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pata_pcmcia.c
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1 /*
2  * pata_pcmcia.c - PCMCIA PATA controller driver.
3  * Copyright 2005-2006 Red Hat Inc, all rights reserved.
4  * PCMCIA ident update Copyright 2006 Marcin Juszkiewicz
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  * <[email protected]>. 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 <linux/slab.h>
33 #include <scsi/scsi_host.h>
34 #include <linux/ata.h>
35 #include <linux/libata.h>
36 
37 #include <pcmcia/cistpl.h>
38 #include <pcmcia/ds.h>
39 #include <pcmcia/cisreg.h>
40 #include <pcmcia/ciscode.h>
41 
42 
43 #define DRV_NAME "pata_pcmcia"
44 #define DRV_VERSION "0.3.5"
45 
57 static int pcmcia_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
58 {
59  struct ata_device *master = &link->device[0];
60  struct ata_device *slave = &link->device[1];
61 
62  if (!ata_dev_enabled(master) || !ata_dev_enabled(slave))
63  return ata_do_set_mode(link, r_failed_dev);
64 
65  if (memcmp(master->id + ATA_ID_FW_REV, slave->id + ATA_ID_FW_REV,
67  /* Suspicious match, but could be two cards from
68  the same vendor - check serial */
69  if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO,
70  ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) {
71  ata_dev_warn(slave, "is a ghost device, ignoring\n");
72  ata_dev_disable(slave);
73  }
74  }
75  return ata_do_set_mode(link, r_failed_dev);
76 }
77 
86 static int pcmcia_set_mode_8bit(struct ata_link *link,
87  struct ata_device **r_failed_dev)
88 {
89  return 0;
90 }
91 
105 static unsigned int ata_data_xfer_8bit(struct ata_device *dev,
106  unsigned char *buf, unsigned int buflen, int rw)
107 {
108  struct ata_port *ap = dev->link->ap;
109 
110  if (rw == READ)
111  ioread8_rep(ap->ioaddr.data_addr, buf, buflen);
112  else
113  iowrite8_rep(ap->ioaddr.data_addr, buf, buflen);
114 
115  return buflen;
116 }
117 
128 static void pcmcia_8bit_drain_fifo(struct ata_queued_cmd *qc)
129 {
130  int count;
131  struct ata_port *ap;
132 
133  /* We only need to flush incoming data when a command was running */
134  if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE)
135  return;
136 
137  ap = qc->ap;
138 
139  /* Drain up to 64K of data before we give up this recovery method */
140  for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ)
141  && count++ < 65536;)
142  ioread8(ap->ioaddr.data_addr);
143 
144  if (count)
145  ata_port_warn(ap, "drained %d bytes to clear DRQ\n", count);
146 
147 }
148 
149 static struct scsi_host_template pcmcia_sht = {
150  ATA_PIO_SHT(DRV_NAME),
151 };
152 
153 static struct ata_port_operations pcmcia_port_ops = {
154  .inherits = &ata_sff_port_ops,
155  .sff_data_xfer = ata_sff_data_xfer_noirq,
156  .cable_detect = ata_cable_40wire,
157  .set_mode = pcmcia_set_mode,
158 };
159 
160 static struct ata_port_operations pcmcia_8bit_port_ops = {
161  .inherits = &ata_sff_port_ops,
162  .sff_data_xfer = ata_data_xfer_8bit,
163  .cable_detect = ata_cable_40wire,
164  .set_mode = pcmcia_set_mode_8bit,
165  .sff_drain_fifo = pcmcia_8bit_drain_fifo,
166 };
167 
168 
169 static int pcmcia_check_one_config(struct pcmcia_device *pdev, void *priv_data)
170 {
171  int *is_kme = priv_data;
172 
173  if ((pdev->resource[0]->flags & IO_DATA_PATH_WIDTH)
174  != IO_DATA_PATH_WIDTH_8) {
175  pdev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
176  pdev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
177  }
178  pdev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
179  pdev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
180 
181  if (pdev->resource[1]->end) {
182  pdev->resource[0]->end = 8;
183  pdev->resource[1]->end = (*is_kme) ? 2 : 1;
184  } else {
185  if (pdev->resource[0]->end < 16)
186  return -ENODEV;
187  }
188 
189  return pcmcia_request_io(pdev);
190 }
191 
200 static int pcmcia_init_one(struct pcmcia_device *pdev)
201 {
202  struct ata_host *host;
203  struct ata_port *ap;
204  int is_kme = 0, ret = -ENOMEM, p;
205  unsigned long io_base, ctl_base;
206  void __iomem *io_addr, *ctl_addr;
207  int n_ports = 1;
208  struct ata_port_operations *ops = &pcmcia_port_ops;
209 
210  /* Set up attributes in order to probe card and get resources */
211  pdev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO |
212  CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC;
213 
214  /* See if we have a manufacturer identifier. Use it to set is_kme for
215  vendor quirks */
216  is_kme = ((pdev->manf_id == MANFID_KME) &&
217  ((pdev->card_id == PRODID_KME_KXLC005_A) ||
218  (pdev->card_id == PRODID_KME_KXLC005_B)));
219 
220  if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme)) {
221  pdev->config_flags &= ~CONF_AUTO_CHECK_VCC;
222  if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme))
223  goto failed; /* No suitable config found */
224  }
225  io_base = pdev->resource[0]->start;
226  if (pdev->resource[1]->end)
227  ctl_base = pdev->resource[1]->start;
228  else
229  ctl_base = pdev->resource[0]->start + 0x0e;
230 
231  if (!pdev->irq)
232  goto failed;
233 
234  ret = pcmcia_enable_device(pdev);
235  if (ret)
236  goto failed;
237 
238  /* iomap */
239  ret = -ENOMEM;
240  io_addr = devm_ioport_map(&pdev->dev, io_base, 8);
241  ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1);
242  if (!io_addr || !ctl_addr)
243  goto failed;
244 
245  /* Success. Disable the IRQ nIEN line, do quirks */
246  iowrite8(0x02, ctl_addr);
247  if (is_kme)
248  iowrite8(0x81, ctl_addr + 0x01);
249 
250  /* FIXME: Could be more ports at base + 0x10 but we only deal with
251  one right now */
252  if (resource_size(pdev->resource[0]) >= 0x20)
253  n_ports = 2;
254 
255  if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620)
256  ops = &pcmcia_8bit_port_ops;
257  /*
258  * Having done the PCMCIA plumbing the ATA side is relatively
259  * sane.
260  */
261  ret = -ENOMEM;
262  host = ata_host_alloc(&pdev->dev, n_ports);
263  if (!host)
264  goto failed;
265 
266  for (p = 0; p < n_ports; p++) {
267  ap = host->ports[p];
268 
269  ap->ops = ops;
270  ap->pio_mask = ATA_PIO0; /* ISA so PIO 0 cycles */
271  ap->flags |= ATA_FLAG_SLAVE_POSS;
272  ap->ioaddr.cmd_addr = io_addr + 0x10 * p;
273  ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p;
274  ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p;
275  ata_sff_std_ports(&ap->ioaddr);
276 
277  ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base);
278  }
279 
280  /* activate */
281  ret = ata_host_activate(host, pdev->irq, ata_sff_interrupt,
282  IRQF_SHARED, &pcmcia_sht);
283  if (ret)
284  goto failed;
285 
286  pdev->priv = host;
287  return 0;
288 
289 failed:
290  pcmcia_disable_device(pdev);
291  return ret;
292 }
293 
302 static void pcmcia_remove_one(struct pcmcia_device *pdev)
303 {
304  struct ata_host *host = pdev->priv;
305 
306  if (host)
307  ata_host_detach(host);
308 
309  pcmcia_disable_device(pdev);
310 }
311 
312 static const struct pcmcia_device_id pcmcia_devices[] = {
313  PCMCIA_DEVICE_FUNC_ID(4),
314  PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */
315  PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */
316  PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */
317  PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */
318  PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
319  PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
320  PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */
321  PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000), /* Kingston */
322  PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */
323  PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */
324  PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
325  PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */
326  PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */
327  PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
328  PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */
329  PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */
330  PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
331  PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
332  PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
333  PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
334  PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
335  PCMCIA_DEVICE_PROD_ID12("CNF ", "CD-ROM", 0x46d7db81, 0x66536591),
336  PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
337  PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
338  PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
339  PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
340  PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591),
341  PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
342  PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
343  PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
344  PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
345  PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
346  PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
347  PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
348  PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x55d5bffb),
349  PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10),
350  PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
351  PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b),
352  PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
353  PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
354  PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b),
355  PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee),
356  PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
357  PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
358  PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
359  PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
360  PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
361  PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),
362  PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),
363  PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),
364  PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
365  PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443),
366  PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32),
367  PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
368  PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
369  PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
370  PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x7558f133),
371  PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47),
372  PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
373  PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
374  PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
375  PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
376  PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
377  PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506),
378  PCMCIA_DEVICE_NULL,
379 };
380 
381 MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices);
382 
383 static struct pcmcia_driver pcmcia_driver = {
384  .owner = THIS_MODULE,
385  .name = DRV_NAME,
386  .id_table = pcmcia_devices,
387  .probe = pcmcia_init_one,
388  .remove = pcmcia_remove_one,
389 };
390 
391 static int __init pcmcia_init(void)
392 {
393  return pcmcia_register_driver(&pcmcia_driver);
394 }
395 
396 static void __exit pcmcia_exit(void)
397 {
398  pcmcia_unregister_driver(&pcmcia_driver);
399 }
400 
401 MODULE_AUTHOR("Alan Cox");
402 MODULE_DESCRIPTION("low-level driver for PCMCIA ATA");
403 MODULE_LICENSE("GPL");
405 
406 module_init(pcmcia_init);
407 module_exit(pcmcia_exit);