ALSA: snd-usb-caiaq: fix reported elapsed periods

Reset the internal period position counter upon stream startup. This
fixes initial aplay underruns and problems related to latency picky
applications such as pulseaudio.

Bumped the version number to 1.3.14.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c
index 3f45c0fe61ab9771cbfdcc952dcb7e33f1657c74..b13ce767ac7235314bd8dad23373d640302167ca 100644 (file)
--- a/sound/usb/caiaq/audio.c
+++ b/sound/usb/caiaq/audio.c
@@ -195,11 +195,14 @@ static int snd_usb_caiaq_pcm_prepare(struct snd_pcm_substream *substream)
 
        debug("%s(%p)\n", __func__, substream);
        
-       if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+       if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+               dev->period_out_count[index] = BYTES_PER_SAMPLE + 1;
                dev->audio_out_buf_pos[index] = BYTES_PER_SAMPLE + 1;
-       else
+       } else {
+               dev->period_in_count[index] = BYTES_PER_SAMPLE;
                dev->audio_in_buf_pos[index] = BYTES_PER_SAMPLE;
-       
+       }
+
        if (dev->streaming)
                return 0;
        
@@ -300,8 +303,7 @@ static void check_for_elapsed_periods(struct snd_usb_caiaqdev *dev,
                if (!sub)
                        continue;
 
-               pb = frames_to_bytes(sub->runtime, 
-                                    sub->runtime->period_size);
+               pb = snd_pcm_lib_period_bytes(sub);
                cnt = (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
                                        &dev->period_out_count[stream] :
                                        &dev->period_in_count[stream];

diff --git a/sound/usb/caiaq/device.c b/sound/usb/caiaq/device.c
index 6d517705da0e7705292f96e0f23d8626a4f9e015..515de1cd2a3ecbaf30649cb48deab0a5732be1b2 100644 (file)
--- a/sound/usb/caiaq/device.c
+++ b/sound/usb/caiaq/device.c
@@ -35,7 +35,7 @@
 #include "input.h"
 
 MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
-MODULE_DESCRIPTION("caiaq USB audio, version 1.3.13");
+MODULE_DESCRIPTION("caiaq USB audio, version 1.3.14");
 MODULE_LICENSE("GPL");
 MODULE_SUPPORTED_DEVICE("{{Native Instruments, RigKontrol2},"
                         "{Native Instruments, RigKontrol3},"