C++ (Cpp) snd_ad1816a_get_format Beispiele

Beispiel #1

Datei: ad1816a_lib.c Projekt: adis1313/android_kernel_samsung_msm8974

static int snd_ad1816a_capture_prepare(struct snd_pcm_substream *substream)
{
	struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
	unsigned long flags;
	struct snd_pcm_runtime *runtime = substream->runtime;
	unsigned int size, rate;

	spin_lock_irqsave(&chip->lock, flags);

	chip->c_dma_size = size = snd_pcm_lib_buffer_bytes(substream);
	snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
		AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00);

	snd_dma_program(chip->dma2, runtime->dma_addr, size,
			DMA_MODE_READ | DMA_AUTOINIT);

	rate = runtime->rate;
	if (chip->clock_freq)
		rate = (rate * 33000) / chip->clock_freq;
	snd_ad1816a_write(chip, AD1816A_CAPTURE_SAMPLE_RATE, rate);
	snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
		AD1816A_FMT_ALL | AD1816A_FMT_STEREO,
		snd_ad1816a_get_format(chip, runtime->format,
			runtime->channels));

	snd_ad1816a_write(chip, AD1816A_CAPTURE_BASE_COUNT,
		snd_pcm_lib_period_bytes(substream) / 4 - 1);

	spin_unlock_irqrestore(&chip->lock, flags);
	return 0;
}

Beispiel #2

Datei: ad1816a_lib.c Projekt: GodFox/magx_kernel_xpixl

static int snd_ad1816a_playback_prepare(snd_pcm_substream_t *substream)
{
	ad1816a_t *chip = snd_pcm_substream_chip(substream);
	unsigned long flags;
	snd_pcm_runtime_t *runtime = substream->runtime;
	unsigned int size;

	spin_lock_irqsave(&chip->lock, flags);

	chip->p_dma_size = size = snd_pcm_lib_buffer_bytes(substream);
	snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
		AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00);

	snd_dma_program(chip->dma1, runtime->dma_addr, size,
			DMA_MODE_WRITE | DMA_AUTOINIT);

	snd_ad1816a_write(chip, AD1816A_PLAYBACK_SAMPLE_RATE, runtime->rate);
	snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
		AD1816A_FMT_ALL | AD1816A_FMT_STEREO,
		snd_ad1816a_get_format(chip, runtime->format,
			runtime->channels));

	snd_ad1816a_write(chip, AD1816A_PLAYBACK_BASE_COUNT,
		snd_pcm_lib_period_bytes(substream) / 4 - 1);

	spin_unlock_irqrestore(&chip->lock, flags);
	return 0;
}