mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 19:00:25 +00:00
[media] v4l: vsp1: lut: Expose configuration through a control
Replace the custom ioctl with a V4L2 control in order to standardize the API. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
parent
0220990f63
commit
42e89bed23
3 changed files with 54 additions and 62 deletions
|
@ -13,7 +13,6 @@
|
|||
|
||||
#include <linux/device.h>
|
||||
#include <linux/gfp.h>
|
||||
#include <linux/vsp1.h>
|
||||
|
||||
#include <media/v4l2-subdev.h>
|
||||
|
||||
|
@ -35,43 +34,60 @@ static inline void vsp1_lut_write(struct vsp1_lut *lut, struct vsp1_dl_list *dl,
|
|||
}
|
||||
|
||||
/* -----------------------------------------------------------------------------
|
||||
* V4L2 Subdevice Core Operations
|
||||
* Controls
|
||||
*/
|
||||
|
||||
static int lut_set_table(struct vsp1_lut *lut, struct vsp1_lut_config *config)
|
||||
#define V4L2_CID_VSP1_LUT_TABLE (V4L2_CID_USER_BASE | 0x1001)
|
||||
|
||||
static int lut_set_table(struct vsp1_lut *lut, struct v4l2_ctrl *ctrl)
|
||||
{
|
||||
struct vsp1_dl_body *dlb;
|
||||
unsigned int i;
|
||||
|
||||
dlb = vsp1_dl_fragment_alloc(lut->entity.vsp1, ARRAY_SIZE(config->lut));
|
||||
dlb = vsp1_dl_fragment_alloc(lut->entity.vsp1, 256);
|
||||
if (!dlb)
|
||||
return -ENOMEM;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(config->lut); ++i)
|
||||
for (i = 0; i < 256; ++i)
|
||||
vsp1_dl_fragment_write(dlb, VI6_LUT_TABLE + 4 * i,
|
||||
config->lut[i]);
|
||||
ctrl->p_new.p_u32[i]);
|
||||
|
||||
mutex_lock(&lut->lock);
|
||||
swap(lut->lut, dlb);
|
||||
mutex_unlock(&lut->lock);
|
||||
|
||||
vsp1_dl_fragment_free(dlb);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static long lut_ioctl(struct v4l2_subdev *subdev, unsigned int cmd, void *arg)
|
||||
static int lut_s_ctrl(struct v4l2_ctrl *ctrl)
|
||||
{
|
||||
struct vsp1_lut *lut = to_lut(subdev);
|
||||
struct vsp1_lut *lut =
|
||||
container_of(ctrl->handler, struct vsp1_lut, ctrls);
|
||||
|
||||
switch (cmd) {
|
||||
case VIDIOC_VSP1_LUT_CONFIG:
|
||||
return lut_set_table(lut, arg);
|
||||
|
||||
default:
|
||||
return -ENOIOCTLCMD;
|
||||
switch (ctrl->id) {
|
||||
case V4L2_CID_VSP1_LUT_TABLE:
|
||||
lut_set_table(lut, ctrl);
|
||||
break;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct v4l2_ctrl_ops lut_ctrl_ops = {
|
||||
.s_ctrl = lut_s_ctrl,
|
||||
};
|
||||
|
||||
static const struct v4l2_ctrl_config lut_table_control = {
|
||||
.ops = &lut_ctrl_ops,
|
||||
.id = V4L2_CID_VSP1_LUT_TABLE,
|
||||
.name = "Look-Up Table",
|
||||
.type = V4L2_CTRL_TYPE_U32,
|
||||
.min = 0x00000000,
|
||||
.max = 0x00ffffff,
|
||||
.step = 1,
|
||||
.def = 0,
|
||||
.dims = { 256},
|
||||
};
|
||||
|
||||
/* -----------------------------------------------------------------------------
|
||||
* V4L2 Subdevice Pad Operations
|
||||
*/
|
||||
|
@ -147,10 +163,6 @@ static int lut_set_format(struct v4l2_subdev *subdev,
|
|||
* V4L2 Subdevice Operations
|
||||
*/
|
||||
|
||||
static const struct v4l2_subdev_core_ops lut_core_ops = {
|
||||
.ioctl = lut_ioctl,
|
||||
};
|
||||
|
||||
static const struct v4l2_subdev_pad_ops lut_pad_ops = {
|
||||
.init_cfg = vsp1_entity_init_cfg,
|
||||
.enum_mbus_code = lut_enum_mbus_code,
|
||||
|
@ -160,7 +172,6 @@ static const struct v4l2_subdev_pad_ops lut_pad_ops = {
|
|||
};
|
||||
|
||||
static const struct v4l2_subdev_ops lut_ops = {
|
||||
.core = &lut_core_ops,
|
||||
.pad = &lut_pad_ops,
|
||||
};
|
||||
|
||||
|
@ -176,12 +187,14 @@ static void lut_configure(struct vsp1_entity *entity,
|
|||
|
||||
vsp1_lut_write(lut, dl, VI6_LUT_CTRL, VI6_LUT_CTRL_EN);
|
||||
|
||||
mutex_lock(&lut->lock);
|
||||
mutex_lock(lut->ctrls.lock);
|
||||
|
||||
if (lut->lut) {
|
||||
vsp1_dl_list_add_fragment(dl, lut->lut);
|
||||
lut->lut = NULL;
|
||||
}
|
||||
mutex_unlock(&lut->lock);
|
||||
|
||||
mutex_unlock(lut->ctrls.lock);
|
||||
}
|
||||
|
||||
static const struct vsp1_entity_operations lut_entity_ops = {
|
||||
|
@ -201,8 +214,6 @@ struct vsp1_lut *vsp1_lut_create(struct vsp1_device *vsp1)
|
|||
if (lut == NULL)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
mutex_init(&lut->lock);
|
||||
|
||||
lut->entity.ops = &lut_entity_ops;
|
||||
lut->entity.type = VSP1_ENTITY_LUT;
|
||||
|
||||
|
@ -211,5 +222,20 @@ struct vsp1_lut *vsp1_lut_create(struct vsp1_device *vsp1)
|
|||
if (ret < 0)
|
||||
return ERR_PTR(ret);
|
||||
|
||||
/* Initialize the control handler. */
|
||||
v4l2_ctrl_handler_init(&lut->ctrls, 1);
|
||||
v4l2_ctrl_new_custom(&lut->ctrls, &lut_table_control, NULL);
|
||||
|
||||
lut->entity.subdev.ctrl_handler = &lut->ctrls;
|
||||
|
||||
if (lut->ctrls.error) {
|
||||
dev_err(vsp1->dev, "lut: failed to initialize controls\n");
|
||||
ret = lut->ctrls.error;
|
||||
vsp1_entity_destroy(&lut->entity);
|
||||
return ERR_PTR(ret);
|
||||
}
|
||||
|
||||
v4l2_ctrl_handler_setup(&lut->ctrls);
|
||||
|
||||
return lut;
|
||||
}
|
||||
|
|
|
@ -13,9 +13,8 @@
|
|||
#ifndef __VSP1_LUT_H__
|
||||
#define __VSP1_LUT_H__
|
||||
|
||||
#include <linux/mutex.h>
|
||||
|
||||
#include <media/media-entity.h>
|
||||
#include <media/v4l2-ctrls.h>
|
||||
#include <media/v4l2-subdev.h>
|
||||
|
||||
#include "vsp1_entity.h"
|
||||
|
@ -28,7 +27,8 @@ struct vsp1_device;
|
|||
struct vsp1_lut {
|
||||
struct vsp1_entity entity;
|
||||
|
||||
struct mutex lock;
|
||||
struct v4l2_ctrl_handler ctrls;
|
||||
|
||||
struct vsp1_dl_body *lut;
|
||||
};
|
||||
|
||||
|
|
|
@ -1,34 +0,0 @@
|
|||
/*
|
||||
* vsp1.h
|
||||
*
|
||||
* Renesas R-Car VSP1 - User-space API
|
||||
*
|
||||
* Copyright (C) 2013 Renesas Corporation
|
||||
*
|
||||
* Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
||||
*
|
||||
* 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
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef __VSP1_USER_H__
|
||||
#define __VSP1_USER_H__
|
||||
|
||||
#include <linux/types.h>
|
||||
#include <linux/videodev2.h>
|
||||
|
||||
/*
|
||||
* Private IOCTLs
|
||||
*
|
||||
* VIDIOC_VSP1_LUT_CONFIG - Configure the lookup table
|
||||
*/
|
||||
|
||||
#define VIDIOC_VSP1_LUT_CONFIG \
|
||||
_IOWR('V', BASE_VIDIOC_PRIVATE + 1, struct vsp1_lut_config)
|
||||
|
||||
struct vsp1_lut_config {
|
||||
__u32 lut[256];
|
||||
};
|
||||
|
||||
#endif /* __VSP1_USER_H__ */
|
Loading…
Reference in a new issue