some more bullshit, hopefully this will work out even ...

diff --git a/betty/functions.c b/betty/functions.c
index 43dfebc..cc03941 100644 (file)
--- a/betty/functions.c
+++ b/betty/functions.c
@@ -11,16 +11,20 @@
  * functions
  */
 
-int strlen(char *string) {
+#define modulo(d,x,y)  (d)=(x); \
+                       while((d)>=(y)) \
+                               (d)-=(y);
 
-       int cnt;
+int strlen(char *s) {
 
-       cnt=0;
+       int n;
 
-       while(string[cnt])
-               cnt++;
+       n=0;
 
-       return cnt;
+       while(s[n])
+               n++;
+
+       return n;
 }
 
 int strncmp(char *a,char *b,int n) {

diff --git a/betty/pffs.c b/betty/pffs.c
index f1fe3f4..7ba2232 100644 (file)
--- a/betty/pffs.c
+++ b/betty/pffs.c
@@ -122,6 +122,32 @@ int pffs_orientate(t_pffs *pffs) {
        return 0;
 }
 
+int pffs_get_data_sec(t_pffs_fd *fd) {
+
+       t_pffs *pffs;
+       u8 sec,sec0,sec1;
+
+       pffs->fd->pffs;
+       sec0=pffs->sec_num_data[0];
+       sec1=pffs->sec_num_data[1];
+
+       for(sec=sec0;sec<sec1;sec++) {
+               if((addr<pffs->sec_addr[sec+1])&(addr>=pffs->sec_addr[sec])) {
+                       fd->data_sec=sec;
+                       break;
+               }
+       }
+
+       return 0;
+}
+
+int pffs_rearrange(t_pffs *pffs) {
+
+       
+
+       return 0;
+}
+
 int pffs_flash_register(t_pffs *pffs,u32 base_addr,u32 *sec_addr,
                         u8 sec_num_data_min,u8 sec_num_data_max,
                        u8 sec_num_index0,u8 sec_num_index1,
@@ -168,7 +194,7 @@ int pffs_find_file(t_pffs *pffs,char *file,u32 *iaddr,u32 *daddr,u16 *len) {
 
        *iaddr=pffs->base_addr|pffs->sec_addr[pffs->index_sec];
 
-       while(*iaddr<pffs->sec_addr[pffs->index_sec]) {
+       while(*iaddr<pffs->sec_addr[pffs->index_sec+1]) {
                pffs->fr(*iaddr,data,3);
 
                if(!pffs_check_magic(data[0]))
@@ -204,6 +230,32 @@ int pffs_open_read(t_pffs_fd *fd) {
        return ret;
 }
 
+int pffs_write_index_init(t_pffs_fd *fd) {
+
+       t_pffs *pffs;
+       u16 data[PFFS_HEADER_SIZE+PFFS_MAX_FILENAME_SIZE];
+
+       pffs=fd->pffs;
+       fns=fd->fn-size;
+
+       if(fd->iaddr+6+fns+fns>=pffs->sec_addr[pffs->index_sec+1])
+               return PFFS_NO_INDEX_SPACE_LEFT;
+
+       data[0]=0x7f00|(fns<<4)|((fd->daddr>>16)&0xf);
+       data[1]=fd->daddr&0xffff;
+       pffs->fw(fd->iaddr,data,4);
+       pffs->fw(fd->iaddr+6,fd->file,fns+fns);
+       
+       return PFFS_INDEX_WROTE_INIT;
+}
+
+int pffs_write_finish(t_pffs_fd *fd) {
+
+       fd->pffs->fw(fd->iaddr+4,&(fd->len),2);
+
+       return 0;
+}
+
 int pffs_open_write(t_pffs_fd *fd) {
 
        int ret;
@@ -213,9 +265,12 @@ int pffs_open_write(t_pffs_fd *fd) {
 
        switch(ret) {
                case PFFS_FILE_NOT_FOUND:
-                       fd->mode=PFFS_WRITE;
-                       pffs_write_index_init();
+                       ret=pffs_write_index_init();
+                       if(ret!=PFFS_INDEX_WROTE_INIT)
+                               break;
                        fd->dptr=fd->daddr;
+                       fd->len=0;
+                       fd->mode=PFFS_WRITE;
                        break;
                case PFFS_FILE_FOUND:
                default:
@@ -234,11 +289,12 @@ int pffs_open(t_pffs *pffs,t_pffs_fd *fd,char *file,u8 mode) {
 
        /* filename */
        fd->fn_size=strlen(file);
-       if(fd->fn_size>PFFS_MAX_FILENAME_SIZE+PFFS_MAX_FILENAME_SIZE)
-               return PFFS_FILENAME_TOO_LONG;
-       strncpy(fd->file,file,fd->fn_size);
        if(fd->fn_size&1)
                fd->file[fd->fn_size++]='\0';
+       fd->fn_size>>1;
+       if(fd->fn_size>PFFS_MAX_FILENAME_SIZE)
+               return PFFS_FILENAME_TOO_LONG;
+       strncpy(fd->file,file,fd->fn_size+fd->fn_size);
 
        /* clear fd mode */
        fd->mode=0;
@@ -262,19 +318,25 @@ int pffs_open(t_pffs *pffs,t_pffs_fd *fd,char *file,u8 mode) {
 int pffs_read(t_pffs_fd *fd,u8 *buf,int len) {
 
        int missing;
+       int sec_end;
 
        /* check whether valid */
        if(!(fd->mode&PFFS_READ))
                return PFFS_EINVAL;
 
-       /* checl len */
+       /* check len */
        if(len&1)
                return PFFS_INVALID_LEN;
 
+       /* check how much we read */
        missing=fd->len-(fd->dptr-fd->daddr);
        if(len>missing)
                len=missing;
 
+       if((fd->dptr+len)>=pffs->sec_addr[pffs->sec_num_data[1]+1])
+               sec_end=pffs->sec_addr[pffs->sec_num_data[1]+1]-fd->dptr;
+
+
        /* read */
        fd->pffs->fr(fd->dptr,(u16 *)buf,len);
        fd->dptr+=len;;
@@ -282,3 +344,21 @@ int pffs_read(t_pffs_fd *fd,u8 *buf,int len) {
        return len;
 }
 
+int pffs_write(t_pffs_fd *fd,u8 buf,int len) {
+
+       /* check whether valid */
+       if(!(fd->mode&PFFS_WRITE))
+               return PFFS_EINVAL;
+
+       /* check len */
+       if(len&1)
+               return PFFS_INVALID_LEN;
+
+       missing=PFFS_MAX_FILE_SIZE-fd->len;
+       if(len>missing)
+               len=missing;
+
+       /* check for  */
+       if(fd->dptr+len>=pffs->)
+}
+

diff --git a/betty/pffs.h b/betty/pffs.h
index a37876e..6ddfbde 100644 (file)
--- a/betty/pffs.h
+++ b/betty/pffs.h
@@ -15,6 +15,7 @@
 /* defines */
 #define PFFS_MAX_FILENAME_SIZE 15              // in words
 #define PFFS_HEADER_SIZE       3               // in words
+#define PFFS_MAX_FILE_SIZE     0xffff
 
 /* general pffs system */
 #define PFFS_INDEX_FOUND       0x00
@@ -32,11 +33,13 @@
 #define PFFS_INDEX_MAGIC_MASK  0xf000
 #define PFFS_STATE_MASK                0x0f00
 #define PFFS_FNLEN_MASK                0x00f0
-#define PFFS_LEN_MSB_MASK      0x000f
+#define PFFS_ADDR_MSB_MASK     0x000f
 
 #define PFFS_INDEX_MAGIC       0x7000
 #define PFFS_INDEX_REMOVED     0x0700
 
+#define PFFS_ADDR_MSB          
+
 /* file modes */
 #define PFFS_READ              0x01
 #define PFFS_WRITE             0x02
@@ -48,11 +51,13 @@
 #define PFFS_SEEK_END          0x03
 
 /* pffs open / write / read return codes */
-#define PFFS_FILE_FOUND                0x01
-#define PFFS_FILE_NOT_FOUND    0x02
-#define PFFS_NO_SPACE_LEFT     0x04
-#define PFFS_FILENAME_TOO_LONG 0x08
-#define PFFS_MODE_UNSUPPORTED  0x10
+#define PFFS_FILE_FOUND                        0x01
+#define PFFS_FILE_NOT_FOUND            0x02
+#define PFFS_NO_SPACE_LEFT             0x04
+#define PFFS_FILENAME_TOO_LONG         0x08
+#define PFFS_MODE_UNSUPPORTED          0x10
+#define PFFS_NO_INDEX_SPACE_LEFT       0x20
+#define PFFS_INDEX_WROTE_INIT          0x40
 
 #define PFFS_INVALID_LEN       0x01
 #define PFFS_EINVAL            0x02
@@ -78,17 +83,25 @@ typedef struct s_pffs {
 } t_pffs;
 
 typedef struct s_pffs_fd {
-       u32 daddr;
-       u32 dptr;
-       u32 iaddr;
-       u16 len;
-       char file[PFFS_MAX_FILENAME_SIZE+PFFS_MAX_FILENAME_SIZE];
-       u8 fn_size;
-       u8 mode;
-       t_pffs *pffs;
+       u32 daddr;                      // data start address
+       u8 data_sec;                    // current data sector
+       u32 dptr;                       // data pointer
+       u32 iaddr;                      // index address
+       u16 len;                        // file size
+       char file[PFFS_MAX_FILENAME_SIZE+PFFS_MAX_FILENAME_SIZE]; // the file
+       u8 fn_size;                     // file name size
+       u8 mode;                        // mode, eg: write, read
+       t_pffs *pffs;                   // the pffs main struct
 } t_pffs_fd;
 
-/* function prototypes */
+/* function prototypes (only the ones applications should use!) */
+int pffs_flash_register(t_pffs *pffs,u32 base_addr,u32 *sec_addr,
+                        u8 sec_num_data_min,u8 sec_num_data_max,
+                        u8 sec_num_index0,u8 sec_num_index1,
+                        int (*fw)(u32 addr,u16 *buf,int len),
+                        int (*fr)(u32 addr,u16 *buf,int len),
+                        int (*fe)(u32 addr));
+int pffs_init(t_pffs *pffs);
 int pffs_open(t_pffs *pffs,t_pffs_fd *fd,char *file,u8 mode);
 int pffs_write(t_pffs_fd *fd,u8 *buf,int len);
 int pffs_read(t_pffs_fd *fd,u8 *buf,int len);