qmk_firmware

QMK firmware for my keyboards (Corne, Sweep Ferris) and trackball (Ploopy Adept)
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cirque_pinnacle_i2c.c (1278B)

      1 // Copyright (c) 2018 Cirque Corp. Restrictions apply. See: www.cirque.com/sw-license
      2 #include "cirque_pinnacle.h"
      3 #include "i2c_master.h"
      4 #include "stdio.h"
      5 
      6 // Masks for Cirque Register Access Protocol (RAP)
      7 #define WRITE_MASK 0x80
      8 #define READ_MASK 0xA0
      9 
     10 /*  RAP Functions */
     11 // Reads <count> Pinnacle registers starting at <address>
     12 void RAP_ReadBytes(uint8_t address, uint8_t* data, uint8_t count) {
     13     uint8_t cmdByte = READ_MASK | address; // Form the READ command byte
     14     i2c_write_register(CIRQUE_PINNACLE_ADDR << 1, cmdByte, NULL, 0, CIRQUE_PINNACLE_TIMEOUT);
     15     if (i2c_read_register(CIRQUE_PINNACLE_ADDR << 1, cmdByte, data, count, CIRQUE_PINNACLE_TIMEOUT) != I2C_STATUS_SUCCESS) {
     16         pd_dprintf("error cirque_pinnacle i2c_read_register\n");
     17         pointing_device_set_status(POINTING_DEVICE_STATUS_FAILED);
     18     }
     19 }
     20 
     21 // Writes single-byte <data> to <address>
     22 void RAP_Write(uint8_t address, uint8_t data) {
     23     uint8_t cmdByte = WRITE_MASK | address; // Form the WRITE command byte
     24     if (i2c_write_register(CIRQUE_PINNACLE_ADDR << 1, cmdByte, &data, sizeof(data), CIRQUE_PINNACLE_TIMEOUT) != I2C_STATUS_SUCCESS) {
     25         pd_dprintf("error cirque_pinnacle i2c_write_register\n");
     26         pointing_device_set_status(POINTING_DEVICE_STATUS_FAILED);
     27     }
     28 }