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@suse.cz>
5 * Based on card-4232.c by Jaroslav Kysela <perex@suse.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 <sound/driver.h>
25 #include <linux/init.h>
26 #include <linux/time.h>
27 #include <linux/wait.h>
28 #include <linux/moduleparam.h>
29 #include <sound/core.h>
30 #include <sound/ad1848.h>
31 #include <sound/initval.h>
32
33 MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@suse.cz>");
34 MODULE_DESCRIPTION("AD1848/AD1847/CS4248");
35 MODULE_LICENSE("GPL");
36 MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1848},"
37 "{Analog Devices,AD1847},"
38 "{Crystal Semiconductors,CS4248}}");
39
40 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
41 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
42 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
43 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
44 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */
45 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
46 static int thinkpad[SNDRV_CARDS]; /* Thinkpad special case */
47
48 module_param_array(index, int, NULL, 0444);
49 MODULE_PARM_DESC(index, "Index value for AD1848 soundcard.");
50 module_param_array(id, charp, NULL, 0444);
51 MODULE_PARM_DESC(id, "ID string for AD1848 soundcard.");
52 module_param_array(enable, bool, NULL, 0444);
53 MODULE_PARM_DESC(enable, "Enable AD1848 soundcard.");
54 module_param_array(port, long, NULL, 0444);
55 MODULE_PARM_DESC(port, "Port # for AD1848 driver.");
56 module_param_array(irq, int, NULL, 0444);
57 MODULE_PARM_DESC(irq, "IRQ # for AD1848 driver.");
58 module_param_array(dma1, int, NULL, 0444);
59 MODULE_PARM_DESC(dma1, "DMA1 # for AD1848 driver.");
60 module_param_array(thinkpad, bool, NULL, 0444);
61 MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");
62
63 static snd_card_t *snd_ad1848_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
64
65
66 static int __init snd_card_ad1848_probe(int dev)
67 {
68 snd_card_t *card;
69 ad1848_t *chip;
70 snd_pcm_t *pcm;
71 int err;
72
73 if (port[dev] == SNDRV_AUTO_PORT) {
74 snd_printk(KERN_ERR "ad1848: specify port\n");
75 return -EINVAL;
76 }
77 if (irq[dev] == SNDRV_AUTO_IRQ) {
78 snd_printk(KERN_ERR "ad1848: specify irq\n");
79 return -EINVAL;
80 }
81 if (dma1[dev] == SNDRV_AUTO_DMA) {
82 snd_printk(KERN_ERR "ad1848: specify dma1\n");
83 return -EINVAL;
84 }
85
86 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
87 if (card == NULL)
88 return -ENOMEM;
89
90 if ((err = snd_ad1848_create(card, port[dev],
91 irq[dev],
92 dma1[dev],
93 thinkpad[dev] ? AD1848_HW_THINKPAD : AD1848_HW_DETECT,
94 &chip)) < 0) {
95 snd_card_free(card);
96 return err;
97 }
98
99 if ((err = snd_ad1848_pcm(chip, 0, &pcm)) < 0) {
100 snd_card_free(card);
101 return err;
102 }
103 if ((err = snd_ad1848_mixer(chip)) < 0) {
104 snd_card_free(card);
105 return err;
106 }
107 strcpy(card->driver, "AD1848");
108 strcpy(card->shortname, pcm->name);
109
110 sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
111 pcm->name, chip->port, irq[dev], dma1[dev]);
112
113 if (thinkpad[dev]) {
114 strcat(card->longname, " [Thinkpad]");
115 }
116
117 if ((err = snd_card_register(card)) < 0) {
118 snd_card_free(card);
119 return err;
120 }
121 snd_ad1848_cards[dev] = card;
122 return 0;
123 }
124
125 static int __init alsa_card_ad1848_init(void)
126 {
127 int dev, cards;
128
129 for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++)
130 if (snd_card_ad1848_probe(dev) >= 0)
131 cards++;
132
133 if (!cards) {
134 #ifdef MODULE
135 printk(KERN_ERR "AD1848 soundcard not found or device busy\n");
136 #endif
137 return -ENODEV;
138 }
139 return 0;
140 }
141
142 static void __exit alsa_card_ad1848_exit(void)
143 {
144 int idx;
145
146 for (idx = 0; idx < SNDRV_CARDS; idx++)
147 snd_card_free(snd_ad1848_cards[idx]);
148 }
149
150 module_init(alsa_card_ad1848_init)
151 module_exit(alsa_card_ad1848_exit)
152
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