Exemplos de mxs_dma_get_cooked em C++ (Cpp)

Exemplo n.º 1

Arquivo: mxs-pcm.c Projeto: tiagolb/liboot-tz

static int mxs_pcm_close(struct snd_pcm_substream *substream)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct mxs_runtime_data *prtd = runtime->private_data;
	int desc_num = mxs_pcm_hardware.periods_max;
	int desc;
	int timeo = 20;

	static LIST_HEAD(list);
	mxs_dma_disable(prtd->dma_ch);

	/* Wait until the DMA chain is finished. */
	while (mxs_dma_read_semaphore(prtd->dma_ch)) {
		if (!timeo--)
			break;
		pr_debug("The sema is not zero now\n");
		msleep(10);
	}
	if (timeo <= 0)
		pr_warn("Is the DMA channel dead?\n");

	/* Free DMA irq */
	free_irq(prtd->params->irq, substream);
	mxs_dma_get_cooked(prtd->dma_ch, &list);
	/* Free DMA channel*/
	for (desc = 0; desc < desc_num; desc++)
		mxs_dma_free_desc(prtd->dma_desc_array[desc]);
	mxs_dma_release(prtd->dma_ch, mxs_pcm_dev);

	/* Free private runtime data */
	kfree(prtd);
	return 0;
}

Exemplo n.º 2

Arquivo: mxs-pcm.c Projeto: fread-ink/fread-kernel-k4

static int mxs_pcm_close(struct snd_pcm_substream *substream)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct mxs_runtime_data *prtd = runtime->private_data;
	int desc_num = mxs_pcm_hardware.periods_max;
	int desc;

	static LIST_HEAD(list);
	mxs_dma_disable(prtd->dma_ch);
	/* Free DMA irq */
	free_irq(prtd->params->irq, substream);
	mxs_dma_get_cooked(prtd->dma_ch, &list);
	/* Free DMA channel*/
	for (desc = 0; desc < desc_num; desc++)
		mxs_dma_free_desc(prtd->dma_desc_array[desc]);
	mxs_dma_release(prtd->dma_ch, mxs_pcm_dev);

	/* Free private runtime data */
	kfree(prtd);
	return 0;
}