virtio_blk: don't bounce highmem requests
[linux-2.6/mini2440.git] / drivers / ide / ide-cs.c
blob9e47f3529d5555685bb829b1e92b7b621c15e624
1 /*======================================================================
3 A driver for PCMCIA IDE/ATA disk cards
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/
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.
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.
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.
30 ======================================================================*/
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>
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>
53 #define DRV_NAME "ide-cs"
55 /*====================================================================*/
57 /* Module parameters */
59 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
60 MODULE_DESCRIPTION("PCMCIA ATA/IDE card driver");
61 MODULE_LICENSE("Dual MPL/GPL");
63 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
65 #ifdef CONFIG_PCMCIA_DEBUG
66 INT_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
72 /*====================================================================*/
74 typedef 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;
81 static void ide_release(struct pcmcia_device *);
82 static int ide_config(struct pcmcia_device *);
84 static void ide_detach(struct pcmcia_device *p_dev);
89 /*======================================================================
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.
95 ======================================================================*/
97 static int ide_probe(struct pcmcia_device *link)
99 ide_info_t *info;
101 DEBUG(0, "ide_attach()\n");
103 /* Create new ide device */
104 info = kzalloc(sizeof(*info), GFP_KERNEL);
105 if (!info)
106 return -ENOMEM;
108 info->p_dev = link;
109 link->priv = info;
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;
119 return ide_config(link);
120 } /* ide_attach */
122 /*======================================================================
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.
129 ======================================================================*/
131 static void ide_detach(struct pcmcia_device *link)
133 ide_info_t *info = link->priv;
134 ide_hwif_t *hwif = info->host->ports[0];
135 unsigned long data_addr, ctl_addr;
137 DEBUG(0, "ide_detach(0x%p)\n", link);
139 data_addr = hwif->io_ports.data_addr;
140 ctl_addr = hwif->io_ports.ctl_addr;
142 ide_release(link);
144 release_region(ctl_addr, 1);
145 release_region(data_addr, 8);
147 kfree(info);
148 } /* ide_detach */
150 static const struct ide_port_ops idecs_port_ops = {
151 .quirkproc = ide_undecoded_slave,
154 static const struct ide_port_info idecs_port_info = {
155 .port_ops = &idecs_port_ops,
156 .host_flags = IDE_HFLAG_NO_DMA,
157 .irq_flags = IRQF_SHARED,
160 static struct ide_host *idecs_register(unsigned long io, unsigned long ctl,
161 unsigned long irq, struct pcmcia_device *handle)
163 struct ide_host *host;
164 ide_hwif_t *hwif;
165 int i, rc;
166 hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
168 if (!request_region(io, 8, DRV_NAME)) {
169 printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
170 DRV_NAME, io, io + 7);
171 return NULL;
174 if (!request_region(ctl, 1, DRV_NAME)) {
175 printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
176 DRV_NAME, ctl);
177 release_region(io, 8);
178 return NULL;
181 memset(&hw, 0, sizeof(hw));
182 ide_std_init_ports(&hw, io, ctl);
183 hw.irq = irq;
184 hw.chipset = ide_pci;
185 hw.dev = &handle->dev;
187 rc = ide_host_add(&idecs_port_info, hws, &host);
188 if (rc)
189 goto out_release;
191 hwif = host->ports[0];
193 if (hwif->present)
194 return host;
196 /* retry registration in case device is still spinning up */
197 for (i = 0; i < 10; i++) {
198 msleep(100);
199 ide_port_scan(hwif);
200 if (hwif->present)
201 return host;
204 return host;
206 out_release:
207 release_region(ctl, 1);
208 release_region(io, 8);
209 return NULL;
212 /*======================================================================
214 ide_config() is scheduled to run after a CARD_INSERTION event
215 is received, to configure the PCMCIA socket, and to make the
216 ide device available to the system.
218 ======================================================================*/
220 #define CS_CHECK(fn, ret) \
221 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
223 struct pcmcia_config_check {
224 unsigned long ctl_base;
225 int skip_vcc;
226 int is_kme;
229 static int pcmcia_check_one_config(struct pcmcia_device *pdev,
230 cistpl_cftable_entry_t *cfg,
231 cistpl_cftable_entry_t *dflt,
232 unsigned int vcc,
233 void *priv_data)
235 struct pcmcia_config_check *stk = priv_data;
237 /* Check for matching Vcc, unless we're desperate */
238 if (!stk->skip_vcc) {
239 if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
240 if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
241 return -ENODEV;
242 } else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) {
243 if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000)
244 return -ENODEV;
248 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
249 pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
250 else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM))
251 pdev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000;
253 if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
254 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
255 pdev->conf.ConfigIndex = cfg->index;
256 pdev->io.BasePort1 = io->win[0].base;
257 pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
258 if (!(io->flags & CISTPL_IO_16BIT))
259 pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
260 if (io->nwin == 2) {
261 pdev->io.NumPorts1 = 8;
262 pdev->io.BasePort2 = io->win[1].base;
263 pdev->io.NumPorts2 = (stk->is_kme) ? 2 : 1;
264 if (pcmcia_request_io(pdev, &pdev->io) != 0)
265 return -ENODEV;
266 stk->ctl_base = pdev->io.BasePort2;
267 } else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
268 pdev->io.NumPorts1 = io->win[0].len;
269 pdev->io.NumPorts2 = 0;
270 if (pcmcia_request_io(pdev, &pdev->io) != 0)
271 return -ENODEV;
272 stk->ctl_base = pdev->io.BasePort1 + 0x0e;
273 } else
274 return -ENODEV;
275 /* If we've got this far, we're done */
276 return 0;
278 return -ENODEV;
281 static int ide_config(struct pcmcia_device *link)
283 ide_info_t *info = link->priv;
284 struct pcmcia_config_check *stk = NULL;
285 int last_ret = 0, last_fn = 0, is_kme = 0;
286 unsigned long io_base, ctl_base;
287 struct ide_host *host;
289 DEBUG(0, "ide_config(0x%p)\n", link);
291 is_kme = ((link->manf_id == MANFID_KME) &&
292 ((link->card_id == PRODID_KME_KXLC005_A) ||
293 (link->card_id == PRODID_KME_KXLC005_B)));
295 stk = kzalloc(sizeof(*stk), GFP_KERNEL);
296 if (!stk)
297 goto err_mem;
298 stk->is_kme = is_kme;
299 stk->skip_vcc = io_base = ctl_base = 0;
301 if (pcmcia_loop_config(link, pcmcia_check_one_config, stk)) {
302 stk->skip_vcc = 1;
303 if (pcmcia_loop_config(link, pcmcia_check_one_config, stk))
304 goto failed; /* No suitable config found */
306 io_base = link->io.BasePort1;
307 ctl_base = stk->ctl_base;
309 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
310 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
312 /* disable drive interrupts during IDE probe */
313 outb(0x02, ctl_base);
315 /* special setup for KXLC005 card */
316 if (is_kme)
317 outb(0x81, ctl_base+1);
319 host = idecs_register(io_base, ctl_base, link->irq.AssignedIRQ, link);
320 if (host == NULL && link->io.NumPorts1 == 0x20) {
321 outb(0x02, ctl_base + 0x10);
322 host = idecs_register(io_base + 0x10, ctl_base + 0x10,
323 link->irq.AssignedIRQ, link);
326 if (host == NULL)
327 goto failed;
329 info->ndev = 1;
330 sprintf(info->node.dev_name, "hd%c", 'a' + host->ports[0]->index * 2);
331 info->node.major = host->ports[0]->major;
332 info->node.minor = 0;
333 info->host = host;
334 link->dev_node = &info->node;
335 printk(KERN_INFO "ide-cs: %s: Vpp = %d.%d\n",
336 info->node.dev_name, link->conf.Vpp / 10, link->conf.Vpp % 10);
338 kfree(stk);
339 return 0;
341 err_mem:
342 printk(KERN_NOTICE "ide-cs: ide_config failed memory allocation\n");
343 goto failed;
345 cs_failed:
346 cs_error(link, last_fn, last_ret);
347 failed:
348 kfree(stk);
349 ide_release(link);
350 return -ENODEV;
351 } /* ide_config */
353 /*======================================================================
355 After a card is removed, ide_release() will unregister the net
356 device, and release the PCMCIA configuration. If the device is
357 still open, this will be postponed until it is closed.
359 ======================================================================*/
361 static void ide_release(struct pcmcia_device *link)
363 ide_info_t *info = link->priv;
364 struct ide_host *host = info->host;
366 DEBUG(0, "ide_release(0x%p)\n", link);
368 if (info->ndev)
369 /* FIXME: if this fails we need to queue the cleanup somehow
370 -- need to investigate the required PCMCIA magic */
371 ide_host_remove(host);
373 info->ndev = 0;
375 pcmcia_disable_device(link);
376 } /* ide_release */
379 /*======================================================================
381 The card status event handler. Mostly, this schedules other
382 stuff to run after an event is received. A CARD_REMOVAL event
383 also sets some flags to discourage the ide drivers from
384 talking to the ports.
386 ======================================================================*/
388 static struct pcmcia_device_id ide_ids[] = {
389 PCMCIA_DEVICE_FUNC_ID(4),
390 PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */
391 PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */
392 PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */
393 PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */
394 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
395 PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
396 PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */
397 PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000), /* Kingston */
398 PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */
399 PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */
400 PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
401 PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */
402 PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */
403 PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
404 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */
405 PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */
406 PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
407 PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
408 PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
409 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
410 PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
411 PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
412 PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
413 PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
414 PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
415 PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591),
416 PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
417 PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
418 PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
419 PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
420 PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
421 PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
422 PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
423 PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
424 PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b),
425 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
426 PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
427 PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b),
428 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee),
429 PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
430 PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
431 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
432 PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
433 PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
434 PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),
435 PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),
436 PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),
437 PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
438 PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443),
439 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32),
440 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1),
441 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2),
442 PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8),
443 PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
444 PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918),
445 PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
446 PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
447 PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
448 PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506),
449 PCMCIA_DEVICE_NULL,
451 MODULE_DEVICE_TABLE(pcmcia, ide_ids);
453 static struct pcmcia_driver ide_cs_driver = {
454 .owner = THIS_MODULE,
455 .drv = {
456 .name = "ide-cs",
458 .probe = ide_probe,
459 .remove = ide_detach,
460 .id_table = ide_ids,
463 static int __init init_ide_cs(void)
465 return pcmcia_register_driver(&ide_cs_driver);
468 static void __exit exit_ide_cs(void)
470 pcmcia_unregister_driver(&ide_cs_driver);
473 late_initcall(init_ide_cs);
474 module_exit(exit_ide_cs);