hyperion.ng/libsrc/leddevice/LedDevicePiBlaster.cpp

173 lines
3.5 KiB
C++
Raw Normal View History

// STL includes
#include <cerrno>
#include <cstring>
Piblaster fix (#614) * Removed -HUP so the default -TERM signal is sent instead. - hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config Changed pgrep to add '-x' so it wont partial match on the exe name. - I have multiple instances with multiple hyperiond-instance1 names - this ensures the service script only kills the right process * reversing errant change to hyperion.systemd.sh * Experimental changes to piblaster code to work how i think it should It is now assumed that the PWM pins in groups of 3 correspond to RGB channels of the led. "assignment" : "rgbrgbrgb", Would result in: //Channel number GPIO number Led channel // 0 4 0 red // 1 17 0 green // 2 18 0 blue // 4 27 1 red // 5 21 1 green // 6 22 1 blue // 7 23 2 red // 8 24 2 green // 9 25 2 blue * Ammend pwm channel mapping comments to match the code * 1st cut of the new more flexible piblaster pin mapping support it works but is still rough * removed old "assignment" handling - prints an error messaage if found and terminates fixed the switchoff method * removing iPins hard coded list of valid GPIO pins * removed iPins array for switchOff function * code cleanups input validation * Handle catching (and ignoring) SIGPIPE. You can now kill and restart pi-blaster daemon and hyperiond will gracefully recover * added a binary for testing * Added sample config and my modified pi-blaster version to support more GPIOs * moved hyperiond * removed testing binaries move sample configuration to the configs directory * re enabled device config display * removed sample configuration Former-commit-id: 95e4d4ea2fb7cb5439e8cd597883a638da61a574
2016-04-29 16:00:33 +02:00
#include <csignal>
// jsoncpp includes
#include <json/json.h>
// QT includes
#include <QFile>
// Local LedDevice includes
#include "LedDevicePiBlaster.h"
Piblaster fix (#614) * Removed -HUP so the default -TERM signal is sent instead. - hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config Changed pgrep to add '-x' so it wont partial match on the exe name. - I have multiple instances with multiple hyperiond-instance1 names - this ensures the service script only kills the right process * reversing errant change to hyperion.systemd.sh * Experimental changes to piblaster code to work how i think it should It is now assumed that the PWM pins in groups of 3 correspond to RGB channels of the led. "assignment" : "rgbrgbrgb", Would result in: //Channel number GPIO number Led channel // 0 4 0 red // 1 17 0 green // 2 18 0 blue // 4 27 1 red // 5 21 1 green // 6 22 1 blue // 7 23 2 red // 8 24 2 green // 9 25 2 blue * Ammend pwm channel mapping comments to match the code * 1st cut of the new more flexible piblaster pin mapping support it works but is still rough * removed old "assignment" handling - prints an error messaage if found and terminates fixed the switchoff method * removing iPins hard coded list of valid GPIO pins * removed iPins array for switchOff function * code cleanups input validation * Handle catching (and ignoring) SIGPIPE. You can now kill and restart pi-blaster daemon and hyperiond will gracefully recover * added a binary for testing * Added sample config and my modified pi-blaster version to support more GPIOs * moved hyperiond * removed testing binaries move sample configuration to the configs directory * re enabled device config display * removed sample configuration Former-commit-id: 95e4d4ea2fb7cb5439e8cd597883a638da61a574
2016-04-29 16:00:33 +02:00
LedDevicePiBlaster::LedDevicePiBlaster(const std::string & deviceName, const Json::Value & gpioMapping) :
_deviceName(deviceName),
_fid(nullptr)
{
Piblaster fix (#614) * Removed -HUP so the default -TERM signal is sent instead. - hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config Changed pgrep to add '-x' so it wont partial match on the exe name. - I have multiple instances with multiple hyperiond-instance1 names - this ensures the service script only kills the right process * reversing errant change to hyperion.systemd.sh * Experimental changes to piblaster code to work how i think it should It is now assumed that the PWM pins in groups of 3 correspond to RGB channels of the led. "assignment" : "rgbrgbrgb", Would result in: //Channel number GPIO number Led channel // 0 4 0 red // 1 17 0 green // 2 18 0 blue // 4 27 1 red // 5 21 1 green // 6 22 1 blue // 7 23 2 red // 8 24 2 green // 9 25 2 blue * Ammend pwm channel mapping comments to match the code * 1st cut of the new more flexible piblaster pin mapping support it works but is still rough * removed old "assignment" handling - prints an error messaage if found and terminates fixed the switchoff method * removing iPins hard coded list of valid GPIO pins * removed iPins array for switchOff function * code cleanups input validation * Handle catching (and ignoring) SIGPIPE. You can now kill and restart pi-blaster daemon and hyperiond will gracefully recover * added a binary for testing * Added sample config and my modified pi-blaster version to support more GPIOs * moved hyperiond * removed testing binaries move sample configuration to the configs directory * re enabled device config display * removed sample configuration Former-commit-id: 95e4d4ea2fb7cb5439e8cd597883a638da61a574
2016-04-29 16:00:33 +02:00
signal(SIGPIPE, SIG_IGN);
// initialise the mapping tables
// -1 is invalid
// z is also meaningless
// { "gpio" : 4, "ledindex" : 0, "ledcolor" : "r" },
#define TABLE_SZ sizeof(_gpio_to_led)/sizeof(_gpio_to_led[0])
for (unsigned i=0; i < TABLE_SZ; i++ )
Piblaster fix (#614) * Removed -HUP so the default -TERM signal is sent instead. - hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config Changed pgrep to add '-x' so it wont partial match on the exe name. - I have multiple instances with multiple hyperiond-instance1 names - this ensures the service script only kills the right process * reversing errant change to hyperion.systemd.sh * Experimental changes to piblaster code to work how i think it should It is now assumed that the PWM pins in groups of 3 correspond to RGB channels of the led. "assignment" : "rgbrgbrgb", Would result in: //Channel number GPIO number Led channel // 0 4 0 red // 1 17 0 green // 2 18 0 blue // 4 27 1 red // 5 21 1 green // 6 22 1 blue // 7 23 2 red // 8 24 2 green // 9 25 2 blue * Ammend pwm channel mapping comments to match the code * 1st cut of the new more flexible piblaster pin mapping support it works but is still rough * removed old "assignment" handling - prints an error messaage if found and terminates fixed the switchoff method * removing iPins hard coded list of valid GPIO pins * removed iPins array for switchOff function * code cleanups input validation * Handle catching (and ignoring) SIGPIPE. You can now kill and restart pi-blaster daemon and hyperiond will gracefully recover * added a binary for testing * Added sample config and my modified pi-blaster version to support more GPIOs * moved hyperiond * removed testing binaries move sample configuration to the configs directory * re enabled device config display * removed sample configuration Former-commit-id: 95e4d4ea2fb7cb5439e8cd597883a638da61a574
2016-04-29 16:00:33 +02:00
{
_gpio_to_led[i] = -1;
_gpio_to_color[i] = 'z';
}
// walk through the json config and populate the mapping tables
for (const Json::Value& gpioMap : gpioMapping)
{
const int gpio = gpioMap.get("gpio",-1).asInt();
const int ledindex = gpioMap.get("ledindex",-1).asInt();
const std::string ledcolor = gpioMap.get("ledcolor","z").asString();
Piblaster fix (#614) * Removed -HUP so the default -TERM signal is sent instead. - hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config Changed pgrep to add '-x' so it wont partial match on the exe name. - I have multiple instances with multiple hyperiond-instance1 names - this ensures the service script only kills the right process * reversing errant change to hyperion.systemd.sh * Experimental changes to piblaster code to work how i think it should It is now assumed that the PWM pins in groups of 3 correspond to RGB channels of the led. "assignment" : "rgbrgbrgb", Would result in: //Channel number GPIO number Led channel // 0 4 0 red // 1 17 0 green // 2 18 0 blue // 4 27 1 red // 5 21 1 green // 6 22 1 blue // 7 23 2 red // 8 24 2 green // 9 25 2 blue * Ammend pwm channel mapping comments to match the code * 1st cut of the new more flexible piblaster pin mapping support it works but is still rough * removed old "assignment" handling - prints an error messaage if found and terminates fixed the switchoff method * removing iPins hard coded list of valid GPIO pins * removed iPins array for switchOff function * code cleanups input validation * Handle catching (and ignoring) SIGPIPE. You can now kill and restart pi-blaster daemon and hyperiond will gracefully recover * added a binary for testing * Added sample config and my modified pi-blaster version to support more GPIOs * moved hyperiond * removed testing binaries move sample configuration to the configs directory * re enabled device config display * removed sample configuration Former-commit-id: 95e4d4ea2fb7cb5439e8cd597883a638da61a574
2016-04-29 16:00:33 +02:00
// ignore missing/invalid settings
if ( (gpio >= 0) && (gpio < signed(TABLE_SZ)) && (ledindex >= 0) ){
Piblaster fix (#614) * Removed -HUP so the default -TERM signal is sent instead. - hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config Changed pgrep to add '-x' so it wont partial match on the exe name. - I have multiple instances with multiple hyperiond-instance1 names - this ensures the service script only kills the right process * reversing errant change to hyperion.systemd.sh * Experimental changes to piblaster code to work how i think it should It is now assumed that the PWM pins in groups of 3 correspond to RGB channels of the led. "assignment" : "rgbrgbrgb", Would result in: //Channel number GPIO number Led channel // 0 4 0 red // 1 17 0 green // 2 18 0 blue // 4 27 1 red // 5 21 1 green // 6 22 1 blue // 7 23 2 red // 8 24 2 green // 9 25 2 blue * Ammend pwm channel mapping comments to match the code * 1st cut of the new more flexible piblaster pin mapping support it works but is still rough * removed old "assignment" handling - prints an error messaage if found and terminates fixed the switchoff method * removing iPins hard coded list of valid GPIO pins * removed iPins array for switchOff function * code cleanups input validation * Handle catching (and ignoring) SIGPIPE. You can now kill and restart pi-blaster daemon and hyperiond will gracefully recover * added a binary for testing * Added sample config and my modified pi-blaster version to support more GPIOs * moved hyperiond * removed testing binaries move sample configuration to the configs directory * re enabled device config display * removed sample configuration Former-commit-id: 95e4d4ea2fb7cb5439e8cd597883a638da61a574
2016-04-29 16:00:33 +02:00
_gpio_to_led[gpio] = ledindex;
_gpio_to_color[gpio] = ledcolor[0]; // 1st char of string
} else {
Warning( _log, "IGNORING gpio %d ledindex %d color %c", gpio,ledindex, ledcolor[0]);
Piblaster fix (#614) * Removed -HUP so the default -TERM signal is sent instead. - hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config Changed pgrep to add '-x' so it wont partial match on the exe name. - I have multiple instances with multiple hyperiond-instance1 names - this ensures the service script only kills the right process * reversing errant change to hyperion.systemd.sh * Experimental changes to piblaster code to work how i think it should It is now assumed that the PWM pins in groups of 3 correspond to RGB channels of the led. "assignment" : "rgbrgbrgb", Would result in: //Channel number GPIO number Led channel // 0 4 0 red // 1 17 0 green // 2 18 0 blue // 4 27 1 red // 5 21 1 green // 6 22 1 blue // 7 23 2 red // 8 24 2 green // 9 25 2 blue * Ammend pwm channel mapping comments to match the code * 1st cut of the new more flexible piblaster pin mapping support it works but is still rough * removed old "assignment" handling - prints an error messaage if found and terminates fixed the switchoff method * removing iPins hard coded list of valid GPIO pins * removed iPins array for switchOff function * code cleanups input validation * Handle catching (and ignoring) SIGPIPE. You can now kill and restart pi-blaster daemon and hyperiond will gracefully recover * added a binary for testing * Added sample config and my modified pi-blaster version to support more GPIOs * moved hyperiond * removed testing binaries move sample configuration to the configs directory * re enabled device config display * removed sample configuration Former-commit-id: 95e4d4ea2fb7cb5439e8cd597883a638da61a574
2016-04-29 16:00:33 +02:00
}
}
}
LedDevicePiBlaster::~LedDevicePiBlaster()
{
// Close the device (if it is opened)
if (_fid != nullptr)
{
fclose(_fid);
_fid = nullptr;
}
}
int LedDevicePiBlaster::open(bool report)
{
if (_fid != nullptr)
{
// The file pointer is already open
if (report)
{
Error( _log, "Device (%s) is already open.", _deviceName.c_str() );
}
return -1;
}
if (!QFile::exists(_deviceName.c_str()))
{
if (report)
{
Error( _log, "The device (%s) does not yet exist.", _deviceName.c_str() );
}
return -1;
}
_fid = fopen(_deviceName.c_str(), "w");
if (_fid == nullptr)
{
if (report)
{
Error( _log, "Failed to open device (%s). Error message: %s", _deviceName.c_str(), strerror(errno) );
}
return -1;
}
Info( _log, "Connected to device(%s)", _deviceName.c_str());
return 0;
}
int LedDevicePiBlaster::write(const std::vector<ColorRgb> & ledValues)
{
// Attempt to open if not yet opened
if (_fid == nullptr && open(false) < 0)
{
return -1;
}
Piblaster fix (#614) * Removed -HUP so the default -TERM signal is sent instead. - hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config Changed pgrep to add '-x' so it wont partial match on the exe name. - I have multiple instances with multiple hyperiond-instance1 names - this ensures the service script only kills the right process * reversing errant change to hyperion.systemd.sh * Experimental changes to piblaster code to work how i think it should It is now assumed that the PWM pins in groups of 3 correspond to RGB channels of the led. "assignment" : "rgbrgbrgb", Would result in: //Channel number GPIO number Led channel // 0 4 0 red // 1 17 0 green // 2 18 0 blue // 4 27 1 red // 5 21 1 green // 6 22 1 blue // 7 23 2 red // 8 24 2 green // 9 25 2 blue * Ammend pwm channel mapping comments to match the code * 1st cut of the new more flexible piblaster pin mapping support it works but is still rough * removed old "assignment" handling - prints an error messaage if found and terminates fixed the switchoff method * removing iPins hard coded list of valid GPIO pins * removed iPins array for switchOff function * code cleanups input validation * Handle catching (and ignoring) SIGPIPE. You can now kill and restart pi-blaster daemon and hyperiond will gracefully recover * added a binary for testing * Added sample config and my modified pi-blaster version to support more GPIOs * moved hyperiond * removed testing binaries move sample configuration to the configs directory * re enabled device config display * removed sample configuration Former-commit-id: 95e4d4ea2fb7cb5439e8cd597883a638da61a574
2016-04-29 16:00:33 +02:00
int valueIdx = -1;
for (unsigned int i=0; i < TABLE_SZ; i++ )
{
Piblaster fix (#614) * Removed -HUP so the default -TERM signal is sent instead. - hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config Changed pgrep to add '-x' so it wont partial match on the exe name. - I have multiple instances with multiple hyperiond-instance1 names - this ensures the service script only kills the right process * reversing errant change to hyperion.systemd.sh * Experimental changes to piblaster code to work how i think it should It is now assumed that the PWM pins in groups of 3 correspond to RGB channels of the led. "assignment" : "rgbrgbrgb", Would result in: //Channel number GPIO number Led channel // 0 4 0 red // 1 17 0 green // 2 18 0 blue // 4 27 1 red // 5 21 1 green // 6 22 1 blue // 7 23 2 red // 8 24 2 green // 9 25 2 blue * Ammend pwm channel mapping comments to match the code * 1st cut of the new more flexible piblaster pin mapping support it works but is still rough * removed old "assignment" handling - prints an error messaage if found and terminates fixed the switchoff method * removing iPins hard coded list of valid GPIO pins * removed iPins array for switchOff function * code cleanups input validation * Handle catching (and ignoring) SIGPIPE. You can now kill and restart pi-blaster daemon and hyperiond will gracefully recover * added a binary for testing * Added sample config and my modified pi-blaster version to support more GPIOs * moved hyperiond * removed testing binaries move sample configuration to the configs directory * re enabled device config display * removed sample configuration Former-commit-id: 95e4d4ea2fb7cb5439e8cd597883a638da61a574
2016-04-29 16:00:33 +02:00
valueIdx = _gpio_to_led[ i ];
if ( (valueIdx >= 0) && (valueIdx < (signed) ledValues.size()) )
{
Piblaster fix (#614) * Removed -HUP so the default -TERM signal is sent instead. - hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config Changed pgrep to add '-x' so it wont partial match on the exe name. - I have multiple instances with multiple hyperiond-instance1 names - this ensures the service script only kills the right process * reversing errant change to hyperion.systemd.sh * Experimental changes to piblaster code to work how i think it should It is now assumed that the PWM pins in groups of 3 correspond to RGB channels of the led. "assignment" : "rgbrgbrgb", Would result in: //Channel number GPIO number Led channel // 0 4 0 red // 1 17 0 green // 2 18 0 blue // 4 27 1 red // 5 21 1 green // 6 22 1 blue // 7 23 2 red // 8 24 2 green // 9 25 2 blue * Ammend pwm channel mapping comments to match the code * 1st cut of the new more flexible piblaster pin mapping support it works but is still rough * removed old "assignment" handling - prints an error messaage if found and terminates fixed the switchoff method * removing iPins hard coded list of valid GPIO pins * removed iPins array for switchOff function * code cleanups input validation * Handle catching (and ignoring) SIGPIPE. You can now kill and restart pi-blaster daemon and hyperiond will gracefully recover * added a binary for testing * Added sample config and my modified pi-blaster version to support more GPIOs * moved hyperiond * removed testing binaries move sample configuration to the configs directory * re enabled device config display * removed sample configuration Former-commit-id: 95e4d4ea2fb7cb5439e8cd597883a638da61a574
2016-04-29 16:00:33 +02:00
double pwmDutyCycle = 0.0;
switch (_gpio_to_color[ i ])
{
case 'r':
pwmDutyCycle = ledValues[valueIdx].red / 255.0;
break;
case 'g':
pwmDutyCycle = ledValues[valueIdx].green / 255.0;
break;
case 'b':
pwmDutyCycle = ledValues[valueIdx].blue / 255.0;
break;
case 'w':
pwmDutyCycle = ledValues[valueIdx].red;
pwmDutyCycle += ledValues[valueIdx].green;
pwmDutyCycle += ledValues[valueIdx].blue;
pwmDutyCycle /= (3.0*255.0);
break;
default:
continue;
}
// fprintf(_fid, "%i=%f\n", iPins[iPin], pwmDutyCycle);
if ( (fprintf(_fid, "%i=%f\n", i, pwmDutyCycle) < 0)
|| (fflush(_fid) < 0)) {
if (_fid != nullptr)
{
fclose(_fid);
_fid = nullptr;
return -1;
}
}
}
}
return 0;
}
int LedDevicePiBlaster::switchOff()
{
// Attempt to open if not yet opened
if (_fid == nullptr && open(false) < 0)
{
return -1;
}
Piblaster fix (#614) * Removed -HUP so the default -TERM signal is sent instead. - hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config Changed pgrep to add '-x' so it wont partial match on the exe name. - I have multiple instances with multiple hyperiond-instance1 names - this ensures the service script only kills the right process * reversing errant change to hyperion.systemd.sh * Experimental changes to piblaster code to work how i think it should It is now assumed that the PWM pins in groups of 3 correspond to RGB channels of the led. "assignment" : "rgbrgbrgb", Would result in: //Channel number GPIO number Led channel // 0 4 0 red // 1 17 0 green // 2 18 0 blue // 4 27 1 red // 5 21 1 green // 6 22 1 blue // 7 23 2 red // 8 24 2 green // 9 25 2 blue * Ammend pwm channel mapping comments to match the code * 1st cut of the new more flexible piblaster pin mapping support it works but is still rough * removed old "assignment" handling - prints an error messaage if found and terminates fixed the switchoff method * removing iPins hard coded list of valid GPIO pins * removed iPins array for switchOff function * code cleanups input validation * Handle catching (and ignoring) SIGPIPE. You can now kill and restart pi-blaster daemon and hyperiond will gracefully recover * added a binary for testing * Added sample config and my modified pi-blaster version to support more GPIOs * moved hyperiond * removed testing binaries move sample configuration to the configs directory * re enabled device config display * removed sample configuration Former-commit-id: 95e4d4ea2fb7cb5439e8cd597883a638da61a574
2016-04-29 16:00:33 +02:00
int valueIdx = -1;
for (unsigned int i=0; i < TABLE_SZ; i++ )
{
Piblaster fix (#614) * Removed -HUP so the default -TERM signal is sent instead. - hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config Changed pgrep to add '-x' so it wont partial match on the exe name. - I have multiple instances with multiple hyperiond-instance1 names - this ensures the service script only kills the right process * reversing errant change to hyperion.systemd.sh * Experimental changes to piblaster code to work how i think it should It is now assumed that the PWM pins in groups of 3 correspond to RGB channels of the led. "assignment" : "rgbrgbrgb", Would result in: //Channel number GPIO number Led channel // 0 4 0 red // 1 17 0 green // 2 18 0 blue // 4 27 1 red // 5 21 1 green // 6 22 1 blue // 7 23 2 red // 8 24 2 green // 9 25 2 blue * Ammend pwm channel mapping comments to match the code * 1st cut of the new more flexible piblaster pin mapping support it works but is still rough * removed old "assignment" handling - prints an error messaage if found and terminates fixed the switchoff method * removing iPins hard coded list of valid GPIO pins * removed iPins array for switchOff function * code cleanups input validation * Handle catching (and ignoring) SIGPIPE. You can now kill and restart pi-blaster daemon and hyperiond will gracefully recover * added a binary for testing * Added sample config and my modified pi-blaster version to support more GPIOs * moved hyperiond * removed testing binaries move sample configuration to the configs directory * re enabled device config display * removed sample configuration Former-commit-id: 95e4d4ea2fb7cb5439e8cd597883a638da61a574
2016-04-29 16:00:33 +02:00
valueIdx = _gpio_to_led[ i ];
if (valueIdx >= 0)
{
Piblaster fix (#614) * Removed -HUP so the default -TERM signal is sent instead. - hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config Changed pgrep to add '-x' so it wont partial match on the exe name. - I have multiple instances with multiple hyperiond-instance1 names - this ensures the service script only kills the right process * reversing errant change to hyperion.systemd.sh * Experimental changes to piblaster code to work how i think it should It is now assumed that the PWM pins in groups of 3 correspond to RGB channels of the led. "assignment" : "rgbrgbrgb", Would result in: //Channel number GPIO number Led channel // 0 4 0 red // 1 17 0 green // 2 18 0 blue // 4 27 1 red // 5 21 1 green // 6 22 1 blue // 7 23 2 red // 8 24 2 green // 9 25 2 blue * Ammend pwm channel mapping comments to match the code * 1st cut of the new more flexible piblaster pin mapping support it works but is still rough * removed old "assignment" handling - prints an error messaage if found and terminates fixed the switchoff method * removing iPins hard coded list of valid GPIO pins * removed iPins array for switchOff function * code cleanups input validation * Handle catching (and ignoring) SIGPIPE. You can now kill and restart pi-blaster daemon and hyperiond will gracefully recover * added a binary for testing * Added sample config and my modified pi-blaster version to support more GPIOs * moved hyperiond * removed testing binaries move sample configuration to the configs directory * re enabled device config display * removed sample configuration Former-commit-id: 95e4d4ea2fb7cb5439e8cd597883a638da61a574
2016-04-29 16:00:33 +02:00
fprintf(_fid, "%i=%f\n", i, 0.0);
fflush(_fid);
}
}
return 0;
}