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* 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/time.h>
#include <linux/wait.h>
#include <sound/core.h>
#include <sound/ad1848.h>
#define SNDRV_GET_ID
#include <sound/initval.h>
#define chip_t ad1848_t
MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@suse.cz>");
MODULE_DESCRIPTION("AD1848/AD1847/CS4248");
MODULE_LICENSE("GPL");
MODULE_CLASSES("{sound}");
MODULE_DEVICES("{{Analog Devices,AD1848},"
"{Analog Devices,AD1847},"
"{Crystal Semiconductors,CS4248}}");
static int snd_index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *snd_id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static int snd_enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
static long snd_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
static int snd_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */
static int snd_dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
MODULE_PARM(snd_index, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(snd_index, "Index value for AD1848 soundcard.");
MODULE_PARM_SYNTAX(snd_index, SNDRV_INDEX_DESC);
MODULE_PARM(snd_id, "1-" __MODULE_STRING(SNDRV_CARDS) "s");
MODULE_PARM_DESC(snd_id, "ID string for AD1848 soundcard.");
MODULE_PARM_SYNTAX(snd_id, SNDRV_ID_DESC);
MODULE_PARM(snd_enable, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(snd_enable, "Enable AD1848 soundcard.");
MODULE_PARM_SYNTAX(snd_enable, SNDRV_ENABLE_DESC);
MODULE_PARM(snd_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l");
MODULE_PARM_DESC(snd_port, "Port # for AD1848 driver.");
MODULE_PARM_SYNTAX(snd_port, SNDRV_PORT12_DESC);
MODULE_PARM(snd_irq, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(snd_irq, "IRQ # for AD1848 driver.");
MODULE_PARM_SYNTAX(snd_irq, SNDRV_IRQ_DESC);
MODULE_PARM(snd_dma1, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(snd_dma1, "DMA1 # for AD1848 driver.");
MODULE_PARM_SYNTAX(snd_dma1, SNDRV_DMA_DESC);
static snd_card_t *snd_ad1848_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
static int __init snd_card_ad1848_probe(int dev)
{
snd_card_t *card;
ad1848_t *chip;
snd_pcm_t *pcm;
int err;
if (snd_port[dev] == SNDRV_AUTO_PORT) {
snd_printk("specify snd_port\n");
return -EINVAL;
}
if (snd_irq[dev] == SNDRV_AUTO_IRQ) {
snd_printk("specify snd_irq\n");
return -EINVAL;
}
if (snd_dma1[dev] == SNDRV_AUTO_DMA) {
snd_printk("specify snd_dma1\n");
return -EINVAL;
}
card = snd_card_new(snd_index[dev], snd_id[dev], THIS_MODULE, 0);
if (card == NULL)
return -ENOMEM;
if ((err = snd_ad1848_create(card, snd_port[dev],
snd_irq[dev],
snd_dma1[dev],
AD1848_HW_DETECT,
&chip)) < 0) {
snd_card_free(card);
return err;
}
if ((err = snd_ad1848_pcm(chip, 0, &pcm)) < 0) {
snd_card_free(card);
return err;
}
if ((err = snd_ad1848_mixer(chip)) < 0) {
snd_card_free(card);
return 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, snd_irq[dev], snd_dma1[dev]);
if ((err = snd_card_register(card)) < 0) {
snd_card_free(card);
return err;
}
snd_ad1848_cards[dev] = card;
return 0;
}
static int __init alsa_card_ad1848_init(void)
{
int dev, cards;
for (dev = cards = 0; dev < SNDRV_CARDS && snd_enable[dev]; dev++)
if (snd_card_ad1848_probe(dev) >= 0)
cards++;
if (!cards) {
#ifdef MODULE
printk(KERN_ERR "AD1848 soundcard not found or device busy\n");
#endif
return -ENODEV;
}
return 0;
}
static void __exit alsa_card_ad1848_exit(void)
{
int idx;
for (idx = 0; idx < SNDRV_CARDS; idx++)
snd_card_free(snd_ad1848_cards[idx]);
}
module_init(alsa_card_ad1848_init)
module_exit(alsa_card_ad1848_exit)
#ifndef MODULE
/* format is: snd-ad1848=snd_enable,snd_index,snd_id,snd_port,
snd_irq,snd_dma1 */
static int __init alsa_card_ad1848_setup(char *str)
{
static unsigned __initdata nr_dev = 0;
if (nr_dev >= SNDRV_CARDS)
return 0;
(void)(get_option(&str,&snd_enable[nr_dev]) == 2 &&
get_option(&str,&snd_index[nr_dev]) == 2 &&
get_id(&str,&snd_id[nr_dev]) == 2 &&
get_option(&str,(int *)&snd_port[nr_dev]) == 2 &&
get_option(&str,&snd_irq[nr_dev]) == 2 &&
get_option(&str,&snd_dma1[nr_dev]) == 2);
nr_dev++;
return 1;
}
__setup("snd-ad1848=", alsa_card_ad1848_setup);
#endif /* ifndef MODULE */
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