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[ALSA] pcm - Make the support of old API selectable 

Modules: ALSA Core,PCM Midlevel

Make the support of old API selectable via config option.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2005-12-01 10:51:58 +01:00 committed by Jaroslav Kysela
parent adf1b3d25e
commit 59d4858250
2 changed files with 14 additions and 0 deletions
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8
sound/core/Kconfig
View File

@ -122,6 +122,14 @@ config SND_DYNAMIC_MINORS
If you are unsure about this, say N here.
config SND_SUPPORT_OLD_API
bool "Support old ALSA API"
depends on SND
default y
help
Say Y here to support the obsolete ALSA PCM API (ver.0.9.0 rc3
or older).
config SND_VERBOSE_PRINTK
bool "Verbose printk"
depends on SND

6
sound/core/pcm_native.c
View File

@ -55,6 +55,7 @@ struct snd_pcm_hw_params_old {
unsigned char reserved[64];
};
#ifdef CONFIG_SND_SUPPORT_OLD_API
#define SNDRV_PCM_IOCTL_HW_REFINE_OLD _IOWR('A', 0x10, struct snd_pcm_hw_params_old)
#define SNDRV_PCM_IOCTL_HW_PARAMS_OLD _IOWR('A', 0x11, struct snd_pcm_hw_params_old)
@ -62,6 +63,7 @@ static int snd_pcm_hw_refine_old_user(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params_old __user * _oparams);
static int snd_pcm_hw_params_old_user(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params_old __user * _oparams);
#endif
static int snd_pcm_open(struct file *file, struct snd_pcm *pcm, int stream);
/*
@ -2527,10 +2529,12 @@ static int snd_pcm_common_ioctl1(struct snd_pcm_substream *substream,
return snd_pcm_delay(substream, arg);
case SNDRV_PCM_IOCTL_SYNC_PTR:
return snd_pcm_sync_ptr(substream, arg);
#ifdef CONFIG_SND_SUPPORT_OLD_API
case SNDRV_PCM_IOCTL_HW_REFINE_OLD:
return snd_pcm_hw_refine_old_user(substream, arg);
case SNDRV_PCM_IOCTL_HW_PARAMS_OLD:
return snd_pcm_hw_params_old_user(substream, arg);
#endif
case SNDRV_PCM_IOCTL_DRAIN:
return snd_pcm_drain(substream);
case SNDRV_PCM_IOCTL_DROP:
@ -3270,6 +3274,7 @@ static int snd_pcm_fasync(int fd, struct file * file, int on)
* To be removed helpers to keep binary compatibility
*/
#ifdef CONFIG_SND_SUPPORT_OLD_API
#define __OLD_TO_NEW_MASK(x) ((x&7)|((x&0x07fffff8)<<5))
#define __NEW_TO_OLD_MASK(x) ((x&7)|((x&0xffffff00)>>5))
@ -3379,6 +3384,7 @@ out:
kfree(oparams);
return err;
}
#endif /* CONFIG_SND_SUPPORT_OLD_API */
/*
* Register section