diff options
Diffstat (limited to 'boards/base/Altera-MAX10-Neek/gmouse_lld_FT5316_board.h')
-rw-r--r-- | boards/base/Altera-MAX10-Neek/gmouse_lld_FT5316_board.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/boards/base/Altera-MAX10-Neek/gmouse_lld_FT5316_board.h b/boards/base/Altera-MAX10-Neek/gmouse_lld_FT5316_board.h new file mode 100644 index 00000000..0987f369 --- /dev/null +++ b/boards/base/Altera-MAX10-Neek/gmouse_lld_FT5316_board.h @@ -0,0 +1,106 @@ +/* + * 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 + */ + +#ifndef _GINPUT_LLD_MOUSE_BOARD_H +#define _GINPUT_LLD_MOUSE_BOARD_H + +#include <stdio.h> +#include <system.h> +#include "i2c_opencores.h" + +#define FT5316_I2C_SLAVE_ADDRESS 0x38 + +// Resolution and Accuracy Settings +#define GMOUSE_FT5316_PEN_CALIBRATE_ERROR 8 +#define GMOUSE_FT5316_PEN_CLICK_ERROR 6 +#define GMOUSE_FT5316_PEN_MOVE_ERROR 4 +#define GMOUSE_FT5316_FINGER_CALIBRATE_ERROR 14 +#define GMOUSE_FT5316_FINGER_CLICK_ERROR 18 +#define GMOUSE_FT5316_FINGER_MOVE_ERROR 14 + +// How much extra data to allocate at the end of the GMouse structure for the board's use +#define GMOUSE_FT5316_BOARD_DATA_SIZE 0 + +// Set this to TRUE if you want self-calibration. +// NOTE: This is not as accurate as real calibration. +// It requires the orientation of the touch panel to match the display. +// It requires the active area of the touch panel to exactly match the display size. +#define GMOUSE_FT5316_SELF_CALIBRATE TRUE + +static unsigned int device_write(unsigned char device_address, unsigned char sub_address, unsigned char wdata) +{ + I2C_start(I2C_OPENCORES_0_BASE, device_address, 0); // Device address in write mode + I2C_write(I2C_OPENCORES_0_BASE, sub_address, 0); // Set sub address to read register + I2C_write(I2C_OPENCORES_0_BASE, wdata, 1); // Set write register + + return 1; +} + +static unsigned int device_read(unsigned char device_address, unsigned char sub_address) +{ + unsigned int rdata; + + I2C_start(I2C_OPENCORES_0_BASE, device_address, 0); // Device address in write mode + rdata = I2C_write(I2C_OPENCORES_0_BASE, sub_address, 0); // Set sub address to read register. + I2C_start(I2C_OPENCORES_0_BASE, device_address, 1); // Send start again but this time in read mode + rdata = I2C_read(I2C_OPENCORES_0_BASE, 1); // Read the register and send stop + + return rdata; +} + +static unsigned int device_read_16(unsigned char device_address, unsigned char sub_address) +{ + unsigned int rdata_l; + unsigned int rdata_h; + + I2C_start(I2C_OPENCORES_0_BASE, device_address, 0); // Eccelerometer address in write mode + rdata_l = I2C_write(I2C_OPENCORES_0_BASE, sub_address, 0); // Set sub address to read register. + I2C_start(I2C_OPENCORES_0_BASE, device_address, 1); // Send start again but this time in read mode + rdata_l = I2C_read(I2C_OPENCORES_0_BASE, 0); // Read the register and MACK + rdata_h = I2C_read(I2C_OPENCORES_0_BASE, 1); // Read the next register and send stop + + return (0xFFFF & ((rdata_h << 8) | rdata_l)); +} + +static bool_t init_board(GMouse* m, unsigned instance) +{ + (void)m; + (void)instance; + + I2C_init(I2C_OPENCORES_0_BASE, 50000000, 400000); + + return TRUE; +} + +static void write_reg(GMouse* m, uint8_t reg, uint8_t val) +{ + (void)m; + + device_write(FT5316_I2C_SLAVE_ADDRESS, reg, val); +} + +static uint8_t read_byte(GMouse* m, uint8_t reg) +{ + (void)m; + uint8_t ret = 0; + + ret = (uint8_t)device_read(FT5316_I2C_SLAVE_ADDRESS, reg); + + return ret; +} + +static uint16_t read_word(GMouse* m, uint8_t reg) +{ + (void)m; + uint16_t ret = 0; + + ret = (uint16_t)device_read(FT5316_I2C_SLAVE_ADDRESS, reg); + + return ret; +} + +#endif /* _GINPUT_LLD_MOUSE_BOARD_H */ |