mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-11-13 00:26:35 +00:00
229 lines
8.9 KiB
C++
229 lines
8.9 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <exosphere.hpp>
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#include "max77620.h"
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#include "max7762x.h"
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namespace ams::pmic {
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namespace {
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constexpr inline int I2cAddressEristaMax77621 = 0x1B;
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constexpr inline int I2cAddressMarikoMax77812_A = 0x31;
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constexpr inline int I2cAddressMarikoMax77812_B = 0x33;
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constexpr inline int I2cAddressMax77620Pmic = 0x3C;
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/* https://github.com/Atmosphere-NX/Atmosphere/blob/master/emummc/source/power/max77620.h */
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/* https://github.com/Atmosphere-NX/Atmosphere/blob/master/emummc/source/power/max7762x.h */
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/* TODO: Find datasheet, link to it instead. */
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/* NOTE: Tentatively, Max77620 "mostly" matches https://datasheets.maximintegrated.com/en/ds/MAX77863.pdf. */
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/* This does not contain Max77621 documentation, though. */
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constexpr inline int Max77620RegisterOnOffStat = 0x15;
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constexpr inline int Max77620RegisterGpio0 = 0x36;
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constexpr inline int Max77620RegisterAmeGpio = 0x40;
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constexpr inline int Max77620RegisterOnOffCnfg1 = 0x41;
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constexpr inline int Max77621RegisterVOut = 0x00;
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constexpr inline int Max77621RegisterVOutDvc = 0x01;
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constexpr inline int Max77621RegisterControl1 = 0x02;
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constexpr inline int Max77621RegisterControl2 = 0x03;
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/* https://datasheets.maximintegrated.com/en/ds/MAX77812.pdf */
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constexpr inline int Max77812RegisterEnCtrl = 0x06;
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constexpr inline int Max77812RegisterM4VOut = 0x26;
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void Max77620EnableGpio(int gpio) {
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u8 val;
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/* Clear the AE for the GPIO */
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if (i2c::Query(std::addressof(val), sizeof(val), i2c::Port_5, I2cAddressEristaMax77621, Max77620RegisterAmeGpio)) {
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val &= ~(1 << gpio);
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i2c::SendByte(i2c::Port_5, I2cAddressEristaMax77621, Max77620RegisterAmeGpio, val);
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}
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/* Set GPIO_DRV_PUSHPULL (bit 0), GPIO_OUTPUT_VAL_HIGH (bit 3). */
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i2c::SendByte(i2c::Port_5, I2cAddressEristaMax77621, Max77620RegisterGpio0 + gpio, MAX77620_CNFG_GPIO_DRV_PUSHPULL | MAX77620_CNFG_GPIO_OUTPUT_VAL_HIGH);
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}
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void SetEnBitErista() {
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i2c::SendByte(i2c::Port_5, I2cAddressEristaMax77621, Max77621RegisterVOut, MAX77621_VOUT_ENABLE);
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}
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void EnableVddCpuErista() {
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/* Enable GPIO 5. */
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/* TODO: What does this control? */
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Max77620EnableGpio(5);
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/* Configure Max77621 control registers. */
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i2c::SendByte(i2c::Port_5, I2cAddressEristaMax77621, Max77621RegisterControl1, MAX77621_AD_ENABLE | MAX77621_NFSR_ENABLE | MAX77621_SNS_ENABLE | MAX77621_RAMP_12mV_PER_US);
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i2c::SendByte(i2c::Port_5, I2cAddressEristaMax77621, Max77621RegisterControl2, MAX77621_T_JUNCTION_120 | MAX77621_WDTMR_ENABLE | MAX77621_CKKADV_TRIP_75mV_PER_US| MAX77621_INDUCTOR_NOMINAL);
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/* Configure Max77621 VOut to 0.95v */
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i2c::SendByte(i2c::Port_5, I2cAddressEristaMax77621, Max77621RegisterVOut, MAX77621_VOUT_ENABLE | MAX77621_VOUT_0_95V);
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i2c::SendByte(i2c::Port_5, I2cAddressEristaMax77621, Max77621RegisterVOutDvc, MAX77621_VOUT_ENABLE | MAX77621_VOUT_0_95V);
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}
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void DisableVddCpuErista() {
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/* Disable Max77621 VOut. */
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i2c::SendByte(i2c::Port_5, I2cAddressEristaMax77621, Max77621RegisterVOut, MAX77621_VOUT_DISABLE);
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}
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int GetI2cAddressForMarikoMax77812(Regulator regulator) {
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switch (regulator) {
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case Regulator_Mariko_Max77812_A: return I2cAddressMarikoMax77812_A;
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case Regulator_Mariko_Max77812_B: return I2cAddressMarikoMax77812_B;
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AMS_UNREACHABLE_DEFAULT_CASE();
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}
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}
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void SetEnBitMariko(Regulator regulator) {
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/* Set EN_M3_LPM to enable BUCK Master 3 low power mode. */
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i2c::SendByte(i2c::Port_5, GetI2cAddressForMarikoMax77812(regulator), Max77812RegisterEnCtrl, 0x40);
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}
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void EnableVddCpuMariko(Regulator regulator) {
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const int address = GetI2cAddressForMarikoMax77812(regulator);
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/* Set EN_M3_LPM to enable BUCK Master 3 low power mode. */
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u8 ctrl;
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if (i2c::Query(std::addressof(ctrl), sizeof(ctrl), i2c::Port_5, address, Max77812RegisterEnCtrl)) {
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ctrl |= 0x40;
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i2c::SendByte(i2c::Port_5, address, Max77812RegisterEnCtrl, ctrl);
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}
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/* Set BUCK Master 4 output voltage to 110. */
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i2c::SendByte(i2c::Port_5, address, Max77812RegisterM4VOut, 110);
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}
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void DisableVddCpuMariko(Regulator regulator) {
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const int address = GetI2cAddressForMarikoMax77812(regulator);
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/* Clear EN_M3_LPM to disable BUCK Master 3 low power mode. */
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u8 ctrl;
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if (i2c::Query(std::addressof(ctrl), sizeof(ctrl), i2c::Port_5, address, Max77812RegisterEnCtrl)) {
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ctrl &= ~0x40;
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i2c::SendByte(i2c::Port_5, address, Max77812RegisterEnCtrl, ctrl);
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}
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}
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u8 GetPmicOnOffStat() {
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return i2c::QueryByte(i2c::Port_5, I2cAddressMax77620Pmic, Max77620RegisterOnOffStat);
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}
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void ShutdownSystemImpl(bool reboot) {
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/* Get value, set or clear software reset mask. */
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u8 on_off_2_val = i2c::QueryByte(i2c::Port_5, I2cAddressMax77620Pmic, MAX77620_REG_ONOFFCNFG2);
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if (reboot) {
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on_off_2_val |= MAX77620_ONOFFCNFG2_SFT_RST_WK;
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} else {
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on_off_2_val &= ~(MAX77620_ONOFFCNFG2_SFT_RST_WK);
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}
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i2c::SendByte(i2c::Port_5, I2cAddressMax77620Pmic, MAX77620_REG_ONOFFCNFG2, on_off_2_val);
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/* Get value, set software reset mask. */
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u8 on_off_1_val = i2c::QueryByte(i2c::Port_5, I2cAddressMax77620Pmic, MAX77620_REG_ONOFFCNFG1);
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on_off_1_val |= MAX77620_ONOFFCNFG1_SFT_RST;
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/* NOTE: Here, userland finalizes the battery on non-Calcio. */
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if (fuse::GetHardwareType() != fuse::HardwareType_Calcio) {
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/* ... */
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}
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/* Actually write the value to trigger shutdown/reset. */
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i2c::SendByte(i2c::Port_5, I2cAddressMax77620Pmic, MAX77620_REG_ONOFFCNFG1, on_off_1_val);
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}
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}
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void SetEnBit(Regulator regulator) {
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switch (regulator) {
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case Regulator_Erista_Max77621:
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return SetEnBitErista();
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case Regulator_Mariko_Max77812_A:
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case Regulator_Mariko_Max77812_B:
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return SetEnBitMariko(regulator);
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AMS_UNREACHABLE_DEFAULT_CASE();
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}
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}
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void EnableVddCpu(Regulator regulator) {
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switch (regulator) {
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case Regulator_Erista_Max77621:
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return EnableVddCpuErista();
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case Regulator_Mariko_Max77812_A:
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case Regulator_Mariko_Max77812_B:
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return EnableVddCpuMariko(regulator);
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AMS_UNREACHABLE_DEFAULT_CASE();
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}
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}
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void DisableVddCpu(Regulator regulator) {
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switch (regulator) {
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case Regulator_Erista_Max77621:
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return DisableVddCpuErista();
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case Regulator_Mariko_Max77812_A:
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case Regulator_Mariko_Max77812_B:
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return DisableVddCpuMariko(regulator);
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AMS_UNREACHABLE_DEFAULT_CASE();
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}
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}
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void EnableSleep() {
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/* Get the current onoff cfg. */
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u8 cnfg = i2c::QueryByte(i2c::Port_5, I2cAddressMax77620Pmic, Max77620RegisterOnOffCnfg1);
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/* Set SlpEn. */
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cnfg |= MAX77620_ONOFFCNFG1_SLPEN;
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/* Write the new cfg. */
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i2c::SendByte(i2c::Port_5, I2cAddressMax77620Pmic, Max77620RegisterOnOffCnfg1, cnfg);
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}
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void ShutdownSystem(bool reboot) {
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ShutdownSystemImpl(reboot);
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/* Allow up to 5 seconds for shutdown/reboot to take place. */
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util::WaitMicroSeconds(5'000'000ul);
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AMS_ABORT("Shutdown failed");
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}
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void PowerOff() {
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ShutdownSystemImpl(false);
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}
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bool IsAcOk() {
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return (GetPmicOnOffStat() & (1 << 1)) != 0;
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}
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bool IsPowerButtonPressed() {
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return (GetPmicOnOffStat() & (1 << 2)) != 0;
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}
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void SetSystemSetting() {
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/* TODO */
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}
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void EnableVddCore() {
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/* TODO */
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}
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void EnableLdo8() {
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/* TODO */
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}
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}
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