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24#include <linux/init.h>
25#include <linux/err.h>
26#include <linux/isa.h>
27#include <linux/time.h>
28#include <linux/wait.h>
29#include <linux/module.h>
30#include <sound/core.h>
31#include <sound/wss.h>
32#include <sound/initval.h>
33
34#define CRD_NAME "Generic AD1848/AD1847/CS4248"
35#define DEV_NAME "ad1848"
36
37MODULE_DESCRIPTION(CRD_NAME);
38MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@perex.cz>");
39MODULE_LICENSE("GPL");
40MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1848},"
41 "{Analog Devices,AD1847},"
42 "{Crystal Semiconductors,CS4248}}");
43
44static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
45static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
46static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
47static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
48static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
49static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
50static bool thinkpad[SNDRV_CARDS];
51
52module_param_array(index, int, NULL, 0444);
53MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
54module_param_array(id, charp, NULL, 0444);
55MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
56module_param_array(enable, bool, NULL, 0444);
57MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
58module_param_array(port, long, NULL, 0444);
59MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
60module_param_array(irq, int, NULL, 0444);
61MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
62module_param_array(dma1, int, NULL, 0444);
63MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
64module_param_array(thinkpad, bool, NULL, 0444);
65MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");
66
67static int __devinit snd_ad1848_match(struct device *dev, unsigned int n)
68{
69 if (!enable[n])
70 return 0;
71
72 if (port[n] == SNDRV_AUTO_PORT) {
73 dev_err(dev, "please specify port\n");
74 return 0;
75 }
76 if (irq[n] == SNDRV_AUTO_IRQ) {
77 dev_err(dev, "please specify irq\n");
78 return 0;
79 }
80 if (dma1[n] == SNDRV_AUTO_DMA) {
81 dev_err(dev, "please specify dma1\n");
82 return 0;
83 }
84 return 1;
85}
86
87static int __devinit snd_ad1848_probe(struct device *dev, unsigned int n)
88{
89 struct snd_card *card;
90 struct snd_wss *chip;
91 struct snd_pcm *pcm;
92 int error;
93
94 error = snd_card_create(index[n], id[n], THIS_MODULE, 0, &card);
95 if (error < 0)
96 return error;
97
98 error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], -1,
99 thinkpad[n] ? WSS_HW_THINKPAD : WSS_HW_DETECT,
100 0, &chip);
101 if (error < 0)
102 goto out;
103
104 card->private_data = chip;
105
106 error = snd_wss_pcm(chip, 0, &pcm);
107 if (error < 0)
108 goto out;
109
110 error = snd_wss_mixer(chip);
111 if (error < 0)
112 goto out;
113
114 strcpy(card->driver, "AD1848");
115 strcpy(card->shortname, pcm->name);
116
117 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
118 pcm->name, chip->port, irq[n], dma1[n]);
119 if (thinkpad[n])
120 strcat(card->longname, " [Thinkpad]");
121
122 snd_card_set_dev(card, dev);
123
124 error = snd_card_register(card);
125 if (error < 0)
126 goto out;
127
128 dev_set_drvdata(dev, card);
129 return 0;
130
131out: snd_card_free(card);
132 return error;
133}
134
135static int __devexit snd_ad1848_remove(struct device *dev, unsigned int n)
136{
137 snd_card_free(dev_get_drvdata(dev));
138 dev_set_drvdata(dev, NULL);
139 return 0;
140}
141
142#ifdef CONFIG_PM
143static int snd_ad1848_suspend(struct device *dev, unsigned int n, pm_message_t state)
144{
145 struct snd_card *card = dev_get_drvdata(dev);
146 struct snd_wss *chip = card->private_data;
147
148 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
149 chip->suspend(chip);
150 return 0;
151}
152
153static int snd_ad1848_resume(struct device *dev, unsigned int n)
154{
155 struct snd_card *card = dev_get_drvdata(dev);
156 struct snd_wss *chip = card->private_data;
157
158 chip->resume(chip);
159 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
160 return 0;
161}
162#endif
163
164static struct isa_driver snd_ad1848_driver = {
165 .match = snd_ad1848_match,
166 .probe = snd_ad1848_probe,
167 .remove = __devexit_p(snd_ad1848_remove),
168#ifdef CONFIG_PM
169 .suspend = snd_ad1848_suspend,
170 .resume = snd_ad1848_resume,
171#endif
172 .driver = {
173 .name = DEV_NAME
174 }
175};
176
177static int __init alsa_card_ad1848_init(void)
178{
179 return isa_register_driver(&snd_ad1848_driver, SNDRV_CARDS);
180}
181
182static void __exit alsa_card_ad1848_exit(void)
183{
184 isa_unregister_driver(&snd_ad1848_driver);
185}
186
187module_init(alsa_card_ad1848_init);
188module_exit(alsa_card_ad1848_exit);
189
