#ifndef _IEEE1394_TRANSACTIONS_H #define _IEEE1394_TRANSACTIONS_H #include <linux/types.h> #include "ieee1394_types.h" struct hpsb_packet; struct hpsb_host; 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 and write 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); #ifdef HPSB_DEBUG_TLABELS extern spinlock_t hpsb_tlabel_lock; #endif #endif /* _IEEE1394_TRANSACTIONS_H */