?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
mfd: wm8350-i2c: Make sure the i2c regmap functions are compiled
[linux/fpc-iii.git] / drivers / media / platform / coda.c
blob449d2fec9e87454aa85f34a0642aa61919d376a5
1 /*
2 * Coda multi-standard codec IP
3 *
4 * Copyright (C) 2012 Vista Silicon S.L.
5 * Javier Martin, <javier.martin@vista-silicon.com>
6 * Xavier Duret
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14 #include <linux/clk.h>
15 #include <linux/delay.h>
16 #include <linux/firmware.h>
17 #include <linux/genalloc.h>
18 #include <linux/interrupt.h>
19 #include <linux/io.h>
20 #include <linux/irq.h>
21 #include <linux/kfifo.h>
22 #include <linux/module.h>
23 #include <linux/of_device.h>
24 #include <linux/platform_device.h>
25 #include <linux/slab.h>
26 #include <linux/videodev2.h>
27 #include <linux/of.h>
28 #include <linux/platform_data/coda.h>
29
30 #include <media/v4l2-ctrls.h>
31 #include <media/v4l2-device.h>
32 #include <media/v4l2-event.h>
33 #include <media/v4l2-ioctl.h>
34 #include <media/v4l2-mem2mem.h>
35 #include <media/videobuf2-core.h>
36 #include <media/videobuf2-dma-contig.h>
37
38 #include "coda.h"
39
40 #define CODA_NAME "coda"
41
42 #define CODA_MAX_INSTANCES 4
43
44 #define CODA_FMO_BUF_SIZE 32
45 #define CODADX6_WORK_BUF_SIZE (288 * 1024 + CODA_FMO_BUF_SIZE * 8 * 1024)
46 #define CODA7_WORK_BUF_SIZE (128 * 1024)
47 #define CODA7_TEMP_BUF_SIZE (304 * 1024)
48 #define CODA_PARA_BUF_SIZE (10 * 1024)
49 #define CODA_ISRAM_SIZE (2048 * 2)
50 #define CODADX6_IRAM_SIZE 0xb000
51 #define CODA7_IRAM_SIZE 0x14000
52
53 #define CODA7_PS_BUF_SIZE 0x28000
54
55 #define CODA_MAX_FRAMEBUFFERS 8
56
57 #define MAX_W 8192
58 #define MAX_H 8192
59 #define CODA_MAX_FRAME_SIZE 0x100000
60 #define FMO_SLICE_SAVE_BUF_SIZE (32)
61 #define CODA_DEFAULT_GAMMA 4096
62
63 #define MIN_W 176
64 #define MIN_H 144
65
66 #define S_ALIGN 1 /* multiple of 2 */
67 #define W_ALIGN 1 /* multiple of 2 */
68 #define H_ALIGN 1 /* multiple of 2 */
69
70 #define fh_to_ctx(__fh) container_of(__fh, struct coda_ctx, fh)
71
72 static int coda_debug;
73 module_param(coda_debug, int, 0644);
74 MODULE_PARM_DESC(coda_debug, "Debug level (0-1)");
75
76 enum {
77 V4L2_M2M_SRC = 0,
78 V4L2_M2M_DST = 1,
79 };
80
81 enum coda_inst_type {
82 CODA_INST_ENCODER,
83 CODA_INST_DECODER,
84 };
85
86 enum coda_product {
87 CODA_DX6 = 0xf001,
88 CODA_7541 = 0xf012,
89 };
90
91 struct coda_fmt {
92 char *name;
93 u32 fourcc;
94 };
95
96 struct coda_codec {
97 u32 mode;
98 u32 src_fourcc;
99 u32 dst_fourcc;
100 u32 max_w;
101 u32 max_h;
102 };
103
104 struct coda_devtype {
105 char *firmware;
106 enum coda_product product;
107 struct coda_codec *codecs;
108 unsigned int num_codecs;
109 size_t workbuf_size;
110 };
111
112 /* Per-queue, driver-specific private data */
113 struct coda_q_data {
114 unsigned int width;
115 unsigned int height;
116 unsigned int sizeimage;
117 unsigned int fourcc;
118 };
119
120 struct coda_aux_buf {
121 void *vaddr;
122 dma_addr_t paddr;
123 u32 size;
124 };
125
126 struct coda_dev {
127 struct v4l2_device v4l2_dev;
128 struct video_device vfd;
129 struct platform_device *plat_dev;
130 const struct coda_devtype *devtype;
131
132 void __iomem *regs_base;
133 struct clk *clk_per;
134 struct clk *clk_ahb;
135
136 struct coda_aux_buf codebuf;
137 struct coda_aux_buf tempbuf;
138 struct coda_aux_buf workbuf;
139 struct gen_pool *iram_pool;
140 long unsigned int iram_vaddr;
141 long unsigned int iram_paddr;
142 unsigned long iram_size;
143
144 spinlock_t irqlock;
145 struct mutex dev_mutex;
146 struct mutex coda_mutex;
147 struct v4l2_m2m_dev *m2m_dev;
148 struct vb2_alloc_ctx *alloc_ctx;
149 struct list_head instances;
150 unsigned long instance_mask;
151 struct delayed_work timeout;
152 };
153
154 struct coda_params {
155 u8 rot_mode;
156 u8 h264_intra_qp;
157 u8 h264_inter_qp;
158 u8 mpeg4_intra_qp;
159 u8 mpeg4_inter_qp;
160 u8 gop_size;
161 int codec_mode;
162 int codec_mode_aux;
163 enum v4l2_mpeg_video_multi_slice_mode slice_mode;
164 u32 framerate;
165 u16 bitrate;
166 u32 slice_max_bits;
167 u32 slice_max_mb;
168 };
169
170 struct coda_iram_info {
171 u32 axi_sram_use;
172 phys_addr_t buf_bit_use;
173 phys_addr_t buf_ip_ac_dc_use;
174 phys_addr_t buf_dbk_y_use;
175 phys_addr_t buf_dbk_c_use;
176 phys_addr_t buf_ovl_use;
177 phys_addr_t buf_btp_use;
178 phys_addr_t search_ram_paddr;
179 int search_ram_size;
180 };
181
182 struct coda_ctx {
183 struct coda_dev *dev;
184 struct mutex buffer_mutex;
185 struct list_head list;
186 struct work_struct skip_run;
187 int aborting;
188 int initialized;
189 int streamon_out;
190 int streamon_cap;
191 u32 isequence;
192 u32 qsequence;
193 u32 osequence;
194 struct coda_q_data q_data[2];
195 enum coda_inst_type inst_type;
196 struct coda_codec *codec;
197 enum v4l2_colorspace colorspace;
198 struct coda_params params;
199 struct v4l2_m2m_ctx *m2m_ctx;
200 struct v4l2_ctrl_handler ctrls;
201 struct v4l2_fh fh;
202 int gopcounter;
203 int runcounter;
204 char vpu_header[3][64];
205 int vpu_header_size[3];
206 struct kfifo bitstream_fifo;
207 struct mutex bitstream_mutex;
208 struct coda_aux_buf bitstream;
209 bool prescan_failed;
210 struct coda_aux_buf parabuf;
211 struct coda_aux_buf psbuf;
212 struct coda_aux_buf slicebuf;
213 struct coda_aux_buf internal_frames[CODA_MAX_FRAMEBUFFERS];
214 struct coda_aux_buf workbuf;
215 int num_internal_frames;
216 int idx;
217 int reg_idx;
218 struct coda_iram_info iram_info;
219 u32 bit_stream_param;
220 u32 frm_dis_flg;
221 int display_idx;
222 };
223
224 static const u8 coda_filler_nal[14] = { 0x00, 0x00, 0x00, 0x01, 0x0c, 0xff,
225 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x80 };
226 static const u8 coda_filler_size[8] = { 0, 7, 14, 13, 12, 11, 10, 9 };
227
228 static inline void coda_write(struct coda_dev *dev, u32 data, u32 reg)
229 {
230 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
231 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
232 writel(data, dev->regs_base + reg);
233 }
234
235 static inline unsigned int coda_read(struct coda_dev *dev, u32 reg)
236 {
237 u32 data;
238 data = readl(dev->regs_base + reg);
239 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
240 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
241 return data;
242 }
243
244 static inline unsigned long coda_isbusy(struct coda_dev *dev)
245 {
246 return coda_read(dev, CODA_REG_BIT_BUSY);
247 }
248
249 static inline int coda_is_initialized(struct coda_dev *dev)
250 {
251 return (coda_read(dev, CODA_REG_BIT_CUR_PC) != 0);
252 }
253
254 static int coda_wait_timeout(struct coda_dev *dev)
255 {
256 unsigned long timeout = jiffies + msecs_to_jiffies(1000);
257
258 while (coda_isbusy(dev)) {
259 if (time_after(jiffies, timeout))
260 return -ETIMEDOUT;
261 }
262 return 0;
263 }
264
265 static void coda_command_async(struct coda_ctx *ctx, int cmd)
266 {
267 struct coda_dev *dev = ctx->dev;
268
269 if (dev->devtype->product == CODA_7541) {
270 /* Restore context related registers to CODA */
271 coda_write(dev, ctx->bit_stream_param,
272 CODA_REG_BIT_BIT_STREAM_PARAM);
273 coda_write(dev, ctx->frm_dis_flg,
274 CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
275 coda_write(dev, ctx->workbuf.paddr, CODA_REG_BIT_WORK_BUF_ADDR);
276 }
277
278 coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
279
280 coda_write(dev, ctx->idx, CODA_REG_BIT_RUN_INDEX);
281 coda_write(dev, ctx->params.codec_mode, CODA_REG_BIT_RUN_COD_STD);
282 coda_write(dev, ctx->params.codec_mode_aux, CODA7_REG_BIT_RUN_AUX_STD);
283
284 coda_write(dev, cmd, CODA_REG_BIT_RUN_COMMAND);
285 }
286
287 static int coda_command_sync(struct coda_ctx *ctx, int cmd)
288 {
289 struct coda_dev *dev = ctx->dev;
290
291 coda_command_async(ctx, cmd);
292 return coda_wait_timeout(dev);
293 }
294
295 static struct coda_q_data *get_q_data(struct coda_ctx *ctx,
296 enum v4l2_buf_type type)
297 {
298 switch (type) {
299 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
300 return &(ctx->q_data[V4L2_M2M_SRC]);
301 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
302 return &(ctx->q_data[V4L2_M2M_DST]);
303 default:
304 BUG();
305 }
306 return NULL;
307 }
308
309 /*
310 * Array of all formats supported by any version of Coda:
311 */
312 static struct coda_fmt coda_formats[] = {
313 {
314 .name = "YUV 4:2:0 Planar, YCbCr",
315 .fourcc = V4L2_PIX_FMT_YUV420,
316 },
317 {
318 .name = "YUV 4:2:0 Planar, YCrCb",
319 .fourcc = V4L2_PIX_FMT_YVU420,
320 },
321 {
322 .name = "H264 Encoded Stream",
323 .fourcc = V4L2_PIX_FMT_H264,
324 },
325 {
326 .name = "MPEG4 Encoded Stream",
327 .fourcc = V4L2_PIX_FMT_MPEG4,
328 },
329 };
330
331 #define CODA_CODEC(mode, src_fourcc, dst_fourcc, max_w, max_h) \
332 { mode, src_fourcc, dst_fourcc, max_w, max_h }
333
334 /*
335 * Arrays of codecs supported by each given version of Coda:
336 * i.MX27 -> codadx6
337 * i.MX5x -> coda7
338 * i.MX6 -> coda960
339 * Use V4L2_PIX_FMT_YUV420 as placeholder for all supported YUV 4:2:0 variants
340 */
341 static struct coda_codec codadx6_codecs[] = {
342 CODA_CODEC(CODADX6_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576),
343 CODA_CODEC(CODADX6_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 720, 576),
344 };
345
346 static struct coda_codec coda7_codecs[] = {
347 CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1280, 720),
348 CODA_CODEC(CODA7_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1280, 720),
349 CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1080),
350 CODA_CODEC(CODA7_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1080),
351 };
352
353 static bool coda_format_is_yuv(u32 fourcc)
354 {
355 switch (fourcc) {
356 case V4L2_PIX_FMT_YUV420:
357 case V4L2_PIX_FMT_YVU420:
358 return true;
359 default:
360 return false;
361 }
362 }
363
364 /*
365 * Normalize all supported YUV 4:2:0 formats to the value used in the codec
366 * tables.
367 */
368 static u32 coda_format_normalize_yuv(u32 fourcc)
369 {
370 return coda_format_is_yuv(fourcc) ? V4L2_PIX_FMT_YUV420 : fourcc;
371 }
372
373 static struct coda_codec *coda_find_codec(struct coda_dev *dev, int src_fourcc,
374 int dst_fourcc)
375 {
376 struct coda_codec *codecs = dev->devtype->codecs;
377 int num_codecs = dev->devtype->num_codecs;
378 int k;
379
380 src_fourcc = coda_format_normalize_yuv(src_fourcc);
381 dst_fourcc = coda_format_normalize_yuv(dst_fourcc);
382 if (src_fourcc == dst_fourcc)
383 return NULL;
384
385 for (k = 0; k < num_codecs; k++) {
386 if (codecs[k].src_fourcc == src_fourcc &&
387 codecs[k].dst_fourcc == dst_fourcc)
388 break;
389 }
390
391 if (k == num_codecs)
392 return NULL;
393
394 return &codecs[k];
395 }
396
397 /*
398 * V4L2 ioctl() operations.
399 */
400 static int vidioc_querycap(struct file *file, void *priv,
401 struct v4l2_capability *cap)
402 {
403 strlcpy(cap->driver, CODA_NAME, sizeof(cap->driver));
404 strlcpy(cap->card, CODA_NAME, sizeof(cap->card));
405 strlcpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
406 /*
407 * This is only a mem-to-mem video device. The capture and output
408 * device capability flags are left only for backward compatibility
409 * and are scheduled for removal.
410 */
411 cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT |
412 V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
413 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
414
415 return 0;
416 }
417
418 static int enum_fmt(void *priv, struct v4l2_fmtdesc *f,
419 enum v4l2_buf_type type, int src_fourcc)
420 {
421 struct coda_ctx *ctx = fh_to_ctx(priv);
422 struct coda_codec *codecs = ctx->dev->devtype->codecs;
423 struct coda_fmt *formats = coda_formats;
424 struct coda_fmt *fmt;
425 int num_codecs = ctx->dev->devtype->num_codecs;
426 int num_formats = ARRAY_SIZE(coda_formats);
427 int i, k, num = 0;
428
429 for (i = 0; i < num_formats; i++) {
430 /* Both uncompressed formats are always supported */
431 if (coda_format_is_yuv(formats[i].fourcc) &&
432 !coda_format_is_yuv(src_fourcc)) {
433 if (num == f->index)
434 break;
435 ++num;
436 continue;
437 }
438 /* Compressed formats may be supported, check the codec list */
439 for (k = 0; k < num_codecs; k++) {
440 /* if src_fourcc is set, only consider matching codecs */
441 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
442 formats[i].fourcc == codecs[k].dst_fourcc &&
443 (!src_fourcc || src_fourcc == codecs[k].src_fourcc))
444 break;
445 if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
446 formats[i].fourcc == codecs[k].src_fourcc)
447 break;
448 }
449 if (k < num_codecs) {
450 if (num == f->index)
451 break;
452 ++num;
453 }
454 }
455
456 if (i < num_formats) {
457 fmt = &formats[i];
458 strlcpy(f->description, fmt->name, sizeof(f->description));
459 f->pixelformat = fmt->fourcc;
460 return 0;
461 }
462
463 /* Format not found */
464 return -EINVAL;
465 }
466
467 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
468 struct v4l2_fmtdesc *f)
469 {
470 struct coda_ctx *ctx = fh_to_ctx(priv);
471 struct vb2_queue *src_vq;
472 struct coda_q_data *q_data_src;
473
474 /* If the source format is already fixed, only list matching formats */
475 src_vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
476 if (vb2_is_streaming(src_vq)) {
477 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
478
479 return enum_fmt(priv, f, V4L2_BUF_TYPE_VIDEO_CAPTURE,
480 q_data_src->fourcc);
481 }
482
483 return enum_fmt(priv, f, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0);
484 }
485
486 static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
487 struct v4l2_fmtdesc *f)
488 {
489 return enum_fmt(priv, f, V4L2_BUF_TYPE_VIDEO_OUTPUT, 0);
490 }
491
492 static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
493 {
494 struct vb2_queue *vq;
495 struct coda_q_data *q_data;
496 struct coda_ctx *ctx = fh_to_ctx(priv);
497
498 vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
499 if (!vq)
500 return -EINVAL;
501
502 q_data = get_q_data(ctx, f->type);
503
504 f->fmt.pix.field = V4L2_FIELD_NONE;
505 f->fmt.pix.pixelformat = q_data->fourcc;
506 f->fmt.pix.width = q_data->width;
507 f->fmt.pix.height = q_data->height;
508 if (coda_format_is_yuv(f->fmt.pix.pixelformat))
509 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 2);
510 else /* encoded formats h.264/mpeg4 */
511 f->fmt.pix.bytesperline = 0;
512
513 f->fmt.pix.sizeimage = q_data->sizeimage;
514 f->fmt.pix.colorspace = ctx->colorspace;
515
516 return 0;
517 }
518
519 static int vidioc_try_fmt(struct coda_codec *codec, struct v4l2_format *f)
520 {
521 unsigned int max_w, max_h;
522 enum v4l2_field field;
523
524 field = f->fmt.pix.field;
525 if (field == V4L2_FIELD_ANY)
526 field = V4L2_FIELD_NONE;
527 else if (V4L2_FIELD_NONE != field)
528 return -EINVAL;
529
530 /* V4L2 specification suggests the driver corrects the format struct
531 * if any of the dimensions is unsupported */
532 f->fmt.pix.field = field;
533
534 if (codec) {
535 max_w = codec->max_w;
536 max_h = codec->max_h;
537 } else {
538 max_w = MAX_W;
539 max_h = MAX_H;
540 }
541 v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w,
542 W_ALIGN, &f->fmt.pix.height,
543 MIN_H, max_h, H_ALIGN, S_ALIGN);
544
545 if (coda_format_is_yuv(f->fmt.pix.pixelformat)) {
546 /* Frame stride must be multiple of 8 */
547 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 8);
548 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
549 f->fmt.pix.height * 3 / 2;
550 } else { /*encoded formats h.264/mpeg4 */
551 f->fmt.pix.bytesperline = 0;
552 f->fmt.pix.sizeimage = CODA_MAX_FRAME_SIZE;
553 }
554
555 return 0;
556 }
557
558 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
559 struct v4l2_format *f)
560 {
561 struct coda_ctx *ctx = fh_to_ctx(priv);
562 struct coda_codec *codec;
563 struct vb2_queue *src_vq;
564 int ret;
565
566 /*
567 * If the source format is already fixed, try to find a codec that
568 * converts to the given destination format
569 */
570 src_vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
571 if (vb2_is_streaming(src_vq)) {
572 struct coda_q_data *q_data_src;
573
574 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
575 codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
576 f->fmt.pix.pixelformat);
577 if (!codec)
578 return -EINVAL;
579 } else {
580 /* Otherwise determine codec by encoded format, if possible */
581 codec = coda_find_codec(ctx->dev, V4L2_PIX_FMT_YUV420,
582 f->fmt.pix.pixelformat);
583 }
584
585 f->fmt.pix.colorspace = ctx->colorspace;
586
587 ret = vidioc_try_fmt(codec, f);
588 if (ret < 0)
589 return ret;
590
591 /* The h.264 decoder only returns complete 16x16 macroblocks */
592 if (codec && codec->src_fourcc == V4L2_PIX_FMT_H264) {
593 f->fmt.pix.width = round_up(f->fmt.pix.width, 16);
594 f->fmt.pix.height = round_up(f->fmt.pix.height, 16);
595 f->fmt.pix.bytesperline = f->fmt.pix.width;
596 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
597 f->fmt.pix.height * 3 / 2;
598 }
599
600 return 0;
601 }
602
603 static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
604 struct v4l2_format *f)
605 {
606 struct coda_ctx *ctx = fh_to_ctx(priv);
607 struct coda_codec *codec;
608
609 /* Determine codec by encoded format, returns NULL if raw or invalid */
610 codec = coda_find_codec(ctx->dev, f->fmt.pix.pixelformat,
611 V4L2_PIX_FMT_YUV420);
612
613 if (!f->fmt.pix.colorspace)
614 f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
615
616 return vidioc_try_fmt(codec, f);
617 }
618
619 static int vidioc_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
620 {
621 struct coda_q_data *q_data;
622 struct vb2_queue *vq;
623
624 vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
625 if (!vq)
626 return -EINVAL;
627
628 q_data = get_q_data(ctx, f->type);
629 if (!q_data)
630 return -EINVAL;
631
632 if (vb2_is_busy(vq)) {
633 v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__);
634 return -EBUSY;
635 }
636
637 q_data->fourcc = f->fmt.pix.pixelformat;
638 q_data->width = f->fmt.pix.width;
639 q_data->height = f->fmt.pix.height;
640 q_data->sizeimage = f->fmt.pix.sizeimage;
641
642 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
643 "Setting format for type %d, wxh: %dx%d, fmt: %d\n",
644 f->type, q_data->width, q_data->height, q_data->fourcc);
645
646 return 0;
647 }
648
649 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
650 struct v4l2_format *f)
651 {
652 struct coda_ctx *ctx = fh_to_ctx(priv);
653 int ret;
654
655 ret = vidioc_try_fmt_vid_cap(file, priv, f);
656 if (ret)
657 return ret;
658
659 return vidioc_s_fmt(ctx, f);
660 }
661
662 static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
663 struct v4l2_format *f)
664 {
665 struct coda_ctx *ctx = fh_to_ctx(priv);
666 int ret;
667
668 ret = vidioc_try_fmt_vid_out(file, priv, f);
669 if (ret)
670 return ret;
671
672 ret = vidioc_s_fmt(ctx, f);
673 if (ret)
674 ctx->colorspace = f->fmt.pix.colorspace;
675
676 return ret;
677 }
678
679 static int vidioc_reqbufs(struct file *file, void *priv,
680 struct v4l2_requestbuffers *reqbufs)
681 {
682 struct coda_ctx *ctx = fh_to_ctx(priv);
683
684 return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
685 }
686
687 static int vidioc_querybuf(struct file *file, void *priv,
688 struct v4l2_buffer *buf)
689 {
690 struct coda_ctx *ctx = fh_to_ctx(priv);
691
692 return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
693 }
694
695 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
696 {
697 struct coda_ctx *ctx = fh_to_ctx(priv);
698
699 return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
700 }
701
702 static int vidioc_expbuf(struct file *file, void *priv,
703 struct v4l2_exportbuffer *eb)
704 {
705 struct coda_ctx *ctx = fh_to_ctx(priv);
706
707 return v4l2_m2m_expbuf(file, ctx->m2m_ctx, eb);
708 }
709
710 static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx,
711 struct v4l2_buffer *buf)
712 {
713 struct vb2_queue *src_vq;
714
715 src_vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
716
717 return ((ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) &&
718 (buf->sequence == (ctx->qsequence - 1)));
719 }
720
721 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
722 {
723 struct coda_ctx *ctx = fh_to_ctx(priv);
724 int ret;
725
726 ret = v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
727
728 /* If this is the last capture buffer, emit an end-of-stream event */
729 if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
730 coda_buf_is_end_of_stream(ctx, buf)) {
731 const struct v4l2_event eos_event = {
732 .type = V4L2_EVENT_EOS
733 };
734
735 v4l2_event_queue_fh(&ctx->fh, &eos_event);
736 }
737
738 return ret;
739 }
740
741 static int vidioc_create_bufs(struct file *file, void *priv,
742 struct v4l2_create_buffers *create)
743 {
744 struct coda_ctx *ctx = fh_to_ctx(priv);
745
746 return v4l2_m2m_create_bufs(file, ctx->m2m_ctx, create);
747 }
748
749 static int vidioc_streamon(struct file *file, void *priv,
750 enum v4l2_buf_type type)
751 {
752 struct coda_ctx *ctx = fh_to_ctx(priv);
753
754 return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
755 }
756
757 static int vidioc_streamoff(struct file *file, void *priv,
758 enum v4l2_buf_type type)
759 {
760 struct coda_ctx *ctx = fh_to_ctx(priv);
761 int ret;
762
763 /*
764 * This indirectly calls __vb2_queue_cancel, which dequeues all buffers.
765 * We therefore have to lock it against running hardware in this context,
766 * which still needs the buffers.
767 */
768 mutex_lock(&ctx->buffer_mutex);
769 ret = v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
770 mutex_unlock(&ctx->buffer_mutex);
771
772 return ret;
773 }
774
775 static int vidioc_decoder_cmd(struct file *file, void *fh,
776 struct v4l2_decoder_cmd *dc)
777 {
778 struct coda_ctx *ctx = fh_to_ctx(fh);
779
780 if (dc->cmd != V4L2_DEC_CMD_STOP)
781 return -EINVAL;
782
783 if ((dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK) ||
784 (dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY))
785 return -EINVAL;
786
787 if (dc->stop.pts != 0)
788 return -EINVAL;
789
790 if (ctx->inst_type != CODA_INST_DECODER)
791 return -EINVAL;
792
793 /* Set the strem-end flag on this context */
794 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
795
796 return 0;
797 }
798
799 static int vidioc_subscribe_event(struct v4l2_fh *fh,
800 const struct v4l2_event_subscription *sub)
801 {
802 switch (sub->type) {
803 case V4L2_EVENT_EOS:
804 return v4l2_event_subscribe(fh, sub, 0, NULL);
805 default:
806 return v4l2_ctrl_subscribe_event(fh, sub);
807 }
808 }
809
810 static const struct v4l2_ioctl_ops coda_ioctl_ops = {
811 .vidioc_querycap = vidioc_querycap,
812
813 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
814 .vidioc_g_fmt_vid_cap = vidioc_g_fmt,
815 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
816 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
817
818 .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
819 .vidioc_g_fmt_vid_out = vidioc_g_fmt,
820 .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out,
821 .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out,
822
823 .vidioc_reqbufs = vidioc_reqbufs,
824 .vidioc_querybuf = vidioc_querybuf,
825
826 .vidioc_qbuf = vidioc_qbuf,
827 .vidioc_expbuf = vidioc_expbuf,
828 .vidioc_dqbuf = vidioc_dqbuf,
829 .vidioc_create_bufs = vidioc_create_bufs,
830
831 .vidioc_streamon = vidioc_streamon,
832 .vidioc_streamoff = vidioc_streamoff,
833
834 .vidioc_decoder_cmd = vidioc_decoder_cmd,
835
836 .vidioc_subscribe_event = vidioc_subscribe_event,
837 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
838 };
839
840 static int coda_start_decoding(struct coda_ctx *ctx);
841
842 static void coda_skip_run(struct work_struct *work)
843 {
844 struct coda_ctx *ctx = container_of(work, struct coda_ctx, skip_run);
845
846 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->m2m_ctx);
847 }
848
849 static inline int coda_get_bitstream_payload(struct coda_ctx *ctx)
850 {
851 return kfifo_len(&ctx->bitstream_fifo);
852 }
853
854 static void coda_kfifo_sync_from_device(struct coda_ctx *ctx)
855 {
856 struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
857 struct coda_dev *dev = ctx->dev;
858 u32 rd_ptr;
859
860 rd_ptr = coda_read(dev, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
861 kfifo->out = (kfifo->in & ~kfifo->mask) |
862 (rd_ptr - ctx->bitstream.paddr);
863 if (kfifo->out > kfifo->in)
864 kfifo->out -= kfifo->mask + 1;
865 }
866
867 static void coda_kfifo_sync_to_device_full(struct coda_ctx *ctx)
868 {
869 struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
870 struct coda_dev *dev = ctx->dev;
871 u32 rd_ptr, wr_ptr;
872
873 rd_ptr = ctx->bitstream.paddr + (kfifo->out & kfifo->mask);
874 coda_write(dev, rd_ptr, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
875 wr_ptr = ctx->bitstream.paddr + (kfifo->in & kfifo->mask);
876 coda_write(dev, wr_ptr, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
877 }
878
879 static void coda_kfifo_sync_to_device_write(struct coda_ctx *ctx)
880 {
881 struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
882 struct coda_dev *dev = ctx->dev;
883 u32 wr_ptr;
884
885 wr_ptr = ctx->bitstream.paddr + (kfifo->in & kfifo->mask);
886 coda_write(dev, wr_ptr, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
887 }
888
889 static int coda_bitstream_queue(struct coda_ctx *ctx, struct vb2_buffer *src_buf)
890 {
891 u32 src_size = vb2_get_plane_payload(src_buf, 0);
892 u32 n;
893
894 n = kfifo_in(&ctx->bitstream_fifo, vb2_plane_vaddr(src_buf, 0), src_size);
895 if (n < src_size)
896 return -ENOSPC;
897
898 dma_sync_single_for_device(&ctx->dev->plat_dev->dev, ctx->bitstream.paddr,
899 ctx->bitstream.size, DMA_TO_DEVICE);
900
901 ctx->qsequence++;
902
903 return 0;
904 }
905
906 static bool coda_bitstream_try_queue(struct coda_ctx *ctx,
907 struct vb2_buffer *src_buf)
908 {
909 int ret;
910
911 if (coda_get_bitstream_payload(ctx) +
912 vb2_get_plane_payload(src_buf, 0) + 512 >= ctx->bitstream.size)
913 return false;
914
915 if (vb2_plane_vaddr(src_buf, 0) == NULL) {
916 v4l2_err(&ctx->dev->v4l2_dev, "trying to queue empty buffer\n");
917 return true;
918 }
919
920 ret = coda_bitstream_queue(ctx, src_buf);
921 if (ret < 0) {
922 v4l2_err(&ctx->dev->v4l2_dev, "bitstream buffer overflow\n");
923 return false;
924 }
925 /* Sync read pointer to device */
926 if (ctx == v4l2_m2m_get_curr_priv(ctx->dev->m2m_dev))
927 coda_kfifo_sync_to_device_write(ctx);
928
929 ctx->prescan_failed = false;
930
931 return true;
932 }
933
934 static void coda_fill_bitstream(struct coda_ctx *ctx)
935 {
936 struct vb2_buffer *src_buf;
937
938 while (v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) > 0) {
939 src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
940
941 if (coda_bitstream_try_queue(ctx, src_buf)) {
942 src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
943 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
944 } else {
945 break;
946 }
947 }
948 }
949
950 /*
951 * Mem-to-mem operations.
952 */
953 static int coda_prepare_decode(struct coda_ctx *ctx)
954 {
955 struct vb2_buffer *dst_buf;
956 struct coda_dev *dev = ctx->dev;
957 struct coda_q_data *q_data_dst;
958 u32 stridey, height;
959 u32 picture_y, picture_cb, picture_cr;
960
961 dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
962 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
963
964 if (ctx->params.rot_mode & CODA_ROT_90) {
965 stridey = q_data_dst->height;
966 height = q_data_dst->width;
967 } else {
968 stridey = q_data_dst->width;
969 height = q_data_dst->height;
970 }
971
972 /* Try to copy source buffer contents into the bitstream ringbuffer */
973 mutex_lock(&ctx->bitstream_mutex);
974 coda_fill_bitstream(ctx);
975 mutex_unlock(&ctx->bitstream_mutex);
976
977 if (coda_get_bitstream_payload(ctx) < 512 &&
978 (!(ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG))) {
979 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
980 "bitstream payload: %d, skipping\n",
981 coda_get_bitstream_payload(ctx));
982 schedule_work(&ctx->skip_run);
983 return -EAGAIN;
984 }
985
986 /* Run coda_start_decoding (again) if not yet initialized */
987 if (!ctx->initialized) {
988 int ret = coda_start_decoding(ctx);
989 if (ret < 0) {
990 v4l2_err(&dev->v4l2_dev, "failed to start decoding\n");
991 schedule_work(&ctx->skip_run);
992 return -EAGAIN;
993 } else {
994 ctx->initialized = 1;
995 }
996 }
997
998 /* Set rotator output */
999 picture_y = vb2_dma_contig_plane_dma_addr(dst_buf, 0);
1000 if (q_data_dst->fourcc == V4L2_PIX_FMT_YVU420) {
1001 /* Switch Cr and Cb for YVU420 format */
1002 picture_cr = picture_y + stridey * height;
1003 picture_cb = picture_cr + stridey / 2 * height / 2;
1004 } else {
1005 picture_cb = picture_y + stridey * height;
1006 picture_cr = picture_cb + stridey / 2 * height / 2;
1007 }
1008 coda_write(dev, picture_y, CODA_CMD_DEC_PIC_ROT_ADDR_Y);
1009 coda_write(dev, picture_cb, CODA_CMD_DEC_PIC_ROT_ADDR_CB);
1010 coda_write(dev, picture_cr, CODA_CMD_DEC_PIC_ROT_ADDR_CR);
1011 coda_write(dev, stridey, CODA_CMD_DEC_PIC_ROT_STRIDE);
1012 coda_write(dev, CODA_ROT_MIR_ENABLE | ctx->params.rot_mode,
1013 CODA_CMD_DEC_PIC_ROT_MODE);
1014
1015 switch (dev->devtype->product) {
1016 case CODA_DX6:
1017 /* TBD */
1018 case CODA_7541:
1019 coda_write(dev, CODA_PRE_SCAN_EN, CODA_CMD_DEC_PIC_OPTION);
1020 break;
1021 }
1022
1023 coda_write(dev, 0, CODA_CMD_DEC_PIC_SKIP_NUM);
1024
1025 coda_write(dev, 0, CODA_CMD_DEC_PIC_BB_START);
1026 coda_write(dev, 0, CODA_CMD_DEC_PIC_START_BYTE);
1027
1028 return 0;
1029 }
1030
1031 static void coda_prepare_encode(struct coda_ctx *ctx)
1032 {
1033 struct coda_q_data *q_data_src, *q_data_dst;
1034 struct vb2_buffer *src_buf, *dst_buf;
1035 struct coda_dev *dev = ctx->dev;
1036 int force_ipicture;
1037 int quant_param = 0;
1038 u32 picture_y, picture_cb, picture_cr;
1039 u32 pic_stream_buffer_addr, pic_stream_buffer_size;
1040 u32 dst_fourcc;
1041
1042 src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
1043 dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
1044 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1045 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1046 dst_fourcc = q_data_dst->fourcc;
1047
1048 src_buf->v4l2_buf.sequence = ctx->osequence;
1049 dst_buf->v4l2_buf.sequence = ctx->osequence;
1050 ctx->osequence++;
1051
1052 /*
1053 * Workaround coda firmware BUG that only marks the first
1054 * frame as IDR. This is a problem for some decoders that can't
1055 * recover when a frame is lost.
1056 */
1057 if (src_buf->v4l2_buf.sequence % ctx->params.gop_size) {
1058 src_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME;
1059 src_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME;
1060 } else {
1061 src_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
1062 src_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME;
1063 }
1064
1065 /*
1066 * Copy headers at the beginning of the first frame for H.264 only.
1067 * In MPEG4 they are already copied by the coda.
1068 */
1069 if (src_buf->v4l2_buf.sequence == 0) {
1070 pic_stream_buffer_addr =
1071 vb2_dma_contig_plane_dma_addr(dst_buf, 0) +
1072 ctx->vpu_header_size[0] +
1073 ctx->vpu_header_size[1] +
1074 ctx->vpu_header_size[2];
1075 pic_stream_buffer_size = CODA_MAX_FRAME_SIZE -
1076 ctx->vpu_header_size[0] -
1077 ctx->vpu_header_size[1] -
1078 ctx->vpu_header_size[2];
1079 memcpy(vb2_plane_vaddr(dst_buf, 0),
1080 &ctx->vpu_header[0][0], ctx->vpu_header_size[0]);
1081 memcpy(vb2_plane_vaddr(dst_buf, 0) + ctx->vpu_header_size[0],
1082 &ctx->vpu_header[1][0], ctx->vpu_header_size[1]);
1083 memcpy(vb2_plane_vaddr(dst_buf, 0) + ctx->vpu_header_size[0] +
1084 ctx->vpu_header_size[1], &ctx->vpu_header[2][0],
1085 ctx->vpu_header_size[2]);
1086 } else {
1087 pic_stream_buffer_addr =
1088 vb2_dma_contig_plane_dma_addr(dst_buf, 0);
1089 pic_stream_buffer_size = CODA_MAX_FRAME_SIZE;
1090 }
1091
1092 if (src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) {
1093 force_ipicture = 1;
1094 switch (dst_fourcc) {
1095 case V4L2_PIX_FMT_H264:
1096 quant_param = ctx->params.h264_intra_qp;
1097 break;
1098 case V4L2_PIX_FMT_MPEG4:
1099 quant_param = ctx->params.mpeg4_intra_qp;
1100 break;
1101 default:
1102 v4l2_warn(&ctx->dev->v4l2_dev,
1103 "cannot set intra qp, fmt not supported\n");
1104 break;
1105 }
1106 } else {
1107 force_ipicture = 0;
1108 switch (dst_fourcc) {
1109 case V4L2_PIX_FMT_H264:
1110 quant_param = ctx->params.h264_inter_qp;
1111 break;
1112 case V4L2_PIX_FMT_MPEG4:
1113 quant_param = ctx->params.mpeg4_inter_qp;
1114 break;
1115 default:
1116 v4l2_warn(&ctx->dev->v4l2_dev,
1117 "cannot set inter qp, fmt not supported\n");
1118 break;
1119 }
1120 }
1121
1122 /* submit */
1123 coda_write(dev, CODA_ROT_MIR_ENABLE | ctx->params.rot_mode, CODA_CMD_ENC_PIC_ROT_MODE);
1124 coda_write(dev, quant_param, CODA_CMD_ENC_PIC_QS);
1125
1126
1127 picture_y = vb2_dma_contig_plane_dma_addr(src_buf, 0);
1128 switch (q_data_src->fourcc) {
1129 case V4L2_PIX_FMT_YVU420:
1130 /* Switch Cb and Cr for YVU420 format */
1131 picture_cr = picture_y + q_data_src->width * q_data_src->height;
1132 picture_cb = picture_cr + q_data_src->width / 2 *
1133 q_data_src->height / 2;
1134 break;
1135 case V4L2_PIX_FMT_YUV420:
1136 default:
1137 picture_cb = picture_y + q_data_src->width * q_data_src->height;
1138 picture_cr = picture_cb + q_data_src->width / 2 *
1139 q_data_src->height / 2;
1140 break;
1141 }
1142
1143 coda_write(dev, picture_y, CODA_CMD_ENC_PIC_SRC_ADDR_Y);
1144 coda_write(dev, picture_cb, CODA_CMD_ENC_PIC_SRC_ADDR_CB);
1145 coda_write(dev, picture_cr, CODA_CMD_ENC_PIC_SRC_ADDR_CR);
1146 coda_write(dev, force_ipicture << 1 & 0x2,
1147 CODA_CMD_ENC_PIC_OPTION);
1148
1149 coda_write(dev, pic_stream_buffer_addr, CODA_CMD_ENC_PIC_BB_START);
1150 coda_write(dev, pic_stream_buffer_size / 1024,
1151 CODA_CMD_ENC_PIC_BB_SIZE);
1152 }
1153
1154 static void coda_device_run(void *m2m_priv)
1155 {
1156 struct coda_ctx *ctx = m2m_priv;
1157 struct coda_dev *dev = ctx->dev;
1158 int ret;
1159
1160 mutex_lock(&ctx->buffer_mutex);
1161
1162 /*
1163 * If streamoff dequeued all buffers before we could get the lock,
1164 * just bail out immediately.
1165 */
1166 if ((!v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) &&
1167 ctx->inst_type != CODA_INST_DECODER) ||
1168 !v4l2_m2m_num_dst_bufs_ready(ctx->m2m_ctx)) {
1169 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1170 "%d: device_run without buffers\n", ctx->idx);
1171 mutex_unlock(&ctx->buffer_mutex);
1172 schedule_work(&ctx->skip_run);
1173 return;
1174 }
1175
1176 mutex_lock(&dev->coda_mutex);
1177
1178 if (ctx->inst_type == CODA_INST_DECODER) {
1179 ret = coda_prepare_decode(ctx);
1180 if (ret < 0) {
1181 mutex_unlock(&dev->coda_mutex);
1182 mutex_unlock(&ctx->buffer_mutex);
1183 /* job_finish scheduled by prepare_decode */
1184 return;
1185 }
1186 } else {
1187 coda_prepare_encode(ctx);
1188 }
1189
1190 if (dev->devtype->product != CODA_DX6)
1191 coda_write(dev, ctx->iram_info.axi_sram_use,
1192 CODA7_REG_BIT_AXI_SRAM_USE);
1193
1194 /* 1 second timeout in case CODA locks up */
1195 schedule_delayed_work(&dev->timeout, HZ);
1196
1197 if (ctx->inst_type == CODA_INST_DECODER)
1198 coda_kfifo_sync_to_device_full(ctx);
1199 coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
1200 }
1201
1202 static int coda_job_ready(void *m2m_priv)
1203 {
1204 struct coda_ctx *ctx = m2m_priv;
1205
1206 /*
1207 * For both 'P' and 'key' frame cases 1 picture
1208 * and 1 frame are needed. In the decoder case,
1209 * the compressed frame can be in the bitstream.
1210 */
1211 if (!v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) &&
1212 ctx->inst_type != CODA_INST_DECODER) {
1213 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1214 "not ready: not enough video buffers.\n");
1215 return 0;
1216 }
1217
1218 if (!v4l2_m2m_num_dst_bufs_ready(ctx->m2m_ctx)) {
1219 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1220 "not ready: not enough video capture buffers.\n");
1221 return 0;
1222 }
1223
1224 if (ctx->prescan_failed ||
1225 ((ctx->inst_type == CODA_INST_DECODER) &&
1226 (coda_get_bitstream_payload(ctx) < 512) &&
1227 !(ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG))) {
1228 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1229 "%d: not ready: not enough bitstream data.\n",
1230 ctx->idx);
1231 return 0;
1232 }
1233
1234 if (ctx->aborting) {
1235 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1236 "not ready: aborting\n");
1237 return 0;
1238 }
1239
1240 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1241 "job ready\n");
1242 return 1;
1243 }
1244
1245 static void coda_job_abort(void *priv)
1246 {
1247 struct coda_ctx *ctx = priv;
1248
1249 ctx->aborting = 1;
1250
1251 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1252 "Aborting task\n");
1253 }
1254
1255 static void coda_lock(void *m2m_priv)
1256 {
1257 struct coda_ctx *ctx = m2m_priv;
1258 struct coda_dev *pcdev = ctx->dev;
1259 mutex_lock(&pcdev->dev_mutex);
1260 }
1261
1262 static void coda_unlock(void *m2m_priv)
1263 {
1264 struct coda_ctx *ctx = m2m_priv;
1265 struct coda_dev *pcdev = ctx->dev;
1266 mutex_unlock(&pcdev->dev_mutex);
1267 }
1268
1269 static struct v4l2_m2m_ops coda_m2m_ops = {
1270 .device_run = coda_device_run,
1271 .job_ready = coda_job_ready,
1272 .job_abort = coda_job_abort,
1273 .lock = coda_lock,
1274 .unlock = coda_unlock,
1275 };
1276
1277 static void set_default_params(struct coda_ctx *ctx)
1278 {
1279 int max_w;
1280 int max_h;
1281
1282 ctx->codec = &ctx->dev->devtype->codecs[0];
1283 max_w = ctx->codec->max_w;
1284 max_h = ctx->codec->max_h;
1285
1286 ctx->params.codec_mode = CODA_MODE_INVALID;
1287 ctx->colorspace = V4L2_COLORSPACE_REC709;
1288 ctx->params.framerate = 30;
1289 ctx->aborting = 0;
1290
1291 /* Default formats for output and input queues */
1292 ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->codec->src_fourcc;
1293 ctx->q_data[V4L2_M2M_DST].fourcc = ctx->codec->dst_fourcc;
1294 ctx->q_data[V4L2_M2M_SRC].width = max_w;
1295 ctx->q_data[V4L2_M2M_SRC].height = max_h;
1296 ctx->q_data[V4L2_M2M_SRC].sizeimage = (max_w * max_h * 3) / 2;
1297 ctx->q_data[V4L2_M2M_DST].width = max_w;
1298 ctx->q_data[V4L2_M2M_DST].height = max_h;
1299 ctx->q_data[V4L2_M2M_DST].sizeimage = CODA_MAX_FRAME_SIZE;
1300 }
1301
1302 /*
1303 * Queue operations
1304 */
1305 static int coda_queue_setup(struct vb2_queue *vq,
1306 const struct v4l2_format *fmt,
1307 unsigned int *nbuffers, unsigned int *nplanes,
1308 unsigned int sizes[], void *alloc_ctxs[])
1309 {
1310 struct coda_ctx *ctx = vb2_get_drv_priv(vq);
1311 struct coda_q_data *q_data;
1312 unsigned int size;
1313
1314 q_data = get_q_data(ctx, vq->type);
1315 size = q_data->sizeimage;
1316
1317 *nplanes = 1;
1318 sizes[0] = size;
1319
1320 alloc_ctxs[0] = ctx->dev->alloc_ctx;
1321
1322 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1323 "get %d buffer(s) of size %d each.\n", *nbuffers, size);
1324
1325 return 0;
1326 }
1327
1328 static int coda_buf_prepare(struct vb2_buffer *vb)
1329 {
1330 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1331 struct coda_q_data *q_data;
1332
1333 q_data = get_q_data(ctx, vb->vb2_queue->type);
1334
1335 if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
1336 v4l2_warn(&ctx->dev->v4l2_dev,
1337 "%s data will not fit into plane (%lu < %lu)\n",
1338 __func__, vb2_plane_size(vb, 0),
1339 (long)q_data->sizeimage);
1340 return -EINVAL;
1341 }
1342
1343 return 0;
1344 }
1345
1346 static void coda_buf_queue(struct vb2_buffer *vb)
1347 {
1348 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1349 struct coda_q_data *q_data;
1350
1351 q_data = get_q_data(ctx, vb->vb2_queue->type);
1352
1353 /*
1354 * In the decoder case, immediately try to copy the buffer into the
1355 * bitstream ringbuffer and mark it as ready to be dequeued.
1356 */
1357 if (q_data->fourcc == V4L2_PIX_FMT_H264 &&
1358 vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1359 /*
1360 * For backwards compatiblity, queuing an empty buffer marks
1361 * the stream end
1362 */
1363 if (vb2_get_plane_payload(vb, 0) == 0)
1364 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
1365 mutex_lock(&ctx->bitstream_mutex);
1366 v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
1367 coda_fill_bitstream(ctx);
1368 mutex_unlock(&ctx->bitstream_mutex);
1369 } else {
1370 v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
1371 }
1372 }
1373
1374 static void coda_wait_prepare(struct vb2_queue *q)
1375 {
1376 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1377 coda_unlock(ctx);
1378 }
1379
1380 static void coda_wait_finish(struct vb2_queue *q)
1381 {
1382 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1383 coda_lock(ctx);
1384 }
1385
1386 static void coda_parabuf_write(struct coda_ctx *ctx, int index, u32 value)
1387 {
1388 struct coda_dev *dev = ctx->dev;
1389 u32 *p = ctx->parabuf.vaddr;
1390
1391 if (dev->devtype->product == CODA_DX6)
1392 p[index] = value;
1393 else
1394 p[index ^ 1] = value;
1395 }
1396
1397 static int coda_alloc_aux_buf(struct coda_dev *dev,
1398 struct coda_aux_buf *buf, size_t size)
1399 {
1400 buf->vaddr = dma_alloc_coherent(&dev->plat_dev->dev, size, &buf->paddr,
1401 GFP_KERNEL);
1402 if (!buf->vaddr)
1403 return -ENOMEM;
1404
1405 buf->size = size;
1406
1407 return 0;
1408 }
1409
1410 static inline int coda_alloc_context_buf(struct coda_ctx *ctx,
1411 struct coda_aux_buf *buf, size_t size)
1412 {
1413 return coda_alloc_aux_buf(ctx->dev, buf, size);
1414 }
1415
1416 static void coda_free_aux_buf(struct coda_dev *dev,
1417 struct coda_aux_buf *buf)
1418 {
1419 if (buf->vaddr) {
1420 dma_free_coherent(&dev->plat_dev->dev, buf->size,
1421 buf->vaddr, buf->paddr);
1422 buf->vaddr = NULL;
1423 buf->size = 0;
1424 }
1425 }
1426
1427 static void coda_free_framebuffers(struct coda_ctx *ctx)
1428 {
1429 int i;
1430
1431 for (i = 0; i < CODA_MAX_FRAMEBUFFERS; i++)
1432 coda_free_aux_buf(ctx->dev, &ctx->internal_frames[i]);
1433 }
1434
1435 static int coda_alloc_framebuffers(struct coda_ctx *ctx, struct coda_q_data *q_data, u32 fourcc)
1436 {
1437 struct coda_dev *dev = ctx->dev;
1438 int height = q_data->height;
1439 dma_addr_t paddr;
1440 int ysize;
1441 int ret;
1442 int i;
1443
1444 if (ctx->codec && ctx->codec->src_fourcc == V4L2_PIX_FMT_H264)
1445 height = round_up(height, 16);
1446 ysize = round_up(q_data->width, 8) * height;
1447
1448 /* Allocate frame buffers */
1449 for (i = 0; i < ctx->num_internal_frames; i++) {
1450 size_t size;
1451
1452 size = q_data->sizeimage;
1453 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 &&
1454 dev->devtype->product != CODA_DX6)
1455 ctx->internal_frames[i].size += ysize/4;
1456 ret = coda_alloc_context_buf(ctx, &ctx->internal_frames[i], size);
1457 if (ret < 0) {
1458 coda_free_framebuffers(ctx);
1459 return ret;
1460 }
1461 }
1462
1463 /* Register frame buffers in the parameter buffer */
1464 for (i = 0; i < ctx->num_internal_frames; i++) {
1465 paddr = ctx->internal_frames[i].paddr;
1466 coda_parabuf_write(ctx, i * 3 + 0, paddr); /* Y */
1467 coda_parabuf_write(ctx, i * 3 + 1, paddr + ysize); /* Cb */
1468 coda_parabuf_write(ctx, i * 3 + 2, paddr + ysize + ysize/4); /* Cr */
1469
1470 /* mvcol buffer for h.264 */
1471 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 &&
1472 dev->devtype->product != CODA_DX6)
1473 coda_parabuf_write(ctx, 96 + i,
1474 ctx->internal_frames[i].paddr +
1475 ysize + ysize/4 + ysize/4);
1476 }
1477
1478 /* mvcol buffer for mpeg4 */
1479 if ((dev->devtype->product != CODA_DX6) &&
1480 (ctx->codec->src_fourcc == V4L2_PIX_FMT_MPEG4))
1481 coda_parabuf_write(ctx, 97, ctx->internal_frames[i].paddr +
1482 ysize + ysize/4 + ysize/4);
1483
1484 return 0;
1485 }
1486
1487 static int coda_h264_padding(int size, char *p)
1488 {
1489 int nal_size;
1490 int diff;
1491
1492 diff = size - (size & ~0x7);
1493 if (diff == 0)
1494 return 0;
1495
1496 nal_size = coda_filler_size[diff];
1497 memcpy(p, coda_filler_nal, nal_size);
1498
1499 /* Add rbsp stop bit and trailing at the end */
1500 *(p + nal_size - 1) = 0x80;
1501
1502 return nal_size;
1503 }
1504
1505 static void coda_setup_iram(struct coda_ctx *ctx)
1506 {
1507 struct coda_iram_info *iram_info = &ctx->iram_info;
1508 struct coda_dev *dev = ctx->dev;
1509 int ipacdc_size;
1510 int bitram_size;
1511 int dbk_size;
1512 int ovl_size;
1513 int mb_width;
1514 int me_size;
1515 int size;
1516
1517 memset(iram_info, 0, sizeof(*iram_info));
1518 size = dev->iram_size;
1519
1520 if (dev->devtype->product == CODA_DX6)
1521 return;
1522
1523 if (ctx->inst_type == CODA_INST_ENCODER) {
1524 struct coda_q_data *q_data_src;
1525
1526 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1527 mb_width = DIV_ROUND_UP(q_data_src->width, 16);
1528
1529 /* Prioritize in case IRAM is too small for everything */
1530 me_size = round_up(round_up(q_data_src->width, 16) * 36 + 2048,
1531 1024);
1532 iram_info->search_ram_size = me_size;
1533 if (size >= iram_info->search_ram_size) {
1534 if (dev->devtype->product == CODA_7541)
1535 iram_info->axi_sram_use |= CODA7_USE_HOST_ME_ENABLE;
1536 iram_info->search_ram_paddr = dev->iram_paddr;
1537 size -= iram_info->search_ram_size;
1538 } else {
1539 pr_err("IRAM is smaller than the search ram size\n");
1540 goto out;
1541 }
1542
1543 /* Only H.264BP and H.263P3 are considered */
1544 dbk_size = round_up(128 * mb_width, 1024);
1545 if (size >= dbk_size) {
1546 iram_info->axi_sram_use |= CODA7_USE_HOST_DBK_ENABLE;
1547 iram_info->buf_dbk_y_use = dev->iram_paddr +
1548 iram_info->search_ram_size;
1549 iram_info->buf_dbk_c_use = iram_info->buf_dbk_y_use +
1550 dbk_size / 2;
1551 size -= dbk_size;
1552 } else {
1553 goto out;
1554 }
1555
1556 bitram_size = round_up(128 * mb_width, 1024);
1557 if (size >= bitram_size) {
1558 iram_info->axi_sram_use |= CODA7_USE_HOST_BIT_ENABLE;
1559 iram_info->buf_bit_use = iram_info->buf_dbk_c_use +
1560 dbk_size / 2;
1561 size -= bitram_size;
1562 } else {
1563 goto out;
1564 }
1565
1566 ipacdc_size = round_up(128 * mb_width, 1024);
1567 if (size >= ipacdc_size) {
1568 iram_info->axi_sram_use |= CODA7_USE_HOST_IP_ENABLE;
1569 iram_info->buf_ip_ac_dc_use = iram_info->buf_bit_use +
1570 bitram_size;
1571 size -= ipacdc_size;
1572 }
1573
1574 /* OVL and BTP disabled for encoder */
1575 } else if (ctx->inst_type == CODA_INST_DECODER) {
1576 struct coda_q_data *q_data_dst;
1577 int mb_height;
1578
1579 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1580 mb_width = DIV_ROUND_UP(q_data_dst->width, 16);
1581 mb_height = DIV_ROUND_UP(q_data_dst->height, 16);
1582
1583 dbk_size = round_up(256 * mb_width, 1024);
1584 if (size >= dbk_size) {
1585 iram_info->axi_sram_use |= CODA7_USE_HOST_DBK_ENABLE;
1586 iram_info->buf_dbk_y_use = dev->iram_paddr;
1587 iram_info->buf_dbk_c_use = dev->iram_paddr +
1588 dbk_size / 2;
1589 size -= dbk_size;
1590 } else {
1591 goto out;
1592 }
1593
1594 bitram_size = round_up(128 * mb_width, 1024);
1595 if (size >= bitram_size) {
1596 iram_info->axi_sram_use |= CODA7_USE_HOST_BIT_ENABLE;
1597 iram_info->buf_bit_use = iram_info->buf_dbk_c_use +
1598 dbk_size / 2;
1599 size -= bitram_size;
1600 } else {
1601 goto out;
1602 }
1603
1604 ipacdc_size = round_up(128 * mb_width, 1024);
1605 if (size >= ipacdc_size) {
1606 iram_info->axi_sram_use |= CODA7_USE_HOST_IP_ENABLE;
1607 iram_info->buf_ip_ac_dc_use = iram_info->buf_bit_use +
1608 bitram_size;
1609 size -= ipacdc_size;
1610 } else {
1611 goto out;
1612 }
1613
1614 ovl_size = round_up(80 * mb_width, 1024);
1615 }
1616
1617 out:
1618 switch (dev->devtype->product) {
1619 case CODA_DX6:
1620 break;
1621 case CODA_7541:
1622 /* i.MX53 uses secondary AXI for IRAM access */
1623 if (iram_info->axi_sram_use & CODA7_USE_HOST_BIT_ENABLE)
1624 iram_info->axi_sram_use |= CODA7_USE_BIT_ENABLE;
1625 if (iram_info->axi_sram_use & CODA7_USE_HOST_IP_ENABLE)
1626 iram_info->axi_sram_use |= CODA7_USE_IP_ENABLE;
1627 if (iram_info->axi_sram_use & CODA7_USE_HOST_DBK_ENABLE)
1628 iram_info->axi_sram_use |= CODA7_USE_DBK_ENABLE;
1629 if (iram_info->axi_sram_use & CODA7_USE_HOST_OVL_ENABLE)
1630 iram_info->axi_sram_use |= CODA7_USE_OVL_ENABLE;
1631 if (iram_info->axi_sram_use & CODA7_USE_HOST_ME_ENABLE)
1632 iram_info->axi_sram_use |= CODA7_USE_ME_ENABLE;
1633 }
1634
1635 if (!(iram_info->axi_sram_use & CODA7_USE_HOST_IP_ENABLE))
1636 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1637 "IRAM smaller than needed\n");
1638
1639 if (dev->devtype->product == CODA_7541) {
1640 /* TODO - Enabling these causes picture errors on CODA7541 */
1641 if (ctx->inst_type == CODA_INST_DECODER) {
1642 /* fw 1.4.50 */
1643 iram_info->axi_sram_use &= ~(CODA7_USE_HOST_IP_ENABLE |
1644 CODA7_USE_IP_ENABLE);
1645 } else {
1646 /* fw 13.4.29 */
1647 iram_info->axi_sram_use &= ~(CODA7_USE_HOST_IP_ENABLE |
1648 CODA7_USE_HOST_DBK_ENABLE |
1649 CODA7_USE_IP_ENABLE |
1650 CODA7_USE_DBK_ENABLE);
1651 }
1652 }
1653 }
1654
1655 static void coda_free_context_buffers(struct coda_ctx *ctx)
1656 {
1657 struct coda_dev *dev = ctx->dev;
1658
1659 coda_free_aux_buf(dev, &ctx->slicebuf);
1660 coda_free_aux_buf(dev, &ctx->psbuf);
1661 if (dev->devtype->product != CODA_DX6)
1662 coda_free_aux_buf(dev, &ctx->workbuf);
1663 }
1664
1665 static int coda_alloc_context_buffers(struct coda_ctx *ctx,
1666 struct coda_q_data *q_data)
1667 {
1668 struct coda_dev *dev = ctx->dev;
1669 size_t size;
1670 int ret;
1671
1672 switch (dev->devtype->product) {
1673 case CODA_7541:
1674 size = CODA7_WORK_BUF_SIZE;
1675 break;
1676 default:
1677 return 0;
1678 }
1679
1680 if (ctx->psbuf.vaddr) {
1681 v4l2_err(&dev->v4l2_dev, "psmembuf still allocated\n");
1682 return -EBUSY;
1683 }
1684 if (ctx->slicebuf.vaddr) {
1685 v4l2_err(&dev->v4l2_dev, "slicebuf still allocated\n");
1686 return -EBUSY;
1687 }
1688 if (ctx->workbuf.vaddr) {
1689 v4l2_err(&dev->v4l2_dev, "context buffer still allocated\n");
1690 ret = -EBUSY;
1691 return -ENOMEM;
1692 }
1693
1694 if (q_data->fourcc == V4L2_PIX_FMT_H264) {
1695 /* worst case slice size */
1696 size = (DIV_ROUND_UP(q_data->width, 16) *
1697 DIV_ROUND_UP(q_data->height, 16)) * 3200 / 8 + 512;
1698 ret = coda_alloc_context_buf(ctx, &ctx->slicebuf, size);
1699 if (ret < 0) {
1700 v4l2_err(&dev->v4l2_dev, "failed to allocate %d byte slice buffer",
1701 ctx->slicebuf.size);
1702 return ret;
1703 }
1704 }
1705
1706 if (dev->devtype->product == CODA_7541) {
1707 ret = coda_alloc_context_buf(ctx, &ctx->psbuf, CODA7_PS_BUF_SIZE);
1708 if (ret < 0) {
1709 v4l2_err(&dev->v4l2_dev, "failed to allocate psmem buffer");
1710 goto err;
1711 }
1712 }
1713
1714 ret = coda_alloc_context_buf(ctx, &ctx->workbuf, size);
1715 if (ret < 0) {
1716 v4l2_err(&dev->v4l2_dev, "failed to allocate %d byte context buffer",
1717 ctx->workbuf.size);
1718 goto err;
1719 }
1720
1721 return 0;
1722
1723 err:
1724 coda_free_context_buffers(ctx);
1725 return ret;
1726 }
1727
1728 static int coda_start_decoding(struct coda_ctx *ctx)
1729 {
1730 struct coda_q_data *q_data_src, *q_data_dst;
1731 u32 bitstream_buf, bitstream_size;
1732 struct coda_dev *dev = ctx->dev;
1733 int width, height;
1734 u32 src_fourcc;
1735 u32 val;
1736 int ret;
1737
1738 /* Start decoding */
1739 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1740 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1741 bitstream_buf = ctx->bitstream.paddr;
1742 bitstream_size = ctx->bitstream.size;
1743 src_fourcc = q_data_src->fourcc;
1744
1745 coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
1746
1747 /* Update coda bitstream read and write pointers from kfifo */
1748 coda_kfifo_sync_to_device_full(ctx);
1749
1750 ctx->display_idx = -1;
1751 ctx->frm_dis_flg = 0;
1752 coda_write(dev, 0, CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
1753
1754 coda_write(dev, CODA_BIT_DEC_SEQ_INIT_ESCAPE,
1755 CODA_REG_BIT_BIT_STREAM_PARAM);
1756
1757 coda_write(dev, bitstream_buf, CODA_CMD_DEC_SEQ_BB_START);
1758 coda_write(dev, bitstream_size / 1024, CODA_CMD_DEC_SEQ_BB_SIZE);
1759 val = 0;
1760 if (dev->devtype->product == CODA_7541)
1761 val |= CODA_REORDER_ENABLE;
1762 coda_write(dev, val, CODA_CMD_DEC_SEQ_OPTION);
1763
1764 ctx->params.codec_mode = ctx->codec->mode;
1765 ctx->params.codec_mode_aux = 0;
1766 if (src_fourcc == V4L2_PIX_FMT_H264) {
1767 if (dev->devtype->product == CODA_7541) {
1768 coda_write(dev, ctx->psbuf.paddr,
1769 CODA_CMD_DEC_SEQ_PS_BB_START);
1770 coda_write(dev, (CODA7_PS_BUF_SIZE / 1024),
1771 CODA_CMD_DEC_SEQ_PS_BB_SIZE);
1772 }
1773 }
1774
1775 if (coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT)) {
1776 v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
1777 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
1778 return -ETIMEDOUT;
1779 }
1780
1781 /* Update kfifo out pointer from coda bitstream read pointer */
1782 coda_kfifo_sync_from_device(ctx);
1783
1784 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
1785
1786 if (coda_read(dev, CODA_RET_DEC_SEQ_SUCCESS) == 0) {
1787 v4l2_err(&dev->v4l2_dev,
1788 "CODA_COMMAND_SEQ_INIT failed, error code = %d\n",
1789 coda_read(dev, CODA_RET_DEC_SEQ_ERR_REASON));
1790 return -EAGAIN;
1791 }
1792
1793 val = coda_read(dev, CODA_RET_DEC_SEQ_SRC_SIZE);
1794 if (dev->devtype->product == CODA_DX6) {
1795 width = (val >> CODADX6_PICWIDTH_OFFSET) & CODADX6_PICWIDTH_MASK;
1796 height = val & CODADX6_PICHEIGHT_MASK;
1797 } else {
1798 width = (val >> CODA7_PICWIDTH_OFFSET) & CODA7_PICWIDTH_MASK;
1799 height = val & CODA7_PICHEIGHT_MASK;
1800 }
1801
1802 if (width > q_data_dst->width || height > q_data_dst->height) {
1803 v4l2_err(&dev->v4l2_dev, "stream is %dx%d, not %dx%d\n",
1804 width, height, q_data_dst->width, q_data_dst->height);
1805 return -EINVAL;
1806 }
1807
1808 width = round_up(width, 16);
1809 height = round_up(height, 16);
1810
1811 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "%s instance %d now: %dx%d\n",
1812 __func__, ctx->idx, width, height);
1813
1814 ctx->num_internal_frames = coda_read(dev, CODA_RET_DEC_SEQ_FRAME_NEED) + 1;
1815 if (ctx->num_internal_frames > CODA_MAX_FRAMEBUFFERS) {
1816 v4l2_err(&dev->v4l2_dev,
1817 "not enough framebuffers to decode (%d < %d)\n",
1818 CODA_MAX_FRAMEBUFFERS, ctx->num_internal_frames);
1819 return -EINVAL;
1820 }
1821
1822 ret = coda_alloc_framebuffers(ctx, q_data_dst, src_fourcc);
1823 if (ret < 0)
1824 return ret;
1825
1826 /* Tell the decoder how many frame buffers we allocated. */
1827 coda_write(dev, ctx->num_internal_frames, CODA_CMD_SET_FRAME_BUF_NUM);
1828 coda_write(dev, width, CODA_CMD_SET_FRAME_BUF_STRIDE);
1829
1830 if (dev->devtype->product != CODA_DX6) {
1831 /* Set secondary AXI IRAM */
1832 coda_setup_iram(ctx);
1833
1834 coda_write(dev, ctx->iram_info.buf_bit_use,
1835 CODA7_CMD_SET_FRAME_AXI_BIT_ADDR);
1836 coda_write(dev, ctx->iram_info.buf_ip_ac_dc_use,
1837 CODA7_CMD_SET_FRAME_AXI_IPACDC_ADDR);
1838 coda_write(dev, ctx->iram_info.buf_dbk_y_use,
1839 CODA7_CMD_SET_FRAME_AXI_DBKY_ADDR);
1840 coda_write(dev, ctx->iram_info.buf_dbk_c_use,
1841 CODA7_CMD_SET_FRAME_AXI_DBKC_ADDR);
1842 coda_write(dev, ctx->iram_info.buf_ovl_use,
1843 CODA7_CMD_SET_FRAME_AXI_OVL_ADDR);
1844 }
1845
1846 if (src_fourcc == V4L2_PIX_FMT_H264) {
1847 coda_write(dev, ctx->slicebuf.paddr,
1848 CODA_CMD_SET_FRAME_SLICE_BB_START);
1849 coda_write(dev, ctx->slicebuf.size / 1024,
1850 CODA_CMD_SET_FRAME_SLICE_BB_SIZE);
1851 }
1852
1853 if (dev->devtype->product == CODA_7541) {
1854 int max_mb_x = 1920 / 16;
1855 int max_mb_y = 1088 / 16;
1856 int max_mb_num = max_mb_x * max_mb_y;
1857 coda_write(dev, max_mb_num << 16 | max_mb_x << 8 | max_mb_y,
1858 CODA7_CMD_SET_FRAME_MAX_DEC_SIZE);
1859 }
1860
1861 if (coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF)) {
1862 v4l2_err(&ctx->dev->v4l2_dev,
1863 "CODA_COMMAND_SET_FRAME_BUF timeout\n");
1864 return -ETIMEDOUT;
1865 }
1866
1867 return 0;
1868 }
1869
1870 static int coda_encode_header(struct coda_ctx *ctx, struct vb2_buffer *buf,
1871 int header_code, u8 *header, int *size)
1872 {
1873 struct coda_dev *dev = ctx->dev;
1874 int ret;
1875
1876 coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0),
1877 CODA_CMD_ENC_HEADER_BB_START);
1878 coda_write(dev, vb2_plane_size(buf, 0), CODA_CMD_ENC_HEADER_BB_SIZE);
1879 coda_write(dev, header_code, CODA_CMD_ENC_HEADER_CODE);
1880 ret = coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER);
1881 if (ret < 0) {
1882 v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n");
1883 return ret;
1884 }
1885 *size = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->reg_idx)) -
1886 coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
1887 memcpy(header, vb2_plane_vaddr(buf, 0), *size);
1888
1889 return 0;
1890 }
1891
1892 static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
1893 {
1894 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1895 struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev;
1896 u32 bitstream_buf, bitstream_size;
1897 struct coda_dev *dev = ctx->dev;
1898 struct coda_q_data *q_data_src, *q_data_dst;
1899 struct vb2_buffer *buf;
1900 u32 dst_fourcc;
1901 u32 value;
1902 int ret = 0;
1903
1904 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1905 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1906 if (q_data_src->fourcc == V4L2_PIX_FMT_H264) {
1907 if (coda_get_bitstream_payload(ctx) < 512)
1908 return -EINVAL;
1909 } else {
1910 if (count < 1)
1911 return -EINVAL;
1912 }
1913
1914 ctx->streamon_out = 1;
1915
1916 if (coda_format_is_yuv(q_data_src->fourcc))
1917 ctx->inst_type = CODA_INST_ENCODER;
1918 else
1919 ctx->inst_type = CODA_INST_DECODER;
1920 } else {
1921 if (count < 1)
1922 return -EINVAL;
1923
1924 ctx->streamon_cap = 1;
1925 }
1926
1927 /* Don't start the coda unless both queues are on */
1928 if (!(ctx->streamon_out & ctx->streamon_cap))
1929 return 0;
1930
1931 /* Allow device_run with no buffers queued and after streamoff */
1932 v4l2_m2m_set_src_buffered(ctx->m2m_ctx, true);
1933
1934 ctx->gopcounter = ctx->params.gop_size - 1;
1935 buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
1936 bitstream_buf = vb2_dma_contig_plane_dma_addr(buf, 0);
1937 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1938 bitstream_size = q_data_dst->sizeimage;
1939 dst_fourcc = q_data_dst->fourcc;
1940
1941 ctx->codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
1942 q_data_dst->fourcc);
1943 if (!ctx->codec) {
1944 v4l2_err(v4l2_dev, "couldn't tell instance type.\n");
1945 return -EINVAL;
1946 }
1947
1948 /* Allocate per-instance buffers */
1949 ret = coda_alloc_context_buffers(ctx, q_data_src);
1950 if (ret < 0)
1951 return ret;
1952
1953 if (ctx->inst_type == CODA_INST_DECODER) {
1954 mutex_lock(&dev->coda_mutex);
1955 ret = coda_start_decoding(ctx);
1956 mutex_unlock(&dev->coda_mutex);
1957 if (ret == -EAGAIN) {
1958 return 0;
1959 } else if (ret < 0) {
1960 return ret;
1961 } else {
1962 ctx->initialized = 1;
1963 return 0;
1964 }
1965 }
1966
1967 if (!coda_is_initialized(dev)) {
1968 v4l2_err(v4l2_dev, "coda is not initialized.\n");
1969 return -EFAULT;
1970 }
1971
1972 mutex_lock(&dev->coda_mutex);
1973
1974 coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
1975 coda_write(dev, bitstream_buf, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
1976 coda_write(dev, bitstream_buf, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
1977 switch (dev->devtype->product) {
1978 case CODA_DX6:
1979 coda_write(dev, CODADX6_STREAM_BUF_DYNALLOC_EN |
1980 CODADX6_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
1981 break;
1982 default:
1983 coda_write(dev, CODA7_STREAM_BUF_DYNALLOC_EN |
1984 CODA7_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
1985 }
1986
1987 if (dev->devtype->product == CODA_DX6) {
1988 /* Configure the coda */
1989 coda_write(dev, dev->iram_paddr, CODADX6_REG_BIT_SEARCH_RAM_BASE_ADDR);
1990 }
1991
1992 /* Could set rotation here if needed */
1993 switch (dev->devtype->product) {
1994 case CODA_DX6:
1995 value = (q_data_src->width & CODADX6_PICWIDTH_MASK) << CODADX6_PICWIDTH_OFFSET;
1996 value |= (q_data_src->height & CODADX6_PICHEIGHT_MASK) << CODA_PICHEIGHT_OFFSET;
1997 break;
1998 default:
1999 value = (q_data_src->width & CODA7_PICWIDTH_MASK) << CODA7_PICWIDTH_OFFSET;
2000 value |= (q_data_src->height & CODA7_PICHEIGHT_MASK) << CODA_PICHEIGHT_OFFSET;
2001 }
2002 coda_write(dev, value, CODA_CMD_ENC_SEQ_SRC_SIZE);
2003 coda_write(dev, ctx->params.framerate,
2004 CODA_CMD_ENC_SEQ_SRC_F_RATE);
2005
2006 ctx->params.codec_mode = ctx->codec->mode;
2007 switch (dst_fourcc) {
2008 case V4L2_PIX_FMT_MPEG4:
2009 coda_write(dev, CODA_STD_MPEG4, CODA_CMD_ENC_SEQ_COD_STD);
2010 coda_write(dev, 0, CODA_CMD_ENC_SEQ_MP4_PARA);
2011 break;
2012 case V4L2_PIX_FMT_H264:
2013 coda_write(dev, CODA_STD_H264, CODA_CMD_ENC_SEQ_COD_STD);
2014 coda_write(dev, 0, CODA_CMD_ENC_SEQ_264_PARA);
2015 break;
2016 default:
2017 v4l2_err(v4l2_dev,
2018 "dst format (0x%08x) invalid.\n", dst_fourcc);
2019 ret = -EINVAL;
2020 goto out;
2021 }
2022
2023 switch (ctx->params.slice_mode) {
2024 case V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE:
2025 value = 0;
2026 break;
2027 case V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB:
2028 value = (ctx->params.slice_max_mb & CODA_SLICING_SIZE_MASK) << CODA_SLICING_SIZE_OFFSET;
2029 value |= (1 & CODA_SLICING_UNIT_MASK) << CODA_SLICING_UNIT_OFFSET;
2030 value |= 1 & CODA_SLICING_MODE_MASK;
2031 break;
2032 case V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES:
2033 value = (ctx->params.slice_max_bits & CODA_SLICING_SIZE_MASK) << CODA_SLICING_SIZE_OFFSET;
2034 value |= (0 & CODA_SLICING_UNIT_MASK) << CODA_SLICING_UNIT_OFFSET;
2035 value |= 1 & CODA_SLICING_MODE_MASK;
2036 break;
2037 }
2038 coda_write(dev, value, CODA_CMD_ENC_SEQ_SLICE_MODE);
2039 value = ctx->params.gop_size & CODA_GOP_SIZE_MASK;
2040 coda_write(dev, value, CODA_CMD_ENC_SEQ_GOP_SIZE);
2041
2042 if (ctx->params.bitrate) {
2043 /* Rate control enabled */
2044 value = (ctx->params.bitrate & CODA_RATECONTROL_BITRATE_MASK) << CODA_RATECONTROL_BITRATE_OFFSET;
2045 value |= 1 & CODA_RATECONTROL_ENABLE_MASK;
2046 } else {
2047 value = 0;
2048 }
2049 coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_PARA);
2050
2051 coda_write(dev, 0, CODA_CMD_ENC_SEQ_RC_BUF_SIZE);
2052 coda_write(dev, 0, CODA_CMD_ENC_SEQ_INTRA_REFRESH);
2053
2054 coda_write(dev, bitstream_buf, CODA_CMD_ENC_SEQ_BB_START);
2055 coda_write(dev, bitstream_size / 1024, CODA_CMD_ENC_SEQ_BB_SIZE);
2056
2057 /* set default gamma */
2058 value = (CODA_DEFAULT_GAMMA & CODA_GAMMA_MASK) << CODA_GAMMA_OFFSET;
2059 coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_GAMMA);
2060
2061 if (CODA_DEFAULT_GAMMA > 0) {
2062 if (dev->devtype->product == CODA_DX6)
2063 value = 1 << CODADX6_OPTION_GAMMA_OFFSET;
2064 else
2065 value = 1 << CODA7_OPTION_GAMMA_OFFSET;
2066 } else {
2067 value = 0;
2068 }
2069 coda_write(dev, value, CODA_CMD_ENC_SEQ_OPTION);
2070
2071 coda_setup_iram(ctx);
2072
2073 if (dst_fourcc == V4L2_PIX_FMT_H264) {
2074 value = (FMO_SLICE_SAVE_BUF_SIZE << 7);
2075 value |= (0 & CODA_FMOPARAM_TYPE_MASK) << CODA_FMOPARAM_TYPE_OFFSET;
2076 value |= 0 & CODA_FMOPARAM_SLICENUM_MASK;
2077 if (dev->devtype->product == CODA_DX6) {
2078 coda_write(dev, value, CODADX6_CMD_ENC_SEQ_FMO);
2079 } else {
2080 coda_write(dev, ctx->iram_info.search_ram_paddr,
2081 CODA7_CMD_ENC_SEQ_SEARCH_BASE);
2082 coda_write(dev, ctx->iram_info.search_ram_size,
2083 CODA7_CMD_ENC_SEQ_SEARCH_SIZE);
2084 }
2085 }
2086
2087 ret = coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT);
2088 if (ret < 0) {
2089 v4l2_err(v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
2090 goto out;
2091 }
2092
2093 if (coda_read(dev, CODA_RET_ENC_SEQ_SUCCESS) == 0) {
2094 v4l2_err(v4l2_dev, "CODA_COMMAND_SEQ_INIT failed\n");
2095 ret = -EFAULT;
2096 goto out;
2097 }
2098
2099 ctx->num_internal_frames = 2;
2100 ret = coda_alloc_framebuffers(ctx, q_data_src, dst_fourcc);
2101 if (ret < 0) {
2102 v4l2_err(v4l2_dev, "failed to allocate framebuffers\n");
2103 goto out;
2104 }
2105
2106 coda_write(dev, ctx->num_internal_frames, CODA_CMD_SET_FRAME_BUF_NUM);
2107 coda_write(dev, round_up(q_data_src->width, 8), CODA_CMD_SET_FRAME_BUF_STRIDE);
2108 if (dev->devtype->product == CODA_7541)
2109 coda_write(dev, round_up(q_data_src->width, 8),
2110 CODA7_CMD_SET_FRAME_SOURCE_BUF_STRIDE);
2111 if (dev->devtype->product != CODA_DX6) {
2112 coda_write(dev, ctx->iram_info.buf_bit_use,
2113 CODA7_CMD_SET_FRAME_AXI_BIT_ADDR);
2114 coda_write(dev, ctx->iram_info.buf_ip_ac_dc_use,
2115 CODA7_CMD_SET_FRAME_AXI_IPACDC_ADDR);
2116 coda_write(dev, ctx->iram_info.buf_dbk_y_use,
2117 CODA7_CMD_SET_FRAME_AXI_DBKY_ADDR);
2118 coda_write(dev, ctx->iram_info.buf_dbk_c_use,
2119 CODA7_CMD_SET_FRAME_AXI_DBKC_ADDR);
2120 coda_write(dev, ctx->iram_info.buf_ovl_use,
2121 CODA7_CMD_SET_FRAME_AXI_OVL_ADDR);
2122 }
2123 ret = coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF);
2124 if (ret < 0) {
2125 v4l2_err(v4l2_dev, "CODA_COMMAND_SET_FRAME_BUF timeout\n");
2126 goto out;
2127 }
2128
2129 /* Save stream headers */
2130 buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
2131 switch (dst_fourcc) {
2132 case V4L2_PIX_FMT_H264:
2133 /*
2134 * Get SPS in the first frame and copy it to an
2135 * intermediate buffer.
2136 */
2137 ret = coda_encode_header(ctx, buf, CODA_HEADER_H264_SPS,
2138 &ctx->vpu_header[0][0],
2139 &ctx->vpu_header_size[0]);
2140 if (ret < 0)
2141 goto out;
2142
2143 /*
2144 * Get PPS in the first frame and copy it to an
2145 * intermediate buffer.
2146 */
2147 ret = coda_encode_header(ctx, buf, CODA_HEADER_H264_PPS,
2148 &ctx->vpu_header[1][0],
2149 &ctx->vpu_header_size[1]);
2150 if (ret < 0)
2151 goto out;
2152
2153 /*
2154 * Length of H.264 headers is variable and thus it might not be
2155 * aligned for the coda to append the encoded frame. In that is
2156 * the case a filler NAL must be added to header 2.
2157 */
2158 ctx->vpu_header_size[2] = coda_h264_padding(
2159 (ctx->vpu_header_size[0] +
2160 ctx->vpu_header_size[1]),
2161 ctx->vpu_header[2]);
2162 break;
2163 case V4L2_PIX_FMT_MPEG4:
2164 /*
2165 * Get VOS in the first frame and copy it to an
2166 * intermediate buffer
2167 */
2168 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VOS,
2169 &ctx->vpu_header[0][0],
2170 &ctx->vpu_header_size[0]);
2171 if (ret < 0)
2172 goto out;
2173
2174 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VIS,
2175 &ctx->vpu_header[1][0],
2176 &ctx->vpu_header_size[1]);
2177 if (ret < 0)
2178 goto out;
2179
2180 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VOL,
2181 &ctx->vpu_header[2][0],
2182 &ctx->vpu_header_size[2]);
2183 if (ret < 0)
2184 goto out;
2185 break;
2186 default:
2187 /* No more formats need to save headers at the moment */
2188 break;
2189 }
2190
2191 out:
2192 mutex_unlock(&dev->coda_mutex);
2193 return ret;
2194 }
2195
2196 static int coda_stop_streaming(struct vb2_queue *q)
2197 {
2198 struct coda_ctx *ctx = vb2_get_drv_priv(q);
2199 struct coda_dev *dev = ctx->dev;
2200
2201 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
2202 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
2203 "%s: output\n", __func__);
2204 ctx->streamon_out = 0;
2205
2206 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
2207
2208 ctx->isequence = 0;
2209 } else {
2210 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
2211 "%s: capture\n", __func__);
2212 ctx->streamon_cap = 0;
2213
2214 ctx->osequence = 0;
2215 }
2216
2217 if (!ctx->streamon_out && !ctx->streamon_cap) {
2218 kfifo_init(&ctx->bitstream_fifo,
2219 ctx->bitstream.vaddr, ctx->bitstream.size);
2220 ctx->runcounter = 0;
2221 }
2222
2223 return 0;
2224 }
2225
2226 static struct vb2_ops coda_qops = {
2227 .queue_setup = coda_queue_setup,
2228 .buf_prepare = coda_buf_prepare,
2229 .buf_queue = coda_buf_queue,
2230 .wait_prepare = coda_wait_prepare,
2231 .wait_finish = coda_wait_finish,
2232 .start_streaming = coda_start_streaming,
2233 .stop_streaming = coda_stop_streaming,
2234 };
2235
2236 static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
2237 {
2238 struct coda_ctx *ctx =
2239 container_of(ctrl->handler, struct coda_ctx, ctrls);
2240
2241 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
2242 "s_ctrl: id = %d, val = %d\n", ctrl->id, ctrl->val);
2243
2244 switch (ctrl->id) {
2245 case V4L2_CID_HFLIP:
2246 if (ctrl->val)
2247 ctx->params.rot_mode |= CODA_MIR_HOR;
2248 else
2249 ctx->params.rot_mode &= ~CODA_MIR_HOR;
2250 break;
2251 case V4L2_CID_VFLIP:
2252 if (ctrl->val)
2253 ctx->params.rot_mode |= CODA_MIR_VER;
2254 else
2255 ctx->params.rot_mode &= ~CODA_MIR_VER;
2256 break;
2257 case V4L2_CID_MPEG_VIDEO_BITRATE:
2258 ctx->params.bitrate = ctrl->val / 1000;
2259 break;
2260 case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
2261 ctx->params.gop_size = ctrl->val;
2262 break;
2263 case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
2264 ctx->params.h264_intra_qp = ctrl->val;
2265 break;
2266 case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
2267 ctx->params.h264_inter_qp = ctrl->val;
2268 break;
2269 case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
2270 ctx->params.mpeg4_intra_qp = ctrl->val;
2271 break;
2272 case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
2273 ctx->params.mpeg4_inter_qp = ctrl->val;
2274 break;
2275 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
2276 ctx->params.slice_mode = ctrl->val;
2277 break;
2278 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
2279 ctx->params.slice_max_mb = ctrl->val;
2280 break;
2281 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
2282 ctx->params.slice_max_bits = ctrl->val * 8;
2283 break;
2284 case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
2285 break;
2286 default:
2287 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
2288 "Invalid control, id=%d, val=%d\n",
2289 ctrl->id, ctrl->val);
2290 return -EINVAL;
2291 }
2292
2293 return 0;
2294 }
2295
2296 static struct v4l2_ctrl_ops coda_ctrl_ops = {
2297 .s_ctrl = coda_s_ctrl,
2298 };
2299
2300 static int coda_ctrls_setup(struct coda_ctx *ctx)
2301 {
2302 v4l2_ctrl_handler_init(&ctx->ctrls, 9);
2303
2304 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2305 V4L2_CID_HFLIP, 0, 1, 1, 0);
2306 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2307 V4L2_CID_VFLIP, 0, 1, 1, 0);
2308 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2309 V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1, 0);
2310 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2311 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 60, 1, 16);
2312 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2313 V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 1, 51, 1, 25);
2314 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2315 V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 1, 51, 1, 25);
2316 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2317 V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
2318 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2319 V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
2320 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2321 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
2322 V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES, 0x0,
2323 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
2324 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2325 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
2326 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
2327 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1, 500);
2328 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
2329 V4L2_CID_MPEG_VIDEO_HEADER_MODE,
2330 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
2331 (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE),
2332 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
2333
2334 if (ctx->ctrls.error) {
2335 v4l2_err(&ctx->dev->v4l2_dev, "control initialization error (%d)",
2336 ctx->ctrls.error);
2337 return -EINVAL;
2338 }
2339
2340 return v4l2_ctrl_handler_setup(&ctx->ctrls);
2341 }
2342
2343 static int coda_queue_init(void *priv, struct vb2_queue *src_vq,
2344 struct vb2_queue *dst_vq)
2345 {
2346 struct coda_ctx *ctx = priv;
2347 int ret;
2348
2349 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2350 src_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
2351 src_vq->drv_priv = ctx;
2352 src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
2353 src_vq->ops = &coda_qops;
2354 src_vq->mem_ops = &vb2_dma_contig_memops;
2355 src_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
2356
2357 ret = vb2_queue_init(src_vq);
2358 if (ret)
2359 return ret;
2360
2361 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2362 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
2363 dst_vq->drv_priv = ctx;
2364 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
2365 dst_vq->ops = &coda_qops;
2366 dst_vq->mem_ops = &vb2_dma_contig_memops;
2367 dst_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
2368
2369 return vb2_queue_init(dst_vq);
2370 }
2371
2372 static int coda_next_free_instance(struct coda_dev *dev)
2373 {
2374 return ffz(dev->instance_mask);
2375 }
2376
2377 static int coda_open(struct file *file)
2378 {
2379 struct coda_dev *dev = video_drvdata(file);
2380 struct coda_ctx *ctx = NULL;
2381 int ret;
2382 int idx;
2383
2384 ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
2385 if (!ctx)
2386 return -ENOMEM;
2387
2388 idx = coda_next_free_instance(dev);
2389 if (idx >= CODA_MAX_INSTANCES) {
2390 ret = -EBUSY;
2391 goto err_coda_max;
2392 }
2393 set_bit(idx, &dev->instance_mask);
2394
2395 INIT_WORK(&ctx->skip_run, coda_skip_run);
2396 v4l2_fh_init(&ctx->fh, video_devdata(file));
2397 file->private_data = &ctx->fh;
2398 v4l2_fh_add(&ctx->fh);
2399 ctx->dev = dev;
2400 ctx->idx = idx;
2401 switch (dev->devtype->product) {
2402 case CODA_7541:
2403 ctx->reg_idx = 0;
2404 break;
2405 default:
2406 ctx->reg_idx = idx;
2407 }
2408
2409 ret = clk_prepare_enable(dev->clk_per);
2410 if (ret)
2411 goto err_clk_per;
2412
2413 ret = clk_prepare_enable(dev->clk_ahb);
2414 if (ret)
2415 goto err_clk_ahb;
2416
2417 set_default_params(ctx);
2418 ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
2419 &coda_queue_init);
2420 if (IS_ERR(ctx->m2m_ctx)) {
2421 ret = PTR_ERR(ctx->m2m_ctx);
2422
2423 v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
2424 __func__, ret);
2425 goto err_ctx_init;
2426 }
2427 ret = coda_ctrls_setup(ctx);
2428 if (ret) {
2429 v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
2430 goto err_ctrls_setup;
2431 }
2432
2433 ctx->fh.ctrl_handler = &ctx->ctrls;
2434
2435 ret = coda_alloc_context_buf(ctx, &ctx->parabuf, CODA_PARA_BUF_SIZE);
2436 if (ret < 0) {
2437 v4l2_err(&dev->v4l2_dev, "failed to allocate parabuf");
2438 goto err_dma_alloc;
2439 }
2440
2441 ctx->bitstream.size = CODA_MAX_FRAME_SIZE;
2442 ctx->bitstream.vaddr = dma_alloc_writecombine(&dev->plat_dev->dev,
2443 ctx->bitstream.size, &ctx->bitstream.paddr, GFP_KERNEL);
2444 if (!ctx->bitstream.vaddr) {
2445 v4l2_err(&dev->v4l2_dev, "failed to allocate bitstream ringbuffer");
2446 ret = -ENOMEM;
2447 goto err_dma_writecombine;
2448 }
2449 kfifo_init(&ctx->bitstream_fifo,
2450 ctx->bitstream.vaddr, ctx->bitstream.size);
2451 mutex_init(&ctx->bitstream_mutex);
2452 mutex_init(&ctx->buffer_mutex);
2453
2454 coda_lock(ctx);
2455 list_add(&ctx->list, &dev->instances);
2456 coda_unlock(ctx);
2457
2458 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Created instance %d (%p)\n",
2459 ctx->idx, ctx);
2460
2461 return 0;
2462
2463 err_dma_writecombine:
2464 coda_free_context_buffers(ctx);
2465 if (ctx->dev->devtype->product == CODA_DX6)
2466 coda_free_aux_buf(dev, &ctx->workbuf);
2467 coda_free_aux_buf(dev, &ctx->parabuf);
2468 err_dma_alloc:
2469 v4l2_ctrl_handler_free(&ctx->ctrls);
2470 err_ctrls_setup:
2471 v4l2_m2m_ctx_release(ctx->m2m_ctx);
2472 err_ctx_init:
2473 clk_disable_unprepare(dev->clk_ahb);
2474 err_clk_ahb:
2475 clk_disable_unprepare(dev->clk_per);
2476 err_clk_per:
2477 v4l2_fh_del(&ctx->fh);
2478 v4l2_fh_exit(&ctx->fh);
2479 clear_bit(ctx->idx, &dev->instance_mask);
2480 err_coda_max:
2481 kfree(ctx);
2482 return ret;
2483 }
2484
2485 static int coda_release(struct file *file)
2486 {
2487 struct coda_dev *dev = video_drvdata(file);
2488 struct coda_ctx *ctx = fh_to_ctx(file->private_data);
2489
2490 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Releasing instance %p\n",
2491 ctx);
2492
2493 /* If this instance is running, call .job_abort and wait for it to end */
2494 v4l2_m2m_ctx_release(ctx->m2m_ctx);
2495
2496 /* In case the instance was not running, we still need to call SEQ_END */
2497 mutex_lock(&dev->coda_mutex);
2498 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
2499 "%s: sent command 'SEQ_END' to coda\n", __func__);
2500 if (coda_command_sync(ctx, CODA_COMMAND_SEQ_END)) {
2501 v4l2_err(&dev->v4l2_dev,
2502 "CODA_COMMAND_SEQ_END failed\n");
2503 mutex_unlock(&dev->coda_mutex);
2504 return -ETIMEDOUT;
2505 }
2506 mutex_unlock(&dev->coda_mutex);
2507
2508 coda_free_framebuffers(ctx);
2509
2510 coda_lock(ctx);
2511 list_del(&ctx->list);
2512 coda_unlock(ctx);
2513
2514 dma_free_writecombine(&dev->plat_dev->dev, ctx->bitstream.size,
2515 ctx->bitstream.vaddr, ctx->bitstream.paddr);
2516 coda_free_context_buffers(ctx);
2517 if (ctx->dev->devtype->product == CODA_DX6)
2518 coda_free_aux_buf(dev, &ctx->workbuf);
2519
2520 coda_free_aux_buf(dev, &ctx->parabuf);
2521 v4l2_ctrl_handler_free(&ctx->ctrls);
2522 clk_disable_unprepare(dev->clk_ahb);
2523 clk_disable_unprepare(dev->clk_per);
2524 v4l2_fh_del(&ctx->fh);
2525 v4l2_fh_exit(&ctx->fh);
2526 clear_bit(ctx->idx, &dev->instance_mask);
2527 kfree(ctx);
2528
2529 return 0;
2530 }
2531
2532 static unsigned int coda_poll(struct file *file,
2533 struct poll_table_struct *wait)
2534 {
2535 struct coda_ctx *ctx = fh_to_ctx(file->private_data);
2536 int ret;
2537
2538 coda_lock(ctx);
2539 ret = v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
2540 coda_unlock(ctx);
2541 return ret;
2542 }
2543
2544 static int coda_mmap(struct file *file, struct vm_area_struct *vma)
2545 {
2546 struct coda_ctx *ctx = fh_to_ctx(file->private_data);
2547
2548 return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
2549 }
2550
2551 static const struct v4l2_file_operations coda_fops = {
2552 .owner = THIS_MODULE,
2553 .open = coda_open,
2554 .release = coda_release,
2555 .poll = coda_poll,
2556 .unlocked_ioctl = video_ioctl2,
2557 .mmap = coda_mmap,
2558 };
2559
2560 static void coda_finish_decode(struct coda_ctx *ctx)
2561 {
2562 struct coda_dev *dev = ctx->dev;
2563 struct coda_q_data *q_data_src;
2564 struct coda_q_data *q_data_dst;
2565 struct vb2_buffer *dst_buf;
2566 int width, height;
2567 int decoded_idx;
2568 int display_idx;
2569 u32 src_fourcc;
2570 int success;
2571 u32 val;
2572
2573 dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
2574
2575 /* Update kfifo out pointer from coda bitstream read pointer */
2576 coda_kfifo_sync_from_device(ctx);
2577
2578 /*
2579 * in stream-end mode, the read pointer can overshoot the write pointer
2580 * by up to 512 bytes
2581 */
2582 if (ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) {
2583 if (coda_get_bitstream_payload(ctx) >= 0x100000 - 512)
2584 kfifo_init(&ctx->bitstream_fifo,
2585 ctx->bitstream.vaddr, ctx->bitstream.size);
2586 }
2587
2588 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
2589 src_fourcc = q_data_src->fourcc;
2590
2591 val = coda_read(dev, CODA_RET_DEC_PIC_SUCCESS);
2592 if (val != 1)
2593 pr_err("DEC_PIC_SUCCESS = %d\n", val);
2594
2595 success = val & 0x1;
2596 if (!success)
2597 v4l2_err(&dev->v4l2_dev, "decode failed\n");
2598
2599 if (src_fourcc == V4L2_PIX_FMT_H264) {
2600 if (val & (1 << 3))
2601 v4l2_err(&dev->v4l2_dev,
2602 "insufficient PS buffer space (%d bytes)\n",
2603 ctx->psbuf.size);
2604 if (val & (1 << 2))
2605 v4l2_err(&dev->v4l2_dev,
2606 "insufficient slice buffer space (%d bytes)\n",
2607 ctx->slicebuf.size);
2608 }
2609
2610 val = coda_read(dev, CODA_RET_DEC_PIC_SIZE);
2611 width = (val >> 16) & 0xffff;
2612 height = val & 0xffff;
2613
2614 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
2615
2616 val = coda_read(dev, CODA_RET_DEC_PIC_TYPE);
2617 if ((val & 0x7) == 0) {
2618 dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
2619 dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME;
2620 } else {
2621 dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME;
2622 dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME;
2623 }
2624
2625 val = coda_read(dev, CODA_RET_DEC_PIC_ERR_MB);
2626 if (val > 0)
2627 v4l2_err(&dev->v4l2_dev,
2628 "errors in %d macroblocks\n", val);
2629
2630 if (dev->devtype->product == CODA_7541) {
2631 val = coda_read(dev, CODA_RET_DEC_PIC_OPTION);
2632 if (val == 0) {
2633 /* not enough bitstream data */
2634 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
2635 "prescan failed: %d\n", val);
2636 ctx->prescan_failed = true;
2637 return;
2638 }
2639 }
2640
2641 ctx->frm_dis_flg = coda_read(dev, CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
2642
2643 /*
2644 * The previous display frame was copied out by the rotator,
2645 * now it can be overwritten again
2646 */
2647 if (ctx->display_idx >= 0 &&
2648 ctx->display_idx < ctx->num_internal_frames) {
2649 ctx->frm_dis_flg &= ~(1 << ctx->display_idx);
2650 coda_write(dev, ctx->frm_dis_flg,
2651 CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
2652 }
2653
2654 /*
2655 * The index of the last decoded frame, not necessarily in
2656 * display order, and the index of the next display frame.
2657 * The latter could have been decoded in a previous run.
2658 */
2659 decoded_idx = coda_read(dev, CODA_RET_DEC_PIC_CUR_IDX);
2660 display_idx = coda_read(dev, CODA_RET_DEC_PIC_FRAME_IDX);
2661
2662 if (decoded_idx == -1) {
2663 /* no frame was decoded, but we might have a display frame */
2664 if (display_idx < 0 && ctx->display_idx < 0)
2665 ctx->prescan_failed = true;
2666 } else if (decoded_idx == -2) {
2667 /* no frame was decoded, we still return the remaining buffers */
2668 } else if (decoded_idx < 0 || decoded_idx >= ctx->num_internal_frames) {
2669 v4l2_err(&dev->v4l2_dev,
2670 "decoded frame index out of range: %d\n", decoded_idx);
2671 }
2672
2673 if (display_idx == -1) {
2674 /*
2675 * no more frames to be decoded, but there could still
2676 * be rotator output to dequeue
2677 */
2678 ctx->prescan_failed = true;
2679 } else if (display_idx == -3) {
2680 /* possibly prescan failure */
2681 } else if (display_idx < 0 || display_idx >= ctx->num_internal_frames) {
2682 v4l2_err(&dev->v4l2_dev,
2683 "presentation frame index out of range: %d\n",
2684 display_idx);
2685 }
2686
2687 /* If a frame was copied out, return it */
2688 if (ctx->display_idx >= 0 &&
2689 ctx->display_idx < ctx->num_internal_frames) {
2690 dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
2691 dst_buf->v4l2_buf.sequence = ctx->osequence++;
2692
2693 vb2_set_plane_payload(dst_buf, 0, width * height * 3 / 2);
2694
2695 v4l2_m2m_buf_done(dst_buf, success ? VB2_BUF_STATE_DONE :
2696 VB2_BUF_STATE_ERROR);
2697
2698 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
2699 "job finished: decoding frame (%d) (%s)\n",
2700 dst_buf->v4l2_buf.sequence,
2701 (dst_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) ?
2702 "KEYFRAME" : "PFRAME");
2703 } else {
2704 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
2705 "job finished: no frame decoded\n");
2706 }
2707
2708 /* The rotator will copy the current display frame next time */
2709 ctx->display_idx = display_idx;
2710 }
2711
2712 static void coda_finish_encode(struct coda_ctx *ctx)
2713 {
2714 struct vb2_buffer *src_buf, *dst_buf;
2715 struct coda_dev *dev = ctx->dev;
2716 u32 wr_ptr, start_ptr;
2717
2718 src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
2719 dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
2720
2721 /* Get results from the coda */
2722 coda_read(dev, CODA_RET_ENC_PIC_TYPE);
2723 start_ptr = coda_read(dev, CODA_CMD_ENC_PIC_BB_START);
2724 wr_ptr = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
2725
2726 /* Calculate bytesused field */
2727 if (dst_buf->v4l2_buf.sequence == 0) {
2728 vb2_set_plane_payload(dst_buf, 0, wr_ptr - start_ptr +
2729 ctx->vpu_header_size[0] +
2730 ctx->vpu_header_size[1] +
2731 ctx->vpu_header_size[2]);
2732 } else {
2733 vb2_set_plane_payload(dst_buf, 0, wr_ptr - start_ptr);
2734 }
2735
2736 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, "frame size = %u\n",
2737 wr_ptr - start_ptr);
2738
2739 coda_read(dev, CODA_RET_ENC_PIC_SLICE_NUM);
2740 coda_read(dev, CODA_RET_ENC_PIC_FLAG);
2741
2742 if (src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) {
2743 dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
2744 dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME;
2745 } else {
2746 dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME;
2747 dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME;
2748 }
2749
2750 dst_buf->v4l2_buf.timestamp = src_buf->v4l2_buf.timestamp;
2751 dst_buf->v4l2_buf.timecode = src_buf->v4l2_buf.timecode;
2752
2753 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
2754 v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
2755
2756 ctx->gopcounter--;
2757 if (ctx->gopcounter < 0)
2758 ctx->gopcounter = ctx->params.gop_size - 1;
2759
2760 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
2761 "job finished: encoding frame (%d) (%s)\n",
2762 dst_buf->v4l2_buf.sequence,
2763 (dst_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) ?
2764 "KEYFRAME" : "PFRAME");
2765 }
2766
2767 static irqreturn_t coda_irq_handler(int irq, void *data)
2768 {
2769 struct coda_dev *dev = data;
2770 struct coda_ctx *ctx;
2771
2772 cancel_delayed_work(&dev->timeout);
2773
2774 /* read status register to attend the IRQ */
2775 coda_read(dev, CODA_REG_BIT_INT_STATUS);
2776 coda_write(dev, CODA_REG_BIT_INT_CLEAR_SET,
2777 CODA_REG_BIT_INT_CLEAR);
2778
2779 ctx = v4l2_m2m_get_curr_priv(dev->m2m_dev);
2780 if (ctx == NULL) {
2781 v4l2_err(&dev->v4l2_dev, "Instance released before the end of transaction\n");
2782 mutex_unlock(&dev->coda_mutex);
2783 return IRQ_HANDLED;
2784 }
2785
2786 if (ctx->aborting) {
2787 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
2788 "task has been aborted\n");
2789 goto out;
2790 }
2791
2792 if (coda_isbusy(ctx->dev)) {
2793 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
2794 "coda is still busy!!!!\n");
2795 return IRQ_NONE;
2796 }
2797
2798 if (ctx->inst_type == CODA_INST_DECODER)
2799 coda_finish_decode(ctx);
2800 else
2801 coda_finish_encode(ctx);
2802
2803 out:
2804 if (ctx->aborting || (!ctx->streamon_cap && !ctx->streamon_out)) {
2805 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
2806 "%s: sent command 'SEQ_END' to coda\n", __func__);
2807 if (coda_command_sync(ctx, CODA_COMMAND_SEQ_END)) {
2808 v4l2_err(&dev->v4l2_dev,
2809 "CODA_COMMAND_SEQ_END failed\n");
2810 }
2811
2812 kfifo_init(&ctx->bitstream_fifo,
2813 ctx->bitstream.vaddr, ctx->bitstream.size);
2814
2815 coda_free_framebuffers(ctx);
2816 coda_free_context_buffers(ctx);
2817 }
2818
2819 mutex_unlock(&dev->coda_mutex);
2820 mutex_unlock(&ctx->buffer_mutex);
2821
2822 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->m2m_ctx);
2823
2824 return IRQ_HANDLED;
2825 }
2826
2827 static void coda_timeout(struct work_struct *work)
2828 {
2829 struct coda_ctx *ctx;
2830 struct coda_dev *dev = container_of(to_delayed_work(work),
2831 struct coda_dev, timeout);
2832
2833 dev_err(&dev->plat_dev->dev, "CODA PIC_RUN timeout, stopping all streams\n");
2834
2835 mutex_lock(&dev->dev_mutex);
2836 list_for_each_entry(ctx, &dev->instances, list) {
2837 if (mutex_is_locked(&ctx->buffer_mutex))
2838 mutex_unlock(&ctx->buffer_mutex);
2839 v4l2_m2m_streamoff(NULL, ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
2840 v4l2_m2m_streamoff(NULL, ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
2841 }
2842 mutex_unlock(&dev->dev_mutex);
2843
2844 mutex_unlock(&dev->coda_mutex);
2845 ctx = v4l2_m2m_get_curr_priv(dev->m2m_dev);
2846 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->m2m_ctx);
2847 }
2848
2849 static u32 coda_supported_firmwares[] = {
2850 CODA_FIRMWARE_VERNUM(CODA_DX6, 2, 2, 5),
2851 CODA_FIRMWARE_VERNUM(CODA_7541, 1, 4, 50),
2852 };
2853
2854 static bool coda_firmware_supported(u32 vernum)
2855 {
2856 int i;
2857
2858 for (i = 0; i < ARRAY_SIZE(coda_supported_firmwares); i++)
2859 if (vernum == coda_supported_firmwares[i])
2860 return true;
2861 return false;
2862 }
2863
2864 static char *coda_product_name(int product)
2865 {
2866 static char buf[9];
2867
2868 switch (product) {
2869 case CODA_DX6:
2870 return "CodaDx6";
2871 case CODA_7541:
2872 return "CODA7541";
2873 default:
2874 snprintf(buf, sizeof(buf), "(0x%04x)", product);
2875 return buf;
2876 }
2877 }
2878
2879 static int coda_hw_init(struct coda_dev *dev)
2880 {
2881 u16 product, major, minor, release;
2882 u32 data;
2883 u16 *p;
2884 int i, ret;
2885
2886 ret = clk_prepare_enable(dev->clk_per);
2887 if (ret)
2888 return ret;
2889
2890 ret = clk_prepare_enable(dev->clk_ahb);
2891 if (ret)
2892 goto err_clk_ahb;
2893
2894 /*
2895 * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
2896 * The 16-bit chars in the code buffer are in memory access
2897 * order, re-sort them to CODA order for register download.
2898 * Data in this SRAM survives a reboot.
2899 */
2900 p = (u16 *)dev->codebuf.vaddr;
2901 if (dev->devtype->product == CODA_DX6) {
2902 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2903 data = CODA_DOWN_ADDRESS_SET(i) |
2904 CODA_DOWN_DATA_SET(p[i ^ 1]);
2905 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2906 }
2907 } else {
2908 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2909 data = CODA_DOWN_ADDRESS_SET(i) |
2910 CODA_DOWN_DATA_SET(p[round_down(i, 4) +
2911 3 - (i % 4)]);
2912 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2913 }
2914 }
2915
2916 /* Clear registers */
2917 for (i = 0; i < 64; i++)
2918 coda_write(dev, 0, CODA_REG_BIT_CODE_BUF_ADDR + i * 4);
2919
2920 /* Tell the BIT where to find everything it needs */
2921 if (dev->devtype->product == CODA_7541) {
2922 coda_write(dev, dev->tempbuf.paddr,
2923 CODA_REG_BIT_TEMP_BUF_ADDR);
2924 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
2925 } else {
2926 coda_write(dev, dev->workbuf.paddr,
2927 CODA_REG_BIT_WORK_BUF_ADDR);
2928 }
2929 coda_write(dev, dev->codebuf.paddr,
2930 CODA_REG_BIT_CODE_BUF_ADDR);
2931 coda_write(dev, 0, CODA_REG_BIT_CODE_RUN);
2932
2933 /* Set default values */
2934 switch (dev->devtype->product) {
2935 case CODA_DX6:
2936 coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH, CODA_REG_BIT_STREAM_CTRL);
2937 break;
2938 default:
2939 coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH, CODA_REG_BIT_STREAM_CTRL);
2940 }
2941 coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL);
2942
2943 if (dev->devtype->product != CODA_DX6)
2944 coda_write(dev, 0, CODA7_REG_BIT_AXI_SRAM_USE);
2945
2946 coda_write(dev, CODA_INT_INTERRUPT_ENABLE,
2947 CODA_REG_BIT_INT_ENABLE);
2948
2949 /* Reset VPU and start processor */
2950 data = coda_read(dev, CODA_REG_BIT_CODE_RESET);
2951 data |= CODA_REG_RESET_ENABLE;
2952 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2953 udelay(10);
2954 data &= ~CODA_REG_RESET_ENABLE;
2955 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2956 coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
2957
2958 /* Load firmware */
2959 coda_write(dev, 0, CODA_CMD_FIRMWARE_VERNUM);
2960 coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
2961 coda_write(dev, 0, CODA_REG_BIT_RUN_INDEX);
2962 coda_write(dev, 0, CODA_REG_BIT_RUN_COD_STD);
2963 coda_write(dev, CODA_COMMAND_FIRMWARE_GET, CODA_REG_BIT_RUN_COMMAND);
2964 if (coda_wait_timeout(dev)) {
2965 clk_disable_unprepare(dev->clk_per);
2966 clk_disable_unprepare(dev->clk_ahb);
2967 v4l2_err(&dev->v4l2_dev, "firmware get command error\n");
2968 return -EIO;
2969 }
2970
2971 /* Check we are compatible with the loaded firmware */
2972 data = coda_read(dev, CODA_CMD_FIRMWARE_VERNUM);
2973 product = CODA_FIRMWARE_PRODUCT(data);
2974 major = CODA_FIRMWARE_MAJOR(data);
2975 minor = CODA_FIRMWARE_MINOR(data);
2976 release = CODA_FIRMWARE_RELEASE(data);
2977
2978 clk_disable_unprepare(dev->clk_per);
2979 clk_disable_unprepare(dev->clk_ahb);
2980
2981 if (product != dev->devtype->product) {
2982 v4l2_err(&dev->v4l2_dev, "Wrong firmware. Hw: %s, Fw: %s,"
2983 " Version: %u.%u.%u\n",
2984 coda_product_name(dev->devtype->product),
2985 coda_product_name(product), major, minor, release);
2986 return -EINVAL;
2987 }
2988
2989 v4l2_info(&dev->v4l2_dev, "Initialized %s.\n",
2990 coda_product_name(product));
2991
2992 if (coda_firmware_supported(data)) {
2993 v4l2_info(&dev->v4l2_dev, "Firmware version: %u.%u.%u\n",
2994 major, minor, release);
2995 } else {
2996 v4l2_warn(&dev->v4l2_dev, "Unsupported firmware version: "
2997 "%u.%u.%u\n", major, minor, release);
2998 }
2999
3000 return 0;
3001
3002 err_clk_ahb:
3003 clk_disable_unprepare(dev->clk_per);
3004 return ret;
3005 }
3006
3007 static void coda_fw_callback(const struct firmware *fw, void *context)
3008 {
3009 struct coda_dev *dev = context;
3010 struct platform_device *pdev = dev->plat_dev;
3011 int ret;
3012
3013 if (!fw) {
3014 v4l2_err(&dev->v4l2_dev, "firmware request failed\n");
3015 return;
3016 }
3017
3018 /* allocate auxiliary per-device code buffer for the BIT processor */
3019 ret = coda_alloc_aux_buf(dev, &dev->codebuf, fw->size);
3020 if (ret < 0) {
3021 dev_err(&pdev->dev, "failed to allocate code buffer\n");
3022 return;
3023 }
3024
3025 /* Copy the whole firmware image to the code buffer */
3026 memcpy(dev->codebuf.vaddr, fw->data, fw->size);
3027 release_firmware(fw);
3028
3029 ret = coda_hw_init(dev);
3030 if (ret) {
3031 v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
3032 return;
3033 }
3034
3035 dev->vfd.fops = &coda_fops,
3036 dev->vfd.ioctl_ops = &coda_ioctl_ops;
3037 dev->vfd.release = video_device_release_empty,
3038 dev->vfd.lock = &dev->dev_mutex;
3039 dev->vfd.v4l2_dev = &dev->v4l2_dev;
3040 dev->vfd.vfl_dir = VFL_DIR_M2M;
3041 snprintf(dev->vfd.name, sizeof(dev->vfd.name), "%s", CODA_NAME);
3042 video_set_drvdata(&dev->vfd, dev);
3043
3044 dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
3045 if (IS_ERR(dev->alloc_ctx)) {
3046 v4l2_err(&dev->v4l2_dev, "Failed to alloc vb2 context\n");
3047 return;
3048 }
3049
3050 dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops);
3051 if (IS_ERR(dev->m2m_dev)) {
3052 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
3053 goto rel_ctx;
3054 }
3055
3056 ret = video_register_device(&dev->vfd, VFL_TYPE_GRABBER, 0);
3057 if (ret) {
3058 v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
3059 goto rel_m2m;
3060 }
3061 v4l2_info(&dev->v4l2_dev, "codec registered as /dev/video%d\n",
3062 dev->vfd.num);
3063
3064 return;
3065
3066 rel_m2m:
3067 v4l2_m2m_release(dev->m2m_dev);
3068 rel_ctx:
3069 vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
3070 }
3071
3072 static int coda_firmware_request(struct coda_dev *dev)
3073 {
3074 char *fw = dev->devtype->firmware;
3075
3076 dev_dbg(&dev->plat_dev->dev, "requesting firmware '%s' for %s\n", fw,
3077 coda_product_name(dev->devtype->product));
3078
3079 return request_firmware_nowait(THIS_MODULE, true,
3080 fw, &dev->plat_dev->dev, GFP_KERNEL, dev, coda_fw_callback);
3081 }
3082
3083 enum coda_platform {
3084 CODA_IMX27,
3085 CODA_IMX53,
3086 };
3087
3088 static const struct coda_devtype coda_devdata[] = {
3089 [CODA_IMX27] = {
3090 .firmware = "v4l-codadx6-imx27.bin",
3091 .product = CODA_DX6,
3092 .codecs = codadx6_codecs,
3093 .num_codecs = ARRAY_SIZE(codadx6_codecs),
3094 },
3095 [CODA_IMX53] = {
3096 .firmware = "v4l-coda7541-imx53.bin",
3097 .product = CODA_7541,
3098 .codecs = coda7_codecs,
3099 .num_codecs = ARRAY_SIZE(coda7_codecs),
3100 },
3101 };
3102
3103 static struct platform_device_id coda_platform_ids[] = {
3104 { .name = "coda-imx27", .driver_data = CODA_IMX27 },
3105 { .name = "coda-imx53", .driver_data = CODA_IMX53 },
3106 { /* sentinel */ }
3107 };
3108 MODULE_DEVICE_TABLE(platform, coda_platform_ids);
3109
3110 #ifdef CONFIG_OF
3111 static const struct of_device_id coda_dt_ids[] = {
3112 { .compatible = "fsl,imx27-vpu", .data = &coda_devdata[CODA_IMX27] },
3113 { .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] },
3114 { /* sentinel */ }
3115 };
3116 MODULE_DEVICE_TABLE(of, coda_dt_ids);
3117 #endif
3118
3119 static int coda_probe(struct platform_device *pdev)
3120 {
3121 const struct of_device_id *of_id =
3122 of_match_device(of_match_ptr(coda_dt_ids), &pdev->dev);
3123 const struct platform_device_id *pdev_id;
3124 struct coda_platform_data *pdata = pdev->dev.platform_data;
3125 struct device_node *np = pdev->dev.of_node;
3126 struct gen_pool *pool;
3127 struct coda_dev *dev;
3128 struct resource *res;
3129 int ret, irq;
3130
3131 dev = devm_kzalloc(&pdev->dev, sizeof *dev, GFP_KERNEL);
3132 if (!dev) {
3133 dev_err(&pdev->dev, "Not enough memory for %s\n",
3134 CODA_NAME);
3135 return -ENOMEM;
3136 }
3137
3138 spin_lock_init(&dev->irqlock);
3139 INIT_LIST_HEAD(&dev->instances);
3140 INIT_DELAYED_WORK(&dev->timeout, coda_timeout);
3141
3142 dev->plat_dev = pdev;
3143 dev->clk_per = devm_clk_get(&pdev->dev, "per");
3144 if (IS_ERR(dev->clk_per)) {
3145 dev_err(&pdev->dev, "Could not get per clock\n");
3146 return PTR_ERR(dev->clk_per);
3147 }
3148
3149 dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
3150 if (IS_ERR(dev->clk_ahb)) {
3151 dev_err(&pdev->dev, "Could not get ahb clock\n");
3152 return PTR_ERR(dev->clk_ahb);
3153 }
3154
3155 /* Get memory for physical registers */
3156 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
3157 dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
3158 if (IS_ERR(dev->regs_base))
3159 return PTR_ERR(dev->regs_base);
3160
3161 /* IRQ */
3162 irq = platform_get_irq(pdev, 0);
3163 if (irq < 0) {
3164 dev_err(&pdev->dev, "failed to get irq resource\n");
3165 return -ENOENT;
3166 }
3167
3168 if (devm_request_threaded_irq(&pdev->dev, irq, NULL, coda_irq_handler,
3169 IRQF_ONESHOT, CODA_NAME, dev) < 0) {
3170 dev_err(&pdev->dev, "failed to request irq\n");
3171 return -ENOENT;
3172 }
3173
3174 /* Get IRAM pool from device tree or platform data */
3175 pool = of_get_named_gen_pool(np, "iram", 0);
3176 if (!pool && pdata)
3177 pool = dev_get_gen_pool(pdata->iram_dev);
3178 if (!pool) {
3179 dev_err(&pdev->dev, "iram pool not available\n");
3180 return -ENOMEM;
3181 }
3182 dev->iram_pool = pool;
3183
3184 ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
3185 if (ret)
3186 return ret;
3187
3188 mutex_init(&dev->dev_mutex);
3189 mutex_init(&dev->coda_mutex);
3190
3191 pdev_id = of_id ? of_id->data : platform_get_device_id(pdev);
3192
3193 if (of_id) {
3194 dev->devtype = of_id->data;
3195 } else if (pdev_id) {
3196 dev->devtype = &coda_devdata[pdev_id->driver_data];
3197 } else {
3198 v4l2_device_unregister(&dev->v4l2_dev);
3199 return -EINVAL;
3200 }
3201
3202 /* allocate auxiliary per-device buffers for the BIT processor */
3203 switch (dev->devtype->product) {
3204 case CODA_DX6:
3205 ret = coda_alloc_aux_buf(dev, &dev->workbuf,
3206 CODADX6_WORK_BUF_SIZE);
3207 if (ret < 0) {
3208 dev_err(&pdev->dev, "failed to allocate work buffer\n");
3209 v4l2_device_unregister(&dev->v4l2_dev);
3210 return ret;
3211 }
3212 break;
3213 case CODA_7541:
3214 dev->tempbuf.size = CODA7_TEMP_BUF_SIZE;
3215 break;
3216 }
3217 if (dev->tempbuf.size) {
3218 ret = coda_alloc_aux_buf(dev, &dev->tempbuf,
3219 dev->tempbuf.size);
3220 if (ret < 0) {
3221 dev_err(&pdev->dev, "failed to allocate temp buffer\n");
3222 v4l2_device_unregister(&dev->v4l2_dev);
3223 return ret;
3224 }
3225 }
3226
3227 switch (dev->devtype->product) {
3228 case CODA_DX6:
3229 dev->iram_size = CODADX6_IRAM_SIZE;
3230 break;
3231 case CODA_7541:
3232 dev->iram_size = CODA7_IRAM_SIZE;
3233 break;
3234 }
3235 dev->iram_vaddr = gen_pool_alloc(dev->iram_pool, dev->iram_size);
3236 if (!dev->iram_vaddr) {
3237 dev_err(&pdev->dev, "unable to alloc iram\n");
3238 return -ENOMEM;
3239 }
3240 dev->iram_paddr = gen_pool_virt_to_phys(dev->iram_pool,
3241 dev->iram_vaddr);
3242
3243 platform_set_drvdata(pdev, dev);
3244
3245 return coda_firmware_request(dev);
3246 }
3247
3248 static int coda_remove(struct platform_device *pdev)
3249 {
3250 struct coda_dev *dev = platform_get_drvdata(pdev);
3251
3252 video_unregister_device(&dev->vfd);
3253 if (dev->m2m_dev)
3254 v4l2_m2m_release(dev->m2m_dev);
3255 if (dev->alloc_ctx)
3256 vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
3257 v4l2_device_unregister(&dev->v4l2_dev);
3258 if (dev->iram_vaddr)
3259 gen_pool_free(dev->iram_pool, dev->iram_vaddr, dev->iram_size);
3260 coda_free_aux_buf(dev, &dev->codebuf);
3261 coda_free_aux_buf(dev, &dev->tempbuf);
3262 coda_free_aux_buf(dev, &dev->workbuf);
3263 return 0;
3264 }
3265
3266 static struct platform_driver coda_driver = {
3267 .probe = coda_probe,
3268 .remove = coda_remove,
3269 .driver = {
3270 .name = CODA_NAME,
3271 .owner = THIS_MODULE,
3272 .of_match_table = of_match_ptr(coda_dt_ids),
3273 },
3274 .id_table = coda_platform_ids,
3275 };
3276
3277 module_platform_driver(coda_driver);
3278
3279 MODULE_LICENSE("GPL");
3280 MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
3281 MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver");
Linux with added FPC-III support