Wolfvak 30f0b004c2 fixed screen init, hopefully the last commmit
- properly performs gpu/backlight reset

- nukes vram so the initrd had to be moved to arm9 memory, and have its size (at least temporarily) limited to 256k
2020-07-18 20:25:34 -03:00

60 lines
1.4 KiB
C
Executable File

/*
* This file is part of GodMode9
* Copyright (C) 2019 d0k3, Wolfvak
*
* 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 2 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <types.h>
#include <pxi.h>
void PXI_Barrier(u8 barrier_id)
{
PXI_SetRemote(barrier_id);
PXI_WaitRemote(barrier_id);
}
void PXI_Reset(void)
{
*PXI_SYNC_IRQ = 0;
*PXI_CNT = PXI_CNT_SEND_FIFO_FLUSH | PXI_CNT_ENABLE_FIFO;
for (int i = 0; i < PXI_FIFO_LEN; i++)
*PXI_RECV;
*PXI_CNT = 0;
*PXI_CNT = PXI_CNT_RECV_FIFO_AVAIL_IRQ | PXI_CNT_ENABLE_FIFO |
PXI_CNT_ACKNOWLEDGE_ERROR;
PXI_SetRemote(0xFF);
}
void PXI_SendArray(const u32 *w, u32 c)
{
while(c--)
PXI_Send(*(w++));
}
void PXI_RecvArray(u32 *w, u32 c)
{
while(c--)
*(w++) = PXI_Recv();
}
u32 PXI_DoCMD(u32 cmd, const u32 *args, u32 argc)
{
PXI_Send((argc << 16) | cmd);
PXI_SendArray(args, argc);
return PXI_Recv();
}