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/******************************************************************************
* Copyright 2018 The Apollo Authors. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*****************************************************************************/
#ifndef ADV_TRIGGER_H
#define ADV_TRIGGER_H
#ifdef __cplusplus
extern "C" {
#endif
#include "linux/zynq_api.h"
#define LIB_NAME "adv_trigger"
/*
* @brief Main functions to control hardware triggers.
*
* @param video_path: path of the video device file, e.g. /dev/video0.
* When NULL, all triggers are enabled/disabled.
* @param fps: FPS (frame-per-second) for the specified video device (camera).
* The supported values are: 1 ~ 30.
* All other values set FPS to the default value 30.
* @param internal: source of the PPS.
* 0: use GPS generated PPS;
* 1: use FPGA internal PPS.
*
* @return:
* 0: success;
* non-0: there is an error.
*/
int adv_trigger_enable(const char *video_path,
unsigned char fps, unsigned char internal);
int adv_trigger_disable(const char *video_path);
int adv_trigger_delay_ctl(const char *video_path, int action,
unsigned int *trigger_delay, unsigned int *exp_time);
#define FLAG_GPS_VALID (1 << 0)
#define FLAG_PPS_VALID (1 << 1)
/* FPGA board trigger status. */
struct adv_trigger_status {
struct {
int flags;
char zdev_name[ZYNQ_DEV_NAME_LEN];
zynq_trigger_t fpd_triggers[ZYNQ_FPD_TRIG_NUM];
} status[ZYNQ_TRIGGER_DEV_NUM];
};
/*
* @brief Gets the status of all triggers.
*
* @param status: pointer to the struct adv_zynq_status.
*
* @return:
* 0: successful;
* non-0: there is an error.
*/
int adv_trigger_get_status(struct adv_trigger_status *status);
const char *adv_trigger_version(void);
#ifdef __cplusplus
}
#endif
#endif /* ADV_TRIGGER_H */