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/*
* Copyright (C) 2017 Robin Krahl <robin.krahl@ireas.org>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#include <garmos/arch.h>
#include <garmos/types.h>
void irqhdl0x00(void);
void irqhdl0x01(void);
uint8_t irqnos[3] = { 0x20, 0x21, 0 };
uint32_t irqhdls[3] = {
(uint32_t) &irqhdl0x00,
(uint32_t) &irqhdl0x01,
0
};
void prtset8(const uint16_t port, const uint8_t val)
{
asm volatile("outb %0, %1" : : "a" (val), "Nd" (port));
}
void prtset16(const uint16_t port, const uint16_t val)
{
asm volatile("outw %0, %1" : : "a" (val), "Nd" (port));
}
void prtset32(const uint16_t port, const uint32_t val)
{
asm volatile("outl %0, %1" : : "a" (val), "Nd" (port));
}
uint8_t prtget8(const uint16_t port)
{
uint8_t res;
asm volatile("inb %1, %0" : "=a" (res) : "Nd" (port));
return res;
}
uint16_t prtget16(const uint16_t port)
{
uint16_t res;
asm volatile("inw %1, %0" : "=a" (res) : "Nd" (port));
return res;
}
uint32_t prtget32(const uint16_t port)
{
uint32_t res;
asm volatile("inl %1, %0" : "=a" (res) : "Nd" (port));
return res;
}
void regset8(const uint32_t reg, const uint8_t val)
{
volatile uint8_t *p = (volatile uint8_t *) reg;
*p = val;
}
void regset16(const uint32_t reg, const uint16_t val)
{
volatile uint16_t *p = (volatile uint16_t *) reg;
*p = val;
}
void regset32(const uint32_t reg, const uint32_t val)
{
volatile uint32_t *p = (volatile uint32_t *) reg;
*p = val;
}
void gdtset(struct gdtp gdtp)
{
asm volatile("lgdt %0" : : "m" (gdtp));
}
void idtset(struct idtp idtp)
{
asm volatile("lidt %0" : : "m" (idtp));
}
void idtact(void)
{
asm("sti");
}
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