Hi Inki,
I was on vacation just came,
Below are my comments.
> -----Original Message-----
> From: InKi Dae [mailto:[email protected]]
> Sent: Thursday, April 30, 2009 6:19 PM
> To: Shah, Hardik
> Cc: [email protected]; [email protected]; linux-
> [email protected]; Jadav, Brijesh R; Hiremath, Vaibhav
> Subject: Re: [PATCH 3/3] OMAP2/3 V4L2 Display Driver
>
> Thank you Shah, Hardik.
> I have patched your driver through that git.
>
> but your patch recognizes video2 layer as video1 device node in case
> that DSS2 has fb0 and fb1.
[Shah, Hardik] There is no need to change the nodes. If there is only one
video device present than it should be /dev/video1 and not /dev/video2. Its
upto the driver to use which video pipeline 1 or 2. So let the node
nomenclature be same.
Regards,
Hardik
>
> you said my patch will give rise to couple of more bugs related to
> global_alpha and pixel formats
> maybe that would be because of vout->vid_info.id = k + vout_count;
>
> so I have applied your patch to my way.
> this patch is more flexible and recognizes video2 layer correctly as
> video2 device node.
> ------------------------------------------------------------------------------
> ------------------------------------------------------------------------
> --- a/drivers/media/video/omap/omap_vout.c
> +++ b/drivers/media/video/omap/omap_vout.c
> @@ -2204,7 +2204,7 @@ free_buffers:
> /* Create video out devices */
> static int __init omap_vout_create_video_devices(struct platform_device
> *pdev)
> {
> - int r = 0, k;
> + int r = 0, k, vout_count;
> struct omap_vout_device *vout;
> struct video_device *vfd = NULL;
> struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
> @@ -2212,6 +2212,8 @@ static int __init
> omap_vout_create_video_devices(struct platform_device *pdev)
> struct omap2video_device *vid_dev = container_of(v4l2_dev, struct
> omap2video_device, v4l2_dev);
>
> + vout_count = 3 - pdev->num_resources;
> +
> for (k = 0; k < pdev->num_resources; k++) {
>
> vout = kmalloc(sizeof(struct omap_vout_device), GFP_KERNEL);
> @@ -2225,12 +2227,7 @@ static int __init
> omap_vout_create_video_devices(struct platform_device *pdev)
> vout->vid = k;
> vid_dev->vouts[k] = vout;
> vout->vid_dev = vid_dev;
> - /* Select video2 if only 1 overlay is controlled by V4L2 */
> - if (pdev->num_resources == 1)
> - vout->vid_info.overlays[0] = vid_dev->overlays[k + 2];
> - else
> - /* Else select video1 and video2 one by one. */
> - vout->vid_info.overlays[0] = vid_dev->overlays[k + 1];
> + vout->vid_info.overlays[0] = vid_dev->overlays[k +
> vout_count];
> vout->vid_info.num_overlays = 1;
> vout->vid_info.id = k + 1;
> vid_dev->num_videos++;
> @@ -2253,7 +2250,7 @@ static int __init
> omap_vout_create_video_devices(struct platform_device *pdev)
> /* Register the Video device with V4L2
> */
> vfd = vout->vfd;
> - if (video_register_device(vfd, VFL_TYPE_GRABBER, k + 1) < 0) {
> + if (video_register_device(vfd, VFL_TYPE_GRABBER, k +
> vout_count) < 0) {
> printk(KERN_ERR VOUT_NAME ": could not register "
> "Video for Linux device\n");
> vfd->minor = -1
> ------------------------------------------------------------------------------
> ------------------------------------------------------------------------------
> ---------
>
> 2009/4/30 Shah, Hardik <[email protected]>:
>
> >
> >> -----Original Message-----
> >> From: [email protected] [mailto:linux-media-
> >> [email protected]] On Behalf Of Shah, Hardik
> >> Sent: Thursday, April 30, 2009 11:51 AM
> >> To: InKi Dae
> >> Cc: [email protected]; [email protected]; linux-
> >> [email protected]; Jadav, Brijesh R; Hiremath, Vaibhav
> >> Subject: RE: [PATCH 3/3] OMAP2/3 V4L2 Display Driver
> >>
> >>
> >>
> >> > -----Original Message-----
> >> > From: InKi Dae [mailto:[email protected]]
> >> > Sent: Thursday, April 30, 2009 11:48 AM
> >> > To: Shah, Hardik
> >> > Cc: [email protected]; [email protected]; linux-
> >> > [email protected]; Jadav, Brijesh R; Hiremath, Vaibhav
> >> > Subject: Re: [PATCH 3/3] OMAP2/3 V4L2 Display Driver
> >> >
> >> > hello Shah, Hardik..
> >> >
> >> > your omap_vout.c has the problem that it disables video1 or fb1.
> >> > so I have modified your code.
> >> >
> >> > I defined and set platform_data for DSS2 in machine code.(or board file)
> >> >
> >> > static struct omapfb_platform_data xxx_dss_platform_data = {
> >> > .mem_desc.region[0].format = OMAPFB_COLOR_ARGB32,
> >> > .mem_desc.region[0].format_used=1,
> >> >
> >> > .mem_desc.region[1].format = OMAPFB_COLOR_RGB24U,
> >> > .mem_desc.region[1].format_used=1,
> >> >
> >> > .mem_desc.region[2].format = OMAPFB_COLOR_ARGB32,
> >> > .mem_desc.region[2].format_used=1,
> >> > };
> >> >
> >> > omapfb_set_platform_data(&xxx_dss_platform_data);
> >> >
> >> > after that, omap_vout has resource count got referring to framebuffer
> count,
> >> > registers overlay as vout's one and would decide to use which overlay.
> >> >
> >> > at that time, your code would face with impact on some overlay(fb or
> video).
> >> >
> >> > this patch would solve that problem.
> >> > when it sets overlay to vout, vout would get overlay array index to
> >> > avoid overlapping with other overlay.
> >> >
> >> >
> >> > sighed-off-by: InKi Dae. <[email protected]>
> >> > ---
> >> > diff --git a/drivers/media/video/omap/omap_vout.c
> >> > b/drivers/media/video/omap/omap_vout.c
> >> > index 9b4a0d7..051298a 100644
> >> > --- a/drivers/media/video/omap/omap_vout.c
> >> > +++ b/drivers/media/video/omap/omap_vout.c
> >> > @@ -2246,11 +2246,13 @@ free_buffers:
> >> > /* Create video out devices */
> >> > static int __init omap_vout_create_video_devices(struct platform_device
> >> > *pdev)
> >> > {
> >> > - int r = 0, k;
> >> > + int r = 0, k, vout_count;
> >> > struct omap_vout_device *vout;
> >> > struct video_device *vfd = NULL;
> >> > struct omap2video_device *vid_dev = platform_get_drvdata(pdev);
> >> >
> >> > + vout_count = 3 - pdev->num_resources;
> >> > +
> >> > for (k = 0; k < pdev->num_resources; k++) {
> >> >
> >> > vout = kmalloc(sizeof(struct omap_vout_device), GFP_KERNEL);
> >> > @@ -2266,9 +2268,9 @@ static int __init
> >> > omap_vout_create_video_devices(struct platform_device *pdev)
> >> > vout->vid = k;
> >> > vid_dev->vouts[k] = vout;
> >> > vout->vid_info.vid_dev = vid_dev;
> >> > - vout->vid_info.overlays[0] = vid_dev->overlays[k + 1];
> >> > + vout->vid_info.overlays[0] = vid_dev->overlays[k +
> vout_count];
> >> > vout->vid_info.num_overlays = 1;
> >> > - vout->vid_info.id = k + 1;
> >> > + vout->vid_info.id = k + vout_count;
> >> > vid_dev->num_videos++;
> >> >
> >> > /* Setup the default configuration for the video devices
> >> > @@ -2289,7 +2291,7 @@ static int __init
> >> > omap_vout_create_video_devices(struct platform_device *pdev)
> >> > /* Register the Video device with V4L2
> >> > */
> >> > vfd = vout->vfd;
> >> > - if (video_register_device(vfd, VFL_TYPE_GRABBER, k + 1) < 0)
> {
> >> > + if (video_register_device(vfd, VFL_TYPE_GRABBER, k +
> vout_count) <
> >> > 0) {
> >> > printk(KERN_ERR VOUT_NAME ": could not register \
> >> > Video for Linux device\n");
> >> > vfd->minor = -1;
> >> >
> >> >
> >> > 2009/4/22 Shah, Hardik <[email protected]>:
> >> [Shah, Hardik] Yes this is correct,
> >> I will apply this patch. I already found it and fixed it in different way
> but
> >> any way I will apply your patch.
> > [Shah, Hardik] Further on this inki. Solving this bug will give rise to
> couple of more bugs related to global_alpha and pixel formats. That also is
> fixed. You can refer http://arago-project.org/git/people/vaibhav/ti-psp-omap-
> video.git?p=people/vaibhav/ti-psp-omap-video.git;a=summary
> >> > >
> >> > >
> >> > >> -----Original Message-----
> >> > >> From: Tomi Valkeinen [mailto:[email protected]]
> >> > >> Sent: Wednesday, April 22, 2009 1:53 PM
> >> > >> To: Shah, Hardik
> >> > >> Cc: [email protected]; [email protected]; Jadav,
> >> Brijesh
> >> > R;
> >> > >> Hiremath, Vaibhav
> >> > >> Subject: Re: [PATCH 3/3] OMAP2/3 V4L2 Display Driver
> >> > >>
> >> > >> Hi,
> >> > >>
> >> > >> On Wed, 2009-04-22 at 08:25 +0200, ext Hardik Shah wrote:
> >> > >> > This is the version 5th of the Driver.
> >> > >> >
> >> > >> > Following are the features supported.
> >> > >> > 1. Provides V4L2 user interface for the video pipelines of DSS
> >> > >> > 2. Basic streaming working on LCD and TV.
> >> > >> > 3. Support for various pixel formats like YUV, UYVY, RGB32, RGB24,
> >> RGB565
> >> > >> > 4. Supports Alpha blending.
> >> > >> > 5. Supports Color keying both source and destination.
> >> > >> > 6. Supports rotation with RGB565 and RGB32 pixels formats.
> >> > >> > 7. Supports cropping.
> >> > >> > 8. Supports Background color setting.
> >> > >> > 9. Works on latest DSS2 library from Tomi
> >> > >> > http://www.bat.org/~tomba/git/linux-omap-dss.git/
> >> > >> > 10. 1/4x scaling added. Detail testing left
> >> > >> >
> >> > >> > TODOS
> >> > >> > 1. Ioctls needs to be added for color space conversion matrix
> >> > >> > coefficient programming.
> >> > >> > 2. To be tested on DVI resolutions.
> >> > >> >
> >> > >> > Comments fixed from community.
> >> > >> > 1. V4L2 Driver for OMAP3/3 DSS.
> >> > >> > 2. Conversion of the custom ioctls to standard V4L2 ioctls like
> alpha
> >> > >> blending,
> >> > >> > color keying, rotation and back ground color setting
> >> > >> > 3. Re-organised the code as per community comments.
> >> > >> > 4. Added proper copyright year.
> >> > >> > 5. Added module name in printk
> >> > >> > 6. Kconfig option copy/paste error
> >> > >> > 7. Module param desc addded.
> >> > >> > 8. Query control implemented using standard query_fill
> >> > >> > 9. Re-arranged if-else constructs.
> >> > >> > 10. Changed to use mutex instead of semaphore.
> >> > >> > 11. Removed dual usage of rotation angles.
> >> > >> > 12. Implemented function to convert the V4L2 angle to DSS angle.
> >> > >> > 13. Y-position was set half by video driver for TV output
> >> > >> > Now its done by DSS so removed that.
> >> > >> > 14. Minor cleanup
> >> > >> > 15. Added support to pass the page offset to application.
> >> > >> > 14. Minor cleanup
> >> > >> > 15. Added support to pass the page offset to application.
> >> > >> > 16. Renamed V4L2_CID_ROTATION to V4L2_CID_ROTATE
> >> > >> > 17. Major comment from Hans fixed.
> >> > >> > 18. Copy right year changed.
> >> > >> > 19. Added module name for each error/warning print message.
> >> > >> >
> >> > >> > Changes from Previous Version.
> >> > >> > 1. Supported YUV rotation.
> >> > >> > 2. Supported Flipping.
> >> > >> > 3. Rebased line with Tomi's latest DSS2 master branch with commit
> id
> >> > >> > f575a02edf2218a18d6f2ced308b4f3e26b44ce2.
> >> > >> > 4. Kconfig option removed to select between the TV and LCD.
> >> > >> > Now supported dynamically by DSS2 library.
> >> > >> > 5. Kconfig option for the NTSC_M and PAL_BDGHI mode but not
> >> > >> > supported by DSS2. so it will not work now.
> >> > >>
> >> > >> There is basic support for this. See the DSS doc:
> >> > >>
> >> > >> /sys/devices/platform/omapdss/display? directory:
> >> > >> ...
> >> > >> timings Display timings
> >> > (pixclock,xres/hfp/hbp/hsw,yres/vfp/vbp/vsw)
> >> > >> When writing, two special timings are accepted for tv-
> >> out:
> >> > >> "pal" and "ntsc"
> >> > > [Shah, Hardik] I was not aware of it will remove the compile time
> option
> >> and
> >> > for now let the sysfs entry change the standard. In future I will try to
> do
> >> > it with the S_STD and G_STD ioctls of the V4L2 framework.
> >> > >>
> >> > >> Tomi
> >> > >>
> >> > >>
> >> > >
> >> > > --
> >> > > To unsubscribe from this list: send the line "unsubscribe linux-media"
> in
> >> > > the body of a message to [email protected]
> >> > > More majordomo info at http://vger.kernel.org/majordomo-info.html
> >> > >
> >>
> >> --
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> >
> >
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