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
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"
45 #define DRV_VERSION "0.3.3"
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
57 /**
58 * pcmcia_set_mode - PCMCIA specific mode setup
59 * @link: link
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
pcmcia_set_mode(struct ata_link * link,struct ata_device ** r_failed_dev)68 static int pcmcia_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
69 {
70 struct ata_device *master = &link->device[0];
71 struct ata_device *slave = &link->device[1];
72
73 if (!ata_dev_enabled(master) || !ata_dev_enabled(slave))
74 return ata_do_set_mode(link, r_failed_dev);
75
76 if (memcmp(master->id + ATA_ID_FW_REV, slave->id + ATA_ID_FW_REV,
77 ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0) {
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 }
86 return ata_do_set_mode(link, r_failed_dev);
87 }
88
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
pcmcia_set_mode_8bit(struct ata_link * link,struct ata_device ** r_failed_dev)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
105 * @dev: device to target
106 * @buf: data buffer
107 * @buflen: buffer length
108 * @rw: read/write
109 *
110 * Transfer data from/to the device data register by 8 bit PIO.
111 *
112 * LOCKING:
113 * Inherited from caller.
114 */
115
ata_data_xfer_8bit(struct ata_device * dev,unsigned char * buf,unsigned int buflen,int rw)116 static unsigned int ata_data_xfer_8bit(struct ata_device *dev,
117 unsigned char *buf, unsigned int buflen, int rw)
118 {
119 struct ata_port *ap = dev->link->ap;
120
121 if (rw == READ)
122 ioread8_rep(ap->ioaddr.data_addr, buf, buflen);
123 else
124 iowrite8_rep(ap->ioaddr.data_addr, buf, buflen);
125
126 return buflen;
127 }
128
129
130 static struct scsi_host_template pcmcia_sht = {
131 ATA_PIO_SHT(DRV_NAME),
132 };
133
134 static struct ata_port_operations pcmcia_port_ops = {
135 .inherits = &ata_sff_port_ops,
136 .sff_data_xfer = ata_sff_data_xfer_noirq,
137 .cable_detect = ata_cable_40wire,
138 .set_mode = pcmcia_set_mode,
139 };
140
141 static struct ata_port_operations pcmcia_8bit_port_ops = {
142 .inherits = &ata_sff_port_ops,
143 .sff_data_xfer = ata_data_xfer_8bit,
144 .cable_detect = ata_cable_40wire,
145 .set_mode = pcmcia_set_mode_8bit,
146 };
147
148 #define CS_CHECK(fn, ret) \
149 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
150
151
152 struct pcmcia_config_check {
153 unsigned long ctl_base;
154 int skip_vcc;
155 int is_kme;
156 };
157
pcmcia_check_one_config(struct pcmcia_device * pdev,cistpl_cftable_entry_t * cfg,cistpl_cftable_entry_t * dflt,unsigned int vcc,void * priv_data)158 static int pcmcia_check_one_config(struct pcmcia_device *pdev,
159 cistpl_cftable_entry_t *cfg,
160 cistpl_cftable_entry_t *dflt,
161 unsigned int vcc,
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)) {
169 if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
170 return -ENODEV;
171 } else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) {
172 if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000)
173 return -ENODEV;
174 }
175 }
176
177 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
178 pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
179 else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM))
180 pdev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000;
181
182 if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
183 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
184 pdev->io.BasePort1 = io->win[0].base;
185 pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
186 if (!(io->flags & CISTPL_IO_16BIT))
187 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
188 if (io->nwin == 2) {
189 pdev->io.NumPorts1 = 8;
190 pdev->io.BasePort2 = io->win[1].base;
191 pdev->io.NumPorts2 = (stk->is_kme) ? 2 : 1;
192 if (pcmcia_request_io(pdev, &pdev->io) != 0)
193 return -ENODEV;
194 stk->ctl_base = pdev->io.BasePort2;
195 } else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
196 pdev->io.NumPorts1 = io->win[0].len;
197 pdev->io.NumPorts2 = 0;
198 if (pcmcia_request_io(pdev, &pdev->io) != 0)
199 return -ENODEV;
200 stk->ctl_base = pdev->io.BasePort1 + 0x0e;
201 } else
202 return -ENODEV;
203 /* If we've got this far, we're done */
204 return 0;
205 }
206 return -ENODEV;
207 }
208
209 /**
210 * pcmcia_init_one - attach a PCMCIA interface
211 * @pdev: pcmcia device
212 *
213 * Register a PCMCIA IDE interface. Such interfaces are PIO 0 and
214 * shared IRQ.
215 */
216
pcmcia_init_one(struct pcmcia_device * pdev)217 static int pcmcia_init_one(struct pcmcia_device *pdev)
218 {
219 struct ata_host *host;
220 struct ata_port *ap;
221 struct ata_pcmcia_info *info;
222 struct pcmcia_config_check *stk = NULL;
223 int last_ret = 0, last_fn = 0, is_kme = 0, ret = -ENOMEM, p;
224 unsigned long io_base, ctl_base;
225 void __iomem *io_addr, *ctl_addr;
226 int n_ports = 1;
227 struct ata_port_operations *ops = &pcmcia_port_ops;
228
229 info = kzalloc(sizeof(*info), GFP_KERNEL);
230 if (info == NULL)
231 return -ENOMEM;
232
233 /* Glue stuff together. FIXME: We may be able to get rid of info with care */
234 info->pdev = pdev;
235 pdev->priv = info;
236
237 /* Set up attributes in order to probe card and get resources */
238 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
239 pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
240 pdev->io.IOAddrLines = 3;
241 pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
242 pdev->irq.IRQInfo1 = IRQ_LEVEL_ID;
243 pdev->conf.Attributes = CONF_ENABLE_IRQ;
244 pdev->conf.IntType = INT_MEMORY_AND_IO;
245
246 /* See if we have a manufacturer identifier. Use it to set is_kme for
247 vendor quirks */
248 is_kme = ((pdev->manf_id == MANFID_KME) &&
249 ((pdev->card_id == PRODID_KME_KXLC005_A) ||
250 (pdev->card_id == PRODID_KME_KXLC005_B)));
251
252 /* Allocate resoure probing structures */
253
254 stk = kzalloc(sizeof(*stk), GFP_KERNEL);
255 if (!stk)
256 goto out1;
257 stk->is_kme = is_kme;
258 stk->skip_vcc = io_base = ctl_base = 0;
259
260 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk)) {
261 stk->skip_vcc = 1;
262 if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk))
263 goto failed; /* No suitable config found */
264 }
265 io_base = pdev->io.BasePort1;
266 ctl_base = stk->ctl_base;
267 CS_CHECK(RequestIRQ, pcmcia_request_irq(pdev, &pdev->irq));
268 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(pdev, &pdev->conf));
269
270 /* iomap */
271 ret = -ENOMEM;
272 io_addr = devm_ioport_map(&pdev->dev, io_base, 8);
273 ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1);
274 if (!io_addr || !ctl_addr)
275 goto failed;
276
277 /* Success. Disable the IRQ nIEN line, do quirks */
278 iowrite8(0x02, ctl_addr);
279 if (is_kme)
280 iowrite8(0x81, ctl_addr + 0x01);
281
282 /* FIXME: Could be more ports at base + 0x10 but we only deal with
283 one right now */
284 if (pdev->io.NumPorts1 >= 0x20)
285 n_ports = 2;
286
287 if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620)
288 ops = &pcmcia_8bit_port_ops;
289 /*
290 * Having done the PCMCIA plumbing the ATA side is relatively
291 * sane.
292 */
293 ret = -ENOMEM;
294 host = ata_host_alloc(&pdev->dev, n_ports);
295 if (!host)
296 goto failed;
297
298 for (p = 0; p < n_ports; p++) {
299 ap = host->ports[p];
300
301 ap->ops = ops;
302 ap->pio_mask = 1; /* ISA so PIO 0 cycles */
303 ap->flags |= ATA_FLAG_SLAVE_POSS;
304 ap->ioaddr.cmd_addr = io_addr + 0x10 * p;
305 ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p;
306 ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p;
307 ata_sff_std_ports(&ap->ioaddr);
308
309 ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base);
310 }
311
312 /* activate */
313 ret = ata_host_activate(host, pdev->irq.AssignedIRQ, ata_sff_interrupt,
314 IRQF_SHARED, &pcmcia_sht);
315 if (ret)
316 goto failed;
317
318 info->ndev = 1;
319 kfree(stk);
320 return 0;
321
322 cs_failed:
323 cs_error(pdev, last_fn, last_ret);
324 failed:
325 kfree(stk);
326 info->ndev = 0;
327 pcmcia_disable_device(pdev);
328 out1:
329 kfree(info);
330 return ret;
331 }
332
333 /**
334 * pcmcia_remove_one - unplug an pcmcia interface
335 * @pdev: pcmcia device
336 *
337 * A PCMCIA ATA device has been unplugged. Perform the needed
338 * cleanup. Also called on module unload for any active devices.
339 */
340
pcmcia_remove_one(struct pcmcia_device * pdev)341 static void pcmcia_remove_one(struct pcmcia_device *pdev)
342 {
343 struct ata_pcmcia_info *info = pdev->priv;
344 struct device *dev = &pdev->dev;
345
346 if (info != NULL) {
347 /* If we have attached the device to the ATA layer, detach it */
348 if (info->ndev) {
349 struct ata_host *host = dev_get_drvdata(dev);
350 ata_host_detach(host);
351 }
352 info->ndev = 0;
353 pdev->priv = NULL;
354 }
355 pcmcia_disable_device(pdev);
356 kfree(info);
357 }
358
359 static struct pcmcia_device_id pcmcia_devices[] = {
360 PCMCIA_DEVICE_FUNC_ID(4),
361 PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */
362 PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */
363 PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */
364 PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */
365 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
366 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
367 PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */
368 PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000), /* Kingston */
369 PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */
370 PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */
371 PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
372 PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */
373 PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */
374 PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
375 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */
376 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */
377 PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
378 PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
379 PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
380 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
381 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
382 PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
383 PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
384 PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
385 PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
386 PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591),
387 PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
388 PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
389 PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
390 PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
391 PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
392 PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
393 PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
394 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
395 PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b),
396 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
397 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
398 PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b),
399 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee),
400 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
401 PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
402 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
403 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
404 PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
405 PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),
406 PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),
407 PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),
408 PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
409 PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443),
410 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32),
411 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
412 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
413 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
414 PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
415 PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
416 PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
417 PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
418 PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
419 PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506),
420 PCMCIA_DEVICE_NULL,
421 };
422
423 MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices);
424
425 static struct pcmcia_driver pcmcia_driver = {
426 .owner = THIS_MODULE,
427 .drv = {
428 .name = DRV_NAME,
429 },
430 .id_table = pcmcia_devices,
431 .probe = pcmcia_init_one,
432 .remove = pcmcia_remove_one,
433 };
434
pcmcia_init(void)435 static int __init pcmcia_init(void)
436 {
437 return pcmcia_register_driver(&pcmcia_driver);
438 }
439
pcmcia_exit(void)440 static void __exit pcmcia_exit(void)
441 {
442 pcmcia_unregister_driver(&pcmcia_driver);
443 }
444
445 MODULE_AUTHOR("Alan Cox");
446 MODULE_DESCRIPTION("low-level driver for PCMCIA ATA");
447 MODULE_LICENSE("GPL");
448 MODULE_VERSION(DRV_VERSION);
449
450 module_init(pcmcia_init);
451 module_exit(pcmcia_exit);
452