ide.c revision 8604affde9d4f52f04342d6a37c77d95fa167e7a
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/drivers/ide/ide.c Version 7.00beta2 Mar 05 2003 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 1994-1998 Linus Torvalds & authors (see below) 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mostly written by Mark Lord <mlord@pobox.com> 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and Gadi Oxman <gadio@netvision.net.il> 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and Andre Hedrick <andre@linux-ide.org> 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * See linux/MAINTAINERS for address of current maintainer. 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is the multiple IDE interface driver, as evolved from hd.c. 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * It supports up to MAX_HWIFS IDE interfaces, on one or more IRQs 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (usually 14 & 15). 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There can be up to two drives per interface, as per the ATA-2 spec. 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Primary: ide0, port 0x1f0; major=3; hda is minor=0; hdb is minor=64 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Secondary: ide1, port 0x170; major=22; hdc is minor=0; hdd is minor=64 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Tertiary: ide2, port 0x???; major=33; hde is minor=0; hdf is minor=64 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Quaternary: ide3, port 0x???; major=34; hdg is minor=0; hdh is minor=64 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ... 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * From hd.c: 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | It traverses the request-list, using interrupts to jump between functions. 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | As nearly all functions can be called within interrupts, we may not sleep. 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | Special care is recommended. Have Fun! 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | modified by Drew Eckhardt to check nr of hd's from the CMOS. 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | Thanks to Branko Lankester, lankeste@fwi.uva.nl, who found a bug 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | in the early extended-partition checks and added DM partitions. 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | Early work on error handling by Mika Liljeberg (liljeber@cs.Helsinki.FI). 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | IRQ-unmask, drive-id, multiple-mode, support for ">16 heads", 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | and general streamlining by Mark Lord (mlord@pobox.com). 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * October, 1994 -- Complete line-by-line overhaul for linux 1.1.x, by: 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mark Lord (mlord@pobox.com) (IDE Perf.Pkg) 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Delman Lee (delman@ieee.org) ("Mr. atdisk2") 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Scott Snyder (snyder@fnald0.fnal.gov) (ATAPI IDE cd-rom) 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This was a rewrite of just about everything from hd.c, though some original 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * code is still sprinkled about. Think of it as a major evolution, with 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * inspiration from lots of linux users, esp. hamish@zot.apana.org.au 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 1.0 ALPHA initial code, primary i/f working okay 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 1.3 BETA dual i/f on shared irq tested & working! 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 1.4 BETA added auto probing for irq(s) 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 1.5 BETA added ALPHA (untested) support for IDE cd-roms, 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ... 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 5.50 allow values as small as 20 for idebus= 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 5.51 force non io_32bit in drive_cmd_intr() 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * change delay_10ms() to delay_50ms() to fix problems 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 5.52 fix incorrect invalidation of removable devices 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * add "hdx=slow" command line option 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 5.60 start to modularize the driver; the disk and ATAPI 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * drivers can be compiled as loadable modules. 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * move IDE probe code to ide-probe.c 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * move IDE disk code to ide-disk.c 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * add support for generic IDE device subdrivers 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * add m68k code from Geert Uytterhoeven 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * probe all interfaces by default 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * add ioctl to (re)probe an interface 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.00 use per device request queues 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attempt to optimize shared hwgroup performance 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * add ioctl to manually adjust bandwidth algorithms 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * add kerneld support for the probe module 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fix bug in ide_error() 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fix bug in the first ide_get_lock() call for Atari 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * don't flush leftover data for ATAPI devices 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.01 clear hwgroup->active while the hwgroup sleeps 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * support HDIO_GETGEO for floppies 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.02 fix ide_ack_intr() call 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * check partition table on floppies 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.03 handle bad status bit sequencing in ide_wait_stat() 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.10 deleted old entries from this list of updates 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * replaced triton.c with ide-dma.c generic PCI DMA 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * added support for BIOS-enabled UltraDMA 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * rename all "promise" things to "pdc4030" 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fix EZ-DRIVE handling on small disks 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.11 fix probe error in ide_scan_devices() 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fix ancient "jiffies" polling bugs 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * mask all hwgroup interrupts on each irq entry 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.12 integrate ioctl and proc interfaces 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * fix parsing of "idex=" command line parameter 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.13 add support for ide4/ide5 courtesy rjones@orchestream.com 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.14 fixed IRQ sharing among PCI devices 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.15 added SMP awareness to IDE drivers 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.16 fixed various bugs; even more SMP friendly 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.17 fix for newest EZ-Drive problem 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.18 default unpartitioned-disk translation now "BIOS LBA" 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.19 Re-design for a UNIFORM driver for all platforms, 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * model based on suggestions from Russell King and 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Geert Uytterhoeven 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Promise DC4030VL now supported. 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * add support for ide6/ide7 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * delay_50ms() changed to ide_delay_50ms() and exported. 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.20 Added/Fixed Generic ATA-66 support and hwif detection. 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Added hdx=flash to allow for second flash disk 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * detection w/o the hang loop. 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Added support for ide8/ide9 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Added idex=ata66 for the quirky chipsets that are 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ATA-66 compliant, but have yet to determine a method 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of verification of the 80c cable presence. 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Specifically Promise's PDC20262 chipset. 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.21 Fixing/Fixed SMP spinlock issue with insight from an old 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * hat that clarified original low level driver design. 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.30 Added SMP support; fixed multmode issues. -ml 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 6.31 Debug Share INTR's and request queue streaming 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Native ATA-100 support 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Prep for Cascades Project 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Version 7.00alpha First named revision of ide rearrange 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Some additional driver compile-time options are in ./include/linux/ide.h 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * To do, in likely order of completion: 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * - modify kernel to obtain BIOS geometry for drives on 2nd/3rd/4th i/f 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define REVISION "Revision: 7.00alpha2" 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VERSION "Id: ide.c 7.00a2 20020906" 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#undef REALLY_SLOW_IO /* most systems can safely undef this */ 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define _IDE_C /* Tell ide.h it's really us */ 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/config.h> 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/timer.h> 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mm.h> 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/interrupt.h> 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/major.h> 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/genhd.h> 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/blkpg.h> 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/delay.h> 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ide.h> 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/devfs_fs_kernel.h> 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/completion.h> 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/reboot.h> 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/cdrom.h> 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/seq_file.h> 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/device.h> 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bitops.h> 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/byteorder.h> 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/irq.h> 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* default maximum number of failures */ 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IDE_DEFAULT_MAX_FAILURES 1 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR, 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE2_MAJOR, IDE3_MAJOR, 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE4_MAJOR, IDE5_MAJOR, 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE6_MAJOR, IDE7_MAJOR, 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE8_MAJOR, IDE9_MAJOR }; 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int idebus_parameter; /* holds the "idebus=" parameter */ 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int system_bus_speed; /* holds what we think is VESA/PCI bus speed */ 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int initializing; /* set while initializing built-in drivers */ 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsDECLARE_MUTEX(ide_cfg_sem); 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock); 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEPCI 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ide_scan_direction; /* THIS was formerly 2.2.x pci=reverse */ 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_IDEDMA_AUTO 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint noautodma = 0; 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint noautodma = 1; 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(noautodma); 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is declared extern in ide.h, for access by other IDE modules: 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldside_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */ 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_hwifs); 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Do not even *think* about calling this! 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void init_hwif_data(ide_hwif_t *hwif, unsigned int index) 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int unit; 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* bulk initialize hwif & drive info with zeros */ 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(hwif, 0, sizeof(ide_hwif_t)); 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* fill in any non-zero initial values */ 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->index = index; 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->major = ide_hwif_to_major[index]; 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[0] = 'i'; 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[1] = 'd'; 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[2] = 'e'; 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[3] = '0' + index; 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->bus_state = BUSSTATE_ON; 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->atapi_dma = 0; /* disable all atapi dma */ 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ultra_mask = 0x80; /* disable all ultra */ 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mwdma_mask = 0x80; /* disable all mwdma */ 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->swdma_mask = 0x80; /* disable all swdma */ 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sema_init(&hwif->gendev_rel_sem, 0); 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default_hwif_iops(hwif); 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default_hwif_transport(hwif); 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (unit = 0; unit < MAX_DRIVES; ++unit) { 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive = &hwif->drives[unit]; 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->media = ide_disk; 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->select.all = (unit<<4)|0xa0; 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->hwif = hwif; 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ctl = 0x08; 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ready_stat = READY_STAT; 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->bad_wstat = BAD_W_STAT; 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->special.b.recalibrate = 1; 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->special.b.set_geometry = 1; 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->name[0] = 'h'; 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->name[1] = 'd'; 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->name[2] = 'a' + (index * MAX_DRIVES) + unit; 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->max_failures = IDE_DEFAULT_MAX_FAILURES; 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->using_dma = 0; 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->is_flash = 0; 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->vdma = 0; 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds INIT_LIST_HEAD(&drive->list); 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sema_init(&drive->gendev_rel_sem, 0); 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void init_hwif_default(ide_hwif_t *hwif, unsigned int index) 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw_regs_t hw; 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&hw, 0, sizeof(hw_regs_t)); 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, &hwif->irq); 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&hwif->hw, &hw, sizeof(hw)); 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(hwif->io_ports, hw.io_ports, sizeof(hw.io_ports)); 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET]; 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_HD 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->io_ports[IDE_DATA_OFFSET] == HD_DATA) 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 1; /* may be overridden by ide_setup() */ 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void ide_arm_init(void); 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * init_ide_data() sets reasonable default values into all fields 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of all instances of the hwifs and drives, but only on the first call. 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Subsequent calls have no effect (they don't wipe out anything). 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine is normally called at driver initialization time, 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but may also be called MUCH earlier during kernel "command-line" 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parameter processing. As such, we cannot depend on any other parts 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of the kernel (such as memory allocation) to be functioning yet. 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is too bad, as otherwise we could dynamically allocate the 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_drive_t structs as needed, rather than always consuming memory 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for the max possible number (MAX_HWIFS * MAX_DRIVES) of them. 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: We should stuff the setup data into __init and copy the 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * relevant hwifs/allocate them properly during boot. 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAGIC_COOKIE 0x12345678 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __init init_ide_data (void) 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif; 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int index; 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static unsigned long magic_cookie = MAGIC_COOKIE; 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (magic_cookie != MAGIC_COOKIE) 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; /* already initialized */ 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds magic_cookie = 0; 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Initialise all interface structures */ 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; ++index) { 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[index]; 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_data(hwif, index); 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_default(hwif, index); 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if !defined(CONFIG_PPC32) || !defined(CONFIG_PCI) 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->irq = hwif->hw.irq = 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_default_irq(hwif->io_ports[IDE_DATA_OFFSET]); 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_IDE_ARM 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds initializing = 1; 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_arm_init(); 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds initializing = 0; 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_system_bus_speed - guess bus speed 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_system_bus_speed() returns what we think is the system VESA/PCI 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bus speed (in MHz). This is used for calculating interface PIO timings. 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The default is 40 for known PCI systems, 50 otherwise. 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The "idebus=xx" parameter can be used to override this value. 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The actual value to be used is computed/displayed the first time 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * through. Drivers should only use this as a last resort. 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns a guessed speed in MHz. 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ide_system_bus_speed(void) 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static struct pci_device_id pci_default[] = { 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { PCI_DEVICE(PCI_ANY_ID, PCI_ANY_ID) }, 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { } 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }; 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define pci_default 0 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PCI */ 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!system_bus_speed) { 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (idebus_parameter) { 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* user supplied value */ 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds system_bus_speed = idebus_parameter; 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (pci_dev_present(pci_default)) { 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* safe default value for PCI */ 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds system_bus_speed = 33; 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* safe default value for VESA and PCI */ 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds system_bus_speed = 50; 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "ide: Assuming %dMHz system bus speed " 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "for PIO modes%s\n", system_bus_speed, 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds idebus_parameter ? "" : "; override with idebus=xx"); 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return system_bus_speed; 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PROC_FS 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct proc_dir_entry *proc_ide_root; 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct resource* hwif_request_region(ide_hwif_t *hwif, 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long addr, int num) 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct resource *res = request_region(addr, num, hwif->name); 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!res) 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name, addr, addr+num-1); 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return res; 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_request_regions - request resources for IDE 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hwif: interface to use 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Requests all the needed resources for an interface. 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Right now core IDE code does this work which is deeply wrong. 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MMIO leaves it to the controller driver, 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PIO will migrate this way over time. 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ide_hwif_request_regions(ide_hwif_t *hwif) 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long addr; 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int i; 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->mmio == 2) 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(hwif->mmio == 1); 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[IDE_CONTROL_OFFSET]; 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (addr && !hwif_request_region(hwif, addr, 1)) 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto control_region_busy; 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->straight8 = 0; 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[IDE_DATA_OFFSET]; 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((addr | 7) == hwif->io_ports[IDE_STATUS_OFFSET]) { 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hwif_request_region(hwif, addr, 8)) 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto data_region_busy; 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->straight8 = 1; 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) { 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[i]; 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hwif_request_region(hwif, addr, 1)) { 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (--i) 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(addr, 1); 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto data_region_busy; 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdata_region_busy: 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[IDE_CONTROL_OFFSET]; 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (addr) 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(addr, 1); 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldscontrol_region_busy: 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* If any errors are return, we drop the hwif interface. */ 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_release_regions - free IDE resources 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note that we only release the standard ports, 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and do not even try to handle any extra ports 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * allocated for weird IDE interface chipsets. 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note also that we don't yet handle mmio resources here. More 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * importantly our caller should be doing this so we need to 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * restructure this as a helper function for drivers. 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ide_hwif_release_regions(ide_hwif_t *hwif) 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 i = 0; 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->mmio == 2) 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->io_ports[IDE_CONTROL_OFFSET]) 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(hwif->io_ports[IDE_CONTROL_OFFSET], 1); 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->straight8) { 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(hwif->io_ports[IDE_DATA_OFFSET], 8); 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->io_ports[i]) 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(hwif->io_ports[i], 1); 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_restore - restore hwif to template 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hwif: hwif to update 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @tmp_hwif: template 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Restore hwif to a previous state by copying most settngs 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * from the template. 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif) 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hwgroup = tmp_hwif->hwgroup; 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->gendev.parent = tmp_hwif->gendev.parent; 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->proc = tmp_hwif->proc; 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->major = tmp_hwif->major; 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->straight8 = tmp_hwif->straight8; 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->bus_state = tmp_hwif->bus_state; 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->atapi_dma = tmp_hwif->atapi_dma; 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ultra_mask = tmp_hwif->ultra_mask; 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mwdma_mask = tmp_hwif->mwdma_mask; 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->swdma_mask = tmp_hwif->swdma_mask; 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = tmp_hwif->chipset; 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hold = tmp_hwif->hold; 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEPCI 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->pci_dev = tmp_hwif->pci_dev; 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->cds = tmp_hwif->cds; 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->tuneproc = tmp_hwif->tuneproc; 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->speedproc = tmp_hwif->speedproc; 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->selectproc = tmp_hwif->selectproc; 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->reset_poll = tmp_hwif->reset_poll; 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->pre_reset = tmp_hwif->pre_reset; 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->resetproc = tmp_hwif->resetproc; 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->intrproc = tmp_hwif->intrproc; 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->maskproc = tmp_hwif->maskproc; 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->quirkproc = tmp_hwif->quirkproc; 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->busproc = tmp_hwif->busproc; 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ata_input_data = tmp_hwif->ata_input_data; 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ata_output_data = tmp_hwif->ata_output_data; 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->atapi_input_bytes = tmp_hwif->atapi_input_bytes; 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->atapi_output_bytes = tmp_hwif->atapi_output_bytes; 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_setup = tmp_hwif->dma_setup; 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_exec_cmd = tmp_hwif->dma_exec_cmd; 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_start = tmp_hwif->dma_start; 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_end = tmp_hwif->ide_dma_end; 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_check = tmp_hwif->ide_dma_check; 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_on = tmp_hwif->ide_dma_on; 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_off_quietly = tmp_hwif->ide_dma_off_quietly; 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_test_irq = tmp_hwif->ide_dma_test_irq; 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_host_on = tmp_hwif->ide_dma_host_on; 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_host_off = tmp_hwif->ide_dma_host_off; 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_lostirq = tmp_hwif->ide_dma_lostirq; 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_timeout = tmp_hwif->ide_dma_timeout; 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTB = tmp_hwif->OUTB; 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTBSYNC = tmp_hwif->OUTBSYNC; 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTW = tmp_hwif->OUTW; 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTL = tmp_hwif->OUTL; 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTSW = tmp_hwif->OUTSW; 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTSL = tmp_hwif->OUTSL; 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INB = tmp_hwif->INB; 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INW = tmp_hwif->INW; 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INL = tmp_hwif->INL; 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INSW = tmp_hwif->INSW; 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INSL = tmp_hwif->INSL; 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->sg_max_nents = tmp_hwif->sg_max_nents; 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mmio = tmp_hwif->mmio; 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->rqsize = tmp_hwif->rqsize; 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->no_lba48 = tmp_hwif->no_lba48; 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef CONFIG_BLK_DEV_IDECS 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->irq = tmp_hwif->irq; 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_base = tmp_hwif->dma_base; 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_master = tmp_hwif->dma_master; 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_command = tmp_hwif->dma_command; 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor1 = tmp_hwif->dma_vendor1; 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_status = tmp_hwif->dma_status; 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor3 = tmp_hwif->dma_vendor3; 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_prdtable = tmp_hwif->dma_prdtable; 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_extra = tmp_hwif->dma_extra; 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->config_data = tmp_hwif->config_data; 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->select_data = tmp_hwif->select_data; 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->autodma = tmp_hwif->autodma; 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->udma_four = tmp_hwif->udma_four; 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->no_dsc = tmp_hwif->no_dsc; 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hwif_data = tmp_hwif->hwif_data; 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_unregister - free an ide interface 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @index: index of interface (will change soon to a pointer) 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Perform the final unregister of an IDE interface. At the moment 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we don't refcount interfaces so this will also get split up. 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Locking: 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The caller must not hold the IDE locks 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The drive present/vanishing is not yet properly locked 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Take care with the callbacks. These have been split to avoid 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * deadlocking the IDE layer. The shutdown callback is called 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * before we take the lock and free resources. It is up to the 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * caller to be sure there is no pending I/O here, and that 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the interfce will not be reopened (present/vanishing locking 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * isnt yet done btw). After we commit to the final kill we 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * call the cleanup callback with the ide locks held. 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Unregister restores the hwif structures to the default state. 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is raving bonkers. 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ide_unregister(unsigned int index) 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive; 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif, *g; 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static ide_hwif_t tmp_hwif; /* protected by ide_cfg_sem */ 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwgroup_t *hwgroup; 5838604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz int irq_count = 0, unit; 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(index >= MAX_HWIFS); 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(in_interrupt()); 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(irqs_disabled()); 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds down(&ide_cfg_sem); 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[index]; 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hwif->present) 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto abort; 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (unit = 0; unit < MAX_DRIVES; ++unit) { 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive = &hwif->drives[unit]; 5968604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz if (!drive->present) { 5978604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz if (drive->devfs_name[0] != '\0') { 5988604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz devfs_remove(drive->devfs_name); 5998604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz drive->devfs_name[0] = '\0'; 6008604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz } 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 6028604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz } 6038604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 6048604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz device_unregister(&drive->gendev); 6058604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz down(&drive->gendev_rel_sem); 6068604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz spin_lock_irq(&ide_lock); 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->present = 0; 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds destroy_proc_ide_interface(hwif); 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwgroup = hwif->hwgroup; 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * free the irq if we were the only hwif using it 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g = hwgroup->hwif; 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (g->irq == hwif->irq) 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ++irq_count; 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g = g->next; 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (g != hwgroup->hwif); 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (irq_count == 1) 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_irq(hwif->irq, hwgroup); 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note that we only release the standard ports, 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and do not even try to handle any extra ports 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * allocated for weird IDE interface chipsets. 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_release_regions(hwif); 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Remove us from the hwgroup, and free 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the hwgroup if we were the only member 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->next == hwif) { 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(hwgroup->hwif != hwif); 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(hwgroup); 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* There is another interface in hwgroup. 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Unlink us, and set hwgroup->drive and ->hwif to 6451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * something sane. 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g = hwgroup->hwif; 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (g->next != hwif) 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g = g->next; 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g->next = hwif->next; 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwgroup->hwif == hwif) { 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Chose a random hwif for hwgroup->hwif. 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * It's guaranteed that there are no drives 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * left in the hwgroup. 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(hwgroup->drive != NULL); 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwgroup->hwif = g; 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(hwgroup->hwif == hwif); 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* More messed up locking ... */ 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_unregister(&hwif->gendev); 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds down(&hwif->gendev_rel_sem); 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Remove us from the kernel's knowledge 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<<PARTN_BITS); 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(hwif->sg_table); 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unregister_blkdev(hwif->major, hwif->name); 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->dma_base) { 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) ide_release_dma(hwif); 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_base = 0; 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_master = 0; 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_command = 0; 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor1 = 0; 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_status = 0; 6831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor3 = 0; 6841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_prdtable = 0; 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* copy original settings */ 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp_hwif = *hwif; 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* restore hwif data to pristine status */ 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_data(hwif, index); 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_default(hwif, index); 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_restore(hwif, &tmp_hwif); 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsabort: 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up(&ide_cfg_sem); 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_unregister); 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_setup_ports - set up IDE interface ports 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hw: register descriptions 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @base: base register 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @offsets: table of register offsets 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @ctrl: control register 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @ack_irq: IRQ ack 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @irq: interrupt lie 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup hw_regs_t structure described by parameters. You 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * may set up the hw structure yourself OR use this routine to 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * do it for you. This is basically a helper 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ide_setup_ports ( hw_regs_t *hw, 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long base, int *offsets, 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long ctrl, unsigned long intr, 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_ack_intr_t *ack_intr, 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_io_ops_t *iops, 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int irq) 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < IDE_NR_PORTS; i++) { 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (offsets[i] == -1) { 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch(i) { 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IDE_CONTROL_OFFSET: 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->io_ports[i] = ctrl; 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(CONFIG_AMIGA) || defined(CONFIG_MAC) 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IDE_IRQ_OFFSET: 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->io_ports[i] = intr; 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* (CONFIG_AMIGA) || (CONFIG_MAC) */ 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->io_ports[i] = 0; 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->io_ports[i] = base + offsets[i]; 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->irq = irq; 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->dma = NO_DMA; 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->ack_intr = ack_intr; 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * hw->iops = iops; 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_register_hw_with_fixup - register IDE interface 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hw: hardware registers 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hwifp: pointer to returned hwif 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @fixup: fixup function 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Register an IDE interface, specifying exactly the registers etc. 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set init=1 iff calling before probes have taken place. 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns -1 on error. 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ide_register_hw_with_fixup(hw_regs_t *hw, ide_hwif_t **hwifp, void(*fixup)(ide_hwif_t *hwif)) 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index, retry = 1; 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif; 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; ++index) { 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[index]; 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->hw.io_ports[IDE_DATA_OFFSET] == hw->io_ports[IDE_DATA_OFFSET]) 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto found; 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; ++index) { 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[index]; 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->hold) 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((!hwif->present && !hwif->mate && !initializing) || 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (!hwif->hw.io_ports[IDE_DATA_OFFSET] && initializing)) 7861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto found; 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; index++) 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_unregister(index); 7901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (retry--); 7911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 7921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfound: 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->present) 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_unregister(index); 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (!hwif->hold) { 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_data(hwif, index); 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_default(hwif, index); 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->present) 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&hwif->hw, hw, sizeof(*hw)); 8021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports)); 8031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->irq = hw->irq; 8041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = hw->chipset; 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!initializing) { 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_hwif_init_with_fixup(hwif, fixup); 8091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds create_proc_ide_interfaces(); 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 8111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwifp) 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *hwifp = hwif; 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (initializing || hwif->present) ? index : -1; 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_register_hw_with_fixup); 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ide_register_hw(hw_regs_t *hw, ide_hwif_t **hwifp) 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_register_hw_with_fixup(hw, hwifp, NULL); 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_register_hw); 8261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Locks for IDE setting functionality 8291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsDECLARE_MUTEX(ide_setting_sem); 8321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 8341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * __ide_add_setting - add an ide setting option 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @drive: drive to use 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @name: setting name 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @rw: true if the function is read write 8381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @read_ioctl: function to call on read 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @write_ioctl: function to call on write 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @data_type: type of data 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @min: range minimum 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @max: range maximum 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @mul_factor: multiplication scale 8441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @div_factor: divison scale 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @data: private data field 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @set: setting 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @auto_remove: setting auto removal flag 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 8491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Removes the setting named from the device if it is present. 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The function takes the settings_lock to protect against 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parallel changes. This function must not be called from IRQ 8521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * context. Returns 0 on success or -1 on failure. 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * BUGS: This code is seriously over-engineered. There is also 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * magic about how the driver specific features are setup. If 8561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a driver is attached we assume the driver settings are auto 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * remove. 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic 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) 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_settings_t **p = (ide_settings_t **) &drive->settings, *setting = NULL; 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds down(&ide_setting_sem); 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((*p) && strcmp((*p)->name, name) < 0) 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p = &((*p)->next); 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((setting = kmalloc(sizeof(*setting), GFP_KERNEL)) == NULL) 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto abort; 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(setting, 0, sizeof(*setting)); 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((setting->name = kmalloc(strlen(name) + 1, GFP_KERNEL)) == NULL) 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto abort; 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strcpy(setting->name, name); 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setting->rw = rw; 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setting->read_ioctl = read_ioctl; 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setting->write_ioctl = write_ioctl; 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setting->data_type = data_type; 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setting->min = min; 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setting->max = max; 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setting->mul_factor = mul_factor; 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setting->div_factor = div_factor; 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setting->data = data; 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setting->set = set; 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setting->next = *p; 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (auto_remove) 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setting->auto_remove = 1; 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *p = setting; 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up(&ide_setting_sem); 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsabort: 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up(&ide_setting_sem); 8921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (setting) 8931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(setting); 8941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint 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) 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return __ide_add_setting(drive, name, rw, read_ioctl, write_ioctl, data_type, min, max, mul_factor, div_factor, data, set, 1); 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_add_setting); 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * __ide_remove_setting - remove an ide setting option 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @drive: drive to use 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @name: setting name 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Removes the setting named from the device if it is present. 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The caller must hold the setting semaphore. 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __ide_remove_setting (ide_drive_t *drive, char *name) 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_settings_t **p, *setting; 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p = (ide_settings_t **) &drive->settings; 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((*p) && strcmp((*p)->name, name)) 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p = &((*p)->next); 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((setting = (*p)) == NULL) 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (*p) = setting->next; 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(setting->name); 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(setting); 9281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_find_setting_by_ioctl - find a drive specific ioctl 9321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @drive: drive to scan 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @cmd: ioctl command to handle 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Scan's the device setting table for a matching entry and returns 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this or NULL if no entry is found. The caller must hold the 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * setting semaphore 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic ide_settings_t *ide_find_setting_by_ioctl (ide_drive_t *drive, int cmd) 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_settings_t *setting = drive->settings; 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (setting) { 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (setting->read_ioctl == cmd || setting->write_ioctl == cmd) 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setting = setting->next; 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return setting; 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_find_setting_by_name - find a drive specific setting 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @drive: drive to scan 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @name: setting name 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Scan's the device setting table for a matching entry and returns 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * this or NULL if no entry is found. The caller must hold the 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * setting semaphore 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldside_settings_t *ide_find_setting_by_name (ide_drive_t *drive, char *name) 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_settings_t *setting = drive->settings; 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (setting) { 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strcmp(setting->name, name) == 0) 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setting = setting->next; 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return setting; 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * auto_remove_settings - remove driver specific settings 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @drive: drive 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Automatically remove all the driver specific settings for this 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * drive. This function may sleep and must not be called from IRQ 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * context. The caller must hold ide_setting_sem. 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void auto_remove_settings (ide_drive_t *drive) 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_settings_t *setting; 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsrepeat: 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setting = drive->settings; 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (setting) { 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (setting->auto_remove) { 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __ide_remove_setting(drive, setting->name); 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto repeat; 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds setting = setting->next; 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_read_setting - read an IDE setting 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @drive: drive to read from 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @setting: drive setting 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Read a drive setting and return the value. The caller 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * must hold the ide_setting_sem when making this call. 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * BUGS: the data return and error are the same return value 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * so an error -EINVAL and true return of the same value cannot 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * be told apart 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ide_read_setting (ide_drive_t *drive, ide_settings_t *setting) 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int val = -EINVAL; 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((setting->rw & SETTING_READ)) { 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&ide_lock, flags); 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch(setting->data_type) { 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TYPE_BYTE: 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = *((u8 *) setting->data); 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TYPE_SHORT: 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = *((u16 *) setting->data); 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TYPE_INT: 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TYPE_INTA: 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds val = *((u32 *) setting->data); 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&ide_lock, flags); 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return val; 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_spin_wait_hwgroup - wait for group 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @drive: drive in the group 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Wait for an IDE device group to go non busy and then return 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * holding the ide_lock which guards the hwgroup->busy status 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and right to use it. 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ide_spin_wait_hwgroup (ide_drive_t *drive) 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwgroup_t *hwgroup = HWGROUP(drive); 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long timeout = jiffies + (3 * HZ); 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (hwgroup->busy) { 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long lflags; 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_set(lflags); 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (time_after(jiffies, timeout)) { 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_restore(lflags); 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "%s: channel busy\n", drive->name); 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_restore(lflags); 10611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_spin_wait_hwgroup); 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_write_setting - read an IDE setting 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @drive: drive to read from 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @setting: drive setting 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @val: value 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Write a drive setting if it is possible. The caller 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * must hold the ide_setting_sem when making this call. 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * BUGS: the data return and error are the same return value 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * so an error -EINVAL and true return of the same value cannot 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * be told apart 10801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: This should be changed to enqueue a special request 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to the driver to change settings, and then wait on a sema for completion. 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The current scheme of polling is kludgy, though safe enough. 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ide_write_setting (ide_drive_t *drive, ide_settings_t *setting, int val) 10871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 *p; 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(setting->rw & SETTING_WRITE)) 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (val < setting->min || val > setting->max) 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 10971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (setting->set) 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return setting->set(drive, val); 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ide_spin_wait_hwgroup(drive)) 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (setting->data_type) { 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TYPE_BYTE: 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *((u8 *) setting->data) = val; 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TYPE_SHORT: 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *((u16 *) setting->data) = val; 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TYPE_INT: 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *((u32 *) setting->data) = val; 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case TYPE_INTA: 11121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds p = (u32 *) setting->data; 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 1 << PARTN_BITS; i++, p++) 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *p = val; 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int set_io_32bit(ide_drive_t *drive, int arg) 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->io_32bit = arg; 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_DTC2278 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (HWIF(drive)->chipset == ide_dtc2278) 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds HWIF(drive)->drives[!drive->select.b.unit].io_32bit = arg; 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_DTC2278 */ 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int set_using_dma (ide_drive_t *drive, int arg) 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEDMA 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!drive->id || !(drive->id->capability & 1)) 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (HWIF(drive)->ide_dma_check == NULL) 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (arg) { 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (HWIF(drive)->ide_dma_check(drive)) return -EIO; 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (HWIF(drive)->ide_dma_on(drive)) return -EIO; 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (__ide_dma_off(drive)) 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EIO; 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int set_pio_mode (ide_drive_t *drive, int arg) 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request rq; 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!HWIF(drive)->tuneproc) 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOSYS; 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (drive->special.b.set_tune) 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_drive_cmd(&rq); 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->tune_req = (u8) arg; 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->special.b.set_tune = 1; 11621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) ide_do_drive_cmd(drive, &rq, ide_wait); 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int set_xfer_rate (ide_drive_t *drive, int arg) 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err = ide_wait_cmd(drive, 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds WIN_SETFEATURES, (u8) arg, 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds SETFEATURES_XFER, 0, NULL); 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!err && arg) { 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_set_xfer_rate(drive, (u8) arg); 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_driveid_update(drive); 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_add_generic_settings - generic ide settings 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @drive: drive being configured 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Add the generic parts of the system settings to the /proc files and 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ioctls for this IDE device. The caller must not be holding the 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_setting_sem. 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ide_add_generic_settings (ide_drive_t *drive) 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * drive setting name read/write access read ioctl write ioctl data type min max mul_factor div_factor data pointer set function 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __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); 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __ide_add_setting(drive, "keepsettings", SETTING_RW, HDIO_GET_KEEPSETTINGS, HDIO_SET_KEEPSETTINGS, TYPE_BYTE, 0, 1, 1, 1, &drive->keep_settings, NULL, 0); 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __ide_add_setting(drive, "nice1", SETTING_RW, -1, -1, TYPE_BYTE, 0, 1, 1, 1, &drive->nice1, NULL, 0); 11961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __ide_add_setting(drive, "pio_mode", SETTING_WRITE, -1, HDIO_SET_PIO_MODE, TYPE_BYTE, 0, 255, 1, 1, NULL, set_pio_mode, 0); 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __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); 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __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); 11991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __ide_add_setting(drive, "init_speed", SETTING_RW, -1, -1, TYPE_BYTE, 0, 70, 1, 1, &drive->init_speed, NULL, 0); 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __ide_add_setting(drive, "current_speed", SETTING_RW, -1, -1, TYPE_BYTE, 0, 70, 1, 1, &drive->current_speed, set_xfer_rate, 0); 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __ide_add_setting(drive, "number", SETTING_RW, -1, -1, TYPE_BYTE, 0, 3, 1, 1, &drive->dn, NULL, 0); 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 12051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * system_bus_clock - clock guess 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * External version of the bus clock guess used by very old IDE drivers 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for things like VLB timings. Should not be used. 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint system_bus_clock (void) 12121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return((int) ((!system_bus_speed) ? ide_system_bus_speed() : system_bus_speed )); 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(system_bus_clock); 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int generic_ide_suspend(struct device *dev, pm_message_t state) 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive = dev->driver_data; 12211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request rq; 12221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request_pm_state rqpm; 12231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_task_t args; 12241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rq, 0, sizeof(rq)); 12261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rqpm, 0, sizeof(rqpm)); 12271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&args, 0, sizeof(args)); 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rq.flags = REQ_PM_SUSPEND; 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rq.special = &args; 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rq.pm = &rqpm; 12311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rqpm.pm_step = ide_pm_state_start_suspend; 12321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rqpm.pm_state = state; 12331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_do_drive_cmd(drive, &rq, ide_wait); 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int generic_ide_resume(struct device *dev) 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive = dev->driver_data; 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request rq; 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request_pm_state rqpm; 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_task_t args; 12431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rq, 0, sizeof(rq)); 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rqpm, 0, sizeof(rqpm)); 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&args, 0, sizeof(args)); 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rq.flags = REQ_PM_RESUME; 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rq.special = &args; 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rq.pm = &rqpm; 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rqpm.pm_step = ide_pm_state_start_resume; 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rqpm.pm_state = 0; 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_do_drive_cmd(drive, &rq, ide_head_wait); 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device *bdev, 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int cmd, unsigned long arg) 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_settings_t *setting; 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_driver_t *drv; 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err = 0; 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __user *p = (void __user *)arg; 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds down(&ide_setting_sem); 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((setting = ide_find_setting_by_ioctl(drive, cmd)) != NULL) { 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (cmd == setting->read_ioctl) { 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = ide_read_setting(drive, setting); 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up(&ide_setting_sem); 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err >= 0 ? put_user(err, (long __user *)arg) : err; 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bdev != bdev->bd_contains) 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = -EINVAL; 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = ide_write_setting(drive, setting, arg); 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up(&ide_setting_sem); 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up(&ide_setting_sem); 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_GETGEO: 12831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct hd_geometry geom; 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!p || (drive->media != ide_disk && drive->media != ide_floppy)) return -EINVAL; 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds geom.heads = drive->bios_head; 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds geom.sectors = drive->bios_sect; 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds geom.cylinders = (u16)drive->bios_cyl; /* truncate */ 12891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds geom.start = get_start_sect(bdev); 12901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_to_user(p, &geom, sizeof(struct hd_geometry))) 12911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 12931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_OBSOLETE_IDENTITY: 12961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_GET_IDENTITY: 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bdev != bdev->bd_contains) 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 12991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (drive->id_read == 0) 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMSG; 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_to_user(p, drive->id, (cmd == HDIO_GET_IDENTITY) ? sizeof(*drive->id) : 142)) 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_GET_NICE: 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return put_user(drive->dsc_overlap << IDE_NICE_DSC_OVERLAP | 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->atapi_overlap << IDE_NICE_ATAPI_OVERLAP | 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->nice0 << IDE_NICE_0 | 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->nice1 << IDE_NICE_1 | 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->nice2 << IDE_NICE_2, 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (long __user *) arg); 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_IDE_TASK_IOCTL 13141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_TASKFILE: 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch(drive->media) { 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case ide_disk: 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_taskfile_ioctl(drive, cmd, arg); 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMSG; 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_IDE_TASK_IOCTL */ 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_CMD: 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_cmd_ioctl(drive, cmd, arg); 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_TASK: 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_task_ioctl(drive, cmd, arg); 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_SCAN_HWIF: 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw_regs_t hw; 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int args[3]; 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) return -EACCES; 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_from_user(args, p, 3 * sizeof(int))) 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&hw, 0, sizeof(hw)); 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_hwif_ports(&hw, (unsigned long) args[0], 13441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (unsigned long) args[1], NULL); 13451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw.irq = args[2]; 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ide_register_hw(&hw, NULL) == -1) 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EIO; 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_UNREGISTER_HWIF: 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) return -EACCES; 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* (arg > MAX_HWIFS) checked in function */ 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_unregister(arg); 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_SET_NICE: 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) return -EACCES; 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (arg != (arg & ((1 << IDE_NICE_DSC_OVERLAP) | (1 << IDE_NICE_1)))) 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->dsc_overlap = (arg >> IDE_NICE_DSC_OVERLAP) & 1; 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drv = *(ide_driver_t **)bdev->bd_disk->private_data; 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (drive->dsc_overlap && !drv->supports_dsc_overlap) { 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->dsc_overlap = 0; 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->nice1 = (arg >> IDE_NICE_1) & 1; 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_RESET: 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) return -EACCES; 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Abort the current command on the 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * group if there is one, taking 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * care not to allow anything else 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to be queued and to die on the 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * spot if we miss one somehow 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&ide_lock, flags); 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_abort(drive, "drive reset"); 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(HWGROUP(drive)->handler) 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG(); 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Ensure nothing gets queued after we 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drop the lock. Reset will clear the busy */ 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds HWGROUP(drive)->busy = 1; 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&ide_lock, flags); 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) ide_do_reset(drive); 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case CDROMEJECT: 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case CDROMCLOSETRAY: 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return scsi_cmd_ioctl(file, bdev->bd_disk, cmd, p); 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_GET_BUSSTATE: 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (put_user(HWIF(drive)->bus_state, (long __user *)arg)) 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_SET_BUSSTATE: 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (HWIF(drive)->busproc) 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return HWIF(drive)->busproc(drive, (int)arg); 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EOPNOTSUPP; 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(generic_ide_ioctl); 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * stridx() returns the offset of c within s, 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or -1 if c is '\0' or not found within s. 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init stridx (const char *s, char c) 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *i = strchr(s, c); 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (i && c) ? i - s : -1; 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * match_parm() does parsing for ide_setup(): 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1. the first char of s must be '='. 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2. if the remainder matches one of the supplied keywords, 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the index (1 based) of the keyword is negated and returned. 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3. if the remainder is a series of no more than max_vals numbers 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * separated by commas, the numbers are saved in vals[] and a 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * count of how many were saved is returned. Base10 is assumed, 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and base16 is allowed when prefixed with "0x". 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4. otherwise, zero is returned. 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init match_parm (char *s, const char *keywords[], int vals[], int max_vals) 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static const char *decimal = "0123456789"; 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static const char *hex = "0123456789abcdef"; 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, n; 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (*s++ == '=') { 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Try matching against the supplied keywords, 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and return -(index+1) if we match one 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (keywords != NULL) { 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; *keywords != NULL; ++i) { 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, *keywords++)) 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -(i+1); 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for a series of no more than "max_vals" 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * numeric values separated by commas, in base10, 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or base16 when prefixed with "0x". 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Return a count of how many were found. 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (n = 0; (i = stridx(decimal, *s)) >= 0;) { 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[n] = i; 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((i = stridx(decimal, *++s)) >= 0) 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[n] = (vals[n] * 10) + i; 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (*s == 'x' && !vals[n]) { 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((i = stridx(hex, *++s)) >= 0) 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[n] = (vals[n] * 0x10) + i; 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++n == max_vals) 14751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 14761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (*s == ',' || *s == ';') 14771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ++s; 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!*s) 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return n; 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* zero = nothing matched */ 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_ALI14XX 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __initdata probe_ali14xx; 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int ali14xx_init(void); 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_UMC8672 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __initdata probe_umc8672; 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int umc8672_init(void); 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_DTC2278 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __initdata probe_dtc2278; 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int dtc2278_init(void); 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_HT6560B 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __initdata probe_ht6560b; 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int ht6560b_init(void); 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_QD65XX 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __initdata probe_qd65xx; 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int qd65xx_init(void); 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __initdata is_chipset_set[MAX_HWIFS]; 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_setup() gets called VERY EARLY during initialization, 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to handle kernel "command line" strings beginning with "hdx=" or "ide". 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Remember to update Documentation/ide.txt if you change something here. 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init ide_setup(char *s) 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, vals[3]; 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif; 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive; 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int hw, unit; 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char max_drive = 'a' + ((MAX_HWIFS * MAX_DRIVES) - 1); 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char max_hwif = '0' + (MAX_HWIFS - 1); 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(s,"hd",2) == 0 && s[2] == '=') /* hd= is for hd.c */ 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* driver and not us */ 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(s,"ide",3) && strncmp(s,"idebus",6) && strncmp(s,"hd",2)) 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "ide_setup: %s", s); 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_ide_data (); 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEDOUBLER 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, "ide=doubler")) { 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern int ide_doubler; 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" : Enabled support for IDE doublers\n"); 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_doubler = 1; 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_IDEDOUBLER */ 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, "ide=nodma")) { 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" : Prevented DMA\n"); 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds noautodma = 1; 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEPCI 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, "ide=reverse")) { 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_scan_direction = 1; 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" : Enabled support for IDE inverse scan order.\n"); 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_IDEPCI */ 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for drive options: "hdx=" 15591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[0] == 'h' && s[1] == 'd' && s[2] >= 'a' && s[2] <= max_drive) { 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *hd_words[] = { 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "none", "noprobe", "nowerr", "cdrom", "serialize", 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "autotune", "noautotune", "minus8", "swapdata", "bswap", 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "minus11", "remap", "remap63", "scsi", NULL }; 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit = s[2] - 'a'; 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw = unit / MAX_DRIVES; 15671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit = unit % MAX_DRIVES; 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[hw]; 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive = &hwif->drives[unit]; 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(s + 4, "ide-", 4) == 0) { 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(drive->driver_req, s + 4, sizeof(drive->driver_req)); 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (match_parm(&s[3], hd_words, vals, 3)) { 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -1: /* "none" */ 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -2: /* "noprobe" */ 15771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->noprobe = 1; 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -3: /* "nowerr" */ 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->bad_wstat = BAD_R_STAT; 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -4: /* "cdrom" */ 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->present = 1; 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->media = ide_cdrom; 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* an ATAPI device ignores DRDY */ 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ready_stat = 0; 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -5: /* "serialize" */ 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- USE \"ide%d=serialize\" INSTEAD", hw); 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto do_serialize; 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -6: /* "autotune" */ 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->autotune = IDE_TUNE_AUTO; 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -7: /* "noautotune" */ 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->autotune = IDE_TUNE_NOAUTO; 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 15991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -9: /* "swapdata" */ 16001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -10: /* "bswap" */ 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->bswap = 1; 16021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -12: /* "remap" */ 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->remap_0_to_1 = 1; 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -13: /* "remap63" */ 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->sect0 = 63; 16081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -14: /* "scsi" */ 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->scsi = 1; 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 3: /* cyl,head,sect */ 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->media = ide_disk; 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ready_stat = READY_STAT; 16151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->cyl = drive->bios_cyl = vals[0]; 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->head = drive->bios_head = vals[1]; 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->sect = drive->bios_sect = vals[2]; 16181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->present = 1; 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->forced_geom = 1; 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 16211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[0] != 'i' || s[1] != 'd' || s[2] != 'e') 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for bus speed option: "idebus=" 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[3] == 'b' && s[4] == 'u' && s[5] == 's') { 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (match_parm(&s[6], NULL, vals, 1) != 1) 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (vals[0] >= 20 && vals[0] <= 66) { 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds idebus_parameter = vals[0]; 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- BAD BUS SPEED! Expected value from 20 to 66"); 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for interface options: "idex=" 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[3] >= '0' && s[3] <= max_hwif) { 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Be VERY CAREFUL changing this: note hardcoded indexes below 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (-8, -9, -10) are reserved to ease the hardcoding. 16481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static const char *ide_words[] = { 16501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "noprobe", "serialize", "autotune", "noautotune", 16511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "reset", "dma", "ata66", "minus8", "minus9", 16521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "minus10", "four", "qd65xx", "ht6560b", "cmd640_vlb", 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "dtc2278", "umc8672", "ali14xx", NULL }; 16541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw = s[3] - '0'; 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[hw]; 16561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = match_parm(&s[4], ide_words, vals, 3); 16571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Cryptic check to ensure chipset not already set for hwif. 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: we can't depend on hwif->chipset here. 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((i >= -18 && i <= -11) || (i > 0 && i <= 3)) { 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* chipset already specified */ 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (is_chipset_set[hw]) 16651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i > -18 && i <= -11) { 16671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* these drivers are for "ide0=" only */ 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hw != 0) 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_hwif; 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* chipset already specified for 2nd port */ 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (is_chipset_set[hw+1]) 16721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds is_chipset_set[hw] = 1; 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("\n"); 16761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (i) { 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_ALI14XX 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -17: /* "ali14xx" */ 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_ali14xx = 1; 16821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 16831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_UMC8672 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -16: /* "umc8672" */ 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_umc8672 = 1; 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_DTC2278 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -15: /* "dtc2278" */ 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_dtc2278 = 1; 16921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_CMD640 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -14: /* "cmd640_vlb" */ 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern int cmd640_vlb; /* flag for cmd640.c */ 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd640_vlb = 1; 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_HT6560B 17031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -13: /* "ht6560b" */ 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_ht6560b = 1; 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 17061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_QD65XX 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -12: /* "qd65xx" */ 17091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_qd65xx = 1; 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_4DRIVES 17131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -11: /* "four" drives on one set of ports */ 17141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 17151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *mate = &ide_hwifs[hw^1]; 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mate->drives[0].select.all ^= 0x20; 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mate->drives[1].select.all ^= 0x20; 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = mate->chipset = ide_4drives; 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mate->irq = hwif->irq; 17201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(mate->io_ports, hwif->io_ports, sizeof(hwif->io_ports)); 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto do_serialize; 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_4DRIVES */ 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -10: /* minus10 */ 17251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -9: /* minus9 */ 17261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -8: /* minus8 */ 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 17281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -7: /* ata66 */ 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEPCI 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->udma_four = 1; 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 17321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_hwif; 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -6: /* dma */ 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->autodma = 1; 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 17381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -5: /* "reset" */ 17391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->reset = 1; 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 17411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -4: /* "noautotune" */ 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->drives[0].autotune = IDE_TUNE_NOAUTO; 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->drives[1].autotune = IDE_TUNE_NOAUTO; 17441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -3: /* "autotune" */ 17461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->drives[0].autotune = IDE_TUNE_AUTO; 17471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->drives[1].autotune = IDE_TUNE_AUTO; 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -2: /* "serialize" */ 17501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do_serialize: 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mate = &ide_hwifs[hw^1]; 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mate->mate = hwif; 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->serialized = hwif->mate->serialized = 1; 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -1: /* "noprobe" */ 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 1; 17581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 1: /* base */ 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[1] = vals[0] + 0x206; /* default ctl */ 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 2: /* base,ctl */ 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[2] = 0; /* default irq = probe for it */ 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 3: /* base,ctl,irq */ 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hw.irq = vals[2]; 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_hwif_ports(&hwif->hw, (unsigned long) vals[0], (unsigned long) vals[1], &hwif->irq); 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports)); 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->irq = vals[2]; 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = ide_forced; 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0: goto bad_option; 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- SUPPORT NOT CONFIGURED IN THIS KERNEL\n"); 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsbad_option: 17801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- BAD OPTION\n"); 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsobsolete_option: 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- OBSOLETE OPTION, WILL BE REMOVED SOON!\n"); 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsbad_hwif: 17861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("-- NOT SUPPORTED ON ide%d", hw); 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdone: 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("\n"); 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void pnpide_init(void); 17931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void h8300_ide_init(void); 17941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 17961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * probe_for_hwifs() finds/initializes "known" IDE interfaces 17971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __init probe_for_hwifs (void) 17991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEPCI 18011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_scan_pcibus(ide_scan_direction); 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_IDEPCI */ 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_ETRAX_IDE 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern void init_e100_ide(void); 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_e100_ide(); 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_ETRAX_IDE */ 18101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_CMD640 18111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 18121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern void ide_probe_for_cmd640x(void); 18131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_probe_for_cmd640x(); 18141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_CMD640 */ 18161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDE_PMAC 18171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 18181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern void pmac_ide_probe(void); 18191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pmac_ide_probe(); 18201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_IDE_PMAC */ 18221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_GAYLE 18231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 18241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern void gayle_init(void); 18251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds gayle_init(); 18261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_GAYLE */ 18281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_FALCON_IDE 18291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 18301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern void falconide_init(void); 18311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds falconide_init(); 18321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_FALCON_IDE */ 18341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_MAC_IDE 18351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 18361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern void macide_init(void); 18371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds macide_init(); 18381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_MAC_IDE */ 18401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_Q40IDE 18411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 18421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern void q40ide_init(void); 18431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds q40ide_init(); 18441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_Q40IDE */ 18461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_BUDDHA 18471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 18481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern void buddha_init(void); 18491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buddha_init(); 18501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 18511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_BUDDHA */ 18521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEPNP 18531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pnpide_init(); 18541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 18551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_H8300 18561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds h8300_ide_init(); 18571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 18581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18608604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewiczvoid ide_register_subdriver(ide_drive_t *drive, ide_driver_t *driver) 18611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PROC_FS 18638604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz ide_add_proc_entries(drive->proc, driver->proc, drive); 18641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 18651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_register_subdriver); 18681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 18701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_unregister_subdriver - disconnect drive from driver 18711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @drive: drive to unplug 18728604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz * @driver: driver 18731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Disconnect a drive from the driver it was attached to and then 18751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * clean up the various proc files and other objects attached to it. 18761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 18778604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz * Takes ide_setting_sem and ide_lock. 18781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Caller must hold none of the locks. 18791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 18801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18818604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewiczvoid ide_unregister_subdriver(ide_drive_t *drive, ide_driver_t *driver) 18821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 18831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 18841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds down(&ide_setting_sem); 18861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&ide_lock, flags); 18871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PROC_FS 18888604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz ide_remove_proc_entries(drive->proc, driver->proc); 18891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 18901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds auto_remove_settings(drive); 18911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&ide_lock, flags); 18921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up(&ide_setting_sem); 18931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_unregister_subdriver); 18961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 18981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Probe module 18991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 19001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_lock); 19021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19038604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewiczstatic int ide_bus_match(struct device *dev, struct device_driver *drv) 19048604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz{ 19058604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz return 1; 19068604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz} 19078604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz 19081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct bus_type ide_bus_type = { 19091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "ide", 19108604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz .match = ide_bus_match, 19111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .suspend = generic_ide_suspend, 19121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .resume = generic_ide_resume, 19131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 19141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19158604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_bus_type); 19168604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz 19171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 19181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is gets invoked once during initialization, to set *everything* up 19191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 19201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init ide_init(void) 19211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "Uniform Multi-Platform E-IDE driver " REVISION "\n"); 19231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds devfs_mk_dir("ide"); 19241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds system_bus_speed = ide_system_bus_speed(); 19251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_register(&ide_bus_type); 19271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_ide_data(); 19291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PROC_FS 19311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds proc_ide_root = proc_mkdir("ide", NULL); 19321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 19331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_ALI14XX 19351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (probe_ali14xx) 19361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void)ali14xx_init(); 19371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 19381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_UMC8672 19391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (probe_umc8672) 19401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void)umc8672_init(); 19411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 19421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_DTC2278 19431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (probe_dtc2278) 19441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void)dtc2278_init(); 19451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 19461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_HT6560B 19471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (probe_ht6560b) 19481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void)ht6560b_init(); 19491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 19501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_QD65XX 19511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (probe_qd65xx) 19521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void)qd65xx_init(); 19531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 19541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds initializing = 1; 19561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Probe for special PCI and other "known" interface chipsets. */ 19571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_for_hwifs(); 19581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds initializing = 0; 19591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PROC_FS 19611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds proc_ide_create(); 19621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 19631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 19641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 19671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *options = NULL; 19681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(options, charp, 0); 19691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 19701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __init parse_options (char *line) 19721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *next = line; 19741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (line == NULL || !*line) 19761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 19771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((line = next) != NULL) { 19781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((next = strchr(line,' ')) != NULL) 19791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *next++ = 0; 19801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ide_setup(line)) 19811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk (KERN_INFO "Unknown option '%s'\n", line); 19821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 19831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint init_module (void) 19861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds parse_options(options); 19881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_init(); 19891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 19901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid cleanup_module (void) 19921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 19931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index; 19941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; ++index) 19961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_unregister(index); 19971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PROC_FS 19991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds proc_ide_destroy(); 20001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 20011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds devfs_remove("ide"); 20021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_unregister(&ide_bus_type); 20041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 20051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else /* !MODULE */ 20071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds__setup("", ide_setup); 20091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(ide_init); 20111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* MODULE */ 2013