- 17 Oct, 2008 40 commits
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Li Yang authored
Fix to comply with USB spec. Signed-off-by:
Li Yang <leoli@freescale.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Li Yang authored
The original code didn't respond correctly to get status request on device and endpoint. Although normal operations can work without the fix. It is not compliant with USB spec chapter9 and fails USBCV ch9 tests. The patch fix this and a few style/typo problems. Signed-off-by:
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Will Newton authored
In some circumstances when fsl_udc_probe fails udc_controller is freed but the pointer remains non-NULL. fsl_udc_remove will then try and teardown the partly initialized and freed controller structure resulting in an oops. This patch ensures udc_controller is either NULL or fully initialized after fsl_udc_probe. Signed-off-by:
Will Newton <will.newton@gmail.com> Acked-by:
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Will Newton authored
Add a wmb to fsl_queue_td before priming the endpoint. This ensures that the modifications to the QH are seen by the hardware. Added comment as suggested by Felipe Balbi. Signed-off-by:
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Will Newton authored
fsl_queue_td always returns 0. Make it void and remove checks for non-zero return in callers. Signed-off-by:
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Will Newton authored
Uninline udc_reset_ep_queue and remove it's unused return value. Signed-off-by:
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Will Newton authored
Rename the arguments of the fsl_writel macro to match their use. Remove a couple of unnecessary prototypes. Signed-off-by:
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Will Newton authored
Move spinlock initialization earlier so we can turn shared irq handler debugging on safely. Signed-off-by:
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Will Newton authored
Missing spaces were causing the /proc debugging output to be rather unreadable. Signed-off-by:
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Will Newton authored
VDBG always outputs a trailing \n. Signed-off-by:
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Will Newton authored
Fix some sparse "integer used as NULL pointer" warnings. Remove some unnecessary volatiles and static initialization. Remove some unused struct members and reorder to improve packing. Remove a few unneeded includes. Signed-off-by:
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Will Newton authored
Remove check for udc == NULL in dr_controller_setup. All callers of this function have already dereferenced udc at some point. Signed-off-by:
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Will Newton authored
Make dr_ep_setup function static as it's never used outside this file. Signed-off-by:
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Stephen Ware authored
Add range check on buffer sizes passed in from user space (max is 8*PAGE_SIZE) which will work for the most common spectrometers even at pages as small as 1K. Add kref to vst device structure to preserve reference to the usb object until we truly are done with it. From: Stephen Ware <stephen.ware@eqware.net> From: Dennis O'Brien <dennis.obrien@eqware.net> Signed-off-by:
Dennis O'Brien <dennis.obrien@eqware.net> Signed-off-by:
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Alan Stern authored
This patch (as1149) fixes an obscure problem in OHCI polling. In the current code, if the RHSC interrupt status flag turns on at a time when RHSC interrupts are disabled, it will remain on forever: The interrupt handler is the only place where RHSC status gets turned back off; The interrupt handler won't turn RHSC status off because it doesn't turn off status flags if the corresponding interrupt isn't enabled; RHSC interrupts will never get enabled because ohci_root_hub_state_changes() doesn't reenable RHSC if RHSC status is on! As a result we will continue polling indefinitely instead of reverting to interrupt-driven operation, and the root hub will not autosuspend. This particular sequence of events is not at all unusual; in fact plugging a USB device into an OHCI controller will usually cause it to occur. Of course, this is a bug. The proper thing to do is to turn off RHSC status just before reading the actual port status values. That way either a port status change will be detected (if it occurs before the status read) or it will turn RHSC back on. Possibly both, but that won't hurt anything. We can still check for systems in which RHSC is totally broken, by re-reading RHSC after clearing it and before reading the port statuses. (This re-read has to be done anyway, to post the earlier write.) If RHSC is on but no port-change statuses are set, then we know that RHSC is broken and we can avoid re-enabling it. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> Signed-off-by:
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Dan Williams authored
Add some Pantech mobile broadband IDs. Signed-off-by:
Dan Williams <dcbw@redhat.com> Signed-off-by:
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Jaroslav Kysela authored
This patch adds initial_descriptor_timeout module parameter for usbcore.ko to allow modify initial 64-byte USB_REQ_GET_DESCRIPTOR timeout for non-standard devices. For example, the SATA8000 device from DATAST0R Technology Corp requires about 10 seconds to send reply (probably it waits until inserted disk is ready for operation). Also, this patch adds missing usbcore parameters to Documentation/kernel-parameters.txt. Signed-off-by:
Jaroslav Kysela <perex@perex.cz> Acked-by:
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Sarah Sharp authored
Create a new sysfs file per interface named supports_autosuspend. This file returns true if an interface driver's .supports_autosuspend flag is set. It also returns true if the interface is unclaimed (since the USB core will autosuspend a device if an interface is not claimed). This new sysfs file will be useful for user space scripts to test whether a USB device correctly auto-suspends. Signed-off-by:
Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: Oliver Neukum <oliver@neukum.org> Signed-off-by:
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Alan Stern authored
This patch (as1147) fixes the remote-wakeup support for EHCI controllers using the ARC/TDI "embedded-TT" core. These controllers turn off the RESUME bit by themselves when a port resume is complete; hence we need to keep separate track of which ports are suspended or in the process of resuming. The patch also makes a couple of small improvements in ehci_irq(), replacing reads of the command register with the value already stored in a local variable. Signed-off-by:
Thomas Reitmayr <treitmayr@devbase.at> CC: David Brownell <david-b@pacbell.net> Signed-off-by:
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Alan Stern authored
This patch (as1148) adds a new "snoop" message to usbfs when a device file is opened, identifying the process responsible. This comes in extremely handy when trying to determine which program is doing some unwanted USB access. Signed-off-by:
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Jon K Hellan authored
The AnyData ADU-310 series of wireless modems uses the same product ID as the ADU-E100 series. Signed-off-by:
Jon K Hellan <hellan@acm.org> Signed-off-by:
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Alan Stern authored
This patch (as1139) adds a warning to the system log whenever ehci-hcd is loaded after ohci-hcd or uhci-hcd. Nowadays most distributions are pretty good about not doing this; maybe the warning will help convince anyone still doing it wrong. Signed-off-by:
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Alan Stern authored
This patch (as1145) removes the essentially useless driver-version strings from ehci-hcd, ohci-hcd, and uhci-hcd. It also unifies the form of the banner lines they display upon loading and adds a missing test for usb_disabled() to ehci-hcd. Signed-off-by:
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Oliver Neukum authored
This extends the anchor API as btusb needs for autosuspend. Signed-off-by:
Oliver Neukum <oneukum@suse.de> Signed-off-by:
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Sarah Sharp authored
The kernel doc for usb_bulk_msg() says the timeout for a bulk message should be specified in milliseconds. The ftdi-elan driver converts milliseconds to jiffies before passing the timeout to usb_bulk_msg(). This is mostly harmless, since it will just lead to very long timeouts, but was obviously not the intent of the original author. Signed-off-by:
Sarah Sharp <sarah.a.sharp@intel.com> Acked-by:
Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by:
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Julien Brunel authored
In case of error, the function isp1760_register returns an ERR pointer, but never returns a NULL pointer. So after a call to this function, a NULL test should be replaced by an IS_ERR test. Moreover, we have noticed that: (1) the result of isp1760_register is assigned through the function pci_set_drvdata without an error test, (2) if the call to isp1760_register fails, the current function (isp1761_pci_probe) returns 0, and if it succeeds, it returns -ENOMEM, which seems odd. Thus, we suggest to move the test before the call to pci_set_drvdata to correct (1), and to turn it into a non IS_ERR test to correct (2). The semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @bad_null_test@ expression x,E; statement S1, S2; @@ x = isp1760_register(...) ... when != x = E * if (x == NULL) S1 else S2 // </smpl> Signed-off-by:
Julien Brunel <brunel@diku.dk> Signed-off-by:
Julia Lawall <julia@diku.dk> Signed-off-by:
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Yi Yang authored
ehci_watchdog will wake up CPU very frequently so that CPU stays at C3 very short, average residence time is about 50 ms on Aspire One, but we expect it should be about 1 second or more, so this kind of periodic timer is very bad for power saving. We can't remove this timer because of some bad USB controller chipset, but at least we should reduce its side effect to as possible as low. This patch can make CPU stay at C3 longer, average residence time is about twice as long as original. Please consider to apply it, thanks Signed-off-by:
Yi Yang <yi.y.yang@intel.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Alan Stern authored
This patch (as1140) adds a little intelligence to the interrupt-URB scheduler in uhci-hcd. Right now the scheduler is stupid; every URB having the same period is assigned to the same slot. Thus a large group of period-N URBs can fill their slot and cause -ENOSPC errors even when all the lower-period slots are empty. With the patch, if an URB doesn't fit in its assigned slot then the scheduler will try using lower-period slots. This will provide greater flexibility. As an example, the driver will be able to handle more than just three or four mice, which the current driver cannot. Signed-off-by:
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Huang Weiyi authored
Removed duplicated #include <linux/firmware.h> in drivers/usb/serial/ti_usb_3410_5052.c. Signed-off-by:
Huang Weiyi <hwy@cn.fujitsu.com> Signed-off-by:
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Stephen Ware authored
This patch adds the vstusb driver to the drivers/usb/misc directory. This driver provides support for Vernier Software & Technology spectrometers, all made by Ocean Optics. The driver provides both IOCTL and read()/write() methods for sending raw data to spectrometers across the bulk channel. Each method allows for a configured timeout. From: Stephen Ware <stephen.ware@eqware.net> Signed-off-by:
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David Brownell authored
Bugfix for the new CDC Ethernet code: as part of activating the network interface's USB link, make sure its link management code knows whether the interface is open or not. Without this fix, the link won't work right when it's brought up before the link is active ... because the initial notification it sends will have the wrong link state (down, not up). Makes it hard to bridge these links (on the host side), among other things. Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Cc: stable <stable@kernel.org> [2.6.27] Signed-off-by:
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Tony Lindgren authored
Sync up USB parts of the omap_udc support in mainline with the OMAP tree. This patch addresses some OMAP2 differences ... there's another, with respect to the double-buffering issue with PIO-IN in omap_ep_setup() (which is now out of sync with the comments), but it's not clear right now how to address that. From: Tony Lindgren <tony@atomide.com> Signed-off-by:
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Tony Lindgren authored
Sync up USB parts of the ohci-omap support in mainline with the OMAP tree. This patch supports another first generation OMAP1 part: not just the OMAP 1510 (and its catalog version, the OMAP 5910), but also OMAP 310. From: Tony Lindgren <tony@atomide.com> Signed-off-by:
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Felipe Balbi authored
When removing the procfs file, I forgot to remove some code that created and removed that file. Here's a patch to fix it. Ideally this patch will be melded into the patch removing the procfs file, don't know if it's possible still. Signed-off-by:
Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by:
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Felipe Balbi authored
Basically getting rid of CaMeLcAsE, but also adding missing lines and spaces. Signed-off-by:
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David Brownell authored
Minor musb_hdrc updates: - so it'll build on DaVinci, given relevant platform updates; * remove support for an un-shipped OTG prototype * rely on gpiolib framework conversion for the I2C GPIOs * the <asm/arch/hdrc_cnf.h> mechanism has been removed - catch comments up to the recent removal of the per-SOC header with the silicon configuration data; - and remove two inappropriate "inline" declarations which just bloat host side code. There are still some more <asm/arch/XYZ.h> ==> <mach/XYZ.h> changes needed in this driver, catching up to the relocation of most of the include/asm-arm/arch-* contents. Signed-off-by: -
Bryan Wu authored
Signed-off-by:
Bryan Wu <cooloney@kernel.org> Signed-off-by:
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Ajay Kumar Gupta authored
Fixes kernel panic while ISO IN transfer is aborted.Replaced usb_hcd_unlink_urb_from_ep() from musb_giveback() to __musb_giveback() to make sure urb is unlinked before giveback when __musb_giveback() is called from musb_urb_dequeue(). Acquired musb->lock() before usb_hcd_unlink_urb_from_ep() within in enqueue path. Signed-off-by:
Ajay Kumar Gupta <ajay.gupta@ti.com> Signed-off-by:
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Ajay Kumar Gupta authored
Fixes enumeration failures when a USB device attached to a LS hub is connected to OMAP EVM via HS hub. This is fixed by correctly programming hub address register in enqueue path. Signed-off-by:
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Felipe Balbi authored
For those archs which don't provide read/write friends we provide our own implementation so musb driver won't break compilation. This is temporary fix until a better solution comes from upstream. Idealy, <linux/io.h> would provide those calls if the architecture did not provide them yet. In that case being possible to remove all those stubs from musb_io.h Signed-off-by:
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