[deliverable/linux.git] / drivers / ata / pata_pcmcia.c

/*
 *   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 "0.3.3"

/*
 *	Private data structure to glue stuff together
 */

struct ata_pcmcia_info {
	struct pcmcia_device *pdev;
	int		ndev;
	dev_node_t	node;
};

/**
 *	pcmcia_set_mode	-	PCMCIA specific mode setup
 *	@link: link
 *	@r_failed_dev: Return pointer for failed device
 *
 *	Perform the tuning and setup of the devices and timings, which
 *	for PCMCIA is the same as any other controller. We wrap it however
 *	as we need to spot hardware with incorrect or missing master/slave
 *	decode, which alas is embarrassingly common in the PC world
 */

static int pcmcia_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
{
	struct ata_device *master = &link->device[0];
	struct ata_device *slave = &link->device[1];

	if (!ata_dev_enabled(master) || !ata_dev_enabled(slave))
		return ata_do_set_mode(link, r_failed_dev);

	if (memcmp(master->id + ATA_ID_FW_REV,  slave->id + ATA_ID_FW_REV,
			   ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0) {
		/* Suspicious match, but could be two cards from
		   the same vendor - check serial */
		if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO,
			   ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) {
			ata_dev_printk(slave, KERN_WARNING, "is a ghost device, ignoring.\n");
			ata_dev_disable(slave);
		}
	}
	return ata_do_set_mode(link, r_failed_dev);
}

/**
 *	pcmcia_set_mode_8bit	-	PCMCIA specific mode setup
 *	@link: link
 *	@r_failed_dev: Return pointer for failed device
 *
 *	For the simple emulated 8bit stuff the less we do the better.
 */

static int pcmcia_set_mode_8bit(struct ata_link *link,
				struct ata_device **r_failed_dev)
{
	return 0;
}

/**
 *	ata_data_xfer_8bit	 -	Transfer data by 8bit PIO
 *	@dev: device to target
 *	@buf: data buffer
 *	@buflen: buffer length
 *	@rw: read/write
 *
 *	Transfer data from/to the device data register by 8 bit PIO.
 *
 *	LOCKING:
 *	Inherited from caller.
 */

static unsigned int ata_data_xfer_8bit(struct ata_device *dev,
				unsigned char *buf, unsigned int buflen, int rw)
{
	struct ata_port *ap = dev->link->ap;

	if (rw == READ)
		ioread8_rep(ap->ioaddr.data_addr, buf, buflen);
	else
		iowrite8_rep(ap->ioaddr.data_addr, buf, buflen);

	return buflen;
}


static struct scsi_host_template pcmcia_sht = {
	ATA_PIO_SHT(DRV_NAME),
};

static struct ata_port_operations pcmcia_port_ops = {
	.inherits	= &ata_sff_port_ops,
	.sff_data_xfer	= ata_sff_data_xfer_noirq,
	.cable_detect	= ata_cable_40wire,
	.set_mode	= pcmcia_set_mode,
};

static struct ata_port_operations pcmcia_8bit_port_ops = {
	.inherits	= &ata_sff_port_ops,
	.sff_data_xfer	= ata_data_xfer_8bit,
	.cable_detect	= ata_cable_40wire,
	.set_mode	= pcmcia_set_mode_8bit,
};

#define CS_CHECK(fn, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)


struct pcmcia_config_check {
	config_info_t conf;
	unsigned long ctl_base;
	int skip_vcc;
	int is_kme;
};

static int pcmcia_check_one_config(struct pcmcia_device *pdev,
				   cistpl_cftable_entry_t *cfg,
				   cistpl_cftable_entry_t *dflt,
				   void *priv_data)
{
	struct pcmcia_config_check *stk = priv_data;

	/* Check for matching Vcc, unless we're desperate */
	if (!stk->skip_vcc) {
		if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
			if (stk->conf.Vcc !=
			    cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
				return -ENODEV;
		} else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) {
			if (stk->conf.Vcc !=
			    dflt->vcc.param[CISTPL_POWER_VNOM] / 10000)
				return -ENODEV;
		}
	}

	if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
		pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
	else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM))
		pdev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000;

	if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
		cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
		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 = (stk->is_kme) ? 2 : 1;
			if (pcmcia_request_io(pdev, &pdev->io) != 0)
				return -ENODEV;
			stk->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)
				return -ENODEV;
			stk->ctl_base = pdev->io.BasePort1 + 0x0e;
		} else
			return -ENODEV;
		/* If we've got this far, we're done */
		return 0;
	}
	return -ENODEV;
}

/**
 *	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_host *host;
	struct ata_port *ap;
	struct ata_pcmcia_info *info;
	struct pcmcia_config_check *stk = NULL;
	int last_ret = 0, last_fn = 0, is_kme = 0, ret = -ENOMEM, p;
	unsigned long io_base, ctl_base;
	void __iomem *io_addr, *ctl_addr;
	int n_ports = 1;
	struct ata_port_operations *ops = &pcmcia_port_ops;

	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;

	/* See if we have a manufacturer identifier. Use it to set is_kme for
	   vendor quirks */
	is_kme = ((pdev->manf_id == MANFID_KME) &&
		  ((pdev->card_id == PRODID_KME_KXLC005_A) ||
		   (pdev->card_id == PRODID_KME_KXLC005_B)));

	/* Allocate resoure probing structures */

	stk = kzalloc(sizeof(*stk), GFP_KERNEL);
	if (!stk)
		goto out1;
	stk->is_kme = is_kme;

	/* Not sure if this is right... look up the current Vcc */
	CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(pdev, &stk->conf));
	stk->skip_vcc = io_base = ctl_base = 0;
	if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk)) {
		stk->skip_vcc = 1;
		if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk))
			goto failed; /* No suitable config found */
	}
	io_base = pdev->io.BasePort1;
	ctl_base = stk->ctl_base;
	CS_CHECK(RequestIRQ, pcmcia_request_irq(pdev, &pdev->irq));
	CS_CHECK(RequestConfiguration, pcmcia_request_configuration(pdev, &pdev->conf));

	/* iomap */
	ret = -ENOMEM;
	io_addr = devm_ioport_map(&pdev->dev, io_base, 8);
	ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1);
	if (!io_addr || !ctl_addr)
		goto failed;

	/* Success. Disable the IRQ nIEN line, do quirks */
	iowrite8(0x02, ctl_addr);
	if (is_kme)
		iowrite8(0x81, ctl_addr + 0x01);

	/* FIXME: Could be more ports at base + 0x10 but we only deal with
	   one right now */
	if (pdev->io.NumPorts1 >= 0x20)
		n_ports = 2;

	if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620)
		ops = &pcmcia_8bit_port_ops;
	/*
	 *	Having done the PCMCIA plumbing the ATA side is relatively
	 *	sane.
	 */
	ret = -ENOMEM;
	host = ata_host_alloc(&pdev->dev, n_ports);
	if (!host)
		goto failed;

	for (p = 0; p < n_ports; p++) {
		ap = host->ports[p];

		ap->ops = ops;
		ap->pio_mask = 1;		/* ISA so PIO 0 cycles */
		ap->flags |= ATA_FLAG_SLAVE_POSS;
		ap->ioaddr.cmd_addr = io_addr + 0x10 * p;
		ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p;
		ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p;
		ata_sff_std_ports(&ap->ioaddr);

		ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base);
	}

	/* activate */
	ret = ata_host_activate(host, pdev->irq.AssignedIRQ, ata_sff_interrupt,
				IRQF_SHARED, &pcmcia_sht);
	if (ret)
		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_detach(host);
		}
		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(0x0000, 0x0000),	/* Corsair */
	PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000),	/* Hitachi */
	PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000),	/* I-O Data CFA */
	PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001),	/* Mitsubishi CFA */
	PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
	PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
	PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401),	/* SanDisk CFA */
	PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), 	/* TI emulated */
	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, 0x0100),	/* Viking CFA */
	PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200),	/* Lexar, Viking CFA */
	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("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
	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("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
	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", "CF300", 0x7ed2ad87, 0x7e9e78ee),
	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", "TS1GCF45", 0x709b1bf1, 0xf68b6f32),
	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
	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);
Commit	Line	Data
669a5db4 JG	1	/*
	2	* pata_pcmcia.c - PCMCIA PATA controller driver.
	3	* Copyright 2005-2006 Red Hat Inc <alan@redhat.com>, all rights reserved.
85cd7251	4	* PCMCIA ident update Copyright 2006 Marcin Juszkiewicz
669a5db4 JG	5	* <openembedded@hrw.one.pl>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2, or (at your option)
	10	* any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; see the file COPYING. If not, write to
	19	* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
	20	*
	21	* Heavily based upon ide-cs.c
	22	* The initial developer of the original code is David A. Hinds
	23	* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
	24	* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
	25	*/
	26
	27	#include <linux/kernel.h>
	28	#include <linux/module.h>
	29	#include <linux/init.h>
	30	#include <linux/blkdev.h>
	31	#include <linux/delay.h>
	32	#include <scsi/scsi_host.h>
	33	#include <linux/ata.h>
	34	#include <linux/libata.h>
	35
	36	#include <pcmcia/cs_types.h>
	37	#include <pcmcia/cs.h>
	38	#include <pcmcia/cistpl.h>
	39	#include <pcmcia/ds.h>
	40	#include <pcmcia/cisreg.h>
	41	#include <pcmcia/ciscode.h>
	42
	43
	44	#define DRV_NAME "pata_pcmcia"
d7b17450	45	#define DRV_VERSION "0.3.3"
669a5db4 JG	46
	47	/*
	48	* Private data structure to glue stuff together
	49	*/
	50
	51	struct ata_pcmcia_info {
	52	struct pcmcia_device *pdev;
	53	int ndev;
	54	dev_node_t node;
	55	};
	56
4dc5200d A	57	/**
4dc5200d A	58	* pcmcia_set_mode - PCMCIA specific mode setup
0260731f	59	* @link: link
4dc5200d A	60	* @r_failed_dev: Return pointer for failed device
	61	*
	62	* Perform the tuning and setup of the devices and timings, which
	63	* for PCMCIA is the same as any other controller. We wrap it however
	64	* as we need to spot hardware with incorrect or missing master/slave
	65	* decode, which alas is embarrassingly common in the PC world
	66	*/
	67
0260731f	68	static int pcmcia_set_mode(struct ata_link link, struct ata_device *r_failed_dev)
4dc5200d	69	{
0260731f TH	70	struct ata_device *master = &link->device[0];
0260731f TH	71	struct ata_device *slave = &link->device[1];
4dc5200d A	72
4dc5200d A	73	if (!ata_dev_enabled(master) \|\| !ata_dev_enabled(slave))
0260731f	74	return ata_do_set_mode(link, r_failed_dev);
4dc5200d A	75
4dc5200d A	76	if (memcmp(master->id + ATA_ID_FW_REV, slave->id + ATA_ID_FW_REV,
5796d1c4	77	ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0) {
4dc5200d A	78	/* Suspicious match, but could be two cards from
	79	the same vendor - check serial */
	80	if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO,
	81	ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) {
	82	ata_dev_printk(slave, KERN_WARNING, "is a ghost device, ignoring.\n");
	83	ata_dev_disable(slave);
	84	}
	85	}
0260731f	86	return ata_do_set_mode(link, r_failed_dev);
4dc5200d A	87	}
4dc5200d A	88
a5df2eab AC	89	/**
	90	* pcmcia_set_mode_8bit - PCMCIA specific mode setup
	91	* @link: link
	92	* @r_failed_dev: Return pointer for failed device
	93	*
	94	* For the simple emulated 8bit stuff the less we do the better.
	95	*/
	96
	97	static int pcmcia_set_mode_8bit(struct ata_link *link,
	98	struct ata_device **r_failed_dev)
	99	{
	100	return 0;
	101	}
	102
	103	/**
	104	* ata_data_xfer_8bit - Transfer data by 8bit PIO
f885521f	105	* @dev: device to target
a5df2eab AC	106	* @buf: data buffer
a5df2eab AC	107	* @buflen: buffer length
f885521f	108	* @rw: read/write
a5df2eab AC	109	*
	110	* Transfer data from/to the device data register by 8 bit PIO.
	111	*
	112	* LOCKING:
	113	* Inherited from caller.
	114	*/
	115
f885521f TH	116	static unsigned int ata_data_xfer_8bit(struct ata_device *dev,
f885521f TH	117	unsigned char *buf, unsigned int buflen, int rw)
a5df2eab	118	{
f885521f TH	119	struct ata_port *ap = dev->link->ap;
	120
	121	if (rw == READ)
a5df2eab	122	ioread8_rep(ap->ioaddr.data_addr, buf, buflen);
f885521f TH	123	else
	124	iowrite8_rep(ap->ioaddr.data_addr, buf, buflen);
	125
	126	return buflen;
a5df2eab AC	127	}
	128
	129
669a5db4	130	static struct scsi_host_template pcmcia_sht = {
68d1d07b	131	ATA_PIO_SHT(DRV_NAME),
669a5db4 JG	132	};
	133
	134	static struct ata_port_operations pcmcia_port_ops = {
029cfd6b	135	.inherits = &ata_sff_port_ops,
5682ed33	136	.sff_data_xfer = ata_sff_data_xfer_noirq,
029cfd6b TH	137	.cable_detect = ata_cable_40wire,
029cfd6b TH	138	.set_mode = pcmcia_set_mode,
669a5db4 JG	139	};
669a5db4 JG	140
a5df2eab	141	static struct ata_port_operations pcmcia_8bit_port_ops = {
029cfd6b	142	.inherits = &ata_sff_port_ops,
5682ed33	143	.sff_data_xfer = ata_data_xfer_8bit,
029cfd6b TH	144	.cable_detect = ata_cable_40wire,
029cfd6b TH	145	.set_mode = pcmcia_set_mode_8bit,
a5df2eab AC	146	};
a5df2eab AC	147
669a5db4 JG	148	#define CS_CHECK(fn, ret) \
	149	do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
	150
0bac660a DB	151
	152	struct pcmcia_config_check {
	153	config_info_t conf;
0bac660a DB	154	unsigned long ctl_base;
	155	int skip_vcc;
	156	int is_kme;
	157	};
	158
	159	static int pcmcia_check_one_config(struct pcmcia_device *pdev,
	160	cistpl_cftable_entry_t *cfg,
8e2fc39d	161	cistpl_cftable_entry_t *dflt,
0bac660a DB	162	void *priv_data)
	163	{
	164	struct pcmcia_config_check *stk = priv_data;
	165
	166	/* Check for matching Vcc, unless we're desperate */
	167	if (!stk->skip_vcc) {
	168	if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
8e2fc39d DB	169	if (stk->conf.Vcc !=
	170	cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
	171	return -ENODEV;
	172	} else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) {
	173	if (stk->conf.Vcc !=
	174	dflt->vcc.param[CISTPL_POWER_VNOM] / 10000)
	175	return -ENODEV;
0bac660a DB	176	}
	177	}
	178
	179	if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
	180	pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
8e2fc39d DB	181	else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM))
8e2fc39d DB	182	pdev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000;
0bac660a	183
8e2fc39d DB	184	if ((cfg->io.nwin > 0) \|\| (dflt->io.nwin > 0)) {
8e2fc39d DB	185	cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
0bac660a DB	186	pdev->io.BasePort1 = io->win[0].base;
	187	pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
	188	if (!(io->flags & CISTPL_IO_16BIT))
	189	pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
	190	if (io->nwin == 2) {
	191	pdev->io.NumPorts1 = 8;
	192	pdev->io.BasePort2 = io->win[1].base;
	193	pdev->io.NumPorts2 = (stk->is_kme) ? 2 : 1;
	194	if (pcmcia_request_io(pdev, &pdev->io) != 0)
8e2fc39d	195	return -ENODEV;
0bac660a DB	196	stk->ctl_base = pdev->io.BasePort2;
	197	} else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
	198	pdev->io.NumPorts1 = io->win[0].len;
	199	pdev->io.NumPorts2 = 0;
	200	if (pcmcia_request_io(pdev, &pdev->io) != 0)
8e2fc39d	201	return -ENODEV;
0bac660a DB	202	stk->ctl_base = pdev->io.BasePort1 + 0x0e;
0bac660a DB	203	} else
8e2fc39d	204	return -ENODEV;
0bac660a DB	205	/* If we've got this far, we're done */
	206	return 0;
	207	}
0bac660a DB	208	return -ENODEV;
	209	}
	210
669a5db4 JG	211	/**
	212	* pcmcia_init_one - attach a PCMCIA interface
	213	* @pdev: pcmcia device
	214	*
	215	* Register a PCMCIA IDE interface. Such interfaces are PIO 0 and
	216	* shared IRQ.
	217	*/
	218
	219	static int pcmcia_init_one(struct pcmcia_device *pdev)
	220	{
5d728824 TH	221	struct ata_host *host;
5d728824 TH	222	struct ata_port *ap;
669a5db4	223	struct ata_pcmcia_info *info;
0bac660a DB	224	struct pcmcia_config_check *stk = NULL;
0bac660a DB	225	int last_ret = 0, last_fn = 0, is_kme = 0, ret = -ENOMEM, p;
669a5db4	226	unsigned long io_base, ctl_base;
0d5ff566	227	void __iomem io_addr, ctl_addr;
d7b17450	228	int n_ports = 1;
a5df2eab AC	229	struct ata_port_operations *ops = &pcmcia_port_ops;
a5df2eab AC	230
669a5db4 JG	231	info = kzalloc(sizeof(*info), GFP_KERNEL);
	232	if (info == NULL)
	233	return -ENOMEM;
	234
	235	/* Glue stuff together. FIXME: We may be able to get rid of info with care */
	236	info->pdev = pdev;
	237	pdev->priv = info;
	238
	239	/* Set up attributes in order to probe card and get resources */
	240	pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
	241	pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
	242	pdev->io.IOAddrLines = 3;
	243	pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
	244	pdev->irq.IRQInfo1 = IRQ_LEVEL_ID;
	245	pdev->conf.Attributes = CONF_ENABLE_IRQ;
	246	pdev->conf.IntType = INT_MEMORY_AND_IO;
	247
669a5db4 JG	248	/* See if we have a manufacturer identifier. Use it to set is_kme for
669a5db4 JG	249	vendor quirks */
efd50585 DB	250	is_kme = ((pdev->manf_id == MANFID_KME) &&
	251	((pdev->card_id == PRODID_KME_KXLC005_A) \|\|
	252	(pdev->card_id == PRODID_KME_KXLC005_B)));
669a5db4	253
0bac660a	254	/* Allocate resoure probing structures */
669a5db4	255
0bac660a DB	256	stk = kzalloc(sizeof(*stk), GFP_KERNEL);
	257	if (!stk)
	258	goto out1;
	259	stk->is_kme = is_kme;
669a5db4	260
0bac660a DB	261	/* Not sure if this is right... look up the current Vcc */
	262	CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(pdev, &stk->conf));
	263	stk->skip_vcc = io_base = ctl_base = 0;
	264	if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk)) {
0bac660a DB	265	stk->skip_vcc = 1;
	266	if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk))
	267	goto failed; /* No suitable config found */
669a5db4	268	}
0bac660a DB	269	io_base = pdev->io.BasePort1;
0bac660a DB	270	ctl_base = stk->ctl_base;
669a5db4 JG	271	CS_CHECK(RequestIRQ, pcmcia_request_irq(pdev, &pdev->irq));
	272	CS_CHECK(RequestConfiguration, pcmcia_request_configuration(pdev, &pdev->conf));
	273
0d5ff566 TH	274	/* iomap */
	275	ret = -ENOMEM;
	276	io_addr = devm_ioport_map(&pdev->dev, io_base, 8);
	277	ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1);
	278	if (!io_addr \|\| !ctl_addr)
	279	goto failed;
	280
669a5db4	281	/* Success. Disable the IRQ nIEN line, do quirks */
0d5ff566	282	iowrite8(0x02, ctl_addr);
669a5db4	283	if (is_kme)
0d5ff566	284	iowrite8(0x81, ctl_addr + 0x01);
669a5db4 JG	285
	286	/* FIXME: Could be more ports at base + 0x10 but we only deal with
	287	one right now */
	288	if (pdev->io.NumPorts1 >= 0x20)
d7b17450	289	n_ports = 2;
669a5db4	290
a5df2eab AC	291	if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620)
a5df2eab AC	292	ops = &pcmcia_8bit_port_ops;
669a5db4	293	/*
5796d1c4 JG	294	* Having done the PCMCIA plumbing the ATA side is relatively
5796d1c4 JG	295	* sane.
669a5db4	296	*/
5d728824	297	ret = -ENOMEM;
d7b17450	298	host = ata_host_alloc(&pdev->dev, n_ports);
5d728824 TH	299	if (!host)
5d728824 TH	300	goto failed;
5d728824	301
d7b17450 AC	302	for (p = 0; p < n_ports; p++) {
d7b17450 AC	303	ap = host->ports[p];
5d728824	304
d7b17450 AC	305	ap->ops = ops;
	306	ap->pio_mask = 1; /* ISA so PIO 0 cycles */
	307	ap->flags \|= ATA_FLAG_SLAVE_POSS;
	308	ap->ioaddr.cmd_addr = io_addr + 0x10 * p;
	309	ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p;
	310	ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p;
9363c382	311	ata_sff_std_ports(&ap->ioaddr);
d7b17450 AC	312
	313	ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base);
	314	}
cbcdd875	315
5d728824	316	/* activate */
9363c382	317	ret = ata_host_activate(host, pdev->irq.AssignedIRQ, ata_sff_interrupt,
5d728824 TH	318	IRQF_SHARED, &pcmcia_sht);
5d728824 TH	319	if (ret)
669a5db4 JG	320	goto failed;
	321
	322	info->ndev = 1;
	323	kfree(stk);
	324	return 0;
	325
	326	cs_failed:
	327	cs_error(pdev, last_fn, last_ret);
	328	failed:
	329	kfree(stk);
	330	info->ndev = 0;
	331	pcmcia_disable_device(pdev);
	332	out1:
	333	kfree(info);
	334	return ret;
	335	}
	336
	337	/**
	338	* pcmcia_remove_one - unplug an pcmcia interface
	339	* @pdev: pcmcia device
	340	*
	341	* A PCMCIA ATA device has been unplugged. Perform the needed
	342	* cleanup. Also called on module unload for any active devices.
	343	*/
	344
	345	static void pcmcia_remove_one(struct pcmcia_device *pdev)
	346	{
	347	struct ata_pcmcia_info *info = pdev->priv;
	348	struct device *dev = &pdev->dev;
	349
	350	if (info != NULL) {
	351	/* If we have attached the device to the ATA layer, detach it */
	352	if (info->ndev) {
	353	struct ata_host *host = dev_get_drvdata(dev);
24dc5f33	354	ata_host_detach(host);
669a5db4 JG	355	}
	356	info->ndev = 0;
	357	pdev->priv = NULL;
	358	}
	359	pcmcia_disable_device(pdev);
	360	kfree(info);
	361	}
	362
	363	static struct pcmcia_device_id pcmcia_devices[] = {
	364	PCMCIA_DEVICE_FUNC_ID(4),
77ec15cc	365	PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */
669a5db4	366	PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */
ed2a6e4a MD	367	PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */
ed2a6e4a MD	368	PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */
669a5db4	369	PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
7871e74a	370	PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
ed2a6e4a	371	PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */
a5df2eab	372	PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */
669a5db4 JG	373	PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */
	374	PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
	375	PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */
5796d1c4	376	PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */
669a5db4	377	PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
ed2a6e4a MD	378	PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */
ed2a6e4a MD	379	PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */
669a5db4 JG	380	PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
	381	PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
	382	PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
	383	PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
	384	PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
	385	PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
	386	PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
	387	PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
	388	PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
	389	PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591),
	390	PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
	391	PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
77ec15cc	392	PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
669a5db4 JG	393	PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
	394	PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
	395	PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
	396	PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
363f7e42	397	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
669a5db4 JG	398	PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b),
	399	PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
	400	PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
	401	PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b),
74e23386	402	PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee),
669a5db4 JG	403	PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
	404	PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
	405	PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
	406	PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
	407	PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
	408	PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),
	409	PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),
	410	PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),
	411	PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
a0a00cbf	412	PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443),
a17bf220	413	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32),
bf4e1829	414	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
48aaae7a	415	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
a0a00cbf	416	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
669a5db4	417	PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
0517793f	418	PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
669a5db4 JG	419	PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
	420	PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
	421	PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
	422	PCMCIA_DEVICE_NULL,
	423	};
	424
	425	MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices);
	426
	427	static struct pcmcia_driver pcmcia_driver = {
	428	.owner = THIS_MODULE,
	429	.drv = {
	430	.name = DRV_NAME,
	431	},
	432	.id_table = pcmcia_devices,
	433	.probe = pcmcia_init_one,
	434	.remove = pcmcia_remove_one,
	435	};
	436
	437	static int __init pcmcia_init(void)
	438	{
	439	return pcmcia_register_driver(&pcmcia_driver);
	440	}
	441
	442	static void __exit pcmcia_exit(void)
	443	{
	444	pcmcia_unregister_driver(&pcmcia_driver);
	445	}
	446
	447	MODULE_AUTHOR("Alan Cox");
	448	MODULE_DESCRIPTION("low-level driver for PCMCIA ATA");
	449	MODULE_LICENSE("GPL");
	450	MODULE_VERSION(DRV_VERSION);
	451
	452	module_init(pcmcia_init);
	453	module_exit(pcmcia_exit);