Keyboard firmwares for Atmel AVR and Cortex-M
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  1. /* 2010/08/23 noname
  2. * keyboard firmware based on PJRC USB keyboard example
  3. */
  4. /* Keyboard example with debug channel, for Teensy USB Development Board
  5. * http://www.pjrc.com/teensy/usb_keyboard.html
  6. * Copyright (c) 2008 PJRC.COM, LLC
  7. *
  8. * Permission is hereby granted, free of charge, to any person obtaining a copy
  9. * of this software and associated documentation files (the "Software"), to deal
  10. * in the Software without restriction, including without limitation the rights
  11. * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12. * copies of the Software, and to permit persons to whom the Software is
  13. * furnished to do so, subject to the following conditions:
  14. *
  15. * The above copyright notice and this permission notice shall be included in
  16. * all copies or substantial portions of the Software.
  17. *
  18. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19. * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20. * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21. * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22. * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23. * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  24. * THE SOFTWARE.
  25. */
  26. #include <stdbool.h>
  27. #include <avr/io.h>
  28. #include <avr/interrupt.h>
  29. #include <util/delay.h>
  30. #include "keyboard.h"
  31. #include "usb.h"
  32. #include "matrix.h"
  33. #include "print.h"
  34. #include "debug.h"
  35. #include "util.h"
  36. #include "jump_bootloader.h"
  37. #ifdef PS2_MOUSE_ENABLE
  38. # include "ps2_mouse.h"
  39. #endif
  40. #define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
  41. bool debug_enable = false;
  42. bool debug_matrix = false;
  43. bool debug_keyboard = false;
  44. bool debug_mouse = false;
  45. int main(void)
  46. {
  47. DEBUG_LED_CONFIG;
  48. DEBUG_LED_OFF;
  49. // set for 16 MHz clock
  50. CPU_PRESCALE(0);
  51. // Initialize the USB, and then wait for the host to set configuration.
  52. // If the Teensy is powered without a PC connected to the USB port,
  53. // this will wait forever.
  54. usb_init();
  55. while (!usb_configured()) /* wait */ ;
  56. keyboard_init();
  57. matrix_scan();
  58. if (matrix_key_count() >= 3) {
  59. #ifdef DEBUG_LED
  60. for (int i = 0; i < 6; i++) {
  61. DEBUG_LED_CONFIG;
  62. DEBUG_LED_ON;
  63. _delay_ms(500);
  64. DEBUG_LED_OFF;
  65. _delay_ms(500);
  66. }
  67. #else
  68. _delay_ms(5000);
  69. #endif
  70. print_enable = true;
  71. debug_enable = true;
  72. debug_matrix = true;
  73. debug_keyboard = true;
  74. debug_mouse = true;
  75. print("debug enabled.\n");
  76. }
  77. if (matrix_key_count() >= 4) {
  78. print("jump to bootloader...\n");
  79. _delay_ms(1000);
  80. jump_bootloader(); // not return
  81. }
  82. while (1) {
  83. keyboard_proc();
  84. }
  85. }