/*
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* V4L2 subdev interface library
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*
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* Copyright (C) 2010-2014 Ideas on board SPRL
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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 Lesser General Public License as published
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* by the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <ctype.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <linux/v4l2-subdev.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "mediactl-priv.h"
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#include "mediactl.h"
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#include "tools.h"
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#include "v4l2subdev.h"
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#ifdef LOG_TAG
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#undef LOG_TAG
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#endif
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#define LOG_TAG "aiqtool"
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int v4l2_subdev_open(struct media_entity* entity)
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{
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if (entity->fd != -1) {
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return 0;
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}
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entity->fd = open(entity->devname, O_RDWR);
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if (entity->fd == -1) {
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int ret = -errno;
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media_dbg(entity->media, "%s: Failed to open subdev device node %s\n", __func__, entity->devname);
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return ret;
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}
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return 0;
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}
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void v4l2_subdev_close(struct media_entity* entity)
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{
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close(entity->fd);
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entity->fd = -1;
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}
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int v4l2_subdev_get_format(struct media_entity* entity, struct v4l2_mbus_framefmt* format, unsigned int pad,
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enum v4l2_subdev_format_whence which)
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{
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struct v4l2_subdev_format fmt;
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int ret;
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ret = v4l2_subdev_open(entity);
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if (ret < 0) {
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return ret;
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}
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memset(&fmt, 0, sizeof(fmt));
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fmt.pad = pad;
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fmt.which = which;
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ret = ioctl(entity->fd, VIDIOC_SUBDEV_G_FMT, &fmt);
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if (ret < 0) {
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return -errno;
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}
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*format = fmt.format;
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return 0;
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}
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int v4l2_subdev_set_format(struct media_entity* entity, struct v4l2_mbus_framefmt* format, unsigned int pad,
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enum v4l2_subdev_format_whence which)
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{
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struct v4l2_subdev_format fmt;
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int ret;
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ret = v4l2_subdev_open(entity);
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if (ret < 0) {
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return ret;
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}
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memset(&fmt, 0, sizeof(fmt));
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fmt.pad = pad;
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fmt.which = which;
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fmt.format = *format;
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ret = ioctl(entity->fd, VIDIOC_SUBDEV_S_FMT, &fmt);
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if (ret < 0) {
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return -errno;
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}
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*format = fmt.format;
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return 0;
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}
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int v4l2_subdev_get_selection(struct media_entity* entity, struct v4l2_rect* rect, unsigned int pad,
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unsigned int target, enum v4l2_subdev_format_whence which)
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{
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union {
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struct v4l2_subdev_selection sel;
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struct v4l2_subdev_crop crop;
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} u;
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int ret;
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ret = v4l2_subdev_open(entity);
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if (ret < 0) {
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return ret;
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}
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memset(&u.sel, 0, sizeof(u.sel));
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u.sel.pad = pad;
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u.sel.target = target;
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u.sel.which = which;
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ret = ioctl(entity->fd, VIDIOC_SUBDEV_G_SELECTION, &u.sel);
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if (ret >= 0) {
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*rect = u.sel.r;
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return 0;
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}
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if (errno != ENOTTY || target != V4L2_SEL_TGT_CROP) {
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return -errno;
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}
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memset(&u.crop, 0, sizeof(u.crop));
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u.crop.pad = pad;
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u.crop.which = which;
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ret = ioctl(entity->fd, VIDIOC_SUBDEV_G_CROP, &u.crop);
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if (ret < 0) {
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return -errno;
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}
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*rect = u.crop.rect;
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return 0;
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}
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int v4l2_subdev_set_selection(struct media_entity* entity, struct v4l2_rect* rect, unsigned int pad,
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unsigned int target, enum v4l2_subdev_format_whence which)
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{
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union {
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struct v4l2_subdev_selection sel;
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struct v4l2_subdev_crop crop;
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} u;
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int ret;
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ret = v4l2_subdev_open(entity);
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if (ret < 0) {
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return ret;
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}
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memset(&u.sel, 0, sizeof(u.sel));
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u.sel.pad = pad;
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u.sel.target = target;
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u.sel.which = which;
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u.sel.r = *rect;
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ret = ioctl(entity->fd, VIDIOC_SUBDEV_S_SELECTION, &u.sel);
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if (ret >= 0) {
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*rect = u.sel.r;
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return 0;
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}
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if (errno != ENOTTY || target != V4L2_SEL_TGT_CROP) {
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return -errno;
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}
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memset(&u.crop, 0, sizeof(u.crop));
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u.crop.pad = pad;
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u.crop.which = which;
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u.crop.rect = *rect;
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ret = ioctl(entity->fd, VIDIOC_SUBDEV_S_CROP, &u.crop);
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if (ret < 0) {
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return -errno;
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}
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*rect = u.crop.rect;
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return 0;
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}
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int v4l2_subdev_get_dv_timings_caps(struct media_entity* entity, struct v4l2_dv_timings_cap* caps)
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{
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unsigned int pad = caps->pad;
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int ret;
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ret = v4l2_subdev_open(entity);
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if (ret < 0) {
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return ret;
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}
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memset(caps, 0, sizeof(*caps));
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caps->pad = pad;
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ret = ioctl(entity->fd, VIDIOC_SUBDEV_DV_TIMINGS_CAP, caps);
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if (ret < 0) {
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return -errno;
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}
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return 0;
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}
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int v4l2_subdev_query_dv_timings(struct media_entity* entity, struct v4l2_dv_timings* timings)
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{
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int ret;
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ret = v4l2_subdev_open(entity);
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if (ret < 0) {
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return ret;
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}
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memset(timings, 0, sizeof(*timings));
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ret = ioctl(entity->fd, VIDIOC_SUBDEV_QUERY_DV_TIMINGS, timings);
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if (ret < 0) {
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return -errno;
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}
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return 0;
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}
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int v4l2_subdev_get_dv_timings(struct media_entity* entity, struct v4l2_dv_timings* timings)
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{
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int ret;
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ret = v4l2_subdev_open(entity);
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if (ret < 0) {
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return ret;
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}
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memset(timings, 0, sizeof(*timings));
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ret = ioctl(entity->fd, VIDIOC_SUBDEV_G_DV_TIMINGS, timings);
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if (ret < 0) {
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return -errno;
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}
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return 0;
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}
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int v4l2_subdev_set_dv_timings(struct media_entity* entity, struct v4l2_dv_timings* timings)
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{
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int ret;
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ret = v4l2_subdev_open(entity);
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if (ret < 0) {
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return ret;
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}
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ret = ioctl(entity->fd, VIDIOC_SUBDEV_S_DV_TIMINGS, timings);
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if (ret < 0) {
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return -errno;
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}
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return 0;
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}
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int v4l2_subdev_get_frame_interval(struct media_entity* entity, struct v4l2_fract* interval, unsigned int pad)
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{
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struct v4l2_subdev_frame_interval ival;
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int ret;
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ret = v4l2_subdev_open(entity);
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if (ret < 0) {
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return ret;
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}
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memset(&ival, 0, sizeof(ival));
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ival.pad = pad;
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ret = ioctl(entity->fd, VIDIOC_SUBDEV_G_FRAME_INTERVAL, &ival);
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if (ret < 0) {
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return -errno;
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}
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*interval = ival.interval;
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return 0;
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}
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int v4l2_subdev_set_frame_interval(struct media_entity* entity, struct v4l2_fract* interval, unsigned int pad)
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{
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struct v4l2_subdev_frame_interval ival;
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int ret;
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ret = v4l2_subdev_open(entity);
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if (ret < 0) {
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return ret;
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}
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memset(&ival, 0, sizeof(ival));
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ival.pad = pad;
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ival.interval = *interval;
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ret = ioctl(entity->fd, VIDIOC_SUBDEV_S_FRAME_INTERVAL, &ival);
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if (ret < 0) {
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return -errno;
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}
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*interval = ival.interval;
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return 0;
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}
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static int v4l2_subdev_parse_format(struct media_device* media, struct v4l2_mbus_framefmt* format, const char* p,
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char** endp)
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{
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enum v4l2_mbus_pixelcode code;
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unsigned int width, height;
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char* fmt;
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char* end;
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/*
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* Compatibility with the old syntax: consider space as valid
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* separator between the media bus pixel code and the size.
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*/
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for (; isspace(*p); ++p)
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;
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for (end = (char*)p; *end != '/' && *end != ' ' && *end != '\0'; ++end)
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;
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fmt = strndup(p, end - p);
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if (!fmt) {
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return -ENOMEM;
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}
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code = v4l2_subdev_string_to_pixelcode(fmt);
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free(fmt);
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if (code == (enum v4l2_mbus_pixelcode) - 1) {
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media_dbg(media, "Invalid pixel code '%.*s'\n", end - p, p);
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return -EINVAL;
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}
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p = end + 1;
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width = strtoul(p, &end, 10);
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if (*end != 'x') {
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media_dbg(media, "Expected 'x'\n");
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return -EINVAL;
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}
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p = end + 1;
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height = strtoul(p, &end, 10);
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*endp = end;
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memset(format, 0, sizeof(*format));
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format->width = width;
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format->height = height;
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format->code = code;
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return 0;
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}
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static int v4l2_subdev_parse_rectangle(struct media_device* media, struct v4l2_rect* r, const char* p, char** endp)
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{
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char* end;
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if (*p++ != '(') {
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media_dbg(media, "Expected '('\n");
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*endp = (char*)p - 1;
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return -EINVAL;
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}
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r->left = strtoul(p, &end, 10);
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if (*end != ',') {
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media_dbg(media, "Expected ','\n");
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*endp = end;
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return -EINVAL;
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}
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p = end + 1;
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r->top = strtoul(p, &end, 10);
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if (*end++ != ')') {
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media_dbg(media, "Expected ')'\n");
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*endp = end - 1;
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return -EINVAL;
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}
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if (*end != '/') {
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media_dbg(media, "Expected '/'\n");
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*endp = end;
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return -EINVAL;
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}
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p = end + 1;
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r->width = strtoul(p, &end, 10);
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if (*end != 'x') {
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media_dbg(media, "Expected 'x'\n");
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*endp = end;
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return -EINVAL;
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}
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p = end + 1;
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r->height = strtoul(p, &end, 10);
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*endp = end;
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return 0;
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}
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static int v4l2_subdev_parse_frame_interval(struct media_device* media, struct v4l2_fract* interval, const char* p,
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char** endp)
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{
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char* end;
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for (; isspace(*p); ++p)
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;
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interval->numerator = strtoul(p, &end, 10);
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for (p = end; isspace(*p); ++p)
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;
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if (*p++ != '/') {
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media_dbg(media, "Expected '/'\n");
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*endp = (char*)p - 1;
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return -EINVAL;
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}
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for (; isspace(*p); ++p)
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;
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interval->denominator = strtoul(p, &end, 10);
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*endp = end;
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return 0;
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}
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/*
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* The debate over whether this function should be named icanhasstr() instead
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* has been strong and heated. If you feel like this would be an important
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* change, patches are welcome (or not).
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*/
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static bool strhazit(const char* str, const char** p)
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{
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int len = strlen(str);
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if (strncmp(str, *p, len)) {
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return false;
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}
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for (*p += len; isspace(**p); ++*p)
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;
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return true;
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}
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static struct media_pad* v4l2_subdev_parse_pad_format(struct media_device* media, struct v4l2_mbus_framefmt* format,
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struct v4l2_rect* crop, struct v4l2_rect* compose,
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struct v4l2_fract* interval, const char* p, char** endp)
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{
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struct media_pad* pad;
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bool first;
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char* end;
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int ret;
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for (; isspace(*p); ++p)
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;
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pad = media_parse_pad(media, p, &end);
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if (pad == NULL) {
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*endp = end;
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return NULL;
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}
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for (p = end; isspace(*p); ++p)
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;
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if (*p++ != '[') {
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media_dbg(media, "Expected '['\n");
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*endp = (char*)p - 1;
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return NULL;
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}
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for (first = true;; first = false) {
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for (; isspace(*p); p++)
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;
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/*
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* Backward compatibility: if the first property starts with an
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* uppercase later, process it as a format description.
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*/
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if (strhazit("fmt:", &p) || (first && isupper(*p))) {
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ret = v4l2_subdev_parse_format(media, format, p, &end);
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if (ret < 0) {
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*endp = end;
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return NULL;
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}
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p = end;
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continue;
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}
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if (strhazit("field:", &p)) {
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enum v4l2_field field;
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char* strfield;
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for (end = (char*)p; isalpha(*end) || *end == '-'; ++end)
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;
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strfield = strndup(p, end - p);
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if (!strfield) {
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*endp = (char*)p;
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return NULL;
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}
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field = v4l2_subdev_string_to_field(strfield);
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free(strfield);
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if (field == (enum v4l2_field) - 1) {
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media_dbg(media, "Invalid field value '%*s'\n", end - p, p);
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*endp = (char*)p;
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return NULL;
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}
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format->field = field;
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p = end;
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continue;
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}
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if (strhazit("colorspace:", &p)) {
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enum v4l2_colorspace colorspace;
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char* strfield;
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for (end = (char*)p; isalnum(*end) || *end == '-'; ++end)
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;
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strfield = strndup(p, end - p);
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if (!strfield) {
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*endp = (char*)p;
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return NULL;
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}
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colorspace = v4l2_subdev_string_to_colorspace(strfield);
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free(strfield);
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if (colorspace == (enum v4l2_colorspace) - 1) {
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media_dbg(media, "Invalid colorspace value '%*s'\n", end - p, p);
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*endp = (char*)p;
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return NULL;
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}
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format->colorspace = colorspace;
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p = end;
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continue;
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}
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if (strhazit("xfer:", &p)) {
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enum v4l2_xfer_func xfer_func;
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char* strfield;
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for (end = (char*)p; isalnum(*end) || *end == '-'; ++end)
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;
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strfield = strndup(p, end - p);
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if (!strfield) {
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*endp = (char*)p;
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return NULL;
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}
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xfer_func = v4l2_subdev_string_to_xfer_func(strfield);
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free(strfield);
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if (xfer_func == (enum v4l2_xfer_func) - 1) {
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media_dbg(media, "Invalid transfer function value '%*s'\n", end - p, p);
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*endp = (char*)p;
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return NULL;
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}
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format->xfer_func = xfer_func;
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p = end;
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continue;
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}
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if (strhazit("ycbcr:", &p)) {
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enum v4l2_ycbcr_encoding ycbcr_enc;
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char* strfield;
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for (end = (char*)p; isalnum(*end) || *end == '-'; ++end)
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;
|
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strfield = strndup(p, end - p);
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if (!strfield) {
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*endp = (char*)p;
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return NULL;
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}
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ycbcr_enc = v4l2_subdev_string_to_ycbcr_encoding(strfield);
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free(strfield);
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if (ycbcr_enc == (enum v4l2_ycbcr_encoding) - 1) {
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media_dbg(media, "Invalid YCbCr encoding value '%*s'\n", end - p, p);
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*endp = (char*)p;
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return NULL;
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}
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format->ycbcr_enc = ycbcr_enc;
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p = end;
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continue;
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}
|
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if (strhazit("quantization:", &p)) {
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enum v4l2_quantization quantization;
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char* strfield;
|
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for (end = (char*)p; isalnum(*end) || *end == '-'; ++end)
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;
|
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strfield = strndup(p, end - p);
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if (!strfield) {
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*endp = (char*)p;
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return NULL;
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}
|
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quantization = v4l2_subdev_string_to_quantization(strfield);
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free(strfield);
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if (quantization == (enum v4l2_quantization) - 1) {
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media_dbg(media, "Invalid quantization value '%*s'\n", end - p, p);
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*endp = (char*)p;
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return NULL;
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}
|
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format->quantization = quantization;
|
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p = end;
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continue;
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}
|
|
/*
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* Backward compatibility: crop rectangles can be specified
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* implicitly without the 'crop:' property name.
|
*/
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if (strhazit("crop:", &p) || *p == '(') {
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ret = v4l2_subdev_parse_rectangle(media, crop, p, &end);
|
if (ret < 0) {
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*endp = end;
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return NULL;
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}
|
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p = end;
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continue;
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}
|
|
if (strhazit("compose:", &p)) {
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ret = v4l2_subdev_parse_rectangle(media, compose, p, &end);
|
if (ret < 0) {
|
*endp = end;
|
return NULL;
|
}
|
|
for (p = end; isspace(*p); p++)
|
;
|
continue;
|
}
|
|
if (*p == '@') {
|
ret = v4l2_subdev_parse_frame_interval(media, interval, ++p, &end);
|
if (ret < 0) {
|
*endp = end;
|
return NULL;
|
}
|
|
p = end;
|
continue;
|
}
|
|
break;
|
}
|
|
if (*p != ']') {
|
media_dbg(media, "Expected ']'\n");
|
*endp = (char*)p;
|
return NULL;
|
}
|
|
*endp = (char*)p + 1;
|
return pad;
|
}
|
|
static int set_format(struct media_pad* pad, struct v4l2_mbus_framefmt* format)
|
{
|
int ret;
|
|
if (format->width == 0 || format->height == 0) {
|
return 0;
|
}
|
|
media_dbg(pad->entity->media, "Setting up format %s %ux%u on pad %s/%u\n",
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v4l2_subdev_pixelcode_to_string(format->code), format->width, format->height, pad->entity->info.name,
|
pad->index);
|
|
ret = v4l2_subdev_set_format(pad->entity, format, pad->index, V4L2_SUBDEV_FORMAT_ACTIVE);
|
if (ret < 0) {
|
media_dbg(pad->entity->media, "Unable to set format: %s (%d)\n", strerror(-ret), ret);
|
return ret;
|
}
|
|
media_dbg(pad->entity->media, "Format set: %s %ux%u\n", v4l2_subdev_pixelcode_to_string(format->code),
|
format->width, format->height);
|
|
return 0;
|
}
|
|
static int set_selection(struct media_pad* pad, unsigned int target, struct v4l2_rect* rect)
|
{
|
int ret;
|
|
if (rect->left == -1 || rect->top == -1) {
|
return 0;
|
}
|
|
media_dbg(pad->entity->media, "Setting up selection target %u rectangle (%u,%u)/%ux%u on pad %s/%u\n", target,
|
rect->left, rect->top, rect->width, rect->height, pad->entity->info.name, pad->index);
|
|
ret = v4l2_subdev_set_selection(pad->entity, rect, pad->index, target, V4L2_SUBDEV_FORMAT_ACTIVE);
|
if (ret < 0) {
|
media_dbg(pad->entity->media, "Unable to set selection rectangle: %s (%d)\n", strerror(-ret), ret);
|
return ret;
|
}
|
|
media_dbg(pad->entity->media, "Selection rectangle set: (%u,%u)/%ux%u\n", rect->left, rect->top, rect->width,
|
rect->height);
|
|
return 0;
|
}
|
|
static int set_frame_interval(struct media_pad* pad, struct v4l2_fract* interval)
|
{
|
int ret;
|
|
if (interval->numerator == 0) {
|
return 0;
|
}
|
|
media_dbg(pad->entity->media, "Setting up frame interval %u/%u on pad %s/%u\n", interval->numerator,
|
interval->denominator, pad->entity->info.name, pad->index);
|
|
ret = v4l2_subdev_set_frame_interval(pad->entity, interval, pad->index);
|
if (ret < 0) {
|
media_dbg(pad->entity->media, "Unable to set frame interval: %s (%d)", strerror(-ret), ret);
|
return ret;
|
}
|
|
media_dbg(pad->entity->media, "Frame interval set: %u/%u\n", interval->numerator, interval->denominator);
|
|
return 0;
|
}
|
|
static int v4l2_subdev_parse_setup_format(struct media_device* media, const char* p, char** endp)
|
{
|
struct v4l2_mbus_framefmt format = {0, 0, 0};
|
struct media_pad* pad;
|
struct v4l2_rect crop = {-1, -1, -1, -1};
|
struct v4l2_rect compose = crop;
|
struct v4l2_fract interval = {0, 0};
|
unsigned int i;
|
char* end;
|
int ret;
|
|
pad = v4l2_subdev_parse_pad_format(media, &format, &crop, &compose, &interval, p, &end);
|
if (pad == NULL) {
|
media_print_streampos(media, p, end);
|
media_dbg(media, "Unable to parse format\n");
|
return -EINVAL;
|
}
|
|
if (pad->flags & MEDIA_PAD_FL_SINK) {
|
ret = set_format(pad, &format);
|
if (ret < 0) {
|
return ret;
|
}
|
}
|
|
ret = set_selection(pad, V4L2_SEL_TGT_CROP, &crop);
|
if (ret < 0) {
|
return ret;
|
}
|
|
ret = set_selection(pad, V4L2_SEL_TGT_COMPOSE, &compose);
|
if (ret < 0) {
|
return ret;
|
}
|
|
if (pad->flags & MEDIA_PAD_FL_SOURCE) {
|
ret = set_format(pad, &format);
|
if (ret < 0) {
|
return ret;
|
}
|
}
|
|
ret = set_frame_interval(pad, &interval);
|
if (ret < 0) {
|
return ret;
|
}
|
|
/* If the pad is an output pad, automatically set the same format and
|
* frame interval on the remote subdev input pads, if any.
|
*/
|
if (pad->flags & MEDIA_PAD_FL_SOURCE) {
|
for (i = 0; i < pad->entity->num_links; ++i) {
|
struct media_link* link = &pad->entity->links[i];
|
struct v4l2_mbus_framefmt remote_format;
|
|
if (!(link->flags & MEDIA_LNK_FL_ENABLED)) {
|
continue;
|
}
|
|
if (link->source == pad && link->sink->entity->info.type == MEDIA_ENT_T_V4L2_SUBDEV) {
|
remote_format = format;
|
set_format(link->sink, &remote_format);
|
|
ret = set_frame_interval(link->sink, &interval);
|
if (ret < 0 && ret != -EINVAL && ret != -ENOTTY) {
|
return ret;
|
}
|
}
|
}
|
}
|
|
*endp = end;
|
return 0;
|
}
|
|
int v4l2_subdev_parse_setup_formats(struct media_device* media, const char* p)
|
{
|
char* end;
|
int ret;
|
|
do {
|
ret = v4l2_subdev_parse_setup_format(media, p, &end);
|
if (ret < 0) {
|
return ret;
|
}
|
|
for (; isspace(*end); end++)
|
;
|
p = end + 1;
|
} while (*end == ',');
|
|
return *end ? -EINVAL : 0;
|
}
|
|
static const struct {
|
const char* name;
|
enum v4l2_mbus_pixelcode code;
|
} mbus_formats[] = {
|
#include "media-bus-format-names.h"
|
{"Y8", MEDIA_BUS_FMT_Y8_1X8},
|
{"Y10", MEDIA_BUS_FMT_Y10_1X10},
|
{"Y12", MEDIA_BUS_FMT_Y12_1X12},
|
{"YUYV", MEDIA_BUS_FMT_YUYV8_1X16},
|
{"YUYV1_5X8", MEDIA_BUS_FMT_YUYV8_1_5X8},
|
{"YUYV2X8", MEDIA_BUS_FMT_YUYV8_2X8},
|
{"UYVY", MEDIA_BUS_FMT_UYVY8_1X16},
|
{"UYVY1_5X8", MEDIA_BUS_FMT_UYVY8_1_5X8},
|
{"UYVY2X8", MEDIA_BUS_FMT_UYVY8_2X8},
|
{"VUY24", MEDIA_BUS_FMT_VUY8_1X24},
|
{"SBGGR8", MEDIA_BUS_FMT_SBGGR8_1X8},
|
{"SGBRG8", MEDIA_BUS_FMT_SGBRG8_1X8},
|
{"SGRBG8", MEDIA_BUS_FMT_SGRBG8_1X8},
|
{"SRGGB8", MEDIA_BUS_FMT_SRGGB8_1X8},
|
{"SBGGR10", MEDIA_BUS_FMT_SBGGR10_1X10},
|
{"SGBRG10", MEDIA_BUS_FMT_SGBRG10_1X10},
|
{"SGRBG10", MEDIA_BUS_FMT_SGRBG10_1X10},
|
{"SRGGB10", MEDIA_BUS_FMT_SRGGB10_1X10},
|
{"SBGGR10_DPCM8", MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8},
|
{"SGBRG10_DPCM8", MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8},
|
{"SGRBG10_DPCM8", MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8},
|
{"SRGGB10_DPCM8", MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8},
|
{"SBGGR12", MEDIA_BUS_FMT_SBGGR12_1X12},
|
{"SGBRG12", MEDIA_BUS_FMT_SGBRG12_1X12},
|
{"SGRBG12", MEDIA_BUS_FMT_SGRBG12_1X12},
|
{"SRGGB12", MEDIA_BUS_FMT_SRGGB12_1X12},
|
{"AYUV32", MEDIA_BUS_FMT_AYUV8_1X32},
|
{"RBG24", MEDIA_BUS_FMT_RBG888_1X24},
|
{"RGB32", MEDIA_BUS_FMT_RGB888_1X32_PADHI},
|
{"ARGB32", MEDIA_BUS_FMT_ARGB8888_1X32},
|
};
|
|
const char* v4l2_subdev_pixelcode_to_string(enum v4l2_mbus_pixelcode code)
|
{
|
unsigned int i;
|
|
for (i = 0; i < ARRAY_SIZE(mbus_formats); ++i) {
|
if (mbus_formats[i].code == code) {
|
return mbus_formats[i].name;
|
}
|
}
|
|
return "unknown";
|
}
|
|
enum v4l2_mbus_pixelcode v4l2_subdev_string_to_pixelcode(const char* string)
|
{
|
unsigned int i;
|
|
for (i = 0; i < ARRAY_SIZE(mbus_formats); ++i) {
|
if (strcmp(mbus_formats[i].name, string) == 0) {
|
return mbus_formats[i].code;
|
}
|
}
|
|
return (enum v4l2_mbus_pixelcode) - 1;
|
}
|
|
static struct {
|
const char* name;
|
enum v4l2_field field;
|
} fields[] = {
|
{"any", V4L2_FIELD_ANY},
|
{"none", V4L2_FIELD_NONE},
|
{"top", V4L2_FIELD_TOP},
|
{"bottom", V4L2_FIELD_BOTTOM},
|
{"interlaced", V4L2_FIELD_INTERLACED},
|
{"seq-tb", V4L2_FIELD_SEQ_TB},
|
{"seq-bt", V4L2_FIELD_SEQ_BT},
|
{"alternate", V4L2_FIELD_ALTERNATE},
|
{"interlaced-tb", V4L2_FIELD_INTERLACED_TB},
|
{"interlaced-bt", V4L2_FIELD_INTERLACED_BT},
|
};
|
|
const char* v4l2_subdev_field_to_string(enum v4l2_field field)
|
{
|
unsigned int i;
|
|
for (i = 0; i < ARRAY_SIZE(fields); ++i) {
|
if (fields[i].field == field) {
|
return fields[i].name;
|
}
|
}
|
|
return "unknown";
|
}
|
|
enum v4l2_field v4l2_subdev_string_to_field(const char* string)
|
{
|
unsigned int i;
|
|
for (i = 0; i < ARRAY_SIZE(fields); ++i) {
|
if (strcasecmp(fields[i].name, string) == 0) {
|
return fields[i].field;
|
}
|
}
|
|
return (enum v4l2_field) - 1;
|
}
|
|
static struct {
|
const char* name;
|
enum v4l2_colorspace colorspace;
|
} colorspaces[] = {
|
{"default", V4L2_COLORSPACE_DEFAULT}, {"smpte170m", V4L2_COLORSPACE_SMPTE170M},
|
{"smpte240m", V4L2_COLORSPACE_SMPTE240M}, {"rec709", V4L2_COLORSPACE_REC709},
|
{"470m", V4L2_COLORSPACE_470_SYSTEM_M}, {"470bg", V4L2_COLORSPACE_470_SYSTEM_BG},
|
{"jpeg", V4L2_COLORSPACE_JPEG}, {"srgb", V4L2_COLORSPACE_SRGB},
|
#ifdef __ANDROID__
|
{"oprgb", V4L2_COLORSPACE_ADOBERGB},
|
#else
|
{"oprgb", V4L2_COLORSPACE_OPRGB},
|
#endif
|
{"bt2020", V4L2_COLORSPACE_BT2020}, {"dcip3", V4L2_COLORSPACE_DCI_P3},
|
};
|
|
const char* v4l2_subdev_colorspace_to_string(enum v4l2_colorspace colorspace)
|
{
|
unsigned int i;
|
|
for (i = 0; i < ARRAY_SIZE(colorspaces); ++i) {
|
if (colorspaces[i].colorspace == colorspace) {
|
return colorspaces[i].name;
|
}
|
}
|
|
return "unknown";
|
}
|
|
enum v4l2_colorspace v4l2_subdev_string_to_colorspace(const char* string)
|
{
|
unsigned int i;
|
|
for (i = 0; i < ARRAY_SIZE(colorspaces); ++i) {
|
if (strcasecmp(colorspaces[i].name, string) == 0) {
|
return colorspaces[i].colorspace;
|
}
|
}
|
|
return (enum v4l2_colorspace) - 1;
|
}
|
|
static struct {
|
const char* name;
|
enum v4l2_xfer_func xfer_func;
|
} xfer_funcs[] = {
|
{"default", V4L2_XFER_FUNC_DEFAULT}, {"709", V4L2_XFER_FUNC_709},
|
{"srgb", V4L2_XFER_FUNC_SRGB},
|
#ifdef __ANDROID__
|
{"oprgb", V4L2_XFER_FUNC_ADOBERGB},
|
#else
|
{"oprgb", V4L2_XFER_FUNC_OPRGB},
|
#endif
|
{"smpte240m", V4L2_XFER_FUNC_SMPTE240M}, {"smpte2084", V4L2_XFER_FUNC_SMPTE2084},
|
{"dcip3", V4L2_XFER_FUNC_DCI_P3}, {"none", V4L2_XFER_FUNC_NONE},
|
};
|
|
const char* v4l2_subdev_xfer_func_to_string(enum v4l2_xfer_func xfer_func)
|
{
|
unsigned int i;
|
|
for (i = 0; i < ARRAY_SIZE(xfer_funcs); ++i) {
|
if (xfer_funcs[i].xfer_func == xfer_func) {
|
return xfer_funcs[i].name;
|
}
|
}
|
|
return "unknown";
|
}
|
|
enum v4l2_xfer_func v4l2_subdev_string_to_xfer_func(const char* string)
|
{
|
unsigned int i;
|
|
for (i = 0; i < ARRAY_SIZE(xfer_funcs); ++i) {
|
if (strcasecmp(xfer_funcs[i].name, string) == 0) {
|
return xfer_funcs[i].xfer_func;
|
}
|
}
|
|
return (enum v4l2_xfer_func) - 1;
|
}
|
|
static struct {
|
const char* name;
|
enum v4l2_ycbcr_encoding ycbcr_enc;
|
} ycbcr_encs[] = {
|
{"default", V4L2_YCBCR_ENC_DEFAULT},
|
{"601", V4L2_YCBCR_ENC_601},
|
{"709", V4L2_YCBCR_ENC_709},
|
{"xv601", V4L2_YCBCR_ENC_XV601},
|
{"xv709", V4L2_YCBCR_ENC_XV709},
|
{"bt2020", V4L2_YCBCR_ENC_BT2020},
|
{"bt2020c", V4L2_YCBCR_ENC_BT2020_CONST_LUM},
|
{"smpte240m", V4L2_YCBCR_ENC_SMPTE240M},
|
};
|
|
const char* v4l2_subdev_ycbcr_encoding_to_string(enum v4l2_ycbcr_encoding ycbcr_enc)
|
{
|
unsigned int i;
|
|
for (i = 0; i < ARRAY_SIZE(ycbcr_encs); ++i) {
|
if (ycbcr_encs[i].ycbcr_enc == ycbcr_enc) {
|
return ycbcr_encs[i].name;
|
}
|
}
|
|
return "unknown";
|
}
|
|
enum v4l2_ycbcr_encoding v4l2_subdev_string_to_ycbcr_encoding(const char* string)
|
{
|
unsigned int i;
|
|
for (i = 0; i < ARRAY_SIZE(ycbcr_encs); ++i) {
|
if (strcasecmp(ycbcr_encs[i].name, string) == 0) {
|
return ycbcr_encs[i].ycbcr_enc;
|
}
|
}
|
|
return (enum v4l2_ycbcr_encoding) - 1;
|
}
|
|
static struct {
|
const char* name;
|
enum v4l2_quantization quantization;
|
} quantizations[] = {
|
{"default", V4L2_QUANTIZATION_DEFAULT},
|
{"full-range", V4L2_QUANTIZATION_FULL_RANGE},
|
{"lim-range", V4L2_QUANTIZATION_LIM_RANGE},
|
};
|
|
const char* v4l2_subdev_quantization_to_string(enum v4l2_quantization quantization)
|
{
|
unsigned int i;
|
|
for (i = 0; i < ARRAY_SIZE(quantizations); ++i) {
|
if (quantizations[i].quantization == quantization) {
|
return quantizations[i].name;
|
}
|
}
|
|
return "unknown";
|
}
|
|
enum v4l2_quantization v4l2_subdev_string_to_quantization(const char* string)
|
{
|
unsigned int i;
|
|
for (i = 0; i < ARRAY_SIZE(quantizations); ++i) {
|
if (strcasecmp(quantizations[i].name, string) == 0) {
|
return quantizations[i].quantization;
|
}
|
}
|
|
return (enum v4l2_quantization) - 1;
|
}
|
|
static const enum v4l2_mbus_pixelcode mbus_codes[] = {
|
#include "media-bus-format-codes.h"
|
};
|
|
const enum v4l2_mbus_pixelcode* v4l2_subdev_pixelcode_list(unsigned int* length)
|
{
|
*length = ARRAY_SIZE(mbus_codes);
|
|
return mbus_codes;
|
}
|
