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
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Generic driver for AD1848/AD1847/CS4248 chips (0.1 Alpha)
* Copyright (c) by Tugrul Galatali <galatalt@stuy.edu>,
* Jaroslav Kysela <perex@perex.cz>
* Based on card-4232.c by Jaroslav Kysela <perex@perex.cz>
*/
#include <linux/init.h>
#include <linux/err.h>
#include <linux/isa.h>
#include <linux/time.h>
#include <linux/wait.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/wss.h>
#include <sound/initval.h>
#define CRD_NAME "Generic AD1848/AD1847/CS4248"
#define DEV_NAME "ad1848"
MODULE_DESCRIPTION(CRD_NAME);
MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@perex.cz>");
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; /* PnP setup */
static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */
static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
static bool thinkpad[SNDRV_CARDS]; /* Thinkpad special case */
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
module_param_hw_array(port, long, ioport, NULL, 0444);
MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
module_param_hw_array(irq, int, irq, NULL, 0444);
MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
module_param_hw_array(dma1, int, dma, NULL, 0444);
MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
module_param_array(thinkpad, bool, NULL, 0444);
MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");
static int snd_ad1848_match(struct device *dev, unsigned int n)
{
if (!enable[n])
return 0;
if (port[n] == SNDRV_AUTO_PORT) {
dev_err(dev, "please specify port\n");
return 0;
}
if (irq[n] == SNDRV_AUTO_IRQ) {
dev_err(dev, "please specify irq\n");
return 0;
}
if (dma1[n] == SNDRV_AUTO_DMA) {
dev_err(dev, "please specify dma1\n");
return 0;
}
return 1;
}
static int snd_ad1848_probe(struct device *dev, unsigned int n)
{
struct snd_card *card;
struct snd_wss *chip;
int error;
error = snd_devm_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
if (error < 0)
return error;
error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], -1,
thinkpad[n] ? WSS_HW_THINKPAD : WSS_HW_DETECT,
0, &chip);
if (error < 0)
return error;
card->private_data = chip;
error = snd_wss_pcm(chip, 0);
if (error < 0)
return error;
error = snd_wss_mixer(chip);
if (error < 0)
return error;
strscpy(card->driver, "AD1848", sizeof(card->driver));
strscpy(card->shortname, chip->pcm->name, sizeof(card->shortname));
if (!thinkpad[n])
snprintf(card->longname, sizeof(card->longname),
"%s at 0x%lx, irq %d, dma %d",
chip->pcm->name, chip->port, irq[n], dma1[n]);
else
snprintf(card->longname, sizeof(card->longname),
"%s at 0x%lx, irq %d, dma %d [Thinkpad]",
chip->pcm->name, chip->port, irq[n], dma1[n]);
error = snd_card_register(card);
if (error < 0)
return error;
dev_set_drvdata(dev, card);
return 0;
}
#ifdef CONFIG_PM
static int snd_ad1848_suspend(struct device *dev, unsigned int n, pm_message_t state)
{
struct snd_card *card = dev_get_drvdata(dev);
struct snd_wss *chip = card->private_data;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
chip->suspend(chip);
return 0;
}
static int snd_ad1848_resume(struct device *dev, unsigned int n)
{
struct snd_card *card = dev_get_drvdata(dev);
struct snd_wss *chip = card->private_data;
chip->resume(chip);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
#endif
static struct isa_driver snd_ad1848_driver = {
.match = snd_ad1848_match,
.probe = snd_ad1848_probe,
#ifdef CONFIG_PM
.suspend = snd_ad1848_suspend,
.resume = snd_ad1848_resume,
#endif
.driver = {
.name = DEV_NAME
}
};
module_isa_driver(snd_ad1848_driver, SNDRV_CARDS);
|
