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qmk_firmware

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

ps2_io.c (1169B)

    

  1. #include <stdbool.h>
  2. #include "ps2_io.h"
  4. // chibiOS headers
  5. #include "ch.h"
  6. #include "hal.h"
  7. #include "gpio.h"
  9. /* Check port settings for clock and data line */
  10. #if !(defined(PS2_CLOCK_PIN))
  11. #    error "PS/2 clock setting is required in config.h"
  12. #endif
  14. #if !(defined(PS2_DATA_PIN))
  15. #    error "PS/2 data setting is required in config.h"
  16. #endif
  18. /*
  19.  * Clock
  20.  */
  21. void clock_init(void) {}
  23. void clock_lo(void) {
  24.     palSetLineMode(PS2_CLOCK_PIN, PAL_MODE_OUTPUT_OPENDRAIN);
  25.     palWriteLine(PS2_CLOCK_PIN, PAL_LOW);
  26. }
  28. void clock_hi(void) {
  29.     palSetLineMode(PS2_CLOCK_PIN, PAL_MODE_OUTPUT_OPENDRAIN);
  30.     palWriteLine(PS2_CLOCK_PIN, PAL_HIGH);
  31. }
  33. bool clock_in(void) {
  34.     palSetLineMode(PS2_CLOCK_PIN, PAL_MODE_INPUT);
  35.     return palReadLine(PS2_CLOCK_PIN);
  36. }
  38. /*
  39.  * Data
  40.  */
  41. void data_init(void) {}
  43. void data_lo(void) {
  44.     palSetLineMode(PS2_DATA_PIN, PAL_MODE_OUTPUT_OPENDRAIN);
  45.     palWriteLine(PS2_DATA_PIN, PAL_LOW);
  46. }
  48. void data_hi(void) {
  49.     palSetLineMode(PS2_DATA_PIN, PAL_MODE_OUTPUT_OPENDRAIN);
  50.     palWriteLine(PS2_DATA_PIN, PAL_HIGH);
  51. }
  53. bool data_in(void) {
  54.     palSetLineMode(PS2_DATA_PIN, PAL_MODE_INPUT);
  55.     return palReadLine(PS2_DATA_PIN);
  56. }