src/test/unit/ws2811_unittest.cc

   1 /*
   2  * This file is part of Cleanflight.
   3  *
   4  * Cleanflight is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * Cleanflight is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 #include <stdint.h>
  18 #include <stdlib.h>
  19
  20 #include <limits.h>
  21
  22 extern "C" {
  23     #include "build/build_config.h"
  24
  25     #include "common/color.h"
  26
  27     #include "drivers/light_ws2811strip.h"
  28 }
  29
  30 #include "unittest_macros.h"
  31 #include "gtest/gtest.h"
  32
  33 extern "C" {
  34     uint32_t simulatedTime = 0;
  35     uint32_t micros(void) { return simulatedTime; }
  36     void updateLEDDMABuffer(ledStripFormatRGB_e ledFormat, rgbColor24bpp_t *color, unsigned ledIndex);
  37     void schedulerIgnoreTaskExecTime(void) {}
  38     void schedulerIgnoreTaskStateTime(void) {}
  39 }
  40
  41 TEST(WS2812, updateDMABuffer)
  42 {
  43     // given
  44     rgbColor24bpp_t color1 = { .raw = {0xFF,0xAA,0x55} };
  45
  46     // when
  47     updateLEDDMABuffer(LED_GRB, &color1, 0);
  48
  49     // and
  50     uint8_t byteIndex = 0;
  51
  52     EXPECT_EQ(BIT_COMPARE_1, ledStripDMABuffer[(byteIndex * 8) + 0]);
  53     EXPECT_EQ(BIT_COMPARE_0, ledStripDMABuffer[(byteIndex * 8) + 1]);
  54     EXPECT_EQ(BIT_COMPARE_1, ledStripDMABuffer[(byteIndex * 8) + 2]);
  55     EXPECT_EQ(BIT_COMPARE_0, ledStripDMABuffer[(byteIndex * 8) + 3]);
  56     EXPECT_EQ(BIT_COMPARE_1, ledStripDMABuffer[(byteIndex * 8) + 4]);
  57     EXPECT_EQ(BIT_COMPARE_0, ledStripDMABuffer[(byteIndex * 8) + 5]);
  58     EXPECT_EQ(BIT_COMPARE_1, ledStripDMABuffer[(byteIndex * 8) + 6]);
  59     EXPECT_EQ(BIT_COMPARE_0, ledStripDMABuffer[(byteIndex * 8) + 7]);
  60     byteIndex++;
  61
  62     EXPECT_EQ(BIT_COMPARE_1, ledStripDMABuffer[(byteIndex * 8) + 0]);
  63     EXPECT_EQ(BIT_COMPARE_1, ledStripDMABuffer[(byteIndex * 8) + 1]);
  64     EXPECT_EQ(BIT_COMPARE_1, ledStripDMABuffer[(byteIndex * 8) + 2]);
  65     EXPECT_EQ(BIT_COMPARE_1, ledStripDMABuffer[(byteIndex * 8) + 3]);
  66     EXPECT_EQ(BIT_COMPARE_1, ledStripDMABuffer[(byteIndex * 8) + 4]);
  67     EXPECT_EQ(BIT_COMPARE_1, ledStripDMABuffer[(byteIndex * 8) + 5]);
  68     EXPECT_EQ(BIT_COMPARE_1, ledStripDMABuffer[(byteIndex * 8) + 6]);
  69     EXPECT_EQ(BIT_COMPARE_1, ledStripDMABuffer[(byteIndex * 8) + 7]);
  70     byteIndex++;
  71
  72     EXPECT_EQ(BIT_COMPARE_0, ledStripDMABuffer[(byteIndex * 8) + 0]);
  73     EXPECT_EQ(BIT_COMPARE_1, ledStripDMABuffer[(byteIndex * 8) + 1]);
  74     EXPECT_EQ(BIT_COMPARE_0, ledStripDMABuffer[(byteIndex * 8) + 2]);
  75     EXPECT_EQ(BIT_COMPARE_1, ledStripDMABuffer[(byteIndex * 8) + 3]);
  76     EXPECT_EQ(BIT_COMPARE_0, ledStripDMABuffer[(byteIndex * 8) + 4]);
  77     EXPECT_EQ(BIT_COMPARE_1, ledStripDMABuffer[(byteIndex * 8) + 5]);
  78     EXPECT_EQ(BIT_COMPARE_0, ledStripDMABuffer[(byteIndex * 8) + 6]);
  79     EXPECT_EQ(BIT_COMPARE_1, ledStripDMABuffer[(byteIndex * 8) + 7]);
  80     byteIndex++;
  81 }
  82
  83 extern "C" {
  84 rgbColor24bpp_t* hsvToRgb24(const hsvColor_t *c)
  85 {
  86     UNUSED(c);
  87     return NULL;
  88 }
  89
  90 bool ws2811LedStripHardwareInit(ioTag_t ioTag)
  91 {
  92     UNUSED(ioTag);
  93
  94     return true;
  95 }
  96
  97 void ws2811LedStripDMAEnable(void) {}
  98 }
  99