11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 259bca8cc995428c34d8cdfadfa87c8e3f01c4340Bartlomiej Zolnierkiewicz * Copyright (C) 1994-1998 Linus Torvalds & authors (see below) 3fc410698ebf7abfb64f0e2337b871298557f0575Pavel Machek * Copyright (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#include <linux/module.h> 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/interrupt.h> 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/major.h> 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/genhd.h> 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ide.h> 583ceca727fe3a38dd8d7a3adf938fefda83eee8afBartlomiej Zolnierkiewicz#include <linux/hdreg.h> 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/completion.h> 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/device.h> 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 62f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewiczstruct class *ide_port_class; 63f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz 6408da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz/** 6508da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz * ide_device_get - get an additional reference to a ide_drive_t 6608da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz * @drive: device to get a reference to 6708da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz * 6808da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz * Gets a reference to the ide_drive_t and increments the use count of the 6908da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz * underlying LLDD module. 7008da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz */ 7108da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewiczint ide_device_get(ide_drive_t *drive) 7208da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz{ 7308da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz struct device *host_dev; 7408da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz struct module *module; 7508da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz 7608da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz if (!get_device(&drive->gendev)) 7708da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz return -ENXIO; 7808da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz 7908da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz host_dev = drive->hwif->host->dev[0]; 8008da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz module = host_dev ? host_dev->driver->owner : NULL; 8108da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz 8208da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz if (module && !try_module_get(module)) { 8308da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz put_device(&drive->gendev); 8408da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz return -ENXIO; 8508da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz } 8608da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz 8708da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz return 0; 8808da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz} 8908da591e14cf87247ec09b17c350235157a92fc3Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_device_get); 9008da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz 9108da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz/** 9208da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz * ide_device_put - release a reference to a ide_drive_t 9308da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz * @drive: device to release a reference on 9408da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz * 9508da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz * Release a reference to the ide_drive_t and decrements the use count of 9608da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz * the underlying LLDD module. 9708da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz */ 9808da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewiczvoid ide_device_put(ide_drive_t *drive) 9908da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz{ 10008da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz#ifdef CONFIG_MODULE_UNLOAD 10108da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz struct device *host_dev = drive->hwif->host->dev[0]; 10208da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz struct module *module = host_dev ? host_dev->driver->owner : NULL; 10308da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz 10408da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz if (module) 10508da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz module_put(module); 10608da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz#endif 10708da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz put_device(&drive->gendev); 10808da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz} 10908da591e14cf87247ec09b17c350235157a92fc3Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_device_put); 11008da591e14cf87247ec09b17c350235157a92fc3Bartlomiej Zolnierkiewicz 1118604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewiczstatic int ide_bus_match(struct device *dev, struct device_driver *drv) 1128604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz{ 1138604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz return 1; 1148604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz} 1158604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz 1167eff2e7a8b65c25920207324e56611150eb1cd9aKay Sieversstatic int ide_uevent(struct device *dev, struct kobj_uevent_env *env) 117263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers{ 118263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers ide_drive_t *drive = to_ide_device(dev); 1197eff2e7a8b65c25920207324e56611150eb1cd9aKay Sievers 120ebdab07dad3d3a008e519b0a028e1e1ad5ecaef0Bartlomiej Zolnierkiewicz add_uevent_var(env, "MEDIA=%s", ide_media_string(drive)); 1217eff2e7a8b65c25920207324e56611150eb1cd9aKay Sievers add_uevent_var(env, "DRIVENAME=%s", drive->name); 122ebdab07dad3d3a008e519b0a028e1e1ad5ecaef0Bartlomiej Zolnierkiewicz add_uevent_var(env, "MODALIAS=ide:m-%s", ide_media_string(drive)); 123263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers return 0; 124263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers} 125263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers 1264031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell Kingstatic int generic_ide_probe(struct device *dev) 1274031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King{ 1284031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_drive_t *drive = to_ide_device(dev); 1297f3c868ba78e486bd9d7569f884dd46d8f59bb18Bartlomiej Zolnierkiewicz struct ide_driver *drv = to_ide_driver(dev->driver); 1304031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 1314031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King return drv->probe ? drv->probe(drive) : -ENODEV; 1324031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King} 1334031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 1344031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell Kingstatic int generic_ide_remove(struct device *dev) 1354031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King{ 1364031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_drive_t *drive = to_ide_device(dev); 1377f3c868ba78e486bd9d7569f884dd46d8f59bb18Bartlomiej Zolnierkiewicz struct ide_driver *drv = to_ide_driver(dev->driver); 1384031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 1394031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King if (drv->remove) 1404031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King drv->remove(drive); 1414031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 1424031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King return 0; 1434031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King} 1444031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 1454031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell Kingstatic void generic_ide_shutdown(struct device *dev) 1464031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King{ 1474031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King ide_drive_t *drive = to_ide_device(dev); 1487f3c868ba78e486bd9d7569f884dd46d8f59bb18Bartlomiej Zolnierkiewicz struct ide_driver *drv = to_ide_driver(dev->driver); 1494031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 1504031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King if (dev->driver && drv->shutdown) 1514031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King drv->shutdown(drive); 1524031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King} 1534031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct bus_type ide_bus_type = { 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "ide", 1568604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz .match = ide_bus_match, 157263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers .uevent = ide_uevent, 1584031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King .probe = generic_ide_probe, 1594031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King .remove = generic_ide_remove, 1604031bbe4bbec6c0fe50412ef7fb43a270b0f29f1Russell King .shutdown = generic_ide_shutdown, 161263756ec228f1cdd49fc50b1f87001a4cebdfe12Kay Sievers .dev_attrs = ide_dev_attrs, 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .suspend = generic_ide_suspend, 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .resume = generic_ide_resume, 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1668604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_bus_type); 1678604affde9d4f52f04342d6a37c77d95fa167e7aBartlomiej Zolnierkiewicz 168ebae41a5a0583fb732c41445df4ac2c41016df74Bartlomiej Zolnierkiewiczint ide_vlb_clk; 169ebae41a5a0583fb732c41445df4ac2c41016df74Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_vlb_clk); 170ebae41a5a0583fb732c41445df4ac2c41016df74Bartlomiej Zolnierkiewicz 171ebae41a5a0583fb732c41445df4ac2c41016df74Bartlomiej Zolnierkiewiczmodule_param_named(vlb_clock, ide_vlb_clk, int, 0); 172ebae41a5a0583fb732c41445df4ac2c41016df74Bartlomiej ZolnierkiewiczMODULE_PARM_DESC(vlb_clock, "VLB clock frequency (in MHz)"); 173ebae41a5a0583fb732c41445df4ac2c41016df74Bartlomiej Zolnierkiewicz 174ebae41a5a0583fb732c41445df4ac2c41016df74Bartlomiej Zolnierkiewiczint ide_pci_clk; 175ebae41a5a0583fb732c41445df4ac2c41016df74Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_pci_clk); 176ebae41a5a0583fb732c41445df4ac2c41016df74Bartlomiej Zolnierkiewicz 177ebae41a5a0583fb732c41445df4ac2c41016df74Bartlomiej Zolnierkiewiczmodule_param_named(pci_clock, ide_pci_clk, int, 0); 178ebae41a5a0583fb732c41445df4ac2c41016df74Bartlomiej ZolnierkiewiczMODULE_PARM_DESC(pci_clock, "PCI bus clock frequency (in MHz)"); 179ebae41a5a0583fb732c41445df4ac2c41016df74Bartlomiej Zolnierkiewicz 1801a8bff5b404909436fcf03cac167a76ceaaa5547Rusty Russellstatic int ide_set_dev_param_mask(const char *s, const struct kernel_param *kp) 1816e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz{ 1826e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz int a, b, i, j = 1; 1836e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz unsigned int *dev_param_mask = (unsigned int *)kp->arg; 1846e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 1850af80c04e2f2e45ae09fceb17df8050f828a5c40David Fries /* controller . device (0 or 1) [ : 1 (set) | 0 (clear) ] */ 1866e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz if (sscanf(s, "%d.%d:%d", &a, &b, &j) != 3 && 1876e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz sscanf(s, "%d.%d", &a, &b) != 2) 1886e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz return -EINVAL; 1896e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 1906e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz i = a * MAX_DRIVES + b; 1916e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 1926e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz if (i >= MAX_HWIFS * MAX_DRIVES || j < 0 || j > 1) 1936e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz return -EINVAL; 1946e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 1956e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz if (j) 1966e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz *dev_param_mask |= (1 << i); 1976e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz else 1980af80c04e2f2e45ae09fceb17df8050f828a5c40David Fries *dev_param_mask &= ~(1 << i); 1996e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 2006e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz return 0; 2016e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz} 2026e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 2031a8bff5b404909436fcf03cac167a76ceaaa5547Rusty Russellstatic struct kernel_param_ops param_ops_ide_dev_mask = { 2041a8bff5b404909436fcf03cac167a76ceaaa5547Rusty Russell .set = ide_set_dev_param_mask 2051a8bff5b404909436fcf03cac167a76ceaaa5547Rusty Russell}; 2061a8bff5b404909436fcf03cac167a76ceaaa5547Rusty Russell 2071a8bff5b404909436fcf03cac167a76ceaaa5547Rusty Russell#define param_check_ide_dev_mask(name, p) param_check_uint(name, p) 2081a8bff5b404909436fcf03cac167a76ceaaa5547Rusty Russell 2096e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewiczstatic unsigned int ide_nodma; 2106e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 2111a8bff5b404909436fcf03cac167a76ceaaa5547Rusty Russellmodule_param_named(nodma, ide_nodma, ide_dev_mask, 0); 2126e87543a94fb2a966c81a61fc91246592f9719daBartlomiej ZolnierkiewiczMODULE_PARM_DESC(nodma, "disallow DMA for a device"); 2136e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 2146e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewiczstatic unsigned int ide_noflush; 2156e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 2161a8bff5b404909436fcf03cac167a76ceaaa5547Rusty Russellmodule_param_named(noflush, ide_noflush, ide_dev_mask, 0); 2176e87543a94fb2a966c81a61fc91246592f9719daBartlomiej ZolnierkiewiczMODULE_PARM_DESC(noflush, "disable flush requests for a device"); 2186e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 219075affcbe01d4d7cefcd0e30a98df1253bcf8d92Bartlomiej Zolnierkiewiczstatic unsigned int ide_nohpa; 220075affcbe01d4d7cefcd0e30a98df1253bcf8d92Bartlomiej Zolnierkiewicz 2211a8bff5b404909436fcf03cac167a76ceaaa5547Rusty Russellmodule_param_named(nohpa, ide_nohpa, ide_dev_mask, 0); 222075affcbe01d4d7cefcd0e30a98df1253bcf8d92Bartlomiej ZolnierkiewiczMODULE_PARM_DESC(nohpa, "disable Host Protected Area for a device"); 223075affcbe01d4d7cefcd0e30a98df1253bcf8d92Bartlomiej Zolnierkiewicz 2246e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewiczstatic unsigned int ide_noprobe; 2256e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 2261a8bff5b404909436fcf03cac167a76ceaaa5547Rusty Russellmodule_param_named(noprobe, ide_noprobe, ide_dev_mask, 0); 2276e87543a94fb2a966c81a61fc91246592f9719daBartlomiej ZolnierkiewiczMODULE_PARM_DESC(noprobe, "skip probing for a device"); 2286e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 2296e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewiczstatic unsigned int ide_nowerr; 2306e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 2311a8bff5b404909436fcf03cac167a76ceaaa5547Rusty Russellmodule_param_named(nowerr, ide_nowerr, ide_dev_mask, 0); 2323a7d24841ad794ae64c90d7d00d62a83741912aaBartlomiej ZolnierkiewiczMODULE_PARM_DESC(nowerr, "ignore the ATA_DF bit for a device"); 2336e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 2344706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewiczstatic unsigned int ide_cdroms; 2354706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz 2361a8bff5b404909436fcf03cac167a76ceaaa5547Rusty Russellmodule_param_named(cdrom, ide_cdroms, ide_dev_mask, 0); 2374706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej ZolnierkiewiczMODULE_PARM_DESC(cdrom, "force device as a CD-ROM"); 2384706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz 2394706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewiczstruct chs_geom { 2404706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz unsigned int cyl; 2414706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz u8 head; 2424706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz u8 sect; 2434706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz}; 2444706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz 2454706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewiczstatic unsigned int ide_disks; 2464706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewiczstatic struct chs_geom ide_disks_chs[MAX_HWIFS * MAX_DRIVES]; 2474706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz 2484706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewiczstatic int ide_set_disk_chs(const char *str, struct kernel_param *kp) 2494706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz{ 2504706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz int a, b, c = 0, h = 0, s = 0, i, j = 1; 2514706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz 2520af80c04e2f2e45ae09fceb17df8050f828a5c40David Fries /* controller . device (0 or 1) : Cylinders , Heads , Sectors */ 2530af80c04e2f2e45ae09fceb17df8050f828a5c40David Fries /* controller . device (0 or 1) : 1 (use CHS) | 0 (ignore CHS) */ 2544706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz if (sscanf(str, "%d.%d:%d,%d,%d", &a, &b, &c, &h, &s) != 5 && 2554706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz sscanf(str, "%d.%d:%d", &a, &b, &j) != 3) 2564706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz return -EINVAL; 2574706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz 2584706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz i = a * MAX_DRIVES + b; 2594706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz 2604706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz if (i >= MAX_HWIFS * MAX_DRIVES || j < 0 || j > 1) 2614706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz return -EINVAL; 2624706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz 2634706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz if (c > INT_MAX || h > 255 || s > 255) 2644706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz return -EINVAL; 2654706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz 2664706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz if (j) 2674706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz ide_disks |= (1 << i); 2684706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz else 2690af80c04e2f2e45ae09fceb17df8050f828a5c40David Fries ide_disks &= ~(1 << i); 2704706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz 2714706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz ide_disks_chs[i].cyl = c; 2724706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz ide_disks_chs[i].head = h; 2734706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz ide_disks_chs[i].sect = s; 2744706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz 2754706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz return 0; 2764706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz} 2774706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz 2784706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewiczmodule_param_call(chs, ide_set_disk_chs, NULL, NULL, 0); 2794706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej ZolnierkiewiczMODULE_PARM_DESC(chs, "force device as a disk (using CHS)"); 2804706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz 281123995b97136cb41fa282f0ed2385f2c8066df96Bartlomiej Zolnierkiewiczstatic void ide_dev_apply_params(ide_drive_t *drive, u8 unit) 2826e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz{ 283123995b97136cb41fa282f0ed2385f2c8066df96Bartlomiej Zolnierkiewicz int i = drive->hwif->index * MAX_DRIVES + unit; 2846e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 2856e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz if (ide_nodma & (1 << i)) { 2866e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz printk(KERN_INFO "ide: disallowing DMA for %s\n", drive->name); 28797100fc816badbbc162644cfde7ad39ae9211fb4Bartlomiej Zolnierkiewicz drive->dev_flags |= IDE_DFLAG_NODMA; 2886e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz } 2896e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz if (ide_noflush & (1 << i)) { 2906e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz printk(KERN_INFO "ide: disabling flush requests for %s\n", 2916e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz drive->name); 29297100fc816badbbc162644cfde7ad39ae9211fb4Bartlomiej Zolnierkiewicz drive->dev_flags |= IDE_DFLAG_NOFLUSH; 2936e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz } 294075affcbe01d4d7cefcd0e30a98df1253bcf8d92Bartlomiej Zolnierkiewicz if (ide_nohpa & (1 << i)) { 295075affcbe01d4d7cefcd0e30a98df1253bcf8d92Bartlomiej Zolnierkiewicz printk(KERN_INFO "ide: disabling Host Protected Area for %s\n", 296075affcbe01d4d7cefcd0e30a98df1253bcf8d92Bartlomiej Zolnierkiewicz drive->name); 297075affcbe01d4d7cefcd0e30a98df1253bcf8d92Bartlomiej Zolnierkiewicz drive->dev_flags |= IDE_DFLAG_NOHPA; 298075affcbe01d4d7cefcd0e30a98df1253bcf8d92Bartlomiej Zolnierkiewicz } 2996e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz if (ide_noprobe & (1 << i)) { 3006e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz printk(KERN_INFO "ide: skipping probe for %s\n", drive->name); 30197100fc816badbbc162644cfde7ad39ae9211fb4Bartlomiej Zolnierkiewicz drive->dev_flags |= IDE_DFLAG_NOPROBE; 3026e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz } 3036e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz if (ide_nowerr & (1 << i)) { 3043a7d24841ad794ae64c90d7d00d62a83741912aaBartlomiej Zolnierkiewicz printk(KERN_INFO "ide: ignoring the ATA_DF bit for %s\n", 3056e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz drive->name); 3066e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz drive->bad_wstat = BAD_R_STAT; 3076e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz } 3084706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz if (ide_cdroms & (1 << i)) { 3094706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz printk(KERN_INFO "ide: forcing %s as a CD-ROM\n", drive->name); 31097100fc816badbbc162644cfde7ad39ae9211fb4Bartlomiej Zolnierkiewicz drive->dev_flags |= IDE_DFLAG_PRESENT; 3114706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz drive->media = ide_cdrom; 3124706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz /* an ATAPI device ignores DRDY */ 3134706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz drive->ready_stat = 0; 3144706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz } 3154706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz if (ide_disks & (1 << i)) { 3164706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz drive->cyl = drive->bios_cyl = ide_disks_chs[i].cyl; 3174706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz drive->head = drive->bios_head = ide_disks_chs[i].head; 3184706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz drive->sect = drive->bios_sect = ide_disks_chs[i].sect; 31997100fc816badbbc162644cfde7ad39ae9211fb4Bartlomiej Zolnierkiewicz 3204706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz printk(KERN_INFO "ide: forcing %s as a disk (%d/%d/%d)\n", 3214706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz drive->name, 3224706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz drive->cyl, drive->head, drive->sect); 32397100fc816badbbc162644cfde7ad39ae9211fb4Bartlomiej Zolnierkiewicz 32497100fc816badbbc162644cfde7ad39ae9211fb4Bartlomiej Zolnierkiewicz drive->dev_flags |= IDE_DFLAG_FORCED_GEOM | IDE_DFLAG_PRESENT; 3254706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz drive->media = ide_disk; 3263a7d24841ad794ae64c90d7d00d62a83741912aaBartlomiej Zolnierkiewicz drive->ready_stat = ATA_DRDY; 3274706a7e03a03d6d206a93a49a0c723dd612cf8e9Bartlomiej Zolnierkiewicz } 3286e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz} 3296e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 3309fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewiczstatic unsigned int ide_ignore_cable; 3319fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz 3329fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewiczstatic int ide_set_ignore_cable(const char *s, struct kernel_param *kp) 3339fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz{ 3349fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz int i, j = 1; 3359fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz 3360af80c04e2f2e45ae09fceb17df8050f828a5c40David Fries /* controller (ignore) */ 3370af80c04e2f2e45ae09fceb17df8050f828a5c40David Fries /* controller : 1 (ignore) | 0 (use) */ 3389fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz if (sscanf(s, "%d:%d", &i, &j) != 2 && sscanf(s, "%d", &i) != 1) 3399fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz return -EINVAL; 3409fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz 3419fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz if (i >= MAX_HWIFS || j < 0 || j > 1) 3429fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz return -EINVAL; 3439fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz 3449fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz if (j) 3459fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz ide_ignore_cable |= (1 << i); 3469fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz else 3470af80c04e2f2e45ae09fceb17df8050f828a5c40David Fries ide_ignore_cable &= ~(1 << i); 3489fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz 3499fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz return 0; 3509fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz} 3519fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz 3529fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewiczmodule_param_call(ignore_cable, ide_set_ignore_cable, NULL, NULL, 0); 3539fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej ZolnierkiewiczMODULE_PARM_DESC(ignore_cable, "ignore cable detection"); 3549fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz 3559fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewiczvoid ide_port_apply_params(ide_hwif_t *hwif) 3569fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz{ 3572bd24a1cfc99d242c2cff9a6b74ca49fcaac3fb6Bartlomiej Zolnierkiewicz ide_drive_t *drive; 3586e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz int i; 3596e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 3609fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz if (ide_ignore_cable & (1 << hwif->index)) { 3619fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz printk(KERN_INFO "ide: ignoring cable detection for %s\n", 3629fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz hwif->name); 3639fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz hwif->cbl = ATA_CBL_PATA40_SHORT; 3649fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz } 3656e87543a94fb2a966c81a61fc91246592f9719daBartlomiej Zolnierkiewicz 3662bd24a1cfc99d242c2cff9a6b74ca49fcaac3fb6Bartlomiej Zolnierkiewicz ide_port_for_each_dev(i, drive, hwif) 3672bd24a1cfc99d242c2cff9a6b74ca49fcaac3fb6Bartlomiej Zolnierkiewicz ide_dev_apply_params(drive, i); 3689fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz} 3699fd91d959f1a19d1bfa46d97cbbbb55641ce26a6Bartlomiej Zolnierkiewicz 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is gets invoked once during initialization, to set *everything* up 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init ide_init(void) 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 375349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap int ret; 376349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap 377eba8ff946177ca38dfde0bf1d8ce0703c45c49b9Bartlomiej Zolnierkiewicz printk(KERN_INFO "Uniform Multi-Platform E-IDE driver\n"); 378537f06c5deaffbbe155bcc898369f889e7f3e647Bartlomiej Zolnierkiewicz 379349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap ret = bus_register(&ide_bus_type); 380349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap if (ret < 0) { 381349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap printk(KERN_WARNING "IDE: bus_register error: %d\n", ret); 382349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap return ret; 383349ae23fe7379a42973bcb1c85f7d43ec583c17dRandy Dunlap } 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 385f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz ide_port_class = class_create(THIS_MODULE, "ide_port"); 386f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz if (IS_ERR(ide_port_class)) { 387f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz ret = PTR_ERR(ide_port_class); 388f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz goto out_port_class; 389f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz } 390f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz 3918b803bd184e3f6892284d4b50801b9ec85cd9b96Bartlomiej Zolnierkiewicz ide_acpi_init(); 3928b803bd184e3f6892284d4b50801b9ec85cd9b96Bartlomiej Zolnierkiewicz 3935cbf79cdb37be2aa2a1b4fa94144526b14557060Bartlomiej Zolnierkiewicz proc_ide_create(); 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 396f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz 397f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewiczout_port_class: 398f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz bus_unregister(&ide_bus_type); 399f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz 400f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz return ret; 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 403931ee0dc5c69e8113233d21942681ab8fecde7f9Bartlomiej Zolnierkiewiczstatic void __exit ide_exit(void) 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds proc_ide_destroy(); 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 407f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz class_destroy(ide_port_class); 408f74c91413ec6140ee0553180c5f56fdd27c22a2eBartlomiej Zolnierkiewicz 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds bus_unregister(&ide_bus_type); 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(ide_init); 413931ee0dc5c69e8113233d21942681ab8fecde7f9Bartlomiej Zolnierkiewiczmodule_exit(ide_exit); 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 415931ee0dc5c69e8113233d21942681ab8fecde7f9Bartlomiej ZolnierkiewiczMODULE_LICENSE("GPL"); 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