input: misc: add input driver for tegra scrollwheel ODM kit

Change-Id: I79ca91a26094567207eb55837b908086209cfcf2
Reviewed-on: http://git-master/r/1829
Reviewed-by: Gary King <gking@nvidia.com>
Tested-by: Gary King <gking@nvidia.com>

1 files changed, 147 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/include/nvodm_scrollwheel.h b/arch/arm/mach-tegra/include/nvodm_scrollwheel.h
new file mode 100644
index 000000000000..e5380f26938d
--- /dev/null
+++ b/arch/arm/mach-tegra/include/nvodm_scrollwheel.h
@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2006-2009 NVIDIA Corporation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of the NVIDIA Corporation nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+/** 
+ * @file
+ * <b>NVIDIA Tegra ODM Kit:
+ *         Scroll Wheel Interface</b>
+ *
+ * @b Description: Defines the ODM adaptation interface for scroll wheel devices.
+ * 
+ */
+
+#ifndef INCLUDED_NVODM_SCROLLWHEEL_H
+#define INCLUDED_NVODM_SCROLLWHEEL_H
+
+#if defined(__cplusplus)
+extern "C"
+{
+#endif
+
+#include "nvodm_services.h"
+
+/**
+ * @defgroup nvodm_scrollwheel Scroll Wheel Adaptation Interface
+ * 
+ * This is the scroll wheel ODM adaptation interface. 
+ * 
+ * @ingroup nvodm_adaptation
+ * @{
+ */
+
+/**
+ * Defines an opaque handle that exists for each scroll wheel device in the
+ * system, each of which is defined by the customer implementation.
+ */
+typedef struct NvOdmScrollWheelRec *NvOdmScrollWheelHandle;
+
+/**
+ * Defines the events generated by the scroll wheel.
+ */
+typedef enum
+{
+    /// Indicates no event.
+    NvOdmScrollWheelEvent_None = 0,
+    
+    /// Indicates the scroll up event.
+    NvOdmScrollWheelEvent_RotateClockWise = 0x1,
+    
+    /// Indicates the scroll down event.
+    NvOdmScrollWheelEvent_RotateAntiClockWise = 0x2,
+    
+    /// Indicates the key press event.
+    NvOdmScrollWheelEvent_Press = 0x4,
+    
+    /// Indicates the release event.
+    NvOdmScrollWheelEvent_Release = 0x8,
+
+    /// Indicates the scroll up event.
+    NvOdmScrollWheelEvent_Up = 0x10,
+
+    /// Indicates the scroll down event.
+    NvOdmScrollWheelEvent_Down = 0x20,
+
+    /// Indicates the scroll right event.
+    NvOdmScrollWheelEvent_Right = 0x40,
+
+    /// Indicates the scroll left event.
+    NvOdmScrollWheelEvent_Left = 0x80,
+    
+    NvOdmScrollWheelEvent_Force32 = 0x7FFFFFFF
+} NvOdmScrollWheelEvent;
+
+
+
+/**
+ * Gets a handle to the scroll wheel device.
+ *
+ * @param hSema A handle to the semaphore to be signalled when 
+ * there is an event.
+ * @param KeyEvents Specifies the ORed version of all the events for which
+ * the client wants to register.
+ *
+ * @return A handle to the scroll wheel device.
+ */
+NvOdmScrollWheelHandle 
+NvOdmScrollWheelOpen( 
+    NvOdmOsSemaphoreHandle hSema,
+    NvOdmScrollWheelEvent KeyEvents);
+
+/**
+ * Closes the scroll wheel handle. 
+ *
+ * @param hOdmScrollWheel The scroll wheel handle to be closed.
+ */
+void NvOdmScrollWheelClose(NvOdmScrollWheelHandle hOdmScrollWheel);
+
+
+/**
+ * Gets the pending event information. 
+ *
+ * This API should be called when the semaphore
+ * that the client is waiting on is signalled.
+ *
+ * @param hOdmScrollWheel A handle to the scroll wheel.
+ * @return The type of event. If there are no pending events,
+ * returns the 'none' event. If there are more than one events, 
+ * returns the ORed version of the events.
+ *
+ */
+NvOdmScrollWheelEvent NvOdmScrollWheelGetEvent(NvOdmScrollWheelHandle hOdmScrollWheel);
+
+#if defined(__cplusplus)
+}
+#endif
+
+/** @} */
+
+#endif // INCLUDED_NVODM_SCROLLWHEEL_H