| /**************************************************************************** |
| * arch/arm/src/tiva/tiva_qencoder.h |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| * SPDX-FileCopyrightText: 2016 Young Mu. All rights reserved. |
| * SPDX-FileContributor: Young Mu <young.mu@aliyun.com> |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * 3. Neither the name NuttX 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 OWNER 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. |
| * |
| ****************************************************************************/ |
| |
| #ifndef __ARCH_ARM_SRC_TIVA_TIVA_QENCODER_H |
| #define __ARCH_ARM_SRC_TIVA_TIVA_QENCODER_H |
| |
| /**************************************************************************** |
| * Included Files |
| ****************************************************************************/ |
| |
| #include <nuttx/sensors/qencoder.h> |
| |
| /**************************************************************************** |
| * Pre-processor Definitions |
| ****************************************************************************/ |
| |
| #define QEIOC_DIRECTION _QEIOC(QE_TIVA_FIRST) |
| #define QEIOC_VELOCITY _QEIOC(QE_TIVA_FIRST+1) |
| #define QEIOC_RESETATPPR _QEIOC(QE_TIVA_FIRST+2) |
| #define QEIOC_RESETATMAXPOS _QEIOC(QE_TIVA_FIRST+3) |
| #define QEIOC_RESETATINDEX _QEIOC(QE_TIVA_FIRST+4) |
| |
| /**************************************************************************** |
| * Public Function Prototypes |
| ****************************************************************************/ |
| |
| struct qe_lowerhalf_s *tiva_qei_initialize(int id); |
| |
| #endif /* __ARCH_ARM_SRC_TIVA_TIVA_QENCODER_H */ |
