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Kernel+Userland: Add support for using the PCSpeaker with various tones

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Liav A 2023-03-01 22:05:04 +02:00 • committed by Sam Atkins
parent 2d27c98659
commit 11a7e21c2a
9 changed files with 26 additions and 12 deletions
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2
Kernel/Process.h
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@ -291,7 +291,7 @@ public:
ErrorOr<FlatPtr> sys$emuctl();
ErrorOr<FlatPtr> sys$yield();
ErrorOr<FlatPtr> sys$sync();
ErrorOr<FlatPtr> sys$beep();
ErrorOr<FlatPtr> sys$beep(int tone);
ErrorOr<FlatPtr> sys$get_process_name(Userspace<char*> buffer, size_t buffer_size);
ErrorOr<FlatPtr> sys$set_process_name(Userspace<char const*> user_name, size_t user_name_length);
ErrorOr<FlatPtr> sys$create_inode_watcher(u32 flags);

6
Kernel/Syscalls/beep.cpp
View file

@ -12,13 +12,15 @@
namespace Kernel {
ErrorOr<FlatPtr> Process::sys$beep()
ErrorOr<FlatPtr> Process::sys$beep(int tone)
{
VERIFY_NO_PROCESS_BIG_LOCK(this);
if (!kernel_command_line().is_pc_speaker_enabled())
return ENODEV;
if (tone < 20 || tone > 20000)
return EINVAL;
#if ARCH(X86_64)
PCSpeaker::tone_on(440);
PCSpeaker::tone_on(tone);
auto result = Thread::current()->sleep(Time::from_nanoseconds(200'000'000));
PCSpeaker::tone_off();
if (result.was_interrupted())