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touch driver: Add LVGL v8 compatibility

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C47D 2021-06-13 15:06:22 -05:00
parent f726311525
commit 0d32432f4c
4 changed files with 275 additions and 0 deletions
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lvgl_touch/gt911.h Normal file
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#ifndef __GT911_H
/*
* Copyright © 2021 Sturnus Inc.
* Permission is hereby granted, free of charge, to any person obtaining a copy of this
* software and associated documentation files (the “Software”), to deal in the Software
* without restriction, including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
* to whom the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or
* substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
* FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#define __GT911_H
#include <stdint.h>
#include <stdbool.h>
#ifdef LV_LVGL_H_INCLUDE_SIMPLE
#include "lvgl.h"
#else
#include "lvgl/lvgl.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
#define GT911_I2C_SLAVE_ADDR 0x5D
#define GT911_PRODUCT_ID_LEN 4
/* Register Map of GT911 */
#define GT911_PRODUCT_ID1 0x8140
#define GT911_PRODUCT_ID2 0x8141
#define GT911_PRODUCT_ID3 0x8142
#define GT911_PRODUCT_ID4 0x8143
#define GT911_FIRMWARE_VER_L 0x8144
#define GT911_FIRMWARE_VER_H 0x8145
#define GT911_X_COORD_RES_L 0x8146
#define GT911_X_COORD_RES_H 0x8147
#define GT911_Y_COORD_RES_L 0x8148
#define GT911_Y_COORD_RES_H 0x8149
#define GT911_VENDOR_ID 0x814A
#define GT911_STATUS_REG 0x814E
#define GT911_STATUS_REG_BUF 0x80
#define GT911_STATUS_REG_LARGE 0x40
#define GT911_STATUS_REG_PROX_VALID 0x20
#define GT911_STATUS_REG_HAVEKEY 0x10
#define GT911_STATUS_REG_PT_MASK 0x0F
#define GT911_TRACK_ID1 0x814F
#define GT911_PT1_X_COORD_L 0x8150
#define GT911_PT1_X_COORD_H 0x8151
#define GT911_PT1_Y_COORD_L 0x8152
#define GT911_PT1_Y_COORD_H 0x8153
#define GT911_PT1_X_SIZE_L 0x8154
#define GT911_PT1_X_SIZE_H 0x8155
typedef struct {
bool inited;
char product_id[GT911_PRODUCT_ID_LEN];
uint16_t max_x_coord;
uint16_t max_y_coord;
uint8_t i2c_dev_addr;
} gt911_status_t;
/**
* @brief Initialize for GT911 communication via I2C
* @param dev_addr: Device address on communication Bus (I2C slave address of GT911).
* @retval None
*/
void gt911_init(uint8_t dev_addr);
/**
* @brief Get the touch screen X and Y positions values. Ignores multi touch
* @param drv:
* @param data: Store data here
* @retval Always false
*/
bool gt911_read(lv_indev_drv_t *drv, lv_indev_data_t *data);
#ifdef __cplusplus
}
#endif
#endif /* __GT911_H */