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Kernel: Try to detect Sound Blaster 16 before creating an instance

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We shouldn't create a SB16 instance without checking if the Sound
Blaster 16 card is actually installed in the system.
This commit is contained in:
Liav A 2021-02-05 08:18:46 +02:00 • committed by Andreas Kling
parent 5bb35da784
commit f2faf11d61
3 changed files with 16 additions and 2 deletions
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3
Kernel/Devices/SB16.h
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@ -42,6 +42,7 @@ public:
SB16();
virtual ~SB16() override;
static void detect();
static void create();
static SB16& the();
@ -69,7 +70,7 @@ private:
void dma_start(uint32_t length);
void set_sample_rate(uint16_t hz);
void dsp_write(u8 value);
u8 dsp_read();
static u8 dsp_read();
u8 get_irq_line();
void set_irq_register(u8 irq_number);
void set_irq_line(u8 irq_number);