Backport auf gcc 4.6

[hackover2013-badge-firmware.git] / core / gpio / gpio.c

diff --git a/core/gpio/gpio.c b/core/gpio/gpio.c
index 9c84655..2f03e9a 100644 (file)
--- a/core/gpio/gpio.c
+++ b/core/gpio/gpio.c
@@ -43,7 +43,7 @@
 #include "gpio.h"
 
 #ifdef CFG_CHIBI
-#include "drivers/chibi/chb_drvr.h"
+#include "drivers/rf/chibi/chb_drvr.h"
 volatile uint32_t chibi_counter  = 0;
 #endif
 
@@ -56,8 +56,14 @@ static bool _gpioInitialised = false;
 /**************************************************************************/
 /*! 
     @brief IRQ Handler for GPIO port 0 (currently checks pin 0.1)
+
+    @note  By default, this IRQ handler is probably disabled in
+           projectconfig.h (see GPIO_ENABLE_IRQ0), but you can use
+           the code below as a model to implement this interrupt
+           handler in an appropriate place in your project.
 */
 /**************************************************************************/
+#if defined GPIO_ENABLE_IRQ0
 void PIOINT0_IRQHandler(void)
 {
   uint32_t regVal;
@@ -69,12 +75,14 @@ void PIOINT0_IRQHandler(void)
   }            
   return;
 }
+#endif
 
 /**************************************************************************/
 /*! 
     @brief IRQ Handler for GPIO port 1 (currently checks pin 1.1)
 */
 /**************************************************************************/
+#if defined GPIO_ENABLE_IRQ1
 void PIOINT1_IRQHandler(void)
 {
   uint32_t regVal;
@@ -107,12 +115,19 @@ void PIOINT1_IRQHandler(void)
 
   return;
 }
+#endif
 
 /**************************************************************************/
 /*! 
     @brief IRQ Handler for GPIO port 2 (currently checks pin 2.1)
+
+    @note  By default, this IRQ handler is probably disabled in
+           projectconfig.h (see GPIO_ENABLE_IRQ2), but you can use
+           the code below as a model to implement this interrupt
+           handler in an appropriate place in your project.
 */
 /**************************************************************************/
+#if defined GPIO_ENABLE_IRQ2
 void PIOINT2_IRQHandler(void)
 {
   uint32_t regVal;
@@ -124,12 +139,19 @@ void PIOINT2_IRQHandler(void)
   }            
   return;
 }
+#endif
 
 /**************************************************************************/
 /*! 
     @brief IRQ Handler for GPIO port 3 (currently checks pin 3.1)
+
+    @note  By default, this IRQ handler is probably disabled in
+           projectconfig.h (see GPIO_ENABLE_IRQ3), but you can use
+           the code below as a model to implement this interrupt
+           handler in an appropriate place in your project.
 */
 /**************************************************************************/
+#if defined GPIO_ENABLE_IRQ3
 void PIOINT3_IRQHandler(void)
 {
   uint32_t regVal;
@@ -141,6 +163,7 @@ void PIOINT3_IRQHandler(void)
   }            
   return;
 }
+#endif
 
 /**************************************************************************/
 /*! 
@@ -204,85 +227,6 @@ void gpioSetDir (uint32_t portNum, uint32_t bitPos, gpioDirection_t dir)
   dir == gpioDirection_Output ? (*gpiodir |= (1 << bitPos)) : (*gpiodir &= ~(1 << bitPos));
 }
 
-/**************************************************************************/
-/*! 
-    @brief Gets the value for a specific port pin
-
-    @param[in]  portNum
-                The port number (0..3)
-    @param[in]  bitPos
-                The bit position (0..31)
-
-    @return     The current value for the specified port pin (0..1)
-*/
-/**************************************************************************/
-uint32_t gpioGetValue (uint32_t portNum, uint32_t bitPos)
-{
-  if (!_gpioInitialised) gpioInit();
-
-  uint32_t value = 0;
-
-  switch (portNum)
-  {
-    case 0:
-      value = (GPIO_GPIO0DATA & (1 << bitPos)) ? 1 : 0;
-      break;
-    case 1:
-      value = (GPIO_GPIO1DATA & (1 << bitPos)) ? 1 : 0;
-      break;
-    case 2:
-      value = (GPIO_GPIO2DATA & (1 << bitPos)) ? 1 : 0;
-      break;
-    case 3:
-      value = (GPIO_GPIO3DATA & (1 << bitPos)) ? 1 : 0;
-      break;
-    default:
-      break;
-  }
-
-  return value;
-}
-
-/**************************************************************************/
-/*! 
-    @brief Sets the value for a specific port pin (only relevant when a
-           pin is configured as output).
-
-    @param[in]  portNum
-                The port number (0..3)
-    @param[in]  bitPos
-                The bit position (0..31)
-    @param[in]  bitValue
-                The value to set for the specified bit (0..1).  0 will set
-                the pin low and 1 will set the pin high.
-*/
-/**************************************************************************/
-void gpioSetValue (uint32_t portNum, uint32_t bitPos, uint32_t bitVal)
-{
-  if (!_gpioInitialised) gpioInit();
-
-  // Get the appropriate register (handled this way to optimise code size)
-  REG32 *gpiodata = &GPIO_GPIO0DATA;
-  switch (portNum)
-  {
-    case 0:
-      gpiodata = &GPIO_GPIO0DATA;
-      break;
-    case 1:
-      gpiodata = &GPIO_GPIO1DATA;
-      break;
-    case 2:
-      gpiodata = &GPIO_GPIO2DATA;
-      break;
-    case 3:
-      gpiodata = &GPIO_GPIO3DATA;
-      break;
-  }
-
-  // Toggle value
-  bitVal == 1 ? (*gpiodata |= (1 << bitPos)) : (*gpiodata &= ~(1 << bitPos));
-}
-
 /**************************************************************************/
 /*! 
     @brief Sets the interrupt sense, event, etc.
@@ -352,7 +296,6 @@ void gpioSetInterrupt (uint32_t portNum, uint32_t bitPos, gpioInterruptSense_t s
       break;
   }
 
-
   if (sense == gpioInterruptSense_Edge)
   {
     *gpiois &= ~(0x1<<bitPos);
@@ -363,7 +306,7 @@ void gpioSetInterrupt (uint32_t portNum, uint32_t bitPos, gpioInterruptSense_t s
     *gpiois |= (0x1<<bitPos);
   }
 
-  event == gpioInterruptEvent_ActiveHigh ? (*gpioiev &= ~(0x1<<bitPos)) : (*gpioiev |= (0x1<<bitPos));
+  event == gpioInterruptEvent_ActiveLow ? (*gpioiev &= ~(0x1<<bitPos)) : (*gpioiev |= (0x1<<bitPos));
 
   return;
 }