portapack-mayhem/firmware/application/event_m0.cpp
2016-02-27 21:07:11 -08:00

255 lines
6.2 KiB
C++

/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "event_m0.hpp"
#include "portapack.hpp"
#include "portapack_shared_memory.hpp"
#include "sd_card.hpp"
#include "message.hpp"
#include "message_queue.hpp"
#include "irq_controls.hpp"
#include "ch.h"
#include "lpc43xx_cpp.hpp"
using namespace lpc43xx;
#include <array>
extern "C" {
CH_IRQ_HANDLER(M4Core_IRQHandler) {
CH_IRQ_PROLOGUE();
chSysLockFromIsr();
EventDispatcher::events_flag_isr(EVT_MASK_APPLICATION);
chSysUnlockFromIsr();
creg::m4txevent::clear();
CH_IRQ_EPILOGUE();
}
}
MessageHandlerMap EventDispatcher::message_map_;
Thread* EventDispatcher::thread_event_loop = nullptr;
EventDispatcher::EventDispatcher(
ui::Widget* const top_widget,
ui::Painter& painter,
ui::Context& context
) : top_widget { top_widget },
painter(painter),
context(context)
{
init_message_queues();
thread_event_loop = chThdSelf();
touch_manager.on_event = [this](const ui::TouchEvent event) {
this->on_touch_event(event);
};
}
void EventDispatcher::run() {
creg::m4txevent::enable();
while(is_running) {
const auto events = wait();
dispatch(events);
}
creg::m4txevent::disable();
}
void EventDispatcher::request_stop() {
is_running = false;
}
void EventDispatcher::set_display_sleep(const bool sleep) {
// TODO: Distribute display sleep message more broadly, shut down data generation
// on baseband side, since all that data is being discarded during sleep.
if( sleep ) {
portapack::io.lcd_backlight(false);
portapack::display.sleep();
} else {
portapack::display.wake();
portapack::io.lcd_backlight(true);
}
display_sleep = sleep;
};
eventmask_t EventDispatcher::wait() {
return chEvtWaitAny(ALL_EVENTS);
}
void EventDispatcher::dispatch(const eventmask_t events) {
if( events & EVT_MASK_APPLICATION ) {
handle_application_queue();
}
if( events & EVT_MASK_RTC_TICK ) {
handle_rtc_tick();
}
if( events & EVT_MASK_SWITCHES ) {
handle_switches();
}
if( !display_sleep ) {
if( events & EVT_MASK_LCD_FRAME_SYNC ) {
handle_lcd_frame_sync();
}
if( events & EVT_MASK_ENCODER ) {
handle_encoder();
}
if( events & EVT_MASK_TOUCH ) {
handle_touch();
}
}
}
void EventDispatcher::handle_application_queue() {
shared_memory.application_queue.handle([](Message* const message) {
message_map().send(message);
});
}
void EventDispatcher::handle_rtc_tick() {
sd_card::poll_inserted();
portapack::temperature_logger.second_tick();
}
ui::Widget* EventDispatcher::touch_widget(ui::Widget* const w, ui::TouchEvent event) {
if( !w->hidden() ) {
// To achieve reverse depth ordering (last object drawn is
// considered "top"), descend first.
for(const auto child : w->children()) {
const auto touched_widget = touch_widget(child, event);
if( touched_widget ) {
return touched_widget;
}
}
const auto r = w->screen_rect();
if( r.contains(event.point) ) {
if( w->on_touch(event) ) {
// This widget responded. Return it up the call stack.
return w;
}
}
}
return nullptr;
}
void EventDispatcher::on_touch_event(ui::TouchEvent event) {
/* TODO: Capture widget receiving the Start event, send Move and
* End events to the same widget.
*/
/* Capture Start widget.
* If touch is over Start widget at Move event, then the widget
* should be highlighted. If the touch is not over the Start
* widget at Move event, widget should un-highlight.
* If touch is over Start widget at End event, then the widget
* action should occur.
*/
if( event.type == ui::TouchEvent::Type::Start ) {
captured_widget = touch_widget(this->top_widget, event);
}
if( captured_widget ) {
captured_widget->on_touch(event);
}
}
void EventDispatcher::handle_lcd_frame_sync() {
DisplayFrameSyncMessage message;
message_map().send(&message);
painter.paint_widget_tree(top_widget);
}
void EventDispatcher::handle_switches() {
const auto switches_state = get_switches_state();
if( display_sleep ) {
// Swallow event, wake up display.
if( switches_state.any() ) {
set_display_sleep(false);
}
return;
}
for(size_t i=0; i<switches_state.size(); i++) {
// TODO: Ignore multiple keys at the same time?
if( switches_state[i] ) {
const auto event = static_cast<ui::KeyEvent>(i);
if( !event_bubble_key(event) ) {
context.focus_manager().update(top_widget, event);
}
}
}
}
void EventDispatcher::handle_encoder() {
const uint32_t encoder_now = get_encoder_position();
const int32_t delta = static_cast<int32_t>(encoder_now - encoder_last);
encoder_last = encoder_now;
const auto event = static_cast<ui::EncoderEvent>(delta);
event_bubble_encoder(event);
}
void EventDispatcher::handle_touch() {
touch_manager.feed(get_touch_frame());
}
bool EventDispatcher::event_bubble_key(const ui::KeyEvent event) {
auto target = context.focus_manager().focus_widget();
while( (target != nullptr) && !target->on_key(event) ) {
target = target->parent();
}
/* Return true if event was consumed. */
return (target != nullptr);
}
void EventDispatcher::event_bubble_encoder(const ui::EncoderEvent event) {
auto target = context.focus_manager().focus_widget();
while( (target != nullptr) && !target->on_encoder(event) ) {
target = target->parent();
}
}
void EventDispatcher::init_message_queues() {
new (&shared_memory.baseband_queue) MessageQueue(
shared_memory.baseband_queue_data, SharedMemory::baseband_queue_k
);
new (&shared_memory.application_queue) MessageQueue(
shared_memory.application_queue_data, SharedMemory::application_queue_k
);
}