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* FunctionFS: enable multiple functionsAndrzej Pietrasiewicz2012-05-142-31/+207
| | | | | | | | Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Michal Nazarewicz <mina86@mina86.com> Cc: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: remove langwell_udcAlexander Shishkin2012-05-114-3659/+0
| | | | | | | | We have the chipidea driver now that supports both langwell and penwell, so there is no need for this one any more. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: move ci13xxx and related code to drivers/usb/chipideaAlexander Shishkin2012-05-116-3559/+0
| | | | | | | | | | | | | Since chipidea is a dual role controller, it makes sense to move it to its own directory, where we can also have host, otg and platform code related to this controller. It also makes sense to break out the driver into several compilation units like udc, host, debugging code, etc. Firstly, let's move the udc and platform code to drivers/usb/chipidea. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: ci13xxx: print basic device info when probingAlexander Shishkin2012-05-111-0/+3
| | | | | | | | Report basic information about capabilities and register addresses on probe. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: ci13xxx: don't use "advance" feature when setting addressAlexander Shishkin2012-05-112-10/+14
| | | | | | | | | | | | | | | | Newer versions of the chipidea controller support the "advance" setting of usb address, which means instead of setting it immediately, deferring it till the status completion. Unfortunately, older versions of the controller don't have this feature, so in order to support those too, we simply don't use it. It's about 4 lines of extra code, and isn't in any way critical to performance. While at it, change the return value of the hw_usb_set_address() to void, since it can't fail in any measurable way. With this patch, ci13xxx_udc driver works with the chipidea controller in kirkwood (feroceon SoC), as found in, for example, sheevaplug. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: ci13xxx: fix the context of register mapAlexander Shishkin2012-05-111-1/+1
| | | | | | | | The regmap field is an array of register pointers, not the other way around. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: ci13xxx: get rid of local tracing for goodAlexander Shishkin2012-05-112-82/+0
| | | | | | | There is no point in having tracing output in the kernel these days. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: ci13xxx_pci: guard against devices without driver_dataAlexander Shishkin2012-05-111-0/+5
| | | | | | | | | Don't try to initialize devices that don't have driver_data assigned to their pci ids. Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: dummy_hcd: fix build when BUG is not setSasha Levin2012-05-111-1/+1
| | | | | | | | Use WARN_ON() instead of __WARN, which also means we won't use any internal macros. Signed-off-by: Sasha Levin <levinsasha928@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: f_rndis: Set rndis vendor parametersBenoit Goby2012-05-102-21/+33
| | | | | | | | | | | | Add a variant of rndis_bind_config to let gadget drivers change rndis vendorID and manufacturer parameters. Signed-off-by: Benoit Goby <benoit@android.com> [make rndis_bind_config a static inline function] Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: rndis: Fix re-binding f_rndisBenoit Goby2012-05-101-0/+1
| | | | | | | | | | | | | | | | | | | | | | f_rndis checks if rndis_string_defs[0].id is null to setup rndis and allocate string ids when it is bound to the first configuration: /* maybe allocate device-global string IDs */ if (rndis_string_defs[0].id == 0) { /* ... and setup RNDIS itself */ status = rndis_init(); if (status < 0) return status; rndis_string_defs[0].id must be reset to 0 on unbind for rndis to be correctly initialized on the next composite_bind. Signed-off-by: Benoit Goby <benoit@android.com> Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: Add variant of gether_setup to customize the device nameMike Lockwood2012-05-102-4/+25
| | | | | | | | | | | | | | This is needed to avoid name collisions on SoCs that have both usb gadget and usb host, where usb0 may be the rndis interface or a usb ethernet adapter. Signed-off-by: Mike Lockwood <lockwood@android.com> Signed-off-by: Benoit Goby <benoit@android.com> [make gether_setup a static inline function] Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: u_serial: Allow calling gserial_setup after initBenoit Goby2012-05-101-2/+2
| | | | | | | | | | | | Remove geserial_setup from the init section. The android gadget driver calls it after probe, after userspace has configured the gadget driver. Signed-off-by: Benoit Goby <benoit@android.com> Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: composite: add iSerialNumber to usb_composite_driverAndrzej Pietrasiewicz2012-05-101-2/+3
| | | | | | | | | | | | | Add iSerialNumber to usb_composite_driver to allow setting a default value. This is useful when the module is compiled-in. Then the composite_bind is executed at kernel boot and string id for iSerialNumber can be overridden even if there is no iSerialNumber kernel commandline parameter. If the string id is not overridden, then get_string will never attempt to look for the alternative string contents using cdev->serial_override. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: composite: make module parameters accessible at runtimeAndrzej Pietrasiewicz2012-05-101-6/+12
| | | | | | | | | Enable module parameters to be modified at runtime, especially if the module is compiled-in. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: composite: Initialize config->interfaceBenoit Goby2012-05-101-0/+1
| | | | | | | | | | | Reset config->interface in usb_add_config, as it may contain pointers to functions from a previous session if config is removed and re-added. Signed-off-by: Benoit Goby <benoit@android.com> Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: composite: Add usb_remove_configBenoit Goby2012-05-101-20/+48
| | | | | | | | | | | | | | | | | | | Add usb_remove_config to unbind a configuration and remove it from the configs list. This allows implementing composite gadget drivers that can disconnect themself from the bus and that will later be re-enumerated with a different configuration. Gadget drivers must call usb_gadget_disconnect before calling this function to disable the pullup, disconnect the device from the host, and prevent the host from enumerating the device while we are changing the gadget configuration. Signed-off-by: Benoit Goby <benoit@android.com> [change return type of [usb_]remove_config] Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: gadget: ci13xx_pci: remove unneeded check in ci13xxx_pci_probe()Greg Kroah-Hartman2012-05-101-3/+0
| | | | | | | | | | | | | As pointed out by Dan Carpenter, the check for NULL for the id variable is no longer needed, especially as we just dereferenced it a few lines earlier, causing an oops if it really was NULL. This was caused by 62bb84ed0e4d: "usb: gadget: ci13xxx: convert to platform device". Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: gadget: ci13xx_udc: fix potential crash in irq handlerGreg Kroah-Hartman2012-05-101-3/+1
| | | | | | | | | | | | | | | | As pointed out by Dan Carpenter, we should not be trying to call dev_err() on a structure that was previously determined to be NULL, that's just foolish and asking for trouble. So just delete the message, it's not going to do anyone any good to have it anyway. This problem was caused by 0f089094cde5: "usb: gadget: ci13xxx: replace home-brewed logging with dev_{err,warn,info}" Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb:hsotg:samsung:cosmetic Move <linux/platform_data/s3c-hsotg.h> to proper ↵Lukasz Majewski2012-05-091-1/+1
| | | | | | | | | | | place This commit adds a cosmetic change to the s3c-hsotg UDC driver. It moves s3c-hsotg.h to other linux/ related inclusions. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: ci13xxx: convert to new styleAlexander Shishkin2012-05-091-81/+39
| | | | | | | | Finally, convert to the new style framework, using udc_start/udc_stop methods. Since there is no need in the global _udc pointer, remove it. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: ci13xxx: move endpoint (de-)initialization to probe/removeAlexander Shishkin2012-05-091-81/+80
| | | | | | | | | | | Currently, endpoints are initialized in gadget start/stop methods, however for the new style gadgets it is expected that bind() can be called before controller's start(), and we need endpoints already initialized at that point. So, move endpoint initialization to controller's probe before we switch to the "new style" gadget framework. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: ci13xxx: replace home-brewed logging with dev_{err,warn,info}Alexander Shishkin2012-05-092-109/+87
| | | | | | | | | | | | | | | Logging output in the driver is mostly done using custom err/warn/info macros which rely on the existence of the global variable _udc, which is a global reference to the udc controller structure. This reference will have to go in order to allow us to have more than one chipidea udc in the system. Thus, replace custom macros with dev_{err,warn,info} using the platform device where possible. The trace() macro, which is a nop by default is left for tracing purposes. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: ci13xxx: convert to platform deviceAlexander Shishkin2012-05-096-102/+180
| | | | | | | | | | | | Let's break ci13xxx driver into a separate udc driver and platform drivers _pci and _msm, which will create a platform device for each pci (or msm) device found. The approach was introduced by Felipe in dwc3 driver and there seems to be no reason not to use it. msm related code is only compile-tested. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: conversion of controllers choice to menuAlexander Shishkin2012-05-091-8/+2
| | | | | | | | After the UDC class conversion, there is no reason to limit the kernel to have only one UDC controller in the system. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: ci13xxx: redo register accessAlexander Shishkin2012-05-092-128/+191
| | | | | | | | | | | Use lookup table instead of conditional macrodefinitions of register addresses. With two different possible register layouts and different register offsets, it's easiest to build a table with register addresses at probe time, based on the information supplied from the platform and device capabilities. This way we get rid of branch-per-register-access. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: ci13xxx: move global variables inside struct ci13xxxAlexander Shishkin2012-05-092-232/+244
| | | | | | | | Make global variables that are specific for each UDC instance part of struct ci13xxx. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: ci13xxx: drop needless parensAlexander Shishkin2012-05-092-8/+8
| | | | | | | Small and self-evident cleanup. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: ci13xxx_pci: add langwell/penwell pci idsAlexander Shishkin2012-05-081-0/+2
| | | | | | | Add pci ids for ChipIdea UDC as found in langwell/penwell SoCs. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: ci13xxx: rename register layoutsAlexander Shishkin2012-05-084-133/+132
| | | | | | | | | | | | | | | | | | | | | | Currently, the register prefixes in the driver seem to be mixed: the capability registers are the ones that contain capability information, such as number of hardware endpoints, while the registers that are used to program the controller are called operational registers. Normally, capability registers start at 0x100 offset of the register window and are followed by operational registers. In some versions, however, capability registers start at 0x0 offset. This patch renames the register and adjusts their offsets appropriately, leaving the possibility of having a non-standard capability offset. I couldn't find any mentions of the TESTMODE register anywhere, so I suspect it might only be enabled in chipidea internal versions of the controller and I'm really inclined to remove it from the driver or at least hiding it behind a config option. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: ci13xxx: initialize ep0{out,in} dynamicallyAlexander Shishkin2012-05-082-21/+30
| | | | | | | | Change ep0{out,in} macros into dynamically assigned pointers in gadget initialization time. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: ci13xxx: fix ep list removal in gadget unregistering codeAlexander Shishkin2012-05-081-1/+1
| | | | | | | | | Since ep0{out,in} are never on gadget's ep_list, there's no need to try to unlink them, even more so because ep_list linkage is not initialized for these endpoints. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'gadget-for-v3.5' of ↵Greg Kroah-Hartman2012-05-0746-1732/+2174
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-14 10:58:24 +0000