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path: root/include/rfid/rfid_protocol.h
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#ifndef _RFID_PROTOCOL_H
#define _RFID_PROTOCOL_H

#include <rfid/rfid_layer2.h>

struct rfid_protocol_handle;

#include <rfid/rfid_protocol_tcl.h>
#include <rfid/rfid_protocol_mifare_ul.h>

struct rfid_protocol {
	struct rfid_protocol *next;
	unsigned int id;
	char *name;
	struct {
		struct rfid_protocol_handle *(*init)(struct rfid_layer2_handle *l2h);
		int (*open)(struct rfid_protocol_handle *ph);
		int (*close)(struct rfid_protocol_handle *ph);
		int (*fini)(struct rfid_protocol_handle *ph);
		/* transcieve for session based transport protocols */
		int (*transcieve)(struct rfid_protocol_handle *ph,
				  const unsigned char *tx_buf,
				  unsigned int tx_len,
				  unsigned char *rx_buf,
				  unsigned int *rx_len,
				  unsigned int timeout,
				  unsigned int flags);
		/* read/write for synchronous memory cards */
		int (*read)(struct rfid_protocol_handle *ph,
			    unsigned int page,
			    unsigned char *rx_data,
			    unsigned int *rx_len);
		int (*write)(struct rfid_protocol_handle *ph,
			     unsigned int page,
			     unsigned char *tx_data,
			     unsigned int tx_len);
	} fn;
};

struct rfid_protocol_handle {
	struct rfid_layer2_handle *l2h;
	struct rfid_protocol *proto;
	union {
		struct tcl_handle tcl;
	} priv;				/* priv has to be last, since
					 * it could contain additional
					 * private data over the end of
					 * sizeof(priv). */
};

struct rfid_protocol_handle *
rfid_protocol_init(struct rfid_layer2_handle *l2h, unsigned int id);
int rfid_protocol_open(struct rfid_protocol_handle *ph);
int rfid_protocol_transcieve(struct rfid_protocol_handle *ph,
			     const unsigned char *tx_buf, unsigned int tx_len,
			     unsigned char *rx_buf, unsigned int *rx_len,
			     unsigned int timeout, unsigned int flags);
int
rfid_protocol_read(struct rfid_protocol_handle *ph,
	 	   unsigned int page,
		   unsigned char *rx_data,
		   unsigned int *rx_len);

int
rfid_protocol_write(struct rfid_protocol_handle *ph,
	 	   unsigned int page,
		   unsigned char *tx_data,
		   unsigned int tx_len);

int rfid_protocol_fini(struct rfid_protocol_handle *ph);
int rfid_protocol_close(struct rfid_protocol_handle *ph);

int rfid_protocol_register(struct rfid_protocol *p);

enum rfid_protocol_id {
	RFID_PROTOCOL_UNKNOWN,
	RFID_PROTOCOL_TCL,
	RFID_PROTOCOL_MIFARE_UL,
	RFID_PROTOCOL_MIFARE_CLASSIC,
};
#endif
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