Re: [PATCH v3] adv7180: add more subdev video ops

Sergei Shtylyov
2013-05-20T20:20:06Z

Hello.

On 05/13/2013 11:21 PM, Sergei Shtylyov wrote:

> From: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
>
> Add subdev video ops for ADV7180 video decoder. This makes decoder usable on
> the soc-camera drivers.
>
> Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

Hans, what's your opinion of this version? Mauro said I should ask
you first...

> ---
> This patch is against the 'media_tree.git' repo.
>
> Changes from version 2:
> - set the field format depending on video standard in try_mbus_fmt() method;
> - removed querystd() method calls from try_mbus_fmt() and cropcap() methods;
> - removed g_crop() method.
>
> drivers/media/i2c/adv7180.c | 86 ++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 86 insertions(+)
>
> Index: media_tree/drivers/media/i2c/adv7180.c
> ===================================================================
> --- media_tree.orig/drivers/media/i2c/adv7180.c
> +++ media_tree/drivers/media/i2c/adv7180.c
> @@ -1,6 +1,8 @@
> /*
> * adv7180.c Analog Devices ADV7180 video decoder driver
> * Copyright (c) 2009 Intel Corporation
> + * Copyright (C) 2013 Cogent Embedded, Inc.
> + * Copyright (C) 2013 Renesas Solutions Corp.
> *
> * This program is free software; you can redistribute it and/or modify
> * it under the terms of the GNU General Public License version 2 as
> @@ -128,6 +130,7 @@ struct adv7180_state {
> v4l2_std_id curr_norm;
> bool autodetect;
> u8 input;
> + struct v4l2_mbus_framefmt fmt;
> };
> #define to_adv7180_sd(_ctrl) (&container_of(_ctrl->handler, \
> struct adv7180_state, \
> @@ -397,10 +400,93 @@ static void adv7180_exit_controls(struct
> v4l2_ctrl_handler_free(&state->ctrl_hdl);
> }
>
> +static int adv7180_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned int index,
> + enum v4l2_mbus_pixelcode *code)
> +{
> + if (index > 0)
> + return -EINVAL;
> +
> + *code = V4L2_MBUS_FMT_YUYV8_2X8;
> +
> + return 0;
> +}
> +
> +static int adv7180_try_mbus_fmt(struct v4l2_subdev *sd,
> + struct v4l2_mbus_framefmt *fmt)
> +{
> + struct adv7180_state *state = to_state(sd);
> +
> + fmt->code = V4L2_MBUS_FMT_YUYV8_2X8;
> + fmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
> + fmt->field = state->curr_norm & V4L2_STD_525_60 ?
> + V4L2_FIELD_INTERLACED_BT : V4L2_FIELD_INTERLACED_TB;
> + fmt->width = 720;
> + fmt->height = state->curr_norm & V4L2_STD_525_60 ? 480 : 576;
> +
> + return 0;
> +}
> +
> +static int adv7180_g_mbus_fmt(struct v4l2_subdev *sd,
> + struct v4l2_mbus_framefmt *fmt)
> +{
> + struct adv7180_state *state = to_state(sd);
> +
> + *fmt = state->fmt;
> +
> + return 0;
> +}
> +
> +static int adv7180_s_mbus_fmt(struct v4l2_subdev *sd,
> + struct v4l2_mbus_framefmt *fmt)
> +{
> + struct adv7180_state *state = to_state(sd);
> +
> + adv7180_try_mbus_fmt(sd, fmt);
> + state->fmt = *fmt;
> +
> + return 0;
> +}
> +
> +static int adv7180_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
> +{
> + struct adv7180_state *state = to_state(sd);
> +
> + a->bounds.left = 0;
> + a->bounds.top = 0;
> + a->bounds.width = 720;
> + a->bounds.height = state->curr_norm & V4L2_STD_525_60 ? 480 : 576;
> + a->defrect = a->bounds;
> + a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
> + a->pixelaspect.numerator = 1;
> + a->pixelaspect.denominator = 1;
> +
> + return 0;
> +}
> +
> +static int adv7180_g_mbus_config(struct v4l2_subdev *sd,
> + struct v4l2_mbus_config *cfg)
> +{
> + /*
> + * The ADV7180 sensor supports BT.601/656 output modes.
> + * The BT.656 is default and not yet configurable by s/w.
> + */
> + cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING |
> + V4L2_MBUS_DATA_ACTIVE_HIGH;
> + cfg->type = V4L2_MBUS_BT656;
> +
> + return 0;
> +}
> +
> static const struct v4l2_subdev_video_ops adv7180_video_ops = {
> .querystd = adv7180_querystd,
> .g_input_status = adv7180_g_input_status,
> .s_routing = adv7180_s_routing,
> + .enum_mbus_fmt = adv7180_enum_mbus_fmt,
> + .try_mbus_fmt = adv7180_try_mbus_fmt,
> + .g_mbus_fmt = adv7180_g_mbus_fmt,
> + .s_mbus_fmt = adv7180_s_mbus_fmt,
> + .cropcap = adv7180_cropcap,
> + .g_mbus_config = adv7180_g_mbus_config,
> };
>
> static const struct v4l2_subdev_core_ops adv7180_core_ops = {

WBR, Sergei