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path: root/include/usb.h
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* dm: usb: sandbox: Add a uclass for USB device emulationSimon Glass2015-04-18-1/+63
| | | | | | | | | | With sandbox we want to be able to emulate USB devices so that we can test the USB stack. Add a uclass to support this. It implements the same operations as a normal USB device driver, but in this case passes them on to an emulation driver. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Marek Vasut <marex@denx.de>
* dm: usb: Allow USB drivers to be declared and auto-probedSimon Glass2015-04-18-0/+107
| | | | | | | | | | | | | | | | | | | | | | | | | USB devices in U-Boot are currently probed only after all devices have been enumerated. Each type of device is probed by custom code, e.g.: - USB storage - Keyboard - Ethernet With driver model this approach doesn't work very well. We could build a picture of the bus and then go back and add the devices later, but this means that the data structures are incomplete for quite a while. It also does not follow the model of being able to bind a device when we discover it. We would prefer to have devices automatically be bound as the device is enumerated. This allows us to attach drivers to particular USB classes or product/vendor IDs. This is the method used by Linux. Add the required #defines from Linux, a way of declaring a USB driver and the logic to locate the correct driver given the USB device's descriptors. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Marek Vasut <marex@denx.de>
* dm: usb: Refactor port resetsSimon Glass2015-04-18-1/+17
| | | | | | | | Move the port reset code into its own function. Rename usb_hub_reset() to indicate that is is now a legacy function. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Marek Vasut <marex@denx.de>
* dm: usb: Adjust usb_alloc_new_device() to return an errorSimon Glass2015-04-18-2/+18
| | | | | | | | | | This function returns NULL on error at present. Adjust it so that we can return a real error, as is needed with driver model. Also improve the error handling in its caller, usb_hub_port_connect_change(), and adjust the code order to prepare for driver model. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Marek Vasut <marex@denx.de>
* dm: usb: Add a uclass for USB controllersSimon Glass2015-04-18-5/+280
| | | | | | | | Add a uclass that can represent a USB controller. For now we do not create devices for things attached to the controller. This will be added later. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Marek Vasut <marex@denx.de>
* usb: Convert protocol header structures to use explicitly sized variablesSergey Temerkhanov2015-04-14-9/+9
| | | | | | | | This patch converts USB protocol headers to use explicitly sized fields like the rest of the code Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com> Signed-off-by: Sergey Temerkhanov <s.temerkhanov@gmail.com>
* musb-new: Add interrupt queue supportHans de Goede2015-01-18-1/+2
| | | | | | | Add interrupt queue support, so that a usb keyboard can be used without causing huge latencies. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* musb-new: Fix reset sequence when in host modeHans de Goede2015-01-18-0/+5
| | | | | | | | | | | | | | | | | | | | | | This commit fixes a number of issues with the reset sequence of musb-new in host mode: 1) Our usb device probe relies on a second device reset being done after the first descriptors read. Factor the musb reset code into a usb_reset_root_port function (and add this as an empty define for other controllers), and call this when a device has no parent. 2) Just like with normal usb controllers there needs to be a delay after reset, for normal usb controllers, this is handled in hub_port_reset, add a delay to usb_reset_root_port. 3) Sync the musb reset sequence with the upstream kernel, clear all bits of power except bits 4-7, and increase the time reset is asserted to 50 ms. With these fixes an usb keyboard I have now always enumerates properly, where as earlier it would only enumerare properly once every 5 tries. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* musb-new: Add sunxi musb controller supportHans de Goede2015-01-18-2/+2
| | | | | | | This is based on Jussi Kivilinna's work for the linux-sunxi-3.4 kernel to use the kernels musb driver instead of Allwinners own custom driver. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* usb: Add an interval parameter to create_int_queueHans de Goede2015-01-18-1/+1
| | | | | | | | Currently create_int_queue is only implemented by the ehci code, and that does not honor interrupt intervals, but other drivers which might also want to implement create_int_queue may honor intervals, so add an interval param. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* usb: include <asm/cache.h> and <part.h> from include/usb.hMasahiro Yamada2014-11-07-0/+2
| | | | | | | The header file include/usb.h references ARCH_DMA_MINALIGH and block_dev_desc_t, thus it must include <asm/cache.h> and <part.h>. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* usb: Make pollable int support available outside of ehci-hcd.cHans de Goede2014-11-04-0/+9
| | | | Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* usb: dwc2: Add driver for Synopsis DWC2 USB IP blockOleksandr Tymoshenko2014-10-22-1/+2
| | | | | | | | | | | | | | | | | | | This is the USB host controller used on the Altera SoCFPGA and Raspbery Pi. This code has three checkpatch warnings, but to make sure it stays at least readable and clear, these are not fixed. These bugs are in the USB request handling combinatorial logic, so any abstracting of those is out of question. Tested on DENX MCV (Altera SoCFPGA 5CSFXC6C6U23C8N) and RPi B+ (BCM2835). Signed-off-by: Oleksandr Tymoshenko <gonzo@bluezbox.com> Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Marek Vasut <marex@denx.de> Cc: Chin Liang See <clsee@altera.com> Cc: Dinh Nguyen <dinguyen@altera.com> Acked-by: Pavel Machek <pavel@denx.de> Cc: Vince Bridgers <vbridger@altera.com> Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com>
* usb: kbd: Allow "usb reset" to continue when an usb kbd is usedHans de Goede2014-10-06-1/+1
| | | | | | | | Use the new force parameter to make the stdio_deregister succeed, replacing stdin with a nulldev, and assume that the usb keyboard will come back after the reset. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* usb: dfu: fix boards wo USB cable detectionMateusz Zalega2014-05-05-10/+0
| | | | | | | | | | | | | | | | | | | | | | | | Former usb_cable_connected() patch broke compilation of boards which do not support this feature. I've renamed usb_cable_connected() to g_dnl_usb_cable_connected() and added its default implementation to gadget downloader driver code. There's only one driver of this kind and it's unlikely there'll be another, so there's no point in keeping it in /common. Previously this function was declared in usb.h. I've moved it, since it's more appropriate to keep it in g_dnl.h - usb.h seems to be intended for USB host implementation. Existing code, confronted with default -EOPNOTSUPP return value, continues as if the cable was connected. CONFIG_USB_CABLE_CHECK was removed. Change-Id: Ib9198621adee2811b391c64512f14646cefd0369 Signed-off-by: Mateusz Zalega <m.zalega@samsung.com> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Lukasz Majewski <l.majewski@samsung.com>
* usb: ums: add ums exit feature by ctrl+c or by detach usb cablePrzemyslaw Marczak2013-11-08-0/+10
| | | | | | | | | | | | | | | This patch allows exiting from UMS mode to u-boot prompt by detaching usb cable or by pressing ctrl+c. Add new config: CONFIG_USB_CABLE_CHECK. If defined then board file should provide function: usb_cable_connected() (include/usb.h) that return 1 if cable is connected and 0 otherwise. Changes v2: - add a note to the README Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Marek Vasut <marex@denx.de>
* usb: add enum usb_init_type parameter to usb_lowlevel_initTroy Kisky2013-10-20-1/+1
| | | | | | This parameter will later be used to verify OTG ports. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
* usb: rename board_usb_init_type to usb_init_typeTroy Kisky2013-10-20-13/+13
| | | | | | | | | | This will be used by usb_lowlevel_init so it will no longer be used by only board specific functions. Move definition of enum usb_init_type higher in file so that it will be available for usb_low_level_init. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
* usb: new board-specific USB init interfaceMateusz Zalega2013-10-20-2/+28
| | | | | | | | | | | | | | This commit unifies board-specific USB initialization implementations under one symbol (usb_board_init), declaration of which is available in usb.h. New API allows selective initialization of USB controllers whenever needed. Signed-off-by: Mateusz Zalega <m.zalega@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com> Cc: Marek Vasut <marex@denx.de> Cc: Lukasz Majewski <l.majewski@samsung.com>
* USB: xHCI: Add stack support for xHCIVivek Gautam2013-10-20-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | This adds stack layer for eXtensible Host Controller Interface which facilitates use of USB 3.0 in host mode. Adapting xHCI host controller driver in linux-kernel by Sarah Sharp to needs in u-boot. Initial porting from Linux kernel version 3.4, with following top commit history of drivers/usb/host/xhci* : cf84055 xHCI: Cleanup isoc transfer ring when TD length mismatch found This adds the basic xHCI host controller driver with bare minimum features: - Control/Bulk transfer support has been added with required infrastructure for necessary xHC data structures. - Stream protocol hasn't been supported yet. - No support for quirky devices has been added. Signed-off-by: Vikas C Sajjan <vikas.sajjan@samsung.com> Signed-off-by: Julius Werner <jwerner@chromium.org> Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Cc: Simon Glass <sjg@chromium.org> Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Dan Murphy <dmurphy@ti.com> Cc: Marek Vasut <marex@denx.de>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-18/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* USB: SS: Add support for Super Speed USB interfaceVivek Gautam2013-05-05-0/+6
| | | | | | | | This adds usb framework support for super-speed usb, which will further facilitate to add stack support for xHCI. Signed-off-by: Vikas C Sajjan <vikas.sajjan@samsung.com> Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
* usb: Clean up newly allocated device nodes in case of configuration failureMilind Choudhary2012-12-17-0/+1
| | | | | | | | If probe of a newly connected device fails for some reason, clean up the allocated entry in usb_dev array. Signed-off-by: Milind Choudhary <milindc@codeaurora.org> Signed-off-by: Simon Glass <sjg@chromium.org>
* musb-new: omap2plus backend driverIlya Yanok2012-11-20-1/+2
| | | | | | | Backend driver for MUSB OTG controllers found on TI OMAP2/3/4 (tested only on OMAP3 Beagle). Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
* musb-new: am35x backend driverIlya Yanok2012-11-20-1/+1
| | | | | | | | | | | | | Backend driver for MUSB OTG controllers found on TI AM35x. It seems that on AM35X interrupt status registers can be updated _before_ core registers. As we don't use true interrupts in U-Boot and poll interrupt status registers instead this can result in interrupt handler being called with non-updated core registers. This confuses the code and result in hanged transfers. Add a small delay in am35x_interrupt as a workaround. Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
* musb-new: dsps backend driverIlya Yanok2012-11-20-1/+2
| | | | | | | Backend driver for MUSB OTG controllers found on TI AM33xx and TI81xx SoCs (tested with AM33xx only). Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
* usb: use linux/usb/ch9.h instead of usbdescriptors.hIlya Yanok2012-11-20-12/+3
| | | | | | | | | | | | | | | | | | | | | | Linux usb/ch9.h seems to have all the same information (and more) as usbdescriptors.h so use the former instead of the later one. As a consequense of this change USB_SPEED_* values don't correspond directly to EHCI speed encoding anymore, I've added necessary recoding in EHCI driver. Also there is no point to put speed into pipe anymore so it's removed and a bunch of host drivers fixed to look at usb_device->speed instead. Old usbdescriptors.h included is not removed as it seems to be used by old USB device code. This makes usb.h and usbdevice.h incompatible. Fortunately the only place that tries to include both are the old MUSB code and it needs usb.h only for USB_DMA_MINALIGN used in aligned attribute on musb_regs structure but this attribute seems to be unneeded (old MUSB code doesn't support any DMA at all). Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
* usb.h: Add udc_disconnect prototype to usb.hLukasz Dalek2012-10-15-0/+11
| | | | | | | PXA25x gadget implements common function usb_disconnect(). This patch adds this function prototype into usb.h for boards using it. Signed-off-by: Lukasz Dalek <luk0104@gmail.com>
* usb: lowlevel interface change to support multiple controllersLucas Stach2012-10-15-3/+7
| | | | | | | | | | | Carry an index in the lowlevel usb functions to make specify the respective usb controller. Also pass through an controller struct from lowlevel_init to the creation of the root usb device of this controller. Signed-off-by: Lucas Stach <dev@lynxeye.de> Reviewed-by: Marek Vasut <marex@denx.de>
* ehci-hcd.c, musb_core, usb.h: Add USB_DMA_MINALIGN define for cache alignmentTom Rini2012-07-18-0/+10
| | | | | | | | | | | | | | | | | | The USB spec says that 32 bytes is the minimum required alignment. However on some platforms we have a larger minimum requirement for cache coherency. In those cases, use that value rather than the USB spec minimum. We add a cpp check to <usb.h> to define USB_DMA_MINALIGN and make use of it in ehci-hcd.c and musb_core.h. We cannot use MAX() here as we are not allowed to have tests inside of align(...). Signed-off-by: Tom Rini <trini@ti.com> [marek.vasut]: introduce some crazy macro voodoo Signed-off-by: Marek Vasut <marex@denx.de> [ilya.yanok]: moved external buffer fixes to separate patch, we use {ALLOC,DEFINE}_ALIGN_BUFFER macros with alignment of USB_DMA_MINALIGN for qh_list, qh and qtd structures to make sure they are proper aligned for both controller and cache operations. Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
* USB: Align buffers at cachelinePuneet Saxena2012-05-20-1/+3
| | | | | | | | | | | | This avoids cache-alignment warnings shown in console when a usb command is entered. Whenever X bytes of unaligned buffer is invalidated, arm core invalidates X + Y bytes as per the cache line size and throws these warnings. Signed-off-by: Puneet Saxena <puneets@nvidia.com> Signed-off-by: Marek Vasut <marex@denx.de>
* usb: replace wait_ms() with mdelay()Mike Frysinger2012-03-19-1/+0
| | | | | | | | | | | | | | | | | | | | | | | Common code has a mdelay() func, so use that instead of the usb-specific wait_ms() func. This also fixes the build errors: ohci-hcd.c: In function 'submit_common_msg': /usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available ohci-hcd.c:1519:9: sorry, unimplemented: called from here /usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available ohci-hcd.c:1816:10: sorry, unimplemented: called from here /usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available ohci-hcd.c:1827:10: sorry, unimplemented: called from here /usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available ohci-hcd.c:1844:10: sorry, unimplemented: called from here /usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available ohci-hcd.c:1563:11: sorry, unimplemented: called from here /usr/local/src/u-boot/blackfin/include/usb.h:202:44: sorry, unimplemented: inlining failed in call to 'wait_ms': function body not available ohci-hcd.c:1583:9: sorry, unimplemented: called from here make[1]: *** [ohci-hcd.o] Error 1 Signed-off-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Marek Vasut <marex@denx.de>
* USB: move keyboard polling into kbd driveramartin@nvidia.com2012-03-03-1/+0
| | | | | | | | | This moves keyboard polling logic from USB HCD drivers into USB keyboard driver. Remove usb_event_poll() as keyboard polling was the only user of this API. With this patch USB keyboard works with EHCI controllers again. Tested on a tegra2 seaboard. Signed-off-by: Allen Martin <amartin@nvidia.com>
* USB: Separate out USB hub driverMarek Vasut2012-03-03-0/+8
| | | | | | Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Remy Bohmer <linux@bohmer.net> Acked-by: Mike Frysinger <vapier@gentoo.org>
* usb: increase non-bulk timeout for slow chipsets.Jason Cooper2011-08-08-1/+1
| | | | | | | | | | If you take a look at 96820a35, you'll see the original timeout was CONFIG_SYS_HZ. Which is 1000. After the mentioned change, non-bulk timeout was changed to 100. This causes timeout failures on the dreamplug platform when trying to initialize the usb microsd reader. Signed-off-by: Jason Cooper <u-boot@lakedaemon.net> Acked-by: Mike Frysinger <vapier@gentoo.org>
* Add USB host ethernet adapter supportSimon Glass2011-02-19-1/+8
| | | | | | | | | | | | This adds support for using USB Ethernet dongles in host mode. This is just the framework - drivers will come later. A new config option called CONFIG_USB_HOST_ETHER can be defined in board config files to switch this on. The was originally written by NVIDIA and was cleaned up for release by the Chromium authors. Signed-off-by: Simon Glass <sjg@chromium.org>
* Fix EHCI usb submit timeout and unify with OHCISimon Glass2011-02-19-0/+6
| | | | | | | | | | | | Changed both to use a common timeout for URB submission, since they were using different values and EHCI's was too short. Also fixed EHCI to actually check if urb submission succeeded, rather than silently continuing into the weeds. Change-Id: I7f71499ffaa05187d8e5618db2419e1606007b82 Signed-off-by: Simon Glass <sjg@chromium.org>
* musb: MSC host support for AM35xAjay Kumar Gupta2010-08-12-1/+1
| | | | | | Tested MSC Host on AM3517EVM. Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
* USB: fix create_pipe()Sergei Shtylyov2010-05-27-1/+1
| | | | | | | | | create_pipe() can give wrong result if an expression is passed as the 'endpoint' argument -- due to missing parentheses. Thanks to Martin Mueller for finding the bug and providing the patch. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
* usb: musb: add support for Blackfin MUSBBryan Wu2010-01-09-1/+2
| | | | | | | Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Remy Bohmer <linux@bohmer.net>
* DA8xx: Add MUSB host supportAjay Kumar Gupta2010-01-09-1/+1
| | | | | | | Tested USB host functionality on DA830 EVM. Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Signed-off-by: Swaminathan S <swami.iyer@ti.com>
* OMAP3 Add usb device supportTom Rix2009-12-20-1/+2
| | | | | | | | | | | | This change adds the usb device support for musb. Omap3 platform support added at the same level as davinci. The interface for usbtty to use the musb device support was added. Verified on omap3 beagle, zoom1 and zoom2. Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
* USB Consolidate descriptor definitionsTom Rix2009-12-20-61/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The header files usb.h and usbdescriptors.h have the same nameed structure definitions for usb_config_descriptor usb_interface_descriptor usb_endpoint_descriptor usb_device_descriptor usb_string_descriptor These are out right duplicates in usb.h usb_device_descriptor usb_string_descriptor This one has extra unused elements usb_endpoint_descriptor unsigned char bRefresh unsigned char bSynchAddress; These in usb.h have extra elements at the end of the usb 2.0 specified descriptor and are used. usb_config_descriptor usb_interface_descriptor The change is to consolidate the definition of the descriptors to usbdescriptors.h. The dublicates in usb.h are removed. The extra element structure will have their name shorted by removing the '_descriptor' suffix. So usb_config_descriptor -> usb_config usb_interface_descriptor -> usb_interface For these, the common descriptor elements are accessed now by an element 'desc'. As an example - if (iface->bInterfaceClass != USB_CLASS_HUB) + if (iface->desc.bInterfaceClass != USB_CLASS_HUB) This has been compile tested on MAKEALL arm, ppc and mips. Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
* usb : musb : Enabling DM6446 (TI DaVinci) USB module powerThomas Abraham2009-01-28-1/+1
| | | | | | | | | | | Enabling DM6446 (TI DaVinci) USB module power and MUSB low-level controller hook up to USB core layer. Signed-off-by: Ravi Babu <ravibabu@ti.com> Signed-off-by: Swaminathan S <swami.iyer@ti.com> Signed-off-by: Thomas Abraham <t-abraham@ti.com> Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Signed-off-by: Remy Bohmer <linux@bohmer.net>
* usb.h: use standard __LITTLE_ENDIAN from Linux headersMike Frysinger2009-01-28-2/+2
| | | | | | | | | Rather than forcing people to define a custom "LITTLEENDIAN", just use the __LITTLE_ENDIAN one from the Linux byteorder headers that every arch is already setting up. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Remy Bohmer <linux@bohmer.net>
* [PATCH] This patch add varius fix to the ehci.michael2009-01-28-1/+1
| | | | | | | | | | - fix ehci_readl, ehci_writel - introduce new define in ehci.h - introduce the handshake function for waiting on a register - fix usb_ehci_fsl with the new HC_LENGTH macro Signed-off-by: Michael Trimarchi <trimarchimichael@yahoo.it> Signed-off-by: Remy Böhmer <linux@bohmer.net>
* Prepare USB layer for ehciMichael Trimarchi2009-01-28-8/+11
| | | | | | | Prepare USB layer for ehci support Signed-off-by: Michael Trimarchi <trimarchi@gandalf.sssup.it> Signed-off-by: Remy Böhmer <linux@bohmer.net>
* USB: descriptor handlingStefan Althoefer2008-12-09-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hi, I found a bug when working with the u-boot USB subsystem on IXP425 processor (big endian Xscale aka ARMv5). I recognized that the second usb_endpoint_descriptor of the attached memory stick was corrupted. The reason for this are the packed structures below (either u-boot and u-boot-usb): -------------- /* Endpoint descriptor */ struct usb_endpoint_descriptor { unsigned char bLength; unsigned char bDescriptorType; unsigned char bEndpointAddress; unsigned char bmAttributes; unsigned short wMaxPacketSize; unsigned char bInterval; unsigned char bRefresh; unsigned char bSynchAddress; } __attribute__ ((packed)); /* Interface descriptor */ struct usb_interface_descriptor { unsigned char bLength; unsigned char bDescriptorType; unsigned char bInterfaceNumber; unsigned char bAlternateSetting; unsigned char bNumEndpoints; unsigned char bInterfaceClass; unsigned char bInterfaceSubClass; unsigned char bInterfaceProtocol; unsigned char iInterface; unsigned char no_of_ep; unsigned char num_altsetting; unsigned char act_altsetting; struct usb_endpoint_descriptor ep_desc[USB_MAXENDPOINTS]; } __attribute__ ((packed)); ------------ As usb_endpoint_descriptor is only 7byte in length, the start of all odd ep_desc[] structures is not word aligned. This makes wMaxPacketSize of these structures also not word aligned. ARMv5 Architecture however does not support non-aligned multibyte data type (see A2.8 of ARM Architecture Reference Manual). Signed-off-by: Stefan Althoefer <stefan.althoefer@web.de> Signed-off-by: Remy Böhmer <linux@bohmer.net>
* USB style patch, 80 chars strictMichael Trimarchi2008-11-28-98/+124
| | | | | | | USB Code style patch Signed-off-by: Michael Trimarchi <trimarchi@gandalf.sssup.it> Signed-off-by: Remy Böhmer <linux@bohmer.net>
* fix USB initialisation procedureRemy Bohmer2008-10-14-3/+13
| | | | | | | | | | | | | | | | | | | | | | | | | The max packet size is encoded as 0,1,2,3 for 8,16,32,64 bytes. At some places directly 8,16,32,64 was used instead of the encoded value. Made a enum for the options to make this more clear and to help preventing similar errors in the future. After fixing this bug it became clear that another bug existed where the 'pipe' is and-ed with PIPE_* flags, where it should have been 'usb_pipetype(pipe)', or even better usb_pipeint(pipe). Also removed the triple 'get_device_descriptor' sequence, it has no use, and Windows nor Linux behaves that way. There is also a poll going on with a timeout when usb_control_msg() fails. However, the poll is useless, because the flag will never be set on a error, because there is no code that runs in a parallel that can set this flag. Changed this to something more logical. Tested on AT91SAM9261ek and compared the flow on the USB bus to what Linux is doing. There is no difference anymore in the early initialisation sequence. Signed-off-by: Remy Bohmer <linux@bohmer.net> Signed-off-by: Markus Klotzbuecher <mk@denx.de>
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