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 /* -----------------------------------------------------------------------------
25 * V4L2 Subdevice Operations
28 struct v4l2_mbus_framefmt *
29 vsp1_entity_get_pad_format(struct vsp1_entity *entity,
30 struct v4l2_subdev_fh *fh,
31 unsigned int pad, u32 which)
34 case V4L2_SUBDEV_FORMAT_TRY:
35 return v4l2_subdev_get_try_format(fh, pad);
36 case V4L2_SUBDEV_FORMAT_ACTIVE:
37 return &entity->formats[pad];
44 * vsp1_entity_init_formats - Initialize formats on all pads
45 * @subdev: V4L2 subdevice
46 * @fh: V4L2 subdev file handle
48 * Initialize all pad formats with default values. If fh is not NULL, try
49 * formats are initialized on the file handle. Otherwise active formats are
50 * initialized on the device.
52 void vsp1_entity_init_formats(struct v4l2_subdev *subdev,
53 struct v4l2_subdev_fh *fh)
55 struct v4l2_subdev_format format;
58 for (pad = 0; pad < subdev->entity.num_pads - 1; ++pad) {
59 memset(&format, 0, sizeof(format));
62 format.which = fh ? V4L2_SUBDEV_FORMAT_TRY
63 : V4L2_SUBDEV_FORMAT_ACTIVE;
65 v4l2_subdev_call(subdev, pad, set_fmt, fh, &format);
69 static int vsp1_entity_open(struct v4l2_subdev *subdev,
70 struct v4l2_subdev_fh *fh)
72 vsp1_entity_init_formats(subdev, fh);
77 const struct v4l2_subdev_internal_ops vsp1_subdev_internal_ops = {
78 .open = vsp1_entity_open,
81 /* -----------------------------------------------------------------------------
85 static int vsp1_entity_link_setup(struct media_entity *entity,
86 const struct media_pad *local,
87 const struct media_pad *remote, u32 flags)
89 struct vsp1_entity *source;
91 if (!(local->flags & MEDIA_PAD_FL_SOURCE))
94 source = container_of(local->entity, struct vsp1_entity, subdev.entity);
99 if (flags & MEDIA_LNK_FL_ENABLED) {
102 source->sink = remote->entity;
103 source->sink_pad = remote->index;
106 source->sink_pad = 0;
112 const struct media_entity_operations vsp1_media_ops = {
113 .link_setup = vsp1_entity_link_setup,
114 .link_validate = v4l2_subdev_link_validate,
117 /* -----------------------------------------------------------------------------
121 static const struct vsp1_route vsp1_routes[] = {
122 { VSP1_ENTITY_BRU, 0, VI6_DPR_BRU_ROUTE,
123 { VI6_DPR_NODE_BRU_IN(0), VI6_DPR_NODE_BRU_IN(1),
124 VI6_DPR_NODE_BRU_IN(2), VI6_DPR_NODE_BRU_IN(3), } },
125 { VSP1_ENTITY_HSI, 0, VI6_DPR_HSI_ROUTE, { VI6_DPR_NODE_HSI, } },
126 { VSP1_ENTITY_HST, 0, VI6_DPR_HST_ROUTE, { VI6_DPR_NODE_HST, } },
127 { VSP1_ENTITY_LIF, 0, 0, { VI6_DPR_NODE_LIF, } },
128 { VSP1_ENTITY_LUT, 0, VI6_DPR_LUT_ROUTE, { VI6_DPR_NODE_LUT, } },
129 { VSP1_ENTITY_RPF, 0, VI6_DPR_RPF_ROUTE(0), { VI6_DPR_NODE_RPF(0), } },
130 { VSP1_ENTITY_RPF, 1, VI6_DPR_RPF_ROUTE(1), { VI6_DPR_NODE_RPF(1), } },
131 { VSP1_ENTITY_RPF, 2, VI6_DPR_RPF_ROUTE(2), { VI6_DPR_NODE_RPF(2), } },
132 { VSP1_ENTITY_RPF, 3, VI6_DPR_RPF_ROUTE(3), { VI6_DPR_NODE_RPF(3), } },
133 { VSP1_ENTITY_RPF, 4, VI6_DPR_RPF_ROUTE(4), { VI6_DPR_NODE_RPF(4), } },
134 { VSP1_ENTITY_SRU, 0, VI6_DPR_SRU_ROUTE, { VI6_DPR_NODE_SRU, } },
135 { VSP1_ENTITY_UDS, 0, VI6_DPR_UDS_ROUTE(0), { VI6_DPR_NODE_UDS(0), } },
136 { VSP1_ENTITY_UDS, 1, VI6_DPR_UDS_ROUTE(1), { VI6_DPR_NODE_UDS(1), } },
137 { VSP1_ENTITY_UDS, 2, VI6_DPR_UDS_ROUTE(2), { VI6_DPR_NODE_UDS(2), } },
138 { VSP1_ENTITY_WPF, 0, 0, { VI6_DPR_NODE_WPF(0), } },
139 { VSP1_ENTITY_WPF, 1, 0, { VI6_DPR_NODE_WPF(1), } },
140 { VSP1_ENTITY_WPF, 2, 0, { VI6_DPR_NODE_WPF(2), } },
141 { VSP1_ENTITY_WPF, 3, 0, { VI6_DPR_NODE_WPF(3), } },
144 int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
145 unsigned int num_pads)
149 for (i = 0; i < ARRAY_SIZE(vsp1_routes); ++i) {
150 if (vsp1_routes[i].type == entity->type &&
151 vsp1_routes[i].index == entity->index) {
152 entity->route = &vsp1_routes[i];
157 if (i == ARRAY_SIZE(vsp1_routes))
161 entity->source_pad = num_pads - 1;
163 /* Allocate formats and pads. */
164 entity->formats = devm_kzalloc(vsp1->dev,
165 num_pads * sizeof(*entity->formats),
167 if (entity->formats == NULL)
170 entity->pads = devm_kzalloc(vsp1->dev, num_pads * sizeof(*entity->pads),
172 if (entity->pads == NULL)
175 /* Initialize pads. */
176 for (i = 0; i < num_pads - 1; ++i)
177 entity->pads[i].flags = MEDIA_PAD_FL_SINK;
179 entity->pads[num_pads - 1].flags = MEDIA_PAD_FL_SOURCE;
181 /* Initialize the media entity. */
182 return media_entity_init(&entity->subdev.entity, num_pads,
186 void vsp1_entity_destroy(struct vsp1_entity *entity)
188 if (entity->subdev.ctrl_handler)
189 v4l2_ctrl_handler_free(entity->subdev.ctrl_handler);
190 media_entity_cleanup(&entity->subdev.entity);