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Started working on PCSpeaker api docs

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This commit is contained in:
Elia Sulimanov 2020-06-17 22:57:05 +03:00
parent 8295dcef12
commit c9d82b5eef
1 changed files with 19 additions and 0 deletions
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19
source/Cosmos.HAL2/PCSpeaker.cs
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@ -22,16 +22,27 @@ namespace Cosmos.HAL
protected static Core.IOGroup.PCSpeaker IO = BaseIOGroups.PCSpeaker;
private static PIT SpeakerPIT = new PIT();
/// <summary>
/// Enable sound.
/// </summary>
private static void EnableSound()
{
IO.Gate.Byte = (byte)(IO.Gate.Byte | 0x03);
}
/// <summary>
/// Disable sound.
/// </summary>
private static void DisableSound()
{
IO.Gate.Byte = (byte)(IO.Gate.Byte & ~3);
//IO.Port61.Byte = (byte)(IO.Port61.Byte | 0xFC);
}
/// <summary>
/// Play beep sound, at a specified frequency for a specified duration.
/// </summary>
/// <param name="frequency">Audio frequency in Hz, must be between 37 and 32767Hz.</param>
/// <exception cref="ArgumentOutOfRangeException">Thrown if frequency is invalid.</exception>
public static void Beep(uint frequency)
{
if (frequency < 37 || frequency > 32767)
@ -51,6 +62,14 @@ namespace Cosmos.HAL
}
EnableSound();
}
// TODO: continue exception list, once HAL is documented.
/// <summary>
/// Play beep sound, at a specified frequency for a specified duration.
/// </summary>
/// <param name="frequency">Audio frequency in Hz, must be between 37 and 32767Hz.</param>
/// <param name="duration">Beep duration, must be > 0.</param>
/// <exception cref="ArgumentOutOfRangeException">Thrown if duration or frequency invalid.</exception>
public static void Beep(uint frequency, uint duration)
{
if (duration <= 0)