This source file includes following definitions.
- snd_ad1848_match
- snd_ad1848_probe
- snd_ad1848_remove
- snd_ad1848_suspend
- snd_ad1848_resume
1
2
3
4
5
6
7
8
9 #include <linux/init.h>
10 #include <linux/err.h>
11 #include <linux/isa.h>
12 #include <linux/time.h>
13 #include <linux/wait.h>
14 #include <linux/module.h>
15 #include <sound/core.h>
16 #include <sound/wss.h>
17 #include <sound/initval.h>
18
19 #define CRD_NAME "Generic AD1848/AD1847/CS4248"
20 #define DEV_NAME "ad1848"
21
22 MODULE_DESCRIPTION(CRD_NAME);
23 MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@perex.cz>");
24 MODULE_LICENSE("GPL");
25 MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1848},"
26 "{Analog Devices,AD1847},"
27 "{Crystal Semiconductors,CS4248}}");
28
29 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
30 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
31 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
32 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
33 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
34 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
35 static bool thinkpad[SNDRV_CARDS];
36
37 module_param_array(index, int, NULL, 0444);
38 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
39 module_param_array(id, charp, NULL, 0444);
40 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
41 module_param_array(enable, bool, NULL, 0444);
42 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
43 module_param_hw_array(port, long, ioport, NULL, 0444);
44 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
45 module_param_hw_array(irq, int, irq, NULL, 0444);
46 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
47 module_param_hw_array(dma1, int, dma, NULL, 0444);
48 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
49 module_param_array(thinkpad, bool, NULL, 0444);
50 MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");
51
52 static int snd_ad1848_match(struct device *dev, unsigned int n)
53 {
54 if (!enable[n])
55 return 0;
56
57 if (port[n] == SNDRV_AUTO_PORT) {
58 dev_err(dev, "please specify port\n");
59 return 0;
60 }
61 if (irq[n] == SNDRV_AUTO_IRQ) {
62 dev_err(dev, "please specify irq\n");
63 return 0;
64 }
65 if (dma1[n] == SNDRV_AUTO_DMA) {
66 dev_err(dev, "please specify dma1\n");
67 return 0;
68 }
69 return 1;
70 }
71
72 static int snd_ad1848_probe(struct device *dev, unsigned int n)
73 {
74 struct snd_card *card;
75 struct snd_wss *chip;
76 int error;
77
78 error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
79 if (error < 0)
80 return error;
81
82 error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], -1,
83 thinkpad[n] ? WSS_HW_THINKPAD : WSS_HW_DETECT,
84 0, &chip);
85 if (error < 0)
86 goto out;
87
88 card->private_data = chip;
89
90 error = snd_wss_pcm(chip, 0);
91 if (error < 0)
92 goto out;
93
94 error = snd_wss_mixer(chip);
95 if (error < 0)
96 goto out;
97
98 strlcpy(card->driver, "AD1848", sizeof(card->driver));
99 strlcpy(card->shortname, chip->pcm->name, sizeof(card->shortname));
100
101 if (!thinkpad[n])
102 snprintf(card->longname, sizeof(card->longname),
103 "%s at 0x%lx, irq %d, dma %d",
104 chip->pcm->name, chip->port, irq[n], dma1[n]);
105 else
106 snprintf(card->longname, sizeof(card->longname),
107 "%s at 0x%lx, irq %d, dma %d [Thinkpad]",
108 chip->pcm->name, chip->port, irq[n], dma1[n]);
109
110 error = snd_card_register(card);
111 if (error < 0)
112 goto out;
113
114 dev_set_drvdata(dev, card);
115 return 0;
116
117 out: snd_card_free(card);
118 return error;
119 }
120
121 static int snd_ad1848_remove(struct device *dev, unsigned int n)
122 {
123 snd_card_free(dev_get_drvdata(dev));
124 return 0;
125 }
126
127 #ifdef CONFIG_PM
128 static int snd_ad1848_suspend(struct device *dev, unsigned int n, pm_message_t state)
129 {
130 struct snd_card *card = dev_get_drvdata(dev);
131 struct snd_wss *chip = card->private_data;
132
133 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
134 chip->suspend(chip);
135 return 0;
136 }
137
138 static int snd_ad1848_resume(struct device *dev, unsigned int n)
139 {
140 struct snd_card *card = dev_get_drvdata(dev);
141 struct snd_wss *chip = card->private_data;
142
143 chip->resume(chip);
144 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
145 return 0;
146 }
147 #endif
148
149 static struct isa_driver snd_ad1848_driver = {
150 .match = snd_ad1848_match,
151 .probe = snd_ad1848_probe,
152 .remove = snd_ad1848_remove,
153 #ifdef CONFIG_PM
154 .suspend = snd_ad1848_suspend,
155 .resume = snd_ad1848_resume,
156 #endif
157 .driver = {
158 .name = DEV_NAME
159 }
160 };
161
162 module_isa_driver(snd_ad1848_driver, SNDRV_CARDS);