- 25 Nov, 2012 8 commits
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Tomasz Stanislawski authored
This patch introduces usage of dma_map_sg to map memory behind a userspace pointer to a device as dma-contiguous mapping. This patch contains some of the code kindly provided by Marek Szyprowski <m.szyprowski@samsung.com> and Kamil Debski <k.debski@samsung.com> and Andrzej Pietrasiewicz <andrzej.p@samsung.com>. Kind thanks for bug reports from Laurent Pinchart <laurent.pinchart@ideasonboard.com> and Seung-Woo Kim <sw0312.kim@samsung.com>. Signed-off-by:
Tomasz Stanislawski <t.stanislaws@samsung.com> Signed-off-by:
Kyungmin Park <kyungmin.park@samsung.com> Acked-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by:
Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com>
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Laurent Pinchart authored
Group functions by buffer type. Signed-off-by:
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Tomasz Stanislawski authored
This patch removes a reference to alloc_ctx from an instance of a DMA contiguous buffer. It helps to avoid a risk of a dangling pointer if the context is released while the buffer is still valid. Moreover it removes one dereference step while accessing a device structure. Signed-off-by:
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Laurent Pinchart authored
Signed-off-by:
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Sumit Semwal authored
Adding DMABUF memory type causes videobuf to complain about not using it in some switch cases. This patch removes these warnings. Signed-off-by:
Sumit Semwal <sumit.semwal@ti.com> Acked-by:
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Sumit Semwal authored
This patch adds support for DMABUF memory type in videobuf2. It calls relevant APIs of dma_buf for v4l reqbuf / qbuf / dqbuf operations. For this version, the support is for videobuf2 as a user of the shared buffer; so the allocation of the buffer is done outside of V4L2. [A sample allocator of dma-buf shared buffer is given at [1]] [1]: Rob Clark's DRM: https://github.com/robclark/kernel-omap4/commits/drmplane-dmabuf [original work in the PoC for buffer sharing] Signed-off-by:
Sumit Semwal <sumit.semwal@linaro.org> Acked-by:
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Tomasz Stanislawski authored
This patch adds description and usage examples for importing DMABUF file descriptor in V4L2. Signed-off-by:
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Sumit Semwal authored
Adds DMABUF memory type to v4l framework. Also adds the related file descriptor in v4l2_plane and v4l2_buffer. [original work in the PoC for buffer sharing] Signed-off-by:
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- 23 Nov, 2012 2 commits
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Mauro Carvalho Chehab authored
As reported by Stephen: After merging the v4l-dvb tree, today's linux-next build (x86_64 allmodconfig) failed like this: ERROR: "sms_ir_exit" [drivers/media/common/siano/smsmdtv.ko] undefined! ERROR: "sms_ir_event" [drivers/media/common/siano/smsmdtv.ko] undefined! ERROR: "sms_ir_init" [drivers/media/common/siano/smsmdtv.ko] undefined! The smsir file should be part of the smsmdtv core, if RC is defined. Fix it. Reported-by:Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
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Mauro Carvalho Chehab authored
This reverts commit 6ee28d94. The patch got some alien code there, not sure why. Revert it to apply it properly. Signed-off-by:
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- 22 Nov, 2012 24 commits
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Rémi Cardona authored
Since b9bf2eaf, the function ds3000_firmware_ondemand() is called only once during init. This locking scheme may have been useful when the firmware was loaded at each tune. Furthermore, it looks like this 'lock' was put in to prevent concurrent access (and not recursion as the comments suggest). However, this open- coded mechanism is anything but race-free and should have used a proper mutex. Signed-off-by:
Rémi Cardona <remi.cardona@smartjog.com> Reviewed-by:
Antti Palosaari <crope@iki.fi> Signed-off-by:
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Rémi Cardona authored
Signed-off-by:
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Peter Senna Tschudin authored
Replace kmemdup for kstrdup and cleanup related code. Signed-off-by:
Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by:
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Peter Senna Tschudin authored
The function cx25821_sram_channel_setup_upstream_audio always return zero, so the return value is not saved any more. Convert a nonnegative error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by:
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Peter Senna Tschudin authored
Convert a nonnegative error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> While here, replace strlen()+kmemdup() to kstrdup(). Signed-off-by:
walter harms <wharms@bfs.de> Signed-off-by:
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Peter Senna Tschudin authored
Convert a nonnegative error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by:
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Peter Senna Tschudin authored
Convert a nonnegative error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by:
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Peter Senna Tschudin authored
Convert a nonnegative error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by:
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Peter Senna Tschudin authored
Convert a nonnegative error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by:
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Peter Senna Tschudin authored
Convert a nonnegative error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by:
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Peter Senna Tschudin authored
Convert a nonnegative error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by:
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Peter Senna Tschudin authored
Convert a nonnegative error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by:
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Hans Verkuil authored
The dma_queue list is accessed by both the interrupt handler and by normal code. It needs to be protected by a lock to prevent possible list corruption. Corruption has been observed in 'real-life' conditions. Adding this lock made it go away. Signed-off-by:
Lad, Prabhakar <prabhakar.lad@ti.com> Signed-off-by:
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Hans Verkuil authored
The dma_queue list is accessed by both the interrupt handler and by normal code. It needs to be protected by a lock to prevent possible list corruption. Signed-off-by:
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Wei Yongjun authored
In case of error, the function vb2_dma_contig_init_ctx() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by:
Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by:
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Wei Yongjun authored
The v4l2_subdev_call() call returns -ENODEV when subdev is null and -ENOIOCTLCMD wnen no icotl is present. This patch fixes the return type check for v4l2_subdev_call(). The pattern E == C1 && E == C2 is always false. This patch fix this according to the assumption that && should be ||. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by:
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Wei Yongjun authored
The v4l2_subdev_call() call returns -ENODEV when subdev is null and -ENOIOCTLCMD wnen no icotl is present. This patch fixes the return type check for v4l2_subdev_call(). The pattern E == C1 && E == C2 is always false. This patch fix this according to the assumption that && should be ||. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by:
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Laurent Pinchart authored
v4l2_subdev_link_validate_get_format() retrieves the remote pad format depending on the entity type and prints a warning if the entity type is not supported. The type check doesn't take the subtype into account, and thus always prints a warning for device node types, even when supported. Fix it. Signed-off-by:
Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by:
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Anatolij Gustschin authored
Set "y_skip_top" to zero and revise comment as I do not see this line corruption on two different mt9v022 setups. The first read-out line is perfectly fine. Add mt9v022 platform data configuring y_skip_top for platforms that have issues with the first read-out line. Set y_skip_top to 1 for pcm990 board. Signed-off-by:
Anatolij Gustschin <agust@denx.de> Acked-by:
Eric Miao <eric.y.miao@gmail.com> Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by:
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Anatolij Gustschin authored
Some camera systems cannot operate mt9v022 in normal mode and use only the snapshot mode. The TechNote for mt9v022 (TN0960) and mt9v024 (TN-09-225) describes required register settings when configuring the snapshot operation. The snapshot mode requires that certain automatic functions of the image sensor should be disabled or set to fixed values. According to the TechNote bit 2 and bit 9 in the register 0x20 must be set in snapshot mode and unset for normal operation. This applies for mt9v022 Rev.3 and mt9v024. Add required reg. 0x20 settings dependent on sensor chip version. Signed-off-by:
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Anatolij Gustschin authored
Add controls for horizontal and vertical blanking. Also add an error message for case that the control handler init failed. Since setting the blanking registers is done by controls now, we shouldn't change these registers outside of the control function. Use v4l2_ctrl_s_ctrl() to set them. Signed-off-by:
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Frank Schäfer authored
This is the result of experimenting with the SpeedLink VAD Laplace webcam. The register sequence for V4L2_MBUS_FMT_YUYV8_2X8 has been identified by analyzing USB-logs of this device running on MS Windows. Signed-off-by:
Frank Schäfer <fschaefer.oss@googlemail.com> Signed-off-by:
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Anatolij Gustschin authored
Try reading on video device. If the camera bus driver supports reading we can try it and return the result. Also add a debug line. Signed-off-by:
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Shawn Guo authored
The mx1_camera driver has been broken for a few release cycles since commit 6bd08127 (dmaengine: imx-dma: merge old dma-v1.c with imx-dma.c). It seems there is no one even compile tested it since then, as doing so will end up with the following error. CC drivers/media/platform/soc_camera/mx1_camera.o In file included from drivers/media/platform/soc_camera/mx1_camera.c:44:0: arch/arm/mach-imx/include/mach/dma-mx1-mx2.h:8:25: fatal error: mach/dma-v1.h: No such file or directory It seems there is no one being interested in bringing it back to work [1] so far. Let's mark it BROKEN. [1] https://lkml.org/lkml/2012/2/9/171Signed-off-by:
Shawn Guo <shawn.guo@linaro.org> Signed-off-by:
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- 21 Nov, 2012 6 commits
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Alan Cox authored
Missing break Signed-off-by:
Alan Cox <alan@linux.intel.com> Signed-off-by:
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Alan Cox authored
This should have break statements in it. Signed-off-by:
Mike Isely <isely@pobox.com> Signed-off-by:
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Shubhrajyoti D authored
Convert the struct i2c_msg initialization to C99 format. This makes maintaining and editing the code simpler. Also helps once other fields like transferred are added in future. Signed-off-by:
Shubhrajyoti D <shubhrajyoti@ti.com> Acked-by:
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Sean Young authored
The winbond hardware has a counter for leading edges, which increases as they are received. As we read raw IR from a fifo in an interrupt handler, we cannot correlate them to specific IR pulses so we simply count all pulses and edges until we go idle and disable the receiver. Signed-off-by:
Sean Young <sean@mess.org> Signed-off-by:
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Sean Young authored
This is needed for carrier reporting. Signed-off-by:
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Sean Young authored
The receiver is never disabled by idle mode since rxstate never gets set to RXSTATE_ACTIVE, so we keep on getting interrupts after the first IR activity ends. Note that ir_raw_event_reset() already calls ir_raw_event_handle(). Signed-off-by:
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