1 /*======================================================================
3 A driver for PCMCIA IDE/ATA disk cards
5 ide-cs.c 1.3 2002/10/26 05:45:31
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/
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.
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.
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.
32 ======================================================================*/
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>
47 #include <asm/system.h>
49 #include <pcmcia/version.h>
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>
57 /*====================================================================*/
59 /* Module parameters */
61 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
62 MODULE_DESCRIPTION("PCMCIA ATA/IDE card driver");
63 MODULE_LICENSE("Dual MPL/GPL");
65 #define INT_MODULE_PARM(n, v) static int n = v; MODULE_PARM(n, "i")
67 /* Bit map of interrupts to choose from */
68 INT_MODULE_PARM(irq_mask, 0xdeb8);
69 static int irq_list[4] = { -1 };
70 MODULE_PARM(irq_list, "1-4i");
73 INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
74 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
75 static char *version =
76 "ide-cs.c 1.3 2002/10/26 05:45:31 (David Hinds)";
78 #define DEBUG(n, args...)
81 /*====================================================================*/
83 static const char ide_major[] = {
84 IDE0_MAJOR, IDE1_MAJOR, IDE2_MAJOR, IDE3_MAJOR,
85 IDE4_MAJOR, IDE5_MAJOR
88 typedef struct ide_info_t {
96 static void ide_release(dev_link_t *);
97 static int ide_event(event_t event, int priority,
98 event_callback_args_t *args);
100 static dev_info_t dev_info = "ide-cs";
102 static dev_link_t *ide_attach(void);
103 static void ide_detach(dev_link_t *);
105 static dev_link_t *dev_list = NULL;
107 /*======================================================================
109 ide_attach() creates an "instance" of the driver, allocating
110 local data structures for one device. The device is registered
113 ======================================================================*/
115 static dev_link_t *ide_attach(void)
119 client_reg_t client_reg;
122 DEBUG(0, "ide_attach()\n");
124 /* Create new ide device */
125 info = kmalloc(sizeof(*info), GFP_KERNEL);
126 if (!info) return NULL;
127 memset(info, 0, sizeof(*info));
128 link = &info->link; link->priv = info;
130 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
131 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
132 link->io.IOAddrLines = 3;
133 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
134 link->irq.IRQInfo1 = IRQ_INFO2_VALID|IRQ_LEVEL_ID;
135 if (irq_list[0] == -1)
136 link->irq.IRQInfo2 = irq_mask;
138 for (i = 0; i < 4; i++)
139 link->irq.IRQInfo2 |= 1 << irq_list[i];
140 link->conf.Attributes = CONF_ENABLE_IRQ;
142 link->conf.IntType = INT_MEMORY_AND_IO;
144 /* Register with Card Services */
145 link->next = dev_list;
147 client_reg.dev_info = &dev_info;
148 client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
149 client_reg.EventMask =
150 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
151 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
152 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
153 client_reg.event_handler = &ide_event;
154 client_reg.Version = 0x0210;
155 client_reg.event_callback_args.client_data = link;
156 ret = pcmcia_register_client(&link->handle, &client_reg);
157 if (ret != CS_SUCCESS) {
158 cs_error(link->handle, RegisterClient, ret);
166 /*======================================================================
168 This deletes a driver "instance". The device is de-registered
169 with Card Services. If it has been released, all local data
170 structures are freed. Otherwise, the structures will be freed
171 when the device is released.
173 ======================================================================*/
175 static void ide_detach(dev_link_t *link)
180 DEBUG(0, "ide_detach(0x%p)\n", link);
182 /* Locate device structure */
183 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
184 if (*linkp == link) break;
188 if (link->state & DEV_CONFIG)
192 ret = pcmcia_deregister_client(link->handle);
193 if (ret != CS_SUCCESS)
194 cs_error(link->handle, DeregisterClient, ret);
197 /* Unlink, free device structure */
203 static int idecs_register(unsigned long io, unsigned long ctl, unsigned long irq, ide_hwif_t **hwif)
206 memset(&hw, 0, sizeof(hw));
207 ide_init_hwif_ports(&hw, io, ctl, NULL);
209 hw.chipset = ide_pci;
210 return ide_register_hw_with_fixup(&hw, hwif, ide_undecoded_slave);
213 /*======================================================================
215 ide_config() is scheduled to run after a CARD_INSERTION event
216 is received, to configure the PCMCIA socket, and to make the
217 ide device available to the system.
219 ======================================================================*/
221 #define CS_CHECK(fn, ret) \
222 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
224 void ide_config(dev_link_t *link)
226 client_handle_t handle = link->handle;
227 ide_info_t *info = link->priv;
234 cistpl_cftable_entry_t dflt;
236 cistpl_cftable_entry_t *cfg;
237 int i, pass, last_ret = 0, last_fn = 0, hd, is_kme = 0;
238 unsigned long io_base, ctl_base;
240 DEBUG(0, "ide_config(0x%p)\n", link);
242 stk = kmalloc(sizeof(*stk), GFP_KERNEL);
243 if (!stk) goto err_mem;
244 memset(stk, 0, sizeof(*stk));
245 cfg = &stk->parse.cftable_entry;
247 tuple.TupleData = (cisdata_t *)&stk->buf;
248 tuple.TupleOffset = 0;
249 tuple.TupleDataMax = 255;
250 tuple.Attributes = 0;
251 tuple.DesiredTuple = CISTPL_CONFIG;
252 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
253 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
254 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &stk->parse));
255 link->conf.ConfigBase = stk->parse.config.base;
256 link->conf.Present = stk->parse.config.rmask[0];
258 tuple.DesiredTuple = CISTPL_MANFID;
259 if (!pcmcia_get_first_tuple(handle, &tuple) &&
260 !pcmcia_get_tuple_data(handle, &tuple) &&
261 !pcmcia_parse_tuple(handle, &tuple, &stk->parse))
262 is_kme = ((stk->parse.manfid.manf == MANFID_KME) &&
263 ((stk->parse.manfid.card == PRODID_KME_KXLC005_A) ||
264 (stk->parse.manfid.card == PRODID_KME_KXLC005_B)));
267 link->state |= DEV_CONFIG;
269 /* Not sure if this is right... look up the current Vcc */
270 CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &stk->conf));
271 link->conf.Vcc = stk->conf.Vcc;
273 pass = io_base = ctl_base = 0;
274 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
275 tuple.Attributes = 0;
276 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
278 if (pcmcia_get_tuple_data(handle, &tuple) != 0) goto next_entry;
279 if (pcmcia_parse_tuple(handle, &tuple, &stk->parse) != 0) goto next_entry;
281 /* Check for matching Vcc, unless we're desperate */
283 if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
284 if (stk->conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
286 } else if (stk->dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) {
287 if (stk->conf.Vcc != stk->dflt.vcc.param[CISTPL_POWER_VNOM] / 10000)
292 if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
293 link->conf.Vpp1 = link->conf.Vpp2 =
294 cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
295 else if (stk->dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
296 link->conf.Vpp1 = link->conf.Vpp2 =
297 stk->dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;
299 if ((cfg->io.nwin > 0) || (stk->dflt.io.nwin > 0)) {
300 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &stk->dflt.io;
301 link->conf.ConfigIndex = cfg->index;
302 link->io.BasePort1 = io->win[0].base;
303 link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
304 if (!(io->flags & CISTPL_IO_16BIT))
305 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
307 link->io.NumPorts1 = 8;
308 link->io.BasePort2 = io->win[1].base;
309 link->io.NumPorts2 = (is_kme) ? 2 : 1;
310 if (pcmcia_request_io(link->handle, &link->io) != 0)
312 io_base = link->io.BasePort1;
313 ctl_base = link->io.BasePort2;
314 } else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
315 link->io.NumPorts1 = io->win[0].len;
316 link->io.NumPorts2 = 0;
317 if (pcmcia_request_io(link->handle, &link->io) != 0)
319 io_base = link->io.BasePort1;
320 ctl_base = link->io.BasePort1 + 0x0e;
321 } else goto next_entry;
322 /* If we've got this far, we're done */
327 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
328 memcpy(&stk->dflt, cfg, sizeof(stk->dflt));
330 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
331 } else if (pcmcia_get_next_tuple(handle, &tuple) != 0) {
332 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
333 memset(&stk->dflt, 0, sizeof(stk->dflt));
338 CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
339 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
341 /* disable drive interrupts during IDE probe */
342 outb(0x02, ctl_base);
344 /* special setup for KXLC005 card */
346 outb(0x81, ctl_base+1);
348 /* retry registration in case device is still spinning up
350 FIXME: now handled by IDE layer... ?? */
352 for (hd = -1, i = 0; i < 10; i++) {
353 hd = idecs_register(io_base, ctl_base, link->irq.AssignedIRQ, &hwif);
355 if (link->io.NumPorts1 == 0x20) {
356 outb(0x02, ctl_base + 0x10);
357 hd = idecs_register(io_base + 0x10, ctl_base + 0x10,
358 link->irq.AssignedIRQ, &hwif);
365 __set_current_state(TASK_UNINTERRUPTIBLE);
366 schedule_timeout(HZ/10);
370 printk(KERN_NOTICE "ide-cs: ide_register() at 0x%3lx & 0x%3lx"
371 ", irq %u failed\n", io_base, ctl_base,
372 link->irq.AssignedIRQ);
377 sprintf(info->node.dev_name, "hd%c", 'a' + (hd * 2));
378 info->node.major = ide_major[hd];
379 info->node.minor = 0;
382 link->dev = &info->node;
383 printk(KERN_INFO "ide-cs: %s: Vcc = %d.%d, Vpp = %d.%d\n",
384 info->node.dev_name, link->conf.Vcc / 10, link->conf.Vcc % 10,
385 link->conf.Vpp1 / 10, link->conf.Vpp1 % 10);
387 link->state &= ~DEV_CONFIG_PENDING;
392 printk(KERN_NOTICE "ide-cs: ide_config failed memory allocation\n");
396 cs_error(link->handle, last_fn, last_ret);
400 link->state &= ~DEV_CONFIG_PENDING;
403 /*======================================================================
405 After a card is removed, ide_release() will unregister the net
406 device, and release the PCMCIA configuration. If the device is
407 still open, this will be postponed until it is closed.
409 ======================================================================*/
411 void ide_release(dev_link_t *link)
413 ide_info_t *info = link->priv;
415 DEBUG(0, "ide_release(0x%p)\n", link);
418 /* FIXME: if this fails we need to queue the cleanup somehow
419 -- need to investigate the required PCMCIA magic */
420 ide_unregister_hwif(info->hwif);
425 pcmcia_release_configuration(link->handle);
426 pcmcia_release_io(link->handle, &link->io);
427 pcmcia_release_irq(link->handle, &link->irq);
429 link->state &= ~DEV_CONFIG;
433 /*======================================================================
435 The card status event handler. Mostly, this schedules other
436 stuff to run after an event is received. A CARD_REMOVAL event
437 also sets some flags to discourage the ide drivers from
438 talking to the ports.
440 ======================================================================*/
442 int ide_event(event_t event, int priority,
443 event_callback_args_t *args)
445 dev_link_t *link = args->client_data;
447 DEBUG(1, "ide_event(0x%06x)\n", event);
450 case CS_EVENT_CARD_REMOVAL:
451 link->state &= ~DEV_PRESENT;
452 if (link->state & DEV_CONFIG)
455 case CS_EVENT_CARD_INSERTION:
456 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
459 case CS_EVENT_PM_SUSPEND:
460 link->state |= DEV_SUSPEND;
461 /* Fall through... */
462 case CS_EVENT_RESET_PHYSICAL:
463 if (link->state & DEV_CONFIG)
464 pcmcia_release_configuration(link->handle);
466 case CS_EVENT_PM_RESUME:
467 link->state &= ~DEV_SUSPEND;
468 /* Fall through... */
469 case CS_EVENT_CARD_RESET:
471 pcmcia_request_configuration(link->handle, &link->conf);
477 static struct pcmcia_driver ide_cs_driver = {
478 .owner = THIS_MODULE,
482 .attach = ide_attach,
483 .detach = ide_detach,
486 static int __init init_ide_cs(void)
488 return pcmcia_register_driver(&ide_cs_driver);
491 static void __exit exit_ide_cs(void)
493 pcmcia_unregister_driver(&ide_cs_driver);
494 while (dev_list != NULL)
495 ide_detach(dev_list);
498 module_init(init_ide_cs);
499 module_exit(exit_ide_cs);