diff options
Diffstat (limited to 'quantum/quantum.c')
| -rw-r--r-- | quantum/quantum.c | 352 |
1 files changed, 346 insertions, 6 deletions
diff --git a/quantum/quantum.c b/quantum/quantum.c index 006464e5a8..9c0f9691ff 100644 --- a/quantum/quantum.c +++ b/quantum/quantum.c @@ -1,12 +1,6 @@ #include "quantum.h" __attribute__ ((weak)) -void matrix_init_kb(void) {} - -__attribute__ ((weak)) -void matrix_scan_kb(void) {} - -__attribute__ ((weak)) bool process_action_kb(keyrecord_t *record) { return true; } @@ -655,6 +649,9 @@ void update_tri_layer(uint8_t layer1, uint8_t layer2, uint8_t layer3) { } void matrix_init_quantum() { + #ifdef BACKLIGHT_ENABLE + backlight_init_ports(); + #endif matrix_init_kb(); } @@ -673,6 +670,7 @@ void matrix_scan_quantum() { matrix_scan_kb(); } + #ifdef AUDIO_ENABLE bool is_music_on(void) { return (music_activated != 0); @@ -698,6 +696,348 @@ void matrix_scan_quantum() { #endif + +#if defined(BACKLIGHT_ENABLE) && defined(BACKLIGHT_PIN) + +static const uint8_t backlight_pin = BACKLIGHT_PIN; + +#if BACKLIGHT_PIN == B7 +# define COM1x1 COM1C1 +# define OCR1x OCR1C +#elif BACKLIGHT_PIN == B6 +# define COM1x1 COM1B1 +# define OCR1x OCR1B +#elif BACKLIGHT_PIN == B5 +# define COM1x1 COM1A1 +# define OCR1x OCR1A +#else +# error "Backlight pin not supported - use B5, B6, or B7" +#endif + +__attribute__ ((weak)) +void backlight_init_ports(void) +{ + + // Setup backlight pin as output and output low. + // DDRx |= n + _SFR_IO8((backlight_pin >> 4) + 1) |= _BV(backlight_pin & 0xF); + // PORTx &= ~n + _SFR_IO8((backlight_pin >> 4) + 2) &= ~_BV(backlight_pin & 0xF); + + // Use full 16-bit resolution. + ICR1 = 0xFFFF; + + // I could write a wall of text here to explain... but TL;DW + // Go read the ATmega32u4 datasheet. + // And this: http://blog.saikoled.com/post/43165849837/secret-konami-cheat-code-to-high-resolution-pwm-on + + // Pin PB7 = OCR1C (Timer 1, Channel C) + // Compare Output Mode = Clear on compare match, Channel C = COM1C1=1 COM1C0=0 + // (i.e. start high, go low when counter matches.) + // WGM Mode 14 (Fast PWM) = WGM13=1 WGM12=1 WGM11=1 WGM10=0 + // Clock Select = clk/1 (no prescaling) = CS12=0 CS11=0 CS10=1 + + TCCR1A = _BV(COM1x1) | _BV(WGM11); // = 0b00001010; + TCCR1B = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001; + + backlight_init(); + #ifdef BACKLIGHT_BREATHING + breathing_defaults(); + #endif +} + +__attribute__ ((weak)) +void backlight_set(uint8_t level) +{ + // Prevent backlight blink on lowest level + // PORTx &= ~n + _SFR_IO8((backlight_pin >> 4) + 2) &= ~_BV(backlight_pin & 0xF); + + if ( level == 0 ) { + // Turn off PWM control on backlight pin, revert to output low. + TCCR1A &= ~(_BV(COM1x1)); + OCR1x = 0x0; + } else if ( level == BACKLIGHT_LEVELS ) { + // Turn on PWM control of backlight pin + TCCR1A |= _BV(COM1x1); + // Set the brightness + OCR1x = 0xFFFF; + } else { + // Turn on PWM control of backlight pin + TCCR1A |= _BV(COM1x1); + // Set the brightness + OCR1x = 0xFFFF >> ((BACKLIGHT_LEVELS - level) * ((BACKLIGHT_LEVELS + 1) / 2)); + } + + #ifdef BACKLIGHT_BREATHING + breathing_intensity_default(); + #endif +} + + +#ifdef BACKLIGHT_BREATHING + +#define BREATHING_NO_HALT 0 +#define BREATHING_HALT_OFF 1 +#define BREATHING_HALT_ON 2 + +static uint8_t breath_intensity; +static uint8_t breath_speed; +static uint16_t breathing_index; +static uint8_t breathing_halt; + +void breathing_enable(void) +{ + if (get_backlight_level() == 0) + { + breathing_index = 0; + } + else + { + // Set breathing_index to be at the midpoint (brightest point) + breathing_index = 0x20 << breath_speed; + } + + breathing_halt = BREATHING_NO_HALT; + + // Enable breathing interrupt + TIMSK1 |= _BV(OCIE1A); +} + +void breathing_pulse(void) +{ + if (get_backlight_level() == 0) + { + breathing_index = 0; + } + else + { + // Set breathing_index to be at the midpoint + 1 (brightest point) + breathing_index = 0x21 << breath_speed; + } + + breathing_halt = BREATHING_HALT_ON; + + // Enable breathing interrupt + TIMSK1 |= _BV(OCIE1A); +} + +void breathing_disable(void) +{ + // Disable breathing interrupt + TIMSK1 &= ~_BV(OCIE1A); + backlight_set(get_backlight_level()); +} + +void breathing_self_disable(void) +{ + if (get_backlight_level() == 0) + { + breathing_halt = BREATHING_HALT_OFF; + } + else + { + breathing_halt = BREATHING_HALT_ON; + } + + //backlight_set(get_backlight_level()); +} + +void breathing_toggle(void) +{ + if (!is_breathing()) + { + if (get_backlight_level() == 0) + { + breathing_index = 0; + } + else + { + // Set breathing_index to be at the midpoint + 1 (brightest point) + breathing_index = 0x21 << breath_speed; + } + + breathing_halt = BREATHING_NO_HALT; + } + + // Toggle breathing interrupt + TIMSK1 ^= _BV(OCIE1A); + + // Restore backlight level + if (!is_breathing()) + { + backlight_set(get_backlight_level()); + } +} + +bool is_breathing(void) +{ + return (TIMSK1 && _BV(OCIE1A)); +} + +void breathing_intensity_default(void) +{ + //breath_intensity = (uint8_t)((uint16_t)100 * (uint16_t)get_backlight_level() / (uint16_t)BACKLIGHT_LEVELS); + breath_intensity = ((BACKLIGHT_LEVELS - get_backlight_level()) * ((BACKLIGHT_LEVELS + 1) / 2)); +} + +void breathing_intensity_set(uint8_t value) +{ + breath_intensity = value; +} + +void breathing_speed_default(void) +{ + breath_speed = 4; +} + +void breathing_speed_set(uint8_t value) +{ + bool is_breathing_now = is_breathing(); + uint8_t old_breath_speed = breath_speed; + + if (is_breathing_now) + { + // Disable breathing interrupt + TIMSK1 &= ~_BV(OCIE1A); + } + + breath_speed = value; + + if (is_breathing_now) + { + // Adjust index to account for new speed + breathing_index = (( (uint8_t)( (breathing_index) >> old_breath_speed ) ) & 0x3F) << breath_speed; + + // Enable breathing interrupt + TIMSK1 |= _BV(OCIE1A); + } + +} + +void breathing_speed_inc(uint8_t value) +{ + if ((uint16_t)(breath_speed - value) > 10 ) + { + breathing_speed_set(0); + } + else + { + breathing_speed_set(breath_speed - value); + } +} + +void breathing_speed_dec(uint8_t value) +{ + if ((uint16_t)(breath_speed + value) > 10 ) + { + breathing_speed_set(10); + } + else + { + breathing_speed_set(breath_speed + value); + } +} + +void breathing_defaults(void) +{ + breathing_intensity_default(); + breathing_speed_default(); + breathing_halt = BREATHING_NO_HALT; +} + +/* Breathing Sleep LED brighness(PWM On period) table + * (64[steps] * 4[duration]) / 64[PWM periods/s] = 4 second breath cycle + * + * http://www.wolframalpha.com/input/?i=%28sin%28+x%2F64*pi%29**8+*+255%2C+x%3D0+to+63 + * (0..63).each {|x| p ((sin(x/64.0*PI)**8)*255).to_i } + */ +static const uint8_t breathing_table[64] PROGMEM = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 4, 6, 10, + 15, 23, 32, 44, 58, 74, 93, 113, 135, 157, 179, 199, 218, 233, 245, 252, +255, 252, 245, 233, 218, 199, 179, 157, 135, 113, 93, 74, 58, 44, 32, 23, + 15, 10, 6, 4, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; + +ISR(TIMER1_COMPA_vect) +{ + // OCR1x = (pgm_read_byte(&breathing_table[ ( (uint8_t)( (breathing_index++) >> breath_speed ) ) & 0x3F ] )) * breath_intensity; + + + uint8_t local_index = ( (uint8_t)( (breathing_index++) >> breath_speed ) ) & 0x3F; + + if (((breathing_halt == BREATHING_HALT_ON) && (local_index == 0x20)) || ((breathing_halt == BREATHING_HALT_OFF) && (local_index == 0x3F))) + { + // Disable breathing interrupt + TIMSK1 &= ~_BV(OCIE1A); + } + + OCR1x = (uint16_t)(((uint16_t)pgm_read_byte(&breathing_table[local_index]) * 257)) >> breath_intensity; + +} + + + +#endif // breathing + +#else // backlight + +__attribute__ ((weak)) +void backlight_init_ports(void) +{ + +} + +__attribute__ ((weak)) +void backlight_set(uint8_t level) +{ + +} + +#endif // backlight + + + +__attribute__ ((weak)) +void led_set_user(uint8_t usb_led) { + +} + +__attribute__ ((weak)) +void led_set_kb(uint8_t usb_led) { + led_set_user(usb_led); +} + +__attribute__ ((weak)) +void led_init_ports(void) +{ + +} + +__attribute__ ((weak)) +void led_set(uint8_t usb_led) +{ + + // Example LED Code + // + // // Using PE6 Caps Lock LED + // if (usb_led & (1<<USB_LED_CAPS_LOCK)) + // { + // // Output high. + // DDRE |= (1<<6); + // PORTE |= (1<<6); + // } + // else + // { + // // Output low. + // DDRE &= ~(1<<6); + // PORTE &= ~(1<<6); + // } + + led_set_kb(usb_led); +} + + //------------------------------------------------------------------------------ // Override these functions in your keymap file to play different tunes on // different events such as startup and bootloader jump |