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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_hw_array(port, long, ioport, NULL, 0444);
59MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
60module_param_hw_array(irq, int, irq, NULL, 0444);
61MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
62module_param_hw_array(dma1, int, dma, 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 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 snd_ad1848_probe(struct device *dev, unsigned int n)
88{
89 struct snd_card *card;
90 struct snd_wss *chip;
91 int error;
92
93 error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
94 if (error < 0)
95 return error;
96
97 error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], -1,
98 thinkpad[n] ? WSS_HW_THINKPAD : WSS_HW_DETECT,
99 0, &chip);
100 if (error < 0)
101 goto out;
102
103 card->private_data = chip;
104
105 error = snd_wss_pcm(chip, 0);
106 if (error < 0)
107 goto out;
108
109 error = snd_wss_mixer(chip);
110 if (error < 0)
111 goto out;
112
113 strlcpy(card->driver, "AD1848", sizeof(card->driver));
114 strlcpy(card->shortname, chip->pcm->name, sizeof(card->shortname));
115
116 if (!thinkpad[n])
117 snprintf(card->longname, sizeof(card->longname),
118 "%s at 0x%lx, irq %d, dma %d",
119 chip->pcm->name, chip->port, irq[n], dma1[n]);
120 else
121 snprintf(card->longname, sizeof(card->longname),
122 "%s at 0x%lx, irq %d, dma %d [Thinkpad]",
123 chip->pcm->name, chip->port, irq[n], dma1[n]);
124
125 error = snd_card_register(card);
126 if (error < 0)
127 goto out;
128
129 dev_set_drvdata(dev, card);
130 return 0;
131
132out: snd_card_free(card);
133 return error;
134}
135
136static int snd_ad1848_remove(struct device *dev, unsigned int n)
137{
138 snd_card_free(dev_get_drvdata(dev));
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 = 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
177module_isa_driver(snd_ad1848_driver, SNDRV_CARDS);
178