From ac4fd8e8340886f455add8cf92ee1c8458b8ae19 Mon Sep 17 00:00:00 2001
From: Yuval Adam <yuv.adm@gmail.com>
Date: Sun, 16 Mar 2014 14:31:22 +0200
Subject: Add ek-tm4c1294xl example projects

---
 boards/ek-tm4c1294xl/drivers/buttons.h | 110 +++++++++++++++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 boards/ek-tm4c1294xl/drivers/buttons.h

(limited to 'boards/ek-tm4c1294xl/drivers/buttons.h')

diff --git a/boards/ek-tm4c1294xl/drivers/buttons.h b/boards/ek-tm4c1294xl/drivers/buttons.h
new file mode 100644
index 0000000..38d01e1
--- /dev/null
+++ b/boards/ek-tm4c1294xl/drivers/buttons.h
@@ -0,0 +1,110 @@
+//*****************************************************************************
+//
+// buttons.h - Prototypes for the evaluation board buttons driver.
+//
+// Copyright (c) 2013-2014 Texas Instruments Incorporated.  All rights reserved.
+// Software License Agreement
+// 
+// Texas Instruments (TI) is supplying this software for use solely and
+// exclusively on TI's microcontroller products. The software is owned by
+// TI and/or its suppliers, and is protected under applicable copyright
+// laws. You may not combine this software with "viral" open-source
+// software in order to form a larger program.
+// 
+// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
+// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
+// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
+// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
+// DAMAGES, FOR ANY REASON WHATSOEVER.
+// 
+// This is part of revision 2.1.0.12573 of the EK-TM4C1294XL Firmware Package.
+//
+//*****************************************************************************
+
+#ifndef __BUTTONS_H__
+#define __BUTTONS_H__
+
+//*****************************************************************************
+//
+// If building with a C++ compiler, make all of the definitions in this header
+// have a C binding.
+//
+//*****************************************************************************
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+//*****************************************************************************
+//
+// Defines for the hardware resources used by the pushbuttons.
+//
+// The switches are on the following ports/pins:
+//
+// PJ0 - Left Button
+// PJ1 - Right Button
+//
+// The switches tie the GPIO to ground, so the GPIOs need to be configured
+// with pull-ups, and a value of 0 means the switch is pressed.
+//
+//*****************************************************************************
+#define BUTTONS_GPIO_PERIPH     SYSCTL_PERIPH_GPIOJ
+#define BUTTONS_GPIO_BASE       GPIO_PORTJ_BASE
+
+#define NUM_BUTTONS             2
+#define USR_SW1                 GPIO_PIN_0
+#define USR_SW2                 GPIO_PIN_1
+#define LEFT_BUTTON             USR_SW1
+#define RIGHT_BUTTON            USR_SW2
+
+
+#define ALL_BUTTONS             (USR_SW1 | USR_SW2)
+
+//*****************************************************************************
+//
+// Useful macros for detecting button events.
+//
+//*****************************************************************************
+#define BUTTON_PRESSED(button, buttons, changed)                              \
+        (((button) & (changed)) && ((button) & (buttons)))
+
+#define BUTTON_RELEASED(button, buttons, changed)                             \
+        (((button) & (changed)) && !((button) & (buttons)))
+
+//*****************************************************************************
+//
+// If building with a C++ compiler, make all of the definitions in this header
+// have a C binding.
+//
+//*****************************************************************************
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+//*****************************************************************************
+//
+// Functions exported from buttons.c
+//
+//*****************************************************************************
+extern void ButtonsInit(void);
+extern uint8_t ButtonsPoll(uint8_t *pui8Delta,
+                             uint8_t *pui8Raw);
+
+//*****************************************************************************
+//
+// Mark the end of the C bindings section for C++ compilers.
+//
+//*****************************************************************************
+#ifdef __cplusplus
+}
+#endif
+
+//*****************************************************************************
+//
+// Prototypes for the globals exported by this driver.
+//
+//*****************************************************************************
+
+#endif // __BUTTONS_H__
-- 
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