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qmk_firmware

custom branch of QMK firmware git clone https://anongit.hacktivis.me/git/qmk_firmware.git

leds.c (3423B)

    

  1. /* Copyright 2018-2021 James Laird-Wah, Islam Sharabash
  2.  *
  3.  * This program is free software: you can redistribute it and/or modify
  4.  * it under the terms of the GNU General Public License as published by
  5.  * the Free Software Foundation, either version 2 of the License, or
  6.  * (at your option) any later version.
  7.  *
  8.  * This program is distributed in the hope that it will be useful,
  9.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11.  * GNU General Public License for more details.
  12.  *
  13.  * You should have received a copy of the GNU General Public License
  14.  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15.  */
  17. #include "leds.h"
  18. #include <string.h>
  19. #include "i2c_master.h"
  20. #include "led_tables.h"
  21. #include "rgb_matrix.h"
  22. #include "wait.h"
  23. #include "raise.h"
  24. #include "wire-protocol-constants.h"
  25. #include "print.h"
  27. // Color order of LEDs is Green, Red, Blue.
  28. typedef struct PACKED {
  29.     uint8_t r;
  30.     uint8_t g;
  31.     uint8_t b;
  32. } raiseRGB;
  34. #define LEDS_PER_HAND 72
  35. #define LED_BANKS 9
  36. #define LEDS_PER_BANK 8
  37. #define LED_BYTES_PER_BANK (sizeof(raiseRGB) * LEDS_PER_BANK)
  39. // shifting << 1 is because drivers/chibios/i2c_master.h expects the address
  40. // shifted.
  41. // 0x58 and 0x59 are the addresses defined in dygma/raise/Hand.h
  42. #define I2C_ADDR_LEFT (0x58 << 1)
  43. #define I2C_ADDR_RIGHT (0x59 << 1)
  44. #define I2C_ADDR(hand) ((hand) ? I2C_ADDR_RIGHT : I2C_ADDR_LEFT)
  45. #define LEFT 0
  46. #define RIGHT 1
  48. static raiseRGB led_pending[2 * LEDS_PER_HAND];
  49. static raiseRGB led_state[2 * LEDS_PER_HAND];
  51. static void set_color(int index, uint8_t r, uint8_t g, uint8_t b) {
  52.     int sled = led_map[index];
  53.     // The red component of the LED is apparently stronger than the others.
  54.     // From: https://github.com/keyboardio/Kaleidoscope/blob/aba8c9ee66bbb5ded15135618d2b2964ee82b2cc/plugins/Kaleidoscope-Hardware-Dygma-Raise/src/kaleidoscope/device/dygma/raise/RaiseSide.cpp#L235-L242
  55.     if (r >= 26) {
  56.         r -= 26;
  57.     }
  58.     led_pending[sled].r = r;
  59.     led_pending[sled].g = g;
  60.     led_pending[sled].b = b;
  61. }
  63. static void set_color_all(uint8_t r, uint8_t g, uint8_t b) {
  64.     for (int i = 0; i < RGB_MATRIX_LED_COUNT; i++) set_color(i, r, g, b);
  65. }
  67. static void init(void) {
  68.     set_color_all(0,0,0);
  69. }
  71. static void flush(void) {
  72.     uint8_t  command[1 + LED_BYTES_PER_BANK];
  74.     // SUBTLE(ibash) alternate hands when transmitting led data, otherwise the
  75.     // mcu in the hand seems to have trouble keeping up with the i2c
  76.     // transmission
  77.     for (int bank = 0; bank < LED_BANKS; bank++) {
  78.         for (int hand = 0; hand < 2; hand++) {
  79.             int addr = I2C_ADDR(hand);
  80.             int i = (hand * LEDS_PER_HAND) + (bank * LEDS_PER_BANK);
  82.             if (memcmp(&led_state[i], &led_pending[i], LED_BYTES_PER_BANK) == 0) {
  83.                 // No change.
  84.                 continue;
  85.             }
  87.             // Update LED state
  88.             memcpy(&led_state[i], &led_pending[i], LED_BYTES_PER_BANK);
  90.             command[0] = TWI_CMD_LED_BASE + bank;
  91.             memcpy(&command[1], &led_pending[i], LED_BYTES_PER_BANK);
  92.             i2c_transmit(addr, command, sizeof(command), I2C_TIMEOUT);
  94.             // delay to prevent issues with the i2c bus
  95.             wait_us(10);
  96.         }
  97.     }
  98. }
  100. const rgb_matrix_driver_t rgb_matrix_driver = {.init = init, .flush = flush, .set_color = set_color, .set_color_all = set_color_all};