ide.c revision f74c91413ec6140ee0553180c5f56fdd27c22a2e
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 259bca8cc995428c34d8cdfadfa87c8e3f01c4340Bartlomiej Zolnierkiewicz * Copyright (C) 1994-1998 Linus Torvalds & authors (see below) 359bca8cc995428c34d8cdfadfa87c8e3f01c4340Bartlomiej Zolnierkiewicz * Copyrifht (C) 2003-2005, 2007 Bartlomiej Zolnierkiewicz 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mostly written by Mark Lord <mlord@pobox.com> 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and Gadi Oxman <gadio@netvision.net.il> 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and Andre Hedrick <andre@linux-ide.org> 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * See linux/MAINTAINERS for address of current maintainer. 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is the multiple IDE interface driver, as evolved from hd.c. 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * It supports up to MAX_HWIFS IDE interfaces, on one or more IRQs 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (usually 14 & 15). 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * There can be up to two drives per interface, as per the ATA-2 spec. 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ... 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * From hd.c: 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | It traverses the request-list, using interrupts to jump between functions. 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | As nearly all functions can be called within interrupts, we may not sleep. 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | Special care is recommended. Have Fun! 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | modified by Drew Eckhardt to check nr of hd's from the CMOS. 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | Thanks to Branko Lankester, lankeste@fwi.uva.nl, who found a bug 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | in the early extended-partition checks and added DM partitions. 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | Early work on error handling by Mika Liljeberg (liljeber@cs.Helsinki.FI). 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | IRQ-unmask, drive-id, multiple-mode, support for ">16 heads", 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * | and general streamlining by Mark Lord (mlord@pobox.com). 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * October, 1994 -- Complete line-by-line overhaul for linux 1.1.x, by: 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Mark Lord (mlord@pobox.com) (IDE Perf.Pkg) 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Delman Lee (delman@ieee.org) ("Mr. atdisk2") 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Scott Snyder (snyder@fnald0.fnal.gov) (ATAPI IDE cd-rom) 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This was a rewrite of just about everything from hd.c, though some original 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * code is still sprinkled about. Think of it as a major evolution, with 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * inspiration from lots of linux users, esp. hamish@zot.apana.org.au 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define _IDE_C /* Tell ide.h it's really us */ 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/timer.h> 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mm.h> 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/interrupt.h> 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/major.h> 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/genhd.h> 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/blkpg.h> 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/delay.h> 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ide.h> 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/completion.h> 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/reboot.h> 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/cdrom.h> 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/seq_file.h> 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/device.h> 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/bitops.h> 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/byteorder.h> 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/irq.h> 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* default maximum number of failures */ 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define IDE_DEFAULT_MAX_FAILURES 1 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 81f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewiczstruct class *ide_port_class; 82f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR, 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE2_MAJOR, IDE3_MAJOR, 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE4_MAJOR, IDE5_MAJOR, 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE6_MAJOR, IDE7_MAJOR, 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds IDE8_MAJOR, IDE9_MAJOR }; 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int idebus_parameter; /* holds the "idebus=" parameter */ 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int system_bus_speed; /* holds what we think is VESA/PCI bus speed */ 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 92ef29888ea8e1fdc499e995260195b66fc91d2728Matthias KaehlckeDEFINE_MUTEX(ide_cfg_mtx); 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock); 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint noautodma = 0; 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 97e3a59b4d9378522479609042836ae930305a67feHannes Reinecke#ifdef CONFIG_BLK_DEV_IDEACPI 98e3a59b4d9378522479609042836ae930305a67feHannes Reineckeint ide_noacpi = 0; 99e3a59b4d9378522479609042836ae930305a67feHannes Reineckeint ide_noacpitfs = 1; 100e3a59b4d9378522479609042836ae930305a67feHannes Reineckeint ide_noacpionboot = 1; 101e3a59b4d9378522479609042836ae930305a67feHannes Reinecke#endif 102e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is declared extern in ide.h, for access by other IDE modules: 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldside_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */ 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_hwifs); 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11043514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej Zolnierkiewiczstatic void ide_port_init_devices_data(ide_hwif_t *); 11143514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej Zolnierkiewicz 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Do not even *think* about calling this! 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 115cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewiczvoid ide_init_port_data(ide_hwif_t *hwif, unsigned int index) 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* bulk initialize hwif & drive info with zeros */ 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(hwif, 0, sizeof(ide_hwif_t)); 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* fill in any non-zero initial values */ 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->index = index; 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->major = ide_hwif_to_major[index]; 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[0] = 'i'; 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[1] = 'd'; 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[2] = 'e'; 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name[3] = '0' + index; 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->bus_state = BUSSTATE_ON; 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 131f36d4024caa3790606e43228a574157c45b73b22Aleksey Makarov init_completion(&hwif->gendev_rel_comp); 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default_hwif_iops(hwif); 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default_hwif_transport(hwif); 13543514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej Zolnierkiewicz 13643514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej Zolnierkiewicz ide_port_init_devices_data(hwif); 13743514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej Zolnierkiewicz} 13843514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_init_port_data); 13943514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej Zolnierkiewicz 14043514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej Zolnierkiewiczstatic void ide_port_init_devices_data(ide_hwif_t *hwif) 14143514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej Zolnierkiewicz{ 14243514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej Zolnierkiewicz int unit; 14343514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej Zolnierkiewicz 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (unit = 0; unit < MAX_DRIVES; ++unit) { 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive = &hwif->drives[unit]; 14643514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej Zolnierkiewicz u8 j = (hwif->index * MAX_DRIVES) + unit; 14743514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej Zolnierkiewicz 14843514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej Zolnierkiewicz memset(drive, 0, sizeof(*drive)); 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->media = ide_disk; 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->select.all = (unit<<4)|0xa0; 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->hwif = hwif; 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ctl = 0x08; 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ready_stat = READY_STAT; 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->bad_wstat = BAD_W_STAT; 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->special.b.recalibrate = 1; 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->special.b.set_geometry = 1; 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->name[0] = 'h'; 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->name[1] = 'd'; 16043514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej Zolnierkiewicz drive->name[2] = 'a' + j; 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->max_failures = IDE_DEFAULT_MAX_FAILURES; 16243514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej Zolnierkiewicz 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds INIT_LIST_HEAD(&drive->list); 164f36d4024caa3790606e43228a574157c45b73b22Aleksey Makarov init_completion(&drive->gendev_rel_comp); 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16743514ed1ee6a2325692e173ea4eb41068bf72de0Bartlomiej Zolnierkiewicz 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void init_hwif_default(ide_hwif_t *hwif, unsigned int index) 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw_regs_t hw; 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&hw, 0, sizeof(hw_regs_t)); 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, &hwif->irq); 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(hwif->io_ports, hw.io_ports, sizeof(hw.io_ports)); 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET]; 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_HD 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->io_ports[IDE_DATA_OFFSET] == HD_DATA) 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 1; /* may be overridden by ide_setup() */ 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * init_ide_data() sets reasonable default values into all fields 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of all instances of the hwifs and drives, but only on the first call. 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Subsequent calls have no effect (they don't wipe out anything). 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This routine is normally called at driver initialization time, 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but may also be called MUCH earlier during kernel "command-line" 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * parameter processing. As such, we cannot depend on any other parts 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * of the kernel (such as memory allocation) to be functioning yet. 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is too bad, as otherwise we could dynamically allocate the 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_drive_t structs as needed, rather than always consuming memory 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for the max possible number (MAX_HWIFS * MAX_DRIVES) of them. 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: We should stuff the setup data into __init and copy the 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * relevant hwifs/allocate them properly during boot. 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define MAGIC_COOKIE 0x12345678 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __init init_ide_data (void) 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif; 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int index; 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static unsigned long magic_cookie = MAGIC_COOKIE; 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (magic_cookie != MAGIC_COOKIE) 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; /* already initialized */ 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds magic_cookie = 0; 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Initialise all interface structures */ 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; ++index) { 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[index]; 217cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz ide_init_port_data(hwif, index); 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_hwif_default(hwif, index); 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if !defined(CONFIG_PPC32) || !defined(CONFIG_PCI) 2209239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz hwif->irq = 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_default_irq(hwif->io_ports[IDE_DATA_OFFSET]); 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_system_bus_speed - guess bus speed 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_system_bus_speed() returns what we think is the system VESA/PCI 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bus speed (in MHz). This is used for calculating interface PIO timings. 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The default is 40 for known PCI systems, 50 otherwise. 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The "idebus=xx" parameter can be used to override this value. 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The actual value to be used is computed/displayed the first time 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * through. Drivers should only use this as a last resort. 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns a guessed speed in MHz. 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int ide_system_bus_speed(void) 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static struct pci_device_id pci_default[] = { 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { PCI_DEVICE(PCI_ANY_ID, PCI_ANY_ID) }, 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { } 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }; 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define pci_default 0 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PCI */ 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 250537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz /* user supplied value */ 251537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz if (idebus_parameter) 252537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz return idebus_parameter; 253537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz 254537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz /* safe default value for PCI or VESA and PCI*/ 255537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz return pci_dev_present(pci_default) ? 33 : 50; 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 258baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewiczide_hwif_t * ide_find_port(unsigned long base) 259baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz{ 260baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz ide_hwif_t *hwif; 261baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz int i; 262baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz 263baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz for (i = 0; i < MAX_HWIFS; i++) { 264baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz hwif = &ide_hwifs[i]; 265baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz if (hwif->io_ports[IDE_DATA_OFFSET] == base) 266baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz goto found; 267baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz } 268baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz 269baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz for (i = 0; i < MAX_HWIFS; i++) { 270baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz hwif = &ide_hwifs[i]; 2712625cd52b6eafb63b72f2e53f933f41ba9e34dffBartlomiej Zolnierkiewicz if (hwif->chipset == ide_unknown) 272baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz goto found; 273baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz } 274baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz 275baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz hwif = NULL; 276baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewiczfound: 277baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz return hwif; 278baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz} 279baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz 280baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_find_port); 281baa8f3e94bc7a7ba3650d80b67d54c3e08365deeBartlomiej Zolnierkiewicz 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct resource* hwif_request_region(ide_hwif_t *hwif, 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long addr, int num) 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct resource *res = request_region(addr, num, hwif->name); 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!res) 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->name, addr, addr+num-1); 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return res; 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_request_regions - request resources for IDE 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hwif: interface to use 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Requests all the needed resources for an interface. 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Right now core IDE code does this work which is deeply wrong. 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MMIO leaves it to the controller driver, 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PIO will migrate this way over time. 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ide_hwif_request_regions(ide_hwif_t *hwif) 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long addr; 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int i; 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3082ad1e558a2305c2b3d5099ee2f4a5929307c20caBartlomiej Zolnierkiewicz if (hwif->mmio) 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[IDE_CONTROL_OFFSET]; 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (addr && !hwif_request_region(hwif, addr, 1)) 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto control_region_busy; 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->straight8 = 0; 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[IDE_DATA_OFFSET]; 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((addr | 7) == hwif->io_ports[IDE_STATUS_OFFSET]) { 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hwif_request_region(hwif, addr, 8)) 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto data_region_busy; 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->straight8 = 1; 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) { 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[i]; 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hwif_request_region(hwif, addr, 1)) { 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (--i) 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(addr, 1); 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto data_region_busy; 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdata_region_busy: 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds addr = hwif->io_ports[IDE_CONTROL_OFFSET]; 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (addr) 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(addr, 1); 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldscontrol_region_busy: 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* If any errors are return, we drop the hwif interface. */ 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_release_regions - free IDE resources 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note that we only release the standard ports, 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and do not even try to handle any extra ports 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * allocated for weird IDE interface chipsets. 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note also that we don't yet handle mmio resources here. More 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * importantly our caller should be doing this so we need to 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * restructure this as a helper function for drivers. 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid ide_hwif_release_regions(ide_hwif_t *hwif) 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 i = 0; 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3562ad1e558a2305c2b3d5099ee2f4a5929307c20caBartlomiej Zolnierkiewicz if (hwif->mmio) 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->io_ports[IDE_CONTROL_OFFSET]) 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(hwif->io_ports[IDE_CONTROL_OFFSET], 1); 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->straight8) { 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(hwif->io_ports[IDE_DATA_OFFSET], 8); 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->io_ports[i]) 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds release_region(hwif->io_ports[i], 1); 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_restore - restore hwif to template 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hwif: hwif to update 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @tmp_hwif: template 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 374020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov * Restore hwif to a previous state by copying most settings 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * from the template. 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif) 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hwgroup = tmp_hwif->hwgroup; 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->gendev.parent = tmp_hwif->gendev.parent; 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->proc = tmp_hwif->proc; 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->major = tmp_hwif->major; 3871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->straight8 = tmp_hwif->straight8; 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->bus_state = tmp_hwif->bus_state; 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3906a824c92db4d606c324272c4eed366fb71672440Bartlomiej Zolnierkiewicz hwif->host_flags = tmp_hwif->host_flags; 3916a824c92db4d606c324272c4eed366fb71672440Bartlomiej Zolnierkiewicz 3924099d14322149c7a467e4997b87be4ba8eb78697Bartlomiej Zolnierkiewicz hwif->pio_mask = tmp_hwif->pio_mask; 3934099d14322149c7a467e4997b87be4ba8eb78697Bartlomiej Zolnierkiewicz 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ultra_mask = tmp_hwif->ultra_mask; 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mwdma_mask = tmp_hwif->mwdma_mask; 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->swdma_mask = tmp_hwif->swdma_mask; 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 39849521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz hwif->cbl = tmp_hwif->cbl; 39949521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = tmp_hwif->chipset; 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hold = tmp_hwif->hold; 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 40336501650ec45b1db308c3b51886044863be2d762Bartlomiej Zolnierkiewicz hwif->dev = tmp_hwif->dev; 40436501650ec45b1db308c3b51886044863be2d762Bartlomiej Zolnierkiewicz 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEPCI 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->cds = tmp_hwif->cds; 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 40926bcb879c03254545a19c6700fe5bcef6f21e7b1Bartlomiej Zolnierkiewicz hwif->set_pio_mode = tmp_hwif->set_pio_mode; 41088b2b32babd46cd54d2de4d17eb869aea3383e11Bartlomiej Zolnierkiewicz hwif->set_dma_mode = tmp_hwif->set_dma_mode; 411b4e44369a380c1836d0983c2a5011099b7b26eb1Sergei Shtylyov hwif->mdma_filter = tmp_hwif->mdma_filter; 4122d5eaa6dd744a641e75503232a01f52d0768884cBartlomiej Zolnierkiewicz hwif->udma_filter = tmp_hwif->udma_filter; 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->selectproc = tmp_hwif->selectproc; 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->reset_poll = tmp_hwif->reset_poll; 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->pre_reset = tmp_hwif->pre_reset; 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->resetproc = tmp_hwif->resetproc; 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->maskproc = tmp_hwif->maskproc; 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->quirkproc = tmp_hwif->quirkproc; 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ata_input_data = tmp_hwif->ata_input_data; 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ata_output_data = tmp_hwif->ata_output_data; 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->atapi_input_bytes = tmp_hwif->atapi_input_bytes; 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->atapi_output_bytes = tmp_hwif->atapi_output_bytes; 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 42515ce926ada545cb078711bd9a18c083c93fa01d7Bartlomiej Zolnierkiewicz hwif->dma_host_set = tmp_hwif->dma_host_set; 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_setup = tmp_hwif->dma_setup; 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_exec_cmd = tmp_hwif->dma_exec_cmd; 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_start = tmp_hwif->dma_start; 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_end = tmp_hwif->ide_dma_end; 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->ide_dma_test_irq = tmp_hwif->ide_dma_test_irq; 431f0dd8712eb8cc5687b4582fbc41cfbcd55bba0d2Albert Lee hwif->ide_dma_clear_irq = tmp_hwif->ide_dma_clear_irq; 432841d2a9bf16471716ba3a5172d24aa40a2ea9398Sergei Shtylyov hwif->dma_lost_irq = tmp_hwif->dma_lost_irq; 433c283f5dbe31920ca70b80a594a97bfaa2a28be13Sergei Shtylyov hwif->dma_timeout = tmp_hwif->dma_timeout; 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTB = tmp_hwif->OUTB; 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTBSYNC = tmp_hwif->OUTBSYNC; 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTW = tmp_hwif->OUTW; 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTSW = tmp_hwif->OUTSW; 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->OUTSL = tmp_hwif->OUTSL; 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INB = tmp_hwif->INB; 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INW = tmp_hwif->INW; 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INSW = tmp_hwif->INSW; 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->INSL = tmp_hwif->INSL; 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->sg_max_nents = tmp_hwif->sg_max_nents; 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mmio = tmp_hwif->mmio; 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->rqsize = tmp_hwif->rqsize; 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef CONFIG_BLK_DEV_IDECS 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->irq = tmp_hwif->irq; 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_base = tmp_hwif->dma_base; 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_command = tmp_hwif->dma_command; 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor1 = tmp_hwif->dma_vendor1; 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_status = tmp_hwif->dma_status; 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor3 = tmp_hwif->dma_vendor3; 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_prdtable = tmp_hwif->dma_prdtable; 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->config_data = tmp_hwif->config_data; 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->select_data = tmp_hwif->select_data; 464020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov hwif->extra_base = tmp_hwif->extra_base; 465020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov hwif->extra_ports = tmp_hwif->extra_ports; 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->hwif_data = tmp_hwif->hwif_data; 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 470fbd130887a45341259cde02e134581fb3dac6e14Bartlomiej Zolnierkiewiczvoid ide_remove_port_from_hwgroup(ide_hwif_t *hwif) 47196e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz{ 47296e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz ide_hwgroup_t *hwgroup = hwif->hwgroup; 47396e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz 47496e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz spin_lock_irq(&ide_lock); 47596e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz /* 47696e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz * Remove us from the hwgroup, and free 47796e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz * the hwgroup if we were the only member 47896e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz */ 47996e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz if (hwif->next == hwif) { 48096e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz BUG_ON(hwgroup->hwif != hwif); 48196e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz kfree(hwgroup); 48296e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz } else { 48396e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz /* There is another interface in hwgroup. 48496e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz * Unlink us, and set hwgroup->drive and ->hwif to 48596e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz * something sane. 48696e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz */ 48796e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz ide_hwif_t *g = hwgroup->hwif; 48896e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz 48996e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz while (g->next != hwif) 49096e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz g = g->next; 49196e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz g->next = hwif->next; 49296e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz if (hwgroup->hwif == hwif) { 49396e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz /* Chose a random hwif for hwgroup->hwif. 49496e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz * It's guaranteed that there are no drives 49596e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz * left in the hwgroup. 49696e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz */ 49796e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz BUG_ON(hwgroup->drive != NULL); 49896e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz hwgroup->hwif = g; 49996e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz } 50096e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz BUG_ON(hwgroup->hwif == hwif); 50196e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz } 50296e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 50396e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz} 50496e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz 50571bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz/* Called with ide_lock held. */ 5062dde7861afa23cd59db83515cb0b810b92b220aaBartlomiej Zolnierkiewiczstatic void __ide_port_unregister_devices(ide_hwif_t *hwif) 50771bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz{ 50871bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz int i; 50971bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz 51071bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz for (i = 0; i < MAX_DRIVES; i++) { 51171bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz ide_drive_t *drive = &hwif->drives[i]; 51271bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz 51371bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz if (drive->present) { 51471bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 51571bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz device_unregister(&drive->gendev); 51671bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz wait_for_completion(&drive->gendev_rel_comp); 51771bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz spin_lock_irq(&ide_lock); 51871bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz } 51971bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz } 52071bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz} 52171bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz 5222dde7861afa23cd59db83515cb0b810b92b220aaBartlomiej Zolnierkiewiczvoid ide_port_unregister_devices(ide_hwif_t *hwif) 5232dde7861afa23cd59db83515cb0b810b92b220aaBartlomiej Zolnierkiewicz{ 5242dde7861afa23cd59db83515cb0b810b92b220aaBartlomiej Zolnierkiewicz mutex_lock(&ide_cfg_mtx); 5252dde7861afa23cd59db83515cb0b810b92b220aaBartlomiej Zolnierkiewicz spin_lock_irq(&ide_lock); 5262dde7861afa23cd59db83515cb0b810b92b220aaBartlomiej Zolnierkiewicz __ide_port_unregister_devices(hwif); 5272dde7861afa23cd59db83515cb0b810b92b220aaBartlomiej Zolnierkiewicz hwif->present = 0; 5282dde7861afa23cd59db83515cb0b810b92b220aaBartlomiej Zolnierkiewicz ide_port_init_devices_data(hwif); 5292dde7861afa23cd59db83515cb0b810b92b220aaBartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 5302dde7861afa23cd59db83515cb0b810b92b220aaBartlomiej Zolnierkiewicz mutex_unlock(&ide_cfg_mtx); 5312dde7861afa23cd59db83515cb0b810b92b220aaBartlomiej Zolnierkiewicz} 5322dde7861afa23cd59db83515cb0b810b92b220aaBartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_port_unregister_devices); 5332dde7861afa23cd59db83515cb0b810b92b220aaBartlomiej Zolnierkiewicz 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 535020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov * ide_unregister - free an IDE interface 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @index: index of interface (will change soon to a pointer) 537f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz * @init_default: init default hwif flag 538f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz * @restore: restore hwif flag 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Perform the final unregister of an IDE interface. At the moment 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we don't refcount interfaces so this will also get split up. 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Locking: 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The caller must not hold the IDE locks 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The drive present/vanishing is not yet properly locked 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Take care with the callbacks. These have been split to avoid 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * deadlocking the IDE layer. The shutdown callback is called 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * before we take the lock and free resources. It is up to the 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * caller to be sure there is no pending I/O here, and that 550020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov * the interface will not be reopened (present/vanishing locking 551020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov * isn't yet done BTW). After we commit to the final kill we 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * call the cleanup callback with the ide locks held. 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Unregister restores the hwif structures to the default state. 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is raving bonkers. 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 558f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewiczvoid ide_unregister(unsigned int index, int init_default, int restore) 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif, *g; 561ef29888ea8e1fdc499e995260195b66fc91d2728Matthias Kaehlcke static ide_hwif_t tmp_hwif; /* protected by ide_cfg_mtx */ 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwgroup_t *hwgroup; 56371bf9f6fe822397e2cce781a2408c658a776fd68Bartlomiej Zolnierkiewicz int irq_count = 0; 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(index >= MAX_HWIFS); 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(in_interrupt()); 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds BUG_ON(irqs_disabled()); 569ef29888ea8e1fdc499e995260195b66fc91d2728Matthias Kaehlcke mutex_lock(&ide_cfg_mtx); 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[index]; 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!hwif->present) 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto abort; 5742dde7861afa23cd59db83515cb0b810b92b220aaBartlomiej Zolnierkiewicz __ide_port_unregister_devices(hwif); 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->present = 0; 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5795cbf79cdb37be2aa2a1b4fa94144526b14557060Bartlomiej Zolnierkiewicz ide_proc_unregister_port(hwif); 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwgroup = hwif->hwgroup; 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * free the irq if we were the only hwif using it 5841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g = hwgroup->hwif; 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (g->irq == hwif->irq) 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ++irq_count; 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds g = g->next; 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (g != hwgroup->hwif); 5911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (irq_count == 1) 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds free_irq(hwif->irq, hwgroup); 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 59496e5ad309c423bc0793e746337d5632ee5a49769Bartlomiej Zolnierkiewicz ide_remove_port_from_hwgroup(hwif); 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 596f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz device_unregister(hwif->portdev); 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds device_unregister(&hwif->gendev); 598f36d4024caa3790606e43228a574157c45b73b22Aleksey Makarov wait_for_completion(&hwif->gendev_rel_comp); 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Remove us from the kernel's knowledge 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<<PARTN_BITS); 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(hwif->sg_table); 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unregister_blkdev(hwif->major, hwif->name); 6061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 6071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->dma_base) { 6091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) ide_release_dma(hwif); 6101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_base = 0; 6121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_command = 0; 6131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor1 = 0; 6141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_status = 0; 6151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_vendor3 = 0; 6161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->dma_prdtable = 0; 617020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov 618020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov hwif->extra_base = 0; 619020e322de3ff75d32daa58e431aad07071da27c6Sergei Shtylylov hwif->extra_ports = 0; 6201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 6211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6227cba97f12963721eca648d6901b294750a1fa3bdBartlomiej Zolnierkiewicz ide_hwif_release_regions(hwif); 6237cba97f12963721eca648d6901b294750a1fa3bdBartlomiej Zolnierkiewicz 6241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* copy original settings */ 6251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tmp_hwif = *hwif; 6261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* restore hwif data to pristine status */ 628cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz ide_init_port_data(hwif, index); 6291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 630f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz if (init_default) 631f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz init_hwif_default(hwif, index); 632f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz 633f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz if (restore) 634f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz ide_hwif_restore(hwif, &tmp_hwif); 6351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsabort: 6371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 638ef29888ea8e1fdc499e995260195b66fc91d2728Matthias Kaehlcke mutex_unlock(&ide_cfg_mtx); 6391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_unregister); 6421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 64357c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewiczvoid ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw) 64457c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz{ 64557c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports)); 64657c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz hwif->irq = hw->irq; 64757c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz hwif->noprobe = 0; 64857c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz hwif->chipset = hw->chipset; 64957c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz hwif->gendev.parent = hw->dev; 65057c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz hwif->ack_intr = hw->ack_intr; 65157c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz} 65257c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_init_port_hw); 65357c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz 6541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 655fd9bb53942a7ca3398a63f2c238afd8fbed3ec0eBartlomiej Zolnierkiewicz * ide_register_hw - register IDE interface 6561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hw: hardware registers 657f01393e48c44e30f7c9a36c8b98a07b0232580feBartlomiej Zolnierkiewicz * @quirkproc: quirkproc function 6581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @hwifp: pointer to returned hwif 6591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Register an IDE interface, specifying exactly the registers etc. 6611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 6621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns -1 on error. 6631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 6641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6652dde7861afa23cd59db83515cb0b810b92b220aaBartlomiej Zolnierkiewiczstatic int ide_register_hw(hw_regs_t *hw, void (*quirkproc)(ide_drive_t *), 6662dde7861afa23cd59db83515cb0b810b92b220aaBartlomiej Zolnierkiewicz ide_hwif_t **hwifp) 6671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 6681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index, retry = 1; 6691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif; 670cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; 671795d74b51a853e1f5f2c81baf6666836a3866f08Bartlomiej Zolnierkiewicz 6721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 6734f0eee4d877e3b617b6a22d209d52b3dfca2b2a7Bartlomiej Zolnierkiewicz hwif = ide_find_port(hw->io_ports[IDE_DATA_OFFSET]); 6749e016a719209d95338e314b46c3012cc7feaaeecBartlomiej Zolnierkiewicz if (hwif) 6759e016a719209d95338e314b46c3012cc7feaaeecBartlomiej Zolnierkiewicz goto found; 6761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; index++) 677f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz ide_unregister(index, 1, 1); 6781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (retry--); 6791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -1; 6801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsfound: 6810c6025d44448bd688dfd351a09bc620aafa4d1ffPeter Teoh index = hwif->index; 6821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->present) 683f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz ide_unregister(index, 0, 1); 684ead741df385607ab74876afdb05fd8ac27da9906Bartlomiej Zolnierkiewicz else if (!hwif->hold) 685cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz ide_init_port_data(hwif, index); 68657c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz 68757c802e84f9c759c3d1794a9dbe81bc10444df62Bartlomiej Zolnierkiewicz ide_init_port_hw(hwif, hw); 688f01393e48c44e30f7c9a36c8b98a07b0232580feBartlomiej Zolnierkiewicz hwif->quirkproc = quirkproc; 6891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 690cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz idx[0] = index; 6918447d9d52adbe4c653482bd0d5ccb9b5d26f9c9dBartlomiej Zolnierkiewicz 692c413b9b94d9a8e7548cc4b2e04b7df0439ce76fdBartlomiej Zolnierkiewicz ide_device_add(idx, NULL); 6931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwifp) 6951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *hwifp = hwif; 6961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 697cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz return hwif->present ? index : -1; 6981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 7011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Locks for IDE setting functionality 7021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 704f9383c4269d264c3cf563bd2de365891f6592ebdMatthias KaehlckeDEFINE_MUTEX(ide_setting_mtx); 7051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 706f9383c4269d264c3cf563bd2de365891f6592ebdMatthias KaehlckeEXPORT_SYMBOL_GPL(ide_setting_mtx); 7071497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 7091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_spin_wait_hwgroup - wait for group 7101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @drive: drive in the group 7111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 7121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Wait for an IDE device group to go non busy and then return 7131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * holding the ide_lock which guards the hwgroup->busy status 7141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and right to use it. 7151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 7161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ide_spin_wait_hwgroup (ide_drive_t *drive) 7181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwgroup_t *hwgroup = HWGROUP(drive); 7201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long timeout = jiffies + (3 * HZ); 7211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 7231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while (hwgroup->busy) { 7251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long lflags; 7261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irq(&ide_lock); 7271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_set(lflags); 7281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (time_after(jiffies, timeout)) { 7291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_restore(lflags); 7301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "%s: channel busy\n", drive->name); 7311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 7321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_restore(lflags); 7341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irq(&ide_lock); 7351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 7361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 7371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_spin_wait_hwgroup); 7401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7417662d046df09e80680b77b68de896beab45e675eBartlomiej Zolnierkiewiczint set_io_32bit(ide_drive_t *drive, int arg) 7421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7431497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (drive->no_io_32bit) 7441497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EPERM; 7451497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7461497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1)) 7471497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 7481497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 749644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz if (ide_spin_wait_hwgroup(drive)) 750644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz return -EBUSY; 751644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz 7521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->io_32bit = arg; 753644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz 754644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 755644a9d764b4747af057b3db73ccba28a168b1f4fBartlomiej Zolnierkiewicz 7561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 7571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 7581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7591497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewiczstatic int set_ksettings(ide_drive_t *drive, int arg) 7601497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz{ 7611497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1) 7621497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 7631497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7641497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (ide_spin_wait_hwgroup(drive)) 7651497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EBUSY; 7661497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz drive->keep_settings = arg; 7671497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 7681497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7691497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return 0; 7701497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz} 7711497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7727662d046df09e80680b77b68de896beab45e675eBartlomiej Zolnierkiewiczint set_using_dma(ide_drive_t *drive, int arg) 7731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 7741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEDMA 7758799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz ide_hwif_t *hwif = drive->hwif; 7768799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz int err = -EPERM; 7778799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 7781497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1) 7791497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 7801497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 7811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!drive->id || !(drive->id->capability & 1)) 7828799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz goto out; 7838799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 78415ce926ada545cb078711bd9a18c083c93fa01d7Bartlomiej Zolnierkiewicz if (hwif->dma_host_set == NULL) 7858799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz goto out; 7868799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 7878799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz err = -EBUSY; 7888799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz if (ide_spin_wait_hwgroup(drive)) 7898799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz goto out; 7908799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz /* 7918799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz * set ->busy flag, unlock and let it ride 7928799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz */ 7938799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz hwif->hwgroup->busy = 1; 7948799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 7958799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 7968799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz err = 0; 7978799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 7981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (arg) { 79923b1bd459c9e8a925381960f0b69ac85468c3af1Bartlomiej Zolnierkiewicz if (ide_set_dma(drive)) 8008799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz err = -EIO; 8017469aaf6a30f4187ed6de7c0aed5c2dd2d1c2d31Bartlomiej Zolnierkiewicz } else 8027469aaf6a30f4187ed6de7c0aed5c2dd2d1c2d31Bartlomiej Zolnierkiewicz ide_dma_off(drive); 8038799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz 8048799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz /* 8058799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz * lock, clear ->busy flag and unlock before leaving 8068799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz */ 8078799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz spin_lock_irq(&ide_lock); 8088799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz hwif->hwgroup->busy = 0; 8098799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 8108799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewiczout: 8118799620400b0b1a4729d8be828b5bfb3d2a8db1aBartlomiej Zolnierkiewicz return err; 8121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 8131497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1) 8141497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 8151497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 8171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 8181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8207662d046df09e80680b77b68de896beab45e675eBartlomiej Zolnierkiewiczint set_pio_mode(ide_drive_t *drive, int arg) 8211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request rq; 8231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8241497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 255) 8251497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 8261497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 82726bcb879c03254545a19c6700fe5bcef6f21e7b1Bartlomiej Zolnierkiewicz if (drive->hwif->set_pio_mode == NULL) 8281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOSYS; 82926bcb879c03254545a19c6700fe5bcef6f21e7b1Bartlomiej Zolnierkiewicz 8301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (drive->special.b.set_tune) 8311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EBUSY; 832145b75e9aedbe36c55e45da8564dcd0814bdd89eBartlomiej Zolnierkiewicz 8331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_drive_cmd(&rq); 834852738f39258deafb3d89c187cb1a4050820d555Bartlomiej Zolnierkiewicz rq.cmd_type = REQ_TYPE_ATA_TASKFILE; 835145b75e9aedbe36c55e45da8564dcd0814bdd89eBartlomiej Zolnierkiewicz 8361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->tune_req = (u8) arg; 8371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->special.b.set_tune = 1; 8381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) ide_do_drive_cmd(drive, &rq, ide_wait); 8391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 8401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8421497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewiczstatic int set_unmaskirq(ide_drive_t *drive, int arg) 8431497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz{ 8441497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (drive->no_unmask) 8451497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EPERM; 8461497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8471497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (arg < 0 || arg > 1) 8481497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EINVAL; 8491497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8501497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (ide_spin_wait_hwgroup(drive)) 8511497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return -EBUSY; 8521497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz drive->unmask = arg; 8531497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz spin_unlock_irq(&ide_lock); 8541497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8551497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return 0; 8561497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz} 8571497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 8581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 8591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * system_bus_clock - clock guess 8601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 8611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * External version of the bus clock guess used by very old IDE drivers 8621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for things like VLB timings. Should not be used. 8631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 8641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint system_bus_clock (void) 8661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 867537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz return system_bus_speed; 8681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 8691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(system_bus_clock); 8711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 872b887d2e63c8857149ef59eb6e05adfaa018b8ebfDavid Brownellstatic int generic_ide_suspend(struct device *dev, pm_message_t mesg) 8731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive = dev->driver_data; 875e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_hwif_t *hwif = HWIF(drive); 8761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request rq; 8771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request_pm_state rqpm; 8781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_task_t args; 8795e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li int ret; 8801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 881e3a59b4d9378522479609042836ae930305a67feHannes Reinecke /* Call ACPI _GTM only once */ 882e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!(drive->dn % 2)) 883e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_acpi_get_timing(hwif); 884e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 8851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rq, 0, sizeof(rq)); 8861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rqpm, 0, sizeof(rqpm)); 8871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&args, 0, sizeof(args)); 8884aff5e2333c9a1609662f2091f55c3f6fffdad36Jens Axboe rq.cmd_type = REQ_TYPE_PM_SUSPEND; 8891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rq.special = &args; 890c00895ab2f08df7044e58ee01c38bf0a661ea0ebJens Axboe rq.data = &rqpm; 8911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rqpm.pm_step = ide_pm_state_start_suspend; 892b887d2e63c8857149ef59eb6e05adfaa018b8ebfDavid Brownell if (mesg.event == PM_EVENT_PRETHAW) 893b887d2e63c8857149ef59eb6e05adfaa018b8ebfDavid Brownell mesg.event = PM_EVENT_FREEZE; 894b887d2e63c8857149ef59eb6e05adfaa018b8ebfDavid Brownell rqpm.pm_state = mesg.event; 8951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8965e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li ret = ide_do_drive_cmd(drive, &rq, ide_wait); 8975e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li /* only call ACPI _PS3 after both drivers are suspended */ 8985e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li if (!ret && (((drive->dn % 2) && hwif->drives[0].present 8995e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li && hwif->drives[1].present) 9005e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li || !hwif->drives[0].present 9015e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li || !hwif->drives[1].present)) 9025e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li ide_acpi_set_state(hwif, 0); 9035e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li return ret; 9041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int generic_ide_resume(struct device *dev) 9071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive = dev->driver_data; 909e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_hwif_t *hwif = HWIF(drive); 9101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request rq; 9111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct request_pm_state rqpm; 9121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_task_t args; 9130d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager int err; 9141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 915e3a59b4d9378522479609042836ae930305a67feHannes Reinecke /* Call ACPI _STM only once */ 9165e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li if (!(drive->dn % 2)) { 9175e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li ide_acpi_set_state(hwif, 1); 918e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_acpi_push_timing(hwif); 9195e32132befa5d2cefadf3141fee0bbb40cd11f0eShaohua Li } 920e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 921e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_acpi_exec_tfs(drive); 922e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 9231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rq, 0, sizeof(rq)); 9241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&rqpm, 0, sizeof(rqpm)); 9251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&args, 0, sizeof(args)); 9264aff5e2333c9a1609662f2091f55c3f6fffdad36Jens Axboe rq.cmd_type = REQ_TYPE_PM_RESUME; 9271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rq.special = &args; 928c00895ab2f08df7044e58ee01c38bf0a661ea0ebJens Axboe rq.data = &rqpm; 9291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rqpm.pm_step = ide_pm_state_start_resume; 930ca078bae813dd46c0f9b102fdfb4a3384641ff48Pavel Machek rqpm.pm_state = PM_EVENT_ON; 9311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9320d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager err = ide_do_drive_cmd(drive, &rq, ide_head_wait); 9330d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager 934ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki if (err == 0 && dev->driver) { 935ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki ide_driver_t *drv = to_ide_driver(dev->driver); 936ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki 937ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki if (drv->resume) 938ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki drv->resume(drive); 939ce9b2b0abbf019d5259eb089a1cc256852930f67Rafael J. Wysocki } 9400d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager 9410d2157f78d17fcee17791f54959e67cc0af0da74Lee Trager return err; 9421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 9431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device *bdev, 9451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int cmd, unsigned long arg) 9461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 9471497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz unsigned long flags; 9481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_driver_t *drv; 9491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void __user *p = (void __user *)arg; 9501985026d32e69ed6dac3ba0ef8ff10366f060ed3Linus Torvalds int err = 0, (*setfunc)(ide_drive_t *, int); 9511497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz u8 *val; 9521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9531497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz switch (cmd) { 9541497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_GET_32BIT: val = &drive->io_32bit; goto read_val; 9551497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_GET_KEEPSETTINGS: val = &drive->keep_settings; goto read_val; 9561497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_GET_UNMASKINTR: val = &drive->unmask; goto read_val; 9571497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_GET_DMA: val = &drive->using_dma; goto read_val; 9581497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_32BIT: setfunc = set_io_32bit; goto set_val; 9591497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_KEEPSETTINGS: setfunc = set_ksettings; goto set_val; 9601497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_PIO_MODE: setfunc = set_pio_mode; goto set_val; 9611497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_UNMASKINTR: setfunc = set_unmaskirq; goto set_val; 9621497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz case HDIO_SET_DMA: setfunc = set_using_dma; goto set_val; 9631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (cmd) { 9661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_OBSOLETE_IDENTITY: 9671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_GET_IDENTITY: 9681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bdev != bdev->bd_contains) 9691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 9701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (drive->id_read == 0) 9711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMSG; 9721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_to_user(p, drive->id, (cmd == HDIO_GET_IDENTITY) ? sizeof(*drive->id) : 142)) 9731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 9741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 9751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_GET_NICE: 9771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return put_user(drive->dsc_overlap << IDE_NICE_DSC_OVERLAP | 9781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->atapi_overlap << IDE_NICE_ATAPI_OVERLAP | 97992b83c8f3219c36d61a6600ceb422e65c409be59Bartlomiej Zolnierkiewicz drive->nice1 << IDE_NICE_1, 9801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (long __user *) arg); 9811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_IDE_TASK_IOCTL 9821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_TASKFILE: 9831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) 9841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 9851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch(drive->media) { 9861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case ide_disk: 9871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_taskfile_ioctl(drive, cmd, arg); 9881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 9891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMSG; 9901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 9911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_IDE_TASK_IOCTL */ 9921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_CMD: 9941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) 9951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 9961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_cmd_ioctl(drive, cmd, arg); 9971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_TASK: 9991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) 10001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 10011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_task_ioctl(drive, cmd, arg); 10021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_SCAN_HWIF: 10041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 10051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw_regs_t hw; 10061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int args[3]; 10071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) return -EACCES; 10081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_from_user(args, p, 3 * sizeof(int))) 10091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 10101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memset(&hw, 0, sizeof(hw)); 10111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_init_hwif_ports(&hw, (unsigned long) args[0], 10121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (unsigned long) args[1], NULL); 10131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw.irq = args[2]; 1014cbb010c180294a5242a7681555c28737d9dd26abBartlomiej Zolnierkiewicz if (ide_register_hw(&hw, NULL, NULL) == -1) 10151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EIO; 10161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_UNREGISTER_HWIF: 10191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_RAWIO)) return -EACCES; 10201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* (arg > MAX_HWIFS) checked in function */ 1021f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz ide_unregister(arg, 1, 1); 10221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_SET_NICE: 10241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) return -EACCES; 10251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (arg != (arg & ((1 << IDE_NICE_DSC_OVERLAP) | (1 << IDE_NICE_1)))) 10261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 10271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->dsc_overlap = (arg >> IDE_NICE_DSC_OVERLAP) & 1; 10281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drv = *(ide_driver_t **)bdev->bd_disk->private_data; 10291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (drive->dsc_overlap && !drv->supports_dsc_overlap) { 10301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->dsc_overlap = 0; 10311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EPERM; 10321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->nice1 = (arg >> IDE_NICE_1) & 1; 10341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_DRIVE_RESET: 1036dbecebca1914f414008553b57aefde95b70f9142Bartlomiej Zolnierkiewicz if (!capable(CAP_SYS_ADMIN)) 1037dbecebca1914f414008553b57aefde95b70f9142Bartlomiej Zolnierkiewicz return -EACCES; 1038dbecebca1914f414008553b57aefde95b70f9142Bartlomiej Zolnierkiewicz 10391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 10401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Abort the current command on the 10411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * group if there is one, taking 10421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * care not to allow anything else 10431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to be queued and to die on the 10441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * spot if we miss one somehow 10451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 10461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_lock_irqsave(&ide_lock, flags); 10481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1049913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox if (HWGROUP(drive)->resetting) { 1050913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox spin_unlock_irqrestore(&ide_lock, flags); 1051913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox return -EBUSY; 1052913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox } 1053913759ac90a727b86da72efcfb70931f497d1cb7Alan Cox 10541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_abort(drive, "drive reset"); 10551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1056125e18745f16685f69a34fd6130d47598fc4bf54Eric Sesterhenn BUG_ON(HWGROUP(drive)->handler); 1057dbecebca1914f414008553b57aefde95b70f9142Bartlomiej Zolnierkiewicz 10581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Ensure nothing gets queued after we 10591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drop the lock. Reset will clear the busy */ 1060dbecebca1914f414008553b57aefde95b70f9142Bartlomiej Zolnierkiewicz 10611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds HWGROUP(drive)->busy = 1; 10621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spin_unlock_irqrestore(&ide_lock, flags); 10631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) ide_do_reset(drive); 10641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_GET_BUSSTATE: 10671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) 10681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 10691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (put_user(HWIF(drive)->bus_state, (long __user *)arg)) 10701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 10711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 10721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 10731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case HDIO_SET_BUSSTATE: 10741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!capable(CAP_SYS_ADMIN)) 10751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EACCES; 10761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EOPNOTSUPP; 10771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 10781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 10791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 10801497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 10811497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewiczread_val: 1082f9383c4269d264c3cf563bd2de365891f6592ebdMatthias Kaehlcke mutex_lock(&ide_setting_mtx); 10831497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz spin_lock_irqsave(&ide_lock, flags); 10841497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz err = *val; 10851497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz spin_unlock_irqrestore(&ide_lock, flags); 1086f9383c4269d264c3cf563bd2de365891f6592ebdMatthias Kaehlcke mutex_unlock(&ide_setting_mtx); 10871497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return err >= 0 ? put_user(err, (long __user *)arg) : err; 10881497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz 10891497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewiczset_val: 10901497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (bdev != bdev->bd_contains) 10911497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz err = -EINVAL; 10921497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz else { 10931497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz if (!capable(CAP_SYS_ADMIN)) 10941497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz err = -EACCES; 10951497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz else { 1096f9383c4269d264c3cf563bd2de365891f6592ebdMatthias Kaehlcke mutex_lock(&ide_setting_mtx); 10971497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz err = setfunc(drive, arg); 1098f9383c4269d264c3cf563bd2de365891f6592ebdMatthias Kaehlcke mutex_unlock(&ide_setting_mtx); 10991497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz } 11001497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz } 11011497943ee692aa7519fa972d0e3a339649bf3a96Bartlomiej Zolnierkiewicz return err; 11021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(generic_ide_ioctl); 11051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * stridx() returns the offset of c within s, 11081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or -1 if c is '\0' or not found within s. 11091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init stridx (const char *s, char c) 11111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *i = strchr(s, c); 11131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (i && c) ? i - s : -1; 11141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * match_parm() does parsing for ide_setup(): 11181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1. the first char of s must be '='. 11201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2. if the remainder matches one of the supplied keywords, 11211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the index (1 based) of the keyword is negated and returned. 11221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3. if the remainder is a series of no more than max_vals numbers 11231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * separated by commas, the numbers are saved in vals[] and a 11241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * count of how many were saved is returned. Base10 is assumed, 11251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and base16 is allowed when prefixed with "0x". 11261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4. otherwise, zero is returned. 11271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init match_parm (char *s, const char *keywords[], int vals[], int max_vals) 11291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static const char *decimal = "0123456789"; 11311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static const char *hex = "0123456789abcdef"; 11321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, n; 11331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (*s++ == '=') { 11351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 11361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Try matching against the supplied keywords, 11371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and return -(index+1) if we match one 11381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (keywords != NULL) { 11401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; *keywords != NULL; ++i) { 11411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, *keywords++)) 11421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -(i+1); 11431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 11461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for a series of no more than "max_vals" 11471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * numeric values separated by commas, in base10, 11481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * or base16 when prefixed with "0x". 11491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Return a count of how many were found. 11501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (n = 0; (i = stridx(decimal, *s)) >= 0;) { 11521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[n] = i; 11531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((i = stridx(decimal, *++s)) >= 0) 11541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[n] = (vals[n] * 10) + i; 11551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (*s == 'x' && !vals[n]) { 11561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((i = stridx(hex, *++s)) >= 0) 11571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[n] = (vals[n] * 0x10) + i; 11581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (++n == max_vals) 11601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 11611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (*s == ',' || *s == ';') 11621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ++s; 11631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!*s) 11651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return n; 11661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 11671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* zero = nothing matched */ 11681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 11691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1170849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_ali14xx; 1171849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_umc8672; 1172849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_dtc2278; 1173849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_ht6560b; 1174849138827c962589ac50496fa7feeb2a2d51b467Bartlomiej Zolnierkiewiczextern int probe_qd65xx; 1175ade2daf9c6e57845fe83a24e0a9fa1c03c6e91b1Bartlomiej Zolnierkiewiczextern int cmd640_vlb; 11761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __initdata is_chipset_set[MAX_HWIFS]; 11781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 11801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_setup() gets called VERY EARLY during initialization, 11811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to handle kernel "command line" strings beginning with "hdx=" or "ide". 11821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 11831c10e93828f8861c3f58d647e259de0e2c63b930Randy Dunlap * Remember to update Documentation/ide/ide.txt if you change something here. 11841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 11851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init ide_setup(char *s) 11861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 11871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, vals[3]; 11881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif; 11891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_drive_t *drive; 11901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int hw, unit; 11911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char max_drive = 'a' + ((MAX_HWIFS * MAX_DRIVES) - 1); 11921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char max_hwif = '0' + (MAX_HWIFS - 1); 11931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(s,"hd",2) == 0 && s[2] == '=') /* hd= is for hd.c */ 11961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; /* driver and not us */ 11971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(s,"ide",3) && strncmp(s,"idebus",6) && strncmp(s,"hd",2)) 11991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 12001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "ide_setup: %s", s); 12021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_ide_data (); 12031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEDOUBLER 12051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, "ide=doubler")) { 12061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds extern int ide_doubler; 12071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" : Enabled support for IDE doublers\n"); 12091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_doubler = 1; 12101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 12111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_IDEDOUBLER */ 12131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!strcmp(s, "ide=nodma")) { 12151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" : Prevented DMA\n"); 12161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds noautodma = 1; 1217c223701cf6c706f42840631c1ca919a18e6e2800Bartlomiej Zolnierkiewicz goto obsolete_option; 12181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1220e3a59b4d9378522479609042836ae930305a67feHannes Reinecke#ifdef CONFIG_BLK_DEV_IDEACPI 1221e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!strcmp(s, "ide=noacpi")) { 1222e3a59b4d9378522479609042836ae930305a67feHannes Reinecke //printk(" : Disable IDE ACPI support.\n"); 1223e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_noacpi = 1; 1224e3a59b4d9378522479609042836ae930305a67feHannes Reinecke return 1; 1225e3a59b4d9378522479609042836ae930305a67feHannes Reinecke } 1226e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!strcmp(s, "ide=acpigtf")) { 1227e3a59b4d9378522479609042836ae930305a67feHannes Reinecke //printk(" : Enable IDE ACPI _GTF support.\n"); 1228e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_noacpitfs = 0; 1229e3a59b4d9378522479609042836ae930305a67feHannes Reinecke return 1; 1230e3a59b4d9378522479609042836ae930305a67feHannes Reinecke } 1231e3a59b4d9378522479609042836ae930305a67feHannes Reinecke if (!strcmp(s, "ide=acpionboot")) { 1232e3a59b4d9378522479609042836ae930305a67feHannes Reinecke //printk(" : Call IDE ACPI methods on boot.\n"); 1233e3a59b4d9378522479609042836ae930305a67feHannes Reinecke ide_noacpionboot = 0; 1234e3a59b4d9378522479609042836ae930305a67feHannes Reinecke return 1; 1235e3a59b4d9378522479609042836ae930305a67feHannes Reinecke } 1236e3a59b4d9378522479609042836ae930305a67feHannes Reinecke#endif /* CONFIG_BLK_DEV_IDEACPI */ 1237e3a59b4d9378522479609042836ae930305a67feHannes Reinecke 12381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 12391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for drive options: "hdx=" 12401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 12411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[0] == 'h' && s[1] == 'd' && s[2] >= 'a' && s[2] <= max_drive) { 12421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds const char *hd_words[] = { 1243c223701cf6c706f42840631c1ca919a18e6e2800Bartlomiej Zolnierkiewicz "none", "noprobe", "nowerr", "cdrom", "nodma", 12449e47be0c97f7357b80e91dc0632e9cce2eb025e0Bartlomiej Zolnierkiewicz "autotune", "noautotune", "-8", "-9", "-10", 1245361934849e9c0418950bedf667732f36337d88b9Jens Axboe "noflush", "remap", "remap63", "scsi", NULL }; 12461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit = s[2] - 'a'; 12471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw = unit / MAX_DRIVES; 12481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unit = unit % MAX_DRIVES; 12491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[hw]; 12501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive = &hwif->drives[unit]; 12511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (strncmp(s + 4, "ide-", 4) == 0) { 12521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds strlcpy(drive->driver_req, s + 4, sizeof(drive->driver_req)); 125315220d9b5a7e6f4ff251350b285674ed676e0d3dBartlomiej Zolnierkiewicz goto obsolete_option; 12541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 12551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (match_parm(&s[3], hd_words, vals, 3)) { 12561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -1: /* "none" */ 12571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -2: /* "noprobe" */ 12581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->noprobe = 1; 12591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 12601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -3: /* "nowerr" */ 12611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->bad_wstat = BAD_R_STAT; 12621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 12631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 12641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -4: /* "cdrom" */ 12651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->present = 1; 12661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->media = ide_cdrom; 12671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* an ATAPI device ignores DRDY */ 12681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ready_stat = 0; 12691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 12701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 1271c223701cf6c706f42840631c1ca919a18e6e2800Bartlomiej Zolnierkiewicz case -5: /* nodma */ 1272c223701cf6c706f42840631c1ca919a18e6e2800Bartlomiej Zolnierkiewicz drive->nodma = 1; 1273c223701cf6c706f42840631c1ca919a18e6e2800Bartlomiej Zolnierkiewicz goto done; 12741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -6: /* "autotune" */ 12751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->autotune = IDE_TUNE_AUTO; 12761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 12771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -7: /* "noautotune" */ 12781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->autotune = IDE_TUNE_NOAUTO; 12791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 1280361934849e9c0418950bedf667732f36337d88b9Jens Axboe case -11: /* noflush */ 1281361934849e9c0418950bedf667732f36337d88b9Jens Axboe drive->noflush = 1; 1282361934849e9c0418950bedf667732f36337d88b9Jens Axboe goto done; 12831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -12: /* "remap" */ 12841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->remap_0_to_1 = 1; 1285d708c40da83a86551556999e924e27fdc43dad71Bartlomiej Zolnierkiewicz goto obsolete_option; 12861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -13: /* "remap63" */ 12871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->sect0 = 63; 1288d708c40da83a86551556999e924e27fdc43dad71Bartlomiej Zolnierkiewicz goto obsolete_option; 12891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -14: /* "scsi" */ 12901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->scsi = 1; 129115220d9b5a7e6f4ff251350b285674ed676e0d3dBartlomiej Zolnierkiewicz goto obsolete_option; 12921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 3: /* cyl,head,sect */ 12931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->media = ide_disk; 12941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->ready_stat = READY_STAT; 12951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->cyl = drive->bios_cyl = vals[0]; 12961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->head = drive->bios_head = vals[1]; 12971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->sect = drive->bios_sect = vals[2]; 12981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->present = 1; 12991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds drive->forced_geom = 1; 13001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 13011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 13031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 13041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[0] != 'i' || s[1] != 'd' || s[2] != 'e') 13081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 13091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for bus speed option: "idebus=" 13111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[3] == 'b' && s[4] == 'u' && s[5] == 's') { 13131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (match_parm(&s[6], NULL, vals, 1) != 1) 13141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 13151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (vals[0] >= 20 && vals[0] <= 66) { 13161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds idebus_parameter = vals[0]; 13171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 13181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- BAD BUS SPEED! Expected value from 20 to 66"); 13191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto done; 13201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Look for interface options: "idex=" 13231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (s[3] >= '0' && s[3] <= max_hwif) { 13251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Be VERY CAREFUL changing this: note hardcoded indexes below 13271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (-8, -9, -10) are reserved to ease the hardcoding. 13281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds static const char *ide_words[] = { 1330b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz "noprobe", "serialize", "minus3", "minus4", 13311b5169405e50b98b2bd1e4f86c7706ea24a59193Bartlomiej Zolnierkiewicz "reset", "minus6", "ata66", "minus8", "minus9", 13321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "minus10", "four", "qd65xx", "ht6560b", "cmd640_vlb", 13331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "dtc2278", "umc8672", "ali14xx", NULL }; 13349239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz 13359239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz hw_regs_t hwregs; 13369239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz 13371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hw = s[3] - '0'; 13381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif = &ide_hwifs[hw]; 13391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = match_parm(&s[4], ide_words, vals, 3); 13401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Cryptic check to ensure chipset not already set for hwif. 13431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: we can't depend on hwif->chipset here. 13441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 13451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((i >= -18 && i <= -11) || (i > 0 && i <= 3)) { 13461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* chipset already specified */ 13471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (is_chipset_set[hw]) 13481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 13491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i > -18 && i <= -11) { 13501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* these drivers are for "ide0=" only */ 13511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hw != 0) 13521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_hwif; 13531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* chipset already specified for 2nd port */ 13541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (is_chipset_set[hw+1]) 13551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 13561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds is_chipset_set[hw] = 1; 13581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("\n"); 13591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 13601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 13611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (i) { 13621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_ALI14XX 13631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -17: /* "ali14xx" */ 13641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_ali14xx = 1; 13659c027c684bd01b91a7aecc63161b56071685ce7dBartlomiej Zolnierkiewicz goto obsolete_option; 13661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 13671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_UMC8672 13681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -16: /* "umc8672" */ 13691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_umc8672 = 1; 13709c027c684bd01b91a7aecc63161b56071685ce7dBartlomiej Zolnierkiewicz goto obsolete_option; 13711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 13721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_DTC2278 13731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -15: /* "dtc2278" */ 13741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_dtc2278 = 1; 13759c027c684bd01b91a7aecc63161b56071685ce7dBartlomiej Zolnierkiewicz goto obsolete_option; 13761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 13771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_CMD640 13781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -14: /* "cmd640_vlb" */ 13791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds cmd640_vlb = 1; 13809c027c684bd01b91a7aecc63161b56071685ce7dBartlomiej Zolnierkiewicz goto obsolete_option; 13811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 13821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_HT6560B 13831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -13: /* "ht6560b" */ 13841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_ht6560b = 1; 13859c027c684bd01b91a7aecc63161b56071685ce7dBartlomiej Zolnierkiewicz goto obsolete_option; 13861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 13871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_QD65XX 13881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -12: /* "qd65xx" */ 13891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds probe_qd65xx = 1; 13909c027c684bd01b91a7aecc63161b56071685ce7dBartlomiej Zolnierkiewicz goto obsolete_option; 13911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 13921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_4DRIVES 13931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -11: /* "four" drives on one set of ports */ 13941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 13951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *mate = &ide_hwifs[hw^1]; 13961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mate->drives[0].select.all ^= 0x20; 13971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mate->drives[1].select.all ^= 0x20; 13981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = mate->chipset = ide_4drives; 13991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mate->irq = hwif->irq; 14001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds memcpy(mate->io_ports, hwif->io_ports, sizeof(hwif->io_ports)); 1401b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz hwif->mate = mate; 1402b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz mate->mate = hwif; 1403b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz hwif->serialized = mate->serialized = 1; 1404b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz goto obsolete_option; 14051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_4DRIVES */ 14071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -10: /* minus10 */ 14081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -9: /* minus9 */ 14091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -8: /* minus8 */ 14101b5169405e50b98b2bd1e4f86c7706ea24a59193Bartlomiej Zolnierkiewicz case -6: 1411b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz case -4: 1412b6209a90eca8c9a464bf9c5b91741fb125185619Bartlomiej Zolnierkiewicz case -3: 14131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_option; 14141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -7: /* ata66 */ 14151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEPCI 141649521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz /* 141749521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz * Use ATA_CBL_PATA40_SHORT so drive side 141849521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz * cable detection is also overriden. 141949521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz */ 142049521f97ccd3c2bf6e71a91cea8fe65d170fa4fbBartlomiej Zolnierkiewicz hwif->cbl = ATA_CBL_PATA40_SHORT; 14211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 14221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 14231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto bad_hwif; 14241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 14251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -5: /* "reset" */ 14261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->reset = 1; 14271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 14281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -2: /* "serialize" */ 14291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mate = &ide_hwifs[hw^1]; 14301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->mate->mate = hwif; 14311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->serialized = hwif->mate->serialized = 1; 14321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 14331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case -1: /* "noprobe" */ 14351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 1; 1436c53ea18dc29a1ac075119f651d6ac4386a549a34Bartlomiej Zolnierkiewicz goto obsolete_option; 14371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 1: /* base */ 14391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[1] = vals[0] + 0x206; /* default ctl */ 14401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 2: /* base,ctl */ 14411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vals[2] = 0; /* default irq = probe for it */ 14421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 3: /* base,ctl,irq */ 14439239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz memset(&hwregs, 0, sizeof(hwregs)); 14449239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz ide_init_hwif_ports(&hwregs, vals[0], vals[1], &hwif->irq); 14459239b333939dd1e5b1a9f033a1c136273d58efe8Bartlomiej Zolnierkiewicz memcpy(hwif->io_ports, hwregs.io_ports, sizeof(hwif->io_ports)); 14461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->irq = vals[2]; 14471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->noprobe = 0; 14481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds hwif->chipset = ide_forced; 14491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto obsolete_option; 14501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case 0: goto bad_option; 14521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 14531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- SUPPORT NOT CONFIGURED IN THIS KERNEL\n"); 14541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 14551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 14571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsbad_option: 14581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- BAD OPTION\n"); 14591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 14601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsobsolete_option: 14611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(" -- OBSOLETE OPTION, WILL BE REMOVED SOON!\n"); 14621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 14631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsbad_hwif: 14641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("-- NOT SUPPORTED ON ide%d", hw); 14651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsdone: 14661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("\n"); 14671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 1; 14681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 14691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL(ide_lock); 14711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14728604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewiczstatic int ide_bus_match(struct device *dev, struct device_driver *drv) 14738604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz{ 14748604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz return 1; 14758604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz} 14768604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz 1477263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic char *media_string(ide_drive_t *drive) 1478263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1479263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers switch (drive->media) { 1480263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers case ide_disk: 1481263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "disk"; 1482263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers case ide_cdrom: 1483263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "cdrom"; 1484263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers case ide_tape: 1485263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "tape"; 1486263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers case ide_floppy: 1487263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "floppy"; 1488a7a832de9e9624bcf069a5369c3c38ba2f44d460Danny Kukawka case ide_optical: 1489a7a832de9e9624bcf069a5369c3c38ba2f44d460Danny Kukawka return "optical"; 1490263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers default: 1491263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return "UNKNOWN"; 1492263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers } 1493263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1494263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1495263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic ssize_t media_show(struct device *dev, struct device_attribute *attr, char *buf) 1496263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1497263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 1498263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return sprintf(buf, "%s\n", media_string(drive)); 1499263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1500263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1501263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic ssize_t drivename_show(struct device *dev, struct device_attribute *attr, char *buf) 1502263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1503263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 1504263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return sprintf(buf, "%s\n", drive->name); 1505263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1506263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1507263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) 1508263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1509263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 1510263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return sprintf(buf, "ide:m-%s\n", media_string(drive)); 1511263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1512263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1513e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewiczstatic ssize_t model_show(struct device *dev, struct device_attribute *attr, 1514e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz char *buf) 1515e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz{ 1516e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz ide_drive_t *drive = to_ide_device(dev); 1517e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz return sprintf(buf, "%s\n", drive->id->model); 1518e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz} 1519e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz 1520e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewiczstatic ssize_t firmware_show(struct device *dev, struct device_attribute *attr, 1521e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz char *buf) 1522e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz{ 1523e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz ide_drive_t *drive = to_ide_device(dev); 1524e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz return sprintf(buf, "%s\n", drive->id->fw_rev); 1525e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz} 1526e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz 1527e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewiczstatic ssize_t serial_show(struct device *dev, struct device_attribute *attr, 1528e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz char *buf) 1529e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz{ 1530e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz ide_drive_t *drive = to_ide_device(dev); 1531e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz return sprintf(buf, "%s\n", drive->id->serial_no); 1532e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz} 1533e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz 1534263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sieversstatic struct device_attribute ide_dev_attrs[] = { 1535263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers __ATTR_RO(media), 1536263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers __ATTR_RO(drivename), 1537263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers __ATTR_RO(modalias), 1538e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz __ATTR_RO(model), 1539e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz __ATTR_RO(firmware), 1540e11b9035a47da66fcd4bafd3a5f6b14f51ca667eBartlomiej Zolnierkiewicz __ATTR(serial, 0400, serial_show, NULL), 1541263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers __ATTR_NULL 1542263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers}; 1543263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 15447eff2e7a8b65c25920207324e56611150eb1cd9aKay Sieversstatic int ide_uevent(struct device *dev, struct kobj_uevent_env *env) 1545263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 1546263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 15477eff2e7a8b65c25920207324e56611150eb1cd9aKay Sievers 15487eff2e7a8b65c25920207324e56611150eb1cd9aKay Sievers add_uevent_var(env, "MEDIA=%s", media_string(drive)); 15497eff2e7a8b65c25920207324e56611150eb1cd9aKay Sievers add_uevent_var(env, "DRIVENAME=%s", drive->name); 15507eff2e7a8b65c25920207324e56611150eb1cd9aKay Sievers add_uevent_var(env, "MODALIAS=ide:m-%s", media_string(drive)); 1551263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return 0; 1552263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 1553263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 15544031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell Kingstatic int generic_ide_probe(struct device *dev) 15554031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King{ 15564031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_drive_t *drive = to_ide_device(dev); 15574031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_driver_t *drv = to_ide_driver(dev->driver); 15584031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 15594031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King return drv->probe ? drv->probe(drive) : -ENODEV; 15604031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King} 15614031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 15624031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell Kingstatic int generic_ide_remove(struct device *dev) 15634031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King{ 15644031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_drive_t *drive = to_ide_device(dev); 15654031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_driver_t *drv = to_ide_driver(dev->driver); 15664031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 15674031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King if (drv->remove) 15684031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King drv->remove(drive); 15694031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 15704031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King return 0; 15714031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King} 15724031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 15734031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell Kingstatic void generic_ide_shutdown(struct device *dev) 15744031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King{ 15754031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_drive_t *drive = to_ide_device(dev); 15764031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_driver_t *drv = to_ide_driver(dev->driver); 15774031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 15784031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King if (dev->driver && drv->shutdown) 15794031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King drv->shutdown(drive); 15804031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King} 15814031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 15821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct bus_type ide_bus_type = { 15831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "ide", 15848604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz .match = ide_bus_match, 1585263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers .uevent = ide_uevent, 15864031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King .probe = generic_ide_probe, 15874031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King .remove = generic_ide_remove, 15884031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King .shutdown = generic_ide_shutdown, 1589263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers .dev_attrs = ide_dev_attrs, 15901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .suspend = generic_ide_suspend, 15911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .resume = generic_ide_resume, 15921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 15931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 15948604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_bus_type); 15958604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz 1596f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewiczstatic void ide_port_class_release(struct device *portdev) 1597f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz{ 1598f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz ide_hwif_t *hwif = dev_get_drvdata(portdev); 1599f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz 1600f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz put_device(&hwif->gendev); 1601f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz} 1602f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz 16031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 16041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is gets invoked once during initialization, to set *everything* up 16051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 16061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init ide_init(void) 16071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1608349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap int ret; 1609349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap 1610eba8ff946177ca38dfde0bf1d8ce0703c45c49b9Bartlomiej Zolnierkiewicz printk(KERN_INFO "Uniform Multi-Platform E-IDE driver\n"); 16111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds system_bus_speed = ide_system_bus_speed(); 16121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1613537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz printk(KERN_INFO "ide: Assuming %dMHz system bus speed " 1614537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz "for PIO modes%s\n", system_bus_speed, 1615537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz idebus_parameter ? "" : "; override with idebus=xx"); 1616537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz 1617349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap ret = bus_register(&ide_bus_type); 1618349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap if (ret < 0) { 1619349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap printk(KERN_WARNING "IDE: bus_register error: %d\n", ret); 1620349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap return ret; 1621349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap } 16221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1623f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz ide_port_class = class_create(THIS_MODULE, "ide_port"); 1624f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz if (IS_ERR(ide_port_class)) { 1625f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz ret = PTR_ERR(ide_port_class); 1626f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz goto out_port_class; 1627f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz } 1628f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz ide_port_class->dev_release = ide_port_class_release; 1629f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz 16301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds init_ide_data(); 16311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16325cbf79cdb37be2aa2a1b4fa94144526b14557060Bartlomiej Zolnierkiewicz proc_ide_create(); 16331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 1635f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz 1636f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewiczout_port_class: 1637f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz bus_unregister(&ide_bus_type); 1638f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz 1639f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz return ret; 16401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef MODULE 16431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *options = NULL; 16441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_param(options, charp, 0); 16451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 16461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __init parse_options (char *line) 16481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *next = line; 16501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (line == NULL || !*line) 16521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 16531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds while ((line = next) != NULL) { 16541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((next = strchr(line,' ')) != NULL) 16551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *next++ = 0; 16561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!ide_setup(line)) 16571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk (KERN_INFO "Unknown option '%s'\n", line); 16581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 16591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1661fbd8ad30596409070801832335d3ea8cf1513dedSam Ravnborgint __init init_module (void) 16621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds parse_options(options); 16641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ide_init(); 16651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1667eb7972271720bfc64dc8bacc5b15f874c0bcc859Al Virovoid __exit cleanup_module (void) 16681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 16691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int index; 16701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (index = 0; index < MAX_HWIFS; ++index) 1672f82c2b171905b6d5af92395d8159546351ab602fBartlomiej Zolnierkiewicz ide_unregister(index, 0, 0); 16731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds proc_ide_destroy(); 16751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1676f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz class_destroy(ide_port_class); 1677f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz 16781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_unregister(&ide_bus_type); 16791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 16801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else /* !MODULE */ 16821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds__setup("", ide_setup); 16841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(ide_init); 16861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* MODULE */ 1688