C++ (Cpp) cad_read Examples

Example #1

File: qsd8k-pcm.c Project: mtuton/linux_u82x0

static int qsd_pcm_capture_copy(struct snd_pcm_substream *substream, int a,
				 snd_pcm_uframes_t hwoff, void __user *buf,
				 snd_pcm_uframes_t frames)
{
	int fbytes = 0;
	size_t xfer;
	int rc = 0;

	struct snd_pcm_runtime *runtime = substream->runtime;
	struct qsd_audio *prtd = runtime->private_data;

	fbytes = frames_to_bytes(runtime, frames);
	fbytes = fbytes;

	prtd->cbs.buffer = (void *)buf;
	prtd->cbs.phys_addr = 0;
	prtd->cbs.max_size = fbytes;
	prtd->cbs.actual_size = fbytes;

	mutex_lock(&the_locks.lock);
	xfer = cad_read(prtd->cad_w_handle, &prtd->cbs);
	mutex_unlock(&the_locks.lock);

	prtd->pcm_buf_pos += fbytes;
	if (xfer < fbytes)
		return -EIO;

	return rc;
}

Example #2

File: msm8k_pcm_in.c Project: drakaz/GalaxoKernel

static ssize_t msm8k_pcm_in_read(struct file *f, char __user *buf, size_t cnt,
		loff_t *pos)
{
	struct pcm			*pcm = f->private_data;
	struct cad_buf_struct_type	cbs;

	D("%s\n", __func__);

	memset(&cbs, 0, sizeof(struct cad_buf_struct_type));
	cbs.buffer = (void *)buf;
	cbs.max_size = cnt;
	cbs.actual_size = cnt;


	cnt = cad_read(pcm->cad_w_handle, &cbs);
	return cnt;
}