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