pata_pcmcia.c 13.4 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407
/*
 *   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>
 *
 *  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 <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_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;
}

/**
 *	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_printk(ap, KERN_WARNING, "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_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,
	.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_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 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(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,
};

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);