System: Refactor pin and interrupt setup

This should ensure better readability of the pin setup procedure,
as well as allow the configuration of the hardware button enable pin
and the accelerometer interrupt pin via the pin mapping header.

1 files changed, 9 insertions, 19 deletions

diff --git a/src/systemtask/SystemTask.cpp b/src/systemtask/SystemTask.cpp
index c7e0fc88..200cf3b0 100644
--- a/src/systemtask/SystemTask.cpp
+++ b/src/systemtask/SystemTask.cpp
@@ -172,39 +172,29 @@ void SystemTask::Work() {
 
   buttonHandler.Init(this);
 
-  // Button
-  nrf_gpio_cfg_output(15);
-  nrf_gpio_pin_set(15);
-
+  // Setup Interrupts
   nrfx_gpiote_in_config_t pinConfig;
   pinConfig.skip_gpio_setup = false;
   pinConfig.hi_accuracy = false;
   pinConfig.is_watcher = false;
-  pinConfig.sense = static_cast<nrf_gpiote_polarity_t>(NRF_GPIOTE_POLARITY_TOGGLE);
-  pinConfig.pull = static_cast<nrf_gpio_pin_pull_t>(GPIO_PIN_CNF_PULL_Pulldown);
 
+  // Button
+  nrf_gpio_cfg_output(PinMap::ButtonEnable);
+  nrf_gpio_pin_set(PinMap::ButtonEnable);
+  pinConfig.sense = NRF_GPIOTE_POLARITY_TOGGLE;
+  pinConfig.pull = NRF_GPIO_PIN_PULLDOWN;
   nrfx_gpiote_in_init(PinMap::Button, &pinConfig, nrfx_gpiote_evt_handler);
   nrfx_gpiote_in_event_enable(PinMap::Button, true);
 
   // Touchscreen
-  nrf_gpio_cfg_sense_input(PinMap::Cst816sIrq,
-                           static_cast<nrf_gpio_pin_pull_t>(GPIO_PIN_CNF_PULL_Pullup),
-                           static_cast<nrf_gpio_pin_sense_t>(GPIO_PIN_CNF_SENSE_Low));
-
-  pinConfig.skip_gpio_setup = true;
-  pinConfig.hi_accuracy = false;
-  pinConfig.is_watcher = false;
-  pinConfig.sense = static_cast<nrf_gpiote_polarity_t>(NRF_GPIOTE_POLARITY_HITOLO);
-  pinConfig.pull = static_cast<nrf_gpio_pin_pull_t>(GPIO_PIN_CNF_PULL_Pullup);
-
+  pinConfig.sense = NRF_GPIOTE_POLARITY_HITOLO;
+  pinConfig.pull = NRF_GPIO_PIN_PULLUP;
   nrfx_gpiote_in_init(PinMap::Cst816sIrq, &pinConfig, nrfx_gpiote_evt_handler);
+  nrfx_gpiote_in_event_enable(PinMap::Cst816sIrq, true);
 
   // Power present
   pinConfig.sense = NRF_GPIOTE_POLARITY_TOGGLE;
   pinConfig.pull = NRF_GPIO_PIN_NOPULL;
-  pinConfig.is_watcher = false;
-  pinConfig.hi_accuracy = false;
-  pinConfig.skip_gpio_setup = false;
   nrfx_gpiote_in_init(PinMap::PowerPresent, &pinConfig, nrfx_gpiote_evt_handler);
   nrfx_gpiote_in_event_enable(PinMap::PowerPresent, true);