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  1. 23 Jul, 2018 1 commit
  3. 22 Jul, 2018 1 commit
    • Srikanth K H's avatar
      ALSA: timer: catch invalid timer object creation · d10ee9c5
      Srikanth K H authored 
      A timer object for the classes SNDRV_TIMER_CLASS_CARD and
SNDRV_TIMER_CLASS_PCM has to be associated with a card object, but we
have no check at creation time.  Such a timer object with NULL card
causes various unexpected problems, e.g. NULL dereference at reading
the sound timer proc file.

So as preventive measure while the creating the sound timer object is
created the card information availability is checked for the mentioned
entries and returned error if its NULL.
Signed-off-by: default avatarSrikanth K H <srikanth.h@samsung.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      d10ee9c5
  5. 19 Jul, 2018 2 commits
  7. 18 Jul, 2018 3 commits
  9. 17 Jul, 2018 11 commits
    • Takashi Iwai's avatar
      ALSA: rawmidi: Minor code refactoring · f5beb598
      Takashi Iwai authored 
      Unify a few open codes with helper functions to improve the
readability.  Minor behavior changes (rather fixes) are:
- runtime->drain clearance is done within lock
- active_sensing is updated before resizing buffer in
  SNDRV_RAWMIDI_IOCTL_PARAMS ioctl.
Other than that, simply code cleanups.
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      f5beb598
    • Takashi Iwai's avatar
      ALSA: rawmidi: Simplify error paths · 7fdc9b08
      Takashi Iwai authored 
      Apply the standard idiom: rewrite the multiple unlocks in error paths
in the goto-error-and-single-unlock way.

Just a code refactoring, and no functional changes.
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      7fdc9b08
    • Takashi Iwai's avatar
      ALSA: rawmidi: Tidy up coding styles · 5bed9139
      Takashi Iwai authored 
      Just minor coding style fixes like removal of superfluous white space,
adding missing blank lines, etc.  No actual code changes at all.
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      5bed9139
    • Takashi Iwai's avatar
      Merge branch 'for-linus' into for-next · ed6b83d2
      Takashi Iwai authored 
      Back-merge for further cleanup / improvements on rawmidi and HD-audio
stuff.
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      ed6b83d2
    • Takashi Iwai's avatar
      ALSA: hda: Make audio component support more generic · a57942bf
      Takashi Iwai authored 
      This is the final step for more generic support of DRM audio
component.  The generic audio component code is now moved to its own
file, and the symbols are renamed from snd_hac_i915_* to
snd_hdac_acomp_*, respectively.  The generic code is enabled via the
new kconfig, CONFIG_SND_HDA_COMPONENT, while CONFIG_SND_HDA_I915 is
kept as the super-class.

Along with the split, three new callbacks are added to audio_ops:
pin2port is for providing the conversion between the pin number and
the widget id, and master_bind/master_unbin are called at binding /
unbinding the master component, respectively.  All these are optional,
but used in i915 implementation and also other later implementations.

A note about the new snd_hdac_acomp_init() function: there is a slight
difference between this and the old snd_hdac_i915_init().  The latter
(still) synchronizes with the master component binding, i.e. it
assures that the relevant DRM component gets bound when it returns, or
gives a negative error.  Meanwhile the new function doesn't
synchronize but just leaves as is.  It's the responsibility by the
caller's side to synchronize, or the caller may accept the
asynchronous binding on the fly.

v1->v2: Fix missing NULL check in master_bind/unbind
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      a57942bf
    • Takashi Iwai's avatar
      ALSA: hda/i915: Associate audio component with devres · 82887c0b
      Takashi Iwai authored 
      The HD-audio i915 binding code contains a single pointer, hdac_acomp,
for allowing the access to audio component from the master bind/unbind
callbacks.  This was needed because the callbacks pass only the device
pointer and we can't guarantee the object type assigned to the drvdata
(which is free for each controller driver implementation).
And this implementation will be a problem if we support multiple
components for different DRM drivers, not only i915.

As a solution, allocate the audio component object via devres and
associate it with the given device, so that the component callbacks
can refer to it via devres_find().

The removal of the object is still done half-manually via
devres_destroy() to make the code consistent (although it may work
without the explicit call).

Also, the snd_hda_i915_register_notifier() had the reference to
hdac_acomp as well.  In this patch, the corresponding code is removed
by passing hdac_bus object to the function, too.
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      82887c0b
    • Takashi Iwai's avatar
      drm/i915: Split audio component to a generic type · ae891abe
      Takashi Iwai authored 
      For allowing other drivers to use the DRM audio component, rename the
i915_audio_component_* with drm_audio_component_*, and split the
generic part into drm_audio_component.h.  The i915 specific stuff
remains in struct i915_audio_component, which contains
drm_audio_component as the base.

The license of drm_audio_component.h is kept to MIT as same as the the
original i915_component.h.

This is a preliminary change for further development, and no
functional changes by this patch itself, merely code-split and
renames.

v1->v2: Use SPDX for drm_audio_component.h, fix remaining i915
        argument in drm_audio_component.h
Reviewed-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      ae891abe
    • Takashi Iwai's avatar
      ALSA: rawmidi: Change resized buffers atomically · 39675f7a
      Takashi Iwai authored 
      The SNDRV_RAWMIDI_IOCTL_PARAMS ioctl may resize the buffers and the
current code is racy.  For example, the sequencer client may write to
buffer while it being resized.

As a simple workaround, let's switch to the resized buffer inside the
stream runtime lock.

Reported-by: syzbot+52f83f0ea8df16932f7f@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      39675f7a
    • Gustavo A. R. Silva's avatar
      ALSA: emu8000: Use swap macro in snd_emu8000_sample_new · 7373c2a9
      Gustavo A. R. Silva authored 
      Make use of the swap macro and remove unnecessary variable *tmp*. This
makes the code easier to read and maintain.

This code was detected with the help of Coccinelle.
Signed-off-by: default avatarGustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      7373c2a9
    • Gustavo A. R. Silva's avatar
      ALSA: emu10k1_patch: Use swap macro in snd_emu10k1_sample_new · e2d2f240
      Gustavo A. R. Silva authored 
      Make use of the swap macro and remove unnecessary variable *tmp*. This
makes the code easier to read and maintain.

This code was detected with the help of Coccinelle.
Signed-off-by: default avatarGustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      e2d2f240
    • Jim Qu's avatar
      vga_switcheroo: set audio client id according to bound GPU id · 4aaf448f
      Jim Qu authored 
      On modern laptop, there are more and more platforms
have two GPUs, and each of them maybe have audio codec
for HDMP/DP output. For some dGPU which is no output,
audio codec usually is disabled.

In currect HDA audio driver, it will set all codec as
VGA_SWITCHEROO_DIS, the audio which is binded to UMA
will be suspended if user use debugfs to contorl power

In HDA driver side, it is difficult to know which GPU
the audio has binded to. So set the bound gpu pci dev
to vga_switcheroo.

if the audio client is not the third registration, audio
id will set in vga_switcheroo enable function. if the
audio client is the last registration when vga_switcheroo
_ready() get true, we should get audio client id from bound
GPU directly.
Signed-off-by: default avatarJim Qu <Jim.Qu@amd.com>
Reviewed-by: default avatarLukas Wunner <lukas@wunner.de>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      4aaf448f
  11. 16 Jul, 2018 14 commits
  13. 15 Jul, 2018 2 commits
  15. 14 Jul, 2018 6 commits
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