[PATCH] pcmcia: properly handle pseudo multi-function devices
[linux-2.6-block.git] / drivers / ide / legacy / ide-cs.c
CommitLineData
1da177e4
LT
1/*======================================================================
2
3 A driver for PCMCIA IDE/ATA disk cards
4
5 ide-cs.c 1.3 2002/10/26 05:45:31
6
7 The contents of this file are subject to the Mozilla Public
8 License Version 1.1 (the "License"); you may not use this file
9 except in compliance with the License. You may obtain a copy of
10 the License at http://www.mozilla.org/MPL/
11
12 Software distributed under the License is distributed on an "AS
13 IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
14 implied. See the License for the specific language governing
15 rights and limitations under the License.
16
17 The initial developer of the original code is David A. Hinds
18 <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
19 are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
20
21 Alternatively, the contents of this file may be used under the
22 terms of the GNU General Public License version 2 (the "GPL"), in
23 which case the provisions of the GPL are applicable instead of the
24 above. If you wish to allow the use of your version of this file
25 only under the terms of the GPL and not to allow others to use
26 your version of this file under the MPL, indicate your decision
27 by deleting the provisions above and replace them with the notice
28 and other provisions required by the GPL. If you do not delete
29 the provisions above, a recipient may use your version of this
30 file under either the MPL or the GPL.
31
32======================================================================*/
33
34#include <linux/module.h>
35#include <linux/kernel.h>
36#include <linux/init.h>
37#include <linux/sched.h>
38#include <linux/ptrace.h>
39#include <linux/slab.h>
40#include <linux/string.h>
41#include <linux/timer.h>
42#include <linux/ioport.h>
43#include <linux/ide.h>
44#include <linux/hdreg.h>
45#include <linux/major.h>
2aad5f03 46#include <linux/delay.h>
1da177e4
LT
47#include <asm/io.h>
48#include <asm/system.h>
49
1da177e4
LT
50#include <pcmcia/cs_types.h>
51#include <pcmcia/cs.h>
52#include <pcmcia/cistpl.h>
53#include <pcmcia/ds.h>
54#include <pcmcia/cisreg.h>
55#include <pcmcia/ciscode.h>
56
57/*====================================================================*/
58
59/* Module parameters */
60
61MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
62MODULE_DESCRIPTION("PCMCIA ATA/IDE card driver");
63MODULE_LICENSE("Dual MPL/GPL");
64
65#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
66
67#ifdef PCMCIA_DEBUG
68INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
69#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
70static char *version =
71"ide-cs.c 1.3 2002/10/26 05:45:31 (David Hinds)";
72#else
73#define DEBUG(n, args...)
74#endif
75
76/*====================================================================*/
77
78static const char ide_major[] = {
79 IDE0_MAJOR, IDE1_MAJOR, IDE2_MAJOR, IDE3_MAJOR,
80 IDE4_MAJOR, IDE5_MAJOR
81};
82
83typedef struct ide_info_t {
84 dev_link_t link;
85 int ndev;
86 dev_node_t node;
87 int hd;
88} ide_info_t;
89
90static void ide_release(dev_link_t *);
f8cfa618 91static void ide_config(dev_link_t *);
1da177e4 92
cc3b4866 93static void ide_detach(struct pcmcia_device *p_dev);
1da177e4 94
b4635811
DB
95
96
1da177e4
LT
97
98/*======================================================================
99
100 ide_attach() creates an "instance" of the driver, allocating
101 local data structures for one device. The device is registered
102 with Card Services.
103
104======================================================================*/
105
f8cfa618 106static int ide_attach(struct pcmcia_device *p_dev)
1da177e4
LT
107{
108 ide_info_t *info;
109 dev_link_t *link;
f8cfa618 110
1da177e4
LT
111 DEBUG(0, "ide_attach()\n");
112
113 /* Create new ide device */
f5e3c2fa 114 info = kzalloc(sizeof(*info), GFP_KERNEL);
f8cfa618
DB
115 if (!info)
116 return -ENOMEM;
1da177e4
LT
117 link = &info->link; link->priv = info;
118
119 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
120 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
121 link->io.IOAddrLines = 3;
122 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
123 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
124 link->conf.Attributes = CONF_ENABLE_IRQ;
125 link->conf.Vcc = 50;
126 link->conf.IntType = INT_MEMORY_AND_IO;
f8cfa618
DB
127
128 link->handle = p_dev;
129 p_dev->instance = link;
130
131 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
132 ide_config(link);
133
134 return 0;
1da177e4
LT
135} /* ide_attach */
136
137/*======================================================================
138
139 This deletes a driver "instance". The device is de-registered
140 with Card Services. If it has been released, all local data
141 structures are freed. Otherwise, the structures will be freed
142 when the device is released.
143
144======================================================================*/
145
cc3b4866 146static void ide_detach(struct pcmcia_device *p_dev)
1da177e4 147{
cc3b4866 148 dev_link_t *link = dev_to_instance(p_dev);
1da177e4
LT
149
150 DEBUG(0, "ide_detach(0x%p)\n", link);
1da177e4
LT
151
152 if (link->state & DEV_CONFIG)
153 ide_release(link);
b4635811 154
1da177e4 155 kfree(link->priv);
1da177e4
LT
156} /* ide_detach */
157
4349d5cd 158static int idecs_register(unsigned long io, unsigned long ctl, unsigned long irq, struct pcmcia_device *handle)
1da177e4
LT
159{
160 hw_regs_t hw;
161 memset(&hw, 0, sizeof(hw));
162 ide_init_hwif_ports(&hw, io, ctl, NULL);
163 hw.irq = irq;
164 hw.chipset = ide_pci;
4349d5cd 165 hw.dev = &handle->dev;
1da177e4
LT
166 return ide_register_hw_with_fixup(&hw, NULL, ide_undecoded_slave);
167}
168
169/*======================================================================
170
171 ide_config() is scheduled to run after a CARD_INSERTION event
172 is received, to configure the PCMCIA socket, and to make the
173 ide device available to the system.
174
175======================================================================*/
176
177#define CS_CHECK(fn, ret) \
178do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
179
180static void ide_config(dev_link_t *link)
181{
182 client_handle_t handle = link->handle;
183 ide_info_t *info = link->priv;
184 tuple_t tuple;
185 struct {
186 u_short buf[128];
187 cisparse_t parse;
188 config_info_t conf;
189 cistpl_cftable_entry_t dflt;
190 } *stk = NULL;
191 cistpl_cftable_entry_t *cfg;
192 int i, pass, last_ret = 0, last_fn = 0, hd, is_kme = 0;
193 unsigned long io_base, ctl_base;
194
195 DEBUG(0, "ide_config(0x%p)\n", link);
196
f5e3c2fa 197 stk = kzalloc(sizeof(*stk), GFP_KERNEL);
1da177e4 198 if (!stk) goto err_mem;
1da177e4
LT
199 cfg = &stk->parse.cftable_entry;
200
201 tuple.TupleData = (cisdata_t *)&stk->buf;
202 tuple.TupleOffset = 0;
203 tuple.TupleDataMax = 255;
204 tuple.Attributes = 0;
205 tuple.DesiredTuple = CISTPL_CONFIG;
206 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
207 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
208 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &stk->parse));
209 link->conf.ConfigBase = stk->parse.config.base;
210 link->conf.Present = stk->parse.config.rmask[0];
211
212 tuple.DesiredTuple = CISTPL_MANFID;
213 if (!pcmcia_get_first_tuple(handle, &tuple) &&
214 !pcmcia_get_tuple_data(handle, &tuple) &&
215 !pcmcia_parse_tuple(handle, &tuple, &stk->parse))
216 is_kme = ((stk->parse.manfid.manf == MANFID_KME) &&
217 ((stk->parse.manfid.card == PRODID_KME_KXLC005_A) ||
218 (stk->parse.manfid.card == PRODID_KME_KXLC005_B)));
219
220 /* Configure card */
221 link->state |= DEV_CONFIG;
222
223 /* Not sure if this is right... look up the current Vcc */
224 CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &stk->conf));
225 link->conf.Vcc = stk->conf.Vcc;
226
227 pass = io_base = ctl_base = 0;
228 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
229 tuple.Attributes = 0;
230 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
231 while (1) {
232 if (pcmcia_get_tuple_data(handle, &tuple) != 0) goto next_entry;
233 if (pcmcia_parse_tuple(handle, &tuple, &stk->parse) != 0) goto next_entry;
234
235 /* Check for matching Vcc, unless we're desperate */
236 if (!pass) {
237 if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
238 if (stk->conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
239 goto next_entry;
240 } else if (stk->dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) {
241 if (stk->conf.Vcc != stk->dflt.vcc.param[CISTPL_POWER_VNOM] / 10000)
242 goto next_entry;
243 }
244 }
245
246 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
247 link->conf.Vpp1 = link->conf.Vpp2 =
248 cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
249 else if (stk->dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
250 link->conf.Vpp1 = link->conf.Vpp2 =
251 stk->dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;
252
253 if ((cfg->io.nwin > 0) || (stk->dflt.io.nwin > 0)) {
254 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &stk->dflt.io;
255 link->conf.ConfigIndex = cfg->index;
256 link->io.BasePort1 = io->win[0].base;
257 link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
258 if (!(io->flags & CISTPL_IO_16BIT))
259 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
260 if (io->nwin == 2) {
261 link->io.NumPorts1 = 8;
262 link->io.BasePort2 = io->win[1].base;
263 link->io.NumPorts2 = (is_kme) ? 2 : 1;
264 if (pcmcia_request_io(link->handle, &link->io) != 0)
265 goto next_entry;
266 io_base = link->io.BasePort1;
267 ctl_base = link->io.BasePort2;
268 } else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
269 link->io.NumPorts1 = io->win[0].len;
270 link->io.NumPorts2 = 0;
271 if (pcmcia_request_io(link->handle, &link->io) != 0)
272 goto next_entry;
273 io_base = link->io.BasePort1;
274 ctl_base = link->io.BasePort1 + 0x0e;
275 } else goto next_entry;
276 /* If we've got this far, we're done */
277 break;
278 }
279
280 next_entry:
281 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
282 memcpy(&stk->dflt, cfg, sizeof(stk->dflt));
283 if (pass) {
284 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
285 } else if (pcmcia_get_next_tuple(handle, &tuple) != 0) {
286 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
287 memset(&stk->dflt, 0, sizeof(stk->dflt));
288 pass++;
289 }
290 }
291
292 CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
293 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
294
295 /* disable drive interrupts during IDE probe */
296 outb(0x02, ctl_base);
297
298 /* special setup for KXLC005 card */
299 if (is_kme)
300 outb(0x81, ctl_base+1);
301
302 /* retry registration in case device is still spinning up */
303 for (hd = -1, i = 0; i < 10; i++) {
4349d5cd 304 hd = idecs_register(io_base, ctl_base, link->irq.AssignedIRQ, handle);
1da177e4
LT
305 if (hd >= 0) break;
306 if (link->io.NumPorts1 == 0x20) {
307 outb(0x02, ctl_base + 0x10);
308 hd = idecs_register(io_base + 0x10, ctl_base + 0x10,
4349d5cd 309 link->irq.AssignedIRQ, handle);
1da177e4
LT
310 if (hd >= 0) {
311 io_base += 0x10;
312 ctl_base += 0x10;
313 break;
314 }
315 }
2aad5f03 316 msleep(100);
1da177e4
LT
317 }
318
319 if (hd < 0) {
320 printk(KERN_NOTICE "ide-cs: ide_register() at 0x%3lx & 0x%3lx"
321 ", irq %u failed\n", io_base, ctl_base,
322 link->irq.AssignedIRQ);
323 goto failed;
324 }
325
326 info->ndev = 1;
327 sprintf(info->node.dev_name, "hd%c", 'a' + (hd * 2));
328 info->node.major = ide_major[hd];
329 info->node.minor = 0;
330 info->hd = hd;
331 link->dev = &info->node;
332 printk(KERN_INFO "ide-cs: %s: Vcc = %d.%d, Vpp = %d.%d\n",
333 info->node.dev_name, link->conf.Vcc / 10, link->conf.Vcc % 10,
334 link->conf.Vpp1 / 10, link->conf.Vpp1 % 10);
335
336 link->state &= ~DEV_CONFIG_PENDING;
337 kfree(stk);
338 return;
339
340err_mem:
341 printk(KERN_NOTICE "ide-cs: ide_config failed memory allocation\n");
342 goto failed;
343
344cs_failed:
345 cs_error(link->handle, last_fn, last_ret);
346failed:
347 kfree(stk);
348 ide_release(link);
349 link->state &= ~DEV_CONFIG_PENDING;
350} /* ide_config */
351
352/*======================================================================
353
354 After a card is removed, ide_release() will unregister the net
355 device, and release the PCMCIA configuration. If the device is
356 still open, this will be postponed until it is closed.
357
358======================================================================*/
359
360void ide_release(dev_link_t *link)
361{
362 ide_info_t *info = link->priv;
363
364 DEBUG(0, "ide_release(0x%p)\n", link);
365
366 if (info->ndev) {
367 /* FIXME: if this fails we need to queue the cleanup somehow
368 -- need to investigate the required PCMCIA magic */
369 ide_unregister(info->hd);
370 }
371 info->ndev = 0;
372 link->dev = NULL;
373
374 pcmcia_release_configuration(link->handle);
375 pcmcia_release_io(link->handle, &link->io);
376 pcmcia_release_irq(link->handle, &link->irq);
377
378 link->state &= ~DEV_CONFIG;
379
380} /* ide_release */
381
98e4c28b
DB
382static int ide_suspend(struct pcmcia_device *dev)
383{
384 dev_link_t *link = dev_to_instance(dev);
385
386 link->state |= DEV_SUSPEND;
387 if (link->state & DEV_CONFIG)
388 pcmcia_release_configuration(link->handle);
389
390 return 0;
391}
392
393static int ide_resume(struct pcmcia_device *dev)
394{
395 dev_link_t *link = dev_to_instance(dev);
396
397 link->state &= ~DEV_SUSPEND;
398 if (DEV_OK(link))
399 pcmcia_request_configuration(link->handle, &link->conf);
400
401 return 0;
402}
403
1da177e4
LT
404/*======================================================================
405
406 The card status event handler. Mostly, this schedules other
407 stuff to run after an event is received. A CARD_REMOVAL event
408 also sets some flags to discourage the ide drivers from
409 talking to the ports.
410
411======================================================================*/
412
f70b7d40
DB
413static struct pcmcia_device_id ide_ids[] = {
414 PCMCIA_DEVICE_FUNC_ID(4),
725a6abf 415 PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */
f70b7d40 416 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
d3feb184
DB
417 PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401),
418 PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */
f70b7d40 419 PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
d3feb184 420 PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */
725a6abf 421 PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */
f70b7d40 422 PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
d3feb184 423 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar */
f70b7d40
DB
424 PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
425 PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
426 PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
427 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
428 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
429 PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
430 PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
431 PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
d277ad0e 432 PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
f70b7d40
DB
433 PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591),
434 PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
435 PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
725a6abf
RP
436 PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
437 PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
f70b7d40
DB
438 PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
439 PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b),
440 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
441 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
442 PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b),
2570b746 443 PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
f70b7d40
DB
444 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
445 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
446 PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
447 PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
448 PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
449 PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
d3feb184 450 PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
698e22c4 451 PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
f70b7d40
DB
452 PCMCIA_DEVICE_NULL,
453};
454MODULE_DEVICE_TABLE(pcmcia, ide_ids);
455
1da177e4
LT
456static struct pcmcia_driver ide_cs_driver = {
457 .owner = THIS_MODULE,
458 .drv = {
459 .name = "ide-cs",
460 },
f8cfa618 461 .probe = ide_attach,
cc3b4866 462 .remove = ide_detach,
f70b7d40 463 .id_table = ide_ids,
98e4c28b
DB
464 .suspend = ide_suspend,
465 .resume = ide_resume,
1da177e4
LT
466};
467
468static int __init init_ide_cs(void)
469{
470 return pcmcia_register_driver(&ide_cs_driver);
471}
472
473static void __exit exit_ide_cs(void)
474{
475 pcmcia_unregister_driver(&ide_cs_driver);
1da177e4
LT
476}
477
2b8d4669 478late_initcall(init_ide_cs);
1da177e4 479module_exit(exit_ide_cs);