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
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for Sound Core PDAudioCF soundcard
*
* Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz>
*/
#include <sound/core.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <pcmcia/ciscode.h>
#include <pcmcia/cisreg.h>
#include "pdaudiocf.h"
#include <sound/initval.h>
#include <linux/init.h>
/*
*/
#define CARD_NAME "PDAudio-CF"
MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Sound Core " CARD_NAME);
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Sound Core," CARD_NAME "}}");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");
/*
*/
static struct snd_card *card_list[SNDRV_CARDS];
/*
* prototypes
*/
static int pdacf_config(struct pcmcia_device *link);
static void snd_pdacf_detach(struct pcmcia_device *p_dev);
static void pdacf_release(struct pcmcia_device *link)
{
free_irq(link->irq, link->priv);
pcmcia_disable_device(link);
}
/*
* destructor
*/
static int snd_pdacf_free(struct snd_pdacf *pdacf)
{
struct pcmcia_device *link = pdacf->p_dev;
pdacf_release(link);
card_list[pdacf->index] = NULL;
pdacf->card = NULL;
kfree(pdacf);
return 0;
}
static int snd_pdacf_dev_free(struct snd_device *device)
{
struct snd_pdacf *chip = device->device_data;
return snd_pdacf_free(chip);
}
/*
* snd_pdacf_attach - attach callback for cs
*/
static int snd_pdacf_probe(struct pcmcia_device *link)
{
int i, err;
struct snd_pdacf *pdacf;
struct snd_card *card;
static struct snd_device_ops ops = {
.dev_free = snd_pdacf_dev_free,
};
snd_printdd(KERN_DEBUG "pdacf_attach called\n");
/* find an empty slot from the card list */
for (i = 0; i < SNDRV_CARDS; i++) {
if (! card_list[i])
break;
}
if (i >= SNDRV_CARDS) {
snd_printk(KERN_ERR "pdacf: too many cards found\n");
return -EINVAL;
}
if (! enable[i])
return -ENODEV; /* disabled explicitly */
/* ok, create a card instance */
err = snd_card_new(&link->dev, index[i], id[i], THIS_MODULE,
0, &card);
if (err < 0) {
snd_printk(KERN_ERR "pdacf: cannot create a card instance\n");
return err;
}
pdacf = snd_pdacf_create(card);
if (!pdacf) {
snd_card_free(card);
return -ENOMEM;
}
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, pdacf, &ops);
if (err < 0) {
kfree(pdacf);
snd_card_free(card);
return err;
}
pdacf->index = i;
card_list[i] = card;
pdacf->p_dev = link;
link->priv = pdacf;
link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
link->resource[0]->end = 16;
link->config_flags = CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ;
link->config_index = 1;
link->config_regs = PRESENT_OPTION;
return pdacf_config(link);
}
/**
* snd_pdacf_assign_resources - initialize the hardware and card instance.
* @port: i/o port for the card
* @irq: irq number for the card
*
* this function assigns the specified port and irq, boot the card,
* create pcm and control instances, and initialize the rest hardware.
*
* returns 0 if successful, or a negative error code.
*/
static int snd_pdacf_assign_resources(struct snd_pdacf *pdacf, int port, int irq)
{
int err;
struct snd_card *card = pdacf->card;
snd_printdd(KERN_DEBUG "pdacf assign resources: port = 0x%x, irq = %d\n", port, irq);
pdacf->port = port;
pdacf->irq = irq;
pdacf->chip_status |= PDAUDIOCF_STAT_IS_CONFIGURED;
err = snd_pdacf_ak4117_create(pdacf);
if (err < 0)
return err;
strcpy(card->driver, "PDAudio-CF");
sprintf(card->shortname, "Core Sound %s", card->driver);
sprintf(card->longname, "%s at 0x%x, irq %i",
card->shortname, port, irq);
err = snd_pdacf_pcm_new(pdacf);
if (err < 0)
return err;
if ((err = snd_card_register(card)) < 0)
return err;
return 0;
}
/*
* snd_pdacf_detach - detach callback for cs
*/
static void snd_pdacf_detach(struct pcmcia_device *link)
{
struct snd_pdacf *chip = link->priv;
snd_printdd(KERN_DEBUG "pdacf_detach called\n");
if (chip->chip_status & PDAUDIOCF_STAT_IS_CONFIGURED)
snd_pdacf_powerdown(chip);
chip->chip_status |= PDAUDIOCF_STAT_IS_STALE; /* to be sure */
snd_card_disconnect(chip->card);
snd_card_free_when_closed(chip->card);
}
/*
* configuration callback
*/
static int pdacf_config(struct pcmcia_device *link)
{
struct snd_pdacf *pdacf = link->priv;
int ret;
snd_printdd(KERN_DEBUG "pdacf_config called\n");
link->config_index = 0x5;
link->config_flags |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ;
ret = pcmcia_request_io(link);
if (ret)
goto failed_preirq;
ret = request_threaded_irq(link->irq, pdacf_interrupt,
pdacf_threaded_irq,
IRQF_SHARED, link->devname, link->priv);
if (ret)
goto failed_preirq;
ret = pcmcia_enable_device(link);
if (ret)
goto failed;
if (snd_pdacf_assign_resources(pdacf, link->resource[0]->start,
link->irq) < 0)
goto failed;
return 0;
failed:
free_irq(link->irq, link->priv);
failed_preirq:
pcmcia_disable_device(link);
return -ENODEV;
}
#ifdef CONFIG_PM
static int pdacf_suspend(struct pcmcia_device *link)
{
struct snd_pdacf *chip = link->priv;
snd_printdd(KERN_DEBUG "SUSPEND\n");
if (chip) {
snd_printdd(KERN_DEBUG "snd_pdacf_suspend calling\n");
snd_pdacf_suspend(chip);
}
return 0;
}
static int pdacf_resume(struct pcmcia_device *link)
{
struct snd_pdacf *chip = link->priv;
snd_printdd(KERN_DEBUG "RESUME\n");
if (pcmcia_dev_present(link)) {
if (chip) {
snd_printdd(KERN_DEBUG "calling snd_pdacf_resume\n");
snd_pdacf_resume(chip);
}
}
snd_printdd(KERN_DEBUG "resume done!\n");
return 0;
}
#endif
/*
* Module entry points
*/
static const struct pcmcia_device_id snd_pdacf_ids[] = {
/* this is too general PCMCIA_DEVICE_MANF_CARD(0x015d, 0x4c45), */
PCMCIA_DEVICE_PROD_ID12("Core Sound","PDAudio-CF",0x396d19d2,0x71717b49),
PCMCIA_DEVICE_NULL
};
MODULE_DEVICE_TABLE(pcmcia, snd_pdacf_ids);
static struct pcmcia_driver pdacf_cs_driver = {
.owner = THIS_MODULE,
.name = "snd-pdaudiocf",
.probe = snd_pdacf_probe,
.remove = snd_pdacf_detach,
.id_table = snd_pdacf_ids,
#ifdef CONFIG_PM
.suspend = pdacf_suspend,
.resume = pdacf_resume,
#endif
};
module_pcmcia_driver(pdacf_cs_driver);
|
