Keyboard firmwares for Atmel AVR and Cortex-M
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print.c 1.9KB

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  1. /* Very basic print functions, intended to be used with usb_debug_only.c
  2. * http://www.pjrc.com/teensy/
  3. * Copyright (c) 2008 PJRC.COM, LLC
  4. *
  5. * Permission is hereby granted, free of charge, to any person obtaining a copy
  6. * of this software and associated documentation files (the "Software"), to deal
  7. * in the Software without restriction, including without limitation the rights
  8. * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  9. * copies of the Software, and to permit persons to whom the Software is
  10. * furnished to do so, subject to the following conditions:
  11. *
  12. * The above copyright notice and this permission notice shall be included in
  13. * all copies or substantial portions of the Software.
  14. *
  15. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16. * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17. * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  18. * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19. * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20. * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  21. * THE SOFTWARE.
  22. */
  23. // Version 1.0: Initial Release
  24. #include <avr/io.h>
  25. #include <avr/pgmspace.h>
  26. #include "print.h"
  27. void print_P(const char *s)
  28. {
  29. char c;
  30. while (1) {
  31. c = pgm_read_byte(s++);
  32. if (!c) break;
  33. if (c == '\n') usb_debug_putchar('\r');
  34. usb_debug_putchar(c);
  35. }
  36. }
  37. void phex1(unsigned char c)
  38. {
  39. usb_debug_putchar(c + ((c < 10) ? '0' : 'A' - 10));
  40. }
  41. void phex(unsigned char c)
  42. {
  43. phex1(c >> 4);
  44. phex1(c & 15);
  45. }
  46. void phex16(unsigned int i)
  47. {
  48. phex(i >> 8);
  49. phex(i);
  50. }
  51. void pbin(unsigned char c)
  52. {
  53. for (int i = 7; i >= 0; i--) {
  54. usb_debug_putchar((c & (1<<i)) ? '1' : '0');
  55. }
  56. }
  57. void pbin_reverse(unsigned char c)
  58. {
  59. for (int i = 0; i < 8; i++) {
  60. usb_debug_putchar((c & (1<<i)) ? '1' : '0');
  61. }
  62. }