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Added "invert" and "spimode" options to ws2801, ws2812spi and sk6812spi devices (#172)

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* Added "invert" and "spimode" options to ws2801, ws2812spi and sk6812spi devices

* fixed test/TestSpi.cpp

* some coding style wish
This commit is contained in:
penfold42 2016-08-14 03:54:08 +10:00 committed by redPanther
parent 9c27db390d
commit 5a902add81
10 changed files with 61 additions and 29 deletions
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12
libsrc/leddevice/LedDeviceFactory.cpp
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@ -116,14 +116,18 @@ LedDevice * LedDeviceFactory::construct(const Json::Value & deviceConfig)
device = new LedDeviceWs2801(
deviceConfig["output"].asString(),
deviceConfig["rate"].asInt(),
deviceConfig.get("latchtime",500000).asInt()
deviceConfig.get("latchtime",500000).asInt(),
deviceConfig.get("spimode",0).asInt(),
deviceConfig.get("invert",false).asBool()
);
}
else if (type == "ws2812spi")
{
device = new LedDeviceWs2812SPI(
deviceConfig["output"].asString(),
deviceConfig.get("rate",2857143).asInt()
deviceConfig.get("rate",2857143).asInt(),
deviceConfig.get("spimode",0).asInt(),
deviceConfig.get("invert",false).asBool()
);
}
else if (type == "sk6812rgbw-spi")
@ -131,7 +135,9 @@ LedDevice * LedDeviceFactory::construct(const Json::Value & deviceConfig)
device = new LedDeviceSk6812SPI(
deviceConfig["output"].asString(),
deviceConfig.get("rate",2857143).asInt(),
deviceConfig.get("white_algorithm","").asString()
deviceConfig.get("white_algorithm","").asString(),
deviceConfig.get("spimode",0).asInt(),
deviceConfig.get("invert",false).asBool()
);
}
#endif

11
libsrc/leddevice/LedDeviceSk6812SPI.cpp
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@ -11,11 +11,12 @@
// hyperion local includes
#include "LedDeviceSk6812SPI.h"
LedDeviceSk6812SPI::LedDeviceSk6812SPI(const std::string& outputDevice, const unsigned baudrate, const std::string& whiteAlgorithm) :
LedSpiDevice(outputDevice, baudrate, 0),
mLedCount(0),
_whiteAlgorithm(whiteAlgorithm),
bitpair_to_byte {
LedDeviceSk6812SPI::LedDeviceSk6812SPI(const std::string& outputDevice, const unsigned baudrate, const std::string& whiteAlgorithm,
const int spiMode, const bool spiDataInvert)
: LedSpiDevice(outputDevice, baudrate, 0, spiMode, spiDataInvert)
, mLedCount(0)
, _whiteAlgorithm(whiteAlgorithm)
, bitpair_to_byte {
0b10001000,
0b10001100,
0b11001000,

3
libsrc/leddevice/LedDeviceSk6812SPI.h
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@ -20,7 +20,8 @@ public:
///
LedDeviceSk6812SPI(const std::string& outputDevice, const unsigned baudrate,
const std::string& whiteAlgorithm);
const std::string& whiteAlgorithm,
const int spiMode, const bool spiDataInvert);
///
/// Writes the led color values to the led-device

7
libsrc/leddevice/LedDeviceWs2801.cpp
View File

@ -11,9 +11,10 @@
// hyperion local includes
#include "LedDeviceWs2801.h"
LedDeviceWs2801::LedDeviceWs2801(const std::string& outputDevice, const unsigned baudrate, const unsigned latchTime) :
LedSpiDevice(outputDevice, baudrate, latchTime),
mLedCount(0)
LedDeviceWs2801::LedDeviceWs2801(const std::string& outputDevice, const unsigned baudrate, const unsigned latchTime,
const int spiMode, const bool spiDataInvert)
: LedSpiDevice(outputDevice, baudrate, latchTime, spiMode, spiDataInvert)
, mLedCount(0)
{
// empty
}

4
libsrc/leddevice/LedDeviceWs2801.h
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@ -21,7 +21,9 @@ public:
LedDeviceWs2801(const std::string& outputDevice,
const unsigned baudrate,
const unsigned latchTime);
const unsigned latchTime,
const int spiMode,
const bool spiDataInvert);
///
/// Writes the led color values to the led-device

9
libsrc/leddevice/LedDeviceWs2812SPI.cpp
View File

@ -11,10 +11,11 @@
// hyperion local includes
#include "LedDeviceWs2812SPI.h"
LedDeviceWs2812SPI::LedDeviceWs2812SPI(const std::string& outputDevice, const unsigned baudrate) :
LedSpiDevice(outputDevice, baudrate, 0),
mLedCount(0),
bitpair_to_byte {
LedDeviceWs2812SPI::LedDeviceWs2812SPI(const std::string& outputDevice, const unsigned baudrate,
const int spiMode, const bool spiDataInvert)
: LedSpiDevice(outputDevice, baudrate, 0, spiMode, spiDataInvert)
, mLedCount(0)
, bitpair_to_byte {
0b10001000,
0b10001100,
0b11001000,

4
libsrc/leddevice/LedDeviceWs2812SPI.h
View File

@ -18,8 +18,8 @@ public:
/// @param outputDevice The name of the output device (eg '/etc/SpiDev.0.0')
/// @param baudrate The used baudrate for writing to the output device
///
LedDeviceWs2812SPI(const std::string& outputDevice,
const unsigned baudrate);
LedDeviceWs2812SPI(const std::string& outputDevice, const unsigned baudrate,
const int spiMode, const bool spiDataInvert);
///
/// Writes the led color values to the led-device

25
libsrc/leddevice/LedSpiDevice.cpp
View File

@ -14,11 +14,14 @@
#include <utils/Logger.h>
LedSpiDevice::LedSpiDevice(const std::string& outputDevice, const unsigned baudrate, const int latchTime_ns) :
mDeviceName(outputDevice),
mBaudRate_Hz(baudrate),
mLatchTime_ns(latchTime_ns),
mFid(-1)
LedSpiDevice::LedSpiDevice(const std::string& outputDevice, const unsigned baudrate, const int latchTime_ns,
const int spiMode, const bool spiDataInvert)
: mDeviceName(outputDevice)
, mBaudRate_Hz(baudrate)
, mLatchTime_ns(latchTime_ns)
, mFid(-1)
, mSpiMode(spiMode)
, mSpiDataInvert(spiDataInvert)
{
memset(&spi, 0, sizeof(spi));
}
@ -30,6 +33,7 @@ LedSpiDevice::~LedSpiDevice()
int LedSpiDevice::open()
{
//printf ("mSpiDataInvert %d mSpiMode %d\n",mSpiDataInvert, mSpiMode);
const int bitsPerWord = 8;
mFid = ::open(mDeviceName.c_str(), O_RDWR);
@ -40,8 +44,7 @@ int LedSpiDevice::open()
return -1;
}
int mode = SPI_MODE_0;
if (ioctl(mFid, SPI_IOC_WR_MODE, &mode) == -1 || ioctl(mFid, SPI_IOC_RD_MODE, &mode) == -1)
if (ioctl(mFid, SPI_IOC_WR_MODE, &mSpiMode) == -1 || ioctl(mFid, SPI_IOC_RD_MODE, &mSpiMode) == -1)
{
return -2;
}
@ -69,6 +72,14 @@ int LedSpiDevice::writeBytes(const unsigned size, const uint8_t * data)
spi.tx_buf = __u64(data);
spi.len = __u32(size);
if (mSpiDataInvert) {
uint8_t * newdata = (uint8_t *)malloc(size);
for (unsigned i = 0; i<size; i++) {
newdata[i] = data[i] ^ 0xff;
}
spi.tx_buf = __u64(newdata);
}
int retVal = ioctl(mFid, SPI_IOC_MESSAGE(1), &spi);
if (retVal == 0 && mLatchTime_ns > 0)

11
libsrc/leddevice/LedSpiDevice.h
View File

@ -20,7 +20,9 @@ public:
/// @param[in] latchTime_ns The latch-time to latch in the values across the SPI-device (negative
/// means no latch required) [ns]
///
LedSpiDevice(const std::string& outputDevice, const unsigned baudrate, const int latchTime_ns = -1);
LedSpiDevice(const std::string& outputDevice, const unsigned baudrate, const int latchTime_ns = -1,
const int spiMode = SPI_MODE_0, const bool spiDataInvert = false);
///
/// Destructor of the LedDevice; closes the output device if it is open
@ -56,6 +58,13 @@ private:
/// The File Identifier of the opened output device (or -1 if not opened)
int mFid;
/// which spi clock mode do we use? (0..3)
int mSpiMode;
/// 1=>invert the data pattern
bool mSpiDataInvert;
/// The transfer structure for writing to the spi-device
spi_ioc_transfer spi;
};

4
test/TestSpi.cpp
View File

@ -54,7 +54,7 @@ void setColor(char* colorStr)
unsigned ledCnt = 50;
std::vector<ColorRgb> buff(ledCnt, color);
LedDeviceWs2801 ledDevice("/dev/spidev0.0", 40000, 500000);
LedDeviceWs2801 ledDevice("/dev/spidev0.0", 40000, 500000, 0, 0);
ledDevice.open();
ledDevice.write(buff);
}
@ -68,7 +68,7 @@ void doCircle()
unsigned ledCnt = 50;
std::vector<ColorRgb> data(ledCnt, ColorRgb::BLACK);
LedDeviceWs2801 ledDevice("/dev/spidev0.0", 40000, 500000);
LedDeviceWs2801 ledDevice("/dev/spidev0.0", 40000, 500000, 0, 0);
ledDevice.open();
timespec loopTime;