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Diffstat (limited to 'subdev.h')
| -rw-r--r-- | subdev.h | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/subdev.h b/subdev.h deleted file mode 100644 index b5772e0..0000000 --- a/subdev.h +++ /dev/null @@ -1,162 +0,0 @@ -/* - * Media controller test application - * - * Copyright (C) 2010 Ideas on board SPRL <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 as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - */ - -#ifndef __SUBDEV_H__ -#define __SUBDEV_H__ - -#include <linux/v4l2-subdev.h> - -struct media_entity; - -/** - * @brief Open a sub-device. - * @param entity - sub-device media entity. - * - * Open the V4L2 subdev device node associated with @a entity. The file - * descriptor is stored in the media_entity structure. - * - * @return 0 on success, or a negative error code on failure. - */ -int v4l2_subdev_open(struct media_entity *entity); - -/** - * @brief Close a sub-device. - * @param entity - sub-device media entity. - * - * Close the V4L2 subdev device node associated with the @a entity and opened by - * a previous call to v4l2_subdev_open() (either explicit or implicit). - */ -void v4l2_subdev_close(struct media_entity *entity); - -/** - * @brief Retrieve the format on a pad. - * @param entity - subdev-device media entity. - * @param format - format to be filled. - * @param pad - pad number. - * @param which - identifier of the format to get. - * - * Retrieve the current format on the @a entity @a pad and store it in the - * @a format structure. - * - * @a which is set to V4L2_SUBDEV_FORMAT_TRY to retrieve the try format stored - * in the file handle, of V4L2_SUBDEV_FORMAT_ACTIVE to retrieve the current - * active format. - * - * @return 0 on success, or a negative error code on failure. - */ -int v4l2_subdev_get_format(struct media_entity *entity, - struct v4l2_mbus_framefmt *format, unsigned int pad, - enum v4l2_subdev_format_whence which); - -/** - * @brief Set the format on a pad. - * @param entity - subdev-device media entity. - * @param format - format. - * @param pad - pad number. - * @param which - identifier of the format to set. - * - * Set the format on the @a entity @a pad to @a format. The driver is allowed to - * modify the requested format, in which case @a format is updated with the - * modifications. - * - * @a which is set to V4L2_SUBDEV_FORMAT_TRY to set the try format stored in the - * file handle, of V4L2_SUBDEV_FORMAT_ACTIVE to configure the device with an - * active format. - * - * @return 0 on success, or a negative error code on failure. - */ -int v4l2_subdev_set_format(struct media_entity *entity, - struct v4l2_mbus_framefmt *format, unsigned int pad, - enum v4l2_subdev_format_whence which); - -/** - * @brief Retrieve the crop rectangle on a pad. - * @param entity - subdev-device media entity. - * @param rect - crop rectangle to be filled. - * @param pad - pad number. - * @param which - identifier of the format to get. - * - * Retrieve the current crop rectangleon the @a entity @a pad and store it in - * the @a rect structure. - * - * @a which is set to V4L2_SUBDEV_FORMAT_TRY to retrieve the try crop rectangle - * stored in the file handle, of V4L2_SUBDEV_FORMAT_ACTIVE to retrieve the - * current active crop rectangle. - * - * @return 0 on success, or a negative error code on failure. - */ -int v4l2_subdev_get_crop(struct media_entity *entity, struct v4l2_rect *rect, - unsigned int pad, enum v4l2_subdev_format_whence which); - -/** - * @brief Set the crop rectangle on a pad. - * @param entity - subdev-device media entity. - * @param rect - crop rectangle. - * @param pad - pad number. - * @param which - identifier of the format to set. - * - * Set the crop rectangle on the @a entity @a pad to @a rect. The driver is - * allowed to modify the requested rectangle, in which case @a rect is updated - * with the modifications. - * - * @a which is set to V4L2_SUBDEV_FORMAT_TRY to set the try crop rectangle - * stored in the file handle, of V4L2_SUBDEV_FORMAT_ACTIVE to configure the - * device with an active crop rectangle. - * - * @return 0 on success, or a negative error code on failure. - */ -int v4l2_subdev_set_crop(struct media_entity *entity, struct v4l2_rect *rect, - unsigned int pad, enum v4l2_subdev_format_whence which); - -/** - * @brief Retrieve the frame interval on a sub-device. - * @param entity - subdev-device media entity. - * @param interval - frame interval to be filled. - * - * Retrieve the current frame interval on subdev @a entity and store it in the - * @a interval structure. - * - * Frame interval retrieving is usually supported only on devices at the - * beginning of video pipelines, such as sensors. - * - * @return 0 on success, or a negative error code on failure. - */ - -int v4l2_subdev_get_frame_interval(struct media_entity *entity, - struct v4l2_fract *interval); - -/** - * @brief Set the frame interval on a sub-device. - * @param entity - subdev-device media entity. - * @param interval - frame interval. - * - * Set the frame interval on subdev @a entity to @a interval. The driver is - * allowed to modify the requested frame interval, in which case @a interval is - * updated with the modifications. - * - * Frame interval setting is usually supported only on devices at the beginning - * of video pipelines, such as sensors. - * - * @return 0 on success, or a negative error code on failure. - */ -int v4l2_subdev_set_frame_interval(struct media_entity *entity, - struct v4l2_fract *interval); - -#endif - |