ide.c revision b4e44369a380c1836d0983c2a5011099b7b26eb1
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 * ... 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * From hd.c: 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | It traverses the request-list, using interrupts to jump between functions. 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | As nearly all functions can be called within interrupts, we may not sleep. 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | Special care is recommended. Have Fun! 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | modified by Drew Eckhardt to check nr of hd's from the CMOS. 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | Thanks to Branko Lankester, lankeste@fwi.uva.nl, who found a bug 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | in the early extended-partition checks and added DM partitions. 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | Early work on error handling by Mika Liljeberg (liljeber@cs.Helsinki.FI). 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | IRQ-unmask, drive-id, multiple-mode, support for ">16 heads", 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | and general streamlining by Mark Lord (mlord@pobox.com). 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * October, 1994 -- Complete line-by-line overhaul for linux 1.1.x, by: 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mark Lord (mlord@pobox.com) (IDE Perf.Pkg) 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Delman Lee (delman@ieee.org) ("Mr. atdisk2") 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Scott Snyder (snyder@fnald0.fnal.gov) (ATAPI IDE cd-rom) 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This was a rewrite of just about everything from hd.c, though some original 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * code is still sprinkled about. Think of it as a major evolution, with 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * inspiration from lots of linux users, esp. hamish@zot.apana.org.au 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define REVISION "Revision: 7.00alpha2" 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VERSION "Id: ide.c 7.00a2 20020906" 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define _IDE_C /* Tell ide.h it's really us */ 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/timer.h> 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mm.h> 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/interrupt.h> 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/major.h> 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/genhd.h> 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/blkpg.h> 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/delay.h> 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ide.h> 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/completion.h> 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/reboot.h> 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/cdrom.h> 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/seq_file.h> 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/device.h> 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bitops.h> 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/byteorder.h> 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/irq.h> 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* default maximum number of failures */ 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IDE_DEFAULT_MAX_FAILURES 1 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR, 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE2_MAJOR, IDE3_MAJOR, 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE4_MAJOR, IDE5_MAJOR, 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE6_MAJOR, IDE7_MAJOR, 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE8_MAJOR, IDE9_MAJOR }; 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int idebus_parameter; /* holds the "idebus=" parameter */ 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int system_bus_speed; /* holds what we think is VESA/PCI bus speed */ 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 94ef29888ea8e1fdc499e995260195b66fc91d2728Matthias KaehlckeDEFINE_MUTEX(ide_cfg_mtx); 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock); 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 976d208b39c45edee5def6c201fcd51561c5a39828Bartlomiej Zolnierkiewicz#ifdef CONFIG_IDEPCI_PCIBUS_ORDER 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ide_scan_direction; /* THIS was formerly 2.2.x pci=reverse */ 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint noautodma = 0; 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(noautodma); 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 105e3a59b4d9378522479609042836ae930305a67feHannes Reinecke#ifdef CONFIG_BLK_DEV_IDEACPI 106e3a59b4d9378522479609042836ae930305a67feHannes Reineckeint ide_noacpi = 0; 107e3a59b4d9378522479609042836ae930305a67feHannes Reineckeint ide_noacpitfs = 1; 108e3a59b4d9378522479609042836ae930305a67feHannes Reineckeint ide_noacpionboot = 1; 109e3a59b4d9378522479609042836ae930305a67feHannes Reinecke#endif 110e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is declared extern in ide.h, for access by other IDE modules: 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldside_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */ 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_hwifs); 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Do not even *think* about calling this! 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void init_hwif_data(ide_hwif_t *hwif, unsigned int index) 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int unit; 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* bulk initialize hwif & drive info with zeros */ 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(hwif, 0, sizeof(ide_hwif_t)); 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* fill in any non-zero initial values */ 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->index = index; 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->major = ide_hwif_to_major[index]; 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[0] = 'i'; 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[1] = 'd'; 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[2] = 'e'; 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[3] = '0' + index; 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->bus_state = BUSSTATE_ON; 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->atapi_dma = 0; /* disable all atapi dma */ 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 141f36d4024caa3790606e43228a574157c45b73b22Aleksey Makarov init_completion(&hwif->gendev_rel_comp); 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default_hwif_iops(hwif); 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default_hwif_transport(hwif); 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (unit = 0; unit < MAX_DRIVES; ++unit) { 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive = &hwif->drives[unit]; 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->media = ide_disk; 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->select.all = (unit<<4)|0xa0; 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->hwif = hwif; 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ctl = 0x08; 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ready_stat = READY_STAT; 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->bad_wstat = BAD_W_STAT; 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->special.b.recalibrate = 1; 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->special.b.set_geometry = 1; 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->name[0] = 'h'; 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->name[1] = 'd'; 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->name[2] = 'a' + (index * MAX_DRIVES) + unit; 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->max_failures = IDE_DEFAULT_MAX_FAILURES; 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->using_dma = 0; 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->vdma = 0; 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds INIT_LIST_HEAD(&drive->list); 163f36d4024caa3790606e43228a574157c45b73b22Aleksey Makarov init_completion(&drive->gendev_rel_comp); 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void init_hwif_default(ide_hwif_t *hwif, unsigned int index) 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw_regs_t hw; 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&hw, 0, sizeof(hw_regs_t)); 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, &hwif->irq); 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&hwif->hw, &hw, sizeof(hw)); 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(hwif->io_ports, hw.io_ports, sizeof(hw.io_ports)); 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET]; 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_HD 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->io_ports[IDE_DATA_OFFSET] == HD_DATA) 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 1; /* may be overridden by ide_setup() */ 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void ide_arm_init(void); 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * init_ide_data() sets reasonable default values into all fields 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of all instances of the hwifs and drives, but only on the first call. 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Subsequent calls have no effect (they don't wipe out anything). 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine is normally called at driver initialization time, 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but may also be called MUCH earlier during kernel "command-line" 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parameter processing. As such, we cannot depend on any other parts 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of the kernel (such as memory allocation) to be functioning yet. 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is too bad, as otherwise we could dynamically allocate the 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_drive_t structs as needed, rather than always consuming memory 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for the max possible number (MAX_HWIFS * MAX_DRIVES) of them. 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: We should stuff the setup data into __init and copy the 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * relevant hwifs/allocate them properly during boot. 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAGIC_COOKIE 0x12345678 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __init init_ide_data (void) 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif; 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int index; 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static unsigned long magic_cookie = MAGIC_COOKIE; 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (magic_cookie != MAGIC_COOKIE) 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; /* already initialized */ 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds magic_cookie = 0; 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Initialise all interface structures */ 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; ++index) { 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[index]; 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_data(hwif, index); 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_default(hwif, index); 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if !defined(CONFIG_PPC32) || !defined(CONFIG_PCI) 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->irq = hwif->hw.irq = 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_default_irq(hwif->io_ports[IDE_DATA_OFFSET]); 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_IDE_ARM 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_arm_init(); 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_system_bus_speed - guess bus speed 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_system_bus_speed() returns what we think is the system VESA/PCI 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bus speed (in MHz). This is used for calculating interface PIO timings. 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The default is 40 for known PCI systems, 50 otherwise. 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The "idebus=xx" parameter can be used to override this value. 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The actual value to be used is computed/displayed the first time 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * through. Drivers should only use this as a last resort. 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns a guessed speed in MHz. 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ide_system_bus_speed(void) 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static struct pci_device_id pci_default[] = { 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { PCI_DEVICE(PCI_ANY_ID, PCI_ANY_ID) }, 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { } 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }; 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define pci_default 0 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PCI */ 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!system_bus_speed) { 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (idebus_parameter) { 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* user supplied value */ 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds system_bus_speed = idebus_parameter; 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (pci_dev_present(pci_default)) { 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* safe default value for PCI */ 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds system_bus_speed = 33; 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* safe default value for VESA and PCI */ 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds system_bus_speed = 50; 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "ide: Assuming %dMHz system bus speed " 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "for PIO modes%s\n", system_bus_speed, 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds idebus_parameter ? "" : "; override with idebus=xx"); 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return system_bus_speed; 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct resource* hwif_request_region(ide_hwif_t *hwif, 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long addr, int num) 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct resource *res = request_region(addr, num, hwif->name); 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!res) 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name, addr, addr+num-1); 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return res; 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_request_regions - request resources for IDE 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hwif: interface to use 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Requests all the needed resources for an interface. 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Right now core IDE code does this work which is deeply wrong. 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MMIO leaves it to the controller driver, 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PIO will migrate this way over time. 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ide_hwif_request_regions(ide_hwif_t *hwif) 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long addr; 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int i; 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2982ad1e558a2305c2b3d5099ee2f4a5929307c20caBartlomiej Zolnierkiewicz if (hwif->mmio) 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[IDE_CONTROL_OFFSET]; 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (addr && !hwif_request_region(hwif, addr, 1)) 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto control_region_busy; 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->straight8 = 0; 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[IDE_DATA_OFFSET]; 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((addr | 7) == hwif->io_ports[IDE_STATUS_OFFSET]) { 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hwif_request_region(hwif, addr, 8)) 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto data_region_busy; 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->straight8 = 1; 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) { 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[i]; 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hwif_request_region(hwif, addr, 1)) { 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (--i) 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(addr, 1); 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto data_region_busy; 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdata_region_busy: 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[IDE_CONTROL_OFFSET]; 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (addr) 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(addr, 1); 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldscontrol_region_busy: 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* If any errors are return, we drop the hwif interface. */ 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_release_regions - free IDE resources 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note that we only release the standard ports, 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and do not even try to handle any extra ports 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * allocated for weird IDE interface chipsets. 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note also that we don't yet handle mmio resources here. More 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * importantly our caller should be doing this so we need to 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * restructure this as a helper function for drivers. 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ide_hwif_release_regions(ide_hwif_t *hwif) 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 i = 0; 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3462ad1e558a2305c2b3d5099ee2f4a5929307c20caBartlomiej Zolnierkiewicz if (hwif->mmio) 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->io_ports[IDE_CONTROL_OFFSET]) 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(hwif->io_ports[IDE_CONTROL_OFFSET], 1); 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->straight8) { 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(hwif->io_ports[IDE_DATA_OFFSET], 8); 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->io_ports[i]) 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(hwif->io_ports[i], 1); 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_restore - restore hwif to template 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hwif: hwif to update 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @tmp_hwif: template 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 364020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov * Restore hwif to a previous state by copying most settings 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * from the template. 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif) 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hwgroup = tmp_hwif->hwgroup; 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->gendev.parent = tmp_hwif->gendev.parent; 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->proc = tmp_hwif->proc; 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->major = tmp_hwif->major; 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->straight8 = tmp_hwif->straight8; 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->bus_state = tmp_hwif->bus_state; 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3806a824c92db4d606c324272c4eed366fb71672440Bartlomiej Zolnierkiewicz hwif->host_flags = tmp_hwif->host_flags; 3816a824c92db4d606c324272c4eed366fb71672440Bartlomiej Zolnierkiewicz 3824099d14322149c7a467e4997b87be4ba8eb78697Bartlomiej Zolnierkiewicz hwif->pio_mask = tmp_hwif->pio_mask; 3834099d14322149c7a467e4997b87be4ba8eb78697Bartlomiej Zolnierkiewicz 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->atapi_dma = tmp_hwif->atapi_dma; 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ultra_mask = tmp_hwif->ultra_mask; 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mwdma_mask = tmp_hwif->mwdma_mask; 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->swdma_mask = tmp_hwif->swdma_mask; 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 38949521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz hwif->cbl = tmp_hwif->cbl; 39049521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = tmp_hwif->chipset; 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hold = tmp_hwif->hold; 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEPCI 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->pci_dev = tmp_hwif->pci_dev; 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->cds = tmp_hwif->cds; 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->tuneproc = tmp_hwif->tuneproc; 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->speedproc = tmp_hwif->speedproc; 401b4e44369a380c1836d0983c2a5011099b7b26eb1Sergei Shtylyov hwif->mdma_filter = tmp_hwif->mdma_filter; 4022d5eaa6dd744a641e75503232a01f52d0768884cBartlomiej Zolnierkiewicz hwif->udma_filter = tmp_hwif->udma_filter; 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->selectproc = tmp_hwif->selectproc; 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->reset_poll = tmp_hwif->reset_poll; 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->pre_reset = tmp_hwif->pre_reset; 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->resetproc = tmp_hwif->resetproc; 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->intrproc = tmp_hwif->intrproc; 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->maskproc = tmp_hwif->maskproc; 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->quirkproc = tmp_hwif->quirkproc; 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->busproc = tmp_hwif->busproc; 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ata_input_data = tmp_hwif->ata_input_data; 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ata_output_data = tmp_hwif->ata_output_data; 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->atapi_input_bytes = tmp_hwif->atapi_input_bytes; 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->atapi_output_bytes = tmp_hwif->atapi_output_bytes; 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_setup = tmp_hwif->dma_setup; 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_exec_cmd = tmp_hwif->dma_exec_cmd; 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_start = tmp_hwif->dma_start; 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_end = tmp_hwif->ide_dma_end; 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_check = tmp_hwif->ide_dma_check; 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_on = tmp_hwif->ide_dma_on; 4237469aaf6a30f4187ed6de7c0aed5c2dd2d1c2d31Bartlomiej Zolnierkiewicz hwif->dma_off_quietly = tmp_hwif->dma_off_quietly; 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_test_irq = tmp_hwif->ide_dma_test_irq; 425f0dd8712eb8cc5687b4582fbc41cfbcd55bba0d2Albert Lee hwif->ide_dma_clear_irq = tmp_hwif->ide_dma_clear_irq; 426ccf352894ceef79d40d015e1deee4c46c3aa42edBartlomiej Zolnierkiewicz hwif->dma_host_on = tmp_hwif->dma_host_on; 4277469aaf6a30f4187ed6de7c0aed5c2dd2d1c2d31Bartlomiej Zolnierkiewicz hwif->dma_host_off = tmp_hwif->dma_host_off; 428841d2a9bf16471716ba3a5172d24aa40a2ea9398Sergei Shtylyov hwif->dma_lost_irq = tmp_hwif->dma_lost_irq; 429c283f5dbe31920ca70b80a594a97bfaa2a28be13Sergei Shtylyov hwif->dma_timeout = tmp_hwif->dma_timeout; 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTB = tmp_hwif->OUTB; 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTBSYNC = tmp_hwif->OUTBSYNC; 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTW = tmp_hwif->OUTW; 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTSW = tmp_hwif->OUTSW; 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTSL = tmp_hwif->OUTSL; 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INB = tmp_hwif->INB; 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INW = tmp_hwif->INW; 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INSW = tmp_hwif->INSW; 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INSL = tmp_hwif->INSL; 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->sg_max_nents = tmp_hwif->sg_max_nents; 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mmio = tmp_hwif->mmio; 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->rqsize = tmp_hwif->rqsize; 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->no_lba48 = tmp_hwif->no_lba48; 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef CONFIG_BLK_DEV_IDECS 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->irq = tmp_hwif->irq; 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_base = tmp_hwif->dma_base; 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_master = tmp_hwif->dma_master; 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_command = tmp_hwif->dma_command; 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor1 = tmp_hwif->dma_vendor1; 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_status = tmp_hwif->dma_status; 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor3 = tmp_hwif->dma_vendor3; 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_prdtable = tmp_hwif->dma_prdtable; 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->config_data = tmp_hwif->config_data; 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->select_data = tmp_hwif->select_data; 462020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov hwif->extra_base = tmp_hwif->extra_base; 463020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov hwif->extra_ports = tmp_hwif->extra_ports; 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->autodma = tmp_hwif->autodma; 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hwif_data = tmp_hwif->hwif_data; 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 470020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov * ide_unregister - free an IDE interface 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @index: index of interface (will change soon to a pointer) 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Perform the final unregister of an IDE interface. At the moment 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we don't refcount interfaces so this will also get split up. 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Locking: 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The caller must not hold the IDE locks 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The drive present/vanishing is not yet properly locked 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Take care with the callbacks. These have been split to avoid 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * deadlocking the IDE layer. The shutdown callback is called 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * before we take the lock and free resources. It is up to the 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * caller to be sure there is no pending I/O here, and that 483020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov * the interface will not be reopened (present/vanishing locking 484020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov * isn't yet done BTW). After we commit to the final kill we 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * call the cleanup callback with the ide locks held. 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Unregister restores the hwif structures to the default state. 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is raving bonkers. 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ide_unregister(unsigned int index) 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive; 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif, *g; 495ef29888ea8e1fdc499e995260195b66fc91d2728Matthias Kaehlcke static ide_hwif_t tmp_hwif; /* protected by ide_cfg_mtx */ 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwgroup_t *hwgroup; 4978604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz int irq_count = 0, unit; 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(index >= MAX_HWIFS); 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(in_interrupt()); 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(irqs_disabled()); 503ef29888ea8e1fdc499e995260195b66fc91d2728Matthias Kaehlcke mutex_lock(&ide_cfg_mtx); 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[index]; 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hwif->present) 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto abort; 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (unit = 0; unit < MAX_DRIVES; ++unit) { 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive = &hwif->drives[unit]; 51094f6c59dcf16f10a20fbe3d1f098b159433f94bdGreg Kroah-Hartman if (!drive->present) 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 5128604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 5138604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz device_unregister(&drive->gendev); 514f36d4024caa3790606e43228a574157c45b73b22Aleksey Makarov wait_for_completion(&drive->gendev_rel_comp); 5158604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz spin_lock_irq(&ide_lock); 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->present = 0; 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5215cbf79cdb37be2aa2a1b4fa94144526b14557060Bartlomiej Zolnierkiewicz ide_proc_unregister_port(hwif); 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwgroup = hwif->hwgroup; 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * free the irq if we were the only hwif using it 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g = hwgroup->hwif; 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (g->irq == hwif->irq) 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ++irq_count; 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g = g->next; 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (g != hwgroup->hwif); 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (irq_count == 1) 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_irq(hwif->irq, hwgroup); 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note that we only release the standard ports, 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and do not even try to handle any extra ports 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * allocated for weird IDE interface chipsets. 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_release_regions(hwif); 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Remove us from the hwgroup, and free 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the hwgroup if we were the only member 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->next == hwif) { 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(hwgroup->hwif != hwif); 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(hwgroup); 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* There is another interface in hwgroup. 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Unlink us, and set hwgroup->drive and ->hwif to 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * something sane. 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g = hwgroup->hwif; 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (g->next != hwif) 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g = g->next; 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g->next = hwif->next; 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwgroup->hwif == hwif) { 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Chose a random hwif for hwgroup->hwif. 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * It's guaranteed that there are no drives 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * left in the hwgroup. 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(hwgroup->drive != NULL); 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwgroup->hwif = g; 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(hwgroup->hwif == hwif); 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* More messed up locking ... */ 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_unregister(&hwif->gendev); 574f36d4024caa3790606e43228a574157c45b73b22Aleksey Makarov wait_for_completion(&hwif->gendev_rel_comp); 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Remove us from the kernel's knowledge 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<<PARTN_BITS); 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(hwif->sg_table); 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unregister_blkdev(hwif->major, hwif->name); 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->dma_base) { 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) ide_release_dma(hwif); 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_base = 0; 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_master = 0; 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_command = 0; 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor1 = 0; 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_status = 0; 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor3 = 0; 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_prdtable = 0; 594020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov 595020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov hwif->extra_base = 0; 596020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov hwif->extra_ports = 0; 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* copy original settings */ 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp_hwif = *hwif; 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* restore hwif data to pristine status */ 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_data(hwif, index); 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_default(hwif, index); 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_restore(hwif, &tmp_hwif); 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsabort: 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 610ef29888ea8e1fdc499e995260195b66fc91d2728Matthias Kaehlcke mutex_unlock(&ide_cfg_mtx); 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_unregister); 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_setup_ports - set up IDE interface ports 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hw: register descriptions 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @base: base register 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @offsets: table of register offsets 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @ctrl: control register 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @ack_irq: IRQ ack 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @irq: interrupt lie 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup hw_regs_t structure described by parameters. You 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * may set up the hw structure yourself OR use this routine to 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * do it for you. This is basically a helper 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ide_setup_ports ( hw_regs_t *hw, 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long base, int *offsets, 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long ctrl, unsigned long intr, 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_ack_intr_t *ack_intr, 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_io_ops_t *iops, 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int irq) 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6422c3e0262e0cb5395fe02cdf27c229ee7414ab0c0Roman Zippel memset(hw, 0, sizeof(hw_regs_t)); 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < IDE_NR_PORTS; i++) { 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (offsets[i] == -1) { 6451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch(i) { 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IDE_CONTROL_OFFSET: 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->io_ports[i] = ctrl; 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(CONFIG_AMIGA) || defined(CONFIG_MAC) 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IDE_IRQ_OFFSET: 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->io_ports[i] = intr; 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* (CONFIG_AMIGA) || (CONFIG_MAC) */ 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->io_ports[i] = 0; 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->io_ports[i] = base + offsets[i]; 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->irq = irq; 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->dma = NO_DMA; 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->ack_intr = ack_intr; 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * hw->iops = iops; 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_register_hw_with_fixup - register IDE interface 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hw: hardware registers 673869c56ee9de1b72cd3f8ab9cdfbd3601e55c61f2Bartlomiej Zolnierkiewicz * @initializing: set while initializing built-in drivers 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hwifp: pointer to returned hwif 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @fixup: fixup function 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Register an IDE interface, specifying exactly the registers etc. 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set init=1 iff calling before probes have taken place. 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns -1 on error. 6811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 683869c56ee9de1b72cd3f8ab9cdfbd3601e55c61f2Bartlomiej Zolnierkiewiczint ide_register_hw_with_fixup(hw_regs_t *hw, int initializing, 684869c56ee9de1b72cd3f8ab9cdfbd3601e55c61f2Bartlomiej Zolnierkiewicz ide_hwif_t **hwifp, 685869c56ee9de1b72cd3f8ab9cdfbd3601e55c61f2Bartlomiej Zolnierkiewicz void(*fixup)(ide_hwif_t *hwif)) 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index, retry = 1; 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif; 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; ++index) { 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[index]; 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->hw.io_ports[IDE_DATA_OFFSET] == hw->io_ports[IDE_DATA_OFFSET]) 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto found; 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; ++index) { 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[index]; 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->hold) 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((!hwif->present && !hwif->mate && !initializing) || 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (!hwif->hw.io_ports[IDE_DATA_OFFSET] && initializing)) 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto found; 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; index++) 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_unregister(index); 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (retry--); 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfound: 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->present) 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_unregister(index); 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (!hwif->hold) { 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_data(hwif, index); 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_default(hwif, index); 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->present) 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(&hwif->hw, hw, sizeof(*hw)); 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports)); 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->irq = hw->irq; 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = hw->chipset; 7224349d5cdf28d46c22d467079e80ee9695dcec0adHannes Reinecke hwif->gendev.parent = hw->dev; 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!initializing) { 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_hwif_init_with_fixup(hwif, fixup); 7265cbf79cdb37be2aa2a1b4fa94144526b14557060Bartlomiej Zolnierkiewicz ide_proc_register_port(hwif); 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwifp) 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *hwifp = hwif; 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (initializing || hwif->present) ? index : -1; 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_register_hw_with_fixup); 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 737869c56ee9de1b72cd3f8ab9cdfbd3601e55c61f2Bartlomiej Zolnierkiewiczint ide_register_hw(hw_regs_t *hw, int initializing, ide_hwif_t **hwifp) 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 739869c56ee9de1b72cd3f8ab9cdfbd3601e55c61f2Bartlomiej Zolnierkiewicz return ide_register_hw_with_fixup(hw, initializing, hwifp, NULL); 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_register_hw); 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Locks for IDE setting functionality 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 748f9383c4269d264c3cf563bd2de365891f6592ebdMatthias KaehlckeDEFINE_MUTEX(ide_setting_mtx); 7491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 750f9383c4269d264c3cf563bd2de365891f6592ebdMatthias KaehlckeEXPORT_SYMBOL_GPL(ide_setting_mtx); 7511497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_spin_wait_hwgroup - wait for group 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @drive: drive in the group 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Wait for an IDE device group to go non busy and then return 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * holding the ide_lock which guards the hwgroup->busy status 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and right to use it. 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ide_spin_wait_hwgroup (ide_drive_t *drive) 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwgroup_t *hwgroup = HWGROUP(drive); 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long timeout = jiffies + (3 * HZ); 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (hwgroup->busy) { 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long lflags; 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_set(lflags); 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (time_after(jiffies, timeout)) { 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_restore(lflags); 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "%s: channel busy\n", drive->name); 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_restore(lflags); 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_spin_wait_hwgroup); 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7857662d046df09e80680b77b68de896beab45e675eBartlomiej Zolnierkiewiczint set_io_32bit(ide_drive_t *drive, int arg) 7861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7871497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (drive->no_io_32bit) 7881497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EPERM; 7891497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7901497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1)) 7911497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 7921497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->io_32bit = arg; 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_DTC2278 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (HWIF(drive)->chipset == ide_dtc2278) 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds HWIF(drive)->drives[!drive->select.b.unit].io_32bit = arg; 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_DTC2278 */ 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8011497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewiczstatic int set_ksettings(ide_drive_t *drive, int arg) 8021497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz{ 8031497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1) 8041497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 8051497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8061497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (ide_spin_wait_hwgroup(drive)) 8071497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EBUSY; 8081497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz drive->keep_settings = arg; 8091497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 8101497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8111497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return 0; 8121497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz} 8131497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8147662d046df09e80680b77b68de896beab45e675eBartlomiej Zolnierkiewiczint set_using_dma(ide_drive_t *drive, int arg) 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEDMA 8178799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz ide_hwif_t *hwif = drive->hwif; 8188799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz int err = -EPERM; 8198799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 8201497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1) 8211497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 8221497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!drive->id || !(drive->id->capability & 1)) 8248799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz goto out; 8258799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 8268799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz if (hwif->ide_dma_check == NULL) 8278799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz goto out; 8288799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 8298799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz err = -EBUSY; 8308799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz if (ide_spin_wait_hwgroup(drive)) 8318799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz goto out; 8328799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz /* 8338799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz * set ->busy flag, unlock and let it ride 8348799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz */ 8358799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz hwif->hwgroup->busy = 1; 8368799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 8378799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 8388799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz err = 0; 8398799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (arg) { 841793a97228d3da876f42b7fb4d4a52cc8cc86dc81Bartlomiej Zolnierkiewicz hwif->dma_off_quietly(drive); 8428799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz if (ide_set_dma(drive) || hwif->ide_dma_on(drive)) 8438799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz err = -EIO; 8447469aaf6a30f4187ed6de7c0aed5c2dd2d1c2d31Bartlomiej Zolnierkiewicz } else 8457469aaf6a30f4187ed6de7c0aed5c2dd2d1c2d31Bartlomiej Zolnierkiewicz ide_dma_off(drive); 8468799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 8478799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz /* 8488799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz * lock, clear ->busy flag and unlock before leaving 8498799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz */ 8508799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz spin_lock_irq(&ide_lock); 8518799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz hwif->hwgroup->busy = 0; 8528799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 8538799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewiczout: 8548799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz return err; 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 8561497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1) 8571497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 8581497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8637662d046df09e80680b77b68de896beab45e675eBartlomiej Zolnierkiewiczint set_pio_mode(ide_drive_t *drive, int arg) 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request rq; 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8671497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 255) 8681497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 8691497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!HWIF(drive)->tuneproc) 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOSYS; 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (drive->special.b.set_tune) 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_drive_cmd(&rq); 8751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->tune_req = (u8) arg; 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->special.b.set_tune = 1; 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) ide_do_drive_cmd(drive, &rq, ide_wait); 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8811497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewiczstatic int set_unmaskirq(ide_drive_t *drive, int arg) 8821497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz{ 8831497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (drive->no_unmask) 8841497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EPERM; 8851497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8861497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1) 8871497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 8881497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8891497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (ide_spin_wait_hwgroup(drive)) 8901497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EBUSY; 8911497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz drive->unmask = arg; 8921497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 8931497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8941497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return 0; 8951497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz} 8961497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 8981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * system_bus_clock - clock guess 8991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * External version of the bus clock guess used by very old IDE drivers 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for things like VLB timings. Should not be used. 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint system_bus_clock (void) 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return((int) ((!system_bus_speed) ? ide_system_bus_speed() : system_bus_speed )); 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(system_bus_clock); 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911b887d2e63c8857149ef59eb6e05adfaa018b8ebfDavid Brownellstatic int generic_ide_suspend(struct device *dev, pm_message_t mesg) 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive = dev->driver_data; 914e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_hwif_t *hwif = HWIF(drive); 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request rq; 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request_pm_state rqpm; 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_task_t args; 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 919e3a59b4d9378522479609042836ae930305a67feHannes Reinecke /* Call ACPI _GTM only once */ 920e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!(drive->dn % 2)) 921e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_acpi_get_timing(hwif); 922e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rq, 0, sizeof(rq)); 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rqpm, 0, sizeof(rqpm)); 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&args, 0, sizeof(args)); 9264aff5e2333c9a1609662f2091f55c3f6fffdad36Jens Axboe rq.cmd_type = REQ_TYPE_PM_SUSPEND; 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rq.special = &args; 928c00895ab2f08df7044e58ee01c38bf0a661ea0ebJens Axboe rq.data = &rqpm; 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rqpm.pm_step = ide_pm_state_start_suspend; 930b887d2e63c8857149ef59eb6e05adfaa018b8ebfDavid Brownell if (mesg.event == PM_EVENT_PRETHAW) 931b887d2e63c8857149ef59eb6e05adfaa018b8ebfDavid Brownell mesg.event = PM_EVENT_FREEZE; 932b887d2e63c8857149ef59eb6e05adfaa018b8ebfDavid Brownell rqpm.pm_state = mesg.event; 9331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_do_drive_cmd(drive, &rq, ide_wait); 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int generic_ide_resume(struct device *dev) 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive = dev->driver_data; 940e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_hwif_t *hwif = HWIF(drive); 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request rq; 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request_pm_state rqpm; 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_task_t args; 9440d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager int err; 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 946e3a59b4d9378522479609042836ae930305a67feHannes Reinecke /* Call ACPI _STM only once */ 947e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!(drive->dn % 2)) 948e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_acpi_push_timing(hwif); 949e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 950e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_acpi_exec_tfs(drive); 951e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rq, 0, sizeof(rq)); 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rqpm, 0, sizeof(rqpm)); 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&args, 0, sizeof(args)); 9554aff5e2333c9a1609662f2091f55c3f6fffdad36Jens Axboe rq.cmd_type = REQ_TYPE_PM_RESUME; 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rq.special = &args; 957c00895ab2f08df7044e58ee01c38bf0a661ea0ebJens Axboe rq.data = &rqpm; 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rqpm.pm_step = ide_pm_state_start_resume; 959ca078bae813dd46c0f9b102fdfb4a3384641ff48Pavel Machek rqpm.pm_state = PM_EVENT_ON; 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9610d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager err = ide_do_drive_cmd(drive, &rq, ide_head_wait); 9620d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager 963ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki if (err == 0 && dev->driver) { 964ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki ide_driver_t *drv = to_ide_driver(dev->driver); 965ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki 966ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki if (drv->resume) 967ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki drv->resume(drive); 968ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki } 9690d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager 9700d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager return err; 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device *bdev, 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int cmd, unsigned long arg) 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9761497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz unsigned long flags; 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_driver_t *drv; 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __user *p = (void __user *)arg; 9791985026d32e69ed6dac3ba0ef8ff10366f060ed3Linus Torvalds int err = 0, (*setfunc)(ide_drive_t *, int); 9801497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz u8 *val; 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9821497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz switch (cmd) { 9831497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_GET_32BIT: val = &drive->io_32bit; goto read_val; 9841497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_GET_KEEPSETTINGS: val = &drive->keep_settings; goto read_val; 9851497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_GET_UNMASKINTR: val = &drive->unmask; goto read_val; 9861497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_GET_DMA: val = &drive->using_dma; goto read_val; 9871497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_32BIT: setfunc = set_io_32bit; goto set_val; 9881497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_KEEPSETTINGS: setfunc = set_ksettings; goto set_val; 9891497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_PIO_MODE: setfunc = set_pio_mode; goto set_val; 9901497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_UNMASKINTR: setfunc = set_unmaskirq; goto set_val; 9911497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_DMA: setfunc = set_using_dma; goto set_val; 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_OBSOLETE_IDENTITY: 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_GET_IDENTITY: 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bdev != bdev->bd_contains) 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (drive->id_read == 0) 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMSG; 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_to_user(p, drive->id, (cmd == HDIO_GET_IDENTITY) ? sizeof(*drive->id) : 142)) 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_GET_NICE: 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return put_user(drive->dsc_overlap << IDE_NICE_DSC_OVERLAP | 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->atapi_overlap << IDE_NICE_ATAPI_OVERLAP | 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->nice0 << IDE_NICE_0 | 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->nice1 << IDE_NICE_1 | 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->nice2 << IDE_NICE_2, 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (long __user *) arg); 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_IDE_TASK_IOCTL 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_TASKFILE: 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch(drive->media) { 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case ide_disk: 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_taskfile_ioctl(drive, cmd, arg); 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMSG; 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_IDE_TASK_IOCTL */ 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_CMD: 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_cmd_ioctl(drive, cmd, arg); 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_TASK: 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_task_ioctl(drive, cmd, arg); 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_SCAN_HWIF: 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw_regs_t hw; 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int args[3]; 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) return -EACCES; 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_from_user(args, p, 3 * sizeof(int))) 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&hw, 0, sizeof(hw)); 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_hwif_ports(&hw, (unsigned long) args[0], 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (unsigned long) args[1], NULL); 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw.irq = args[2]; 1046869c56ee9de1b72cd3f8ab9cdfbd3601e55c61f2Bartlomiej Zolnierkiewicz if (ide_register_hw(&hw, 0, NULL) == -1) 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EIO; 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_UNREGISTER_HWIF: 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) return -EACCES; 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* (arg > MAX_HWIFS) checked in function */ 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_unregister(arg); 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_SET_NICE: 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) return -EACCES; 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (arg != (arg & ((1 << IDE_NICE_DSC_OVERLAP) | (1 << IDE_NICE_1)))) 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->dsc_overlap = (arg >> IDE_NICE_DSC_OVERLAP) & 1; 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drv = *(ide_driver_t **)bdev->bd_disk->private_data; 10611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (drive->dsc_overlap && !drv->supports_dsc_overlap) { 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->dsc_overlap = 0; 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 10641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->nice1 = (arg >> IDE_NICE_1) & 1; 10661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_RESET: 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) return -EACCES; 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Abort the current command on the 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * group if there is one, taking 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * care not to allow anything else 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to be queued and to die on the 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * spot if we miss one somehow 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&ide_lock, flags); 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1082913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox if (HWGROUP(drive)->resetting) { 1083913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox spin_unlock_irqrestore(&ide_lock, flags); 1084913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox return -EBUSY; 1085913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox } 1086913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox 10871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_abort(drive, "drive reset"); 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1089125e18745f16685f69a34fd6130d47598fc4bf54Eric Sesterhenn BUG_ON(HWGROUP(drive)->handler); 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Ensure nothing gets queued after we 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drop the lock. Reset will clear the busy */ 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds HWGROUP(drive)->busy = 1; 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&ide_lock, flags); 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) ide_do_reset(drive); 10971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_GET_BUSSTATE: 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (put_user(HWIF(drive)->bus_state, (long __user *)arg)) 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_SET_BUSSTATE: 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (HWIF(drive)->busproc) 11121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return HWIF(drive)->busproc(drive, (int)arg); 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EOPNOTSUPP; 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11171497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 11181497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewiczread_val: 1119f9383c4269d264c3cf563bd2de365891f6592ebdMatthias Kaehlcke mutex_lock(&ide_setting_mtx); 11201497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz spin_lock_irqsave(&ide_lock, flags); 11211497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz err = *val; 11221497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz spin_unlock_irqrestore(&ide_lock, flags); 1123f9383c4269d264c3cf563bd2de365891f6592ebdMatthias Kaehlcke mutex_unlock(&ide_setting_mtx); 11241497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return err >= 0 ? put_user(err, (long __user *)arg) : err; 11251497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 11261497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewiczset_val: 11271497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (bdev != bdev->bd_contains) 11281497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz err = -EINVAL; 11291497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz else { 11301497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (!capable(CAP_SYS_ADMIN)) 11311497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz err = -EACCES; 11321497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz else { 1133f9383c4269d264c3cf563bd2de365891f6592ebdMatthias Kaehlcke mutex_lock(&ide_setting_mtx); 11341497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz err = setfunc(drive, arg); 1135f9383c4269d264c3cf563bd2de365891f6592ebdMatthias Kaehlcke mutex_unlock(&ide_setting_mtx); 11361497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz } 11371497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz } 11381497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return err; 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(generic_ide_ioctl); 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * stridx() returns the offset of c within s, 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or -1 if c is '\0' or not found within s. 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init stridx (const char *s, char c) 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *i = strchr(s, c); 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (i && c) ? i - s : -1; 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * match_parm() does parsing for ide_setup(): 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1. the first char of s must be '='. 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2. if the remainder matches one of the supplied keywords, 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the index (1 based) of the keyword is negated and returned. 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3. if the remainder is a series of no more than max_vals numbers 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * separated by commas, the numbers are saved in vals[] and a 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * count of how many were saved is returned. Base10 is assumed, 11621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and base16 is allowed when prefixed with "0x". 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4. otherwise, zero is returned. 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init match_parm (char *s, const char *keywords[], int vals[], int max_vals) 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static const char *decimal = "0123456789"; 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static const char *hex = "0123456789abcdef"; 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, n; 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (*s++ == '=') { 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Try matching against the supplied keywords, 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and return -(index+1) if we match one 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (keywords != NULL) { 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; *keywords != NULL; ++i) { 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, *keywords++)) 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -(i+1); 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for a series of no more than "max_vals" 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * numeric values separated by commas, in base10, 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or base16 when prefixed with "0x". 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Return a count of how many were found. 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (n = 0; (i = stridx(decimal, *s)) >= 0;) { 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[n] = i; 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((i = stridx(decimal, *++s)) >= 0) 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[n] = (vals[n] * 10) + i; 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (*s == 'x' && !vals[n]) { 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((i = stridx(hex, *++s)) >= 0) 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[n] = (vals[n] * 0x10) + i; 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++n == max_vals) 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (*s == ',' || *s == ';') 11991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ++s; 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!*s) 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return n; 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* zero = nothing matched */ 12051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_ALI14XX 1208849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_ali14xx; 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int ali14xx_init(void); 12101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_UMC8672 1212849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_umc8672; 12131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int umc8672_init(void); 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 12151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_DTC2278 1216849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_dtc2278; 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int dtc2278_init(void); 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_HT6560B 1220849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_ht6560b; 12211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int ht6560b_init(void); 12221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 12231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_QD65XX 1224849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_qd65xx; 12251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int qd65xx_init(void); 12261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 12271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __initdata is_chipset_set[MAX_HWIFS]; 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 12311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_setup() gets called VERY EARLY during initialization, 12321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to handle kernel "command line" strings beginning with "hdx=" or "ide". 12331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Remember to update Documentation/ide.txt if you change something here. 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init ide_setup(char *s) 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, vals[3]; 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif; 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive; 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int hw, unit; 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char max_drive = 'a' + ((MAX_HWIFS * MAX_DRIVES) - 1); 12431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char max_hwif = '0' + (MAX_HWIFS - 1); 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(s,"hd",2) == 0 && s[2] == '=') /* hd= is for hd.c */ 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* driver and not us */ 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(s,"ide",3) && strncmp(s,"idebus",6) && strncmp(s,"hd",2)) 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "ide_setup: %s", s); 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_ide_data (); 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEDOUBLER 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, "ide=doubler")) { 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern int ide_doubler; 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" : Enabled support for IDE doublers\n"); 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_doubler = 1; 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_IDEDOUBLER */ 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, "ide=nodma")) { 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" : Prevented DMA\n"); 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds noautodma = 1; 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12716d208b39c45edee5def6c201fcd51561c5a39828Bartlomiej Zolnierkiewicz#ifdef CONFIG_IDEPCI_PCIBUS_ORDER 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, "ide=reverse")) { 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_scan_direction = 1; 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" : Enabled support for IDE inverse scan order.\n"); 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12776d208b39c45edee5def6c201fcd51561c5a39828Bartlomiej Zolnierkiewicz#endif 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1279e3a59b4d9378522479609042836ae930305a67feHannes Reinecke#ifdef CONFIG_BLK_DEV_IDEACPI 1280e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!strcmp(s, "ide=noacpi")) { 1281e3a59b4d9378522479609042836ae930305a67feHannes Reinecke //printk(" : Disable IDE ACPI support.\n"); 1282e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_noacpi = 1; 1283e3a59b4d9378522479609042836ae930305a67feHannes Reinecke return 1; 1284e3a59b4d9378522479609042836ae930305a67feHannes Reinecke } 1285e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!strcmp(s, "ide=acpigtf")) { 1286e3a59b4d9378522479609042836ae930305a67feHannes Reinecke //printk(" : Enable IDE ACPI _GTF support.\n"); 1287e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_noacpitfs = 0; 1288e3a59b4d9378522479609042836ae930305a67feHannes Reinecke return 1; 1289e3a59b4d9378522479609042836ae930305a67feHannes Reinecke } 1290e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!strcmp(s, "ide=acpionboot")) { 1291e3a59b4d9378522479609042836ae930305a67feHannes Reinecke //printk(" : Call IDE ACPI methods on boot.\n"); 1292e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_noacpionboot = 0; 1293e3a59b4d9378522479609042836ae930305a67feHannes Reinecke return 1; 1294e3a59b4d9378522479609042836ae930305a67feHannes Reinecke } 1295e3a59b4d9378522479609042836ae930305a67feHannes Reinecke#endif /* CONFIG_BLK_DEV_IDEACPI */ 1296e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for drive options: "hdx=" 12991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[0] == 'h' && s[1] == 'd' && s[2] >= 'a' && s[2] <= max_drive) { 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *hd_words[] = { 1302b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz "none", "noprobe", "nowerr", "cdrom", "minus5", 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "autotune", "noautotune", "minus8", "swapdata", "bswap", 1304361934849e9c0418950bedf667732f36337d88b9Jens Axboe "noflush", "remap", "remap63", "scsi", NULL }; 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit = s[2] - 'a'; 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw = unit / MAX_DRIVES; 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit = unit % MAX_DRIVES; 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[hw]; 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive = &hwif->drives[unit]; 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(s + 4, "ide-", 4) == 0) { 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(drive->driver_req, s + 4, sizeof(drive->driver_req)); 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (match_parm(&s[3], hd_words, vals, 3)) { 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -1: /* "none" */ 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -2: /* "noprobe" */ 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->noprobe = 1; 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -3: /* "nowerr" */ 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->bad_wstat = BAD_R_STAT; 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -4: /* "cdrom" */ 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->present = 1; 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->media = ide_cdrom; 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* an ATAPI device ignores DRDY */ 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ready_stat = 0; 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -6: /* "autotune" */ 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->autotune = IDE_TUNE_AUTO; 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -7: /* "noautotune" */ 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->autotune = IDE_TUNE_NOAUTO; 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -9: /* "swapdata" */ 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -10: /* "bswap" */ 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->bswap = 1; 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 1340361934849e9c0418950bedf667732f36337d88b9Jens Axboe case -11: /* noflush */ 1341361934849e9c0418950bedf667732f36337d88b9Jens Axboe drive->noflush = 1; 1342361934849e9c0418950bedf667732f36337d88b9Jens Axboe goto done; 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -12: /* "remap" */ 13441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->remap_0_to_1 = 1; 13451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -13: /* "remap63" */ 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->sect0 = 63; 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -14: /* "scsi" */ 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->scsi = 1; 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 3: /* cyl,head,sect */ 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->media = ide_disk; 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ready_stat = READY_STAT; 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->cyl = drive->bios_cyl = vals[0]; 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->head = drive->bios_head = vals[1]; 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->sect = drive->bios_sect = vals[2]; 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->present = 1; 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->forced_geom = 1; 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[0] != 'i' || s[1] != 'd' || s[2] != 'e') 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for bus speed option: "idebus=" 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[3] == 'b' && s[4] == 'u' && s[5] == 's') { 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (match_parm(&s[6], NULL, vals, 1) != 1) 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (vals[0] >= 20 && vals[0] <= 66) { 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds idebus_parameter = vals[0]; 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- BAD BUS SPEED! Expected value from 20 to 66"); 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for interface options: "idex=" 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[3] >= '0' && s[3] <= max_hwif) { 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Be VERY CAREFUL changing this: note hardcoded indexes below 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (-8, -9, -10) are reserved to ease the hardcoding. 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static const char *ide_words[] = { 1390b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz "noprobe", "serialize", "minus3", "minus4", 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "reset", "dma", "ata66", "minus8", "minus9", 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "minus10", "four", "qd65xx", "ht6560b", "cmd640_vlb", 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "dtc2278", "umc8672", "ali14xx", NULL }; 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw = s[3] - '0'; 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[hw]; 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = match_parm(&s[4], ide_words, vals, 3); 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Cryptic check to ensure chipset not already set for hwif. 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: we can't depend on hwif->chipset here. 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((i >= -18 && i <= -11) || (i > 0 && i <= 3)) { 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* chipset already specified */ 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (is_chipset_set[hw]) 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i > -18 && i <= -11) { 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* these drivers are for "ide0=" only */ 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hw != 0) 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_hwif; 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* chipset already specified for 2nd port */ 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (is_chipset_set[hw+1]) 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds is_chipset_set[hw] = 1; 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("\n"); 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (i) { 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_ALI14XX 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -17: /* "ali14xx" */ 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_ali14xx = 1; 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_UMC8672 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -16: /* "umc8672" */ 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_umc8672 = 1; 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_DTC2278 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -15: /* "dtc2278" */ 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_dtc2278 = 1; 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_CMD640 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -14: /* "cmd640_vlb" */ 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern int cmd640_vlb; /* flag for cmd640.c */ 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd640_vlb = 1; 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_HT6560B 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -13: /* "ht6560b" */ 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_ht6560b = 1; 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_QD65XX 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -12: /* "qd65xx" */ 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_qd65xx = 1; 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_4DRIVES 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -11: /* "four" drives on one set of ports */ 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *mate = &ide_hwifs[hw^1]; 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mate->drives[0].select.all ^= 0x20; 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mate->drives[1].select.all ^= 0x20; 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = mate->chipset = ide_4drives; 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mate->irq = hwif->irq; 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(mate->io_ports, hwif->io_ports, sizeof(hwif->io_ports)); 1461b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz hwif->mate = mate; 1462b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz mate->mate = hwif; 1463b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz hwif->serialized = mate->serialized = 1; 1464b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz goto obsolete_option; 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_4DRIVES */ 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -10: /* minus10 */ 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -9: /* minus9 */ 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -8: /* minus8 */ 1470b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz case -4: 1471b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz case -3: 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -7: /* ata66 */ 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEPCI 147549521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz /* 147649521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz * Use ATA_CBL_PATA40_SHORT so drive side 147749521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz * cable detection is also overriden. 147849521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz */ 147949521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz hwif->cbl = ATA_CBL_PATA40_SHORT; 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 14811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 14821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_hwif; 14831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -6: /* dma */ 14851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->autodma = 1; 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -5: /* "reset" */ 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->reset = 1; 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -2: /* "serialize" */ 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mate = &ide_hwifs[hw^1]; 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mate->mate = hwif; 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->serialized = hwif->mate->serialized = 1; 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -1: /* "noprobe" */ 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 1; 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 1: /* base */ 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[1] = vals[0] + 0x206; /* default ctl */ 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 2: /* base,ctl */ 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[2] = 0; /* default irq = probe for it */ 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 3: /* base,ctl,irq */ 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hw.irq = vals[2]; 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_hwif_ports(&hwif->hw, (unsigned long) vals[0], (unsigned long) vals[1], &hwif->irq); 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports)); 15081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->irq = vals[2]; 15091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 15101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = ide_forced; 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0: goto bad_option; 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- SUPPORT NOT CONFIGURED IN THIS KERNEL\n"); 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsbad_option: 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- BAD OPTION\n"); 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsobsolete_option: 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- OBSOLETE OPTION, WILL BE REMOVED SOON!\n"); 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsbad_hwif: 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("-- NOT SUPPORTED ON ide%d", hw); 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdone: 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("\n"); 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1532eb7972271720bfc64dc8bacc5b15f874c0bcc859Al Viroextern void __init pnpide_init(void); 1533eb7972271720bfc64dc8bacc5b15f874c0bcc859Al Viroextern void __exit pnpide_exit(void); 1534eb7972271720bfc64dc8bacc5b15f874c0bcc859Al Viroextern void __init h8300_ide_init(void); 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 15371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * probe_for_hwifs() finds/initializes "known" IDE interfaces 15381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __init probe_for_hwifs (void) 15401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 15416d208b39c45edee5def6c201fcd51561c5a39828Bartlomiej Zolnierkiewicz#ifdef CONFIG_IDEPCI_PCIBUS_ORDER 15421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_scan_pcibus(ide_scan_direction); 15436d208b39c45edee5def6c201fcd51561c5a39828Bartlomiej Zolnierkiewicz#endif 15441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_ETRAX_IDE 15461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 15471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern void init_e100_ide(void); 15481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_e100_ide(); 15491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_ETRAX_IDE */ 15511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_CMD640 15521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 15531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern void ide_probe_for_cmd640x(void); 15541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_probe_for_cmd640x(); 15551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_CMD640 */ 15571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDE_PMAC 15581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 15599e5755bce00bb563739aeb0f09932a1907521167Andrew Morton extern int pmac_ide_probe(void); 15609e5755bce00bb563739aeb0f09932a1907521167Andrew Morton (void)pmac_ide_probe(); 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_IDE_PMAC */ 15631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_GAYLE 15641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 15651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern void gayle_init(void); 15661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds gayle_init(); 15671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_GAYLE */ 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_FALCON_IDE 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern void falconide_init(void); 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds falconide_init(); 15731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_FALCON_IDE */ 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_MAC_IDE 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 15771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern void macide_init(void); 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds macide_init(); 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_MAC_IDE */ 15811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_Q40IDE 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern void q40ide_init(void); 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds q40ide_init(); 15851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_Q40IDE */ 15871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_BUDDHA 15881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 15891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern void buddha_init(void); 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buddha_init(); 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_BUDDHA */ 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEPNP 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pnpide_init(); 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_H8300 15971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds h8300_ide_init(); 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 15991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 16021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Probe module 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_lock); 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16078604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewiczstatic int ide_bus_match(struct device *dev, struct device_driver *drv) 16088604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz{ 16098604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz return 1; 16108604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz} 16118604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz 1612263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic char *media_string(ide_drive_t *drive) 1613263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1614263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers switch (drive->media) { 1615263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers case ide_disk: 1616263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "disk"; 1617263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers case ide_cdrom: 1618263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "cdrom"; 1619263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers case ide_tape: 1620263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "tape"; 1621263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers case ide_floppy: 1622263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "floppy"; 1623a7a832de9e9624bcf069a5369c3c38ba2f44d460Danny Kukawka case ide_optical: 1624a7a832de9e9624bcf069a5369c3c38ba2f44d460Danny Kukawka return "optical"; 1625263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers default: 1626263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "UNKNOWN"; 1627263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers } 1628263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1629263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1630263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic ssize_t media_show(struct device *dev, struct device_attribute *attr, char *buf) 1631263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1632263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 1633263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return sprintf(buf, "%s\n", media_string(drive)); 1634263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1635263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1636263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic ssize_t drivename_show(struct device *dev, struct device_attribute *attr, char *buf) 1637263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1638263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 1639263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return sprintf(buf, "%s\n", drive->name); 1640263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1641263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1642263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) 1643263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1644263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 1645263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return sprintf(buf, "ide:m-%s\n", media_string(drive)); 1646263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1647263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1648263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic struct device_attribute ide_dev_attrs[] = { 1649263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers __ATTR_RO(media), 1650263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers __ATTR_RO(drivename), 1651263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers __ATTR_RO(modalias), 1652263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers __ATTR_NULL 1653263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers}; 1654263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1655263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic int ide_uevent(struct device *dev, char **envp, int num_envp, 1656263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers char *buffer, int buffer_size) 1657263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1658263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 1659263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers int i = 0; 1660263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers int length = 0; 1661263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1662263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, 1663263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers "MEDIA=%s", media_string(drive)); 1664263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, 1665263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers "DRIVENAME=%s", drive->name); 1666263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, 1667263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers "MODALIAS=ide:m-%s", media_string(drive)); 1668263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers envp[i] = NULL; 1669263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return 0; 1670263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1671263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 16724031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell Kingstatic int generic_ide_probe(struct device *dev) 16734031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King{ 16744031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_drive_t *drive = to_ide_device(dev); 16754031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_driver_t *drv = to_ide_driver(dev->driver); 16764031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 16774031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King return drv->probe ? drv->probe(drive) : -ENODEV; 16784031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King} 16794031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 16804031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell Kingstatic int generic_ide_remove(struct device *dev) 16814031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King{ 16824031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_drive_t *drive = to_ide_device(dev); 16834031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_driver_t *drv = to_ide_driver(dev->driver); 16844031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 16854031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King if (drv->remove) 16864031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King drv->remove(drive); 16874031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 16884031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King return 0; 16894031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King} 16904031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 16914031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell Kingstatic void generic_ide_shutdown(struct device *dev) 16924031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King{ 16934031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_drive_t *drive = to_ide_device(dev); 16944031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_driver_t *drv = to_ide_driver(dev->driver); 16954031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 16964031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King if (dev->driver && drv->shutdown) 16974031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King drv->shutdown(drive); 16984031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King} 16994031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct bus_type ide_bus_type = { 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "ide", 17028604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz .match = ide_bus_match, 1703263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers .uevent = ide_uevent, 17044031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King .probe = generic_ide_probe, 17054031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King .remove = generic_ide_remove, 17064031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King .shutdown = generic_ide_shutdown, 1707263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers .dev_attrs = ide_dev_attrs, 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .suspend = generic_ide_suspend, 17091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .resume = generic_ide_resume, 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17128604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_bus_type); 17138604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz 17141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 17151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is gets invoked once during initialization, to set *everything* up 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init ide_init(void) 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1719349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap int ret; 1720349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "Uniform Multi-Platform E-IDE driver " REVISION "\n"); 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds system_bus_speed = ide_system_bus_speed(); 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1724349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap ret = bus_register(&ide_bus_type); 1725349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap if (ret < 0) { 1726349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap printk(KERN_WARNING "IDE: bus_register error: %d\n", ret); 1727349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap return ret; 1728349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap } 17291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_ide_data(); 17311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17325cbf79cdb37be2aa2a1b4fa94144526b14557060Bartlomiej Zolnierkiewicz proc_ide_create(); 17331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_ALI14XX 17351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (probe_ali14xx) 17361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void)ali14xx_init(); 17371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_UMC8672 17391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (probe_umc8672) 17401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void)umc8672_init(); 17411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_DTC2278 17431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (probe_dtc2278) 17441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void)dtc2278_init(); 17451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_HT6560B 17471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (probe_ht6560b) 17481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void)ht6560b_init(); 17491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_QD65XX 17511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (probe_qd65xx) 17521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void)qd65xx_init(); 17531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 17541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Probe for special PCI and other "known" interface chipsets. */ 17561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_for_hwifs(); 17571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 17591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 17621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *options = NULL; 17631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(options, charp, 0); 17641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 17651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __init parse_options (char *line) 17671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *next = line; 17691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (line == NULL || !*line) 17711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 17721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((line = next) != NULL) { 17731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((next = strchr(line,' ')) != NULL) 17741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *next++ = 0; 17751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ide_setup(line)) 17761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk (KERN_INFO "Unknown option '%s'\n", line); 17771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1780fbd8ad30596409070801832335d3ea8cf1513dedSam Ravnborgint __init init_module (void) 17811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds parse_options(options); 17831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_init(); 17841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1786eb7972271720bfc64dc8bacc5b15f874c0bcc859Al Virovoid __exit cleanup_module (void) 17871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index; 17891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; ++index) 17911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_unregister(index); 17921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17936855036aa035913bc2bfb31c41576a49f42ecd5fTejun Heo#ifdef CONFIG_BLK_DEV_IDEPNP 17946855036aa035913bc2bfb31c41576a49f42ecd5fTejun Heo pnpide_exit(); 17956855036aa035913bc2bfb31c41576a49f42ecd5fTejun Heo#endif 17966855036aa035913bc2bfb31c41576a49f42ecd5fTejun Heo 17971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds proc_ide_destroy(); 17981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_unregister(&ide_bus_type); 18001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 18011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else /* !MODULE */ 18031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds__setup("", ide_setup); 18051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(ide_init); 18071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 18081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* MODULE */ 1809