kernel/include/uapi/sound/asound.h, branch linux-3.17.y

ALSA: pcm: Introduce protocol version field to sw_params

2014-07-21T07:07:46Z

For controlling the new fields more strictly, add sw_params.proto field indicating the protocol version of the user-space. User-space should fill the SNDRV_PCM_VERSION value it's built with, then kernel can know whether the new fields should be evaluated or not. And now tstamp_type field is evaluated only when the valid value is set there. This avoids the wrong override of tstamp_type to zero, which is SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY. Signed-off-by: Takashi Iwai

ALSA: pcm: Add timestamp type to sw_params

2014-07-10T14:58:15Z

For allowing adjusting the timestamp type on the fly, add it to sw_params. The existing ioctl is still kept for compatibility. Along with this, increment the PCM protocol version. The extension was suggested by Clemens Ladisch. Acked-by: Jaroslav Kysela Reviewed-by: Mark Brown Signed-off-by: Takashi Iwai

ALSA: Provide a CLOCK_MONOTONIC_RAW timestamp type

2014-07-10T14:58:13Z

For applications which need to synchronise with external timebases such as broadcast TV applications the kernel monotonic time is not optimal as it includes adjustments from NTP and so may still include discontinuities due to that. A raw monotonic time which does not include any adjustments is available in the kernel from getrawmonotonic() so provide userspace with a new timestamp type SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW which provides timestamps based on this as an option. [dropped tstamp_type assignment code, as it's no longer needed -- tiwai] Reported-by: Daniel Thompson Signed-off-by: Mark Brown Acked-by: Jaroslav Kysela Signed-off-by: Takashi Iwai

ALSA: bebob: Add hwdep interface

2014-05-26T12:31:03Z

This interface is designed for mixer/control application. By using hwdep interface, the application can get information about firewire node, can lock/unlock kernel streaming and can get notification at starting/stopping kernel streaming. Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai

ALSA: fireworks: Add hwdep interface

2014-05-26T12:28:41Z

This interface is designed for mixer/control application. To use hwdep interface, the application can get information about firewire node, can lock/unlock kernel streaming and can get notification at starting/stopping kernel streaming. Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai

ALSA: add DICE driver

2013-10-17T19:18:32Z

As a start point for further development, this is an incomplete driver for DICE devices: - only playback (so no clock source except the bus clock) - only 44.1 kHz - no MIDI - recovery after bus reset is slow - hwdep device is created, but not actually implemented Contains compilation fixes by Stefan Richter. Signed-off-by: Clemens Ladisch

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: 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