C++ (Cpp) get_new_cmd_id_ind示例

示例#1

文件： hdcp.c 项目： igloocommunity/hdmiservice

/* Get current hdcp state */
int hdcp_state(void)
{
	int hdcpstateget;
	int result = HDCP_OK;
	int res;
	__u8 buf[128];
	int val;
	__u32 cmd_id;

	cmd_id = get_new_cmd_id_ind();

	/* Check hdcpstate */
	hdcpstateget = open(HDCPSTATEGET_FILE, O_RDONLY);
	if (hdcpstateget < 0) {
		LOGHDMILIB("***** Failed to open %s *****",
				HDCPSTATEGET_FILE);
		result = SYSFS_FILE_FAILED;
		goto hdcp_state_end;
	}
	res = read(hdcpstateget, buf, sizeof(buf));
	close(hdcpstateget);
	if (res != 1) {
		LOGHDMILIB("***** %s read error *****",
				HDCPSTATEGET_FILE);
		result = HDCPSTATE_FAIL;
		goto hdcp_state_end;
	}

	val = HDMI_HDCPSTATE;
	memcpy(&buf[CMD_OFFSET], &val, 4);
	memcpy(&buf[CMDID_OFFSET], &cmd_id, 4);
	val = 1;
	memcpy(&buf[CMDLEN_OFFSET], &val, 4);
	memcpy(&buf[CMDBUF_OFFSET], buf, val);

	/* Send on socket */
	if (clientsocket_send(buf, CMDBUF_OFFSET + val) != 0)
		result = HDCPSTATE_FAIL;

	LOGHDMILIB("%s", dbg_hdcpstate(val));

hdcp_state_end:
	return result;
}

示例#2

文件： cec.c 项目： Meticulus/vendor_st-ericsson_u8500

/* Read received CEC message and forward on client socket */
int cecrx(void)
{
	int cecreadfd;
	__u8 buf[32];
	__u8 cecdata[32];
	int cecsize;
	int cnt;
	int val;
	int res = 0;
	__u32 cmd_id;

	LOGHDMILIB("%s begin", __func__);

	cmd_id = get_new_cmd_id_ind();
	cecreadfd = open(CECREAD_FILE, O_RDONLY);
	if (cecreadfd < 0) {
		LOGHDMILIBE("***** Failed to open %s *****", CECREAD_FILE);
		return -1;
	}
	cecsize = read(cecreadfd, buf, sizeof(buf));
	close(cecreadfd);

	if (cecsize < 0)
		return -1;

	for (cnt = 0; cnt < cecsize; cnt++)
		LOGHDMILIB2("cecrx[%d]:%x", cnt, buf[cnt]);

	val = HDMI_CECRECVD;
	memcpy(&buf[CMD_OFFSET], &val, 4);
	memcpy(&buf[CMDID_OFFSET], &cmd_id, 4);
	val = cecsize;
	memcpy(&buf[CMDLEN_OFFSET], &val, 4);
	memcpy(&buf[CMDBUF_OFFSET], cecdata, val);

	/* Send on socket */
	res = clientsocket_send(buf, CMDBUF_OFFSET + val);

	LOGHDMILIB("%s end", __func__);
	return res;
}