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/*
* 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.io/license.html
*/
#ifndef _GINPUT_LLD_MOUSE_BOARD_H
#define _GINPUT_LLD_MOUSE_BOARD_H
#include "stm32f7xx.h"
#include "stm32f7_i2c.h"
// Resolution and Accuracy Settings
#define GMOUSE_FT5336_PEN_CALIBRATE_ERROR 8
#define GMOUSE_FT5336_PEN_CLICK_ERROR 6
#define GMOUSE_FT5336_PEN_MOVE_ERROR 4
#define GMOUSE_FT5336_FINGER_CALIBRATE_ERROR 14
#define GMOUSE_FT5336_FINGER_CLICK_ERROR 18
#define GMOUSE_FT5336_FINGER_MOVE_ERROR 14
// How much extra data to allocate at the end of the GMouse structure for the board's use
#define GMOUSE_FT5336_BOARD_DATA_SIZE 0
// The FT5336 I2C slave address (including the R/W bit)
#define FT5336_SLAVE_ADDR 0x70
#if !GFX_USE_OS_CHIBIOS
#define AFRL AFR[0]
#define AFRH AFR[1]
#endif
static gBool init_board(GMouse* m, unsigned instance)
{
(void)m;
(void)instance;
// I2C3_SCL GPIOH7, alternate, opendrain, highspeed
RCC->AHB1ENR |= RCC_AHB1ENR_GPIOHEN; // Enable clock for
GPIOH->MODER |= GPIO_MODER_MODER7_1; // Alternate function
GPIOH->OTYPER |= GPIO_OTYPER_OT_7; // OpenDrain
GPIOH->OSPEEDR &= ~GPIO_OSPEEDER_OSPEEDR7; // LowSpeed
GPIOH->AFRL |= ((uint32_t)0x04 << 4*7); // AF4
// I2C3_SDA GPIOH8, alternate, opendrain, highspeed
RCC->AHB1ENR |= RCC_AHB1ENR_GPIOHEN; // Enable clock
GPIOH->MODER |= GPIO_MODER_MODER8_1; // Alternate function
GPIOH->OTYPER |= GPIO_OTYPER_OT_8; // OpenDrain
GPIOH->OSPEEDR &= ~GPIO_OSPEEDER_OSPEEDR8; // LowSpeed
GPIOH->AFRH |= ((uint32_t)0x04 << 4*0); // AF4
// Initialize the I2C3 peripheral
if (!(i2cInit(I2C3))) {
return gFalse;
}
return gTrue;
}
static void write_reg(GMouse* m, uint8_t reg, uint8_t val)
{
(void)m;
i2cWriteReg(I2C3, FT5336_SLAVE_ADDR, reg, val);
}
static uint8_t read_byte(GMouse* m, uint8_t reg)
{
(void)m;
return i2cReadByte(I2C3, FT5336_SLAVE_ADDR, reg);
}
static uint16_t read_word(GMouse* m, uint8_t reg)
{
(void)m;
return i2cReadWord(I2C3, FT5336_SLAVE_ADDR, reg);
}
#endif /* _GINPUT_LLD_MOUSE_BOARD_H */
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