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linux/drivers/ata/pata_pcmcia.c
Tejun Heo afdfe899e6 [PATCH] libata: add missing sht->slave_destroy 
Many LLDs are missing sht->slave_destroy.  The method is mandatory to
support device warm unplugging (echo 1 > /sys/.../delete).  Without
it, libata might access released scsi device.

Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-11-29 14:57:58 +09:00

397 lines
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/*
* pata_pcmcia.c - PCMCIA PATA controller driver.
* Copyright 2005-2006 Red Hat Inc <alan@redhat.com>, all rights reserved.
* PCMCIA ident update Copyright 2006 Marcin Juszkiewicz
* <openembedded@hrw.one.pl>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Heavily based upon ide-cs.c
* The initial developer of the original code is David A. Hinds
* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <scsi/scsi_host.h>
#include <linux/ata.h>
#include <linux/libata.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ciscode.h>
#define DRV_NAME "pata_pcmcia"
#define DRV_VERSION "0.2.11"
/*
* Private data structure to glue stuff together
*/
struct ata_pcmcia_info {
struct pcmcia_device *pdev;
int ndev;
dev_node_t node;
};
static struct scsi_host_template pcmcia_sht = {
.module = THIS_MODULE,
.name = DRV_NAME,
.ioctl = ata_scsi_ioctl,
.queuecommand = ata_scsi_queuecmd,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = LIBATA_MAX_PRD,
.max_sectors = ATA_MAX_SECTORS,
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
.emulated = ATA_SHT_EMULATED,
.use_clustering = ATA_SHT_USE_CLUSTERING,
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
.slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
static struct ata_port_operations pcmcia_port_ops = {
.port_disable = ata_port_disable,
.tf_load = ata_tf_load,
.tf_read = ata_tf_read,
.check_status = ata_check_status,
.exec_command = ata_exec_command,
.dev_select = ata_std_dev_select,
.freeze = ata_bmdma_freeze,
.thaw = ata_bmdma_thaw,
.error_handler = ata_bmdma_error_handler,
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.qc_prep = ata_qc_prep,
.qc_issue = ata_qc_issue_prot,
.data_xfer = ata_pio_data_xfer_noirq,
.irq_handler = ata_interrupt,
.irq_clear = ata_bmdma_irq_clear,
.port_start = ata_port_start,
.port_stop = ata_port_stop,
.host_stop = ata_host_stop
};
#define CS_CHECK(fn, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
/**
* pcmcia_init_one - attach a PCMCIA interface
* @pdev: pcmcia device
*
* Register a PCMCIA IDE interface. Such interfaces are PIO 0 and
* shared IRQ.
*/
static int pcmcia_init_one(struct pcmcia_device *pdev)
{
struct ata_probe_ent ae;
struct ata_pcmcia_info *info;
tuple_t tuple;
struct {
unsigned short buf[128];
cisparse_t parse;
config_info_t conf;
cistpl_cftable_entry_t dflt;
} *stk = NULL;
cistpl_cftable_entry_t *cfg;
int pass, last_ret = 0, last_fn = 0, is_kme = 0, ret = -ENOMEM;
unsigned long io_base, ctl_base;
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (info == NULL)
return -ENOMEM;
/* Glue stuff together. FIXME: We may be able to get rid of info with care */
info->pdev = pdev;
pdev->priv = info;
/* Set up attributes in order to probe card and get resources */
pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
pdev->io.IOAddrLines = 3;
pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
pdev->irq.IRQInfo1 = IRQ_LEVEL_ID;
pdev->conf.Attributes = CONF_ENABLE_IRQ;
pdev->conf.IntType = INT_MEMORY_AND_IO;
/* Allocate resoure probing structures */
stk = kzalloc(sizeof(*stk), GFP_KERNEL);
if (!stk)
goto out1;
cfg = &stk->parse.cftable_entry;
/* Tuples we are walking */
tuple.TupleData = (cisdata_t *)&stk->buf;
tuple.TupleOffset = 0;
tuple.TupleDataMax = 255;
tuple.Attributes = 0;
tuple.DesiredTuple = CISTPL_CONFIG;
CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple));
CS_CHECK(GetTupleData, pcmcia_get_tuple_data(pdev, &tuple));
CS_CHECK(ParseTuple, pcmcia_parse_tuple(pdev, &tuple, &stk->parse));
pdev->conf.ConfigBase = stk->parse.config.base;
pdev->conf.Present = stk->parse.config.rmask[0];
/* See if we have a manufacturer identifier. Use it to set is_kme for
vendor quirks */
tuple.DesiredTuple = CISTPL_MANFID;
if (!pcmcia_get_first_tuple(pdev, &tuple) && !pcmcia_get_tuple_data(pdev, &tuple) && !pcmcia_parse_tuple(pdev, &tuple, &stk->parse))
is_kme = ((stk->parse.manfid.manf == MANFID_KME) && ((stk->parse.manfid.card == PRODID_KME_KXLC005_A) || (stk->parse.manfid.card == PRODID_KME_KXLC005_B)));
/* Not sure if this is right... look up the current Vcc */
CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(pdev, &stk->conf));
/* link->conf.Vcc = stk->conf.Vcc; */
pass = io_base = ctl_base = 0;
tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
tuple.Attributes = 0;
CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple));
/* Now munch the resources looking for a suitable set */
while (1) {
if (pcmcia_get_tuple_data(pdev, &tuple) != 0)
goto next_entry;
if (pcmcia_parse_tuple(pdev, &tuple, &stk->parse) != 0)
goto next_entry;
/* Check for matching Vcc, unless we're desperate */
if (!pass) {
if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
if (stk->conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
goto next_entry;
} else if (stk->dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) {
if (stk->conf.Vcc != stk->dflt.vcc.param[CISTPL_POWER_VNOM] / 10000)
goto next_entry;
}
}
if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
else if (stk->dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
pdev->conf.Vpp = stk->dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;
if ((cfg->io.nwin > 0) || (stk->dflt.io.nwin > 0)) {
cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &stk->dflt.io;
pdev->conf.ConfigIndex = cfg->index;
pdev->io.BasePort1 = io->win[0].base;
pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
if (!(io->flags & CISTPL_IO_16BIT))
pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
if (io->nwin == 2) {
pdev->io.NumPorts1 = 8;
pdev->io.BasePort2 = io->win[1].base;
pdev->io.NumPorts2 = (is_kme) ? 2 : 1;
if (pcmcia_request_io(pdev, &pdev->io) != 0)
goto next_entry;
io_base = pdev->io.BasePort1;
ctl_base = pdev->io.BasePort2;
} else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
pdev->io.NumPorts1 = io->win[0].len;
pdev->io.NumPorts2 = 0;
if (pcmcia_request_io(pdev, &pdev->io) != 0)
goto next_entry;
io_base = pdev->io.BasePort1;
ctl_base = pdev->io.BasePort1 + 0x0e;
} else goto next_entry;
/* If we've got this far, we're done */
break;
}
next_entry:
if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
memcpy(&stk->dflt, cfg, sizeof(stk->dflt));
if (pass) {
CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(pdev, &tuple));
} else if (pcmcia_get_next_tuple(pdev, &tuple) != 0) {
CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple));
memset(&stk->dflt, 0, sizeof(stk->dflt));
pass++;
}
}
CS_CHECK(RequestIRQ, pcmcia_request_irq(pdev, &pdev->irq));
CS_CHECK(RequestConfiguration, pcmcia_request_configuration(pdev, &pdev->conf));
/* Success. Disable the IRQ nIEN line, do quirks */
outb(0x02, ctl_base);
if (is_kme)
outb(0x81, ctl_base + 0x01);
/* FIXME: Could be more ports at base + 0x10 but we only deal with
one right now */
if (pdev->io.NumPorts1 >= 0x20)
printk(KERN_WARNING DRV_NAME ": second channel not yet supported.\n");
/*
* Having done the PCMCIA plumbing the ATA side is relatively
* sane.
*/
memset(&ae, 0, sizeof(struct ata_probe_ent));
INIT_LIST_HEAD(&ae.node);
ae.dev = &pdev->dev;
ae.port_ops = &pcmcia_port_ops;
ae.sht = &pcmcia_sht;
ae.n_ports = 1;
ae.pio_mask = 1; /* ISA so PIO 0 cycles */
ae.irq = pdev->irq.AssignedIRQ;
ae.irq_flags = SA_SHIRQ;
ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
ae.port[0].cmd_addr = io_base;
ae.port[0].altstatus_addr = ctl_base;
ae.port[0].ctl_addr = ctl_base;
ata_std_ports(&ae.port[0]);
if (ata_device_add(&ae) == 0)
goto failed;
info->ndev = 1;
kfree(stk);
return 0;
cs_failed:
cs_error(pdev, last_fn, last_ret);
failed:
kfree(stk);
info->ndev = 0;
pcmcia_disable_device(pdev);
out1:
kfree(info);
return ret;
}
/**
* pcmcia_remove_one - unplug an pcmcia interface
* @pdev: pcmcia device
*
* A PCMCIA ATA device has been unplugged. Perform the needed
* cleanup. Also called on module unload for any active devices.
*/
static void pcmcia_remove_one(struct pcmcia_device *pdev)
{
struct ata_pcmcia_info *info = pdev->priv;
struct device *dev = &pdev->dev;
if (info != NULL) {
/* If we have attached the device to the ATA layer, detach it */
if (info->ndev) {
struct ata_host *host = dev_get_drvdata(dev);
ata_host_remove(host);
dev_set_drvdata(dev, NULL);
}
info->ndev = 0;
pdev->priv = NULL;
}
pcmcia_disable_device(pdev);
kfree(info);
}
static struct pcmcia_device_id pcmcia_devices[] = {
PCMCIA_DEVICE_FUNC_ID(4),
PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */
PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401),
PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */
PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */
PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */
PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar */
PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591),
PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b),
PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b),
PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
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", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
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);
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