/*
* Copyright (C) 1994-1998 Linus Torvalds & authors (see below)
- * Copyrifht (C) 2003-2005, 2007 Bartlomiej Zolnierkiewicz
+ * Copyright (C) 2003-2005, 2007 Bartlomiej Zolnierkiewicz
*/
/*
* inspiration from lots of linux users, esp. hamish@zot.apana.org.au
*/
-#define _IDE_C /* Tell ide.h it's really us */
-
#include <linux/module.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/kernel.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/major.h>
#include <linux/errno.h>
#include <linux/genhd.h>
-#include <linux/blkpg.h>
-#include <linux/slab.h>
#include <linux/init.h>
#include <linux/pci.h>
-#include <linux/delay.h>
#include <linux/ide.h>
+#include <linux/hdreg.h>
#include <linux/completion.h>
-#include <linux/reboot.h>
-#include <linux/cdrom.h>
-#include <linux/seq_file.h>
#include <linux/device.h>
-#include <linux/bitops.h>
-
-#include <asm/byteorder.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-
-
-/* default maximum number of failures */
-#define IDE_DEFAULT_MAX_FAILURES 1
struct class *ide_port_class;
-static const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR,
- IDE2_MAJOR, IDE3_MAJOR,
- IDE4_MAJOR, IDE5_MAJOR,
- IDE6_MAJOR, IDE7_MAJOR,
- IDE8_MAJOR, IDE9_MAJOR };
-
-static int idebus_parameter; /* holds the "idebus=" parameter */
-static int system_bus_speed; /* holds what we think is VESA/PCI bus speed */
-
-DEFINE_MUTEX(ide_cfg_mtx);
- __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock);
-
-int noautodma = 0;
-
-#ifdef CONFIG_BLK_DEV_IDEACPI
-int ide_noacpi = 0;
-int ide_noacpitfs = 1;
-int ide_noacpionboot = 1;
-#endif
-
-/*
- * This is declared extern in ide.h, for access by other IDE modules:
- */
-ide_hwif_t ide_hwifs[MAX_HWIFS]; /* master data repository */
-
-EXPORT_SYMBOL(ide_hwifs);
-
-static void ide_port_init_devices_data(ide_hwif_t *);
-
-/*
- * Do not even *think* about calling this!
- */
-void ide_init_port_data(ide_hwif_t *hwif, unsigned int index)
-{
- /* bulk initialize hwif & drive info with zeros */
- memset(hwif, 0, sizeof(ide_hwif_t));
-
- /* fill in any non-zero initial values */
- hwif->index = index;
- hwif->major = ide_hwif_to_major[index];
-
- hwif->name[0] = 'i';
- hwif->name[1] = 'd';
- hwif->name[2] = 'e';
- hwif->name[3] = '0' + index;
-
- hwif->bus_state = BUSSTATE_ON;
-
- init_completion(&hwif->gendev_rel_comp);
-
- default_hwif_iops(hwif);
- default_hwif_transport(hwif);
-
- ide_port_init_devices_data(hwif);
-}
-EXPORT_SYMBOL_GPL(ide_init_port_data);
-
-static void ide_port_init_devices_data(ide_hwif_t *hwif)
-{
- int unit;
-
- for (unit = 0; unit < MAX_DRIVES; ++unit) {
- ide_drive_t *drive = &hwif->drives[unit];
- u8 j = (hwif->index * MAX_DRIVES) + unit;
-
- memset(drive, 0, sizeof(*drive));
-
- drive->media = ide_disk;
- drive->select.all = (unit<<4)|0xa0;
- drive->hwif = hwif;
- drive->ctl = 0x08;
- drive->ready_stat = READY_STAT;
- drive->bad_wstat = BAD_W_STAT;
- drive->special.b.recalibrate = 1;
- drive->special.b.set_geometry = 1;
- drive->name[0] = 'h';
- drive->name[1] = 'd';
- drive->name[2] = 'a' + j;
- drive->max_failures = IDE_DEFAULT_MAX_FAILURES;
-
- INIT_LIST_HEAD(&drive->list);
- init_completion(&drive->gendev_rel_comp);
- }
-}
-
-#ifndef CONFIG_IDE_ARCH_OBSOLETE_DEFAULTS
-# define ide_default_io_base(index) (0)
-# define ide_init_default_irq(base) (0)
-#endif
-
-/*
- * init_ide_data() sets reasonable default values into all fields
- * of all instances of the hwifs and drives, but only on the first call.
- * Subsequent calls have no effect (they don't wipe out anything).
- *
- * This routine is normally called at driver initialization time,
- * but may also be called MUCH earlier during kernel "command-line"
- * parameter processing. As such, we cannot depend on any other parts
- * of the kernel (such as memory allocation) to be functioning yet.
- *
- * This is too bad, as otherwise we could dynamically allocate the
- * ide_drive_t structs as needed, rather than always consuming memory
- * for the max possible number (MAX_HWIFS * MAX_DRIVES) of them.
- *
- * FIXME: We should stuff the setup data into __init and copy the
- * relevant hwifs/allocate them properly during boot.
- */
-#define MAGIC_COOKIE 0x12345678
-static void __init init_ide_data (void)
-{
- unsigned int index;
- static unsigned long magic_cookie = MAGIC_COOKIE;
- hw_regs_t hw;
-
- if (magic_cookie != MAGIC_COOKIE)
- return; /* already initialized */
- magic_cookie = 0;
-
- /* Initialise all interface structures */
- for (index = 0; index < MAX_HWIFS; ++index) {
- ide_hwif_t *hwif = &ide_hwifs[index];
- unsigned long io_addr = ide_default_io_base(index);
- unsigned long ctl_addr = io_addr + 0x206;
-
- ide_init_port_data(hwif, index);
-
-#ifdef CONFIG_IDE_ARCH_OBSOLETE_DEFAULTS
- memset(&hw, 0, sizeof(hw));
- ide_std_init_ports(&hw, io_addr, ctl_addr);
- memcpy(hwif->io_ports, hw.io_ports, sizeof(hw.io_ports));
- hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET];
-#if !defined(CONFIG_PPC32) || defined(CONFIG_PPLUS) || !defined(CONFIG_PCI)
- hwif->irq =
- ide_init_default_irq(hwif->io_ports[IDE_DATA_OFFSET]);
-#endif
-#endif
- }
-}
-
/**
- * ide_system_bus_speed - guess bus speed
- *
- * ide_system_bus_speed() returns what we think is the system VESA/PCI
- * bus speed (in MHz). This is used for calculating interface PIO timings.
- * The default is 40 for known PCI systems, 50 otherwise.
- * The "idebus=xx" parameter can be used to override this value.
- * The actual value to be used is computed/displayed the first time
- * through. Drivers should only use this as a last resort.
+ * ide_device_get - get an additional reference to a ide_drive_t
+ * @drive: device to get a reference to
*
- * Returns a guessed speed in MHz.
+ * Gets a reference to the ide_drive_t and increments the use count of the
+ * underlying LLDD module.
*/
-
-static int ide_system_bus_speed(void)
+int ide_device_get(ide_drive_t *drive)
{
-#ifdef CONFIG_PCI
- static struct pci_device_id pci_default[] = {
- { PCI_DEVICE(PCI_ANY_ID, PCI_ANY_ID) },
- { }
- };
-#else
-#define pci_default 0
-#endif /* CONFIG_PCI */
-
- /* user supplied value */
- if (idebus_parameter)
- return idebus_parameter;
-
- /* safe default value for PCI or VESA and PCI*/
- return pci_dev_present(pci_default) ? 33 : 50;
-}
+ struct device *host_dev;
+ struct module *module;
-ide_hwif_t * ide_find_port(unsigned long base)
-{
- ide_hwif_t *hwif;
- int i;
+ if (!get_device(&drive->gendev))
+ return -ENXIO;
- for (i = 0; i < MAX_HWIFS; i++) {
- hwif = &ide_hwifs[i];
- if (hwif->io_ports[IDE_DATA_OFFSET] == base)
- goto found;
- }
+ host_dev = drive->hwif->host->dev[0];
+ module = host_dev ? host_dev->driver->owner : NULL;
- for (i = 0; i < MAX_HWIFS; i++) {
- hwif = &ide_hwifs[i];
- if (hwif->chipset == ide_unknown)
- goto found;
+ if (module && !try_module_get(module)) {
+ put_device(&drive->gendev);
+ return -ENXIO;
}
- hwif = NULL;
-found:
- return hwif;
-}
-
-EXPORT_SYMBOL_GPL(ide_find_port);
-
-static struct resource* hwif_request_region(ide_hwif_t *hwif,
- unsigned long addr, int num)
-{
- struct resource *res = request_region(addr, num, hwif->name);
-
- if (!res)
- printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
- hwif->name, addr, addr+num-1);
- return res;
-}
-
-/**
- * ide_hwif_request_regions - request resources for IDE
- * @hwif: interface to use
- *
- * Requests all the needed resources for an interface.
- * Right now core IDE code does this work which is deeply wrong.
- * MMIO leaves it to the controller driver,
- * PIO will migrate this way over time.
- */
-
-int ide_hwif_request_regions(ide_hwif_t *hwif)
-{
- unsigned long addr;
- unsigned int i;
-
- if (hwif->mmio)
- return 0;
- addr = hwif->io_ports[IDE_CONTROL_OFFSET];
- if (addr && !hwif_request_region(hwif, addr, 1))
- goto control_region_busy;
- hwif->straight8 = 0;
- addr = hwif->io_ports[IDE_DATA_OFFSET];
- if ((addr | 7) == hwif->io_ports[IDE_STATUS_OFFSET]) {
- if (!hwif_request_region(hwif, addr, 8))
- goto data_region_busy;
- hwif->straight8 = 1;
- return 0;
- }
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
- addr = hwif->io_ports[i];
- if (!hwif_request_region(hwif, addr, 1)) {
- while (--i)
- release_region(addr, 1);
- goto data_region_busy;
- }
- }
return 0;
-
-data_region_busy:
- addr = hwif->io_ports[IDE_CONTROL_OFFSET];
- if (addr)
- release_region(addr, 1);
-control_region_busy:
- /* If any errors are return, we drop the hwif interface. */
- return -EBUSY;
}
+EXPORT_SYMBOL_GPL(ide_device_get);
/**
- * ide_hwif_release_regions - free IDE resources
+ * ide_device_put - release a reference to a ide_drive_t
+ * @drive: device to release a reference on
*
- * Note that we only release the standard ports,
- * and do not even try to handle any extra ports
- * allocated for weird IDE interface chipsets.
- *
- * Note also that we don't yet handle mmio resources here. More
- * importantly our caller should be doing this so we need to
- * restructure this as a helper function for drivers.
+ * Release a reference to the ide_drive_t and decrements the use count of
+ * the underlying LLDD module.
*/
-
-void ide_hwif_release_regions(ide_hwif_t *hwif)
-{
- u32 i = 0;
-
- if (hwif->mmio)
- return;
- if (hwif->io_ports[IDE_CONTROL_OFFSET])
- release_region(hwif->io_ports[IDE_CONTROL_OFFSET], 1);
- if (hwif->straight8) {
- release_region(hwif->io_ports[IDE_DATA_OFFSET], 8);
- return;
- }
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++)
- if (hwif->io_ports[i])
- release_region(hwif->io_ports[i], 1);
-}
-
-void ide_remove_port_from_hwgroup(ide_hwif_t *hwif)
-{
- ide_hwgroup_t *hwgroup = hwif->hwgroup;
-
- spin_lock_irq(&ide_lock);
- /*
- * Remove us from the hwgroup, and free
- * the hwgroup if we were the only member
- */
- if (hwif->next == hwif) {
- BUG_ON(hwgroup->hwif != hwif);
- kfree(hwgroup);
- } else {
- /* There is another interface in hwgroup.
- * Unlink us, and set hwgroup->drive and ->hwif to
- * something sane.
- */
- ide_hwif_t *g = hwgroup->hwif;
-
- while (g->next != hwif)
- g = g->next;
- g->next = hwif->next;
- if (hwgroup->hwif == hwif) {
- /* Chose a random hwif for hwgroup->hwif.
- * It's guaranteed that there are no drives
- * left in the hwgroup.
- */
- BUG_ON(hwgroup->drive != NULL);
- hwgroup->hwif = g;
- }
- BUG_ON(hwgroup->hwif == hwif);
- }
- spin_unlock_irq(&ide_lock);
-}
-
-/* Called with ide_lock held. */
-static void __ide_port_unregister_devices(ide_hwif_t *hwif)
+void ide_device_put(ide_drive_t *drive)
{
- int i;
-
- for (i = 0; i < MAX_DRIVES; i++) {
- ide_drive_t *drive = &hwif->drives[i];
-
- if (drive->present) {
- spin_unlock_irq(&ide_lock);
- device_unregister(&drive->gendev);
- wait_for_completion(&drive->gendev_rel_comp);
- spin_lock_irq(&ide_lock);
- }
- }
-}
+#ifdef CONFIG_MODULE_UNLOAD
+ struct device *host_dev = drive->hwif->host->dev[0];
+ struct module *module = host_dev ? host_dev->driver->owner : NULL;
-void ide_port_unregister_devices(ide_hwif_t *hwif)
-{
- mutex_lock(&ide_cfg_mtx);
- spin_lock_irq(&ide_lock);
- __ide_port_unregister_devices(hwif);
- hwif->present = 0;
- ide_port_init_devices_data(hwif);
- spin_unlock_irq(&ide_lock);
- mutex_unlock(&ide_cfg_mtx);
+ if (module)
+ module_put(module);
+#endif
+ put_device(&drive->gendev);
}
-EXPORT_SYMBOL_GPL(ide_port_unregister_devices);
+EXPORT_SYMBOL_GPL(ide_device_put);
-/**
- * ide_unregister - free an IDE interface
- * @index: index of interface (will change soon to a pointer)
- *
- * Perform the final unregister of an IDE interface. At the moment
- * we don't refcount interfaces so this will also get split up.
- *
- * Locking:
- * The caller must not hold the IDE locks
- * The drive present/vanishing is not yet properly locked
- * Take care with the callbacks. These have been split to avoid
- * deadlocking the IDE layer. The shutdown callback is called
- * before we take the lock and free resources. It is up to the
- * caller to be sure there is no pending I/O here, and that
- * the interface will not be reopened (present/vanishing locking
- * isn't yet done BTW). After we commit to the final kill we
- * call the cleanup callback with the ide locks held.
- *
- * Unregister restores the hwif structures to the default state.
- * This is raving bonkers.
- */
-
-void ide_unregister(unsigned int index)
+static int ide_bus_match(struct device *dev, struct device_driver *drv)
{
- ide_hwif_t *hwif, *g;
- ide_hwgroup_t *hwgroup;
- int irq_count = 0;
-
- BUG_ON(index >= MAX_HWIFS);
-
- BUG_ON(in_interrupt());
- BUG_ON(irqs_disabled());
- mutex_lock(&ide_cfg_mtx);
- spin_lock_irq(&ide_lock);
- hwif = &ide_hwifs[index];
- if (!hwif->present)
- goto abort;
- __ide_port_unregister_devices(hwif);
- hwif->present = 0;
-
- spin_unlock_irq(&ide_lock);
-
- ide_proc_unregister_port(hwif);
-
- hwgroup = hwif->hwgroup;
- /*
- * free the irq if we were the only hwif using it
- */
- g = hwgroup->hwif;
- do {
- if (g->irq == hwif->irq)
- ++irq_count;
- g = g->next;
- } while (g != hwgroup->hwif);
- if (irq_count == 1)
- free_irq(hwif->irq, hwgroup);
-
- ide_remove_port_from_hwgroup(hwif);
-
- device_unregister(hwif->portdev);
- device_unregister(&hwif->gendev);
- wait_for_completion(&hwif->gendev_rel_comp);
-
- /*
- * Remove us from the kernel's knowledge
- */
- blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<<PARTN_BITS);
- kfree(hwif->sg_table);
- unregister_blkdev(hwif->major, hwif->name);
- spin_lock_irq(&ide_lock);
-
- if (hwif->dma_base)
- (void)ide_release_dma(hwif);
-
- ide_hwif_release_regions(hwif);
-
- /* restore hwif data to pristine status */
- ide_init_port_data(hwif, index);
-
-abort:
- spin_unlock_irq(&ide_lock);
- mutex_unlock(&ide_cfg_mtx);
+ return 1;
}
-EXPORT_SYMBOL(ide_unregister);
-
-void ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw)
+static int ide_uevent(struct device *dev, struct kobj_uevent_env *env)
{
- memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports));
- hwif->irq = hw->irq;
- hwif->noprobe = 0;
- hwif->chipset = hw->chipset;
- hwif->gendev.parent = hw->dev;
- hwif->ack_intr = hw->ack_intr;
-}
-EXPORT_SYMBOL_GPL(ide_init_port_hw);
-
-/*
- * Locks for IDE setting functionality
- */
-
-DEFINE_MUTEX(ide_setting_mtx);
-
-EXPORT_SYMBOL_GPL(ide_setting_mtx);
-
-/**
- * ide_spin_wait_hwgroup - wait for group
- * @drive: drive in the group
- *
- * Wait for an IDE device group to go non busy and then return
- * holding the ide_lock which guards the hwgroup->busy status
- * and right to use it.
- */
+ ide_drive_t *drive = to_ide_device(dev);
-int ide_spin_wait_hwgroup (ide_drive_t *drive)
-{
- ide_hwgroup_t *hwgroup = HWGROUP(drive);
- unsigned long timeout = jiffies + (3 * HZ);
-
- spin_lock_irq(&ide_lock);
-
- while (hwgroup->busy) {
- unsigned long lflags;
- spin_unlock_irq(&ide_lock);
- local_irq_set(lflags);
- if (time_after(jiffies, timeout)) {
- local_irq_restore(lflags);
- printk(KERN_ERR "%s: channel busy\n", drive->name);
- return -EBUSY;
- }
- local_irq_restore(lflags);
- spin_lock_irq(&ide_lock);
- }
+ add_uevent_var(env, "MEDIA=%s", ide_media_string(drive));
+ add_uevent_var(env, "DRIVENAME=%s", drive->name);
+ add_uevent_var(env, "MODALIAS=ide:m-%s", ide_media_string(drive));
return 0;
}
-EXPORT_SYMBOL(ide_spin_wait_hwgroup);
-
-int set_io_32bit(ide_drive_t *drive, int arg)
+static int generic_ide_probe(struct device *dev)
{
- if (drive->no_io_32bit)
- return -EPERM;
-
- if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1))
- return -EINVAL;
-
- if (ide_spin_wait_hwgroup(drive))
- return -EBUSY;
-
- drive->io_32bit = arg;
-
- spin_unlock_irq(&ide_lock);
+ ide_drive_t *drive = to_ide_device(dev);
+ struct ide_driver *drv = to_ide_driver(dev->driver);
- return 0;
+ return drv->probe ? drv->probe(drive) : -ENODEV;
}
-static int set_ksettings(ide_drive_t *drive, int arg)
+static int generic_ide_remove(struct device *dev)
{
- if (arg < 0 || arg > 1)
- return -EINVAL;
+ ide_drive_t *drive = to_ide_device(dev);
+ struct ide_driver *drv = to_ide_driver(dev->driver);
- if (ide_spin_wait_hwgroup(drive))
- return -EBUSY;
- drive->keep_settings = arg;
- spin_unlock_irq(&ide_lock);
+ if (drv->remove)
+ drv->remove(drive);
return 0;
}
-int set_using_dma(ide_drive_t *drive, int arg)
+static void generic_ide_shutdown(struct device *dev)
{
-#ifdef CONFIG_BLK_DEV_IDEDMA
- ide_hwif_t *hwif = drive->hwif;
- int err = -EPERM;
-
- if (arg < 0 || arg > 1)
- return -EINVAL;
-
- if (!drive->id || !(drive->id->capability & 1))
- goto out;
-
- if (hwif->dma_host_set == NULL)
- goto out;
-
- err = -EBUSY;
- if (ide_spin_wait_hwgroup(drive))
- goto out;
- /*
- * set ->busy flag, unlock and let it ride
- */
- hwif->hwgroup->busy = 1;
- spin_unlock_irq(&ide_lock);
-
- err = 0;
-
- if (arg) {
- if (ide_set_dma(drive))
- err = -EIO;
- } else
- ide_dma_off(drive);
-
- /*
- * lock, clear ->busy flag and unlock before leaving
- */
- spin_lock_irq(&ide_lock);
- hwif->hwgroup->busy = 0;
- spin_unlock_irq(&ide_lock);
-out:
- return err;
-#else
- if (arg < 0 || arg > 1)
- return -EINVAL;
+ ide_drive_t *drive = to_ide_device(dev);
+ struct ide_driver *drv = to_ide_driver(dev->driver);
- return -EPERM;
-#endif
+ if (dev->driver && drv->shutdown)
+ drv->shutdown(drive);
}
-int set_pio_mode(ide_drive_t *drive, int arg)
-{
- struct request rq;
+struct bus_type ide_bus_type = {
+ .name = "ide",
+ .match = ide_bus_match,
+ .uevent = ide_uevent,
+ .probe = generic_ide_probe,
+ .remove = generic_ide_remove,
+ .shutdown = generic_ide_shutdown,
+ .dev_attrs = ide_dev_attrs,
+ .suspend = generic_ide_suspend,
+ .resume = generic_ide_resume,
+};
- if (arg < 0 || arg > 255)
- return -EINVAL;
+EXPORT_SYMBOL_GPL(ide_bus_type);
- if (drive->hwif->set_pio_mode == NULL)
- return -ENOSYS;
+int ide_vlb_clk;
+EXPORT_SYMBOL_GPL(ide_vlb_clk);
- if (drive->special.b.set_tune)
- return -EBUSY;
+module_param_named(vlb_clock, ide_vlb_clk, int, 0);
+MODULE_PARM_DESC(vlb_clock, "VLB clock frequency (in MHz)");
- ide_init_drive_cmd(&rq);
- rq.cmd_type = REQ_TYPE_ATA_TASKFILE;
+int ide_pci_clk;
+EXPORT_SYMBOL_GPL(ide_pci_clk);
- drive->tune_req = (u8) arg;
- drive->special.b.set_tune = 1;
- (void) ide_do_drive_cmd(drive, &rq, ide_wait);
- return 0;
-}
+module_param_named(pci_clock, ide_pci_clk, int, 0);
+MODULE_PARM_DESC(pci_clock, "PCI bus clock frequency (in MHz)");
-static int set_unmaskirq(ide_drive_t *drive, int arg)
+static int ide_set_dev_param_mask(const char *s, struct kernel_param *kp)
{
- if (drive->no_unmask)
- return -EPERM;
+ int a, b, i, j = 1;
+ unsigned int *dev_param_mask = (unsigned int *)kp->arg;
- if (arg < 0 || arg > 1)
+ /* controller . device (0 or 1) [ : 1 (set) | 0 (clear) ] */
+ if (sscanf(s, "%d.%d:%d", &a, &b, &j) != 3 &&
+ sscanf(s, "%d.%d", &a, &b) != 2)
return -EINVAL;
- if (ide_spin_wait_hwgroup(drive))
- return -EBUSY;
- drive->unmask = arg;
- spin_unlock_irq(&ide_lock);
+ i = a * MAX_DRIVES + b;
- return 0;
-}
+ if (i >= MAX_HWIFS * MAX_DRIVES || j < 0 || j > 1)
+ return -EINVAL;
-/**
- * system_bus_clock - clock guess
- *
- * External version of the bus clock guess used by very old IDE drivers
- * for things like VLB timings. Should not be used.
- */
+ if (j)
+ *dev_param_mask |= (1 << i);
+ else
+ *dev_param_mask &= ~(1 << i);
-int system_bus_clock (void)
-{
- return system_bus_speed;
+ return 0;
}
-EXPORT_SYMBOL(system_bus_clock);
+static unsigned int ide_nodma;
-static int generic_ide_suspend(struct device *dev, pm_message_t mesg)
-{
- ide_drive_t *drive = dev->driver_data;
- ide_hwif_t *hwif = HWIF(drive);
- struct request rq;
- struct request_pm_state rqpm;
- ide_task_t args;
- int ret;
+module_param_call(nodma, ide_set_dev_param_mask, NULL, &ide_nodma, 0);
+MODULE_PARM_DESC(nodma, "disallow DMA for a device");
- /* Call ACPI _GTM only once */
- if (!(drive->dn % 2))
- ide_acpi_get_timing(hwif);
-
- memset(&rq, 0, sizeof(rq));
- memset(&rqpm, 0, sizeof(rqpm));
- memset(&args, 0, sizeof(args));
- rq.cmd_type = REQ_TYPE_PM_SUSPEND;
- rq.special = &args;
- rq.data = &rqpm;
- rqpm.pm_step = ide_pm_state_start_suspend;
- if (mesg.event == PM_EVENT_PRETHAW)
- mesg.event = PM_EVENT_FREEZE;
- rqpm.pm_state = mesg.event;
-
- ret = ide_do_drive_cmd(drive, &rq, ide_wait);
- /* only call ACPI _PS3 after both drivers are suspended */
- if (!ret && (((drive->dn % 2) && hwif->drives[0].present
- && hwif->drives[1].present)
- || !hwif->drives[0].present
- || !hwif->drives[1].present))
- ide_acpi_set_state(hwif, 0);
- return ret;
-}
+static unsigned int ide_noflush;
-static int generic_ide_resume(struct device *dev)
-{
- ide_drive_t *drive = dev->driver_data;
- ide_hwif_t *hwif = HWIF(drive);
- struct request rq;
- struct request_pm_state rqpm;
- ide_task_t args;
- int err;
-
- /* Call ACPI _STM only once */
- if (!(drive->dn % 2)) {
- ide_acpi_set_state(hwif, 1);
- ide_acpi_push_timing(hwif);
- }
+module_param_call(noflush, ide_set_dev_param_mask, NULL, &ide_noflush, 0);
+MODULE_PARM_DESC(noflush, "disable flush requests for a device");
- ide_acpi_exec_tfs(drive);
+static unsigned int ide_nohpa;
- memset(&rq, 0, sizeof(rq));
- memset(&rqpm, 0, sizeof(rqpm));
- memset(&args, 0, sizeof(args));
- rq.cmd_type = REQ_TYPE_PM_RESUME;
- rq.special = &args;
- rq.data = &rqpm;
- rqpm.pm_step = ide_pm_state_start_resume;
- rqpm.pm_state = PM_EVENT_ON;
+module_param_call(nohpa, ide_set_dev_param_mask, NULL, &ide_nohpa, 0);
+MODULE_PARM_DESC(nohpa, "disable Host Protected Area for a device");
- err = ide_do_drive_cmd(drive, &rq, ide_head_wait);
+static unsigned int ide_noprobe;
- if (err == 0 && dev->driver) {
- ide_driver_t *drv = to_ide_driver(dev->driver);
+module_param_call(noprobe, ide_set_dev_param_mask, NULL, &ide_noprobe, 0);
+MODULE_PARM_DESC(noprobe, "skip probing for a device");
- if (drv->resume)
- drv->resume(drive);
- }
+static unsigned int ide_nowerr;
- return err;
-}
+module_param_call(nowerr, ide_set_dev_param_mask, NULL, &ide_nowerr, 0);
+MODULE_PARM_DESC(nowerr, "ignore the ATA_DF bit for a device");
-int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device *bdev,
- unsigned int cmd, unsigned long arg)
-{
- unsigned long flags;
- ide_driver_t *drv;
- void __user *p = (void __user *)arg;
- int err = 0, (*setfunc)(ide_drive_t *, int);
- u8 *val;
-
- switch (cmd) {
- case HDIO_GET_32BIT: val = &drive->io_32bit; goto read_val;
- case HDIO_GET_KEEPSETTINGS: val = &drive->keep_settings; goto read_val;
- case HDIO_GET_UNMASKINTR: val = &drive->unmask; goto read_val;
- case HDIO_GET_DMA: val = &drive->using_dma; goto read_val;
- case HDIO_SET_32BIT: setfunc = set_io_32bit; goto set_val;
- case HDIO_SET_KEEPSETTINGS: setfunc = set_ksettings; goto set_val;
- case HDIO_SET_PIO_MODE: setfunc = set_pio_mode; goto set_val;
- case HDIO_SET_UNMASKINTR: setfunc = set_unmaskirq; goto set_val;
- case HDIO_SET_DMA: setfunc = set_using_dma; goto set_val;
- }
+static unsigned int ide_cdroms;
- switch (cmd) {
- case HDIO_OBSOLETE_IDENTITY:
- case HDIO_GET_IDENTITY:
- if (bdev != bdev->bd_contains)
- return -EINVAL;
- if (drive->id_read == 0)
- return -ENOMSG;
- if (copy_to_user(p, drive->id, (cmd == HDIO_GET_IDENTITY) ? sizeof(*drive->id) : 142))
- return -EFAULT;
- return 0;
-
- case HDIO_GET_NICE:
- return put_user(drive->dsc_overlap << IDE_NICE_DSC_OVERLAP |
- drive->atapi_overlap << IDE_NICE_ATAPI_OVERLAP |
- drive->nice1 << IDE_NICE_1,
- (long __user *) arg);
-#ifdef CONFIG_IDE_TASK_IOCTL
- case HDIO_DRIVE_TASKFILE:
- if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
- return -EACCES;
- switch(drive->media) {
- case ide_disk:
- return ide_taskfile_ioctl(drive, cmd, arg);
- default:
- return -ENOMSG;
- }
-#endif /* CONFIG_IDE_TASK_IOCTL */
-
- case HDIO_DRIVE_CMD:
- if (!capable(CAP_SYS_RAWIO))
- return -EACCES;
- return ide_cmd_ioctl(drive, cmd, arg);
-
- case HDIO_DRIVE_TASK:
- if (!capable(CAP_SYS_RAWIO))
- return -EACCES;
- return ide_task_ioctl(drive, cmd, arg);
- case HDIO_SET_NICE:
- if (!capable(CAP_SYS_ADMIN)) return -EACCES;
- if (arg != (arg & ((1 << IDE_NICE_DSC_OVERLAP) | (1 << IDE_NICE_1))))
- return -EPERM;
- drive->dsc_overlap = (arg >> IDE_NICE_DSC_OVERLAP) & 1;
- drv = *(ide_driver_t **)bdev->bd_disk->private_data;
- if (drive->dsc_overlap && !drv->supports_dsc_overlap) {
- drive->dsc_overlap = 0;
- return -EPERM;
- }
- drive->nice1 = (arg >> IDE_NICE_1) & 1;
- return 0;
- case HDIO_DRIVE_RESET:
- if (!capable(CAP_SYS_ADMIN))
- return -EACCES;
-
- /*
- * Abort the current command on the
- * group if there is one, taking
- * care not to allow anything else
- * to be queued and to die on the
- * spot if we miss one somehow
- */
-
- spin_lock_irqsave(&ide_lock, flags);
-
- if (HWGROUP(drive)->resetting) {
- spin_unlock_irqrestore(&ide_lock, flags);
- return -EBUSY;
- }
-
- ide_abort(drive, "drive reset");
-
- BUG_ON(HWGROUP(drive)->handler);
-
- /* Ensure nothing gets queued after we
- drop the lock. Reset will clear the busy */
-
- HWGROUP(drive)->busy = 1;
- spin_unlock_irqrestore(&ide_lock, flags);
- (void) ide_do_reset(drive);
-
- return 0;
- case HDIO_GET_BUSSTATE:
- if (!capable(CAP_SYS_ADMIN))
- return -EACCES;
- if (put_user(HWIF(drive)->bus_state, (long __user *)arg))
- return -EFAULT;
- return 0;
-
- case HDIO_SET_BUSSTATE:
- if (!capable(CAP_SYS_ADMIN))
- return -EACCES;
- return -EOPNOTSUPP;
- default:
- return -EINVAL;
- }
+module_param_call(cdrom, ide_set_dev_param_mask, NULL, &ide_cdroms, 0);
+MODULE_PARM_DESC(cdrom, "force device as a CD-ROM");
-read_val:
- mutex_lock(&ide_setting_mtx);
- spin_lock_irqsave(&ide_lock, flags);
- err = *val;
- spin_unlock_irqrestore(&ide_lock, flags);
- mutex_unlock(&ide_setting_mtx);
- return err >= 0 ? put_user(err, (long __user *)arg) : err;
-
-set_val:
- if (bdev != bdev->bd_contains)
- err = -EINVAL;
- else {
- if (!capable(CAP_SYS_ADMIN))
- err = -EACCES;
- else {
- mutex_lock(&ide_setting_mtx);
- err = setfunc(drive, arg);
- mutex_unlock(&ide_setting_mtx);
- }
- }
- return err;
-}
+struct chs_geom {
+ unsigned int cyl;
+ u8 head;
+ u8 sect;
+};
-EXPORT_SYMBOL(generic_ide_ioctl);
+static unsigned int ide_disks;
+static struct chs_geom ide_disks_chs[MAX_HWIFS * MAX_DRIVES];
-/*
- * stridx() returns the offset of c within s,
- * or -1 if c is '\0' or not found within s.
- */
-static int __init stridx (const char *s, char c)
-{
- char *i = strchr(s, c);
- return (i && c) ? i - s : -1;
-}
-
-/*
- * match_parm() does parsing for ide_setup():
- *
- * 1. the first char of s must be '='.
- * 2. if the remainder matches one of the supplied keywords,
- * the index (1 based) of the keyword is negated and returned.
- * 3. if the remainder is a series of no more than max_vals numbers
- * separated by commas, the numbers are saved in vals[] and a
- * count of how many were saved is returned. Base10 is assumed,
- * and base16 is allowed when prefixed with "0x".
- * 4. otherwise, zero is returned.
- */
-static int __init match_parm (char *s, const char *keywords[], int vals[], int max_vals)
+static int ide_set_disk_chs(const char *str, struct kernel_param *kp)
{
- static const char *decimal = "0123456789";
- static const char *hex = "0123456789abcdef";
- int i, n;
-
- if (*s++ == '=') {
- /*
- * Try matching against the supplied keywords,
- * and return -(index+1) if we match one
- */
- if (keywords != NULL) {
- for (i = 0; *keywords != NULL; ++i) {
- if (!strcmp(s, *keywords++))
- return -(i+1);
- }
- }
- /*
- * Look for a series of no more than "max_vals"
- * numeric values separated by commas, in base10,
- * or base16 when prefixed with "0x".
- * Return a count of how many were found.
- */
- for (n = 0; (i = stridx(decimal, *s)) >= 0;) {
- vals[n] = i;
- while ((i = stridx(decimal, *++s)) >= 0)
- vals[n] = (vals[n] * 10) + i;
- if (*s == 'x' && !vals[n]) {
- while ((i = stridx(hex, *++s)) >= 0)
- vals[n] = (vals[n] * 0x10) + i;
- }
- if (++n == max_vals)
- break;
- if (*s == ',' || *s == ';')
- ++s;
- }
- if (!*s)
- return n;
- }
- return 0; /* zero = nothing matched */
-}
+ int a, b, c = 0, h = 0, s = 0, i, j = 1;
-extern int probe_ali14xx;
-extern int probe_umc8672;
-extern int probe_dtc2278;
-extern int probe_ht6560b;
-extern int probe_qd65xx;
-extern int cmd640_vlb;
+ /* controller . device (0 or 1) : Cylinders , Heads , Sectors */
+ /* controller . device (0 or 1) : 1 (use CHS) | 0 (ignore CHS) */
+ if (sscanf(str, "%d.%d:%d,%d,%d", &a, &b, &c, &h, &s) != 5 &&
+ sscanf(str, "%d.%d:%d", &a, &b, &j) != 3)
+ return -EINVAL;
-static int __initdata is_chipset_set;
+ i = a * MAX_DRIVES + b;
-/*
- * ide_setup() gets called VERY EARLY during initialization,
- * to handle kernel "command line" strings beginning with "hdx=" or "ide".
- *
- * Remember to update Documentation/ide/ide.txt if you change something here.
- */
-static int __init ide_setup(char *s)
-{
- int i, vals[3];
- ide_hwif_t *hwif;
- ide_drive_t *drive;
- unsigned int hw, unit;
- const char max_drive = 'a' + ((MAX_HWIFS * MAX_DRIVES) - 1);
- const char max_hwif = '0' + (MAX_HWIFS - 1);
+ if (i >= MAX_HWIFS * MAX_DRIVES || j < 0 || j > 1)
+ return -EINVAL;
-
- if (strncmp(s,"hd",2) == 0 && s[2] == '=') /* hd= is for hd.c */
- return 0; /* driver and not us */
+ if (c > INT_MAX || h > 255 || s > 255)
+ return -EINVAL;
- if (strncmp(s,"ide",3) && strncmp(s,"idebus",6) && strncmp(s,"hd",2))
- return 0;
+ if (j)
+ ide_disks |= (1 << i);
+ else
+ ide_disks &= ~(1 << i);
- printk(KERN_INFO "ide_setup: %s", s);
- init_ide_data ();
+ ide_disks_chs[i].cyl = c;
+ ide_disks_chs[i].head = h;
+ ide_disks_chs[i].sect = s;
-#ifdef CONFIG_BLK_DEV_IDEDOUBLER
- if (!strcmp(s, "ide=doubler")) {
- extern int ide_doubler;
+ return 0;
+}
- printk(" : Enabled support for IDE doublers\n");
- ide_doubler = 1;
- return 1;
- }
-#endif /* CONFIG_BLK_DEV_IDEDOUBLER */
+module_param_call(chs, ide_set_disk_chs, NULL, NULL, 0);
+MODULE_PARM_DESC(chs, "force device as a disk (using CHS)");
- if (!strcmp(s, "ide=nodma")) {
- printk(" : Prevented DMA\n");
- noautodma = 1;
- goto obsolete_option;
- }
+static void ide_dev_apply_params(ide_drive_t *drive, u8 unit)
+{
+ int i = drive->hwif->index * MAX_DRIVES + unit;
-#ifdef CONFIG_BLK_DEV_IDEACPI
- if (!strcmp(s, "ide=noacpi")) {
- //printk(" : Disable IDE ACPI support.\n");
- ide_noacpi = 1;
- return 1;
+ if (ide_nodma & (1 << i)) {
+ printk(KERN_INFO "ide: disallowing DMA for %s\n", drive->name);
+ drive->dev_flags |= IDE_DFLAG_NODMA;
}
- if (!strcmp(s, "ide=acpigtf")) {
- //printk(" : Enable IDE ACPI _GTF support.\n");
- ide_noacpitfs = 0;
- return 1;
+ if (ide_noflush & (1 << i)) {
+ printk(KERN_INFO "ide: disabling flush requests for %s\n",
+ drive->name);
+ drive->dev_flags |= IDE_DFLAG_NOFLUSH;
}
- if (!strcmp(s, "ide=acpionboot")) {
- //printk(" : Call IDE ACPI methods on boot.\n");
- ide_noacpionboot = 0;
- return 1;
+ if (ide_nohpa & (1 << i)) {
+ printk(KERN_INFO "ide: disabling Host Protected Area for %s\n",
+ drive->name);
+ drive->dev_flags |= IDE_DFLAG_NOHPA;
}
-#endif /* CONFIG_BLK_DEV_IDEACPI */
-
- /*
- * Look for drive options: "hdx="
- */
- if (s[0] == 'h' && s[1] == 'd' && s[2] >= 'a' && s[2] <= max_drive) {
- const char *hd_words[] = {
- "none", "noprobe", "nowerr", "cdrom", "nodma",
- "autotune", "noautotune", "-8", "-9", "-10",
- "noflush", "remap", "remap63", "scsi", NULL };
- unit = s[2] - 'a';
- hw = unit / MAX_DRIVES;
- unit = unit % MAX_DRIVES;
- hwif = &ide_hwifs[hw];
- drive = &hwif->drives[unit];
- if (strncmp(s + 4, "ide-", 4) == 0) {
- strlcpy(drive->driver_req, s + 4, sizeof(drive->driver_req));
- goto obsolete_option;
- }
- switch (match_parm(&s[3], hd_words, vals, 3)) {
- case -1: /* "none" */
- case -2: /* "noprobe" */
- drive->noprobe = 1;
- goto done;
- case -3: /* "nowerr" */
- drive->bad_wstat = BAD_R_STAT;
- hwif->noprobe = 0;
- goto done;
- case -4: /* "cdrom" */
- drive->present = 1;
- drive->media = ide_cdrom;
- /* an ATAPI device ignores DRDY */
- drive->ready_stat = 0;
- hwif->noprobe = 0;
- goto done;
- case -5: /* nodma */
- drive->nodma = 1;
- goto done;
- case -6: /* "autotune" */
- drive->autotune = IDE_TUNE_AUTO;
- goto obsolete_option;
- case -7: /* "noautotune" */
- drive->autotune = IDE_TUNE_NOAUTO;
- goto obsolete_option;
- case -11: /* noflush */
- drive->noflush = 1;
- goto done;
- case -12: /* "remap" */
- drive->remap_0_to_1 = 1;
- goto obsolete_option;
- case -13: /* "remap63" */
- drive->sect0 = 63;
- goto obsolete_option;
- case -14: /* "scsi" */
- drive->scsi = 1;
- goto obsolete_option;
- case 3: /* cyl,head,sect */
- drive->media = ide_disk;
- drive->ready_stat = READY_STAT;
- drive->cyl = drive->bios_cyl = vals[0];
- drive->head = drive->bios_head = vals[1];
- drive->sect = drive->bios_sect = vals[2];
- drive->present = 1;
- drive->forced_geom = 1;
- hwif->noprobe = 0;
- goto done;
- default:
- goto bad_option;
- }
+ if (ide_noprobe & (1 << i)) {
+ printk(KERN_INFO "ide: skipping probe for %s\n", drive->name);
+ drive->dev_flags |= IDE_DFLAG_NOPROBE;
}
-
- if (s[0] != 'i' || s[1] != 'd' || s[2] != 'e')
- goto bad_option;
- /*
- * Look for bus speed option: "idebus="
- */
- if (s[3] == 'b' && s[4] == 'u' && s[5] == 's') {
- if (match_parm(&s[6], NULL, vals, 1) != 1)
- goto bad_option;
- if (vals[0] >= 20 && vals[0] <= 66) {
- idebus_parameter = vals[0];
- } else
- printk(" -- BAD BUS SPEED! Expected value from 20 to 66");
- goto done;
+ if (ide_nowerr & (1 << i)) {
+ printk(KERN_INFO "ide: ignoring the ATA_DF bit for %s\n",
+ drive->name);
+ drive->bad_wstat = BAD_R_STAT;
}
- /*
- * Look for interface options: "idex="
- */
- if (s[3] >= '0' && s[3] <= max_hwif) {
- /*
- * Be VERY CAREFUL changing this: note hardcoded indexes below
- * (-8, -9, -10) are reserved to ease the hardcoding.
- */
- static const char *ide_words[] = {
- "noprobe", "serialize", "minus3", "minus4",
- "reset", "minus6", "ata66", "minus8", "minus9",
- "minus10", "four", "qd65xx", "ht6560b", "cmd640_vlb",
- "dtc2278", "umc8672", "ali14xx", NULL };
-
- hw = s[3] - '0';
- hwif = &ide_hwifs[hw];
- i = match_parm(&s[4], ide_words, vals, 3);
-
- /*
- * Cryptic check to ensure chipset not already set for hwif.
- * Note: we can't depend on hwif->chipset here.
- */
- if (i >= -18 && i <= -11) {
- /* chipset already specified */
- if (is_chipset_set)
- goto bad_option;
- /* these drivers are for "ide0=" only */
- if (hw != 0)
- goto bad_hwif;
- is_chipset_set = 1;
- printk("\n");
- }
-
- switch (i) {
-#ifdef CONFIG_BLK_DEV_ALI14XX
- case -17: /* "ali14xx" */
- probe_ali14xx = 1;
- goto obsolete_option;
-#endif
-#ifdef CONFIG_BLK_DEV_UMC8672
- case -16: /* "umc8672" */
- probe_umc8672 = 1;
- goto obsolete_option;
-#endif
-#ifdef CONFIG_BLK_DEV_DTC2278
- case -15: /* "dtc2278" */
- probe_dtc2278 = 1;
- goto obsolete_option;
-#endif
-#ifdef CONFIG_BLK_DEV_CMD640
- case -14: /* "cmd640_vlb" */
- cmd640_vlb = 1;
- goto obsolete_option;
-#endif
-#ifdef CONFIG_BLK_DEV_HT6560B
- case -13: /* "ht6560b" */
- probe_ht6560b = 1;
- goto obsolete_option;
-#endif
-#ifdef CONFIG_BLK_DEV_QD65XX
- case -12: /* "qd65xx" */
- probe_qd65xx = 1;
- goto obsolete_option;
-#endif
-#ifdef CONFIG_BLK_DEV_4DRIVES
- case -11: /* "four" drives on one set of ports */
- {
- ide_hwif_t *mate = &ide_hwifs[hw^1];
- mate->drives[0].select.all ^= 0x20;
- mate->drives[1].select.all ^= 0x20;
- hwif->chipset = mate->chipset = ide_4drives;
- mate->irq = hwif->irq;
- memcpy(mate->io_ports, hwif->io_ports, sizeof(hwif->io_ports));
- hwif->mate = mate;
- mate->mate = hwif;
- hwif->serialized = mate->serialized = 1;
- goto obsolete_option;
- }
-#endif /* CONFIG_BLK_DEV_4DRIVES */
- case -10: /* minus10 */
- case -9: /* minus9 */
- case -8: /* minus8 */
- case -6:
- case -4:
- case -3:
- goto bad_option;
- case -7: /* ata66 */
-#ifdef CONFIG_BLK_DEV_IDEPCI
- /*
- * Use ATA_CBL_PATA40_SHORT so drive side
- * cable detection is also overriden.
- */
- hwif->cbl = ATA_CBL_PATA40_SHORT;
- goto obsolete_option;
-#else
- goto bad_hwif;
-#endif
- case -5: /* "reset" */
- hwif->reset = 1;
- goto obsolete_option;
- case -2: /* "serialize" */
- hwif->mate = &ide_hwifs[hw^1];
- hwif->mate->mate = hwif;
- hwif->serialized = hwif->mate->serialized = 1;
- goto obsolete_option;
-
- case -1: /* "noprobe" */
- hwif->noprobe = 1;
- goto obsolete_option;
- case 0:
- case 1:
- case 2:
- case 3:
- goto bad_option;
- default:
- printk(" -- SUPPORT NOT CONFIGURED IN THIS KERNEL\n");
- return 1;
- }
+ if (ide_cdroms & (1 << i)) {
+ printk(KERN_INFO "ide: forcing %s as a CD-ROM\n", drive->name);
+ drive->dev_flags |= IDE_DFLAG_PRESENT;
+ drive->media = ide_cdrom;
+ /* an ATAPI device ignores DRDY */
+ drive->ready_stat = 0;
}
-bad_option:
- printk(" -- BAD OPTION\n");
- return 1;
-obsolete_option:
- printk(" -- OBSOLETE OPTION, WILL BE REMOVED SOON!\n");
- return 1;
-bad_hwif:
- printk("-- NOT SUPPORTED ON ide%d", hw);
-done:
- printk("\n");
- return 1;
-}
-
-EXPORT_SYMBOL(ide_lock);
-
-static int ide_bus_match(struct device *dev, struct device_driver *drv)
-{
- return 1;
-}
-
-static char *media_string(ide_drive_t *drive)
-{
- switch (drive->media) {
- case ide_disk:
- return "disk";
- case ide_cdrom:
- return "cdrom";
- case ide_tape:
- return "tape";
- case ide_floppy:
- return "floppy";
- case ide_optical:
- return "optical";
- default:
- return "UNKNOWN";
+ if (ide_disks & (1 << i)) {
+ drive->cyl = drive->bios_cyl = ide_disks_chs[i].cyl;
+ drive->head = drive->bios_head = ide_disks_chs[i].head;
+ drive->sect = drive->bios_sect = ide_disks_chs[i].sect;
+
+ printk(KERN_INFO "ide: forcing %s as a disk (%d/%d/%d)\n",
+ drive->name,
+ drive->cyl, drive->head, drive->sect);
+
+ drive->dev_flags |= IDE_DFLAG_FORCED_GEOM | IDE_DFLAG_PRESENT;
+ drive->media = ide_disk;
+ drive->ready_stat = ATA_DRDY;
}
}
-static ssize_t media_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- ide_drive_t *drive = to_ide_device(dev);
- return sprintf(buf, "%s\n", media_string(drive));
-}
-
-static ssize_t drivename_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- ide_drive_t *drive = to_ide_device(dev);
- return sprintf(buf, "%s\n", drive->name);
-}
-
-static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- ide_drive_t *drive = to_ide_device(dev);
- return sprintf(buf, "ide:m-%s\n", media_string(drive));
-}
-
-static ssize_t model_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- ide_drive_t *drive = to_ide_device(dev);
- return sprintf(buf, "%s\n", drive->id->model);
-}
+static unsigned int ide_ignore_cable;
-static ssize_t firmware_show(struct device *dev, struct device_attribute *attr,
- char *buf)
+static int ide_set_ignore_cable(const char *s, struct kernel_param *kp)
{
- ide_drive_t *drive = to_ide_device(dev);
- return sprintf(buf, "%s\n", drive->id->fw_rev);
-}
+ int i, j = 1;
-static ssize_t serial_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- ide_drive_t *drive = to_ide_device(dev);
- return sprintf(buf, "%s\n", drive->id->serial_no);
-}
+ /* controller (ignore) */
+ /* controller : 1 (ignore) | 0 (use) */
+ if (sscanf(s, "%d:%d", &i, &j) != 2 && sscanf(s, "%d", &i) != 1)
+ return -EINVAL;
-static struct device_attribute ide_dev_attrs[] = {
- __ATTR_RO(media),
- __ATTR_RO(drivename),
- __ATTR_RO(modalias),
- __ATTR_RO(model),
- __ATTR_RO(firmware),
- __ATTR(serial, 0400, serial_show, NULL),
- __ATTR_NULL
-};
+ if (i >= MAX_HWIFS || j < 0 || j > 1)
+ return -EINVAL;
-static int ide_uevent(struct device *dev, struct kobj_uevent_env *env)
-{
- ide_drive_t *drive = to_ide_device(dev);
+ if (j)
+ ide_ignore_cable |= (1 << i);
+ else
+ ide_ignore_cable &= ~(1 << i);
- add_uevent_var(env, "MEDIA=%s", media_string(drive));
- add_uevent_var(env, "DRIVENAME=%s", drive->name);
- add_uevent_var(env, "MODALIAS=ide:m-%s", media_string(drive));
return 0;
}
-static int generic_ide_probe(struct device *dev)
-{
- ide_drive_t *drive = to_ide_device(dev);
- ide_driver_t *drv = to_ide_driver(dev->driver);
-
- return drv->probe ? drv->probe(drive) : -ENODEV;
-}
-
-static int generic_ide_remove(struct device *dev)
-{
- ide_drive_t *drive = to_ide_device(dev);
- ide_driver_t *drv = to_ide_driver(dev->driver);
+module_param_call(ignore_cable, ide_set_ignore_cable, NULL, NULL, 0);
+MODULE_PARM_DESC(ignore_cable, "ignore cable detection");
- if (drv->remove)
- drv->remove(drive);
-
- return 0;
-}
-
-static void generic_ide_shutdown(struct device *dev)
+void ide_port_apply_params(ide_hwif_t *hwif)
{
- ide_drive_t *drive = to_ide_device(dev);
- ide_driver_t *drv = to_ide_driver(dev->driver);
-
- if (dev->driver && drv->shutdown)
- drv->shutdown(drive);
-}
-
-struct bus_type ide_bus_type = {
- .name = "ide",
- .match = ide_bus_match,
- .uevent = ide_uevent,
- .probe = generic_ide_probe,
- .remove = generic_ide_remove,
- .shutdown = generic_ide_shutdown,
- .dev_attrs = ide_dev_attrs,
- .suspend = generic_ide_suspend,
- .resume = generic_ide_resume,
-};
-
-EXPORT_SYMBOL_GPL(ide_bus_type);
+ ide_drive_t *drive;
+ int i;
-static void ide_port_class_release(struct device *portdev)
-{
- ide_hwif_t *hwif = dev_get_drvdata(portdev);
+ if (ide_ignore_cable & (1 << hwif->index)) {
+ printk(KERN_INFO "ide: ignoring cable detection for %s\n",
+ hwif->name);
+ hwif->cbl = ATA_CBL_PATA40_SHORT;
+ }
- put_device(&hwif->gendev);
+ ide_port_for_each_dev(i, drive, hwif)
+ ide_dev_apply_params(drive, i);
}
/*
int ret;
printk(KERN_INFO "Uniform Multi-Platform E-IDE driver\n");
- system_bus_speed = ide_system_bus_speed();
-
- printk(KERN_INFO "ide: Assuming %dMHz system bus speed "
- "for PIO modes%s\n", system_bus_speed,
- idebus_parameter ? "" : "; override with idebus=xx");
ret = bus_register(&ide_bus_type);
if (ret < 0) {
ret = PTR_ERR(ide_port_class);
goto out_port_class;
}
- ide_port_class->dev_release = ide_port_class_release;
- init_ide_data();
+ ide_acpi_init();
proc_ide_create();
return ret;
}
-#ifdef MODULE
-static char *options = NULL;
-module_param(options, charp, 0);
-MODULE_LICENSE("GPL");
-
-static void __init parse_options (char *line)
-{
- char *next = line;
-
- if (line == NULL || !*line)
- return;
- while ((line = next) != NULL) {
- if ((next = strchr(line,' ')) != NULL)
- *next++ = 0;
- if (!ide_setup(line))
- printk (KERN_INFO "Unknown option '%s'\n", line);
- }
-}
-
-int __init init_module (void)
+static void __exit ide_exit(void)
{
- parse_options(options);
- return ide_init();
-}
-
-void __exit cleanup_module (void)
-{
- int index;
-
- for (index = 0; index < MAX_HWIFS; ++index)
- ide_unregister(index);
-
proc_ide_destroy();
class_destroy(ide_port_class);
bus_unregister(&ide_bus_type);
}
-#else /* !MODULE */
-
-__setup("", ide_setup);
-
module_init(ide_init);
+module_exit(ide_exit);
-#endif /* MODULE */
+MODULE_LICENSE("GPL");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff