X-Git-Url: https://hackdaworld.org/gitweb/?p=my-code%2Farm.git;a=blobdiff_plain;f=betty%2Fpffs.h;fp=betty%2Fpffs.h;h=faf0d3801d8f51f9c4bbd0327cfc48bf6d256ffe;hp=72ec8802265e459a6e277dcfb8183a4b78b1bb43;hb=bbf7d44cf935538f5a353665f160e5cd3ed59da8;hpb=38c6de0e83cd19fd4c17c47844b80ba94c150b4b

diff --git a/betty/pffs.h b/betty/pffs.h
index 72ec880..faf0d38 100644
--- a/betty/pffs.h
+++ b/betty/pffs.h
@@ -10,19 +10,37 @@
 
 #include "lpc2xxx.h"
 #include "types.h"
+#include "functions.h"
 
 /* defines */
+#define PFFS_MAX_FILENAME_SIZE	15		// in words
+#define PFFS_HEADER_SIZE	3		// in words
 
 #define PFFS_REGISTERED		(1<<0)
 
 #define PFFS_INDEX_MAGIC	0x7000
 
+#define PFFS_INDEX_MAGIC_MASK	0xf000
+#define PFFS_RESERVED_MASK	0x0f00
+#define PFFS_FNLEN_MASK		0x00f0
+#define PFFS_LEN_MSB_MASK	0x000f
+
+/* file modes */
+#define PFFS_READ		0x01
+#define PFFS_WRITE		0x02
+#define PFFS_RDWR		0x03
+
+/* pffs write / read return codes */
+#define PFFS_FILE_EXISTS	0x01
+#define PFFS_FILE_NOT_FOUND	0x02
+#define PFFS_NO_SPACE_LEFT	0x04
+#define PFFS_FILENAME_TOO_LONG	0x08
+
 /* type definitions */
 
 typedef struct s_pffs {
 	/* flash specs */
 	u32 base_addr;
-	u8 sec_num;
 	u32 *sec_addr;
 	/* flash write, read and sector erase function pointers */
 	int (*fw)(u32 addr,u16 *buf,int len);
@@ -30,12 +48,26 @@ typedef struct s_pffs {
 	int (*fe)(u32 addr);
 	/* pffs internal variables */
 	u8 state;
-	u32 data_ptr;
-	u32 index_ptr;
-	u8 sec_num_data[2];
-	u8 sec_num_index[2];
+	u32 data_ptr;			// pointer where new data goes
+	u32 index_ptr[3];		// 0: start, 1: new, 2: current
+	u8 sec_num_data[2];		// data start/end sectors
+	u8 sec_num_index[2];		// 2 index sectors
 } t_pffs;
 
+typedef struct s_pffs_fd {
+	u32 daddr;
+	u32 iaddr;
+	char file[PFFS_MAX_FILENAME_SIZE+PFFS_MAX_FILENAME_SIZE];
+	u8 fn_size;
+	u8 mode;
+	t_pffs *pffs;
+} t_pffs_fd;
+
 /* function prototypes */
+int pffs_open(t_pffs *pffs,char *file,u8 mode);
+int pffs_write(t_pffs *pffs,int fd,u8 *buf,int len);
+int pffs_read(t_pffs *pffs,int fd,u8 *buf,int len);
+int pffs_close(t_pffs *pffs,int fd);
+int pffs_unlink(t_pffs *pffs,char *file);
 
 #endif