1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
|
/*
* Driver for 802.11b cards using RAM-loadable Symbol firmware, such as
* Symbol Wireless Networker LA4137, CompactFlash cards by Socket
* Communications and Intel PRO/Wireless 2011B.
*
* The driver implements Symbol firmware download. The rest is handled
* in hermes.c and main.c.
*
* Utilities for downloading the Symbol firmware are available at
* http://sourceforge.net/projects/orinoco/
*
* Copyright (C) 2002-2005 Pavel Roskin <proski@gnu.org>
* Portions based on orinoco_cs.c:
* Copyright (C) David Gibson, Linuxcare Australia
* Portions based on Spectrum24tDnld.c from original spectrum24 driver:
* Copyright (C) Symbol Technologies.
*
* See copyright notice in file main.c.
*/
#define DRIVER_NAME "spectrum_cs"
#define PFX DRIVER_NAME ": "
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ds.h>
#include "orinoco.h"
/********************************************************************/
/* Module stuff */
/********************************************************************/
MODULE_AUTHOR("Pavel Roskin <proski@gnu.org>");
MODULE_DESCRIPTION("Driver for Symbol Spectrum24 Trilogy cards with firmware downloader");
MODULE_LICENSE("Dual MPL/GPL");
/* Module parameters */
/* Some D-Link cards have buggy CIS. They do work at 5v properly, but
* don't have any CIS entry for it. This workaround it... */
static int ignore_cis_vcc; /* = 0 */
module_param(ignore_cis_vcc, int, 0);
MODULE_PARM_DESC(ignore_cis_vcc, "Allow voltage mismatch between card and socket");
/********************************************************************/
/* Data structures */
/********************************************************************/
/* PCMCIA specific device information (goes in the card field of
* struct orinoco_private */
struct orinoco_pccard {
struct pcmcia_device *p_dev;
};
/********************************************************************/
/* Function prototypes */
/********************************************************************/
static int spectrum_cs_config(struct pcmcia_device *link);
static void spectrum_cs_release(struct pcmcia_device *link);
/* Constants for the CISREG_CCSR register */
#define HCR_RUN 0x07 /* run firmware after reset */
#define HCR_IDLE 0x0E /* don't run firmware after reset */
#define HCR_MEM16 0x10 /* memory width bit, should be preserved */
/*
* Reset the card using configuration registers COR and CCSR.
* If IDLE is 1, stop the firmware, so that it can be safely rewritten.
*/
static int
spectrum_reset(struct pcmcia_device *link, int idle)
{
int ret;
u8 save_cor;
u8 ccsr;
/* Doing it if hardware is gone is guaranteed crash */
if (!pcmcia_dev_present(link))
return -ENODEV;
/* Save original COR value */
ret = pcmcia_read_config_byte(link, CISREG_COR, &save_cor);
if (ret)
goto failed;
/* Soft-Reset card */
ret = pcmcia_write_config_byte(link, CISREG_COR,
(save_cor | COR_SOFT_RESET));
if (ret)
goto failed;
udelay(1000);
/* Read CCSR */
ret = pcmcia_read_config_byte(link, CISREG_CCSR, &ccsr);
if (ret)
goto failed;
/*
* Start or stop the firmware. Memory width bit should be
* preserved from the value we've just read.
*/
ccsr = (idle ? HCR_IDLE : HCR_RUN) | (ccsr & HCR_MEM16);
ret = pcmcia_write_config_byte(link, CISREG_CCSR, ccsr);
if (ret)
goto failed;
udelay(1000);
/* Restore original COR configuration index */
ret = pcmcia_write_config_byte(link, CISREG_COR,
(save_cor & ~COR_SOFT_RESET));
if (ret)
goto failed;
udelay(1000);
return 0;
failed:
return -ENODEV;
}
/********************************************************************/
/* Device methods */
/********************************************************************/
static int
spectrum_cs_hard_reset(struct orinoco_private *priv)
{
struct orinoco_pccard *card = priv->card;
struct pcmcia_device *link = card->p_dev;
/* Soft reset using COR and HCR */
spectrum_reset(link, 0);
return 0;
}
static int
spectrum_cs_stop_firmware(struct orinoco_private *priv, int idle)
{
struct orinoco_pccard *card = priv->card;
struct pcmcia_device *link = card->p_dev;
return spectrum_reset(link, idle);
}
/********************************************************************/
/* PCMCIA stuff */
/********************************************************************/
static int
spectrum_cs_probe(struct pcmcia_device *link)
{
struct orinoco_private *priv;
struct orinoco_pccard *card;
priv = alloc_orinocodev(sizeof(*card), &link->dev,
spectrum_cs_hard_reset,
spectrum_cs_stop_firmware);
if (!priv)
return -ENOMEM;
card = priv->card;
/* Link both structures together */
card->p_dev = link;
link->priv = priv;
return spectrum_cs_config(link);
} /* spectrum_cs_attach */
static void spectrum_cs_detach(struct pcmcia_device *link)
{
struct orinoco_private *priv = link->priv;
orinoco_if_del(priv);
spectrum_cs_release(link);
free_orinocodev(priv);
} /* spectrum_cs_detach */
static int spectrum_cs_config_check(struct pcmcia_device *p_dev,
void *priv_data)
{
if (p_dev->config_index == 0)
return -EINVAL;
return pcmcia_request_io(p_dev);
};
static int
spectrum_cs_config(struct pcmcia_device *link)
{
struct orinoco_private *priv = link->priv;
hermes_t *hw = &priv->hw;
int ret;
void __iomem *mem;
link->config_flags |= CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC |
CONF_AUTO_SET_IO | CONF_ENABLE_IRQ;
if (ignore_cis_vcc)
link->config_flags &= ~CONF_AUTO_CHECK_VCC;
ret = pcmcia_loop_config(link, spectrum_cs_config_check, NULL);
if (ret) {
if (!ignore_cis_vcc)
printk(KERN_ERR PFX "GetNextTuple(): No matching "
"CIS configuration. Maybe you need the "
"ignore_cis_vcc=1 parameter.\n");
goto failed;
}
ret = pcmcia_request_irq(link, orinoco_interrupt);
if (ret)
goto failed;
/* We initialize the hermes structure before completing PCMCIA
* configuration just in case the interrupt handler gets
* called. */
mem = ioport_map(link->resource[0]->start,
resource_size(link->resource[0]));
if (!mem)
goto failed;
hermes_struct_init(hw, mem, HERMES_16BIT_REGSPACING);
hw->eeprom_pda = true;
ret = pcmcia_enable_device(link);
if (ret)
goto failed;
/* Reset card */
if (spectrum_cs_hard_reset(priv) != 0)
goto failed;
/* Initialise the main driver */
if (orinoco_init(priv) != 0) {
printk(KERN_ERR PFX "orinoco_init() failed\n");
goto failed;
}
/* Register an interface with the stack */
if (orinoco_if_add(priv, link->resource[0]->start,
link->irq, NULL) != 0) {
printk(KERN_ERR PFX "orinoco_if_add() failed\n");
goto failed;
}
return 0;
failed:
spectrum_cs_release(link);
return -ENODEV;
} /* spectrum_cs_config */
static void
spectrum_cs_release(struct pcmcia_device *link)
{
struct orinoco_private *priv = link->priv;
unsigned long flags;
/* We're committed to taking the device away now, so mark the
* hardware as unavailable */
priv->hw.ops->lock_irqsave(&priv->lock, &flags);
priv->hw_unavailable++;
priv->hw.ops->unlock_irqrestore(&priv->lock, &flags);
pcmcia_disable_device(link);
if (priv->hw.iobase)
ioport_unmap(priv->hw.iobase);
} /* spectrum_cs_release */
static int
spectrum_cs_suspend(struct pcmcia_device *link)
{
struct orinoco_private *priv = link->priv;
int err = 0;
/* Mark the device as stopped, to block IO until later */
orinoco_down(priv);
return err;
}
static int
spectrum_cs_resume(struct pcmcia_device *link)
{
struct orinoco_private *priv = link->priv;
int err = orinoco_up(priv);
return err;
}
/********************************************************************/
/* Module initialization */
/********************************************************************/
static struct pcmcia_device_id spectrum_cs_ids[] = {
PCMCIA_DEVICE_MANF_CARD(0x026c, 0x0001), /* Symbol Spectrum24 LA4137 */
PCMCIA_DEVICE_MANF_CARD(0x0104, 0x0001), /* Socket Communications CF */
PCMCIA_DEVICE_PROD_ID12("Intel", "PRO/Wireless LAN PC Card", 0x816cc815, 0x6fbf459a), /* 2011B, not 2011 */
PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, spectrum_cs_ids);
static struct pcmcia_driver orinoco_driver = {
.owner = THIS_MODULE,
.name = DRIVER_NAME,
.probe = spectrum_cs_probe,
.remove = spectrum_cs_detach,
.suspend = spectrum_cs_suspend,
.resume = spectrum_cs_resume,
.id_table = spectrum_cs_ids,
};
static int __init
init_spectrum_cs(void)
{
return pcmcia_register_driver(&orinoco_driver);
}
static void __exit
exit_spectrum_cs(void)
{
pcmcia_unregister_driver(&orinoco_driver);
}
module_init(init_spectrum_cs);
module_exit(exit_spectrum_cs);
|
