |
| 1108 | |
Bartlomiej Zolnierkiewicz | 22c525b | 2008-01-25 22:17:11 +0100 | [diff] [blame] | 1109 | progress_indication = ((stat & SEEK_STAT) == 0) ? 0 : 0x10000; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1110 | } |
| 1111 | if (put_user(progress_indication, arg)) |
| 1112 | return (-EFAULT); |
| 1113 | |
| 1114 | return (0); |
| 1115 | } |
| 1116 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1117 | static sector_t idefloppy_capacity(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1118 | { |
| 1119 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 1120 | unsigned long capacity = floppy->blocks * floppy->bs_factor; |
| 1121 | |
| 1122 | return capacity; |
| 1123 | } |
| 1124 | |
| 1125 | /* |
Borislav Petkov | f373bd8 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 1126 | * Check whether we can support a drive, based on the ATAPI IDENTIFY command |
| 1127 | * results. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1128 | */ |
Borislav Petkov | f373bd8 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 1129 | static int idefloppy_identify_device(ide_drive_t *drive, struct hd_driveid *id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1130 | { |
Borislav Petkov | 3ad6776 | 2008-04-18 00:46:25 +0200 | [diff] [blame] | 1131 | u8 gcw[2]; |
| 1132 | u8 device_type, protocol, removable, drq_type, packet_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1133 | |
| 1134 | *((u16 *) &gcw) = id->config; |
| 1135 | |
Borislav Petkov | 3ad6776 | 2008-04-18 00:46:25 +0200 | [diff] [blame] | 1136 | device_type = gcw[1] & 0x1F; |
| 1137 | removable = (gcw[0] & 0x80) >> 7; |
| 1138 | protocol = (gcw[1] & 0xC0) >> 6; |
| 1139 | drq_type = (gcw[0] & 0x60) >> 5; |
| 1140 | packet_size = gcw[0] & 0x03; |
| 1141 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1142 | #ifdef CONFIG_PPC |
| 1143 | /* kludge for Apple PowerBook internal zip */ |
Borislav Petkov | 3ad6776 | 2008-04-18 00:46:25 +0200 | [diff] [blame] | 1144 | if (device_type == 5 && |
| 1145 | !strstr(id->model, "CD-ROM") && strstr(id->model, "ZIP")) |
| 1146 | device_type = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1147 | #endif |
| 1148 | |
Borislav Petkov | 3ad6776 | 2008-04-18 00:46:25 +0200 | [diff] [blame] | 1149 | if (protocol != 2) |
Borislav Petkov | f373bd8 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 1150 | printk(KERN_ERR "ide-floppy: Protocol (0x%02x) is not ATAPI\n", |
Borislav Petkov | 3ad6776 | 2008-04-18 00:46:25 +0200 | [diff] [blame] | 1151 | protocol); |
| 1152 | else if (device_type != 0) |
Borislav Petkov | f373bd8 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 1153 | printk(KERN_ERR "ide-floppy: Device type (0x%02x) is not set " |
Borislav Petkov | 3ad6776 | 2008-04-18 00:46:25 +0200 | [diff] [blame] | 1154 | "to floppy\n", device_type); |
| 1155 | else if (!removable) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1156 | printk(KERN_ERR "ide-floppy: The removable flag is not set\n"); |
Borislav Petkov | 3ad6776 | 2008-04-18 00:46:25 +0200 | [diff] [blame] | 1157 | else if (drq_type == 3) |
Borislav Petkov | f373bd8 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 1158 | printk(KERN_ERR "ide-floppy: Sorry, DRQ type (0x%02x) not " |
Borislav Petkov | 3ad6776 | 2008-04-18 00:46:25 +0200 | [diff] [blame] | 1159 | "supported\n", drq_type); |
| 1160 | else if (packet_size != 0) |
Borislav Petkov | f373bd8 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 1161 | printk(KERN_ERR "ide-floppy: Packet size (0x%02x) is not 12 " |
Borislav Petkov | 3ad6776 | 2008-04-18 00:46:25 +0200 | [diff] [blame] | 1162 | "bytes\n", packet_size); |
| 1163 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1164 | return 1; |
| 1165 | return 0; |
| 1166 | } |
| 1167 | |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 1168 | #ifdef CONFIG_IDE_PROC_FS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1169 | static void idefloppy_add_settings(ide_drive_t *drive) |
| 1170 | { |
| 1171 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 1172 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1173 | ide_add_setting(drive, "bios_cyl", SETTING_RW, TYPE_INT, 0, 1023, 1, 1, |
| 1174 | &drive->bios_cyl, NULL); |
| 1175 | ide_add_setting(drive, "bios_head", SETTING_RW, TYPE_BYTE, 0, 255, 1, 1, |
| 1176 | &drive->bios_head, NULL); |
| 1177 | ide_add_setting(drive, "bios_sect", SETTING_RW, TYPE_BYTE, 0, 63, 1, 1, |
| 1178 | &drive->bios_sect, NULL); |
| 1179 | ide_add_setting(drive, "ticks", SETTING_RW, TYPE_BYTE, 0, 255, 1, 1, |
| 1180 | &floppy->ticks, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1181 | } |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 1182 | #else |
| 1183 | static inline void idefloppy_add_settings(ide_drive_t *drive) { ; } |
| 1184 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1185 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1186 | static void idefloppy_setup(ide_drive_t *drive, idefloppy_floppy_t *floppy) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1187 | { |
Borislav Petkov | 3ad6776 | 2008-04-18 00:46:25 +0200 | [diff] [blame] | 1188 | u8 gcw[2]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1189 | |
| 1190 | *((u16 *) &gcw) = drive->id->config; |
| 1191 | floppy->pc = floppy->pc_stack; |
Borislav Petkov | 3ad6776 | 2008-04-18 00:46:25 +0200 | [diff] [blame] | 1192 | |
| 1193 | if (((gcw[0] & 0x60) >> 5) == 1) |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1194 | floppy->flags |= IDEFLOPPY_FLAG_DRQ_INTERRUPT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1195 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1196 | * We used to check revisions here. At this point however I'm giving up. |
| 1197 | * Just assume they are all broken, its easier. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1198 | * |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1199 | * The actual reason for the workarounds was likely a driver bug after |
| 1200 | * all rather than a firmware bug, and the workaround below used to hide |
| 1201 | * it. It should be fixed as of version 1.9, but to be on the safe side |
| 1202 | * we'll leave the limitation below for the 2.2.x tree. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1203 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1204 | if (!strncmp(drive->id->model, "IOMEGA ZIP 100 ATAPI", 20)) { |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1205 | floppy->flags |= IDEFLOPPY_FLAG_ZIP_DRIVE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1206 | /* This value will be visible in the /proc/ide/hdx/settings */ |
| 1207 | floppy->ticks = IDEFLOPPY_TICKS_DELAY; |
| 1208 | blk_queue_max_sectors(drive->queue, 64); |
| 1209 | } |
| 1210 | |
| 1211 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1212 | * Guess what? The IOMEGA Clik! drive also needs the above fix. It makes |
| 1213 | * nasty clicking noises without it, so please don't remove this. |
| 1214 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1215 | if (strncmp(drive->id->model, "IOMEGA Clik!", 11) == 0) { |
| 1216 | blk_queue_max_sectors(drive->queue, 64); |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1217 | floppy->flags |= IDEFLOPPY_FLAG_CLIK_DRIVE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1218 | } |
| 1219 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1220 | (void) ide_floppy_get_capacity(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1221 | idefloppy_add_settings(drive); |
| 1222 | } |
| 1223 | |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 1224 | static void ide_floppy_remove(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1225 | { |
| 1226 | idefloppy_floppy_t *floppy = drive->driver_data; |
| 1227 | struct gendisk *g = floppy->disk; |
| 1228 | |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 1229 | ide_proc_unregister_driver(drive, floppy->driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1230 | |
| 1231 | del_gendisk(g); |
| 1232 | |
| 1233 | ide_floppy_put(floppy); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1234 | } |
| 1235 | |
Borislav Petkov | 9a24b63 | 2008-02-02 19:56:33 +0100 | [diff] [blame] | 1236 | static void idefloppy_cleanup_obj(struct kref *kref) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1237 | { |
| 1238 | struct ide_floppy_obj *floppy = to_ide_floppy(kref); |
| 1239 | ide_drive_t *drive = floppy->drive; |
| 1240 | struct gendisk *g = floppy->disk; |
| 1241 | |
| 1242 | drive->driver_data = NULL; |
| 1243 | g->private_data = NULL; |
| 1244 | put_disk(g); |
| 1245 | kfree(floppy); |
| 1246 | } |
| 1247 | |
Bartlomiej Zolnierkiewicz | ecfd80e | 2007-05-10 00:01:09 +0200 | [diff] [blame] | 1248 | #ifdef CONFIG_IDE_PROC_FS |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1249 | static int proc_idefloppy_read_capacity(char *page, char **start, off_t off, |
| 1250 | int count, int *eof, void *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1251 | { |
| 1252 | ide_drive_t*drive = (ide_drive_t *)data; |
| 1253 | int len; |
| 1254 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1255 | len = sprintf(page, "%llu\n", (long long)idefloppy_capacity(drive)); |
| 1256 | PROC_IDE_READ_RETURN(page, start, off, count, eof, len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1257 | } |
| 1258 | |
| 1259 | static ide_proc_entry_t idefloppy_proc[] = { |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1260 | { "capacity", S_IFREG|S_IRUGO, proc_idefloppy_read_capacity, NULL }, |
| 1261 | { "geometry", S_IFREG|S_IRUGO, proc_ide_read_geometry, NULL }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1262 | { NULL, 0, NULL, NULL } |
| 1263 | }; |
Bartlomiej Zolnierkiewicz | ecfd80e | 2007-05-10 00:01:09 +0200 | [diff] [blame] | 1264 | #endif /* CONFIG_IDE_PROC_FS */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1265 | |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 1266 | static int ide_floppy_probe(ide_drive_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1267 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1268 | static ide_driver_t idefloppy_driver = { |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1269 | .gen_driver = { |
Laurent Riffard | 4ef3b8f | 2005-11-18 22:15:40 +0100 | [diff] [blame] | 1270 | .owner = THIS_MODULE, |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1271 | .name = "ide-floppy", |
| 1272 | .bus = &ide_bus_type, |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1273 | }, |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 1274 | .probe = ide_floppy_probe, |
| 1275 | .remove = ide_floppy_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1276 | .version = IDEFLOPPY_VERSION, |
| 1277 | .media = ide_floppy, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1278 | .supports_dsc_overlap = 0, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1279 | .do_request = idefloppy_do_request, |
Borislav Petkov | c2b2b29 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 1280 | .end_request = idefloppy_end_request, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1281 | .error = __ide_error, |
| 1282 | .abort = __ide_abort, |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 1283 | #ifdef CONFIG_IDE_PROC_FS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1284 | .proc = idefloppy_proc, |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 1285 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1286 | }; |
| 1287 | |
| 1288 | static int idefloppy_open(struct inode *inode, struct file *filp) |
| 1289 | { |
| 1290 | struct gendisk *disk = inode->i_bdev->bd_disk; |
| 1291 | struct ide_floppy_obj *floppy; |
| 1292 | ide_drive_t *drive; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 1293 | struct ide_atapi_pc pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1294 | int ret = 0; |
| 1295 | |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 1296 | debug_log("Reached %s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1297 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1298 | floppy = ide_floppy_get(disk); |
| 1299 | if (!floppy) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1300 | return -ENXIO; |
| 1301 | |
| 1302 | drive = floppy->drive; |
| 1303 | |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 1304 | floppy->openers++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1305 | |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 1306 | if (floppy->openers == 1) { |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1307 | floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1308 | /* Just in case */ |
| 1309 | |
| 1310 | idefloppy_create_test_unit_ready_cmd(&pc); |
| 1311 | if (idefloppy_queue_pc_tail(drive, &pc)) { |
| 1312 | idefloppy_create_start_stop_cmd(&pc, 1); |
| 1313 | (void) idefloppy_queue_pc_tail(drive, &pc); |
| 1314 | } |
| 1315 | |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1316 | if (ide_floppy_get_capacity(drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1317 | && (filp->f_flags & O_NDELAY) == 0 |
| 1318 | /* |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1319 | * Allow O_NDELAY to open a drive without a disk, or with an |
| 1320 | * unreadable disk, so that we can get the format capacity |
| 1321 | * of the drive or begin the format - Sam |
| 1322 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1323 | ) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1324 | ret = -EIO; |
| 1325 | goto out_put_floppy; |
| 1326 | } |
| 1327 | |
| 1328 | if (floppy->wp && (filp->f_mode & 2)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1329 | ret = -EROFS; |
| 1330 | goto out_put_floppy; |
| 1331 | } |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1332 | floppy->flags |= IDEFLOPPY_FLAG_MEDIA_CHANGED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1333 | /* IOMEGA Clik! drives do not support lock/unlock commands */ |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1334 | if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1335 | idefloppy_create_prevent_cmd(&pc, 1); |
| 1336 | (void) idefloppy_queue_pc_tail(drive, &pc); |
| 1337 | } |
| 1338 | check_disk_change(inode->i_bdev); |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1339 | } else if (floppy->flags & IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1340 | ret = -EBUSY; |
| 1341 | goto out_put_floppy; |
| 1342 | } |
| 1343 | return 0; |
| 1344 | |
| 1345 | out_put_floppy: |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 1346 | floppy->openers--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1347 | ide_floppy_put(floppy); |
| 1348 | return ret; |
| 1349 | } |
| 1350 | |
| 1351 | static int idefloppy_release(struct inode *inode, struct file *filp) |
| 1352 | { |
| 1353 | struct gendisk *disk = inode->i_bdev->bd_disk; |
| 1354 | struct ide_floppy_obj *floppy = ide_floppy_g(disk); |
| 1355 | ide_drive_t *drive = floppy->drive; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 1356 | struct ide_atapi_pc pc; |
Borislav Petkov | bcc77d9 | 2008-02-02 19:56:34 +0100 | [diff] [blame] | 1357 | |
| 1358 | debug_log("Reached %s\n", __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1359 | |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 1360 | if (floppy->openers == 1) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1361 | /* IOMEGA Clik! drives do not support lock/unlock commands */ |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1362 | if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1363 | idefloppy_create_prevent_cmd(&pc, 0); |
| 1364 | (void) idefloppy_queue_pc_tail(drive, &pc); |
| 1365 | } |
| 1366 | |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1367 | floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1368 | } |
Bartlomiej Zolnierkiewicz | c94964a | 2007-02-17 02:40:24 +0100 | [diff] [blame] | 1369 | |
| 1370 | floppy->openers--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1371 | |
| 1372 | ide_floppy_put(floppy); |
| 1373 | |
| 1374 | return 0; |
| 1375 | } |
| 1376 | |
Christoph Hellwig | a885c8c | 2006-01-08 01:02:50 -0800 | [diff] [blame] | 1377 | static int idefloppy_getgeo(struct block_device *bdev, struct hd_geometry *geo) |
| 1378 | { |
| 1379 | struct ide_floppy_obj *floppy = ide_floppy_g(bdev->bd_disk); |
| 1380 | ide_drive_t *drive = floppy->drive; |
| 1381 | |
| 1382 | geo->heads = drive->bios_head; |
| 1383 | geo->sectors = drive->bios_sect; |
| 1384 | geo->cylinders = (u16)drive->bios_cyl; /* truncate */ |
| 1385 | return 0; |
| 1386 | } |
| 1387 | |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 1388 | static int ide_floppy_lockdoor(idefloppy_floppy_t *floppy, |
| 1389 | struct ide_atapi_pc *pc, unsigned long arg, unsigned int cmd) |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1390 | { |
| 1391 | if (floppy->openers > 1) |
| 1392 | return -EBUSY; |
| 1393 | |
| 1394 | /* The IOMEGA Clik! Drive doesn't support this command - |
| 1395 | * no room for an eject mechanism */ |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1396 | if (!(floppy->flags & IDEFLOPPY_FLAG_CLIK_DRIVE)) { |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1397 | int prevent = arg ? 1 : 0; |
| 1398 | |
| 1399 | if (cmd == CDROMEJECT) |
| 1400 | prevent = 0; |
| 1401 | |
| 1402 | idefloppy_create_prevent_cmd(pc, prevent); |
| 1403 | (void) idefloppy_queue_pc_tail(floppy->drive, pc); |
| 1404 | } |
| 1405 | |
| 1406 | if (cmd == CDROMEJECT) { |
| 1407 | idefloppy_create_start_stop_cmd(pc, 2); |
| 1408 | (void) idefloppy_queue_pc_tail(floppy->drive, pc); |
| 1409 | } |
| 1410 | |
| 1411 | return 0; |
| 1412 | } |
| 1413 | |
| 1414 | static int ide_floppy_format_unit(idefloppy_floppy_t *floppy, |
| 1415 | int __user *arg) |
| 1416 | { |
| 1417 | int blocks, length, flags, err = 0; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 1418 | struct ide_atapi_pc pc; |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1419 | |
| 1420 | if (floppy->openers > 1) { |
| 1421 | /* Don't format if someone is using the disk */ |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1422 | floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS; |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1423 | return -EBUSY; |
| 1424 | } |
| 1425 | |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1426 | floppy->flags |= IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS; |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1427 | |
| 1428 | /* |
| 1429 | * Send ATAPI_FORMAT_UNIT to the drive. |
| 1430 | * |
| 1431 | * Userland gives us the following structure: |
| 1432 | * |
| 1433 | * struct idefloppy_format_command { |
| 1434 | * int nblocks; |
| 1435 | * int blocksize; |
| 1436 | * int flags; |
| 1437 | * } ; |
| 1438 | * |
| 1439 | * flags is a bitmask, currently, the only defined flag is: |
| 1440 | * |
| 1441 | * 0x01 - verify media after format. |
| 1442 | */ |
| 1443 | if (get_user(blocks, arg) || |
| 1444 | get_user(length, arg+1) || |
| 1445 | get_user(flags, arg+2)) { |
| 1446 | err = -EFAULT; |
| 1447 | goto out; |
| 1448 | } |
| 1449 | |
| 1450 | (void) idefloppy_get_sfrp_bit(floppy->drive); |
| 1451 | idefloppy_create_format_unit_cmd(&pc, blocks, length, flags); |
| 1452 | |
| 1453 | if (idefloppy_queue_pc_tail(floppy->drive, &pc)) |
| 1454 | err = -EIO; |
| 1455 | |
| 1456 | out: |
| 1457 | if (err) |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1458 | floppy->flags &= ~IDEFLOPPY_FLAG_FORMAT_IN_PROGRESS; |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1459 | return err; |
| 1460 | } |
| 1461 | |
| 1462 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1463 | static int idefloppy_ioctl(struct inode *inode, struct file *file, |
| 1464 | unsigned int cmd, unsigned long arg) |
| 1465 | { |
| 1466 | struct block_device *bdev = inode->i_bdev; |
| 1467 | struct ide_floppy_obj *floppy = ide_floppy_g(bdev->bd_disk); |
| 1468 | ide_drive_t *drive = floppy->drive; |
Borislav Petkov | 8e55512 | 2008-04-18 00:46:27 +0200 | [diff] [blame] | 1469 | struct ide_atapi_pc pc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1470 | void __user *argp = (void __user *)arg; |
Ondrej Zary | 07203f6 | 2005-11-10 00:25:15 +0100 | [diff] [blame] | 1471 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1472 | |
| 1473 | switch (cmd) { |
| 1474 | case CDROMEJECT: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1475 | /* fall through */ |
| 1476 | case CDROM_LOCKDOOR: |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1477 | return ide_floppy_lockdoor(floppy, &pc, arg, cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1478 | case IDEFLOPPY_IOCTL_FORMAT_SUPPORTED: |
| 1479 | return 0; |
| 1480 | case IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY: |
Borislav Petkov | 194ec0c | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1481 | return ide_floppy_get_format_capacities(drive, argp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1482 | case IDEFLOPPY_IOCTL_FORMAT_START: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1483 | if (!(file->f_mode & 2)) |
| 1484 | return -EPERM; |
| 1485 | |
Borislav Petkov | 20bf7bd | 2008-02-02 19:56:35 +0100 | [diff] [blame] | 1486 | return ide_floppy_format_unit(floppy, (int __user *)arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1487 | case IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS: |
| 1488 | return idefloppy_get_format_progress(drive, argp); |
| 1489 | } |
Bartlomiej Zolnierkiewicz | 89636af | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 1490 | |
| 1491 | /* |
| 1492 | * skip SCSI_IOCTL_SEND_COMMAND (deprecated) |
| 1493 | * and CDROM_SEND_PACKET (legacy) ioctls |
| 1494 | */ |
| 1495 | if (cmd != CDROM_SEND_PACKET && cmd != SCSI_IOCTL_SEND_COMMAND) |
| 1496 | err = scsi_cmd_ioctl(file, bdev->bd_disk->queue, |
| 1497 | bdev->bd_disk, cmd, argp); |
| 1498 | else |
| 1499 | err = -ENOTTY; |
| 1500 | |
| 1501 | if (err == -ENOTTY) |
| 1502 | err = generic_ide_ioctl(drive, file, bdev, cmd, arg); |
| 1503 | |
| 1504 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1505 | } |
| 1506 | |
| 1507 | static int idefloppy_media_changed(struct gendisk *disk) |
| 1508 | { |
| 1509 | struct ide_floppy_obj *floppy = ide_floppy_g(disk); |
| 1510 | ide_drive_t *drive = floppy->drive; |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1511 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1512 | |
| 1513 | /* do not scan partitions twice if this is a removable device */ |
| 1514 | if (drive->attach) { |
| 1515 | drive->attach = 0; |
| 1516 | return 0; |
| 1517 | } |
Borislav Petkov | 6e5fa7b | 2008-02-02 19:56:37 +0100 | [diff] [blame] | 1518 | ret = !!(floppy->flags & IDEFLOPPY_FLAG_MEDIA_CHANGED); |
| 1519 | floppy->flags &= ~IDEFLOPPY_FLAG_MEDIA_CHANGED; |
| 1520 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1521 | } |
| 1522 | |
| 1523 | static int idefloppy_revalidate_disk(struct gendisk *disk) |
| 1524 | { |
| 1525 | struct ide_floppy_obj *floppy = ide_floppy_g(disk); |
| 1526 | set_capacity(disk, idefloppy_capacity(floppy->drive)); |
| 1527 | return 0; |
| 1528 | } |
| 1529 | |
| 1530 | static struct block_device_operations idefloppy_ops = { |
Paolo Ciarrocchi | 52d3ccf | 2008-04-26 17:36:41 +0200 | [diff] [blame] | 1531 | .owner = THIS_MODULE, |
| 1532 | .open = idefloppy_open, |
| 1533 | .release = idefloppy_release, |
| 1534 | .ioctl = idefloppy_ioctl, |
| 1535 | .getgeo = idefloppy_getgeo, |
| 1536 | .media_changed = idefloppy_media_changed, |
| 1537 | .revalidate_disk = idefloppy_revalidate_disk |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1538 | }; |
| 1539 | |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 1540 | static int ide_floppy_probe(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1541 | { |
| 1542 | idefloppy_floppy_t *floppy; |
| 1543 | struct gendisk *g; |
| 1544 | |
| 1545 | if (!strstr("ide-floppy", drive->driver_req)) |
| 1546 | goto failed; |
| 1547 | if (!drive->present) |
| 1548 | goto failed; |
| 1549 | if (drive->media != ide_floppy) |
| 1550 | goto failed; |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1551 | if (!idefloppy_identify_device(drive, drive->id)) { |
| 1552 | printk(KERN_ERR "ide-floppy: %s: not supported by this version" |
| 1553 | " of ide-floppy\n", drive->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1554 | goto failed; |
| 1555 | } |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1556 | floppy = kzalloc(sizeof(idefloppy_floppy_t), GFP_KERNEL); |
| 1557 | if (!floppy) { |
| 1558 | printk(KERN_ERR "ide-floppy: %s: Can't allocate a floppy" |
| 1559 | " structure\n", drive->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1560 | goto failed; |
| 1561 | } |
| 1562 | |
| 1563 | g = alloc_disk(1 << PARTN_BITS); |
| 1564 | if (!g) |
| 1565 | goto out_free_floppy; |
| 1566 | |
| 1567 | ide_init_disk(g, drive); |
| 1568 | |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 1569 | ide_proc_register_driver(drive, &idefloppy_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1570 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1571 | kref_init(&floppy->kref); |
| 1572 | |
| 1573 | floppy->drive = drive; |
| 1574 | floppy->driver = &idefloppy_driver; |
| 1575 | floppy->disk = g; |
| 1576 | |
| 1577 | g->private_data = &floppy->driver; |
| 1578 | |
| 1579 | drive->driver_data = floppy; |
| 1580 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1581 | idefloppy_setup(drive, floppy); |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1582 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1583 | g->minors = 1 << PARTN_BITS; |
| 1584 | g->driverfs_dev = &drive->gendev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1585 | g->flags = drive->removable ? GENHD_FL_REMOVABLE : 0; |
| 1586 | g->fops = &idefloppy_ops; |
| 1587 | drive->attach = 1; |
| 1588 | add_disk(g); |
| 1589 | return 0; |
| 1590 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1591 | out_free_floppy: |
| 1592 | kfree(floppy); |
| 1593 | failed: |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1594 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1595 | } |
| 1596 | |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1597 | static void __exit idefloppy_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1598 | { |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1599 | driver_unregister(&idefloppy_driver.gen_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1600 | } |
| 1601 | |
Bartlomiej Zolnierkiewicz | 17514e8 | 2005-11-19 22:24:35 +0100 | [diff] [blame] | 1602 | static int __init idefloppy_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1603 | { |
| 1604 | printk("ide-floppy driver " IDEFLOPPY_VERSION "\n"); |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 1605 | return driver_register(&idefloppy_driver.gen_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1606 | } |
| 1607 | |
Kay Sievers | 263756e | 2005-12-12 18:03:44 +0100 | [diff] [blame] | 1608 | MODULE_ALIAS("ide:*m-floppy*"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1609 | module_init(idefloppy_init); |
| 1610 | module_exit(idefloppy_exit); |
| 1611 | MODULE_LICENSE("GPL"); |
Borislav Petkov | 0571c7a | 2008-02-02 19:56:38 +0100 | [diff] [blame] | 1612 | MODULE_DESCRIPTION("ATAPI FLOPPY Driver"); |
| 1613 | |