566 lines
16 KiB
C
566 lines
16 KiB
C
#include "watch.h"
|
|
#include <stdlib.h>
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
// User callbacks and other definitions
|
|
|
|
ext_irq_cb_t btn_alarm_callback;
|
|
ext_irq_cb_t a2_callback;
|
|
ext_irq_cb_t d1_callback;
|
|
|
|
static void extwake_callback(uint8_t reason);
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
// Initialization
|
|
|
|
void _watch_init() {
|
|
// disable the LED pin (it may have been enabled by the bootloader)
|
|
watch_disable_digital_output(RED);
|
|
|
|
// Use switching regulator for lower power consumption.
|
|
SUPC->VREG.bit.SEL = 1;
|
|
while(!SUPC->STATUS.bit.VREGRDY);
|
|
|
|
// External wake depends on RTC; calendar is a required module.
|
|
CALENDAR_0_init();
|
|
calendar_enable(&CALENDAR_0);
|
|
|
|
// Not sure if this belongs in every app -- is there a power impact?
|
|
delay_driver_init();
|
|
|
|
// set up state
|
|
btn_alarm_callback = NULL;
|
|
a2_callback = NULL;
|
|
d1_callback = NULL;
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
// Segmented Display
|
|
|
|
static const uint8_t Character_Set[] =
|
|
{
|
|
0b00000000, //
|
|
0b00000000, // ! (unused)
|
|
0b00100010, // "
|
|
0b01100011, // # (degree symbol, hash mark doesn't fit)
|
|
0b00000000, // $ (unused)
|
|
0b00000000, // % (unused)
|
|
0b01000100, // & ("lowercase 7" for positions 4 and 6)
|
|
0b00100000, // '
|
|
0b00111001, // (
|
|
0b00001111, // )
|
|
0b00000000, // * (unused)
|
|
0b11000000, // + (only works in position 0)
|
|
0b00000100, // ,
|
|
0b01000000, // -
|
|
0b01000000, // . (same as -, semantically most useful)
|
|
0b00010010, // /
|
|
0b00111111, // 0
|
|
0b00000110, // 1
|
|
0b01011011, // 2
|
|
0b01001111, // 3
|
|
0b01100110, // 4
|
|
0b01101101, // 5
|
|
0b01111101, // 6
|
|
0b00000111, // 7
|
|
0b01111111, // 8
|
|
0b01101111, // 9
|
|
0b00000000, // : (unused)
|
|
0b00000000, // ; (unused)
|
|
0b01011000, // <
|
|
0b01001000, // =
|
|
0b01001100, // >
|
|
0b01010011, // ?
|
|
0b11111111, // @ (all segments on)
|
|
0b01110111, // A
|
|
0b01111111, // B
|
|
0b00111001, // C
|
|
0b00111111, // D
|
|
0b01111001, // E
|
|
0b01110001, // F
|
|
0b00111101, // G
|
|
0b01110110, // H
|
|
0b10001001, // I (only works in position 0)
|
|
0b00001110, // J
|
|
0b01110101, // K
|
|
0b00111000, // L
|
|
0b10110111, // M (only works in position 0)
|
|
0b00110111, // N
|
|
0b00111111, // O
|
|
0b01110011, // P
|
|
0b01100111, // Q
|
|
0b11110111, // R (only works in position 1)
|
|
0b01101101, // S
|
|
0b10000001, // T (only works in position 0; set (1, 12) to make it work in position 1)
|
|
0b00111110, // U
|
|
0b00111110, // V
|
|
0b10111110, // W (only works in position 0)
|
|
0b01111110, // X
|
|
0b01101110, // Y
|
|
0b00011011, // Z
|
|
0b00111001, // [
|
|
0b00100100, // backslash
|
|
0b00001111, // ]
|
|
0b00100011, // ^
|
|
0b00001000, // _
|
|
0b00000010, // `
|
|
0b01011111, // a
|
|
0b01111100, // b
|
|
0b01011000, // c
|
|
0b01011110, // d
|
|
0b01111011, // e
|
|
0b01110001, // f
|
|
0b01101111, // g
|
|
0b01110100, // h
|
|
0b00010000, // i
|
|
0b01000010, // j (appears as superscript to work in more positions)
|
|
0b01110101, // k
|
|
0b00110000, // l
|
|
0b10110111, // m (only works in position 0)
|
|
0b01010100, // n
|
|
0b01011100, // o
|
|
0b01110011, // p
|
|
0b01100111, // q
|
|
0b01010000, // r
|
|
0b01101101, // s
|
|
0b01111000, // t
|
|
0b01100010, // u (appears as superscript to work in more positions)
|
|
0b01100010, // v (appears as superscript to work in more positions)
|
|
0b10111110, // w (only works in position 0)
|
|
0b01111110, // x
|
|
0b01101110, // y
|
|
0b00011011, // z
|
|
0b00111001, // {
|
|
0b00110000, // |
|
|
0b00001111, // }
|
|
0b00000001, // ~
|
|
};
|
|
|
|
static const uint64_t Segment_Map[] = {
|
|
0x4e4f0e8e8f8d4d0d, // Position 0, mode
|
|
0xc8c4c4c8b4b4b0b, // Position 1, mode (Segments B and C shared, as are segments E and F)
|
|
0xc049c00a49890949, // Position 2, day of month (Segments A, D, G shared; missing segment F)
|
|
0xc048088886874707, // Position 3, day of month
|
|
0xc053921252139352, // Position 4, clock hours (Segments A and D shared)
|
|
0xc054511415559594, // Position 5, clock hours
|
|
0xc057965616179716, // Position 6, clock minutes (Segments A and D shared)
|
|
0xc041804000018a81, // Position 7, clock minutes
|
|
0xc043420203048382, // Position 8, clock seconds
|
|
0xc045440506468584, // Position 9, clock seconds
|
|
};
|
|
|
|
static const uint8_t Num_Chars = 10;
|
|
|
|
static const uint32_t IndicatorSegments[6] = {
|
|
SLCD_SEGID(0, 17), // WATCH_INDICATOR_SIGNAL
|
|
SLCD_SEGID(0, 16), // WATCH_INDICATOR_BELL
|
|
SLCD_SEGID(2, 17), // WATCH_INDICATOR_PM
|
|
SLCD_SEGID(2, 16), // WATCH_INDICATOR_24H
|
|
SLCD_SEGID(1, 10), // WATCH_INDICATOR_LAP
|
|
};
|
|
|
|
void watch_enable_display() {
|
|
SEGMENT_LCD_0_init();
|
|
slcd_sync_enable(&SEGMENT_LCD_0);
|
|
}
|
|
|
|
inline void watch_set_pixel(uint8_t com, uint8_t seg) {
|
|
slcd_sync_seg_on(&SEGMENT_LCD_0, SLCD_SEGID(com, seg));
|
|
}
|
|
|
|
inline void watch_clear_pixel(uint8_t com, uint8_t seg) {
|
|
slcd_sync_seg_off(&SEGMENT_LCD_0, SLCD_SEGID(com, seg));
|
|
}
|
|
|
|
void watch_display_character(uint8_t character, uint8_t position) {
|
|
// handle lowercase 7 if needed
|
|
if (character == '7' && (position == 4 || position == 6)) character = '&';
|
|
|
|
uint64_t segmap = Segment_Map[position];
|
|
uint64_t segdata = Character_Set[character - 0x20];
|
|
|
|
for (int i = 0; i < 8; i++) {
|
|
uint8_t com = (segmap & 0xFF) >> 6;
|
|
if (com > 2) {
|
|
// COM3 means no segment exists; skip it.
|
|
segmap = segmap >> 8;
|
|
segdata = segdata >> 1;
|
|
continue;
|
|
}
|
|
uint8_t seg = segmap & 0x3F;
|
|
slcd_sync_seg_off(&SEGMENT_LCD_0, SLCD_SEGID(com, seg));
|
|
if (segdata & 1) slcd_sync_seg_on(&SEGMENT_LCD_0, SLCD_SEGID(com, seg));
|
|
segmap = segmap >> 8;
|
|
segdata = segdata >> 1;
|
|
}
|
|
}
|
|
|
|
void watch_display_string(char *string, uint8_t position) {
|
|
size_t i = 0;
|
|
while(string[i] != 0) {
|
|
watch_display_character(string[i], position + i);
|
|
i++;
|
|
if (i >= Num_Chars) break;
|
|
}
|
|
}
|
|
|
|
inline void watch_set_colon() {
|
|
slcd_sync_seg_on(&SEGMENT_LCD_0, SLCD_SEGID(1, 16));
|
|
}
|
|
|
|
inline void watch_clear_colon() {
|
|
slcd_sync_seg_off(&SEGMENT_LCD_0, SLCD_SEGID(1, 16));
|
|
}
|
|
|
|
inline void watch_set_indicator(WatchIndicatorSegment indicator) {
|
|
slcd_sync_seg_on(&SEGMENT_LCD_0, IndicatorSegments[indicator]);
|
|
}
|
|
|
|
inline void watch_clear_indicator(WatchIndicatorSegment indicator) {
|
|
slcd_sync_seg_off(&SEGMENT_LCD_0, IndicatorSegments[indicator]);
|
|
}
|
|
|
|
void watch_clear_all_indicators() {
|
|
slcd_sync_seg_off(&SEGMENT_LCD_0, SLCD_SEGID(2, 17));
|
|
slcd_sync_seg_off(&SEGMENT_LCD_0, SLCD_SEGID(2, 16));
|
|
slcd_sync_seg_off(&SEGMENT_LCD_0, SLCD_SEGID(0, 17));
|
|
slcd_sync_seg_off(&SEGMENT_LCD_0, SLCD_SEGID(0, 16));
|
|
slcd_sync_seg_off(&SEGMENT_LCD_0, SLCD_SEGID(1, 10));
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
// Buttons
|
|
|
|
void watch_enable_buttons() {
|
|
EXTERNAL_IRQ_0_init();
|
|
}
|
|
|
|
void watch_register_button_callback(const uint8_t pin, ext_irq_cb_t callback) {
|
|
if (pin == BTN_ALARM) {
|
|
gpio_set_pin_direction(BTN_ALARM, GPIO_DIRECTION_IN);
|
|
gpio_set_pin_pull_mode(BTN_ALARM, GPIO_PULL_DOWN);
|
|
gpio_set_pin_function(BTN_ALARM, PINMUX_PA02G_RTC_IN2);
|
|
btn_alarm_callback = callback;
|
|
_extwake_register_callback(&CALENDAR_0.device, extwake_callback);
|
|
} else {
|
|
ext_irq_register(pin, callback);
|
|
}
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
// LED
|
|
|
|
bool PWM_0_enabled = false;
|
|
|
|
void watch_enable_led(bool pwm) {
|
|
if (pwm) {
|
|
if (PWM_0_enabled) return;
|
|
|
|
PWM_0_init();
|
|
pwm_set_parameters(&PWM_0, 10000, 0);
|
|
pwm_enable(&PWM_0);
|
|
|
|
PWM_0_enabled = true;
|
|
} else {
|
|
watch_enable_digital_output(RED);
|
|
watch_enable_digital_output(GREEN);
|
|
}
|
|
watch_set_led_off();
|
|
}
|
|
|
|
void watch_disable_led(bool pwm) {
|
|
if (pwm) {
|
|
if (!PWM_0_enabled) return;
|
|
pwm_disable(&PWM_0);
|
|
PWM_0_enabled = false;
|
|
}
|
|
|
|
watch_disable_digital_output(RED);
|
|
watch_disable_digital_output(GREEN);
|
|
}
|
|
|
|
void watch_set_led_color(uint16_t red, uint16_t green) {
|
|
if (PWM_0_enabled) {
|
|
TC3->COUNT16.CC[0].reg = red;
|
|
TC3->COUNT16.CC[1].reg = green;
|
|
}
|
|
}
|
|
|
|
void watch_set_led_red() {
|
|
if (PWM_0_enabled) {
|
|
watch_set_led_color(65535, 0);
|
|
} else {
|
|
watch_set_pin_level(RED, true);
|
|
watch_set_pin_level(GREEN, false);
|
|
}
|
|
}
|
|
|
|
void watch_set_led_green() {
|
|
if (PWM_0_enabled) {
|
|
watch_set_led_color(65535, 0);
|
|
} else {
|
|
watch_set_pin_level(RED, false);
|
|
watch_set_pin_level(GREEN, true);
|
|
}
|
|
}
|
|
|
|
void watch_set_led_yellow() {
|
|
if (PWM_0_enabled) {
|
|
watch_set_led_color(65535, 65535);
|
|
} else {
|
|
watch_set_pin_level(RED, true);
|
|
watch_set_pin_level(GREEN, true);
|
|
}
|
|
}
|
|
|
|
void watch_set_led_off() {
|
|
if (PWM_0_enabled) {
|
|
watch_set_led_color(0, 0);
|
|
} else {
|
|
watch_set_pin_level(RED, false);
|
|
watch_set_pin_level(GREEN, false);
|
|
}
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
// Buzzer
|
|
|
|
inline void watch_enable_buzzer() {
|
|
PWM_1_init();
|
|
}
|
|
|
|
inline void watch_set_buzzer_period(uint32_t period) {
|
|
pwm_set_parameters(&PWM_1, period, period / 2);
|
|
}
|
|
|
|
inline void watch_set_buzzer_on() {
|
|
pwm_enable(&PWM_1);
|
|
}
|
|
|
|
inline void watch_set_buzzer_off() {
|
|
pwm_disable(&PWM_1);
|
|
}
|
|
|
|
const uint16_t NotePeriods[108] = {31047, 29301, 27649, 26079, 24617, 23224, 21923, 20683, 19515, 18418, 17377, 16399, 15477, 14603, 13780, 13004, 12272, 11580, 10926, 10311, 9730, 9181, 8664, 8175, 7714, 7280, 6869, 6483, 6117, 5772, 5447, 5140, 4850, 4577, 4319, 4076, 3846, 3629, 3425, 3232, 3050, 2878, 2715, 2562, 2418, 2282, 2153, 2032, 1917, 1809, 1707, 1611, 1520, 1435, 1354, 1277, 1205, 1137, 1073, 1013, 956, 902, 851, 803, 758, 715, 675, 637, 601, 567, 535, 505, 476, 450, 424, 400, 378, 357, 336, 317, 300, 283, 267, 252, 238, 224, 212, 200, 188, 178, 168, 158, 149, 141, 133, 125, 118, 112, 105, 99, 94, 89, 84, 79, 74, 70, 66, 63};
|
|
|
|
void watch_buzzer_play_note(BuzzerNote note, uint16_t duration_ms) {
|
|
if (note == BUZZER_NOTE_REST) {
|
|
watch_set_buzzer_off();
|
|
} else {
|
|
pwm_set_parameters(&PWM_1, NotePeriods[note], NotePeriods[note] / 2);
|
|
watch_set_buzzer_on();
|
|
}
|
|
delay_ms(duration_ms);
|
|
watch_set_buzzer_off();
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
// Real-time Clock
|
|
|
|
bool _watch_rtc_is_enabled() {
|
|
return RTC->MODE0.CTRLA.bit.ENABLE;
|
|
}
|
|
|
|
void watch_set_date_time(struct calendar_date_time date_time) {
|
|
calendar_set_date(&CALENDAR_0, &date_time.date);
|
|
calendar_set_time(&CALENDAR_0, &date_time.time);
|
|
}
|
|
|
|
void watch_get_date_time(struct calendar_date_time *date_time) {
|
|
calendar_get_date_time(&CALENDAR_0, date_time);
|
|
}
|
|
|
|
void watch_register_tick_callback(ext_irq_cb_t callback) {
|
|
_prescaler_register_callback(&CALENDAR_0.device, callback);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
// Analog Input
|
|
|
|
static bool ADC_0_ENABLED = false;
|
|
|
|
void watch_enable_analog(const uint8_t pin) {
|
|
if (!ADC_0_ENABLED) ADC_0_init();
|
|
ADC_0_ENABLED = true;
|
|
|
|
gpio_set_pin_direction(pin, GPIO_DIRECTION_OFF);
|
|
switch (pin) {
|
|
case A0:
|
|
gpio_set_pin_function(A0, PINMUX_PB04B_ADC_AIN12);
|
|
break;
|
|
case A1:
|
|
gpio_set_pin_function(A1, PINMUX_PB01B_ADC_AIN9);
|
|
break;
|
|
case A2:
|
|
gpio_set_pin_function(A2, PINMUX_PB02B_ADC_AIN10);
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
// Digital IO
|
|
|
|
void watch_enable_digital_input(const uint8_t pin) {
|
|
gpio_set_pin_direction(pin, GPIO_DIRECTION_IN);
|
|
gpio_set_pin_function(pin, GPIO_PIN_FUNCTION_OFF);
|
|
}
|
|
|
|
void watch_enable_pull_up(const uint8_t pin) {
|
|
gpio_set_pin_pull_mode(pin, GPIO_PULL_UP);
|
|
}
|
|
|
|
void watch_enable_pull_down(const uint8_t pin) {
|
|
gpio_set_pin_pull_mode(pin, GPIO_PULL_DOWN);
|
|
}
|
|
|
|
bool watch_get_pin_level(const uint8_t pin) {
|
|
return gpio_get_pin_level(pin);
|
|
}
|
|
|
|
void watch_enable_digital_output(const uint8_t pin) {
|
|
gpio_set_pin_direction(pin, GPIO_DIRECTION_OUT);
|
|
gpio_set_pin_function(pin, GPIO_PIN_FUNCTION_OFF);
|
|
}
|
|
|
|
void watch_disable_digital_output(const uint8_t pin) {
|
|
gpio_set_pin_direction(pin, GPIO_DIRECTION_OFF);
|
|
}
|
|
|
|
void watch_set_pin_level(const uint8_t pin, const bool level) {
|
|
gpio_set_pin_level(pin, level);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
// I2C
|
|
|
|
struct io_descriptor *I2C_0_io;
|
|
|
|
void watch_enable_i2c() {
|
|
I2C_0_init();
|
|
i2c_m_sync_get_io_descriptor(&I2C_0, &I2C_0_io);
|
|
i2c_m_sync_enable(&I2C_0);
|
|
}
|
|
|
|
void watch_i2c_send(int16_t addr, uint8_t *buf, uint16_t length) {
|
|
i2c_m_sync_set_periphaddr(&I2C_0, addr, I2C_M_SEVEN);
|
|
io_write(I2C_0_io, buf, length);
|
|
}
|
|
|
|
void watch_i2c_receive(int16_t addr, uint8_t *buf, uint16_t length) {
|
|
i2c_m_sync_set_periphaddr(&I2C_0, addr, I2C_M_SEVEN);
|
|
io_read(I2C_0_io, buf, length);
|
|
}
|
|
|
|
void watch_i2c_write8(int16_t addr, uint8_t reg, uint8_t data) {
|
|
uint8_t buf[2];
|
|
buf[0] = reg;
|
|
buf[1] = data;
|
|
|
|
watch_i2c_send(addr, (uint8_t *)&buf, 2);
|
|
}
|
|
|
|
uint8_t watch_i2c_read8(int16_t addr, uint8_t reg) {
|
|
uint8_t data;
|
|
|
|
watch_i2c_send(addr, (uint8_t *)®, 1);
|
|
watch_i2c_receive(addr, (uint8_t *)&data, 1);
|
|
|
|
return data;
|
|
}
|
|
|
|
uint16_t watch_i2c_read16(int16_t addr, uint8_t reg) {
|
|
uint16_t data;
|
|
|
|
watch_i2c_send(addr, (uint8_t *)®, 1);
|
|
watch_i2c_receive(addr, (uint8_t *)&data, 2);
|
|
|
|
return data;
|
|
}
|
|
|
|
uint32_t watch_i2c_read24(int16_t addr, uint8_t reg) {
|
|
uint32_t data;
|
|
data = 0;
|
|
|
|
watch_i2c_send(addr, (uint8_t *)®, 1);
|
|
watch_i2c_receive(addr, (uint8_t *)&data, 3);
|
|
|
|
return data << 8;
|
|
}
|
|
|
|
uint32_t watch_i2c_read32(int16_t addr, uint8_t reg) {
|
|
uint32_t data;
|
|
|
|
watch_i2c_send(addr, (uint8_t *)®, 1);
|
|
watch_i2c_receive(addr, (uint8_t *)&data, 4);
|
|
|
|
return data;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////
|
|
// Deep Sleep
|
|
|
|
static void extwake_callback(uint8_t reason) {
|
|
if (reason & RTC_TAMPID_TAMPID2) {
|
|
if (btn_alarm_callback != NULL) btn_alarm_callback();
|
|
} else if (reason & RTC_TAMPID_TAMPID1) {
|
|
if (a2_callback != NULL) a2_callback();
|
|
} else if (reason & RTC_TAMPID_TAMPID0) {
|
|
if (d1_callback != NULL) d1_callback();
|
|
}
|
|
}
|
|
|
|
void watch_register_extwake_callback(uint8_t pin, ext_irq_cb_t callback) {
|
|
uint32_t pinmux;
|
|
if (pin == D1) {
|
|
d1_callback = callback;
|
|
pinmux = PINMUX_PB00G_RTC_IN0;
|
|
} else if (pin == A2) {
|
|
a2_callback = callback;
|
|
pinmux = PINMUX_PB02G_RTC_IN1;
|
|
} else {
|
|
return;
|
|
}
|
|
gpio_set_pin_direction(pin, GPIO_DIRECTION_IN);
|
|
gpio_set_pin_function(pin, pinmux);
|
|
_extwake_register_callback(&CALENDAR_0.device, extwake_callback);
|
|
}
|
|
|
|
void watch_store_backup_data(uint32_t data, uint8_t reg) {
|
|
if (reg < 8) {
|
|
RTC->MODE0.BKUP[reg].reg = data;
|
|
}
|
|
}
|
|
|
|
uint32_t watch_get_backup_data(uint8_t reg) {
|
|
if (reg < 8) {
|
|
return RTC->MODE0.BKUP[reg].reg;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void watch_enter_deep_sleep() {
|
|
// enable and configure the external wake interrupt, if not already set up.
|
|
if (btn_alarm_callback == NULL && a2_callback == NULL && d1_callback == NULL) {
|
|
gpio_set_pin_direction(BTN_ALARM, GPIO_DIRECTION_IN);
|
|
gpio_set_pin_pull_mode(BTN_ALARM, GPIO_PULL_DOWN);
|
|
gpio_set_pin_function(BTN_ALARM, PINMUX_PA02G_RTC_IN2);
|
|
_extwake_register_callback(&CALENDAR_0.device, extwake_callback);
|
|
}
|
|
|
|
// disable SLCD
|
|
slcd_sync_deinit(&SEGMENT_LCD_0);
|
|
hri_mclk_clear_APBCMASK_SLCD_bit(SLCD);
|
|
|
|
// TODO: disable other peripherals
|
|
|
|
// go into backup sleep mode
|
|
sleep(5);
|
|
}
|