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plugins
gpio
GPIODriver.h
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for 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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* GPIODriver.h
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* Uses data in a DMXBuffer to drive GPIO pins.
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* Copyright (C) 2014 Simon Newton
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*/
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#ifndef PLUGINS_GPIO_GPIODRIVER_H_
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#define PLUGINS_GPIO_GPIODRIVER_H_
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#include <stdint.h>
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#include <
ola/DmxBuffer.h
>
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#include <
ola/base/Macro.h
>
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#include <ola/thread/Thread.h>
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#include <vector>
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namespace
ola {
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namespace
plugin {
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namespace
gpio {
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class
GPIODriver
:
private
ola::thread::Thread
{
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public
:
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struct
Options
{
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public
:
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Options
():
start_address
(1),
turn_on
(128),
turn_off
(127) {}
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std::vector<uint8_t>
gpio_pins
;
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uint16_t
start_address
;
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uint8_t
turn_on
;
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uint8_t
turn_off
;
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};
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explicit
GPIODriver
(
const
Options
&options);
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~GPIODriver
();
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bool
Init
();
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std::vector<uint8_t>
PinList
()
const
{
return
m_options.
gpio_pins
; }
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bool
SendDmx
(
const
DmxBuffer
&dmx);
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void
*Run();
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private
:
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enum
GPIOState {
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ON,
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OFF,
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UNDEFINED,
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};
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struct
GPIOPin {
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int
fd;
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GPIOState state;
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bool
last_value;
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};
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typedef
std::vector<GPIOPin> GPIOPins;
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const
Options m_options;
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GPIOPins m_gpio_pins;
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DmxBuffer
m_buffer;
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bool
m_term;
// GUARDED_BY(m_mutex);
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bool
m_dmx_changed;
// GUARDED_BY(m_mutex);
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ola::thread::Mutex
m_mutex;
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ola::thread::ConditionVariable
m_cond;
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bool
SetupGPIO();
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bool
UpdateGPIOPins(
const
DmxBuffer
&dmx);
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void
CloseGPIOFDs();
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static
const
char
GPIO_BASE_DIR[];
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DISALLOW_COPY_AND_ASSIGN(
GPIODriver
);
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};
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}
// namespace gpio
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}
// namespace plugin
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}
// namespace ola
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#endif // PLUGINS_GPIO_GPIODRIVER_H_
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