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path: root/drivers/usb/gadget/f_uac2.c
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* USB: gadget: f_uac2: Fix broken prm to uac2 mappingJassi Brar2013-06-101-14/+6
| | | | | | | | | | | prm_to_uac2() is broken because it tests against pointer it itself mapped onto, which will never be different. Fix the mapping by adding pointer to parent chip in each rtd param and removing the prm_to_uac2(). Reported-by: Julien Rouviere <jrouviere@qualistream.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: gadget: f_uac2: Remove redundant platform_set_drvdata()Sachin Kamat2013-05-151-2/+0
| | | | | | | | | | Commit 0998d06310 (device-core: Ensure drvdata = NULL when no driver is bound) removes the need to set driver data field to NULL. Acked-by: Jaswinder Singh <jaswinder.singh@linaro.org> Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: gadget: f_uac2: fix compile warningFelipe Balbi2013-01-211-1/+0
| | | | | | | | this warning was introduced by previous patches, fix it. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: gadget: remove unused variable in uac2_pcm_trigger()Wei Yongjun2013-01-101-6/+2
| | | | | | | | The variable ep is initialized but never used otherwise, so remove the unused variable. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: remove use of __devinitBill Pemberton2012-11-211-1/+1
| | | | | | | | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Felipe Balbi <balbi@ti.com> Cc: Li Yang <leoli@freescale.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: Geoff Levand <geoff@infradead.org> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Olav Kongas <ok@artecdesign.ee> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: let f_* use usb_string_ids_tab() where it makes senseSebastian Andrzej Siewior2012-10-311-84/+16
| | | | | | | | | | | | | Instead of calling usb_string_id() multiple times I replace it with one usb_string_ids_tab(). The NULL pointer in struct usb_string with "" and are not overwritten in fail or unbind case. The conditional assignment remains because some gadgets recycle the string ID because the same descriptor (and string ID) is used if we have more than one config descriptor. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: gadget: uac2: use the strings directlySebastian Andrzej Siewior2012-10-311-20/+10
| | | | | | | | There is no need for this variable in between. Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: gadget: uac2: provide a variable for interface and alt settingsSebastian Andrzej Siewior2012-10-311-27/+23
| | | | | | | | | | | | | | | | | | This patch removes the shifting and masking of interface and its alt setting and provides its own variable. This looks better and is smaller: text data bss dec hex filename x86-32 6940 956 56 7952 1f10 gadget/audio.o.old 6908 956 56 7920 1ef0 gadget/audio.o.new arm 7914 956 56 8926 22de gadget/audio.o.old 7886 956 56 8898 22c2 gadget/audio.o.new Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: gadget: remove DMA_ADDR_INVALID from f_uac2 and gadgetfsSebastian Andrzej Siewior2012-10-311-3/+0
| | | | | | | | | DMA_ADDR_INVALID is used by the UDC driver and the gadgets should provide only a buffer address. Everything else should be taken core of by the UDC and udc-core. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: gadget: always update HS/SS descriptors and create a copy of themSebastian Andrzej Siewior2012-10-311-11/+5
| | | | | | | | | | | | | | | | | | | | | | | | HS and SS descriptors are staticaly created. They are updated during the bind process with the endpoint address, string id or interface numbers. After that, the descriptor chain is linked to struct usb_function which is used by composite in order to serve the GET_DESCRIPTOR requests, number of available configs and so on. There is no need to assign the HS descriptor only if the UDC supports HS speed because composite won't report those to the host if HS support has not been reached. The same reasoning is valid for SS. This patch makes sure each function updates HS/SS descriptors unconditionally and uses the newly introduced helper function to create a copy the descriptors for the speed which is supported by the UDC. While at that, also rename f->descriptors to f->fs_descriptors in order to make it more explicit what that means. Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: gadget: uac2: add some error recovery in afunc_bind()Sebastian Andrzej Siewior2012-10-311-3/+22
| | | | | | | | In case something goes wrong here, don't leak memory / endpoints. Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: gadget: remove __devexit in f_uac2Sebastian Andrzej Siewior2012-09-101-1/+1
| | | | | | | | | | | | | | | | avoids the following section missmatch |WARNING: drivers/usb/gadget/g_audio.o(.init.text+0x2e7): Section |mismatch in reference from the function afunc_bind() to the function |.devexit.text:snd_uac2_remove() |The function __init afunc_bind() references |a function __devexit snd_uac2_remove(). |This is often seen when error handling in the init function |uses functionality in the exit path. |The fix is often to remove the __devexit annotation of |snd_uac2_remove() so it may be used outside an exit section. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
* usb: gadget: Add Audio Class 2.0 DriverJassi Brar2012-02-151-0/+1449
This is a flexible USB Audio Class 2.0 compliant gadget driver that implements a simple topology with a virtual sound card exposed at the function side. The driver doesn't expect any real audio codec to be present on the function - the audio streams are simply sinked to and sourced from a virtual ALSA sound card created. The user-space application may choose to do whatever it wants with the data received from the USB Host and choose to provide whatever it wants as audio data to the USB Host. Capture(USB-Out) and Playback(USB-In) can be run at independent configurations specified via module parameters while loading the driver. Make this new version as the default selection by a new Kconfig choice. Signed-off-by: Yadi Brar <yadi.brar01@gmail.com> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
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