patch-2.4.21 linux-2.4.21/include/linux/ide.h
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- Lines: 1971
- Date:
2003-06-13 07:51:38.000000000 -0700
- Orig file:
linux-2.4.20/include/linux/ide.h
- Orig date:
2002-11-28 15:53:15.000000000 -0800
diff -urN linux-2.4.20/include/linux/ide.h linux-2.4.21/include/linux/ide.h
@@ -3,7 +3,7 @@
/*
* linux/include/linux/ide.h
*
- * Copyright (C) 1994-1998 Linus Torvalds & authors
+ * Copyright (C) 1994-2002 Linus Torvalds & authors
*/
#include <linux/config.h>
@@ -14,7 +14,37 @@
#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.
@@ -63,6 +93,13 @@
#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*/
@@ -88,8 +125,17 @@
#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 */
/*
@@ -160,9 +206,6 @@
#define IDE_BCOUNTL_REG IDE_LCYL_REG
#define IDE_BCOUNTH_REG IDE_HCYL_REG
-#define GET_ERR() IN_BYTE(IDE_ERROR_REG)
-#define GET_STAT() IN_BYTE(IDE_STATUS_REG)
-#define GET_ALTSTAT() IN_BYTE(IDE_CONTROL_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)
@@ -170,6 +213,43 @@
#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
*/
@@ -178,21 +258,12 @@
#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 CASCADE_DRIVES 8 /* per interface; 8|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))
-#ifndef SPLIT_WORD
-# define SPLIT_WORD(W,HB,LB) ((HB)=(W>>8), (LB)=(W-((W>>8)<<8)))
-#endif
-#ifndef MAKE_WORD
-# define MAKE_WORD(W,HB,LB) ((W)=((HB<<8)+LB))
-#endif
-
-
/*
* Timeouts for various operations:
*/
@@ -207,47 +278,11 @@
#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 SELECT_DRIVE(hwif,drive) \
-{ \
- if (hwif->selectproc) \
- hwif->selectproc(drive); \
- OUT_BYTE((drive)->select.all, hwif->io_ports[IDE_SELECT_OFFSET]); \
-}
-
-#define SELECT_INTERRUPT(hwif,drive) \
-{ \
- if (hwif->intrproc) \
- hwif->intrproc(drive); \
- else \
- OUT_BYTE((drive)->ctl|2, hwif->io_ports[IDE_CONTROL_OFFSET]); \
-}
-
-#define SELECT_MASK(hwif,drive,mask) \
-{ \
- if (hwif->maskproc) \
- hwif->maskproc(drive,mask); \
-}
-
-#define SELECT_READ_WRITE(hwif,drive,func) \
-{ \
- if (hwif->rwproc) \
- hwif->rwproc(drive,func); \
-}
-
-#define QUIRK_LIST(hwif,drive) \
-{ \
- if (hwif->quirkproc) \
- (drive)->quirk_list = hwif->quirkproc(drive); \
-}
-
#define HOST(hwif,chipset) \
{ \
return ((hwif)->chipset == chipset) ? 1 : 0; \
}
-#define IDE_DEBUG(lineno) \
- printk("%s,%s,line=%d\n", __FILE__, __FUNCTION__, (lineno))
-
/*
* Check for an interrupt and acknowledge the interrupt status
*/
@@ -267,7 +302,7 @@
ide_qd65xx, ide_umc8672, ide_ht6560b,
ide_pdc4030, ide_rz1000, ide_trm290,
ide_cmd646, ide_cy82c693, ide_4drives,
- ide_pmac, ide_etrax100
+ ide_pmac, ide_etrax100, ide_acorn
} hwif_chipset_t;
/*
@@ -280,6 +315,8 @@
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;
/*
@@ -296,34 +333,23 @@
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>
-/*
- * If the arch-dependant ide.h did not declare/define any OUT_BYTE
- * or IN_BYTE functions, we make some defaults here.
- */
-
-#ifndef HAVE_ARCH_OUT_BYTE
-#ifdef REALLY_FAST_IO
-#define OUT_BYTE(b,p) outb((b),(p))
-#define OUT_WORD(w,p) outw((w),(p))
-#else
-#define OUT_BYTE(b,p) outb_p((b),(p))
-#define OUT_WORD(w,p) outw_p((w),(p))
-#endif
+/* Currently only m68k, apus and m8xx need it */
+#ifndef IDE_ARCH_ACK_INTR
+# define ide_ack_intr(hwif) (1)
#endif
-#ifndef HAVE_ARCH_IN_BYTE
-#ifdef REALLY_FAST_IO
-#define IN_BYTE(p) (byte)inb(p)
-#define IN_WORD(p) (short)inw(p)
-#else
-#define IN_BYTE(p) (byte)inb_p(p)
-#define IN_WORD(p) (short)inw_p(p)
-#endif
-#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
@@ -336,269 +362,690 @@
#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; /* all of the bits together */
+ unsigned all : 8;
struct {
- unsigned set_geometry : 1; /* respecify drive geometry */
- unsigned recalibrate : 1; /* seek to cyl 0 */
- unsigned set_multmode : 1; /* set multmode count */
- unsigned set_tune : 1; /* tune interface for drive */
- unsigned reserved : 4; /* unused */
+#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 {
- request_queue_t queue; /* request queue */
+ 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 */
- byte keep_settings; /* restore settings after drive reset */
- byte using_dma; /* disk is using dma for read/write */
- byte retry_pio; /* retrying dma capable host in pio */
- byte state; /* retry state */
- byte waiting_for_dma; /* dma currently in progress */
- byte unmask; /* flag: okay to unmask other irqs */
- byte slow; /* flag: slow data port */
- byte bswap; /* flag: byte swap data */
- byte dsc_overlap; /* flag: DSC overlap */
- byte nice1; /* flag: give potential excess bandwidth */
+ 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; /* flag: do not probe bios for drive */
+ unsigned nobios : 1; /* do not probe bios for drive */
unsigned revalidate : 1; /* request revalidation */
- unsigned atapi_overlap : 1; /* flag: ATAPI overlap (not supported) */
- unsigned nice0 : 1; /* flag: give obvious excess bandwidth */
- unsigned nice2 : 1; /* flag: give a share in our own bandwidth */
- unsigned doorlocking : 1; /* flag: for removable only: door lock/unlock works */
+ 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 addressing; /* : 2; 0=28-bit, 1=48-bit, 2=64-bit */
- byte scsi; /* 0=default, 1=skip current ide-subdriver for ide-scsi emulation */
- byte media; /* disk, cdrom, tape, floppy, ... */
- select_t select; /* basic drive/head select reg value */
- byte ctl; /* "normal" value for IDE_CONTROL_REG */
- byte ready_stat; /* min status value for drive ready */
- byte mult_count; /* current multiple sector setting */
- byte mult_req; /* requested multiple sector setting */
- byte tune_req; /* requested drive tuning setting */
- byte io_32bit; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */
- byte bad_wstat; /* used for ignoring WRERR_STAT */
- byte nowerr; /* used for ignoring WRERR_STAT */
- byte sect0; /* offset of first sector for DM6:DDO */
- unsigned int usage; /* current "open()" count for drive */
- byte head; /* "real" number of heads */
- byte sect; /* "real" sectors per track */
- byte bios_head; /* BIOS/fdisk/LILO number of heads */
- byte bios_sect; /* BIOS/fdisk/LILO sectors per track */
+ 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 long capacity; /* total number of sectors */
- unsigned long long capacity48; /* total number of sectors */
- unsigned int drive_data; /* for use by tuneproc/selectproc as needed */
- void *hwif; /* actually (ide_hwif_t *) */
- wait_queue_head_t wqueue; /* used to wait for drive in open() */
- struct hd_driveid *id; /* drive model identification info */
- struct hd_struct *part; /* drive partition table */
- char name[4]; /* drive name, such as "hda" */
- void *driver; /* (ide_driver_t *) */
- void *driver_data; /* extra driver data */
- devfs_handle_t de; /* directory for device */
- struct proc_dir_entry *proc; /* /proc/ide/ directory entry */
- void *settings; /* /proc/ide/ drive settings */
- char driver_req[10]; /* requests specific driver */
+ 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 */
- byte quirk_list; /* drive is considered quirky if set for a specific host */
- byte suspend_reset; /* drive suspend mode flag, soft-reset recovers */
- byte init_speed; /* transfer rate set at boot */
- byte current_speed; /* current transfer rate set */
- byte dn; /* now wide spread use */
- byte wcache; /* status of write cache */
- byte acoustic; /* acoustic management */
- unsigned int failures; /* current failure count */
- unsigned int max_failures; /* maximum allowed failure count */
} ide_drive_t;
-/*
- * An ide_dmaproc_t() initiates/aborts DMA read/write operations on a drive.
- *
- * The caller is assumed to have selected the drive and programmed the drive's
- * sector address using CHS or LBA. All that remains is to prepare for DMA
- * and then issue the actual read/write DMA/PIO command to the drive.
- *
- * Returns 0 if all went well.
- * Returns 1 if DMA read/write could not be started, in which case the caller
- * should either try again later, or revert to PIO for the current request.
- */
-typedef enum { ide_dma_read, ide_dma_write, ide_dma_begin,
- ide_dma_end, ide_dma_check, ide_dma_on,
- ide_dma_off, ide_dma_off_quietly, ide_dma_test_irq,
- ide_dma_bad_drive, ide_dma_good_drive,
- ide_dma_verbose, ide_dma_retune,
- ide_dma_lostirq, ide_dma_timeout
-} ide_dma_action_t;
-
-typedef int (ide_dmaproc_t)(ide_dma_action_t, 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;
/*
- * An ide_ideproc_t() performs CPU-polled transfers to/from a drive.
- * Arguments are: the drive, the buffer pointer, and the length (in bytes or
- * words depending on if it's an IDE or ATAPI call).
- *
- * If it is not defined for a controller, standard-code is used from ide.c.
- *
- * Controllers which are not memory-mapped in the standard way need to
- * override that mechanism using this function to work.
+ * mapping stuff, prepare for highmem...
*
+ * temporarily mapping a (possible) highmem bio for PIO transfer
*/
-typedef enum { ideproc_ide_input_data, ideproc_ide_output_data,
- ideproc_atapi_input_bytes, ideproc_atapi_output_bytes
-} ide_ide_action_t;
+#define ide_rq_offset(rq) \
+ (((rq)->hard_cur_sectors - (rq)->current_nr_sectors) << 9)
-typedef void (ide_ideproc_t)(ide_ide_action_t, ide_drive_t *, void *, unsigned int);
-
-/*
- * An ide_tuneproc_t() is used to set the speed of an IDE interface
- * to a particular PIO mode. The "byte" parameter is used
- * to select the PIO mode by number (0,1,2,3,4,5), and a value of 255
- * indicates that the interface driver should "auto-tune" the PIO mode
- * according to the drive capabilities in drive->id;
- *
- * Not all interface types support tuning, and not all of those
- * support all possible PIO settings. They may silently ignore
- * or round values as they see fit.
- */
-typedef void (ide_tuneproc_t) (ide_drive_t *, byte);
-typedef int (ide_speedproc_t) (ide_drive_t *, byte);
-
-/*
- * This is used to provide support for strange interfaces
- */
-typedef void (ide_selectproc_t) (ide_drive_t *);
-typedef void (ide_resetproc_t) (ide_drive_t *);
-typedef int (ide_quirkproc_t) (ide_drive_t *);
-typedef void (ide_intrproc_t) (ide_drive_t *);
-typedef void (ide_maskproc_t) (ide_drive_t *, int);
-typedef void (ide_rw_proc_t) (ide_drive_t *, ide_dma_action_t);
+static inline void *ide_map_buffer(struct request *rq, unsigned long *flags)
+{
+ return bh_kmap_irq(rq->bh, flags) + ide_rq_offset(rq);
+}
-/*
- * ide soft-power support
- */
-typedef int (ide_busproc_t) (ide_drive_t *, int);
+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)
-#ifdef CONFIG_BLK_DEV_IDEPCI
-typedef struct ide_pci_devid_s {
- unsigned short vid;
- unsigned short did;
-} ide_pci_devid_t;
-
-#define IDE_PCI_DEVID_NULL ((ide_pci_devid_t){0,0})
-#define IDE_PCI_DEVID_EQ(a,b) (a.vid == b.vid && a.did == b.did)
-#endif /* CONFIG_BLK_DEV_IDEPCI */
+struct ide_pci_device_s;
typedef struct hwif_s {
- struct hwif_s *next; /* for linked-list in ide_hwgroup_t */
- void *hwgroup; /* actually (ide_hwgroup_t *) */
- ide_ioreg_t io_ports[IDE_NR_PORTS]; /* task file registers */
+ 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 */
- struct gendisk *gd; /* gendisk structure */
- ide_tuneproc_t *tuneproc; /* routine to tune PIO mode for drives */
- ide_speedproc_t *speedproc; /* routine to retune DMA modes for drives */
- ide_selectproc_t *selectproc; /* tweaks hardware to select drive */
- ide_resetproc_t *resetproc; /* routine to reset controller after a disk reset */
- ide_intrproc_t *intrproc; /* special interrupt handling for shared pci interrupts */
- ide_maskproc_t *maskproc; /* special host masking for drive selection */
- ide_quirkproc_t *quirkproc; /* check host's drive quirk list */
- ide_rw_proc_t *rwproc; /* adjust timing based upon rq->cmd direction */
- ide_ideproc_t *ideproc; /* CPU-polled transfer routine */
- ide_dmaproc_t *dmaproc; /* dma read/write/abort routine */
- unsigned int *dmatable_cpu; /* dma physical region descriptor table (cpu view) */
- dma_addr_t dmatable_dma; /* dma physical region descriptor table (dma view) */
- struct scatterlist *sg_table; /* Scatter-gather list used to build the above */
+
+ 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 */
- struct hwif_s *mate; /* other hwif from same PCI chip */
+
+ 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 */
- struct proc_dir_entry *proc; /* /proc/ide/ directory entry */
- int irq; /* our irq number */
- byte major; /* our major number */
- char name[6]; /* name of interface, eg. "ide0" */
- byte index; /* 0 for ide0; 1 for ide1; ... */
- hwif_chipset_t chipset; /* sub-module for tuning.. */
+#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 serialized : 1; /* serialized operation with mate hwif */
+ 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; /* automatically try to enable DMA at boot */
+ unsigned autodma : 1; /* auto-attempt using DMA at boot */
unsigned udma_four : 1; /* 1=ATA-66 capable, 0=default */
- unsigned no_highio : 1; /* don't trust pci dma mask, bounce */
- byte channel; /* for dual-port chips: 0=primary, 1=secondary */
-#ifdef CONFIG_BLK_DEV_IDEPCI
- struct pci_dev *pci_dev; /* for pci chipsets */
- ide_pci_devid_t pci_devid; /* for pci chipsets: {VID,DID} */
-#endif /* CONFIG_BLK_DEV_IDEPCI */
-#if (DISK_RECOVERY_TIME > 0)
- unsigned long last_time; /* time when previous rq was done */
-#endif
- byte straight8; /* Alan's straight 8 check */
+ unsigned highmem : 1; /* can do full 32-bit dma */
+ unsigned no_dsc : 1; /* 0 default, 1 dsc_overlap disabled */
+
void *hwif_data; /* extra hwif data */
- ide_busproc_t *busproc; /* driver soft-power interface */
- byte bus_state; /* power state of the IDE bus */
} ide_hwif_t;
/*
- * Status returned from various ide_ functions
- */
-typedef enum {
- ide_stopped, /* no drive operation was started */
- ide_started /* a drive operation was started, and a handler was set */
-} ide_startstop_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 *);
-
-/*
- * when ide_timer_expiry fires, invoke a handler of this type
- * to decide what to do.
- */
typedef int (ide_expiry_t)(ide_drive_t *);
typedef struct hwgroup_s {
- ide_handler_t *handler;/* irq handler, if active */
- volatile int busy; /* BOOL: protects all fields below */
- int sleeping; /* BOOL: wake us up on timer expiry */
- ide_drive_t *drive; /* current drive */
- ide_hwif_t *hwif; /* ptr to current hwif in linked-list */
- struct request *rq; /* current request */
- struct timer_list timer; /* failsafe timer */
- struct request wrq; /* local copy of current write rq */
- unsigned long poll_timeout; /* timeout value during long polls */
- ide_expiry_t *expiry; /* queried upon timeouts */
+ /* 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 */
@@ -633,12 +1080,13 @@
struct ide_settings_s *next;
} ide_settings_t;
-void 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);
-void ide_remove_setting(ide_drive_t *drive, char *name);
-ide_settings_t *ide_find_setting_by_name(ide_drive_t *drive, char *name);
-int ide_read_setting(ide_drive_t *t, ide_settings_t *setting);
-int ide_write_setting(ide_drive_t *drive, ide_settings_t *setting, int val);
-void ide_add_generic_settings(ide_drive_t *drive);
+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
@@ -651,14 +1099,14 @@
} ide_proc_entry_t;
#ifdef CONFIG_PROC_FS
-void proc_ide_create(void);
-void proc_ide_destroy(void);
-void recreate_proc_ide_device(ide_hwif_t *, ide_drive_t *);
-void destroy_proc_ide_device(ide_hwif_t *, ide_drive_t *);
-void destroy_proc_ide_drives(ide_hwif_t *);
-void create_proc_ide_interfaces(void);
-void ide_add_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p, void *data);
-void ide_remove_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p);
+extern void proc_ide_create(void);
+extern void proc_ide_destroy(void);
+extern void recreate_proc_ide_device(ide_hwif_t *, ide_drive_t *);
+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;
@@ -686,51 +1134,40 @@
*/
#define IDE_SUBDRIVER_VERSION 1
-typedef int (ide_cleanup_proc)(ide_drive_t *);
-typedef int (ide_standby_proc)(ide_drive_t *);
-typedef int (ide_flushcache_proc)(ide_drive_t *);
-typedef ide_startstop_t (ide_do_request_proc)(ide_drive_t *, struct request *, unsigned long);
-typedef void (ide_end_request_proc)(byte, ide_hwgroup_t *);
-typedef int (ide_ioctl_proc)(ide_drive_t *, struct inode *, struct file *, unsigned int, unsigned long);
-typedef int (ide_open_proc)(struct inode *, struct file *, ide_drive_t *);
-typedef void (ide_release_proc)(struct inode *, struct file *, ide_drive_t *);
-typedef int (ide_check_media_change_proc)(ide_drive_t *);
-typedef void (ide_revalidate_proc)(ide_drive_t *);
-typedef void (ide_pre_reset_proc)(ide_drive_t *);
-typedef unsigned long (ide_capacity_proc)(ide_drive_t *);
-typedef ide_startstop_t (ide_special_proc)(ide_drive_t *);
-typedef void (ide_setting_proc)(ide_drive_t *);
-typedef int (ide_reinit_proc)(ide_drive_t *);
-typedef void (ata_prebuilder_proc)(ide_drive_t *);
-typedef void (atapi_prebuilder_proc)(ide_drive_t *);
-
typedef struct ide_driver_s {
const char *name;
const char *version;
- byte media;
+ u8 media;
unsigned busy : 1;
unsigned supports_dma : 1;
unsigned supports_dsc_overlap : 1;
- ide_cleanup_proc *cleanup;
- ide_standby_proc *standby;
- ide_flushcache_proc *flushcache;
- ide_do_request_proc *do_request;
- ide_end_request_proc *end_request;
- ide_ioctl_proc *ioctl;
- ide_open_proc *open;
- ide_release_proc *release;
- ide_check_media_change_proc *media_change;
- ide_revalidate_proc *revalidate;
- ide_pre_reset_proc *pre_reset;
- ide_capacity_proc *capacity;
- ide_special_proc *special;
- ide_proc_entry_t *proc;
- ide_reinit_proc *reinit;
- ata_prebuilder_proc *ata_prebuilder;
- atapi_prebuilder_proc *atapi_prebuilder;
+ 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) ((ide_driver_t *)((drive)->driver))
+#define DRIVER(drive) ((drive)->driver)
/*
* IDE modules.
@@ -748,6 +1185,53 @@
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
@@ -758,8 +1242,16 @@
*/
#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;
@@ -768,56 +1260,58 @@
*/
#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>
-void ide_end_request(byte uptodate, ide_hwgroup_t *hwgroup);
+extern int ide_end_request(ide_drive_t *, int /* uptodate */);
/*
- * This is used for (nearly) all data transfers from/to the IDE interface
- * FIXME for 2.5, to a pointer pass verses memcpy........
- */
-void ide_input_data (ide_drive_t *drive, void *buffer, unsigned int wcount);
-void ide_output_data (ide_drive_t *drive, void *buffer, unsigned int wcount);
-
-/*
- * This is used for (nearly) all ATAPI data transfers from/to the IDE interface
- * FIXME for 2.5, to a pointer pass verses memcpy........
+ * This is used on exit from the driver to designate the next irq handler
+ * and also to start the safety timer.
*/
-void atapi_input_bytes (ide_drive_t *drive, void *buffer, unsigned int bytecount);
-void atapi_output_bytes (ide_drive_t *drive, void *buffer, unsigned int bytecount);
-
-int drive_is_ready (ide_drive_t *drive);
+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 also to start the safety timer.
+ * 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)
*/
-void ide_set_handler (ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry);
+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)
*/
-byte ide_dump_status (ide_drive_t *drive, const char *msg, byte stat);
+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)
*/
-ide_startstop_t ide_error (ide_drive_t *drive, const char *msg, byte stat);
+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)
*/
-void ide_cmd (ide_drive_t *drive, byte cmd, byte nsect, ide_handler_t *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)
*/
-void ide_fixstring (byte *s, const int bytecount, const int byteswap);
+extern void ide_fixstring(u8 *, const int, const int);
/*
* This routine busy-waits for the drive status to be not "busy".
@@ -826,43 +1320,44 @@
* 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)
*/
-int ide_wait_stat (ide_startstop_t *startstop, ide_drive_t *drive, byte good, byte bad, unsigned long timeout);
-
-int ide_wait_noerr (ide_drive_t *drive, byte good, byte bad, unsigned long 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.
*/
-int ide_xlate_1024 (kdev_t, int, int, const char *);
+extern int ide_xlate_1024(kdev_t, int, int, const char *);
/*
* Convert kdev_t structure into ide_drive_t * one.
*/
-ide_drive_t *get_info_ptr (kdev_t i_rdev);
+extern ide_drive_t *get_info_ptr(kdev_t i_rdev);
/*
* Return the current idea about the total capacity of this drive.
*/
-unsigned long current_capacity (ide_drive_t *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.
*/
-ide_startstop_t ide_do_reset (ide_drive_t *);
+extern ide_startstop_t ide_do_reset(ide_drive_t *);
/*
* Re-Start an operation for an IDE interface.
* The caller should return immediately after invoking this.
*/
-ide_startstop_t restart_request (ide_drive_t *);
+extern int restart_request(ide_drive_t *, struct request *);
/*
* This function is intended to be used prior to invoking ide_do_drive_cmd().
*/
-void ide_init_drive_cmd (struct request *rq);
+extern void ide_init_drive_cmd(struct request *);
/*
* "action" parameter type for ide_do_drive_cmd() below.
@@ -875,21 +1370,6 @@
} ide_action_t;
/*
- * temporarily mapping a (possible) highmem bio
- */
-#define ide_rq_offset(rq) (((rq)->hard_cur_sectors - (rq)->current_nr_sectors) << 9)
-
-extern inline void *ide_map_buffer(struct request *rq, unsigned long *flags)
-{
- return bh_kmap_irq(rq->bh, flags) + ide_rq_offset(rq);
-}
-
-extern inline void ide_unmap_buffer(char *buffer, unsigned long *flags)
-{
- bh_kunmap_irq(buffer, flags);
-}
-
-/*
* This function issues a special IDE device request
* onto the request queue.
*
@@ -914,23 +1394,35 @@
* for the new rq to be completed. This is again intended for careful
* use by the ATAPI tape/cdrom driver code.
*/
-int ide_do_drive_cmd (ide_drive_t *drive, struct request *rq, ide_action_t action);
+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)
*/
-void ide_end_drive_cmd (ide_drive_t *drive, byte stat, byte 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
+ * 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)
*/
-int ide_wait_cmd (ide_drive_t *drive, int cmd, int nsect, int feature, int sectors, byte *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 *);
-int ide_wait_cmd_task (ide_drive_t *drive, byte *buf);
-
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;
@@ -940,179 +1432,320 @@
ide_pre_handler_t *prehandler;
ide_handler_t *handler;
ide_post_handler_t *posthandler;
- void *special; /* valid_t generally */
struct request *rq; /* copy of request */
- unsigned long block; /* copy of block */
+ 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;
- void *special;
struct request *rq; /* copy of request */
- unsigned long block; /* copy of block */
+ void *special;
} pkt_task_t;
-/*
- * taskfile io for disks for now...
- */
-ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task);
+extern inline void SELECT_DRIVE(ide_drive_t *);
+extern inline void SELECT_INTERRUPT(ide_drive_t *);
+extern inline void SELECT_MASK(ide_drive_t *, int);
+extern inline 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 */);
/*
- * Builds request from ide_ioctl
+ * taskfile io for disks for now...and builds request from ide_ioctl
*/
-void do_taskfile (ide_drive_t *drive, struct hd_drive_task_hdr *taskfile, struct hd_drive_hob_hdr *hobfile, ide_handler_t *handler);
+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
*/
-// ide_startstop_t flagged_taskfile (ide_drive_t *drive, ide_task_t *task);
+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 *);
-ide_startstop_t set_multmode_intr (ide_drive_t *drive);
-ide_startstop_t set_geometry_intr (ide_drive_t *drive);
-ide_startstop_t recal_intr (ide_drive_t *drive);
-ide_startstop_t task_no_data_intr (ide_drive_t *drive);
-ide_startstop_t task_in_intr (ide_drive_t *drive);
-ide_startstop_t task_mulin_intr (ide_drive_t *drive);
-ide_startstop_t pre_task_out_intr (ide_drive_t *drive, struct request *rq);
-ide_startstop_t task_out_intr (ide_drive_t *drive);
-ide_startstop_t task_mulout_intr (ide_drive_t *drive);
-void ide_init_drive_taskfile (struct request *rq);
+extern int ide_raw_taskfile(ide_drive_t *, ide_task_t *, u8 *);
-int ide_wait_taskfile (ide_drive_t *drive, struct hd_drive_task_hdr *taskfile, struct hd_drive_hob_hdr *hobfile, byte *buf);
+extern ide_pre_handler_t * ide_pre_handler_parser(struct hd_drive_task_hdr *, struct hd_drive_hob_hdr *);
-int ide_raw_taskfile (ide_drive_t *drive, ide_task_t *cmd, byte *buf);
+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 *);
-ide_pre_handler_t * ide_pre_handler_parser (struct hd_drive_task_hdr *taskfile, struct hd_drive_hob_hdr *hobfile);
-ide_handler_t * ide_handler_parser (struct hd_drive_task_hdr *taskfile, struct hd_drive_hob_hdr *hobfile);
/* Expects args is a full set of TF registers and parses the command type */
-int ide_cmd_type_parser (ide_task_t *args);
+extern int ide_cmd_type_parser(ide_task_t *);
-int ide_taskfile_ioctl (ide_drive_t *drive, struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg);
+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
-int pkt_taskfile_ioctl (ide_drive_t *drive, struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg);
+extern int pkt_taskfile_ioctl(ide_drive_t *, struct inode *, struct file *, unsigned int, unsigned long);
#endif /* CONFIG_PKT_TASK_IOCTL */
-void ide_delay_50ms (void);
-int system_bus_clock(void);
+extern void ide_delay_50ms(void);
+extern int system_bus_clock(void);
-byte ide_auto_reduce_xfer (ide_drive_t *drive);
-int ide_driveid_update (ide_drive_t *drive);
-int ide_ata66_check (ide_drive_t *drive, ide_task_t *args);
-int ide_config_drive_speed (ide_drive_t *drive, byte speed);
-byte eighty_ninty_three (ide_drive_t *drive);
-int set_transfer (ide_drive_t *drive, ide_task_t *args);
+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.
*/
-int ide_system_bus_speed (void);
-
-/*
- * ide_multwrite() transfers a block of up to mcount sectors of data
- * to a drive as part of a disk multwrite operation.
- */
-int ide_multwrite (ide_drive_t *drive, unsigned int mcount);
+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.
*/
-void ide_stall_queue (ide_drive_t *drive, unsigned long timeout);
+extern void ide_stall_queue(ide_drive_t *, unsigned long);
/*
* ide_get_queue() returns the queue which corresponds to a given device.
*/
-request_queue_t *ide_get_queue (kdev_t dev);
+extern request_queue_t *ide_get_queue(kdev_t dev);
-/*
- * CompactFlash cards and their brethern pretend to be removable hard disks,
- * but they never have a slave unit, and they don't have doorlock mechanisms.
- * This test catches them, and is invoked elsewhere when setting appropriate config bits.
- */
-int drive_is_flashcard (ide_drive_t *drive);
-
-int ide_spin_wait_hwgroup (ide_drive_t *drive);
-void ide_timer_expiry (unsigned long data);
-void ide_intr (int irq, void *dev_id, struct pt_regs *regs);
-void do_ide_request (request_queue_t * q);
-void ide_init_subdrivers (void);
+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);
-#ifndef _IDE_C
extern struct block_device_operations ide_fops[];
extern ide_proc_entry_t generic_subdriver_entries[];
-#endif
-int ide_reinit_drive (ide_drive_t *drive);
+extern int ide_attach_drive(ide_drive_t *);
-#ifdef _IDE_C
-#ifdef CONFIG_BLK_DEV_IDE
-int ideprobe_init (void);
-#endif /* CONFIG_BLK_DEV_IDE */
-#ifdef CONFIG_BLK_DEV_IDEDISK
-int idedisk_reinit (ide_drive_t *drive);
-int idedisk_init (void);
-#endif /* CONFIG_BLK_DEV_IDEDISK */
-#ifdef CONFIG_BLK_DEV_IDECD
-int ide_cdrom_reinit (ide_drive_t *drive);
-int ide_cdrom_init (void);
-#endif /* CONFIG_BLK_DEV_IDECD */
-#ifdef CONFIG_BLK_DEV_IDETAPE
-int idetape_reinit (ide_drive_t *drive);
-int idetape_init (void);
-#endif /* CONFIG_BLK_DEV_IDETAPE */
-#ifdef CONFIG_BLK_DEV_IDEFLOPPY
-int idefloppy_reinit (ide_drive_t *drive);
-int idefloppy_init (void);
-#endif /* CONFIG_BLK_DEV_IDEFLOPPY */
-#ifdef CONFIG_BLK_DEV_IDESCSI
-int idescsi_reinit (ide_drive_t *drive);
-int idescsi_init (void);
-#endif /* CONFIG_BLK_DEV_IDESCSI */
-#endif /* _IDE_C */
-
-int ide_register_module (ide_module_t *module);
-void ide_unregister_module (ide_module_t *module);
-ide_drive_t *ide_scan_devices (byte media, const char *name, ide_driver_t *driver, int n);
-int ide_register_subdriver (ide_drive_t *drive, ide_driver_t *driver, int version);
-int ide_unregister_subdriver (ide_drive_t *drive);
-int ide_replace_subdriver(ide_drive_t *drive, const char *driver);
+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 */
-#ifdef CONFIG_BLK_DEV_IDEPCI
#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 */
-unsigned long ide_find_free_region (unsigned short size) __init;
-void ide_scan_pcibus (int scan_direction) __init;
-#endif
-#ifdef CONFIG_BLK_DEV_IDEDMA
+#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
-int ide_build_dmatable (ide_drive_t *drive, ide_dma_action_t func);
-void ide_destroy_dmatable (ide_drive_t *drive);
-ide_startstop_t ide_dma_intr (ide_drive_t *drive);
-int check_drive_lists (ide_drive_t *drive, int good_bad);
-int report_drive_dmaing (ide_drive_t *drive);
-int ide_dmaproc (ide_dma_action_t func, ide_drive_t *drive);
-int ide_release_dma (ide_hwif_t *hwif);
-void ide_setup_dma (ide_hwif_t *hwif, unsigned long dmabase, unsigned int num_ports) __init;
-unsigned long ide_get_or_set_dma_base (ide_hwif_t *hwif, int extra, const char *name) __init;
+
+#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 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) {;}
#endif
-void hwif_unregister (ide_hwif_t *hwif);
+extern void hwif_unregister(ide_hwif_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);
+
+#define ide_lock (io_request_lock)
+#define DRIVE_LOCK(drive) ((drive)->queue.queue_lock)
-void export_ide_init_queue (ide_drive_t *drive);
-byte export_probe_for_drive (ide_drive_t *drive);
#endif /* _IDE_H */
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TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)