summaryrefslogtreecommitdiffstats
path: root/sound/isa/cs423x/cs4231.c
blob: ab67b5c2590d97afa6afc9e538a333f02fa19fe3 (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
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
/*
 *  Generic driver for CS4231 chips
 *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
 *  Originally the CS4232/CS4232A driver, modified for use on CS4231 by
 *  Tugrul Galatali <galatalt@stuy.edu>
 *
 *   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/cs4231.h>
#include <sound/mpu401.h>
#include <sound/initval.h>

MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
MODULE_DESCRIPTION("Generic CS4231");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4231}}");

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 long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,11,12,15 */
static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 9,11,12,15 */
static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3,5,6,7 */
static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3,5,6,7 */

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for CS4231 soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for CS4231 soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable CS4231 soundcard.");
module_param_array(port, long, NULL, 0444);
MODULE_PARM_DESC(port, "Port # for CS4231 driver.");
module_param_array(mpu_port, long, NULL, 0444);
MODULE_PARM_DESC(mpu_port, "MPU-401 port # for CS4231 driver.");
module_param_array(irq, int, NULL, 0444);
MODULE_PARM_DESC(irq, "IRQ # for CS4231 driver.");
module_param_array(mpu_irq, int, NULL, 0444);
MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for CS4231 driver.");
module_param_array(dma1, int, NULL, 0444);
MODULE_PARM_DESC(dma1, "DMA1 # for CS4231 driver.");
module_param_array(dma2, int, NULL, 0444);
MODULE_PARM_DESC(dma2, "DMA2 # for CS4231 driver.");

static struct platform_device *devices[SNDRV_CARDS];


static int __init snd_cs4231_probe(struct platform_device *pdev)
{
	int dev = pdev->id;
	struct snd_card *card;
	struct snd_pcm *pcm;
	struct snd_cs4231 *chip;
	int err;

	if (port[dev] == SNDRV_AUTO_PORT) {
		snd_printk(KERN_ERR "specify port\n");
		return -EINVAL;
	}
	if (irq[dev] == SNDRV_AUTO_IRQ) {
		snd_printk(KERN_ERR "specify irq\n");
		return -EINVAL;
	}
	if (dma1[dev] == SNDRV_AUTO_DMA) {
		snd_printk(KERN_ERR "specify dma1\n");
		return -EINVAL;
	}
	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
	if (card == NULL)
		return -ENOMEM;
	if ((err = snd_cs4231_create(card, port[dev], -1,
				     irq[dev],
				     dma1[dev],
				     dma2[dev],
				     CS4231_HW_DETECT,
				     0, &chip)) < 0)
		goto _err;
	card->private_data = chip;

	if ((err = snd_cs4231_pcm(chip, 0, &pcm)) < 0)
		goto _err;

	strcpy(card->driver, "CS4231");
	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 (dma2[dev] >= 0)
		sprintf(card->longname + strlen(card->longname), "&%d", dma2[dev]);

	if ((err = snd_cs4231_mixer(chip)) < 0)
		goto _err;
	if ((err = snd_cs4231_timer(chip, 0, NULL)) < 0)
		goto _err;

	if (mpu_port[dev] > 0 && mpu_port[dev] != SNDRV_AUTO_PORT) {
		if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
			mpu_irq[dev] = -1;
		if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
					mpu_port[dev], 0,
					mpu_irq[dev],
					mpu_irq[dev] >= 0 ? SA_INTERRUPT : 0,
					NULL) < 0)
			printk(KERN_WARNING "cs4231: MPU401 not detected\n");
	}

	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_cs4231_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_cs4231_suspend(struct platform_device *dev, pm_message_t state)
{
	struct snd_card *card;
	struct snd_cs4231 *chip;
	card = platform_get_drvdata(dev);
	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
	chip = card->private_data;
	chip->suspend(chip);
	return 0;
}

static int snd_cs4231_resume(struct platform_device *dev)
{
	struct snd_card *card;
	struct snd_cs4231 *chip;
	card = platform_get_drvdata(dev);
	chip = card->private_data;
	chip->resume(chip);
	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
	return 0;
}
#endif

#define SND_CS4231_DRIVER	"snd_cs4231"

static struct platform_driver snd_cs4231_driver = {
	.probe		= snd_cs4231_probe,
	.remove		= __devexit_p(snd_cs4231_remove),
#ifdef CONFIG_PM
	.suspend	= snd_cs4231_suspend,
	.resume		= snd_cs4231_resume,
#endif
	.driver		= {
		.name	= SND_CS4231_DRIVER
	},
};

static void __init_or_module snd_cs4231_unregister_all(void)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(devices); ++i)
		platform_device_unregister(devices[i]);
	platform_driver_unregister(&snd_cs4231_driver);
}

static int __init alsa_card_cs4231_init(void)
{
	int i, cards, err;

	err = platform_driver_register(&snd_cs4231_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_CS4231_DRIVER,
							 i, NULL, 0);
		if (IS_ERR(device)) {
			err = PTR_ERR(device);
			goto errout;
		}
		devices[i] = device;
		cards++;
	}
	if (!cards) {
#ifdef MODULE
		printk(KERN_ERR "CS4231 soundcard not found or device busy\n");
#endif
		err = -ENODEV;
		goto errout;
	}
	return 0;

 errout:
	snd_cs4231_unregister_all();
	return err;
}

static void __exit alsa_card_cs4231_exit(void)
{
	snd_cs4231_unregister_all();
}

module_init(alsa_card_cs4231_init)
module_exit(alsa_card_cs4231_exit)