forked from Minki/linux
207 lines
6.0 KiB
C
207 lines
6.0 KiB
C
/*
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* Generic driver for CS4231 chips
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* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
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* Originally the CS4232/CS4232A driver, modified for use on CS4231 by
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* Tugrul Galatali <galatalt@stuy.edu>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <sound/driver.h>
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#include <linux/init.h>
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#include <linux/err.h>
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#include <linux/isa.h>
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#include <linux/time.h>
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#include <linux/wait.h>
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#include <linux/moduleparam.h>
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#include <sound/core.h>
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#include <sound/cs4231.h>
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#include <sound/mpu401.h>
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#include <sound/initval.h>
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#define CRD_NAME "Generic CS4231"
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#define DEV_NAME "cs4231"
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MODULE_DESCRIPTION(CRD_NAME);
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MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
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MODULE_LICENSE("GPL");
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MODULE_SUPPORTED_DEVICE("{{Crystal Semiconductors,CS4231}}");
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
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static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
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static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
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static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
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static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */
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static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 9,11,12,15 */
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static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
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static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */
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module_param_array(index, int, NULL, 0444);
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MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
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module_param_array(id, charp, NULL, 0444);
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MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
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module_param_array(enable, bool, NULL, 0444);
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MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
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module_param_array(port, long, NULL, 0444);
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MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
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module_param_array(mpu_port, long, NULL, 0444);
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MODULE_PARM_DESC(mpu_port, "MPU-401 port # for " CRD_NAME " driver.");
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module_param_array(irq, int, NULL, 0444);
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MODULE_PARM_DESC(irq, "IRQ # for " CRD_NAME " driver.");
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module_param_array(mpu_irq, int, NULL, 0444);
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MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver.");
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module_param_array(dma1, int, NULL, 0444);
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MODULE_PARM_DESC(dma1, "DMA1 # for " CRD_NAME " driver.");
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module_param_array(dma2, int, NULL, 0444);
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MODULE_PARM_DESC(dma2, "DMA2 # for " CRD_NAME " driver.");
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static int __devinit snd_cs4231_match(struct device *dev, unsigned int n)
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{
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if (!enable[n])
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return 0;
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if (port[n] == SNDRV_AUTO_PORT) {
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snd_printk(KERN_ERR "%s: please specify port\n", dev->bus_id);
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return 0;
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}
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if (irq[n] == SNDRV_AUTO_IRQ) {
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snd_printk(KERN_ERR "%s: please specify irq\n", dev->bus_id);
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return 0;
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}
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if (dma1[n] == SNDRV_AUTO_DMA) {
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snd_printk(KERN_ERR "%s: please specify dma1\n", dev->bus_id);
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return 0;
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}
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return 1;
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}
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static int __devinit snd_cs4231_probe(struct device *dev, unsigned int n)
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{
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struct snd_card *card;
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struct snd_cs4231 *chip;
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struct snd_pcm *pcm;
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int error;
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card = snd_card_new(index[n], id[n], THIS_MODULE, 0);
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if (!card)
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return -EINVAL;
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error = snd_cs4231_create(card, port[n], -1, irq[n], dma1[n], dma2[n],
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CS4231_HW_DETECT, 0, &chip);
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if (error < 0)
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goto out;
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card->private_data = chip;
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error = snd_cs4231_pcm(chip, 0, &pcm);
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if (error < 0)
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goto out;
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strcpy(card->driver, "CS4231");
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strcpy(card->shortname, pcm->name);
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sprintf(card->longname, "%s at 0x%lx, irq %d, dma %d",
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pcm->name, chip->port, irq[n], dma1[n]);
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if (dma2[n] >= 0)
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sprintf(card->longname + strlen(card->longname), "&%d", dma2[n]);
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error = snd_cs4231_mixer(chip);
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if (error < 0)
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goto out;
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error = snd_cs4231_timer(chip, 0, NULL);
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if (error < 0)
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goto out;
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if (mpu_port[n] > 0 && mpu_port[n] != SNDRV_AUTO_PORT) {
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if (mpu_irq[n] == SNDRV_AUTO_IRQ)
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mpu_irq[n] = -1;
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if (snd_mpu401_uart_new(card, 0, MPU401_HW_CS4232,
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mpu_port[n], 0, mpu_irq[n],
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mpu_irq[n] >= 0 ? IRQF_DISABLED : 0,
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NULL) < 0)
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printk(KERN_WARNING "%s: MPU401 not detected\n", dev->bus_id);
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}
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snd_card_set_dev(card, dev);
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error = snd_card_register(card);
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if (error < 0)
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goto out;
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dev_set_drvdata(dev, card);
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return 0;
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out: snd_card_free(card);
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return error;
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}
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static int __devexit snd_cs4231_remove(struct device *dev, unsigned int n)
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{
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snd_card_free(dev_get_drvdata(dev));
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dev_set_drvdata(dev, NULL);
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return 0;
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}
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#ifdef CONFIG_PM
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static int snd_cs4231_suspend(struct device *dev, unsigned int n, pm_message_t state)
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{
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struct snd_card *card = dev_get_drvdata(dev);
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struct snd_cs4231 *chip = card->private_data;
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snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
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chip->suspend(chip);
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return 0;
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}
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static int snd_cs4231_resume(struct device *dev, unsigned int n)
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{
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struct snd_card *card = dev_get_drvdata(dev);
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struct snd_cs4231 *chip = card->private_data;
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chip->resume(chip);
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snd_power_change_state(card, SNDRV_CTL_POWER_D0);
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return 0;
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}
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#endif
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static struct isa_driver snd_cs4231_driver = {
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.match = snd_cs4231_match,
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.probe = snd_cs4231_probe,
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.remove = __devexit_p(snd_cs4231_remove),
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#ifdef CONFIG_PM
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.suspend = snd_cs4231_suspend,
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.resume = snd_cs4231_resume,
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#endif
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.driver = {
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.name = DEV_NAME
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}
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};
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static int __init alsa_card_cs4231_init(void)
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{
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return isa_register_driver(&snd_cs4231_driver, SNDRV_CARDS);
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}
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static void __exit alsa_card_cs4231_exit(void)
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{
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isa_unregister_driver(&snd_cs4231_driver);
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}
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module_init(alsa_card_cs4231_init);
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module_exit(alsa_card_cs4231_exit);
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