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1da177e4 LT |
1 | #ifndef _IEEE1394_TRANSACTIONS_H |
2 | #define _IEEE1394_TRANSACTIONS_H | |
3 | ||
4 | #include "ieee1394_core.h" | |
5 | ||
6 | ||
7 | /* | |
8 | * Get and free transaction labels. | |
9 | */ | |
10 | int hpsb_get_tlabel(struct hpsb_packet *packet); | |
11 | void hpsb_free_tlabel(struct hpsb_packet *packet); | |
12 | ||
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, | |
16 | u64 addr, int extcode, quadlet_t *data, | |
17 | quadlet_t arg); | |
18 | struct hpsb_packet *hpsb_make_lock64packet(struct hpsb_host *host, nodeid_t node, | |
19 | u64 addr, int extcode, octlet_t *data, | |
20 | octlet_t arg); | |
21 | struct hpsb_packet *hpsb_make_phypacket(struct hpsb_host *host, | |
22 | quadlet_t data) ; | |
23 | struct hpsb_packet *hpsb_make_isopacket(struct hpsb_host *host, | |
24 | int length, int channel, | |
25 | int tag, int sync); | |
26 | struct hpsb_packet *hpsb_make_writepacket (struct hpsb_host *host, nodeid_t node, | |
27 | u64 addr, quadlet_t *buffer, size_t length); | |
28 | struct hpsb_packet *hpsb_make_streampacket(struct hpsb_host *host, u8 *buffer, | |
29 | int length, int channel, int tag, 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 | */ | |
41 | int hpsb_packet_success(struct hpsb_packet *packet); | |
42 | ||
43 | ||
44 | /* | |
45 | * The generic read, write and lock functions. All recognize the local node ID | |
46 | * and act accordingly. Read and write automatically use quadlet commands if | |
47 | * length == 4 and and block commands otherwise (however, they do not yet | |
48 | * support lengths that are not a multiple of 4). You must explicitly specifiy | |
49 | * the generation for which the node ID is valid, to avoid sending packets to | |
50 | * the wrong nodes when we race with a bus reset. | |
51 | */ | |
52 | int hpsb_read(struct hpsb_host *host, nodeid_t node, unsigned int generation, | |
53 | u64 addr, quadlet_t *buffer, size_t length); | |
54 | int hpsb_write(struct hpsb_host *host, nodeid_t node, unsigned int generation, | |
55 | u64 addr, quadlet_t *buffer, size_t length); | |
1da177e4 LT |
56 | |
57 | #endif /* _IEEE1394_TRANSACTIONS_H */ |