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[ALSA] Use platform_device

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Modules: SA11xx UDA1341 driver

Rewrite the probe/remove with platform_device.
Fix PM support, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2005-11-17 17:19:50 +01:00 • committed by Jaroslav Kysela
parent 792a6c5187
commit 2b3f558727
1 changed files with 57 additions and 21 deletions
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76
sound/arm/sa11xx-uda1341.c
View file

@ -21,7 +21,7 @@
* merged HAL layer (patches from Brian) * merged HAL layer (patches from Brian)
*/ */
/* $Id: sa11xx-uda1341.c,v 1.25 2005/11/17 15:10:58 tiwai Exp $ */ /* $Id: sa11xx-uda1341.c,v 1.26 2005/11/17 17:19:50 tiwai Exp $ */
/*************************************************************************************************** /***************************************************************************************************
* *
@ -64,6 +64,8 @@
#include <linux/module.h> #include <linux/module.h>
#include <linux/moduleparam.h> #include <linux/moduleparam.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/errno.h> #include <linux/errno.h>
#include <linux/ioctl.h> #include <linux/ioctl.h>
#include <linux/delay.h> #include <linux/delay.h>
@ -860,10 +862,13 @@ static int __init snd_card_sa11xx_uda1341_pcm(struct sa11xx_uda1341 *sa11xx_uda1
#ifdef CONFIG_PM #ifdef CONFIG_PM
static int snd_sa11xx_uda1341_suspend(struct snd_card *card, pm_message_t state) static int snd_sa11xx_uda1341_suspend(struct platform_device *devptr,
pm_message_t state)
{ {
struct sa11xx_uda1341 *chip = card->pm_private_data; struct snd_card *card = platform_get_drvdata(devptr);
struct sa11xx_uda1341 *chip = card->private_data;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
snd_pcm_suspend_all(chip->pcm); snd_pcm_suspend_all(chip->pcm);
#ifdef HH_VERSION #ifdef HH_VERSION
sa1100_dma_sleep(chip->s[SNDRV_PCM_STREAM_PLAYBACK].dmach); sa1100_dma_sleep(chip->s[SNDRV_PCM_STREAM_PLAYBACK].dmach);
@ -873,12 +878,14 @@ static int snd_sa11xx_uda1341_suspend(struct snd_card *card, pm_message_t state)
#endif #endif
l3_command(chip->uda1341, CMD_SUSPEND, NULL); l3_command(chip->uda1341, CMD_SUSPEND, NULL);
sa11xx_uda1341_audio_shutdown(chip); sa11xx_uda1341_audio_shutdown(chip);
return 0; return 0;
} }
static int snd_sa11xx_uda1341_resume(struct snd_card *card) static int snd_sa11xx_uda1341_resume(struct platform_device *devptr)
{ {
struct sa11xx_uda1341 *chip = card->pm_private_data; struct snd_card *card = platform_get_drvdata(devptr);
struct sa11xx_uda1341 *chip = card->private_data;
sa11xx_uda1341_audio_init(chip); sa11xx_uda1341_audio_init(chip);
l3_command(chip->uda1341, CMD_RESUME, NULL); l3_command(chip->uda1341, CMD_RESUME, NULL);
@ -888,6 +895,7 @@ static int snd_sa11xx_uda1341_resume(struct snd_card *card)
#else #else
//FIXME //FIXME
#endif #endif
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0; return 0;
} }
#endif /* COMFIG_PM */ #endif /* COMFIG_PM */
@ -900,27 +908,22 @@ void snd_sa11xx_uda1341_free(struct snd_card *card)
audio_dma_free(&chip->s[SNDRV_PCM_STREAM_CAPTURE]); audio_dma_free(&chip->s[SNDRV_PCM_STREAM_CAPTURE]);
} }
static struct snd_card *sa11xx_uda1341_card; static int __init sa11xx_uda1341_probe(struct platform_device *devptr)
static int __init sa11xx_uda1341_init(void)
{ {
int err; int err;
struct snd_card *card; struct snd_card *card;
struct sa11xx_uda1341 *chip; struct sa11xx_uda1341 *chip;
if (!machine_is_h3xxx())
return -ENODEV;
/* register the soundcard */ /* register the soundcard */
card = snd_card_new(-1, id, THIS_MODULE, sizeof(struct sa11xx_uda1341)); card = snd_card_new(-1, id, THIS_MODULE, sizeof(struct sa11xx_uda1341));
if (card == NULL) if (card == NULL)
return -ENOMEM; return -ENOMEM;
card->private_free = snd_sa11xx_uda1341_free;
chip = card->private_data; chip = card->private_data;
spin_lock_init(&chip->s[0].dma_lock); spin_lock_init(&chip->s[0].dma_lock);
spin_lock_init(&chip->s[1].dma_lock); spin_lock_init(&chip->s[1].dma_lock);
card->private_free = snd_sa11xx_uda1341_free;
chip->card = card; chip->card = card;
chip->samplerate = AUDIO_RATE_DEFAULT; chip->samplerate = AUDIO_RATE_DEFAULT;
@ -932,20 +935,15 @@ static int __init sa11xx_uda1341_init(void)
if ((err = snd_card_sa11xx_uda1341_pcm(chip, 0)) < 0) if ((err = snd_card_sa11xx_uda1341_pcm(chip, 0)) < 0)
goto nodev; goto nodev;
snd_card_set_generic_pm_callback(card,
snd_sa11xx_uda1341_suspend, snd_sa11_uda1341_resume,
chip);
strcpy(card->driver, "UDA1341"); strcpy(card->driver, "UDA1341");
strcpy(card->shortname, "H3600 UDA1341TS"); strcpy(card->shortname, "H3600 UDA1341TS");
sprintf(card->longname, "Compaq iPAQ H3600 with Philips UDA1341TS"); sprintf(card->longname, "Compaq iPAQ H3600 with Philips UDA1341TS");
if ((err = snd_card_set_generic_dev(card)) < 0) snd_card_set_dev(card, &devptr->dev);
goto nodev;
if ((err = snd_card_register(card)) == 0) { if ((err = snd_card_register(card)) == 0) {
printk( KERN_INFO "iPAQ audio support initialized\n" ); printk( KERN_INFO "iPAQ audio support initialized\n" );
sa11xx_uda1341_card = card; platform_set_drvdata(devptr, card);
return 0; return 0;
} }
@ -954,9 +952,47 @@ static int __init sa11xx_uda1341_init(void)
return err; return err;
} }
static int __devexit sa11xx_uda1341_remove(struct platform_device *devptr)
{
snd_card_free(platform_get_drvdata(devptr));
platform_set_drvdata(devptr, NULL);
return 0;
}
#define SA11XX_UDA1341_DRIVER "sa11xx_uda1341"
static struct platform_driver sa11xx_uda1341_driver = {
.probe = sa11xx_uda1341_probe,
.remove = __devexit_p(sa11xx_uda1341_remove),
#ifdef CONFIG_PM
.suspend = snd_sa11xx_uda1341_suspend,
.resume = snd_sa11xx_uda1341_resume,
#endif
.driver = {
.name = SA11XX_UDA1341_DRIVER,
},
};
static int __init sa11xx_uda1341_init(void)
{
int err;
struct platform_device *device;
if (!machine_is_h3xxx())
return -ENODEV;
if ((err = platform_driver_register(&sa11xx_uda1341_driver)) < 0)
return err;
device = platform_device_register_simple(SA11XX_UDA1341_DRIVER, -1, NULL, 0);
if (IS_ERR(device)) {
platform_driver_unregister(&sa11xx_uda1341_driver);
return PTR_ERR(device);
}
return 0;
}
static void __exit sa11xx_uda1341_exit(void) static void __exit sa11xx_uda1341_exit(void)
{ {
snd_card_free(sa11xx_uda1341_card); platform_driver_unregister(&sa11xx_uda1341_driver);
} }
module_init(sa11xx_uda1341_init); module_init(sa11xx_uda1341_init);