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