acc83ca211
- Request api allows to synchronize controls along with buffers. - Client allocates a request fd. This request fd is associated with control and set using s_ext_ctrls. Such controls are stored by the framework and not applied immediately. - Request fd is also associated with input qbuf and queued to driver. Following this actual request is queued. Buffers do not enter the queue untill the request is queued. - As part of qbuf, driver call request_setup() which inturn sets the control to driver. Change-Id: I316c4dc2a0091b21059230be5ee5fd6379259456 Signed-off-by: Darshana Patil <quic_darshana@quicinc.com>
72 行
2.6 KiB
C
72 行
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2020-2021,, The Linux Foundation. All rights reserved.
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*/
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#ifndef _MSM_VIDC_V4L2_H_
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#define _MSM_VIDC_V4L2_H_
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#include <linux/poll.h>
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#include <linux/fs.h>
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#include <media/v4l2-dev.h>
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#include <media/v4l2-ioctl.h>
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#include <media/v4l2-ctrls.h>
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int msm_v4l2_open(struct file *filp);
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int msm_v4l2_close(struct file *filp);
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int msm_v4l2_querycap(struct file *filp, void *fh,
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struct v4l2_capability *cap);
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int msm_v4l2_enum_fmt(struct file *file, void *fh,
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struct v4l2_fmtdesc *f);
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int msm_v4l2_try_fmt(struct file *file, void *fh,
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struct v4l2_format *f);
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int msm_v4l2_s_fmt(struct file *file, void *fh,
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struct v4l2_format *f);
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int msm_v4l2_g_fmt(struct file *file, void *fh,
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struct v4l2_format *f);
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int msm_v4l2_s_selection(struct file* file, void* fh,
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struct v4l2_selection* s);
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int msm_v4l2_g_selection(struct file* file, void* fh,
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struct v4l2_selection* s);
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int msm_v4l2_s_parm(struct file *file, void *fh,
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struct v4l2_streamparm *a);
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int msm_v4l2_g_parm(struct file *file, void *fh,
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struct v4l2_streamparm *a);
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int msm_v4l2_reqbufs(struct file *file, void *fh,
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struct v4l2_requestbuffers *b);
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int msm_v4l2_qbuf(struct file *file, void *fh,
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struct v4l2_buffer *b);
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int msm_v4l2_dqbuf(struct file *file, void *fh,
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struct v4l2_buffer *b);
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int msm_v4l2_streamon(struct file *file, void *fh,
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enum v4l2_buf_type i);
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int msm_v4l2_streamoff(struct file *file, void *fh,
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enum v4l2_buf_type i);
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int msm_v4l2_subscribe_event(struct v4l2_fh *fh,
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const struct v4l2_event_subscription *sub);
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int msm_v4l2_unsubscribe_event(struct v4l2_fh *fh,
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const struct v4l2_event_subscription *sub);
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int msm_v4l2_try_decoder_cmd(struct file *file, void *fh,
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struct v4l2_decoder_cmd *enc);
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int msm_v4l2_decoder_cmd(struct file *file, void *fh,
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struct v4l2_decoder_cmd *dec);
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int msm_v4l2_try_encoder_cmd(struct file *file, void *fh,
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struct v4l2_encoder_cmd *enc);
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int msm_v4l2_encoder_cmd(struct file *file, void *fh,
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struct v4l2_encoder_cmd *enc);
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int msm_v4l2_enum_framesizes(struct file *file, void *fh,
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struct v4l2_frmsizeenum *fsize);
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int msm_v4l2_enum_frameintervals(struct file *file, void *fh,
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struct v4l2_frmivalenum *fival);
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int msm_v4l2_queryctrl(struct file *file, void *fh,
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struct v4l2_queryctrl *ctrl);
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int msm_v4l2_querymenu(struct file *file, void *fh,
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struct v4l2_querymenu *qmenu);
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unsigned int msm_v4l2_poll(struct file *filp,
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struct poll_table_struct *pt);
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int msm_v4l2_request_validate(struct media_request *req);
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void msm_v4l2_request_queue(struct media_request *req);
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void msm_v4l2_m2m_device_run(void *priv);
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void msm_v4l2_m2m_job_abort(void *priv);
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#endif // _MSM_VIDC_V4L2_H_
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