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| author | Alan Stern <stern@rowland.harvard.edu> | 2007-02-19 15:51:51 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-02-23 15:03:45 -0800 |
| commit | 28b9325e6ae45ffb5e99fedcafe00f25fcaacf06 (patch) | |
| tree | 91391a8e2d11acc50adc5b7c631b2695bee9e453 /drivers/usb/host/uhci-hcd.c | |
| parent | d0374f4f9c35cdfbee0ade72d06732613b4e6628 (diff) | |
| download | linux-28b9325e6ae45ffb5e99fedcafe00f25fcaacf06.tar.gz linux-28b9325e6ae45ffb5e99fedcafe00f25fcaacf06.tar.bz2 linux-28b9325e6ae45ffb5e99fedcafe00f25fcaacf06.zip | |
UHCI: Add macros for computing DMA values
This patch (as855) adds some convenience macros to uhci-hcd, to help
simplify the code for computing hardware DMA pointers.
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.c')
| -rw-r--r-- | drivers/usb/host/uhci-hcd.c | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c index ded4df30a631..1f0833ab294a 100644 --- a/drivers/usb/host/uhci-hcd.c +++ b/drivers/usb/host/uhci-hcd.c @@ -116,7 +116,7 @@ static __le32 uhci_frame_skel_link(struct uhci_hcd *uhci, int frame) skelnum = 8 - (int) __ffs(frame | UHCI_NUMFRAMES); if (skelnum <= 1) skelnum = 9; - return UHCI_PTR_QH | cpu_to_le32(uhci->skelqh[skelnum]->dma_handle); + return LINK_TO_QH(uhci->skelqh[skelnum]); } #include "uhci-debug.c" @@ -635,25 +635,21 @@ static int uhci_start(struct usb_hcd *hcd) uhci->skel_int16_qh->link = uhci->skel_int8_qh->link = uhci->skel_int4_qh->link = - uhci->skel_int2_qh->link = UHCI_PTR_QH | - cpu_to_le32(uhci->skel_int1_qh->dma_handle); - - uhci->skel_int1_qh->link = UHCI_PTR_QH | - cpu_to_le32(uhci->skel_ls_control_qh->dma_handle); - uhci->skel_ls_control_qh->link = UHCI_PTR_QH | - cpu_to_le32(uhci->skel_fs_control_qh->dma_handle); - uhci->skel_fs_control_qh->link = UHCI_PTR_QH | - cpu_to_le32(uhci->skel_bulk_qh->dma_handle); - uhci->skel_bulk_qh->link = UHCI_PTR_QH | - cpu_to_le32(uhci->skel_term_qh->dma_handle); + uhci->skel_int2_qh->link = LINK_TO_QH( + uhci->skel_int1_qh); + + uhci->skel_int1_qh->link = LINK_TO_QH(uhci->skel_ls_control_qh); + uhci->skel_ls_control_qh->link = LINK_TO_QH(uhci->skel_fs_control_qh); + uhci->skel_fs_control_qh->link = LINK_TO_QH(uhci->skel_bulk_qh); + uhci->skel_bulk_qh->link = LINK_TO_QH(uhci->skel_term_qh); /* This dummy TD is to work around a bug in Intel PIIX controllers */ uhci_fill_td(uhci->term_td, 0, uhci_explen(0) | (0x7f << TD_TOKEN_DEVADDR_SHIFT) | USB_PID_IN, 0); - uhci->term_td->link = cpu_to_le32(uhci->term_td->dma_handle); + uhci->term_td->link = LINK_TO_TD(uhci->term_td); uhci->skel_term_qh->link = UHCI_PTR_TERM; - uhci->skel_term_qh->element = cpu_to_le32(uhci->term_td->dma_handle); + uhci->skel_term_qh->element = LINK_TO_TD(uhci->term_td); /* * Fill the frame list: make all entries point to the proper |