mirror of
https://github.com/torvalds/linux.git
synced 2024-11-07 12:41:55 +00:00
58 lines
2.4 KiB
C
58 lines
2.4 KiB
C
|
#ifndef _IEEE1394_TRANSACTIONS_H
|
||
|
|
#define _IEEE1394_TRANSACTIONS_H
|
||
|
|
|
||
|
|
#include "ieee1394_core.h"
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Get and free transaction labels.
|
||
|
|
*/
|
||
|
|
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, write and lock 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 */
|