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perf bpf: Move perf_event_output() from stdio.h to bpf.h
[linux/fpc-iii.git] / drivers / media / platform / coda / coda-common.c
blob2848ea5f464d97b746f64a2a43da6651a0e8dea0
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/interrupt.h>
21 #include <linux/io.h>
22 #include <linux/irq.h>
23 #include <linux/kfifo.h>
24 #include <linux/module.h>
25 #include <linux/of_device.h>
26 #include <linux/platform_device.h>
27 #include <linux/pm_runtime.h>
28 #include <linux/slab.h>
29 #include <linux/videodev2.h>
30 #include <linux/of.h>
31 #include <linux/platform_data/media/coda.h>
32 #include <linux/reset.h>
33
34 #include <media/v4l2-ctrls.h>
35 #include <media/v4l2-device.h>
36 #include <media/v4l2-event.h>
37 #include <media/v4l2-ioctl.h>
38 #include <media/v4l2-mem2mem.h>
39 #include <media/videobuf2-v4l2.h>
40 #include <media/videobuf2-dma-contig.h>
41 #include <media/videobuf2-vmalloc.h>
42
43 #include "coda.h"
44 #include "imx-vdoa.h"
45
46 #define CODA_NAME "coda"
47
48 #define CODADX6_MAX_INSTANCES 4
49 #define CODA_MAX_FORMATS 4
50
51 #define CODA_ISRAM_SIZE (2048 * 2)
52
53 #define MIN_W 176
54 #define MIN_H 144
55
56 #define S_ALIGN 1 /* multiple of 2 */
57 #define W_ALIGN 1 /* multiple of 2 */
58 #define H_ALIGN 1 /* multiple of 2 */
59
60 #define fh_to_ctx(__fh) container_of(__fh, struct coda_ctx, fh)
61
62 int coda_debug;
63 module_param(coda_debug, int, 0644);
64 MODULE_PARM_DESC(coda_debug, "Debug level (0-2)");
65
66 static int disable_tiling;
67 module_param(disable_tiling, int, 0644);
68 MODULE_PARM_DESC(disable_tiling, "Disable tiled frame buffers");
69
70 static int disable_vdoa;
71 module_param(disable_vdoa, int, 0644);
72 MODULE_PARM_DESC(disable_vdoa, "Disable Video Data Order Adapter tiled to raster-scan conversion");
73
74 static int enable_bwb = 0;
75 module_param(enable_bwb, int, 0644);
76 MODULE_PARM_DESC(enable_bwb, "Enable BWB unit for decoding, may crash on certain streams");
77
78 void coda_write(struct coda_dev *dev, u32 data, u32 reg)
79 {
80 v4l2_dbg(2, coda_debug, &dev->v4l2_dev,
81 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
82 writel(data, dev->regs_base + reg);
83 }
84
85 unsigned int coda_read(struct coda_dev *dev, u32 reg)
86 {
87 u32 data;
88
89 data = readl(dev->regs_base + reg);
90 v4l2_dbg(2, coda_debug, &dev->v4l2_dev,
91 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
92 return data;
93 }
94
95 void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
96 struct vb2_v4l2_buffer *buf, unsigned int reg_y)
97 {
98 u32 base_y = vb2_dma_contig_plane_dma_addr(&buf->vb2_buf, 0);
99 u32 base_cb, base_cr;
100
101 switch (q_data->fourcc) {
102 case V4L2_PIX_FMT_YUYV:
103 /* Fallthrough: IN -H264-> CODA -NV12 MB-> VDOA -YUYV-> OUT */
104 case V4L2_PIX_FMT_NV12:
105 case V4L2_PIX_FMT_YUV420:
106 default:
107 base_cb = base_y + q_data->bytesperline * q_data->height;
108 base_cr = base_cb + q_data->bytesperline * q_data->height / 4;
109 break;
110 case V4L2_PIX_FMT_YVU420:
111 /* Switch Cb and Cr for YVU420 format */
112 base_cr = base_y + q_data->bytesperline * q_data->height;
113 base_cb = base_cr + q_data->bytesperline * q_data->height / 4;
114 break;
115 case V4L2_PIX_FMT_YUV422P:
116 base_cb = base_y + q_data->bytesperline * q_data->height;
117 base_cr = base_cb + q_data->bytesperline * q_data->height / 2;
118 }
119
120 coda_write(ctx->dev, base_y, reg_y);
121 coda_write(ctx->dev, base_cb, reg_y + 4);
122 coda_write(ctx->dev, base_cr, reg_y + 8);
123 }
124
125 #define CODA_CODEC(mode, src_fourcc, dst_fourcc, max_w, max_h) \
126 { mode, src_fourcc, dst_fourcc, max_w, max_h }
127
128 /*
129 * Arrays of codecs supported by each given version of Coda:
130 * i.MX27 -> codadx6
131 * i.MX51 -> codahx4
132 * i.MX53 -> coda7
133 * i.MX6 -> coda960
134 * Use V4L2_PIX_FMT_YUV420 as placeholder for all supported YUV 4:2:0 variants
135 */
136 static const struct coda_codec codadx6_codecs[] = {
137 CODA_CODEC(CODADX6_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576),
138 CODA_CODEC(CODADX6_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 720, 576),
139 };
140
141 static const struct coda_codec codahx4_codecs[] = {
142 CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576),
143 CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
144 CODA_CODEC(CODA7_MODE_DECODE_MP2, V4L2_PIX_FMT_MPEG2, V4L2_PIX_FMT_YUV420, 1920, 1088),
145 CODA_CODEC(CODA7_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1280, 720),
146 };
147
148 static const struct coda_codec coda7_codecs[] = {
149 CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1280, 720),
150 CODA_CODEC(CODA7_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1280, 720),
151 CODA_CODEC(CODA7_MODE_ENCODE_MJPG, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_JPEG, 8192, 8192),
152 CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
153 CODA_CODEC(CODA7_MODE_DECODE_MP2, V4L2_PIX_FMT_MPEG2, V4L2_PIX_FMT_YUV420, 1920, 1088),
154 CODA_CODEC(CODA7_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
155 CODA_CODEC(CODA7_MODE_DECODE_MJPG, V4L2_PIX_FMT_JPEG, V4L2_PIX_FMT_YUV420, 8192, 8192),
156 };
157
158 static const struct coda_codec coda9_codecs[] = {
159 CODA_CODEC(CODA9_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1920, 1088),
160 CODA_CODEC(CODA9_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1920, 1088),
161 CODA_CODEC(CODA9_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
162 CODA_CODEC(CODA9_MODE_DECODE_MP2, V4L2_PIX_FMT_MPEG2, V4L2_PIX_FMT_YUV420, 1920, 1088),
163 CODA_CODEC(CODA9_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
164 };
165
166 struct coda_video_device {
167 const char *name;
168 enum coda_inst_type type;
169 const struct coda_context_ops *ops;
170 bool direct;
171 u32 src_formats[CODA_MAX_FORMATS];
172 u32 dst_formats[CODA_MAX_FORMATS];
173 };
174
175 static const struct coda_video_device coda_bit_encoder = {
176 .name = "coda-encoder",
177 .type = CODA_INST_ENCODER,
178 .ops = &coda_bit_encode_ops,
179 .src_formats = {
180 V4L2_PIX_FMT_NV12,
181 V4L2_PIX_FMT_YUV420,
182 V4L2_PIX_FMT_YVU420,
183 },
184 .dst_formats = {
185 V4L2_PIX_FMT_H264,
186 V4L2_PIX_FMT_MPEG4,
187 },
188 };
189
190 static const struct coda_video_device coda_bit_jpeg_encoder = {
191 .name = "coda-jpeg-encoder",
192 .type = CODA_INST_ENCODER,
193 .ops = &coda_bit_encode_ops,
194 .src_formats = {
195 V4L2_PIX_FMT_NV12,
196 V4L2_PIX_FMT_YUV420,
197 V4L2_PIX_FMT_YVU420,
198 V4L2_PIX_FMT_YUV422P,
199 },
200 .dst_formats = {
201 V4L2_PIX_FMT_JPEG,
202 },
203 };
204
205 static const struct coda_video_device coda_bit_decoder = {
206 .name = "coda-decoder",
207 .type = CODA_INST_DECODER,
208 .ops = &coda_bit_decode_ops,
209 .src_formats = {
210 V4L2_PIX_FMT_H264,
211 V4L2_PIX_FMT_MPEG2,
212 V4L2_PIX_FMT_MPEG4,
213 },
214 .dst_formats = {
215 V4L2_PIX_FMT_NV12,
216 V4L2_PIX_FMT_YUV420,
217 V4L2_PIX_FMT_YVU420,
218 /*
219 * If V4L2_PIX_FMT_YUYV should be default,
220 * set_default_params() must be adjusted.
221 */
222 V4L2_PIX_FMT_YUYV,
223 },
224 };
225
226 static const struct coda_video_device coda_bit_jpeg_decoder = {
227 .name = "coda-jpeg-decoder",
228 .type = CODA_INST_DECODER,
229 .ops = &coda_bit_decode_ops,
230 .src_formats = {
231 V4L2_PIX_FMT_JPEG,
232 },
233 .dst_formats = {
234 V4L2_PIX_FMT_NV12,
235 V4L2_PIX_FMT_YUV420,
236 V4L2_PIX_FMT_YVU420,
237 V4L2_PIX_FMT_YUV422P,
238 },
239 };
240
241 static const struct coda_video_device *codadx6_video_devices[] = {
242 &coda_bit_encoder,
243 };
244
245 static const struct coda_video_device *codahx4_video_devices[] = {
246 &coda_bit_encoder,
247 &coda_bit_decoder,
248 };
249
250 static const struct coda_video_device *coda7_video_devices[] = {
251 &coda_bit_jpeg_encoder,
252 &coda_bit_jpeg_decoder,
253 &coda_bit_encoder,
254 &coda_bit_decoder,
255 };
256
257 static const struct coda_video_device *coda9_video_devices[] = {
258 &coda_bit_encoder,
259 &coda_bit_decoder,
260 };
261
262 /*
263 * Normalize all supported YUV 4:2:0 formats to the value used in the codec
264 * tables.
265 */
266 static u32 coda_format_normalize_yuv(u32 fourcc)
267 {
268 switch (fourcc) {
269 case V4L2_PIX_FMT_NV12:
270 case V4L2_PIX_FMT_YUV420:
271 case V4L2_PIX_FMT_YVU420:
272 case V4L2_PIX_FMT_YUV422P:
273 case V4L2_PIX_FMT_YUYV:
274 return V4L2_PIX_FMT_YUV420;
275 default:
276 return fourcc;
277 }
278 }
279
280 static const struct coda_codec *coda_find_codec(struct coda_dev *dev,
281 int src_fourcc, int dst_fourcc)
282 {
283 const struct coda_codec *codecs = dev->devtype->codecs;
284 int num_codecs = dev->devtype->num_codecs;
285 int k;
286
287 src_fourcc = coda_format_normalize_yuv(src_fourcc);
288 dst_fourcc = coda_format_normalize_yuv(dst_fourcc);
289 if (src_fourcc == dst_fourcc)
290 return NULL;
291
292 for (k = 0; k < num_codecs; k++) {
293 if (codecs[k].src_fourcc == src_fourcc &&
294 codecs[k].dst_fourcc == dst_fourcc)
295 break;
296 }
297
298 if (k == num_codecs)
299 return NULL;
300
301 return &codecs[k];
302 }
303
304 static void coda_get_max_dimensions(struct coda_dev *dev,
305 const struct coda_codec *codec,
306 int *max_w, int *max_h)
307 {
308 const struct coda_codec *codecs = dev->devtype->codecs;
309 int num_codecs = dev->devtype->num_codecs;
310 unsigned int w, h;
311 int k;
312
313 if (codec) {
314 w = codec->max_w;
315 h = codec->max_h;
316 } else {
317 for (k = 0, w = 0, h = 0; k < num_codecs; k++) {
318 w = max(w, codecs[k].max_w);
319 h = max(h, codecs[k].max_h);
320 }
321 }
322
323 if (max_w)
324 *max_w = w;
325 if (max_h)
326 *max_h = h;
327 }
328
329 static const struct coda_video_device *to_coda_video_device(struct video_device
330 *vdev)
331 {
332 struct coda_dev *dev = video_get_drvdata(vdev);
333 unsigned int i = vdev - dev->vfd;
334
335 if (i >= dev->devtype->num_vdevs)
336 return NULL;
337
338 return dev->devtype->vdevs[i];
339 }
340
341 const char *coda_product_name(int product)
342 {
343 static char buf[9];
344
345 switch (product) {
346 case CODA_DX6:
347 return "CodaDx6";
348 case CODA_HX4:
349 return "CodaHx4";
350 case CODA_7541:
351 return "CODA7541";
352 case CODA_960:
353 return "CODA960";
354 default:
355 snprintf(buf, sizeof(buf), "(0x%04x)", product);
356 return buf;
357 }
358 }
359
360 static struct vdoa_data *coda_get_vdoa_data(void)
361 {
362 struct device_node *vdoa_node;
363 struct platform_device *vdoa_pdev;
364 struct vdoa_data *vdoa_data = NULL;
365
366 vdoa_node = of_find_compatible_node(NULL, NULL, "fsl,imx6q-vdoa");
367 if (!vdoa_node)
368 return NULL;
369
370 vdoa_pdev = of_find_device_by_node(vdoa_node);
371 if (!vdoa_pdev)
372 goto out;
373
374 vdoa_data = platform_get_drvdata(vdoa_pdev);
375 if (!vdoa_data)
376 vdoa_data = ERR_PTR(-EPROBE_DEFER);
377
378 out:
379 of_node_put(vdoa_node);
380
381 return vdoa_data;
382 }
383
384 /*
385 * V4L2 ioctl() operations.
386 */
387 static int coda_querycap(struct file *file, void *priv,
388 struct v4l2_capability *cap)
389 {
390 struct coda_ctx *ctx = fh_to_ctx(priv);
391
392 strscpy(cap->driver, CODA_NAME, sizeof(cap->driver));
393 strscpy(cap->card, coda_product_name(ctx->dev->devtype->product),
394 sizeof(cap->card));
395 strscpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
396 cap->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
397 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
398
399 return 0;
400 }
401
402 static int coda_enum_fmt(struct file *file, void *priv,
403 struct v4l2_fmtdesc *f)
404 {
405 struct video_device *vdev = video_devdata(file);
406 const struct coda_video_device *cvd = to_coda_video_device(vdev);
407 struct coda_ctx *ctx = fh_to_ctx(priv);
408 const u32 *formats;
409
410 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
411 formats = cvd->src_formats;
412 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
413 formats = cvd->dst_formats;
414 else
415 return -EINVAL;
416
417 if (f->index >= CODA_MAX_FORMATS || formats[f->index] == 0)
418 return -EINVAL;
419
420 /* Skip YUYV if the vdoa is not available */
421 if (!ctx->vdoa && f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
422 formats[f->index] == V4L2_PIX_FMT_YUYV)
423 return -EINVAL;
424
425 f->pixelformat = formats[f->index];
426
427 return 0;
428 }
429
430 static int coda_g_fmt(struct file *file, void *priv,
431 struct v4l2_format *f)
432 {
433 struct coda_q_data *q_data;
434 struct coda_ctx *ctx = fh_to_ctx(priv);
435
436 q_data = get_q_data(ctx, f->type);
437 if (!q_data)
438 return -EINVAL;
439
440 f->fmt.pix.field = V4L2_FIELD_NONE;
441 f->fmt.pix.pixelformat = q_data->fourcc;
442 f->fmt.pix.width = q_data->width;
443 f->fmt.pix.height = q_data->height;
444 f->fmt.pix.bytesperline = q_data->bytesperline;
445
446 f->fmt.pix.sizeimage = q_data->sizeimage;
447 f->fmt.pix.colorspace = ctx->colorspace;
448 f->fmt.pix.xfer_func = ctx->xfer_func;
449 f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
450 f->fmt.pix.quantization = ctx->quantization;
451
452 return 0;
453 }
454
455 static int coda_try_pixelformat(struct coda_ctx *ctx, struct v4l2_format *f)
456 {
457 struct coda_q_data *q_data;
458 const u32 *formats;
459 int i;
460
461 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
462 formats = ctx->cvd->src_formats;
463 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
464 formats = ctx->cvd->dst_formats;
465 else
466 return -EINVAL;
467
468 for (i = 0; i < CODA_MAX_FORMATS; i++) {
469 /* Skip YUYV if the vdoa is not available */
470 if (!ctx->vdoa && f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
471 formats[i] == V4L2_PIX_FMT_YUYV)
472 continue;
473
474 if (formats[i] == f->fmt.pix.pixelformat) {
475 f->fmt.pix.pixelformat = formats[i];
476 return 0;
477 }
478 }
479
480 /* Fall back to currently set pixelformat */
481 q_data = get_q_data(ctx, f->type);
482 f->fmt.pix.pixelformat = q_data->fourcc;
483
484 return 0;
485 }
486
487 static int coda_try_fmt_vdoa(struct coda_ctx *ctx, struct v4l2_format *f,
488 bool *use_vdoa)
489 {
490 int err;
491
492 if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
493 return -EINVAL;
494
495 if (!use_vdoa)
496 return -EINVAL;
497
498 if (!ctx->vdoa) {
499 *use_vdoa = false;
500 return 0;
501 }
502
503 err = vdoa_context_configure(NULL, round_up(f->fmt.pix.width, 16),
504 f->fmt.pix.height, f->fmt.pix.pixelformat);
505 if (err) {
506 *use_vdoa = false;
507 return 0;
508 }
509
510 *use_vdoa = true;
511 return 0;
512 }
513
514 static unsigned int coda_estimate_sizeimage(struct coda_ctx *ctx, u32 sizeimage,
515 u32 width, u32 height)
516 {
517 /*
518 * This is a rough estimate for sensible compressed buffer
519 * sizes (between 1 and 16 bits per pixel). This could be
520 * improved by better format specific worst case estimates.
521 */
522 return round_up(clamp(sizeimage, width * height / 8,
523 width * height * 2), PAGE_SIZE);
524 }
525
526 static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
527 struct v4l2_format *f)
528 {
529 struct coda_dev *dev = ctx->dev;
530 unsigned int max_w, max_h;
531 enum v4l2_field field;
532
533 field = f->fmt.pix.field;
534 if (field == V4L2_FIELD_ANY)
535 field = V4L2_FIELD_NONE;
536 else if (V4L2_FIELD_NONE != field)
537 return -EINVAL;
538
539 /* V4L2 specification suggests the driver corrects the format struct
540 * if any of the dimensions is unsupported */
541 f->fmt.pix.field = field;
542
543 coda_get_max_dimensions(dev, codec, &max_w, &max_h);
544 v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w, W_ALIGN,
545 &f->fmt.pix.height, MIN_H, max_h, H_ALIGN,
546 S_ALIGN);
547
548 switch (f->fmt.pix.pixelformat) {
549 case V4L2_PIX_FMT_NV12:
550 case V4L2_PIX_FMT_YUV420:
551 case V4L2_PIX_FMT_YVU420:
552 /*
553 * Frame stride must be at least multiple of 8,
554 * but multiple of 16 for h.264 or JPEG 4:2:x
555 */
556 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
557 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
558 f->fmt.pix.height * 3 / 2;
559 break;
560 case V4L2_PIX_FMT_YUYV:
561 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16) * 2;
562 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
563 f->fmt.pix.height;
564 break;
565 case V4L2_PIX_FMT_YUV422P:
566 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
567 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
568 f->fmt.pix.height * 2;
569 break;
570 case V4L2_PIX_FMT_JPEG:
571 case V4L2_PIX_FMT_H264:
572 case V4L2_PIX_FMT_MPEG4:
573 case V4L2_PIX_FMT_MPEG2:
574 f->fmt.pix.bytesperline = 0;
575 f->fmt.pix.sizeimage = coda_estimate_sizeimage(ctx,
576 f->fmt.pix.sizeimage,
577 f->fmt.pix.width,
578 f->fmt.pix.height);
579 break;
580 default:
581 BUG();
582 }
583
584 return 0;
585 }
586
587 static int coda_try_fmt_vid_cap(struct file *file, void *priv,
588 struct v4l2_format *f)
589 {
590 struct coda_ctx *ctx = fh_to_ctx(priv);
591 const struct coda_q_data *q_data_src;
592 const struct coda_codec *codec;
593 struct vb2_queue *src_vq;
594 int ret;
595 bool use_vdoa;
596
597 ret = coda_try_pixelformat(ctx, f);
598 if (ret < 0)
599 return ret;
600
601 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
602
603 /*
604 * If the source format is already fixed, only allow the same output
605 * resolution
606 */
607 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
608 if (vb2_is_streaming(src_vq)) {
609 f->fmt.pix.width = q_data_src->width;
610 f->fmt.pix.height = q_data_src->height;
611 }
612
613 f->fmt.pix.colorspace = ctx->colorspace;
614 f->fmt.pix.xfer_func = ctx->xfer_func;
615 f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
616 f->fmt.pix.quantization = ctx->quantization;
617
618 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
619 codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
620 f->fmt.pix.pixelformat);
621 if (!codec)
622 return -EINVAL;
623
624 ret = coda_try_fmt(ctx, codec, f);
625 if (ret < 0)
626 return ret;
627
628 /* The h.264 decoder only returns complete 16x16 macroblocks */
629 if (codec && codec->src_fourcc == V4L2_PIX_FMT_H264) {
630 f->fmt.pix.height = round_up(f->fmt.pix.height, 16);
631 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
632 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
633 f->fmt.pix.height * 3 / 2;
634
635 ret = coda_try_fmt_vdoa(ctx, f, &use_vdoa);
636 if (ret < 0)
637 return ret;
638
639 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) {
640 if (!use_vdoa)
641 return -EINVAL;
642
643 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16) * 2;
644 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
645 f->fmt.pix.height;
646 }
647 }
648
649 return 0;
650 }
651
652 static void coda_set_default_colorspace(struct v4l2_pix_format *fmt)
653 {
654 enum v4l2_colorspace colorspace;
655
656 if (fmt->pixelformat == V4L2_PIX_FMT_JPEG)
657 colorspace = V4L2_COLORSPACE_JPEG;
658 else if (fmt->width <= 720 && fmt->height <= 576)
659 colorspace = V4L2_COLORSPACE_SMPTE170M;
660 else
661 colorspace = V4L2_COLORSPACE_REC709;
662
663 fmt->colorspace = colorspace;
664 fmt->xfer_func = V4L2_XFER_FUNC_DEFAULT;
665 fmt->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
666 fmt->quantization = V4L2_QUANTIZATION_DEFAULT;
667 }
668
669 static int coda_try_fmt_vid_out(struct file *file, void *priv,
670 struct v4l2_format *f)
671 {
672 struct coda_ctx *ctx = fh_to_ctx(priv);
673 struct coda_dev *dev = ctx->dev;
674 const struct coda_q_data *q_data_dst;
675 const struct coda_codec *codec;
676 int ret;
677
678 ret = coda_try_pixelformat(ctx, f);
679 if (ret < 0)
680 return ret;
681
682 if (f->fmt.pix.colorspace == V4L2_COLORSPACE_DEFAULT)
683 coda_set_default_colorspace(&f->fmt.pix);
684
685 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
686 codec = coda_find_codec(dev, f->fmt.pix.pixelformat, q_data_dst->fourcc);
687
688 return coda_try_fmt(ctx, codec, f);
689 }
690
691 static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f,
692 struct v4l2_rect *r)
693 {
694 struct coda_q_data *q_data;
695 struct vb2_queue *vq;
696
697 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
698 if (!vq)
699 return -EINVAL;
700
701 q_data = get_q_data(ctx, f->type);
702 if (!q_data)
703 return -EINVAL;
704
705 if (vb2_is_busy(vq)) {
706 v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__);
707 return -EBUSY;
708 }
709
710 q_data->fourcc = f->fmt.pix.pixelformat;
711 q_data->width = f->fmt.pix.width;
712 q_data->height = f->fmt.pix.height;
713 q_data->bytesperline = f->fmt.pix.bytesperline;
714 q_data->sizeimage = f->fmt.pix.sizeimage;
715 if (r) {
716 q_data->rect = *r;
717 } else {
718 q_data->rect.left = 0;
719 q_data->rect.top = 0;
720 q_data->rect.width = f->fmt.pix.width;
721 q_data->rect.height = f->fmt.pix.height;
722 }
723
724 switch (f->fmt.pix.pixelformat) {
725 case V4L2_PIX_FMT_YUYV:
726 ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP;
727 break;
728 case V4L2_PIX_FMT_NV12:
729 if (!disable_tiling) {
730 ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP;
731 break;
732 }
733 /* else fall through */
734 case V4L2_PIX_FMT_YUV420:
735 case V4L2_PIX_FMT_YVU420:
736 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP;
737 break;
738 default:
739 break;
740 }
741
742 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP &&
743 !coda_try_fmt_vdoa(ctx, f, &ctx->use_vdoa) &&
744 ctx->use_vdoa)
745 vdoa_context_configure(ctx->vdoa,
746 round_up(f->fmt.pix.width, 16),
747 f->fmt.pix.height,
748 f->fmt.pix.pixelformat);
749 else
750 ctx->use_vdoa = false;
751
752 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
753 "Setting format for type %d, wxh: %dx%d, fmt: %4.4s %c\n",
754 f->type, q_data->width, q_data->height,
755 (char *)&q_data->fourcc,
756 (ctx->tiled_map_type == GDI_LINEAR_FRAME_MAP) ? 'L' : 'T');
757
758 return 0;
759 }
760
761 static int coda_s_fmt_vid_cap(struct file *file, void *priv,
762 struct v4l2_format *f)
763 {
764 struct coda_ctx *ctx = fh_to_ctx(priv);
765 struct coda_q_data *q_data_src;
766 struct v4l2_rect r;
767 int ret;
768
769 ret = coda_try_fmt_vid_cap(file, priv, f);
770 if (ret)
771 return ret;
772
773 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
774 r.left = 0;
775 r.top = 0;
776 r.width = q_data_src->width;
777 r.height = q_data_src->height;
778
779 ret = coda_s_fmt(ctx, f, &r);
780 if (ret)
781 return ret;
782
783 if (ctx->inst_type != CODA_INST_ENCODER)
784 return 0;
785
786 ctx->colorspace = f->fmt.pix.colorspace;
787 ctx->xfer_func = f->fmt.pix.xfer_func;
788 ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
789 ctx->quantization = f->fmt.pix.quantization;
790
791 return 0;
792 }
793
794 static int coda_s_fmt_vid_out(struct file *file, void *priv,
795 struct v4l2_format *f)
796 {
797 struct coda_ctx *ctx = fh_to_ctx(priv);
798 struct v4l2_format f_cap;
799 struct vb2_queue *dst_vq;
800 int ret;
801
802 ret = coda_try_fmt_vid_out(file, priv, f);
803 if (ret)
804 return ret;
805
806 ret = coda_s_fmt(ctx, f, NULL);
807 if (ret)
808 return ret;
809
810 if (ctx->inst_type != CODA_INST_DECODER)
811 return 0;
812
813 ctx->colorspace = f->fmt.pix.colorspace;
814 ctx->xfer_func = f->fmt.pix.xfer_func;
815 ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
816 ctx->quantization = f->fmt.pix.quantization;
817
818 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
819 if (!dst_vq)
820 return -EINVAL;
821
822 /*
823 * Setting the capture queue format is not possible while the capture
824 * queue is still busy. This is not an error, but the user will have to
825 * make sure themselves that the capture format is set correctly before
826 * starting the output queue again.
827 */
828 if (vb2_is_busy(dst_vq))
829 return 0;
830
831 memset(&f_cap, 0, sizeof(f_cap));
832 f_cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
833 coda_g_fmt(file, priv, &f_cap);
834 f_cap.fmt.pix.width = f->fmt.pix.width;
835 f_cap.fmt.pix.height = f->fmt.pix.height;
836
837 return coda_s_fmt_vid_cap(file, priv, &f_cap);
838 }
839
840 static int coda_reqbufs(struct file *file, void *priv,
841 struct v4l2_requestbuffers *rb)
842 {
843 struct coda_ctx *ctx = fh_to_ctx(priv);
844 int ret;
845
846 ret = v4l2_m2m_reqbufs(file, ctx->fh.m2m_ctx, rb);
847 if (ret)
848 return ret;
849
850 /*
851 * Allow to allocate instance specific per-context buffers, such as
852 * bitstream ringbuffer, slice buffer, work buffer, etc. if needed.
853 */
854 if (rb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && ctx->ops->reqbufs)
855 return ctx->ops->reqbufs(ctx, rb);
856
857 return 0;
858 }
859
860 static int coda_qbuf(struct file *file, void *priv,
861 struct v4l2_buffer *buf)
862 {
863 struct coda_ctx *ctx = fh_to_ctx(priv);
864
865 return v4l2_m2m_qbuf(file, ctx->fh.m2m_ctx, buf);
866 }
867
868 static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx,
869 struct vb2_v4l2_buffer *buf)
870 {
871 return ((ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) &&
872 (buf->sequence == (ctx->qsequence - 1)));
873 }
874
875 void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
876 enum vb2_buffer_state state)
877 {
878 const struct v4l2_event eos_event = {
879 .type = V4L2_EVENT_EOS
880 };
881
882 if (coda_buf_is_end_of_stream(ctx, buf)) {
883 buf->flags |= V4L2_BUF_FLAG_LAST;
884
885 v4l2_event_queue_fh(&ctx->fh, &eos_event);
886 }
887
888 v4l2_m2m_buf_done(buf, state);
889 }
890
891 static int coda_g_selection(struct file *file, void *fh,
892 struct v4l2_selection *s)
893 {
894 struct coda_ctx *ctx = fh_to_ctx(fh);
895 struct coda_q_data *q_data;
896 struct v4l2_rect r, *rsel;
897
898 q_data = get_q_data(ctx, s->type);
899 if (!q_data)
900 return -EINVAL;
901
902 r.left = 0;
903 r.top = 0;
904 r.width = q_data->width;
905 r.height = q_data->height;
906 rsel = &q_data->rect;
907
908 switch (s->target) {
909 case V4L2_SEL_TGT_CROP_DEFAULT:
910 case V4L2_SEL_TGT_CROP_BOUNDS:
911 rsel = &r;
912 /* fallthrough */
913 case V4L2_SEL_TGT_CROP:
914 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
915 return -EINVAL;
916 break;
917 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
918 case V4L2_SEL_TGT_COMPOSE_PADDED:
919 rsel = &r;
920 /* fallthrough */
921 case V4L2_SEL_TGT_COMPOSE:
922 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
923 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
924 return -EINVAL;
925 break;
926 default:
927 return -EINVAL;
928 }
929
930 s->r = *rsel;
931
932 return 0;
933 }
934
935 static int coda_s_selection(struct file *file, void *fh,
936 struct v4l2_selection *s)
937 {
938 struct coda_ctx *ctx = fh_to_ctx(fh);
939 struct coda_q_data *q_data;
940
941 if (ctx->inst_type == CODA_INST_ENCODER &&
942 s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
943 s->target == V4L2_SEL_TGT_CROP) {
944 q_data = get_q_data(ctx, s->type);
945 if (!q_data)
946 return -EINVAL;
947
948 s->r.left = 0;
949 s->r.top = 0;
950 s->r.width = clamp(s->r.width, 2U, q_data->width);
951 s->r.height = clamp(s->r.height, 2U, q_data->height);
952
953 if (s->flags & V4L2_SEL_FLAG_LE) {
954 s->r.width = round_up(s->r.width, 2);
955 s->r.height = round_up(s->r.height, 2);
956 } else {
957 s->r.width = round_down(s->r.width, 2);
958 s->r.height = round_down(s->r.height, 2);
959 }
960
961 q_data->rect = s->r;
962
963 return 0;
964 }
965
966 return coda_g_selection(file, fh, s);
967 }
968
969 static int coda_try_encoder_cmd(struct file *file, void *fh,
970 struct v4l2_encoder_cmd *ec)
971 {
972 if (ec->cmd != V4L2_ENC_CMD_STOP)
973 return -EINVAL;
974
975 if (ec->flags & V4L2_ENC_CMD_STOP_AT_GOP_END)
976 return -EINVAL;
977
978 return 0;
979 }
980
981 static int coda_encoder_cmd(struct file *file, void *fh,
982 struct v4l2_encoder_cmd *ec)
983 {
984 struct coda_ctx *ctx = fh_to_ctx(fh);
985 struct vb2_queue *dst_vq;
986 int ret;
987
988 ret = coda_try_encoder_cmd(file, fh, ec);
989 if (ret < 0)
990 return ret;
991
992 /* Ignore encoder stop command silently in decoder context */
993 if (ctx->inst_type != CODA_INST_ENCODER)
994 return 0;
995
996 /* Set the stream-end flag on this context */
997 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
998
999 /* If there is no buffer in flight, wake up */
1000 if (!ctx->streamon_out || ctx->qsequence == ctx->osequence) {
1001 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
1002 V4L2_BUF_TYPE_VIDEO_CAPTURE);
1003 dst_vq->last_buffer_dequeued = true;
1004 wake_up(&dst_vq->done_wq);
1005 }
1006
1007 return 0;
1008 }
1009
1010 static int coda_try_decoder_cmd(struct file *file, void *fh,
1011 struct v4l2_decoder_cmd *dc)
1012 {
1013 if (dc->cmd != V4L2_DEC_CMD_STOP)
1014 return -EINVAL;
1015
1016 if (dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK)
1017 return -EINVAL;
1018
1019 if (!(dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY) && (dc->stop.pts != 0))
1020 return -EINVAL;
1021
1022 return 0;
1023 }
1024
1025 static int coda_decoder_cmd(struct file *file, void *fh,
1026 struct v4l2_decoder_cmd *dc)
1027 {
1028 struct coda_ctx *ctx = fh_to_ctx(fh);
1029 int ret;
1030
1031 ret = coda_try_decoder_cmd(file, fh, dc);
1032 if (ret < 0)
1033 return ret;
1034
1035 /* Ignore decoder stop command silently in encoder context */
1036 if (ctx->inst_type != CODA_INST_DECODER)
1037 return 0;
1038
1039 /* Set the stream-end flag on this context */
1040 coda_bit_stream_end_flag(ctx);
1041 ctx->hold = false;
1042 v4l2_m2m_try_schedule(ctx->fh.m2m_ctx);
1043
1044 return 0;
1045 }
1046
1047 static int coda_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1048 {
1049 struct coda_ctx *ctx = fh_to_ctx(fh);
1050 struct v4l2_fract *tpf;
1051
1052 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1053 return -EINVAL;
1054
1055 a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
1056 tpf = &a->parm.output.timeperframe;
1057 tpf->denominator = ctx->params.framerate & CODA_FRATE_RES_MASK;
1058 tpf->numerator = 1 + (ctx->params.framerate >>
1059 CODA_FRATE_DIV_OFFSET);
1060
1061 return 0;
1062 }
1063
1064 /*
1065 * Approximate timeperframe v4l2_fract with values that can be written
1066 * into the 16-bit CODA_FRATE_DIV and CODA_FRATE_RES fields.
1067 */
1068 static void coda_approximate_timeperframe(struct v4l2_fract *timeperframe)
1069 {
1070 struct v4l2_fract s = *timeperframe;
1071 struct v4l2_fract f0;
1072 struct v4l2_fract f1 = { 1, 0 };
1073 struct v4l2_fract f2 = { 0, 1 };
1074 unsigned int i, div, s_denominator;
1075
1076 /* Lower bound is 1/65535 */
1077 if (s.numerator == 0 || s.denominator / s.numerator > 65535) {
1078 timeperframe->numerator = 1;
1079 timeperframe->denominator = 65535;
1080 return;
1081 }
1082
1083 /* Upper bound is 65536/1, map everything above to infinity */
1084 if (s.denominator == 0 || s.numerator / s.denominator > 65536) {
1085 timeperframe->numerator = 1;
1086 timeperframe->denominator = 0;
1087 return;
1088 }
1089
1090 /* Reduce fraction to lowest terms */
1091 div = gcd(s.numerator, s.denominator);
1092 if (div > 1) {
1093 s.numerator /= div;
1094 s.denominator /= div;
1095 }
1096
1097 if (s.numerator <= 65536 && s.denominator < 65536) {
1098 *timeperframe = s;
1099 return;
1100 }
1101
1102 /* Find successive convergents from continued fraction expansion */
1103 while (f2.numerator <= 65536 && f2.denominator < 65536) {
1104 f0 = f1;
1105 f1 = f2;
1106
1107 /* Stop when f2 exactly equals timeperframe */
1108 if (s.numerator == 0)
1109 break;
1110
1111 i = s.denominator / s.numerator;
1112
1113 f2.numerator = f0.numerator + i * f1.numerator;
1114 f2.denominator = f0.denominator + i * f2.denominator;
1115
1116 s_denominator = s.numerator;
1117 s.numerator = s.denominator % s.numerator;
1118 s.denominator = s_denominator;
1119 }
1120
1121 *timeperframe = f1;
1122 }
1123
1124 static uint32_t coda_timeperframe_to_frate(struct v4l2_fract *timeperframe)
1125 {
1126 return ((timeperframe->numerator - 1) << CODA_FRATE_DIV_OFFSET) |
1127 timeperframe->denominator;
1128 }
1129
1130 static int coda_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1131 {
1132 struct coda_ctx *ctx = fh_to_ctx(fh);
1133 struct v4l2_fract *tpf;
1134
1135 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1136 return -EINVAL;
1137
1138 tpf = &a->parm.output.timeperframe;
1139 coda_approximate_timeperframe(tpf);
1140 ctx->params.framerate = coda_timeperframe_to_frate(tpf);
1141
1142 return 0;
1143 }
1144
1145 static int coda_subscribe_event(struct v4l2_fh *fh,
1146 const struct v4l2_event_subscription *sub)
1147 {
1148 switch (sub->type) {
1149 case V4L2_EVENT_EOS:
1150 return v4l2_event_subscribe(fh, sub, 0, NULL);
1151 default:
1152 return v4l2_ctrl_subscribe_event(fh, sub);
1153 }
1154 }
1155
1156 static const struct v4l2_ioctl_ops coda_ioctl_ops = {
1157 .vidioc_querycap = coda_querycap,
1158
1159 .vidioc_enum_fmt_vid_cap = coda_enum_fmt,
1160 .vidioc_g_fmt_vid_cap = coda_g_fmt,
1161 .vidioc_try_fmt_vid_cap = coda_try_fmt_vid_cap,
1162 .vidioc_s_fmt_vid_cap = coda_s_fmt_vid_cap,
1163
1164 .vidioc_enum_fmt_vid_out = coda_enum_fmt,
1165 .vidioc_g_fmt_vid_out = coda_g_fmt,
1166 .vidioc_try_fmt_vid_out = coda_try_fmt_vid_out,
1167 .vidioc_s_fmt_vid_out = coda_s_fmt_vid_out,
1168
1169 .vidioc_reqbufs = coda_reqbufs,
1170 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
1171
1172 .vidioc_qbuf = coda_qbuf,
1173 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
1174 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
1175 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
1176 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
1177
1178 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
1179 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
1180
1181 .vidioc_g_selection = coda_g_selection,
1182 .vidioc_s_selection = coda_s_selection,
1183
1184 .vidioc_try_encoder_cmd = coda_try_encoder_cmd,
1185 .vidioc_encoder_cmd = coda_encoder_cmd,
1186 .vidioc_try_decoder_cmd = coda_try_decoder_cmd,
1187 .vidioc_decoder_cmd = coda_decoder_cmd,
1188
1189 .vidioc_g_parm = coda_g_parm,
1190 .vidioc_s_parm = coda_s_parm,
1191
1192 .vidioc_subscribe_event = coda_subscribe_event,
1193 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1194 };
1195
1196 /*
1197 * Mem-to-mem operations.
1198 */
1199
1200 static void coda_device_run(void *m2m_priv)
1201 {
1202 struct coda_ctx *ctx = m2m_priv;
1203 struct coda_dev *dev = ctx->dev;
1204
1205 queue_work(dev->workqueue, &ctx->pic_run_work);
1206 }
1207
1208 static void coda_pic_run_work(struct work_struct *work)
1209 {
1210 struct coda_ctx *ctx = container_of(work, struct coda_ctx, pic_run_work);
1211 struct coda_dev *dev = ctx->dev;
1212 int ret;
1213
1214 mutex_lock(&ctx->buffer_mutex);
1215 mutex_lock(&dev->coda_mutex);
1216
1217 ret = ctx->ops->prepare_run(ctx);
1218 if (ret < 0 && ctx->inst_type == CODA_INST_DECODER) {
1219 mutex_unlock(&dev->coda_mutex);
1220 mutex_unlock(&ctx->buffer_mutex);
1221 /* job_finish scheduled by prepare_decode */
1222 return;
1223 }
1224
1225 if (!wait_for_completion_timeout(&ctx->completion,
1226 msecs_to_jiffies(1000))) {
1227 dev_err(&dev->plat_dev->dev, "CODA PIC_RUN timeout\n");
1228
1229 ctx->hold = true;
1230
1231 coda_hw_reset(ctx);
1232
1233 if (ctx->ops->run_timeout)
1234 ctx->ops->run_timeout(ctx);
1235 } else if (!ctx->aborting) {
1236 ctx->ops->finish_run(ctx);
1237 }
1238
1239 if ((ctx->aborting || (!ctx->streamon_cap && !ctx->streamon_out)) &&
1240 ctx->ops->seq_end_work)
1241 queue_work(dev->workqueue, &ctx->seq_end_work);
1242
1243 mutex_unlock(&dev->coda_mutex);
1244 mutex_unlock(&ctx->buffer_mutex);
1245
1246 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
1247 }
1248
1249 static int coda_job_ready(void *m2m_priv)
1250 {
1251 struct coda_ctx *ctx = m2m_priv;
1252 int src_bufs = v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx);
1253
1254 /*
1255 * For both 'P' and 'key' frame cases 1 picture
1256 * and 1 frame are needed. In the decoder case,
1257 * the compressed frame can be in the bitstream.
1258 */
1259 if (!src_bufs && ctx->inst_type != CODA_INST_DECODER) {
1260 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1261 "not ready: not enough video buffers.\n");
1262 return 0;
1263 }
1264
1265 if (!v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx)) {
1266 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1267 "not ready: not enough video capture buffers.\n");
1268 return 0;
1269 }
1270
1271 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1272 bool stream_end = ctx->bit_stream_param &
1273 CODA_BIT_STREAM_END_FLAG;
1274 int num_metas = ctx->num_metas;
1275 unsigned int count;
1276
1277 count = hweight32(ctx->frm_dis_flg);
1278 if (ctx->use_vdoa && count >= (ctx->num_internal_frames - 1)) {
1279 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1280 "%d: not ready: all internal buffers in use: %d/%d (0x%x)",
1281 ctx->idx, count, ctx->num_internal_frames,
1282 ctx->frm_dis_flg);
1283 return 0;
1284 }
1285
1286 if (ctx->hold && !src_bufs) {
1287 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1288 "%d: not ready: on hold for more buffers.\n",
1289 ctx->idx);
1290 return 0;
1291 }
1292
1293 if (!stream_end && (num_metas + src_bufs) < 2) {
1294 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1295 "%d: not ready: need 2 buffers available (%d, %d)\n",
1296 ctx->idx, num_metas, src_bufs);
1297 return 0;
1298 }
1299
1300
1301 if (!src_bufs && !stream_end &&
1302 (coda_get_bitstream_payload(ctx) < 512)) {
1303 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1304 "%d: not ready: not enough bitstream data (%d).\n",
1305 ctx->idx, coda_get_bitstream_payload(ctx));
1306 return 0;
1307 }
1308 }
1309
1310 if (ctx->aborting) {
1311 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1312 "not ready: aborting\n");
1313 return 0;
1314 }
1315
1316 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1317 "job ready\n");
1318
1319 return 1;
1320 }
1321
1322 static void coda_job_abort(void *priv)
1323 {
1324 struct coda_ctx *ctx = priv;
1325
1326 ctx->aborting = 1;
1327
1328 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1329 "Aborting task\n");
1330 }
1331
1332 static const struct v4l2_m2m_ops coda_m2m_ops = {
1333 .device_run = coda_device_run,
1334 .job_ready = coda_job_ready,
1335 .job_abort = coda_job_abort,
1336 };
1337
1338 static void set_default_params(struct coda_ctx *ctx)
1339 {
1340 unsigned int max_w, max_h, usize, csize;
1341
1342 ctx->codec = coda_find_codec(ctx->dev, ctx->cvd->src_formats[0],
1343 ctx->cvd->dst_formats[0]);
1344 max_w = min(ctx->codec->max_w, 1920U);
1345 max_h = min(ctx->codec->max_h, 1088U);
1346 usize = max_w * max_h * 3 / 2;
1347 csize = coda_estimate_sizeimage(ctx, usize, max_w, max_h);
1348
1349 ctx->params.codec_mode = ctx->codec->mode;
1350 if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_JPEG)
1351 ctx->colorspace = V4L2_COLORSPACE_JPEG;
1352 else
1353 ctx->colorspace = V4L2_COLORSPACE_REC709;
1354 ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
1355 ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
1356 ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
1357 ctx->params.framerate = 30;
1358
1359 /* Default formats for output and input queues */
1360 ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->cvd->src_formats[0];
1361 ctx->q_data[V4L2_M2M_DST].fourcc = ctx->cvd->dst_formats[0];
1362 ctx->q_data[V4L2_M2M_SRC].width = max_w;
1363 ctx->q_data[V4L2_M2M_SRC].height = max_h;
1364 ctx->q_data[V4L2_M2M_DST].width = max_w;
1365 ctx->q_data[V4L2_M2M_DST].height = max_h;
1366 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_YUV420) {
1367 ctx->q_data[V4L2_M2M_SRC].bytesperline = max_w;
1368 ctx->q_data[V4L2_M2M_SRC].sizeimage = usize;
1369 ctx->q_data[V4L2_M2M_DST].bytesperline = 0;
1370 ctx->q_data[V4L2_M2M_DST].sizeimage = csize;
1371 } else {
1372 ctx->q_data[V4L2_M2M_SRC].bytesperline = 0;
1373 ctx->q_data[V4L2_M2M_SRC].sizeimage = csize;
1374 ctx->q_data[V4L2_M2M_DST].bytesperline = max_w;
1375 ctx->q_data[V4L2_M2M_DST].sizeimage = usize;
1376 }
1377 ctx->q_data[V4L2_M2M_SRC].rect.width = max_w;
1378 ctx->q_data[V4L2_M2M_SRC].rect.height = max_h;
1379 ctx->q_data[V4L2_M2M_DST].rect.width = max_w;
1380 ctx->q_data[V4L2_M2M_DST].rect.height = max_h;
1381
1382 /*
1383 * Since the RBC2AXI logic only supports a single chroma plane,
1384 * macroblock tiling only works for to NV12 pixel format.
1385 */
1386 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP;
1387 }
1388
1389 /*
1390 * Queue operations
1391 */
1392 static int coda_queue_setup(struct vb2_queue *vq,
1393 unsigned int *nbuffers, unsigned int *nplanes,
1394 unsigned int sizes[], struct device *alloc_devs[])
1395 {
1396 struct coda_ctx *ctx = vb2_get_drv_priv(vq);
1397 struct coda_q_data *q_data;
1398 unsigned int size;
1399
1400 q_data = get_q_data(ctx, vq->type);
1401 size = q_data->sizeimage;
1402
1403 *nplanes = 1;
1404 sizes[0] = size;
1405
1406 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1407 "get %d buffer(s) of size %d each.\n", *nbuffers, size);
1408
1409 return 0;
1410 }
1411
1412 static int coda_buf_prepare(struct vb2_buffer *vb)
1413 {
1414 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1415 struct coda_q_data *q_data;
1416
1417 q_data = get_q_data(ctx, vb->vb2_queue->type);
1418
1419 if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
1420 v4l2_warn(&ctx->dev->v4l2_dev,
1421 "%s data will not fit into plane (%lu < %lu)\n",
1422 __func__, vb2_plane_size(vb, 0),
1423 (long)q_data->sizeimage);
1424 return -EINVAL;
1425 }
1426
1427 return 0;
1428 }
1429
1430 static void coda_update_menu_ctrl(struct v4l2_ctrl *ctrl, int value)
1431 {
1432 if (!ctrl)
1433 return;
1434
1435 v4l2_ctrl_lock(ctrl);
1436
1437 /*
1438 * Extend the control range if the parsed stream contains a known but
1439 * unsupported value or level.
1440 */
1441 if (value > ctrl->maximum) {
1442 __v4l2_ctrl_modify_range(ctrl, ctrl->minimum, value,
1443 ctrl->menu_skip_mask & ~(1 << value),
1444 ctrl->default_value);
1445 } else if (value < ctrl->minimum) {
1446 __v4l2_ctrl_modify_range(ctrl, value, ctrl->maximum,
1447 ctrl->menu_skip_mask & ~(1 << value),
1448 ctrl->default_value);
1449 }
1450
1451 __v4l2_ctrl_s_ctrl(ctrl, value);
1452
1453 v4l2_ctrl_unlock(ctrl);
1454 }
1455
1456 static void coda_update_h264_profile_ctrl(struct coda_ctx *ctx)
1457 {
1458 const char * const *profile_names;
1459 int profile;
1460
1461 profile = coda_h264_profile(ctx->params.h264_profile_idc);
1462 if (profile < 0) {
1463 v4l2_warn(&ctx->dev->v4l2_dev, "Invalid H264 Profile: %u\n",
1464 ctx->params.h264_profile_idc);
1465 return;
1466 }
1467
1468 coda_update_menu_ctrl(ctx->h264_profile_ctrl, profile);
1469
1470 profile_names = v4l2_ctrl_get_menu(V4L2_CID_MPEG_VIDEO_H264_PROFILE);
1471
1472 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, "Parsed H264 Profile: %s\n",
1473 profile_names[profile]);
1474 }
1475
1476 static void coda_update_h264_level_ctrl(struct coda_ctx *ctx)
1477 {
1478 const char * const *level_names;
1479 int level;
1480
1481 level = coda_h264_level(ctx->params.h264_level_idc);
1482 if (level < 0) {
1483 v4l2_warn(&ctx->dev->v4l2_dev, "Invalid H264 Level: %u\n",
1484 ctx->params.h264_level_idc);
1485 return;
1486 }
1487
1488 coda_update_menu_ctrl(ctx->h264_level_ctrl, level);
1489
1490 level_names = v4l2_ctrl_get_menu(V4L2_CID_MPEG_VIDEO_H264_LEVEL);
1491
1492 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, "Parsed H264 Level: %s\n",
1493 level_names[level]);
1494 }
1495
1496 static void coda_buf_queue(struct vb2_buffer *vb)
1497 {
1498 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1499 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1500 struct vb2_queue *vq = vb->vb2_queue;
1501 struct coda_q_data *q_data;
1502
1503 q_data = get_q_data(ctx, vb->vb2_queue->type);
1504
1505 /*
1506 * In the decoder case, immediately try to copy the buffer into the
1507 * bitstream ringbuffer and mark it as ready to be dequeued.
1508 */
1509 if (ctx->bitstream.size && vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1510 /*
1511 * For backwards compatibility, queuing an empty buffer marks
1512 * the stream end
1513 */
1514 if (vb2_get_plane_payload(vb, 0) == 0)
1515 coda_bit_stream_end_flag(ctx);
1516
1517 if (q_data->fourcc == V4L2_PIX_FMT_H264) {
1518 /*
1519 * Unless already done, try to obtain profile_idc and
1520 * level_idc from the SPS header. This allows to decide
1521 * whether to enable reordering during sequence
1522 * initialization.
1523 */
1524 if (!ctx->params.h264_profile_idc) {
1525 coda_sps_parse_profile(ctx, vb);
1526 coda_update_h264_profile_ctrl(ctx);
1527 coda_update_h264_level_ctrl(ctx);
1528 }
1529 }
1530
1531 mutex_lock(&ctx->bitstream_mutex);
1532 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
1533 if (vb2_is_streaming(vb->vb2_queue))
1534 /* This set buf->sequence = ctx->qsequence++ */
1535 coda_fill_bitstream(ctx, NULL);
1536 mutex_unlock(&ctx->bitstream_mutex);
1537 } else {
1538 if (ctx->inst_type == CODA_INST_ENCODER &&
1539 vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1540 vbuf->sequence = ctx->qsequence++;
1541 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
1542 }
1543 }
1544
1545 int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
1546 size_t size, const char *name, struct dentry *parent)
1547 {
1548 buf->vaddr = dma_alloc_coherent(&dev->plat_dev->dev, size, &buf->paddr,
1549 GFP_KERNEL);
1550 if (!buf->vaddr) {
1551 v4l2_err(&dev->v4l2_dev,
1552 "Failed to allocate %s buffer of size %zu\n",
1553 name, size);
1554 return -ENOMEM;
1555 }
1556
1557 buf->size = size;
1558
1559 if (name && parent) {
1560 buf->blob.data = buf->vaddr;
1561 buf->blob.size = size;
1562 buf->dentry = debugfs_create_blob(name, 0644, parent,
1563 &buf->blob);
1564 if (!buf->dentry)
1565 dev_warn(&dev->plat_dev->dev,
1566 "failed to create debugfs entry %s\n", name);
1567 }
1568
1569 return 0;
1570 }
1571
1572 void coda_free_aux_buf(struct coda_dev *dev,
1573 struct coda_aux_buf *buf)
1574 {
1575 if (buf->vaddr) {
1576 dma_free_coherent(&dev->plat_dev->dev, buf->size,
1577 buf->vaddr, buf->paddr);
1578 buf->vaddr = NULL;
1579 buf->size = 0;
1580 debugfs_remove(buf->dentry);
1581 buf->dentry = NULL;
1582 }
1583 }
1584
1585 static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
1586 {
1587 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1588 struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev;
1589 struct coda_q_data *q_data_src, *q_data_dst;
1590 struct v4l2_m2m_buffer *m2m_buf, *tmp;
1591 struct vb2_v4l2_buffer *buf;
1592 struct list_head list;
1593 int ret = 0;
1594
1595 if (count < 1)
1596 return -EINVAL;
1597
1598 INIT_LIST_HEAD(&list);
1599
1600 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1601 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1602 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1603 /* copy the buffers that were queued before streamon */
1604 mutex_lock(&ctx->bitstream_mutex);
1605 coda_fill_bitstream(ctx, &list);
1606 mutex_unlock(&ctx->bitstream_mutex);
1607
1608 if (coda_get_bitstream_payload(ctx) < 512) {
1609 ret = -EINVAL;
1610 goto err;
1611 }
1612 }
1613
1614 ctx->streamon_out = 1;
1615 } else {
1616 ctx->streamon_cap = 1;
1617 }
1618
1619 /* Don't start the coda unless both queues are on */
1620 if (!(ctx->streamon_out && ctx->streamon_cap))
1621 goto out;
1622
1623 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1624 if ((q_data_src->rect.width != q_data_dst->width &&
1625 round_up(q_data_src->rect.width, 16) != q_data_dst->width) ||
1626 (q_data_src->rect.height != q_data_dst->height &&
1627 round_up(q_data_src->rect.height, 16) != q_data_dst->height)) {
1628 v4l2_err(v4l2_dev, "can't convert %dx%d to %dx%d\n",
1629 q_data_src->rect.width, q_data_src->rect.height,
1630 q_data_dst->width, q_data_dst->height);
1631 ret = -EINVAL;
1632 goto err;
1633 }
1634
1635 /* Allow BIT decoder device_run with no new buffers queued */
1636 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
1637 v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true);
1638
1639 ctx->gopcounter = ctx->params.gop_size - 1;
1640
1641 ctx->codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
1642 q_data_dst->fourcc);
1643 if (!ctx->codec) {
1644 v4l2_err(v4l2_dev, "couldn't tell instance type.\n");
1645 ret = -EINVAL;
1646 goto err;
1647 }
1648
1649 if (q_data_dst->fourcc == V4L2_PIX_FMT_JPEG)
1650 ctx->params.gop_size = 1;
1651 ctx->gopcounter = ctx->params.gop_size - 1;
1652
1653 ret = ctx->ops->start_streaming(ctx);
1654 if (ctx->inst_type == CODA_INST_DECODER) {
1655 if (ret == -EAGAIN)
1656 goto out;
1657 }
1658 if (ret < 0)
1659 goto err;
1660
1661 out:
1662 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1663 list_for_each_entry_safe(m2m_buf, tmp, &list, list) {
1664 list_del(&m2m_buf->list);
1665 v4l2_m2m_buf_done(&m2m_buf->vb, VB2_BUF_STATE_DONE);
1666 }
1667 }
1668 return 0;
1669
1670 err:
1671 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1672 list_for_each_entry_safe(m2m_buf, tmp, &list, list) {
1673 list_del(&m2m_buf->list);
1674 v4l2_m2m_buf_done(&m2m_buf->vb, VB2_BUF_STATE_QUEUED);
1675 }
1676 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1677 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1678 } else {
1679 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1680 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1681 }
1682 return ret;
1683 }
1684
1685 static void coda_stop_streaming(struct vb2_queue *q)
1686 {
1687 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1688 struct coda_dev *dev = ctx->dev;
1689 struct vb2_v4l2_buffer *buf;
1690 unsigned long flags;
1691 bool stop;
1692
1693 stop = ctx->streamon_out && ctx->streamon_cap;
1694
1695 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1696 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1697 "%s: output\n", __func__);
1698 ctx->streamon_out = 0;
1699
1700 coda_bit_stream_end_flag(ctx);
1701
1702 ctx->qsequence = 0;
1703
1704 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1705 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1706 } else {
1707 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1708 "%s: capture\n", __func__);
1709 ctx->streamon_cap = 0;
1710
1711 ctx->osequence = 0;
1712 ctx->sequence_offset = 0;
1713
1714 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1715 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1716 }
1717
1718 if (stop) {
1719 struct coda_buffer_meta *meta;
1720
1721 if (ctx->ops->seq_end_work) {
1722 queue_work(dev->workqueue, &ctx->seq_end_work);
1723 flush_work(&ctx->seq_end_work);
1724 }
1725 spin_lock_irqsave(&ctx->buffer_meta_lock, flags);
1726 while (!list_empty(&ctx->buffer_meta_list)) {
1727 meta = list_first_entry(&ctx->buffer_meta_list,
1728 struct coda_buffer_meta, list);
1729 list_del(&meta->list);
1730 kfree(meta);
1731 }
1732 ctx->num_metas = 0;
1733 spin_unlock_irqrestore(&ctx->buffer_meta_lock, flags);
1734 kfifo_init(&ctx->bitstream_fifo,
1735 ctx->bitstream.vaddr, ctx->bitstream.size);
1736 ctx->runcounter = 0;
1737 ctx->aborting = 0;
1738 ctx->hold = false;
1739 }
1740
1741 if (!ctx->streamon_out && !ctx->streamon_cap)
1742 ctx->bit_stream_param &= ~CODA_BIT_STREAM_END_FLAG;
1743 }
1744
1745 static const struct vb2_ops coda_qops = {
1746 .queue_setup = coda_queue_setup,
1747 .buf_prepare = coda_buf_prepare,
1748 .buf_queue = coda_buf_queue,
1749 .start_streaming = coda_start_streaming,
1750 .stop_streaming = coda_stop_streaming,
1751 .wait_prepare = vb2_ops_wait_prepare,
1752 .wait_finish = vb2_ops_wait_finish,
1753 };
1754
1755 static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
1756 {
1757 struct coda_ctx *ctx =
1758 container_of(ctrl->handler, struct coda_ctx, ctrls);
1759
1760 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1761 "s_ctrl: id = %d, val = %d\n", ctrl->id, ctrl->val);
1762
1763 switch (ctrl->id) {
1764 case V4L2_CID_HFLIP:
1765 if (ctrl->val)
1766 ctx->params.rot_mode |= CODA_MIR_HOR;
1767 else
1768 ctx->params.rot_mode &= ~CODA_MIR_HOR;
1769 break;
1770 case V4L2_CID_VFLIP:
1771 if (ctrl->val)
1772 ctx->params.rot_mode |= CODA_MIR_VER;
1773 else
1774 ctx->params.rot_mode &= ~CODA_MIR_VER;
1775 break;
1776 case V4L2_CID_MPEG_VIDEO_BITRATE:
1777 ctx->params.bitrate = ctrl->val / 1000;
1778 break;
1779 case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
1780 ctx->params.gop_size = ctrl->val;
1781 break;
1782 case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
1783 ctx->params.h264_intra_qp = ctrl->val;
1784 break;
1785 case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
1786 ctx->params.h264_inter_qp = ctrl->val;
1787 break;
1788 case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
1789 ctx->params.h264_min_qp = ctrl->val;
1790 break;
1791 case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
1792 ctx->params.h264_max_qp = ctrl->val;
1793 break;
1794 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA:
1795 ctx->params.h264_deblk_alpha = ctrl->val;
1796 break;
1797 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA:
1798 ctx->params.h264_deblk_beta = ctrl->val;
1799 break;
1800 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
1801 ctx->params.h264_deblk_enabled = (ctrl->val ==
1802 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
1803 break;
1804 case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
1805 /* TODO: switch between baseline and constrained baseline */
1806 if (ctx->inst_type == CODA_INST_ENCODER)
1807 ctx->params.h264_profile_idc = 66;
1808 break;
1809 case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
1810 /* nothing to do, this is set by the encoder */
1811 break;
1812 case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
1813 ctx->params.mpeg4_intra_qp = ctrl->val;
1814 break;
1815 case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
1816 ctx->params.mpeg4_inter_qp = ctrl->val;
1817 break;
1818 case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE:
1819 case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL:
1820 /* nothing to do, these are fixed */
1821 break;
1822 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
1823 ctx->params.slice_mode = ctrl->val;
1824 break;
1825 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
1826 ctx->params.slice_max_mb = ctrl->val;
1827 break;
1828 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
1829 ctx->params.slice_max_bits = ctrl->val * 8;
1830 break;
1831 case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
1832 break;
1833 case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB:
1834 ctx->params.intra_refresh = ctrl->val;
1835 break;
1836 case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
1837 ctx->params.force_ipicture = true;
1838 break;
1839 case V4L2_CID_JPEG_COMPRESSION_QUALITY:
1840 coda_set_jpeg_compression_quality(ctx, ctrl->val);
1841 break;
1842 case V4L2_CID_JPEG_RESTART_INTERVAL:
1843 ctx->params.jpeg_restart_interval = ctrl->val;
1844 break;
1845 case V4L2_CID_MPEG_VIDEO_VBV_DELAY:
1846 ctx->params.vbv_delay = ctrl->val;
1847 break;
1848 case V4L2_CID_MPEG_VIDEO_VBV_SIZE:
1849 ctx->params.vbv_size = min(ctrl->val * 8192, 0x7fffffff);
1850 break;
1851 default:
1852 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1853 "Invalid control, id=%d, val=%d\n",
1854 ctrl->id, ctrl->val);
1855 return -EINVAL;
1856 }
1857
1858 return 0;
1859 }
1860
1861 static const struct v4l2_ctrl_ops coda_ctrl_ops = {
1862 .s_ctrl = coda_s_ctrl,
1863 };
1864
1865 static void coda_encode_ctrls(struct coda_ctx *ctx)
1866 {
1867 int max_gop_size = (ctx->dev->devtype->product == CODA_DX6) ? 60 : 99;
1868
1869 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1870 V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1000, 0);
1871 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1872 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 0, max_gop_size, 1, 16);
1873 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1874 V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 0, 51, 1, 25);
1875 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1876 V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 0, 51, 1, 25);
1877 if (ctx->dev->devtype->product != CODA_960) {
1878 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1879 V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 51, 1, 12);
1880 }
1881 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1882 V4L2_CID_MPEG_VIDEO_H264_MAX_QP, 0, 51, 1, 51);
1883 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1884 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA, 0, 15, 1, 0);
1885 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1886 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA, 0, 15, 1, 0);
1887 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1888 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
1889 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED, 0x0,
1890 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
1891 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1892 V4L2_CID_MPEG_VIDEO_H264_PROFILE,
1893 V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE, 0x0,
1894 V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE);
1895 if (ctx->dev->devtype->product == CODA_HX4 ||
1896 ctx->dev->devtype->product == CODA_7541) {
1897 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1898 V4L2_CID_MPEG_VIDEO_H264_LEVEL,
1899 V4L2_MPEG_VIDEO_H264_LEVEL_3_1,
1900 ~((1 << V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
1901 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
1902 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_1)),
1903 V4L2_MPEG_VIDEO_H264_LEVEL_3_1);
1904 }
1905 if (ctx->dev->devtype->product == CODA_960) {
1906 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1907 V4L2_CID_MPEG_VIDEO_H264_LEVEL,
1908 V4L2_MPEG_VIDEO_H264_LEVEL_4_0,
1909 ~((1 << V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
1910 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
1911 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_1) |
1912 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_2) |
1913 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_4_0)),
1914 V4L2_MPEG_VIDEO_H264_LEVEL_4_0);
1915 }
1916 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1917 V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
1918 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1919 V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
1920 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1921 V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE,
1922 V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE, 0x0,
1923 V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE);
1924 if (ctx->dev->devtype->product == CODA_HX4 ||
1925 ctx->dev->devtype->product == CODA_7541 ||
1926 ctx->dev->devtype->product == CODA_960) {
1927 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1928 V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL,
1929 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5,
1930 ~(1 << V4L2_MPEG_VIDEO_MPEG4_LEVEL_5),
1931 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5);
1932 }
1933 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1934 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
1935 V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES, 0x0,
1936 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
1937 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1938 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
1939 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1940 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1,
1941 500);
1942 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1943 V4L2_CID_MPEG_VIDEO_HEADER_MODE,
1944 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
1945 (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE),
1946 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
1947 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1948 V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB, 0,
1949 1920 * 1088 / 256, 1, 0);
1950 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1951 V4L2_CID_MPEG_VIDEO_VBV_DELAY, 0, 0x7fff, 1, 0);
1952 /*
1953 * The maximum VBV size value is 0x7fffffff bits,
1954 * one bit less than 262144 KiB
1955 */
1956 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1957 V4L2_CID_MPEG_VIDEO_VBV_SIZE, 0, 262144, 1, 0);
1958 }
1959
1960 static void coda_jpeg_encode_ctrls(struct coda_ctx *ctx)
1961 {
1962 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1963 V4L2_CID_JPEG_COMPRESSION_QUALITY, 5, 100, 1, 50);
1964 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1965 V4L2_CID_JPEG_RESTART_INTERVAL, 0, 100, 1, 0);
1966 }
1967
1968 static void coda_decode_ctrls(struct coda_ctx *ctx)
1969 {
1970 u64 mask;
1971 u8 max;
1972
1973 ctx->h264_profile_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
1974 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_H264_PROFILE,
1975 V4L2_MPEG_VIDEO_H264_PROFILE_HIGH,
1976 ~((1 << V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE) |
1977 (1 << V4L2_MPEG_VIDEO_H264_PROFILE_MAIN) |
1978 (1 << V4L2_MPEG_VIDEO_H264_PROFILE_HIGH)),
1979 V4L2_MPEG_VIDEO_H264_PROFILE_HIGH);
1980 if (ctx->h264_profile_ctrl)
1981 ctx->h264_profile_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
1982
1983 if (ctx->dev->devtype->product == CODA_HX4 ||
1984 ctx->dev->devtype->product == CODA_7541) {
1985 max = V4L2_MPEG_VIDEO_H264_LEVEL_4_0;
1986 mask = ~((1 << V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
1987 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
1988 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_1) |
1989 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_2) |
1990 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_4_0));
1991 } else if (ctx->dev->devtype->product == CODA_960) {
1992 max = V4L2_MPEG_VIDEO_H264_LEVEL_4_1;
1993 mask = ~((1 << V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
1994 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
1995 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_1) |
1996 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_2) |
1997 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_4_0) |
1998 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_4_1));
1999 } else {
2000 return;
2001 }
2002 ctx->h264_level_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2003 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_H264_LEVEL, max, mask,
2004 max);
2005 if (ctx->h264_level_ctrl)
2006 ctx->h264_level_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2007 }
2008
2009 static int coda_ctrls_setup(struct coda_ctx *ctx)
2010 {
2011 v4l2_ctrl_handler_init(&ctx->ctrls, 2);
2012
2013 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2014 V4L2_CID_HFLIP, 0, 1, 1, 0);
2015 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2016 V4L2_CID_VFLIP, 0, 1, 1, 0);
2017 if (ctx->inst_type == CODA_INST_ENCODER) {
2018 if (ctx->cvd->dst_formats[0] == V4L2_PIX_FMT_JPEG)
2019 coda_jpeg_encode_ctrls(ctx);
2020 else
2021 coda_encode_ctrls(ctx);
2022 } else {
2023 if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_H264)
2024 coda_decode_ctrls(ctx);
2025 }
2026
2027 if (ctx->ctrls.error) {
2028 v4l2_err(&ctx->dev->v4l2_dev,
2029 "control initialization error (%d)",
2030 ctx->ctrls.error);
2031 return -EINVAL;
2032 }
2033
2034 return v4l2_ctrl_handler_setup(&ctx->ctrls);
2035 }
2036
2037 static int coda_queue_init(struct coda_ctx *ctx, struct vb2_queue *vq)
2038 {
2039 vq->drv_priv = ctx;
2040 vq->ops = &coda_qops;
2041 vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
2042 vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
2043 vq->lock = &ctx->dev->dev_mutex;
2044 /* One way to indicate end-of-stream for coda is to set the
2045 * bytesused == 0. However by default videobuf2 handles bytesused
2046 * equal to 0 as a special case and changes its value to the size
2047 * of the buffer. Set the allow_zero_bytesused flag, so
2048 * that videobuf2 will keep the value of bytesused intact.
2049 */
2050 vq->allow_zero_bytesused = 1;
2051 /*
2052 * We might be fine with no buffers on some of the queues, but that
2053 * would need to be reflected in job_ready(). Currently we expect all
2054 * queues to have at least one buffer queued.
2055 */
2056 vq->min_buffers_needed = 1;
2057 vq->dev = &ctx->dev->plat_dev->dev;
2058
2059 return vb2_queue_init(vq);
2060 }
2061
2062 int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
2063 struct vb2_queue *dst_vq)
2064 {
2065 int ret;
2066
2067 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2068 src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2069 src_vq->mem_ops = &vb2_dma_contig_memops;
2070
2071 ret = coda_queue_init(priv, src_vq);
2072 if (ret)
2073 return ret;
2074
2075 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2076 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2077 dst_vq->mem_ops = &vb2_dma_contig_memops;
2078
2079 return coda_queue_init(priv, dst_vq);
2080 }
2081
2082 int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
2083 struct vb2_queue *dst_vq)
2084 {
2085 int ret;
2086
2087 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2088 src_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
2089 src_vq->mem_ops = &vb2_vmalloc_memops;
2090
2091 ret = coda_queue_init(priv, src_vq);
2092 if (ret)
2093 return ret;
2094
2095 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2096 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2097 dst_vq->mem_ops = &vb2_dma_contig_memops;
2098
2099 return coda_queue_init(priv, dst_vq);
2100 }
2101
2102 static int coda_next_free_instance(struct coda_dev *dev)
2103 {
2104 int idx = ffz(dev->instance_mask);
2105
2106 if ((idx < 0) ||
2107 (dev->devtype->product == CODA_DX6 && idx > CODADX6_MAX_INSTANCES))
2108 return -EBUSY;
2109
2110 return idx;
2111 }
2112
2113 /*
2114 * File operations
2115 */
2116
2117 static int coda_open(struct file *file)
2118 {
2119 struct video_device *vdev = video_devdata(file);
2120 struct coda_dev *dev = video_get_drvdata(vdev);
2121 struct coda_ctx *ctx = NULL;
2122 char *name;
2123 int ret;
2124 int idx;
2125
2126 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
2127 if (!ctx)
2128 return -ENOMEM;
2129
2130 idx = coda_next_free_instance(dev);
2131 if (idx < 0) {
2132 ret = idx;
2133 goto err_coda_max;
2134 }
2135 set_bit(idx, &dev->instance_mask);
2136
2137 name = kasprintf(GFP_KERNEL, "context%d", idx);
2138 if (!name) {
2139 ret = -ENOMEM;
2140 goto err_coda_name_init;
2141 }
2142
2143 ctx->debugfs_entry = debugfs_create_dir(name, dev->debugfs_root);
2144 kfree(name);
2145
2146 ctx->cvd = to_coda_video_device(vdev);
2147 ctx->inst_type = ctx->cvd->type;
2148 ctx->ops = ctx->cvd->ops;
2149 ctx->use_bit = !ctx->cvd->direct;
2150 init_completion(&ctx->completion);
2151 INIT_WORK(&ctx->pic_run_work, coda_pic_run_work);
2152 if (ctx->ops->seq_end_work)
2153 INIT_WORK(&ctx->seq_end_work, ctx->ops->seq_end_work);
2154 v4l2_fh_init(&ctx->fh, video_devdata(file));
2155 file->private_data = &ctx->fh;
2156 v4l2_fh_add(&ctx->fh);
2157 ctx->dev = dev;
2158 ctx->idx = idx;
2159 switch (dev->devtype->product) {
2160 case CODA_960:
2161 /*
2162 * Enabling the BWB when decoding can hang the firmware with
2163 * certain streams. The issue was tracked as ENGR00293425 by
2164 * Freescale. As a workaround, disable BWB for all decoders.
2165 * The enable_bwb module parameter allows to override this.
2166 */
2167 if (enable_bwb || ctx->inst_type == CODA_INST_ENCODER)
2168 ctx->frame_mem_ctrl = CODA9_FRAME_ENABLE_BWB;
2169 /* fallthrough */
2170 case CODA_HX4:
2171 case CODA_7541:
2172 ctx->reg_idx = 0;
2173 break;
2174 default:
2175 ctx->reg_idx = idx;
2176 }
2177 if (ctx->dev->vdoa && !disable_vdoa) {
2178 ctx->vdoa = vdoa_context_create(dev->vdoa);
2179 if (!ctx->vdoa)
2180 v4l2_warn(&dev->v4l2_dev,
2181 "Failed to create vdoa context: not using vdoa");
2182 }
2183 ctx->use_vdoa = false;
2184
2185 /* Power up and upload firmware if necessary */
2186 ret = pm_runtime_get_sync(&dev->plat_dev->dev);
2187 if (ret < 0) {
2188 v4l2_err(&dev->v4l2_dev, "failed to power up: %d\n", ret);
2189 goto err_pm_get;
2190 }
2191
2192 ret = clk_prepare_enable(dev->clk_per);
2193 if (ret)
2194 goto err_clk_per;
2195
2196 ret = clk_prepare_enable(dev->clk_ahb);
2197 if (ret)
2198 goto err_clk_ahb;
2199
2200 set_default_params(ctx);
2201 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
2202 ctx->ops->queue_init);
2203 if (IS_ERR(ctx->fh.m2m_ctx)) {
2204 ret = PTR_ERR(ctx->fh.m2m_ctx);
2205
2206 v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
2207 __func__, ret);
2208 goto err_ctx_init;
2209 }
2210
2211 ret = coda_ctrls_setup(ctx);
2212 if (ret) {
2213 v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
2214 goto err_ctrls_setup;
2215 }
2216
2217 ctx->fh.ctrl_handler = &ctx->ctrls;
2218
2219 mutex_init(&ctx->bitstream_mutex);
2220 mutex_init(&ctx->buffer_mutex);
2221 INIT_LIST_HEAD(&ctx->buffer_meta_list);
2222 spin_lock_init(&ctx->buffer_meta_lock);
2223
2224 mutex_lock(&dev->dev_mutex);
2225 list_add(&ctx->list, &dev->instances);
2226 mutex_unlock(&dev->dev_mutex);
2227
2228 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Created instance %d (%p)\n",
2229 ctx->idx, ctx);
2230
2231 return 0;
2232
2233 err_ctrls_setup:
2234 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
2235 err_ctx_init:
2236 clk_disable_unprepare(dev->clk_ahb);
2237 err_clk_ahb:
2238 clk_disable_unprepare(dev->clk_per);
2239 err_clk_per:
2240 pm_runtime_put_sync(&dev->plat_dev->dev);
2241 err_pm_get:
2242 v4l2_fh_del(&ctx->fh);
2243 v4l2_fh_exit(&ctx->fh);
2244 clear_bit(ctx->idx, &dev->instance_mask);
2245 err_coda_name_init:
2246 err_coda_max:
2247 kfree(ctx);
2248 return ret;
2249 }
2250
2251 static int coda_release(struct file *file)
2252 {
2253 struct coda_dev *dev = video_drvdata(file);
2254 struct coda_ctx *ctx = fh_to_ctx(file->private_data);
2255
2256 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Releasing instance %p\n",
2257 ctx);
2258
2259 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
2260 coda_bit_stream_end_flag(ctx);
2261
2262 /* If this instance is running, call .job_abort and wait for it to end */
2263 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
2264
2265 if (ctx->vdoa)
2266 vdoa_context_destroy(ctx->vdoa);
2267
2268 /* In case the instance was not running, we still need to call SEQ_END */
2269 if (ctx->ops->seq_end_work) {
2270 queue_work(dev->workqueue, &ctx->seq_end_work);
2271 flush_work(&ctx->seq_end_work);
2272 }
2273
2274 mutex_lock(&dev->dev_mutex);
2275 list_del(&ctx->list);
2276 mutex_unlock(&dev->dev_mutex);
2277
2278 if (ctx->dev->devtype->product == CODA_DX6)
2279 coda_free_aux_buf(dev, &ctx->workbuf);
2280
2281 v4l2_ctrl_handler_free(&ctx->ctrls);
2282 clk_disable_unprepare(dev->clk_ahb);
2283 clk_disable_unprepare(dev->clk_per);
2284 pm_runtime_put_sync(&dev->plat_dev->dev);
2285 v4l2_fh_del(&ctx->fh);
2286 v4l2_fh_exit(&ctx->fh);
2287 clear_bit(ctx->idx, &dev->instance_mask);
2288 if (ctx->ops->release)
2289 ctx->ops->release(ctx);
2290 debugfs_remove_recursive(ctx->debugfs_entry);
2291 kfree(ctx);
2292
2293 return 0;
2294 }
2295
2296 static const struct v4l2_file_operations coda_fops = {
2297 .owner = THIS_MODULE,
2298 .open = coda_open,
2299 .release = coda_release,
2300 .poll = v4l2_m2m_fop_poll,
2301 .unlocked_ioctl = video_ioctl2,
2302 .mmap = v4l2_m2m_fop_mmap,
2303 };
2304
2305 static int coda_hw_init(struct coda_dev *dev)
2306 {
2307 u32 data;
2308 u16 *p;
2309 int i, ret;
2310
2311 ret = clk_prepare_enable(dev->clk_per);
2312 if (ret)
2313 goto err_clk_per;
2314
2315 ret = clk_prepare_enable(dev->clk_ahb);
2316 if (ret)
2317 goto err_clk_ahb;
2318
2319 reset_control_reset(dev->rstc);
2320
2321 /*
2322 * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
2323 * The 16-bit chars in the code buffer are in memory access
2324 * order, re-sort them to CODA order for register download.
2325 * Data in this SRAM survives a reboot.
2326 */
2327 p = (u16 *)dev->codebuf.vaddr;
2328 if (dev->devtype->product == CODA_DX6) {
2329 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2330 data = CODA_DOWN_ADDRESS_SET(i) |
2331 CODA_DOWN_DATA_SET(p[i ^ 1]);
2332 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2333 }
2334 } else {
2335 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2336 data = CODA_DOWN_ADDRESS_SET(i) |
2337 CODA_DOWN_DATA_SET(p[round_down(i, 4) +
2338 3 - (i % 4)]);
2339 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2340 }
2341 }
2342
2343 /* Clear registers */
2344 for (i = 0; i < 64; i++)
2345 coda_write(dev, 0, CODA_REG_BIT_CODE_BUF_ADDR + i * 4);
2346
2347 /* Tell the BIT where to find everything it needs */
2348 if (dev->devtype->product == CODA_960 ||
2349 dev->devtype->product == CODA_7541 ||
2350 dev->devtype->product == CODA_HX4) {
2351 coda_write(dev, dev->tempbuf.paddr,
2352 CODA_REG_BIT_TEMP_BUF_ADDR);
2353 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
2354 } else {
2355 coda_write(dev, dev->workbuf.paddr,
2356 CODA_REG_BIT_WORK_BUF_ADDR);
2357 }
2358 coda_write(dev, dev->codebuf.paddr,
2359 CODA_REG_BIT_CODE_BUF_ADDR);
2360 coda_write(dev, 0, CODA_REG_BIT_CODE_RUN);
2361
2362 /* Set default values */
2363 switch (dev->devtype->product) {
2364 case CODA_DX6:
2365 coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH,
2366 CODA_REG_BIT_STREAM_CTRL);
2367 break;
2368 default:
2369 coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH,
2370 CODA_REG_BIT_STREAM_CTRL);
2371 }
2372 if (dev->devtype->product == CODA_960)
2373 coda_write(dev, CODA9_FRAME_ENABLE_BWB,
2374 CODA_REG_BIT_FRAME_MEM_CTRL);
2375 else
2376 coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL);
2377
2378 if (dev->devtype->product != CODA_DX6)
2379 coda_write(dev, 0, CODA7_REG_BIT_AXI_SRAM_USE);
2380
2381 coda_write(dev, CODA_INT_INTERRUPT_ENABLE,
2382 CODA_REG_BIT_INT_ENABLE);
2383
2384 /* Reset VPU and start processor */
2385 data = coda_read(dev, CODA_REG_BIT_CODE_RESET);
2386 data |= CODA_REG_RESET_ENABLE;
2387 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2388 udelay(10);
2389 data &= ~CODA_REG_RESET_ENABLE;
2390 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2391 coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
2392
2393 clk_disable_unprepare(dev->clk_ahb);
2394 clk_disable_unprepare(dev->clk_per);
2395
2396 return 0;
2397
2398 err_clk_ahb:
2399 clk_disable_unprepare(dev->clk_per);
2400 err_clk_per:
2401 return ret;
2402 }
2403
2404 static int coda_register_device(struct coda_dev *dev, int i)
2405 {
2406 struct video_device *vfd = &dev->vfd[i];
2407
2408 if (i >= dev->devtype->num_vdevs)
2409 return -EINVAL;
2410
2411 strscpy(vfd->name, dev->devtype->vdevs[i]->name, sizeof(vfd->name));
2412 vfd->fops = &coda_fops;
2413 vfd->ioctl_ops = &coda_ioctl_ops;
2414 vfd->release = video_device_release_empty,
2415 vfd->lock = &dev->dev_mutex;
2416 vfd->v4l2_dev = &dev->v4l2_dev;
2417 vfd->vfl_dir = VFL_DIR_M2M;
2418 video_set_drvdata(vfd, dev);
2419
2420 /* Not applicable, use the selection API instead */
2421 v4l2_disable_ioctl(vfd, VIDIOC_CROPCAP);
2422 v4l2_disable_ioctl(vfd, VIDIOC_G_CROP);
2423 v4l2_disable_ioctl(vfd, VIDIOC_S_CROP);
2424
2425 return video_register_device(vfd, VFL_TYPE_GRABBER, 0);
2426 }
2427
2428 static void coda_copy_firmware(struct coda_dev *dev, const u8 * const buf,
2429 size_t size)
2430 {
2431 u32 *src = (u32 *)buf;
2432
2433 /* Check if the firmware has a 16-byte Freescale header, skip it */
2434 if (buf[0] == 'M' && buf[1] == 'X')
2435 src += 4;
2436 /*
2437 * Check whether the firmware is in native order or pre-reordered for
2438 * memory access. The first instruction opcode always is 0xe40e.
2439 */
2440 if (__le16_to_cpup((__le16 *)src) == 0xe40e) {
2441 u32 *dst = dev->codebuf.vaddr;
2442 int i;
2443
2444 /* Firmware in native order, reorder while copying */
2445 if (dev->devtype->product == CODA_DX6) {
2446 for (i = 0; i < (size - 16) / 4; i++)
2447 dst[i] = (src[i] << 16) | (src[i] >> 16);
2448 } else {
2449 for (i = 0; i < (size - 16) / 4; i += 2) {
2450 dst[i] = (src[i + 1] << 16) | (src[i + 1] >> 16);
2451 dst[i + 1] = (src[i] << 16) | (src[i] >> 16);
2452 }
2453 }
2454 } else {
2455 /* Copy the already reordered firmware image */
2456 memcpy(dev->codebuf.vaddr, src, size);
2457 }
2458 }
2459
2460 static void coda_fw_callback(const struct firmware *fw, void *context);
2461
2462 static int coda_firmware_request(struct coda_dev *dev)
2463 {
2464 char *fw;
2465
2466 if (dev->firmware >= ARRAY_SIZE(dev->devtype->firmware))
2467 return -EINVAL;
2468
2469 fw = dev->devtype->firmware[dev->firmware];
2470
2471 dev_dbg(&dev->plat_dev->dev, "requesting firmware '%s' for %s\n", fw,
2472 coda_product_name(dev->devtype->product));
2473
2474 return request_firmware_nowait(THIS_MODULE, true, fw,
2475 &dev->plat_dev->dev, GFP_KERNEL, dev,
2476 coda_fw_callback);
2477 }
2478
2479 static void coda_fw_callback(const struct firmware *fw, void *context)
2480 {
2481 struct coda_dev *dev = context;
2482 struct platform_device *pdev = dev->plat_dev;
2483 int i, ret;
2484
2485 if (!fw) {
2486 dev->firmware++;
2487 ret = coda_firmware_request(dev);
2488 if (ret < 0) {
2489 v4l2_err(&dev->v4l2_dev, "firmware request failed\n");
2490 goto put_pm;
2491 }
2492 return;
2493 }
2494 if (dev->firmware > 0) {
2495 /*
2496 * Since we can't suppress warnings for failed asynchronous
2497 * firmware requests, report that the fallback firmware was
2498 * found.
2499 */
2500 dev_info(&pdev->dev, "Using fallback firmware %s\n",
2501 dev->devtype->firmware[dev->firmware]);
2502 }
2503
2504 /* allocate auxiliary per-device code buffer for the BIT processor */
2505 ret = coda_alloc_aux_buf(dev, &dev->codebuf, fw->size, "codebuf",
2506 dev->debugfs_root);
2507 if (ret < 0)
2508 goto put_pm;
2509
2510 coda_copy_firmware(dev, fw->data, fw->size);
2511 release_firmware(fw);
2512
2513 ret = coda_hw_init(dev);
2514 if (ret < 0) {
2515 v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
2516 goto put_pm;
2517 }
2518
2519 ret = coda_check_firmware(dev);
2520 if (ret < 0)
2521 goto put_pm;
2522
2523 dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops);
2524 if (IS_ERR(dev->m2m_dev)) {
2525 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
2526 goto put_pm;
2527 }
2528
2529 for (i = 0; i < dev->devtype->num_vdevs; i++) {
2530 ret = coda_register_device(dev, i);
2531 if (ret) {
2532 v4l2_err(&dev->v4l2_dev,
2533 "Failed to register %s video device: %d\n",
2534 dev->devtype->vdevs[i]->name, ret);
2535 goto rel_vfd;
2536 }
2537 }
2538
2539 v4l2_info(&dev->v4l2_dev, "codec registered as /dev/video[%d-%d]\n",
2540 dev->vfd[0].num, dev->vfd[i - 1].num);
2541
2542 pm_runtime_put_sync(&pdev->dev);
2543 return;
2544
2545 rel_vfd:
2546 while (--i >= 0)
2547 video_unregister_device(&dev->vfd[i]);
2548 v4l2_m2m_release(dev->m2m_dev);
2549 put_pm:
2550 pm_runtime_put_sync(&pdev->dev);
2551 }
2552
2553 enum coda_platform {
2554 CODA_IMX27,
2555 CODA_IMX51,
2556 CODA_IMX53,
2557 CODA_IMX6Q,
2558 CODA_IMX6DL,
2559 };
2560
2561 static const struct coda_devtype coda_devdata[] = {
2562 [CODA_IMX27] = {
2563 .firmware = {
2564 "vpu_fw_imx27_TO2.bin",
2565 "vpu/vpu_fw_imx27_TO2.bin",
2566 "v4l-codadx6-imx27.bin"
2567 },
2568 .product = CODA_DX6,
2569 .codecs = codadx6_codecs,
2570 .num_codecs = ARRAY_SIZE(codadx6_codecs),
2571 .vdevs = codadx6_video_devices,
2572 .num_vdevs = ARRAY_SIZE(codadx6_video_devices),
2573 .workbuf_size = 288 * 1024 + FMO_SLICE_SAVE_BUF_SIZE * 8 * 1024,
2574 .iram_size = 0xb000,
2575 },
2576 [CODA_IMX51] = {
2577 .firmware = {
2578 "vpu_fw_imx51.bin",
2579 "vpu/vpu_fw_imx51.bin",
2580 "v4l-codahx4-imx51.bin"
2581 },
2582 .product = CODA_HX4,
2583 .codecs = codahx4_codecs,
2584 .num_codecs = ARRAY_SIZE(codahx4_codecs),
2585 .vdevs = codahx4_video_devices,
2586 .num_vdevs = ARRAY_SIZE(codahx4_video_devices),
2587 .workbuf_size = 128 * 1024,
2588 .tempbuf_size = 304 * 1024,
2589 .iram_size = 0x14000,
2590 },
2591 [CODA_IMX53] = {
2592 .firmware = {
2593 "vpu_fw_imx53.bin",
2594 "vpu/vpu_fw_imx53.bin",
2595 "v4l-coda7541-imx53.bin"
2596 },
2597 .product = CODA_7541,
2598 .codecs = coda7_codecs,
2599 .num_codecs = ARRAY_SIZE(coda7_codecs),
2600 .vdevs = coda7_video_devices,
2601 .num_vdevs = ARRAY_SIZE(coda7_video_devices),
2602 .workbuf_size = 128 * 1024,
2603 .tempbuf_size = 304 * 1024,
2604 .iram_size = 0x14000,
2605 },
2606 [CODA_IMX6Q] = {
2607 .firmware = {
2608 "vpu_fw_imx6q.bin",
2609 "vpu/vpu_fw_imx6q.bin",
2610 "v4l-coda960-imx6q.bin"
2611 },
2612 .product = CODA_960,
2613 .codecs = coda9_codecs,
2614 .num_codecs = ARRAY_SIZE(coda9_codecs),
2615 .vdevs = coda9_video_devices,
2616 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
2617 .workbuf_size = 80 * 1024,
2618 .tempbuf_size = 204 * 1024,
2619 .iram_size = 0x21000,
2620 },
2621 [CODA_IMX6DL] = {
2622 .firmware = {
2623 "vpu_fw_imx6d.bin",
2624 "vpu/vpu_fw_imx6d.bin",
2625 "v4l-coda960-imx6dl.bin"
2626 },
2627 .product = CODA_960,
2628 .codecs = coda9_codecs,
2629 .num_codecs = ARRAY_SIZE(coda9_codecs),
2630 .vdevs = coda9_video_devices,
2631 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
2632 .workbuf_size = 80 * 1024,
2633 .tempbuf_size = 204 * 1024,
2634 .iram_size = 0x1f000, /* leave 4k for suspend code */
2635 },
2636 };
2637
2638 static const struct platform_device_id coda_platform_ids[] = {
2639 { .name = "coda-imx27", .driver_data = CODA_IMX27 },
2640 { /* sentinel */ }
2641 };
2642 MODULE_DEVICE_TABLE(platform, coda_platform_ids);
2643
2644 #ifdef CONFIG_OF
2645 static const struct of_device_id coda_dt_ids[] = {
2646 { .compatible = "fsl,imx27-vpu", .data = &coda_devdata[CODA_IMX27] },
2647 { .compatible = "fsl,imx51-vpu", .data = &coda_devdata[CODA_IMX51] },
2648 { .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] },
2649 { .compatible = "fsl,imx6q-vpu", .data = &coda_devdata[CODA_IMX6Q] },
2650 { .compatible = "fsl,imx6dl-vpu", .data = &coda_devdata[CODA_IMX6DL] },
2651 { /* sentinel */ }
2652 };
2653 MODULE_DEVICE_TABLE(of, coda_dt_ids);
2654 #endif
2655
2656 static int coda_probe(struct platform_device *pdev)
2657 {
2658 const struct of_device_id *of_id =
2659 of_match_device(of_match_ptr(coda_dt_ids), &pdev->dev);
2660 const struct platform_device_id *pdev_id;
2661 struct coda_platform_data *pdata = pdev->dev.platform_data;
2662 struct device_node *np = pdev->dev.of_node;
2663 struct gen_pool *pool;
2664 struct coda_dev *dev;
2665 struct resource *res;
2666 int ret, irq;
2667
2668 dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
2669 if (!dev)
2670 return -ENOMEM;
2671
2672 pdev_id = of_id ? of_id->data : platform_get_device_id(pdev);
2673
2674 if (of_id)
2675 dev->devtype = of_id->data;
2676 else if (pdev_id)
2677 dev->devtype = &coda_devdata[pdev_id->driver_data];
2678 else
2679 return -EINVAL;
2680
2681 spin_lock_init(&dev->irqlock);
2682 INIT_LIST_HEAD(&dev->instances);
2683
2684 dev->plat_dev = pdev;
2685 dev->clk_per = devm_clk_get(&pdev->dev, "per");
2686 if (IS_ERR(dev->clk_per)) {
2687 dev_err(&pdev->dev, "Could not get per clock\n");
2688 return PTR_ERR(dev->clk_per);
2689 }
2690
2691 dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
2692 if (IS_ERR(dev->clk_ahb)) {
2693 dev_err(&pdev->dev, "Could not get ahb clock\n");
2694 return PTR_ERR(dev->clk_ahb);
2695 }
2696
2697 /* Get memory for physical registers */
2698 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2699 dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
2700 if (IS_ERR(dev->regs_base))
2701 return PTR_ERR(dev->regs_base);
2702
2703 /* IRQ */
2704 irq = platform_get_irq_byname(pdev, "bit");
2705 if (irq < 0)
2706 irq = platform_get_irq(pdev, 0);
2707 if (irq < 0) {
2708 dev_err(&pdev->dev, "failed to get irq resource\n");
2709 return irq;
2710 }
2711
2712 ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, coda_irq_handler,
2713 IRQF_ONESHOT, dev_name(&pdev->dev), dev);
2714 if (ret < 0) {
2715 dev_err(&pdev->dev, "failed to request irq: %d\n", ret);
2716 return ret;
2717 }
2718
2719 dev->rstc = devm_reset_control_get_optional_exclusive(&pdev->dev,
2720 NULL);
2721 if (IS_ERR(dev->rstc)) {
2722 ret = PTR_ERR(dev->rstc);
2723 dev_err(&pdev->dev, "failed get reset control: %d\n", ret);
2724 return ret;
2725 }
2726
2727 /* Get IRAM pool from device tree or platform data */
2728 pool = of_gen_pool_get(np, "iram", 0);
2729 if (!pool && pdata)
2730 pool = gen_pool_get(pdata->iram_dev, NULL);
2731 if (!pool) {
2732 dev_err(&pdev->dev, "iram pool not available\n");
2733 return -ENOMEM;
2734 }
2735 dev->iram_pool = pool;
2736
2737 /* Get vdoa_data if supported by the platform */
2738 dev->vdoa = coda_get_vdoa_data();
2739 if (PTR_ERR(dev->vdoa) == -EPROBE_DEFER)
2740 return -EPROBE_DEFER;
2741
2742 ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
2743 if (ret)
2744 return ret;
2745
2746 mutex_init(&dev->dev_mutex);
2747 mutex_init(&dev->coda_mutex);
2748
2749 dev->debugfs_root = debugfs_create_dir("coda", NULL);
2750 if (!dev->debugfs_root)
2751 dev_warn(&pdev->dev, "failed to create debugfs root\n");
2752
2753 /* allocate auxiliary per-device buffers for the BIT processor */
2754 if (dev->devtype->product == CODA_DX6) {
2755 ret = coda_alloc_aux_buf(dev, &dev->workbuf,
2756 dev->devtype->workbuf_size, "workbuf",
2757 dev->debugfs_root);
2758 if (ret < 0)
2759 goto err_v4l2_register;
2760 }
2761
2762 if (dev->devtype->tempbuf_size) {
2763 ret = coda_alloc_aux_buf(dev, &dev->tempbuf,
2764 dev->devtype->tempbuf_size, "tempbuf",
2765 dev->debugfs_root);
2766 if (ret < 0)
2767 goto err_v4l2_register;
2768 }
2769
2770 dev->iram.size = dev->devtype->iram_size;
2771 dev->iram.vaddr = gen_pool_dma_alloc(dev->iram_pool, dev->iram.size,
2772 &dev->iram.paddr);
2773 if (!dev->iram.vaddr) {
2774 dev_warn(&pdev->dev, "unable to alloc iram\n");
2775 } else {
2776 memset(dev->iram.vaddr, 0, dev->iram.size);
2777 dev->iram.blob.data = dev->iram.vaddr;
2778 dev->iram.blob.size = dev->iram.size;
2779 dev->iram.dentry = debugfs_create_blob("iram", 0644,
2780 dev->debugfs_root,
2781 &dev->iram.blob);
2782 }
2783
2784 dev->workqueue = alloc_workqueue("coda", WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
2785 if (!dev->workqueue) {
2786 dev_err(&pdev->dev, "unable to alloc workqueue\n");
2787 ret = -ENOMEM;
2788 goto err_v4l2_register;
2789 }
2790
2791 platform_set_drvdata(pdev, dev);
2792
2793 /*
2794 * Start activated so we can directly call coda_hw_init in
2795 * coda_fw_callback regardless of whether CONFIG_PM is
2796 * enabled or whether the device is associated with a PM domain.
2797 */
2798 pm_runtime_get_noresume(&pdev->dev);
2799 pm_runtime_set_active(&pdev->dev);
2800 pm_runtime_enable(&pdev->dev);
2801
2802 ret = coda_firmware_request(dev);
2803 if (ret)
2804 goto err_alloc_workqueue;
2805 return 0;
2806
2807 err_alloc_workqueue:
2808 destroy_workqueue(dev->workqueue);
2809 err_v4l2_register:
2810 v4l2_device_unregister(&dev->v4l2_dev);
2811 return ret;
2812 }
2813
2814 static int coda_remove(struct platform_device *pdev)
2815 {
2816 struct coda_dev *dev = platform_get_drvdata(pdev);
2817 int i;
2818
2819 for (i = 0; i < ARRAY_SIZE(dev->vfd); i++) {
2820 if (video_get_drvdata(&dev->vfd[i]))
2821 video_unregister_device(&dev->vfd[i]);
2822 }
2823 if (dev->m2m_dev)
2824 v4l2_m2m_release(dev->m2m_dev);
2825 pm_runtime_disable(&pdev->dev);
2826 v4l2_device_unregister(&dev->v4l2_dev);
2827 destroy_workqueue(dev->workqueue);
2828 if (dev->iram.vaddr)
2829 gen_pool_free(dev->iram_pool, (unsigned long)dev->iram.vaddr,
2830 dev->iram.size);
2831 coda_free_aux_buf(dev, &dev->codebuf);
2832 coda_free_aux_buf(dev, &dev->tempbuf);
2833 coda_free_aux_buf(dev, &dev->workbuf);
2834 debugfs_remove_recursive(dev->debugfs_root);
2835 return 0;
2836 }
2837
2838 #ifdef CONFIG_PM
2839 static int coda_runtime_resume(struct device *dev)
2840 {
2841 struct coda_dev *cdev = dev_get_drvdata(dev);
2842 int ret = 0;
2843
2844 if (dev->pm_domain && cdev->codebuf.vaddr) {
2845 ret = coda_hw_init(cdev);
2846 if (ret)
2847 v4l2_err(&cdev->v4l2_dev, "HW initialization failed\n");
2848 }
2849
2850 return ret;
2851 }
2852 #endif
2853
2854 static const struct dev_pm_ops coda_pm_ops = {
2855 SET_RUNTIME_PM_OPS(NULL, coda_runtime_resume, NULL)
2856 };
2857
2858 static struct platform_driver coda_driver = {
2859 .probe = coda_probe,
2860 .remove = coda_remove,
2861 .driver = {
2862 .name = CODA_NAME,
2863 .of_match_table = of_match_ptr(coda_dt_ids),
2864 .pm = &coda_pm_ops,
2865 },
2866 .id_table = coda_platform_ids,
2867 };
2868
2869 module_platform_driver(coda_driver);
2870
2871 MODULE_LICENSE("GPL");
2872 MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
2873 MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver");
Linux with added FPC-III support