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->vsp1->info->uapi || !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 void vsp1_entity_route_setup(struct vsp1_entity *source)
63 struct vsp1_entity *sink;
65 if (source->route->reg == 0)
68 sink = container_of(source->sink, struct vsp1_entity, subdev.entity);
69 vsp1_mod_write(source, source->route->reg,
70 sink->route->inputs[source->sink_pad]);
73 /* -----------------------------------------------------------------------------
74 * V4L2 Subdevice Operations
77 struct v4l2_mbus_framefmt *
78 vsp1_entity_get_pad_format(struct vsp1_entity *entity,
79 struct v4l2_subdev_pad_config *cfg,
80 unsigned int pad, u32 which)
83 case V4L2_SUBDEV_FORMAT_TRY:
84 return v4l2_subdev_get_try_format(&entity->subdev, cfg, pad);
85 case V4L2_SUBDEV_FORMAT_ACTIVE:
86 return &entity->formats[pad];
93 * vsp1_entity_init_formats - Initialize formats on all pads
94 * @subdev: V4L2 subdevice
95 * @cfg: V4L2 subdev pad configuration
97 * Initialize all pad formats with default values. If cfg is not NULL, try
98 * formats are initialized on the file handle. Otherwise active formats are
99 * initialized on the device.
101 void vsp1_entity_init_formats(struct v4l2_subdev *subdev,
102 struct v4l2_subdev_pad_config *cfg)
104 struct v4l2_subdev_format format;
107 for (pad = 0; pad < subdev->entity.num_pads - 1; ++pad) {
108 memset(&format, 0, sizeof(format));
111 format.which = cfg ? V4L2_SUBDEV_FORMAT_TRY
112 : V4L2_SUBDEV_FORMAT_ACTIVE;
114 v4l2_subdev_call(subdev, pad, set_fmt, cfg, &format);
118 static int vsp1_entity_open(struct v4l2_subdev *subdev,
119 struct v4l2_subdev_fh *fh)
121 vsp1_entity_init_formats(subdev, fh->pad);
126 const struct v4l2_subdev_internal_ops vsp1_subdev_internal_ops = {
127 .open = vsp1_entity_open,
130 /* -----------------------------------------------------------------------------
134 int vsp1_entity_link_setup(struct media_entity *entity,
135 const struct media_pad *local,
136 const struct media_pad *remote, u32 flags)
138 struct vsp1_entity *source;
140 if (!(local->flags & MEDIA_PAD_FL_SOURCE))
143 source = container_of(local->entity, struct vsp1_entity, subdev.entity);
148 if (flags & MEDIA_LNK_FL_ENABLED) {
151 source->sink = remote->entity;
152 source->sink_pad = remote->index;
155 source->sink_pad = 0;
161 /* -----------------------------------------------------------------------------
165 static const struct vsp1_route vsp1_routes[] = {
166 { VSP1_ENTITY_BRU, 0, VI6_DPR_BRU_ROUTE,
167 { VI6_DPR_NODE_BRU_IN(0), VI6_DPR_NODE_BRU_IN(1),
168 VI6_DPR_NODE_BRU_IN(2), VI6_DPR_NODE_BRU_IN(3),
169 VI6_DPR_NODE_BRU_IN(4) } },
170 { VSP1_ENTITY_HSI, 0, VI6_DPR_HSI_ROUTE, { VI6_DPR_NODE_HSI, } },
171 { VSP1_ENTITY_HST, 0, VI6_DPR_HST_ROUTE, { VI6_DPR_NODE_HST, } },
172 { VSP1_ENTITY_LIF, 0, 0, { VI6_DPR_NODE_LIF, } },
173 { VSP1_ENTITY_LUT, 0, VI6_DPR_LUT_ROUTE, { VI6_DPR_NODE_LUT, } },
174 { VSP1_ENTITY_RPF, 0, VI6_DPR_RPF_ROUTE(0), { VI6_DPR_NODE_RPF(0), } },
175 { VSP1_ENTITY_RPF, 1, VI6_DPR_RPF_ROUTE(1), { VI6_DPR_NODE_RPF(1), } },
176 { VSP1_ENTITY_RPF, 2, VI6_DPR_RPF_ROUTE(2), { VI6_DPR_NODE_RPF(2), } },
177 { VSP1_ENTITY_RPF, 3, VI6_DPR_RPF_ROUTE(3), { VI6_DPR_NODE_RPF(3), } },
178 { VSP1_ENTITY_RPF, 4, VI6_DPR_RPF_ROUTE(4), { VI6_DPR_NODE_RPF(4), } },
179 { VSP1_ENTITY_SRU, 0, VI6_DPR_SRU_ROUTE, { VI6_DPR_NODE_SRU, } },
180 { VSP1_ENTITY_UDS, 0, VI6_DPR_UDS_ROUTE(0), { VI6_DPR_NODE_UDS(0), } },
181 { VSP1_ENTITY_UDS, 1, VI6_DPR_UDS_ROUTE(1), { VI6_DPR_NODE_UDS(1), } },
182 { VSP1_ENTITY_UDS, 2, VI6_DPR_UDS_ROUTE(2), { VI6_DPR_NODE_UDS(2), } },
183 { VSP1_ENTITY_WPF, 0, 0, { VI6_DPR_NODE_WPF(0), } },
184 { VSP1_ENTITY_WPF, 1, 0, { VI6_DPR_NODE_WPF(1), } },
185 { VSP1_ENTITY_WPF, 2, 0, { VI6_DPR_NODE_WPF(2), } },
186 { VSP1_ENTITY_WPF, 3, 0, { VI6_DPR_NODE_WPF(3), } },
189 int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
190 unsigned int num_pads)
194 for (i = 0; i < ARRAY_SIZE(vsp1_routes); ++i) {
195 if (vsp1_routes[i].type == entity->type &&
196 vsp1_routes[i].index == entity->index) {
197 entity->route = &vsp1_routes[i];
202 if (i == ARRAY_SIZE(vsp1_routes))
205 spin_lock_init(&entity->lock);
208 entity->source_pad = num_pads - 1;
210 /* Allocate formats and pads. */
211 entity->formats = devm_kzalloc(vsp1->dev,
212 num_pads * sizeof(*entity->formats),
214 if (entity->formats == NULL)
217 entity->pads = devm_kzalloc(vsp1->dev, num_pads * sizeof(*entity->pads),
219 if (entity->pads == NULL)
222 /* Initialize pads. */
223 for (i = 0; i < num_pads - 1; ++i)
224 entity->pads[i].flags = MEDIA_PAD_FL_SINK;
226 entity->pads[num_pads - 1].flags = MEDIA_PAD_FL_SOURCE;
228 /* Initialize the media entity. */
229 return media_entity_pads_init(&entity->subdev.entity, num_pads,
233 void vsp1_entity_destroy(struct vsp1_entity *entity)
235 if (entity->subdev.ctrl_handler)
236 v4l2_ctrl_handler_free(entity->subdev.ctrl_handler);
237 media_entity_cleanup(&entity->subdev.entity);