![Alan](/assets/img/avatar_default.png)
It tries to spot when the slave is a mirror of the master and to fix up problems that causes. I've got two confirmations so far that this plus the "can fail set_xfer" patch work for folks who had problems before. Also if you are unfortunate enough to be running something like HAL then it'll automount the same disk twice for you and corrupt it without the fix (aint that nice...) Tested (successfully) by Komuro <komurojun-mbn@nifty.com>. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
437 lines
14 KiB
C
437 lines
14 KiB
C
/*
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* pata_pcmcia.c - PCMCIA PATA controller driver.
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* Copyright 2005-2006 Red Hat Inc <alan@redhat.com>, all rights reserved.
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* PCMCIA ident update Copyright 2006 Marcin Juszkiewicz
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* <openembedded@hrw.one.pl>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Heavily based upon ide-cs.c
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* The initial developer of the original code is David A. Hinds
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* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
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* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/blkdev.h>
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#include <linux/delay.h>
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#include <scsi/scsi_host.h>
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#include <linux/ata.h>
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#include <linux/libata.h>
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#include <pcmcia/cs_types.h>
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#include <pcmcia/cs.h>
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#include <pcmcia/cistpl.h>
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#include <pcmcia/ds.h>
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#include <pcmcia/cisreg.h>
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#include <pcmcia/ciscode.h>
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#define DRV_NAME "pata_pcmcia"
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#define DRV_VERSION "0.3.1"
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/*
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* Private data structure to glue stuff together
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*/
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struct ata_pcmcia_info {
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struct pcmcia_device *pdev;
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int ndev;
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dev_node_t node;
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};
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/**
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* pcmcia_set_mode - PCMCIA specific mode setup
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* @ap: Port
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* @r_failed_dev: Return pointer for failed device
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*
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* Perform the tuning and setup of the devices and timings, which
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* for PCMCIA is the same as any other controller. We wrap it however
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* as we need to spot hardware with incorrect or missing master/slave
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* decode, which alas is embarrassingly common in the PC world
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*/
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static int pcmcia_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
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{
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struct ata_device *master = &ap->device[0];
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struct ata_device *slave = &ap->device[1];
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if (!ata_dev_enabled(master) || !ata_dev_enabled(slave))
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return ata_do_set_mode(ap, r_failed_dev);
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if (memcmp(master->id + ATA_ID_FW_REV, slave->id + ATA_ID_FW_REV,
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ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0)
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{
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/* Suspicious match, but could be two cards from
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the same vendor - check serial */
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if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO,
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ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) {
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ata_dev_printk(slave, KERN_WARNING, "is a ghost device, ignoring.\n");
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ata_dev_disable(slave);
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}
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}
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return ata_do_set_mode(ap, r_failed_dev);
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}
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static struct scsi_host_template pcmcia_sht = {
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.module = THIS_MODULE,
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.name = DRV_NAME,
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.ioctl = ata_scsi_ioctl,
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.queuecommand = ata_scsi_queuecmd,
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.can_queue = ATA_DEF_QUEUE,
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.this_id = ATA_SHT_THIS_ID,
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.sg_tablesize = LIBATA_MAX_PRD,
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.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
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.emulated = ATA_SHT_EMULATED,
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.use_clustering = ATA_SHT_USE_CLUSTERING,
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.proc_name = DRV_NAME,
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.dma_boundary = ATA_DMA_BOUNDARY,
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.slave_configure = ata_scsi_slave_config,
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.slave_destroy = ata_scsi_slave_destroy,
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.bios_param = ata_std_bios_param,
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};
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static struct ata_port_operations pcmcia_port_ops = {
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.set_mode = pcmcia_set_mode,
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.port_disable = ata_port_disable,
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.tf_load = ata_tf_load,
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.tf_read = ata_tf_read,
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.check_status = ata_check_status,
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.exec_command = ata_exec_command,
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.dev_select = ata_std_dev_select,
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.freeze = ata_bmdma_freeze,
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.thaw = ata_bmdma_thaw,
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.error_handler = ata_bmdma_error_handler,
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.post_internal_cmd = ata_bmdma_post_internal_cmd,
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.cable_detect = ata_cable_40wire,
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.qc_prep = ata_qc_prep,
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.qc_issue = ata_qc_issue_prot,
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.data_xfer = ata_data_xfer_noirq,
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.irq_handler = ata_interrupt,
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.irq_clear = ata_bmdma_irq_clear,
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.irq_on = ata_irq_on,
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.irq_ack = ata_irq_ack,
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.port_start = ata_port_start,
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};
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#define CS_CHECK(fn, ret) \
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do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
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/**
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* pcmcia_init_one - attach a PCMCIA interface
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* @pdev: pcmcia device
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*
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* Register a PCMCIA IDE interface. Such interfaces are PIO 0 and
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* shared IRQ.
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*/
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static int pcmcia_init_one(struct pcmcia_device *pdev)
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{
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struct ata_probe_ent ae;
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struct ata_pcmcia_info *info;
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tuple_t tuple;
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struct {
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unsigned short buf[128];
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cisparse_t parse;
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config_info_t conf;
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cistpl_cftable_entry_t dflt;
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} *stk = NULL;
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cistpl_cftable_entry_t *cfg;
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int pass, last_ret = 0, last_fn = 0, is_kme = 0, ret = -ENOMEM;
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unsigned long io_base, ctl_base;
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void __iomem *io_addr, *ctl_addr;
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info = kzalloc(sizeof(*info), GFP_KERNEL);
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if (info == NULL)
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return -ENOMEM;
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/* Glue stuff together. FIXME: We may be able to get rid of info with care */
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info->pdev = pdev;
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pdev->priv = info;
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/* Set up attributes in order to probe card and get resources */
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pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
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pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
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pdev->io.IOAddrLines = 3;
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pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
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pdev->irq.IRQInfo1 = IRQ_LEVEL_ID;
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pdev->conf.Attributes = CONF_ENABLE_IRQ;
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pdev->conf.IntType = INT_MEMORY_AND_IO;
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/* Allocate resoure probing structures */
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stk = kzalloc(sizeof(*stk), GFP_KERNEL);
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if (!stk)
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goto out1;
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cfg = &stk->parse.cftable_entry;
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/* Tuples we are walking */
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tuple.TupleData = (cisdata_t *)&stk->buf;
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tuple.TupleOffset = 0;
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tuple.TupleDataMax = 255;
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tuple.Attributes = 0;
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/* See if we have a manufacturer identifier. Use it to set is_kme for
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vendor quirks */
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is_kme = ((pdev->manf_id == MANFID_KME) &&
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((pdev->card_id == PRODID_KME_KXLC005_A) ||
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(pdev->card_id == PRODID_KME_KXLC005_B)));
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/* Not sure if this is right... look up the current Vcc */
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CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(pdev, &stk->conf));
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/* link->conf.Vcc = stk->conf.Vcc; */
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pass = io_base = ctl_base = 0;
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tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
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tuple.Attributes = 0;
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CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple));
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/* Now munch the resources looking for a suitable set */
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while (1) {
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if (pcmcia_get_tuple_data(pdev, &tuple) != 0)
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goto next_entry;
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if (pcmcia_parse_tuple(pdev, &tuple, &stk->parse) != 0)
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goto next_entry;
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/* Check for matching Vcc, unless we're desperate */
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if (!pass) {
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if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
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if (stk->conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
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goto next_entry;
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} else if (stk->dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) {
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if (stk->conf.Vcc != stk->dflt.vcc.param[CISTPL_POWER_VNOM] / 10000)
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goto next_entry;
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}
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}
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if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
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pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
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else if (stk->dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
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pdev->conf.Vpp = stk->dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;
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if ((cfg->io.nwin > 0) || (stk->dflt.io.nwin > 0)) {
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cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &stk->dflt.io;
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pdev->conf.ConfigIndex = cfg->index;
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pdev->io.BasePort1 = io->win[0].base;
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pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
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if (!(io->flags & CISTPL_IO_16BIT))
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pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
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if (io->nwin == 2) {
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pdev->io.NumPorts1 = 8;
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pdev->io.BasePort2 = io->win[1].base;
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pdev->io.NumPorts2 = (is_kme) ? 2 : 1;
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if (pcmcia_request_io(pdev, &pdev->io) != 0)
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goto next_entry;
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io_base = pdev->io.BasePort1;
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ctl_base = pdev->io.BasePort2;
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} else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
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pdev->io.NumPorts1 = io->win[0].len;
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pdev->io.NumPorts2 = 0;
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if (pcmcia_request_io(pdev, &pdev->io) != 0)
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goto next_entry;
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io_base = pdev->io.BasePort1;
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ctl_base = pdev->io.BasePort1 + 0x0e;
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} else goto next_entry;
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/* If we've got this far, we're done */
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break;
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}
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next_entry:
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if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
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memcpy(&stk->dflt, cfg, sizeof(stk->dflt));
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if (pass) {
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CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(pdev, &tuple));
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} else if (pcmcia_get_next_tuple(pdev, &tuple) != 0) {
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CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple));
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memset(&stk->dflt, 0, sizeof(stk->dflt));
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pass++;
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}
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}
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CS_CHECK(RequestIRQ, pcmcia_request_irq(pdev, &pdev->irq));
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CS_CHECK(RequestConfiguration, pcmcia_request_configuration(pdev, &pdev->conf));
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/* iomap */
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ret = -ENOMEM;
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io_addr = devm_ioport_map(&pdev->dev, io_base, 8);
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ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1);
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if (!io_addr || !ctl_addr)
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goto failed;
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/* Success. Disable the IRQ nIEN line, do quirks */
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iowrite8(0x02, ctl_addr);
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if (is_kme)
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iowrite8(0x81, ctl_addr + 0x01);
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/* FIXME: Could be more ports at base + 0x10 but we only deal with
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one right now */
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if (pdev->io.NumPorts1 >= 0x20)
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printk(KERN_WARNING DRV_NAME ": second channel not yet supported.\n");
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/*
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* Having done the PCMCIA plumbing the ATA side is relatively
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* sane.
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*/
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memset(&ae, 0, sizeof(struct ata_probe_ent));
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INIT_LIST_HEAD(&ae.node);
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ae.dev = &pdev->dev;
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ae.port_ops = &pcmcia_port_ops;
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ae.sht = &pcmcia_sht;
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ae.n_ports = 1;
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ae.pio_mask = 1; /* ISA so PIO 0 cycles */
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ae.irq = pdev->irq.AssignedIRQ;
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ae.irq_flags = IRQF_SHARED;
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ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
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ae.port[0].cmd_addr = io_addr;
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ae.port[0].altstatus_addr = ctl_addr;
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ae.port[0].ctl_addr = ctl_addr;
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ata_std_ports(&ae.port[0]);
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ret = -ENODEV;
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if (ata_device_add(&ae) == 0)
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goto failed;
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info->ndev = 1;
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kfree(stk);
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return 0;
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cs_failed:
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cs_error(pdev, last_fn, last_ret);
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failed:
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kfree(stk);
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info->ndev = 0;
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pcmcia_disable_device(pdev);
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out1:
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kfree(info);
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return ret;
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}
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/**
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* pcmcia_remove_one - unplug an pcmcia interface
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* @pdev: pcmcia device
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*
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* A PCMCIA ATA device has been unplugged. Perform the needed
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* cleanup. Also called on module unload for any active devices.
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*/
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static void pcmcia_remove_one(struct pcmcia_device *pdev)
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{
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struct ata_pcmcia_info *info = pdev->priv;
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struct device *dev = &pdev->dev;
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if (info != NULL) {
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/* If we have attached the device to the ATA layer, detach it */
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if (info->ndev) {
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struct ata_host *host = dev_get_drvdata(dev);
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ata_host_detach(host);
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}
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info->ndev = 0;
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pdev->priv = NULL;
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}
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pcmcia_disable_device(pdev);
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kfree(info);
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}
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static struct pcmcia_device_id pcmcia_devices[] = {
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PCMCIA_DEVICE_FUNC_ID(4),
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PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */
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PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */
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PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */
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PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
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PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */
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PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */
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PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
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PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */
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PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */
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PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
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PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */
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PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */
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PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
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PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
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PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
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PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
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PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
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PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
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PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
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PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
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PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
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PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591),
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PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
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PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
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PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
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PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
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PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
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PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
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PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b),
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PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
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PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
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PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b),
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PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
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PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
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PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
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PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
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PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
|
|
PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),
|
|
PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),
|
|
PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),
|
|
PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
|
|
PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443),
|
|
PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
|
|
PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
|
|
PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
|
|
PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
|
|
PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
|
|
PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
|
|
PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
|
|
PCMCIA_DEVICE_NULL,
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices);
|
|
|
|
static struct pcmcia_driver pcmcia_driver = {
|
|
.owner = THIS_MODULE,
|
|
.drv = {
|
|
.name = DRV_NAME,
|
|
},
|
|
.id_table = pcmcia_devices,
|
|
.probe = pcmcia_init_one,
|
|
.remove = pcmcia_remove_one,
|
|
};
|
|
|
|
static int __init pcmcia_init(void)
|
|
{
|
|
return pcmcia_register_driver(&pcmcia_driver);
|
|
}
|
|
|
|
static void __exit pcmcia_exit(void)
|
|
{
|
|
pcmcia_unregister_driver(&pcmcia_driver);
|
|
}
|
|
|
|
MODULE_AUTHOR("Alan Cox");
|
|
MODULE_DESCRIPTION("low-level driver for PCMCIA ATA");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_VERSION(DRV_VERSION);
|
|
|
|
module_init(pcmcia_init);
|
|
module_exit(pcmcia_exit);
|