-diff -purN linux.old/drivers/ide/ide.c.orig linux.dev/drivers/ide/ide.c.orig
---- linux.old/drivers/ide/ide.c.orig 1970-01-01 01:00:00.000000000 +0100
-+++ linux.dev/drivers/ide/ide.c.orig 2007-01-10 20:10:37.000000000 +0100
-@@ -0,0 +1,2099 @@
-+/*
-+ * linux/drivers/ide/ide.c Version 7.00beta2 Mar 05 2003
-+ *
-+ * Copyright (C) 1994-1998 Linus Torvalds & authors (see below)
-+ */
-+
-+/*
-+ * Mostly written by Mark Lord <mlord@pobox.com>
-+ * and Gadi Oxman <gadio@netvision.net.il>
-+ * and Andre Hedrick <andre@linux-ide.org>
-+ *
-+ * See linux/MAINTAINERS for address of current maintainer.
-+ *
-+ * This is the multiple IDE interface driver, as evolved from hd.c.
-+ * It supports up to MAX_HWIFS 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: ide0, port 0x1f0; major=3; hda is minor=0; hdb is minor=64
-+ * Secondary: ide1, port 0x170; major=22; hdc is minor=0; hdd is minor=64
-+ * Tertiary: ide2, port 0x???; major=33; hde is minor=0; hdf is minor=64
-+ * Quaternary: ide3, port 0x???; major=34; hdg is minor=0; hdh is minor=64
-+ * ...
-+ *
-+ * From hd.c:
-+ * |
-+ * | It traverses the request-list, using interrupts to jump between functions.
-+ * | As nearly all functions can be called within interrupts, we may not sleep.
-+ * | Special care is recommended. Have Fun!
-+ * |
-+ * | modified by Drew Eckhardt to check nr of hd's from the CMOS.
-+ * |
-+ * | Thanks to Branko Lankester, lankeste@fwi.uva.nl, who found a bug
-+ * | in the early extended-partition checks and added DM partitions.
-+ * |
-+ * | Early work on error handling by Mika Liljeberg (liljeber@cs.Helsinki.FI).
-+ * |
-+ * | IRQ-unmask, drive-id, multiple-mode, support for ">16 heads",
-+ * | and general streamlining by Mark Lord (mlord@pobox.com).
-+ *
-+ * October, 1994 -- Complete line-by-line overhaul for linux 1.1.x, by:
-+ *
-+ * Mark Lord (mlord@pobox.com) (IDE Perf.Pkg)
-+ * Delman Lee (delman@ieee.org) ("Mr. atdisk2")
-+ * Scott Snyder (snyder@fnald0.fnal.gov) (ATAPI IDE cd-rom)
-+ *
-+ * This was a rewrite of just about everything from hd.c, though some original
-+ * code is still sprinkled about. Think of it as a major evolution, with
-+ * inspiration from lots of linux users, esp. hamish@zot.apana.org.au
-+ *
-+ * Version 1.0 ALPHA initial code, primary i/f working okay
-+ * Version 1.3 BETA dual i/f on shared irq tested & working!
-+ * Version 1.4 BETA added auto probing for irq(s)
-+ * Version 1.5 BETA added ALPHA (untested) support for IDE cd-roms,
-+ * ...
-+ * Version 5.50 allow values as small as 20 for idebus=
-+ * Version 5.51 force non io_32bit in drive_cmd_intr()
-+ * change delay_10ms() to delay_50ms() to fix problems
-+ * Version 5.52 fix incorrect invalidation of removable devices
-+ * add "hdx=slow" command line option
-+ * Version 5.60 start to modularize the driver; the disk and ATAPI
-+ * drivers can be compiled as loadable modules.
-+ * move IDE probe code to ide-probe.c
-+ * move IDE disk code to ide-disk.c
-+ * add support for generic IDE device subdrivers
-+ * add m68k code from Geert Uytterhoeven
-+ * probe all interfaces by default
-+ * add ioctl to (re)probe an interface
-+ * Version 6.00 use per device request queues
-+ * attempt to optimize shared hwgroup performance
-+ * add ioctl to manually adjust bandwidth algorithms
-+ * add kerneld support for the probe module
-+ * fix bug in ide_error()
-+ * fix bug in the first ide_get_lock() call for Atari
-+ * don't flush leftover data for ATAPI devices
-+ * Version 6.01 clear hwgroup->active while the hwgroup sleeps
-+ * support HDIO_GETGEO for floppies
-+ * Version 6.02 fix ide_ack_intr() call
-+ * check partition table on floppies
-+ * Version 6.03 handle bad status bit sequencing in ide_wait_stat()
-+ * Version 6.10 deleted old entries from this list of updates
-+ * replaced triton.c with ide-dma.c generic PCI DMA
-+ * added support for BIOS-enabled UltraDMA
-+ * rename all "promise" things to "pdc4030"
-+ * fix EZ-DRIVE handling on small disks
-+ * Version 6.11 fix probe error in ide_scan_devices()
-+ * fix ancient "jiffies" polling bugs
-+ * mask all hwgroup interrupts on each irq entry
-+ * Version 6.12 integrate ioctl and proc interfaces
-+ * fix parsing of "idex=" command line parameter
-+ * Version 6.13 add support for ide4/ide5 courtesy rjones@orchestream.com
-+ * Version 6.14 fixed IRQ sharing among PCI devices
-+ * Version 6.15 added SMP awareness to IDE drivers
-+ * Version 6.16 fixed various bugs; even more SMP friendly
-+ * Version 6.17 fix for newest EZ-Drive problem
-+ * Version 6.18 default unpartitioned-disk translation now "BIOS LBA"
-+ * Version 6.19 Re-design for a UNIFORM driver for all platforms,
-+ * model based on suggestions from Russell King and
-+ * Geert Uytterhoeven
-+ * Promise DC4030VL now supported.
-+ * add support for ide6/ide7
-+ * delay_50ms() changed to ide_delay_50ms() and exported.
-+ * Version 6.20 Added/Fixed Generic ATA-66 support and hwif detection.
-+ * Added hdx=flash to allow for second flash disk
-+ * detection w/o the hang loop.
-+ * Added support for ide8/ide9
-+ * Added idex=ata66 for the quirky chipsets that are
-+ * ATA-66 compliant, but have yet to determine a method
-+ * of verification of the 80c cable presence.
-+ * Specifically Promise's PDC20262 chipset.
-+ * Version 6.21 Fixing/Fixed SMP spinlock issue with insight from an old
-+ * hat that clarified original low level driver design.
-+ * Version 6.30 Added SMP support; fixed multmode issues. -ml
-+ * Version 6.31 Debug Share INTR's and request queue streaming
-+ * Native ATA-100 support
-+ * Prep for Cascades Project
-+ * Version 7.00alpha First named revision of ide rearrange
-+ *
-+ * Some additional driver compile-time options are in ./include/linux/ide.h
-+ *
-+ * To do, in likely order of completion:
-+ * - modify kernel to obtain BIOS geometry for drives on 2nd/3rd/4th i/f
-+ *
-+ */
-+
-+#define REVISION "Revision: 7.00alpha2"
-+#define VERSION "Id: ide.c 7.00a2 20020906"
-+
-+#undef REALLY_SLOW_IO /* most systems can safely undef this */
-+
-+#define _IDE_C /* Tell ide.h it's really us */
-+
-+#include <linux/module.h>
-+#include <linux/types.h>
-+#include <linux/string.h>
-+#include <linux/kernel.h>
-+#include <linux/timer.h>
-+#include <linux/mm.h>
-+#include <linux/interrupt.h>
-+#include <linux/major.h>
-+#include <linux/errno.h>
-+#include <linux/genhd.h>
-+#include <linux/blkpg.h>
-+#include <linux/slab.h>
-+#include <linux/init.h>
-+#include <linux/pci.h>
-+#include <linux/delay.h>
-+#include <linux/ide.h>
-+#include <linux/completion.h>
-+#include <linux/reboot.h>
-+#include <linux/cdrom.h>
-+#include <linux/seq_file.h>
-+#include <linux/device.h>
-+#include <linux/bitops.h>
-+
-+#include <asm/byteorder.h>
-+#include <asm/irq.h>
-+#include <asm/uaccess.h>
-+#include <asm/io.h>
-+
-+
-+/* default maximum number of failures */
-+#define IDE_DEFAULT_MAX_FAILURES 1
-+
-+static const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR,
-+ IDE2_MAJOR, IDE3_MAJOR,
-+ IDE4_MAJOR, IDE5_MAJOR,
-+ IDE6_MAJOR, IDE7_MAJOR,
-+ IDE8_MAJOR, IDE9_MAJOR };
-+
-+static int idebus_parameter; /* holds the "idebus=" parameter */
-+static int system_bus_speed; /* holds what we think is VESA/PCI bus speed */
-+static int initializing; /* set while initializing built-in drivers */
-+
-+DECLARE_MUTEX(ide_cfg_sem);
-+ __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock);
-+
-+#ifdef CONFIG_BLK_DEV_IDEPCI
-+static int ide_scan_direction; /* THIS was formerly 2.2.x pci=reverse */
-+#endif
-+
-+#ifdef CONFIG_IDEDMA_AUTO
-+int noautodma = 0;
-+#else
-+int noautodma = 1;
-+#endif
-+
-+EXPORT_SYMBOL(noautodma);
-+
-+/*
-+ * This is declared extern in ide.h, for access by other IDE modules:
-+ */
-+ide_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */
-+
-+EXPORT_SYMBOL(ide_hwifs);
-+
-+/*
-+ * Do not even *think* about calling this!
-+ */
-+static void init_hwif_data(ide_hwif_t *hwif, unsigned int index)
-+{
-+ unsigned int unit;
-+
-+ /* bulk initialize hwif & drive info with zeros */
-+ memset(hwif, 0, sizeof(ide_hwif_t));
-+
-+ /* fill in any non-zero initial values */
-+ hwif->index = index;
-+ hwif->major = ide_hwif_to_major[index];
-+
-+ hwif->name[0] = 'i';
-+ hwif->name[1] = 'd';
-+ hwif->name[2] = 'e';
-+ hwif->name[3] = '0' + index;
-+
-+ hwif->bus_state = BUSSTATE_ON;
-+
-+ hwif->atapi_dma = 0; /* disable all atapi dma */
-+ hwif->ultra_mask = 0x80; /* disable all ultra */
-+ hwif->mwdma_mask = 0x80; /* disable all mwdma */
-+ hwif->swdma_mask = 0x80; /* disable all swdma */
-+
-+ init_completion(&hwif->gendev_rel_comp);
-+
-+ default_hwif_iops(hwif);
-+ default_hwif_transport(hwif);
-+ for (unit = 0; unit < MAX_DRIVES; ++unit) {
-+ ide_drive_t *drive = &hwif->drives[unit];
-+
-+ drive->media = ide_disk;
-+ drive->select.all = (unit<<4)|0xa0;
-+ drive->hwif = hwif;
-+ drive->ctl = 0x08;
-+ drive->ready_stat = READY_STAT;
-+ drive->bad_wstat = BAD_W_STAT;
-+ drive->special.b.recalibrate = 1;
-+ drive->special.b.set_geometry = 1;
-+ drive->name[0] = 'h';
-+ drive->name[1] = 'd';
-+ drive->name[2] = 'a' + (index * MAX_DRIVES) + unit;
-+ drive->max_failures = IDE_DEFAULT_MAX_FAILURES;
-+ drive->using_dma = 0;
-+ drive->vdma = 0;
-+ INIT_LIST_HEAD(&drive->list);
-+ init_completion(&drive->gendev_rel_comp);
-+ }
-+}
-+
-+static void init_hwif_default(ide_hwif_t *hwif, unsigned int index)
-+{
-+ hw_regs_t hw;
-+
-+ memset(&hw, 0, sizeof(hw_regs_t));
-+
-+ ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, &hwif->irq);
-+
-+ memcpy(&hwif->hw, &hw, sizeof(hw));
-+ memcpy(hwif->io_ports, hw.io_ports, sizeof(hw.io_ports));
-+
-+ hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET];
-+#ifdef CONFIG_BLK_DEV_HD
-+ if (hwif->io_ports[IDE_DATA_OFFSET] == HD_DATA)
-+ hwif->noprobe = 1; /* may be overridden by ide_setup() */
-+#endif
-+}
-+
-+extern void ide_arm_init(void);
-+
-+/*
-+ * init_ide_data() sets reasonable default values into all fields
-+ * of all instances of the hwifs and drives, but only on the first call.
-+ * Subsequent calls have no effect (they don't wipe out anything).
-+ *
-+ * This routine is normally called at driver initialization time,
-+ * but may also be called MUCH earlier during kernel "command-line"
-+ * parameter processing. As such, we cannot depend on any other parts
-+ * of the kernel (such as memory allocation) to be functioning yet.
-+ *
-+ * This is too bad, as otherwise we could dynamically allocate the
-+ * ide_drive_t structs as needed, rather than always consuming memory
-+ * for the max possible number (MAX_HWIFS * MAX_DRIVES) of them.
-+ *
-+ * FIXME: We should stuff the setup data into __init and copy the
-+ * relevant hwifs/allocate them properly during boot.
-+ */
-+#define MAGIC_COOKIE 0x12345678
-+static void __init init_ide_data (void)
-+{
-+ ide_hwif_t *hwif;
-+ unsigned int index;
-+ static unsigned long magic_cookie = MAGIC_COOKIE;
-+
-+ if (magic_cookie != MAGIC_COOKIE)
-+ return; /* already initialized */
-+ magic_cookie = 0;
-+
-+ /* Initialise all interface structures */
-+ for (index = 0; index < MAX_HWIFS; ++index) {
-+ hwif = &ide_hwifs[index];
-+ init_hwif_data(hwif, index);
-+ init_hwif_default(hwif, index);
-+#if !defined(CONFIG_PPC32) || !defined(CONFIG_PCI)
-+ hwif->irq = hwif->hw.irq =
-+ ide_init_default_irq(hwif->io_ports[IDE_DATA_OFFSET]);
-+#endif
-+ }
-+#ifdef CONFIG_IDE_ARM
-+ initializing = 1;
-+ ide_arm_init();
-+ initializing = 0;
-+#endif
-+}
-+
-+/**
-+ * ide_system_bus_speed - guess bus speed
-+ *
-+ * 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.
-+ * The actual value to be used is computed/displayed the first time
-+ * through. Drivers should only use this as a last resort.
-+ *
-+ * Returns a guessed speed in MHz.
-+ */
-+
-+static int ide_system_bus_speed(void)
-+{
-+#ifdef CONFIG_PCI
-+ static struct pci_device_id pci_default[] = {
-+ { PCI_DEVICE(PCI_ANY_ID, PCI_ANY_ID) },
-+ { }
-+ };
-+#else
-+#define pci_default 0
-+#endif /* CONFIG_PCI */
-+
-+ if (!system_bus_speed) {
-+ if (idebus_parameter) {
-+ /* user supplied value */
-+ system_bus_speed = idebus_parameter;
-+ } else if (pci_dev_present(pci_default)) {
-+ /* safe default value for PCI */
-+ system_bus_speed = 33;
-+ } else {
-+ /* safe default value for VESA and PCI */
-+ system_bus_speed = 50;
-+ }
-+ printk(KERN_INFO "ide: Assuming %dMHz system bus speed "
-+ "for PIO modes%s\n", system_bus_speed,
-+ idebus_parameter ? "" : "; override with idebus=xx");
-+ }
-+ return system_bus_speed;
-+}
-+
-+#ifdef CONFIG_PROC_FS
-+struct proc_dir_entry *proc_ide_root;
-+#endif
-+
-+static struct resource* hwif_request_region(ide_hwif_t *hwif,
-+ unsigned long addr, int num)
-+{
-+ struct resource *res = request_region(addr, num, hwif->name);
-+
-+ if (!res)
-+ printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
-+ hwif->name, addr, addr+num-1);
-+ return res;
-+}
-+
-+/**
-+ * ide_hwif_request_regions - request resources for IDE
-+ * @hwif: interface to use
-+ *
-+ * Requests all the needed resources for an interface.
-+ * Right now core IDE code does this work which is deeply wrong.
-+ * MMIO leaves it to the controller driver,
-+ * PIO will migrate this way over time.
-+ */
-+
-+int ide_hwif_request_regions(ide_hwif_t *hwif)
-+{
-+ unsigned long addr;
-+ unsigned int i;
-+
-+ if (hwif->mmio == 2)
-+ return 0;
-+ BUG_ON(hwif->mmio == 1);
-+ addr = hwif->io_ports[IDE_CONTROL_OFFSET];
-+ if (addr && !hwif_request_region(hwif, addr, 1))
-+ goto control_region_busy;
-+ hwif->straight8 = 0;
-+ addr = hwif->io_ports[IDE_DATA_OFFSET];
-+ if ((addr | 7) == hwif->io_ports[IDE_STATUS_OFFSET]) {
-+ if (!hwif_request_region(hwif, addr, 8))
-+ goto data_region_busy;
-+ hwif->straight8 = 1;
-+ return 0;
-+ }
-+ for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
-+ addr = hwif->io_ports[i];
-+ if (!hwif_request_region(hwif, addr, 1)) {
-+ while (--i)
-+ release_region(addr, 1);
-+ goto data_region_busy;
-+ }
-+ }
-+ return 0;
-+
-+data_region_busy:
-+ addr = hwif->io_ports[IDE_CONTROL_OFFSET];
-+ if (addr)
-+ release_region(addr, 1);
-+control_region_busy:
-+ /* If any errors are return, we drop the hwif interface. */
-+ return -EBUSY;
-+}
-+
-+/**
-+ * ide_hwif_release_regions - free IDE resources
-+ *
-+ * Note that we only release the standard ports,
-+ * and do not even try to handle any extra ports
-+ * allocated for weird IDE interface chipsets.
-+ *
-+ * Note also that we don't yet handle mmio resources here. More
-+ * importantly our caller should be doing this so we need to
-+ * restructure this as a helper function for drivers.
-+ */
-+
-+void ide_hwif_release_regions(ide_hwif_t *hwif)
-+{
-+ u32 i = 0;
-+
-+ if (hwif->mmio == 2)
-+ return;
-+ if (hwif->io_ports[IDE_CONTROL_OFFSET])
-+ release_region(hwif->io_ports[IDE_CONTROL_OFFSET], 1);
-+ if (hwif->straight8) {
-+ release_region(hwif->io_ports[IDE_DATA_OFFSET], 8);
-+ return;
-+ }
-+ for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++)
-+ if (hwif->io_ports[i])
-+ release_region(hwif->io_ports[i], 1);
-+}
-+
-+/**
-+ * ide_hwif_restore - restore hwif to template
-+ * @hwif: hwif to update
-+ * @tmp_hwif: template
-+ *
-+ * Restore hwif to a previous state by copying most settings
-+ * from the template.
-+ */
-+
-+static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
-+{
-+ hwif->hwgroup = tmp_hwif->hwgroup;
-+
-+ hwif->gendev.parent = tmp_hwif->gendev.parent;
-+
-+ hwif->proc = tmp_hwif->proc;
-+
-+ hwif->major = tmp_hwif->major;
-+ hwif->straight8 = tmp_hwif->straight8;
-+ hwif->bus_state = tmp_hwif->bus_state;
-+
-+ hwif->atapi_dma = tmp_hwif->atapi_dma;
-+ hwif->ultra_mask = tmp_hwif->ultra_mask;
-+ hwif->mwdma_mask = tmp_hwif->mwdma_mask;
-+ hwif->swdma_mask = tmp_hwif->swdma_mask;
-+
-+ hwif->chipset = tmp_hwif->chipset;
-+ hwif->hold = tmp_hwif->hold;
-+
-+#ifdef CONFIG_BLK_DEV_IDEPCI
-+ hwif->pci_dev = tmp_hwif->pci_dev;
-+ hwif->cds = tmp_hwif->cds;
-+#endif
-+
-+ hwif->tuneproc = tmp_hwif->tuneproc;
-+ hwif->speedproc = tmp_hwif->speedproc;
-+ hwif->selectproc = tmp_hwif->selectproc;
-+ hwif->reset_poll = tmp_hwif->reset_poll;
-+ hwif->pre_reset = tmp_hwif->pre_reset;
-+ hwif->resetproc = tmp_hwif->resetproc;
-+ hwif->intrproc = tmp_hwif->intrproc;
-+ hwif->maskproc = tmp_hwif->maskproc;
-+ hwif->quirkproc = tmp_hwif->quirkproc;
-+ hwif->busproc = tmp_hwif->busproc;
-+
-+ hwif->ata_input_data = tmp_hwif->ata_input_data;
-+ hwif->ata_output_data = tmp_hwif->ata_output_data;
-+ hwif->atapi_input_bytes = tmp_hwif->atapi_input_bytes;
-+ hwif->atapi_output_bytes = tmp_hwif->atapi_output_bytes;
-+
-+ hwif->dma_setup = tmp_hwif->dma_setup;
-+ hwif->dma_exec_cmd = tmp_hwif->dma_exec_cmd;
-+ hwif->dma_start = tmp_hwif->dma_start;
-+ hwif->ide_dma_end = tmp_hwif->ide_dma_end;
-+ hwif->ide_dma_check = tmp_hwif->ide_dma_check;
-+ hwif->ide_dma_on = tmp_hwif->ide_dma_on;
-+ hwif->ide_dma_off_quietly = tmp_hwif->ide_dma_off_quietly;
-+ hwif->ide_dma_test_irq = tmp_hwif->ide_dma_test_irq;
-+ hwif->ide_dma_host_on = tmp_hwif->ide_dma_host_on;
-+ hwif->ide_dma_host_off = tmp_hwif->ide_dma_host_off;
-+ hwif->ide_dma_lostirq = tmp_hwif->ide_dma_lostirq;
-+ hwif->ide_dma_timeout = tmp_hwif->ide_dma_timeout;
-+
-+ hwif->OUTB = tmp_hwif->OUTB;
-+ hwif->OUTBSYNC = tmp_hwif->OUTBSYNC;
-+ hwif->OUTW = tmp_hwif->OUTW;
-+ hwif->OUTL = tmp_hwif->OUTL;
-+ hwif->OUTSW = tmp_hwif->OUTSW;
-+ hwif->OUTSL = tmp_hwif->OUTSL;
-+
-+ hwif->INB = tmp_hwif->INB;
-+ hwif->INW = tmp_hwif->INW;
-+ hwif->INL = tmp_hwif->INL;
-+ hwif->INSW = tmp_hwif->INSW;
-+ hwif->INSL = tmp_hwif->INSL;
-+
-+ hwif->sg_max_nents = tmp_hwif->sg_max_nents;
-+
-+ hwif->mmio = tmp_hwif->mmio;
-+ hwif->rqsize = tmp_hwif->rqsize;
-+ hwif->no_lba48 = tmp_hwif->no_lba48;
-+
-+#ifndef CONFIG_BLK_DEV_IDECS
-+ hwif->irq = tmp_hwif->irq;
-+#endif
-+
-+ hwif->dma_base = tmp_hwif->dma_base;
-+ hwif->dma_master = tmp_hwif->dma_master;
-+ hwif->dma_command = tmp_hwif->dma_command;
-+ hwif->dma_vendor1 = tmp_hwif->dma_vendor1;
-+ hwif->dma_status = tmp_hwif->dma_status;
-+ hwif->dma_vendor3 = tmp_hwif->dma_vendor3;
-+ hwif->dma_prdtable = tmp_hwif->dma_prdtable;
-+
-+ hwif->config_data = tmp_hwif->config_data;
-+ hwif->select_data = tmp_hwif->select_data;
-+ hwif->extra_base = tmp_hwif->extra_base;
-+ hwif->extra_ports = tmp_hwif->extra_ports;
-+ hwif->autodma = tmp_hwif->autodma;
-+ hwif->udma_four = tmp_hwif->udma_four;
-+ hwif->no_dsc = tmp_hwif->no_dsc;
-+
-+ hwif->hwif_data = tmp_hwif->hwif_data;
-+}
-+
-+/**
-+ * ide_unregister - free an IDE interface
-+ * @index: index of interface (will change soon to a pointer)
-+ *
-+ * Perform the final unregister of an IDE interface. At the moment
-+ * we don't refcount interfaces so this will also get split up.
-+ *
-+ * Locking:
-+ * The caller must not hold the IDE locks
-+ * The drive present/vanishing is not yet properly locked
-+ * Take care with the callbacks. These have been split to avoid
-+ * deadlocking the IDE layer. The shutdown callback is called
-+ * before we take the lock and free resources. It is up to the
-+ * caller to be sure there is no pending I/O here, and that
-+ * the interface will not be reopened (present/vanishing locking
-+ * isn't yet done BTW). After we commit to the final kill we
-+ * call the cleanup callback with the ide locks held.
-+ *
-+ * Unregister restores the hwif structures to the default state.
-+ * This is raving bonkers.
-+ */
-+
-+void ide_unregister(unsigned int index)
-+{
-+ ide_drive_t *drive;
-+ ide_hwif_t *hwif, *g;
-+ static ide_hwif_t tmp_hwif; /* protected by ide_cfg_sem */
-+ ide_hwgroup_t *hwgroup;
-+ int irq_count = 0, unit;
-+
-+ BUG_ON(index >= MAX_HWIFS);
-+
-+ BUG_ON(in_interrupt());
-+ BUG_ON(irqs_disabled());
-+ down(&ide_cfg_sem);
-+ spin_lock_irq(&ide_lock);
-+ hwif = &ide_hwifs[index];
-+ if (!hwif->present)
-+ goto abort;
-+ for (unit = 0; unit < MAX_DRIVES; ++unit) {
-+ drive = &hwif->drives[unit];
-+ if (!drive->present)
-+ continue;
-+ spin_unlock_irq(&ide_lock);
-+ device_unregister(&drive->gendev);
-+ wait_for_completion(&drive->gendev_rel_comp);
-+ spin_lock_irq(&ide_lock);
-+ }
-+ hwif->present = 0;
-+
-+ spin_unlock_irq(&ide_lock);
-+
-+ destroy_proc_ide_interface(hwif);
-+
-+ hwgroup = hwif->hwgroup;
-+ /*
-+ * free the irq if we were the only hwif using it
-+ */
-+ g = hwgroup->hwif;
-+ do {
-+ if (g->irq == hwif->irq)
-+ ++irq_count;
-+ g = g->next;
-+ } while (g != hwgroup->hwif);
-+ if (irq_count == 1)
-+ free_irq(hwif->irq, hwgroup);
-+
-+ spin_lock_irq(&ide_lock);
-+ /*
-+ * Note that we only release the standard ports,
-+ * and do not even try to handle any extra ports
-+ * allocated for weird IDE interface chipsets.
-+ */
-+ ide_hwif_release_regions(hwif);
-+
-+ /*
-+ * Remove us from the hwgroup, and free
-+ * the hwgroup if we were the only member
-+ */
-+ if (hwif->next == hwif) {
-+ BUG_ON(hwgroup->hwif != hwif);
-+ kfree(hwgroup);
-+ } else {
-+ /* There is another interface in hwgroup.
-+ * Unlink us, and set hwgroup->drive and ->hwif to
-+ * something sane.
-+ */
-+ g = hwgroup->hwif;
-+ while (g->next != hwif)
-+ g = g->next;
-+ g->next = hwif->next;
-+ if (hwgroup->hwif == hwif) {
-+ /* Chose a random hwif for hwgroup->hwif.
-+ * It's guaranteed that there are no drives
-+ * left in the hwgroup.
-+ */
-+ BUG_ON(hwgroup->drive != NULL);
-+ hwgroup->hwif = g;
-+ }
-+ BUG_ON(hwgroup->hwif == hwif);
-+ }
-+
-+ /* More messed up locking ... */
-+ spin_unlock_irq(&ide_lock);
-+ device_unregister(&hwif->gendev);
-+ wait_for_completion(&hwif->gendev_rel_comp);
-+
-+ /*
-+ * Remove us from the kernel's knowledge
-+ */
-+ blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<<PARTN_BITS);
-+ kfree(hwif->sg_table);
-+ unregister_blkdev(hwif->major, hwif->name);
-+ spin_lock_irq(&ide_lock);
-+
-+ if (hwif->dma_base) {
-+ (void) ide_release_dma(hwif);
-+
-+ hwif->dma_base = 0;
-+ hwif->dma_master = 0;
-+ hwif->dma_command = 0;
-+ hwif->dma_vendor1 = 0;
-+ hwif->dma_status = 0;
-+ hwif->dma_vendor3 = 0;
-+ hwif->dma_prdtable = 0;
-+
-+ hwif->extra_base = 0;
-+ hwif->extra_ports = 0;
-+ }
-+
-+ /* copy original settings */
-+ tmp_hwif = *hwif;
-+
-+ /* restore hwif data to pristine status */
-+ init_hwif_data(hwif, index);
-+ init_hwif_default(hwif, index);
-+
-+ ide_hwif_restore(hwif, &tmp_hwif);
-+
-+abort:
-+ spin_unlock_irq(&ide_lock);
-+ up(&ide_cfg_sem);
-+}
-+
-+EXPORT_SYMBOL(ide_unregister);
-+
-+
-+/**
-+ * ide_setup_ports - set up IDE interface ports
-+ * @hw: register descriptions
-+ * @base: base register
-+ * @offsets: table of register offsets
-+ * @ctrl: control register
-+ * @ack_irq: IRQ ack
-+ * @irq: interrupt lie
-+ *
-+ * Setup hw_regs_t structure described by parameters. You
-+ * may set up the hw structure yourself OR use this routine to
-+ * do it for you. This is basically a helper
-+ *
-+ */
-+
-+void ide_setup_ports ( hw_regs_t *hw,
-+ unsigned long base, int *offsets,
-+ unsigned long ctrl, unsigned long intr,
-+ ide_ack_intr_t *ack_intr,
-+/*
-+ * ide_io_ops_t *iops,
-+ */
-+ int irq)
-+{
-+ int i;
-+
-+ memset(hw, 0, sizeof(hw_regs_t));
-+ for (i = 0; i < IDE_NR_PORTS; i++) {
-+ if (offsets[i] == -1) {
-+ switch(i) {
-+ case IDE_CONTROL_OFFSET:
-+ hw->io_ports[i] = ctrl;
-+ break;
-+#if defined(CONFIG_AMIGA) || defined(CONFIG_MAC)
-+ case IDE_IRQ_OFFSET:
-+ hw->io_ports[i] = intr;
-+ break;
-+#endif /* (CONFIG_AMIGA) || (CONFIG_MAC) */
-+ default:
-+ hw->io_ports[i] = 0;
-+ break;
-+ }
-+ } else {
-+ hw->io_ports[i] = base + offsets[i];
-+ }
-+ }
-+ hw->irq = irq;
-+ hw->dma = NO_DMA;
-+ hw->ack_intr = ack_intr;
-+/*
-+ * hw->iops = iops;
-+ */
-+}
-+
-+/**
-+ * ide_register_hw_with_fixup - register IDE interface
-+ * @hw: hardware registers
-+ * @hwifp: pointer to returned hwif
-+ * @fixup: fixup function
-+ *
-+ * Register an IDE interface, specifying exactly the registers etc.
-+ * Set init=1 iff calling before probes have taken place.
-+ *
-+ * Returns -1 on error.
-+ */
-+
-+int ide_register_hw_with_fixup(hw_regs_t *hw, ide_hwif_t **hwifp, void(*fixup)(ide_hwif_t *hwif))
-+{
-+ int index, retry = 1;
-+ ide_hwif_t *hwif;
-+
-+ do {
-+ for (index = 0; index < MAX_HWIFS; ++index) {
-+ hwif = &ide_hwifs[index];
-+ if (hwif->hw.io_ports[IDE_DATA_OFFSET] == hw->io_ports[IDE_DATA_OFFSET])
-+ goto found;
-+ }
-+ for (index = 0; index < MAX_HWIFS; ++index) {
-+ hwif = &ide_hwifs[index];
-+ if (hwif->hold)
-+ continue;
-+ if ((!hwif->present && !hwif->mate && !initializing) ||
-+ (!hwif->hw.io_ports[IDE_DATA_OFFSET] && initializing))
-+ goto found;
-+ }
-+ for (index = 0; index < MAX_HWIFS; index++)
-+ ide_unregister(index);
-+ } while (retry--);
-+ return -1;
-+found:
-+ if (hwif->present)
-+ ide_unregister(index);
-+ else if (!hwif->hold) {
-+ init_hwif_data(hwif, index);
-+ init_hwif_default(hwif, index);
-+ }
-+ if (hwif->present)
-+ return -1;
-+ memcpy(&hwif->hw, hw, sizeof(*hw));
-+ memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports));
-+ hwif->irq = hw->irq;
-+ hwif->noprobe = 0;
-+ hwif->chipset = hw->chipset;
-+ hwif->gendev.parent = hw->dev;
-+
-+ if (!initializing) {
-+ probe_hwif_init_with_fixup(hwif, fixup);
-+ create_proc_ide_interfaces();
-+ }
-+
-+ if (hwifp)
-+ *hwifp = hwif;
-+
-+ return (initializing || hwif->present) ? index : -1;
-+}
-+
-+EXPORT_SYMBOL(ide_register_hw_with_fixup);
-+
-+int ide_register_hw(hw_regs_t *hw, ide_hwif_t **hwifp)
-+{
-+ return ide_register_hw_with_fixup(hw, hwifp, NULL);
-+}
-+
-+EXPORT_SYMBOL(ide_register_hw);
-+
-+/*
-+ * Locks for IDE setting functionality
-+ */
-+
-+DECLARE_MUTEX(ide_setting_sem);
-+
-+/**
-+ * __ide_add_setting - add an ide setting option
-+ * @drive: drive to use
-+ * @name: setting name
-+ * @rw: true if the function is read write
-+ * @read_ioctl: function to call on read
-+ * @write_ioctl: function to call on write
-+ * @data_type: type of data
-+ * @min: range minimum
-+ * @max: range maximum
-+ * @mul_factor: multiplication scale
-+ * @div_factor: divison scale
-+ * @data: private data field
-+ * @set: setting
-+ * @auto_remove: setting auto removal flag
-+ *
-+ * Removes the setting named from the device if it is present.
-+ * The function takes the settings_lock to protect against
-+ * parallel changes. This function must not be called from IRQ
-+ * context. Returns 0 on success or -1 on failure.
-+ *
-+ * BUGS: This code is seriously over-engineered. There is also
-+ * magic about how the driver specific features are setup. If
-+ * a driver is attached we assume the driver settings are auto
-+ * remove.
-+ */
-+
-+static 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, int auto_remove)
-+{
-+ ide_settings_t **p = (ide_settings_t **) &drive->settings, *setting = NULL;
-+
-+ down(&ide_setting_sem);
-+ while ((*p) && strcmp((*p)->name, name) < 0)
-+ p = &((*p)->next);
-+ if ((setting = kzalloc(sizeof(*setting), GFP_KERNEL)) == NULL)
-+ goto abort;
-+ if ((setting->name = kmalloc(strlen(name) + 1, GFP_KERNEL)) == NULL)
-+ goto abort;
-+ strcpy(setting->name, name);
-+ setting->rw = rw;
-+ setting->read_ioctl = read_ioctl;
-+ setting->write_ioctl = write_ioctl;
-+ setting->data_type = data_type;
-+ setting->min = min;
-+ setting->max = max;
-+ setting->mul_factor = mul_factor;
-+ setting->div_factor = div_factor;
-+ setting->data = data;
-+ setting->set = set;
-+
-+ setting->next = *p;
-+ if (auto_remove)
-+ setting->auto_remove = 1;
-+ *p = setting;
-+ up(&ide_setting_sem);
-+ return 0;
-+abort:
-+ up(&ide_setting_sem);
-+ kfree(setting);
-+ return -1;
-+}
-+
-+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)
-+{
-+ return __ide_add_setting(drive, name, rw, read_ioctl, write_ioctl, data_type, min, max, mul_factor, div_factor, data, set, 1);
-+}
-+
-+EXPORT_SYMBOL(ide_add_setting);
-+
-+/**
-+ * __ide_remove_setting - remove an ide setting option
-+ * @drive: drive to use
-+ * @name: setting name
-+ *
-+ * Removes the setting named from the device if it is present.
-+ * The caller must hold the setting semaphore.
-+ */
-+
-+static void __ide_remove_setting (ide_drive_t *drive, char *name)
-+{
-+ ide_settings_t **p, *setting;
-+
-+ p = (ide_settings_t **) &drive->settings;
-+
-+ while ((*p) && strcmp((*p)->name, name))
-+ p = &((*p)->next);
-+ if ((setting = (*p)) == NULL)
-+ return;
-+
-+ (*p) = setting->next;
-+
-+ kfree(setting->name);
-+ kfree(setting);
-+}
-+
-+/**
-+ * ide_find_setting_by_ioctl - find a drive specific ioctl
-+ * @drive: drive to scan
-+ * @cmd: ioctl command to handle
-+ *
-+ * Scan's the device setting table for a matching entry and returns
-+ * this or NULL if no entry is found. The caller must hold the
-+ * setting semaphore
-+ */
-+
-+static ide_settings_t *ide_find_setting_by_ioctl (ide_drive_t *drive, int cmd)
-+{
-+ ide_settings_t *setting = drive->settings;
-+
-+ while (setting) {
-+ if (setting->read_ioctl == cmd || setting->write_ioctl == cmd)
-+ break;
-+ setting = setting->next;
-+ }
-+
-+ return setting;
-+}
-+
-+/**
-+ * ide_find_setting_by_name - find a drive specific setting
-+ * @drive: drive to scan
-+ * @name: setting name
-+ *
-+ * Scan's the device setting table for a matching entry and returns
-+ * this or NULL if no entry is found. The caller must hold the
-+ * setting semaphore
-+ */
-+
-+ide_settings_t *ide_find_setting_by_name (ide_drive_t *drive, char *name)
-+{
-+ ide_settings_t *setting = drive->settings;
-+
-+ while (setting) {
-+ if (strcmp(setting->name, name) == 0)
-+ break;
-+ setting = setting->next;
-+ }
-+ return setting;
-+}
-+
-+/**
-+ * auto_remove_settings - remove driver specific settings
-+ * @drive: drive
-+ *
-+ * Automatically remove all the driver specific settings for this
-+ * drive. This function may sleep and must not be called from IRQ
-+ * context. The caller must hold ide_setting_sem.
-+ */
-+
-+static void auto_remove_settings (ide_drive_t *drive)
-+{
-+ ide_settings_t *setting;
-+repeat:
-+ setting = drive->settings;
-+ while (setting) {
-+ if (setting->auto_remove) {
-+ __ide_remove_setting(drive, setting->name);
-+ goto repeat;
-+ }
-+ setting = setting->next;
-+ }
-+}
-+
-+/**
-+ * ide_read_setting - read an IDE setting
-+ * @drive: drive to read from
-+ * @setting: drive setting
-+ *
-+ * Read a drive setting and return the value. The caller
-+ * must hold the ide_setting_sem when making this call.
-+ *
-+ * BUGS: the data return and error are the same return value
-+ * so an error -EINVAL and true return of the same value cannot
-+ * be told apart
-+ */
-+
-+int ide_read_setting (ide_drive_t *drive, ide_settings_t *setting)
-+{
-+ int val = -EINVAL;
-+ unsigned long flags;
-+
-+ if ((setting->rw & SETTING_READ)) {
-+ spin_lock_irqsave(&ide_lock, flags);
-+ switch(setting->data_type) {
-+ case TYPE_BYTE:
-+ val = *((u8 *) setting->data);
-+ break;
-+ case TYPE_SHORT:
-+ val = *((u16 *) setting->data);
-+ break;
-+ case TYPE_INT:
-+ case TYPE_INTA:
-+ val = *((u32 *) setting->data);
-+ break;
-+ }
-+ spin_unlock_irqrestore(&ide_lock, flags);
-+ }
-+ return val;
-+}
-+
-+/**
-+ * ide_spin_wait_hwgroup - wait for group
-+ * @drive: drive in the group
-+ *
-+ * Wait for an IDE device group to go non busy and then return
-+ * holding the ide_lock which guards the hwgroup->busy status
-+ * and right to use it.
-+ */
-+
-+int ide_spin_wait_hwgroup (ide_drive_t *drive)
-+{
-+ ide_hwgroup_t *hwgroup = HWGROUP(drive);
-+ unsigned long timeout = jiffies + (3 * HZ);
-+
-+ spin_lock_irq(&ide_lock);
-+
-+ while (hwgroup->busy) {
-+ unsigned long lflags;
-+ spin_unlock_irq(&ide_lock);
-+ local_irq_set(lflags);
-+ if (time_after(jiffies, timeout)) {
-+ local_irq_restore(lflags);
-+ printk(KERN_ERR "%s: channel busy\n", drive->name);
-+ return -EBUSY;
-+ }
-+ local_irq_restore(lflags);
-+ spin_lock_irq(&ide_lock);
-+ }
-+ return 0;
-+}
-+
-+EXPORT_SYMBOL(ide_spin_wait_hwgroup);
-+
-+/**
-+ * ide_write_setting - read an IDE setting
-+ * @drive: drive to read from
-+ * @setting: drive setting
-+ * @val: value
-+ *
-+ * Write a drive setting if it is possible. The caller
-+ * must hold the ide_setting_sem when making this call.
-+ *
-+ * BUGS: the data return and error are the same return value
-+ * so an error -EINVAL and true return of the same value cannot
-+ * be told apart
-+ *
-+ * FIXME: This should be changed to enqueue a special request
-+ * to the driver to change settings, and then wait on a sema for completion.
-+ * The current scheme of polling is kludgy, though safe enough.
-+ */
-+
-+int ide_write_setting (ide_drive_t *drive, ide_settings_t *setting, int val)
-+{
-+ int i;
-+ u32 *p;
-+
-+ if (!capable(CAP_SYS_ADMIN))
-+ return -EACCES;
-+ if (!(setting->rw & SETTING_WRITE))
-+ return -EPERM;
-+ if (val < setting->min || val > setting->max)
-+ return -EINVAL;
-+ if (setting->set)
-+ return setting->set(drive, val);
-+ if (ide_spin_wait_hwgroup(drive))
-+ return -EBUSY;
-+ switch (setting->data_type) {
-+ case TYPE_BYTE:
-+ *((u8 *) setting->data) = val;
-+ break;
-+ case TYPE_SHORT:
-+ *((u16 *) setting->data) = val;
-+ break;
-+ case TYPE_INT:
-+ *((u32 *) setting->data) = val;
-+ break;
-+ case TYPE_INTA:
-+ p = (u32 *) setting->data;
-+ for (i = 0; i < 1 << PARTN_BITS; i++, p++)
-+ *p = val;
-+ break;
-+ }
-+ spin_unlock_irq(&ide_lock);
-+ return 0;
-+}
-+
-+static int set_io_32bit(ide_drive_t *drive, int arg)
-+{
-+ drive->io_32bit = arg;
-+#ifdef CONFIG_BLK_DEV_DTC2278
-+ if (HWIF(drive)->chipset == ide_dtc2278)
-+ HWIF(drive)->drives[!drive->select.b.unit].io_32bit = arg;
-+#endif /* CONFIG_BLK_DEV_DTC2278 */
-+ return 0;
-+}
-+
-+static int set_using_dma (ide_drive_t *drive, int arg)
-+{
-+#ifdef CONFIG_BLK_DEV_IDEDMA
-+ if (!drive->id || !(drive->id->capability & 1))
-+ return -EPERM;
-+ if (HWIF(drive)->ide_dma_check == NULL)
-+ return -EPERM;
-+ if (arg) {
-+ if (HWIF(drive)->ide_dma_check(drive)) return -EIO;
-+ if (HWIF(drive)->ide_dma_on(drive)) return -EIO;
-+ } else {
-+ if (__ide_dma_off(drive))
-+ return -EIO;
-+ }
-+ return 0;
-+#else
-+ return -EPERM;
-+#endif
-+}
-+
-+static int set_pio_mode (ide_drive_t *drive, int arg)
-+{
-+ struct request rq;
-+
-+ if (!HWIF(drive)->tuneproc)
-+ return -ENOSYS;
-+ if (drive->special.b.set_tune)
-+ return -EBUSY;
-+ ide_init_drive_cmd(&rq);
-+ drive->tune_req = (u8) arg;
-+ drive->special.b.set_tune = 1;
-+ (void) ide_do_drive_cmd(drive, &rq, ide_wait);
-+ return 0;
-+}
-+
-+static int set_xfer_rate (ide_drive_t *drive, int arg)
-+{
-+ int err = ide_wait_cmd(drive,
-+ WIN_SETFEATURES, (u8) arg,
-+ SETFEATURES_XFER, 0, NULL);
-+
-+ if (!err && arg) {
-+ ide_set_xfer_rate(drive, (u8) arg);
-+ ide_driveid_update(drive);
-+ }
-+ return err;
-+}
-+
-+/**
-+ * ide_add_generic_settings - generic ide settings
-+ * @drive: drive being configured
-+ *
-+ * Add the generic parts of the system settings to the /proc files and
-+ * ioctls for this IDE device. The caller must not be holding the
-+ * ide_setting_sem.
-+ */
-+
-+void ide_add_generic_settings (ide_drive_t *drive)
-+{
-+/*
-+ * drive setting name read/write access read ioctl write ioctl data type min max mul_factor div_factor data pointer set function
-+ */
-+ __ide_add_setting(drive, "io_32bit", drive->no_io_32bit ? SETTING_READ : SETTING_RW, HDIO_GET_32BIT, HDIO_SET_32BIT, TYPE_BYTE, 0, 1 + (SUPPORT_VLB_SYNC << 1), 1, 1, &drive->io_32bit, set_io_32bit, 0);
-+ __ide_add_setting(drive, "keepsettings", SETTING_RW, HDIO_GET_KEEPSETTINGS, HDIO_SET_KEEPSETTINGS, TYPE_BYTE, 0, 1, 1, 1, &drive->keep_settings, NULL, 0);
-+ __ide_add_setting(drive, "nice1", SETTING_RW, -1, -1, TYPE_BYTE, 0, 1, 1, 1, &drive->nice1, NULL, 0);
-+ __ide_add_setting(drive, "pio_mode", SETTING_WRITE, -1, HDIO_SET_PIO_MODE, TYPE_BYTE, 0, 255, 1, 1, NULL, set_pio_mode, 0);
-+ __ide_add_setting(drive, "unmaskirq", drive->no_unmask ? SETTING_READ : SETTING_RW, HDIO_GET_UNMASKINTR, HDIO_SET_UNMASKINTR, TYPE_BYTE, 0, 1, 1, 1, &drive->unmask, NULL, 0);
-+ __ide_add_setting(drive, "using_dma", SETTING_RW, HDIO_GET_DMA, HDIO_SET_DMA, TYPE_BYTE, 0, 1, 1, 1, &drive->using_dma, set_using_dma, 0);
-+ __ide_add_setting(drive, "init_speed", SETTING_RW, -1, -1, TYPE_BYTE, 0, 70, 1, 1, &drive->init_speed, NULL, 0);
-+ __ide_add_setting(drive, "current_speed", SETTING_RW, -1, -1, TYPE_BYTE, 0, 70, 1, 1, &drive->current_speed, set_xfer_rate, 0);
-+ __ide_add_setting(drive, "number", SETTING_RW, -1, -1, TYPE_BYTE, 0, 3, 1, 1, &drive->dn, NULL, 0);
-+}
-+
-+/**
-+ * system_bus_clock - clock guess
-+ *
-+ * External version of the bus clock guess used by very old IDE drivers
-+ * for things like VLB timings. Should not be used.
-+ */
-+
-+int system_bus_clock (void)
-+{
-+ return((int) ((!system_bus_speed) ? ide_system_bus_speed() : system_bus_speed ));
-+}
-+
-+EXPORT_SYMBOL(system_bus_clock);
-+
-+static int generic_ide_suspend(struct device *dev, pm_message_t mesg)
-+{
-+ ide_drive_t *drive = dev->driver_data;
-+ struct request rq;
-+ struct request_pm_state rqpm;
-+ ide_task_t args;
-+
-+ memset(&rq, 0, sizeof(rq));
-+ memset(&rqpm, 0, sizeof(rqpm));
-+ memset(&args, 0, sizeof(args));
-+ rq.cmd_type = REQ_TYPE_PM_SUSPEND;
-+ rq.special = &args;
-+ rq.data = &rqpm;
-+ rqpm.pm_step = ide_pm_state_start_suspend;
-+ if (mesg.event == PM_EVENT_PRETHAW)
-+ mesg.event = PM_EVENT_FREEZE;
-+ rqpm.pm_state = mesg.event;
-+
-+ return ide_do_drive_cmd(drive, &rq, ide_wait);
-+}
-+
-+static int generic_ide_resume(struct device *dev)
-+{
-+ ide_drive_t *drive = dev->driver_data;
-+ struct request rq;
-+ struct request_pm_state rqpm;
-+ ide_task_t args;
-+
-+ memset(&rq, 0, sizeof(rq));
-+ memset(&rqpm, 0, sizeof(rqpm));
-+ memset(&args, 0, sizeof(args));
-+ rq.cmd_type = REQ_TYPE_PM_RESUME;
-+ rq.special = &args;
-+ rq.data = &rqpm;
-+ rqpm.pm_step = ide_pm_state_start_resume;
-+ rqpm.pm_state = PM_EVENT_ON;
-+
-+ return ide_do_drive_cmd(drive, &rq, ide_head_wait);
-+}
-+
-+int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device *bdev,
-+ unsigned int cmd, unsigned long arg)
-+{
-+ ide_settings_t *setting;
-+ ide_driver_t *drv;
-+ int err = 0;
-+ void __user *p = (void __user *)arg;
-+
-+ down(&ide_setting_sem);
-+ if ((setting = ide_find_setting_by_ioctl(drive, cmd)) != NULL) {
-+ if (cmd == setting->read_ioctl) {
-+ err = ide_read_setting(drive, setting);
-+ up(&ide_setting_sem);
-+ return err >= 0 ? put_user(err, (long __user *)arg) : err;
-+ } else {
-+ if (bdev != bdev->bd_contains)
-+ err = -EINVAL;
-+ else
-+ err = ide_write_setting(drive, setting, arg);
-+ up(&ide_setting_sem);
-+ return err;
-+ }
-+ }
-+ up(&ide_setting_sem);
-+
-+ switch (cmd) {
-+ case HDIO_OBSOLETE_IDENTITY:
-+ case HDIO_GET_IDENTITY:
-+ if (bdev != bdev->bd_contains)
-+ return -EINVAL;
-+ if (drive->id_read == 0)
-+ return -ENOMSG;
-+ if (copy_to_user(p, drive->id, (cmd == HDIO_GET_IDENTITY) ? sizeof(*drive->id) : 142))
-+ return -EFAULT;
-+ return 0;
-+
-+ case HDIO_GET_NICE:
-+ return put_user(drive->dsc_overlap << IDE_NICE_DSC_OVERLAP |
-+ drive->atapi_overlap << IDE_NICE_ATAPI_OVERLAP |
-+ drive->nice0 << IDE_NICE_0 |
-+ drive->nice1 << IDE_NICE_1 |
-+ drive->nice2 << IDE_NICE_2,
-+ (long __user *) arg);
-+
-+#ifdef CONFIG_IDE_TASK_IOCTL
-+ case HDIO_DRIVE_TASKFILE:
-+ if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
-+ return -EACCES;
-+ switch(drive->media) {
-+ case ide_disk:
-+ return ide_taskfile_ioctl(drive, cmd, arg);
-+ default:
-+ return -ENOMSG;
-+ }
-+#endif /* CONFIG_IDE_TASK_IOCTL */
-+
-+ case HDIO_DRIVE_CMD:
-+ if (!capable(CAP_SYS_RAWIO))
-+ return -EACCES;
-+ return ide_cmd_ioctl(drive, cmd, arg);
-+
-+ case HDIO_DRIVE_TASK:
-+ if (!capable(CAP_SYS_RAWIO))
-+ return -EACCES;
-+ return ide_task_ioctl(drive, cmd, arg);
-+
-+ case HDIO_SCAN_HWIF:
-+ {
-+ hw_regs_t hw;
-+ int args[3];
-+ if (!capable(CAP_SYS_RAWIO)) return -EACCES;
-+ if (copy_from_user(args, p, 3 * sizeof(int)))
-+ return -EFAULT;
-+ memset(&hw, 0, sizeof(hw));
-+ ide_init_hwif_ports(&hw, (unsigned long) args[0],
-+ (unsigned long) args[1], NULL);
-+ hw.irq = args[2];
-+ if (ide_register_hw(&hw, NULL) == -1)
-+ return -EIO;
-+ return 0;
-+ }
-+ case HDIO_UNREGISTER_HWIF:
-+ if (!capable(CAP_SYS_RAWIO)) return -EACCES;
-+ /* (arg > MAX_HWIFS) checked in function */
-+ ide_unregister(arg);
-+ return 0;
-+ case HDIO_SET_NICE:
-+ if (!capable(CAP_SYS_ADMIN)) return -EACCES;
-+ if (arg != (arg & ((1 << IDE_NICE_DSC_OVERLAP) | (1 << IDE_NICE_1))))
-+ return -EPERM;
-+ drive->dsc_overlap = (arg >> IDE_NICE_DSC_OVERLAP) & 1;
-+ drv = *(ide_driver_t **)bdev->bd_disk->private_data;
-+ if (drive->dsc_overlap && !drv->supports_dsc_overlap) {
-+ drive->dsc_overlap = 0;
-+ return -EPERM;
-+ }
-+ drive->nice1 = (arg >> IDE_NICE_1) & 1;
-+ return 0;
-+ case HDIO_DRIVE_RESET:
-+ {
-+ unsigned long flags;
-+ if (!capable(CAP_SYS_ADMIN)) return -EACCES;
-+
-+ /*
-+ * Abort the current command on the
-+ * group if there is one, taking
-+ * care not to allow anything else
-+ * to be queued and to die on the
-+ * spot if we miss one somehow
-+ */
-+
-+ spin_lock_irqsave(&ide_lock, flags);
-+
-+ if (HWGROUP(drive)->resetting) {
-+ spin_unlock_irqrestore(&ide_lock, flags);
-+ return -EBUSY;
-+ }
-+
-+ ide_abort(drive, "drive reset");
-+
-+ BUG_ON(HWGROUP(drive)->handler);
-+
-+ /* Ensure nothing gets queued after we
-+ drop the lock. Reset will clear the busy */
-+
-+ HWGROUP(drive)->busy = 1;
-+ spin_unlock_irqrestore(&ide_lock, flags);
-+ (void) ide_do_reset(drive);
-+
-+ return 0;
-+ }
-+
-+ case CDROMEJECT:
-+ case CDROMCLOSETRAY:
-+ return scsi_cmd_ioctl(file, bdev->bd_disk, cmd, p);
-+
-+ case HDIO_GET_BUSSTATE:
-+ if (!capable(CAP_SYS_ADMIN))
-+ return -EACCES;
-+ if (put_user(HWIF(drive)->bus_state, (long __user *)arg))
-+ return -EFAULT;
-+ return 0;
-+
-+ case HDIO_SET_BUSSTATE:
-+ if (!capable(CAP_SYS_ADMIN))
-+ return -EACCES;
-+ if (HWIF(drive)->busproc)
-+ return HWIF(drive)->busproc(drive, (int)arg);
-+ return -EOPNOTSUPP;
-+ default:
-+ return -EINVAL;
-+ }
-+}
-+
-+EXPORT_SYMBOL(generic_ide_ioctl);
-+
-+/*
-+ * stridx() returns the offset of c within s,
-+ * or -1 if c is '\0' or not found within s.
-+ */
-+static int __init stridx (const char *s, char c)
-+{
-+ char *i = strchr(s, c);
-+ return (i && c) ? i - s : -1;
-+}
-+
-+/*
-+ * match_parm() does parsing for ide_setup():
-+ *
-+ * 1. the first char of s must be '='.
-+ * 2. if the remainder matches one of the supplied keywords,
-+ * the index (1 based) of the keyword is negated and returned.
-+ * 3. if the remainder is a series of no more than max_vals numbers
-+ * separated by commas, the numbers are saved in vals[] and a
-+ * count of how many were saved is returned. Base10 is assumed,
-+ * and base16 is allowed when prefixed with "0x".
-+ * 4. otherwise, zero is returned.
-+ */
-+static int __init match_parm (char *s, const char *keywords[], int vals[], int max_vals)
-+{
-+ static const char *decimal = "0123456789";
-+ static const char *hex = "0123456789abcdef";
-+ int i, n;
-+
-+ if (*s++ == '=') {
-+ /*
-+ * Try matching against the supplied keywords,
-+ * and return -(index+1) if we match one
-+ */
-+ if (keywords != NULL) {
-+ for (i = 0; *keywords != NULL; ++i) {
-+ if (!strcmp(s, *keywords++))
-+ return -(i+1);
-+ }
-+ }
-+ /*
-+ * Look for a series of no more than "max_vals"
-+ * numeric values separated by commas, in base10,
-+ * or base16 when prefixed with "0x".
-+ * Return a count of how many were found.
-+ */
-+ for (n = 0; (i = stridx(decimal, *s)) >= 0;) {
-+ vals[n] = i;
-+ while ((i = stridx(decimal, *++s)) >= 0)
-+ vals[n] = (vals[n] * 10) + i;
-+ if (*s == 'x' && !vals[n]) {
-+ while ((i = stridx(hex, *++s)) >= 0)
-+ vals[n] = (vals[n] * 0x10) + i;
-+ }
-+ if (++n == max_vals)
-+ break;
-+ if (*s == ',' || *s == ';')
-+ ++s;
-+ }
-+ if (!*s)
-+ return n;
-+ }
-+ return 0; /* zero = nothing matched */
-+}
-+
-+#ifdef CONFIG_BLK_DEV_ALI14XX
-+static int __initdata probe_ali14xx;
-+extern int ali14xx_init(void);
-+#endif
-+#ifdef CONFIG_BLK_DEV_UMC8672
-+static int __initdata probe_umc8672;
-+extern int umc8672_init(void);
-+#endif
-+#ifdef CONFIG_BLK_DEV_DTC2278
-+static int __initdata probe_dtc2278;
-+extern int dtc2278_init(void);
-+#endif
-+#ifdef CONFIG_BLK_DEV_HT6560B
-+static int __initdata probe_ht6560b;
-+extern int ht6560b_init(void);
-+#endif
-+#ifdef CONFIG_BLK_DEV_QD65XX
-+static int __initdata probe_qd65xx;
-+extern int qd65xx_init(void);
-+#endif
-+
-+static int __initdata is_chipset_set[MAX_HWIFS];
-+
-+/*
-+ * ide_setup() gets called VERY EARLY during initialization,
-+ * to handle kernel "command line" strings beginning with "hdx=" or "ide".
-+ *
-+ * Remember to update Documentation/ide.txt if you change something here.
-+ */
-+static int __init ide_setup(char *s)
-+{
-+ int i, vals[3];
-+ ide_hwif_t *hwif;
-+ ide_drive_t *drive;
-+ unsigned int hw, unit;
-+ const char max_drive = 'a' + ((MAX_HWIFS * MAX_DRIVES) - 1);
-+ const char max_hwif = '0' + (MAX_HWIFS - 1);
-+
-+
-+ if (strncmp(s,"hd",2) == 0 && s[2] == '=') /* hd= is for hd.c */
-+ return 0; /* driver and not us */
-+
-+ if (strncmp(s,"ide",3) && strncmp(s,"idebus",6) && strncmp(s,"hd",2))
-+ return 0;
-+
-+ printk(KERN_INFO "ide_setup: %s", s);
-+ init_ide_data ();
-+
-+#ifdef CONFIG_BLK_DEV_IDEDOUBLER
-+ if (!strcmp(s, "ide=doubler")) {
-+ extern int ide_doubler;
-+
-+ printk(" : Enabled support for IDE doublers\n");
-+ ide_doubler = 1;
-+ return 1;
-+ }
-+#endif /* CONFIG_BLK_DEV_IDEDOUBLER */
-+
-+ if (!strcmp(s, "ide=nodma")) {
-+ printk(" : Prevented DMA\n");
-+ noautodma = 1;
-+ return 1;
-+ }
-+
-+#ifdef CONFIG_BLK_DEV_IDEPCI
-+ if (!strcmp(s, "ide=reverse")) {
-+ ide_scan_direction = 1;
-+ printk(" : Enabled support for IDE inverse scan order.\n");
-+ return 1;
-+ }
-+#endif /* CONFIG_BLK_DEV_IDEPCI */
-+
-+ /*
-+ * Look for drive options: "hdx="
-+ */
-+ if (s[0] == 'h' && s[1] == 'd' && s[2] >= 'a' && s[2] <= max_drive) {
-+ const char *hd_words[] = {
-+ "none", "noprobe", "nowerr", "cdrom", "serialize",
-+ "autotune", "noautotune", "minus8", "swapdata", "bswap",
-+ "noflush", "remap", "remap63", "scsi", NULL };
-+ unit = s[2] - 'a';
-+ hw = unit / MAX_DRIVES;
-+ unit = unit % MAX_DRIVES;
-+ hwif = &ide_hwifs[hw];
-+ drive = &hwif->drives[unit];
-+ if (strncmp(s + 4, "ide-", 4) == 0) {
-+ strlcpy(drive->driver_req, s + 4, sizeof(drive->driver_req));
-+ goto done;
-+ }
-+ switch (match_parm(&s[3], hd_words, vals, 3)) {
-+ case -1: /* "none" */
-+ case -2: /* "noprobe" */
-+ drive->noprobe = 1;
-+ goto done;
-+ case -3: /* "nowerr" */
-+ drive->bad_wstat = BAD_R_STAT;
-+ hwif->noprobe = 0;
-+ goto done;
-+ case -4: /* "cdrom" */
-+ drive->present = 1;
-+ drive->media = ide_cdrom;
-+ /* an ATAPI device ignores DRDY */
-+ drive->ready_stat = 0;
-+ hwif->noprobe = 0;
-+ goto done;
-+ case -5: /* "serialize" */
-+ printk(" -- USE \"ide%d=serialize\" INSTEAD", hw);
-+ goto do_serialize;
-+ case -6: /* "autotune" */
-+ drive->autotune = IDE_TUNE_AUTO;
-+ goto obsolete_option;
-+ case -7: /* "noautotune" */
-+ drive->autotune = IDE_TUNE_NOAUTO;
-+ goto obsolete_option;
-+ case -9: /* "swapdata" */
-+ case -10: /* "bswap" */
-+ drive->bswap = 1;
-+ goto done;
-+ case -11: /* noflush */
-+ drive->noflush = 1;
-+ goto done;
-+ case -12: /* "remap" */
-+ drive->remap_0_to_1 = 1;
-+ goto done;
-+ case -13: /* "remap63" */
-+ drive->sect0 = 63;
-+ goto done;
-+ case -14: /* "scsi" */
-+ drive->scsi = 1;
-+ goto done;
-+ case 3: /* cyl,head,sect */
-+ drive->media = ide_disk;
-+ drive->ready_stat = READY_STAT;
-+ drive->cyl = drive->bios_cyl = vals[0];
-+ drive->head = drive->bios_head = vals[1];
-+ drive->sect = drive->bios_sect = vals[2];
-+ drive->present = 1;
-+ drive->forced_geom = 1;
-+ hwif->noprobe = 0;
-+ goto done;
-+ default:
-+ goto bad_option;
-+ }
-+ }
-+
-+ if (s[0] != 'i' || s[1] != 'd' || s[2] != 'e')
-+ goto bad_option;
-+ /*
-+ * Look for bus speed option: "idebus="
-+ */
-+ if (s[3] == 'b' && s[4] == 'u' && s[5] == 's') {
-+ if (match_parm(&s[6], NULL, vals, 1) != 1)
-+ goto bad_option;
-+ if (vals[0] >= 20 && vals[0] <= 66) {
-+ idebus_parameter = vals[0];
-+ } else
-+ printk(" -- BAD BUS SPEED! Expected value from 20 to 66");
-+ goto done;
-+ }
-+ /*
-+ * Look for interface options: "idex="
-+ */
-+ if (s[3] >= '0' && s[3] <= max_hwif) {
-+ /*
-+ * Be VERY CAREFUL changing this: note hardcoded indexes below
-+ * (-8, -9, -10) are reserved to ease the hardcoding.
-+ */
-+ static const char *ide_words[] = {
-+ "noprobe", "serialize", "autotune", "noautotune",
-+ "reset", "dma", "ata66", "minus8", "minus9",
-+ "minus10", "four", "qd65xx", "ht6560b", "cmd640_vlb",
-+ "dtc2278", "umc8672", "ali14xx", NULL };
-+ hw = s[3] - '0';
-+ hwif = &ide_hwifs[hw];
-+ i = match_parm(&s[4], ide_words, vals, 3);
-+
-+ /*
-+ * Cryptic check to ensure chipset not already set for hwif.
-+ * Note: we can't depend on hwif->chipset here.
-+ */
-+ if ((i >= -18 && i <= -11) || (i > 0 && i <= 3)) {
-+ /* chipset already specified */
-+ if (is_chipset_set[hw])
-+ goto bad_option;
-+ if (i > -18 && i <= -11) {
-+ /* these drivers are for "ide0=" only */
-+ if (hw != 0)
-+ goto bad_hwif;
-+ /* chipset already specified for 2nd port */
-+ if (is_chipset_set[hw+1])
-+ goto bad_option;
-+ }
-+ is_chipset_set[hw] = 1;
-+ printk("\n");
-+ }
-+
-+ switch (i) {
-+#ifdef CONFIG_BLK_DEV_ALI14XX
-+ case -17: /* "ali14xx" */
-+ probe_ali14xx = 1;
-+ goto done;
-+#endif
-+#ifdef CONFIG_BLK_DEV_UMC8672
-+ case -16: /* "umc8672" */
-+ probe_umc8672 = 1;
-+ goto done;
-+#endif
-+#ifdef CONFIG_BLK_DEV_DTC2278
-+ case -15: /* "dtc2278" */
-+ probe_dtc2278 = 1;
-+ goto done;
-+#endif
-+#ifdef CONFIG_BLK_DEV_CMD640
-+ case -14: /* "cmd640_vlb" */
-+ {
-+ extern int cmd640_vlb; /* flag for cmd640.c */
-+ cmd640_vlb = 1;
-+ goto done;
-+ }
-+#endif
-+#ifdef CONFIG_BLK_DEV_HT6560B
-+ case -13: /* "ht6560b" */
-+ probe_ht6560b = 1;
-+ goto done;
-+#endif
-+#ifdef CONFIG_BLK_DEV_QD65XX
-+ case -12: /* "qd65xx" */
-+ probe_qd65xx = 1;
-+ goto done;
-+#endif
-+#ifdef CONFIG_BLK_DEV_4DRIVES
-+ case -11: /* "four" drives on one set of ports */
-+ {
-+ ide_hwif_t *mate = &ide_hwifs[hw^1];
-+ mate->drives[0].select.all ^= 0x20;
-+ mate->drives[1].select.all ^= 0x20;
-+ hwif->chipset = mate->chipset = ide_4drives;
-+ mate->irq = hwif->irq;
-+ memcpy(mate->io_ports, hwif->io_ports, sizeof(hwif->io_ports));
-+ goto do_serialize;
-+ }
-+#endif /* CONFIG_BLK_DEV_4DRIVES */
-+ case -10: /* minus10 */
-+ case -9: /* minus9 */
-+ case -8: /* minus8 */
-+ goto bad_option;
-+ case -7: /* ata66 */
-+#ifdef CONFIG_BLK_DEV_IDEPCI
-+ hwif->udma_four = 1;
-+ goto obsolete_option;
-+#else
-+ goto bad_hwif;
-+#endif
-+ case -6: /* dma */
-+ hwif->autodma = 1;
-+ goto obsolete_option;
-+ case -5: /* "reset" */
-+ hwif->reset = 1;
-+ goto obsolete_option;
-+ case -4: /* "noautotune" */
-+ hwif->drives[0].autotune = IDE_TUNE_NOAUTO;
-+ hwif->drives[1].autotune = IDE_TUNE_NOAUTO;
-+ goto obsolete_option;
-+ case -3: /* "autotune" */
-+ hwif->drives[0].autotune = IDE_TUNE_AUTO;
-+ hwif->drives[1].autotune = IDE_TUNE_AUTO;
-+ goto obsolete_option;
-+ case -2: /* "serialize" */
-+ do_serialize:
-+ hwif->mate = &ide_hwifs[hw^1];
-+ hwif->mate->mate = hwif;
-+ hwif->serialized = hwif->mate->serialized = 1;
-+ goto obsolete_option;
-+
-+ case -1: /* "noprobe" */
-+ hwif->noprobe = 1;
-+ goto done;
-+
-+ case 1: /* base */
-+ vals[1] = vals[0] + 0x206; /* default ctl */
-+ case 2: /* base,ctl */
-+ vals[2] = 0; /* default irq = probe for it */
-+ case 3: /* base,ctl,irq */
-+ hwif->hw.irq = vals[2];
-+ ide_init_hwif_ports(&hwif->hw, (unsigned long) vals[0], (unsigned long) vals[1], &hwif->irq);
-+ memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports));
-+ hwif->irq = vals[2];
-+ hwif->noprobe = 0;
-+ hwif->chipset = ide_forced;
-+ goto obsolete_option;
-+
-+ case 0: goto bad_option;
-+ default:
-+ printk(" -- SUPPORT NOT CONFIGURED IN THIS KERNEL\n");
-+ return 1;
-+ }
-+ }
-+bad_option:
-+ printk(" -- BAD OPTION\n");
-+ return 1;
-+obsolete_option:
-+ printk(" -- OBSOLETE OPTION, WILL BE REMOVED SOON!\n");
-+ return 1;
-+bad_hwif:
-+ printk("-- NOT SUPPORTED ON ide%d", hw);
-+done:
-+ printk("\n");
-+ return 1;
-+}
-+
-+extern void pnpide_init(void);
-+extern void h8300_ide_init(void);
-+
-+/*
-+ * probe_for_hwifs() finds/initializes "known" IDE interfaces
-+ */
-+static void __init probe_for_hwifs (void)
-+{
-+#ifdef CONFIG_BLK_DEV_IDEPCI
-+ ide_scan_pcibus(ide_scan_direction);
-+#endif /* CONFIG_BLK_DEV_IDEPCI */
-+
-+#ifdef CONFIG_ETRAX_IDE
-+ {
-+ extern void init_e100_ide(void);
-+ init_e100_ide();
-+ }
-+#endif /* CONFIG_ETRAX_IDE */
-+#ifdef CONFIG_BLK_DEV_CMD640
-+ {
-+ extern void ide_probe_for_cmd640x(void);
-+ ide_probe_for_cmd640x();
-+ }
-+#endif /* CONFIG_BLK_DEV_CMD640 */
-+#ifdef CONFIG_BLK_DEV_IDE_PMAC
-+ {
-+ extern void pmac_ide_probe(void);
-+ pmac_ide_probe();
-+ }
-+#endif /* CONFIG_BLK_DEV_IDE_PMAC */
-+#ifdef CONFIG_BLK_DEV_GAYLE
-+ {
-+ extern void gayle_init(void);
-+ gayle_init();
-+ }
-+#endif /* CONFIG_BLK_DEV_GAYLE */
-+#ifdef CONFIG_BLK_DEV_FALCON_IDE
-+ {
-+ extern void falconide_init(void);
-+ falconide_init();
-+ }
-+#endif /* CONFIG_BLK_DEV_FALCON_IDE */
-+#ifdef CONFIG_BLK_DEV_MAC_IDE
-+ {
-+ extern void macide_init(void);
-+ macide_init();
-+ }
-+#endif /* CONFIG_BLK_DEV_MAC_IDE */
-+#ifdef CONFIG_BLK_DEV_Q40IDE
-+ {
-+ extern void q40ide_init(void);
-+ q40ide_init();
-+ }
-+#endif /* CONFIG_BLK_DEV_Q40IDE */
-+#ifdef CONFIG_BLK_DEV_BUDDHA
-+ {
-+ extern void buddha_init(void);
-+ buddha_init();
-+ }
-+#endif /* CONFIG_BLK_DEV_BUDDHA */
-+#ifdef CONFIG_BLK_DEV_IDEPNP
-+ pnpide_init();
-+#endif
-+#ifdef CONFIG_H8300
-+ h8300_ide_init();
-+#endif
-+}
-+
-+void ide_register_subdriver(ide_drive_t *drive, ide_driver_t *driver)
-+{
-+#ifdef CONFIG_PROC_FS
-+ ide_add_proc_entries(drive->proc, driver->proc, drive);
-+#endif
-+}
-+
-+EXPORT_SYMBOL(ide_register_subdriver);
-+
-+/**
-+ * ide_unregister_subdriver - disconnect drive from driver
-+ * @drive: drive to unplug
-+ * @driver: driver
-+ *
-+ * Disconnect a drive from the driver it was attached to and then
-+ * clean up the various proc files and other objects attached to it.
-+ *
-+ * Takes ide_setting_sem and ide_lock.
-+ * Caller must hold none of the locks.
-+ */
-+
-+void ide_unregister_subdriver(ide_drive_t *drive, ide_driver_t *driver)
-+{
-+ unsigned long flags;
-+
-+ down(&ide_setting_sem);
-+ spin_lock_irqsave(&ide_lock, flags);
-+#ifdef CONFIG_PROC_FS
-+ ide_remove_proc_entries(drive->proc, driver->proc);
-+#endif
-+ auto_remove_settings(drive);
-+ spin_unlock_irqrestore(&ide_lock, flags);
-+ up(&ide_setting_sem);
-+}
-+
-+EXPORT_SYMBOL(ide_unregister_subdriver);
-+
-+/*
-+ * Probe module
-+ */
-+
-+EXPORT_SYMBOL(ide_lock);
-+
-+static int ide_bus_match(struct device *dev, struct device_driver *drv)
-+{
-+ return 1;
-+}
-+
-+static char *media_string(ide_drive_t *drive)
-+{
-+ switch (drive->media) {
-+ case ide_disk:
-+ return "disk";
-+ case ide_cdrom:
-+ return "cdrom";
-+ case ide_tape:
-+ return "tape";
-+ case ide_floppy:
-+ return "floppy";
-+ default:
-+ return "UNKNOWN";
-+ }
-+}
-+
-+static ssize_t media_show(struct device *dev, struct device_attribute *attr, char *buf)
-+{
-+ ide_drive_t *drive = to_ide_device(dev);
-+ return sprintf(buf, "%s\n", media_string(drive));
-+}
-+
-+static ssize_t drivename_show(struct device *dev, struct device_attribute *attr, char *buf)
-+{
-+ ide_drive_t *drive = to_ide_device(dev);
-+ return sprintf(buf, "%s\n", drive->name);
-+}
-+
-+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
-+{
-+ ide_drive_t *drive = to_ide_device(dev);
-+ return sprintf(buf, "ide:m-%s\n", media_string(drive));
-+}
-+
-+static struct device_attribute ide_dev_attrs[] = {
-+ __ATTR_RO(media),
-+ __ATTR_RO(drivename),
-+ __ATTR_RO(modalias),
-+ __ATTR_NULL
-+};
-+
-+static int ide_uevent(struct device *dev, char **envp, int num_envp,
-+ char *buffer, int buffer_size)
-+{
-+ ide_drive_t *drive = to_ide_device(dev);
-+ int i = 0;
-+ int length = 0;
-+
-+ add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
-+ "MEDIA=%s", media_string(drive));
-+ add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
-+ "DRIVENAME=%s", drive->name);
-+ add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
-+ "MODALIAS=ide:m-%s", media_string(drive));
-+ envp[i] = NULL;
-+ return 0;
-+}
-+
-+static int generic_ide_probe(struct device *dev)
-+{
-+ ide_drive_t *drive = to_ide_device(dev);
-+ ide_driver_t *drv = to_ide_driver(dev->driver);
-+
-+ return drv->probe ? drv->probe(drive) : -ENODEV;
-+}
-+
-+static int generic_ide_remove(struct device *dev)
-+{
-+ ide_drive_t *drive = to_ide_device(dev);
-+ ide_driver_t *drv = to_ide_driver(dev->driver);
-+
-+ if (drv->remove)
-+ drv->remove(drive);
-+
-+ return 0;
-+}
-+
-+static void generic_ide_shutdown(struct device *dev)
-+{
-+ ide_drive_t *drive = to_ide_device(dev);
-+ ide_driver_t *drv = to_ide_driver(dev->driver);
-+
-+ if (dev->driver && drv->shutdown)
-+ drv->shutdown(drive);
-+}
-+
-+struct bus_type ide_bus_type = {
-+ .name = "ide",
-+ .match = ide_bus_match,
-+ .uevent = ide_uevent,
-+ .probe = generic_ide_probe,
-+ .remove = generic_ide_remove,
-+ .shutdown = generic_ide_shutdown,
-+ .dev_attrs = ide_dev_attrs,
-+ .suspend = generic_ide_suspend,
-+ .resume = generic_ide_resume,
-+};
-+
-+EXPORT_SYMBOL_GPL(ide_bus_type);
-+
-+/*
-+ * This is gets invoked once during initialization, to set *everything* up
-+ */
-+static int __init ide_init(void)
-+{
-+ int ret;
-+
-+ printk(KERN_INFO "Uniform Multi-Platform E-IDE driver " REVISION "\n");
-+ system_bus_speed = ide_system_bus_speed();
-+
-+ ret = bus_register(&ide_bus_type);
-+ if (ret < 0) {
-+ printk(KERN_WARNING "IDE: bus_register error: %d\n", ret);
-+ return ret;
-+ }
-+
-+ init_ide_data();
-+
-+#ifdef CONFIG_PROC_FS
-+ proc_ide_root = proc_mkdir("ide", NULL);
-+#endif
-+
-+#ifdef CONFIG_BLK_DEV_ALI14XX
-+ if (probe_ali14xx)
-+ (void)ali14xx_init();
-+#endif
-+#ifdef CONFIG_BLK_DEV_UMC8672
-+ if (probe_umc8672)
-+ (void)umc8672_init();
-+#endif
-+#ifdef CONFIG_BLK_DEV_DTC2278
-+ if (probe_dtc2278)
-+ (void)dtc2278_init();
-+#endif
-+#ifdef CONFIG_BLK_DEV_HT6560B
-+ if (probe_ht6560b)
-+ (void)ht6560b_init();
-+#endif
-+#ifdef CONFIG_BLK_DEV_QD65XX
-+ if (probe_qd65xx)
-+ (void)qd65xx_init();
-+#endif
-+
-+ initializing = 1;
-+ /* Probe for special PCI and other "known" interface chipsets. */
-+ probe_for_hwifs();
-+ initializing = 0;
-+
-+#ifdef CONFIG_PROC_FS
-+ proc_ide_create();
-+#endif
-+ return 0;
-+}
-+
-+#ifdef MODULE
-+static char *options = NULL;
-+module_param(options, charp, 0);
-+MODULE_LICENSE("GPL");
-+
-+static void __init parse_options (char *line)
-+{
-+ char *next = line;
-+
-+ if (line == NULL || !*line)
-+ return;
-+ while ((line = next) != NULL) {
-+ if ((next = strchr(line,' ')) != NULL)
-+ *next++ = 0;
-+ if (!ide_setup(line))
-+ printk (KERN_INFO "Unknown option '%s'\n", line);
-+ }
-+}
-+
-+int __init init_module (void)
-+{
-+ parse_options(options);
-+ return ide_init();
-+}
-+
-+void cleanup_module (void)
-+{
-+ int index;
-+
-+ for (index = 0; index < MAX_HWIFS; ++index)
-+ ide_unregister(index);
-+
-+#ifdef CONFIG_PROC_FS
-+ proc_ide_destroy();
-+#endif
-+
-+ bus_unregister(&ide_bus_type);
-+}
-+
-+#else /* !MODULE */
-+
-+__setup("", ide_setup);
-+
-+module_init(ide_init);
-+
-+#endif /* MODULE */
projects / openwrt / svn-archive / archive.git / commitdiff