tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*======================================================================
2
3 A driver for PCMCIA IDE/ATA disk cards
4
5 The contents of this file are subject to the Mozilla Public
6 License Version 1.1 (the "License"); you may not use this file
7 except in compliance with the License. You may obtain a copy of
8 the License at http://www.mozilla.org/MPL/
9
10 Software distributed under the License is distributed on an "AS
11 IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
12 implied. See the License for the specific language governing
13 rights and limitations under the License.
14
15 The initial developer of the original code is David A. Hinds
16 <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
17 are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
18
19 Alternatively, the contents of this file may be used under the
20 terms of the GNU General Public License version 2 (the "GPL"), in
21 which case the provisions of the GPL are applicable instead of the
22 above. If you wish to allow the use of your version of this file
23 only under the terms of the GPL and not to allow others to use
24 your version of this file under the MPL, indicate your decision
25 by deleting the provisions above and replace them with the notice
26 and other provisions required by the GPL. If you do not delete
27 the provisions above, a recipient may use your version of this
28 file under either the MPL or the GPL.
29
30======================================================================*/
31
32#include <linux/module.h>
33#include <linux/kernel.h>
34#include <linux/init.h>
35#include <linux/ptrace.h>
36#include <linux/slab.h>
37#include <linux/string.h>
38#include <linux/timer.h>
39#include <linux/ioport.h>
40#include <linux/ide.h>
41#include <linux/major.h>
42#include <linux/delay.h>
43#include <asm/io.h>
44#include <asm/system.h>
45
46#include <pcmcia/cs_types.h>
47#include <pcmcia/cs.h>
48#include <pcmcia/cistpl.h>
49#include <pcmcia/ds.h>
50#include <pcmcia/cisreg.h>
51#include <pcmcia/ciscode.h>
52
53#define DRV_NAME "ide-cs"
54
55/*====================================================================*/
56
57/* Module parameters */
58
59MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
60MODULE_DESCRIPTION("PCMCIA ATA/IDE card driver");
61MODULE_LICENSE("Dual MPL/GPL");
62
63#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
64
65#ifdef CONFIG_PCMCIA_DEBUG
66INT_MODULE_PARM(pc_debug, 0);
67#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
68#else
69#define DEBUG(n, args...)
70#endif
71
72/*====================================================================*/
73
74typedef struct ide_info_t {
75 struct pcmcia_device *p_dev;
76 struct ide_host *host;
77 int ndev;
78 dev_node_t node;
79} ide_info_t;
80
81static void ide_release(struct pcmcia_device *);
82static int ide_config(struct pcmcia_device *);
83
84static void ide_detach(struct pcmcia_device *p_dev);
85
86
87
88
89/*======================================================================
90
91 ide_attach() creates an "instance" of the driver, allocating
92 local data structures for one device. The device is registered
93 with Card Services.
94
95======================================================================*/
96
97static int ide_probe(struct pcmcia_device *link)
98{
99 ide_info_t *info;
100
101 DEBUG(0, "ide_attach()\n");
102
103 /* Create new ide device */
104 info = kzalloc(sizeof(*info), GFP_KERNEL);
105 if (!info)
106 return -ENOMEM;
107
108 info->p_dev = link;
109 link->priv = info;
110
111 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
112 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
113 link->io.IOAddrLines = 3;
114 link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
115 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
116 link->conf.Attributes = CONF_ENABLE_IRQ;
117 link->conf.IntType = INT_MEMORY_AND_IO;
118
119 return ide_config(link);
120} /* ide_attach */
121
122/*======================================================================
123
124 This deletes a driver "instance". The device is de-registered
125 with Card Services. If it has been released, all local data
126 structures are freed. Otherwise, the structures will be freed
127 when the device is released.
128
129======================================================================*/
130
131static void ide_detach(struct pcmcia_device *link)
132{
133 ide_info_t *info = link->priv;
134 ide_hwif_t *hwif = info->host->ports[0];
135 unsigned long data_addr, ctl_addr;
136
137 DEBUG(0, "ide_detach(0x%p)\n", link);
138
139 data_addr = hwif->io_ports.data_addr;
140 ctl_addr = hwif->io_ports.ctl_addr;
141
142 ide_release(link);
143
144 release_region(ctl_addr, 1);
145 release_region(data_addr, 8);
146
147 kfree(info);
148} /* ide_detach */
149
150static const struct ide_port_ops idecs_port_ops = {
151 .quirkproc = ide_undecoded_slave,
152};
153
154static const struct ide_port_info idecs_port_info = {
155 .port_ops = &idecs_port_ops,
156 .host_flags = IDE_HFLAG_NO_DMA,
157};
158
159static struct ide_host *idecs_register(unsigned long io, unsigned long ctl,
160 unsigned long irq, struct pcmcia_device *handle)
161{
162 struct ide_host *host;
163 ide_hwif_t *hwif;
164 int i, rc;
165 hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
166
167 if (!request_region(io, 8, DRV_NAME)) {
168 printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
169 DRV_NAME, io, io + 7);
170 return NULL;
171 }
172
173 if (!request_region(ctl, 1, DRV_NAME)) {
174 printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
175 DRV_NAME, ctl);
176 release_region(io, 8);
177 return NULL;
178 }
179
180 memset(&hw, 0, sizeof(hw));
181 ide_std_init_ports(&hw, io, ctl);
182 hw.irq = irq;
183 hw.chipset = ide_pci;
184 hw.dev = &handle->dev;
185
186 rc = ide_host_add(&idecs_port_info, hws, &host);
187 if (rc)
188 goto out_release;
189
190 hwif = host->ports[0];
191
192 if (hwif->present)
193 return host;
194
195 /* retry registration in case device is still spinning up */
196 for (i = 0; i < 10; i++) {
197 msleep(100);
198 ide_port_scan(hwif);
199 if (hwif->present)
200 return host;
201 }
202
203 return host;
204
205out_release:
206 release_region(ctl, 1);
207 release_region(io, 8);
208 return NULL;
209}
210
211/*======================================================================
212
213 ide_config() is scheduled to run after a CARD_INSERTION event
214 is received, to configure the PCMCIA socket, and to make the
215 ide device available to the system.
216
217======================================================================*/
218
219#define CS_CHECK(fn, ret) \
220do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
221
222struct pcmcia_config_check {
223 unsigned long ctl_base;
224 int skip_vcc;
225 int is_kme;
226};
227
228static int pcmcia_check_one_config(struct pcmcia_device *pdev,
229 cistpl_cftable_entry_t *cfg,
230 cistpl_cftable_entry_t *dflt,
231 unsigned int vcc,
232 void *priv_data)
233{
234 struct pcmcia_config_check *stk = priv_data;
235
236 /* Check for matching Vcc, unless we're desperate */
237 if (!stk->skip_vcc) {
238 if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
239 if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
240 return -ENODEV;
241 } else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) {
242 if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000)
243 return -ENODEV;
244 }
245 }
246
247 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
248 pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
249 else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM))
250 pdev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000;
251
252 if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
253 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
254 pdev->conf.ConfigIndex = cfg->index;
255 pdev->io.BasePort1 = io->win[0].base;
256 pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
257 if (!(io->flags & CISTPL_IO_16BIT))
258 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
259 if (io->nwin == 2) {
260 pdev->io.NumPorts1 = 8;
261 pdev->io.BasePort2 = io->win[1].base;
262 pdev->io.NumPorts2 = (stk->is_kme) ? 2 : 1;
263 if (pcmcia_request_io(pdev, &pdev->io) != 0)
264 return -ENODEV;
265 stk->ctl_base = pdev->io.BasePort2;
266 } else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
267 pdev->io.NumPorts1 = io->win[0].len;
268 pdev->io.NumPorts2 = 0;
269 if (pcmcia_request_io(pdev, &pdev->io) != 0)
270 return -ENODEV;
271 stk->ctl_base = pdev->io.BasePort1 + 0x0e;
272 } else
273 return -ENODEV;
274 /* If we've got this far, we're done */
275 return 0;
276 }
277 return -ENODEV;
278}
279
280static int ide_config(struct pcmcia_device *link)
281{
282 ide_info_t *info = link->priv;
283 struct pcmcia_config_check *stk = NULL;
284 int last_ret = 0, last_fn = 0, is_kme = 0;
285 unsigned long io_base, ctl_base;
286 struct ide_host *host;
287
288 DEBUG(0, "ide_config(0x%p)\n", link);
289
290 is_kme = ((link->manf_id == MANFID_KME) &&
291 ((link->card_id == PRODID_KME_KXLC005_A) ||
292 (link->card_id == PRODID_KME_KXLC005_B)));
293
294 stk = kzalloc(sizeof(*stk), GFP_KERNEL);
295 if (!stk)
296 goto err_mem;
297 stk->is_kme = is_kme;
298 stk->skip_vcc = io_base = ctl_base = 0;
299
300 if (pcmcia_loop_config(link, pcmcia_check_one_config, stk)) {
301 stk->skip_vcc = 1;
302 if (pcmcia_loop_config(link, pcmcia_check_one_config, stk))
303 goto failed; /* No suitable config found */
304 }
305 io_base = link->io.BasePort1;
306 ctl_base = stk->ctl_base;
307
308 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
309 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
310
311 /* disable drive interrupts during IDE probe */
312 outb(0x02, ctl_base);
313
314 /* special setup for KXLC005 card */
315 if (is_kme)
316 outb(0x81, ctl_base+1);
317
318 host = idecs_register(io_base, ctl_base, link->irq.AssignedIRQ, link);
319 if (host == NULL && link->io.NumPorts1 == 0x20) {
320 outb(0x02, ctl_base + 0x10);
321 host = idecs_register(io_base + 0x10, ctl_base + 0x10,
322 link->irq.AssignedIRQ, link);
323 }
324
325 if (host == NULL)
326 goto failed;
327
328 info->ndev = 1;
329 sprintf(info->node.dev_name, "hd%c", 'a' + host->ports[0]->index * 2);
330 info->node.major = host->ports[0]->major;
331 info->node.minor = 0;
332 info->host = host;
333 link->dev_node = &info->node;
334 printk(KERN_INFO "ide-cs: %s: Vpp = %d.%d\n",
335 info->node.dev_name, link->conf.Vpp / 10, link->conf.Vpp % 10);
336
337 kfree(stk);
338 return 0;
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, last_fn, last_ret);
346failed:
347 kfree(stk);
348 ide_release(link);
349 return -ENODEV;
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
360static void ide_release(struct pcmcia_device *link)
361{
362 ide_info_t *info = link->priv;
363 struct ide_host *host = info->host;
364
365 DEBUG(0, "ide_release(0x%p)\n", link);
366
367 if (info->ndev)
368 /* FIXME: if this fails we need to queue the cleanup somehow
369 -- need to investigate the required PCMCIA magic */
370 ide_host_remove(host);
371
372 info->ndev = 0;
373
374 pcmcia_disable_device(link);
375} /* ide_release */
376
377
378/*======================================================================
379
380 The card status event handler. Mostly, this schedules other
381 stuff to run after an event is received. A CARD_REMOVAL event
382 also sets some flags to discourage the ide drivers from
383 talking to the ports.
384
385======================================================================*/
386
387static struct pcmcia_device_id ide_ids[] = {
388 PCMCIA_DEVICE_FUNC_ID(4),
389 PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */
390 PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */
391 PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */
392 PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */
393 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
394 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
395 PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */
396 PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000), /* Kingston */
397 PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */
398 PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */
399 PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
400 PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */
401 PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */
402 PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
403 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */
404 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */
405 PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
406 PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
407 PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
408 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
409 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
410 PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
411 PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
412 PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
413 PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
414 PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591),
415 PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
416 PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
417 PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
418 PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
419 PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
420 PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
421 PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
422 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
423 PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b),
424 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
425 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
426 PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b),
427 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee),
428 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
429 PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
430 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
431 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
432 PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
433 PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),
434 PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),
435 PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),
436 PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
437 PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443),
438 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32),
439 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
440 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
441 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
442 PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
443 PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
444 PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
445 PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
446 PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
447 PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506),
448 PCMCIA_DEVICE_NULL,
449};
450MODULE_DEVICE_TABLE(pcmcia, ide_ids);
451
452static struct pcmcia_driver ide_cs_driver = {
453 .owner = THIS_MODULE,
454 .drv = {
455 .name = "ide-cs",
456 },
457 .probe = ide_probe,
458 .remove = ide_detach,
459 .id_table = ide_ids,
460};
461
462static int __init init_ide_cs(void)
463{
464 return pcmcia_register_driver(&ide_cs_driver);
465}
466
467static void __exit exit_ide_cs(void)
468{
469 pcmcia_unregister_driver(&ide_cs_driver);
470}
471
472late_initcall(init_ide_cs);
473module_exit(exit_ide_cs);