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[mirror_ubuntu-artful-kernel.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/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, 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.MX5x -> coda7
132 * i.MX6 -> coda960
133 * Use V4L2_PIX_FMT_YUV420 as placeholder for all supported YUV 4:2:0 variants
134 */
135 static const struct coda_codec codadx6_codecs[] = {
136 CODA_CODEC(CODADX6_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576),
137 CODA_CODEC(CODADX6_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 720, 576),
138 };
139
140 static const struct coda_codec coda7_codecs[] = {
141 CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1280, 720),
142 CODA_CODEC(CODA7_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1280, 720),
143 CODA_CODEC(CODA7_MODE_ENCODE_MJPG, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_JPEG, 8192, 8192),
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, 1920, 1088),
147 CODA_CODEC(CODA7_MODE_DECODE_MJPG, V4L2_PIX_FMT_JPEG, V4L2_PIX_FMT_YUV420, 8192, 8192),
148 };
149
150 static const struct coda_codec coda9_codecs[] = {
151 CODA_CODEC(CODA9_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1920, 1088),
152 CODA_CODEC(CODA9_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1920, 1088),
153 CODA_CODEC(CODA9_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
154 CODA_CODEC(CODA9_MODE_DECODE_MP2, V4L2_PIX_FMT_MPEG2, V4L2_PIX_FMT_YUV420, 1920, 1088),
155 CODA_CODEC(CODA9_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
156 };
157
158 struct coda_video_device {
159 const char *name;
160 enum coda_inst_type type;
161 const struct coda_context_ops *ops;
162 bool direct;
163 u32 src_formats[CODA_MAX_FORMATS];
164 u32 dst_formats[CODA_MAX_FORMATS];
165 };
166
167 static const struct coda_video_device coda_bit_encoder = {
168 .name = "coda-encoder",
169 .type = CODA_INST_ENCODER,
170 .ops = &coda_bit_encode_ops,
171 .src_formats = {
172 V4L2_PIX_FMT_NV12,
173 V4L2_PIX_FMT_YUV420,
174 V4L2_PIX_FMT_YVU420,
175 },
176 .dst_formats = {
177 V4L2_PIX_FMT_H264,
178 V4L2_PIX_FMT_MPEG4,
179 },
180 };
181
182 static const struct coda_video_device coda_bit_jpeg_encoder = {
183 .name = "coda-jpeg-encoder",
184 .type = CODA_INST_ENCODER,
185 .ops = &coda_bit_encode_ops,
186 .src_formats = {
187 V4L2_PIX_FMT_NV12,
188 V4L2_PIX_FMT_YUV420,
189 V4L2_PIX_FMT_YVU420,
190 V4L2_PIX_FMT_YUV422P,
191 },
192 .dst_formats = {
193 V4L2_PIX_FMT_JPEG,
194 },
195 };
196
197 static const struct coda_video_device coda_bit_decoder = {
198 .name = "coda-decoder",
199 .type = CODA_INST_DECODER,
200 .ops = &coda_bit_decode_ops,
201 .src_formats = {
202 V4L2_PIX_FMT_H264,
203 V4L2_PIX_FMT_MPEG2,
204 V4L2_PIX_FMT_MPEG4,
205 },
206 .dst_formats = {
207 V4L2_PIX_FMT_NV12,
208 V4L2_PIX_FMT_YUV420,
209 V4L2_PIX_FMT_YVU420,
210 /*
211 * If V4L2_PIX_FMT_YUYV should be default,
212 * set_default_params() must be adjusted.
213 */
214 V4L2_PIX_FMT_YUYV,
215 },
216 };
217
218 static const struct coda_video_device coda_bit_jpeg_decoder = {
219 .name = "coda-jpeg-decoder",
220 .type = CODA_INST_DECODER,
221 .ops = &coda_bit_decode_ops,
222 .src_formats = {
223 V4L2_PIX_FMT_JPEG,
224 },
225 .dst_formats = {
226 V4L2_PIX_FMT_NV12,
227 V4L2_PIX_FMT_YUV420,
228 V4L2_PIX_FMT_YVU420,
229 V4L2_PIX_FMT_YUV422P,
230 },
231 };
232
233 static const struct coda_video_device *codadx6_video_devices[] = {
234 &coda_bit_encoder,
235 };
236
237 static const struct coda_video_device *coda7_video_devices[] = {
238 &coda_bit_jpeg_encoder,
239 &coda_bit_jpeg_decoder,
240 &coda_bit_encoder,
241 &coda_bit_decoder,
242 };
243
244 static const struct coda_video_device *coda9_video_devices[] = {
245 &coda_bit_encoder,
246 &coda_bit_decoder,
247 };
248
249 /*
250 * Normalize all supported YUV 4:2:0 formats to the value used in the codec
251 * tables.
252 */
253 static u32 coda_format_normalize_yuv(u32 fourcc)
254 {
255 switch (fourcc) {
256 case V4L2_PIX_FMT_NV12:
257 case V4L2_PIX_FMT_YUV420:
258 case V4L2_PIX_FMT_YVU420:
259 case V4L2_PIX_FMT_YUV422P:
260 case V4L2_PIX_FMT_YUYV:
261 return V4L2_PIX_FMT_YUV420;
262 default:
263 return fourcc;
264 }
265 }
266
267 static const struct coda_codec *coda_find_codec(struct coda_dev *dev,
268 int src_fourcc, int dst_fourcc)
269 {
270 const struct coda_codec *codecs = dev->devtype->codecs;
271 int num_codecs = dev->devtype->num_codecs;
272 int k;
273
274 src_fourcc = coda_format_normalize_yuv(src_fourcc);
275 dst_fourcc = coda_format_normalize_yuv(dst_fourcc);
276 if (src_fourcc == dst_fourcc)
277 return NULL;
278
279 for (k = 0; k < num_codecs; k++) {
280 if (codecs[k].src_fourcc == src_fourcc &&
281 codecs[k].dst_fourcc == dst_fourcc)
282 break;
283 }
284
285 if (k == num_codecs)
286 return NULL;
287
288 return &codecs[k];
289 }
290
291 static void coda_get_max_dimensions(struct coda_dev *dev,
292 const struct coda_codec *codec,
293 int *max_w, int *max_h)
294 {
295 const struct coda_codec *codecs = dev->devtype->codecs;
296 int num_codecs = dev->devtype->num_codecs;
297 unsigned int w, h;
298 int k;
299
300 if (codec) {
301 w = codec->max_w;
302 h = codec->max_h;
303 } else {
304 for (k = 0, w = 0, h = 0; k < num_codecs; k++) {
305 w = max(w, codecs[k].max_w);
306 h = max(h, codecs[k].max_h);
307 }
308 }
309
310 if (max_w)
311 *max_w = w;
312 if (max_h)
313 *max_h = h;
314 }
315
316 static const struct coda_video_device *to_coda_video_device(struct video_device
317 *vdev)
318 {
319 struct coda_dev *dev = video_get_drvdata(vdev);
320 unsigned int i = vdev - dev->vfd;
321
322 if (i >= dev->devtype->num_vdevs)
323 return NULL;
324
325 return dev->devtype->vdevs[i];
326 }
327
328 const char *coda_product_name(int product)
329 {
330 static char buf[9];
331
332 switch (product) {
333 case CODA_DX6:
334 return "CodaDx6";
335 case CODA_7541:
336 return "CODA7541";
337 case CODA_960:
338 return "CODA960";
339 default:
340 snprintf(buf, sizeof(buf), "(0x%04x)", product);
341 return buf;
342 }
343 }
344
345 static struct vdoa_data *coda_get_vdoa_data(void)
346 {
347 struct device_node *vdoa_node;
348 struct platform_device *vdoa_pdev;
349 struct vdoa_data *vdoa_data = NULL;
350
351 vdoa_node = of_find_compatible_node(NULL, NULL, "fsl,imx6q-vdoa");
352 if (!vdoa_node)
353 return NULL;
354
355 vdoa_pdev = of_find_device_by_node(vdoa_node);
356 if (!vdoa_pdev)
357 goto out;
358
359 vdoa_data = platform_get_drvdata(vdoa_pdev);
360 if (!vdoa_data)
361 vdoa_data = ERR_PTR(-EPROBE_DEFER);
362
363 out:
364 if (vdoa_node)
365 of_node_put(vdoa_node);
366
367 return vdoa_data;
368 }
369
370 /*
371 * V4L2 ioctl() operations.
372 */
373 static int coda_querycap(struct file *file, void *priv,
374 struct v4l2_capability *cap)
375 {
376 struct coda_ctx *ctx = fh_to_ctx(priv);
377
378 strlcpy(cap->driver, CODA_NAME, sizeof(cap->driver));
379 strlcpy(cap->card, coda_product_name(ctx->dev->devtype->product),
380 sizeof(cap->card));
381 strlcpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
382 cap->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
383 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
384
385 return 0;
386 }
387
388 static int coda_enum_fmt(struct file *file, void *priv,
389 struct v4l2_fmtdesc *f)
390 {
391 struct video_device *vdev = video_devdata(file);
392 const struct coda_video_device *cvd = to_coda_video_device(vdev);
393 struct coda_ctx *ctx = fh_to_ctx(priv);
394 const u32 *formats;
395
396 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
397 formats = cvd->src_formats;
398 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
399 formats = cvd->dst_formats;
400 else
401 return -EINVAL;
402
403 if (f->index >= CODA_MAX_FORMATS || formats[f->index] == 0)
404 return -EINVAL;
405
406 /* Skip YUYV if the vdoa is not available */
407 if (!ctx->vdoa && f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
408 formats[f->index] == V4L2_PIX_FMT_YUYV)
409 return -EINVAL;
410
411 f->pixelformat = formats[f->index];
412
413 return 0;
414 }
415
416 static int coda_g_fmt(struct file *file, void *priv,
417 struct v4l2_format *f)
418 {
419 struct coda_q_data *q_data;
420 struct coda_ctx *ctx = fh_to_ctx(priv);
421
422 q_data = get_q_data(ctx, f->type);
423 if (!q_data)
424 return -EINVAL;
425
426 f->fmt.pix.field = V4L2_FIELD_NONE;
427 f->fmt.pix.pixelformat = q_data->fourcc;
428 f->fmt.pix.width = q_data->width;
429 f->fmt.pix.height = q_data->height;
430 f->fmt.pix.bytesperline = q_data->bytesperline;
431
432 f->fmt.pix.sizeimage = q_data->sizeimage;
433 f->fmt.pix.colorspace = ctx->colorspace;
434 f->fmt.pix.xfer_func = ctx->xfer_func;
435 f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
436 f->fmt.pix.quantization = ctx->quantization;
437
438 return 0;
439 }
440
441 static int coda_try_pixelformat(struct coda_ctx *ctx, struct v4l2_format *f)
442 {
443 struct coda_q_data *q_data;
444 const u32 *formats;
445 int i;
446
447 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
448 formats = ctx->cvd->src_formats;
449 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
450 formats = ctx->cvd->dst_formats;
451 else
452 return -EINVAL;
453
454 for (i = 0; i < CODA_MAX_FORMATS; i++) {
455 /* Skip YUYV if the vdoa is not available */
456 if (!ctx->vdoa && f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
457 formats[i] == V4L2_PIX_FMT_YUYV)
458 continue;
459
460 if (formats[i] == f->fmt.pix.pixelformat) {
461 f->fmt.pix.pixelformat = formats[i];
462 return 0;
463 }
464 }
465
466 /* Fall back to currently set pixelformat */
467 q_data = get_q_data(ctx, f->type);
468 f->fmt.pix.pixelformat = q_data->fourcc;
469
470 return 0;
471 }
472
473 static int coda_try_fmt_vdoa(struct coda_ctx *ctx, struct v4l2_format *f,
474 bool *use_vdoa)
475 {
476 int err;
477
478 if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
479 return -EINVAL;
480
481 if (!use_vdoa)
482 return -EINVAL;
483
484 if (!ctx->vdoa) {
485 *use_vdoa = false;
486 return 0;
487 }
488
489 err = vdoa_context_configure(NULL, f->fmt.pix.width, f->fmt.pix.height,
490 f->fmt.pix.pixelformat);
491 if (err) {
492 *use_vdoa = false;
493 return 0;
494 }
495
496 *use_vdoa = true;
497 return 0;
498 }
499
500 static unsigned int coda_estimate_sizeimage(struct coda_ctx *ctx, u32 sizeimage,
501 u32 width, u32 height)
502 {
503 /*
504 * This is a rough estimate for sensible compressed buffer
505 * sizes (between 1 and 16 bits per pixel). This could be
506 * improved by better format specific worst case estimates.
507 */
508 return round_up(clamp(sizeimage, width * height / 8,
509 width * height * 2), PAGE_SIZE);
510 }
511
512 static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
513 struct v4l2_format *f)
514 {
515 struct coda_dev *dev = ctx->dev;
516 unsigned int max_w, max_h;
517 enum v4l2_field field;
518
519 field = f->fmt.pix.field;
520 if (field == V4L2_FIELD_ANY)
521 field = V4L2_FIELD_NONE;
522 else if (V4L2_FIELD_NONE != field)
523 return -EINVAL;
524
525 /* V4L2 specification suggests the driver corrects the format struct
526 * if any of the dimensions is unsupported */
527 f->fmt.pix.field = field;
528
529 coda_get_max_dimensions(dev, codec, &max_w, &max_h);
530 v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w, W_ALIGN,
531 &f->fmt.pix.height, MIN_H, max_h, H_ALIGN,
532 S_ALIGN);
533
534 switch (f->fmt.pix.pixelformat) {
535 case V4L2_PIX_FMT_NV12:
536 case V4L2_PIX_FMT_YUV420:
537 case V4L2_PIX_FMT_YVU420:
538 /*
539 * Frame stride must be at least multiple of 8,
540 * but multiple of 16 for h.264 or JPEG 4:2:x
541 */
542 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
543 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
544 f->fmt.pix.height * 3 / 2;
545 break;
546 case V4L2_PIX_FMT_YUYV:
547 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16) * 2;
548 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
549 f->fmt.pix.height;
550 break;
551 case V4L2_PIX_FMT_YUV422P:
552 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
553 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
554 f->fmt.pix.height * 2;
555 break;
556 case V4L2_PIX_FMT_JPEG:
557 f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
558 /* fallthrough */
559 case V4L2_PIX_FMT_H264:
560 case V4L2_PIX_FMT_MPEG4:
561 case V4L2_PIX_FMT_MPEG2:
562 f->fmt.pix.bytesperline = 0;
563 f->fmt.pix.sizeimage = coda_estimate_sizeimage(ctx,
564 f->fmt.pix.sizeimage,
565 f->fmt.pix.width,
566 f->fmt.pix.height);
567 break;
568 default:
569 BUG();
570 }
571
572 return 0;
573 }
574
575 static int coda_try_fmt_vid_cap(struct file *file, void *priv,
576 struct v4l2_format *f)
577 {
578 struct coda_ctx *ctx = fh_to_ctx(priv);
579 const struct coda_q_data *q_data_src;
580 const struct coda_codec *codec;
581 struct vb2_queue *src_vq;
582 int ret;
583 bool use_vdoa;
584
585 ret = coda_try_pixelformat(ctx, f);
586 if (ret < 0)
587 return ret;
588
589 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
590
591 /*
592 * If the source format is already fixed, only allow the same output
593 * resolution
594 */
595 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
596 if (vb2_is_streaming(src_vq)) {
597 f->fmt.pix.width = q_data_src->width;
598 f->fmt.pix.height = q_data_src->height;
599 }
600
601 f->fmt.pix.colorspace = ctx->colorspace;
602 f->fmt.pix.xfer_func = ctx->xfer_func;
603 f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
604 f->fmt.pix.quantization = ctx->quantization;
605
606 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
607 codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
608 f->fmt.pix.pixelformat);
609 if (!codec)
610 return -EINVAL;
611
612 ret = coda_try_fmt(ctx, codec, f);
613 if (ret < 0)
614 return ret;
615
616 /* The h.264 decoder only returns complete 16x16 macroblocks */
617 if (codec && codec->src_fourcc == V4L2_PIX_FMT_H264) {
618 f->fmt.pix.height = round_up(f->fmt.pix.height, 16);
619 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
620 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
621 f->fmt.pix.height * 3 / 2;
622
623 ret = coda_try_fmt_vdoa(ctx, f, &use_vdoa);
624 if (ret < 0)
625 return ret;
626
627 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) {
628 if (!use_vdoa)
629 return -EINVAL;
630
631 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16) * 2;
632 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
633 f->fmt.pix.height;
634 }
635 }
636
637 return 0;
638 }
639
640 static void coda_set_default_colorspace(struct v4l2_pix_format *fmt)
641 {
642 enum v4l2_colorspace colorspace;
643
644 if (fmt->pixelformat == V4L2_PIX_FMT_JPEG)
645 colorspace = V4L2_COLORSPACE_JPEG;
646 else if (fmt->width <= 720 && fmt->height <= 576)
647 colorspace = V4L2_COLORSPACE_SMPTE170M;
648 else
649 colorspace = V4L2_COLORSPACE_REC709;
650
651 fmt->colorspace = colorspace;
652 fmt->xfer_func = V4L2_XFER_FUNC_DEFAULT;
653 fmt->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
654 fmt->quantization = V4L2_QUANTIZATION_DEFAULT;
655 }
656
657 static int coda_try_fmt_vid_out(struct file *file, void *priv,
658 struct v4l2_format *f)
659 {
660 struct coda_ctx *ctx = fh_to_ctx(priv);
661 struct coda_dev *dev = ctx->dev;
662 const struct coda_q_data *q_data_dst;
663 const struct coda_codec *codec;
664 int ret;
665
666 ret = coda_try_pixelformat(ctx, f);
667 if (ret < 0)
668 return ret;
669
670 if (f->fmt.pix.colorspace == V4L2_COLORSPACE_DEFAULT)
671 coda_set_default_colorspace(&f->fmt.pix);
672
673 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
674 codec = coda_find_codec(dev, f->fmt.pix.pixelformat, q_data_dst->fourcc);
675
676 return coda_try_fmt(ctx, codec, f);
677 }
678
679 static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f,
680 struct v4l2_rect *r)
681 {
682 struct coda_q_data *q_data;
683 struct vb2_queue *vq;
684
685 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
686 if (!vq)
687 return -EINVAL;
688
689 q_data = get_q_data(ctx, f->type);
690 if (!q_data)
691 return -EINVAL;
692
693 if (vb2_is_busy(vq)) {
694 v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__);
695 return -EBUSY;
696 }
697
698 q_data->fourcc = f->fmt.pix.pixelformat;
699 q_data->width = f->fmt.pix.width;
700 q_data->height = f->fmt.pix.height;
701 q_data->bytesperline = f->fmt.pix.bytesperline;
702 q_data->sizeimage = f->fmt.pix.sizeimage;
703 if (r) {
704 q_data->rect = *r;
705 } else {
706 q_data->rect.left = 0;
707 q_data->rect.top = 0;
708 q_data->rect.width = f->fmt.pix.width;
709 q_data->rect.height = f->fmt.pix.height;
710 }
711
712 switch (f->fmt.pix.pixelformat) {
713 case V4L2_PIX_FMT_YUYV:
714 ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP;
715 break;
716 case V4L2_PIX_FMT_NV12:
717 ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP;
718 if (!disable_tiling)
719 break;
720 /* else fall through */
721 case V4L2_PIX_FMT_YUV420:
722 case V4L2_PIX_FMT_YVU420:
723 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP;
724 break;
725 default:
726 break;
727 }
728
729 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP &&
730 !coda_try_fmt_vdoa(ctx, f, &ctx->use_vdoa) &&
731 ctx->use_vdoa)
732 vdoa_context_configure(ctx->vdoa, f->fmt.pix.width,
733 f->fmt.pix.height,
734 f->fmt.pix.pixelformat);
735 else
736 ctx->use_vdoa = false;
737
738 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
739 "Setting format for type %d, wxh: %dx%d, fmt: %4.4s %c\n",
740 f->type, q_data->width, q_data->height,
741 (char *)&q_data->fourcc,
742 (ctx->tiled_map_type == GDI_LINEAR_FRAME_MAP) ? 'L' : 'T');
743
744 return 0;
745 }
746
747 static int coda_s_fmt_vid_cap(struct file *file, void *priv,
748 struct v4l2_format *f)
749 {
750 struct coda_ctx *ctx = fh_to_ctx(priv);
751 struct coda_q_data *q_data_src;
752 struct v4l2_rect r;
753 int ret;
754
755 ret = coda_try_fmt_vid_cap(file, priv, f);
756 if (ret)
757 return ret;
758
759 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
760 r.left = 0;
761 r.top = 0;
762 r.width = q_data_src->width;
763 r.height = q_data_src->height;
764
765 return coda_s_fmt(ctx, f, &r);
766 }
767
768 static int coda_s_fmt_vid_out(struct file *file, void *priv,
769 struct v4l2_format *f)
770 {
771 struct coda_ctx *ctx = fh_to_ctx(priv);
772 struct coda_q_data *q_data_src;
773 struct v4l2_format f_cap;
774 struct v4l2_rect r;
775 int ret;
776
777 ret = coda_try_fmt_vid_out(file, priv, f);
778 if (ret)
779 return ret;
780
781 ret = coda_s_fmt(ctx, f, NULL);
782 if (ret)
783 return ret;
784
785 ctx->colorspace = f->fmt.pix.colorspace;
786 ctx->xfer_func = f->fmt.pix.xfer_func;
787 ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
788 ctx->quantization = f->fmt.pix.quantization;
789
790 memset(&f_cap, 0, sizeof(f_cap));
791 f_cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
792 coda_g_fmt(file, priv, &f_cap);
793 f_cap.fmt.pix.width = f->fmt.pix.width;
794 f_cap.fmt.pix.height = f->fmt.pix.height;
795
796 ret = coda_try_fmt_vid_cap(file, priv, &f_cap);
797 if (ret)
798 return ret;
799
800 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
801 r.left = 0;
802 r.top = 0;
803 r.width = q_data_src->width;
804 r.height = q_data_src->height;
805
806 return coda_s_fmt(ctx, &f_cap, &r);
807 }
808
809 static int coda_reqbufs(struct file *file, void *priv,
810 struct v4l2_requestbuffers *rb)
811 {
812 struct coda_ctx *ctx = fh_to_ctx(priv);
813 int ret;
814
815 ret = v4l2_m2m_reqbufs(file, ctx->fh.m2m_ctx, rb);
816 if (ret)
817 return ret;
818
819 /*
820 * Allow to allocate instance specific per-context buffers, such as
821 * bitstream ringbuffer, slice buffer, work buffer, etc. if needed.
822 */
823 if (rb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && ctx->ops->reqbufs)
824 return ctx->ops->reqbufs(ctx, rb);
825
826 return 0;
827 }
828
829 static int coda_qbuf(struct file *file, void *priv,
830 struct v4l2_buffer *buf)
831 {
832 struct coda_ctx *ctx = fh_to_ctx(priv);
833
834 return v4l2_m2m_qbuf(file, ctx->fh.m2m_ctx, buf);
835 }
836
837 static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx,
838 struct vb2_v4l2_buffer *buf)
839 {
840 return ((ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) &&
841 (buf->sequence == (ctx->qsequence - 1)));
842 }
843
844 void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
845 enum vb2_buffer_state state)
846 {
847 const struct v4l2_event eos_event = {
848 .type = V4L2_EVENT_EOS
849 };
850
851 if (coda_buf_is_end_of_stream(ctx, buf)) {
852 buf->flags |= V4L2_BUF_FLAG_LAST;
853
854 v4l2_event_queue_fh(&ctx->fh, &eos_event);
855 }
856
857 v4l2_m2m_buf_done(buf, state);
858 }
859
860 static int coda_g_selection(struct file *file, void *fh,
861 struct v4l2_selection *s)
862 {
863 struct coda_ctx *ctx = fh_to_ctx(fh);
864 struct coda_q_data *q_data;
865 struct v4l2_rect r, *rsel;
866
867 q_data = get_q_data(ctx, s->type);
868 if (!q_data)
869 return -EINVAL;
870
871 r.left = 0;
872 r.top = 0;
873 r.width = q_data->width;
874 r.height = q_data->height;
875 rsel = &q_data->rect;
876
877 switch (s->target) {
878 case V4L2_SEL_TGT_CROP_DEFAULT:
879 case V4L2_SEL_TGT_CROP_BOUNDS:
880 rsel = &r;
881 /* fallthrough */
882 case V4L2_SEL_TGT_CROP:
883 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
884 return -EINVAL;
885 break;
886 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
887 case V4L2_SEL_TGT_COMPOSE_PADDED:
888 rsel = &r;
889 /* fallthrough */
890 case V4L2_SEL_TGT_COMPOSE:
891 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
892 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
893 return -EINVAL;
894 break;
895 default:
896 return -EINVAL;
897 }
898
899 s->r = *rsel;
900
901 return 0;
902 }
903
904 static int coda_try_encoder_cmd(struct file *file, void *fh,
905 struct v4l2_encoder_cmd *ec)
906 {
907 if (ec->cmd != V4L2_ENC_CMD_STOP)
908 return -EINVAL;
909
910 if (ec->flags & V4L2_ENC_CMD_STOP_AT_GOP_END)
911 return -EINVAL;
912
913 return 0;
914 }
915
916 static int coda_encoder_cmd(struct file *file, void *fh,
917 struct v4l2_encoder_cmd *ec)
918 {
919 struct coda_ctx *ctx = fh_to_ctx(fh);
920 struct vb2_queue *dst_vq;
921 int ret;
922
923 ret = coda_try_encoder_cmd(file, fh, ec);
924 if (ret < 0)
925 return ret;
926
927 /* Ignore encoder stop command silently in decoder context */
928 if (ctx->inst_type != CODA_INST_ENCODER)
929 return 0;
930
931 /* Set the stream-end flag on this context */
932 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
933
934 /* If there is no buffer in flight, wake up */
935 if (ctx->qsequence == ctx->osequence) {
936 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
937 V4L2_BUF_TYPE_VIDEO_CAPTURE);
938 dst_vq->last_buffer_dequeued = true;
939 wake_up(&dst_vq->done_wq);
940 }
941
942 return 0;
943 }
944
945 static int coda_try_decoder_cmd(struct file *file, void *fh,
946 struct v4l2_decoder_cmd *dc)
947 {
948 if (dc->cmd != V4L2_DEC_CMD_STOP)
949 return -EINVAL;
950
951 if (dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK)
952 return -EINVAL;
953
954 if (!(dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY) && (dc->stop.pts != 0))
955 return -EINVAL;
956
957 return 0;
958 }
959
960 static int coda_decoder_cmd(struct file *file, void *fh,
961 struct v4l2_decoder_cmd *dc)
962 {
963 struct coda_ctx *ctx = fh_to_ctx(fh);
964 int ret;
965
966 ret = coda_try_decoder_cmd(file, fh, dc);
967 if (ret < 0)
968 return ret;
969
970 /* Ignore decoder stop command silently in encoder context */
971 if (ctx->inst_type != CODA_INST_DECODER)
972 return 0;
973
974 /* Set the stream-end flag on this context */
975 coda_bit_stream_end_flag(ctx);
976 ctx->hold = false;
977 v4l2_m2m_try_schedule(ctx->fh.m2m_ctx);
978
979 return 0;
980 }
981
982 static int coda_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
983 {
984 struct coda_ctx *ctx = fh_to_ctx(fh);
985 struct v4l2_fract *tpf;
986
987 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
988 return -EINVAL;
989
990 a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
991 tpf = &a->parm.output.timeperframe;
992 tpf->denominator = ctx->params.framerate & CODA_FRATE_RES_MASK;
993 tpf->numerator = 1 + (ctx->params.framerate >>
994 CODA_FRATE_DIV_OFFSET);
995
996 return 0;
997 }
998
999 /*
1000 * Approximate timeperframe v4l2_fract with values that can be written
1001 * into the 16-bit CODA_FRATE_DIV and CODA_FRATE_RES fields.
1002 */
1003 static void coda_approximate_timeperframe(struct v4l2_fract *timeperframe)
1004 {
1005 struct v4l2_fract s = *timeperframe;
1006 struct v4l2_fract f0;
1007 struct v4l2_fract f1 = { 1, 0 };
1008 struct v4l2_fract f2 = { 0, 1 };
1009 unsigned int i, div, s_denominator;
1010
1011 /* Lower bound is 1/65535 */
1012 if (s.numerator == 0 || s.denominator / s.numerator > 65535) {
1013 timeperframe->numerator = 1;
1014 timeperframe->denominator = 65535;
1015 return;
1016 }
1017
1018 /* Upper bound is 65536/1, map everything above to infinity */
1019 if (s.denominator == 0 || s.numerator / s.denominator > 65536) {
1020 timeperframe->numerator = 1;
1021 timeperframe->denominator = 0;
1022 return;
1023 }
1024
1025 /* Reduce fraction to lowest terms */
1026 div = gcd(s.numerator, s.denominator);
1027 if (div > 1) {
1028 s.numerator /= div;
1029 s.denominator /= div;
1030 }
1031
1032 if (s.numerator <= 65536 && s.denominator < 65536) {
1033 *timeperframe = s;
1034 return;
1035 }
1036
1037 /* Find successive convergents from continued fraction expansion */
1038 while (f2.numerator <= 65536 && f2.denominator < 65536) {
1039 f0 = f1;
1040 f1 = f2;
1041
1042 /* Stop when f2 exactly equals timeperframe */
1043 if (s.numerator == 0)
1044 break;
1045
1046 i = s.denominator / s.numerator;
1047
1048 f2.numerator = f0.numerator + i * f1.numerator;
1049 f2.denominator = f0.denominator + i * f2.denominator;
1050
1051 s_denominator = s.numerator;
1052 s.numerator = s.denominator % s.numerator;
1053 s.denominator = s_denominator;
1054 }
1055
1056 *timeperframe = f1;
1057 }
1058
1059 static uint32_t coda_timeperframe_to_frate(struct v4l2_fract *timeperframe)
1060 {
1061 return ((timeperframe->numerator - 1) << CODA_FRATE_DIV_OFFSET) |
1062 timeperframe->denominator;
1063 }
1064
1065 static int coda_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1066 {
1067 struct coda_ctx *ctx = fh_to_ctx(fh);
1068 struct v4l2_fract *tpf;
1069
1070 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1071 return -EINVAL;
1072
1073 tpf = &a->parm.output.timeperframe;
1074 coda_approximate_timeperframe(tpf);
1075 ctx->params.framerate = coda_timeperframe_to_frate(tpf);
1076
1077 return 0;
1078 }
1079
1080 static int coda_subscribe_event(struct v4l2_fh *fh,
1081 const struct v4l2_event_subscription *sub)
1082 {
1083 switch (sub->type) {
1084 case V4L2_EVENT_EOS:
1085 return v4l2_event_subscribe(fh, sub, 0, NULL);
1086 default:
1087 return v4l2_ctrl_subscribe_event(fh, sub);
1088 }
1089 }
1090
1091 static const struct v4l2_ioctl_ops coda_ioctl_ops = {
1092 .vidioc_querycap = coda_querycap,
1093
1094 .vidioc_enum_fmt_vid_cap = coda_enum_fmt,
1095 .vidioc_g_fmt_vid_cap = coda_g_fmt,
1096 .vidioc_try_fmt_vid_cap = coda_try_fmt_vid_cap,
1097 .vidioc_s_fmt_vid_cap = coda_s_fmt_vid_cap,
1098
1099 .vidioc_enum_fmt_vid_out = coda_enum_fmt,
1100 .vidioc_g_fmt_vid_out = coda_g_fmt,
1101 .vidioc_try_fmt_vid_out = coda_try_fmt_vid_out,
1102 .vidioc_s_fmt_vid_out = coda_s_fmt_vid_out,
1103
1104 .vidioc_reqbufs = coda_reqbufs,
1105 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
1106
1107 .vidioc_qbuf = coda_qbuf,
1108 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
1109 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
1110 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
1111 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
1112
1113 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
1114 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
1115
1116 .vidioc_g_selection = coda_g_selection,
1117
1118 .vidioc_try_encoder_cmd = coda_try_encoder_cmd,
1119 .vidioc_encoder_cmd = coda_encoder_cmd,
1120 .vidioc_try_decoder_cmd = coda_try_decoder_cmd,
1121 .vidioc_decoder_cmd = coda_decoder_cmd,
1122
1123 .vidioc_g_parm = coda_g_parm,
1124 .vidioc_s_parm = coda_s_parm,
1125
1126 .vidioc_subscribe_event = coda_subscribe_event,
1127 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1128 };
1129
1130 /*
1131 * Mem-to-mem operations.
1132 */
1133
1134 static void coda_device_run(void *m2m_priv)
1135 {
1136 struct coda_ctx *ctx = m2m_priv;
1137 struct coda_dev *dev = ctx->dev;
1138
1139 queue_work(dev->workqueue, &ctx->pic_run_work);
1140 }
1141
1142 static void coda_pic_run_work(struct work_struct *work)
1143 {
1144 struct coda_ctx *ctx = container_of(work, struct coda_ctx, pic_run_work);
1145 struct coda_dev *dev = ctx->dev;
1146 int ret;
1147
1148 mutex_lock(&ctx->buffer_mutex);
1149 mutex_lock(&dev->coda_mutex);
1150
1151 ret = ctx->ops->prepare_run(ctx);
1152 if (ret < 0 && ctx->inst_type == CODA_INST_DECODER) {
1153 mutex_unlock(&dev->coda_mutex);
1154 mutex_unlock(&ctx->buffer_mutex);
1155 /* job_finish scheduled by prepare_decode */
1156 return;
1157 }
1158
1159 if (!wait_for_completion_timeout(&ctx->completion,
1160 msecs_to_jiffies(1000))) {
1161 dev_err(&dev->plat_dev->dev, "CODA PIC_RUN timeout\n");
1162
1163 ctx->hold = true;
1164
1165 coda_hw_reset(ctx);
1166
1167 if (ctx->ops->error_run)
1168 ctx->ops->error_run(ctx);
1169 } else if (!ctx->aborting) {
1170 ctx->ops->finish_run(ctx);
1171 }
1172
1173 if ((ctx->aborting || (!ctx->streamon_cap && !ctx->streamon_out)) &&
1174 ctx->ops->seq_end_work)
1175 queue_work(dev->workqueue, &ctx->seq_end_work);
1176
1177 mutex_unlock(&dev->coda_mutex);
1178 mutex_unlock(&ctx->buffer_mutex);
1179
1180 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
1181 }
1182
1183 static int coda_job_ready(void *m2m_priv)
1184 {
1185 struct coda_ctx *ctx = m2m_priv;
1186 int src_bufs = v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx);
1187
1188 /*
1189 * For both 'P' and 'key' frame cases 1 picture
1190 * and 1 frame are needed. In the decoder case,
1191 * the compressed frame can be in the bitstream.
1192 */
1193 if (!src_bufs && ctx->inst_type != CODA_INST_DECODER) {
1194 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1195 "not ready: not enough video buffers.\n");
1196 return 0;
1197 }
1198
1199 if (!v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx)) {
1200 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1201 "not ready: not enough video capture buffers.\n");
1202 return 0;
1203 }
1204
1205 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1206 bool stream_end = ctx->bit_stream_param &
1207 CODA_BIT_STREAM_END_FLAG;
1208 int num_metas = ctx->num_metas;
1209 unsigned int count;
1210
1211 count = hweight32(ctx->frm_dis_flg);
1212 if (ctx->use_vdoa && count >= (ctx->num_internal_frames - 1)) {
1213 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1214 "%d: not ready: all internal buffers in use: %d/%d (0x%x)",
1215 ctx->idx, count, ctx->num_internal_frames,
1216 ctx->frm_dis_flg);
1217 return 0;
1218 }
1219
1220 if (ctx->hold && !src_bufs) {
1221 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1222 "%d: not ready: on hold for more buffers.\n",
1223 ctx->idx);
1224 return 0;
1225 }
1226
1227 if (!stream_end && (num_metas + src_bufs) < 2) {
1228 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1229 "%d: not ready: need 2 buffers available (%d, %d)\n",
1230 ctx->idx, num_metas, src_bufs);
1231 return 0;
1232 }
1233
1234
1235 if (!src_bufs && !stream_end &&
1236 (coda_get_bitstream_payload(ctx) < 512)) {
1237 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1238 "%d: not ready: not enough bitstream data (%d).\n",
1239 ctx->idx, coda_get_bitstream_payload(ctx));
1240 return 0;
1241 }
1242 }
1243
1244 if (ctx->aborting) {
1245 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1246 "not ready: aborting\n");
1247 return 0;
1248 }
1249
1250 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1251 "job ready\n");
1252
1253 return 1;
1254 }
1255
1256 static void coda_job_abort(void *priv)
1257 {
1258 struct coda_ctx *ctx = priv;
1259
1260 ctx->aborting = 1;
1261
1262 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1263 "Aborting task\n");
1264 }
1265
1266 static void coda_lock(void *m2m_priv)
1267 {
1268 struct coda_ctx *ctx = m2m_priv;
1269 struct coda_dev *pcdev = ctx->dev;
1270
1271 mutex_lock(&pcdev->dev_mutex);
1272 }
1273
1274 static void coda_unlock(void *m2m_priv)
1275 {
1276 struct coda_ctx *ctx = m2m_priv;
1277 struct coda_dev *pcdev = ctx->dev;
1278
1279 mutex_unlock(&pcdev->dev_mutex);
1280 }
1281
1282 static const struct v4l2_m2m_ops coda_m2m_ops = {
1283 .device_run = coda_device_run,
1284 .job_ready = coda_job_ready,
1285 .job_abort = coda_job_abort,
1286 .lock = coda_lock,
1287 .unlock = coda_unlock,
1288 };
1289
1290 static void set_default_params(struct coda_ctx *ctx)
1291 {
1292 unsigned int max_w, max_h, usize, csize;
1293
1294 ctx->codec = coda_find_codec(ctx->dev, ctx->cvd->src_formats[0],
1295 ctx->cvd->dst_formats[0]);
1296 max_w = min(ctx->codec->max_w, 1920U);
1297 max_h = min(ctx->codec->max_h, 1088U);
1298 usize = max_w * max_h * 3 / 2;
1299 csize = coda_estimate_sizeimage(ctx, usize, max_w, max_h);
1300
1301 ctx->params.codec_mode = ctx->codec->mode;
1302 if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_JPEG)
1303 ctx->colorspace = V4L2_COLORSPACE_JPEG;
1304 else
1305 ctx->colorspace = V4L2_COLORSPACE_REC709;
1306 ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
1307 ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
1308 ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
1309 ctx->params.framerate = 30;
1310
1311 /* Default formats for output and input queues */
1312 ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->cvd->src_formats[0];
1313 ctx->q_data[V4L2_M2M_DST].fourcc = ctx->cvd->dst_formats[0];
1314 ctx->q_data[V4L2_M2M_SRC].width = max_w;
1315 ctx->q_data[V4L2_M2M_SRC].height = max_h;
1316 ctx->q_data[V4L2_M2M_DST].width = max_w;
1317 ctx->q_data[V4L2_M2M_DST].height = max_h;
1318 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_YUV420) {
1319 ctx->q_data[V4L2_M2M_SRC].bytesperline = max_w;
1320 ctx->q_data[V4L2_M2M_SRC].sizeimage = usize;
1321 ctx->q_data[V4L2_M2M_DST].bytesperline = 0;
1322 ctx->q_data[V4L2_M2M_DST].sizeimage = csize;
1323 } else {
1324 ctx->q_data[V4L2_M2M_SRC].bytesperline = 0;
1325 ctx->q_data[V4L2_M2M_SRC].sizeimage = csize;
1326 ctx->q_data[V4L2_M2M_DST].bytesperline = max_w;
1327 ctx->q_data[V4L2_M2M_DST].sizeimage = usize;
1328 }
1329 ctx->q_data[V4L2_M2M_SRC].rect.width = max_w;
1330 ctx->q_data[V4L2_M2M_SRC].rect.height = max_h;
1331 ctx->q_data[V4L2_M2M_DST].rect.width = max_w;
1332 ctx->q_data[V4L2_M2M_DST].rect.height = max_h;
1333
1334 /*
1335 * Since the RBC2AXI logic only supports a single chroma plane,
1336 * macroblock tiling only works for to NV12 pixel format.
1337 */
1338 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP;
1339 }
1340
1341 /*
1342 * Queue operations
1343 */
1344 static int coda_queue_setup(struct vb2_queue *vq,
1345 unsigned int *nbuffers, unsigned int *nplanes,
1346 unsigned int sizes[], struct device *alloc_devs[])
1347 {
1348 struct coda_ctx *ctx = vb2_get_drv_priv(vq);
1349 struct coda_q_data *q_data;
1350 unsigned int size;
1351
1352 q_data = get_q_data(ctx, vq->type);
1353 size = q_data->sizeimage;
1354
1355 *nplanes = 1;
1356 sizes[0] = size;
1357
1358 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1359 "get %d buffer(s) of size %d each.\n", *nbuffers, size);
1360
1361 return 0;
1362 }
1363
1364 static int coda_buf_prepare(struct vb2_buffer *vb)
1365 {
1366 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1367 struct coda_q_data *q_data;
1368
1369 q_data = get_q_data(ctx, vb->vb2_queue->type);
1370
1371 if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
1372 v4l2_warn(&ctx->dev->v4l2_dev,
1373 "%s data will not fit into plane (%lu < %lu)\n",
1374 __func__, vb2_plane_size(vb, 0),
1375 (long)q_data->sizeimage);
1376 return -EINVAL;
1377 }
1378
1379 return 0;
1380 }
1381
1382 static void coda_buf_queue(struct vb2_buffer *vb)
1383 {
1384 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1385 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1386 struct vb2_queue *vq = vb->vb2_queue;
1387 struct coda_q_data *q_data;
1388
1389 q_data = get_q_data(ctx, vb->vb2_queue->type);
1390
1391 /*
1392 * In the decoder case, immediately try to copy the buffer into the
1393 * bitstream ringbuffer and mark it as ready to be dequeued.
1394 */
1395 if (ctx->bitstream.size && vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1396 /*
1397 * For backwards compatibility, queuing an empty buffer marks
1398 * the stream end
1399 */
1400 if (vb2_get_plane_payload(vb, 0) == 0)
1401 coda_bit_stream_end_flag(ctx);
1402
1403 if (q_data->fourcc == V4L2_PIX_FMT_H264) {
1404 /*
1405 * Unless already done, try to obtain profile_idc and
1406 * level_idc from the SPS header. This allows to decide
1407 * whether to enable reordering during sequence
1408 * initialization.
1409 */
1410 if (!ctx->params.h264_profile_idc)
1411 coda_sps_parse_profile(ctx, vb);
1412 }
1413
1414 mutex_lock(&ctx->bitstream_mutex);
1415 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
1416 if (vb2_is_streaming(vb->vb2_queue))
1417 /* This set buf->sequence = ctx->qsequence++ */
1418 coda_fill_bitstream(ctx, NULL);
1419 mutex_unlock(&ctx->bitstream_mutex);
1420 } else {
1421 if (ctx->inst_type == CODA_INST_ENCODER &&
1422 vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1423 vbuf->sequence = ctx->qsequence++;
1424 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
1425 }
1426 }
1427
1428 int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
1429 size_t size, const char *name, struct dentry *parent)
1430 {
1431 buf->vaddr = dma_alloc_coherent(&dev->plat_dev->dev, size, &buf->paddr,
1432 GFP_KERNEL);
1433 if (!buf->vaddr) {
1434 v4l2_err(&dev->v4l2_dev,
1435 "Failed to allocate %s buffer of size %zu\n",
1436 name, size);
1437 return -ENOMEM;
1438 }
1439
1440 buf->size = size;
1441
1442 if (name && parent) {
1443 buf->blob.data = buf->vaddr;
1444 buf->blob.size = size;
1445 buf->dentry = debugfs_create_blob(name, 0644, parent,
1446 &buf->blob);
1447 if (!buf->dentry)
1448 dev_warn(&dev->plat_dev->dev,
1449 "failed to create debugfs entry %s\n", name);
1450 }
1451
1452 return 0;
1453 }
1454
1455 void coda_free_aux_buf(struct coda_dev *dev,
1456 struct coda_aux_buf *buf)
1457 {
1458 if (buf->vaddr) {
1459 dma_free_coherent(&dev->plat_dev->dev, buf->size,
1460 buf->vaddr, buf->paddr);
1461 buf->vaddr = NULL;
1462 buf->size = 0;
1463 debugfs_remove(buf->dentry);
1464 buf->dentry = NULL;
1465 }
1466 }
1467
1468 static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
1469 {
1470 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1471 struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev;
1472 struct coda_q_data *q_data_src, *q_data_dst;
1473 struct v4l2_m2m_buffer *m2m_buf, *tmp;
1474 struct vb2_v4l2_buffer *buf;
1475 struct list_head list;
1476 int ret = 0;
1477
1478 if (count < 1)
1479 return -EINVAL;
1480
1481 INIT_LIST_HEAD(&list);
1482
1483 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1484 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1485 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1486 /* copy the buffers that were queued before streamon */
1487 mutex_lock(&ctx->bitstream_mutex);
1488 coda_fill_bitstream(ctx, &list);
1489 mutex_unlock(&ctx->bitstream_mutex);
1490
1491 if (coda_get_bitstream_payload(ctx) < 512) {
1492 ret = -EINVAL;
1493 goto err;
1494 }
1495 }
1496
1497 ctx->streamon_out = 1;
1498 } else {
1499 ctx->streamon_cap = 1;
1500 }
1501
1502 /* Don't start the coda unless both queues are on */
1503 if (!(ctx->streamon_out && ctx->streamon_cap))
1504 goto out;
1505
1506 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1507 if ((q_data_src->width != q_data_dst->width &&
1508 round_up(q_data_src->width, 16) != q_data_dst->width) ||
1509 (q_data_src->height != q_data_dst->height &&
1510 round_up(q_data_src->height, 16) != q_data_dst->height)) {
1511 v4l2_err(v4l2_dev, "can't convert %dx%d to %dx%d\n",
1512 q_data_src->width, q_data_src->height,
1513 q_data_dst->width, q_data_dst->height);
1514 ret = -EINVAL;
1515 goto err;
1516 }
1517
1518 /* Allow BIT decoder device_run with no new buffers queued */
1519 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
1520 v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true);
1521
1522 ctx->gopcounter = ctx->params.gop_size - 1;
1523
1524 ctx->codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
1525 q_data_dst->fourcc);
1526 if (!ctx->codec) {
1527 v4l2_err(v4l2_dev, "couldn't tell instance type.\n");
1528 ret = -EINVAL;
1529 goto err;
1530 }
1531
1532 if (q_data_dst->fourcc == V4L2_PIX_FMT_JPEG)
1533 ctx->params.gop_size = 1;
1534 ctx->gopcounter = ctx->params.gop_size - 1;
1535
1536 ret = ctx->ops->start_streaming(ctx);
1537 if (ctx->inst_type == CODA_INST_DECODER) {
1538 if (ret == -EAGAIN)
1539 goto out;
1540 }
1541 if (ret < 0)
1542 goto err;
1543
1544 out:
1545 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1546 list_for_each_entry_safe(m2m_buf, tmp, &list, list) {
1547 list_del(&m2m_buf->list);
1548 v4l2_m2m_buf_done(&m2m_buf->vb, VB2_BUF_STATE_DONE);
1549 }
1550 }
1551 return 0;
1552
1553 err:
1554 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1555 list_for_each_entry_safe(m2m_buf, tmp, &list, list) {
1556 list_del(&m2m_buf->list);
1557 v4l2_m2m_buf_done(&m2m_buf->vb, VB2_BUF_STATE_QUEUED);
1558 }
1559 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1560 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1561 } else {
1562 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1563 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1564 }
1565 return ret;
1566 }
1567
1568 static void coda_stop_streaming(struct vb2_queue *q)
1569 {
1570 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1571 struct coda_dev *dev = ctx->dev;
1572 struct vb2_v4l2_buffer *buf;
1573 unsigned long flags;
1574 bool stop;
1575
1576 stop = ctx->streamon_out && ctx->streamon_cap;
1577
1578 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1579 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1580 "%s: output\n", __func__);
1581 ctx->streamon_out = 0;
1582
1583 coda_bit_stream_end_flag(ctx);
1584
1585 ctx->qsequence = 0;
1586
1587 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1588 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1589 } else {
1590 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1591 "%s: capture\n", __func__);
1592 ctx->streamon_cap = 0;
1593
1594 ctx->osequence = 0;
1595 ctx->sequence_offset = 0;
1596
1597 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1598 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1599 }
1600
1601 if (stop) {
1602 struct coda_buffer_meta *meta;
1603
1604 if (ctx->ops->seq_end_work) {
1605 queue_work(dev->workqueue, &ctx->seq_end_work);
1606 flush_work(&ctx->seq_end_work);
1607 }
1608 spin_lock_irqsave(&ctx->buffer_meta_lock, flags);
1609 while (!list_empty(&ctx->buffer_meta_list)) {
1610 meta = list_first_entry(&ctx->buffer_meta_list,
1611 struct coda_buffer_meta, list);
1612 list_del(&meta->list);
1613 kfree(meta);
1614 }
1615 ctx->num_metas = 0;
1616 spin_unlock_irqrestore(&ctx->buffer_meta_lock, flags);
1617 kfifo_init(&ctx->bitstream_fifo,
1618 ctx->bitstream.vaddr, ctx->bitstream.size);
1619 ctx->runcounter = 0;
1620 ctx->aborting = 0;
1621 }
1622
1623 if (!ctx->streamon_out && !ctx->streamon_cap)
1624 ctx->bit_stream_param &= ~CODA_BIT_STREAM_END_FLAG;
1625 }
1626
1627 static const struct vb2_ops coda_qops = {
1628 .queue_setup = coda_queue_setup,
1629 .buf_prepare = coda_buf_prepare,
1630 .buf_queue = coda_buf_queue,
1631 .start_streaming = coda_start_streaming,
1632 .stop_streaming = coda_stop_streaming,
1633 .wait_prepare = vb2_ops_wait_prepare,
1634 .wait_finish = vb2_ops_wait_finish,
1635 };
1636
1637 static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
1638 {
1639 struct coda_ctx *ctx =
1640 container_of(ctrl->handler, struct coda_ctx, ctrls);
1641
1642 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1643 "s_ctrl: id = %d, val = %d\n", ctrl->id, ctrl->val);
1644
1645 switch (ctrl->id) {
1646 case V4L2_CID_HFLIP:
1647 if (ctrl->val)
1648 ctx->params.rot_mode |= CODA_MIR_HOR;
1649 else
1650 ctx->params.rot_mode &= ~CODA_MIR_HOR;
1651 break;
1652 case V4L2_CID_VFLIP:
1653 if (ctrl->val)
1654 ctx->params.rot_mode |= CODA_MIR_VER;
1655 else
1656 ctx->params.rot_mode &= ~CODA_MIR_VER;
1657 break;
1658 case V4L2_CID_MPEG_VIDEO_BITRATE:
1659 ctx->params.bitrate = ctrl->val / 1000;
1660 break;
1661 case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
1662 ctx->params.gop_size = ctrl->val;
1663 break;
1664 case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
1665 ctx->params.h264_intra_qp = ctrl->val;
1666 break;
1667 case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
1668 ctx->params.h264_inter_qp = ctrl->val;
1669 break;
1670 case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
1671 ctx->params.h264_min_qp = ctrl->val;
1672 break;
1673 case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
1674 ctx->params.h264_max_qp = ctrl->val;
1675 break;
1676 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA:
1677 ctx->params.h264_deblk_alpha = ctrl->val;
1678 break;
1679 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA:
1680 ctx->params.h264_deblk_beta = ctrl->val;
1681 break;
1682 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
1683 ctx->params.h264_deblk_enabled = (ctrl->val ==
1684 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
1685 break;
1686 case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
1687 ctx->params.mpeg4_intra_qp = ctrl->val;
1688 break;
1689 case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
1690 ctx->params.mpeg4_inter_qp = ctrl->val;
1691 break;
1692 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
1693 ctx->params.slice_mode = ctrl->val;
1694 break;
1695 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
1696 ctx->params.slice_max_mb = ctrl->val;
1697 break;
1698 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
1699 ctx->params.slice_max_bits = ctrl->val * 8;
1700 break;
1701 case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
1702 break;
1703 case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB:
1704 ctx->params.intra_refresh = ctrl->val;
1705 break;
1706 case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
1707 ctx->params.force_ipicture = true;
1708 break;
1709 case V4L2_CID_JPEG_COMPRESSION_QUALITY:
1710 coda_set_jpeg_compression_quality(ctx, ctrl->val);
1711 break;
1712 case V4L2_CID_JPEG_RESTART_INTERVAL:
1713 ctx->params.jpeg_restart_interval = ctrl->val;
1714 break;
1715 case V4L2_CID_MPEG_VIDEO_VBV_DELAY:
1716 ctx->params.vbv_delay = ctrl->val;
1717 break;
1718 case V4L2_CID_MPEG_VIDEO_VBV_SIZE:
1719 ctx->params.vbv_size = min(ctrl->val * 8192, 0x7fffffff);
1720 break;
1721 default:
1722 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1723 "Invalid control, id=%d, val=%d\n",
1724 ctrl->id, ctrl->val);
1725 return -EINVAL;
1726 }
1727
1728 return 0;
1729 }
1730
1731 static const struct v4l2_ctrl_ops coda_ctrl_ops = {
1732 .s_ctrl = coda_s_ctrl,
1733 };
1734
1735 static void coda_encode_ctrls(struct coda_ctx *ctx)
1736 {
1737 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1738 V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1000, 0);
1739 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1740 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 60, 1, 16);
1741 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1742 V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 0, 51, 1, 25);
1743 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1744 V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 0, 51, 1, 25);
1745 if (ctx->dev->devtype->product != CODA_960) {
1746 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1747 V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 51, 1, 12);
1748 }
1749 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1750 V4L2_CID_MPEG_VIDEO_H264_MAX_QP, 0, 51, 1, 51);
1751 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1752 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA, 0, 15, 1, 0);
1753 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1754 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA, 0, 15, 1, 0);
1755 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1756 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
1757 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED, 0x0,
1758 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
1759 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1760 V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
1761 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1762 V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
1763 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1764 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
1765 V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES, 0x0,
1766 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
1767 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1768 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
1769 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1770 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1,
1771 500);
1772 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1773 V4L2_CID_MPEG_VIDEO_HEADER_MODE,
1774 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
1775 (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE),
1776 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
1777 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1778 V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB, 0,
1779 1920 * 1088 / 256, 1, 0);
1780 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1781 V4L2_CID_MPEG_VIDEO_VBV_DELAY, 0, 0x7fff, 1, 0);
1782 /*
1783 * The maximum VBV size value is 0x7fffffff bits,
1784 * one bit less than 262144 KiB
1785 */
1786 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1787 V4L2_CID_MPEG_VIDEO_VBV_SIZE, 0, 262144, 1, 0);
1788 }
1789
1790 static void coda_jpeg_encode_ctrls(struct coda_ctx *ctx)
1791 {
1792 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1793 V4L2_CID_JPEG_COMPRESSION_QUALITY, 5, 100, 1, 50);
1794 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1795 V4L2_CID_JPEG_RESTART_INTERVAL, 0, 100, 1, 0);
1796 }
1797
1798 static int coda_ctrls_setup(struct coda_ctx *ctx)
1799 {
1800 v4l2_ctrl_handler_init(&ctx->ctrls, 2);
1801
1802 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1803 V4L2_CID_HFLIP, 0, 1, 1, 0);
1804 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1805 V4L2_CID_VFLIP, 0, 1, 1, 0);
1806 if (ctx->inst_type == CODA_INST_ENCODER) {
1807 if (ctx->cvd->dst_formats[0] == V4L2_PIX_FMT_JPEG)
1808 coda_jpeg_encode_ctrls(ctx);
1809 else
1810 coda_encode_ctrls(ctx);
1811 }
1812
1813 if (ctx->ctrls.error) {
1814 v4l2_err(&ctx->dev->v4l2_dev,
1815 "control initialization error (%d)",
1816 ctx->ctrls.error);
1817 return -EINVAL;
1818 }
1819
1820 return v4l2_ctrl_handler_setup(&ctx->ctrls);
1821 }
1822
1823 static int coda_queue_init(struct coda_ctx *ctx, struct vb2_queue *vq)
1824 {
1825 vq->drv_priv = ctx;
1826 vq->ops = &coda_qops;
1827 vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
1828 vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1829 vq->lock = &ctx->dev->dev_mutex;
1830 /* One way to indicate end-of-stream for coda is to set the
1831 * bytesused == 0. However by default videobuf2 handles bytesused
1832 * equal to 0 as a special case and changes its value to the size
1833 * of the buffer. Set the allow_zero_bytesused flag, so
1834 * that videobuf2 will keep the value of bytesused intact.
1835 */
1836 vq->allow_zero_bytesused = 1;
1837 vq->dev = &ctx->dev->plat_dev->dev;
1838
1839 return vb2_queue_init(vq);
1840 }
1841
1842 int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
1843 struct vb2_queue *dst_vq)
1844 {
1845 int ret;
1846
1847 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1848 src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
1849 src_vq->mem_ops = &vb2_dma_contig_memops;
1850
1851 ret = coda_queue_init(priv, src_vq);
1852 if (ret)
1853 return ret;
1854
1855 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1856 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
1857 dst_vq->mem_ops = &vb2_dma_contig_memops;
1858
1859 return coda_queue_init(priv, dst_vq);
1860 }
1861
1862 int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
1863 struct vb2_queue *dst_vq)
1864 {
1865 int ret;
1866
1867 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1868 src_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
1869 src_vq->mem_ops = &vb2_vmalloc_memops;
1870
1871 ret = coda_queue_init(priv, src_vq);
1872 if (ret)
1873 return ret;
1874
1875 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1876 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
1877 dst_vq->mem_ops = &vb2_dma_contig_memops;
1878
1879 return coda_queue_init(priv, dst_vq);
1880 }
1881
1882 static int coda_next_free_instance(struct coda_dev *dev)
1883 {
1884 int idx = ffz(dev->instance_mask);
1885
1886 if ((idx < 0) ||
1887 (dev->devtype->product == CODA_DX6 && idx > CODADX6_MAX_INSTANCES))
1888 return -EBUSY;
1889
1890 return idx;
1891 }
1892
1893 /*
1894 * File operations
1895 */
1896
1897 static int coda_open(struct file *file)
1898 {
1899 struct video_device *vdev = video_devdata(file);
1900 struct coda_dev *dev = video_get_drvdata(vdev);
1901 struct coda_ctx *ctx = NULL;
1902 char *name;
1903 int ret;
1904 int idx;
1905
1906 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
1907 if (!ctx)
1908 return -ENOMEM;
1909
1910 idx = coda_next_free_instance(dev);
1911 if (idx < 0) {
1912 ret = idx;
1913 goto err_coda_max;
1914 }
1915 set_bit(idx, &dev->instance_mask);
1916
1917 name = kasprintf(GFP_KERNEL, "context%d", idx);
1918 if (!name) {
1919 ret = -ENOMEM;
1920 goto err_coda_name_init;
1921 }
1922
1923 ctx->debugfs_entry = debugfs_create_dir(name, dev->debugfs_root);
1924 kfree(name);
1925
1926 ctx->cvd = to_coda_video_device(vdev);
1927 ctx->inst_type = ctx->cvd->type;
1928 ctx->ops = ctx->cvd->ops;
1929 ctx->use_bit = !ctx->cvd->direct;
1930 init_completion(&ctx->completion);
1931 INIT_WORK(&ctx->pic_run_work, coda_pic_run_work);
1932 if (ctx->ops->seq_end_work)
1933 INIT_WORK(&ctx->seq_end_work, ctx->ops->seq_end_work);
1934 v4l2_fh_init(&ctx->fh, video_devdata(file));
1935 file->private_data = &ctx->fh;
1936 v4l2_fh_add(&ctx->fh);
1937 ctx->dev = dev;
1938 ctx->idx = idx;
1939 switch (dev->devtype->product) {
1940 case CODA_960:
1941 if (enable_bwb)
1942 ctx->frame_mem_ctrl = CODA9_FRAME_ENABLE_BWB;
1943 /* fallthrough */
1944 case CODA_7541:
1945 ctx->reg_idx = 0;
1946 break;
1947 default:
1948 ctx->reg_idx = idx;
1949 }
1950 if (ctx->dev->vdoa && !disable_vdoa) {
1951 ctx->vdoa = vdoa_context_create(dev->vdoa);
1952 if (!ctx->vdoa)
1953 v4l2_warn(&dev->v4l2_dev,
1954 "Failed to create vdoa context: not using vdoa");
1955 }
1956 ctx->use_vdoa = false;
1957
1958 /* Power up and upload firmware if necessary */
1959 ret = pm_runtime_get_sync(&dev->plat_dev->dev);
1960 if (ret < 0) {
1961 v4l2_err(&dev->v4l2_dev, "failed to power up: %d\n", ret);
1962 goto err_pm_get;
1963 }
1964
1965 ret = clk_prepare_enable(dev->clk_per);
1966 if (ret)
1967 goto err_clk_per;
1968
1969 ret = clk_prepare_enable(dev->clk_ahb);
1970 if (ret)
1971 goto err_clk_ahb;
1972
1973 set_default_params(ctx);
1974 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
1975 ctx->ops->queue_init);
1976 if (IS_ERR(ctx->fh.m2m_ctx)) {
1977 ret = PTR_ERR(ctx->fh.m2m_ctx);
1978
1979 v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
1980 __func__, ret);
1981 goto err_ctx_init;
1982 }
1983
1984 ret = coda_ctrls_setup(ctx);
1985 if (ret) {
1986 v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
1987 goto err_ctrls_setup;
1988 }
1989
1990 ctx->fh.ctrl_handler = &ctx->ctrls;
1991
1992 mutex_init(&ctx->bitstream_mutex);
1993 mutex_init(&ctx->buffer_mutex);
1994 INIT_LIST_HEAD(&ctx->buffer_meta_list);
1995 spin_lock_init(&ctx->buffer_meta_lock);
1996
1997 coda_lock(ctx);
1998 list_add(&ctx->list, &dev->instances);
1999 coda_unlock(ctx);
2000
2001 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Created instance %d (%p)\n",
2002 ctx->idx, ctx);
2003
2004 return 0;
2005
2006 err_ctrls_setup:
2007 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
2008 err_ctx_init:
2009 clk_disable_unprepare(dev->clk_ahb);
2010 err_clk_ahb:
2011 clk_disable_unprepare(dev->clk_per);
2012 err_clk_per:
2013 pm_runtime_put_sync(&dev->plat_dev->dev);
2014 err_pm_get:
2015 v4l2_fh_del(&ctx->fh);
2016 v4l2_fh_exit(&ctx->fh);
2017 clear_bit(ctx->idx, &dev->instance_mask);
2018 err_coda_name_init:
2019 err_coda_max:
2020 kfree(ctx);
2021 return ret;
2022 }
2023
2024 static int coda_release(struct file *file)
2025 {
2026 struct coda_dev *dev = video_drvdata(file);
2027 struct coda_ctx *ctx = fh_to_ctx(file->private_data);
2028
2029 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Releasing instance %p\n",
2030 ctx);
2031
2032 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
2033 coda_bit_stream_end_flag(ctx);
2034
2035 /* If this instance is running, call .job_abort and wait for it to end */
2036 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
2037
2038 if (ctx->vdoa)
2039 vdoa_context_destroy(ctx->vdoa);
2040
2041 /* In case the instance was not running, we still need to call SEQ_END */
2042 if (ctx->ops->seq_end_work) {
2043 queue_work(dev->workqueue, &ctx->seq_end_work);
2044 flush_work(&ctx->seq_end_work);
2045 }
2046
2047 coda_lock(ctx);
2048 list_del(&ctx->list);
2049 coda_unlock(ctx);
2050
2051 if (ctx->dev->devtype->product == CODA_DX6)
2052 coda_free_aux_buf(dev, &ctx->workbuf);
2053
2054 v4l2_ctrl_handler_free(&ctx->ctrls);
2055 clk_disable_unprepare(dev->clk_ahb);
2056 clk_disable_unprepare(dev->clk_per);
2057 pm_runtime_put_sync(&dev->plat_dev->dev);
2058 v4l2_fh_del(&ctx->fh);
2059 v4l2_fh_exit(&ctx->fh);
2060 clear_bit(ctx->idx, &dev->instance_mask);
2061 if (ctx->ops->release)
2062 ctx->ops->release(ctx);
2063 debugfs_remove_recursive(ctx->debugfs_entry);
2064 kfree(ctx);
2065
2066 return 0;
2067 }
2068
2069 static const struct v4l2_file_operations coda_fops = {
2070 .owner = THIS_MODULE,
2071 .open = coda_open,
2072 .release = coda_release,
2073 .poll = v4l2_m2m_fop_poll,
2074 .unlocked_ioctl = video_ioctl2,
2075 .mmap = v4l2_m2m_fop_mmap,
2076 };
2077
2078 static int coda_hw_init(struct coda_dev *dev)
2079 {
2080 u32 data;
2081 u16 *p;
2082 int i, ret;
2083
2084 ret = clk_prepare_enable(dev->clk_per);
2085 if (ret)
2086 goto err_clk_per;
2087
2088 ret = clk_prepare_enable(dev->clk_ahb);
2089 if (ret)
2090 goto err_clk_ahb;
2091
2092 reset_control_reset(dev->rstc);
2093
2094 /*
2095 * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
2096 * The 16-bit chars in the code buffer are in memory access
2097 * order, re-sort them to CODA order for register download.
2098 * Data in this SRAM survives a reboot.
2099 */
2100 p = (u16 *)dev->codebuf.vaddr;
2101 if (dev->devtype->product == CODA_DX6) {
2102 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2103 data = CODA_DOWN_ADDRESS_SET(i) |
2104 CODA_DOWN_DATA_SET(p[i ^ 1]);
2105 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2106 }
2107 } else {
2108 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2109 data = CODA_DOWN_ADDRESS_SET(i) |
2110 CODA_DOWN_DATA_SET(p[round_down(i, 4) +
2111 3 - (i % 4)]);
2112 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2113 }
2114 }
2115
2116 /* Clear registers */
2117 for (i = 0; i < 64; i++)
2118 coda_write(dev, 0, CODA_REG_BIT_CODE_BUF_ADDR + i * 4);
2119
2120 /* Tell the BIT where to find everything it needs */
2121 if (dev->devtype->product == CODA_960 ||
2122 dev->devtype->product == CODA_7541) {
2123 coda_write(dev, dev->tempbuf.paddr,
2124 CODA_REG_BIT_TEMP_BUF_ADDR);
2125 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
2126 } else {
2127 coda_write(dev, dev->workbuf.paddr,
2128 CODA_REG_BIT_WORK_BUF_ADDR);
2129 }
2130 coda_write(dev, dev->codebuf.paddr,
2131 CODA_REG_BIT_CODE_BUF_ADDR);
2132 coda_write(dev, 0, CODA_REG_BIT_CODE_RUN);
2133
2134 /* Set default values */
2135 switch (dev->devtype->product) {
2136 case CODA_DX6:
2137 coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH,
2138 CODA_REG_BIT_STREAM_CTRL);
2139 break;
2140 default:
2141 coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH,
2142 CODA_REG_BIT_STREAM_CTRL);
2143 }
2144 if (dev->devtype->product == CODA_960)
2145 coda_write(dev, 1 << 12, CODA_REG_BIT_FRAME_MEM_CTRL);
2146 else
2147 coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL);
2148
2149 if (dev->devtype->product != CODA_DX6)
2150 coda_write(dev, 0, CODA7_REG_BIT_AXI_SRAM_USE);
2151
2152 coda_write(dev, CODA_INT_INTERRUPT_ENABLE,
2153 CODA_REG_BIT_INT_ENABLE);
2154
2155 /* Reset VPU and start processor */
2156 data = coda_read(dev, CODA_REG_BIT_CODE_RESET);
2157 data |= CODA_REG_RESET_ENABLE;
2158 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2159 udelay(10);
2160 data &= ~CODA_REG_RESET_ENABLE;
2161 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2162 coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
2163
2164 clk_disable_unprepare(dev->clk_ahb);
2165 clk_disable_unprepare(dev->clk_per);
2166
2167 return 0;
2168
2169 err_clk_ahb:
2170 clk_disable_unprepare(dev->clk_per);
2171 err_clk_per:
2172 return ret;
2173 }
2174
2175 static int coda_register_device(struct coda_dev *dev, int i)
2176 {
2177 struct video_device *vfd = &dev->vfd[i];
2178
2179 if (i >= dev->devtype->num_vdevs)
2180 return -EINVAL;
2181
2182 strlcpy(vfd->name, dev->devtype->vdevs[i]->name, sizeof(vfd->name));
2183 vfd->fops = &coda_fops;
2184 vfd->ioctl_ops = &coda_ioctl_ops;
2185 vfd->release = video_device_release_empty,
2186 vfd->lock = &dev->dev_mutex;
2187 vfd->v4l2_dev = &dev->v4l2_dev;
2188 vfd->vfl_dir = VFL_DIR_M2M;
2189 video_set_drvdata(vfd, dev);
2190
2191 /* Not applicable, use the selection API instead */
2192 v4l2_disable_ioctl(vfd, VIDIOC_CROPCAP);
2193 v4l2_disable_ioctl(vfd, VIDIOC_G_CROP);
2194 v4l2_disable_ioctl(vfd, VIDIOC_S_CROP);
2195
2196 return video_register_device(vfd, VFL_TYPE_GRABBER, 0);
2197 }
2198
2199 static void coda_copy_firmware(struct coda_dev *dev, const u8 * const buf,
2200 size_t size)
2201 {
2202 u32 *src = (u32 *)buf;
2203
2204 /* Check if the firmware has a 16-byte Freescale header, skip it */
2205 if (buf[0] == 'M' && buf[1] == 'X')
2206 src += 4;
2207 /*
2208 * Check whether the firmware is in native order or pre-reordered for
2209 * memory access. The first instruction opcode always is 0xe40e.
2210 */
2211 if (__le16_to_cpup((__le16 *)src) == 0xe40e) {
2212 u32 *dst = dev->codebuf.vaddr;
2213 int i;
2214
2215 /* Firmware in native order, reorder while copying */
2216 if (dev->devtype->product == CODA_DX6) {
2217 for (i = 0; i < (size - 16) / 4; i++)
2218 dst[i] = (src[i] << 16) | (src[i] >> 16);
2219 } else {
2220 for (i = 0; i < (size - 16) / 4; i += 2) {
2221 dst[i] = (src[i + 1] << 16) | (src[i + 1] >> 16);
2222 dst[i + 1] = (src[i] << 16) | (src[i] >> 16);
2223 }
2224 }
2225 } else {
2226 /* Copy the already reordered firmware image */
2227 memcpy(dev->codebuf.vaddr, src, size);
2228 }
2229 }
2230
2231 static void coda_fw_callback(const struct firmware *fw, void *context);
2232
2233 static int coda_firmware_request(struct coda_dev *dev)
2234 {
2235 char *fw;
2236
2237 if (dev->firmware >= ARRAY_SIZE(dev->devtype->firmware))
2238 return -EINVAL;
2239
2240 fw = dev->devtype->firmware[dev->firmware];
2241
2242 dev_dbg(&dev->plat_dev->dev, "requesting firmware '%s' for %s\n", fw,
2243 coda_product_name(dev->devtype->product));
2244
2245 return request_firmware_nowait(THIS_MODULE, true, fw,
2246 &dev->plat_dev->dev, GFP_KERNEL, dev,
2247 coda_fw_callback);
2248 }
2249
2250 static void coda_fw_callback(const struct firmware *fw, void *context)
2251 {
2252 struct coda_dev *dev = context;
2253 struct platform_device *pdev = dev->plat_dev;
2254 int i, ret;
2255
2256 if (!fw) {
2257 dev->firmware++;
2258 ret = coda_firmware_request(dev);
2259 if (ret < 0) {
2260 v4l2_err(&dev->v4l2_dev, "firmware request failed\n");
2261 goto put_pm;
2262 }
2263 return;
2264 }
2265 if (dev->firmware > 0) {
2266 /*
2267 * Since we can't suppress warnings for failed asynchronous
2268 * firmware requests, report that the fallback firmware was
2269 * found.
2270 */
2271 dev_info(&pdev->dev, "Using fallback firmware %s\n",
2272 dev->devtype->firmware[dev->firmware]);
2273 }
2274
2275 /* allocate auxiliary per-device code buffer for the BIT processor */
2276 ret = coda_alloc_aux_buf(dev, &dev->codebuf, fw->size, "codebuf",
2277 dev->debugfs_root);
2278 if (ret < 0)
2279 goto put_pm;
2280
2281 coda_copy_firmware(dev, fw->data, fw->size);
2282 release_firmware(fw);
2283
2284 ret = coda_hw_init(dev);
2285 if (ret < 0) {
2286 v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
2287 goto put_pm;
2288 }
2289
2290 ret = coda_check_firmware(dev);
2291 if (ret < 0)
2292 goto put_pm;
2293
2294 dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops);
2295 if (IS_ERR(dev->m2m_dev)) {
2296 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
2297 goto put_pm;
2298 }
2299
2300 for (i = 0; i < dev->devtype->num_vdevs; i++) {
2301 ret = coda_register_device(dev, i);
2302 if (ret) {
2303 v4l2_err(&dev->v4l2_dev,
2304 "Failed to register %s video device: %d\n",
2305 dev->devtype->vdevs[i]->name, ret);
2306 goto rel_vfd;
2307 }
2308 }
2309
2310 v4l2_info(&dev->v4l2_dev, "codec registered as /dev/video[%d-%d]\n",
2311 dev->vfd[0].num, dev->vfd[i - 1].num);
2312
2313 pm_runtime_put_sync(&pdev->dev);
2314 return;
2315
2316 rel_vfd:
2317 while (--i >= 0)
2318 video_unregister_device(&dev->vfd[i]);
2319 v4l2_m2m_release(dev->m2m_dev);
2320 put_pm:
2321 pm_runtime_put_sync(&pdev->dev);
2322 }
2323
2324 enum coda_platform {
2325 CODA_IMX27,
2326 CODA_IMX53,
2327 CODA_IMX6Q,
2328 CODA_IMX6DL,
2329 };
2330
2331 static const struct coda_devtype coda_devdata[] = {
2332 [CODA_IMX27] = {
2333 .firmware = {
2334 "vpu_fw_imx27_TO2.bin",
2335 "vpu/vpu_fw_imx27_TO2.bin",
2336 "v4l-codadx6-imx27.bin"
2337 },
2338 .product = CODA_DX6,
2339 .codecs = codadx6_codecs,
2340 .num_codecs = ARRAY_SIZE(codadx6_codecs),
2341 .vdevs = codadx6_video_devices,
2342 .num_vdevs = ARRAY_SIZE(codadx6_video_devices),
2343 .workbuf_size = 288 * 1024 + FMO_SLICE_SAVE_BUF_SIZE * 8 * 1024,
2344 .iram_size = 0xb000,
2345 },
2346 [CODA_IMX53] = {
2347 .firmware = {
2348 "vpu_fw_imx53.bin",
2349 "vpu/vpu_fw_imx53.bin",
2350 "v4l-coda7541-imx53.bin"
2351 },
2352 .product = CODA_7541,
2353 .codecs = coda7_codecs,
2354 .num_codecs = ARRAY_SIZE(coda7_codecs),
2355 .vdevs = coda7_video_devices,
2356 .num_vdevs = ARRAY_SIZE(coda7_video_devices),
2357 .workbuf_size = 128 * 1024,
2358 .tempbuf_size = 304 * 1024,
2359 .iram_size = 0x14000,
2360 },
2361 [CODA_IMX6Q] = {
2362 .firmware = {
2363 "vpu_fw_imx6q.bin",
2364 "vpu/vpu_fw_imx6q.bin",
2365 "v4l-coda960-imx6q.bin"
2366 },
2367 .product = CODA_960,
2368 .codecs = coda9_codecs,
2369 .num_codecs = ARRAY_SIZE(coda9_codecs),
2370 .vdevs = coda9_video_devices,
2371 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
2372 .workbuf_size = 80 * 1024,
2373 .tempbuf_size = 204 * 1024,
2374 .iram_size = 0x21000,
2375 },
2376 [CODA_IMX6DL] = {
2377 .firmware = {
2378 "vpu_fw_imx6d.bin",
2379 "vpu/vpu_fw_imx6d.bin",
2380 "v4l-coda960-imx6dl.bin"
2381 },
2382 .product = CODA_960,
2383 .codecs = coda9_codecs,
2384 .num_codecs = ARRAY_SIZE(coda9_codecs),
2385 .vdevs = coda9_video_devices,
2386 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
2387 .workbuf_size = 80 * 1024,
2388 .tempbuf_size = 204 * 1024,
2389 .iram_size = 0x20000,
2390 },
2391 };
2392
2393 static struct platform_device_id coda_platform_ids[] = {
2394 { .name = "coda-imx27", .driver_data = CODA_IMX27 },
2395 { /* sentinel */ }
2396 };
2397 MODULE_DEVICE_TABLE(platform, coda_platform_ids);
2398
2399 #ifdef CONFIG_OF
2400 static const struct of_device_id coda_dt_ids[] = {
2401 { .compatible = "fsl,imx27-vpu", .data = &coda_devdata[CODA_IMX27] },
2402 { .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] },
2403 { .compatible = "fsl,imx6q-vpu", .data = &coda_devdata[CODA_IMX6Q] },
2404 { .compatible = "fsl,imx6dl-vpu", .data = &coda_devdata[CODA_IMX6DL] },
2405 { /* sentinel */ }
2406 };
2407 MODULE_DEVICE_TABLE(of, coda_dt_ids);
2408 #endif
2409
2410 static int coda_probe(struct platform_device *pdev)
2411 {
2412 const struct of_device_id *of_id =
2413 of_match_device(of_match_ptr(coda_dt_ids), &pdev->dev);
2414 const struct platform_device_id *pdev_id;
2415 struct coda_platform_data *pdata = pdev->dev.platform_data;
2416 struct device_node *np = pdev->dev.of_node;
2417 struct gen_pool *pool;
2418 struct coda_dev *dev;
2419 struct resource *res;
2420 int ret, irq;
2421
2422 dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
2423 if (!dev)
2424 return -ENOMEM;
2425
2426 pdev_id = of_id ? of_id->data : platform_get_device_id(pdev);
2427
2428 if (of_id)
2429 dev->devtype = of_id->data;
2430 else if (pdev_id)
2431 dev->devtype = &coda_devdata[pdev_id->driver_data];
2432 else
2433 return -EINVAL;
2434
2435 spin_lock_init(&dev->irqlock);
2436 INIT_LIST_HEAD(&dev->instances);
2437
2438 dev->plat_dev = pdev;
2439 dev->clk_per = devm_clk_get(&pdev->dev, "per");
2440 if (IS_ERR(dev->clk_per)) {
2441 dev_err(&pdev->dev, "Could not get per clock\n");
2442 return PTR_ERR(dev->clk_per);
2443 }
2444
2445 dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
2446 if (IS_ERR(dev->clk_ahb)) {
2447 dev_err(&pdev->dev, "Could not get ahb clock\n");
2448 return PTR_ERR(dev->clk_ahb);
2449 }
2450
2451 /* Get memory for physical registers */
2452 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2453 dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
2454 if (IS_ERR(dev->regs_base))
2455 return PTR_ERR(dev->regs_base);
2456
2457 /* IRQ */
2458 irq = platform_get_irq_byname(pdev, "bit");
2459 if (irq < 0)
2460 irq = platform_get_irq(pdev, 0);
2461 if (irq < 0) {
2462 dev_err(&pdev->dev, "failed to get irq resource\n");
2463 return irq;
2464 }
2465
2466 ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, coda_irq_handler,
2467 IRQF_ONESHOT, dev_name(&pdev->dev), dev);
2468 if (ret < 0) {
2469 dev_err(&pdev->dev, "failed to request irq: %d\n", ret);
2470 return ret;
2471 }
2472
2473 dev->rstc = devm_reset_control_get_optional(&pdev->dev, NULL);
2474 if (IS_ERR(dev->rstc)) {
2475 ret = PTR_ERR(dev->rstc);
2476 dev_err(&pdev->dev, "failed get reset control: %d\n", ret);
2477 return ret;
2478 }
2479
2480 /* Get IRAM pool from device tree or platform data */
2481 pool = of_gen_pool_get(np, "iram", 0);
2482 if (!pool && pdata)
2483 pool = gen_pool_get(pdata->iram_dev, NULL);
2484 if (!pool) {
2485 dev_err(&pdev->dev, "iram pool not available\n");
2486 return -ENOMEM;
2487 }
2488 dev->iram_pool = pool;
2489
2490 /* Get vdoa_data if supported by the platform */
2491 dev->vdoa = coda_get_vdoa_data();
2492 if (PTR_ERR(dev->vdoa) == -EPROBE_DEFER)
2493 return -EPROBE_DEFER;
2494
2495 ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
2496 if (ret)
2497 return ret;
2498
2499 mutex_init(&dev->dev_mutex);
2500 mutex_init(&dev->coda_mutex);
2501
2502 dev->debugfs_root = debugfs_create_dir("coda", NULL);
2503 if (!dev->debugfs_root)
2504 dev_warn(&pdev->dev, "failed to create debugfs root\n");
2505
2506 /* allocate auxiliary per-device buffers for the BIT processor */
2507 if (dev->devtype->product == CODA_DX6) {
2508 ret = coda_alloc_aux_buf(dev, &dev->workbuf,
2509 dev->devtype->workbuf_size, "workbuf",
2510 dev->debugfs_root);
2511 if (ret < 0)
2512 goto err_v4l2_register;
2513 }
2514
2515 if (dev->devtype->tempbuf_size) {
2516 ret = coda_alloc_aux_buf(dev, &dev->tempbuf,
2517 dev->devtype->tempbuf_size, "tempbuf",
2518 dev->debugfs_root);
2519 if (ret < 0)
2520 goto err_v4l2_register;
2521 }
2522
2523 dev->iram.size = dev->devtype->iram_size;
2524 dev->iram.vaddr = gen_pool_dma_alloc(dev->iram_pool, dev->iram.size,
2525 &dev->iram.paddr);
2526 if (!dev->iram.vaddr) {
2527 dev_warn(&pdev->dev, "unable to alloc iram\n");
2528 } else {
2529 memset(dev->iram.vaddr, 0, dev->iram.size);
2530 dev->iram.blob.data = dev->iram.vaddr;
2531 dev->iram.blob.size = dev->iram.size;
2532 dev->iram.dentry = debugfs_create_blob("iram", 0644,
2533 dev->debugfs_root,
2534 &dev->iram.blob);
2535 }
2536
2537 dev->workqueue = alloc_workqueue("coda", WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
2538 if (!dev->workqueue) {
2539 dev_err(&pdev->dev, "unable to alloc workqueue\n");
2540 ret = -ENOMEM;
2541 goto err_v4l2_register;
2542 }
2543
2544 platform_set_drvdata(pdev, dev);
2545
2546 /*
2547 * Start activated so we can directly call coda_hw_init in
2548 * coda_fw_callback regardless of whether CONFIG_PM is
2549 * enabled or whether the device is associated with a PM domain.
2550 */
2551 pm_runtime_get_noresume(&pdev->dev);
2552 pm_runtime_set_active(&pdev->dev);
2553 pm_runtime_enable(&pdev->dev);
2554
2555 ret = coda_firmware_request(dev);
2556 if (ret)
2557 goto err_alloc_workqueue;
2558 return 0;
2559
2560 err_alloc_workqueue:
2561 destroy_workqueue(dev->workqueue);
2562 err_v4l2_register:
2563 v4l2_device_unregister(&dev->v4l2_dev);
2564 return ret;
2565 }
2566
2567 static int coda_remove(struct platform_device *pdev)
2568 {
2569 struct coda_dev *dev = platform_get_drvdata(pdev);
2570 int i;
2571
2572 for (i = 0; i < ARRAY_SIZE(dev->vfd); i++) {
2573 if (video_get_drvdata(&dev->vfd[i]))
2574 video_unregister_device(&dev->vfd[i]);
2575 }
2576 if (dev->m2m_dev)
2577 v4l2_m2m_release(dev->m2m_dev);
2578 pm_runtime_disable(&pdev->dev);
2579 v4l2_device_unregister(&dev->v4l2_dev);
2580 destroy_workqueue(dev->workqueue);
2581 if (dev->iram.vaddr)
2582 gen_pool_free(dev->iram_pool, (unsigned long)dev->iram.vaddr,
2583 dev->iram.size);
2584 coda_free_aux_buf(dev, &dev->codebuf);
2585 coda_free_aux_buf(dev, &dev->tempbuf);
2586 coda_free_aux_buf(dev, &dev->workbuf);
2587 debugfs_remove_recursive(dev->debugfs_root);
2588 return 0;
2589 }
2590
2591 #ifdef CONFIG_PM
2592 static int coda_runtime_resume(struct device *dev)
2593 {
2594 struct coda_dev *cdev = dev_get_drvdata(dev);
2595 int ret = 0;
2596
2597 if (dev->pm_domain && cdev->codebuf.vaddr) {
2598 ret = coda_hw_init(cdev);
2599 if (ret)
2600 v4l2_err(&cdev->v4l2_dev, "HW initialization failed\n");
2601 }
2602
2603 return ret;
2604 }
2605 #endif
2606
2607 static const struct dev_pm_ops coda_pm_ops = {
2608 SET_RUNTIME_PM_OPS(NULL, coda_runtime_resume, NULL)
2609 };
2610
2611 static struct platform_driver coda_driver = {
2612 .probe = coda_probe,
2613 .remove = coda_remove,
2614 .driver = {
2615 .name = CODA_NAME,
2616 .of_match_table = of_match_ptr(coda_dt_ids),
2617 .pm = &coda_pm_ops,
2618 },
2619 .id_table = coda_platform_ids,
2620 };
2621
2622 module_platform_driver(coda_driver);
2623
2624 MODULE_LICENSE("GPL");
2625 MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
2626 MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver");
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