From 0d346d2a6f54f06f36b224fd27cd6eafe8c83be9 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Thu, 10 Jun 2021 17:55:58 +0300 Subject: media: v4l2-subdev: add subdev-wide state struct We have 'struct v4l2_subdev_pad_config' which contains configuration for a single pad used for the TRY functionality, and an array of those structs is passed to various v4l2_subdev_pad_ops. I was working on subdev internal routing between pads, and realized that there's no way to add TRY functionality for routes, which is not pad specific configuration. Adding a separate struct for try-route config wouldn't work either, as e.g. set-fmt needs to know the try-route configuration to propagate the settings. This patch adds a new struct, 'struct v4l2_subdev_state' (which at the moment only contains the v4l2_subdev_pad_config array) and the new struct is used in most of the places where v4l2_subdev_pad_config was used. All v4l2_subdev_pad_ops functions taking v4l2_subdev_pad_config are changed to instead take v4l2_subdev_state. The changes to drivers/media/v4l2-core/v4l2-subdev.c and include/media/v4l2-subdev.h were written by hand, and all the driver changes were done with the semantic patch below. The spatch needs to be applied to a select list of directories. I used the following shell commands to apply the spatch: dirs="drivers/media/i2c drivers/media/platform drivers/media/usb drivers/media/test-drivers/vimc drivers/media/pci drivers/staging/media" for dir in $dirs; do spatch -j8 --dir --include-headers --no-show-diff --in-place --sp-file v4l2-subdev-state.cocci $dir; done Note that Coccinelle chokes on a few drivers (gcc extensions?). With minor changes we can make Coccinelle run fine, and these changes can be reverted after spatch. The diff for these changes is: For drivers/media/i2c/s5k5baf.c: @@ -1481,7 +1481,7 @@ static int s5k5baf_set_selection(struct v4l2_subdev *sd, &s5k5baf_cis_rect, v4l2_subdev_get_try_crop(sd, cfg, PAD_CIS), v4l2_subdev_get_try_compose(sd, cfg, PAD_CIS), - v4l2_subdev_get_try_crop(sd, cfg, PAD_OUT) + v4l2_subdev_get_try_crop(sd, cfg, PAD_OUT), }; s5k5baf_set_rect_and_adjust(rects, rtype, &sel->r); return 0; For drivers/media/platform/s3c-camif/camif-capture.c: @@ -1230,7 +1230,7 @@ static int s3c_camif_subdev_get_fmt(struct v4l2_subdev *sd, *mf = camif->mbus_fmt; break; - case CAMIF_SD_PAD_SOURCE_C...CAMIF_SD_PAD_SOURCE_P: + case CAMIF_SD_PAD_SOURCE_C: /* crop rectangle at camera interface input */ mf->width = camif->camif_crop.width; mf->height = camif->camif_crop.height; @@ -1332,7 +1332,7 @@ static int s3c_camif_subdev_set_fmt(struct v4l2_subdev *sd, } break; - case CAMIF_SD_PAD_SOURCE_C...CAMIF_SD_PAD_SOURCE_P: + case CAMIF_SD_PAD_SOURCE_C: /* Pixel format can be only changed on the sink pad. */ mf->code = camif->mbus_fmt.code; mf->width = crop->width; The semantic patch is: // // Change function parameter @@ identifier func; identifier cfg; @@ func(..., - struct v4l2_subdev_pad_config *cfg + struct v4l2_subdev_state *sd_state , ...) { <... - cfg + sd_state ...> } // Change function declaration parameter @@ identifier func; identifier cfg; type T; @@ T func(..., - struct v4l2_subdev_pad_config *cfg + struct v4l2_subdev_state *sd_state , ...); // Change function return value @@ identifier func; @@ - struct v4l2_subdev_pad_config + struct v4l2_subdev_state *func(...) { ... } // Change function declaration return value @@ identifier func; @@ - struct v4l2_subdev_pad_config + struct v4l2_subdev_state *func(...); // Some drivers pass a local pad_cfg for a single pad to a called function. Wrap it // inside a pad_state. @@ identifier func; identifier pad_cfg; @@ func(...) { ... struct v4l2_subdev_pad_config pad_cfg; + struct v4l2_subdev_state pad_state = { .pads = &pad_cfg }; <+... ( v4l2_subdev_call | sensor_call | isi_try_fse | isc_try_fse | saa_call_all ) (..., - &pad_cfg + &pad_state ,...) ...+> } // If the function uses fields from pad_config, access via state->pads @@ identifier func; identifier state; @@ func(..., struct v4l2_subdev_state *state , ...) { <... ( - state->try_fmt + state->pads->try_fmt | - state->try_crop + state->pads->try_crop | - state->try_compose + state->pads->try_compose ) ...> } // If the function accesses the filehandle, use fh->state instead @@ struct v4l2_subdev_fh *fh; @@ - fh->pad + fh->state @@ struct v4l2_subdev_fh fh; @@ - fh.pad + fh.state // Start of vsp1 specific @@ @@ struct vsp1_entity { ... - struct v4l2_subdev_pad_config *config; + struct v4l2_subdev_state *config; ... }; @@ symbol entity; @@ vsp1_entity_init(...) { ... entity->config = - v4l2_subdev_alloc_pad_config + v4l2_subdev_alloc_state (&entity->subdev); ... } @@ symbol entity; @@ vsp1_entity_destroy(...) { ... - v4l2_subdev_free_pad_config + v4l2_subdev_free_state (entity->config); ... } @exists@ identifier func =~ "(^vsp1.*)|(hsit_set_format)|(sru_enum_frame_size)|(sru_set_format)|(uif_get_selection)|(uif_set_selection)|(uds_enum_frame_size)|(uds_set_format)|(brx_set_format)|(brx_get_selection)|(histo_get_selection)|(histo_set_selection)|(brx_set_selection)"; symbol config; @@ func(...) { ... - struct v4l2_subdev_pad_config *config; + struct v4l2_subdev_state *config; ... } // End of vsp1 specific // Start of rcar specific @@ identifier sd; identifier pad_cfg; @@ rvin_try_format(...) { ... - struct v4l2_subdev_pad_config *pad_cfg; + struct v4l2_subdev_state *sd_state; ... - pad_cfg = v4l2_subdev_alloc_pad_config(sd); + sd_state = v4l2_subdev_alloc_state(sd); <... - pad_cfg + sd_state ...> - v4l2_subdev_free_pad_config(pad_cfg); + v4l2_subdev_free_state(sd_state); ... } // End of rcar specific // Start of rockchip specific @@ identifier func =~ "(rkisp1_rsz_get_pad_fmt)|(rkisp1_rsz_get_pad_crop)|(rkisp1_rsz_register)"; symbol rsz; symbol pad_cfg; @@ func(...) { + struct v4l2_subdev_state state = { .pads = rsz->pad_cfg }; ... - rsz->pad_cfg + &state ... } @@ identifier func =~ "(rkisp1_isp_get_pad_fmt)|(rkisp1_isp_get_pad_crop)"; symbol isp; symbol pad_cfg; @@ func(...) { + struct v4l2_subdev_state state = { .pads = isp->pad_cfg }; ... - isp->pad_cfg + &state ... } @@ symbol rkisp1; symbol isp; symbol pad_cfg; @@ rkisp1_isp_register(...) { + struct v4l2_subdev_state state = { .pads = rkisp1->isp.pad_cfg }; ... - rkisp1->isp.pad_cfg + &state ... } // End of rockchip specific // Start of tegra-video specific @@ identifier sd; identifier pad_cfg; @@ __tegra_channel_try_format(...) { ... - struct v4l2_subdev_pad_config *pad_cfg; + struct v4l2_subdev_state *sd_state; ... - pad_cfg = v4l2_subdev_alloc_pad_config(sd); + sd_state = v4l2_subdev_alloc_state(sd); <... - pad_cfg + sd_state ...> - v4l2_subdev_free_pad_config(pad_cfg); + v4l2_subdev_free_state(sd_state); ... } @@ identifier sd_state; @@ __tegra_channel_try_format(...) { ... struct v4l2_subdev_state *sd_state; <... - sd_state->try_crop + sd_state->pads->try_crop ...> } // End of tegra-video specific // Signed-off-by: Tomi Valkeinen Acked-by: Laurent Pinchart Acked-by: Sakari Ailus Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/i2c/adv748x/adv748x-afe.c | 13 +++++++------ drivers/media/i2c/adv748x/adv748x-csi2.c | 14 +++++++------- drivers/media/i2c/adv748x/adv748x-hdmi.c | 13 +++++++------ 3 files changed, 21 insertions(+), 19 deletions(-) (limited to 'drivers/media/i2c/adv748x') diff --git a/drivers/media/i2c/adv748x/adv748x-afe.c b/drivers/media/i2c/adv748x/adv748x-afe.c index 4052cf67bf16..02eabe10ab97 100644 --- a/drivers/media/i2c/adv748x/adv748x-afe.c +++ b/drivers/media/i2c/adv748x/adv748x-afe.c @@ -331,7 +331,7 @@ static int adv748x_afe_propagate_pixelrate(struct adv748x_afe *afe) } static int adv748x_afe_enum_mbus_code(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { if (code->index != 0) @@ -343,7 +343,7 @@ static int adv748x_afe_enum_mbus_code(struct v4l2_subdev *sd, } static int adv748x_afe_get_format(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *sdformat) { struct adv748x_afe *afe = adv748x_sd_to_afe(sd); @@ -354,7 +354,8 @@ static int adv748x_afe_get_format(struct v4l2_subdev *sd, return -EINVAL; if (sdformat->which == V4L2_SUBDEV_FORMAT_TRY) { - mbusformat = v4l2_subdev_get_try_format(sd, cfg, sdformat->pad); + mbusformat = v4l2_subdev_get_try_format(sd, sd_state, + sdformat->pad); sdformat->format = *mbusformat; } else { adv748x_afe_fill_format(afe, &sdformat->format); @@ -365,7 +366,7 @@ static int adv748x_afe_get_format(struct v4l2_subdev *sd, } static int adv748x_afe_set_format(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *sdformat) { struct v4l2_mbus_framefmt *mbusformat; @@ -375,9 +376,9 @@ static int adv748x_afe_set_format(struct v4l2_subdev *sd, return -EINVAL; if (sdformat->which == V4L2_SUBDEV_FORMAT_ACTIVE) - return adv748x_afe_get_format(sd, cfg, sdformat); + return adv748x_afe_get_format(sd, sd_state, sdformat); - mbusformat = v4l2_subdev_get_try_format(sd, cfg, sdformat->pad); + mbusformat = v4l2_subdev_get_try_format(sd, sd_state, sdformat->pad); *mbusformat = sdformat->format; return 0; diff --git a/drivers/media/i2c/adv748x/adv748x-csi2.c b/drivers/media/i2c/adv748x/adv748x-csi2.c index fa9278a08fde..589e9644fcdc 100644 --- a/drivers/media/i2c/adv748x/adv748x-csi2.c +++ b/drivers/media/i2c/adv748x/adv748x-csi2.c @@ -141,26 +141,26 @@ static const struct v4l2_subdev_video_ops adv748x_csi2_video_ops = { static struct v4l2_mbus_framefmt * adv748x_csi2_get_pad_format(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_state *sd_state, unsigned int pad, u32 which) { struct adv748x_csi2 *tx = adv748x_sd_to_csi2(sd); if (which == V4L2_SUBDEV_FORMAT_TRY) - return v4l2_subdev_get_try_format(sd, cfg, pad); + return v4l2_subdev_get_try_format(sd, sd_state, pad); return &tx->format; } static int adv748x_csi2_get_format(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *sdformat) { struct adv748x_csi2 *tx = adv748x_sd_to_csi2(sd); struct adv748x_state *state = tx->state; struct v4l2_mbus_framefmt *mbusformat; - mbusformat = adv748x_csi2_get_pad_format(sd, cfg, sdformat->pad, + mbusformat = adv748x_csi2_get_pad_format(sd, sd_state, sdformat->pad, sdformat->which); if (!mbusformat) return -EINVAL; @@ -175,7 +175,7 @@ static int adv748x_csi2_get_format(struct v4l2_subdev *sd, } static int adv748x_csi2_set_format(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *sdformat) { struct adv748x_csi2 *tx = adv748x_sd_to_csi2(sd); @@ -183,7 +183,7 @@ static int adv748x_csi2_set_format(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mbusformat; int ret = 0; - mbusformat = adv748x_csi2_get_pad_format(sd, cfg, sdformat->pad, + mbusformat = adv748x_csi2_get_pad_format(sd, sd_state, sdformat->pad, sdformat->which); if (!mbusformat) return -EINVAL; @@ -193,7 +193,7 @@ static int adv748x_csi2_set_format(struct v4l2_subdev *sd, if (sdformat->pad == ADV748X_CSI2_SOURCE) { const struct v4l2_mbus_framefmt *sink_fmt; - sink_fmt = adv748x_csi2_get_pad_format(sd, cfg, + sink_fmt = adv748x_csi2_get_pad_format(sd, sd_state, ADV748X_CSI2_SINK, sdformat->which); diff --git a/drivers/media/i2c/adv748x/adv748x-hdmi.c b/drivers/media/i2c/adv748x/adv748x-hdmi.c index c557f8fdf11a..52fa7bd75660 100644 --- a/drivers/media/i2c/adv748x/adv748x-hdmi.c +++ b/drivers/media/i2c/adv748x/adv748x-hdmi.c @@ -409,7 +409,7 @@ static int adv748x_hdmi_propagate_pixelrate(struct adv748x_hdmi *hdmi) } static int adv748x_hdmi_enum_mbus_code(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { if (code->index != 0) @@ -421,7 +421,7 @@ static int adv748x_hdmi_enum_mbus_code(struct v4l2_subdev *sd, } static int adv748x_hdmi_get_format(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *sdformat) { struct adv748x_hdmi *hdmi = adv748x_sd_to_hdmi(sd); @@ -431,7 +431,8 @@ static int adv748x_hdmi_get_format(struct v4l2_subdev *sd, return -EINVAL; if (sdformat->which == V4L2_SUBDEV_FORMAT_TRY) { - mbusformat = v4l2_subdev_get_try_format(sd, cfg, sdformat->pad); + mbusformat = v4l2_subdev_get_try_format(sd, sd_state, + sdformat->pad); sdformat->format = *mbusformat; } else { adv748x_hdmi_fill_format(hdmi, &sdformat->format); @@ -442,7 +443,7 @@ static int adv748x_hdmi_get_format(struct v4l2_subdev *sd, } static int adv748x_hdmi_set_format(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *sdformat) { struct v4l2_mbus_framefmt *mbusformat; @@ -451,9 +452,9 @@ static int adv748x_hdmi_set_format(struct v4l2_subdev *sd, return -EINVAL; if (sdformat->which == V4L2_SUBDEV_FORMAT_ACTIVE) - return adv748x_hdmi_get_format(sd, cfg, sdformat); + return adv748x_hdmi_get_format(sd, sd_state, sdformat); - mbusformat = v4l2_subdev_get_try_format(sd, cfg, sdformat->pad); + mbusformat = v4l2_subdev_get_try_format(sd, sd_state, sdformat->pad); *mbusformat = sdformat->format; return 0; -- cgit v1.2.3