summaryrefslogtreecommitdiff
path: root/sound/isa/ad1848/ad1848.c
blob: 1019e9fdff539e6d4c5b353be6525ed8a1262b54 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
/*
 *  Generic driver for AD1848/AD1847/CS4248 chips (0.1 Alpha)
 *  Copyright (c) by Tugrul Galatali <galatalt@stuy.edu>,
 *                   Jaroslav Kysela <perex@suse.cz>
 *  Based on card-4232.c by Jaroslav Kysela <perex@suse.cz>
 *
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include <sound/driver.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/time.h>
#include <linux/wait.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include <sound/ad1848.h>
#include <sound/initval.h>

MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@suse.cz>");
MODULE_DESCRIPTION("AD1848/AD1847/CS4248");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1848},"
	        "{Analog Devices,AD1847},"
		"{Crystal Semiconductors,CS4248}}");

static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;	/* Enable this card */
static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,11,12,15 */
static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3,5,6,7 */
static int thinkpad[SNDRV_CARDS];			/* Thinkpad special case */

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for AD1848 soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for AD1848 soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable AD1848 soundcard.");
module_param_array(port, long, NULL, 0444);
MODULE_PARM_DESC(port, "Port # for AD1848 driver.");
module_param_array(irq, int, NULL, 0444);
MODULE_PARM_DESC(irq, "IRQ # for AD1848 driver.");
module_param_array(dma1, int, NULL, 0444);
MODULE_PARM_DESC(dma1, "DMA1 # for AD1848 driver.");
module_param_array(thinkpad, bool, NULL, 0444);
MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");


static int __init snd_ad1848_probe(struct platform_device *pdev)
{
	int dev = pdev->id;
	struct snd_card *card;
	struct snd_ad1848 *chip;
	struct snd_pcm *pcm;
	int err;

	if (port[dev] == SNDRV_AUTO_PORT) {
		snd_printk(KERN_ERR "ad1848: specify port\n");
		return -EINVAL;
	}
	if (irq[dev] == SNDRV_AUTO_IRQ) {
		snd_printk(KERN_ERR "ad1848: specify irq\n");
		return -EINVAL;
	}
	if (dma1[dev] == SNDRV_AUTO_DMA) {
		snd_printk(KERN_ERR "ad1848: specify dma1\n");
		return -EINVAL;
	}

	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
	if (card == NULL)
		return -ENOMEM;

	if ((err = snd_ad1848_create(card, port[dev],
				     irq[dev],
				     dma1[dev],
				     thinkpad[dev] ? AD1848_HW_THINKPAD : AD1848_HW_DETECT,
				     &chip)) < 0)
		goto _err;
	card->private_data = chip;

	if ((err = snd_ad1848_pcm(chip, 0, &pcm)) < 0)
		goto _err;

	if ((err = snd_ad1848_mixer(chip)) < 0)
		goto _err;

	strcpy(card->driver, "AD1848");
	strcpy(card->shortname, pcm->name);

	sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
		pcm->name, chip->port, irq[dev], dma1[dev]);

	if (thinkpad[dev])
		strcat(card->longname, " [Thinkpad]");

	snd_card_set_dev(card, &pdev->dev);

	if ((err = snd_card_register(card)) < 0)
		goto _err;

	platform_set_drvdata(pdev, card);
	return 0;

 _err:
	snd_card_free(card);
	return err;
}

static int __devexit snd_ad1848_remove(struct platform_device *devptr)
{
	snd_card_free(platform_get_drvdata(devptr));
	platform_set_drvdata(devptr, NULL);
	return 0;
}

#ifdef CONFIG_PM
static int snd_ad1848_suspend(struct platform_device *pdev, pm_message_t state)
{
	struct snd_card *card = platform_get_drvdata(pdev);
	struct snd_ad1848 *chip = card->private_data;

	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
	chip->suspend(chip);
	return 0;
}

static int snd_ad1848_resume(struct platform_device *pdev)
{
	struct snd_card *card = platform_get_drvdata(pdev);
	struct snd_ad1848 *chip = card->private_data;

	chip->resume(chip);
	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
	return 0;
}
#endif

#define SND_AD1848_DRIVER	"snd_ad1848"

static struct platform_driver snd_ad1848_driver = {
	.probe		= snd_ad1848_probe,
	.remove		= __devexit_p(snd_ad1848_remove),
#ifdef CONFIG_PM
	.suspend	= snd_ad1848_suspend,
	.resume		= snd_ad1848_resume,
#endif
	.driver		= {
		.name	= SND_AD1848_DRIVER
	},
};

static int __init alsa_card_ad1848_init(void)
{
	int i, cards, err;

	err = platform_driver_register(&snd_ad1848_driver);
	if (err < 0)
		return err;

	cards = 0;
	for (i = 0; i < SNDRV_CARDS && enable[i]; i++) {
		struct platform_device *device;
		device = platform_device_register_simple(SND_AD1848_DRIVER,
							 i, NULL, 0);
		if (IS_ERR(device)) {
			err = PTR_ERR(device);
			goto errout;
		}
		cards++;
	}
	if (!cards) {
#ifdef MODULE
		printk(KERN_ERR "AD1848 soundcard not found or device busy\n");
#endif
		err = -ENODEV;
		goto errout;
	}
	return 0;

 errout:
	platform_driver_unregister(&snd_ad1848_driver);
	return err;
}

static void __exit alsa_card_ad1848_exit(void)
{
	platform_driver_unregister(&snd_ad1848_driver);
}

module_init(alsa_card_ad1848_init)
module_exit(alsa_card_ad1848_exit)