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* usb-serial: clean up unneeded PM-related fieldsAlan Stern2012-05-077-24/+0
| | | | | | | | | | | | | | | This patch (as1551) cleans up the PM-related entries in the usb_driver structures of the various USB serial driver modules. Those entries are now filled in by the usb-serial core during driver registration, so they don't need to be initialized explicitly in the source code. The same is true of the one remaining no_dynamic_id entry. reset_resume remains a small problem, because the serial core doesn't support it. The patch ignores these entries. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb-serial: ftdi_sio: fix oops during autosuspendAlan Stern2012-05-071-2/+7
| | | | | | | | | | | | | | | | | | | | | | | This patch (as1550) fixes a bug in the usb-serial core that affects the ftdi_sio driver and most likely others as well. The core implements suspend and resume routines, but it doesn't store pointers to those routines in the usb_driver structures that it registers, even though it does set those drivers' supports_autosuspend flag. The end result is that when one of these devices is autosuspended, we try to call through a NULL pointer. The patch fixes the problem by setting the suspend and resume method pointers to the appropriate routines in the USB serial core, along with the supports_autosuspend field, in each driver as it is registered. This should be back-ported to all the stable kernels that have the new usb_serial_register_drivers() interface. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-and-tested-by: Frank Schäfer <schaefer.frank@gmx.net> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'dwc3-for-v3.5' of ↵Greg Kroah-Hartman2012-05-078-84/+323
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next usb: dwc3: patches for v3.5 merge window This pull request contains one workaround for a Silicon Issue found on all RTL releases prior to 2.20a, which would cause a metastability state on Run/Stop bit. We also have some patches implementing a few extra Standard requests introduced by USB3 spec (Set SEL and Set Isoch Delay), as well as one patch, which has been pending for a long time, implementing LPM support. Last, but not least, we are splitting the host address space out of the dwc3 core driver otherwise xHCI won't be able to request_mem_region() its own address space. This patch is only needed because we are (as we should) re-using the xHCI driver, which is a completely separate module. Together with these three big changes, come a few extra preparatory patches which most move code around, define macros and so on, as well as a fix for Isochronous transfers which hasn't been triggered before. [ resolved conflicts and build error in drivers/usb/dwc3/gadget.c - gregkh]
| * usb: dwc3: define DWC3_EP0_BOUNCE_SIZEFelipe Balbi2012-05-042-6/+8
| | | | | | | | | | | | | | | | to avoid sprinkling magic constants on the driver we define a constant to be used when allocating setup_buffer and ep0_bounce buffer. Signed-off-by: Felipe Balbi <balbi@ti.com>
| * usb: dwc3: gadget: issue Update Transfer command after queuing isoc requestPaul Zimmerman2012-05-021-17/+28
| | | | | | | | | | | | | | | | | | | | | | Issue an Update Transfer command after queuing a request to an isoc EP with an active transfer. This is required according to the dwc3 databook. Pratyush Anand reports that this fixes a problem he was having with Isoc IN transfers. Tested-by: Pratyush Anand<pratyush.anand@st.com> Signed-off-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * usb: dwc3: ep0: implement support for Set Isoch Delay requestFelipe Balbi2012-05-022-0/+28
| | | | | | | | | | | | | | | | | | This is basically a noop for DWC3. We don't have to do anything. Basically we test if the request parameters are correct, cache the Isochronous Delay and return success. Signed-off-by: Felipe Balbi <balbi@ti.com>
| * usb: dwc3: gadget: increase setup buffer sizeFelipe Balbi2012-05-021-2/+1
| | | | | | | | | | | | | | | | | | We want to re-use that buffer for other USB requests, so let's increase it to biggest wMaxPacketSize for ep0 so it works for everything we have in mind. Signed-off-by: Felipe Balbi <balbi@ti.com>
| * usb: dwc3: ep0: implement Set SEL supportFelipe Balbi2012-05-022-0/+93
| | | | | | | | | | | | | | | | | | This patch implements Set SEL Standard Request support for dwc3 driver. It needs to issue a command to the controller passing the timing we received on the data phase of the Set SEL request. Signed-off-by: Felipe Balbi <balbi@ti.com>
| * usb: dwc3: gadget: implement Global Command supportFelipe Balbi2012-05-023-2/+32
| | | | | | | | | | | | | | This will be used by the ep0 layer for implementing Set SEL Standard Request. Signed-off-by: Felipe Balbi <balbi@ti.com>
| * usb: dwc3: ep0: add LPM handlingSebastian Andrzej Siewior2012-04-303-11/+45
| | | | | | | | | | | | | | | | | | | | On device loading the driver enables LPM and the acceptance of U1 and U2 states. The [Set|Clear]Feature requests for "U1/U2" are forwarded directly to the hardware and allow / forbid the initiation of the low power links. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * usb: dwc3: core: split host address spaceIdo Shayevitz2012-04-244-35/+46
| | | | | | | | | | | | | | | | | | This fix prevents a problem with dwc3 and host mode where we were requesting the entire memory region in dwc3/core.c, thus preventing xhci-plat from ever ioremapping its own address space. Signed-off-by: Ido Shayevitz <idos@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * usb: dwc3: omap: add dwc3_omap_readl/writel functionsIdo Shayevitz2012-04-241-11/+21
| | | | | | | | | | | | | | | | | | We separate between dwc3-omap helper functions to dwc3-core helper functions. This will allow us to change the helper functions implementation according to each module need. Signed-off-by: Ido Shayevitz <idos@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * usb: dwc3: workaround: metastability state on Run/Stop bitFelipe Balbi2012-04-111-1/+18
| | | | | | | | | | | | | | | | | | | | | | | | All revisions prior to 2.20a have a known issue which causes metastability state on Run/Stop bit if we configure the core to work on any of the USB2-only speeds. The suggested workaround is just to never configure the core to anything other than SuperSpeed. Signed-off-by: Felipe Balbi <balbi@ti.com>
| * usb: dwc3: core: define more revision macrosFelipe Balbi2012-04-111-0/+4
| | | | | | | | | | | | | | | | We have other revisions already released, let's define revision macros for those so we can do runtime detection of known erratas. Signed-off-by: Felipe Balbi <balbi@ti.com>
* | Merge tag 'musb-for-v3.5' of ↵Greg Kroah-Hartman2012-05-074-2/+722
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next usb: musb: patches for v3.5 merge window MUSB has only two patches for this merge window adding support for TI's TI81xx platforms which contains two MUSB IP instances. Nothing scary here, just yet another glue layer for MUSB.
| * | usb: musb: enable support for am335xAjay Kumar Gupta2012-05-041-2/+2
| | | | | | | | | | | | | | | | | | | | | Enabled the flag so that musb_dsps glue file can be used for am335x Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | usb: musb: Add support for ti81xx platformAjay Kumar Gupta2012-05-044-2/+722
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TI81XX platform has two musb interfaces and uses CPPI4.1 DMA engine. It has builtin USB PHYs as AM35x. The current set of patches adds support for one instance and only in PIO mode. [ balbi@ti.com : make it compile and solve a "may be used uninitialized" warning ] Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Signed-off-by: Ravi Babu <ravibabu@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
* | | Merge tag 'gadget-for-v3.5' of ↵Greg Kroah-Hartman2012-05-0750-1754/+2211
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next usb: gadget: patches for v3.5 This pull request is quite big, but mainly because there's a giant rework of the s3c_hsotg.c driver to make it friendlier for other users. Samsung Exynos platforms use the DesignWare Core USB2 IP from Synopsys so it's a bit unfair to have the driver work for Samsung platforms only. In short, the big rework is in preparation to make the driver more reusable. Another big rework in this pull request came from Ido, where he's removing the redundant pointer for the endpoint descriptor from the controller driver's own endpoint representation. The same pointer is available through the generic struct usb_ep structure. Also on this pull request is the conversion of a few extra controller drivers to the new style registration, which allows multiple controllers to be available on the same platform and helps remove global pointers from those drivers. Together with those big changes, there's the usual fixes and cleanups to gadget drivers. Nothing major.
| * | | usb:hsotg:samsung: err_irq: support for probe functionLukasz Majewski2012-05-041-8/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Missing handler for freeing requested IRQ added. Moreover clk_ calls has been reorganized. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: Use clk_prepare_enable and clk_disable_unprepareLukasz Majewski2012-05-041-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit adjust the s3c-hsotg to new clock API. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: Remove the S3C_ prefix from registers definition.Lukasz Majewski2012-05-042-677/+675
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This code removes the S3C_ prefix from s3c-hsotg driver. This change provides more architecture independent code. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: Add release function for hsotg deviceLukasz Majewski2012-05-041-1/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add release function to prevent kernel warning. Kfree is performed when all references are gone. Signed-off-by: Sangwook Lee <sangwook.lee@linaro.org> Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: Remove our_hsotg global pointerLukasz Majewski2012-05-041-5/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The our_hsotg global pointer to hsotg USB device state is removed. It has been replaced with to_hsotg(gadget) function. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: Comments reorganization and cleanupLukasz Majewski2012-05-041-122/+252
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Refactor all comments to comply with kernel codding style. Moreover doxygen descriptions have been added for selected functions. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: Use new udc_start and udc_stop callbacksLukasz Majewski2012-05-041-25/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace of deprecated start and stop callbacks with a udc_start and udc_stop ones. Now the bind from composite driver is NOT called explicitly, so more work needs to be done at s3c_udc_probe. Especially enabling SoC clocks and power for runtime determination of EP number. After probing, those sources are disabled and enabled again at udc_start and pullup afterwards. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Sangwook Lee <sangwook.lee@linaro.org> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: Determine number of EPs from HW configuration registerLukasz Majewski2012-05-041-67/+100
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit adds support for determining of EPs number during run time. Configuration is read from a HW configuration register in a specially created s3c_hsotg_hw_cfg function. Moreover it was necessary to defer at probe allocation of the struct s3c_hsotg_ep instances until number of endpoints is known. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: Cable disconnection recovery codeLukasz Majewski2012-05-041-10/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This code allows Samsung SoC's to recover its state when device is disconnected and connected during transfer. It is necessary, in such a scenario, to reinitialize the USB core to assure correct initial state of the driver. This operation is needed since the disconnect interrupt is only available at HOST mode, which is not supported by this driver. A simple mechanism with jiffies has been used to perform core reset only once. Tested with: - DFU gadget (various size of the sent data - also packet = MPS) - Ethernet gadget (CDC and RNDIS) - Multi Function Gadget (g_multi) HW: - Samsung's C210 Universal rev.0 Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: Rename s3c_hsotg_disconnect functionLukasz Majewski2012-05-041-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The s3c_hsotg_disconnect_irq function has been renamed to reflect, that it can be used not only during the host disconnect irq. The s3c_hsotg_disconnect shall be used as a fall back for scenario when USB cable is unplugged and plugged to the device. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: Remove Disconnect Interrupt handlerLukasz Majewski2012-05-041-10/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The USB Disconnect Interrupt handler, according to specification, is only working at HOST mode. Samsung SoCs (e.g. Exynos4) are working at device mode, so this interrupt is never caught. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: Extract core initialization functionLukasz Majewski2012-05-041-161/+173
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The s3c_hsotg_core_init function has been added to exclude code responsible for Samsung's SoCs USB core initialization. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: Sending ZLP packet for IN EP0 transfersLukasz Majewski2012-05-041-2/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit targets following scenarios for IN requests: 1. HOST requests e.g. 256B (which is a multiple of MPS = 64B). Then NO ZLP shall be sent, since host expects exact number of bytes. 2. HOST requested 4096B, but our data for sending is 256B. In this situation ZLP shall be send to tell HOST that no more data is available and it shall not wait for more data. This prevents HOST from hanging. Tested with: - DFU gadget (various size of the sent data - also packet = MPS) - Ethernet gadget (CDC and RNDIS) - Multi Function Gadget (g_multi) HW: - Samsung's C210 Universal rev.0 - Samsung's C110 GONI Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: NAK management for EP0 (Setup stage of control transfers)Lukasz Majewski2012-05-041-2/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For SETUP stage of USB control transmission, the NAK shall NOT be CLEAR. The SNAK/CNAK control is crucial for this type of driver, since data arrives to earlier defined requests. Tested with: - DFU gadget (various size of the sent data - also packet = MPS) - Ethernet gadget (CDC and RNDIS) - Multi Function Gadget (g_multi) HW: - Samsung's C210 Universal rev.0 Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: Use of regulator_bulk_* functions for USB regulatorsLukasz Majewski2012-05-041-2/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit adds support for supply voltage management for s3c-hsotg IP block. For that purpose a convenient regulator_bulk_* functions have been used. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Liam Girdwood <lrg@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: Wrappers for USB PHY methodsLukasz Majewski2012-05-041-5/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Wrappers for PHY methods have been added for readability and reduction of code repetition. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: Remove platform dependent functions from s3c-hsotgLukasz Majewski2012-05-041-77/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Two functions - namely: s3c_hsotg_gate and s3c_hsotg_otgreset are platform dependent and therefore removed from Samsung's generic s3c-hsotg code. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb:hsotg:samsung: Remove platform dependency from s3c-hsotgLukasz Majewski2012-05-042-2/+381
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This code removes platform dependency from s3c-hsotg driver. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | f_fs: ffs_func_free: cleanup requests allocated by autoconfigPeter Korsgaard2012-05-041-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | functionfs was leaking request objects created by autoconfig. Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb: gadget: add isochronous support to gadget zeroPaul Zimmerman2012-05-044-65/+387
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add two isochronous endpoints to the gadget zero source/sink function. They are enabled by selecting alternate interface 1, so by default they are not enabled. Module parameters for setting all the isoc endpoint characteristics are also provided. Signed-off-by: Pratyush Anand <pratyush.anand@st.com> Signed-off-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb: gadget: add a sparse endian notationDan Carpenter2012-05-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The original code works fine, but Sparse complains because it isn't annotated properly. drivers/usb/gadget/composite.c:793:26: warning: incorrect type in assignment (different base types) drivers/usb/gadget/composite.c:793:26: expected unsigned short [unsigned] [usertype] language devel/drivers/usb/gadget/composite.c:793:26: got restricted __le16 [usertype] <noident> devel/drivers/usb/gadget/composite.c:795:29: warning: restricted __le16 degrades to integer drivers/usb/gadget/composite.c:798:24: warning: incorrect type in assignment (different base types) drivers/usb/gadget/composite.c:798:24: expected restricted __le16 [usertype] <noident> devel/drivers/usb/gadget/composite.c:798:24: got unsigned short [unsigned] [usertype] language Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb: gadget: r8a66597-udc: add support for set_selfpoweredShimoda, Yoshihiro2012-05-042-1/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The previous code always set to USB_DEVICE_SELF_POWERED in GET_STATUS. So, this patch adds set_selfpowered(). Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb: gadget: Include i.MX processors in the USB_FSL_USB2 help textFabio Estevam2012-05-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | USB_FSL_USB2 driver can be used on PowerPC and i.MX processors. Include i.MX processors in the USB_FSL_USB2 help text. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb: gadget: fsl_udc_core: dTD's next dtd pointer need to be updated once ↵Peter Chen2012-05-041-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | written dTD's next dtd pointer need to be updated once CPU writes it, or this request may not be handled by controller, then host will get NAK from device forever. This problem occurs when there is a request is handling, we need to add a new request to dTD list, if this new request is added before the current one is finished, the new request is intended to added as next dtd pointer at current dTD, but without wmb(), the dTD's next dtd pointer may not be updated when the controller reads it. In that case, the controller will still get Terminate Bit is 1 at dTD's next dtd pointer, that means there is no next request, then this new request is missed by controller. CC: <stable@vger.kernel.org> Signed-off-by: Peter Chen <peter.chen@freescale.com> Acked-by: Li Yang <leoli@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb: gadget: composite: prevent a memory leak when configuration bind failsYongsul Oh2012-05-041-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In some USB composite gadget drivers, the configuration's bind function called by the usb_add_config() calls multiple bind config functions. (for example cdc2 configuration bind function in the cdc_do_config() of the cdc2.c has two functionality bind config functions. - the ecm_bind_config() & the acm_bind_config()) In each functionality bind config function, new instance is allocated and finally added by the usb_add_function(). So if an error occurred during the second functionality bind config (for example an error occurred at the acm_bind_config() after succeeding of the ecm_bind_function()), the instance created by the acm_bind_config() cannot be freed creating a memory leak. This patch fixes this issue. Signed-off-by: Yongsul Oh <yongsul96.oh@samsung.com> Acked-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb: gadget: f_mass_storage: remove deprecated fsg_add()Michal Nazarewicz2012-05-041-7/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are no in-tree fsg_add() users and it has been deprecated since 2.6.35 [1dc90985d1: fsg_add() renamed to fsg_bind_config()] so out-of-tree users had more then enough time to convert. Removing. Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb: renesas_usbhs: gadget: add support for set_selfpoweredShimoda, Yoshihiro2012-05-041-1/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The previous code always set to USB_DEVICE_SELF_POWERED in GET_STATUS. So, this patch adds set_selfpowered(). Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb: gadget: dummy_hcd: allow to free requests on disabled endpointsSebastian Andrzej Siewior2012-05-041-5/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ep->desc is set to NULL on endpoint disable. That means once an endpoint is disabled it is not possible to free requests. In my target gadget I first disable endpoints to make sure I have no requests on the fly and then free frequests. On dummy I am leaking memory here. Since I can't imagine a reason why it should be a bad thing, lets allow to free requests on disabled endpoints. On removal of composite the ep0 request is removed so lets allow that here as well. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb: gadget: make g_printer use compositeSebastian Andrzej Siewior2012-05-041-350/+97
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch converts the g_printer to make use of the compoiste framework for descriptor parsing instead of its own implementation of it. This gadget contains now one function which is the printer gadget. Compile tested only. Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb: gadget: remove DUALSPEED from printerSebastian Andrzej Siewior2012-05-041-24/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the DUALSPEED macro and makes the HS (and FS) case the default. This is one little step before composite can be used for descriptor management. Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb: gadget: imx_udc: convert to new style start/stopSebastian Andrzej Siewior2012-05-041-37/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patches converts the driver into the new style start/stop interface. As a result the driver no longer uses the static global controller variable in start/stop code. I kept the gloval controller variable because it keeps init simple. Compile tested only. Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Felipe Balbi <balbi@ti.com>
| * | | usb: gadget: fsl_qe_udc: remove not implemented callbacksSebastian Andrzej Siewior2012-05-041-42/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All of this callbacks which I remove here are not implemented and return an error code. The gadget code returns an error code if a callback is missing so there is no need to implement this twice. Cc: Li Yang <leoli@freescale.com> Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Felipe Balbi <balbi@ti.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 14:43:16 +0000