Commit a16e2794 authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Mauro Carvalho Chehab

[media] v4l: vsp1: bru: Make the background color configurable

Expose the background color to userspace through the V4L2_CID_BG_COLOR
control.
Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
parent 9aca813e
......@@ -37,6 +37,32 @@ static inline void vsp1_bru_write(struct vsp1_bru *bru, u32 reg, u32 data)
vsp1_write(bru->entity.vsp1, reg, data);
}
/* -----------------------------------------------------------------------------
* Controls
*/
static int bru_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct vsp1_bru *bru =
container_of(ctrl->handler, struct vsp1_bru, ctrls);
if (!vsp1_entity_is_streaming(&bru->entity))
return 0;
switch (ctrl->id) {
case V4L2_CID_BG_COLOR:
vsp1_bru_write(bru, VI6_BRU_VIRRPF_COL, ctrl->val |
(0xff << VI6_BRU_VIRRPF_COL_A_SHIFT));
break;
}
return 0;
}
static const struct v4l2_ctrl_ops bru_ctrl_ops = {
.s_ctrl = bru_s_ctrl,
};
/* -----------------------------------------------------------------------------
* V4L2 Subdevice Core Operations
*/
......@@ -48,6 +74,11 @@ static int bru_s_stream(struct v4l2_subdev *subdev, int enable)
struct v4l2_mbus_framefmt *format;
unsigned int flags;
unsigned int i;
int ret;
ret = vsp1_entity_set_streaming(&bru->entity, enable);
if (ret < 0)
return ret;
if (!enable)
return 0;
......@@ -68,15 +99,11 @@ static int bru_s_stream(struct v4l2_subdev *subdev, int enable)
flags & V4L2_PIX_FMT_FLAG_PREMUL_ALPHA ?
0 : VI6_BRU_INCTRL_NRM);
/* Set the background position to cover the whole output image and
* set its color to opaque black.
*/
/* Set the background position to cover the whole output image. */
vsp1_bru_write(bru, VI6_BRU_VIRRPF_SIZE,
(format->width << VI6_BRU_VIRRPF_SIZE_HSIZE_SHIFT) |
(format->height << VI6_BRU_VIRRPF_SIZE_VSIZE_SHIFT));
vsp1_bru_write(bru, VI6_BRU_VIRRPF_LOC, 0);
vsp1_bru_write(bru, VI6_BRU_VIRRPF_COL,
0xff << VI6_BRU_VIRRPF_COL_A_SHIFT);
/* Route BRU input 1 as SRC input to the ROP unit and configure the ROP
* unit with a NOP operation to make BRU input 1 available as the
......@@ -407,5 +434,19 @@ struct vsp1_bru *vsp1_bru_create(struct vsp1_device *vsp1)
vsp1_entity_init_formats(subdev, NULL);
/* Initialize the control handler. */
v4l2_ctrl_handler_init(&bru->ctrls, 1);
v4l2_ctrl_new_std(&bru->ctrls, &bru_ctrl_ops, V4L2_CID_BG_COLOR,
0, 0xffffff, 1, 0);
bru->entity.subdev.ctrl_handler = &bru->ctrls;
if (bru->ctrls.error) {
dev_err(vsp1->dev, "bru: failed to initialize controls\n");
ret = bru->ctrls.error;
vsp1_entity_destroy(&bru->entity);
return ERR_PTR(ret);
}
return bru;
}
......@@ -14,6 +14,7 @@
#define __VSP1_BRU_H__
#include <media/media-entity.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-subdev.h>
#include "vsp1_entity.h"
......@@ -27,6 +28,8 @@ struct vsp1_rwpf;
struct vsp1_bru {
struct vsp1_entity entity;
struct v4l2_ctrl_handler ctrls;
struct {
struct vsp1_rwpf *rpf;
struct v4l2_rect compose;
......
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