major project reorg, move library one level up

1 files changed, 350 insertions, 0 deletions

diff --git a/watch-library/watch/watch.c b/watch-library/watch/watch.c
new file mode 100644
index 00000000..6ab093bd
--- /dev/null
+++ b/watch-library/watch/watch.c
@@ -0,0 +1,350 @@
+/*
+ * watch.c
+ *
+ * Created: 4/25/2021 10:22:10 AM
+ *  Author: joeycastillo
+ */
+
+#include "watch.h"
+#include <stdlib.h>
+
+void watch_init() {
+    // use switching regulator
+    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);
+
+    // TODO: use performance level 0?
+//    _set_performance_level(0);
+//    hri_pm_write_PLCFG_PLDIS_bit(PM, true);
+}
+
+static const uint8_t Character_Set[] =
+{
+    0b00000000, //  
+    0b00000000, // !
+    0b00100010, // "
+    0b00000000, // #
+    0b00000000, // $
+    0b00000000, // %
+    0b01000100, // &
+    0b00100000, // '
+    0b00000000, // (
+    0b00000000, // )
+    0b00000000, // *
+    0b11000000, // +
+    0b00010000, // ,
+    0b01000000, // -
+    0b00000100, // .
+    0b00010010, // /
+    0b00111111, // 0
+    0b00000110, // 1
+    0b01011011, // 2
+    0b01001111, // 3
+    0b01100110, // 4
+    0b01101101, // 5
+    0b01111101, // 6
+    0b00000111, // 7
+    0b01111111, // 8
+    0b01101111, // 9
+    0b00000000, // :
+    0b00000000, // ;
+    0b01011000, // <
+    0b01001000, // =
+    0b01001100, // >
+    0b01010011, // ?
+    0b11111111, // @
+    0b01110111, // A
+    0b01111111, // B
+    0b00111001, // C
+    0b00111111, // D
+    0b01111001, // E
+    0b01110001, // F
+    0b00111101, // G
+    0b01110110, // H
+    0b10001001, // I
+    0b00001110, // J
+    0b11101010, // K
+    0b00111000, // L
+    0b10110111, // M
+    0b00110111, // N
+    0b00111111, // O
+    0b01110011, // P
+    0b01100111, // Q
+    0b11110111, // R
+    0b01101101, // S
+    0b10000001, // T
+    0b00111110, // U
+    0b00111110, // V
+    0b10111110, // W
+    0b01111110, // X
+    0b01101110, // Y
+    0b00011011, // Z
+    0b00111001, // [
+    0b00100100, // backslash
+    0b00001111, // ]
+    0b00100110, // ^
+    0b00001000, // _
+    0b00000010, // `
+    0b01011111, // a
+    0b01111100, // b
+    0b01011000, // c
+    0b01011110, // d
+    0b01111011, // e
+    0b01110001, // f
+    0b01101111, // g
+    0b01110100, // h
+    0b00010000, // i
+    0b01000010, // j
+    0b11101010, // k
+    0b00110000, // l
+    0b10110111, // m
+    0b01010100, // n
+    0b01011100, // o
+    0b01110011, // p
+    0b01100111, // q
+    0b01010000, // r
+    0b01101101, // s
+    0b01111000, // t
+    0b01100010, // u
+    0b01100010, // v
+    0b10111110, // w
+    0b01111110, // x
+    0b01101110, // y
+    0b00011011, // z
+    0b00111001, // {
+    0b00110000, // |
+    0b00001111, // }
+    0b00000001, // ~
+};
+
+static const uint64_t Segment_Map[] = {
+    0x4e4f0e8e8f8d4d0d, // Position 8
+    0xc8c4c4c8b4b4b0b,  // Position 9
+    0xc049c00a49890949, // Position 6
+    0xc048088886874707, // Position 7
+    0xc053921252139352, // Position 0
+    0xc054511415559594, // Position 1
+    0xc057965616179716, // Position 2
+    0xc041804000018a81, // Position 3
+    0xc043420203048382, // Position 4
+    0xc045440506468584, // Position 5
+};
+
+static const uint8_t Num_Chars = 10;
+
+void watch_enable_display() {
+    SEGMENT_LCD_0_init();
+    slcd_sync_enable(&SEGMENT_LCD_0);
+}
+
+void watch_display_pixel(uint8_t com, uint8_t seg) {
+    slcd_sync_seg_on(&SEGMENT_LCD_0, SLCD_SEGID(com, seg));
+}
+
+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) {
+    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;
+    }
+}
+
+void watch_enable_buttons() {
+    EXTERNAL_IRQ_0_init();
+}
+
+void watch_register_button_callback(const uint32_t pin, ext_irq_cb_t callback) {
+    ext_irq_register(pin, callback);
+}
+
+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);
+    }
+}
+
+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);
+}
+
+static ext_irq_cb_t tick_user_callback;
+
+static void tick_callback(struct calendar_dev *const dev) {
+    tick_user_callback();
+}
+
+void watch_enable_tick_callback(ext_irq_cb_t callback) {
+    tick_user_callback = callback;
+    // TODO: rename this method to reflect that it now sets the PER7 interrupt.
+    _tamper_register_callback(&CALENDAR_0.device, &tick_callback);
+}
+
+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;
+    }
+}
+
+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, const bool level) {
+    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);
+}
+
+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_slaveaddr(&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_slaveaddr(&I2C_0, addr, I2C_M_SEVEN);
+    io_read(I2C_0_io, buf, length);
+}