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/drivers/ata/pata_pcmcia.c

http://github.com/mirrors/linux
C | 382 lines | 248 code | 54 blank | 80 comment | 41 complexity | 8702d88de826d82eb50985ddb309896c MD5 | raw file
  1// SPDX-License-Identifier: GPL-2.0-or-later
  2/*
  3 *   pata_pcmcia.c - PCMCIA PATA controller driver.
  4 *   Copyright 2005-2006 Red Hat Inc, all rights reserved.
  5 *   PCMCIA ident update Copyright 2006 Marcin Juszkiewicz
  6 *						<openembedded@hrw.one.pl>
  7 *
  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>
 16#include <linux/blkdev.h>
 17#include <linux/delay.h>
 18#include <linux/slab.h>
 19#include <scsi/scsi_host.h>
 20#include <linux/ata.h>
 21#include <linux/libata.h>
 22
 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"
 30#define DRV_VERSION "0.3.5"
 31
 32/**
 33 *	pcmcia_set_mode	-	PCMCIA specific mode setup
 34 *	@link: link
 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
 43static int pcmcia_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
 44{
 45	struct ata_device *master = &link->device[0];
 46	struct ata_device *slave = &link->device[1];
 47
 48	if (!ata_dev_enabled(master) || !ata_dev_enabled(slave))
 49		return ata_do_set_mode(link, r_failed_dev);
 50
 51	if (memcmp(master->id + ATA_ID_FW_REV,  slave->id + ATA_ID_FW_REV,
 52			   ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0) {
 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) {
 57			ata_dev_warn(slave, "is a ghost device, ignoring\n");
 58			ata_dev_disable(slave);
 59		}
 60	}
 61	return ata_do_set_mode(link, r_failed_dev);
 62}
 63
 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
 72static 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
 80 *	@qc: queued command
 81 *	@buf: data buffer
 82 *	@buflen: buffer length
 83 *	@rw: read/write
 84 *
 85 *	Transfer data from/to the device data register by 8 bit PIO.
 86 *
 87 *	LOCKING:
 88 *	Inherited from caller.
 89 */
 90
 91static unsigned int ata_data_xfer_8bit(struct ata_queued_cmd *qc,
 92				unsigned char *buf, unsigned int buflen, int rw)
 93{
 94	struct ata_port *ap = qc->dev->link->ap;
 95
 96	if (rw == READ)
 97		ioread8_rep(ap->ioaddr.data_addr, buf, buflen);
 98	else
 99		iowrite8_rep(ap->ioaddr.data_addr, buf, buflen);
100
101	return buflen;
102}
103
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
109 *	failing to complete. In some cases this is necessary before a
110 *	reset will recover the device.
111 *
112 */
113
114static void pcmcia_8bit_drain_fifo(struct ata_queued_cmd *qc)
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)
131		ata_port_warn(ap, "drained %d bytes to clear DRQ\n", count);
132
133}
134
135static struct scsi_host_template pcmcia_sht = {
136	ATA_PIO_SHT(DRV_NAME),
137};
138
139static struct ata_port_operations pcmcia_port_ops = {
140	.inherits	= &ata_sff_port_ops,
141	.sff_data_xfer	= ata_sff_data_xfer32,
142	.cable_detect	= ata_cable_40wire,
143	.set_mode	= pcmcia_set_mode,
144};
145
146static struct ata_port_operations pcmcia_8bit_port_ops = {
147	.inherits	= &ata_sff_port_ops,
148	.sff_data_xfer	= ata_data_xfer_8bit,
149	.cable_detect	= ata_cable_40wire,
150	.set_mode	= pcmcia_set_mode_8bit,
151	.sff_drain_fifo	= pcmcia_8bit_drain_fifo,
152};
153
154
155static int pcmcia_check_one_config(struct pcmcia_device *pdev, void *priv_data)
156{
157	int *is_kme = priv_data;
158
159	if ((pdev->resource[0]->flags & IO_DATA_PATH_WIDTH)
160	    != IO_DATA_PATH_WIDTH_8) {
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)
172			return -ENODEV;
173	}
174
175	return pcmcia_request_io(pdev);
176}
177
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
186static int pcmcia_init_one(struct pcmcia_device *pdev)
187{
188	struct ata_host *host;
189	struct ata_port *ap;
190	int is_kme = 0, ret = -ENOMEM, p;
191	unsigned long io_base, ctl_base;
192	void __iomem *io_addr, *ctl_addr;
193	int n_ports = 1;
194	struct ata_port_operations *ops = &pcmcia_port_ops;
195
196	/* Set up attributes in order to probe card and get resources */
197	pdev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO |
198		CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC;
199
200	/* See if we have a manufacturer identifier. Use it to set is_kme for
201	   vendor quirks */
202	is_kme = ((pdev->manf_id == MANFID_KME) &&
203		  ((pdev->card_id == PRODID_KME_KXLC005_A) ||
204		   (pdev->card_id == PRODID_KME_KXLC005_B)));
205
206	if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme)) {
207		pdev->config_flags &= ~CONF_AUTO_CHECK_VCC;
208		if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme))
209			goto failed; /* No suitable config found */
210	}
211	io_base = pdev->resource[0]->start;
212	if (pdev->resource[1]->end)
213		ctl_base = pdev->resource[1]->start;
214	else
215		ctl_base = pdev->resource[0]->start + 0x0e;
216
217	if (!pdev->irq)
218		goto failed;
219
220	ret = pcmcia_enable_device(pdev);
221	if (ret)
222		goto failed;
223
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
231	/* Success. Disable the IRQ nIEN line, do quirks */
232	iowrite8(0x02, ctl_addr);
233	if (is_kme)
234		iowrite8(0x81, ctl_addr + 0x01);
235
236	/* FIXME: Could be more ports at base + 0x10 but we only deal with
237	   one right now */
238	if (resource_size(pdev->resource[0]) >= 0x20)
239		n_ports = 2;
240
241	if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620)
242		ops = &pcmcia_8bit_port_ops;
243	/*
244	 *	Having done the PCMCIA plumbing the ATA side is relatively
245	 *	sane.
246	 */
247	ret = -ENOMEM;
248	host = ata_host_alloc(&pdev->dev, n_ports);
249	if (!host)
250		goto failed;
251
252	for (p = 0; p < n_ports; p++) {
253		ap = host->ports[p];
254
255		ap->ops = ops;
256		ap->pio_mask = ATA_PIO0;	/* ISA so PIO 0 cycles */
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;
261		ata_sff_std_ports(&ap->ioaddr);
262
263		ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base);
264	}
265
266	/* activate */
267	ret = ata_host_activate(host, pdev->irq, ata_sff_interrupt,
268				IRQF_SHARED, &pcmcia_sht);
269	if (ret)
270		goto failed;
271
272	pdev->priv = host;
273	return 0;
274
275failed:
276	pcmcia_disable_device(pdev);
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
288static void pcmcia_remove_one(struct pcmcia_device *pdev)
289{
290	struct ata_host *host = pdev->priv;
291
292	if (host)
293		ata_host_detach(host);
294
295	pcmcia_disable_device(pdev);
296}
297
298static const struct pcmcia_device_id pcmcia_devices[] = {
299	PCMCIA_DEVICE_FUNC_ID(4),
300	PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000),	/* Corsair */
301	PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000),	/* Hitachi */
302	PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000),	/* I-O Data CFA */
303	PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001),	/* Mitsubishi CFA */
304	PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
305	PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
306	PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401),	/* SanDisk CFA */
307	PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000),	/* Kingston */
308	PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), 	/* TI emulated */
309	PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000),	/* Toshiba */
310	PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
311	PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000),	/* Samsung */
312	PCMCIA_DEVICE_MANF_CARD(0x00f1, 0x0101),	/* SanDisk High (>8G) CFA */
313	PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000),	/* Hitachi */
314	PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
315	PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100),	/* Viking CFA */
316	PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200),	/* Lexar, Viking CFA */
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),
322	PCMCIA_DEVICE_PROD_ID12("CNF   ", "CD-ROM", 0x46d7db81, 0x66536591),
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),
332	PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
333	PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
334	PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
335	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x55d5bffb),
336	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10),
337	PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
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),
342	PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee),
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),
352	PCMCIA_DEVICE_PROD_ID1("TRANSCEND    512M   ", 0xd0909443),
353	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32),
354	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
355	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
356	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
357	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x7558f133),
358	PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47),
359	PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
360	PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
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),
364	PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506),
365	PCMCIA_DEVICE_NULL,
366};
367
368MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices);
369
370static struct pcmcia_driver pcmcia_driver = {
371	.owner		= THIS_MODULE,
372	.name		= DRV_NAME,
373	.id_table	= pcmcia_devices,
374	.probe		= pcmcia_init_one,
375	.remove		= pcmcia_remove_one,
376};
377module_pcmcia_driver(pcmcia_driver);
378
379MODULE_AUTHOR("Alan Cox");
380MODULE_DESCRIPTION("low-level driver for PCMCIA ATA");
381MODULE_LICENSE("GPL");
382MODULE_VERSION(DRV_VERSION);