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
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for SoundBlaster 1.0/2.0/Pro soundcards and compatible
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*/
#include <linux/init.h>
#include <linux/err.h>
#include <linux/isa.h>
#include <linux/ioport.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/sb.h>
#include <sound/opl3.h>
#include <sound/initval.h>
MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Sound Blaster 1.0/2.0/Pro");
MODULE_LICENSE("GPL");
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; /* Enable this card */
static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240,0x260 */
static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */
static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 1,3 */
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for Sound Blaster soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for Sound Blaster soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable Sound Blaster soundcard.");
module_param_hw_array(port, long, ioport, NULL, 0444);
MODULE_PARM_DESC(port, "Port # for SB8 driver.");
module_param_hw_array(irq, int, irq, NULL, 0444);
MODULE_PARM_DESC(irq, "IRQ # for SB8 driver.");
module_param_hw_array(dma8, int, dma, NULL, 0444);
MODULE_PARM_DESC(dma8, "8-bit DMA # for SB8 driver.");
struct snd_sb8 {
struct resource *fm_res; /* used to block FM i/o region for legacy cards */
struct snd_sb *chip;
};
static irqreturn_t snd_sb8_interrupt(int irq, void *dev_id)
{
struct snd_sb *chip = dev_id;
if (chip->open & SB_OPEN_PCM) {
return snd_sb8dsp_interrupt(chip);
} else {
return snd_sb8dsp_midi_interrupt(chip);
}
}
static void snd_sb8_free(struct snd_card *card)
{
struct snd_sb8 *acard = card->private_data;
if (acard == NULL)
return;
release_and_free_resource(acard->fm_res);
}
static int snd_sb8_match(struct device *pdev, unsigned int dev)
{
if (!enable[dev])
return 0;
if (irq[dev] == SNDRV_AUTO_IRQ) {
dev_err(pdev, "please specify irq\n");
return 0;
}
if (dma8[dev] == SNDRV_AUTO_DMA) {
dev_err(pdev, "please specify dma8\n");
return 0;
}
return 1;
}
static int snd_sb8_probe(struct device *pdev, unsigned int dev)
{
struct snd_sb *chip;
struct snd_card *card;
struct snd_sb8 *acard;
struct snd_opl3 *opl3;
int err;
err = snd_card_new(pdev, index[dev], id[dev], THIS_MODULE,
sizeof(struct snd_sb8), &card);
if (err < 0)
return err;
acard = card->private_data;
card->private_free = snd_sb8_free;
/*
* Block the 0x388 port to avoid PnP conflicts.
* No need to check this value after request_region,
* as we never do anything with it.
*/
acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
if (port[dev] != SNDRV_AUTO_PORT) {
if ((err = snd_sbdsp_create(card, port[dev], irq[dev],
snd_sb8_interrupt,
dma8[dev],
-1,
SB_HW_AUTO,
&chip)) < 0)
goto _err;
} else {
/* auto-probe legacy ports */
static const unsigned long possible_ports[] = {
0x220, 0x240, 0x260,
};
int i;
for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
err = snd_sbdsp_create(card, possible_ports[i],
irq[dev],
snd_sb8_interrupt,
dma8[dev],
-1,
SB_HW_AUTO,
&chip);
if (err >= 0) {
port[dev] = possible_ports[i];
break;
}
}
if (i >= ARRAY_SIZE(possible_ports)) {
err = -EINVAL;
goto _err;
}
}
acard->chip = chip;
if (chip->hardware >= SB_HW_16) {
if (chip->hardware == SB_HW_ALS100)
snd_printk(KERN_WARNING "ALS100 chip detected at 0x%lx, try snd-als100 module\n",
port[dev]);
else
snd_printk(KERN_WARNING "SB 16 chip detected at 0x%lx, try snd-sb16 module\n",
port[dev]);
err = -ENODEV;
goto _err;
}
if ((err = snd_sb8dsp_pcm(chip, 0)) < 0)
goto _err;
if ((err = snd_sbmixer_new(chip)) < 0)
goto _err;
if (chip->hardware == SB_HW_10 || chip->hardware == SB_HW_20) {
if ((err = snd_opl3_create(card, chip->port + 8, 0,
OPL3_HW_AUTO, 1,
&opl3)) < 0) {
snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx\n", chip->port + 8);
}
} else {
if ((err = snd_opl3_create(card, chip->port, chip->port + 2,
OPL3_HW_AUTO, 1,
&opl3)) < 0) {
snd_printk(KERN_WARNING "sb8: no OPL device at 0x%lx-0x%lx\n",
chip->port, chip->port + 2);
}
}
if (err >= 0) {
if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0)
goto _err;
}
if ((err = snd_sb8dsp_midi(chip, 0)) < 0)
goto _err;
strcpy(card->driver, chip->hardware == SB_HW_PRO ? "SB Pro" : "SB8");
strcpy(card->shortname, chip->name);
sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
chip->name,
chip->port,
irq[dev], dma8[dev]);
if ((err = snd_card_register(card)) < 0)
goto _err;
dev_set_drvdata(pdev, card);
return 0;
_err:
snd_card_free(card);
return err;
}
static void snd_sb8_remove(struct device *pdev, unsigned int dev)
{
snd_card_free(dev_get_drvdata(pdev));
}
#ifdef CONFIG_PM
static int snd_sb8_suspend(struct device *dev, unsigned int n,
pm_message_t state)
{
struct snd_card *card = dev_get_drvdata(dev);
struct snd_sb8 *acard = card->private_data;
struct snd_sb *chip = acard->chip;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
snd_sbmixer_suspend(chip);
return 0;
}
static int snd_sb8_resume(struct device *dev, unsigned int n)
{
struct snd_card *card = dev_get_drvdata(dev);
struct snd_sb8 *acard = card->private_data;
struct snd_sb *chip = acard->chip;
snd_sbdsp_reset(chip);
snd_sbmixer_resume(chip);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
#endif
#define DEV_NAME "sb8"
static struct isa_driver snd_sb8_driver = {
.match = snd_sb8_match,
.probe = snd_sb8_probe,
.remove = snd_sb8_remove,
#ifdef CONFIG_PM
.suspend = snd_sb8_suspend,
.resume = snd_sb8_resume,
#endif
.driver = {
.name = DEV_NAME
},
};
module_isa_driver(snd_sb8_driver, SNDRV_CARDS);
|
