/*
* Initialises the CMOS RTC driver.
*/
static void* rtc_init(device_t *dev) {
// Read initial RTC values
rtc_read();
// Enable the periodic IRQ
IRQ_OFF();
io_outb(CMOS_REG_PORT, 0x8B);
uint8_t reg = io_inb(CMOS_DATA_PORT);
io_outb(CMOS_REG_PORT, 0x8B);
io_outb(CMOS_DATA_PORT, reg | 0x40);
// Rate is 2 Hz
io_outb(CMOS_REG_PORT, 0x8A);
reg = io_inb(CMOS_DATA_PORT);
io_outb(CMOS_REG_PORT, 0x8A);
io_outb(CMOS_DATA_PORT, (reg & 0xF0) | 0x0F);
// Install IRQ handler
hal_register_irq_handler(8, rtc_sys_tick, NULL);
// Re-enable IRQs
IRQ_RES();
return BUS_NO_INIT_DATA;
}
/*
* Called when all drivers are loaded to attempt legacy ATA probing
*/
static int ata_post_driver_load(void) {
if(ata_drivers_loaded == 0) {
KWARNING("No ATA drivers loaded: attempting legacy init");
// Set up ATA driver (this will probe for devices)
ata_driver_t *ata = ata_init_pci(0, 0, 0, 0, 0);
// List devices found
for (int i = 0; i < 4; i++) {
if (ata->devices[i].drive_exists == true) {
}
}
// Register IRQs 14 and 15 since the controller is in legacy ATA mode
hal_register_irq_handler(14, (void (*)(void *)) ata_irq_callback, ata);
hal_register_irq_handler(15, (void (*)(void *)) ata_irq_callback, ata);
}
return 0;
}
void main()
{
int cnt = 4;
hal_uart_putstr("DURGA has booted \n");
if (hal_mmc_init())
hal_uart_putstr("error initializing mmc !\n");
if (hal_mmc_sdcard_init())
hal_uart_putstr("error initializing sd card !\n");
while(1) {
//toggle usr3 led
hal_usr_led_toggle(3);
hal_delay(1);
if (cnt > 1)
--cnt;
else if (cnt == 1) {
--cnt;
hal_register_irq_handler(RTC_INTR_NUM, rtc_intr_hdlr, NULL);
}
}
}
