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/* Free/Libre SMU firmware
* Copyright (C) 2015 Damien Zammit <damien@zamaudio.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*-
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* See <http://www.gnu.org/licenses/>.-
*/
#include "smu.h"
#include "delay.h"
#include "servicereq.h"
void main(void)
{
int i;
int ie;
int e3;
/* disable interrupts */
asm volatile ("rcsr %0,ie":"=r"(ie));
ie &= (~0x1);
asm volatile ("wcsr ie, %0"::"r"(ie));
for (i = 0; i < 32; i++) {
ISREntryTable[i].Callback = 0;
ISREntryTable[i].Context = 0;
}
/* clear all pending interrupts */
asm volatile ("wcsr ip, %0"::"r"(0xffffffff));
/* tell x86 that interrupts are ready */
write32(0xe0003004, INTACK | INTDONE);
write32(0x1f380, 1);
while (1) {
e3 = read32(0xe0003000);
if ((e3 & ~1)) {
write32(0xe0003004, INTACK);
smu_service_request(e3);
write32(0xe0003004, INTACK | INTDONE);
}
mdelay(30);
}
}
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