2 * vsp1_entity.c -- R-Car VSP1 Base Entity
4 * Copyright (C) 2013-2014 Renesas Electronics Corporation
6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
14 #include <linux/device.h>
15 #include <linux/gfp.h>
17 #include <media/media-entity.h>
18 #include <media/v4l2-ctrls.h>
19 #include <media/v4l2-subdev.h>
22 #include "vsp1_entity.h"
23 #include "vsp1_video.h"
25 bool vsp1_entity_is_streaming(struct vsp1_entity
*entity
)
30 spin_lock_irqsave(&entity
->lock
, flags
);
31 streaming
= entity
->streaming
;
32 spin_unlock_irqrestore(&entity
->lock
, flags
);
37 int vsp1_entity_set_streaming(struct vsp1_entity
*entity
, bool streaming
)
42 spin_lock_irqsave(&entity
->lock
, flags
);
43 entity
->streaming
= streaming
;
44 spin_unlock_irqrestore(&entity
->lock
, flags
);
49 if (!entity
->subdev
.ctrl_handler
)
52 ret
= v4l2_ctrl_handler_setup(entity
->subdev
.ctrl_handler
);
54 spin_lock_irqsave(&entity
->lock
, flags
);
55 entity
->streaming
= false;
56 spin_unlock_irqrestore(&entity
->lock
, flags
);
62 /* -----------------------------------------------------------------------------
63 * V4L2 Subdevice Operations
66 struct v4l2_mbus_framefmt
*
67 vsp1_entity_get_pad_format(struct vsp1_entity
*entity
,
68 struct v4l2_subdev_pad_config
*cfg
,
69 unsigned int pad
, u32 which
)
72 case V4L2_SUBDEV_FORMAT_TRY
:
73 return v4l2_subdev_get_try_format(&entity
->subdev
, cfg
, pad
);
74 case V4L2_SUBDEV_FORMAT_ACTIVE
:
75 return &entity
->formats
[pad
];
82 * vsp1_entity_init_formats - Initialize formats on all pads
83 * @subdev: V4L2 subdevice
84 * @cfg: V4L2 subdev pad configuration
86 * Initialize all pad formats with default values. If cfg is not NULL, try
87 * formats are initialized on the file handle. Otherwise active formats are
88 * initialized on the device.
90 void vsp1_entity_init_formats(struct v4l2_subdev
*subdev
,
91 struct v4l2_subdev_pad_config
*cfg
)
93 struct v4l2_subdev_format format
;
96 for (pad
= 0; pad
< subdev
->entity
.num_pads
- 1; ++pad
) {
97 memset(&format
, 0, sizeof(format
));
100 format
.which
= cfg
? V4L2_SUBDEV_FORMAT_TRY
101 : V4L2_SUBDEV_FORMAT_ACTIVE
;
103 v4l2_subdev_call(subdev
, pad
, set_fmt
, cfg
, &format
);
107 static int vsp1_entity_open(struct v4l2_subdev
*subdev
,
108 struct v4l2_subdev_fh
*fh
)
110 vsp1_entity_init_formats(subdev
, fh
->pad
);
115 const struct v4l2_subdev_internal_ops vsp1_subdev_internal_ops
= {
116 .open
= vsp1_entity_open
,
119 /* -----------------------------------------------------------------------------
123 static int vsp1_entity_link_setup(struct media_entity
*entity
,
124 const struct media_pad
*local
,
125 const struct media_pad
*remote
, u32 flags
)
127 struct vsp1_entity
*source
;
129 if (!(local
->flags
& MEDIA_PAD_FL_SOURCE
))
132 source
= container_of(local
->entity
, struct vsp1_entity
, subdev
.entity
);
137 if (flags
& MEDIA_LNK_FL_ENABLED
) {
140 source
->sink
= remote
->entity
;
141 source
->sink_pad
= remote
->index
;
144 source
->sink_pad
= 0;
150 const struct media_entity_operations vsp1_media_ops
= {
151 .link_setup
= vsp1_entity_link_setup
,
152 .link_validate
= v4l2_subdev_link_validate
,
155 /* -----------------------------------------------------------------------------
159 static const struct vsp1_route vsp1_routes
[] = {
160 { VSP1_ENTITY_BRU
, 0, VI6_DPR_BRU_ROUTE
,
161 { VI6_DPR_NODE_BRU_IN(0), VI6_DPR_NODE_BRU_IN(1),
162 VI6_DPR_NODE_BRU_IN(2), VI6_DPR_NODE_BRU_IN(3), } },
163 { VSP1_ENTITY_HSI
, 0, VI6_DPR_HSI_ROUTE
, { VI6_DPR_NODE_HSI
, } },
164 { VSP1_ENTITY_HST
, 0, VI6_DPR_HST_ROUTE
, { VI6_DPR_NODE_HST
, } },
165 { VSP1_ENTITY_LIF
, 0, 0, { VI6_DPR_NODE_LIF
, } },
166 { VSP1_ENTITY_LUT
, 0, VI6_DPR_LUT_ROUTE
, { VI6_DPR_NODE_LUT
, } },
167 { VSP1_ENTITY_RPF
, 0, VI6_DPR_RPF_ROUTE(0), { VI6_DPR_NODE_RPF(0), } },
168 { VSP1_ENTITY_RPF
, 1, VI6_DPR_RPF_ROUTE(1), { VI6_DPR_NODE_RPF(1), } },
169 { VSP1_ENTITY_RPF
, 2, VI6_DPR_RPF_ROUTE(2), { VI6_DPR_NODE_RPF(2), } },
170 { VSP1_ENTITY_RPF
, 3, VI6_DPR_RPF_ROUTE(3), { VI6_DPR_NODE_RPF(3), } },
171 { VSP1_ENTITY_RPF
, 4, VI6_DPR_RPF_ROUTE(4), { VI6_DPR_NODE_RPF(4), } },
172 { VSP1_ENTITY_SRU
, 0, VI6_DPR_SRU_ROUTE
, { VI6_DPR_NODE_SRU
, } },
173 { VSP1_ENTITY_UDS
, 0, VI6_DPR_UDS_ROUTE(0), { VI6_DPR_NODE_UDS(0), } },
174 { VSP1_ENTITY_UDS
, 1, VI6_DPR_UDS_ROUTE(1), { VI6_DPR_NODE_UDS(1), } },
175 { VSP1_ENTITY_UDS
, 2, VI6_DPR_UDS_ROUTE(2), { VI6_DPR_NODE_UDS(2), } },
176 { VSP1_ENTITY_WPF
, 0, 0, { VI6_DPR_NODE_WPF(0), } },
177 { VSP1_ENTITY_WPF
, 1, 0, { VI6_DPR_NODE_WPF(1), } },
178 { VSP1_ENTITY_WPF
, 2, 0, { VI6_DPR_NODE_WPF(2), } },
179 { VSP1_ENTITY_WPF
, 3, 0, { VI6_DPR_NODE_WPF(3), } },
182 int vsp1_entity_init(struct vsp1_device
*vsp1
, struct vsp1_entity
*entity
,
183 unsigned int num_pads
)
187 for (i
= 0; i
< ARRAY_SIZE(vsp1_routes
); ++i
) {
188 if (vsp1_routes
[i
].type
== entity
->type
&&
189 vsp1_routes
[i
].index
== entity
->index
) {
190 entity
->route
= &vsp1_routes
[i
];
195 if (i
== ARRAY_SIZE(vsp1_routes
))
198 spin_lock_init(&entity
->lock
);
201 entity
->source_pad
= num_pads
- 1;
203 /* Allocate formats and pads. */
204 entity
->formats
= devm_kzalloc(vsp1
->dev
,
205 num_pads
* sizeof(*entity
->formats
),
207 if (entity
->formats
== NULL
)
210 entity
->pads
= devm_kzalloc(vsp1
->dev
, num_pads
* sizeof(*entity
->pads
),
212 if (entity
->pads
== NULL
)
215 /* Initialize pads. */
216 for (i
= 0; i
< num_pads
- 1; ++i
)
217 entity
->pads
[i
].flags
= MEDIA_PAD_FL_SINK
;
219 entity
->pads
[num_pads
- 1].flags
= MEDIA_PAD_FL_SOURCE
;
221 /* Initialize the media entity. */
222 return media_entity_init(&entity
->subdev
.entity
, num_pads
,
226 void vsp1_entity_destroy(struct vsp1_entity
*entity
)
229 vsp1_video_cleanup(entity
->video
);
230 if (entity
->subdev
.ctrl_handler
)
231 v4l2_ctrl_handler_free(entity
->subdev
.ctrl_handler
);
232 media_entity_cleanup(&entity
->subdev
.entity
);