3265d156e4
* Added comments * Added debug logging * Line 724 - now <initial> flag is properly reset upon removal of event detection from GPIO pin
83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
/*
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Copyright (c) 2013 Adafruit
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Original RPi.GPIO Author Ben Croston
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Modified for BBIO Author Justin Cooper
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This file incorporates work covered by the following copyright and
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permission notice, all modified code adopts the original license:
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Copyright (c) 2013 Ben Croston
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#ifndef EVENT_GPIO_H
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#define EVENT_GPIO_H
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#include "adafruit/bbio/error.h"
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#define NO_EDGE 0
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#define RISING_EDGE 1
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#define FALLING_EDGE 2
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#define BOTH_EDGE 3
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#define INPUT 0
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#define OUTPUT 1
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#define ALT0 4
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#define HIGH 1
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#define LOW 0
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#define MAX_FILENAME 60
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#define USR_LED_GPIO_MIN 53
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#define USR_LED_GPIO_MAX 56
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#define USR_LED_RED 66
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#define USR_LED_GREEN 67
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#define BAT25 27
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#define BAT50 11
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#define BAT75 61
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#define BAT100 10000 // Placeholder until I find the real number
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#define WIFI 10001 // Ditto
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#define PUD_OFF 0
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#define PUD_DOWN 1
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#define PUD_UP 2
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BBIO_err gpio_export(unsigned int gpio);
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BBIO_err gpio_unexport(unsigned int gpio);
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void exports_cleanup(void);
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BBIO_err gpio_set_direction(unsigned int gpio, unsigned int in_flag);
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BBIO_err gpio_get_direction(unsigned int gpio, unsigned int *value);
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BBIO_err gpio_set_value(unsigned int gpio, unsigned int value);
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BBIO_err gpio_get_value(unsigned int gpio, unsigned int *value);
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int add_edge_detect(unsigned int gpio, unsigned int edge);
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void remove_edge_detect(unsigned int gpio);
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int add_edge_callback(unsigned int gpio, void (*func)(unsigned int gpio));
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int event_detected(unsigned int gpio);
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int gpio_initial(unsigned int gpio);
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int gpio_event_add(unsigned int gpio);
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int gpio_event_remove(unsigned int gpio);
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int gpio_is_evented(unsigned int gpio);
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int event_initialise(void);
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void event_cleanup(void);
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int blocking_wait_for_edge(unsigned int gpio, unsigned int edge, int timeout);
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#endif
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