Konrad Rieck
c742e92e7f
state->settings was malloc'd in lis2dw_monitor_face_setup() outside the guard that only runs on first allocation of the face's context. setup() is called again every time the watch wakes from deep sleep (movement.c's app_setup() re-runs watch_faces[i].setup() for every face on wake), so each wake cycle allocated a new settings array and abandoned the previous pointer with no matching free. Since NUM_SETTINGS is a compile-time constant, make settings a fixed-size array embedded directly in lis2dw_monitor_state_t instead of a separately malloc'd pointer, so it's allocated exactly once along with the rest of the state and never leaks.
85 lines
3.1 KiB
C
85 lines
3.1 KiB
C
/*
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* MIT License
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*
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* Copyright (c) 2025 Konrad Rieck
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies 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 included in all
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* 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, 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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/*
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* This watch face displays the current reading of the LIS2DW12 accelerometer.
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* The axis (x,y,z) can be selected using the alarm button.
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*
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* A long press on the light button allows to configure the sensor, including
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* its mode, data rate, low power mode, bandwidth filtering, range, filter type,
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* and low noise mode.
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*
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* The watch face is mainly designed for experimenting with the sensor and
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* configuring it for other developing other watch faces.
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*/
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#include "movement.h"
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typedef enum {
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PAGE_LIS2DW_MONITOR,
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PAGE_LIS2DW_SETTINGS,
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} lis2dw_monitor_page_t;
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typedef struct {
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lis2dw_mode_t mode;
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lis2dw_data_rate_t data_rate;
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lis2dw_low_power_mode_t low_power;
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lis2dw_bandwidth_filtering_mode_t bwf_mode;
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lis2dw_range_t range;
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lis2dw_filter_t filter;
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bool low_noise;
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} lis2dw_device_state_t;
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typedef struct {
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void (*display)(void *, uint8_t);
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void (*advance)(void *);
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} lis2dw_settings_t;
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/* Number of settings pages */
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#define NUM_SETTINGS 7
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typedef struct {
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uint8_t axis:2; /* Axis to display */
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lis2dw_reading_t reading; /* Current reading */
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lis2dw_monitor_page_t page; /* Displayed page */
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lis2dw_device_state_t ds; /* Device state */
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uint8_t settings_page:3; /* Subpage in settings */
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lis2dw_settings_t settings[NUM_SETTINGS]; /* Settings config */
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uint8_t show_title:6; /* Display face title */
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} lis2dw_monitor_state_t;
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void lis2dw_monitor_face_setup(uint8_t watch_face_index, void **context_ptr);
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void lis2dw_monitor_face_activate(void *context);
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bool lis2dw_monitor_face_loop(movement_event_t event, void *context);
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void lis2dw_monitor_face_resign(void *context);
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movement_watch_face_advisory_t lis2dw_monitor_face_advise(void *context);
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#define lis2dw_monitor_face ((const watch_face_t){ \
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lis2dw_monitor_face_setup, \
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lis2dw_monitor_face_activate, \
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lis2dw_monitor_face_loop, \
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lis2dw_monitor_face_resign, \
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lis2dw_monitor_face_advise, \
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})
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