[mirror_ubuntu-jammy-kernel.git] / drivers / ata / pata_pcmcia.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *   pata_pcmcia.c - PCMCIA PATA controller driver.
 *   Copyright 2005-2006 Red Hat Inc, all rights reserved.
 *   PCMCIA ident update Copyright 2006 Marcin Juszkiewicz
 *						<openembedded@hrw.one.pl>
 *
 *   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/blkdev.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <scsi/scsi_host.h>
#include <linux/ata.h>
#include <linux/libata.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 "0.3.5"

/**
 *	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_warn(slave, "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
 *	@qc: queued command
 *	@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_queued_cmd *qc,
				unsigned char *buf, unsigned int buflen, int rw)
{
	struct ata_port *ap = qc->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;
}

/**
 *	pcmcia_8bit_drain_fifo - Stock FIFO drain logic for SFF controllers
 *	@qc: command
 *
 *	Drain the FIFO and device of any stuck data following a command
 *	failing to complete. In some cases this is necessary before a
 *	reset will recover the device.
 *
 */

static void pcmcia_8bit_drain_fifo(struct ata_queued_cmd *qc)
{
	int count;
	struct ata_port *ap;

	/* We only need to flush incoming data when a command was running */
	if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE)
		return;

	ap = qc->ap;

	/* Drain up to 64K of data before we give up this recovery method */
	for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ)
							&& count++ < 65536;)
		ioread8(ap->ioaddr.data_addr);

	if (count)
		ata_port_warn(ap, "drained %d bytes to clear DRQ\n", count);

}

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_xfer32,
	.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,
	.sff_drain_fifo	= pcmcia_8bit_drain_fifo,
};


static int pcmcia_check_one_config(struct pcmcia_device *pdev, void *priv_data)
{
	int *is_kme = priv_data;

	if ((pdev->resource[0]->flags & IO_DATA_PATH_WIDTH)
	    != IO_DATA_PATH_WIDTH_8) {
		pdev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
		pdev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
	}
	pdev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
	pdev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;

	if (pdev->resource[1]->end) {
		pdev->resource[0]->end = 8;
		pdev->resource[1]->end = (*is_kme) ? 2 : 1;
	} else {
		if (pdev->resource[0]->end < 16)
			return -ENODEV;
	}

	return pcmcia_request_io(pdev);
}

/**
 *	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;
	int 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;

	/* Set up attributes in order to probe card and get resources */
	pdev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO |
		CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC;

	/* 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)));

	if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme)) {
		pdev->config_flags &= ~CONF_AUTO_CHECK_VCC;
		if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme))
			goto failed; /* No suitable config found */
	}
	io_base = pdev->resource[0]->start;
	if (pdev->resource[1]->end)
		ctl_base = pdev->resource[1]->start;
	else
		ctl_base = pdev->resource[0]->start + 0x0e;

	if (!pdev->irq)
		goto failed;

	ret = pcmcia_enable_device(pdev);
	if (ret)
		goto failed;

	/* 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 (resource_size(pdev->resource[0]) >= 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 = ATA_PIO0;	/* 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, ata_sff_interrupt,
				IRQF_SHARED, &pcmcia_sht);
	if (ret)
		goto failed;

	pdev->priv = host;
	return 0;

failed:
	pcmcia_disable_device(pdev);
	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_host *host = pdev->priv;

	if (host)
		ata_host_detach(host);

	pcmcia_disable_device(pdev);
}

static const 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(0x004f, 0x0000),	/* Kingston */
	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(0x00f1, 0x0101),	/* SanDisk High (>8G) CFA */
	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-ROM", 0x46d7db81, 0x66536591),
	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("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
	PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
	PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x55d5bffb),
	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10),
	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("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x7558f133),
	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47),
	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_PROD_ID2("Flash Card", 0x5a362506),
	PCMCIA_DEVICE_NULL,
};

MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices);

static struct pcmcia_driver pcmcia_driver = {
	.owner		= THIS_MODULE,
	.name		= DRV_NAME,
	.id_table	= pcmcia_devices,
	.probe		= pcmcia_init_one,
	.remove		= pcmcia_remove_one,
};
module_pcmcia_driver(pcmcia_driver);

MODULE_AUTHOR("Alan Cox");
MODULE_DESCRIPTION("low-level driver for PCMCIA ATA");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
Commit	Line	Data
c82ee6d3	1	// SPDX-License-Identifier: GPL-2.0-or-later
669a5db4 JG	2	/*
669a5db4 JG	3	* pata_pcmcia.c - PCMCIA PATA controller driver.
ab771630	4	* Copyright 2005-2006 Red Hat Inc, all rights reserved.
85cd7251	5	* PCMCIA ident update Copyright 2006 Marcin Juszkiewicz
669a5db4 JG	6	* <openembedded@hrw.one.pl>
669a5db4 JG	7	*
669a5db4 JG	8	* Heavily based upon ide-cs.c
	9	* The initial developer of the original code is David A. Hinds
	10	* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
	11	* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
	12	*/
	13
	14	#include <linux/kernel.h>
	15	#include <linux/module.h>
669a5db4 JG	16	#include <linux/blkdev.h>
669a5db4 JG	17	#include <linux/delay.h>
5a0e3ad6	18	#include <linux/slab.h>
669a5db4 JG	19	#include <scsi/scsi_host.h>
	20	#include <linux/ata.h>
	21	#include <linux/libata.h>
	22
669a5db4 JG	23	#include <pcmcia/cistpl.h>
	24	#include <pcmcia/ds.h>
	25	#include <pcmcia/cisreg.h>
	26	#include <pcmcia/ciscode.h>
	27
	28
	29	#define DRV_NAME "pata_pcmcia"
3d47aa8e	30	#define DRV_VERSION "0.3.5"
669a5db4	31
4dc5200d AC	32	/**
4dc5200d AC	33	* pcmcia_set_mode - PCMCIA specific mode setup
0260731f	34	* @link: link
4dc5200d AC	35	* @r_failed_dev: Return pointer for failed device
	36	*
	37	* Perform the tuning and setup of the devices and timings, which
	38	* for PCMCIA is the same as any other controller. We wrap it however
	39	* as we need to spot hardware with incorrect or missing master/slave
	40	* decode, which alas is embarrassingly common in the PC world
	41	*/
	42
0260731f	43	static int pcmcia_set_mode(struct ata_link link, struct ata_device *r_failed_dev)
4dc5200d	44	{
0260731f TH	45	struct ata_device *master = &link->device[0];
0260731f TH	46	struct ata_device *slave = &link->device[1];
4dc5200d AC	47
4dc5200d AC	48	if (!ata_dev_enabled(master) \|\| !ata_dev_enabled(slave))
0260731f	49	return ata_do_set_mode(link, r_failed_dev);
4dc5200d AC	50
4dc5200d AC	51	if (memcmp(master->id + ATA_ID_FW_REV, slave->id + ATA_ID_FW_REV,
5796d1c4	52	ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0) {
4dc5200d AC	53	/* Suspicious match, but could be two cards from
	54	the same vendor - check serial */
	55	if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO,
	56	ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) {
a9a79dfe	57	ata_dev_warn(slave, "is a ghost device, ignoring\n");
4dc5200d AC	58	ata_dev_disable(slave);
	59	}
	60	}
0260731f	61	return ata_do_set_mode(link, r_failed_dev);
4dc5200d AC	62	}
4dc5200d AC	63
a5df2eab AC	64	/**
	65	* pcmcia_set_mode_8bit - PCMCIA specific mode setup
	66	* @link: link
	67	* @r_failed_dev: Return pointer for failed device
	68	*
	69	* For the simple emulated 8bit stuff the less we do the better.
	70	*/
	71
	72	static int pcmcia_set_mode_8bit(struct ata_link *link,
	73	struct ata_device **r_failed_dev)
	74	{
	75	return 0;
	76	}
	77
	78	/**
	79	* ata_data_xfer_8bit - Transfer data by 8bit PIO
989e0aac	80	* @qc: queued command
a5df2eab AC	81	* @buf: data buffer
a5df2eab AC	82	* @buflen: buffer length
f885521f	83	* @rw: read/write
a5df2eab AC	84	*
	85	* Transfer data from/to the device data register by 8 bit PIO.
	86	*
	87	* LOCKING:
	88	* Inherited from caller.
	89	*/
	90
989e0aac	91	static unsigned int ata_data_xfer_8bit(struct ata_queued_cmd *qc,
f885521f	92	unsigned char *buf, unsigned int buflen, int rw)
a5df2eab	93	{
989e0aac	94	struct ata_port *ap = qc->dev->link->ap;
f885521f TH	95
f885521f TH	96	if (rw == READ)
a5df2eab	97	ioread8_rep(ap->ioaddr.data_addr, buf, buflen);
f885521f TH	98	else
	99	iowrite8_rep(ap->ioaddr.data_addr, buf, buflen);
	100
	101	return buflen;
a5df2eab AC	102	}
a5df2eab AC	103
3d47aa8e AC	104	/**
	105	* pcmcia_8bit_drain_fifo - Stock FIFO drain logic for SFF controllers
	106	* @qc: command
	107	*
	108	* Drain the FIFO and device of any stuck data following a command
3ad2f3fb	109	* failing to complete. In some cases this is necessary before a
3d47aa8e AC	110	* reset will recover the device.
	111	*
	112	*/
4fca377f	113
9ffc5da5	114	static void pcmcia_8bit_drain_fifo(struct ata_queued_cmd *qc)
3d47aa8e AC	115	{
	116	int count;
	117	struct ata_port *ap;
	118
	119	/* We only need to flush incoming data when a command was running */
	120	if (qc == NULL \|\| qc->dma_dir == DMA_TO_DEVICE)
	121	return;
	122
	123	ap = qc->ap;
	124
	125	/* Drain up to 64K of data before we give up this recovery method */
	126	for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ)
	127	&& count++ < 65536;)
	128	ioread8(ap->ioaddr.data_addr);
	129
	130	if (count)
a9a79dfe	131	ata_port_warn(ap, "drained %d bytes to clear DRQ\n", count);
3d47aa8e AC	132
3d47aa8e AC	133	}
a5df2eab	134
669a5db4	135	static struct scsi_host_template pcmcia_sht = {
68d1d07b	136	ATA_PIO_SHT(DRV_NAME),
669a5db4 JG	137	};
	138
	139	static struct ata_port_operations pcmcia_port_ops = {
029cfd6b	140	.inherits = &ata_sff_port_ops,
23ebda2f	141	.sff_data_xfer = ata_sff_data_xfer32,
029cfd6b TH	142	.cable_detect = ata_cable_40wire,
029cfd6b TH	143	.set_mode = pcmcia_set_mode,
669a5db4 JG	144	};
669a5db4 JG	145
a5df2eab	146	static struct ata_port_operations pcmcia_8bit_port_ops = {
029cfd6b	147	.inherits = &ata_sff_port_ops,
5682ed33	148	.sff_data_xfer = ata_data_xfer_8bit,
029cfd6b TH	149	.cable_detect = ata_cable_40wire,
029cfd6b TH	150	.set_mode = pcmcia_set_mode_8bit,
8244cd05	151	.sff_drain_fifo = pcmcia_8bit_drain_fifo,
a5df2eab AC	152	};
a5df2eab AC	153
0bac660a	154
00990e7c	155	static int pcmcia_check_one_config(struct pcmcia_device pdev, void priv_data)
0bac660a	156	{
00990e7c DB	157	int *is_kme = priv_data;
00990e7c DB	158
b08f5bc4 JL	159	if ((pdev->resource[0]->flags & IO_DATA_PATH_WIDTH)
b08f5bc4 JL	160	!= IO_DATA_PATH_WIDTH_8) {
00990e7c DB	161	pdev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
	162	pdev->resource[0]->flags \|= IO_DATA_PATH_WIDTH_AUTO;
	163	}
	164	pdev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
	165	pdev->resource[1]->flags \|= IO_DATA_PATH_WIDTH_8;
	166
	167	if (pdev->resource[1]->end) {
	168	pdev->resource[0]->end = 8;
	169	pdev->resource[1]->end = (*is_kme) ? 2 : 1;
	170	} else {
	171	if (pdev->resource[0]->end < 16)
8e2fc39d	172	return -ENODEV;
0bac660a	173	}
00990e7c DB	174
00990e7c DB	175	return pcmcia_request_io(pdev);
0bac660a DB	176	}
0bac660a DB	177
669a5db4 JG	178	/**
	179	* pcmcia_init_one - attach a PCMCIA interface
	180	* @pdev: pcmcia device
	181	*
	182	* Register a PCMCIA IDE interface. Such interfaces are PIO 0 and
	183	* shared IRQ.
	184	*/
	185
	186	static int pcmcia_init_one(struct pcmcia_device *pdev)
	187	{
5d728824 TH	188	struct ata_host *host;
5d728824 TH	189	struct ata_port *ap;
444486a5	190	int is_kme = 0, ret = -ENOMEM, p;
669a5db4	191	unsigned long io_base, ctl_base;
0d5ff566	192	void __iomem io_addr, ctl_addr;
d7b17450	193	int n_ports = 1;
a5df2eab AC	194	struct ata_port_operations *ops = &pcmcia_port_ops;
a5df2eab AC	195
669a5db4	196	/* Set up attributes in order to probe card and get resources */
00990e7c DB	197	pdev->config_flags \|= CONF_ENABLE_IRQ \| CONF_AUTO_SET_IO \|
00990e7c DB	198	CONF_AUTO_SET_VPP \| CONF_AUTO_CHECK_VCC;
669a5db4	199
669a5db4 JG	200	/* See if we have a manufacturer identifier. Use it to set is_kme for
669a5db4 JG	201	vendor quirks */
efd50585 DB	202	is_kme = ((pdev->manf_id == MANFID_KME) &&
	203	((pdev->card_id == PRODID_KME_KXLC005_A) \|\|
	204	(pdev->card_id == PRODID_KME_KXLC005_B)));
669a5db4	205
00990e7c	206	if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme)) {
440eed43	207	pdev->config_flags &= ~CONF_AUTO_CHECK_VCC;
00990e7c	208	if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme))
0bac660a	209	goto failed; /* No suitable config found */
669a5db4	210	}
9a017a91	211	io_base = pdev->resource[0]->start;
00990e7c DB	212	if (pdev->resource[1]->end)
	213	ctl_base = pdev->resource[1]->start;
	214	else
	215	ctl_base = pdev->resource[0]->start + 0x0e;
	216
eb14120f	217	if (!pdev->irq)
444486a5 DB	218	goto failed;
444486a5 DB	219
1ac71e5a	220	ret = pcmcia_enable_device(pdev);
444486a5 DB	221	if (ret)
444486a5 DB	222	goto failed;
669a5db4	223
0d5ff566 TH	224	/* iomap */
	225	ret = -ENOMEM;
	226	io_addr = devm_ioport_map(&pdev->dev, io_base, 8);
	227	ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1);
	228	if (!io_addr \|\| !ctl_addr)
	229	goto failed;
	230
669a5db4	231	/* Success. Disable the IRQ nIEN line, do quirks */
0d5ff566	232	iowrite8(0x02, ctl_addr);
669a5db4	233	if (is_kme)
0d5ff566	234	iowrite8(0x81, ctl_addr + 0x01);
669a5db4 JG	235
	236	/* FIXME: Could be more ports at base + 0x10 but we only deal with
	237	one right now */
9a017a91	238	if (resource_size(pdev->resource[0]) >= 0x20)
d7b17450	239	n_ports = 2;
669a5db4	240
a5df2eab AC	241	if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620)
a5df2eab AC	242	ops = &pcmcia_8bit_port_ops;
669a5db4	243	/*
5796d1c4 JG	244	* Having done the PCMCIA plumbing the ATA side is relatively
5796d1c4 JG	245	* sane.
669a5db4	246	*/
5d728824	247	ret = -ENOMEM;
d7b17450	248	host = ata_host_alloc(&pdev->dev, n_ports);
5d728824 TH	249	if (!host)
5d728824 TH	250	goto failed;
5d728824	251
d7b17450 AC	252	for (p = 0; p < n_ports; p++) {
d7b17450 AC	253	ap = host->ports[p];
5d728824	254
d7b17450	255	ap->ops = ops;
14bdef98	256	ap->pio_mask = ATA_PIO0; /* ISA so PIO 0 cycles */
d7b17450 AC	257	ap->flags \|= ATA_FLAG_SLAVE_POSS;
	258	ap->ioaddr.cmd_addr = io_addr + 0x10 * p;
	259	ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p;
	260	ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p;
9363c382	261	ata_sff_std_ports(&ap->ioaddr);
d7b17450 AC	262
	263	ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base);
	264	}
cbcdd875	265
5d728824	266	/* activate */
eb14120f	267	ret = ata_host_activate(host, pdev->irq, ata_sff_interrupt,
5d728824 TH	268	IRQF_SHARED, &pcmcia_sht);
5d728824 TH	269	if (ret)
669a5db4 JG	270	goto failed;
669a5db4 JG	271
a371b37c	272	pdev->priv = host;
669a5db4 JG	273	return 0;
669a5db4 JG	274
669a5db4	275	failed:
669a5db4	276	pcmcia_disable_device(pdev);
669a5db4 JG	277	return ret;
	278	}
	279
	280	/**
	281	* pcmcia_remove_one - unplug an pcmcia interface
	282	* @pdev: pcmcia device
	283	*
	284	* A PCMCIA ATA device has been unplugged. Perform the needed
	285	* cleanup. Also called on module unload for any active devices.
	286	*/
	287
	288	static void pcmcia_remove_one(struct pcmcia_device *pdev)
	289	{
a371b37c DB	290	struct ata_host *host = pdev->priv;
	291
	292	if (host)
	293	ata_host_detach(host);
	294
669a5db4	295	pcmcia_disable_device(pdev);
669a5db4 JG	296	}
669a5db4 JG	297
25f8f54f	298	static const struct pcmcia_device_id pcmcia_devices[] = {
669a5db4	299	PCMCIA_DEVICE_FUNC_ID(4),
77ec15cc	300	PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */
669a5db4	301	PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */
ed2a6e4a MD	302	PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */
ed2a6e4a MD	303	PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */
669a5db4	304	PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
7871e74a	305	PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
ed2a6e4a	306	PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */
795659ef	307	PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000), /* Kingston */
a5df2eab	308	PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */
669a5db4 JG	309	PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */
	310	PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
	311	PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */
73e4eab0	312	PCMCIA_DEVICE_MANF_CARD(0x00f1, 0x0101), /* SanDisk High (>8G) CFA */
5796d1c4	313	PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */
669a5db4	314	PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
ed2a6e4a MD	315	PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */
ed2a6e4a MD	316	PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */
669a5db4 JG	317	PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
	318	PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
	319	PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
	320	PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
	321	PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
044dcc82	322	PCMCIA_DEVICE_PROD_ID12("CNF ", "CD-ROM", 0x46d7db81, 0x66536591),
669a5db4 JG	323	PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
	324	PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
	325	PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
	326	PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
	327	PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591),
	328	PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
	329	PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
	330	PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
	331	PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
795659ef	332	PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
669a5db4 JG	333	PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
669a5db4 JG	334	PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
85ea2d3f	335	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x55d5bffb),
f25798ed	336	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10),
363f7e42	337	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
669a5db4 JG	338	PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b),
	339	PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
	340	PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
	341	PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b),
74e23386	342	PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee),
669a5db4 JG	343	PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
	344	PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
	345	PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
	346	PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
	347	PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
	348	PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),
	349	PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),
	350	PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),
	351	PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
a0a00cbf	352	PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443),
a17bf220	353	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32),
bf4e1829	354	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
48aaae7a	355	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
a0a00cbf	356	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
85ea2d3f	357	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x7558f133),
f25798ed	358	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47),
669a5db4	359	PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
0517793f	360	PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
669a5db4 JG	361	PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
	362	PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
	363	PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
a12d6c9a	364	PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506),
669a5db4 JG	365	PCMCIA_DEVICE_NULL,
	366	};
	367
	368	MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices);
	369
	370	static struct pcmcia_driver pcmcia_driver = {
	371	.owner = THIS_MODULE,
2e9b981a	372	.name = DRV_NAME,
669a5db4 JG	373	.id_table = pcmcia_devices,
	374	.probe = pcmcia_init_one,
	375	.remove = pcmcia_remove_one,
	376	};
46060485	377	module_pcmcia_driver(pcmcia_driver);
669a5db4 JG	378
	379	MODULE_AUTHOR("Alan Cox");
	380	MODULE_DESCRIPTION("low-level driver for PCMCIA ATA");
	381	MODULE_LICENSE("GPL");
	382	MODULE_VERSION(DRV_VERSION);