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Kernel: Add ioctls to select audio device's output pin

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Bananymous
2026-01-06 21:54:32 +02:00
parent da6794c8ce
commit 8f1b314802
6 changed files with 138 additions and 0 deletions
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4
kernel/include/kernel/Audio/AC97/Controller.h
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@@ -19,6 +19,10 @@ namespace Kernel
uint32_t get_channels() const override { return 2; }
uint32_t get_sample_rate() const override { return 48000; }
uint32_t get_total_pins() const override { return 1; }
uint32_t get_current_pin() const override { return 0; }
BAN::ErrorOr<void> set_current_pin(uint32_t pin) override { if (pin != 0) return BAN::Error::from_errno(EINVAL); return {}; }
private:
AC97AudioController(PCI::Device& pci_device)
: m_pci_device(pci_device)

4
kernel/include/kernel/Audio/Controller.h
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@@ -22,6 +22,10 @@ namespace Kernel
virtual uint32_t get_channels() const = 0;
virtual uint32_t get_sample_rate() const = 0;
virtual uint32_t get_total_pins() const = 0;
virtual uint32_t get_current_pin() const = 0;
virtual BAN::ErrorOr<void> set_current_pin(uint32_t) = 0;
bool can_read_impl() const override { return false; }
bool can_write_impl() const override { SpinLockGuard _(m_spinlock); return m_sample_data_size < m_sample_data_capacity; }
bool has_error_impl() const override { return false; }

6
kernel/include/kernel/Audio/HDAudio/AudioFunctionGroup.h
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@@ -20,6 +20,10 @@ namespace Kernel
uint32_t get_channels() const override { return 2; }
uint32_t get_sample_rate() const override { return 48000; }
uint32_t get_total_pins() const override;
uint32_t get_current_pin() const override;
BAN::ErrorOr<void> set_current_pin(uint32_t) override;
void handle_new_data() override;
private:
@@ -33,7 +37,9 @@ namespace Kernel
BAN::ErrorOr<void> initialize();
BAN::ErrorOr<void> initialize_stream();
BAN::ErrorOr<void> initialize_output();
BAN::ErrorOr<void> enable_output_path(uint8_t index);
BAN::ErrorOr<void> disable_output_path(uint8_t index);
void reset_stream();