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2017-05-23 Fred Gleason <fredg@paravelsystems.com>

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* Added an 'RDMatrix::KernelGpio' element to the 'RDMatrix::Type enum.
	* Implemented a Kernel GPIO switcher driver in 'ripcd/kernelgpio.cpp'
	and 'ripcd/kernelgpio.h'.
This commit is contained in:
Fred Gleason
2017-05-23 10:24:26 -04:00
parent 5d055932b1
commit 3b14fbfa10
12 changed files with 614 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
lib/Makefile.am
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@@ -151,6 +151,7 @@ dist_librd_la_SOURCES = dbversion.h\
rdintegeredit.cpp rdintegeredit.h\
rdintegerdialog.cpp rdintegerdialog.h\
rd.h\
rdkernelgpio.cpp rdkernelgpio.h\
rdlabel.cpp rdlabel.h\
rdlibrary_conf.cpp rdlibrary_conf.h\
rdlicense.cpp rdlicense.h\
@@ -287,6 +288,7 @@ nodist_librd_la_SOURCES = moc_rdadd_cart.cpp\
moc_rdimport_audio.cpp\
moc_rdintegeredit.cpp\
moc_rdintegerdialog.cpp\
moc_rdkernelgpio.cpp\
moc_rdlabel.cpp\
moc_rdlicense.cpp\
moc_rdlineedit.cpp\

2
lib/lib.pro
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@@ -151,6 +151,7 @@ x11 {
SOURCES += rdgroup.cpp
SOURCES += rdhash.cpp
SOURCES += rdimport_audio.cpp
SOURCES += rdkernelgpio.cpp
SOURCES += rdlist_groups.cpp
SOURCES += rdlist_logs.cpp
SOURCES += rdmarker_button.cpp
@@ -286,6 +287,7 @@ x11 {
HEADERS += rdgroup.h
HEADERS += rdhash.h
HEADERS += rdimport_audio.h
HEADERS += rdkernelgpio.h
HEADERS += rdlist_groups.h
HEADERS += rdlist_logs.h
HEADERS += rdmarker_button.h

217
lib/rdkernelgpio.cpp Normal file
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@@ -0,0 +1,217 @@
// rdkernelgpio.cpp
//
// Control Class for the Linux SysFS GPIO Interface
//
// (C) Copyright 2017 Fred Gleason <fredg@paravelsystems.com>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU Library General Public License
// version 2 as published by the Free Software Foundation.
//
// 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; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
#include "rdkernelgpio.h"
RDKernelGpio::RDKernelGpio(QObject *parent)
: QObject(parent)
{
gpio_poll_timer=new QTimer(this);
connect(gpio_poll_timer,SIGNAL(timeout()),this,SLOT(pollData()));
}
RDKernelGpio::~RDKernelGpio()
{
for(unsigned i=0;i<gpio_gpios.size();i++) {
removeGpio(gpio_gpios[i]);
}
delete gpio_poll_timer;
}
bool RDKernelGpio::addGpio(int gpio)
{
FILE *f=NULL;
for(unsigned i=0;i<gpio_gpios.size();i++) {
if(gpio==gpio_gpios[i]) {
return true;
}
}
if((f=OpenNode("export","w"))==NULL) {
return false;
}
fprintf(f,"%u",gpio);
fclose(f);
gpio_gpios.push_back(gpio);
gpio_states.push_back(value(gpio));
if(gpio_gpios.size()==1) {
gpio_poll_timer->start(KERNELGPIO_POLL_INTERVAL);
}
return true;
}
bool RDKernelGpio::removeGpio(int gpio)
{
FILE *f=NULL;
if((f=OpenNode("unexport","w"))==NULL) {
return false;
}
fprintf(f,"%u",gpio);
fclose(f);
return true;
}
RDKernelGpio::Direction RDKernelGpio::direction(int gpio,bool *ok) const
{
RDKernelGpio::Direction ret=RDKernelGpio::In;
FILE *f=NULL;
char str[255];
if((f=OpenNode("direction","r",gpio))!=NULL) {
fscanf(f,"%s",str);
if(QString(str)=="out") {
ret=RDKernelGpio::Out;
}
fclose(f);
if(ok!=NULL) {
*ok=true;
}
}
else {
if(ok!=NULL) {
*ok=false;
}
}
return ret;
}
bool RDKernelGpio::setDirection(int gpio,RDKernelGpio::Direction dir) const
{
FILE *f=NULL;
if((f=OpenNode("direction","w",gpio))!=NULL) {
switch(dir) {
case RDKernelGpio::In:
fprintf(f,"in");
break;
case RDKernelGpio::Out:
fprintf(f,"out");
break;
}
fclose(f);
return true;
}
return false;
}
bool RDKernelGpio::activeLow(int gpio,bool *ok) const
{
unsigned ret=false;
FILE *f=NULL;
if((f=OpenNode("active_low","r",gpio))!=NULL) {
fscanf(f,"%u",&ret);
fclose(f);
if(ok!=NULL) {
*ok=true;
}
}
else {
if(ok!=NULL) {
*ok=false;
}
}
return (bool)ret;
}
bool RDKernelGpio::setActiveLow(int gpio,bool state) const
{
FILE *f=NULL;
if((f=OpenNode("active_low","w",gpio))!=NULL) {
fprintf(f,"%u",state);
fclose(f);
return true;
}
return false;
}
bool RDKernelGpio::value(int gpio,bool *ok) const
{
unsigned ret=false;
FILE *f=NULL;
if((f=OpenNode("value","r",gpio))!=NULL) {
fscanf(f,"%u",&ret);
fclose(f);
if(ok!=NULL) {
*ok=true;
}
}
else {
if(ok!=NULL) {
*ok=false;
}
}
return (bool)ret;
}
bool RDKernelGpio::setValue(int gpio,bool state) const
{
FILE *f=NULL;
if((f=OpenNode("value","w",gpio))!=NULL) {
fprintf(f,"%u",state);
fclose(f);
return true;
}
return false;
}
void RDKernelGpio::pollData()
{
bool state=false;
for(unsigned i=0;i<gpio_gpios.size();i++) {
if((state=value(gpio_gpios[i]))!=gpio_states[i]) {
gpio_states[i]=state;
emit valueChanged(gpio_gpios[i],state);
}
}
}
FILE *RDKernelGpio::OpenNode(const QString &name,const char *mode,int gpio) const
{
if(gpio<0) {
return fopen((KERNELGPIO_SYS_FILE+"/"+name),mode);
}
return fopen((KERNELGPIO_SYS_FILE+QString().sprintf("/gpio%d/",gpio)+name),
mode);
}

71
lib/rdkernelgpio.h Normal file
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@@ -0,0 +1,71 @@
// rdkernelgpio.h
//
// Control Class for the Linux SysFS GPIO Interface
//
// (C) Copyright 2017 Fred Gleason <fredg@paravelsystems.com>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU Library General Public License
// version 2 as published by the Free Software Foundation.
//
// 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; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
#ifndef RDKERNELGPIO_H
#define RDKERNELGPIO_H
#include <stdio.h>
#include <vector>
#include <qobject.h>
#include <qtimer.h>
//
// See https://www.kernel.org/doc/Documentation/gpio/sysfs.txt
// for an explanation of this interface.
//
#define KERNELGPIO_SYS_FILE QString("/sys/class/gpio")
#define KERNELGPIO_POLL_INTERVAL 20
class RDKernelGpio : public QObject
{
Q_OBJECT;
public:
enum Direction {In=0,Out=1};
enum Edge {None=0,Rising=1,Falling=2,Both=3};
RDKernelGpio(QObject *parent=0);
~RDKernelGpio();
bool addGpio(int gpio);
bool removeGpio(int gpio);
Direction direction(int gpio, bool *ok=NULL) const;
bool setDirection(int gpio,Direction dir) const;
bool activeLow(int gpio, bool *ok=NULL) const;
bool setActiveLow(int gpio,bool state) const;
bool value(int gpio,bool *ok=NULL) const;
public slots:
bool setValue(int gpio,bool state) const;
private slots:
void pollData();
signals:
void valueChanged(int gpio,bool state);
private:
FILE *OpenNode(const QString &name,const char *mode,int gpio=-1) const;
std::vector<int> gpio_gpios;
std::vector<bool> gpio_states;
QTimer *gpio_poll_timer;
};
#endif // RDKERNELGPIO_H

13
lib/rdmatrix.cpp
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@@ -67,7 +67,8 @@ bool __mx_primary_controls[RDMatrix::LastType][RDMatrix::LastControl]=
{0,1,0,0,0,0,0,0,1,0,0,1,1,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0}, // Ross NK/SCP
{0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,0,0,0,0,0,0,0,0,0}, // BT ADMS 44.22
{0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,0,0,0,0,0,0,0,0,0}, // BT SS 4.1 MLR
{0,0,1,1,0,0,0,0,0,0,0,0,0,1,1,0,0,0,1,1,0,0,0,0,0,0,0,0,0} // Modbus
{0,0,1,1,0,0,0,0,0,0,0,0,0,1,1,0,0,0,1,1,0,0,0,0,0,0,0,0,0}, // Modbus
{0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,1,1,0,0,0,0,0,0,0,0,0} // Kernel GPIO
};
bool __mx_backup_controls[RDMatrix::LastType][RDMatrix::LastControl]=
{
@@ -111,7 +112,8 @@ bool __mx_backup_controls[RDMatrix::LastType][RDMatrix::LastControl]=
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, // ROSS NK/SCP
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, // BT ADMS 44.22
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, // BT SS 4.1 MLR
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0} // Modbus
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, // Modbus
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0} // Kernel GPIO
};
int __mx_default_values[RDMatrix::LastType][RDMatrix::LastControl]=
@@ -156,7 +158,8 @@ int __mx_default_values[RDMatrix::LastType][RDMatrix::LastControl]=
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0}, // Ross NK/SCP
{0,0,0,0,0,0,0,0,0,0,0,8,2,16,13,0,0,0,0,0,0,0,0,0,0,0,0,1,0}, // BT ADMS 44.22
{0,0,0,0,0,0,0,0,0,0,0,4,1,8,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0}, // BT SS 4.1 MLR
{1,0,0,502,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0} // Modbus
{1,0,0,502,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0}, // Modbus
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0} // Kernel GPIO
};
RDMatrix::RDMatrix(const QString &station,int matrix)
@@ -724,6 +727,10 @@ QString RDMatrix::typeString(RDMatrix::Type type)
return QString("Modbus TCP");
break;
case RDMatrix::KernelGpio:
return QString("Kernel GPIO");
break;
default:
return QString("Unknown Type");
break;

2
lib/rdmatrix.h
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@@ -38,7 +38,7 @@ class RDMatrix
BtSrc16=24,Harlond=25,Acu1p=26,LiveWireMcastGpio=27,Am16=28,
LiveWireLwrpGpio=29,BtSentinel4Web=30,BtGpi16=31,ModemLines=32,
SoftwareAuthority=33,Sas16000=34,RossNkScp=35,BtAdms4422=36,
BtSs41Mlr=37,Modbus=38,LastType=39};
BtSs41Mlr=37,Modbus=38,KernelGpio=39,LastType=40};
enum Endpoint {Input=0,Output=1};
enum Mode {Stereo=0,Left=1,Right=2};
enum VguestAttribute {VguestEngine=0,VguestDevice=1,VguestSurface=2,