202 lines
5.7 KiB
C
202 lines
5.7 KiB
C
/*
|
|
* Generic driver for CS4231 chips
|
|
* Copyright (c) by Jaroslav Kysela <perex@perex.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 <linux/init.h>
|
|
#include <linux/err.h>
|
|
#include <linux/isa.h>
|
|
#include <linux/time.h>
|
|
#include <linux/wait.h>
|
|
#include <linux/module.h>
|
|
#include <sound/core.h>
|
|
#include <sound/wss.h>
|
|
#include <sound/mpu401.h>
|
|
#include <sound/initval.h>
|
|
|
|
#define CRD_NAME "Generic CS4231"
|
|
#define DEV_NAME "cs4231"
|
|
|
|
MODULE_DESCRIPTION(CRD_NAME);
|
|
MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
|
|
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 bool 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 " CRD_NAME " soundcard.");
|
|
module_param_array(id, charp, NULL, 0444);
|
|
MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
|
|
module_param_array(enable, bool, NULL, 0444);
|
|
MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
|
|
module_param_array(port, long, NULL, 0444);
|
|
MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
|
|
module_param_array(mpu_port, long, NULL, 0444);
|
|
MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
|
|
module_param_array(irq, int, NULL, 0444);
|
|
MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
|
|
module_param_array(mpu_irq, int, NULL, 0444);
|
|
MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
|
|
module_param_array(dma1, int, NULL, 0444);
|
|
MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
|
|
module_param_array(dma2, int, NULL, 0444);
|
|
MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
|
|
|
|
static int snd_cs4231_match(struct device *dev, unsigned int n)
|
|
{
|
|
if (!enable[n])
|
|
return 0;
|
|
|
|
if (port[n] == SNDRV_AUTO_PORT) {
|
|
dev_err(dev, "please specify port\n");
|
|
return 0;
|
|
}
|
|
if (irq[n] == SNDRV_AUTO_IRQ) {
|
|
dev_err(dev, "please specify irq\n");
|
|
return 0;
|
|
}
|
|
if (dma1[n] == SNDRV_AUTO_DMA) {
|
|
dev_err(dev, "please specify dma1\n");
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int snd_cs4231_probe(struct device *dev, unsigned int n)
|
|
{
|
|
struct snd_card *card;
|
|
struct snd_wss *chip;
|
|
struct snd_pcm *pcm;
|
|
int error;
|
|
|
|
error = snd_card_new(dev, index[n], id[n], THIS_MODULE, 0, &card);
|
|
if (error < 0)
|
|
return error;
|
|
|
|
error = snd_wss_create(card, port[n], -1, irq[n], dma1[n], dma2[n],
|
|
WSS_HW_DETECT, 0, &chip);
|
|
if (error < 0)
|
|
goto out;
|
|
|
|
card->private_data = chip;
|
|
|
|
error = snd_wss_pcm(chip, 0, &pcm);
|
|
if (error < 0)
|
|
goto out;
|
|
|
|
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[n], dma1[n]);
|
|
if (dma2[n] >= 0)
|
|
sprintf(card->longname + strlen(card->longname), "&%d", dma2[n]);
|
|
|
|
error = snd_wss_mixer(chip);
|
|
if (error < 0)
|
|
goto out;
|
|
|
|
error = snd_wss_timer(chip, 0, NULL);
|
|
if (error < 0)
|
|
goto out;
|
|
|
|
if (mpu_port[n] > 0 && mpu_port[n] != SNDRV_AUTO_PORT) {
|
|
if (mpu_irq[n] == SNDRV_AUTO_IRQ)
|
|
mpu_irq[n] = -1;
|
|
if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
|
|
mpu_port[n], 0, mpu_irq[n],
|
|
NULL) < 0)
|
|
dev_warn(dev, "MPU401 not detected\n");
|
|
}
|
|
|
|
error = snd_card_register(card);
|
|
if (error < 0)
|
|
goto out;
|
|
|
|
dev_set_drvdata(dev, card);
|
|
return 0;
|
|
|
|
out: snd_card_free(card);
|
|
return error;
|
|
}
|
|
|
|
static int snd_cs4231_remove(struct device *dev, unsigned int n)
|
|
{
|
|
snd_card_free(dev_get_drvdata(dev));
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static int snd_cs4231_suspend(struct device *dev, unsigned int n, pm_message_t state)
|
|
{
|
|
struct snd_card *card = dev_get_drvdata(dev);
|
|
struct snd_wss *chip = card->private_data;
|
|
|
|
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
|
|
chip->suspend(chip);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_cs4231_resume(struct device *dev, unsigned int n)
|
|
{
|
|
struct snd_card *card = dev_get_drvdata(dev);
|
|
struct snd_wss *chip = card->private_data;
|
|
|
|
chip->resume(chip);
|
|
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static struct isa_driver snd_cs4231_driver = {
|
|
.match = snd_cs4231_match,
|
|
.probe = snd_cs4231_probe,
|
|
.remove = snd_cs4231_remove,
|
|
#ifdef CONFIG_PM
|
|
.suspend = snd_cs4231_suspend,
|
|
.resume = snd_cs4231_resume,
|
|
#endif
|
|
.driver = {
|
|
.name = DEV_NAME
|
|
}
|
|
};
|
|
|
|
static int __init alsa_card_cs4231_init(void)
|
|
{
|
|
return isa_register_driver(&snd_cs4231_driver, SNDRV_CARDS);
|
|
}
|
|
|
|
static void __exit alsa_card_cs4231_exit(void)
|
|
{
|
|
isa_unregister_driver(&snd_cs4231_driver);
|
|
}
|
|
|
|
module_init(alsa_card_cs4231_init);
|
|
module_exit(alsa_card_cs4231_exit);
|