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author | Felix Fietkau <nbd@openwrt.org> | 2007-04-09 00:50:53 +0000 |
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committer | Felix Fietkau <nbd@openwrt.org> | 2007-04-09 00:50:53 +0000 |
commit | 66ffe4b0538c3ca65845411d233d6015d90aa6ee (patch) | |
tree | 469e5b3c771378f19c1ed7ef40a0ffb1d137ebcf /target/linux/magicbox-2.6/patches | |
parent | 880b837992cb63fbfd62df567658881e238875b4 (diff) | |
download | master-31e0f0ae-66ffe4b0538c3ca65845411d233d6015d90aa6ee.tar.gz master-31e0f0ae-66ffe4b0538c3ca65845411d233d6015d90aa6ee.tar.bz2 master-31e0f0ae-66ffe4b0538c3ca65845411d233d6015d90aa6ee.zip |
add magicbox 2.0 cf slot support - kmod-ide must not be used on magicbox 1.1 (no working hw detection yet)
SVN-Revision: 6909
Diffstat (limited to 'target/linux/magicbox-2.6/patches')
-rw-r--r-- | target/linux/magicbox-2.6/patches/100-cf_slot.patch | 2306 |
1 files changed, 2306 insertions, 0 deletions
diff --git a/target/linux/magicbox-2.6/patches/100-cf_slot.patch b/target/linux/magicbox-2.6/patches/100-cf_slot.patch new file mode 100644 index 0000000000..b5e12438f2 --- /dev/null +++ b/target/linux/magicbox-2.6/patches/100-cf_slot.patch @@ -0,0 +1,2306 @@ +diff -purN linux.old/drivers/ide/ide.c linux.dev/drivers/ide/ide.c +--- linux.old/drivers/ide/ide.c 2007-01-10 20:10:37.000000000 +0100 ++++ linux.dev/drivers/ide/ide.c 2007-04-09 01:25:30.866800288 +0200 +@@ -1783,6 +1783,7 @@ done: + + extern void pnpide_init(void); + extern void h8300_ide_init(void); ++extern void ide_magicbox_init(void); + + /* + * probe_for_hwifs() finds/initializes "known" IDE interfaces +@@ -1847,6 +1848,9 @@ static void __init probe_for_hwifs (void + #ifdef CONFIG_H8300 + h8300_ide_init(); + #endif ++#ifdef CONFIG_BLK_DEV_MAGICBOX_IDE ++ ide_magicbox_init(); ++#endif + } + + void ide_register_subdriver(ide_drive_t *drive, ide_driver_t *driver) +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 */ +diff -purN linux.old/drivers/ide/Kconfig linux.dev/drivers/ide/Kconfig +--- linux.old/drivers/ide/Kconfig 2007-01-10 20:10:37.000000000 +0100 ++++ linux.dev/drivers/ide/Kconfig 2007-04-09 01:15:27.570515264 +0200 +@@ -925,6 +925,14 @@ config BLK_DEV_MPC8xx_IDE + + If unsure, say N. + ++config BLK_DEV_MAGICBOX_IDE ++ bool "MagicBox 2.0 CF IDE support" ++ depends on 4xx && IDE ++ help ++ This option provides support for IDE on MagicBox 2.0 boards. ++ ++ If unsure, say N. ++ + choice + prompt "Type of MPC8xx IDE interface" + depends on BLK_DEV_MPC8xx_IDE +diff -purN linux.old/drivers/ide/Makefile linux.dev/drivers/ide/Makefile +--- linux.old/drivers/ide/Makefile 2007-01-10 20:10:37.000000000 +0100 ++++ linux.dev/drivers/ide/Makefile 2007-04-09 00:23:29.332559488 +0200 +@@ -36,6 +36,7 @@ ide-core-$(CONFIG_BLK_DEV_Q40IDE) += leg + # built-in only drivers from ppc/ + ide-core-$(CONFIG_BLK_DEV_MPC8xx_IDE) += ppc/mpc8xx.o + ide-core-$(CONFIG_BLK_DEV_IDE_PMAC) += ppc/pmac.o ++ide-core-$(CONFIG_BLK_DEV_MAGICBOX_IDE) += ppc/magicbox_ide.o + + # built-in only drivers from h8300/ + ide-core-$(CONFIG_H8300) += h8300/ide-h8300.o +diff -purN linux.old/drivers/ide/ppc/magicbox_ide.c linux.dev/drivers/ide/ppc/magicbox_ide.c +--- linux.old/drivers/ide/ppc/magicbox_ide.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux.dev/drivers/ide/ppc/magicbox_ide.c 2007-04-09 01:25:39.119545680 +0200 +@@ -0,0 +1,149 @@ ++/* Driver for MagicBox 2.0 onboard CompactFlash adapter. ++ * Written by Wojtek Kaniewski <wojtekka@toxygen.net> ++ * ++ * GNU General Public License. ++ */ ++ ++#include <linux/types.h> ++#include <linux/mm.h> ++#include <linux/interrupt.h> ++#include <linux/blkdev.h> ++#include <linux/hdreg.h> ++#include <linux/ide.h> ++#include <linux/delay.h> ++#include <linux/platform_device.h> ++ ++ ++#define UIC0_PR 0xc4 ++#define UIC0_TR 0xc5 ++#define IRQ 25 ++ ++static int ide_offsets[IDE_NR_PORTS] = {0, 2, 4, 6, 8, 10, 12, 14, -1, -1}; ++ ++static u8 magicbox_ide_inb (unsigned long port) ++{ ++ return (u8) (readw((void __iomem *) port) >> 8) & 255; ++} ++ ++static u16 magicbox_ide_inw (unsigned long port) ++{ ++ return (u16) readw((void __iomem *) port); ++} ++ ++static void magicbox_ide_insw (unsigned long port, void *addr, u32 count) ++{ ++ u16 *ptr; ++ ++ for (ptr = addr; count--; ptr++) ++ *ptr = readw((void __iomem *) port); ++} ++ ++static u32 magicbox_ide_inl (unsigned long port) ++{ ++ return (u32) readl((void __iomem *) port); ++} ++ ++static void magicbox_ide_insl (unsigned long port, void *addr, u32 count) ++{ ++ u32 *ptr; ++ ++ for (ptr = addr; count--; ptr++) ++ *ptr = readl((void __iomem *) port); ++} ++ ++static void magicbox_ide_outb (u8 value, unsigned long port) ++{ ++ writew(value << 8, (void __iomem *) port); ++} ++ ++static void magicbox_ide_outbsync (ide_drive_t *drive, u8 value, unsigned long port) ++{ ++ writew(value << 8, (void __iomem *) port); ++} ++ ++static void magicbox_ide_outw (u16 value, unsigned long port) ++{ ++ writew(value, (void __iomem *) port); ++} ++ ++static void magicbox_ide_outsw (unsigned long port, void *addr, u32 count) ++{ ++ u16 *ptr; ++ ++ for (ptr = addr; count--; ptr++) ++ writew(*ptr, (void __iomem *) port); ++} ++ ++static void magicbox_ide_outl (u32 value, unsigned long port) ++{ ++ writel(value, (void __iomem *) port); ++} ++ ++static void magicbox_ide_outsl (unsigned long port, void *addr, u32 count) ++{ ++ u32 *ptr; ++ ++ for (ptr = addr; count--; ptr++) ++ writel(*ptr, (void __iomem *) port); ++} ++ ++ ++static void __init ide_magicbox_register(unsigned long addr, ++ unsigned long caddr, int irq) ++{ ++ hw_regs_t hw; ++ ide_hwif_t *hwif; ++ ++ memset(&hw, 0, sizeof(hw)); ++ ide_setup_ports(&hw, addr, ide_offsets, caddr + 12, 0, NULL,irq); ++ ++ if (ide_register_hw(&hw, &hwif) != -1) ++ { ++ printk(KERN_NOTICE "magicbox-ide: Registered IDE-CF driver\n"); ++ hwif->mmio = 2; ++ hwif->drives[0].unmask = 1; ++ hwif->OUTB = magicbox_ide_outb; ++ hwif->OUTBSYNC = magicbox_ide_outbsync; ++ hwif->OUTW = magicbox_ide_outw; ++ hwif->OUTL = magicbox_ide_outl; ++ hwif->OUTSW = magicbox_ide_outsw; ++ hwif->OUTSL = magicbox_ide_outsl; ++ hwif->INB = magicbox_ide_inb; ++ hwif->INW = magicbox_ide_inw; ++ hwif->INL = magicbox_ide_inl; ++ hwif->INSW = magicbox_ide_insw; ++ hwif->INSL = magicbox_ide_insl; ++ } ++} ++ ++void __init ide_magicbox_init(void) ++{ ++ volatile u16 *addr; ++ volatile u16 *caddr; ++ ++ /* Turn on PerWE instead of PCIsomething */ ++ mtdcr(DCRN_CPC0_PCI_BASE, mfdcr(DCRN_CPC0_PCI_BASE) | (0x80000000L >> 27)); ++ ++ /* PerCS1 (CF's CS0): base 0xff100000, 16-bit, rw */ ++ mtdcr(DCRN_EBC_BASE, 1); ++ mtdcr(DCRN_EBC_BASE + 1, 0xff11a000); ++ mtdcr(DCRN_EBC_BASE, 0x11); ++ mtdcr(DCRN_EBC_BASE + 1, 0x080bd800); ++ ++ /* PerCS2 (CF's CS1): base 0xff200000, 16-bit, rw */ ++ mtdcr(DCRN_EBC_BASE, 2); ++ mtdcr(DCRN_EBC_BASE + 1, 0xff21a000); ++ mtdcr(DCRN_EBC_BASE, 0x12); ++ mtdcr(DCRN_EBC_BASE + 1, 0x080bd800); ++ ++ /* Remap physical address space */ ++ addr = ioremap_nocache(0xff100000, 4096); ++ caddr = ioremap_nocache(0xff200000, 4096); ++ ++ /* Set interrupt to low-to-high-edge-triggered */ ++ mtdcr(UIC0_TR, mfdcr(UIC0_TR) & ~(0x80000000L >> IRQ)); ++ mtdcr(UIC0_PR, mfdcr(UIC0_PR) | (0x80000000L >> IRQ)); ++ ++ ide_magicbox_register((unsigned long)addr, (unsigned long)caddr, IRQ); ++} ++ |