blob: a4cd9adfcbc0a543462158b76a796a7f96aa811a [file] [log] [blame]
Dominik Brodowski1a8d4662005-06-27 16:28:53 -07001/*
2 * PCMCIA 16-bit resource management functions
3 *
4 * The initial developer of the original code is David A. Hinds
5 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
6 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
7 *
8 * Copyright (C) 1999 David A. Hinds
9 * Copyright (C) 2004-2005 Dominik Brodowski
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
14 *
15 */
16
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070017#include <linux/module.h>
18#include <linux/kernel.h>
19#include <linux/interrupt.h>
20#include <linux/delay.h>
21#include <linux/pci.h>
22#include <linux/device.h>
Dominik Brodowski91284222009-10-18 23:32:33 +020023#include <linux/netdevice.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090024#include <linux/slab.h>
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070025
Dominik Brodowski6f0f38c2010-04-08 20:33:16 +020026#include <asm/irq.h>
27
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070028#include <pcmcia/cs_types.h>
29#include <pcmcia/ss.h>
30#include <pcmcia/cs.h>
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070031#include <pcmcia/cistpl.h>
32#include <pcmcia/cisreg.h>
33#include <pcmcia/ds.h>
34
35#include "cs_internal.h"
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070036
37
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070038/* Access speed for IO windows */
Dominik Brodowski9fea84f2009-12-07 22:11:45 +010039static int io_speed;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070040module_param(io_speed, int, 0444);
41
42
Dominik Brodowskia3ac9af2010-01-06 14:03:03 +010043int pcmcia_validate_mem(struct pcmcia_socket *s)
44{
45 if (s->resource_ops->validate_mem)
46 return s->resource_ops->validate_mem(s);
47 /* if there is no callback, we can assume that everything is OK */
48 return 0;
49}
50
51struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align,
52 int low, struct pcmcia_socket *s)
53{
54 if (s->resource_ops->find_mem)
55 return s->resource_ops->find_mem(base, num, align, low, s);
56 return NULL;
57}
58
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070059
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070060/** alloc_io_space
61 *
62 * Special stuff for managing IO windows, because they are scarce
63 */
64
Olof Johanssonecb8a842008-02-04 22:27:34 -080065static int alloc_io_space(struct pcmcia_socket *s, u_int attr,
66 unsigned int *base, unsigned int num, u_int lines)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070067{
Dominik Brodowskib19a7272010-03-20 13:10:47 +010068 unsigned int align;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070069
70 align = (*base) ? (lines ? 1<<lines : 0) : 1;
71 if (align && (align < num)) {
72 if (*base) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +020073 dev_dbg(&s->dev, "odd IO request: num %#x align %#x\n",
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070074 num, align);
75 align = 0;
76 } else
Dominik Brodowski9fea84f2009-12-07 22:11:45 +010077 while (align && (align < num))
78 align <<= 1;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070079 }
80 if (*base & ~(align-1)) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +020081 dev_dbg(&s->dev, "odd IO request: base %#x align %#x\n",
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070082 *base, align);
83 align = 0;
84 }
Dominik Brodowskib19a7272010-03-20 13:10:47 +010085
86 return s->resource_ops->find_io(s, attr, base, num, align);
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070087} /* alloc_io_space */
88
89
Olof Johanssonecb8a842008-02-04 22:27:34 -080090static void release_io_space(struct pcmcia_socket *s, unsigned int base,
91 unsigned int num)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -070092{
93 int i;
94
95 for (i = 0; i < MAX_IO_WIN; i++) {
Dominik Brodowskic7d00692006-01-15 08:04:43 +010096 if (!s->io[i].res)
97 continue;
98 if ((s->io[i].res->start <= base) &&
99 (s->io[i].res->end >= base+num-1)) {
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700100 s->io[i].InUse -= num;
101 /* Free the window if no one else is using it */
102 if (s->io[i].InUse == 0) {
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700103 release_resource(s->io[i].res);
104 kfree(s->io[i].res);
105 s->io[i].res = NULL;
106 }
107 }
108 }
109} /* release_io_space */
110
111
112/** pccard_access_configuration_register
113 *
114 * Access_configuration_register() reads and writes configuration
115 * registers in attribute memory. Memory window 0 is reserved for
116 * this and the tuple reading services.
117 */
118
Dominik Brodowski855cdf12006-01-10 20:48:59 +0100119int pcmcia_access_configuration_register(struct pcmcia_device *p_dev,
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700120 conf_reg_t *reg)
121{
Dominik Brodowski855cdf12006-01-10 20:48:59 +0100122 struct pcmcia_socket *s;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700123 config_t *c;
124 int addr;
125 u_char val;
Dominik Brodowski059f6672010-03-30 18:07:50 +0200126 int ret = 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700127
Dominik Brodowski855cdf12006-01-10 20:48:59 +0100128 if (!p_dev || !p_dev->function_config)
Dominik Brodowski3939c1ef2008-08-03 11:10:56 +0200129 return -EINVAL;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700130
Dominik Brodowski855cdf12006-01-10 20:48:59 +0100131 s = p_dev->socket;
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100132
133 mutex_lock(&s->ops_mutex);
Dominik Brodowski855cdf12006-01-10 20:48:59 +0100134 c = p_dev->function_config;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700135
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200136 if (!(c->state & CONFIG_LOCKED)) {
137 dev_dbg(&s->dev, "Configuration isnt't locked\n");
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100138 mutex_unlock(&s->ops_mutex);
Dominik Brodowski943f70f2008-08-03 11:23:42 +0200139 return -EACCES;
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200140 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700141
142 addr = (c->ConfigBase + reg->Offset) >> 1;
143
144 switch (reg->Action) {
145 case CS_READ:
Dominik Brodowski059f6672010-03-30 18:07:50 +0200146 ret = pcmcia_read_cis_mem(s, 1, addr, 1, &val);
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700147 reg->Value = val;
148 break;
149 case CS_WRITE:
150 val = reg->Value;
151 pcmcia_write_cis_mem(s, 1, addr, 1, &val);
152 break;
153 default:
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200154 dev_dbg(&s->dev, "Invalid conf register request\n");
Dominik Brodowski059f6672010-03-30 18:07:50 +0200155 ret = -EINVAL;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700156 break;
157 }
Dominik Brodowski059f6672010-03-30 18:07:50 +0200158 mutex_unlock(&s->ops_mutex);
159 return ret;
Dominik Brodowski855cdf12006-01-10 20:48:59 +0100160} /* pcmcia_access_configuration_register */
Dominik Brodowski34481392005-06-27 16:28:54 -0700161EXPORT_SYMBOL(pcmcia_access_configuration_register);
162
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700163
Magnus Damm868575d2006-12-13 19:46:43 +0900164int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t wh,
165 memreq_t *req)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700166{
Magnus Damm0bdf9b32006-12-13 19:46:53 +0900167 struct pcmcia_socket *s = p_dev->socket;
Dominik Brodowski6b8e0872010-01-12 21:42:51 +0100168 int ret;
Magnus Damm868575d2006-12-13 19:46:43 +0900169
Magnus Damm0bdf9b32006-12-13 19:46:53 +0900170 wh--;
171 if (wh >= MAX_WIN)
Dominik Brodowskiffb8da22008-08-03 11:18:00 +0200172 return -EINVAL;
Dominik Brodowski610e2372008-08-03 11:58:53 +0200173 if (req->Page != 0) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200174 dev_dbg(&s->dev, "failure: requested page is zero\n");
Dominik Brodowski610e2372008-08-03 11:58:53 +0200175 return -EINVAL;
176 }
Dominik Brodowski6b8e0872010-01-12 21:42:51 +0100177 mutex_lock(&s->ops_mutex);
Dominik Brodowski82f88e32009-11-03 01:16:12 +0100178 s->win[wh].card_start = req->CardOffset;
Dominik Brodowski6b8e0872010-01-12 21:42:51 +0100179 ret = s->ops->set_mem_map(s, &s->win[wh]);
180 if (ret)
181 dev_warn(&s->dev, "failed to set_mem_map\n");
182 mutex_unlock(&s->ops_mutex);
183 return ret;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700184} /* pcmcia_map_mem_page */
185EXPORT_SYMBOL(pcmcia_map_mem_page);
186
187
188/** pcmcia_modify_configuration
189 *
190 * Modify a locked socket configuration
191 */
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700192int pcmcia_modify_configuration(struct pcmcia_device *p_dev,
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700193 modconf_t *mod)
194{
195 struct pcmcia_socket *s;
196 config_t *c;
Jiri Slaby4e06e242010-03-16 15:57:44 +0100197 int ret;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700198
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700199 s = p_dev->socket;
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100200
201 mutex_lock(&s->ops_mutex);
Dominik Brodowskidbb22f02006-01-10 20:41:27 +0100202 c = p_dev->function_config;
203
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200204 if (!(s->state & SOCKET_PRESENT)) {
205 dev_dbg(&s->dev, "No card present\n");
Jiri Slaby4e06e242010-03-16 15:57:44 +0100206 ret = -ENODEV;
207 goto unlock;
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200208 }
209 if (!(c->state & CONFIG_LOCKED)) {
210 dev_dbg(&s->dev, "Configuration isnt't locked\n");
Jiri Slaby4e06e242010-03-16 15:57:44 +0100211 ret = -EACCES;
212 goto unlock;
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200213 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700214
Dominik Brodowski0cb3c492010-03-06 20:42:35 +0100215 if (mod->Attributes & (CONF_IRQ_CHANGE_VALID | CONF_VCC_CHANGE_VALID)) {
216 dev_dbg(&s->dev,
217 "changing Vcc or IRQ is not allowed at this time\n");
Jiri Slaby4e06e242010-03-16 15:57:44 +0100218 ret = -EINVAL;
219 goto unlock;
Dominik Brodowskid8b0a492008-08-03 10:56:13 +0200220 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700221
222 /* We only allow changing Vpp1 and Vpp2 to the same value */
223 if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) &&
224 (mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
Ilpo Järvinen60df3de82008-10-30 13:02:54 +0200225 if (mod->Vpp1 != mod->Vpp2) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200226 dev_dbg(&s->dev, "Vpp1 and Vpp2 must be the same\n");
Jiri Slaby4e06e242010-03-16 15:57:44 +0100227 ret = -EINVAL;
228 goto unlock;
Ilpo Järvinen60df3de82008-10-30 13:02:54 +0200229 }
Dominik Brodowski71ed90d2005-09-09 13:03:27 -0700230 s->socket.Vpp = mod->Vpp1;
Dominik Brodowskid8b0a492008-08-03 10:56:13 +0200231 if (s->ops->set_socket(s, &s->socket)) {
232 dev_printk(KERN_WARNING, &s->dev,
233 "Unable to set VPP\n");
Jiri Slaby4e06e242010-03-16 15:57:44 +0100234 ret = -EIO;
235 goto unlock;
Dominik Brodowskid8b0a492008-08-03 10:56:13 +0200236 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700237 } else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) ||
Dominik Brodowskid8b0a492008-08-03 10:56:13 +0200238 (mod->Attributes & CONF_VPP2_CHANGE_VALID)) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200239 dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n");
Jiri Slaby4e06e242010-03-16 15:57:44 +0100240 ret = -EINVAL;
241 goto unlock;
Dominik Brodowskid8b0a492008-08-03 10:56:13 +0200242 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700243
Dominik Brodowski4bbed522006-01-15 11:18:12 +0100244 if (mod->Attributes & CONF_IO_CHANGE_WIDTH) {
245 pccard_io_map io_off = { 0, 0, 0, 0, 1 };
246 pccard_io_map io_on;
247 int i;
248
249 io_on.speed = io_speed;
250 for (i = 0; i < MAX_IO_WIN; i++) {
251 if (!s->io[i].res)
252 continue;
253 io_off.map = i;
254 io_on.map = i;
255
256 io_on.flags = MAP_ACTIVE | IO_DATA_PATH_WIDTH_8;
257 io_on.start = s->io[i].res->start;
258 io_on.stop = s->io[i].res->end;
259
260 s->ops->set_io_map(s, &io_off);
261 mdelay(40);
262 s->ops->set_io_map(s, &io_on);
263 }
264 }
Jiri Slaby4e06e242010-03-16 15:57:44 +0100265 ret = 0;
266unlock:
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100267 mutex_unlock(&s->ops_mutex);
Dominik Brodowski4bbed522006-01-15 11:18:12 +0100268
Jiri Slaby4e06e242010-03-16 15:57:44 +0100269 return ret;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700270} /* modify_configuration */
271EXPORT_SYMBOL(pcmcia_modify_configuration);
272
273
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700274int pcmcia_release_configuration(struct pcmcia_device *p_dev)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700275{
276 pccard_io_map io = { 0, 0, 0, 0, 1 };
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700277 struct pcmcia_socket *s = p_dev->socket;
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100278 config_t *c;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700279 int i;
280
Dominik Brodowski9e86749c2010-01-16 00:26:33 +0100281 mutex_lock(&s->ops_mutex);
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100282 c = p_dev->function_config;
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100283 if (p_dev->_locked) {
284 p_dev->_locked = 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700285 if (--(s->lock_count) == 0) {
286 s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */
287 s->socket.Vpp = 0;
288 s->socket.io_irq = 0;
289 s->ops->set_socket(s, &s->socket);
290 }
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100291 }
292 if (c->state & CONFIG_LOCKED) {
293 c->state &= ~CONFIG_LOCKED;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700294 if (c->state & CONFIG_IO_REQ)
295 for (i = 0; i < MAX_IO_WIN; i++) {
Dominik Brodowskic7d00692006-01-15 08:04:43 +0100296 if (!s->io[i].res)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700297 continue;
298 s->io[i].Config--;
299 if (s->io[i].Config != 0)
300 continue;
301 io.map = i;
302 s->ops->set_io_map(s, &io);
303 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700304 }
Dominik Brodowski9e86749c2010-01-16 00:26:33 +0100305 mutex_unlock(&s->ops_mutex);
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700306
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200307 return 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700308} /* pcmcia_release_configuration */
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700309
310
311/** pcmcia_release_io
312 *
313 * Release_io() releases the I/O ranges allocated by a client. This
314 * may be invoked some time after a card ejection has already dumped
315 * the actual socket configuration, so if the client is "stale", we
316 * don't bother checking the port ranges against the current socket
317 * values.
318 */
Adrian Bunkb4c88402006-01-18 23:53:13 -0800319static int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700320{
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700321 struct pcmcia_socket *s = p_dev->socket;
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100322 int ret = -EINVAL;
323 config_t *c;
324
325 mutex_lock(&s->ops_mutex);
326 c = p_dev->function_config;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700327
Dominik Brodowski9fea84f2009-12-07 22:11:45 +0100328 if (!p_dev->_io)
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100329 goto out;
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100330
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100331 p_dev->_io = 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700332
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100333 if ((c->io.BasePort1 != req->BasePort1) ||
334 (c->io.NumPorts1 != req->NumPorts1) ||
335 (c->io.BasePort2 != req->BasePort2) ||
336 (c->io.NumPorts2 != req->NumPorts2))
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100337 goto out;
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100338
339 c->state &= ~CONFIG_IO_REQ;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700340
341 release_io_space(s, req->BasePort1, req->NumPorts1);
342 if (req->NumPorts2)
343 release_io_space(s, req->BasePort2, req->NumPorts2);
344
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100345out:
346 mutex_unlock(&s->ops_mutex);
347
348 return ret;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700349} /* pcmcia_release_io */
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700350
351
Magnus Dammf5560da2006-12-13 19:46:38 +0900352int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700353{
Magnus Damm0bdf9b32006-12-13 19:46:53 +0900354 struct pcmcia_socket *s = p_dev->socket;
Dominik Brodowski82f88e32009-11-03 01:16:12 +0100355 pccard_mem_map *win;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700356
Magnus Damm0bdf9b32006-12-13 19:46:53 +0900357 wh--;
358 if (wh >= MAX_WIN)
Dominik Brodowskiffb8da22008-08-03 11:18:00 +0200359 return -EINVAL;
Magnus Damm0bdf9b32006-12-13 19:46:53 +0900360
Dominik Brodowski6b8e0872010-01-12 21:42:51 +0100361 mutex_lock(&s->ops_mutex);
Magnus Damm0bdf9b32006-12-13 19:46:53 +0900362 win = &s->win[wh];
363
364 if (!(p_dev->_win & CLIENT_WIN_REQ(wh))) {
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200365 dev_dbg(&s->dev, "not releasing unknown window\n");
Dominik Brodowski6b8e0872010-01-12 21:42:51 +0100366 mutex_unlock(&s->ops_mutex);
Dominik Brodowskiffb8da22008-08-03 11:18:00 +0200367 return -EINVAL;
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200368 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700369
370 /* Shut down memory window */
Dominik Brodowski82f88e32009-11-03 01:16:12 +0100371 win->flags &= ~MAP_ACTIVE;
372 s->ops->set_mem_map(s, win);
Magnus Damm0bdf9b32006-12-13 19:46:53 +0900373 s->state &= ~SOCKET_WIN_REQ(wh);
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700374
375 /* Release system memory */
Dominik Brodowski82f88e32009-11-03 01:16:12 +0100376 if (win->res) {
377 release_resource(win->res);
378 kfree(win->res);
379 win->res = NULL;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700380 }
Magnus Damm0bdf9b32006-12-13 19:46:53 +0900381 p_dev->_win &= ~CLIENT_WIN_REQ(wh);
Dominik Brodowski6b8e0872010-01-12 21:42:51 +0100382 mutex_unlock(&s->ops_mutex);
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700383
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200384 return 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700385} /* pcmcia_release_window */
386EXPORT_SYMBOL(pcmcia_release_window);
387
388
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700389int pcmcia_request_configuration(struct pcmcia_device *p_dev,
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700390 config_req_t *req)
391{
392 int i;
393 u_int base;
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700394 struct pcmcia_socket *s = p_dev->socket;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700395 config_t *c;
396 pccard_io_map iomap;
397
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700398 if (!(s->state & SOCKET_PRESENT))
Joe Perchesd598de02009-06-28 09:26:41 -0700399 return -ENODEV;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700400
Dominik Brodowskide6405e2008-08-03 10:47:59 +0200401 if (req->IntType & INT_CARDBUS) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200402 dev_dbg(&s->dev, "IntType may not be INT_CARDBUS\n");
Dominik Brodowskide6405e2008-08-03 10:47:59 +0200403 return -EINVAL;
404 }
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100405
406 mutex_lock(&s->ops_mutex);
Dominik Brodowskidbb22f02006-01-10 20:41:27 +0100407 c = p_dev->function_config;
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200408 if (c->state & CONFIG_LOCKED) {
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100409 mutex_unlock(&s->ops_mutex);
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200410 dev_dbg(&s->dev, "Configuration is locked\n");
Dominik Brodowski943f70f2008-08-03 11:23:42 +0200411 return -EACCES;
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200412 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700413
414 /* Do power control. We don't allow changes in Vcc. */
Dominik Brodowski70294b42006-01-15 12:43:16 +0100415 s->socket.Vpp = req->Vpp;
Dominik Brodowskid8b0a492008-08-03 10:56:13 +0200416 if (s->ops->set_socket(s, &s->socket)) {
Dominik Brodowski9e86749c2010-01-16 00:26:33 +0100417 mutex_unlock(&s->ops_mutex);
Dominik Brodowskid8b0a492008-08-03 10:56:13 +0200418 dev_printk(KERN_WARNING, &s->dev,
419 "Unable to set socket state\n");
420 return -EINVAL;
421 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700422
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700423 /* Pick memory or I/O card, DMA mode, interrupt */
424 c->IntType = req->IntType;
425 c->Attributes = req->Attributes;
426 if (req->IntType & INT_MEMORY_AND_IO)
427 s->socket.flags |= SS_IOCARD;
428 if (req->IntType & INT_ZOOMED_VIDEO)
429 s->socket.flags |= SS_ZVCARD | SS_IOCARD;
430 if (req->Attributes & CONF_ENABLE_DMA)
431 s->socket.flags |= SS_DMA_MODE;
432 if (req->Attributes & CONF_ENABLE_SPKR)
433 s->socket.flags |= SS_SPKR_ENA;
434 if (req->Attributes & CONF_ENABLE_IRQ)
Dominik Brodowski6f840af2010-03-07 10:51:23 +0100435 s->socket.io_irq = s->pcmcia_irq;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700436 else
437 s->socket.io_irq = 0;
438 s->ops->set_socket(s, &s->socket);
439 s->lock_count++;
440
441 /* Set up CIS configuration registers */
442 base = c->ConfigBase = req->ConfigBase;
Dominik Brodowski1ae9c7d2006-01-10 20:40:40 +0100443 c->CardValues = req->Present;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700444 if (req->Present & PRESENT_COPY) {
445 c->Copy = req->Copy;
446 pcmcia_write_cis_mem(s, 1, (base + CISREG_SCR)>>1, 1, &c->Copy);
447 }
448 if (req->Present & PRESENT_OPTION) {
449 if (s->functions == 1) {
450 c->Option = req->ConfigIndex & COR_CONFIG_MASK;
451 } else {
452 c->Option = req->ConfigIndex & COR_MFC_CONFIG_MASK;
453 c->Option |= COR_FUNC_ENA|COR_IREQ_ENA;
454 if (req->Present & PRESENT_IOBASE_0)
455 c->Option |= COR_ADDR_DECODE;
456 }
Dominik Brodowskia7debe72010-03-07 10:58:29 +0100457 if ((req->Attributes & CONF_ENABLE_IRQ) &&
458 !(req->Attributes & CONF_ENABLE_PULSE_IRQ))
459 c->Option |= COR_LEVEL_REQ;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700460 pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &c->Option);
461 mdelay(40);
462 }
463 if (req->Present & PRESENT_STATUS) {
464 c->Status = req->Status;
465 pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &c->Status);
466 }
467 if (req->Present & PRESENT_PIN_REPLACE) {
468 c->Pin = req->Pin;
469 pcmcia_write_cis_mem(s, 1, (base + CISREG_PRR)>>1, 1, &c->Pin);
470 }
471 if (req->Present & PRESENT_EXT_STATUS) {
472 c->ExtStatus = req->ExtStatus;
473 pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1, &c->ExtStatus);
474 }
475 if (req->Present & PRESENT_IOBASE_0) {
476 u_char b = c->io.BasePort1 & 0xff;
477 pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b);
478 b = (c->io.BasePort1 >> 8) & 0xff;
479 pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_1)>>1, 1, &b);
480 }
481 if (req->Present & PRESENT_IOSIZE) {
482 u_char b = c->io.NumPorts1 + c->io.NumPorts2 - 1;
483 pcmcia_write_cis_mem(s, 1, (base + CISREG_IOSIZE)>>1, 1, &b);
484 }
485
486 /* Configure I/O windows */
487 if (c->state & CONFIG_IO_REQ) {
488 iomap.speed = io_speed;
489 for (i = 0; i < MAX_IO_WIN; i++)
Dominik Brodowskic7d00692006-01-15 08:04:43 +0100490 if (s->io[i].res) {
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700491 iomap.map = i;
492 iomap.flags = MAP_ACTIVE;
Dominik Brodowskic7d00692006-01-15 08:04:43 +0100493 switch (s->io[i].res->flags & IO_DATA_PATH_WIDTH) {
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700494 case IO_DATA_PATH_WIDTH_16:
495 iomap.flags |= MAP_16BIT; break;
496 case IO_DATA_PATH_WIDTH_AUTO:
497 iomap.flags |= MAP_AUTOSZ; break;
498 default:
499 break;
500 }
Dominik Brodowskic7d00692006-01-15 08:04:43 +0100501 iomap.start = s->io[i].res->start;
502 iomap.stop = s->io[i].res->end;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700503 s->ops->set_io_map(s, &iomap);
504 s->io[i].Config++;
505 }
506 }
507
508 c->state |= CONFIG_LOCKED;
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100509 p_dev->_locked = 1;
Dominik Brodowski059f6672010-03-30 18:07:50 +0200510 mutex_unlock(&s->ops_mutex);
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200511 return 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700512} /* pcmcia_request_configuration */
513EXPORT_SYMBOL(pcmcia_request_configuration);
514
515
516/** pcmcia_request_io
517 *
518 * Request_io() reserves ranges of port addresses for a socket.
519 * I have not implemented range sharing or alias addressing.
520 */
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700521int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700522{
Dominik Brodowski2bc5a9b2005-07-07 17:59:02 -0700523 struct pcmcia_socket *s = p_dev->socket;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700524 config_t *c;
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100525 int ret = -EINVAL;
526
527 mutex_lock(&s->ops_mutex);
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700528
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200529 if (!(s->state & SOCKET_PRESENT)) {
530 dev_dbg(&s->dev, "No card present\n");
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100531 goto out;
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200532 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700533
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700534 if (!req)
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100535 goto out;
536
Dominik Brodowskidbb22f02006-01-10 20:41:27 +0100537 c = p_dev->function_config;
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200538 if (c->state & CONFIG_LOCKED) {
539 dev_dbg(&s->dev, "Configuration is locked\n");
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100540 goto out;
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200541 }
Dominik Brodowskif9580952008-08-03 11:40:19 +0200542 if (c->state & CONFIG_IO_REQ) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200543 dev_dbg(&s->dev, "IO already configured\n");
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100544 goto out;
Dominik Brodowskif9580952008-08-03 11:40:19 +0200545 }
Dominik Brodowski610e2372008-08-03 11:58:53 +0200546 if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200547 dev_dbg(&s->dev, "bad attribute setting for IO region 1\n");
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100548 goto out;
Dominik Brodowski610e2372008-08-03 11:58:53 +0200549 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700550 if ((req->NumPorts2 > 0) &&
Dominik Brodowski610e2372008-08-03 11:58:53 +0200551 (req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200552 dev_dbg(&s->dev, "bad attribute setting for IO region 2\n");
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100553 goto out;
Dominik Brodowski610e2372008-08-03 11:58:53 +0200554 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700555
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200556 dev_dbg(&s->dev, "trying to allocate resource 1\n");
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100557 ret = alloc_io_space(s, req->Attributes1, &req->BasePort1,
558 req->NumPorts1, req->IOAddrLines);
559 if (ret) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200560 dev_dbg(&s->dev, "allocation of resource 1 failed\n");
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100561 goto out;
Dominik Brodowskif9580952008-08-03 11:40:19 +0200562 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700563
564 if (req->NumPorts2) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200565 dev_dbg(&s->dev, "trying to allocate resource 2\n");
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100566 ret = alloc_io_space(s, req->Attributes2, &req->BasePort2,
567 req->NumPorts2, req->IOAddrLines);
568 if (ret) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200569 dev_dbg(&s->dev, "allocation of resource 2 failed\n");
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700570 release_io_space(s, req->BasePort1, req->NumPorts1);
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100571 goto out;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700572 }
573 }
574
575 c->io = *req;
576 c->state |= CONFIG_IO_REQ;
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100577 p_dev->_io = 1;
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100578 dev_dbg(&s->dev, "allocating resources succeeded: %d\n", ret);
579
580out:
581 mutex_unlock(&s->ops_mutex);
582
583 return ret;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700584} /* pcmcia_request_io */
585EXPORT_SYMBOL(pcmcia_request_io);
586
587
Dominik Brodowskieb141202010-03-07 12:21:16 +0100588/**
589 * pcmcia_request_irq() - attempt to request a IRQ for a PCMCIA device
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700590 *
Dominik Brodowskieb141202010-03-07 12:21:16 +0100591 * pcmcia_request_irq() is a wrapper around request_irq which will allow
592 * the PCMCIA core to clean up the registration in pcmcia_disable_device().
593 * Drivers are free to use request_irq() directly, but then they need to
594 * call free_irq themselfves, too. Also, only IRQF_SHARED capable IRQ
595 * handlers are allowed.
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700596 */
Dominik Brodowskieb141202010-03-07 12:21:16 +0100597int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev,
598 irq_handler_t handler)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700599{
Dominik Brodowskieb141202010-03-07 12:21:16 +0100600 int ret;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700601
Dominik Brodowskieb141202010-03-07 12:21:16 +0100602 if (!p_dev->irq)
603 return -EINVAL;
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100604
Dominik Brodowskieb141202010-03-07 12:21:16 +0100605 ret = request_irq(p_dev->irq, handler, IRQF_SHARED,
606 p_dev->devname, p_dev->priv);
607 if (!ret)
608 p_dev->_irq = 1;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700609
Dominik Brodowskieb141202010-03-07 12:21:16 +0100610 return ret;
611}
612EXPORT_SYMBOL(pcmcia_request_irq);
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700613
Dominik Brodowskieb141202010-03-07 12:21:16 +0100614
615/**
616 * pcmcia_request_exclusive_irq() - attempt to request an exclusive IRQ first
617 *
618 * pcmcia_request_exclusive_irq() is a wrapper around request_irq which
619 * attempts first to request an exclusive IRQ. If it fails, it also accepts
620 * a shared IRQ, but prints out a warning. PCMCIA drivers should allow for
621 * IRQ sharing and either use request_irq directly (then they need to call
622 * free_irq themselves, too), or the pcmcia_request_irq() function.
623 */
624int __must_check
Dominik Brodowskib19a7272010-03-20 13:10:47 +0100625__pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev,
626 irq_handler_t handler)
Dominik Brodowskieb141202010-03-07 12:21:16 +0100627{
628 int ret;
629
630 if (!p_dev->irq)
631 return -EINVAL;
632
633 ret = request_irq(p_dev->irq, handler, 0, p_dev->devname, p_dev->priv);
634 if (ret) {
635 ret = pcmcia_request_irq(p_dev, handler);
636 dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: "
637 "request for exclusive IRQ could not be fulfilled.\n");
Dominik Brodowski6f0f38c2010-04-08 20:33:16 +0200638 dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: the driver "
639 "needs updating to supported shared IRQ lines.\n");
640 }
Dominik Brodowskieb141202010-03-07 12:21:16 +0100641 if (ret)
642 dev_printk(KERN_INFO, &p_dev->dev, "request_irq() failed\n");
643 else
644 p_dev->_irq = 1;
Dominik Brodowski6f0f38c2010-04-08 20:33:16 +0200645
Dominik Brodowski94a819f2010-01-17 18:31:34 +0100646 return ret;
Dominik Brodowskieb141202010-03-07 12:21:16 +0100647} /* pcmcia_request_exclusive_irq */
Dominik Brodowskib19a7272010-03-20 13:10:47 +0100648EXPORT_SYMBOL(__pcmcia_request_exclusive_irq);
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700649
650
Dominik Brodowski6f0f38c2010-04-08 20:33:16 +0200651#ifdef CONFIG_PCMCIA_PROBE
652
653/* mask of IRQs already reserved by other cards, we should avoid using them */
654static u8 pcmcia_used_irq[NR_IRQS];
655
656static irqreturn_t test_action(int cpl, void *dev_id)
657{
658 return IRQ_NONE;
659}
660
661/**
662 * pcmcia_setup_isa_irq() - determine whether an ISA IRQ can be used
663 * @p_dev - the associated PCMCIA device
664 *
665 * locking note: must be called with ops_mutex locked.
666 */
667static int pcmcia_setup_isa_irq(struct pcmcia_device *p_dev, int type)
668{
669 struct pcmcia_socket *s = p_dev->socket;
670 unsigned int try, irq;
671 u32 mask = s->irq_mask;
672 int ret = -ENODEV;
673
674 for (try = 0; try < 64; try++) {
675 irq = try % 32;
676
677 /* marked as available by driver, not blocked by userspace? */
678 if (!((mask >> irq) & 1))
679 continue;
680
681 /* avoid an IRQ which is already used by another PCMCIA card */
682 if ((try < 32) && pcmcia_used_irq[irq])
683 continue;
684
685 /* register the correct driver, if possible, to check whether
686 * registering a dummy handle works, i.e. if the IRQ isn't
687 * marked as used by the kernel resource management core */
688 ret = request_irq(irq, test_action, type, p_dev->devname,
689 p_dev);
690 if (!ret) {
691 free_irq(irq, p_dev);
Dominik Brodowskieb141202010-03-07 12:21:16 +0100692 p_dev->irq = s->pcmcia_irq = irq;
Dominik Brodowski6f0f38c2010-04-08 20:33:16 +0200693 pcmcia_used_irq[irq]++;
694 break;
695 }
696 }
697
698 return ret;
699}
700
701void pcmcia_cleanup_irq(struct pcmcia_socket *s)
702{
Dominik Brodowski6f840af2010-03-07 10:51:23 +0100703 pcmcia_used_irq[s->pcmcia_irq]--;
704 s->pcmcia_irq = 0;
Dominik Brodowski6f0f38c2010-04-08 20:33:16 +0200705}
706
707#else /* CONFIG_PCMCIA_PROBE */
708
709static int pcmcia_setup_isa_irq(struct pcmcia_device *p_dev, int type)
710{
711 return -EINVAL;
712}
713
714void pcmcia_cleanup_irq(struct pcmcia_socket *s)
715{
Dominik Brodowski6f840af2010-03-07 10:51:23 +0100716 s->pcmcia_irq = 0;
Dominik Brodowski6f0f38c2010-04-08 20:33:16 +0200717 return;
718}
719
720#endif /* CONFIG_PCMCIA_PROBE */
721
722
723/**
724 * pcmcia_setup_irq() - determine IRQ to be used for device
725 * @p_dev - the associated PCMCIA device
726 *
727 * locking note: must be called with ops_mutex locked.
728 */
729int pcmcia_setup_irq(struct pcmcia_device *p_dev)
730{
731 struct pcmcia_socket *s = p_dev->socket;
732
Dominik Brodowskieb141202010-03-07 12:21:16 +0100733 if (p_dev->irq)
Dominik Brodowski6f0f38c2010-04-08 20:33:16 +0200734 return 0;
735
736 /* already assigned? */
Dominik Brodowski6f840af2010-03-07 10:51:23 +0100737 if (s->pcmcia_irq) {
Dominik Brodowskieb141202010-03-07 12:21:16 +0100738 p_dev->irq = s->pcmcia_irq;
Dominik Brodowski6f0f38c2010-04-08 20:33:16 +0200739 return 0;
740 }
741
742 /* prefer an exclusive ISA irq */
743 if (!pcmcia_setup_isa_irq(p_dev, 0))
744 return 0;
745
746 /* but accept a shared ISA irq */
747 if (!pcmcia_setup_isa_irq(p_dev, IRQF_SHARED))
748 return 0;
749
750 /* but use the PCI irq otherwise */
751 if (s->pci_irq) {
Dominik Brodowskieb141202010-03-07 12:21:16 +0100752 p_dev->irq = s->pcmcia_irq = s->pci_irq;
Dominik Brodowski6f0f38c2010-04-08 20:33:16 +0200753 return 0;
754 }
755
756 return -EINVAL;
757}
758
759
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700760/** pcmcia_request_window
761 *
762 * Request_window() establishes a mapping between card memory space
763 * and system memory space.
764 */
Dominik Brodowski6838b032009-11-03 01:31:52 +0100765int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_handle_t *wh)
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700766{
Dominik Brodowski6838b032009-11-03 01:31:52 +0100767 struct pcmcia_socket *s = p_dev->socket;
Dominik Brodowski82f88e32009-11-03 01:16:12 +0100768 pccard_mem_map *win;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700769 u_long align;
770 int w;
771
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200772 if (!(s->state & SOCKET_PRESENT)) {
773 dev_dbg(&s->dev, "No card present\n");
Dominik Brodowski3939c1ef2008-08-03 11:10:56 +0200774 return -ENODEV;
Dominik Brodowski6d9a2992009-10-24 12:20:18 +0200775 }
Dominik Brodowski610e2372008-08-03 11:58:53 +0200776 if (req->Attributes & (WIN_PAGED | WIN_SHARED)) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200777 dev_dbg(&s->dev, "bad attribute setting for iomem region\n");
Dominik Brodowski610e2372008-08-03 11:58:53 +0200778 return -EINVAL;
779 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700780
781 /* Window size defaults to smallest available */
782 if (req->Size == 0)
783 req->Size = s->map_size;
784 align = (((s->features & SS_CAP_MEM_ALIGN) ||
785 (req->Attributes & WIN_STRICT_ALIGN)) ?
786 req->Size : s->map_size);
Dominik Brodowski69ba4432008-08-03 12:10:53 +0200787 if (req->Size & (s->map_size-1)) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200788 dev_dbg(&s->dev, "invalid map size\n");
Dominik Brodowski69ba4432008-08-03 12:10:53 +0200789 return -EINVAL;
790 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700791 if ((req->Base && (s->features & SS_CAP_STATIC_MAP)) ||
Dominik Brodowski69ba4432008-08-03 12:10:53 +0200792 (req->Base & (align-1))) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200793 dev_dbg(&s->dev, "invalid base address\n");
Dominik Brodowski69ba4432008-08-03 12:10:53 +0200794 return -EINVAL;
795 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700796 if (req->Base)
797 align = 0;
798
799 /* Allocate system memory window */
800 for (w = 0; w < MAX_WIN; w++)
Dominik Brodowski9fea84f2009-12-07 22:11:45 +0100801 if (!(s->state & SOCKET_WIN_REQ(w)))
802 break;
Dominik Brodowskif9580952008-08-03 11:40:19 +0200803 if (w == MAX_WIN) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200804 dev_dbg(&s->dev, "all windows are used already\n");
Dominik Brodowskif9580952008-08-03 11:40:19 +0200805 return -EINVAL;
806 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700807
Dominik Brodowski6b8e0872010-01-12 21:42:51 +0100808 mutex_lock(&s->ops_mutex);
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700809 win = &s->win[w];
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700810
811 if (!(s->features & SS_CAP_STATIC_MAP)) {
Dominik Brodowski82f88e32009-11-03 01:16:12 +0100812 win->res = pcmcia_find_mem_region(req->Base, req->Size, align,
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700813 (req->Attributes & WIN_MAP_BELOW_1MB), s);
Dominik Brodowski82f88e32009-11-03 01:16:12 +0100814 if (!win->res) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200815 dev_dbg(&s->dev, "allocating mem region failed\n");
Dominik Brodowski6b8e0872010-01-12 21:42:51 +0100816 mutex_unlock(&s->ops_mutex);
Dominik Brodowskif9580952008-08-03 11:40:19 +0200817 return -EINVAL;
818 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700819 }
Dominik Brodowski6838b032009-11-03 01:31:52 +0100820 p_dev->_win |= CLIENT_WIN_REQ(w);
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700821
822 /* Configure the socket controller */
Dominik Brodowski82f88e32009-11-03 01:16:12 +0100823 win->map = w+1;
824 win->flags = 0;
825 win->speed = req->AccessSpeed;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700826 if (req->Attributes & WIN_MEMORY_TYPE)
Dominik Brodowski82f88e32009-11-03 01:16:12 +0100827 win->flags |= MAP_ATTRIB;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700828 if (req->Attributes & WIN_ENABLE)
Dominik Brodowski82f88e32009-11-03 01:16:12 +0100829 win->flags |= MAP_ACTIVE;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700830 if (req->Attributes & WIN_DATA_WIDTH_16)
Dominik Brodowski82f88e32009-11-03 01:16:12 +0100831 win->flags |= MAP_16BIT;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700832 if (req->Attributes & WIN_USE_WAIT)
Dominik Brodowski82f88e32009-11-03 01:16:12 +0100833 win->flags |= MAP_USE_WAIT;
834 win->card_start = 0;
Dominik Brodowski6b8e0872010-01-12 21:42:51 +0100835
Dominik Brodowski82f88e32009-11-03 01:16:12 +0100836 if (s->ops->set_mem_map(s, win) != 0) {
Dominik Brodowskid50dbec2009-10-23 12:51:28 +0200837 dev_dbg(&s->dev, "failed to set memory mapping\n");
Dominik Brodowski6b8e0872010-01-12 21:42:51 +0100838 mutex_unlock(&s->ops_mutex);
Dominik Brodowski926c5402008-08-03 12:15:11 +0200839 return -EIO;
840 }
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700841 s->state |= SOCKET_WIN_REQ(w);
842
843 /* Return window handle */
Dominik Brodowski9fea84f2009-12-07 22:11:45 +0100844 if (s->features & SS_CAP_STATIC_MAP)
Dominik Brodowski82f88e32009-11-03 01:16:12 +0100845 req->Base = win->static_start;
Dominik Brodowski9fea84f2009-12-07 22:11:45 +0100846 else
Dominik Brodowski82f88e32009-11-03 01:16:12 +0100847 req->Base = win->res->start;
Dominik Brodowski9fea84f2009-12-07 22:11:45 +0100848
Dominik Brodowski6b8e0872010-01-12 21:42:51 +0100849 mutex_unlock(&s->ops_mutex);
Magnus Damm0bdf9b32006-12-13 19:46:53 +0900850 *wh = w + 1;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700851
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200852 return 0;
Dominik Brodowski1a8d4662005-06-27 16:28:53 -0700853} /* pcmcia_request_window */
854EXPORT_SYMBOL(pcmcia_request_window);
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100855
Dominik Brodowski9fea84f2009-12-07 22:11:45 +0100856void pcmcia_disable_device(struct pcmcia_device *p_dev)
857{
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100858 pcmcia_release_configuration(p_dev);
Dominik Brodowskifd238232006-03-05 10:45:09 +0100859 pcmcia_release_io(p_dev, &p_dev->io);
Patrick McHardy418c5272010-07-20 15:21:42 -0700860 if (p_dev->_irq) {
Dominik Brodowskieb141202010-03-07 12:21:16 +0100861 free_irq(p_dev->irq, p_dev->priv);
Patrick McHardy418c5272010-07-20 15:21:42 -0700862 p_dev->_irq = 0;
863 }
Dominik Brodowskic1ac0222008-06-14 18:51:06 +0200864 if (p_dev->win)
Magnus Dammf5560da2006-12-13 19:46:38 +0900865 pcmcia_release_window(p_dev, p_dev->win);
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100866}
867EXPORT_SYMBOL(pcmcia_disable_device);