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#include <framebuffer.h>
#include <mailbox.h>
#include <mmio.h>
#include <raspi.h>
#include <string.h>
#include <uart.h>
#include <stdint.h>
static void halt() {
while (1) {
asm volatile("wfi"); // Wait for interrupt. Core enters low-power state.
}
}
void main() {
bool success = true;
uint32_t error = -1;
char buf[32];
const int raspi = raspi_init();
mmio_init(raspi); // Must be initialized before other peripherals.
mbox_init();
uart_init(raspi);
uart_print("Initializing framebuffer\n");
success = framebuffer_init(&error);
if (!success) {
uart_print("Failed to initialize framebuffer:\n");
if (error == MAILBOX_DELIVERY_ERROR) {
uart_print("MAILBOX_DELIVERY_ERROR\n");
} else if (error == MAILBOX_ERROR) {
uart_print("MAILBOX_ERROR\n");
}
goto end;
}
const Framebuffer* fb = framebuffer_get();
uart_print("Framebuffer:");
uart_print("\n width: ");
uart_print(utoa(fb->width, buf, sizeof(buf)));
uart_print("\n height: ");
uart_print(utoa(fb->height, buf, sizeof(buf)));
uart_print("\n depth: ");
uart_print(utoa(fb->depth, buf, sizeof(buf)));
uart_print("\n addr: ");
uart_print(ptoa(fb->pixels, buf, sizeof(buf)));
uart_print("\n size: ");
uart_print(utoa(fb->size, buf, sizeof(buf)));
uart_print("\n");
uart_print("Clearing framebuffer\n");
framebuffer_clear((Pixel){255, 0, 255});
uart_print("All done\n");
end:
halt();
}
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