Add OpenMote-CC2538 platform and examples.

2016-02-11 01:34:08 +01:00 · 2016-02-11 01:34:08 +01:00 · 1d3c37d6da
commit 1d3c37d6da
parent 99de563e8d
27 changed files with 3166 additions and 0 deletions
--- a/platform/openmote-cc2538/dev/button-sensor.c
+++ b/platform/openmote-cc2538/dev/button-sensor.c
@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2012, Texas Instruments Incorporated - http://www.ti.com/
+ * 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. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``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
+ * COPYRIGHT HOLDER OR CONTRIBUTORS 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.
+ */
+
+/**
+ * \addtogroup platform
+ * @{
+ *
+ * \defgroup openmote
+ *
+ * \file
+ * Driver for the OpenMote-CC2538 buttons
+ *
+ */
+
+/*---------------------------------------------------------------------------*/
+#include "contiki.h"
+#include "dev/nvic.h"
+#include "dev/ioc.h"
+#include "dev/gpio.h"
+#include "dev/button-sensor.h"
+#include "sys/timer.h"
+
+#include <stdint.h>
+#include <string.h>
+/*---------------------------------------------------------------------------*/
+#define BUTTON_USER_PORT_BASE  GPIO_PORT_TO_BASE(BUTTON_USER_PORT)
+#define BUTTON_USER_PIN_MASK   GPIO_PIN_MASK(BUTTON_USER_PIN)
+/*---------------------------------------------------------------------------*/
+static struct timer debouncetimer;
+/*---------------------------------------------------------------------------*/
+/**
+ * \brief Common initialiser for all buttons
+ * \param port_base GPIO port's register offset
+ * \param pin_mask Pin mask corresponding to the button's pin
+ */
+static void
+config(uint32_t port_base, uint32_t pin_mask)
+{
+  /* Software controlled */
+  GPIO_SOFTWARE_CONTROL(port_base, pin_mask);
+
+  /* Set pin to input */
+  GPIO_SET_INPUT(port_base, pin_mask);
+
+  /* Enable edge detection */
+  GPIO_DETECT_EDGE(port_base, pin_mask);
+
+  /* Single edge */
+  GPIO_TRIGGER_SINGLE_EDGE(port_base, pin_mask);
+
+  /* Trigger interrupt on Falling edge */
+  GPIO_DETECT_RISING(port_base, pin_mask);
+
+  GPIO_ENABLE_INTERRUPT(port_base, pin_mask);
+}
+/*---------------------------------------------------------------------------*/
+/**
+ * \brief Callback registered with the GPIO module. Gets fired with a button
+ * port/pin generates an interrupt
+ * \param port The port number that generated the interrupt
+ * \param pin The pin number that generated the interrupt. This is the pin
+ * absolute number (i.e. 0, 1, ..., 7), not a mask
+ */
+static void
+btn_callback(uint8_t port, uint8_t pin)
+{
+  if(!timer_expired(&debouncetimer)) {
+    return;
+  }
+  timer_set(&debouncetimer, CLOCK_SECOND / 8);
+  if(port == GPIO_C_NUM) {
+    sensors_changed(&button_user_sensor);
+  }
+}
+/*---------------------------------------------------------------------------*/
+/**
+ * \brief Init function for the select button.
+ *
+ * Parameters are ignored. They have been included because the prototype is
+ * dictated by the core sensor api. The return value is also not required by
+ * the API but otherwise ignored.
+ *
+ * \param type ignored
+ * \param value ignored
+ * \return ignored
+ */
+static int
+config_user(int type, int value)
+{
+  config(BUTTON_USER_PORT_BASE, BUTTON_USER_PIN_MASK);
+
+  ioc_set_over(BUTTON_USER_PORT, BUTTON_USER_PIN, IOC_OVERRIDE_PUE);
+
+  nvic_interrupt_enable(BUTTON_USER_VECTOR);
+
+  gpio_register_callback(btn_callback, BUTTON_USER_PORT, BUTTON_USER_PIN);
+  return 1;
+}
+/*---------------------------------------------------------------------------*/
+void
+button_sensor_init()
+{
+  timer_set(&debouncetimer, 0);
+}
+/*---------------------------------------------------------------------------*/
+SENSORS_SENSOR(button_user_sensor, BUTTON_SENSOR, NULL, config_user, NULL);
+/*---------------------------------------------------------------------------*/
+/** @} */