- // Copyright (c) 2018 Cirque Corp. Restrictions apply. See: www.cirque.com/sw-license
- #include "cirque_pinnacle.h"
- #include "i2c_master.h"
- #include "stdio.h"
-
- // Masks for Cirque Register Access Protocol (RAP)
- #define WRITE_MASK 0x80
- #define READ_MASK 0xA0
-
- extern bool touchpad_init;
-
- /* RAP Functions */
- // Reads <count> Pinnacle registers starting at <address>
- void RAP_ReadBytes(uint8_t address, uint8_t* data, uint8_t count) {
- uint8_t cmdByte = READ_MASK | address; // Form the READ command byte
- if (touchpad_init) {
- i2c_writeReg(CIRQUE_PINNACLE_ADDR << 1, cmdByte, NULL, 0, CIRQUE_PINNACLE_TIMEOUT);
- if (i2c_readReg(CIRQUE_PINNACLE_ADDR << 1, cmdByte, data, count, CIRQUE_PINNACLE_TIMEOUT) != I2C_STATUS_SUCCESS) {
- pd_dprintf("error cirque_pinnacle i2c_readReg\n");
- touchpad_init = false;
- }
- i2c_stop();
- }
- }
-
- // Writes single-byte <data> to <address>
- void RAP_Write(uint8_t address, uint8_t data) {
- uint8_t cmdByte = WRITE_MASK | address; // Form the WRITE command byte
-
- if (touchpad_init) {
- if (i2c_writeReg(CIRQUE_PINNACLE_ADDR << 1, cmdByte, &data, sizeof(data), CIRQUE_PINNACLE_TIMEOUT) != I2C_STATUS_SUCCESS) {
- pd_dprintf("error cirque_pinnacle i2c_writeReg\n");
- touchpad_init = false;
- }
- i2c_stop();
- }
- }
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