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| author | Alan Stern <stern@rowland.harvard.edu> | 2012-07-11 17:21:32 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-17 01:50:13 +0200 |
| commit | 4c53de72109759c931744734ca75f9cecb3baef1 (patch) | |
| tree | 0f464052baf26967994146bf3b3716b3dd6e6d35 /drivers/usb/host/ehci.h | |
| parent | USB: EHCI: don't refcount QHs (diff) | |
| download | linux-4c53de72109759c931744734ca75f9cecb3baef1.tar.xz linux-4c53de72109759c931744734ca75f9cecb3baef1.zip | |
USB: EHCI: add symbolic constants for QHs
This patch (as1568) introduces symbolic constants for some of the
less-frequently used bitfields in the QH structure. This makes the
code a little easier to read and understand.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/ehci.h')
| -rw-r--r-- | drivers/usb/host/ehci.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index f7a59f5d70c6..195449db1b18 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -324,7 +324,13 @@ union ehci_shadow { struct ehci_qh_hw { __hc32 hw_next; /* see EHCI 3.6.1 */ __hc32 hw_info1; /* see EHCI 3.6.2 */ -#define QH_HEAD 0x00008000 +#define QH_CONTROL_EP (1 << 27) /* FS/LS control endpoint */ +#define QH_HEAD (1 << 15) /* Head of async reclamation list */ +#define QH_TOGGLE_CTL (1 << 14) /* Data toggle control */ +#define QH_HIGH_SPEED (2 << 12) /* Endpoint speed */ +#define QH_LOW_SPEED (1 << 12) +#define QH_FULL_SPEED (0 << 12) +#define QH_INACTIVATE (1 << 7) /* Inactivate on next transaction */ __hc32 hw_info2; /* see EHCI 3.6.2 */ #define QH_SMASK 0x000000ff #define QH_CMASK 0x0000ff00 |