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rudimentary PWP capture with infrared sesor

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joeycastillo 2024-10-11 07:21:02 -04:00
parent 06aed9749f
commit 0567621781
4 changed files with 172 additions and 0 deletions
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1
movement_faces.h
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@ -40,4 +40,5 @@
#include "voltage_face.h"
#include "set_time_face.h"
#include "preferences_face.h"
#include "light_sensor_face.h"
// New includes go above this line.

1
watch-faces.mk
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@ -15,4 +15,5 @@ SRCS += \
./watch-faces/sensor/voltage_face.c \
./watch-faces/settings/set_time_face.c \
./watch-faces/settings/preferences_face.c \
./watch-faces/demo/light_sensor_face.c \
# New watch faces go above this line.

118
watch-faces/demo/light_sensor_face.c Normal file
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@ -0,0 +1,118 @@
/*
* MIT License
*
* Copyright (c) 2024 Joey Castillo
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdlib.h>
#include <string.h>
#include "light_sensor_face.h"
#include "tc.h"
#include "eic.h"
#include "usb.h"
void light_sensor_face_setup(uint8_t watch_face_index, void ** context_ptr) {
(void) watch_face_index;
if (*context_ptr == NULL) {
*context_ptr = malloc(sizeof(light_sensor_state_t));
memset(*context_ptr, 0, sizeof(light_sensor_state_t));
// Do any one-time tasks in here; the inside of this conditional happens only at boot.
}
}
void light_sensor_face_activate(void *context) {
light_sensor_state_t *state = (light_sensor_state_t *)context;
(void) state;
HAL_GPIO_IR_ENABLE_out();
HAL_GPIO_IR_ENABLE_clr();
HAL_GPIO_IRSENSE_in();
eic_configure_pin(HAL_GPIO_IRSENSE_pin(), INTERRUPT_TRIGGER_FALLING);
eic_enable_event(HAL_GPIO_IRSENSE_pin());
EVSYS->USER[EVSYS_ID_USER_TC1_EVU].reg = EVSYS_USER_CHANNEL(1 + 1);
// Set up channel 1:
EVSYS->CHANNEL[1].reg = EVSYS_CHANNEL_EVGEN(EVSYS_ID_GEN_EIC_EXTINT_4) | // External interrupt 4 generates events on channel 1...
EVSYS_CHANNEL_RUNSTDBY | // even in standby mode...
EVSYS_CHANNEL_PATH_ASYNCHRONOUS; // on the asynchronous path (event drives action directly)
tc_init(1, GENERIC_CLOCK_0, usb_is_enabled() ? TC_PRESCALER_DIV16 : TC_PRESCALER_DIV8);
tc_set_counter_mode(1, TC_COUNTER_MODE_16BIT);
TC1->COUNT16.CTRLA.bit.CAPTEN0 = 1;
TC1->COUNT16.CTRLA.bit.CAPTEN1 = 1;
TC1->COUNT16.EVCTRL.reg = TC_EVCTRL_TCEI | TC_EVCTRL_EVACT_PWP; // Event should capture pulse width and period
tc_set_counter_mode(1, TC_COUNTER_MODE_16BIT);
tc_enable(1);
movement_request_tick_frequency(64);
}
bool light_sensor_face_loop(movement_event_t event, void *context) {
light_sensor_state_t *state = (light_sensor_state_t *)context;
(void) state;
bool light_level = HAL_GPIO_IRSENSE_read();
uint16_t pulsewidth = TC1->COUNT16.CC[0].reg;
uint16_t period = TC1->COUNT16.CC[1].reg;
if (period > 10000) printf("Light %d, %d, %d\n", light_level, pulsewidth >> 3, period >> 3);
switch (event.event_type) {
case EVENT_NONE:
case EVENT_ACTIVATE:
// Show your initial UI here.
break;
case EVENT_TICK:
// If needed, update your display here.
break;
case EVENT_LIGHT_BUTTON_UP:
// You can use the Light button for your own purposes. Note that by default, Movement will also
// illuminate the LED in response to EVENT_LIGHT_BUTTON_DOWN; to suppress that behavior, add an
// empty case for EVENT_LIGHT_BUTTON_DOWN.
break;
case EVENT_ALARM_BUTTON_UP:
// Just in case you have need for another button.
break;
case EVENT_TIMEOUT:
// Your watch face will receive this event after a period of inactivity. If it makes sense to resign,
// you may uncomment this line to move back to the first watch face in the list:
// movement_move_to_face(0);
break;
case EVENT_LOW_ENERGY_UPDATE:
// If you did not resign in EVENT_TIMEOUT, you can use this event to update the display once a minute.
// Avoid displaying fast-updating values like seconds, since the display won't update again for 60 seconds.
// You should also consider starting the tick animation, to show the wearer that this is sleep mode:
// watch_start_sleep_animation(500);
break;
default:
// Movement's default loop handler will step in for any cases you don't handle above:
// * EVENT_LIGHT_BUTTON_DOWN lights the LED
// * EVENT_MODE_BUTTON_UP moves to the next watch face in the list
// * EVENT_MODE_LONG_PRESS returns to the first watch face (or skips to the secondary watch face, if configured)
// You can override any of these behaviors by adding a case for these events to this switch statement.
return movement_default_loop_handler(event);
}
return false;
}
void light_sensor_face_resign(void *context) {
(void) context;
// handle any cleanup before your watch face goes off-screen.
}

52
watch-faces/demo/light_sensor_face.h Normal file
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@ -0,0 +1,52 @@
/*
* MIT License
*
* Copyright (c) 2024 Joey Castillo
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#pragma once
#include "movement.h"
/*
* LIGHT SENSOR PLAYGROUND
*
* Temporary watch face for playing with the light sensor.
*
*/
typedef struct {
// Anything you need to keep track of, put it here!
uint8_t unused;
} light_sensor_state_t;
void light_sensor_face_setup(uint8_t watch_face_index, void ** context_ptr);
void light_sensor_face_activate(void *context);
bool light_sensor_face_loop(movement_event_t event, void *context);
void light_sensor_face_resign(void *context);
#define light_sensor_face ((const watch_face_t){ \
light_sensor_face_setup, \
light_sensor_face_activate, \
light_sensor_face_loop, \
light_sensor_face_resign, \
NULL, \
})