Update to 2018_v4 image and new build system. (#598)

* Revert "Force OpenCV to 3.1.0 (#602)" This reverts commit 50ed55e8e2. * Removes Simulation * Removes old build system * Removes old gtest * Adds new gmock and gtest * Updates to new ni-libraries * removes MyRobot (to be replaced) * moves files to new location * Adds new sim backend and new test executables * updates .styleguide and .gitignore * Changes cpp WPILibVersion to a function MSVC throws an AV with the old version. * Disables USBCamera on all systems except for linux * 2018 NI Libraries * New build system
2026-06-23 01:21:42 +00:00 · 2017-08-18 21:35:53 -07:00
parent 50ed55e8e2
commit e1195e8b9d
1024 changed files with 64481 additions and 61340 deletions
--- a/hal/src/main/native/athena/AnalogInternal.cpp
+++ b/hal/src/main/native/athena/AnalogInternal.cpp
@@ -0,0 +1,121 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2016-2017. All Rights Reserved.                        */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#include "AnalogInternal.h"
+
+#include <atomic>
+
+#include "HAL/AnalogInput.h"
+#include "HAL/ChipObject.h"
+#include "HAL/cpp/priority_mutex.h"
+#include "PortsInternal.h"
+
+namespace hal {
+priority_recursive_mutex analogRegisterWindowMutex;
+std::unique_ptr<tAI> analogInputSystem;
+std::unique_ptr<tAO> analogOutputSystem;
+
+IndexedHandleResource<HAL_AnalogInputHandle, hal::AnalogPort, kNumAnalogInputs,
+                      HAL_HandleEnum::AnalogInput>
+    analogInputHandles;
+
+static int32_t analogNumChannelsToActivate = 0;
+
+static std::atomic<bool> analogSystemInitialized{false};
+
+bool analogSampleRateSet = false;
+
+/**
+ * Initialize the analog System.
+ */
+void initializeAnalog(int32_t* status) {
+  if (analogSystemInitialized) return;
+  std::lock_guard<priority_recursive_mutex> sync(analogRegisterWindowMutex);
+  if (analogSystemInitialized) return;
+  analogInputSystem.reset(tAI::create(status));
+  analogOutputSystem.reset(tAO::create(status));
+  setAnalogNumChannelsToActivate(kNumAnalogInputs);
+  setAnalogSampleRate(kDefaultSampleRate, status);
+  analogSystemInitialized = true;
+}
+
+/**
+ * Return the number of channels on the module in use.
+ *
+ * @return Active channels.
+ */
+int32_t getAnalogNumActiveChannels(int32_t* status) {
+  int32_t scanSize = analogInputSystem->readConfig_ScanSize(status);
+  if (scanSize == 0) return 8;
+  return scanSize;
+}
+
+/**
+ * Get the number of active channels.
+ *
+ * This is an internal function to allow the atomic update of both the
+ * number of active channels and the sample rate.
+ *
+ * When the number of channels changes, use the new value.  Otherwise,
+ * return the curent value.
+ *
+ * @return Value to write to the active channels field.
+ */
+int32_t getAnalogNumChannelsToActivate(int32_t* status) {
+  if (analogNumChannelsToActivate == 0)
+    return getAnalogNumActiveChannels(status);
+  return analogNumChannelsToActivate;
+}
+
+/**
+ * Set the sample rate.
+ *
+ * This is a global setting for the Athena and effects all channels.
+ *
+ * @param samplesPerSecond The number of samples per channel per second.
+ */
+void setAnalogSampleRate(double samplesPerSecond, int32_t* status) {
+  // TODO: This will change when variable size scan lists are implemented.
+  // TODO: Need double comparison with epsilon.
+  // wpi_assert(!sampleRateSet || GetSampleRate() == samplesPerSecond);
+  analogSampleRateSet = true;
+
+  // Compute the convert rate
+  uint32_t ticksPerSample =
+      static_cast<uint32_t>(static_cast<double>(kTimebase) / samplesPerSecond);
+  uint32_t ticksPerConversion =
+      ticksPerSample / getAnalogNumChannelsToActivate(status);
+  // ticksPerConversion must be at least 80
+  if (ticksPerConversion < 80) {
+    if ((*status) >= 0) *status = SAMPLE_RATE_TOO_HIGH;
+    ticksPerConversion = 80;
+  }
+
+  // Atomically set the scan size and the convert rate so that the sample rate
+  // is constant
+  tAI::tConfig config;
+  config.ScanSize = getAnalogNumChannelsToActivate(status);
+  config.ConvertRate = ticksPerConversion;
+  analogInputSystem->writeConfig(config, status);
+
+  // Indicate that the scan size has been commited to hardware.
+  setAnalogNumChannelsToActivate(0);
+}
+
+/**
+ * Set the number of active channels.
+ *
+ * Store the number of active channels to set.  Don't actually commit to
+ * hardware
+ * until SetSampleRate().
+ *
+ * @param channels Number of active channels.
+ */
+void setAnalogNumChannelsToActivate(int32_t channels) {
+  analogNumChannelsToActivate = channels;
+}
+}  // namespace hal