mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 00:51:28 +07:00
139c92866e
Fix Suspend-to-RAM so that VSP1 driver continues to work after resuming. In detail, - Fix the judgment of ref count in resuming. - Add stopping VSP1 during suspend. [Refactor the suspend and resume code to lower suspend delay] Signed-off-by: Sei Fumizono <sei.fumizono.jw@hitachi-solutions.com> Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com> Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
1286 lines
35 KiB
C
1286 lines
35 KiB
C
/*
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* vsp1_video.c -- R-Car VSP1 Video Node
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*
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* Copyright (C) 2013-2015 Renesas Electronics Corporation
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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 General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/list.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <linux/v4l2-mediabus.h>
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#include <linux/videodev2.h>
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#include <media/media-entity.h>
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#include <media/v4l2-dev.h>
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#include <media/v4l2-fh.h>
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#include <media/v4l2-ioctl.h>
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#include <media/v4l2-subdev.h>
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#include <media/videobuf2-core.h>
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#include <media/videobuf2-dma-contig.h>
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#include "vsp1.h"
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#include "vsp1_bru.h"
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#include "vsp1_entity.h"
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#include "vsp1_rwpf.h"
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#include "vsp1_uds.h"
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#include "vsp1_video.h"
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#define VSP1_VIDEO_DEF_FORMAT V4L2_PIX_FMT_YUYV
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#define VSP1_VIDEO_DEF_WIDTH 1024
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#define VSP1_VIDEO_DEF_HEIGHT 768
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#define VSP1_VIDEO_MIN_WIDTH 2U
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#define VSP1_VIDEO_MAX_WIDTH 8190U
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#define VSP1_VIDEO_MIN_HEIGHT 2U
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#define VSP1_VIDEO_MAX_HEIGHT 8190U
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/* -----------------------------------------------------------------------------
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* Helper functions
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*/
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static const struct vsp1_format_info vsp1_video_formats[] = {
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{ V4L2_PIX_FMT_RGB332, MEDIA_BUS_FMT_ARGB8888_1X32,
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VI6_FMT_RGB_332, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
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1, { 8, 0, 0 }, false, false, 1, 1, false },
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{ V4L2_PIX_FMT_ARGB444, MEDIA_BUS_FMT_ARGB8888_1X32,
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VI6_FMT_ARGB_4444, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS,
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1, { 16, 0, 0 }, false, false, 1, 1, true },
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{ V4L2_PIX_FMT_XRGB444, MEDIA_BUS_FMT_ARGB8888_1X32,
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VI6_FMT_XRGB_4444, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS,
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1, { 16, 0, 0 }, false, false, 1, 1, true },
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{ V4L2_PIX_FMT_ARGB555, MEDIA_BUS_FMT_ARGB8888_1X32,
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VI6_FMT_ARGB_1555, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS,
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1, { 16, 0, 0 }, false, false, 1, 1, true },
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{ V4L2_PIX_FMT_XRGB555, MEDIA_BUS_FMT_ARGB8888_1X32,
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VI6_FMT_XRGB_1555, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS,
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1, { 16, 0, 0 }, false, false, 1, 1, false },
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{ V4L2_PIX_FMT_RGB565, MEDIA_BUS_FMT_ARGB8888_1X32,
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VI6_FMT_RGB_565, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS,
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1, { 16, 0, 0 }, false, false, 1, 1, false },
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{ V4L2_PIX_FMT_BGR24, MEDIA_BUS_FMT_ARGB8888_1X32,
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VI6_FMT_BGR_888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
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1, { 24, 0, 0 }, false, false, 1, 1, false },
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{ V4L2_PIX_FMT_RGB24, MEDIA_BUS_FMT_ARGB8888_1X32,
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VI6_FMT_RGB_888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
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1, { 24, 0, 0 }, false, false, 1, 1, false },
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{ V4L2_PIX_FMT_ABGR32, MEDIA_BUS_FMT_ARGB8888_1X32,
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VI6_FMT_ARGB_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS,
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1, { 32, 0, 0 }, false, false, 1, 1, true },
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{ V4L2_PIX_FMT_XBGR32, MEDIA_BUS_FMT_ARGB8888_1X32,
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VI6_FMT_ARGB_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS,
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1, { 32, 0, 0 }, false, false, 1, 1, false },
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{ V4L2_PIX_FMT_ARGB32, MEDIA_BUS_FMT_ARGB8888_1X32,
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VI6_FMT_ARGB_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
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1, { 32, 0, 0 }, false, false, 1, 1, true },
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{ V4L2_PIX_FMT_XRGB32, MEDIA_BUS_FMT_ARGB8888_1X32,
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VI6_FMT_ARGB_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
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1, { 32, 0, 0 }, false, false, 1, 1, false },
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{ V4L2_PIX_FMT_UYVY, MEDIA_BUS_FMT_AYUV8_1X32,
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VI6_FMT_YUYV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
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1, { 16, 0, 0 }, false, false, 2, 1, false },
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{ V4L2_PIX_FMT_VYUY, MEDIA_BUS_FMT_AYUV8_1X32,
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VI6_FMT_YUYV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
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1, { 16, 0, 0 }, false, true, 2, 1, false },
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{ V4L2_PIX_FMT_YUYV, MEDIA_BUS_FMT_AYUV8_1X32,
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VI6_FMT_YUYV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
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1, { 16, 0, 0 }, true, false, 2, 1, false },
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{ V4L2_PIX_FMT_YVYU, MEDIA_BUS_FMT_AYUV8_1X32,
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VI6_FMT_YUYV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
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1, { 16, 0, 0 }, true, true, 2, 1, false },
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{ V4L2_PIX_FMT_NV12M, MEDIA_BUS_FMT_AYUV8_1X32,
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VI6_FMT_Y_UV_420, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
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2, { 8, 16, 0 }, false, false, 2, 2, false },
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{ V4L2_PIX_FMT_NV21M, MEDIA_BUS_FMT_AYUV8_1X32,
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VI6_FMT_Y_UV_420, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
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2, { 8, 16, 0 }, false, true, 2, 2, false },
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{ V4L2_PIX_FMT_NV16M, MEDIA_BUS_FMT_AYUV8_1X32,
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VI6_FMT_Y_UV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
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2, { 8, 16, 0 }, false, false, 2, 1, false },
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{ V4L2_PIX_FMT_NV61M, MEDIA_BUS_FMT_AYUV8_1X32,
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VI6_FMT_Y_UV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
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2, { 8, 16, 0 }, false, true, 2, 1, false },
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{ V4L2_PIX_FMT_YUV420M, MEDIA_BUS_FMT_AYUV8_1X32,
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VI6_FMT_Y_U_V_420, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
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VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
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3, { 8, 8, 8 }, false, false, 2, 2, false },
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};
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/*
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* vsp1_get_format_info - Retrieve format information for a 4CC
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* @fourcc: the format 4CC
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*
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* Return a pointer to the format information structure corresponding to the
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* given V4L2 format 4CC, or NULL if no corresponding format can be found.
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*/
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static const struct vsp1_format_info *vsp1_get_format_info(u32 fourcc)
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{
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE(vsp1_video_formats); ++i) {
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const struct vsp1_format_info *info = &vsp1_video_formats[i];
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if (info->fourcc == fourcc)
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return info;
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}
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return NULL;
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}
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static struct v4l2_subdev *
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vsp1_video_remote_subdev(struct media_pad *local, u32 *pad)
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{
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struct media_pad *remote;
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remote = media_entity_remote_pad(local);
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if (remote == NULL ||
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media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
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return NULL;
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if (pad)
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*pad = remote->index;
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return media_entity_to_v4l2_subdev(remote->entity);
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}
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static int vsp1_video_verify_format(struct vsp1_video *video)
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{
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struct v4l2_subdev_format fmt;
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struct v4l2_subdev *subdev;
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int ret;
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subdev = vsp1_video_remote_subdev(&video->pad, &fmt.pad);
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if (subdev == NULL)
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return -EINVAL;
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fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
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ret = v4l2_subdev_call(subdev, pad, get_fmt, NULL, &fmt);
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if (ret < 0)
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return ret == -ENOIOCTLCMD ? -EINVAL : ret;
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if (video->fmtinfo->mbus != fmt.format.code ||
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video->format.height != fmt.format.height ||
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video->format.width != fmt.format.width)
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return -EINVAL;
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return 0;
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}
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static int __vsp1_video_try_format(struct vsp1_video *video,
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struct v4l2_pix_format_mplane *pix,
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const struct vsp1_format_info **fmtinfo)
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{
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static const u32 xrgb_formats[][2] = {
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{ V4L2_PIX_FMT_RGB444, V4L2_PIX_FMT_XRGB444 },
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{ V4L2_PIX_FMT_RGB555, V4L2_PIX_FMT_XRGB555 },
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{ V4L2_PIX_FMT_BGR32, V4L2_PIX_FMT_XBGR32 },
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{ V4L2_PIX_FMT_RGB32, V4L2_PIX_FMT_XRGB32 },
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};
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const struct vsp1_format_info *info;
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unsigned int width = pix->width;
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unsigned int height = pix->height;
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unsigned int i;
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/* Backward compatibility: replace deprecated RGB formats by their XRGB
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* equivalent. This selects the format older userspace applications want
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* while still exposing the new format.
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*/
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for (i = 0; i < ARRAY_SIZE(xrgb_formats); ++i) {
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if (xrgb_formats[i][0] == pix->pixelformat) {
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pix->pixelformat = xrgb_formats[i][1];
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break;
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}
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}
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/* Retrieve format information and select the default format if the
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* requested format isn't supported.
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*/
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info = vsp1_get_format_info(pix->pixelformat);
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if (info == NULL)
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info = vsp1_get_format_info(VSP1_VIDEO_DEF_FORMAT);
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pix->pixelformat = info->fourcc;
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pix->colorspace = V4L2_COLORSPACE_SRGB;
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pix->field = V4L2_FIELD_NONE;
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memset(pix->reserved, 0, sizeof(pix->reserved));
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/* Align the width and height for YUV 4:2:2 and 4:2:0 formats. */
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width = round_down(width, info->hsub);
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height = round_down(height, info->vsub);
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/* Clamp the width and height. */
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pix->width = clamp(width, VSP1_VIDEO_MIN_WIDTH, VSP1_VIDEO_MAX_WIDTH);
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pix->height = clamp(height, VSP1_VIDEO_MIN_HEIGHT,
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VSP1_VIDEO_MAX_HEIGHT);
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/* Compute and clamp the stride and image size. While not documented in
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* the datasheet, strides not aligned to a multiple of 128 bytes result
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* in image corruption.
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*/
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for (i = 0; i < max(info->planes, 2U); ++i) {
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unsigned int hsub = i > 0 ? info->hsub : 1;
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unsigned int vsub = i > 0 ? info->vsub : 1;
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unsigned int align = 128;
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unsigned int bpl;
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bpl = clamp_t(unsigned int, pix->plane_fmt[i].bytesperline,
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pix->width / hsub * info->bpp[i] / 8,
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round_down(65535U, align));
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pix->plane_fmt[i].bytesperline = round_up(bpl, align);
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pix->plane_fmt[i].sizeimage = pix->plane_fmt[i].bytesperline
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* pix->height / vsub;
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}
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if (info->planes == 3) {
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/* The second and third planes must have the same stride. */
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pix->plane_fmt[2].bytesperline = pix->plane_fmt[1].bytesperline;
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pix->plane_fmt[2].sizeimage = pix->plane_fmt[1].sizeimage;
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}
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pix->num_planes = info->planes;
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if (fmtinfo)
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*fmtinfo = info;
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return 0;
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}
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static bool
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vsp1_video_format_adjust(struct vsp1_video *video,
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const struct v4l2_pix_format_mplane *format,
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struct v4l2_pix_format_mplane *adjust)
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{
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unsigned int i;
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*adjust = *format;
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__vsp1_video_try_format(video, adjust, NULL);
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if (format->width != adjust->width ||
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format->height != adjust->height ||
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format->pixelformat != adjust->pixelformat ||
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format->num_planes != adjust->num_planes)
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return false;
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for (i = 0; i < format->num_planes; ++i) {
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if (format->plane_fmt[i].bytesperline !=
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adjust->plane_fmt[i].bytesperline)
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return false;
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adjust->plane_fmt[i].sizeimage =
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max(adjust->plane_fmt[i].sizeimage,
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format->plane_fmt[i].sizeimage);
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}
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return true;
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}
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/* -----------------------------------------------------------------------------
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* Pipeline Management
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*/
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static int vsp1_pipeline_validate_branch(struct vsp1_pipeline *pipe,
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struct vsp1_rwpf *input,
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struct vsp1_rwpf *output)
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{
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struct vsp1_entity *entity;
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unsigned int entities = 0;
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struct media_pad *pad;
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bool bru_found = false;
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input->location.left = 0;
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input->location.top = 0;
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pad = media_entity_remote_pad(&input->entity.pads[RWPF_PAD_SOURCE]);
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while (1) {
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if (pad == NULL)
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return -EPIPE;
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/* We've reached a video node, that shouldn't have happened. */
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if (media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
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return -EPIPE;
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entity = to_vsp1_entity(media_entity_to_v4l2_subdev(pad->entity));
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/* A BRU is present in the pipeline, store the compose rectangle
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* location in the input RPF for use when configuring the RPF.
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*/
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if (entity->type == VSP1_ENTITY_BRU) {
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struct vsp1_bru *bru = to_bru(&entity->subdev);
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struct v4l2_rect *rect =
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&bru->inputs[pad->index].compose;
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bru->inputs[pad->index].rpf = input;
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input->location.left = rect->left;
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input->location.top = rect->top;
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bru_found = true;
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}
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/* We've reached the WPF, we're done. */
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if (entity->type == VSP1_ENTITY_WPF)
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break;
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/* Ensure the branch has no loop. */
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if (entities & (1 << entity->subdev.entity.id))
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return -EPIPE;
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entities |= 1 << entity->subdev.entity.id;
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/* UDS can't be chained. */
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if (entity->type == VSP1_ENTITY_UDS) {
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if (pipe->uds)
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return -EPIPE;
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pipe->uds = entity;
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pipe->uds_input = bru_found ? pipe->bru
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: &input->entity;
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}
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/* Follow the source link. The link setup operations ensure
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* that the output fan-out can't be more than one, there is thus
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* no need to verify here that only a single source link is
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* activated.
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*/
|
|
pad = &entity->pads[entity->source_pad];
|
|
pad = media_entity_remote_pad(pad);
|
|
}
|
|
|
|
/* The last entity must be the output WPF. */
|
|
if (entity != &output->entity)
|
|
return -EPIPE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __vsp1_pipeline_cleanup(struct vsp1_pipeline *pipe)
|
|
{
|
|
if (pipe->bru) {
|
|
struct vsp1_bru *bru = to_bru(&pipe->bru->subdev);
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(bru->inputs); ++i)
|
|
bru->inputs[i].rpf = NULL;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&pipe->entities);
|
|
pipe->state = VSP1_PIPELINE_STOPPED;
|
|
pipe->buffers_ready = 0;
|
|
pipe->num_video = 0;
|
|
pipe->num_inputs = 0;
|
|
pipe->output = NULL;
|
|
pipe->bru = NULL;
|
|
pipe->lif = NULL;
|
|
pipe->uds = NULL;
|
|
}
|
|
|
|
static int vsp1_pipeline_validate(struct vsp1_pipeline *pipe,
|
|
struct vsp1_video *video)
|
|
{
|
|
struct media_entity_graph graph;
|
|
struct media_entity *entity = &video->video.entity;
|
|
struct media_device *mdev = entity->parent;
|
|
unsigned int i;
|
|
int ret;
|
|
|
|
mutex_lock(&mdev->graph_mutex);
|
|
|
|
/* Walk the graph to locate the entities and video nodes. */
|
|
media_entity_graph_walk_start(&graph, entity);
|
|
|
|
while ((entity = media_entity_graph_walk_next(&graph))) {
|
|
struct v4l2_subdev *subdev;
|
|
struct vsp1_rwpf *rwpf;
|
|
struct vsp1_entity *e;
|
|
|
|
if (media_entity_type(entity) != MEDIA_ENT_T_V4L2_SUBDEV) {
|
|
pipe->num_video++;
|
|
continue;
|
|
}
|
|
|
|
subdev = media_entity_to_v4l2_subdev(entity);
|
|
e = to_vsp1_entity(subdev);
|
|
list_add_tail(&e->list_pipe, &pipe->entities);
|
|
|
|
if (e->type == VSP1_ENTITY_RPF) {
|
|
rwpf = to_rwpf(subdev);
|
|
pipe->inputs[pipe->num_inputs++] = rwpf;
|
|
rwpf->video.pipe_index = pipe->num_inputs;
|
|
} else if (e->type == VSP1_ENTITY_WPF) {
|
|
rwpf = to_rwpf(subdev);
|
|
pipe->output = to_rwpf(subdev);
|
|
rwpf->video.pipe_index = 0;
|
|
} else if (e->type == VSP1_ENTITY_LIF) {
|
|
pipe->lif = e;
|
|
} else if (e->type == VSP1_ENTITY_BRU) {
|
|
pipe->bru = e;
|
|
}
|
|
}
|
|
|
|
mutex_unlock(&mdev->graph_mutex);
|
|
|
|
/* We need one output and at least one input. */
|
|
if (pipe->num_inputs == 0 || !pipe->output) {
|
|
ret = -EPIPE;
|
|
goto error;
|
|
}
|
|
|
|
/* Follow links downstream for each input and make sure the graph
|
|
* contains no loop and that all branches end at the output WPF.
|
|
*/
|
|
for (i = 0; i < pipe->num_inputs; ++i) {
|
|
ret = vsp1_pipeline_validate_branch(pipe, pipe->inputs[i],
|
|
pipe->output);
|
|
if (ret < 0)
|
|
goto error;
|
|
}
|
|
|
|
return 0;
|
|
|
|
error:
|
|
__vsp1_pipeline_cleanup(pipe);
|
|
return ret;
|
|
}
|
|
|
|
static int vsp1_pipeline_init(struct vsp1_pipeline *pipe,
|
|
struct vsp1_video *video)
|
|
{
|
|
int ret;
|
|
|
|
mutex_lock(&pipe->lock);
|
|
|
|
/* If we're the first user validate and initialize the pipeline. */
|
|
if (pipe->use_count == 0) {
|
|
ret = vsp1_pipeline_validate(pipe, video);
|
|
if (ret < 0)
|
|
goto done;
|
|
}
|
|
|
|
pipe->use_count++;
|
|
ret = 0;
|
|
|
|
done:
|
|
mutex_unlock(&pipe->lock);
|
|
return ret;
|
|
}
|
|
|
|
static void vsp1_pipeline_cleanup(struct vsp1_pipeline *pipe)
|
|
{
|
|
mutex_lock(&pipe->lock);
|
|
|
|
/* If we're the last user clean up the pipeline. */
|
|
if (--pipe->use_count == 0)
|
|
__vsp1_pipeline_cleanup(pipe);
|
|
|
|
mutex_unlock(&pipe->lock);
|
|
}
|
|
|
|
static void vsp1_pipeline_run(struct vsp1_pipeline *pipe)
|
|
{
|
|
struct vsp1_device *vsp1 = pipe->output->entity.vsp1;
|
|
|
|
vsp1_write(vsp1, VI6_CMD(pipe->output->entity.index), VI6_CMD_STRCMD);
|
|
pipe->state = VSP1_PIPELINE_RUNNING;
|
|
pipe->buffers_ready = 0;
|
|
}
|
|
|
|
static int vsp1_pipeline_stop(struct vsp1_pipeline *pipe)
|
|
{
|
|
struct vsp1_entity *entity;
|
|
unsigned long flags;
|
|
int ret;
|
|
|
|
spin_lock_irqsave(&pipe->irqlock, flags);
|
|
if (pipe->state == VSP1_PIPELINE_RUNNING)
|
|
pipe->state = VSP1_PIPELINE_STOPPING;
|
|
spin_unlock_irqrestore(&pipe->irqlock, flags);
|
|
|
|
ret = wait_event_timeout(pipe->wq, pipe->state == VSP1_PIPELINE_STOPPED,
|
|
msecs_to_jiffies(500));
|
|
ret = ret == 0 ? -ETIMEDOUT : 0;
|
|
|
|
list_for_each_entry(entity, &pipe->entities, list_pipe) {
|
|
if (entity->route && entity->route->reg)
|
|
vsp1_write(entity->vsp1, entity->route->reg,
|
|
VI6_DPR_NODE_UNUSED);
|
|
|
|
v4l2_subdev_call(&entity->subdev, video, s_stream, 0);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static bool vsp1_pipeline_ready(struct vsp1_pipeline *pipe)
|
|
{
|
|
unsigned int mask;
|
|
|
|
mask = ((1 << pipe->num_inputs) - 1) << 1;
|
|
if (!pipe->lif)
|
|
mask |= 1 << 0;
|
|
|
|
return pipe->buffers_ready == mask;
|
|
}
|
|
|
|
/*
|
|
* vsp1_video_complete_buffer - Complete the current buffer
|
|
* @video: the video node
|
|
*
|
|
* This function completes the current buffer by filling its sequence number,
|
|
* time stamp and payload size, and hands it back to the videobuf core.
|
|
*
|
|
* When operating in DU output mode (deep pipeline to the DU through the LIF),
|
|
* the VSP1 needs to constantly supply frames to the display. In that case, if
|
|
* no other buffer is queued, reuse the one that has just been processed instead
|
|
* of handing it back to the videobuf core.
|
|
*
|
|
* Return the next queued buffer or NULL if the queue is empty.
|
|
*/
|
|
static struct vsp1_video_buffer *
|
|
vsp1_video_complete_buffer(struct vsp1_video *video)
|
|
{
|
|
struct vsp1_pipeline *pipe = to_vsp1_pipeline(&video->video.entity);
|
|
struct vsp1_video_buffer *next = NULL;
|
|
struct vsp1_video_buffer *done;
|
|
unsigned long flags;
|
|
unsigned int i;
|
|
|
|
spin_lock_irqsave(&video->irqlock, flags);
|
|
|
|
if (list_empty(&video->irqqueue)) {
|
|
spin_unlock_irqrestore(&video->irqlock, flags);
|
|
return NULL;
|
|
}
|
|
|
|
done = list_first_entry(&video->irqqueue,
|
|
struct vsp1_video_buffer, queue);
|
|
|
|
/* In DU output mode reuse the buffer if the list is singular. */
|
|
if (pipe->lif && list_is_singular(&video->irqqueue)) {
|
|
spin_unlock_irqrestore(&video->irqlock, flags);
|
|
return done;
|
|
}
|
|
|
|
list_del(&done->queue);
|
|
|
|
if (!list_empty(&video->irqqueue))
|
|
next = list_first_entry(&video->irqqueue,
|
|
struct vsp1_video_buffer, queue);
|
|
|
|
spin_unlock_irqrestore(&video->irqlock, flags);
|
|
|
|
done->buf.v4l2_buf.sequence = video->sequence++;
|
|
v4l2_get_timestamp(&done->buf.v4l2_buf.timestamp);
|
|
for (i = 0; i < done->buf.num_planes; ++i)
|
|
vb2_set_plane_payload(&done->buf, i, done->length[i]);
|
|
vb2_buffer_done(&done->buf, VB2_BUF_STATE_DONE);
|
|
|
|
return next;
|
|
}
|
|
|
|
static void vsp1_video_frame_end(struct vsp1_pipeline *pipe,
|
|
struct vsp1_video *video)
|
|
{
|
|
struct vsp1_video_buffer *buf;
|
|
unsigned long flags;
|
|
|
|
buf = vsp1_video_complete_buffer(video);
|
|
if (buf == NULL)
|
|
return;
|
|
|
|
spin_lock_irqsave(&pipe->irqlock, flags);
|
|
|
|
video->ops->queue(video, buf);
|
|
pipe->buffers_ready |= 1 << video->pipe_index;
|
|
|
|
spin_unlock_irqrestore(&pipe->irqlock, flags);
|
|
}
|
|
|
|
void vsp1_pipeline_frame_end(struct vsp1_pipeline *pipe)
|
|
{
|
|
enum vsp1_pipeline_state state;
|
|
unsigned long flags;
|
|
unsigned int i;
|
|
|
|
if (pipe == NULL)
|
|
return;
|
|
|
|
/* Complete buffers on all video nodes. */
|
|
for (i = 0; i < pipe->num_inputs; ++i)
|
|
vsp1_video_frame_end(pipe, &pipe->inputs[i]->video);
|
|
|
|
if (!pipe->lif)
|
|
vsp1_video_frame_end(pipe, &pipe->output->video);
|
|
|
|
spin_lock_irqsave(&pipe->irqlock, flags);
|
|
|
|
state = pipe->state;
|
|
pipe->state = VSP1_PIPELINE_STOPPED;
|
|
|
|
/* If a stop has been requested, mark the pipeline as stopped and
|
|
* return.
|
|
*/
|
|
if (state == VSP1_PIPELINE_STOPPING) {
|
|
wake_up(&pipe->wq);
|
|
goto done;
|
|
}
|
|
|
|
/* Restart the pipeline if ready. */
|
|
if (vsp1_pipeline_ready(pipe))
|
|
vsp1_pipeline_run(pipe);
|
|
|
|
done:
|
|
spin_unlock_irqrestore(&pipe->irqlock, flags);
|
|
}
|
|
|
|
/*
|
|
* Propagate the alpha value through the pipeline.
|
|
*
|
|
* As the UDS has restricted scaling capabilities when the alpha component needs
|
|
* to be scaled, we disable alpha scaling when the UDS input has a fixed alpha
|
|
* value. The UDS then outputs a fixed alpha value which needs to be programmed
|
|
* from the input RPF alpha.
|
|
*/
|
|
void vsp1_pipeline_propagate_alpha(struct vsp1_pipeline *pipe,
|
|
struct vsp1_entity *input,
|
|
unsigned int alpha)
|
|
{
|
|
struct vsp1_entity *entity;
|
|
struct media_pad *pad;
|
|
|
|
pad = media_entity_remote_pad(&input->pads[RWPF_PAD_SOURCE]);
|
|
|
|
while (pad) {
|
|
if (media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
|
|
break;
|
|
|
|
entity = to_vsp1_entity(media_entity_to_v4l2_subdev(pad->entity));
|
|
|
|
/* The BRU background color has a fixed alpha value set to 255,
|
|
* the output alpha value is thus always equal to 255.
|
|
*/
|
|
if (entity->type == VSP1_ENTITY_BRU)
|
|
alpha = 255;
|
|
|
|
if (entity->type == VSP1_ENTITY_UDS) {
|
|
struct vsp1_uds *uds = to_uds(&entity->subdev);
|
|
|
|
vsp1_uds_set_alpha(uds, alpha);
|
|
break;
|
|
}
|
|
|
|
pad = &entity->pads[entity->source_pad];
|
|
pad = media_entity_remote_pad(pad);
|
|
}
|
|
}
|
|
|
|
void vsp1_pipelines_suspend(struct vsp1_device *vsp1)
|
|
{
|
|
unsigned long flags;
|
|
unsigned int i;
|
|
int ret;
|
|
|
|
/* To avoid increasing the system suspend time needlessly, loop over the
|
|
* pipelines twice, first to set them all to the stopping state, and then
|
|
* to wait for the stop to complete.
|
|
*/
|
|
for (i = 0; i < vsp1->pdata.wpf_count; ++i) {
|
|
struct vsp1_rwpf *wpf = vsp1->wpf[i];
|
|
struct vsp1_pipeline *pipe;
|
|
|
|
if (wpf == NULL)
|
|
continue;
|
|
|
|
pipe = to_vsp1_pipeline(&wpf->entity.subdev.entity);
|
|
if (pipe == NULL)
|
|
continue;
|
|
|
|
spin_lock_irqsave(&pipe->irqlock, flags);
|
|
if (pipe->state == VSP1_PIPELINE_RUNNING)
|
|
pipe->state = VSP1_PIPELINE_STOPPING;
|
|
spin_unlock_irqrestore(&pipe->irqlock, flags);
|
|
}
|
|
|
|
for (i = 0; i < vsp1->pdata.wpf_count; ++i) {
|
|
struct vsp1_rwpf *wpf = vsp1->wpf[i];
|
|
struct vsp1_pipeline *pipe;
|
|
|
|
if (wpf == NULL)
|
|
continue;
|
|
|
|
pipe = to_vsp1_pipeline(&wpf->entity.subdev.entity);
|
|
if (pipe == NULL)
|
|
continue;
|
|
|
|
ret = wait_event_timeout(pipe->wq,
|
|
pipe->state == VSP1_PIPELINE_STOPPED,
|
|
msecs_to_jiffies(500));
|
|
if (ret == 0)
|
|
dev_warn(vsp1->dev, "pipeline %u stop timeout\n",
|
|
wpf->entity.index);
|
|
}
|
|
}
|
|
|
|
void vsp1_pipelines_resume(struct vsp1_device *vsp1)
|
|
{
|
|
unsigned int i;
|
|
|
|
/* Resume pipeline all running pipelines. */
|
|
for (i = 0; i < vsp1->pdata.wpf_count; ++i) {
|
|
struct vsp1_rwpf *wpf = vsp1->wpf[i];
|
|
struct vsp1_pipeline *pipe;
|
|
|
|
if (wpf == NULL)
|
|
continue;
|
|
|
|
pipe = to_vsp1_pipeline(&wpf->entity.subdev.entity);
|
|
if (pipe == NULL)
|
|
continue;
|
|
|
|
if (vsp1_pipeline_ready(pipe))
|
|
vsp1_pipeline_run(pipe);
|
|
}
|
|
}
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* videobuf2 Queue Operations
|
|
*/
|
|
|
|
static int
|
|
vsp1_video_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
|
|
unsigned int *nbuffers, unsigned int *nplanes,
|
|
unsigned int sizes[], void *alloc_ctxs[])
|
|
{
|
|
struct vsp1_video *video = vb2_get_drv_priv(vq);
|
|
const struct v4l2_pix_format_mplane *format;
|
|
struct v4l2_pix_format_mplane pix_mp;
|
|
unsigned int i;
|
|
|
|
if (fmt) {
|
|
/* Make sure the format is valid and adjust the sizeimage field
|
|
* if needed.
|
|
*/
|
|
if (!vsp1_video_format_adjust(video, &fmt->fmt.pix_mp, &pix_mp))
|
|
return -EINVAL;
|
|
|
|
format = &pix_mp;
|
|
} else {
|
|
format = &video->format;
|
|
}
|
|
|
|
*nplanes = format->num_planes;
|
|
|
|
for (i = 0; i < format->num_planes; ++i) {
|
|
sizes[i] = format->plane_fmt[i].sizeimage;
|
|
alloc_ctxs[i] = video->alloc_ctx;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vsp1_video_buffer_prepare(struct vb2_buffer *vb)
|
|
{
|
|
struct vsp1_video *video = vb2_get_drv_priv(vb->vb2_queue);
|
|
struct vsp1_video_buffer *buf = to_vsp1_video_buffer(vb);
|
|
const struct v4l2_pix_format_mplane *format = &video->format;
|
|
unsigned int i;
|
|
|
|
if (vb->num_planes < format->num_planes)
|
|
return -EINVAL;
|
|
|
|
for (i = 0; i < vb->num_planes; ++i) {
|
|
buf->addr[i] = vb2_dma_contig_plane_dma_addr(vb, i);
|
|
buf->length[i] = vb2_plane_size(vb, i);
|
|
|
|
if (buf->length[i] < format->plane_fmt[i].sizeimage)
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void vsp1_video_buffer_queue(struct vb2_buffer *vb)
|
|
{
|
|
struct vsp1_video *video = vb2_get_drv_priv(vb->vb2_queue);
|
|
struct vsp1_pipeline *pipe = to_vsp1_pipeline(&video->video.entity);
|
|
struct vsp1_video_buffer *buf = to_vsp1_video_buffer(vb);
|
|
unsigned long flags;
|
|
bool empty;
|
|
|
|
spin_lock_irqsave(&video->irqlock, flags);
|
|
empty = list_empty(&video->irqqueue);
|
|
list_add_tail(&buf->queue, &video->irqqueue);
|
|
spin_unlock_irqrestore(&video->irqlock, flags);
|
|
|
|
if (!empty)
|
|
return;
|
|
|
|
spin_lock_irqsave(&pipe->irqlock, flags);
|
|
|
|
video->ops->queue(video, buf);
|
|
pipe->buffers_ready |= 1 << video->pipe_index;
|
|
|
|
if (vb2_is_streaming(&video->queue) &&
|
|
vsp1_pipeline_ready(pipe))
|
|
vsp1_pipeline_run(pipe);
|
|
|
|
spin_unlock_irqrestore(&pipe->irqlock, flags);
|
|
}
|
|
|
|
static void vsp1_entity_route_setup(struct vsp1_entity *source)
|
|
{
|
|
struct vsp1_entity *sink;
|
|
|
|
if (source->route->reg == 0)
|
|
return;
|
|
|
|
sink = container_of(source->sink, struct vsp1_entity, subdev.entity);
|
|
vsp1_write(source->vsp1, source->route->reg,
|
|
sink->route->inputs[source->sink_pad]);
|
|
}
|
|
|
|
static int vsp1_video_start_streaming(struct vb2_queue *vq, unsigned int count)
|
|
{
|
|
struct vsp1_video *video = vb2_get_drv_priv(vq);
|
|
struct vsp1_pipeline *pipe = to_vsp1_pipeline(&video->video.entity);
|
|
struct vsp1_entity *entity;
|
|
unsigned long flags;
|
|
int ret;
|
|
|
|
mutex_lock(&pipe->lock);
|
|
if (pipe->stream_count == pipe->num_video - 1) {
|
|
if (pipe->uds) {
|
|
struct vsp1_uds *uds = to_uds(&pipe->uds->subdev);
|
|
|
|
/* If a BRU is present in the pipeline before the UDS,
|
|
* the alpha component doesn't need to be scaled as the
|
|
* BRU output alpha value is fixed to 255. Otherwise we
|
|
* need to scale the alpha component only when available
|
|
* at the input RPF.
|
|
*/
|
|
if (pipe->uds_input->type == VSP1_ENTITY_BRU) {
|
|
uds->scale_alpha = false;
|
|
} else {
|
|
struct vsp1_rwpf *rpf =
|
|
to_rwpf(&pipe->uds_input->subdev);
|
|
|
|
uds->scale_alpha = rpf->video.fmtinfo->alpha;
|
|
}
|
|
}
|
|
|
|
list_for_each_entry(entity, &pipe->entities, list_pipe) {
|
|
vsp1_entity_route_setup(entity);
|
|
|
|
ret = v4l2_subdev_call(&entity->subdev, video,
|
|
s_stream, 1);
|
|
if (ret < 0) {
|
|
mutex_unlock(&pipe->lock);
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
|
|
pipe->stream_count++;
|
|
mutex_unlock(&pipe->lock);
|
|
|
|
spin_lock_irqsave(&pipe->irqlock, flags);
|
|
if (vsp1_pipeline_ready(pipe))
|
|
vsp1_pipeline_run(pipe);
|
|
spin_unlock_irqrestore(&pipe->irqlock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void vsp1_video_stop_streaming(struct vb2_queue *vq)
|
|
{
|
|
struct vsp1_video *video = vb2_get_drv_priv(vq);
|
|
struct vsp1_pipeline *pipe = to_vsp1_pipeline(&video->video.entity);
|
|
struct vsp1_video_buffer *buffer;
|
|
unsigned long flags;
|
|
int ret;
|
|
|
|
mutex_lock(&pipe->lock);
|
|
if (--pipe->stream_count == 0) {
|
|
/* Stop the pipeline. */
|
|
ret = vsp1_pipeline_stop(pipe);
|
|
if (ret == -ETIMEDOUT)
|
|
dev_err(video->vsp1->dev, "pipeline stop timeout\n");
|
|
}
|
|
mutex_unlock(&pipe->lock);
|
|
|
|
vsp1_pipeline_cleanup(pipe);
|
|
media_entity_pipeline_stop(&video->video.entity);
|
|
|
|
/* Remove all buffers from the IRQ queue. */
|
|
spin_lock_irqsave(&video->irqlock, flags);
|
|
list_for_each_entry(buffer, &video->irqqueue, queue)
|
|
vb2_buffer_done(&buffer->buf, VB2_BUF_STATE_ERROR);
|
|
INIT_LIST_HEAD(&video->irqqueue);
|
|
spin_unlock_irqrestore(&video->irqlock, flags);
|
|
}
|
|
|
|
static struct vb2_ops vsp1_video_queue_qops = {
|
|
.queue_setup = vsp1_video_queue_setup,
|
|
.buf_prepare = vsp1_video_buffer_prepare,
|
|
.buf_queue = vsp1_video_buffer_queue,
|
|
.wait_prepare = vb2_ops_wait_prepare,
|
|
.wait_finish = vb2_ops_wait_finish,
|
|
.start_streaming = vsp1_video_start_streaming,
|
|
.stop_streaming = vsp1_video_stop_streaming,
|
|
};
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* V4L2 ioctls
|
|
*/
|
|
|
|
static int
|
|
vsp1_video_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
|
|
{
|
|
struct v4l2_fh *vfh = file->private_data;
|
|
struct vsp1_video *video = to_vsp1_video(vfh->vdev);
|
|
|
|
cap->capabilities = V4L2_CAP_DEVICE_CAPS | V4L2_CAP_STREAMING
|
|
| V4L2_CAP_VIDEO_CAPTURE_MPLANE
|
|
| V4L2_CAP_VIDEO_OUTPUT_MPLANE;
|
|
|
|
if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
|
|
cap->device_caps = V4L2_CAP_VIDEO_CAPTURE_MPLANE
|
|
| V4L2_CAP_STREAMING;
|
|
else
|
|
cap->device_caps = V4L2_CAP_VIDEO_OUTPUT_MPLANE
|
|
| V4L2_CAP_STREAMING;
|
|
|
|
strlcpy(cap->driver, "vsp1", sizeof(cap->driver));
|
|
strlcpy(cap->card, video->video.name, sizeof(cap->card));
|
|
snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
|
|
dev_name(video->vsp1->dev));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
vsp1_video_get_format(struct file *file, void *fh, struct v4l2_format *format)
|
|
{
|
|
struct v4l2_fh *vfh = file->private_data;
|
|
struct vsp1_video *video = to_vsp1_video(vfh->vdev);
|
|
|
|
if (format->type != video->queue.type)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&video->lock);
|
|
format->fmt.pix_mp = video->format;
|
|
mutex_unlock(&video->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
vsp1_video_try_format(struct file *file, void *fh, struct v4l2_format *format)
|
|
{
|
|
struct v4l2_fh *vfh = file->private_data;
|
|
struct vsp1_video *video = to_vsp1_video(vfh->vdev);
|
|
|
|
if (format->type != video->queue.type)
|
|
return -EINVAL;
|
|
|
|
return __vsp1_video_try_format(video, &format->fmt.pix_mp, NULL);
|
|
}
|
|
|
|
static int
|
|
vsp1_video_set_format(struct file *file, void *fh, struct v4l2_format *format)
|
|
{
|
|
struct v4l2_fh *vfh = file->private_data;
|
|
struct vsp1_video *video = to_vsp1_video(vfh->vdev);
|
|
const struct vsp1_format_info *info;
|
|
int ret;
|
|
|
|
if (format->type != video->queue.type)
|
|
return -EINVAL;
|
|
|
|
ret = __vsp1_video_try_format(video, &format->fmt.pix_mp, &info);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
mutex_lock(&video->lock);
|
|
|
|
if (vb2_is_busy(&video->queue)) {
|
|
ret = -EBUSY;
|
|
goto done;
|
|
}
|
|
|
|
video->format = format->fmt.pix_mp;
|
|
video->fmtinfo = info;
|
|
|
|
done:
|
|
mutex_unlock(&video->lock);
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
vsp1_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type)
|
|
{
|
|
struct v4l2_fh *vfh = file->private_data;
|
|
struct vsp1_video *video = to_vsp1_video(vfh->vdev);
|
|
struct vsp1_pipeline *pipe;
|
|
int ret;
|
|
|
|
if (video->queue.owner && video->queue.owner != file->private_data)
|
|
return -EBUSY;
|
|
|
|
video->sequence = 0;
|
|
|
|
/* Start streaming on the pipeline. No link touching an entity in the
|
|
* pipeline can be activated or deactivated once streaming is started.
|
|
*
|
|
* Use the VSP1 pipeline object embedded in the first video object that
|
|
* starts streaming.
|
|
*/
|
|
pipe = video->video.entity.pipe
|
|
? to_vsp1_pipeline(&video->video.entity) : &video->pipe;
|
|
|
|
ret = media_entity_pipeline_start(&video->video.entity, &pipe->pipe);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* Verify that the configured format matches the output of the connected
|
|
* subdev.
|
|
*/
|
|
ret = vsp1_video_verify_format(video);
|
|
if (ret < 0)
|
|
goto err_stop;
|
|
|
|
ret = vsp1_pipeline_init(pipe, video);
|
|
if (ret < 0)
|
|
goto err_stop;
|
|
|
|
/* Start the queue. */
|
|
ret = vb2_streamon(&video->queue, type);
|
|
if (ret < 0)
|
|
goto err_cleanup;
|
|
|
|
return 0;
|
|
|
|
err_cleanup:
|
|
vsp1_pipeline_cleanup(pipe);
|
|
err_stop:
|
|
media_entity_pipeline_stop(&video->video.entity);
|
|
return ret;
|
|
}
|
|
|
|
static const struct v4l2_ioctl_ops vsp1_video_ioctl_ops = {
|
|
.vidioc_querycap = vsp1_video_querycap,
|
|
.vidioc_g_fmt_vid_cap_mplane = vsp1_video_get_format,
|
|
.vidioc_s_fmt_vid_cap_mplane = vsp1_video_set_format,
|
|
.vidioc_try_fmt_vid_cap_mplane = vsp1_video_try_format,
|
|
.vidioc_g_fmt_vid_out_mplane = vsp1_video_get_format,
|
|
.vidioc_s_fmt_vid_out_mplane = vsp1_video_set_format,
|
|
.vidioc_try_fmt_vid_out_mplane = vsp1_video_try_format,
|
|
.vidioc_reqbufs = vb2_ioctl_reqbufs,
|
|
.vidioc_querybuf = vb2_ioctl_querybuf,
|
|
.vidioc_qbuf = vb2_ioctl_qbuf,
|
|
.vidioc_dqbuf = vb2_ioctl_dqbuf,
|
|
.vidioc_create_bufs = vb2_ioctl_create_bufs,
|
|
.vidioc_prepare_buf = vb2_ioctl_prepare_buf,
|
|
.vidioc_streamon = vsp1_video_streamon,
|
|
.vidioc_streamoff = vb2_ioctl_streamoff,
|
|
};
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* V4L2 File Operations
|
|
*/
|
|
|
|
static int vsp1_video_open(struct file *file)
|
|
{
|
|
struct vsp1_video *video = video_drvdata(file);
|
|
struct v4l2_fh *vfh;
|
|
int ret = 0;
|
|
|
|
vfh = kzalloc(sizeof(*vfh), GFP_KERNEL);
|
|
if (vfh == NULL)
|
|
return -ENOMEM;
|
|
|
|
v4l2_fh_init(vfh, &video->video);
|
|
v4l2_fh_add(vfh);
|
|
|
|
file->private_data = vfh;
|
|
|
|
ret = vsp1_device_get(video->vsp1);
|
|
if (ret < 0) {
|
|
v4l2_fh_del(vfh);
|
|
kfree(vfh);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int vsp1_video_release(struct file *file)
|
|
{
|
|
struct vsp1_video *video = video_drvdata(file);
|
|
struct v4l2_fh *vfh = file->private_data;
|
|
|
|
mutex_lock(&video->lock);
|
|
if (video->queue.owner == vfh) {
|
|
vb2_queue_release(&video->queue);
|
|
video->queue.owner = NULL;
|
|
}
|
|
mutex_unlock(&video->lock);
|
|
|
|
vsp1_device_put(video->vsp1);
|
|
|
|
v4l2_fh_release(file);
|
|
|
|
file->private_data = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct v4l2_file_operations vsp1_video_fops = {
|
|
.owner = THIS_MODULE,
|
|
.unlocked_ioctl = video_ioctl2,
|
|
.open = vsp1_video_open,
|
|
.release = vsp1_video_release,
|
|
.poll = vb2_fop_poll,
|
|
.mmap = vb2_fop_mmap,
|
|
};
|
|
|
|
/* -----------------------------------------------------------------------------
|
|
* Initialization and Cleanup
|
|
*/
|
|
|
|
int vsp1_video_init(struct vsp1_video *video, struct vsp1_entity *rwpf)
|
|
{
|
|
const char *direction;
|
|
int ret;
|
|
|
|
switch (video->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
|
|
direction = "output";
|
|
video->pad.flags = MEDIA_PAD_FL_SINK;
|
|
break;
|
|
|
|
case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
|
|
direction = "input";
|
|
video->pad.flags = MEDIA_PAD_FL_SOURCE;
|
|
video->video.vfl_dir = VFL_DIR_TX;
|
|
break;
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
video->rwpf = rwpf;
|
|
|
|
mutex_init(&video->lock);
|
|
spin_lock_init(&video->irqlock);
|
|
INIT_LIST_HEAD(&video->irqqueue);
|
|
|
|
mutex_init(&video->pipe.lock);
|
|
spin_lock_init(&video->pipe.irqlock);
|
|
INIT_LIST_HEAD(&video->pipe.entities);
|
|
init_waitqueue_head(&video->pipe.wq);
|
|
video->pipe.state = VSP1_PIPELINE_STOPPED;
|
|
|
|
/* Initialize the media entity... */
|
|
ret = media_entity_init(&video->video.entity, 1, &video->pad, 0);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* ... and the format ... */
|
|
video->fmtinfo = vsp1_get_format_info(VSP1_VIDEO_DEF_FORMAT);
|
|
video->format.pixelformat = video->fmtinfo->fourcc;
|
|
video->format.colorspace = V4L2_COLORSPACE_SRGB;
|
|
video->format.field = V4L2_FIELD_NONE;
|
|
video->format.width = VSP1_VIDEO_DEF_WIDTH;
|
|
video->format.height = VSP1_VIDEO_DEF_HEIGHT;
|
|
video->format.num_planes = 1;
|
|
video->format.plane_fmt[0].bytesperline =
|
|
video->format.width * video->fmtinfo->bpp[0] / 8;
|
|
video->format.plane_fmt[0].sizeimage =
|
|
video->format.plane_fmt[0].bytesperline * video->format.height;
|
|
|
|
/* ... and the video node... */
|
|
video->video.v4l2_dev = &video->vsp1->v4l2_dev;
|
|
video->video.fops = &vsp1_video_fops;
|
|
snprintf(video->video.name, sizeof(video->video.name), "%s %s",
|
|
rwpf->subdev.name, direction);
|
|
video->video.vfl_type = VFL_TYPE_GRABBER;
|
|
video->video.release = video_device_release_empty;
|
|
video->video.ioctl_ops = &vsp1_video_ioctl_ops;
|
|
|
|
video_set_drvdata(&video->video, video);
|
|
|
|
/* ... and the buffers queue... */
|
|
video->alloc_ctx = vb2_dma_contig_init_ctx(video->vsp1->dev);
|
|
if (IS_ERR(video->alloc_ctx)) {
|
|
ret = PTR_ERR(video->alloc_ctx);
|
|
goto error;
|
|
}
|
|
|
|
video->queue.type = video->type;
|
|
video->queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
|
|
video->queue.lock = &video->lock;
|
|
video->queue.drv_priv = video;
|
|
video->queue.buf_struct_size = sizeof(struct vsp1_video_buffer);
|
|
video->queue.ops = &vsp1_video_queue_qops;
|
|
video->queue.mem_ops = &vb2_dma_contig_memops;
|
|
video->queue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
|
|
ret = vb2_queue_init(&video->queue);
|
|
if (ret < 0) {
|
|
dev_err(video->vsp1->dev, "failed to initialize vb2 queue\n");
|
|
goto error;
|
|
}
|
|
|
|
/* ... and register the video device. */
|
|
video->video.queue = &video->queue;
|
|
ret = video_register_device(&video->video, VFL_TYPE_GRABBER, -1);
|
|
if (ret < 0) {
|
|
dev_err(video->vsp1->dev, "failed to register video device\n");
|
|
goto error;
|
|
}
|
|
|
|
return 0;
|
|
|
|
error:
|
|
vb2_dma_contig_cleanup_ctx(video->alloc_ctx);
|
|
vsp1_video_cleanup(video);
|
|
return ret;
|
|
}
|
|
|
|
void vsp1_video_cleanup(struct vsp1_video *video)
|
|
{
|
|
if (video_is_registered(&video->video))
|
|
video_unregister_device(&video->video);
|
|
|
|
vb2_dma_contig_cleanup_ctx(video->alloc_ctx);
|
|
media_entity_cleanup(&video->video.entity);
|
|
}
|