linux/include/uapi/sound, branch v3.12.14

ALSA: compress: Fix 64bit ABI incompatibility

2013-12-20T15:48:49Z

commit 6733cf572a9e20db2b7580a5dd39d5782d571eec upstream. snd_pcm_uframes_t is defined as unsigned long so it would take different sizes depending on 32 or 64bit architectures. As we don't want this ABI incompatibility, and there is no real 64bit user yet, let's make it the fixed size with __u32. Also bump the protocol version number to 0.1.2. Acked-by: Vinod Koul Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

ALSA: hdspm - Fix SNDRV_HDSPM_IOCTL_GET_LTC

2013-08-19T18:09:09Z

Use struct hdspm_ltc to query the LTC, using a mixer struct is just plain wrong. Due to the wrong struct, this ioctl was never working, so we're free to fix it without breaking userspace compatibility. Signed-off-by: Adrian Knoth Signed-off-by: Takashi Iwai

ALSA: Replace the magic number 44 with const

2013-06-28T10:14:44Z

The char arrays with size 44 are for the name string of snd_ctl_elem_id. Define the constant and replace the raw numbers with it for clarifying better. Signed-off-by: Takashi Iwai

ALSA: add DSD formats

2013-04-18T08:02:33Z

This patch adds two formats for Direct Stream Digital (DSD), a pulse-density encoding format which is described here: https://en.wikipedia.org/wiki/Direct_Stream_Digital DSD operates on 2.8, 5.6 or 11.2MHz sample rates and as a 1-bit stream. The two new types added by this patch describe streams that are capable of handling DSD samples in DOP format as 8-bit or in 16-bit (or at a x8 or x16 data rate, respectively). DSD itself specifies samples in *bit*, while DOP and ALSA handle them as *bytes*. Hence, a factor of 8 or 16 has to be applied for the sample rare configuration, according to the following table: configured hardware 176.4KHz 352.8kHz 705.6KHz <---- sample rate 8-bit 2.8MHz 5.6MHz 16-bit 2.8Mhz 5.6MHz 11.2MHz `-----------------------------' actual DSD sample rates Signed-off-by: Daniel Mack Signed-off-by: Takashi Iwai

ALSA: compress: add support for gapless playback

2013-02-14T11:30:22Z

this add new API for sound compress to support gapless playback. As noted in Documentation change, we add API to send metadata of encoder and padding delay to DSP. Also add API for indicating EOF and switching to subsequent track Also bump the compress API version Signed-off-by: Jeeja KP Signed-off-by: Vinod Koul Signed-off-by: Takashi Iwai

ALSA: Extend chmap definitions for UAC2

2012-11-26T15:18:59Z

USB audio class 2 has more channel map positions than we currently have. Let's add missing definitions. Signed-off-by: Takashi Iwai

ALSA: core: fix 64-bit SNDRV_PCM_IOCTL_STATUS ABI breakage

2012-10-28T08:52:37Z

Commit 4eeaaeaea (ALSA: core: add hooks for audio timestamps) added the new audio_tstamp field to struct snd_pcm_status. However, struct timespec requires 64-bit alignment, so the 64-bit compiler would insert 32 bits of padding before this field, which broke SNDRV_PCM_IOCTL_STATUS with error messages like this: kernel: unknown ioctl = 0x80984120 To solve this, insert the padding explicitly so that it can be taken into account when calculating the ABI structure size. Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai

ALSA: core: add hooks for audio timestamps

2012-10-23T14:13:48Z

ALSA did not provide any direct means to infer the audio time for A/V sync and system/audio time correlations (eg. PulseAudio). Applications had to track the number of samples read/written and add/subtract the number of samples queued in the ring buffer. This accounting led to small errors, typically several samples, due to the two-step process. Computing the audio time in the kernel is more direct, as all the information is available in the same routines. Also add new .audio_wallclock routine to enable fine-grain synchronization between monotonic system time and audio hardware time. Using the wallclock, if supported in hardware, allows for a much better sub-microsecond precision and a common drift tracking for all devices sharing the same wall clock (master clock). Signed-off-by: Pierre-Louis Bossart Signed-off-by: Takashi Iwai

UAPI: (Scripted) Disintegrate include/sound

2012-10-09T08:49:13Z

Signed-off-by: David Howells Acked-by: Arnd Bergmann Acked-by: Thomas Gleixner Acked-by: Michael Kerrisk Acked-by: Paul E. McKenney Acked-by: Dave Jones

UAPI: (Scripted) Set up UAPI Kbuild files

2012-10-02T17:01:35Z

Set up empty UAPI Kbuild files to be populated by the header splitter. Signed-off-by: David Howells Acked-by: Arnd Bergmann Acked-by: Thomas Gleixner Acked-by: Paul E. McKenney Acked-by: Dave Jones