1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Coda multi-standard codec IP
4 *
5 * Copyright (C) 2012 Vista Silicon S.L.
6 * Javier Martin, <javier.martin@vista-silicon.com>
7 * Xavier Duret
8 */
9
10 #include <linux/clk.h>
11 #include <linux/debugfs.h>
12 #include <linux/delay.h>
13 #include <linux/firmware.h>
14 #include <linux/gcd.h>
15 #include <linux/genalloc.h>
16 #include <linux/idr.h>
17 #include <linux/interrupt.h>
18 #include <linux/io.h>
19 #include <linux/irq.h>
20 #include <linux/kfifo.h>
21 #include <linux/module.h>
22 #include <linux/of_device.h>
23 #include <linux/platform_device.h>
24 #include <linux/pm_runtime.h>
25 #include <linux/slab.h>
26 #include <linux/videodev2.h>
27 #include <linux/of.h>
28 #include <linux/platform_data/media/coda.h>
29 #include <linux/reset.h>
30
31 #include <media/v4l2-ctrls.h>
32 #include <media/v4l2-device.h>
33 #include <media/v4l2-event.h>
34 #include <media/v4l2-ioctl.h>
35 #include <media/v4l2-mem2mem.h>
36 #include <media/videobuf2-v4l2.h>
37 #include <media/videobuf2-dma-contig.h>
38 #include <media/videobuf2-vmalloc.h>
39
40 #include "coda.h"
41 #include "imx-vdoa.h"
42
43 #define CODA_NAME "coda"
44
45 #define CODADX6_MAX_INSTANCES 4
46 #define CODA_MAX_FORMATS 4
47
48 #define CODA_ISRAM_SIZE (2048 * 2)
49
50 #define MIN_W 48
51 #define MIN_H 16
52
53 #define S_ALIGN 1 /* multiple of 2 */
54 #define W_ALIGN 1 /* multiple of 2 */
55 #define H_ALIGN 1 /* multiple of 2 */
56
57 #define fh_to_ctx(__fh) container_of(__fh, struct coda_ctx, fh)
58
59 int coda_debug;
60 module_param(coda_debug, int, 0644);
61 MODULE_PARM_DESC(coda_debug, "Debug level (0-2)");
62
63 static int disable_tiling;
64 module_param(disable_tiling, int, 0644);
65 MODULE_PARM_DESC(disable_tiling, "Disable tiled frame buffers");
66
67 static int disable_vdoa;
68 module_param(disable_vdoa, int, 0644);
69 MODULE_PARM_DESC(disable_vdoa, "Disable Video Data Order Adapter tiled to raster-scan conversion");
70
71 static int enable_bwb = 0;
72 module_param(enable_bwb, int, 0644);
73 MODULE_PARM_DESC(enable_bwb, "Enable BWB unit for decoding, may crash on certain streams");
74
coda_write(struct coda_dev * dev,u32 data,u32 reg)75 void coda_write(struct coda_dev *dev, u32 data, u32 reg)
76 {
77 v4l2_dbg(3, coda_debug, &dev->v4l2_dev,
78 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
79 writel(data, dev->regs_base + reg);
80 }
81
coda_read(struct coda_dev * dev,u32 reg)82 unsigned int coda_read(struct coda_dev *dev, u32 reg)
83 {
84 u32 data;
85
86 data = readl(dev->regs_base + reg);
87 v4l2_dbg(3, coda_debug, &dev->v4l2_dev,
88 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
89 return data;
90 }
91
coda_write_base(struct coda_ctx * ctx,struct coda_q_data * q_data,struct vb2_v4l2_buffer * buf,unsigned int reg_y)92 void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
93 struct vb2_v4l2_buffer *buf, unsigned int reg_y)
94 {
95 u32 base_y = vb2_dma_contig_plane_dma_addr(&buf->vb2_buf, 0);
96 u32 base_cb, base_cr;
97
98 switch (q_data->fourcc) {
99 case V4L2_PIX_FMT_YUYV:
100 /* Fallthrough: IN -H264-> CODA -NV12 MB-> VDOA -YUYV-> OUT */
101 case V4L2_PIX_FMT_NV12:
102 case V4L2_PIX_FMT_YUV420:
103 default:
104 base_cb = base_y + q_data->bytesperline * q_data->height;
105 base_cr = base_cb + q_data->bytesperline * q_data->height / 4;
106 break;
107 case V4L2_PIX_FMT_YVU420:
108 /* Switch Cb and Cr for YVU420 format */
109 base_cr = base_y + q_data->bytesperline * q_data->height;
110 base_cb = base_cr + q_data->bytesperline * q_data->height / 4;
111 break;
112 case V4L2_PIX_FMT_YUV422P:
113 base_cb = base_y + q_data->bytesperline * q_data->height;
114 base_cr = base_cb + q_data->bytesperline * q_data->height / 2;
115 }
116
117 coda_write(ctx->dev, base_y, reg_y);
118 coda_write(ctx->dev, base_cb, reg_y + 4);
119 coda_write(ctx->dev, base_cr, reg_y + 8);
120 }
121
122 #define CODA_CODEC(mode, src_fourcc, dst_fourcc, max_w, max_h) \
123 { mode, src_fourcc, dst_fourcc, max_w, max_h }
124
125 /*
126 * Arrays of codecs supported by each given version of Coda:
127 * i.MX27 -> codadx6
128 * i.MX51 -> codahx4
129 * i.MX53 -> coda7
130 * i.MX6 -> coda960
131 * Use V4L2_PIX_FMT_YUV420 as placeholder for all supported YUV 4:2:0 variants
132 */
133 static const struct coda_codec codadx6_codecs[] = {
134 CODA_CODEC(CODADX6_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576),
135 CODA_CODEC(CODADX6_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 720, 576),
136 };
137
138 static const struct coda_codec codahx4_codecs[] = {
139 CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576),
140 CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
141 CODA_CODEC(CODA7_MODE_DECODE_MP2, V4L2_PIX_FMT_MPEG2, V4L2_PIX_FMT_YUV420, 1920, 1088),
142 CODA_CODEC(CODA7_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1280, 720),
143 };
144
145 static const struct coda_codec coda7_codecs[] = {
146 CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1280, 720),
147 CODA_CODEC(CODA7_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1280, 720),
148 CODA_CODEC(CODA7_MODE_ENCODE_MJPG, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_JPEG, 8192, 8192),
149 CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
150 CODA_CODEC(CODA7_MODE_DECODE_MP2, V4L2_PIX_FMT_MPEG2, V4L2_PIX_FMT_YUV420, 1920, 1088),
151 CODA_CODEC(CODA7_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
152 CODA_CODEC(CODA7_MODE_DECODE_MJPG, V4L2_PIX_FMT_JPEG, V4L2_PIX_FMT_YUV420, 8192, 8192),
153 };
154
155 static const struct coda_codec coda9_codecs[] = {
156 CODA_CODEC(CODA9_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1920, 1088),
157 CODA_CODEC(CODA9_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1920, 1088),
158 CODA_CODEC(CODA9_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
159 CODA_CODEC(CODA9_MODE_DECODE_MP2, V4L2_PIX_FMT_MPEG2, V4L2_PIX_FMT_YUV420, 1920, 1088),
160 CODA_CODEC(CODA9_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
161 };
162
163 struct coda_video_device {
164 const char *name;
165 enum coda_inst_type type;
166 const struct coda_context_ops *ops;
167 bool direct;
168 u32 src_formats[CODA_MAX_FORMATS];
169 u32 dst_formats[CODA_MAX_FORMATS];
170 };
171
172 static const struct coda_video_device coda_bit_encoder = {
173 .name = "coda-encoder",
174 .type = CODA_INST_ENCODER,
175 .ops = &coda_bit_encode_ops,
176 .src_formats = {
177 V4L2_PIX_FMT_NV12,
178 V4L2_PIX_FMT_YUV420,
179 V4L2_PIX_FMT_YVU420,
180 },
181 .dst_formats = {
182 V4L2_PIX_FMT_H264,
183 V4L2_PIX_FMT_MPEG4,
184 },
185 };
186
187 static const struct coda_video_device coda_bit_jpeg_encoder = {
188 .name = "coda-jpeg-encoder",
189 .type = CODA_INST_ENCODER,
190 .ops = &coda_bit_encode_ops,
191 .src_formats = {
192 V4L2_PIX_FMT_NV12,
193 V4L2_PIX_FMT_YUV420,
194 V4L2_PIX_FMT_YVU420,
195 V4L2_PIX_FMT_YUV422P,
196 },
197 .dst_formats = {
198 V4L2_PIX_FMT_JPEG,
199 },
200 };
201
202 static const struct coda_video_device coda_bit_decoder = {
203 .name = "coda-decoder",
204 .type = CODA_INST_DECODER,
205 .ops = &coda_bit_decode_ops,
206 .src_formats = {
207 V4L2_PIX_FMT_H264,
208 V4L2_PIX_FMT_MPEG2,
209 V4L2_PIX_FMT_MPEG4,
210 },
211 .dst_formats = {
212 V4L2_PIX_FMT_NV12,
213 V4L2_PIX_FMT_YUV420,
214 V4L2_PIX_FMT_YVU420,
215 /*
216 * If V4L2_PIX_FMT_YUYV should be default,
217 * set_default_params() must be adjusted.
218 */
219 V4L2_PIX_FMT_YUYV,
220 },
221 };
222
223 static const struct coda_video_device coda_bit_jpeg_decoder = {
224 .name = "coda-jpeg-decoder",
225 .type = CODA_INST_DECODER,
226 .ops = &coda_bit_decode_ops,
227 .src_formats = {
228 V4L2_PIX_FMT_JPEG,
229 },
230 .dst_formats = {
231 V4L2_PIX_FMT_NV12,
232 V4L2_PIX_FMT_YUV420,
233 V4L2_PIX_FMT_YVU420,
234 V4L2_PIX_FMT_YUV422P,
235 },
236 };
237
238 static const struct coda_video_device *codadx6_video_devices[] = {
239 &coda_bit_encoder,
240 };
241
242 static const struct coda_video_device *codahx4_video_devices[] = {
243 &coda_bit_encoder,
244 &coda_bit_decoder,
245 };
246
247 static const struct coda_video_device *coda7_video_devices[] = {
248 &coda_bit_jpeg_encoder,
249 &coda_bit_jpeg_decoder,
250 &coda_bit_encoder,
251 &coda_bit_decoder,
252 };
253
254 static const struct coda_video_device *coda9_video_devices[] = {
255 &coda_bit_encoder,
256 &coda_bit_decoder,
257 };
258
259 /*
260 * Normalize all supported YUV 4:2:0 formats to the value used in the codec
261 * tables.
262 */
coda_format_normalize_yuv(u32 fourcc)263 static u32 coda_format_normalize_yuv(u32 fourcc)
264 {
265 switch (fourcc) {
266 case V4L2_PIX_FMT_NV12:
267 case V4L2_PIX_FMT_YUV420:
268 case V4L2_PIX_FMT_YVU420:
269 case V4L2_PIX_FMT_YUV422P:
270 case V4L2_PIX_FMT_YUYV:
271 return V4L2_PIX_FMT_YUV420;
272 default:
273 return fourcc;
274 }
275 }
276
coda_find_codec(struct coda_dev * dev,int src_fourcc,int dst_fourcc)277 static const struct coda_codec *coda_find_codec(struct coda_dev *dev,
278 int src_fourcc, int dst_fourcc)
279 {
280 const struct coda_codec *codecs = dev->devtype->codecs;
281 int num_codecs = dev->devtype->num_codecs;
282 int k;
283
284 src_fourcc = coda_format_normalize_yuv(src_fourcc);
285 dst_fourcc = coda_format_normalize_yuv(dst_fourcc);
286 if (src_fourcc == dst_fourcc)
287 return NULL;
288
289 for (k = 0; k < num_codecs; k++) {
290 if (codecs[k].src_fourcc == src_fourcc &&
291 codecs[k].dst_fourcc == dst_fourcc)
292 break;
293 }
294
295 if (k == num_codecs)
296 return NULL;
297
298 return &codecs[k];
299 }
300
coda_get_max_dimensions(struct coda_dev * dev,const struct coda_codec * codec,int * max_w,int * max_h)301 static void coda_get_max_dimensions(struct coda_dev *dev,
302 const struct coda_codec *codec,
303 int *max_w, int *max_h)
304 {
305 const struct coda_codec *codecs = dev->devtype->codecs;
306 int num_codecs = dev->devtype->num_codecs;
307 unsigned int w, h;
308 int k;
309
310 if (codec) {
311 w = codec->max_w;
312 h = codec->max_h;
313 } else {
314 for (k = 0, w = 0, h = 0; k < num_codecs; k++) {
315 w = max(w, codecs[k].max_w);
316 h = max(h, codecs[k].max_h);
317 }
318 }
319
320 if (max_w)
321 *max_w = w;
322 if (max_h)
323 *max_h = h;
324 }
325
to_coda_video_device(struct video_device * vdev)326 static const struct coda_video_device *to_coda_video_device(struct video_device
327 *vdev)
328 {
329 struct coda_dev *dev = video_get_drvdata(vdev);
330 unsigned int i = vdev - dev->vfd;
331
332 if (i >= dev->devtype->num_vdevs)
333 return NULL;
334
335 return dev->devtype->vdevs[i];
336 }
337
coda_product_name(int product)338 const char *coda_product_name(int product)
339 {
340 static char buf[9];
341
342 switch (product) {
343 case CODA_DX6:
344 return "CodaDx6";
345 case CODA_HX4:
346 return "CodaHx4";
347 case CODA_7541:
348 return "CODA7541";
349 case CODA_960:
350 return "CODA960";
351 default:
352 snprintf(buf, sizeof(buf), "(0x%04x)", product);
353 return buf;
354 }
355 }
356
coda_get_vdoa_data(void)357 static struct vdoa_data *coda_get_vdoa_data(void)
358 {
359 struct device_node *vdoa_node;
360 struct platform_device *vdoa_pdev;
361 struct vdoa_data *vdoa_data = NULL;
362
363 vdoa_node = of_find_compatible_node(NULL, NULL, "fsl,imx6q-vdoa");
364 if (!vdoa_node)
365 return NULL;
366
367 vdoa_pdev = of_find_device_by_node(vdoa_node);
368 if (!vdoa_pdev)
369 goto out;
370
371 vdoa_data = platform_get_drvdata(vdoa_pdev);
372 if (!vdoa_data)
373 vdoa_data = ERR_PTR(-EPROBE_DEFER);
374
375 out:
376 of_node_put(vdoa_node);
377
378 return vdoa_data;
379 }
380
381 /*
382 * V4L2 ioctl() operations.
383 */
coda_querycap(struct file * file,void * priv,struct v4l2_capability * cap)384 static int coda_querycap(struct file *file, void *priv,
385 struct v4l2_capability *cap)
386 {
387 struct coda_ctx *ctx = fh_to_ctx(priv);
388
389 strscpy(cap->driver, CODA_NAME, sizeof(cap->driver));
390 strscpy(cap->card, coda_product_name(ctx->dev->devtype->product),
391 sizeof(cap->card));
392 strscpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
393 return 0;
394 }
395
coda_enum_fmt(struct file * file,void * priv,struct v4l2_fmtdesc * f)396 static int coda_enum_fmt(struct file *file, void *priv,
397 struct v4l2_fmtdesc *f)
398 {
399 struct video_device *vdev = video_devdata(file);
400 const struct coda_video_device *cvd = to_coda_video_device(vdev);
401 struct coda_ctx *ctx = fh_to_ctx(priv);
402 const u32 *formats;
403
404 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
405 formats = cvd->src_formats;
406 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
407 formats = cvd->dst_formats;
408 else
409 return -EINVAL;
410
411 if (f->index >= CODA_MAX_FORMATS || formats[f->index] == 0)
412 return -EINVAL;
413
414 /* Skip YUYV if the vdoa is not available */
415 if (!ctx->vdoa && f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
416 formats[f->index] == V4L2_PIX_FMT_YUYV)
417 return -EINVAL;
418
419 f->pixelformat = formats[f->index];
420
421 return 0;
422 }
423
coda_g_fmt(struct file * file,void * priv,struct v4l2_format * f)424 static int coda_g_fmt(struct file *file, void *priv,
425 struct v4l2_format *f)
426 {
427 struct coda_q_data *q_data;
428 struct coda_ctx *ctx = fh_to_ctx(priv);
429
430 q_data = get_q_data(ctx, f->type);
431 if (!q_data)
432 return -EINVAL;
433
434 f->fmt.pix.field = V4L2_FIELD_NONE;
435 f->fmt.pix.pixelformat = q_data->fourcc;
436 f->fmt.pix.width = q_data->width;
437 f->fmt.pix.height = q_data->height;
438 f->fmt.pix.bytesperline = q_data->bytesperline;
439
440 f->fmt.pix.sizeimage = q_data->sizeimage;
441 f->fmt.pix.colorspace = ctx->colorspace;
442 f->fmt.pix.xfer_func = ctx->xfer_func;
443 f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
444 f->fmt.pix.quantization = ctx->quantization;
445
446 return 0;
447 }
448
coda_try_pixelformat(struct coda_ctx * ctx,struct v4l2_format * f)449 static int coda_try_pixelformat(struct coda_ctx *ctx, struct v4l2_format *f)
450 {
451 struct coda_q_data *q_data;
452 const u32 *formats;
453 int i;
454
455 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
456 formats = ctx->cvd->src_formats;
457 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
458 formats = ctx->cvd->dst_formats;
459 else
460 return -EINVAL;
461
462 for (i = 0; i < CODA_MAX_FORMATS; i++) {
463 /* Skip YUYV if the vdoa is not available */
464 if (!ctx->vdoa && f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
465 formats[i] == V4L2_PIX_FMT_YUYV)
466 continue;
467
468 if (formats[i] == f->fmt.pix.pixelformat) {
469 f->fmt.pix.pixelformat = formats[i];
470 return 0;
471 }
472 }
473
474 /* Fall back to currently set pixelformat */
475 q_data = get_q_data(ctx, f->type);
476 f->fmt.pix.pixelformat = q_data->fourcc;
477
478 return 0;
479 }
480
coda_try_fmt_vdoa(struct coda_ctx * ctx,struct v4l2_format * f,bool * use_vdoa)481 static int coda_try_fmt_vdoa(struct coda_ctx *ctx, struct v4l2_format *f,
482 bool *use_vdoa)
483 {
484 int err;
485
486 if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
487 return -EINVAL;
488
489 if (!use_vdoa)
490 return -EINVAL;
491
492 if (!ctx->vdoa) {
493 *use_vdoa = false;
494 return 0;
495 }
496
497 err = vdoa_context_configure(NULL, round_up(f->fmt.pix.width, 16),
498 f->fmt.pix.height, f->fmt.pix.pixelformat);
499 if (err) {
500 *use_vdoa = false;
501 return 0;
502 }
503
504 *use_vdoa = true;
505 return 0;
506 }
507
coda_estimate_sizeimage(struct coda_ctx * ctx,u32 sizeimage,u32 width,u32 height)508 static unsigned int coda_estimate_sizeimage(struct coda_ctx *ctx, u32 sizeimage,
509 u32 width, u32 height)
510 {
511 /*
512 * This is a rough estimate for sensible compressed buffer
513 * sizes (between 1 and 16 bits per pixel). This could be
514 * improved by better format specific worst case estimates.
515 */
516 return round_up(clamp(sizeimage, width * height / 8,
517 width * height * 2), PAGE_SIZE);
518 }
519
coda_try_fmt(struct coda_ctx * ctx,const struct coda_codec * codec,struct v4l2_format * f)520 static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
521 struct v4l2_format *f)
522 {
523 struct coda_dev *dev = ctx->dev;
524 unsigned int max_w, max_h;
525 enum v4l2_field field;
526
527 field = f->fmt.pix.field;
528 if (field == V4L2_FIELD_ANY)
529 field = V4L2_FIELD_NONE;
530 else if (V4L2_FIELD_NONE != field)
531 return -EINVAL;
532
533 /* V4L2 specification suggests the driver corrects the format struct
534 * if any of the dimensions is unsupported */
535 f->fmt.pix.field = field;
536
537 coda_get_max_dimensions(dev, codec, &max_w, &max_h);
538 v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w, W_ALIGN,
539 &f->fmt.pix.height, MIN_H, max_h, H_ALIGN,
540 S_ALIGN);
541
542 switch (f->fmt.pix.pixelformat) {
543 case V4L2_PIX_FMT_NV12:
544 case V4L2_PIX_FMT_YUV420:
545 case V4L2_PIX_FMT_YVU420:
546 /*
547 * Frame stride must be at least multiple of 8,
548 * but multiple of 16 for h.264 or JPEG 4:2:x
549 */
550 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
551 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
552 f->fmt.pix.height * 3 / 2;
553 break;
554 case V4L2_PIX_FMT_YUYV:
555 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16) * 2;
556 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
557 f->fmt.pix.height;
558 break;
559 case V4L2_PIX_FMT_YUV422P:
560 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
561 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
562 f->fmt.pix.height * 2;
563 break;
564 case V4L2_PIX_FMT_JPEG:
565 case V4L2_PIX_FMT_H264:
566 case V4L2_PIX_FMT_MPEG4:
567 case V4L2_PIX_FMT_MPEG2:
568 f->fmt.pix.bytesperline = 0;
569 f->fmt.pix.sizeimage = coda_estimate_sizeimage(ctx,
570 f->fmt.pix.sizeimage,
571 f->fmt.pix.width,
572 f->fmt.pix.height);
573 break;
574 default:
575 BUG();
576 }
577
578 return 0;
579 }
580
coda_try_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)581 static int coda_try_fmt_vid_cap(struct file *file, void *priv,
582 struct v4l2_format *f)
583 {
584 struct coda_ctx *ctx = fh_to_ctx(priv);
585 const struct coda_q_data *q_data_src;
586 const struct coda_codec *codec;
587 struct vb2_queue *src_vq;
588 int ret;
589 bool use_vdoa;
590
591 ret = coda_try_pixelformat(ctx, f);
592 if (ret < 0)
593 return ret;
594
595 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
596
597 /*
598 * If the source format is already fixed, only allow the same output
599 * resolution
600 */
601 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
602 if (vb2_is_streaming(src_vq)) {
603 f->fmt.pix.width = q_data_src->width;
604 f->fmt.pix.height = q_data_src->height;
605 }
606
607 f->fmt.pix.colorspace = ctx->colorspace;
608 f->fmt.pix.xfer_func = ctx->xfer_func;
609 f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
610 f->fmt.pix.quantization = ctx->quantization;
611
612 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
613 codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
614 f->fmt.pix.pixelformat);
615 if (!codec)
616 return -EINVAL;
617
618 ret = coda_try_fmt(ctx, codec, f);
619 if (ret < 0)
620 return ret;
621
622 /* The h.264 decoder only returns complete 16x16 macroblocks */
623 if (codec && codec->src_fourcc == V4L2_PIX_FMT_H264) {
624 f->fmt.pix.height = round_up(f->fmt.pix.height, 16);
625 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
626 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
627 f->fmt.pix.height * 3 / 2;
628
629 ret = coda_try_fmt_vdoa(ctx, f, &use_vdoa);
630 if (ret < 0)
631 return ret;
632
633 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) {
634 if (!use_vdoa)
635 return -EINVAL;
636
637 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16) * 2;
638 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
639 f->fmt.pix.height;
640 }
641 }
642
643 return 0;
644 }
645
coda_set_default_colorspace(struct v4l2_pix_format * fmt)646 static void coda_set_default_colorspace(struct v4l2_pix_format *fmt)
647 {
648 enum v4l2_colorspace colorspace;
649
650 if (fmt->pixelformat == V4L2_PIX_FMT_JPEG)
651 colorspace = V4L2_COLORSPACE_JPEG;
652 else if (fmt->width <= 720 && fmt->height <= 576)
653 colorspace = V4L2_COLORSPACE_SMPTE170M;
654 else
655 colorspace = V4L2_COLORSPACE_REC709;
656
657 fmt->colorspace = colorspace;
658 fmt->xfer_func = V4L2_XFER_FUNC_DEFAULT;
659 fmt->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
660 fmt->quantization = V4L2_QUANTIZATION_DEFAULT;
661 }
662
coda_try_fmt_vid_out(struct file * file,void * priv,struct v4l2_format * f)663 static int coda_try_fmt_vid_out(struct file *file, void *priv,
664 struct v4l2_format *f)
665 {
666 struct coda_ctx *ctx = fh_to_ctx(priv);
667 struct coda_dev *dev = ctx->dev;
668 const struct coda_q_data *q_data_dst;
669 const struct coda_codec *codec;
670 int ret;
671
672 ret = coda_try_pixelformat(ctx, f);
673 if (ret < 0)
674 return ret;
675
676 if (f->fmt.pix.colorspace == V4L2_COLORSPACE_DEFAULT)
677 coda_set_default_colorspace(&f->fmt.pix);
678
679 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
680 codec = coda_find_codec(dev, f->fmt.pix.pixelformat, q_data_dst->fourcc);
681
682 return coda_try_fmt(ctx, codec, f);
683 }
684
coda_s_fmt(struct coda_ctx * ctx,struct v4l2_format * f,struct v4l2_rect * r)685 static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f,
686 struct v4l2_rect *r)
687 {
688 struct coda_q_data *q_data;
689 struct vb2_queue *vq;
690
691 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
692 if (!vq)
693 return -EINVAL;
694
695 q_data = get_q_data(ctx, f->type);
696 if (!q_data)
697 return -EINVAL;
698
699 if (vb2_is_busy(vq)) {
700 v4l2_err(&ctx->dev->v4l2_dev, "%s: %s queue busy: %d\n",
701 __func__, v4l2_type_names[f->type], vq->num_buffers);
702 return -EBUSY;
703 }
704
705 q_data->fourcc = f->fmt.pix.pixelformat;
706 q_data->width = f->fmt.pix.width;
707 q_data->height = f->fmt.pix.height;
708 q_data->bytesperline = f->fmt.pix.bytesperline;
709 q_data->sizeimage = f->fmt.pix.sizeimage;
710 if (r) {
711 q_data->rect = *r;
712 } else {
713 q_data->rect.left = 0;
714 q_data->rect.top = 0;
715 q_data->rect.width = f->fmt.pix.width;
716 q_data->rect.height = f->fmt.pix.height;
717 }
718
719 switch (f->fmt.pix.pixelformat) {
720 case V4L2_PIX_FMT_YUYV:
721 ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP;
722 break;
723 case V4L2_PIX_FMT_NV12:
724 if (!disable_tiling && ctx->dev->devtype->product == CODA_960) {
725 ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP;
726 break;
727 }
728 /* else fall through */
729 case V4L2_PIX_FMT_YUV420:
730 case V4L2_PIX_FMT_YVU420:
731 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP;
732 break;
733 default:
734 break;
735 }
736
737 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP &&
738 !coda_try_fmt_vdoa(ctx, f, &ctx->use_vdoa) &&
739 ctx->use_vdoa)
740 vdoa_context_configure(ctx->vdoa,
741 round_up(f->fmt.pix.width, 16),
742 f->fmt.pix.height,
743 f->fmt.pix.pixelformat);
744 else
745 ctx->use_vdoa = false;
746
747 coda_dbg(1, ctx, "Setting %s format, wxh: %dx%d, fmt: %4.4s %c\n",
748 v4l2_type_names[f->type], q_data->width, q_data->height,
749 (char *)&q_data->fourcc,
750 (ctx->tiled_map_type == GDI_LINEAR_FRAME_MAP) ? 'L' : 'T');
751
752 return 0;
753 }
754
coda_s_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)755 static int coda_s_fmt_vid_cap(struct file *file, void *priv,
756 struct v4l2_format *f)
757 {
758 struct coda_ctx *ctx = fh_to_ctx(priv);
759 struct coda_q_data *q_data_src;
760 const struct coda_codec *codec;
761 struct v4l2_rect r;
762 int ret;
763
764 ret = coda_try_fmt_vid_cap(file, priv, f);
765 if (ret)
766 return ret;
767
768 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
769 r.left = 0;
770 r.top = 0;
771 r.width = q_data_src->width;
772 r.height = q_data_src->height;
773
774 ret = coda_s_fmt(ctx, f, &r);
775 if (ret)
776 return ret;
777
778 if (ctx->inst_type != CODA_INST_ENCODER)
779 return 0;
780
781 /* Setting the coded format determines the selected codec */
782 codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
783 f->fmt.pix.pixelformat);
784 if (!codec) {
785 v4l2_err(&ctx->dev->v4l2_dev, "failed to determine codec\n");
786 return -EINVAL;
787 }
788 ctx->codec = codec;
789
790 ctx->colorspace = f->fmt.pix.colorspace;
791 ctx->xfer_func = f->fmt.pix.xfer_func;
792 ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
793 ctx->quantization = f->fmt.pix.quantization;
794
795 return 0;
796 }
797
coda_s_fmt_vid_out(struct file * file,void * priv,struct v4l2_format * f)798 static int coda_s_fmt_vid_out(struct file *file, void *priv,
799 struct v4l2_format *f)
800 {
801 struct coda_ctx *ctx = fh_to_ctx(priv);
802 const struct coda_codec *codec;
803 struct v4l2_format f_cap;
804 struct vb2_queue *dst_vq;
805 int ret;
806
807 ret = coda_try_fmt_vid_out(file, priv, f);
808 if (ret)
809 return ret;
810
811 ret = coda_s_fmt(ctx, f, NULL);
812 if (ret)
813 return ret;
814
815 ctx->colorspace = f->fmt.pix.colorspace;
816 ctx->xfer_func = f->fmt.pix.xfer_func;
817 ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
818 ctx->quantization = f->fmt.pix.quantization;
819
820 if (ctx->inst_type != CODA_INST_DECODER)
821 return 0;
822
823 /* Setting the coded format determines the selected codec */
824 codec = coda_find_codec(ctx->dev, f->fmt.pix.pixelformat,
825 V4L2_PIX_FMT_YUV420);
826 if (!codec) {
827 v4l2_err(&ctx->dev->v4l2_dev, "failed to determine codec\n");
828 return -EINVAL;
829 }
830 ctx->codec = codec;
831
832 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
833 if (!dst_vq)
834 return -EINVAL;
835
836 /*
837 * Setting the capture queue format is not possible while the capture
838 * queue is still busy. This is not an error, but the user will have to
839 * make sure themselves that the capture format is set correctly before
840 * starting the output queue again.
841 */
842 if (vb2_is_busy(dst_vq))
843 return 0;
844
845 memset(&f_cap, 0, sizeof(f_cap));
846 f_cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
847 coda_g_fmt(file, priv, &f_cap);
848 f_cap.fmt.pix.width = f->fmt.pix.width;
849 f_cap.fmt.pix.height = f->fmt.pix.height;
850
851 return coda_s_fmt_vid_cap(file, priv, &f_cap);
852 }
853
coda_reqbufs(struct file * file,void * priv,struct v4l2_requestbuffers * rb)854 static int coda_reqbufs(struct file *file, void *priv,
855 struct v4l2_requestbuffers *rb)
856 {
857 struct coda_ctx *ctx = fh_to_ctx(priv);
858 int ret;
859
860 ret = v4l2_m2m_reqbufs(file, ctx->fh.m2m_ctx, rb);
861 if (ret)
862 return ret;
863
864 /*
865 * Allow to allocate instance specific per-context buffers, such as
866 * bitstream ringbuffer, slice buffer, work buffer, etc. if needed.
867 */
868 if (rb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && ctx->ops->reqbufs)
869 return ctx->ops->reqbufs(ctx, rb);
870
871 return 0;
872 }
873
coda_qbuf(struct file * file,void * priv,struct v4l2_buffer * buf)874 static int coda_qbuf(struct file *file, void *priv,
875 struct v4l2_buffer *buf)
876 {
877 struct coda_ctx *ctx = fh_to_ctx(priv);
878
879 if (ctx->inst_type == CODA_INST_DECODER &&
880 buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
881 buf->flags &= ~V4L2_BUF_FLAG_LAST;
882
883 return v4l2_m2m_qbuf(file, ctx->fh.m2m_ctx, buf);
884 }
885
coda_dqbuf(struct file * file,void * priv,struct v4l2_buffer * buf)886 static int coda_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
887 {
888 struct coda_ctx *ctx = fh_to_ctx(priv);
889 int ret;
890
891 ret = v4l2_m2m_dqbuf(file, ctx->fh.m2m_ctx, buf);
892
893 if (ctx->inst_type == CODA_INST_DECODER &&
894 buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
895 buf->flags &= ~V4L2_BUF_FLAG_LAST;
896
897 return ret;
898 }
899
coda_m2m_buf_done(struct coda_ctx * ctx,struct vb2_v4l2_buffer * buf,enum vb2_buffer_state state)900 void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
901 enum vb2_buffer_state state)
902 {
903 const struct v4l2_event eos_event = {
904 .type = V4L2_EVENT_EOS
905 };
906
907 if (buf->flags & V4L2_BUF_FLAG_LAST)
908 v4l2_event_queue_fh(&ctx->fh, &eos_event);
909
910 v4l2_m2m_buf_done(buf, state);
911 }
912
coda_g_selection(struct file * file,void * fh,struct v4l2_selection * s)913 static int coda_g_selection(struct file *file, void *fh,
914 struct v4l2_selection *s)
915 {
916 struct coda_ctx *ctx = fh_to_ctx(fh);
917 struct coda_q_data *q_data;
918 struct v4l2_rect r, *rsel;
919
920 q_data = get_q_data(ctx, s->type);
921 if (!q_data)
922 return -EINVAL;
923
924 r.left = 0;
925 r.top = 0;
926 r.width = q_data->width;
927 r.height = q_data->height;
928 rsel = &q_data->rect;
929
930 switch (s->target) {
931 case V4L2_SEL_TGT_CROP_DEFAULT:
932 case V4L2_SEL_TGT_CROP_BOUNDS:
933 rsel = &r;
934 /* fallthrough */
935 case V4L2_SEL_TGT_CROP:
936 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
937 return -EINVAL;
938 break;
939 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
940 case V4L2_SEL_TGT_COMPOSE_PADDED:
941 rsel = &r;
942 /* fallthrough */
943 case V4L2_SEL_TGT_COMPOSE:
944 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
945 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
946 return -EINVAL;
947 break;
948 default:
949 return -EINVAL;
950 }
951
952 s->r = *rsel;
953
954 return 0;
955 }
956
coda_s_selection(struct file * file,void * fh,struct v4l2_selection * s)957 static int coda_s_selection(struct file *file, void *fh,
958 struct v4l2_selection *s)
959 {
960 struct coda_ctx *ctx = fh_to_ctx(fh);
961 struct coda_q_data *q_data;
962
963 switch (s->target) {
964 case V4L2_SEL_TGT_CROP:
965 if (ctx->inst_type == CODA_INST_ENCODER &&
966 s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
967 q_data = get_q_data(ctx, s->type);
968 if (!q_data)
969 return -EINVAL;
970
971 s->r.left = 0;
972 s->r.top = 0;
973 s->r.width = clamp(s->r.width, 2U, q_data->width);
974 s->r.height = clamp(s->r.height, 2U, q_data->height);
975
976 if (s->flags & V4L2_SEL_FLAG_LE) {
977 s->r.width = round_up(s->r.width, 2);
978 s->r.height = round_up(s->r.height, 2);
979 } else {
980 s->r.width = round_down(s->r.width, 2);
981 s->r.height = round_down(s->r.height, 2);
982 }
983
984 q_data->rect = s->r;
985
986 coda_dbg(1, ctx, "Setting crop rectangle: %dx%d\n",
987 s->r.width, s->r.height);
988
989 return 0;
990 }
991 /* else fall through */
992 case V4L2_SEL_TGT_NATIVE_SIZE:
993 case V4L2_SEL_TGT_COMPOSE:
994 return coda_g_selection(file, fh, s);
995 default:
996 /* v4l2-compliance expects this to fail for read-only targets */
997 return -EINVAL;
998 }
999 }
1000
coda_try_encoder_cmd(struct file * file,void * fh,struct v4l2_encoder_cmd * ec)1001 static int coda_try_encoder_cmd(struct file *file, void *fh,
1002 struct v4l2_encoder_cmd *ec)
1003 {
1004 struct coda_ctx *ctx = fh_to_ctx(fh);
1005
1006 if (ctx->inst_type != CODA_INST_ENCODER)
1007 return -ENOTTY;
1008
1009 return v4l2_m2m_ioctl_try_encoder_cmd(file, fh, ec);
1010 }
1011
coda_wake_up_capture_queue(struct coda_ctx * ctx)1012 static void coda_wake_up_capture_queue(struct coda_ctx *ctx)
1013 {
1014 struct vb2_queue *dst_vq;
1015
1016 coda_dbg(1, ctx, "waking up capture queue\n");
1017
1018 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1019 dst_vq->last_buffer_dequeued = true;
1020 wake_up(&dst_vq->done_wq);
1021 }
1022
coda_encoder_cmd(struct file * file,void * fh,struct v4l2_encoder_cmd * ec)1023 static int coda_encoder_cmd(struct file *file, void *fh,
1024 struct v4l2_encoder_cmd *ec)
1025 {
1026 struct coda_ctx *ctx = fh_to_ctx(fh);
1027 struct vb2_v4l2_buffer *buf;
1028 int ret;
1029
1030 ret = coda_try_encoder_cmd(file, fh, ec);
1031 if (ret < 0)
1032 return ret;
1033
1034 mutex_lock(&ctx->wakeup_mutex);
1035 buf = v4l2_m2m_last_src_buf(ctx->fh.m2m_ctx);
1036 if (buf) {
1037 /*
1038 * If the last output buffer is still on the queue, make sure
1039 * that decoder finish_run will see the last flag and report it
1040 * to userspace.
1041 */
1042 buf->flags |= V4L2_BUF_FLAG_LAST;
1043 } else {
1044 /* Set the stream-end flag on this context */
1045 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
1046
1047 /*
1048 * If the last output buffer has already been taken from the
1049 * queue, wake up the capture queue and signal end of stream
1050 * via the -EPIPE mechanism.
1051 */
1052 coda_wake_up_capture_queue(ctx);
1053 }
1054 mutex_unlock(&ctx->wakeup_mutex);
1055
1056 return 0;
1057 }
1058
coda_try_decoder_cmd(struct file * file,void * fh,struct v4l2_decoder_cmd * dc)1059 static int coda_try_decoder_cmd(struct file *file, void *fh,
1060 struct v4l2_decoder_cmd *dc)
1061 {
1062 struct coda_ctx *ctx = fh_to_ctx(fh);
1063
1064 if (ctx->inst_type != CODA_INST_DECODER)
1065 return -ENOTTY;
1066
1067 return v4l2_m2m_ioctl_try_decoder_cmd(file, fh, dc);
1068 }
1069
coda_decoder_cmd(struct file * file,void * fh,struct v4l2_decoder_cmd * dc)1070 static int coda_decoder_cmd(struct file *file, void *fh,
1071 struct v4l2_decoder_cmd *dc)
1072 {
1073 struct coda_ctx *ctx = fh_to_ctx(fh);
1074 struct coda_dev *dev = ctx->dev;
1075 struct vb2_v4l2_buffer *buf;
1076 struct vb2_queue *dst_vq;
1077 bool stream_end;
1078 bool wakeup;
1079 int ret;
1080
1081 ret = coda_try_decoder_cmd(file, fh, dc);
1082 if (ret < 0)
1083 return ret;
1084
1085 switch (dc->cmd) {
1086 case V4L2_DEC_CMD_START:
1087 mutex_lock(&dev->coda_mutex);
1088 mutex_lock(&ctx->bitstream_mutex);
1089 coda_bitstream_flush(ctx);
1090 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
1091 V4L2_BUF_TYPE_VIDEO_CAPTURE);
1092 vb2_clear_last_buffer_dequeued(dst_vq);
1093 ctx->bit_stream_param &= ~CODA_BIT_STREAM_END_FLAG;
1094 coda_fill_bitstream(ctx, NULL);
1095 mutex_unlock(&ctx->bitstream_mutex);
1096 mutex_unlock(&dev->coda_mutex);
1097 break;
1098 case V4L2_DEC_CMD_STOP:
1099 stream_end = false;
1100 wakeup = false;
1101
1102 buf = v4l2_m2m_last_src_buf(ctx->fh.m2m_ctx);
1103 if (buf) {
1104 coda_dbg(1, ctx, "marking last pending buffer\n");
1105
1106 /* Mark last buffer */
1107 buf->flags |= V4L2_BUF_FLAG_LAST;
1108
1109 if (v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) == 0) {
1110 coda_dbg(1, ctx, "all remaining buffers queued\n");
1111 stream_end = true;
1112 }
1113 } else {
1114 coda_dbg(1, ctx, "marking last meta\n");
1115
1116 /* Mark last meta */
1117 spin_lock(&ctx->buffer_meta_lock);
1118 if (!list_empty(&ctx->buffer_meta_list)) {
1119 struct coda_buffer_meta *meta;
1120
1121 meta = list_last_entry(&ctx->buffer_meta_list,
1122 struct coda_buffer_meta,
1123 list);
1124 meta->last = true;
1125 stream_end = true;
1126 } else {
1127 wakeup = true;
1128 }
1129 spin_unlock(&ctx->buffer_meta_lock);
1130 }
1131
1132 if (stream_end) {
1133 coda_dbg(1, ctx, "all remaining buffers queued\n");
1134
1135 /* Set the stream-end flag on this context */
1136 coda_bit_stream_end_flag(ctx);
1137 ctx->hold = false;
1138 v4l2_m2m_try_schedule(ctx->fh.m2m_ctx);
1139 }
1140
1141 if (wakeup) {
1142 /* If there is no buffer in flight, wake up */
1143 coda_wake_up_capture_queue(ctx);
1144 }
1145
1146 break;
1147 default:
1148 return -EINVAL;
1149 }
1150
1151 return 0;
1152 }
1153
coda_enum_framesizes(struct file * file,void * fh,struct v4l2_frmsizeenum * fsize)1154 static int coda_enum_framesizes(struct file *file, void *fh,
1155 struct v4l2_frmsizeenum *fsize)
1156 {
1157 struct coda_ctx *ctx = fh_to_ctx(fh);
1158 struct coda_q_data *q_data_dst;
1159 const struct coda_codec *codec;
1160
1161 if (ctx->inst_type != CODA_INST_ENCODER)
1162 return -ENOTTY;
1163
1164 if (fsize->index)
1165 return -EINVAL;
1166
1167 if (coda_format_normalize_yuv(fsize->pixel_format) ==
1168 V4L2_PIX_FMT_YUV420) {
1169 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1170 codec = coda_find_codec(ctx->dev, fsize->pixel_format,
1171 q_data_dst->fourcc);
1172 } else {
1173 codec = coda_find_codec(ctx->dev, V4L2_PIX_FMT_YUV420,
1174 fsize->pixel_format);
1175 }
1176 if (!codec)
1177 return -EINVAL;
1178
1179 fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;
1180 fsize->stepwise.min_width = MIN_W;
1181 fsize->stepwise.max_width = codec->max_w;
1182 fsize->stepwise.step_width = 1;
1183 fsize->stepwise.min_height = MIN_H;
1184 fsize->stepwise.max_height = codec->max_h;
1185 fsize->stepwise.step_height = 1;
1186
1187 return 0;
1188 }
1189
coda_enum_frameintervals(struct file * file,void * fh,struct v4l2_frmivalenum * f)1190 static int coda_enum_frameintervals(struct file *file, void *fh,
1191 struct v4l2_frmivalenum *f)
1192 {
1193 struct coda_ctx *ctx = fh_to_ctx(fh);
1194 int i;
1195
1196 if (f->index)
1197 return -EINVAL;
1198
1199 /* Disallow YUYV if the vdoa is not available */
1200 if (!ctx->vdoa && f->pixel_format == V4L2_PIX_FMT_YUYV)
1201 return -EINVAL;
1202
1203 for (i = 0; i < CODA_MAX_FORMATS; i++) {
1204 if (f->pixel_format == ctx->cvd->src_formats[i] ||
1205 f->pixel_format == ctx->cvd->dst_formats[i])
1206 break;
1207 }
1208 if (i == CODA_MAX_FORMATS)
1209 return -EINVAL;
1210
1211 f->type = V4L2_FRMIVAL_TYPE_CONTINUOUS;
1212 f->stepwise.min.numerator = 1;
1213 f->stepwise.min.denominator = 65535;
1214 f->stepwise.max.numerator = 65536;
1215 f->stepwise.max.denominator = 1;
1216 f->stepwise.step.numerator = 1;
1217 f->stepwise.step.denominator = 1;
1218
1219 return 0;
1220 }
1221
coda_g_parm(struct file * file,void * fh,struct v4l2_streamparm * a)1222 static int coda_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1223 {
1224 struct coda_ctx *ctx = fh_to_ctx(fh);
1225 struct v4l2_fract *tpf;
1226
1227 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1228 return -EINVAL;
1229
1230 a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
1231 tpf = &a->parm.output.timeperframe;
1232 tpf->denominator = ctx->params.framerate & CODA_FRATE_RES_MASK;
1233 tpf->numerator = 1 + (ctx->params.framerate >>
1234 CODA_FRATE_DIV_OFFSET);
1235
1236 return 0;
1237 }
1238
1239 /*
1240 * Approximate timeperframe v4l2_fract with values that can be written
1241 * into the 16-bit CODA_FRATE_DIV and CODA_FRATE_RES fields.
1242 */
coda_approximate_timeperframe(struct v4l2_fract * timeperframe)1243 static void coda_approximate_timeperframe(struct v4l2_fract *timeperframe)
1244 {
1245 struct v4l2_fract s = *timeperframe;
1246 struct v4l2_fract f0;
1247 struct v4l2_fract f1 = { 1, 0 };
1248 struct v4l2_fract f2 = { 0, 1 };
1249 unsigned int i, div, s_denominator;
1250
1251 /* Lower bound is 1/65535 */
1252 if (s.numerator == 0 || s.denominator / s.numerator > 65535) {
1253 timeperframe->numerator = 1;
1254 timeperframe->denominator = 65535;
1255 return;
1256 }
1257
1258 /* Upper bound is 65536/1 */
1259 if (s.denominator == 0 || s.numerator / s.denominator > 65536) {
1260 timeperframe->numerator = 65536;
1261 timeperframe->denominator = 1;
1262 return;
1263 }
1264
1265 /* Reduce fraction to lowest terms */
1266 div = gcd(s.numerator, s.denominator);
1267 if (div > 1) {
1268 s.numerator /= div;
1269 s.denominator /= div;
1270 }
1271
1272 if (s.numerator <= 65536 && s.denominator < 65536) {
1273 *timeperframe = s;
1274 return;
1275 }
1276
1277 /* Find successive convergents from continued fraction expansion */
1278 while (f2.numerator <= 65536 && f2.denominator < 65536) {
1279 f0 = f1;
1280 f1 = f2;
1281
1282 /* Stop when f2 exactly equals timeperframe */
1283 if (s.numerator == 0)
1284 break;
1285
1286 i = s.denominator / s.numerator;
1287
1288 f2.numerator = f0.numerator + i * f1.numerator;
1289 f2.denominator = f0.denominator + i * f2.denominator;
1290
1291 s_denominator = s.numerator;
1292 s.numerator = s.denominator % s.numerator;
1293 s.denominator = s_denominator;
1294 }
1295
1296 *timeperframe = f1;
1297 }
1298
coda_timeperframe_to_frate(struct v4l2_fract * timeperframe)1299 static uint32_t coda_timeperframe_to_frate(struct v4l2_fract *timeperframe)
1300 {
1301 return ((timeperframe->numerator - 1) << CODA_FRATE_DIV_OFFSET) |
1302 timeperframe->denominator;
1303 }
1304
coda_s_parm(struct file * file,void * fh,struct v4l2_streamparm * a)1305 static int coda_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1306 {
1307 struct coda_ctx *ctx = fh_to_ctx(fh);
1308 struct v4l2_fract *tpf;
1309
1310 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1311 return -EINVAL;
1312
1313 a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
1314 tpf = &a->parm.output.timeperframe;
1315 coda_approximate_timeperframe(tpf);
1316 ctx->params.framerate = coda_timeperframe_to_frate(tpf);
1317 ctx->params.framerate_changed = true;
1318
1319 return 0;
1320 }
1321
coda_subscribe_event(struct v4l2_fh * fh,const struct v4l2_event_subscription * sub)1322 static int coda_subscribe_event(struct v4l2_fh *fh,
1323 const struct v4l2_event_subscription *sub)
1324 {
1325 struct coda_ctx *ctx = fh_to_ctx(fh);
1326
1327 switch (sub->type) {
1328 case V4L2_EVENT_EOS:
1329 return v4l2_event_subscribe(fh, sub, 0, NULL);
1330 case V4L2_EVENT_SOURCE_CHANGE:
1331 if (ctx->inst_type == CODA_INST_DECODER)
1332 return v4l2_event_subscribe(fh, sub, 0, NULL);
1333 else
1334 return -EINVAL;
1335 default:
1336 return v4l2_ctrl_subscribe_event(fh, sub);
1337 }
1338 }
1339
1340 static const struct v4l2_ioctl_ops coda_ioctl_ops = {
1341 .vidioc_querycap = coda_querycap,
1342
1343 .vidioc_enum_fmt_vid_cap = coda_enum_fmt,
1344 .vidioc_g_fmt_vid_cap = coda_g_fmt,
1345 .vidioc_try_fmt_vid_cap = coda_try_fmt_vid_cap,
1346 .vidioc_s_fmt_vid_cap = coda_s_fmt_vid_cap,
1347
1348 .vidioc_enum_fmt_vid_out = coda_enum_fmt,
1349 .vidioc_g_fmt_vid_out = coda_g_fmt,
1350 .vidioc_try_fmt_vid_out = coda_try_fmt_vid_out,
1351 .vidioc_s_fmt_vid_out = coda_s_fmt_vid_out,
1352
1353 .vidioc_reqbufs = coda_reqbufs,
1354 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
1355
1356 .vidioc_qbuf = coda_qbuf,
1357 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
1358 .vidioc_dqbuf = coda_dqbuf,
1359 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
1360 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
1361
1362 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
1363 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
1364
1365 .vidioc_g_selection = coda_g_selection,
1366 .vidioc_s_selection = coda_s_selection,
1367
1368 .vidioc_try_encoder_cmd = coda_try_encoder_cmd,
1369 .vidioc_encoder_cmd = coda_encoder_cmd,
1370 .vidioc_try_decoder_cmd = coda_try_decoder_cmd,
1371 .vidioc_decoder_cmd = coda_decoder_cmd,
1372
1373 .vidioc_g_parm = coda_g_parm,
1374 .vidioc_s_parm = coda_s_parm,
1375
1376 .vidioc_enum_framesizes = coda_enum_framesizes,
1377 .vidioc_enum_frameintervals = coda_enum_frameintervals,
1378
1379 .vidioc_subscribe_event = coda_subscribe_event,
1380 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1381 };
1382
1383 /*
1384 * Mem-to-mem operations.
1385 */
1386
coda_device_run(void * m2m_priv)1387 static void coda_device_run(void *m2m_priv)
1388 {
1389 struct coda_ctx *ctx = m2m_priv;
1390 struct coda_dev *dev = ctx->dev;
1391
1392 queue_work(dev->workqueue, &ctx->pic_run_work);
1393 }
1394
coda_pic_run_work(struct work_struct * work)1395 static void coda_pic_run_work(struct work_struct *work)
1396 {
1397 struct coda_ctx *ctx = container_of(work, struct coda_ctx, pic_run_work);
1398 struct coda_dev *dev = ctx->dev;
1399 int ret;
1400
1401 mutex_lock(&ctx->buffer_mutex);
1402 mutex_lock(&dev->coda_mutex);
1403
1404 ret = ctx->ops->prepare_run(ctx);
1405 if (ret < 0 && ctx->inst_type == CODA_INST_DECODER) {
1406 mutex_unlock(&dev->coda_mutex);
1407 mutex_unlock(&ctx->buffer_mutex);
1408 /* job_finish scheduled by prepare_decode */
1409 return;
1410 }
1411
1412 if (!wait_for_completion_timeout(&ctx->completion,
1413 msecs_to_jiffies(1000))) {
1414 dev_err(dev->dev, "CODA PIC_RUN timeout\n");
1415
1416 ctx->hold = true;
1417
1418 coda_hw_reset(ctx);
1419
1420 if (ctx->ops->run_timeout)
1421 ctx->ops->run_timeout(ctx);
1422 } else if (!ctx->aborting) {
1423 ctx->ops->finish_run(ctx);
1424 }
1425
1426 if ((ctx->aborting || (!ctx->streamon_cap && !ctx->streamon_out)) &&
1427 ctx->ops->seq_end_work)
1428 queue_work(dev->workqueue, &ctx->seq_end_work);
1429
1430 mutex_unlock(&dev->coda_mutex);
1431 mutex_unlock(&ctx->buffer_mutex);
1432
1433 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
1434 }
1435
coda_job_ready(void * m2m_priv)1436 static int coda_job_ready(void *m2m_priv)
1437 {
1438 struct coda_ctx *ctx = m2m_priv;
1439 int src_bufs = v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx);
1440
1441 /*
1442 * For both 'P' and 'key' frame cases 1 picture
1443 * and 1 frame are needed. In the decoder case,
1444 * the compressed frame can be in the bitstream.
1445 */
1446 if (!src_bufs && ctx->inst_type != CODA_INST_DECODER) {
1447 coda_dbg(1, ctx, "not ready: not enough vid-out buffers.\n");
1448 return 0;
1449 }
1450
1451 if (!v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx)) {
1452 coda_dbg(1, ctx, "not ready: not enough vid-cap buffers.\n");
1453 return 0;
1454 }
1455
1456 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1457 bool stream_end = ctx->bit_stream_param &
1458 CODA_BIT_STREAM_END_FLAG;
1459 int num_metas = ctx->num_metas;
1460 struct coda_buffer_meta *meta;
1461 unsigned int count;
1462
1463 count = hweight32(ctx->frm_dis_flg);
1464 if (ctx->use_vdoa && count >= (ctx->num_internal_frames - 1)) {
1465 coda_dbg(1, ctx,
1466 "not ready: all internal buffers in use: %d/%d (0x%x)",
1467 count, ctx->num_internal_frames,
1468 ctx->frm_dis_flg);
1469 return 0;
1470 }
1471
1472 if (ctx->hold && !src_bufs) {
1473 coda_dbg(1, ctx,
1474 "not ready: on hold for more buffers.\n");
1475 return 0;
1476 }
1477
1478 if (!stream_end && (num_metas + src_bufs) < 2) {
1479 coda_dbg(1, ctx,
1480 "not ready: need 2 buffers available (queue:%d + bitstream:%d)\n",
1481 num_metas, src_bufs);
1482 return 0;
1483 }
1484
1485 meta = list_first_entry(&ctx->buffer_meta_list,
1486 struct coda_buffer_meta, list);
1487 if (!coda_bitstream_can_fetch_past(ctx, meta->end) &&
1488 !stream_end) {
1489 coda_dbg(1, ctx,
1490 "not ready: not enough bitstream data to read past %u (%u)\n",
1491 meta->end, ctx->bitstream_fifo.kfifo.in);
1492 return 0;
1493 }
1494 }
1495
1496 if (ctx->aborting) {
1497 coda_dbg(1, ctx, "not ready: aborting\n");
1498 return 0;
1499 }
1500
1501 coda_dbg(2, ctx, "job ready\n");
1502
1503 return 1;
1504 }
1505
coda_job_abort(void * priv)1506 static void coda_job_abort(void *priv)
1507 {
1508 struct coda_ctx *ctx = priv;
1509
1510 ctx->aborting = 1;
1511
1512 coda_dbg(1, ctx, "job abort\n");
1513 }
1514
1515 static const struct v4l2_m2m_ops coda_m2m_ops = {
1516 .device_run = coda_device_run,
1517 .job_ready = coda_job_ready,
1518 .job_abort = coda_job_abort,
1519 };
1520
set_default_params(struct coda_ctx * ctx)1521 static void set_default_params(struct coda_ctx *ctx)
1522 {
1523 unsigned int max_w, max_h, usize, csize;
1524
1525 ctx->codec = coda_find_codec(ctx->dev, ctx->cvd->src_formats[0],
1526 ctx->cvd->dst_formats[0]);
1527 max_w = min(ctx->codec->max_w, 1920U);
1528 max_h = min(ctx->codec->max_h, 1088U);
1529 usize = max_w * max_h * 3 / 2;
1530 csize = coda_estimate_sizeimage(ctx, usize, max_w, max_h);
1531
1532 ctx->params.codec_mode = ctx->codec->mode;
1533 if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_JPEG)
1534 ctx->colorspace = V4L2_COLORSPACE_JPEG;
1535 else
1536 ctx->colorspace = V4L2_COLORSPACE_REC709;
1537 ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
1538 ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
1539 ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
1540 ctx->params.framerate = 30;
1541
1542 /* Default formats for output and input queues */
1543 ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->cvd->src_formats[0];
1544 ctx->q_data[V4L2_M2M_DST].fourcc = ctx->cvd->dst_formats[0];
1545 ctx->q_data[V4L2_M2M_SRC].width = max_w;
1546 ctx->q_data[V4L2_M2M_SRC].height = max_h;
1547 ctx->q_data[V4L2_M2M_DST].width = max_w;
1548 ctx->q_data[V4L2_M2M_DST].height = max_h;
1549 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_YUV420) {
1550 ctx->q_data[V4L2_M2M_SRC].bytesperline = max_w;
1551 ctx->q_data[V4L2_M2M_SRC].sizeimage = usize;
1552 ctx->q_data[V4L2_M2M_DST].bytesperline = 0;
1553 ctx->q_data[V4L2_M2M_DST].sizeimage = csize;
1554 } else {
1555 ctx->q_data[V4L2_M2M_SRC].bytesperline = 0;
1556 ctx->q_data[V4L2_M2M_SRC].sizeimage = csize;
1557 ctx->q_data[V4L2_M2M_DST].bytesperline = max_w;
1558 ctx->q_data[V4L2_M2M_DST].sizeimage = usize;
1559 }
1560 ctx->q_data[V4L2_M2M_SRC].rect.width = max_w;
1561 ctx->q_data[V4L2_M2M_SRC].rect.height = max_h;
1562 ctx->q_data[V4L2_M2M_DST].rect.width = max_w;
1563 ctx->q_data[V4L2_M2M_DST].rect.height = max_h;
1564
1565 /*
1566 * Since the RBC2AXI logic only supports a single chroma plane,
1567 * macroblock tiling only works for to NV12 pixel format.
1568 */
1569 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP;
1570 }
1571
1572 /*
1573 * Queue operations
1574 */
coda_queue_setup(struct vb2_queue * vq,unsigned int * nbuffers,unsigned int * nplanes,unsigned int sizes[],struct device * alloc_devs[])1575 static int coda_queue_setup(struct vb2_queue *vq,
1576 unsigned int *nbuffers, unsigned int *nplanes,
1577 unsigned int sizes[], struct device *alloc_devs[])
1578 {
1579 struct coda_ctx *ctx = vb2_get_drv_priv(vq);
1580 struct coda_q_data *q_data;
1581 unsigned int size;
1582
1583 q_data = get_q_data(ctx, vq->type);
1584 size = q_data->sizeimage;
1585
1586 if (*nplanes)
1587 return sizes[0] < size ? -EINVAL : 0;
1588
1589 *nplanes = 1;
1590 sizes[0] = size;
1591
1592 coda_dbg(1, ctx, "get %d buffer(s) of size %d each.\n", *nbuffers,
1593 size);
1594
1595 return 0;
1596 }
1597
coda_buf_prepare(struct vb2_buffer * vb)1598 static int coda_buf_prepare(struct vb2_buffer *vb)
1599 {
1600 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1601 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1602 struct coda_q_data *q_data;
1603
1604 q_data = get_q_data(ctx, vb->vb2_queue->type);
1605 if (V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) {
1606 if (vbuf->field == V4L2_FIELD_ANY)
1607 vbuf->field = V4L2_FIELD_NONE;
1608 if (vbuf->field != V4L2_FIELD_NONE) {
1609 v4l2_warn(&ctx->dev->v4l2_dev,
1610 "%s field isn't supported\n", __func__);
1611 return -EINVAL;
1612 }
1613 }
1614
1615 if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
1616 v4l2_warn(&ctx->dev->v4l2_dev,
1617 "%s data will not fit into plane (%lu < %lu)\n",
1618 __func__, vb2_plane_size(vb, 0),
1619 (long)q_data->sizeimage);
1620 return -EINVAL;
1621 }
1622
1623 return 0;
1624 }
1625
coda_update_menu_ctrl(struct v4l2_ctrl * ctrl,int value)1626 static void coda_update_menu_ctrl(struct v4l2_ctrl *ctrl, int value)
1627 {
1628 if (!ctrl)
1629 return;
1630
1631 v4l2_ctrl_lock(ctrl);
1632
1633 /*
1634 * Extend the control range if the parsed stream contains a known but
1635 * unsupported value or level.
1636 */
1637 if (value > ctrl->maximum) {
1638 __v4l2_ctrl_modify_range(ctrl, ctrl->minimum, value,
1639 ctrl->menu_skip_mask & ~(1 << value),
1640 ctrl->default_value);
1641 } else if (value < ctrl->minimum) {
1642 __v4l2_ctrl_modify_range(ctrl, value, ctrl->maximum,
1643 ctrl->menu_skip_mask & ~(1 << value),
1644 ctrl->default_value);
1645 }
1646
1647 __v4l2_ctrl_s_ctrl(ctrl, value);
1648
1649 v4l2_ctrl_unlock(ctrl);
1650 }
1651
coda_update_profile_level_ctrls(struct coda_ctx * ctx,u8 profile_idc,u8 level_idc)1652 void coda_update_profile_level_ctrls(struct coda_ctx *ctx, u8 profile_idc,
1653 u8 level_idc)
1654 {
1655 const char * const *profile_names;
1656 const char * const *level_names;
1657 struct v4l2_ctrl *profile_ctrl;
1658 struct v4l2_ctrl *level_ctrl;
1659 const char *codec_name;
1660 u32 profile_cid;
1661 u32 level_cid;
1662 int profile;
1663 int level;
1664
1665 switch (ctx->codec->src_fourcc) {
1666 case V4L2_PIX_FMT_H264:
1667 codec_name = "H264";
1668 profile_cid = V4L2_CID_MPEG_VIDEO_H264_PROFILE;
1669 level_cid = V4L2_CID_MPEG_VIDEO_H264_LEVEL;
1670 profile_ctrl = ctx->h264_profile_ctrl;
1671 level_ctrl = ctx->h264_level_ctrl;
1672 profile = coda_h264_profile(profile_idc);
1673 level = coda_h264_level(level_idc);
1674 break;
1675 case V4L2_PIX_FMT_MPEG2:
1676 codec_name = "MPEG-2";
1677 profile_cid = V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE;
1678 level_cid = V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL;
1679 profile_ctrl = ctx->mpeg2_profile_ctrl;
1680 level_ctrl = ctx->mpeg2_level_ctrl;
1681 profile = coda_mpeg2_profile(profile_idc);
1682 level = coda_mpeg2_level(level_idc);
1683 break;
1684 case V4L2_PIX_FMT_MPEG4:
1685 codec_name = "MPEG-4";
1686 profile_cid = V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE;
1687 level_cid = V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL;
1688 profile_ctrl = ctx->mpeg4_profile_ctrl;
1689 level_ctrl = ctx->mpeg4_level_ctrl;
1690 profile = coda_mpeg4_profile(profile_idc);
1691 level = coda_mpeg4_level(level_idc);
1692 break;
1693 default:
1694 return;
1695 }
1696
1697 profile_names = v4l2_ctrl_get_menu(profile_cid);
1698 level_names = v4l2_ctrl_get_menu(level_cid);
1699
1700 if (profile < 0) {
1701 v4l2_warn(&ctx->dev->v4l2_dev, "Invalid %s profile: %u\n",
1702 codec_name, profile_idc);
1703 } else {
1704 coda_dbg(1, ctx, "Parsed %s profile: %s\n", codec_name,
1705 profile_names[profile]);
1706 coda_update_menu_ctrl(profile_ctrl, profile);
1707 }
1708
1709 if (level < 0) {
1710 v4l2_warn(&ctx->dev->v4l2_dev, "Invalid %s level: %u\n",
1711 codec_name, level_idc);
1712 } else {
1713 coda_dbg(1, ctx, "Parsed %s level: %s\n", codec_name,
1714 level_names[level]);
1715 coda_update_menu_ctrl(level_ctrl, level);
1716 }
1717 }
1718
coda_queue_source_change_event(struct coda_ctx * ctx)1719 static void coda_queue_source_change_event(struct coda_ctx *ctx)
1720 {
1721 static const struct v4l2_event source_change_event = {
1722 .type = V4L2_EVENT_SOURCE_CHANGE,
1723 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
1724 };
1725
1726 v4l2_event_queue_fh(&ctx->fh, &source_change_event);
1727 }
1728
coda_buf_queue(struct vb2_buffer * vb)1729 static void coda_buf_queue(struct vb2_buffer *vb)
1730 {
1731 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1732 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1733 struct vb2_queue *vq = vb->vb2_queue;
1734 struct coda_q_data *q_data;
1735
1736 q_data = get_q_data(ctx, vb->vb2_queue->type);
1737
1738 /*
1739 * In the decoder case, immediately try to copy the buffer into the
1740 * bitstream ringbuffer and mark it as ready to be dequeued.
1741 */
1742 if (ctx->bitstream.size && vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1743 /*
1744 * For backwards compatibility, queuing an empty buffer marks
1745 * the stream end
1746 */
1747 if (vb2_get_plane_payload(vb, 0) == 0)
1748 coda_bit_stream_end_flag(ctx);
1749
1750 if (q_data->fourcc == V4L2_PIX_FMT_H264) {
1751 /*
1752 * Unless already done, try to obtain profile_idc and
1753 * level_idc from the SPS header. This allows to decide
1754 * whether to enable reordering during sequence
1755 * initialization.
1756 */
1757 if (!ctx->params.h264_profile_idc) {
1758 coda_sps_parse_profile(ctx, vb);
1759 coda_update_profile_level_ctrls(ctx,
1760 ctx->params.h264_profile_idc,
1761 ctx->params.h264_level_idc);
1762 }
1763 }
1764
1765 mutex_lock(&ctx->bitstream_mutex);
1766 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
1767 if (vb2_is_streaming(vb->vb2_queue))
1768 /* This set buf->sequence = ctx->qsequence++ */
1769 coda_fill_bitstream(ctx, NULL);
1770 mutex_unlock(&ctx->bitstream_mutex);
1771
1772 if (!ctx->initialized) {
1773 /*
1774 * Run sequence initialization in case the queued
1775 * buffer contained headers.
1776 */
1777 if (vb2_is_streaming(vb->vb2_queue) &&
1778 ctx->ops->seq_init_work) {
1779 queue_work(ctx->dev->workqueue,
1780 &ctx->seq_init_work);
1781 flush_work(&ctx->seq_init_work);
1782 }
1783
1784 if (ctx->initialized)
1785 coda_queue_source_change_event(ctx);
1786 }
1787 } else {
1788 if (ctx->inst_type == CODA_INST_ENCODER &&
1789 vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1790 vbuf->sequence = ctx->qsequence++;
1791 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
1792 }
1793 }
1794
coda_alloc_aux_buf(struct coda_dev * dev,struct coda_aux_buf * buf,size_t size,const char * name,struct dentry * parent)1795 int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
1796 size_t size, const char *name, struct dentry *parent)
1797 {
1798 buf->vaddr = dma_alloc_coherent(dev->dev, size, &buf->paddr,
1799 GFP_KERNEL);
1800 if (!buf->vaddr) {
1801 v4l2_err(&dev->v4l2_dev,
1802 "Failed to allocate %s buffer of size %zu\n",
1803 name, size);
1804 return -ENOMEM;
1805 }
1806
1807 buf->size = size;
1808
1809 if (name && parent) {
1810 buf->blob.data = buf->vaddr;
1811 buf->blob.size = size;
1812 buf->dentry = debugfs_create_blob(name, 0644, parent,
1813 &buf->blob);
1814 if (!buf->dentry)
1815 dev_warn(dev->dev,
1816 "failed to create debugfs entry %s\n", name);
1817 }
1818
1819 return 0;
1820 }
1821
coda_free_aux_buf(struct coda_dev * dev,struct coda_aux_buf * buf)1822 void coda_free_aux_buf(struct coda_dev *dev,
1823 struct coda_aux_buf *buf)
1824 {
1825 if (buf->vaddr) {
1826 dma_free_coherent(dev->dev, buf->size, buf->vaddr, buf->paddr);
1827 buf->vaddr = NULL;
1828 buf->size = 0;
1829 debugfs_remove(buf->dentry);
1830 buf->dentry = NULL;
1831 }
1832 }
1833
coda_start_streaming(struct vb2_queue * q,unsigned int count)1834 static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
1835 {
1836 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1837 struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev;
1838 struct coda_q_data *q_data_src, *q_data_dst;
1839 struct v4l2_m2m_buffer *m2m_buf, *tmp;
1840 struct vb2_v4l2_buffer *buf;
1841 struct list_head list;
1842 int ret = 0;
1843
1844 if (count < 1)
1845 return -EINVAL;
1846
1847 coda_dbg(1, ctx, "start streaming %s\n", v4l2_type_names[q->type]);
1848
1849 INIT_LIST_HEAD(&list);
1850
1851 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1852 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1853 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1854 /* copy the buffers that were queued before streamon */
1855 mutex_lock(&ctx->bitstream_mutex);
1856 coda_fill_bitstream(ctx, &list);
1857 mutex_unlock(&ctx->bitstream_mutex);
1858
1859 if (ctx->dev->devtype->product != CODA_960 &&
1860 coda_get_bitstream_payload(ctx) < 512) {
1861 v4l2_err(v4l2_dev, "start payload < 512\n");
1862 ret = -EINVAL;
1863 goto err;
1864 }
1865
1866 if (!ctx->initialized) {
1867 /* Run sequence initialization */
1868 if (ctx->ops->seq_init_work) {
1869 queue_work(ctx->dev->workqueue,
1870 &ctx->seq_init_work);
1871 flush_work(&ctx->seq_init_work);
1872 }
1873 }
1874 }
1875
1876 ctx->streamon_out = 1;
1877 } else {
1878 ctx->streamon_cap = 1;
1879 }
1880
1881 /* Don't start the coda unless both queues are on */
1882 if (!(ctx->streamon_out && ctx->streamon_cap))
1883 goto out;
1884
1885 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1886 if ((q_data_src->rect.width != q_data_dst->width &&
1887 round_up(q_data_src->rect.width, 16) != q_data_dst->width) ||
1888 (q_data_src->rect.height != q_data_dst->height &&
1889 round_up(q_data_src->rect.height, 16) != q_data_dst->height)) {
1890 v4l2_err(v4l2_dev, "can't convert %dx%d to %dx%d\n",
1891 q_data_src->rect.width, q_data_src->rect.height,
1892 q_data_dst->width, q_data_dst->height);
1893 ret = -EINVAL;
1894 goto err;
1895 }
1896
1897 /* Allow BIT decoder device_run with no new buffers queued */
1898 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
1899 v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true);
1900
1901 ctx->gopcounter = ctx->params.gop_size - 1;
1902
1903 if (q_data_dst->fourcc == V4L2_PIX_FMT_JPEG)
1904 ctx->params.gop_size = 1;
1905 ctx->gopcounter = ctx->params.gop_size - 1;
1906
1907 ret = ctx->ops->start_streaming(ctx);
1908 if (ctx->inst_type == CODA_INST_DECODER) {
1909 if (ret == -EAGAIN)
1910 goto out;
1911 }
1912 if (ret < 0)
1913 goto err;
1914
1915 out:
1916 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1917 list_for_each_entry_safe(m2m_buf, tmp, &list, list) {
1918 list_del(&m2m_buf->list);
1919 v4l2_m2m_buf_done(&m2m_buf->vb, VB2_BUF_STATE_DONE);
1920 }
1921 }
1922 return 0;
1923
1924 err:
1925 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1926 list_for_each_entry_safe(m2m_buf, tmp, &list, list) {
1927 list_del(&m2m_buf->list);
1928 v4l2_m2m_buf_done(&m2m_buf->vb, VB2_BUF_STATE_QUEUED);
1929 }
1930 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1931 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1932 } else {
1933 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1934 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1935 }
1936 return ret;
1937 }
1938
coda_stop_streaming(struct vb2_queue * q)1939 static void coda_stop_streaming(struct vb2_queue *q)
1940 {
1941 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1942 struct coda_dev *dev = ctx->dev;
1943 struct vb2_v4l2_buffer *buf;
1944 bool stop;
1945
1946 stop = ctx->streamon_out && ctx->streamon_cap;
1947
1948 coda_dbg(1, ctx, "stop streaming %s\n", v4l2_type_names[q->type]);
1949
1950 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1951 ctx->streamon_out = 0;
1952
1953 coda_bit_stream_end_flag(ctx);
1954
1955 ctx->qsequence = 0;
1956
1957 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1958 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1959 } else {
1960 ctx->streamon_cap = 0;
1961
1962 ctx->osequence = 0;
1963 ctx->sequence_offset = 0;
1964
1965 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1966 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1967 }
1968
1969 if (stop) {
1970 struct coda_buffer_meta *meta;
1971
1972 if (ctx->ops->seq_end_work) {
1973 queue_work(dev->workqueue, &ctx->seq_end_work);
1974 flush_work(&ctx->seq_end_work);
1975 }
1976 spin_lock(&ctx->buffer_meta_lock);
1977 while (!list_empty(&ctx->buffer_meta_list)) {
1978 meta = list_first_entry(&ctx->buffer_meta_list,
1979 struct coda_buffer_meta, list);
1980 list_del(&meta->list);
1981 kfree(meta);
1982 }
1983 ctx->num_metas = 0;
1984 spin_unlock(&ctx->buffer_meta_lock);
1985 kfifo_init(&ctx->bitstream_fifo,
1986 ctx->bitstream.vaddr, ctx->bitstream.size);
1987 ctx->runcounter = 0;
1988 ctx->aborting = 0;
1989 ctx->hold = false;
1990 }
1991
1992 if (!ctx->streamon_out && !ctx->streamon_cap)
1993 ctx->bit_stream_param &= ~CODA_BIT_STREAM_END_FLAG;
1994 }
1995
1996 static const struct vb2_ops coda_qops = {
1997 .queue_setup = coda_queue_setup,
1998 .buf_prepare = coda_buf_prepare,
1999 .buf_queue = coda_buf_queue,
2000 .start_streaming = coda_start_streaming,
2001 .stop_streaming = coda_stop_streaming,
2002 .wait_prepare = vb2_ops_wait_prepare,
2003 .wait_finish = vb2_ops_wait_finish,
2004 };
2005
coda_s_ctrl(struct v4l2_ctrl * ctrl)2006 static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
2007 {
2008 const char * const *val_names = v4l2_ctrl_get_menu(ctrl->id);
2009 struct coda_ctx *ctx =
2010 container_of(ctrl->handler, struct coda_ctx, ctrls);
2011
2012 if (val_names)
2013 coda_dbg(2, ctx, "s_ctrl: id = 0x%x, name = \"%s\", val = %d (\"%s\")\n",
2014 ctrl->id, ctrl->name, ctrl->val, val_names[ctrl->val]);
2015 else
2016 coda_dbg(2, ctx, "s_ctrl: id = 0x%x, name = \"%s\", val = %d\n",
2017 ctrl->id, ctrl->name, ctrl->val);
2018
2019 switch (ctrl->id) {
2020 case V4L2_CID_HFLIP:
2021 if (ctrl->val)
2022 ctx->params.rot_mode |= CODA_MIR_HOR;
2023 else
2024 ctx->params.rot_mode &= ~CODA_MIR_HOR;
2025 break;
2026 case V4L2_CID_VFLIP:
2027 if (ctrl->val)
2028 ctx->params.rot_mode |= CODA_MIR_VER;
2029 else
2030 ctx->params.rot_mode &= ~CODA_MIR_VER;
2031 break;
2032 case V4L2_CID_MPEG_VIDEO_BITRATE:
2033 ctx->params.bitrate = ctrl->val / 1000;
2034 ctx->params.bitrate_changed = true;
2035 break;
2036 case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
2037 ctx->params.gop_size = ctrl->val;
2038 break;
2039 case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
2040 ctx->params.h264_intra_qp = ctrl->val;
2041 ctx->params.h264_intra_qp_changed = true;
2042 break;
2043 case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
2044 ctx->params.h264_inter_qp = ctrl->val;
2045 break;
2046 case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
2047 ctx->params.h264_min_qp = ctrl->val;
2048 break;
2049 case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
2050 ctx->params.h264_max_qp = ctrl->val;
2051 break;
2052 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA:
2053 ctx->params.h264_slice_alpha_c0_offset_div2 = ctrl->val;
2054 break;
2055 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA:
2056 ctx->params.h264_slice_beta_offset_div2 = ctrl->val;
2057 break;
2058 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
2059 ctx->params.h264_disable_deblocking_filter_idc = ctrl->val;
2060 break;
2061 case V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION:
2062 ctx->params.h264_constrained_intra_pred_flag = ctrl->val;
2063 break;
2064 case V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET:
2065 ctx->params.h264_chroma_qp_index_offset = ctrl->val;
2066 break;
2067 case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
2068 /* TODO: switch between baseline and constrained baseline */
2069 if (ctx->inst_type == CODA_INST_ENCODER)
2070 ctx->params.h264_profile_idc = 66;
2071 break;
2072 case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
2073 /* nothing to do, this is set by the encoder */
2074 break;
2075 case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
2076 ctx->params.mpeg4_intra_qp = ctrl->val;
2077 break;
2078 case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
2079 ctx->params.mpeg4_inter_qp = ctrl->val;
2080 break;
2081 case V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE:
2082 case V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL:
2083 case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE:
2084 case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL:
2085 /* nothing to do, these are fixed */
2086 break;
2087 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
2088 ctx->params.slice_mode = ctrl->val;
2089 ctx->params.slice_mode_changed = true;
2090 break;
2091 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
2092 ctx->params.slice_max_mb = ctrl->val;
2093 ctx->params.slice_mode_changed = true;
2094 break;
2095 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
2096 ctx->params.slice_max_bits = ctrl->val * 8;
2097 ctx->params.slice_mode_changed = true;
2098 break;
2099 case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
2100 break;
2101 case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB:
2102 ctx->params.intra_refresh = ctrl->val;
2103 ctx->params.intra_refresh_changed = true;
2104 break;
2105 case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
2106 ctx->params.force_ipicture = true;
2107 break;
2108 case V4L2_CID_JPEG_COMPRESSION_QUALITY:
2109 coda_set_jpeg_compression_quality(ctx, ctrl->val);
2110 break;
2111 case V4L2_CID_JPEG_RESTART_INTERVAL:
2112 ctx->params.jpeg_restart_interval = ctrl->val;
2113 break;
2114 case V4L2_CID_MPEG_VIDEO_VBV_DELAY:
2115 ctx->params.vbv_delay = ctrl->val;
2116 break;
2117 case V4L2_CID_MPEG_VIDEO_VBV_SIZE:
2118 ctx->params.vbv_size = min(ctrl->val * 8192, 0x7fffffff);
2119 break;
2120 default:
2121 coda_dbg(1, ctx, "Invalid control, id=%d, val=%d\n",
2122 ctrl->id, ctrl->val);
2123 return -EINVAL;
2124 }
2125
2126 return 0;
2127 }
2128
2129 static const struct v4l2_ctrl_ops coda_ctrl_ops = {
2130 .s_ctrl = coda_s_ctrl,
2131 };
2132
coda_encode_ctrls(struct coda_ctx * ctx)2133 static void coda_encode_ctrls(struct coda_ctx *ctx)
2134 {
2135 int max_gop_size = (ctx->dev->devtype->product == CODA_DX6) ? 60 : 99;
2136
2137 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2138 V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1000, 0);
2139 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2140 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 0, max_gop_size, 1, 16);
2141 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2142 V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 0, 51, 1, 25);
2143 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2144 V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 0, 51, 1, 25);
2145 if (ctx->dev->devtype->product != CODA_960) {
2146 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2147 V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 51, 1, 12);
2148 }
2149 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2150 V4L2_CID_MPEG_VIDEO_H264_MAX_QP, 0, 51, 1, 51);
2151 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2152 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA, -6, 6, 1, 0);
2153 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2154 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA, -6, 6, 1, 0);
2155 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2156 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
2157 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY,
2158 0x0, V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
2159 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2160 V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION, 0, 1, 1,
2161 0);
2162 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2163 V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET, -12, 12, 1, 0);
2164 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2165 V4L2_CID_MPEG_VIDEO_H264_PROFILE,
2166 V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE, 0x0,
2167 V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE);
2168 if (ctx->dev->devtype->product == CODA_HX4 ||
2169 ctx->dev->devtype->product == CODA_7541) {
2170 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2171 V4L2_CID_MPEG_VIDEO_H264_LEVEL,
2172 V4L2_MPEG_VIDEO_H264_LEVEL_3_1,
2173 ~((1 << V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
2174 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
2175 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_1)),
2176 V4L2_MPEG_VIDEO_H264_LEVEL_3_1);
2177 }
2178 if (ctx->dev->devtype->product == CODA_960) {
2179 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2180 V4L2_CID_MPEG_VIDEO_H264_LEVEL,
2181 V4L2_MPEG_VIDEO_H264_LEVEL_4_0,
2182 ~((1 << V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
2183 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
2184 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_1) |
2185 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_2) |
2186 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_4_0)),
2187 V4L2_MPEG_VIDEO_H264_LEVEL_4_0);
2188 }
2189 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2190 V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
2191 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2192 V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
2193 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2194 V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE,
2195 V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE, 0x0,
2196 V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE);
2197 if (ctx->dev->devtype->product == CODA_HX4 ||
2198 ctx->dev->devtype->product == CODA_7541 ||
2199 ctx->dev->devtype->product == CODA_960) {
2200 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2201 V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL,
2202 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5,
2203 ~(1 << V4L2_MPEG_VIDEO_MPEG4_LEVEL_5),
2204 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5);
2205 }
2206 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2207 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
2208 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_BYTES, 0x0,
2209 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
2210 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2211 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
2212 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2213 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1,
2214 500);
2215 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2216 V4L2_CID_MPEG_VIDEO_HEADER_MODE,
2217 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
2218 (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE),
2219 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
2220 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2221 V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB, 0,
2222 1920 * 1088 / 256, 1, 0);
2223 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2224 V4L2_CID_MPEG_VIDEO_VBV_DELAY, 0, 0x7fff, 1, 0);
2225 /*
2226 * The maximum VBV size value is 0x7fffffff bits,
2227 * one bit less than 262144 KiB
2228 */
2229 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2230 V4L2_CID_MPEG_VIDEO_VBV_SIZE, 0, 262144, 1, 0);
2231 }
2232
coda_jpeg_encode_ctrls(struct coda_ctx * ctx)2233 static void coda_jpeg_encode_ctrls(struct coda_ctx *ctx)
2234 {
2235 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2236 V4L2_CID_JPEG_COMPRESSION_QUALITY, 5, 100, 1, 50);
2237 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2238 V4L2_CID_JPEG_RESTART_INTERVAL, 0, 100, 1, 0);
2239 }
2240
coda_decode_ctrls(struct coda_ctx * ctx)2241 static void coda_decode_ctrls(struct coda_ctx *ctx)
2242 {
2243 u8 max;
2244
2245 ctx->h264_profile_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2246 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_H264_PROFILE,
2247 V4L2_MPEG_VIDEO_H264_PROFILE_HIGH,
2248 ~((1 << V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE) |
2249 (1 << V4L2_MPEG_VIDEO_H264_PROFILE_MAIN) |
2250 (1 << V4L2_MPEG_VIDEO_H264_PROFILE_HIGH)),
2251 V4L2_MPEG_VIDEO_H264_PROFILE_HIGH);
2252 if (ctx->h264_profile_ctrl)
2253 ctx->h264_profile_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2254
2255 if (ctx->dev->devtype->product == CODA_HX4 ||
2256 ctx->dev->devtype->product == CODA_7541)
2257 max = V4L2_MPEG_VIDEO_H264_LEVEL_4_0;
2258 else if (ctx->dev->devtype->product == CODA_960)
2259 max = V4L2_MPEG_VIDEO_H264_LEVEL_4_1;
2260 else
2261 return;
2262 ctx->h264_level_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2263 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_H264_LEVEL, max, 0, max);
2264 if (ctx->h264_level_ctrl)
2265 ctx->h264_level_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2266
2267 ctx->mpeg2_profile_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2268 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE,
2269 V4L2_MPEG_VIDEO_MPEG2_PROFILE_HIGH, 0,
2270 V4L2_MPEG_VIDEO_MPEG2_PROFILE_HIGH);
2271 if (ctx->mpeg2_profile_ctrl)
2272 ctx->mpeg2_profile_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2273
2274 ctx->mpeg2_level_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2275 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL,
2276 V4L2_MPEG_VIDEO_MPEG2_LEVEL_HIGH, 0,
2277 V4L2_MPEG_VIDEO_MPEG2_LEVEL_HIGH);
2278 if (ctx->mpeg2_level_ctrl)
2279 ctx->mpeg2_level_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2280
2281 ctx->mpeg4_profile_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2282 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE,
2283 V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY, 0,
2284 V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY);
2285 if (ctx->mpeg4_profile_ctrl)
2286 ctx->mpeg4_profile_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2287
2288 ctx->mpeg4_level_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2289 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL,
2290 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5, 0,
2291 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5);
2292 if (ctx->mpeg4_level_ctrl)
2293 ctx->mpeg4_level_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2294 }
2295
coda_ctrls_setup(struct coda_ctx * ctx)2296 static int coda_ctrls_setup(struct coda_ctx *ctx)
2297 {
2298 v4l2_ctrl_handler_init(&ctx->ctrls, 2);
2299
2300 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2301 V4L2_CID_HFLIP, 0, 1, 1, 0);
2302 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2303 V4L2_CID_VFLIP, 0, 1, 1, 0);
2304 if (ctx->inst_type == CODA_INST_ENCODER) {
2305 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2306 V4L2_CID_MIN_BUFFERS_FOR_OUTPUT,
2307 1, 1, 1, 1);
2308 if (ctx->cvd->dst_formats[0] == V4L2_PIX_FMT_JPEG)
2309 coda_jpeg_encode_ctrls(ctx);
2310 else
2311 coda_encode_ctrls(ctx);
2312 } else {
2313 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2314 V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
2315 1, 1, 1, 1);
2316 if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_H264)
2317 coda_decode_ctrls(ctx);
2318 }
2319
2320 if (ctx->ctrls.error) {
2321 v4l2_err(&ctx->dev->v4l2_dev,
2322 "control initialization error (%d)",
2323 ctx->ctrls.error);
2324 return -EINVAL;
2325 }
2326
2327 return v4l2_ctrl_handler_setup(&ctx->ctrls);
2328 }
2329
coda_queue_init(struct coda_ctx * ctx,struct vb2_queue * vq)2330 static int coda_queue_init(struct coda_ctx *ctx, struct vb2_queue *vq)
2331 {
2332 vq->drv_priv = ctx;
2333 vq->ops = &coda_qops;
2334 vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
2335 vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
2336 vq->lock = &ctx->dev->dev_mutex;
2337 /* One way to indicate end-of-stream for coda is to set the
2338 * bytesused == 0. However by default videobuf2 handles bytesused
2339 * equal to 0 as a special case and changes its value to the size
2340 * of the buffer. Set the allow_zero_bytesused flag, so
2341 * that videobuf2 will keep the value of bytesused intact.
2342 */
2343 vq->allow_zero_bytesused = 1;
2344 /*
2345 * We might be fine with no buffers on some of the queues, but that
2346 * would need to be reflected in job_ready(). Currently we expect all
2347 * queues to have at least one buffer queued.
2348 */
2349 vq->min_buffers_needed = 1;
2350 vq->dev = ctx->dev->dev;
2351
2352 return vb2_queue_init(vq);
2353 }
2354
coda_encoder_queue_init(void * priv,struct vb2_queue * src_vq,struct vb2_queue * dst_vq)2355 int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
2356 struct vb2_queue *dst_vq)
2357 {
2358 int ret;
2359
2360 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2361 src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2362 src_vq->mem_ops = &vb2_dma_contig_memops;
2363
2364 ret = coda_queue_init(priv, src_vq);
2365 if (ret)
2366 return ret;
2367
2368 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2369 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2370 dst_vq->mem_ops = &vb2_dma_contig_memops;
2371
2372 return coda_queue_init(priv, dst_vq);
2373 }
2374
coda_decoder_queue_init(void * priv,struct vb2_queue * src_vq,struct vb2_queue * dst_vq)2375 int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
2376 struct vb2_queue *dst_vq)
2377 {
2378 int ret;
2379
2380 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2381 src_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
2382 src_vq->mem_ops = &vb2_vmalloc_memops;
2383
2384 ret = coda_queue_init(priv, src_vq);
2385 if (ret)
2386 return ret;
2387
2388 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2389 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2390 dst_vq->mem_ops = &vb2_dma_contig_memops;
2391
2392 return coda_queue_init(priv, dst_vq);
2393 }
2394
2395 /*
2396 * File operations
2397 */
2398
coda_open(struct file * file)2399 static int coda_open(struct file *file)
2400 {
2401 struct video_device *vdev = video_devdata(file);
2402 struct coda_dev *dev = video_get_drvdata(vdev);
2403 struct coda_ctx *ctx;
2404 unsigned int max = ~0;
2405 char *name;
2406 int ret;
2407 int idx;
2408
2409 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
2410 if (!ctx)
2411 return -ENOMEM;
2412
2413 if (dev->devtype->product == CODA_DX6)
2414 max = CODADX6_MAX_INSTANCES - 1;
2415 idx = ida_alloc_max(&dev->ida, max, GFP_KERNEL);
2416 if (idx < 0) {
2417 ret = idx;
2418 goto err_coda_max;
2419 }
2420
2421 name = kasprintf(GFP_KERNEL, "context%d", idx);
2422 if (!name) {
2423 ret = -ENOMEM;
2424 goto err_coda_name_init;
2425 }
2426
2427 ctx->debugfs_entry = debugfs_create_dir(name, dev->debugfs_root);
2428 kfree(name);
2429
2430 ctx->cvd = to_coda_video_device(vdev);
2431 ctx->inst_type = ctx->cvd->type;
2432 ctx->ops = ctx->cvd->ops;
2433 ctx->use_bit = !ctx->cvd->direct;
2434 init_completion(&ctx->completion);
2435 INIT_WORK(&ctx->pic_run_work, coda_pic_run_work);
2436 if (ctx->ops->seq_init_work)
2437 INIT_WORK(&ctx->seq_init_work, ctx->ops->seq_init_work);
2438 if (ctx->ops->seq_end_work)
2439 INIT_WORK(&ctx->seq_end_work, ctx->ops->seq_end_work);
2440 v4l2_fh_init(&ctx->fh, video_devdata(file));
2441 file->private_data = &ctx->fh;
2442 v4l2_fh_add(&ctx->fh);
2443 ctx->dev = dev;
2444 ctx->idx = idx;
2445
2446 coda_dbg(1, ctx, "open instance (%p)\n", ctx);
2447
2448 switch (dev->devtype->product) {
2449 case CODA_960:
2450 /*
2451 * Enabling the BWB when decoding can hang the firmware with
2452 * certain streams. The issue was tracked as ENGR00293425 by
2453 * Freescale. As a workaround, disable BWB for all decoders.
2454 * The enable_bwb module parameter allows to override this.
2455 */
2456 if (enable_bwb || ctx->inst_type == CODA_INST_ENCODER)
2457 ctx->frame_mem_ctrl = CODA9_FRAME_ENABLE_BWB;
2458 /* fallthrough */
2459 case CODA_HX4:
2460 case CODA_7541:
2461 ctx->reg_idx = 0;
2462 break;
2463 default:
2464 ctx->reg_idx = idx;
2465 }
2466 if (ctx->dev->vdoa && !disable_vdoa) {
2467 ctx->vdoa = vdoa_context_create(dev->vdoa);
2468 if (!ctx->vdoa)
2469 v4l2_warn(&dev->v4l2_dev,
2470 "Failed to create vdoa context: not using vdoa");
2471 }
2472 ctx->use_vdoa = false;
2473
2474 /* Power up and upload firmware if necessary */
2475 ret = pm_runtime_get_sync(dev->dev);
2476 if (ret < 0) {
2477 v4l2_err(&dev->v4l2_dev, "failed to power up: %d\n", ret);
2478 goto err_pm_get;
2479 }
2480
2481 ret = clk_prepare_enable(dev->clk_per);
2482 if (ret)
2483 goto err_clk_per;
2484
2485 ret = clk_prepare_enable(dev->clk_ahb);
2486 if (ret)
2487 goto err_clk_ahb;
2488
2489 set_default_params(ctx);
2490 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
2491 ctx->ops->queue_init);
2492 if (IS_ERR(ctx->fh.m2m_ctx)) {
2493 ret = PTR_ERR(ctx->fh.m2m_ctx);
2494
2495 v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
2496 __func__, ret);
2497 goto err_ctx_init;
2498 }
2499
2500 ret = coda_ctrls_setup(ctx);
2501 if (ret) {
2502 v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
2503 goto err_ctrls_setup;
2504 }
2505
2506 ctx->fh.ctrl_handler = &ctx->ctrls;
2507
2508 mutex_init(&ctx->bitstream_mutex);
2509 mutex_init(&ctx->buffer_mutex);
2510 mutex_init(&ctx->wakeup_mutex);
2511 INIT_LIST_HEAD(&ctx->buffer_meta_list);
2512 spin_lock_init(&ctx->buffer_meta_lock);
2513
2514 return 0;
2515
2516 err_ctrls_setup:
2517 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
2518 err_ctx_init:
2519 clk_disable_unprepare(dev->clk_ahb);
2520 err_clk_ahb:
2521 clk_disable_unprepare(dev->clk_per);
2522 err_clk_per:
2523 pm_runtime_put_sync(dev->dev);
2524 err_pm_get:
2525 v4l2_fh_del(&ctx->fh);
2526 v4l2_fh_exit(&ctx->fh);
2527 err_coda_name_init:
2528 ida_free(&dev->ida, ctx->idx);
2529 err_coda_max:
2530 kfree(ctx);
2531 return ret;
2532 }
2533
coda_release(struct file * file)2534 static int coda_release(struct file *file)
2535 {
2536 struct coda_dev *dev = video_drvdata(file);
2537 struct coda_ctx *ctx = fh_to_ctx(file->private_data);
2538
2539 coda_dbg(1, ctx, "release instance (%p)\n", ctx);
2540
2541 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
2542 coda_bit_stream_end_flag(ctx);
2543
2544 /* If this instance is running, call .job_abort and wait for it to end */
2545 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
2546
2547 if (ctx->vdoa)
2548 vdoa_context_destroy(ctx->vdoa);
2549
2550 /* In case the instance was not running, we still need to call SEQ_END */
2551 if (ctx->ops->seq_end_work) {
2552 queue_work(dev->workqueue, &ctx->seq_end_work);
2553 flush_work(&ctx->seq_end_work);
2554 }
2555
2556 if (ctx->dev->devtype->product == CODA_DX6)
2557 coda_free_aux_buf(dev, &ctx->workbuf);
2558
2559 v4l2_ctrl_handler_free(&ctx->ctrls);
2560 clk_disable_unprepare(dev->clk_ahb);
2561 clk_disable_unprepare(dev->clk_per);
2562 pm_runtime_put_sync(dev->dev);
2563 v4l2_fh_del(&ctx->fh);
2564 v4l2_fh_exit(&ctx->fh);
2565 ida_free(&dev->ida, ctx->idx);
2566 if (ctx->ops->release)
2567 ctx->ops->release(ctx);
2568 debugfs_remove_recursive(ctx->debugfs_entry);
2569 kfree(ctx);
2570
2571 return 0;
2572 }
2573
2574 static const struct v4l2_file_operations coda_fops = {
2575 .owner = THIS_MODULE,
2576 .open = coda_open,
2577 .release = coda_release,
2578 .poll = v4l2_m2m_fop_poll,
2579 .unlocked_ioctl = video_ioctl2,
2580 .mmap = v4l2_m2m_fop_mmap,
2581 };
2582
coda_hw_init(struct coda_dev * dev)2583 static int coda_hw_init(struct coda_dev *dev)
2584 {
2585 u32 data;
2586 u16 *p;
2587 int i, ret;
2588
2589 ret = clk_prepare_enable(dev->clk_per);
2590 if (ret)
2591 goto err_clk_per;
2592
2593 ret = clk_prepare_enable(dev->clk_ahb);
2594 if (ret)
2595 goto err_clk_ahb;
2596
2597 reset_control_reset(dev->rstc);
2598
2599 /*
2600 * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
2601 * The 16-bit chars in the code buffer are in memory access
2602 * order, re-sort them to CODA order for register download.
2603 * Data in this SRAM survives a reboot.
2604 */
2605 p = (u16 *)dev->codebuf.vaddr;
2606 if (dev->devtype->product == CODA_DX6) {
2607 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2608 data = CODA_DOWN_ADDRESS_SET(i) |
2609 CODA_DOWN_DATA_SET(p[i ^ 1]);
2610 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2611 }
2612 } else {
2613 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2614 data = CODA_DOWN_ADDRESS_SET(i) |
2615 CODA_DOWN_DATA_SET(p[round_down(i, 4) +
2616 3 - (i % 4)]);
2617 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2618 }
2619 }
2620
2621 /* Clear registers */
2622 for (i = 0; i < 64; i++)
2623 coda_write(dev, 0, CODA_REG_BIT_CODE_BUF_ADDR + i * 4);
2624
2625 /* Tell the BIT where to find everything it needs */
2626 if (dev->devtype->product == CODA_960 ||
2627 dev->devtype->product == CODA_7541 ||
2628 dev->devtype->product == CODA_HX4) {
2629 coda_write(dev, dev->tempbuf.paddr,
2630 CODA_REG_BIT_TEMP_BUF_ADDR);
2631 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
2632 } else {
2633 coda_write(dev, dev->workbuf.paddr,
2634 CODA_REG_BIT_WORK_BUF_ADDR);
2635 }
2636 coda_write(dev, dev->codebuf.paddr,
2637 CODA_REG_BIT_CODE_BUF_ADDR);
2638 coda_write(dev, 0, CODA_REG_BIT_CODE_RUN);
2639
2640 /* Set default values */
2641 switch (dev->devtype->product) {
2642 case CODA_DX6:
2643 coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH,
2644 CODA_REG_BIT_STREAM_CTRL);
2645 break;
2646 default:
2647 coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH,
2648 CODA_REG_BIT_STREAM_CTRL);
2649 }
2650 if (dev->devtype->product == CODA_960)
2651 coda_write(dev, CODA9_FRAME_ENABLE_BWB,
2652 CODA_REG_BIT_FRAME_MEM_CTRL);
2653 else
2654 coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL);
2655
2656 if (dev->devtype->product != CODA_DX6)
2657 coda_write(dev, 0, CODA7_REG_BIT_AXI_SRAM_USE);
2658
2659 coda_write(dev, CODA_INT_INTERRUPT_ENABLE,
2660 CODA_REG_BIT_INT_ENABLE);
2661
2662 /* Reset VPU and start processor */
2663 data = coda_read(dev, CODA_REG_BIT_CODE_RESET);
2664 data |= CODA_REG_RESET_ENABLE;
2665 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2666 udelay(10);
2667 data &= ~CODA_REG_RESET_ENABLE;
2668 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2669 coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
2670
2671 clk_disable_unprepare(dev->clk_ahb);
2672 clk_disable_unprepare(dev->clk_per);
2673
2674 return 0;
2675
2676 err_clk_ahb:
2677 clk_disable_unprepare(dev->clk_per);
2678 err_clk_per:
2679 return ret;
2680 }
2681
coda_register_device(struct coda_dev * dev,int i)2682 static int coda_register_device(struct coda_dev *dev, int i)
2683 {
2684 struct video_device *vfd = &dev->vfd[i];
2685 enum coda_inst_type type;
2686 int ret;
2687
2688 if (i >= dev->devtype->num_vdevs)
2689 return -EINVAL;
2690 type = dev->devtype->vdevs[i]->type;
2691
2692 strscpy(vfd->name, dev->devtype->vdevs[i]->name, sizeof(vfd->name));
2693 vfd->fops = &coda_fops;
2694 vfd->ioctl_ops = &coda_ioctl_ops;
2695 vfd->release = video_device_release_empty,
2696 vfd->lock = &dev->dev_mutex;
2697 vfd->v4l2_dev = &dev->v4l2_dev;
2698 vfd->vfl_dir = VFL_DIR_M2M;
2699 vfd->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
2700 video_set_drvdata(vfd, dev);
2701
2702 /* Not applicable, use the selection API instead */
2703 v4l2_disable_ioctl(vfd, VIDIOC_CROPCAP);
2704 v4l2_disable_ioctl(vfd, VIDIOC_G_CROP);
2705 v4l2_disable_ioctl(vfd, VIDIOC_S_CROP);
2706
2707 ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
2708 if (!ret)
2709 v4l2_info(&dev->v4l2_dev, "%s registered as %s\n",
2710 type == CODA_INST_ENCODER ? "encoder" : "decoder",
2711 video_device_node_name(vfd));
2712 return ret;
2713 }
2714
coda_copy_firmware(struct coda_dev * dev,const u8 * const buf,size_t size)2715 static void coda_copy_firmware(struct coda_dev *dev, const u8 * const buf,
2716 size_t size)
2717 {
2718 u32 *src = (u32 *)buf;
2719
2720 /* Check if the firmware has a 16-byte Freescale header, skip it */
2721 if (buf[0] == 'M' && buf[1] == 'X')
2722 src += 4;
2723 /*
2724 * Check whether the firmware is in native order or pre-reordered for
2725 * memory access. The first instruction opcode always is 0xe40e.
2726 */
2727 if (__le16_to_cpup((__le16 *)src) == 0xe40e) {
2728 u32 *dst = dev->codebuf.vaddr;
2729 int i;
2730
2731 /* Firmware in native order, reorder while copying */
2732 if (dev->devtype->product == CODA_DX6) {
2733 for (i = 0; i < (size - 16) / 4; i++)
2734 dst[i] = (src[i] << 16) | (src[i] >> 16);
2735 } else {
2736 for (i = 0; i < (size - 16) / 4; i += 2) {
2737 dst[i] = (src[i + 1] << 16) | (src[i + 1] >> 16);
2738 dst[i + 1] = (src[i] << 16) | (src[i] >> 16);
2739 }
2740 }
2741 } else {
2742 /* Copy the already reordered firmware image */
2743 memcpy(dev->codebuf.vaddr, src, size);
2744 }
2745 }
2746
2747 static void coda_fw_callback(const struct firmware *fw, void *context);
2748
coda_firmware_request(struct coda_dev * dev)2749 static int coda_firmware_request(struct coda_dev *dev)
2750 {
2751 char *fw;
2752
2753 if (dev->firmware >= ARRAY_SIZE(dev->devtype->firmware))
2754 return -EINVAL;
2755
2756 fw = dev->devtype->firmware[dev->firmware];
2757
2758 dev_dbg(dev->dev, "requesting firmware '%s' for %s\n", fw,
2759 coda_product_name(dev->devtype->product));
2760
2761 return request_firmware_nowait(THIS_MODULE, true, fw, dev->dev,
2762 GFP_KERNEL, dev, coda_fw_callback);
2763 }
2764
coda_fw_callback(const struct firmware * fw,void * context)2765 static void coda_fw_callback(const struct firmware *fw, void *context)
2766 {
2767 struct coda_dev *dev = context;
2768 int i, ret;
2769
2770 if (!fw) {
2771 dev->firmware++;
2772 ret = coda_firmware_request(dev);
2773 if (ret < 0) {
2774 v4l2_err(&dev->v4l2_dev, "firmware request failed\n");
2775 goto put_pm;
2776 }
2777 return;
2778 }
2779 if (dev->firmware > 0) {
2780 /*
2781 * Since we can't suppress warnings for failed asynchronous
2782 * firmware requests, report that the fallback firmware was
2783 * found.
2784 */
2785 dev_info(dev->dev, "Using fallback firmware %s\n",
2786 dev->devtype->firmware[dev->firmware]);
2787 }
2788
2789 /* allocate auxiliary per-device code buffer for the BIT processor */
2790 ret = coda_alloc_aux_buf(dev, &dev->codebuf, fw->size, "codebuf",
2791 dev->debugfs_root);
2792 if (ret < 0)
2793 goto put_pm;
2794
2795 coda_copy_firmware(dev, fw->data, fw->size);
2796 release_firmware(fw);
2797
2798 ret = coda_hw_init(dev);
2799 if (ret < 0) {
2800 v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
2801 goto put_pm;
2802 }
2803
2804 ret = coda_check_firmware(dev);
2805 if (ret < 0)
2806 goto put_pm;
2807
2808 dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops);
2809 if (IS_ERR(dev->m2m_dev)) {
2810 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
2811 goto put_pm;
2812 }
2813
2814 for (i = 0; i < dev->devtype->num_vdevs; i++) {
2815 ret = coda_register_device(dev, i);
2816 if (ret) {
2817 v4l2_err(&dev->v4l2_dev,
2818 "Failed to register %s video device: %d\n",
2819 dev->devtype->vdevs[i]->name, ret);
2820 goto rel_vfd;
2821 }
2822 }
2823
2824 pm_runtime_put_sync(dev->dev);
2825 return;
2826
2827 rel_vfd:
2828 while (--i >= 0)
2829 video_unregister_device(&dev->vfd[i]);
2830 v4l2_m2m_release(dev->m2m_dev);
2831 put_pm:
2832 pm_runtime_put_sync(dev->dev);
2833 }
2834
2835 enum coda_platform {
2836 CODA_IMX27,
2837 CODA_IMX51,
2838 CODA_IMX53,
2839 CODA_IMX6Q,
2840 CODA_IMX6DL,
2841 };
2842
2843 static const struct coda_devtype coda_devdata[] = {
2844 [CODA_IMX27] = {
2845 .firmware = {
2846 "vpu_fw_imx27_TO2.bin",
2847 "vpu/vpu_fw_imx27_TO2.bin",
2848 "v4l-codadx6-imx27.bin"
2849 },
2850 .product = CODA_DX6,
2851 .codecs = codadx6_codecs,
2852 .num_codecs = ARRAY_SIZE(codadx6_codecs),
2853 .vdevs = codadx6_video_devices,
2854 .num_vdevs = ARRAY_SIZE(codadx6_video_devices),
2855 .workbuf_size = 288 * 1024 + FMO_SLICE_SAVE_BUF_SIZE * 8 * 1024,
2856 .iram_size = 0xb000,
2857 },
2858 [CODA_IMX51] = {
2859 .firmware = {
2860 "vpu_fw_imx51.bin",
2861 "vpu/vpu_fw_imx51.bin",
2862 "v4l-codahx4-imx51.bin"
2863 },
2864 .product = CODA_HX4,
2865 .codecs = codahx4_codecs,
2866 .num_codecs = ARRAY_SIZE(codahx4_codecs),
2867 .vdevs = codahx4_video_devices,
2868 .num_vdevs = ARRAY_SIZE(codahx4_video_devices),
2869 .workbuf_size = 128 * 1024,
2870 .tempbuf_size = 304 * 1024,
2871 .iram_size = 0x14000,
2872 },
2873 [CODA_IMX53] = {
2874 .firmware = {
2875 "vpu_fw_imx53.bin",
2876 "vpu/vpu_fw_imx53.bin",
2877 "v4l-coda7541-imx53.bin"
2878 },
2879 .product = CODA_7541,
2880 .codecs = coda7_codecs,
2881 .num_codecs = ARRAY_SIZE(coda7_codecs),
2882 .vdevs = coda7_video_devices,
2883 .num_vdevs = ARRAY_SIZE(coda7_video_devices),
2884 .workbuf_size = 128 * 1024,
2885 .tempbuf_size = 304 * 1024,
2886 .iram_size = 0x14000,
2887 },
2888 [CODA_IMX6Q] = {
2889 .firmware = {
2890 "vpu_fw_imx6q.bin",
2891 "vpu/vpu_fw_imx6q.bin",
2892 "v4l-coda960-imx6q.bin"
2893 },
2894 .product = CODA_960,
2895 .codecs = coda9_codecs,
2896 .num_codecs = ARRAY_SIZE(coda9_codecs),
2897 .vdevs = coda9_video_devices,
2898 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
2899 .workbuf_size = 80 * 1024,
2900 .tempbuf_size = 204 * 1024,
2901 .iram_size = 0x21000,
2902 },
2903 [CODA_IMX6DL] = {
2904 .firmware = {
2905 "vpu_fw_imx6d.bin",
2906 "vpu/vpu_fw_imx6d.bin",
2907 "v4l-coda960-imx6dl.bin"
2908 },
2909 .product = CODA_960,
2910 .codecs = coda9_codecs,
2911 .num_codecs = ARRAY_SIZE(coda9_codecs),
2912 .vdevs = coda9_video_devices,
2913 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
2914 .workbuf_size = 80 * 1024,
2915 .tempbuf_size = 204 * 1024,
2916 .iram_size = 0x1f000, /* leave 4k for suspend code */
2917 },
2918 };
2919
2920 static const struct platform_device_id coda_platform_ids[] = {
2921 { .name = "coda-imx27", .driver_data = CODA_IMX27 },
2922 { /* sentinel */ }
2923 };
2924 MODULE_DEVICE_TABLE(platform, coda_platform_ids);
2925
2926 #ifdef CONFIG_OF
2927 static const struct of_device_id coda_dt_ids[] = {
2928 { .compatible = "fsl,imx27-vpu", .data = &coda_devdata[CODA_IMX27] },
2929 { .compatible = "fsl,imx51-vpu", .data = &coda_devdata[CODA_IMX51] },
2930 { .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] },
2931 { .compatible = "fsl,imx6q-vpu", .data = &coda_devdata[CODA_IMX6Q] },
2932 { .compatible = "fsl,imx6dl-vpu", .data = &coda_devdata[CODA_IMX6DL] },
2933 { /* sentinel */ }
2934 };
2935 MODULE_DEVICE_TABLE(of, coda_dt_ids);
2936 #endif
2937
coda_probe(struct platform_device * pdev)2938 static int coda_probe(struct platform_device *pdev)
2939 {
2940 const struct of_device_id *of_id =
2941 of_match_device(of_match_ptr(coda_dt_ids), &pdev->dev);
2942 const struct platform_device_id *pdev_id;
2943 struct coda_platform_data *pdata = pdev->dev.platform_data;
2944 struct device_node *np = pdev->dev.of_node;
2945 struct gen_pool *pool;
2946 struct coda_dev *dev;
2947 int ret, irq;
2948
2949 dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
2950 if (!dev)
2951 return -ENOMEM;
2952
2953 pdev_id = of_id ? of_id->data : platform_get_device_id(pdev);
2954
2955 if (of_id)
2956 dev->devtype = of_id->data;
2957 else if (pdev_id)
2958 dev->devtype = &coda_devdata[pdev_id->driver_data];
2959 else
2960 return -EINVAL;
2961
2962 spin_lock_init(&dev->irqlock);
2963
2964 dev->dev = &pdev->dev;
2965 dev->clk_per = devm_clk_get(&pdev->dev, "per");
2966 if (IS_ERR(dev->clk_per)) {
2967 dev_err(&pdev->dev, "Could not get per clock\n");
2968 return PTR_ERR(dev->clk_per);
2969 }
2970
2971 dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
2972 if (IS_ERR(dev->clk_ahb)) {
2973 dev_err(&pdev->dev, "Could not get ahb clock\n");
2974 return PTR_ERR(dev->clk_ahb);
2975 }
2976
2977 /* Get memory for physical registers */
2978 dev->regs_base = devm_platform_ioremap_resource(pdev, 0);
2979 if (IS_ERR(dev->regs_base))
2980 return PTR_ERR(dev->regs_base);
2981
2982 /* IRQ */
2983 irq = platform_get_irq_byname(pdev, "bit");
2984 if (irq < 0)
2985 irq = platform_get_irq(pdev, 0);
2986 if (irq < 0) {
2987 dev_err(&pdev->dev, "failed to get irq resource\n");
2988 return irq;
2989 }
2990
2991 ret = devm_request_irq(&pdev->dev, irq, coda_irq_handler, 0,
2992 dev_name(&pdev->dev), dev);
2993 if (ret < 0) {
2994 dev_err(&pdev->dev, "failed to request irq: %d\n", ret);
2995 return ret;
2996 }
2997
2998 dev->rstc = devm_reset_control_get_optional_exclusive(&pdev->dev,
2999 NULL);
3000 if (IS_ERR(dev->rstc)) {
3001 ret = PTR_ERR(dev->rstc);
3002 dev_err(&pdev->dev, "failed get reset control: %d\n", ret);
3003 return ret;
3004 }
3005
3006 /* Get IRAM pool from device tree or platform data */
3007 pool = of_gen_pool_get(np, "iram", 0);
3008 if (!pool && pdata)
3009 pool = gen_pool_get(pdata->iram_dev, NULL);
3010 if (!pool) {
3011 dev_err(&pdev->dev, "iram pool not available\n");
3012 return -ENOMEM;
3013 }
3014 dev->iram_pool = pool;
3015
3016 /* Get vdoa_data if supported by the platform */
3017 dev->vdoa = coda_get_vdoa_data();
3018 if (PTR_ERR(dev->vdoa) == -EPROBE_DEFER)
3019 return -EPROBE_DEFER;
3020
3021 ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
3022 if (ret)
3023 return ret;
3024
3025 mutex_init(&dev->dev_mutex);
3026 mutex_init(&dev->coda_mutex);
3027 ida_init(&dev->ida);
3028
3029 dev->debugfs_root = debugfs_create_dir("coda", NULL);
3030 if (!dev->debugfs_root)
3031 dev_warn(&pdev->dev, "failed to create debugfs root\n");
3032
3033 /* allocate auxiliary per-device buffers for the BIT processor */
3034 if (dev->devtype->product == CODA_DX6) {
3035 ret = coda_alloc_aux_buf(dev, &dev->workbuf,
3036 dev->devtype->workbuf_size, "workbuf",
3037 dev->debugfs_root);
3038 if (ret < 0)
3039 goto err_v4l2_register;
3040 }
3041
3042 if (dev->devtype->tempbuf_size) {
3043 ret = coda_alloc_aux_buf(dev, &dev->tempbuf,
3044 dev->devtype->tempbuf_size, "tempbuf",
3045 dev->debugfs_root);
3046 if (ret < 0)
3047 goto err_v4l2_register;
3048 }
3049
3050 dev->iram.size = dev->devtype->iram_size;
3051 dev->iram.vaddr = gen_pool_dma_alloc(dev->iram_pool, dev->iram.size,
3052 &dev->iram.paddr);
3053 if (!dev->iram.vaddr) {
3054 dev_warn(&pdev->dev, "unable to alloc iram\n");
3055 } else {
3056 memset(dev->iram.vaddr, 0, dev->iram.size);
3057 dev->iram.blob.data = dev->iram.vaddr;
3058 dev->iram.blob.size = dev->iram.size;
3059 dev->iram.dentry = debugfs_create_blob("iram", 0644,
3060 dev->debugfs_root,
3061 &dev->iram.blob);
3062 }
3063
3064 dev->workqueue = alloc_workqueue("coda", WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
3065 if (!dev->workqueue) {
3066 dev_err(&pdev->dev, "unable to alloc workqueue\n");
3067 ret = -ENOMEM;
3068 goto err_v4l2_register;
3069 }
3070
3071 platform_set_drvdata(pdev, dev);
3072
3073 /*
3074 * Start activated so we can directly call coda_hw_init in
3075 * coda_fw_callback regardless of whether CONFIG_PM is
3076 * enabled or whether the device is associated with a PM domain.
3077 */
3078 pm_runtime_get_noresume(&pdev->dev);
3079 pm_runtime_set_active(&pdev->dev);
3080 pm_runtime_enable(&pdev->dev);
3081
3082 ret = coda_firmware_request(dev);
3083 if (ret)
3084 goto err_alloc_workqueue;
3085 return 0;
3086
3087 err_alloc_workqueue:
3088 destroy_workqueue(dev->workqueue);
3089 err_v4l2_register:
3090 v4l2_device_unregister(&dev->v4l2_dev);
3091 return ret;
3092 }
3093
coda_remove(struct platform_device * pdev)3094 static int coda_remove(struct platform_device *pdev)
3095 {
3096 struct coda_dev *dev = platform_get_drvdata(pdev);
3097 int i;
3098
3099 for (i = 0; i < ARRAY_SIZE(dev->vfd); i++) {
3100 if (video_get_drvdata(&dev->vfd[i]))
3101 video_unregister_device(&dev->vfd[i]);
3102 }
3103 if (dev->m2m_dev)
3104 v4l2_m2m_release(dev->m2m_dev);
3105 pm_runtime_disable(&pdev->dev);
3106 v4l2_device_unregister(&dev->v4l2_dev);
3107 destroy_workqueue(dev->workqueue);
3108 if (dev->iram.vaddr)
3109 gen_pool_free(dev->iram_pool, (unsigned long)dev->iram.vaddr,
3110 dev->iram.size);
3111 coda_free_aux_buf(dev, &dev->codebuf);
3112 coda_free_aux_buf(dev, &dev->tempbuf);
3113 coda_free_aux_buf(dev, &dev->workbuf);
3114 debugfs_remove_recursive(dev->debugfs_root);
3115 ida_destroy(&dev->ida);
3116 return 0;
3117 }
3118
3119 #ifdef CONFIG_PM
coda_runtime_resume(struct device * dev)3120 static int coda_runtime_resume(struct device *dev)
3121 {
3122 struct coda_dev *cdev = dev_get_drvdata(dev);
3123 int ret = 0;
3124
3125 if (dev->pm_domain && cdev->codebuf.vaddr) {
3126 ret = coda_hw_init(cdev);
3127 if (ret)
3128 v4l2_err(&cdev->v4l2_dev, "HW initialization failed\n");
3129 }
3130
3131 return ret;
3132 }
3133 #endif
3134
3135 static const struct dev_pm_ops coda_pm_ops = {
3136 SET_RUNTIME_PM_OPS(NULL, coda_runtime_resume, NULL)
3137 };
3138
3139 static struct platform_driver coda_driver = {
3140 .probe = coda_probe,
3141 .remove = coda_remove,
3142 .driver = {
3143 .name = CODA_NAME,
3144 .of_match_table = of_match_ptr(coda_dt_ids),
3145 .pm = &coda_pm_ops,
3146 },
3147 .id_table = coda_platform_ids,
3148 };
3149
3150 module_platform_driver(coda_driver);
3151
3152 MODULE_LICENSE("GPL");
3153 MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
3154 MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver");
3155