qmk_firmware

QMK firmware for my keyboards (Corne, Sweep Ferris) and trackball (Ploopy Adept)
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indicator_leds.c (3483B)

      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 
     23 #define LED_T1H  900
     24 #define LED_T1L  600
     25 #define LED_T0H  400
     26 #define LED_T0L  900
     27 
     28 void send_bit_d4(bool bitVal) {
     29   if(bitVal) {
     30     asm volatile (
     31         "sbi %[port], %[bit] \n\t"
     32         ".rept %[onCycles] \n\t"
     33         "nop \n\t"
     34         ".endr \n\t"
     35         "cbi %[port], %[bit] \n\t"
     36         ".rept %[offCycles] \n\t"
     37         "nop \n\t"
     38         ".endr \n\t"
     39         ::
     40         [port]      "I" (_SFR_IO_ADDR(PORTD)),
     41         [bit]       "I" (4),
     42         [onCycles]  "I" (NS_TO_CYCLES(LED_T1H) - 2),
     43         [offCycles] "I" (NS_TO_CYCLES(LED_T1L) - 2));
     44   } else {
     45     asm volatile (
     46         "sbi %[port], %[bit] \n\t"
     47         ".rept %[onCycles] \n\t"
     48         "nop \n\t"
     49         ".endr \n\t"
     50         "cbi %[port], %[bit] \n\t"
     51         ".rept %[offCycles] \n\t"
     52         "nop \n\t"
     53         ".endr \n\t"
     54         ::
     55         [port]      "I" (_SFR_IO_ADDR(PORTD)),
     56         [bit]       "I" (4),
     57         [onCycles]  "I" (NS_TO_CYCLES(LED_T0H) - 2),
     58         [offCycles] "I" (NS_TO_CYCLES(LED_T0L) - 2));
     59   }
     60 }
     61 
     62 void send_bit_d6(bool bitVal)
     63 {
     64   if(bitVal) {
     65     asm volatile (
     66         "sbi %[port], %[bit] \n\t"
     67         ".rept %[onCycles] \n\t"
     68         "nop \n\t"
     69         ".endr \n\t"
     70         "cbi %[port], %[bit] \n\t"
     71         ".rept %[offCycles] \n\t"
     72         "nop \n\t"
     73         ".endr \n\t"
     74         ::
     75         [port]      "I" (_SFR_IO_ADDR(PORTD)),
     76         [bit]       "I" (6),
     77         [onCycles]  "I" (NS_TO_CYCLES(LED_T1H) - 2),
     78         [offCycles] "I" (NS_TO_CYCLES(LED_T1L) - 2));
     79   } else {
     80     asm volatile (
     81         "sbi %[port], %[bit] \n\t"
     82         ".rept %[onCycles] \n\t"
     83         "nop \n\t"
     84         ".endr \n\t"
     85         "cbi %[port], %[bit] \n\t"
     86         ".rept %[offCycles] \n\t"
     87         "nop \n\t"
     88         ".endr \n\t"
     89         ::
     90         [port]      "I" (_SFR_IO_ADDR(PORTD)),
     91         [bit]       "I" (6),
     92         [onCycles]  "I" (NS_TO_CYCLES(LED_T0H) - 2),
     93         [offCycles] "I" (NS_TO_CYCLES(LED_T0L) - 2));
     94   }
     95 }
     96 
     97 void send_value(uint8_t byte, enum Device device) {
     98   for(uint8_t b = 0; b < 8; b++) {
     99     if(device == Device_STATUSLED) {
    100       send_bit_d4(byte & 0b10000000);
    101     }
    102     if(device == Device_PCBRGB) {
    103       send_bit_d6(byte & 0b10000000);
    104     }
    105     byte <<= 1;
    106   }
    107 }
    108 
    109 void send_color(uint8_t r, uint8_t g, uint8_t b, enum Device device) {
    110   send_value(r, device);
    111   send_value(g, device);
    112   send_value(b, device);
    113 }
    114 
    115 // Port from backlight_set_state
    116 void indicator_leds_set(bool leds[8]) {
    117   cli();
    118   send_color(leds[1] ? 255 : 0, leds[2] ? 255 : 0, leds[0] ? 255 : 0, Device_STATUSLED);
    119   send_color(leds[4] ? 255 : 0, leds[3] ? 255 : 0, leds[5] ? 255 : 0, Device_STATUSLED);
    120   leds[6] ? (PORTD &= ~0b10000000) : (PORTD |= 0b10000000);
    121   sei();
    122   show();
    123 }