diff options
Diffstat (limited to 'drivers/ieee1394/iso.h')
| -rw-r--r-- | drivers/ieee1394/iso.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/ieee1394/iso.h b/drivers/ieee1394/iso.h index fb654d9639a..3efc60b33a8 100644 --- a/drivers/ieee1394/iso.h +++ b/drivers/ieee1394/iso.h @@ -47,6 +47,14 @@ struct hpsb_iso_packet_info { /* 2-bit 'tag' and 4-bit 'sy' fields of the isochronous header */ __u8 tag; __u8 sy; + + /* + * length in bytes of the packet including header/trailer. + * MUST be at structure end, since the first part of this structure is also + * defined in raw1394.h (i.e. struct raw1394_iso_packet_info), is copied to + * userspace and is accessed there through libraw1394. + */ + __u16 total_len; }; enum hpsb_iso_type { HPSB_ISO_RECV = 0, HPSB_ISO_XMIT = 1 }; @@ -111,6 +119,9 @@ struct hpsb_iso { /* how many times the buffer has overflowed or underflowed */ atomic_t overflows; + /* Current number of bytes lost in discarded packets */ + int bytes_discarded; + /* private flags to track initialization progress */ #define HPSB_ISO_DRIVER_INIT (1<<0) #define HPSB_ISO_DRIVER_STARTED (1<<1) @@ -193,7 +204,7 @@ void hpsb_iso_packet_sent(struct hpsb_iso *iso, int cycle, int error); /* call after a packet has been received (interrupt context OK) */ void hpsb_iso_packet_received(struct hpsb_iso *iso, u32 offset, u16 len, - u16 cycle, u8 channel, u8 tag, u8 sy); + u16 total_len, u16 cycle, u8 channel, u8 tag, u8 sy); /* call to wake waiting processes after buffer space has opened up. */ void hpsb_iso_wake(struct hpsb_iso *iso); |