ide.c revision 852738f39258deafb3d89c187cb1a4050820d555
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/drivers/ide/ide.c Version 7.00beta2 Mar 05 2003 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 1994-1998 Linus Torvalds & authors (see below) 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mostly written by Mark Lord <mlord@pobox.com> 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and Gadi Oxman <gadio@netvision.net.il> 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and Andre Hedrick <andre@linux-ide.org> 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * See linux/MAINTAINERS for address of current maintainer. 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is the multiple IDE interface driver, as evolved from hd.c. 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * It supports up to MAX_HWIFS IDE interfaces, on one or more IRQs 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (usually 14 & 15). 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There can be up to two drives per interface, as per the ATA-2 spec. 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ... 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * From hd.c: 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | It traverses the request-list, using interrupts to jump between functions. 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | As nearly all functions can be called within interrupts, we may not sleep. 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | Special care is recommended. Have Fun! 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | modified by Drew Eckhardt to check nr of hd's from the CMOS. 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | Thanks to Branko Lankester, lankeste@fwi.uva.nl, who found a bug 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | in the early extended-partition checks and added DM partitions. 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | Early work on error handling by Mika Liljeberg (liljeber@cs.Helsinki.FI). 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | IRQ-unmask, drive-id, multiple-mode, support for ">16 heads", 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | and general streamlining by Mark Lord (mlord@pobox.com). 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * October, 1994 -- Complete line-by-line overhaul for linux 1.1.x, by: 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mark Lord (mlord@pobox.com) (IDE Perf.Pkg) 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Delman Lee (delman@ieee.org) ("Mr. atdisk2") 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Scott Snyder (snyder@fnald0.fnal.gov) (ATAPI IDE cd-rom) 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This was a rewrite of just about everything from hd.c, though some original 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * code is still sprinkled about. Think of it as a major evolution, with 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * inspiration from lots of linux users, esp. hamish@zot.apana.org.au 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define REVISION "Revision: 7.00alpha2" 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define VERSION "Id: ide.c 7.00a2 20020906" 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define _IDE_C /* Tell ide.h it's really us */ 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/timer.h> 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mm.h> 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/interrupt.h> 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/major.h> 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/genhd.h> 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/blkpg.h> 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/delay.h> 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ide.h> 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/completion.h> 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/reboot.h> 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/cdrom.h> 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/seq_file.h> 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/device.h> 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bitops.h> 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/byteorder.h> 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/irq.h> 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* default maximum number of failures */ 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IDE_DEFAULT_MAX_FAILURES 1 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR, 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE2_MAJOR, IDE3_MAJOR, 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE4_MAJOR, IDE5_MAJOR, 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE6_MAJOR, IDE7_MAJOR, 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE8_MAJOR, IDE9_MAJOR }; 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int idebus_parameter; /* holds the "idebus=" parameter */ 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int system_bus_speed; /* holds what we think is VESA/PCI bus speed */ 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 94ef29888ea8e1fdc499e995260195b66fc91d2728Matthias KaehlckeDEFINE_MUTEX(ide_cfg_mtx); 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock); 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 976d208b39c45edee5def6c201fcd51561c5a39828Bartlomiej Zolnierkiewicz#ifdef CONFIG_IDEPCI_PCIBUS_ORDER 98ade2daf9c6e57845fe83a24e0a9fa1c03c6e91b1Bartlomiej Zolnierkiewiczint ide_scan_direction; /* THIS was formerly 2.2.x pci=reverse */ 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint noautodma = 0; 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 103e3a59b4d9378522479609042836ae930305a67feHannes Reinecke#ifdef CONFIG_BLK_DEV_IDEACPI 104e3a59b4d9378522479609042836ae930305a67feHannes Reineckeint ide_noacpi = 0; 105e3a59b4d9378522479609042836ae930305a67feHannes Reineckeint ide_noacpitfs = 1; 106e3a59b4d9378522479609042836ae930305a67feHannes Reineckeint ide_noacpionboot = 1; 107e3a59b4d9378522479609042836ae930305a67feHannes Reinecke#endif 108e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is declared extern in ide.h, for access by other IDE modules: 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldside_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */ 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_hwifs); 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Do not even *think* about calling this! 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 119cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewiczvoid ide_init_port_data(ide_hwif_t *hwif, unsigned int index) 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int unit; 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* bulk initialize hwif & drive info with zeros */ 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(hwif, 0, sizeof(ide_hwif_t)); 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* fill in any non-zero initial values */ 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->index = index; 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->major = ide_hwif_to_major[index]; 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[0] = 'i'; 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[1] = 'd'; 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[2] = 'e'; 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[3] = '0' + index; 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->bus_state = BUSSTATE_ON; 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 137f36d4024caa3790606e43228a574157c45b73b22Aleksey Makarov init_completion(&hwif->gendev_rel_comp); 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default_hwif_iops(hwif); 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default_hwif_transport(hwif); 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (unit = 0; unit < MAX_DRIVES; ++unit) { 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive = &hwif->drives[unit]; 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->media = ide_disk; 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->select.all = (unit<<4)|0xa0; 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->hwif = hwif; 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ctl = 0x08; 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ready_stat = READY_STAT; 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->bad_wstat = BAD_W_STAT; 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->special.b.recalibrate = 1; 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->special.b.set_geometry = 1; 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->name[0] = 'h'; 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->name[1] = 'd'; 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->name[2] = 'a' + (index * MAX_DRIVES) + unit; 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->max_failures = IDE_DEFAULT_MAX_FAILURES; 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->using_dma = 0; 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->vdma = 0; 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds INIT_LIST_HEAD(&drive->list); 159f36d4024caa3790606e43228a574157c45b73b22Aleksey Makarov init_completion(&drive->gendev_rel_comp); 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 162cbb010c180294a5242a7681555c28737d9dd26abBartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_init_port_data); 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void init_hwif_default(ide_hwif_t *hwif, unsigned int index) 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw_regs_t hw; 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&hw, 0, sizeof(hw_regs_t)); 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, &hwif->irq); 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(hwif->io_ports, hw.io_ports, sizeof(hw.io_ports)); 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET]; 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_HD 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->io_ports[IDE_DATA_OFFSET] == HD_DATA) 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 1; /* may be overridden by ide_setup() */ 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * init_ide_data() sets reasonable default values into all fields 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of all instances of the hwifs and drives, but only on the first call. 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Subsequent calls have no effect (they don't wipe out anything). 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine is normally called at driver initialization time, 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but may also be called MUCH earlier during kernel "command-line" 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parameter processing. As such, we cannot depend on any other parts 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of the kernel (such as memory allocation) to be functioning yet. 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is too bad, as otherwise we could dynamically allocate the 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_drive_t structs as needed, rather than always consuming memory 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for the max possible number (MAX_HWIFS * MAX_DRIVES) of them. 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: We should stuff the setup data into __init and copy the 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * relevant hwifs/allocate them properly during boot. 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAGIC_COOKIE 0x12345678 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __init init_ide_data (void) 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif; 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int index; 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static unsigned long magic_cookie = MAGIC_COOKIE; 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (magic_cookie != MAGIC_COOKIE) 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; /* already initialized */ 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds magic_cookie = 0; 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Initialise all interface structures */ 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; ++index) { 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[index]; 212cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz ide_init_port_data(hwif, index); 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_default(hwif, index); 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if !defined(CONFIG_PPC32) || !defined(CONFIG_PCI) 2159239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz hwif->irq = 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_default_irq(hwif->io_ports[IDE_DATA_OFFSET]); 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_system_bus_speed - guess bus speed 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_system_bus_speed() returns what we think is the system VESA/PCI 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bus speed (in MHz). This is used for calculating interface PIO timings. 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The default is 40 for known PCI systems, 50 otherwise. 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The "idebus=xx" parameter can be used to override this value. 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The actual value to be used is computed/displayed the first time 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * through. Drivers should only use this as a last resort. 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns a guessed speed in MHz. 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ide_system_bus_speed(void) 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static struct pci_device_id pci_default[] = { 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { PCI_DEVICE(PCI_ANY_ID, PCI_ANY_ID) }, 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { } 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }; 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define pci_default 0 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PCI */ 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!system_bus_speed) { 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (idebus_parameter) { 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* user supplied value */ 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds system_bus_speed = idebus_parameter; 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (pci_dev_present(pci_default)) { 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* safe default value for PCI */ 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds system_bus_speed = 33; 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* safe default value for VESA and PCI */ 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds system_bus_speed = 50; 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "ide: Assuming %dMHz system bus speed " 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "for PIO modes%s\n", system_bus_speed, 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds idebus_parameter ? "" : "; override with idebus=xx"); 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return system_bus_speed; 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 263baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewiczide_hwif_t * ide_find_port(unsigned long base) 264baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz{ 265baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz ide_hwif_t *hwif; 266baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz int i; 267baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz 268baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz for (i = 0; i < MAX_HWIFS; i++) { 269baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz hwif = &ide_hwifs[i]; 270baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz if (hwif->io_ports[IDE_DATA_OFFSET] == base) 271baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz goto found; 272baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz } 273baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz 274baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz for (i = 0; i < MAX_HWIFS; i++) { 275baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz hwif = &ide_hwifs[i]; 276baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz if (hwif->io_ports[IDE_DATA_OFFSET] == 0) 277baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz goto found; 278baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz } 279baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz 280baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz hwif = NULL; 281baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewiczfound: 282baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz return hwif; 283baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz} 284baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz 285baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_find_port); 286baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct resource* hwif_request_region(ide_hwif_t *hwif, 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long addr, int num) 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct resource *res = request_region(addr, num, hwif->name); 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!res) 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name, addr, addr+num-1); 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return res; 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_request_regions - request resources for IDE 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hwif: interface to use 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Requests all the needed resources for an interface. 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Right now core IDE code does this work which is deeply wrong. 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MMIO leaves it to the controller driver, 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PIO will migrate this way over time. 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ide_hwif_request_regions(ide_hwif_t *hwif) 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long addr; 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int i; 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3132ad1e558a2305c2b3d5099ee2f4a5929307c20caBartlomiej Zolnierkiewicz if (hwif->mmio) 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[IDE_CONTROL_OFFSET]; 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (addr && !hwif_request_region(hwif, addr, 1)) 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto control_region_busy; 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->straight8 = 0; 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[IDE_DATA_OFFSET]; 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((addr | 7) == hwif->io_ports[IDE_STATUS_OFFSET]) { 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hwif_request_region(hwif, addr, 8)) 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto data_region_busy; 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->straight8 = 1; 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) { 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[i]; 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hwif_request_region(hwif, addr, 1)) { 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (--i) 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(addr, 1); 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto data_region_busy; 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdata_region_busy: 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[IDE_CONTROL_OFFSET]; 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (addr) 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(addr, 1); 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldscontrol_region_busy: 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* If any errors are return, we drop the hwif interface. */ 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_release_regions - free IDE resources 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note that we only release the standard ports, 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and do not even try to handle any extra ports 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * allocated for weird IDE interface chipsets. 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note also that we don't yet handle mmio resources here. More 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * importantly our caller should be doing this so we need to 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * restructure this as a helper function for drivers. 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ide_hwif_release_regions(ide_hwif_t *hwif) 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 i = 0; 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3612ad1e558a2305c2b3d5099ee2f4a5929307c20caBartlomiej Zolnierkiewicz if (hwif->mmio) 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->io_ports[IDE_CONTROL_OFFSET]) 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(hwif->io_ports[IDE_CONTROL_OFFSET], 1); 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->straight8) { 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(hwif->io_ports[IDE_DATA_OFFSET], 8); 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->io_ports[i]) 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(hwif->io_ports[i], 1); 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_restore - restore hwif to template 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hwif: hwif to update 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @tmp_hwif: template 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 379020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov * Restore hwif to a previous state by copying most settings 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * from the template. 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif) 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hwgroup = tmp_hwif->hwgroup; 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->gendev.parent = tmp_hwif->gendev.parent; 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->proc = tmp_hwif->proc; 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->major = tmp_hwif->major; 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->straight8 = tmp_hwif->straight8; 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->bus_state = tmp_hwif->bus_state; 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3956a824c92db4d606c324272c4eed366fb71672440Bartlomiej Zolnierkiewicz hwif->host_flags = tmp_hwif->host_flags; 3966a824c92db4d606c324272c4eed366fb71672440Bartlomiej Zolnierkiewicz 3974099d14322149c7a467e4997b87be4ba8eb78697Bartlomiej Zolnierkiewicz hwif->pio_mask = tmp_hwif->pio_mask; 3984099d14322149c7a467e4997b87be4ba8eb78697Bartlomiej Zolnierkiewicz 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ultra_mask = tmp_hwif->ultra_mask; 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mwdma_mask = tmp_hwif->mwdma_mask; 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->swdma_mask = tmp_hwif->swdma_mask; 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 40349521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz hwif->cbl = tmp_hwif->cbl; 40449521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = tmp_hwif->chipset; 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hold = tmp_hwif->hold; 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEPCI 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->pci_dev = tmp_hwif->pci_dev; 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->cds = tmp_hwif->cds; 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 41326bcb879c03254545a19c6700fe5bcef6f21e7b1Bartlomiej Zolnierkiewicz hwif->set_pio_mode = tmp_hwif->set_pio_mode; 41488b2b32babd46cd54d2de4d17eb869aea3383e11Bartlomiej Zolnierkiewicz hwif->set_dma_mode = tmp_hwif->set_dma_mode; 415b4e44369a380c1836d0983c2a5011099b7b26eb1Sergei Shtylyov hwif->mdma_filter = tmp_hwif->mdma_filter; 4162d5eaa6dd744a641e75503232a01f52d0768884cBartlomiej Zolnierkiewicz hwif->udma_filter = tmp_hwif->udma_filter; 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->selectproc = tmp_hwif->selectproc; 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->reset_poll = tmp_hwif->reset_poll; 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->pre_reset = tmp_hwif->pre_reset; 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->resetproc = tmp_hwif->resetproc; 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->maskproc = tmp_hwif->maskproc; 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->quirkproc = tmp_hwif->quirkproc; 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->busproc = tmp_hwif->busproc; 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ata_input_data = tmp_hwif->ata_input_data; 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ata_output_data = tmp_hwif->ata_output_data; 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->atapi_input_bytes = tmp_hwif->atapi_input_bytes; 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->atapi_output_bytes = tmp_hwif->atapi_output_bytes; 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 43015ce926ada545cb078711bd9a18c083c93fa01d7Bartlomiej Zolnierkiewicz hwif->dma_host_set = tmp_hwif->dma_host_set; 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_setup = tmp_hwif->dma_setup; 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_exec_cmd = tmp_hwif->dma_exec_cmd; 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_start = tmp_hwif->dma_start; 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_end = tmp_hwif->ide_dma_end; 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_test_irq = tmp_hwif->ide_dma_test_irq; 436f0dd8712eb8cc5687b4582fbc41cfbcd55bba0d2Albert Lee hwif->ide_dma_clear_irq = tmp_hwif->ide_dma_clear_irq; 437841d2a9bf16471716ba3a5172d24aa40a2ea9398Sergei Shtylyov hwif->dma_lost_irq = tmp_hwif->dma_lost_irq; 438c283f5dbe31920ca70b80a594a97bfaa2a28be13Sergei Shtylyov hwif->dma_timeout = tmp_hwif->dma_timeout; 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTB = tmp_hwif->OUTB; 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTBSYNC = tmp_hwif->OUTBSYNC; 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTW = tmp_hwif->OUTW; 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTSW = tmp_hwif->OUTSW; 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTSL = tmp_hwif->OUTSL; 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INB = tmp_hwif->INB; 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INW = tmp_hwif->INW; 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INSW = tmp_hwif->INSW; 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INSL = tmp_hwif->INSL; 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->sg_max_nents = tmp_hwif->sg_max_nents; 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mmio = tmp_hwif->mmio; 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->rqsize = tmp_hwif->rqsize; 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef CONFIG_BLK_DEV_IDECS 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->irq = tmp_hwif->irq; 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_base = tmp_hwif->dma_base; 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_command = tmp_hwif->dma_command; 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor1 = tmp_hwif->dma_vendor1; 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_status = tmp_hwif->dma_status; 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor3 = tmp_hwif->dma_vendor3; 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_prdtable = tmp_hwif->dma_prdtable; 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->config_data = tmp_hwif->config_data; 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->select_data = tmp_hwif->select_data; 469020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov hwif->extra_base = tmp_hwif->extra_base; 470020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov hwif->extra_ports = tmp_hwif->extra_ports; 4711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hwif_data = tmp_hwif->hwif_data; 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 476020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov * ide_unregister - free an IDE interface 4771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @index: index of interface (will change soon to a pointer) 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Perform the final unregister of an IDE interface. At the moment 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we don't refcount interfaces so this will also get split up. 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Locking: 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The caller must not hold the IDE locks 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The drive present/vanishing is not yet properly locked 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Take care with the callbacks. These have been split to avoid 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * deadlocking the IDE layer. The shutdown callback is called 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * before we take the lock and free resources. It is up to the 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * caller to be sure there is no pending I/O here, and that 489020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov * the interface will not be reopened (present/vanishing locking 490020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov * isn't yet done BTW). After we commit to the final kill we 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * call the cleanup callback with the ide locks held. 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Unregister restores the hwif structures to the default state. 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is raving bonkers. 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ide_unregister(unsigned int index) 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive; 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif, *g; 501ef29888ea8e1fdc499e995260195b66fc91d2728Matthias Kaehlcke static ide_hwif_t tmp_hwif; /* protected by ide_cfg_mtx */ 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwgroup_t *hwgroup; 5038604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz int irq_count = 0, unit; 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(index >= MAX_HWIFS); 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(in_interrupt()); 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(irqs_disabled()); 509ef29888ea8e1fdc499e995260195b66fc91d2728Matthias Kaehlcke mutex_lock(&ide_cfg_mtx); 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[index]; 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hwif->present) 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto abort; 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (unit = 0; unit < MAX_DRIVES; ++unit) { 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive = &hwif->drives[unit]; 51694f6c59dcf16f10a20fbe3d1f098b159433f94bdGreg Kroah-Hartman if (!drive->present) 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 5188604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 5198604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz device_unregister(&drive->gendev); 520f36d4024caa3790606e43228a574157c45b73b22Aleksey Makarov wait_for_completion(&drive->gendev_rel_comp); 5218604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz spin_lock_irq(&ide_lock); 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->present = 0; 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5275cbf79cdb37be2aa2a1b4fa94144526b14557060Bartlomiej Zolnierkiewicz ide_proc_unregister_port(hwif); 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwgroup = hwif->hwgroup; 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * free the irq if we were the only hwif using it 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g = hwgroup->hwif; 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (g->irq == hwif->irq) 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ++irq_count; 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g = g->next; 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (g != hwgroup->hwif); 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (irq_count == 1) 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_irq(hwif->irq, hwgroup); 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note that we only release the standard ports, 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and do not even try to handle any extra ports 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * allocated for weird IDE interface chipsets. 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_release_regions(hwif); 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Remove us from the hwgroup, and free 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the hwgroup if we were the only member 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->next == hwif) { 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(hwgroup->hwif != hwif); 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(hwgroup); 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* There is another interface in hwgroup. 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Unlink us, and set hwgroup->drive and ->hwif to 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * something sane. 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g = hwgroup->hwif; 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (g->next != hwif) 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g = g->next; 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g->next = hwif->next; 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwgroup->hwif == hwif) { 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Chose a random hwif for hwgroup->hwif. 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * It's guaranteed that there are no drives 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * left in the hwgroup. 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(hwgroup->drive != NULL); 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwgroup->hwif = g; 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(hwgroup->hwif == hwif); 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* More messed up locking ... */ 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_unregister(&hwif->gendev); 580f36d4024caa3790606e43228a574157c45b73b22Aleksey Makarov wait_for_completion(&hwif->gendev_rel_comp); 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Remove us from the kernel's knowledge 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<<PARTN_BITS); 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(hwif->sg_table); 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unregister_blkdev(hwif->major, hwif->name); 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->dma_base) { 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) ide_release_dma(hwif); 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_base = 0; 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_command = 0; 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor1 = 0; 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_status = 0; 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor3 = 0; 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_prdtable = 0; 599020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov 600020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov hwif->extra_base = 0; 601020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov hwif->extra_ports = 0; 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* copy original settings */ 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp_hwif = *hwif; 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* restore hwif data to pristine status */ 608cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz ide_init_port_data(hwif, index); 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_default(hwif, index); 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_restore(hwif, &tmp_hwif); 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsabort: 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 615ef29888ea8e1fdc499e995260195b66fc91d2728Matthias Kaehlcke mutex_unlock(&ide_cfg_mtx); 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_unregister); 6191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 6221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_setup_ports - set up IDE interface ports 6231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hw: register descriptions 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @base: base register 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @offsets: table of register offsets 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @ctrl: control register 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @ack_irq: IRQ ack 6281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @irq: interrupt lie 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Setup hw_regs_t structure described by parameters. You 6311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * may set up the hw structure yourself OR use this routine to 6321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * do it for you. This is basically a helper 6331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ide_setup_ports ( hw_regs_t *hw, 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long base, int *offsets, 6381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long ctrl, unsigned long intr, 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_ack_intr_t *ack_intr, 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_io_ops_t *iops, 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int irq) 6441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 6461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6472c3e0262e0cb5395fe02cdf27c229ee7414ab0c0Roman Zippel memset(hw, 0, sizeof(hw_regs_t)); 6481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < IDE_NR_PORTS; i++) { 6491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (offsets[i] == -1) { 6501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch(i) { 6511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IDE_CONTROL_OFFSET: 6521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->io_ports[i] = ctrl; 6531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(CONFIG_AMIGA) || defined(CONFIG_MAC) 6551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case IDE_IRQ_OFFSET: 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->io_ports[i] = intr; 6571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* (CONFIG_AMIGA) || (CONFIG_MAC) */ 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->io_ports[i] = 0; 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->io_ports[i] = base + offsets[i]; 6651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->irq = irq; 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw->ack_intr = ack_intr; 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 6701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * hw->iops = iops; 6711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 67457c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewiczvoid ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw) 67557c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz{ 67657c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports)); 67757c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz hwif->irq = hw->irq; 67857c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz hwif->noprobe = 0; 67957c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz hwif->chipset = hw->chipset; 68057c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz hwif->gendev.parent = hw->dev; 68157c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz hwif->ack_intr = hw->ack_intr; 68257c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz} 68357c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_init_port_hw); 68457c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz 6851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 686fd9bb53942a7ca3398a63f2c238afd8fbed3ec0eBartlomiej Zolnierkiewicz * ide_register_hw - register IDE interface 6871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hw: hardware registers 688f01393e48c44e30f7c9a36c8b98a07b0232580feBartlomiej Zolnierkiewicz * @quirkproc: quirkproc function 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hwifp: pointer to returned hwif 6901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Register an IDE interface, specifying exactly the registers etc. 6921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns -1 on error. 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 696f01393e48c44e30f7c9a36c8b98a07b0232580feBartlomiej Zolnierkiewiczint ide_register_hw(hw_regs_t *hw, void (*quirkproc)(ide_drive_t *), 697cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz ide_hwif_t **hwifp) 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index, retry = 1; 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif; 701cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; 702795d74b51a853e1f5f2c81baf6666836a3866f08Bartlomiej Zolnierkiewicz 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 7041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; ++index) { 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[index]; 7068f173b5bf460a85791c131e774dc992f8cd578c1Bartlomiej Zolnierkiewicz if (hwif->io_ports[IDE_DATA_OFFSET] == hw->io_ports[IDE_DATA_OFFSET]) 7071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto found; 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; ++index) { 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[index]; 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->hold) 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 713795d74b51a853e1f5f2c81baf6666836a3866f08Bartlomiej Zolnierkiewicz if (!hwif->present && hwif->mate == NULL) 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto found; 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; index++) 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_unregister(index); 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (retry--); 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfound: 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->present) 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_unregister(index); 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (!hwif->hold) { 724cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz ide_init_port_data(hwif, index); 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_default(hwif, index); 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->present) 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 72957c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz 73057c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz ide_init_port_hw(hwif, hw); 731f01393e48c44e30f7c9a36c8b98a07b0232580feBartlomiej Zolnierkiewicz hwif->quirkproc = quirkproc; 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 733cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz idx[0] = index; 7348447d9d52adbe4c653482bd0d5ccb9b5d26f9c9dBartlomiej Zolnierkiewicz 735cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz ide_device_add(idx); 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwifp) 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *hwifp = hwif; 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 740cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz return hwif->present ? index : -1; 7411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_register_hw); 7441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 7461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Locks for IDE setting functionality 7471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 749f9383c4269d264c3cf563bd2de365891f6592ebdMatthias KaehlckeDEFINE_MUTEX(ide_setting_mtx); 7501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 751f9383c4269d264c3cf563bd2de365891f6592ebdMatthias KaehlckeEXPORT_SYMBOL_GPL(ide_setting_mtx); 7521497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 7541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_spin_wait_hwgroup - wait for group 7551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @drive: drive in the group 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Wait for an IDE device group to go non busy and then return 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * holding the ide_lock which guards the hwgroup->busy status 7591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and right to use it. 7601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ide_spin_wait_hwgroup (ide_drive_t *drive) 7631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwgroup_t *hwgroup = HWGROUP(drive); 7651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long timeout = jiffies + (3 * HZ); 7661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 7681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (hwgroup->busy) { 7701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long lflags; 7711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 7721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_set(lflags); 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (time_after(jiffies, timeout)) { 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_restore(lflags); 7751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "%s: channel busy\n", drive->name); 7761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 7771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_restore(lflags); 7791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 7801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 7821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_spin_wait_hwgroup); 7851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7867662d046df09e80680b77b68de896beab45e675eBartlomiej Zolnierkiewiczint set_io_32bit(ide_drive_t *drive, int arg) 7871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7881497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (drive->no_io_32bit) 7891497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EPERM; 7901497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7911497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1)) 7921497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 7931497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 794644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz if (ide_spin_wait_hwgroup(drive)) 795644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz return -EBUSY; 796644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz 7971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->io_32bit = arg; 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_DTC2278 7991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (HWIF(drive)->chipset == ide_dtc2278) 8001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds HWIF(drive)->drives[!drive->select.b.unit].io_32bit = arg; 8011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_DTC2278 */ 802644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz 803644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 804644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz 8051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 8061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8081497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewiczstatic int set_ksettings(ide_drive_t *drive, int arg) 8091497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz{ 8101497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1) 8111497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 8121497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8131497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (ide_spin_wait_hwgroup(drive)) 8141497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EBUSY; 8151497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz drive->keep_settings = arg; 8161497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 8171497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8181497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return 0; 8191497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz} 8201497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8217662d046df09e80680b77b68de896beab45e675eBartlomiej Zolnierkiewiczint set_using_dma(ide_drive_t *drive, int arg) 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEDMA 8248799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz ide_hwif_t *hwif = drive->hwif; 8258799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz int err = -EPERM; 8268799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 8271497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1) 8281497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 8291497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!drive->id || !(drive->id->capability & 1)) 8318799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz goto out; 8328799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 83315ce926ada545cb078711bd9a18c083c93fa01d7Bartlomiej Zolnierkiewicz if (hwif->dma_host_set == NULL) 8348799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz goto out; 8358799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 8368799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz err = -EBUSY; 8378799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz if (ide_spin_wait_hwgroup(drive)) 8388799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz goto out; 8398799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz /* 8408799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz * set ->busy flag, unlock and let it ride 8418799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz */ 8428799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz hwif->hwgroup->busy = 1; 8438799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 8448799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 8458799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz err = 0; 8468799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 8471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (arg) { 84823b1bd459c9e8a925381960f0b69ac85468c3af1Bartlomiej Zolnierkiewicz if (ide_set_dma(drive)) 8498799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz err = -EIO; 8507469aaf6a30f4187ed6de7c0aed5c2dd2d1c2d31Bartlomiej Zolnierkiewicz } else 8517469aaf6a30f4187ed6de7c0aed5c2dd2d1c2d31Bartlomiej Zolnierkiewicz ide_dma_off(drive); 8528799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 8538799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz /* 8548799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz * lock, clear ->busy flag and unlock before leaving 8558799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz */ 8568799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz spin_lock_irq(&ide_lock); 8578799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz hwif->hwgroup->busy = 0; 8588799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 8598799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewiczout: 8608799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz return err; 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 8621497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1) 8631497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 8641497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 8671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8697662d046df09e80680b77b68de896beab45e675eBartlomiej Zolnierkiewiczint set_pio_mode(ide_drive_t *drive, int arg) 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request rq; 8721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8731497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 255) 8741497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 8751497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 87626bcb879c03254545a19c6700fe5bcef6f21e7b1Bartlomiej Zolnierkiewicz if (drive->hwif->set_pio_mode == NULL) 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOSYS; 87826bcb879c03254545a19c6700fe5bcef6f21e7b1Bartlomiej Zolnierkiewicz 8791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (drive->special.b.set_tune) 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 881145b75e9aedbe36c55e45da8564dcd0814bdd89eBartlomiej Zolnierkiewicz 8821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_drive_cmd(&rq); 883852738f39258deafb3d89c187cb1a4050820d555Bartlomiej Zolnierkiewicz rq.cmd_type = REQ_TYPE_ATA_TASKFILE; 884145b75e9aedbe36c55e45da8564dcd0814bdd89eBartlomiej Zolnierkiewicz 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->tune_req = (u8) arg; 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->special.b.set_tune = 1; 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) ide_do_drive_cmd(drive, &rq, ide_wait); 8881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8911497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewiczstatic int set_unmaskirq(ide_drive_t *drive, int arg) 8921497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz{ 8931497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (drive->no_unmask) 8941497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EPERM; 8951497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8961497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1) 8971497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 8981497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8991497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (ide_spin_wait_hwgroup(drive)) 9001497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EBUSY; 9011497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz drive->unmask = arg; 9021497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 9031497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 9041497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return 0; 9051497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz} 9061497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * system_bus_clock - clock guess 9091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * External version of the bus clock guess used by very old IDE drivers 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for things like VLB timings. Should not be used. 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 9131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint system_bus_clock (void) 9151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return((int) ((!system_bus_speed) ? ide_system_bus_speed() : system_bus_speed )); 9171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(system_bus_clock); 9201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 921b887d2e63c8857149ef59eb6e05adfaa018b8ebfDavid Brownellstatic int generic_ide_suspend(struct device *dev, pm_message_t mesg) 9221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive = dev->driver_data; 924e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_hwif_t *hwif = HWIF(drive); 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request rq; 9261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request_pm_state rqpm; 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_task_t args; 9285e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li int ret; 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 930e3a59b4d9378522479609042836ae930305a67feHannes Reinecke /* Call ACPI _GTM only once */ 931e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!(drive->dn % 2)) 932e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_acpi_get_timing(hwif); 933e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 9341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rq, 0, sizeof(rq)); 9351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rqpm, 0, sizeof(rqpm)); 9361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&args, 0, sizeof(args)); 9374aff5e2333c9a1609662f2091f55c3f6fffdad36Jens Axboe rq.cmd_type = REQ_TYPE_PM_SUSPEND; 9381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rq.special = &args; 939c00895ab2f08df7044e58ee01c38bf0a661ea0ebJens Axboe rq.data = &rqpm; 9401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rqpm.pm_step = ide_pm_state_start_suspend; 941b887d2e63c8857149ef59eb6e05adfaa018b8ebfDavid Brownell if (mesg.event == PM_EVENT_PRETHAW) 942b887d2e63c8857149ef59eb6e05adfaa018b8ebfDavid Brownell mesg.event = PM_EVENT_FREEZE; 943b887d2e63c8857149ef59eb6e05adfaa018b8ebfDavid Brownell rqpm.pm_state = mesg.event; 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9455e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li ret = ide_do_drive_cmd(drive, &rq, ide_wait); 9465e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li /* only call ACPI _PS3 after both drivers are suspended */ 9475e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li if (!ret && (((drive->dn % 2) && hwif->drives[0].present 9485e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li && hwif->drives[1].present) 9495e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li || !hwif->drives[0].present 9505e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li || !hwif->drives[1].present)) 9515e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li ide_acpi_set_state(hwif, 0); 9525e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li return ret; 9531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int generic_ide_resume(struct device *dev) 9561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive = dev->driver_data; 958e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_hwif_t *hwif = HWIF(drive); 9591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request rq; 9601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request_pm_state rqpm; 9611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_task_t args; 9620d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager int err; 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 964e3a59b4d9378522479609042836ae930305a67feHannes Reinecke /* Call ACPI _STM only once */ 9655e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li if (!(drive->dn % 2)) { 9665e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li ide_acpi_set_state(hwif, 1); 967e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_acpi_push_timing(hwif); 9685e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li } 969e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 970e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_acpi_exec_tfs(drive); 971e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rq, 0, sizeof(rq)); 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rqpm, 0, sizeof(rqpm)); 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&args, 0, sizeof(args)); 9754aff5e2333c9a1609662f2091f55c3f6fffdad36Jens Axboe rq.cmd_type = REQ_TYPE_PM_RESUME; 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rq.special = &args; 977c00895ab2f08df7044e58ee01c38bf0a661ea0ebJens Axboe rq.data = &rqpm; 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rqpm.pm_step = ide_pm_state_start_resume; 979ca078bae813dd46c0f9b102fdfb4a3384641ff48Pavel Machek rqpm.pm_state = PM_EVENT_ON; 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9810d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager err = ide_do_drive_cmd(drive, &rq, ide_head_wait); 9820d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager 983ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki if (err == 0 && dev->driver) { 984ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki ide_driver_t *drv = to_ide_driver(dev->driver); 985ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki 986ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki if (drv->resume) 987ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki drv->resume(drive); 988ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki } 9890d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager 9900d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager return err; 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device *bdev, 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int cmd, unsigned long arg) 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9961497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz unsigned long flags; 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_driver_t *drv; 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __user *p = (void __user *)arg; 9991985026d32e69ed6dac3ba0ef8ff10366f060ed3Linus Torvalds int err = 0, (*setfunc)(ide_drive_t *, int); 10001497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz u8 *val; 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10021497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz switch (cmd) { 10031497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_GET_32BIT: val = &drive->io_32bit; goto read_val; 10041497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_GET_KEEPSETTINGS: val = &drive->keep_settings; goto read_val; 10051497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_GET_UNMASKINTR: val = &drive->unmask; goto read_val; 10061497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_GET_DMA: val = &drive->using_dma; goto read_val; 10071497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_32BIT: setfunc = set_io_32bit; goto set_val; 10081497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_KEEPSETTINGS: setfunc = set_ksettings; goto set_val; 10091497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_PIO_MODE: setfunc = set_pio_mode; goto set_val; 10101497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_UNMASKINTR: setfunc = set_unmaskirq; goto set_val; 10111497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_DMA: setfunc = set_using_dma; goto set_val; 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_OBSOLETE_IDENTITY: 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_GET_IDENTITY: 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bdev != bdev->bd_contains) 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (drive->id_read == 0) 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMSG; 10211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_to_user(p, drive->id, (cmd == HDIO_GET_IDENTITY) ? sizeof(*drive->id) : 142)) 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_GET_NICE: 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return put_user(drive->dsc_overlap << IDE_NICE_DSC_OVERLAP | 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->atapi_overlap << IDE_NICE_ATAPI_OVERLAP | 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->nice0 << IDE_NICE_0 | 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->nice1 << IDE_NICE_1 | 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->nice2 << IDE_NICE_2, 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (long __user *) arg); 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_IDE_TASK_IOCTL 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_TASKFILE: 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) 10361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 10371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch(drive->media) { 10381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case ide_disk: 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_taskfile_ioctl(drive, cmd, arg); 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMSG; 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_IDE_TASK_IOCTL */ 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_CMD: 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_cmd_ioctl(drive, cmd, arg); 10491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_TASK: 10511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) 10521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 10531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_task_ioctl(drive, cmd, arg); 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_SCAN_HWIF: 10561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 10571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw_regs_t hw; 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int args[3]; 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) return -EACCES; 10601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_from_user(args, p, 3 * sizeof(int))) 10611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&hw, 0, sizeof(hw)); 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_hwif_ports(&hw, (unsigned long) args[0], 10641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (unsigned long) args[1], NULL); 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw.irq = args[2]; 1066cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz if (ide_register_hw(&hw, NULL, NULL) == -1) 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EIO; 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_UNREGISTER_HWIF: 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) return -EACCES; 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* (arg > MAX_HWIFS) checked in function */ 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_unregister(arg); 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_SET_NICE: 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) return -EACCES; 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (arg != (arg & ((1 << IDE_NICE_DSC_OVERLAP) | (1 << IDE_NICE_1)))) 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->dsc_overlap = (arg >> IDE_NICE_DSC_OVERLAP) & 1; 10801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drv = *(ide_driver_t **)bdev->bd_disk->private_data; 10811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (drive->dsc_overlap && !drv->supports_dsc_overlap) { 10821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->dsc_overlap = 0; 10831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 10841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->nice1 = (arg >> IDE_NICE_1) & 1; 10861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_RESET: 10881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 10891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 10901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) return -EACCES; 10911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 10931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Abort the current command on the 10941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * group if there is one, taking 10951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * care not to allow anything else 10961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to be queued and to die on the 10971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * spot if we miss one somehow 10981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&ide_lock, flags); 11011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1102913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox if (HWGROUP(drive)->resetting) { 1103913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox spin_unlock_irqrestore(&ide_lock, flags); 1104913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox return -EBUSY; 1105913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox } 1106913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_abort(drive, "drive reset"); 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1109125e18745f16685f69a34fd6130d47598fc4bf54Eric Sesterhenn BUG_ON(HWGROUP(drive)->handler); 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Ensure nothing gets queued after we 11121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drop the lock. Reset will clear the busy */ 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds HWGROUP(drive)->busy = 1; 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&ide_lock, flags); 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) ide_do_reset(drive); 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_GET_BUSSTATE: 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (put_user(HWIF(drive)->bus_state, (long __user *)arg)) 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_SET_BUSSTATE: 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (HWIF(drive)->busproc) 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return HWIF(drive)->busproc(drive, (int)arg); 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EOPNOTSUPP; 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11371497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 11381497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewiczread_val: 1139f9383c4269d264c3cf563bd2de365891f6592ebdMatthias Kaehlcke mutex_lock(&ide_setting_mtx); 11401497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz spin_lock_irqsave(&ide_lock, flags); 11411497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz err = *val; 11421497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz spin_unlock_irqrestore(&ide_lock, flags); 1143f9383c4269d264c3cf563bd2de365891f6592ebdMatthias Kaehlcke mutex_unlock(&ide_setting_mtx); 11441497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return err >= 0 ? put_user(err, (long __user *)arg) : err; 11451497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 11461497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewiczset_val: 11471497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (bdev != bdev->bd_contains) 11481497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz err = -EINVAL; 11491497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz else { 11501497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (!capable(CAP_SYS_ADMIN)) 11511497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz err = -EACCES; 11521497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz else { 1153f9383c4269d264c3cf563bd2de365891f6592ebdMatthias Kaehlcke mutex_lock(&ide_setting_mtx); 11541497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz err = setfunc(drive, arg); 1155f9383c4269d264c3cf563bd2de365891f6592ebdMatthias Kaehlcke mutex_unlock(&ide_setting_mtx); 11561497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz } 11571497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz } 11581497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return err; 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(generic_ide_ioctl); 11621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * stridx() returns the offset of c within s, 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or -1 if c is '\0' or not found within s. 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init stridx (const char *s, char c) 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *i = strchr(s, c); 11701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (i && c) ? i - s : -1; 11711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * match_parm() does parsing for ide_setup(): 11751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1. the first char of s must be '='. 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2. if the remainder matches one of the supplied keywords, 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the index (1 based) of the keyword is negated and returned. 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3. if the remainder is a series of no more than max_vals numbers 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * separated by commas, the numbers are saved in vals[] and a 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * count of how many were saved is returned. Base10 is assumed, 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and base16 is allowed when prefixed with "0x". 11831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4. otherwise, zero is returned. 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init match_parm (char *s, const char *keywords[], int vals[], int max_vals) 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static const char *decimal = "0123456789"; 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static const char *hex = "0123456789abcdef"; 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, n; 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (*s++ == '=') { 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Try matching against the supplied keywords, 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and return -(index+1) if we match one 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (keywords != NULL) { 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; *keywords != NULL; ++i) { 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, *keywords++)) 11991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -(i+1); 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for a series of no more than "max_vals" 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * numeric values separated by commas, in base10, 12051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or base16 when prefixed with "0x". 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Return a count of how many were found. 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (n = 0; (i = stridx(decimal, *s)) >= 0;) { 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[n] = i; 12101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((i = stridx(decimal, *++s)) >= 0) 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[n] = (vals[n] * 10) + i; 12121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (*s == 'x' && !vals[n]) { 12131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((i = stridx(hex, *++s)) >= 0) 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[n] = (vals[n] * 0x10) + i; 12151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++n == max_vals) 12171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (*s == ',' || *s == ';') 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ++s; 12201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!*s) 12221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return n; 12231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* zero = nothing matched */ 12251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 12261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1227849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_ali14xx; 1228849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_umc8672; 1229849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_dtc2278; 1230849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_ht6560b; 1231849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_qd65xx; 1232ade2daf9c6e57845fe83a24e0a9fa1c03c6e91b1Bartlomiej Zolnierkiewiczextern int cmd640_vlb; 12331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __initdata is_chipset_set[MAX_HWIFS]; 12351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 12371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_setup() gets called VERY EARLY during initialization, 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to handle kernel "command line" strings beginning with "hdx=" or "ide". 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Remember to update Documentation/ide.txt if you change something here. 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init ide_setup(char *s) 12431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 12441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, vals[3]; 12451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif; 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive; 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int hw, unit; 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char max_drive = 'a' + ((MAX_HWIFS * MAX_DRIVES) - 1); 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char max_hwif = '0' + (MAX_HWIFS - 1); 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(s,"hd",2) == 0 && s[2] == '=') /* hd= is for hd.c */ 12531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* driver and not us */ 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(s,"ide",3) && strncmp(s,"idebus",6) && strncmp(s,"hd",2)) 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "ide_setup: %s", s); 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_ide_data (); 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEDOUBLER 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, "ide=doubler")) { 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern int ide_doubler; 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" : Enabled support for IDE doublers\n"); 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_doubler = 1; 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_IDEDOUBLER */ 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, "ide=nodma")) { 12721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" : Prevented DMA\n"); 12731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds noautodma = 1; 1274c223701cf6c706f42840631c1ca919a18e6e2800Bartlomiej Zolnierkiewicz goto obsolete_option; 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12776d208b39c45edee5def6c201fcd51561c5a39828Bartlomiej Zolnierkiewicz#ifdef CONFIG_IDEPCI_PCIBUS_ORDER 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, "ide=reverse")) { 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_scan_direction = 1; 12801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" : Enabled support for IDE inverse scan order.\n"); 12811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 12821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12836d208b39c45edee5def6c201fcd51561c5a39828Bartlomiej Zolnierkiewicz#endif 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1285e3a59b4d9378522479609042836ae930305a67feHannes Reinecke#ifdef CONFIG_BLK_DEV_IDEACPI 1286e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!strcmp(s, "ide=noacpi")) { 1287e3a59b4d9378522479609042836ae930305a67feHannes Reinecke //printk(" : Disable IDE ACPI support.\n"); 1288e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_noacpi = 1; 1289e3a59b4d9378522479609042836ae930305a67feHannes Reinecke return 1; 1290e3a59b4d9378522479609042836ae930305a67feHannes Reinecke } 1291e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!strcmp(s, "ide=acpigtf")) { 1292e3a59b4d9378522479609042836ae930305a67feHannes Reinecke //printk(" : Enable IDE ACPI _GTF support.\n"); 1293e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_noacpitfs = 0; 1294e3a59b4d9378522479609042836ae930305a67feHannes Reinecke return 1; 1295e3a59b4d9378522479609042836ae930305a67feHannes Reinecke } 1296e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!strcmp(s, "ide=acpionboot")) { 1297e3a59b4d9378522479609042836ae930305a67feHannes Reinecke //printk(" : Call IDE ACPI methods on boot.\n"); 1298e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_noacpionboot = 0; 1299e3a59b4d9378522479609042836ae930305a67feHannes Reinecke return 1; 1300e3a59b4d9378522479609042836ae930305a67feHannes Reinecke } 1301e3a59b4d9378522479609042836ae930305a67feHannes Reinecke#endif /* CONFIG_BLK_DEV_IDEACPI */ 1302e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for drive options: "hdx=" 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[0] == 'h' && s[1] == 'd' && s[2] >= 'a' && s[2] <= max_drive) { 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *hd_words[] = { 1308c223701cf6c706f42840631c1ca919a18e6e2800Bartlomiej Zolnierkiewicz "none", "noprobe", "nowerr", "cdrom", "nodma", 13099e47be0c97f7357b80e91dc0632e9cce2eb025e0Bartlomiej Zolnierkiewicz "autotune", "noautotune", "-8", "-9", "-10", 1310361934849e9c0418950bedf667732f36337d88b9Jens Axboe "noflush", "remap", "remap63", "scsi", NULL }; 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit = s[2] - 'a'; 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw = unit / MAX_DRIVES; 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit = unit % MAX_DRIVES; 13141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[hw]; 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive = &hwif->drives[unit]; 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(s + 4, "ide-", 4) == 0) { 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(drive->driver_req, s + 4, sizeof(drive->driver_req)); 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (match_parm(&s[3], hd_words, vals, 3)) { 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -1: /* "none" */ 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -2: /* "noprobe" */ 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->noprobe = 1; 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -3: /* "nowerr" */ 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->bad_wstat = BAD_R_STAT; 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -4: /* "cdrom" */ 13301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->present = 1; 13311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->media = ide_cdrom; 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* an ATAPI device ignores DRDY */ 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ready_stat = 0; 13341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 13351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 1336c223701cf6c706f42840631c1ca919a18e6e2800Bartlomiej Zolnierkiewicz case -5: /* nodma */ 1337c223701cf6c706f42840631c1ca919a18e6e2800Bartlomiej Zolnierkiewicz drive->nodma = 1; 1338c223701cf6c706f42840631c1ca919a18e6e2800Bartlomiej Zolnierkiewicz goto done; 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -6: /* "autotune" */ 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->autotune = IDE_TUNE_AUTO; 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -7: /* "noautotune" */ 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->autotune = IDE_TUNE_NOAUTO; 13441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 1345361934849e9c0418950bedf667732f36337d88b9Jens Axboe case -11: /* noflush */ 1346361934849e9c0418950bedf667732f36337d88b9Jens Axboe drive->noflush = 1; 1347361934849e9c0418950bedf667732f36337d88b9Jens Axboe goto done; 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -12: /* "remap" */ 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->remap_0_to_1 = 1; 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -13: /* "remap63" */ 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->sect0 = 63; 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -14: /* "scsi" */ 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->scsi = 1; 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 3: /* cyl,head,sect */ 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->media = ide_disk; 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ready_stat = READY_STAT; 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->cyl = drive->bios_cyl = vals[0]; 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->head = drive->bios_head = vals[1]; 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->sect = drive->bios_sect = vals[2]; 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->present = 1; 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->forced_geom = 1; 13651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[0] != 'i' || s[1] != 'd' || s[2] != 'e') 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for bus speed option: "idebus=" 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[3] == 'b' && s[4] == 'u' && s[5] == 's') { 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (match_parm(&s[6], NULL, vals, 1) != 1) 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 13801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (vals[0] >= 20 && vals[0] <= 66) { 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds idebus_parameter = vals[0]; 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- BAD BUS SPEED! Expected value from 20 to 66"); 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for interface options: "idex=" 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[3] >= '0' && s[3] <= max_hwif) { 13901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Be VERY CAREFUL changing this: note hardcoded indexes below 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (-8, -9, -10) are reserved to ease the hardcoding. 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static const char *ide_words[] = { 1395b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz "noprobe", "serialize", "minus3", "minus4", 13961b5169405e50b98b2bd1e4f86c7706ea24a59193Bartlomiej Zolnierkiewicz "reset", "minus6", "ata66", "minus8", "minus9", 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "minus10", "four", "qd65xx", "ht6560b", "cmd640_vlb", 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "dtc2278", "umc8672", "ali14xx", NULL }; 13999239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz 14009239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz hw_regs_t hwregs; 14019239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz 14021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw = s[3] - '0'; 14031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[hw]; 14041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = match_parm(&s[4], ide_words, vals, 3); 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Cryptic check to ensure chipset not already set for hwif. 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: we can't depend on hwif->chipset here. 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 14101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((i >= -18 && i <= -11) || (i > 0 && i <= 3)) { 14111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* chipset already specified */ 14121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (is_chipset_set[hw]) 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i > -18 && i <= -11) { 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* these drivers are for "ide0=" only */ 14161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hw != 0) 14171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_hwif; 14181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* chipset already specified for 2nd port */ 14191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (is_chipset_set[hw+1]) 14201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds is_chipset_set[hw] = 1; 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("\n"); 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (i) { 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_ALI14XX 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -17: /* "ali14xx" */ 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_ali14xx = 1; 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_UMC8672 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -16: /* "umc8672" */ 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_umc8672 = 1; 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 14361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_DTC2278 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -15: /* "dtc2278" */ 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_dtc2278 = 1; 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_CMD640 14431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -14: /* "cmd640_vlb" */ 14441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd640_vlb = 1; 14451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_HT6560B 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -13: /* "ht6560b" */ 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_ht6560b = 1; 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_QD65XX 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -12: /* "qd65xx" */ 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_qd65xx = 1; 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_4DRIVES 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -11: /* "four" drives on one set of ports */ 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *mate = &ide_hwifs[hw^1]; 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mate->drives[0].select.all ^= 0x20; 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mate->drives[1].select.all ^= 0x20; 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = mate->chipset = ide_4drives; 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mate->irq = hwif->irq; 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(mate->io_ports, hwif->io_ports, sizeof(hwif->io_ports)); 1466b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz hwif->mate = mate; 1467b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz mate->mate = hwif; 1468b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz hwif->serialized = mate->serialized = 1; 1469b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz goto obsolete_option; 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_4DRIVES */ 14721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -10: /* minus10 */ 14731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -9: /* minus9 */ 14741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -8: /* minus8 */ 14751b5169405e50b98b2bd1e4f86c7706ea24a59193Bartlomiej Zolnierkiewicz case -6: 1476b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz case -4: 1477b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz case -3: 14781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 14791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -7: /* ata66 */ 14801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEPCI 148149521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz /* 148249521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz * Use ATA_CBL_PATA40_SHORT so drive side 148349521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz * cable detection is also overriden. 148449521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz */ 148549521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz hwif->cbl = ATA_CBL_PATA40_SHORT; 14861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 14871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 14881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_hwif; 14891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -5: /* "reset" */ 14911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->reset = 1; 14921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 14931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -2: /* "serialize" */ 14941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mate = &ide_hwifs[hw^1]; 14951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mate->mate = hwif; 14961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->serialized = hwif->mate->serialized = 1; 14971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 14981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -1: /* "noprobe" */ 15001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 1; 15011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 15021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 1: /* base */ 15041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[1] = vals[0] + 0x206; /* default ctl */ 15051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 2: /* base,ctl */ 15061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[2] = 0; /* default irq = probe for it */ 15071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 3: /* base,ctl,irq */ 15089239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz memset(&hwregs, 0, sizeof(hwregs)); 15099239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz ide_init_hwif_ports(&hwregs, vals[0], vals[1], &hwif->irq); 15109239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz memcpy(hwif->io_ports, hwregs.io_ports, sizeof(hwif->io_ports)); 15111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->irq = vals[2]; 15121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 15131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = ide_forced; 15141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 15151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0: goto bad_option; 15171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 15181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- SUPPORT NOT CONFIGURED IN THIS KERNEL\n"); 15191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 15201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 15221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsbad_option: 15231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- BAD OPTION\n"); 15241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 15251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsobsolete_option: 15261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- OBSOLETE OPTION, WILL BE REMOVED SOON!\n"); 15271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 15281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsbad_hwif: 15291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("-- NOT SUPPORTED ON ide%d", hw); 15301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdone: 15311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("\n"); 15321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 15331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 15341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_lock); 15361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15378604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewiczstatic int ide_bus_match(struct device *dev, struct device_driver *drv) 15388604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz{ 15398604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz return 1; 15408604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz} 15418604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz 1542263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic char *media_string(ide_drive_t *drive) 1543263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1544263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers switch (drive->media) { 1545263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers case ide_disk: 1546263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "disk"; 1547263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers case ide_cdrom: 1548263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "cdrom"; 1549263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers case ide_tape: 1550263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "tape"; 1551263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers case ide_floppy: 1552263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "floppy"; 1553a7a832de9e9624bcf069a5369c3c38ba2f44d460Danny Kukawka case ide_optical: 1554a7a832de9e9624bcf069a5369c3c38ba2f44d460Danny Kukawka return "optical"; 1555263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers default: 1556263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "UNKNOWN"; 1557263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers } 1558263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1559263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1560263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic ssize_t media_show(struct device *dev, struct device_attribute *attr, char *buf) 1561263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1562263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 1563263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return sprintf(buf, "%s\n", media_string(drive)); 1564263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1565263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1566263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic ssize_t drivename_show(struct device *dev, struct device_attribute *attr, char *buf) 1567263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1568263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 1569263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return sprintf(buf, "%s\n", drive->name); 1570263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1571263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1572263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) 1573263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1574263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 1575263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return sprintf(buf, "ide:m-%s\n", media_string(drive)); 1576263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1577263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1578e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewiczstatic ssize_t model_show(struct device *dev, struct device_attribute *attr, 1579e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz char *buf) 1580e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz{ 1581e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz ide_drive_t *drive = to_ide_device(dev); 1582e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz return sprintf(buf, "%s\n", drive->id->model); 1583e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz} 1584e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz 1585e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewiczstatic ssize_t firmware_show(struct device *dev, struct device_attribute *attr, 1586e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz char *buf) 1587e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz{ 1588e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz ide_drive_t *drive = to_ide_device(dev); 1589e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz return sprintf(buf, "%s\n", drive->id->fw_rev); 1590e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz} 1591e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz 1592e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewiczstatic ssize_t serial_show(struct device *dev, struct device_attribute *attr, 1593e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz char *buf) 1594e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz{ 1595e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz ide_drive_t *drive = to_ide_device(dev); 1596e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz return sprintf(buf, "%s\n", drive->id->serial_no); 1597e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz} 1598e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz 1599263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic struct device_attribute ide_dev_attrs[] = { 1600263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers __ATTR_RO(media), 1601263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers __ATTR_RO(drivename), 1602263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers __ATTR_RO(modalias), 1603e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz __ATTR_RO(model), 1604e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz __ATTR_RO(firmware), 1605e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz __ATTR(serial, 0400, serial_show, NULL), 1606263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers __ATTR_NULL 1607263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers}; 1608263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 16097eff2e7a8b65c25920207324e56611150eb1cd9aKay Sieversstatic int ide_uevent(struct device *dev, struct kobj_uevent_env *env) 1610263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1611263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 16127eff2e7a8b65c25920207324e56611150eb1cd9aKay Sievers 16137eff2e7a8b65c25920207324e56611150eb1cd9aKay Sievers add_uevent_var(env, "MEDIA=%s", media_string(drive)); 16147eff2e7a8b65c25920207324e56611150eb1cd9aKay Sievers add_uevent_var(env, "DRIVENAME=%s", drive->name); 16157eff2e7a8b65c25920207324e56611150eb1cd9aKay Sievers add_uevent_var(env, "MODALIAS=ide:m-%s", media_string(drive)); 1616263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return 0; 1617263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1618263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 16194031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell Kingstatic int generic_ide_probe(struct device *dev) 16204031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King{ 16214031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_drive_t *drive = to_ide_device(dev); 16224031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_driver_t *drv = to_ide_driver(dev->driver); 16234031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 16244031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King return drv->probe ? drv->probe(drive) : -ENODEV; 16254031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King} 16264031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 16274031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell Kingstatic int generic_ide_remove(struct device *dev) 16284031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King{ 16294031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_drive_t *drive = to_ide_device(dev); 16304031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_driver_t *drv = to_ide_driver(dev->driver); 16314031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 16324031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King if (drv->remove) 16334031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King drv->remove(drive); 16344031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 16354031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King return 0; 16364031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King} 16374031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 16384031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell Kingstatic void generic_ide_shutdown(struct device *dev) 16394031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King{ 16404031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_drive_t *drive = to_ide_device(dev); 16414031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_driver_t *drv = to_ide_driver(dev->driver); 16424031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 16434031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King if (dev->driver && drv->shutdown) 16444031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King drv->shutdown(drive); 16454031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King} 16464031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct bus_type ide_bus_type = { 16481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "ide", 16498604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz .match = ide_bus_match, 1650263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers .uevent = ide_uevent, 16514031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King .probe = generic_ide_probe, 16524031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King .remove = generic_ide_remove, 16534031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King .shutdown = generic_ide_shutdown, 1654263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers .dev_attrs = ide_dev_attrs, 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .suspend = generic_ide_suspend, 16561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .resume = generic_ide_resume, 16571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 16581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16598604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_bus_type); 16608604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz 16611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is gets invoked once during initialization, to set *everything* up 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init ide_init(void) 16651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1666349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap int ret; 1667349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "Uniform Multi-Platform E-IDE driver " REVISION "\n"); 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds system_bus_speed = ide_system_bus_speed(); 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1671349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap ret = bus_register(&ide_bus_type); 1672349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap if (ret < 0) { 1673349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap printk(KERN_WARNING "IDE: bus_register error: %d\n", ret); 1674349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap return ret; 1675349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap } 16761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_ide_data(); 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16795cbf79cdb37be2aa2a1b4fa94144526b14557060Bartlomiej Zolnierkiewicz proc_ide_create(); 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 16821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *options = NULL; 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(options, charp, 0); 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 16881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __init parse_options (char *line) 16901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *next = line; 16921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (line == NULL || !*line) 16941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 16951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((line = next) != NULL) { 16961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((next = strchr(line,' ')) != NULL) 16971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *next++ = 0; 16981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ide_setup(line)) 16991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk (KERN_INFO "Unknown option '%s'\n", line); 17001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 17011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1703fbd8ad30596409070801832335d3ea8cf1513dedSam Ravnborgint __init init_module (void) 17041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds parse_options(options); 17061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_init(); 17071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1709eb7972271720bfc64dc8bacc5b15f874c0bcc859Al Virovoid __exit cleanup_module (void) 17101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index; 17121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; ++index) 17141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_unregister(index); 17151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds proc_ide_destroy(); 17171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_unregister(&ide_bus_type); 17191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 17201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else /* !MODULE */ 17221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds__setup("", ide_setup); 17241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(ide_init); 17261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* MODULE */ 1728