xref: /linux/sound/isa/ad1848/ad1848.c (revision 75b1a8f9d62e50f05d0e4e9f3c8bcde32527ffc1)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  Generic driver for AD1848/AD1847/CS4248 chips (0.1 Alpha)
4  *  Copyright (c) by Tugrul Galatali <galatalt@stuy.edu>,
5  *                   Jaroslav Kysela <perex@perex.cz>
6  *  Based on card-4232.c by Jaroslav Kysela <perex@perex.cz>
7  */
8 
9 #include <linux/init.h>
10 #include <linux/err.h>
11 #include <linux/isa.h>
12 #include <linux/time.h>
13 #include <linux/wait.h>
14 #include <linux/module.h>
15 #include <sound/core.h>
16 #include <sound/wss.h>
17 #include <sound/initval.h>
18 
19 #define CRD_NAME "Generic AD1848/AD1847/CS4248"
20 #define DEV_NAME "ad1848"
21 
22 MODULE_DESCRIPTION(CRD_NAME);
23 MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@perex.cz>");
24 MODULE_LICENSE("GPL");
25 MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1848},"
26 	        "{Analog Devices,AD1847},"
27 		"{Crystal Semiconductors,CS4248}}");
28 
29 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
30 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
31 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;	/* Enable this card */
32 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
33 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,11,12,15 */
34 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3,5,6,7 */
35 static bool thinkpad[SNDRV_CARDS];			/* Thinkpad special case */
36 
37 module_param_array(index, int, NULL, 0444);
38 MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
39 module_param_array(id, charp, NULL, 0444);
40 MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
41 module_param_array(enable, bool, NULL, 0444);
42 MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
43 module_param_hw_array(port, long, ioport, NULL, 0444);
44 MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
45 module_param_hw_array(irq, int, irq, NULL, 0444);
46 MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
47 module_param_hw_array(dma1, int, dma, NULL, 0444);
48 MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
49 module_param_array(thinkpad, bool, NULL, 0444);
50 MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");
51 
52 static int snd_ad1848_match(struct device *dev, unsigned int n)
53 {
54 	if (!enable[n])
55 		return 0;
56 
57 	if (port[n] == SNDRV_AUTO_PORT) {
58 		dev_err(dev, "please specify port\n");
59 		return 0;
60 	}
61 	if (irq[n] == SNDRV_AUTO_IRQ) {
62 		dev_err(dev, "please specify irq\n");
63 		return 0;
64 	}
65 	if (dma1[n] == SNDRV_AUTO_DMA) {
66 		dev_err(dev, "please specify dma1\n");
67 		return 0;
68 	}
69 	return 1;
70 }
71 
72 static int snd_ad1848_probe(struct device *dev, unsigned int n)
73 {
74 	struct snd_card *card;
75 	struct snd_wss *chip;
76 	int error;
77 
78 	error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
79 	if (error < 0)
80 		return error;
81 
82 	error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], -1,
83 			thinkpad[n] ? WSS_HW_THINKPAD : WSS_HW_DETECT,
84 			0, &chip);
85 	if (error < 0)
86 		goto out;
87 
88 	card->private_data = chip;
89 
90 	error = snd_wss_pcm(chip, 0);
91 	if (error < 0)
92 		goto out;
93 
94 	error = snd_wss_mixer(chip);
95 	if (error < 0)
96 		goto out;
97 
98 	strscpy(card->driver, "AD1848", sizeof(card->driver));
99 	strscpy(card->shortname, chip->pcm->name, sizeof(card->shortname));
100 
101 	if (!thinkpad[n])
102 		snprintf(card->longname, sizeof(card->longname),
103 			 "%s at 0x%lx, irq %d, dma %d",
104 			 chip->pcm->name, chip->port, irq[n], dma1[n]);
105 	else
106 		snprintf(card->longname, sizeof(card->longname),
107 			 "%s at 0x%lx, irq %d, dma %d [Thinkpad]",
108 			 chip->pcm->name, chip->port, irq[n], dma1[n]);
109 
110 	error = snd_card_register(card);
111 	if (error < 0)
112 		goto out;
113 
114 	dev_set_drvdata(dev, card);
115 	return 0;
116 
117 out:	snd_card_free(card);
118 	return error;
119 }
120 
121 static int snd_ad1848_remove(struct device *dev, unsigned int n)
122 {
123 	snd_card_free(dev_get_drvdata(dev));
124 	return 0;
125 }
126 
127 #ifdef CONFIG_PM
128 static int snd_ad1848_suspend(struct device *dev, unsigned int n, pm_message_t state)
129 {
130 	struct snd_card *card = dev_get_drvdata(dev);
131 	struct snd_wss *chip = card->private_data;
132 
133 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
134 	chip->suspend(chip);
135 	return 0;
136 }
137 
138 static int snd_ad1848_resume(struct device *dev, unsigned int n)
139 {
140 	struct snd_card *card = dev_get_drvdata(dev);
141 	struct snd_wss *chip = card->private_data;
142 
143 	chip->resume(chip);
144 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
145 	return 0;
146 }
147 #endif
148 
149 static struct isa_driver snd_ad1848_driver = {
150 	.match		= snd_ad1848_match,
151 	.probe		= snd_ad1848_probe,
152 	.remove		= snd_ad1848_remove,
153 #ifdef CONFIG_PM
154 	.suspend	= snd_ad1848_suspend,
155 	.resume		= snd_ad1848_resume,
156 #endif
157 	.driver		= {
158 		.name	= DEV_NAME
159 	}
160 };
161 
162 module_isa_driver(snd_ad1848_driver, SNDRV_CARDS);
163