一直无法加载font.bin
This commit is contained in:
@@ -0,0 +1,270 @@
|
||||
/**
|
||||
* @file lv_port_fs_template.c
|
||||
*
|
||||
*/
|
||||
|
||||
/*Copy this file as "lv_port_fs.c" and set this value to "1" to enable content*/
|
||||
#if 1
|
||||
|
||||
/*********************
|
||||
* INCLUDES
|
||||
*********************/
|
||||
#include "lv_port_fs.h"
|
||||
#include "lvgl.h"
|
||||
|
||||
|
||||
static const char *TAG = "LVGL_FS";
|
||||
/*********************
|
||||
* DEFINES
|
||||
*********************/
|
||||
|
||||
/**********************
|
||||
* TYPEDEFS
|
||||
**********************/
|
||||
|
||||
/**********************
|
||||
* STATIC PROTOTYPES
|
||||
**********************/
|
||||
static void fs_init(void);
|
||||
|
||||
static void * fs_open(lv_fs_drv_t * drv, const char * path, lv_fs_mode_t mode);
|
||||
static lv_fs_res_t fs_close(lv_fs_drv_t * drv, void * file_p);
|
||||
static lv_fs_res_t fs_read(lv_fs_drv_t * drv, void * file_p, void * buf, uint32_t btr, uint32_t * br);
|
||||
static lv_fs_res_t fs_write(lv_fs_drv_t * drv, void * file_p, const void * buf, uint32_t btw, uint32_t * bw);
|
||||
static lv_fs_res_t fs_seek(lv_fs_drv_t * drv, void * file_p, uint32_t pos, lv_fs_whence_t whence);
|
||||
static lv_fs_res_t fs_size(lv_fs_drv_t * drv, void * file_p, uint32_t * size_p);
|
||||
static lv_fs_res_t fs_tell(lv_fs_drv_t * drv, void * file_p, uint32_t * pos_p);
|
||||
|
||||
static void * fs_dir_open(lv_fs_drv_t * drv, const char * path);
|
||||
static lv_fs_res_t fs_dir_read(lv_fs_drv_t * drv, void * rddir_p, char * fn, uint32_t fn_len);
|
||||
static lv_fs_res_t fs_dir_close(lv_fs_drv_t * drv, void * rddir_p);
|
||||
|
||||
/**********************
|
||||
* STATIC VARIABLES
|
||||
**********************/
|
||||
|
||||
/**********************
|
||||
* GLOBAL PROTOTYPES
|
||||
**********************/
|
||||
|
||||
/**********************
|
||||
* MACROS
|
||||
**********************/
|
||||
|
||||
/**********************
|
||||
* GLOBAL FUNCTIONS
|
||||
**********************/
|
||||
|
||||
void lv_port_fs_init(void)
|
||||
{
|
||||
/*----------------------------------------------------
|
||||
* Initialize your storage device and File System
|
||||
* -------------------------------------------------*/
|
||||
fs_init();
|
||||
|
||||
/*---------------------------------------------------
|
||||
* Register the file system interface in LVGL
|
||||
*--------------------------------------------------*/
|
||||
|
||||
static lv_fs_drv_t fs_drv;
|
||||
lv_fs_drv_init(&fs_drv);
|
||||
|
||||
/*Set up fields...*/
|
||||
fs_drv.letter = 'P';
|
||||
fs_drv.open_cb = fs_open;
|
||||
fs_drv.close_cb = fs_close;
|
||||
fs_drv.read_cb = fs_read;
|
||||
fs_drv.write_cb = fs_write;
|
||||
fs_drv.seek_cb = fs_seek;
|
||||
fs_drv.tell_cb = fs_tell;
|
||||
|
||||
fs_drv.dir_close_cb = fs_dir_close;
|
||||
fs_drv.dir_open_cb = fs_dir_open;
|
||||
fs_drv.dir_read_cb = fs_dir_read;
|
||||
|
||||
lv_fs_drv_register(&fs_drv);
|
||||
}
|
||||
|
||||
/**********************
|
||||
* STATIC FUNCTIONS
|
||||
**********************/
|
||||
|
||||
/*Initialize your Storage device and File system.*/
|
||||
static void fs_init(void)
|
||||
{
|
||||
/*E.g. for FatFS initialize the SD card and FatFS itself*/
|
||||
|
||||
/*You code here*/
|
||||
ESP_LOGE(TAG, "fs_init");
|
||||
}
|
||||
|
||||
/**
|
||||
* Open a file
|
||||
* @param drv pointer to a driver where this function belongs
|
||||
* @param path path to the file beginning with the driver letter (e.g. S:/folder/file.txt)
|
||||
* @param mode read: FS_MODE_RD, write: FS_MODE_WR, both: FS_MODE_RD | FS_MODE_WR
|
||||
* @return a file descriptor or NULL on error
|
||||
*/
|
||||
static void * fs_open(lv_fs_drv_t * drv, const char * path, lv_fs_mode_t mode)
|
||||
{
|
||||
|
||||
ESP_LOGE(TAG, "fs_open:%s", path);
|
||||
|
||||
lv_fs_res_t res = LV_FS_RES_NOT_IMP;
|
||||
|
||||
void * f = NULL;
|
||||
|
||||
if(mode == LV_FS_MODE_WR) {
|
||||
/*Open a file for write*/
|
||||
//f = ... /*Add your code here*/
|
||||
}
|
||||
else if(mode == LV_FS_MODE_RD) {
|
||||
/*Open a file for read*/
|
||||
//f = ... /*Add your code here*/
|
||||
}
|
||||
else if(mode == (LV_FS_MODE_WR | LV_FS_MODE_RD)) {
|
||||
/*Open a file for read and write*/
|
||||
//f = ... /*Add your code here*/
|
||||
}
|
||||
|
||||
return f;
|
||||
}
|
||||
|
||||
/**
|
||||
* Close an opened file
|
||||
* @param drv pointer to a driver where this function belongs
|
||||
* @param file_p pointer to a file_t variable. (opened with fs_open)
|
||||
* @return LV_FS_RES_OK: no error or any error from @lv_fs_res_t enum
|
||||
*/
|
||||
static lv_fs_res_t fs_close(lv_fs_drv_t * drv, void * file_p)
|
||||
{
|
||||
ESP_LOGE(TAG, "fs_close");
|
||||
|
||||
lv_fs_res_t res = LV_FS_RES_NOT_IMP;
|
||||
|
||||
/*Add your code here*/
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
/**
|
||||
* Read data from an opened file
|
||||
* @param drv pointer to a driver where this function belongs
|
||||
* @param file_p pointer to a file_t variable.
|
||||
* @param buf pointer to a memory block where to store the read data
|
||||
* @param btr number of Bytes To Read
|
||||
* @param br the real number of read bytes (Byte Read)
|
||||
* @return LV_FS_RES_OK: no error or any error from @lv_fs_res_t enum
|
||||
*/
|
||||
static lv_fs_res_t fs_read(lv_fs_drv_t * drv, void * file_p, void * buf, uint32_t btr, uint32_t * br)
|
||||
{
|
||||
lv_fs_res_t res = LV_FS_RES_NOT_IMP;
|
||||
|
||||
/*Add your code here*/
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
/**
|
||||
* Write into a file
|
||||
* @param drv pointer to a driver where this function belongs
|
||||
* @param file_p pointer to a file_t variable
|
||||
* @param buf pointer to a buffer with the bytes to write
|
||||
* @param btw Bytes To Write
|
||||
* @param bw the number of real written bytes (Bytes Written). NULL if unused.
|
||||
* @return LV_FS_RES_OK: no error or any error from @lv_fs_res_t enum
|
||||
*/
|
||||
static lv_fs_res_t fs_write(lv_fs_drv_t * drv, void * file_p, const void * buf, uint32_t btw, uint32_t * bw)
|
||||
{
|
||||
lv_fs_res_t res = LV_FS_RES_NOT_IMP;
|
||||
|
||||
/*Add your code here*/
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set the read write pointer. Also expand the file size if necessary.
|
||||
* @param drv pointer to a driver where this function belongs
|
||||
* @param file_p pointer to a file_t variable. (opened with fs_open )
|
||||
* @param pos the new position of read write pointer
|
||||
* @param whence tells from where to interpret the `pos`. See @lv_fs_whence_t
|
||||
* @return LV_FS_RES_OK: no error or any error from @lv_fs_res_t enum
|
||||
*/
|
||||
static lv_fs_res_t fs_seek(lv_fs_drv_t * drv, void * file_p, uint32_t pos, lv_fs_whence_t whence)
|
||||
{
|
||||
lv_fs_res_t res = LV_FS_RES_NOT_IMP;
|
||||
|
||||
/*Add your code here*/
|
||||
|
||||
return res;
|
||||
}
|
||||
/**
|
||||
* Give the position of the read write pointer
|
||||
* @param drv pointer to a driver where this function belongs
|
||||
* @param file_p pointer to a file_t variable
|
||||
* @param pos_p pointer to store the result
|
||||
* @return LV_FS_RES_OK: no error or any error from @lv_fs_res_t enum
|
||||
*/
|
||||
static lv_fs_res_t fs_tell(lv_fs_drv_t * drv, void * file_p, uint32_t * pos_p)
|
||||
{
|
||||
lv_fs_res_t res = LV_FS_RES_NOT_IMP;
|
||||
|
||||
/*Add your code here*/
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
/**
|
||||
* Initialize a 'lv_fs_dir_t' variable for directory reading
|
||||
* @param drv pointer to a driver where this function belongs
|
||||
* @param path path to a directory
|
||||
* @return pointer to the directory read descriptor or NULL on error
|
||||
*/
|
||||
static void * fs_dir_open(lv_fs_drv_t * drv, const char * path)
|
||||
{
|
||||
ESP_LOGE(TAG, "fs_dir_open:%s", path);
|
||||
void * dir = NULL;
|
||||
/*Add your code here*/
|
||||
//dir = ... /*Add your code here*/
|
||||
return dir;
|
||||
}
|
||||
|
||||
/**
|
||||
* Read the next filename form a directory.
|
||||
* The name of the directories will begin with '/'
|
||||
* @param drv pointer to a driver where this function belongs
|
||||
* @param rddir_p pointer to an initialized 'lv_fs_dir_t' variable
|
||||
* @param fn pointer to a buffer to store the filename
|
||||
* @param fn_len length of the buffer to store the filename
|
||||
* @return LV_FS_RES_OK: no error or any error from @lv_fs_res_t enum
|
||||
*/
|
||||
static lv_fs_res_t fs_dir_read(lv_fs_drv_t * drv, void * rddir_p, char * fn, uint32_t fn_len)
|
||||
{
|
||||
lv_fs_res_t res = LV_FS_RES_NOT_IMP;
|
||||
|
||||
/*Add your code here*/
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
/**
|
||||
* Close the directory reading
|
||||
* @param drv pointer to a driver where this function belongs
|
||||
* @param rddir_p pointer to an initialized 'lv_fs_dir_t' variable
|
||||
* @return LV_FS_RES_OK: no error or any error from @lv_fs_res_t enum
|
||||
*/
|
||||
static lv_fs_res_t fs_dir_close(lv_fs_drv_t * drv, void * rddir_p)
|
||||
{
|
||||
lv_fs_res_t res = LV_FS_RES_NOT_IMP;
|
||||
|
||||
/*Add your code here*/
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
#else /*Enable this file at the top*/
|
||||
|
||||
/*This dummy typedef exists purely to silence -Wpedantic.*/
|
||||
typedef int keep_pedantic_happy;
|
||||
#endif
|
||||
Reference in New Issue
Block a user