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[mirror_ubuntu-kernels.git] / drivers / media / platform / coda / coda-common.c
1 /*
2 * Coda multi-standard codec IP
3 *
4 * Copyright (C) 2012 Vista Silicon S.L.
5 * Javier Martin, <javier.martin@vista-silicon.com>
6 * Xavier Duret
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14 #include <linux/clk.h>
15 #include <linux/debugfs.h>
16 #include <linux/delay.h>
17 #include <linux/firmware.h>
18 #include <linux/gcd.h>
19 #include <linux/genalloc.h>
20 #include <linux/idr.h>
21 #include <linux/interrupt.h>
22 #include <linux/io.h>
23 #include <linux/irq.h>
24 #include <linux/kfifo.h>
25 #include <linux/module.h>
26 #include <linux/of_device.h>
27 #include <linux/platform_device.h>
28 #include <linux/pm_runtime.h>
29 #include <linux/slab.h>
30 #include <linux/videodev2.h>
31 #include <linux/of.h>
32 #include <linux/platform_data/media/coda.h>
33 #include <linux/reset.h>
34
35 #include <media/v4l2-ctrls.h>
36 #include <media/v4l2-device.h>
37 #include <media/v4l2-event.h>
38 #include <media/v4l2-ioctl.h>
39 #include <media/v4l2-mem2mem.h>
40 #include <media/videobuf2-v4l2.h>
41 #include <media/videobuf2-dma-contig.h>
42 #include <media/videobuf2-vmalloc.h>
43
44 #include "coda.h"
45 #include "imx-vdoa.h"
46
47 #define CODA_NAME "coda"
48
49 #define CODADX6_MAX_INSTANCES 4
50 #define CODA_MAX_FORMATS 4
51
52 #define CODA_ISRAM_SIZE (2048 * 2)
53
54 #define MIN_W 48
55 #define MIN_H 16
56
57 #define S_ALIGN 1 /* multiple of 2 */
58 #define W_ALIGN 1 /* multiple of 2 */
59 #define H_ALIGN 1 /* multiple of 2 */
60
61 #define fh_to_ctx(__fh) container_of(__fh, struct coda_ctx, fh)
62
63 int coda_debug;
64 module_param(coda_debug, int, 0644);
65 MODULE_PARM_DESC(coda_debug, "Debug level (0-2)");
66
67 static int disable_tiling;
68 module_param(disable_tiling, int, 0644);
69 MODULE_PARM_DESC(disable_tiling, "Disable tiled frame buffers");
70
71 static int disable_vdoa;
72 module_param(disable_vdoa, int, 0644);
73 MODULE_PARM_DESC(disable_vdoa, "Disable Video Data Order Adapter tiled to raster-scan conversion");
74
75 static int enable_bwb = 0;
76 module_param(enable_bwb, int, 0644);
77 MODULE_PARM_DESC(enable_bwb, "Enable BWB unit for decoding, may crash on certain streams");
78
79 void coda_write(struct coda_dev *dev, u32 data, u32 reg)
80 {
81 v4l2_dbg(2, coda_debug, &dev->v4l2_dev,
82 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
83 writel(data, dev->regs_base + reg);
84 }
85
86 unsigned int coda_read(struct coda_dev *dev, u32 reg)
87 {
88 u32 data;
89
90 data = readl(dev->regs_base + reg);
91 v4l2_dbg(2, coda_debug, &dev->v4l2_dev,
92 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
93 return data;
94 }
95
96 void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
97 struct vb2_v4l2_buffer *buf, unsigned int reg_y)
98 {
99 u32 base_y = vb2_dma_contig_plane_dma_addr(&buf->vb2_buf, 0);
100 u32 base_cb, base_cr;
101
102 switch (q_data->fourcc) {
103 case V4L2_PIX_FMT_YUYV:
104 /* Fallthrough: IN -H264-> CODA -NV12 MB-> VDOA -YUYV-> OUT */
105 case V4L2_PIX_FMT_NV12:
106 case V4L2_PIX_FMT_YUV420:
107 default:
108 base_cb = base_y + q_data->bytesperline * q_data->height;
109 base_cr = base_cb + q_data->bytesperline * q_data->height / 4;
110 break;
111 case V4L2_PIX_FMT_YVU420:
112 /* Switch Cb and Cr for YVU420 format */
113 base_cr = base_y + q_data->bytesperline * q_data->height;
114 base_cb = base_cr + q_data->bytesperline * q_data->height / 4;
115 break;
116 case V4L2_PIX_FMT_YUV422P:
117 base_cb = base_y + q_data->bytesperline * q_data->height;
118 base_cr = base_cb + q_data->bytesperline * q_data->height / 2;
119 }
120
121 coda_write(ctx->dev, base_y, reg_y);
122 coda_write(ctx->dev, base_cb, reg_y + 4);
123 coda_write(ctx->dev, base_cr, reg_y + 8);
124 }
125
126 #define CODA_CODEC(mode, src_fourcc, dst_fourcc, max_w, max_h) \
127 { mode, src_fourcc, dst_fourcc, max_w, max_h }
128
129 /*
130 * Arrays of codecs supported by each given version of Coda:
131 * i.MX27 -> codadx6
132 * i.MX51 -> codahx4
133 * i.MX53 -> coda7
134 * i.MX6 -> coda960
135 * Use V4L2_PIX_FMT_YUV420 as placeholder for all supported YUV 4:2:0 variants
136 */
137 static const struct coda_codec codadx6_codecs[] = {
138 CODA_CODEC(CODADX6_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576),
139 CODA_CODEC(CODADX6_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 720, 576),
140 };
141
142 static const struct coda_codec codahx4_codecs[] = {
143 CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576),
144 CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
145 CODA_CODEC(CODA7_MODE_DECODE_MP2, V4L2_PIX_FMT_MPEG2, V4L2_PIX_FMT_YUV420, 1920, 1088),
146 CODA_CODEC(CODA7_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1280, 720),
147 };
148
149 static const struct coda_codec coda7_codecs[] = {
150 CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1280, 720),
151 CODA_CODEC(CODA7_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1280, 720),
152 CODA_CODEC(CODA7_MODE_ENCODE_MJPG, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_JPEG, 8192, 8192),
153 CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
154 CODA_CODEC(CODA7_MODE_DECODE_MP2, V4L2_PIX_FMT_MPEG2, V4L2_PIX_FMT_YUV420, 1920, 1088),
155 CODA_CODEC(CODA7_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
156 CODA_CODEC(CODA7_MODE_DECODE_MJPG, V4L2_PIX_FMT_JPEG, V4L2_PIX_FMT_YUV420, 8192, 8192),
157 };
158
159 static const struct coda_codec coda9_codecs[] = {
160 CODA_CODEC(CODA9_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1920, 1088),
161 CODA_CODEC(CODA9_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1920, 1088),
162 CODA_CODEC(CODA9_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
163 CODA_CODEC(CODA9_MODE_DECODE_MP2, V4L2_PIX_FMT_MPEG2, V4L2_PIX_FMT_YUV420, 1920, 1088),
164 CODA_CODEC(CODA9_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
165 };
166
167 struct coda_video_device {
168 const char *name;
169 enum coda_inst_type type;
170 const struct coda_context_ops *ops;
171 bool direct;
172 u32 src_formats[CODA_MAX_FORMATS];
173 u32 dst_formats[CODA_MAX_FORMATS];
174 };
175
176 static const struct coda_video_device coda_bit_encoder = {
177 .name = "coda-encoder",
178 .type = CODA_INST_ENCODER,
179 .ops = &coda_bit_encode_ops,
180 .src_formats = {
181 V4L2_PIX_FMT_NV12,
182 V4L2_PIX_FMT_YUV420,
183 V4L2_PIX_FMT_YVU420,
184 },
185 .dst_formats = {
186 V4L2_PIX_FMT_H264,
187 V4L2_PIX_FMT_MPEG4,
188 },
189 };
190
191 static const struct coda_video_device coda_bit_jpeg_encoder = {
192 .name = "coda-jpeg-encoder",
193 .type = CODA_INST_ENCODER,
194 .ops = &coda_bit_encode_ops,
195 .src_formats = {
196 V4L2_PIX_FMT_NV12,
197 V4L2_PIX_FMT_YUV420,
198 V4L2_PIX_FMT_YVU420,
199 V4L2_PIX_FMT_YUV422P,
200 },
201 .dst_formats = {
202 V4L2_PIX_FMT_JPEG,
203 },
204 };
205
206 static const struct coda_video_device coda_bit_decoder = {
207 .name = "coda-decoder",
208 .type = CODA_INST_DECODER,
209 .ops = &coda_bit_decode_ops,
210 .src_formats = {
211 V4L2_PIX_FMT_H264,
212 V4L2_PIX_FMT_MPEG2,
213 V4L2_PIX_FMT_MPEG4,
214 },
215 .dst_formats = {
216 V4L2_PIX_FMT_NV12,
217 V4L2_PIX_FMT_YUV420,
218 V4L2_PIX_FMT_YVU420,
219 /*
220 * If V4L2_PIX_FMT_YUYV should be default,
221 * set_default_params() must be adjusted.
222 */
223 V4L2_PIX_FMT_YUYV,
224 },
225 };
226
227 static const struct coda_video_device coda_bit_jpeg_decoder = {
228 .name = "coda-jpeg-decoder",
229 .type = CODA_INST_DECODER,
230 .ops = &coda_bit_decode_ops,
231 .src_formats = {
232 V4L2_PIX_FMT_JPEG,
233 },
234 .dst_formats = {
235 V4L2_PIX_FMT_NV12,
236 V4L2_PIX_FMT_YUV420,
237 V4L2_PIX_FMT_YVU420,
238 V4L2_PIX_FMT_YUV422P,
239 },
240 };
241
242 static const struct coda_video_device *codadx6_video_devices[] = {
243 &coda_bit_encoder,
244 };
245
246 static const struct coda_video_device *codahx4_video_devices[] = {
247 &coda_bit_encoder,
248 &coda_bit_decoder,
249 };
250
251 static const struct coda_video_device *coda7_video_devices[] = {
252 &coda_bit_jpeg_encoder,
253 &coda_bit_jpeg_decoder,
254 &coda_bit_encoder,
255 &coda_bit_decoder,
256 };
257
258 static const struct coda_video_device *coda9_video_devices[] = {
259 &coda_bit_encoder,
260 &coda_bit_decoder,
261 };
262
263 /*
264 * Normalize all supported YUV 4:2:0 formats to the value used in the codec
265 * tables.
266 */
267 static u32 coda_format_normalize_yuv(u32 fourcc)
268 {
269 switch (fourcc) {
270 case V4L2_PIX_FMT_NV12:
271 case V4L2_PIX_FMT_YUV420:
272 case V4L2_PIX_FMT_YVU420:
273 case V4L2_PIX_FMT_YUV422P:
274 case V4L2_PIX_FMT_YUYV:
275 return V4L2_PIX_FMT_YUV420;
276 default:
277 return fourcc;
278 }
279 }
280
281 static const struct coda_codec *coda_find_codec(struct coda_dev *dev,
282 int src_fourcc, int dst_fourcc)
283 {
284 const struct coda_codec *codecs = dev->devtype->codecs;
285 int num_codecs = dev->devtype->num_codecs;
286 int k;
287
288 src_fourcc = coda_format_normalize_yuv(src_fourcc);
289 dst_fourcc = coda_format_normalize_yuv(dst_fourcc);
290 if (src_fourcc == dst_fourcc)
291 return NULL;
292
293 for (k = 0; k < num_codecs; k++) {
294 if (codecs[k].src_fourcc == src_fourcc &&
295 codecs[k].dst_fourcc == dst_fourcc)
296 break;
297 }
298
299 if (k == num_codecs)
300 return NULL;
301
302 return &codecs[k];
303 }
304
305 static void coda_get_max_dimensions(struct coda_dev *dev,
306 const struct coda_codec *codec,
307 int *max_w, int *max_h)
308 {
309 const struct coda_codec *codecs = dev->devtype->codecs;
310 int num_codecs = dev->devtype->num_codecs;
311 unsigned int w, h;
312 int k;
313
314 if (codec) {
315 w = codec->max_w;
316 h = codec->max_h;
317 } else {
318 for (k = 0, w = 0, h = 0; k < num_codecs; k++) {
319 w = max(w, codecs[k].max_w);
320 h = max(h, codecs[k].max_h);
321 }
322 }
323
324 if (max_w)
325 *max_w = w;
326 if (max_h)
327 *max_h = h;
328 }
329
330 static const struct coda_video_device *to_coda_video_device(struct video_device
331 *vdev)
332 {
333 struct coda_dev *dev = video_get_drvdata(vdev);
334 unsigned int i = vdev - dev->vfd;
335
336 if (i >= dev->devtype->num_vdevs)
337 return NULL;
338
339 return dev->devtype->vdevs[i];
340 }
341
342 const char *coda_product_name(int product)
343 {
344 static char buf[9];
345
346 switch (product) {
347 case CODA_DX6:
348 return "CodaDx6";
349 case CODA_HX4:
350 return "CodaHx4";
351 case CODA_7541:
352 return "CODA7541";
353 case CODA_960:
354 return "CODA960";
355 default:
356 snprintf(buf, sizeof(buf), "(0x%04x)", product);
357 return buf;
358 }
359 }
360
361 static struct vdoa_data *coda_get_vdoa_data(void)
362 {
363 struct device_node *vdoa_node;
364 struct platform_device *vdoa_pdev;
365 struct vdoa_data *vdoa_data = NULL;
366
367 vdoa_node = of_find_compatible_node(NULL, NULL, "fsl,imx6q-vdoa");
368 if (!vdoa_node)
369 return NULL;
370
371 vdoa_pdev = of_find_device_by_node(vdoa_node);
372 if (!vdoa_pdev)
373 goto out;
374
375 vdoa_data = platform_get_drvdata(vdoa_pdev);
376 if (!vdoa_data)
377 vdoa_data = ERR_PTR(-EPROBE_DEFER);
378
379 out:
380 of_node_put(vdoa_node);
381
382 return vdoa_data;
383 }
384
385 /*
386 * V4L2 ioctl() operations.
387 */
388 static int coda_querycap(struct file *file, void *priv,
389 struct v4l2_capability *cap)
390 {
391 struct coda_ctx *ctx = fh_to_ctx(priv);
392
393 strscpy(cap->driver, CODA_NAME, sizeof(cap->driver));
394 strscpy(cap->card, coda_product_name(ctx->dev->devtype->product),
395 sizeof(cap->card));
396 strscpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
397 cap->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
398 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
399
400 return 0;
401 }
402
403 static int coda_enum_fmt(struct file *file, void *priv,
404 struct v4l2_fmtdesc *f)
405 {
406 struct video_device *vdev = video_devdata(file);
407 const struct coda_video_device *cvd = to_coda_video_device(vdev);
408 struct coda_ctx *ctx = fh_to_ctx(priv);
409 const u32 *formats;
410
411 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
412 formats = cvd->src_formats;
413 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
414 formats = cvd->dst_formats;
415 else
416 return -EINVAL;
417
418 if (f->index >= CODA_MAX_FORMATS || formats[f->index] == 0)
419 return -EINVAL;
420
421 /* Skip YUYV if the vdoa is not available */
422 if (!ctx->vdoa && f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
423 formats[f->index] == V4L2_PIX_FMT_YUYV)
424 return -EINVAL;
425
426 f->pixelformat = formats[f->index];
427
428 return 0;
429 }
430
431 static int coda_g_fmt(struct file *file, void *priv,
432 struct v4l2_format *f)
433 {
434 struct coda_q_data *q_data;
435 struct coda_ctx *ctx = fh_to_ctx(priv);
436
437 q_data = get_q_data(ctx, f->type);
438 if (!q_data)
439 return -EINVAL;
440
441 f->fmt.pix.field = V4L2_FIELD_NONE;
442 f->fmt.pix.pixelformat = q_data->fourcc;
443 f->fmt.pix.width = q_data->width;
444 f->fmt.pix.height = q_data->height;
445 f->fmt.pix.bytesperline = q_data->bytesperline;
446
447 f->fmt.pix.sizeimage = q_data->sizeimage;
448 f->fmt.pix.colorspace = ctx->colorspace;
449 f->fmt.pix.xfer_func = ctx->xfer_func;
450 f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
451 f->fmt.pix.quantization = ctx->quantization;
452
453 return 0;
454 }
455
456 static int coda_try_pixelformat(struct coda_ctx *ctx, struct v4l2_format *f)
457 {
458 struct coda_q_data *q_data;
459 const u32 *formats;
460 int i;
461
462 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
463 formats = ctx->cvd->src_formats;
464 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
465 formats = ctx->cvd->dst_formats;
466 else
467 return -EINVAL;
468
469 for (i = 0; i < CODA_MAX_FORMATS; i++) {
470 /* Skip YUYV if the vdoa is not available */
471 if (!ctx->vdoa && f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
472 formats[i] == V4L2_PIX_FMT_YUYV)
473 continue;
474
475 if (formats[i] == f->fmt.pix.pixelformat) {
476 f->fmt.pix.pixelformat = formats[i];
477 return 0;
478 }
479 }
480
481 /* Fall back to currently set pixelformat */
482 q_data = get_q_data(ctx, f->type);
483 f->fmt.pix.pixelformat = q_data->fourcc;
484
485 return 0;
486 }
487
488 static int coda_try_fmt_vdoa(struct coda_ctx *ctx, struct v4l2_format *f,
489 bool *use_vdoa)
490 {
491 int err;
492
493 if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
494 return -EINVAL;
495
496 if (!use_vdoa)
497 return -EINVAL;
498
499 if (!ctx->vdoa) {
500 *use_vdoa = false;
501 return 0;
502 }
503
504 err = vdoa_context_configure(NULL, round_up(f->fmt.pix.width, 16),
505 f->fmt.pix.height, f->fmt.pix.pixelformat);
506 if (err) {
507 *use_vdoa = false;
508 return 0;
509 }
510
511 *use_vdoa = true;
512 return 0;
513 }
514
515 static unsigned int coda_estimate_sizeimage(struct coda_ctx *ctx, u32 sizeimage,
516 u32 width, u32 height)
517 {
518 /*
519 * This is a rough estimate for sensible compressed buffer
520 * sizes (between 1 and 16 bits per pixel). This could be
521 * improved by better format specific worst case estimates.
522 */
523 return round_up(clamp(sizeimage, width * height / 8,
524 width * height * 2), PAGE_SIZE);
525 }
526
527 static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
528 struct v4l2_format *f)
529 {
530 struct coda_dev *dev = ctx->dev;
531 unsigned int max_w, max_h;
532 enum v4l2_field field;
533
534 field = f->fmt.pix.field;
535 if (field == V4L2_FIELD_ANY)
536 field = V4L2_FIELD_NONE;
537 else if (V4L2_FIELD_NONE != field)
538 return -EINVAL;
539
540 /* V4L2 specification suggests the driver corrects the format struct
541 * if any of the dimensions is unsupported */
542 f->fmt.pix.field = field;
543
544 coda_get_max_dimensions(dev, codec, &max_w, &max_h);
545 v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w, W_ALIGN,
546 &f->fmt.pix.height, MIN_H, max_h, H_ALIGN,
547 S_ALIGN);
548
549 switch (f->fmt.pix.pixelformat) {
550 case V4L2_PIX_FMT_NV12:
551 case V4L2_PIX_FMT_YUV420:
552 case V4L2_PIX_FMT_YVU420:
553 /*
554 * Frame stride must be at least multiple of 8,
555 * but multiple of 16 for h.264 or JPEG 4:2:x
556 */
557 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
558 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
559 f->fmt.pix.height * 3 / 2;
560 break;
561 case V4L2_PIX_FMT_YUYV:
562 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16) * 2;
563 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
564 f->fmt.pix.height;
565 break;
566 case V4L2_PIX_FMT_YUV422P:
567 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
568 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
569 f->fmt.pix.height * 2;
570 break;
571 case V4L2_PIX_FMT_JPEG:
572 case V4L2_PIX_FMT_H264:
573 case V4L2_PIX_FMT_MPEG4:
574 case V4L2_PIX_FMT_MPEG2:
575 f->fmt.pix.bytesperline = 0;
576 f->fmt.pix.sizeimage = coda_estimate_sizeimage(ctx,
577 f->fmt.pix.sizeimage,
578 f->fmt.pix.width,
579 f->fmt.pix.height);
580 break;
581 default:
582 BUG();
583 }
584
585 return 0;
586 }
587
588 static int coda_try_fmt_vid_cap(struct file *file, void *priv,
589 struct v4l2_format *f)
590 {
591 struct coda_ctx *ctx = fh_to_ctx(priv);
592 const struct coda_q_data *q_data_src;
593 const struct coda_codec *codec;
594 struct vb2_queue *src_vq;
595 int ret;
596 bool use_vdoa;
597
598 ret = coda_try_pixelformat(ctx, f);
599 if (ret < 0)
600 return ret;
601
602 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
603
604 /*
605 * If the source format is already fixed, only allow the same output
606 * resolution
607 */
608 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
609 if (vb2_is_streaming(src_vq)) {
610 f->fmt.pix.width = q_data_src->width;
611 f->fmt.pix.height = q_data_src->height;
612 }
613
614 f->fmt.pix.colorspace = ctx->colorspace;
615 f->fmt.pix.xfer_func = ctx->xfer_func;
616 f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
617 f->fmt.pix.quantization = ctx->quantization;
618
619 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
620 codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
621 f->fmt.pix.pixelformat);
622 if (!codec)
623 return -EINVAL;
624
625 ret = coda_try_fmt(ctx, codec, f);
626 if (ret < 0)
627 return ret;
628
629 /* The h.264 decoder only returns complete 16x16 macroblocks */
630 if (codec && codec->src_fourcc == V4L2_PIX_FMT_H264) {
631 f->fmt.pix.height = round_up(f->fmt.pix.height, 16);
632 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
633 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
634 f->fmt.pix.height * 3 / 2;
635
636 ret = coda_try_fmt_vdoa(ctx, f, &use_vdoa);
637 if (ret < 0)
638 return ret;
639
640 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) {
641 if (!use_vdoa)
642 return -EINVAL;
643
644 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16) * 2;
645 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
646 f->fmt.pix.height;
647 }
648 }
649
650 return 0;
651 }
652
653 static void coda_set_default_colorspace(struct v4l2_pix_format *fmt)
654 {
655 enum v4l2_colorspace colorspace;
656
657 if (fmt->pixelformat == V4L2_PIX_FMT_JPEG)
658 colorspace = V4L2_COLORSPACE_JPEG;
659 else if (fmt->width <= 720 && fmt->height <= 576)
660 colorspace = V4L2_COLORSPACE_SMPTE170M;
661 else
662 colorspace = V4L2_COLORSPACE_REC709;
663
664 fmt->colorspace = colorspace;
665 fmt->xfer_func = V4L2_XFER_FUNC_DEFAULT;
666 fmt->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
667 fmt->quantization = V4L2_QUANTIZATION_DEFAULT;
668 }
669
670 static int coda_try_fmt_vid_out(struct file *file, void *priv,
671 struct v4l2_format *f)
672 {
673 struct coda_ctx *ctx = fh_to_ctx(priv);
674 struct coda_dev *dev = ctx->dev;
675 const struct coda_q_data *q_data_dst;
676 const struct coda_codec *codec;
677 int ret;
678
679 ret = coda_try_pixelformat(ctx, f);
680 if (ret < 0)
681 return ret;
682
683 if (f->fmt.pix.colorspace == V4L2_COLORSPACE_DEFAULT)
684 coda_set_default_colorspace(&f->fmt.pix);
685
686 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
687 codec = coda_find_codec(dev, f->fmt.pix.pixelformat, q_data_dst->fourcc);
688
689 return coda_try_fmt(ctx, codec, f);
690 }
691
692 static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f,
693 struct v4l2_rect *r)
694 {
695 struct coda_q_data *q_data;
696 struct vb2_queue *vq;
697
698 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
699 if (!vq)
700 return -EINVAL;
701
702 q_data = get_q_data(ctx, f->type);
703 if (!q_data)
704 return -EINVAL;
705
706 if (vb2_is_busy(vq)) {
707 v4l2_err(&ctx->dev->v4l2_dev, "%s: %s queue busy: %d\n",
708 __func__, v4l2_type_names[f->type], vq->num_buffers);
709 return -EBUSY;
710 }
711
712 q_data->fourcc = f->fmt.pix.pixelformat;
713 q_data->width = f->fmt.pix.width;
714 q_data->height = f->fmt.pix.height;
715 q_data->bytesperline = f->fmt.pix.bytesperline;
716 q_data->sizeimage = f->fmt.pix.sizeimage;
717 if (r) {
718 q_data->rect = *r;
719 } else {
720 q_data->rect.left = 0;
721 q_data->rect.top = 0;
722 q_data->rect.width = f->fmt.pix.width;
723 q_data->rect.height = f->fmt.pix.height;
724 }
725
726 switch (f->fmt.pix.pixelformat) {
727 case V4L2_PIX_FMT_YUYV:
728 ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP;
729 break;
730 case V4L2_PIX_FMT_NV12:
731 if (!disable_tiling && ctx->dev->devtype->product == CODA_960) {
732 ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP;
733 break;
734 }
735 /* else fall through */
736 case V4L2_PIX_FMT_YUV420:
737 case V4L2_PIX_FMT_YVU420:
738 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP;
739 break;
740 default:
741 break;
742 }
743
744 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP &&
745 !coda_try_fmt_vdoa(ctx, f, &ctx->use_vdoa) &&
746 ctx->use_vdoa)
747 vdoa_context_configure(ctx->vdoa,
748 round_up(f->fmt.pix.width, 16),
749 f->fmt.pix.height,
750 f->fmt.pix.pixelformat);
751 else
752 ctx->use_vdoa = false;
753
754 coda_dbg(1, ctx, "Setting %s format, wxh: %dx%d, fmt: %4.4s %c\n",
755 v4l2_type_names[f->type], q_data->width, q_data->height,
756 (char *)&q_data->fourcc,
757 (ctx->tiled_map_type == GDI_LINEAR_FRAME_MAP) ? 'L' : 'T');
758
759 return 0;
760 }
761
762 static int coda_s_fmt_vid_cap(struct file *file, void *priv,
763 struct v4l2_format *f)
764 {
765 struct coda_ctx *ctx = fh_to_ctx(priv);
766 struct coda_q_data *q_data_src;
767 struct v4l2_rect r;
768 int ret;
769
770 ret = coda_try_fmt_vid_cap(file, priv, f);
771 if (ret)
772 return ret;
773
774 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
775 r.left = 0;
776 r.top = 0;
777 r.width = q_data_src->width;
778 r.height = q_data_src->height;
779
780 ret = coda_s_fmt(ctx, f, &r);
781 if (ret)
782 return ret;
783
784 if (ctx->inst_type != CODA_INST_ENCODER)
785 return 0;
786
787 ctx->colorspace = f->fmt.pix.colorspace;
788 ctx->xfer_func = f->fmt.pix.xfer_func;
789 ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
790 ctx->quantization = f->fmt.pix.quantization;
791
792 return 0;
793 }
794
795 static int coda_s_fmt_vid_out(struct file *file, void *priv,
796 struct v4l2_format *f)
797 {
798 struct coda_ctx *ctx = fh_to_ctx(priv);
799 struct v4l2_format f_cap;
800 struct vb2_queue *dst_vq;
801 int ret;
802
803 ret = coda_try_fmt_vid_out(file, priv, f);
804 if (ret)
805 return ret;
806
807 ret = coda_s_fmt(ctx, f, NULL);
808 if (ret)
809 return ret;
810
811 if (ctx->inst_type != CODA_INST_DECODER)
812 return 0;
813
814 ctx->colorspace = f->fmt.pix.colorspace;
815 ctx->xfer_func = f->fmt.pix.xfer_func;
816 ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
817 ctx->quantization = f->fmt.pix.quantization;
818
819 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
820 if (!dst_vq)
821 return -EINVAL;
822
823 /*
824 * Setting the capture queue format is not possible while the capture
825 * queue is still busy. This is not an error, but the user will have to
826 * make sure themselves that the capture format is set correctly before
827 * starting the output queue again.
828 */
829 if (vb2_is_busy(dst_vq))
830 return 0;
831
832 memset(&f_cap, 0, sizeof(f_cap));
833 f_cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
834 coda_g_fmt(file, priv, &f_cap);
835 f_cap.fmt.pix.width = f->fmt.pix.width;
836 f_cap.fmt.pix.height = f->fmt.pix.height;
837
838 return coda_s_fmt_vid_cap(file, priv, &f_cap);
839 }
840
841 static int coda_reqbufs(struct file *file, void *priv,
842 struct v4l2_requestbuffers *rb)
843 {
844 struct coda_ctx *ctx = fh_to_ctx(priv);
845 int ret;
846
847 ret = v4l2_m2m_reqbufs(file, ctx->fh.m2m_ctx, rb);
848 if (ret)
849 return ret;
850
851 /*
852 * Allow to allocate instance specific per-context buffers, such as
853 * bitstream ringbuffer, slice buffer, work buffer, etc. if needed.
854 */
855 if (rb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && ctx->ops->reqbufs)
856 return ctx->ops->reqbufs(ctx, rb);
857
858 return 0;
859 }
860
861 static int coda_qbuf(struct file *file, void *priv,
862 struct v4l2_buffer *buf)
863 {
864 struct coda_ctx *ctx = fh_to_ctx(priv);
865
866 return v4l2_m2m_qbuf(file, ctx->fh.m2m_ctx, buf);
867 }
868
869 static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx,
870 struct vb2_v4l2_buffer *buf)
871 {
872 return ((ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) &&
873 (buf->sequence == (ctx->qsequence - 1)));
874 }
875
876 void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
877 enum vb2_buffer_state state)
878 {
879 const struct v4l2_event eos_event = {
880 .type = V4L2_EVENT_EOS
881 };
882
883 if (coda_buf_is_end_of_stream(ctx, buf)) {
884 buf->flags |= V4L2_BUF_FLAG_LAST;
885
886 v4l2_event_queue_fh(&ctx->fh, &eos_event);
887 }
888
889 v4l2_m2m_buf_done(buf, state);
890 }
891
892 static int coda_g_selection(struct file *file, void *fh,
893 struct v4l2_selection *s)
894 {
895 struct coda_ctx *ctx = fh_to_ctx(fh);
896 struct coda_q_data *q_data;
897 struct v4l2_rect r, *rsel;
898
899 q_data = get_q_data(ctx, s->type);
900 if (!q_data)
901 return -EINVAL;
902
903 r.left = 0;
904 r.top = 0;
905 r.width = q_data->width;
906 r.height = q_data->height;
907 rsel = &q_data->rect;
908
909 switch (s->target) {
910 case V4L2_SEL_TGT_CROP_DEFAULT:
911 case V4L2_SEL_TGT_CROP_BOUNDS:
912 rsel = &r;
913 /* fallthrough */
914 case V4L2_SEL_TGT_CROP:
915 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
916 return -EINVAL;
917 break;
918 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
919 case V4L2_SEL_TGT_COMPOSE_PADDED:
920 rsel = &r;
921 /* fallthrough */
922 case V4L2_SEL_TGT_COMPOSE:
923 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
924 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
925 return -EINVAL;
926 break;
927 default:
928 return -EINVAL;
929 }
930
931 s->r = *rsel;
932
933 return 0;
934 }
935
936 static int coda_s_selection(struct file *file, void *fh,
937 struct v4l2_selection *s)
938 {
939 struct coda_ctx *ctx = fh_to_ctx(fh);
940 struct coda_q_data *q_data;
941
942 switch (s->target) {
943 case V4L2_SEL_TGT_CROP:
944 if (ctx->inst_type == CODA_INST_ENCODER &&
945 s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
946 q_data = get_q_data(ctx, s->type);
947 if (!q_data)
948 return -EINVAL;
949
950 s->r.left = 0;
951 s->r.top = 0;
952 s->r.width = clamp(s->r.width, 2U, q_data->width);
953 s->r.height = clamp(s->r.height, 2U, q_data->height);
954
955 if (s->flags & V4L2_SEL_FLAG_LE) {
956 s->r.width = round_up(s->r.width, 2);
957 s->r.height = round_up(s->r.height, 2);
958 } else {
959 s->r.width = round_down(s->r.width, 2);
960 s->r.height = round_down(s->r.height, 2);
961 }
962
963 q_data->rect = s->r;
964
965 coda_dbg(1, ctx, "Setting crop rectangle: %dx%d\n",
966 s->r.width, s->r.height);
967
968 return 0;
969 }
970 /* else fall through */
971 case V4L2_SEL_TGT_NATIVE_SIZE:
972 case V4L2_SEL_TGT_COMPOSE:
973 return coda_g_selection(file, fh, s);
974 default:
975 /* v4l2-compliance expects this to fail for read-only targets */
976 return -EINVAL;
977 }
978 }
979
980 static int coda_try_encoder_cmd(struct file *file, void *fh,
981 struct v4l2_encoder_cmd *ec)
982 {
983 if (ec->cmd != V4L2_ENC_CMD_STOP)
984 return -EINVAL;
985
986 if (ec->flags & V4L2_ENC_CMD_STOP_AT_GOP_END)
987 return -EINVAL;
988
989 return 0;
990 }
991
992 static int coda_encoder_cmd(struct file *file, void *fh,
993 struct v4l2_encoder_cmd *ec)
994 {
995 struct coda_ctx *ctx = fh_to_ctx(fh);
996 struct vb2_queue *dst_vq;
997 int ret;
998
999 ret = coda_try_encoder_cmd(file, fh, ec);
1000 if (ret < 0)
1001 return ret;
1002
1003 /* Ignore encoder stop command silently in decoder context */
1004 if (ctx->inst_type != CODA_INST_ENCODER)
1005 return 0;
1006
1007 /* Set the stream-end flag on this context */
1008 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
1009
1010 /* If there is no buffer in flight, wake up */
1011 if (!ctx->streamon_out || ctx->qsequence == ctx->osequence) {
1012 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
1013 V4L2_BUF_TYPE_VIDEO_CAPTURE);
1014 dst_vq->last_buffer_dequeued = true;
1015 wake_up(&dst_vq->done_wq);
1016 }
1017
1018 return 0;
1019 }
1020
1021 static int coda_try_decoder_cmd(struct file *file, void *fh,
1022 struct v4l2_decoder_cmd *dc)
1023 {
1024 if (dc->cmd != V4L2_DEC_CMD_STOP)
1025 return -EINVAL;
1026
1027 if (dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK)
1028 return -EINVAL;
1029
1030 if (!(dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY) && (dc->stop.pts != 0))
1031 return -EINVAL;
1032
1033 return 0;
1034 }
1035
1036 static int coda_decoder_cmd(struct file *file, void *fh,
1037 struct v4l2_decoder_cmd *dc)
1038 {
1039 struct coda_ctx *ctx = fh_to_ctx(fh);
1040 int ret;
1041
1042 ret = coda_try_decoder_cmd(file, fh, dc);
1043 if (ret < 0)
1044 return ret;
1045
1046 /* Ignore decoder stop command silently in encoder context */
1047 if (ctx->inst_type != CODA_INST_DECODER)
1048 return 0;
1049
1050 /* Set the stream-end flag on this context */
1051 coda_bit_stream_end_flag(ctx);
1052 ctx->hold = false;
1053 v4l2_m2m_try_schedule(ctx->fh.m2m_ctx);
1054
1055 return 0;
1056 }
1057
1058 static int coda_enum_frameintervals(struct file *file, void *fh,
1059 struct v4l2_frmivalenum *f)
1060 {
1061 struct coda_ctx *ctx = fh_to_ctx(fh);
1062 int i;
1063
1064 if (f->index)
1065 return -EINVAL;
1066
1067 /* Disallow YUYV if the vdoa is not available */
1068 if (!ctx->vdoa && f->pixel_format == V4L2_PIX_FMT_YUYV)
1069 return -EINVAL;
1070
1071 for (i = 0; i < CODA_MAX_FORMATS; i++) {
1072 if (f->pixel_format == ctx->cvd->src_formats[i] ||
1073 f->pixel_format == ctx->cvd->dst_formats[i])
1074 break;
1075 }
1076 if (i == CODA_MAX_FORMATS)
1077 return -EINVAL;
1078
1079 f->type = V4L2_FRMIVAL_TYPE_CONTINUOUS;
1080 f->stepwise.min.numerator = 1;
1081 f->stepwise.min.denominator = 65535;
1082 f->stepwise.max.numerator = 65536;
1083 f->stepwise.max.denominator = 1;
1084 f->stepwise.step.numerator = 1;
1085 f->stepwise.step.denominator = 1;
1086
1087 return 0;
1088 }
1089
1090 static int coda_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1091 {
1092 struct coda_ctx *ctx = fh_to_ctx(fh);
1093 struct v4l2_fract *tpf;
1094
1095 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1096 return -EINVAL;
1097
1098 a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
1099 tpf = &a->parm.output.timeperframe;
1100 tpf->denominator = ctx->params.framerate & CODA_FRATE_RES_MASK;
1101 tpf->numerator = 1 + (ctx->params.framerate >>
1102 CODA_FRATE_DIV_OFFSET);
1103
1104 return 0;
1105 }
1106
1107 /*
1108 * Approximate timeperframe v4l2_fract with values that can be written
1109 * into the 16-bit CODA_FRATE_DIV and CODA_FRATE_RES fields.
1110 */
1111 static void coda_approximate_timeperframe(struct v4l2_fract *timeperframe)
1112 {
1113 struct v4l2_fract s = *timeperframe;
1114 struct v4l2_fract f0;
1115 struct v4l2_fract f1 = { 1, 0 };
1116 struct v4l2_fract f2 = { 0, 1 };
1117 unsigned int i, div, s_denominator;
1118
1119 /* Lower bound is 1/65535 */
1120 if (s.numerator == 0 || s.denominator / s.numerator > 65535) {
1121 timeperframe->numerator = 1;
1122 timeperframe->denominator = 65535;
1123 return;
1124 }
1125
1126 /* Upper bound is 65536/1 */
1127 if (s.denominator == 0 || s.numerator / s.denominator > 65536) {
1128 timeperframe->numerator = 65536;
1129 timeperframe->denominator = 1;
1130 return;
1131 }
1132
1133 /* Reduce fraction to lowest terms */
1134 div = gcd(s.numerator, s.denominator);
1135 if (div > 1) {
1136 s.numerator /= div;
1137 s.denominator /= div;
1138 }
1139
1140 if (s.numerator <= 65536 && s.denominator < 65536) {
1141 *timeperframe = s;
1142 return;
1143 }
1144
1145 /* Find successive convergents from continued fraction expansion */
1146 while (f2.numerator <= 65536 && f2.denominator < 65536) {
1147 f0 = f1;
1148 f1 = f2;
1149
1150 /* Stop when f2 exactly equals timeperframe */
1151 if (s.numerator == 0)
1152 break;
1153
1154 i = s.denominator / s.numerator;
1155
1156 f2.numerator = f0.numerator + i * f1.numerator;
1157 f2.denominator = f0.denominator + i * f2.denominator;
1158
1159 s_denominator = s.numerator;
1160 s.numerator = s.denominator % s.numerator;
1161 s.denominator = s_denominator;
1162 }
1163
1164 *timeperframe = f1;
1165 }
1166
1167 static uint32_t coda_timeperframe_to_frate(struct v4l2_fract *timeperframe)
1168 {
1169 return ((timeperframe->numerator - 1) << CODA_FRATE_DIV_OFFSET) |
1170 timeperframe->denominator;
1171 }
1172
1173 static int coda_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1174 {
1175 struct coda_ctx *ctx = fh_to_ctx(fh);
1176 struct v4l2_fract *tpf;
1177
1178 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1179 return -EINVAL;
1180
1181 a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
1182 tpf = &a->parm.output.timeperframe;
1183 coda_approximate_timeperframe(tpf);
1184 ctx->params.framerate = coda_timeperframe_to_frate(tpf);
1185
1186 return 0;
1187 }
1188
1189 static int coda_subscribe_event(struct v4l2_fh *fh,
1190 const struct v4l2_event_subscription *sub)
1191 {
1192 switch (sub->type) {
1193 case V4L2_EVENT_EOS:
1194 return v4l2_event_subscribe(fh, sub, 0, NULL);
1195 default:
1196 return v4l2_ctrl_subscribe_event(fh, sub);
1197 }
1198 }
1199
1200 static const struct v4l2_ioctl_ops coda_ioctl_ops = {
1201 .vidioc_querycap = coda_querycap,
1202
1203 .vidioc_enum_fmt_vid_cap = coda_enum_fmt,
1204 .vidioc_g_fmt_vid_cap = coda_g_fmt,
1205 .vidioc_try_fmt_vid_cap = coda_try_fmt_vid_cap,
1206 .vidioc_s_fmt_vid_cap = coda_s_fmt_vid_cap,
1207
1208 .vidioc_enum_fmt_vid_out = coda_enum_fmt,
1209 .vidioc_g_fmt_vid_out = coda_g_fmt,
1210 .vidioc_try_fmt_vid_out = coda_try_fmt_vid_out,
1211 .vidioc_s_fmt_vid_out = coda_s_fmt_vid_out,
1212
1213 .vidioc_reqbufs = coda_reqbufs,
1214 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
1215
1216 .vidioc_qbuf = coda_qbuf,
1217 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
1218 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
1219 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
1220 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
1221
1222 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
1223 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
1224
1225 .vidioc_g_selection = coda_g_selection,
1226 .vidioc_s_selection = coda_s_selection,
1227
1228 .vidioc_try_encoder_cmd = coda_try_encoder_cmd,
1229 .vidioc_encoder_cmd = coda_encoder_cmd,
1230 .vidioc_try_decoder_cmd = coda_try_decoder_cmd,
1231 .vidioc_decoder_cmd = coda_decoder_cmd,
1232
1233 .vidioc_g_parm = coda_g_parm,
1234 .vidioc_s_parm = coda_s_parm,
1235
1236 .vidioc_enum_frameintervals = coda_enum_frameintervals,
1237
1238 .vidioc_subscribe_event = coda_subscribe_event,
1239 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1240 };
1241
1242 /*
1243 * Mem-to-mem operations.
1244 */
1245
1246 static void coda_device_run(void *m2m_priv)
1247 {
1248 struct coda_ctx *ctx = m2m_priv;
1249 struct coda_dev *dev = ctx->dev;
1250
1251 queue_work(dev->workqueue, &ctx->pic_run_work);
1252 }
1253
1254 static void coda_pic_run_work(struct work_struct *work)
1255 {
1256 struct coda_ctx *ctx = container_of(work, struct coda_ctx, pic_run_work);
1257 struct coda_dev *dev = ctx->dev;
1258 int ret;
1259
1260 mutex_lock(&ctx->buffer_mutex);
1261 mutex_lock(&dev->coda_mutex);
1262
1263 ret = ctx->ops->prepare_run(ctx);
1264 if (ret < 0 && ctx->inst_type == CODA_INST_DECODER) {
1265 mutex_unlock(&dev->coda_mutex);
1266 mutex_unlock(&ctx->buffer_mutex);
1267 /* job_finish scheduled by prepare_decode */
1268 return;
1269 }
1270
1271 if (!wait_for_completion_timeout(&ctx->completion,
1272 msecs_to_jiffies(1000))) {
1273 dev_err(&dev->plat_dev->dev, "CODA PIC_RUN timeout\n");
1274
1275 ctx->hold = true;
1276
1277 coda_hw_reset(ctx);
1278
1279 if (ctx->ops->run_timeout)
1280 ctx->ops->run_timeout(ctx);
1281 } else if (!ctx->aborting) {
1282 ctx->ops->finish_run(ctx);
1283 }
1284
1285 if ((ctx->aborting || (!ctx->streamon_cap && !ctx->streamon_out)) &&
1286 ctx->ops->seq_end_work)
1287 queue_work(dev->workqueue, &ctx->seq_end_work);
1288
1289 mutex_unlock(&dev->coda_mutex);
1290 mutex_unlock(&ctx->buffer_mutex);
1291
1292 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
1293 }
1294
1295 static int coda_job_ready(void *m2m_priv)
1296 {
1297 struct coda_ctx *ctx = m2m_priv;
1298 int src_bufs = v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx);
1299
1300 /*
1301 * For both 'P' and 'key' frame cases 1 picture
1302 * and 1 frame are needed. In the decoder case,
1303 * the compressed frame can be in the bitstream.
1304 */
1305 if (!src_bufs && ctx->inst_type != CODA_INST_DECODER) {
1306 coda_dbg(1, ctx, "not ready: not enough vid-out buffers.\n");
1307 return 0;
1308 }
1309
1310 if (!v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx)) {
1311 coda_dbg(1, ctx, "not ready: not enough vid-cap buffers.\n");
1312 return 0;
1313 }
1314
1315 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1316 bool stream_end = ctx->bit_stream_param &
1317 CODA_BIT_STREAM_END_FLAG;
1318 int num_metas = ctx->num_metas;
1319 struct coda_buffer_meta *meta;
1320 unsigned int count;
1321
1322 count = hweight32(ctx->frm_dis_flg);
1323 if (ctx->use_vdoa && count >= (ctx->num_internal_frames - 1)) {
1324 coda_dbg(1, ctx,
1325 "not ready: all internal buffers in use: %d/%d (0x%x)",
1326 count, ctx->num_internal_frames,
1327 ctx->frm_dis_flg);
1328 return 0;
1329 }
1330
1331 if (ctx->hold && !src_bufs) {
1332 coda_dbg(1, ctx,
1333 "not ready: on hold for more buffers.\n");
1334 return 0;
1335 }
1336
1337 if (!stream_end && (num_metas + src_bufs) < 2) {
1338 coda_dbg(1, ctx,
1339 "not ready: need 2 buffers available (queue:%d + bitstream:%d)\n",
1340 num_metas, src_bufs);
1341 return 0;
1342 }
1343
1344 meta = list_first_entry(&ctx->buffer_meta_list,
1345 struct coda_buffer_meta, list);
1346 if (!coda_bitstream_can_fetch_past(ctx, meta->end) &&
1347 !stream_end) {
1348 coda_dbg(1, ctx,
1349 "not ready: not enough bitstream data to read past %u (%u)\n",
1350 meta->end, ctx->bitstream_fifo.kfifo.in);
1351 return 0;
1352 }
1353 }
1354
1355 if (ctx->aborting) {
1356 coda_dbg(1, ctx, "not ready: aborting\n");
1357 return 0;
1358 }
1359
1360 coda_dbg(1, ctx, "job ready\n");
1361
1362 return 1;
1363 }
1364
1365 static void coda_job_abort(void *priv)
1366 {
1367 struct coda_ctx *ctx = priv;
1368
1369 ctx->aborting = 1;
1370
1371 coda_dbg(1, ctx, "job abort\n");
1372 }
1373
1374 static const struct v4l2_m2m_ops coda_m2m_ops = {
1375 .device_run = coda_device_run,
1376 .job_ready = coda_job_ready,
1377 .job_abort = coda_job_abort,
1378 };
1379
1380 static void set_default_params(struct coda_ctx *ctx)
1381 {
1382 unsigned int max_w, max_h, usize, csize;
1383
1384 ctx->codec = coda_find_codec(ctx->dev, ctx->cvd->src_formats[0],
1385 ctx->cvd->dst_formats[0]);
1386 max_w = min(ctx->codec->max_w, 1920U);
1387 max_h = min(ctx->codec->max_h, 1088U);
1388 usize = max_w * max_h * 3 / 2;
1389 csize = coda_estimate_sizeimage(ctx, usize, max_w, max_h);
1390
1391 ctx->params.codec_mode = ctx->codec->mode;
1392 if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_JPEG)
1393 ctx->colorspace = V4L2_COLORSPACE_JPEG;
1394 else
1395 ctx->colorspace = V4L2_COLORSPACE_REC709;
1396 ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
1397 ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
1398 ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
1399 ctx->params.framerate = 30;
1400
1401 /* Default formats for output and input queues */
1402 ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->cvd->src_formats[0];
1403 ctx->q_data[V4L2_M2M_DST].fourcc = ctx->cvd->dst_formats[0];
1404 ctx->q_data[V4L2_M2M_SRC].width = max_w;
1405 ctx->q_data[V4L2_M2M_SRC].height = max_h;
1406 ctx->q_data[V4L2_M2M_DST].width = max_w;
1407 ctx->q_data[V4L2_M2M_DST].height = max_h;
1408 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_YUV420) {
1409 ctx->q_data[V4L2_M2M_SRC].bytesperline = max_w;
1410 ctx->q_data[V4L2_M2M_SRC].sizeimage = usize;
1411 ctx->q_data[V4L2_M2M_DST].bytesperline = 0;
1412 ctx->q_data[V4L2_M2M_DST].sizeimage = csize;
1413 } else {
1414 ctx->q_data[V4L2_M2M_SRC].bytesperline = 0;
1415 ctx->q_data[V4L2_M2M_SRC].sizeimage = csize;
1416 ctx->q_data[V4L2_M2M_DST].bytesperline = max_w;
1417 ctx->q_data[V4L2_M2M_DST].sizeimage = usize;
1418 }
1419 ctx->q_data[V4L2_M2M_SRC].rect.width = max_w;
1420 ctx->q_data[V4L2_M2M_SRC].rect.height = max_h;
1421 ctx->q_data[V4L2_M2M_DST].rect.width = max_w;
1422 ctx->q_data[V4L2_M2M_DST].rect.height = max_h;
1423
1424 /*
1425 * Since the RBC2AXI logic only supports a single chroma plane,
1426 * macroblock tiling only works for to NV12 pixel format.
1427 */
1428 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP;
1429 }
1430
1431 /*
1432 * Queue operations
1433 */
1434 static int coda_queue_setup(struct vb2_queue *vq,
1435 unsigned int *nbuffers, unsigned int *nplanes,
1436 unsigned int sizes[], struct device *alloc_devs[])
1437 {
1438 struct coda_ctx *ctx = vb2_get_drv_priv(vq);
1439 struct coda_q_data *q_data;
1440 unsigned int size;
1441
1442 q_data = get_q_data(ctx, vq->type);
1443 size = q_data->sizeimage;
1444
1445 *nplanes = 1;
1446 sizes[0] = size;
1447
1448 coda_dbg(1, ctx, "get %d buffer(s) of size %d each.\n", *nbuffers,
1449 size);
1450
1451 return 0;
1452 }
1453
1454 static int coda_buf_prepare(struct vb2_buffer *vb)
1455 {
1456 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1457 struct coda_q_data *q_data;
1458
1459 q_data = get_q_data(ctx, vb->vb2_queue->type);
1460
1461 if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
1462 v4l2_warn(&ctx->dev->v4l2_dev,
1463 "%s data will not fit into plane (%lu < %lu)\n",
1464 __func__, vb2_plane_size(vb, 0),
1465 (long)q_data->sizeimage);
1466 return -EINVAL;
1467 }
1468
1469 return 0;
1470 }
1471
1472 static void coda_update_menu_ctrl(struct v4l2_ctrl *ctrl, int value)
1473 {
1474 if (!ctrl)
1475 return;
1476
1477 v4l2_ctrl_lock(ctrl);
1478
1479 /*
1480 * Extend the control range if the parsed stream contains a known but
1481 * unsupported value or level.
1482 */
1483 if (value > ctrl->maximum) {
1484 __v4l2_ctrl_modify_range(ctrl, ctrl->minimum, value,
1485 ctrl->menu_skip_mask & ~(1 << value),
1486 ctrl->default_value);
1487 } else if (value < ctrl->minimum) {
1488 __v4l2_ctrl_modify_range(ctrl, value, ctrl->maximum,
1489 ctrl->menu_skip_mask & ~(1 << value),
1490 ctrl->default_value);
1491 }
1492
1493 __v4l2_ctrl_s_ctrl(ctrl, value);
1494
1495 v4l2_ctrl_unlock(ctrl);
1496 }
1497
1498 static void coda_update_h264_profile_ctrl(struct coda_ctx *ctx)
1499 {
1500 const char * const *profile_names;
1501 int profile;
1502
1503 profile = coda_h264_profile(ctx->params.h264_profile_idc);
1504 if (profile < 0) {
1505 v4l2_warn(&ctx->dev->v4l2_dev, "Invalid H264 Profile: %u\n",
1506 ctx->params.h264_profile_idc);
1507 return;
1508 }
1509
1510 coda_update_menu_ctrl(ctx->h264_profile_ctrl, profile);
1511
1512 profile_names = v4l2_ctrl_get_menu(V4L2_CID_MPEG_VIDEO_H264_PROFILE);
1513
1514 coda_dbg(1, ctx, "Parsed H264 Profile: %s\n", profile_names[profile]);
1515 }
1516
1517 static void coda_update_h264_level_ctrl(struct coda_ctx *ctx)
1518 {
1519 const char * const *level_names;
1520 int level;
1521
1522 level = coda_h264_level(ctx->params.h264_level_idc);
1523 if (level < 0) {
1524 v4l2_warn(&ctx->dev->v4l2_dev, "Invalid H264 Level: %u\n",
1525 ctx->params.h264_level_idc);
1526 return;
1527 }
1528
1529 coda_update_menu_ctrl(ctx->h264_level_ctrl, level);
1530
1531 level_names = v4l2_ctrl_get_menu(V4L2_CID_MPEG_VIDEO_H264_LEVEL);
1532
1533 coda_dbg(1, ctx, "Parsed H264 Level: %s\n", level_names[level]);
1534 }
1535
1536 static void coda_buf_queue(struct vb2_buffer *vb)
1537 {
1538 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1539 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1540 struct vb2_queue *vq = vb->vb2_queue;
1541 struct coda_q_data *q_data;
1542
1543 q_data = get_q_data(ctx, vb->vb2_queue->type);
1544
1545 /*
1546 * In the decoder case, immediately try to copy the buffer into the
1547 * bitstream ringbuffer and mark it as ready to be dequeued.
1548 */
1549 if (ctx->bitstream.size && vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1550 /*
1551 * For backwards compatibility, queuing an empty buffer marks
1552 * the stream end
1553 */
1554 if (vb2_get_plane_payload(vb, 0) == 0)
1555 coda_bit_stream_end_flag(ctx);
1556
1557 if (q_data->fourcc == V4L2_PIX_FMT_H264) {
1558 /*
1559 * Unless already done, try to obtain profile_idc and
1560 * level_idc from the SPS header. This allows to decide
1561 * whether to enable reordering during sequence
1562 * initialization.
1563 */
1564 if (!ctx->params.h264_profile_idc) {
1565 coda_sps_parse_profile(ctx, vb);
1566 coda_update_h264_profile_ctrl(ctx);
1567 coda_update_h264_level_ctrl(ctx);
1568 }
1569 }
1570
1571 mutex_lock(&ctx->bitstream_mutex);
1572 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
1573 if (vb2_is_streaming(vb->vb2_queue))
1574 /* This set buf->sequence = ctx->qsequence++ */
1575 coda_fill_bitstream(ctx, NULL);
1576 mutex_unlock(&ctx->bitstream_mutex);
1577 } else {
1578 if (ctx->inst_type == CODA_INST_ENCODER &&
1579 vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1580 vbuf->sequence = ctx->qsequence++;
1581 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
1582 }
1583 }
1584
1585 int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
1586 size_t size, const char *name, struct dentry *parent)
1587 {
1588 buf->vaddr = dma_alloc_coherent(&dev->plat_dev->dev, size, &buf->paddr,
1589 GFP_KERNEL);
1590 if (!buf->vaddr) {
1591 v4l2_err(&dev->v4l2_dev,
1592 "Failed to allocate %s buffer of size %zu\n",
1593 name, size);
1594 return -ENOMEM;
1595 }
1596
1597 buf->size = size;
1598
1599 if (name && parent) {
1600 buf->blob.data = buf->vaddr;
1601 buf->blob.size = size;
1602 buf->dentry = debugfs_create_blob(name, 0644, parent,
1603 &buf->blob);
1604 if (!buf->dentry)
1605 dev_warn(&dev->plat_dev->dev,
1606 "failed to create debugfs entry %s\n", name);
1607 }
1608
1609 return 0;
1610 }
1611
1612 void coda_free_aux_buf(struct coda_dev *dev,
1613 struct coda_aux_buf *buf)
1614 {
1615 if (buf->vaddr) {
1616 dma_free_coherent(&dev->plat_dev->dev, buf->size,
1617 buf->vaddr, buf->paddr);
1618 buf->vaddr = NULL;
1619 buf->size = 0;
1620 debugfs_remove(buf->dentry);
1621 buf->dentry = NULL;
1622 }
1623 }
1624
1625 static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
1626 {
1627 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1628 struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev;
1629 struct coda_q_data *q_data_src, *q_data_dst;
1630 struct v4l2_m2m_buffer *m2m_buf, *tmp;
1631 struct vb2_v4l2_buffer *buf;
1632 struct list_head list;
1633 int ret = 0;
1634
1635 if (count < 1)
1636 return -EINVAL;
1637
1638 coda_dbg(1, ctx, "start streaming %s\n", v4l2_type_names[q->type]);
1639
1640 INIT_LIST_HEAD(&list);
1641
1642 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1643 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1644 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1645 /* copy the buffers that were queued before streamon */
1646 mutex_lock(&ctx->bitstream_mutex);
1647 coda_fill_bitstream(ctx, &list);
1648 mutex_unlock(&ctx->bitstream_mutex);
1649
1650 if (coda_get_bitstream_payload(ctx) < 512) {
1651 ret = -EINVAL;
1652 goto err;
1653 }
1654 }
1655
1656 ctx->streamon_out = 1;
1657 } else {
1658 ctx->streamon_cap = 1;
1659 }
1660
1661 /* Don't start the coda unless both queues are on */
1662 if (!(ctx->streamon_out && ctx->streamon_cap))
1663 goto out;
1664
1665 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1666 if ((q_data_src->rect.width != q_data_dst->width &&
1667 round_up(q_data_src->rect.width, 16) != q_data_dst->width) ||
1668 (q_data_src->rect.height != q_data_dst->height &&
1669 round_up(q_data_src->rect.height, 16) != q_data_dst->height)) {
1670 v4l2_err(v4l2_dev, "can't convert %dx%d to %dx%d\n",
1671 q_data_src->rect.width, q_data_src->rect.height,
1672 q_data_dst->width, q_data_dst->height);
1673 ret = -EINVAL;
1674 goto err;
1675 }
1676
1677 /* Allow BIT decoder device_run with no new buffers queued */
1678 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
1679 v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true);
1680
1681 ctx->gopcounter = ctx->params.gop_size - 1;
1682
1683 ctx->codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
1684 q_data_dst->fourcc);
1685 if (!ctx->codec) {
1686 v4l2_err(v4l2_dev, "couldn't tell instance type.\n");
1687 ret = -EINVAL;
1688 goto err;
1689 }
1690
1691 if (q_data_dst->fourcc == V4L2_PIX_FMT_JPEG)
1692 ctx->params.gop_size = 1;
1693 ctx->gopcounter = ctx->params.gop_size - 1;
1694
1695 ret = ctx->ops->start_streaming(ctx);
1696 if (ctx->inst_type == CODA_INST_DECODER) {
1697 if (ret == -EAGAIN)
1698 goto out;
1699 }
1700 if (ret < 0)
1701 goto err;
1702
1703 out:
1704 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1705 list_for_each_entry_safe(m2m_buf, tmp, &list, list) {
1706 list_del(&m2m_buf->list);
1707 v4l2_m2m_buf_done(&m2m_buf->vb, VB2_BUF_STATE_DONE);
1708 }
1709 }
1710 return 0;
1711
1712 err:
1713 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1714 list_for_each_entry_safe(m2m_buf, tmp, &list, list) {
1715 list_del(&m2m_buf->list);
1716 v4l2_m2m_buf_done(&m2m_buf->vb, VB2_BUF_STATE_QUEUED);
1717 }
1718 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1719 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1720 } else {
1721 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1722 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1723 }
1724 return ret;
1725 }
1726
1727 static void coda_stop_streaming(struct vb2_queue *q)
1728 {
1729 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1730 struct coda_dev *dev = ctx->dev;
1731 struct vb2_v4l2_buffer *buf;
1732 bool stop;
1733
1734 stop = ctx->streamon_out && ctx->streamon_cap;
1735
1736 coda_dbg(1, ctx, "stop streaming %s\n", v4l2_type_names[q->type]);
1737
1738 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1739 ctx->streamon_out = 0;
1740
1741 coda_bit_stream_end_flag(ctx);
1742
1743 ctx->qsequence = 0;
1744
1745 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1746 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1747 } else {
1748 ctx->streamon_cap = 0;
1749
1750 ctx->osequence = 0;
1751 ctx->sequence_offset = 0;
1752
1753 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1754 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1755 }
1756
1757 if (stop) {
1758 struct coda_buffer_meta *meta;
1759
1760 if (ctx->ops->seq_end_work) {
1761 queue_work(dev->workqueue, &ctx->seq_end_work);
1762 flush_work(&ctx->seq_end_work);
1763 }
1764 spin_lock(&ctx->buffer_meta_lock);
1765 while (!list_empty(&ctx->buffer_meta_list)) {
1766 meta = list_first_entry(&ctx->buffer_meta_list,
1767 struct coda_buffer_meta, list);
1768 list_del(&meta->list);
1769 kfree(meta);
1770 }
1771 ctx->num_metas = 0;
1772 spin_unlock(&ctx->buffer_meta_lock);
1773 kfifo_init(&ctx->bitstream_fifo,
1774 ctx->bitstream.vaddr, ctx->bitstream.size);
1775 ctx->runcounter = 0;
1776 ctx->aborting = 0;
1777 ctx->hold = false;
1778 }
1779
1780 if (!ctx->streamon_out && !ctx->streamon_cap)
1781 ctx->bit_stream_param &= ~CODA_BIT_STREAM_END_FLAG;
1782 }
1783
1784 static const struct vb2_ops coda_qops = {
1785 .queue_setup = coda_queue_setup,
1786 .buf_prepare = coda_buf_prepare,
1787 .buf_queue = coda_buf_queue,
1788 .start_streaming = coda_start_streaming,
1789 .stop_streaming = coda_stop_streaming,
1790 .wait_prepare = vb2_ops_wait_prepare,
1791 .wait_finish = vb2_ops_wait_finish,
1792 };
1793
1794 static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
1795 {
1796 struct coda_ctx *ctx =
1797 container_of(ctrl->handler, struct coda_ctx, ctrls);
1798
1799 coda_dbg(1, ctx, "s_ctrl: id = 0x%x, name = \"%s\", val = %d\n",
1800 ctrl->id, ctrl->name, ctrl->val);
1801
1802 switch (ctrl->id) {
1803 case V4L2_CID_HFLIP:
1804 if (ctrl->val)
1805 ctx->params.rot_mode |= CODA_MIR_HOR;
1806 else
1807 ctx->params.rot_mode &= ~CODA_MIR_HOR;
1808 break;
1809 case V4L2_CID_VFLIP:
1810 if (ctrl->val)
1811 ctx->params.rot_mode |= CODA_MIR_VER;
1812 else
1813 ctx->params.rot_mode &= ~CODA_MIR_VER;
1814 break;
1815 case V4L2_CID_MPEG_VIDEO_BITRATE:
1816 ctx->params.bitrate = ctrl->val / 1000;
1817 break;
1818 case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
1819 ctx->params.gop_size = ctrl->val;
1820 break;
1821 case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
1822 ctx->params.h264_intra_qp = ctrl->val;
1823 break;
1824 case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
1825 ctx->params.h264_inter_qp = ctrl->val;
1826 break;
1827 case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
1828 ctx->params.h264_min_qp = ctrl->val;
1829 break;
1830 case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
1831 ctx->params.h264_max_qp = ctrl->val;
1832 break;
1833 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA:
1834 ctx->params.h264_slice_alpha_c0_offset_div2 = ctrl->val;
1835 break;
1836 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA:
1837 ctx->params.h264_slice_beta_offset_div2 = ctrl->val;
1838 break;
1839 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
1840 ctx->params.h264_disable_deblocking_filter_idc = ctrl->val;
1841 break;
1842 case V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION:
1843 ctx->params.h264_constrained_intra_pred_flag = ctrl->val;
1844 break;
1845 case V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET:
1846 ctx->params.h264_chroma_qp_index_offset = ctrl->val;
1847 break;
1848 case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
1849 /* TODO: switch between baseline and constrained baseline */
1850 if (ctx->inst_type == CODA_INST_ENCODER)
1851 ctx->params.h264_profile_idc = 66;
1852 break;
1853 case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
1854 /* nothing to do, this is set by the encoder */
1855 break;
1856 case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
1857 ctx->params.mpeg4_intra_qp = ctrl->val;
1858 break;
1859 case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
1860 ctx->params.mpeg4_inter_qp = ctrl->val;
1861 break;
1862 case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE:
1863 case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL:
1864 /* nothing to do, these are fixed */
1865 break;
1866 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
1867 ctx->params.slice_mode = ctrl->val;
1868 break;
1869 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
1870 ctx->params.slice_max_mb = ctrl->val;
1871 break;
1872 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
1873 ctx->params.slice_max_bits = ctrl->val * 8;
1874 break;
1875 case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
1876 break;
1877 case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB:
1878 ctx->params.intra_refresh = ctrl->val;
1879 break;
1880 case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
1881 ctx->params.force_ipicture = true;
1882 break;
1883 case V4L2_CID_JPEG_COMPRESSION_QUALITY:
1884 coda_set_jpeg_compression_quality(ctx, ctrl->val);
1885 break;
1886 case V4L2_CID_JPEG_RESTART_INTERVAL:
1887 ctx->params.jpeg_restart_interval = ctrl->val;
1888 break;
1889 case V4L2_CID_MPEG_VIDEO_VBV_DELAY:
1890 ctx->params.vbv_delay = ctrl->val;
1891 break;
1892 case V4L2_CID_MPEG_VIDEO_VBV_SIZE:
1893 ctx->params.vbv_size = min(ctrl->val * 8192, 0x7fffffff);
1894 break;
1895 default:
1896 coda_dbg(1, ctx, "Invalid control, id=%d, val=%d\n",
1897 ctrl->id, ctrl->val);
1898 return -EINVAL;
1899 }
1900
1901 return 0;
1902 }
1903
1904 static const struct v4l2_ctrl_ops coda_ctrl_ops = {
1905 .s_ctrl = coda_s_ctrl,
1906 };
1907
1908 static void coda_encode_ctrls(struct coda_ctx *ctx)
1909 {
1910 int max_gop_size = (ctx->dev->devtype->product == CODA_DX6) ? 60 : 99;
1911
1912 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1913 V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1000, 0);
1914 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1915 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 0, max_gop_size, 1, 16);
1916 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1917 V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 0, 51, 1, 25);
1918 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1919 V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 0, 51, 1, 25);
1920 if (ctx->dev->devtype->product != CODA_960) {
1921 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1922 V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 51, 1, 12);
1923 }
1924 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1925 V4L2_CID_MPEG_VIDEO_H264_MAX_QP, 0, 51, 1, 51);
1926 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1927 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA, -6, 6, 1, 0);
1928 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1929 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA, -6, 6, 1, 0);
1930 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1931 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
1932 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY,
1933 0x0, V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
1934 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1935 V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION, 0, 1, 1,
1936 0);
1937 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1938 V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET, -12, 12, 1, 0);
1939 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1940 V4L2_CID_MPEG_VIDEO_H264_PROFILE,
1941 V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE, 0x0,
1942 V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE);
1943 if (ctx->dev->devtype->product == CODA_HX4 ||
1944 ctx->dev->devtype->product == CODA_7541) {
1945 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1946 V4L2_CID_MPEG_VIDEO_H264_LEVEL,
1947 V4L2_MPEG_VIDEO_H264_LEVEL_3_1,
1948 ~((1 << V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
1949 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
1950 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_1)),
1951 V4L2_MPEG_VIDEO_H264_LEVEL_3_1);
1952 }
1953 if (ctx->dev->devtype->product == CODA_960) {
1954 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1955 V4L2_CID_MPEG_VIDEO_H264_LEVEL,
1956 V4L2_MPEG_VIDEO_H264_LEVEL_4_0,
1957 ~((1 << V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
1958 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
1959 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_1) |
1960 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_2) |
1961 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_4_0)),
1962 V4L2_MPEG_VIDEO_H264_LEVEL_4_0);
1963 }
1964 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1965 V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
1966 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1967 V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
1968 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1969 V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE,
1970 V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE, 0x0,
1971 V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE);
1972 if (ctx->dev->devtype->product == CODA_HX4 ||
1973 ctx->dev->devtype->product == CODA_7541 ||
1974 ctx->dev->devtype->product == CODA_960) {
1975 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1976 V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL,
1977 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5,
1978 ~(1 << V4L2_MPEG_VIDEO_MPEG4_LEVEL_5),
1979 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5);
1980 }
1981 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1982 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
1983 V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES, 0x0,
1984 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
1985 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1986 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
1987 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1988 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1,
1989 500);
1990 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1991 V4L2_CID_MPEG_VIDEO_HEADER_MODE,
1992 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
1993 (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE),
1994 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
1995 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1996 V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB, 0,
1997 1920 * 1088 / 256, 1, 0);
1998 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1999 V4L2_CID_MPEG_VIDEO_VBV_DELAY, 0, 0x7fff, 1, 0);
2000 /*
2001 * The maximum VBV size value is 0x7fffffff bits,
2002 * one bit less than 262144 KiB
2003 */
2004 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2005 V4L2_CID_MPEG_VIDEO_VBV_SIZE, 0, 262144, 1, 0);
2006 }
2007
2008 static void coda_jpeg_encode_ctrls(struct coda_ctx *ctx)
2009 {
2010 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2011 V4L2_CID_JPEG_COMPRESSION_QUALITY, 5, 100, 1, 50);
2012 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2013 V4L2_CID_JPEG_RESTART_INTERVAL, 0, 100, 1, 0);
2014 }
2015
2016 static void coda_decode_ctrls(struct coda_ctx *ctx)
2017 {
2018 u64 mask;
2019 u8 max;
2020
2021 ctx->h264_profile_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2022 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_H264_PROFILE,
2023 V4L2_MPEG_VIDEO_H264_PROFILE_HIGH,
2024 ~((1 << V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE) |
2025 (1 << V4L2_MPEG_VIDEO_H264_PROFILE_MAIN) |
2026 (1 << V4L2_MPEG_VIDEO_H264_PROFILE_HIGH)),
2027 V4L2_MPEG_VIDEO_H264_PROFILE_HIGH);
2028 if (ctx->h264_profile_ctrl)
2029 ctx->h264_profile_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2030
2031 if (ctx->dev->devtype->product == CODA_HX4 ||
2032 ctx->dev->devtype->product == CODA_7541) {
2033 max = V4L2_MPEG_VIDEO_H264_LEVEL_4_0;
2034 mask = ~((1 << V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
2035 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
2036 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_1) |
2037 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_2) |
2038 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_4_0));
2039 } else if (ctx->dev->devtype->product == CODA_960) {
2040 max = V4L2_MPEG_VIDEO_H264_LEVEL_4_1;
2041 mask = ~((1 << V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
2042 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
2043 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_1) |
2044 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_2) |
2045 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_4_0) |
2046 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_4_1));
2047 } else {
2048 return;
2049 }
2050 ctx->h264_level_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2051 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_H264_LEVEL, max, mask,
2052 max);
2053 if (ctx->h264_level_ctrl)
2054 ctx->h264_level_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2055 }
2056
2057 static int coda_ctrls_setup(struct coda_ctx *ctx)
2058 {
2059 v4l2_ctrl_handler_init(&ctx->ctrls, 2);
2060
2061 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2062 V4L2_CID_HFLIP, 0, 1, 1, 0);
2063 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2064 V4L2_CID_VFLIP, 0, 1, 1, 0);
2065 if (ctx->inst_type == CODA_INST_ENCODER) {
2066 if (ctx->cvd->dst_formats[0] == V4L2_PIX_FMT_JPEG)
2067 coda_jpeg_encode_ctrls(ctx);
2068 else
2069 coda_encode_ctrls(ctx);
2070 } else {
2071 if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_H264)
2072 coda_decode_ctrls(ctx);
2073 }
2074
2075 if (ctx->ctrls.error) {
2076 v4l2_err(&ctx->dev->v4l2_dev,
2077 "control initialization error (%d)",
2078 ctx->ctrls.error);
2079 return -EINVAL;
2080 }
2081
2082 return v4l2_ctrl_handler_setup(&ctx->ctrls);
2083 }
2084
2085 static int coda_queue_init(struct coda_ctx *ctx, struct vb2_queue *vq)
2086 {
2087 vq->drv_priv = ctx;
2088 vq->ops = &coda_qops;
2089 vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
2090 vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
2091 vq->lock = &ctx->dev->dev_mutex;
2092 /* One way to indicate end-of-stream for coda is to set the
2093 * bytesused == 0. However by default videobuf2 handles bytesused
2094 * equal to 0 as a special case and changes its value to the size
2095 * of the buffer. Set the allow_zero_bytesused flag, so
2096 * that videobuf2 will keep the value of bytesused intact.
2097 */
2098 vq->allow_zero_bytesused = 1;
2099 /*
2100 * We might be fine with no buffers on some of the queues, but that
2101 * would need to be reflected in job_ready(). Currently we expect all
2102 * queues to have at least one buffer queued.
2103 */
2104 vq->min_buffers_needed = 1;
2105 vq->dev = &ctx->dev->plat_dev->dev;
2106
2107 return vb2_queue_init(vq);
2108 }
2109
2110 int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
2111 struct vb2_queue *dst_vq)
2112 {
2113 int ret;
2114
2115 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2116 src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2117 src_vq->mem_ops = &vb2_dma_contig_memops;
2118
2119 ret = coda_queue_init(priv, src_vq);
2120 if (ret)
2121 return ret;
2122
2123 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2124 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2125 dst_vq->mem_ops = &vb2_dma_contig_memops;
2126
2127 return coda_queue_init(priv, dst_vq);
2128 }
2129
2130 int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
2131 struct vb2_queue *dst_vq)
2132 {
2133 int ret;
2134
2135 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2136 src_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
2137 src_vq->mem_ops = &vb2_vmalloc_memops;
2138
2139 ret = coda_queue_init(priv, src_vq);
2140 if (ret)
2141 return ret;
2142
2143 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2144 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2145 dst_vq->mem_ops = &vb2_dma_contig_memops;
2146
2147 return coda_queue_init(priv, dst_vq);
2148 }
2149
2150 /*
2151 * File operations
2152 */
2153
2154 static int coda_open(struct file *file)
2155 {
2156 struct video_device *vdev = video_devdata(file);
2157 struct coda_dev *dev = video_get_drvdata(vdev);
2158 struct coda_ctx *ctx;
2159 unsigned int max = ~0;
2160 char *name;
2161 int ret;
2162 int idx;
2163
2164 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
2165 if (!ctx)
2166 return -ENOMEM;
2167
2168 if (dev->devtype->product == CODA_DX6)
2169 max = CODADX6_MAX_INSTANCES - 1;
2170 idx = ida_alloc_max(&dev->ida, max, GFP_KERNEL);
2171 if (idx < 0) {
2172 ret = idx;
2173 goto err_coda_max;
2174 }
2175
2176 name = kasprintf(GFP_KERNEL, "context%d", idx);
2177 if (!name) {
2178 ret = -ENOMEM;
2179 goto err_coda_name_init;
2180 }
2181
2182 ctx->debugfs_entry = debugfs_create_dir(name, dev->debugfs_root);
2183 kfree(name);
2184
2185 ctx->cvd = to_coda_video_device(vdev);
2186 ctx->inst_type = ctx->cvd->type;
2187 ctx->ops = ctx->cvd->ops;
2188 ctx->use_bit = !ctx->cvd->direct;
2189 init_completion(&ctx->completion);
2190 INIT_WORK(&ctx->pic_run_work, coda_pic_run_work);
2191 if (ctx->ops->seq_end_work)
2192 INIT_WORK(&ctx->seq_end_work, ctx->ops->seq_end_work);
2193 v4l2_fh_init(&ctx->fh, video_devdata(file));
2194 file->private_data = &ctx->fh;
2195 v4l2_fh_add(&ctx->fh);
2196 ctx->dev = dev;
2197 ctx->idx = idx;
2198
2199 coda_dbg(1, ctx, "open instance (%p)\n", ctx);
2200
2201 switch (dev->devtype->product) {
2202 case CODA_960:
2203 /*
2204 * Enabling the BWB when decoding can hang the firmware with
2205 * certain streams. The issue was tracked as ENGR00293425 by
2206 * Freescale. As a workaround, disable BWB for all decoders.
2207 * The enable_bwb module parameter allows to override this.
2208 */
2209 if (enable_bwb || ctx->inst_type == CODA_INST_ENCODER)
2210 ctx->frame_mem_ctrl = CODA9_FRAME_ENABLE_BWB;
2211 /* fallthrough */
2212 case CODA_HX4:
2213 case CODA_7541:
2214 ctx->reg_idx = 0;
2215 break;
2216 default:
2217 ctx->reg_idx = idx;
2218 }
2219 if (ctx->dev->vdoa && !disable_vdoa) {
2220 ctx->vdoa = vdoa_context_create(dev->vdoa);
2221 if (!ctx->vdoa)
2222 v4l2_warn(&dev->v4l2_dev,
2223 "Failed to create vdoa context: not using vdoa");
2224 }
2225 ctx->use_vdoa = false;
2226
2227 /* Power up and upload firmware if necessary */
2228 ret = pm_runtime_get_sync(&dev->plat_dev->dev);
2229 if (ret < 0) {
2230 v4l2_err(&dev->v4l2_dev, "failed to power up: %d\n", ret);
2231 goto err_pm_get;
2232 }
2233
2234 ret = clk_prepare_enable(dev->clk_per);
2235 if (ret)
2236 goto err_clk_per;
2237
2238 ret = clk_prepare_enable(dev->clk_ahb);
2239 if (ret)
2240 goto err_clk_ahb;
2241
2242 set_default_params(ctx);
2243 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
2244 ctx->ops->queue_init);
2245 if (IS_ERR(ctx->fh.m2m_ctx)) {
2246 ret = PTR_ERR(ctx->fh.m2m_ctx);
2247
2248 v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
2249 __func__, ret);
2250 goto err_ctx_init;
2251 }
2252
2253 ret = coda_ctrls_setup(ctx);
2254 if (ret) {
2255 v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
2256 goto err_ctrls_setup;
2257 }
2258
2259 ctx->fh.ctrl_handler = &ctx->ctrls;
2260
2261 mutex_init(&ctx->bitstream_mutex);
2262 mutex_init(&ctx->buffer_mutex);
2263 INIT_LIST_HEAD(&ctx->buffer_meta_list);
2264 spin_lock_init(&ctx->buffer_meta_lock);
2265
2266 return 0;
2267
2268 err_ctrls_setup:
2269 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
2270 err_ctx_init:
2271 clk_disable_unprepare(dev->clk_ahb);
2272 err_clk_ahb:
2273 clk_disable_unprepare(dev->clk_per);
2274 err_clk_per:
2275 pm_runtime_put_sync(&dev->plat_dev->dev);
2276 err_pm_get:
2277 v4l2_fh_del(&ctx->fh);
2278 v4l2_fh_exit(&ctx->fh);
2279 err_coda_name_init:
2280 ida_free(&dev->ida, ctx->idx);
2281 err_coda_max:
2282 kfree(ctx);
2283 return ret;
2284 }
2285
2286 static int coda_release(struct file *file)
2287 {
2288 struct coda_dev *dev = video_drvdata(file);
2289 struct coda_ctx *ctx = fh_to_ctx(file->private_data);
2290
2291 coda_dbg(1, ctx, "release instance (%p)\n", ctx);
2292
2293 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
2294 coda_bit_stream_end_flag(ctx);
2295
2296 /* If this instance is running, call .job_abort and wait for it to end */
2297 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
2298
2299 if (ctx->vdoa)
2300 vdoa_context_destroy(ctx->vdoa);
2301
2302 /* In case the instance was not running, we still need to call SEQ_END */
2303 if (ctx->ops->seq_end_work) {
2304 queue_work(dev->workqueue, &ctx->seq_end_work);
2305 flush_work(&ctx->seq_end_work);
2306 }
2307
2308 if (ctx->dev->devtype->product == CODA_DX6)
2309 coda_free_aux_buf(dev, &ctx->workbuf);
2310
2311 v4l2_ctrl_handler_free(&ctx->ctrls);
2312 clk_disable_unprepare(dev->clk_ahb);
2313 clk_disable_unprepare(dev->clk_per);
2314 pm_runtime_put_sync(&dev->plat_dev->dev);
2315 v4l2_fh_del(&ctx->fh);
2316 v4l2_fh_exit(&ctx->fh);
2317 ida_free(&dev->ida, ctx->idx);
2318 if (ctx->ops->release)
2319 ctx->ops->release(ctx);
2320 debugfs_remove_recursive(ctx->debugfs_entry);
2321 kfree(ctx);
2322
2323 return 0;
2324 }
2325
2326 static const struct v4l2_file_operations coda_fops = {
2327 .owner = THIS_MODULE,
2328 .open = coda_open,
2329 .release = coda_release,
2330 .poll = v4l2_m2m_fop_poll,
2331 .unlocked_ioctl = video_ioctl2,
2332 .mmap = v4l2_m2m_fop_mmap,
2333 };
2334
2335 static int coda_hw_init(struct coda_dev *dev)
2336 {
2337 u32 data;
2338 u16 *p;
2339 int i, ret;
2340
2341 ret = clk_prepare_enable(dev->clk_per);
2342 if (ret)
2343 goto err_clk_per;
2344
2345 ret = clk_prepare_enable(dev->clk_ahb);
2346 if (ret)
2347 goto err_clk_ahb;
2348
2349 reset_control_reset(dev->rstc);
2350
2351 /*
2352 * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
2353 * The 16-bit chars in the code buffer are in memory access
2354 * order, re-sort them to CODA order for register download.
2355 * Data in this SRAM survives a reboot.
2356 */
2357 p = (u16 *)dev->codebuf.vaddr;
2358 if (dev->devtype->product == CODA_DX6) {
2359 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2360 data = CODA_DOWN_ADDRESS_SET(i) |
2361 CODA_DOWN_DATA_SET(p[i ^ 1]);
2362 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2363 }
2364 } else {
2365 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2366 data = CODA_DOWN_ADDRESS_SET(i) |
2367 CODA_DOWN_DATA_SET(p[round_down(i, 4) +
2368 3 - (i % 4)]);
2369 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2370 }
2371 }
2372
2373 /* Clear registers */
2374 for (i = 0; i < 64; i++)
2375 coda_write(dev, 0, CODA_REG_BIT_CODE_BUF_ADDR + i * 4);
2376
2377 /* Tell the BIT where to find everything it needs */
2378 if (dev->devtype->product == CODA_960 ||
2379 dev->devtype->product == CODA_7541 ||
2380 dev->devtype->product == CODA_HX4) {
2381 coda_write(dev, dev->tempbuf.paddr,
2382 CODA_REG_BIT_TEMP_BUF_ADDR);
2383 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
2384 } else {
2385 coda_write(dev, dev->workbuf.paddr,
2386 CODA_REG_BIT_WORK_BUF_ADDR);
2387 }
2388 coda_write(dev, dev->codebuf.paddr,
2389 CODA_REG_BIT_CODE_BUF_ADDR);
2390 coda_write(dev, 0, CODA_REG_BIT_CODE_RUN);
2391
2392 /* Set default values */
2393 switch (dev->devtype->product) {
2394 case CODA_DX6:
2395 coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH,
2396 CODA_REG_BIT_STREAM_CTRL);
2397 break;
2398 default:
2399 coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH,
2400 CODA_REG_BIT_STREAM_CTRL);
2401 }
2402 if (dev->devtype->product == CODA_960)
2403 coda_write(dev, CODA9_FRAME_ENABLE_BWB,
2404 CODA_REG_BIT_FRAME_MEM_CTRL);
2405 else
2406 coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL);
2407
2408 if (dev->devtype->product != CODA_DX6)
2409 coda_write(dev, 0, CODA7_REG_BIT_AXI_SRAM_USE);
2410
2411 coda_write(dev, CODA_INT_INTERRUPT_ENABLE,
2412 CODA_REG_BIT_INT_ENABLE);
2413
2414 /* Reset VPU and start processor */
2415 data = coda_read(dev, CODA_REG_BIT_CODE_RESET);
2416 data |= CODA_REG_RESET_ENABLE;
2417 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2418 udelay(10);
2419 data &= ~CODA_REG_RESET_ENABLE;
2420 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2421 coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
2422
2423 clk_disable_unprepare(dev->clk_ahb);
2424 clk_disable_unprepare(dev->clk_per);
2425
2426 return 0;
2427
2428 err_clk_ahb:
2429 clk_disable_unprepare(dev->clk_per);
2430 err_clk_per:
2431 return ret;
2432 }
2433
2434 static int coda_register_device(struct coda_dev *dev, int i)
2435 {
2436 struct video_device *vfd = &dev->vfd[i];
2437
2438 if (i >= dev->devtype->num_vdevs)
2439 return -EINVAL;
2440
2441 strscpy(vfd->name, dev->devtype->vdevs[i]->name, sizeof(vfd->name));
2442 vfd->fops = &coda_fops;
2443 vfd->ioctl_ops = &coda_ioctl_ops;
2444 vfd->release = video_device_release_empty,
2445 vfd->lock = &dev->dev_mutex;
2446 vfd->v4l2_dev = &dev->v4l2_dev;
2447 vfd->vfl_dir = VFL_DIR_M2M;
2448 video_set_drvdata(vfd, dev);
2449
2450 /* Not applicable, use the selection API instead */
2451 v4l2_disable_ioctl(vfd, VIDIOC_CROPCAP);
2452 v4l2_disable_ioctl(vfd, VIDIOC_G_CROP);
2453 v4l2_disable_ioctl(vfd, VIDIOC_S_CROP);
2454
2455 return video_register_device(vfd, VFL_TYPE_GRABBER, 0);
2456 }
2457
2458 static void coda_copy_firmware(struct coda_dev *dev, const u8 * const buf,
2459 size_t size)
2460 {
2461 u32 *src = (u32 *)buf;
2462
2463 /* Check if the firmware has a 16-byte Freescale header, skip it */
2464 if (buf[0] == 'M' && buf[1] == 'X')
2465 src += 4;
2466 /*
2467 * Check whether the firmware is in native order or pre-reordered for
2468 * memory access. The first instruction opcode always is 0xe40e.
2469 */
2470 if (__le16_to_cpup((__le16 *)src) == 0xe40e) {
2471 u32 *dst = dev->codebuf.vaddr;
2472 int i;
2473
2474 /* Firmware in native order, reorder while copying */
2475 if (dev->devtype->product == CODA_DX6) {
2476 for (i = 0; i < (size - 16) / 4; i++)
2477 dst[i] = (src[i] << 16) | (src[i] >> 16);
2478 } else {
2479 for (i = 0; i < (size - 16) / 4; i += 2) {
2480 dst[i] = (src[i + 1] << 16) | (src[i + 1] >> 16);
2481 dst[i + 1] = (src[i] << 16) | (src[i] >> 16);
2482 }
2483 }
2484 } else {
2485 /* Copy the already reordered firmware image */
2486 memcpy(dev->codebuf.vaddr, src, size);
2487 }
2488 }
2489
2490 static void coda_fw_callback(const struct firmware *fw, void *context);
2491
2492 static int coda_firmware_request(struct coda_dev *dev)
2493 {
2494 char *fw;
2495
2496 if (dev->firmware >= ARRAY_SIZE(dev->devtype->firmware))
2497 return -EINVAL;
2498
2499 fw = dev->devtype->firmware[dev->firmware];
2500
2501 dev_dbg(&dev->plat_dev->dev, "requesting firmware '%s' for %s\n", fw,
2502 coda_product_name(dev->devtype->product));
2503
2504 return request_firmware_nowait(THIS_MODULE, true, fw,
2505 &dev->plat_dev->dev, GFP_KERNEL, dev,
2506 coda_fw_callback);
2507 }
2508
2509 static void coda_fw_callback(const struct firmware *fw, void *context)
2510 {
2511 struct coda_dev *dev = context;
2512 struct platform_device *pdev = dev->plat_dev;
2513 int i, ret;
2514
2515 if (!fw) {
2516 dev->firmware++;
2517 ret = coda_firmware_request(dev);
2518 if (ret < 0) {
2519 v4l2_err(&dev->v4l2_dev, "firmware request failed\n");
2520 goto put_pm;
2521 }
2522 return;
2523 }
2524 if (dev->firmware > 0) {
2525 /*
2526 * Since we can't suppress warnings for failed asynchronous
2527 * firmware requests, report that the fallback firmware was
2528 * found.
2529 */
2530 dev_info(&pdev->dev, "Using fallback firmware %s\n",
2531 dev->devtype->firmware[dev->firmware]);
2532 }
2533
2534 /* allocate auxiliary per-device code buffer for the BIT processor */
2535 ret = coda_alloc_aux_buf(dev, &dev->codebuf, fw->size, "codebuf",
2536 dev->debugfs_root);
2537 if (ret < 0)
2538 goto put_pm;
2539
2540 coda_copy_firmware(dev, fw->data, fw->size);
2541 release_firmware(fw);
2542
2543 ret = coda_hw_init(dev);
2544 if (ret < 0) {
2545 v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
2546 goto put_pm;
2547 }
2548
2549 ret = coda_check_firmware(dev);
2550 if (ret < 0)
2551 goto put_pm;
2552
2553 dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops);
2554 if (IS_ERR(dev->m2m_dev)) {
2555 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
2556 goto put_pm;
2557 }
2558
2559 for (i = 0; i < dev->devtype->num_vdevs; i++) {
2560 ret = coda_register_device(dev, i);
2561 if (ret) {
2562 v4l2_err(&dev->v4l2_dev,
2563 "Failed to register %s video device: %d\n",
2564 dev->devtype->vdevs[i]->name, ret);
2565 goto rel_vfd;
2566 }
2567 }
2568
2569 v4l2_info(&dev->v4l2_dev, "codec registered as /dev/video[%d-%d]\n",
2570 dev->vfd[0].num, dev->vfd[i - 1].num);
2571
2572 pm_runtime_put_sync(&pdev->dev);
2573 return;
2574
2575 rel_vfd:
2576 while (--i >= 0)
2577 video_unregister_device(&dev->vfd[i]);
2578 v4l2_m2m_release(dev->m2m_dev);
2579 put_pm:
2580 pm_runtime_put_sync(&pdev->dev);
2581 }
2582
2583 enum coda_platform {
2584 CODA_IMX27,
2585 CODA_IMX51,
2586 CODA_IMX53,
2587 CODA_IMX6Q,
2588 CODA_IMX6DL,
2589 };
2590
2591 static const struct coda_devtype coda_devdata[] = {
2592 [CODA_IMX27] = {
2593 .firmware = {
2594 "vpu_fw_imx27_TO2.bin",
2595 "vpu/vpu_fw_imx27_TO2.bin",
2596 "v4l-codadx6-imx27.bin"
2597 },
2598 .product = CODA_DX6,
2599 .codecs = codadx6_codecs,
2600 .num_codecs = ARRAY_SIZE(codadx6_codecs),
2601 .vdevs = codadx6_video_devices,
2602 .num_vdevs = ARRAY_SIZE(codadx6_video_devices),
2603 .workbuf_size = 288 * 1024 + FMO_SLICE_SAVE_BUF_SIZE * 8 * 1024,
2604 .iram_size = 0xb000,
2605 },
2606 [CODA_IMX51] = {
2607 .firmware = {
2608 "vpu_fw_imx51.bin",
2609 "vpu/vpu_fw_imx51.bin",
2610 "v4l-codahx4-imx51.bin"
2611 },
2612 .product = CODA_HX4,
2613 .codecs = codahx4_codecs,
2614 .num_codecs = ARRAY_SIZE(codahx4_codecs),
2615 .vdevs = codahx4_video_devices,
2616 .num_vdevs = ARRAY_SIZE(codahx4_video_devices),
2617 .workbuf_size = 128 * 1024,
2618 .tempbuf_size = 304 * 1024,
2619 .iram_size = 0x14000,
2620 },
2621 [CODA_IMX53] = {
2622 .firmware = {
2623 "vpu_fw_imx53.bin",
2624 "vpu/vpu_fw_imx53.bin",
2625 "v4l-coda7541-imx53.bin"
2626 },
2627 .product = CODA_7541,
2628 .codecs = coda7_codecs,
2629 .num_codecs = ARRAY_SIZE(coda7_codecs),
2630 .vdevs = coda7_video_devices,
2631 .num_vdevs = ARRAY_SIZE(coda7_video_devices),
2632 .workbuf_size = 128 * 1024,
2633 .tempbuf_size = 304 * 1024,
2634 .iram_size = 0x14000,
2635 },
2636 [CODA_IMX6Q] = {
2637 .firmware = {
2638 "vpu_fw_imx6q.bin",
2639 "vpu/vpu_fw_imx6q.bin",
2640 "v4l-coda960-imx6q.bin"
2641 },
2642 .product = CODA_960,
2643 .codecs = coda9_codecs,
2644 .num_codecs = ARRAY_SIZE(coda9_codecs),
2645 .vdevs = coda9_video_devices,
2646 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
2647 .workbuf_size = 80 * 1024,
2648 .tempbuf_size = 204 * 1024,
2649 .iram_size = 0x21000,
2650 },
2651 [CODA_IMX6DL] = {
2652 .firmware = {
2653 "vpu_fw_imx6d.bin",
2654 "vpu/vpu_fw_imx6d.bin",
2655 "v4l-coda960-imx6dl.bin"
2656 },
2657 .product = CODA_960,
2658 .codecs = coda9_codecs,
2659 .num_codecs = ARRAY_SIZE(coda9_codecs),
2660 .vdevs = coda9_video_devices,
2661 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
2662 .workbuf_size = 80 * 1024,
2663 .tempbuf_size = 204 * 1024,
2664 .iram_size = 0x1f000, /* leave 4k for suspend code */
2665 },
2666 };
2667
2668 static const struct platform_device_id coda_platform_ids[] = {
2669 { .name = "coda-imx27", .driver_data = CODA_IMX27 },
2670 { /* sentinel */ }
2671 };
2672 MODULE_DEVICE_TABLE(platform, coda_platform_ids);
2673
2674 #ifdef CONFIG_OF
2675 static const struct of_device_id coda_dt_ids[] = {
2676 { .compatible = "fsl,imx27-vpu", .data = &coda_devdata[CODA_IMX27] },
2677 { .compatible = "fsl,imx51-vpu", .data = &coda_devdata[CODA_IMX51] },
2678 { .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] },
2679 { .compatible = "fsl,imx6q-vpu", .data = &coda_devdata[CODA_IMX6Q] },
2680 { .compatible = "fsl,imx6dl-vpu", .data = &coda_devdata[CODA_IMX6DL] },
2681 { /* sentinel */ }
2682 };
2683 MODULE_DEVICE_TABLE(of, coda_dt_ids);
2684 #endif
2685
2686 static int coda_probe(struct platform_device *pdev)
2687 {
2688 const struct of_device_id *of_id =
2689 of_match_device(of_match_ptr(coda_dt_ids), &pdev->dev);
2690 const struct platform_device_id *pdev_id;
2691 struct coda_platform_data *pdata = pdev->dev.platform_data;
2692 struct device_node *np = pdev->dev.of_node;
2693 struct gen_pool *pool;
2694 struct coda_dev *dev;
2695 struct resource *res;
2696 int ret, irq;
2697
2698 dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
2699 if (!dev)
2700 return -ENOMEM;
2701
2702 pdev_id = of_id ? of_id->data : platform_get_device_id(pdev);
2703
2704 if (of_id)
2705 dev->devtype = of_id->data;
2706 else if (pdev_id)
2707 dev->devtype = &coda_devdata[pdev_id->driver_data];
2708 else
2709 return -EINVAL;
2710
2711 spin_lock_init(&dev->irqlock);
2712
2713 dev->plat_dev = pdev;
2714 dev->clk_per = devm_clk_get(&pdev->dev, "per");
2715 if (IS_ERR(dev->clk_per)) {
2716 dev_err(&pdev->dev, "Could not get per clock\n");
2717 return PTR_ERR(dev->clk_per);
2718 }
2719
2720 dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
2721 if (IS_ERR(dev->clk_ahb)) {
2722 dev_err(&pdev->dev, "Could not get ahb clock\n");
2723 return PTR_ERR(dev->clk_ahb);
2724 }
2725
2726 /* Get memory for physical registers */
2727 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2728 dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
2729 if (IS_ERR(dev->regs_base))
2730 return PTR_ERR(dev->regs_base);
2731
2732 /* IRQ */
2733 irq = platform_get_irq_byname(pdev, "bit");
2734 if (irq < 0)
2735 irq = platform_get_irq(pdev, 0);
2736 if (irq < 0) {
2737 dev_err(&pdev->dev, "failed to get irq resource\n");
2738 return irq;
2739 }
2740
2741 ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, coda_irq_handler,
2742 IRQF_ONESHOT, dev_name(&pdev->dev), dev);
2743 if (ret < 0) {
2744 dev_err(&pdev->dev, "failed to request irq: %d\n", ret);
2745 return ret;
2746 }
2747
2748 dev->rstc = devm_reset_control_get_optional_exclusive(&pdev->dev,
2749 NULL);
2750 if (IS_ERR(dev->rstc)) {
2751 ret = PTR_ERR(dev->rstc);
2752 dev_err(&pdev->dev, "failed get reset control: %d\n", ret);
2753 return ret;
2754 }
2755
2756 /* Get IRAM pool from device tree or platform data */
2757 pool = of_gen_pool_get(np, "iram", 0);
2758 if (!pool && pdata)
2759 pool = gen_pool_get(pdata->iram_dev, NULL);
2760 if (!pool) {
2761 dev_err(&pdev->dev, "iram pool not available\n");
2762 return -ENOMEM;
2763 }
2764 dev->iram_pool = pool;
2765
2766 /* Get vdoa_data if supported by the platform */
2767 dev->vdoa = coda_get_vdoa_data();
2768 if (PTR_ERR(dev->vdoa) == -EPROBE_DEFER)
2769 return -EPROBE_DEFER;
2770
2771 ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
2772 if (ret)
2773 return ret;
2774
2775 mutex_init(&dev->dev_mutex);
2776 mutex_init(&dev->coda_mutex);
2777 ida_init(&dev->ida);
2778
2779 dev->debugfs_root = debugfs_create_dir("coda", NULL);
2780 if (!dev->debugfs_root)
2781 dev_warn(&pdev->dev, "failed to create debugfs root\n");
2782
2783 /* allocate auxiliary per-device buffers for the BIT processor */
2784 if (dev->devtype->product == CODA_DX6) {
2785 ret = coda_alloc_aux_buf(dev, &dev->workbuf,
2786 dev->devtype->workbuf_size, "workbuf",
2787 dev->debugfs_root);
2788 if (ret < 0)
2789 goto err_v4l2_register;
2790 }
2791
2792 if (dev->devtype->tempbuf_size) {
2793 ret = coda_alloc_aux_buf(dev, &dev->tempbuf,
2794 dev->devtype->tempbuf_size, "tempbuf",
2795 dev->debugfs_root);
2796 if (ret < 0)
2797 goto err_v4l2_register;
2798 }
2799
2800 dev->iram.size = dev->devtype->iram_size;
2801 dev->iram.vaddr = gen_pool_dma_alloc(dev->iram_pool, dev->iram.size,
2802 &dev->iram.paddr);
2803 if (!dev->iram.vaddr) {
2804 dev_warn(&pdev->dev, "unable to alloc iram\n");
2805 } else {
2806 memset(dev->iram.vaddr, 0, dev->iram.size);
2807 dev->iram.blob.data = dev->iram.vaddr;
2808 dev->iram.blob.size = dev->iram.size;
2809 dev->iram.dentry = debugfs_create_blob("iram", 0644,
2810 dev->debugfs_root,
2811 &dev->iram.blob);
2812 }
2813
2814 dev->workqueue = alloc_workqueue("coda", WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
2815 if (!dev->workqueue) {
2816 dev_err(&pdev->dev, "unable to alloc workqueue\n");
2817 ret = -ENOMEM;
2818 goto err_v4l2_register;
2819 }
2820
2821 platform_set_drvdata(pdev, dev);
2822
2823 /*
2824 * Start activated so we can directly call coda_hw_init in
2825 * coda_fw_callback regardless of whether CONFIG_PM is
2826 * enabled or whether the device is associated with a PM domain.
2827 */
2828 pm_runtime_get_noresume(&pdev->dev);
2829 pm_runtime_set_active(&pdev->dev);
2830 pm_runtime_enable(&pdev->dev);
2831
2832 ret = coda_firmware_request(dev);
2833 if (ret)
2834 goto err_alloc_workqueue;
2835 return 0;
2836
2837 err_alloc_workqueue:
2838 destroy_workqueue(dev->workqueue);
2839 err_v4l2_register:
2840 v4l2_device_unregister(&dev->v4l2_dev);
2841 return ret;
2842 }
2843
2844 static int coda_remove(struct platform_device *pdev)
2845 {
2846 struct coda_dev *dev = platform_get_drvdata(pdev);
2847 int i;
2848
2849 for (i = 0; i < ARRAY_SIZE(dev->vfd); i++) {
2850 if (video_get_drvdata(&dev->vfd[i]))
2851 video_unregister_device(&dev->vfd[i]);
2852 }
2853 if (dev->m2m_dev)
2854 v4l2_m2m_release(dev->m2m_dev);
2855 pm_runtime_disable(&pdev->dev);
2856 v4l2_device_unregister(&dev->v4l2_dev);
2857 destroy_workqueue(dev->workqueue);
2858 if (dev->iram.vaddr)
2859 gen_pool_free(dev->iram_pool, (unsigned long)dev->iram.vaddr,
2860 dev->iram.size);
2861 coda_free_aux_buf(dev, &dev->codebuf);
2862 coda_free_aux_buf(dev, &dev->tempbuf);
2863 coda_free_aux_buf(dev, &dev->workbuf);
2864 debugfs_remove_recursive(dev->debugfs_root);
2865 ida_destroy(&dev->ida);
2866 return 0;
2867 }
2868
2869 #ifdef CONFIG_PM
2870 static int coda_runtime_resume(struct device *dev)
2871 {
2872 struct coda_dev *cdev = dev_get_drvdata(dev);
2873 int ret = 0;
2874
2875 if (dev->pm_domain && cdev->codebuf.vaddr) {
2876 ret = coda_hw_init(cdev);
2877 if (ret)
2878 v4l2_err(&cdev->v4l2_dev, "HW initialization failed\n");
2879 }
2880
2881 return ret;
2882 }
2883 #endif
2884
2885 static const struct dev_pm_ops coda_pm_ops = {
2886 SET_RUNTIME_PM_OPS(NULL, coda_runtime_resume, NULL)
2887 };
2888
2889 static struct platform_driver coda_driver = {
2890 .probe = coda_probe,
2891 .remove = coda_remove,
2892 .driver = {
2893 .name = CODA_NAME,
2894 .of_match_table = of_match_ptr(coda_dt_ids),
2895 .pm = &coda_pm_ops,
2896 },
2897 .id_table = coda_platform_ids,
2898 };
2899
2900 module_platform_driver(coda_driver);
2901
2902 MODULE_LICENSE("GPL");
2903 MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
2904 MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver");
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