82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
/*
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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.io/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 "stm32f7xx.h"
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#include "stm32f7_i2c.h"
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// Resolution and Accuracy Settings
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#define GMOUSE_FT5336_PEN_CALIBRATE_ERROR 8
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#define GMOUSE_FT5336_PEN_CLICK_ERROR 6
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#define GMOUSE_FT5336_PEN_MOVE_ERROR 4
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#define GMOUSE_FT5336_FINGER_CALIBRATE_ERROR 14
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#define GMOUSE_FT5336_FINGER_CLICK_ERROR 18
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#define GMOUSE_FT5336_FINGER_MOVE_ERROR 14
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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_FT5336_BOARD_DATA_SIZE 0
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// The FT5336 I2C slave address (including the R/W bit)
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#define FT5336_SLAVE_ADDR 0x70
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#if !GFX_USE_OS_CHIBIOS
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#define AFRL AFR[0]
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#define AFRH AFR[1]
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#endif
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static gBool init_board(GMouse* m, unsigned instance)
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{
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(void)m;
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(void)instance;
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// I2C3_SCL GPIOH7, alternate, opendrain, highspeed
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RCC->AHB1ENR |= RCC_AHB1ENR_GPIOHEN; // Enable clock for
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GPIOH->MODER |= GPIO_MODER_MODER7_1; // Alternate function
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GPIOH->OTYPER |= GPIO_OTYPER_OT_7; // OpenDrain
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GPIOH->OSPEEDR &= ~GPIO_OSPEEDER_OSPEEDR7; // LowSpeed
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GPIOH->AFRL |= ((uint32_t)0x04 << 4*7); // AF4
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// I2C3_SDA GPIOH8, alternate, opendrain, highspeed
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RCC->AHB1ENR |= RCC_AHB1ENR_GPIOHEN; // Enable clock
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GPIOH->MODER |= GPIO_MODER_MODER8_1; // Alternate function
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GPIOH->OTYPER |= GPIO_OTYPER_OT_8; // OpenDrain
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GPIOH->OSPEEDR &= ~GPIO_OSPEEDER_OSPEEDR8; // LowSpeed
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GPIOH->AFRH |= ((uint32_t)0x04 << 4*0); // AF4
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// Initialize the I2C3 peripheral
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if (!(i2cInit(I2C3))) {
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return gFalse;
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}
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return gTrue;
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}
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static void write_reg(GMouse* m, uint8_t reg, uint8_t val)
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{
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(void)m;
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i2cWriteReg(I2C3, FT5336_SLAVE_ADDR, reg, val);
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}
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static uint8_t read_byte(GMouse* m, uint8_t reg)
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{
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(void)m;
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return i2cReadByte(I2C3, FT5336_SLAVE_ADDR, reg);
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}
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static uint16_t read_word(GMouse* m, uint8_t reg)
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{
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(void)m;
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return i2cReadWord(I2C3, FT5336_SLAVE_ADDR, reg);
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}
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#endif /* _GINPUT_LLD_MOUSE_BOARD_H */
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