1 files changed, 72 insertions, 0 deletions
diff --git a/gdb/arc-gpio.h b/gdb/arc-gpio.h
new file mode 100755
index 0000000..914138c
--- /dev/null
+++ b/gdb/arc-gpio.h
@@ -0,0 +1,72 @@
+/* Target dependent code for ARC processor family, for GDB, the GNU debugger.
+
+   Copyright 2008, 2009 Free Software Foundation, Inc.
+
+   Contributed by ARC International (www.arc.com)
+
+   Authors:
+      Richard Stuckey      <richard.stuckey@arc.com>
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/******************************************************************************/
+/*                                                                            */
+/* Outline:                                                                   */
+/*     This header file defines operations for reading data from / writing    */
+/*     data to a parallel port using a GPIO (General Purpose Input/Output)    */
+/*     driver.                                                                */
+/*                                                                            */
+/******************************************************************************/
+
+#ifndef ARC_GPIO_H
+#define ARC_GPIO_H
+
+/* ARC header files */
+#include "arc-support.h"
+
+
+#define GPIO_DEVICE         "/dev/gpio"
+
+
+typedef enum
+{
+    DATA_PORT    = 0,
+    STATUS_PORT  = 1,
+    CONTROL_PORT = 2
+} ParallelPort;
+
+typedef unsigned char Byte;
+
+typedef struct
+{
+    ParallelPort port;
+    Byte         data;
+} GPIO_Pair;
+
+
+Boolean gpio_open  (void);
+void    gpio_close (void);
+
+void gpio_write (ParallelPort port, Byte data);
+Byte gpio_read  (ParallelPort port);
+
+void gpio_write_array (GPIO_Pair array[], unsigned int num_elements);
+
+
+extern Boolean gpio_port_error;
+
+#endif /* ARC_GPIO_H */
+/******************************************************************************/