diff options
| author | Jack Pham <jackp@codeaurora.org> | 2013-08-14 00:40:13 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-14 23:18:26 +0400 |
| commit | 726a85caa30201eaadb993397a3e8ec23949c608 (patch) | |
| tree | 94b1332a3df2540c251fdcf04d3ebabc227a854b /drivers/usb | |
| parent | 034d1527adebd302115c87ef343497a889638275 (diff) | |
| download | linux-726a85caa30201eaadb993397a3e8ec23949c608.tar.xz | |
usb: host: add Kconfig option for EHSET
commit 9841f37a1c ("usb: ehci: Add support for SINGLE_STEP_SET_FEATURE
test of EHSET") added additional code to the EHCI hub driver but it is
anticipated to only have a limited audience (e.g. embedded silicon
vendors and integrators). Avoid subjecting all EHCI (and in the future
maybe xHCI/OHCI, etc.) HCD users to code bloat by conditionally
compiling the EHSET-specific additions with a new Kconfig option,
CONFIG_USB_HCD_TEST_MODE.
Signed-off-by: Jack Pham <jackp@codeaurora.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/Kconfig | 17 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-hub.c | 8 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-q.c | 2 |
3 files changed, 26 insertions, 1 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index e3ea970fe424..c41005a47802 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -699,3 +699,20 @@ config USB_HCD_SSB for ehci and ohci. If unsure, say N. + +config USB_HCD_TEST_MODE + bool "HCD test mode support" + ---help--- + Say 'Y' to enable additional software test modes that may be + supported by the host controller drivers. + + One such test mode is the Embedded High-speed Host Electrical Test + (EHSET) for EHCI host controller hardware, specifically the "Single + Step Set Feature" test. Typically this will be enabled for On-the-Go + or embedded hosts that need to undergo USB-IF compliance testing with + the aid of special testing hardware. In the future, this may expand + to include other tests that require support from a HCD driver. + + This option is of interest only to developers who need to validate + their USB hardware designs. It is not needed for normal use. If + unsure, say N. diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index f8b215fa0d93..3bf9f482710c 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -712,6 +712,8 @@ ehci_hub_descriptor ( } /*-------------------------------------------------------------------------*/ +#ifdef CONFIG_USB_HCD_TEST_MODE + #define EHSET_TEST_SINGLE_STEP_SET_FEATURE 0x06 static void usb_ehset_completion(struct urb *urb) @@ -847,6 +849,7 @@ cleanup: kfree(buf); return retval; } +#endif /* CONFIG_USB_HCD_TEST_MODE */ /*-------------------------------------------------------------------------*/ static int ehci_hub_control ( @@ -1222,13 +1225,16 @@ static int ehci_hub_control ( * about the EHCI-specific stuff. */ case USB_PORT_FEAT_TEST: +#ifdef CONFIG_USB_HCD_TEST_MODE if (selector == EHSET_TEST_SINGLE_STEP_SET_FEATURE) { spin_unlock_irqrestore(&ehci->lock, flags); retval = ehset_single_step_set_feature(hcd, wIndex); spin_lock_irqsave(&ehci->lock, flags); break; - } else if (!selector || selector > 5) + } +#endif + if (!selector || selector > 5) goto error; spin_unlock_irqrestore(&ehci->lock, flags); ehci_quiesce(ehci); diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 903d00dd6683..33336874c47b 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -1139,6 +1139,7 @@ submit_async ( } /*-------------------------------------------------------------------------*/ +#ifdef CONFIG_USB_HCD_TEST_MODE /* * This function creates the qtds and submits them for the * SINGLE_STEP_SET_FEATURE Test. @@ -1238,6 +1239,7 @@ cleanup: qtd_list_free(ehci, urb, head); return -1; } +#endif /* CONFIG_USB_HCD_TEST_MODE */ /*-------------------------------------------------------------------------*/ |