2015-04-24 18:04 GMT+08:00 Hans Verkuil :
> On 04/10/2015 12:42 PM, Scott Jiang wrote:
>> Hi Hans,
>>
>>>>
>>>> Hans, I tried to use v4l2-compliance but it failed to compile. Sorry
>>>> for telling you it have passed compilation because I forg
2015-04-09 18:21 GMT+08:00 Hans Verkuil :
> From: Hans Verkuil
>
> Replace all calls to the enum_mbus_fmt video op by the pad
> enum_mbus_code op and remove the duplicate video op.
>
> Signed-off-by: Hans Verkuil
> Cc: Guennadi Liakhovetski
> Cc: Scott Jiang
> Cc: J
2015-04-09 18:21 GMT+08:00 Hans Verkuil :
> From: Hans Verkuil
>
> Replace all calls to try_mbus_fmt in bridge drivers by calls to the
> set_fmt pad op.
>
> Signed-off-by: Hans Verkuil
> Cc: Guennadi Liakhovetski
> Cc: Scott Jiang
> Cc: Jonathan Corbet
> --
Guennadi Liakhovetski
> Cc: Prabhakar Lad
> Cc: Scott Jiang
> Cc: Jonathan Corbet
> ---
> drivers/media/platform/blackfin/bfin_capture.c | 8 +--
Acked-by: Scott Jiang
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the body of a mess
capture: drop bcap_get_unmapped_area()
> media: blackfin: bfin_capture: embed video_device struct in
> bcap_device
>
> drivers/media/platform/blackfin/bfin_capture.c | 348
> ++++-----
> 1 file changed, 103 insertions(+), 245 deletions(-)
>
for patch
Hi Hans,
>
> On Tue, Mar 3, 2015 at 9:39 AM, Hans Verkuil wrote:
>> On 03/03/2015 10:30 AM, Lad, Prabhakar wrote:
>>> Hi Hans,
>>>
>>> On Tue, Mar 3, 2015 at 8:49 AM, Hans Verkuil wrote:
>>>> On 03/02/2015 08:57 AM, Scott Jiang wrote:
>>&
bfin_capture: add support for VIDIOC_EXPBUF
> media: blackfin: bfin_capture: set v4l2 buffer sequence
>
> drivers/media/platform/blackfin/bfin_capture.c | 306
> ++++-----
> 1 file changed, 94 insertions(+), 212 deletions(-)
>
> --
For all these patches,
Acked-by
Hi Lad,
2015-01-23 6:18 GMT+08:00 Lad, Prabhakar :
> this patch adds support to vb2_ioctl_* helpers.
>
> Signed-off-by: Lad, Prabhakar
> ---
> drivers/media/platform/blackfin/bfin_capture.c | 108
> ++---
> 1 file changed, 23 insertions(+), 85 deletions(-)
>
> diff --git a/d
Hi Hans,
>> On Thu, Jan 22, 2015 at 10:18 PM, Lad, Prabhakar
>> wrote:
>>> This patch series, enhances blackfin capture driver with
>>> vb2 helpers.
>>>
>>> Changes for v2:
>>> --
>>> Only patches 5/15 and 8/15 as per Scott's suggestions.
>>>
>>> Lad, Prabhakar (15):
>>> media: bla
Hi Lad,
>>
>> Although I was on holiday but couldn't resist myself from working,
>> since I was away from my hardware I had to choose a different one,
>> blackfin driver was lucky one. Since I don't have the blackfin
>> board I haven't tested them on the actual board, but just compile
>> tested, C
2014-12-20 18:47 GMT+08:00 Lad, Prabhakar :
> this patch adds support to vb2_ioctl_* helpers.
>
> Signed-off-by: Lad, Prabhakar
> ---
> drivers/media/platform/blackfin/bfin_capture.c | 107
> +
> 1 file changed, 22 insertions(+), 85 deletions(-)
>
> diff --git a/drivers/m
2014-12-20 18:47 GMT+08:00 Lad, Prabhakar :
> this patch improves the queue_setup() callback.
>
> Signed-off-by: Lad, Prabhakar
> ---
> drivers/media/platform/blackfin/bfin_capture.c | 10 ++
> 1 file changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/media/platform/blackfi
Hi Lad,
I'm on holiday these days. I will test these patches later.
Thanks,
Scott
2014-12-20 18:47 GMT+08:00 Lad, Prabhakar :
> Hi Scott,
>
> Although I was on holiday but couldn't resist myself from working,
> since I was away from my hardware I had to choose a different one,
> blackfin driver
2014-07-23 17:57 GMT+08:00 Sonic Zhang :
> From: Sonic Zhang
>
> Multiple pinctrl states are defined for 8, 16 and 24 data pin groups in PPI
> peripheral.
> The driver should select correct group before set up further PPI parameters.
>
> Signed-off-by: Sonic Zhang
Acked-b
2014-07-23 17:57 GMT+08:00 Sonic Zhang :
> From: Sonic Zhang
>
> On NOMMU architecture page fault is not triggered if a deleted list entry is
> accessed without reinit.
>
> Signed-off-by: Sonic Zhang
Acked-by: Scott Jiang
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2014-07-23 17:57 GMT+08:00 Sonic Zhang :
> From: Sonic Zhang
>
> if the pinctrl driver is enabled.
>
> Signed-off-by: Sonic Zhang
Acked-by: Scott Jiang
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In fact we only need to give a warning if the driver still use the
buffer after we release all queued buffers.
Signed-off-by: Scott Jiang
---
drivers/media/v4l2-core/videobuf2-core.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/v4l2-core/videobuf2-core.c
2014-03-11 7:15 GMT+08:00 Laurent Pinchart :
> The video-level enum_dv_timings and dv_timings_cap operations are
> deprecated in favor of the pad-level versions. All subdev drivers
> implement the pad-level versions, switch to them.
>
> Cc: Scott Jiang
> Signed-off-by
t; @@ -515,6 +516,7 @@ static int vs6624_read(struct v4l2_subdev *sd, u16 index)
>
> return buf[0];
> }
> +#endif
>
> static int vs6624_write(struct v4l2_subdev *sd, u16 index,
> u8 value)
Acked-by: Scott Jiang
--
To un
> +
> +static int adv7842_g_mbus_fmt(struct v4l2_subdev *sd,
> + struct v4l2_mbus_framefmt *fmt)
> +{
> + struct adv7842_state *state = to_state(sd);
> +
> + fmt->width = state->timings.bt.width;
> + fmt->height = state->timings.bt.height;
> + fmt
2013/7/29 Hans Verkuil :
> From: Hans Verkuil
>
> Use the new defines to calculate the full blanking and frame sizes.
>
> Signed-off-by: Hans Verkuil
> Cc: Lad, Prabhakar
> Cc: Scott Jiang
> ---
> drivers/media/platform/blackfin/bfin_capture.c | 9 ++---
&
v4l2-compliance output for this driver
root:/> v4l2-compliance -d 0
Driver Info:bfin_display bfin_display.0: = START STATUS
=
Driver name : bfin_display
Card type : BF609
Bus info : platform:bfin_display
Driver version:
This is a V4L2 driver for Blackfin video display (E)PPI interface.
This module is common for BF537/BF561/BF548/BF609.
Signed-off-by: Scott Jiang
---
drivers/media/platform/blackfin/Kconfig| 15 +-
drivers/media/platform/blackfin/Makefile |1 +
drivers/media/platform/blackfin
red with attribute
> warn_unused_result [-Wunused-result]
> vb2_queue_init(q);
> ^
>
> Signed-off-by: Hans Verkuil
> Cc: Scott Jiang
> ---
> drivers/media/platform/blackfin/bfin_capture.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
This is a V4L2 driver for Blackfin video display (E)PPI interface.
This module is common for BF537/BF561/BF548/BF609.
Signed-off-by: Scott Jiang
---
drivers/media/platform/blackfin/Kconfig| 15 +-
drivers/media/platform/blackfin/Makefile |1 +
drivers/media/platform/blackfin
ans Verkuil
> Cc: Mauro Carvalho Chehab
> Cc: st...@linuxtv.org
> Cc: Scott Jiang
> Cc: Lad, Prabhakar
> Cc: Guennadi Liakhovetski
> Cc: Jonathan Corbet
> Cc: Ezequiel Garcia
> Cc: Devin Heitmueller
> Cc: Andrey Smirnov
> ---
> drivers/media/platform/blackf
-off-by: Hans Verkuil
> Cc: Scott Jiang
> ---
> drivers/media/i2c/adv7183.c | 16
> 1 file changed, 8 insertions(+), 8 deletions(-)
>
Acked-by: Scott Jiang
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v)
> } else {
> v4l2_err(&bcap_dev->v4l2_dev,
> "Unable to register sub device\n");
> + ret = -ENODEV;
> goto err_unreg_vdev;
> }
>
>
Acked-by: Scott Jiang
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Hi Wei Yongjun,
> drivers/media/platform/blackfin/bfin_capture.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/media/platform/blackfin/bfin_capture.c
> b/drivers/media/platform/blackfin/bfin_capture.c
> index 0e55b08..2d1e032 100644
> --- a/drivers/media/platform/blackfin/bf
This is a V4L2 driver for Blackfin video display (E)PPI interface.
This module is common for BF537/BF561/BF548/BF609.
Signed-off-by: Scott Jiang
---
drivers/media/platform/blackfin/Kconfig| 15 +-
drivers/media/platform/blackfin/Makefile |1 +
drivers/media/platform/blackfin
Hi Sylwester,
>
>> + struct v4l2_device v4l2_dev;
>> + /* v4l2 control handler */
>> + struct v4l2_ctrl_handler ctrl_handler;
>
>
> This handler seems to be unused, I couldn't find any code adding controls
> to it. Any initialization of this handler is a dead code now. You probab
Hi Sylwester ,
>> @@ -9,7 +9,18 @@ config VIDEO_BLACKFIN_CAPTURE
>> To compile this driver as a module, choose M here: the
>> module will be called bfin_capture.
>>
>> +config VIDEO_BLACKFIN_DISPLAY
>> + tristate "Blackfin Video Display Driver"
>> + depends on VIDEO
Hi Hans,
>> +/*
>> + * Analog Devices video display driver
>> + *
>> + * Copyright (c) 2011 Analog Devices Inc.
>
> Analog Devices? What has this to do with Analog Devices?
>
I wrote this driver for Analog Devices Blackfin.
>> +
>> +static int disp_mmap(struct file *file, struct vm_area_struct *
2013/4/12 Hans Verkuil :
> On Sat April 13 2013 01:52:57 Scott Jiang wrote:
>> Signed-off-by: Scott Jiang
>
> Is it OK if I postpone these two patches for 3.11? They don't make sense
> AFAICT without the new display driver, and that will definitely not make it
> fo
This is a bridge driver for blackfin diplay device.
It can work with ppi or eppi interface. DV timings
are supported.
Signed-off-by: Scott Jiang
---
drivers/media/platform/blackfin/Kconfig| 15 +-
drivers/media/platform/blackfin/Makefile |1 +
drivers/media/platform/blackfin
Signed-off-by: Scott Jiang
---
drivers/media/platform/blackfin/ppi.c | 12
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/drivers/media/platform/blackfin/ppi.c
b/drivers/media/platform/blackfin/ppi.c
index 01b5b50..15e9c2b 100644
--- a/drivers/media/platform
More dv_timings ioctl ops are introduced in video core.
Add query_dv_timings/enum_dv_timings accordingly.
Signed-off-by: Scott Jiang
---
drivers/media/platform/blackfin/bfin_capture.c | 28 ++--
1 files changed, 21 insertions(+), 7 deletions(-)
diff --git a/drivers/media
Hi Laurent,
>> >> >> +struct mt9m114_reg {
>> >> >> + u16 reg;
>> >> >> + u32 val;
>> >> >> + int width;
>> >> >> +};
>> >> >> +
>> >> >> +enum {
>> >> >> + MT9M114_QVGA,
>> >> >> + MT9M114_VGA,
>> >> >> + MT9M114_WVGA,
>> >> >> + MT9M114_720P,
>> >> >> +};
>> >> >
>> >
Hi Laurent,
>> >
>> >> +struct mt9m114_reg {
>> >> + u16 reg;
>> >> + u32 val;
>> >> + int width;
>> >> +};
>> >> +
>> >> +enum {
>> >> + MT9M114_QVGA,
>> >> + MT9M114_VGA,
>> >> + MT9M114_WVGA,
>> >> + MT9M114_720P,
>> >> +};
>> >
>> > This is the part I don't like. In
>> This driver support parallel data output mode and
>> QVGA/VGA/WVGA/720P resolution. You can select YCbCr and RGB565
>> output format.
>
> What host bridge do you use this driver with ?
>
I only tested with blackfin.
>
>> + */
>
> [snip]
>
>> +struct mt9m114_reg {
>> + u16 reg;
>> + u32
No MMU systems also make use of this function to do mmap.
Signed-off-by: Scott Jiang
---
drivers/base/dma-mapping.c |2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/drivers/base/dma-mapping.c b/drivers/base/dma-mapping.c
index 0ce39a3..ae655b2 100644
--- a/drivers/base
INGS defines might be removed.
>
> Signed-off-by: Hans Verkuil
> Cc: Scott Jiang
Acked-by: Scott Jiang
> ---
> arch/blackfin/mach-bf609/boards/ezkit.c|8
> drivers/media/platform/blackfin/bfin_capture.c |4 ++--
> 2 files changed, 6 insertions(+), 6 d
This driver support parallel data output mode and
QVGA/VGA/WVGA/720P resolution. You can select YCbCr and RGB565
output format.
Signed-off-by: Scott Jiang
---
drivers/media/i2c/Kconfig | 10 +
drivers/media/i2c/Makefile |1 +
drivers/media/i2c/mt9m114.c | 1055
Signed-off-by: Scott Jiang
---
MAINTAINERS |9 +
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index c5de529..e7ca531 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1652,6 +1652,15 @@ W: http://blackfin.uclinux.org/
S: Supported
Mark current frame as error frame when ppi error interrupt
report fifo error. Member next_frm in struct bcap_device can
be optimized out.
Signed-off-by: Scott Jiang
---
drivers/media/platform/blackfin/bfin_capture.c | 37 +---
drivers/media/platform/blackfin/ppi.c
2012/12/28 Mauro Carvalho Chehab :
> Select is evil as it has issues with dependencies. Better to convert
> it to use depends on.
>
> That fixes a breakage with out-of-tree compilation of the media
> tree.
>
> Signed-off-by: Mauro Carvalho Chehab
> ---
> drivers/media/platform/blackfin/Kconfig |
Other drivers can make use of it.
Signed-off-by: Scott Jiang
---
drivers/media/platform/blackfin/Kconfig |6 +-
drivers/media/platform/blackfin/Makefile |4 ++--
drivers/media/platform/blackfin/ppi.c|7 +++
3 files changed, 14 insertions(+), 3 deletions(-)
diff --git a
Bf60x soc has a new PPI called Enhanced PPI version 3.
HD video is supported now. To achieve this, we redesign
ppi params and add dv timings feature.
Signed-off-by: Scott Jiang
---
drivers/media/platform/blackfin/bfin_capture.c | 148 +---
drivers/media/platform/blackfin
2012/10/8 Wei Yongjun :
> From: Wei Yongjun
>
> Use the module_i2c_driver() macro to make the code smaller
> and a bit simpler.
>
> dpatch engine is used to auto generate this patch.
> (https://github.com/weiyj/dpatch)
>
> Signed-off-by: Wei Yongjun
Acked-by: Sco
2012/10/8 Wei Yongjun :
> From: Wei Yongjun
>
> Use the module_i2c_driver() macro to make the code smaller
> and a bit simpler.
>
> dpatch engine is used to auto generate this patch.
> (https://github.com/weiyj/dpatch)
>
> Signed-off-by: Wei Yongjun
Acked-by: Sco
>> I was using 3.3 linux kernel. I will again check if videobuf2 in 3.5 has
>> already
>> fixed this issue.
>
> [snip..]
>
> Ok I just checked the vb2_dma_contig allocator and it has no major changes
> from my version,
> http://lxr.linux.no/linux+v3.5.3/drivers/media/video/videobuf2-dma-contig.c#
> Yes, the MMU version of remap_pfn_range() does permit non-page-aligned
> `addr' (at least, if the userspace maaping is a non-COW one). But I
> suspect that was an implementation accident - it is a nonsensical thing
> to do, isn't it? The MMU cannot map a bunch of kernel pages onto a
> non-page-
>
> Now, I see that the requested videobuffers are correctly allocated via
> 'vb2_dma_contig_alloc'
> call (see [3] for reference). But the MMAP call fails in
> 'vb2_dma_contig_alloc' function
> in mm/nommu.c (see [4] for reference) when it tries to make the following
> check:
>
> if (ad
> +int vb2_fop_mmap(struct file *file, struct vm_area_struct *vma)
> +{
> + struct video_device *vdev = video_devdata(file);
> +
> + return vb2_mmap(vdev->queue, vma);
> +}
> +EXPORT_SYMBOL_GPL(vb2_fop_mmap);
Missed one file ops.
#ifndef CONFIG_MMU
unsigned long vb2_fop_get_unmapped_ar
2012/6/27 Hans Verkuil :
> On Wed 27 June 2012 11:37:24 Scott Jiang wrote:
>> Hi Hans,
>>
>> I noticed there are two s_std ops in core and video for output. And
>> some drivers call video->s_std_out and then core->s_std in their S_STD
>> iotcl. Coul
Hi Hans,
I noticed there are two s_std ops in core and video for output. And
some drivers call video->s_std_out and then core->s_std in their S_STD
iotcl. Could anyone share me the story why we have
s_std_output/g_std_output/g_tvnorms_output ops in video instead of
making use of s_std/g_std in cor
> I would expect that the combination of v4l2_mbus_framefmt +
> v4l2_dv_timings
> gives you the information you need.
>
I can solve this problem in HD, but how about SD? Add a fake
dv_timings ops in SD decoder driver?
>>>
>>> No, you add g/s_std instead. SD timings ar
>>
>> > I would expect that the combination of v4l2_mbus_framefmt + v4l2_dv_timings
>> > gives you the information you need.
>> >
>> I can solve this problem in HD, but how about SD? Add a fake
>> dv_timings ops in SD decoder driver?
>>
>
> No, you add g/s_std instead. SD timings are set through th
Hi Hans,
> I would expect that the combination of v4l2_mbus_framefmt + v4l2_dv_timings
> gives you the information you need.
>
I can solve this problem in HD, but how about SD? Add a fake
dv_timings ops in SD decoder driver?
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Hi Hans,
> I would expect that the combination of v4l2_mbus_framefmt + v4l2_dv_timings
> gives you the information you need.
About v4l2_mbus_framefmt, you use V4L2_MBUS_FMT_FIXED. I guess you
can't find any yuv 24 or rgb 16/24bit format in current
v4l2_mbus_framefmt. But a bridge driver working w
Hi Guennadi and Hans,
We use v4l2_mbus_framefmt to get frame format on the media bus in
bridge driver. It only contains width and height. It's not a big
problem in SD. But we need more info like front porch, sync width and
back porch (similar to disp_format_s in v4l2_formats.h) in HD. I want
to ad
Hi Ben,
> This doesn't touch any of the documented registers, so presumably it's a
> patch to the firmware loaded from non-volatile memory. Unless you can
> provide source code for the patch, this should go in the linux-firmware
> repository and be loaded with request_firmware() instead of embedd
Hi Laurent,
I'm writing a driver for adv7842 video decoder. This chip has 12 i2c
register maps. IO map is fixed to 0x20 and others are configurable.
I plan to use 0x20 as the subdevice addr to call
v4l2_i2c_new_subdev_board, and call i2c_new_device and i2c_add_driver
in i2c_probe to enumerate othe
This is a v4l2 sensor-level driver for the ST VS6624 camera.
Signed-off-by: Scott Jiang
---
drivers/media/video/Kconfig | 10 +
drivers/media/video/Makefile |1 +
drivers/media/video/vs6624.c | 928 +
drivers/media/video/vs6624_regs.h
This is a v4l2 bridge driver for Blackfin video capture device, support ppi and
eppi interface.
Signed-off-by: Scott Jiang
---
drivers/media/video/Kconfig |2 +
drivers/media/video/Makefile|2 +
drivers/media/video/blackfin/Kconfig| 10
This driver is a v4l2 subdevice driver to support Analog Devices ADV7183 SDTV
video decoder.
Signed-off-by: Scott Jiang
---
drivers/media/video/Kconfig| 10 +
drivers/media/video/Makefile |1 +
drivers/media/video/adv7183.c | 699
2012/1/5 Steven Toth :
> Hans,
>
> In the cx23885 driver as part of vidioc_enum_input call, I have a need
> to return V4L2_IN_ST_NO_SIGNAL in the status
> field as part of struct v4l2_input. Thus, when no signal is detected
> by the video decoder it can be signalled to the calling application.
>
v4
2012/1/4 Sakari Ailus :
> Hi Scott,
>
> Thanks for the patch.
>
> On Wed, Dec 21, 2011 at 10:30:54AM -0500, Scott Jiang wrote:
>> list_is_singular accepts a list head to test whether a list has just one
>> entry.
>> fh->list is the entry, fh->vdev->fh_
>> If I disable this interrupt, other errors like fifo underflow are ignored.
>> Perhaps I can add a parameter in platform data to let user decide to
>> register this interrupt or not.
>
> I think a more generic solution would be preferrable. If that causes
> ignoring real errors, that's of course
2012/1/4 Sakari Ailus :
> Hi Scott,
>
> On Wed, Jan 04, 2012 at 01:50:17PM +0800, Scott Jiang wrote:
>> >> I the case of your bridge, that may not be possible, but that's the only
>> >> one
>> >> I've heard of so I think it's definitel
>> I the case of your bridge, that may not be possible, but that's the only one
>> I've heard of so I think it's definitely a special case. In that case the
>> sensor driver can't be allowed to change the blanking periods while
>> streaming is ongoing.
>
> I agree, it's just a matter of adding prop
2011/12/31 Sakari Ailus :
> Hi Scott,
>
> On Fri, Dec 30, 2011 at 03:20:43PM +0800, Scott Jiang wrote:
>> Hi Hans and Guennadi,
>>
>> Our bridge driver needs to know line clock count including active
>> lines and blanking area.
>> I can compute active clock c
Hi Hans and Guennadi,
Our bridge driver needs to know line clock count including active
lines and blanking area.
I can compute active clock count according to pixel format, but how
can I get this in blanking area in current framework?
Thanks,
Scott
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list_is_singular accepts a list head to test whether a list has just one entry.
fh->list is the entry, fh->vdev->fh_list is the list head.
Signed-off-by: Scott Jiang
---
drivers/media/video/v4l2-fh.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/me
Hi Sakari,
Hans recommends me using v4l2_fh_is_singular in first open, but I
found it used list_is_singular(&fh->list).
Should it use &fh->vdev->fh_list or I missed something?
Regards,
Scott
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>> How about this implementation? I know it's not for soc, but I post it
>> to give my idea.
>> Bridge knows the layout, so it doesn't need to query the subdevice.
>
> Where from? AFAIU, we are talking here about subdevice inputs, right? In
> this case about various inputs of the TV decoder. How sh
Hi Guennadi,
> First question: you probably also want to patch soc_camera_g_input() and
> soc_camera_enum_input(). But no, I do not know how. The video subdevice
> operations do not seem to provide a way to query subdevice routing
> capabilities, so, I've got no idea how we're supposed to support
2011/12/16 Javier Martin :
> Some v4l-subdevs such as tvp5150 have multiple
> inputs. This patch allows the user of a soc-camera
> device to select between them.
>
> Signed-off-by: Javier Martin
> ---
> drivers/media/video/soc_camera.c | 6 +++---
> 1 files changed, 3 insertions(+), 3 deletion
2011/12/15 Hans Verkuil :
> On Thursday, December 15, 2011 10:48:39 Scott Jiang wrote:
>> Hi Hans and Guennadi,
>>
>> I'm wondering how does bridge driver get subdev std (not query)?
>> My case is that bridge needs to get subdev default std.
>
> It can just c
Hi Hans and Guennadi,
I'm wondering how does bridge driver get subdev std (not query)?
My case is that bridge needs to get subdev default std.
Regards,
Scott
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>
> What you would typically do in a case like this (if I understand it
> correctly) is that in the s_input ioctl you first select the input in the
> subdev, and then you can call the subdev to determine the standard and
> format and use that information to set up the bridge. This requires that
> t
>
>> + ret = v4l2_subdev_call(bcap_dev->sd, video,
>> + g_mbus_fmt, &mbus_fmt);
>> + if (ret < 0)
>> + return ret;
>> +
>> + for (i = 0; i < BCAP_MAX_FMTS; i++) {
>> + if (mbus_fmt.code !
2011/9/27 Gilles :
> Scott,
>
> A late echo. I am just now getting into the heart of this project and realize
> I missed your answer here from back in August. Just grabbed the trunk from
> the repo and trying to compile it.
>
> I'm not sure I understand why it would work with one sensor driver an
2011/9/26 Mauro Carvalho Chehab :
> Em 25-09-2011 15:03, Johannes Stezenbach escreveu:
>> On Sun, Sep 25, 2011 at 07:33:57AM -0500, Patrick Dickey wrote:
>>>
>>> I tried to follow the steps for cloning both the "media_tree.git" and
>>> "media_build.git" repositories, and received errors for both.
this driver is a v4l2 subdevice driver to support
Analog Devices ADV7183 SDTV video decoder
Signed-off-by: Scott Jiang
---
drivers/media/video/Kconfig| 10 +
drivers/media/video/Makefile |1 +
drivers/media/video/adv7183.c | 686
this is a v4l2 sensor-level driver for the ST VS6624 camera
Signed-off-by: Scott Jiang
---
drivers/media/video/Kconfig | 10 +
drivers/media/video/Makefile |1 +
drivers/media/video/vs6624.c | 930 +
drivers/media/video/vs6624_regs.h
no mmu system needs get_unmapped_area file operations to do mmap
Signed-off-by: Scott Jiang
---
drivers/media/video/videobuf2-core.c | 31 +++
include/media/videobuf2-core.h |7 +++
2 files changed, 38 insertions(+), 0 deletions(-)
diff --git a
this is a v4l2 bridge driver for Blackfin video capture device,
support ppi interface
Signed-off-by: Scott Jiang
---
drivers/media/video/Kconfig |2 +
drivers/media/video/Makefile|2 +
drivers/media/video/blackfin/Kconfig| 10 +
drivers/media
2011/9/13 Guennadi Liakhovetski :
> On Tue, 13 Sep 2011, Scott Jiang wrote:
>
>> >> +
>> >> +struct bcap_format {
>> >> + u8 *desc;
>> >> + u32 pixelformat;
>> >> + enum v4l2_mbus_pixelcode mbus_code;
>> >>
2011/9/16 Sylwester Nawrocki :
> On 09/15/2011 04:40 AM, Scott Jiang wrote:
>> 2011/9/14 Sylwester Nawrocki:
>>> On 09/14/2011 09:10 AM, Scott Jiang wrote:
>>>>
>>>>>> + fmt =&bcap_fo
>> I have considered using soc, but it can't support decoder when I began
>> to write this driver in 2.6.38.
>
> soc_mediabus.c is a stand-alone module, it has no dependencies on
> soc-camera.
>
> Out of interest - what kind of decoder you mean? A tv-decoder? We do have
> a tv-decoder driver tw9910
2011/9/15 Guennadi Liakhovetski :
> On Thu, 15 Sep 2011, Scott Jiang wrote:
>
>> accually this array is to convert mbus to pixformat. ppi supports any
>> formats.
>
> You mean, it doesn't distinguish formats? It just packs bytes in RAM
> exactly as it ready them f
>
>> +
>> +#define CAPTURE_DRV_NAME "bfin_capture"
>> +#define BCAP_MIN_NUM_BUF 2
>> +
>> +struct bcap_format {
>> + u8 *desc;
>> + u32 pixelformat;
>> + enum v4l2_mbus_pixelcode mbus_code;
>> + int bpp; /* bytes per pixel */
>
> Don't you think you might have to proce
2011/9/14 Sylwester Nawrocki :
> On 09/14/2011 09:10 AM, Scott Jiang wrote:
>>>> +static int bcap_qbuf(struct file *file, void *priv,
>>>> + struct v4l2_buffer *buf)
>>>> +{
>>>> + struct bcap_device *bcap_dev = video_
2011/9/14 Cliff Cai :
> Dear guys,
>
> I'm currently working on a camera/ISP Linux driver project.Of course,I
> want it to be a V4L2 driver,but I got a problem about how to design
> the driver framework.
> let me introduce the background of this ISP(Image signal processor) a
> little bit.
> 1.The I
>
>> +#ifdef CONFIG_VIDEO_ADV_DEBUG
>
> just use DEBUG ?
>
no, v4l2 use CONFIG_VIDEO_ADV_DEBUG
>> + v4l_info(client, "chip found @ 0x%02x (%s)\n",
>> + client->addr << 1, client->adapter->name);
>
> is that "<< 1" correct ? i dont think so ...
every driver under media
> i think at least these three are unused and should get punted
>
>> +static int __devinit bcap_probe(struct platform_device *pdev)
>> +{
>> + struct bcap_device *bcap_dev;
>> + struct video_device *vfd;
>> + struct i2c_adapter *i2c_adap;
>
> you need to include linux/i2c.h for th
>> +static int bcap_qbuf(struct file *file, void *priv,
>> + struct v4l2_buffer *buf)
>> +{
>> + struct bcap_device *bcap_dev = video_drvdata(file);
>> + struct v4l2_fh *fh = file->private_data;
>> + struct bcap_fh *bcap_fh = container_of(fh, struct bcap_fh, fh);
>>
>> > I think, the direct use of vb2_plane_cookie() is discouraged.
>> > vb2_dma_contig_plane_dma_addr() should work for you.
>> >
>> I guess you mean vb2_dma_contig_plane_paddr
>
> no, in the current kernel it's vb2_dma_contig_plane_dma_addr(). See
>
> http://git.linuxtv.org/media_tree.git/shortlog
>> +
>> +struct bcap_format {
>> + u8 *desc;
>> + u32 pixelformat;
>> + enum v4l2_mbus_pixelcode mbus_code;
>> + int bpp; /* bytes per pixel */
>
> Don't you think you might have to process 12 bpp formats at some point,
> like YUV 4:2:0, or NV12? Maybe better calculate in bits from
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