Preliminary untested code for the internal MSP430 battery sensor

platform/sky/dev/battery-sensor.c

@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2006, Swedish Institute of Computer Science.
+ * 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
+ *
+ * $Id: battery-sensor.c,v 1.1 2007/11/13 20:29:07 adamdunkels Exp $
+ *
+ * -----------------------------------------------------------------
+ *
+ * Author  : Adam Dunkels, Joakim Eriksson, Niclas Finne
+ * Created : 2005-11-01
+ * Updated : $Date: 2007/11/13 20:29:07 $
+ *           $Revision: 1.1 $
+ */
+
+#include "dev/battery-sensor.h"
+#include <io.h>
+#include "dev/irq.h"
+
+const struct sensors_sensor battery_sensor;
+/*static unsigned int battery_value;*/
+
+/*---------------------------------------------------------------------------*/
+static void
+init(void)
+{
+  /*  battery_value = 0;*/
+}
+/*---------------------------------------------------------------------------*/
+static int
+irq(void)
+{
+  /*  battery_value = ADC12MEM6;*/
+  return 0;
+}
+/*---------------------------------------------------------------------------*/
+static void
+activate(void)
+{
+  SVSCTL = 0xf0;
+  P6SEL |= 0x80;
+  P6DIR = 0xff;
+  P6OUT = 0x00;
+
+  /* Set up the ADC. */
+  //  ADC12CTL2 = SHT0_6 + SHT1_6 + MSC; // Setup ADC12, ref., sampling time
+  ADC12MCTL2 = (INCH_11 + SREF_0);
+
+/*   ADC12CTL2 |= ADC12ON + REFON; */
+
+/*   ADC12CTL2 |= ENC;		// enable conversion */
+/*   ADC12CTL2 |= ADC12SC;		// sample & convert */
+
+  //  Irq_adc12_activate(&battery_sensor, 6, (INCH_11 + SREF_0));
+}
+/*---------------------------------------------------------------------------*/
+static void
+deactivate(void)
+{
+  /*  irq_adc12_deactivate(&battery_sensor, 6);
+      battery_value = 0;*/
+}
+/*---------------------------------------------------------------------------*/
+static int
+active(void)
+{
+  return 0; /* irq_adc12_active(6);*/
+}
+/*---------------------------------------------------------------------------*/
+static unsigned int
+value(int type)
+{
+  return ADC12MEM2/*battery_value*/;
+}
+/*---------------------------------------------------------------------------*/
+static int
+configure(int type, void *c)
+{
+  return 0;
+}
+/*---------------------------------------------------------------------------*/
+static void *
+status(int type)
+{
+  return NULL;
+}
+/*---------------------------------------------------------------------------*/
+SENSORS_SENSOR(battery_sensor, BATTERY_SENSOR,
+	       init, irq, activate, deactivate, active,
+	       value, configure, status);