mirror of https://github.com/ArduPilot/ardupilot
67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
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/*
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <AP_HAL/AP_HAL.h>
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#include <AP_Param/AP_Param.h>
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// allow buttons for up to 4 pins
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#define AP_BUTTON_NUM_PINS 4
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// how often we send reports
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#define AP_BUTTON_REPORT_PERIOD_MS 1000
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class AP_Button {
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public:
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// constructor
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AP_Button(void);
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static const struct AP_Param::GroupInfo var_info[];
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// update button state and send messages, called periodically by main loop
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void update(void);
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private:
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AP_Int8 enable;
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AP_Int8 pin[AP_BUTTON_NUM_PINS];
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// number of seconds to send change notifications
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AP_Int16 report_send_time;
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// last button press mask
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uint8_t last_mask;
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// when the mask last changed
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uint64_t last_change_time_ms;
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// time of last report
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uint32_t last_report_ms;
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// has the timer been installed?
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bool initialised:1;
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// called by timer thread
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void timer_update(void);
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// get current mask
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uint8_t get_mask(void);
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// send a BUTTON_CHANGE report
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void send_report(void);
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// setup pins as pullup input
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void setup_pins();
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};
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