8259 PIC: Difference between revisions
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m Changed "unsigned char" to "uint8_t" |
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#define PIC_EOI 0x20 /* End-of-interrupt command code */ |
#define PIC_EOI 0x20 /* End-of-interrupt command code */ |
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void PIC_sendEOI( |
void PIC_sendEOI(uint8_t irq) |
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{ |
{ |
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if(irq >= 8) |
if(irq >= 8) |
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void PIC_remap(int offset1, int offset2) |
void PIC_remap(int offset1, int offset2) |
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{ |
{ |
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uint8_t a1, a2; |
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a1 = inb(PIC1_DATA); // save masks |
a1 = inb(PIC1_DATA); // save masks |
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Here is an example of how to mask an IRQ: |
Here is an example of how to mask an IRQ: |
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<source lang="C"> |
<source lang="C"> |
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void IRQ_set_mask( |
void IRQ_set_mask(uint8_t IRQline) { |
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uint16_t port; |
uint16_t port; |
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uint8_t value; |
uint8_t value; |
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} |
} |
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void IRQ_clear_mask( |
void IRQ_clear_mask(uint8_t IRQline) { |
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uint16_t port; |
uint16_t port; |
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uint8_t value; |
uint8_t value; |
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