diff options
Diffstat (limited to 'sound/isa/cs423x/cs4231.c')
| -rw-r--r-- | sound/isa/cs423x/cs4231.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/sound/isa/cs423x/cs4231.c b/sound/isa/cs423x/cs4231.c new file mode 100644 index 00000000000..7640837659e --- /dev/null +++ b/sound/isa/cs423x/cs4231.c @@ -0,0 +1,169 @@ +/* + * 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/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 snd_card_t *snd_cs4231_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; + + +static int __init snd_card_cs4231_probe(int dev) +{ + snd_card_t *card; + struct snd_card_cs4231 *acard; + snd_pcm_t *pcm = NULL; + cs4231_t *chip; + int err; + + if (port[dev] == SNDRV_AUTO_PORT) { + snd_printk("specify port\n"); + return -EINVAL; + } + if (irq[dev] == SNDRV_AUTO_IRQ) { + snd_printk("specify irq\n"); + return -EINVAL; + } + if (dma1[dev] == SNDRV_AUTO_DMA) { + snd_printk("specify dma1\n"); + return -EINVAL; + } + card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); + if (card == NULL) + return -ENOMEM; + acard = (struct snd_card_cs4231 *)card->private_data; + if ((err = snd_cs4231_create(card, port[dev], -1, + irq[dev], + dma1[dev], + dma2[dev], + CS4231_HW_DETECT, + 0, &chip)) < 0) { + snd_card_free(card); + return err; + } + + if ((err = snd_cs4231_pcm(chip, 0, &pcm)) < 0) { + snd_card_free(card); + return 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) { + snd_card_free(card); + return err; + } + if ((err = snd_cs4231_timer(chip, 0, NULL)) < 0) { + snd_card_free(card); + return 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_ERR "cs4231: MPU401 not detected\n"); + } + if ((err = snd_card_register(card)) < 0) { + snd_card_free(card); + return err; + } + snd_cs4231_cards[dev] = card; + return 0; +} + +static int __init alsa_card_cs4231_init(void) +{ + int dev, cards; + + for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) { + if (snd_card_cs4231_probe(dev) >= 0) + cards++; + } + if (!cards) { +#ifdef MODULE + printk(KERN_ERR "CS4231 soundcard not found or device busy\n"); +#endif + return -ENODEV; + } + return 0; +} + +static void __exit alsa_card_cs4231_exit(void) +{ + int idx; + + for (idx = 0; idx < SNDRV_CARDS; idx++) + snd_card_free(snd_cs4231_cards[idx]); +} + +module_init(alsa_card_cs4231_init) +module_exit(alsa_card_cs4231_exit) |