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84 lines
2.3 KiB
84 lines
2.3 KiB
/****************************************************************************** |
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* The GPLv3 License |
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* |
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* |
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* Permission is hereby granted, free of charge, to any person |
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* obtaining a copy of this software and associated documentation |
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* files (the "Software"), to deal in the Software without |
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* restriction, including without limitation the rights to use, copy, |
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* 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 |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be |
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* included in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* 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 _PWM_IN_H_ |
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#define _PWM_IN_H_ |
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#include <hal.h> |
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#include "hal_types.h" |
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#include <stdbool.h> |
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#include <strings.h> |
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#include "timer.h" |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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typedef struct PULSE { |
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unsigned int length:15; |
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bool state:1; |
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} Pulse; |
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#define PULSES_QUEUE_SIZE (25*12*2) // 1 full frame by 25 bytes (12 bits, 2 measures per bit) each |
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#include "ring_buffer_pulse.h" |
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struct PPM_State { |
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Handler handler; |
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uint32_t last_pulse; // time of edge |
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volatile pulse_buffer pulses; // ring buffer |
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uint16_t last_val; // length |
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uint8_t state; // 1 or 0 |
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Pulse pulse_mem[PULSES_QUEUE_SIZE]; // memory |
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}; |
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extern struct PPM_State PPM_Inputs[]; |
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struct TIM_Channel { |
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uint8_t pin; // pin number |
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}; |
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extern const struct TIM_Channel PWM_Channels[]; |
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#define PWM_CHANNELS (sizeof(PWM_Channels) / sizeof(struct TIM_Channel) ) |
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void pwmInit(bool ppmsum); |
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bool getPPM_Pulse(Pulse *p, uint8_t ch); |
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uint16_t getPPM_count(uint8_t ch); |
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static inline void pwm_setHandler(Handler handler, uint8_t ch){ |
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PPM_Inputs[ch].handler = handler; |
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} |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif |
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