diff options
Diffstat (limited to 'sound/isa/ad1848/ad1848.c')
| -rw-r--r-- | sound/isa/ad1848/ad1848.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/sound/isa/ad1848/ad1848.c b/sound/isa/ad1848/ad1848.c new file mode 100644 index 0000000..8c39934 --- /dev/null +++ b/sound/isa/ad1848/ad1848.c @@ -0,0 +1,151 @@ +/* + * 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 <linux/moduleparam.h> +#include <sound/core.h> +#include <sound/ad1848.h> +#include <sound/initval.h> + +MODULE_AUTHOR("Tugrul Galatali <galatalt@stuy.edu>, Jaroslav Kysela <perex@suse.cz>"); +MODULE_DESCRIPTION("AD1848/AD1847/CS4248"); +MODULE_LICENSE("GPL"); +MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1848}," + "{Analog Devices,AD1847}," + "{Crystal Semiconductors,CS4248}}"); + +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 int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */ +static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ +static int thinkpad[SNDRV_CARDS]; /* Thinkpad special case */ + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for AD1848 soundcard."); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for AD1848 soundcard."); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable AD1848 soundcard."); +module_param_array(port, long, NULL, 0444); +MODULE_PARM_DESC(port, "Port # for AD1848 driver."); +module_param_array(irq, int, NULL, 0444); +MODULE_PARM_DESC(irq, "IRQ # for AD1848 driver."); +module_param_array(dma1, int, NULL, 0444); +MODULE_PARM_DESC(dma1, "DMA1 # for AD1848 driver."); +module_param_array(thinkpad, bool, NULL, 0444); +MODULE_PARM_DESC(thinkpad, "Enable only for the onboard CS4248 of IBM Thinkpad 360/750/755 series."); + +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 (port[dev] == SNDRV_AUTO_PORT) { + snd_printk(KERN_ERR "ad1848: specify port\n"); + return -EINVAL; + } + if (irq[dev] == SNDRV_AUTO_IRQ) { + snd_printk(KERN_ERR "ad1848: specify irq\n"); + return -EINVAL; + } + if (dma1[dev] == SNDRV_AUTO_DMA) { + snd_printk(KERN_ERR "ad1848: specify dma1\n"); + return -EINVAL; + } + + card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); + if (card == NULL) + return -ENOMEM; + + if ((err = snd_ad1848_create(card, port[dev], + irq[dev], + dma1[dev], + thinkpad[dev] ? AD1848_HW_THINKPAD : 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, irq[dev], dma1[dev]); + + if (thinkpad[dev]) { + strcat(card->longname, " [Thinkpad]"); + } + + 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 && 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) |
