kernel.git/sound/core/pcm_native.c, branch linux-3.2.y

ALSA: pcm: Use dma_bytes as size parameter in dma_mmap_coherent()

2018-05-31T23:30:25Z

commit 9066ae7ff5d89c0b5daa271e2d573540097a94fa upstream. When trying to use the driver (e.g. aplay *.wav), the 4MiB DMA buffer will get mmapp'ed in 16KiB chunks. But this fails with the 2nd 16KiB area, as the page offset is outside of the VMA range (size), which is currently used as size parameter in snd_pcm_lib_default_mmap(). By using the DMA buffer size (dma_bytes) instead, the complete DMA buffer can be mmapp'ed and the issue is fixed. This issue was detected on an ARM platform (TI AM57xx) using the RME HDSP MADI PCIe soundcard. Fixes: 657b1989dacf ("ALSA: pcm - Use dma_mmap_coherent() if available") Signed-off-by: Stefan Roese Signed-off-by: Takashi Iwai Signed-off-by: Ben Hutchings

ALSA: pcm: Don't leave PREPARED state after draining

2015-05-09T22:16:20Z

commit 70372a7566b5e552dbe48abdac08c275081d8558 upstream. When a PCM draining is performed to an empty stream that has been already in PREPARED state, the current code just ignores and leaves as it is, although the drain is supposed to set all such streams to SETUP state. This patch covers that overlooked case. Signed-off-by: Takashi Iwai Signed-off-by: Ben Hutchings

vm: convert snd_pcm_lib_mmap_iomem() to vm_iomap_memory() helper

2013-05-13T14:02:33Z

commit 0fe09a45c4848b5b5607b968d959fdc1821c161d upstream. This is my example conversion of a few existing mmap users. The pcm mmap case is one of the more straightforward ones. Acked-by: Takashi Iwai Signed-off-by: Linus Torvalds Signed-off-by: Ben Hutchings

ALSA: Fix card refcount unbalance

2012-11-16T16:47:11Z

commit 8bb4d9ce08b0a92ca174e41d92c180328f86173f upstream. There are uncovered cases whether the card refcount introduced by the commit a0830dbd isn't properly increased or decreased: - OSS PCM and mixer success paths - When lookup function gets NULL This patch fixes these places. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=50251 Signed-off-by: Takashi Iwai Signed-off-by: Ben Hutchings

ALSA: Avoid endless sleep after disconnect

2012-11-16T16:46:50Z

commit 0914f7961babbf28aaa2f19b453951fb4841c03f upstream. When disconnect callback is called, each component should wake up sleepers and check card->shutdown flag for avoiding the endless sleep blocking the proper resource release. Signed-off-by: Takashi Iwai Signed-off-by: Ben Hutchings

ALSA: Add a reference counter to card instance

2012-11-16T16:46:50Z

commit a0830dbd4e42b38aefdf3fb61ba5019a1a99ea85 upstream. For more strict protection for wild disconnections, a refcount is introduced to the card instance, and let it up/down when an object is referred via snd_lookup_*() in the open ops. The free-after-last-close check is also changed to check this refcount instead of the empty list, too. Reported-by: Matthieu CASTET Signed-off-by: Takashi Iwai Signed-off-by: Ben Hutchings

ALSA: PCM: Fix some races at disconnection

2012-11-16T16:46:48Z

commit 9b0573c07f278e9888c352aa9724035c75784ea0 upstream. Fix races at PCM disconnection: - while a PCM device is being opened or closed - while the PCM state is being changed without lock in prepare, hw_params, hw_free ops Reported-by: Matthieu CASTET Signed-off-by: Takashi Iwai Signed-off-by: Ben Hutchings

sound: Add module.h to the previously silent sound users

2011-10-31T23:31:21Z

Lots of sound drivers were getting module.h via the implicit presence of it in but we are going to clean that up. So fix up those users now. Signed-off-by: Paul Gortmaker

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

2011-10-28T21:25:01Z

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (549 commits) ALSA: hda - Fix ADC input-amp handling for Cx20549 codec ALSA: hda - Keep EAPD turned on for old Conexant chips ALSA: hda/realtek - Fix missing volume controls with ALC260 ASoC: wm8940: Properly set codec->dapm.bias_level ALSA: hda - Fix pin-config for ASUS W90V ALSA: hda - Fix surround/CLFE headphone and speaker pins order ALSA: hda - Fix typo ALSA: Update the sound git tree URL ALSA: HDA: Add new revision for ALC662 ASoC: max98095: Convert codec->hw_write to snd_soc_write ASoC: keep pointer to resource so it can be freed ASoC: sgtl5000: Fix wrong mask in some snd_soc_update_bits calls ASoC: wm8996: Fix wrong mask for setting WM8996_AIF_CLOCKING_2 ASoC: da7210: Add support for line out and DAC ASoC: da7210: Add support for DAPM ALSA: hda/realtek - Fix DAC assignments of multiple speakers ASoC: Use SGTL5000_LINREG_VDDD_MASK instead of hardcoded mask value ASoC: Set sgtl5000->ldo in ldo_regulator_register ASoC: wm8996: Use SND_SOC_DAPM_AIF_OUT for AIF2 Capture ASoC: wm8994: Use SND_SOC_DAPM_AIF_OUT for AIF3 Capture ...

Merge branch 'topic/misc' into for-linus

2011-10-26T21:51:43Z