218 lines
6.4 KiB
C
218 lines
6.4 KiB
C
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/*
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* Driver for generic ESS AudioDrive ESx688 soundcards
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* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
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*
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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 <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 <asm/dma.h>
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#include <sound/core.h>
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#include <sound/es1688.h>
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#include <sound/mpu401.h>
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#include <sound/opl3.h>
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#define SNDRV_LEGACY_FIND_FREE_IRQ
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#define SNDRV_LEGACY_FIND_FREE_DMA
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#include <sound/initval.h>
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#define CRD_NAME "Generic ESS ES1688/ES688 AudioDrive"
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#define DEV_NAME "es1688"
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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("{{ESS,ES688 PnP AudioDrive,pnp:ESS0100},"
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"{ESS,ES1688 PnP AudioDrive,pnp:ESS0102},"
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"{ESS,ES688 AudioDrive,pnp:ESS6881},"
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"{ESS,ES1688 AudioDrive,pnp:ESS1681}}");
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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; /* 0x220,0x240,0x260 */
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static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* Usually 0x388 */
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static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
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static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */
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static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,10 */
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static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3 */
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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_param_array(fm_port, long, NULL, 0444);
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MODULE_PARM_DESC(fm_port, "FM port # for ES1688 driver.");
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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(dma8, int, NULL, 0444);
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MODULE_PARM_DESC(dma8, "8-bit DMA # for " CRD_NAME " driver.");
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static int __devinit snd_es1688_match(struct device *dev, unsigned int n)
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{
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return enable[n];
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}
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static int __devinit snd_es1688_legacy_create(struct snd_card *card,
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struct device *dev, unsigned int n, struct snd_es1688 **rchip)
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{
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static long possible_ports[] = {0x220, 0x240, 0x260};
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static int possible_irqs[] = {5, 9, 10, 7, -1};
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static int possible_dmas[] = {1, 3, 0, -1};
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int i, error;
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if (irq[n] == SNDRV_AUTO_IRQ) {
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irq[n] = snd_legacy_find_free_irq(possible_irqs);
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if (irq[n] < 0) {
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dev_err(dev, "unable to find a free IRQ\n");
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return -EBUSY;
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}
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}
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if (dma8[n] == SNDRV_AUTO_DMA) {
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dma8[n] = snd_legacy_find_free_dma(possible_dmas);
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if (dma8[n] < 0) {
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dev_err(dev, "unable to find a free DMA\n");
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return -EBUSY;
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}
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}
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if (port[n] != SNDRV_AUTO_PORT)
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return snd_es1688_create(card, port[n], mpu_port[n], irq[n],
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mpu_irq[n], dma8[n], ES1688_HW_AUTO, rchip);
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i = 0;
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do {
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port[n] = possible_ports[i];
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error = snd_es1688_create(card, port[n], mpu_port[n], irq[n],
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mpu_irq[n], dma8[n], ES1688_HW_AUTO, rchip);
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} while (error < 0 && ++i < ARRAY_SIZE(possible_ports));
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return error;
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}
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static int __devinit snd_es1688_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_es1688 *chip;
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struct snd_opl3 *opl3;
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struct snd_pcm *pcm;
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int error;
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error = snd_card_create(index[n], id[n], THIS_MODULE, 0, &card);
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if (error < 0)
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return error;
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error = snd_es1688_legacy_create(card, dev, n, &chip);
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if (error < 0)
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goto out;
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error = snd_es1688_pcm(chip, 0, &pcm);
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if (error < 0)
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goto out;
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error = snd_es1688_mixer(chip);
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if (error < 0)
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goto out;
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strcpy(card->driver, "ES1688");
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strcpy(card->shortname, pcm->name);
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sprintf(card->longname, "%s at 0x%lx, irq %i, dma %i", pcm->name,
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chip->port, chip->irq, chip->dma8);
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if (fm_port[n] == SNDRV_AUTO_PORT)
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fm_port[n] = port[n]; /* share the same port */
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if (fm_port[n] > 0) {
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if (snd_opl3_create(card, fm_port[n], fm_port[n] + 2,
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OPL3_HW_OPL3, 0, &opl3) < 0)
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dev_warn(dev,
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"opl3 not detected at 0x%lx\n", fm_port[n]);
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else {
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error = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
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if (error < 0)
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goto out;
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}
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}
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if (mpu_irq[n] >= 0 && mpu_irq[n] != SNDRV_AUTO_IRQ &&
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chip->mpu_port > 0) {
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error = snd_mpu401_uart_new(card, 0, MPU401_HW_ES1688,
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chip->mpu_port, 0,
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mpu_irq[n], IRQF_DISABLED, NULL);
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if (error < 0)
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goto out;
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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_es1688_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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static struct isa_driver snd_es1688_driver = {
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.match = snd_es1688_match,
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.probe = snd_es1688_probe,
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.remove = __devexit_p(snd_es1688_remove),
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#if 0 /* FIXME */
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.suspend = snd_es1688_suspend,
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.resume = snd_es1688_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_es1688_init(void)
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{
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return isa_register_driver(&snd_es1688_driver, SNDRV_CARDS);
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}
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static void __exit alsa_card_es1688_exit(void)
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{
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isa_unregister_driver(&snd_es1688_driver);
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}
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module_init(alsa_card_es1688_init);
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module_exit(alsa_card_es1688_exit);
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