368 lines
8.3 KiB
C
368 lines
8.3 KiB
C
/*
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* watch.c
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*
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* Created: 4/25/2021 10:22:10 AM
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* Author: joeycastillo
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*/
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#include "watch.h"
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#include "driver_init.h"
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#include <stdlib.h>
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#include <string.h>
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Watch watch;
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struct io_descriptor *I2C_0_io;
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void watch_init() {
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memset(&watch, 0, sizeof(watch));
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// use switching regulator
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SUPC->VREG.bit.SEL = 1;
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while(!SUPC->STATUS.bit.VREGRDY);
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// TODO: use performance level 0
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// _set_performance_level(0);
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// hri_pm_write_PLCFG_PLDIS_bit(PM, true);
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}
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bool watch_is_display_enabled() {
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return watch.display_enabled;
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}
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bool watch_is_led_enabled() {
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return watch.led_enabled;
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}
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bool watch_is_buzzer_enabled() {
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return watch.buzzer_enabled;
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}
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bool watch_is_calendar_enabled() {
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return watch.calendar_enabled;
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}
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bool watch_is_adc_enabled() {
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return watch.adc_enabled;
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}
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bool watch_is_i2c_enabled() {
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return watch.i2c_enabled;
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}
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bool watch_is_spi_enabled() {
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return watch.spi_enabled;
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}
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bool watch_is_eic_enabled() {
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return watch.eic_enabled;
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}
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bool watch_can_enter_standby() {
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return !watch.led_enabled && !watch.buzzer_enabled && (watch.eic_enabled || watch.calendar_enabled);
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}
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bool watch_can_enter_backup() {
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return watch.calendar_enabled;
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}
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const uint8_t Character_Set[] =
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{
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0b00000000, //
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0b00000000, // !
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0b00100010, // "
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0b00000000, // #
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0b00000000, // $
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0b00000000, // %
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0b01000100, // &
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0b00100000, // '
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0b00000000, // (
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0b00000000, // )
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0b00000000, // *
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0b11000000, // +
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0b00010000, // ,
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0b01000000, // -
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0b00000100, // .
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0b00010010, // /
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0b00111111, // 0
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0b00000110, // 1
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0b01011011, // 2
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0b01001111, // 3
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0b01100110, // 4
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0b01101101, // 5
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0b01111101, // 6
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0b00000111, // 7
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0b01111111, // 8
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0b01101111, // 9
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0b00000000, // :
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0b00000000, // ;
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0b01011000, // <
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0b01001000, // =
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0b01001100, // >
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0b01010011, // ?
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0b11111111, // @
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0b01110111, // A
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0b01111111, // B
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0b00111001, // C
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0b00111111, // D
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0b01111001, // E
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0b01110001, // F
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0b00111101, // G
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0b01110110, // H
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0b10001001, // I
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0b00001110, // J
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0b11101010, // K
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0b00111000, // L
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0b10110111, // M
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0b00110111, // N
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0b00111111, // O
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0b01110011, // P
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0b01100111, // Q
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0b11110111, // R
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0b01101101, // S
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0b10000001, // T
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0b00111110, // U
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0b00111110, // V
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0b10111110, // W
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0b01111110, // X
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0b01101110, // Y
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0b00011011, // Z
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0b00111001, // [
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0b00100100, // backslash
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0b00001111, // ]
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0b00100110, // ^
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0b00001000, // _
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0b00000010, // `
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0b01011111, // a
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0b01111100, // b
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0b01011000, // c
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0b01011110, // d
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0b01111011, // e
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0b01110001, // f
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0b01101111, // g
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0b01110100, // h
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0b00010000, // i
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0b01000010, // j
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0b11101010, // k
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0b00110000, // l
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0b10110111, // m
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0b01010100, // n
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0b01011100, // o
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0b01110011, // p
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0b01100111, // q
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0b01010000, // r
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0b01101101, // s
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0b01111000, // t
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0b01100010, // u
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0b01100010, // v
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0b10111110, // w
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0b01111110, // x
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0b01101110, // y
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0b00011011, // z
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0b00111001, // {
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0b00110000, // |
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0b00001111, // }
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0b00000001, // ~
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};
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void watch_enable_display() {
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if (watch.display_enabled) return;
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static const uint64_t segmap[] = {
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0x4e4f0e8e8f8d4d0d, // Top center position 0
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0xc8c4c4c8b4b4b0b, // Top center position 1
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0xc049c00a49890949, // Top right position 0
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0xc048088886874707, // Top right position 1
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0xc053921252139352, // Main display position 0
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0xc054511415559594, // Position 1
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0xc057965616179716, // Position 2
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0xc041804000018a81, // Position 3
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0xc043420203048382, // Position 4
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0xc045440506468584, // Position 5
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};
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watch.num_chars = 10;
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watch.segment_map = &segmap[0];
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SEGMENT_LCD_0_init();
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slcd_sync_enable(&SEGMENT_LCD_0);
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watch.display_enabled = true;
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}
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void watch_display_pixel(uint8_t com, uint8_t seg) {
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slcd_sync_seg_on(&SEGMENT_LCD_0, SLCD_SEGID(com, seg));
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}
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void watch_clear_pixel(uint8_t com, uint8_t seg) {
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slcd_sync_seg_off(&SEGMENT_LCD_0, SLCD_SEGID(com, seg));
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}
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void watch_display_character(uint8_t character, uint8_t position) {
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uint64_t segmap = watch.segment_map[position];
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uint64_t segdata = Character_Set[character - 0x20];
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for (int i = 0; i < 8; i++) {
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uint8_t com = (segmap & 0xFF) >> 6;
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if (com > 2) {
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// COM3 means no segment exists; skip it.
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segmap = segmap >> 8;
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segdata = segdata >> 1;
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continue;
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}
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uint8_t seg = segmap & 0x3F;
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slcd_sync_seg_off(&SEGMENT_LCD_0, SLCD_SEGID(com, seg));
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if (segdata & 1) slcd_sync_seg_on(&SEGMENT_LCD_0, SLCD_SEGID(com, seg));
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segmap = segmap >> 8;
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segdata = segdata >> 1;
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}
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}
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void watch_display_string(char *string, uint8_t position) {
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size_t i = 0;
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while(string[i] != 0) {
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watch_display_character(string[i], position + i);
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i++;
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if (i >= watch.num_chars) break;
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}
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}
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void watch_enable_buttons() {
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EXTERNAL_IRQ_0_init();
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}
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void watch_register_button_callback(const uint32_t pin, ext_irq_cb_t callback) {
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ext_irq_register(pin, callback);
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}
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void watch_enable_led() {
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if (watch.led_enabled) return;
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PWM_0_CLOCK_init();
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PWM_0_PORT_init();
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PWM_0_init();
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TC3->COUNT8.CTRLA.reg = TC_CTRLA_SWRST;
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TC3->COUNT8.CTRLA.bit.MODE |= TC_CTRLA_MODE_COUNT8_Val;
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TC3->COUNT8.PER.reg = 255;
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TC3->COUNT8.WAVE.reg = TC_WAVE_WAVEGEN_NPWM;
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TC3->COUNT8.CTRLA.reg |= TC_CTRLA_ENABLE;
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watch.led_enabled = true;
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watch_set_led_off();
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}
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void watch_disable_led() {
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if (!watch.led_enabled) return;
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gpio_set_pin_function(RED, GPIO_PIN_FUNCTION_OFF);
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gpio_set_pin_function(GREEN, GPIO_PIN_FUNCTION_OFF);
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hri_tc_clear_CTRLA_ENABLE_bit(TC3);
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hri_mclk_clear_APBCMASK_TC3_bit(MCLK);
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watch.led_enabled = false;
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}
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void watch_set_led_color(uint8_t red, uint8_t green) {
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TC3->COUNT8.CC[0].reg = red;
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TC3->COUNT8.CC[1].reg = green;
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}
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void watch_set_led_red() {
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watch_set_led_color(64, 0);
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}
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void watch_set_led_green() {
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watch_set_led_color(0, 64);
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}
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void watch_set_led_off() {
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watch_set_led_color(0, 0);
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}
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void watch_enable_buzzer() {
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PWM_1_init();
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}
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void watch_disable_buzzer() {
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// TODO
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}
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void watch_enable_date_time() {
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if (watch.calendar_enabled) return;
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CALENDAR_0_init();
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calendar_enable(&CALENDAR_0);
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watch.calendar_enabled = true;
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}
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void watch_set_date_time(struct calendar_date_time date_time) {
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calendar_set_date(&CALENDAR_0, &date_time.date);
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calendar_set_time(&CALENDAR_0, &date_time.time);
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}
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void watch_get_date_time(struct calendar_date_time *date_time) {
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calendar_get_date_time(&CALENDAR_0, date_time);
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}
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static ext_irq_cb_t tick_user_callback;
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static void tick_callback(struct calendar_dev *const dev) {
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tick_user_callback();
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}
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void watch_enable_tick(ext_irq_cb_t callback) {
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tick_user_callback = callback;
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// TODO: rename this method to reflect that it now sets the PER7 interrupt.
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_tamper_register_callback(&CALENDAR_0.device, &tick_callback);
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}
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void watch_enable_analog(const uint8_t pin) {
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if (!watch.adc_enabled) ADC_0_init();
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switch (pin) {
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case A0:
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gpio_set_pin_function(A0, PINMUX_PB04B_ADC_AIN12);
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break;
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case A1:
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gpio_set_pin_function(A1, PINMUX_PB01B_ADC_AIN9);
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break;
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case A2:
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gpio_set_pin_function(A2, PINMUX_PB02B_ADC_AIN10);
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break;
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default:
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return;
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}
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gpio_set_pin_direction(pin, GPIO_DIRECTION_OFF);
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}
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void watch_enable_digital_input(const uint8_t pin) {
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gpio_set_pin_direction(pin, GPIO_DIRECTION_IN);
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gpio_set_pin_function(pin, GPIO_PIN_FUNCTION_OFF);
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}
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void watch_enable_digital_output(const uint8_t pin) {
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gpio_set_pin_direction(pin, GPIO_DIRECTION_OUT);
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gpio_set_pin_function(pin, GPIO_PIN_FUNCTION_OFF);
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}
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struct io_descriptor *I2C_0_io;
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void watch_enable_i2c() {
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if (watch.i2c_enabled) return;
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I2C_0_init();
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i2c_m_sync_get_io_descriptor(&I2C_0, &I2C_0_io);
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i2c_m_sync_enable(&I2C_0);
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}
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void watch_i2c_send(int16_t addr, uint8_t *buf, uint16_t length) {
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i2c_m_sync_set_slaveaddr(&I2C_0, addr, I2C_M_SEVEN);
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io_write(I2C_0_io, buf, length);
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}
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void watch_i2c_receive(int16_t addr, uint8_t *buf, uint16_t length) {
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i2c_m_sync_set_slaveaddr(&I2C_0, addr, I2C_M_SEVEN);
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io_read(I2C_0_io, buf, length);
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}
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