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"
24 bool vsp1_entity_is_streaming(struct vsp1_entity
*entity
)
29 spin_lock_irqsave(&entity
->lock
, flags
);
30 streaming
= entity
->streaming
;
31 spin_unlock_irqrestore(&entity
->lock
, flags
);
36 int vsp1_entity_set_streaming(struct vsp1_entity
*entity
, bool streaming
)
41 spin_lock_irqsave(&entity
->lock
, flags
);
42 entity
->streaming
= streaming
;
43 spin_unlock_irqrestore(&entity
->lock
, flags
);
48 if (!entity
->subdev
.ctrl_handler
)
51 ret
= v4l2_ctrl_handler_setup(entity
->subdev
.ctrl_handler
);
53 spin_lock_irqsave(&entity
->lock
, flags
);
54 entity
->streaming
= false;
55 spin_unlock_irqrestore(&entity
->lock
, flags
);
61 /* -----------------------------------------------------------------------------
62 * V4L2 Subdevice Operations
65 struct v4l2_mbus_framefmt
*
66 vsp1_entity_get_pad_format(struct vsp1_entity
*entity
,
67 struct v4l2_subdev_pad_config
*cfg
,
68 unsigned int pad
, u32 which
)
71 case V4L2_SUBDEV_FORMAT_TRY
:
72 return v4l2_subdev_get_try_format(&entity
->subdev
, cfg
, pad
);
73 case V4L2_SUBDEV_FORMAT_ACTIVE
:
74 return &entity
->formats
[pad
];
81 * vsp1_entity_init_formats - Initialize formats on all pads
82 * @subdev: V4L2 subdevice
83 * @cfg: V4L2 subdev pad configuration
85 * Initialize all pad formats with default values. If cfg is not NULL, try
86 * formats are initialized on the file handle. Otherwise active formats are
87 * initialized on the device.
89 void vsp1_entity_init_formats(struct v4l2_subdev
*subdev
,
90 struct v4l2_subdev_pad_config
*cfg
)
92 struct v4l2_subdev_format format
;
95 for (pad
= 0; pad
< subdev
->entity
.num_pads
- 1; ++pad
) {
96 memset(&format
, 0, sizeof(format
));
99 format
.which
= cfg
? V4L2_SUBDEV_FORMAT_TRY
100 : V4L2_SUBDEV_FORMAT_ACTIVE
;
102 v4l2_subdev_call(subdev
, pad
, set_fmt
, cfg
, &format
);
106 static int vsp1_entity_open(struct v4l2_subdev
*subdev
,
107 struct v4l2_subdev_fh
*fh
)
109 vsp1_entity_init_formats(subdev
, fh
->pad
);
114 const struct v4l2_subdev_internal_ops vsp1_subdev_internal_ops
= {
115 .open
= vsp1_entity_open
,
118 /* -----------------------------------------------------------------------------
122 static int vsp1_entity_link_setup(struct media_entity
*entity
,
123 const struct media_pad
*local
,
124 const struct media_pad
*remote
, u32 flags
)
126 struct vsp1_entity
*source
;
128 if (!(local
->flags
& MEDIA_PAD_FL_SOURCE
))
131 source
= container_of(local
->entity
, struct vsp1_entity
, subdev
.entity
);
136 if (flags
& MEDIA_LNK_FL_ENABLED
) {
139 source
->sink
= remote
->entity
;
140 source
->sink_pad
= remote
->index
;
143 source
->sink_pad
= 0;
149 const struct media_entity_operations vsp1_media_ops
= {
150 .link_setup
= vsp1_entity_link_setup
,
151 .link_validate
= v4l2_subdev_link_validate
,
154 /* -----------------------------------------------------------------------------
158 static const struct vsp1_route vsp1_routes
[] = {
159 { VSP1_ENTITY_BRU
, 0, VI6_DPR_BRU_ROUTE
,
160 { VI6_DPR_NODE_BRU_IN(0), VI6_DPR_NODE_BRU_IN(1),
161 VI6_DPR_NODE_BRU_IN(2), VI6_DPR_NODE_BRU_IN(3), } },
162 { VSP1_ENTITY_HSI
, 0, VI6_DPR_HSI_ROUTE
, { VI6_DPR_NODE_HSI
, } },
163 { VSP1_ENTITY_HST
, 0, VI6_DPR_HST_ROUTE
, { VI6_DPR_NODE_HST
, } },
164 { VSP1_ENTITY_LIF
, 0, 0, { VI6_DPR_NODE_LIF
, } },
165 { VSP1_ENTITY_LUT
, 0, VI6_DPR_LUT_ROUTE
, { VI6_DPR_NODE_LUT
, } },
166 { VSP1_ENTITY_RPF
, 0, VI6_DPR_RPF_ROUTE(0), { VI6_DPR_NODE_RPF(0), } },
167 { VSP1_ENTITY_RPF
, 1, VI6_DPR_RPF_ROUTE(1), { VI6_DPR_NODE_RPF(1), } },
168 { VSP1_ENTITY_RPF
, 2, VI6_DPR_RPF_ROUTE(2), { VI6_DPR_NODE_RPF(2), } },
169 { VSP1_ENTITY_RPF
, 3, VI6_DPR_RPF_ROUTE(3), { VI6_DPR_NODE_RPF(3), } },
170 { VSP1_ENTITY_RPF
, 4, VI6_DPR_RPF_ROUTE(4), { VI6_DPR_NODE_RPF(4), } },
171 { VSP1_ENTITY_SRU
, 0, VI6_DPR_SRU_ROUTE
, { VI6_DPR_NODE_SRU
, } },
172 { VSP1_ENTITY_UDS
, 0, VI6_DPR_UDS_ROUTE(0), { VI6_DPR_NODE_UDS(0), } },
173 { VSP1_ENTITY_UDS
, 1, VI6_DPR_UDS_ROUTE(1), { VI6_DPR_NODE_UDS(1), } },
174 { VSP1_ENTITY_UDS
, 2, VI6_DPR_UDS_ROUTE(2), { VI6_DPR_NODE_UDS(2), } },
175 { VSP1_ENTITY_WPF
, 0, 0, { VI6_DPR_NODE_WPF(0), } },
176 { VSP1_ENTITY_WPF
, 1, 0, { VI6_DPR_NODE_WPF(1), } },
177 { VSP1_ENTITY_WPF
, 2, 0, { VI6_DPR_NODE_WPF(2), } },
178 { VSP1_ENTITY_WPF
, 3, 0, { VI6_DPR_NODE_WPF(3), } },
181 int vsp1_entity_init(struct vsp1_device
*vsp1
, struct vsp1_entity
*entity
,
182 unsigned int num_pads
)
186 for (i
= 0; i
< ARRAY_SIZE(vsp1_routes
); ++i
) {
187 if (vsp1_routes
[i
].type
== entity
->type
&&
188 vsp1_routes
[i
].index
== entity
->index
) {
189 entity
->route
= &vsp1_routes
[i
];
194 if (i
== ARRAY_SIZE(vsp1_routes
))
197 spin_lock_init(&entity
->lock
);
200 entity
->source_pad
= num_pads
- 1;
202 /* Allocate formats and pads. */
203 entity
->formats
= devm_kzalloc(vsp1
->dev
,
204 num_pads
* sizeof(*entity
->formats
),
206 if (entity
->formats
== NULL
)
209 entity
->pads
= devm_kzalloc(vsp1
->dev
, num_pads
* sizeof(*entity
->pads
),
211 if (entity
->pads
== NULL
)
214 /* Initialize pads. */
215 for (i
= 0; i
< num_pads
- 1; ++i
)
216 entity
->pads
[i
].flags
= MEDIA_PAD_FL_SINK
;
218 entity
->pads
[num_pads
- 1].flags
= MEDIA_PAD_FL_SOURCE
;
220 /* Initialize the media entity. */
221 return media_entity_pads_init(&entity
->subdev
.entity
, num_pads
,
225 void vsp1_entity_destroy(struct vsp1_entity
*entity
)
227 if (entity
->subdev
.ctrl_handler
)
228 v4l2_ctrl_handler_free(entity
->subdev
.ctrl_handler
);
229 media_entity_cleanup(&entity
->subdev
.entity
);