xref: /linux/sound/isa/ad1848/ad1848.c (revision b889fcf63cb62e7fdb7816565e28f44dbe4a76a5)
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/module.h>
30 #include <sound/core.h>
31 #include <sound/wss.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 bool 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 bool 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 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 		dev_err(dev, "please specify port\n");
74 		return 0;
75 	}
76 	if (irq[n] == SNDRV_AUTO_IRQ) {
77 		dev_err(dev, "please specify irq\n");
78 		return 0;
79 	}
80 	if (dma1[n] == SNDRV_AUTO_DMA) {
81 		dev_err(dev, "please specify dma1\n");
82 		return 0;
83 	}
84 	return 1;
85 }
86 
87 static int snd_ad1848_probe(struct device *dev, unsigned int n)
88 {
89 	struct snd_card *card;
90 	struct snd_wss *chip;
91 	struct snd_pcm *pcm;
92 	int error;
93 
94 	error = snd_card_create(index[n], id[n], THIS_MODULE, 0, &card);
95 	if (error < 0)
96 		return error;
97 
98 	error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], -1,
99 			thinkpad[n] ? WSS_HW_THINKPAD : WSS_HW_DETECT,
100 			0, &chip);
101 	if (error < 0)
102 		goto out;
103 
104 	card->private_data = chip;
105 
106 	error = snd_wss_pcm(chip, 0, &pcm);
107 	if (error < 0)
108 		goto out;
109 
110 	error = snd_wss_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 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_wss *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_wss *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		= 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);
189