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linux_old1/sound/isa/sb/es968.c

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/*
card-es968.c - driver for ESS AudioDrive ES968 based soundcards.
Copyright (C) 1999 by Massimo Piccioni <dafastidio@libero.it>
Thanks to Pierfrancesco 'qM2' Passerini.
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/pnp.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/sb.h>
#define PFX "es968: "
MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
MODULE_DESCRIPTION("ESS AudioDrive ES968");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{ESS,AudioDrive ES968}}");
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_ISAPNP; /* Enable this card */
static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */
static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* Pnp setup */
static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* PnP setup */
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for es968 based soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for es968 based soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable es968 based soundcard.");
module_param_array(port, long, NULL, 0444);
MODULE_PARM_DESC(port, "Port # for es968 driver.");
module_param_array(irq, int, NULL, 0444);
MODULE_PARM_DESC(irq, "IRQ # for es968 driver.");
module_param_array(dma8, int, NULL, 0444);
MODULE_PARM_DESC(dma8, "8-bit DMA # for es968 driver.");
struct snd_card_es968 {
struct pnp_dev *dev;
struct snd_sb *chip;
};
static struct pnp_card_device_id snd_es968_pnpids[] = {
{ .id = "ESS0968", .devs = { { "@@@0968" }, } },
{ .id = "", } /* end */
};
MODULE_DEVICE_TABLE(pnp_card, snd_es968_pnpids);
#define DRIVER_NAME "snd-card-es968"
static irqreturn_t snd_card_es968_interrupt(int irq, void *dev_id,
struct pt_regs *regs)
{
struct snd_sb *chip = dev_id;
if (chip->open & SB_OPEN_PCM) {
return snd_sb8dsp_interrupt(chip);
} else {
return snd_sb8dsp_midi_interrupt(chip);
}
}
static int __devinit snd_card_es968_pnp(int dev, struct snd_card_es968 *acard,
struct pnp_card_link *card,
const struct pnp_card_device_id *id)
{
struct pnp_dev *pdev;
struct pnp_resource_table *cfg = kmalloc(sizeof(*cfg), GFP_KERNEL);
int err;
if (!cfg)
return -ENOMEM;
acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
if (acard->dev == NULL) {
kfree(cfg);
return -ENODEV;
}
pdev = acard->dev;
pnp_init_resource_table(cfg);
/* override resources */
if (port[dev] != SNDRV_AUTO_PORT)
pnp_resource_change(&cfg->port_resource[0], port[dev], 16);
if (dma8[dev] != SNDRV_AUTO_DMA)
pnp_resource_change(&cfg->dma_resource[0], dma8[dev], 1);
if (irq[dev] != SNDRV_AUTO_IRQ)
pnp_resource_change(&cfg->irq_resource[0], irq[dev], 1);
if ((pnp_manual_config_dev(pdev, cfg, 0)) < 0)
snd_printk(KERN_ERR PFX "AUDIO the requested resources are invalid, using auto config\n");
err = pnp_activate_dev(pdev);
if (err < 0) {
snd_printk(KERN_ERR PFX "AUDIO pnp configure failure\n");
kfree(cfg);
return err;
}
port[dev] = pnp_port_start(pdev, 0);
dma8[dev] = pnp_dma(pdev, 1);
irq[dev] = pnp_irq(pdev, 0);
kfree(cfg);
return 0;
}
static int __devinit snd_card_es968_probe(int dev,
struct pnp_card_link *pcard,
const struct pnp_card_device_id *pid)
{
int error;
struct snd_sb *chip;
struct snd_card *card;
struct snd_card_es968 *acard;
if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
sizeof(struct snd_card_es968))) == NULL)
return -ENOMEM;
acard = card->private_data;
if ((error = snd_card_es968_pnp(dev, acard, pcard, pid))) {
snd_card_free(card);
return error;
}
snd_card_set_dev(card, &pcard->card->dev);
if ((error = snd_sbdsp_create(card, port[dev],
irq[dev],
snd_card_es968_interrupt,
dma8[dev],
-1,
SB_HW_AUTO, &chip)) < 0) {
snd_card_free(card);
return error;
}
acard->chip = chip;
if ((error = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) {
snd_card_free(card);
return error;
}
if ((error = snd_sbmixer_new(chip)) < 0) {
snd_card_free(card);
return error;
}
if ((error = snd_sb8dsp_midi(chip, 0, NULL)) < 0) {
snd_card_free(card);
return error;
}
strcpy(card->driver, "ES968");
strcpy(card->shortname, "ESS ES968");
sprintf(card->longname, "%s soundcard, %s at 0x%lx, irq %d, dma %d",
card->shortname, chip->name, chip->port, irq[dev], dma8[dev]);
if ((error = snd_card_register(card)) < 0) {
snd_card_free(card);
return error;
}
pnp_set_card_drvdata(pcard, card);
return 0;
}
static unsigned int __devinitdata es968_devices;
static int __devinit snd_es968_pnp_detect(struct pnp_card_link *card,
const struct pnp_card_device_id *id)
{
static int dev;
int res;
for ( ; dev < SNDRV_CARDS; dev++) {
if (!enable[dev])
continue;
res = snd_card_es968_probe(dev, card, id);
if (res < 0)
return res;
dev++;
es968_devices++;
return 0;
}
return -ENODEV;
}
static void __devexit snd_es968_pnp_remove(struct pnp_card_link * pcard)
{
snd_card_free(pnp_get_card_drvdata(pcard));
pnp_set_card_drvdata(pcard, NULL);
}
#ifdef CONFIG_PM
static int snd_es968_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
{
struct snd_card *card = pnp_get_card_drvdata(pcard);
struct snd_card_es968 *acard = card->private_data;
struct snd_sb *chip = acard->chip;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
snd_pcm_suspend_all(chip->pcm);
snd_sbmixer_suspend(chip);
return 0;
}
static int snd_es968_pnp_resume(struct pnp_card_link *pcard)
{
struct snd_card *card = pnp_get_card_drvdata(pcard);
struct snd_card_es968 *acard = card->private_data;
struct snd_sb *chip = acard->chip;
snd_sbdsp_reset(chip);
snd_sbmixer_resume(chip);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
#endif
static struct pnp_card_driver es968_pnpc_driver = {
.flags = PNP_DRIVER_RES_DISABLE,
.name = "es968",
.id_table = snd_es968_pnpids,
.probe = snd_es968_pnp_detect,
.remove = __devexit_p(snd_es968_pnp_remove),
#ifdef CONFIG_PM
.suspend = snd_es968_pnp_suspend,
.resume = snd_es968_pnp_resume,
#endif
};
static int __init alsa_card_es968_init(void)
{
int err = pnp_register_card_driver(&es968_pnpc_driver);
if (err)
return err;
if (!es968_devices) {
pnp_unregister_card_driver(&es968_pnpc_driver);
#ifdef MODULE
snd_printk(KERN_ERR "no ES968 based soundcards found\n");
#endif
return -ENODEV;
}
return 0;
}
static void __exit alsa_card_es968_exit(void)
{
pnp_unregister_card_driver(&es968_pnpc_driver);
}
module_init(alsa_card_es968_init)
module_exit(alsa_card_es968_exit)
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