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.h>
23 #include <linux/of_platform.h>
24 #include <linux/platform_device.h>
25 #include <linux/pm_runtime.h>
26 #include <linux/slab.h>
27 #include <linux/videodev2.h>
28 #include <linux/ratelimit.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 5
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_ENCODE_MJPG, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_JPEG, 8192, 8192),
159 CODA_CODEC(CODA9_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
160 CODA_CODEC(CODA9_MODE_DECODE_MP2, V4L2_PIX_FMT_MPEG2, V4L2_PIX_FMT_YUV420, 1920, 1088),
161 CODA_CODEC(CODA9_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
162 CODA_CODEC(CODA9_MODE_DECODE_MJPG, V4L2_PIX_FMT_JPEG, V4L2_PIX_FMT_YUV420, 8192, 8192),
163 };
164
165 struct coda_video_device {
166 const char *name;
167 enum coda_inst_type type;
168 const struct coda_context_ops *ops;
169 bool direct;
170 u32 src_formats[CODA_MAX_FORMATS];
171 u32 dst_formats[CODA_MAX_FORMATS];
172 };
173
174 static const struct coda_video_device coda_bit_encoder = {
175 .name = "coda-video-encoder",
176 .type = CODA_INST_ENCODER,
177 .ops = &coda_bit_encode_ops,
178 .src_formats = {
179 V4L2_PIX_FMT_NV12,
180 V4L2_PIX_FMT_YUV420,
181 V4L2_PIX_FMT_YVU420,
182 },
183 .dst_formats = {
184 V4L2_PIX_FMT_H264,
185 V4L2_PIX_FMT_MPEG4,
186 },
187 };
188
189 static const struct coda_video_device coda_bit_jpeg_encoder = {
190 .name = "coda-jpeg-encoder",
191 .type = CODA_INST_ENCODER,
192 .ops = &coda_bit_encode_ops,
193 .src_formats = {
194 V4L2_PIX_FMT_NV12,
195 V4L2_PIX_FMT_YUV420,
196 V4L2_PIX_FMT_YVU420,
197 V4L2_PIX_FMT_YUV422P,
198 },
199 .dst_formats = {
200 V4L2_PIX_FMT_JPEG,
201 },
202 };
203
204 static const struct coda_video_device coda_bit_decoder = {
205 .name = "coda-video-decoder",
206 .type = CODA_INST_DECODER,
207 .ops = &coda_bit_decode_ops,
208 .src_formats = {
209 V4L2_PIX_FMT_H264,
210 V4L2_PIX_FMT_MPEG2,
211 V4L2_PIX_FMT_MPEG4,
212 },
213 .dst_formats = {
214 V4L2_PIX_FMT_NV12,
215 V4L2_PIX_FMT_YUV420,
216 V4L2_PIX_FMT_YVU420,
217 /*
218 * If V4L2_PIX_FMT_YUYV should be default,
219 * set_default_params() must be adjusted.
220 */
221 V4L2_PIX_FMT_YUYV,
222 },
223 };
224
225 static const struct coda_video_device coda_bit_jpeg_decoder = {
226 .name = "coda-jpeg-decoder",
227 .type = CODA_INST_DECODER,
228 .ops = &coda_bit_decode_ops,
229 .src_formats = {
230 V4L2_PIX_FMT_JPEG,
231 },
232 .dst_formats = {
233 V4L2_PIX_FMT_NV12,
234 V4L2_PIX_FMT_YUV420,
235 V4L2_PIX_FMT_YVU420,
236 V4L2_PIX_FMT_YUV422P,
237 },
238 };
239
240 static const struct coda_video_device coda9_jpeg_encoder = {
241 .name = "coda-jpeg-encoder",
242 .type = CODA_INST_ENCODER,
243 .ops = &coda9_jpeg_encode_ops,
244 .direct = true,
245 .src_formats = {
246 V4L2_PIX_FMT_NV12,
247 V4L2_PIX_FMT_YUV420,
248 V4L2_PIX_FMT_YVU420,
249 V4L2_PIX_FMT_YUV422P,
250 V4L2_PIX_FMT_GREY,
251 },
252 .dst_formats = {
253 V4L2_PIX_FMT_JPEG,
254 },
255 };
256
257 static const struct coda_video_device coda9_jpeg_decoder = {
258 .name = "coda-jpeg-decoder",
259 .type = CODA_INST_DECODER,
260 .ops = &coda9_jpeg_decode_ops,
261 .direct = true,
262 .src_formats = {
263 V4L2_PIX_FMT_JPEG,
264 },
265 .dst_formats = {
266 V4L2_PIX_FMT_NV12,
267 V4L2_PIX_FMT_YUV420,
268 V4L2_PIX_FMT_YVU420,
269 V4L2_PIX_FMT_YUV422P,
270 },
271 };
272
273 static const struct coda_video_device *codadx6_video_devices[] = {
274 &coda_bit_encoder,
275 };
276
277 static const struct coda_video_device *codahx4_video_devices[] = {
278 &coda_bit_encoder,
279 &coda_bit_decoder,
280 };
281
282 static const struct coda_video_device *coda7_video_devices[] = {
283 &coda_bit_jpeg_encoder,
284 &coda_bit_jpeg_decoder,
285 &coda_bit_encoder,
286 &coda_bit_decoder,
287 };
288
289 static const struct coda_video_device *coda9_video_devices[] = {
290 &coda9_jpeg_encoder,
291 &coda9_jpeg_decoder,
292 &coda_bit_encoder,
293 &coda_bit_decoder,
294 };
295
296 /*
297 * Normalize all supported YUV 4:2:0 formats to the value used in the codec
298 * tables.
299 */
coda_format_normalize_yuv(u32 fourcc)300 static u32 coda_format_normalize_yuv(u32 fourcc)
301 {
302 switch (fourcc) {
303 case V4L2_PIX_FMT_NV12:
304 case V4L2_PIX_FMT_YUV420:
305 case V4L2_PIX_FMT_YVU420:
306 case V4L2_PIX_FMT_YUV422P:
307 case V4L2_PIX_FMT_YUYV:
308 return V4L2_PIX_FMT_YUV420;
309 default:
310 return fourcc;
311 }
312 }
313
coda_find_codec(struct coda_dev * dev,int src_fourcc,int dst_fourcc)314 static const struct coda_codec *coda_find_codec(struct coda_dev *dev,
315 int src_fourcc, int dst_fourcc)
316 {
317 const struct coda_codec *codecs = dev->devtype->codecs;
318 int num_codecs = dev->devtype->num_codecs;
319 int k;
320
321 src_fourcc = coda_format_normalize_yuv(src_fourcc);
322 dst_fourcc = coda_format_normalize_yuv(dst_fourcc);
323 if (src_fourcc == dst_fourcc)
324 return NULL;
325
326 for (k = 0; k < num_codecs; k++) {
327 if (codecs[k].src_fourcc == src_fourcc &&
328 codecs[k].dst_fourcc == dst_fourcc)
329 break;
330 }
331
332 if (k == num_codecs)
333 return NULL;
334
335 return &codecs[k];
336 }
337
coda_get_max_dimensions(struct coda_dev * dev,const struct coda_codec * codec,int * max_w,int * max_h)338 static void coda_get_max_dimensions(struct coda_dev *dev,
339 const struct coda_codec *codec,
340 int *max_w, int *max_h)
341 {
342 const struct coda_codec *codecs = dev->devtype->codecs;
343 int num_codecs = dev->devtype->num_codecs;
344 unsigned int w, h;
345 int k;
346
347 if (codec) {
348 w = codec->max_w;
349 h = codec->max_h;
350 } else {
351 for (k = 0, w = 0, h = 0; k < num_codecs; k++) {
352 w = max(w, codecs[k].max_w);
353 h = max(h, codecs[k].max_h);
354 }
355 }
356
357 if (max_w)
358 *max_w = w;
359 if (max_h)
360 *max_h = h;
361 }
362
to_coda_video_device(struct video_device * vdev)363 static const struct coda_video_device *to_coda_video_device(struct video_device
364 *vdev)
365 {
366 struct coda_dev *dev = video_get_drvdata(vdev);
367 unsigned int i = vdev - dev->vfd;
368
369 if (i >= dev->devtype->num_vdevs)
370 return NULL;
371
372 return dev->devtype->vdevs[i];
373 }
374
coda_product_name(int product)375 const char *coda_product_name(int product)
376 {
377 static char buf[9];
378
379 switch (product) {
380 case CODA_DX6:
381 return "CodaDx6";
382 case CODA_HX4:
383 return "CodaHx4";
384 case CODA_7541:
385 return "CODA7541";
386 case CODA_960:
387 return "CODA960";
388 default:
389 snprintf(buf, sizeof(buf), "(0x%04x)", product);
390 return buf;
391 }
392 }
393
coda_get_vdoa_data(void)394 static struct vdoa_data *coda_get_vdoa_data(void)
395 {
396 struct device_node *vdoa_node;
397 struct platform_device *vdoa_pdev;
398 struct vdoa_data *vdoa_data = NULL;
399
400 vdoa_node = of_find_compatible_node(NULL, NULL, "fsl,imx6q-vdoa");
401 if (!vdoa_node)
402 return NULL;
403
404 vdoa_pdev = of_find_device_by_node(vdoa_node);
405 if (!vdoa_pdev)
406 goto out;
407
408 vdoa_data = platform_get_drvdata(vdoa_pdev);
409 if (!vdoa_data)
410 vdoa_data = ERR_PTR(-EPROBE_DEFER);
411
412 put_device(&vdoa_pdev->dev);
413 out:
414 of_node_put(vdoa_node);
415
416 return vdoa_data;
417 }
418
419 /*
420 * V4L2 ioctl() operations.
421 */
coda_querycap(struct file * file,void * priv,struct v4l2_capability * cap)422 static int coda_querycap(struct file *file, void *priv,
423 struct v4l2_capability *cap)
424 {
425 struct coda_ctx *ctx = fh_to_ctx(priv);
426
427 strscpy(cap->driver, CODA_NAME, sizeof(cap->driver));
428 strscpy(cap->card, coda_product_name(ctx->dev->devtype->product),
429 sizeof(cap->card));
430 strscpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
431 return 0;
432 }
433
434 static const u32 coda_formats_420[CODA_MAX_FORMATS] = {
435 V4L2_PIX_FMT_NV12,
436 V4L2_PIX_FMT_YUV420,
437 V4L2_PIX_FMT_YVU420,
438 };
439
coda_enum_fmt(struct file * file,void * priv,struct v4l2_fmtdesc * f)440 static int coda_enum_fmt(struct file *file, void *priv,
441 struct v4l2_fmtdesc *f)
442 {
443 struct video_device *vdev = video_devdata(file);
444 const struct coda_video_device *cvd = to_coda_video_device(vdev);
445 struct coda_ctx *ctx = fh_to_ctx(priv);
446 const u32 *formats;
447
448 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
449 formats = cvd->src_formats;
450 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
451 struct coda_q_data *q_data_src;
452 struct vb2_queue *src_vq;
453
454 formats = cvd->dst_formats;
455
456 /*
457 * If the source format is already fixed, only allow the same
458 * chroma subsampling.
459 */
460 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
461 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
462 V4L2_BUF_TYPE_VIDEO_OUTPUT);
463 if (q_data_src->fourcc == V4L2_PIX_FMT_JPEG &&
464 vb2_is_streaming(src_vq)) {
465 if (ctx->params.jpeg_chroma_subsampling ==
466 V4L2_JPEG_CHROMA_SUBSAMPLING_420) {
467 formats = coda_formats_420;
468 } else if (ctx->params.jpeg_chroma_subsampling ==
469 V4L2_JPEG_CHROMA_SUBSAMPLING_422) {
470 f->pixelformat = V4L2_PIX_FMT_YUV422P;
471 return f->index ? -EINVAL : 0;
472 }
473 }
474 } else {
475 return -EINVAL;
476 }
477
478 if (f->index >= CODA_MAX_FORMATS || formats[f->index] == 0)
479 return -EINVAL;
480
481 /* Skip YUYV if the vdoa is not available */
482 if (!ctx->vdoa && f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
483 formats[f->index] == V4L2_PIX_FMT_YUYV)
484 return -EINVAL;
485
486 f->pixelformat = formats[f->index];
487
488 return 0;
489 }
490
coda_g_fmt(struct file * file,void * priv,struct v4l2_format * f)491 static int coda_g_fmt(struct file *file, void *priv,
492 struct v4l2_format *f)
493 {
494 struct coda_q_data *q_data;
495 struct coda_ctx *ctx = fh_to_ctx(priv);
496
497 q_data = get_q_data(ctx, f->type);
498 if (!q_data)
499 return -EINVAL;
500
501 f->fmt.pix.field = V4L2_FIELD_NONE;
502 f->fmt.pix.pixelformat = q_data->fourcc;
503 f->fmt.pix.width = q_data->width;
504 f->fmt.pix.height = q_data->height;
505 f->fmt.pix.bytesperline = q_data->bytesperline;
506
507 f->fmt.pix.sizeimage = q_data->sizeimage;
508 f->fmt.pix.colorspace = ctx->colorspace;
509 f->fmt.pix.xfer_func = ctx->xfer_func;
510 f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
511 f->fmt.pix.quantization = ctx->quantization;
512
513 return 0;
514 }
515
coda_try_pixelformat(struct coda_ctx * ctx,struct v4l2_format * f)516 static int coda_try_pixelformat(struct coda_ctx *ctx, struct v4l2_format *f)
517 {
518 struct coda_q_data *q_data;
519 const u32 *formats;
520 int i;
521
522 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
523 formats = ctx->cvd->src_formats;
524 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
525 formats = ctx->cvd->dst_formats;
526 else
527 return -EINVAL;
528
529 for (i = 0; i < CODA_MAX_FORMATS; i++) {
530 /* Skip YUYV if the vdoa is not available */
531 if (!ctx->vdoa && f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
532 formats[i] == V4L2_PIX_FMT_YUYV)
533 continue;
534
535 if (formats[i] == f->fmt.pix.pixelformat) {
536 f->fmt.pix.pixelformat = formats[i];
537 return 0;
538 }
539 }
540
541 /* Fall back to currently set pixelformat */
542 q_data = get_q_data(ctx, f->type);
543 f->fmt.pix.pixelformat = q_data->fourcc;
544
545 return 0;
546 }
547
coda_try_fmt_vdoa(struct coda_ctx * ctx,struct v4l2_format * f,bool * use_vdoa)548 static int coda_try_fmt_vdoa(struct coda_ctx *ctx, struct v4l2_format *f,
549 bool *use_vdoa)
550 {
551 int err;
552
553 if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
554 return -EINVAL;
555
556 if (!use_vdoa)
557 return -EINVAL;
558
559 if (!ctx->vdoa) {
560 *use_vdoa = false;
561 return 0;
562 }
563
564 err = vdoa_context_configure(NULL, round_up(f->fmt.pix.width, 16),
565 f->fmt.pix.height, f->fmt.pix.pixelformat);
566 if (err) {
567 *use_vdoa = false;
568 return 0;
569 }
570
571 *use_vdoa = true;
572 return 0;
573 }
574
coda_estimate_sizeimage(struct coda_ctx * ctx,u32 sizeimage,u32 width,u32 height)575 static unsigned int coda_estimate_sizeimage(struct coda_ctx *ctx, u32 sizeimage,
576 u32 width, u32 height)
577 {
578 /*
579 * This is a rough estimate for sensible compressed buffer
580 * sizes (between 1 and 16 bits per pixel). This could be
581 * improved by better format specific worst case estimates.
582 */
583 return round_up(clamp(sizeimage, width * height / 8,
584 width * height * 2), PAGE_SIZE);
585 }
586
coda_try_fmt(struct coda_ctx * ctx,const struct coda_codec * codec,struct v4l2_format * f)587 static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
588 struct v4l2_format *f)
589 {
590 struct coda_dev *dev = ctx->dev;
591 unsigned int max_w, max_h;
592 enum v4l2_field field;
593
594 field = f->fmt.pix.field;
595 if (field == V4L2_FIELD_ANY)
596 field = V4L2_FIELD_NONE;
597 else if (V4L2_FIELD_NONE != field)
598 return -EINVAL;
599
600 /* V4L2 specification suggests the driver corrects the format struct
601 * if any of the dimensions is unsupported */
602 f->fmt.pix.field = field;
603
604 coda_get_max_dimensions(dev, codec, &max_w, &max_h);
605 v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w, W_ALIGN,
606 &f->fmt.pix.height, MIN_H, max_h, H_ALIGN,
607 S_ALIGN);
608
609 switch (f->fmt.pix.pixelformat) {
610 case V4L2_PIX_FMT_NV12:
611 case V4L2_PIX_FMT_YUV420:
612 case V4L2_PIX_FMT_YVU420:
613 /*
614 * Frame stride must be at least multiple of 8,
615 * but multiple of 16 for h.264 or JPEG 4:2:x
616 */
617 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
618 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
619 f->fmt.pix.height * 3 / 2;
620 break;
621 case V4L2_PIX_FMT_YUYV:
622 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16) * 2;
623 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
624 f->fmt.pix.height;
625 break;
626 case V4L2_PIX_FMT_YUV422P:
627 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
628 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
629 f->fmt.pix.height * 2;
630 break;
631 case V4L2_PIX_FMT_GREY:
632 /* keep 16 pixel alignment of 8-bit pixel data */
633 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
634 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height;
635 break;
636 case V4L2_PIX_FMT_JPEG:
637 case V4L2_PIX_FMT_H264:
638 case V4L2_PIX_FMT_MPEG4:
639 case V4L2_PIX_FMT_MPEG2:
640 f->fmt.pix.bytesperline = 0;
641 f->fmt.pix.sizeimage = coda_estimate_sizeimage(ctx,
642 f->fmt.pix.sizeimage,
643 f->fmt.pix.width,
644 f->fmt.pix.height);
645 break;
646 default:
647 BUG();
648 }
649
650 return 0;
651 }
652
coda_try_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)653 static int coda_try_fmt_vid_cap(struct file *file, void *priv,
654 struct v4l2_format *f)
655 {
656 struct coda_ctx *ctx = fh_to_ctx(priv);
657 const struct coda_q_data *q_data_src;
658 const struct coda_codec *codec;
659 struct vb2_queue *src_vq;
660 int hscale = 0;
661 int vscale = 0;
662 int ret;
663 bool use_vdoa;
664
665 ret = coda_try_pixelformat(ctx, f);
666 if (ret < 0)
667 return ret;
668
669 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
670
671 /*
672 * If the source format is already fixed, only allow the same output
673 * resolution. When decoding JPEG images, we also have to make sure to
674 * use the same chroma subsampling.
675 */
676 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
677 if (vb2_is_streaming(src_vq)) {
678 if (q_data_src->fourcc == V4L2_PIX_FMT_JPEG &&
679 ctx->dev->devtype->product == CODA_960) {
680 hscale = coda_jpeg_scale(q_data_src->width, f->fmt.pix.width);
681 vscale = coda_jpeg_scale(q_data_src->height, f->fmt.pix.height);
682 }
683 f->fmt.pix.width = q_data_src->width >> hscale;
684 f->fmt.pix.height = q_data_src->height >> vscale;
685
686 if (q_data_src->fourcc == V4L2_PIX_FMT_JPEG) {
687 if (ctx->params.jpeg_chroma_subsampling ==
688 V4L2_JPEG_CHROMA_SUBSAMPLING_420 &&
689 f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUV422P)
690 f->fmt.pix.pixelformat = V4L2_PIX_FMT_NV12;
691 else if (ctx->params.jpeg_chroma_subsampling ==
692 V4L2_JPEG_CHROMA_SUBSAMPLING_422)
693 f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUV422P;
694 }
695 }
696
697 f->fmt.pix.colorspace = ctx->colorspace;
698 f->fmt.pix.xfer_func = ctx->xfer_func;
699 f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
700 f->fmt.pix.quantization = ctx->quantization;
701
702 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
703 codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
704 f->fmt.pix.pixelformat);
705 if (!codec)
706 return -EINVAL;
707
708 ret = coda_try_fmt(ctx, codec, f);
709 if (ret < 0)
710 return ret;
711
712 /* The decoders always write complete macroblocks or MCUs */
713 if (ctx->inst_type == CODA_INST_DECODER) {
714 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16 >> hscale);
715 f->fmt.pix.height = round_up(f->fmt.pix.height, 16 >> vscale);
716 if (codec->src_fourcc == V4L2_PIX_FMT_JPEG &&
717 f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUV422P) {
718 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
719 f->fmt.pix.height * 2;
720 } else {
721 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
722 f->fmt.pix.height * 3 / 2;
723 }
724
725 ret = coda_try_fmt_vdoa(ctx, f, &use_vdoa);
726 if (ret < 0)
727 return ret;
728
729 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) {
730 if (!use_vdoa)
731 return -EINVAL;
732
733 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16) * 2;
734 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
735 f->fmt.pix.height;
736 }
737 }
738
739 return 0;
740 }
741
coda_set_default_colorspace(struct v4l2_pix_format * fmt)742 static void coda_set_default_colorspace(struct v4l2_pix_format *fmt)
743 {
744 enum v4l2_colorspace colorspace;
745
746 if (fmt->pixelformat == V4L2_PIX_FMT_JPEG)
747 colorspace = V4L2_COLORSPACE_JPEG;
748 else if (fmt->width <= 720 && fmt->height <= 576)
749 colorspace = V4L2_COLORSPACE_SMPTE170M;
750 else
751 colorspace = V4L2_COLORSPACE_REC709;
752
753 fmt->colorspace = colorspace;
754 fmt->xfer_func = V4L2_XFER_FUNC_DEFAULT;
755 fmt->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
756 fmt->quantization = V4L2_QUANTIZATION_DEFAULT;
757 }
758
coda_try_fmt_vid_out(struct file * file,void * priv,struct v4l2_format * f)759 static int coda_try_fmt_vid_out(struct file *file, void *priv,
760 struct v4l2_format *f)
761 {
762 struct coda_ctx *ctx = fh_to_ctx(priv);
763 struct coda_dev *dev = ctx->dev;
764 const struct coda_q_data *q_data_dst;
765 const struct coda_codec *codec;
766 int ret;
767
768 ret = coda_try_pixelformat(ctx, f);
769 if (ret < 0)
770 return ret;
771
772 if (f->fmt.pix.colorspace == V4L2_COLORSPACE_DEFAULT)
773 coda_set_default_colorspace(&f->fmt.pix);
774
775 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
776 codec = coda_find_codec(dev, f->fmt.pix.pixelformat, q_data_dst->fourcc);
777
778 return coda_try_fmt(ctx, codec, f);
779 }
780
coda_s_fmt(struct coda_ctx * ctx,struct v4l2_format * f,struct v4l2_rect * r)781 static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f,
782 struct v4l2_rect *r)
783 {
784 struct coda_q_data *q_data;
785 struct vb2_queue *vq;
786
787 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
788 if (!vq)
789 return -EINVAL;
790
791 q_data = get_q_data(ctx, f->type);
792 if (!q_data)
793 return -EINVAL;
794
795 if (vb2_is_busy(vq)) {
796 v4l2_err(&ctx->dev->v4l2_dev, "%s: %s queue busy: %d\n",
797 __func__, v4l2_type_names[f->type], vb2_get_num_buffers(vq));
798 return -EBUSY;
799 }
800
801 q_data->fourcc = f->fmt.pix.pixelformat;
802 q_data->width = f->fmt.pix.width;
803 q_data->height = f->fmt.pix.height;
804 q_data->bytesperline = f->fmt.pix.bytesperline;
805 q_data->sizeimage = f->fmt.pix.sizeimage;
806 if (r) {
807 q_data->rect = *r;
808 } else {
809 q_data->rect.left = 0;
810 q_data->rect.top = 0;
811 q_data->rect.width = f->fmt.pix.width;
812 q_data->rect.height = f->fmt.pix.height;
813 }
814
815 switch (f->fmt.pix.pixelformat) {
816 case V4L2_PIX_FMT_YUYV:
817 ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP;
818 break;
819 case V4L2_PIX_FMT_NV12:
820 if (!disable_tiling && ctx->use_bit &&
821 ctx->dev->devtype->product == CODA_960) {
822 ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP;
823 break;
824 }
825 fallthrough;
826 case V4L2_PIX_FMT_YUV420:
827 case V4L2_PIX_FMT_YVU420:
828 case V4L2_PIX_FMT_YUV422P:
829 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP;
830 break;
831 default:
832 break;
833 }
834
835 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP &&
836 !coda_try_fmt_vdoa(ctx, f, &ctx->use_vdoa) &&
837 ctx->use_vdoa)
838 vdoa_context_configure(ctx->vdoa,
839 round_up(f->fmt.pix.width, 16),
840 f->fmt.pix.height,
841 f->fmt.pix.pixelformat);
842 else
843 ctx->use_vdoa = false;
844
845 coda_dbg(1, ctx, "Setting %s format, wxh: %dx%d, fmt: %4.4s %c\n",
846 v4l2_type_names[f->type], q_data->width, q_data->height,
847 (char *)&q_data->fourcc,
848 (ctx->tiled_map_type == GDI_LINEAR_FRAME_MAP) ? 'L' : 'T');
849
850 return 0;
851 }
852
coda_s_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)853 static int coda_s_fmt_vid_cap(struct file *file, void *priv,
854 struct v4l2_format *f)
855 {
856 struct coda_ctx *ctx = fh_to_ctx(priv);
857 struct coda_q_data *q_data_src;
858 const struct coda_codec *codec;
859 struct v4l2_rect r;
860 int hscale = 0;
861 int vscale = 0;
862 int ret;
863
864 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
865
866 if (q_data_src->fourcc == V4L2_PIX_FMT_JPEG &&
867 ctx->dev->devtype->product == CODA_960) {
868 hscale = coda_jpeg_scale(q_data_src->width, f->fmt.pix.width);
869 vscale = coda_jpeg_scale(q_data_src->height, f->fmt.pix.height);
870 }
871
872 ret = coda_try_fmt_vid_cap(file, priv, f);
873 if (ret)
874 return ret;
875
876 r.left = 0;
877 r.top = 0;
878 r.width = q_data_src->width >> hscale;
879 r.height = q_data_src->height >> vscale;
880
881 ret = coda_s_fmt(ctx, f, &r);
882 if (ret)
883 return ret;
884
885 if (ctx->inst_type != CODA_INST_ENCODER)
886 return 0;
887
888 /* Setting the coded format determines the selected codec */
889 codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
890 f->fmt.pix.pixelformat);
891 if (!codec) {
892 v4l2_err(&ctx->dev->v4l2_dev, "failed to determine codec\n");
893 return -EINVAL;
894 }
895 ctx->codec = codec;
896
897 ctx->colorspace = f->fmt.pix.colorspace;
898 ctx->xfer_func = f->fmt.pix.xfer_func;
899 ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
900 ctx->quantization = f->fmt.pix.quantization;
901
902 return 0;
903 }
904
coda_s_fmt_vid_out(struct file * file,void * priv,struct v4l2_format * f)905 static int coda_s_fmt_vid_out(struct file *file, void *priv,
906 struct v4l2_format *f)
907 {
908 struct coda_ctx *ctx = fh_to_ctx(priv);
909 const struct coda_codec *codec;
910 struct v4l2_format f_cap;
911 struct vb2_queue *dst_vq;
912 int ret;
913
914 ret = coda_try_fmt_vid_out(file, priv, f);
915 if (ret)
916 return ret;
917
918 ret = coda_s_fmt(ctx, f, NULL);
919 if (ret)
920 return ret;
921
922 ctx->colorspace = f->fmt.pix.colorspace;
923 ctx->xfer_func = f->fmt.pix.xfer_func;
924 ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
925 ctx->quantization = f->fmt.pix.quantization;
926
927 if (ctx->inst_type != CODA_INST_DECODER)
928 return 0;
929
930 /* Setting the coded format determines the selected codec */
931 codec = coda_find_codec(ctx->dev, f->fmt.pix.pixelformat,
932 V4L2_PIX_FMT_YUV420);
933 if (!codec) {
934 v4l2_err(&ctx->dev->v4l2_dev, "failed to determine codec\n");
935 return -EINVAL;
936 }
937 ctx->codec = codec;
938
939 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
940 if (!dst_vq)
941 return -EINVAL;
942
943 /*
944 * Setting the capture queue format is not possible while the capture
945 * queue is still busy. This is not an error, but the user will have to
946 * make sure themselves that the capture format is set correctly before
947 * starting the output queue again.
948 */
949 if (vb2_is_busy(dst_vq))
950 return 0;
951
952 memset(&f_cap, 0, sizeof(f_cap));
953 f_cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
954 coda_g_fmt(file, priv, &f_cap);
955 f_cap.fmt.pix.width = f->fmt.pix.width;
956 f_cap.fmt.pix.height = f->fmt.pix.height;
957
958 return coda_s_fmt_vid_cap(file, priv, &f_cap);
959 }
960
coda_reqbufs(struct file * file,void * priv,struct v4l2_requestbuffers * rb)961 static int coda_reqbufs(struct file *file, void *priv,
962 struct v4l2_requestbuffers *rb)
963 {
964 struct coda_ctx *ctx = fh_to_ctx(priv);
965 int ret;
966
967 ret = v4l2_m2m_reqbufs(file, ctx->fh.m2m_ctx, rb);
968 if (ret)
969 return ret;
970
971 /*
972 * Allow to allocate instance specific per-context buffers, such as
973 * bitstream ringbuffer, slice buffer, work buffer, etc. if needed.
974 */
975 if (rb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && ctx->ops->reqbufs)
976 return ctx->ops->reqbufs(ctx, rb);
977
978 return 0;
979 }
980
coda_qbuf(struct file * file,void * priv,struct v4l2_buffer * buf)981 static int coda_qbuf(struct file *file, void *priv,
982 struct v4l2_buffer *buf)
983 {
984 struct coda_ctx *ctx = fh_to_ctx(priv);
985
986 if (ctx->inst_type == CODA_INST_DECODER &&
987 buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
988 buf->flags &= ~V4L2_BUF_FLAG_LAST;
989
990 return v4l2_m2m_qbuf(file, ctx->fh.m2m_ctx, buf);
991 }
992
coda_dqbuf(struct file * file,void * priv,struct v4l2_buffer * buf)993 static int coda_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
994 {
995 struct coda_ctx *ctx = fh_to_ctx(priv);
996 int ret;
997
998 ret = v4l2_m2m_dqbuf(file, ctx->fh.m2m_ctx, buf);
999
1000 if (ctx->inst_type == CODA_INST_DECODER &&
1001 buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1002 buf->flags &= ~V4L2_BUF_FLAG_LAST;
1003
1004 return ret;
1005 }
1006
coda_m2m_buf_done(struct coda_ctx * ctx,struct vb2_v4l2_buffer * buf,enum vb2_buffer_state state)1007 void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
1008 enum vb2_buffer_state state)
1009 {
1010 const struct v4l2_event eos_event = {
1011 .type = V4L2_EVENT_EOS
1012 };
1013
1014 if (buf->flags & V4L2_BUF_FLAG_LAST)
1015 v4l2_event_queue_fh(&ctx->fh, &eos_event);
1016
1017 v4l2_m2m_buf_done(buf, state);
1018 }
1019
coda_g_selection(struct file * file,void * fh,struct v4l2_selection * s)1020 static int coda_g_selection(struct file *file, void *fh,
1021 struct v4l2_selection *s)
1022 {
1023 struct coda_ctx *ctx = fh_to_ctx(fh);
1024 struct coda_q_data *q_data;
1025 struct v4l2_rect r, *rsel;
1026
1027 q_data = get_q_data(ctx, s->type);
1028 if (!q_data)
1029 return -EINVAL;
1030
1031 r.left = 0;
1032 r.top = 0;
1033 r.width = q_data->width;
1034 r.height = q_data->height;
1035 rsel = &q_data->rect;
1036
1037 switch (s->target) {
1038 case V4L2_SEL_TGT_CROP_DEFAULT:
1039 case V4L2_SEL_TGT_CROP_BOUNDS:
1040 rsel = &r;
1041 fallthrough;
1042 case V4L2_SEL_TGT_CROP:
1043 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT ||
1044 ctx->inst_type == CODA_INST_DECODER)
1045 return -EINVAL;
1046 break;
1047 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
1048 case V4L2_SEL_TGT_COMPOSE_PADDED:
1049 rsel = &r;
1050 fallthrough;
1051 case V4L2_SEL_TGT_COMPOSE:
1052 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
1053 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
1054 ctx->inst_type == CODA_INST_ENCODER)
1055 return -EINVAL;
1056 break;
1057 default:
1058 return -EINVAL;
1059 }
1060
1061 s->r = *rsel;
1062
1063 return 0;
1064 }
1065
coda_s_selection(struct file * file,void * fh,struct v4l2_selection * s)1066 static int coda_s_selection(struct file *file, void *fh,
1067 struct v4l2_selection *s)
1068 {
1069 struct coda_ctx *ctx = fh_to_ctx(fh);
1070 struct coda_q_data *q_data;
1071
1072 switch (s->target) {
1073 case V4L2_SEL_TGT_CROP:
1074 if (ctx->inst_type == CODA_INST_ENCODER &&
1075 s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1076 q_data = get_q_data(ctx, s->type);
1077 if (!q_data)
1078 return -EINVAL;
1079
1080 s->r.left = 0;
1081 s->r.top = 0;
1082 s->r.width = clamp(s->r.width, 2U, q_data->width);
1083 s->r.height = clamp(s->r.height, 2U, q_data->height);
1084
1085 if (s->flags & V4L2_SEL_FLAG_LE) {
1086 s->r.width = round_up(s->r.width, 2);
1087 s->r.height = round_up(s->r.height, 2);
1088 } else {
1089 s->r.width = round_down(s->r.width, 2);
1090 s->r.height = round_down(s->r.height, 2);
1091 }
1092
1093 q_data->rect = s->r;
1094
1095 coda_dbg(1, ctx, "Setting crop rectangle: %dx%d\n",
1096 s->r.width, s->r.height);
1097
1098 return 0;
1099 }
1100 fallthrough;
1101 case V4L2_SEL_TGT_NATIVE_SIZE:
1102 case V4L2_SEL_TGT_COMPOSE:
1103 return coda_g_selection(file, fh, s);
1104 default:
1105 /* v4l2-compliance expects this to fail for read-only targets */
1106 return -EINVAL;
1107 }
1108 }
1109
coda_wake_up_capture_queue(struct coda_ctx * ctx)1110 static void coda_wake_up_capture_queue(struct coda_ctx *ctx)
1111 {
1112 struct vb2_queue *dst_vq;
1113
1114 coda_dbg(1, ctx, "waking up capture queue\n");
1115
1116 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1117 dst_vq->last_buffer_dequeued = true;
1118 wake_up(&dst_vq->done_wq);
1119 }
1120
coda_encoder_cmd(struct file * file,void * fh,struct v4l2_encoder_cmd * ec)1121 static int coda_encoder_cmd(struct file *file, void *fh,
1122 struct v4l2_encoder_cmd *ec)
1123 {
1124 struct coda_ctx *ctx = fh_to_ctx(fh);
1125 struct vb2_v4l2_buffer *buf;
1126 int ret;
1127
1128 ret = v4l2_m2m_ioctl_try_encoder_cmd(file, fh, ec);
1129 if (ret < 0)
1130 return ret;
1131
1132 mutex_lock(&ctx->wakeup_mutex);
1133 buf = v4l2_m2m_last_src_buf(ctx->fh.m2m_ctx);
1134 if (buf) {
1135 /*
1136 * If the last output buffer is still on the queue, make sure
1137 * that decoder finish_run will see the last flag and report it
1138 * to userspace.
1139 */
1140 buf->flags |= V4L2_BUF_FLAG_LAST;
1141 } else {
1142 /* Set the stream-end flag on this context */
1143 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
1144
1145 /*
1146 * If the last output buffer has already been taken from the
1147 * queue, wake up the capture queue and signal end of stream
1148 * via the -EPIPE mechanism.
1149 */
1150 coda_wake_up_capture_queue(ctx);
1151 }
1152 mutex_unlock(&ctx->wakeup_mutex);
1153
1154 return 0;
1155 }
1156
coda_mark_last_meta(struct coda_ctx * ctx)1157 static bool coda_mark_last_meta(struct coda_ctx *ctx)
1158 {
1159 struct coda_buffer_meta *meta;
1160
1161 coda_dbg(1, ctx, "marking last meta\n");
1162
1163 spin_lock(&ctx->buffer_meta_lock);
1164 if (list_empty(&ctx->buffer_meta_list)) {
1165 spin_unlock(&ctx->buffer_meta_lock);
1166 return false;
1167 }
1168
1169 meta = list_last_entry(&ctx->buffer_meta_list, struct coda_buffer_meta,
1170 list);
1171 meta->last = true;
1172
1173 spin_unlock(&ctx->buffer_meta_lock);
1174 return true;
1175 }
1176
coda_mark_last_dst_buf(struct coda_ctx * ctx)1177 static bool coda_mark_last_dst_buf(struct coda_ctx *ctx)
1178 {
1179 struct vb2_v4l2_buffer *buf;
1180 struct vb2_buffer *dst_vb;
1181 struct vb2_queue *dst_vq;
1182 unsigned long flags;
1183
1184 coda_dbg(1, ctx, "marking last capture buffer\n");
1185
1186 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1187 spin_lock_irqsave(&dst_vq->done_lock, flags);
1188 if (list_empty(&dst_vq->done_list)) {
1189 spin_unlock_irqrestore(&dst_vq->done_lock, flags);
1190 return false;
1191 }
1192
1193 dst_vb = list_last_entry(&dst_vq->done_list, struct vb2_buffer,
1194 done_entry);
1195 buf = to_vb2_v4l2_buffer(dst_vb);
1196 buf->flags |= V4L2_BUF_FLAG_LAST;
1197
1198 spin_unlock_irqrestore(&dst_vq->done_lock, flags);
1199 return true;
1200 }
1201
coda_decoder_cmd(struct file * file,void * fh,struct v4l2_decoder_cmd * dc)1202 static int coda_decoder_cmd(struct file *file, void *fh,
1203 struct v4l2_decoder_cmd *dc)
1204 {
1205 struct coda_ctx *ctx = fh_to_ctx(fh);
1206 struct coda_dev *dev = ctx->dev;
1207 struct vb2_v4l2_buffer *buf;
1208 struct vb2_queue *dst_vq;
1209 bool stream_end;
1210 bool wakeup;
1211 int ret;
1212
1213 ret = v4l2_m2m_ioctl_try_decoder_cmd(file, fh, dc);
1214 if (ret < 0)
1215 return ret;
1216
1217 switch (dc->cmd) {
1218 case V4L2_DEC_CMD_START:
1219 mutex_lock(&dev->coda_mutex);
1220 mutex_lock(&ctx->bitstream_mutex);
1221 coda_bitstream_flush(ctx);
1222 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
1223 V4L2_BUF_TYPE_VIDEO_CAPTURE);
1224 vb2_clear_last_buffer_dequeued(dst_vq);
1225 ctx->bit_stream_param &= ~CODA_BIT_STREAM_END_FLAG;
1226 coda_fill_bitstream(ctx, NULL);
1227 mutex_unlock(&ctx->bitstream_mutex);
1228 mutex_unlock(&dev->coda_mutex);
1229 break;
1230 case V4L2_DEC_CMD_STOP:
1231 stream_end = false;
1232 wakeup = false;
1233
1234 mutex_lock(&ctx->wakeup_mutex);
1235
1236 buf = v4l2_m2m_last_src_buf(ctx->fh.m2m_ctx);
1237 if (buf) {
1238 coda_dbg(1, ctx, "marking last pending buffer\n");
1239
1240 /* Mark last buffer */
1241 buf->flags |= V4L2_BUF_FLAG_LAST;
1242
1243 if (v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) == 0) {
1244 coda_dbg(1, ctx, "all remaining buffers queued\n");
1245 stream_end = true;
1246 }
1247 } else {
1248 if (ctx->use_bit)
1249 if (coda_mark_last_meta(ctx))
1250 stream_end = true;
1251 else
1252 wakeup = true;
1253 else
1254 if (!coda_mark_last_dst_buf(ctx))
1255 wakeup = true;
1256 }
1257
1258 if (stream_end) {
1259 coda_dbg(1, ctx, "all remaining buffers queued\n");
1260
1261 /* Set the stream-end flag on this context */
1262 coda_bit_stream_end_flag(ctx);
1263 ctx->hold = false;
1264 v4l2_m2m_try_schedule(ctx->fh.m2m_ctx);
1265 }
1266
1267 if (wakeup) {
1268 /* If there is no buffer in flight, wake up */
1269 coda_wake_up_capture_queue(ctx);
1270 }
1271
1272 mutex_unlock(&ctx->wakeup_mutex);
1273 break;
1274 default:
1275 return -EINVAL;
1276 }
1277
1278 return 0;
1279 }
1280
coda_enum_framesizes(struct file * file,void * fh,struct v4l2_frmsizeenum * fsize)1281 static int coda_enum_framesizes(struct file *file, void *fh,
1282 struct v4l2_frmsizeenum *fsize)
1283 {
1284 struct coda_ctx *ctx = fh_to_ctx(fh);
1285 struct coda_q_data *q_data_dst;
1286 const struct coda_codec *codec;
1287
1288 if (fsize->index)
1289 return -EINVAL;
1290
1291 if (coda_format_normalize_yuv(fsize->pixel_format) ==
1292 V4L2_PIX_FMT_YUV420) {
1293 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1294 codec = coda_find_codec(ctx->dev, fsize->pixel_format,
1295 q_data_dst->fourcc);
1296 } else {
1297 codec = coda_find_codec(ctx->dev, V4L2_PIX_FMT_YUV420,
1298 fsize->pixel_format);
1299 }
1300 if (!codec)
1301 return -EINVAL;
1302
1303 fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;
1304 fsize->stepwise.min_width = MIN_W;
1305 fsize->stepwise.max_width = codec->max_w;
1306 fsize->stepwise.step_width = 1;
1307 fsize->stepwise.min_height = MIN_H;
1308 fsize->stepwise.max_height = codec->max_h;
1309 fsize->stepwise.step_height = 1;
1310
1311 return 0;
1312 }
1313
coda_enum_frameintervals(struct file * file,void * fh,struct v4l2_frmivalenum * f)1314 static int coda_enum_frameintervals(struct file *file, void *fh,
1315 struct v4l2_frmivalenum *f)
1316 {
1317 struct coda_ctx *ctx = fh_to_ctx(fh);
1318 struct coda_q_data *q_data;
1319 const struct coda_codec *codec;
1320
1321 if (f->index)
1322 return -EINVAL;
1323
1324 /* Disallow YUYV if the vdoa is not available */
1325 if (!ctx->vdoa && f->pixel_format == V4L2_PIX_FMT_YUYV)
1326 return -EINVAL;
1327
1328 if (coda_format_normalize_yuv(f->pixel_format) == V4L2_PIX_FMT_YUV420) {
1329 q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1330 codec = coda_find_codec(ctx->dev, f->pixel_format,
1331 q_data->fourcc);
1332 } else {
1333 codec = coda_find_codec(ctx->dev, V4L2_PIX_FMT_YUV420,
1334 f->pixel_format);
1335 }
1336 if (!codec)
1337 return -EINVAL;
1338
1339 if (f->width < MIN_W || f->width > codec->max_w ||
1340 f->height < MIN_H || f->height > codec->max_h)
1341 return -EINVAL;
1342
1343 f->type = V4L2_FRMIVAL_TYPE_CONTINUOUS;
1344 f->stepwise.min.numerator = 1;
1345 f->stepwise.min.denominator = 65535;
1346 f->stepwise.max.numerator = 65536;
1347 f->stepwise.max.denominator = 1;
1348 f->stepwise.step.numerator = 1;
1349 f->stepwise.step.denominator = 1;
1350
1351 return 0;
1352 }
1353
coda_g_parm(struct file * file,void * fh,struct v4l2_streamparm * a)1354 static int coda_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1355 {
1356 struct coda_ctx *ctx = fh_to_ctx(fh);
1357 struct v4l2_fract *tpf;
1358
1359 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1360 return -EINVAL;
1361
1362 a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
1363 tpf = &a->parm.output.timeperframe;
1364 tpf->denominator = ctx->params.framerate & CODA_FRATE_RES_MASK;
1365 tpf->numerator = 1 + (ctx->params.framerate >>
1366 CODA_FRATE_DIV_OFFSET);
1367
1368 return 0;
1369 }
1370
1371 /*
1372 * Approximate timeperframe v4l2_fract with values that can be written
1373 * into the 16-bit CODA_FRATE_DIV and CODA_FRATE_RES fields.
1374 */
coda_approximate_timeperframe(struct v4l2_fract * timeperframe)1375 static void coda_approximate_timeperframe(struct v4l2_fract *timeperframe)
1376 {
1377 struct v4l2_fract s = *timeperframe;
1378 struct v4l2_fract f0;
1379 struct v4l2_fract f1 = { 1, 0 };
1380 struct v4l2_fract f2 = { 0, 1 };
1381 unsigned int i, div, s_denominator;
1382
1383 /* Lower bound is 1/65535 */
1384 if (s.numerator == 0 || s.denominator / s.numerator > 65535) {
1385 timeperframe->numerator = 1;
1386 timeperframe->denominator = 65535;
1387 return;
1388 }
1389
1390 /* Upper bound is 65536/1 */
1391 if (s.denominator == 0 || s.numerator / s.denominator > 65536) {
1392 timeperframe->numerator = 65536;
1393 timeperframe->denominator = 1;
1394 return;
1395 }
1396
1397 /* Reduce fraction to lowest terms */
1398 div = gcd(s.numerator, s.denominator);
1399 if (div > 1) {
1400 s.numerator /= div;
1401 s.denominator /= div;
1402 }
1403
1404 if (s.numerator <= 65536 && s.denominator < 65536) {
1405 *timeperframe = s;
1406 return;
1407 }
1408
1409 /* Find successive convergents from continued fraction expansion */
1410 while (f2.numerator <= 65536 && f2.denominator < 65536) {
1411 f0 = f1;
1412 f1 = f2;
1413
1414 /* Stop when f2 exactly equals timeperframe */
1415 if (s.numerator == 0)
1416 break;
1417
1418 i = s.denominator / s.numerator;
1419
1420 f2.numerator = f0.numerator + i * f1.numerator;
1421 f2.denominator = f0.denominator + i * f2.denominator;
1422
1423 s_denominator = s.numerator;
1424 s.numerator = s.denominator % s.numerator;
1425 s.denominator = s_denominator;
1426 }
1427
1428 *timeperframe = f1;
1429 }
1430
coda_timeperframe_to_frate(struct v4l2_fract * timeperframe)1431 static uint32_t coda_timeperframe_to_frate(struct v4l2_fract *timeperframe)
1432 {
1433 return ((timeperframe->numerator - 1) << CODA_FRATE_DIV_OFFSET) |
1434 timeperframe->denominator;
1435 }
1436
coda_s_parm(struct file * file,void * fh,struct v4l2_streamparm * a)1437 static int coda_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1438 {
1439 struct coda_ctx *ctx = fh_to_ctx(fh);
1440 struct v4l2_fract *tpf;
1441
1442 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1443 return -EINVAL;
1444
1445 a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
1446 tpf = &a->parm.output.timeperframe;
1447 coda_approximate_timeperframe(tpf);
1448 ctx->params.framerate = coda_timeperframe_to_frate(tpf);
1449 ctx->params.framerate_changed = true;
1450
1451 return 0;
1452 }
1453
coda_subscribe_event(struct v4l2_fh * fh,const struct v4l2_event_subscription * sub)1454 static int coda_subscribe_event(struct v4l2_fh *fh,
1455 const struct v4l2_event_subscription *sub)
1456 {
1457 struct coda_ctx *ctx = fh_to_ctx(fh);
1458
1459 switch (sub->type) {
1460 case V4L2_EVENT_EOS:
1461 return v4l2_event_subscribe(fh, sub, 0, NULL);
1462 case V4L2_EVENT_SOURCE_CHANGE:
1463 if (ctx->inst_type == CODA_INST_DECODER)
1464 return v4l2_event_subscribe(fh, sub, 0, NULL);
1465 else
1466 return -EINVAL;
1467 default:
1468 return v4l2_ctrl_subscribe_event(fh, sub);
1469 }
1470 }
1471
1472 static const struct v4l2_ioctl_ops coda_ioctl_ops = {
1473 .vidioc_querycap = coda_querycap,
1474
1475 .vidioc_enum_fmt_vid_cap = coda_enum_fmt,
1476 .vidioc_g_fmt_vid_cap = coda_g_fmt,
1477 .vidioc_try_fmt_vid_cap = coda_try_fmt_vid_cap,
1478 .vidioc_s_fmt_vid_cap = coda_s_fmt_vid_cap,
1479
1480 .vidioc_enum_fmt_vid_out = coda_enum_fmt,
1481 .vidioc_g_fmt_vid_out = coda_g_fmt,
1482 .vidioc_try_fmt_vid_out = coda_try_fmt_vid_out,
1483 .vidioc_s_fmt_vid_out = coda_s_fmt_vid_out,
1484
1485 .vidioc_reqbufs = coda_reqbufs,
1486 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
1487
1488 .vidioc_qbuf = coda_qbuf,
1489 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
1490 .vidioc_dqbuf = coda_dqbuf,
1491 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
1492 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
1493
1494 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
1495 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
1496
1497 .vidioc_g_selection = coda_g_selection,
1498 .vidioc_s_selection = coda_s_selection,
1499
1500 .vidioc_try_encoder_cmd = v4l2_m2m_ioctl_try_encoder_cmd,
1501 .vidioc_encoder_cmd = coda_encoder_cmd,
1502 .vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd,
1503 .vidioc_decoder_cmd = coda_decoder_cmd,
1504
1505 .vidioc_g_parm = coda_g_parm,
1506 .vidioc_s_parm = coda_s_parm,
1507
1508 .vidioc_enum_framesizes = coda_enum_framesizes,
1509 .vidioc_enum_frameintervals = coda_enum_frameintervals,
1510
1511 .vidioc_subscribe_event = coda_subscribe_event,
1512 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1513 };
1514
1515 /*
1516 * Mem-to-mem operations.
1517 */
1518
coda_device_run(void * m2m_priv)1519 static void coda_device_run(void *m2m_priv)
1520 {
1521 struct coda_ctx *ctx = m2m_priv;
1522 struct coda_dev *dev = ctx->dev;
1523
1524 queue_work(dev->workqueue, &ctx->pic_run_work);
1525 }
1526
coda_pic_run_work(struct work_struct * work)1527 static void coda_pic_run_work(struct work_struct *work)
1528 {
1529 struct coda_ctx *ctx = container_of(work, struct coda_ctx, pic_run_work);
1530 struct coda_dev *dev = ctx->dev;
1531 int ret;
1532
1533 mutex_lock(&ctx->buffer_mutex);
1534 mutex_lock(&dev->coda_mutex);
1535
1536 ret = ctx->ops->prepare_run(ctx);
1537 if (ret < 0 && ctx->inst_type == CODA_INST_DECODER)
1538 goto out;
1539
1540 if (!wait_for_completion_timeout(&ctx->completion,
1541 msecs_to_jiffies(1000))) {
1542 if (ctx->use_bit) {
1543 dev_err(dev->dev, "CODA PIC_RUN timeout\n");
1544
1545 ctx->hold = true;
1546
1547 coda_hw_reset(ctx);
1548 }
1549
1550 if (ctx->ops->run_timeout)
1551 ctx->ops->run_timeout(ctx);
1552 } else {
1553 ctx->ops->finish_run(ctx);
1554 }
1555
1556 if ((ctx->aborting || (!ctx->streamon_cap && !ctx->streamon_out)) &&
1557 ctx->ops->seq_end_work)
1558 queue_work(dev->workqueue, &ctx->seq_end_work);
1559
1560 out:
1561 mutex_unlock(&dev->coda_mutex);
1562 mutex_unlock(&ctx->buffer_mutex);
1563
1564 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
1565 }
1566
coda_job_ready(void * m2m_priv)1567 static int coda_job_ready(void *m2m_priv)
1568 {
1569 struct coda_ctx *ctx = m2m_priv;
1570 int src_bufs = v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx);
1571
1572 /*
1573 * For both 'P' and 'key' frame cases 1 picture
1574 * and 1 frame are needed. In the decoder case,
1575 * the compressed frame can be in the bitstream.
1576 */
1577 if (!src_bufs && ctx->inst_type != CODA_INST_DECODER) {
1578 coda_dbg(1, ctx, "not ready: not enough vid-out buffers.\n");
1579 return 0;
1580 }
1581
1582 if (!v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx)) {
1583 coda_dbg(1, ctx, "not ready: not enough vid-cap buffers.\n");
1584 return 0;
1585 }
1586
1587 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1588 bool stream_end = ctx->bit_stream_param &
1589 CODA_BIT_STREAM_END_FLAG;
1590 int num_metas = ctx->num_metas;
1591 struct coda_buffer_meta *meta;
1592 unsigned int count;
1593
1594 count = hweight32(ctx->frm_dis_flg);
1595 if (ctx->use_vdoa && count >= (ctx->num_internal_frames - 1)) {
1596 coda_dbg(1, ctx,
1597 "not ready: all internal buffers in use: %d/%d (0x%x)",
1598 count, ctx->num_internal_frames,
1599 ctx->frm_dis_flg);
1600 return 0;
1601 }
1602
1603 if (ctx->hold && !src_bufs) {
1604 coda_dbg(1, ctx,
1605 "not ready: on hold for more buffers.\n");
1606 return 0;
1607 }
1608
1609 if (!stream_end && (num_metas + src_bufs) < 2) {
1610 coda_dbg(1, ctx,
1611 "not ready: need 2 buffers available (queue:%d + bitstream:%d)\n",
1612 num_metas, src_bufs);
1613 return 0;
1614 }
1615
1616 meta = list_first_entry(&ctx->buffer_meta_list,
1617 struct coda_buffer_meta, list);
1618 if (!coda_bitstream_can_fetch_past(ctx, meta->end) &&
1619 !stream_end) {
1620 coda_dbg(1, ctx,
1621 "not ready: not enough bitstream data to read past %u (%u)\n",
1622 meta->end, ctx->bitstream_fifo.kfifo.in);
1623 return 0;
1624 }
1625 }
1626
1627 if (ctx->aborting) {
1628 coda_dbg(1, ctx, "not ready: aborting\n");
1629 return 0;
1630 }
1631
1632 coda_dbg(2, ctx, "job ready\n");
1633
1634 return 1;
1635 }
1636
coda_job_abort(void * priv)1637 static void coda_job_abort(void *priv)
1638 {
1639 struct coda_ctx *ctx = priv;
1640
1641 ctx->aborting = 1;
1642
1643 coda_dbg(1, ctx, "job abort\n");
1644 }
1645
1646 static const struct v4l2_m2m_ops coda_m2m_ops = {
1647 .device_run = coda_device_run,
1648 .job_ready = coda_job_ready,
1649 .job_abort = coda_job_abort,
1650 };
1651
set_default_params(struct coda_ctx * ctx)1652 static void set_default_params(struct coda_ctx *ctx)
1653 {
1654 unsigned int max_w, max_h, usize, csize;
1655
1656 ctx->codec = coda_find_codec(ctx->dev, ctx->cvd->src_formats[0],
1657 ctx->cvd->dst_formats[0]);
1658 max_w = min(ctx->codec->max_w, 1920U);
1659 max_h = min(ctx->codec->max_h, 1088U);
1660 usize = max_w * max_h * 3 / 2;
1661 csize = coda_estimate_sizeimage(ctx, usize, max_w, max_h);
1662
1663 ctx->params.codec_mode = ctx->codec->mode;
1664 if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_JPEG ||
1665 ctx->cvd->dst_formats[0] == V4L2_PIX_FMT_JPEG) {
1666 ctx->colorspace = V4L2_COLORSPACE_SRGB;
1667 ctx->xfer_func = V4L2_XFER_FUNC_SRGB;
1668 ctx->ycbcr_enc = V4L2_YCBCR_ENC_601;
1669 ctx->quantization = V4L2_QUANTIZATION_FULL_RANGE;
1670 } else {
1671 ctx->colorspace = V4L2_COLORSPACE_REC709;
1672 ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
1673 ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
1674 ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
1675 }
1676 ctx->params.framerate = 30;
1677
1678 /* Default formats for output and input queues */
1679 ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->cvd->src_formats[0];
1680 ctx->q_data[V4L2_M2M_DST].fourcc = ctx->cvd->dst_formats[0];
1681 ctx->q_data[V4L2_M2M_SRC].width = max_w;
1682 ctx->q_data[V4L2_M2M_SRC].height = max_h;
1683 ctx->q_data[V4L2_M2M_DST].width = max_w;
1684 ctx->q_data[V4L2_M2M_DST].height = max_h;
1685 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_YUV420) {
1686 ctx->q_data[V4L2_M2M_SRC].bytesperline = max_w;
1687 ctx->q_data[V4L2_M2M_SRC].sizeimage = usize;
1688 ctx->q_data[V4L2_M2M_DST].bytesperline = 0;
1689 ctx->q_data[V4L2_M2M_DST].sizeimage = csize;
1690 } else {
1691 ctx->q_data[V4L2_M2M_SRC].bytesperline = 0;
1692 ctx->q_data[V4L2_M2M_SRC].sizeimage = csize;
1693 ctx->q_data[V4L2_M2M_DST].bytesperline = max_w;
1694 ctx->q_data[V4L2_M2M_DST].sizeimage = usize;
1695 }
1696 ctx->q_data[V4L2_M2M_SRC].rect.width = max_w;
1697 ctx->q_data[V4L2_M2M_SRC].rect.height = max_h;
1698 ctx->q_data[V4L2_M2M_DST].rect.width = max_w;
1699 ctx->q_data[V4L2_M2M_DST].rect.height = max_h;
1700
1701 /*
1702 * Since the RBC2AXI logic only supports a single chroma plane,
1703 * macroblock tiling only works for to NV12 pixel format.
1704 */
1705 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP;
1706 }
1707
1708 /*
1709 * Queue operations
1710 */
coda_queue_setup(struct vb2_queue * vq,unsigned int * nbuffers,unsigned int * nplanes,unsigned int sizes[],struct device * alloc_devs[])1711 static int coda_queue_setup(struct vb2_queue *vq,
1712 unsigned int *nbuffers, unsigned int *nplanes,
1713 unsigned int sizes[], struct device *alloc_devs[])
1714 {
1715 struct coda_ctx *ctx = vb2_get_drv_priv(vq);
1716 struct coda_q_data *q_data;
1717 unsigned int size;
1718
1719 q_data = get_q_data(ctx, vq->type);
1720 size = q_data->sizeimage;
1721
1722 if (*nplanes)
1723 return sizes[0] < size ? -EINVAL : 0;
1724
1725 *nplanes = 1;
1726 sizes[0] = size;
1727
1728 coda_dbg(1, ctx, "get %d buffer(s) of size %d each.\n", *nbuffers,
1729 size);
1730
1731 return 0;
1732 }
1733
coda_buf_prepare(struct vb2_buffer * vb)1734 static int coda_buf_prepare(struct vb2_buffer *vb)
1735 {
1736 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1737 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1738 struct coda_q_data *q_data;
1739
1740 q_data = get_q_data(ctx, vb->vb2_queue->type);
1741 if (V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) {
1742 if (vbuf->field == V4L2_FIELD_ANY)
1743 vbuf->field = V4L2_FIELD_NONE;
1744 if (vbuf->field != V4L2_FIELD_NONE) {
1745 v4l2_warn(&ctx->dev->v4l2_dev,
1746 "%s field isn't supported\n", __func__);
1747 return -EINVAL;
1748 }
1749 }
1750
1751 if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
1752 v4l2_warn(&ctx->dev->v4l2_dev,
1753 "%s data will not fit into plane (%lu < %lu)\n",
1754 __func__, vb2_plane_size(vb, 0),
1755 (long)q_data->sizeimage);
1756 return -EINVAL;
1757 }
1758
1759 return 0;
1760 }
1761
coda_update_menu_ctrl(struct v4l2_ctrl * ctrl,int value)1762 static void coda_update_menu_ctrl(struct v4l2_ctrl *ctrl, int value)
1763 {
1764 if (!ctrl)
1765 return;
1766
1767 v4l2_ctrl_lock(ctrl);
1768
1769 /*
1770 * Extend the control range if the parsed stream contains a known but
1771 * unsupported value or level.
1772 */
1773 if (value > ctrl->maximum) {
1774 __v4l2_ctrl_modify_range(ctrl, ctrl->minimum, value,
1775 ctrl->menu_skip_mask & ~(1 << value),
1776 ctrl->default_value);
1777 } else if (value < ctrl->minimum) {
1778 __v4l2_ctrl_modify_range(ctrl, value, ctrl->maximum,
1779 ctrl->menu_skip_mask & ~(1 << value),
1780 ctrl->default_value);
1781 }
1782
1783 __v4l2_ctrl_s_ctrl(ctrl, value);
1784
1785 v4l2_ctrl_unlock(ctrl);
1786 }
1787
coda_update_profile_level_ctrls(struct coda_ctx * ctx,u8 profile_idc,u8 level_idc)1788 void coda_update_profile_level_ctrls(struct coda_ctx *ctx, u8 profile_idc,
1789 u8 level_idc)
1790 {
1791 const char * const *profile_names;
1792 const char * const *level_names;
1793 struct v4l2_ctrl *profile_ctrl;
1794 struct v4l2_ctrl *level_ctrl;
1795 const char *codec_name;
1796 u32 profile_cid;
1797 u32 level_cid;
1798 int profile;
1799 int level;
1800
1801 switch (ctx->codec->src_fourcc) {
1802 case V4L2_PIX_FMT_H264:
1803 codec_name = "H264";
1804 profile_cid = V4L2_CID_MPEG_VIDEO_H264_PROFILE;
1805 level_cid = V4L2_CID_MPEG_VIDEO_H264_LEVEL;
1806 profile_ctrl = ctx->h264_profile_ctrl;
1807 level_ctrl = ctx->h264_level_ctrl;
1808 profile = coda_h264_profile(profile_idc);
1809 level = coda_h264_level(level_idc);
1810 break;
1811 case V4L2_PIX_FMT_MPEG2:
1812 codec_name = "MPEG-2";
1813 profile_cid = V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE;
1814 level_cid = V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL;
1815 profile_ctrl = ctx->mpeg2_profile_ctrl;
1816 level_ctrl = ctx->mpeg2_level_ctrl;
1817 profile = coda_mpeg2_profile(profile_idc);
1818 level = coda_mpeg2_level(level_idc);
1819 break;
1820 case V4L2_PIX_FMT_MPEG4:
1821 codec_name = "MPEG-4";
1822 profile_cid = V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE;
1823 level_cid = V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL;
1824 profile_ctrl = ctx->mpeg4_profile_ctrl;
1825 level_ctrl = ctx->mpeg4_level_ctrl;
1826 profile = coda_mpeg4_profile(profile_idc);
1827 level = coda_mpeg4_level(level_idc);
1828 break;
1829 default:
1830 return;
1831 }
1832
1833 profile_names = v4l2_ctrl_get_menu(profile_cid);
1834 level_names = v4l2_ctrl_get_menu(level_cid);
1835
1836 if (profile < 0) {
1837 v4l2_warn(&ctx->dev->v4l2_dev, "Invalid %s profile: %u\n",
1838 codec_name, profile_idc);
1839 } else {
1840 coda_dbg(1, ctx, "Parsed %s profile: %s\n", codec_name,
1841 profile_names[profile]);
1842 coda_update_menu_ctrl(profile_ctrl, profile);
1843 }
1844
1845 if (level < 0) {
1846 v4l2_warn(&ctx->dev->v4l2_dev, "Invalid %s level: %u\n",
1847 codec_name, level_idc);
1848 } else {
1849 coda_dbg(1, ctx, "Parsed %s level: %s\n", codec_name,
1850 level_names[level]);
1851 coda_update_menu_ctrl(level_ctrl, level);
1852 }
1853 }
1854
coda_queue_source_change_event(struct coda_ctx * ctx)1855 static void coda_queue_source_change_event(struct coda_ctx *ctx)
1856 {
1857 static const struct v4l2_event source_change_event = {
1858 .type = V4L2_EVENT_SOURCE_CHANGE,
1859 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
1860 };
1861
1862 v4l2_event_queue_fh(&ctx->fh, &source_change_event);
1863 }
1864
coda_buf_queue(struct vb2_buffer * vb)1865 static void coda_buf_queue(struct vb2_buffer *vb)
1866 {
1867 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1868 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1869 struct vb2_queue *vq = vb->vb2_queue;
1870 struct coda_q_data *q_data;
1871
1872 q_data = get_q_data(ctx, vb->vb2_queue->type);
1873
1874 /*
1875 * In the decoder case, immediately try to copy the buffer into the
1876 * bitstream ringbuffer and mark it as ready to be dequeued.
1877 */
1878 if (ctx->bitstream.size && vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1879 /*
1880 * For backwards compatibility, queuing an empty buffer marks
1881 * the stream end
1882 */
1883 if (vb2_get_plane_payload(vb, 0) == 0)
1884 coda_bit_stream_end_flag(ctx);
1885
1886 if (q_data->fourcc == V4L2_PIX_FMT_H264) {
1887 /*
1888 * Unless already done, try to obtain profile_idc and
1889 * level_idc from the SPS header. This allows to decide
1890 * whether to enable reordering during sequence
1891 * initialization.
1892 */
1893 if (!ctx->params.h264_profile_idc) {
1894 coda_sps_parse_profile(ctx, vb);
1895 coda_update_profile_level_ctrls(ctx,
1896 ctx->params.h264_profile_idc,
1897 ctx->params.h264_level_idc);
1898 }
1899 }
1900
1901 mutex_lock(&ctx->bitstream_mutex);
1902 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
1903 if (vb2_is_streaming(vb->vb2_queue))
1904 /* This set buf->sequence = ctx->qsequence++ */
1905 coda_fill_bitstream(ctx, NULL);
1906 mutex_unlock(&ctx->bitstream_mutex);
1907
1908 if (!ctx->initialized) {
1909 /*
1910 * Run sequence initialization in case the queued
1911 * buffer contained headers.
1912 */
1913 if (vb2_is_streaming(vb->vb2_queue) &&
1914 ctx->ops->seq_init_work) {
1915 queue_work(ctx->dev->workqueue,
1916 &ctx->seq_init_work);
1917 flush_work(&ctx->seq_init_work);
1918 }
1919
1920 if (ctx->initialized)
1921 coda_queue_source_change_event(ctx);
1922 }
1923 } else {
1924 if ((ctx->inst_type == CODA_INST_ENCODER || !ctx->use_bit) &&
1925 vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1926 vbuf->sequence = ctx->qsequence++;
1927 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
1928 }
1929 }
1930
coda_alloc_aux_buf(struct coda_dev * dev,struct coda_aux_buf * buf,size_t size,const char * name,struct dentry * parent)1931 int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
1932 size_t size, const char *name, struct dentry *parent)
1933 {
1934 buf->vaddr = dma_alloc_coherent(dev->dev, size, &buf->paddr,
1935 GFP_KERNEL);
1936 if (!buf->vaddr) {
1937 v4l2_err(&dev->v4l2_dev,
1938 "Failed to allocate %s buffer of size %zu\n",
1939 name, size);
1940 return -ENOMEM;
1941 }
1942
1943 buf->size = size;
1944
1945 if (name && parent) {
1946 buf->blob.data = buf->vaddr;
1947 buf->blob.size = size;
1948 buf->dentry = debugfs_create_blob(name, 0444, parent,
1949 &buf->blob);
1950 }
1951
1952 return 0;
1953 }
1954
coda_free_aux_buf(struct coda_dev * dev,struct coda_aux_buf * buf)1955 void coda_free_aux_buf(struct coda_dev *dev,
1956 struct coda_aux_buf *buf)
1957 {
1958 if (buf->vaddr) {
1959 dma_free_coherent(dev->dev, buf->size, buf->vaddr, buf->paddr);
1960 buf->vaddr = NULL;
1961 buf->size = 0;
1962 debugfs_remove(buf->dentry);
1963 buf->dentry = NULL;
1964 }
1965 }
1966
coda_start_streaming(struct vb2_queue * q,unsigned int count)1967 static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
1968 {
1969 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1970 struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev;
1971 struct coda_q_data *q_data_src, *q_data_dst;
1972 struct v4l2_m2m_buffer *m2m_buf, *tmp;
1973 struct vb2_v4l2_buffer *buf;
1974 struct list_head list;
1975 int ret = 0;
1976
1977 if (count < 1)
1978 return -EINVAL;
1979
1980 coda_dbg(1, ctx, "start streaming %s\n", v4l2_type_names[q->type]);
1981
1982 INIT_LIST_HEAD(&list);
1983
1984 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1985 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1986 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1987 /* copy the buffers that were queued before streamon */
1988 mutex_lock(&ctx->bitstream_mutex);
1989 coda_fill_bitstream(ctx, &list);
1990 mutex_unlock(&ctx->bitstream_mutex);
1991
1992 if (ctx->dev->devtype->product != CODA_960 &&
1993 coda_get_bitstream_payload(ctx) < 512) {
1994 v4l2_err(v4l2_dev, "start payload < 512\n");
1995 ret = -EINVAL;
1996 goto err;
1997 }
1998
1999 if (!ctx->initialized) {
2000 /* Run sequence initialization */
2001 if (ctx->ops->seq_init_work) {
2002 queue_work(ctx->dev->workqueue,
2003 &ctx->seq_init_work);
2004 flush_work(&ctx->seq_init_work);
2005 }
2006 }
2007 }
2008
2009 /*
2010 * Check the first input JPEG buffer to determine chroma
2011 * subsampling.
2012 */
2013 if (q_data_src->fourcc == V4L2_PIX_FMT_JPEG) {
2014 buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
2015 coda_jpeg_decode_header(ctx, &buf->vb2_buf);
2016 /*
2017 * We have to start streaming even if the first buffer
2018 * does not contain a valid JPEG image. The error will
2019 * be caught during device run and will be signalled
2020 * via the capture buffer error flag.
2021 */
2022
2023 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
2024 q_data_dst->width = round_up(q_data_src->width, 16);
2025 q_data_dst->height = round_up(q_data_src->height, 16);
2026 q_data_dst->bytesperline = q_data_dst->width;
2027 if (ctx->params.jpeg_chroma_subsampling ==
2028 V4L2_JPEG_CHROMA_SUBSAMPLING_420) {
2029 q_data_dst->sizeimage =
2030 q_data_dst->bytesperline *
2031 q_data_dst->height * 3 / 2;
2032 if (q_data_dst->fourcc != V4L2_PIX_FMT_YUV420)
2033 q_data_dst->fourcc = V4L2_PIX_FMT_NV12;
2034 } else {
2035 q_data_dst->sizeimage =
2036 q_data_dst->bytesperline *
2037 q_data_dst->height * 2;
2038 q_data_dst->fourcc = V4L2_PIX_FMT_YUV422P;
2039 }
2040 q_data_dst->rect.left = 0;
2041 q_data_dst->rect.top = 0;
2042 q_data_dst->rect.width = q_data_src->width;
2043 q_data_dst->rect.height = q_data_src->height;
2044 }
2045 ctx->streamon_out = 1;
2046 } else {
2047 ctx->streamon_cap = 1;
2048 }
2049
2050 /* Don't start the coda unless both queues are on */
2051 if (!(ctx->streamon_out && ctx->streamon_cap))
2052 goto out;
2053
2054 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
2055 if ((q_data_src->rect.width != q_data_dst->width &&
2056 round_up(q_data_src->rect.width, 16) != q_data_dst->width) ||
2057 (q_data_src->rect.height != q_data_dst->height &&
2058 round_up(q_data_src->rect.height, 16) != q_data_dst->height)) {
2059 v4l2_err(v4l2_dev, "can't convert %dx%d to %dx%d\n",
2060 q_data_src->rect.width, q_data_src->rect.height,
2061 q_data_dst->width, q_data_dst->height);
2062 ret = -EINVAL;
2063 goto err;
2064 }
2065
2066 /* Allow BIT decoder device_run with no new buffers queued */
2067 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
2068 v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true);
2069
2070 ctx->gopcounter = ctx->params.gop_size - 1;
2071
2072 if (q_data_dst->fourcc == V4L2_PIX_FMT_JPEG)
2073 ctx->params.gop_size = 1;
2074 ctx->gopcounter = ctx->params.gop_size - 1;
2075 /* Only decoders have this control */
2076 if (ctx->mb_err_cnt_ctrl)
2077 v4l2_ctrl_s_ctrl(ctx->mb_err_cnt_ctrl, 0);
2078
2079 ret = ctx->ops->start_streaming(ctx);
2080 if (ctx->inst_type == CODA_INST_DECODER) {
2081 if (ret == -EAGAIN)
2082 goto out;
2083 }
2084 if (ret < 0)
2085 goto err;
2086
2087 out:
2088 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
2089 list_for_each_entry_safe(m2m_buf, tmp, &list, list) {
2090 list_del(&m2m_buf->list);
2091 v4l2_m2m_buf_done(&m2m_buf->vb, VB2_BUF_STATE_DONE);
2092 }
2093 }
2094 return 0;
2095
2096 err:
2097 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
2098 list_for_each_entry_safe(m2m_buf, tmp, &list, list) {
2099 list_del(&m2m_buf->list);
2100 v4l2_m2m_buf_done(&m2m_buf->vb, VB2_BUF_STATE_QUEUED);
2101 }
2102 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
2103 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
2104 } else {
2105 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
2106 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
2107 }
2108 return ret;
2109 }
2110
coda_stop_streaming(struct vb2_queue * q)2111 static void coda_stop_streaming(struct vb2_queue *q)
2112 {
2113 struct coda_ctx *ctx = vb2_get_drv_priv(q);
2114 struct coda_dev *dev = ctx->dev;
2115 struct vb2_v4l2_buffer *buf;
2116 bool stop;
2117
2118 stop = ctx->streamon_out && ctx->streamon_cap;
2119
2120 coda_dbg(1, ctx, "stop streaming %s\n", v4l2_type_names[q->type]);
2121
2122 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
2123 ctx->streamon_out = 0;
2124
2125 coda_bit_stream_end_flag(ctx);
2126
2127 ctx->qsequence = 0;
2128
2129 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
2130 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
2131 } else {
2132 ctx->streamon_cap = 0;
2133
2134 ctx->osequence = 0;
2135 ctx->sequence_offset = 0;
2136
2137 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
2138 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
2139 }
2140
2141 if (stop) {
2142 struct coda_buffer_meta *meta;
2143
2144 if (ctx->ops->seq_end_work) {
2145 queue_work(dev->workqueue, &ctx->seq_end_work);
2146 flush_work(&ctx->seq_end_work);
2147 }
2148 spin_lock(&ctx->buffer_meta_lock);
2149 while (!list_empty(&ctx->buffer_meta_list)) {
2150 meta = list_first_entry(&ctx->buffer_meta_list,
2151 struct coda_buffer_meta, list);
2152 list_del(&meta->list);
2153 kfree(meta);
2154 }
2155 ctx->num_metas = 0;
2156 spin_unlock(&ctx->buffer_meta_lock);
2157 kfifo_init(&ctx->bitstream_fifo,
2158 ctx->bitstream.vaddr, ctx->bitstream.size);
2159 ctx->runcounter = 0;
2160 ctx->aborting = 0;
2161 ctx->hold = false;
2162 }
2163
2164 if (!ctx->streamon_out && !ctx->streamon_cap)
2165 ctx->bit_stream_param &= ~CODA_BIT_STREAM_END_FLAG;
2166 }
2167
2168 static const struct vb2_ops coda_qops = {
2169 .queue_setup = coda_queue_setup,
2170 .buf_prepare = coda_buf_prepare,
2171 .buf_queue = coda_buf_queue,
2172 .start_streaming = coda_start_streaming,
2173 .stop_streaming = coda_stop_streaming,
2174 .wait_prepare = vb2_ops_wait_prepare,
2175 .wait_finish = vb2_ops_wait_finish,
2176 };
2177
coda_s_ctrl(struct v4l2_ctrl * ctrl)2178 static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
2179 {
2180 const char * const *val_names = v4l2_ctrl_get_menu(ctrl->id);
2181 struct coda_ctx *ctx =
2182 container_of(ctrl->handler, struct coda_ctx, ctrls);
2183
2184 if (val_names)
2185 coda_dbg(2, ctx, "s_ctrl: id = 0x%x, name = \"%s\", val = %d (\"%s\")\n",
2186 ctrl->id, ctrl->name, ctrl->val, val_names[ctrl->val]);
2187 else
2188 coda_dbg(2, ctx, "s_ctrl: id = 0x%x, name = \"%s\", val = %d\n",
2189 ctrl->id, ctrl->name, ctrl->val);
2190
2191 switch (ctrl->id) {
2192 case V4L2_CID_HFLIP:
2193 if (ctrl->val)
2194 ctx->params.rot_mode |= CODA_MIR_HOR;
2195 else
2196 ctx->params.rot_mode &= ~CODA_MIR_HOR;
2197 break;
2198 case V4L2_CID_VFLIP:
2199 if (ctrl->val)
2200 ctx->params.rot_mode |= CODA_MIR_VER;
2201 else
2202 ctx->params.rot_mode &= ~CODA_MIR_VER;
2203 break;
2204 case V4L2_CID_MPEG_VIDEO_BITRATE:
2205 ctx->params.bitrate = ctrl->val / 1000;
2206 ctx->params.bitrate_changed = true;
2207 break;
2208 case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
2209 ctx->params.gop_size = ctrl->val;
2210 break;
2211 case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
2212 ctx->params.h264_intra_qp = ctrl->val;
2213 ctx->params.h264_intra_qp_changed = true;
2214 break;
2215 case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
2216 ctx->params.h264_inter_qp = ctrl->val;
2217 break;
2218 case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
2219 ctx->params.h264_min_qp = ctrl->val;
2220 break;
2221 case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
2222 ctx->params.h264_max_qp = ctrl->val;
2223 break;
2224 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA:
2225 ctx->params.h264_slice_alpha_c0_offset_div2 = ctrl->val;
2226 break;
2227 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA:
2228 ctx->params.h264_slice_beta_offset_div2 = ctrl->val;
2229 break;
2230 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
2231 ctx->params.h264_disable_deblocking_filter_idc = ctrl->val;
2232 break;
2233 case V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION:
2234 ctx->params.h264_constrained_intra_pred_flag = ctrl->val;
2235 break;
2236 case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE:
2237 ctx->params.frame_rc_enable = ctrl->val;
2238 break;
2239 case V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE:
2240 ctx->params.mb_rc_enable = ctrl->val;
2241 break;
2242 case V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET:
2243 ctx->params.h264_chroma_qp_index_offset = ctrl->val;
2244 break;
2245 case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
2246 /* TODO: switch between baseline and constrained baseline */
2247 if (ctx->inst_type == CODA_INST_ENCODER)
2248 ctx->params.h264_profile_idc = 66;
2249 break;
2250 case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
2251 /* nothing to do, this is set by the encoder */
2252 break;
2253 case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
2254 ctx->params.mpeg4_intra_qp = ctrl->val;
2255 break;
2256 case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
2257 ctx->params.mpeg4_inter_qp = ctrl->val;
2258 break;
2259 case V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE:
2260 case V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL:
2261 case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE:
2262 case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL:
2263 /* nothing to do, these are fixed */
2264 break;
2265 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
2266 ctx->params.slice_mode = ctrl->val;
2267 ctx->params.slice_mode_changed = true;
2268 break;
2269 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
2270 ctx->params.slice_max_mb = ctrl->val;
2271 ctx->params.slice_mode_changed = true;
2272 break;
2273 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
2274 ctx->params.slice_max_bits = ctrl->val * 8;
2275 ctx->params.slice_mode_changed = true;
2276 break;
2277 case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
2278 break;
2279 case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB:
2280 ctx->params.intra_refresh = ctrl->val;
2281 ctx->params.intra_refresh_changed = true;
2282 break;
2283 case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
2284 ctx->params.force_ipicture = true;
2285 break;
2286 case V4L2_CID_JPEG_COMPRESSION_QUALITY:
2287 coda_set_jpeg_compression_quality(ctx, ctrl->val);
2288 break;
2289 case V4L2_CID_JPEG_RESTART_INTERVAL:
2290 ctx->params.jpeg_restart_interval = ctrl->val;
2291 break;
2292 case V4L2_CID_MPEG_VIDEO_VBV_DELAY:
2293 ctx->params.vbv_delay = ctrl->val;
2294 break;
2295 case V4L2_CID_MPEG_VIDEO_VBV_SIZE:
2296 ctx->params.vbv_size = min(ctrl->val * 8192, 0x7fffffff);
2297 break;
2298 default:
2299 coda_dbg(1, ctx, "Invalid control, id=%d, val=%d\n",
2300 ctrl->id, ctrl->val);
2301 return -EINVAL;
2302 }
2303
2304 return 0;
2305 }
2306
2307 static const struct v4l2_ctrl_ops coda_ctrl_ops = {
2308 .s_ctrl = coda_s_ctrl,
2309 };
2310
coda_encode_ctrls(struct coda_ctx * ctx)2311 static void coda_encode_ctrls(struct coda_ctx *ctx)
2312 {
2313 int max_gop_size = (ctx->dev->devtype->product == CODA_DX6) ? 60 : 99;
2314
2315 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2316 V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1000, 0);
2317 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2318 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 0, max_gop_size, 1, 16);
2319 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2320 V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 0, 51, 1, 25);
2321 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2322 V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 0, 51, 1, 25);
2323 if (ctx->dev->devtype->product != CODA_960) {
2324 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2325 V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 51, 1, 12);
2326 }
2327 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2328 V4L2_CID_MPEG_VIDEO_H264_MAX_QP, 0, 51, 1, 51);
2329 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2330 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA, -6, 6, 1, 0);
2331 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2332 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA, -6, 6, 1, 0);
2333 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2334 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
2335 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY,
2336 0x0, V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
2337 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2338 V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION, 0, 1, 1,
2339 0);
2340 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2341 V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE, 0, 1, 1, 1);
2342 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2343 V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE, 0, 1, 1, 1);
2344 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2345 V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET, -12, 12, 1, 0);
2346 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2347 V4L2_CID_MPEG_VIDEO_H264_PROFILE,
2348 V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE, 0x0,
2349 V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE);
2350 if (ctx->dev->devtype->product == CODA_HX4 ||
2351 ctx->dev->devtype->product == CODA_7541) {
2352 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2353 V4L2_CID_MPEG_VIDEO_H264_LEVEL,
2354 V4L2_MPEG_VIDEO_H264_LEVEL_3_1,
2355 ~((1 << V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
2356 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
2357 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_1)),
2358 V4L2_MPEG_VIDEO_H264_LEVEL_3_1);
2359 }
2360 if (ctx->dev->devtype->product == CODA_960) {
2361 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2362 V4L2_CID_MPEG_VIDEO_H264_LEVEL,
2363 V4L2_MPEG_VIDEO_H264_LEVEL_4_2,
2364 ~((1 << V4L2_MPEG_VIDEO_H264_LEVEL_1_0) |
2365 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
2366 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
2367 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_1) |
2368 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_3_2) |
2369 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_4_0) |
2370 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_4_1) |
2371 (1 << V4L2_MPEG_VIDEO_H264_LEVEL_4_2)),
2372 V4L2_MPEG_VIDEO_H264_LEVEL_4_0);
2373 }
2374 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2375 V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
2376 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2377 V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
2378 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2379 V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE,
2380 V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE, 0x0,
2381 V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE);
2382 if (ctx->dev->devtype->product == CODA_HX4 ||
2383 ctx->dev->devtype->product == CODA_7541 ||
2384 ctx->dev->devtype->product == CODA_960) {
2385 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2386 V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL,
2387 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5,
2388 ~(1 << V4L2_MPEG_VIDEO_MPEG4_LEVEL_5),
2389 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5);
2390 }
2391 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2392 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
2393 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_BYTES, 0x0,
2394 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
2395 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2396 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
2397 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2398 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1,
2399 500);
2400 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2401 V4L2_CID_MPEG_VIDEO_HEADER_MODE,
2402 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
2403 (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE),
2404 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
2405 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2406 V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB, 0,
2407 1920 * 1088 / 256, 1, 0);
2408 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2409 V4L2_CID_MPEG_VIDEO_VBV_DELAY, 0, 0x7fff, 1, 0);
2410 /*
2411 * The maximum VBV size value is 0x7fffffff bits,
2412 * one bit less than 262144 KiB
2413 */
2414 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2415 V4L2_CID_MPEG_VIDEO_VBV_SIZE, 0, 262144, 1, 0);
2416 }
2417
coda_jpeg_encode_ctrls(struct coda_ctx * ctx)2418 static void coda_jpeg_encode_ctrls(struct coda_ctx *ctx)
2419 {
2420 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2421 V4L2_CID_JPEG_COMPRESSION_QUALITY, 5, 100, 1, 50);
2422 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2423 V4L2_CID_JPEG_RESTART_INTERVAL, 0, 100, 1, 0);
2424 }
2425
coda_decode_ctrls(struct coda_ctx * ctx)2426 static void coda_decode_ctrls(struct coda_ctx *ctx)
2427 {
2428 u8 max;
2429
2430 ctx->h264_profile_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2431 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_H264_PROFILE,
2432 V4L2_MPEG_VIDEO_H264_PROFILE_HIGH,
2433 ~((1 << V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE) |
2434 (1 << V4L2_MPEG_VIDEO_H264_PROFILE_MAIN) |
2435 (1 << V4L2_MPEG_VIDEO_H264_PROFILE_HIGH)),
2436 V4L2_MPEG_VIDEO_H264_PROFILE_HIGH);
2437 if (ctx->h264_profile_ctrl)
2438 ctx->h264_profile_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2439
2440 if (ctx->dev->devtype->product == CODA_HX4 ||
2441 ctx->dev->devtype->product == CODA_7541)
2442 max = V4L2_MPEG_VIDEO_H264_LEVEL_4_0;
2443 else if (ctx->dev->devtype->product == CODA_960)
2444 max = V4L2_MPEG_VIDEO_H264_LEVEL_4_1;
2445 else
2446 return;
2447 ctx->h264_level_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2448 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_H264_LEVEL, max, 0, max);
2449 if (ctx->h264_level_ctrl)
2450 ctx->h264_level_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2451
2452 ctx->mpeg2_profile_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2453 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE,
2454 V4L2_MPEG_VIDEO_MPEG2_PROFILE_HIGH, 0,
2455 V4L2_MPEG_VIDEO_MPEG2_PROFILE_HIGH);
2456 if (ctx->mpeg2_profile_ctrl)
2457 ctx->mpeg2_profile_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2458
2459 ctx->mpeg2_level_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2460 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL,
2461 V4L2_MPEG_VIDEO_MPEG2_LEVEL_HIGH, 0,
2462 V4L2_MPEG_VIDEO_MPEG2_LEVEL_HIGH);
2463 if (ctx->mpeg2_level_ctrl)
2464 ctx->mpeg2_level_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2465
2466 ctx->mpeg4_profile_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2467 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE,
2468 V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY, 0,
2469 V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY);
2470 if (ctx->mpeg4_profile_ctrl)
2471 ctx->mpeg4_profile_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2472
2473 ctx->mpeg4_level_ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrls,
2474 &coda_ctrl_ops, V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL,
2475 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5, 0,
2476 V4L2_MPEG_VIDEO_MPEG4_LEVEL_5);
2477 if (ctx->mpeg4_level_ctrl)
2478 ctx->mpeg4_level_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2479 }
2480
2481 static const struct v4l2_ctrl_config coda_mb_err_cnt_ctrl_config = {
2482 .id = V4L2_CID_CODA_MB_ERR_CNT,
2483 .name = "Macroblocks Error Count",
2484 .type = V4L2_CTRL_TYPE_INTEGER,
2485 .min = 0,
2486 .max = 0x7fffffff,
2487 .step = 1,
2488 };
2489
coda_ctrls_setup(struct coda_ctx * ctx)2490 static int coda_ctrls_setup(struct coda_ctx *ctx)
2491 {
2492 v4l2_ctrl_handler_init(&ctx->ctrls, 2);
2493
2494 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2495 V4L2_CID_HFLIP, 0, 1, 1, 0);
2496 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2497 V4L2_CID_VFLIP, 0, 1, 1, 0);
2498 if (ctx->inst_type == CODA_INST_ENCODER) {
2499 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2500 V4L2_CID_MIN_BUFFERS_FOR_OUTPUT,
2501 1, 1, 1, 1);
2502 if (ctx->cvd->dst_formats[0] == V4L2_PIX_FMT_JPEG)
2503 coda_jpeg_encode_ctrls(ctx);
2504 else
2505 coda_encode_ctrls(ctx);
2506 } else {
2507 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2508 V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
2509 1, 1, 1, 1);
2510 if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_H264)
2511 coda_decode_ctrls(ctx);
2512
2513 ctx->mb_err_cnt_ctrl = v4l2_ctrl_new_custom(&ctx->ctrls,
2514 &coda_mb_err_cnt_ctrl_config,
2515 NULL);
2516 if (ctx->mb_err_cnt_ctrl)
2517 ctx->mb_err_cnt_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2518 }
2519
2520 if (ctx->ctrls.error) {
2521 v4l2_err(&ctx->dev->v4l2_dev,
2522 "control initialization error (%d)",
2523 ctx->ctrls.error);
2524 return -EINVAL;
2525 }
2526
2527 return v4l2_ctrl_handler_setup(&ctx->ctrls);
2528 }
2529
coda_queue_init(struct coda_ctx * ctx,struct vb2_queue * vq)2530 static int coda_queue_init(struct coda_ctx *ctx, struct vb2_queue *vq)
2531 {
2532 vq->drv_priv = ctx;
2533 vq->ops = &coda_qops;
2534 vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
2535 vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
2536 vq->lock = &ctx->dev->dev_mutex;
2537 /* One way to indicate end-of-stream for coda is to set the
2538 * bytesused == 0. However by default videobuf2 handles bytesused
2539 * equal to 0 as a special case and changes its value to the size
2540 * of the buffer. Set the allow_zero_bytesused flag, so
2541 * that videobuf2 will keep the value of bytesused intact.
2542 */
2543 vq->allow_zero_bytesused = 1;
2544 /*
2545 * We might be fine with no buffers on some of the queues, but that
2546 * would need to be reflected in job_ready(). Currently we expect all
2547 * queues to have at least one buffer queued.
2548 */
2549 vq->min_queued_buffers = 1;
2550 vq->dev = ctx->dev->dev;
2551
2552 return vb2_queue_init(vq);
2553 }
2554
coda_encoder_queue_init(void * priv,struct vb2_queue * src_vq,struct vb2_queue * dst_vq)2555 int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
2556 struct vb2_queue *dst_vq)
2557 {
2558 int ret;
2559
2560 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2561 src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2562 src_vq->mem_ops = &vb2_dma_contig_memops;
2563
2564 ret = coda_queue_init(priv, src_vq);
2565 if (ret)
2566 return ret;
2567
2568 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2569 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2570 dst_vq->mem_ops = &vb2_dma_contig_memops;
2571
2572 return coda_queue_init(priv, dst_vq);
2573 }
2574
coda_decoder_queue_init(void * priv,struct vb2_queue * src_vq,struct vb2_queue * dst_vq)2575 int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
2576 struct vb2_queue *dst_vq)
2577 {
2578 int ret;
2579
2580 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2581 src_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
2582 src_vq->mem_ops = &vb2_vmalloc_memops;
2583
2584 ret = coda_queue_init(priv, src_vq);
2585 if (ret)
2586 return ret;
2587
2588 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2589 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
2590 dst_vq->dma_attrs = DMA_ATTR_NO_KERNEL_MAPPING;
2591 dst_vq->mem_ops = &vb2_dma_contig_memops;
2592
2593 return coda_queue_init(priv, dst_vq);
2594 }
2595
2596 /*
2597 * File operations
2598 */
2599
coda_open(struct file * file)2600 static int coda_open(struct file *file)
2601 {
2602 struct video_device *vdev = video_devdata(file);
2603 struct coda_dev *dev = video_get_drvdata(vdev);
2604 struct coda_ctx *ctx;
2605 unsigned int max = ~0;
2606 char *name;
2607 int ret;
2608 int idx;
2609
2610 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
2611 if (!ctx)
2612 return -ENOMEM;
2613
2614 if (dev->devtype->product == CODA_DX6)
2615 max = CODADX6_MAX_INSTANCES - 1;
2616 idx = ida_alloc_max(&dev->ida, max, GFP_KERNEL);
2617 if (idx < 0) {
2618 ret = idx;
2619 goto err_coda_max;
2620 }
2621
2622 name = kasprintf(GFP_KERNEL, "context%d", idx);
2623 if (!name) {
2624 ret = -ENOMEM;
2625 goto err_coda_name_init;
2626 }
2627
2628 ctx->debugfs_entry = debugfs_create_dir(name, dev->debugfs_root);
2629 kfree(name);
2630
2631 ctx->cvd = to_coda_video_device(vdev);
2632 ctx->inst_type = ctx->cvd->type;
2633 ctx->ops = ctx->cvd->ops;
2634 ctx->use_bit = !ctx->cvd->direct;
2635 init_completion(&ctx->completion);
2636 INIT_WORK(&ctx->pic_run_work, coda_pic_run_work);
2637 if (ctx->ops->seq_init_work)
2638 INIT_WORK(&ctx->seq_init_work, ctx->ops->seq_init_work);
2639 if (ctx->ops->seq_end_work)
2640 INIT_WORK(&ctx->seq_end_work, ctx->ops->seq_end_work);
2641 v4l2_fh_init(&ctx->fh, video_devdata(file));
2642 file->private_data = &ctx->fh;
2643 v4l2_fh_add(&ctx->fh);
2644 ctx->dev = dev;
2645 ctx->idx = idx;
2646
2647 coda_dbg(1, ctx, "open instance (%p)\n", ctx);
2648
2649 switch (dev->devtype->product) {
2650 case CODA_960:
2651 /*
2652 * Enabling the BWB when decoding can hang the firmware with
2653 * certain streams. The issue was tracked as ENGR00293425 by
2654 * Freescale. As a workaround, disable BWB for all decoders.
2655 * The enable_bwb module parameter allows to override this.
2656 */
2657 if (enable_bwb || ctx->inst_type == CODA_INST_ENCODER)
2658 ctx->frame_mem_ctrl = CODA9_FRAME_ENABLE_BWB;
2659 fallthrough;
2660 case CODA_HX4:
2661 case CODA_7541:
2662 ctx->reg_idx = 0;
2663 break;
2664 default:
2665 ctx->reg_idx = idx;
2666 }
2667 if (ctx->dev->vdoa && !disable_vdoa) {
2668 ctx->vdoa = vdoa_context_create(dev->vdoa);
2669 if (!ctx->vdoa)
2670 v4l2_warn(&dev->v4l2_dev,
2671 "Failed to create vdoa context: not using vdoa");
2672 }
2673 ctx->use_vdoa = false;
2674
2675 /* Power up and upload firmware if necessary */
2676 ret = pm_runtime_resume_and_get(dev->dev);
2677 if (ret < 0) {
2678 v4l2_err(&dev->v4l2_dev, "failed to power up: %d\n", ret);
2679 goto err_pm_get;
2680 }
2681
2682 ret = clk_prepare_enable(dev->clk_per);
2683 if (ret)
2684 goto err_clk_enable;
2685
2686 ret = clk_prepare_enable(dev->clk_ahb);
2687 if (ret)
2688 goto err_clk_ahb;
2689
2690 set_default_params(ctx);
2691 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
2692 ctx->ops->queue_init);
2693 if (IS_ERR(ctx->fh.m2m_ctx)) {
2694 ret = PTR_ERR(ctx->fh.m2m_ctx);
2695
2696 v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
2697 __func__, ret);
2698 goto err_ctx_init;
2699 }
2700
2701 ret = coda_ctrls_setup(ctx);
2702 if (ret) {
2703 v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
2704 goto err_ctrls_setup;
2705 }
2706
2707 ctx->fh.ctrl_handler = &ctx->ctrls;
2708
2709 mutex_init(&ctx->bitstream_mutex);
2710 mutex_init(&ctx->buffer_mutex);
2711 mutex_init(&ctx->wakeup_mutex);
2712 INIT_LIST_HEAD(&ctx->buffer_meta_list);
2713 spin_lock_init(&ctx->buffer_meta_lock);
2714
2715 return 0;
2716
2717 err_ctrls_setup:
2718 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
2719 err_ctx_init:
2720 clk_disable_unprepare(dev->clk_ahb);
2721 err_clk_ahb:
2722 clk_disable_unprepare(dev->clk_per);
2723 err_clk_enable:
2724 pm_runtime_put_sync(dev->dev);
2725 err_pm_get:
2726 v4l2_fh_del(&ctx->fh);
2727 v4l2_fh_exit(&ctx->fh);
2728 err_coda_name_init:
2729 ida_free(&dev->ida, ctx->idx);
2730 err_coda_max:
2731 kfree(ctx);
2732 return ret;
2733 }
2734
coda_release(struct file * file)2735 static int coda_release(struct file *file)
2736 {
2737 struct coda_dev *dev = video_drvdata(file);
2738 struct coda_ctx *ctx = fh_to_ctx(file->private_data);
2739
2740 coda_dbg(1, ctx, "release instance (%p)\n", ctx);
2741
2742 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
2743 coda_bit_stream_end_flag(ctx);
2744
2745 /* If this instance is running, call .job_abort and wait for it to end */
2746 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
2747
2748 if (ctx->vdoa)
2749 vdoa_context_destroy(ctx->vdoa);
2750
2751 /* In case the instance was not running, we still need to call SEQ_END */
2752 if (ctx->ops->seq_end_work) {
2753 queue_work(dev->workqueue, &ctx->seq_end_work);
2754 flush_work(&ctx->seq_end_work);
2755 }
2756
2757 if (ctx->dev->devtype->product == CODA_DX6)
2758 coda_free_aux_buf(dev, &ctx->workbuf);
2759
2760 v4l2_ctrl_handler_free(&ctx->ctrls);
2761 clk_disable_unprepare(dev->clk_ahb);
2762 clk_disable_unprepare(dev->clk_per);
2763 pm_runtime_put_sync(dev->dev);
2764 v4l2_fh_del(&ctx->fh);
2765 v4l2_fh_exit(&ctx->fh);
2766 ida_free(&dev->ida, ctx->idx);
2767 if (ctx->ops->release)
2768 ctx->ops->release(ctx);
2769 debugfs_remove_recursive(ctx->debugfs_entry);
2770 kfree(ctx);
2771
2772 return 0;
2773 }
2774
2775 static const struct v4l2_file_operations coda_fops = {
2776 .owner = THIS_MODULE,
2777 .open = coda_open,
2778 .release = coda_release,
2779 .poll = v4l2_m2m_fop_poll,
2780 .unlocked_ioctl = video_ioctl2,
2781 .mmap = v4l2_m2m_fop_mmap,
2782 };
2783
coda_hw_init(struct coda_dev * dev)2784 static int coda_hw_init(struct coda_dev *dev)
2785 {
2786 u32 data;
2787 u16 *p;
2788 int i, ret;
2789
2790 ret = clk_prepare_enable(dev->clk_per);
2791 if (ret)
2792 goto err_clk_per;
2793
2794 ret = clk_prepare_enable(dev->clk_ahb);
2795 if (ret)
2796 goto err_clk_ahb;
2797
2798 reset_control_reset(dev->rstc);
2799
2800 /*
2801 * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
2802 * The 16-bit chars in the code buffer are in memory access
2803 * order, re-sort them to CODA order for register download.
2804 * Data in this SRAM survives a reboot.
2805 */
2806 p = (u16 *)dev->codebuf.vaddr;
2807 if (dev->devtype->product == CODA_DX6) {
2808 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2809 data = CODA_DOWN_ADDRESS_SET(i) |
2810 CODA_DOWN_DATA_SET(p[i ^ 1]);
2811 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2812 }
2813 } else {
2814 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2815 data = CODA_DOWN_ADDRESS_SET(i) |
2816 CODA_DOWN_DATA_SET(p[round_down(i, 4) +
2817 3 - (i % 4)]);
2818 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2819 }
2820 }
2821
2822 /* Clear registers */
2823 for (i = 0; i < 64; i++)
2824 coda_write(dev, 0, CODA_REG_BIT_CODE_BUF_ADDR + i * 4);
2825
2826 /* Tell the BIT where to find everything it needs */
2827 if (dev->devtype->product == CODA_960 ||
2828 dev->devtype->product == CODA_7541 ||
2829 dev->devtype->product == CODA_HX4) {
2830 coda_write(dev, dev->tempbuf.paddr,
2831 CODA_REG_BIT_TEMP_BUF_ADDR);
2832 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
2833 } else {
2834 coda_write(dev, dev->workbuf.paddr,
2835 CODA_REG_BIT_WORK_BUF_ADDR);
2836 }
2837 coda_write(dev, dev->codebuf.paddr,
2838 CODA_REG_BIT_CODE_BUF_ADDR);
2839 coda_write(dev, 0, CODA_REG_BIT_CODE_RUN);
2840
2841 /* Set default values */
2842 switch (dev->devtype->product) {
2843 case CODA_DX6:
2844 coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH,
2845 CODA_REG_BIT_STREAM_CTRL);
2846 break;
2847 default:
2848 coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH,
2849 CODA_REG_BIT_STREAM_CTRL);
2850 }
2851 if (dev->devtype->product == CODA_960)
2852 coda_write(dev, CODA9_FRAME_ENABLE_BWB,
2853 CODA_REG_BIT_FRAME_MEM_CTRL);
2854 else
2855 coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL);
2856
2857 if (dev->devtype->product != CODA_DX6)
2858 coda_write(dev, 0, CODA7_REG_BIT_AXI_SRAM_USE);
2859
2860 coda_write(dev, CODA_INT_INTERRUPT_ENABLE,
2861 CODA_REG_BIT_INT_ENABLE);
2862
2863 /* Reset VPU and start processor */
2864 data = coda_read(dev, CODA_REG_BIT_CODE_RESET);
2865 data |= CODA_REG_RESET_ENABLE;
2866 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2867 udelay(10);
2868 data &= ~CODA_REG_RESET_ENABLE;
2869 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2870 coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
2871
2872 clk_disable_unprepare(dev->clk_ahb);
2873 clk_disable_unprepare(dev->clk_per);
2874
2875 return 0;
2876
2877 err_clk_ahb:
2878 clk_disable_unprepare(dev->clk_per);
2879 err_clk_per:
2880 return ret;
2881 }
2882
coda_register_device(struct coda_dev * dev,int i)2883 static int coda_register_device(struct coda_dev *dev, int i)
2884 {
2885 struct video_device *vfd = &dev->vfd[i];
2886 const char *name;
2887 int ret;
2888
2889 if (i >= dev->devtype->num_vdevs)
2890 return -EINVAL;
2891 name = dev->devtype->vdevs[i]->name;
2892
2893 strscpy(vfd->name, dev->devtype->vdevs[i]->name, sizeof(vfd->name));
2894 vfd->fops = &coda_fops;
2895 vfd->ioctl_ops = &coda_ioctl_ops;
2896 vfd->release = video_device_release_empty;
2897 vfd->lock = &dev->dev_mutex;
2898 vfd->v4l2_dev = &dev->v4l2_dev;
2899 vfd->vfl_dir = VFL_DIR_M2M;
2900 vfd->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
2901 video_set_drvdata(vfd, dev);
2902
2903 /* Not applicable, use the selection API instead */
2904 v4l2_disable_ioctl(vfd, VIDIOC_CROPCAP);
2905 v4l2_disable_ioctl(vfd, VIDIOC_G_CROP);
2906 v4l2_disable_ioctl(vfd, VIDIOC_S_CROP);
2907
2908 if (dev->devtype->vdevs[i]->type == CODA_INST_ENCODER) {
2909 v4l2_disable_ioctl(vfd, VIDIOC_DECODER_CMD);
2910 v4l2_disable_ioctl(vfd, VIDIOC_TRY_DECODER_CMD);
2911 if (dev->devtype->vdevs[i]->dst_formats[0] == V4L2_PIX_FMT_JPEG) {
2912 v4l2_disable_ioctl(vfd, VIDIOC_ENUM_FRAMEINTERVALS);
2913 v4l2_disable_ioctl(vfd, VIDIOC_G_PARM);
2914 v4l2_disable_ioctl(vfd, VIDIOC_S_PARM);
2915 }
2916 } else {
2917 v4l2_disable_ioctl(vfd, VIDIOC_ENCODER_CMD);
2918 v4l2_disable_ioctl(vfd, VIDIOC_TRY_ENCODER_CMD);
2919 v4l2_disable_ioctl(vfd, VIDIOC_ENUM_FRAMESIZES);
2920 v4l2_disable_ioctl(vfd, VIDIOC_ENUM_FRAMEINTERVALS);
2921 v4l2_disable_ioctl(vfd, VIDIOC_G_PARM);
2922 v4l2_disable_ioctl(vfd, VIDIOC_S_PARM);
2923 }
2924
2925 ret = video_register_device(vfd, VFL_TYPE_VIDEO, 0);
2926 if (!ret)
2927 v4l2_info(&dev->v4l2_dev, "%s registered as %s\n",
2928 name, video_device_node_name(vfd));
2929 return ret;
2930 }
2931
coda_copy_firmware(struct coda_dev * dev,const u8 * const buf,size_t size)2932 static void coda_copy_firmware(struct coda_dev *dev, const u8 * const buf,
2933 size_t size)
2934 {
2935 u32 *src = (u32 *)buf;
2936
2937 /* Check if the firmware has a 16-byte Freescale header, skip it */
2938 if (buf[0] == 'M' && buf[1] == 'X')
2939 src += 4;
2940 /*
2941 * Check whether the firmware is in native order or pre-reordered for
2942 * memory access. The first instruction opcode always is 0xe40e.
2943 */
2944 if (__le16_to_cpup((__le16 *)src) == 0xe40e) {
2945 u32 *dst = dev->codebuf.vaddr;
2946 int i;
2947
2948 /* Firmware in native order, reorder while copying */
2949 if (dev->devtype->product == CODA_DX6) {
2950 for (i = 0; i < (size - 16) / 4; i++)
2951 dst[i] = (src[i] << 16) | (src[i] >> 16);
2952 } else {
2953 for (i = 0; i < (size - 16) / 4; i += 2) {
2954 dst[i] = (src[i + 1] << 16) | (src[i + 1] >> 16);
2955 dst[i + 1] = (src[i] << 16) | (src[i] >> 16);
2956 }
2957 }
2958 } else {
2959 /* Copy the already reordered firmware image */
2960 memcpy(dev->codebuf.vaddr, src, size);
2961 }
2962 }
2963
2964 static void coda_fw_callback(const struct firmware *fw, void *context);
2965
coda_firmware_request(struct coda_dev * dev)2966 static int coda_firmware_request(struct coda_dev *dev)
2967 {
2968 char *fw;
2969
2970 if (dev->firmware >= ARRAY_SIZE(dev->devtype->firmware))
2971 return -EINVAL;
2972
2973 fw = dev->devtype->firmware[dev->firmware];
2974
2975 dev_dbg(dev->dev, "requesting firmware '%s' for %s\n", fw,
2976 coda_product_name(dev->devtype->product));
2977
2978 return request_firmware_nowait(THIS_MODULE, true, fw, dev->dev,
2979 GFP_KERNEL, dev, coda_fw_callback);
2980 }
2981
coda_fw_callback(const struct firmware * fw,void * context)2982 static void coda_fw_callback(const struct firmware *fw, void *context)
2983 {
2984 struct coda_dev *dev = context;
2985 int i, ret;
2986
2987 if (!fw) {
2988 dev->firmware++;
2989 ret = coda_firmware_request(dev);
2990 if (ret < 0) {
2991 v4l2_err(&dev->v4l2_dev, "firmware request failed\n");
2992 goto put_pm;
2993 }
2994 return;
2995 }
2996 if (dev->firmware > 0) {
2997 /*
2998 * Since we can't suppress warnings for failed asynchronous
2999 * firmware requests, report that the fallback firmware was
3000 * found.
3001 */
3002 dev_info(dev->dev, "Using fallback firmware %s\n",
3003 dev->devtype->firmware[dev->firmware]);
3004 }
3005
3006 /* allocate auxiliary per-device code buffer for the BIT processor */
3007 ret = coda_alloc_aux_buf(dev, &dev->codebuf, fw->size, "codebuf",
3008 dev->debugfs_root);
3009 if (ret < 0)
3010 goto put_pm;
3011
3012 coda_copy_firmware(dev, fw->data, fw->size);
3013 release_firmware(fw);
3014
3015 ret = coda_hw_init(dev);
3016 if (ret < 0) {
3017 v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
3018 goto put_pm;
3019 }
3020
3021 ret = coda_check_firmware(dev);
3022 if (ret < 0)
3023 goto put_pm;
3024
3025 dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops);
3026 if (IS_ERR(dev->m2m_dev)) {
3027 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
3028 goto put_pm;
3029 }
3030
3031 for (i = 0; i < dev->devtype->num_vdevs; i++) {
3032 ret = coda_register_device(dev, i);
3033 if (ret) {
3034 v4l2_err(&dev->v4l2_dev,
3035 "Failed to register %s video device: %d\n",
3036 dev->devtype->vdevs[i]->name, ret);
3037 goto rel_vfd;
3038 }
3039 }
3040
3041 pm_runtime_put_sync(dev->dev);
3042 return;
3043
3044 rel_vfd:
3045 while (--i >= 0)
3046 video_unregister_device(&dev->vfd[i]);
3047 v4l2_m2m_release(dev->m2m_dev);
3048 put_pm:
3049 pm_runtime_put_sync(dev->dev);
3050 }
3051
3052 enum coda_platform {
3053 CODA_IMX27,
3054 CODA_IMX51,
3055 CODA_IMX53,
3056 CODA_IMX6Q,
3057 CODA_IMX6DL,
3058 };
3059
3060 static const struct coda_devtype coda_devdata[] = {
3061 [CODA_IMX27] = {
3062 .firmware = {
3063 "vpu_fw_imx27_TO2.bin",
3064 "vpu/vpu_fw_imx27_TO2.bin",
3065 "v4l-codadx6-imx27.bin"
3066 },
3067 .product = CODA_DX6,
3068 .codecs = codadx6_codecs,
3069 .num_codecs = ARRAY_SIZE(codadx6_codecs),
3070 .vdevs = codadx6_video_devices,
3071 .num_vdevs = ARRAY_SIZE(codadx6_video_devices),
3072 .workbuf_size = 288 * 1024 + FMO_SLICE_SAVE_BUF_SIZE * 8 * 1024,
3073 .iram_size = 0xb000,
3074 },
3075 [CODA_IMX51] = {
3076 .firmware = {
3077 "vpu_fw_imx51.bin",
3078 "vpu/vpu_fw_imx51.bin",
3079 "v4l-codahx4-imx51.bin"
3080 },
3081 .product = CODA_HX4,
3082 .codecs = codahx4_codecs,
3083 .num_codecs = ARRAY_SIZE(codahx4_codecs),
3084 .vdevs = codahx4_video_devices,
3085 .num_vdevs = ARRAY_SIZE(codahx4_video_devices),
3086 .workbuf_size = 128 * 1024,
3087 .tempbuf_size = 304 * 1024,
3088 .iram_size = 0x14000,
3089 },
3090 [CODA_IMX53] = {
3091 .firmware = {
3092 "vpu_fw_imx53.bin",
3093 "vpu/vpu_fw_imx53.bin",
3094 "v4l-coda7541-imx53.bin"
3095 },
3096 .product = CODA_7541,
3097 .codecs = coda7_codecs,
3098 .num_codecs = ARRAY_SIZE(coda7_codecs),
3099 .vdevs = coda7_video_devices,
3100 .num_vdevs = ARRAY_SIZE(coda7_video_devices),
3101 .workbuf_size = 128 * 1024,
3102 .tempbuf_size = 304 * 1024,
3103 .iram_size = 0x14000,
3104 },
3105 [CODA_IMX6Q] = {
3106 .firmware = {
3107 "vpu_fw_imx6q.bin",
3108 "vpu/vpu_fw_imx6q.bin",
3109 "v4l-coda960-imx6q.bin"
3110 },
3111 .product = CODA_960,
3112 .codecs = coda9_codecs,
3113 .num_codecs = ARRAY_SIZE(coda9_codecs),
3114 .vdevs = coda9_video_devices,
3115 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
3116 .workbuf_size = 80 * 1024,
3117 .tempbuf_size = 204 * 1024,
3118 .iram_size = 0x21000,
3119 },
3120 [CODA_IMX6DL] = {
3121 .firmware = {
3122 "vpu_fw_imx6d.bin",
3123 "vpu/vpu_fw_imx6d.bin",
3124 "v4l-coda960-imx6dl.bin"
3125 },
3126 .product = CODA_960,
3127 .codecs = coda9_codecs,
3128 .num_codecs = ARRAY_SIZE(coda9_codecs),
3129 .vdevs = coda9_video_devices,
3130 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
3131 .workbuf_size = 80 * 1024,
3132 .tempbuf_size = 204 * 1024,
3133 .iram_size = 0x1f000, /* leave 4k for suspend code */
3134 },
3135 };
3136
3137 static const struct of_device_id coda_dt_ids[] = {
3138 { .compatible = "fsl,imx27-vpu", .data = &coda_devdata[CODA_IMX27] },
3139 { .compatible = "fsl,imx51-vpu", .data = &coda_devdata[CODA_IMX51] },
3140 { .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] },
3141 { .compatible = "fsl,imx6q-vpu", .data = &coda_devdata[CODA_IMX6Q] },
3142 { .compatible = "fsl,imx6dl-vpu", .data = &coda_devdata[CODA_IMX6DL] },
3143 { /* sentinel */ }
3144 };
3145 MODULE_DEVICE_TABLE(of, coda_dt_ids);
3146
coda_probe(struct platform_device * pdev)3147 static int coda_probe(struct platform_device *pdev)
3148 {
3149 struct device_node *np = pdev->dev.of_node;
3150 struct gen_pool *pool;
3151 struct coda_dev *dev;
3152 int ret, irq;
3153
3154 dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
3155 if (!dev)
3156 return -ENOMEM;
3157
3158 dev->devtype = of_device_get_match_data(&pdev->dev);
3159
3160 dev->dev = &pdev->dev;
3161 dev->clk_per = devm_clk_get(&pdev->dev, "per");
3162 if (IS_ERR(dev->clk_per)) {
3163 dev_err(&pdev->dev, "Could not get per clock\n");
3164 return PTR_ERR(dev->clk_per);
3165 }
3166
3167 dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
3168 if (IS_ERR(dev->clk_ahb)) {
3169 dev_err(&pdev->dev, "Could not get ahb clock\n");
3170 return PTR_ERR(dev->clk_ahb);
3171 }
3172
3173 /* Get memory for physical registers */
3174 dev->regs_base = devm_platform_ioremap_resource(pdev, 0);
3175 if (IS_ERR(dev->regs_base))
3176 return PTR_ERR(dev->regs_base);
3177
3178 /* IRQ */
3179 irq = platform_get_irq_byname(pdev, "bit");
3180 if (irq < 0)
3181 irq = platform_get_irq(pdev, 0);
3182 if (irq < 0)
3183 return irq;
3184
3185 ret = devm_request_irq(&pdev->dev, irq, coda_irq_handler, 0,
3186 CODA_NAME "-video", dev);
3187 if (ret < 0) {
3188 dev_err(&pdev->dev, "failed to request irq: %d\n", ret);
3189 return ret;
3190 }
3191
3192 /* JPEG IRQ */
3193 if (dev->devtype->product == CODA_960) {
3194 irq = platform_get_irq_byname(pdev, "jpeg");
3195 if (irq < 0)
3196 return irq;
3197
3198 ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
3199 coda9_jpeg_irq_handler,
3200 IRQF_ONESHOT, CODA_NAME "-jpeg",
3201 dev);
3202 if (ret < 0) {
3203 dev_err(&pdev->dev, "failed to request jpeg irq\n");
3204 return ret;
3205 }
3206 }
3207
3208 dev->rstc = devm_reset_control_get_optional_exclusive(&pdev->dev,
3209 NULL);
3210 if (IS_ERR(dev->rstc)) {
3211 ret = PTR_ERR(dev->rstc);
3212 dev_err(&pdev->dev, "failed get reset control: %d\n", ret);
3213 return ret;
3214 }
3215
3216 /* Get IRAM pool from device tree */
3217 pool = of_gen_pool_get(np, "iram", 0);
3218 if (!pool) {
3219 dev_err(&pdev->dev, "iram pool not available\n");
3220 return -ENOMEM;
3221 }
3222 dev->iram_pool = pool;
3223
3224 /* Get vdoa_data if supported by the platform */
3225 dev->vdoa = coda_get_vdoa_data();
3226 if (PTR_ERR(dev->vdoa) == -EPROBE_DEFER)
3227 return -EPROBE_DEFER;
3228
3229 ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
3230 if (ret)
3231 return ret;
3232
3233 ratelimit_default_init(&dev->mb_err_rs);
3234 mutex_init(&dev->dev_mutex);
3235 mutex_init(&dev->coda_mutex);
3236 ida_init(&dev->ida);
3237
3238 dev->debugfs_root = debugfs_create_dir("coda", NULL);
3239
3240 /* allocate auxiliary per-device buffers for the BIT processor */
3241 if (dev->devtype->product == CODA_DX6) {
3242 ret = coda_alloc_aux_buf(dev, &dev->workbuf,
3243 dev->devtype->workbuf_size, "workbuf",
3244 dev->debugfs_root);
3245 if (ret < 0)
3246 goto err_v4l2_register;
3247 }
3248
3249 if (dev->devtype->tempbuf_size) {
3250 ret = coda_alloc_aux_buf(dev, &dev->tempbuf,
3251 dev->devtype->tempbuf_size, "tempbuf",
3252 dev->debugfs_root);
3253 if (ret < 0)
3254 goto err_v4l2_register;
3255 }
3256
3257 dev->iram.size = dev->devtype->iram_size;
3258 dev->iram.vaddr = gen_pool_dma_alloc(dev->iram_pool, dev->iram.size,
3259 &dev->iram.paddr);
3260 if (!dev->iram.vaddr) {
3261 dev_warn(&pdev->dev, "unable to alloc iram\n");
3262 } else {
3263 memset(dev->iram.vaddr, 0, dev->iram.size);
3264 dev->iram.blob.data = dev->iram.vaddr;
3265 dev->iram.blob.size = dev->iram.size;
3266 dev->iram.dentry = debugfs_create_blob("iram", 0444,
3267 dev->debugfs_root,
3268 &dev->iram.blob);
3269 }
3270
3271 dev->workqueue = alloc_ordered_workqueue("coda", WQ_MEM_RECLAIM);
3272 if (!dev->workqueue) {
3273 dev_err(&pdev->dev, "unable to alloc workqueue\n");
3274 ret = -ENOMEM;
3275 goto err_v4l2_register;
3276 }
3277
3278 platform_set_drvdata(pdev, dev);
3279
3280 /*
3281 * Start activated so we can directly call coda_hw_init in
3282 * coda_fw_callback regardless of whether CONFIG_PM is
3283 * enabled or whether the device is associated with a PM domain.
3284 */
3285 pm_runtime_get_noresume(&pdev->dev);
3286 pm_runtime_set_active(&pdev->dev);
3287 pm_runtime_enable(&pdev->dev);
3288
3289 ret = coda_firmware_request(dev);
3290 if (ret)
3291 goto err_alloc_workqueue;
3292 return 0;
3293
3294 err_alloc_workqueue:
3295 pm_runtime_disable(&pdev->dev);
3296 pm_runtime_put_noidle(&pdev->dev);
3297 destroy_workqueue(dev->workqueue);
3298 err_v4l2_register:
3299 v4l2_device_unregister(&dev->v4l2_dev);
3300 return ret;
3301 }
3302
coda_remove(struct platform_device * pdev)3303 static void coda_remove(struct platform_device *pdev)
3304 {
3305 struct coda_dev *dev = platform_get_drvdata(pdev);
3306 int i;
3307
3308 for (i = 0; i < ARRAY_SIZE(dev->vfd); i++) {
3309 if (video_get_drvdata(&dev->vfd[i]))
3310 video_unregister_device(&dev->vfd[i]);
3311 }
3312 if (dev->m2m_dev)
3313 v4l2_m2m_release(dev->m2m_dev);
3314 pm_runtime_disable(&pdev->dev);
3315 v4l2_device_unregister(&dev->v4l2_dev);
3316 destroy_workqueue(dev->workqueue);
3317 if (dev->iram.vaddr)
3318 gen_pool_free(dev->iram_pool, (unsigned long)dev->iram.vaddr,
3319 dev->iram.size);
3320 coda_free_aux_buf(dev, &dev->codebuf);
3321 coda_free_aux_buf(dev, &dev->tempbuf);
3322 coda_free_aux_buf(dev, &dev->workbuf);
3323 debugfs_remove_recursive(dev->debugfs_root);
3324 ida_destroy(&dev->ida);
3325 }
3326
3327 #ifdef CONFIG_PM
coda_runtime_resume(struct device * dev)3328 static int coda_runtime_resume(struct device *dev)
3329 {
3330 struct coda_dev *cdev = dev_get_drvdata(dev);
3331 int ret = 0;
3332
3333 if (dev->pm_domain && cdev->codebuf.vaddr) {
3334 ret = coda_hw_init(cdev);
3335 if (ret)
3336 v4l2_err(&cdev->v4l2_dev, "HW initialization failed\n");
3337 }
3338
3339 return ret;
3340 }
3341 #endif
3342
3343 static const struct dev_pm_ops coda_pm_ops = {
3344 SET_RUNTIME_PM_OPS(NULL, coda_runtime_resume, NULL)
3345 };
3346
3347 static struct platform_driver coda_driver = {
3348 .probe = coda_probe,
3349 .remove_new = coda_remove,
3350 .driver = {
3351 .name = CODA_NAME,
3352 .of_match_table = coda_dt_ids,
3353 .pm = &coda_pm_ops,
3354 },
3355 };
3356
3357 module_platform_driver(coda_driver);
3358
3359 MODULE_LICENSE("GPL");
3360 MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
3361 MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver");
3362