Merge "ALSA: core: Add support to handle compressed audio IOCTLs" (56f1653d) · Commits · e / devices / android_kernel_oneplus_sm7250

sound/core/pcm_native.c

+26 −1

Original line number	Diff line number	Diff line
		@@ -30,6 +30,7 @@
		#include <linux/dma-mapping.h>
		#include <sound/core.h>
		#include <sound/control.h>
		#include <sound/compress_offload.h>
		#include <sound/info.h>
		#include <sound/pcm.h>
		#include <sound/pcm_params.h>
		@@ -1259,6 +1260,20 @@ static int snd_pcm_start_lock_irq(struct snd_pcm_substream *substream)
		SNDRV_PCM_STATE_RUNNING);
		}

		static int snd_compressed_ioctl(struct snd_pcm_substream *substream,
		unsigned int cmd, void __user *arg)
		{
		struct snd_pcm_runtime *runtime;
		int err = 0;

		if (PCM_RUNTIME_CHECK(substream))
		return -ENXIO;
		runtime = substream->runtime;
		pr_debug("%s called with cmd = %d\n", __func__, cmd);
		err = substream->ops->ioctl(substream, cmd, arg);
		return err;
		}

		/*
		* stop callbacks
		*/
		@@ -2949,6 +2964,13 @@ static int snd_pcm_common_ioctl(struct file *file,
		return snd_pcm_rewind_ioctl(substream, arg);
		case SNDRV_PCM_IOCTL_FORWARD:
		return snd_pcm_forward_ioctl(substream, arg);
		case SNDRV_COMPRESS_GET_CAPS:
		case SNDRV_COMPRESS_GET_CODEC_CAPS:
		case SNDRV_COMPRESS_SET_PARAMS:
		case SNDRV_COMPRESS_GET_PARAMS:
		case SNDRV_COMPRESS_TSTAMP:
		case SNDRV_COMPRESS_DRAIN:
		return snd_compressed_ioctl(substream, cmd, arg);
		}
		pcm_dbg(substream->pcm, "unknown ioctl = 0x%x\n", cmd);
		return -ENOTTY;
		@@ -2961,7 +2983,10 @@ static long snd_pcm_ioctl(struct file *file, unsigned int cmd,

		pcm_file = file->private_data;

		if (((cmd >> 8) & 0xff) != 'A')
		if ((((cmd >> 8) & 0xff) != 'A') &&
		((pcm_file->substream->stream == SNDRV_PCM_STREAM_CAPTURE) \|\|
		(pcm_file->substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
		(((cmd >> 8) & 0xff) != 'C'))))
		return -ENOTTY;

		return snd_pcm_common_ioctl(file, pcm_file->substream, cmd,