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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 "ft6x06.h"
#include "stm32f4xx.h"
#include "stm32f4xx_hal.h"
// Resolution and Accuracy Settings
#define GMOUSE_FT6x06_PEN_CALIBRATE_ERROR 40
#define GMOUSE_FT6x06_PEN_CLICK_ERROR 16
#define GMOUSE_FT6x06_PEN_MOVE_ERROR 14
#define GMOUSE_FT6x06_FINGER_CALIBRATE_ERROR 50
#define GMOUSE_FT6x06_FINGER_CLICK_ERROR 28
#define GMOUSE_FT6x06_FINGER_MOVE_ERROR 24
// How much extra data to allocate at the end of the GMouse structure for the board's use
#define GMOUSE_FT6x06_BOARD_DATA_SIZE 0
/* The FT6x06 I2C slave address */
#define FT6x06_SLAVE_ADDR 0x54
I2C_HandleTypeDef i2cHandle;
/* Maximum speed (400kHz) */
#define CLOCKSPEED 400000;
static gBool init_board(GMouse* m, unsigned instance) {
(void)m;
(void)instance;
GPIO_InitTypeDef gpioInit;
/* I2C1_SCL PB8 */
__HAL_RCC_GPIOB_CLK_ENABLE(); // Enable GPIOB clock
gpioInit.Pin = GPIO_PIN_8;
gpioInit.Mode = GPIO_MODE_AF_OD; // I2C -> Open-drain
gpioInit.Pull = GPIO_NOPULL; // Open-drain -> no pull
gpioInit.Speed = GPIO_SPEED_FREQ_HIGH; // High speed
gpioInit.Alternate = GPIO_AF4_I2C1; // Alternate function 4
HAL_GPIO_Init(GPIOB, &gpioInit);
/* I2C1_SDA PB9 */
gpioInit.Pin = GPIO_PIN_9;
HAL_GPIO_Init(GPIOB, &gpioInit);
/* LCD_INT PJ5 */
__HAL_RCC_GPIOJ_CLK_ENABLE();
gpioInit.Pin = GPIO_PIN_5;
gpioInit.Mode = GPIO_MODE_INPUT; // Input mode
gpioInit.Pull = GPIO_PULLUP; // Pull-up
HAL_GPIO_Init(GPIOJ, &gpioInit);
/* I2C1 intialization */
i2cHandle.Instance = I2C1;
i2cHandle.Init.ClockSpeed = CLOCKSPEED;
i2cHandle.Init.DutyCycle = I2C_DUTYCYCLE_2; // Normal duty cycle
i2cHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; // No dual adressing needed
i2cHandle.Init.OwnAddress1 = 0x00;
i2cHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
i2cHandle.Init.OwnAddress2 = 0x00;
i2cHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; // All not needed so disabled
i2cHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
__HAL_RCC_I2C1_CLK_ENABLE();
if(HAL_I2C_Init(&i2cHandle) == HAL_OK)
return gTrue;
return gFalse;
}
static GFXINLINE void aquire_bus(GMouse* m) {
(void)m;
}
static GFXINLINE void release_bus(GMouse* m) {
(void)m;
}
static void write_reg(GMouse* m, uint8_t reg, uint8_t val) {
(void)m;
HAL_I2C_Mem_Write(&i2cHandle, FT6x06_SLAVE_ADDR, (uint16_t)reg, I2C_MEMADD_SIZE_8BIT, &val, 1, 1000);
}
static uint8_t read_byte(GMouse* m, uint8_t reg) {
(void)m;
uint8_t result;
HAL_I2C_Mem_Read(&i2cHandle, FT6x06_SLAVE_ADDR, (uint16_t)reg, I2C_MEMADD_SIZE_8BIT, &result, 1, 1000);
return result;
}
static uint16_t read_word(GMouse* m, uint8_t reg) {
(void)m;
uint8_t result[2];
HAL_I2C_Mem_Read(&i2cHandle, FT6x06_SLAVE_ADDR, (uint16_t)reg, I2C_MEMADD_SIZE_8BIT, result, 2, 1000);
return (result[0]<<8 | result[1]);
}
#endif /* _GINPUT_LLD_MOUSE_BOARD_H */
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