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063ebeb433
linux/drivers/usb/host
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Sarah Sharp 063ebeb433 xhci: Report USB 2.1 link status for L1 
USB 2.1 devices can go into a lower power link state, L1.  When they are
active, they are in the L0 state.  The L1 transition can be purely
driven by software, or some USB host controllers (including some xHCI
1.0 hosts) allow the host hardware to track idleness and automatically
place a port into L1.

The USB 2.1 Link Power Management ECN gives a way for USB 2.1 hubs that
support LPM to report that a port is in L1.  The port status bit 5 will
be set when the port is in L1.  The xHCI host reports the root port as
being in 'U2' when the devices is in L1, and as being in 'U0' when the
port is active (in L0).

Translate the xHCI USB 2.1 link status into the format external hubs
use, and pass the L1 status up to the USB core and tools like lsusb.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2013-07-23 14:19:19 -07:00
..
whci wusbhc: disable suspend and resume on the root hub. 2013-06-06 12:14:38 -07:00
bcma-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ehci-atmel.c ehci-atmel.c: prepare clk before calling enable 2013-06-24 16:21:52 -07:00
ehci-dbg.c USB: EHCI: convert singly-linked lists to list_heads 2013-03-25 13:35:05 -07:00
ehci-fsl.c usb: fsl: add missing platform_driver owner 2013-05-16 17:48:28 -07:00
ehci-fsl.h powerpc/usb: fix bug of CPU hang when missing USB PHY clock 2012-09-05 16:52:08 -07:00
ehci-grlib.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
ehci-hcd.c USB: EHCI: make ehci-tegra a separate driver 2013-06-17 13:54:48 -07:00
ehci-hub.c USB: EHCI: export ehci_handshake for ehci-hcd sub-drivers 2013-06-17 13:54:47 -07:00
ehci-mem.c
ehci-msm.c USB: EHCI: make ehci-msm a separate driver 2013-04-08 09:40:20 -07:00
ehci-mv.c USB: ehci-mv: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:14 -07:00
ehci-mxc.c USB: ehci-mxc: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:15 -07:00
ehci-octeon.c USB: ehci-octeon: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:15 -07:00
ehci-omap.c USB: ehci-omap: Tweak PHY initialization sequence 2013-06-17 13:56:25 -07:00
ehci-orion.c Merge 3.10-rc3 into usb-next 2013-05-27 11:00:52 +09:00
ehci-pci.c USB: Fix initconst in ehci driver 2013-04-23 10:10:29 -07:00
ehci-platform.c ARM SoC specific changes 2013-07-02 13:43:38 -07:00
ehci-pmcmsp.c USB: EHCI: Remove double assignment of .start in ehci_msp_hc_driver 2013-06-17 13:56:25 -07:00
ehci-ppc-of.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
ehci-ps3.c usb: PS3 EHCI remove unneeded ehci_shutdown 2013-04-01 12:32:43 -07:00
ehci-q.c usb: ehci: mark unlink_empty_async_suspended() as __maybe_unused 2013-03-28 14:49:53 -07:00
ehci-s5p.c usb: ehci-s5p: skip phy setup for Exynos5440 based platforms 2013-05-30 21:34:29 +09:00
ehci-sched.c USB: EHCI: fix regression related to qh_refresh() 2013-05-30 21:20:04 +09:00
ehci-sead3.c USB: ehci-sead3: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:16 -07:00
ehci-sh.c USB: ehci-sh: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:17 -07:00
ehci-spear.c usb: host: ehci-spear: Remove redundant checks 2013-05-30 21:32:53 +09:00
ehci-sysfs.c
ehci-tegra.c USB: EHCI: tegra: Fix oops in error cleanup 2013-06-17 13:56:25 -07:00
ehci-tilegx.c usb: host: ehci-tilegx: Remove redundant platform_set_drvdata() 2013-05-17 10:14:52 -07:00
ehci-timer.c USB: EHCI: improve end_unlink_async() 2013-03-25 13:36:32 -07:00
ehci-w90x900.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ehci-xilinx-of.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
ehci.h USB: EHCI: export ehci_handshake for ehci-hcd sub-drivers 2013-06-17 13:54:47 -07:00
fhci-dbg.c
fhci-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
fhci-hub.c
fhci-mem.c
fhci-q.c
fhci-sched.c USB: FHCI: upgrade the isochronous API 2013-05-30 21:34:31 +09:00
fhci-tds.c
fhci.h USB: FHCI: upgrade the isochronous API 2013-05-30 21:34:31 +09:00
fsl-mph-dr-of.c USB: fsl-mph-dr-of: fix regression on mpc5121e 2013-01-11 16:01:06 -08:00
fusbh200-hcd.c usb: host: fusbh200-hcd: rename two functions 2013-06-03 10:52:40 -07:00
fusbh200.h usb host: Faraday USB2.0 FUSBH200-HCD driver 2013-05-17 10:12:52 -07:00
hwa-hc.c USB: HWA: fix device probe failure 2013-06-24 16:20:43 -07:00
imx21-dbg.c
imx21-hcd.c USB: IMX21: upgrade the isochronous API 2013-05-30 21:34:30 +09:00
imx21-hcd.h ARM: imx: move platform_data definitions 2012-09-14 11:17:21 +02:00
isp116x-hcd.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
isp116x.h
isp1362-hcd.c procfs: new helper - PDE_DATA(inode) 2013-04-09 14:13:32 -04:00
isp1362.h
isp1760-hcd.c USB: remove remaining instances of USB_SUSPEND 2013-05-15 13:44:44 -04:00
isp1760-hcd.h
isp1760-if.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
Kconfig Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2013-07-13 14:52:21 -07:00
Makefile USB: EHCI: make ehci-tegra a separate driver 2013-06-17 13:54:48 -07:00
octeon2-common.c
ohci-at91.c USB: ohci-at91: prepare clk before calling enable 2013-06-24 16:21:52 -07:00
ohci-da8xx.c usb: host: ohci-da8xx: Remove redundant platform_set_drvdata() 2013-05-17 10:14:52 -07:00
ohci-dbg.c
ohci-ep93xx.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-exynos.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ohci-hcd.c USB: OHCI: remove bogus #error 2013-06-06 11:16:44 -07:00
ohci-hub.c USB: OHCI: prepare to make ohci-hcd a library module 2013-05-30 21:36:03 +09:00
ohci-jz4740.c USB: ohci-jz4740: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:17 -07:00
ohci-mem.c
ohci-nxp.c drivers/usb/host: remove leftover release_mem_region 2013-05-30 21:32:52 +09:00
ohci-octeon.c usb: host: ohci-octeon: Remove redundant platform_set_drvdata() 2013-05-17 10:14:52 -07:00
ohci-omap3.c Merge 3.10-rc3 into usb-next 2013-05-27 11:00:52 +09:00
ohci-omap.c usb: host: ohci-omap: Remove redundant platform_set_drvdata() 2013-05-17 10:14:53 -07:00
ohci-pci.c USB: OHCI: make ohci-pci a separate driver 2013-05-30 21:36:03 +09:00
ohci-platform.c USB: OHCI: make ohci-platform a separate driver 2013-06-03 11:02:26 -07:00
ohci-ppc-of.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
ohci-ps3.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-pxa27x.c Merge 3.10-rc3 into usb-next 2013-05-27 11:00:52 +09:00
ohci-q.c USB: OHCI: Generic changes to make ohci-pci a separate driver 2013-05-30 21:36:03 +09:00
ohci-s3c2410.c usb: Convert to devm_ioremap_resource() 2013-01-22 11:41:58 -08:00
ohci-sa1111.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-sm501.c USB: ohci-sm501: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:18 -07:00
ohci-spear.c Merge 3.10-rc3 into usb-next 2013-05-27 11:00:52 +09:00
ohci-tilegx.c usb: host: ohci-tilegx: Remove redundant platform_set_drvdata() 2013-05-17 10:14:53 -07:00
ohci-tmio.c usb: host: ohci-tmio: Remove redundant platform_set_drvdata() 2013-05-17 10:14:53 -07:00
ohci.h USB: OHCI: add a name for the platform-private field 2013-06-03 11:03:18 -07:00
oxu210hp-hcd.c Merge 3.10-rc3 into usb-next 2013-05-27 11:00:52 +09:00
oxu210hp.h
pci-quirks.c USB: OHCI: Generic changes to make ohci-pci a separate driver 2013-05-30 21:36:03 +09:00
pci-quirks.h USB: OHCI: Generic changes to make ohci-pci a separate driver 2013-05-30 21:36:03 +09:00
r8a66597-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
r8a66597.h
sl811_cs.c drivers/usb: use module_pcmcia_driver() in pcmcia drivers 2013-03-15 12:26:38 -07:00
sl811-hcd.c USB: remove remaining instances of USB_SUSPEND 2013-05-15 13:44:44 -04:00
sl811.h
ssb-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
u132-hcd.c USB: remove CONFIG_USB_SUSPEND option 2013-03-28 11:10:22 -07:00
uhci-debug.c USB: uhci: beautify source code 2013-01-24 13:59:26 -08:00
uhci-grlib.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
uhci-hcd.c Merge 3.8-rc5 into usb-next 2013-01-25 12:41:02 -08:00
uhci-hcd.h USB: UHCI: remove unused definition 2013-01-24 13:42:09 -08:00
uhci-hub.c USB: UHCI: fix for suspend of virtual HP controller 2013-05-15 13:41:40 -04:00
uhci-pci.c
uhci-platform.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
uhci-q.c USB: fix latency in uhci-hcd and ohci-hcd 2013-05-15 13:42:45 -04:00
xhci-dbg.c xhci: Remove BUG_ON in xhci_get_input_control_ctx. 2013-06-14 13:50:17 -07:00
xhci-ext-caps.h usb: xhci: add USB2 Link power management BESL support 2013-06-05 16:48:24 -07:00
xhci-hub.c xhci: Report USB 2.1 link status for L1 2013-07-23 14:19:19 -07:00
xhci-mem.c xhci: check for failed dma pool allocation 2013-06-18 10:53:54 -07:00
xhci-pci.c xhci: Disable D3cold for buggy TI redrivers. 2013-05-24 15:23:59 -07:00
xhci-plat.c usb: xhci: add the suspend/resume functionality 2013-07-23 14:19:18 -07:00
xhci-ring.c xhci: Remove BUG_ON in xhci_get_input_control_ctx. 2013-06-14 13:50:17 -07:00
xhci.c xhci: Add missing unlocks on error paths 2013-06-25 16:41:06 -07:00
xhci.h Merge 3.10-rc5 into usb-next 2013-06-08 21:27:51 -07:00