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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1#ifndef _IEEE1394_TRANSACTIONS_H
2#define _IEEE1394_TRANSACTIONS_H
3
4#include <linux/types.h>
5
6#include "ieee1394_types.h"
7
8struct hpsb_packet;
9struct hpsb_host;
10
11int hpsb_get_tlabel(struct hpsb_packet *packet);
12void hpsb_free_tlabel(struct hpsb_packet *packet);
13struct hpsb_packet *hpsb_make_readpacket(struct hpsb_host *host, nodeid_t node,
14 u64 addr, size_t length);
15struct hpsb_packet *hpsb_make_lockpacket(struct hpsb_host *host, nodeid_t node,
16 u64 addr, int extcode, quadlet_t *data,
17 quadlet_t arg);
18struct hpsb_packet *hpsb_make_lock64packet(struct hpsb_host *host,
19 nodeid_t node, u64 addr, int extcode,
20 octlet_t *data, octlet_t arg);
21struct hpsb_packet *hpsb_make_phypacket(struct hpsb_host *host, quadlet_t data);
22struct hpsb_packet *hpsb_make_isopacket(struct hpsb_host *host, int length,
23 int channel, int tag, int sync);
24struct hpsb_packet *hpsb_make_writepacket(struct hpsb_host *host,
25 nodeid_t node, u64 addr,
26 quadlet_t *buffer, size_t length);
27struct hpsb_packet *hpsb_make_streampacket(struct hpsb_host *host, u8 *buffer,
28 int length, int channel, int tag,
29 int sync);
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 */
41int hpsb_packet_success(struct hpsb_packet *packet);
42
43/*
44 * The generic read and write functions. All recognize the local node ID
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 */
51int hpsb_read(struct hpsb_host *host, nodeid_t node, unsigned int generation,
52 u64 addr, quadlet_t *buffer, size_t length);
53int hpsb_write(struct hpsb_host *host, nodeid_t node, unsigned int generation,
54 u64 addr, quadlet_t *buffer, size_t length);
55
56#ifdef HPSB_DEBUG_TLABELS
57extern spinlock_t hpsb_tlabel_lock;
58#endif
59
60#endif /* _IEEE1394_TRANSACTIONS_H */