/*
* TODO If fb is a default kerror output device then a fb should be registered
* before kerror is initialized but there is no obvious way to do that, since
* we definitely want to keep fb constructors in driver files to support
* dynamic loading, in the future, just for example.
*/
int fb_register(struct fb_conf * fb)
{
const int minor = atomic_inc(&fb_minor);
dev_t devid_tty;
dev_t devid_mm;
int err;
devid_tty = DEV_MMTODEV(VDEV_MJNR_FB, minor);
devid_mm = DEV_MMTODEV(VDEV_MJNR_FBMM, minor);
fb_console_init(fb);
err = fb_console_maketty(fb, devid_tty);
if (err) {
KERROR(KERROR_ERR, "FB: maketty failed\n");
return err;
}
err = fb_makemmdev(fb, devid_mm);
if (err) {
KERROR(KERROR_ERR, "FB: makemmdev failed\n");
return err;
}
draw_splash(fb);
fb_console_write(fb, "FB ready\r\n");
return 0;
}
void kmain()
{
irq_disable();
/*
* A primeira coisa a se fazer é iniciar todo o gerenciador
* de memória.
*/
mm_init();
arch_early_init();
ioremap_init();
irq_init();
sched_init();
timer_init();
/*
* Neste momento temos o gerenciador de memória e escalonador prontos,
* já podemos habilitar as interrupções, que podem ser utilizadas
* pelos drivers.
*/
irq_enable();
/* Inicia os drivers da plataforma */
arch_setup();
/* Requisita um modo se existir um framebuffer*/
fb_set_mode();
/* Inicia o console sobre o framebuffer */
fb_console_init();
kernel_info();
#if 1
irq_disable();
semaphore_init(&sem, 1);
create_task("a", 4);
create_task("b", 5);
create_task("c", 6);
create_task("d", 7);
create_task("b", 8);
create_task("b", 9);
irq_enable();
/* Fica de boas esperando as trocas de contexto */
#endif
/* Como queremos imprimir para depuração do driver, inicializamos ele agora */
//bcm2835_emmc_init();
for (;;) {
led_blink();
//printk("-");
}
}
