Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _IDE_H |
| 2 | #define _IDE_H |
| 3 | /* |
| 4 | * linux/include/linux/ide.h |
| 5 | * |
| 6 | * Copyright (C) 1994-2002 Linus Torvalds & authors |
| 7 | */ |
| 8 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | #include <linux/init.h> |
| 10 | #include <linux/ioport.h> |
| 11 | #include <linux/hdreg.h> |
| 12 | #include <linux/hdsmart.h> |
| 13 | #include <linux/blkdev.h> |
| 14 | #include <linux/proc_fs.h> |
| 15 | #include <linux/interrupt.h> |
| 16 | #include <linux/bitops.h> |
| 17 | #include <linux/bio.h> |
| 18 | #include <linux/device.h> |
| 19 | #include <linux/pci.h> |
Aleksey Makarov | f36d402 | 2006-01-09 15:59:27 -0800 | [diff] [blame] | 20 | #include <linux/completion.h> |
Hannes Reinecke | e3a59b4 | 2007-02-07 18:19:37 +0100 | [diff] [blame] | 21 | #ifdef CONFIG_BLK_DEV_IDEACPI |
| 22 | #include <acpi/acpi.h> |
| 23 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | #include <asm/byteorder.h> |
| 25 | #include <asm/system.h> |
| 26 | #include <asm/io.h> |
| 27 | #include <asm/semaphore.h> |
Matthias Kaehlcke | f9383c4 | 2007-07-09 23:17:56 +0200 | [diff] [blame] | 28 | #include <asm/mutex.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | /****************************************************************************** |
| 31 | * IDE driver configuration options (play with these as desired): |
| 32 | * |
| 33 | * REALLY_SLOW_IO can be defined in ide.c and ide-cd.c, if necessary |
| 34 | */ |
| 35 | #define INITIAL_MULT_COUNT 0 /* off=0; on=2,4,8,16,32, etc.. */ |
| 36 | |
| 37 | #ifndef SUPPORT_SLOW_DATA_PORTS /* 1 to support slow data ports */ |
| 38 | #define SUPPORT_SLOW_DATA_PORTS 1 /* 0 to reduce kernel size */ |
| 39 | #endif |
| 40 | #ifndef SUPPORT_VLB_SYNC /* 1 to support weird 32-bit chips */ |
| 41 | #define SUPPORT_VLB_SYNC 1 /* 0 to reduce kernel size */ |
| 42 | #endif |
| 43 | #ifndef OK_TO_RESET_CONTROLLER /* 1 needed for good error recovery */ |
| 44 | #define OK_TO_RESET_CONTROLLER 1 /* 0 for use with AH2372A/B interface */ |
| 45 | #endif |
| 46 | |
| 47 | #ifndef DISABLE_IRQ_NOSYNC |
| 48 | #define DISABLE_IRQ_NOSYNC 0 |
| 49 | #endif |
| 50 | |
| 51 | /* |
| 52 | * Used to indicate "no IRQ", should be a value that cannot be an IRQ |
| 53 | * number. |
| 54 | */ |
| 55 | |
| 56 | #define IDE_NO_IRQ (-1) |
| 57 | |
| 58 | /* |
| 59 | * "No user-serviceable parts" beyond this point :) |
| 60 | *****************************************************************************/ |
| 61 | |
| 62 | typedef unsigned char byte; /* used everywhere */ |
| 63 | |
| 64 | /* |
| 65 | * Probably not wise to fiddle with these |
| 66 | */ |
| 67 | #define ERROR_MAX 8 /* Max read/write errors per sector */ |
| 68 | #define ERROR_RESET 3 /* Reset controller every 4th retry */ |
| 69 | #define ERROR_RECAL 1 /* Recalibrate every 2nd retry */ |
| 70 | |
| 71 | /* |
| 72 | * Tune flags |
| 73 | */ |
| 74 | #define IDE_TUNE_NOAUTO 2 |
| 75 | #define IDE_TUNE_AUTO 1 |
| 76 | #define IDE_TUNE_DEFAULT 0 |
| 77 | |
| 78 | /* |
| 79 | * state flags |
| 80 | */ |
| 81 | |
| 82 | #define DMA_PIO_RETRY 1 /* retrying in PIO */ |
| 83 | |
| 84 | #define HWIF(drive) ((ide_hwif_t *)((drive)->hwif)) |
| 85 | #define HWGROUP(drive) ((ide_hwgroup_t *)(HWIF(drive)->hwgroup)) |
| 86 | |
| 87 | /* |
| 88 | * Definitions for accessing IDE controller registers |
| 89 | */ |
| 90 | #define IDE_NR_PORTS (10) |
| 91 | |
| 92 | #define IDE_DATA_OFFSET (0) |
| 93 | #define IDE_ERROR_OFFSET (1) |
| 94 | #define IDE_NSECTOR_OFFSET (2) |
| 95 | #define IDE_SECTOR_OFFSET (3) |
| 96 | #define IDE_LCYL_OFFSET (4) |
| 97 | #define IDE_HCYL_OFFSET (5) |
| 98 | #define IDE_SELECT_OFFSET (6) |
| 99 | #define IDE_STATUS_OFFSET (7) |
| 100 | #define IDE_CONTROL_OFFSET (8) |
| 101 | #define IDE_IRQ_OFFSET (9) |
| 102 | |
| 103 | #define IDE_FEATURE_OFFSET IDE_ERROR_OFFSET |
| 104 | #define IDE_COMMAND_OFFSET IDE_STATUS_OFFSET |
| 105 | |
| 106 | #define IDE_CONTROL_OFFSET_HOB (7) |
| 107 | |
| 108 | #define IDE_DATA_REG (HWIF(drive)->io_ports[IDE_DATA_OFFSET]) |
| 109 | #define IDE_ERROR_REG (HWIF(drive)->io_ports[IDE_ERROR_OFFSET]) |
| 110 | #define IDE_NSECTOR_REG (HWIF(drive)->io_ports[IDE_NSECTOR_OFFSET]) |
| 111 | #define IDE_SECTOR_REG (HWIF(drive)->io_ports[IDE_SECTOR_OFFSET]) |
| 112 | #define IDE_LCYL_REG (HWIF(drive)->io_ports[IDE_LCYL_OFFSET]) |
| 113 | #define IDE_HCYL_REG (HWIF(drive)->io_ports[IDE_HCYL_OFFSET]) |
| 114 | #define IDE_SELECT_REG (HWIF(drive)->io_ports[IDE_SELECT_OFFSET]) |
| 115 | #define IDE_STATUS_REG (HWIF(drive)->io_ports[IDE_STATUS_OFFSET]) |
| 116 | #define IDE_CONTROL_REG (HWIF(drive)->io_ports[IDE_CONTROL_OFFSET]) |
| 117 | #define IDE_IRQ_REG (HWIF(drive)->io_ports[IDE_IRQ_OFFSET]) |
| 118 | |
| 119 | #define IDE_FEATURE_REG IDE_ERROR_REG |
| 120 | #define IDE_COMMAND_REG IDE_STATUS_REG |
| 121 | #define IDE_ALTSTATUS_REG IDE_CONTROL_REG |
| 122 | #define IDE_IREASON_REG IDE_NSECTOR_REG |
| 123 | #define IDE_BCOUNTL_REG IDE_LCYL_REG |
| 124 | #define IDE_BCOUNTH_REG IDE_HCYL_REG |
| 125 | |
| 126 | #define OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good)) |
| 127 | #define BAD_R_STAT (BUSY_STAT | ERR_STAT) |
| 128 | #define BAD_W_STAT (BAD_R_STAT | WRERR_STAT) |
| 129 | #define BAD_STAT (BAD_R_STAT | DRQ_STAT) |
| 130 | #define DRIVE_READY (READY_STAT | SEEK_STAT) |
| 131 | #define DATA_READY (DRQ_STAT) |
| 132 | |
| 133 | #define BAD_CRC (ABRT_ERR | ICRC_ERR) |
| 134 | |
| 135 | #define SATA_NR_PORTS (3) /* 16 possible ?? */ |
| 136 | |
| 137 | #define SATA_STATUS_OFFSET (0) |
| 138 | #define SATA_STATUS_REG (HWIF(drive)->sata_scr[SATA_STATUS_OFFSET]) |
| 139 | #define SATA_ERROR_OFFSET (1) |
| 140 | #define SATA_ERROR_REG (HWIF(drive)->sata_scr[SATA_ERROR_OFFSET]) |
| 141 | #define SATA_CONTROL_OFFSET (2) |
| 142 | #define SATA_CONTROL_REG (HWIF(drive)->sata_scr[SATA_CONTROL_OFFSET]) |
| 143 | |
| 144 | #define SATA_MISC_OFFSET (0) |
| 145 | #define SATA_MISC_REG (HWIF(drive)->sata_misc[SATA_MISC_OFFSET]) |
| 146 | #define SATA_PHY_OFFSET (1) |
| 147 | #define SATA_PHY_REG (HWIF(drive)->sata_misc[SATA_PHY_OFFSET]) |
| 148 | #define SATA_IEN_OFFSET (2) |
| 149 | #define SATA_IEN_REG (HWIF(drive)->sata_misc[SATA_IEN_OFFSET]) |
| 150 | |
| 151 | /* |
| 152 | * Our Physical Region Descriptor (PRD) table should be large enough |
| 153 | * to handle the biggest I/O request we are likely to see. Since requests |
| 154 | * can have no more than 256 sectors, and since the typical blocksize is |
| 155 | * two or more sectors, we could get by with a limit of 128 entries here for |
| 156 | * the usual worst case. Most requests seem to include some contiguous blocks, |
| 157 | * further reducing the number of table entries required. |
| 158 | * |
| 159 | * The driver reverts to PIO mode for individual requests that exceed |
| 160 | * this limit (possible with 512 byte blocksizes, eg. MSDOS f/s), so handling |
| 161 | * 100% of all crazy scenarios here is not necessary. |
| 162 | * |
| 163 | * As it turns out though, we must allocate a full 4KB page for this, |
| 164 | * so the two PRD tables (ide0 & ide1) will each get half of that, |
| 165 | * allowing each to have about 256 entries (8 bytes each) from this. |
| 166 | */ |
| 167 | #define PRD_BYTES 8 |
| 168 | #define PRD_ENTRIES 256 |
| 169 | |
| 170 | /* |
| 171 | * Some more useful definitions |
| 172 | */ |
| 173 | #define PARTN_BITS 6 /* number of minor dev bits for partitions */ |
| 174 | #define MAX_DRIVES 2 /* per interface; 2 assumed by lots of code */ |
| 175 | #define SECTOR_SIZE 512 |
| 176 | #define SECTOR_WORDS (SECTOR_SIZE / 4) /* number of 32bit words per sector */ |
| 177 | #define IDE_LARGE_SEEK(b1,b2,t) (((b1) > (b2) + (t)) || ((b2) > (b1) + (t))) |
| 178 | |
| 179 | /* |
| 180 | * Timeouts for various operations: |
| 181 | */ |
| 182 | #define WAIT_DRQ (HZ/10) /* 100msec - spec allows up to 20ms */ |
| 183 | #define WAIT_READY (5*HZ) /* 5sec - some laptops are very slow */ |
| 184 | #define WAIT_PIDENTIFY (10*HZ) /* 10sec - should be less than 3ms (?), if all ATAPI CD is closed at boot */ |
| 185 | #define WAIT_WORSTCASE (30*HZ) /* 30sec - worst case when spinning up */ |
| 186 | #define WAIT_CMD (10*HZ) /* 10sec - maximum wait for an IRQ to happen */ |
| 187 | #define WAIT_MIN_SLEEP (2*HZ/100) /* 20msec - minimum sleep time */ |
| 188 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | /* |
| 190 | * Check for an interrupt and acknowledge the interrupt status |
| 191 | */ |
| 192 | struct hwif_s; |
| 193 | typedef int (ide_ack_intr_t)(struct hwif_s *); |
| 194 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | /* |
| 196 | * hwif_chipset_t is used to keep track of the specific hardware |
| 197 | * chipset used by each IDE interface, if known. |
| 198 | */ |
Bartlomiej Zolnierkiewicz | 528a572 | 2007-10-20 00:32:30 +0200 | [diff] [blame] | 199 | enum { ide_unknown, ide_generic, ide_pci, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | ide_cmd640, ide_dtc2278, ide_ali14xx, |
| 201 | ide_qd65xx, ide_umc8672, ide_ht6560b, |
| 202 | ide_rz1000, ide_trm290, |
| 203 | ide_cmd646, ide_cy82c693, ide_4drives, |
| 204 | ide_pmac, ide_etrax100, ide_acorn, |
Pete Popov | 26a940e | 2005-09-15 08:03:12 +0000 | [diff] [blame] | 205 | ide_au1xxx, ide_forced |
Bartlomiej Zolnierkiewicz | 528a572 | 2007-10-20 00:32:30 +0200 | [diff] [blame] | 206 | }; |
| 207 | |
| 208 | typedef u8 hwif_chipset_t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | |
| 210 | /* |
| 211 | * Structure to hold all information about the location of this port |
| 212 | */ |
| 213 | typedef struct hw_regs_s { |
| 214 | unsigned long io_ports[IDE_NR_PORTS]; /* task file registers */ |
| 215 | int irq; /* our irq number */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | ide_ack_intr_t *ack_intr; /* acknowledge interrupt */ |
| 217 | hwif_chipset_t chipset; |
Hannes Reinecke | 4349d5c | 2005-11-09 22:47:18 +0100 | [diff] [blame] | 218 | struct device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | } hw_regs_t; |
| 220 | |
Bartlomiej Zolnierkiewicz | baa8f3e | 2007-10-20 00:32:31 +0200 | [diff] [blame] | 221 | struct hwif_s * ide_find_port(unsigned long); |
| 222 | |
Bartlomiej Zolnierkiewicz | fd9bb53 | 2007-10-20 00:32:31 +0200 | [diff] [blame] | 223 | int ide_register_hw(hw_regs_t *, void (*)(struct hwif_s *), int, |
| 224 | struct hwif_s **); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | void ide_setup_ports( hw_regs_t *hw, |
| 227 | unsigned long base, |
| 228 | int *offsets, |
| 229 | unsigned long ctrl, |
| 230 | unsigned long intr, |
| 231 | ide_ack_intr_t *ack_intr, |
| 232 | #if 0 |
| 233 | ide_io_ops_t *iops, |
| 234 | #endif |
| 235 | int irq); |
| 236 | |
| 237 | static inline void ide_std_init_ports(hw_regs_t *hw, |
| 238 | unsigned long io_addr, |
| 239 | unsigned long ctl_addr) |
| 240 | { |
| 241 | unsigned int i; |
| 242 | |
| 243 | for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) |
| 244 | hw->io_ports[i] = io_addr++; |
| 245 | |
| 246 | hw->io_ports[IDE_CONTROL_OFFSET] = ctl_addr; |
| 247 | } |
| 248 | |
| 249 | #include <asm/ide.h> |
| 250 | |
Matt Mackall | 83d7dbc | 2006-10-03 01:14:16 -0700 | [diff] [blame] | 251 | #if !defined(MAX_HWIFS) || defined(CONFIG_EMBEDDED) |
| 252 | #undef MAX_HWIFS |
Bjorn Helgaas | 83ae20c | 2005-11-09 22:58:07 +0100 | [diff] [blame] | 253 | #define MAX_HWIFS CONFIG_IDE_MAX_HWIFS |
| 254 | #endif |
| 255 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | /* needed on alpha, x86/x86_64, ia64, mips, ppc32 and sh */ |
| 257 | #ifndef IDE_ARCH_OBSOLETE_DEFAULTS |
| 258 | # define ide_default_io_base(index) (0) |
| 259 | # define ide_default_irq(base) (0) |
| 260 | # define ide_init_default_irq(base) (0) |
| 261 | #endif |
| 262 | |
Bartlomiej Zolnierkiewicz | 847ddd2 | 2007-10-20 00:32:32 +0200 | [diff] [blame] | 263 | #ifdef CONFIG_IDE_ARCH_OBSOLETE_INIT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | static inline void ide_init_hwif_ports(hw_regs_t *hw, |
| 265 | unsigned long io_addr, |
| 266 | unsigned long ctl_addr, |
| 267 | int *irq) |
| 268 | { |
| 269 | if (!ctl_addr) |
| 270 | ide_std_init_ports(hw, io_addr, ide_default_io_ctl(io_addr)); |
| 271 | else |
| 272 | ide_std_init_ports(hw, io_addr, ctl_addr); |
| 273 | |
| 274 | if (irq) |
| 275 | *irq = 0; |
| 276 | |
| 277 | hw->io_ports[IDE_IRQ_OFFSET] = 0; |
| 278 | |
| 279 | #ifdef CONFIG_PPC32 |
| 280 | if (ppc_ide_md.ide_init_hwif) |
| 281 | ppc_ide_md.ide_init_hwif(hw, io_addr, ctl_addr, irq); |
| 282 | #endif |
| 283 | } |
| 284 | #else |
| 285 | static inline void ide_init_hwif_ports(hw_regs_t *hw, |
| 286 | unsigned long io_addr, |
| 287 | unsigned long ctl_addr, |
| 288 | int *irq) |
| 289 | { |
| 290 | if (io_addr || ctl_addr) |
| 291 | printk(KERN_WARNING "%s: must not be called\n", __FUNCTION__); |
| 292 | } |
Bartlomiej Zolnierkiewicz | 847ddd2 | 2007-10-20 00:32:32 +0200 | [diff] [blame] | 293 | #endif /* CONFIG_IDE_ARCH_OBSOLETE_INIT */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | |
| 295 | /* Currently only m68k, apus and m8xx need it */ |
| 296 | #ifndef IDE_ARCH_ACK_INTR |
| 297 | # define ide_ack_intr(hwif) (1) |
| 298 | #endif |
| 299 | |
| 300 | /* Currently only Atari needs it */ |
| 301 | #ifndef IDE_ARCH_LOCK |
| 302 | # define ide_release_lock() do {} while (0) |
| 303 | # define ide_get_lock(hdlr, data) do {} while (0) |
| 304 | #endif /* IDE_ARCH_LOCK */ |
| 305 | |
| 306 | /* |
| 307 | * Now for the data we need to maintain per-drive: ide_drive_t |
| 308 | */ |
| 309 | |
| 310 | #define ide_scsi 0x21 |
| 311 | #define ide_disk 0x20 |
| 312 | #define ide_optical 0x7 |
| 313 | #define ide_cdrom 0x5 |
| 314 | #define ide_tape 0x1 |
| 315 | #define ide_floppy 0x0 |
| 316 | |
| 317 | /* |
| 318 | * Special Driver Flags |
| 319 | * |
| 320 | * set_geometry : respecify drive geometry |
| 321 | * recalibrate : seek to cyl 0 |
| 322 | * set_multmode : set multmode count |
| 323 | * set_tune : tune interface for drive |
| 324 | * serviced : service command |
| 325 | * reserved : unused |
| 326 | */ |
| 327 | typedef union { |
| 328 | unsigned all : 8; |
| 329 | struct { |
| 330 | #if defined(__LITTLE_ENDIAN_BITFIELD) |
| 331 | unsigned set_geometry : 1; |
| 332 | unsigned recalibrate : 1; |
| 333 | unsigned set_multmode : 1; |
| 334 | unsigned set_tune : 1; |
| 335 | unsigned serviced : 1; |
| 336 | unsigned reserved : 3; |
| 337 | #elif defined(__BIG_ENDIAN_BITFIELD) |
| 338 | unsigned reserved : 3; |
| 339 | unsigned serviced : 1; |
| 340 | unsigned set_tune : 1; |
| 341 | unsigned set_multmode : 1; |
| 342 | unsigned recalibrate : 1; |
| 343 | unsigned set_geometry : 1; |
| 344 | #else |
| 345 | #error "Please fix <asm/byteorder.h>" |
| 346 | #endif |
| 347 | } b; |
| 348 | } special_t; |
| 349 | |
| 350 | /* |
| 351 | * ATA DATA Register Special. |
| 352 | * ATA NSECTOR Count Register(). |
| 353 | * ATAPI Byte Count Register. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | */ |
| 355 | typedef union { |
| 356 | unsigned all :16; |
| 357 | struct { |
| 358 | #if defined(__LITTLE_ENDIAN_BITFIELD) |
| 359 | unsigned low :8; /* LSB */ |
| 360 | unsigned high :8; /* MSB */ |
| 361 | #elif defined(__BIG_ENDIAN_BITFIELD) |
| 362 | unsigned high :8; /* MSB */ |
| 363 | unsigned low :8; /* LSB */ |
| 364 | #else |
| 365 | #error "Please fix <asm/byteorder.h>" |
| 366 | #endif |
| 367 | } b; |
Bartlomiej Zolnierkiewicz | 8447d9d | 2007-10-20 00:32:31 +0200 | [diff] [blame] | 368 | } ata_nsector_t, ata_data_t, atapi_bcount_t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | |
| 370 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | * ATA-IDE Select Register, aka Device-Head |
| 372 | * |
| 373 | * head : always zeros here |
| 374 | * unit : drive select number: 0/1 |
| 375 | * bit5 : always 1 |
| 376 | * lba : using LBA instead of CHS |
| 377 | * bit7 : always 1 |
| 378 | */ |
| 379 | typedef union { |
| 380 | unsigned all : 8; |
| 381 | struct { |
| 382 | #if defined(__LITTLE_ENDIAN_BITFIELD) |
| 383 | unsigned head : 4; |
| 384 | unsigned unit : 1; |
| 385 | unsigned bit5 : 1; |
| 386 | unsigned lba : 1; |
| 387 | unsigned bit7 : 1; |
| 388 | #elif defined(__BIG_ENDIAN_BITFIELD) |
| 389 | unsigned bit7 : 1; |
| 390 | unsigned lba : 1; |
| 391 | unsigned bit5 : 1; |
| 392 | unsigned unit : 1; |
| 393 | unsigned head : 4; |
| 394 | #else |
| 395 | #error "Please fix <asm/byteorder.h>" |
| 396 | #endif |
| 397 | } b; |
| 398 | } select_t, ata_select_t; |
| 399 | |
| 400 | /* |
| 401 | * The ATA-IDE Status Register. |
| 402 | * The ATAPI Status Register. |
| 403 | * |
| 404 | * check : Error occurred |
| 405 | * idx : Index Error |
| 406 | * corr : Correctable error occurred |
| 407 | * drq : Data is request by the device |
| 408 | * dsc : Disk Seek Complete : ata |
| 409 | * : Media access command finished : atapi |
| 410 | * df : Device Fault : ata |
| 411 | * : Reserved : atapi |
| 412 | * drdy : Ready, Command Mode Capable : ata |
| 413 | * : Ignored for ATAPI commands : atapi |
| 414 | * bsy : Disk is Busy |
| 415 | * : The device has access to the command block |
| 416 | */ |
| 417 | typedef union { |
| 418 | unsigned all :8; |
| 419 | struct { |
| 420 | #if defined(__LITTLE_ENDIAN_BITFIELD) |
| 421 | unsigned check :1; |
| 422 | unsigned idx :1; |
| 423 | unsigned corr :1; |
| 424 | unsigned drq :1; |
| 425 | unsigned dsc :1; |
| 426 | unsigned df :1; |
| 427 | unsigned drdy :1; |
| 428 | unsigned bsy :1; |
| 429 | #elif defined(__BIG_ENDIAN_BITFIELD) |
| 430 | unsigned bsy :1; |
| 431 | unsigned drdy :1; |
| 432 | unsigned df :1; |
| 433 | unsigned dsc :1; |
| 434 | unsigned drq :1; |
| 435 | unsigned corr :1; |
| 436 | unsigned idx :1; |
| 437 | unsigned check :1; |
| 438 | #else |
| 439 | #error "Please fix <asm/byteorder.h>" |
| 440 | #endif |
| 441 | } b; |
| 442 | } ata_status_t, atapi_status_t; |
| 443 | |
| 444 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 445 | * ATAPI Feature Register |
| 446 | * |
| 447 | * dma : Using DMA or PIO |
| 448 | * reserved321 : Reserved |
| 449 | * reserved654 : Reserved (Tag Type) |
| 450 | * reserved7 : Reserved |
| 451 | */ |
| 452 | typedef union { |
| 453 | unsigned all :8; |
| 454 | struct { |
| 455 | #if defined(__LITTLE_ENDIAN_BITFIELD) |
| 456 | unsigned dma :1; |
| 457 | unsigned reserved321 :3; |
| 458 | unsigned reserved654 :3; |
| 459 | unsigned reserved7 :1; |
| 460 | #elif defined(__BIG_ENDIAN_BITFIELD) |
| 461 | unsigned reserved7 :1; |
| 462 | unsigned reserved654 :3; |
| 463 | unsigned reserved321 :3; |
| 464 | unsigned dma :1; |
| 465 | #else |
| 466 | #error "Please fix <asm/byteorder.h>" |
| 467 | #endif |
| 468 | } b; |
| 469 | } atapi_feature_t; |
| 470 | |
| 471 | /* |
| 472 | * ATAPI Interrupt Reason Register. |
| 473 | * |
| 474 | * cod : Information transferred is command (1) or data (0) |
| 475 | * io : The device requests us to read (1) or write (0) |
| 476 | * reserved : Reserved |
| 477 | */ |
| 478 | typedef union { |
| 479 | unsigned all :8; |
| 480 | struct { |
| 481 | #if defined(__LITTLE_ENDIAN_BITFIELD) |
| 482 | unsigned cod :1; |
| 483 | unsigned io :1; |
| 484 | unsigned reserved :6; |
| 485 | #elif defined(__BIG_ENDIAN_BITFIELD) |
| 486 | unsigned reserved :6; |
| 487 | unsigned io :1; |
| 488 | unsigned cod :1; |
| 489 | #else |
| 490 | #error "Please fix <asm/byteorder.h>" |
| 491 | #endif |
| 492 | } b; |
| 493 | } atapi_ireason_t; |
| 494 | |
| 495 | /* |
| 496 | * The ATAPI error register. |
| 497 | * |
| 498 | * ili : Illegal Length Indication |
| 499 | * eom : End Of Media Detected |
| 500 | * abrt : Aborted command - As defined by ATA |
| 501 | * mcr : Media Change Requested - As defined by ATA |
| 502 | * sense_key : Sense key of the last failed packet command |
| 503 | */ |
| 504 | typedef union { |
| 505 | unsigned all :8; |
| 506 | struct { |
| 507 | #if defined(__LITTLE_ENDIAN_BITFIELD) |
| 508 | unsigned ili :1; |
| 509 | unsigned eom :1; |
| 510 | unsigned abrt :1; |
| 511 | unsigned mcr :1; |
| 512 | unsigned sense_key :4; |
| 513 | #elif defined(__BIG_ENDIAN_BITFIELD) |
| 514 | unsigned sense_key :4; |
| 515 | unsigned mcr :1; |
| 516 | unsigned abrt :1; |
| 517 | unsigned eom :1; |
| 518 | unsigned ili :1; |
| 519 | #else |
| 520 | #error "Please fix <asm/byteorder.h>" |
| 521 | #endif |
| 522 | } b; |
| 523 | } atapi_error_t; |
| 524 | |
| 525 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | * Status returned from various ide_ functions |
| 527 | */ |
| 528 | typedef enum { |
| 529 | ide_stopped, /* no drive operation was started */ |
| 530 | ide_started, /* a drive operation was started, handler was set */ |
| 531 | } ide_startstop_t; |
| 532 | |
| 533 | struct ide_driver_s; |
| 534 | struct ide_settings_s; |
| 535 | |
Hannes Reinecke | e3a59b4 | 2007-02-07 18:19:37 +0100 | [diff] [blame] | 536 | #ifdef CONFIG_BLK_DEV_IDEACPI |
| 537 | struct ide_acpi_drive_link; |
| 538 | struct ide_acpi_hwif_link; |
| 539 | #endif |
| 540 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | typedef struct ide_drive_s { |
| 542 | char name[4]; /* drive name, such as "hda" */ |
| 543 | char driver_req[10]; /* requests specific driver */ |
| 544 | |
Jens Axboe | 165125e | 2007-07-24 09:28:11 +0200 | [diff] [blame] | 545 | struct request_queue *queue; /* request queue */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | |
| 547 | struct request *rq; /* current request */ |
| 548 | struct ide_drive_s *next; /* circular list of hwgroup drives */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | void *driver_data; /* extra driver data */ |
| 550 | struct hd_driveid *id; /* drive model identification info */ |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 551 | #ifdef CONFIG_IDE_PROC_FS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ |
| 553 | struct ide_settings_s *settings;/* /proc/ide/ drive settings */ |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 554 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 555 | struct hwif_s *hwif; /* actually (ide_hwif_t *) */ |
| 556 | |
| 557 | unsigned long sleep; /* sleep until this time */ |
| 558 | unsigned long service_start; /* time we started last request */ |
| 559 | unsigned long service_time; /* service time of last request */ |
| 560 | unsigned long timeout; /* max time to wait for irq */ |
| 561 | |
| 562 | special_t special; /* special action flags */ |
| 563 | select_t select; /* basic drive/head select reg value */ |
| 564 | |
| 565 | u8 keep_settings; /* restore settings after drive reset */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | u8 using_dma; /* disk is using dma for read/write */ |
| 567 | u8 retry_pio; /* retrying dma capable host in pio */ |
| 568 | u8 state; /* retry state */ |
| 569 | u8 waiting_for_dma; /* dma currently in progress */ |
| 570 | u8 unmask; /* okay to unmask other irqs */ |
| 571 | u8 bswap; /* byte swap data */ |
Jens Axboe | 3619348 | 2006-07-28 08:54:59 +0200 | [diff] [blame] | 572 | u8 noflush; /* don't attempt flushes */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | u8 dsc_overlap; /* DSC overlap */ |
| 574 | u8 nice1; /* give potential excess bandwidth */ |
| 575 | |
| 576 | unsigned present : 1; /* drive is physically present */ |
| 577 | unsigned dead : 1; /* device ejected hint */ |
| 578 | unsigned id_read : 1; /* 1=id read from disk 0 = synthetic */ |
| 579 | unsigned noprobe : 1; /* from: hdx=noprobe */ |
| 580 | unsigned removable : 1; /* 1 if need to do check_media_change */ |
| 581 | unsigned attach : 1; /* needed for removable devices */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | unsigned forced_geom : 1; /* 1 if hdx=c,h,s was given at boot */ |
| 583 | unsigned no_unmask : 1; /* disallow setting unmask bit */ |
| 584 | unsigned no_io_32bit : 1; /* disallow enabling 32bit I/O */ |
| 585 | unsigned atapi_overlap : 1; /* ATAPI overlap (not supported) */ |
| 586 | unsigned nice0 : 1; /* give obvious excess bandwidth */ |
| 587 | unsigned nice2 : 1; /* give a share in our own bandwidth */ |
| 588 | unsigned doorlocking : 1; /* for removable only: door lock/unlock works */ |
Bartlomiej Zolnierkiewicz | c223701 | 2007-10-16 22:29:58 +0200 | [diff] [blame] | 589 | unsigned nodma : 1; /* disallow DMA */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | unsigned autotune : 2; /* 0=default, 1=autotune, 2=noautotune */ |
| 591 | unsigned remap_0_to_1 : 1; /* 0=noremap, 1=remap 0->1 (for EZDrive) */ |
| 592 | unsigned blocked : 1; /* 1=powermanagment told us not to do anything, so sleep nicely */ |
| 593 | unsigned vdma : 1; /* 1=doing PIO over DMA 0=doing normal DMA */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | unsigned scsi : 1; /* 0=default, 1=ide-scsi emulation */ |
| 595 | unsigned sleeping : 1; /* 1=sleeping & sleep field valid */ |
| 596 | unsigned post_reset : 1; |
Bartlomiej Zolnierkiewicz | 7f8f48a | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 597 | unsigned udma33_warned : 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | |
Bartlomiej Zolnierkiewicz | 1497943 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 599 | u8 addressing; /* 0=28-bit, 1=48-bit, 2=48-bit doing 28-bit */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | u8 quirk_list; /* considered quirky, set for a specific host */ |
| 601 | u8 init_speed; /* transfer rate set at boot */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | u8 current_speed; /* current transfer rate set */ |
Suleiman Souhlal | 513daad | 2007-03-26 23:03:20 +0200 | [diff] [blame] | 603 | u8 desired_speed; /* desired transfer rate set */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | u8 dn; /* now wide spread use */ |
| 605 | u8 wcache; /* status of write cache */ |
| 606 | u8 acoustic; /* acoustic management */ |
| 607 | u8 media; /* disk, cdrom, tape, floppy, ... */ |
| 608 | u8 ctl; /* "normal" value for IDE_CONTROL_REG */ |
| 609 | u8 ready_stat; /* min status value for drive ready */ |
| 610 | u8 mult_count; /* current multiple sector setting */ |
| 611 | u8 mult_req; /* requested multiple sector setting */ |
| 612 | u8 tune_req; /* requested drive tuning setting */ |
| 613 | u8 io_32bit; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */ |
| 614 | u8 bad_wstat; /* used for ignoring WRERR_STAT */ |
| 615 | u8 nowerr; /* used for ignoring WRERR_STAT */ |
| 616 | u8 sect0; /* offset of first sector for DM6:DDO */ |
| 617 | u8 head; /* "real" number of heads */ |
| 618 | u8 sect; /* "real" sectors per track */ |
| 619 | u8 bios_head; /* BIOS/fdisk/LILO number of heads */ |
| 620 | u8 bios_sect; /* BIOS/fdisk/LILO sectors per track */ |
| 621 | |
| 622 | unsigned int bios_cyl; /* BIOS/fdisk/LILO number of cyls */ |
| 623 | unsigned int cyl; /* "real" number of cyls */ |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 624 | unsigned int drive_data; /* used by set_pio_mode/selectproc */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 625 | unsigned int failures; /* current failure count */ |
| 626 | unsigned int max_failures; /* maximum allowed failure count */ |
Alan Cox | dbe217a | 2006-06-25 05:47:44 -0700 | [diff] [blame] | 627 | u64 probed_capacity;/* initial reported media capacity (ide-cd only currently) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 628 | |
| 629 | u64 capacity64; /* total number of sectors */ |
| 630 | |
| 631 | int lun; /* logical unit */ |
| 632 | int crc_count; /* crc counter to reduce drive speed */ |
Hannes Reinecke | e3a59b4 | 2007-02-07 18:19:37 +0100 | [diff] [blame] | 633 | #ifdef CONFIG_BLK_DEV_IDEACPI |
| 634 | struct ide_acpi_drive_link *acpidata; |
| 635 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 636 | struct list_head list; |
| 637 | struct device gendev; |
Aleksey Makarov | f36d402 | 2006-01-09 15:59:27 -0800 | [diff] [blame] | 638 | struct completion gendev_rel_comp; /* to deal with device release() */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | } ide_drive_t; |
| 640 | |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 641 | #define to_ide_device(dev)container_of(dev, ide_drive_t, gendev) |
| 642 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | #define IDE_CHIPSET_PCI_MASK \ |
| 644 | ((1<<ide_pci)|(1<<ide_cmd646)|(1<<ide_ali14xx)) |
| 645 | #define IDE_CHIPSET_IS_PCI(c) ((IDE_CHIPSET_PCI_MASK >> (c)) & 1) |
| 646 | |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 647 | struct ide_port_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | |
| 649 | typedef struct hwif_s { |
| 650 | struct hwif_s *next; /* for linked-list in ide_hwgroup_t */ |
| 651 | struct hwif_s *mate; /* other hwif from same PCI chip */ |
| 652 | struct hwgroup_s *hwgroup; /* actually (ide_hwgroup_t *) */ |
| 653 | struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ |
| 654 | |
| 655 | char name[6]; /* name of interface, eg. "ide0" */ |
| 656 | |
| 657 | /* task file registers for pata and sata */ |
| 658 | unsigned long io_ports[IDE_NR_PORTS]; |
| 659 | unsigned long sata_scr[SATA_NR_PORTS]; |
| 660 | unsigned long sata_misc[SATA_NR_PORTS]; |
| 661 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 662 | ide_drive_t drives[MAX_DRIVES]; /* drive info */ |
| 663 | |
| 664 | u8 major; /* our major number */ |
| 665 | u8 index; /* 0 for ide0; 1 for ide1; ... */ |
| 666 | u8 channel; /* for dual-port chips: 0=primary, 1=secondary */ |
| 667 | u8 straight8; /* Alan's straight 8 check */ |
| 668 | u8 bus_state; /* power state of the IDE bus */ |
| 669 | |
David Miller | e95d9c6 | 2007-10-22 02:09:00 -0700 | [diff] [blame] | 670 | u32 host_flags; |
Bartlomiej Zolnierkiewicz | 6a824c9 | 2007-07-20 01:11:58 +0200 | [diff] [blame] | 671 | |
Bartlomiej Zolnierkiewicz | 4099d14 | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 672 | u8 pio_mask; |
| 673 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | u8 ultra_mask; |
| 675 | u8 mwdma_mask; |
| 676 | u8 swdma_mask; |
| 677 | |
Bartlomiej Zolnierkiewicz | 49521f9 | 2007-07-09 23:17:58 +0200 | [diff] [blame] | 678 | u8 cbl; /* cable type */ |
| 679 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | hwif_chipset_t chipset; /* sub-module for tuning.. */ |
| 681 | |
| 682 | struct pci_dev *pci_dev; /* for pci chipsets */ |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 683 | const struct ide_port_info *cds; /* chipset device struct */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | |
Bartlomiej Zolnierkiewicz | 18e181f | 2007-10-20 00:32:32 +0200 | [diff] [blame] | 685 | ide_ack_intr_t *ack_intr; |
| 686 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | void (*rw_disk)(ide_drive_t *, struct request *); |
| 688 | |
| 689 | #if 0 |
| 690 | ide_hwif_ops_t *hwifops; |
| 691 | #else |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 692 | /* routine to program host for PIO mode */ |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 693 | void (*set_pio_mode)(ide_drive_t *, const u8); |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 694 | /* routine to program host for DMA mode */ |
| 695 | void (*set_dma_mode)(ide_drive_t *, const u8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | /* tweaks hardware to select drive */ |
| 697 | void (*selectproc)(ide_drive_t *); |
| 698 | /* chipset polling based on hba specifics */ |
| 699 | int (*reset_poll)(ide_drive_t *); |
| 700 | /* chipset specific changes to default for device-hba resets */ |
| 701 | void (*pre_reset)(ide_drive_t *); |
| 702 | /* routine to reset controller after a disk reset */ |
| 703 | void (*resetproc)(ide_drive_t *); |
| 704 | /* special interrupt handling for shared pci interrupts */ |
| 705 | void (*intrproc)(ide_drive_t *); |
| 706 | /* special host masking for drive selection */ |
| 707 | void (*maskproc)(ide_drive_t *, int); |
| 708 | /* check host's drive quirk list */ |
| 709 | int (*quirkproc)(ide_drive_t *); |
| 710 | /* driver soft-power interface */ |
| 711 | int (*busproc)(ide_drive_t *, int); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 712 | #endif |
Sergei Shtylyov | b4e4436 | 2007-10-11 23:53:58 +0200 | [diff] [blame] | 713 | u8 (*mdma_filter)(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | 2d5eaa6 | 2007-05-10 00:01:08 +0200 | [diff] [blame] | 714 | u8 (*udma_filter)(ide_drive_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | |
Bartlomiej Zolnierkiewicz | fd9bb53 | 2007-10-20 00:32:31 +0200 | [diff] [blame] | 716 | void (*fixup)(struct hwif_s *); |
| 717 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | void (*ata_input_data)(ide_drive_t *, void *, u32); |
| 719 | void (*ata_output_data)(ide_drive_t *, void *, u32); |
| 720 | |
| 721 | void (*atapi_input_bytes)(ide_drive_t *, void *, u32); |
| 722 | void (*atapi_output_bytes)(ide_drive_t *, void *, u32); |
| 723 | |
| 724 | int (*dma_setup)(ide_drive_t *); |
| 725 | void (*dma_exec_cmd)(ide_drive_t *, u8); |
| 726 | void (*dma_start)(ide_drive_t *); |
| 727 | int (*ide_dma_end)(ide_drive_t *drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 728 | int (*ide_dma_on)(ide_drive_t *drive); |
Bartlomiej Zolnierkiewicz | 7469aaf | 2007-02-17 02:40:26 +0100 | [diff] [blame] | 729 | void (*dma_off_quietly)(ide_drive_t *drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 730 | int (*ide_dma_test_irq)(ide_drive_t *drive); |
Albert Lee | f0dd871 | 2007-02-17 02:40:21 +0100 | [diff] [blame] | 731 | void (*ide_dma_clear_irq)(ide_drive_t *drive); |
Bartlomiej Zolnierkiewicz | ccf3528 | 2007-02-17 02:40:26 +0100 | [diff] [blame] | 732 | void (*dma_host_on)(ide_drive_t *drive); |
Bartlomiej Zolnierkiewicz | 7469aaf | 2007-02-17 02:40:26 +0100 | [diff] [blame] | 733 | void (*dma_host_off)(ide_drive_t *drive); |
Sergei Shtylyov | 841d2a9 | 2007-07-09 23:17:54 +0200 | [diff] [blame] | 734 | void (*dma_lost_irq)(ide_drive_t *drive); |
Sergei Shtylyov | c283f5d | 2007-07-09 23:17:54 +0200 | [diff] [blame] | 735 | void (*dma_timeout)(ide_drive_t *drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 736 | |
| 737 | void (*OUTB)(u8 addr, unsigned long port); |
| 738 | void (*OUTBSYNC)(ide_drive_t *drive, u8 addr, unsigned long port); |
| 739 | void (*OUTW)(u16 addr, unsigned long port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | void (*OUTSW)(unsigned long port, void *addr, u32 count); |
| 741 | void (*OUTSL)(unsigned long port, void *addr, u32 count); |
| 742 | |
| 743 | u8 (*INB)(unsigned long port); |
| 744 | u16 (*INW)(unsigned long port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 745 | void (*INSW)(unsigned long port, void *addr, u32 count); |
| 746 | void (*INSL)(unsigned long port, void *addr, u32 count); |
| 747 | |
| 748 | /* dma physical region descriptor table (cpu view) */ |
| 749 | unsigned int *dmatable_cpu; |
| 750 | /* dma physical region descriptor table (dma view) */ |
| 751 | dma_addr_t dmatable_dma; |
| 752 | /* Scatter-gather list used to build the above */ |
| 753 | struct scatterlist *sg_table; |
| 754 | int sg_max_nents; /* Maximum number of entries in it */ |
| 755 | int sg_nents; /* Current number of entries in it */ |
| 756 | int sg_dma_direction; /* dma transfer direction */ |
| 757 | |
| 758 | /* data phase of the active command (currently only valid for PIO/DMA) */ |
| 759 | int data_phase; |
| 760 | |
| 761 | unsigned int nsect; |
| 762 | unsigned int nleft; |
Jens Axboe | 55c16a7 | 2007-07-25 08:13:56 +0200 | [diff] [blame] | 763 | struct scatterlist *cursg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | unsigned int cursg_ofs; |
| 765 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | int rqsize; /* max sectors per request */ |
| 767 | int irq; /* our irq number */ |
| 768 | |
| 769 | unsigned long dma_master; /* reference base addr dmabase */ |
| 770 | unsigned long dma_base; /* base addr for dma ports */ |
| 771 | unsigned long dma_command; /* dma command register */ |
| 772 | unsigned long dma_vendor1; /* dma vendor 1 register */ |
| 773 | unsigned long dma_status; /* dma status register */ |
| 774 | unsigned long dma_vendor3; /* dma vendor 3 register */ |
| 775 | unsigned long dma_prdtable; /* actual prd table address */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 776 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | unsigned long config_data; /* for use by chipset-specific code */ |
| 778 | unsigned long select_data; /* for use by chipset-specific code */ |
| 779 | |
Sergei Shtylylov | 020e322 | 2006-10-03 01:14:13 -0700 | [diff] [blame] | 780 | unsigned long extra_base; /* extra addr for dma ports */ |
| 781 | unsigned extra_ports; /* number of extra dma ports */ |
| 782 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 783 | unsigned noprobe : 1; /* don't probe for this interface */ |
| 784 | unsigned present : 1; /* this interface exists */ |
| 785 | unsigned hold : 1; /* this interface is always present */ |
| 786 | unsigned serialized : 1; /* serialized all channel operation */ |
| 787 | unsigned sharing_irq: 1; /* 1 = sharing irq with another hwif */ |
| 788 | unsigned reset : 1; /* reset after probe */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 789 | unsigned auto_poll : 1; /* supports nop auto-poll */ |
| 790 | unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */ |
Kumar Gala | 208a08f | 2006-03-24 03:18:21 -0800 | [diff] [blame] | 791 | unsigned no_io_32bit : 1; /* 1 = can not do 32-bit IO ops */ |
Bartlomiej Zolnierkiewicz | 2ad1e55 | 2007-02-17 02:40:25 +0100 | [diff] [blame] | 792 | unsigned mmio : 1; /* host uses MMIO */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | |
| 794 | struct device gendev; |
Aleksey Makarov | f36d402 | 2006-01-09 15:59:27 -0800 | [diff] [blame] | 795 | struct completion gendev_rel_comp; /* To deal with device release() */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 796 | |
| 797 | void *hwif_data; /* extra hwif data */ |
| 798 | |
| 799 | unsigned dma; |
Hannes Reinecke | e3a59b4 | 2007-02-07 18:19:37 +0100 | [diff] [blame] | 800 | |
| 801 | #ifdef CONFIG_BLK_DEV_IDEACPI |
| 802 | struct ide_acpi_hwif_link *acpidata; |
| 803 | #endif |
Ravikiran G Thirumalai | 22fc6ec | 2006-01-08 01:01:27 -0800 | [diff] [blame] | 804 | } ____cacheline_internodealigned_in_smp ide_hwif_t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | |
| 806 | /* |
| 807 | * internal ide interrupt handler type |
| 808 | */ |
| 809 | typedef ide_startstop_t (ide_pre_handler_t)(ide_drive_t *, struct request *); |
| 810 | typedef ide_startstop_t (ide_handler_t)(ide_drive_t *); |
| 811 | typedef int (ide_expiry_t)(ide_drive_t *); |
| 812 | |
| 813 | typedef struct hwgroup_s { |
| 814 | /* irq handler, if active */ |
| 815 | ide_startstop_t (*handler)(ide_drive_t *); |
| 816 | /* irq handler, suspended if active */ |
| 817 | ide_startstop_t (*handler_save)(ide_drive_t *); |
| 818 | /* BOOL: protects all fields below */ |
| 819 | volatile int busy; |
| 820 | /* BOOL: wake us up on timer expiry */ |
| 821 | unsigned int sleeping : 1; |
| 822 | /* BOOL: polling active & poll_timeout field valid */ |
| 823 | unsigned int polling : 1; |
Alan Cox | 913759a | 2006-10-03 01:14:33 -0700 | [diff] [blame] | 824 | /* BOOL: in a polling reset situation. Must not trigger another reset yet */ |
| 825 | unsigned int resetting : 1; |
| 826 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 827 | /* current drive */ |
| 828 | ide_drive_t *drive; |
| 829 | /* ptr to current hwif in linked-list */ |
| 830 | ide_hwif_t *hwif; |
| 831 | |
| 832 | /* for pci chipsets */ |
| 833 | struct pci_dev *pci_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 834 | |
| 835 | /* current request */ |
| 836 | struct request *rq; |
| 837 | /* failsafe timer */ |
| 838 | struct timer_list timer; |
| 839 | /* local copy of current write rq */ |
| 840 | struct request wrq; |
| 841 | /* timeout value during long polls */ |
| 842 | unsigned long poll_timeout; |
| 843 | /* queried upon timeouts */ |
| 844 | int (*expiry)(ide_drive_t *); |
| 845 | /* ide_system_bus_speed */ |
| 846 | int pio_clock; |
Suleiman Souhlal | 2345031 | 2007-04-10 22:38:37 +0200 | [diff] [blame] | 847 | int req_gen; |
| 848 | int req_gen_timer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 849 | |
| 850 | unsigned char cmd_buf[4]; |
| 851 | } ide_hwgroup_t; |
| 852 | |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 853 | typedef struct ide_driver_s ide_driver_t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 854 | |
Matthias Kaehlcke | f9383c4 | 2007-07-09 23:17:56 +0200 | [diff] [blame] | 855 | extern struct mutex ide_setting_mtx; |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 856 | |
| 857 | int set_io_32bit(ide_drive_t *, int); |
| 858 | int set_pio_mode(ide_drive_t *, int); |
| 859 | int set_using_dma(ide_drive_t *, int); |
| 860 | |
| 861 | #ifdef CONFIG_IDE_PROC_FS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | /* |
| 863 | * configurable drive settings |
| 864 | */ |
| 865 | |
| 866 | #define TYPE_INT 0 |
Bartlomiej Zolnierkiewicz | 1497943 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 867 | #define TYPE_BYTE 1 |
| 868 | #define TYPE_SHORT 2 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 869 | |
| 870 | #define SETTING_READ (1 << 0) |
| 871 | #define SETTING_WRITE (1 << 1) |
| 872 | #define SETTING_RW (SETTING_READ | SETTING_WRITE) |
| 873 | |
| 874 | typedef int (ide_procset_t)(ide_drive_t *, int); |
| 875 | typedef struct ide_settings_s { |
| 876 | char *name; |
| 877 | int rw; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 878 | int data_type; |
| 879 | int min; |
| 880 | int max; |
| 881 | int mul_factor; |
| 882 | int div_factor; |
| 883 | void *data; |
| 884 | ide_procset_t *set; |
| 885 | int auto_remove; |
| 886 | struct ide_settings_s *next; |
| 887 | } ide_settings_t; |
| 888 | |
Bartlomiej Zolnierkiewicz | 1497943 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 889 | int ide_add_setting(ide_drive_t *, const char *, int, int, int, int, int, int, void *, ide_procset_t *set); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 890 | |
| 891 | /* |
| 892 | * /proc/ide interface |
| 893 | */ |
| 894 | typedef struct { |
| 895 | const char *name; |
| 896 | mode_t mode; |
| 897 | read_proc_t *read_proc; |
| 898 | write_proc_t *write_proc; |
| 899 | } ide_proc_entry_t; |
| 900 | |
Bartlomiej Zolnierkiewicz | ecfd80e | 2007-05-10 00:01:09 +0200 | [diff] [blame] | 901 | void proc_ide_create(void); |
| 902 | void proc_ide_destroy(void); |
Bartlomiej Zolnierkiewicz | 5cbf79c | 2007-05-10 00:01:11 +0200 | [diff] [blame] | 903 | void ide_proc_register_port(ide_hwif_t *); |
| 904 | void ide_proc_unregister_port(ide_hwif_t *); |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 905 | void ide_proc_register_driver(ide_drive_t *, ide_driver_t *); |
| 906 | void ide_proc_unregister_driver(ide_drive_t *, ide_driver_t *); |
| 907 | |
| 908 | void ide_add_generic_settings(ide_drive_t *); |
| 909 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 910 | read_proc_t proc_ide_read_capacity; |
| 911 | read_proc_t proc_ide_read_geometry; |
| 912 | |
| 913 | #ifdef CONFIG_BLK_DEV_IDEPCI |
| 914 | void ide_pci_create_host_proc(const char *, get_info_t *); |
| 915 | #endif |
| 916 | |
| 917 | /* |
| 918 | * Standard exit stuff: |
| 919 | */ |
| 920 | #define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) \ |
| 921 | { \ |
| 922 | len -= off; \ |
| 923 | if (len < count) { \ |
| 924 | *eof = 1; \ |
| 925 | if (len <= 0) \ |
| 926 | return 0; \ |
| 927 | } else \ |
| 928 | len = count; \ |
| 929 | *start = page + off; \ |
| 930 | return len; \ |
| 931 | } |
| 932 | #else |
Bartlomiej Zolnierkiewicz | ecfd80e | 2007-05-10 00:01:09 +0200 | [diff] [blame] | 933 | static inline void proc_ide_create(void) { ; } |
| 934 | static inline void proc_ide_destroy(void) { ; } |
Bartlomiej Zolnierkiewicz | 5cbf79c | 2007-05-10 00:01:11 +0200 | [diff] [blame] | 935 | static inline void ide_proc_register_port(ide_hwif_t *hwif) { ; } |
| 936 | static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; } |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 937 | static inline void ide_proc_register_driver(ide_drive_t *drive, ide_driver_t *driver) { ; } |
| 938 | static inline void ide_proc_unregister_driver(ide_drive_t *drive, ide_driver_t *driver) { ; } |
| 939 | static inline void ide_add_generic_settings(ide_drive_t *drive) { ; } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 940 | #define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) return 0; |
| 941 | #endif |
| 942 | |
| 943 | /* |
| 944 | * Power Management step value (rq->pm->pm_step). |
| 945 | * |
| 946 | * The step value starts at 0 (ide_pm_state_start_suspend) for a |
| 947 | * suspend operation or 1000 (ide_pm_state_start_resume) for a |
| 948 | * resume operation. |
| 949 | * |
| 950 | * For each step, the core calls the subdriver start_power_step() first. |
| 951 | * This can return: |
| 952 | * - ide_stopped : In this case, the core calls us back again unless |
| 953 | * step have been set to ide_power_state_completed. |
| 954 | * - ide_started : In this case, the channel is left busy until an |
| 955 | * async event (interrupt) occurs. |
| 956 | * Typically, start_power_step() will issue a taskfile request with |
| 957 | * do_rw_taskfile(). |
| 958 | * |
| 959 | * Upon reception of the interrupt, the core will call complete_power_step() |
| 960 | * with the error code if any. This routine should update the step value |
| 961 | * and return. It should not start a new request. The core will call |
| 962 | * start_power_step for the new step value, unless step have been set to |
| 963 | * ide_power_state_completed. |
| 964 | * |
| 965 | * Subdrivers are expected to define their own additional power |
| 966 | * steps from 1..999 for suspend and from 1001..1999 for resume, |
| 967 | * other values are reserved for future use. |
| 968 | */ |
| 969 | |
| 970 | enum { |
| 971 | ide_pm_state_completed = -1, |
| 972 | ide_pm_state_start_suspend = 0, |
| 973 | ide_pm_state_start_resume = 1000, |
| 974 | }; |
| 975 | |
| 976 | /* |
| 977 | * Subdrivers support. |
Laurent Riffard | 4ef3b8f | 2005-11-18 22:15:40 +0100 | [diff] [blame] | 978 | * |
| 979 | * The gendriver.owner field should be set to the module owner of this driver. |
| 980 | * The gendriver.name field should be set to the name of this driver |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 981 | */ |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 982 | struct ide_driver_s { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 983 | const char *version; |
| 984 | u8 media; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 985 | unsigned supports_dsc_overlap : 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 986 | ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t); |
| 987 | int (*end_request)(ide_drive_t *, int, int); |
| 988 | ide_startstop_t (*error)(ide_drive_t *, struct request *rq, u8, u8); |
| 989 | ide_startstop_t (*abort)(ide_drive_t *, struct request *rq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 990 | struct device_driver gen_driver; |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 991 | int (*probe)(ide_drive_t *); |
| 992 | void (*remove)(ide_drive_t *); |
Lee Trager | 0d2157f | 2007-06-08 15:14:30 +0200 | [diff] [blame] | 993 | void (*resume)(ide_drive_t *); |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 994 | void (*shutdown)(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 995 | #ifdef CONFIG_IDE_PROC_FS |
| 996 | ide_proc_entry_t *proc; |
| 997 | #endif |
| 998 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 1000 | #define to_ide_driver(drv) container_of(drv, ide_driver_t, gen_driver) |
| 1001 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1002 | int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, unsigned, unsigned long); |
| 1003 | |
| 1004 | /* |
| 1005 | * ide_hwifs[] is the master data structure used to keep track |
| 1006 | * of just about everything in ide.c. Whenever possible, routines |
| 1007 | * should be using pointers to a drive (ide_drive_t *) or |
| 1008 | * pointers to a hwif (ide_hwif_t *), rather than indexing this |
| 1009 | * structure directly (the allocation/layout may change!). |
| 1010 | * |
| 1011 | */ |
| 1012 | #ifndef _IDE_C |
| 1013 | extern ide_hwif_t ide_hwifs[]; /* master data repository */ |
| 1014 | #endif |
| 1015 | extern int noautodma; |
| 1016 | |
| 1017 | extern int ide_end_request (ide_drive_t *drive, int uptodate, int nrsecs); |
Alan Cox | dbe217a | 2006-06-25 05:47:44 -0700 | [diff] [blame] | 1018 | int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq, |
| 1019 | int uptodate, int nr_sectors); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1020 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1021 | extern void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry); |
| 1022 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1023 | extern void ide_execute_command(ide_drive_t *, task_ioreg_t cmd, ide_handler_t *, unsigned int, ide_expiry_t *); |
| 1024 | |
| 1025 | ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8); |
| 1026 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1027 | ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat); |
| 1028 | |
| 1029 | ide_startstop_t __ide_abort(ide_drive_t *, struct request *); |
| 1030 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1031 | extern ide_startstop_t ide_abort(ide_drive_t *, const char *); |
| 1032 | |
| 1033 | extern void ide_fix_driveid(struct hd_driveid *); |
Bartlomiej Zolnierkiewicz | 0174511 | 2007-11-05 21:42:29 +0100 | [diff] [blame] | 1034 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | extern void ide_fixstring(u8 *, const int, const int); |
| 1036 | |
Bartlomiej Zolnierkiewicz | 74af21c | 2007-10-13 17:47:49 +0200 | [diff] [blame] | 1037 | int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1038 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1039 | extern ide_startstop_t ide_do_reset (ide_drive_t *); |
| 1040 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1041 | extern void ide_init_drive_cmd (struct request *rq); |
| 1042 | |
| 1043 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1044 | * "action" parameter type for ide_do_drive_cmd() below. |
| 1045 | */ |
| 1046 | typedef enum { |
| 1047 | ide_wait, /* insert rq at end of list, and wait for it */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1048 | ide_preempt, /* insert rq in front of current request */ |
| 1049 | ide_head_wait, /* insert rq in front of current request and wait for it */ |
| 1050 | ide_end /* insert rq at end of list, but don't wait for it */ |
| 1051 | } ide_action_t; |
| 1052 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1053 | extern int ide_do_drive_cmd(ide_drive_t *, struct request *, ide_action_t); |
| 1054 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1055 | extern void ide_end_drive_cmd(ide_drive_t *, u8, u8); |
| 1056 | |
| 1057 | /* |
| 1058 | * Issue ATA command and wait for completion. |
| 1059 | * Use for implementing commands in kernel |
| 1060 | * |
| 1061 | * (ide_drive_t *drive, u8 cmd, u8 nsect, u8 feature, u8 sectors, u8 *buf) |
| 1062 | */ |
| 1063 | extern int ide_wait_cmd(ide_drive_t *, u8, u8, u8, u8, u8 *); |
| 1064 | |
| 1065 | typedef struct ide_task_s { |
| 1066 | /* |
| 1067 | * struct hd_drive_task_hdr tf; |
| 1068 | * task_struct_t tf; |
| 1069 | * struct hd_drive_hob_hdr hobf; |
| 1070 | * hob_struct_t hobf; |
| 1071 | */ |
| 1072 | task_ioreg_t tfRegister[8]; |
| 1073 | task_ioreg_t hobRegister[8]; |
| 1074 | ide_reg_valid_t tf_out_flags; |
| 1075 | ide_reg_valid_t tf_in_flags; |
| 1076 | int data_phase; |
| 1077 | int command_type; |
| 1078 | ide_pre_handler_t *prehandler; |
| 1079 | ide_handler_t *handler; |
| 1080 | struct request *rq; /* copy of request */ |
| 1081 | void *special; /* valid_t generally */ |
| 1082 | } ide_task_t; |
| 1083 | |
| 1084 | extern u32 ide_read_24(ide_drive_t *); |
| 1085 | |
| 1086 | extern void SELECT_DRIVE(ide_drive_t *); |
| 1087 | extern void SELECT_INTERRUPT(ide_drive_t *); |
| 1088 | extern void SELECT_MASK(ide_drive_t *, int); |
| 1089 | extern void QUIRK_LIST(ide_drive_t *); |
| 1090 | |
| 1091 | extern int drive_is_ready(ide_drive_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1092 | |
| 1093 | /* |
| 1094 | * taskfile io for disks for now...and builds request from ide_ioctl |
| 1095 | */ |
| 1096 | extern ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *); |
| 1097 | |
| 1098 | /* |
| 1099 | * Special Flagged Register Validation Caller |
| 1100 | */ |
| 1101 | extern ide_startstop_t flagged_taskfile(ide_drive_t *, ide_task_t *); |
| 1102 | |
| 1103 | extern ide_startstop_t set_multmode_intr(ide_drive_t *); |
| 1104 | extern ide_startstop_t set_geometry_intr(ide_drive_t *); |
| 1105 | extern ide_startstop_t recal_intr(ide_drive_t *); |
| 1106 | extern ide_startstop_t task_no_data_intr(ide_drive_t *); |
| 1107 | extern ide_startstop_t task_in_intr(ide_drive_t *); |
| 1108 | extern ide_startstop_t pre_task_out_intr(ide_drive_t *, struct request *); |
| 1109 | |
| 1110 | extern int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *); |
| 1111 | |
| 1112 | int ide_taskfile_ioctl(ide_drive_t *, unsigned int, unsigned long); |
| 1113 | int ide_cmd_ioctl(ide_drive_t *, unsigned int, unsigned long); |
| 1114 | int ide_task_ioctl(ide_drive_t *, unsigned int, unsigned long); |
| 1115 | |
| 1116 | extern int system_bus_clock(void); |
| 1117 | |
| 1118 | extern int ide_driveid_update(ide_drive_t *); |
| 1119 | extern int ide_ata66_check(ide_drive_t *, ide_task_t *); |
| 1120 | extern int ide_config_drive_speed(ide_drive_t *, u8); |
| 1121 | extern u8 eighty_ninty_three (ide_drive_t *); |
| 1122 | extern int set_transfer(ide_drive_t *, ide_task_t *); |
| 1123 | extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *); |
| 1124 | |
| 1125 | extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout); |
| 1126 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1127 | extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout); |
| 1128 | |
| 1129 | extern int ide_spin_wait_hwgroup(ide_drive_t *); |
| 1130 | extern void ide_timer_expiry(unsigned long); |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1131 | extern irqreturn_t ide_intr(int irq, void *dev_id); |
Jens Axboe | 165125e | 2007-07-24 09:28:11 +0200 | [diff] [blame] | 1132 | extern void do_ide_request(struct request_queue *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1133 | |
| 1134 | void ide_init_disk(struct gendisk *, ide_drive_t *); |
| 1135 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1136 | extern int ideprobe_init(void); |
| 1137 | |
Bartlomiej Zolnierkiewicz | 6d208b3 | 2007-05-10 00:01:11 +0200 | [diff] [blame] | 1138 | #ifdef CONFIG_IDEPCI_PCIBUS_ORDER |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1139 | extern void ide_scan_pcibus(int scan_direction) __init; |
Greg Kroah-Hartman | 725522b | 2007-01-15 11:50:02 -0800 | [diff] [blame] | 1140 | extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name); |
| 1141 | #define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME) |
Bartlomiej Zolnierkiewicz | 6d208b3 | 2007-05-10 00:01:11 +0200 | [diff] [blame] | 1142 | #else |
| 1143 | #define ide_pci_register_driver(d) pci_register_driver(d) |
| 1144 | #endif |
| 1145 | |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 1146 | void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, u8 *); |
| 1147 | void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1148 | |
| 1149 | extern void default_hwif_iops(ide_hwif_t *); |
| 1150 | extern void default_hwif_mmiops(ide_hwif_t *); |
| 1151 | extern void default_hwif_transport(ide_hwif_t *); |
| 1152 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1153 | typedef struct ide_pci_enablebit_s { |
| 1154 | u8 reg; /* byte pci reg holding the enable-bit */ |
| 1155 | u8 mask; /* mask to isolate the enable-bit */ |
| 1156 | u8 val; /* value of masked reg when "enabled" */ |
| 1157 | } ide_pci_enablebit_t; |
| 1158 | |
| 1159 | enum { |
| 1160 | /* Uses ISA control ports not PCI ones. */ |
Bartlomiej Zolnierkiewicz | a5d8c5c | 2007-07-20 01:11:55 +0200 | [diff] [blame] | 1161 | IDE_HFLAG_ISA_PORTS = (1 << 0), |
Bartlomiej Zolnierkiewicz | 6a824c9 | 2007-07-20 01:11:58 +0200 | [diff] [blame] | 1162 | /* single port device */ |
Bartlomiej Zolnierkiewicz | a5d8c5c | 2007-07-20 01:11:55 +0200 | [diff] [blame] | 1163 | IDE_HFLAG_SINGLE = (1 << 1), |
Bartlomiej Zolnierkiewicz | 6a824c9 | 2007-07-20 01:11:58 +0200 | [diff] [blame] | 1164 | /* don't use legacy PIO blacklist */ |
| 1165 | IDE_HFLAG_PIO_NO_BLACKLIST = (1 << 2), |
| 1166 | /* don't use conservative PIO "downgrade" */ |
| 1167 | IDE_HFLAG_PIO_NO_DOWNGRADE = (1 << 3), |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 1168 | /* use PIO8/9 for prefetch off/on */ |
| 1169 | IDE_HFLAG_ABUSE_PREFETCH = (1 << 4), |
| 1170 | /* use PIO6/7 for fast-devsel off/on */ |
| 1171 | IDE_HFLAG_ABUSE_FAST_DEVSEL = (1 << 5), |
| 1172 | /* use 100-102 and 200-202 PIO values to set DMA modes */ |
| 1173 | IDE_HFLAG_ABUSE_DMA_MODES = (1 << 6), |
Bartlomiej Zolnierkiewicz | aedea59 | 2007-10-13 17:47:50 +0200 | [diff] [blame] | 1174 | /* |
| 1175 | * keep DMA setting when programming PIO mode, may be used only |
| 1176 | * for hosts which have separate PIO and DMA timings (ie. PMAC) |
| 1177 | */ |
| 1178 | IDE_HFLAG_SET_PIO_MODE_KEEP_DMA = (1 << 7), |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 1179 | /* program host for the transfer mode after programming device */ |
| 1180 | IDE_HFLAG_POST_SET_MODE = (1 << 8), |
| 1181 | /* don't program host/device for the transfer mode ("smart" hosts) */ |
| 1182 | IDE_HFLAG_NO_SET_MODE = (1 << 9), |
Bartlomiej Zolnierkiewicz | 0ae2e17 | 2007-10-16 22:29:55 +0200 | [diff] [blame] | 1183 | /* trust BIOS for programming chipset/device for DMA */ |
| 1184 | IDE_HFLAG_TRUST_BIOS_FOR_DMA = (1 << 10), |
| 1185 | /* host uses VDMA */ |
| 1186 | IDE_HFLAG_VDMA = (1 << 11), |
Bartlomiej Zolnierkiewicz | 33c1002 | 2007-10-19 00:30:06 +0200 | [diff] [blame] | 1187 | /* ATAPI DMA is unsupported */ |
| 1188 | IDE_HFLAG_NO_ATAPI_DMA = (1 << 12), |
Bartlomiej Zolnierkiewicz | 7cab14a | 2007-10-19 00:30:06 +0200 | [diff] [blame] | 1189 | /* set if host is a "bootable" controller */ |
| 1190 | IDE_HFLAG_BOOTABLE = (1 << 13), |
Bartlomiej Zolnierkiewicz | 47b6878 | 2007-10-19 00:30:06 +0200 | [diff] [blame] | 1191 | /* host doesn't support DMA */ |
| 1192 | IDE_HFLAG_NO_DMA = (1 << 14), |
| 1193 | /* check if host is PCI IDE device before allowing DMA */ |
| 1194 | IDE_HFLAG_NO_AUTODMA = (1 << 15), |
Bartlomiej Zolnierkiewicz | 9ffcf36 | 2007-10-19 00:30:07 +0200 | [diff] [blame] | 1195 | /* host is CS5510/CS5520 */ |
| 1196 | IDE_HFLAG_CS5520 = (1 << 16), |
Bartlomiej Zolnierkiewicz | 238e4f1 | 2007-10-19 00:30:07 +0200 | [diff] [blame] | 1197 | /* no LBA48 */ |
| 1198 | IDE_HFLAG_NO_LBA48 = (1 << 17), |
| 1199 | /* no LBA48 DMA */ |
| 1200 | IDE_HFLAG_NO_LBA48_DMA = (1 << 18), |
Bartlomiej Zolnierkiewicz | ed67b92 | 2007-10-19 00:30:10 +0200 | [diff] [blame] | 1201 | /* data FIFO is cleared by an error */ |
| 1202 | IDE_HFLAG_ERROR_STOPS_FIFO = (1 << 19), |
Bartlomiej Zolnierkiewicz | 1c51361 | 2007-10-19 00:30:10 +0200 | [diff] [blame] | 1203 | /* serialize ports */ |
| 1204 | IDE_HFLAG_SERIALIZE = (1 << 20), |
Bartlomiej Zolnierkiewicz | 3985ee3 | 2007-10-19 00:30:11 +0200 | [diff] [blame] | 1205 | /* use legacy IRQs */ |
| 1206 | IDE_HFLAG_LEGACY_IRQS = (1 << 21), |
Bartlomiej Zolnierkiewicz | 8acf28c | 2007-10-20 00:32:30 +0200 | [diff] [blame] | 1207 | /* force use of legacy IRQs */ |
| 1208 | IDE_HFLAG_FORCE_LEGACY_IRQS = (1 << 22), |
Bartlomiej Zolnierkiewicz | 272a370 | 2007-10-20 00:32:30 +0200 | [diff] [blame] | 1209 | /* limit LBA48 requests to 256 sectors */ |
| 1210 | IDE_HFLAG_RQSIZE_256 = (1 << 23), |
Bartlomiej Zolnierkiewicz | caea760 | 2007-10-20 00:32:30 +0200 | [diff] [blame] | 1211 | /* use 32-bit I/O ops */ |
| 1212 | IDE_HFLAG_IO_32BIT = (1 << 24), |
| 1213 | /* unmask IRQs */ |
| 1214 | IDE_HFLAG_UNMASK_IRQS = (1 << 25), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1215 | }; |
| 1216 | |
Bartlomiej Zolnierkiewicz | 7cab14a | 2007-10-19 00:30:06 +0200 | [diff] [blame] | 1217 | #ifdef CONFIG_BLK_DEV_OFFBOARD |
| 1218 | # define IDE_HFLAG_OFF_BOARD IDE_HFLAG_BOOTABLE |
| 1219 | #else |
| 1220 | # define IDE_HFLAG_OFF_BOARD 0 |
| 1221 | #endif |
| 1222 | |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 1223 | struct ide_port_info { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1224 | char *name; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1225 | unsigned int (*init_chipset)(struct pci_dev *, const char *); |
| 1226 | void (*init_iops)(ide_hwif_t *); |
| 1227 | void (*init_hwif)(ide_hwif_t *); |
| 1228 | void (*init_dma)(ide_hwif_t *, unsigned long); |
| 1229 | void (*fixup)(ide_hwif_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1230 | ide_pci_enablebit_t enablebits[2]; |
Bartlomiej Zolnierkiewicz | 528a572 | 2007-10-20 00:32:30 +0200 | [diff] [blame] | 1231 | hwif_chipset_t chipset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1232 | unsigned int extra; |
Bartlomiej Zolnierkiewicz | 9ffcf36 | 2007-10-19 00:30:07 +0200 | [diff] [blame] | 1233 | u32 host_flags; |
Bartlomiej Zolnierkiewicz | 4099d14 | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 1234 | u8 pio_mask; |
Bartlomiej Zolnierkiewicz | 5f8b6c3 | 2007-10-19 00:30:07 +0200 | [diff] [blame] | 1235 | u8 swdma_mask; |
| 1236 | u8 mwdma_mask; |
Bartlomiej Zolnierkiewicz | 1813720 | 2007-05-10 00:01:07 +0200 | [diff] [blame] | 1237 | u8 udma_mask; |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 1238 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1239 | |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 1240 | int ide_setup_pci_device(struct pci_dev *, const struct ide_port_info *); |
| 1241 | int ide_setup_pci_devices(struct pci_dev *, struct pci_dev *, const struct ide_port_info *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1242 | |
| 1243 | void ide_map_sg(ide_drive_t *, struct request *); |
| 1244 | void ide_init_sg_cmd(ide_drive_t *, struct request *); |
| 1245 | |
| 1246 | #define BAD_DMA_DRIVE 0 |
| 1247 | #define GOOD_DMA_DRIVE 1 |
| 1248 | |
Jordan Crouse | 65e5f2e | 2005-12-15 02:16:18 +0100 | [diff] [blame] | 1249 | struct drive_list_entry { |
| 1250 | const char *id_model; |
| 1251 | const char *id_firmware; |
| 1252 | }; |
| 1253 | |
| 1254 | int ide_in_drive_list(struct hd_driveid *, const struct drive_list_entry *); |
Bartlomiej Zolnierkiewicz | a5b7e70 | 2007-08-20 22:42:56 +0200 | [diff] [blame] | 1255 | |
| 1256 | #ifdef CONFIG_BLK_DEV_IDEDMA |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1257 | int __ide_dma_bad_drive(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | 3ab7efe | 2007-12-12 23:31:58 +0100 | [diff] [blame] | 1258 | int ide_id_dma_bug(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | 7670df7 | 2007-10-11 23:53:59 +0200 | [diff] [blame] | 1259 | |
| 1260 | u8 ide_find_dma_mode(ide_drive_t *, u8); |
| 1261 | |
| 1262 | static inline u8 ide_max_dma_mode(ide_drive_t *drive) |
| 1263 | { |
| 1264 | return ide_find_dma_mode(drive, XFER_UDMA_6); |
| 1265 | } |
| 1266 | |
Bartlomiej Zolnierkiewicz | 7469aaf | 2007-02-17 02:40:26 +0100 | [diff] [blame] | 1267 | void ide_dma_off(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | 3608b5d | 2007-02-17 02:40:26 +0100 | [diff] [blame] | 1268 | int ide_set_dma(ide_drive_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1269 | ide_startstop_t ide_dma_intr(ide_drive_t *); |
| 1270 | |
| 1271 | #ifdef CONFIG_BLK_DEV_IDEDMA_PCI |
| 1272 | extern int ide_build_sglist(ide_drive_t *, struct request *); |
| 1273 | extern int ide_build_dmatable(ide_drive_t *, struct request *); |
| 1274 | extern void ide_destroy_dmatable(ide_drive_t *); |
| 1275 | extern int ide_release_dma(ide_hwif_t *); |
| 1276 | extern void ide_setup_dma(ide_hwif_t *, unsigned long, unsigned int); |
| 1277 | |
Bartlomiej Zolnierkiewicz | 7469aaf | 2007-02-17 02:40:26 +0100 | [diff] [blame] | 1278 | void ide_dma_host_off(ide_drive_t *); |
| 1279 | void ide_dma_off_quietly(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | ccf3528 | 2007-02-17 02:40:26 +0100 | [diff] [blame] | 1280 | void ide_dma_host_on(ide_drive_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1281 | extern int __ide_dma_on(ide_drive_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1282 | extern int ide_dma_setup(ide_drive_t *); |
| 1283 | extern void ide_dma_start(ide_drive_t *); |
| 1284 | extern int __ide_dma_end(ide_drive_t *); |
Sergei Shtylyov | 841d2a9 | 2007-07-09 23:17:54 +0200 | [diff] [blame] | 1285 | extern void ide_dma_lost_irq(ide_drive_t *); |
Sergei Shtylyov | c283f5d | 2007-07-09 23:17:54 +0200 | [diff] [blame] | 1286 | extern void ide_dma_timeout(ide_drive_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1287 | #endif /* CONFIG_BLK_DEV_IDEDMA_PCI */ |
| 1288 | |
| 1289 | #else |
Bartlomiej Zolnierkiewicz | 3ab7efe | 2007-12-12 23:31:58 +0100 | [diff] [blame] | 1290 | static inline int ide_id_dma_bug(ide_drive_t *drive) { return 0; } |
Bartlomiej Zolnierkiewicz | 7670df7 | 2007-10-11 23:53:59 +0200 | [diff] [blame] | 1291 | static inline u8 ide_find_dma_mode(ide_drive_t *drive, u8 speed) { return 0; } |
Bartlomiej Zolnierkiewicz | 2d5eaa6 | 2007-05-10 00:01:08 +0200 | [diff] [blame] | 1292 | static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; } |
Bartlomiej Zolnierkiewicz | 7469aaf | 2007-02-17 02:40:26 +0100 | [diff] [blame] | 1293 | static inline void ide_dma_off(ide_drive_t *drive) { ; } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1294 | static inline void ide_dma_verbose(ide_drive_t *drive) { ; } |
Bartlomiej Zolnierkiewicz | 3608b5d | 2007-02-17 02:40:26 +0100 | [diff] [blame] | 1295 | static inline int ide_set_dma(ide_drive_t *drive) { return 1; } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1296 | #endif /* CONFIG_BLK_DEV_IDEDMA */ |
| 1297 | |
| 1298 | #ifndef CONFIG_BLK_DEV_IDEDMA_PCI |
| 1299 | static inline void ide_release_dma(ide_hwif_t *drive) {;} |
| 1300 | #endif |
| 1301 | |
Hannes Reinecke | e3a59b4 | 2007-02-07 18:19:37 +0100 | [diff] [blame] | 1302 | #ifdef CONFIG_BLK_DEV_IDEACPI |
| 1303 | extern int ide_acpi_exec_tfs(ide_drive_t *drive); |
| 1304 | extern void ide_acpi_get_timing(ide_hwif_t *hwif); |
| 1305 | extern void ide_acpi_push_timing(ide_hwif_t *hwif); |
| 1306 | extern void ide_acpi_init(ide_hwif_t *hwif); |
Shaohua Li | 5e32132 | 2007-10-11 23:53:58 +0200 | [diff] [blame] | 1307 | extern void ide_acpi_set_state(ide_hwif_t *hwif, int on); |
Hannes Reinecke | e3a59b4 | 2007-02-07 18:19:37 +0100 | [diff] [blame] | 1308 | #else |
| 1309 | static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; } |
| 1310 | static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; } |
| 1311 | static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; } |
| 1312 | static inline void ide_acpi_init(ide_hwif_t *hwif) { ; } |
Shaohua Li | 5e32132 | 2007-10-11 23:53:58 +0200 | [diff] [blame] | 1313 | static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {} |
Hannes Reinecke | e3a59b4 | 2007-02-07 18:19:37 +0100 | [diff] [blame] | 1314 | #endif |
| 1315 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1316 | extern int ide_hwif_request_regions(ide_hwif_t *hwif); |
| 1317 | extern void ide_hwif_release_regions(ide_hwif_t* hwif); |
| 1318 | extern void ide_unregister (unsigned int index); |
| 1319 | |
| 1320 | void ide_register_region(struct gendisk *); |
| 1321 | void ide_unregister_region(struct gendisk *); |
| 1322 | |
| 1323 | void ide_undecoded_slave(ide_hwif_t *); |
| 1324 | |
Bartlomiej Zolnierkiewicz | 8447d9d | 2007-10-20 00:32:31 +0200 | [diff] [blame] | 1325 | int ide_device_add(u8 idx[4]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1326 | |
| 1327 | static inline void *ide_get_hwifdata (ide_hwif_t * hwif) |
| 1328 | { |
| 1329 | return hwif->hwif_data; |
| 1330 | } |
| 1331 | |
| 1332 | static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data) |
| 1333 | { |
| 1334 | hwif->hwif_data = data; |
| 1335 | } |
| 1336 | |
Bartlomiej Zolnierkiewicz | 3ab7efe | 2007-12-12 23:31:58 +0100 | [diff] [blame] | 1337 | const char *ide_xfer_verbose(u8 mode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1338 | extern void ide_toggle_bounce(ide_drive_t *drive, int on); |
| 1339 | extern int ide_set_xfer_rate(ide_drive_t *drive, u8 rate); |
| 1340 | |
Bartlomiej Zolnierkiewicz | 2229833 | 2007-07-20 01:11:55 +0200 | [diff] [blame] | 1341 | static inline int ide_dev_has_iordy(struct hd_driveid *id) |
| 1342 | { |
| 1343 | return ((id->field_valid & 2) && (id->capability & 8)) ? 1 : 0; |
| 1344 | } |
| 1345 | |
Sergei Shtylyov | 6c3c22f | 2007-09-11 22:28:36 +0200 | [diff] [blame] | 1346 | static inline int ide_dev_is_sata(struct hd_driveid *id) |
| 1347 | { |
| 1348 | /* |
| 1349 | * See if word 93 is 0 AND drive is at least ATA-5 compatible |
| 1350 | * verifying that word 80 by casting it to a signed type -- |
| 1351 | * this trick allows us to filter out the reserved values of |
| 1352 | * 0x0000 and 0xffff along with the earlier ATA revisions... |
| 1353 | */ |
| 1354 | if (id->hw_config == 0 && (short)id->major_rev_num >= 0x0020) |
| 1355 | return 1; |
| 1356 | return 0; |
| 1357 | } |
| 1358 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1359 | u8 ide_dump_status(ide_drive_t *, const char *, u8); |
| 1360 | |
| 1361 | typedef struct ide_pio_timings_s { |
| 1362 | int setup_time; /* Address setup (ns) minimum */ |
| 1363 | int active_time; /* Active pulse (ns) minimum */ |
Sergei Shtylyov | 81d368e | 2007-03-03 17:48:53 +0100 | [diff] [blame] | 1364 | int cycle_time; /* Cycle time (ns) minimum = */ |
| 1365 | /* active + recovery (+ setup for some chips) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1366 | } ide_pio_timings_t; |
| 1367 | |
Bartlomiej Zolnierkiewicz | 7dd0008 | 2007-07-20 01:11:56 +0200 | [diff] [blame] | 1368 | unsigned int ide_pio_cycle_time(ide_drive_t *, u8); |
Bartlomiej Zolnierkiewicz | 2134758 | 2007-07-20 01:11:58 +0200 | [diff] [blame] | 1369 | u8 ide_get_best_pio_mode(ide_drive_t *, u8, u8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1370 | extern const ide_pio_timings_t ide_pio_timings[6]; |
| 1371 | |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 1372 | int ide_set_pio_mode(ide_drive_t *, u8); |
| 1373 | int ide_set_dma_mode(ide_drive_t *, u8); |
| 1374 | |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 1375 | void ide_set_pio(ide_drive_t *, u8); |
| 1376 | |
| 1377 | static inline void ide_set_max_pio(ide_drive_t *drive) |
| 1378 | { |
| 1379 | ide_set_pio(drive, 255); |
| 1380 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1381 | |
| 1382 | extern spinlock_t ide_lock; |
Matthias Kaehlcke | ef29888 | 2007-07-09 23:17:55 +0200 | [diff] [blame] | 1383 | extern struct mutex ide_cfg_mtx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1384 | /* |
| 1385 | * Structure locking: |
| 1386 | * |
Matthias Kaehlcke | ef29888 | 2007-07-09 23:17:55 +0200 | [diff] [blame] | 1387 | * ide_cfg_mtx and ide_lock together protect changes to |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1388 | * ide_hwif_t->{next,hwgroup} |
| 1389 | * ide_drive_t->next |
| 1390 | * |
| 1391 | * ide_hwgroup_t->busy: ide_lock |
| 1392 | * ide_hwgroup_t->hwif: ide_lock |
| 1393 | * ide_hwif_t->mate: constant, no locking |
| 1394 | * ide_drive_t->hwif: constant, no locking |
| 1395 | */ |
| 1396 | |
Ingo Molnar | 366c7f5 | 2006-07-03 00:25:25 -0700 | [diff] [blame] | 1397 | #define local_irq_set(flags) do { local_save_flags((flags)); local_irq_enable_in_hardirq(); } while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1398 | |
| 1399 | extern struct bus_type ide_bus_type; |
| 1400 | |
| 1401 | /* check if CACHE FLUSH (EXT) command is supported (bits defined in ATA-6) */ |
| 1402 | #define ide_id_has_flush_cache(id) ((id)->cfs_enable_2 & 0x3000) |
| 1403 | |
| 1404 | /* some Maxtor disks have bit 13 defined incorrectly so check bit 10 too */ |
| 1405 | #define ide_id_has_flush_cache_ext(id) \ |
| 1406 | (((id)->cfs_enable_2 & 0x2400) == 0x2400) |
| 1407 | |
Christoph Lameter | 86b3786 | 2005-08-09 19:59:21 -0700 | [diff] [blame] | 1408 | static inline int hwif_to_node(ide_hwif_t *hwif) |
| 1409 | { |
| 1410 | struct pci_dev *dev = hwif->pci_dev; |
| 1411 | return dev ? pcibus_to_node(dev->bus) : -1; |
| 1412 | } |
| 1413 | |
Benjamin Herrenschmidt | 1b67834 | 2007-10-19 00:30:05 +0200 | [diff] [blame] | 1414 | static inline ide_drive_t *ide_get_paired_drive(ide_drive_t *drive) |
| 1415 | { |
| 1416 | ide_hwif_t *hwif = HWIF(drive); |
| 1417 | |
| 1418 | return &hwif->drives[(drive->dn ^ 1) & 1]; |
| 1419 | } |
| 1420 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1421 | #endif /* _IDE_H */ |