ide.c revision 71bf9f6fe822397e2cce781a2408c658a776fd68
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 259bca8cc995428c34d8cdfadfa87c8e3f01c4340Bartlomiej Zolnierkiewicz * Copyright (C) 1994-1998 Linus Torvalds & authors (see below) 359bca8cc995428c34d8cdfadfa87c8e3f01c4340Bartlomiej Zolnierkiewicz * Copyrifht (C) 2003-2005, 2007 Bartlomiej Zolnierkiewicz 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mostly written by Mark Lord <mlord@pobox.com> 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and Gadi Oxman <gadio@netvision.net.il> 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and Andre Hedrick <andre@linux-ide.org> 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * See linux/MAINTAINERS for address of current maintainer. 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is the multiple IDE interface driver, as evolved from hd.c. 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * It supports up to MAX_HWIFS IDE interfaces, on one or more IRQs 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (usually 14 & 15). 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There can be up to two drives per interface, as per the ATA-2 spec. 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ... 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * From hd.c: 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | It traverses the request-list, using interrupts to jump between functions. 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | As nearly all functions can be called within interrupts, we may not sleep. 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | Special care is recommended. Have Fun! 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | modified by Drew Eckhardt to check nr of hd's from the CMOS. 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | Thanks to Branko Lankester, lankeste@fwi.uva.nl, who found a bug 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | in the early extended-partition checks and added DM partitions. 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | Early work on error handling by Mika Liljeberg (liljeber@cs.Helsinki.FI). 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | IRQ-unmask, drive-id, multiple-mode, support for ">16 heads", 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | and general streamlining by Mark Lord (mlord@pobox.com). 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * October, 1994 -- Complete line-by-line overhaul for linux 1.1.x, by: 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mark Lord (mlord@pobox.com) (IDE Perf.Pkg) 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Delman Lee (delman@ieee.org) ("Mr. atdisk2") 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Scott Snyder (snyder@fnald0.fnal.gov) (ATAPI IDE cd-rom) 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This was a rewrite of just about everything from hd.c, though some original 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * code is still sprinkled about. Think of it as a major evolution, with 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * inspiration from lots of linux users, esp. hamish@zot.apana.org.au 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define _IDE_C /* Tell ide.h it's really us */ 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/timer.h> 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mm.h> 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/interrupt.h> 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/major.h> 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/genhd.h> 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/blkpg.h> 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/delay.h> 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ide.h> 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/completion.h> 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/reboot.h> 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/cdrom.h> 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/seq_file.h> 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/device.h> 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bitops.h> 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/byteorder.h> 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/irq.h> 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* default maximum number of failures */ 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IDE_DEFAULT_MAX_FAILURES 1 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR, 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE2_MAJOR, IDE3_MAJOR, 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE4_MAJOR, IDE5_MAJOR, 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE6_MAJOR, IDE7_MAJOR, 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE8_MAJOR, IDE9_MAJOR }; 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int idebus_parameter; /* holds the "idebus=" parameter */ 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int system_bus_speed; /* holds what we think is VESA/PCI bus speed */ 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 90ef29888ea8e1fdc499e995260195b66fc91d2728Matthias KaehlckeDEFINE_MUTEX(ide_cfg_mtx); 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock); 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint noautodma = 0; 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 95e3a59b4d9378522479609042836ae930305a67feHannes Reinecke#ifdef CONFIG_BLK_DEV_IDEACPI 96e3a59b4d9378522479609042836ae930305a67feHannes Reineckeint ide_noacpi = 0; 97e3a59b4d9378522479609042836ae930305a67feHannes Reineckeint ide_noacpitfs = 1; 98e3a59b4d9378522479609042836ae930305a67feHannes Reineckeint ide_noacpionboot = 1; 99e3a59b4d9378522479609042836ae930305a67feHannes Reinecke#endif 100e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is declared extern in ide.h, for access by other IDE modules: 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldside_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */ 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_hwifs); 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Do not even *think* about calling this! 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 111cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewiczvoid ide_init_port_data(ide_hwif_t *hwif, unsigned int index) 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int unit; 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* bulk initialize hwif & drive info with zeros */ 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(hwif, 0, sizeof(ide_hwif_t)); 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* fill in any non-zero initial values */ 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->index = index; 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->major = ide_hwif_to_major[index]; 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[0] = 'i'; 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[1] = 'd'; 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[2] = 'e'; 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[3] = '0' + index; 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->bus_state = BUSSTATE_ON; 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 129f36d4024caa3790606e43228a574157c45b73b22Aleksey Makarov init_completion(&hwif->gendev_rel_comp); 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default_hwif_iops(hwif); 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default_hwif_transport(hwif); 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (unit = 0; unit < MAX_DRIVES; ++unit) { 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive = &hwif->drives[unit]; 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->media = ide_disk; 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->select.all = (unit<<4)|0xa0; 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->hwif = hwif; 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ctl = 0x08; 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ready_stat = READY_STAT; 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->bad_wstat = BAD_W_STAT; 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->special.b.recalibrate = 1; 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->special.b.set_geometry = 1; 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->name[0] = 'h'; 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->name[1] = 'd'; 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->name[2] = 'a' + (index * MAX_DRIVES) + unit; 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->max_failures = IDE_DEFAULT_MAX_FAILURES; 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->using_dma = 0; 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->vdma = 0; 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds INIT_LIST_HEAD(&drive->list); 151f36d4024caa3790606e43228a574157c45b73b22Aleksey Makarov init_completion(&drive->gendev_rel_comp); 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 154cbb010c180294a5242a7681555c28737d9dd26abBartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_init_port_data); 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void init_hwif_default(ide_hwif_t *hwif, unsigned int index) 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw_regs_t hw; 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&hw, 0, sizeof(hw_regs_t)); 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, &hwif->irq); 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(hwif->io_ports, hw.io_ports, sizeof(hw.io_ports)); 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET]; 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_HD 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->io_ports[IDE_DATA_OFFSET] == HD_DATA) 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 1; /* may be overridden by ide_setup() */ 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * init_ide_data() sets reasonable default values into all fields 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of all instances of the hwifs and drives, but only on the first call. 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Subsequent calls have no effect (they don't wipe out anything). 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine is normally called at driver initialization time, 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but may also be called MUCH earlier during kernel "command-line" 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parameter processing. As such, we cannot depend on any other parts 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of the kernel (such as memory allocation) to be functioning yet. 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is too bad, as otherwise we could dynamically allocate the 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_drive_t structs as needed, rather than always consuming memory 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for the max possible number (MAX_HWIFS * MAX_DRIVES) of them. 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: We should stuff the setup data into __init and copy the 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * relevant hwifs/allocate them properly during boot. 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAGIC_COOKIE 0x12345678 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __init init_ide_data (void) 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif; 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int index; 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static unsigned long magic_cookie = MAGIC_COOKIE; 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (magic_cookie != MAGIC_COOKIE) 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; /* already initialized */ 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds magic_cookie = 0; 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Initialise all interface structures */ 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; ++index) { 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[index]; 204cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz ide_init_port_data(hwif, index); 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_default(hwif, index); 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if !defined(CONFIG_PPC32) || !defined(CONFIG_PCI) 2079239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz hwif->irq = 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_default_irq(hwif->io_ports[IDE_DATA_OFFSET]); 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_system_bus_speed - guess bus speed 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_system_bus_speed() returns what we think is the system VESA/PCI 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bus speed (in MHz). This is used for calculating interface PIO timings. 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The default is 40 for known PCI systems, 50 otherwise. 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The "idebus=xx" parameter can be used to override this value. 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The actual value to be used is computed/displayed the first time 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * through. Drivers should only use this as a last resort. 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns a guessed speed in MHz. 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ide_system_bus_speed(void) 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static struct pci_device_id pci_default[] = { 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { PCI_DEVICE(PCI_ANY_ID, PCI_ANY_ID) }, 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { } 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }; 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define pci_default 0 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PCI */ 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 237537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz /* user supplied value */ 238537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz if (idebus_parameter) 239537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz return idebus_parameter; 240537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz 241537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz /* safe default value for PCI or VESA and PCI*/ 242537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz return pci_dev_present(pci_default) ? 33 : 50; 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 245baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewiczide_hwif_t * ide_find_port(unsigned long base) 246baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz{ 247baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz ide_hwif_t *hwif; 248baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz int i; 249baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz 250baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz for (i = 0; i < MAX_HWIFS; i++) { 251baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz hwif = &ide_hwifs[i]; 252baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz if (hwif->io_ports[IDE_DATA_OFFSET] == base) 253baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz goto found; 254baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz } 255baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz 256baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz for (i = 0; i < MAX_HWIFS; i++) { 257baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz hwif = &ide_hwifs[i]; 2582625cd52b6eafb63b72f2e53f933f41ba9e34dffBartlomiej Zolnierkiewicz if (hwif->chipset == ide_unknown) 259baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz goto found; 260baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz } 261baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz 262baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz hwif = NULL; 263baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewiczfound: 264baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz return hwif; 265baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz} 266baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz 267baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_find_port); 268baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct resource* hwif_request_region(ide_hwif_t *hwif, 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long addr, int num) 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct resource *res = request_region(addr, num, hwif->name); 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!res) 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name, addr, addr+num-1); 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return res; 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_request_regions - request resources for IDE 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hwif: interface to use 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Requests all the needed resources for an interface. 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Right now core IDE code does this work which is deeply wrong. 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MMIO leaves it to the controller driver, 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PIO will migrate this way over time. 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ide_hwif_request_regions(ide_hwif_t *hwif) 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long addr; 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int i; 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2952ad1e558a2305c2b3d5099ee2f4a5929307c20caBartlomiej Zolnierkiewicz if (hwif->mmio) 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[IDE_CONTROL_OFFSET]; 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (addr && !hwif_request_region(hwif, addr, 1)) 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto control_region_busy; 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->straight8 = 0; 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[IDE_DATA_OFFSET]; 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((addr | 7) == hwif->io_ports[IDE_STATUS_OFFSET]) { 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hwif_request_region(hwif, addr, 8)) 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto data_region_busy; 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->straight8 = 1; 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) { 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[i]; 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hwif_request_region(hwif, addr, 1)) { 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (--i) 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(addr, 1); 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto data_region_busy; 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdata_region_busy: 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[IDE_CONTROL_OFFSET]; 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (addr) 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(addr, 1); 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldscontrol_region_busy: 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* If any errors are return, we drop the hwif interface. */ 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_release_regions - free IDE resources 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note that we only release the standard ports, 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and do not even try to handle any extra ports 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * allocated for weird IDE interface chipsets. 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note also that we don't yet handle mmio resources here. More 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * importantly our caller should be doing this so we need to 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * restructure this as a helper function for drivers. 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ide_hwif_release_regions(ide_hwif_t *hwif) 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 i = 0; 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3432ad1e558a2305c2b3d5099ee2f4a5929307c20caBartlomiej Zolnierkiewicz if (hwif->mmio) 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->io_ports[IDE_CONTROL_OFFSET]) 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(hwif->io_ports[IDE_CONTROL_OFFSET], 1); 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->straight8) { 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(hwif->io_ports[IDE_DATA_OFFSET], 8); 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->io_ports[i]) 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(hwif->io_ports[i], 1); 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_restore - restore hwif to template 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hwif: hwif to update 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @tmp_hwif: template 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 361020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov * Restore hwif to a previous state by copying most settings 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * from the template. 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif) 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hwgroup = tmp_hwif->hwgroup; 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->gendev.parent = tmp_hwif->gendev.parent; 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->proc = tmp_hwif->proc; 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->major = tmp_hwif->major; 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->straight8 = tmp_hwif->straight8; 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->bus_state = tmp_hwif->bus_state; 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3776a824c92db4d606c324272c4eed366fb71672440Bartlomiej Zolnierkiewicz hwif->host_flags = tmp_hwif->host_flags; 3786a824c92db4d606c324272c4eed366fb71672440Bartlomiej Zolnierkiewicz 3794099d14322149c7a467e4997b87be4ba8eb78697Bartlomiej Zolnierkiewicz hwif->pio_mask = tmp_hwif->pio_mask; 3804099d14322149c7a467e4997b87be4ba8eb78697Bartlomiej Zolnierkiewicz 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ultra_mask = tmp_hwif->ultra_mask; 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mwdma_mask = tmp_hwif->mwdma_mask; 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->swdma_mask = tmp_hwif->swdma_mask; 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 38549521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz hwif->cbl = tmp_hwif->cbl; 38649521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = tmp_hwif->chipset; 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hold = tmp_hwif->hold; 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 39036501650ec45b1db308c3b51886044863be2d762Bartlomiej Zolnierkiewicz hwif->dev = tmp_hwif->dev; 39136501650ec45b1db308c3b51886044863be2d762Bartlomiej Zolnierkiewicz 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEPCI 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->cds = tmp_hwif->cds; 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 39626bcb879c03254545a19c6700fe5bcef6f21e7b1Bartlomiej Zolnierkiewicz hwif->set_pio_mode = tmp_hwif->set_pio_mode; 39788b2b32babd46cd54d2de4d17eb869aea3383e11Bartlomiej Zolnierkiewicz hwif->set_dma_mode = tmp_hwif->set_dma_mode; 398b4e44369a380c1836d0983c2a5011099b7b26eb1Sergei Shtylyov hwif->mdma_filter = tmp_hwif->mdma_filter; 3992d5eaa6dd744a641e75503232a01f52d0768884cBartlomiej Zolnierkiewicz hwif->udma_filter = tmp_hwif->udma_filter; 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->selectproc = tmp_hwif->selectproc; 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->reset_poll = tmp_hwif->reset_poll; 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->pre_reset = tmp_hwif->pre_reset; 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->resetproc = tmp_hwif->resetproc; 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->maskproc = tmp_hwif->maskproc; 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->quirkproc = tmp_hwif->quirkproc; 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->busproc = tmp_hwif->busproc; 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ata_input_data = tmp_hwif->ata_input_data; 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ata_output_data = tmp_hwif->ata_output_data; 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->atapi_input_bytes = tmp_hwif->atapi_input_bytes; 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->atapi_output_bytes = tmp_hwif->atapi_output_bytes; 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 41315ce926ada545cb078711bd9a18c083c93fa01d7Bartlomiej Zolnierkiewicz hwif->dma_host_set = tmp_hwif->dma_host_set; 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_setup = tmp_hwif->dma_setup; 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_exec_cmd = tmp_hwif->dma_exec_cmd; 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_start = tmp_hwif->dma_start; 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_end = tmp_hwif->ide_dma_end; 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_test_irq = tmp_hwif->ide_dma_test_irq; 419f0dd8712eb8cc5687b4582fbc41cfbcd55bba0d2Albert Lee hwif->ide_dma_clear_irq = tmp_hwif->ide_dma_clear_irq; 420841d2a9bf16471716ba3a5172d24aa40a2ea9398Sergei Shtylyov hwif->dma_lost_irq = tmp_hwif->dma_lost_irq; 421c283f5dbe31920ca70b80a594a97bfaa2a28be13Sergei Shtylyov hwif->dma_timeout = tmp_hwif->dma_timeout; 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTB = tmp_hwif->OUTB; 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTBSYNC = tmp_hwif->OUTBSYNC; 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTW = tmp_hwif->OUTW; 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTSW = tmp_hwif->OUTSW; 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTSL = tmp_hwif->OUTSL; 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INB = tmp_hwif->INB; 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INW = tmp_hwif->INW; 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INSW = tmp_hwif->INSW; 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INSL = tmp_hwif->INSL; 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->sg_max_nents = tmp_hwif->sg_max_nents; 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mmio = tmp_hwif->mmio; 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->rqsize = tmp_hwif->rqsize; 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef CONFIG_BLK_DEV_IDECS 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->irq = tmp_hwif->irq; 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_base = tmp_hwif->dma_base; 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_command = tmp_hwif->dma_command; 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor1 = tmp_hwif->dma_vendor1; 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_status = tmp_hwif->dma_status; 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor3 = tmp_hwif->dma_vendor3; 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_prdtable = tmp_hwif->dma_prdtable; 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->config_data = tmp_hwif->config_data; 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->select_data = tmp_hwif->select_data; 452020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov hwif->extra_base = tmp_hwif->extra_base; 453020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov hwif->extra_ports = tmp_hwif->extra_ports; 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hwif_data = tmp_hwif->hwif_data; 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 458fbd130887a45341259cde02e134581fb3dac6e14Bartlomiej Zolnierkiewiczvoid ide_remove_port_from_hwgroup(ide_hwif_t *hwif) 45996e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz{ 46096e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz ide_hwgroup_t *hwgroup = hwif->hwgroup; 46196e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz 46296e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz spin_lock_irq(&ide_lock); 46396e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz /* 46496e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz * Remove us from the hwgroup, and free 46596e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz * the hwgroup if we were the only member 46696e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz */ 46796e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz if (hwif->next == hwif) { 46896e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz BUG_ON(hwgroup->hwif != hwif); 46996e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz kfree(hwgroup); 47096e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz } else { 47196e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz /* There is another interface in hwgroup. 47296e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz * Unlink us, and set hwgroup->drive and ->hwif to 47396e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz * something sane. 47496e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz */ 47596e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz ide_hwif_t *g = hwgroup->hwif; 47696e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz 47796e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz while (g->next != hwif) 47896e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz g = g->next; 47996e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz g->next = hwif->next; 48096e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz if (hwgroup->hwif == hwif) { 48196e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz /* Chose a random hwif for hwgroup->hwif. 48296e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz * It's guaranteed that there are no drives 48396e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz * left in the hwgroup. 48496e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz */ 48596e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz BUG_ON(hwgroup->drive != NULL); 48696e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz hwgroup->hwif = g; 48796e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz } 48896e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz BUG_ON(hwgroup->hwif == hwif); 48996e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz } 49096e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 49196e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz} 49296e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz 49371bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz/* Called with ide_lock held. */ 49471bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewiczstatic void ide_port_unregister_devices(ide_hwif_t *hwif) 49571bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz{ 49671bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz int i; 49771bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz 49871bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz for (i = 0; i < MAX_DRIVES; i++) { 49971bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz ide_drive_t *drive = &hwif->drives[i]; 50071bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz 50171bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz if (drive->present) { 50271bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 50371bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz device_unregister(&drive->gendev); 50471bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz wait_for_completion(&drive->gendev_rel_comp); 50571bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz spin_lock_irq(&ide_lock); 50671bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz } 50771bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz } 50871bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz} 50971bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 511020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov * ide_unregister - free an IDE interface 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @index: index of interface (will change soon to a pointer) 513f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz * @init_default: init default hwif flag 514f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz * @restore: restore hwif flag 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Perform the final unregister of an IDE interface. At the moment 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we don't refcount interfaces so this will also get split up. 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Locking: 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The caller must not hold the IDE locks 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The drive present/vanishing is not yet properly locked 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Take care with the callbacks. These have been split to avoid 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * deadlocking the IDE layer. The shutdown callback is called 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * before we take the lock and free resources. It is up to the 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * caller to be sure there is no pending I/O here, and that 526020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov * the interface will not be reopened (present/vanishing locking 527020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov * isn't yet done BTW). After we commit to the final kill we 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * call the cleanup callback with the ide locks held. 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Unregister restores the hwif structures to the default state. 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is raving bonkers. 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 534f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewiczvoid ide_unregister(unsigned int index, int init_default, int restore) 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif, *g; 537ef29888ea8e1fdc499e995260195b66fc91d2728Matthias Kaehlcke static ide_hwif_t tmp_hwif; /* protected by ide_cfg_mtx */ 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwgroup_t *hwgroup; 53971bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz int irq_count = 0; 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(index >= MAX_HWIFS); 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(in_interrupt()); 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(irqs_disabled()); 545ef29888ea8e1fdc499e995260195b66fc91d2728Matthias Kaehlcke mutex_lock(&ide_cfg_mtx); 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[index]; 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hwif->present) 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto abort; 55071bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz ide_port_unregister_devices(hwif); 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->present = 0; 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5555cbf79cdb37be2aa2a1b4fa94144526b14557060Bartlomiej Zolnierkiewicz ide_proc_unregister_port(hwif); 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwgroup = hwif->hwgroup; 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * free the irq if we were the only hwif using it 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g = hwgroup->hwif; 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (g->irq == hwif->irq) 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ++irq_count; 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g = g->next; 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (g != hwgroup->hwif); 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (irq_count == 1) 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_irq(hwif->irq, hwgroup); 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 57096e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz ide_remove_port_from_hwgroup(hwif); 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_unregister(&hwif->gendev); 573f36d4024caa3790606e43228a574157c45b73b22Aleksey Makarov wait_for_completion(&hwif->gendev_rel_comp); 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Remove us from the kernel's knowledge 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<<PARTN_BITS); 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(hwif->sg_table); 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unregister_blkdev(hwif->major, hwif->name); 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->dma_base) { 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) ide_release_dma(hwif); 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_base = 0; 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_command = 0; 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor1 = 0; 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_status = 0; 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor3 = 0; 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_prdtable = 0; 592020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov 593020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov hwif->extra_base = 0; 594020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov hwif->extra_ports = 0; 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5977cba97f12963721eca648d6901b294750a1fa3bdBartlomiej Zolnierkiewicz ide_hwif_release_regions(hwif); 5987cba97f12963721eca648d6901b294750a1fa3bdBartlomiej Zolnierkiewicz 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* copy original settings */ 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp_hwif = *hwif; 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* restore hwif data to pristine status */ 603cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz ide_init_port_data(hwif, index); 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 605f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz if (init_default) 606f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz init_hwif_default(hwif, index); 607f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz 608f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz if (restore) 609f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz ide_hwif_restore(hwif, &tmp_hwif); 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsabort: 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 613ef29888ea8e1fdc499e995260195b66fc91d2728Matthias Kaehlcke mutex_unlock(&ide_cfg_mtx); 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_unregister); 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 61857c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewiczvoid ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw) 61957c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz{ 62057c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports)); 62157c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz hwif->irq = hw->irq; 62257c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz hwif->noprobe = 0; 62357c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz hwif->chipset = hw->chipset; 62457c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz hwif->gendev.parent = hw->dev; 62557c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz hwif->ack_intr = hw->ack_intr; 62657c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz} 62757c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_init_port_hw); 62857c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 630fd9bb53942a7ca3398a63f2c238afd8fbed3ec0eBartlomiej Zolnierkiewicz * ide_register_hw - register IDE interface 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hw: hardware registers 632f01393e48c44e30f7c9a36c8b98a07b0232580feBartlomiej Zolnierkiewicz * @quirkproc: quirkproc function 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hwifp: pointer to returned hwif 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Register an IDE interface, specifying exactly the registers etc. 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns -1 on error. 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 640f01393e48c44e30f7c9a36c8b98a07b0232580feBartlomiej Zolnierkiewiczint ide_register_hw(hw_regs_t *hw, void (*quirkproc)(ide_drive_t *), 641cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz ide_hwif_t **hwifp) 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index, retry = 1; 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif; 645cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; 646795d74b51a853e1f5f2c81baf6666836a3866f08Bartlomiej Zolnierkiewicz 6471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 6484f0eee4d877e3b617b6a22d209d52b3dfca2b2a7Bartlomiej Zolnierkiewicz hwif = ide_find_port(hw->io_ports[IDE_DATA_OFFSET]); 6499e016a719209d95338e314b46c3012cc7feaaeecBartlomiej Zolnierkiewicz if (hwif) 6509e016a719209d95338e314b46c3012cc7feaaeecBartlomiej Zolnierkiewicz goto found; 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; index++) 652f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz ide_unregister(index, 1, 1); 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (retry--); 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfound: 6560c6025d44448bd688dfd351a09bc620aafa4d1ffPeter Teoh index = hwif->index; 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->present) 658f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz ide_unregister(index, 0, 1); 659ead741df385607ab74876afdb05fd8ac27da9906Bartlomiej Zolnierkiewicz else if (!hwif->hold) 660cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz ide_init_port_data(hwif, index); 66157c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz 66257c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz ide_init_port_hw(hwif, hw); 663f01393e48c44e30f7c9a36c8b98a07b0232580feBartlomiej Zolnierkiewicz hwif->quirkproc = quirkproc; 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 665cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz idx[0] = index; 6668447d9d52adbe4c653482bd0d5ccb9b5d26f9c9dBartlomiej Zolnierkiewicz 667c413b9b94d9a8e7548cc4b2e04b7df0439ce76fdBartlomiej Zolnierkiewicz ide_device_add(idx, NULL); 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwifp) 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *hwifp = hwif; 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 672cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz return hwif->present ? index : -1; 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_register_hw); 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Locks for IDE setting functionality 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 681f9383c4269d264c3cf563bd2de365891f6592ebdMatthias KaehlckeDEFINE_MUTEX(ide_setting_mtx); 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 683f9383c4269d264c3cf563bd2de365891f6592ebdMatthias KaehlckeEXPORT_SYMBOL_GPL(ide_setting_mtx); 6841497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 6861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_spin_wait_hwgroup - wait for group 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @drive: drive in the group 6881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Wait for an IDE device group to go non busy and then return 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * holding the ide_lock which guards the hwgroup->busy status 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and right to use it. 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ide_spin_wait_hwgroup (ide_drive_t *drive) 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwgroup_t *hwgroup = HWGROUP(drive); 6971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long timeout = jiffies + (3 * HZ); 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (hwgroup->busy) { 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long lflags; 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 7041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_set(lflags); 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (time_after(jiffies, timeout)) { 7061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_restore(lflags); 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "%s: channel busy\n", drive->name); 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_restore(lflags); 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_spin_wait_hwgroup); 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7187662d046df09e80680b77b68de896beab45e675eBartlomiej Zolnierkiewiczint set_io_32bit(ide_drive_t *drive, int arg) 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7201497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (drive->no_io_32bit) 7211497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EPERM; 7221497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7231497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1)) 7241497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 7251497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 726644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz if (ide_spin_wait_hwgroup(drive)) 727644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz return -EBUSY; 728644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->io_32bit = arg; 730644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz 731644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 732644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7361497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewiczstatic int set_ksettings(ide_drive_t *drive, int arg) 7371497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz{ 7381497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1) 7391497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 7401497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7411497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (ide_spin_wait_hwgroup(drive)) 7421497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EBUSY; 7431497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz drive->keep_settings = arg; 7441497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 7451497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7461497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return 0; 7471497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz} 7481497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7497662d046df09e80680b77b68de896beab45e675eBartlomiej Zolnierkiewiczint set_using_dma(ide_drive_t *drive, int arg) 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEDMA 7528799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz ide_hwif_t *hwif = drive->hwif; 7538799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz int err = -EPERM; 7548799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 7551497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1) 7561497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 7571497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!drive->id || !(drive->id->capability & 1)) 7598799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz goto out; 7608799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 76115ce926ada545cb078711bd9a18c083c93fa01d7Bartlomiej Zolnierkiewicz if (hwif->dma_host_set == NULL) 7628799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz goto out; 7638799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 7648799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz err = -EBUSY; 7658799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz if (ide_spin_wait_hwgroup(drive)) 7668799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz goto out; 7678799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz /* 7688799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz * set ->busy flag, unlock and let it ride 7698799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz */ 7708799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz hwif->hwgroup->busy = 1; 7718799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 7728799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 7738799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz err = 0; 7748799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (arg) { 77623b1bd459c9e8a925381960f0b69ac85468c3af1Bartlomiej Zolnierkiewicz if (ide_set_dma(drive)) 7778799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz err = -EIO; 7787469aaf6a30f4187ed6de7c0aed5c2dd2d1c2d31Bartlomiej Zolnierkiewicz } else 7797469aaf6a30f4187ed6de7c0aed5c2dd2d1c2d31Bartlomiej Zolnierkiewicz ide_dma_off(drive); 7808799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 7818799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz /* 7828799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz * lock, clear ->busy flag and unlock before leaving 7838799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz */ 7848799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz spin_lock_irq(&ide_lock); 7858799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz hwif->hwgroup->busy = 0; 7868799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 7878799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewiczout: 7888799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz return err; 7891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 7901497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1) 7911497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 7921497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 7941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 7951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7977662d046df09e80680b77b68de896beab45e675eBartlomiej Zolnierkiewiczint set_pio_mode(ide_drive_t *drive, int arg) 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request rq; 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8011497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 255) 8021497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 8031497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 80426bcb879c03254545a19c6700fe5bcef6f21e7b1Bartlomiej Zolnierkiewicz if (drive->hwif->set_pio_mode == NULL) 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOSYS; 80626bcb879c03254545a19c6700fe5bcef6f21e7b1Bartlomiej Zolnierkiewicz 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (drive->special.b.set_tune) 8081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 809145b75e9aedbe36c55e45da8564dcd0814bdd89eBartlomiej Zolnierkiewicz 8101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_drive_cmd(&rq); 811852738f39258deafb3d89c187cb1a4050820d555Bartlomiej Zolnierkiewicz rq.cmd_type = REQ_TYPE_ATA_TASKFILE; 812145b75e9aedbe36c55e45da8564dcd0814bdd89eBartlomiej Zolnierkiewicz 8131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->tune_req = (u8) arg; 8141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->special.b.set_tune = 1; 8151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) ide_do_drive_cmd(drive, &rq, ide_wait); 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8191497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewiczstatic int set_unmaskirq(ide_drive_t *drive, int arg) 8201497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz{ 8211497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (drive->no_unmask) 8221497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EPERM; 8231497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8241497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1) 8251497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 8261497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8271497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (ide_spin_wait_hwgroup(drive)) 8281497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EBUSY; 8291497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz drive->unmask = arg; 8301497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 8311497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8321497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return 0; 8331497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz} 8341497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * system_bus_clock - clock guess 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 8381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * External version of the bus clock guess used by very old IDE drivers 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for things like VLB timings. Should not be used. 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint system_bus_clock (void) 8431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 844537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz return system_bus_speed; 8451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(system_bus_clock); 8481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 849b887d2e63c8857149ef59eb6e05adfaa018b8ebfDavid Brownellstatic int generic_ide_suspend(struct device *dev, pm_message_t mesg) 8501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive = dev->driver_data; 852e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_hwif_t *hwif = HWIF(drive); 8531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request rq; 8541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request_pm_state rqpm; 8551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_task_t args; 8565e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li int ret; 8571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 858e3a59b4d9378522479609042836ae930305a67feHannes Reinecke /* Call ACPI _GTM only once */ 859e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!(drive->dn % 2)) 860e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_acpi_get_timing(hwif); 861e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rq, 0, sizeof(rq)); 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rqpm, 0, sizeof(rqpm)); 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&args, 0, sizeof(args)); 8654aff5e2333c9a1609662f2091f55c3f6fffdad36Jens Axboe rq.cmd_type = REQ_TYPE_PM_SUSPEND; 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rq.special = &args; 867c00895ab2f08df7044e58ee01c38bf0a661ea0ebJens Axboe rq.data = &rqpm; 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rqpm.pm_step = ide_pm_state_start_suspend; 869b887d2e63c8857149ef59eb6e05adfaa018b8ebfDavid Brownell if (mesg.event == PM_EVENT_PRETHAW) 870b887d2e63c8857149ef59eb6e05adfaa018b8ebfDavid Brownell mesg.event = PM_EVENT_FREEZE; 871b887d2e63c8857149ef59eb6e05adfaa018b8ebfDavid Brownell rqpm.pm_state = mesg.event; 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8735e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li ret = ide_do_drive_cmd(drive, &rq, ide_wait); 8745e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li /* only call ACPI _PS3 after both drivers are suspended */ 8755e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li if (!ret && (((drive->dn % 2) && hwif->drives[0].present 8765e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li && hwif->drives[1].present) 8775e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li || !hwif->drives[0].present 8785e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li || !hwif->drives[1].present)) 8795e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li ide_acpi_set_state(hwif, 0); 8805e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li return ret; 8811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int generic_ide_resume(struct device *dev) 8841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive = dev->driver_data; 886e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_hwif_t *hwif = HWIF(drive); 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request rq; 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request_pm_state rqpm; 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_task_t args; 8900d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager int err; 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 892e3a59b4d9378522479609042836ae930305a67feHannes Reinecke /* Call ACPI _STM only once */ 8935e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li if (!(drive->dn % 2)) { 8945e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li ide_acpi_set_state(hwif, 1); 895e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_acpi_push_timing(hwif); 8965e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li } 897e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 898e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_acpi_exec_tfs(drive); 899e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 9001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rq, 0, sizeof(rq)); 9011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rqpm, 0, sizeof(rqpm)); 9021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&args, 0, sizeof(args)); 9034aff5e2333c9a1609662f2091f55c3f6fffdad36Jens Axboe rq.cmd_type = REQ_TYPE_PM_RESUME; 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rq.special = &args; 905c00895ab2f08df7044e58ee01c38bf0a661ea0ebJens Axboe rq.data = &rqpm; 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rqpm.pm_step = ide_pm_state_start_resume; 907ca078bae813dd46c0f9b102fdfb4a3384641ff48Pavel Machek rqpm.pm_state = PM_EVENT_ON; 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9090d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager err = ide_do_drive_cmd(drive, &rq, ide_head_wait); 9100d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager 911ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki if (err == 0 && dev->driver) { 912ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki ide_driver_t *drv = to_ide_driver(dev->driver); 913ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki 914ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki if (drv->resume) 915ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki drv->resume(drive); 916ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki } 9170d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager 9180d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager return err; 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device *bdev, 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int cmd, unsigned long arg) 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9241497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz unsigned long flags; 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_driver_t *drv; 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __user *p = (void __user *)arg; 9271985026d32e69ed6dac3ba0ef8ff10366f060ed3Linus Torvalds int err = 0, (*setfunc)(ide_drive_t *, int); 9281497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz u8 *val; 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9301497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz switch (cmd) { 9311497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_GET_32BIT: val = &drive->io_32bit; goto read_val; 9321497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_GET_KEEPSETTINGS: val = &drive->keep_settings; goto read_val; 9331497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_GET_UNMASKINTR: val = &drive->unmask; goto read_val; 9341497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_GET_DMA: val = &drive->using_dma; goto read_val; 9351497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_32BIT: setfunc = set_io_32bit; goto set_val; 9361497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_KEEPSETTINGS: setfunc = set_ksettings; goto set_val; 9371497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_PIO_MODE: setfunc = set_pio_mode; goto set_val; 9381497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_UNMASKINTR: setfunc = set_unmaskirq; goto set_val; 9391497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_DMA: setfunc = set_using_dma; goto set_val; 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_OBSOLETE_IDENTITY: 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_GET_IDENTITY: 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bdev != bdev->bd_contains) 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 9471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (drive->id_read == 0) 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMSG; 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_to_user(p, drive->id, (cmd == HDIO_GET_IDENTITY) ? sizeof(*drive->id) : 142)) 9501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 9511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_GET_NICE: 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return put_user(drive->dsc_overlap << IDE_NICE_DSC_OVERLAP | 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->atapi_overlap << IDE_NICE_ATAPI_OVERLAP | 95692b83c8f3219c36d61a6600ceb422e65c409be59Bartlomiej Zolnierkiewicz drive->nice1 << IDE_NICE_1, 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (long __user *) arg); 9581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_IDE_TASK_IOCTL 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_TASKFILE: 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 9621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch(drive->media) { 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case ide_disk: 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_taskfile_ioctl(drive, cmd, arg); 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMSG; 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_IDE_TASK_IOCTL */ 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_CMD: 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_cmd_ioctl(drive, cmd, arg); 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_TASK: 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_task_ioctl(drive, cmd, arg); 9791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_SCAN_HWIF: 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw_regs_t hw; 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int args[3]; 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) return -EACCES; 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_from_user(args, p, 3 * sizeof(int))) 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&hw, 0, sizeof(hw)); 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_hwif_ports(&hw, (unsigned long) args[0], 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (unsigned long) args[1], NULL); 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw.irq = args[2]; 991cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz if (ide_register_hw(&hw, NULL, NULL) == -1) 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EIO; 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_UNREGISTER_HWIF: 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) return -EACCES; 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* (arg > MAX_HWIFS) checked in function */ 998f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz ide_unregister(arg, 1, 1); 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_SET_NICE: 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) return -EACCES; 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (arg != (arg & ((1 << IDE_NICE_DSC_OVERLAP) | (1 << IDE_NICE_1)))) 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->dsc_overlap = (arg >> IDE_NICE_DSC_OVERLAP) & 1; 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drv = *(ide_driver_t **)bdev->bd_disk->private_data; 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (drive->dsc_overlap && !drv->supports_dsc_overlap) { 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->dsc_overlap = 0; 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->nice1 = (arg >> IDE_NICE_1) & 1; 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_RESET: 1013dbecebca1914f414008553b57aefde95b70f9142Bartlomiej Zolnierkiewicz if (!capable(CAP_SYS_ADMIN)) 1014dbecebca1914f414008553b57aefde95b70f9142Bartlomiej Zolnierkiewicz return -EACCES; 1015dbecebca1914f414008553b57aefde95b70f9142Bartlomiej Zolnierkiewicz 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Abort the current command on the 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * group if there is one, taking 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * care not to allow anything else 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to be queued and to die on the 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * spot if we miss one somehow 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&ide_lock, flags); 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1026913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox if (HWGROUP(drive)->resetting) { 1027913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox spin_unlock_irqrestore(&ide_lock, flags); 1028913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox return -EBUSY; 1029913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox } 1030913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_abort(drive, "drive reset"); 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1033125e18745f16685f69a34fd6130d47598fc4bf54Eric Sesterhenn BUG_ON(HWGROUP(drive)->handler); 1034dbecebca1914f414008553b57aefde95b70f9142Bartlomiej Zolnierkiewicz 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Ensure nothing gets queued after we 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drop the lock. Reset will clear the busy */ 1037dbecebca1914f414008553b57aefde95b70f9142Bartlomiej Zolnierkiewicz 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds HWGROUP(drive)->busy = 1; 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&ide_lock, flags); 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) ide_do_reset(drive); 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_GET_BUSSTATE: 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (put_user(HWIF(drive)->bus_state, (long __user *)arg)) 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_SET_BUSSTATE: 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (HWIF(drive)->busproc) 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return HWIF(drive)->busproc(drive, (int)arg); 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EOPNOTSUPP; 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10591497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 10601497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewiczread_val: 1061f9383c4269d264c3cf563bd2de365891f6592ebdMatthias Kaehlcke mutex_lock(&ide_setting_mtx); 10621497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz spin_lock_irqsave(&ide_lock, flags); 10631497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz err = *val; 10641497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz spin_unlock_irqrestore(&ide_lock, flags); 1065f9383c4269d264c3cf563bd2de365891f6592ebdMatthias Kaehlcke mutex_unlock(&ide_setting_mtx); 10661497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return err >= 0 ? put_user(err, (long __user *)arg) : err; 10671497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 10681497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewiczset_val: 10691497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (bdev != bdev->bd_contains) 10701497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz err = -EINVAL; 10711497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz else { 10721497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (!capable(CAP_SYS_ADMIN)) 10731497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz err = -EACCES; 10741497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz else { 1075f9383c4269d264c3cf563bd2de365891f6592ebdMatthias Kaehlcke mutex_lock(&ide_setting_mtx); 10761497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz err = setfunc(drive, arg); 1077f9383c4269d264c3cf563bd2de365891f6592ebdMatthias Kaehlcke mutex_unlock(&ide_setting_mtx); 10781497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz } 10791497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz } 10801497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return err; 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(generic_ide_ioctl); 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * stridx() returns the offset of c within s, 10871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or -1 if c is '\0' or not found within s. 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init stridx (const char *s, char c) 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *i = strchr(s, c); 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (i && c) ? i - s : -1; 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * match_parm() does parsing for ide_setup(): 10971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1. the first char of s must be '='. 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2. if the remainder matches one of the supplied keywords, 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the index (1 based) of the keyword is negated and returned. 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3. if the remainder is a series of no more than max_vals numbers 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * separated by commas, the numbers are saved in vals[] and a 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * count of how many were saved is returned. Base10 is assumed, 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and base16 is allowed when prefixed with "0x". 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4. otherwise, zero is returned. 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init match_parm (char *s, const char *keywords[], int vals[], int max_vals) 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static const char *decimal = "0123456789"; 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static const char *hex = "0123456789abcdef"; 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, n; 11121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (*s++ == '=') { 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Try matching against the supplied keywords, 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and return -(index+1) if we match one 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (keywords != NULL) { 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; *keywords != NULL; ++i) { 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, *keywords++)) 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -(i+1); 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for a series of no more than "max_vals" 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * numeric values separated by commas, in base10, 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or base16 when prefixed with "0x". 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Return a count of how many were found. 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (n = 0; (i = stridx(decimal, *s)) >= 0;) { 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[n] = i; 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((i = stridx(decimal, *++s)) >= 0) 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[n] = (vals[n] * 10) + i; 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (*s == 'x' && !vals[n]) { 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((i = stridx(hex, *++s)) >= 0) 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[n] = (vals[n] * 0x10) + i; 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++n == max_vals) 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (*s == ',' || *s == ';') 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ++s; 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!*s) 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return n; 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* zero = nothing matched */ 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1149849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_ali14xx; 1150849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_umc8672; 1151849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_dtc2278; 1152849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_ht6560b; 1153849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_qd65xx; 1154ade2daf9c6e57845fe83a24e0a9fa1c03c6e91b1Bartlomiej Zolnierkiewiczextern int cmd640_vlb; 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __initdata is_chipset_set[MAX_HWIFS]; 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_setup() gets called VERY EARLY during initialization, 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to handle kernel "command line" strings beginning with "hdx=" or "ide". 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11621c10e93828f8861c3f58d647e259de0e2c63b930Randy Dunlap * Remember to update Documentation/ide/ide.txt if you change something here. 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init ide_setup(char *s) 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, vals[3]; 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif; 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive; 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int hw, unit; 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char max_drive = 'a' + ((MAX_HWIFS * MAX_DRIVES) - 1); 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char max_hwif = '0' + (MAX_HWIFS - 1); 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(s,"hd",2) == 0 && s[2] == '=') /* hd= is for hd.c */ 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* driver and not us */ 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(s,"ide",3) && strncmp(s,"idebus",6) && strncmp(s,"hd",2)) 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "ide_setup: %s", s); 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_ide_data (); 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEDOUBLER 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, "ide=doubler")) { 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern int ide_doubler; 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" : Enabled support for IDE doublers\n"); 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_doubler = 1; 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_IDEDOUBLER */ 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, "ide=nodma")) { 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" : Prevented DMA\n"); 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds noautodma = 1; 1196c223701cf6c706f42840631c1ca919a18e6e2800Bartlomiej Zolnierkiewicz goto obsolete_option; 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1199e3a59b4d9378522479609042836ae930305a67feHannes Reinecke#ifdef CONFIG_BLK_DEV_IDEACPI 1200e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!strcmp(s, "ide=noacpi")) { 1201e3a59b4d9378522479609042836ae930305a67feHannes Reinecke //printk(" : Disable IDE ACPI support.\n"); 1202e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_noacpi = 1; 1203e3a59b4d9378522479609042836ae930305a67feHannes Reinecke return 1; 1204e3a59b4d9378522479609042836ae930305a67feHannes Reinecke } 1205e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!strcmp(s, "ide=acpigtf")) { 1206e3a59b4d9378522479609042836ae930305a67feHannes Reinecke //printk(" : Enable IDE ACPI _GTF support.\n"); 1207e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_noacpitfs = 0; 1208e3a59b4d9378522479609042836ae930305a67feHannes Reinecke return 1; 1209e3a59b4d9378522479609042836ae930305a67feHannes Reinecke } 1210e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!strcmp(s, "ide=acpionboot")) { 1211e3a59b4d9378522479609042836ae930305a67feHannes Reinecke //printk(" : Call IDE ACPI methods on boot.\n"); 1212e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_noacpionboot = 0; 1213e3a59b4d9378522479609042836ae930305a67feHannes Reinecke return 1; 1214e3a59b4d9378522479609042836ae930305a67feHannes Reinecke } 1215e3a59b4d9378522479609042836ae930305a67feHannes Reinecke#endif /* CONFIG_BLK_DEV_IDEACPI */ 1216e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for drive options: "hdx=" 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[0] == 'h' && s[1] == 'd' && s[2] >= 'a' && s[2] <= max_drive) { 12211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *hd_words[] = { 1222c223701cf6c706f42840631c1ca919a18e6e2800Bartlomiej Zolnierkiewicz "none", "noprobe", "nowerr", "cdrom", "nodma", 12239e47be0c97f7357b80e91dc0632e9cce2eb025e0Bartlomiej Zolnierkiewicz "autotune", "noautotune", "-8", "-9", "-10", 1224361934849e9c0418950bedf667732f36337d88b9Jens Axboe "noflush", "remap", "remap63", "scsi", NULL }; 12251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit = s[2] - 'a'; 12261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw = unit / MAX_DRIVES; 12271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit = unit % MAX_DRIVES; 12281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[hw]; 12291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive = &hwif->drives[unit]; 12301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(s + 4, "ide-", 4) == 0) { 12311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(drive->driver_req, s + 4, sizeof(drive->driver_req)); 123215220d9b5a7e6f4ff251350b285674ed676e0d3dBartlomiej Zolnierkiewicz goto obsolete_option; 12331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (match_parm(&s[3], hd_words, vals, 3)) { 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -1: /* "none" */ 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -2: /* "noprobe" */ 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->noprobe = 1; 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -3: /* "nowerr" */ 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->bad_wstat = BAD_R_STAT; 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 12431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -4: /* "cdrom" */ 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->present = 1; 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->media = ide_cdrom; 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* an ATAPI device ignores DRDY */ 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ready_stat = 0; 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 1250c223701cf6c706f42840631c1ca919a18e6e2800Bartlomiej Zolnierkiewicz case -5: /* nodma */ 1251c223701cf6c706f42840631c1ca919a18e6e2800Bartlomiej Zolnierkiewicz drive->nodma = 1; 1252c223701cf6c706f42840631c1ca919a18e6e2800Bartlomiej Zolnierkiewicz goto done; 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -6: /* "autotune" */ 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->autotune = IDE_TUNE_AUTO; 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -7: /* "noautotune" */ 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->autotune = IDE_TUNE_NOAUTO; 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 1259361934849e9c0418950bedf667732f36337d88b9Jens Axboe case -11: /* noflush */ 1260361934849e9c0418950bedf667732f36337d88b9Jens Axboe drive->noflush = 1; 1261361934849e9c0418950bedf667732f36337d88b9Jens Axboe goto done; 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -12: /* "remap" */ 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->remap_0_to_1 = 1; 1264d708c40da83a86551556999e924e27fdc43dad71Bartlomiej Zolnierkiewicz goto obsolete_option; 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -13: /* "remap63" */ 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->sect0 = 63; 1267d708c40da83a86551556999e924e27fdc43dad71Bartlomiej Zolnierkiewicz goto obsolete_option; 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -14: /* "scsi" */ 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->scsi = 1; 127015220d9b5a7e6f4ff251350b285674ed676e0d3dBartlomiej Zolnierkiewicz goto obsolete_option; 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 3: /* cyl,head,sect */ 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->media = ide_disk; 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ready_stat = READY_STAT; 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->cyl = drive->bios_cyl = vals[0]; 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->head = drive->bios_head = vals[1]; 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->sect = drive->bios_sect = vals[2]; 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->present = 1; 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->forced_geom = 1; 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 12831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[0] != 'i' || s[1] != 'd' || s[2] != 'e') 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 12881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 12891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for bus speed option: "idebus=" 12901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[3] == 'b' && s[4] == 'u' && s[5] == 's') { 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (match_parm(&s[6], NULL, vals, 1) != 1) 12931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (vals[0] >= 20 && vals[0] <= 66) { 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds idebus_parameter = vals[0]; 12961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- BAD BUS SPEED! Expected value from 20 to 66"); 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 12991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for interface options: "idex=" 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[3] >= '0' && s[3] <= max_hwif) { 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Be VERY CAREFUL changing this: note hardcoded indexes below 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (-8, -9, -10) are reserved to ease the hardcoding. 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static const char *ide_words[] = { 1309b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz "noprobe", "serialize", "minus3", "minus4", 13101b5169405e50b98b2bd1e4f86c7706ea24a59193Bartlomiej Zolnierkiewicz "reset", "minus6", "ata66", "minus8", "minus9", 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "minus10", "four", "qd65xx", "ht6560b", "cmd640_vlb", 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "dtc2278", "umc8672", "ali14xx", NULL }; 13139239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz 13149239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz hw_regs_t hwregs; 13159239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw = s[3] - '0'; 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[hw]; 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = match_parm(&s[4], ide_words, vals, 3); 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Cryptic check to ensure chipset not already set for hwif. 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: we can't depend on hwif->chipset here. 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((i >= -18 && i <= -11) || (i > 0 && i <= 3)) { 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* chipset already specified */ 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (is_chipset_set[hw]) 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i > -18 && i <= -11) { 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* these drivers are for "ide0=" only */ 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hw != 0) 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_hwif; 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* chipset already specified for 2nd port */ 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (is_chipset_set[hw+1]) 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds is_chipset_set[hw] = 1; 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("\n"); 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (i) { 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_ALI14XX 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -17: /* "ali14xx" */ 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_ali14xx = 1; 13449c027c684bd01b91a7aecc63161b56071685ce7dBartlomiej Zolnierkiewicz goto obsolete_option; 13451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_UMC8672 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -16: /* "umc8672" */ 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_umc8672 = 1; 13499c027c684bd01b91a7aecc63161b56071685ce7dBartlomiej Zolnierkiewicz goto obsolete_option; 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_DTC2278 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -15: /* "dtc2278" */ 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_dtc2278 = 1; 13549c027c684bd01b91a7aecc63161b56071685ce7dBartlomiej Zolnierkiewicz goto obsolete_option; 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_CMD640 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -14: /* "cmd640_vlb" */ 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd640_vlb = 1; 13599c027c684bd01b91a7aecc63161b56071685ce7dBartlomiej Zolnierkiewicz goto obsolete_option; 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_HT6560B 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -13: /* "ht6560b" */ 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_ht6560b = 1; 13649c027c684bd01b91a7aecc63161b56071685ce7dBartlomiej Zolnierkiewicz goto obsolete_option; 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_QD65XX 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -12: /* "qd65xx" */ 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_qd65xx = 1; 13699c027c684bd01b91a7aecc63161b56071685ce7dBartlomiej Zolnierkiewicz goto obsolete_option; 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_4DRIVES 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -11: /* "four" drives on one set of ports */ 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *mate = &ide_hwifs[hw^1]; 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mate->drives[0].select.all ^= 0x20; 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mate->drives[1].select.all ^= 0x20; 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = mate->chipset = ide_4drives; 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mate->irq = hwif->irq; 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(mate->io_ports, hwif->io_ports, sizeof(hwif->io_ports)); 1380b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz hwif->mate = mate; 1381b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz mate->mate = hwif; 1382b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz hwif->serialized = mate->serialized = 1; 1383b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz goto obsolete_option; 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_4DRIVES */ 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -10: /* minus10 */ 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -9: /* minus9 */ 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -8: /* minus8 */ 13891b5169405e50b98b2bd1e4f86c7706ea24a59193Bartlomiej Zolnierkiewicz case -6: 1390b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz case -4: 1391b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz case -3: 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -7: /* ata66 */ 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEPCI 139549521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz /* 139649521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz * Use ATA_CBL_PATA40_SHORT so drive side 139749521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz * cable detection is also overriden. 139849521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz */ 139949521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz hwif->cbl = ATA_CBL_PATA40_SHORT; 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 14011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_hwif; 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -5: /* "reset" */ 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->reset = 1; 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -2: /* "serialize" */ 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mate = &ide_hwifs[hw^1]; 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mate->mate = hwif; 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->serialized = hwif->mate->serialized = 1; 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -1: /* "noprobe" */ 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 1; 1415c53ea18dc29a1ac075119f651d6ac4386a549a34Bartlomiej Zolnierkiewicz goto obsolete_option; 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 1: /* base */ 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[1] = vals[0] + 0x206; /* default ctl */ 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 2: /* base,ctl */ 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[2] = 0; /* default irq = probe for it */ 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 3: /* base,ctl,irq */ 14229239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz memset(&hwregs, 0, sizeof(hwregs)); 14239239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz ide_init_hwif_ports(&hwregs, vals[0], vals[1], &hwif->irq); 14249239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz memcpy(hwif->io_ports, hwregs.io_ports, sizeof(hwif->io_ports)); 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->irq = vals[2]; 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = ide_forced; 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0: goto bad_option; 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- SUPPORT NOT CONFIGURED IN THIS KERNEL\n"); 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsbad_option: 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- BAD OPTION\n"); 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsobsolete_option: 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- OBSOLETE OPTION, WILL BE REMOVED SOON!\n"); 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsbad_hwif: 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("-- NOT SUPPORTED ON ide%d", hw); 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdone: 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("\n"); 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_lock); 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14518604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewiczstatic int ide_bus_match(struct device *dev, struct device_driver *drv) 14528604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz{ 14538604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz return 1; 14548604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz} 14558604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz 1456263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic char *media_string(ide_drive_t *drive) 1457263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1458263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers switch (drive->media) { 1459263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers case ide_disk: 1460263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "disk"; 1461263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers case ide_cdrom: 1462263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "cdrom"; 1463263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers case ide_tape: 1464263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "tape"; 1465263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers case ide_floppy: 1466263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "floppy"; 1467a7a832de9e9624bcf069a5369c3c38ba2f44d460Danny Kukawka case ide_optical: 1468a7a832de9e9624bcf069a5369c3c38ba2f44d460Danny Kukawka return "optical"; 1469263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers default: 1470263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "UNKNOWN"; 1471263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers } 1472263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1473263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1474263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic ssize_t media_show(struct device *dev, struct device_attribute *attr, char *buf) 1475263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1476263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 1477263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return sprintf(buf, "%s\n", media_string(drive)); 1478263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1479263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1480263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic ssize_t drivename_show(struct device *dev, struct device_attribute *attr, char *buf) 1481263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1482263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 1483263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return sprintf(buf, "%s\n", drive->name); 1484263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1485263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1486263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) 1487263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1488263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 1489263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return sprintf(buf, "ide:m-%s\n", media_string(drive)); 1490263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1491263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1492e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewiczstatic ssize_t model_show(struct device *dev, struct device_attribute *attr, 1493e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz char *buf) 1494e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz{ 1495e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz ide_drive_t *drive = to_ide_device(dev); 1496e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz return sprintf(buf, "%s\n", drive->id->model); 1497e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz} 1498e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz 1499e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewiczstatic ssize_t firmware_show(struct device *dev, struct device_attribute *attr, 1500e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz char *buf) 1501e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz{ 1502e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz ide_drive_t *drive = to_ide_device(dev); 1503e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz return sprintf(buf, "%s\n", drive->id->fw_rev); 1504e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz} 1505e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz 1506e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewiczstatic ssize_t serial_show(struct device *dev, struct device_attribute *attr, 1507e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz char *buf) 1508e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz{ 1509e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz ide_drive_t *drive = to_ide_device(dev); 1510e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz return sprintf(buf, "%s\n", drive->id->serial_no); 1511e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz} 1512e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz 1513263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic struct device_attribute ide_dev_attrs[] = { 1514263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers __ATTR_RO(media), 1515263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers __ATTR_RO(drivename), 1516263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers __ATTR_RO(modalias), 1517e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz __ATTR_RO(model), 1518e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz __ATTR_RO(firmware), 1519e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz __ATTR(serial, 0400, serial_show, NULL), 1520263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers __ATTR_NULL 1521263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers}; 1522263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 15237eff2e7a8b65c25920207324e56611150eb1cd9aKay Sieversstatic int ide_uevent(struct device *dev, struct kobj_uevent_env *env) 1524263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1525263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 15267eff2e7a8b65c25920207324e56611150eb1cd9aKay Sievers 15277eff2e7a8b65c25920207324e56611150eb1cd9aKay Sievers add_uevent_var(env, "MEDIA=%s", media_string(drive)); 15287eff2e7a8b65c25920207324e56611150eb1cd9aKay Sievers add_uevent_var(env, "DRIVENAME=%s", drive->name); 15297eff2e7a8b65c25920207324e56611150eb1cd9aKay Sievers add_uevent_var(env, "MODALIAS=ide:m-%s", media_string(drive)); 1530263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return 0; 1531263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1532263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 15334031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell Kingstatic int generic_ide_probe(struct device *dev) 15344031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King{ 15354031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_drive_t *drive = to_ide_device(dev); 15364031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_driver_t *drv = to_ide_driver(dev->driver); 15374031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 15384031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King return drv->probe ? drv->probe(drive) : -ENODEV; 15394031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King} 15404031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 15414031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell Kingstatic int generic_ide_remove(struct device *dev) 15424031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King{ 15434031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_drive_t *drive = to_ide_device(dev); 15444031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_driver_t *drv = to_ide_driver(dev->driver); 15454031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 15464031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King if (drv->remove) 15474031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King drv->remove(drive); 15484031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 15494031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King return 0; 15504031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King} 15514031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 15524031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell Kingstatic void generic_ide_shutdown(struct device *dev) 15534031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King{ 15544031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_drive_t *drive = to_ide_device(dev); 15554031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_driver_t *drv = to_ide_driver(dev->driver); 15564031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 15574031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King if (dev->driver && drv->shutdown) 15584031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King drv->shutdown(drive); 15594031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King} 15604031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 15611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct bus_type ide_bus_type = { 15621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "ide", 15638604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz .match = ide_bus_match, 1564263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers .uevent = ide_uevent, 15654031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King .probe = generic_ide_probe, 15664031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King .remove = generic_ide_remove, 15674031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King .shutdown = generic_ide_shutdown, 1568263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers .dev_attrs = ide_dev_attrs, 15691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .suspend = generic_ide_suspend, 15701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .resume = generic_ide_resume, 15711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 15721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15738604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_bus_type); 15748604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz 15751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 15761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is gets invoked once during initialization, to set *everything* up 15771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 15781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init ide_init(void) 15791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1580349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap int ret; 1581349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap 1582eba8ff946177ca38dfde0bf1d8ce0703c45c49b9Bartlomiej Zolnierkiewicz printk(KERN_INFO "Uniform Multi-Platform E-IDE driver\n"); 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds system_bus_speed = ide_system_bus_speed(); 15841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1585537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz printk(KERN_INFO "ide: Assuming %dMHz system bus speed " 1586537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz "for PIO modes%s\n", system_bus_speed, 1587537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz idebus_parameter ? "" : "; override with idebus=xx"); 1588537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz 1589349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap ret = bus_register(&ide_bus_type); 1590349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap if (ret < 0) { 1591349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap printk(KERN_WARNING "IDE: bus_register error: %d\n", ret); 1592349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap return ret; 1593349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap } 15941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_ide_data(); 15961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15975cbf79cdb37be2aa2a1b4fa94144526b14557060Bartlomiej Zolnierkiewicz proc_ide_create(); 15981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *options = NULL; 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(options, charp, 0); 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __init parse_options (char *line) 16081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *next = line; 16101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (line == NULL || !*line) 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 16131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((line = next) != NULL) { 16141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((next = strchr(line,' ')) != NULL) 16151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *next++ = 0; 16161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ide_setup(line)) 16171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk (KERN_INFO "Unknown option '%s'\n", line); 16181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1621fbd8ad30596409070801832335d3ea8cf1513dedSam Ravnborgint __init init_module (void) 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds parse_options(options); 16241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_init(); 16251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1627eb7972271720bfc64dc8bacc5b15f874c0bcc859Al Virovoid __exit cleanup_module (void) 16281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index; 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; ++index) 1632f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz ide_unregister(index, 0, 0); 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds proc_ide_destroy(); 16351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_unregister(&ide_bus_type); 16371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else /* !MODULE */ 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds__setup("", ide_setup); 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(ide_init); 16441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* MODULE */ 1646