mirror of https://gitee.com/openkylin/linux.git
[media] v4l: vsp1: Add HST and HSI support
The Hue Saturation value Transform and Hue Saturation value Inverse transform entities convert from RGB to HSV and back. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Laurent Pinchart
Mauro Carvalho Chehab
parent
7e941a7999
commit
5cdf5741d6
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@ -1,5 +1,5 @@
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vsp1-y := vsp1_drv.o vsp1_entity.o vsp1_video.o
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vsp1-y += vsp1_rpf.o vsp1_rwpf.o vsp1_wpf.o
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vsp1-y += vsp1_lif.o vsp1_uds.o
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vsp1-y += vsp1_hsit.o vsp1_lif.o vsp1_uds.o
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obj-$(CONFIG_VIDEO_RENESAS_VSP1) += vsp1.o
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@ -28,6 +28,7 @@ struct clk;
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struct device;
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struct vsp1_platform_data;
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struct vsp1_hsit;
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struct vsp1_lif;
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struct vsp1_rwpf;
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struct vsp1_uds;
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@ -47,6 +48,8 @@ struct vsp1_device {
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struct mutex lock;
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int ref_count;
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struct vsp1_hsit *hsi;
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struct vsp1_hsit *hst;
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struct vsp1_lif *lif;
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struct vsp1_rwpf *rpf[VPS1_MAX_RPF];
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struct vsp1_uds *uds[VPS1_MAX_UDS];
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@ -20,6 +20,7 @@
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#include <linux/videodev2.h>
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#include "vsp1.h"
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#include "vsp1_hsit.h"
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#include "vsp1_lif.h"
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#include "vsp1_rwpf.h"
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#include "vsp1_uds.h"
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@ -152,6 +153,22 @@ static int vsp1_create_entities(struct vsp1_device *vsp1)
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}
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/* Instantiate all the entities. */
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vsp1->hsi = vsp1_hsit_create(vsp1, true);
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if (IS_ERR(vsp1->hsi)) {
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ret = PTR_ERR(vsp1->hsi);
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goto done;
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}
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list_add_tail(&vsp1->hsi->entity.list_dev, &vsp1->entities);
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vsp1->hst = vsp1_hsit_create(vsp1, false);
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if (IS_ERR(vsp1->hst)) {
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ret = PTR_ERR(vsp1->hst);
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goto done;
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}
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list_add_tail(&vsp1->hst->entity.list_dev, &vsp1->entities);
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if (vsp1->pdata->features & VSP1_HAS_LIF) {
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vsp1->lif = vsp1_lif_create(vsp1);
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if (IS_ERR(vsp1->lif)) {
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@ -122,6 +122,8 @@ int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
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unsigned int id;
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unsigned int reg;
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} routes[] = {
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{ VI6_DPR_NODE_HSI, VI6_DPR_HSI_ROUTE },
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{ VI6_DPR_NODE_HST, VI6_DPR_HST_ROUTE },
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{ VI6_DPR_NODE_LIF, 0 },
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{ VI6_DPR_NODE_RPF(0), VI6_DPR_RPF_ROUTE(0) },
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{ VI6_DPR_NODE_RPF(1), VI6_DPR_RPF_ROUTE(1) },
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@ -20,6 +20,8 @@
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struct vsp1_device;
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enum vsp1_entity_type {
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VSP1_ENTITY_HSI,
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VSP1_ENTITY_HST,
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VSP1_ENTITY_LIF,
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VSP1_ENTITY_RPF,
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VSP1_ENTITY_UDS,
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@ -0,0 +1,222 @@
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/*
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* vsp1_hsit.c -- R-Car VSP1 Hue Saturation value (Inverse) Transform
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*
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* Copyright (C) 2013 Renesas Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/device.h>
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#include <linux/gfp.h>
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#include <media/v4l2-subdev.h>
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#include "vsp1.h"
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#include "vsp1_hsit.h"
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#define HSIT_MIN_SIZE 4U
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#define HSIT_MAX_SIZE 8190U
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/* -----------------------------------------------------------------------------
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* Device Access
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*/
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static inline u32 vsp1_hsit_read(struct vsp1_hsit *hsit, u32 reg)
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{
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return vsp1_read(hsit->entity.vsp1, reg);
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}
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static inline void vsp1_hsit_write(struct vsp1_hsit *hsit, u32 reg, u32 data)
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{
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vsp1_write(hsit->entity.vsp1, reg, data);
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}
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/* -----------------------------------------------------------------------------
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* V4L2 Subdevice Core Operations
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*/
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static int hsit_s_stream(struct v4l2_subdev *subdev, int enable)
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{
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struct vsp1_hsit *hsit = to_hsit(subdev);
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if (!enable)
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return 0;
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if (hsit->inverse)
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vsp1_hsit_write(hsit, VI6_HSI_CTRL, VI6_HSI_CTRL_EN);
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else
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vsp1_hsit_write(hsit, VI6_HST_CTRL, VI6_HST_CTRL_EN);
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return 0;
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}
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/* -----------------------------------------------------------------------------
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* V4L2 Subdevice Pad Operations
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*/
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static int hsit_enum_mbus_code(struct v4l2_subdev *subdev,
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struct v4l2_subdev_fh *fh,
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struct v4l2_subdev_mbus_code_enum *code)
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{
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struct vsp1_hsit *hsit = to_hsit(subdev);
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if (code->index > 0)
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return -EINVAL;
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if ((code->pad == HSIT_PAD_SINK && !hsit->inverse) |
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(code->pad == HSIT_PAD_SOURCE && hsit->inverse))
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code->code = V4L2_MBUS_FMT_ARGB8888_1X32;
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else
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code->code = V4L2_MBUS_FMT_AHSV8888_1X32;
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return 0;
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}
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static int hsit_enum_frame_size(struct v4l2_subdev *subdev,
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struct v4l2_subdev_fh *fh,
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struct v4l2_subdev_frame_size_enum *fse)
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{
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struct v4l2_mbus_framefmt *format;
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format = v4l2_subdev_get_try_format(fh, fse->pad);
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if (fse->index || fse->code != format->code)
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return -EINVAL;
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if (fse->pad == HSIT_PAD_SINK) {
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fse->min_width = HSIT_MIN_SIZE;
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fse->max_width = HSIT_MAX_SIZE;
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fse->min_height = HSIT_MIN_SIZE;
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fse->max_height = HSIT_MAX_SIZE;
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} else {
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/* The size on the source pad are fixed and always identical to
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* the size on the sink pad.
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*/
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fse->min_width = format->width;
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fse->max_width = format->width;
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fse->min_height = format->height;
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fse->max_height = format->height;
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}
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return 0;
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}
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static int hsit_get_format(struct v4l2_subdev *subdev,
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struct v4l2_subdev_fh *fh,
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struct v4l2_subdev_format *fmt)
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{
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struct vsp1_hsit *hsit = to_hsit(subdev);
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fmt->format = *vsp1_entity_get_pad_format(&hsit->entity, fh, fmt->pad,
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fmt->which);
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return 0;
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}
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static int hsit_set_format(struct v4l2_subdev *subdev,
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struct v4l2_subdev_fh *fh,
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struct v4l2_subdev_format *fmt)
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{
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struct vsp1_hsit *hsit = to_hsit(subdev);
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struct v4l2_mbus_framefmt *format;
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format = vsp1_entity_get_pad_format(&hsit->entity, fh, fmt->pad,
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fmt->which);
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if (fmt->pad == HSIT_PAD_SOURCE) {
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/* The HST and HSI output format code and resolution can't be
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* modified.
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*/
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fmt->format = *format;
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return 0;
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}
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format->code = hsit->inverse ? V4L2_MBUS_FMT_AHSV8888_1X32
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: V4L2_MBUS_FMT_ARGB8888_1X32;
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format->width = clamp_t(unsigned int, fmt->format.width,
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HSIT_MIN_SIZE, HSIT_MAX_SIZE);
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format->height = clamp_t(unsigned int, fmt->format.height,
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HSIT_MIN_SIZE, HSIT_MAX_SIZE);
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format->field = V4L2_FIELD_NONE;
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format->colorspace = V4L2_COLORSPACE_SRGB;
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fmt->format = *format;
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/* Propagate the format to the source pad. */
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format = vsp1_entity_get_pad_format(&hsit->entity, fh, HSIT_PAD_SOURCE,
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fmt->which);
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*format = fmt->format;
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format->code = hsit->inverse ? V4L2_MBUS_FMT_ARGB8888_1X32
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: V4L2_MBUS_FMT_AHSV8888_1X32;
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return 0;
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}
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/* -----------------------------------------------------------------------------
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* V4L2 Subdevice Operations
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*/
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static struct v4l2_subdev_video_ops hsit_video_ops = {
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.s_stream = hsit_s_stream,
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};
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static struct v4l2_subdev_pad_ops hsit_pad_ops = {
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.enum_mbus_code = hsit_enum_mbus_code,
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.enum_frame_size = hsit_enum_frame_size,
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.get_fmt = hsit_get_format,
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.set_fmt = hsit_set_format,
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};
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static struct v4l2_subdev_ops hsit_ops = {
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.video = &hsit_video_ops,
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.pad = &hsit_pad_ops,
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};
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/* -----------------------------------------------------------------------------
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* Initialization and Cleanup
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*/
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struct vsp1_hsit *vsp1_hsit_create(struct vsp1_device *vsp1, bool inverse)
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{
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struct v4l2_subdev *subdev;
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struct vsp1_hsit *hsit;
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int ret;
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hsit = devm_kzalloc(vsp1->dev, sizeof(*hsit), GFP_KERNEL);
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if (hsit == NULL)
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return ERR_PTR(-ENOMEM);
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hsit->inverse = inverse;
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if (inverse) {
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hsit->entity.type = VSP1_ENTITY_HSI;
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hsit->entity.id = VI6_DPR_NODE_HSI;
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} else {
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hsit->entity.type = VSP1_ENTITY_HST;
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hsit->entity.id = VI6_DPR_NODE_HST;
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}
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ret = vsp1_entity_init(vsp1, &hsit->entity, 2);
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if (ret < 0)
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return ERR_PTR(ret);
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/* Initialize the V4L2 subdev. */
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subdev = &hsit->entity.subdev;
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v4l2_subdev_init(subdev, &hsit_ops);
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subdev->entity.ops = &vsp1_media_ops;
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subdev->internal_ops = &vsp1_subdev_internal_ops;
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snprintf(subdev->name, sizeof(subdev->name), "%s %s",
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dev_name(vsp1->dev), inverse ? "hsi" : "hst");
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v4l2_set_subdevdata(subdev, hsit);
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subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
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vsp1_entity_init_formats(subdev, NULL);
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return hsit;
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}
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@ -0,0 +1,38 @@
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/*
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* vsp1_hsit.h -- R-Car VSP1 Hue Saturation value (Inverse) Transform
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*
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* Copyright (C) 2013 Renesas Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __VSP1_HSIT_H__
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#define __VSP1_HSIT_H__
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#include <media/media-entity.h>
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#include <media/v4l2-subdev.h>
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#include "vsp1_entity.h"
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struct vsp1_device;
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#define HSIT_PAD_SINK 0
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#define HSIT_PAD_SOURCE 1
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struct vsp1_hsit {
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struct vsp1_entity entity;
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bool inverse;
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};
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static inline struct vsp1_hsit *to_hsit(struct v4l2_subdev *subdev)
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{
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return container_of(subdev, struct vsp1_hsit, entity.subdev);
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}
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struct vsp1_hsit *vsp1_hsit_create(struct vsp1_device *vsp1, bool inverse);
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#endif /* __VSP1_HSIT_H__ */
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@ -424,12 +424,14 @@
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*/
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#define VI6_HST_CTRL 0x2a00
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#define VI6_HST_CTRL_EN (1 << 0)
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/* -----------------------------------------------------------------------------
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* HSI Control Registers
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*/
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#define VI6_HSI_CTRL 0x2b00
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#define VI6_HSI_CTRL_EN (1 << 0)
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/* -----------------------------------------------------------------------------
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* BRU Control Registers
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