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Diffstat (limited to 'keyboards/ymdk_np21/backlight.c')
| -rw-r--r-- | keyboards/ymdk_np21/backlight.c | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/keyboards/ymdk_np21/backlight.c b/keyboards/ymdk_np21/backlight.c deleted file mode 100644 index fbd241fa9..000000000 --- a/keyboards/ymdk_np21/backlight.c +++ /dev/null | |||
| @@ -1,213 +0,0 @@ | |||
| 1 | /** | ||
| 2 | * Backlighting code for PS2AVRGB boards (ATMEGA32A) | ||
| 3 | * Kenneth A. (github.com/krusli | krusli.me) | ||
| 4 | */ | ||
| 5 | |||
| 6 | #include "backlight.h" | ||
| 7 | #include "quantum.h" | ||
| 8 | |||
| 9 | #include <avr/pgmspace.h> | ||
| 10 | #include <avr/interrupt.h> | ||
| 11 | |||
| 12 | #include "backlight_custom.h" | ||
| 13 | #include "breathing_custom.h" | ||
| 14 | |||
| 15 | // DEBUG | ||
| 16 | #include <stdlib.h> | ||
| 17 | #include <stdio.h> | ||
| 18 | |||
| 19 | // Port D: digital pins of the AVR chipset | ||
| 20 | #define NUMLOCK_PORT (1 << 0) // D0 | ||
| 21 | #define CAPSLOCK_PORT (1 << 1) // D1 | ||
| 22 | #define BACKLIGHT_PORT (1 << 4) // D4 | ||
| 23 | #define SCROLLLOCK_PORT (1 << 6) // D6 | ||
| 24 | |||
| 25 | #define TIMER_CLK_DIV64 0x03 ///< Timer clocked at F_CPU/64 | ||
| 26 | #define TIMER1PRESCALE TIMER_CLK_DIV64 ///< timer 1 prescaler default | ||
| 27 | |||
| 28 | #define TIMER_PRESCALE_MASK 0x07 ///< Timer Prescaler Bit-Mask | ||
| 29 | |||
| 30 | #define PWM_MAX 0xFF | ||
| 31 | #define TIMER_TOP 255 // 8 bit PWM | ||
| 32 | |||
| 33 | extern backlight_config_t backlight_config; | ||
| 34 | |||
| 35 | /** | ||
| 36 | * References | ||
| 37 | * Port Registers: https://www.arduino.cc/en/Reference/PortManipulation | ||
| 38 | * TCCR1A: https://electronics.stackexchange.com/questions/92350/what-is-the-difference-between-tccr1a-and-tccr1b | ||
| 39 | * Timers: http://www.avrbeginners.net/architecture/timers/timers.html | ||
| 40 | * 16-bit timer setup: http://sculland.com/ATmega168/Interrupts-And-Timers/16-Bit-Timer-Setup/ | ||
| 41 | * PS2AVRGB firmware: https://github.com/showjean/ps2avrU/tree/master/firmware | ||
| 42 | */ | ||
| 43 | |||
| 44 | // @Override | ||
| 45 | // turn LEDs on and off depending on USB caps/num/scroll lock states. | ||
| 46 | __attribute__ ((weak)) | ||
| 47 | void led_set_user(uint8_t usb_led) { | ||
| 48 | if (usb_led & (1 << USB_LED_NUM_LOCK)) { | ||
| 49 | // turn on | ||
| 50 | DDRD |= NUMLOCK_PORT; | ||
| 51 | PORTD |= NUMLOCK_PORT; | ||
| 52 | } else { | ||
| 53 | // turn off | ||
| 54 | DDRD &= ~NUMLOCK_PORT; | ||
| 55 | PORTD &= ~NUMLOCK_PORT; | ||
| 56 | } | ||
| 57 | |||
| 58 | if (usb_led & (1 << USB_LED_CAPS_LOCK)) { | ||
| 59 | DDRD |= CAPSLOCK_PORT; | ||
| 60 | PORTD |= CAPSLOCK_PORT; | ||
| 61 | } else { | ||
| 62 | DDRD &= ~CAPSLOCK_PORT; | ||
| 63 | PORTD &= ~CAPSLOCK_PORT; | ||
| 64 | } | ||
| 65 | |||
| 66 | if (usb_led & (1 << USB_LED_SCROLL_LOCK)) { | ||
| 67 | DDRD |= SCROLLLOCK_PORT; | ||
| 68 | PORTD |= SCROLLLOCK_PORT; | ||
| 69 | } else { | ||
| 70 | DDRD &= ~SCROLLLOCK_PORT; | ||
| 71 | PORTD &= ~SCROLLLOCK_PORT; | ||
| 72 | } | ||
| 73 | } | ||
| 74 | |||
| 75 | #ifdef BACKLIGHT_ENABLE | ||
| 76 | |||
| 77 | // sets up Timer 1 for 8-bit PWM | ||
| 78 | void timer1PWMSetup(void) { // NOTE ONLY CALL THIS ONCE | ||
| 79 | // default 8 bit mode | ||
| 80 | TCCR1A &= ~(1 << 1); // cbi(TCCR1A,PWM11); <- set PWM11 bit to HIGH | ||
| 81 | TCCR1A |= (1 << 0); // sbi(TCCR1A,PWM10); <- set PWM10 bit to LOW | ||
| 82 | |||
| 83 | // clear output compare value A | ||
| 84 | // outb(OCR1AH, 0); | ||
| 85 | // outb(OCR1AL, 0); | ||
| 86 | |||
| 87 | // clear output comparator registers for B | ||
| 88 | OCR1BH = 0; // outb(OCR1BH, 0); | ||
| 89 | OCR1BL = 0; // outb(OCR1BL, 0); | ||
| 90 | } | ||
| 91 | |||
| 92 | bool is_init = false; | ||
| 93 | void timer1Init(void) { | ||
| 94 | // timer1SetPrescaler(TIMER1PRESCALE) | ||
| 95 | // set to DIV/64 | ||
| 96 | (TCCR1B) = ((TCCR1B) & ~TIMER_PRESCALE_MASK) | TIMER1PRESCALE; | ||
| 97 | |||
| 98 | // reset TCNT1 | ||
| 99 | TCNT1H = 0; // outb(TCNT1H, 0); | ||
| 100 | TCNT1L = 0; // outb(TCNT1L, 0); | ||
| 101 | |||
| 102 | // TOIE1: Timer Overflow Interrupt Enable (Timer 1); | ||
| 103 | TIMSK |= _BV(TOIE1); // sbi(TIMSK, TOIE1); | ||
| 104 | |||
| 105 | is_init = true; | ||
| 106 | } | ||
| 107 | |||
| 108 | void timer1UnInit(void) { | ||
| 109 | // set prescaler back to NONE | ||
| 110 | (TCCR1B) = ((TCCR1B) & ~TIMER_PRESCALE_MASK) | 0x00; // TIMERRTC_CLK_STOP | ||
| 111 | |||
| 112 | // disable timer overflow interrupt | ||
| 113 | TIMSK &= ~_BV(TOIE1); // overflow bit? | ||
| 114 | |||
| 115 | setPWM(0); | ||
| 116 | |||
| 117 | is_init = false; | ||
| 118 | } | ||
| 119 | |||
| 120 | |||
| 121 | // handle TCNT1 overflow | ||
| 122 | //! Interrupt handler for tcnt1 overflow interrupt | ||
| 123 | ISR(TIMER1_OVF_vect, ISR_NOBLOCK) | ||
| 124 | { | ||
| 125 | // sei(); | ||
| 126 | // handle breathing here | ||
| 127 | #ifdef BACKLIGHT_BREATHING | ||
| 128 | if (is_breathing()) { | ||
| 129 | custom_breathing_handler(); | ||
| 130 | } | ||
| 131 | #endif | ||
| 132 | |||
| 133 | // TODO call user defined function | ||
| 134 | } | ||
| 135 | |||
| 136 | // enable timer 1 PWM | ||
| 137 | // timer1PWMBOn() | ||
| 138 | void timer1PWMBEnable(void) { | ||
| 139 | // turn on channel B (OC1B) PWM output | ||
| 140 | // set OC1B as non-inverted PWM | ||
| 141 | TCCR1A |= _BV(COM1B1); | ||
| 142 | TCCR1A &= ~_BV(COM1B0); | ||
| 143 | } | ||
| 144 | |||
| 145 | // disable timer 1 PWM | ||
| 146 | // timer1PWMBOff() | ||
| 147 | void timer1PWMBDisable(void) { | ||
| 148 | TCCR1A &= ~_BV(COM1B1); | ||
| 149 | TCCR1A &= ~_BV(COM1B0); | ||
| 150 | } | ||
| 151 | |||
| 152 | void enableBacklight(void) { | ||
| 153 | DDRD |= BACKLIGHT_PORT; // set digital pin 4 as output | ||
| 154 | PORTD |= BACKLIGHT_PORT; // set digital pin 4 to high | ||
| 155 | } | ||
| 156 | |||
| 157 | void disableBacklight(void) { | ||
| 158 | // DDRD &= ~BACKLIGHT_PORT; // set digital pin 4 as input | ||
| 159 | PORTD &= ~BACKLIGHT_PORT; // set digital pin 4 to low | ||
| 160 | } | ||
| 161 | |||
| 162 | void startPWM(void) { | ||
| 163 | timer1Init(); | ||
| 164 | timer1PWMBEnable(); | ||
| 165 | enableBacklight(); | ||
| 166 | } | ||
| 167 | |||
| 168 | void stopPWM(void) { | ||
| 169 | timer1UnInit(); | ||
| 170 | disableBacklight(); | ||
| 171 | timer1PWMBDisable(); | ||
| 172 | } | ||
| 173 | |||
| 174 | void b_led_init_ports(void) { | ||
| 175 | /* turn backlight on/off depending on user preference */ | ||
| 176 | #if BACKLIGHT_ON_STATE == 0 | ||
| 177 | // DDRx register: sets the direction of Port D | ||
| 178 | // DDRD &= ~BACKLIGHT_PORT; // set digital pin 4 as input | ||
| 179 | PORTD &= ~BACKLIGHT_PORT; // set digital pin 4 to low | ||
| 180 | #else | ||
| 181 | DDRD |= BACKLIGHT_PORT; // set digital pin 4 as output | ||
| 182 | PORTD |= BACKLIGHT_PORT; // set digital pin 4 to high | ||
| 183 | #endif | ||
| 184 | |||
| 185 | timer1PWMSetup(); | ||
| 186 | startPWM(); | ||
| 187 | |||
| 188 | #ifdef BACKLIGHT_BREATHING | ||
| 189 | breathing_enable(); | ||
| 190 | #endif | ||
| 191 | } | ||
| 192 | |||
| 193 | void b_led_set(uint8_t level) { | ||
| 194 | if (level > BACKLIGHT_LEVELS) { | ||
| 195 | level = BACKLIGHT_LEVELS; | ||
| 196 | } | ||
| 197 | |||
| 198 | setPWM((int)(TIMER_TOP * (float) level / BACKLIGHT_LEVELS)); | ||
| 199 | } | ||
| 200 | |||
| 201 | // called every matrix scan | ||
| 202 | void b_led_task(void) { | ||
| 203 | // do nothing for now | ||
| 204 | } | ||
| 205 | |||
| 206 | void setPWM(uint16_t xValue) { | ||
| 207 | if (xValue > TIMER_TOP) { | ||
| 208 | xValue = TIMER_TOP; | ||
| 209 | } | ||
| 210 | OCR1B = xValue; // timer1PWMBSet(xValue); | ||
| 211 | } | ||
| 212 | |||
| 213 | #endif // BACKLIGHT_ENABLE | ||
