keyboard/ergodox/ergodox.h

   1 /*
   2 Copyright 2013 Oleg Kostyuk <cub.uanic@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
  18 Copyright (c) 2012, 2013 Ben Blazak <benblazak.dev@gmail.com>
  19 Released under The MIT License (see "doc/licenses/MIT.md")
  20 Project located at <https://github.com/benblazak/ergodox-firmware>
  21
  22 Most used files are located at
  23 <https://github.com/benblazak/ergodox-firmware/tree/partial-rewrite/firmware/keyboard/ergodox/controller>
  24
  25 */
  26
  27 #include <stdint.h>
  28 #include <stdbool.h>
  29 #include <avr/io.h>
  30 #include "i2cmaster.h"
  31
  32 #define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
  33 #define CPU_16MHz       0x00
  34
  35 // I2C aliases and register addresses (see "mcp23018.md")
  36 #define I2C_ADDR        0b0100000
  37 #define I2C_ADDR_WRITE  ( (I2C_ADDR<<1) | I2C_WRITE )
  38 #define I2C_ADDR_READ   ( (I2C_ADDR<<1) | I2C_READ  )
  39 #define IODIRA          0x00            // i/o direction register
  40 #define IODIRB          0x01
  41 #define GPPUA           0x0C            // GPIO pull-up resistor register
  42 #define GPPUB           0x0D
  43 #define GPIOA           0x12            // general purpose i/o port register (write modifies OLAT)
  44 #define GPIOB           0x13
  45 #define OLATA           0x14            // output latch register
  46 #define OLATB           0x15
  47
  48 extern uint8_t mcp23018_status;
  49
  50 void init_ergodox(void);
  51 void ergodox_blink_all_leds(void);
  52 uint8_t init_mcp23018(void);
  53 uint8_t ergodox_left_leds_update(void);
  54
  55 #define LED_BRIGHTNESS_LO       31
  56 #define LED_BRIGHTNESS_HI       255
  57
  58 #define LEFT_LED_1_SHIFT        7       // in MCP23018 port B
  59 #define LEFT_LED_2_SHIFT        6       // in MCP23018 port B
  60 #define LEFT_LED_3_SHIFT        7       // in MCP23018 port A
  61
  62 extern bool ergodox_left_led_1;         // left top
  63 extern bool ergodox_left_led_2;         // left middle
  64 extern bool ergodox_left_led_3;         // left bottom
  65
  66 inline void ergodox_board_led_on(void)      { DDRD |=  (1<<6); PORTD |=  (1<<6); }
  67 inline void ergodox_right_led_1_on(void)    { DDRB |=  (1<<5); PORTB |=  (1<<5); }
  68 inline void ergodox_right_led_2_on(void)    { DDRB |=  (1<<6); PORTB |=  (1<<6); }
  69 inline void ergodox_right_led_3_on(void)    { DDRB |=  (1<<7); PORTB |=  (1<<7); }
  70 inline void ergodox_left_led_1_on(void)     { ergodox_left_led_1 = 1; }
  71 inline void ergodox_left_led_2_on(void)     { ergodox_left_led_2 = 1; }
  72 inline void ergodox_left_led_3_on(void)     { ergodox_left_led_3 = 1; }
  73
  74 inline void ergodox_board_led_off(void)     { DDRD &= ~(1<<6); PORTD &= ~(1<<6); }
  75 inline void ergodox_right_led_1_off(void)   { DDRB &= ~(1<<5); PORTB &= ~(1<<5); }
  76 inline void ergodox_right_led_2_off(void)   { DDRB &= ~(1<<6); PORTB &= ~(1<<6); }
  77 inline void ergodox_right_led_3_off(void)   { DDRB &= ~(1<<7); PORTB &= ~(1<<7); }
  78 inline void ergodox_left_led_1_off(void)    { ergodox_left_led_1 = 0; }
  79 inline void ergodox_left_led_2_off(void)    { ergodox_left_led_2 = 0; }
  80 inline void ergodox_left_led_3_off(void)    { ergodox_left_led_3 = 0; }
  81
  82 inline void ergodox_led_all_on(void)
  83 {
  84     ergodox_board_led_on();
  85     ergodox_right_led_1_on();
  86     ergodox_right_led_2_on();
  87     ergodox_right_led_3_on();
  88     ergodox_left_led_1_on();
  89     ergodox_left_led_2_on();
  90     ergodox_left_led_3_on();
  91     ergodox_left_leds_update();
  92 }
  93
  94 inline void ergodox_led_all_off(void)
  95 {
  96     ergodox_board_led_off();
  97     ergodox_right_led_1_off();
  98     ergodox_right_led_2_off();
  99     ergodox_right_led_3_off();
 100     ergodox_left_led_1_off();
 101     ergodox_left_led_2_off();
 102     ergodox_left_led_3_off();
 103     ergodox_left_leds_update();
 104 }
 105
 106 inline void ergodox_right_led_1_set(uint8_t n)    { OCR1A = n; }
 107 inline void ergodox_right_led_2_set(uint8_t n)    { OCR1B = n; }
 108 inline void ergodox_right_led_3_set(uint8_t n)    { OCR1C = n; }
 109
 110 inline void ergodox_led_all_set(uint8_t n)
 111 {
 112     ergodox_right_led_1_set(n);
 113     ergodox_right_led_2_set(n);
 114     ergodox_right_led_3_set(n);
 115 }
 116