93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
/*
|
|
* This file is subject to the terms of the GFX License. If a copy of
|
|
* the license was not distributed with this file, you can obtain one at:
|
|
*
|
|
* http://ugfx.org/license.html
|
|
*/
|
|
|
|
/*
|
|
* Peripheral : I2C1
|
|
* SDA : PB9
|
|
* SCL : PB6
|
|
*/
|
|
|
|
#ifndef _GINPUT_LLD_MOUSE_BOARD_H
|
|
#define _GINPUT_LLD_MOUSE_BOARD_H
|
|
|
|
// Avoid naming collisions with CubeHAL
|
|
#undef Red
|
|
#undef Green
|
|
#undef Blue
|
|
|
|
// Include CubeHAL
|
|
#include "stm32f4xx_hal.h"
|
|
|
|
// Resolution and Accuracy Settings
|
|
#define GMOUSE_EXC7200_PEN_CALIBRATE_ERROR 8
|
|
#define GMOUSE_EXC7200_PEN_CLICK_ERROR 6
|
|
#define GMOUSE_EXC7200_PEN_MOVE_ERROR 4
|
|
#define GMOUSE_EXC7200_FINGER_CALIBRATE_ERROR 14
|
|
#define GMOUSE_EXC7200_FINGER_CLICK_ERROR 18
|
|
#define GMOUSE_EXC7200_FINGER_MOVE_ERROR 14
|
|
|
|
// Number of bytes for the private area of this board file
|
|
#define GMOUSE_EXC7200_BOARD_DATA_SIZE 0
|
|
|
|
// The slave address of the I2C EXC7200
|
|
#define EXC7200_SLAVE_ADDR 0x08
|
|
|
|
static I2C_HandleTypeDef _i2cHandle;
|
|
|
|
static bool_t init_board(GMouse* m, unsigned driverinstance)
|
|
{
|
|
GPIO_InitTypeDef GPIO_InitStruct;
|
|
|
|
(void)m;
|
|
|
|
// Enable peripheral clocks
|
|
__HAL_RCC_I2C1_CLK_ENABLE();
|
|
__HAL_RCC_GPIOB_CLK_ENABLE();
|
|
|
|
// SCL pin setup
|
|
GPIO_InitStruct.Pin = GPIO_PIN_6;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
|
|
GPIO_InitStruct.Pull = GPIO_PULLUP;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
|
|
GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
|
|
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
|
|
|
|
// SDA pin setup
|
|
GPIO_InitStruct.Pin = GPIO_PIN_9;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
|
|
GPIO_InitStruct.Pull = GPIO_PULLUP;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
|
|
GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
|
|
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
|
|
|
|
// Initialize the I2C peripheral
|
|
_i2cHandle.Instance = I2C1;
|
|
_i2cHandle.Init.ClockSpeed = 400000;
|
|
_i2cHandle.Init.DutyCycle = I2C_DUTYCYCLE_2;
|
|
_i2cHandle.Init.OwnAddress1 = 0;
|
|
_i2cHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
|
|
_i2cHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED;
|
|
_i2cHandle.Init.OwnAddress2 = 0;
|
|
_i2cHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED;
|
|
_i2cHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED;
|
|
HAL_I2C_Init(&_i2cHandle);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static bool_t read_bytes(GMouse* m, uint8_t reg, uint8_t* buffer, uint8_t nbrBytes)
|
|
{
|
|
(void)m;
|
|
|
|
HAL_I2C_Master_Transmit(&_i2cHandle, (uint16_t)EXC7200_SLAVE_ADDR, (uint8_t*)®, 1, 10000);
|
|
HAL_I2C_Master_Receive(&_i2cHandle, (uint16_t)EXC7200_SLAVE_ADDR, buffer, nbrBytes, 10000);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
#endif /* _GINPUT_LLD_MOUSE_BOARD_H */
|