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1da177e4 LT |
1 | /* |
2 | * Generic driver for CS4231 chips | |
3 | * Copyright (c) by Jaroslav Kysela <perex@suse.cz> | |
4 | * Originally the CS4232/CS4232A driver, modified for use on CS4231 by | |
5 | * Tugrul Galatali <galatalt@stuy.edu> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | */ | |
22 | ||
23 | #include <sound/driver.h> | |
24 | #include <linux/init.h> | |
25 | #include <linux/time.h> | |
26 | #include <linux/wait.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <sound/core.h> | |
29 | #include <sound/cs4231.h> | |
30 | #include <sound/mpu401.h> | |
31 | #include <sound/initval.h> | |
32 | ||
33 | MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); | |
34 | MODULE_DESCRIPTION("Generic CS4231"); | |
35 | MODULE_LICENSE("GPL"); | |
36 | MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4231}}"); | |
37 | ||
38 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ | |
39 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ | |
40 | static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ | |
41 | static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ | |
42 | static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ | |
43 | static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */ | |
44 | static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 9,11,12,15 */ | |
45 | static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ | |
46 | static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ | |
47 | ||
48 | module_param_array(index, int, NULL, 0444); | |
49 | MODULE_PARM_DESC(index, "Index value for CS4231 soundcard."); | |
50 | module_param_array(id, charp, NULL, 0444); | |
51 | MODULE_PARM_DESC(id, "ID string for CS4231 soundcard."); | |
52 | module_param_array(enable, bool, NULL, 0444); | |
53 | MODULE_PARM_DESC(enable, "Enable CS4231 soundcard."); | |
54 | module_param_array(port, long, NULL, 0444); | |
55 | MODULE_PARM_DESC(port, "Port # for CS4231 driver."); | |
56 | module_param_array(mpu_port, long, NULL, 0444); | |
57 | MODULE_PARM_DESC(mpu_port, "MPU-401 port # for CS4231 driver."); | |
58 | module_param_array(irq, int, NULL, 0444); | |
59 | MODULE_PARM_DESC(irq, "IRQ # for CS4231 driver."); | |
60 | module_param_array(mpu_irq, int, NULL, 0444); | |
61 | MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for CS4231 driver."); | |
62 | module_param_array(dma1, int, NULL, 0444); | |
63 | MODULE_PARM_DESC(dma1, "DMA1 # for CS4231 driver."); | |
64 | module_param_array(dma2, int, NULL, 0444); | |
65 | MODULE_PARM_DESC(dma2, "DMA2 # for CS4231 driver."); | |
66 | ||
67 | static snd_card_t *snd_cs4231_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; | |
68 | ||
69 | ||
70 | static int __init snd_card_cs4231_probe(int dev) | |
71 | { | |
72 | snd_card_t *card; | |
73 | struct snd_card_cs4231 *acard; | |
74 | snd_pcm_t *pcm = NULL; | |
75 | cs4231_t *chip; | |
76 | int err; | |
77 | ||
78 | if (port[dev] == SNDRV_AUTO_PORT) { | |
79 | snd_printk("specify port\n"); | |
80 | return -EINVAL; | |
81 | } | |
82 | if (irq[dev] == SNDRV_AUTO_IRQ) { | |
83 | snd_printk("specify irq\n"); | |
84 | return -EINVAL; | |
85 | } | |
86 | if (dma1[dev] == SNDRV_AUTO_DMA) { | |
87 | snd_printk("specify dma1\n"); | |
88 | return -EINVAL; | |
89 | } | |
90 | card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); | |
91 | if (card == NULL) | |
92 | return -ENOMEM; | |
93 | acard = (struct snd_card_cs4231 *)card->private_data; | |
94 | if ((err = snd_cs4231_create(card, port[dev], -1, | |
95 | irq[dev], | |
96 | dma1[dev], | |
97 | dma2[dev], | |
98 | CS4231_HW_DETECT, | |
99 | 0, &chip)) < 0) { | |
100 | snd_card_free(card); | |
101 | return err; | |
102 | } | |
103 | ||
104 | if ((err = snd_cs4231_pcm(chip, 0, &pcm)) < 0) { | |
105 | snd_card_free(card); | |
106 | return err; | |
107 | } | |
108 | ||
109 | strcpy(card->driver, "CS4231"); | |
110 | strcpy(card->shortname, pcm->name); | |
111 | sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d", | |
112 | pcm->name, chip->port, irq[dev], dma1[dev]); | |
113 | if (dma2[dev] >= 0) | |
114 | sprintf(card->longname + strlen(card->longname), "&%d", dma2[dev]); | |
115 | ||
116 | if ((err = snd_cs4231_mixer(chip)) < 0) { | |
117 | snd_card_free(card); | |
118 | return err; | |
119 | } | |
120 | if ((err = snd_cs4231_timer(chip, 0, NULL)) < 0) { | |
121 | snd_card_free(card); | |
122 | return err; | |
123 | } | |
124 | ||
125 | if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) { | |
126 | if (mpu_irq[dev] == SNDRV_AUTO_IRQ) | |
127 | mpu_irq[dev] = -1; | |
128 | if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232, | |
129 | mpu_port[dev], 0, | |
130 | mpu_irq[dev], | |
131 | mpu_irq[dev] >= 0 ? SA_INTERRUPT : 0, | |
132 | NULL) < 0) | |
133 | printk(KERN_ERR "cs4231: MPU401 not detected\n"); | |
134 | } | |
135 | if ((err = snd_card_register(card)) < 0) { | |
136 | snd_card_free(card); | |
137 | return err; | |
138 | } | |
139 | snd_cs4231_cards[dev] = card; | |
140 | return 0; | |
141 | } | |
142 | ||
143 | static int __init alsa_card_cs4231_init(void) | |
144 | { | |
145 | int dev, cards; | |
146 | ||
147 | for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) { | |
148 | if (snd_card_cs4231_probe(dev) >= 0) | |
149 | cards++; | |
150 | } | |
151 | if (!cards) { | |
152 | #ifdef MODULE | |
153 | printk(KERN_ERR "CS4231 soundcard not found or device busy\n"); | |
154 | #endif | |
155 | return -ENODEV; | |
156 | } | |
157 | return 0; | |
158 | } | |
159 | ||
160 | static void __exit alsa_card_cs4231_exit(void) | |
161 | { | |
162 | int idx; | |
163 | ||
164 | for (idx = 0; idx < SNDRV_CARDS; idx++) | |
165 | snd_card_free(snd_cs4231_cards[idx]); | |
166 | } | |
167 | ||
168 | module_init(alsa_card_cs4231_init) | |
169 | module_exit(alsa_card_cs4231_exit) |