Merge devel code into the trunk.

[tinyos-2.x.git] / tos / chips / msp430 / pins / HplMsp430InterruptNMIP.nc

diff --git a/tos/chips/msp430/pins/HplMsp430InterruptNMIP.nc b/tos/chips/msp430/pins/HplMsp430InterruptNMIP.nc
new file mode 100644 (file)
index 0000000..f364395
--- /dev/null
+++ b/tos/chips/msp430/pins/HplMsp430InterruptNMIP.nc
@@ -0,0 +1,93 @@
+
+/* "Copyright (c) 2000-2005 The Regents of the University of California.  
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement
+ * is hereby granted, provided that the above copyright notice, the following
+ * two paragraphs and the author appear in all copies of this software.
+ * 
+ * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY
+ * OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS."
+ */
+
+/**
+ * @author Joe Polastre
+ */
+module HplMsp430InterruptNMIP
+{
+  provides interface HplMsp430Interrupt as NMI;
+  provides interface HplMsp430Interrupt as OF;
+  provides interface HplMsp430Interrupt as ACCV;
+}
+implementation
+{
+  TOSH_SIGNAL(NMI_VECTOR)
+  {
+    volatile int n = IFG1;
+    if (n & NMIIFG) { signal NMI.fired(); return; }
+    if (n & OFIFG)  { signal OF.fired();  return; }
+    if (FCTL3 & ACCVIFG) { signal ACCV.fired(); return; }
+  }
+
+  default async event void NMI.fired() { call NMI.clear(); }
+  default async event void OF.fired() { call OF.clear(); }
+  default async event void ACCV.fired() { call ACCV.clear(); }
+
+  async command void NMI.enable() {
+    volatile uint16_t _watchdog;
+    atomic {
+      _watchdog = WDTCTL;
+      _watchdog = WDTPW | (_watchdog & 0x0FF);
+      _watchdog |= WDTNMI;
+      WDTCTL = _watchdog;
+      IE1 |= NMIIE;
+    }
+  }
+  async command void OF.enable() { atomic IE1 |= OFIE; }
+  async command void ACCV.enable() { atomic IE1 |= ACCVIE; }
+
+  async command void NMI.disable() {
+    volatile uint16_t _watchdog;
+    atomic {
+      _watchdog = WDTCTL;
+      _watchdog = WDTPW | (_watchdog & 0x0FF);
+      _watchdog &= ~WDTNMI;
+      WDTCTL = _watchdog;
+      IE1 &= ~NMIIE;
+    }
+  }
+  async command void OF.disable() { atomic IE1 &= ~OFIE; }
+  async command void ACCV.disable() { atomic IE1 &= ~ACCVIE; }
+
+  async command void NMI.clear() { atomic IFG1 &= ~NMIIFG; }
+  async command void OF.clear() { atomic IFG1 &= ~OFIFG; }
+  async command void ACCV.clear() { atomic FCTL3 &= ~ACCVIFG; }
+
+  async command bool NMI.getValue() { bool b; atomic b=(IFG1 >> NMIIFG) & 0x01; return b; }
+  async command bool OF.getValue() { bool b; atomic b=(IFG1 >> OFIFG) & 0x01; return b; }
+  async command bool ACCV.getValue() { bool b; atomic b=(FCTL3 >> ACCVIFG) & 0x01; return b; }
+
+  async command void NMI.edge(bool l2h) { 
+    volatile uint16_t _watchdog;
+    atomic {
+      _watchdog = WDTCTL;
+      _watchdog = WDTPW | (_watchdog & 0x0FF);
+      if (l2h)  _watchdog &= ~(WDTNMIES); 
+      else      _watchdog |=  (WDTNMIES);
+      WDTCTL = _watchdog;
+    }
+  }
+  // edge does not apply to oscillator faults
+  async command void OF.edge(bool l2h) { }
+  // edge does not apply to flash access violations
+  async command void ACCV.edge(bool l2h) { }
+}