Diff: capi/mbed_interface.c

Revision:

0:fd0d7bdfcdc2

Child:

2:143cac498751

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/capi/mbed_interface.c	Tue Nov 20 17:24:08 2012 +0000
@@ -0,0 +1,103 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include <stdio.h>
+#include "mbed_interface.h"
+
+#include "gpio_api.h"
+#include "wait_api.h"
+#include "semihost_api.h"
+#include "error.h"
+
+// return true if a debugger is attached, indicating mbed interface is connected
+int mbed_interface_connected(void) {
+    return semihost_connected();
+}
+
+int mbed_interface_reset(void) {
+    if (mbed_interface_connected()) {
+        semihost_reset(); 
+        return 0;
+    } else {
+        return -1;
+    }
+}
+
+int mbed_interface_uid(char *uid) __attribute__((weak));
+int mbed_interface_uid(char *uid) {
+    if (mbed_interface_connected()) {
+        return semihost_uid(uid); // Returns 0 if successful, -1 on failure
+    } else {
+        uid[0] = 0;
+        return -1;
+    }
+}
+
+int mbed_interface_disconnect(void) {
+    if (mbed_interface_connected()) {
+        return semihost_disabledebug();
+    } else {
+        return -1;
+    }
+}
+
+int mbed_interface_powerdown(void) {
+    mbed_interface_disconnect();
+    if (mbed_interface_connected()) {
+        return semihost_powerdown();
+    } else {
+        return -1;
+    }
+}
+
+void mbed_mac_address(char *mac) __attribute__((weak));
+void mbed_mac_address(char *mac) {
+    char uid[33];
+    int i;
+    
+    // if we have a UID, extract the MAC
+    if (mbed_interface_uid(uid) == 0) {
+        char *p = uid + 20;
+        for (i=0; i<6; i++) {
+            int byte;
+            sscanf(p, "%2x", &byte);
+            mac[i] = byte;
+            p += 2;
+        }
+    } else {  // else return a default MAC
+        mac[0] = 0x00;
+        mac[1] = 0x02;
+        mac[2] = 0xF7;
+        mac[3] = 0xF0;
+        mac[4] = 0x00;
+        mac[5] = 0x00;
+    }
+}
+
+// for backward compatibility
+void mbed_reset(void) {
+    mbed_interface_reset();
+}
+
+int mbed_uid(char *uid) __attribute__((weak));
+int mbed_uid(char *uid) {
+    return mbed_interface_uid(uid);
+}