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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 00:20:36 +0200 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 00:20:36 +0200 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/ieee1394/ieee1394_transactions.h | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/ieee1394/ieee1394_transactions.h')
-rw-r--r-- | drivers/ieee1394/ieee1394_transactions.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/ieee1394/ieee1394_transactions.h b/drivers/ieee1394/ieee1394_transactions.h new file mode 100644 index 000000000000..526a43ceb496 --- /dev/null +++ b/drivers/ieee1394/ieee1394_transactions.h @@ -0,0 +1,64 @@ +#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); +int hpsb_lock(struct hpsb_host *host, nodeid_t node, unsigned int generation, + u64 addr, int extcode, quadlet_t *data, quadlet_t arg); +int hpsb_lock64(struct hpsb_host *host, nodeid_t node, unsigned int generation, + u64 addr, int extcode, octlet_t *data, octlet_t arg); +int hpsb_send_gasp(struct hpsb_host *host, int channel, unsigned int generation, + quadlet_t *buffer, size_t length, u32 specifier_id, + unsigned int version); + +#endif /* _IEEE1394_TRANSACTIONS_H */ |