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path: root/drivers/media/platform/omap/omap_vout_vrfb.c
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2022-03-18media: platform: rename omap/ to ti/omap/Mauro Carvalho Chehab
As the end goal is to have platform drivers split by vendor, rename omap/ to ti/omap/. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Peter Ujfalusi <peter.ujfalusi@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2021-10-08media: omap_vout: use dma_addr_t consistentlyArnd Bergmann
gcc notices that the driver mixes 'dma_addr_t' 'u8 *' and 'u32' to store DMA addresses: drivers/media/platform/omap/omap_vout.c: In function 'omap_vout_vb2_prepare': drivers/media/platform/omap/omap_vout.c:979:37: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] vout->queued_buf_addr[vb->index] = (u8 *)buf_phy_addr; ^ drivers/media/platform/omap/omap_vout.c: In function 'omap_vout_create_video_devices': drivers/media/platform/omap/omap_vout.c:1479:21: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] vout->fbuf.base = (void *)info.paddr; Use dma_addr_t everywhere here to avoid the type conversions and document what the address is used for. Assigning to vout->fbuf.base still requires a cast, since that is part of the driver independent data structure. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Peter Ujfalusi <peter.ujfalusi@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2019-09-17Merge tag 'media/v5.4-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - a new sensor driver for ov5675 - a new platform driver for Allwinner A10 sensor interface - some new remote controller keymaps - some cosmetic changes at V4L2 core in order to avoid #ifdefs and to merge two core modules into one - removal of bcm2048 radio driver from staging - removal of davinci_vpfe video driver from staging - regression fix since Kernel 5.1 at the legacy VideoBuffer version 1 core - added some documentation for remote controller protocols - pixel format documentation was split on two files - lots of other driver improvements and cleanups * tag 'media/v5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (321 commits) media: videobuf-core.c: poll_wait needs a non-NULL buf pointer media: sun4i: Make sun4i_csi_formats static media: imx: remove unused including <linux/version.h> media: stm32-dcmi: Delete an unnecessary of_node_put() call in dcmi_probe() media: pvrusb2: qctrl.flag will be uninitlaized if cx2341x_ctrl_query() returns error code media: em28xx: Fix exception handling in em28xx_alloc_urbs() media: don't do a 31 bit shift on a signed int media: use the BIT() macro media: ov9650: add a sanity check media: aspeed-video: address a protential usage of an unitialized var media: vicodec: make life easier for static analyzers media: remove include stdarg.h from some drivers v4l2-core: fix coding style for the two new c files media: v4l2-core: Remove BUG() from i2c and spi helpers media: v4l2-core: introduce a helper to unregister a i2c subdev media: v4l2-core: introduce a helper to unregister a spi subdev media: v4l2-core: move i2c helpers out of v4l2-common.c media: v4l2-core: move spi helpers out of v4l2-common.c media: v4l2-core: Module re-organization media: usbvision: Remove dead code ...
2019-08-13media: omap_vout: convert to vb2Hans Verkuil
Convert omap_vout to the vb2 framework. After this change 'v4l2-compliance -s' passes all tests. As usual, this vb2 conversion is a 'big bang' patch and hard to read. Tested on a Pandaboard and a Beagle XM board. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-08-09omap-dma/omap_vout_vrfb: fix off-by-one fi valueHans Verkuil
The OMAP 4 TRM specifies that when using double-index addressing the address increases by the ES plus the EI value minus 1 within a frame. When a full frame is transferred, the address increases by the ES plus the frame index (FI) value minus 1. The omap-dma code didn't account for the 'minus 1' in the FI register. To get correct addressing, add 1 to the src_icg value. This was found when testing a hacked version of the media m2m-deinterlace.c driver on a Pandaboard. The only other source that uses this feature is omap_vout_vrfb.c, and that adds a + 1 when setting the dst_icg. This is a workaround for the broken omap-dma.c behavior. So remove the workaround at the same time that we fix omap-dma.c. I tested the omap_vout driver with a Beagle XM board to check that the '+ 1' in omap_vout_vrfb.c was indeed a workaround for the omap-dma bug. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Link: https://lore.kernel.org/r/952e7f51-f208-9333-6f58-b7ed20d2ea0b@xs4all.nl Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-04-17media: platform: fix some 64-bits warningsMauro Carvalho Chehab
The omap/omap3 and viu drivers are for 32 bit platforms only. There, a pointer has 32 bits. Now that those drivers build for 64 bits with COMPILE_TEST, they produce the following warnings: drivers/media/platform/omap/omap_vout_vrfb.c: In function 'omap_vout_allocate_vrfb_buffers': drivers/media/platform/omap/omap_vout_vrfb.c:57:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] memset((void *) vout->smsshado_virt_addr[i], 0, ^ drivers/media/platform/fsl-viu.c: In function 'viu_setup_preview': drivers/media/platform/fsl-viu.c:753:28: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] reg_val.field_base_addr = (u32)dev->ovbuf.base; ^ drivers/media/platform/omap/omap_vout.c: In function 'omap_vout_get_userptr': drivers/media/platform/omap/omap_vout.c:209:25: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] *physp = virt_to_phys((void *)virtp); ^ drivers/media/platform/omap3isp/ispccdc.c: In function 'ccdc_config': drivers/media/platform/omap3isp/ispccdc.c:738:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] (__force void __user *)fpc.fpcaddr, ^ Add some typecasts to remove those warnings when building for 64 bits. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-22media: v4l: omap_vout: vrfb: remove an unused variableArnd Bergmann
We now get a warning after the 'dmadev' variable is no longer used: drivers/media/platform/omap/omap_vout_vrfb.c: In function 'omap_vout_prepare_vrfb': drivers/media/platform/omap/omap_vout_vrfb.c:239:21: error: unused variable 'dmadev' [-Werror=unused-variable] Fixes: 8f0aa38292f2 ("media: v4l: omap_vout: vrfb: Use the wrapper for prep_interleaved_dma()") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-06media: v4l: omap_vout: vrfb: Use the wrapper for prep_interleaved_dma()Peter Ujfalusi
Instead of directly accessing to dmadev->device_prep_interleaved_dma() use the dmaengine_prep_interleaved_dma() wrapper instead. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-08media: v4l: omap_vout: vrfb: initialize DMA flagsArnd Bergmann
Passing uninitialized flags into device_prep_interleaved_dma is clearly a bad idea, and we get a compiler warning for it: drivers/media/platform/omap/omap_vout_vrfb.c: In function 'omap_vout_prepare_vrfb': drivers/media/platform/omap/omap_vout_vrfb.c:273:5: error: 'flags' may be used uninitialized in this function [-Werror=maybe-uninitialized] It seems that the OMAP dmaengine ignores the flags, but we should pick the right ones anyway. This sets the flags I guessed based on what other drivers used, and Peter confirmed that they are the right ones. Fixes: 6a1560ecaa8c ("media: v4l: omap_vout: vrfb: Convert to dmaengine") Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-08media: v4l: omap_vout: vrfb: include linux/slab.hArnd Bergmann
Without this header, we get a build error in some configurations: drivers/media/platform/omap/omap_vout_vrfb.c: In function 'omap_vout_setup_vrfb_bufs': drivers/media/platform/omap/omap_vout_vrfb.c:143:26: error: implicit declaration of function 'kzalloc'; did you mean 'vzalloc'? [-Werror=implicit-function-declaration] Fixes: 6a1560ecaa8c ("media: v4l: omap_vout: vrfb: Convert to dmaengine") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-24media: v4l: omap_vout: vrfb: Convert to dmaenginePeter Ujfalusi
The dmaengine driver for sDMA now have support for interleaved transfer. This trasnfer type was open coded with the legacy omap-dma API, but now we can move it to dmaengine. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21[media] omap: don't break long linesMauro Carvalho Chehab
Due to the 80-cols restrictions, and latter due to checkpatch warnings, several strings were broken into multiple lines. This is not considered a good practice anymore, as it makes harder to grep for strings at the source code. As we're right now fixing other drivers due to KERN_CONT, we need to be able to identify what printk strings don't end with a "\n". It is a way easier to detect those if we don't break long lines. So, join those continuation lines. The patch was generated via the script below, and manually adjusted if needed. </script> use Text::Tabs; while (<>) { if ($next ne "") { $c=$_; if ($c =~ /^\s+\"(.*)/) { $c2=$1; $next =~ s/\"\n$//; $n = expand($next); $funpos = index($n, '('); $pos = index($c2, '",'); if ($funpos && $pos > 0) { $s1 = substr $c2, 0, $pos + 2; $s2 = ' ' x ($funpos + 1) . substr $c2, $pos + 2; $s2 =~ s/^\s+//; $s2 = ' ' x ($funpos + 1) . $s2 if ($s2 ne ""); print unexpand("$next$s1\n"); print unexpand("$s2\n") if ($s2 ne ""); } else { print "$next$c2\n"; } $next=""; next; } else { print $next; } $next=""; } else { if (m/\"$/) { if (!m/\\n\"$/) { $next=$_; next; } } } print $_; } </script> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2015-11-19[media] v4l: omap_vout: Don't free buffers if they haven't been allocatedLaurent Pinchart
The VRFB buffers are freed when the device is closed even if they haven't been allocated by a call to VIDIOC_REQBUFS, resulting in a crash. Fix it by not trying to free buffers that are not allocated. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-03-03[media] media: omap/omap_vout: fix type of input members to ↵Lad, Prabhakar
omap_vout_setup_vrfb_bufs() the declaration for omap_vout_setup_vrfb_bufs() said it needed 'u32 static_vrfb_allocation' but definition took 'bool static_vrfb_allocation', this patch fixes the declaration so that it matches with the definition and pass a bool instead of int to the call, also included omap_vout_vrfb.h in omap_vout_vrfb.c file so that sparse doesn't complain of making omap_vout_setup_vrfb_bufs() as static function. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-09-03[media] omap: simplify test logicMauro Carvalho Chehab
instead of testing bools if they are false or true, just use if (!foo) or if (foo). That makes the code easier to read and shorter. Also, properly initialize booleans with true or false. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-28[media] omap_vout: avoid sleep_on raceArnd Bergmann
sleep_on and its variants are broken and going away soon. This changes the omap vout driver to use wait_event_interruptible_timeout instead, which fixes potential race where the dma is complete before we schedule. [hans.verkuil@cisco.com: replaced interruptible_sleep_on_timeout by wait_event_interruptible_timeout in the commit msg, obvious typo] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Mauro Carvalho Chehab <m.chehab@samsung.com> Cc: linux-media@vger.kernel.org Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2012-11-30ARM: OMAP: Move plat-omap/dma-omap.h to include/linux/omap-dma.hTony Lindgren
Based on earlier discussions[1] we attempted to find a suitable location for the omap DMA header in commit 2b6c4e73 (ARM: OMAP: DMA: Move plat/dma.h to plat-omap/dma-omap.h) until the conversion to dmaengine is complete. Unfortunately that was before I was able to try to test compile of the ARM multiplatform builds for omap2+, and the end result was not very good. So I'm creating yet another all over the place patch to cut the last dependency for building omap2+ for ARM multiplatform. After this, we have finally removed the driver dependencies to the arch/arm code, except for few drivers that are being worked on. The other option was to make the <plat-omap/dma-omap.h> path to work, but we'd have to add some new header directory to for multiplatform builds. Or we would have to manually include arch/arm/plat-omap/include again from arch/arm/Makefile for omap2+. Neither of these alternatives sound appealing as they will likely lead addition of various other headers exposed to the drivers, which we want to avoid for the multiplatform kernels. Since we already have a minimal include/linux/omap-dma.h, let's just use that instead and add a note to it to not use the custom omap DMA functions any longer where possible. Note that converting omap DMA to dmaengine depends on dmaengine supporting automatically incrementing the FIFO address at the device end, and converting all the remaining legacy drivers. So it's going to be few more merge windows. [1] https://patchwork.kernel.org/patch/1519591/# cc: Russell King <linux@arm.linux.org.uk> cc: Kevin Hilman <khilman@ti.com> cc: "Benoît Cousson" <b-cousson@ti.com> cc: Herbert Xu <herbert@gondor.apana.org.au> cc: "David S. Miller" <davem@davemloft.net> cc: Vinod Koul <vinod.koul@intel.com> cc: Dan Williams <djbw@fb.com> cc: Mauro Carvalho Chehab <mchehab@infradead.org> cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> cc: David Woodhouse <dwmw2@infradead.org> cc: Kyungmin Park <kyungmin.park@samsung.com> cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> cc: Tomi Valkeinen <tomi.valkeinen@ti.com> cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> cc: Hans Verkuil <hans.verkuil@cisco.com> cc: Vaibhav Hiremath <hvaibhav@ti.com> cc: Lokesh Vutla <lokeshvutla@ti.com> cc: Rusty Russell <rusty@rustcorp.com.au> cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> cc: Afzal Mohammed <afzal@ti.com> cc: linux-crypto@vger.kernel.org cc: linux-media@vger.kernel.org cc: linux-mtd@lists.infradead.org cc: linux-usb@vger.kernel.org cc: linux-fbdev@vger.kernel.org Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-17Merge branch 'omap-for-v3.8/cleanup-headers-dss' into ↵Tony Lindgren
omap-for-v3.8/cleanup-headers Conflicts: arch/arm/mach-omap2/board-omap3logic.c arch/arm/mach-omap2/gpmc.c drivers/media/platform/omap/omap_vout.c drivers/media/platform/omap/omap_vout_vrfb.c
2012-10-17OMAP: move arch/arm/plat-omap/include/plat/vrfb.hTomi Valkeinen
Now that vrfb driver is not omap dependent anymore, we can move vrfb.h from arch/arm/plat-omap/include/plat to include/video/omapvrfb.h. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Vaibhav Hiremath <hvaibhav@ti.com>
2012-10-15ARM: OMAP: DMA: Move plat/dma.h to plat-omap/dma-omap.hLokesh Vutla
Move plat/dma.h to plat-omap/dma-omap.h as part of single zImage work Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-10-15ARM: OMAP1: DMA: Moving OMAP1 DMA channel definitions to mach-omap1Lokesh Vutla
Some of the omap1 dma channel definitions are used by some drivers. For moving omap1 dma channel definitions to mach-omap1/, the used ones should be defined locally to driver. Driver can eliminate it by using DT, platform data, or IORESOURCE_DMA. And moving OMAP1 DMA channel definitions to mach-omap1 Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-08-15[media] rename drivers/media/video as .../platformMauro Carvalho Chehab
The remaining drivers are mostly platform drivers. Name the dir to reflect it. It makes sense to latter break it into a few other dirs. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>