145 lines
5.3 KiB
C
145 lines
5.3 KiB
C
/*
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* MIT License
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*
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* Copyright (c) 2020-2024 Joey Castillo
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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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#include "pins.h"
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#include "watch_slcd.h"
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#include "watch_common_display.h"
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#include "slcd.h"
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//////////////////////////////////////////////////////////////////////////////////////////
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// Segmented Display
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static uint16_t _slcd_framerate = 0;
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static uint16_t _slcd_fc_min_ms_bypass = 0;
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void watch_enable_display(void) {
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HAL_GPIO_SLCD0_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD1_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD2_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD3_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD4_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD5_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD6_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD7_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD8_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD9_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD10_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD11_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD12_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD13_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD14_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD15_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD16_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD17_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD18_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD19_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD20_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD21_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD22_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD23_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD24_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD25_pmuxen(HAL_GPIO_PMUX_B);
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HAL_GPIO_SLCD26_pmuxen(HAL_GPIO_PMUX_B);
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#ifdef USE_CUSTOM_LCD
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// Original famous Casio LCD: 1/3 bias, 1/4 duty with a frame rate of 32 Hz
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slcd_init(LCD_PIN_ENABLE, SLCD_BIAS_THIRD, SLCD_DUTY_4_COMMON, SLCD_PRESCALER_DIV64, SLCD_CLOCKDIV_4);
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// exact frame rate is: 32768 / (4 * 64 * 4) ≈ 32 Hz
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_slcd_framerate = 32;
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#else
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// Original famous Casio LCD: 1/3 bias, 1/3 duty with a frame rate of ~34 Hz
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slcd_init(LCD_PIN_ENABLE, SLCD_BIAS_THIRD, SLCD_DUTY_3_COMMON, SLCD_PRESCALER_DIV64, SLCD_CLOCKDIV_5);
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// exact frame rate is: 32768 / (3 * 64 * 5) ≈ 34.13 Hz
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_slcd_framerate = 34;
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#endif
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// calculate the smallest duration we can time before we have to engage the frame counter prescaler bypass
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_slcd_fc_min_ms_bypass = 32 * (1000 / _slcd_framerate);
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slcd_clear();
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slcd_set_contrast(6);
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slcd_enable();
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}
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inline void watch_set_pixel(uint8_t com, uint8_t seg) {
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slcd_set_segment(com, seg);
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}
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inline void watch_clear_pixel(uint8_t com, uint8_t seg) {
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slcd_clear_segment(com, seg);
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}
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void watch_clear_display(void) {
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slcd_clear();
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}
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void watch_start_character_blink(char character, uint32_t duration) {
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slcd_set_frame_counter_enabled(0, false);
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if (duration <= _slcd_fc_min_ms_bypass) {
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slcd_configure_frame_counter(0, (duration / (1000 / _slcd_framerate)) - 1, false);
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} else {
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slcd_configure_frame_counter(0, ((duration / (1000 / _slcd_framerate)) / 8 - 1), true);
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}
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slcd_set_frame_counter_enabled(0, true);
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watch_display_character(character, 7);
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watch_clear_pixel(2, 10); // clear segment B of position 7 since it can't blink
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slcd_set_blink_enabled(false);
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slcd_configure_blink(false, 0x07, 0x07, 0);
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slcd_set_blink_enabled(true);
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}
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void watch_stop_blink(void) {
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slcd_set_frame_counter_enabled(0, false);
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slcd_set_blink_enabled(false);
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}
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void watch_start_tick_animation(uint32_t duration) {
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watch_display_character(' ', 8);
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slcd_set_frame_counter_enabled(1, false);
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slcd_set_circular_shift_animation_enabled(false);
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if (duration <= _slcd_fc_min_ms_bypass) {
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slcd_configure_frame_counter(1, (duration / (1000 / _slcd_framerate)) - 1, false);
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} else {
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slcd_configure_frame_counter(1, ((duration / (1000 / _slcd_framerate)) / 8 - 1), true);
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}
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slcd_set_frame_counter_enabled(1, true);
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slcd_configure_circular_shift_animation(0b00000001, 2, SLCD_CSRSHIFT_LEFT, 1);
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slcd_set_circular_shift_animation_enabled(true);
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}
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bool watch_tick_animation_is_running(void) {
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// TODO: wrap this in gossamer call
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return SLCD->CTRLD.bit.CSREN;
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}
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void watch_stop_tick_animation(void) {
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slcd_set_circular_shift_animation_enabled(false);
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watch_display_character(' ', 8);
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}
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