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| author | Alan Stern <stern@rowland.harvard.edu> | 2006-05-19 16:52:35 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-06-21 15:04:12 -0700 |
| commit | c8155cc5d839838f8425dbea568fc537337176a7 (patch) | |
| tree | fc50ffe774fa59a1a3d18e8543bb7e04d1e80726 /drivers/usb/host/uhci-hcd.h | |
| parent | caf3827a65af476c71eaeb79636869a4ab128d48 (diff) | |
| download | linux-c8155cc5d839838f8425dbea568fc537337176a7.tar.bz2 | |
[PATCH] UHCI: remove ISO TDs as they are used
This patch (as690) does the same thing for ISO TDs as as680 did for
non-ISO TDs: free them as they are used rather than all at once when an
URB is complete. At the same time it fixes a minor buglet (I'm not
aware of it ever affecting anyone): An ISO TD should be retired when its
frame is over, regardless of whether or not the hardware has marked it
inactive.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/uhci-hcd.h')
| -rw-r--r-- | drivers/usb/host/uhci-hcd.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h index eaac6ddf03a0..469b4268b850 100644 --- a/drivers/usb/host/uhci-hcd.h +++ b/drivers/usb/host/uhci-hcd.h @@ -128,8 +128,6 @@ struct uhci_qh { __le32 element; /* Queue element (TD) pointer */ /* Software fields */ - dma_addr_t dma_handle; - struct list_head node; /* Node in the list of QHs */ struct usb_host_endpoint *hep; /* Endpoint information */ struct usb_device *udev; @@ -138,13 +136,19 @@ struct uhci_qh { struct uhci_td *dummy_td; /* Dummy TD to end the queue */ struct uhci_td *post_td; /* Last TD completed */ + struct usb_iso_packet_descriptor *iso_packet_desc; + /* Next urb->iso_frame_desc entry */ unsigned long advance_jiffies; /* Time of last queue advance */ unsigned int unlink_frame; /* When the QH was unlinked */ unsigned int period; /* For Interrupt and Isochronous QHs */ + unsigned int iso_frame; /* Frame # for iso_packet_desc */ + int iso_status; /* Status for Isochronous URBs */ int state; /* QH_STATE_xxx; see above */ int type; /* Queue type (control, bulk, etc) */ + dma_addr_t dma_handle; + unsigned int initial_toggle:1; /* Endpoint's current toggle value */ unsigned int needs_fixup:1; /* Must fix the TD toggle values */ unsigned int is_stopped:1; /* Queue was stopped by error/unlink */ @@ -386,6 +390,8 @@ struct uhci_hcd { unsigned int frame_number; /* As of last check */ unsigned int is_stopped; #define UHCI_IS_STOPPED 9999 /* Larger than a frame # */ + unsigned int last_iso_frame; /* Frame of last scan */ + unsigned int cur_iso_frame; /* Frame for current scan */ unsigned int scan_in_progress:1; /* Schedule scan is running */ unsigned int need_rescan:1; /* Redo the schedule scan */ |