77 lines
2.3 KiB
C++
77 lines
2.3 KiB
C++
/*
|
|
* Copyright (c) Souldbminer, Lightos and Horizon OC Contributors
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope 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/>.
|
|
*
|
|
*/
|
|
|
|
#pragma once
|
|
#include "defs.hpp"
|
|
|
|
#define MMIO32(addr) (*reinterpret_cast<volatile u32 *>(addr))
|
|
|
|
constexpr u32 FwRamStart = 0x40004000;
|
|
constexpr u32 FwRamEnd = 0x4000C000;
|
|
constexpr u32 WorkRamStart = FwRamEnd;
|
|
constexpr u32 WorkRamEnd = 0x40010000;
|
|
|
|
constexpr u32 FlowCtlrBase = 0x60007000;
|
|
constexpr u32 FlowCtlrHaltCopEvents = 0x004;
|
|
|
|
constexpr u32 HaltModeWaitEvent = (2u << 29);
|
|
constexpr u32 HaltUsec = (0u << 24);
|
|
|
|
[[maybe_unused]] inline void FlowCtlrHaltUsec(u32 usec) {
|
|
MMIO32(FlowCtlrBase + FlowCtlrHaltCopEvents) = HaltModeWaitEvent | HaltUsec | (usec & 0xFFFFFFu);
|
|
}
|
|
|
|
constexpr u32 TmrBase = 0x60005000;
|
|
constexpr u32 TimerUsCntr1Us = 0x10;
|
|
|
|
[[maybe_unused]] inline void usleep(u32 us) {
|
|
const u32 start = MMIO32(TmrBase + TimerUsCntr1Us);
|
|
while ((MMIO32(TmrBase + TimerUsCntr1Us) - start) <= us)
|
|
;
|
|
}
|
|
|
|
constexpr u32 UartBBase = 0x70006040;
|
|
constexpr u32 UartThr = 0x00;
|
|
constexpr u32 UartLsr = 0x14;
|
|
constexpr u32 UartLsrThre = (1u << 5);
|
|
constexpr u32 UartLsrTmty = (1u << 6);
|
|
|
|
inline void UartPutc(char c) {
|
|
while (!(MMIO32(UartBBase + UartLsr) & UartLsrThre))
|
|
;
|
|
MMIO32(UartBBase + UartThr) = static_cast<u32>(static_cast<u8>(c));
|
|
}
|
|
|
|
// Waits for the byte to be fully transmitted
|
|
inline void UartFlush() {
|
|
while (!(MMIO32(UartBBase + UartLsr) & UartLsrTmty))
|
|
;
|
|
}
|
|
|
|
inline void UartPuts(const char *s) {
|
|
while (*s) {
|
|
UartPutc(*s++);
|
|
}
|
|
}
|
|
|
|
inline void UartPutHex32(u32 v) {
|
|
static const char digits[] = "0123456789ABCDEF";
|
|
for (int i = 28; i >= 0; i -= 4) {
|
|
UartPutc(digits[(v >> i) & 0xF]);
|
|
}
|
|
}
|