2 * Support for Medifield PNW Camera Imaging ISP subsystem.
4 * Copyright (c) 2010 Intel Corporation. All Rights Reserved.
6 * Copyright (c) 2010 Silicon Hive www.siliconhive.com.
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License version
10 * 2 as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
24 #include <media/v4l2-event.h>
25 #include <media/v4l2-mediabus.h>
27 #include <media/videobuf-vmalloc.h>
28 #include <linux/delay.h>
32 #include "atomisp_cmd.h"
33 #include "atomisp_common.h"
34 #include "atomisp_file.h"
35 #include "atomisp_internal.h"
36 #include "atomisp_ioctl.h"
38 static void file_work(struct work_struct *work)
40 struct atomisp_file_device *file_dev =
41 container_of(work, struct atomisp_file_device, work);
42 struct atomisp_device *isp = file_dev->isp;
43 /* only support file injection on subdev0 */
44 struct atomisp_sub_device *asd = &isp->asd[0];
45 struct atomisp_video_pipe *out_pipe = &asd->video_in;
46 unsigned short *buf = videobuf_to_vmalloc(out_pipe->outq.bufs[0]);
47 struct v4l2_mbus_framefmt isp_sink_fmt;
49 if (asd->streaming != ATOMISP_DEVICE_STREAMING_ENABLED)
52 dev_dbg(isp->dev, ">%s: ready to start streaming\n", __func__);
53 isp_sink_fmt = *atomisp_subdev_get_ffmt(&asd->subdev, NULL,
54 V4L2_SUBDEV_FORMAT_ACTIVE,
55 ATOMISP_SUBDEV_PAD_SINK);
57 while (!atomisp_css_isp_has_started())
58 usleep_range(1000, 1500);
60 atomisp_css_send_input_frame(asd, buf, isp_sink_fmt.width,
62 dev_dbg(isp->dev, "<%s: streaming done\n", __func__);
65 static int file_input_s_stream(struct v4l2_subdev *sd, int enable)
67 struct atomisp_file_device *file_dev = v4l2_get_subdevdata(sd);
68 struct atomisp_device *isp = file_dev->isp;
69 /* only support file injection on subdev0 */
70 struct atomisp_sub_device *asd = &isp->asd[0];
72 dev_dbg(isp->dev, "%s: enable %d\n", __func__, enable);
74 if (asd->streaming != ATOMISP_DEVICE_STREAMING_ENABLED)
77 queue_work(file_dev->work_queue, &file_dev->work);
80 cancel_work_sync(&file_dev->work);
84 static int file_input_g_parm(struct v4l2_subdev *sd,
85 struct v4l2_streamparm *param)
91 static int file_input_s_parm(struct v4l2_subdev *sd,
92 struct v4l2_streamparm *param)
98 static int file_input_get_fmt(struct v4l2_subdev *sd,
99 struct v4l2_subdev_pad_config *cfg,
100 struct v4l2_subdev_format *format)
102 struct v4l2_mbus_framefmt *fmt = &format->format;
103 struct atomisp_file_device *file_dev = v4l2_get_subdevdata(sd);
104 struct atomisp_device *isp = file_dev->isp;
105 /* only support file injection on subdev0 */
106 struct atomisp_sub_device *asd = &isp->asd[0];
107 struct v4l2_mbus_framefmt *isp_sink_fmt;
110 isp_sink_fmt = atomisp_subdev_get_ffmt(&asd->subdev, NULL,
111 V4L2_SUBDEV_FORMAT_ACTIVE,
112 ATOMISP_SUBDEV_PAD_SINK);
114 fmt->width = isp_sink_fmt->width;
115 fmt->height = isp_sink_fmt->height;
116 fmt->code = isp_sink_fmt->code;
121 static int file_input_set_fmt(struct v4l2_subdev *sd,
122 struct v4l2_subdev_pad_config *cfg,
123 struct v4l2_subdev_format *format)
125 struct v4l2_mbus_framefmt *fmt = &format->format;
128 file_input_get_fmt(sd, cfg, format);
129 if (format->which == V4L2_SUBDEV_FORMAT_TRY)
134 static int file_input_log_status(struct v4l2_subdev *sd)
140 static int file_input_s_power(struct v4l2_subdev *sd, int on)
146 static int file_input_enum_mbus_code(struct v4l2_subdev *sd,
147 struct v4l2_subdev_pad_config *cfg,
148 struct v4l2_subdev_mbus_code_enum *code)
154 static int file_input_enum_frame_size(struct v4l2_subdev *sd,
155 struct v4l2_subdev_pad_config *cfg,
156 struct v4l2_subdev_frame_size_enum *fse)
162 static int file_input_enum_frame_ival(struct v4l2_subdev *sd,
163 struct v4l2_subdev_pad_config *cfg,
164 struct v4l2_subdev_frame_interval_enum
171 static const struct v4l2_subdev_video_ops file_input_video_ops = {
172 .s_stream = file_input_s_stream,
173 .g_parm = file_input_g_parm,
174 .s_parm = file_input_s_parm,
177 static const struct v4l2_subdev_core_ops file_input_core_ops = {
178 .log_status = file_input_log_status,
179 .s_power = file_input_s_power,
182 static const struct v4l2_subdev_pad_ops file_input_pad_ops = {
183 .enum_mbus_code = file_input_enum_mbus_code,
184 .enum_frame_size = file_input_enum_frame_size,
185 .enum_frame_interval = file_input_enum_frame_ival,
186 .get_fmt = file_input_get_fmt,
187 .set_fmt = file_input_set_fmt,
190 static const struct v4l2_subdev_ops file_input_ops = {
191 .core = &file_input_core_ops,
192 .video = &file_input_video_ops,
193 .pad = &file_input_pad_ops,
197 atomisp_file_input_unregister_entities(struct atomisp_file_device *file_dev)
199 media_entity_cleanup(&file_dev->sd.entity);
200 v4l2_device_unregister_subdev(&file_dev->sd);
203 int atomisp_file_input_register_entities(struct atomisp_file_device *file_dev,
204 struct v4l2_device *vdev)
206 /* Register the subdev and video nodes. */
207 return v4l2_device_register_subdev(vdev, &file_dev->sd);
210 void atomisp_file_input_cleanup(struct atomisp_device *isp)
212 struct atomisp_file_device *file_dev = &isp->file_dev;
214 if (file_dev->work_queue) {
215 destroy_workqueue(file_dev->work_queue);
216 file_dev->work_queue = NULL;
220 int atomisp_file_input_init(struct atomisp_device *isp)
222 struct atomisp_file_device *file_dev = &isp->file_dev;
223 struct v4l2_subdev *sd = &file_dev->sd;
224 struct media_pad *pads = file_dev->pads;
225 struct media_entity *me = &sd->entity;
228 file_dev->work_queue = alloc_workqueue(isp->v4l2_dev.name, 0, 1);
229 if (file_dev->work_queue == NULL) {
230 dev_err(isp->dev, "Failed to initialize file inject workq\n");
234 INIT_WORK(&file_dev->work, file_work);
236 v4l2_subdev_init(sd, &file_input_ops);
237 sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
238 strcpy(sd->name, "file_input_subdev");
239 v4l2_set_subdevdata(sd, file_dev);
241 pads[0].flags = MEDIA_PAD_FL_SINK;
242 me->function = MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN;
244 return media_entity_pads_init(me, 1, pads);