Use CamelCase for gpio::Edge enum variants

Author: Piroro-hs

CHANGELOG.md

@@ -34,6 +34,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Added open-drain pin mode support for PWM output [#313]
 - Added missing error flags for dma streams [#318]
 - Added PWM input capability to all compatable timers [#271]
+- [breaking-change] `gpio::Edge::{RISING, FALLING, RISING_FALLING}` are renamed to `Rising`, `Falling`, `RisingFalling`, respectively.
 
 [#265]: https://github.com/stm32-rs/stm32f4xx-hal/pull/265
 [#271] https://github.com/stm32-rs/stm32f4xx-hal/pull/271

examples/analog-stopwatch-with-spi-ssd1306.rs

@@ -86,7 +86,7 @@ fn main() -> ! {
     let mut board_btn = gpioa.pa0.into_pull_down_input();
     board_btn.make_interrupt_source(&mut syscfg);
     board_btn.enable_interrupt(&mut dp.EXTI);
-    board_btn.trigger_on_edge(&mut dp.EXTI, Edge::FALLING);
+    board_btn.trigger_on_edge(&mut dp.EXTI, Edge::Falling);
 
     //spi4
     //sck  - pe2

examples/rtic.rs

@@ -30,7 +30,7 @@ const APP: () = {
         let mut button = gpioa.pa0.into_pull_down_input();
         button.make_interrupt_source(&mut syscfg);
         button.enable_interrupt(&mut ctx.device.EXTI);
-        button.trigger_on_edge(&mut ctx.device.EXTI, Edge::RISING);
+        button.trigger_on_edge(&mut ctx.device.EXTI, Edge::Rising);
 
         init::LateResources { button, led }
     }

examples/stopwatch-with-ssd1306-and-interrupts.rs

@@ -81,7 +81,7 @@ fn main() -> ! {
         let mut board_btn = gpioc.pc13.into_pull_up_input();
         board_btn.make_interrupt_source(&mut syscfg);
         board_btn.enable_interrupt(&mut dp.EXTI);
-        board_btn.trigger_on_edge(&mut dp.EXTI, Edge::FALLING);
+        board_btn.trigger_on_edge(&mut dp.EXTI, Edge::Falling);
 
         let interface = I2CDIBuilder::new().init(i2c);
         let mut disp: GraphicsMode<_, _> = Builder::new().connect(interface).into();

src/gpio.rs

@@ -106,9 +106,9 @@ pub enum Speed {
 
 #[derive(Debug, PartialEq, Eq, Clone, Copy)]
 pub enum Edge {
-    RISING,
-    FALLING,
-    RISING_FALLING,
+    Rising,
+    Falling,
+    RisingFalling,
 }
 
 mod sealed {
@@ -171,19 +171,19 @@ where
     fn trigger_on_edge(&mut self, exti: &mut EXTI, edge: Edge) {
         let i = self.pin_id();
         match edge {
-            Edge::RISING => {
+            Edge::Rising => {
                 exti.rtsr
                     .modify(|r, w| unsafe { w.bits(r.bits() | (1 << i)) });
                 exti.ftsr
                     .modify(|r, w| unsafe { w.bits(r.bits() & !(1 << i)) });
             }
-            Edge::FALLING => {
+            Edge::Falling => {
                 exti.ftsr
                     .modify(|r, w| unsafe { w.bits(r.bits() | (1 << i)) });
                 exti.rtsr
                     .modify(|r, w| unsafe { w.bits(r.bits() & !(1 << i)) });
             }
-            Edge::RISING_FALLING => {
+            Edge::RisingFalling => {
                 exti.rtsr
                     .modify(|r, w| unsafe { w.bits(r.bits() | (1 << i)) });
                 exti.ftsr