mirror of https://github.com/encounter/SDL.git
112 lines
3.0 KiB
C
112 lines
3.0 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#if !defined(SDL_POWER_DISABLED) && defined(SDL_POWER_N3DS)
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#include <3ds.h>
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#include "SDL_error.h"
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#include "SDL_power.h"
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SDL_FORCE_INLINE SDL_PowerState GetPowerState(void);
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SDL_FORCE_INLINE int ReadStateFromPTMU(bool *is_plugged, u8 *is_charging);
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SDL_FORCE_INLINE int GetBatteryPercentage(void);
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#define BATTERY_PERCENT_REG 0xB
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#define BATTERY_PERCENT_REG_SIZE 2
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SDL_bool
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SDL_GetPowerInfo_N3DS(SDL_PowerState *state, int *seconds, int *percent)
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{
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*state = GetPowerState();
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*percent = GetBatteryPercentage();
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*seconds = -1; /* libctru doesn't provide a way to estimate battery life */
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return SDL_TRUE;
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}
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SDL_FORCE_INLINE SDL_PowerState
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GetPowerState(void)
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{
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bool is_plugged;
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u8 is_charging;
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if (ReadStateFromPTMU(&is_plugged, &is_charging) < 0) {
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return SDL_POWERSTATE_UNKNOWN;
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}
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if (is_charging) {
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return SDL_POWERSTATE_CHARGING;
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}
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if (is_plugged) {
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return SDL_POWERSTATE_CHARGED;
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}
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return SDL_POWERSTATE_ON_BATTERY;
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}
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SDL_FORCE_INLINE int
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ReadStateFromPTMU(bool *is_plugged, u8 *is_charging)
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{
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if (R_FAILED(ptmuInit())) {
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return SDL_SetError("Failed to initialise PTMU service");
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}
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if (R_FAILED(PTMU_GetAdapterState(is_plugged))) {
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ptmuExit();
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return SDL_SetError("Failed to read adapter state");
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}
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if (R_FAILED(PTMU_GetBatteryChargeState(is_charging))) {
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ptmuExit();
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return SDL_SetError("Failed to read battery charge state");
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}
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ptmuExit();
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return 0;
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}
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SDL_FORCE_INLINE int
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GetBatteryPercentage(void)
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{
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u8 data[BATTERY_PERCENT_REG_SIZE];
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if (R_FAILED(mcuHwcInit())) {
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return SDL_SetError("Failed to initialise mcuHwc service");
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}
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if (R_FAILED(MCUHWC_ReadRegister(BATTERY_PERCENT_REG, data, BATTERY_PERCENT_REG_SIZE))) {
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mcuHwcExit();
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return SDL_SetError("Failed to read battery register");
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}
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mcuHwcExit();
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return (int) SDL_round(data[0] + data[1] / 256.0);
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}
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#endif /* !SDL_POWER_DISABLED && SDL_POWER_N3DS */
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/* vi: set sts=4 ts=4 sw=4 expandtab: */
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