New Contiki port to STM32W108.

platform/mb851/dev/button-sensor.c

@@ -0,0 +1,185 @@
+/*
+ * Copyright (c) 2010, STMicroelectronics.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above
+ *    copyright notice, this list of conditions and the following
+ *    disclaimer in the documentation and/or other materials provided
+ *    with the distribution.
+ * 3. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This file is part of the Contiki OS
+ *
+ * $Id: button-sensor.c,v 1.1 2010/10/25 09:03:39 salvopitru Exp $
+ */
+/*---------------------------------------------------------------------------*/
+/**
+* \file
+*			Button sensor.
+* \author
+*			Salvatore Pitrulli <salvopitru@users.sourceforge.net>
+*/
+/*---------------------------------------------------------------------------*/
+
+#include "dev/button-sensor.h"
+#include "hal/micro/micro-common.h"
+#include "hal/micro/cortexm3/micro-common.h"
+
+#include BOARD_HEADER
+
+#define DEBOUNCE 1
+
+/**
+ * @brief Point the proper IRQ at the desired pin for BUTTON0.
+ */
+#define BUTTON_S1_SEL()       do { GPIO_IRQCSEL = BUTTON_S1; } while(0)
+/**
+ * @brief The interrupt service routine for BUTTON_S1.
+ */
+#define BUTTON_S1_ISR         halIrqCIsr
+/**
+ * @brief The interrupt configuration register for BUTTON_S1.
+ */
+#define BUTTON_S1_INTCFG      GPIO_INTCFGC
+/**
+ * @brief The interrupt bit for BUTTON_S1.
+ */
+#define BUTTON_S1_INT_EN_BIT  INT_IRQC
+/**
+ * @brief The interrupt bit for BUTTON_S1.
+ */
+#define BUTTON_S1_FLAG_BIT    INT_IRQCFLAG
+/**
+ * @brief The missed interrupt bit for BUTTON_S1.
+ */
+#define BUTTON_S1_MISS_BIT    INT_MISSIRQC
+
+#if DEBOUNCE
+static struct timer debouncetimer;
+#endif
+
+#define FALSE 0
+#define TRUE  1
+
+/*---------------------------------------------------------------------------*/
+static void
+init(void)
+{
+  #if DEBOUNCE
+  timer_set(&debouncetimer, 0);
+  #endif
+  
+  //Input, pulled up or down (selected by GPIO_PxOUT: 0 = pull-down, 1 = pull-up).  
+  halGpioConfig(BUTTON_S1,GPIOCFG_IN_PUD);
+  BUTTON_S1_OUTPUT_GPIO |= GPIOOUT_PULLUP << BUTTON_S1_GPIO_PIN;
+  
+  
+  BUTTON_S1_SEL();
+  BUTTON_S1_INTCFG = 0x40;  // Falling edge triggered.  
+}
+/*---------------------------------------------------------------------------*/
+static void
+activate(void)
+{
+  INT_CFGSET = BUTTON_S1_INT_EN_BIT;
+}
+/*---------------------------------------------------------------------------*/
+static void
+deactivate(void)
+{
+  INT_CFGCLR = BUTTON_S1_INT_EN_BIT;
+}
+/*---------------------------------------------------------------------------*/
+static int
+active(void)
+{
+  return (INT_CFGSET & BUTTON_S1_INT_EN_BIT) ? TRUE : FALSE ;
+}
+/*---------------------------------------------------------------------------*/
+static int
+value(int type)
+{
+#if DEBOUNCE
+  return (BUTTON_S1_INPUT_GPIO & (1<<BUTTON_S1_GPIO_PIN)) || !timer_expired(&debouncetimer);
+#else
+  return BUTTON_S1_INPUT_GPIO & (1<<BUTTON_S1_GPIO_PIN);
+#endif
+}
+/*---------------------------------------------------------------------------*/
+static int
+configure(int type, int value)
+{
+  switch(type){
+    case SENSORS_HW_INIT:
+      init();
+      return 1;
+    case SENSORS_ACTIVE:
+      if(value)        
+        activate();
+      else
+        deactivate();
+      return 1;
+  }
+       
+  return 0;
+}
+/*---------------------------------------------------------------------------*/
+static int
+status(int type)
+{
+  switch(type) {
+    
+    case SENSORS_READY:
+      return active();
+  }
+  
+  return 0;
+}
+/*---------------------------------------------------------------------------*/
+void BUTTON_S1_ISR(void)
+{
+  
+  ENERGEST_ON(ENERGEST_TYPE_IRQ);
+  
+  //sensors_handle_irq(IRQ_BUTTON);
+  
+   if(INT_GPIOFLAG & BUTTON_S1_FLAG_BIT) {
+    
+#if DEBOUNCE
+    if(timer_expired(&debouncetimer)) {
+      timer_set(&debouncetimer, CLOCK_SECOND / 5);
+      sensors_changed(&button_sensor);
+    }
+#else
+    sensors_changed(&button_sensor);
+#endif
+    
+  }
+  
+  INT_GPIOFLAG = BUTTON_S1_FLAG_BIT;  
+  
+  ENERGEST_OFF(ENERGEST_TYPE_IRQ);  
+}
+/*---------------------------------------------------------------------------*/
+SENSORS_SENSOR(button_sensor, BUTTON_SENSOR,
+	       value, configure, status);
+