unleashed-firmware/applications/examples/fatfs_list.c
DrZlo13 59513b05ee
Simple sd card driver (#162)
* fixed inline functions for modern C standart

* more stack for application

* added library

* init fatfs library

* fatfs example application

* Merge with current master

* fix typo and delete old files

* cmsis os 2 reentrance fix

* Reworked dependency wait to support multiple dependency

* Build FatFS on local target, syscall.c is target-specific.

* run local target ok

* testcase for fatfs

Co-authored-by: aanper <mail@s3f.ru>
2020-10-08 17:37:19 +03:00

170 lines
4.6 KiB
C

#include "u8g2/u8g2.h"
#include "fatfs/ff.h"
#include "flipper.h"
#include <stdio.h>
// TODO currently we have small stack, so it will be static
FuriRecordSubscriber* furi_log;
#define STR_BUFFER_SIZE 128
char str_buffer[STR_BUFFER_SIZE];
uint8_t line_current = 0;
uint16_t line_position = 0;
// TODO this should be in the target driver
FATFS SD_FatFs;
char SD_Path[4];
typedef enum {
EventTypeStart,
EventTypeKey,
} AppEventType;
typedef struct {
union {
InputEvent input;
} value;
AppEventType type;
} AppEvent;
static void event_cb(const void* value, size_t size, void* ctx) {
QueueHandle_t event_queue = (QueueHandle_t)ctx;
AppEvent event;
event.type = EventTypeKey;
event.value.input = *(InputEvent*)value;
xQueueSend(event_queue, (void*)&event, 0);
}
void fatfs_list(void* p) {
const uint8_t line_size = 10;
const uint8_t lines_on_display = 6;
uint8_t bsp_result;
FRESULT result;
DIR dir;
FILINFO fno;
AppEvent event;
QueueHandle_t event_queue = xQueueCreate(2, sizeof(AppEvent));
furi_log = get_default_log();
FuriRecordSubscriber* fb_record = furi_open("u8g2_fb", false, false, NULL, NULL, NULL);
if(fb_record == NULL) {
fuprintf(furi_log, "[widget][fatfs_list] cannot create fb record\n");
furiac_exit(NULL);
}
FuriRecordSubscriber* event_record =
furi_open("input_events", false, false, event_cb, NULL, event_queue);
if(event_record == NULL) {
fuprintf(furi_log, "[widget][fatfs_list] cannot register input_events callback\n");
furiac_exit(NULL);
}
// clear display
u8g2_t* fb = furi_take(fb_record);
u8g2_ClearBuffer(fb);
furi_commit(fb_record);
// TODO these lines should be executed in the target driver
// so i dont fix "implicit declaration of function 'BSP_SD_Init'"
bsp_result = BSP_SD_Init();
if(bsp_result != 0) {
furi_take(fb_record);
u8g2_SetFont(fb, u8g2_font_6x10_mf);
u8g2_SetDrawColor(fb, 1);
u8g2_SetFontMode(fb, 1);
u8g2_DrawStr(fb, 0, 12, "SD card init error");
furi_commit(fb_record);
furiac_exit(NULL);
}
result = f_mount(&SD_FatFs, (TCHAR const*)SD_Path, 1);
if(result != FR_OK) {
furi_take(fb_record);
u8g2_SetFont(fb, u8g2_font_6x10_mf);
u8g2_SetDrawColor(fb, 1);
u8g2_SetFontMode(fb, 1);
u8g2_DrawStr(fb, 0, 12, "SD card mount error");
furi_commit(fb_record);
furiac_exit(NULL);
}
// ok, now we can work with sd card
// send start event
event.type = EventTypeStart;
xQueueSend(event_queue, (void*)&event, 0);
while(1) {
if(xQueueReceive(event_queue, (void*)&event, portMAX_DELAY)) {
// process buttons event
if(event.type == EventTypeKey) {
// button pressed
if(event.value.input.state == true) {
if(event.value.input.input == InputUp && line_position > 0) {
line_position--;
}
if(event.value.input.input == InputDown) {
line_position++;
}
}
}
// get display and draw
furi_take(fb_record);
u8g2_ClearBuffer(fb);
u8g2_SetFont(fb, u8g2_font_6x10_mf);
u8g2_SetDrawColor(fb, 1);
u8g2_SetFontMode(fb, 1);
line_current = 1;
// open root dir
result = f_opendir(&dir, "");
while(1) {
// read a directory item
result = f_readdir(&dir, &fno);
if(result != FR_OK) {
// cannot read dir
break;
}
if(fno.fname[0] == 0) {
// Break on end of dir
break;
}
// draw files on display
if(line_current > line_position &&
line_current <= (line_position + lines_on_display)) {
if(fno.fattrib & AM_DIR) {
snprintf(str_buffer, STR_BUFFER_SIZE, "DIR %s\n", fno.fname);
} else {
snprintf(str_buffer, STR_BUFFER_SIZE, "FIL %s\n", fno.fname);
}
u8g2_DrawStr(fb, 0, line_size * (line_current - line_position), str_buffer);
}
line_current++;
}
result = f_closedir(&dir);
furi_commit(fb_record);
}
}
furiac_exit(NULL);
}