| #ifndef _IDE_H |
| #define _IDE_H |
| /* |
| * linux/include/linux/ide.h |
| * |
| * Copyright (C) 1994-2002 Linus Torvalds & authors |
| */ |
| |
| #include <linux/config.h> |
| #include <linux/init.h> |
| #include <linux/ioport.h> |
| #include <linux/hdreg.h> |
| #include <linux/hdsmart.h> |
| #include <linux/blkdev.h> |
| #include <linux/proc_fs.h> |
| #include <linux/devfs_fs_kernel.h> |
| #include <linux/interrupt.h> |
| #include <linux/bitops.h> |
| #include <linux/highmem.h> |
| #include <linux/pci.h> |
| #include <asm/byteorder.h> |
| #include <asm/system.h> |
| #include <asm/hdreg.h> |
| #include <asm/io.h> |
| |
| #define CLASSIC_BUILTINS_METHOD 1 |
| //#undef CLASSIC_BUILTINS_METHOD |
| #define HWIF_PROBE_CLASSIC_METHOD 1 |
| //#undef HWIF_PROBE_CLASSIC_METHOD |
| |
| #ifdef CLASSIC_BUILTINS_METHOD |
| # undef FAKE_CLASSIC_ATTACH_METHOD |
| # undef DIRECT_HWIF_PROBE_ATTACH_METHOD |
| #else /* ! CLASSIC_BUILTINS_METHOD */ |
| # ifdef HWIF_PROBE_CLASSIC_METHOD |
| # undef FAKE_CLASSIC_ATTACH_METHOD |
| # undef DIRECT_HWIF_PROBE_ATTACH_METHOD |
| # else /* ! HWIF_PROBE_CLASSIC_METHOD */ |
| //# define FAKE_CLASSIC_ATTACH_METHOD 1 |
| # undef FAKE_CLASSIC_ATTACH_METHOD |
| # ifdef FAKE_CLASSIC_ATTACH_METHOD |
| # undef DIRECT_HWIF_PROBE_ATTACH_METHOD |
| # else /* ! FAKE_CLASSIC_ATTACH_METHOD */ |
| # define DIRECT_HWIF_PROBE_ATTACH_METHOD 1 |
| # endif /* FAKE_CLASSIC_ATTACH_METHOD */ |
| # endif /* HWIF_PROBE_CLASSIC_METHOD */ |
| #endif /* CLASSIC_BUILTINS_METHOD */ |
| |
| /* |
| * This is the multiple IDE interface driver, as evolved from hd.c. |
| * It supports up to four IDE interfaces, on one or more IRQs (usually 14 & 15). |
| * There can be up to two drives per interface, as per the ATA-2 spec. |
| * |
| * Primary i/f: ide0: major=3; (hda) minor=0; (hdb) minor=64 |
| * Secondary i/f: ide1: major=22; (hdc or hd1a) minor=0; (hdd or hd1b) minor=64 |
| * Tertiary i/f: ide2: major=33; (hde) minor=0; (hdf) minor=64 |
| * Quaternary i/f: ide3: major=34; (hdg) minor=0; (hdh) minor=64 |
| */ |
| |
| /****************************************************************************** |
| * IDE driver configuration options (play with these as desired): |
| * |
| * REALLY_SLOW_IO can be defined in ide.c and ide-cd.c, if necessary |
| */ |
| #undef REALLY_FAST_IO /* define if ide ports are perfect */ |
| #define INITIAL_MULT_COUNT 0 /* off=0; on=2,4,8,16,32, etc.. */ |
| |
| #ifndef SUPPORT_SLOW_DATA_PORTS /* 1 to support slow data ports */ |
| #define SUPPORT_SLOW_DATA_PORTS 1 /* 0 to reduce kernel size */ |
| #endif |
| #ifndef SUPPORT_VLB_SYNC /* 1 to support weird 32-bit chips */ |
| #define SUPPORT_VLB_SYNC 1 /* 0 to reduce kernel size */ |
| #endif |
| #ifndef DISK_RECOVERY_TIME /* off=0; on=access_delay_time */ |
| #define DISK_RECOVERY_TIME 0 /* for hardware that needs it */ |
| #endif |
| #ifndef OK_TO_RESET_CONTROLLER /* 1 needed for good error recovery */ |
| #define OK_TO_RESET_CONTROLLER 1 /* 0 for use with AH2372A/B interface */ |
| #endif |
| #ifndef FANCY_STATUS_DUMPS /* 1 for human-readable drive errors */ |
| #define FANCY_STATUS_DUMPS 1 /* 0 to reduce kernel size */ |
| #endif |
| |
| #ifdef CONFIG_BLK_DEV_CMD640 |
| #if 0 /* change to 1 when debugging cmd640 problems */ |
| void cmd640_dump_regs (void); |
| #define CMD640_DUMP_REGS cmd640_dump_regs() /* for debugging cmd640 chipset */ |
| #endif |
| #endif /* CONFIG_BLK_DEV_CMD640 */ |
| |
| #ifndef DISABLE_IRQ_NOSYNC |
| #define DISABLE_IRQ_NOSYNC 0 |
| #endif |
| |
| /* |
| * Used to indicate "no IRQ", should be a value that cannot be an IRQ |
| * number. |
| */ |
| |
| #define IDE_NO_IRQ (-1) |
| |
| /* |
| * IDE_DRIVE_CMD is used to implement many features of the hdparm utility |
| */ |
| #define IDE_DRIVE_CMD 99 /* (magic) undef to reduce kernel size*/ |
| |
| #define IDE_DRIVE_TASK 98 |
| |
| /* |
| * IDE_DRIVE_TASKFILE is used to implement many features needed for raw tasks |
| */ |
| #define IDE_DRIVE_TASKFILE 97 |
| |
| /* |
| * "No user-serviceable parts" beyond this point :) |
| *****************************************************************************/ |
| |
| typedef unsigned char byte; /* used everywhere */ |
| |
| /* |
| * Probably not wise to fiddle with these |
| */ |
| #define ERROR_MAX 8 /* Max read/write errors per sector */ |
| #define ERROR_RESET 3 /* Reset controller every 4th retry */ |
| #define ERROR_RECAL 1 /* Recalibrate every 2nd retry */ |
| |
| /* |
| * Tune flags |
| */ |
| #define IDE_TUNE_BIOS 3 |
| #define IDE_TUNE_NOAUTO 2 |
| #define IDE_TUNE_AUTO 1 |
| #define IDE_TUNE_DEFAULT 0 |
| |
| /* |
| * state flags |
| */ |
| |
| #define DMA_PIO_RETRY 1 /* retrying in PIO */ |
| |
| /* |
| * Ensure that various configuration flags have compatible settings |
| */ |
| #ifdef REALLY_SLOW_IO |
| #undef REALLY_FAST_IO |
| #endif |
| |
| #define HWIF(drive) ((ide_hwif_t *)((drive)->hwif)) |
| #define HWGROUP(drive) ((ide_hwgroup_t *)(HWIF(drive)->hwgroup)) |
| |
| /* |
| * Definitions for accessing IDE controller registers |
| */ |
| #define IDE_NR_PORTS (10) |
| |
| #define IDE_DATA_OFFSET (0) |
| #define IDE_ERROR_OFFSET (1) |
| #define IDE_NSECTOR_OFFSET (2) |
| #define IDE_SECTOR_OFFSET (3) |
| #define IDE_LCYL_OFFSET (4) |
| #define IDE_HCYL_OFFSET (5) |
| #define IDE_SELECT_OFFSET (6) |
| #define IDE_STATUS_OFFSET (7) |
| #define IDE_CONTROL_OFFSET (8) |
| #define IDE_IRQ_OFFSET (9) |
| |
| #define IDE_FEATURE_OFFSET IDE_ERROR_OFFSET |
| #define IDE_COMMAND_OFFSET IDE_STATUS_OFFSET |
| |
| #define IDE_DATA_OFFSET_HOB (0) |
| #define IDE_ERROR_OFFSET_HOB (1) |
| #define IDE_NSECTOR_OFFSET_HOB (2) |
| #define IDE_SECTOR_OFFSET_HOB (3) |
| #define IDE_LCYL_OFFSET_HOB (4) |
| #define IDE_HCYL_OFFSET_HOB (5) |
| #define IDE_SELECT_OFFSET_HOB (6) |
| #define IDE_CONTROL_OFFSET_HOB (7) |
| |
| #define IDE_FEATURE_OFFSET_HOB IDE_ERROR_OFFSET_HOB |
| |
| #define IDE_DATA_REG (HWIF(drive)->io_ports[IDE_DATA_OFFSET]) |
| #define IDE_ERROR_REG (HWIF(drive)->io_ports[IDE_ERROR_OFFSET]) |
| #define IDE_NSECTOR_REG (HWIF(drive)->io_ports[IDE_NSECTOR_OFFSET]) |
| #define IDE_SECTOR_REG (HWIF(drive)->io_ports[IDE_SECTOR_OFFSET]) |
| #define IDE_LCYL_REG (HWIF(drive)->io_ports[IDE_LCYL_OFFSET]) |
| #define IDE_HCYL_REG (HWIF(drive)->io_ports[IDE_HCYL_OFFSET]) |
| #define IDE_SELECT_REG (HWIF(drive)->io_ports[IDE_SELECT_OFFSET]) |
| #define IDE_STATUS_REG (HWIF(drive)->io_ports[IDE_STATUS_OFFSET]) |
| #define IDE_CONTROL_REG (HWIF(drive)->io_ports[IDE_CONTROL_OFFSET]) |
| #define IDE_IRQ_REG (HWIF(drive)->io_ports[IDE_IRQ_OFFSET]) |
| |
| #define IDE_DATA_REG_HOB (HWIF(drive)->io_ports[IDE_DATA_OFFSET]) |
| #define IDE_ERROR_REG_HOB (HWIF(drive)->io_ports[IDE_ERROR_OFFSET]) |
| #define IDE_NSECTOR_REG_HOB (HWIF(drive)->io_ports[IDE_NSECTOR_OFFSET]) |
| #define IDE_SECTOR_REG_HOB (HWIF(drive)->io_ports[IDE_SECTOR_OFFSET]) |
| #define IDE_LCYL_REG_HOB (HWIF(drive)->io_ports[IDE_LCYL_OFFSET]) |
| #define IDE_HCYL_REG_HOB (HWIF(drive)->io_ports[IDE_HCYL_OFFSET]) |
| #define IDE_SELECT_REG_HOB (HWIF(drive)->io_ports[IDE_SELECT_OFFSET]) |
| #define IDE_STATUS_REG_HOB (HWIF(drive)->io_ports[IDE_STATUS_OFFSET]) |
| #define IDE_CONTROL_REG_HOB (HWIF(drive)->io_ports[IDE_CONTROL_OFFSET]) |
| |
| #define IDE_FEATURE_REG IDE_ERROR_REG |
| #define IDE_COMMAND_REG IDE_STATUS_REG |
| #define IDE_ALTSTATUS_REG IDE_CONTROL_REG |
| #define IDE_IREASON_REG IDE_NSECTOR_REG |
| #define IDE_BCOUNTL_REG IDE_LCYL_REG |
| #define IDE_BCOUNTH_REG IDE_HCYL_REG |
| |
| #define OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good)) |
| #define BAD_R_STAT (BUSY_STAT | ERR_STAT) |
| #define BAD_W_STAT (BAD_R_STAT | WRERR_STAT) |
| #define BAD_STAT (BAD_R_STAT | DRQ_STAT) |
| #define DRIVE_READY (READY_STAT | SEEK_STAT) |
| #define DATA_READY (DRQ_STAT) |
| |
| #define BAD_CRC (ABRT_ERR | ICRC_ERR) |
| |
| #define SATA_NR_PORTS (3) /* 16 possible ?? */ |
| |
| #define SATA_STATUS_OFFSET (0) |
| #define SATA_STATUS_REG (HWIF(drive)->sata_scr[SATA_STATUS_OFFSET]) |
| #define SATA_ERROR_OFFSET (1) |
| #define SATA_ERROR_REG (HWIF(drive)->sata_scr[SATA_ERROR_OFFSET]) |
| #define SATA_CONTROL_OFFSET (2) |
| #define SATA_CONTROL_REG (HWIF(drive)->sata_scr[SATA_CONTROL_OFFSET]) |
| |
| #define SATA_MISC_OFFSET (0) |
| #define SATA_MISC_REG (HWIF(drive)->sata_misc[SATA_MISC_OFFSET]) |
| #define SATA_PHY_OFFSET (1) |
| #define SATA_PHY_REG (HWIF(drive)->sata_misc[SATA_PHY_OFFSET]) |
| #define SATA_IEN_OFFSET (2) |
| #define SATA_IEN_REG (HWIF(drive)->sata_misc[SATA_IEN_OFFSET]) |
| |
| /* |
| * Our Physical Region Descriptor (PRD) table should be large enough |
| * to handle the biggest I/O request we are likely to see. Since requests |
| * can have no more than 256 sectors, and since the typical blocksize is |
| * two or more sectors, we could get by with a limit of 128 entries here for |
| * the usual worst case. Most requests seem to include some contiguous blocks, |
| * further reducing the number of table entries required. |
| * |
| * The driver reverts to PIO mode for individual requests that exceed |
| * this limit (possible with 512 byte blocksizes, eg. MSDOS f/s), so handling |
| * 100% of all crazy scenarios here is not necessary. |
| * |
| * As it turns out though, we must allocate a full 4KB page for this, |
| * so the two PRD tables (ide0 & ide1) will each get half of that, |
| * allowing each to have about 256 entries (8 bytes each) from this. |
| */ |
| #define PRD_BYTES 8 |
| #define PRD_ENTRIES (PAGE_SIZE / (2 * PRD_BYTES)) |
| |
| /* |
| * Some more useful definitions |
| */ |
| #define IDE_MAJOR_NAME "hd" /* the same for all i/f; see also genhd.c */ |
| #define MAJOR_NAME IDE_MAJOR_NAME |
| #define PARTN_BITS 6 /* number of minor dev bits for partitions */ |
| #define PARTN_MASK ((1<<PARTN_BITS)-1) /* a useful bit mask */ |
| #define MAX_DRIVES 2 /* per interface; 2 assumed by lots of code */ |
| #define SECTOR_SIZE 512 |
| #define SECTOR_WORDS (SECTOR_SIZE / 4) /* number of 32bit words per sector */ |
| #define IDE_LARGE_SEEK(b1,b2,t) (((b1) > (b2) + (t)) || ((b2) > (b1) + (t))) |
| #define IDE_MIN(a,b) ((a)<(b) ? (a):(b)) |
| #define IDE_MAX(a,b) ((a)>(b) ? (a):(b)) |
| |
| /* |
| * Timeouts for various operations: |
| */ |
| #define WAIT_DRQ (5*HZ/100) /* 50msec - spec allows up to 20ms */ |
| #if defined(CONFIG_APM) || defined(CONFIG_APM_MODULE) |
| #define WAIT_READY (5*HZ) /* 5sec - some laptops are very slow */ |
| #else |
| #define WAIT_READY (3*HZ/100) /* 30msec - should be instantaneous */ |
| #endif /* CONFIG_APM || CONFIG_APM_MODULE */ |
| #define WAIT_PIDENTIFY (10*HZ) /* 10sec - should be less than 3ms (?), if all ATAPI CD is closed at boot */ |
| #define WAIT_WORSTCASE (30*HZ) /* 30sec - worst case when spinning up */ |
| #define WAIT_CMD (10*HZ) /* 10sec - maximum wait for an IRQ to happen */ |
| #define WAIT_MIN_SLEEP (2*HZ/100) /* 20msec - minimum sleep time */ |
| |
| #define HOST(hwif,chipset) \ |
| { \ |
| return ((hwif)->chipset == chipset) ? 1 : 0; \ |
| } |
| |
| /* |
| * Check for an interrupt and acknowledge the interrupt status |
| */ |
| struct hwif_s; |
| typedef int (ide_ack_intr_t)(struct hwif_s *); |
| |
| #ifndef NO_DMA |
| #define NO_DMA 255 |
| #endif |
| |
| /* |
| * hwif_chipset_t is used to keep track of the specific hardware |
| * chipset used by each IDE interface, if known. |
| */ |
| typedef enum { ide_unknown, ide_generic, ide_pci, |
| ide_cmd640, ide_dtc2278, ide_ali14xx, |
| ide_qd65xx, ide_umc8672, ide_ht6560b, |
| ide_pdc4030, ide_rz1000, ide_trm290, |
| ide_cmd646, ide_cy82c693, ide_4drives, |
| ide_pmac, ide_etrax100, ide_acorn |
| } hwif_chipset_t; |
| |
| /* |
| * Structure to hold all information about the location of this port |
| */ |
| typedef struct hw_regs_s { |
| ide_ioreg_t io_ports[IDE_NR_PORTS]; /* task file registers */ |
| int irq; /* our irq number */ |
| int dma; /* our dma entry */ |
| ide_ack_intr_t *ack_intr; /* acknowledge interrupt */ |
| void *priv; /* interface specific data */ |
| hwif_chipset_t chipset; |
| sata_ioreg_t sata_scr[SATA_NR_PORTS]; |
| sata_ioreg_t sata_misc[SATA_NR_PORTS]; |
| } hw_regs_t; |
| |
| /* |
| * Register new hardware with ide |
| */ |
| int ide_register_hw(hw_regs_t *hw, struct hwif_s **hwifp); |
| |
| /* |
| * Set up hw_regs_t structure before calling ide_register_hw (optional) |
| */ |
| void ide_setup_ports( hw_regs_t *hw, |
| ide_ioreg_t base, |
| int *offsets, |
| ide_ioreg_t ctrl, |
| ide_ioreg_t intr, |
| ide_ack_intr_t *ack_intr, |
| #if 0 |
| ide_io_ops_t *iops, |
| #endif |
| int irq); |
| |
| #include <asm/ide.h> |
| |
| /* Currently only m68k, apus and m8xx need it */ |
| #ifndef IDE_ARCH_ACK_INTR |
| # define ide_ack_intr(hwif) (1) |
| #endif |
| |
| /* Currently only Atari needs it */ |
| #ifndef IDE_ARCH_LOCK |
| # define ide_release_lock() do {} while (0) |
| # define ide_get_lock(hdlr, data) do {} while (0) |
| #endif /* IDE_ARCH_LOCK */ |
| |
| /* |
| * Now for the data we need to maintain per-drive: ide_drive_t |
| */ |
| |
| #define ide_scsi 0x21 |
| #define ide_disk 0x20 |
| #define ide_optical 0x7 |
| #define ide_cdrom 0x5 |
| #define ide_tape 0x1 |
| #define ide_floppy 0x0 |
| |
| /* |
| * Special Driver Flags |
| * |
| * set_geometry : respecify drive geometry |
| * recalibrate : seek to cyl 0 |
| * set_multmode : set multmode count |
| * set_tune : tune interface for drive |
| * serviced : service command |
| * reserved : unused |
| */ |
| typedef union { |
| unsigned all : 8; |
| struct { |
| #if defined(__LITTLE_ENDIAN_BITFIELD) |
| unsigned set_geometry : 1; |
| unsigned recalibrate : 1; |
| unsigned set_multmode : 1; |
| unsigned set_tune : 1; |
| unsigned serviced : 1; |
| unsigned reserved : 3; |
| #elif defined(__BIG_ENDIAN_BITFIELD) |
| unsigned reserved : 3; |
| unsigned serviced : 1; |
| unsigned set_tune : 1; |
| unsigned set_multmode : 1; |
| unsigned recalibrate : 1; |
| unsigned set_geometry : 1; |
| #else |
| #error "Please fix <asm/byteorder.h>" |
| #endif |
| } b; |
| } special_t; |
| |
| /* |
| * ATA DATA Register Special. |
| * ATA NSECTOR Count Register(). |
| * ATAPI Byte Count Register. |
| * Channel index ordering pairs. |
| */ |
| typedef union { |
| unsigned all :16; |
| struct { |
| #if defined(__LITTLE_ENDIAN_BITFIELD) |
| unsigned low :8; /* LSB */ |
| unsigned high :8; /* MSB */ |
| #elif defined(__BIG_ENDIAN_BITFIELD) |
| unsigned high :8; /* MSB */ |
| unsigned low :8; /* LSB */ |
| #else |
| #error "Please fix <asm/byteorder.h>" |
| #endif |
| } b; |
| } ata_nsector_t, ata_data_t, atapi_bcount_t, ata_index_t; |
| |
| /* |
| * ATA-IDE Error Register |
| * |
| * mark : Bad address mark |
| * tzero : Couldn't find track 0 |
| * abrt : Aborted Command |
| * mcr : Media Change Request |
| * id : ID field not found |
| * mce : Media Change Event |
| * ecc : Uncorrectable ECC error |
| * bdd : dual meaing |
| */ |
| typedef union { |
| unsigned all :8; |
| struct { |
| #if defined(__LITTLE_ENDIAN_BITFIELD) |
| unsigned mark :1; |
| unsigned tzero :1; |
| unsigned abrt :1; |
| unsigned mcr :1; |
| unsigned id :1; |
| unsigned mce :1; |
| unsigned ecc :1; |
| unsigned bdd :1; |
| #elif defined(__BIG_ENDIAN_BITFIELD) |
| unsigned bdd :1; |
| unsigned ecc :1; |
| unsigned mce :1; |
| unsigned id :1; |
| unsigned mcr :1; |
| unsigned abrt :1; |
| unsigned tzero :1; |
| unsigned mark :1; |
| #else |
| #error "Please fix <asm/byteorder.h>" |
| #endif |
| } b; |
| } ata_error_t; |
| |
| /* |
| * ATA-IDE Select Register, aka Device-Head |
| * |
| * head : always zeros here |
| * unit : drive select number: 0/1 |
| * bit5 : always 1 |
| * lba : using LBA instead of CHS |
| * bit7 : always 1 |
| */ |
| typedef union { |
| unsigned all : 8; |
| struct { |
| #if defined(__LITTLE_ENDIAN_BITFIELD) |
| unsigned head : 4; |
| unsigned unit : 1; |
| unsigned bit5 : 1; |
| unsigned lba : 1; |
| unsigned bit7 : 1; |
| #elif defined(__BIG_ENDIAN_BITFIELD) |
| unsigned bit7 : 1; |
| unsigned lba : 1; |
| unsigned bit5 : 1; |
| unsigned unit : 1; |
| unsigned head : 4; |
| #else |
| #error "Please fix <asm/byteorder.h>" |
| #endif |
| } b; |
| } select_t, ata_select_t; |
| |
| /* |
| * The ATA-IDE Status Register. |
| * The ATAPI Status Register. |
| * |
| * check : Error occurred |
| * idx : Index Error |
| * corr : Correctable error occurred |
| * drq : Data is request by the device |
| * dsc : Disk Seek Complete : ata |
| * : Media access command finished : atapi |
| * df : Device Fault : ata |
| * : Reserved : atapi |
| * drdy : Ready, Command Mode Capable : ata |
| * : Ignored for ATAPI commands : atapi |
| * bsy : Disk is Busy |
| * : The device has access to the command block |
| */ |
| typedef union { |
| unsigned all :8; |
| struct { |
| #if defined(__LITTLE_ENDIAN_BITFIELD) |
| unsigned check :1; |
| unsigned idx :1; |
| unsigned corr :1; |
| unsigned drq :1; |
| unsigned dsc :1; |
| unsigned df :1; |
| unsigned drdy :1; |
| unsigned bsy :1; |
| #elif defined(__BIG_ENDIAN_BITFIELD) |
| unsigned bsy :1; |
| unsigned drdy :1; |
| unsigned df :1; |
| unsigned dsc :1; |
| unsigned drq :1; |
| unsigned corr :1; |
| unsigned idx :1; |
| unsigned check :1; |
| #else |
| #error "Please fix <asm/byteorder.h>" |
| #endif |
| } b; |
| } ata_status_t, atapi_status_t; |
| |
| /* |
| * ATA-IDE Control Register |
| * |
| * bit0 : Should be set to zero |
| * nIEN : device INTRQ to host |
| * SRST : host soft reset bit |
| * bit3 : ATA-2 thingy, Should be set to 1 |
| * reserved456 : Reserved |
| * HOB : 48-bit address ordering, High Ordered Bit |
| */ |
| typedef union { |
| unsigned all : 8; |
| struct { |
| #if defined(__LITTLE_ENDIAN_BITFIELD) |
| unsigned bit0 : 1; |
| unsigned nIEN : 1; |
| unsigned SRST : 1; |
| unsigned bit3 : 1; |
| unsigned reserved456 : 3; |
| unsigned HOB : 1; |
| #elif defined(__BIG_ENDIAN_BITFIELD) |
| unsigned HOB : 1; |
| unsigned reserved456 : 3; |
| unsigned bit3 : 1; |
| unsigned SRST : 1; |
| unsigned nIEN : 1; |
| unsigned bit0 : 1; |
| #else |
| #error "Please fix <asm/byteorder.h>" |
| #endif |
| } b; |
| } ata_control_t; |
| |
| /* |
| * ATAPI Feature Register |
| * |
| * dma : Using DMA or PIO |
| * reserved321 : Reserved |
| * reserved654 : Reserved (Tag Type) |
| * reserved7 : Reserved |
| */ |
| typedef union { |
| unsigned all :8; |
| struct { |
| #if defined(__LITTLE_ENDIAN_BITFIELD) |
| unsigned dma :1; |
| unsigned reserved321 :3; |
| unsigned reserved654 :3; |
| unsigned reserved7 :1; |
| #elif defined(__BIG_ENDIAN_BITFIELD) |
| unsigned reserved7 :1; |
| unsigned reserved654 :3; |
| unsigned reserved321 :3; |
| unsigned dma :1; |
| #else |
| #error "Please fix <asm/byteorder.h>" |
| #endif |
| } b; |
| } atapi_feature_t; |
| |
| /* |
| * ATAPI Interrupt Reason Register. |
| * |
| * cod : Information transferred is command (1) or data (0) |
| * io : The device requests us to read (1) or write (0) |
| * reserved : Reserved |
| */ |
| typedef union { |
| unsigned all :8; |
| struct { |
| #if defined(__LITTLE_ENDIAN_BITFIELD) |
| unsigned cod :1; |
| unsigned io :1; |
| unsigned reserved :6; |
| #elif defined(__BIG_ENDIAN_BITFIELD) |
| unsigned reserved :6; |
| unsigned io :1; |
| unsigned cod :1; |
| #else |
| #error "Please fix <asm/byteorder.h>" |
| #endif |
| } b; |
| } atapi_ireason_t; |
| |
| /* |
| * The ATAPI error register. |
| * |
| * ili : Illegal Length Indication |
| * eom : End Of Media Detected |
| * abrt : Aborted command - As defined by ATA |
| * mcr : Media Change Requested - As defined by ATA |
| * sense_key : Sense key of the last failed packet command |
| */ |
| typedef union { |
| unsigned all :8; |
| struct { |
| #if defined(__LITTLE_ENDIAN_BITFIELD) |
| unsigned ili :1; |
| unsigned eom :1; |
| unsigned abrt :1; |
| unsigned mcr :1; |
| unsigned sense_key :4; |
| #elif defined(__BIG_ENDIAN_BITFIELD) |
| unsigned sense_key :4; |
| unsigned mcr :1; |
| unsigned abrt :1; |
| unsigned eom :1; |
| unsigned ili :1; |
| #else |
| #error "Please fix <asm/byteorder.h>" |
| #endif |
| } b; |
| } atapi_error_t; |
| |
| /* |
| * ATAPI floppy Drive Select Register |
| * |
| * sam_lun : Logical unit number |
| * reserved3 : Reserved |
| * drv : The responding drive will be drive 0 (0) or drive 1 (1) |
| * one5 : Should be set to 1 |
| * reserved6 : Reserved |
| * one7 : Should be set to 1 |
| */ |
| typedef union { |
| unsigned all :8; |
| struct { |
| #if defined(__LITTLE_ENDIAN_BITFIELD) |
| unsigned sam_lun :3; |
| unsigned reserved3 :1; |
| unsigned drv :1; |
| unsigned one5 :1; |
| unsigned reserved6 :1; |
| unsigned one7 :1; |
| #elif defined(__BIG_ENDIAN_BITFIELD) |
| unsigned one7 :1; |
| unsigned reserved6 :1; |
| unsigned one5 :1; |
| unsigned drv :1; |
| unsigned reserved3 :1; |
| unsigned sam_lun :3; |
| #else |
| #error "Please fix <asm/byteorder.h>" |
| #endif |
| } b; |
| } atapi_select_t; |
| |
| struct ide_driver_s; |
| struct ide_settings_s; |
| |
| /* |
| * Status returned from various ide_ functions |
| */ |
| typedef enum { |
| ide_stopped, /* no drive operation was started */ |
| ide_started /* a drive operation was started, handler was set */ |
| } ide_startstop_t; |
| |
| |
| typedef struct ide_drive_s { |
| char name[4]; /* drive name, such as "hda" */ |
| char driver_req[10]; /* requests specific driver */ |
| |
| request_queue_t queue; /* request queue */ |
| |
| wait_queue_head_t wqueue; /* used to wait for drive in open() */ |
| struct request *rq; /* current request */ |
| struct ide_drive_s *next; /* circular list of hwgroup drives */ |
| struct ide_driver_s *driver;/* (ide_driver_t *) */ |
| void *driver_data; /* extra driver data */ |
| struct hd_driveid *id; /* drive model identification info */ |
| struct hd_struct *part; /* drive partition table */ |
| struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ |
| struct ide_settings_s *settings;/* /proc/ide/ drive settings */ |
| devfs_handle_t de; /* directory for device */ |
| |
| struct hwif_s *hwif; /* actually (ide_hwif_t *) */ |
| |
| unsigned long sleep; /* sleep until this time */ |
| unsigned long service_start; /* time we started last request */ |
| unsigned long service_time; /* service time of last request */ |
| unsigned long timeout; /* max time to wait for irq */ |
| |
| special_t special; /* special action flags */ |
| select_t select; /* basic drive/head select reg value */ |
| |
| u8 keep_settings; /* restore settings after drive reset */ |
| u8 autodma; /* device can safely use dma on host */ |
| u8 using_dma; /* disk is using dma for read/write */ |
| u8 using_tcq; /* disk is using queueing */ |
| u8 retry_pio; /* retrying dma capable host in pio */ |
| u8 state; /* retry state */ |
| u8 waiting_for_dma; /* dma currently in progress */ |
| u8 unmask; /* okay to unmask other irqs */ |
| u8 slow; /* slow data port */ |
| u8 bswap; /* byte swap data */ |
| u8 dsc_overlap; /* DSC overlap */ |
| u8 nice1; /* give potential excess bandwidth */ |
| |
| unsigned present : 1; /* drive is physically present */ |
| unsigned noprobe : 1; /* from: hdx=noprobe */ |
| unsigned busy : 1; /* currently doing revalidate_disk() */ |
| unsigned removable : 1; /* 1 if need to do check_media_change */ |
| unsigned is_flash : 1; /* 1 if probed as flash */ |
| unsigned forced_geom : 1; /* 1 if hdx=c,h,s was given at boot */ |
| unsigned no_unmask : 1; /* disallow setting unmask bit */ |
| unsigned no_io_32bit : 1; /* disallow enabling 32bit I/O */ |
| unsigned nobios : 1; /* do not probe bios for drive */ |
| unsigned revalidate : 1; /* request revalidation */ |
| unsigned atapi_overlap : 1; /* ATAPI overlap (not supported) */ |
| unsigned nice0 : 1; /* give obvious excess bandwidth */ |
| unsigned nice2 : 1; /* give a share in our own bandwidth */ |
| unsigned doorlocking : 1; /* for removable only: door lock/unlock works */ |
| unsigned autotune : 2; /* 1=autotune, 2=noautotune, 0=default */ |
| unsigned remap_0_to_1 : 2; /* 0=remap if ezdrive, 1=remap, 2=noremap */ |
| unsigned ata_flash : 1; /* 1=present, 0=default */ |
| unsigned dead : 1; /* 1=dead, no new attachments */ |
| unsigned id_read : 1; /* 1=id read from disk 0 = synthetic */ |
| unsigned addressing; /* : 3; |
| * 0=28-bit |
| * 1=48-bit |
| * 2=48-bit doing 28-bit |
| * 3=64-bit |
| */ |
| |
| u8 scsi; /* 0=default, 1=skip current ide-subdriver for ide-scsi emulation */ |
| u8 quirk_list; /* considered quirky, set for a specific host */ |
| u8 suspend_reset; /* drive suspend mode flag, soft-reset recovers */ |
| u8 init_speed; /* transfer rate set at boot */ |
| u8 pio_speed; /* unused by core, used by some drivers for fallback from DMA */ |
| u8 current_speed; /* current transfer rate set */ |
| u8 dn; /* now wide spread use */ |
| u8 wcache; /* status of write cache */ |
| u8 acoustic; /* acoustic management */ |
| u8 media; /* disk, cdrom, tape, floppy, ... */ |
| u8 ctl; /* "normal" value for IDE_CONTROL_REG */ |
| u8 ready_stat; /* min status value for drive ready */ |
| u8 mult_count; /* current multiple sector setting */ |
| u8 mult_req; /* requested multiple sector setting */ |
| u8 tune_req; /* requested drive tuning setting */ |
| u8 io_32bit; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */ |
| u8 bad_wstat; /* used for ignoring WRERR_STAT */ |
| u8 nowerr; /* used for ignoring WRERR_STAT */ |
| u8 sect0; /* offset of first sector for DM6:DDO */ |
| u8 head; /* "real" number of heads */ |
| u8 sect; /* "real" sectors per track */ |
| u8 bios_head; /* BIOS/fdisk/LILO number of heads */ |
| u8 bios_sect; /* BIOS/fdisk/LILO sectors per track */ |
| |
| unsigned int bios_cyl; /* BIOS/fdisk/LILO number of cyls */ |
| unsigned int cyl; /* "real" number of cyls */ |
| unsigned int drive_data; /* use by tuneproc/selectproc */ |
| unsigned int usage; /* current "open()" count for drive */ |
| unsigned int failures; /* current failure count */ |
| unsigned int max_failures; /* maximum allowed failure count */ |
| |
| u32 capacity; /* total number of sectors */ |
| u64 capacity48; /* total number of sectors */ |
| |
| int last_lun; /* last logical unit */ |
| int forced_lun; /* if hdxlun was given at boot */ |
| int lun; /* logical unit */ |
| int crc_count; /* crc counter to reduce drive speed */ |
| } ide_drive_t; |
| |
| typedef struct ide_pio_ops_s { |
| void (*ata_input_data)(ide_drive_t *, void *, u32); |
| void (*ata_output_data)(ide_drive_t *, void *, u32); |
| |
| void (*atapi_input_bytes)(ide_drive_t *, void *, u32); |
| void (*atapi_output_bytes)(ide_drive_t *, void *, u32); |
| } ide_pio_ops_t; |
| |
| typedef struct ide_dma_ops_s { |
| /* insert dma operations here! */ |
| int (*ide_dma_read)(ide_drive_t *drive); |
| int (*ide_dma_write)(ide_drive_t *drive); |
| int (*ide_dma_begin)(ide_drive_t *drive); |
| int (*ide_dma_end)(ide_drive_t *drive); |
| int (*ide_dma_check)(ide_drive_t *drive); |
| int (*ide_dma_on)(ide_drive_t *drive); |
| int (*ide_dma_off)(ide_drive_t *drive); |
| int (*ide_dma_off_quietly)(ide_drive_t *drive); |
| int (*ide_dma_test_irq)(ide_drive_t *drive); |
| int (*ide_dma_host_on)(ide_drive_t *drive); |
| int (*ide_dma_host_off)(ide_drive_t *drive); |
| int (*ide_dma_bad_drive)(ide_drive_t *drive); |
| int (*ide_dma_good_drive)(ide_drive_t *drive); |
| int (*ide_dma_count)(ide_drive_t *drive); |
| int (*ide_dma_verbose)(ide_drive_t *drive); |
| int (*ide_dma_retune)(ide_drive_t *drive); |
| int (*ide_dma_lostirq)(ide_drive_t *drive); |
| int (*ide_dma_timeout)(ide_drive_t *drive); |
| } ide_dma_ops_t; |
| |
| /* |
| * mapping stuff, prepare for highmem... |
| * |
| * temporarily mapping a (possible) highmem bio for PIO transfer |
| */ |
| #define ide_rq_offset(rq) \ |
| (((rq)->hard_cur_sectors - (rq)->current_nr_sectors) << 9) |
| |
| static inline void *ide_map_buffer(struct request *rq, unsigned long *flags) |
| { |
| return bh_kmap_irq(rq->bh, flags) + ide_rq_offset(rq); |
| } |
| |
| static inline void ide_unmap_buffer(char *buffer, unsigned long *flags) |
| { |
| bh_kunmap_irq(buffer, flags); |
| } |
| |
| #define IDE_CHIPSET_PCI_MASK \ |
| ((1<<ide_pci)|(1<<ide_cmd646)|(1<<ide_ali14xx)) |
| #define IDE_CHIPSET_IS_PCI(c) ((IDE_CHIPSET_PCI_MASK >> (c)) & 1) |
| |
| struct ide_pci_device_s; |
| |
| typedef struct hwif_s { |
| struct hwif_s *next; /* for linked-list in ide_hwgroup_t */ |
| struct hwif_s *mate; /* other hwif from same PCI chip */ |
| struct hwgroup_s *hwgroup; /* actually (ide_hwgroup_t *) */ |
| struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ |
| struct gendisk *gd; /* gendisk structure */ |
| |
| char name[6]; /* name of interface, eg. "ide0" */ |
| |
| /* task file registers for pata and sata */ |
| ide_ioreg_t io_ports[IDE_NR_PORTS]; |
| sata_ioreg_t sata_scr[SATA_NR_PORTS]; |
| sata_ioreg_t sata_misc[SATA_NR_PORTS]; |
| |
| hw_regs_t hw; /* Hardware info */ |
| ide_drive_t drives[MAX_DRIVES]; /* drive info */ |
| |
| u8 major; /* our major number */ |
| u8 index; /* 0 for ide0; 1 for ide1; ... */ |
| u8 channel; /* for dual-port chips: 0=primary, 1=secondary */ |
| u8 straight8; /* Alan's straight 8 check */ |
| u8 bus_state; /* power state of the IDE bus */ |
| |
| u8 atapi_dma; /* host supports atapi_dma */ |
| u8 ultra_mask; |
| u8 mwdma_mask; |
| u8 swdma_mask; |
| |
| hwif_chipset_t chipset; /* sub-module for tuning.. */ |
| |
| struct pci_dev *pci_dev; /* for pci chipsets */ |
| struct ide_pci_device_s *cds; /* chipset device struct */ |
| |
| ide_startstop_t (*rw_disk)(ide_drive_t *, struct request *, unsigned long); |
| |
| #if 0 |
| ide_hwif_ops_t *hwifops; |
| #else |
| /* routine is for HBA specific IDENTITY operations */ |
| int (*identify)(ide_drive_t *); |
| /* routine to tune PIO mode for drives */ |
| void (*tuneproc)(ide_drive_t *, u8); |
| /* routine to retune DMA modes for drives */ |
| int (*speedproc)(ide_drive_t *, u8); |
| /* tweaks hardware to select drive */ |
| void (*selectproc)(ide_drive_t *); |
| /* chipset polling based on hba specifics */ |
| int (*reset_poll)(ide_drive_t *); |
| /* chipset specific changes to default for device-hba resets */ |
| void (*pre_reset)(ide_drive_t *); |
| /* routine to reset controller after a disk reset */ |
| void (*resetproc)(ide_drive_t *); |
| /* special interrupt handling for shared pci interrupts */ |
| void (*intrproc)(ide_drive_t *); |
| /* special host masking for drive selection */ |
| void (*maskproc)(ide_drive_t *, int); |
| /* check host's drive quirk list */ |
| int (*quirkproc)(ide_drive_t *); |
| /* driver soft-power interface */ |
| int (*busproc)(ide_drive_t *, int); |
| // /* host rate limiter */ |
| // u8 (*ratemask)(ide_drive_t *); |
| // /* device rate limiter */ |
| // u8 (*ratefilter)(ide_drive_t *, u8); |
| #endif |
| |
| #if 0 |
| ide_pio_ops_t *pioops; |
| #else |
| void (*ata_input_data)(ide_drive_t *, void *, u32); |
| void (*ata_output_data)(ide_drive_t *, void *, u32); |
| |
| void (*atapi_input_bytes)(ide_drive_t *, void *, u32); |
| void (*atapi_output_bytes)(ide_drive_t *, void *, u32); |
| #endif |
| |
| #if 0 |
| ide_dma_ops_t *dmaops; |
| #else |
| int (*ide_dma_read)(ide_drive_t *drive); |
| int (*ide_dma_write)(ide_drive_t *drive); |
| int (*ide_dma_begin)(ide_drive_t *drive); |
| int (*ide_dma_end)(ide_drive_t *drive); |
| int (*ide_dma_check)(ide_drive_t *drive); |
| int (*ide_dma_on)(ide_drive_t *drive); |
| int (*ide_dma_off)(ide_drive_t *drive); |
| int (*ide_dma_off_quietly)(ide_drive_t *drive); |
| int (*ide_dma_test_irq)(ide_drive_t *drive); |
| int (*ide_dma_host_on)(ide_drive_t *drive); |
| int (*ide_dma_host_off)(ide_drive_t *drive); |
| int (*ide_dma_bad_drive)(ide_drive_t *drive); |
| int (*ide_dma_good_drive)(ide_drive_t *drive); |
| int (*ide_dma_count)(ide_drive_t *drive); |
| int (*ide_dma_verbose)(ide_drive_t *drive); |
| int (*ide_dma_retune)(ide_drive_t *drive); |
| int (*ide_dma_lostirq)(ide_drive_t *drive); |
| int (*ide_dma_timeout)(ide_drive_t *drive); |
| #endif |
| |
| void (*OUTB)(u8 addr, unsigned long port); |
| void (*OUTBSYNC)(ide_drive_t *drive, u8 addr, unsigned long port); |
| void (*OUTW)(u16 addr, unsigned long port); |
| void (*OUTL)(u32 addr, unsigned long port); |
| void (*OUTSW)(unsigned long port, void *addr, u32 count); |
| void (*OUTSL)(unsigned long port, void *addr, u32 count); |
| |
| u8 (*INB)(unsigned long port); |
| u16 (*INW)(unsigned long port); |
| u32 (*INL)(unsigned long port); |
| void (*INSW)(unsigned long port, void *addr, u32 count); |
| void (*INSL)(unsigned long port, void *addr, u32 count); |
| |
| /* dma physical region descriptor table (cpu view) */ |
| unsigned int *dmatable_cpu; |
| /* dma physical region descriptor table (dma view) */ |
| dma_addr_t dmatable_dma; |
| /* Scatter-gather list used to build the above */ |
| struct scatterlist *sg_table; |
| int sg_nents; /* Current number of entries in it */ |
| int sg_dma_direction; /* dma transfer direction */ |
| int sg_dma_active; /* is it in use */ |
| |
| int mmio; /* hosts iomio (0), mmio (1) or custom (2) select */ |
| int rqsize; /* max sectors per request */ |
| int addressing; /* hosts addressing */ |
| int irq; /* our irq number */ |
| int initializing; /* set while initializing self */ |
| |
| unsigned long dma_master; /* reference base addr dmabase */ |
| unsigned long dma_base; /* base addr for dma ports */ |
| unsigned long dma_command; /* dma command register */ |
| unsigned long dma_vendor1; /* dma vendor 1 register */ |
| unsigned long dma_status; /* dma status register */ |
| unsigned long dma_vendor3; /* dma vendor 3 register */ |
| unsigned long dma_prdtable; /* actual prd table address */ |
| unsigned long dma_base2; /* extended base addr for dma ports */ |
| |
| unsigned dma_extra; /* extra addr for dma ports */ |
| unsigned long config_data; /* for use by chipset-specific code */ |
| unsigned long select_data; /* for use by chipset-specific code */ |
| #if (DISK_RECOVERY_TIME > 0) |
| unsigned long last_time; /* time when previous rq was done */ |
| #endif |
| |
| |
| unsigned noprobe : 1; /* don't probe for this interface */ |
| unsigned present : 1; /* this interface exists */ |
| unsigned hold : 1; /* this interface is always present */ |
| unsigned serialized : 1; /* serialized all channel operation */ |
| unsigned sharing_irq: 1; /* 1 = sharing irq with another hwif */ |
| unsigned reset : 1; /* reset after probe */ |
| unsigned autodma : 1; /* auto-attempt using DMA at boot */ |
| unsigned udma_four : 1; /* 1=ATA-66 capable, 0=default */ |
| unsigned highmem : 1; /* can do full 32-bit dma */ |
| unsigned no_dsc : 1; /* 0 default, 1 dsc_overlap disabled */ |
| unsigned sata : 1; /* 0 PATA, 1 SATA */ |
| |
| void *hwif_data; /* extra hwif data */ |
| } ide_hwif_t; |
| |
| /* |
| * internal ide interrupt handler type |
| */ |
| typedef ide_startstop_t (ide_pre_handler_t)(ide_drive_t *, struct request *); |
| typedef ide_startstop_t (ide_handler_t)(ide_drive_t *); |
| typedef ide_startstop_t (ide_post_handler_t)(ide_drive_t *); |
| typedef int (ide_expiry_t)(ide_drive_t *); |
| |
| typedef struct hwgroup_s { |
| /* irq handler, if active */ |
| ide_startstop_t (*handler)(ide_drive_t *); |
| /* irq handler, suspended if active */ |
| ide_startstop_t (*handler_save)(ide_drive_t *); |
| /* BOOL: protects all fields below */ |
| volatile int busy; |
| /* BOOL: wake us up on timer expiry */ |
| int sleeping; |
| /* current drive */ |
| ide_drive_t *drive; |
| /* ptr to current hwif in linked-list */ |
| ide_hwif_t *hwif; |
| |
| /* for pci chipsets */ |
| struct pci_dev *pci_dev; |
| /* chipset device struct */ |
| struct ide_pci_device_s *cds; |
| |
| /* current request */ |
| struct request *rq; |
| /* failsafe timer */ |
| struct timer_list timer; |
| /* local copy of current write rq */ |
| struct request wrq; |
| /* timeout value during long polls */ |
| unsigned long poll_timeout; |
| /* queried upon timeouts */ |
| int (*expiry)(ide_drive_t *); |
| /* ide_system_bus_speed */ |
| int pio_clock; |
| } ide_hwgroup_t; |
| |
| /* structure attached to the request for IDE_TASK_CMDS */ |
| |
| /* |
| * configurable drive settings |
| */ |
| |
| #define TYPE_INT 0 |
| #define TYPE_INTA 1 |
| #define TYPE_BYTE 2 |
| #define TYPE_SHORT 3 |
| |
| #define SETTING_READ (1 << 0) |
| #define SETTING_WRITE (1 << 1) |
| #define SETTING_RW (SETTING_READ | SETTING_WRITE) |
| |
| typedef int (ide_procset_t)(ide_drive_t *, int); |
| typedef struct ide_settings_s { |
| char *name; |
| int rw; |
| int read_ioctl; |
| int write_ioctl; |
| int data_type; |
| int min; |
| int max; |
| int mul_factor; |
| int div_factor; |
| void *data; |
| ide_procset_t *set; |
| int auto_remove; |
| struct ide_settings_s *next; |
| } ide_settings_t; |
| |
| extern struct semaphore ide_setting_sem; |
| extern int ide_add_setting(ide_drive_t *drive, const char *name, int rw, int read_ioctl, int write_ioctl, int data_type, int min, int max, int mul_factor, int div_factor, void *data, ide_procset_t *set); |
| extern void ide_remove_setting(ide_drive_t *drive, char *name); |
| extern ide_settings_t *ide_find_setting_by_name(ide_drive_t *drive, char *name); |
| extern int ide_read_setting(ide_drive_t *t, ide_settings_t *setting); |
| extern int ide_write_setting(ide_drive_t *drive, ide_settings_t *setting, int val); |
| extern void ide_add_generic_settings(ide_drive_t *drive); |
| |
| /* |
| * /proc/ide interface |
| */ |
| typedef struct { |
| const char *name; |
| mode_t mode; |
| read_proc_t *read_proc; |
| write_proc_t *write_proc; |
| } ide_proc_entry_t; |
| |
| #ifdef CONFIG_PROC_FS |
| extern void proc_ide_create(void); |
| extern void proc_ide_destroy(void); |
| extern void destroy_proc_ide_device(ide_hwif_t *, ide_drive_t *); |
| extern void destroy_proc_ide_drives(ide_hwif_t *); |
| extern void create_proc_ide_interfaces(void); |
| extern void ide_add_proc_entries(struct proc_dir_entry *, ide_proc_entry_t *, void *); |
| extern void ide_remove_proc_entries(struct proc_dir_entry *, ide_proc_entry_t *); |
| read_proc_t proc_ide_read_capacity; |
| read_proc_t proc_ide_read_geometry; |
| |
| /* |
| * Standard exit stuff: |
| */ |
| #define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) \ |
| { \ |
| len -= off; \ |
| if (len < count) { \ |
| *eof = 1; \ |
| if (len <= 0) \ |
| return 0; \ |
| } else \ |
| len = count; \ |
| *start = page + off; \ |
| return len; \ |
| } |
| #else |
| #define PROC_IDE_READ_RETURN(page,start,off,count,eof,len) return 0; |
| #endif |
| |
| /* |
| * Subdrivers support. |
| */ |
| #define IDE_SUBDRIVER_VERSION 1 |
| |
| typedef struct ide_driver_s { |
| const char *name; |
| const char *version; |
| u8 media; |
| unsigned busy : 1; |
| unsigned supports_dma : 1; |
| unsigned supports_dsc_overlap : 1; |
| int (*cleanup)(ide_drive_t *); |
| int (*shutdown)(ide_drive_t *); |
| int (*standby)(ide_drive_t *); |
| int (*suspend)(ide_drive_t *); |
| int (*resume)(ide_drive_t *); |
| int (*flushcache)(ide_drive_t *); |
| ide_startstop_t (*do_request)(ide_drive_t *, struct request *, unsigned long); |
| int (*end_request)(ide_drive_t *, int); |
| u8 (*sense)(ide_drive_t *, const char *, u8); |
| ide_startstop_t (*error)(ide_drive_t *, const char *, u8); |
| ide_startstop_t (*abort)(ide_drive_t *, const char *); |
| int (*ioctl)(ide_drive_t *, struct inode *, struct file *, unsigned int, unsigned long); |
| int (*open)(struct inode *, struct file *, ide_drive_t *); |
| void (*release)(struct inode *, struct file *, ide_drive_t *); |
| int (*media_change)(ide_drive_t *); |
| void (*revalidate)(ide_drive_t *); |
| void (*pre_reset)(ide_drive_t *); |
| unsigned long (*capacity)(ide_drive_t *); |
| ide_startstop_t (*special)(ide_drive_t *); |
| ide_proc_entry_t *proc; |
| int (*init)(void); |
| int (*attach)(ide_drive_t *); |
| void (*ata_prebuilder)(ide_drive_t *); |
| void (*atapi_prebuilder)(ide_drive_t *); |
| } ide_driver_t; |
| |
| #define DRIVER(drive) ((drive)->driver) |
| |
| /* |
| * IDE modules. |
| */ |
| #define IDE_CHIPSET_MODULE 0 /* not supported yet */ |
| #define IDE_PROBE_MODULE 1 |
| #define IDE_DRIVER_MODULE 2 |
| |
| typedef int (ide_module_init_proc)(void); |
| |
| typedef struct ide_module_s { |
| int type; |
| ide_module_init_proc *init; |
| void *info; |
| struct ide_module_s *next; |
| } ide_module_t; |
| |
| typedef struct ide_devices_s { |
| char name[4]; /* hdX */ |
| unsigned attached : 1; /* native */ |
| unsigned alttached : 1; /* alternate */ |
| struct ide_devices_s *next; |
| } ide_devices_t; |
| |
| #if 0 |
| typedef enum { |
| IDE_MEDIA_FLOPPY = ide_floppy, |
| IDE_MEDIA_TAPE = ide_tape, |
| IDE_MEDIA_CDROM = ide_cdrom, |
| IDE_MEDIA_OPTICAL = ide_optical, |
| IDE_MEDIA_DISK = ide_disk, |
| IDE_MEDIA_SCSI = ide_scsi, |
| } ide_media_type; |
| |
| struct ide_media { |
| ide_media_type type; |
| char name[4]; |
| atomic_t refcount; /* Maybe this should be a struct module* |
| with MOD_INC instead */ |
| struct list_head devices; |
| }; |
| |
| struct { |
| struct ide_media floppy; |
| struct ide_media tape; |
| struct ide_media cdrom; |
| struct ide_media optical; |
| struct ide_media disk; |
| struct ide_media scsi; |
| } ide_medias; |
| |
| void __init init_media(void) |
| { |
| memset(&ide_medias, 0, sizeof(ide_medias)); |
| |
| ide_medias.floppy.type = IDE_MEDIA_FLOPPY; |
| ide_medias.tape.type = IDE_MEDIA_TAPE; |
| ide_medias.cdrom.type = IDE_MEDIA_CDROM; |
| ide_medias.optical.type = IDE_MEDIA_OPTICAL; |
| ide_medias.disk.type = IDE_MEDIA_DISK; |
| ide_medias.scsi.type = IDE_MEDIA_SCSI; |
| }; |
| #endif |
| |
| /* |
| * ide_hwifs[] is the master data structure used to keep track |
| * of just about everything in ide.c. Whenever possible, routines |
| * should be using pointers to a drive (ide_drive_t *) or |
| * pointers to a hwif (ide_hwif_t *), rather than indexing this |
| * structure directly (the allocation/layout may change!). |
| * |
| */ |
| #ifndef _IDE_C |
| extern ide_hwif_t ide_hwifs[]; /* master data repository */ |
| extern ide_module_t *ide_chipsets; |
| extern ide_module_t *ide_modules; |
| extern ide_module_t *ide_probe; |
| |
| extern ide_devices_t *idedisk; |
| extern ide_devices_t *idecd; |
| extern ide_devices_t *idefloppy; |
| extern ide_devices_t *idetape; |
| extern ide_devices_t *idescsi; |
| |
| #endif |
| extern int noautodma; |
| |
| /* |
| * We need blk.h, but we replace its end_request by our own version. |
| */ |
| #define IDE_DRIVER /* Toggle some magic bits in blk.h */ |
| #define LOCAL_END_REQUEST /* Don't generate end_request in blk.h */ |
| //#define DEVICE_NR(device) (MINOR(device) >> PARTN_BITS) |
| #include <linux/blk.h> |
| |
| extern int ide_end_request(ide_drive_t *, int /* uptodate */); |
| |
| /* |
| * This is used on exit from the driver to designate the next irq handler |
| * and also to start the safety timer. |
| */ |
| extern void ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int, ide_expiry_t *); |
| |
| /* |
| * This is used on exit from the driver to designate the next irq handler |
| * and start the safety time safely and atomically from the IRQ handler |
| * with respect to the command issue (which it also does) |
| */ |
| extern void ide_execute_command(ide_drive_t *, task_ioreg_t cmd, ide_handler_t *, unsigned int, ide_expiry_t *); |
| |
| /* |
| * Error reporting, in human readable form (luxurious, but a memory hog). |
| * |
| * (drive, msg, status) |
| */ |
| extern u8 ide_dump_status(ide_drive_t *, const char *, u8); |
| |
| /* |
| * ide_error() takes action based on the error returned by the controller. |
| * The caller should return immediately after invoking this. |
| * |
| * (drive, msg, status) |
| */ |
| extern ide_startstop_t ide_error(ide_drive_t *, const char *, u8); |
| extern ide_startstop_t ide_abort(ide_drive_t *, const char *); |
| |
| /* |
| * Issue a simple drive command |
| * The drive must be selected beforehand. |
| * |
| * (drive, command, nsector, handler) |
| */ |
| extern void ide_cmd(ide_drive_t *, u8, u8, ide_handler_t *); |
| |
| extern void ide_fix_driveid(struct hd_driveid *); |
| /* |
| * ide_fixstring() cleans up and (optionally) byte-swaps a text string, |
| * removing leading/trailing blanks and compressing internal blanks. |
| * It is primarily used to tidy up the model name/number fields as |
| * returned by the WIN_[P]IDENTIFY commands. |
| * |
| * (s, bytecount, byteswap) |
| */ |
| extern void ide_fixstring(u8 *, const int, const int); |
| |
| /* |
| * This routine busy-waits for the drive status to be not "busy". |
| * It then checks the status for all of the "good" bits and none |
| * of the "bad" bits, and if all is okay it returns 0. All other |
| * cases return 1 after doing "*startstop = ide_error()", and the |
| * caller should return the updated value of "startstop" in this case. |
| * "startstop" is unchanged when the function returns 0; |
| * (startstop, drive, good, bad, timeout) |
| */ |
| extern int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long); |
| |
| /* |
| * This routine is called from the partition-table code in genhd.c |
| * to "convert" a drive to a logical geometry with fewer than 1024 cyls. |
| */ |
| extern int ide_xlate_1024(kdev_t, int, int, const char *); |
| |
| /* |
| * Convert kdev_t structure into ide_drive_t * one. If force is set the |
| * non present drives can be opened. |
| */ |
| extern ide_drive_t *ide_info_ptr(kdev_t i_rdev, int force); |
| |
| /* |
| * Return the current idea about the total capacity of this drive. |
| */ |
| extern unsigned long current_capacity(ide_drive_t *); |
| |
| extern void ide_revalidate_drive(ide_drive_t *); |
| |
| /* |
| * Start a reset operation for an IDE interface. |
| * The caller should return immediately after invoking this. |
| */ |
| extern ide_startstop_t ide_do_reset(ide_drive_t *); |
| |
| /* |
| * This function is intended to be used prior to invoking ide_do_drive_cmd(). |
| */ |
| extern void ide_init_drive_cmd(struct request *); |
| |
| /* |
| * "action" parameter type for ide_do_drive_cmd() below. |
| */ |
| typedef enum { |
| ide_wait, /* insert rq at end of list, and wait for it */ |
| ide_next, /* insert rq immediately after current request */ |
| ide_preempt, /* insert rq in front of current request */ |
| ide_end /* insert rq at end of list, but don't wait for it */ |
| } ide_action_t; |
| |
| /* |
| * This function issues a special IDE device request |
| * onto the request queue. |
| * |
| * If action is ide_wait, then the rq is queued at the end of the |
| * request queue, and the function sleeps until it has been processed. |
| * This is for use when invoked from an ioctl handler. |
| * |
| * If action is ide_preempt, then the rq is queued at the head of |
| * the request queue, displacing the currently-being-processed |
| * request and this function returns immediately without waiting |
| * for the new rq to be completed. This is VERY DANGEROUS, and is |
| * intended for careful use by the ATAPI tape/cdrom driver code. |
| * |
| * If action is ide_next, then the rq is queued immediately after |
| * the currently-being-processed-request (if any), and the function |
| * returns without waiting for the new rq to be completed. As above, |
| * This is VERY DANGEROUS, and is intended for careful use by the |
| * ATAPI tape/cdrom driver code. |
| * |
| * If action is ide_end, then the rq is queued at the end of the |
| * request queue, and the function returns immediately without waiting |
| * for the new rq to be completed. This is again intended for careful |
| * use by the ATAPI tape/cdrom driver code. |
| */ |
| extern int ide_do_drive_cmd(ide_drive_t *, struct request *, ide_action_t); |
| |
| /* |
| * Clean up after success/failure of an explicit drive cmd. |
| * stat/err are used only when (HWGROUP(drive)->rq->cmd == IDE_DRIVE_CMD). |
| * stat/err are used only when (HWGROUP(drive)->rq->cmd == IDE_DRIVE_TASK_MASK). |
| * |
| * (ide_drive_t *drive, u8 stat, u8 err) |
| */ |
| extern void ide_end_drive_cmd(ide_drive_t *, u8, u8); |
| |
| /* |
| * Issue ATA command and wait for completion. |
| * Use for implementing commands in kernel |
| * |
| * (ide_drive_t *drive, u8 cmd, u8 nsect, u8 feature, u8 sectors, u8 *buf) |
| */ |
| extern int ide_wait_cmd(ide_drive_t *, u8, u8, u8, u8, u8 *); |
| |
| /* (ide_drive_t *drive, u8 *buf) */ |
| extern int ide_wait_cmd_task(ide_drive_t *, u8 *); |
| |
| typedef struct ide_task_s { |
| /* |
| * struct hd_drive_task_hdr tf; |
| * task_struct_t tf; |
| * struct hd_drive_hob_hdr hobf; |
| * hob_struct_t hobf; |
| */ |
| task_ioreg_t tfRegister[8]; |
| task_ioreg_t hobRegister[8]; |
| ide_reg_valid_t tf_out_flags; |
| ide_reg_valid_t tf_in_flags; |
| int data_phase; |
| int command_type; |
| ide_pre_handler_t *prehandler; |
| ide_handler_t *handler; |
| ide_post_handler_t *posthandler; |
| struct request *rq; /* copy of request */ |
| void *special; /* valid_t generally */ |
| } ide_task_t; |
| |
| typedef struct pkt_task_s { |
| /* |
| * struct hd_drive_task_hdr pktf; |
| * task_struct_t pktf; |
| * u8 pkcdb[12]; |
| */ |
| task_ioreg_t tfRegister[8]; |
| int data_phase; |
| int command_type; |
| ide_handler_t *handler; |
| struct request *rq; /* copy of request */ |
| void *special; |
| } pkt_task_t; |
| |
| extern void SELECT_DRIVE(ide_drive_t *); |
| extern void SELECT_INTERRUPT(ide_drive_t *); |
| extern void SELECT_MASK(ide_drive_t *, int); |
| extern void QUIRK_LIST(ide_drive_t *); |
| |
| extern void ata_input_data(ide_drive_t *, void *, u32); |
| extern void ata_output_data(ide_drive_t *, void *, u32); |
| extern void atapi_input_bytes(ide_drive_t *, void *, u32); |
| extern void atapi_output_bytes(ide_drive_t *, void *, u32); |
| extern void taskfile_input_data(ide_drive_t *, void *, u32); |
| extern void taskfile_output_data(ide_drive_t *, void *, u32); |
| |
| extern int drive_is_ready(ide_drive_t *); |
| extern int wait_for_ready(ide_drive_t *, int /* timeout */); |
| |
| /* |
| * taskfile io for disks for now...and builds request from ide_ioctl |
| */ |
| extern ide_startstop_t do_rw_taskfile(ide_drive_t *, ide_task_t *); |
| |
| /* (ide_drive_t *drive, u8 stat, u8 err) */ |
| extern void ide_end_taskfile(ide_drive_t *, u8, u8); |
| |
| /* |
| * Special Flagged Register Validation Caller |
| */ |
| extern ide_startstop_t flagged_taskfile(ide_drive_t *, ide_task_t *); |
| |
| extern ide_startstop_t set_multmode_intr(ide_drive_t *); |
| extern ide_startstop_t set_geometry_intr(ide_drive_t *); |
| extern ide_startstop_t recal_intr(ide_drive_t *); |
| extern ide_startstop_t task_no_data_intr(ide_drive_t *); |
| extern ide_startstop_t task_in_intr(ide_drive_t *); |
| extern ide_startstop_t task_mulin_intr(ide_drive_t *); |
| extern ide_startstop_t pre_task_out_intr(ide_drive_t *, struct request *); |
| extern ide_startstop_t task_out_intr(ide_drive_t *); |
| extern ide_startstop_t pre_task_mulout_intr(ide_drive_t *, struct request *); |
| extern ide_startstop_t task_mulout_intr(ide_drive_t *); |
| extern void ide_init_drive_taskfile(struct request *); |
| |
| extern int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *); |
| |
| extern ide_pre_handler_t * ide_pre_handler_parser(struct hd_drive_task_hdr *, struct hd_drive_hob_hdr *); |
| |
| extern ide_handler_t * ide_handler_parser(struct hd_drive_task_hdr *, struct hd_drive_hob_hdr *); |
| |
| extern ide_post_handler_t * ide_post_handler_parser(struct hd_drive_task_hdr *, struct hd_drive_hob_hdr *); |
| |
| /* Expects args is a full set of TF registers and parses the command type */ |
| extern int ide_cmd_type_parser(ide_task_t *); |
| |
| int ide_taskfile_ioctl(ide_drive_t *, struct inode *, struct file *, unsigned int, unsigned long); |
| int ide_cmd_ioctl(ide_drive_t *, struct inode *, struct file *, unsigned int, unsigned long); |
| int ide_task_ioctl(ide_drive_t *, struct inode *, struct file *, unsigned int, unsigned long); |
| |
| #if 0 |
| |
| #define IDEFLOPPY_PC_BUFFER_SIZE 256 |
| #define IDETAPE_PC_BUFFER_SIZE 256 |
| #define IDE_PC_BUFFER_SIZE 256 |
| |
| typedef struct ide_packet_command_s { |
| /* Actual packet bytes */ |
| u8 c[12]; |
| /* On each retry, we increment retries */ |
| int retries; |
| /* Error code */ |
| int error; |
| /* Bytes to transfer */ |
| int request_transfer; |
| /* Bytes actually transferred */ |
| int actually_transferred; |
| /* Size of our data buffer */ |
| int buffer_size; |
| |
| struct buffer_head *bh; |
| u8 *b_data; |
| /* The corresponding request */ |
| struct request *rq; |
| # if 0 |
| /* Scatter gather table */ |
| struct scatterlist *sg; |
| # endif |
| int b_count; |
| /* Data buffer */ |
| u8 *buffer; |
| /* Pointer into the above buffer */ |
| u8 *current_position; |
| /* Called when this packet command is completed */ |
| ide_startstop_t (*callback) (ide_drive_t *); |
| /* Temporary buffer */ |
| u8 pc_buffer[IDE_PC_BUFFER_SIZE]; |
| /* Status/Action bit flags: long for set_bit */ |
| unsigned long flags; |
| } ide_pc_t; |
| |
| ide-cd orthoginal :-/ |
| struct packet_command { |
| char *buffer; |
| int buflen; |
| int stat; |
| int quiet; |
| int timeout; |
| struct request_sense *sense; |
| unsigned char c[12]; |
| }; |
| |
| #endif |
| |
| #ifdef CONFIG_PKT_TASK_IOCTL |
| extern int pkt_taskfile_ioctl(ide_drive_t *, struct inode *, struct file *, unsigned int, unsigned long); |
| #endif /* CONFIG_PKT_TASK_IOCTL */ |
| |
| extern void ide_delay_50ms(void); |
| extern int system_bus_clock(void); |
| |
| extern u8 ide_auto_reduce_xfer(ide_drive_t *); |
| extern int ide_driveid_update(ide_drive_t *); |
| extern int ide_ata66_check(ide_drive_t *, ide_task_t *); |
| extern int ide_config_drive_speed(ide_drive_t *, u8); |
| extern u8 eighty_ninty_three (ide_drive_t *); |
| extern int set_transfer(ide_drive_t *, ide_task_t *); |
| extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *); |
| |
| extern ide_startstop_t __ide_do_rw_disk(ide_drive_t *, struct request *, unsigned long); |
| /* |
| * ide_system_bus_speed() returns what we think is the system VESA/PCI |
| * bus speed (in MHz). This is used for calculating interface PIO timings. |
| * The default is 40 for known PCI systems, 50 otherwise. |
| * The "idebus=xx" parameter can be used to override this value. |
| */ |
| extern int ide_system_bus_speed(void); |
| |
| /* |
| * ide_stall_queue() can be used by a drive to give excess bandwidth back |
| * to the hwgroup by sleeping for timeout jiffies. |
| */ |
| extern void ide_stall_queue(ide_drive_t *, unsigned long); |
| |
| /* |
| * ide_get_queue() returns the queue which corresponds to a given device. |
| */ |
| extern request_queue_t *ide_get_queue(kdev_t dev); |
| |
| extern int ide_spin_wait_hwgroup(ide_drive_t *); |
| extern void ide_timer_expiry(unsigned long); |
| extern void ide_intr(int irq, void *dev_id, struct pt_regs *regs); |
| extern void do_ide_request(request_queue_t *); |
| extern void ide_init_subdrivers(void); |
| |
| extern struct block_device_operations ide_fops[]; |
| extern ide_proc_entry_t generic_subdriver_entries[]; |
| |
| extern int ide_attach_drive(ide_drive_t *); |
| |
| extern int ideprobe_init(void); |
| extern int idedefault_attach(ide_drive_t *); |
| extern int idedefault_init(void); |
| extern int idedisk_attach(ide_drive_t *); |
| extern int idedisk_init(void); |
| extern int ide_cdrom_attach(ide_drive_t *); |
| extern int ide_cdrom_init(void); |
| extern int idetape_attach(ide_drive_t *); |
| extern int idetape_init(void); |
| extern int idefloppy_attach(ide_drive_t *); |
| extern int idefloppy_init(void); |
| extern int idescsi_attach(ide_drive_t *); |
| extern int idescsi_init(void); |
| |
| extern void ide_scan_pcibus(int scan_direction) __init; |
| extern int ide_pci_register_driver(struct pci_driver *driver); |
| extern void ide_pci_unregister_driver(struct pci_driver *driver); |
| |
| extern void default_hwif_iops(ide_hwif_t *); |
| extern void default_hwif_mmiops(ide_hwif_t *); |
| extern void default_hwif_transport(ide_hwif_t *); |
| |
| |
| extern int ide_register_module(ide_module_t *module); |
| extern void ide_unregister_module(ide_module_t *module); |
| extern ide_drive_t *ide_scan_devices(u8, const char *, ide_driver_t *, int); |
| extern int ide_register_subdriver(ide_drive_t *, ide_driver_t *, int /* ver */); |
| extern int ide_unregister_subdriver(ide_drive_t *); |
| extern int ide_replace_subdriver(ide_drive_t *, const char * /* driver*/); |
| |
| #ifdef CONFIG_PROC_FS |
| typedef struct ide_pci_host_proc_s { |
| char *name; |
| u8 set; |
| get_info_t *get_info; |
| struct proc_dir_entry *parent; |
| struct ide_pci_host_proc_s *next; |
| } ide_pci_host_proc_t; |
| |
| void ide_pci_register_host_proc(ide_pci_host_proc_t *); |
| #endif /* CONFIG_PROC_FS */ |
| |
| #define ON_BOARD 1 |
| #define NEVER_BOARD 0 |
| |
| #ifdef CONFIG_BLK_DEV_OFFBOARD |
| # define OFF_BOARD ON_BOARD |
| #else /* CONFIG_BLK_DEV_OFFBOARD */ |
| # define OFF_BOARD NEVER_BOARD |
| #endif /* CONFIG_BLK_DEV_OFFBOARD */ |
| |
| #define NODMA 0 |
| #define NOAUTODMA 1 |
| #define AUTODMA 2 |
| #define EOL 255 |
| |
| typedef struct ide_pci_enablebit_s { |
| u8 reg; /* byte pci reg holding the enable-bit */ |
| u8 mask; /* mask to isolate the enable-bit */ |
| u8 val; /* value of masked reg when "enabled" */ |
| } ide_pci_enablebit_t; |
| |
| typedef struct ide_pci_device_s { |
| u16 vendor; |
| u16 device; |
| char *name; |
| void (*init_setup)(struct pci_dev *, struct ide_pci_device_s *); |
| unsigned int (*init_chipset)(struct pci_dev *, const char *); |
| void (*init_iops)(ide_hwif_t *); |
| void (*init_hwif)(ide_hwif_t *); |
| void (*init_dma)(ide_hwif_t *, unsigned long); |
| u8 channels; |
| u8 autodma; |
| ide_pci_enablebit_t enablebits[2]; |
| u8 bootable; |
| unsigned int extra; |
| struct ide_pci_device_s *next; |
| } ide_pci_device_t; |
| |
| extern void ide_setup_pci_device(struct pci_dev *, ide_pci_device_t *); |
| extern void ide_setup_pci_devices(struct pci_dev *, struct pci_dev *, ide_pci_device_t *); |
| |
| #define BAD_DMA_DRIVE 0 |
| #define GOOD_DMA_DRIVE 1 |
| |
| #ifdef CONFIG_BLK_DEV_IDEDMA_PCI |
| extern int ide_build_dmatable(ide_drive_t *, struct request *, int); |
| extern void ide_destroy_dmatable(ide_drive_t *); |
| extern ide_startstop_t ide_dma_intr(ide_drive_t *); |
| extern int ide_release_dma(ide_hwif_t *); |
| extern void ide_setup_dma(ide_hwif_t *, unsigned long, unsigned int); |
| extern void ide_setup_no_dma(ide_hwif_t *); |
| |
| extern int __ide_dma_host_off(ide_drive_t *); |
| extern int __ide_dma_off_quietly(ide_drive_t *); |
| extern int __ide_dma_off(ide_drive_t *); |
| extern int __ide_dma_host_on(ide_drive_t *); |
| extern int __ide_dma_on(ide_drive_t *); |
| extern int __ide_dma_check(ide_drive_t *); |
| extern int __ide_dma_read(ide_drive_t *); |
| extern int __ide_dma_write(ide_drive_t *); |
| extern int __ide_dma_begin(ide_drive_t *); |
| extern int __ide_dma_end(ide_drive_t *); |
| extern int __ide_dma_test_irq(ide_drive_t *); |
| extern int __ide_dma_bad_drive(ide_drive_t *); |
| extern int __ide_dma_good_drive(ide_drive_t *); |
| extern int __ide_dma_count(ide_drive_t *); |
| extern int __ide_dma_verbose(ide_drive_t *); |
| extern int __ide_dma_retune(ide_drive_t *); |
| extern int __ide_dma_lostirq(ide_drive_t *); |
| extern int __ide_dma_timeout(ide_drive_t *); |
| #else |
| static inline void ide_setup_dma(ide_hwif_t *x, unsigned long y, unsigned int z) {;} |
| static inline void ide_release_dma(ide_hwif_t *x) {;} |
| static inline void ide_setup_no_dma(ide_hwif_t *x) {;} |
| #endif |
| |
| extern void hwif_unregister(ide_hwif_t *); |
| |
| extern void ide_probe_reset(ide_hwif_t *); |
| extern void ide_tune_drives(ide_hwif_t *); |
| extern int ide_wait_hwif_ready(ide_hwif_t *); |
| extern u8 ide_probe_for_drive(ide_drive_t *); |
| |
| |
| extern void export_ide_init_queue(ide_drive_t *); |
| extern u8 export_probe_for_drive(ide_drive_t *); |
| extern int probe_hwif_init(ide_hwif_t *); |
| |
| static inline void *ide_get_hwifdata (ide_hwif_t * hwif) |
| { |
| return hwif->hwif_data; |
| } |
| |
| static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data) |
| { |
| hwif->hwif_data = data; |
| } |
| |
| /* ide-lib.c */ |
| extern u8 ide_dma_speed(ide_drive_t *drive, u8 mode); |
| extern u8 ide_rate_filter(u8 mode, u8 speed); |
| extern int ide_dma_enable(ide_drive_t *drive); |
| extern char *ide_xfer_verbose(u8 xfer_rate); |
| extern void ide_toggle_bounce(ide_drive_t *drive, int on); |
| extern int ide_set_xfer_rate(ide_drive_t *drive, u8 rate); |
| |
| /* ide driver registration */ |
| typedef void (*ide_driver_call)(void); |
| extern void __init ide_register_driver(ide_driver_call); |
| |
| /* ide locks for 2.4 */ |
| |
| #define ide_lock (io_request_lock) |
| #define DRIVE_LOCK(drive) ((drive)->queue.queue_lock) |
| |
| |
| #endif /* _IDE_H */ |