diff options
Diffstat (limited to 'drivers/ieee1394/iso.h')
| -rw-r--r-- | drivers/ieee1394/iso.h | 35 |
1 files changed, 2 insertions, 33 deletions
diff --git a/drivers/ieee1394/iso.h b/drivers/ieee1394/iso.h index 1210a97e8685..b94e55e6eaa5 100644 --- a/drivers/ieee1394/iso.h +++ b/drivers/ieee1394/iso.h @@ -150,8 +150,6 @@ struct hpsb_iso { /* functions available to high-level drivers (e.g. raw1394) */ -/* allocate the buffer and DMA context */ - struct hpsb_iso* hpsb_iso_xmit_init(struct hpsb_host *host, unsigned int data_buf_size, unsigned int buf_packets, @@ -159,8 +157,6 @@ struct hpsb_iso* hpsb_iso_xmit_init(struct hpsb_host *host, int speed, int irq_interval, void (*callback)(struct hpsb_iso*)); - -/* note: if channel = -1, multi-channel receive is enabled */ struct hpsb_iso* hpsb_iso_recv_init(struct hpsb_host *host, unsigned int data_buf_size, unsigned int buf_packets, @@ -168,56 +164,29 @@ struct hpsb_iso* hpsb_iso_recv_init(struct hpsb_host *host, int dma_mode, int irq_interval, void (*callback)(struct hpsb_iso*)); - -/* multi-channel only */ int hpsb_iso_recv_listen_channel(struct hpsb_iso *iso, unsigned char channel); int hpsb_iso_recv_unlisten_channel(struct hpsb_iso *iso, unsigned char channel); int hpsb_iso_recv_set_channel_mask(struct hpsb_iso *iso, u64 mask); - -/* start/stop DMA */ int hpsb_iso_xmit_start(struct hpsb_iso *iso, int start_on_cycle, int prebuffer); int hpsb_iso_recv_start(struct hpsb_iso *iso, int start_on_cycle, int tag_mask, int sync); void hpsb_iso_stop(struct hpsb_iso *iso); - -/* deallocate buffer and DMA context */ void hpsb_iso_shutdown(struct hpsb_iso *iso); - -/* queue a packet for transmission. - * 'offset' is relative to the beginning of the DMA buffer, where the packet's - * data payload should already have been placed. */ int hpsb_iso_xmit_queue_packet(struct hpsb_iso *iso, u32 offset, u16 len, u8 tag, u8 sy); - -/* wait until all queued packets have been transmitted to the bus */ int hpsb_iso_xmit_sync(struct hpsb_iso *iso); - -/* N packets have been read out of the buffer, re-use the buffer space */ -int hpsb_iso_recv_release_packets(struct hpsb_iso *recv, - unsigned int n_packets); - -/* check for arrival of new packets immediately (even if irq_interval - * has not yet been reached) */ +int hpsb_iso_recv_release_packets(struct hpsb_iso *recv, + unsigned int n_packets); int hpsb_iso_recv_flush(struct hpsb_iso *iso); - -/* returns # of packets ready to send or receive */ int hpsb_iso_n_ready(struct hpsb_iso *iso); /* the following are callbacks available to low-level drivers */ -/* call after a packet has been transmitted to the bus (interrupt context is OK) - * 'cycle' is the _exact_ cycle the packet was sent on - * 'error' should be non-zero if some sort of error occurred when sending the - * packet */ 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 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); #endif /* IEEE1394_ISO_H */ |