205 lines
6.0 KiB
C
205 lines
6.0 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@suse.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 <sound/driver.h>
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#include <asm/dma.h>
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#include <linux/init.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/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_AUTO_PROBE
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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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MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
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MODULE_DESCRIPTION("ESS ESx688 AudioDrive");
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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 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 ESx688 soundcard.");
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module_param_array(id, charp, NULL, 0444);
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MODULE_PARM_DESC(id, "ID string for ESx688 soundcard.");
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module_param_array(enable, bool, NULL, 0444);
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MODULE_PARM_DESC(enable, "Enable ESx688 soundcard.");
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module_param_array(port, long, NULL, 0444);
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MODULE_PARM_DESC(port, "Port # for ESx688 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 ESx688 driver.");
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module_param_array(irq, int, NULL, 0444);
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MODULE_PARM_DESC(irq, "IRQ # for ESx688 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 ESx688 driver.");
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module_param_array(dma8, int, NULL, 0444);
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MODULE_PARM_DESC(dma8, "8-bit DMA # for ESx688 driver.");
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static snd_card_t *snd_audiodrive_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
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static int __init snd_audiodrive_probe(int dev)
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{
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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 xirq, xdma, xmpu_irq;
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snd_card_t *card;
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es1688_t *chip;
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opl3_t *opl3;
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snd_pcm_t *pcm;
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int err;
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card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
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if (card == NULL)
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return -ENOMEM;
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xirq = irq[dev];
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if (xirq == SNDRV_AUTO_IRQ) {
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if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
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snd_card_free(card);
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snd_printk("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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xmpu_irq = mpu_irq[dev];
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xdma = dma8[dev];
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if (xdma == SNDRV_AUTO_DMA) {
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if ((xdma = snd_legacy_find_free_dma(possible_dmas)) < 0) {
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snd_card_free(card);
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snd_printk("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 ((err = snd_es1688_create(card, port[dev], mpu_port[dev],
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xirq, xmpu_irq, xdma,
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ES1688_HW_AUTO, &chip)) < 0) {
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snd_card_free(card);
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return err;
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}
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if ((err = snd_es1688_pcm(chip, 0, &pcm)) < 0) {
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snd_card_free(card);
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return err;
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}
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if ((err = snd_es1688_mixer(chip)) < 0) {
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snd_card_free(card);
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return err;
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}
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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, chip->port, xirq, xdma);
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if ((snd_opl3_create(card, chip->port, chip->port + 2, OPL3_HW_OPL3, 0, &opl3)) < 0) {
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printk(KERN_ERR "es1688: opl3 not detected at 0x%lx\n", chip->port);
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} else {
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if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
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snd_card_free(card);
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return err;
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}
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}
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if (xmpu_irq >= 0 && xmpu_irq != SNDRV_AUTO_IRQ && chip->mpu_port > 0) {
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if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_ES1688,
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chip->mpu_port, 0,
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xmpu_irq,
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SA_INTERRUPT,
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NULL)) < 0) {
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snd_card_free(card);
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return err;
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}
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}
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if ((err = snd_card_register(card)) < 0) {
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snd_card_free(card);
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return err;
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}
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snd_audiodrive_cards[dev] = card;
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return 0;
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}
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static int __init snd_audiodrive_legacy_auto_probe(unsigned long xport)
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{
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static int dev;
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int res;
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for ( ; dev < SNDRV_CARDS; dev++) {
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if (!enable[dev] || port[dev] != SNDRV_AUTO_PORT)
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continue;
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port[dev] = xport;
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res = snd_audiodrive_probe(dev);
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if (res < 0)
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port[dev] = SNDRV_AUTO_PORT;
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return res;
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}
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return -ENODEV;
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}
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static int __init alsa_card_es1688_init(void)
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{
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static unsigned long possible_ports[] = {0x220, 0x240, 0x260, -1};
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int dev, cards = 0, i;
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for (dev = cards = 0; dev < SNDRV_CARDS && enable[dev]; dev++) {
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if (port[dev] == SNDRV_AUTO_PORT)
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continue;
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if (snd_audiodrive_probe(dev) >= 0)
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cards++;
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}
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i = snd_legacy_auto_probe(possible_ports, snd_audiodrive_legacy_auto_probe);
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if (i > 0)
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cards += i;
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if (!cards) {
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#ifdef MODULE
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printk(KERN_ERR "ESS AudioDrive ES1688 soundcard not found or device busy\n");
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#endif
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return -ENODEV;
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}
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return 0;
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}
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static void __exit alsa_card_es1688_exit(void)
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{
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int idx;
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for (idx = 0; idx < SNDRV_CARDS; idx++)
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snd_card_free(snd_audiodrive_cards[idx]);
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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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