[ALSA] cmi8330 - Use platform_device, add PM support

Modules: CMI8330 driver

Rewrite the probe/remove with platform_device.
Also, add the PM support.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2005-11-17 17:11:35 +01:00 committed by Jaroslav Kysela
parent 175cdcfb11
commit acdcbc1542

View file

@ -45,6 +45,8 @@
#include <sound/driver.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/pnp.h>
#include <linux/moduleparam.h>
@ -156,8 +158,6 @@ struct snd_cmi8330 {
} streams[2];
};
static struct snd_card *snd_cmi8330_legacy[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
#ifdef CONFIG_PNP
static struct pnp_card_device_id snd_cmi8330_pnpids[] = {
@ -429,6 +429,31 @@ static int __devinit snd_cmi8330_pcm(struct snd_card *card, struct snd_cmi8330 *
}
#ifdef CONFIG_PM
static int snd_cmi8330_suspend(struct snd_card *card)
{
struct snd_cmi8330 *acard = card->private_data;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
snd_pcm_suspend_all(acard->pcm);
acard->wss->suspend(acard->wss);
snd_sbmixer_suspend(acard->sb);
return 0;
}
static int snd_cmi8330_resume(struct snd_card *card)
{
struct snd_cmi8330 *acard = card->private_data;
snd_sbdsp_reset(acard->sb);
snd_sbmixer_suspend(acard->sb);
acard->wss->resume(acard->wss);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
#endif
/*
*/
@ -440,44 +465,28 @@ static int __devinit snd_cmi8330_pcm(struct snd_card *card, struct snd_cmi8330 *
#define PFX "cmi8330: "
static int __devinit snd_cmi8330_probe(int dev,
struct pnp_card_link *pcard,
const struct pnp_card_device_id *pid)
static struct snd_card *snd_cmi8330_card_new(int dev)
{
struct snd_card *card;
struct snd_cmi8330 *acard;
int i, err;
if (! is_isapnp_selected(dev)) {
if (wssport[dev] == SNDRV_AUTO_PORT) {
snd_printk(KERN_ERR PFX "specify wssport\n");
return -EINVAL;
}
if (sbport[dev] == SNDRV_AUTO_PORT) {
snd_printk(KERN_ERR PFX "specify sbport\n");
return -EINVAL;
}
}
card = snd_card_new(index[dev], id[dev], THIS_MODULE,
sizeof(struct snd_cmi8330));
if (card == NULL) {
snd_printk(KERN_ERR PFX "could not get a new card\n");
return -ENOMEM;
return NULL;
}
acard = (struct snd_cmi8330 *)card->private_data;
acard = card->private_data;
acard->card = card;
return card;
}
#ifdef CONFIG_PNP
if (isapnp[dev]) {
if ((err = snd_cmi8330_pnp(dev, acard, pcard, pid)) < 0) {
snd_printk(KERN_ERR PFX "PnP detection failed\n");
goto _err;
}
snd_card_set_dev(card, &pcard->card->dev);
}
#endif
static int __devinit snd_cmi8330_probe(struct snd_card *card, int dev)
{
struct snd_cmi8330 *acard;
int i, err;
acard = card->private_data;
if ((err = snd_ad1848_create(card,
wssport[dev] + 4,
wssirq[dev],
@ -485,12 +494,11 @@ static int __devinit snd_cmi8330_probe(int dev,
AD1848_HW_DETECT,
&acard->wss)) < 0) {
snd_printk(KERN_ERR PFX "(AD1848) device busy??\n");
goto _err;
return err;
}
if (acard->wss->hardware != AD1848_HW_CMI8330) {
snd_printk(KERN_ERR PFX "(AD1848) not found during probe\n");
err = -ENODEV;
goto _err;
return -ENODEV;
}
if ((err = snd_sbdsp_create(card, sbport[dev],
@ -500,11 +508,11 @@ static int __devinit snd_cmi8330_probe(int dev,
sbdma16[dev],
SB_HW_AUTO, &acard->sb)) < 0) {
snd_printk(KERN_ERR PFX "(SB16) device busy??\n");
goto _err;
return err;
}
if (acard->sb->hardware != SB_HW_16) {
snd_printk(KERN_ERR PFX "(SB16) not found during probe\n");
goto _err;
return err;
}
snd_ad1848_out(acard->wss, AD1848_MISC_INFO, 0x40); /* switch on MODE2 */
@ -513,12 +521,12 @@ static int __devinit snd_cmi8330_probe(int dev,
if ((err = snd_cmi8330_mixer(card, acard)) < 0) {
snd_printk(KERN_ERR PFX "failed to create mixers\n");
goto _err;
return err;
}
if ((err = snd_cmi8330_pcm(card, acard)) < 0) {
snd_printk(KERN_ERR PFX "failed to create pcms\n");
goto _err;
return err;
}
strcpy(card->driver, "CMI8330/C3D");
@ -529,79 +537,162 @@ static int __devinit snd_cmi8330_probe(int dev,
wssirq[dev],
wssdma[dev]);
if ((err = snd_card_set_generic_dev(card)) < 0)
goto _err;
if ((err = snd_card_register(card)) < 0)
goto _err;
if (pcard)
pnp_set_card_drvdata(pcard, card);
else
snd_cmi8330_legacy[dev] = card;
return 0;
_err:
snd_card_free(card);
return err;
return snd_card_register(card);
}
static int __init snd_cmi8330_nonpnp_probe(struct platform_device *pdev)
{
struct snd_card *card;
int err;
int dev = pdev->id;
if (wssport[dev] == SNDRV_AUTO_PORT) {
snd_printk(KERN_ERR PFX "specify wssport\n");
return -EINVAL;
}
if (sbport[dev] == SNDRV_AUTO_PORT) {
snd_printk(KERN_ERR PFX "specify sbport\n");
return -EINVAL;
}
card = snd_cmi8330_card_new(dev);
if (! card)
return -ENOMEM;
snd_card_set_dev(card, &pdev->dev);
if ((err = snd_cmi8330_probe(card, dev)) < 0) {
snd_card_free(card);
return err;
}
platform_set_drvdata(pdev, card);
return 0;
}
static int snd_cmi8330_nonpnp_remove(struct platform_device *devptr)
{
snd_card_free(platform_get_drvdata(devptr));
platform_set_drvdata(devptr, NULL);
return 0;
}
#ifdef CONFIG_PM
static int snd_cmi8330_nonpnp_suspend(struct platform_device *dev, pm_message_t state)
{
return snd_cmi8330_suspend(platform_get_drvdata(dev));
}
static int snd_cmi8330_nonpnp_resume(struct platform_device *dev)
{
return snd_cmi8330_resume(platform_get_drvdata(dev));
}
#endif
#define CMI8330_DRIVER "snd_cmi8330"
static struct platform_driver snd_cmi8330_driver = {
.probe = snd_cmi8330_nonpnp_probe,
.remove = snd_cmi8330_nonpnp_remove,
#ifdef CONFIG_PM
.suspend = snd_cmi8330_nonpnp_suspend,
.resume = snd_cmi8330_nonpnp_resume,
#endif
.driver = {
.name = CMI8330_DRIVER
},
};
#ifdef CONFIG_PNP
static int __devinit snd_cmi8330_pnp_detect(struct pnp_card_link *card,
const struct pnp_card_device_id *id)
static int __devinit snd_cmi8330_pnp_detect(struct pnp_card_link *pcard,
const struct pnp_card_device_id *pid)
{
static int dev;
struct snd_card *card;
int res;
for ( ; dev < SNDRV_CARDS; dev++) {
if (!enable[dev] || !isapnp[dev])
continue;
res = snd_cmi8330_probe(dev, card, id);
if (res < 0)
return res;
dev++;
return 0;
if (enable[dev] && isapnp[dev])
break;
}
return -ENODEV;
if (dev >= SNDRV_CARDS)
return -ENODEV;
card = snd_cmi8330_card_new(dev);
if (! card)
return -ENOMEM;
if ((res = snd_cmi8330_pnp(dev, card->private_data, pcard, pid)) < 0) {
snd_printk(KERN_ERR PFX "PnP detection failed\n");
snd_card_free(card);
return res;
}
snd_card_set_dev(card, &pcard->card->dev);
if ((res = snd_cmi8330_probe(card, dev)) < 0) {
snd_card_free(card);
return res;
}
pnp_set_card_drvdata(pcard, card);
dev++;
return 0;
}
static void __devexit snd_cmi8330_pnp_remove(struct pnp_card_link * pcard)
{
struct snd_card *card = (struct snd_card *) pnp_get_card_drvdata(pcard);
snd_card_disconnect(card);
snd_card_free_in_thread(card);
snd_card_free(pnp_get_card_drvdata(pcard));
pnp_set_card_drvdata(pcard, NULL);
}
#ifdef CONFIG_PM
static int snd_cmi8330_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
{
return snd_cmi8330_suspend(pnp_get_card_drvdata(pcard));
}
static int snd_cmi8330_pnp_resume(struct pnp_card_link *pcard)
{
return snd_cmi8330_resume(pnp_get_card_drvdata(pcard));
}
#endif
static struct pnp_card_driver cmi8330_pnpc_driver = {
.flags = PNP_DRIVER_RES_DISABLE,
.name = "cmi8330",
.id_table = snd_cmi8330_pnpids,
.probe = snd_cmi8330_pnp_detect,
.remove = __devexit_p(snd_cmi8330_pnp_remove),
#ifdef CONFIG_PM
.suspend = snd_cmi8330_pnp_suspend,
.resume = snd_cmi8330_pnp_resume,
#endif
};
#endif /* CONFIG_PNP */
static int __init alsa_card_cmi8330_init(void)
{
int dev, cards = 0;
int i, err, cards = 0;
for (dev = 0; dev < SNDRV_CARDS; dev++) {
if (!enable[dev])
if ((err = platform_driver_register(&snd_cmi8330_driver)) < 0)
return err;
for (i = 0; i < SNDRV_CARDS && enable[i]; i++) {
struct platform_device *device;
if (is_isapnp_selected(i))
continue;
if (is_isapnp_selected(dev))
continue;
if (snd_cmi8330_probe(dev, NULL, NULL) >= 0)
cards++;
device = platform_device_register_simple(CMI8330_DRIVER,
i, NULL, 0);
if (IS_ERR(device)) {
err = PTR_ERR(device);
platform_driver_unregister(&snd_cmi8330_driver);
return err;
}
cards++;
}
#ifdef CONFIG_PNP
cards += pnp_register_card_driver(&cmi8330_pnpc_driver);
#endif
err = pnp_register_card_driver(&cmi8330_pnpc_driver);
if (err > 0)
cards += err;
if (!cards) {
#ifdef CONFIG_PNP
pnp_unregister_card_driver(&cmi8330_pnpc_driver);
#endif
platform_driver_unregister(&snd_cmi8330_driver);
#ifdef MODULE
snd_printk(KERN_ERR "CMI8330 not found or device busy\n");
#endif
@ -612,14 +703,8 @@ static int __init alsa_card_cmi8330_init(void)
static void __exit alsa_card_cmi8330_exit(void)
{
int i;
#ifdef CONFIG_PNP
/* PnP cards first */
pnp_unregister_card_driver(&cmi8330_pnpc_driver);
#endif
for (i = 0; i < SNDRV_CARDS; i++)
snd_card_free(snd_cmi8330_legacy[i]);
platform_driver_unregister(&snd_cmi8330_driver);
}
module_init(alsa_card_cmi8330_init)