1 files changed, 82 insertions, 0 deletions
diff --git a/os/manga/flashif.h b/os/manga/flashif.h
new file mode 100644
index 00000000..14b6a9e1
--- /dev/null
+++ b/os/manga/flashif.h
@@ -0,0 +1,82 @@
+typedef struct Flash Flash;
+
+/*
+ * structure defining a flash memory card
+ */
+struct Flash {
+	QLock;	/* interlock on flash operations */
+	Flash*	next;
+
+	/* the following are filled in by devflash before Flash.reset called */
+	char*	name;
+	void*	addr;
+	ulong	size;
+	void *	archdata;
+	int	(*reset)(Flash*);
+
+	/* the following are filled in by the reset routine */
+	int	(*eraseall)(Flash*);
+	int	(*erasezone)(Flash*, int);
+	int	(*read)(Flash*, ulong, void*, long);	/* reads of correct width and alignment */
+	int	(*write)(Flash*, ulong, void*, long);	/* writes of correct width and alignment */
+	int	(*suspend)(Flash*);
+	int	(*resume)(Flash*);
+	int	(*attach)(Flash*);
+
+	uchar	id;	/* flash manufacturer ID */
+	uchar	devid;	/* flash device ID */
+	int	width;	/* bytes per flash line */
+	int	erasesize;	/* size of erasable unit (accounting for width) */
+	void*	data;		/* flash type routines' private storage, or nil */
+	ulong	unusable;	/* bit mask of unusable sections */
+};
+
+/*
+ * called by link routine of driver for specific flash type: arguments are
+ * conventional name for card type/model, and card driver's reset routine.
+ */
+void	addflashcard(char*, int (*)(Flash*));
+
+/*
+ * called by devflash.c:/^flashreset; if flash exists,
+ * sets type, address, and size in bytes of flash
+ * and returns 0; returns -1 if flash doesn't exist
+ */
+int	archflashreset(int instance, char*, int, void**, long*, void **archdata);
+
+int	archflash12v(int);
+void	archflashwp(void *archdata, int);
+
+/*
+ * Architecture specific routines for managing nand devices
+ */
+
+/*
+ * do any device spcific initialisation
+ */
+void archnand_init(void *archdata);
+
+/*
+ * if claim is 1, claim device exclusively, and enable it (power it up)
+ * if claim is 0, release, and disable it (power it down)
+ * claiming may be as simple as a qlock per device
+ */
+void archnand_claim(void *archdata, int claim);
+
+/*
+ * set command latch enable (CLE) and address latch enable (ALE)
+ * appropriately
+ */
+void archnand_setCLEandALE(void *archdata, int cle, int ale);
+
+/*
+ * write a sequence of bytes to the device
+ */
+void archnand_write(void *archdata, void *buf, int len);
+
+/*
+ * read a sequence of bytes from the device
+ * if buf is 0, throw away the data
+ */
+void archnand_read(void *archdata, void *buf, int len);
+