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Atmosphere/libraries/libstratosphere/source/wec/wec_api.cpp

113 lines
4.4 KiB
C++

/*
* Copyright (c) Atmosphère-NX
*
* 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/>.
*/
#include <stratosphere.hpp>
namespace ams::wec {
/* TODO: How much of this should be namespaced under BOARD_NINTENDO_NX? */
#if defined(ATMOSPHERE_BOARD_NINTENDO_NX)
namespace {
constexpr inline dd::PhysicalAddress ApbdevPmc = 0x7000E400;
constinit bool g_initialized = false;
void UpdateControlBit(dd::PhysicalAddress phys_addr, u32 mask, bool flag) {
dd::ReadModifyWriteIoRegister(phys_addr, flag ? ~0u : 0u, mask);
dd::ReadIoRegister(phys_addr);
}
void Initialize(bool blink) {
/* Initialize WAKE_DEBOUNCE_EN. */
dd::WriteIoRegister(ApbdevPmc + APBDEV_PMC_WAKE_DEBOUNCE_EN, 0);
dd::ReadIoRegister(ApbdevPmc + APBDEV_PMC_WAKE_DEBOUNCE_EN);
/* Initialize BLINK_TIMER. */
dd::WriteIoRegister(ApbdevPmc + APBDEV_PMC_BLINK_TIMER, 0x08008800);
dd::ReadIoRegister(ApbdevPmc + APBDEV_PMC_BLINK_TIMER);
/* Set control configs. */
UpdateControlBit(ApbdevPmc + APBDEV_PMC_CNTRL, 0x0800, true);
UpdateControlBit(ApbdevPmc + APBDEV_PMC_CNTRL, 0x0400, false);
UpdateControlBit(ApbdevPmc + APBDEV_PMC_CNTRL, 0x0200, true);
UpdateControlBit(ApbdevPmc + APBDEV_PMC_CNTRL, 0x0100, false);
UpdateControlBit(ApbdevPmc + APBDEV_PMC_CNTRL, 0x0040, false);
UpdateControlBit(ApbdevPmc + APBDEV_PMC_CNTRL, 0x0020, false);
UpdateControlBit(ApbdevPmc + APBDEV_PMC_CNTRL2, 0x4000, true);
UpdateControlBit(ApbdevPmc + APBDEV_PMC_CNTRL2, 0x0200, false);
UpdateControlBit(ApbdevPmc + APBDEV_PMC_CNTRL2, 0x0001, true);
/* Update blink bit in APBDEV_PMC_CNTRL. */
UpdateControlBit(ApbdevPmc + APBDEV_PMC_CNTRL, 0x0080, blink);
/* Update blink bit in APBDEV_PMC_DPD_PADS_ORIDE. */
UpdateControlBit(ApbdevPmc + APBDEV_PMC_DPD_PADS_ORIDE, 0x100000, blink);
}
}
void Initialize() {
/* Set initial wake configuration. */
if (!g_initialized) {
Initialize(false);
g_initialized = true;
}
}
void ClearWakeEvents() {
/* TODO */
AMS_ABORT();
}
void WecRestoreForExitSuspend() {
/* TODO */
AMS_ABORT();
}
void SetWakeEventLevel(wec::WakeEvent event, wec::WakeEventLevel level) {
if (g_initialized && event < wec::WakeEvent_Count) {
/* Determine the event index. */
const bool which = static_cast<u32>(event) < BITSIZEOF(u32);
const u32 index = static_cast<u32>(event) & (BITSIZEOF(u32) - 1);
/* Get the level and auto_mask offsets. */
u32 level_ofs = which ? APBDEV_PMC_WAKE_LVL : APBDEV_PMC_WAKE2_LVL;
u32 auto_mask_ofs = which ? APBDEV_PMC_AUTO_WAKE_LVL_MASK : APBDEV_PMC_AUTO_WAKE2_LVL_MASK;
/* If the level isn't auto, swap the offsets. */
if (level != wec::WakeEventLevel_Auto) {
std::swap(level_ofs, auto_mask_ofs);
}
/* Clear the bit in the level register. */
UpdateControlBit(ApbdevPmc + level_ofs, (1u << index), false);
/* Set or clear the bit in the auto mask register. */
UpdateControlBit(ApbdevPmc + auto_mask_ofs, (1u << index), level != wec::WakeEventLevel_Low);
}
}
void SetWakeEventEnabled(wec::WakeEvent event, bool en) {
if (g_initialized && event < wec::WakeEvent_Count) {
/* Set or clear the relevant enabled bit. */
const u32 offset = static_cast<u32>(event) < BITSIZEOF(u32) ? APBDEV_PMC_WAKE_MASK : APBDEV_PMC_WAKE2_MASK;
const u32 index = static_cast<u32>(event) & (BITSIZEOF(u32) - 1);
UpdateControlBit(ApbdevPmc + offset, (1u << index), en);
}
}
#endif
}