1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Coda multi-standard codec IP - BIT processor functions
4 *
5 * Copyright (C) 2012 Vista Silicon S.L.
6 * Javier Martin, <javier.martin@vista-silicon.com>
7 * Xavier Duret
8 * Copyright (C) 2012-2014 Philipp Zabel, Pengutronix
9 */
10
11 #include <linux/clk.h>
12 #include <linux/irqreturn.h>
13 #include <linux/kernel.h>
14 #include <linux/log2.h>
15 #include <linux/platform_device.h>
16 #include <linux/reset.h>
17 #include <linux/slab.h>
18 #include <linux/videodev2.h>
19
20 #include <media/v4l2-common.h>
21 #include <media/v4l2-ctrls.h>
22 #include <media/v4l2-fh.h>
23 #include <media/v4l2-mem2mem.h>
24 #include <media/videobuf2-v4l2.h>
25 #include <media/videobuf2-dma-contig.h>
26 #include <media/videobuf2-vmalloc.h>
27
28 #include "coda.h"
29 #include "imx-vdoa.h"
30 #define CREATE_TRACE_POINTS
31 #include "trace.h"
32
33 #define CODA_PARA_BUF_SIZE (10 * 1024)
34 #define CODA7_PS_BUF_SIZE 0x28000
35 #define CODA9_PS_SAVE_SIZE (512 * 1024)
36
37 #define CODA_DEFAULT_GAMMA 4096
38 #define CODA9_DEFAULT_GAMMA 24576 /* 0.75 * 32768 */
39
40 static void coda_free_bitstream_buffer(struct coda_ctx *ctx);
41
coda_is_initialized(struct coda_dev * dev)42 static inline int coda_is_initialized(struct coda_dev *dev)
43 {
44 return coda_read(dev, CODA_REG_BIT_CUR_PC) != 0;
45 }
46
coda_isbusy(struct coda_dev * dev)47 static inline unsigned long coda_isbusy(struct coda_dev *dev)
48 {
49 return coda_read(dev, CODA_REG_BIT_BUSY);
50 }
51
coda_wait_timeout(struct coda_dev * dev)52 static int coda_wait_timeout(struct coda_dev *dev)
53 {
54 unsigned long timeout = jiffies + msecs_to_jiffies(1000);
55
56 while (coda_isbusy(dev)) {
57 if (time_after(jiffies, timeout))
58 return -ETIMEDOUT;
59 }
60 return 0;
61 }
62
coda_command_async(struct coda_ctx * ctx,int cmd)63 static void coda_command_async(struct coda_ctx *ctx, int cmd)
64 {
65 struct coda_dev *dev = ctx->dev;
66
67 if (dev->devtype->product == CODA_HX4 ||
68 dev->devtype->product == CODA_7541 ||
69 dev->devtype->product == CODA_960) {
70 /* Restore context related registers to CODA */
71 coda_write(dev, ctx->bit_stream_param,
72 CODA_REG_BIT_BIT_STREAM_PARAM);
73 coda_write(dev, ctx->frm_dis_flg,
74 CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
75 coda_write(dev, ctx->frame_mem_ctrl,
76 CODA_REG_BIT_FRAME_MEM_CTRL);
77 coda_write(dev, ctx->workbuf.paddr, CODA_REG_BIT_WORK_BUF_ADDR);
78 }
79
80 if (dev->devtype->product == CODA_960) {
81 coda_write(dev, 1, CODA9_GDI_WPROT_ERR_CLR);
82 coda_write(dev, 0, CODA9_GDI_WPROT_RGN_EN);
83 }
84
85 coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
86
87 coda_write(dev, ctx->idx, CODA_REG_BIT_RUN_INDEX);
88 coda_write(dev, ctx->params.codec_mode, CODA_REG_BIT_RUN_COD_STD);
89 coda_write(dev, ctx->params.codec_mode_aux, CODA7_REG_BIT_RUN_AUX_STD);
90
91 trace_coda_bit_run(ctx, cmd);
92
93 coda_write(dev, cmd, CODA_REG_BIT_RUN_COMMAND);
94 }
95
coda_command_sync(struct coda_ctx * ctx,int cmd)96 static int coda_command_sync(struct coda_ctx *ctx, int cmd)
97 {
98 struct coda_dev *dev = ctx->dev;
99 int ret;
100
101 lockdep_assert_held(&dev->coda_mutex);
102
103 coda_command_async(ctx, cmd);
104 ret = coda_wait_timeout(dev);
105 trace_coda_bit_done(ctx);
106
107 return ret;
108 }
109
coda_hw_reset(struct coda_ctx * ctx)110 int coda_hw_reset(struct coda_ctx *ctx)
111 {
112 struct coda_dev *dev = ctx->dev;
113 unsigned long timeout;
114 unsigned int idx;
115 int ret;
116
117 lockdep_assert_held(&dev->coda_mutex);
118
119 if (!dev->rstc)
120 return -ENOENT;
121
122 idx = coda_read(dev, CODA_REG_BIT_RUN_INDEX);
123
124 if (dev->devtype->product == CODA_960) {
125 timeout = jiffies + msecs_to_jiffies(100);
126 coda_write(dev, 0x11, CODA9_GDI_BUS_CTRL);
127 while (coda_read(dev, CODA9_GDI_BUS_STATUS) != 0x77) {
128 if (time_after(jiffies, timeout))
129 return -ETIME;
130 cpu_relax();
131 }
132 }
133
134 ret = reset_control_reset(dev->rstc);
135 if (ret < 0)
136 return ret;
137
138 if (dev->devtype->product == CODA_960)
139 coda_write(dev, 0x00, CODA9_GDI_BUS_CTRL);
140 coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
141 coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
142 ret = coda_wait_timeout(dev);
143 coda_write(dev, idx, CODA_REG_BIT_RUN_INDEX);
144
145 return ret;
146 }
147
coda_kfifo_sync_from_device(struct coda_ctx * ctx)148 static void coda_kfifo_sync_from_device(struct coda_ctx *ctx)
149 {
150 struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
151 struct coda_dev *dev = ctx->dev;
152 u32 rd_ptr;
153
154 rd_ptr = coda_read(dev, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
155 kfifo->out = (kfifo->in & ~kfifo->mask) |
156 (rd_ptr - ctx->bitstream.paddr);
157 if (kfifo->out > kfifo->in)
158 kfifo->out -= kfifo->mask + 1;
159 }
160
coda_kfifo_sync_to_device_full(struct coda_ctx * ctx)161 static void coda_kfifo_sync_to_device_full(struct coda_ctx *ctx)
162 {
163 struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
164 struct coda_dev *dev = ctx->dev;
165 u32 rd_ptr, wr_ptr;
166
167 rd_ptr = ctx->bitstream.paddr + (kfifo->out & kfifo->mask);
168 coda_write(dev, rd_ptr, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
169 wr_ptr = ctx->bitstream.paddr + (kfifo->in & kfifo->mask);
170 coda_write(dev, wr_ptr, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
171 }
172
coda_kfifo_sync_to_device_write(struct coda_ctx * ctx)173 static void coda_kfifo_sync_to_device_write(struct coda_ctx *ctx)
174 {
175 struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
176 struct coda_dev *dev = ctx->dev;
177 u32 wr_ptr;
178
179 wr_ptr = ctx->bitstream.paddr + (kfifo->in & kfifo->mask);
180 coda_write(dev, wr_ptr, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
181 }
182
coda_h264_bitstream_pad(struct coda_ctx * ctx,u32 size)183 static int coda_h264_bitstream_pad(struct coda_ctx *ctx, u32 size)
184 {
185 unsigned char *buf;
186 u32 n;
187
188 if (size < 6)
189 size = 6;
190
191 buf = kmalloc(size, GFP_KERNEL);
192 if (!buf)
193 return -ENOMEM;
194
195 coda_h264_filler_nal(size, buf);
196 n = kfifo_in(&ctx->bitstream_fifo, buf, size);
197 kfree(buf);
198
199 return (n < size) ? -ENOSPC : 0;
200 }
201
coda_bitstream_flush(struct coda_ctx * ctx)202 int coda_bitstream_flush(struct coda_ctx *ctx)
203 {
204 int ret;
205
206 if (ctx->inst_type != CODA_INST_DECODER || !ctx->use_bit)
207 return 0;
208
209 ret = coda_command_sync(ctx, CODA_COMMAND_DEC_BUF_FLUSH);
210 if (ret < 0) {
211 v4l2_err(&ctx->dev->v4l2_dev, "failed to flush bitstream\n");
212 return ret;
213 }
214
215 kfifo_init(&ctx->bitstream_fifo, ctx->bitstream.vaddr,
216 ctx->bitstream.size);
217 coda_kfifo_sync_to_device_full(ctx);
218
219 return 0;
220 }
221
coda_bitstream_queue(struct coda_ctx * ctx,const u8 * buf,u32 size)222 static int coda_bitstream_queue(struct coda_ctx *ctx, const u8 *buf, u32 size)
223 {
224 u32 n = kfifo_in(&ctx->bitstream_fifo, buf, size);
225
226 return (n < size) ? -ENOSPC : 0;
227 }
228
coda_buffer_parse_headers(struct coda_ctx * ctx,struct vb2_v4l2_buffer * src_buf,u32 payload)229 static u32 coda_buffer_parse_headers(struct coda_ctx *ctx,
230 struct vb2_v4l2_buffer *src_buf,
231 u32 payload)
232 {
233 u8 *vaddr = vb2_plane_vaddr(&src_buf->vb2_buf, 0);
234 u32 size = 0;
235
236 switch (ctx->codec->src_fourcc) {
237 case V4L2_PIX_FMT_MPEG2:
238 size = coda_mpeg2_parse_headers(ctx, vaddr, payload);
239 break;
240 case V4L2_PIX_FMT_MPEG4:
241 size = coda_mpeg4_parse_headers(ctx, vaddr, payload);
242 break;
243 default:
244 break;
245 }
246
247 return size;
248 }
249
coda_bitstream_try_queue(struct coda_ctx * ctx,struct vb2_v4l2_buffer * src_buf)250 static bool coda_bitstream_try_queue(struct coda_ctx *ctx,
251 struct vb2_v4l2_buffer *src_buf)
252 {
253 unsigned long payload = vb2_get_plane_payload(&src_buf->vb2_buf, 0);
254 u8 *vaddr = vb2_plane_vaddr(&src_buf->vb2_buf, 0);
255 int ret;
256 int i;
257
258 if (coda_get_bitstream_payload(ctx) + payload + 512 >=
259 ctx->bitstream.size)
260 return false;
261
262 if (!vaddr) {
263 v4l2_err(&ctx->dev->v4l2_dev, "trying to queue empty buffer\n");
264 return true;
265 }
266
267 if (ctx->qsequence == 0 && payload < 512) {
268 /*
269 * Add padding after the first buffer, if it is too small to be
270 * fetched by the CODA, by repeating the headers. Without
271 * repeated headers, or the first frame already queued, decoder
272 * sequence initialization fails with error code 0x2000 on i.MX6
273 * or error code 0x1 on i.MX51.
274 */
275 u32 header_size = coda_buffer_parse_headers(ctx, src_buf,
276 payload);
277
278 if (header_size) {
279 coda_dbg(1, ctx, "pad with %u-byte header\n",
280 header_size);
281 for (i = payload; i < 512; i += header_size) {
282 ret = coda_bitstream_queue(ctx, vaddr,
283 header_size);
284 if (ret < 0) {
285 v4l2_err(&ctx->dev->v4l2_dev,
286 "bitstream buffer overflow\n");
287 return false;
288 }
289 if (ctx->dev->devtype->product == CODA_960)
290 break;
291 }
292 } else {
293 coda_dbg(1, ctx,
294 "could not parse header, sequence initialization might fail\n");
295 }
296 }
297
298 /* Add padding before the first buffer, if it is too small */
299 if (ctx->qsequence == 0 && payload < 512 &&
300 ctx->codec->src_fourcc == V4L2_PIX_FMT_H264)
301 coda_h264_bitstream_pad(ctx, 512 - payload);
302
303 ret = coda_bitstream_queue(ctx, vaddr, payload);
304 if (ret < 0) {
305 v4l2_err(&ctx->dev->v4l2_dev, "bitstream buffer overflow\n");
306 return false;
307 }
308
309 src_buf->sequence = ctx->qsequence++;
310
311 /* Sync read pointer to device */
312 if (ctx == v4l2_m2m_get_curr_priv(ctx->dev->m2m_dev))
313 coda_kfifo_sync_to_device_write(ctx);
314
315 /* Set the stream-end flag after the last buffer is queued */
316 if (src_buf->flags & V4L2_BUF_FLAG_LAST)
317 coda_bit_stream_end_flag(ctx);
318 ctx->hold = false;
319
320 return true;
321 }
322
coda_fill_bitstream(struct coda_ctx * ctx,struct list_head * buffer_list)323 void coda_fill_bitstream(struct coda_ctx *ctx, struct list_head *buffer_list)
324 {
325 struct vb2_v4l2_buffer *src_buf;
326 struct coda_buffer_meta *meta;
327 u32 start;
328
329 if (ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG)
330 return;
331
332 while (v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) > 0) {
333 /*
334 * Only queue two JPEGs into the bitstream buffer to keep
335 * latency low. We need at least one complete buffer and the
336 * header of another buffer (for prescan) in the bitstream.
337 */
338 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG &&
339 ctx->num_metas > 1)
340 break;
341
342 if (ctx->num_internal_frames &&
343 ctx->num_metas >= ctx->num_internal_frames) {
344 meta = list_first_entry(&ctx->buffer_meta_list,
345 struct coda_buffer_meta, list);
346
347 /*
348 * If we managed to fill in at least a full reorder
349 * window of buffers (num_internal_frames is a
350 * conservative estimate for this) and the bitstream
351 * prefetcher has at least 2 256 bytes periods beyond
352 * the first buffer to fetch, we can safely stop queuing
353 * in order to limit the decoder drain latency.
354 */
355 if (coda_bitstream_can_fetch_past(ctx, meta->end))
356 break;
357 }
358
359 src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
360
361 /* Drop frames that do not start/end with a SOI/EOI markers */
362 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG &&
363 !coda_jpeg_check_buffer(ctx, &src_buf->vb2_buf)) {
364 v4l2_err(&ctx->dev->v4l2_dev,
365 "dropping invalid JPEG frame %d\n",
366 ctx->qsequence);
367 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
368 if (buffer_list) {
369 struct v4l2_m2m_buffer *m2m_buf;
370
371 m2m_buf = container_of(src_buf,
372 struct v4l2_m2m_buffer,
373 vb);
374 list_add_tail(&m2m_buf->list, buffer_list);
375 } else {
376 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
377 }
378 continue;
379 }
380
381 /* Dump empty buffers */
382 if (!vb2_get_plane_payload(&src_buf->vb2_buf, 0)) {
383 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
384 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
385 continue;
386 }
387
388 /* Buffer start position */
389 start = ctx->bitstream_fifo.kfifo.in;
390
391 if (coda_bitstream_try_queue(ctx, src_buf)) {
392 /*
393 * Source buffer is queued in the bitstream ringbuffer;
394 * queue the timestamp and mark source buffer as done
395 */
396 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
397
398 meta = kmalloc(sizeof(*meta), GFP_KERNEL);
399 if (meta) {
400 meta->sequence = src_buf->sequence;
401 meta->timecode = src_buf->timecode;
402 meta->timestamp = src_buf->vb2_buf.timestamp;
403 meta->start = start;
404 meta->end = ctx->bitstream_fifo.kfifo.in;
405 meta->last = src_buf->flags & V4L2_BUF_FLAG_LAST;
406 if (meta->last)
407 coda_dbg(1, ctx, "marking last meta");
408 spin_lock(&ctx->buffer_meta_lock);
409 list_add_tail(&meta->list,
410 &ctx->buffer_meta_list);
411 ctx->num_metas++;
412 spin_unlock(&ctx->buffer_meta_lock);
413
414 trace_coda_bit_queue(ctx, src_buf, meta);
415 }
416
417 if (buffer_list) {
418 struct v4l2_m2m_buffer *m2m_buf;
419
420 m2m_buf = container_of(src_buf,
421 struct v4l2_m2m_buffer,
422 vb);
423 list_add_tail(&m2m_buf->list, buffer_list);
424 } else {
425 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
426 }
427 } else {
428 break;
429 }
430 }
431 }
432
coda_bit_stream_end_flag(struct coda_ctx * ctx)433 void coda_bit_stream_end_flag(struct coda_ctx *ctx)
434 {
435 struct coda_dev *dev = ctx->dev;
436
437 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
438
439 /* If this context is currently running, update the hardware flag */
440 if ((dev->devtype->product == CODA_960) &&
441 coda_isbusy(dev) &&
442 (ctx->idx == coda_read(dev, CODA_REG_BIT_RUN_INDEX))) {
443 coda_write(dev, ctx->bit_stream_param,
444 CODA_REG_BIT_BIT_STREAM_PARAM);
445 }
446 }
447
coda_parabuf_write(struct coda_ctx * ctx,int index,u32 value)448 static void coda_parabuf_write(struct coda_ctx *ctx, int index, u32 value)
449 {
450 struct coda_dev *dev = ctx->dev;
451 u32 *p = ctx->parabuf.vaddr;
452
453 if (dev->devtype->product == CODA_DX6)
454 p[index] = value;
455 else
456 p[index ^ 1] = value;
457 }
458
coda_alloc_context_buf(struct coda_ctx * ctx,struct coda_aux_buf * buf,size_t size,const char * name)459 static inline int coda_alloc_context_buf(struct coda_ctx *ctx,
460 struct coda_aux_buf *buf, size_t size,
461 const char *name)
462 {
463 return coda_alloc_aux_buf(ctx->dev, buf, size, name, ctx->debugfs_entry);
464 }
465
466
coda_free_framebuffers(struct coda_ctx * ctx)467 static void coda_free_framebuffers(struct coda_ctx *ctx)
468 {
469 int i;
470
471 for (i = 0; i < CODA_MAX_FRAMEBUFFERS; i++)
472 coda_free_aux_buf(ctx->dev, &ctx->internal_frames[i].buf);
473 }
474
coda_alloc_framebuffers(struct coda_ctx * ctx,struct coda_q_data * q_data,u32 fourcc)475 static int coda_alloc_framebuffers(struct coda_ctx *ctx,
476 struct coda_q_data *q_data, u32 fourcc)
477 {
478 struct coda_dev *dev = ctx->dev;
479 unsigned int ysize, ycbcr_size;
480 int ret;
481 int i;
482
483 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 ||
484 ctx->codec->dst_fourcc == V4L2_PIX_FMT_H264 ||
485 ctx->codec->src_fourcc == V4L2_PIX_FMT_MPEG4 ||
486 ctx->codec->dst_fourcc == V4L2_PIX_FMT_MPEG4)
487 ysize = round_up(q_data->rect.width, 16) *
488 round_up(q_data->rect.height, 16);
489 else
490 ysize = round_up(q_data->rect.width, 8) * q_data->rect.height;
491
492 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP)
493 ycbcr_size = round_up(ysize, 4096) + ysize / 2;
494 else
495 ycbcr_size = ysize + ysize / 2;
496
497 /* Allocate frame buffers */
498 for (i = 0; i < ctx->num_internal_frames; i++) {
499 size_t size = ycbcr_size;
500 char *name;
501
502 /* Add space for mvcol buffers */
503 if (dev->devtype->product != CODA_DX6 &&
504 (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 ||
505 (ctx->codec->src_fourcc == V4L2_PIX_FMT_MPEG4 && i == 0)))
506 size += ysize / 4;
507 name = kasprintf(GFP_KERNEL, "fb%d", i);
508 if (!name) {
509 coda_free_framebuffers(ctx);
510 return -ENOMEM;
511 }
512 ret = coda_alloc_context_buf(ctx, &ctx->internal_frames[i].buf,
513 size, name);
514 kfree(name);
515 if (ret < 0) {
516 coda_free_framebuffers(ctx);
517 return ret;
518 }
519 }
520
521 /* Register frame buffers in the parameter buffer */
522 for (i = 0; i < ctx->num_internal_frames; i++) {
523 u32 y, cb, cr, mvcol;
524
525 /* Start addresses of Y, Cb, Cr planes */
526 y = ctx->internal_frames[i].buf.paddr;
527 cb = y + ysize;
528 cr = y + ysize + ysize/4;
529 mvcol = y + ysize + ysize/4 + ysize/4;
530 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP) {
531 cb = round_up(cb, 4096);
532 mvcol = cb + ysize/2;
533 cr = 0;
534 /* Packed 20-bit MSB of base addresses */
535 /* YYYYYCCC, CCyyyyyc, cccc.... */
536 y = (y & 0xfffff000) | cb >> 20;
537 cb = (cb & 0x000ff000) << 12;
538 }
539 coda_parabuf_write(ctx, i * 3 + 0, y);
540 coda_parabuf_write(ctx, i * 3 + 1, cb);
541 coda_parabuf_write(ctx, i * 3 + 2, cr);
542
543 if (dev->devtype->product == CODA_DX6)
544 continue;
545
546 /* mvcol buffer for h.264 and mpeg4 */
547 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264)
548 coda_parabuf_write(ctx, 96 + i, mvcol);
549 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_MPEG4 && i == 0)
550 coda_parabuf_write(ctx, 97, mvcol);
551 }
552
553 return 0;
554 }
555
coda_free_context_buffers(struct coda_ctx * ctx)556 static void coda_free_context_buffers(struct coda_ctx *ctx)
557 {
558 struct coda_dev *dev = ctx->dev;
559
560 coda_free_aux_buf(dev, &ctx->slicebuf);
561 coda_free_aux_buf(dev, &ctx->psbuf);
562 if (dev->devtype->product != CODA_DX6)
563 coda_free_aux_buf(dev, &ctx->workbuf);
564 coda_free_aux_buf(dev, &ctx->parabuf);
565 }
566
coda_alloc_context_buffers(struct coda_ctx * ctx,struct coda_q_data * q_data)567 static int coda_alloc_context_buffers(struct coda_ctx *ctx,
568 struct coda_q_data *q_data)
569 {
570 struct coda_dev *dev = ctx->dev;
571 size_t size;
572 int ret;
573
574 if (!ctx->parabuf.vaddr) {
575 ret = coda_alloc_context_buf(ctx, &ctx->parabuf,
576 CODA_PARA_BUF_SIZE, "parabuf");
577 if (ret < 0)
578 return ret;
579 }
580
581 if (dev->devtype->product == CODA_DX6)
582 return 0;
583
584 if (!ctx->slicebuf.vaddr && q_data->fourcc == V4L2_PIX_FMT_H264) {
585 /* worst case slice size */
586 size = (DIV_ROUND_UP(q_data->rect.width, 16) *
587 DIV_ROUND_UP(q_data->rect.height, 16)) * 3200 / 8 + 512;
588 ret = coda_alloc_context_buf(ctx, &ctx->slicebuf, size,
589 "slicebuf");
590 if (ret < 0)
591 goto err;
592 }
593
594 if (!ctx->psbuf.vaddr && (dev->devtype->product == CODA_HX4 ||
595 dev->devtype->product == CODA_7541)) {
596 ret = coda_alloc_context_buf(ctx, &ctx->psbuf,
597 CODA7_PS_BUF_SIZE, "psbuf");
598 if (ret < 0)
599 goto err;
600 }
601
602 if (!ctx->workbuf.vaddr) {
603 size = dev->devtype->workbuf_size;
604 if (dev->devtype->product == CODA_960 &&
605 q_data->fourcc == V4L2_PIX_FMT_H264)
606 size += CODA9_PS_SAVE_SIZE;
607 ret = coda_alloc_context_buf(ctx, &ctx->workbuf, size,
608 "workbuf");
609 if (ret < 0)
610 goto err;
611 }
612
613 return 0;
614
615 err:
616 coda_free_context_buffers(ctx);
617 return ret;
618 }
619
coda_encode_header(struct coda_ctx * ctx,struct vb2_v4l2_buffer * buf,int header_code,u8 * header,int * size)620 static int coda_encode_header(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
621 int header_code, u8 *header, int *size)
622 {
623 struct vb2_buffer *vb = &buf->vb2_buf;
624 struct coda_dev *dev = ctx->dev;
625 struct coda_q_data *q_data_src;
626 struct v4l2_rect *r;
627 size_t bufsize;
628 int ret;
629 int i;
630
631 if (dev->devtype->product == CODA_960)
632 memset(vb2_plane_vaddr(vb, 0), 0, 64);
633
634 coda_write(dev, vb2_dma_contig_plane_dma_addr(vb, 0),
635 CODA_CMD_ENC_HEADER_BB_START);
636 bufsize = vb2_plane_size(vb, 0);
637 if (dev->devtype->product == CODA_960)
638 bufsize /= 1024;
639 coda_write(dev, bufsize, CODA_CMD_ENC_HEADER_BB_SIZE);
640 if (dev->devtype->product == CODA_960 &&
641 ctx->codec->dst_fourcc == V4L2_PIX_FMT_H264 &&
642 header_code == CODA_HEADER_H264_SPS) {
643 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
644 r = &q_data_src->rect;
645
646 if (r->width % 16 || r->height % 16) {
647 u32 crop_right = round_up(r->width, 16) - r->width;
648 u32 crop_bottom = round_up(r->height, 16) - r->height;
649
650 coda_write(dev, crop_right,
651 CODA9_CMD_ENC_HEADER_FRAME_CROP_H);
652 coda_write(dev, crop_bottom,
653 CODA9_CMD_ENC_HEADER_FRAME_CROP_V);
654 header_code |= CODA9_HEADER_FRAME_CROP;
655 }
656 }
657 coda_write(dev, header_code, CODA_CMD_ENC_HEADER_CODE);
658 ret = coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER);
659 if (ret < 0) {
660 v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n");
661 return ret;
662 }
663
664 if (dev->devtype->product == CODA_960) {
665 for (i = 63; i > 0; i--)
666 if (((char *)vb2_plane_vaddr(vb, 0))[i] != 0)
667 break;
668 *size = i + 1;
669 } else {
670 *size = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->reg_idx)) -
671 coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
672 }
673 memcpy(header, vb2_plane_vaddr(vb, 0), *size);
674
675 return 0;
676 }
677
coda_slice_mode(struct coda_ctx * ctx)678 static u32 coda_slice_mode(struct coda_ctx *ctx)
679 {
680 int size, unit;
681
682 switch (ctx->params.slice_mode) {
683 case V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE:
684 default:
685 return 0;
686 case V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_MB:
687 size = ctx->params.slice_max_mb;
688 unit = 1;
689 break;
690 case V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_BYTES:
691 size = ctx->params.slice_max_bits;
692 unit = 0;
693 break;
694 }
695
696 return ((size & CODA_SLICING_SIZE_MASK) << CODA_SLICING_SIZE_OFFSET) |
697 ((unit & CODA_SLICING_UNIT_MASK) << CODA_SLICING_UNIT_OFFSET) |
698 ((1 & CODA_SLICING_MODE_MASK) << CODA_SLICING_MODE_OFFSET);
699 }
700
coda_enc_param_change(struct coda_ctx * ctx)701 static int coda_enc_param_change(struct coda_ctx *ctx)
702 {
703 struct coda_dev *dev = ctx->dev;
704 u32 change_enable = 0;
705 u32 success;
706 int ret;
707
708 if (ctx->params.gop_size_changed) {
709 change_enable |= CODA_PARAM_CHANGE_RC_GOP;
710 coda_write(dev, ctx->params.gop_size,
711 CODA_CMD_ENC_PARAM_RC_GOP);
712 ctx->gopcounter = ctx->params.gop_size - 1;
713 ctx->params.gop_size_changed = false;
714 }
715 if (ctx->params.h264_intra_qp_changed) {
716 coda_dbg(1, ctx, "parameter change: intra Qp %u\n",
717 ctx->params.h264_intra_qp);
718
719 if (ctx->params.bitrate) {
720 change_enable |= CODA_PARAM_CHANGE_RC_INTRA_QP;
721 coda_write(dev, ctx->params.h264_intra_qp,
722 CODA_CMD_ENC_PARAM_RC_INTRA_QP);
723 }
724 ctx->params.h264_intra_qp_changed = false;
725 }
726 if (ctx->params.bitrate_changed) {
727 coda_dbg(1, ctx, "parameter change: bitrate %u kbit/s\n",
728 ctx->params.bitrate);
729 change_enable |= CODA_PARAM_CHANGE_RC_BITRATE;
730 coda_write(dev, ctx->params.bitrate,
731 CODA_CMD_ENC_PARAM_RC_BITRATE);
732 ctx->params.bitrate_changed = false;
733 }
734 if (ctx->params.framerate_changed) {
735 coda_dbg(1, ctx, "parameter change: frame rate %u/%u Hz\n",
736 ctx->params.framerate & 0xffff,
737 (ctx->params.framerate >> 16) + 1);
738 change_enable |= CODA_PARAM_CHANGE_RC_FRAME_RATE;
739 coda_write(dev, ctx->params.framerate,
740 CODA_CMD_ENC_PARAM_RC_FRAME_RATE);
741 ctx->params.framerate_changed = false;
742 }
743 if (ctx->params.intra_refresh_changed) {
744 coda_dbg(1, ctx, "parameter change: intra refresh MBs %u\n",
745 ctx->params.intra_refresh);
746 change_enable |= CODA_PARAM_CHANGE_INTRA_MB_NUM;
747 coda_write(dev, ctx->params.intra_refresh,
748 CODA_CMD_ENC_PARAM_INTRA_MB_NUM);
749 ctx->params.intra_refresh_changed = false;
750 }
751 if (ctx->params.slice_mode_changed) {
752 change_enable |= CODA_PARAM_CHANGE_SLICE_MODE;
753 coda_write(dev, coda_slice_mode(ctx),
754 CODA_CMD_ENC_PARAM_SLICE_MODE);
755 ctx->params.slice_mode_changed = false;
756 }
757
758 if (!change_enable)
759 return 0;
760
761 coda_write(dev, change_enable, CODA_CMD_ENC_PARAM_CHANGE_ENABLE);
762
763 ret = coda_command_sync(ctx, CODA_COMMAND_RC_CHANGE_PARAMETER);
764 if (ret < 0)
765 return ret;
766
767 success = coda_read(dev, CODA_RET_ENC_PARAM_CHANGE_SUCCESS);
768 if (success != 1)
769 coda_dbg(1, ctx, "parameter change failed: %u\n", success);
770
771 return 0;
772 }
773
coda_iram_alloc(struct coda_iram_info * iram,size_t size)774 static phys_addr_t coda_iram_alloc(struct coda_iram_info *iram, size_t size)
775 {
776 phys_addr_t ret;
777
778 size = round_up(size, 1024);
779 if (size > iram->remaining)
780 return 0;
781 iram->remaining -= size;
782
783 ret = iram->next_paddr;
784 iram->next_paddr += size;
785
786 return ret;
787 }
788
coda_setup_iram(struct coda_ctx * ctx)789 static void coda_setup_iram(struct coda_ctx *ctx)
790 {
791 struct coda_iram_info *iram_info = &ctx->iram_info;
792 struct coda_dev *dev = ctx->dev;
793 int w64, w128;
794 int mb_width;
795 int dbk_bits;
796 int bit_bits;
797 int ip_bits;
798 int me_bits;
799
800 memset(iram_info, 0, sizeof(*iram_info));
801 iram_info->next_paddr = dev->iram.paddr;
802 iram_info->remaining = dev->iram.size;
803
804 if (!dev->iram.vaddr)
805 return;
806
807 switch (dev->devtype->product) {
808 case CODA_HX4:
809 dbk_bits = CODA7_USE_HOST_DBK_ENABLE;
810 bit_bits = CODA7_USE_HOST_BIT_ENABLE;
811 ip_bits = CODA7_USE_HOST_IP_ENABLE;
812 me_bits = CODA7_USE_HOST_ME_ENABLE;
813 break;
814 case CODA_7541:
815 dbk_bits = CODA7_USE_HOST_DBK_ENABLE | CODA7_USE_DBK_ENABLE;
816 bit_bits = CODA7_USE_HOST_BIT_ENABLE | CODA7_USE_BIT_ENABLE;
817 ip_bits = CODA7_USE_HOST_IP_ENABLE | CODA7_USE_IP_ENABLE;
818 me_bits = CODA7_USE_HOST_ME_ENABLE | CODA7_USE_ME_ENABLE;
819 break;
820 case CODA_960:
821 dbk_bits = CODA9_USE_HOST_DBK_ENABLE | CODA9_USE_DBK_ENABLE;
822 bit_bits = CODA9_USE_HOST_BIT_ENABLE | CODA7_USE_BIT_ENABLE;
823 ip_bits = CODA9_USE_HOST_IP_ENABLE | CODA7_USE_IP_ENABLE;
824 me_bits = 0;
825 break;
826 default: /* CODA_DX6 */
827 return;
828 }
829
830 if (ctx->inst_type == CODA_INST_ENCODER) {
831 struct coda_q_data *q_data_src;
832
833 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
834 mb_width = DIV_ROUND_UP(q_data_src->rect.width, 16);
835 w128 = mb_width * 128;
836 w64 = mb_width * 64;
837
838 /* Prioritize in case IRAM is too small for everything */
839 if (dev->devtype->product == CODA_HX4 ||
840 dev->devtype->product == CODA_7541) {
841 iram_info->search_ram_size = round_up(mb_width * 16 *
842 36 + 2048, 1024);
843 iram_info->search_ram_paddr = coda_iram_alloc(iram_info,
844 iram_info->search_ram_size);
845 if (!iram_info->search_ram_paddr) {
846 pr_err("IRAM is smaller than the search ram size\n");
847 goto out;
848 }
849 iram_info->axi_sram_use |= me_bits;
850 }
851
852 /* Only H.264BP and H.263P3 are considered */
853 iram_info->buf_dbk_y_use = coda_iram_alloc(iram_info, w64);
854 iram_info->buf_dbk_c_use = coda_iram_alloc(iram_info, w64);
855 if (!iram_info->buf_dbk_c_use)
856 goto out;
857 iram_info->axi_sram_use |= dbk_bits;
858
859 iram_info->buf_bit_use = coda_iram_alloc(iram_info, w128);
860 if (!iram_info->buf_bit_use)
861 goto out;
862 iram_info->axi_sram_use |= bit_bits;
863
864 iram_info->buf_ip_ac_dc_use = coda_iram_alloc(iram_info, w128);
865 if (!iram_info->buf_ip_ac_dc_use)
866 goto out;
867 iram_info->axi_sram_use |= ip_bits;
868
869 /* OVL and BTP disabled for encoder */
870 } else if (ctx->inst_type == CODA_INST_DECODER) {
871 struct coda_q_data *q_data_dst;
872
873 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
874 mb_width = DIV_ROUND_UP(q_data_dst->width, 16);
875 w128 = mb_width * 128;
876
877 iram_info->buf_dbk_y_use = coda_iram_alloc(iram_info, w128);
878 iram_info->buf_dbk_c_use = coda_iram_alloc(iram_info, w128);
879 if (!iram_info->buf_dbk_c_use)
880 goto out;
881 iram_info->axi_sram_use |= dbk_bits;
882
883 iram_info->buf_bit_use = coda_iram_alloc(iram_info, w128);
884 if (!iram_info->buf_bit_use)
885 goto out;
886 iram_info->axi_sram_use |= bit_bits;
887
888 iram_info->buf_ip_ac_dc_use = coda_iram_alloc(iram_info, w128);
889 if (!iram_info->buf_ip_ac_dc_use)
890 goto out;
891 iram_info->axi_sram_use |= ip_bits;
892
893 /* OVL and BTP unused as there is no VC1 support yet */
894 }
895
896 out:
897 if (!(iram_info->axi_sram_use & CODA7_USE_HOST_IP_ENABLE))
898 coda_dbg(1, ctx, "IRAM smaller than needed\n");
899
900 if (dev->devtype->product == CODA_HX4 ||
901 dev->devtype->product == CODA_7541) {
902 /* TODO - Enabling these causes picture errors on CODA7541 */
903 if (ctx->inst_type == CODA_INST_DECODER) {
904 /* fw 1.4.50 */
905 iram_info->axi_sram_use &= ~(CODA7_USE_HOST_IP_ENABLE |
906 CODA7_USE_IP_ENABLE);
907 } else {
908 /* fw 13.4.29 */
909 iram_info->axi_sram_use &= ~(CODA7_USE_HOST_IP_ENABLE |
910 CODA7_USE_HOST_DBK_ENABLE |
911 CODA7_USE_IP_ENABLE |
912 CODA7_USE_DBK_ENABLE);
913 }
914 }
915 }
916
917 static u32 coda_supported_firmwares[] = {
918 CODA_FIRMWARE_VERNUM(CODA_DX6, 2, 2, 5),
919 CODA_FIRMWARE_VERNUM(CODA_HX4, 1, 4, 50),
920 CODA_FIRMWARE_VERNUM(CODA_7541, 1, 4, 50),
921 CODA_FIRMWARE_VERNUM(CODA_960, 2, 1, 5),
922 CODA_FIRMWARE_VERNUM(CODA_960, 2, 1, 9),
923 CODA_FIRMWARE_VERNUM(CODA_960, 2, 3, 10),
924 CODA_FIRMWARE_VERNUM(CODA_960, 3, 1, 1),
925 };
926
coda_firmware_supported(u32 vernum)927 static bool coda_firmware_supported(u32 vernum)
928 {
929 int i;
930
931 for (i = 0; i < ARRAY_SIZE(coda_supported_firmwares); i++)
932 if (vernum == coda_supported_firmwares[i])
933 return true;
934 return false;
935 }
936
coda_check_firmware(struct coda_dev * dev)937 int coda_check_firmware(struct coda_dev *dev)
938 {
939 u16 product, major, minor, release;
940 u32 data;
941 int ret;
942
943 ret = clk_prepare_enable(dev->clk_per);
944 if (ret)
945 goto err_clk_per;
946
947 ret = clk_prepare_enable(dev->clk_ahb);
948 if (ret)
949 goto err_clk_ahb;
950
951 coda_write(dev, 0, CODA_CMD_FIRMWARE_VERNUM);
952 coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
953 coda_write(dev, 0, CODA_REG_BIT_RUN_INDEX);
954 coda_write(dev, 0, CODA_REG_BIT_RUN_COD_STD);
955 coda_write(dev, CODA_COMMAND_FIRMWARE_GET, CODA_REG_BIT_RUN_COMMAND);
956 if (coda_wait_timeout(dev)) {
957 v4l2_err(&dev->v4l2_dev, "firmware get command error\n");
958 ret = -EIO;
959 goto err_run_cmd;
960 }
961
962 if (dev->devtype->product == CODA_960) {
963 data = coda_read(dev, CODA9_CMD_FIRMWARE_CODE_REV);
964 v4l2_info(&dev->v4l2_dev, "Firmware code revision: %d\n",
965 data);
966 }
967
968 /* Check we are compatible with the loaded firmware */
969 data = coda_read(dev, CODA_CMD_FIRMWARE_VERNUM);
970 product = CODA_FIRMWARE_PRODUCT(data);
971 major = CODA_FIRMWARE_MAJOR(data);
972 minor = CODA_FIRMWARE_MINOR(data);
973 release = CODA_FIRMWARE_RELEASE(data);
974
975 clk_disable_unprepare(dev->clk_per);
976 clk_disable_unprepare(dev->clk_ahb);
977
978 if (product != dev->devtype->product) {
979 v4l2_err(&dev->v4l2_dev,
980 "Wrong firmware. Hw: %s, Fw: %s, Version: %u.%u.%u\n",
981 coda_product_name(dev->devtype->product),
982 coda_product_name(product), major, minor, release);
983 return -EINVAL;
984 }
985
986 v4l2_info(&dev->v4l2_dev, "Initialized %s.\n",
987 coda_product_name(product));
988
989 if (coda_firmware_supported(data)) {
990 v4l2_info(&dev->v4l2_dev, "Firmware version: %u.%u.%u\n",
991 major, minor, release);
992 } else {
993 v4l2_warn(&dev->v4l2_dev,
994 "Unsupported firmware version: %u.%u.%u\n",
995 major, minor, release);
996 }
997
998 return 0;
999
1000 err_run_cmd:
1001 clk_disable_unprepare(dev->clk_ahb);
1002 err_clk_ahb:
1003 clk_disable_unprepare(dev->clk_per);
1004 err_clk_per:
1005 return ret;
1006 }
1007
coda9_set_frame_cache(struct coda_ctx * ctx,u32 fourcc)1008 static void coda9_set_frame_cache(struct coda_ctx *ctx, u32 fourcc)
1009 {
1010 u32 cache_size, cache_config;
1011
1012 if (ctx->tiled_map_type == GDI_LINEAR_FRAME_MAP) {
1013 /* Luma 2x0 page, 2x6 cache, chroma 2x0 page, 2x4 cache size */
1014 cache_size = 0x20262024;
1015 cache_config = 2 << CODA9_CACHE_PAGEMERGE_OFFSET;
1016 } else {
1017 /* Luma 0x2 page, 4x4 cache, chroma 0x2 page, 4x3 cache size */
1018 cache_size = 0x02440243;
1019 cache_config = 1 << CODA9_CACHE_PAGEMERGE_OFFSET;
1020 }
1021 coda_write(ctx->dev, cache_size, CODA9_CMD_SET_FRAME_CACHE_SIZE);
1022 if (fourcc == V4L2_PIX_FMT_NV12 || fourcc == V4L2_PIX_FMT_YUYV) {
1023 cache_config |= 32 << CODA9_CACHE_LUMA_BUFFER_SIZE_OFFSET |
1024 16 << CODA9_CACHE_CR_BUFFER_SIZE_OFFSET |
1025 0 << CODA9_CACHE_CB_BUFFER_SIZE_OFFSET;
1026 } else {
1027 cache_config |= 32 << CODA9_CACHE_LUMA_BUFFER_SIZE_OFFSET |
1028 8 << CODA9_CACHE_CR_BUFFER_SIZE_OFFSET |
1029 8 << CODA9_CACHE_CB_BUFFER_SIZE_OFFSET;
1030 }
1031 coda_write(ctx->dev, cache_config, CODA9_CMD_SET_FRAME_CACHE_CONFIG);
1032 }
1033
1034 /*
1035 * Encoder context operations
1036 */
1037
coda_encoder_reqbufs(struct coda_ctx * ctx,struct v4l2_requestbuffers * rb)1038 static int coda_encoder_reqbufs(struct coda_ctx *ctx,
1039 struct v4l2_requestbuffers *rb)
1040 {
1041 struct coda_q_data *q_data_src;
1042 int ret;
1043
1044 if (rb->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1045 return 0;
1046
1047 if (rb->count) {
1048 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1049 ret = coda_alloc_context_buffers(ctx, q_data_src);
1050 if (ret < 0)
1051 return ret;
1052 } else {
1053 coda_free_context_buffers(ctx);
1054 }
1055
1056 return 0;
1057 }
1058
coda_start_encoding(struct coda_ctx * ctx)1059 static int coda_start_encoding(struct coda_ctx *ctx)
1060 {
1061 struct coda_dev *dev = ctx->dev;
1062 struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
1063 struct coda_q_data *q_data_src, *q_data_dst;
1064 u32 bitstream_buf, bitstream_size;
1065 struct vb2_v4l2_buffer *buf;
1066 int gamma, ret, value;
1067 u32 dst_fourcc;
1068 int num_fb;
1069 u32 stride;
1070
1071 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1072 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1073 dst_fourcc = q_data_dst->fourcc;
1074
1075 buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
1076 bitstream_buf = vb2_dma_contig_plane_dma_addr(&buf->vb2_buf, 0);
1077 bitstream_size = q_data_dst->sizeimage;
1078
1079 if (!coda_is_initialized(dev)) {
1080 v4l2_err(v4l2_dev, "coda is not initialized.\n");
1081 return -EFAULT;
1082 }
1083
1084 if (dst_fourcc == V4L2_PIX_FMT_JPEG) {
1085 if (!ctx->params.jpeg_qmat_tab[0])
1086 ctx->params.jpeg_qmat_tab[0] = kmalloc(64, GFP_KERNEL);
1087 if (!ctx->params.jpeg_qmat_tab[1])
1088 ctx->params.jpeg_qmat_tab[1] = kmalloc(64, GFP_KERNEL);
1089 coda_set_jpeg_compression_quality(ctx, ctx->params.jpeg_quality);
1090 }
1091
1092 mutex_lock(&dev->coda_mutex);
1093
1094 coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
1095 coda_write(dev, bitstream_buf, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
1096 coda_write(dev, bitstream_buf, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
1097 switch (dev->devtype->product) {
1098 case CODA_DX6:
1099 coda_write(dev, CODADX6_STREAM_BUF_DYNALLOC_EN |
1100 CODADX6_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
1101 break;
1102 case CODA_960:
1103 coda_write(dev, 0, CODA9_GDI_WPROT_RGN_EN);
1104 /* fallthrough */
1105 case CODA_HX4:
1106 case CODA_7541:
1107 coda_write(dev, CODA7_STREAM_BUF_DYNALLOC_EN |
1108 CODA7_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
1109 break;
1110 }
1111
1112 ctx->frame_mem_ctrl &= ~(CODA_FRAME_CHROMA_INTERLEAVE | (0x3 << 9) |
1113 CODA9_FRAME_TILED2LINEAR);
1114 if (q_data_src->fourcc == V4L2_PIX_FMT_NV12)
1115 ctx->frame_mem_ctrl |= CODA_FRAME_CHROMA_INTERLEAVE;
1116 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP)
1117 ctx->frame_mem_ctrl |= (0x3 << 9) | CODA9_FRAME_TILED2LINEAR;
1118 coda_write(dev, ctx->frame_mem_ctrl, CODA_REG_BIT_FRAME_MEM_CTRL);
1119
1120 if (dev->devtype->product == CODA_DX6) {
1121 /* Configure the coda */
1122 coda_write(dev, dev->iram.paddr,
1123 CODADX6_REG_BIT_SEARCH_RAM_BASE_ADDR);
1124 }
1125
1126 /* Could set rotation here if needed */
1127 value = 0;
1128 switch (dev->devtype->product) {
1129 case CODA_DX6:
1130 value = (q_data_src->rect.width & CODADX6_PICWIDTH_MASK)
1131 << CODADX6_PICWIDTH_OFFSET;
1132 value |= (q_data_src->rect.height & CODADX6_PICHEIGHT_MASK)
1133 << CODA_PICHEIGHT_OFFSET;
1134 break;
1135 case CODA_HX4:
1136 case CODA_7541:
1137 if (dst_fourcc == V4L2_PIX_FMT_H264) {
1138 value = (round_up(q_data_src->rect.width, 16) &
1139 CODA7_PICWIDTH_MASK) << CODA7_PICWIDTH_OFFSET;
1140 value |= (round_up(q_data_src->rect.height, 16) &
1141 CODA7_PICHEIGHT_MASK) << CODA_PICHEIGHT_OFFSET;
1142 break;
1143 }
1144 /* fallthrough */
1145 case CODA_960:
1146 value = (q_data_src->rect.width & CODA7_PICWIDTH_MASK)
1147 << CODA7_PICWIDTH_OFFSET;
1148 value |= (q_data_src->rect.height & CODA7_PICHEIGHT_MASK)
1149 << CODA_PICHEIGHT_OFFSET;
1150 }
1151 coda_write(dev, value, CODA_CMD_ENC_SEQ_SRC_SIZE);
1152 if (dst_fourcc == V4L2_PIX_FMT_JPEG)
1153 ctx->params.framerate = 0;
1154 coda_write(dev, ctx->params.framerate,
1155 CODA_CMD_ENC_SEQ_SRC_F_RATE);
1156
1157 ctx->params.codec_mode = ctx->codec->mode;
1158 switch (dst_fourcc) {
1159 case V4L2_PIX_FMT_MPEG4:
1160 if (dev->devtype->product == CODA_960)
1161 coda_write(dev, CODA9_STD_MPEG4,
1162 CODA_CMD_ENC_SEQ_COD_STD);
1163 else
1164 coda_write(dev, CODA_STD_MPEG4,
1165 CODA_CMD_ENC_SEQ_COD_STD);
1166 coda_write(dev, 0, CODA_CMD_ENC_SEQ_MP4_PARA);
1167 break;
1168 case V4L2_PIX_FMT_H264:
1169 if (dev->devtype->product == CODA_960)
1170 coda_write(dev, CODA9_STD_H264,
1171 CODA_CMD_ENC_SEQ_COD_STD);
1172 else
1173 coda_write(dev, CODA_STD_H264,
1174 CODA_CMD_ENC_SEQ_COD_STD);
1175 value = ((ctx->params.h264_disable_deblocking_filter_idc &
1176 CODA_264PARAM_DISABLEDEBLK_MASK) <<
1177 CODA_264PARAM_DISABLEDEBLK_OFFSET) |
1178 ((ctx->params.h264_slice_alpha_c0_offset_div2 &
1179 CODA_264PARAM_DEBLKFILTEROFFSETALPHA_MASK) <<
1180 CODA_264PARAM_DEBLKFILTEROFFSETALPHA_OFFSET) |
1181 ((ctx->params.h264_slice_beta_offset_div2 &
1182 CODA_264PARAM_DEBLKFILTEROFFSETBETA_MASK) <<
1183 CODA_264PARAM_DEBLKFILTEROFFSETBETA_OFFSET) |
1184 (ctx->params.h264_constrained_intra_pred_flag <<
1185 CODA_264PARAM_CONSTRAINEDINTRAPREDFLAG_OFFSET) |
1186 (ctx->params.h264_chroma_qp_index_offset &
1187 CODA_264PARAM_CHROMAQPOFFSET_MASK);
1188 coda_write(dev, value, CODA_CMD_ENC_SEQ_264_PARA);
1189 break;
1190 case V4L2_PIX_FMT_JPEG:
1191 coda_write(dev, 0, CODA_CMD_ENC_SEQ_JPG_PARA);
1192 coda_write(dev, ctx->params.jpeg_restart_interval,
1193 CODA_CMD_ENC_SEQ_JPG_RST_INTERVAL);
1194 coda_write(dev, 0, CODA_CMD_ENC_SEQ_JPG_THUMB_EN);
1195 coda_write(dev, 0, CODA_CMD_ENC_SEQ_JPG_THUMB_SIZE);
1196 coda_write(dev, 0, CODA_CMD_ENC_SEQ_JPG_THUMB_OFFSET);
1197
1198 coda_jpeg_write_tables(ctx);
1199 break;
1200 default:
1201 v4l2_err(v4l2_dev,
1202 "dst format (0x%08x) invalid.\n", dst_fourcc);
1203 ret = -EINVAL;
1204 goto out;
1205 }
1206
1207 /*
1208 * slice mode and GOP size registers are used for thumb size/offset
1209 * in JPEG mode
1210 */
1211 if (dst_fourcc != V4L2_PIX_FMT_JPEG) {
1212 value = coda_slice_mode(ctx);
1213 coda_write(dev, value, CODA_CMD_ENC_SEQ_SLICE_MODE);
1214 value = ctx->params.gop_size;
1215 coda_write(dev, value, CODA_CMD_ENC_SEQ_GOP_SIZE);
1216 }
1217
1218 if (ctx->params.bitrate) {
1219 ctx->params.bitrate_changed = false;
1220 ctx->params.h264_intra_qp_changed = false;
1221
1222 /* Rate control enabled */
1223 value = (ctx->params.bitrate & CODA_RATECONTROL_BITRATE_MASK)
1224 << CODA_RATECONTROL_BITRATE_OFFSET;
1225 value |= 1 & CODA_RATECONTROL_ENABLE_MASK;
1226 value |= (ctx->params.vbv_delay &
1227 CODA_RATECONTROL_INITIALDELAY_MASK)
1228 << CODA_RATECONTROL_INITIALDELAY_OFFSET;
1229 if (dev->devtype->product == CODA_960)
1230 value |= BIT(31); /* disable autoskip */
1231 } else {
1232 value = 0;
1233 }
1234 coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_PARA);
1235
1236 coda_write(dev, ctx->params.vbv_size, CODA_CMD_ENC_SEQ_RC_BUF_SIZE);
1237 coda_write(dev, ctx->params.intra_refresh,
1238 CODA_CMD_ENC_SEQ_INTRA_REFRESH);
1239
1240 coda_write(dev, bitstream_buf, CODA_CMD_ENC_SEQ_BB_START);
1241 coda_write(dev, bitstream_size / 1024, CODA_CMD_ENC_SEQ_BB_SIZE);
1242
1243
1244 value = 0;
1245 if (dev->devtype->product == CODA_960)
1246 gamma = CODA9_DEFAULT_GAMMA;
1247 else
1248 gamma = CODA_DEFAULT_GAMMA;
1249 if (gamma > 0) {
1250 coda_write(dev, (gamma & CODA_GAMMA_MASK) << CODA_GAMMA_OFFSET,
1251 CODA_CMD_ENC_SEQ_RC_GAMMA);
1252 }
1253
1254 if (ctx->params.h264_min_qp || ctx->params.h264_max_qp) {
1255 coda_write(dev,
1256 ctx->params.h264_min_qp << CODA_QPMIN_OFFSET |
1257 ctx->params.h264_max_qp << CODA_QPMAX_OFFSET,
1258 CODA_CMD_ENC_SEQ_RC_QP_MIN_MAX);
1259 }
1260 if (dev->devtype->product == CODA_960) {
1261 if (ctx->params.h264_max_qp)
1262 value |= 1 << CODA9_OPTION_RCQPMAX_OFFSET;
1263 if (CODA_DEFAULT_GAMMA > 0)
1264 value |= 1 << CODA9_OPTION_GAMMA_OFFSET;
1265 } else {
1266 if (CODA_DEFAULT_GAMMA > 0) {
1267 if (dev->devtype->product == CODA_DX6)
1268 value |= 1 << CODADX6_OPTION_GAMMA_OFFSET;
1269 else
1270 value |= 1 << CODA7_OPTION_GAMMA_OFFSET;
1271 }
1272 if (ctx->params.h264_min_qp)
1273 value |= 1 << CODA7_OPTION_RCQPMIN_OFFSET;
1274 if (ctx->params.h264_max_qp)
1275 value |= 1 << CODA7_OPTION_RCQPMAX_OFFSET;
1276 }
1277 coda_write(dev, value, CODA_CMD_ENC_SEQ_OPTION);
1278
1279 coda_write(dev, 0, CODA_CMD_ENC_SEQ_RC_INTERVAL_MODE);
1280
1281 coda_setup_iram(ctx);
1282
1283 if (dst_fourcc == V4L2_PIX_FMT_H264) {
1284 switch (dev->devtype->product) {
1285 case CODA_DX6:
1286 value = FMO_SLICE_SAVE_BUF_SIZE << 7;
1287 coda_write(dev, value, CODADX6_CMD_ENC_SEQ_FMO);
1288 break;
1289 case CODA_HX4:
1290 case CODA_7541:
1291 coda_write(dev, ctx->iram_info.search_ram_paddr,
1292 CODA7_CMD_ENC_SEQ_SEARCH_BASE);
1293 coda_write(dev, ctx->iram_info.search_ram_size,
1294 CODA7_CMD_ENC_SEQ_SEARCH_SIZE);
1295 break;
1296 case CODA_960:
1297 coda_write(dev, 0, CODA9_CMD_ENC_SEQ_ME_OPTION);
1298 coda_write(dev, 0, CODA9_CMD_ENC_SEQ_INTRA_WEIGHT);
1299 }
1300 }
1301
1302 ret = coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT);
1303 if (ret < 0) {
1304 v4l2_err(v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
1305 goto out;
1306 }
1307
1308 if (coda_read(dev, CODA_RET_ENC_SEQ_SUCCESS) == 0) {
1309 v4l2_err(v4l2_dev, "CODA_COMMAND_SEQ_INIT failed\n");
1310 ret = -EFAULT;
1311 goto out;
1312 }
1313 ctx->initialized = 1;
1314
1315 if (dst_fourcc != V4L2_PIX_FMT_JPEG) {
1316 if (dev->devtype->product == CODA_960)
1317 ctx->num_internal_frames = 4;
1318 else
1319 ctx->num_internal_frames = 2;
1320 ret = coda_alloc_framebuffers(ctx, q_data_src, dst_fourcc);
1321 if (ret < 0) {
1322 v4l2_err(v4l2_dev, "failed to allocate framebuffers\n");
1323 goto out;
1324 }
1325 num_fb = 2;
1326 stride = q_data_src->bytesperline;
1327 } else {
1328 ctx->num_internal_frames = 0;
1329 num_fb = 0;
1330 stride = 0;
1331 }
1332 coda_write(dev, num_fb, CODA_CMD_SET_FRAME_BUF_NUM);
1333 coda_write(dev, stride, CODA_CMD_SET_FRAME_BUF_STRIDE);
1334
1335 if (dev->devtype->product == CODA_HX4 ||
1336 dev->devtype->product == CODA_7541) {
1337 coda_write(dev, q_data_src->bytesperline,
1338 CODA7_CMD_SET_FRAME_SOURCE_BUF_STRIDE);
1339 }
1340 if (dev->devtype->product != CODA_DX6) {
1341 coda_write(dev, ctx->iram_info.buf_bit_use,
1342 CODA7_CMD_SET_FRAME_AXI_BIT_ADDR);
1343 coda_write(dev, ctx->iram_info.buf_ip_ac_dc_use,
1344 CODA7_CMD_SET_FRAME_AXI_IPACDC_ADDR);
1345 coda_write(dev, ctx->iram_info.buf_dbk_y_use,
1346 CODA7_CMD_SET_FRAME_AXI_DBKY_ADDR);
1347 coda_write(dev, ctx->iram_info.buf_dbk_c_use,
1348 CODA7_CMD_SET_FRAME_AXI_DBKC_ADDR);
1349 coda_write(dev, ctx->iram_info.buf_ovl_use,
1350 CODA7_CMD_SET_FRAME_AXI_OVL_ADDR);
1351 if (dev->devtype->product == CODA_960) {
1352 coda_write(dev, ctx->iram_info.buf_btp_use,
1353 CODA9_CMD_SET_FRAME_AXI_BTP_ADDR);
1354
1355 coda9_set_frame_cache(ctx, q_data_src->fourcc);
1356
1357 /* FIXME */
1358 coda_write(dev, ctx->internal_frames[2].buf.paddr,
1359 CODA9_CMD_SET_FRAME_SUBSAMP_A);
1360 coda_write(dev, ctx->internal_frames[3].buf.paddr,
1361 CODA9_CMD_SET_FRAME_SUBSAMP_B);
1362 }
1363 }
1364
1365 ret = coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF);
1366 if (ret < 0) {
1367 v4l2_err(v4l2_dev, "CODA_COMMAND_SET_FRAME_BUF timeout\n");
1368 goto out;
1369 }
1370
1371 coda_dbg(1, ctx, "start encoding %dx%d %4.4s->%4.4s @ %d/%d Hz\n",
1372 q_data_src->rect.width, q_data_src->rect.height,
1373 (char *)&ctx->codec->src_fourcc, (char *)&dst_fourcc,
1374 ctx->params.framerate & 0xffff,
1375 (ctx->params.framerate >> 16) + 1);
1376
1377 /* Save stream headers */
1378 buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
1379 switch (dst_fourcc) {
1380 case V4L2_PIX_FMT_H264:
1381 /*
1382 * Get SPS in the first frame and copy it to an
1383 * intermediate buffer.
1384 */
1385 ret = coda_encode_header(ctx, buf, CODA_HEADER_H264_SPS,
1386 &ctx->vpu_header[0][0],
1387 &ctx->vpu_header_size[0]);
1388 if (ret < 0)
1389 goto out;
1390
1391 /*
1392 * If visible width or height are not aligned to macroblock
1393 * size, the crop_right and crop_bottom SPS fields must be set
1394 * to the difference between visible and coded size. This is
1395 * only supported by CODA960 firmware. All others do not allow
1396 * writing frame cropping parameters, so we have to manually
1397 * fix up the SPS RBSP (Sequence Parameter Set Raw Byte
1398 * Sequence Payload) ourselves.
1399 */
1400 if (ctx->dev->devtype->product != CODA_960 &&
1401 ((q_data_src->rect.width % 16) ||
1402 (q_data_src->rect.height % 16))) {
1403 ret = coda_h264_sps_fixup(ctx, q_data_src->rect.width,
1404 q_data_src->rect.height,
1405 &ctx->vpu_header[0][0],
1406 &ctx->vpu_header_size[0],
1407 sizeof(ctx->vpu_header[0]));
1408 if (ret < 0)
1409 goto out;
1410 }
1411
1412 /*
1413 * Get PPS in the first frame and copy it to an
1414 * intermediate buffer.
1415 */
1416 ret = coda_encode_header(ctx, buf, CODA_HEADER_H264_PPS,
1417 &ctx->vpu_header[1][0],
1418 &ctx->vpu_header_size[1]);
1419 if (ret < 0)
1420 goto out;
1421
1422 /*
1423 * Length of H.264 headers is variable and thus it might not be
1424 * aligned for the coda to append the encoded frame. In that is
1425 * the case a filler NAL must be added to header 2.
1426 */
1427 ctx->vpu_header_size[2] = coda_h264_padding(
1428 (ctx->vpu_header_size[0] +
1429 ctx->vpu_header_size[1]),
1430 ctx->vpu_header[2]);
1431 break;
1432 case V4L2_PIX_FMT_MPEG4:
1433 /*
1434 * Get VOS in the first frame and copy it to an
1435 * intermediate buffer
1436 */
1437 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VOS,
1438 &ctx->vpu_header[0][0],
1439 &ctx->vpu_header_size[0]);
1440 if (ret < 0)
1441 goto out;
1442
1443 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VIS,
1444 &ctx->vpu_header[1][0],
1445 &ctx->vpu_header_size[1]);
1446 if (ret < 0)
1447 goto out;
1448
1449 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VOL,
1450 &ctx->vpu_header[2][0],
1451 &ctx->vpu_header_size[2]);
1452 if (ret < 0)
1453 goto out;
1454 break;
1455 default:
1456 /* No more formats need to save headers at the moment */
1457 break;
1458 }
1459
1460 out:
1461 mutex_unlock(&dev->coda_mutex);
1462 return ret;
1463 }
1464
coda_prepare_encode(struct coda_ctx * ctx)1465 static int coda_prepare_encode(struct coda_ctx *ctx)
1466 {
1467 struct coda_q_data *q_data_src, *q_data_dst;
1468 struct vb2_v4l2_buffer *src_buf, *dst_buf;
1469 struct coda_dev *dev = ctx->dev;
1470 int force_ipicture;
1471 int quant_param = 0;
1472 u32 pic_stream_buffer_addr, pic_stream_buffer_size;
1473 u32 rot_mode = 0;
1474 u32 dst_fourcc;
1475 u32 reg;
1476 int ret;
1477
1478 ret = coda_enc_param_change(ctx);
1479 if (ret < 0) {
1480 v4l2_warn(&ctx->dev->v4l2_dev, "parameter change failed: %d\n",
1481 ret);
1482 }
1483
1484 src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
1485 dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
1486 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1487 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1488 dst_fourcc = q_data_dst->fourcc;
1489
1490 src_buf->sequence = ctx->osequence;
1491 dst_buf->sequence = ctx->osequence;
1492 ctx->osequence++;
1493
1494 force_ipicture = ctx->params.force_ipicture;
1495 if (force_ipicture)
1496 ctx->params.force_ipicture = false;
1497 else if (ctx->params.gop_size != 0 &&
1498 (src_buf->sequence % ctx->params.gop_size) == 0)
1499 force_ipicture = 1;
1500
1501 /*
1502 * Workaround coda firmware BUG that only marks the first
1503 * frame as IDR. This is a problem for some decoders that can't
1504 * recover when a frame is lost.
1505 */
1506 if (!force_ipicture) {
1507 src_buf->flags |= V4L2_BUF_FLAG_PFRAME;
1508 src_buf->flags &= ~V4L2_BUF_FLAG_KEYFRAME;
1509 } else {
1510 src_buf->flags |= V4L2_BUF_FLAG_KEYFRAME;
1511 src_buf->flags &= ~V4L2_BUF_FLAG_PFRAME;
1512 }
1513
1514 if (dev->devtype->product == CODA_960)
1515 coda_set_gdi_regs(ctx);
1516
1517 /*
1518 * Copy headers in front of the first frame and forced I frames for
1519 * H.264 only. In MPEG4 they are already copied by the CODA.
1520 */
1521 if (src_buf->sequence == 0 || force_ipicture) {
1522 pic_stream_buffer_addr =
1523 vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0) +
1524 ctx->vpu_header_size[0] +
1525 ctx->vpu_header_size[1] +
1526 ctx->vpu_header_size[2];
1527 pic_stream_buffer_size = q_data_dst->sizeimage -
1528 ctx->vpu_header_size[0] -
1529 ctx->vpu_header_size[1] -
1530 ctx->vpu_header_size[2];
1531 memcpy(vb2_plane_vaddr(&dst_buf->vb2_buf, 0),
1532 &ctx->vpu_header[0][0], ctx->vpu_header_size[0]);
1533 memcpy(vb2_plane_vaddr(&dst_buf->vb2_buf, 0)
1534 + ctx->vpu_header_size[0], &ctx->vpu_header[1][0],
1535 ctx->vpu_header_size[1]);
1536 memcpy(vb2_plane_vaddr(&dst_buf->vb2_buf, 0)
1537 + ctx->vpu_header_size[0] + ctx->vpu_header_size[1],
1538 &ctx->vpu_header[2][0], ctx->vpu_header_size[2]);
1539 } else {
1540 pic_stream_buffer_addr =
1541 vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
1542 pic_stream_buffer_size = q_data_dst->sizeimage;
1543 }
1544
1545 if (force_ipicture) {
1546 switch (dst_fourcc) {
1547 case V4L2_PIX_FMT_H264:
1548 quant_param = ctx->params.h264_intra_qp;
1549 break;
1550 case V4L2_PIX_FMT_MPEG4:
1551 quant_param = ctx->params.mpeg4_intra_qp;
1552 break;
1553 case V4L2_PIX_FMT_JPEG:
1554 quant_param = 30;
1555 break;
1556 default:
1557 v4l2_warn(&ctx->dev->v4l2_dev,
1558 "cannot set intra qp, fmt not supported\n");
1559 break;
1560 }
1561 } else {
1562 switch (dst_fourcc) {
1563 case V4L2_PIX_FMT_H264:
1564 quant_param = ctx->params.h264_inter_qp;
1565 break;
1566 case V4L2_PIX_FMT_MPEG4:
1567 quant_param = ctx->params.mpeg4_inter_qp;
1568 break;
1569 default:
1570 v4l2_warn(&ctx->dev->v4l2_dev,
1571 "cannot set inter qp, fmt not supported\n");
1572 break;
1573 }
1574 }
1575
1576 /* submit */
1577 if (ctx->params.rot_mode)
1578 rot_mode = CODA_ROT_MIR_ENABLE | ctx->params.rot_mode;
1579 coda_write(dev, rot_mode, CODA_CMD_ENC_PIC_ROT_MODE);
1580 coda_write(dev, quant_param, CODA_CMD_ENC_PIC_QS);
1581
1582 if (dev->devtype->product == CODA_960) {
1583 coda_write(dev, 4/*FIXME: 0*/, CODA9_CMD_ENC_PIC_SRC_INDEX);
1584 coda_write(dev, q_data_src->bytesperline,
1585 CODA9_CMD_ENC_PIC_SRC_STRIDE);
1586 coda_write(dev, 0, CODA9_CMD_ENC_PIC_SUB_FRAME_SYNC);
1587
1588 reg = CODA9_CMD_ENC_PIC_SRC_ADDR_Y;
1589 } else {
1590 reg = CODA_CMD_ENC_PIC_SRC_ADDR_Y;
1591 }
1592 coda_write_base(ctx, q_data_src, src_buf, reg);
1593
1594 coda_write(dev, force_ipicture << 1 & 0x2,
1595 CODA_CMD_ENC_PIC_OPTION);
1596
1597 coda_write(dev, pic_stream_buffer_addr, CODA_CMD_ENC_PIC_BB_START);
1598 coda_write(dev, pic_stream_buffer_size / 1024,
1599 CODA_CMD_ENC_PIC_BB_SIZE);
1600
1601 if (!ctx->streamon_out) {
1602 /* After streamoff on the output side, set stream end flag */
1603 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
1604 coda_write(dev, ctx->bit_stream_param,
1605 CODA_REG_BIT_BIT_STREAM_PARAM);
1606 }
1607
1608 if (dev->devtype->product != CODA_DX6)
1609 coda_write(dev, ctx->iram_info.axi_sram_use,
1610 CODA7_REG_BIT_AXI_SRAM_USE);
1611
1612 trace_coda_enc_pic_run(ctx, src_buf);
1613
1614 coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
1615
1616 return 0;
1617 }
1618
coda_frame_type_char(u32 flags)1619 static char coda_frame_type_char(u32 flags)
1620 {
1621 return (flags & V4L2_BUF_FLAG_KEYFRAME) ? 'I' :
1622 (flags & V4L2_BUF_FLAG_PFRAME) ? 'P' :
1623 (flags & V4L2_BUF_FLAG_BFRAME) ? 'B' : '?';
1624 }
1625
coda_finish_encode(struct coda_ctx * ctx)1626 static void coda_finish_encode(struct coda_ctx *ctx)
1627 {
1628 struct vb2_v4l2_buffer *src_buf, *dst_buf;
1629 struct coda_dev *dev = ctx->dev;
1630 u32 wr_ptr, start_ptr;
1631
1632 /*
1633 * Lock to make sure that an encoder stop command running in parallel
1634 * will either already have marked src_buf as last, or it will wake up
1635 * the capture queue after the buffers are returned.
1636 */
1637 mutex_lock(&ctx->wakeup_mutex);
1638 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
1639 dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
1640
1641 trace_coda_enc_pic_done(ctx, dst_buf);
1642
1643 /* Get results from the coda */
1644 start_ptr = coda_read(dev, CODA_CMD_ENC_PIC_BB_START);
1645 wr_ptr = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
1646
1647 /* Calculate bytesused field */
1648 if (dst_buf->sequence == 0 ||
1649 src_buf->flags & V4L2_BUF_FLAG_KEYFRAME) {
1650 vb2_set_plane_payload(&dst_buf->vb2_buf, 0, wr_ptr - start_ptr +
1651 ctx->vpu_header_size[0] +
1652 ctx->vpu_header_size[1] +
1653 ctx->vpu_header_size[2]);
1654 } else {
1655 vb2_set_plane_payload(&dst_buf->vb2_buf, 0, wr_ptr - start_ptr);
1656 }
1657
1658 coda_dbg(1, ctx, "frame size = %u\n", wr_ptr - start_ptr);
1659
1660 coda_read(dev, CODA_RET_ENC_PIC_SLICE_NUM);
1661 coda_read(dev, CODA_RET_ENC_PIC_FLAG);
1662
1663 dst_buf->flags &= ~(V4L2_BUF_FLAG_KEYFRAME |
1664 V4L2_BUF_FLAG_PFRAME |
1665 V4L2_BUF_FLAG_LAST);
1666 if (coda_read(dev, CODA_RET_ENC_PIC_TYPE) == 0)
1667 dst_buf->flags |= V4L2_BUF_FLAG_KEYFRAME;
1668 else
1669 dst_buf->flags |= V4L2_BUF_FLAG_PFRAME;
1670 dst_buf->flags |= src_buf->flags & V4L2_BUF_FLAG_LAST;
1671
1672 v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, false);
1673
1674 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
1675
1676 dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
1677 coda_m2m_buf_done(ctx, dst_buf, VB2_BUF_STATE_DONE);
1678 mutex_unlock(&ctx->wakeup_mutex);
1679
1680 ctx->gopcounter--;
1681 if (ctx->gopcounter < 0)
1682 ctx->gopcounter = ctx->params.gop_size - 1;
1683
1684 coda_dbg(1, ctx, "job finished: encoded %c frame (%d)%s\n",
1685 coda_frame_type_char(dst_buf->flags), dst_buf->sequence,
1686 (dst_buf->flags & V4L2_BUF_FLAG_LAST) ? " (last)" : "");
1687 }
1688
coda_seq_end_work(struct work_struct * work)1689 static void coda_seq_end_work(struct work_struct *work)
1690 {
1691 struct coda_ctx *ctx = container_of(work, struct coda_ctx, seq_end_work);
1692 struct coda_dev *dev = ctx->dev;
1693
1694 mutex_lock(&ctx->buffer_mutex);
1695 mutex_lock(&dev->coda_mutex);
1696
1697 if (ctx->initialized == 0)
1698 goto out;
1699
1700 coda_dbg(1, ctx, "%s: sent command 'SEQ_END' to coda\n", __func__);
1701 if (coda_command_sync(ctx, CODA_COMMAND_SEQ_END)) {
1702 v4l2_err(&dev->v4l2_dev,
1703 "CODA_COMMAND_SEQ_END failed\n");
1704 }
1705
1706 /*
1707 * FIXME: Sometimes h.264 encoding fails with 8-byte sequences missing
1708 * from the output stream after the h.264 decoder has run. Resetting the
1709 * hardware after the decoder has finished seems to help.
1710 */
1711 if (dev->devtype->product == CODA_960)
1712 coda_hw_reset(ctx);
1713
1714 kfifo_init(&ctx->bitstream_fifo,
1715 ctx->bitstream.vaddr, ctx->bitstream.size);
1716
1717 coda_free_framebuffers(ctx);
1718
1719 ctx->initialized = 0;
1720
1721 out:
1722 mutex_unlock(&dev->coda_mutex);
1723 mutex_unlock(&ctx->buffer_mutex);
1724 }
1725
coda_bit_release(struct coda_ctx * ctx)1726 static void coda_bit_release(struct coda_ctx *ctx)
1727 {
1728 mutex_lock(&ctx->buffer_mutex);
1729 coda_free_framebuffers(ctx);
1730 coda_free_context_buffers(ctx);
1731 coda_free_bitstream_buffer(ctx);
1732 mutex_unlock(&ctx->buffer_mutex);
1733 }
1734
1735 const struct coda_context_ops coda_bit_encode_ops = {
1736 .queue_init = coda_encoder_queue_init,
1737 .reqbufs = coda_encoder_reqbufs,
1738 .start_streaming = coda_start_encoding,
1739 .prepare_run = coda_prepare_encode,
1740 .finish_run = coda_finish_encode,
1741 .seq_end_work = coda_seq_end_work,
1742 .release = coda_bit_release,
1743 };
1744
1745 /*
1746 * Decoder context operations
1747 */
1748
coda_alloc_bitstream_buffer(struct coda_ctx * ctx,struct coda_q_data * q_data)1749 static int coda_alloc_bitstream_buffer(struct coda_ctx *ctx,
1750 struct coda_q_data *q_data)
1751 {
1752 if (ctx->bitstream.vaddr)
1753 return 0;
1754
1755 ctx->bitstream.size = roundup_pow_of_two(q_data->sizeimage * 2);
1756 ctx->bitstream.vaddr = dma_alloc_wc(ctx->dev->dev, ctx->bitstream.size,
1757 &ctx->bitstream.paddr, GFP_KERNEL);
1758 if (!ctx->bitstream.vaddr) {
1759 v4l2_err(&ctx->dev->v4l2_dev,
1760 "failed to allocate bitstream ringbuffer");
1761 return -ENOMEM;
1762 }
1763 kfifo_init(&ctx->bitstream_fifo,
1764 ctx->bitstream.vaddr, ctx->bitstream.size);
1765
1766 return 0;
1767 }
1768
coda_free_bitstream_buffer(struct coda_ctx * ctx)1769 static void coda_free_bitstream_buffer(struct coda_ctx *ctx)
1770 {
1771 if (ctx->bitstream.vaddr == NULL)
1772 return;
1773
1774 dma_free_wc(ctx->dev->dev, ctx->bitstream.size, ctx->bitstream.vaddr,
1775 ctx->bitstream.paddr);
1776 ctx->bitstream.vaddr = NULL;
1777 kfifo_init(&ctx->bitstream_fifo, NULL, 0);
1778 }
1779
coda_decoder_reqbufs(struct coda_ctx * ctx,struct v4l2_requestbuffers * rb)1780 static int coda_decoder_reqbufs(struct coda_ctx *ctx,
1781 struct v4l2_requestbuffers *rb)
1782 {
1783 struct coda_q_data *q_data_src;
1784 int ret;
1785
1786 if (rb->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1787 return 0;
1788
1789 if (rb->count) {
1790 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1791 ret = coda_alloc_context_buffers(ctx, q_data_src);
1792 if (ret < 0)
1793 return ret;
1794 ret = coda_alloc_bitstream_buffer(ctx, q_data_src);
1795 if (ret < 0) {
1796 coda_free_context_buffers(ctx);
1797 return ret;
1798 }
1799 } else {
1800 coda_free_bitstream_buffer(ctx);
1801 coda_free_context_buffers(ctx);
1802 }
1803
1804 return 0;
1805 }
1806
coda_reorder_enable(struct coda_ctx * ctx)1807 static bool coda_reorder_enable(struct coda_ctx *ctx)
1808 {
1809 struct coda_dev *dev = ctx->dev;
1810 int profile;
1811
1812 if (dev->devtype->product != CODA_HX4 &&
1813 dev->devtype->product != CODA_7541 &&
1814 dev->devtype->product != CODA_960)
1815 return false;
1816
1817 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG)
1818 return false;
1819
1820 if (ctx->codec->src_fourcc != V4L2_PIX_FMT_H264)
1821 return true;
1822
1823 profile = coda_h264_profile(ctx->params.h264_profile_idc);
1824 if (profile < 0)
1825 v4l2_warn(&dev->v4l2_dev, "Unknown H264 Profile: %u\n",
1826 ctx->params.h264_profile_idc);
1827
1828 /* Baseline profile does not support reordering */
1829 return profile > V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE;
1830 }
1831
__coda_decoder_seq_init(struct coda_ctx * ctx)1832 static int __coda_decoder_seq_init(struct coda_ctx *ctx)
1833 {
1834 struct coda_q_data *q_data_src, *q_data_dst;
1835 u32 bitstream_buf, bitstream_size;
1836 struct coda_dev *dev = ctx->dev;
1837 int width, height;
1838 u32 src_fourcc, dst_fourcc;
1839 u32 val;
1840 int ret;
1841
1842 lockdep_assert_held(&dev->coda_mutex);
1843
1844 coda_dbg(1, ctx, "Video Data Order Adapter: %s\n",
1845 ctx->use_vdoa ? "Enabled" : "Disabled");
1846
1847 /* Start decoding */
1848 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1849 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1850 bitstream_buf = ctx->bitstream.paddr;
1851 bitstream_size = ctx->bitstream.size;
1852 src_fourcc = q_data_src->fourcc;
1853 dst_fourcc = q_data_dst->fourcc;
1854
1855 /* Update coda bitstream read and write pointers from kfifo */
1856 coda_kfifo_sync_to_device_full(ctx);
1857
1858 ctx->frame_mem_ctrl &= ~(CODA_FRAME_CHROMA_INTERLEAVE | (0x3 << 9) |
1859 CODA9_FRAME_TILED2LINEAR);
1860 if (dst_fourcc == V4L2_PIX_FMT_NV12 || dst_fourcc == V4L2_PIX_FMT_YUYV)
1861 ctx->frame_mem_ctrl |= CODA_FRAME_CHROMA_INTERLEAVE;
1862 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP)
1863 ctx->frame_mem_ctrl |= (0x3 << 9) |
1864 ((ctx->use_vdoa) ? 0 : CODA9_FRAME_TILED2LINEAR);
1865 coda_write(dev, ctx->frame_mem_ctrl, CODA_REG_BIT_FRAME_MEM_CTRL);
1866
1867 ctx->display_idx = -1;
1868 ctx->frm_dis_flg = 0;
1869 coda_write(dev, 0, CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
1870
1871 coda_write(dev, bitstream_buf, CODA_CMD_DEC_SEQ_BB_START);
1872 coda_write(dev, bitstream_size / 1024, CODA_CMD_DEC_SEQ_BB_SIZE);
1873 val = 0;
1874 if (coda_reorder_enable(ctx))
1875 val |= CODA_REORDER_ENABLE;
1876 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG)
1877 val |= CODA_NO_INT_ENABLE;
1878 coda_write(dev, val, CODA_CMD_DEC_SEQ_OPTION);
1879
1880 ctx->params.codec_mode = ctx->codec->mode;
1881 if (dev->devtype->product == CODA_960 &&
1882 src_fourcc == V4L2_PIX_FMT_MPEG4)
1883 ctx->params.codec_mode_aux = CODA_MP4_AUX_MPEG4;
1884 else
1885 ctx->params.codec_mode_aux = 0;
1886 if (src_fourcc == V4L2_PIX_FMT_MPEG4) {
1887 coda_write(dev, CODA_MP4_CLASS_MPEG4,
1888 CODA_CMD_DEC_SEQ_MP4_ASP_CLASS);
1889 }
1890 if (src_fourcc == V4L2_PIX_FMT_H264) {
1891 if (dev->devtype->product == CODA_HX4 ||
1892 dev->devtype->product == CODA_7541) {
1893 coda_write(dev, ctx->psbuf.paddr,
1894 CODA_CMD_DEC_SEQ_PS_BB_START);
1895 coda_write(dev, (CODA7_PS_BUF_SIZE / 1024),
1896 CODA_CMD_DEC_SEQ_PS_BB_SIZE);
1897 }
1898 if (dev->devtype->product == CODA_960) {
1899 coda_write(dev, 0, CODA_CMD_DEC_SEQ_X264_MV_EN);
1900 coda_write(dev, 512, CODA_CMD_DEC_SEQ_SPP_CHUNK_SIZE);
1901 }
1902 }
1903 if (src_fourcc == V4L2_PIX_FMT_JPEG)
1904 coda_write(dev, 0, CODA_CMD_DEC_SEQ_JPG_THUMB_EN);
1905 if (dev->devtype->product != CODA_960)
1906 coda_write(dev, 0, CODA_CMD_DEC_SEQ_SRC_SIZE);
1907
1908 ctx->bit_stream_param = CODA_BIT_DEC_SEQ_INIT_ESCAPE;
1909 ret = coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT);
1910 ctx->bit_stream_param = 0;
1911 if (ret) {
1912 v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
1913 return ret;
1914 }
1915 ctx->sequence_offset = ~0U;
1916 ctx->initialized = 1;
1917
1918 /* Update kfifo out pointer from coda bitstream read pointer */
1919 coda_kfifo_sync_from_device(ctx);
1920
1921 if (coda_read(dev, CODA_RET_DEC_SEQ_SUCCESS) == 0) {
1922 v4l2_err(&dev->v4l2_dev,
1923 "CODA_COMMAND_SEQ_INIT failed, error code = 0x%x\n",
1924 coda_read(dev, CODA_RET_DEC_SEQ_ERR_REASON));
1925 return -EAGAIN;
1926 }
1927
1928 val = coda_read(dev, CODA_RET_DEC_SEQ_SRC_SIZE);
1929 if (dev->devtype->product == CODA_DX6) {
1930 width = (val >> CODADX6_PICWIDTH_OFFSET) & CODADX6_PICWIDTH_MASK;
1931 height = val & CODADX6_PICHEIGHT_MASK;
1932 } else {
1933 width = (val >> CODA7_PICWIDTH_OFFSET) & CODA7_PICWIDTH_MASK;
1934 height = val & CODA7_PICHEIGHT_MASK;
1935 }
1936
1937 if (width > q_data_dst->bytesperline || height > q_data_dst->height) {
1938 v4l2_err(&dev->v4l2_dev, "stream is %dx%d, not %dx%d\n",
1939 width, height, q_data_dst->bytesperline,
1940 q_data_dst->height);
1941 return -EINVAL;
1942 }
1943
1944 width = round_up(width, 16);
1945 height = round_up(height, 16);
1946
1947 coda_dbg(1, ctx, "start decoding: %dx%d\n", width, height);
1948
1949 ctx->num_internal_frames = coda_read(dev, CODA_RET_DEC_SEQ_FRAME_NEED);
1950 /*
1951 * If the VDOA is used, the decoder needs one additional frame,
1952 * because the frames are freed when the next frame is decoded.
1953 * Otherwise there are visible errors in the decoded frames (green
1954 * regions in displayed frames) and a broken order of frames (earlier
1955 * frames are sporadically displayed after later frames).
1956 */
1957 if (ctx->use_vdoa)
1958 ctx->num_internal_frames += 1;
1959 if (ctx->num_internal_frames > CODA_MAX_FRAMEBUFFERS) {
1960 v4l2_err(&dev->v4l2_dev,
1961 "not enough framebuffers to decode (%d < %d)\n",
1962 CODA_MAX_FRAMEBUFFERS, ctx->num_internal_frames);
1963 return -EINVAL;
1964 }
1965
1966 if (src_fourcc == V4L2_PIX_FMT_H264) {
1967 u32 left_right;
1968 u32 top_bottom;
1969
1970 left_right = coda_read(dev, CODA_RET_DEC_SEQ_CROP_LEFT_RIGHT);
1971 top_bottom = coda_read(dev, CODA_RET_DEC_SEQ_CROP_TOP_BOTTOM);
1972
1973 q_data_dst->rect.left = (left_right >> 10) & 0x3ff;
1974 q_data_dst->rect.top = (top_bottom >> 10) & 0x3ff;
1975 q_data_dst->rect.width = width - q_data_dst->rect.left -
1976 (left_right & 0x3ff);
1977 q_data_dst->rect.height = height - q_data_dst->rect.top -
1978 (top_bottom & 0x3ff);
1979 }
1980
1981 if (dev->devtype->product != CODA_DX6) {
1982 u8 profile, level;
1983
1984 val = coda_read(dev, CODA7_RET_DEC_SEQ_HEADER_REPORT);
1985 profile = val & 0xff;
1986 level = (val >> 8) & 0x7f;
1987
1988 if (profile || level)
1989 coda_update_profile_level_ctrls(ctx, profile, level);
1990 }
1991
1992 return 0;
1993 }
1994
coda_dec_seq_init_work(struct work_struct * work)1995 static void coda_dec_seq_init_work(struct work_struct *work)
1996 {
1997 struct coda_ctx *ctx = container_of(work,
1998 struct coda_ctx, seq_init_work);
1999 struct coda_dev *dev = ctx->dev;
2000 int ret;
2001
2002 mutex_lock(&ctx->buffer_mutex);
2003 mutex_lock(&dev->coda_mutex);
2004
2005 if (ctx->initialized == 1)
2006 goto out;
2007
2008 ret = __coda_decoder_seq_init(ctx);
2009 if (ret < 0)
2010 goto out;
2011
2012 ctx->initialized = 1;
2013
2014 out:
2015 mutex_unlock(&dev->coda_mutex);
2016 mutex_unlock(&ctx->buffer_mutex);
2017 }
2018
__coda_start_decoding(struct coda_ctx * ctx)2019 static int __coda_start_decoding(struct coda_ctx *ctx)
2020 {
2021 struct coda_q_data *q_data_src, *q_data_dst;
2022 struct coda_dev *dev = ctx->dev;
2023 u32 src_fourcc, dst_fourcc;
2024 int ret;
2025
2026 if (!ctx->initialized) {
2027 ret = __coda_decoder_seq_init(ctx);
2028 if (ret < 0)
2029 return ret;
2030 }
2031
2032 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
2033 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
2034 src_fourcc = q_data_src->fourcc;
2035 dst_fourcc = q_data_dst->fourcc;
2036
2037 coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
2038
2039 ret = coda_alloc_framebuffers(ctx, q_data_dst, src_fourcc);
2040 if (ret < 0) {
2041 v4l2_err(&dev->v4l2_dev, "failed to allocate framebuffers\n");
2042 return ret;
2043 }
2044
2045 /* Tell the decoder how many frame buffers we allocated. */
2046 coda_write(dev, ctx->num_internal_frames, CODA_CMD_SET_FRAME_BUF_NUM);
2047 coda_write(dev, round_up(q_data_dst->rect.width, 16),
2048 CODA_CMD_SET_FRAME_BUF_STRIDE);
2049
2050 if (dev->devtype->product != CODA_DX6) {
2051 /* Set secondary AXI IRAM */
2052 coda_setup_iram(ctx);
2053
2054 coda_write(dev, ctx->iram_info.buf_bit_use,
2055 CODA7_CMD_SET_FRAME_AXI_BIT_ADDR);
2056 coda_write(dev, ctx->iram_info.buf_ip_ac_dc_use,
2057 CODA7_CMD_SET_FRAME_AXI_IPACDC_ADDR);
2058 coda_write(dev, ctx->iram_info.buf_dbk_y_use,
2059 CODA7_CMD_SET_FRAME_AXI_DBKY_ADDR);
2060 coda_write(dev, ctx->iram_info.buf_dbk_c_use,
2061 CODA7_CMD_SET_FRAME_AXI_DBKC_ADDR);
2062 coda_write(dev, ctx->iram_info.buf_ovl_use,
2063 CODA7_CMD_SET_FRAME_AXI_OVL_ADDR);
2064 if (dev->devtype->product == CODA_960) {
2065 coda_write(dev, ctx->iram_info.buf_btp_use,
2066 CODA9_CMD_SET_FRAME_AXI_BTP_ADDR);
2067
2068 coda_write(dev, -1, CODA9_CMD_SET_FRAME_DELAY);
2069 coda9_set_frame_cache(ctx, dst_fourcc);
2070 }
2071 }
2072
2073 if (src_fourcc == V4L2_PIX_FMT_H264) {
2074 coda_write(dev, ctx->slicebuf.paddr,
2075 CODA_CMD_SET_FRAME_SLICE_BB_START);
2076 coda_write(dev, ctx->slicebuf.size / 1024,
2077 CODA_CMD_SET_FRAME_SLICE_BB_SIZE);
2078 }
2079
2080 if (dev->devtype->product == CODA_HX4 ||
2081 dev->devtype->product == CODA_7541) {
2082 int max_mb_x = 1920 / 16;
2083 int max_mb_y = 1088 / 16;
2084 int max_mb_num = max_mb_x * max_mb_y;
2085
2086 coda_write(dev, max_mb_num << 16 | max_mb_x << 8 | max_mb_y,
2087 CODA7_CMD_SET_FRAME_MAX_DEC_SIZE);
2088 } else if (dev->devtype->product == CODA_960) {
2089 int max_mb_x = 1920 / 16;
2090 int max_mb_y = 1088 / 16;
2091 int max_mb_num = max_mb_x * max_mb_y;
2092
2093 coda_write(dev, max_mb_num << 16 | max_mb_x << 8 | max_mb_y,
2094 CODA9_CMD_SET_FRAME_MAX_DEC_SIZE);
2095 }
2096
2097 if (coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF)) {
2098 v4l2_err(&ctx->dev->v4l2_dev,
2099 "CODA_COMMAND_SET_FRAME_BUF timeout\n");
2100 return -ETIMEDOUT;
2101 }
2102
2103 return 0;
2104 }
2105
coda_start_decoding(struct coda_ctx * ctx)2106 static int coda_start_decoding(struct coda_ctx *ctx)
2107 {
2108 struct coda_dev *dev = ctx->dev;
2109 int ret;
2110
2111 mutex_lock(&dev->coda_mutex);
2112 ret = __coda_start_decoding(ctx);
2113 mutex_unlock(&dev->coda_mutex);
2114
2115 return ret;
2116 }
2117
coda_prepare_decode(struct coda_ctx * ctx)2118 static int coda_prepare_decode(struct coda_ctx *ctx)
2119 {
2120 struct vb2_v4l2_buffer *dst_buf;
2121 struct coda_dev *dev = ctx->dev;
2122 struct coda_q_data *q_data_dst;
2123 struct coda_buffer_meta *meta;
2124 u32 rot_mode = 0;
2125 u32 reg_addr, reg_stride;
2126
2127 dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
2128 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
2129
2130 /* Try to copy source buffer contents into the bitstream ringbuffer */
2131 mutex_lock(&ctx->bitstream_mutex);
2132 coda_fill_bitstream(ctx, NULL);
2133 mutex_unlock(&ctx->bitstream_mutex);
2134
2135 if (coda_get_bitstream_payload(ctx) < 512 &&
2136 (!(ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG))) {
2137 coda_dbg(1, ctx, "bitstream payload: %d, skipping\n",
2138 coda_get_bitstream_payload(ctx));
2139 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
2140 return -EAGAIN;
2141 }
2142
2143 /* Run coda_start_decoding (again) if not yet initialized */
2144 if (!ctx->initialized) {
2145 int ret = __coda_start_decoding(ctx);
2146
2147 if (ret < 0) {
2148 v4l2_err(&dev->v4l2_dev, "failed to start decoding\n");
2149 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
2150 return -EAGAIN;
2151 } else {
2152 ctx->initialized = 1;
2153 }
2154 }
2155
2156 if (dev->devtype->product == CODA_960)
2157 coda_set_gdi_regs(ctx);
2158
2159 if (ctx->use_vdoa &&
2160 ctx->display_idx >= 0 &&
2161 ctx->display_idx < ctx->num_internal_frames) {
2162 vdoa_device_run(ctx->vdoa,
2163 vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0),
2164 ctx->internal_frames[ctx->display_idx].buf.paddr);
2165 } else {
2166 if (dev->devtype->product == CODA_960) {
2167 /*
2168 * The CODA960 seems to have an internal list of
2169 * buffers with 64 entries that includes the
2170 * registered frame buffers as well as the rotator
2171 * buffer output.
2172 *
2173 * ROT_INDEX needs to be < 0x40, but >
2174 * ctx->num_internal_frames.
2175 */
2176 coda_write(dev,
2177 CODA_MAX_FRAMEBUFFERS + dst_buf->vb2_buf.index,
2178 CODA9_CMD_DEC_PIC_ROT_INDEX);
2179
2180 reg_addr = CODA9_CMD_DEC_PIC_ROT_ADDR_Y;
2181 reg_stride = CODA9_CMD_DEC_PIC_ROT_STRIDE;
2182 } else {
2183 reg_addr = CODA_CMD_DEC_PIC_ROT_ADDR_Y;
2184 reg_stride = CODA_CMD_DEC_PIC_ROT_STRIDE;
2185 }
2186 coda_write_base(ctx, q_data_dst, dst_buf, reg_addr);
2187 coda_write(dev, q_data_dst->bytesperline, reg_stride);
2188
2189 rot_mode = CODA_ROT_MIR_ENABLE | ctx->params.rot_mode;
2190 }
2191
2192 coda_write(dev, rot_mode, CODA_CMD_DEC_PIC_ROT_MODE);
2193
2194 switch (dev->devtype->product) {
2195 case CODA_DX6:
2196 /* TBD */
2197 case CODA_HX4:
2198 case CODA_7541:
2199 coda_write(dev, CODA_PRE_SCAN_EN, CODA_CMD_DEC_PIC_OPTION);
2200 break;
2201 case CODA_960:
2202 /* 'hardcode to use interrupt disable mode'? */
2203 coda_write(dev, (1 << 10), CODA_CMD_DEC_PIC_OPTION);
2204 break;
2205 }
2206
2207 coda_write(dev, 0, CODA_CMD_DEC_PIC_SKIP_NUM);
2208
2209 coda_write(dev, 0, CODA_CMD_DEC_PIC_BB_START);
2210 coda_write(dev, 0, CODA_CMD_DEC_PIC_START_BYTE);
2211
2212 if (dev->devtype->product != CODA_DX6)
2213 coda_write(dev, ctx->iram_info.axi_sram_use,
2214 CODA7_REG_BIT_AXI_SRAM_USE);
2215
2216 spin_lock(&ctx->buffer_meta_lock);
2217 meta = list_first_entry_or_null(&ctx->buffer_meta_list,
2218 struct coda_buffer_meta, list);
2219
2220 if (meta && ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG) {
2221
2222 /* If this is the last buffer in the bitstream, add padding */
2223 if (meta->end == ctx->bitstream_fifo.kfifo.in) {
2224 static unsigned char buf[512];
2225 unsigned int pad;
2226
2227 /* Pad to multiple of 256 and then add 256 more */
2228 pad = ((0 - meta->end) & 0xff) + 256;
2229
2230 memset(buf, 0xff, sizeof(buf));
2231
2232 kfifo_in(&ctx->bitstream_fifo, buf, pad);
2233 }
2234 }
2235 spin_unlock(&ctx->buffer_meta_lock);
2236
2237 coda_kfifo_sync_to_device_full(ctx);
2238
2239 /* Clear decode success flag */
2240 coda_write(dev, 0, CODA_RET_DEC_PIC_SUCCESS);
2241
2242 /* Clear error return value */
2243 coda_write(dev, 0, CODA_RET_DEC_PIC_ERR_MB);
2244
2245 trace_coda_dec_pic_run(ctx, meta);
2246
2247 coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
2248
2249 return 0;
2250 }
2251
coda_finish_decode(struct coda_ctx * ctx)2252 static void coda_finish_decode(struct coda_ctx *ctx)
2253 {
2254 struct coda_dev *dev = ctx->dev;
2255 struct coda_q_data *q_data_src;
2256 struct coda_q_data *q_data_dst;
2257 struct vb2_v4l2_buffer *dst_buf;
2258 struct coda_buffer_meta *meta;
2259 int width, height;
2260 int decoded_idx;
2261 int display_idx;
2262 struct coda_internal_frame *decoded_frame = NULL;
2263 u32 src_fourcc;
2264 int success;
2265 u32 err_mb;
2266 int err_vdoa = 0;
2267 u32 val;
2268
2269 /* Update kfifo out pointer from coda bitstream read pointer */
2270 coda_kfifo_sync_from_device(ctx);
2271
2272 /*
2273 * in stream-end mode, the read pointer can overshoot the write pointer
2274 * by up to 512 bytes
2275 */
2276 if (ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) {
2277 if (coda_get_bitstream_payload(ctx) >= ctx->bitstream.size - 512)
2278 kfifo_init(&ctx->bitstream_fifo,
2279 ctx->bitstream.vaddr, ctx->bitstream.size);
2280 }
2281
2282 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
2283 src_fourcc = q_data_src->fourcc;
2284
2285 val = coda_read(dev, CODA_RET_DEC_PIC_SUCCESS);
2286 if (val != 1)
2287 pr_err("DEC_PIC_SUCCESS = %d\n", val);
2288
2289 success = val & 0x1;
2290 if (!success)
2291 v4l2_err(&dev->v4l2_dev, "decode failed\n");
2292
2293 if (src_fourcc == V4L2_PIX_FMT_H264) {
2294 if (val & (1 << 3))
2295 v4l2_err(&dev->v4l2_dev,
2296 "insufficient PS buffer space (%d bytes)\n",
2297 ctx->psbuf.size);
2298 if (val & (1 << 2))
2299 v4l2_err(&dev->v4l2_dev,
2300 "insufficient slice buffer space (%d bytes)\n",
2301 ctx->slicebuf.size);
2302 }
2303
2304 val = coda_read(dev, CODA_RET_DEC_PIC_SIZE);
2305 width = (val >> 16) & 0xffff;
2306 height = val & 0xffff;
2307
2308 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
2309
2310 /* frame crop information */
2311 if (src_fourcc == V4L2_PIX_FMT_H264) {
2312 u32 left_right;
2313 u32 top_bottom;
2314
2315 left_right = coda_read(dev, CODA_RET_DEC_PIC_CROP_LEFT_RIGHT);
2316 top_bottom = coda_read(dev, CODA_RET_DEC_PIC_CROP_TOP_BOTTOM);
2317
2318 if (left_right == 0xffffffff && top_bottom == 0xffffffff) {
2319 /* Keep current crop information */
2320 } else {
2321 struct v4l2_rect *rect = &q_data_dst->rect;
2322
2323 rect->left = left_right >> 16 & 0xffff;
2324 rect->top = top_bottom >> 16 & 0xffff;
2325 rect->width = width - rect->left -
2326 (left_right & 0xffff);
2327 rect->height = height - rect->top -
2328 (top_bottom & 0xffff);
2329 }
2330 } else {
2331 /* no cropping */
2332 }
2333
2334 err_mb = coda_read(dev, CODA_RET_DEC_PIC_ERR_MB);
2335 if (err_mb > 0)
2336 v4l2_err(&dev->v4l2_dev,
2337 "errors in %d macroblocks\n", err_mb);
2338
2339 if (dev->devtype->product == CODA_HX4 ||
2340 dev->devtype->product == CODA_7541) {
2341 val = coda_read(dev, CODA_RET_DEC_PIC_OPTION);
2342 if (val == 0) {
2343 /* not enough bitstream data */
2344 coda_dbg(1, ctx, "prescan failed: %d\n", val);
2345 ctx->hold = true;
2346 return;
2347 }
2348 }
2349
2350 /* Wait until the VDOA finished writing the previous display frame */
2351 if (ctx->use_vdoa &&
2352 ctx->display_idx >= 0 &&
2353 ctx->display_idx < ctx->num_internal_frames) {
2354 err_vdoa = vdoa_wait_for_completion(ctx->vdoa);
2355 }
2356
2357 ctx->frm_dis_flg = coda_read(dev,
2358 CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
2359
2360 /* The previous display frame was copied out and can be overwritten */
2361 if (ctx->display_idx >= 0 &&
2362 ctx->display_idx < ctx->num_internal_frames) {
2363 ctx->frm_dis_flg &= ~(1 << ctx->display_idx);
2364 coda_write(dev, ctx->frm_dis_flg,
2365 CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
2366 }
2367
2368 /*
2369 * The index of the last decoded frame, not necessarily in
2370 * display order, and the index of the next display frame.
2371 * The latter could have been decoded in a previous run.
2372 */
2373 decoded_idx = coda_read(dev, CODA_RET_DEC_PIC_CUR_IDX);
2374 display_idx = coda_read(dev, CODA_RET_DEC_PIC_FRAME_IDX);
2375
2376 if (decoded_idx == -1) {
2377 /* no frame was decoded, but we might have a display frame */
2378 if (display_idx >= 0 && display_idx < ctx->num_internal_frames)
2379 ctx->sequence_offset++;
2380 else if (ctx->display_idx < 0)
2381 ctx->hold = true;
2382 } else if (decoded_idx == -2) {
2383 if (ctx->display_idx >= 0 &&
2384 ctx->display_idx < ctx->num_internal_frames)
2385 ctx->sequence_offset++;
2386 /* no frame was decoded, we still return remaining buffers */
2387 } else if (decoded_idx < 0 || decoded_idx >= ctx->num_internal_frames) {
2388 v4l2_err(&dev->v4l2_dev,
2389 "decoded frame index out of range: %d\n", decoded_idx);
2390 } else {
2391 decoded_frame = &ctx->internal_frames[decoded_idx];
2392
2393 val = coda_read(dev, CODA_RET_DEC_PIC_FRAME_NUM);
2394 if (ctx->sequence_offset == -1)
2395 ctx->sequence_offset = val;
2396 val -= ctx->sequence_offset;
2397 spin_lock(&ctx->buffer_meta_lock);
2398 if (!list_empty(&ctx->buffer_meta_list)) {
2399 meta = list_first_entry(&ctx->buffer_meta_list,
2400 struct coda_buffer_meta, list);
2401 list_del(&meta->list);
2402 ctx->num_metas--;
2403 spin_unlock(&ctx->buffer_meta_lock);
2404 /*
2405 * Clamp counters to 16 bits for comparison, as the HW
2406 * counter rolls over at this point for h.264. This
2407 * may be different for other formats, but using 16 bits
2408 * should be enough to detect most errors and saves us
2409 * from doing different things based on the format.
2410 */
2411 if ((val & 0xffff) != (meta->sequence & 0xffff)) {
2412 v4l2_err(&dev->v4l2_dev,
2413 "sequence number mismatch (%d(%d) != %d)\n",
2414 val, ctx->sequence_offset,
2415 meta->sequence);
2416 }
2417 decoded_frame->meta = *meta;
2418 kfree(meta);
2419 } else {
2420 spin_unlock(&ctx->buffer_meta_lock);
2421 v4l2_err(&dev->v4l2_dev, "empty timestamp list!\n");
2422 memset(&decoded_frame->meta, 0,
2423 sizeof(struct coda_buffer_meta));
2424 decoded_frame->meta.sequence = val;
2425 decoded_frame->meta.last = false;
2426 ctx->sequence_offset++;
2427 }
2428
2429 trace_coda_dec_pic_done(ctx, &decoded_frame->meta);
2430
2431 val = coda_read(dev, CODA_RET_DEC_PIC_TYPE) & 0x7;
2432 decoded_frame->type = (val == 0) ? V4L2_BUF_FLAG_KEYFRAME :
2433 (val == 1) ? V4L2_BUF_FLAG_PFRAME :
2434 V4L2_BUF_FLAG_BFRAME;
2435
2436 decoded_frame->error = err_mb;
2437 }
2438
2439 if (display_idx == -1) {
2440 /*
2441 * no more frames to be decoded, but there could still
2442 * be rotator output to dequeue
2443 */
2444 ctx->hold = true;
2445 } else if (display_idx == -3) {
2446 /* possibly prescan failure */
2447 } else if (display_idx < 0 || display_idx >= ctx->num_internal_frames) {
2448 v4l2_err(&dev->v4l2_dev,
2449 "presentation frame index out of range: %d\n",
2450 display_idx);
2451 }
2452
2453 /* If a frame was copied out, return it */
2454 if (ctx->display_idx >= 0 &&
2455 ctx->display_idx < ctx->num_internal_frames) {
2456 struct coda_internal_frame *ready_frame;
2457
2458 ready_frame = &ctx->internal_frames[ctx->display_idx];
2459
2460 dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
2461 dst_buf->sequence = ctx->osequence++;
2462
2463 dst_buf->field = V4L2_FIELD_NONE;
2464 dst_buf->flags &= ~(V4L2_BUF_FLAG_KEYFRAME |
2465 V4L2_BUF_FLAG_PFRAME |
2466 V4L2_BUF_FLAG_BFRAME);
2467 dst_buf->flags |= ready_frame->type;
2468 meta = &ready_frame->meta;
2469 if (meta->last && !coda_reorder_enable(ctx)) {
2470 /*
2471 * If this was the last decoded frame, and reordering
2472 * is disabled, this will be the last display frame.
2473 */
2474 coda_dbg(1, ctx, "last meta, marking as last frame\n");
2475 dst_buf->flags |= V4L2_BUF_FLAG_LAST;
2476 } else if (ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG &&
2477 display_idx == -1) {
2478 /*
2479 * If there is no designated presentation frame anymore,
2480 * this frame has to be the last one.
2481 */
2482 coda_dbg(1, ctx,
2483 "no more frames to return, marking as last frame\n");
2484 dst_buf->flags |= V4L2_BUF_FLAG_LAST;
2485 }
2486 dst_buf->timecode = meta->timecode;
2487 dst_buf->vb2_buf.timestamp = meta->timestamp;
2488
2489 trace_coda_dec_rot_done(ctx, dst_buf, meta);
2490
2491 vb2_set_plane_payload(&dst_buf->vb2_buf, 0,
2492 q_data_dst->sizeimage);
2493
2494 if (ready_frame->error || err_vdoa)
2495 coda_m2m_buf_done(ctx, dst_buf, VB2_BUF_STATE_ERROR);
2496 else
2497 coda_m2m_buf_done(ctx, dst_buf, VB2_BUF_STATE_DONE);
2498
2499 if (decoded_frame) {
2500 coda_dbg(1, ctx, "job finished: decoded %c frame %u, returned %c frame %u (%u/%u)%s\n",
2501 coda_frame_type_char(decoded_frame->type),
2502 decoded_frame->meta.sequence,
2503 coda_frame_type_char(dst_buf->flags),
2504 ready_frame->meta.sequence,
2505 dst_buf->sequence, ctx->qsequence,
2506 (dst_buf->flags & V4L2_BUF_FLAG_LAST) ?
2507 " (last)" : "");
2508 } else {
2509 coda_dbg(1, ctx, "job finished: no frame decoded (%d), returned %c frame %u (%u/%u)%s\n",
2510 decoded_idx,
2511 coda_frame_type_char(dst_buf->flags),
2512 ready_frame->meta.sequence,
2513 dst_buf->sequence, ctx->qsequence,
2514 (dst_buf->flags & V4L2_BUF_FLAG_LAST) ?
2515 " (last)" : "");
2516 }
2517 } else {
2518 if (decoded_frame) {
2519 coda_dbg(1, ctx, "job finished: decoded %c frame %u, no frame returned (%d)\n",
2520 coda_frame_type_char(decoded_frame->type),
2521 decoded_frame->meta.sequence,
2522 ctx->display_idx);
2523 } else {
2524 coda_dbg(1, ctx, "job finished: no frame decoded (%d) or returned (%d)\n",
2525 decoded_idx, ctx->display_idx);
2526 }
2527 }
2528
2529 /* The rotator will copy the current display frame next time */
2530 ctx->display_idx = display_idx;
2531
2532 /*
2533 * The current decode run might have brought the bitstream fill level
2534 * below the size where we can start the next decode run. As userspace
2535 * might have filled the output queue completely and might thus be
2536 * blocked, we can't rely on the next qbuf to trigger the bitstream
2537 * refill. Check if we have data to refill the bitstream now.
2538 */
2539 mutex_lock(&ctx->bitstream_mutex);
2540 coda_fill_bitstream(ctx, NULL);
2541 mutex_unlock(&ctx->bitstream_mutex);
2542 }
2543
coda_decode_timeout(struct coda_ctx * ctx)2544 static void coda_decode_timeout(struct coda_ctx *ctx)
2545 {
2546 struct vb2_v4l2_buffer *dst_buf;
2547
2548 /*
2549 * For now this only handles the case where we would deadlock with
2550 * userspace, i.e. userspace issued DEC_CMD_STOP and waits for EOS,
2551 * but after a failed decode run we would hold the context and wait for
2552 * userspace to queue more buffers.
2553 */
2554 if (!(ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG))
2555 return;
2556
2557 dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
2558 dst_buf->sequence = ctx->qsequence - 1;
2559
2560 coda_m2m_buf_done(ctx, dst_buf, VB2_BUF_STATE_ERROR);
2561 }
2562
2563 const struct coda_context_ops coda_bit_decode_ops = {
2564 .queue_init = coda_decoder_queue_init,
2565 .reqbufs = coda_decoder_reqbufs,
2566 .start_streaming = coda_start_decoding,
2567 .prepare_run = coda_prepare_decode,
2568 .finish_run = coda_finish_decode,
2569 .run_timeout = coda_decode_timeout,
2570 .seq_init_work = coda_dec_seq_init_work,
2571 .seq_end_work = coda_seq_end_work,
2572 .release = coda_bit_release,
2573 };
2574
coda_irq_handler(int irq,void * data)2575 irqreturn_t coda_irq_handler(int irq, void *data)
2576 {
2577 struct coda_dev *dev = data;
2578 struct coda_ctx *ctx;
2579
2580 /* read status register to attend the IRQ */
2581 coda_read(dev, CODA_REG_BIT_INT_STATUS);
2582 coda_write(dev, 0, CODA_REG_BIT_INT_REASON);
2583 coda_write(dev, CODA_REG_BIT_INT_CLEAR_SET,
2584 CODA_REG_BIT_INT_CLEAR);
2585
2586 ctx = v4l2_m2m_get_curr_priv(dev->m2m_dev);
2587 if (ctx == NULL) {
2588 v4l2_err(&dev->v4l2_dev,
2589 "Instance released before the end of transaction\n");
2590 return IRQ_HANDLED;
2591 }
2592
2593 trace_coda_bit_done(ctx);
2594
2595 if (ctx->aborting) {
2596 coda_dbg(1, ctx, "task has been aborted\n");
2597 }
2598
2599 if (coda_isbusy(ctx->dev)) {
2600 coda_dbg(1, ctx, "coda is still busy!!!!\n");
2601 return IRQ_NONE;
2602 }
2603
2604 complete(&ctx->completion);
2605
2606 return IRQ_HANDLED;
2607 }
2608