projects / openwrt / staging / wigyori.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
brcm2708: update to v3.18
[openwrt/staging/wigyori.git] / target / linux / brcm2708 / patches-3.18 / 0027-bcm2835-add-v4l2-camera-device.patch
1 From 19c1ada1c282d61163b6a24a6ee53517caec094c Mon Sep 17 00:00:00 2001
2 From: Vincent Sanders <vincent.sanders@collabora.co.uk>
3 Date: Wed, 30 Jan 2013 12:45:18 +0000
4 Subject: [PATCH 027/114] bcm2835: add v4l2 camera device
5
6 - Supports raw YUV capture, preview, JPEG and H264.
7 - Uses videobuf2 for data transfer, using dma_buf.
8 - Uses 3.6.10 timestamping
9 - Camera power based on use
10 - Uses immutable input mode on video encoder
11
12 Signed-off-by: Daniel Stone <daniels@collabora.com>
13 Signed-off-by: Luke Diamand <luked@broadcom.com>
14 ---
15 Documentation/video4linux/bcm2835-v4l2.txt | 60 +
16 drivers/media/platform/Kconfig | 1 +
17 drivers/media/platform/Makefile | 2 +
18 drivers/media/platform/bcm2835/Kconfig | 25 +
19 drivers/media/platform/bcm2835/Makefile | 5 +
20 drivers/media/platform/bcm2835/bcm2835-camera.c | 1476 +++++++++++++++++
21 drivers/media/platform/bcm2835/bcm2835-camera.h | 113 ++
22 drivers/media/platform/bcm2835/controls.c | 725 ++++++++
23 drivers/media/platform/bcm2835/mmal-common.h | 51 +
24 drivers/media/platform/bcm2835/mmal-encodings.h | 93 ++
25 drivers/media/platform/bcm2835/mmal-msg-common.h | 50 +
26 drivers/media/platform/bcm2835/mmal-msg-format.h | 81 +
27 drivers/media/platform/bcm2835/mmal-msg-port.h | 107 ++
28 drivers/media/platform/bcm2835/mmal-msg.h | 404 +++++
29 drivers/media/platform/bcm2835/mmal-parameters.h | 539 ++++++
30 drivers/media/platform/bcm2835/mmal-vchiq.c | 1916 ++++++++++++++++++++++
31 drivers/media/platform/bcm2835/mmal-vchiq.h | 178 ++
32 17 files changed, 5826 insertions(+)
33 create mode 100644 Documentation/video4linux/bcm2835-v4l2.txt
34 create mode 100644 drivers/media/platform/bcm2835/Kconfig
35 create mode 100644 drivers/media/platform/bcm2835/Makefile
36 create mode 100644 drivers/media/platform/bcm2835/bcm2835-camera.c
37 create mode 100644 drivers/media/platform/bcm2835/bcm2835-camera.h
38 create mode 100644 drivers/media/platform/bcm2835/controls.c
39 create mode 100644 drivers/media/platform/bcm2835/mmal-common.h
40 create mode 100644 drivers/media/platform/bcm2835/mmal-encodings.h
41 create mode 100644 drivers/media/platform/bcm2835/mmal-msg-common.h
42 create mode 100644 drivers/media/platform/bcm2835/mmal-msg-format.h
43 create mode 100644 drivers/media/platform/bcm2835/mmal-msg-port.h
44 create mode 100644 drivers/media/platform/bcm2835/mmal-msg.h
45 create mode 100644 drivers/media/platform/bcm2835/mmal-parameters.h
46 create mode 100644 drivers/media/platform/bcm2835/mmal-vchiq.c
47 create mode 100644 drivers/media/platform/bcm2835/mmal-vchiq.h
48
49 diff --git a/Documentation/video4linux/bcm2835-v4l2.txt b/Documentation/video4linux/bcm2835-v4l2.txt
50 new file mode 100644
51 index 0000000..c585a8f
52 --- /dev/null
53 +++ b/Documentation/video4linux/bcm2835-v4l2.txt
54 @@ -0,0 +1,60 @@
55 +
56 +BCM2835 (aka Raspberry Pi) V4L2 driver
57 +======================================
58 +
59 +1. Copyright
60 +============
61 +
62 +Copyright © 2013 Raspberry Pi (Trading) Ltd.
63 +
64 +2. License
65 +==========
66 +
67 +This program is free software; you can redistribute it and/or modify
68 +it under the terms of the GNU General Public License as published by
69 +the Free Software Foundation; either version 2 of the License, or
70 +(at your option) any later version.
71 +
72 +This program is distributed in the hope that it will be useful,
73 +but WITHOUT ANY WARRANTY; without even the implied warranty of
74 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
75 +GNU General Public License for more details.
76 +
77 +You should have received a copy of the GNU General Public License
78 +along with this program; if not, write to the Free Software
79 +Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
80 +
81 +3. Quick Start
82 +==============
83 +
84 +You need a version 1.0 or later of v4l2-ctl, available from:
85 + git://git.linuxtv.org/v4l-utils.git
86 +
87 +$ sudo modprobe bcm2835-v4l2
88 +
89 +Turn on the overlay:
90 +
91 +$ v4l2-ctl --overlay=1
92 +
93 +Turn off the overlay:
94 +
95 +$ v4l2-ctl --overlay=0
96 +
97 +Set the capture format for video:
98 +
99 +$ v4l2-ctl --set-fmt-video=width=1920,height=1088,pixelformat=4
100 +
101 +(Note: 1088 not 1080).
102 +
103 +Capture:
104 +
105 +$ v4l2-ctl --stream-mmap=3 --stream-count=100 --stream-to=somefile.h264
106 +
107 +Stills capture:
108 +
109 +$ v4l2-ctl --set-fmt-video=width=2592,height=1944,pixelformat=3
110 +$ v4l2-ctl --stream-mmap=3 --stream-count=1 --stream-to=somefile.jpg
111 +
112 +List of available formats:
113 +
114 +$ v4l2-ctl --list-formats
115 diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
116 index 3aac88f..9bc18aa 100644
117 --- a/drivers/media/platform/Kconfig
118 +++ b/drivers/media/platform/Kconfig
119 @@ -126,6 +126,7 @@ config VIDEO_S3C_CAMIF
120 source "drivers/media/platform/soc_camera/Kconfig"
121 source "drivers/media/platform/exynos4-is/Kconfig"
122 source "drivers/media/platform/s5p-tv/Kconfig"
123 +source "drivers/media/platform/bcm2835/Kconfig"
124
125 endif # V4L_PLATFORM_DRIVERS
126
127 diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile
128 index 579046b..9c9cb34 100644
129 --- a/drivers/media/platform/Makefile
130 +++ b/drivers/media/platform/Makefile
131 @@ -49,4 +49,6 @@ obj-$(CONFIG_VIDEO_RENESAS_VSP1) += vsp1/
132
133 obj-y += omap/
134
135 +obj-$(CONFIG_VIDEO_BCM2835) += bcm2835/
136 +
137 ccflags-y += -I$(srctree)/drivers/media/i2c
138 diff --git a/drivers/media/platform/bcm2835/Kconfig b/drivers/media/platform/bcm2835/Kconfig
139 new file mode 100644
140 index 0000000..a8fd172
141 --- /dev/null
142 +++ b/drivers/media/platform/bcm2835/Kconfig
143 @@ -0,0 +1,25 @@
144 +# Broadcom VideoCore IV v4l2 camera support
145 +
146 +config VIDEO_BCM2835
147 + bool "Broadcom BCM2835 camera interface driver"
148 + depends on VIDEO_V4L2 && ARCH_BCM2708
149 + ---help---
150 + Say Y here to enable camera host interface devices for
151 + Broadcom BCM2835 SoC. This operates over the VCHIQ interface
152 + to a service running on VideoCore.
153 +
154 +
155 +if VIDEO_BCM2835
156 +
157 +config VIDEO_BCM2835_MMAL
158 + tristate "Broadcom BM2835 MMAL camera interface driver"
159 + depends on BCM2708_VCHIQ
160 + select VIDEOBUF2_VMALLOC
161 + ---help---
162 + This is a V4L2 driver for the Broadcom BCM2835 MMAL camera host interface
163 +
164 + To compile this driver as a module, choose M here: the
165 + module will be called bcm2835-v4l2.o
166 +
167 +
168 +endif # VIDEO_BM2835
169 diff --git a/drivers/media/platform/bcm2835/Makefile b/drivers/media/platform/bcm2835/Makefile
170 new file mode 100644
171 index 0000000..f17c79c
172 --- /dev/null
173 +++ b/drivers/media/platform/bcm2835/Makefile
174 @@ -0,0 +1,5 @@
175 +bcm2835-v4l2-objs := bcm2835-camera.o controls.o mmal-vchiq.o
176 +
177 +obj-$(CONFIG_VIDEO_BCM2835_MMAL) += bcm2835-v4l2.o
178 +
179 +ccflags-$(CONFIG_VIDEO_BCM2835) += -Idrivers/misc/vc04_services -Idrivers/misc/vc04_services/interface/vcos/linuxkernel -D__VCCOREVER__=0x04000000
180 diff --git a/drivers/media/platform/bcm2835/bcm2835-camera.c b/drivers/media/platform/bcm2835/bcm2835-camera.c
181 new file mode 100644
182 index 0000000..1c9d9d5
183 --- /dev/null
184 +++ b/drivers/media/platform/bcm2835/bcm2835-camera.c
185 @@ -0,0 +1,1476 @@
186 +/*
187 + * Broadcom BM2835 V4L2 driver
188 + *
189 + * Copyright © 2013 Raspberry Pi (Trading) Ltd.
190 + *
191 + * This file is subject to the terms and conditions of the GNU General Public
192 + * License. See the file COPYING in the main directory of this archive
193 + * for more details.
194 + *
195 + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk>
196 + * Dave Stevenson <dsteve@broadcom.com>
197 + * Simon Mellor <simellor@broadcom.com>
198 + * Luke Diamand <luked@broadcom.com>
199 + */
200 +
201 +#include <linux/errno.h>
202 +#include <linux/kernel.h>
203 +#include <linux/module.h>
204 +#include <linux/slab.h>
205 +#include <media/videobuf2-vmalloc.h>
206 +#include <media/videobuf2-dma-contig.h>
207 +#include <media/v4l2-device.h>
208 +#include <media/v4l2-ioctl.h>
209 +#include <media/v4l2-ctrls.h>
210 +#include <media/v4l2-fh.h>
211 +#include <media/v4l2-event.h>
212 +#include <media/v4l2-common.h>
213 +#include <linux/delay.h>
214 +
215 +#include "mmal-common.h"
216 +#include "mmal-encodings.h"
217 +#include "mmal-vchiq.h"
218 +#include "mmal-msg.h"
219 +#include "mmal-parameters.h"
220 +#include "bcm2835-camera.h"
221 +
222 +#define BM2835_MMAL_VERSION "0.0.2"
223 +#define BM2835_MMAL_MODULE_NAME "bcm2835-v4l2"
224 +
225 +#define MAX_WIDTH 2592
226 +#define MAX_HEIGHT 1944
227 +#define MIN_BUFFER_SIZE (80*1024)
228 +
229 +#define MAX_VIDEO_MODE_WIDTH 1280
230 +#define MAX_VIDEO_MODE_HEIGHT 720
231 +
232 +MODULE_DESCRIPTION("Broadcom 2835 MMAL video capture");
233 +MODULE_AUTHOR("Vincent Sanders");
234 +MODULE_LICENSE("GPL");
235 +MODULE_VERSION(BM2835_MMAL_VERSION);
236 +
237 +int bcm2835_v4l2_debug;
238 +module_param_named(debug, bcm2835_v4l2_debug, int, 0644);
239 +MODULE_PARM_DESC(bcm2835_v4l2_debug, "Debug level 0-2");
240 +
241 +static struct bm2835_mmal_dev *gdev; /* global device data */
242 +
243 +/* video formats */
244 +static struct mmal_fmt formats[] = {
245 + {
246 + .name = "4:2:0, packed YUV",
247 + .fourcc = V4L2_PIX_FMT_YUV420,
248 + .mmal = MMAL_ENCODING_I420,
249 + .depth = 12,
250 + .mmal_component = MMAL_COMPONENT_CAMERA,
251 + },
252 + {
253 + .name = "4:2:2, packed, YUYV",
254 + .fourcc = V4L2_PIX_FMT_YUYV,
255 + .mmal = MMAL_ENCODING_YUYV,
256 + .depth = 16,
257 + .mmal_component = MMAL_COMPONENT_CAMERA,
258 + },
259 + {
260 + .name = "RGB24 (BE)",
261 + .fourcc = V4L2_PIX_FMT_BGR24,
262 + .mmal = MMAL_ENCODING_BGR24,
263 + .depth = 24,
264 + .mmal_component = MMAL_COMPONENT_CAMERA,
265 + },
266 + {
267 + .name = "JPEG",
268 + .fourcc = V4L2_PIX_FMT_JPEG,
269 + .mmal = MMAL_ENCODING_JPEG,
270 + .depth = 8,
271 + .mmal_component = MMAL_COMPONENT_IMAGE_ENCODE,
272 + },
273 + {
274 + .name = "H264",
275 + .fourcc = V4L2_PIX_FMT_H264,
276 + .mmal = MMAL_ENCODING_H264,
277 + .depth = 8,
278 + .mmal_component = MMAL_COMPONENT_VIDEO_ENCODE,
279 + }
280 +};
281 +
282 +static struct mmal_fmt *get_format(struct v4l2_format *f)
283 +{
284 + struct mmal_fmt *fmt;
285 + unsigned int k;
286 +
287 + for (k = 0; k < ARRAY_SIZE(formats); k++) {
288 + fmt = &formats[k];
289 + if (fmt->fourcc == f->fmt.pix.pixelformat)
290 + break;
291 + }
292 +
293 + if (k == ARRAY_SIZE(formats))
294 + return NULL;
295 +
296 + return &formats[k];
297 +}
298 +
299 +/* ------------------------------------------------------------------
300 + Videobuf queue operations
301 + ------------------------------------------------------------------*/
302 +
303 +static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
304 + unsigned int *nbuffers, unsigned int *nplanes,
305 + unsigned int sizes[], void *alloc_ctxs[])
306 +{
307 + struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vq);
308 + unsigned long size;
309 +
310 + /* refuse queue setup if port is not configured */
311 + if (dev->capture.port == NULL) {
312 + v4l2_err(&dev->v4l2_dev,
313 + "%s: capture port not configured\n", __func__);
314 + return -EINVAL;
315 + }
316 +
317 + size = dev->capture.port->current_buffer.size;
318 + if (size == 0) {
319 + v4l2_err(&dev->v4l2_dev,
320 + "%s: capture port buffer size is zero\n", __func__);
321 + return -EINVAL;
322 + }
323 +
324 + if (*nbuffers < (dev->capture.port->current_buffer.num + 2))
325 + *nbuffers = (dev->capture.port->current_buffer.num + 2);
326 +
327 + *nplanes = 1;
328 +
329 + sizes[0] = size;
330 +
331 + /*
332 + * videobuf2-vmalloc allocator is context-less so no need to set
333 + * alloc_ctxs array.
334 + */
335 +
336 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "%s: dev:%p\n",
337 + __func__, dev);
338 +
339 + return 0;
340 +}
341 +
342 +static int buffer_prepare(struct vb2_buffer *vb)
343 +{
344 + struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
345 + unsigned long size;
346 +
347 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "%s: dev:%p\n",
348 + __func__, dev);
349 +
350 + BUG_ON(dev->capture.port == NULL);
351 + BUG_ON(dev->capture.fmt == NULL);
352 +
353 + size = dev->capture.stride * dev->capture.height;
354 + if (vb2_plane_size(vb, 0) < size) {
355 + v4l2_err(&dev->v4l2_dev,
356 + "%s data will not fit into plane (%lu < %lu)\n",
357 + __func__, vb2_plane_size(vb, 0), size);
358 + return -EINVAL;
359 + }
360 +
361 + return 0;
362 +}
363 +
364 +static inline bool is_capturing(struct bm2835_mmal_dev *dev)
365 +{
366 + return dev->capture.camera_port ==
367 + &dev->
368 + component[MMAL_COMPONENT_CAMERA]->output[MMAL_CAMERA_PORT_CAPTURE];
369 +}
370 +
371 +static void buffer_cb(struct vchiq_mmal_instance *instance,
372 + struct vchiq_mmal_port *port,
373 + int status,
374 + struct mmal_buffer *buf,
375 + unsigned long length, u32 mmal_flags, s64 dts, s64 pts)
376 +{
377 + struct bm2835_mmal_dev *dev = port->cb_ctx;
378 +
379 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
380 + "%s: status:%d, buf:%p, length:%lu, flags %u, pts %lld\n",
381 + __func__, status, buf, length, mmal_flags, pts);
382 +
383 + if (status != 0) {
384 + /* error in transfer */
385 + if (buf != NULL) {
386 + /* there was a buffer with the error so return it */
387 + vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
388 + }
389 + return;
390 + } else if (length == 0) {
391 + /* stream ended */
392 + if (buf != NULL) {
393 + /* this should only ever happen if the port is
394 + * disabled and there are buffers still queued
395 + */
396 + vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
397 + pr_debug("Empty buffer");
398 + } else if (dev->capture.frame_count) {
399 + /* grab another frame */
400 + if (is_capturing(dev)) {
401 + pr_debug("Grab another frame");
402 + vchiq_mmal_port_parameter_set(
403 + instance,
404 + dev->capture.
405 + camera_port,
406 + MMAL_PARAMETER_CAPTURE,
407 + &dev->capture.
408 + frame_count,
409 + sizeof(dev->capture.frame_count));
410 + }
411 + } else {
412 + /* signal frame completion */
413 + complete(&dev->capture.frame_cmplt);
414 + }
415 + } else {
416 + if (dev->capture.frame_count) {
417 + if (dev->capture.vc_start_timestamp != -1) {
418 + s64 runtime_us = pts -
419 + dev->capture.vc_start_timestamp;
420 + u32 div = 0;
421 + u32 rem = 0;
422 +
423 + div =
424 + div_u64_rem(runtime_us, USEC_PER_SEC, &rem);
425 + buf->vb.v4l2_buf.timestamp.tv_sec =
426 + dev->capture.kernel_start_ts.tv_sec - 1 +
427 + div;
428 + buf->vb.v4l2_buf.timestamp.tv_usec =
429 + dev->capture.kernel_start_ts.tv_usec + rem;
430 +
431 + if (buf->vb.v4l2_buf.timestamp.tv_usec >=
432 + USEC_PER_SEC) {
433 + buf->vb.v4l2_buf.timestamp.tv_sec++;
434 + buf->vb.v4l2_buf.timestamp.tv_usec -=
435 + USEC_PER_SEC;
436 + }
437 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
438 + "Convert start time %d.%06d and %llu"
439 + "with offset %llu to %d.%06d\n",
440 + (int)dev->capture.kernel_start_ts.
441 + tv_sec,
442 + (int)dev->capture.kernel_start_ts.
443 + tv_usec,
444 + dev->capture.vc_start_timestamp, pts,
445 + (int)buf->vb.v4l2_buf.timestamp.tv_sec,
446 + (int)buf->vb.v4l2_buf.timestamp.
447 + tv_usec);
448 + } else {
449 + v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
450 + }
451 +
452 + vb2_set_plane_payload(&buf->vb, 0, length);
453 + vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE);
454 +
455 + if (mmal_flags & MMAL_BUFFER_HEADER_FLAG_EOS &&
456 + is_capturing(dev)) {
457 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
458 + "Grab another frame as buffer has EOS");
459 + vchiq_mmal_port_parameter_set(
460 + instance,
461 + dev->capture.
462 + camera_port,
463 + MMAL_PARAMETER_CAPTURE,
464 + &dev->capture.
465 + frame_count,
466 + sizeof(dev->capture.frame_count));
467 + }
468 + } else {
469 + /* signal frame completion */
470 + complete(&dev->capture.frame_cmplt);
471 + }
472 + }
473 +}
474 +
475 +static int enable_camera(struct bm2835_mmal_dev *dev)
476 +{
477 + int ret;
478 + if (!dev->camera_use_count) {
479 + ret = vchiq_mmal_component_enable(
480 + dev->instance,
481 + dev->component[MMAL_COMPONENT_CAMERA]);
482 + if (ret < 0) {
483 + v4l2_err(&dev->v4l2_dev,
484 + "Failed enabling camera, ret %d\n", ret);
485 + return -EINVAL;
486 + }
487 + }
488 + dev->camera_use_count++;
489 + v4l2_dbg(1, bcm2835_v4l2_debug,
490 + &dev->v4l2_dev, "enabled camera (refcount %d)\n",
491 + dev->camera_use_count);
492 + return 0;
493 +}
494 +
495 +static int disable_camera(struct bm2835_mmal_dev *dev)
496 +{
497 + int ret;
498 + if (!dev->camera_use_count) {
499 + v4l2_err(&dev->v4l2_dev,
500 + "Disabled the camera when already disabled\n");
501 + return -EINVAL;
502 + }
503 + dev->camera_use_count--;
504 + if (!dev->camera_use_count) {
505 + unsigned int i = 0xFFFFFFFF;
506 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
507 + "Disabling camera\n");
508 + ret =
509 + vchiq_mmal_component_disable(
510 + dev->instance,
511 + dev->component[MMAL_COMPONENT_CAMERA]);
512 + if (ret < 0) {
513 + v4l2_err(&dev->v4l2_dev,
514 + "Failed disabling camera, ret %d\n", ret);
515 + return -EINVAL;
516 + }
517 + vchiq_mmal_port_parameter_set(
518 + dev->instance,
519 + &dev->component[MMAL_COMPONENT_CAMERA]->control,
520 + MMAL_PARAMETER_CAMERA_NUM, &i,
521 + sizeof(i));
522 + }
523 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
524 + "Camera refcount now %d\n", dev->camera_use_count);
525 + return 0;
526 +}
527 +
528 +static void buffer_queue(struct vb2_buffer *vb)
529 +{
530 + struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
531 + struct mmal_buffer *buf = container_of(vb, struct mmal_buffer, vb);
532 + int ret;
533 +
534 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
535 + "%s: dev:%p buf:%p\n", __func__, dev, buf);
536 +
537 + buf->buffer = vb2_plane_vaddr(&buf->vb, 0);
538 + buf->buffer_size = vb2_plane_size(&buf->vb, 0);
539 +
540 + ret = vchiq_mmal_submit_buffer(dev->instance, dev->capture.port, buf);
541 + if (ret < 0)
542 + v4l2_err(&dev->v4l2_dev, "%s: error submitting buffer\n",
543 + __func__);
544 +}
545 +
546 +static int start_streaming(struct vb2_queue *vq, unsigned int count)
547 +{
548 + struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vq);
549 + int ret;
550 + int parameter_size;
551 +
552 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "%s: dev:%p\n",
553 + __func__, dev);
554 +
555 + /* ensure a format has actually been set */
556 + if (dev->capture.port == NULL)
557 + return -EINVAL;
558 +
559 + if (enable_camera(dev) < 0) {
560 + v4l2_err(&dev->v4l2_dev, "Failed to enable camera\n");
561 + return -EINVAL;
562 + }
563 +
564 + /*init_completion(&dev->capture.frame_cmplt); */
565 +
566 + /* enable frame capture */
567 + dev->capture.frame_count = 1;
568 +
569 + /* if the preview is not already running, wait for a few frames for AGC
570 + * to settle down.
571 + */
572 + if (!dev->component[MMAL_COMPONENT_PREVIEW]->enabled)
573 + msleep(300);
574 +
575 + /* enable the connection from camera to encoder (if applicable) */
576 + if (dev->capture.camera_port != dev->capture.port
577 + && dev->capture.camera_port) {
578 + ret = vchiq_mmal_port_enable(dev->instance,
579 + dev->capture.camera_port, NULL);
580 + if (ret) {
581 + v4l2_err(&dev->v4l2_dev,
582 + "Failed to enable encode tunnel - error %d\n",
583 + ret);
584 + return -1;
585 + }
586 + }
587 +
588 + /* Get VC timestamp at this point in time */
589 + parameter_size = sizeof(dev->capture.vc_start_timestamp);
590 + if (vchiq_mmal_port_parameter_get(dev->instance,
591 + dev->capture.camera_port,
592 + MMAL_PARAMETER_SYSTEM_TIME,
593 + &dev->capture.vc_start_timestamp,
594 + &parameter_size)) {
595 + v4l2_err(&dev->v4l2_dev,
596 + "Failed to get VC start time - update your VC f/w\n");
597 +
598 + /* Flag to indicate just to rely on kernel timestamps */
599 + dev->capture.vc_start_timestamp = -1;
600 + } else
601 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
602 + "Start time %lld size %d\n",
603 + dev->capture.vc_start_timestamp, parameter_size);
604 +
605 + v4l2_get_timestamp(&dev->capture.kernel_start_ts);
606 +
607 + /* enable the camera port */
608 + dev->capture.port->cb_ctx = dev;
609 + ret =
610 + vchiq_mmal_port_enable(dev->instance, dev->capture.port, buffer_cb);
611 + if (ret) {
612 + v4l2_err(&dev->v4l2_dev,
613 + "Failed to enable capture port - error %d\n", ret);
614 + return -1;
615 + }
616 +
617 + /* capture the first frame */
618 + vchiq_mmal_port_parameter_set(dev->instance,
619 + dev->capture.camera_port,
620 + MMAL_PARAMETER_CAPTURE,
621 + &dev->capture.frame_count,
622 + sizeof(dev->capture.frame_count));
623 + return 0;
624 +}
625 +
626 +/* abort streaming and wait for last buffer */
627 +static int stop_streaming(struct vb2_queue *vq)
628 +{
629 + int ret;
630 + struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vq);
631 +
632 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "%s: dev:%p\n",
633 + __func__, dev);
634 +
635 + init_completion(&dev->capture.frame_cmplt);
636 + dev->capture.frame_count = 0;
637 +
638 + /* ensure a format has actually been set */
639 + if (dev->capture.port == NULL)
640 + return -EINVAL;
641 +
642 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "stopping capturing\n");
643 +
644 + /* stop capturing frames */
645 + vchiq_mmal_port_parameter_set(dev->instance,
646 + dev->capture.camera_port,
647 + MMAL_PARAMETER_CAPTURE,
648 + &dev->capture.frame_count,
649 + sizeof(dev->capture.frame_count));
650 +
651 + /* wait for last frame to complete */
652 + ret = wait_for_completion_timeout(&dev->capture.frame_cmplt, HZ);
653 + if (ret <= 0)
654 + v4l2_err(&dev->v4l2_dev,
655 + "error %d waiting for frame completion\n", ret);
656 +
657 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
658 + "disabling connection\n");
659 +
660 + /* disable the connection from camera to encoder */
661 + ret = vchiq_mmal_port_disable(dev->instance, dev->capture.camera_port);
662 + if (!ret && dev->capture.camera_port != dev->capture.port) {
663 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
664 + "disabling port\n");
665 + ret = vchiq_mmal_port_disable(dev->instance, dev->capture.port);
666 + } else if (dev->capture.camera_port != dev->capture.port) {
667 + v4l2_err(&dev->v4l2_dev, "port_disable failed, error %d\n",
668 + ret);
669 + }
670 +
671 + if (disable_camera(dev) < 0) {
672 + v4l2_err(&dev->v4l2_dev, "Failed to disable camera");
673 + return -EINVAL;
674 + }
675 +
676 + return ret;
677 +}
678 +
679 +static void bm2835_mmal_lock(struct vb2_queue *vq)
680 +{
681 + struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vq);
682 + mutex_lock(&dev->mutex);
683 +}
684 +
685 +static void bm2835_mmal_unlock(struct vb2_queue *vq)
686 +{
687 + struct bm2835_mmal_dev *dev = vb2_get_drv_priv(vq);
688 + mutex_unlock(&dev->mutex);
689 +}
690 +
691 +static struct vb2_ops bm2835_mmal_video_qops = {
692 + .queue_setup = queue_setup,
693 + .buf_prepare = buffer_prepare,
694 + .buf_queue = buffer_queue,
695 + .start_streaming = start_streaming,
696 + .stop_streaming = stop_streaming,
697 + .wait_prepare = bm2835_mmal_unlock,
698 + .wait_finish = bm2835_mmal_lock,
699 +};
700 +
701 +/* ------------------------------------------------------------------
702 + IOCTL operations
703 + ------------------------------------------------------------------*/
704 +
705 +/* overlay ioctl */
706 +static int vidioc_enum_fmt_vid_overlay(struct file *file, void *priv,
707 + struct v4l2_fmtdesc *f)
708 +{
709 + struct mmal_fmt *fmt;
710 +
711 + if (f->index >= ARRAY_SIZE(formats))
712 + return -EINVAL;
713 +
714 + fmt = &formats[f->index];
715 +
716 + strlcpy(f->description, fmt->name, sizeof(f->description));
717 + f->pixelformat = fmt->fourcc;
718 +
719 + return 0;
720 +}
721 +
722 +static int vidioc_g_fmt_vid_overlay(struct file *file, void *priv,
723 + struct v4l2_format *f)
724 +{
725 + struct bm2835_mmal_dev *dev = video_drvdata(file);
726 +
727 + f->fmt.win = dev->overlay;
728 +
729 + return 0;
730 +}
731 +
732 +static int vidioc_try_fmt_vid_overlay(struct file *file, void *priv,
733 + struct v4l2_format *f)
734 +{
735 + /* Only support one format so get the current one. */
736 + vidioc_g_fmt_vid_overlay(file, priv, f);
737 +
738 + /* todo: allow the size and/or offset to be changed. */
739 + return 0;
740 +}
741 +
742 +static int vidioc_s_fmt_vid_overlay(struct file *file, void *priv,
743 + struct v4l2_format *f)
744 +{
745 + struct bm2835_mmal_dev *dev = video_drvdata(file);
746 +
747 + vidioc_try_fmt_vid_overlay(file, priv, f);
748 +
749 + dev->overlay = f->fmt.win;
750 +
751 + /* todo: program the preview port parameters */
752 + return 0;
753 +}
754 +
755 +static int vidioc_overlay(struct file *file, void *f, unsigned int on)
756 +{
757 + int ret;
758 + struct bm2835_mmal_dev *dev = video_drvdata(file);
759 + struct vchiq_mmal_port *src;
760 + struct vchiq_mmal_port *dst;
761 + struct mmal_parameter_displayregion prev_config = {
762 + .set = MMAL_DISPLAY_SET_LAYER | MMAL_DISPLAY_SET_ALPHA |
763 + MMAL_DISPLAY_SET_DEST_RECT | MMAL_DISPLAY_SET_FULLSCREEN,
764 + .layer = PREVIEW_LAYER,
765 + .alpha = 255,
766 + .fullscreen = 0,
767 + .dest_rect = {
768 + .x = dev->overlay.w.left,
769 + .y = dev->overlay.w.top,
770 + .width = dev->overlay.w.width,
771 + .height = dev->overlay.w.height,
772 + },
773 + };
774 +
775 + if ((on && dev->component[MMAL_COMPONENT_PREVIEW]->enabled) ||
776 + (!on && !dev->component[MMAL_COMPONENT_PREVIEW]->enabled))
777 + return 0; /* already in requested state */
778 +
779 + src =
780 + &dev->component[MMAL_COMPONENT_CAMERA]->
781 + output[MMAL_CAMERA_PORT_PREVIEW];
782 +
783 + if (!on) {
784 + /* disconnect preview ports and disable component */
785 + ret = vchiq_mmal_port_disable(dev->instance, src);
786 + if (!ret)
787 + ret =
788 + vchiq_mmal_port_connect_tunnel(dev->instance, src,
789 + NULL);
790 + if (ret >= 0)
791 + ret = vchiq_mmal_component_disable(
792 + dev->instance,
793 + dev->component[MMAL_COMPONENT_PREVIEW]);
794 +
795 + disable_camera(dev);
796 + return ret;
797 + }
798 +
799 + /* set preview port format and connect it to output */
800 + dst = &dev->component[MMAL_COMPONENT_PREVIEW]->input[0];
801 +
802 + ret = vchiq_mmal_port_set_format(dev->instance, src);
803 + if (ret < 0)
804 + goto error;
805 +
806 + ret = vchiq_mmal_port_parameter_set(dev->instance, dst,
807 + MMAL_PARAMETER_DISPLAYREGION,
808 + &prev_config, sizeof(prev_config));
809 + if (ret < 0)
810 + goto error;
811 +
812 + if (enable_camera(dev) < 0)
813 + goto error;
814 +
815 + ret = vchiq_mmal_component_enable(
816 + dev->instance,
817 + dev->component[MMAL_COMPONENT_PREVIEW]);
818 + if (ret < 0)
819 + goto error;
820 +
821 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, "connecting %p to %p\n",
822 + src, dst);
823 + ret = vchiq_mmal_port_connect_tunnel(dev->instance, src, dst);
824 + if (!ret)
825 + ret = vchiq_mmal_port_enable(dev->instance, src, NULL);
826 +error:
827 + return ret;
828 +}
829 +
830 +static int vidioc_g_fbuf(struct file *file, void *fh,
831 + struct v4l2_framebuffer *a)
832 +{
833 + /* The video overlay must stay within the framebuffer and can't be
834 + positioned independently. */
835 + a->flags = V4L2_FBUF_FLAG_OVERLAY;
836 +
837 + /* todo: v4l2_framebuffer still needs more info filling in
838 + * in order to pass the v4l2-compliance test. */
839 +
840 + return 0;
841 +}
842 +
843 +/* input ioctls */
844 +static int vidioc_enum_input(struct file *file, void *priv,
845 + struct v4l2_input *inp)
846 +{
847 + /* only a single camera input */
848 + if (inp->index != 0)
849 + return -EINVAL;
850 +
851 + inp->type = V4L2_INPUT_TYPE_CAMERA;
852 + sprintf(inp->name, "Camera %u", inp->index);
853 + return 0;
854 +}
855 +
856 +static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
857 +{
858 + *i = 0;
859 + return 0;
860 +}
861 +
862 +static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
863 +{
864 + if (i != 0)
865 + return -EINVAL;
866 +
867 + return 0;
868 +}
869 +
870 +/* capture ioctls */
871 +static int vidioc_querycap(struct file *file, void *priv,
872 + struct v4l2_capability *cap)
873 +{
874 + struct bm2835_mmal_dev *dev = video_drvdata(file);
875 + u32 major;
876 + u32 minor;
877 +
878 + vchiq_mmal_version(dev->instance, &major, &minor);
879 +
880 + strcpy(cap->driver, "bm2835 mmal");
881 + snprintf(cap->card, sizeof(cap->card), "mmal service %d.%d",
882 + major, minor);
883 +
884 + snprintf(cap->bus_info, sizeof(cap->bus_info),
885 + "platform:%s", dev->v4l2_dev.name);
886 + cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY |
887 + V4L2_CAP_STREAMING | V4L2_CAP_READWRITE;
888 + cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
889 +
890 + return 0;
891 +}
892 +
893 +static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
894 + struct v4l2_fmtdesc *f)
895 +{
896 + struct mmal_fmt *fmt;
897 +
898 + if (f->index >= ARRAY_SIZE(formats))
899 + return -EINVAL;
900 +
901 + fmt = &formats[f->index];
902 +
903 + strlcpy(f->description, fmt->name, sizeof(f->description));
904 + f->pixelformat = fmt->fourcc;
905 + return 0;
906 +}
907 +
908 +static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
909 + struct v4l2_format *f)
910 +{
911 + struct bm2835_mmal_dev *dev = video_drvdata(file);
912 +
913 + f->fmt.pix.width = dev->capture.width;
914 + f->fmt.pix.height = dev->capture.height;
915 + f->fmt.pix.field = V4L2_FIELD_NONE;
916 + f->fmt.pix.pixelformat = dev->capture.fmt->fourcc;
917 + f->fmt.pix.bytesperline =
918 + (f->fmt.pix.width * dev->capture.fmt->depth) >> 3;
919 + f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
920 + if (dev->capture.fmt->fourcc == V4L2_PIX_FMT_JPEG
921 + && f->fmt.pix.sizeimage < (100 << 10)) {
922 + /* Need a minimum size for JPEG to account for EXIF. */
923 + f->fmt.pix.sizeimage = (100 << 10);
924 + }
925 +
926 + if (dev->capture.fmt->fourcc == V4L2_PIX_FMT_YUYV ||
927 + dev->capture.fmt->fourcc == V4L2_PIX_FMT_UYVY)
928 + f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
929 + else
930 + f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
931 + f->fmt.pix.priv = 0;
932 +
933 + v4l2_dump_pix_format(1, bcm2835_v4l2_debug, &dev->v4l2_dev, &f->fmt.pix,
934 + __func__);
935 + return 0;
936 +}
937 +
938 +static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
939 + struct v4l2_format *f)
940 +{
941 + struct bm2835_mmal_dev *dev = video_drvdata(file);
942 + struct mmal_fmt *mfmt;
943 +
944 + mfmt = get_format(f);
945 + if (!mfmt) {
946 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
947 + "Fourcc format (0x%08x) unknown.\n",
948 + f->fmt.pix.pixelformat);
949 + f->fmt.pix.pixelformat = formats[0].fourcc;
950 + mfmt = get_format(f);
951 + }
952 +
953 + f->fmt.pix.field = V4L2_FIELD_NONE;
954 + /* image must be a multiple of 32 pixels wide and 16 lines high */
955 + v4l_bound_align_image(&f->fmt.pix.width, 48, MAX_WIDTH, 5,
956 + &f->fmt.pix.height, 32, MAX_HEIGHT, 4, 0);
957 + f->fmt.pix.bytesperline = (f->fmt.pix.width * mfmt->depth) >> 3;
958 + f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
959 + if (f->fmt.pix.sizeimage < MIN_BUFFER_SIZE)
960 + f->fmt.pix.sizeimage = MIN_BUFFER_SIZE;
961 +
962 + if (mfmt->fourcc == V4L2_PIX_FMT_YUYV ||
963 + mfmt->fourcc == V4L2_PIX_FMT_UYVY)
964 + f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
965 + else
966 + f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
967 + f->fmt.pix.priv = 0;
968 +
969 + v4l2_dump_pix_format(1, bcm2835_v4l2_debug, &dev->v4l2_dev, &f->fmt.pix,
970 + __func__);
971 + return 0;
972 +}
973 +
974 +static int mmal_setup_components(struct bm2835_mmal_dev *dev,
975 + struct v4l2_format *f)
976 +{
977 + int ret;
978 + struct vchiq_mmal_port *port = NULL, *camera_port = NULL;
979 + struct vchiq_mmal_component *encode_component = NULL;
980 + struct mmal_fmt *mfmt = get_format(f);
981 +
982 + BUG_ON(!mfmt);
983 +
984 + if (dev->capture.encode_component) {
985 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
986 + "vid_cap - disconnect previous tunnel\n");
987 +
988 + /* Disconnect any previous connection */
989 + vchiq_mmal_port_connect_tunnel(dev->instance,
990 + dev->capture.camera_port, NULL);
991 + dev->capture.camera_port = NULL;
992 + ret = vchiq_mmal_component_disable(dev->instance,
993 + dev->capture.
994 + encode_component);
995 + if (ret)
996 + v4l2_err(&dev->v4l2_dev,
997 + "Failed to disable encode component %d\n",
998 + ret);
999 +
1000 + dev->capture.encode_component = NULL;
1001 + }
1002 + /* format dependant port setup */
1003 + switch (mfmt->mmal_component) {
1004 + case MMAL_COMPONENT_CAMERA:
1005 + /* Make a further decision on port based on resolution */
1006 + if (f->fmt.pix.width <= MAX_VIDEO_MODE_WIDTH
1007 + && f->fmt.pix.height <= MAX_VIDEO_MODE_HEIGHT)
1008 + camera_port = port =
1009 + &dev->component[MMAL_COMPONENT_CAMERA]->
1010 + output[MMAL_CAMERA_PORT_VIDEO];
1011 + else
1012 + camera_port = port =
1013 + &dev->component[MMAL_COMPONENT_CAMERA]->
1014 + output[MMAL_CAMERA_PORT_CAPTURE];
1015 + break;
1016 + case MMAL_COMPONENT_IMAGE_ENCODE:
1017 + encode_component = dev->component[MMAL_COMPONENT_IMAGE_ENCODE];
1018 + port = &dev->component[MMAL_COMPONENT_IMAGE_ENCODE]->output[0];
1019 + camera_port =
1020 + &dev->component[MMAL_COMPONENT_CAMERA]->
1021 + output[MMAL_CAMERA_PORT_CAPTURE];
1022 + break;
1023 + case MMAL_COMPONENT_VIDEO_ENCODE:
1024 + encode_component = dev->component[MMAL_COMPONENT_VIDEO_ENCODE];
1025 + port = &dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->output[0];
1026 + camera_port =
1027 + &dev->component[MMAL_COMPONENT_CAMERA]->
1028 + output[MMAL_CAMERA_PORT_VIDEO];
1029 + break;
1030 + default:
1031 + break;
1032 + }
1033 +
1034 + if (!port)
1035 + return -EINVAL;
1036 +
1037 + if (encode_component)
1038 + camera_port->format.encoding = MMAL_ENCODING_OPAQUE;
1039 + else
1040 + camera_port->format.encoding = mfmt->mmal;
1041 +
1042 + camera_port->format.encoding_variant = 0;
1043 + camera_port->es.video.width = f->fmt.pix.width;
1044 + camera_port->es.video.height = f->fmt.pix.height;
1045 + camera_port->es.video.crop.x = 0;
1046 + camera_port->es.video.crop.y = 0;
1047 + camera_port->es.video.crop.width = f->fmt.pix.width;
1048 + camera_port->es.video.crop.height = f->fmt.pix.height;
1049 + camera_port->es.video.frame_rate.num = 30;
1050 + camera_port->es.video.frame_rate.den = 1;
1051 +
1052 + ret = vchiq_mmal_port_set_format(dev->instance, camera_port);
1053 +
1054 + if (!ret
1055 + && camera_port ==
1056 + &dev->component[MMAL_COMPONENT_CAMERA]->
1057 + output[MMAL_CAMERA_PORT_VIDEO]) {
1058 + bool overlay_enabled =
1059 + !!dev->component[MMAL_COMPONENT_PREVIEW]->enabled;
1060 + struct vchiq_mmal_port *preview_port =
1061 + &dev->component[MMAL_COMPONENT_CAMERA]->
1062 + output[MMAL_CAMERA_PORT_PREVIEW];
1063 + /* Preview and encode ports need to match on resolution */
1064 + if (overlay_enabled) {
1065 + /* Need to disable the overlay before we can update
1066 + * the resolution
1067 + */
1068 + ret =
1069 + vchiq_mmal_port_disable(dev->instance,
1070 + preview_port);
1071 + if (!ret)
1072 + ret =
1073 + vchiq_mmal_port_connect_tunnel(
1074 + dev->instance,
1075 + preview_port,
1076 + NULL);
1077 + }
1078 + preview_port->es.video.width = f->fmt.pix.width;
1079 + preview_port->es.video.height = f->fmt.pix.height;
1080 + preview_port->es.video.crop.x = 0;
1081 + preview_port->es.video.crop.y = 0;
1082 + preview_port->es.video.crop.width = f->fmt.pix.width;
1083 + preview_port->es.video.crop.height = f->fmt.pix.height;
1084 + preview_port->es.video.frame_rate.num = 30;
1085 + preview_port->es.video.frame_rate.den = 1;
1086 + ret = vchiq_mmal_port_set_format(dev->instance, preview_port);
1087 + if (overlay_enabled) {
1088 + ret = vchiq_mmal_port_connect_tunnel(
1089 + dev->instance,
1090 + preview_port,
1091 + &dev->component[MMAL_COMPONENT_PREVIEW]->input[0]);
1092 + if (!ret)
1093 + ret = vchiq_mmal_port_enable(dev->instance,
1094 + preview_port,
1095 + NULL);
1096 + }
1097 + }
1098 +
1099 + if (ret) {
1100 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
1101 + "%s failed to set format\n", __func__);
1102 + /* ensure capture is not going to be tried */
1103 + dev->capture.port = NULL;
1104 + } else {
1105 + if (encode_component) {
1106 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
1107 + "vid_cap - set up encode comp\n");
1108 +
1109 + /* configure buffering */
1110 + camera_port->current_buffer.size =
1111 + camera_port->recommended_buffer.size;
1112 + camera_port->current_buffer.num =
1113 + camera_port->recommended_buffer.num;
1114 +
1115 + port->format.encoding = mfmt->mmal;
1116 + port->format.encoding_variant = 0;
1117 + /* Set any encoding specific parameters */
1118 + switch (mfmt->mmal_component) {
1119 + case MMAL_COMPONENT_VIDEO_ENCODE:
1120 + port->format.bitrate =
1121 + dev->capture.encode_bitrate;
1122 + break;
1123 + case MMAL_COMPONENT_IMAGE_ENCODE:
1124 + /* Could set EXIF parameters here */
1125 + break;
1126 + default:
1127 + break;
1128 + }
1129 + ret = vchiq_mmal_port_set_format(dev->instance, port);
1130 +
1131 + if (ret) {
1132 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
1133 + "%s failed to set format\n", __func__);
1134 + } else {
1135 + ret = vchiq_mmal_component_enable(
1136 + dev->instance,
1137 + encode_component);
1138 + if (ret) {
1139 + v4l2_dbg(1, bcm2835_v4l2_debug,
1140 + &dev->v4l2_dev,
1141 + "%s Failed to enable encode components\n",
1142 + __func__);
1143 + } else {
1144 + /* configure buffering */
1145 + port->current_buffer.num = 1;
1146 + port->current_buffer.size =
1147 + f->fmt.pix.sizeimage;
1148 + if (port->format.encoding ==
1149 + MMAL_ENCODING_JPEG) {
1150 + v4l2_dbg(1, bcm2835_v4l2_debug,
1151 + &dev->v4l2_dev,
1152 + "JPEG - fiddle buffer size\n");
1153 + port->current_buffer.size =
1154 + (f->fmt.pix.sizeimage <
1155 + (100 << 10))
1156 + ? (100 << 10) : f->fmt.pix.
1157 + sizeimage;
1158 + }
1159 + v4l2_dbg(1, bcm2835_v4l2_debug,
1160 + &dev->v4l2_dev,
1161 + "vid_cap - current_buffer.size being set to %d\n",
1162 + f->fmt.pix.sizeimage);
1163 + port->current_buffer.alignment = 0;
1164 + ret =
1165 + vchiq_mmal_port_connect_tunnel(
1166 + dev->instance,
1167 + camera_port,
1168 + &encode_component->input[0]);
1169 + if (ret) {
1170 + v4l2_dbg(1, bcm2835_v4l2_debug,
1171 + &dev->v4l2_dev,
1172 + "%s failed to create connection\n",
1173 + __func__);
1174 + /* ensure capture is not going to be tried */
1175 + dev->capture.port = NULL;
1176 + }
1177 + }
1178 + }
1179 + } else {
1180 + /* configure buffering */
1181 + camera_port->current_buffer.num = 1;
1182 + camera_port->current_buffer.size = f->fmt.pix.sizeimage;
1183 + camera_port->current_buffer.alignment = 0;
1184 + }
1185 +
1186 + if (!ret) {
1187 + dev->capture.fmt = mfmt;
1188 + dev->capture.stride = f->fmt.pix.bytesperline;
1189 + dev->capture.width = port->es.video.crop.width;
1190 + dev->capture.height = port->es.video.crop.height;
1191 +
1192 + /* select port for capture */
1193 + dev->capture.port = port;
1194 + dev->capture.camera_port = camera_port;
1195 + dev->capture.encode_component = encode_component;
1196 + }
1197 + }
1198 +
1199 + /* todo: Need to convert the vchiq/mmal error into a v4l2 error. */
1200 + return ret;
1201 +}
1202 +
1203 +static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1204 + struct v4l2_format *f)
1205 +{
1206 + int ret;
1207 + struct bm2835_mmal_dev *dev = video_drvdata(file);
1208 + struct mmal_fmt *mfmt;
1209 +
1210 + /* try the format to set valid parameters */
1211 + ret = vidioc_try_fmt_vid_cap(file, priv, f);
1212 + if (ret) {
1213 + v4l2_err(&dev->v4l2_dev,
1214 + "vid_cap - vidioc_try_fmt_vid_cap failed\n");
1215 + return ret;
1216 + }
1217 +
1218 + /* if a capture is running refuse to set format */
1219 + if (vb2_is_busy(&dev->capture.vb_vidq)) {
1220 + v4l2_info(&dev->v4l2_dev, "%s device busy\n", __func__);
1221 + return -EBUSY;
1222 + }
1223 +
1224 + /* If the format is unsupported v4l2 says we should switch to
1225 + * a supported one and not return an error. */
1226 + mfmt = get_format(f);
1227 + if (!mfmt) {
1228 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
1229 + "Fourcc format (0x%08x) unknown.\n",
1230 + f->fmt.pix.pixelformat);
1231 + f->fmt.pix.pixelformat = formats[0].fourcc;
1232 + mfmt = get_format(f);
1233 + }
1234 +
1235 + ret = mmal_setup_components(dev, f);
1236 + if (ret != 0)
1237 + v4l2_err(&dev->v4l2_dev,
1238 + "%s: failed to setup mmal components: %d\n",
1239 + __func__, ret);
1240 +
1241 + return ret;
1242 +}
1243 +
1244 +static const struct v4l2_ioctl_ops camera0_ioctl_ops = {
1245 + /* overlay */
1246 + .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_overlay,
1247 + .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_vid_overlay,
1248 + .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_vid_overlay,
1249 + .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_vid_overlay,
1250 + .vidioc_overlay = vidioc_overlay,
1251 + .vidioc_g_fbuf = vidioc_g_fbuf,
1252 +
1253 + /* inputs */
1254 + .vidioc_enum_input = vidioc_enum_input,
1255 + .vidioc_g_input = vidioc_g_input,
1256 + .vidioc_s_input = vidioc_s_input,
1257 +
1258 + /* capture */
1259 + .vidioc_querycap = vidioc_querycap,
1260 + .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1261 + .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1262 + .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1263 + .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1264 +
1265 + /* buffer management */
1266 + .vidioc_reqbufs = vb2_ioctl_reqbufs,
1267 + .vidioc_create_bufs = vb2_ioctl_create_bufs,
1268 + .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
1269 + .vidioc_querybuf = vb2_ioctl_querybuf,
1270 + .vidioc_qbuf = vb2_ioctl_qbuf,
1271 + .vidioc_dqbuf = vb2_ioctl_dqbuf,
1272 + .vidioc_streamon = vb2_ioctl_streamon,
1273 + .vidioc_streamoff = vb2_ioctl_streamoff,
1274 +
1275 + .vidioc_log_status = v4l2_ctrl_log_status,
1276 + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1277 + .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1278 +};
1279 +
1280 +/* ------------------------------------------------------------------
1281 + Driver init/finalise
1282 + ------------------------------------------------------------------*/
1283 +
1284 +static const struct v4l2_file_operations camera0_fops = {
1285 + .owner = THIS_MODULE,
1286 + .open = v4l2_fh_open,
1287 + .release = vb2_fop_release,
1288 + .read = vb2_fop_read,
1289 + .poll = vb2_fop_poll,
1290 + .unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */
1291 + .mmap = vb2_fop_mmap,
1292 +};
1293 +
1294 +static struct video_device vdev_template = {
1295 + .name = "camera0",
1296 + .fops = &camera0_fops,
1297 + .ioctl_ops = &camera0_ioctl_ops,
1298 + .release = video_device_release_empty,
1299 +};
1300 +
1301 +static int set_camera_parameters(struct vchiq_mmal_instance *instance,
1302 + struct vchiq_mmal_component *camera)
1303 +{
1304 + int ret;
1305 + struct mmal_parameter_camera_config cam_config = {
1306 + .max_stills_w = MAX_WIDTH,
1307 + .max_stills_h = MAX_HEIGHT,
1308 + .stills_yuv422 = 1,
1309 + .one_shot_stills = 1,
1310 + .max_preview_video_w = 1920,
1311 + .max_preview_video_h = 1088,
1312 + .num_preview_video_frames = 3,
1313 + .stills_capture_circular_buffer_height = 0,
1314 + .fast_preview_resume = 0,
1315 + .use_stc_timestamp = MMAL_PARAM_TIMESTAMP_MODE_RAW_STC
1316 + };
1317 +
1318 + ret = vchiq_mmal_port_parameter_set(instance, &camera->control,
1319 + MMAL_PARAMETER_CAMERA_CONFIG,
1320 + &cam_config, sizeof(cam_config));
1321 + return ret;
1322 +}
1323 +
1324 +/* MMAL instance and component init */
1325 +static int __init mmal_init(struct bm2835_mmal_dev *dev)
1326 +{
1327 + int ret;
1328 + struct mmal_es_format *format;
1329 +
1330 + ret = vchiq_mmal_init(&dev->instance);
1331 + if (ret < 0)
1332 + return ret;
1333 +
1334 + /* get the camera component ready */
1335 + ret = vchiq_mmal_component_init(dev->instance, "ril.camera",
1336 + &dev->component[MMAL_COMPONENT_CAMERA]);
1337 + if (ret < 0)
1338 + goto unreg_mmal;
1339 +
1340 + if (dev->component[MMAL_COMPONENT_CAMERA]->outputs <
1341 + MMAL_CAMERA_PORT_COUNT) {
1342 + ret = -EINVAL;
1343 + goto unreg_camera;
1344 + }
1345 +
1346 + ret = set_camera_parameters(dev->instance,
1347 + dev->component[MMAL_COMPONENT_CAMERA]);
1348 + if (ret < 0)
1349 + goto unreg_camera;
1350 +
1351 + format =
1352 + &dev->component[MMAL_COMPONENT_CAMERA]->
1353 + output[MMAL_CAMERA_PORT_PREVIEW].format;
1354 +
1355 + format->encoding = MMAL_ENCODING_OPAQUE;
1356 + format->encoding_variant = MMAL_ENCODING_I420;
1357 +
1358 + format->es->video.width = 1024;
1359 + format->es->video.height = 768;
1360 + format->es->video.crop.x = 0;
1361 + format->es->video.crop.y = 0;
1362 + format->es->video.crop.width = 1024;
1363 + format->es->video.crop.height = 768;
1364 + format->es->video.frame_rate.num = PREVIEW_FRAME_RATE_NUM;
1365 + format->es->video.frame_rate.den = PREVIEW_FRAME_RATE_DEN;
1366 +
1367 + format =
1368 + &dev->component[MMAL_COMPONENT_CAMERA]->
1369 + output[MMAL_CAMERA_PORT_VIDEO].format;
1370 +
1371 + format->encoding = MMAL_ENCODING_OPAQUE;
1372 + format->encoding_variant = MMAL_ENCODING_I420;
1373 +
1374 + format->es->video.width = 1024;
1375 + format->es->video.height = 768;
1376 + format->es->video.crop.x = 0;
1377 + format->es->video.crop.y = 0;
1378 + format->es->video.crop.width = 1024;
1379 + format->es->video.crop.height = 768;
1380 + format->es->video.frame_rate.num = PREVIEW_FRAME_RATE_NUM;
1381 + format->es->video.frame_rate.den = PREVIEW_FRAME_RATE_DEN;
1382 +
1383 + format =
1384 + &dev->component[MMAL_COMPONENT_CAMERA]->
1385 + output[MMAL_CAMERA_PORT_CAPTURE].format;
1386 +
1387 + format->encoding = MMAL_ENCODING_OPAQUE;
1388 +
1389 + format->es->video.width = 2592;
1390 + format->es->video.height = 1944;
1391 + format->es->video.crop.x = 0;
1392 + format->es->video.crop.y = 0;
1393 + format->es->video.crop.width = 2592;
1394 + format->es->video.crop.height = 1944;
1395 + format->es->video.frame_rate.num = 30;
1396 + format->es->video.frame_rate.den = 1;
1397 +
1398 + dev->capture.width = format->es->video.width;
1399 + dev->capture.height = format->es->video.height;
1400 + dev->capture.fmt = &formats[0];
1401 + dev->capture.encode_component = NULL;
1402 +
1403 + /* get the preview component ready */
1404 + ret = vchiq_mmal_component_init(
1405 + dev->instance, "ril.video_render",
1406 + &dev->component[MMAL_COMPONENT_PREVIEW]);
1407 + if (ret < 0)
1408 + goto unreg_camera;
1409 +
1410 + if (dev->component[MMAL_COMPONENT_PREVIEW]->inputs < 1) {
1411 + ret = -EINVAL;
1412 + pr_debug("too few input ports %d needed %d\n",
1413 + dev->component[MMAL_COMPONENT_PREVIEW]->inputs, 1);
1414 + goto unreg_preview;
1415 + }
1416 +
1417 + /* get the image encoder component ready */
1418 + ret = vchiq_mmal_component_init(
1419 + dev->instance, "ril.image_encode",
1420 + &dev->component[MMAL_COMPONENT_IMAGE_ENCODE]);
1421 + if (ret < 0)
1422 + goto unreg_preview;
1423 +
1424 + if (dev->component[MMAL_COMPONENT_IMAGE_ENCODE]->inputs < 1) {
1425 + ret = -EINVAL;
1426 + v4l2_err(&dev->v4l2_dev, "too few input ports %d needed %d\n",
1427 + dev->component[MMAL_COMPONENT_IMAGE_ENCODE]->inputs,
1428 + 1);
1429 + goto unreg_image_encoder;
1430 + }
1431 +
1432 + /* get the video encoder component ready */
1433 + ret = vchiq_mmal_component_init(dev->instance, "ril.video_encode",
1434 + &dev->
1435 + component[MMAL_COMPONENT_VIDEO_ENCODE]);
1436 + if (ret < 0)
1437 + goto unreg_image_encoder;
1438 +
1439 + if (dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->inputs < 1) {
1440 + ret = -EINVAL;
1441 + v4l2_err(&dev->v4l2_dev, "too few input ports %d needed %d\n",
1442 + dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->inputs,
1443 + 1);
1444 + goto unreg_vid_encoder;
1445 + }
1446 +
1447 + {
1448 + unsigned int enable = 1;
1449 + vchiq_mmal_port_parameter_set(
1450 + dev->instance,
1451 + &dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->control,
1452 + MMAL_PARAMETER_VIDEO_IMMUTABLE_INPUT,
1453 + &enable, sizeof(enable));
1454 +
1455 + vchiq_mmal_port_parameter_set(dev->instance,
1456 + &dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->control,
1457 + MMAL_PARAMETER_MINIMISE_FRAGMENTATION,
1458 + &enable,
1459 + sizeof(enable));
1460 + }
1461 + ret = bm2835_mmal_set_all_camera_controls(dev);
1462 + if (ret < 0)
1463 + goto unreg_vid_encoder;
1464 +
1465 + return 0;
1466 +
1467 +unreg_vid_encoder:
1468 + pr_err("Cleanup: Destroy video encoder\n");
1469 + vchiq_mmal_component_finalise(
1470 + dev->instance,
1471 + dev->component[MMAL_COMPONENT_VIDEO_ENCODE]);
1472 +
1473 +unreg_image_encoder:
1474 + pr_err("Cleanup: Destroy image encoder\n");
1475 + vchiq_mmal_component_finalise(
1476 + dev->instance,
1477 + dev->component[MMAL_COMPONENT_IMAGE_ENCODE]);
1478 +
1479 +unreg_preview:
1480 + pr_err("Cleanup: Destroy video render\n");
1481 + vchiq_mmal_component_finalise(dev->instance,
1482 + dev->component[MMAL_COMPONENT_PREVIEW]);
1483 +
1484 +unreg_camera:
1485 + pr_err("Cleanup: Destroy camera\n");
1486 + vchiq_mmal_component_finalise(dev->instance,
1487 + dev->component[MMAL_COMPONENT_CAMERA]);
1488 +
1489 +unreg_mmal:
1490 + vchiq_mmal_finalise(dev->instance);
1491 + return ret;
1492 +}
1493 +
1494 +static int __init bm2835_mmal_init_device(struct bm2835_mmal_dev *dev,
1495 + struct video_device *vfd)
1496 +{
1497 + int ret;
1498 +
1499 + *vfd = vdev_template;
1500 +
1501 + vfd->v4l2_dev = &dev->v4l2_dev;
1502 +
1503 + vfd->lock = &dev->mutex;
1504 +
1505 + vfd->queue = &dev->capture.vb_vidq;
1506 +
1507 + /* video device needs to be able to access instance data */
1508 + video_set_drvdata(vfd, dev);
1509 +
1510 + ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
1511 + if (ret < 0)
1512 + return ret;
1513 +
1514 + v4l2_info(vfd->v4l2_dev, "V4L2 device registered as %s\n",
1515 + video_device_node_name(vfd));
1516 +
1517 + return 0;
1518 +}
1519 +
1520 +static struct v4l2_format default_v4l2_format = {
1521 + .fmt.pix.pixelformat = V4L2_PIX_FMT_JPEG,
1522 + .fmt.pix.width = 1024,
1523 + .fmt.pix.bytesperline = 1024 * 3 / 2,
1524 + .fmt.pix.height = 768,
1525 + .fmt.pix.sizeimage = 1<<18,
1526 +};
1527 +
1528 +static int __init bm2835_mmal_init(void)
1529 +{
1530 + int ret;
1531 + struct bm2835_mmal_dev *dev;
1532 + struct vb2_queue *q;
1533 +
1534 + dev = kzalloc(sizeof(*gdev), GFP_KERNEL);
1535 + if (!dev)
1536 + return -ENOMEM;
1537 +
1538 + /* setup device defaults */
1539 + dev->overlay.w.left = 150;
1540 + dev->overlay.w.top = 50;
1541 + dev->overlay.w.width = 1024;
1542 + dev->overlay.w.height = 768;
1543 + dev->overlay.clipcount = 0;
1544 + dev->overlay.field = V4L2_FIELD_NONE;
1545 +
1546 + dev->capture.fmt = &formats[3]; /* JPEG */
1547 +
1548 + /* v4l device registration */
1549 + snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name),
1550 + "%s", BM2835_MMAL_MODULE_NAME);
1551 + ret = v4l2_device_register(NULL, &dev->v4l2_dev);
1552 + if (ret)
1553 + goto free_dev;
1554 +
1555 + /* setup v4l controls */
1556 + ret = bm2835_mmal_init_controls(dev, &dev->ctrl_handler);
1557 + if (ret < 0)
1558 + goto unreg_dev;
1559 + dev->v4l2_dev.ctrl_handler = &dev->ctrl_handler;
1560 +
1561 + /* mmal init */
1562 + ret = mmal_init(dev);
1563 + if (ret < 0)
1564 + goto unreg_dev;
1565 +
1566 + /* initialize queue */
1567 + q = &dev->capture.vb_vidq;
1568 + memset(q, 0, sizeof(*q));
1569 + q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1570 + q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
1571 + q->drv_priv = dev;
1572 + q->buf_struct_size = sizeof(struct mmal_buffer);
1573 + q->ops = &bm2835_mmal_video_qops;
1574 + q->mem_ops = &vb2_vmalloc_memops;
1575 + q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1576 + ret = vb2_queue_init(q);
1577 + if (ret < 0)
1578 + goto unreg_dev;
1579 +
1580 + /* v4l2 core mutex used to protect all fops and v4l2 ioctls. */
1581 + mutex_init(&dev->mutex);
1582 +
1583 + /* initialise video devices */
1584 + ret = bm2835_mmal_init_device(dev, &dev->vdev);
1585 + if (ret < 0)
1586 + goto unreg_dev;
1587 +
1588 + ret = mmal_setup_components(dev, &default_v4l2_format);
1589 + if (ret < 0) {
1590 + v4l2_err(&dev->v4l2_dev,
1591 + "%s: could not setup components\n", __func__);
1592 + goto unreg_dev;
1593 + }
1594 +
1595 + v4l2_info(&dev->v4l2_dev,
1596 + "Broadcom 2835 MMAL video capture ver %s loaded.\n",
1597 + BM2835_MMAL_VERSION);
1598 +
1599 + gdev = dev;
1600 + return 0;
1601 +
1602 +unreg_dev:
1603 + v4l2_ctrl_handler_free(&dev->ctrl_handler);
1604 + v4l2_device_unregister(&dev->v4l2_dev);
1605 +
1606 +free_dev:
1607 + kfree(dev);
1608 +
1609 + v4l2_err(&dev->v4l2_dev,
1610 + "%s: error %d while loading driver\n",
1611 + BM2835_MMAL_MODULE_NAME, ret);
1612 +
1613 + return ret;
1614 +}
1615 +
1616 +static void __exit bm2835_mmal_exit(void)
1617 +{
1618 + if (!gdev)
1619 + return;
1620 +
1621 + v4l2_info(&gdev->v4l2_dev, "unregistering %s\n",
1622 + video_device_node_name(&gdev->vdev));
1623 +
1624 + video_unregister_device(&gdev->vdev);
1625 +
1626 + if (gdev->capture.encode_component) {
1627 + v4l2_dbg(1, bcm2835_v4l2_debug, &gdev->v4l2_dev,
1628 + "mmal_exit - disconnect tunnel\n");
1629 + vchiq_mmal_port_connect_tunnel(gdev->instance,
1630 + gdev->capture.camera_port, NULL);
1631 + vchiq_mmal_component_disable(gdev->instance,
1632 + gdev->capture.encode_component);
1633 + }
1634 + vchiq_mmal_component_disable(gdev->instance,
1635 + gdev->component[MMAL_COMPONENT_CAMERA]);
1636 +
1637 + vchiq_mmal_component_finalise(gdev->instance,
1638 + gdev->
1639 + component[MMAL_COMPONENT_VIDEO_ENCODE]);
1640 +
1641 + vchiq_mmal_component_finalise(gdev->instance,
1642 + gdev->
1643 + component[MMAL_COMPONENT_IMAGE_ENCODE]);
1644 +
1645 + vchiq_mmal_component_finalise(gdev->instance,
1646 + gdev->component[MMAL_COMPONENT_PREVIEW]);
1647 +
1648 + vchiq_mmal_component_finalise(gdev->instance,
1649 + gdev->component[MMAL_COMPONENT_CAMERA]);
1650 +
1651 + vchiq_mmal_finalise(gdev->instance);
1652 +
1653 + v4l2_ctrl_handler_free(&gdev->ctrl_handler);
1654 +
1655 + v4l2_device_unregister(&gdev->v4l2_dev);
1656 +
1657 + kfree(gdev);
1658 +}
1659 +
1660 +module_init(bm2835_mmal_init);
1661 +module_exit(bm2835_mmal_exit);
1662 diff --git a/drivers/media/platform/bcm2835/bcm2835-camera.h b/drivers/media/platform/bcm2835/bcm2835-camera.h
1663 new file mode 100644
1664 index 0000000..883eab7
1665 --- /dev/null
1666 +++ b/drivers/media/platform/bcm2835/bcm2835-camera.h
1667 @@ -0,0 +1,113 @@
1668 +/*
1669 + * Broadcom BM2835 V4L2 driver
1670 + *
1671 + * Copyright © 2013 Raspberry Pi (Trading) Ltd.
1672 + *
1673 + * This file is subject to the terms and conditions of the GNU General Public
1674 + * License. See the file COPYING in the main directory of this archive
1675 + * for more details.
1676 + *
1677 + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk>
1678 + * Dave Stevenson <dsteve@broadcom.com>
1679 + * Simon Mellor <simellor@broadcom.com>
1680 + * Luke Diamand <luked@broadcom.com>
1681 + *
1682 + * core driver device
1683 + */
1684 +
1685 +#define V4L2_CTRL_COUNT 18 /* number of v4l controls */
1686 +
1687 +enum {
1688 + MMAL_COMPONENT_CAMERA = 0,
1689 + MMAL_COMPONENT_PREVIEW,
1690 + MMAL_COMPONENT_IMAGE_ENCODE,
1691 + MMAL_COMPONENT_VIDEO_ENCODE,
1692 + MMAL_COMPONENT_COUNT
1693 +};
1694 +
1695 +enum {
1696 + MMAL_CAMERA_PORT_PREVIEW = 0,
1697 + MMAL_CAMERA_PORT_VIDEO,
1698 + MMAL_CAMERA_PORT_CAPTURE,
1699 + MMAL_CAMERA_PORT_COUNT
1700 +};
1701 +
1702 +#define PREVIEW_FRAME_RATE_NUM 30
1703 +#define PREVIEW_FRAME_RATE_DEN 1
1704 +
1705 +#define PREVIEW_LAYER 2
1706 +
1707 +extern int bcm2835_v4l2_debug;
1708 +
1709 +struct bm2835_mmal_dev {
1710 + /* v4l2 devices */
1711 + struct v4l2_device v4l2_dev;
1712 + struct video_device vdev;
1713 + struct mutex mutex;
1714 +
1715 + /* controls */
1716 + struct v4l2_ctrl_handler ctrl_handler;
1717 + struct v4l2_ctrl *ctrls[V4L2_CTRL_COUNT];
1718 + struct mmal_colourfx colourfx;
1719 + int hflip;
1720 + int vflip;
1721 +
1722 + /* allocated mmal instance and components */
1723 + struct vchiq_mmal_instance *instance;
1724 + struct vchiq_mmal_component *component[MMAL_COMPONENT_COUNT];
1725 + int camera_use_count;
1726 +
1727 + struct v4l2_window overlay;
1728 +
1729 + struct {
1730 + unsigned int width; /* width */
1731 + unsigned int height; /* height */
1732 + unsigned int stride; /* stride */
1733 + struct mmal_fmt *fmt;
1734 +
1735 + /* H264 encode bitrate */
1736 + int encode_bitrate;
1737 + /* H264 bitrate mode. CBR/VBR */
1738 + int encode_bitrate_mode;
1739 + /* JPEG Q-factor */
1740 + int q_factor;
1741 +
1742 + struct vb2_queue vb_vidq;
1743 +
1744 + /* VC start timestamp for streaming */
1745 + s64 vc_start_timestamp;
1746 + /* Kernel start timestamp for streaming */
1747 + struct timeval kernel_start_ts;
1748 +
1749 + struct vchiq_mmal_port *port; /* port being used for capture */
1750 + /* camera port being used for capture */
1751 + struct vchiq_mmal_port *camera_port;
1752 + /* component being used for encode */
1753 + struct vchiq_mmal_component *encode_component;
1754 + /* number of frames remaining which driver should capture */
1755 + unsigned int frame_count;
1756 + /* last frame completion */
1757 + struct completion frame_cmplt;
1758 +
1759 + } capture;
1760 +
1761 +};
1762 +
1763 +int bm2835_mmal_init_controls(
1764 + struct bm2835_mmal_dev *dev,
1765 + struct v4l2_ctrl_handler *hdl);
1766 +
1767 +int bm2835_mmal_set_all_camera_controls(struct bm2835_mmal_dev *dev);
1768 +
1769 +
1770 +/* Debug helpers */
1771 +
1772 +#define v4l2_dump_pix_format(level, debug, dev, pix_fmt, desc) \
1773 +{ \
1774 + v4l2_dbg(level, debug, dev, \
1775 +"%s: w %u h %u field %u pfmt 0x%x bpl %u sz_img %u colorspace 0x%x priv %u\n", \
1776 + desc == NULL ? "" : desc, \
1777 + (pix_fmt)->width, (pix_fmt)->height, (pix_fmt)->field, \
1778 + (pix_fmt)->pixelformat, (pix_fmt)->bytesperline, \
1779 + (pix_fmt)->sizeimage, (pix_fmt)->colorspace, (pix_fmt)->priv); \
1780 +}
1781 diff --git a/drivers/media/platform/bcm2835/controls.c b/drivers/media/platform/bcm2835/controls.c
1782 new file mode 100644
1783 index 0000000..d1408e5
1784 --- /dev/null
1785 +++ b/drivers/media/platform/bcm2835/controls.c
1786 @@ -0,0 +1,725 @@
1787 +/*
1788 + * Broadcom BM2835 V4L2 driver
1789 + *
1790 + * Copyright © 2013 Raspberry Pi (Trading) Ltd.
1791 + *
1792 + * This file is subject to the terms and conditions of the GNU General Public
1793 + * License. See the file COPYING in the main directory of this archive
1794 + * for more details.
1795 + *
1796 + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk>
1797 + * Dave Stevenson <dsteve@broadcom.com>
1798 + * Simon Mellor <simellor@broadcom.com>
1799 + * Luke Diamand <luked@broadcom.com>
1800 + */
1801 +
1802 +#include <linux/errno.h>
1803 +#include <linux/kernel.h>
1804 +#include <linux/module.h>
1805 +#include <linux/slab.h>
1806 +#include <media/videobuf2-vmalloc.h>
1807 +#include <media/v4l2-device.h>
1808 +#include <media/v4l2-ioctl.h>
1809 +#include <media/v4l2-ctrls.h>
1810 +#include <media/v4l2-fh.h>
1811 +#include <media/v4l2-event.h>
1812 +#include <media/v4l2-common.h>
1813 +
1814 +#include "mmal-common.h"
1815 +#include "mmal-vchiq.h"
1816 +#include "mmal-parameters.h"
1817 +#include "bcm2835-camera.h"
1818 +
1819 +/* The supported V4L2_CID_AUTO_EXPOSURE_BIAS values are from -24 to +24.
1820 + * These are in 1/6th increments so the effective range is -4.0EV to +4.0EV.
1821 + */
1822 +static const s64 ev_bias_qmenu[] = {
1823 + -24, -21, -18, -15, -12, -9, -6, -3, 0, 3, 6, 9, 12, 15, 18, 21, 24
1824 +};
1825 +
1826 +/* Supported ISO values
1827 + * ISOO = auto ISO
1828 + */
1829 +static const s64 iso_qmenu[] = {
1830 + 0, 100, 200, 400, 800,
1831 +};
1832 +
1833 +/* Supported video encode modes */
1834 +static const s64 bitrate_mode_qmenu[] = {
1835 + (s64)V4L2_MPEG_VIDEO_BITRATE_MODE_VBR,
1836 + (s64)V4L2_MPEG_VIDEO_BITRATE_MODE_CBR,
1837 +};
1838 +
1839 +
1840 +enum bm2835_mmal_ctrl_type {
1841 + MMAL_CONTROL_TYPE_STD,
1842 + MMAL_CONTROL_TYPE_STD_MENU,
1843 + MMAL_CONTROL_TYPE_INT_MENU,
1844 + MMAL_CONTROL_TYPE_CLUSTER, /* special cluster entry */
1845 +};
1846 +
1847 +struct bm2835_mmal_v4l2_ctrl;
1848 +
1849 +typedef int(bm2835_mmal_v4l2_ctrl_cb)(
1850 + struct bm2835_mmal_dev *dev,
1851 + struct v4l2_ctrl *ctrl,
1852 + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl);
1853 +
1854 +struct bm2835_mmal_v4l2_ctrl {
1855 + u32 id; /* v4l2 control identifier */
1856 + enum bm2835_mmal_ctrl_type type;
1857 + /* control minimum value or
1858 + * mask for MMAL_CONTROL_TYPE_STD_MENU */
1859 + s32 min;
1860 + s32 max; /* maximum value of control */
1861 + s32 def; /* default value of control */
1862 + s32 step; /* step size of the control */
1863 + const s64 *imenu; /* integer menu array */
1864 + u32 mmal_id; /* mmal parameter id */
1865 + bm2835_mmal_v4l2_ctrl_cb *setter;
1866 +};
1867 +
1868 +struct v4l2_to_mmal_effects_setting {
1869 + u32 v4l2_effect;
1870 + u32 mmal_effect;
1871 + s32 col_fx_enable;
1872 + s32 col_fx_fixed_cbcr;
1873 + u32 u;
1874 + u32 v;
1875 + u32 num_effect_params;
1876 + u32 effect_params[MMAL_MAX_IMAGEFX_PARAMETERS];
1877 +};
1878 +
1879 +static const struct v4l2_to_mmal_effects_setting
1880 + v4l2_to_mmal_effects_values[] = {
1881 + { V4L2_COLORFX_NONE, MMAL_PARAM_IMAGEFX_NONE,
1882 + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} },
1883 + { V4L2_COLORFX_BW, MMAL_PARAM_IMAGEFX_NONE,
1884 + 1, 0, 128, 128, 0, {0, 0, 0, 0, 0} },
1885 + { V4L2_COLORFX_SEPIA, MMAL_PARAM_IMAGEFX_NONE,
1886 + 1, 0, 87, 151, 0, {0, 0, 0, 0, 0} },
1887 + { V4L2_COLORFX_NEGATIVE, MMAL_PARAM_IMAGEFX_NEGATIVE,
1888 + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} },
1889 + { V4L2_COLORFX_EMBOSS, MMAL_PARAM_IMAGEFX_EMBOSS,
1890 + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} },
1891 + { V4L2_COLORFX_SKETCH, MMAL_PARAM_IMAGEFX_SKETCH,
1892 + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} },
1893 + { V4L2_COLORFX_SKY_BLUE, MMAL_PARAM_IMAGEFX_PASTEL,
1894 + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} },
1895 + { V4L2_COLORFX_GRASS_GREEN, MMAL_PARAM_IMAGEFX_WATERCOLOUR,
1896 + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} },
1897 + { V4L2_COLORFX_SKIN_WHITEN, MMAL_PARAM_IMAGEFX_WASHEDOUT,
1898 + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} },
1899 + { V4L2_COLORFX_VIVID, MMAL_PARAM_IMAGEFX_SATURATION,
1900 + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} },
1901 + { V4L2_COLORFX_AQUA, MMAL_PARAM_IMAGEFX_NONE,
1902 + 1, 0, 171, 121, 0, {0, 0, 0, 0, 0} },
1903 + { V4L2_COLORFX_ART_FREEZE, MMAL_PARAM_IMAGEFX_HATCH,
1904 + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} },
1905 + { V4L2_COLORFX_SILHOUETTE, MMAL_PARAM_IMAGEFX_FILM,
1906 + 0, 0, 0, 0, 0, {0, 0, 0, 0, 0} },
1907 + { V4L2_COLORFX_SOLARIZATION, MMAL_PARAM_IMAGEFX_SOLARIZE,
1908 + 0, 0, 0, 0, 5, {1, 128, 160, 160, 48} },
1909 + { V4L2_COLORFX_ANTIQUE, MMAL_PARAM_IMAGEFX_COLOURBALANCE,
1910 + 0, 0, 0, 0, 3, {108, 274, 238, 0, 0} },
1911 + { V4L2_COLORFX_SET_CBCR, MMAL_PARAM_IMAGEFX_NONE,
1912 + 1, 1, 0, 0, 0, {0, 0, 0, 0, 0} }
1913 +};
1914 +
1915 +
1916 +/* control handlers*/
1917 +
1918 +static int ctrl_set_rational(struct bm2835_mmal_dev *dev,
1919 + struct v4l2_ctrl *ctrl,
1920 + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl)
1921 +{
1922 + struct {
1923 + s32 num; /**< Numerator */
1924 + s32 den; /**< Denominator */
1925 + } rational_value;
1926 + struct vchiq_mmal_port *control;
1927 +
1928 + control = &dev->component[MMAL_COMPONENT_CAMERA]->control;
1929 +
1930 + rational_value.num = ctrl->val;
1931 + rational_value.den = 100;
1932 +
1933 + return vchiq_mmal_port_parameter_set(dev->instance, control,
1934 + mmal_ctrl->mmal_id,
1935 + &rational_value,
1936 + sizeof(rational_value));
1937 +}
1938 +
1939 +static int ctrl_set_value(struct bm2835_mmal_dev *dev,
1940 + struct v4l2_ctrl *ctrl,
1941 + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl)
1942 +{
1943 + u32 u32_value;
1944 + struct vchiq_mmal_port *control;
1945 +
1946 + control = &dev->component[MMAL_COMPONENT_CAMERA]->control;
1947 +
1948 + u32_value = ctrl->val;
1949 +
1950 + return vchiq_mmal_port_parameter_set(dev->instance, control,
1951 + mmal_ctrl->mmal_id,
1952 + &u32_value, sizeof(u32_value));
1953 +}
1954 +
1955 +static int ctrl_set_rotate(struct bm2835_mmal_dev *dev,
1956 + struct v4l2_ctrl *ctrl,
1957 + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl)
1958 +{
1959 + int ret;
1960 + u32 u32_value;
1961 + struct vchiq_mmal_component *camera;
1962 +
1963 + camera = dev->component[MMAL_COMPONENT_CAMERA];
1964 +
1965 + u32_value = ((ctrl->val % 360) / 90) * 90;
1966 +
1967 + ret = vchiq_mmal_port_parameter_set(dev->instance, &camera->output[0],
1968 + mmal_ctrl->mmal_id,
1969 + &u32_value, sizeof(u32_value));
1970 + if (ret < 0)
1971 + return ret;
1972 +
1973 + ret = vchiq_mmal_port_parameter_set(dev->instance, &camera->output[1],
1974 + mmal_ctrl->mmal_id,
1975 + &u32_value, sizeof(u32_value));
1976 + if (ret < 0)
1977 + return ret;
1978 +
1979 + ret = vchiq_mmal_port_parameter_set(dev->instance, &camera->output[2],
1980 + mmal_ctrl->mmal_id,
1981 + &u32_value, sizeof(u32_value));
1982 +
1983 + return ret;
1984 +}
1985 +
1986 +static int ctrl_set_flip(struct bm2835_mmal_dev *dev,
1987 + struct v4l2_ctrl *ctrl,
1988 + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl)
1989 +{
1990 + int ret;
1991 + u32 u32_value;
1992 + struct vchiq_mmal_component *camera;
1993 +
1994 + if (ctrl->id == V4L2_CID_HFLIP)
1995 + dev->hflip = ctrl->val;
1996 + else
1997 + dev->vflip = ctrl->val;
1998 +
1999 + camera = dev->component[MMAL_COMPONENT_CAMERA];
2000 +
2001 + if (dev->hflip && dev->vflip)
2002 + u32_value = MMAL_PARAM_MIRROR_BOTH;
2003 + else if (dev->hflip)
2004 + u32_value = MMAL_PARAM_MIRROR_HORIZONTAL;
2005 + else if (dev->vflip)
2006 + u32_value = MMAL_PARAM_MIRROR_VERTICAL;
2007 + else
2008 + u32_value = MMAL_PARAM_MIRROR_NONE;
2009 +
2010 + ret = vchiq_mmal_port_parameter_set(dev->instance, &camera->output[0],
2011 + mmal_ctrl->mmal_id,
2012 + &u32_value, sizeof(u32_value));
2013 + if (ret < 0)
2014 + return ret;
2015 +
2016 + ret = vchiq_mmal_port_parameter_set(dev->instance, &camera->output[1],
2017 + mmal_ctrl->mmal_id,
2018 + &u32_value, sizeof(u32_value));
2019 + if (ret < 0)
2020 + return ret;
2021 +
2022 + ret = vchiq_mmal_port_parameter_set(dev->instance, &camera->output[2],
2023 + mmal_ctrl->mmal_id,
2024 + &u32_value, sizeof(u32_value));
2025 +
2026 + return ret;
2027 +
2028 +}
2029 +
2030 +static int ctrl_set_exposure(struct bm2835_mmal_dev *dev,
2031 + struct v4l2_ctrl *ctrl,
2032 + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl)
2033 +{
2034 + u32 u32_value;
2035 + struct vchiq_mmal_port *control;
2036 +
2037 + control = &dev->component[MMAL_COMPONENT_CAMERA]->control;
2038 +
2039 + switch (ctrl->val) {
2040 + case V4L2_EXPOSURE_AUTO:
2041 + u32_value = MMAL_PARAM_EXPOSUREMODE_AUTO;
2042 + break;
2043 +
2044 + case V4L2_EXPOSURE_MANUAL:
2045 + u32_value = MMAL_PARAM_EXPOSUREMODE_OFF;
2046 + break;
2047 +
2048 + case V4L2_EXPOSURE_SHUTTER_PRIORITY:
2049 + u32_value = MMAL_PARAM_EXPOSUREMODE_SPORTS;
2050 + break;
2051 +
2052 + case V4L2_EXPOSURE_APERTURE_PRIORITY:
2053 + u32_value = MMAL_PARAM_EXPOSUREMODE_NIGHT;
2054 + break;
2055 +
2056 + }
2057 +
2058 + /* todo: what about the other ten modes there are MMAL parameters for */
2059 + return vchiq_mmal_port_parameter_set(dev->instance, control,
2060 + mmal_ctrl->mmal_id,
2061 + &u32_value, sizeof(u32_value));
2062 +}
2063 +
2064 +static int ctrl_set_metering_mode(struct bm2835_mmal_dev *dev,
2065 + struct v4l2_ctrl *ctrl,
2066 + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl)
2067 +{
2068 + u32 u32_value;
2069 + struct vchiq_mmal_port *control;
2070 +
2071 + control = &dev->component[MMAL_COMPONENT_CAMERA]->control;
2072 +
2073 + switch (ctrl->val) {
2074 + case V4L2_EXPOSURE_METERING_AVERAGE:
2075 + u32_value = MMAL_PARAM_EXPOSUREMETERINGMODE_AVERAGE;
2076 + break;
2077 +
2078 + case V4L2_EXPOSURE_METERING_CENTER_WEIGHTED:
2079 + u32_value = MMAL_PARAM_EXPOSUREMETERINGMODE_BACKLIT;
2080 + break;
2081 +
2082 + case V4L2_EXPOSURE_METERING_SPOT:
2083 + u32_value = MMAL_PARAM_EXPOSUREMETERINGMODE_SPOT;
2084 + break;
2085 +
2086 + /* todo matrix weighting not added to Linux API till 3.9
2087 + case V4L2_EXPOSURE_METERING_MATRIX:
2088 + u32_value = MMAL_PARAM_EXPOSUREMETERINGMODE_MATRIX;
2089 + break;
2090 + */
2091 +
2092 + }
2093 +
2094 + return vchiq_mmal_port_parameter_set(dev->instance, control,
2095 + mmal_ctrl->mmal_id,
2096 + &u32_value, sizeof(u32_value));
2097 +}
2098 +
2099 +static int ctrl_set_awb_mode(struct bm2835_mmal_dev *dev,
2100 + struct v4l2_ctrl *ctrl,
2101 + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl)
2102 +{
2103 + u32 u32_value;
2104 + struct vchiq_mmal_port *control;
2105 +
2106 + control = &dev->component[MMAL_COMPONENT_CAMERA]->control;
2107 +
2108 + switch (ctrl->val) {
2109 + case V4L2_WHITE_BALANCE_MANUAL:
2110 + u32_value = MMAL_PARAM_AWBMODE_OFF;
2111 + break;
2112 +
2113 + case V4L2_WHITE_BALANCE_AUTO:
2114 + u32_value = MMAL_PARAM_AWBMODE_AUTO;
2115 + break;
2116 +
2117 + case V4L2_WHITE_BALANCE_INCANDESCENT:
2118 + u32_value = MMAL_PARAM_AWBMODE_INCANDESCENT;
2119 + break;
2120 +
2121 + case V4L2_WHITE_BALANCE_FLUORESCENT:
2122 + u32_value = MMAL_PARAM_AWBMODE_FLUORESCENT;
2123 + break;
2124 +
2125 + case V4L2_WHITE_BALANCE_FLUORESCENT_H:
2126 + u32_value = MMAL_PARAM_AWBMODE_TUNGSTEN;
2127 + break;
2128 +
2129 + case V4L2_WHITE_BALANCE_HORIZON:
2130 + u32_value = MMAL_PARAM_AWBMODE_HORIZON;
2131 + break;
2132 +
2133 + case V4L2_WHITE_BALANCE_DAYLIGHT:
2134 + u32_value = MMAL_PARAM_AWBMODE_SUNLIGHT;
2135 + break;
2136 +
2137 + case V4L2_WHITE_BALANCE_FLASH:
2138 + u32_value = MMAL_PARAM_AWBMODE_FLASH;
2139 + break;
2140 +
2141 + case V4L2_WHITE_BALANCE_CLOUDY:
2142 + u32_value = MMAL_PARAM_AWBMODE_CLOUDY;
2143 + break;
2144 +
2145 + case V4L2_WHITE_BALANCE_SHADE:
2146 + u32_value = MMAL_PARAM_AWBMODE_SHADE;
2147 + break;
2148 +
2149 + }
2150 +
2151 + return vchiq_mmal_port_parameter_set(dev->instance, control,
2152 + mmal_ctrl->mmal_id,
2153 + &u32_value, sizeof(u32_value));
2154 +}
2155 +
2156 +static int ctrl_set_image_effect(struct bm2835_mmal_dev *dev,
2157 + struct v4l2_ctrl *ctrl,
2158 + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl)
2159 +{
2160 + int ret = -EINVAL;
2161 + int i, j;
2162 + struct vchiq_mmal_port *control;
2163 + struct mmal_parameter_imagefx_parameters imagefx;
2164 +
2165 + for (i = 0; i < ARRAY_SIZE(v4l2_to_mmal_effects_values); i++) {
2166 + if (ctrl->val == v4l2_to_mmal_effects_values[i].v4l2_effect) {
2167 +
2168 + imagefx.effect =
2169 + v4l2_to_mmal_effects_values[i].mmal_effect;
2170 + imagefx.num_effect_params =
2171 + v4l2_to_mmal_effects_values[i].num_effect_params;
2172 +
2173 + if (imagefx.num_effect_params > MMAL_MAX_IMAGEFX_PARAMETERS)
2174 + imagefx.num_effect_params = MMAL_MAX_IMAGEFX_PARAMETERS;
2175 +
2176 + for (j = 0; j < imagefx.num_effect_params; j++)
2177 + imagefx.effect_parameter[j] =
2178 + v4l2_to_mmal_effects_values[i].effect_params[j];
2179 +
2180 + dev->colourfx.enable =
2181 + v4l2_to_mmal_effects_values[i].col_fx_enable;
2182 + if (!v4l2_to_mmal_effects_values[i].col_fx_fixed_cbcr) {
2183 + dev->colourfx.u =
2184 + v4l2_to_mmal_effects_values[i].u;
2185 + dev->colourfx.v =
2186 + v4l2_to_mmal_effects_values[i].v;
2187 + }
2188 +
2189 + control = &dev->component[MMAL_COMPONENT_CAMERA]->control;
2190 +
2191 + ret = vchiq_mmal_port_parameter_set(
2192 + dev->instance, control,
2193 + MMAL_PARAMETER_IMAGE_EFFECT_PARAMETERS,
2194 + &imagefx, sizeof(imagefx));
2195 + if (ret)
2196 + goto exit;
2197 +
2198 + ret = vchiq_mmal_port_parameter_set(
2199 + dev->instance, control,
2200 + MMAL_PARAMETER_COLOUR_EFFECT,
2201 + &dev->colourfx, sizeof(dev->colourfx));
2202 + }
2203 + }
2204 +
2205 +exit:
2206 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
2207 + "mmal_ctrl:%p ctrl id:0x%x ctrl val:%d imagefx:0x%x color_effect:%s u:%d v:%d ret %d(%d)\n",
2208 + mmal_ctrl, ctrl->id, ctrl->val, imagefx.effect,
2209 + dev->colourfx.enable ? "true" : "false",
2210 + dev->colourfx.u, dev->colourfx.v,
2211 + ret, (ret == 0 ? 0 : -EINVAL));
2212 + return (ret == 0 ? 0 : EINVAL);
2213 +}
2214 +
2215 +static int ctrl_set_colfx(struct bm2835_mmal_dev *dev,
2216 + struct v4l2_ctrl *ctrl,
2217 + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl)
2218 +{
2219 + int ret = -EINVAL;
2220 + struct vchiq_mmal_port *control;
2221 +
2222 + control = &dev->component[MMAL_COMPONENT_CAMERA]->control;
2223 +
2224 + dev->colourfx.enable = (ctrl->val & 0xff00) >> 8;
2225 + dev->colourfx.enable = ctrl->val & 0xff;
2226 +
2227 + ret = vchiq_mmal_port_parameter_set(dev->instance, control,
2228 + MMAL_PARAMETER_COLOUR_EFFECT,
2229 + &dev->colourfx, sizeof(dev->colourfx));
2230 +
2231 + v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev,
2232 + "After: mmal_ctrl:%p ctrl id:0x%x ctrl val:%d ret %d(%d)\n",
2233 + mmal_ctrl, ctrl->id, ctrl->val, ret,
2234 + (ret == 0 ? 0 : -EINVAL));
2235 + return (ret == 0 ? 0 : EINVAL);
2236 +}
2237 +
2238 +static int ctrl_set_bitrate(struct bm2835_mmal_dev *dev,
2239 + struct v4l2_ctrl *ctrl,
2240 + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl)
2241 +{
2242 + int ret;
2243 + struct vchiq_mmal_port *encoder_out;
2244 +
2245 + dev->capture.encode_bitrate = ctrl->val;
2246 +
2247 + encoder_out = &dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->output[0];
2248 +
2249 + ret = vchiq_mmal_port_parameter_set(dev->instance, encoder_out,
2250 + mmal_ctrl->mmal_id,
2251 + &ctrl->val, sizeof(ctrl->val));
2252 + ret = 0;
2253 + return ret;
2254 +}
2255 +
2256 +static int ctrl_set_bitrate_mode(struct bm2835_mmal_dev *dev,
2257 + struct v4l2_ctrl *ctrl,
2258 + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl)
2259 +{
2260 + u32 bitrate_mode;
2261 + struct vchiq_mmal_port *encoder_out;
2262 +
2263 + encoder_out = &dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->output[0];
2264 +
2265 + dev->capture.encode_bitrate_mode = ctrl->val;
2266 + switch (ctrl->val) {
2267 + default:
2268 + case V4L2_MPEG_VIDEO_BITRATE_MODE_VBR:
2269 + bitrate_mode = MMAL_VIDEO_RATECONTROL_VARIABLE;
2270 + break;
2271 + case V4L2_MPEG_VIDEO_BITRATE_MODE_CBR:
2272 + bitrate_mode = MMAL_VIDEO_RATECONTROL_CONSTANT;
2273 + break;
2274 + }
2275 +
2276 + vchiq_mmal_port_parameter_set(dev->instance, encoder_out,
2277 + mmal_ctrl->mmal_id,
2278 + &bitrate_mode,
2279 + sizeof(bitrate_mode));
2280 + return 0;
2281 +}
2282 +
2283 +static int ctrl_set_q_factor(struct bm2835_mmal_dev *dev,
2284 + struct v4l2_ctrl *ctrl,
2285 + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl)
2286 +{
2287 + u32 u32_value;
2288 + struct vchiq_mmal_port *jpeg_out;
2289 +
2290 + jpeg_out = &dev->component[MMAL_COMPONENT_IMAGE_ENCODE]->output[0];
2291 +
2292 + u32_value = ctrl->val;
2293 +
2294 + return vchiq_mmal_port_parameter_set(dev->instance, jpeg_out,
2295 + mmal_ctrl->mmal_id,
2296 + &u32_value, sizeof(u32_value));
2297 +}
2298 +
2299 +static int bm2835_mmal_s_ctrl(struct v4l2_ctrl *ctrl)
2300 +{
2301 + struct bm2835_mmal_dev *dev =
2302 + container_of(ctrl->handler, struct bm2835_mmal_dev,
2303 + ctrl_handler);
2304 + const struct bm2835_mmal_v4l2_ctrl *mmal_ctrl = ctrl->priv;
2305 +
2306 + if ((mmal_ctrl == NULL) ||
2307 + (mmal_ctrl->id != ctrl->id) ||
2308 + (mmal_ctrl->setter == NULL)) {
2309 + pr_warn("mmal_ctrl:%p ctrl id:%d\n", mmal_ctrl, ctrl->id);
2310 + return -EINVAL;
2311 + }
2312 +
2313 + return mmal_ctrl->setter(dev, ctrl, mmal_ctrl);
2314 +}
2315 +
2316 +static const struct v4l2_ctrl_ops bm2835_mmal_ctrl_ops = {
2317 + .s_ctrl = bm2835_mmal_s_ctrl,
2318 +};
2319 +
2320 +
2321 +
2322 +static const struct bm2835_mmal_v4l2_ctrl v4l2_ctrls[V4L2_CTRL_COUNT] = {
2323 + {
2324 + V4L2_CID_SATURATION, MMAL_CONTROL_TYPE_STD,
2325 + -100, 100, 0, 1, NULL,
2326 + MMAL_PARAMETER_SATURATION, &ctrl_set_rational
2327 + },
2328 + {
2329 + V4L2_CID_SHARPNESS, MMAL_CONTROL_TYPE_STD,
2330 + -100, 100, 0, 1, NULL,
2331 + MMAL_PARAMETER_SHARPNESS, &ctrl_set_rational
2332 + },
2333 + {
2334 + V4L2_CID_CONTRAST, MMAL_CONTROL_TYPE_STD,
2335 + -100, 100, 0, 1, NULL,
2336 + MMAL_PARAMETER_CONTRAST, &ctrl_set_rational
2337 + },
2338 + {
2339 + V4L2_CID_BRIGHTNESS, MMAL_CONTROL_TYPE_STD,
2340 + 0, 100, 50, 1, NULL,
2341 + MMAL_PARAMETER_BRIGHTNESS, &ctrl_set_rational
2342 + },
2343 + {
2344 + V4L2_CID_ISO_SENSITIVITY, MMAL_CONTROL_TYPE_INT_MENU,
2345 + 0, ARRAY_SIZE(iso_qmenu) - 1, 0, 1, iso_qmenu,
2346 + MMAL_PARAMETER_ISO, &ctrl_set_value
2347 + },
2348 + {
2349 + V4L2_CID_IMAGE_STABILIZATION, MMAL_CONTROL_TYPE_STD,
2350 + 0, 1, 0, 1, NULL,
2351 + MMAL_PARAMETER_VIDEO_STABILISATION, &ctrl_set_value
2352 + },
2353 +/* {
2354 + 0, MMAL_CONTROL_TYPE_CLUSTER, 3, 1, 0, NULL, 0, NULL
2355 + },
2356 +*/ {
2357 + V4L2_CID_EXPOSURE_AUTO, MMAL_CONTROL_TYPE_STD_MENU,
2358 + ~0x03, 3, V4L2_EXPOSURE_AUTO, 0, NULL,
2359 + MMAL_PARAMETER_EXPOSURE_MODE, &ctrl_set_exposure
2360 + },
2361 +/* todo this needs mixing in with set exposure
2362 + {
2363 + V4L2_CID_SCENE_MODE, MMAL_CONTROL_TYPE_STD_MENU,
2364 + },
2365 + */
2366 + {
2367 + V4L2_CID_AUTO_EXPOSURE_BIAS, MMAL_CONTROL_TYPE_INT_MENU,
2368 + 0, ARRAY_SIZE(ev_bias_qmenu) - 1,
2369 + (ARRAY_SIZE(ev_bias_qmenu)+1)/2 - 1, 0, ev_bias_qmenu,
2370 + MMAL_PARAMETER_EXPOSURE_COMP, &ctrl_set_value
2371 + },
2372 + {
2373 + V4L2_CID_EXPOSURE_METERING,
2374 + MMAL_CONTROL_TYPE_STD_MENU,
2375 + ~0x7, 2, V4L2_EXPOSURE_METERING_AVERAGE, 0, NULL,
2376 + MMAL_PARAMETER_EXP_METERING_MODE, &ctrl_set_metering_mode
2377 + },
2378 + {
2379 + V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE,
2380 + MMAL_CONTROL_TYPE_STD_MENU,
2381 + ~0x3fe, 9, V4L2_WHITE_BALANCE_AUTO, 0, NULL,
2382 + MMAL_PARAMETER_AWB_MODE, &ctrl_set_awb_mode
2383 + },
2384 + {
2385 + V4L2_CID_COLORFX, MMAL_CONTROL_TYPE_STD_MENU,
2386 + 0, 15, V4L2_COLORFX_NONE, 0, NULL,
2387 + MMAL_PARAMETER_IMAGE_EFFECT, &ctrl_set_image_effect
2388 + },
2389 + {
2390 + V4L2_CID_COLORFX_CBCR, MMAL_CONTROL_TYPE_STD,
2391 + 0, 0xffff, 0x8080, 1, NULL,
2392 + MMAL_PARAMETER_COLOUR_EFFECT, &ctrl_set_colfx
2393 + },
2394 + {
2395 + V4L2_CID_ROTATE, MMAL_CONTROL_TYPE_STD,
2396 + 0, 360, 0, 90, NULL,
2397 + MMAL_PARAMETER_ROTATION, &ctrl_set_rotate
2398 + },
2399 + {
2400 + V4L2_CID_HFLIP, MMAL_CONTROL_TYPE_STD,
2401 + 0, 1, 0, 1, NULL,
2402 + MMAL_PARAMETER_MIRROR, &ctrl_set_flip
2403 + },
2404 + {
2405 + V4L2_CID_VFLIP, MMAL_CONTROL_TYPE_STD,
2406 + 0, 1, 0, 1, NULL,
2407 + MMAL_PARAMETER_MIRROR, &ctrl_set_flip
2408 + },
2409 + {
2410 + V4L2_CID_MPEG_VIDEO_BITRATE_MODE, MMAL_CONTROL_TYPE_STD_MENU,
2411 + 0, ARRAY_SIZE(bitrate_mode_qmenu) - 1,
2412 + 0, 0, bitrate_mode_qmenu,
2413 + MMAL_PARAMETER_RATECONTROL, &ctrl_set_bitrate_mode
2414 + },
2415 + {
2416 + V4L2_CID_MPEG_VIDEO_BITRATE, MMAL_CONTROL_TYPE_STD,
2417 + 25*1000, 25*1000*1000, 10*1000*1000, 25*1000, NULL,
2418 + MMAL_PARAMETER_VIDEO_BIT_RATE, &ctrl_set_bitrate
2419 + },
2420 + {
2421 + V4L2_CID_JPEG_COMPRESSION_QUALITY, MMAL_CONTROL_TYPE_STD,
2422 + 0, 100,
2423 + 30, 1, NULL,
2424 + MMAL_PARAMETER_JPEG_Q_FACTOR, &ctrl_set_q_factor
2425 + },
2426 +};
2427 +
2428 +int bm2835_mmal_set_all_camera_controls(struct bm2835_mmal_dev *dev)
2429 +{
2430 + int c;
2431 + int ret;
2432 +
2433 + for (c = 0; c < V4L2_CTRL_COUNT; c++) {
2434 + if ((dev->ctrls[c]) && (v4l2_ctrls[c].setter)) {
2435 + ret = v4l2_ctrls[c].setter(dev, dev->ctrls[c],
2436 + &v4l2_ctrls[c]);
2437 + if (ret)
2438 + break;
2439 + }
2440 + }
2441 + return ret;
2442 +}
2443 +
2444 +int bm2835_mmal_init_controls(struct bm2835_mmal_dev *dev,
2445 + struct v4l2_ctrl_handler *hdl)
2446 +{
2447 + int c;
2448 + const struct bm2835_mmal_v4l2_ctrl *ctrl;
2449 +
2450 + v4l2_ctrl_handler_init(hdl, V4L2_CTRL_COUNT);
2451 +
2452 + for (c = 0; c < V4L2_CTRL_COUNT; c++) {
2453 + ctrl = &v4l2_ctrls[c];
2454 +
2455 + switch (ctrl->type) {
2456 + case MMAL_CONTROL_TYPE_STD:
2457 + dev->ctrls[c] = v4l2_ctrl_new_std(hdl,
2458 + &bm2835_mmal_ctrl_ops, ctrl->id,
2459 + ctrl->min, ctrl->max, ctrl->step, ctrl->def);
2460 + break;
2461 +
2462 + case MMAL_CONTROL_TYPE_STD_MENU:
2463 + dev->ctrls[c] = v4l2_ctrl_new_std_menu(hdl,
2464 + &bm2835_mmal_ctrl_ops, ctrl->id,
2465 + ctrl->max, ctrl->min, ctrl->def);
2466 + break;
2467 +
2468 + case MMAL_CONTROL_TYPE_INT_MENU:
2469 + dev->ctrls[c] = v4l2_ctrl_new_int_menu(hdl,
2470 + &bm2835_mmal_ctrl_ops, ctrl->id,
2471 + ctrl->max, ctrl->def, ctrl->imenu);
2472 + break;
2473 +
2474 + case MMAL_CONTROL_TYPE_CLUSTER:
2475 + /* skip this entry when constructing controls */
2476 + continue;
2477 + }
2478 +
2479 + if (hdl->error)
2480 + break;
2481 +
2482 + dev->ctrls[c]->priv = (void *)ctrl;
2483 + }
2484 +
2485 + if (hdl->error) {
2486 + pr_err("error adding control %d/%d id 0x%x\n", c,
2487 + V4L2_CTRL_COUNT, ctrl->id);
2488 + return hdl->error;
2489 + }
2490 +
2491 + for (c = 0; c < V4L2_CTRL_COUNT; c++) {
2492 + ctrl = &v4l2_ctrls[c];
2493 +
2494 + switch (ctrl->type) {
2495 + case MMAL_CONTROL_TYPE_CLUSTER:
2496 + v4l2_ctrl_auto_cluster(ctrl->min,
2497 + &dev->ctrls[c+1],
2498 + ctrl->max,
2499 + ctrl->def);
2500 + break;
2501 +
2502 + case MMAL_CONTROL_TYPE_STD:
2503 + case MMAL_CONTROL_TYPE_STD_MENU:
2504 + case MMAL_CONTROL_TYPE_INT_MENU:
2505 + break;
2506 + }
2507 +
2508 + }
2509 +
2510 + return 0;
2511 +}
2512 diff --git a/drivers/media/platform/bcm2835/mmal-common.h b/drivers/media/platform/bcm2835/mmal-common.h
2513 new file mode 100644
2514 index 0000000..84abbb3
2515 --- /dev/null
2516 +++ b/drivers/media/platform/bcm2835/mmal-common.h
2517 @@ -0,0 +1,51 @@
2518 +/*
2519 + * Broadcom BM2835 V4L2 driver
2520 + *
2521 + * Copyright © 2013 Raspberry Pi (Trading) Ltd.
2522 + *
2523 + * This file is subject to the terms and conditions of the GNU General Public
2524 + * License. See the file COPYING in the main directory of this archive
2525 + * for more details.
2526 + *
2527 + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk>
2528 + * Dave Stevenson <dsteve@broadcom.com>
2529 + * Simon Mellor <simellor@broadcom.com>
2530 + * Luke Diamand <luked@broadcom.com>
2531 + *
2532 + * MMAL structures
2533 + *
2534 + */
2535 +
2536 +#define MMAL_FOURCC(a, b, c, d) ((a) | (b << 8) | (c << 16) | (d << 24))
2537 +#define MMAL_MAGIC MMAL_FOURCC('m', 'm', 'a', 'l')
2538 +
2539 +/** Special value signalling that time is not known */
2540 +#define MMAL_TIME_UNKNOWN (1LL<<63)
2541 +
2542 +/* mapping between v4l and mmal video modes */
2543 +struct mmal_fmt {
2544 + char *name;
2545 + u32 fourcc; /* v4l2 format id */
2546 + u32 mmal;
2547 + int depth;
2548 + u32 mmal_component; /* MMAL component index to be used to encode */
2549 +};
2550 +
2551 +/* buffer for one video frame */
2552 +struct mmal_buffer {
2553 + /* v4l buffer data -- must be first */
2554 + struct vb2_buffer vb;
2555 +
2556 + /* list of buffers available */
2557 + struct list_head list;
2558 +
2559 + void *buffer; /* buffer pointer */
2560 + unsigned long buffer_size; /* size of allocated buffer */
2561 +};
2562 +
2563 +/* */
2564 +struct mmal_colourfx {
2565 + s32 enable;
2566 + u32 u;
2567 + u32 v;
2568 +};
2569 diff --git a/drivers/media/platform/bcm2835/mmal-encodings.h b/drivers/media/platform/bcm2835/mmal-encodings.h
2570 new file mode 100644
2571 index 0000000..856e80e
2572 --- /dev/null
2573 +++ b/drivers/media/platform/bcm2835/mmal-encodings.h
2574 @@ -0,0 +1,93 @@
2575 +/*
2576 + * Broadcom BM2835 V4L2 driver
2577 + *
2578 + * Copyright © 2013 Raspberry Pi (Trading) Ltd.
2579 + *
2580 + * This file is subject to the terms and conditions of the GNU General Public
2581 + * License. See the file COPYING in the main directory of this archive
2582 + * for more details.
2583 + *
2584 + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk>
2585 + * Dave Stevenson <dsteve@broadcom.com>
2586 + * Simon Mellor <simellor@broadcom.com>
2587 + * Luke Diamand <luked@broadcom.com>
2588 + */
2589 +
2590 +#define MMAL_ENCODING_H264 MMAL_FOURCC('H', '2', '6', '4')
2591 +#define MMAL_ENCODING_H263 MMAL_FOURCC('H', '2', '6', '3')
2592 +#define MMAL_ENCODING_MP4V MMAL_FOURCC('M', 'P', '4', 'V')
2593 +#define MMAL_ENCODING_MP2V MMAL_FOURCC('M', 'P', '2', 'V')
2594 +#define MMAL_ENCODING_MP1V MMAL_FOURCC('M', 'P', '1', 'V')
2595 +#define MMAL_ENCODING_WMV3 MMAL_FOURCC('W', 'M', 'V', '3')
2596 +#define MMAL_ENCODING_WMV2 MMAL_FOURCC('W', 'M', 'V', '2')
2597 +#define MMAL_ENCODING_WMV1 MMAL_FOURCC('W', 'M', 'V', '1')
2598 +#define MMAL_ENCODING_WVC1 MMAL_FOURCC('W', 'V', 'C', '1')
2599 +#define MMAL_ENCODING_VP8 MMAL_FOURCC('V', 'P', '8', ' ')
2600 +#define MMAL_ENCODING_VP7 MMAL_FOURCC('V', 'P', '7', ' ')
2601 +#define MMAL_ENCODING_VP6 MMAL_FOURCC('V', 'P', '6', ' ')
2602 +#define MMAL_ENCODING_THEORA MMAL_FOURCC('T', 'H', 'E', 'O')
2603 +#define MMAL_ENCODING_SPARK MMAL_FOURCC('S', 'P', 'R', 'K')
2604 +
2605 +#define MMAL_ENCODING_JPEG MMAL_FOURCC('J', 'P', 'E', 'G')
2606 +#define MMAL_ENCODING_GIF MMAL_FOURCC('G', 'I', 'F', ' ')
2607 +#define MMAL_ENCODING_PNG MMAL_FOURCC('P', 'N', 'G', ' ')
2608 +#define MMAL_ENCODING_PPM MMAL_FOURCC('P', 'P', 'M', ' ')
2609 +#define MMAL_ENCODING_TGA MMAL_FOURCC('T', 'G', 'A', ' ')
2610 +#define MMAL_ENCODING_BMP MMAL_FOURCC('B', 'M', 'P', ' ')
2611 +
2612 +#define MMAL_ENCODING_I420 MMAL_FOURCC('I', '4', '2', '0')
2613 +#define MMAL_ENCODING_I420_SLICE MMAL_FOURCC('S', '4', '2', '0')
2614 +#define MMAL_ENCODING_YV12 MMAL_FOURCC('Y', 'V', '1', '2')
2615 +#define MMAL_ENCODING_I422 MMAL_FOURCC('I', '4', '2', '2')
2616 +#define MMAL_ENCODING_I422_SLICE MMAL_FOURCC('S', '4', '2', '2')
2617 +#define MMAL_ENCODING_YUYV MMAL_FOURCC('Y', 'U', 'Y', 'V')
2618 +#define MMAL_ENCODING_YVYU MMAL_FOURCC('Y', 'V', 'Y', 'U')
2619 +#define MMAL_ENCODING_UYVY MMAL_FOURCC('U', 'Y', 'V', 'Y')
2620 +#define MMAL_ENCODING_VYUY MMAL_FOURCC('V', 'Y', 'U', 'Y')
2621 +#define MMAL_ENCODING_NV12 MMAL_FOURCC('N', 'V', '1', '2')
2622 +#define MMAL_ENCODING_NV21 MMAL_FOURCC('N', 'V', '2', '1')
2623 +#define MMAL_ENCODING_ARGB MMAL_FOURCC('A', 'R', 'G', 'B')
2624 +#define MMAL_ENCODING_RGBA MMAL_FOURCC('R', 'G', 'B', 'A')
2625 +#define MMAL_ENCODING_ABGR MMAL_FOURCC('A', 'B', 'G', 'R')
2626 +#define MMAL_ENCODING_BGRA MMAL_FOURCC('B', 'G', 'R', 'A')
2627 +#define MMAL_ENCODING_RGB16 MMAL_FOURCC('R', 'G', 'B', '2')
2628 +#define MMAL_ENCODING_RGB24 MMAL_FOURCC('R', 'G', 'B', '3')
2629 +#define MMAL_ENCODING_RGB32 MMAL_FOURCC('R', 'G', 'B', '4')
2630 +#define MMAL_ENCODING_BGR16 MMAL_FOURCC('B', 'G', 'R', '2')
2631 +#define MMAL_ENCODING_BGR24 MMAL_FOURCC('B', 'G', 'R', '3')
2632 +#define MMAL_ENCODING_BGR32 MMAL_FOURCC('B', 'G', 'R', '4')
2633 +
2634 +/** SAND Video (YUVUV128) format, native format understood by VideoCore.
2635 + * This format is *not* opaque - if requested you will receive full frames
2636 + * of YUV_UV video.
2637 + */
2638 +#define MMAL_ENCODING_YUVUV128 MMAL_FOURCC('S', 'A', 'N', 'D')
2639 +
2640 +/** VideoCore opaque image format, image handles are returned to
2641 + * the host but not the actual image data.
2642 + */
2643 +#define MMAL_ENCODING_OPAQUE MMAL_FOURCC('O', 'P', 'Q', 'V')
2644 +
2645 +/** An EGL image handle
2646 + */
2647 +#define MMAL_ENCODING_EGL_IMAGE MMAL_FOURCC('E', 'G', 'L', 'I')
2648 +
2649 +/* }@ */
2650 +
2651 +/** \name Pre-defined audio encodings */
2652 +/* @{ */
2653 +#define MMAL_ENCODING_PCM_UNSIGNED_BE MMAL_FOURCC('P', 'C', 'M', 'U')
2654 +#define MMAL_ENCODING_PCM_UNSIGNED_LE MMAL_FOURCC('p', 'c', 'm', 'u')
2655 +#define MMAL_ENCODING_PCM_SIGNED_BE MMAL_FOURCC('P', 'C', 'M', 'S')
2656 +#define MMAL_ENCODING_PCM_SIGNED_LE MMAL_FOURCC('p', 'c', 'm', 's')
2657 +#define MMAL_ENCODING_PCM_FLOAT_BE MMAL_FOURCC('P', 'C', 'M', 'F')
2658 +#define MMAL_ENCODING_PCM_FLOAT_LE MMAL_FOURCC('p', 'c', 'm', 'f')
2659 +
2660 +/* Pre-defined H264 encoding variants */
2661 +
2662 +/** ISO 14496-10 Annex B byte stream format */
2663 +#define MMAL_ENCODING_VARIANT_H264_DEFAULT 0
2664 +/** ISO 14496-15 AVC stream format */
2665 +#define MMAL_ENCODING_VARIANT_H264_AVC1 MMAL_FOURCC('A', 'V', 'C', '1')
2666 +/** Implicitly delineated NAL units without emulation prevention */
2667 +#define MMAL_ENCODING_VARIANT_H264_RAW MMAL_FOURCC('R', 'A', 'W', ' ')
2668 diff --git a/drivers/media/platform/bcm2835/mmal-msg-common.h b/drivers/media/platform/bcm2835/mmal-msg-common.h
2669 new file mode 100644
2670 index 0000000..66e8a6e
2671 --- /dev/null
2672 +++ b/drivers/media/platform/bcm2835/mmal-msg-common.h
2673 @@ -0,0 +1,50 @@
2674 +/*
2675 + * Broadcom BM2835 V4L2 driver
2676 + *
2677 + * Copyright © 2013 Raspberry Pi (Trading) Ltd.
2678 + *
2679 + * This file is subject to the terms and conditions of the GNU General Public
2680 + * License. See the file COPYING in the main directory of this archive
2681 + * for more details.
2682 + *
2683 + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk>
2684 + * Dave Stevenson <dsteve@broadcom.com>
2685 + * Simon Mellor <simellor@broadcom.com>
2686 + * Luke Diamand <luked@broadcom.com>
2687 + */
2688 +
2689 +#ifndef MMAL_MSG_COMMON_H
2690 +#define MMAL_MSG_COMMON_H
2691 +
2692 +enum mmal_msg_status {
2693 + MMAL_MSG_STATUS_SUCCESS = 0, /**< Success */
2694 + MMAL_MSG_STATUS_ENOMEM, /**< Out of memory */
2695 + MMAL_MSG_STATUS_ENOSPC, /**< Out of resources other than memory */
2696 + MMAL_MSG_STATUS_EINVAL, /**< Argument is invalid */
2697 + MMAL_MSG_STATUS_ENOSYS, /**< Function not implemented */
2698 + MMAL_MSG_STATUS_ENOENT, /**< No such file or directory */
2699 + MMAL_MSG_STATUS_ENXIO, /**< No such device or address */
2700 + MMAL_MSG_STATUS_EIO, /**< I/O error */
2701 + MMAL_MSG_STATUS_ESPIPE, /**< Illegal seek */
2702 + MMAL_MSG_STATUS_ECORRUPT, /**< Data is corrupt \attention */
2703 + MMAL_MSG_STATUS_ENOTREADY, /**< Component is not ready */
2704 + MMAL_MSG_STATUS_ECONFIG, /**< Component is not configured */
2705 + MMAL_MSG_STATUS_EISCONN, /**< Port is already connected */
2706 + MMAL_MSG_STATUS_ENOTCONN, /**< Port is disconnected */
2707 + MMAL_MSG_STATUS_EAGAIN, /**< Resource temporarily unavailable. */
2708 + MMAL_MSG_STATUS_EFAULT, /**< Bad address */
2709 +};
2710 +
2711 +struct mmal_rect {
2712 + s32 x; /**< x coordinate (from left) */
2713 + s32 y; /**< y coordinate (from top) */
2714 + s32 width; /**< width */
2715 + s32 height; /**< height */
2716 +};
2717 +
2718 +struct mmal_rational {
2719 + s32 num; /**< Numerator */
2720 + s32 den; /**< Denominator */
2721 +};
2722 +
2723 +#endif /* MMAL_MSG_COMMON_H */
2724 diff --git a/drivers/media/platform/bcm2835/mmal-msg-format.h b/drivers/media/platform/bcm2835/mmal-msg-format.h
2725 new file mode 100644
2726 index 0000000..123d86e
2727 --- /dev/null
2728 +++ b/drivers/media/platform/bcm2835/mmal-msg-format.h
2729 @@ -0,0 +1,81 @@
2730 +/*
2731 + * Broadcom BM2835 V4L2 driver
2732 + *
2733 + * Copyright © 2013 Raspberry Pi (Trading) Ltd.
2734 + *
2735 + * This file is subject to the terms and conditions of the GNU General Public
2736 + * License. See the file COPYING in the main directory of this archive
2737 + * for more details.
2738 + *
2739 + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk>
2740 + * Dave Stevenson <dsteve@broadcom.com>
2741 + * Simon Mellor <simellor@broadcom.com>
2742 + * Luke Diamand <luked@broadcom.com>
2743 + */
2744 +
2745 +#ifndef MMAL_MSG_FORMAT_H
2746 +#define MMAL_MSG_FORMAT_H
2747 +
2748 +#include "mmal-msg-common.h"
2749 +
2750 +/* MMAL_ES_FORMAT_T */
2751 +
2752 +
2753 +struct mmal_audio_format {
2754 + u32 channels; /**< Number of audio channels */
2755 + u32 sample_rate; /**< Sample rate */
2756 +
2757 + u32 bits_per_sample; /**< Bits per sample */
2758 + u32 block_align; /**< Size of a block of data */
2759 +};
2760 +
2761 +struct mmal_video_format {
2762 + u32 width; /**< Width of frame in pixels */
2763 + u32 height; /**< Height of frame in rows of pixels */
2764 + struct mmal_rect crop; /**< Visible region of the frame */
2765 + struct mmal_rational frame_rate; /**< Frame rate */
2766 + struct mmal_rational par; /**< Pixel aspect ratio */
2767 +
2768 + /* FourCC specifying the color space of the video stream. See the
2769 + * \ref MmalColorSpace "pre-defined color spaces" for some examples.
2770 + */
2771 + u32 color_space;
2772 +};
2773 +
2774 +struct mmal_subpicture_format {
2775 + u32 x_offset;
2776 + u32 y_offset;
2777 +};
2778 +
2779 +union mmal_es_specific_format {
2780 + struct mmal_audio_format audio;
2781 + struct mmal_video_format video;
2782 + struct mmal_subpicture_format subpicture;
2783 +};
2784 +
2785 +/** Definition of an elementary stream format (MMAL_ES_FORMAT_T) */
2786 +struct mmal_es_format {
2787 + u32 type; /* enum mmal_es_type */
2788 +
2789 + u32 encoding; /* FourCC specifying encoding of the elementary stream.*/
2790 + u32 encoding_variant; /* FourCC specifying the specific
2791 + * encoding variant of the elementary
2792 + * stream.
2793 + */
2794 +
2795 + union mmal_es_specific_format *es; /* TODO: pointers in
2796 + * message serialisation?!?
2797 + */
2798 + /* Type specific
2799 + * information for the
2800 + * elementary stream
2801 + */
2802 +
2803 + u32 bitrate; /**< Bitrate in bits per second */
2804 + u32 flags; /**< Flags describing properties of the elementary stream. */
2805 +
2806 + u32 extradata_size; /**< Size of the codec specific data */
2807 + u8 *extradata; /**< Codec specific data */
2808 +};
2809 +
2810 +#endif /* MMAL_MSG_FORMAT_H */
2811 diff --git a/drivers/media/platform/bcm2835/mmal-msg-port.h b/drivers/media/platform/bcm2835/mmal-msg-port.h
2812 new file mode 100644
2813 index 0000000..a55c1ea
2814 --- /dev/null
2815 +++ b/drivers/media/platform/bcm2835/mmal-msg-port.h
2816 @@ -0,0 +1,107 @@
2817 +/*
2818 + * Broadcom BM2835 V4L2 driver
2819 + *
2820 + * Copyright © 2013 Raspberry Pi (Trading) Ltd.
2821 + *
2822 + * This file is subject to the terms and conditions of the GNU General Public
2823 + * License. See the file COPYING in the main directory of this archive
2824 + * for more details.
2825 + *
2826 + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk>
2827 + * Dave Stevenson <dsteve@broadcom.com>
2828 + * Simon Mellor <simellor@broadcom.com>
2829 + * Luke Diamand <luked@broadcom.com>
2830 + */
2831 +
2832 +/* MMAL_PORT_TYPE_T */
2833 +enum mmal_port_type {
2834 + MMAL_PORT_TYPE_UNKNOWN = 0, /**< Unknown port type */
2835 + MMAL_PORT_TYPE_CONTROL, /**< Control port */
2836 + MMAL_PORT_TYPE_INPUT, /**< Input port */
2837 + MMAL_PORT_TYPE_OUTPUT, /**< Output port */
2838 + MMAL_PORT_TYPE_CLOCK, /**< Clock port */
2839 +};
2840 +
2841 +/** The port is pass-through and doesn't need buffer headers allocated */
2842 +#define MMAL_PORT_CAPABILITY_PASSTHROUGH 0x01
2843 +/** The port wants to allocate the buffer payloads.
2844 + * This signals a preference that payload allocation should be done
2845 + * on this port for efficiency reasons. */
2846 +#define MMAL_PORT_CAPABILITY_ALLOCATION 0x02
2847 +/** The port supports format change events.
2848 + * This applies to input ports and is used to let the client know
2849 + * whether the port supports being reconfigured via a format
2850 + * change event (i.e. without having to disable the port). */
2851 +#define MMAL_PORT_CAPABILITY_SUPPORTS_EVENT_FORMAT_CHANGE 0x04
2852 +
2853 +/* mmal port structure (MMAL_PORT_T)
2854 + *
2855 + * most elements are informational only, the pointer values for
2856 + * interogation messages are generally provided as additional
2857 + * strucures within the message. When used to set values only teh
2858 + * buffer_num, buffer_size and userdata parameters are writable.
2859 + */
2860 +struct mmal_port {
2861 + void *priv; /* Private member used by the framework */
2862 + const char *name; /* Port name. Used for debugging purposes (RO) */
2863 +
2864 + u32 type; /* Type of the port (RO) enum mmal_port_type */
2865 + u16 index; /* Index of the port in its type list (RO) */
2866 + u16 index_all; /* Index of the port in the list of all ports (RO) */
2867 +
2868 + u32 is_enabled; /* Indicates whether the port is enabled or not (RO) */
2869 + struct mmal_es_format *format; /* Format of the elementary stream */
2870 +
2871 + u32 buffer_num_min; /* Minimum number of buffers the port
2872 + * requires (RO). This is set by the
2873 + * component.
2874 + */
2875 +
2876 + u32 buffer_size_min; /* Minimum size of buffers the port
2877 + * requires (RO). This is set by the
2878 + * component.
2879 + */
2880 +
2881 + u32 buffer_alignment_min; /* Minimum alignment requirement for
2882 + * the buffers (RO). A value of
2883 + * zero means no special alignment
2884 + * requirements. This is set by the
2885 + * component.
2886 + */
2887 +
2888 + u32 buffer_num_recommended; /* Number of buffers the port
2889 + * recommends for optimal
2890 + * performance (RO). A value of
2891 + * zero means no special
2892 + * recommendation. This is set
2893 + * by the component.
2894 + */
2895 +
2896 + u32 buffer_size_recommended; /* Size of buffers the port
2897 + * recommends for optimal
2898 + * performance (RO). A value of
2899 + * zero means no special
2900 + * recommendation. This is set
2901 + * by the component.
2902 + */
2903 +
2904 + u32 buffer_num; /* Actual number of buffers the port will use.
2905 + * This is set by the client.
2906 + */
2907 +
2908 + u32 buffer_size; /* Actual maximum size of the buffers that
2909 + * will be sent to the port. This is set by
2910 + * the client.
2911 + */
2912 +
2913 + void *component; /* Component this port belongs to (Read Only) */
2914 +
2915 + void *userdata; /* Field reserved for use by the client */
2916 +
2917 + u32 capabilities; /* Flags describing the capabilities of a
2918 + * port (RO). Bitwise combination of \ref
2919 + * portcapabilities "Port capabilities"
2920 + * values.
2921 + */
2922 +
2923 +};
2924 diff --git a/drivers/media/platform/bcm2835/mmal-msg.h b/drivers/media/platform/bcm2835/mmal-msg.h
2925 new file mode 100644
2926 index 0000000..67b1076
2927 --- /dev/null
2928 +++ b/drivers/media/platform/bcm2835/mmal-msg.h
2929 @@ -0,0 +1,404 @@
2930 +/*
2931 + * Broadcom BM2835 V4L2 driver
2932 + *
2933 + * Copyright © 2013 Raspberry Pi (Trading) Ltd.
2934 + *
2935 + * This file is subject to the terms and conditions of the GNU General Public
2936 + * License. See the file COPYING in the main directory of this archive
2937 + * for more details.
2938 + *
2939 + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk>
2940 + * Dave Stevenson <dsteve@broadcom.com>
2941 + * Simon Mellor <simellor@broadcom.com>
2942 + * Luke Diamand <luked@broadcom.com>
2943 + */
2944 +
2945 +/* all the data structures which serialise the MMAL protocol. note
2946 + * these are directly mapped onto the recived message data.
2947 + *
2948 + * BEWARE: They seem to *assume* pointers are u32 and that there is no
2949 + * structure padding!
2950 + *
2951 + * NOTE: this implementation uses kernel types to ensure sizes. Rather
2952 + * than assigning values to enums to force their size the
2953 + * implementation uses fixed size types and not the enums (though the
2954 + * comments have the actual enum type
2955 + */
2956 +
2957 +#define VC_MMAL_VER 15
2958 +#define VC_MMAL_MIN_VER 10
2959 +#define VC_MMAL_SERVER_NAME MAKE_FOURCC("mmal")
2960 +
2961 +/* max total message size is 512 bytes */
2962 +#define MMAL_MSG_MAX_SIZE 512
2963 +/* with six 32bit header elements max payload is therefore 488 bytes */
2964 +#define MMAL_MSG_MAX_PAYLOAD 488
2965 +
2966 +#include "mmal-msg-common.h"
2967 +#include "mmal-msg-format.h"
2968 +#include "mmal-msg-port.h"
2969 +
2970 +enum mmal_msg_type {
2971 + MMAL_MSG_TYPE_QUIT = 1,
2972 + MMAL_MSG_TYPE_SERVICE_CLOSED,
2973 + MMAL_MSG_TYPE_GET_VERSION,
2974 + MMAL_MSG_TYPE_COMPONENT_CREATE,
2975 + MMAL_MSG_TYPE_COMPONENT_DESTROY, /* 5 */
2976 + MMAL_MSG_TYPE_COMPONENT_ENABLE,
2977 + MMAL_MSG_TYPE_COMPONENT_DISABLE,
2978 + MMAL_MSG_TYPE_PORT_INFO_GET,
2979 + MMAL_MSG_TYPE_PORT_INFO_SET,
2980 + MMAL_MSG_TYPE_PORT_ACTION, /* 10 */
2981 + MMAL_MSG_TYPE_BUFFER_FROM_HOST,
2982 + MMAL_MSG_TYPE_BUFFER_TO_HOST,
2983 + MMAL_MSG_TYPE_GET_STATS,
2984 + MMAL_MSG_TYPE_PORT_PARAMETER_SET,
2985 + MMAL_MSG_TYPE_PORT_PARAMETER_GET, /* 15 */
2986 + MMAL_MSG_TYPE_EVENT_TO_HOST,
2987 + MMAL_MSG_TYPE_GET_CORE_STATS_FOR_PORT,
2988 + MMAL_MSG_TYPE_OPAQUE_ALLOCATOR,
2989 + MMAL_MSG_TYPE_CONSUME_MEM,
2990 + MMAL_MSG_TYPE_LMK, /* 20 */
2991 + MMAL_MSG_TYPE_OPAQUE_ALLOCATOR_DESC,
2992 + MMAL_MSG_TYPE_DRM_GET_LHS32,
2993 + MMAL_MSG_TYPE_DRM_GET_TIME,
2994 + MMAL_MSG_TYPE_BUFFER_FROM_HOST_ZEROLEN,
2995 + MMAL_MSG_TYPE_PORT_FLUSH, /* 25 */
2996 + MMAL_MSG_TYPE_HOST_LOG,
2997 + MMAL_MSG_TYPE_MSG_LAST
2998 +};
2999 +
3000 +/* port action request messages differ depending on the action type */
3001 +enum mmal_msg_port_action_type {
3002 + MMAL_MSG_PORT_ACTION_TYPE_UNKNOWN = 0, /* Unkown action */
3003 + MMAL_MSG_PORT_ACTION_TYPE_ENABLE, /* Enable a port */
3004 + MMAL_MSG_PORT_ACTION_TYPE_DISABLE, /* Disable a port */
3005 + MMAL_MSG_PORT_ACTION_TYPE_FLUSH, /* Flush a port */
3006 + MMAL_MSG_PORT_ACTION_TYPE_CONNECT, /* Connect ports */
3007 + MMAL_MSG_PORT_ACTION_TYPE_DISCONNECT, /* Disconnect ports */
3008 + MMAL_MSG_PORT_ACTION_TYPE_SET_REQUIREMENTS, /* Set buffer requirements*/
3009 +};
3010 +
3011 +struct mmal_msg_header {
3012 + u32 magic;
3013 + u32 type; /** enum mmal_msg_type */
3014 +
3015 + /* Opaque handle to the control service */
3016 + struct mmal_control_service *control_service;
3017 +
3018 + struct mmal_msg_context *context; /** a u32 per message context */
3019 + u32 status; /** The status of the vchiq operation */
3020 + u32 padding;
3021 +};
3022 +
3023 +/* Send from VC to host to report version */
3024 +struct mmal_msg_version {
3025 + u32 flags;
3026 + u32 major;
3027 + u32 minor;
3028 + u32 minimum;
3029 +};
3030 +
3031 +/* request to VC to create component */
3032 +struct mmal_msg_component_create {
3033 + void *client_component; /* component context */
3034 + char name[128];
3035 + u32 pid; /* For debug */
3036 +};
3037 +
3038 +/* reply from VC to component creation request */
3039 +struct mmal_msg_component_create_reply {
3040 + u32 status; /** enum mmal_msg_status - how does this differ to
3041 + * the one in the header?
3042 + */
3043 + u32 component_handle; /* VideoCore handle for component */
3044 + u32 input_num; /* Number of input ports */
3045 + u32 output_num; /* Number of output ports */
3046 + u32 clock_num; /* Number of clock ports */
3047 +};
3048 +
3049 +/* request to VC to destroy a component */
3050 +struct mmal_msg_component_destroy {
3051 + u32 component_handle;
3052 +};
3053 +
3054 +struct mmal_msg_component_destroy_reply {
3055 + u32 status; /** The component destruction status */
3056 +};
3057 +
3058 +
3059 +/* request and reply to VC to enable a component */
3060 +struct mmal_msg_component_enable {
3061 + u32 component_handle;
3062 +};
3063 +
3064 +struct mmal_msg_component_enable_reply {
3065 + u32 status; /** The component enable status */
3066 +};
3067 +
3068 +
3069 +/* request and reply to VC to disable a component */
3070 +struct mmal_msg_component_disable {
3071 + u32 component_handle;
3072 +};
3073 +
3074 +struct mmal_msg_component_disable_reply {
3075 + u32 status; /** The component disable status */
3076 +};
3077 +
3078 +/* request to VC to get port information */
3079 +struct mmal_msg_port_info_get {
3080 + u32 component_handle; /* component handle port is associated with */
3081 + u32 port_type; /* enum mmal_msg_port_type */
3082 + u32 index; /* port index to query */
3083 +};
3084 +
3085 +/* reply from VC to get port info request */
3086 +struct mmal_msg_port_info_get_reply {
3087 + u32 status; /** enum mmal_msg_status */
3088 + u32 component_handle; /* component handle port is associated with */
3089 + u32 port_type; /* enum mmal_msg_port_type */
3090 + u32 port_index; /* port indexed in query */
3091 + s32 found; /* unused */
3092 + u32 port_handle; /**< Handle to use for this port */
3093 + struct mmal_port port;
3094 + struct mmal_es_format format; /* elementry stream format */
3095 + union mmal_es_specific_format es; /* es type specific data */
3096 + u8 extradata[MMAL_FORMAT_EXTRADATA_MAX_SIZE]; /* es extra data */
3097 +};
3098 +
3099 +/* request to VC to set port information */
3100 +struct mmal_msg_port_info_set {
3101 + u32 component_handle;
3102 + u32 port_type; /* enum mmal_msg_port_type */
3103 + u32 port_index; /* port indexed in query */
3104 + struct mmal_port port;
3105 + struct mmal_es_format format;
3106 + union mmal_es_specific_format es;
3107 + u8 extradata[MMAL_FORMAT_EXTRADATA_MAX_SIZE];
3108 +};
3109 +
3110 +/* reply from VC to port info set request */
3111 +struct mmal_msg_port_info_set_reply {
3112 + u32 status;
3113 + u32 component_handle; /* component handle port is associated with */
3114 + u32 port_type; /* enum mmal_msg_port_type */
3115 + u32 index; /* port indexed in query */
3116 + s32 found; /* unused */
3117 + u32 port_handle; /**< Handle to use for this port */
3118 + struct mmal_port port;
3119 + struct mmal_es_format format;
3120 + union mmal_es_specific_format es;
3121 + u8 extradata[MMAL_FORMAT_EXTRADATA_MAX_SIZE];
3122 +};
3123 +
3124 +
3125 +/* port action requests that take a mmal_port as a parameter */
3126 +struct mmal_msg_port_action_port {
3127 + u32 component_handle;
3128 + u32 port_handle;
3129 + u32 action; /* enum mmal_msg_port_action_type */
3130 + struct mmal_port port;
3131 +};
3132 +
3133 +/* port action requests that take handles as a parameter */
3134 +struct mmal_msg_port_action_handle {
3135 + u32 component_handle;
3136 + u32 port_handle;
3137 + u32 action; /* enum mmal_msg_port_action_type */
3138 + u32 connect_component_handle;
3139 + u32 connect_port_handle;
3140 +};
3141 +
3142 +struct mmal_msg_port_action_reply {
3143 + u32 status; /** The port action operation status */
3144 +};
3145 +
3146 +
3147 +
3148 +
3149 +/* MMAL buffer transfer */
3150 +
3151 +/** Size of space reserved in a buffer message for short messages. */
3152 +#define MMAL_VC_SHORT_DATA 128
3153 +
3154 +/** Signals that the current payload is the end of the stream of data */
3155 +#define MMAL_BUFFER_HEADER_FLAG_EOS (1<<0)
3156 +/** Signals that the start of the current payload starts a frame */
3157 +#define MMAL_BUFFER_HEADER_FLAG_FRAME_START (1<<1)
3158 +/** Signals that the end of the current payload ends a frame */
3159 +#define MMAL_BUFFER_HEADER_FLAG_FRAME_END (1<<2)
3160 +/** Signals that the current payload contains only complete frames (>1) */
3161 +#define MMAL_BUFFER_HEADER_FLAG_FRAME \
3162 + (MMAL_BUFFER_HEADER_FLAG_FRAME_START|MMAL_BUFFER_HEADER_FLAG_FRAME_END)
3163 +/** Signals that the current payload is a keyframe (i.e. self decodable) */
3164 +#define MMAL_BUFFER_HEADER_FLAG_KEYFRAME (1<<3)
3165 +/** Signals a discontinuity in the stream of data (e.g. after a seek).
3166 + * Can be used for instance by a decoder to reset its state */
3167 +#define MMAL_BUFFER_HEADER_FLAG_DISCONTINUITY (1<<4)
3168 +/** Signals a buffer containing some kind of config data for the component
3169 + * (e.g. codec config data) */
3170 +#define MMAL_BUFFER_HEADER_FLAG_CONFIG (1<<5)
3171 +/** Signals an encrypted payload */
3172 +#define MMAL_BUFFER_HEADER_FLAG_ENCRYPTED (1<<6)
3173 +/** Signals a buffer containing side information */
3174 +#define MMAL_BUFFER_HEADER_FLAG_CODECSIDEINFO (1<<7)
3175 +/** Signals a buffer which is the snapshot/postview image from a stills
3176 + * capture
3177 + */
3178 +#define MMAL_BUFFER_HEADER_FLAGS_SNAPSHOT (1<<8)
3179 +/** Signals a buffer which contains data known to be corrupted */
3180 +#define MMAL_BUFFER_HEADER_FLAG_CORRUPTED (1<<9)
3181 +/** Signals that a buffer failed to be transmitted */
3182 +#define MMAL_BUFFER_HEADER_FLAG_TRANSMISSION_FAILED (1<<10)
3183 +
3184 +struct mmal_driver_buffer {
3185 + u32 magic;
3186 + u32 component_handle;
3187 + u32 port_handle;
3188 + void *client_context;
3189 +};
3190 +
3191 +/* buffer header */
3192 +struct mmal_buffer_header {
3193 + struct mmal_buffer_header *next; /* next header */
3194 + void *priv; /* framework private data */
3195 + u32 cmd;
3196 + void *data;
3197 + u32 alloc_size;
3198 + u32 length;
3199 + u32 offset;
3200 + u32 flags;
3201 + s64 pts;
3202 + s64 dts;
3203 + void *type;
3204 + void *user_data;
3205 +};
3206 +
3207 +struct mmal_buffer_header_type_specific {
3208 + union {
3209 + struct {
3210 + u32 planes;
3211 + u32 offset[4];
3212 + u32 pitch[4];
3213 + u32 flags;
3214 + } video;
3215 + } u;
3216 +};
3217 +
3218 +struct mmal_msg_buffer_from_host {
3219 + /* The front 32 bytes of the buffer header are copied
3220 + * back to us in the reply to allow for context. This
3221 + * area is used to store two mmal_driver_buffer structures to
3222 + * allow for multiple concurrent service users.
3223 + */
3224 + /* control data */
3225 + struct mmal_driver_buffer drvbuf;
3226 +
3227 + /* referenced control data for passthrough buffer management */
3228 + struct mmal_driver_buffer drvbuf_ref;
3229 + struct mmal_buffer_header buffer_header; /* buffer header itself */
3230 + struct mmal_buffer_header_type_specific buffer_header_type_specific;
3231 + s32 is_zero_copy;
3232 + s32 has_reference;
3233 +
3234 + /** allows short data to be xfered in control message */
3235 + u32 payload_in_message;
3236 + u8 short_data[MMAL_VC_SHORT_DATA];
3237 +};
3238 +
3239 +
3240 +/* port parameter setting */
3241 +
3242 +#define MMAL_WORKER_PORT_PARAMETER_SPACE 96
3243 +
3244 +struct mmal_msg_port_parameter_set {
3245 + u32 component_handle; /* component */
3246 + u32 port_handle; /* port */
3247 + u32 id; /* Parameter ID */
3248 + u32 size; /* Parameter size */
3249 + uint32_t value[MMAL_WORKER_PORT_PARAMETER_SPACE];
3250 +};
3251 +
3252 +struct mmal_msg_port_parameter_set_reply {
3253 + u32 status; /** enum mmal_msg_status todo: how does this
3254 + * differ to the one in the header?
3255 + */
3256 +};
3257 +
3258 +/* port parameter getting */
3259 +
3260 +struct mmal_msg_port_parameter_get {
3261 + u32 component_handle; /* component */
3262 + u32 port_handle; /* port */
3263 + u32 id; /* Parameter ID */
3264 + u32 size; /* Parameter size */
3265 +};
3266 +
3267 +struct mmal_msg_port_parameter_get_reply {
3268 + u32 status; /* Status of mmal_port_parameter_get call */
3269 + u32 id; /* Parameter ID */
3270 + u32 size; /* Parameter size */
3271 + uint32_t value[MMAL_WORKER_PORT_PARAMETER_SPACE];
3272 +};
3273 +
3274 +/* event messages */
3275 +#define MMAL_WORKER_EVENT_SPACE 256
3276 +
3277 +struct mmal_msg_event_to_host {
3278 + void *client_component; /* component context */
3279 +
3280 + u32 port_type;
3281 + u32 port_num;
3282 +
3283 + u32 cmd;
3284 + u32 length;
3285 + u8 data[MMAL_WORKER_EVENT_SPACE];
3286 + struct mmal_buffer_header *delayed_buffer;
3287 +};
3288 +
3289 +/* all mmal messages are serialised through this structure */
3290 +struct mmal_msg {
3291 + /* header */
3292 + struct mmal_msg_header h;
3293 + /* payload */
3294 + union {
3295 + struct mmal_msg_version version;
3296 +
3297 + struct mmal_msg_component_create component_create;
3298 + struct mmal_msg_component_create_reply component_create_reply;
3299 +
3300 + struct mmal_msg_component_destroy component_destroy;
3301 + struct mmal_msg_component_destroy_reply component_destroy_reply;
3302 +
3303 + struct mmal_msg_component_enable component_enable;
3304 + struct mmal_msg_component_enable_reply component_enable_reply;
3305 +
3306 + struct mmal_msg_component_disable component_disable;
3307 + struct mmal_msg_component_disable_reply component_disable_reply;
3308 +
3309 + struct mmal_msg_port_info_get port_info_get;
3310 + struct mmal_msg_port_info_get_reply port_info_get_reply;
3311 +
3312 + struct mmal_msg_port_info_set port_info_set;
3313 + struct mmal_msg_port_info_set_reply port_info_set_reply;
3314 +
3315 + struct mmal_msg_port_action_port port_action_port;
3316 + struct mmal_msg_port_action_handle port_action_handle;
3317 + struct mmal_msg_port_action_reply port_action_reply;
3318 +
3319 + struct mmal_msg_buffer_from_host buffer_from_host;
3320 +
3321 + struct mmal_msg_port_parameter_set port_parameter_set;
3322 + struct mmal_msg_port_parameter_set_reply
3323 + port_parameter_set_reply;
3324 + struct mmal_msg_port_parameter_get
3325 + port_parameter_get;
3326 + struct mmal_msg_port_parameter_get_reply
3327 + port_parameter_get_reply;
3328 +
3329 + struct mmal_msg_event_to_host event_to_host;
3330 +
3331 + u8 payload[MMAL_MSG_MAX_PAYLOAD];
3332 + } u;
3333 +};
3334 diff --git a/drivers/media/platform/bcm2835/mmal-parameters.h b/drivers/media/platform/bcm2835/mmal-parameters.h
3335 new file mode 100644
3336 index 0000000..c611b58
3337 --- /dev/null
3338 +++ b/drivers/media/platform/bcm2835/mmal-parameters.h
3339 @@ -0,0 +1,539 @@
3340 +/*
3341 + * Broadcom BM2835 V4L2 driver
3342 + *
3343 + * Copyright © 2013 Raspberry Pi (Trading) Ltd.
3344 + *
3345 + * This file is subject to the terms and conditions of the GNU General Public
3346 + * License. See the file COPYING in the main directory of this archive
3347 + * for more details.
3348 + *
3349 + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk>
3350 + * Dave Stevenson <dsteve@broadcom.com>
3351 + * Simon Mellor <simellor@broadcom.com>
3352 + * Luke Diamand <luked@broadcom.com>
3353 + */
3354 +
3355 +/* common parameters */
3356 +
3357 +/** @name Parameter groups
3358 + * Parameters are divided into groups, and then allocated sequentially within
3359 + * a group using an enum.
3360 + * @{
3361 + */
3362 +
3363 +/** Common parameter ID group, used with many types of component. */
3364 +#define MMAL_PARAMETER_GROUP_COMMON (0<<16)
3365 +/** Camera-specific parameter ID group. */
3366 +#define MMAL_PARAMETER_GROUP_CAMERA (1<<16)
3367 +/** Video-specific parameter ID group. */
3368 +#define MMAL_PARAMETER_GROUP_VIDEO (2<<16)
3369 +/** Audio-specific parameter ID group. */
3370 +#define MMAL_PARAMETER_GROUP_AUDIO (3<<16)
3371 +/** Clock-specific parameter ID group. */
3372 +#define MMAL_PARAMETER_GROUP_CLOCK (4<<16)
3373 +/** Miracast-specific parameter ID group. */
3374 +#define MMAL_PARAMETER_GROUP_MIRACAST (5<<16)
3375 +
3376 +/* Common parameters */
3377 +enum mmal_parameter_common_type {
3378 + MMAL_PARAMETER_UNUSED /**< Never a valid parameter ID */
3379 + = MMAL_PARAMETER_GROUP_COMMON,
3380 + MMAL_PARAMETER_SUPPORTED_ENCODINGS, /**< MMAL_PARAMETER_ENCODING_T */
3381 + MMAL_PARAMETER_URI, /**< MMAL_PARAMETER_URI_T */
3382 +
3383 + /** MMAL_PARAMETER_CHANGE_EVENT_REQUEST_T */
3384 + MMAL_PARAMETER_CHANGE_EVENT_REQUEST,
3385 +
3386 + /** MMAL_PARAMETER_BOOLEAN_T */
3387 + MMAL_PARAMETER_ZERO_COPY,
3388 +
3389 + /**< MMAL_PARAMETER_BUFFER_REQUIREMENTS_T */
3390 + MMAL_PARAMETER_BUFFER_REQUIREMENTS,
3391 +
3392 + MMAL_PARAMETER_STATISTICS, /**< MMAL_PARAMETER_STATISTICS_T */
3393 + MMAL_PARAMETER_CORE_STATISTICS, /**< MMAL_PARAMETER_CORE_STATISTICS_T */
3394 + MMAL_PARAMETER_MEM_USAGE, /**< MMAL_PARAMETER_MEM_USAGE_T */
3395 + MMAL_PARAMETER_BUFFER_FLAG_FILTER, /**< MMAL_PARAMETER_UINT32_T */
3396 + MMAL_PARAMETER_SEEK, /**< MMAL_PARAMETER_SEEK_T */
3397 + MMAL_PARAMETER_POWERMON_ENABLE, /**< MMAL_PARAMETER_BOOLEAN_T */
3398 + MMAL_PARAMETER_LOGGING, /**< MMAL_PARAMETER_LOGGING_T */
3399 + MMAL_PARAMETER_SYSTEM_TIME /**< MMAL_PARAMETER_UINT64_T */
3400 +};
3401 +
3402 +/* camera parameters */
3403 +
3404 +enum mmal_parameter_camera_type {
3405 + /* 0 */
3406 + /** @ref MMAL_PARAMETER_THUMBNAIL_CONFIG_T */
3407 + MMAL_PARAMETER_THUMBNAIL_CONFIGURATION
3408 + = MMAL_PARAMETER_GROUP_CAMERA,
3409 + MMAL_PARAMETER_CAPTURE_QUALITY, /**< Unused? */
3410 + MMAL_PARAMETER_ROTATION, /**< @ref MMAL_PARAMETER_INT32_T */
3411 + MMAL_PARAMETER_EXIF_DISABLE, /**< @ref MMAL_PARAMETER_BOOLEAN_T */
3412 + MMAL_PARAMETER_EXIF, /**< @ref MMAL_PARAMETER_EXIF_T */
3413 + MMAL_PARAMETER_AWB_MODE, /**< @ref MMAL_PARAM_AWBMODE_T */
3414 + MMAL_PARAMETER_IMAGE_EFFECT, /**< @ref MMAL_PARAMETER_IMAGEFX_T */
3415 + MMAL_PARAMETER_COLOUR_EFFECT, /**< @ref MMAL_PARAMETER_COLOURFX_T */
3416 + MMAL_PARAMETER_FLICKER_AVOID, /**< @ref MMAL_PARAMETER_FLICKERAVOID_T */
3417 + MMAL_PARAMETER_FLASH, /**< @ref MMAL_PARAMETER_FLASH_T */
3418 + MMAL_PARAMETER_REDEYE, /**< @ref MMAL_PARAMETER_REDEYE_T */
3419 + MMAL_PARAMETER_FOCUS, /**< @ref MMAL_PARAMETER_FOCUS_T */
3420 + MMAL_PARAMETER_FOCAL_LENGTHS, /**< Unused? */
3421 + MMAL_PARAMETER_EXPOSURE_COMP, /**< @ref MMAL_PARAMETER_INT32_T */
3422 + MMAL_PARAMETER_ZOOM, /**< @ref MMAL_PARAMETER_SCALEFACTOR_T */
3423 + MMAL_PARAMETER_MIRROR, /**< @ref MMAL_PARAMETER_MIRROR_T */
3424 +
3425 + /* 0x10 */
3426 + MMAL_PARAMETER_CAMERA_NUM, /**< @ref MMAL_PARAMETER_UINT32_T */
3427 + MMAL_PARAMETER_CAPTURE, /**< @ref MMAL_PARAMETER_BOOLEAN_T */
3428 + MMAL_PARAMETER_EXPOSURE_MODE, /**< @ref MMAL_PARAMETER_EXPOSUREMODE_T */
3429 + MMAL_PARAMETER_EXP_METERING_MODE, /**< @ref MMAL_PARAMETER_EXPOSUREMETERINGMODE_T */
3430 + MMAL_PARAMETER_FOCUS_STATUS, /**< @ref MMAL_PARAMETER_FOCUS_STATUS_T */
3431 + MMAL_PARAMETER_CAMERA_CONFIG, /**< @ref MMAL_PARAMETER_CAMERA_CONFIG_T */
3432 + MMAL_PARAMETER_CAPTURE_STATUS, /**< @ref MMAL_PARAMETER_CAPTURE_STATUS_T */
3433 + MMAL_PARAMETER_FACE_TRACK, /**< @ref MMAL_PARAMETER_FACE_TRACK_T */
3434 + MMAL_PARAMETER_DRAW_BOX_FACES_AND_FOCUS, /**< @ref MMAL_PARAMETER_BOOLEAN_T */
3435 + MMAL_PARAMETER_JPEG_Q_FACTOR, /**< @ref MMAL_PARAMETER_UINT32_T */
3436 + MMAL_PARAMETER_FRAME_RATE, /**< @ref MMAL_PARAMETER_FRAME_RATE_T */
3437 + MMAL_PARAMETER_USE_STC, /**< @ref MMAL_PARAMETER_CAMERA_STC_MODE_T */
3438 + MMAL_PARAMETER_CAMERA_INFO, /**< @ref MMAL_PARAMETER_CAMERA_INFO_T */
3439 + MMAL_PARAMETER_VIDEO_STABILISATION, /**< @ref MMAL_PARAMETER_BOOLEAN_T */
3440 + MMAL_PARAMETER_FACE_TRACK_RESULTS, /**< @ref MMAL_PARAMETER_FACE_TRACK_RESULTS_T */
3441 + MMAL_PARAMETER_ENABLE_RAW_CAPTURE, /**< @ref MMAL_PARAMETER_BOOLEAN_T */
3442 +
3443 + /* 0x20 */
3444 + MMAL_PARAMETER_DPF_FILE, /**< @ref MMAL_PARAMETER_URI_T */
3445 + MMAL_PARAMETER_ENABLE_DPF_FILE, /**< @ref MMAL_PARAMETER_BOOLEAN_T */
3446 + MMAL_PARAMETER_DPF_FAIL_IS_FATAL, /**< @ref MMAL_PARAMETER_BOOLEAN_T */
3447 + MMAL_PARAMETER_CAPTURE_MODE, /**< @ref MMAL_PARAMETER_CAPTUREMODE_T */
3448 + MMAL_PARAMETER_FOCUS_REGIONS, /**< @ref MMAL_PARAMETER_FOCUS_REGIONS_T */
3449 + MMAL_PARAMETER_INPUT_CROP, /**< @ref MMAL_PARAMETER_INPUT_CROP_T */
3450 + MMAL_PARAMETER_SENSOR_INFORMATION, /**< @ref MMAL_PARAMETER_SENSOR_INFORMATION_T */
3451 + MMAL_PARAMETER_FLASH_SELECT, /**< @ref MMAL_PARAMETER_FLASH_SELECT_T */
3452 + MMAL_PARAMETER_FIELD_OF_VIEW, /**< @ref MMAL_PARAMETER_FIELD_OF_VIEW_T */
3453 + MMAL_PARAMETER_HIGH_DYNAMIC_RANGE, /**< @ref MMAL_PARAMETER_BOOLEAN_T */
3454 + MMAL_PARAMETER_DYNAMIC_RANGE_COMPRESSION, /**< @ref MMAL_PARAMETER_DRC_T */
3455 + MMAL_PARAMETER_ALGORITHM_CONTROL, /**< @ref MMAL_PARAMETER_ALGORITHM_CONTROL_T */
3456 + MMAL_PARAMETER_SHARPNESS, /**< @ref MMAL_PARAMETER_RATIONAL_T */
3457 + MMAL_PARAMETER_CONTRAST, /**< @ref MMAL_PARAMETER_RATIONAL_T */
3458 + MMAL_PARAMETER_BRIGHTNESS, /**< @ref MMAL_PARAMETER_RATIONAL_T */
3459 + MMAL_PARAMETER_SATURATION, /**< @ref MMAL_PARAMETER_RATIONAL_T */
3460 +
3461 + /* 0x30 */
3462 + MMAL_PARAMETER_ISO, /**< @ref MMAL_PARAMETER_UINT32_T */
3463 + MMAL_PARAMETER_ANTISHAKE, /**< @ref MMAL_PARAMETER_BOOLEAN_T */
3464 +
3465 + /** @ref MMAL_PARAMETER_IMAGEFX_PARAMETERS_T */
3466 + MMAL_PARAMETER_IMAGE_EFFECT_PARAMETERS,
3467 +
3468 + /** @ref MMAL_PARAMETER_BOOLEAN_T */
3469 + MMAL_PARAMETER_CAMERA_BURST_CAPTURE,
3470 +
3471 + /** @ref MMAL_PARAMETER_UINT32_T */
3472 + MMAL_PARAMETER_CAMERA_MIN_ISO,
3473 +
3474 + /** @ref MMAL_PARAMETER_CAMERA_USE_CASE_T */
3475 + MMAL_PARAMETER_CAMERA_USE_CASE,
3476 +
3477 + /**< @ref MMAL_PARAMETER_BOOLEAN_T */
3478 + MMAL_PARAMETER_CAPTURE_STATS_PASS,
3479 +
3480 + /** @ref MMAL_PARAMETER_UINT32_T */
3481 + MMAL_PARAMETER_CAMERA_CUSTOM_SENSOR_CONFIG,
3482 +
3483 + /** @ref MMAL_PARAMETER_BOOLEAN_T */
3484 + MMAL_PARAMETER_ENABLE_REGISTER_FILE,
3485 +
3486 + /** @ref MMAL_PARAMETER_BOOLEAN_T */
3487 + MMAL_PARAMETER_REGISTER_FAIL_IS_FATAL,
3488 +
3489 + /** @ref MMAL_PARAMETER_CONFIGFILE_T */
3490 + MMAL_PARAMETER_CONFIGFILE_REGISTERS,
3491 +
3492 + /** @ref MMAL_PARAMETER_CONFIGFILE_CHUNK_T */
3493 + MMAL_PARAMETER_CONFIGFILE_CHUNK_REGISTERS,
3494 + MMAL_PARAMETER_JPEG_ATTACH_LOG, /**< @ref MMAL_PARAMETER_BOOLEAN_T */
3495 + MMAL_PARAMETER_ZERO_SHUTTER_LAG, /**< @ref MMAL_PARAMETER_ZEROSHUTTERLAG_T */
3496 + MMAL_PARAMETER_FPS_RANGE, /**< @ref MMAL_PARAMETER_FPS_RANGE_T */
3497 + MMAL_PARAMETER_CAPTURE_EXPOSURE_COMP, /**< @ref MMAL_PARAMETER_INT32_T */
3498 +
3499 + /* 0x40 */
3500 + MMAL_PARAMETER_SW_SHARPEN_DISABLE, /**< @ref MMAL_PARAMETER_BOOLEAN_T */
3501 + MMAL_PARAMETER_FLASH_REQUIRED, /**< @ref MMAL_PARAMETER_BOOLEAN_T */
3502 + MMAL_PARAMETER_SW_SATURATION_DISABLE, /**< @ref MMAL_PARAMETER_BOOLEAN_T */
3503 +};
3504 +
3505 +enum mmal_parameter_camera_config_timestamp_mode {
3506 + MMAL_PARAM_TIMESTAMP_MODE_ZERO = 0, /* Always timestamp frames as 0 */
3507 + MMAL_PARAM_TIMESTAMP_MODE_RAW_STC, /* Use the raw STC value
3508 + * for the frame timestamp
3509 + */
3510 + MMAL_PARAM_TIMESTAMP_MODE_RESET_STC, /* Use the STC timestamp
3511 + * but subtract the
3512 + * timestamp of the first
3513 + * frame sent to give a
3514 + * zero based timestamp.
3515 + */
3516 +};
3517 +
3518 +/* camera configuration parameter */
3519 +struct mmal_parameter_camera_config {
3520 + /* Parameters for setting up the image pools */
3521 + u32 max_stills_w; /* Max size of stills capture */
3522 + u32 max_stills_h;
3523 + u32 stills_yuv422; /* Allow YUV422 stills capture */
3524 + u32 one_shot_stills; /* Continuous or one shot stills captures. */
3525 +
3526 + u32 max_preview_video_w; /* Max size of the preview or video
3527 + * capture frames
3528 + */
3529 + u32 max_preview_video_h;
3530 + u32 num_preview_video_frames;
3531 +
3532 + /** Sets the height of the circular buffer for stills capture. */
3533 + u32 stills_capture_circular_buffer_height;
3534 +
3535 + /** Allows preview/encode to resume as fast as possible after the stills
3536 + * input frame has been received, and then processes the still frame in
3537 + * the background whilst preview/encode has resumed.
3538 + * Actual mode is controlled by MMAL_PARAMETER_CAPTURE_MODE.
3539 + */
3540 + u32 fast_preview_resume;
3541 +
3542 + /** Selects algorithm for timestamping frames if
3543 + * there is no clock component connected.
3544 + * enum mmal_parameter_camera_config_timestamp_mode
3545 + */
3546 + s32 use_stc_timestamp;
3547 +};
3548 +
3549 +
3550 +enum mmal_parameter_exposuremode {
3551 + MMAL_PARAM_EXPOSUREMODE_OFF,
3552 + MMAL_PARAM_EXPOSUREMODE_AUTO,
3553 + MMAL_PARAM_EXPOSUREMODE_NIGHT,
3554 + MMAL_PARAM_EXPOSUREMODE_NIGHTPREVIEW,
3555 + MMAL_PARAM_EXPOSUREMODE_BACKLIGHT,
3556 + MMAL_PARAM_EXPOSUREMODE_SPOTLIGHT,
3557 + MMAL_PARAM_EXPOSUREMODE_SPORTS,
3558 + MMAL_PARAM_EXPOSUREMODE_SNOW,
3559 + MMAL_PARAM_EXPOSUREMODE_BEACH,
3560 + MMAL_PARAM_EXPOSUREMODE_VERYLONG,
3561 + MMAL_PARAM_EXPOSUREMODE_FIXEDFPS,
3562 + MMAL_PARAM_EXPOSUREMODE_ANTISHAKE,
3563 + MMAL_PARAM_EXPOSUREMODE_FIREWORKS,
3564 +};
3565 +
3566 +enum mmal_parameter_exposuremeteringmode {
3567 + MMAL_PARAM_EXPOSUREMETERINGMODE_AVERAGE,
3568 + MMAL_PARAM_EXPOSUREMETERINGMODE_SPOT,
3569 + MMAL_PARAM_EXPOSUREMETERINGMODE_BACKLIT,
3570 + MMAL_PARAM_EXPOSUREMETERINGMODE_MATRIX,
3571 +};
3572 +
3573 +enum mmal_parameter_awbmode {
3574 + MMAL_PARAM_AWBMODE_OFF,
3575 + MMAL_PARAM_AWBMODE_AUTO,
3576 + MMAL_PARAM_AWBMODE_SUNLIGHT,
3577 + MMAL_PARAM_AWBMODE_CLOUDY,
3578 + MMAL_PARAM_AWBMODE_SHADE,
3579 + MMAL_PARAM_AWBMODE_TUNGSTEN,
3580 + MMAL_PARAM_AWBMODE_FLUORESCENT,
3581 + MMAL_PARAM_AWBMODE_INCANDESCENT,
3582 + MMAL_PARAM_AWBMODE_FLASH,
3583 + MMAL_PARAM_AWBMODE_HORIZON,
3584 +};
3585 +
3586 +enum mmal_parameter_imagefx {
3587 + MMAL_PARAM_IMAGEFX_NONE,
3588 + MMAL_PARAM_IMAGEFX_NEGATIVE,
3589 + MMAL_PARAM_IMAGEFX_SOLARIZE,
3590 + MMAL_PARAM_IMAGEFX_POSTERIZE,
3591 + MMAL_PARAM_IMAGEFX_WHITEBOARD,
3592 + MMAL_PARAM_IMAGEFX_BLACKBOARD,
3593 + MMAL_PARAM_IMAGEFX_SKETCH,
3594 + MMAL_PARAM_IMAGEFX_DENOISE,
3595 + MMAL_PARAM_IMAGEFX_EMBOSS,
3596 + MMAL_PARAM_IMAGEFX_OILPAINT,
3597 + MMAL_PARAM_IMAGEFX_HATCH,
3598 + MMAL_PARAM_IMAGEFX_GPEN,
3599 + MMAL_PARAM_IMAGEFX_PASTEL,
3600 + MMAL_PARAM_IMAGEFX_WATERCOLOUR,
3601 + MMAL_PARAM_IMAGEFX_FILM,
3602 + MMAL_PARAM_IMAGEFX_BLUR,
3603 + MMAL_PARAM_IMAGEFX_SATURATION,
3604 + MMAL_PARAM_IMAGEFX_COLOURSWAP,
3605 + MMAL_PARAM_IMAGEFX_WASHEDOUT,
3606 + MMAL_PARAM_IMAGEFX_POSTERISE,
3607 + MMAL_PARAM_IMAGEFX_COLOURPOINT,
3608 + MMAL_PARAM_IMAGEFX_COLOURBALANCE,
3609 + MMAL_PARAM_IMAGEFX_CARTOON,
3610 +};
3611 +
3612 +/** Manner of video rate control */
3613 +enum mmal_parameter_rate_control_mode {
3614 + MMAL_VIDEO_RATECONTROL_DEFAULT,
3615 + MMAL_VIDEO_RATECONTROL_VARIABLE,
3616 + MMAL_VIDEO_RATECONTROL_CONSTANT,
3617 + MMAL_VIDEO_RATECONTROL_VARIABLE_SKIP_FRAMES,
3618 + MMAL_VIDEO_RATECONTROL_CONSTANT_SKIP_FRAMES
3619 +};
3620 +
3621 +/* video parameters */
3622 +
3623 +enum mmal_parameter_video_type {
3624 + /** @ref MMAL_DISPLAYREGION_T */
3625 + MMAL_PARAMETER_DISPLAYREGION = MMAL_PARAMETER_GROUP_VIDEO,
3626 +
3627 + /** @ref MMAL_PARAMETER_VIDEO_PROFILE_T */
3628 + MMAL_PARAMETER_SUPPORTED_PROFILES,
3629 +
3630 + /** @ref MMAL_PARAMETER_VIDEO_PROFILE_T */
3631 + MMAL_PARAMETER_PROFILE,
3632 +
3633 + /** @ref MMAL_PARAMETER_UINT32_T */
3634 + MMAL_PARAMETER_INTRAPERIOD,
3635 +
3636 + /** @ref MMAL_PARAMETER_VIDEO_RATECONTROL_T */
3637 + MMAL_PARAMETER_RATECONTROL,
3638 +
3639 + /** @ref MMAL_PARAMETER_VIDEO_NALUNITFORMAT_T */
3640 + MMAL_PARAMETER_NALUNITFORMAT,
3641 +
3642 + /** @ref MMAL_PARAMETER_BOOLEAN_T */
3643 + MMAL_PARAMETER_MINIMISE_FRAGMENTATION,
3644 +
3645 + /** @ref MMAL_PARAMETER_UINT32_T.
3646 + * Setting the value to zero resets to the default (one slice per frame).
3647 + */
3648 + MMAL_PARAMETER_MB_ROWS_PER_SLICE,
3649 +
3650 + /** @ref MMAL_PARAMETER_VIDEO_LEVEL_EXTENSION_T */
3651 + MMAL_PARAMETER_VIDEO_LEVEL_EXTENSION,
3652 +
3653 + /** @ref MMAL_PARAMETER_VIDEO_EEDE_ENABLE_T */
3654 + MMAL_PARAMETER_VIDEO_EEDE_ENABLE,
3655 +
3656 + /** @ref MMAL_PARAMETER_VIDEO_EEDE_LOSSRATE_T */
3657 + MMAL_PARAMETER_VIDEO_EEDE_LOSSRATE,
3658 +
3659 + /** @ref MMAL_PARAMETER_BOOLEAN_T. Request an I-frame. */
3660 + MMAL_PARAMETER_VIDEO_REQUEST_I_FRAME,
3661 + /** @ref MMAL_PARAMETER_VIDEO_INTRA_REFRESH_T */
3662 + MMAL_PARAMETER_VIDEO_INTRA_REFRESH,
3663 +
3664 + /** @ref MMAL_PARAMETER_BOOLEAN_T. */
3665 + MMAL_PARAMETER_VIDEO_IMMUTABLE_INPUT,
3666 +
3667 + /** @ref MMAL_PARAMETER_UINT32_T. Run-time bit rate control */
3668 + MMAL_PARAMETER_VIDEO_BIT_RATE,
3669 +
3670 + /** @ref MMAL_PARAMETER_FRAME_RATE_T */
3671 + MMAL_PARAMETER_VIDEO_FRAME_RATE,
3672 +
3673 + /** @ref MMAL_PARAMETER_UINT32_T. */
3674 + MMAL_PARAMETER_VIDEO_ENCODE_MIN_QUANT,
3675 +
3676 + /** @ref MMAL_PARAMETER_UINT32_T. */
3677 + MMAL_PARAMETER_VIDEO_ENCODE_MAX_QUANT,
3678 +
3679 + /** @ref MMAL_PARAMETER_VIDEO_ENCODE_RC_MODEL_T. */
3680 + MMAL_PARAMETER_VIDEO_ENCODE_RC_MODEL,
3681 +
3682 + MMAL_PARAMETER_EXTRA_BUFFERS, /**< @ref MMAL_PARAMETER_UINT32_T. */
3683 + /** @ref MMAL_PARAMETER_UINT32_T.
3684 + * Changing this parameter from the default can reduce frame rate
3685 + * because image buffers need to be re-pitched.
3686 + */
3687 + MMAL_PARAMETER_VIDEO_ALIGN_HORIZ,
3688 +
3689 + /** @ref MMAL_PARAMETER_UINT32_T.
3690 + * Changing this parameter from the default can reduce frame rate
3691 + * because image buffers need to be re-pitched.
3692 + */
3693 + MMAL_PARAMETER_VIDEO_ALIGN_VERT,
3694 +
3695 + /** @ref MMAL_PARAMETER_BOOLEAN_T. */
3696 + MMAL_PARAMETER_VIDEO_DROPPABLE_PFRAMES,
3697 +
3698 + /** @ref MMAL_PARAMETER_UINT32_T. */
3699 + MMAL_PARAMETER_VIDEO_ENCODE_INITIAL_QUANT,
3700 +
3701 + /**< @ref MMAL_PARAMETER_UINT32_T. */
3702 + MMAL_PARAMETER_VIDEO_ENCODE_QP_P,
3703 +
3704 + /**< @ref MMAL_PARAMETER_UINT32_T. */
3705 + MMAL_PARAMETER_VIDEO_ENCODE_RC_SLICE_DQUANT,
3706 +
3707 + /** @ref MMAL_PARAMETER_UINT32_T */
3708 + MMAL_PARAMETER_VIDEO_ENCODE_FRAME_LIMIT_BITS,
3709 +
3710 + /** @ref MMAL_PARAMETER_UINT32_T. */
3711 + MMAL_PARAMETER_VIDEO_ENCODE_PEAK_RATE,
3712 +
3713 + /* H264 specific parameters */
3714 +
3715 + /** @ref MMAL_PARAMETER_BOOLEAN_T. */
3716 + MMAL_PARAMETER_VIDEO_ENCODE_H264_DISABLE_CABAC,
3717 +
3718 + /** @ref MMAL_PARAMETER_BOOLEAN_T. */
3719 + MMAL_PARAMETER_VIDEO_ENCODE_H264_LOW_LATENCY,
3720 +
3721 + /** @ref MMAL_PARAMETER_BOOLEAN_T. */
3722 + MMAL_PARAMETER_VIDEO_ENCODE_H264_AU_DELIMITERS,
3723 +
3724 + /** @ref MMAL_PARAMETER_UINT32_T. */
3725 + MMAL_PARAMETER_VIDEO_ENCODE_H264_DEBLOCK_IDC,
3726 +
3727 + /** @ref MMAL_PARAMETER_VIDEO_ENCODER_H264_MB_INTRA_MODES_T. */
3728 + MMAL_PARAMETER_VIDEO_ENCODE_H264_MB_INTRA_MODE,
3729 +
3730 + /** @ref MMAL_PARAMETER_BOOLEAN_T */
3731 + MMAL_PARAMETER_VIDEO_ENCODE_HEADER_ON_OPEN,
3732 +
3733 + /** @ref MMAL_PARAMETER_BOOLEAN_T */
3734 + MMAL_PARAMETER_VIDEO_ENCODE_PRECODE_FOR_QP,
3735 +
3736 + /** @ref MMAL_PARAMETER_VIDEO_DRM_INIT_INFO_T. */
3737 + MMAL_PARAMETER_VIDEO_DRM_INIT_INFO,
3738 +
3739 + /** @ref MMAL_PARAMETER_BOOLEAN_T */
3740 + MMAL_PARAMETER_VIDEO_TIMESTAMP_FIFO,
3741 +
3742 + /** @ref MMAL_PARAMETER_BOOLEAN_T */
3743 + MMAL_PARAMETER_VIDEO_DECODE_ERROR_CONCEALMENT,
3744 +
3745 + /** @ref MMAL_PARAMETER_VIDEO_DRM_PROTECT_BUFFER_T. */
3746 + MMAL_PARAMETER_VIDEO_DRM_PROTECT_BUFFER,
3747 +
3748 + /** @ref MMAL_PARAMETER_BYTES_T */
3749 + MMAL_PARAMETER_VIDEO_DECODE_CONFIG_VD3
3750 +};
3751 +
3752 +/** Valid mirror modes */
3753 +enum mmal_parameter_mirror {
3754 + MMAL_PARAM_MIRROR_NONE,
3755 + MMAL_PARAM_MIRROR_VERTICAL,
3756 + MMAL_PARAM_MIRROR_HORIZONTAL,
3757 + MMAL_PARAM_MIRROR_BOTH,
3758 +};
3759 +
3760 +enum mmal_parameter_displaytransform {
3761 + MMAL_DISPLAY_ROT0 = 0,
3762 + MMAL_DISPLAY_MIRROR_ROT0 = 1,
3763 + MMAL_DISPLAY_MIRROR_ROT180 = 2,
3764 + MMAL_DISPLAY_ROT180 = 3,
3765 + MMAL_DISPLAY_MIRROR_ROT90 = 4,
3766 + MMAL_DISPLAY_ROT270 = 5,
3767 + MMAL_DISPLAY_ROT90 = 6,
3768 + MMAL_DISPLAY_MIRROR_ROT270 = 7,
3769 +};
3770 +
3771 +enum mmal_parameter_displaymode {
3772 + MMAL_DISPLAY_MODE_FILL = 0,
3773 + MMAL_DISPLAY_MODE_LETTERBOX = 1,
3774 +};
3775 +
3776 +enum mmal_parameter_displayset {
3777 + MMAL_DISPLAY_SET_NONE = 0,
3778 + MMAL_DISPLAY_SET_NUM = 1,
3779 + MMAL_DISPLAY_SET_FULLSCREEN = 2,
3780 + MMAL_DISPLAY_SET_TRANSFORM = 4,
3781 + MMAL_DISPLAY_SET_DEST_RECT = 8,
3782 + MMAL_DISPLAY_SET_SRC_RECT = 0x10,
3783 + MMAL_DISPLAY_SET_MODE = 0x20,
3784 + MMAL_DISPLAY_SET_PIXEL = 0x40,
3785 + MMAL_DISPLAY_SET_NOASPECT = 0x80,
3786 + MMAL_DISPLAY_SET_LAYER = 0x100,
3787 + MMAL_DISPLAY_SET_COPYPROTECT = 0x200,
3788 + MMAL_DISPLAY_SET_ALPHA = 0x400,
3789 +};
3790 +
3791 +struct mmal_parameter_displayregion {
3792 + /** Bitfield that indicates which fields are set and should be
3793 + * used. All other fields will maintain their current value.
3794 + * \ref MMAL_DISPLAYSET_T defines the bits that can be
3795 + * combined.
3796 + */
3797 + u32 set;
3798 +
3799 + /** Describes the display output device, with 0 typically
3800 + * being a directly connected LCD display. The actual values
3801 + * will depend on the hardware. Code using hard-wired numbers
3802 + * (e.g. 2) is certain to fail.
3803 + */
3804 +
3805 + u32 display_num;
3806 + /** Indicates that we are using the full device screen area,
3807 + * rather than a window of the display. If zero, then
3808 + * dest_rect is used to specify a region of the display to
3809 + * use.
3810 + */
3811 +
3812 + s32 fullscreen;
3813 + /** Indicates any rotation or flipping used to map frames onto
3814 + * the natural display orientation.
3815 + */
3816 + u32 transform; /* enum mmal_parameter_displaytransform */
3817 +
3818 + /** Where to display the frame within the screen, if
3819 + * fullscreen is zero.
3820 + */
3821 + struct vchiq_mmal_rect dest_rect;
3822 +
3823 + /** Indicates which area of the frame to display. If all
3824 + * values are zero, the whole frame will be used.
3825 + */
3826 + struct vchiq_mmal_rect src_rect;
3827 +
3828 + /** If set to non-zero, indicates that any display scaling
3829 + * should disregard the aspect ratio of the frame region being
3830 + * displayed.
3831 + */
3832 + s32 noaspect;
3833 +
3834 + /** Indicates how the image should be scaled to fit the
3835 + * display. \code MMAL_DISPLAY_MODE_FILL \endcode indicates
3836 + * that the image should fill the screen by potentially
3837 + * cropping the frames. Setting \code mode \endcode to \code
3838 + * MMAL_DISPLAY_MODE_LETTERBOX \endcode indicates that all the
3839 + * source region should be displayed and black bars added if
3840 + * necessary.
3841 + */
3842 + u32 mode; /* enum mmal_parameter_displaymode */
3843 +
3844 + /** If non-zero, defines the width of a source pixel relative
3845 + * to \code pixel_y \endcode. If zero, then pixels default to
3846 + * being square.
3847 + */
3848 + u32 pixel_x;
3849 +
3850 + /** If non-zero, defines the height of a source pixel relative
3851 + * to \code pixel_x \endcode. If zero, then pixels default to
3852 + * being square.
3853 + */
3854 + u32 pixel_y;
3855 +
3856 + /** Sets the relative depth of the images, with greater values
3857 + * being in front of smaller values.
3858 + */
3859 + u32 layer;
3860 +
3861 + /** Set to non-zero to ensure copy protection is used on
3862 + * output.
3863 + */
3864 + s32 copyprotect_required;
3865 +
3866 + /** Level of opacity of the layer, where zero is fully
3867 + * transparent and 255 is fully opaque.
3868 + */
3869 + u32 alpha;
3870 +};
3871 +
3872 +#define MMAL_MAX_IMAGEFX_PARAMETERS 5
3873 +
3874 +struct mmal_parameter_imagefx_parameters {
3875 + enum mmal_parameter_imagefx effect;
3876 + u32 num_effect_params;
3877 + u32 effect_parameter[MMAL_MAX_IMAGEFX_PARAMETERS];
3878 +};
3879 diff --git a/drivers/media/platform/bcm2835/mmal-vchiq.c b/drivers/media/platform/bcm2835/mmal-vchiq.c
3880 new file mode 100644
3881 index 0000000..a06fb44
3882 --- /dev/null
3883 +++ b/drivers/media/platform/bcm2835/mmal-vchiq.c
3884 @@ -0,0 +1,1916 @@
3885 +/*
3886 + * Broadcom BM2835 V4L2 driver
3887 + *
3888 + * Copyright © 2013 Raspberry Pi (Trading) Ltd.
3889 + *
3890 + * This file is subject to the terms and conditions of the GNU General Public
3891 + * License. See the file COPYING in the main directory of this archive
3892 + * for more details.
3893 + *
3894 + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk>
3895 + * Dave Stevenson <dsteve@broadcom.com>
3896 + * Simon Mellor <simellor@broadcom.com>
3897 + * Luke Diamand <luked@broadcom.com>
3898 + *
3899 + * V4L2 driver MMAL vchiq interface code
3900 + */
3901 +
3902 +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
3903 +
3904 +#include <linux/errno.h>
3905 +#include <linux/kernel.h>
3906 +#include <linux/mutex.h>
3907 +#include <linux/mm.h>
3908 +#include <linux/slab.h>
3909 +#include <linux/completion.h>
3910 +#include <linux/vmalloc.h>
3911 +#include <asm/cacheflush.h>
3912 +#include <media/videobuf2-vmalloc.h>
3913 +
3914 +#include "mmal-common.h"
3915 +#include "mmal-vchiq.h"
3916 +#include "mmal-msg.h"
3917 +
3918 +#define USE_VCHIQ_ARM
3919 +#include "interface/vchi/vchi.h"
3920 +
3921 +/* maximum number of components supported */
3922 +#define VCHIQ_MMAL_MAX_COMPONENTS 4
3923 +
3924 +/*#define FULL_MSG_DUMP 1*/
3925 +
3926 +#ifdef DEBUG
3927 +static const char *const msg_type_names[] = {
3928 + "UNKNOWN",
3929 + "QUIT",
3930 + "SERVICE_CLOSED",
3931 + "GET_VERSION",
3932 + "COMPONENT_CREATE",
3933 + "COMPONENT_DESTROY",
3934 + "COMPONENT_ENABLE",
3935 + "COMPONENT_DISABLE",
3936 + "PORT_INFO_GET",
3937 + "PORT_INFO_SET",
3938 + "PORT_ACTION",
3939 + "BUFFER_FROM_HOST",
3940 + "BUFFER_TO_HOST",
3941 + "GET_STATS",
3942 + "PORT_PARAMETER_SET",
3943 + "PORT_PARAMETER_GET",
3944 + "EVENT_TO_HOST",
3945 + "GET_CORE_STATS_FOR_PORT",
3946 + "OPAQUE_ALLOCATOR",
3947 + "CONSUME_MEM",
3948 + "LMK",
3949 + "OPAQUE_ALLOCATOR_DESC",
3950 + "DRM_GET_LHS32",
3951 + "DRM_GET_TIME",
3952 + "BUFFER_FROM_HOST_ZEROLEN",
3953 + "PORT_FLUSH",
3954 + "HOST_LOG",
3955 +};
3956 +#endif
3957 +
3958 +static const char *const port_action_type_names[] = {
3959 + "UNKNOWN",
3960 + "ENABLE",
3961 + "DISABLE",
3962 + "FLUSH",
3963 + "CONNECT",
3964 + "DISCONNECT",
3965 + "SET_REQUIREMENTS",
3966 +};
3967 +
3968 +#if defined(DEBUG)
3969 +#if defined(FULL_MSG_DUMP)
3970 +#define DBG_DUMP_MSG(MSG, MSG_LEN, TITLE) \
3971 + do { \
3972 + pr_debug(TITLE" type:%s(%d) length:%d\n", \
3973 + msg_type_names[(MSG)->h.type], \
3974 + (MSG)->h.type, (MSG_LEN)); \
3975 + print_hex_dump(KERN_DEBUG, "<<h: ", DUMP_PREFIX_OFFSET, \
3976 + 16, 4, (MSG), \
3977 + sizeof(struct mmal_msg_header), 1); \
3978 + print_hex_dump(KERN_DEBUG, "<<p: ", DUMP_PREFIX_OFFSET, \
3979 + 16, 4, \
3980 + ((u8 *)(MSG)) + sizeof(struct mmal_msg_header),\
3981 + (MSG_LEN) - sizeof(struct mmal_msg_header), 1); \
3982 + } while (0)
3983 +#else
3984 +#define DBG_DUMP_MSG(MSG, MSG_LEN, TITLE) \
3985 + { \
3986 + pr_debug(TITLE" type:%s(%d) length:%d\n", \
3987 + msg_type_names[(MSG)->h.type], \
3988 + (MSG)->h.type, (MSG_LEN)); \
3989 + }
3990 +#endif
3991 +#else
3992 +#define DBG_DUMP_MSG(MSG, MSG_LEN, TITLE)
3993 +#endif
3994 +
3995 +/* normal message context */
3996 +struct mmal_msg_context {
3997 + union {
3998 + struct {
3999 + /* work struct for defered callback - must come first */
4000 + struct work_struct work;
4001 + /* mmal instance */
4002 + struct vchiq_mmal_instance *instance;
4003 + /* mmal port */
4004 + struct vchiq_mmal_port *port;
4005 + /* actual buffer used to store bulk reply */
4006 + struct mmal_buffer *buffer;
4007 + /* amount of buffer used */
4008 + unsigned long buffer_used;
4009 + /* MMAL buffer flags */
4010 + u32 mmal_flags;
4011 + /* Presentation and Decode timestamps */
4012 + s64 pts;
4013 + s64 dts;
4014 +
4015 + int status; /* context status */
4016 +
4017 + } bulk; /* bulk data */
4018 +
4019 + struct {
4020 + /* message handle to release */
4021 + VCHI_HELD_MSG_T msg_handle;
4022 + /* pointer to received message */
4023 + struct mmal_msg *msg;
4024 + /* received message length */
4025 + u32 msg_len;
4026 + /* completion upon reply */
4027 + struct completion cmplt;
4028 + } sync; /* synchronous response */
4029 + } u;
4030 +
4031 +};
4032 +
4033 +struct vchiq_mmal_instance {
4034 + VCHI_SERVICE_HANDLE_T handle;
4035 +
4036 + /* ensure serialised access to service */
4037 + struct mutex vchiq_mutex;
4038 +
4039 + /* ensure serialised access to bulk operations */
4040 + struct mutex bulk_mutex;
4041 +
4042 + /* vmalloc page to receive scratch bulk xfers into */
4043 + void *bulk_scratch;
4044 +
4045 + /* component to use next */
4046 + int component_idx;
4047 + struct vchiq_mmal_component component[VCHIQ_MMAL_MAX_COMPONENTS];
4048 +};
4049 +
4050 +static struct mmal_msg_context *get_msg_context(struct vchiq_mmal_instance
4051 + *instance)
4052 +{
4053 + struct mmal_msg_context *msg_context;
4054 +
4055 + /* todo: should this be allocated from a pool to avoid kmalloc */
4056 + msg_context = kmalloc(sizeof(*msg_context), GFP_KERNEL);
4057 + memset(msg_context, 0, sizeof(*msg_context));
4058 +
4059 + return msg_context;
4060 +}
4061 +
4062 +static void release_msg_context(struct mmal_msg_context *msg_context)
4063 +{
4064 + kfree(msg_context);
4065 +}
4066 +
4067 +/* deals with receipt of event to host message */
4068 +static void event_to_host_cb(struct vchiq_mmal_instance *instance,
4069 + struct mmal_msg *msg, u32 msg_len)
4070 +{
4071 + pr_debug("unhandled event\n");
4072 + pr_debug("component:%p port type:%d num:%d cmd:0x%x length:%d\n",
4073 + msg->u.event_to_host.client_component,
4074 + msg->u.event_to_host.port_type,
4075 + msg->u.event_to_host.port_num,
4076 + msg->u.event_to_host.cmd, msg->u.event_to_host.length);
4077 +}
4078 +
4079 +/* workqueue scheduled callback
4080 + *
4081 + * we do this because it is important we do not call any other vchiq
4082 + * sync calls from witin the message delivery thread
4083 + */
4084 +static void buffer_work_cb(struct work_struct *work)
4085 +{
4086 + struct mmal_msg_context *msg_context = (struct mmal_msg_context *)work;
4087 +
4088 + msg_context->u.bulk.port->buffer_cb(msg_context->u.bulk.instance,
4089 + msg_context->u.bulk.port,
4090 + msg_context->u.bulk.status,
4091 + msg_context->u.bulk.buffer,
4092 + msg_context->u.bulk.buffer_used,
4093 + msg_context->u.bulk.mmal_flags,
4094 + msg_context->u.bulk.dts,
4095 + msg_context->u.bulk.pts);
4096 +
4097 + /* release message context */
4098 + release_msg_context(msg_context);
4099 +}
4100 +
4101 +/* enqueue a bulk receive for a given message context */
4102 +static int bulk_receive(struct vchiq_mmal_instance *instance,
4103 + struct mmal_msg *msg,
4104 + struct mmal_msg_context *msg_context)
4105 +{
4106 + unsigned long rd_len;
4107 + unsigned long flags = 0;
4108 + int ret;
4109 +
4110 + /* bulk mutex stops other bulk operations while we have a
4111 + * receive in progress - released in callback
4112 + */
4113 + ret = mutex_lock_interruptible(&instance->bulk_mutex);
4114 + if (ret != 0)
4115 + return ret;
4116 +
4117 + rd_len = msg->u.buffer_from_host.buffer_header.length;
4118 +
4119 + /* take buffer from queue */
4120 + spin_lock_irqsave(&msg_context->u.bulk.port->slock, flags);
4121 + if (list_empty(&msg_context->u.bulk.port->buffers)) {
4122 + spin_unlock_irqrestore(&msg_context->u.bulk.port->slock, flags);
4123 + pr_err("buffer list empty trying to submit bulk receive\n");
4124 +
4125 + /* todo: this is a serious error, we should never have
4126 + * commited a buffer_to_host operation to the mmal
4127 + * port without the buffer to back it up (underflow
4128 + * handling) and there is no obvious way to deal with
4129 + * this - how is the mmal servie going to react when
4130 + * we fail to do the xfer and reschedule a buffer when
4131 + * it arrives? perhaps a starved flag to indicate a
4132 + * waiting bulk receive?
4133 + */
4134 +
4135 + mutex_unlock(&instance->bulk_mutex);
4136 +
4137 + return -EINVAL;
4138 + }
4139 +
4140 + msg_context->u.bulk.buffer =
4141 + list_entry(msg_context->u.bulk.port->buffers.next,
4142 + struct mmal_buffer, list);
4143 + list_del(&msg_context->u.bulk.buffer->list);
4144 +
4145 + spin_unlock_irqrestore(&msg_context->u.bulk.port->slock, flags);
4146 +
4147 + /* ensure we do not overrun the available buffer */
4148 + if (rd_len > msg_context->u.bulk.buffer->buffer_size) {
4149 + rd_len = msg_context->u.bulk.buffer->buffer_size;
4150 + pr_warn("short read as not enough receive buffer space\n");
4151 + /* todo: is this the correct response, what happens to
4152 + * the rest of the message data?
4153 + */
4154 + }
4155 +
4156 + /* store length */
4157 + msg_context->u.bulk.buffer_used = rd_len;
4158 + msg_context->u.bulk.mmal_flags =
4159 + msg->u.buffer_from_host.buffer_header.flags;
4160 + msg_context->u.bulk.dts = msg->u.buffer_from_host.buffer_header.dts;
4161 + msg_context->u.bulk.pts = msg->u.buffer_from_host.buffer_header.pts;
4162 +
4163 + // only need to flush L1 cache here, as VCHIQ takes care of the L2
4164 + // cache.
4165 + __cpuc_flush_dcache_area(msg_context->u.bulk.buffer->buffer, rd_len);
4166 +
4167 + /* queue the bulk submission */
4168 + vchi_service_use(instance->handle);
4169 + ret = vchi_bulk_queue_receive(instance->handle,
4170 + msg_context->u.bulk.buffer->buffer,
4171 + /* Actual receive needs to be a multiple
4172 + * of 4 bytes
4173 + */
4174 + (rd_len + 3) & ~3,
4175 + VCHI_FLAGS_CALLBACK_WHEN_OP_COMPLETE |
4176 + VCHI_FLAGS_BLOCK_UNTIL_QUEUED,
4177 + msg_context);
4178 +
4179 + vchi_service_release(instance->handle);
4180 +
4181 + if (ret != 0) {
4182 + /* callback will not be clearing the mutex */
4183 + mutex_unlock(&instance->bulk_mutex);
4184 + }
4185 +
4186 + return ret;
4187 +}
4188 +
4189 +/* enque a dummy bulk receive for a given message context */
4190 +static int dummy_bulk_receive(struct vchiq_mmal_instance *instance,
4191 + struct mmal_msg_context *msg_context)
4192 +{
4193 + int ret;
4194 +
4195 + /* bulk mutex stops other bulk operations while we have a
4196 + * receive in progress - released in callback
4197 + */
4198 + ret = mutex_lock_interruptible(&instance->bulk_mutex);
4199 + if (ret != 0)
4200 + return ret;
4201 +
4202 + /* zero length indicates this was a dummy transfer */
4203 + msg_context->u.bulk.buffer_used = 0;
4204 +
4205 + /* queue the bulk submission */
4206 + vchi_service_use(instance->handle);
4207 +
4208 + ret = vchi_bulk_queue_receive(instance->handle,
4209 + instance->bulk_scratch,
4210 + 8,
4211 + VCHI_FLAGS_CALLBACK_WHEN_OP_COMPLETE |
4212 + VCHI_FLAGS_BLOCK_UNTIL_QUEUED,
4213 + msg_context);
4214 +
4215 + vchi_service_release(instance->handle);
4216 +
4217 + if (ret != 0) {
4218 + /* callback will not be clearing the mutex */
4219 + mutex_unlock(&instance->bulk_mutex);
4220 + }
4221 +
4222 + return ret;
4223 +}
4224 +
4225 +/* data in message, memcpy from packet into output buffer */
4226 +static int inline_receive(struct vchiq_mmal_instance *instance,
4227 + struct mmal_msg *msg,
4228 + struct mmal_msg_context *msg_context)
4229 +{
4230 + unsigned long flags = 0;
4231 +
4232 + /* take buffer from queue */
4233 + spin_lock_irqsave(&msg_context->u.bulk.port->slock, flags);
4234 + if (list_empty(&msg_context->u.bulk.port->buffers)) {
4235 + spin_unlock_irqrestore(&msg_context->u.bulk.port->slock, flags);
4236 + pr_err("buffer list empty trying to receive inline\n");
4237 +
4238 + /* todo: this is a serious error, we should never have
4239 + * commited a buffer_to_host operation to the mmal
4240 + * port without the buffer to back it up (with
4241 + * underflow handling) and there is no obvious way to
4242 + * deal with this. Less bad than the bulk case as we
4243 + * can just drop this on the floor but...unhelpful
4244 + */
4245 + return -EINVAL;
4246 + }
4247 +
4248 + msg_context->u.bulk.buffer =
4249 + list_entry(msg_context->u.bulk.port->buffers.next,
4250 + struct mmal_buffer, list);
4251 + list_del(&msg_context->u.bulk.buffer->list);
4252 +
4253 + spin_unlock_irqrestore(&msg_context->u.bulk.port->slock, flags);
4254 +
4255 + memcpy(msg_context->u.bulk.buffer->buffer,
4256 + msg->u.buffer_from_host.short_data,
4257 + msg->u.buffer_from_host.payload_in_message);
4258 +
4259 + msg_context->u.bulk.buffer_used =
4260 + msg->u.buffer_from_host.payload_in_message;
4261 +
4262 + return 0;
4263 +}
4264 +
4265 +/* queue the buffer availability with MMAL_MSG_TYPE_BUFFER_FROM_HOST */
4266 +static int
4267 +buffer_from_host(struct vchiq_mmal_instance *instance,
4268 + struct vchiq_mmal_port *port, struct mmal_buffer *buf)
4269 +{
4270 + struct mmal_msg_context *msg_context;
4271 + struct mmal_msg m;
4272 + int ret;
4273 +
4274 + pr_debug("instance:%p buffer:%p\n", instance->handle, buf);
4275 +
4276 + /* bulk mutex stops other bulk operations while we
4277 + * have a receive in progress
4278 + */
4279 + if (mutex_lock_interruptible(&instance->bulk_mutex))
4280 + return -EINTR;
4281 +
4282 + /* get context */
4283 + msg_context = get_msg_context(instance);
4284 + if (msg_context == NULL)
4285 + return -ENOMEM;
4286 +
4287 + /* store bulk message context for when data arrives */
4288 + msg_context->u.bulk.instance = instance;
4289 + msg_context->u.bulk.port = port;
4290 + msg_context->u.bulk.buffer = NULL; /* not valid until bulk xfer */
4291 + msg_context->u.bulk.buffer_used = 0;
4292 +
4293 + /* initialise work structure ready to schedule callback */
4294 + INIT_WORK(&msg_context->u.bulk.work, buffer_work_cb);
4295 +
4296 + /* prep the buffer from host message */
4297 + memset(&m, 0xbc, sizeof(m)); /* just to make debug clearer */
4298 +
4299 + m.h.type = MMAL_MSG_TYPE_BUFFER_FROM_HOST;
4300 + m.h.magic = MMAL_MAGIC;
4301 + m.h.context = msg_context;
4302 + m.h.status = 0;
4303 +
4304 + /* drvbuf is our private data passed back */
4305 + m.u.buffer_from_host.drvbuf.magic = MMAL_MAGIC;
4306 + m.u.buffer_from_host.drvbuf.component_handle = port->component->handle;
4307 + m.u.buffer_from_host.drvbuf.port_handle = port->handle;
4308 + m.u.buffer_from_host.drvbuf.client_context = msg_context;
4309 +
4310 + /* buffer header */
4311 + m.u.buffer_from_host.buffer_header.cmd = 0;
4312 + m.u.buffer_from_host.buffer_header.data = buf->buffer;
4313 + m.u.buffer_from_host.buffer_header.alloc_size = buf->buffer_size;
4314 + m.u.buffer_from_host.buffer_header.length = 0; /* nothing used yet */
4315 + m.u.buffer_from_host.buffer_header.offset = 0; /* no offset */
4316 + m.u.buffer_from_host.buffer_header.flags = 0; /* no flags */
4317 + m.u.buffer_from_host.buffer_header.pts = MMAL_TIME_UNKNOWN;
4318 + m.u.buffer_from_host.buffer_header.dts = MMAL_TIME_UNKNOWN;
4319 +
4320 + /* clear buffer type sepecific data */
4321 + memset(&m.u.buffer_from_host.buffer_header_type_specific, 0,
4322 + sizeof(m.u.buffer_from_host.buffer_header_type_specific));
4323 +
4324 + /* no payload in message */
4325 + m.u.buffer_from_host.payload_in_message = 0;
4326 +
4327 + vchi_service_use(instance->handle);
4328 +
4329 + ret = vchi_msg_queue(instance->handle, &m,
4330 + sizeof(struct mmal_msg_header) +
4331 + sizeof(m.u.buffer_from_host),
4332 + VCHI_FLAGS_BLOCK_UNTIL_QUEUED, NULL);
4333 +
4334 + if (ret != 0) {
4335 + release_msg_context(msg_context);
4336 + /* todo: is this correct error value? */
4337 + }
4338 +
4339 + vchi_service_release(instance->handle);
4340 +
4341 + mutex_unlock(&instance->bulk_mutex);
4342 +
4343 + return ret;
4344 +}
4345 +
4346 +/* submit a buffer to the mmal sevice
4347 + *
4348 + * the buffer_from_host uses size data from the ports next available
4349 + * mmal_buffer and deals with there being no buffer available by
4350 + * incrementing the underflow for later
4351 + */
4352 +static int port_buffer_from_host(struct vchiq_mmal_instance *instance,
4353 + struct vchiq_mmal_port *port)
4354 +{
4355 + int ret;
4356 + struct mmal_buffer *buf;
4357 + unsigned long flags = 0;
4358 +
4359 + if (!port->enabled)
4360 + return -EINVAL;
4361 +
4362 + /* peek buffer from queue */
4363 + spin_lock_irqsave(&port->slock, flags);
4364 + if (list_empty(&port->buffers)) {
4365 + port->buffer_underflow++;
4366 + spin_unlock_irqrestore(&port->slock, flags);
4367 + return -ENOSPC;
4368 + }
4369 +
4370 + buf = list_entry(port->buffers.next, struct mmal_buffer, list);
4371 +
4372 + spin_unlock_irqrestore(&port->slock, flags);
4373 +
4374 + /* issue buffer to mmal service */
4375 + ret = buffer_from_host(instance, port, buf);
4376 + if (ret) {
4377 + pr_err("adding buffer header failed\n");
4378 + /* todo: how should this be dealt with */
4379 + }
4380 +
4381 + return ret;
4382 +}
4383 +
4384 +/* deals with receipt of buffer to host message */
4385 +static void buffer_to_host_cb(struct vchiq_mmal_instance *instance,
4386 + struct mmal_msg *msg, u32 msg_len)
4387 +{
4388 + struct mmal_msg_context *msg_context;
4389 +
4390 + pr_debug("buffer_to_host_cb: instance:%p msg:%p msg_len:%d\n",
4391 + instance, msg, msg_len);
4392 +
4393 + if (msg->u.buffer_from_host.drvbuf.magic == MMAL_MAGIC) {
4394 + msg_context = msg->u.buffer_from_host.drvbuf.client_context;
4395 + } else {
4396 + pr_err("MMAL_MSG_TYPE_BUFFER_TO_HOST with bad magic\n");
4397 + return;
4398 + }
4399 +
4400 + if (msg->h.status != MMAL_MSG_STATUS_SUCCESS) {
4401 + /* message reception had an error */
4402 + pr_warn("error %d in reply\n", msg->h.status);
4403 +
4404 + msg_context->u.bulk.status = msg->h.status;
4405 +
4406 + } else if (msg->u.buffer_from_host.buffer_header.length == 0) {
4407 + /* empty buffer */
4408 + if (msg->u.buffer_from_host.buffer_header.flags &
4409 + MMAL_BUFFER_HEADER_FLAG_EOS) {
4410 + msg_context->u.bulk.status =
4411 + dummy_bulk_receive(instance, msg_context);
4412 + if (msg_context->u.bulk.status == 0)
4413 + return; /* successful bulk submission, bulk
4414 + * completion will trigger callback
4415 + */
4416 + } else {
4417 + /* do callback with empty buffer - not EOS though */
4418 + msg_context->u.bulk.status = 0;
4419 + msg_context->u.bulk.buffer_used = 0;
4420 + }
4421 + } else if (msg->u.buffer_from_host.payload_in_message == 0) {
4422 + /* data is not in message, queue a bulk receive */
4423 + msg_context->u.bulk.status =
4424 + bulk_receive(instance, msg, msg_context);
4425 + if (msg_context->u.bulk.status == 0)
4426 + return; /* successful bulk submission, bulk
4427 + * completion will trigger callback
4428 + */
4429 +
4430 + /* failed to submit buffer, this will end badly */
4431 + pr_err("error %d on bulk submission\n",
4432 + msg_context->u.bulk.status);
4433 +
4434 + } else if (msg->u.buffer_from_host.payload_in_message <=
4435 + MMAL_VC_SHORT_DATA) {
4436 + /* data payload within message */
4437 + msg_context->u.bulk.status = inline_receive(instance, msg,
4438 + msg_context);
4439 + } else {
4440 + pr_err("message with invalid short payload\n");
4441 +
4442 + /* signal error */
4443 + msg_context->u.bulk.status = -EINVAL;
4444 + msg_context->u.bulk.buffer_used =
4445 + msg->u.buffer_from_host.payload_in_message;
4446 + }
4447 +
4448 + /* replace the buffer header */
4449 + port_buffer_from_host(instance, msg_context->u.bulk.port);
4450 +
4451 + /* schedule the port callback */
4452 + schedule_work(&msg_context->u.bulk.work);
4453 +}
4454 +
4455 +static void bulk_receive_cb(struct vchiq_mmal_instance *instance,
4456 + struct mmal_msg_context *msg_context)
4457 +{
4458 + /* bulk receive operation complete */
4459 + mutex_unlock(&msg_context->u.bulk.instance->bulk_mutex);
4460 +
4461 + /* replace the buffer header */
4462 + port_buffer_from_host(msg_context->u.bulk.instance,
4463 + msg_context->u.bulk.port);
4464 +
4465 + msg_context->u.bulk.status = 0;
4466 +
4467 + /* schedule the port callback */
4468 + schedule_work(&msg_context->u.bulk.work);
4469 +}
4470 +
4471 +static void bulk_abort_cb(struct vchiq_mmal_instance *instance,
4472 + struct mmal_msg_context *msg_context)
4473 +{
4474 + pr_err("%s: bulk ABORTED msg_context:%p\n", __func__, msg_context);
4475 +
4476 + /* bulk receive operation complete */
4477 + mutex_unlock(&msg_context->u.bulk.instance->bulk_mutex);
4478 +
4479 + /* replace the buffer header */
4480 + port_buffer_from_host(msg_context->u.bulk.instance,
4481 + msg_context->u.bulk.port);
4482 +
4483 + msg_context->u.bulk.status = -EINTR;
4484 +
4485 + schedule_work(&msg_context->u.bulk.work);
4486 +}
4487 +
4488 +/* incoming event service callback */
4489 +static void service_callback(void *param,
4490 + const VCHI_CALLBACK_REASON_T reason,
4491 + void *bulk_ctx)
4492 +{
4493 + struct vchiq_mmal_instance *instance = param;
4494 + int status;
4495 + u32 msg_len;
4496 + struct mmal_msg *msg;
4497 + VCHI_HELD_MSG_T msg_handle;
4498 +
4499 + if (!instance) {
4500 + pr_err("Message callback passed NULL instance\n");
4501 + return;
4502 + }
4503 +
4504 + switch (reason) {
4505 + case VCHI_CALLBACK_MSG_AVAILABLE:
4506 + status = vchi_msg_hold(instance->handle, (void **)&msg,
4507 + &msg_len, VCHI_FLAGS_NONE, &msg_handle);
4508 + if (status) {
4509 + pr_err("Unable to dequeue a message (%d)\n", status);
4510 + break;
4511 + }
4512 +
4513 + DBG_DUMP_MSG(msg, msg_len, "<<< reply message");
4514 +
4515 + /* handling is different for buffer messages */
4516 + switch (msg->h.type) {
4517 +
4518 + case MMAL_MSG_TYPE_BUFFER_FROM_HOST:
4519 + vchi_held_msg_release(&msg_handle);
4520 + break;
4521 +
4522 + case MMAL_MSG_TYPE_EVENT_TO_HOST:
4523 + event_to_host_cb(instance, msg, msg_len);
4524 + vchi_held_msg_release(&msg_handle);
4525 +
4526 + break;
4527 +
4528 + case MMAL_MSG_TYPE_BUFFER_TO_HOST:
4529 + buffer_to_host_cb(instance, msg, msg_len);
4530 + vchi_held_msg_release(&msg_handle);
4531 + break;
4532 +
4533 + default:
4534 + /* messages dependant on header context to complete */
4535 +
4536 + /* todo: the msg.context really ought to be sanity
4537 + * checked before we just use it, afaict it comes back
4538 + * and is used raw from the videocore. Perhaps it
4539 + * should be verified the address lies in the kernel
4540 + * address space.
4541 + */
4542 + if (msg->h.context == NULL) {
4543 + pr_err("received message context was null!\n");
4544 + vchi_held_msg_release(&msg_handle);
4545 + break;
4546 + }
4547 +
4548 + /* fill in context values */
4549 + msg->h.context->u.sync.msg_handle = msg_handle;
4550 + msg->h.context->u.sync.msg = msg;
4551 + msg->h.context->u.sync.msg_len = msg_len;
4552 +
4553 + /* todo: should this check (completion_done()
4554 + * == 1) for no one waiting? or do we need a
4555 + * flag to tell us the completion has been
4556 + * interrupted so we can free the message and
4557 + * its context. This probably also solves the
4558 + * message arriving after interruption todo
4559 + * below
4560 + */
4561 +
4562 + /* complete message so caller knows it happened */
4563 + complete(&msg->h.context->u.sync.cmplt);
4564 + break;
4565 + }
4566 +
4567 + break;
4568 +
4569 + case VCHI_CALLBACK_BULK_RECEIVED:
4570 + bulk_receive_cb(instance, bulk_ctx);
4571 + break;
4572 +
4573 + case VCHI_CALLBACK_BULK_RECEIVE_ABORTED:
4574 + bulk_abort_cb(instance, bulk_ctx);
4575 + break;
4576 +
4577 + case VCHI_CALLBACK_SERVICE_CLOSED:
4578 + /* TODO: consider if this requires action if received when
4579 + * driver is not explicitly closing the service
4580 + */
4581 + break;
4582 +
4583 + default:
4584 + pr_err("Received unhandled message reason %d\n", reason);
4585 + break;
4586 + }
4587 +}
4588 +
4589 +static int send_synchronous_mmal_msg(struct vchiq_mmal_instance *instance,
4590 + struct mmal_msg *msg,
4591 + unsigned int payload_len,
4592 + struct mmal_msg **msg_out,
4593 + VCHI_HELD_MSG_T *msg_handle_out)
4594 +{
4595 + struct mmal_msg_context msg_context;
4596 + int ret;
4597 +
4598 + /* payload size must not cause message to exceed max size */
4599 + if (payload_len >
4600 + (MMAL_MSG_MAX_SIZE - sizeof(struct mmal_msg_header))) {
4601 + pr_err("payload length %d exceeds max:%d\n", payload_len,
4602 + (MMAL_MSG_MAX_SIZE - sizeof(struct mmal_msg_header)));
4603 + return -EINVAL;
4604 + }
4605 +
4606 + init_completion(&msg_context.u.sync.cmplt);
4607 +
4608 + msg->h.magic = MMAL_MAGIC;
4609 + msg->h.context = &msg_context;
4610 + msg->h.status = 0;
4611 +
4612 + DBG_DUMP_MSG(msg, (sizeof(struct mmal_msg_header) + payload_len),
4613 + ">>> sync message");
4614 +
4615 + vchi_service_use(instance->handle);
4616 +
4617 + ret = vchi_msg_queue(instance->handle,
4618 + msg,
4619 + sizeof(struct mmal_msg_header) + payload_len,
4620 + VCHI_FLAGS_BLOCK_UNTIL_QUEUED, NULL);
4621 +
4622 + vchi_service_release(instance->handle);
4623 +
4624 + if (ret) {
4625 + pr_err("error %d queuing message\n", ret);
4626 + return ret;
4627 + }
4628 +
4629 + ret = wait_for_completion_timeout(&msg_context.u.sync.cmplt, HZ);
4630 + if (ret <= 0) {
4631 + pr_err("error %d waiting for sync completion\n", ret);
4632 + if (ret == 0)
4633 + ret = -ETIME;
4634 + /* todo: what happens if the message arrives after aborting */
4635 + return ret;
4636 + }
4637 +
4638 + *msg_out = msg_context.u.sync.msg;
4639 + *msg_handle_out = msg_context.u.sync.msg_handle;
4640 +
4641 + return 0;
4642 +}
4643 +
4644 +static void dump_port_info(struct vchiq_mmal_port *port)
4645 +{
4646 + pr_debug("port handle:0x%x enabled:%d\n", port->handle, port->enabled);
4647 +
4648 + pr_debug("buffer minimum num:%d size:%d align:%d\n",
4649 + port->minimum_buffer.num,
4650 + port->minimum_buffer.size, port->minimum_buffer.alignment);
4651 +
4652 + pr_debug("buffer recommended num:%d size:%d align:%d\n",
4653 + port->recommended_buffer.num,
4654 + port->recommended_buffer.size,
4655 + port->recommended_buffer.alignment);
4656 +
4657 + pr_debug("buffer current values num:%d size:%d align:%d\n",
4658 + port->current_buffer.num,
4659 + port->current_buffer.size, port->current_buffer.alignment);
4660 +
4661 + pr_debug("elementry stream: type:%d encoding:0x%x varient:0x%x\n",
4662 + port->format.type,
4663 + port->format.encoding, port->format.encoding_variant);
4664 +
4665 + pr_debug(" bitrate:%d flags:0x%x\n",
4666 + port->format.bitrate, port->format.flags);
4667 +
4668 + if (port->format.type == MMAL_ES_TYPE_VIDEO) {
4669 + pr_debug
4670 + ("es video format: width:%d height:%d colourspace:0x%x\n",
4671 + port->es.video.width, port->es.video.height,
4672 + port->es.video.color_space);
4673 +
4674 + pr_debug(" : crop xywh %d,%d,%d,%d\n",
4675 + port->es.video.crop.x,
4676 + port->es.video.crop.y,
4677 + port->es.video.crop.width, port->es.video.crop.height);
4678 + pr_debug(" : framerate %d/%d aspect %d/%d\n",
4679 + port->es.video.frame_rate.num,
4680 + port->es.video.frame_rate.den,
4681 + port->es.video.par.num, port->es.video.par.den);
4682 + }
4683 +}
4684 +
4685 +static void port_to_mmal_msg(struct vchiq_mmal_port *port, struct mmal_port *p)
4686 +{
4687 +
4688 + /* todo do readonly fields need setting at all? */
4689 + p->type = port->type;
4690 + p->index = port->index;
4691 + p->index_all = 0;
4692 + p->is_enabled = port->enabled;
4693 + p->buffer_num_min = port->minimum_buffer.num;
4694 + p->buffer_size_min = port->minimum_buffer.size;
4695 + p->buffer_alignment_min = port->minimum_buffer.alignment;
4696 + p->buffer_num_recommended = port->recommended_buffer.num;
4697 + p->buffer_size_recommended = port->recommended_buffer.size;
4698 +
4699 + /* only three writable fields in a port */
4700 + p->buffer_num = port->current_buffer.num;
4701 + p->buffer_size = port->current_buffer.size;
4702 + p->userdata = port;
4703 +}
4704 +
4705 +static int port_info_set(struct vchiq_mmal_instance *instance,
4706 + struct vchiq_mmal_port *port)
4707 +{
4708 + int ret;
4709 + struct mmal_msg m;
4710 + struct mmal_msg *rmsg;
4711 + VCHI_HELD_MSG_T rmsg_handle;
4712 +
4713 + pr_debug("setting port info port %p\n", port);
4714 + if (!port)
4715 + return -1;
4716 + dump_port_info(port);
4717 +
4718 + m.h.type = MMAL_MSG_TYPE_PORT_INFO_SET;
4719 +
4720 + m.u.port_info_set.component_handle = port->component->handle;
4721 + m.u.port_info_set.port_type = port->type;
4722 + m.u.port_info_set.port_index = port->index;
4723 +
4724 + port_to_mmal_msg(port, &m.u.port_info_set.port);
4725 +
4726 + /* elementry stream format setup */
4727 + m.u.port_info_set.format.type = port->format.type;
4728 + m.u.port_info_set.format.encoding = port->format.encoding;
4729 + m.u.port_info_set.format.encoding_variant =
4730 + port->format.encoding_variant;
4731 + m.u.port_info_set.format.bitrate = port->format.bitrate;
4732 + m.u.port_info_set.format.flags = port->format.flags;
4733 +
4734 + memcpy(&m.u.port_info_set.es, &port->es,
4735 + sizeof(union mmal_es_specific_format));
4736 +
4737 + m.u.port_info_set.format.extradata_size = port->format.extradata_size;
4738 + memcpy(rmsg->u.port_info_set.extradata, port->format.extradata,
4739 + port->format.extradata_size);
4740 +
4741 + ret = send_synchronous_mmal_msg(instance, &m,
4742 + sizeof(m.u.port_info_set),
4743 + &rmsg, &rmsg_handle);
4744 + if (ret)
4745 + return ret;
4746 +
4747 + if (rmsg->h.type != MMAL_MSG_TYPE_PORT_INFO_SET) {
4748 + /* got an unexpected message type in reply */
4749 + ret = -EINVAL;
4750 + goto release_msg;
4751 + }
4752 +
4753 + /* return operation status */
4754 + ret = -rmsg->u.port_info_get_reply.status;
4755 +
4756 + pr_debug("%s:result:%d component:0x%x port:%d\n", __func__, ret,
4757 + port->component->handle, port->handle);
4758 +
4759 +release_msg:
4760 + vchi_held_msg_release(&rmsg_handle);
4761 +
4762 + return ret;
4763 +
4764 +}
4765 +
4766 +/* use port info get message to retrive port information */
4767 +static int port_info_get(struct vchiq_mmal_instance *instance,
4768 + struct vchiq_mmal_port *port)
4769 +{
4770 + int ret;
4771 + struct mmal_msg m;
4772 + struct mmal_msg *rmsg;
4773 + VCHI_HELD_MSG_T rmsg_handle;
4774 +
4775 + /* port info time */
4776 + m.h.type = MMAL_MSG_TYPE_PORT_INFO_GET;
4777 + m.u.port_info_get.component_handle = port->component->handle;
4778 + m.u.port_info_get.port_type = port->type;
4779 + m.u.port_info_get.index = port->index;
4780 +
4781 + ret = send_synchronous_mmal_msg(instance, &m,
4782 + sizeof(m.u.port_info_get),
4783 + &rmsg, &rmsg_handle);
4784 + if (ret)
4785 + return ret;
4786 +
4787 + if (rmsg->h.type != MMAL_MSG_TYPE_PORT_INFO_GET) {
4788 + /* got an unexpected message type in reply */
4789 + ret = -EINVAL;
4790 + goto release_msg;
4791 + }
4792 +
4793 + /* return operation status */
4794 + ret = -rmsg->u.port_info_get_reply.status;
4795 + if (ret != MMAL_MSG_STATUS_SUCCESS)
4796 + goto release_msg;
4797 +
4798 + if (rmsg->u.port_info_get_reply.port.is_enabled == 0)
4799 + port->enabled = false;
4800 + else
4801 + port->enabled = true;
4802 +
4803 + /* copy the values out of the message */
4804 + port->handle = rmsg->u.port_info_get_reply.port_handle;
4805 +
4806 + /* port type and index cached to use on port info set becuase
4807 + * it does not use a port handle
4808 + */
4809 + port->type = rmsg->u.port_info_get_reply.port_type;
4810 + port->index = rmsg->u.port_info_get_reply.port_index;
4811 +
4812 + port->minimum_buffer.num =
4813 + rmsg->u.port_info_get_reply.port.buffer_num_min;
4814 + port->minimum_buffer.size =
4815 + rmsg->u.port_info_get_reply.port.buffer_size_min;
4816 + port->minimum_buffer.alignment =
4817 + rmsg->u.port_info_get_reply.port.buffer_alignment_min;
4818 +
4819 + port->recommended_buffer.alignment =
4820 + rmsg->u.port_info_get_reply.port.buffer_alignment_min;
4821 + port->recommended_buffer.num =
4822 + rmsg->u.port_info_get_reply.port.buffer_num_recommended;
4823 +
4824 + port->current_buffer.num = rmsg->u.port_info_get_reply.port.buffer_num;
4825 + port->current_buffer.size =
4826 + rmsg->u.port_info_get_reply.port.buffer_size;
4827 +
4828 + /* stream format */
4829 + port->format.type = rmsg->u.port_info_get_reply.format.type;
4830 + port->format.encoding = rmsg->u.port_info_get_reply.format.encoding;
4831 + port->format.encoding_variant =
4832 + rmsg->u.port_info_get_reply.format.encoding_variant;
4833 + port->format.bitrate = rmsg->u.port_info_get_reply.format.bitrate;
4834 + port->format.flags = rmsg->u.port_info_get_reply.format.flags;
4835 +
4836 + /* elementry stream format */
4837 + memcpy(&port->es,
4838 + &rmsg->u.port_info_get_reply.es,
4839 + sizeof(union mmal_es_specific_format));
4840 + port->format.es = &port->es;
4841 +
4842 + port->format.extradata_size =
4843 + rmsg->u.port_info_get_reply.format.extradata_size;
4844 + memcpy(port->format.extradata,
4845 + rmsg->u.port_info_get_reply.extradata,
4846 + port->format.extradata_size);
4847 +
4848 + pr_debug("received port info\n");
4849 + dump_port_info(port);
4850 +
4851 +release_msg:
4852 +
4853 + pr_debug("%s:result:%d component:0x%x port:%d\n",
4854 + __func__, ret, port->component->handle, port->handle);
4855 +
4856 + vchi_held_msg_release(&rmsg_handle);
4857 +
4858 + return ret;
4859 +}
4860 +
4861 +/* create comonent on vc */
4862 +static int create_component(struct vchiq_mmal_instance *instance,
4863 + struct vchiq_mmal_component *component,
4864 + const char *name)
4865 +{
4866 + int ret;
4867 + struct mmal_msg m;
4868 + struct mmal_msg *rmsg;
4869 + VCHI_HELD_MSG_T rmsg_handle;
4870 +
4871 + /* build component create message */
4872 + m.h.type = MMAL_MSG_TYPE_COMPONENT_CREATE;
4873 + m.u.component_create.client_component = component;
4874 + strncpy(m.u.component_create.name, name,
4875 + sizeof(m.u.component_create.name));
4876 +
4877 + ret = send_synchronous_mmal_msg(instance, &m,
4878 + sizeof(m.u.component_create),
4879 + &rmsg, &rmsg_handle);
4880 + if (ret)
4881 + return ret;
4882 +
4883 + if (rmsg->h.type != m.h.type) {
4884 + /* got an unexpected message type in reply */
4885 + ret = -EINVAL;
4886 + goto release_msg;
4887 + }
4888 +
4889 + ret = -rmsg->u.component_create_reply.status;
4890 + if (ret != MMAL_MSG_STATUS_SUCCESS)
4891 + goto release_msg;
4892 +
4893 + /* a valid component response received */
4894 + component->handle = rmsg->u.component_create_reply.component_handle;
4895 + component->inputs = rmsg->u.component_create_reply.input_num;
4896 + component->outputs = rmsg->u.component_create_reply.output_num;
4897 + component->clocks = rmsg->u.component_create_reply.clock_num;
4898 +
4899 + pr_debug("Component handle:0x%x in:%d out:%d clock:%d\n",
4900 + component->handle,
4901 + component->inputs, component->outputs, component->clocks);
4902 +
4903 +release_msg:
4904 + vchi_held_msg_release(&rmsg_handle);
4905 +
4906 + return ret;
4907 +}
4908 +
4909 +/* destroys a component on vc */
4910 +static int destroy_component(struct vchiq_mmal_instance *instance,
4911 + struct vchiq_mmal_component *component)
4912 +{
4913 + int ret;
4914 + struct mmal_msg m;
4915 + struct mmal_msg *rmsg;
4916 + VCHI_HELD_MSG_T rmsg_handle;
4917 +
4918 + m.h.type = MMAL_MSG_TYPE_COMPONENT_DESTROY;
4919 + m.u.component_destroy.component_handle = component->handle;
4920 +
4921 + ret = send_synchronous_mmal_msg(instance, &m,
4922 + sizeof(m.u.component_destroy),
4923 + &rmsg, &rmsg_handle);
4924 + if (ret)
4925 + return ret;
4926 +
4927 + if (rmsg->h.type != m.h.type) {
4928 + /* got an unexpected message type in reply */
4929 + ret = -EINVAL;
4930 + goto release_msg;
4931 + }
4932 +
4933 + ret = -rmsg->u.component_destroy_reply.status;
4934 +
4935 +release_msg:
4936 +
4937 + vchi_held_msg_release(&rmsg_handle);
4938 +
4939 + return ret;
4940 +}
4941 +
4942 +/* enable a component on vc */
4943 +static int enable_component(struct vchiq_mmal_instance *instance,
4944 + struct vchiq_mmal_component *component)
4945 +{
4946 + int ret;
4947 + struct mmal_msg m;
4948 + struct mmal_msg *rmsg;
4949 + VCHI_HELD_MSG_T rmsg_handle;
4950 +
4951 + m.h.type = MMAL_MSG_TYPE_COMPONENT_ENABLE;
4952 + m.u.component_enable.component_handle = component->handle;
4953 +
4954 + ret = send_synchronous_mmal_msg(instance, &m,
4955 + sizeof(m.u.component_enable),
4956 + &rmsg, &rmsg_handle);
4957 + if (ret)
4958 + return ret;
4959 +
4960 + if (rmsg->h.type != m.h.type) {
4961 + /* got an unexpected message type in reply */
4962 + ret = -EINVAL;
4963 + goto release_msg;
4964 + }
4965 +
4966 + ret = -rmsg->u.component_enable_reply.status;
4967 +
4968 +release_msg:
4969 + vchi_held_msg_release(&rmsg_handle);
4970 +
4971 + return ret;
4972 +}
4973 +
4974 +/* disable a component on vc */
4975 +static int disable_component(struct vchiq_mmal_instance *instance,
4976 + struct vchiq_mmal_component *component)
4977 +{
4978 + int ret;
4979 + struct mmal_msg m;
4980 + struct mmal_msg *rmsg;
4981 + VCHI_HELD_MSG_T rmsg_handle;
4982 +
4983 + m.h.type = MMAL_MSG_TYPE_COMPONENT_DISABLE;
4984 + m.u.component_disable.component_handle = component->handle;
4985 +
4986 + ret = send_synchronous_mmal_msg(instance, &m,
4987 + sizeof(m.u.component_disable),
4988 + &rmsg, &rmsg_handle);
4989 + if (ret)
4990 + return ret;
4991 +
4992 + if (rmsg->h.type != m.h.type) {
4993 + /* got an unexpected message type in reply */
4994 + ret = -EINVAL;
4995 + goto release_msg;
4996 + }
4997 +
4998 + ret = -rmsg->u.component_disable_reply.status;
4999 +
5000 +release_msg:
5001 +
5002 + vchi_held_msg_release(&rmsg_handle);
5003 +
5004 + return ret;
5005 +}
5006 +
5007 +/* get version of mmal implementation */
5008 +static int get_version(struct vchiq_mmal_instance *instance,
5009 + u32 *major_out, u32 *minor_out)
5010 +{
5011 + int ret;
5012 + struct mmal_msg m;
5013 + struct mmal_msg *rmsg;
5014 + VCHI_HELD_MSG_T rmsg_handle;
5015 +
5016 + m.h.type = MMAL_MSG_TYPE_GET_VERSION;
5017 +
5018 + ret = send_synchronous_mmal_msg(instance, &m,
5019 + sizeof(m.u.version),
5020 + &rmsg, &rmsg_handle);
5021 + if (ret)
5022 + return ret;
5023 +
5024 + if (rmsg->h.type != m.h.type) {
5025 + /* got an unexpected message type in reply */
5026 + ret = -EINVAL;
5027 + goto release_msg;
5028 + }
5029 +
5030 + *major_out = rmsg->u.version.major;
5031 + *minor_out = rmsg->u.version.minor;
5032 +
5033 +release_msg:
5034 + vchi_held_msg_release(&rmsg_handle);
5035 +
5036 + return ret;
5037 +}
5038 +
5039 +/* do a port action with a port as a parameter */
5040 +static int port_action_port(struct vchiq_mmal_instance *instance,
5041 + struct vchiq_mmal_port *port,
5042 + enum mmal_msg_port_action_type action_type)
5043 +{
5044 + int ret;
5045 + struct mmal_msg m;
5046 + struct mmal_msg *rmsg;
5047 + VCHI_HELD_MSG_T rmsg_handle;
5048 +
5049 + m.h.type = MMAL_MSG_TYPE_PORT_ACTION;
5050 + m.u.port_action_port.component_handle = port->component->handle;
5051 + m.u.port_action_port.port_handle = port->handle;
5052 + m.u.port_action_port.action = action_type;
5053 +
5054 + port_to_mmal_msg(port, &m.u.port_action_port.port);
5055 +
5056 + ret = send_synchronous_mmal_msg(instance, &m,
5057 + sizeof(m.u.port_action_port),
5058 + &rmsg, &rmsg_handle);
5059 + if (ret)
5060 + return ret;
5061 +
5062 + if (rmsg->h.type != MMAL_MSG_TYPE_PORT_ACTION) {
5063 + /* got an unexpected message type in reply */
5064 + ret = -EINVAL;
5065 + goto release_msg;
5066 + }
5067 +
5068 + ret = -rmsg->u.port_action_reply.status;
5069 +
5070 + pr_debug("%s:result:%d component:0x%x port:%d action:%s(%d)\n",
5071 + __func__,
5072 + ret, port->component->handle, port->handle,
5073 + port_action_type_names[action_type], action_type);
5074 +
5075 +release_msg:
5076 + vchi_held_msg_release(&rmsg_handle);
5077 +
5078 + return ret;
5079 +}
5080 +
5081 +/* do a port action with handles as parameters */
5082 +static int port_action_handle(struct vchiq_mmal_instance *instance,
5083 + struct vchiq_mmal_port *port,
5084 + enum mmal_msg_port_action_type action_type,
5085 + u32 connect_component_handle,
5086 + u32 connect_port_handle)
5087 +{
5088 + int ret;
5089 + struct mmal_msg m;
5090 + struct mmal_msg *rmsg;
5091 + VCHI_HELD_MSG_T rmsg_handle;
5092 +
5093 + m.h.type = MMAL_MSG_TYPE_PORT_ACTION;
5094 +
5095 + m.u.port_action_handle.component_handle = port->component->handle;
5096 + m.u.port_action_handle.port_handle = port->handle;
5097 + m.u.port_action_handle.action = action_type;
5098 +
5099 + m.u.port_action_handle.connect_component_handle =
5100 + connect_component_handle;
5101 + m.u.port_action_handle.connect_port_handle = connect_port_handle;
5102 +
5103 + ret = send_synchronous_mmal_msg(instance, &m,
5104 + sizeof(m.u.port_action_handle),
5105 + &rmsg, &rmsg_handle);
5106 + if (ret)
5107 + return ret;
5108 +
5109 + if (rmsg->h.type != MMAL_MSG_TYPE_PORT_ACTION) {
5110 + /* got an unexpected message type in reply */
5111 + ret = -EINVAL;
5112 + goto release_msg;
5113 + }
5114 +
5115 + ret = -rmsg->u.port_action_reply.status;
5116 +
5117 + pr_debug("%s:result:%d component:0x%x port:%d action:%s(%d)" \
5118 + " connect component:0x%x connect port:%d\n",
5119 + __func__,
5120 + ret, port->component->handle, port->handle,
5121 + port_action_type_names[action_type],
5122 + action_type, connect_component_handle, connect_port_handle);
5123 +
5124 +release_msg:
5125 + vchi_held_msg_release(&rmsg_handle);
5126 +
5127 + return ret;
5128 +}
5129 +
5130 +static int port_parameter_set(struct vchiq_mmal_instance *instance,
5131 + struct vchiq_mmal_port *port,
5132 + u32 parameter_id, void *value, u32 value_size)
5133 +{
5134 + int ret;
5135 + struct mmal_msg m;
5136 + struct mmal_msg *rmsg;
5137 + VCHI_HELD_MSG_T rmsg_handle;
5138 +
5139 + m.h.type = MMAL_MSG_TYPE_PORT_PARAMETER_SET;
5140 +
5141 + m.u.port_parameter_set.component_handle = port->component->handle;
5142 + m.u.port_parameter_set.port_handle = port->handle;
5143 + m.u.port_parameter_set.id = parameter_id;
5144 + m.u.port_parameter_set.size = (2 * sizeof(u32)) + value_size;
5145 + memcpy(&m.u.port_parameter_set.value, value, value_size);
5146 +
5147 + ret = send_synchronous_mmal_msg(instance, &m,
5148 + (4 * sizeof(u32)) + value_size,
5149 + &rmsg, &rmsg_handle);
5150 + if (ret)
5151 + return ret;
5152 +
5153 + if (rmsg->h.type != MMAL_MSG_TYPE_PORT_PARAMETER_SET) {
5154 + /* got an unexpected message type in reply */
5155 + ret = -EINVAL;
5156 + goto release_msg;
5157 + }
5158 +
5159 + ret = -rmsg->u.port_parameter_set_reply.status;
5160 +
5161 + pr_debug("%s:result:%d component:0x%x port:%d parameter:%d\n",
5162 + __func__,
5163 + ret, port->component->handle, port->handle, parameter_id);
5164 +
5165 +release_msg:
5166 + vchi_held_msg_release(&rmsg_handle);
5167 +
5168 + return ret;
5169 +}
5170 +
5171 +static int port_parameter_get(struct vchiq_mmal_instance *instance,
5172 + struct vchiq_mmal_port *port,
5173 + u32 parameter_id, void *value, u32 *value_size)
5174 +{
5175 + int ret;
5176 + struct mmal_msg m;
5177 + struct mmal_msg *rmsg;
5178 + VCHI_HELD_MSG_T rmsg_handle;
5179 +
5180 + m.h.type = MMAL_MSG_TYPE_PORT_PARAMETER_GET;
5181 +
5182 + m.u.port_parameter_get.component_handle = port->component->handle;
5183 + m.u.port_parameter_get.port_handle = port->handle;
5184 + m.u.port_parameter_get.id = parameter_id;
5185 + m.u.port_parameter_get.size = (2 * sizeof(u32)) + *value_size;
5186 +
5187 + ret = send_synchronous_mmal_msg(instance, &m,
5188 + sizeof(struct
5189 + mmal_msg_port_parameter_get),
5190 + &rmsg, &rmsg_handle);
5191 + if (ret)
5192 + return ret;
5193 +
5194 + if (rmsg->h.type != MMAL_MSG_TYPE_PORT_PARAMETER_GET) {
5195 + /* got an unexpected message type in reply */
5196 + pr_err("Incorrect reply type %d\n", rmsg->h.type);
5197 + ret = -EINVAL;
5198 + goto release_msg;
5199 + }
5200 +
5201 + ret = -rmsg->u.port_parameter_get_reply.status;
5202 + if (ret) {
5203 + /* Copy only as much as we have space for
5204 + * but report true size of parameter
5205 + */
5206 + memcpy(value, &rmsg->u.port_parameter_get_reply.value,
5207 + *value_size);
5208 + *value_size = rmsg->u.port_parameter_get_reply.size;
5209 + } else
5210 + memcpy(value, &rmsg->u.port_parameter_get_reply.value,
5211 + rmsg->u.port_parameter_get_reply.size);
5212 +
5213 + pr_info("%s:result:%d component:0x%x port:%d parameter:%d\n", __func__,
5214 + ret, port->component->handle, port->handle, parameter_id);
5215 +
5216 +release_msg:
5217 + vchi_held_msg_release(&rmsg_handle);
5218 +
5219 + return ret;
5220 +}
5221 +
5222 +/* disables a port and drains buffers from it */
5223 +static int port_disable(struct vchiq_mmal_instance *instance,
5224 + struct vchiq_mmal_port *port)
5225 +{
5226 + int ret;
5227 + struct list_head *q, *buf_head;
5228 + unsigned long flags = 0;
5229 +
5230 + if (!port->enabled)
5231 + return 0;
5232 +
5233 + port->enabled = false;
5234 +
5235 + ret = port_action_port(instance, port,
5236 + MMAL_MSG_PORT_ACTION_TYPE_DISABLE);
5237 + if (ret == 0) {
5238 +
5239 + /* drain all queued buffers on port */
5240 + spin_lock_irqsave(&port->slock, flags);
5241 +
5242 + list_for_each_safe(buf_head, q, &port->buffers) {
5243 + struct mmal_buffer *mmalbuf;
5244 + mmalbuf = list_entry(buf_head, struct mmal_buffer,
5245 + list);
5246 + list_del(buf_head);
5247 + if (port->buffer_cb)
5248 + port->buffer_cb(instance,
5249 + port, 0, mmalbuf, 0, 0,
5250 + MMAL_TIME_UNKNOWN,
5251 + MMAL_TIME_UNKNOWN);
5252 + }
5253 +
5254 + spin_unlock_irqrestore(&port->slock, flags);
5255 +
5256 + ret = port_info_get(instance, port);
5257 + }
5258 +
5259 + return ret;
5260 +}
5261 +
5262 +/* enable a port */
5263 +static int port_enable(struct vchiq_mmal_instance *instance,
5264 + struct vchiq_mmal_port *port)
5265 +{
5266 + unsigned int hdr_count;
5267 + struct list_head *buf_head;
5268 + int ret;
5269 +
5270 + if (port->enabled)
5271 + return 0;
5272 +
5273 + /* ensure there are enough buffers queued to cover the buffer headers */
5274 + if (port->buffer_cb != NULL) {
5275 + hdr_count = 0;
5276 + list_for_each(buf_head, &port->buffers) {
5277 + hdr_count++;
5278 + }
5279 + if (hdr_count < port->current_buffer.num)
5280 + return -ENOSPC;
5281 + }
5282 +
5283 + ret = port_action_port(instance, port,
5284 + MMAL_MSG_PORT_ACTION_TYPE_ENABLE);
5285 + if (ret)
5286 + goto done;
5287 +
5288 + port->enabled = true;
5289 +
5290 + if (port->buffer_cb) {
5291 + /* send buffer headers to videocore */
5292 + hdr_count = 1;
5293 + list_for_each(buf_head, &port->buffers) {
5294 + struct mmal_buffer *mmalbuf;
5295 + mmalbuf = list_entry(buf_head, struct mmal_buffer,
5296 + list);
5297 + ret = buffer_from_host(instance, port, mmalbuf);
5298 + if (ret)
5299 + goto done;
5300 +
5301 + hdr_count++;
5302 + if (hdr_count > port->current_buffer.num)
5303 + break;
5304 + }
5305 + }
5306 +
5307 + ret = port_info_get(instance, port);
5308 +
5309 +done:
5310 + return ret;
5311 +}
5312 +
5313 +/* ------------------------------------------------------------------
5314 + * Exported API
5315 + *------------------------------------------------------------------*/
5316 +
5317 +int vchiq_mmal_port_set_format(struct vchiq_mmal_instance *instance,
5318 + struct vchiq_mmal_port *port)
5319 +{
5320 + int ret;
5321 +
5322 + if (mutex_lock_interruptible(&instance->vchiq_mutex))
5323 + return -EINTR;
5324 +
5325 + ret = port_info_set(instance, port);
5326 + if (ret)
5327 + goto release_unlock;
5328 +
5329 + /* read what has actually been set */
5330 + ret = port_info_get(instance, port);
5331 +
5332 +release_unlock:
5333 + mutex_unlock(&instance->vchiq_mutex);
5334 +
5335 + return ret;
5336 +
5337 +}
5338 +
5339 +int vchiq_mmal_port_parameter_set(struct vchiq_mmal_instance *instance,
5340 + struct vchiq_mmal_port *port,
5341 + u32 parameter, void *value, u32 value_size)
5342 +{
5343 + int ret;
5344 +
5345 + if (mutex_lock_interruptible(&instance->vchiq_mutex))
5346 + return -EINTR;
5347 +
5348 + ret = port_parameter_set(instance, port, parameter, value, value_size);
5349 +
5350 + mutex_unlock(&instance->vchiq_mutex);
5351 +
5352 + return ret;
5353 +}
5354 +
5355 +int vchiq_mmal_port_parameter_get(struct vchiq_mmal_instance *instance,
5356 + struct vchiq_mmal_port *port,
5357 + u32 parameter, void *value, u32 *value_size)
5358 +{
5359 + int ret;
5360 +
5361 + if (mutex_lock_interruptible(&instance->vchiq_mutex))
5362 + return -EINTR;
5363 +
5364 + ret = port_parameter_get(instance, port, parameter, value, value_size);
5365 +
5366 + mutex_unlock(&instance->vchiq_mutex);
5367 +
5368 + return ret;
5369 +}
5370 +
5371 +/* enable a port
5372 + *
5373 + * enables a port and queues buffers for satisfying callbacks if we
5374 + * provide a callback handler
5375 + */
5376 +int vchiq_mmal_port_enable(struct vchiq_mmal_instance *instance,
5377 + struct vchiq_mmal_port *port,
5378 + vchiq_mmal_buffer_cb buffer_cb)
5379 +{
5380 + int ret;
5381 +
5382 + if (mutex_lock_interruptible(&instance->vchiq_mutex))
5383 + return -EINTR;
5384 +
5385 + /* already enabled - noop */
5386 + if (port->enabled) {
5387 + ret = 0;
5388 + goto unlock;
5389 + }
5390 +
5391 + port->buffer_cb = buffer_cb;
5392 +
5393 + ret = port_enable(instance, port);
5394 +
5395 +unlock:
5396 + mutex_unlock(&instance->vchiq_mutex);
5397 +
5398 + return ret;
5399 +}
5400 +
5401 +int vchiq_mmal_port_disable(struct vchiq_mmal_instance *instance,
5402 + struct vchiq_mmal_port *port)
5403 +{
5404 + int ret;
5405 +
5406 + if (mutex_lock_interruptible(&instance->vchiq_mutex))
5407 + return -EINTR;
5408 +
5409 + if (!port->enabled) {
5410 + mutex_unlock(&instance->vchiq_mutex);
5411 + return 0;
5412 + }
5413 +
5414 + ret = port_disable(instance, port);
5415 +
5416 + mutex_unlock(&instance->vchiq_mutex);
5417 +
5418 + return ret;
5419 +}
5420 +
5421 +/* ports will be connected in a tunneled manner so data buffers
5422 + * are not handled by client.
5423 + */
5424 +int vchiq_mmal_port_connect_tunnel(struct vchiq_mmal_instance *instance,
5425 + struct vchiq_mmal_port *src,
5426 + struct vchiq_mmal_port *dst)
5427 +{
5428 + int ret;
5429 +
5430 + if (mutex_lock_interruptible(&instance->vchiq_mutex))
5431 + return -EINTR;
5432 +
5433 + /* disconnect ports if connected */
5434 + if (src->connected != NULL) {
5435 + ret = port_disable(instance, src);
5436 + if (ret) {
5437 + pr_err("failed disabling src port(%d)\n", ret);
5438 + goto release_unlock;
5439 + }
5440 +
5441 + /* do not need to disable the destination port as they
5442 + * are connected and it is done automatically
5443 + */
5444 +
5445 + ret = port_action_handle(instance, src,
5446 + MMAL_MSG_PORT_ACTION_TYPE_DISCONNECT,
5447 + src->connected->component->handle,
5448 + src->connected->handle);
5449 + if (ret < 0) {
5450 + pr_err("failed disconnecting src port\n");
5451 + goto release_unlock;
5452 + }
5453 + src->connected->enabled = false;
5454 + src->connected = NULL;
5455 + }
5456 +
5457 + if (dst == NULL) {
5458 + /* do not make new connection */
5459 + ret = 0;
5460 + pr_debug("not making new connection\n");
5461 + goto release_unlock;
5462 + }
5463 +
5464 + /* copy src port format to dst */
5465 + dst->format.encoding = src->format.encoding;
5466 + dst->es.video.width = src->es.video.width;
5467 + dst->es.video.height = src->es.video.height;
5468 + dst->es.video.crop.x = src->es.video.crop.x;
5469 + dst->es.video.crop.y = src->es.video.crop.y;
5470 + dst->es.video.crop.width = src->es.video.crop.width;
5471 + dst->es.video.crop.height = src->es.video.crop.height;
5472 + dst->es.video.frame_rate.num = src->es.video.frame_rate.num;
5473 + dst->es.video.frame_rate.den = src->es.video.frame_rate.den;
5474 +
5475 + /* set new format */
5476 + ret = port_info_set(instance, dst);
5477 + if (ret) {
5478 + pr_debug("setting port info failed\n");
5479 + goto release_unlock;
5480 + }
5481 +
5482 + /* read what has actually been set */
5483 + ret = port_info_get(instance, dst);
5484 + if (ret) {
5485 + pr_debug("read back port info failed\n");
5486 + goto release_unlock;
5487 + }
5488 +
5489 + /* connect two ports together */
5490 + ret = port_action_handle(instance, src,
5491 + MMAL_MSG_PORT_ACTION_TYPE_CONNECT,
5492 + dst->component->handle, dst->handle);
5493 + if (ret < 0) {
5494 + pr_debug("connecting port %d:%d to %d:%d failed\n",
5495 + src->component->handle, src->handle,
5496 + dst->component->handle, dst->handle);
5497 + goto release_unlock;
5498 + }
5499 + src->connected = dst;
5500 +
5501 +release_unlock:
5502 +
5503 + mutex_unlock(&instance->vchiq_mutex);
5504 +
5505 + return ret;
5506 +}
5507 +
5508 +int vchiq_mmal_submit_buffer(struct vchiq_mmal_instance *instance,
5509 + struct vchiq_mmal_port *port,
5510 + struct mmal_buffer *buffer)
5511 +{
5512 + unsigned long flags = 0;
5513 +
5514 + spin_lock_irqsave(&port->slock, flags);
5515 + list_add_tail(&buffer->list, &port->buffers);
5516 + spin_unlock_irqrestore(&port->slock, flags);
5517 +
5518 + /* the port previously underflowed because it was missing a
5519 + * mmal_buffer which has just been added, submit that buffer
5520 + * to the mmal service.
5521 + */
5522 + if (port->buffer_underflow) {
5523 + port_buffer_from_host(instance, port);
5524 + port->buffer_underflow--;
5525 + }
5526 +
5527 + return 0;
5528 +}
5529 +
5530 +/* Initialise a mmal component and its ports
5531 + *
5532 + */
5533 +int vchiq_mmal_component_init(struct vchiq_mmal_instance *instance,
5534 + const char *name,
5535 + struct vchiq_mmal_component **component_out)
5536 +{
5537 + int ret;
5538 + int idx; /* port index */
5539 + struct vchiq_mmal_component *component;
5540 +
5541 + if (mutex_lock_interruptible(&instance->vchiq_mutex))
5542 + return -EINTR;
5543 +
5544 + if (instance->component_idx == VCHIQ_MMAL_MAX_COMPONENTS) {
5545 + ret = -EINVAL; /* todo is this correct error? */
5546 + goto unlock;
5547 + }
5548 +
5549 + component = &instance->component[instance->component_idx];
5550 +
5551 + ret = create_component(instance, component, name);
5552 + if (ret < 0)
5553 + goto unlock;
5554 +
5555 + /* ports info needs gathering */
5556 + component->control.type = MMAL_PORT_TYPE_CONTROL;
5557 + component->control.index = 0;
5558 + component->control.component = component;
5559 + spin_lock_init(&component->control.slock);
5560 + INIT_LIST_HEAD(&component->control.buffers);
5561 + ret = port_info_get(instance, &component->control);
5562 + if (ret < 0)
5563 + goto release_component;
5564 +
5565 + for (idx = 0; idx < component->inputs; idx++) {
5566 + component->input[idx].type = MMAL_PORT_TYPE_INPUT;
5567 + component->input[idx].index = idx;
5568 + component->input[idx].component = component;
5569 + spin_lock_init(&component->input[idx].slock);
5570 + INIT_LIST_HEAD(&component->input[idx].buffers);
5571 + ret = port_info_get(instance, &component->input[idx]);
5572 + if (ret < 0)
5573 + goto release_component;
5574 + }
5575 +
5576 + for (idx = 0; idx < component->outputs; idx++) {
5577 + component->output[idx].type = MMAL_PORT_TYPE_OUTPUT;
5578 + component->output[idx].index = idx;
5579 + component->output[idx].component = component;
5580 + spin_lock_init(&component->output[idx].slock);
5581 + INIT_LIST_HEAD(&component->output[idx].buffers);
5582 + ret = port_info_get(instance, &component->output[idx]);
5583 + if (ret < 0)
5584 + goto release_component;
5585 + }
5586 +
5587 + for (idx = 0; idx < component->clocks; idx++) {
5588 + component->clock[idx].type = MMAL_PORT_TYPE_CLOCK;
5589 + component->clock[idx].index = idx;
5590 + component->clock[idx].component = component;
5591 + spin_lock_init(&component->clock[idx].slock);
5592 + INIT_LIST_HEAD(&component->clock[idx].buffers);
5593 + ret = port_info_get(instance, &component->clock[idx]);
5594 + if (ret < 0)
5595 + goto release_component;
5596 + }
5597 +
5598 + instance->component_idx++;
5599 +
5600 + *component_out = component;
5601 +
5602 + mutex_unlock(&instance->vchiq_mutex);
5603 +
5604 + return 0;
5605 +
5606 +release_component:
5607 + destroy_component(instance, component);
5608 +unlock:
5609 + mutex_unlock(&instance->vchiq_mutex);
5610 +
5611 + return ret;
5612 +}
5613 +
5614 +/*
5615 + * cause a mmal component to be destroyed
5616 + */
5617 +int vchiq_mmal_component_finalise(struct vchiq_mmal_instance *instance,
5618 + struct vchiq_mmal_component *component)
5619 +{
5620 + int ret;
5621 +
5622 + if (mutex_lock_interruptible(&instance->vchiq_mutex))
5623 + return -EINTR;
5624 +
5625 + if (component->enabled)
5626 + ret = disable_component(instance, component);
5627 +
5628 + ret = destroy_component(instance, component);
5629 +
5630 + mutex_unlock(&instance->vchiq_mutex);
5631 +
5632 + return ret;
5633 +}
5634 +
5635 +/*
5636 + * cause a mmal component to be enabled
5637 + */
5638 +int vchiq_mmal_component_enable(struct vchiq_mmal_instance *instance,
5639 + struct vchiq_mmal_component *component)
5640 +{
5641 + int ret;
5642 +
5643 + if (mutex_lock_interruptible(&instance->vchiq_mutex))
5644 + return -EINTR;
5645 +
5646 + if (component->enabled) {
5647 + mutex_unlock(&instance->vchiq_mutex);
5648 + return 0;
5649 + }
5650 +
5651 + ret = enable_component(instance, component);
5652 + if (ret == 0)
5653 + component->enabled = true;
5654 +
5655 + mutex_unlock(&instance->vchiq_mutex);
5656 +
5657 + return ret;
5658 +}
5659 +
5660 +/*
5661 + * cause a mmal component to be enabled
5662 + */
5663 +int vchiq_mmal_component_disable(struct vchiq_mmal_instance *instance,
5664 + struct vchiq_mmal_component *component)
5665 +{
5666 + int ret;
5667 +
5668 + if (mutex_lock_interruptible(&instance->vchiq_mutex))
5669 + return -EINTR;
5670 +
5671 + if (!component->enabled) {
5672 + mutex_unlock(&instance->vchiq_mutex);
5673 + return 0;
5674 + }
5675 +
5676 + ret = disable_component(instance, component);
5677 + if (ret == 0)
5678 + component->enabled = false;
5679 +
5680 + mutex_unlock(&instance->vchiq_mutex);
5681 +
5682 + return ret;
5683 +}
5684 +
5685 +int vchiq_mmal_version(struct vchiq_mmal_instance *instance,
5686 + u32 *major_out, u32 *minor_out)
5687 +{
5688 + int ret;
5689 +
5690 + if (mutex_lock_interruptible(&instance->vchiq_mutex))
5691 + return -EINTR;
5692 +
5693 + ret = get_version(instance, major_out, minor_out);
5694 +
5695 + mutex_unlock(&instance->vchiq_mutex);
5696 +
5697 + return ret;
5698 +}
5699 +
5700 +int vchiq_mmal_finalise(struct vchiq_mmal_instance *instance)
5701 +{
5702 + int status = 0;
5703 +
5704 + if (instance == NULL)
5705 + return -EINVAL;
5706 +
5707 + if (mutex_lock_interruptible(&instance->vchiq_mutex))
5708 + return -EINTR;
5709 +
5710 + vchi_service_use(instance->handle);
5711 +
5712 + status = vchi_service_close(instance->handle);
5713 + if (status != 0)
5714 + pr_err("mmal-vchiq: VCHIQ close failed");
5715 +
5716 + mutex_unlock(&instance->vchiq_mutex);
5717 +
5718 + vfree(instance->bulk_scratch);
5719 +
5720 + kfree(instance);
5721 +
5722 + return status;
5723 +}
5724 +
5725 +int vchiq_mmal_init(struct vchiq_mmal_instance **out_instance)
5726 +{
5727 + int status;
5728 + struct vchiq_mmal_instance *instance;
5729 + static VCHI_CONNECTION_T *vchi_connection;
5730 + static VCHI_INSTANCE_T vchi_instance;
5731 + SERVICE_CREATION_T params = {
5732 + VCHI_VERSION_EX(VC_MMAL_VER, VC_MMAL_MIN_VER),
5733 + VC_MMAL_SERVER_NAME,
5734 + vchi_connection,
5735 + 0, /* rx fifo size (unused) */
5736 + 0, /* tx fifo size (unused) */
5737 + service_callback,
5738 + NULL, /* service callback parameter */
5739 + 1, /* unaligned bulk receives */
5740 + 1, /* unaligned bulk transmits */
5741 + 0 /* want crc check on bulk transfers */
5742 + };
5743 +
5744 + /* compile time checks to ensure structure size as they are
5745 + * directly (de)serialised from memory.
5746 + */
5747 +
5748 + /* ensure the header structure has packed to the correct size */
5749 + BUILD_BUG_ON(sizeof(struct mmal_msg_header) != 24);
5750 +
5751 + /* ensure message structure does not exceed maximum length */
5752 + BUILD_BUG_ON(sizeof(struct mmal_msg) > MMAL_MSG_MAX_SIZE);
5753 +
5754 + /* mmal port struct is correct size */
5755 + BUILD_BUG_ON(sizeof(struct mmal_port) != 64);
5756 +
5757 + /* create a vchi instance */
5758 + status = vchi_initialise(&vchi_instance);
5759 + if (status) {
5760 + pr_err("Failed to initialise VCHI instance (status=%d)\n",
5761 + status);
5762 + return -EIO;
5763 + }
5764 +
5765 + status = vchi_connect(NULL, 0, vchi_instance);
5766 + if (status) {
5767 + pr_err("Failed to connect VCHI instance (status=%d)\n", status);
5768 + return -EIO;
5769 + }
5770 +
5771 + instance = kmalloc(sizeof(*instance), GFP_KERNEL);
5772 + memset(instance, 0, sizeof(*instance));
5773 +
5774 + mutex_init(&instance->vchiq_mutex);
5775 + mutex_init(&instance->bulk_mutex);
5776 +
5777 + instance->bulk_scratch = vmalloc(PAGE_SIZE);
5778 +
5779 + params.callback_param = instance;
5780 +
5781 + status = vchi_service_open(vchi_instance, &params, &instance->handle);
5782 + if (status) {
5783 + pr_err("Failed to open VCHI service connection (status=%d)\n",
5784 + status);
5785 + goto err_close_services;
5786 + }
5787 +
5788 + vchi_service_release(instance->handle);
5789 +
5790 + *out_instance = instance;
5791 +
5792 + return 0;
5793 +
5794 +err_close_services:
5795 +
5796 + vchi_service_close(instance->handle);
5797 + vfree(instance->bulk_scratch);
5798 + kfree(instance);
5799 + return -ENODEV;
5800 +}
5801 diff --git a/drivers/media/platform/bcm2835/mmal-vchiq.h b/drivers/media/platform/bcm2835/mmal-vchiq.h
5802 new file mode 100644
5803 index 0000000..9d1d11e
5804 --- /dev/null
5805 +++ b/drivers/media/platform/bcm2835/mmal-vchiq.h
5806 @@ -0,0 +1,178 @@
5807 +/*
5808 + * Broadcom BM2835 V4L2 driver
5809 + *
5810 + * Copyright © 2013 Raspberry Pi (Trading) Ltd.
5811 + *
5812 + * This file is subject to the terms and conditions of the GNU General Public
5813 + * License. See the file COPYING in the main directory of this archive
5814 + * for more details.
5815 + *
5816 + * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk>
5817 + * Dave Stevenson <dsteve@broadcom.com>
5818 + * Simon Mellor <simellor@broadcom.com>
5819 + * Luke Diamand <luked@broadcom.com>
5820 + *
5821 + * MMAL interface to VCHIQ message passing
5822 + */
5823 +
5824 +#ifndef MMAL_VCHIQ_H
5825 +#define MMAL_VCHIQ_H
5826 +
5827 +#include "mmal-msg-format.h"
5828 +
5829 +#define MAX_PORT_COUNT 4
5830 +
5831 +/* Maximum size of the format extradata. */
5832 +#define MMAL_FORMAT_EXTRADATA_MAX_SIZE 128
5833 +
5834 +struct vchiq_mmal_instance;
5835 +
5836 +enum vchiq_mmal_es_type {
5837 + MMAL_ES_TYPE_UNKNOWN, /**< Unknown elementary stream type */
5838 + MMAL_ES_TYPE_CONTROL, /**< Elementary stream of control commands */
5839 + MMAL_ES_TYPE_AUDIO, /**< Audio elementary stream */
5840 + MMAL_ES_TYPE_VIDEO, /**< Video elementary stream */
5841 + MMAL_ES_TYPE_SUBPICTURE /**< Sub-picture elementary stream */
5842 +};
5843 +
5844 +/* rectangle, used lots so it gets its own struct */
5845 +struct vchiq_mmal_rect {
5846 + s32 x;
5847 + s32 y;
5848 + s32 width;
5849 + s32 height;
5850 +};
5851 +
5852 +struct vchiq_mmal_port_buffer {
5853 + unsigned int num; /* number of buffers */
5854 + u32 size; /* size of buffers */
5855 + u32 alignment; /* alignment of buffers */
5856 +};
5857 +
5858 +struct vchiq_mmal_port;
5859 +
5860 +typedef void (*vchiq_mmal_buffer_cb)(
5861 + struct vchiq_mmal_instance *instance,
5862 + struct vchiq_mmal_port *port,
5863 + int status, struct mmal_buffer *buffer,
5864 + unsigned long length, u32 mmal_flags, s64 dts, s64 pts);
5865 +
5866 +struct vchiq_mmal_port {
5867 + bool enabled;
5868 + u32 handle;
5869 + u32 type; /* port type, cached to use on port info set */
5870 + u32 index; /* port index, cached to use on port info set */
5871 +
5872 + /* component port belongs to, allows simple deref */
5873 + struct vchiq_mmal_component *component;
5874 +
5875 + struct vchiq_mmal_port *connected; /* port conencted to */
5876 +
5877 + /* buffer info */
5878 + struct vchiq_mmal_port_buffer minimum_buffer;
5879 + struct vchiq_mmal_port_buffer recommended_buffer;
5880 + struct vchiq_mmal_port_buffer current_buffer;
5881 +
5882 + /* stream format */
5883 + struct mmal_es_format format;
5884 + /* elementry stream format */
5885 + union mmal_es_specific_format es;
5886 +
5887 + /* data buffers to fill */
5888 + struct list_head buffers;
5889 + /* lock to serialise adding and removing buffers from list */
5890 + spinlock_t slock;
5891 + /* count of how many buffer header refils have failed because
5892 + * there was no buffer to satisfy them
5893 + */
5894 + int buffer_underflow;
5895 + /* callback on buffer completion */
5896 + vchiq_mmal_buffer_cb buffer_cb;
5897 + /* callback context */
5898 + void *cb_ctx;
5899 +};
5900 +
5901 +struct vchiq_mmal_component {
5902 + bool enabled;
5903 + u32 handle; /* VideoCore handle for component */
5904 + u32 inputs; /* Number of input ports */
5905 + u32 outputs; /* Number of output ports */
5906 + u32 clocks; /* Number of clock ports */
5907 + struct vchiq_mmal_port control; /* control port */
5908 + struct vchiq_mmal_port input[MAX_PORT_COUNT]; /* input ports */
5909 + struct vchiq_mmal_port output[MAX_PORT_COUNT]; /* output ports */
5910 + struct vchiq_mmal_port clock[MAX_PORT_COUNT]; /* clock ports */
5911 +};
5912 +
5913 +
5914 +int vchiq_mmal_init(struct vchiq_mmal_instance **out_instance);
5915 +int vchiq_mmal_finalise(struct vchiq_mmal_instance *instance);
5916 +
5917 +/* Initialise a mmal component and its ports
5918 +*
5919 +*/
5920 +int vchiq_mmal_component_init(
5921 + struct vchiq_mmal_instance *instance,
5922 + const char *name,
5923 + struct vchiq_mmal_component **component_out);
5924 +
5925 +int vchiq_mmal_component_finalise(
5926 + struct vchiq_mmal_instance *instance,
5927 + struct vchiq_mmal_component *component);
5928 +
5929 +int vchiq_mmal_component_enable(
5930 + struct vchiq_mmal_instance *instance,
5931 + struct vchiq_mmal_component *component);
5932 +
5933 +int vchiq_mmal_component_disable(
5934 + struct vchiq_mmal_instance *instance,
5935 + struct vchiq_mmal_component *component);
5936 +
5937 +
5938 +
5939 +/* enable a mmal port
5940 + *
5941 + * enables a port and if a buffer callback provided enque buffer
5942 + * headers as apropriate for the port.
5943 + */
5944 +int vchiq_mmal_port_enable(
5945 + struct vchiq_mmal_instance *instance,
5946 + struct vchiq_mmal_port *port,
5947 + vchiq_mmal_buffer_cb buffer_cb);
5948 +
5949 +/* disable a port
5950 + *
5951 + * disable a port will dequeue any pending buffers
5952 + */
5953 +int vchiq_mmal_port_disable(struct vchiq_mmal_instance *instance,
5954 + struct vchiq_mmal_port *port);
5955 +
5956 +
5957 +int vchiq_mmal_port_parameter_set(struct vchiq_mmal_instance *instance,
5958 + struct vchiq_mmal_port *port,
5959 + u32 parameter,
5960 + void *value,
5961 + u32 value_size);
5962 +
5963 +int vchiq_mmal_port_parameter_get(struct vchiq_mmal_instance *instance,
5964 + struct vchiq_mmal_port *port,
5965 + u32 parameter,
5966 + void *value,
5967 + u32 *value_size);
5968 +
5969 +int vchiq_mmal_port_set_format(struct vchiq_mmal_instance *instance,
5970 + struct vchiq_mmal_port *port);
5971 +
5972 +int vchiq_mmal_port_connect_tunnel(struct vchiq_mmal_instance *instance,
5973 + struct vchiq_mmal_port *src,
5974 + struct vchiq_mmal_port *dst);
5975 +
5976 +int vchiq_mmal_version(struct vchiq_mmal_instance *instance,
5977 + u32 *major_out,
5978 + u32 *minor_out);
5979 +
5980 +int vchiq_mmal_submit_buffer(struct vchiq_mmal_instance *instance,
5981 + struct vchiq_mmal_port *port,
5982 + struct mmal_buffer *buf);
5983 +
5984 +#endif /* MMAL_VCHIQ_H */
5985 --
5986 1.8.3.2
5987
Staging tree of Zoltan Herpai