Added disk/partition handling

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@405 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 219 insertions, 0 deletions

diff --git a/firmware/test/fat/main.c b/firmware/test/fat/main.c
new file mode 100644
index 0000000..ffe3dd8
--- /dev/null
+++ b/firmware/test/fat/main.c
@@ -0,0 +1,219 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "fat.h"
+#include "ata.h"
+#include "debug.h"
+#include "disk.h"
+
+void dbg_dump_sector(int sec);
+void dbg_dump_buffer(unsigned char *buf);
+void dbg_print_bpb(struct bpb *bpb);
+void dbg_console(struct bpb *bpb);
+
+void dbg_dump_sector(int sec)
+{
+    unsigned char buf[512];
+
+    ata_read_sectors(sec,1,buf);
+    printf("---< Sector %d >-----------------------------------------\n", sec);
+    dbg_dump_buffer(buf);
+}
+
+void dbg_dump_buffer(unsigned char *buf)
+{
+    int i, j;
+    unsigned char c;
+    unsigned char ascii[33];
+
+    for(i = 0;i < 512/16;i++)
+    {
+        for(j = 0;j < 16;j++)
+        {
+            c = buf[i*16+j];
+
+            printf("%02x ", c);
+            if(c < 32 || c > 127)
+            {
+                ascii[j] = '.';
+            }
+            else
+            {
+                ascii[j] = c;
+            }
+        }
+
+        ascii[j] = 0;
+        printf("%s\n", ascii);
+    }
+}
+
+void dbg_print_bpb(struct bpb *bpb)
+{
+    printf("bpb_oemname = \"%s\"\n", bpb->bs_oemname);
+    printf("bpb_bytspersec = %d\n", bpb->bpb_bytspersec);
+    printf("bpb_secperclus = %d\n", bpb->bpb_secperclus);
+    printf("bpb_rsvdseccnt = %d\n", bpb->bpb_rsvdseccnt);
+    printf("bpb_numfats = %d\n", bpb->bpb_numfats);
+    printf("bpb_rootentcnt = %d\n", bpb->bpb_rootentcnt);
+    printf("bpb_totsec16 = %d\n", bpb->bpb_totsec16);
+    printf("bpb_media = %02x\n", bpb->bpb_media);
+    printf("bpb_fatsz16 = %d\n", bpb->bpb_fatsz16);
+    printf("bpb_secpertrk = %d\n", bpb->bpb_secpertrk);
+    printf("bpb_numheads = %d\n", bpb->bpb_numheads);
+    printf("bpb_hiddsec = %u\n", bpb->bpb_hiddsec);
+    printf("bpb_totsec32 = %u\n", bpb->bpb_totsec32);
+
+    printf("bs_drvnum = %d\n", bpb->bs_drvnum);
+    printf("bs_bootsig = %02x\n", bpb->bs_bootsig);
+    if(bpb->bs_bootsig == 0x29)
+    {
+       printf("bs_volid = %xl\n", bpb->bs_volid);
+       printf("bs_vollab = \"%s\"\n", bpb->bs_vollab);
+       printf("bs_filsystype = \"%s\"\n", bpb->bs_filsystype);
+    }
+
+    printf("bpb_fatsz32 = %u\n", bpb->bpb_fatsz32);
+    printf("last_word = %04x\n", bpb->last_word);
+
+    printf("fat_type = FAT32\n");
+}
+
+void dbg_dir(struct bpb *bpb, int currdir)
+{
+    struct fat_dirent dent;
+    struct fat_direntry de;
+
+    if(fat_opendir(bpb, &dent, currdir) >= 0)
+    {
+        while(fat_getnext(bpb, &dent, &de) >= 0)
+        {
+            printf("%s (%d)\n", de.name,de.firstcluster);
+        }
+    }
+    else
+    {
+        fprintf(stderr, "Could not read dir on cluster %d\n", currdir);
+    }
+}
+
+void dbg_type(struct bpb *bpb, int cluster)
+{
+    unsigned char buf[SECTOR_SIZE*5];
+    struct fat_fileent ent;
+    int i;
+
+    fat_open(bpb,cluster,&ent);
+    
+    for (i=0;i<5;i++)
+        if(fat_read(bpb, &ent, 1, buf) >= 0)
+        {
+            buf[SECTOR_SIZE]=0;
+            printf("%s\n", buf);
+        }
+        else
+        {
+            fprintf(stderr, "Could not read file on cluster %d\n", cluster);
+        }
+}
+
+char current_directory[256] = "\\";
+int last_secnum = 0;
+
+void dbg_prompt(void)
+{
+    printf("C:%s> ", current_directory);
+}
+
+void dbg_console(struct bpb* bpb)
+{
+    char cmd[32] = "";
+    char last_cmd[32] = "";
+    int quit = 0;
+    char *s;
+
+    while(!quit)
+    {
+        dbg_prompt();
+        if(fgets(cmd, sizeof(cmd) - 1, stdin))
+        {
+            if(strlen(cmd) == 1) /* empty command? */
+            {
+                strcpy(cmd, last_cmd);
+            }
+
+            /* Get the first token */
+	    s = strtok(cmd, " \n");
+            if(s)
+            {
+                if(!strcasecmp(s, "dir"))
+                {
+                    int secnum = 0;
+                    if((s = strtok(NULL, " \n")))
+                    {
+                        secnum = atoi(s);
+                    }
+                    dbg_dir(bpb, secnum);
+                    continue;
+                }
+
+                if(!strcasecmp(s, "ds"))
+                {
+                    /* Remember the command */
+                    strcpy(last_cmd, s);
+                    
+                    if((s = strtok(NULL, " \n")))
+                    {
+                        last_secnum = atoi(s);
+                    }
+                    else
+                    {
+                        last_secnum++;
+                    }
+                    printf("secnum: %d\n", last_secnum);
+                    dbg_dump_sector(last_secnum);
+                    continue;
+                }
+
+                if(!strcasecmp(s, "type"))
+                {
+                    int cluster = 0;
+                    if((s = strtok(NULL, " \n")))
+                    {
+                        cluster = atoi(s);
+                    }
+                    dbg_type(bpb,cluster);
+                    continue;
+                }
+            
+                if(!strcasecmp(s, "exit") ||
+                   !strcasecmp(s, "x"))
+                {
+                    quit = 1;
+                }
+            }
+        }
+    }
+}
+
+int main(int argc, char *argv[])
+{
+    struct bpb bpb;
+    
+    if(ata_init()) {
+        DEBUGF("*** Warning! The disk is uninitialized\n");
+        return -1;
+    }
+    if (disk_init()) {
+        DEBUGF("*** Failed reading partitions\n");
+        return -1;
+    }
+
+    if(fat_mount(&bpb,part[0].start)) {
+        DEBUGF("*** Failed mounting fat\n");
+    }
+
+    dbg_console(&bpb);
+    return 0;
+}
+