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> |
Bartlomiej Zolnierkiewicz | 3ceca72 | 2008-10-10 22:39:27 +0200 | [diff] [blame] | 11 | #include <linux/ata.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | #include <linux/blkdev.h> |
| 13 | #include <linux/proc_fs.h> |
| 14 | #include <linux/interrupt.h> |
| 15 | #include <linux/bitops.h> |
| 16 | #include <linux/bio.h> |
| 17 | #include <linux/device.h> |
| 18 | #include <linux/pci.h> |
Aleksey Makarov | f36d402 | 2006-01-09 15:59:27 -0800 | [diff] [blame] | 19 | #include <linux/completion.h> |
Bartlomiej Zolnierkiewicz | feb22b7 | 2008-10-10 22:39:32 +0200 | [diff] [blame] | 20 | #include <linux/pm.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> |
Matthias Kaehlcke | f9383c4 | 2007-07-09 23:17:56 +0200 | [diff] [blame] | 27 | #include <asm/mutex.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | |
Bartlomiej Zolnierkiewicz | 729d4de | 2008-03-29 19:55:17 +0100 | [diff] [blame] | 29 | #if defined(CONFIG_CRIS) || defined(CONFIG_FRV) |
Bartlomiej Zolnierkiewicz | 4ee06b7 | 2008-01-25 22:17:08 +0100 | [diff] [blame] | 30 | # define SUPPORT_VLB_SYNC 0 |
| 31 | #else |
| 32 | # define SUPPORT_VLB_SYNC 1 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #endif |
| 34 | |
| 35 | /* |
| 36 | * Used to indicate "no IRQ", should be a value that cannot be an IRQ |
| 37 | * number. |
| 38 | */ |
| 39 | |
| 40 | #define IDE_NO_IRQ (-1) |
| 41 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | typedef unsigned char byte; /* used everywhere */ |
| 43 | |
| 44 | /* |
| 45 | * Probably not wise to fiddle with these |
| 46 | */ |
| 47 | #define ERROR_MAX 8 /* Max read/write errors per sector */ |
| 48 | #define ERROR_RESET 3 /* Reset controller every 4th retry */ |
| 49 | #define ERROR_RECAL 1 /* Recalibrate every 2nd retry */ |
| 50 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | #define HWIF(drive) ((ide_hwif_t *)((drive)->hwif)) |
| 52 | #define HWGROUP(drive) ((ide_hwgroup_t *)(HWIF(drive)->hwgroup)) |
| 53 | |
| 54 | /* |
| 55 | * Definitions for accessing IDE controller registers |
| 56 | */ |
| 57 | #define IDE_NR_PORTS (10) |
| 58 | |
Bartlomiej Zolnierkiewicz | 4c3032d | 2008-04-27 15:38:32 +0200 | [diff] [blame] | 59 | struct ide_io_ports { |
| 60 | unsigned long data_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | |
Bartlomiej Zolnierkiewicz | 4c3032d | 2008-04-27 15:38:32 +0200 | [diff] [blame] | 62 | union { |
| 63 | unsigned long error_addr; /* read: error */ |
| 64 | unsigned long feature_addr; /* write: feature */ |
| 65 | }; |
| 66 | |
| 67 | unsigned long nsect_addr; |
| 68 | unsigned long lbal_addr; |
| 69 | unsigned long lbam_addr; |
| 70 | unsigned long lbah_addr; |
| 71 | |
| 72 | unsigned long device_addr; |
| 73 | |
| 74 | union { |
| 75 | unsigned long status_addr; /* read: status */ |
| 76 | unsigned long command_addr; /* write: command */ |
| 77 | }; |
| 78 | |
| 79 | unsigned long ctl_addr; |
| 80 | |
| 81 | unsigned long irq_addr; |
| 82 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | |
| 84 | #define OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | |
Bartlomiej Zolnierkiewicz | 3a7d248 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 86 | #define BAD_R_STAT (ATA_BUSY | ATA_ERR) |
| 87 | #define BAD_W_STAT (BAD_R_STAT | ATA_DF) |
| 88 | #define BAD_STAT (BAD_R_STAT | ATA_DRQ) |
| 89 | #define DRIVE_READY (ATA_DRDY | ATA_DSC) |
| 90 | |
| 91 | #define BAD_CRC (ATA_ABORTED | ATA_ICRC) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | |
| 93 | #define SATA_NR_PORTS (3) /* 16 possible ?? */ |
| 94 | |
| 95 | #define SATA_STATUS_OFFSET (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | #define SATA_ERROR_OFFSET (1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | #define SATA_CONTROL_OFFSET (2) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | /* |
| 100 | * Our Physical Region Descriptor (PRD) table should be large enough |
| 101 | * to handle the biggest I/O request we are likely to see. Since requests |
| 102 | * can have no more than 256 sectors, and since the typical blocksize is |
| 103 | * two or more sectors, we could get by with a limit of 128 entries here for |
| 104 | * the usual worst case. Most requests seem to include some contiguous blocks, |
| 105 | * further reducing the number of table entries required. |
| 106 | * |
| 107 | * The driver reverts to PIO mode for individual requests that exceed |
| 108 | * this limit (possible with 512 byte blocksizes, eg. MSDOS f/s), so handling |
| 109 | * 100% of all crazy scenarios here is not necessary. |
| 110 | * |
| 111 | * As it turns out though, we must allocate a full 4KB page for this, |
| 112 | * so the two PRD tables (ide0 & ide1) will each get half of that, |
| 113 | * allowing each to have about 256 entries (8 bytes each) from this. |
| 114 | */ |
| 115 | #define PRD_BYTES 8 |
| 116 | #define PRD_ENTRIES 256 |
| 117 | |
| 118 | /* |
| 119 | * Some more useful definitions |
| 120 | */ |
| 121 | #define PARTN_BITS 6 /* number of minor dev bits for partitions */ |
| 122 | #define MAX_DRIVES 2 /* per interface; 2 assumed by lots of code */ |
| 123 | #define SECTOR_SIZE 512 |
Bartlomiej Zolnierkiewicz | 151a670 | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 124 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | #define IDE_LARGE_SEEK(b1,b2,t) (((b1) > (b2) + (t)) || ((b2) > (b1) + (t))) |
| 126 | |
| 127 | /* |
| 128 | * Timeouts for various operations: |
| 129 | */ |
Bartlomiej Zolnierkiewicz | d6e2955 | 2008-10-10 22:39:39 +0200 | [diff] [blame] | 130 | enum { |
| 131 | /* spec allows up to 20ms */ |
| 132 | WAIT_DRQ = HZ / 10, /* 100ms */ |
| 133 | /* some laptops are very slow */ |
| 134 | WAIT_READY = 5 * HZ, /* 5s */ |
| 135 | /* should be less than 3ms (?), if all ATAPI CD is closed at boot */ |
| 136 | WAIT_PIDENTIFY = 10 * HZ, /* 10s */ |
| 137 | /* worst case when spinning up */ |
| 138 | WAIT_WORSTCASE = 30 * HZ, /* 30s */ |
| 139 | /* maximum wait for an IRQ to happen */ |
| 140 | WAIT_CMD = 10 * HZ, /* 10s */ |
| 141 | /* Some drives require a longer IRQ timeout. */ |
| 142 | WAIT_FLOPPY_CMD = 50 * HZ, /* 50s */ |
| 143 | /* |
| 144 | * Some drives (for example, Seagate STT3401A Travan) require a very |
| 145 | * long timeout, because they don't return an interrupt or clear their |
| 146 | * BSY bit until after the command completes (even retension commands). |
| 147 | */ |
| 148 | WAIT_TAPE_CMD = 900 * HZ, /* 900s */ |
| 149 | /* minimum sleep time */ |
| 150 | WAIT_MIN_SLEEP = HZ / 50, /* 20ms */ |
| 151 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | /* |
Elias Oltmanns | 79e36a9 | 2008-07-16 20:33:48 +0200 | [diff] [blame] | 154 | * Op codes for special requests to be handled by ide_special_rq(). |
| 155 | * Values should be in the range of 0x20 to 0x3f. |
| 156 | */ |
| 157 | #define REQ_DRIVE_RESET 0x20 |
Elias Oltmanns | 92f1f8f | 2008-10-10 22:39:40 +0200 | [diff] [blame] | 158 | #define REQ_DEVSET_EXEC 0x21 |
Elias Oltmanns | 79e36a9 | 2008-07-16 20:33:48 +0200 | [diff] [blame] | 159 | |
| 160 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | * Check for an interrupt and acknowledge the interrupt status |
| 162 | */ |
| 163 | struct hwif_s; |
| 164 | typedef int (ide_ack_intr_t)(struct hwif_s *); |
| 165 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | /* |
| 167 | * hwif_chipset_t is used to keep track of the specific hardware |
| 168 | * chipset used by each IDE interface, if known. |
| 169 | */ |
Bartlomiej Zolnierkiewicz | 528a572 | 2007-10-20 00:32:30 +0200 | [diff] [blame] | 170 | enum { ide_unknown, ide_generic, ide_pci, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | ide_cmd640, ide_dtc2278, ide_ali14xx, |
| 172 | ide_qd65xx, ide_umc8672, ide_ht6560b, |
| 173 | ide_rz1000, ide_trm290, |
| 174 | ide_cmd646, ide_cy82c693, ide_4drives, |
Adrian Bunk | b769164 | 2008-06-10 20:56:36 +0200 | [diff] [blame] | 175 | ide_pmac, ide_acorn, |
Bartlomiej Zolnierkiewicz | 9a0e77f | 2008-04-18 00:46:24 +0200 | [diff] [blame] | 176 | ide_au1xxx, ide_palm3710 |
Bartlomiej Zolnierkiewicz | 528a572 | 2007-10-20 00:32:30 +0200 | [diff] [blame] | 177 | }; |
| 178 | |
| 179 | typedef u8 hwif_chipset_t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | |
| 181 | /* |
| 182 | * Structure to hold all information about the location of this port |
| 183 | */ |
| 184 | typedef struct hw_regs_s { |
Bartlomiej Zolnierkiewicz | 4c3032d | 2008-04-27 15:38:32 +0200 | [diff] [blame] | 185 | union { |
| 186 | struct ide_io_ports io_ports; |
| 187 | unsigned long io_ports_array[IDE_NR_PORTS]; |
| 188 | }; |
| 189 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | int irq; /* our irq number */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | ide_ack_intr_t *ack_intr; /* acknowledge interrupt */ |
| 192 | hwif_chipset_t chipset; |
Bartlomiej Zolnierkiewicz | c56c564 | 2008-07-16 20:33:40 +0200 | [diff] [blame] | 193 | struct device *dev, *parent; |
Bartlomiej Zolnierkiewicz | d6276b5 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 194 | unsigned long config; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | } hw_regs_t; |
| 196 | |
Bartlomiej Zolnierkiewicz | cbb010c | 2008-01-26 20:13:06 +0100 | [diff] [blame] | 197 | void ide_init_port_data(struct hwif_s *, unsigned int); |
Bartlomiej Zolnierkiewicz | 57c802e | 2008-01-26 20:13:05 +0100 | [diff] [blame] | 198 | void ide_init_port_hw(struct hwif_s *, hw_regs_t *); |
Bartlomiej Zolnierkiewicz | baa8f3e | 2007-10-20 00:32:31 +0200 | [diff] [blame] | 199 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | static inline void ide_std_init_ports(hw_regs_t *hw, |
| 201 | unsigned long io_addr, |
| 202 | unsigned long ctl_addr) |
| 203 | { |
| 204 | unsigned int i; |
| 205 | |
Bartlomiej Zolnierkiewicz | 4c3032d | 2008-04-27 15:38:32 +0200 | [diff] [blame] | 206 | for (i = 0; i <= 7; i++) |
| 207 | hw->io_ports_array[i] = io_addr++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | |
Bartlomiej Zolnierkiewicz | 4c3032d | 2008-04-27 15:38:32 +0200 | [diff] [blame] | 209 | hw->io_ports.ctl_addr = ctl_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | } |
| 211 | |
Bartlomiej Zolnierkiewicz | a861beb | 2008-07-08 19:27:22 +0200 | [diff] [blame] | 212 | /* for IDE PCI controllers in legacy mode, temporary */ |
| 213 | static inline int __ide_default_irq(unsigned long base) |
| 214 | { |
| 215 | switch (base) { |
| 216 | #ifdef CONFIG_IA64 |
| 217 | case 0x1f0: return isa_irq_to_vector(14); |
| 218 | case 0x170: return isa_irq_to_vector(15); |
| 219 | #else |
| 220 | case 0x1f0: return 14; |
| 221 | case 0x170: return 15; |
| 222 | #endif |
| 223 | } |
| 224 | return 0; |
| 225 | } |
| 226 | |
Bartlomiej Zolnierkiewicz | 2a8f745 | 2008-07-24 22:53:31 +0200 | [diff] [blame] | 227 | #if defined(CONFIG_ARM) || defined(CONFIG_FRV) || defined(CONFIG_M68K) || \ |
| 228 | defined(CONFIG_MIPS) || defined(CONFIG_MN10300) || defined(CONFIG_PARISC) \ |
| 229 | || defined(CONFIG_PPC) || defined(CONFIG_SPARC) || defined(CONFIG_SPARC64) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | #include <asm/ide.h> |
Bartlomiej Zolnierkiewicz | 2a8f745 | 2008-07-24 22:53:31 +0200 | [diff] [blame] | 231 | #else |
| 232 | #include <asm-generic/ide_iops.h> |
| 233 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | |
Adrian Bunk | c5bfc37 | 2008-08-05 18:17:01 +0200 | [diff] [blame] | 235 | #define MAX_HWIFS 10 |
Bjorn Helgaas | 83ae20c | 2005-11-09 22:58:07 +0100 | [diff] [blame] | 236 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | /* Currently only m68k, apus and m8xx need it */ |
| 238 | #ifndef IDE_ARCH_ACK_INTR |
| 239 | # define ide_ack_intr(hwif) (1) |
| 240 | #endif |
| 241 | |
| 242 | /* Currently only Atari needs it */ |
| 243 | #ifndef IDE_ARCH_LOCK |
| 244 | # define ide_release_lock() do {} while (0) |
| 245 | # define ide_get_lock(hdlr, data) do {} while (0) |
| 246 | #endif /* IDE_ARCH_LOCK */ |
| 247 | |
| 248 | /* |
| 249 | * Now for the data we need to maintain per-drive: ide_drive_t |
| 250 | */ |
| 251 | |
| 252 | #define ide_scsi 0x21 |
| 253 | #define ide_disk 0x20 |
| 254 | #define ide_optical 0x7 |
| 255 | #define ide_cdrom 0x5 |
| 256 | #define ide_tape 0x1 |
| 257 | #define ide_floppy 0x0 |
| 258 | |
| 259 | /* |
| 260 | * Special Driver Flags |
| 261 | * |
| 262 | * set_geometry : respecify drive geometry |
| 263 | * recalibrate : seek to cyl 0 |
| 264 | * set_multmode : set multmode count |
| 265 | * set_tune : tune interface for drive |
| 266 | * serviced : service command |
| 267 | * reserved : unused |
| 268 | */ |
| 269 | typedef union { |
| 270 | unsigned all : 8; |
| 271 | struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | unsigned set_geometry : 1; |
| 273 | unsigned recalibrate : 1; |
| 274 | unsigned set_multmode : 1; |
| 275 | unsigned set_tune : 1; |
| 276 | unsigned serviced : 1; |
| 277 | unsigned reserved : 3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | } b; |
| 279 | } special_t; |
| 280 | |
| 281 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | * ATA-IDE Select Register, aka Device-Head |
| 283 | * |
| 284 | * head : always zeros here |
| 285 | * unit : drive select number: 0/1 |
| 286 | * bit5 : always 1 |
| 287 | * lba : using LBA instead of CHS |
| 288 | * bit7 : always 1 |
| 289 | */ |
| 290 | typedef union { |
| 291 | unsigned all : 8; |
| 292 | struct { |
| 293 | #if defined(__LITTLE_ENDIAN_BITFIELD) |
| 294 | unsigned head : 4; |
| 295 | unsigned unit : 1; |
| 296 | unsigned bit5 : 1; |
| 297 | unsigned lba : 1; |
| 298 | unsigned bit7 : 1; |
| 299 | #elif defined(__BIG_ENDIAN_BITFIELD) |
| 300 | unsigned bit7 : 1; |
| 301 | unsigned lba : 1; |
| 302 | unsigned bit5 : 1; |
| 303 | unsigned unit : 1; |
| 304 | unsigned head : 4; |
| 305 | #else |
| 306 | #error "Please fix <asm/byteorder.h>" |
| 307 | #endif |
| 308 | } b; |
| 309 | } select_t, ata_select_t; |
| 310 | |
| 311 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | * Status returned from various ide_ functions |
| 313 | */ |
| 314 | typedef enum { |
| 315 | ide_stopped, /* no drive operation was started */ |
| 316 | ide_started, /* a drive operation was started, handler was set */ |
| 317 | } ide_startstop_t; |
| 318 | |
Bartlomiej Zolnierkiewicz | 67c5636 | 2008-10-13 21:39:31 +0200 | [diff] [blame] | 319 | /* ATAPI packet command flags */ |
| 320 | enum { |
| 321 | /* set when an error is considered normal - no retry (ide-tape) */ |
| 322 | PC_FLAG_ABORT = (1 << 0), |
| 323 | PC_FLAG_SUPPRESS_ERROR = (1 << 1), |
| 324 | PC_FLAG_WAIT_FOR_DSC = (1 << 2), |
| 325 | PC_FLAG_DMA_OK = (1 << 3), |
| 326 | PC_FLAG_DMA_IN_PROGRESS = (1 << 4), |
| 327 | PC_FLAG_DMA_ERROR = (1 << 5), |
| 328 | PC_FLAG_WRITING = (1 << 6), |
| 329 | /* command timed out */ |
| 330 | PC_FLAG_TIMEDOUT = (1 << 7), |
| 331 | }; |
| 332 | |
| 333 | /* |
| 334 | * With each packet command, we allocate a buffer of IDE_PC_BUFFER_SIZE bytes. |
| 335 | * This is used for several packet commands (not for READ/WRITE commands). |
| 336 | */ |
| 337 | #define IDE_PC_BUFFER_SIZE 256 |
| 338 | |
| 339 | struct ide_atapi_pc { |
| 340 | /* actual packet bytes */ |
| 341 | u8 c[12]; |
| 342 | /* incremented on each retry */ |
| 343 | int retries; |
| 344 | int error; |
| 345 | |
| 346 | /* bytes to transfer */ |
| 347 | int req_xfer; |
| 348 | /* bytes actually transferred */ |
| 349 | int xferred; |
| 350 | |
| 351 | /* data buffer */ |
| 352 | u8 *buf; |
| 353 | /* current buffer position */ |
| 354 | u8 *cur_pos; |
| 355 | int buf_size; |
| 356 | /* missing/available data on the current buffer */ |
| 357 | int b_count; |
| 358 | |
| 359 | /* the corresponding request */ |
| 360 | struct request *rq; |
| 361 | |
| 362 | unsigned long flags; |
| 363 | |
| 364 | /* |
| 365 | * those are more or less driver-specific and some of them are subject |
| 366 | * to change/removal later. |
| 367 | */ |
| 368 | u8 pc_buf[IDE_PC_BUFFER_SIZE]; |
| 369 | |
| 370 | /* idetape only */ |
| 371 | struct idetape_bh *bh; |
| 372 | char *b_data; |
| 373 | |
| 374 | /* idescsi only for now */ |
| 375 | struct scatterlist *sg; |
| 376 | unsigned int sg_cnt; |
| 377 | |
| 378 | struct scsi_cmnd *scsi_cmd; |
| 379 | void (*done) (struct scsi_cmnd *); |
| 380 | |
| 381 | unsigned long timeout; |
| 382 | }; |
| 383 | |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 384 | struct ide_devset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | struct ide_driver_s; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | |
Hannes Reinecke | e3a59b4 | 2007-02-07 18:19:37 +0100 | [diff] [blame] | 387 | #ifdef CONFIG_BLK_DEV_IDEACPI |
| 388 | struct ide_acpi_drive_link; |
| 389 | struct ide_acpi_hwif_link; |
| 390 | #endif |
| 391 | |
Borislav Petkov | 3b8ac53 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 392 | /* ATAPI device flags */ |
| 393 | enum { |
| 394 | IDE_AFLAG_DRQ_INTERRUPT = (1 << 0), |
| 395 | IDE_AFLAG_MEDIA_CHANGED = (1 << 1), |
Borislav Petkov | 3b8ac53 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 396 | /* Drive cannot lock the door. */ |
| 397 | IDE_AFLAG_NO_DOORLOCK = (1 << 2), |
Bartlomiej Zolnierkiewicz | 0578042 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 398 | |
| 399 | /* ide-cd */ |
Borislav Petkov | 3b8ac53 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 400 | /* Drive cannot eject the disc. */ |
| 401 | IDE_AFLAG_NO_EJECT = (1 << 3), |
| 402 | /* Drive is a pre ATAPI 1.2 drive. */ |
| 403 | IDE_AFLAG_PRE_ATAPI12 = (1 << 4), |
| 404 | /* TOC addresses are in BCD. */ |
| 405 | IDE_AFLAG_TOCADDR_AS_BCD = (1 << 5), |
| 406 | /* TOC track numbers are in BCD. */ |
| 407 | IDE_AFLAG_TOCTRACKS_AS_BCD = (1 << 6), |
| 408 | /* |
| 409 | * Drive does not provide data in multiples of SECTOR_SIZE |
| 410 | * when more than one interrupt is needed. |
| 411 | */ |
| 412 | IDE_AFLAG_LIMIT_NFRAMES = (1 << 7), |
| 413 | /* Seeking in progress. */ |
| 414 | IDE_AFLAG_SEEKING = (1 << 8), |
| 415 | /* Saved TOC information is current. */ |
| 416 | IDE_AFLAG_TOC_VALID = (1 << 9), |
| 417 | /* We think that the drive door is locked. */ |
| 418 | IDE_AFLAG_DOOR_LOCKED = (1 << 10), |
| 419 | /* SET_CD_SPEED command is unsupported. */ |
| 420 | IDE_AFLAG_NO_SPEED_SELECT = (1 << 11), |
| 421 | IDE_AFLAG_VERTOS_300_SSD = (1 << 12), |
| 422 | IDE_AFLAG_VERTOS_600_ESD = (1 << 13), |
| 423 | IDE_AFLAG_SANYO_3CD = (1 << 14), |
| 424 | IDE_AFLAG_FULL_CAPS_PAGE = (1 << 15), |
| 425 | IDE_AFLAG_PLAY_AUDIO_OK = (1 << 16), |
| 426 | IDE_AFLAG_LE_SPEED_FIELDS = (1 << 17), |
| 427 | |
| 428 | /* ide-floppy */ |
| 429 | /* Format in progress */ |
| 430 | IDE_AFLAG_FORMAT_IN_PROGRESS = (1 << 18), |
| 431 | /* Avoid commands not supported in Clik drive */ |
| 432 | IDE_AFLAG_CLIK_DRIVE = (1 << 19), |
| 433 | /* Requires BH algorithm for packets */ |
| 434 | IDE_AFLAG_ZIP_DRIVE = (1 << 20), |
Bartlomiej Zolnierkiewicz | 49cac39 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 435 | /* Write protect */ |
| 436 | IDE_AFLAG_WP = (1 << 21), |
| 437 | /* Supports format progress report */ |
| 438 | IDE_AFLAG_SRFP = (1 << 22), |
Borislav Petkov | 3b8ac53 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 439 | |
| 440 | /* ide-tape */ |
Bartlomiej Zolnierkiewicz | 49cac39 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 441 | IDE_AFLAG_IGNORE_DSC = (1 << 23), |
Borislav Petkov | 3b8ac53 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 442 | /* 0 When the tape position is unknown */ |
Bartlomiej Zolnierkiewicz | 49cac39 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 443 | IDE_AFLAG_ADDRESS_VALID = (1 << 24), |
Borislav Petkov | 3b8ac53 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 444 | /* Device already opened */ |
Bartlomiej Zolnierkiewicz | 49cac39 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 445 | IDE_AFLAG_BUSY = (1 << 25), |
Borislav Petkov | 3b8ac53 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 446 | /* Attempt to auto-detect the current user block size */ |
Bartlomiej Zolnierkiewicz | 49cac39 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 447 | IDE_AFLAG_DETECT_BS = (1 << 26), |
Borislav Petkov | 3b8ac53 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 448 | /* Currently on a filemark */ |
Bartlomiej Zolnierkiewicz | 49cac39 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 449 | IDE_AFLAG_FILEMARK = (1 << 27), |
Borislav Petkov | 3b8ac53 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 450 | /* 0 = no tape is loaded, so we don't rewind after ejecting */ |
Bartlomiej Zolnierkiewicz | 49cac39 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 451 | IDE_AFLAG_MEDIUM_PRESENT = (1 << 28), |
Borislav Petkov | f20f258 | 2008-10-05 18:23:27 +0200 | [diff] [blame] | 452 | |
Bartlomiej Zolnierkiewicz | 49cac39 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 453 | IDE_AFLAG_NO_AUTOCLOSE = (1 << 29), |
Borislav Petkov | 3b8ac53 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 454 | }; |
| 455 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 456 | /* device flags */ |
| 457 | enum { |
| 458 | /* restore settings after device reset */ |
| 459 | IDE_DFLAG_KEEP_SETTINGS = (1 << 0), |
| 460 | /* device is using DMA for read/write */ |
| 461 | IDE_DFLAG_USING_DMA = (1 << 1), |
| 462 | /* okay to unmask other IRQs */ |
| 463 | IDE_DFLAG_UNMASK = (1 << 2), |
| 464 | /* don't attempt flushes */ |
| 465 | IDE_DFLAG_NOFLUSH = (1 << 3), |
| 466 | /* DSC overlap */ |
| 467 | IDE_DFLAG_DSC_OVERLAP = (1 << 4), |
| 468 | /* give potential excess bandwidth */ |
| 469 | IDE_DFLAG_NICE1 = (1 << 5), |
| 470 | /* device is physically present */ |
| 471 | IDE_DFLAG_PRESENT = (1 << 6), |
| 472 | /* device ejected hint */ |
| 473 | IDE_DFLAG_DEAD = (1 << 7), |
| 474 | /* id read from device (synthetic if not set) */ |
| 475 | IDE_DFLAG_ID_READ = (1 << 8), |
| 476 | IDE_DFLAG_NOPROBE = (1 << 9), |
| 477 | /* need to do check_media_change() */ |
| 478 | IDE_DFLAG_REMOVABLE = (1 << 10), |
| 479 | /* needed for removable devices */ |
| 480 | IDE_DFLAG_ATTACH = (1 << 11), |
| 481 | IDE_DFLAG_FORCED_GEOM = (1 << 12), |
| 482 | /* disallow setting unmask bit */ |
| 483 | IDE_DFLAG_NO_UNMASK = (1 << 13), |
| 484 | /* disallow enabling 32-bit I/O */ |
| 485 | IDE_DFLAG_NO_IO_32BIT = (1 << 14), |
| 486 | /* for removable only: door lock/unlock works */ |
| 487 | IDE_DFLAG_DOORLOCKING = (1 << 15), |
| 488 | /* disallow DMA */ |
| 489 | IDE_DFLAG_NODMA = (1 << 16), |
| 490 | /* powermanagment told us not to do anything, so sleep nicely */ |
| 491 | IDE_DFLAG_BLOCKED = (1 << 17), |
| 492 | /* ide-scsi emulation */ |
| 493 | IDE_DFLAG_SCSI = (1 << 18), |
| 494 | /* sleeping & sleep field valid */ |
| 495 | IDE_DFLAG_SLEEPING = (1 << 19), |
| 496 | IDE_DFLAG_POST_RESET = (1 << 20), |
| 497 | IDE_DFLAG_UDMA33_WARNED = (1 << 21), |
| 498 | IDE_DFLAG_LBA48 = (1 << 22), |
| 499 | /* status of write cache */ |
| 500 | IDE_DFLAG_WCACHE = (1 << 23), |
| 501 | /* used for ignoring ATA_DF */ |
| 502 | IDE_DFLAG_NOWERR = (1 << 24), |
Bartlomiej Zolnierkiewicz | c392204 | 2008-10-13 21:39:37 +0200 | [diff] [blame] | 503 | /* retrying in PIO */ |
| 504 | IDE_DFLAG_DMA_PIO_RETRY = (1 << 25), |
Bartlomiej Zolnierkiewicz | d1d7671 | 2008-10-13 21:39:38 +0200 | [diff] [blame] | 505 | IDE_DFLAG_LBA = (1 << 26), |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 506 | }; |
| 507 | |
Borislav Petkov | d7c26eb | 2008-07-23 19:55:59 +0200 | [diff] [blame] | 508 | struct ide_drive_s { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | char name[4]; /* drive name, such as "hda" */ |
| 510 | char driver_req[10]; /* requests specific driver */ |
| 511 | |
Jens Axboe | 165125e | 2007-07-24 09:28:11 +0200 | [diff] [blame] | 512 | struct request_queue *queue; /* request queue */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | |
| 514 | struct request *rq; /* current request */ |
| 515 | struct ide_drive_s *next; /* circular list of hwgroup drives */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | void *driver_data; /* extra driver data */ |
Bartlomiej Zolnierkiewicz | 48fb268 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 517 | u16 *id; /* identification info */ |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 518 | #ifdef CONFIG_IDE_PROC_FS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ |
Elias Oltmanns | 92f1f8f | 2008-10-10 22:39:40 +0200 | [diff] [blame] | 520 | const struct ide_proc_devset *settings; /* /proc/ide/ drive settings */ |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 521 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | struct hwif_s *hwif; /* actually (ide_hwif_t *) */ |
| 523 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 524 | unsigned long dev_flags; |
| 525 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | unsigned long sleep; /* sleep until this time */ |
| 527 | unsigned long service_start; /* time we started last request */ |
| 528 | unsigned long service_time; /* service time of last request */ |
| 529 | unsigned long timeout; /* max time to wait for irq */ |
| 530 | |
| 531 | special_t special; /* special action flags */ |
| 532 | select_t select; /* basic drive/head select reg value */ |
| 533 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | u8 retry_pio; /* retrying dma capable host in pio */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | u8 waiting_for_dma; /* dma currently in progress */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 536 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | u8 quirk_list; /* considered quirky, set for a specific host */ |
| 538 | u8 init_speed; /* transfer rate set at boot */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | u8 current_speed; /* current transfer rate set */ |
Suleiman Souhlal | 513daad | 2007-03-26 23:03:20 +0200 | [diff] [blame] | 540 | u8 desired_speed; /* desired transfer rate set */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | u8 dn; /* now wide spread use */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 542 | u8 acoustic; /* acoustic management */ |
| 543 | u8 media; /* disk, cdrom, tape, floppy, ... */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 544 | u8 ready_stat; /* min status value for drive ready */ |
| 545 | u8 mult_count; /* current multiple sector setting */ |
| 546 | u8 mult_req; /* requested multiple sector setting */ |
| 547 | u8 tune_req; /* requested drive tuning setting */ |
| 548 | u8 io_32bit; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */ |
Bartlomiej Zolnierkiewicz | 3a7d248 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 549 | u8 bad_wstat; /* used for ignoring ATA_DF */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | u8 head; /* "real" number of heads */ |
| 551 | u8 sect; /* "real" sectors per track */ |
| 552 | u8 bios_head; /* BIOS/fdisk/LILO number of heads */ |
| 553 | u8 bios_sect; /* BIOS/fdisk/LILO sectors per track */ |
| 554 | |
Bartlomiej Zolnierkiewicz | baf08f0 | 2008-10-13 21:39:32 +0200 | [diff] [blame] | 555 | /* delay this long before sending packet command */ |
| 556 | u8 pc_delay; |
| 557 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | unsigned int bios_cyl; /* BIOS/fdisk/LILO number of cyls */ |
| 559 | unsigned int cyl; /* "real" number of cyls */ |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 560 | unsigned int drive_data; /* used by set_pio_mode/selectproc */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | unsigned int failures; /* current failure count */ |
| 562 | unsigned int max_failures; /* maximum allowed failure count */ |
Alan Cox | dbe217a | 2006-06-25 05:47:44 -0700 | [diff] [blame] | 563 | u64 probed_capacity;/* initial reported media capacity (ide-cd only currently) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | |
| 565 | u64 capacity64; /* total number of sectors */ |
| 566 | |
| 567 | int lun; /* logical unit */ |
| 568 | int crc_count; /* crc counter to reduce drive speed */ |
Borislav Petkov | b22b2ca | 2008-10-13 21:39:34 +0200 | [diff] [blame] | 569 | |
| 570 | unsigned long debug_mask; /* debugging levels switch */ |
| 571 | |
Hannes Reinecke | e3a59b4 | 2007-02-07 18:19:37 +0100 | [diff] [blame] | 572 | #ifdef CONFIG_BLK_DEV_IDEACPI |
| 573 | struct ide_acpi_drive_link *acpidata; |
| 574 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | struct list_head list; |
| 576 | struct device gendev; |
Aleksey Makarov | f36d402 | 2006-01-09 15:59:27 -0800 | [diff] [blame] | 577 | struct completion gendev_rel_comp; /* to deal with device release() */ |
Borislav Petkov | d7c26eb | 2008-07-23 19:55:59 +0200 | [diff] [blame] | 578 | |
Bartlomiej Zolnierkiewicz | 2b9efba | 2008-10-13 21:39:31 +0200 | [diff] [blame] | 579 | /* current packet command */ |
| 580 | struct ide_atapi_pc *pc; |
| 581 | |
Borislav Petkov | d7c26eb | 2008-07-23 19:55:59 +0200 | [diff] [blame] | 582 | /* callback for packet commands */ |
Bartlomiej Zolnierkiewicz | b14c721 | 2008-10-13 21:39:30 +0200 | [diff] [blame] | 583 | void (*pc_callback)(struct ide_drive_s *, int); |
Borislav Petkov | 3b8ac53 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 584 | |
Bartlomiej Zolnierkiewicz | 85e3903 | 2008-10-13 21:39:32 +0200 | [diff] [blame] | 585 | void (*pc_update_buffers)(struct ide_drive_s *, struct ide_atapi_pc *); |
| 586 | int (*pc_io_buffers)(struct ide_drive_s *, struct ide_atapi_pc *, |
| 587 | unsigned int, int); |
| 588 | |
Borislav Petkov | 3b8ac53 | 2008-07-23 19:56:01 +0200 | [diff] [blame] | 589 | unsigned long atapi_flags; |
Bartlomiej Zolnierkiewicz | 67c5636 | 2008-10-13 21:39:31 +0200 | [diff] [blame] | 590 | |
| 591 | struct ide_atapi_pc request_sense_pc; |
| 592 | struct request request_sense_rq; |
Borislav Petkov | d7c26eb | 2008-07-23 19:55:59 +0200 | [diff] [blame] | 593 | }; |
| 594 | |
| 595 | typedef struct ide_drive_s ide_drive_t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | |
Borislav Petkov | 5aeddf9 | 2008-10-13 21:39:34 +0200 | [diff] [blame] | 597 | #define to_ide_device(dev) container_of(dev, ide_drive_t, gendev) |
| 598 | |
| 599 | #define to_ide_drv(obj, cont_type) \ |
| 600 | container_of(obj, struct cont_type, kref) |
| 601 | |
| 602 | #define ide_drv_g(disk, cont_type) \ |
| 603 | container_of((disk)->private_data, struct cont_type, driver) |
Bartlomiej Zolnierkiewicz | 8604aff | 2005-05-26 14:55:34 +0200 | [diff] [blame] | 604 | |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 605 | struct ide_task_s; |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 606 | struct ide_port_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 608 | struct ide_tp_ops { |
| 609 | void (*exec_command)(struct hwif_s *, u8); |
| 610 | u8 (*read_status)(struct hwif_s *); |
| 611 | u8 (*read_altstatus)(struct hwif_s *); |
| 612 | u8 (*read_sff_dma_status)(struct hwif_s *); |
| 613 | |
| 614 | void (*set_irq)(struct hwif_s *, int); |
| 615 | |
| 616 | void (*tf_load)(ide_drive_t *, struct ide_task_s *); |
| 617 | void (*tf_read)(ide_drive_t *, struct ide_task_s *); |
| 618 | |
| 619 | void (*input_data)(ide_drive_t *, struct request *, void *, |
| 620 | unsigned int); |
| 621 | void (*output_data)(ide_drive_t *, struct request *, void *, |
| 622 | unsigned int); |
| 623 | }; |
| 624 | |
| 625 | extern const struct ide_tp_ops default_tp_ops; |
| 626 | |
Bartlomiej Zolnierkiewicz | 39b986a | 2008-08-05 18:16:57 +0200 | [diff] [blame] | 627 | /** |
| 628 | * struct ide_port_ops - IDE port operations |
| 629 | * |
| 630 | * @init_dev: host specific initialization of a device |
| 631 | * @set_pio_mode: routine to program host for PIO mode |
| 632 | * @set_dma_mode: routine to program host for DMA mode |
| 633 | * @selectproc: tweaks hardware to select drive |
| 634 | * @reset_poll: chipset polling based on hba specifics |
| 635 | * @pre_reset: chipset specific changes to default for device-hba resets |
| 636 | * @resetproc: routine to reset controller after a disk reset |
| 637 | * @maskproc: special host masking for drive selection |
| 638 | * @quirkproc: check host's drive quirk list |
| 639 | * |
| 640 | * @mdma_filter: filter MDMA modes |
| 641 | * @udma_filter: filter UDMA modes |
| 642 | * |
| 643 | * @cable_detect: detect cable type |
| 644 | */ |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 645 | struct ide_port_ops { |
Bartlomiej Zolnierkiewicz | e6d95bd | 2008-07-16 20:33:42 +0200 | [diff] [blame] | 646 | void (*init_dev)(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 647 | void (*set_pio_mode)(ide_drive_t *, const u8); |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 648 | void (*set_dma_mode)(ide_drive_t *, const u8); |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 649 | void (*selectproc)(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 650 | int (*reset_poll)(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 651 | void (*pre_reset)(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 652 | void (*resetproc)(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 653 | void (*maskproc)(ide_drive_t *, int); |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 654 | void (*quirkproc)(ide_drive_t *); |
| 655 | |
| 656 | u8 (*mdma_filter)(ide_drive_t *); |
| 657 | u8 (*udma_filter)(ide_drive_t *); |
| 658 | |
| 659 | u8 (*cable_detect)(struct hwif_s *); |
| 660 | }; |
| 661 | |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 662 | struct ide_dma_ops { |
| 663 | void (*dma_host_set)(struct ide_drive_s *, int); |
| 664 | int (*dma_setup)(struct ide_drive_s *); |
| 665 | void (*dma_exec_cmd)(struct ide_drive_s *, u8); |
| 666 | void (*dma_start)(struct ide_drive_s *); |
| 667 | int (*dma_end)(struct ide_drive_s *); |
| 668 | int (*dma_test_irq)(struct ide_drive_s *); |
| 669 | void (*dma_lost_irq)(struct ide_drive_s *); |
| 670 | void (*dma_timeout)(struct ide_drive_s *); |
| 671 | }; |
| 672 | |
Bartlomiej Zolnierkiewicz | 08da591 | 2008-07-24 22:53:15 +0200 | [diff] [blame] | 673 | struct ide_host; |
| 674 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | typedef struct hwif_s { |
| 676 | struct hwif_s *next; /* for linked-list in ide_hwgroup_t */ |
| 677 | struct hwif_s *mate; /* other hwif from same PCI chip */ |
| 678 | struct hwgroup_s *hwgroup; /* actually (ide_hwgroup_t *) */ |
| 679 | struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ |
| 680 | |
Bartlomiej Zolnierkiewicz | 08da591 | 2008-07-24 22:53:15 +0200 | [diff] [blame] | 681 | struct ide_host *host; |
| 682 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | char name[6]; /* name of interface, eg. "ide0" */ |
| 684 | |
Bartlomiej Zolnierkiewicz | 4c3032d | 2008-04-27 15:38:32 +0200 | [diff] [blame] | 685 | struct ide_io_ports io_ports; |
| 686 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | unsigned long sata_scr[SATA_NR_PORTS]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 688 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | ide_drive_t drives[MAX_DRIVES]; /* drive info */ |
| 690 | |
| 691 | u8 major; /* our major number */ |
| 692 | u8 index; /* 0 for ide0; 1 for ide1; ... */ |
| 693 | u8 channel; /* for dual-port chips: 0=primary, 1=secondary */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | |
David Miller | e95d9c6 | 2007-10-22 02:09:00 -0700 | [diff] [blame] | 695 | u32 host_flags; |
Bartlomiej Zolnierkiewicz | 6a824c9 | 2007-07-20 01:11:58 +0200 | [diff] [blame] | 696 | |
Bartlomiej Zolnierkiewicz | 4099d14 | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 697 | u8 pio_mask; |
| 698 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 699 | u8 ultra_mask; |
| 700 | u8 mwdma_mask; |
| 701 | u8 swdma_mask; |
| 702 | |
Bartlomiej Zolnierkiewicz | 49521f9 | 2007-07-09 23:17:58 +0200 | [diff] [blame] | 703 | u8 cbl; /* cable type */ |
| 704 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | hwif_chipset_t chipset; /* sub-module for tuning.. */ |
| 706 | |
Bartlomiej Zolnierkiewicz | 3650165 | 2008-02-01 23:09:31 +0100 | [diff] [blame] | 707 | struct device *dev; |
| 708 | |
Bartlomiej Zolnierkiewicz | 18e181f | 2007-10-20 00:32:32 +0200 | [diff] [blame] | 709 | ide_ack_intr_t *ack_intr; |
| 710 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | void (*rw_disk)(ide_drive_t *, struct request *); |
| 712 | |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 713 | const struct ide_tp_ops *tp_ops; |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 714 | const struct ide_port_ops *port_ops; |
Bartlomiej Zolnierkiewicz | f37afda | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 715 | const struct ide_dma_ops *dma_ops; |
Bartlomiej Zolnierkiewicz | bfa14b4 | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 716 | |
Albert Lee | f0dd871 | 2007-02-17 02:40:21 +0100 | [diff] [blame] | 717 | void (*ide_dma_clear_irq)(ide_drive_t *drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 719 | /* dma physical region descriptor table (cpu view) */ |
| 720 | unsigned int *dmatable_cpu; |
| 721 | /* dma physical region descriptor table (dma view) */ |
| 722 | dma_addr_t dmatable_dma; |
| 723 | /* Scatter-gather list used to build the above */ |
| 724 | struct scatterlist *sg_table; |
| 725 | int sg_max_nents; /* Maximum number of entries in it */ |
| 726 | int sg_nents; /* Current number of entries in it */ |
| 727 | int sg_dma_direction; /* dma transfer direction */ |
| 728 | |
| 729 | /* data phase of the active command (currently only valid for PIO/DMA) */ |
| 730 | int data_phase; |
| 731 | |
| 732 | unsigned int nsect; |
| 733 | unsigned int nleft; |
Jens Axboe | 55c16a7 | 2007-07-25 08:13:56 +0200 | [diff] [blame] | 734 | struct scatterlist *cursg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | unsigned int cursg_ofs; |
| 736 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | int rqsize; /* max sectors per request */ |
| 738 | int irq; /* our irq number */ |
| 739 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | unsigned long dma_base; /* base addr for dma ports */ |
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 | unsigned long config_data; /* for use by chipset-specific code */ |
| 743 | unsigned long select_data; /* for use by chipset-specific code */ |
| 744 | |
Sergei Shtylylov | 020e322 | 2006-10-03 01:14:13 -0700 | [diff] [blame] | 745 | unsigned long extra_base; /* extra addr for dma ports */ |
| 746 | unsigned extra_ports; /* number of extra dma ports */ |
| 747 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | unsigned present : 1; /* this interface exists */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | unsigned serialized : 1; /* serialized all channel operation */ |
| 750 | unsigned sharing_irq: 1; /* 1 = sharing irq with another hwif */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 751 | unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */ |
| 752 | |
Bartlomiej Zolnierkiewicz | f74c914 | 2008-04-18 00:46:23 +0200 | [diff] [blame] | 753 | struct device gendev; |
| 754 | struct device *portdev; |
| 755 | |
Aleksey Makarov | f36d402 | 2006-01-09 15:59:27 -0800 | [diff] [blame] | 756 | struct completion gendev_rel_comp; /* To deal with device release() */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 757 | |
| 758 | void *hwif_data; /* extra hwif data */ |
| 759 | |
Hannes Reinecke | e3a59b4 | 2007-02-07 18:19:37 +0100 | [diff] [blame] | 760 | #ifdef CONFIG_BLK_DEV_IDEACPI |
| 761 | struct ide_acpi_hwif_link *acpidata; |
| 762 | #endif |
Ravikiran G Thirumalai | 22fc6ec | 2006-01-08 01:01:27 -0800 | [diff] [blame] | 763 | } ____cacheline_internodealigned_in_smp ide_hwif_t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 765 | struct ide_host { |
| 766 | ide_hwif_t *ports[MAX_HWIFS]; |
| 767 | unsigned int n_ports; |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 768 | struct device *dev[2]; |
Bartlomiej Zolnierkiewicz | feb22b7 | 2008-10-10 22:39:32 +0200 | [diff] [blame] | 769 | unsigned int (*init_chipset)(struct pci_dev *); |
Bartlomiej Zolnierkiewicz | ef0b042 | 2008-07-24 22:53:19 +0200 | [diff] [blame] | 770 | unsigned long host_flags; |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 771 | void *host_priv; |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 772 | }; |
| 773 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | /* |
| 775 | * internal ide interrupt handler type |
| 776 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | typedef ide_startstop_t (ide_handler_t)(ide_drive_t *); |
| 778 | typedef int (ide_expiry_t)(ide_drive_t *); |
| 779 | |
Borislav Petkov | 0eea645 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 780 | /* used by ide-cd, ide-floppy, etc. */ |
Bartlomiej Zolnierkiewicz | 9567b34 | 2008-04-28 23:44:36 +0200 | [diff] [blame] | 781 | typedef void (xfer_func_t)(ide_drive_t *, struct request *rq, void *, unsigned); |
Borislav Petkov | 0eea645 | 2008-02-02 19:56:36 +0100 | [diff] [blame] | 782 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 783 | typedef struct hwgroup_s { |
| 784 | /* irq handler, if active */ |
| 785 | ide_startstop_t (*handler)(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | a6fbb1c | 2008-02-01 23:09:35 +0100 | [diff] [blame] | 786 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 787 | /* BOOL: protects all fields below */ |
| 788 | volatile int busy; |
| 789 | /* BOOL: wake us up on timer expiry */ |
| 790 | unsigned int sleeping : 1; |
| 791 | /* BOOL: polling active & poll_timeout field valid */ |
| 792 | unsigned int polling : 1; |
Alan Cox | 913759a | 2006-10-03 01:14:33 -0700 | [diff] [blame] | 793 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 794 | /* current drive */ |
| 795 | ide_drive_t *drive; |
| 796 | /* ptr to current hwif in linked-list */ |
| 797 | ide_hwif_t *hwif; |
| 798 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | /* current request */ |
| 800 | struct request *rq; |
Bartlomiej Zolnierkiewicz | a6fbb1c | 2008-02-01 23:09:35 +0100 | [diff] [blame] | 801 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 802 | /* failsafe timer */ |
| 803 | struct timer_list timer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 804 | /* timeout value during long polls */ |
| 805 | unsigned long poll_timeout; |
| 806 | /* queried upon timeouts */ |
| 807 | int (*expiry)(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | a6fbb1c | 2008-02-01 23:09:35 +0100 | [diff] [blame] | 808 | |
Suleiman Souhlal | 2345031 | 2007-04-10 22:38:37 +0200 | [diff] [blame] | 809 | int req_gen; |
| 810 | int req_gen_timer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | } ide_hwgroup_t; |
| 812 | |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 813 | typedef struct ide_driver_s ide_driver_t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 814 | |
Matthias Kaehlcke | f9383c4 | 2007-07-09 23:17:56 +0200 | [diff] [blame] | 815 | extern struct mutex ide_setting_mtx; |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 816 | |
Elias Oltmanns | 92f1f8f | 2008-10-10 22:39:40 +0200 | [diff] [blame] | 817 | /* |
| 818 | * configurable drive settings |
| 819 | */ |
| 820 | |
| 821 | #define DS_SYNC (1 << 0) |
| 822 | |
| 823 | struct ide_devset { |
| 824 | int (*get)(ide_drive_t *); |
| 825 | int (*set)(ide_drive_t *, int); |
| 826 | unsigned int flags; |
| 827 | }; |
| 828 | |
| 829 | #define __DEVSET(_flags, _get, _set) { \ |
| 830 | .flags = _flags, \ |
| 831 | .get = _get, \ |
| 832 | .set = _set, \ |
| 833 | } |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 834 | |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 835 | #define ide_devset_get(name, field) \ |
Elias Oltmanns | 92f1f8f | 2008-10-10 22:39:40 +0200 | [diff] [blame] | 836 | static int get_##name(ide_drive_t *drive) \ |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 837 | { \ |
| 838 | return drive->field; \ |
| 839 | } |
| 840 | |
| 841 | #define ide_devset_set(name, field) \ |
Elias Oltmanns | 92f1f8f | 2008-10-10 22:39:40 +0200 | [diff] [blame] | 842 | static int set_##name(ide_drive_t *drive, int arg) \ |
Bartlomiej Zolnierkiewicz | 8185d5a | 2008-10-10 22:39:28 +0200 | [diff] [blame] | 843 | { \ |
| 844 | drive->field = arg; \ |
| 845 | return 0; \ |
| 846 | } |
| 847 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 848 | #define ide_devset_get_flag(name, flag) \ |
| 849 | static int get_##name(ide_drive_t *drive) \ |
| 850 | { \ |
| 851 | return !!(drive->dev_flags & flag); \ |
| 852 | } |
| 853 | |
| 854 | #define ide_devset_set_flag(name, flag) \ |
| 855 | static int set_##name(ide_drive_t *drive, int arg) \ |
| 856 | { \ |
| 857 | if (arg) \ |
| 858 | drive->dev_flags |= flag; \ |
| 859 | else \ |
| 860 | drive->dev_flags &= ~flag; \ |
| 861 | return 0; \ |
| 862 | } |
| 863 | |
Elias Oltmanns | 92f1f8f | 2008-10-10 22:39:40 +0200 | [diff] [blame] | 864 | #define __IDE_DEVSET(_name, _flags, _get, _set) \ |
| 865 | const struct ide_devset ide_devset_##_name = \ |
| 866 | __DEVSET(_flags, _get, _set) |
| 867 | |
| 868 | #define IDE_DEVSET(_name, _flags, _get, _set) \ |
| 869 | static __IDE_DEVSET(_name, _flags, _get, _set) |
| 870 | |
| 871 | #define ide_devset_rw(_name, _func) \ |
| 872 | IDE_DEVSET(_name, 0, get_##_func, set_##_func) |
| 873 | |
| 874 | #define ide_devset_w(_name, _func) \ |
| 875 | IDE_DEVSET(_name, 0, NULL, set_##_func) |
| 876 | |
| 877 | #define ide_devset_rw_sync(_name, _func) \ |
| 878 | IDE_DEVSET(_name, DS_SYNC, get_##_func, set_##_func) |
| 879 | |
| 880 | #define ide_decl_devset(_name) \ |
| 881 | extern const struct ide_devset ide_devset_##_name |
| 882 | |
| 883 | ide_decl_devset(io_32bit); |
| 884 | ide_decl_devset(keepsettings); |
| 885 | ide_decl_devset(pio_mode); |
| 886 | ide_decl_devset(unmaskirq); |
| 887 | ide_decl_devset(using_dma); |
| 888 | |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 889 | #ifdef CONFIG_IDE_PROC_FS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 890 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 891 | * /proc/ide interface |
| 892 | */ |
Elias Oltmanns | 92f1f8f | 2008-10-10 22:39:40 +0200 | [diff] [blame] | 893 | |
| 894 | #define ide_devset_rw_field(_name, _field) \ |
| 895 | ide_devset_get(_name, _field); \ |
| 896 | ide_devset_set(_name, _field); \ |
| 897 | IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name) |
| 898 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 899 | #define ide_devset_rw_flag(_name, _field) \ |
| 900 | ide_devset_get_flag(_name, _field); \ |
| 901 | ide_devset_set_flag(_name, _field); \ |
| 902 | IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name) |
| 903 | |
Elias Oltmanns | 92f1f8f | 2008-10-10 22:39:40 +0200 | [diff] [blame] | 904 | struct ide_proc_devset { |
| 905 | const char *name; |
| 906 | const struct ide_devset *setting; |
| 907 | int min, max; |
| 908 | int (*mulf)(ide_drive_t *); |
| 909 | int (*divf)(ide_drive_t *); |
| 910 | }; |
| 911 | |
| 912 | #define __IDE_PROC_DEVSET(_name, _min, _max, _mulf, _divf) { \ |
| 913 | .name = __stringify(_name), \ |
| 914 | .setting = &ide_devset_##_name, \ |
| 915 | .min = _min, \ |
| 916 | .max = _max, \ |
| 917 | .mulf = _mulf, \ |
| 918 | .divf = _divf, \ |
| 919 | } |
| 920 | |
| 921 | #define IDE_PROC_DEVSET(_name, _min, _max) \ |
| 922 | __IDE_PROC_DEVSET(_name, _min, _max, NULL, NULL) |
| 923 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 924 | typedef struct { |
| 925 | const char *name; |
| 926 | mode_t mode; |
| 927 | read_proc_t *read_proc; |
| 928 | write_proc_t *write_proc; |
| 929 | } ide_proc_entry_t; |
| 930 | |
Bartlomiej Zolnierkiewicz | ecfd80e | 2007-05-10 00:01:09 +0200 | [diff] [blame] | 931 | void proc_ide_create(void); |
| 932 | void proc_ide_destroy(void); |
Bartlomiej Zolnierkiewicz | 5cbf79c | 2007-05-10 00:01:11 +0200 | [diff] [blame] | 933 | void ide_proc_register_port(ide_hwif_t *); |
Bartlomiej Zolnierkiewicz | d9270a3 | 2008-02-02 19:56:43 +0100 | [diff] [blame] | 934 | void ide_proc_port_register_devices(ide_hwif_t *); |
Bartlomiej Zolnierkiewicz | 5b0c4b3 | 2008-04-18 00:46:22 +0200 | [diff] [blame] | 935 | void ide_proc_unregister_device(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | 5cbf79c | 2007-05-10 00:01:11 +0200 | [diff] [blame] | 936 | void ide_proc_unregister_port(ide_hwif_t *); |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 937 | void ide_proc_register_driver(ide_drive_t *, ide_driver_t *); |
| 938 | void ide_proc_unregister_driver(ide_drive_t *, ide_driver_t *); |
| 939 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 940 | read_proc_t proc_ide_read_capacity; |
| 941 | read_proc_t proc_ide_read_geometry; |
| 942 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 943 | /* |
| 944 | * Standard exit stuff: |
| 945 | */ |
| 946 | #define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) \ |
| 947 | { \ |
| 948 | len -= off; \ |
| 949 | if (len < count) { \ |
| 950 | *eof = 1; \ |
| 951 | if (len <= 0) \ |
| 952 | return 0; \ |
| 953 | } else \ |
| 954 | len = count; \ |
| 955 | *start = page + off; \ |
| 956 | return len; \ |
| 957 | } |
| 958 | #else |
Bartlomiej Zolnierkiewicz | ecfd80e | 2007-05-10 00:01:09 +0200 | [diff] [blame] | 959 | static inline void proc_ide_create(void) { ; } |
| 960 | static inline void proc_ide_destroy(void) { ; } |
Bartlomiej Zolnierkiewicz | 5cbf79c | 2007-05-10 00:01:11 +0200 | [diff] [blame] | 961 | static inline void ide_proc_register_port(ide_hwif_t *hwif) { ; } |
Bartlomiej Zolnierkiewicz | d9270a3 | 2008-02-02 19:56:43 +0100 | [diff] [blame] | 962 | static inline void ide_proc_port_register_devices(ide_hwif_t *hwif) { ; } |
Bartlomiej Zolnierkiewicz | 5b0c4b3 | 2008-04-18 00:46:22 +0200 | [diff] [blame] | 963 | static inline void ide_proc_unregister_device(ide_drive_t *drive) { ; } |
Bartlomiej Zolnierkiewicz | 5cbf79c | 2007-05-10 00:01:11 +0200 | [diff] [blame] | 964 | static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; } |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 965 | static inline void ide_proc_register_driver(ide_drive_t *drive, ide_driver_t *driver) { ; } |
| 966 | static inline void ide_proc_unregister_driver(ide_drive_t *drive, ide_driver_t *driver) { ; } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 967 | #define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) return 0; |
| 968 | #endif |
| 969 | |
Borislav Petkov | e1c7c46 | 2008-10-13 21:39:35 +0200 | [diff] [blame] | 970 | enum { |
| 971 | /* enter/exit functions */ |
| 972 | IDE_DBG_FUNC = (1 << 0), |
| 973 | /* sense key/asc handling */ |
| 974 | IDE_DBG_SENSE = (1 << 1), |
| 975 | /* packet commands handling */ |
| 976 | IDE_DBG_PC = (1 << 2), |
| 977 | /* request handling */ |
| 978 | IDE_DBG_RQ = (1 << 3), |
| 979 | /* driver probing/setup */ |
| 980 | IDE_DBG_PROBE = (1 << 4), |
| 981 | }; |
| 982 | |
| 983 | /* DRV_NAME has to be defined in the driver before using the macro below */ |
| 984 | #define __ide_debug_log(lvl, fmt, args...) \ |
| 985 | { \ |
| 986 | if (unlikely(drive->debug_mask & lvl)) \ |
| 987 | printk(KERN_INFO DRV_NAME ": " fmt, ## args); \ |
| 988 | } |
| 989 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 990 | /* |
Bartlomiej Zolnierkiewicz | 0d346ba | 2008-10-13 21:39:38 +0200 | [diff] [blame^] | 991 | * Power Management state machine (rq->pm->pm_step). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 992 | * |
Bartlomiej Zolnierkiewicz | 0d346ba | 2008-10-13 21:39:38 +0200 | [diff] [blame^] | 993 | * For each step, the core calls ide_start_power_step() first. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 994 | * This can return: |
| 995 | * - ide_stopped : In this case, the core calls us back again unless |
| 996 | * step have been set to ide_power_state_completed. |
| 997 | * - ide_started : In this case, the channel is left busy until an |
| 998 | * async event (interrupt) occurs. |
Bartlomiej Zolnierkiewicz | 0d346ba | 2008-10-13 21:39:38 +0200 | [diff] [blame^] | 999 | * Typically, ide_start_power_step() will issue a taskfile request with |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1000 | * do_rw_taskfile(). |
| 1001 | * |
Bartlomiej Zolnierkiewicz | 0d346ba | 2008-10-13 21:39:38 +0200 | [diff] [blame^] | 1002 | * Upon reception of the interrupt, the core will call ide_complete_power_step() |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1003 | * with the error code if any. This routine should update the step value |
| 1004 | * and return. It should not start a new request. The core will call |
Bartlomiej Zolnierkiewicz | 0d346ba | 2008-10-13 21:39:38 +0200 | [diff] [blame^] | 1005 | * ide_start_power_step() for the new step value, unless step have been |
| 1006 | * set to IDE_PM_COMPLETED. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1007 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | enum { |
Bartlomiej Zolnierkiewicz | 0d346ba | 2008-10-13 21:39:38 +0200 | [diff] [blame^] | 1009 | IDE_PM_START_SUSPEND, |
| 1010 | IDE_PM_FLUSH_CACHE = IDE_PM_START_SUSPEND, |
| 1011 | IDE_PM_STANDBY, |
| 1012 | |
| 1013 | IDE_PM_START_RESUME, |
| 1014 | IDE_PM_RESTORE_PIO = IDE_PM_START_RESUME, |
| 1015 | IDE_PM_IDLE, |
| 1016 | IDE_PM_RESTORE_DMA, |
| 1017 | |
| 1018 | IDE_PM_COMPLETED, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1019 | }; |
| 1020 | |
| 1021 | /* |
| 1022 | * Subdrivers support. |
Laurent Riffard | 4ef3b8f | 2005-11-18 22:15:40 +0100 | [diff] [blame] | 1023 | * |
| 1024 | * The gendriver.owner field should be set to the module owner of this driver. |
| 1025 | * 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] | 1026 | */ |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 1027 | struct ide_driver_s { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1028 | const char *version; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1029 | ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t); |
| 1030 | int (*end_request)(ide_drive_t *, int, int); |
| 1031 | ide_startstop_t (*error)(ide_drive_t *, struct request *rq, u8, u8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1032 | struct device_driver gen_driver; |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 1033 | int (*probe)(ide_drive_t *); |
| 1034 | void (*remove)(ide_drive_t *); |
Lee Trager | 0d2157f | 2007-06-08 15:14:30 +0200 | [diff] [blame] | 1035 | void (*resume)(ide_drive_t *); |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 1036 | void (*shutdown)(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 1037 | #ifdef CONFIG_IDE_PROC_FS |
Elias Oltmanns | 92f1f8f | 2008-10-10 22:39:40 +0200 | [diff] [blame] | 1038 | ide_proc_entry_t *proc; |
| 1039 | const struct ide_proc_devset *settings; |
Bartlomiej Zolnierkiewicz | 7662d04 | 2007-05-10 00:01:10 +0200 | [diff] [blame] | 1040 | #endif |
| 1041 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1042 | |
Russell King | 4031bbe | 2006-01-06 11:41:00 +0000 | [diff] [blame] | 1043 | #define to_ide_driver(drv) container_of(drv, ide_driver_t, gen_driver) |
| 1044 | |
Bartlomiej Zolnierkiewicz | 08da591 | 2008-07-24 22:53:15 +0200 | [diff] [blame] | 1045 | int ide_device_get(ide_drive_t *); |
| 1046 | void ide_device_put(ide_drive_t *); |
| 1047 | |
Bartlomiej Zolnierkiewicz | aa768773 | 2008-10-10 22:39:33 +0200 | [diff] [blame] | 1048 | struct ide_ioctl_devset { |
| 1049 | unsigned int get_ioctl; |
| 1050 | unsigned int set_ioctl; |
Elias Oltmanns | 92f1f8f | 2008-10-10 22:39:40 +0200 | [diff] [blame] | 1051 | const struct ide_devset *setting; |
Bartlomiej Zolnierkiewicz | aa768773 | 2008-10-10 22:39:33 +0200 | [diff] [blame] | 1052 | }; |
| 1053 | |
| 1054 | int ide_setting_ioctl(ide_drive_t *, struct block_device *, unsigned int, |
| 1055 | unsigned long, const struct ide_ioctl_devset *); |
| 1056 | |
| 1057 | int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, |
| 1058 | unsigned, unsigned long); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1059 | |
Bartlomiej Zolnierkiewicz | ebae41a | 2008-04-27 15:38:29 +0200 | [diff] [blame] | 1060 | extern int ide_vlb_clk; |
| 1061 | extern int ide_pci_clk; |
| 1062 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1063 | 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] | 1064 | int ide_end_dequeued_request(ide_drive_t *drive, struct request *rq, |
| 1065 | int uptodate, int nr_sectors); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1066 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1067 | extern void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry); |
| 1068 | |
Bartlomiej Zolnierkiewicz | cd2a2d9 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 1069 | void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int, |
| 1070 | ide_expiry_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1071 | |
Bartlomiej Zolnierkiewicz | 1fc1425 | 2008-04-28 23:44:39 +0200 | [diff] [blame] | 1072 | void ide_execute_pkt_cmd(ide_drive_t *); |
| 1073 | |
Bartlomiej Zolnierkiewicz | 9f87abe | 2008-04-28 23:44:41 +0200 | [diff] [blame] | 1074 | void ide_pad_transfer(ide_drive_t *, int, int); |
| 1075 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1076 | ide_startstop_t __ide_error(ide_drive_t *, struct request *, u8, u8); |
| 1077 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1078 | ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat); |
| 1079 | |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 1080 | void ide_fix_driveid(u16 *); |
Bartlomiej Zolnierkiewicz | 0174511 | 2007-11-05 21:42:29 +0100 | [diff] [blame] | 1081 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1082 | extern void ide_fixstring(u8 *, const int, const int); |
| 1083 | |
Bartlomiej Zolnierkiewicz | b163f46 | 2008-10-10 22:39:23 +0200 | [diff] [blame] | 1084 | int ide_busy_sleep(ide_hwif_t *, unsigned long, int); |
| 1085 | |
Bartlomiej Zolnierkiewicz | 74af21c | 2007-10-13 17:47:49 +0200 | [diff] [blame] | 1086 | 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] | 1087 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1088 | extern ide_startstop_t ide_do_reset (ide_drive_t *); |
| 1089 | |
Elias Oltmanns | 92f1f8f | 2008-10-10 22:39:40 +0200 | [diff] [blame] | 1090 | extern int ide_devset_execute(ide_drive_t *drive, |
| 1091 | const struct ide_devset *setting, int arg); |
| 1092 | |
FUJITA Tomonori | 63f5abb | 2008-07-15 21:21:51 +0200 | [diff] [blame] | 1093 | extern void ide_do_drive_cmd(ide_drive_t *, struct request *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1094 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1095 | extern void ide_end_drive_cmd(ide_drive_t *, u8, u8); |
| 1096 | |
Bartlomiej Zolnierkiewicz | 9e42237 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 1097 | enum { |
| 1098 | IDE_TFLAG_LBA48 = (1 << 0), |
Bartlomiej Zolnierkiewicz | 74095a9 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 1099 | IDE_TFLAG_FLAGGED = (1 << 2), |
| 1100 | IDE_TFLAG_OUT_DATA = (1 << 3), |
| 1101 | IDE_TFLAG_OUT_HOB_FEATURE = (1 << 4), |
| 1102 | IDE_TFLAG_OUT_HOB_NSECT = (1 << 5), |
| 1103 | IDE_TFLAG_OUT_HOB_LBAL = (1 << 6), |
| 1104 | IDE_TFLAG_OUT_HOB_LBAM = (1 << 7), |
| 1105 | IDE_TFLAG_OUT_HOB_LBAH = (1 << 8), |
| 1106 | IDE_TFLAG_OUT_HOB = IDE_TFLAG_OUT_HOB_FEATURE | |
| 1107 | IDE_TFLAG_OUT_HOB_NSECT | |
| 1108 | IDE_TFLAG_OUT_HOB_LBAL | |
| 1109 | IDE_TFLAG_OUT_HOB_LBAM | |
| 1110 | IDE_TFLAG_OUT_HOB_LBAH, |
| 1111 | IDE_TFLAG_OUT_FEATURE = (1 << 9), |
| 1112 | IDE_TFLAG_OUT_NSECT = (1 << 10), |
| 1113 | IDE_TFLAG_OUT_LBAL = (1 << 11), |
| 1114 | IDE_TFLAG_OUT_LBAM = (1 << 12), |
| 1115 | IDE_TFLAG_OUT_LBAH = (1 << 13), |
| 1116 | IDE_TFLAG_OUT_TF = IDE_TFLAG_OUT_FEATURE | |
| 1117 | IDE_TFLAG_OUT_NSECT | |
| 1118 | IDE_TFLAG_OUT_LBAL | |
| 1119 | IDE_TFLAG_OUT_LBAM | |
| 1120 | IDE_TFLAG_OUT_LBAH, |
Bartlomiej Zolnierkiewicz | 807e35d | 2008-01-25 22:17:10 +0100 | [diff] [blame] | 1121 | IDE_TFLAG_OUT_DEVICE = (1 << 14), |
Bartlomiej Zolnierkiewicz | ac026ff | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 1122 | IDE_TFLAG_WRITE = (1 << 15), |
Bartlomiej Zolnierkiewicz | 866e2ec | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 1123 | IDE_TFLAG_FLAGGED_SET_IN_FLAGS = (1 << 16), |
| 1124 | IDE_TFLAG_IN_DATA = (1 << 17), |
Bartlomiej Zolnierkiewicz | 57d7366 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 1125 | IDE_TFLAG_CUSTOM_HANDLER = (1 << 18), |
Bartlomiej Zolnierkiewicz | f6e29e3 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 1126 | IDE_TFLAG_DMA_PIO_FALLBACK = (1 << 19), |
Bartlomiej Zolnierkiewicz | c2b57cd | 2008-01-25 22:17:17 +0100 | [diff] [blame] | 1127 | IDE_TFLAG_IN_HOB_FEATURE = (1 << 20), |
| 1128 | IDE_TFLAG_IN_HOB_NSECT = (1 << 21), |
| 1129 | IDE_TFLAG_IN_HOB_LBAL = (1 << 22), |
| 1130 | IDE_TFLAG_IN_HOB_LBAM = (1 << 23), |
| 1131 | IDE_TFLAG_IN_HOB_LBAH = (1 << 24), |
| 1132 | IDE_TFLAG_IN_HOB_LBA = IDE_TFLAG_IN_HOB_LBAL | |
| 1133 | IDE_TFLAG_IN_HOB_LBAM | |
| 1134 | IDE_TFLAG_IN_HOB_LBAH, |
| 1135 | IDE_TFLAG_IN_HOB = IDE_TFLAG_IN_HOB_FEATURE | |
| 1136 | IDE_TFLAG_IN_HOB_NSECT | |
| 1137 | IDE_TFLAG_IN_HOB_LBA, |
Bartlomiej Zolnierkiewicz | 92eb438 | 2008-07-23 19:55:53 +0200 | [diff] [blame] | 1138 | IDE_TFLAG_IN_FEATURE = (1 << 1), |
Bartlomiej Zolnierkiewicz | c2b57cd | 2008-01-25 22:17:17 +0100 | [diff] [blame] | 1139 | IDE_TFLAG_IN_NSECT = (1 << 25), |
| 1140 | IDE_TFLAG_IN_LBAL = (1 << 26), |
| 1141 | IDE_TFLAG_IN_LBAM = (1 << 27), |
| 1142 | IDE_TFLAG_IN_LBAH = (1 << 28), |
| 1143 | IDE_TFLAG_IN_LBA = IDE_TFLAG_IN_LBAL | |
| 1144 | IDE_TFLAG_IN_LBAM | |
| 1145 | IDE_TFLAG_IN_LBAH, |
| 1146 | IDE_TFLAG_IN_TF = IDE_TFLAG_IN_NSECT | |
| 1147 | IDE_TFLAG_IN_LBA, |
| 1148 | IDE_TFLAG_IN_DEVICE = (1 << 29), |
Bartlomiej Zolnierkiewicz | 657cc1a | 2008-01-26 20:13:10 +0100 | [diff] [blame] | 1149 | IDE_TFLAG_HOB = IDE_TFLAG_OUT_HOB | |
| 1150 | IDE_TFLAG_IN_HOB, |
| 1151 | IDE_TFLAG_TF = IDE_TFLAG_OUT_TF | |
| 1152 | IDE_TFLAG_IN_TF, |
| 1153 | IDE_TFLAG_DEVICE = IDE_TFLAG_OUT_DEVICE | |
| 1154 | IDE_TFLAG_IN_DEVICE, |
Tejun Heo | 35cf2b9 | 2008-01-26 20:13:10 +0100 | [diff] [blame] | 1155 | /* force 16-bit I/O operations */ |
| 1156 | IDE_TFLAG_IO_16BIT = (1 << 30), |
Bartlomiej Zolnierkiewicz | 395d8ef | 2008-02-11 00:32:14 +0100 | [diff] [blame] | 1157 | /* ide_task_t was allocated using kmalloc() */ |
| 1158 | IDE_TFLAG_DYN = (1 << 31), |
Bartlomiej Zolnierkiewicz | 9e42237 | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 1159 | }; |
| 1160 | |
Bartlomiej Zolnierkiewicz | 650d841 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 1161 | struct ide_taskfile { |
| 1162 | u8 hob_data; /* 0: high data byte (for TASKFILE IOCTL) */ |
| 1163 | |
| 1164 | u8 hob_feature; /* 1-5: additional data to support LBA48 */ |
| 1165 | u8 hob_nsect; |
| 1166 | u8 hob_lbal; |
| 1167 | u8 hob_lbam; |
| 1168 | u8 hob_lbah; |
| 1169 | |
| 1170 | u8 data; /* 6: low data byte (for TASKFILE IOCTL) */ |
| 1171 | |
| 1172 | union { /* 7: */ |
| 1173 | u8 error; /* read: error */ |
| 1174 | u8 feature; /* write: feature */ |
| 1175 | }; |
| 1176 | |
| 1177 | u8 nsect; /* 8: number of sectors */ |
| 1178 | u8 lbal; /* 9: LBA low */ |
| 1179 | u8 lbam; /* 10: LBA mid */ |
| 1180 | u8 lbah; /* 11: LBA high */ |
| 1181 | |
| 1182 | u8 device; /* 12: device select */ |
| 1183 | |
| 1184 | union { /* 13: */ |
| 1185 | u8 status; /* read: status */ |
| 1186 | u8 command; /* write: command */ |
| 1187 | }; |
| 1188 | }; |
| 1189 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1190 | typedef struct ide_task_s { |
Bartlomiej Zolnierkiewicz | 650d841 | 2008-01-25 22:17:06 +0100 | [diff] [blame] | 1191 | union { |
| 1192 | struct ide_taskfile tf; |
| 1193 | u8 tf_array[14]; |
| 1194 | }; |
Bartlomiej Zolnierkiewicz | 866e2ec | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 1195 | u32 tf_flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1196 | int data_phase; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1197 | struct request *rq; /* copy of request */ |
| 1198 | void *special; /* valid_t generally */ |
| 1199 | } ide_task_t; |
| 1200 | |
Bartlomiej Zolnierkiewicz | 089c5c7 | 2008-04-28 23:44:39 +0200 | [diff] [blame] | 1201 | void ide_tf_dump(const char *, struct ide_taskfile *); |
| 1202 | |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 1203 | void ide_exec_command(ide_hwif_t *, u8); |
| 1204 | u8 ide_read_status(ide_hwif_t *); |
| 1205 | u8 ide_read_altstatus(ide_hwif_t *); |
| 1206 | u8 ide_read_sff_dma_status(ide_hwif_t *); |
| 1207 | |
| 1208 | void ide_set_irq(ide_hwif_t *, int); |
| 1209 | |
| 1210 | void ide_tf_load(ide_drive_t *, ide_task_t *); |
| 1211 | void ide_tf_read(ide_drive_t *, ide_task_t *); |
| 1212 | |
| 1213 | void ide_input_data(ide_drive_t *, struct request *, void *, unsigned int); |
| 1214 | void ide_output_data(ide_drive_t *, struct request *, void *, unsigned int); |
| 1215 | |
Bartlomiej Zolnierkiewicz | acaa0f5 | 2008-10-10 22:39:36 +0200 | [diff] [blame] | 1216 | int ide_io_buffers(ide_drive_t *, struct ide_atapi_pc *, unsigned int, int); |
| 1217 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1218 | extern void SELECT_DRIVE(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | ed4af48 | 2008-07-15 21:21:48 +0200 | [diff] [blame] | 1219 | void SELECT_MASK(ide_drive_t *, int); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1220 | |
Bartlomiej Zolnierkiewicz | 92eb438 | 2008-07-23 19:55:53 +0200 | [diff] [blame] | 1221 | u8 ide_read_error(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | 1823649 | 2008-07-23 19:55:54 +0200 | [diff] [blame] | 1222 | void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *); |
Bartlomiej Zolnierkiewicz | 92eb438 | 2008-07-23 19:55:53 +0200 | [diff] [blame] | 1223 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1224 | extern int drive_is_ready(ide_drive_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1225 | |
Bartlomiej Zolnierkiewicz | 2fc5738 | 2008-01-25 22:17:13 +0100 | [diff] [blame] | 1226 | void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8); |
| 1227 | |
Bartlomiej Zolnierkiewicz | 51509ee | 2008-10-10 22:39:34 +0200 | [diff] [blame] | 1228 | int ide_check_atapi_device(ide_drive_t *, const char *); |
| 1229 | |
Bartlomiej Zolnierkiewicz | 7bf7420 | 2008-10-10 22:39:37 +0200 | [diff] [blame] | 1230 | void ide_init_pc(struct ide_atapi_pc *); |
| 1231 | |
Bartlomiej Zolnierkiewicz | 7645c15 | 2008-10-10 22:39:37 +0200 | [diff] [blame] | 1232 | /* |
| 1233 | * Special requests for ide-tape block device strategy routine. |
| 1234 | * |
| 1235 | * In order to service a character device command, we add special requests to |
| 1236 | * the tail of our block device request queue and wait for their completion. |
| 1237 | */ |
| 1238 | enum { |
| 1239 | REQ_IDETAPE_PC1 = (1 << 0), /* packet command (first stage) */ |
| 1240 | REQ_IDETAPE_PC2 = (1 << 1), /* packet command (second stage) */ |
| 1241 | REQ_IDETAPE_READ = (1 << 2), |
| 1242 | REQ_IDETAPE_WRITE = (1 << 3), |
| 1243 | }; |
| 1244 | |
Bartlomiej Zolnierkiewicz | 2ac07d9 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 1245 | int ide_queue_pc_tail(ide_drive_t *, struct gendisk *, struct ide_atapi_pc *); |
Bartlomiej Zolnierkiewicz | 7645c15 | 2008-10-10 22:39:37 +0200 | [diff] [blame] | 1246 | |
Bartlomiej Zolnierkiewicz | de699ad | 2008-10-10 22:39:39 +0200 | [diff] [blame] | 1247 | int ide_do_test_unit_ready(ide_drive_t *, struct gendisk *); |
Bartlomiej Zolnierkiewicz | 0c8a6c7 | 2008-10-10 22:39:39 +0200 | [diff] [blame] | 1248 | int ide_do_start_stop(ide_drive_t *, struct gendisk *, int); |
Bartlomiej Zolnierkiewicz | 0578042 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 1249 | int ide_set_media_lock(ide_drive_t *, struct gendisk *, int); |
Bartlomiej Zolnierkiewicz | 6b0da28 | 2008-10-13 21:39:32 +0200 | [diff] [blame] | 1250 | void ide_create_request_sense_cmd(ide_drive_t *, struct ide_atapi_pc *); |
| 1251 | void ide_retry_pc(ide_drive_t *, struct gendisk *); |
Bartlomiej Zolnierkiewicz | 0578042 | 2008-10-10 22:39:38 +0200 | [diff] [blame] | 1252 | |
Bartlomiej Zolnierkiewicz | 844b946 | 2008-10-13 21:39:31 +0200 | [diff] [blame] | 1253 | static inline unsigned long ide_scsi_get_timeout(struct ide_atapi_pc *pc) |
| 1254 | { |
| 1255 | return max_t(unsigned long, WAIT_CMD, pc->timeout - jiffies); |
| 1256 | } |
| 1257 | |
| 1258 | int ide_scsi_expiry(ide_drive_t *); |
| 1259 | |
Bartlomiej Zolnierkiewicz | baf08f0 | 2008-10-13 21:39:32 +0200 | [diff] [blame] | 1260 | ide_startstop_t ide_issue_pc(ide_drive_t *, unsigned int, ide_expiry_t *); |
Bartlomiej Zolnierkiewicz | 594c16d | 2008-07-15 21:21:58 +0200 | [diff] [blame] | 1261 | |
Bartlomiej Zolnierkiewicz | f6e29e3 | 2008-01-25 22:17:16 +0100 | [diff] [blame] | 1262 | ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1263 | |
Tejun Heo | 4d7a984 | 2008-01-26 20:13:11 +0100 | [diff] [blame] | 1264 | void task_end_request(ide_drive_t *, struct request *, u8); |
| 1265 | |
Bartlomiej Zolnierkiewicz | ac026ff | 2008-01-25 22:17:14 +0100 | [diff] [blame] | 1266 | int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *, u16); |
Bartlomiej Zolnierkiewicz | 9a3c49b | 2008-01-25 22:17:07 +0100 | [diff] [blame] | 1267 | int ide_no_data_taskfile(ide_drive_t *, ide_task_t *); |
| 1268 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1269 | int ide_taskfile_ioctl(ide_drive_t *, unsigned int, unsigned long); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1270 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1271 | extern int ide_driveid_update(ide_drive_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1272 | extern int ide_config_drive_speed(ide_drive_t *, u8); |
| 1273 | extern u8 eighty_ninty_three (ide_drive_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1274 | extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *); |
| 1275 | |
| 1276 | extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout); |
| 1277 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1278 | extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout); |
| 1279 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1280 | extern void ide_timer_expiry(unsigned long); |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 1281 | extern irqreturn_t ide_intr(int irq, void *dev_id); |
Jens Axboe | 165125e | 2007-07-24 09:28:11 +0200 | [diff] [blame] | 1282 | extern void do_ide_request(struct request_queue *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1283 | |
| 1284 | void ide_init_disk(struct gendisk *, ide_drive_t *); |
| 1285 | |
Bartlomiej Zolnierkiewicz | 6d208b3 | 2007-05-10 00:01:11 +0200 | [diff] [blame] | 1286 | #ifdef CONFIG_IDEPCI_PCIBUS_ORDER |
Greg Kroah-Hartman | 725522b | 2007-01-15 11:50:02 -0800 | [diff] [blame] | 1287 | extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name); |
| 1288 | #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] | 1289 | #else |
| 1290 | #define ide_pci_register_driver(d) pci_register_driver(d) |
| 1291 | #endif |
| 1292 | |
Bartlomiej Zolnierkiewicz | c97c6ac | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 1293 | void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int, |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 1294 | hw_regs_t *, hw_regs_t **); |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 1295 | 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] | 1296 | |
Sergei Shtylyov | 8e882ba | 2008-02-11 00:32:14 +0100 | [diff] [blame] | 1297 | #ifdef CONFIG_BLK_DEV_IDEDMA_PCI |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 1298 | int ide_pci_set_master(struct pci_dev *, const char *); |
| 1299 | unsigned long ide_pci_dma_base(ide_hwif_t *, const struct ide_port_info *); |
Bartlomiej Zolnierkiewicz | ebb00fb | 2008-07-23 19:55:51 +0200 | [diff] [blame] | 1300 | int ide_pci_check_simplex(ide_hwif_t *, const struct ide_port_info *); |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 1301 | int ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *); |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 1302 | #else |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 1303 | static inline int ide_hwif_setup_dma(ide_hwif_t *hwif, |
| 1304 | const struct ide_port_info *d) |
| 1305 | { |
| 1306 | return -EINVAL; |
| 1307 | } |
Bartlomiej Zolnierkiewicz | c413b9b | 2008-02-02 19:56:31 +0100 | [diff] [blame] | 1308 | #endif |
| 1309 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1310 | typedef struct ide_pci_enablebit_s { |
| 1311 | u8 reg; /* byte pci reg holding the enable-bit */ |
| 1312 | u8 mask; /* mask to isolate the enable-bit */ |
| 1313 | u8 val; /* value of masked reg when "enabled" */ |
| 1314 | } ide_pci_enablebit_t; |
| 1315 | |
| 1316 | enum { |
| 1317 | /* Uses ISA control ports not PCI ones. */ |
Bartlomiej Zolnierkiewicz | a5d8c5c | 2007-07-20 01:11:55 +0200 | [diff] [blame] | 1318 | IDE_HFLAG_ISA_PORTS = (1 << 0), |
Bartlomiej Zolnierkiewicz | 6a824c9 | 2007-07-20 01:11:58 +0200 | [diff] [blame] | 1319 | /* single port device */ |
Bartlomiej Zolnierkiewicz | a5d8c5c | 2007-07-20 01:11:55 +0200 | [diff] [blame] | 1320 | IDE_HFLAG_SINGLE = (1 << 1), |
Bartlomiej Zolnierkiewicz | 6a824c9 | 2007-07-20 01:11:58 +0200 | [diff] [blame] | 1321 | /* don't use legacy PIO blacklist */ |
| 1322 | IDE_HFLAG_PIO_NO_BLACKLIST = (1 << 2), |
Bartlomiej Zolnierkiewicz | e277f91 | 2008-04-26 17:36:36 +0200 | [diff] [blame] | 1323 | /* set for the second port of QD65xx */ |
| 1324 | IDE_HFLAG_QD_2ND_PORT = (1 << 3), |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 1325 | /* use PIO8/9 for prefetch off/on */ |
| 1326 | IDE_HFLAG_ABUSE_PREFETCH = (1 << 4), |
| 1327 | /* use PIO6/7 for fast-devsel off/on */ |
| 1328 | IDE_HFLAG_ABUSE_FAST_DEVSEL = (1 << 5), |
| 1329 | /* use 100-102 and 200-202 PIO values to set DMA modes */ |
| 1330 | IDE_HFLAG_ABUSE_DMA_MODES = (1 << 6), |
Bartlomiej Zolnierkiewicz | aedea59 | 2007-10-13 17:47:50 +0200 | [diff] [blame] | 1331 | /* |
| 1332 | * keep DMA setting when programming PIO mode, may be used only |
| 1333 | * for hosts which have separate PIO and DMA timings (ie. PMAC) |
| 1334 | */ |
| 1335 | IDE_HFLAG_SET_PIO_MODE_KEEP_DMA = (1 << 7), |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 1336 | /* program host for the transfer mode after programming device */ |
| 1337 | IDE_HFLAG_POST_SET_MODE = (1 << 8), |
| 1338 | /* don't program host/device for the transfer mode ("smart" hosts) */ |
| 1339 | IDE_HFLAG_NO_SET_MODE = (1 << 9), |
Bartlomiej Zolnierkiewicz | 0ae2e17 | 2007-10-16 22:29:55 +0200 | [diff] [blame] | 1340 | /* trust BIOS for programming chipset/device for DMA */ |
| 1341 | IDE_HFLAG_TRUST_BIOS_FOR_DMA = (1 << 10), |
Bartlomiej Zolnierkiewicz | cafa027 | 2008-05-14 23:06:16 +0200 | [diff] [blame] | 1342 | /* host is CS5510/CS5520 */ |
| 1343 | IDE_HFLAG_CS5520 = (1 << 11), |
Bartlomiej Zolnierkiewicz | 33c1002 | 2007-10-19 00:30:06 +0200 | [diff] [blame] | 1344 | /* ATAPI DMA is unsupported */ |
| 1345 | IDE_HFLAG_NO_ATAPI_DMA = (1 << 12), |
Bartlomiej Zolnierkiewicz | 5e71d9c | 2008-04-26 17:36:35 +0200 | [diff] [blame] | 1346 | /* set if host is a "non-bootable" controller */ |
| 1347 | IDE_HFLAG_NON_BOOTABLE = (1 << 13), |
Bartlomiej Zolnierkiewicz | 47b6878 | 2007-10-19 00:30:06 +0200 | [diff] [blame] | 1348 | /* host doesn't support DMA */ |
| 1349 | IDE_HFLAG_NO_DMA = (1 << 14), |
| 1350 | /* check if host is PCI IDE device before allowing DMA */ |
| 1351 | IDE_HFLAG_NO_AUTODMA = (1 << 15), |
Bartlomiej Zolnierkiewicz | c5dd43e | 2008-04-28 23:44:37 +0200 | [diff] [blame] | 1352 | /* host uses MMIO */ |
| 1353 | IDE_HFLAG_MMIO = (1 << 16), |
Bartlomiej Zolnierkiewicz | 238e4f1 | 2007-10-19 00:30:07 +0200 | [diff] [blame] | 1354 | /* no LBA48 */ |
| 1355 | IDE_HFLAG_NO_LBA48 = (1 << 17), |
| 1356 | /* no LBA48 DMA */ |
| 1357 | IDE_HFLAG_NO_LBA48_DMA = (1 << 18), |
Bartlomiej Zolnierkiewicz | ed67b92 | 2007-10-19 00:30:10 +0200 | [diff] [blame] | 1358 | /* data FIFO is cleared by an error */ |
| 1359 | IDE_HFLAG_ERROR_STOPS_FIFO = (1 << 19), |
Bartlomiej Zolnierkiewicz | 1c51361 | 2007-10-19 00:30:10 +0200 | [diff] [blame] | 1360 | /* serialize ports */ |
| 1361 | IDE_HFLAG_SERIALIZE = (1 << 20), |
Bartlomiej Zolnierkiewicz | 3985ee3 | 2007-10-19 00:30:11 +0200 | [diff] [blame] | 1362 | /* use legacy IRQs */ |
| 1363 | IDE_HFLAG_LEGACY_IRQS = (1 << 21), |
Bartlomiej Zolnierkiewicz | 8acf28c | 2007-10-20 00:32:30 +0200 | [diff] [blame] | 1364 | /* force use of legacy IRQs */ |
| 1365 | IDE_HFLAG_FORCE_LEGACY_IRQS = (1 << 22), |
Bartlomiej Zolnierkiewicz | 272a370 | 2007-10-20 00:32:30 +0200 | [diff] [blame] | 1366 | /* limit LBA48 requests to 256 sectors */ |
| 1367 | IDE_HFLAG_RQSIZE_256 = (1 << 23), |
Bartlomiej Zolnierkiewicz | caea760 | 2007-10-20 00:32:30 +0200 | [diff] [blame] | 1368 | /* use 32-bit I/O ops */ |
| 1369 | IDE_HFLAG_IO_32BIT = (1 << 24), |
| 1370 | /* unmask IRQs */ |
| 1371 | IDE_HFLAG_UNMASK_IRQS = (1 << 25), |
Bartlomiej Zolnierkiewicz | 1fd1890 | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 1372 | /* serialize ports if DMA is possible (for sl82c105) */ |
| 1373 | IDE_HFLAG_SERIALIZE_DMA = (1 << 27), |
Bartlomiej Zolnierkiewicz | 8ac2b42 | 2008-02-01 23:09:30 +0100 | [diff] [blame] | 1374 | /* force host out of "simplex" mode */ |
| 1375 | IDE_HFLAG_CLEAR_SIMPLEX = (1 << 28), |
Bartlomiej Zolnierkiewicz | 4166c19 | 2008-02-01 23:09:30 +0100 | [diff] [blame] | 1376 | /* DSC overlap is unsupported */ |
| 1377 | IDE_HFLAG_NO_DSC = (1 << 29), |
Bartlomiej Zolnierkiewicz | 807b90d | 2008-02-02 19:56:40 +0100 | [diff] [blame] | 1378 | /* never use 32-bit I/O ops */ |
| 1379 | IDE_HFLAG_NO_IO_32BIT = (1 << 30), |
| 1380 | /* never unmask IRQs */ |
| 1381 | IDE_HFLAG_NO_UNMASK_IRQS = (1 << 31), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1382 | }; |
| 1383 | |
Bartlomiej Zolnierkiewicz | 7cab14a | 2007-10-19 00:30:06 +0200 | [diff] [blame] | 1384 | #ifdef CONFIG_BLK_DEV_OFFBOARD |
Bartlomiej Zolnierkiewicz | 7cab14a | 2007-10-19 00:30:06 +0200 | [diff] [blame] | 1385 | # define IDE_HFLAG_OFF_BOARD 0 |
Bartlomiej Zolnierkiewicz | 5e71d9c | 2008-04-26 17:36:35 +0200 | [diff] [blame] | 1386 | #else |
| 1387 | # define IDE_HFLAG_OFF_BOARD IDE_HFLAG_NON_BOOTABLE |
Bartlomiej Zolnierkiewicz | 7cab14a | 2007-10-19 00:30:06 +0200 | [diff] [blame] | 1388 | #endif |
| 1389 | |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 1390 | struct ide_port_info { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1391 | char *name; |
Bartlomiej Zolnierkiewicz | a326b02 | 2008-07-24 22:53:33 +0200 | [diff] [blame] | 1392 | unsigned int (*init_chipset)(struct pci_dev *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1393 | void (*init_iops)(ide_hwif_t *); |
| 1394 | void (*init_hwif)(ide_hwif_t *); |
Bartlomiej Zolnierkiewicz | b123f56 | 2008-04-26 22:25:22 +0200 | [diff] [blame] | 1395 | int (*init_dma)(ide_hwif_t *, |
| 1396 | const struct ide_port_info *); |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 1397 | |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 1398 | const struct ide_tp_ops *tp_ops; |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 1399 | const struct ide_port_ops *port_ops; |
Bartlomiej Zolnierkiewicz | f37afda | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 1400 | const struct ide_dma_ops *dma_ops; |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 1401 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1402 | ide_pci_enablebit_t enablebits[2]; |
Bartlomiej Zolnierkiewicz | 528a572 | 2007-10-20 00:32:30 +0200 | [diff] [blame] | 1403 | hwif_chipset_t chipset; |
Bartlomiej Zolnierkiewicz | 9ffcf36 | 2007-10-19 00:30:07 +0200 | [diff] [blame] | 1404 | u32 host_flags; |
Bartlomiej Zolnierkiewicz | 4099d14 | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 1405 | u8 pio_mask; |
Bartlomiej Zolnierkiewicz | 5f8b6c3 | 2007-10-19 00:30:07 +0200 | [diff] [blame] | 1406 | u8 swdma_mask; |
| 1407 | u8 mwdma_mask; |
Bartlomiej Zolnierkiewicz | 1813720 | 2007-05-10 00:01:07 +0200 | [diff] [blame] | 1408 | u8 udma_mask; |
Bartlomiej Zolnierkiewicz | 039788e | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 1409 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1410 | |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 1411 | int ide_pci_init_one(struct pci_dev *, const struct ide_port_info *, void *); |
| 1412 | int ide_pci_init_two(struct pci_dev *, struct pci_dev *, |
| 1413 | const struct ide_port_info *, void *); |
Bartlomiej Zolnierkiewicz | ef0b042 | 2008-07-24 22:53:19 +0200 | [diff] [blame] | 1414 | void ide_pci_remove(struct pci_dev *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1415 | |
Bartlomiej Zolnierkiewicz | feb22b7 | 2008-10-10 22:39:32 +0200 | [diff] [blame] | 1416 | #ifdef CONFIG_PM |
| 1417 | int ide_pci_suspend(struct pci_dev *, pm_message_t); |
| 1418 | int ide_pci_resume(struct pci_dev *); |
| 1419 | #else |
| 1420 | #define ide_pci_suspend NULL |
| 1421 | #define ide_pci_resume NULL |
| 1422 | #endif |
| 1423 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1424 | void ide_map_sg(ide_drive_t *, struct request *); |
| 1425 | void ide_init_sg_cmd(ide_drive_t *, struct request *); |
| 1426 | |
| 1427 | #define BAD_DMA_DRIVE 0 |
| 1428 | #define GOOD_DMA_DRIVE 1 |
| 1429 | |
Jordan Crouse | 65e5f2e | 2005-12-15 02:16:18 +0100 | [diff] [blame] | 1430 | struct drive_list_entry { |
| 1431 | const char *id_model; |
| 1432 | const char *id_firmware; |
| 1433 | }; |
| 1434 | |
Bartlomiej Zolnierkiewicz | 4dde449 | 2008-10-10 22:39:19 +0200 | [diff] [blame] | 1435 | int ide_in_drive_list(u16 *, const struct drive_list_entry *); |
Bartlomiej Zolnierkiewicz | a5b7e70 | 2007-08-20 22:42:56 +0200 | [diff] [blame] | 1436 | |
| 1437 | #ifdef CONFIG_BLK_DEV_IDEDMA |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1438 | int __ide_dma_bad_drive(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | 3ab7efe | 2007-12-12 23:31:58 +0100 | [diff] [blame] | 1439 | int ide_id_dma_bug(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | 7670df7 | 2007-10-11 23:53:59 +0200 | [diff] [blame] | 1440 | |
| 1441 | u8 ide_find_dma_mode(ide_drive_t *, u8); |
| 1442 | |
| 1443 | static inline u8 ide_max_dma_mode(ide_drive_t *drive) |
| 1444 | { |
| 1445 | return ide_find_dma_mode(drive, XFER_UDMA_6); |
| 1446 | } |
| 1447 | |
Bartlomiej Zolnierkiewicz | 4a546e0 | 2008-01-26 20:13:01 +0100 | [diff] [blame] | 1448 | void ide_dma_off_quietly(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | 7469aaf | 2007-02-17 02:40:26 +0100 | [diff] [blame] | 1449 | void ide_dma_off(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | 4a546e0 | 2008-01-26 20:13:01 +0100 | [diff] [blame] | 1450 | void ide_dma_on(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | 3608b5d | 2007-02-17 02:40:26 +0100 | [diff] [blame] | 1451 | int ide_set_dma(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | 578cfa0 | 2008-02-02 19:56:47 +0100 | [diff] [blame] | 1452 | void ide_check_dma_crc(ide_drive_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1453 | ide_startstop_t ide_dma_intr(ide_drive_t *); |
| 1454 | |
Bartlomiej Zolnierkiewicz | 062f9f0 | 2008-02-01 23:09:32 +0100 | [diff] [blame] | 1455 | int ide_build_sglist(ide_drive_t *, struct request *); |
| 1456 | void ide_destroy_dmatable(ide_drive_t *); |
| 1457 | |
Sergei Shtylyov | 8e882ba | 2008-02-11 00:32:14 +0100 | [diff] [blame] | 1458 | #ifdef CONFIG_BLK_DEV_IDEDMA_SFF |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1459 | extern int ide_build_dmatable(ide_drive_t *, struct request *); |
Bartlomiej Zolnierkiewicz | b8e73fb | 2008-04-26 22:25:21 +0200 | [diff] [blame] | 1460 | int ide_allocate_dma_engine(ide_hwif_t *); |
| 1461 | void ide_release_dma_engine(ide_hwif_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1462 | |
Bartlomiej Zolnierkiewicz | 15ce926 | 2008-01-26 20:13:03 +0100 | [diff] [blame] | 1463 | void ide_dma_host_set(ide_drive_t *, int); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1464 | extern int ide_dma_setup(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | f37afda | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 1465 | void ide_dma_exec_cmd(ide_drive_t *, u8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1466 | extern void ide_dma_start(ide_drive_t *); |
| 1467 | extern int __ide_dma_end(ide_drive_t *); |
Bartlomiej Zolnierkiewicz | f37afda | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 1468 | int ide_dma_test_irq(ide_drive_t *); |
Sergei Shtylyov | 841d2a9 | 2007-07-09 23:17:54 +0200 | [diff] [blame] | 1469 | extern void ide_dma_lost_irq(ide_drive_t *); |
Sergei Shtylyov | c283f5d | 2007-07-09 23:17:54 +0200 | [diff] [blame] | 1470 | extern void ide_dma_timeout(ide_drive_t *); |
Kevin Hilman | 71fc9fc | 2008-09-02 20:18:46 +0200 | [diff] [blame] | 1471 | extern const struct ide_dma_ops sff_dma_ops; |
Sergei Shtylyov | 8e882ba | 2008-02-11 00:32:14 +0100 | [diff] [blame] | 1472 | #endif /* CONFIG_BLK_DEV_IDEDMA_SFF */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1473 | |
| 1474 | #else |
Bartlomiej Zolnierkiewicz | 3ab7efe | 2007-12-12 23:31:58 +0100 | [diff] [blame] | 1475 | 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] | 1476 | 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] | 1477 | static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; } |
Bartlomiej Zolnierkiewicz | 4a546e0 | 2008-01-26 20:13:01 +0100 | [diff] [blame] | 1478 | static inline void ide_dma_off_quietly(ide_drive_t *drive) { ; } |
Bartlomiej Zolnierkiewicz | 7469aaf | 2007-02-17 02:40:26 +0100 | [diff] [blame] | 1479 | static inline void ide_dma_off(ide_drive_t *drive) { ; } |
Bartlomiej Zolnierkiewicz | 4a546e0 | 2008-01-26 20:13:01 +0100 | [diff] [blame] | 1480 | static inline void ide_dma_on(ide_drive_t *drive) { ; } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1481 | static inline void ide_dma_verbose(ide_drive_t *drive) { ; } |
Bartlomiej Zolnierkiewicz | 3608b5d | 2007-02-17 02:40:26 +0100 | [diff] [blame] | 1482 | static inline int ide_set_dma(ide_drive_t *drive) { return 1; } |
Bartlomiej Zolnierkiewicz | 578cfa0 | 2008-02-02 19:56:47 +0100 | [diff] [blame] | 1483 | static inline void ide_check_dma_crc(ide_drive_t *drive) { ; } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1484 | #endif /* CONFIG_BLK_DEV_IDEDMA */ |
| 1485 | |
Sergei Shtylyov | 8e882ba | 2008-02-11 00:32:14 +0100 | [diff] [blame] | 1486 | #ifndef CONFIG_BLK_DEV_IDEDMA_SFF |
Bartlomiej Zolnierkiewicz | 0d1bad2 | 2008-04-26 22:25:19 +0200 | [diff] [blame] | 1487 | static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1488 | #endif |
| 1489 | |
Hannes Reinecke | e3a59b4 | 2007-02-07 18:19:37 +0100 | [diff] [blame] | 1490 | #ifdef CONFIG_BLK_DEV_IDEACPI |
| 1491 | extern int ide_acpi_exec_tfs(ide_drive_t *drive); |
| 1492 | extern void ide_acpi_get_timing(ide_hwif_t *hwif); |
| 1493 | extern void ide_acpi_push_timing(ide_hwif_t *hwif); |
| 1494 | extern void ide_acpi_init(ide_hwif_t *hwif); |
Bartlomiej Zolnierkiewicz | eafd88a | 2008-02-02 19:56:43 +0100 | [diff] [blame] | 1495 | void ide_acpi_port_init_devices(ide_hwif_t *); |
Shaohua Li | 5e32132 | 2007-10-11 23:53:58 +0200 | [diff] [blame] | 1496 | extern void ide_acpi_set_state(ide_hwif_t *hwif, int on); |
Hannes Reinecke | e3a59b4 | 2007-02-07 18:19:37 +0100 | [diff] [blame] | 1497 | #else |
| 1498 | static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; } |
| 1499 | static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; } |
| 1500 | static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; } |
| 1501 | static inline void ide_acpi_init(ide_hwif_t *hwif) { ; } |
Bartlomiej Zolnierkiewicz | eafd88a | 2008-02-02 19:56:43 +0100 | [diff] [blame] | 1502 | static inline void ide_acpi_port_init_devices(ide_hwif_t *hwif) { ; } |
Shaohua Li | 5e32132 | 2007-10-11 23:53:58 +0200 | [diff] [blame] | 1503 | 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] | 1504 | #endif |
| 1505 | |
Bartlomiej Zolnierkiewicz | fbd1308 | 2008-02-01 23:09:36 +0100 | [diff] [blame] | 1506 | void ide_remove_port_from_hwgroup(ide_hwif_t *); |
Bartlomiej Zolnierkiewicz | 387750c | 2008-04-27 15:38:31 +0200 | [diff] [blame] | 1507 | void ide_unregister(ide_hwif_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1508 | |
| 1509 | void ide_register_region(struct gendisk *); |
| 1510 | void ide_unregister_region(struct gendisk *); |
| 1511 | |
Bartlomiej Zolnierkiewicz | f01393e | 2008-01-26 20:13:03 +0100 | [diff] [blame] | 1512 | void ide_undecoded_slave(ide_drive_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1513 | |
Bartlomiej Zolnierkiewicz | 9fd91d9 | 2008-04-27 15:38:23 +0200 | [diff] [blame] | 1514 | void ide_port_apply_params(ide_hwif_t *); |
| 1515 | |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 1516 | struct ide_host *ide_host_alloc_all(const struct ide_port_info *, hw_regs_t **); |
| 1517 | struct ide_host *ide_host_alloc(const struct ide_port_info *, hw_regs_t **); |
Bartlomiej Zolnierkiewicz | 8a69580 | 2008-07-23 19:55:59 +0200 | [diff] [blame] | 1518 | void ide_host_free(struct ide_host *); |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 1519 | int ide_host_register(struct ide_host *, const struct ide_port_info *, |
| 1520 | hw_regs_t **); |
Bartlomiej Zolnierkiewicz | 6f904d0 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 1521 | int ide_host_add(const struct ide_port_info *, hw_regs_t **, |
| 1522 | struct ide_host **); |
Bartlomiej Zolnierkiewicz | 48c3c10 | 2008-07-23 19:55:57 +0200 | [diff] [blame] | 1523 | void ide_host_remove(struct ide_host *); |
Bartlomiej Zolnierkiewicz | 0bfeee7 | 2008-04-26 22:25:16 +0200 | [diff] [blame] | 1524 | int ide_legacy_device_add(const struct ide_port_info *, unsigned long); |
Bartlomiej Zolnierkiewicz | 2dde786 | 2008-04-18 00:46:23 +0200 | [diff] [blame] | 1525 | void ide_port_unregister_devices(ide_hwif_t *); |
| 1526 | void ide_port_scan(ide_hwif_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1527 | |
| 1528 | static inline void *ide_get_hwifdata (ide_hwif_t * hwif) |
| 1529 | { |
| 1530 | return hwif->hwif_data; |
| 1531 | } |
| 1532 | |
| 1533 | static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data) |
| 1534 | { |
| 1535 | hwif->hwif_data = data; |
| 1536 | } |
| 1537 | |
Bartlomiej Zolnierkiewicz | 3ab7efe | 2007-12-12 23:31:58 +0100 | [diff] [blame] | 1538 | const char *ide_xfer_verbose(u8 mode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1539 | extern void ide_toggle_bounce(ide_drive_t *drive, int on); |
| 1540 | extern int ide_set_xfer_rate(ide_drive_t *drive, u8 rate); |
| 1541 | |
Bartlomiej Zolnierkiewicz | a501633 | 2008-01-25 22:17:17 +0100 | [diff] [blame] | 1542 | u64 ide_get_lba_addr(struct ide_taskfile *, int); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1543 | u8 ide_dump_status(ide_drive_t *, const char *, u8); |
| 1544 | |
Bartlomiej Zolnierkiewicz | 3be53f3 | 2008-07-16 20:33:36 +0200 | [diff] [blame] | 1545 | struct ide_timing { |
| 1546 | u8 mode; |
| 1547 | u8 setup; /* t1 */ |
| 1548 | u16 act8b; /* t2 for 8-bit io */ |
| 1549 | u16 rec8b; /* t2i for 8-bit io */ |
| 1550 | u16 cyc8b; /* t0 for 8-bit io */ |
| 1551 | u16 active; /* t2 or tD */ |
| 1552 | u16 recover; /* t2i or tK */ |
| 1553 | u16 cycle; /* t0 */ |
| 1554 | u16 udma; /* t2CYCTYP/2 */ |
| 1555 | }; |
| 1556 | |
| 1557 | enum { |
| 1558 | IDE_TIMING_SETUP = (1 << 0), |
| 1559 | IDE_TIMING_ACT8B = (1 << 1), |
| 1560 | IDE_TIMING_REC8B = (1 << 2), |
| 1561 | IDE_TIMING_CYC8B = (1 << 3), |
| 1562 | IDE_TIMING_8BIT = IDE_TIMING_ACT8B | IDE_TIMING_REC8B | |
| 1563 | IDE_TIMING_CYC8B, |
| 1564 | IDE_TIMING_ACTIVE = (1 << 4), |
| 1565 | IDE_TIMING_RECOVER = (1 << 5), |
| 1566 | IDE_TIMING_CYCLE = (1 << 6), |
| 1567 | IDE_TIMING_UDMA = (1 << 7), |
| 1568 | IDE_TIMING_ALL = IDE_TIMING_SETUP | IDE_TIMING_8BIT | |
| 1569 | IDE_TIMING_ACTIVE | IDE_TIMING_RECOVER | |
| 1570 | IDE_TIMING_CYCLE | IDE_TIMING_UDMA, |
| 1571 | }; |
| 1572 | |
Bartlomiej Zolnierkiewicz | f06ab34 | 2008-07-16 20:33:37 +0200 | [diff] [blame] | 1573 | struct ide_timing *ide_timing_find_mode(u8); |
Bartlomiej Zolnierkiewicz | c9d6c1a | 2008-07-16 20:33:39 +0200 | [diff] [blame] | 1574 | u16 ide_pio_cycle_time(ide_drive_t *, u8); |
Bartlomiej Zolnierkiewicz | f06ab34 | 2008-07-16 20:33:37 +0200 | [diff] [blame] | 1575 | void ide_timing_merge(struct ide_timing *, struct ide_timing *, |
| 1576 | struct ide_timing *, unsigned int); |
| 1577 | int ide_timing_compute(ide_drive_t *, u8, struct ide_timing *, int, int); |
| 1578 | |
Bartlomiej Zolnierkiewicz | 9ad5409 | 2008-07-16 20:33:39 +0200 | [diff] [blame] | 1579 | int ide_scan_pio_blacklist(char *); |
| 1580 | |
Bartlomiej Zolnierkiewicz | 2134758 | 2007-07-20 01:11:58 +0200 | [diff] [blame] | 1581 | u8 ide_get_best_pio_mode(ide_drive_t *, u8, u8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1582 | |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 1583 | int ide_set_pio_mode(ide_drive_t *, u8); |
| 1584 | int ide_set_dma_mode(ide_drive_t *, u8); |
| 1585 | |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 1586 | void ide_set_pio(ide_drive_t *, u8); |
| 1587 | |
| 1588 | static inline void ide_set_max_pio(ide_drive_t *drive) |
| 1589 | { |
| 1590 | ide_set_pio(drive, 255); |
| 1591 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1592 | |
| 1593 | extern spinlock_t ide_lock; |
Matthias Kaehlcke | ef29888 | 2007-07-09 23:17:55 +0200 | [diff] [blame] | 1594 | extern struct mutex ide_cfg_mtx; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1595 | /* |
| 1596 | * Structure locking: |
| 1597 | * |
Matthias Kaehlcke | ef29888 | 2007-07-09 23:17:55 +0200 | [diff] [blame] | 1598 | * ide_cfg_mtx and ide_lock together protect changes to |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1599 | * ide_hwif_t->{next,hwgroup} |
| 1600 | * ide_drive_t->next |
| 1601 | * |
| 1602 | * ide_hwgroup_t->busy: ide_lock |
| 1603 | * ide_hwgroup_t->hwif: ide_lock |
| 1604 | * ide_hwif_t->mate: constant, no locking |
| 1605 | * ide_drive_t->hwif: constant, no locking |
| 1606 | */ |
| 1607 | |
Ingo Molnar | 366c7f5 | 2006-07-03 00:25:25 -0700 | [diff] [blame] | 1608 | #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] | 1609 | |
| 1610 | extern struct bus_type ide_bus_type; |
Bartlomiej Zolnierkiewicz | f74c914 | 2008-04-18 00:46:23 +0200 | [diff] [blame] | 1611 | extern struct class *ide_port_class; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1612 | |
Bartlomiej Zolnierkiewicz | 7b9f25b | 2008-02-01 23:09:28 +0100 | [diff] [blame] | 1613 | static inline void ide_dump_identify(u8 *id) |
| 1614 | { |
| 1615 | print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 2, id, 512, 0); |
| 1616 | } |
| 1617 | |
Christoph Lameter | 86b3786 | 2005-08-09 19:59:21 -0700 | [diff] [blame] | 1618 | static inline int hwif_to_node(ide_hwif_t *hwif) |
| 1619 | { |
Bartlomiej Zolnierkiewicz | 96f8021 | 2008-09-02 20:18:47 +0200 | [diff] [blame] | 1620 | return hwif->dev ? dev_to_node(hwif->dev) : -1; |
Christoph Lameter | 86b3786 | 2005-08-09 19:59:21 -0700 | [diff] [blame] | 1621 | } |
| 1622 | |
Bartlomiej Zolnierkiewicz | 7e59ea2 | 2008-10-10 22:39:26 +0200 | [diff] [blame] | 1623 | static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive) |
Benjamin Herrenschmidt | 1b67834 | 2007-10-19 00:30:05 +0200 | [diff] [blame] | 1624 | { |
Bartlomiej Zolnierkiewicz | 7e59ea2 | 2008-10-10 22:39:26 +0200 | [diff] [blame] | 1625 | ide_drive_t *peer = &drive->hwif->drives[(drive->dn ^ 1) & 1]; |
Benjamin Herrenschmidt | 1b67834 | 2007-10-19 00:30:05 +0200 | [diff] [blame] | 1626 | |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 1627 | return (peer->dev_flags & IDE_DFLAG_PRESENT) ? peer : NULL; |
Benjamin Herrenschmidt | 1b67834 | 2007-10-19 00:30:05 +0200 | [diff] [blame] | 1628 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1629 | #endif /* _IDE_H */ |