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#include "../cpu/irq.h"
#include "../drivers/uart.h"
#include "../graphics/drawer.h"
#include "../sys/core.h"
#include "../sys/timer.h"
#include "../util/mutex.h"
#include "../util/time.h"
extern unsigned long cmdidx;
extern char cmd[2048];
extern void disable_irq(void);
extern void enable_irq(void);
void c_irq_handler(void) {
//disable_irq();
disableirq();
unsigned long source = load32(CORE0_IRQ_SOURCE);
if (source & (1 << 8)) {
if(load32(IRQ_PENDING2) & (1 << 25)) {
if(load32(UART0_MIS) & (1<<4)) {
unsigned long data = load32(UART0_DR);
// Ctrl+Tab to toggle timer
if(data == 0x14) {
unsigned long timer_status;
asm volatile("mrc p15, 0, %0, c14, c3, 1" : "=r"(timer_status));
unsigned int x = g_Drawer.x;
unsigned int y = g_Drawer.y;
g_Drawer.x = 0;
g_Drawer.y = 7;
write_string(&g_Drawer, "TIMER: ");
if(timer_status == 0) {
cntfrq = read_cntfrq();
write_cntv_tval(cntfrq);
enable_cntv();
write_cstring(&g_Drawer, "Enabled ", 0x00FF00);
} else {
disable_cntv();
write_cstring(&g_Drawer, "Disabled", 0xFF0000);
}
g_Drawer.x = x;
g_Drawer.y = y;
} else {
unsigned long off = cmdidx;
if (off < 2048) {
// Newline Case
if (data == 0x0D) {
off = 0;
cmd[0] = 0x0;
uart_char(data);
uart_string("\033[?25l> \033[0K\033[?25h");
// Backspace Case
} else if (data == 0x08 || data == 0x7F) {
if (off > 0) {
off -= 1;
}
cmd[off] = 0x0;
uart_char((unsigned char)data);
uart_char(0x20);
uart_char((unsigned char)data);
// Lock Case
} else if (data == 0x6C) {
uart_char((unsigned char)data);
cmd[off] = (char) data;
off += 1;
lock_mutex(&exe_cnt_m, SCHED_PID);
// Release Case
} else if (data == 0x72) {
uart_char((unsigned char)data);
cmd[off] = (char) data;
off += 1;
release_mutex(&exe_cnt_m, SCHED_PID);
// Else output
} else {
uart_char((unsigned char)data);
cmd[off] = (char) data;
off += 1;
}
} else if (off == 2048) {
if (data == 0x0D) {
off = 0;
cmd[0] = 0x0;
//uart_char(0x0a);
uart_char(data);
uart_string("\033[?25l> \033[0K\033[?25h");
} else if (data == 0x08 || data == 0x7F) {
if (off > 0) {
off -= 1;
}
cmd[off] = 0x0;
uart_char((unsigned char)data);
uart_char(0x20);
uart_char((unsigned char)data);
}
}
cmdidx = off;
//store32(off, (unsigned long*) cmdidx);
uart_string("\033[?25l\033[9;1H\033[0K");
uart_10(off);
uart_string("\n\033[0K");
uart_string(cmd);
uart_string("\033[?25h\033[8;1H> ");
}
//enable_irq();
enableirq();
return;
}
}
} else if (source & (1 << 3)) {
c_timer();
//enable_irq();
enableirq();
return;
}
return;
}
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