qmk_firmware

QMK firmware for my keyboards (Corne, Sweep Ferris) and trackball (Ploopy Adept)
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indicator_leds.c (2261B)

      1 /*
      2 Copyright 2019 MechMerlin <mechmerlin@gmail.com>
      3 
      4 This program is free software: you can redistribute it and/or modify
      5 it under the terms of the GNU General Public License as published by
      6 the Free Software Foundation, either version 2 of the License, or
      7 (at your option) any later version.
      8 
      9 This program is distributed in the hope that it will be useful,
     10 but WITHOUT ANY WARRANTY; without even the implied warranty of
     11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     12 GNU General Public License for more details.
     13 
     14 You should have received a copy of the GNU General Public License
     15 along with this program.  If not, see <http://www.gnu.org/licenses/>.
     16 */
     17 #include <avr/interrupt.h>
     18 #include <avr/io.h>
     19 #include <stdbool.h>
     20 #include <util/delay.h>
     21 #include "indicator_leds.h"
     22 #include "duck_led/duck_led.h"
     23 
     24 #define LED_T1H	600
     25 #define LED_T1L 650
     26 #define LED_T0H 250
     27 #define LED_T0L 1000
     28 
     29 void send_bit_d4(bool bitVal) {
     30   if(bitVal) {
     31     asm volatile (
     32         "sbi %[port], %[bit] \n\t"
     33         ".rept %[onCycles] \n\t"
     34         "nop \n\t"
     35         ".endr \n\t"
     36         "cbi %[port], %[bit] \n\t"
     37         ".rept %[offCycles] \n\t"
     38         "nop \n\t"
     39         ".endr \n\t"
     40         ::
     41         [port]      "I" (_SFR_IO_ADDR(PORTD)),
     42         [bit]       "I" (4),
     43         [onCycles]  "I" (NS_TO_CYCLES(LED_T1H) - 2),
     44         [offCycles] "I" (NS_TO_CYCLES(LED_T1L) - 2));
     45   } else {
     46     asm volatile (
     47         "sbi %[port], %[bit] \n\t"
     48         ".rept %[onCycles] \n\t"
     49         "nop \n\t"
     50         ".endr \n\t"
     51         "cbi %[port], %[bit] \n\t"
     52         ".rept %[offCycles] \n\t"
     53         "nop \n\t"
     54         ".endr \n\t"
     55         ::
     56         [port]      "I" (_SFR_IO_ADDR(PORTD)),
     57         [bit]       "I" (4),
     58         [onCycles]  "I" (NS_TO_CYCLES(LED_T0H) - 2),
     59         [offCycles] "I" (NS_TO_CYCLES(LED_T0L) - 2));
     60   }
     61 }
     62 
     63 void send_value(uint8_t byte, enum Device device) {
     64   for(uint8_t b = 0; b < 8; b++) {
     65     if(device == Device_STATUSLED) {
     66       send_bit_d4(byte & 0b10000000);
     67       byte <<= 1;
     68     }
     69   }
     70 }
     71 
     72 // Send the LED indicators to the WS2811S chips
     73 void indicator_leds_set(bool leds[8]) {
     74   uint8_t led_cnt;
     75 
     76   cli();
     77   for(led_cnt = 0; led_cnt < 8; led_cnt++)
     78     send_value(leds[led_cnt] ? 255 : 0, Device_STATUSLED);
     79   sei();
     80   show();
     81 }
     82