diff options
Diffstat (limited to 'nuttx/configs/px4io/include/drv_ppm_input.h')
-rw-r--r-- | nuttx/configs/px4io/include/drv_ppm_input.h | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/nuttx/configs/px4io/include/drv_ppm_input.h b/nuttx/configs/px4io/include/drv_ppm_input.h deleted file mode 100644 index 78c424154..000000000 --- a/nuttx/configs/px4io/include/drv_ppm_input.h +++ /dev/null @@ -1,100 +0,0 @@ -/**************************************************************************** - * - * Copyright (C) 2012 PX4 Development Team. All rights reserved. - * - * 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 PX4 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. - * - ****************************************************************************/ - -/** - * @file PPM input decoder. - * - * Works in conjunction with the HRT driver, exports a device node - * and a message queue (if message queues are enabled). - * - * Note that the device node supports both blocking and non-blocking - * opens, but actually never blocks. A nonblocking open will return - * EWOULDBLOCK if there has not been an update since the last read, - * while a blocking open will always return the most recent data. - */ - -#include <sys/ioctl.h> - -#define _PPM_INPUT_BASE 0x7600 - -/* - * Fetch the state of the PPM input detector. - */ -#define PPM_INPUT_STATUS _IOC(_PPM_INPUT_BASE, 0) - -typedef enum { - PPM_STATUS_NO_SIGNAL = 0, - PPM_STATUS_SIGNAL_CURRENT = 1, -} ppm_input_status_t; - -/* - * Fetch the number of channels decoded (only valid when PPM_STATUS_SIGNAL_CURRENT). - */ -#define PPM_INPUT_CHANNELS _IOC(_PPM_INPUT_BASE, 1) - -typedef int ppm_input_channel_count_t; - -/* - * Device node - */ -#define PPM_DEVICE_NODE "/dev/ppm_input" - -/* - * Message queue; if message queues are supported, PPM input data is - * supplied to the queue when a frame is decoded. - */ -#ifndef CONFIG_DISABLE_MQUEUE -# define PPM_MESSAGE_QUEUE "ppm_input" -#endif - -/* - * Private hook from the HRT driver to the PPM decoder. - * - * This function is called for every edge of the incoming PPM - * signal. - * - * @param reset If true, the decoder should be reset (e.g.) - * capture failure was detected. - * @param count The counter value at which the edge - * was captured. - */ - -void ppm_input_decode(bool reset, uint16_t count); - -/* - * PPM input initialisation function. - * - * If message queues are enabled, and mq_name is not NULL, received input - * is posted to the message queue as an array of 16-bit unsigned channel values. - */ -int ppm_input_init(const char *mq_name);
\ No newline at end of file |