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@suse.cz>
5 *  Based on card-4232.c by Jaroslav Kysela <perex@suse.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
38MODULE_DESCRIPTION(CRD_NAME);
39MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@suse.cz>");
40MODULE_LICENSE("GPL");
41MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1848},"
42	        "{Analog Devices,AD1847},"
43		"{Crystal Semiconductors,CS4248}}");
44
45static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
46static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
47static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;	/* Enable this card */
48static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;	/* PnP setup */
49static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;	/* 5,7,9,11,12,15 */
50static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;	/* 0,1,3,5,6,7 */
51static int thinkpad[SNDRV_CARDS];			/* Thinkpad special case */
52
53module_param_array(index, int, NULL, 0444);
54MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
55module_param_array(id, charp, NULL, 0444);
56MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
57module_param_array(enable, bool, NULL, 0444);
58MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
59module_param_array(port, long, NULL, 0444);
60MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
61module_param_array(irq, int, NULL, 0444);
62MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
63module_param_array(dma1, int, NULL, 0444);
64MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
65module_param_array(thinkpad, bool, NULL, 0444);
66MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series.");
67
68static 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
88static 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
131out:	snd_card_free(card);
132	return error;
133}
134
135static 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
143static 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
153static 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
164static 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
177static int __init alsa_card_ad1848_init(void)
178{
179	return isa_register_driver(&snd_ad1848_driver, SNDRV_CARDS);
180}
181
182static void __exit alsa_card_ad1848_exit(void)
183{
184	isa_unregister_driver(&snd_ad1848_driver);
185}
186
187module_init(alsa_card_ad1848_init);
188module_exit(alsa_card_ad1848_exit);
189