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#include "../cpu/irq.h"
#include "../drivers/uart.h"
#include "../graphics/lfb.h"
#include "../graphics/drawer.h"
#include "../lib/mem.h"
#include "../lib/strings.h"
#include "../util/time.h"
#include "../util/mutex.h"
#include "../sys/core.h"
#include "../sys/timer.h"
#include "../sys/power.h"
//extern void init_graphics(void);
#ifndef VERSION
char* os_info_v = "?";
#else
char* os_info_v = VERSION;
#endif
// Initialize IRQs
void sysinit() {
// Mask Overrun of UART0
store32(1<<4, UART0_IMSC);
// Enable UART GPU IRQ
store32(1<<25, IRQ_ENABLE2);
// Route GPU interrupts to Core 0
store32(0x00, GPU_INTERRUPTS_ROUTING);
// Enable Timer
// As an IRQ
store32(1<<0, IRQ_BASIC_ENABLE);
// As a FIQ
//store32(0xC0, FIQ_CONTROL);
// Get the frequency
cntfrq = read_cntfrq();
// Clear cntv interrupt and set next 1 second timer
write_cntv_tval(cntfrq);
// Route timer to core0 irq
routing_core0cntv_to_core0irq();
// Enable timer
enable_cntv();
// Graphics Initialize
lfb_init();
lfb_showpicture();
// Enable IRQ & FIQ
enableirq();
enablefiq();
}
void output_irq_status(void) {
// Basic IRQ
unsigned long ib_val = load32(IRQ_BASIC_ENABLE);
// IRQ 1
unsigned long i1_val = load32(IRQ_ENABLE1);
// IRQ 2
unsigned long i2_val = load32(IRQ_ENABLE2);
// FIQ
unsigned long f_val = load32(FIQ_CONTROL);
// Check GPU Interrupt Routing
unsigned long g_val = load32(GPU_INTERRUPTS_ROUTING);
write_string(&g_Drawer, "GPU IRQ: Core ");
write_10(&g_Drawer, g_val & 0b11);
write_string(&g_Drawer, " | GPU FIQ: Core ");
write_10(&g_Drawer, (g_val >> 2) & 0b11);
write_string(&g_Drawer, "\n");
write_hex32(&g_Drawer, ib_val);
write_string(&g_Drawer, " ");
write_hex32(&g_Drawer, i1_val);
write_string(&g_Drawer, " ");
write_hex32(&g_Drawer, i2_val);
write_string(&g_Drawer, " ");
write_hex32(&g_Drawer, f_val);
// Check UART IRQ
write_string(&g_Drawer, "\nUART: ");
if (i2_val & (1<<25)) {
write_cstring(&g_Drawer, "Enabled", 0x00FF00);
} else {
write_cstring(&g_Drawer, "Disabled", 0xFF0000);
}
// Check TIMER IRQ
write_string(&g_Drawer, "\nTIMER: ");
if (ib_val & (1<<0)) {
write_cstring(&g_Drawer, "Enabled", 0x00FF00);
// Output the frequency
write_string(&g_Drawer, " @ ");
unsigned long frq = read_cntfrq()/1000;
write_10(&g_Drawer, frq);
write_string(&g_Drawer, " kHz");
} else {
write_cstring(&g_Drawer, "Disabled", 0xFF0000);
}
write_string(&g_Drawer, "\nTIMER: ");
write_cstring(&g_Drawer, "Enabled", 0x00FF00);
}
void postinit() {
// OS Info
write_cstring(&g_Drawer, "DendritOS", 0xFF0000);
write_cstring(&g_Drawer, " v", 0x00FF00);
write_cstring(&g_Drawer, os_info_v, 0x00FF00);
write_string(&g_Drawer, " #");
if (lock_mutex(&exe_cnt_m, SYS_PID) == 0) {
write_10(&g_Drawer, *(exe_cnt_m.addr));
release_mutex(&exe_cnt_m, SYS_PID);
}
// Commands
write_string(&g_Drawer, "\nMonitor Ctrl-A m Exit: Ctrl-A x");
write_string(&g_Drawer, "\nTimer: Ctrl-T");
// Timer Status
//uart_string("Timer: \033[92mEnabled\033[0m");
// GPU IRQ Statuses
write_string(&g_Drawer, "\n");
output_irq_status();
write_string(&g_Drawer, "\n> ");
}
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