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65b8e5cbdd
linux/drivers/usb/host
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Alan Stern 65b8e5cbdd USB: EHCI: improve full-speed isochronous scheduling routine 
This patch (as1555) improves the code ehci-hcd uses while checking the
periodic schedule for isochronous transfers to full-speed devices.  In
addition to making sure that a new transfer does not violate the
restrictions on the high-speed schedule, it also has to check the
restrictions on the full-speed part of the bus, i.e., the part beyond
the Transaction Translator (TT).

It does this by calling tt_available() (or tt_no_collision() if
CONFIG_USB_EHCI_TT_NEWSCHED isn't enabled).  However it calls that
routine on each pass through a loop over the frames being modified,
which is an unnecessary expense because tt_available() (or
tt_no_collision) already does its own loop over frames.  It is
sufficient to do the check just once, before starting the loop.

In addition, the function calls incorrectly converted the transfer's
period from microframes to frames by doing a left shift instead of a
right shift.  The patch fixes this while moving the calls.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-14 12:50:22 -07:00
..
whci Merge branch 'for-next/dwc3' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next 2011-12-12 15:19:53 -08:00
alchemy-common.c MIPS: Alchemy: Au1300 SoC support 2011-12-07 22:02:05 +00:00
bcma-hcd.c usb/bcma: Add missing #include <linux/slab.h> 2012-04-23 13:22:00 -07:00
ehci-atmel.c USB: ehci-atmel: add needed of.h header file 2012-04-04 18:35:43 +02:00
ehci-au1xxx.c usb: Remove ehci_reset call from ehci_run 2011-12-08 09:38:53 -08:00
ehci-cns3xxx.c treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
ehci-dbg.c EHCI: maintain the ehci->command value properly 2012-04-23 12:05:44 -07:00
ehci-fsl.c USB: ehci-fsl: Use usb_put_transceiver instead of put_device 2012-05-14 08:49:50 -07:00
ehci-fsl.h fsl/usb: Add controller version based ULPI and UTMI phy support 2012-04-18 13:46:42 -07:00
ehci-grlib.c treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
ehci-hcd.c usb: chipidea: add host role 2012-05-11 16:56:15 -07:00
ehci-hub.c EHCI: maintain the ehci->command value properly 2012-04-23 12:05:44 -07:00
ehci-ixp4xx.c treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
ehci-lpm.c
ehci-ls1x.c USB: Add EHCI bus glue for Loongson1x SoCs (UPDATED) 2012-01-24 15:28:02 -08:00
ehci-mem.c
ehci-msm.c usb: otg: Convert all users to pass struct usb_otg for OTG functions 2012-02-27 15:41:52 +02:00
ehci-mv.c usb: otg: Convert all users to pass struct usb_otg for OTG functions 2012-02-27 15:41:52 +02:00
ehci-mxc.c usb: otg: Convert all users to pass struct usb_otg for OTG functions 2012-02-27 15:41:52 +02:00
ehci-octeon.c usb: Remove ehci_reset call from ehci_run 2011-12-08 09:38:53 -08:00
ehci-omap.c ARM: OMAP: USB: fix warning on EHCI PHY reset path 2012-05-09 15:20:12 -07:00
ehci-orion.c ARM: Orion: Get address map from plat-orion instead of via platform_data 2011-12-13 18:46:55 -05:00
ehci-pci.c Merge 3.4-rc6 into usb-next 2012-05-07 09:03:39 -07:00
ehci-platform.c usb: Fix various typo within usb 2012-04-18 13:57:26 -07:00
ehci-pmcmsp.c treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
ehci-ppc-of.c treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
ehci-ps3.c usb: PS3 EHCI HC reset work-around 2011-12-08 09:38:53 -08:00
ehci-q.c USB: ehci-q.c: remove dbg() usage 2012-05-01 21:33:35 -07:00
ehci-s5p.c USB: ehci-s5p: add clock gating to suspend/resume 2012-04-18 13:52:36 -07:00
ehci-sched.c USB: EHCI: improve full-speed isochronous scheduling routine 2012-05-14 12:50:22 -07:00
ehci-sead3.c usb: host: mips: sead3: Fix for big endian. 2012-05-11 15:17:30 -07:00
ehci-sh.c usb: ehci-sh: Add PHY init function with platform data 2012-04-18 13:52:35 -07:00
ehci-spear.c USB: ehci: ohci: Add clk_{un}prepare() support 2012-04-18 14:33:43 -07:00
ehci-sysfs.c USB: EHCI: Allow users to override 80% max periodic bandwidth 2011-07-08 14:51:33 -07:00
ehci-tegra.c Merge 3.4-rc6 into usb-next 2012-05-07 09:03:39 -07:00
ehci-vt8500.c usb: Remove ehci_reset call from ehci_run 2011-12-08 09:38:53 -08:00
ehci-w90x900.c usb: Remove ehci_reset call from ehci_run 2011-12-08 09:38:53 -08:00
ehci-xilinx-of.c USB: EHCI: Don't use NO_IRQ in xilinx ehci driver 2012-01-16 08:23:15 +01:00
ehci-xls.c Merge 3.2-rc3 into usb-linus 2011-11-26 19:46:48 -08:00
ehci.h EHCI: keep track of ports being resumed and indicate in hub_status_data 2012-04-09 15:43:21 -07:00
fhci-dbg.c
fhci-hcd.c usb: convert drivers/usb/* to use module_platform_driver() 2011-11-28 06:48:32 +09:00
fhci-hub.c
fhci-mem.c
fhci-q.c
fhci-sched.c QE/FHCI: fixed the CONTROL bug 2011-10-18 13:51:34 -07:00
fhci-tds.c usb: Fix various typo within usb 2012-04-18 13:57:26 -07:00
fhci.h
fsl-mph-dr-of.c fsl/usb: Add controller version based ULPI and UTMI phy support 2012-04-18 13:46:42 -07:00
hwa-hc.c Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb 2012-01-09 12:09:47 -08:00
imx21-dbg.c usb: Fix typo in imx21-dbg.c 2012-02-13 14:32:34 -08:00
imx21-hcd.c Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb 2012-01-09 12:09:47 -08:00
imx21-hcd.h
isp116x-hcd.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
isp116x.h
isp1362-hcd.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
isp1362.h
isp1760-hcd.c isp1760-hcd: fix possible memory leak if urb could not be enqueued 2012-04-18 13:51:19 -07:00
isp1760-hcd.h usb/isp1760: Allow to optionally trigger low-level chip reset via GPIOLIB. 2011-10-19 13:29:06 -07:00
isp1760-if.c isp1760-if: make module unloads correctly 2012-04-18 13:50:44 -07:00
Kconfig USB: ohci-nxp: Use isp1301 driver 2012-05-01 13:36:18 -04:00
Makefile USB: Add driver for the ssb bus 2012-04-18 13:43:30 -07:00
octeon2-common.c
ohci-at91.c USB: ohci-at91: add a reset function to fix race condition 2012-05-09 15:22:27 -07:00
ohci-au1xxx.c usb: [MIPS] fix unresolved err() reference in host/ohci-au1xxx.c 2012-05-01 18:36:09 -04:00
ohci-cns3xxx.c USB: ohci-cns3xxx.c: remove err() usage 2012-04-27 11:24:40 -07:00
ohci-da8xx.c ohci-da8xx: set MODULE_ALIAS to allow autoloading 2012-05-08 09:26:10 -07:00
ohci-dbg.c USB: ohci-dbg.c: remove dbg() usage 2012-05-01 21:33:37 -07:00
ohci-ep93xx.c USB: ohci-ep93xx.c: remove dbg() usage 2012-05-01 21:33:38 -07:00
ohci-exynos.c USB: ohci-exynos.c: remove err() usage 2012-04-27 11:24:41 -07:00
ohci-hcd.c USB: OHCI: remove old SSB OHCI driver 2012-04-18 13:43:30 -07:00
ohci-hub.c OHCI: remove uses of hcd->state 2011-11-18 10:51:00 -08:00
ohci-jz4740.c
ohci-mem.c
ohci-nxp.c USB: ohci-nxp: Use isp1301 driver 2012-05-01 13:36:18 -04:00
ohci-octeon.c USB: irq: Remove IRQF_DISABLED 2011-09-18 01:39:36 -07:00
ohci-omap3.c ARM: OMAP: USBHOST: Replace usbhs core driver APIs by Runtime pm APIs 2011-12-16 04:29:57 -07:00
ohci-omap.c USB: ohci-omap: Use usb_put_transceiver instead of put_device 2012-05-14 08:49:50 -07:00
ohci-pci.c usb: add support for STA2X11 host driver 2012-01-24 14:15:37 -08:00
ohci-platform.c usb: Fix various typo within usb 2012-04-18 13:57:26 -07:00
ohci-pnx8550.c usb: [MIPS] fix unresolved err() reference in host/ohci-pnx8550.c 2012-05-01 18:36:09 -04:00
ohci-ppc-of.c USB: ohci-ppc-of.c: remove err() usage 2012-04-27 11:24:42 -07:00
ohci-ppc-soc.c USB: ohci-ppc-soc.c: remove err() usage 2012-04-27 11:24:42 -07:00
ohci-ps3.c USB: ohci-ps3.c: remove err() usage 2012-04-27 11:24:43 -07:00
ohci-pxa27x.c usb: [ARM] fix unresolved err() reference in host/ohci-pxa27x.c 2012-05-01 18:36:09 -04:00
ohci-q.c OHCI: remove uses of hcd->state 2011-11-18 10:51:00 -08:00
ohci-s3c2410.c USB: ohci-s3c2410.c: remove err() usage 2012-04-27 11:24:43 -07:00
ohci-sa1111.c USB: ohci-sa1111.c: remove dbg() usage 2012-05-01 21:33:39 -07:00
ohci-sh.c USB: ohci-sh.c: remove err() usage 2012-04-27 11:24:44 -07:00
ohci-sm501.c OHCI: remove uses of hcd->state 2011-11-18 10:51:00 -08:00
ohci-spear.c USB: ehci: ohci: Add clk_{un}prepare() support 2012-04-18 14:33:43 -07:00
ohci-tmio.c USB: ohci-tmio.c: remove err() usage 2012-04-27 11:24:44 -07:00
ohci-xls.c USB: ohci-xls.c: remove err() usage 2012-04-27 11:24:45 -07:00
ohci.h usb: otg: Rename otg_transceiver to usb_phy 2012-02-13 13:34:36 +02:00
oxu210hp-hcd.c USB: oxu210hp-hcd.c: remove dbg() usage 2012-05-01 21:33:43 -07:00
oxu210hp.h
pci-quirks.c xhci: Add Lynx Point to list of Intel switchable hosts. 2012-05-03 13:18:40 -07:00
pci-quirks.h Intel xhci: Support EHCI/xHCI port switching. 2011-05-27 12:07:36 -07:00
r8a66597-hcd.c Revert "usb: move struct usb_device->children to struct usb_hub_port->child" 2012-05-14 09:20:37 -07:00
r8a66597.h usb: r8a66597-hcd: add function for external controller 2011-07-08 14:57:11 -07:00
sl811_cs.c pcmcia: Convert pcmcia_device_id declarations to const 2011-05-06 07:46:22 +02:00
sl811-hcd.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
sl811.h
ssb-hcd.c usb/ssb: Add missing #include <linux/slab.h> 2012-04-23 13:22:00 -07:00
u132-hcd.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
uhci-debug.c USB: UHCI: Add support for big endian descriptors 2011-05-19 16:43:20 -07:00
uhci-grlib.c treewide: Convert uses of struct resource to resource_size(ptr) 2011-06-10 14:55:36 +02:00
uhci-hcd.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
uhci-hcd.h USB: UHCI: Add support for big endian descriptors 2011-05-19 16:43:20 -07:00
uhci-hub.c UHCI: hub_status_data should indicate if ports are resuming 2012-04-09 15:43:21 -07:00
uhci-pci.c USB: UHCI: Move PCI specific functions to uhci-pci.c 2011-05-06 18:24:00 -07:00
uhci-q.c usb: fix number of mapped SG DMA entries 2011-12-09 16:18:19 -08:00
xhci-dbg.c xHCI: correct to print the true HSEE of USBCMD 2012-04-10 15:21:52 -07:00
xhci-ext-caps.h xHCI: Correct the #define XHCI_LEGACY_DISABLE_SMI 2012-04-11 08:31:06 -07:00
xhci-hub.c xHCI: keep track of ports being resumed and indicate in hub_status_data 2012-05-03 13:10:17 -07:00
xhci-mem.c xhci: Don't write zeroed pointers to xHC registers. 2012-04-11 08:28:55 -07:00
xhci-pci.c xHCI: add XHCI_RESET_ON_RESUME quirk for VIA xHCI host 2012-04-11 08:28:59 -07:00
xhci-plat.c usb: host: xhci: add platform driver support 2012-03-13 10:30:59 -07:00
xhci-ring.c USB: xhci-hcd: print URB's expected length in decimal, not hex 2012-05-07 16:43:58 -07:00
xhci.c USB: xhci: testing sizeof xhci_doorbell_array 2 time 2012-05-07 16:44:49 -07:00
xhci.h xHCI: keep track of ports being resumed and indicate in hub_status_data 2012-05-03 13:10:17 -07:00