diff options
Diffstat (limited to 'drivers/ide/ide-probe.c')
| -rw-r--r-- | drivers/ide/ide-probe.c | 1623 |
1 files changed, 0 insertions, 1623 deletions
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c deleted file mode 100644 index aefd74c0d862..000000000000 --- a/drivers/ide/ide-probe.c +++ /dev/null @@ -1,1623 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1994-1998 Linus Torvalds & authors (see below) - * Copyright (C) 2005, 2007 Bartlomiej Zolnierkiewicz - */ - -/* - * Mostly written by Mark Lord <mlord@pobox.com> - * and Gadi Oxman <gadio@netvision.net.il> - * and Andre Hedrick <andre@linux-ide.org> - * - * See linux/MAINTAINERS for address of current maintainer. - * - * This is the IDE probe module, as evolved from hd.c and ide.c. - * - * -- increase WAIT_PIDENTIFY to avoid CD-ROM locking at boot - * by Andrea Arcangeli - */ - -#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/slab.h> -#include <linux/delay.h> -#include <linux/ide.h> -#include <linux/spinlock.h> -#include <linux/kmod.h> -#include <linux/pci.h> -#include <linux/scatterlist.h> - -#include <asm/byteorder.h> -#include <asm/irq.h> -#include <linux/uaccess.h> -#include <asm/io.h> - -/** - * generic_id - add a generic drive id - * @drive: drive to make an ID block for - * - * Add a fake id field to the drive we are passed. This allows - * use to skip a ton of NULL checks (which people always miss) - * and make drive properties unconditional outside of this file - */ - -static void generic_id(ide_drive_t *drive) -{ - u16 *id = drive->id; - - id[ATA_ID_CUR_CYLS] = id[ATA_ID_CYLS] = drive->cyl; - id[ATA_ID_CUR_HEADS] = id[ATA_ID_HEADS] = drive->head; - id[ATA_ID_CUR_SECTORS] = id[ATA_ID_SECTORS] = drive->sect; -} - -static void ide_disk_init_chs(ide_drive_t *drive) -{ - u16 *id = drive->id; - - /* Extract geometry if we did not already have one for the drive */ - if (!drive->cyl || !drive->head || !drive->sect) { - drive->cyl = drive->bios_cyl = id[ATA_ID_CYLS]; - drive->head = drive->bios_head = id[ATA_ID_HEADS]; - drive->sect = drive->bios_sect = id[ATA_ID_SECTORS]; - } - - /* Handle logical geometry translation by the drive */ - if (ata_id_current_chs_valid(id)) { - drive->cyl = id[ATA_ID_CUR_CYLS]; - drive->head = id[ATA_ID_CUR_HEADS]; - drive->sect = id[ATA_ID_CUR_SECTORS]; - } - - /* Use physical geometry if what we have still makes no sense */ - if (drive->head > 16 && id[ATA_ID_HEADS] && id[ATA_ID_HEADS] <= 16) { - drive->cyl = id[ATA_ID_CYLS]; - drive->head = id[ATA_ID_HEADS]; - drive->sect = id[ATA_ID_SECTORS]; - } -} - -static void ide_disk_init_mult_count(ide_drive_t *drive) -{ - u16 *id = drive->id; - u8 max_multsect = id[ATA_ID_MAX_MULTSECT] & 0xff; - - if (max_multsect) { - if ((max_multsect / 2) > 1) - id[ATA_ID_MULTSECT] = max_multsect | 0x100; - else - id[ATA_ID_MULTSECT] &= ~0x1ff; - - drive->mult_req = id[ATA_ID_MULTSECT] & 0xff; - - if (drive->mult_req) - drive->special_flags |= IDE_SFLAG_SET_MULTMODE; - } -} - -static void ide_classify_ata_dev(ide_drive_t *drive) -{ - u16 *id = drive->id; - char *m = (char *)&id[ATA_ID_PROD]; - int is_cfa = ata_id_is_cfa(id); - - /* CF devices are *not* removable in Linux definition of the term */ - if (is_cfa == 0 && (id[ATA_ID_CONFIG] & (1 << 7))) - drive->dev_flags |= IDE_DFLAG_REMOVABLE; - - drive->media = ide_disk; - - if (!ata_id_has_unload(drive->id)) - drive->dev_flags |= IDE_DFLAG_NO_UNLOAD; - - printk(KERN_INFO "%s: %s, %s DISK drive\n", drive->name, m, - is_cfa ? "CFA" : "ATA"); -} - -static void ide_classify_atapi_dev(ide_drive_t *drive) -{ - u16 *id = drive->id; - char *m = (char *)&id[ATA_ID_PROD]; - u8 type = (id[ATA_ID_CONFIG] >> 8) & 0x1f; - - printk(KERN_INFO "%s: %s, ATAPI ", drive->name, m); - switch (type) { - case ide_floppy: - if (!strstr(m, "CD-ROM")) { - if (!strstr(m, "oppy") && - !strstr(m, "poyp") && - !strstr(m, "ZIP")) - printk(KERN_CONT "cdrom or floppy?, assuming "); - if (drive->media != ide_cdrom) { - printk(KERN_CONT "FLOPPY"); - drive->dev_flags |= IDE_DFLAG_REMOVABLE; - break; - } - } - /* Early cdrom models used zero */ - type = ide_cdrom; - fallthrough; - case ide_cdrom: - drive->dev_flags |= IDE_DFLAG_REMOVABLE; -#ifdef CONFIG_PPC - /* kludge for Apple PowerBook internal zip */ - if (!strstr(m, "CD-ROM") && strstr(m, "ZIP")) { - printk(KERN_CONT "FLOPPY"); - type = ide_floppy; - break; - } -#endif - printk(KERN_CONT "CD/DVD-ROM"); - break; - case ide_tape: - printk(KERN_CONT "TAPE"); - break; - case ide_optical: - printk(KERN_CONT "OPTICAL"); - drive->dev_flags |= IDE_DFLAG_REMOVABLE; - break; - default: - printk(KERN_CONT "UNKNOWN (type %d)", type); - break; - } - - printk(KERN_CONT " drive\n"); - drive->media = type; - /* an ATAPI device ignores DRDY */ - drive->ready_stat = 0; - if (ata_id_cdb_intr(id)) - drive->atapi_flags |= IDE_AFLAG_DRQ_INTERRUPT; - drive->dev_flags |= IDE_DFLAG_DOORLOCKING; - /* we don't do head unloading on ATAPI devices */ - drive->dev_flags |= IDE_DFLAG_NO_UNLOAD; -} - -/** - * do_identify - identify a drive - * @drive: drive to identify - * @cmd: command used - * @id: buffer for IDENTIFY data - * - * Called when we have issued a drive identify command to - * read and parse the results. This function is run with - * interrupts disabled. - */ - -static void do_identify(ide_drive_t *drive, u8 cmd, u16 *id) -{ - ide_hwif_t *hwif = drive->hwif; - char *m = (char *)&id[ATA_ID_PROD]; - unsigned long flags; - int bswap = 1; - - /* local CPU only; some systems need this */ - local_irq_save(flags); - /* read 512 bytes of id info */ - hwif->tp_ops->input_data(drive, NULL, id, SECTOR_SIZE); - local_irq_restore(flags); - - drive->dev_flags |= IDE_DFLAG_ID_READ; -#ifdef DEBUG - printk(KERN_INFO "%s: dumping identify data\n", drive->name); - ide_dump_identify((u8 *)id); -#endif - ide_fix_driveid(id); - - /* - * ATA_CMD_ID_ATA returns little-endian info, - * ATA_CMD_ID_ATAPI *usually* returns little-endian info. - */ - if (cmd == ATA_CMD_ID_ATAPI) { - if ((m[0] == 'N' && m[1] == 'E') || /* NEC */ - (m[0] == 'F' && m[1] == 'X') || /* Mitsumi */ - (m[0] == 'P' && m[1] == 'i')) /* Pioneer */ - /* Vertos drives may still be weird */ - bswap ^= 1; - } - - ide_fixstring(m, ATA_ID_PROD_LEN, bswap); - ide_fixstring((char *)&id[ATA_ID_FW_REV], ATA_ID_FW_REV_LEN, bswap); - ide_fixstring((char *)&id[ATA_ID_SERNO], ATA_ID_SERNO_LEN, bswap); - - /* we depend on this a lot! */ - m[ATA_ID_PROD_LEN - 1] = '\0'; - - if (strstr(m, "E X A B Y T E N E S T")) - drive->dev_flags &= ~IDE_DFLAG_PRESENT; - else - drive->dev_flags |= IDE_DFLAG_PRESENT; -} - -/** - * ide_dev_read_id - send ATA/ATAPI IDENTIFY command - * @drive: drive to identify - * @cmd: command to use - * @id: buffer for IDENTIFY data - * @irq_ctx: flag set when called from the IRQ context - * - * Sends an ATA(PI) IDENTIFY request to a drive and waits for a response. - * - * Returns: 0 device was identified - * 1 device timed-out (no response to identify request) - * 2 device aborted the command (refused to identify itself) - */ - -int ide_dev_read_id(ide_drive_t *drive, u8 cmd, u16 *id, int irq_ctx) -{ - ide_hwif_t *hwif = drive->hwif; - struct ide_io_ports *io_ports = &hwif->io_ports; - const struct ide_tp_ops *tp_ops = hwif->tp_ops; - int use_altstatus = 0, rc; - unsigned long timeout; - u8 s = 0, a = 0; - - /* - * Disable device IRQ. Otherwise we'll get spurious interrupts - * during the identify phase that the IRQ handler isn't expecting. - */ - if (io_ports->ctl_addr) - tp_ops->write_devctl(hwif, ATA_NIEN | ATA_DEVCTL_OBS); - - /* take a deep breath */ - if (irq_ctx) - mdelay(50); - else - msleep(50); - - if (io_ports->ctl_addr && - (hwif->host_flags & IDE_HFLAG_BROKEN_ALTSTATUS) == 0) { - a = tp_ops->read_altstatus(hwif); - s = tp_ops->read_status(hwif); - if ((a ^ s) & ~ATA_SENSE) - /* ancient Seagate drives, broken interfaces */ - printk(KERN_INFO "%s: probing with STATUS(0x%02x) " - "instead of ALTSTATUS(0x%02x)\n", - drive->name, s, a); - else - /* use non-intrusive polling */ - use_altstatus = 1; - } - - /* set features register for atapi - * identify command to be sure of reply - */ - if (cmd == ATA_CMD_ID_ATAPI) { - struct ide_taskfile tf; - - memset(&tf, 0, sizeof(tf)); - /* disable DMA & overlap */ - tp_ops->tf_load(drive, &tf, IDE_VALID_FEATURE); - } - - /* ask drive for ID */ - tp_ops->exec_command(hwif, cmd); - - timeout = ((cmd == ATA_CMD_ID_ATA) ? WAIT_WORSTCASE : WAIT_PIDENTIFY) / 2; - - /* wait for IRQ and ATA_DRQ */ - if (irq_ctx) { - rc = __ide_wait_stat(drive, ATA_DRQ, BAD_R_STAT, timeout, &s); - if (rc) - return 1; - } else { - rc = ide_busy_sleep(drive, timeout, use_altstatus); - if (rc) - return 1; - - msleep(50); - s = tp_ops->read_status(hwif); - } - - if (OK_STAT(s, ATA_DRQ, BAD_R_STAT)) { - /* drive returned ID */ - do_identify(drive, cmd, id); - /* drive responded with ID */ - rc = 0; - /* clear drive IRQ */ - (void)tp_ops->read_status(hwif); - } else { - /* drive refused ID */ - rc = 2; - } - return rc; -} - -int ide_busy_sleep(ide_drive_t *drive, unsigned long timeout, int altstatus) -{ - ide_hwif_t *hwif = drive->hwif; - u8 stat; - - timeout += jiffies; - - do { - msleep(50); /* give drive a breather */ - stat = altstatus ? hwif->tp_ops->read_altstatus(hwif) - : hwif->tp_ops->read_status(hwif); - if ((stat & ATA_BUSY) == 0) - return 0; - } while (time_before(jiffies, timeout)); - - printk(KERN_ERR "%s: timeout in %s\n", drive->name, __func__); - - return 1; /* drive timed-out */ -} - -static u8 ide_read_device(ide_drive_t *drive) -{ - struct ide_taskfile tf; - - drive->hwif->tp_ops->tf_read(drive, &tf, IDE_VALID_DEVICE); - - return tf.device; -} - -/** - * do_probe - probe an IDE device - * @drive: drive to probe - * @cmd: command to use - * - * do_probe() has the difficult job of finding a drive if it exists, - * without getting hung up if it doesn't exist, without trampling on - * ethernet cards, and without leaving any IRQs dangling to haunt us later. - * - * If a drive is "known" to exist (from CMOS or kernel parameters), - * but does not respond right away, the probe will "hang in there" - * for the maximum wait time (about 30 seconds), otherwise it will - * exit much more quickly. - * - * Returns: 0 device was identified - * 1 device timed-out (no response to identify request) - * 2 device aborted the command (refused to identify itself) - * 3 bad status from device (possible for ATAPI drives) - * 4 probe was not attempted because failure was obvious - */ - -static int do_probe (ide_drive_t *drive, u8 cmd) -{ - ide_hwif_t *hwif = drive->hwif; - const struct ide_tp_ops *tp_ops = hwif->tp_ops; - u16 *id = drive->id; - int rc; - u8 present = !!(drive->dev_flags & IDE_DFLAG_PRESENT), stat; - - /* avoid waiting for inappropriate probes */ - if (present && drive->media != ide_disk && cmd == ATA_CMD_ID_ATA) - return 4; - -#ifdef DEBUG - printk(KERN_INFO "probing for %s: present=%d, media=%d, probetype=%s\n", - drive->name, present, drive->media, - (cmd == ATA_CMD_ID_ATA) ? "ATA" : "ATAPI"); -#endif - - /* needed for some systems - * (e.g. crw9624 as drive0 with disk as slave) - */ - msleep(50); - tp_ops->dev_select(drive); - msleep(50); - - if (ide_read_device(drive) != drive->select && present == 0) { - if (drive->dn & 1) { - /* exit with drive0 selected */ - tp_ops->dev_select(hwif->devices[0]); - /* allow ATA_BUSY to assert & clear */ - msleep(50); - } - /* no i/f present: mmm.. this should be a 4 -ml */ - return 3; - } - - stat = tp_ops->read_status(hwif); - - if (OK_STAT(stat, ATA_DRDY, ATA_BUSY) || - present || cmd == ATA_CMD_ID_ATAPI) { - rc = ide_dev_read_id(drive, cmd, id, 0); - if (rc) - /* failed: try again */ - rc = ide_dev_read_id(drive, cmd, id, 0); - - stat = tp_ops->read_status(hwif); - - if (stat == (ATA_BUSY | ATA_DRDY)) - return 4; - - if (rc == 1 && cmd == ATA_CMD_ID_ATAPI) { - printk(KERN_ERR "%s: no response (status = 0x%02x), " - "resetting drive\n", drive->name, stat); - msleep(50); - tp_ops->dev_select(drive); - msleep(50); - tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET); - (void)ide_busy_sleep(drive, WAIT_WORSTCASE, 0); - rc = ide_dev_read_id(drive, cmd, id, 0); - } - - /* ensure drive IRQ is clear */ - stat = tp_ops->read_status(hwif); - - if (rc == 1) - printk(KERN_ERR "%s: no response (status = 0x%02x)\n", - drive->name, stat); - } else { - /* not present or maybe ATAPI */ - rc = 3; - } - if (drive->dn & 1) { - /* exit with drive0 selected */ - tp_ops->dev_select(hwif->devices[0]); - msleep(50); - /* ensure drive irq is clear */ - (void)tp_ops->read_status(hwif); - } - return rc; -} - -/** - * probe_for_drives - upper level drive probe - * @drive: drive to probe for - * - * probe_for_drive() tests for existence of a given drive using do_probe() - * and presents things to the user as needed. - * - * Returns: 0 no device was found - * 1 device was found - * (note: IDE_DFLAG_PRESENT might still be not set) - */ - -static u8 probe_for_drive(ide_drive_t *drive) -{ - char *m; - int rc; - u8 cmd; - - drive->dev_flags &= ~IDE_DFLAG_ID_READ; - - m = (char *)&drive->id[ATA_ID_PROD]; - strcpy(m, "UNKNOWN"); - - /* skip probing? */ - if ((drive->dev_flags & IDE_DFLAG_NOPROBE) == 0) { - /* if !(success||timed-out) */ - cmd = ATA_CMD_ID_ATA; - rc = do_probe(drive, cmd); - if (rc >= 2) { - /* look for ATAPI device */ - cmd = ATA_CMD_ID_ATAPI; - rc = do_probe(drive, cmd); - } - - if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0) - return 0; - - /* identification failed? */ - if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) { - if (drive->media == ide_disk) { - printk(KERN_INFO "%s: non-IDE drive, CHS=%d/%d/%d\n", - drive->name, drive->cyl, - drive->head, drive->sect); - } else if (drive->media == ide_cdrom) { - printk(KERN_INFO "%s: ATAPI cdrom (?)\n", drive->name); - } else { - /* nuke it */ - printk(KERN_WARNING "%s: Unknown device on bus refused identification. Ignoring.\n", drive->name); - drive->dev_flags &= ~IDE_DFLAG_PRESENT; - } - } else { - if (cmd == ATA_CMD_ID_ATAPI) - ide_classify_atapi_dev(drive); - else - ide_classify_ata_dev(drive); - } - } - - if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0) - return 0; - - /* The drive wasn't being helpful. Add generic info only */ - if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) { - generic_id(drive); - return 1; - } - - if (drive->media == ide_disk) { - ide_disk_init_chs(drive); - ide_disk_init_mult_count(drive); - } - - return 1; -} - -static void hwif_release_dev(struct device *dev) -{ - ide_hwif_t *hwif = container_of(dev, ide_hwif_t, gendev); - - complete(&hwif->gendev_rel_comp); -} - -static int ide_register_port(ide_hwif_t *hwif) -{ - int ret; - - /* register with global device tree */ - dev_set_name(&hwif->gendev, "%s", hwif->name); - dev_set_drvdata(&hwif->gendev, hwif); - if (hwif->gendev.parent == NULL) - hwif->gendev.parent = hwif->dev; - hwif->gendev.release = hwif_release_dev; - - ret = device_register(&hwif->gendev); - if (ret < 0) { - printk(KERN_WARNING "IDE: %s: device_register error: %d\n", - __func__, ret); - goto out; - } - - hwif->portdev = device_create(ide_port_class, &hwif->gendev, - MKDEV(0, 0), hwif, "%s", hwif->name); - if (IS_ERR(hwif->portdev)) { - ret = PTR_ERR(hwif->portdev); - device_unregister(&hwif->gendev); - } -out: - return ret; -} - -/** - * ide_port_wait_ready - wait for port to become ready - * @hwif: IDE port - * - * This is needed on some PPCs and a bunch of BIOS-less embedded - * platforms. Typical cases are: - * - * - The firmware hard reset the disk before booting the kernel, - * the drive is still doing it's poweron-reset sequence, that - * can take up to 30 seconds. - * - * - The firmware does nothing (or no firmware), the device is - * still in POST state (same as above actually). - * - * - Some CD/DVD/Writer combo drives tend to drive the bus during - * their reset sequence even when they are non-selected slave - * devices, thus preventing discovery of the main HD. - * - * Doing this wait-for-non-busy should not harm any existing - * configuration and fix some issues like the above. - * - * BenH. - * - * Returns 0 on success, error code (< 0) otherwise. - */ - -static int ide_port_wait_ready(ide_hwif_t *hwif) -{ - const struct ide_tp_ops *tp_ops = hwif->tp_ops; - ide_drive_t *drive; - int i, rc; - - printk(KERN_DEBUG "Probing IDE interface %s...\n", hwif->name); - - /* Let HW settle down a bit from whatever init state we - * come from */ - mdelay(2); - - /* Wait for BSY bit to go away, spec timeout is 30 seconds, - * I know of at least one disk who takes 31 seconds, I use 35 - * here to be safe - */ - rc = ide_wait_not_busy(hwif, 35000); - if (rc) - return rc; - - /* Now make sure both master & slave are ready */ - ide_port_for_each_dev(i, drive, hwif) { - /* Ignore disks that we will not probe for later. */ - if ((drive->dev_flags & IDE_DFLAG_NOPROBE) == 0 || - (drive->dev_flags & IDE_DFLAG_PRESENT)) { - tp_ops->dev_select(drive); - tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS); - mdelay(2); - rc = ide_wait_not_busy(hwif, 35000); - if (rc) - goto out; - } else - printk(KERN_DEBUG "%s: ide_wait_not_busy() skipped\n", - drive->name); - } -out: - /* Exit function with master reselected (let's be sane) */ - if (i) - tp_ops->dev_select(hwif->devices[0]); - - return rc; -} - -/** - * ide_undecoded_slave - look for bad CF adapters - * @dev1: slave device - * - * Analyse the drives on the interface and attempt to decide if we - * have the same drive viewed twice. This occurs with crap CF adapters - * and PCMCIA sometimes. - */ - -void ide_undecoded_slave(ide_drive_t *dev1) -{ - ide_drive_t *dev0 = dev1->hwif->devices[0]; - - if ((dev1->dn & 1) == 0 || (dev0->dev_flags & IDE_DFLAG_PRESENT) == 0) - return; - - /* If the models don't match they are not the same product */ - if (strcmp((char *)&dev0->id[ATA_ID_PROD], - (char *)&dev1->id[ATA_ID_PROD])) - return; - - /* Serial numbers do not match */ - if (strncmp((char *)&dev0->id[ATA_ID_SERNO], - (char *)&dev1->id[ATA_ID_SERNO], ATA_ID_SERNO_LEN)) - return; - - /* No serial number, thankfully very rare for CF */ - if (*(char *)&dev0->id[ATA_ID_SERNO] == 0) - return; - - /* Appears to be an IDE flash adapter with decode bugs */ - printk(KERN_WARNING "ide-probe: ignoring undecoded slave\n"); - - dev1->dev_flags &= ~IDE_DFLAG_PRESENT; -} - -EXPORT_SYMBOL_GPL(ide_undecoded_slave); - -static int ide_probe_port(ide_hwif_t *hwif) -{ - ide_drive_t *drive; - unsigned int irqd; - int i, rc = -ENODEV; - - BUG_ON(hwif->present); - - if ((hwif->devices[0]->dev_flags & IDE_DFLAG_NOPROBE) && - (hwif->devices[1]->dev_flags & IDE_DFLAG_NOPROBE)) - return -EACCES; - - /* - * We must always disable IRQ, as probe_for_drive will assert IRQ, but - * we'll install our IRQ driver much later... - */ - irqd = hwif->irq; - if (irqd) - disable_irq(hwif->irq); - - if (ide_port_wait_ready(hwif) == -EBUSY) - printk(KERN_DEBUG "%s: Wait for ready failed before probe !\n", hwif->name); - - /* - * Second drive should only exist if first drive was found, - * but a lot of cdrom drives are configured as single slaves. - */ - ide_port_for_each_dev(i, drive, hwif) { - (void) probe_for_drive(drive); - if (drive->dev_flags & IDE_DFLAG_PRESENT) - rc = 0; - } - - /* - * Use cached IRQ number. It might be (and is...) changed by probe - * code above - */ - if (irqd) - enable_irq(irqd); - - return rc; -} - -static void ide_port_tune_devices(ide_hwif_t *hwif) -{ - const struct ide_port_ops *port_ops = hwif->port_ops; - ide_drive_t *drive; - int i; - - ide_port_for_each_present_dev(i, drive, hwif) { - ide_check_nien_quirk_list(drive); - - if (port_ops && port_ops->quirkproc) - port_ops->quirkproc(drive); - } - - ide_port_for_each_present_dev(i, drive, hwif) { - ide_set_max_pio(drive); - - drive->dev_flags |= IDE_DFLAG_NICE1; - - if (hwif->dma_ops) - ide_set_dma(drive); - } -} - -static void ide_initialize_rq(struct request *rq) -{ - struct ide_request *req = blk_mq_rq_to_pdu(rq); - - req->special = NULL; - scsi_req_init(&req->sreq); - req->sreq.sense = req->sense; -} - -static const struct blk_mq_ops ide_mq_ops = { - .queue_rq = ide_queue_rq, - .initialize_rq_fn = ide_initialize_rq, -}; - -/* - * init request queue - */ -static int ide_init_queue(ide_drive_t *drive) -{ - struct request_queue *q; - ide_hwif_t *hwif = drive->hwif; - int max_sectors = 256; - int max_sg_entries = PRD_ENTRIES; - struct blk_mq_tag_set *set; - - /* - * Our default set up assumes the normal IDE case, - * that is 64K segmenting, standard PRD setup - * and LBA28. Some drivers then impose their own - * limits and LBA48 we could raise it but as yet - * do not. - */ - - set = &drive->tag_set; - set->ops = &ide_mq_ops; - set->nr_hw_queues = 1; - set->queue_depth = 32; - set->reserved_tags = 1; - set->cmd_size = sizeof(struct ide_request); - set->numa_node = hwif_to_node(hwif); - set->flags = BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_BLOCKING; - if (blk_mq_alloc_tag_set(set)) - return 1; - - q = blk_mq_init_queue(set); - if (IS_ERR(q)) { - blk_mq_free_tag_set(set); - return 1; - } - - blk_queue_flag_set(QUEUE_FLAG_SCSI_PASSTHROUGH, q); - - q->queuedata = drive; - blk_queue_segment_boundary(q, 0xffff); - - if (hwif->rqsize < max_sectors) - max_sectors = hwif->rqsize; - blk_queue_max_hw_sectors(q, max_sectors); - -#ifdef CONFIG_PCI - /* When we have an IOMMU, we may have a problem where pci_map_sg() - * creates segments that don't completely match our boundary - * requirements and thus need to be broken up again. Because it - * doesn't align properly either, we may actually have to break up - * to more segments than what was we got in the first place, a max - * worst case is twice as many. - * This will be fixed once we teach pci_map_sg() about our boundary - * requirements, hopefully soon. *FIXME* - */ - max_sg_entries >>= 1; -#endif /* CONFIG_PCI */ - - blk_queue_max_segments(q, max_sg_entries); - - /* assign drive queue */ - drive->queue = q; - - return 0; -} - -static DEFINE_MUTEX(ide_cfg_mtx); - -/* - * For any present drive: - * - allocate the block device queue - */ -static int ide_port_setup_devices(ide_hwif_t *hwif) -{ - ide_drive_t *drive; - int i, j = 0; - - mutex_lock(&ide_cfg_mtx); - ide_port_for_each_present_dev(i, drive, hwif) { - if (ide_init_queue(drive)) { - printk(KERN_ERR "ide: failed to init %s\n", - drive->name); - drive->dev_flags &= ~IDE_DFLAG_PRESENT; - continue; - } - - j++; - } - mutex_unlock(&ide_cfg_mtx); - - return j; -} - -static void ide_host_enable_irqs(struct ide_host *host) -{ - ide_hwif_t *hwif; - int i; - - ide_host_for_each_port(i, hwif, host) { - if (hwif == NULL) - continue; - - /* clear any pending IRQs */ - hwif->tp_ops->read_status(hwif); - - /* unmask IRQs */ - if (hwif->io_ports.ctl_addr) - hwif->tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS); - } -} - -/* - * This routine sets up the IRQ for an IDE interface. - */ -static int init_irq (ide_hwif_t *hwif) -{ - struct ide_io_ports *io_ports = &hwif->io_ports; - struct ide_host *host = hwif->host; - irq_handler_t irq_handler = host->irq_handler; - int sa = host->irq_flags; - - if (irq_handler == NULL) - irq_handler = ide_intr; - - if (!host->get_lock) - if (request_irq(hwif->irq, irq_handler, sa, hwif->name, hwif)) - goto out_up; - -#if !defined(__mc68000__) - printk(KERN_INFO "%s at 0x%03lx-0x%03lx,0x%03lx on irq %d", hwif->name, - io_ports->data_addr, io_ports->status_addr, - io_ports->ctl_addr, hwif->irq); -#else - printk(KERN_INFO "%s at 0x%08lx on irq %d", hwif->name, - io_ports->data_addr, hwif->irq); -#endif /* __mc68000__ */ - if (hwif->host->host_flags & IDE_HFLAG_SERIALIZE) - printk(KERN_CONT " (serialized)"); - printk(KERN_CONT "\n"); - - return 0; -out_up: - return 1; -} - -static void ata_probe(dev_t dev) -{ - request_module("ide-disk"); - request_module("ide-cd"); - request_module("ide-tape"); - request_module("ide-floppy"); -} - -void ide_init_disk(struct gendisk *disk, ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - unsigned int unit = drive->dn & 1; - - disk->major = hwif->major; - disk->first_minor = unit << PARTN_BITS; - sprintf(disk->disk_name, "hd%c", 'a' + hwif->index * MAX_DRIVES + unit); - disk->queue = drive->queue; -} - -EXPORT_SYMBOL_GPL(ide_init_disk); - -static void drive_release_dev (struct device *dev) -{ - ide_drive_t *drive = container_of(dev, ide_drive_t, gendev); - - ide_proc_unregister_device(drive); - - if (drive->sense_rq) - blk_mq_free_request(drive->sense_rq); - - blk_cleanup_queue(drive->queue); - drive->queue = NULL; - blk_mq_free_tag_set(&drive->tag_set); - - drive->dev_flags &= ~IDE_DFLAG_PRESENT; - - complete(&drive->gendev_rel_comp); -} - -static int hwif_init(ide_hwif_t *hwif) -{ - if (!hwif->irq) { - printk(KERN_ERR "%s: disabled, no IRQ\n", hwif->name); - return 0; - } - - if (__register_blkdev(hwif->major, hwif->name, ata_probe)) - return 0; - - if (!hwif->sg_max_nents) - hwif->sg_max_nents = PRD_ENTRIES; - - hwif->sg_table = kmalloc_array(hwif->sg_max_nents, - sizeof(struct scatterlist), - GFP_KERNEL); - if (!hwif->sg_table) { - printk(KERN_ERR "%s: unable to allocate SG table.\n", hwif->name); - goto out; - } - - sg_init_table(hwif->sg_table, hwif->sg_max_nents); - - if (init_irq(hwif)) { - printk(KERN_ERR "%s: disabled, unable to get IRQ %d\n", - hwif->name, hwif->irq); - goto out; - } - - return 1; - -out: - unregister_blkdev(hwif->major, hwif->name); - return 0; -} - -static void hwif_register_devices(ide_hwif_t *hwif) -{ - ide_drive_t *drive; - unsigned int i; - - ide_port_for_each_present_dev(i, drive, hwif) { - struct device *dev = &drive->gendev; - int ret; - - dev_set_name(dev, "%u.%u", hwif->index, i); - dev_set_drvdata(dev, drive); - dev->parent = &hwif->gendev; - dev->bus = &ide_bus_type; - dev->release = drive_release_dev; - - ret = device_register(dev); - if (ret < 0) - printk(KERN_WARNING "IDE: %s: device_register error: " - "%d\n", __func__, ret); - } -} - -static void ide_port_init_devices(ide_hwif_t *hwif) -{ - const struct ide_port_ops *port_ops = hwif->port_ops; - ide_drive_t *drive; - int i; - - ide_port_for_each_dev(i, drive, hwif) { - drive->dn = i + hwif->channel * 2; - - if (hwif->host_flags & IDE_HFLAG_IO_32BIT) - drive->io_32bit = 1; - if (hwif->host_flags & IDE_HFLAG_NO_IO_32BIT) - drive->dev_flags |= IDE_DFLAG_NO_IO_32BIT; - if (hwif->host_flags & IDE_HFLAG_UNMASK_IRQS) - drive->dev_flags |= IDE_DFLAG_UNMASK; - if (hwif->host_flags & IDE_HFLAG_NO_UNMASK_IRQS) - drive->dev_flags |= IDE_DFLAG_NO_UNMASK; - - drive->pio_mode = XFER_PIO_0; - - if (port_ops && port_ops->init_dev) - port_ops->init_dev(drive); - } -} - -static void ide_init_port(ide_hwif_t *hwif, unsigned int port, - const struct ide_port_info *d) -{ - hwif->channel = port; - - hwif->chipset = d->chipset ? d->chipset : ide_pci; - - if (d->init_iops) - d->init_iops(hwif); - - /* ->host_flags may be set by ->init_iops (or even earlier...) */ - hwif->host_flags |= d->host_flags; - hwif->pio_mask = d->pio_mask; - - if (d->tp_ops) - hwif->tp_ops = d->tp_ops; - - /* ->set_pio_mode for DTC2278 is currently limited to port 0 */ - if ((hwif->host_flags & IDE_HFLAG_DTC2278) == 0 || hwif->channel == 0) - hwif->port_ops = d->port_ops; - - hwif->swdma_mask = d->swdma_mask; - hwif->mwdma_mask = d->mwdma_mask; - hwif->ultra_mask = d->udma_mask; - - if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0) { - int rc; - - hwif->dma_ops = d->dma_ops; - - if (d->init_dma) - rc = d->init_dma(hwif, d); - else - rc = ide_hwif_setup_dma(hwif, d); - - if (rc < 0) { - printk(KERN_INFO "%s: DMA disabled\n", hwif->name); - - hwif->dma_ops = NULL; - hwif->dma_base = 0; - hwif->swdma_mask = 0; - hwif->mwdma_mask = 0; - hwif->ultra_mask = 0; - } - } - - if ((d->host_flags & IDE_HFLAG_SERIALIZE) || - ((d->host_flags & IDE_HFLAG_SERIALIZE_DMA) && hwif->dma_base)) - hwif->host->host_flags |= IDE_HFLAG_SERIALIZE; - - if (d->max_sectors) - hwif->rqsize = d->max_sectors; - else { - if ((hwif->host_flags & IDE_HFLAG_NO_LBA48) || - (hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA)) - hwif->rqsize = 256; - else - hwif->rqsize = 65536; - } - - /* call chipset specific routine for each enabled port */ - if (d->init_hwif) - d->init_hwif(hwif); -} - -static void ide_port_cable_detect(ide_hwif_t *hwif) -{ - const struct ide_port_ops *port_ops = hwif->port_ops; - - if (port_ops && port_ops->cable_detect && (hwif->ultra_mask & 0x78)) { - if (hwif->cbl != ATA_CBL_PATA40_SHORT) - hwif->cbl = port_ops->cable_detect(hwif); - } -} - -/* - * Deferred request list insertion handler - */ -static void drive_rq_insert_work(struct work_struct *work) -{ - ide_drive_t *drive = container_of(work, ide_drive_t, rq_work); - ide_hwif_t *hwif = drive->hwif; - struct request *rq; - blk_status_t ret; - LIST_HEAD(list); - - blk_mq_quiesce_queue(drive->queue); - - ret = BLK_STS_OK; - spin_lock_irq(&hwif->lock); - while (!list_empty(&drive->rq_list)) { - rq = list_first_entry(&drive->rq_list, struct request, queuelist); - list_del_init(&rq->queuelist); - - spin_unlock_irq(&hwif->lock); - ret = ide_issue_rq(drive, rq, true); - spin_lock_irq(&hwif->lock); - } - spin_unlock_irq(&hwif->lock); - - blk_mq_unquiesce_queue(drive->queue); - - if (ret != BLK_STS_OK) - kblockd_schedule_work(&drive->rq_work); -} - -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 void ide_port_init_devices_data(ide_hwif_t *hwif) -{ - ide_drive_t *drive; - int i; - - ide_port_for_each_dev(i, drive, hwif) { - u8 j = (hwif->index * MAX_DRIVES) + i; - u16 *saved_id = drive->id; - - memset(drive, 0, sizeof(*drive)); - memset(saved_id, 0, SECTOR_SIZE); - drive->id = saved_id; - - drive->media = ide_disk; - drive->select = (i << 4) | ATA_DEVICE_OBS; - drive->hwif = hwif; - drive->ready_stat = ATA_DRDY; - drive->bad_wstat = BAD_W_STAT; - drive->special_flags = IDE_SFLAG_RECALIBRATE | - IDE_SFLAG_SET_GEOMETRY; - 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); - - INIT_WORK(&drive->rq_work, drive_rq_insert_work); - INIT_LIST_HEAD(&drive->rq_list); - } -} - -static void ide_init_port_data(ide_hwif_t *hwif, unsigned int index) -{ - /* 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; - - spin_lock_init(&hwif->lock); - - timer_setup(&hwif->timer, ide_timer_expiry, 0); - - init_completion(&hwif->gendev_rel_comp); - - hwif->tp_ops = &default_tp_ops; - - ide_port_init_devices_data(hwif); -} - -static void ide_init_port_hw(ide_hwif_t *hwif, struct ide_hw *hw) -{ - memcpy(&hwif->io_ports, &hw->io_ports, sizeof(hwif->io_ports)); - hwif->irq = hw->irq; - hwif->dev = hw->dev; - hwif->gendev.parent = hw->parent ? hw->parent : hw->dev; - hwif->config_data = hw->config; -} - -static unsigned int ide_indexes; - -/** - * ide_find_port_slot - find free port slot - * @d: IDE port info - * - * Return the new port slot index or -ENOENT if we are out of free slots. - */ - -static int ide_find_port_slot(const struct ide_port_info *d) -{ - int idx = -ENOENT; - u8 bootable = (d && (d->host_flags & IDE_HFLAG_NON_BOOTABLE)) ? 0 : 1; - u8 i = (d && (d->host_flags & IDE_HFLAG_QD_2ND_PORT)) ? 1 : 0; - - /* - * Claim an unassigned slot. - * - * Give preference to claiming other slots before claiming ide0/ide1, - * just in case there's another interface yet-to-be-scanned - * which uses ports 0x1f0/0x170 (the ide0/ide1 defaults). - * - * Unless there is a bootable card that does not use the standard - * ports 0x1f0/0x170 (the ide0/ide1 defaults). - */ - mutex_lock(&ide_cfg_mtx); - if (bootable) { - if ((ide_indexes | i) != (1 << MAX_HWIFS) - 1) - idx = ffz(ide_indexes | i); - } else { - if ((ide_indexes | 3) != (1 << MAX_HWIFS) - 1) - idx = ffz(ide_indexes | 3); - else if ((ide_indexes & 3) != 3) - idx = ffz(ide_indexes); - } - if (idx >= 0) - ide_indexes |= (1 << idx); - mutex_unlock(&ide_cfg_mtx); - - return idx; -} - -static void ide_free_port_slot(int idx) -{ - mutex_lock(&ide_cfg_mtx); - ide_indexes &= ~(1 << idx); - mutex_unlock(&ide_cfg_mtx); -} - -static void ide_port_free_devices(ide_hwif_t *hwif) -{ - ide_drive_t *drive; - int i; - - ide_port_for_each_dev(i, drive, hwif) { - kfree(drive->id); - kfree(drive); - } -} - -static int ide_port_alloc_devices(ide_hwif_t *hwif, int node) -{ - ide_drive_t *drive; - int i; - - for (i = 0; i < MAX_DRIVES; i++) { - drive = kzalloc_node(sizeof(*drive), GFP_KERNEL, node); - if (drive == NULL) - goto out_nomem; - - /* - * In order to keep things simple we have an id - * block for all drives at all times. If the device - * is pre ATA or refuses ATA/ATAPI identify we - * will add faked data to this. - * - * Also note that 0 everywhere means "can't do X" - */ - drive->id = kzalloc_node(SECTOR_SIZE, GFP_KERNEL, node); - if (drive->id == NULL) - goto out_free_drive; - - hwif->devices[i] = drive; - } - return 0; - -out_free_drive: - kfree(drive); -out_nomem: - ide_port_free_devices(hwif); - return -ENOMEM; -} - -struct ide_host *ide_host_alloc(const struct ide_port_info *d, - struct ide_hw **hws, unsigned int n_ports) -{ - struct ide_host *host; - struct device *dev = hws[0] ? hws[0]->dev : NULL; - int node = dev ? dev_to_node(dev) : -1; - int i; - - host = kzalloc_node(sizeof(*host), GFP_KERNEL, node); - if (host == NULL) - return NULL; - - for (i = 0; i < n_ports; i++) { - ide_hwif_t *hwif; - int idx; - - if (hws[i] == NULL) - continue; - - hwif = kzalloc_node(sizeof(*hwif), GFP_KERNEL, node); - if (hwif == NULL) - continue; - - if (ide_port_alloc_devices(hwif, node) < 0) { - kfree(hwif); - continue; - } - - idx = ide_find_port_slot(d); - if (idx < 0) { - printk(KERN_ERR "%s: no free slot for interface\n", - d ? d->name : "ide"); - ide_port_free_devices(hwif); - kfree(hwif); - continue; - } - - ide_init_port_data(hwif, idx); - - hwif->host = host; - - host->ports[i] = hwif; - host->n_ports++; - } - - if (host->n_ports == 0) { - kfree(host); - return NULL; - } - - host->dev[0] = dev; - - if (d) { - host->init_chipset = d->init_chipset; - host->get_lock = d->get_lock; - host->release_lock = d->release_lock; - host->host_flags = d->host_flags; - host->irq_flags = d->irq_flags; - } - - return host; -} -EXPORT_SYMBOL_GPL(ide_host_alloc); - -static void ide_port_free(ide_hwif_t *hwif) -{ - ide_port_free_devices(hwif); - ide_free_port_slot(hwif->index); - kfree(hwif); -} - -static void ide_disable_port(ide_hwif_t *hwif) -{ - struct ide_host *host = hwif->host; - int i; - - printk(KERN_INFO "%s: disabling port\n", hwif->name); - - for (i = 0; i < MAX_HOST_PORTS; i++) { - if (host->ports[i] == hwif) { - host->ports[i] = NULL; - host->n_ports--; - } - } - - ide_port_free(hwif); -} - -int ide_host_register(struct ide_host *host, const struct ide_port_info *d, - struct ide_hw **hws) -{ - ide_hwif_t *hwif, *mate = NULL; - int i, j = 0; - - pr_warn("legacy IDE will be removed in 2021, please switch to libata\n" - "Report any missing HW support to linux-ide@vger.kernel.org\n"); - - ide_host_for_each_port(i, hwif, host) { - if (hwif == NULL) { - mate = NULL; - continue; - } - - ide_init_port_hw(hwif, hws[i]); - ide_port_apply_params(hwif); - - if ((i & 1) && mate) { - hwif->mate = mate; - mate->mate = hwif; - } - - mate = (i & 1) ? NULL : hwif; - - ide_init_port(hwif, i & 1, d); - ide_port_cable_detect(hwif); - - hwif->port_flags |= IDE_PFLAG_PROBING; - - ide_port_init_devices(hwif); - } - - ide_host_for_each_port(i, hwif, host) { - if (hwif == NULL) - continue; - - if (ide_probe_port(hwif) == 0) - hwif->present = 1; - - hwif->port_flags &= ~IDE_PFLAG_PROBING; - - if ((hwif->host_flags & IDE_HFLAG_4DRIVES) == 0 || - hwif->mate == NULL || hwif->mate->present == 0) { - if (ide_register_port(hwif)) { - ide_disable_port(hwif); - continue; - } - } - - if (hwif->present) - ide_port_tune_devices(hwif); - } - - ide_host_enable_irqs(host); - - ide_host_for_each_port(i, hwif, host) { - if (hwif == NULL) - continue; - - if (hwif_init(hwif) == 0) { - printk(KERN_INFO "%s: failed to initialize IDE " - "interface\n", hwif->name); - device_unregister(hwif->portdev); - device_unregister(&hwif->gendev); - ide_disable_port(hwif); - continue; - } - - if (hwif->present) - if (ide_port_setup_devices(hwif) == 0) { - hwif->present = 0; - continue; - } - - j++; - - ide_acpi_init_port(hwif); - - if (hwif->present) - ide_acpi_port_init_devices(hwif); - } - - ide_host_for_each_port(i, hwif, host) { - if (hwif == NULL) - continue; - - ide_sysfs_register_port(hwif); - ide_proc_register_port(hwif); - - if (hwif->present) { - ide_proc_port_register_devices(hwif); - hwif_register_devices(hwif); - } - } - - return j ? 0 : -1; -} -EXPORT_SYMBOL_GPL(ide_host_register); - -int ide_host_add(const struct ide_port_info *d, struct ide_hw **hws, - unsigned int n_ports, struct ide_host **hostp) -{ - struct ide_host *host; - int rc; - - host = ide_host_alloc(d, hws, n_ports); - if (host == NULL) - return -ENOMEM; - - rc = ide_host_register(host, d, hws); - if (rc) { - ide_host_free(host); - return rc; - } - - if (hostp) - *hostp = host; - - return 0; -} -EXPORT_SYMBOL_GPL(ide_host_add); - -static void __ide_port_unregister_devices(ide_hwif_t *hwif) -{ - ide_drive_t *drive; - int i; - - ide_port_for_each_present_dev(i, drive, hwif) { - device_unregister(&drive->gendev); - wait_for_completion(&drive->gendev_rel_comp); - } -} - -void ide_port_unregister_devices(ide_hwif_t *hwif) -{ - mutex_lock(&ide_cfg_mtx); - __ide_port_unregister_devices(hwif); - hwif->present = 0; - ide_port_init_devices_data(hwif); - mutex_unlock(&ide_cfg_mtx); -} -EXPORT_SYMBOL_GPL(ide_port_unregister_devices); - -/** - * ide_unregister - free an IDE interface - * @hwif: IDE interface - * - * Perform the final unregister of an IDE interface. - * - * Locking: - * The caller must not hold the IDE locks. - * - * 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). - */ - -static void ide_unregister(ide_hwif_t *hwif) -{ - mutex_lock(&ide_cfg_mtx); - - if (hwif->present) { - __ide_port_unregister_devices(hwif); - hwif->present = 0; - } - - ide_proc_unregister_port(hwif); - - if (!hwif->host->get_lock) - free_irq(hwif->irq, hwif); - - device_unregister(hwif->portdev); - device_unregister(&hwif->gendev); - wait_for_completion(&hwif->gendev_rel_comp); - - /* - * Remove us from the kernel's knowledge - */ - kfree(hwif->sg_table); - unregister_blkdev(hwif->major, hwif->name); - - ide_release_dma_engine(hwif); - - mutex_unlock(&ide_cfg_mtx); -} - -void ide_host_free(struct ide_host *host) -{ - ide_hwif_t *hwif; - int i; - - ide_host_for_each_port(i, hwif, host) { - if (hwif) - ide_port_free(hwif); - } - - kfree(host); -} -EXPORT_SYMBOL_GPL(ide_host_free); - -void ide_host_remove(struct ide_host *host) -{ - ide_hwif_t *hwif; - int i; - - ide_host_for_each_port(i, hwif, host) { - if (hwif) - ide_unregister(hwif); - } - - ide_host_free(host); -} -EXPORT_SYMBOL_GPL(ide_host_remove); - -void ide_port_scan(ide_hwif_t *hwif) -{ - int rc; - - ide_port_apply_params(hwif); - ide_port_cable_detect(hwif); - - hwif->port_flags |= IDE_PFLAG_PROBING; - - ide_port_init_devices(hwif); - - rc = ide_probe_port(hwif); - - hwif->port_flags &= ~IDE_PFLAG_PROBING; - - if (rc < 0) - return; - - hwif->present = 1; - - ide_port_tune_devices(hwif); - ide_port_setup_devices(hwif); - ide_acpi_port_init_devices(hwif); - hwif_register_devices(hwif); - ide_proc_port_register_devices(hwif); -} -EXPORT_SYMBOL_GPL(ide_port_scan); |