RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 20:07:35 +00:00
Code Issues Activity Actions

Kernel: Allow higher audio sample rates than 65kHZ (u16)

Browse source 
Executing `asctl set r 96000` no longer results in weird sample rates
being set on the audio devices. SB16 checks for a sample rate between 1
and 44100 Hz, while AC97 implements double-rate support which allows
sample rates between 8kHz and 96kHZ.
This commit is contained in:
Jelle Raaijmakers 2021-11-24 12:20:20 +01:00 • committed by Andreas Kling
parent c349634967
commit f97c9a5968
9 changed files with 56 additions and 28 deletions
Download patch file Download diff file Expand all files Collapse all files

7
Kernel/Devices/Audio/SB16.cpp
View file

@ -123,9 +123,10 @@ ErrorOr<void> SB16::ioctl(OpenFileDescription&, unsigned request, Userspace<void
return copy_to_user(output, &m_sample_rate);
}
case SOUNDCARD_IOCTL_SET_SAMPLE_RATE: {
auto sample_rate_value = static_cast<u16>(arg.ptr());
if (sample_rate_value == 0)
return EINVAL;
auto sample_rate_input = static_cast<u32>(arg.ptr());
if (sample_rate_input == 0 || sample_rate_input > 44100)
return ENOTSUP;
auto sample_rate_value = static_cast<u16>(sample_rate_input);
if (m_sample_rate != sample_rate_value)
set_sample_rate(sample_rate_value);
return {};