1 /*
2 * Generic driver for AD1848/AD1847/CS4248 chips (0.1 Alpha)
3 * Copyright (c) by Tugrul Galatali <galatalt@stuy.edu>,
4 * Jaroslav Kysela <perex@perex.cz>
5 * Based on card-4232.c by Jaroslav Kysela <perex@perex.cz>
6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
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/moduleparam.h>
30 #include <sound/core.h>
31 #include <sound/ad1848.h>
32 #include <sound/initval.h>
33
34 #define CRD_NAME "Generic AD1848/AD1847/CS4248"
35 #define DEV_NAME "ad1848"
36
37 MODULE_DESCRIPTION(CRD_NAME);
38 MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@perex.cz>");
39 MODULE_LICENSE("GPL");
40 MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1848},"
41 "{Analog Devices,AD1847},"
42 "{Crystal Semiconductors,CS4248}}");
43
44 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
45 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
46 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
47 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
48 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */
49 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
50 static int thinkpad[SNDRV_CARDS]; /* Thinkpad special case */
51
52 module_param_array(index, int, NULL, 0444);
53 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
54 module_param_array(id, charp, NULL, 0444);
55 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
56 module_param_array(enable, bool, NULL, 0444);
57 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
58 module_param_array(port, long, NULL, 0444);
59 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
60 module_param_array(irq, int, NULL, 0444);
61 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
62 module_param_array(dma1, int, NULL, 0444);
63 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
64 module_param_array(thinkpad, bool, NULL, 0444);
65 MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");
66
67 static 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 snd_printk(KERN_ERR "%s: please specify port\n", dev->bus_id);
74 return 0;
75 }
76 if (irq[n] == SNDRV_AUTO_IRQ) {
77 snd_printk(KERN_ERR "%s: please specify irq\n", dev->bus_id);
78 return 0;
79 }
80 if (dma1[n] == SNDRV_AUTO_DMA) {
81 snd_printk(KERN_ERR "%s: please specify dma1\n", dev->bus_id);
82 return 0;
83 }
84 return 1;
85 }
86
87 static int __devinit snd_ad1848_probe(struct device *dev, unsigned int n)
88 {
89 struct snd_card *card;
90 struct snd_ad1848 *chip;
91 struct snd_pcm *pcm;
92 int error;
93
94 card = snd_card_new(index[n], id[n], THIS_MODULE, 0);
95 if (!card)
96 return -EINVAL;
97
98 error = snd_ad1848_create(card, port[n], irq[n], dma1[n],
99 thinkpad[n] ? AD1848_HW_THINKPAD : AD1848_HW_DETECT, &chip);
100 if (error < 0)
101 goto out;
102
103 card->private_data = chip;
104
105 error = snd_ad1848_pcm(chip, 0, &pcm);
106 if (error < 0)
107 goto out;
108
109 error = snd_ad1848_mixer(chip);
110 if (error < 0)
111 goto out;
112
113 strcpy(card->driver, "AD1848");
114 strcpy(card->shortname, pcm->name);
115
116 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
117 pcm->name, chip->port, irq[n], dma1[n]);
118 if (thinkpad[n])
119 strcat(card->longname, " [Thinkpad]");
120
121 snd_card_set_dev(card, dev);
122
123 error = snd_card_register(card);
124 if (error < 0)
125 goto out;
126
127 dev_set_drvdata(dev, card);
128 return 0;
129
130 out: snd_card_free(card);
131 return error;
132 }
133
134 static int __devexit snd_ad1848_remove(struct device *dev, unsigned int n)
135 {
136 snd_card_free(dev_get_drvdata(dev));
137 dev_set_drvdata(dev, NULL);
138 return 0;
139 }
140
141 #ifdef CONFIG_PM
142 static int snd_ad1848_suspend(struct device *dev, unsigned int n, pm_message_t state)
143 {
144 struct snd_card *card = dev_get_drvdata(dev);
145 struct snd_ad1848 *chip = card->private_data;
146
147 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
148 chip->suspend(chip);
149 return 0;
150 }
151
152 static int snd_ad1848_resume(struct device *dev, unsigned int n)
153 {
154 struct snd_card *card = dev_get_drvdata(dev);
155 struct snd_ad1848 *chip = card->private_data;
156
157 chip->resume(chip);
158 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
159 return 0;
160 }
161 #endif
162
163 static struct isa_driver snd_ad1848_driver = {
164 .match = snd_ad1848_match,
165 .probe = snd_ad1848_probe,
166 .remove = __devexit_p(snd_ad1848_remove),
167 #ifdef CONFIG_PM
168 .suspend = snd_ad1848_suspend,
169 .resume = snd_ad1848_resume,
170 #endif
171 .driver = {
172 .name = DEV_NAME
173 }
174 };
175
176 static int __init alsa_card_ad1848_init(void)
177 {
178 return isa_register_driver(&snd_ad1848_driver, SNDRV_CARDS);
179 }
180
181 static void __exit alsa_card_ad1848_exit(void)
182 {
183 isa_unregister_driver(&snd_ad1848_driver);
184 }
185
186 module_init(alsa_card_ad1848_init);
187 module_exit(alsa_card_ad1848_exit);
188
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