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kernel, driver/ps2: move decoding from kMain to interrupt handler

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This commit is contained in:
Edgaru089 2021-10-28 18:28:31 +08:00
parent 94ab9ffb41
commit 93907ef477
2 changed files with 20 additions and 18 deletions
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20
driver/irq/pic/ps2/ps2.c
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@ -7,6 +7,7 @@
#include "../../../../runtime/panic_assert.h"
#include "../../../../runtime/stdio.h"
#include "../../../../graphics/graphics.h"
#include "../../../../driver/input/source.h"
bool irq_pic_ps2_HasMouse;
@ -88,4 +89,23 @@ SYSV_ABI void irq_pic_ps2_IRQHandlerK() {
SYSV_ABI void irq_pic_ps2_IRQHandlerM() {
queue_PushByte(&irq_pic_ps2_QueueMouse, inb(IRQ_PIC_PS2_IOPORT));
while (queue_Size(&irq_pic_ps2_QueueMouse) && !(queue_FrontByte(&irq_pic_ps2_QueueMouse) & (1u << 3)))
queue_PopByte(&irq_pic_ps2_QueueMouse);
while (queue_Size(&irq_pic_ps2_QueueMouse) >= (irq_pic_ps2_Mouse4Bytes ? 4 : 3)) {
unsigned int moveX, moveY, state;
state = queue_PopByte(&irq_pic_ps2_QueueMouse);
unsigned int d = queue_PopByte(&irq_pic_ps2_QueueMouse);
moveX = d - ((state << 4) & 0x100);
d = queue_PopByte(&irq_pic_ps2_QueueMouse);
moveY = d - ((state << 3) & 0x100);
input_source_MoveMouse(moveX, -moveY);
if (irq_pic_ps2_Mouse4Bytes)
queue_PopByte(&irq_pic_ps2_QueueMouse);
}
}

18
kernel/kmain.c
View File

@ -74,24 +74,6 @@ SYSV_ABI void kMain() {
for (;;) {
asm volatile("hlt");
while (queue_Size(&irq_pic_ps2_QueueMouse) >= (irq_pic_ps2_Mouse4Bytes ? 4 : 3)) {
unsigned int moveX, moveY, state;
do {
state = queue_PopByte(&irq_pic_ps2_QueueMouse);
} while (!(state & (1u << 3)));
unsigned int d = queue_PopByte(&irq_pic_ps2_QueueMouse);
moveX = d - ((state << 4) & 0x100);
d = queue_PopByte(&irq_pic_ps2_QueueMouse);
moveY = d - ((state << 3) & 0x100);
input_source_MoveMouse(moveX, -moveY);
if (irq_pic_ps2_Mouse4Bytes)
queue_PopByte(&irq_pic_ps2_QueueMouse);
}
//io_WriteConsoleASCII("kMain: Interrupt hit\n");
graphics_SwapBuffer();
}