[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / ieee1394 / ieee1394_transactions.h

#ifndef _IEEE1394_TRANSACTIONS_H
#define _IEEE1394_TRANSACTIONS_H

#include <linux/types.h>

#include "ieee1394_types.h"

struct hpsb_packet;
struct hpsb_host;

int hpsb_get_tlabel(struct hpsb_packet *packet);
void hpsb_free_tlabel(struct hpsb_packet *packet);
struct hpsb_packet *hpsb_make_readpacket(struct hpsb_host *host, nodeid_t node,
					 u64 addr, size_t length);
struct hpsb_packet *hpsb_make_lockpacket(struct hpsb_host *host, nodeid_t node,
					 u64 addr, int extcode, quadlet_t *data,
					 quadlet_t arg);
struct hpsb_packet *hpsb_make_lock64packet(struct hpsb_host *host,
					   nodeid_t node, u64 addr, int extcode,
					   octlet_t *data, octlet_t arg);
struct hpsb_packet *hpsb_make_phypacket(struct hpsb_host *host, quadlet_t data);
struct hpsb_packet *hpsb_make_isopacket(struct hpsb_host *host, int length,
					int channel, int tag, int sync);
struct hpsb_packet *hpsb_make_writepacket(struct hpsb_host *host,
					  nodeid_t node, u64 addr,
					  quadlet_t *buffer, size_t length);
struct hpsb_packet *hpsb_make_streampacket(struct hpsb_host *host, u8 *buffer,
                                           int length, int channel, int tag,
					   int sync);

/*
 * hpsb_packet_success - Make sense of the ack and reply codes and
 * return more convenient error codes:
 * 0           success
 * -EBUSY      node is busy, try again
 * -EAGAIN     error which can probably resolved by retry
 * -EREMOTEIO  node suffers from an internal error
 * -EACCES     this transaction is not allowed on requested address
 * -EINVAL     invalid address at node
 */
int hpsb_packet_success(struct hpsb_packet *packet);

/*
 * The generic read and write functions.  All recognize the local node ID
 * and act accordingly.  Read and write automatically use quadlet commands if
 * length == 4 and and block commands otherwise (however, they do not yet
 * support lengths that are not a multiple of 4).  You must explicitly specifiy
 * the generation for which the node ID is valid, to avoid sending packets to
 * the wrong nodes when we race with a bus reset.
 */
int hpsb_read(struct hpsb_host *host, nodeid_t node, unsigned int generation,
	      u64 addr, quadlet_t *buffer, size_t length);
int hpsb_write(struct hpsb_host *host, nodeid_t node, unsigned int generation,
	       u64 addr, quadlet_t *buffer, size_t length);

#endif /* _IEEE1394_TRANSACTIONS_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _IEEE1394_TRANSACTIONS_H
	2	#define _IEEE1394_TRANSACTIONS_H
	3
de4394f1 SR	4	#include <linux/types.h>
	5
	6	#include "ieee1394_types.h"
	7
	8	struct hpsb_packet;
	9	struct hpsb_host;
1da177e4	10
1da177e4 LT	11	int hpsb_get_tlabel(struct hpsb_packet *packet);
1da177e4 LT	12	void hpsb_free_tlabel(struct hpsb_packet *packet);
1da177e4 LT	13	struct hpsb_packet hpsb_make_readpacket(struct hpsb_host host, nodeid_t node,
	14	u64 addr, size_t length);
	15	struct hpsb_packet hpsb_make_lockpacket(struct hpsb_host host, nodeid_t node,
e1d118f1	16	u64 addr, int extcode, quadlet_t *data,
1da177e4	17	quadlet_t arg);
e1d118f1 SR	18	struct hpsb_packet hpsb_make_lock64packet(struct hpsb_host host,
	19	nodeid_t node, u64 addr, int extcode,
	20	octlet_t *data, octlet_t arg);
	21	struct hpsb_packet hpsb_make_phypacket(struct hpsb_host host, quadlet_t data);
	22	struct hpsb_packet hpsb_make_isopacket(struct hpsb_host host, int length,
	23	int channel, int tag, int sync);
	24	struct hpsb_packet hpsb_make_writepacket(struct hpsb_host host,
	25	nodeid_t node, u64 addr,
	26	quadlet_t *buffer, size_t length);
1da177e4	27	struct hpsb_packet hpsb_make_streampacket(struct hpsb_host host, u8 *buffer,
e1d118f1 SR	28	int length, int channel, int tag,
e1d118f1 SR	29	int sync);
1da177e4 LT	30
	31	/*
	32	* hpsb_packet_success - Make sense of the ack and reply codes and
	33	* return more convenient error codes:
	34	* 0 success
	35	* -EBUSY node is busy, try again
	36	* -EAGAIN error which can probably resolved by retry
	37	* -EREMOTEIO node suffers from an internal error
	38	* -EACCES this transaction is not allowed on requested address
	39	* -EINVAL invalid address at node
	40	*/
	41	int hpsb_packet_success(struct hpsb_packet *packet);
	42
1da177e4	43	/*
e1d118f1	44	* The generic read and write functions. All recognize the local node ID
1da177e4 LT	45	* and act accordingly. Read and write automatically use quadlet commands if
	46	* length == 4 and and block commands otherwise (however, they do not yet
	47	* support lengths that are not a multiple of 4). You must explicitly specifiy
	48	* the generation for which the node ID is valid, to avoid sending packets to
	49	* the wrong nodes when we race with a bus reset.
	50	*/
	51	int hpsb_read(struct hpsb_host *host, nodeid_t node, unsigned int generation,
	52	u64 addr, quadlet_t *buffer, size_t length);
	53	int hpsb_write(struct hpsb_host *host, nodeid_t node, unsigned int generation,
	54	u64 addr, quadlet_t *buffer, size_t length);
1da177e4 LT	55
1da177e4 LT	56	#endif /* _IEEE1394_TRANSACTIONS_H */