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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 <sound/driver.h> | |
25 | #include <linux/init.h> | |
26 | #include <linux/err.h> | |
27 | #include <linux/isa.h> | |
28 | #include <linux/time.h> | |
29 | #include <linux/wait.h> | |
30 | #include <linux/moduleparam.h> | |
31 | #include <sound/core.h> | |
32 | #include <sound/ad1848.h> | |
33 | #include <sound/initval.h> | |
34 | ||
35 | #define CRD_NAME "Generic AD1848/AD1847/CS4248" | |
36 | #define DEV_NAME "ad1848" | |
37 | ||
38 | MODULE_DESCRIPTION(CRD_NAME); | |
39 | MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@perex.cz>"); | |
40 | MODULE_LICENSE("GPL"); | |
41 | MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1848}," | |
42 | "{Analog Devices,AD1847}," | |
43 | "{Crystal Semiconductors,CS4248}}"); | |
44 | ||
45 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ | |
46 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ | |
47 | static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ | |
48 | static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ | |
49 | static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */ | |
50 | static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ | |
51 | static int thinkpad[SNDRV_CARDS]; /* Thinkpad special case */ | |
52 | ||
53 | module_param_array(index, int, NULL, 0444); | |
54 | MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard."); | |
55 | module_param_array(id, charp, NULL, 0444); | |
56 | MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard."); | |
57 | module_param_array(enable, bool, NULL, 0444); | |
58 | MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard."); | |
59 | module_param_array(port, long, NULL, 0444); | |
60 | MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver."); | |
61 | module_param_array(irq, int, NULL, 0444); | |
62 | MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver."); | |
63 | module_param_array(dma1, int, NULL, 0444); | |
64 | MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver."); | |
65 | module_param_array(thinkpad, bool, NULL, 0444); | |
66 | MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series."); | |
67 | ||
68 | static int __devinit snd_ad1848_match(struct device *dev, unsigned int n) | |
69 | { | |
70 | if (!enable[n]) | |
71 | return 0; | |
72 | ||
73 | if (port[n] == SNDRV_AUTO_PORT) { | |
74 | snd_printk(KERN_ERR "%s: please specify port\n", dev->bus_id); | |
75 | return 0; | |
76 | } | |
77 | if (irq[n] == SNDRV_AUTO_IRQ) { | |
78 | snd_printk(KERN_ERR "%s: please specify irq\n", dev->bus_id); | |
79 | return 0; | |
80 | } | |
81 | if (dma1[n] == SNDRV_AUTO_DMA) { | |
82 | snd_printk(KERN_ERR "%s: please specify dma1\n", dev->bus_id); | |
83 | return 0; | |
84 | } | |
85 | return 1; | |
86 | } | |
87 | ||
88 | static int __devinit snd_ad1848_probe(struct device *dev, unsigned int n) | |
89 | { | |
90 | struct snd_card *card; | |
91 | struct snd_ad1848 *chip; | |
92 | struct snd_pcm *pcm; | |
93 | int error; | |
94 | ||
95 | card = snd_card_new(index[n], id[n], THIS_MODULE, 0); | |
96 | if (!card) | |
97 | return -EINVAL; | |
98 | ||
99 | error = snd_ad1848_create(card, port[n], irq[n], dma1[n], | |
100 | thinkpad[n] ? AD1848_HW_THINKPAD : AD1848_HW_DETECT, &chip); | |
101 | if (error < 0) | |
102 | goto out; | |
103 | ||
104 | card->private_data = chip; | |
105 | ||
106 | error = snd_ad1848_pcm(chip, 0, &pcm); | |
107 | if (error < 0) | |
108 | goto out; | |
109 | ||
110 | error = snd_ad1848_mixer(chip); | |
111 | if (error < 0) | |
112 | goto out; | |
113 | ||
114 | strcpy(card->driver, "AD1848"); | |
115 | strcpy(card->shortname, pcm->name); | |
116 | ||
117 | sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d", | |
118 | pcm->name, chip->port, irq[n], dma1[n]); | |
119 | if (thinkpad[n]) | |
120 | strcat(card->longname, " [Thinkpad]"); | |
121 | ||
122 | snd_card_set_dev(card, dev); | |
123 | ||
124 | error = snd_card_register(card); | |
125 | if (error < 0) | |
126 | goto out; | |
127 | ||
128 | dev_set_drvdata(dev, card); | |
129 | return 0; | |
130 | ||
131 | out: snd_card_free(card); | |
132 | return error; | |
133 | } | |
134 | ||
135 | static int __devexit snd_ad1848_remove(struct device *dev, unsigned int n) | |
136 | { | |
137 | snd_card_free(dev_get_drvdata(dev)); | |
138 | dev_set_drvdata(dev, NULL); | |
139 | return 0; | |
140 | } | |
141 | ||
142 | #ifdef CONFIG_PM | |
143 | static 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_ad1848 *chip = card->private_data; | |
147 | ||
148 | snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); | |
149 | chip->suspend(chip); | |
150 | return 0; | |
151 | } | |
152 | ||
153 | static int snd_ad1848_resume(struct device *dev, unsigned int n) | |
154 | { | |
155 | struct snd_card *card = dev_get_drvdata(dev); | |
156 | struct snd_ad1848 *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 | ||
164 | static struct isa_driver snd_ad1848_driver = { | |
165 | .match = snd_ad1848_match, | |
166 | .probe = snd_ad1848_probe, | |
167 | .remove = __devexit_p(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 | ||
177 | static int __init alsa_card_ad1848_init(void) | |
178 | { | |
179 | return isa_register_driver(&snd_ad1848_driver, SNDRV_CARDS); | |
180 | } | |
181 | ||
182 | static void __exit alsa_card_ad1848_exit(void) | |
183 | { | |
184 | isa_unregister_driver(&snd_ad1848_driver); | |
185 | } | |
186 | ||
187 | module_init(alsa_card_ad1848_init); | |
188 | module_exit(alsa_card_ad1848_exit); |