104 lines
2.4 KiB
C++
104 lines
2.4 KiB
C++
/*
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* \brief Input-driver
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* \author Stefan Kalkowski
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* \date 2013-03-15
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*/
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/*
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* Copyright (C) 2013-2015 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _DRIVER_H_
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#define _DRIVER_H_
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/* Genode includes */
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#include <base/env.h>
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#include <base/signal.h>
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#include <gpio_session/connection.h>
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/* local includes */
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#include <egalax_ts.h>
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#include <mpr121.h>
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namespace Input {
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class Tablet_driver;
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}
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class Input::Tablet_driver
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{
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private:
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enum Gpio_irqs {
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GPIO_TOUCH = 84,
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GPIO_BUTTON = 132,
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};
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Event_queue &_ev_queue;
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Gpio::Connection _gpio_ts;
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Gpio::Connection _gpio_bt;
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Genode::Irq_session_client _irq_ts;
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Genode::Irq_session_client _irq_bt;
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Genode::Signal_rpc_member<Tablet_driver> _ts_dispatcher;
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Genode::Signal_rpc_member<Tablet_driver> _bt_dispatcher;
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Touchscreen _touchscreen;
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Buttons _buttons;
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void _handle_ts(unsigned)
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{
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_touchscreen.event(_ev_queue);
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_irq_ts.ack_irq();
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}
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void _handle_bt(unsigned)
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{
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_buttons.event(_ev_queue);
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_irq_bt.ack_irq();
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}
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Tablet_driver(Server::Entrypoint &ep, Event_queue &ev_queue)
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:
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_ev_queue(ev_queue),
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_gpio_ts(GPIO_TOUCH),
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_gpio_bt(GPIO_BUTTON),
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_irq_ts(_gpio_ts.irq_session(Gpio::Session::LOW_LEVEL)),
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_irq_bt(_gpio_bt.irq_session(Gpio::Session::FALLING_EDGE)),
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_ts_dispatcher(ep, *this, &Tablet_driver::_handle_ts),
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_bt_dispatcher(ep, *this, &Tablet_driver::_handle_bt),
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_touchscreen(ep), _buttons(ep)
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{
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/* GPIO touchscreen handling */
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_gpio_ts.direction(Gpio::Session::OUT);
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_gpio_ts.write(true);
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_gpio_ts.direction(Gpio::Session::IN);
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_irq_ts.sigh(_ts_dispatcher);
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_irq_ts.ack_irq();
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/* GPIO button handling */
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_gpio_bt.direction(Gpio::Session::OUT);
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_gpio_bt.write(true);
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_gpio_bt.direction(Gpio::Session::IN);
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_irq_bt.sigh(_bt_dispatcher);
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_irq_bt.ack_irq();
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}
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public:
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static Tablet_driver* factory(Server::Entrypoint &ep, Event_queue &ev_queue);
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};
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Input::Tablet_driver* Input::Tablet_driver::factory(Server::Entrypoint &ep,
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Event_queue &ev_queue)
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{
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static Input::Tablet_driver driver(ep, ev_queue);
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return &driver;
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}
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#endif /* _DRIVER_H_ */
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