select files to execute

firmware/filesystem/Makefile

@@ -10,6 +10,7 @@ OBJS += iobase.o
 OBJS += mmc.o
 OBJS += at45db041d.o
 OBJS += util.o
+OBJS += select.o
 
 LIBNAME=fat
 

firmware/filesystem/select.c

@@ -0,0 +1,85 @@
+#include <string.h>
+#include "lcd/lcd.h"
+#include "lcd/allfonts.h"
+#include "lcd/print.h"
+#include "filesystem/ff.h"
+#include "basic/basic.h"
+
+#define FLEN 13
+
+int getFiles(char files[][FLEN], uint8_t count, uint16_t skip, char *ext)
+{
+    DIR dir;                /* Directory object */
+    FILINFO Finfo;
+    FRESULT res;
+    int ctr;
+    int pos = 0;
+    res = f_opendir(&dir, "0:");
+    if(res){
+        //lcdPrint("OpenDir:"); lcdPrintln(f_get_rc_string(res)); lcdRefresh(); 
+        return 0;
+    };
+    for(ctr=0;pos<count;ctr++) {
+        res = f_readdir(&dir, &Finfo);
+        if ((res != FR_OK) || !Finfo.fname[0]) break;
+        if( ctr < skip )
+            continue;
+        int len=strlen(Finfo.fname);
+        int extlen = strlen(ext);
+
+        if( strcmp(Finfo.fname+len-extlen, ext) != 0)
+            continue;
+        if (Finfo.fattrib & AM_DIR)
+            continue;
+
+        strcpy(files[pos++],Finfo.fname);
+    }
+    return pos;
+}
+
+int selectFile(char *filename, char *extension)
+{
+    int skip = 0;
+    char key;
+    int selected = 0;
+    font=&Font_7x8;
+    while(1){
+        char files[7][FLEN];
+        int count = getFiles(files, 7, skip, extension);
+        
+        redraw:
+        if( count )
+            lcdClear();
+        lcdPrintln("Select file:");
+        for(int i=0; i<count; i++){
+            if( selected == i )
+                lcdPrint(">");
+            lcdPrintln(files[i]);
+        }
+        lcdRefresh();
+        key=getInputWait();
+        delayms(20);
+        if( key==BTN_DOWN ){
+            if( selected < 6 ){
+                selected++;
+                goto redraw;
+            }else{
+                skip++;
+            }
+        }else if( key==BTN_UP ){
+            if( selected > 0 ){
+                selected--;
+                goto redraw;
+            }else{
+                if( skip > 0 ){
+                    skip--;
+                }
+            }
+        }else if( key==BTN_LEFT ){
+            return 1;
+        }else if( key==BTN_RIGHT ){
+            strcpy(filename, files[selected]);
+            return 0;
+        }
+    }
+}

firmware/filesystem/select.h

@@ -0,0 +1,10 @@
+#ifndef _SELECT_H_
+#define _SELECT_H_
+#include <stdint.h>
+
+#define FLEN 13
+
+int getFiles(char files[][FLEN], uint8_t count, uint16_t skip, char *ext);
+int selectFile(char *filename, char *extension);
+
+#endif