C++ (Cpp) mdss_mdp_pipe_alloc_dma示例

示例#1

static struct mdss_mdp_pipe *mdss_mdp_rotator_pipe_alloc(void)
{
	struct mdss_mdp_mixer *mixer;
	struct mdss_mdp_pipe *pipe = NULL;

	mixer = mdss_mdp_wb_mixer_alloc(1);
	if (!mixer)
		return NULL;

	pipe = mdss_mdp_pipe_alloc_dma(mixer);

	if (!pipe)
		mdss_mdp_wb_mixer_destroy(mixer);

	return pipe;
}

示例#2

文件： mdss_mdp_rotator.c 项目： scyclzy/kernel_kk443_sense_mec

static struct mdss_mdp_pipe *mdss_mdp_rotator_pipe_alloc(void)
{
	struct mdss_mdp_mixer *mixer;
	struct mdss_mdp_pipe *pipe = NULL;

	mixer = mdss_mdp_wb_mixer_alloc(1);
	if (!mixer) {
		pr_debug("wb mixer alloc failed\n");
		return NULL;
	}

	pipe = mdss_mdp_pipe_alloc_dma(mixer);
	if (!pipe) {
		mdss_mdp_wb_mixer_destroy(mixer);
		pr_debug("dma pipe allocation failed\n");
	}

	return pipe;
}

示例#3

文件： mdss_mdp_rotator.c 项目： greg3d/N9005_Kernel

static struct mdss_mdp_pipe *mdss_mdp_rotator_pipe_alloc(void)
{
	struct mdss_mdp_mixer *mixer;
	struct mdss_mdp_pipe *pipe = NULL;

	mixer = mdss_mdp_wb_mixer_alloc(1);
	if (!mixer) {
		pr_err("wb mixer alloc failed\n");
		return NULL;
	}

	pipe = mdss_mdp_pipe_alloc_dma(mixer);
	if (!pipe) {
		mdss_mdp_wb_mixer_destroy(mixer);
		pr_err("dma pipe allocation failed\n");
		return NULL;
	}
	pipe->mixer_stage = MDSS_MDP_STAGE_UNUSED;
	return pipe;
}