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@@ -0,0 +1,2306 @@
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+diff -purN linux.old/drivers/ide/ide.c linux.dev/drivers/ide/ide.c
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+--- linux.old/drivers/ide/ide.c 2007-01-10 20:10:37.000000000 +0100
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++++ linux.dev/drivers/ide/ide.c 2007-04-09 01:25:30.866800288 +0200
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+@@ -1783,6 +1783,7 @@ done:
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+
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+ extern void pnpide_init(void);
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+ extern void h8300_ide_init(void);
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++extern void ide_magicbox_init(void);
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+
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+ /*
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+ * probe_for_hwifs() finds/initializes "known" IDE interfaces
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+@@ -1847,6 +1848,9 @@ static void __init probe_for_hwifs (void
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+ #ifdef CONFIG_H8300
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+ h8300_ide_init();
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+ #endif
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++#ifdef CONFIG_BLK_DEV_MAGICBOX_IDE
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++ ide_magicbox_init();
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++#endif
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+ }
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+
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+ void ide_register_subdriver(ide_drive_t *drive, ide_driver_t *driver)
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+diff -purN linux.old/drivers/ide/ide.c.orig linux.dev/drivers/ide/ide.c.orig
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+--- linux.old/drivers/ide/ide.c.orig 1970-01-01 01:00:00.000000000 +0100
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++++ linux.dev/drivers/ide/ide.c.orig 2007-01-10 20:10:37.000000000 +0100
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+@@ -0,0 +1,2099 @@
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++/*
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++ * linux/drivers/ide/ide.c Version 7.00beta2 Mar 05 2003
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++ *
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++ * Copyright (C) 1994-1998 Linus Torvalds & authors (see below)
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++ */
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++
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++/*
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++ * Mostly written by Mark Lord <[email protected]>
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++ * and Gadi Oxman <[email protected]>
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++ * and Andre Hedrick <[email protected]>
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++ *
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++ * See linux/MAINTAINERS for address of current maintainer.
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++ *
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++ * This is the multiple IDE interface driver, as evolved from hd.c.
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++ * It supports up to MAX_HWIFS IDE interfaces, on one or more IRQs
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++ * (usually 14 & 15).
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++ * There can be up to two drives per interface, as per the ATA-2 spec.
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++ *
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++ * Primary: ide0, port 0x1f0; major=3; hda is minor=0; hdb is minor=64
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++ * Secondary: ide1, port 0x170; major=22; hdc is minor=0; hdd is minor=64
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++ * Tertiary: ide2, port 0x???; major=33; hde is minor=0; hdf is minor=64
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++ * Quaternary: ide3, port 0x???; major=34; hdg is minor=0; hdh is minor=64
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++ * ...
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++ *
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++ * From hd.c:
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++ * |
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++ * | It traverses the request-list, using interrupts to jump between functions.
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++ * | As nearly all functions can be called within interrupts, we may not sleep.
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++ * | Special care is recommended. Have Fun!
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++ * |
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++ * | modified by Drew Eckhardt to check nr of hd's from the CMOS.
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++ * |
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++ * | Thanks to Branko Lankester, [email protected], who found a bug
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++ * | in the early extended-partition checks and added DM partitions.
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++ * |
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++ * | Early work on error handling by Mika Liljeberg ([email protected]).
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++ * |
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++ * | IRQ-unmask, drive-id, multiple-mode, support for ">16 heads",
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++ * | and general streamlining by Mark Lord ([email protected]).
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++ *
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++ * October, 1994 -- Complete line-by-line overhaul for linux 1.1.x, by:
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++ *
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++ * Mark Lord ([email protected]) (IDE Perf.Pkg)
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++ * Delman Lee ([email protected]) ("Mr. atdisk2")
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++ * Scott Snyder ([email protected]) (ATAPI IDE cd-rom)
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++ *
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++ * This was a rewrite of just about everything from hd.c, though some original
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++ * code is still sprinkled about. Think of it as a major evolution, with
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++ * inspiration from lots of linux users, esp. [email protected]
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++ *
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++ * Version 1.0 ALPHA initial code, primary i/f working okay
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++ * Version 1.3 BETA dual i/f on shared irq tested & working!
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++ * Version 1.4 BETA added auto probing for irq(s)
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++ * Version 1.5 BETA added ALPHA (untested) support for IDE cd-roms,
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++ * ...
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++ * Version 5.50 allow values as small as 20 for idebus=
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++ * Version 5.51 force non io_32bit in drive_cmd_intr()
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++ * change delay_10ms() to delay_50ms() to fix problems
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++ * Version 5.52 fix incorrect invalidation of removable devices
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++ * add "hdx=slow" command line option
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++ * Version 5.60 start to modularize the driver; the disk and ATAPI
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++ * drivers can be compiled as loadable modules.
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++ * move IDE probe code to ide-probe.c
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++ * move IDE disk code to ide-disk.c
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++ * add support for generic IDE device subdrivers
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++ * add m68k code from Geert Uytterhoeven
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++ * probe all interfaces by default
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++ * add ioctl to (re)probe an interface
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++ * Version 6.00 use per device request queues
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++ * attempt to optimize shared hwgroup performance
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++ * add ioctl to manually adjust bandwidth algorithms
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++ * add kerneld support for the probe module
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++ * fix bug in ide_error()
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++ * fix bug in the first ide_get_lock() call for Atari
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++ * don't flush leftover data for ATAPI devices
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++ * Version 6.01 clear hwgroup->active while the hwgroup sleeps
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++ * support HDIO_GETGEO for floppies
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++ * Version 6.02 fix ide_ack_intr() call
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++ * check partition table on floppies
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++ * Version 6.03 handle bad status bit sequencing in ide_wait_stat()
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++ * Version 6.10 deleted old entries from this list of updates
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++ * replaced triton.c with ide-dma.c generic PCI DMA
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++ * added support for BIOS-enabled UltraDMA
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++ * rename all "promise" things to "pdc4030"
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++ * fix EZ-DRIVE handling on small disks
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++ * Version 6.11 fix probe error in ide_scan_devices()
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++ * fix ancient "jiffies" polling bugs
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++ * mask all hwgroup interrupts on each irq entry
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++ * Version 6.12 integrate ioctl and proc interfaces
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++ * fix parsing of "idex=" command line parameter
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++ * Version 6.13 add support for ide4/ide5 courtesy [email protected]
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++ * Version 6.14 fixed IRQ sharing among PCI devices
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++ * Version 6.15 added SMP awareness to IDE drivers
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++ * Version 6.16 fixed various bugs; even more SMP friendly
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++ * Version 6.17 fix for newest EZ-Drive problem
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++ * Version 6.18 default unpartitioned-disk translation now "BIOS LBA"
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++ * Version 6.19 Re-design for a UNIFORM driver for all platforms,
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++ * model based on suggestions from Russell King and
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++ * Geert Uytterhoeven
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++ * Promise DC4030VL now supported.
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++ * add support for ide6/ide7
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++ * delay_50ms() changed to ide_delay_50ms() and exported.
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++ * Version 6.20 Added/Fixed Generic ATA-66 support and hwif detection.
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++ * Added hdx=flash to allow for second flash disk
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++ * detection w/o the hang loop.
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++ * Added support for ide8/ide9
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++ * Added idex=ata66 for the quirky chipsets that are
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++ * ATA-66 compliant, but have yet to determine a method
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++ * of verification of the 80c cable presence.
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++ * Specifically Promise's PDC20262 chipset.
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++ * Version 6.21 Fixing/Fixed SMP spinlock issue with insight from an old
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++ * hat that clarified original low level driver design.
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++ * Version 6.30 Added SMP support; fixed multmode issues. -ml
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++ * Version 6.31 Debug Share INTR's and request queue streaming
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++ * Native ATA-100 support
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++ * Prep for Cascades Project
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++ * Version 7.00alpha First named revision of ide rearrange
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++ *
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++ * Some additional driver compile-time options are in ./include/linux/ide.h
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++ *
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++ * To do, in likely order of completion:
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++ * - modify kernel to obtain BIOS geometry for drives on 2nd/3rd/4th i/f
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++ *
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++ */
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++
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++#define REVISION "Revision: 7.00alpha2"
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++#define VERSION "Id: ide.c 7.00a2 20020906"
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++
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++#undef REALLY_SLOW_IO /* most systems can safely undef this */
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++
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++#define _IDE_C /* Tell ide.h it's really us */
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++
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++#include <linux/module.h>
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++#include <linux/types.h>
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++#include <linux/string.h>
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++#include <linux/kernel.h>
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++#include <linux/timer.h>
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++#include <linux/mm.h>
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++#include <linux/interrupt.h>
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++#include <linux/major.h>
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++#include <linux/errno.h>
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++#include <linux/genhd.h>
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++#include <linux/blkpg.h>
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++#include <linux/slab.h>
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++#include <linux/init.h>
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++#include <linux/pci.h>
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++#include <linux/delay.h>
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++#include <linux/ide.h>
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++#include <linux/completion.h>
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++#include <linux/reboot.h>
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++#include <linux/cdrom.h>
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++#include <linux/seq_file.h>
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++#include <linux/device.h>
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++#include <linux/bitops.h>
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++
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++#include <asm/byteorder.h>
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++#include <asm/irq.h>
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++#include <asm/uaccess.h>
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++#include <asm/io.h>
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++
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++
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++/* default maximum number of failures */
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++#define IDE_DEFAULT_MAX_FAILURES 1
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++
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++static const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR,
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++ IDE2_MAJOR, IDE3_MAJOR,
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++ IDE4_MAJOR, IDE5_MAJOR,
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++ IDE6_MAJOR, IDE7_MAJOR,
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++ IDE8_MAJOR, IDE9_MAJOR };
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++
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++static int idebus_parameter; /* holds the "idebus=" parameter */
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++static int system_bus_speed; /* holds what we think is VESA/PCI bus speed */
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++static int initializing; /* set while initializing built-in drivers */
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++
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++DECLARE_MUTEX(ide_cfg_sem);
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++ __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock);
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++
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++#ifdef CONFIG_BLK_DEV_IDEPCI
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++static int ide_scan_direction; /* THIS was formerly 2.2.x pci=reverse */
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++#endif
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++
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++#ifdef CONFIG_IDEDMA_AUTO
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++int noautodma = 0;
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++#else
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++int noautodma = 1;
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++#endif
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++
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++EXPORT_SYMBOL(noautodma);
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++
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++/*
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++ * This is declared extern in ide.h, for access by other IDE modules:
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++ */
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++ide_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */
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++
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++EXPORT_SYMBOL(ide_hwifs);
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++
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++/*
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++ * Do not even *think* about calling this!
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++ */
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++static void init_hwif_data(ide_hwif_t *hwif, unsigned int index)
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++{
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++ unsigned int unit;
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++
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++ /* bulk initialize hwif & drive info with zeros */
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++ memset(hwif, 0, sizeof(ide_hwif_t));
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++
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++ /* fill in any non-zero initial values */
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++ hwif->index = index;
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++ hwif->major = ide_hwif_to_major[index];
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++
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++ hwif->name[0] = 'i';
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++ hwif->name[1] = 'd';
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++ hwif->name[2] = 'e';
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++ hwif->name[3] = '0' + index;
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++
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++ hwif->bus_state = BUSSTATE_ON;
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++
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++ hwif->atapi_dma = 0; /* disable all atapi dma */
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++ hwif->ultra_mask = 0x80; /* disable all ultra */
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++ hwif->mwdma_mask = 0x80; /* disable all mwdma */
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++ hwif->swdma_mask = 0x80; /* disable all swdma */
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++
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++ init_completion(&hwif->gendev_rel_comp);
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++
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++ default_hwif_iops(hwif);
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++ default_hwif_transport(hwif);
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++ for (unit = 0; unit < MAX_DRIVES; ++unit) {
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++ ide_drive_t *drive = &hwif->drives[unit];
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++
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++ drive->media = ide_disk;
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++ drive->select.all = (unit<<4)|0xa0;
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++ drive->hwif = hwif;
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++ drive->ctl = 0x08;
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++ drive->ready_stat = READY_STAT;
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++ drive->bad_wstat = BAD_W_STAT;
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++ drive->special.b.recalibrate = 1;
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++ drive->special.b.set_geometry = 1;
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++ drive->name[0] = 'h';
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++ drive->name[1] = 'd';
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++ drive->name[2] = 'a' + (index * MAX_DRIVES) + unit;
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++ drive->max_failures = IDE_DEFAULT_MAX_FAILURES;
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++ drive->using_dma = 0;
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++ drive->vdma = 0;
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++ INIT_LIST_HEAD(&drive->list);
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++ init_completion(&drive->gendev_rel_comp);
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++ }
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++}
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++
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++static void init_hwif_default(ide_hwif_t *hwif, unsigned int index)
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++{
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++ hw_regs_t hw;
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++
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++ memset(&hw, 0, sizeof(hw_regs_t));
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++
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++ ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, &hwif->irq);
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++
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++ memcpy(&hwif->hw, &hw, sizeof(hw));
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++ memcpy(hwif->io_ports, hw.io_ports, sizeof(hw.io_ports));
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++
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++ hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET];
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++#ifdef CONFIG_BLK_DEV_HD
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++ if (hwif->io_ports[IDE_DATA_OFFSET] == HD_DATA)
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++ hwif->noprobe = 1; /* may be overridden by ide_setup() */
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++#endif
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++}
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++
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++extern void ide_arm_init(void);
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++
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++/*
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++ * init_ide_data() sets reasonable default values into all fields
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++ * of all instances of the hwifs and drives, but only on the first call.
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++ * Subsequent calls have no effect (they don't wipe out anything).
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++ *
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++ * This routine is normally called at driver initialization time,
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++ * but may also be called MUCH earlier during kernel "command-line"
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++ * parameter processing. As such, we cannot depend on any other parts
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++ * of the kernel (such as memory allocation) to be functioning yet.
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++ *
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++ * This is too bad, as otherwise we could dynamically allocate the
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++ * ide_drive_t structs as needed, rather than always consuming memory
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++ * for the max possible number (MAX_HWIFS * MAX_DRIVES) of them.
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++ *
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++ * FIXME: We should stuff the setup data into __init and copy the
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++ * relevant hwifs/allocate them properly during boot.
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++ */
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++#define MAGIC_COOKIE 0x12345678
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++static void __init init_ide_data (void)
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++{
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++ ide_hwif_t *hwif;
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++ unsigned int index;
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++ static unsigned long magic_cookie = MAGIC_COOKIE;
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++
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++ if (magic_cookie != MAGIC_COOKIE)
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++ return; /* already initialized */
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++ magic_cookie = 0;
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++
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++ /* Initialise all interface structures */
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++ for (index = 0; index < MAX_HWIFS; ++index) {
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++ hwif = &ide_hwifs[index];
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++ init_hwif_data(hwif, index);
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++ init_hwif_default(hwif, index);
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++#if !defined(CONFIG_PPC32) || !defined(CONFIG_PCI)
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++ hwif->irq = hwif->hw.irq =
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++ ide_init_default_irq(hwif->io_ports[IDE_DATA_OFFSET]);
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++#endif
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++ }
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++#ifdef CONFIG_IDE_ARM
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++ initializing = 1;
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++ ide_arm_init();
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++ initializing = 0;
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++#endif
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++}
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++
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++/**
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++ * ide_system_bus_speed - guess bus speed
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++ *
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++ * ide_system_bus_speed() returns what we think is the system VESA/PCI
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++ * bus speed (in MHz). This is used for calculating interface PIO timings.
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++ * The default is 40 for known PCI systems, 50 otherwise.
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++ * The "idebus=xx" parameter can be used to override this value.
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++ * The actual value to be used is computed/displayed the first time
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++ * through. Drivers should only use this as a last resort.
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++ *
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++ * Returns a guessed speed in MHz.
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++ */
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++
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++static int ide_system_bus_speed(void)
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++{
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++#ifdef CONFIG_PCI
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++ static struct pci_device_id pci_default[] = {
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++ { PCI_DEVICE(PCI_ANY_ID, PCI_ANY_ID) },
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++ { }
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++ };
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++#else
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++#define pci_default 0
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++#endif /* CONFIG_PCI */
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++
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++ if (!system_bus_speed) {
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++ if (idebus_parameter) {
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++ /* user supplied value */
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++ system_bus_speed = idebus_parameter;
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++ } 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 <[email protected]>
|
|
|
++ *
|
|
|
++ * 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);
|
|
|
++}
|
|
|
++
|
Felix Fietkau