Merge "CEC : Add validity check methods for some common operands" am: 75ec2dae7d (f21e52e1) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/hdmi/HdmiCecMessageValidator.java

+72 −0

Original line number	Original line	Diff line number	Diff line
	@@ -343,6 +343,78 @@ public class HdmiCecMessageValidator {
	return true;		return true;
	}		}

			/**
			* Check if the given value is a valid day of month. A valid value is one which falls within the
			* range description defined in CEC 1.4 Specification : Operand Descriptions (Section 17)
			*
			* @param value day of month
			* @return true if the day of month is valid
			*/
			private boolean isValidDayOfMonth(int value) {
			return isWithinRange(value, 1, 31);
			}

			/**
			* Check if the given value is a valid month of year. A valid value is one which falls within
			* the range description defined in CEC 1.4 Specification : Operand Descriptions (Section 17)
			*
			* @param value month of year
			* @return true if the month of year is valid
			*/
			private boolean isValidMonthOfYear(int value) {
			return isWithinRange(value, 1, 12);
			}

			/**
			* Check if the given value is a valid hour. A valid value is one which falls within the range
			* description defined in CEC 1.4 Specification : Operand Descriptions (Section 17)
			*
			* @param value hour
			* @return true if the hour is valid
			*/
			private boolean isValidHour(int value) {
			return isWithinRange(value, 0, 23);
			}

			/**
			* Check if the given value is a valid minute. A valid value is one which falls within the range
			* description defined in CEC 1.4 Specification : Operand Descriptions (Section 17)
			*
			* @param value minute
			* @return true if the minute is valid
			*/
			private boolean isValidMinute(int value) {
			return isWithinRange(value, 0, 59);
			}

			/**
			* Check if the given value is a valid duration hours. A valid value is one which falls within
			* the range description defined in CEC 1.4 Specification : Operand Descriptions (Section 17)
			*
			* @param value duration hours
			* @return true if the duration hours is valid
			*/
			private boolean isValidDurationHours(int value) {
			return isWithinRange(value, 0, 99);
			}

			/**
			* Check if the given value is a valid recording sequence. A valid value is adheres to range
			* description defined in CEC 1.4 Specification : Operand Descriptions (Section 17)
			*
			* @param value recording sequence
			* @return true if the given recording sequence is valid
			*/
			private boolean isValidRecordingSequence(int value) {
			value = value & 0xFF;
			// Validate bit 7 is set to zero
			if ((value & 0x80) != 0x00) {
			return false;
			}
			// Validate than not more than one bit is set
			return (Integer.bitCount(value) <= 1);
			}

	private class PhysicalAddressValidator implements ParameterValidator {		private class PhysicalAddressValidator implements ParameterValidator {
	@Override		@Override
	public int isValid(byte[] params) {		public int isValid(byte[] params) {