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| 1 /* |
| 2 * Copyright (c) 2009 NVIDIA Corporation. |
| 3 * All rights reserved. |
| 4 * |
| 5 * Redistribution and use in source and binary forms, with or without |
| 6 * modification, are permitted provided that the following conditions are met: |
| 7 * |
| 8 * Redistributions of source code must retain the above copyright notice, |
| 9 * this list of conditions and the following disclaimer. |
| 10 * |
| 11 * Redistributions in binary form must reproduce the above copyright notice, |
| 12 * this list of conditions and the following disclaimer in the documentation |
| 13 * and/or other materials provided with the distribution. |
| 14 * |
| 15 * Neither the name of the NVIDIA Corporation nor the names of its contributors |
| 16 * may be used to endorse or promote products derived from this software |
| 17 * without specific prior written permission. |
| 18 * |
| 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| 23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 * POSSIBILITY OF SUCH DAMAGE. |
| 30 * |
| 31 */ |
| 32 |
| 33 /** |
| 34 * @file |
| 35 * <b>NVIDIA Tegra ODM Kit: |
| 36 * Keyboard Interface</b> |
| 37 * |
| 38 * @b Description: Defines the interface for the ODM keyboard. |
| 39 * |
| 40 */ |
| 41 |
| 42 #ifndef INCLUDED_NVODM_KEYBOARD_H |
| 43 #define INCLUDED_NVODM_KEYBOARD_H |
| 44 |
| 45 #include "nvodm_services.h" |
| 46 |
| 47 /** |
| 48 * @defgroup nvodm_keyboard ODM Keyboard Interface |
| 49 * |
| 50 * This is the interface for the ODM keyboard. See also the |
| 51 * \link nvodm_kbc Keyboard Controller Adaptation Interface\endlink and |
| 52 * the \link nvodm_query_kbc ODM Query KBC Interface\endlink. |
| 53 * @ingroup nvodm_adaptation |
| 54 * @{ |
| 55 */ |
| 56 |
| 57 /** |
| 58 * Initializes the ODM keyboard. |
| 59 * |
| 60 * @return NV_TRUE if successful, or NV_FALSE otherwise. |
| 61 */ |
| 62 NvBool NvOdmKeyboardInit(void); |
| 63 |
| 64 /** |
| 65 * Releases the ODM keyboard resources that were acquired during the |
| 66 * call to NvOdmKeyboardInit(). |
| 67 */ |
| 68 void NvOdmKeyboardDeInit(void); |
| 69 |
| 70 /// Defines the scan code break flag. |
| 71 #define NV_ODM_SCAN_CODE_FLAG_BREAK (0x1) |
| 72 |
| 73 /// Defines the scan code make flag. |
| 74 #define NV_ODM_SCAN_CODE_FLAG_MAKE (0x2) |
| 75 |
| 76 /** |
| 77 * Gets the key data from the ODM keyboard. This function must be called in |
| 78 * an infinite loop to continue receiving the key scan codes. |
| 79 * |
| 80 * @param pKeyScanCode A pointer to the returned scan code of the key. |
| 81 * @param pScanCodeFlags A pointer to the returned value specifying scan code |
| 82 * make/break flags (may be ORed for special code that combines make and |
| 83 * break sequences). |
| 84 * @param Timeout (Optional) Specifies the timeout in msec. Can be set |
| 85 * to zero if no timeout needs to be used. |
| 86 * |
| 87 * @return NV_TRUE if successful, or NV_FALSE otherwise. |
| 88 */ |
| 89 NvBool NvOdmKeyboardGetKeyData(NvU32 *pKeyScanCode, NvU8 *pScanCodeFlags, NvU32
Timeout); |
| 90 |
| 91 /** |
| 92 * Initializes the hold switch. |
| 93 * |
| 94 * @return NV_TRUE if successful, or NV_FALSE otherwise. |
| 95 */ |
| 96 NvBool NvOdmHoldSwitchInit(void); |
| 97 |
| 98 /** |
| 99 * Releases all the resources allocated during the initialization of the hold |
| 100 * switch. |
| 101 */ |
| 102 void NvOdmHoldSwitchDeInit(void); |
| 103 |
| 104 /** |
| 105 * Toggles LEDs on the keyboard. |
| 106 * @param LedId The LEDs to toggle. |
| 107 * @return NV_TRUE if successful, or NV_FALSE otherwise. |
| 108 */ |
| 109 NvBool NvOdmKeyboardToggleLights(NvU32 LedId); |
| 110 |
| 111 /** |
| 112 * Keyboard power handler. |
| 113 * @param PowerDown Flag to indicate power down or power up. |
| 114 * @return NV_TRUE if successful, or NV_FALSE otherwise. |
| 115 */ |
| 116 NvBool NvOdmKeyboardPowerHandler(NvBool PowerDown); |
| 117 |
| 118 /** @} */ |
| 119 |
| 120 #endif // INCLUDED_NVODM_KEYBOARD_H |
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