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1da177e4 LT |
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) |