ALSA: emu10k1: Allow to switch hardware sampe rate on EMU

Commit 57e5c63007955838043e34c732d224b2cbbb128f "emu10k1: allow to
 disable the SRC" force hardware use only one rate (48000 hz).
EMU 0404/1010/1616 have support two hardware sampling rates (44100 and
48000 hz). This patch add check if we have EMU 0404/1010/1616 and
choose correct sample rate to restrict.

Signed-off-by: Mihail Zenkov <mihail.zenkov@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/emu10k1/emupcm.c b/sound/pci/emu10k1/emupcm.c
index 748a286..5ae1d04 100644 (file)
--- a/sound/pci/emu10k1/emupcm.c
+++ b/sound/pci/emu10k1/emupcm.c
@@ -1127,7 +1127,7 @@ static int snd_emu10k1_playback_open(struct snd_pcm_substream *substream)
        struct snd_emu10k1_pcm *epcm;
        struct snd_emu10k1_pcm_mixer *mix;
        struct snd_pcm_runtime *runtime = substream->runtime;
-       int i, err;
+       int i, err, sample_rate;
 
        epcm = kzalloc(sizeof(*epcm), GFP_KERNEL);
        if (epcm == NULL)
@@ -1146,7 +1146,11 @@ static int snd_emu10k1_playback_open(struct snd_pcm_substream *substream)
                kfree(epcm);
                return err;
        }
-       err = snd_pcm_hw_rule_noresample(runtime, 48000);
+       if (emu->card_capabilities->emu_model && emu->emu1010.internal_clock == 0)
+               sample_rate = 44100;
+       else
+               sample_rate = 48000;
+       err = snd_pcm_hw_rule_noresample(runtime, sample_rate);
        if (err < 0) {
                kfree(epcm);
                return err;