1 #ifndef _IEEE1394_TRANSACTIONS_H
2 #define _IEEE1394_TRANSACTIONS_H
4 #include <linux/types.h>
6 #include "ieee1394_types.h"
11 int hpsb_get_tlabel(struct hpsb_packet *packet);
12 void hpsb_free_tlabel(struct hpsb_packet *packet);
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,
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);
27 struct hpsb_packet *hpsb_make_streampacket(struct hpsb_host *host, u8 *buffer,
28 int length, int channel, int tag,
32 * hpsb_packet_success - Make sense of the ack and reply codes and
33 * return more convenient error codes:
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
41 int hpsb_packet_success(struct hpsb_packet *packet);
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.
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);
56 #ifdef HPSB_DEBUG_TLABELS
57 extern spinlock_t hpsb_tlabel_lock;
60 #endif /* _IEEE1394_TRANSACTIONS_H */