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  1. 21 4月, 2015 2 次提交
    • T
      ALSA: usb-audio: Fix audio output on Roland SC-D70 sound module · 6d1f2f60
      由 Takamichi Horikawa 提交于 
      Roland SC-D70 reports its device class as vendor specific class and
the quirk QUIRK_AUDIO_FIXED_ENDPOINT was used for audio output.

In the quirks table the sampling rate was hard-coded to 44100 Hz
and therefore not worked when the sound module was in 48000 Hz mode.

In this change the quirk is changed to QUIRK_AUDIO_STANDARD_INTERFACE
but as the sound module reports incorrect bSubframeSize in its
descriptors, additional change is made in format.c to detect it and
to override it (which uses the existing code for Edirol SD-90).

Tested both when the sound module was in 44100 Hz mode and 48000 Hz
mode and both audio input and output. MIDI related part of the driver
is not touched.
Signed-off-by: NTakamichi Horikawa <takamichiho@gmail.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      6d1f2f60
    • M
      ALSA: hda - add AZX_DCAPS_I915_POWERWELL to Baytrail · 40cc2392
      由 Mengdong Lin 提交于 
      This patch addes AZX_DCAPS_I915_POWERWELL to BYT (Baytrail).

Like Braswell and Skylake, the HDMI codec on Bytrail is also in the shared
power well with GPU. This power well must be turned on before we reset link
to probe the codec, to avoid communication failure with the codec.

The side effect is that this power is always ON in S0 because the BYT HDMI
codec does not support EPSS or D3ClkStop and so the controller doesn't enter
D3 at runtime, and the HDMI codec and analog codec share a single physical
HD-A link and so we cannot reset the HD-A link freely when we re-enable the
power to use the HDMI codec.

Next step is to test if an AGP reset or double AGP reset on BYT HDMI codec is
okay to bring the HDMI codec back to a functional state after restoring the
power. If okay, we can bind the power on/off with the HDMI codec PM without
interrupting the analog audio.
Signed-off-by: NMengdong Lin <mengdong.lin@intel.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      40cc2392
  3. 20 4月, 2015 2 次提交
  5. 18 4月, 2015 2 次提交
    • A
      sound/oss: fix deadlock in sequencer_ioctl(SNDCTL_SEQ_OUTOFBAND) · bc26d4d0
      由 Alexey Khoroshilov 提交于 
      A deadlock can be initiated by userspace via ioctl(SNDCTL_SEQ_OUTOFBAND)
on /dev/sequencer with TMR_ECHO midi event.

In this case the control flow is:
sound_ioctl()
-> case SND_DEV_SEQ:
   case SND_DEV_SEQ2:
     sequencer_ioctl()
     -> case SNDCTL_SEQ_OUTOFBAND:
          spin_lock_irqsave(&lock,flags);
          play_event();
          -> case EV_TIMING:
               seq_timing_event()
               -> case TMR_ECHO:
                    seq_copy_to_input()
                    -> spin_lock_irqsave(&lock,flags);

It seems that spin_lock_irqsave() around play_event() is not necessary,
because the only other call location in seq_startplay() makes the call
without acquiring spinlock.

So, the patch just removes spinlocks around play_event().
By the way, it removes unreachable code in seq_timing_event(),
since (seq_mode == SEQ_2) case is handled in the beginning.

Compile tested only.

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      bc26d4d0
    • V
      ALSA: asound.h - use SNDRV_CTL_ELEM_ID_NAME_MAXLEN · 43c499dc
      由 Vinod Koul 提交于 
      we have defined SNDRV_CTL_ELEM_ID_NAME_MAXLEN as size of name array so use
this define instead of numeric value
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      43c499dc
  7. 17 4月, 2015 1 次提交
  9. 16 4月, 2015 3 次提交
  11. 14 4月, 2015 1 次提交
  13. 13 4月, 2015 26 次提交
  15. 12 4月, 2015 3 次提交