add initial files from teensy's usb_keyboard_debug.

1 files changed, 62 insertions, 0 deletions

diff --git a/print.c b/print.c
new file mode 100644
index 000000000..e6aa1fe52
--- /dev/null
+++ b/print.c
@@ -0,0 +1,62 @@
+/* Very basic print functions, intended to be used with usb_debug_only.c
+ * http://www.pjrc.com/teensy/
+ * Copyright (c) 2008 PJRC.COM, LLC
+ * 
+ * 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.
+ */
+
+// Version 1.0: Initial Release
+
+#include <avr/io.h>
+#include <avr/pgmspace.h>
+
+#include "print.h"
+
+void print_P(const char *s)
+{
+        char c;
+
+        while (1) {
+                c = pgm_read_byte(s++);
+                if (!c) break;
+                if (c == '\n') usb_debug_putchar('\r');
+                usb_debug_putchar(c);
+        }
+}
+
+void phex1(unsigned char c)
+{
+        usb_debug_putchar(c + ((c < 10) ? '0' : 'A' - 10));
+}
+
+void phex(unsigned char c)
+{
+        phex1(c >> 4);
+        phex1(c & 15);
+}
+
+void phex16(unsigned int i)
+{
+        phex(i >> 8);
+        phex(i);
+}
+
+
+
+