Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752586AbdHHNcu (ORCPT ); Tue, 8 Aug 2017 09:32:50 -0400 Received: from ns.mm-sol.com ([37.157.136.199]:40278 "EHLO extserv.mm-sol.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752392AbdHHNa7 (ORCPT ); Tue, 8 Aug 2017 09:30:59 -0400 From: Todor Tomov To: mchehab@kernel.org, hans.verkuil@cisco.com, s.nawrocki@samsung.com, sakari.ailus@iki.fi, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org Cc: Todor Tomov Subject: [PATCH v4 15/21] camss: vfe: Add interface for scaling Date: Tue, 8 Aug 2017 16:30:12 +0300 Message-Id: <1502199018-28250-16-git-send-email-todor.tomov@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1502199018-28250-1-git-send-email-todor.tomov@linaro.org> References: <1502199018-28250-1-git-send-email-todor.tomov@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7801 Lines: 279 Add compose selection ioctls to handle scaling configuration. Signed-off-by: Todor Tomov --- drivers/media/platform/qcom/camss-8x16/camss-vfe.c | 184 ++++++++++++++++++++- drivers/media/platform/qcom/camss-8x16/camss-vfe.h | 1 + 2 files changed, 183 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/qcom/camss-8x16/camss-vfe.c b/drivers/media/platform/qcom/camss-8x16/camss-vfe.c index de9f1ae..c6b230b 100644 --- a/drivers/media/platform/qcom/camss-8x16/camss-vfe.c +++ b/drivers/media/platform/qcom/camss-8x16/camss-vfe.c @@ -232,6 +232,8 @@ #define CAMIF_TIMEOUT_SLEEP_US 1000 #define CAMIF_TIMEOUT_ALL_US 1000000 +#define SCALER_RATIO_MAX 16 + static const u32 vfe_formats[] = { MEDIA_BUS_FMT_UYVY8_2X8, MEDIA_BUS_FMT_VYUY8_2X8, @@ -1938,6 +1940,25 @@ __vfe_get_format(struct vfe_line *line, return &line->fmt[pad]; } +/* + * __vfe_get_compose - Get pointer to compose selection structure + * @line: VFE line + * @cfg: V4L2 subdev pad configuration + * @which: TRY or ACTIVE format + * + * Return pointer to TRY or ACTIVE compose rectangle structure + */ +static struct v4l2_rect * +__vfe_get_compose(struct vfe_line *line, + struct v4l2_subdev_pad_config *cfg, + enum v4l2_subdev_format_whence which) +{ + if (which == V4L2_SUBDEV_FORMAT_TRY) + return v4l2_subdev_get_try_compose(&line->subdev, cfg, + MSM_VFE_PAD_SINK); + + return &line->compose; +} /* * vfe_try_format - Handle try format by pad subdev method @@ -1984,7 +2005,14 @@ static void vfe_try_format(struct vfe_line *line, *fmt = *__vfe_get_format(line, cfg, MSM_VFE_PAD_SINK, which); - if (line->id == VFE_LINE_PIX) + if (line->id == VFE_LINE_PIX) { + struct v4l2_rect *rect; + + rect = __vfe_get_compose(line, cfg, which); + + fmt->width = rect->width; + fmt->height = rect->height; + switch (fmt->code) { case MEDIA_BUS_FMT_YUYV8_2X8: if (code == MEDIA_BUS_FMT_YUYV8_1_5X8) @@ -2012,6 +2040,7 @@ static void vfe_try_format(struct vfe_line *line, fmt->code = MEDIA_BUS_FMT_VYUY8_2X8; break; } + } break; } @@ -2020,6 +2049,45 @@ static void vfe_try_format(struct vfe_line *line, } /* + * vfe_try_compose - Handle try compose selection by pad subdev method + * @line: VFE line + * @cfg: V4L2 subdev pad configuration + * @rect: pointer to v4l2 rect structure + * @which: wanted subdev format + */ +static void vfe_try_compose(struct vfe_line *line, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_rect *rect, + enum v4l2_subdev_format_whence which) +{ + struct v4l2_mbus_framefmt *fmt; + + fmt = __vfe_get_format(line, cfg, MSM_VFE_PAD_SINK, which); + + if (rect->width > fmt->width) + rect->width = fmt->width; + + if (rect->height > fmt->height) + rect->height = fmt->height; + + if (fmt->width > rect->width * SCALER_RATIO_MAX) + rect->width = (fmt->width + SCALER_RATIO_MAX - 1) / + SCALER_RATIO_MAX; + + rect->width &= ~0x1; + + if (fmt->height > rect->height * SCALER_RATIO_MAX) + rect->height = (fmt->height + SCALER_RATIO_MAX - 1) / + SCALER_RATIO_MAX; + + if (rect->width < 16) + rect->width = 16; + + if (rect->height < 4) + rect->height = 4; +} + +/* * vfe_enum_mbus_code - Handle pixel format enumeration * @sd: VFE V4L2 subdevice * @cfg: V4L2 subdev pad configuration @@ -2114,6 +2182,10 @@ static int vfe_get_format(struct v4l2_subdev *sd, return 0; } +static int vfe_set_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel); + /* * vfe_set_format - Handle set format by pads subdev method * @sd: VFE V4L2 subdevice @@ -2136,20 +2208,126 @@ static int vfe_set_format(struct v4l2_subdev *sd, vfe_try_format(line, cfg, fmt->pad, &fmt->format, fmt->which); *format = fmt->format; - /* Propagate the format from sink to source */ if (fmt->pad == MSM_VFE_PAD_SINK) { + struct v4l2_subdev_selection sel = { 0 }; + int ret; + + /* Propagate the format from sink to source */ format = __vfe_get_format(line, cfg, MSM_VFE_PAD_SRC, fmt->which); *format = fmt->format; vfe_try_format(line, cfg, MSM_VFE_PAD_SRC, format, fmt->which); + + if (line->id != VFE_LINE_PIX) + return 0; + + /* Reset sink pad compose selection */ + sel.which = fmt->which; + sel.pad = MSM_VFE_PAD_SINK; + sel.target = V4L2_SEL_TGT_COMPOSE; + sel.r.width = fmt->format.width; + sel.r.height = fmt->format.height; + ret = vfe_set_selection(sd, cfg, &sel); + if (ret < 0) + return ret; + } + + return 0; +} + +/* + * vfe_get_selection - Handle get selection by pads subdev method + * @sd: VFE V4L2 subdevice + * @cfg: V4L2 subdev pad configuration + * @sel: pointer to v4l2 subdev selection structure + * + * Return -EINVAL or zero on success + */ +static int vfe_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + struct vfe_line *line = v4l2_get_subdevdata(sd); + struct v4l2_subdev_format fmt = { 0 }; + struct v4l2_rect *compose; + int ret; + + if (line->id != VFE_LINE_PIX || sel->pad != MSM_VFE_PAD_SINK) + return -EINVAL; + + switch (sel->target) { + case V4L2_SEL_TGT_COMPOSE_BOUNDS: + fmt.pad = sel->pad; + fmt.which = sel->which; + ret = vfe_get_format(sd, cfg, &fmt); + if (ret < 0) + return ret; + sel->r.left = 0; + sel->r.top = 0; + sel->r.width = fmt.format.width; + sel->r.height = fmt.format.height; + break; + case V4L2_SEL_TGT_COMPOSE: + compose = __vfe_get_compose(line, cfg, sel->which); + if (compose == NULL) + return -EINVAL; + + sel->r = *compose; + break; + default: + return -EINVAL; } return 0; } /* + * vfe_set_selection - Handle set selection by pads subdev method + * @sd: VFE V4L2 subdevice + * @cfg: V4L2 subdev pad configuration + * @sel: pointer to v4l2 subdev selection structure + * + * Return -EINVAL or zero on success + */ +int vfe_set_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + struct vfe_line *line = v4l2_get_subdevdata(sd); + struct v4l2_rect *compose; + struct v4l2_subdev_format fmt = { 0 }; + int ret; + + if (line->id != VFE_LINE_PIX || sel->pad != MSM_VFE_PAD_SINK) + return -EINVAL; + + if (sel->target != V4L2_SEL_TGT_COMPOSE) + return -EINVAL; + + compose = __vfe_get_compose(line, cfg, sel->which); + if (compose == NULL) + return -EINVAL; + + vfe_try_compose(line, cfg, &sel->r, sel->which); + *compose = sel->r; + + /* Reset source pad format width and height */ + fmt.which = sel->which; + fmt.pad = MSM_VFE_PAD_SRC; + ret = vfe_get_format(sd, cfg, &fmt); + if (ret < 0) + return ret; + + fmt.format.width = compose->width; + fmt.format.height = compose->height; + ret = vfe_set_format(sd, cfg, &fmt); + + return ret; +} + +/* * vfe_init_formats - Initialize formats on all pads * @sd: VFE V4L2 subdevice * @fh: V4L2 subdev file handle @@ -2342,6 +2520,8 @@ static const struct v4l2_subdev_pad_ops vfe_pad_ops = { .enum_frame_size = vfe_enum_frame_size, .get_fmt = vfe_get_format, .set_fmt = vfe_set_format, + .get_selection = vfe_get_selection, + .set_selection = vfe_set_selection, }; static const struct v4l2_subdev_ops vfe_v4l2_ops = { diff --git a/drivers/media/platform/qcom/camss-8x16/camss-vfe.h b/drivers/media/platform/qcom/camss-8x16/camss-vfe.h index b0598e4..6518c7a 100644 --- a/drivers/media/platform/qcom/camss-8x16/camss-vfe.h +++ b/drivers/media/platform/qcom/camss-8x16/camss-vfe.h @@ -80,6 +80,7 @@ struct vfe_line { struct v4l2_subdev subdev; struct media_pad pads[MSM_VFE_PADS_NUM]; struct v4l2_mbus_framefmt fmt[MSM_VFE_PADS_NUM]; + struct v4l2_rect compose; struct camss_video video_out; struct vfe_output output; }; -- 2.7.4