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Remove unnecessary prefixes
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parent
91c323b7c8
commit
5784f88df5
1 changed files with 16 additions and 16 deletions
32
arch/pic.c
32
arch/pic.c
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@ -3,37 +3,37 @@
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#include "logger.h"
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#include "logger.h"
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#include "asm.h"
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#include "asm.h"
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#define PIC_MASTER_COMMAND 0x20
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#define MASTER_COMMAND 0x20
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#define PIC_MASTER_DATA 0x21
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#define MASTER_DATA 0x21
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#define PIC_SLAVE_COMMAND 0xA0
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#define SLAVE_COMMAND 0xA0
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#define PIC_SLAVE_DATA 0xA1
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#define SLAVE_DATA 0xA1
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void pic_remap(const unsigned char master_irq_start, const unsigned char slave_irq_start)
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void pic_remap(const unsigned char master_irq_start, const unsigned char slave_irq_start)
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{
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{
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logger_info_from("pic", "Remap the IRQ table.");
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logger_info_from("pic", "Remap the IRQ table.");
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// Save masks
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// Save masks
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unsigned char master_mask = inportb(PIC_MASTER_DATA);
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unsigned char master_mask = inportb(MASTER_DATA);
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unsigned char slave_mask = inportb(PIC_SLAVE_DATA);
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unsigned char slave_mask = inportb(SLAVE_DATA);
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// Start the initialization sequence
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// Start the initialization sequence
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outportb(PIC_MASTER_COMMAND, 0x11);
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outportb(MASTER_COMMAND, 0x11);
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outportb(PIC_SLAVE_COMMAND, 0x11);
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outportb(SLAVE_COMMAND, 0x11);
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// Set IRQ vectors
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// Set IRQ vectors
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outportb(PIC_MASTER_DATA, master_irq_start);
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outportb(MASTER_DATA, master_irq_start);
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outportb(PIC_SLAVE_DATA, slave_irq_start);
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outportb(SLAVE_DATA, slave_irq_start);
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// Connect master and slave with each other
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// Connect master and slave with each other
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outportb(PIC_MASTER_DATA, 0x04);
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outportb(MASTER_DATA, 0x04);
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outportb(PIC_SLAVE_DATA, 0x02);
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outportb(SLAVE_DATA, 0x02);
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// 8086/88 (MCS-80/85) mode
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// 8086/88 (MCS-80/85) mode
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outportb(PIC_MASTER_DATA, 0x01);
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outportb(MASTER_DATA, 0x01);
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outportb(PIC_SLAVE_DATA, 0x01);
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outportb(SLAVE_DATA, 0x01);
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// Restore masks
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// Restore masks
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outportb(PIC_MASTER_DATA, master_mask);
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outportb(MASTER_DATA, master_mask);
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outportb(PIC_SLAVE_DATA, slave_mask);
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outportb(SLAVE_DATA, slave_mask);
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}
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}
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