Atmosphere/libraries/libvapours/source/sdmmc/impl/sdmmc_device_detector.hpp
SciresM 166318ba77
sdmmc: implement driver suitable for fs + bootloader
* sdmmc: begin skeletoning sdmmc driver

* sdmmc: add most of SdHostStandardController

* sdmmc: implement most of SdmmcController

* sdmmc: Sdmmc2Controller

* sdmmc: skeleton implementation of Sdmmc1Controller

* sdmmc: complete abstract logic for Sdmmc1 power controller

* sdmmc: implement gpio handling for sdmmc1-register-control

* sdmmc: implement pinmux handling for sdmmc1-register-control

* sdmmc: fix building for arm32 and in stratosphere context

* sdmmc: implement voltage enable/set for sdmmc1-register-control

* util: move T(V)SNPrintf from kernel to util

* sdmmc: implement BaseDeviceAccessor

* sdmmc: implement MmcDeviceAccessor

* sdmmc: implement clock reset controller for register api

* sdmmc: fix bug in WaitWhileCommandInhibit, add mmc accessors

* exo: add sdmmc test program

* sdmmc: fix speed mode extension, add CheckMmcConnection for debug

* sdmmc: add DeviceDetector, gpio: implement client api

* gpio: modernize client api instead of doing it the lazy way

* sdmmc: SdCardDeviceAccessor impl

* sdmmc: update test program to read first two sectors of sd card

* sdmmc: fix vref sel

* sdmmc: finish outward-facing api (untested)

* ams: changes for libvapours including tegra register defs

* sdmmc: remove hwinit
2020-10-30 11:54:30 -07:00

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/*
* Copyright (c) 2018-2020 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/>.
*/
#pragma once
#include <vapours.hpp>
#if defined(AMS_SDMMC_USE_SD_CARD_DETECTOR)
#include <stratosphere.hpp>
namespace ams::sdmmc::impl {
using InsertedCallback = void (*)(void *);
using RemovedCallback = void (*)(void *);
struct CallbackInfo {
InsertedCallback inserted_callback;
void *inserted_callback_arg;
RemovedCallback removed_callback;
void *removed_callback_arg;
};
class DeviceDetector {
private:
enum State {
State_Initializing = 0,
State_Awake = 1,
State_Sleep = 2,
State_Finalized = 3,
};
private:
alignas(os::ThreadStackAlignment) u8 detector_thread_stack[8_KB];
State state;
bool is_prev_inserted;
bool force_detection;
os::ThreadType detector_thread;
os::EventType detector_thread_end_event;
os::EventType request_sleep_wake_event;
os::EventType acknowledge_sleep_awake_event;
os::EventType ready_device_status_event;
DeviceCode gpio_device_code;
gpio::GpioValue inserted_gpio_value;
u32 gpio_debounce_ms;
gpio::GpioPadSession gpio_pad_session;
CallbackInfo callback_info;
DeviceDetectionEventCallback device_detection_event_callback;
void *device_detection_event_callback_arg;
private:
static void DetectorThreadEntry(void *arg) {
reinterpret_cast<DeviceDetector *>(arg)->DetectorThread();
}
void DetectorThread();
bool IsCurrentInserted();
void HandleDeviceStatus(bool prev_inserted, bool cur_inserted);
public:
explicit DeviceDetector(DeviceCode dc, gpio::GpioValue igv, u32 gd)
: gpio_device_code(dc), inserted_gpio_value(igv), gpio_debounce_ms(gd)
{
this->state = State_Finalized;
this->is_prev_inserted = false;
this->force_detection = false;
this->callback_info = {};
this->device_detection_event_callback = nullptr;
this->device_detection_event_callback_arg = nullptr;
}
void Initialize(CallbackInfo *ci);
void Finalize();
void PutToSleep();
void Awaken(bool force_det);
u32 GetDebounceMilliSeconds() const {
return this->gpio_debounce_ms;
}
bool IsInserted();
void RegisterDetectionEventCallback(DeviceDetectionEventCallback cb, void *arg);
void UnregisterDetectionEventCallback();
};
}
#endif