249 строки
6.5 KiB
C
249 строки
6.5 KiB
C
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/*
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card-es968.c - driver for ESS AudioDrive ES968 based soundcards.
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Copyright (C) 1999 by Massimo Piccioni <dafastidio@libero.it>
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Thanks to Pierfrancesco 'qM2' Passerini.
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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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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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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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#include <linux/init.h>
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#include <linux/time.h>
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#include <linux/pnp.h>
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#include <linux/moduleparam.h>
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#include <sound/core.h>
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#include <sound/initval.h>
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#include <sound/sb.h>
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#define PFX "es968: "
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MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
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MODULE_DESCRIPTION("ESS AudioDrive ES968");
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MODULE_LICENSE("GPL");
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MODULE_SUPPORTED_DEVICE("{{ESS,AudioDrive ES968}}");
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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_ISAPNP; /* Enable this card */
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static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
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static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* Pnp setup */
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static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* PnP setup */
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module_param_array(index, int, NULL, 0444);
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MODULE_PARM_DESC(index, "Index value for es968 based soundcard.");
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module_param_array(id, charp, NULL, 0444);
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MODULE_PARM_DESC(id, "ID string for es968 based soundcard.");
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module_param_array(enable, bool, NULL, 0444);
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MODULE_PARM_DESC(enable, "Enable es968 based soundcard.");
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struct snd_card_es968 {
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struct pnp_dev *dev;
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struct snd_sb *chip;
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};
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static struct pnp_card_device_id snd_es968_pnpids[] = {
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{ .id = "ESS0968", .devs = { { "@@@0968" }, } },
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{ .id = "", } /* end */
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};
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MODULE_DEVICE_TABLE(pnp_card, snd_es968_pnpids);
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#define DRIVER_NAME "snd-card-es968"
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static irqreturn_t snd_card_es968_interrupt(int irq, void *dev_id)
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{
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struct snd_sb *chip = dev_id;
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if (chip->open & SB_OPEN_PCM) {
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return snd_sb8dsp_interrupt(chip);
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} else {
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return snd_sb8dsp_midi_interrupt(chip);
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}
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}
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static int __devinit snd_card_es968_pnp(int dev, struct snd_card_es968 *acard,
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struct pnp_card_link *card,
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const struct pnp_card_device_id *id)
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{
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struct pnp_dev *pdev;
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int err;
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acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
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if (acard->dev == NULL)
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return -ENODEV;
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pdev = acard->dev;
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err = pnp_activate_dev(pdev);
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if (err < 0) {
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snd_printk(KERN_ERR PFX "AUDIO pnp configure failure\n");
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return err;
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}
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port[dev] = pnp_port_start(pdev, 0);
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dma8[dev] = pnp_dma(pdev, 1);
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irq[dev] = pnp_irq(pdev, 0);
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return 0;
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}
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static int __devinit snd_card_es968_probe(int dev,
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struct pnp_card_link *pcard,
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const struct pnp_card_device_id *pid)
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{
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int error;
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struct snd_sb *chip;
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struct snd_card *card;
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struct snd_card_es968 *acard;
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error = snd_card_create(index[dev], id[dev], THIS_MODULE,
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sizeof(struct snd_card_es968), &card);
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if (error < 0)
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return error;
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acard = card->private_data;
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if ((error = snd_card_es968_pnp(dev, acard, pcard, pid))) {
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snd_card_free(card);
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return error;
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}
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snd_card_set_dev(card, &pcard->card->dev);
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if ((error = snd_sbdsp_create(card, port[dev],
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irq[dev],
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snd_card_es968_interrupt,
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dma8[dev],
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-1,
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SB_HW_AUTO, &chip)) < 0) {
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snd_card_free(card);
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return error;
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}
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acard->chip = chip;
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if ((error = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) {
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snd_card_free(card);
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return error;
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}
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if ((error = snd_sbmixer_new(chip)) < 0) {
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snd_card_free(card);
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return error;
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}
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if ((error = snd_sb8dsp_midi(chip, 0, NULL)) < 0) {
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snd_card_free(card);
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return error;
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}
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strcpy(card->driver, "ES968");
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strcpy(card->shortname, "ESS ES968");
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sprintf(card->longname, "%s soundcard, %s at 0x%lx, irq %d, dma %d",
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card->shortname, chip->name, chip->port, irq[dev], dma8[dev]);
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if ((error = snd_card_register(card)) < 0) {
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snd_card_free(card);
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return error;
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}
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pnp_set_card_drvdata(pcard, card);
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return 0;
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}
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static unsigned int __devinitdata es968_devices;
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static int __devinit snd_es968_pnp_detect(struct pnp_card_link *card,
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const struct pnp_card_device_id *id)
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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])
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continue;
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res = snd_card_es968_probe(dev, card, id);
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if (res < 0)
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return res;
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dev++;
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es968_devices++;
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return 0;
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}
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return -ENODEV;
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}
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static void __devexit snd_es968_pnp_remove(struct pnp_card_link * pcard)
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{
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snd_card_free(pnp_get_card_drvdata(pcard));
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pnp_set_card_drvdata(pcard, NULL);
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}
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#ifdef CONFIG_PM
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static int snd_es968_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
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{
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struct snd_card *card = pnp_get_card_drvdata(pcard);
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struct snd_card_es968 *acard = card->private_data;
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struct snd_sb *chip = acard->chip;
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snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
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snd_pcm_suspend_all(chip->pcm);
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snd_sbmixer_suspend(chip);
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return 0;
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}
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static int snd_es968_pnp_resume(struct pnp_card_link *pcard)
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{
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struct snd_card *card = pnp_get_card_drvdata(pcard);
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struct snd_card_es968 *acard = card->private_data;
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struct snd_sb *chip = acard->chip;
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snd_sbdsp_reset(chip);
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snd_sbmixer_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 pnp_card_driver es968_pnpc_driver = {
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.flags = PNP_DRIVER_RES_DISABLE,
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.name = "es968",
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.id_table = snd_es968_pnpids,
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.probe = snd_es968_pnp_detect,
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.remove = __devexit_p(snd_es968_pnp_remove),
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#ifdef CONFIG_PM
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.suspend = snd_es968_pnp_suspend,
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.resume = snd_es968_pnp_resume,
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#endif
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};
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static int __init alsa_card_es968_init(void)
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{
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int err = pnp_register_card_driver(&es968_pnpc_driver);
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if (err)
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return err;
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if (!es968_devices) {
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pnp_unregister_card_driver(&es968_pnpc_driver);
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#ifdef MODULE
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snd_printk(KERN_ERR "no ES968 based soundcards found\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_es968_exit(void)
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{
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pnp_unregister_card_driver(&es968_pnpc_driver);
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}
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module_init(alsa_card_es968_init)
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module_exit(alsa_card_es968_exit)
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