1 /*
2 * Coda multi-standard codec IP - BIT processor functions
3 *
4 * Copyright (C) 2012 Vista Silicon S.L.
5 * Javier Martin, <javier.martin@vista-silicon.com>
6 * Xavier Duret
7 * Copyright (C) 2012-2014 Philipp Zabel, Pengutronix
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 */
14
15 #include <linux/clk.h>
16 #include <linux/irqreturn.h>
17 #include <linux/kernel.h>
18 #include <linux/log2.h>
19 #include <linux/platform_device.h>
20 #include <linux/reset.h>
21 #include <linux/slab.h>
22 #include <linux/videodev2.h>
23
24 #include <media/v4l2-common.h>
25 #include <media/v4l2-ctrls.h>
26 #include <media/v4l2-fh.h>
27 #include <media/v4l2-mem2mem.h>
28 #include <media/videobuf2-core.h>
29 #include <media/videobuf2-dma-contig.h>
30 #include <media/videobuf2-vmalloc.h>
31
32 #include "coda.h"
33 #define CREATE_TRACE_POINTS
34 #include "trace.h"
35
36 #define CODA_PARA_BUF_SIZE (10 * 1024)
37 #define CODA7_PS_BUF_SIZE 0x28000
38 #define CODA9_PS_SAVE_SIZE (512 * 1024)
39
40 #define CODA_DEFAULT_GAMMA 4096
41 #define CODA9_DEFAULT_GAMMA 24576 /* 0.75 * 32768 */
42
43 static void coda_free_bitstream_buffer(struct coda_ctx *ctx);
44
coda_is_initialized(struct coda_dev * dev)45 static inline int coda_is_initialized(struct coda_dev *dev)
46 {
47 return coda_read(dev, CODA_REG_BIT_CUR_PC) != 0;
48 }
49
coda_isbusy(struct coda_dev * dev)50 static inline unsigned long coda_isbusy(struct coda_dev *dev)
51 {
52 return coda_read(dev, CODA_REG_BIT_BUSY);
53 }
54
coda_wait_timeout(struct coda_dev * dev)55 static int coda_wait_timeout(struct coda_dev *dev)
56 {
57 unsigned long timeout = jiffies + msecs_to_jiffies(1000);
58
59 while (coda_isbusy(dev)) {
60 if (time_after(jiffies, timeout))
61 return -ETIMEDOUT;
62 }
63 return 0;
64 }
65
coda_command_async(struct coda_ctx * ctx,int cmd)66 static void coda_command_async(struct coda_ctx *ctx, int cmd)
67 {
68 struct coda_dev *dev = ctx->dev;
69
70 if (dev->devtype->product == CODA_960 ||
71 dev->devtype->product == CODA_7541) {
72 /* Restore context related registers to CODA */
73 coda_write(dev, ctx->bit_stream_param,
74 CODA_REG_BIT_BIT_STREAM_PARAM);
75 coda_write(dev, ctx->frm_dis_flg,
76 CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
77 coda_write(dev, ctx->frame_mem_ctrl,
78 CODA_REG_BIT_FRAME_MEM_CTRL);
79 coda_write(dev, ctx->workbuf.paddr, CODA_REG_BIT_WORK_BUF_ADDR);
80 }
81
82 if (dev->devtype->product == CODA_960) {
83 coda_write(dev, 1, CODA9_GDI_WPROT_ERR_CLR);
84 coda_write(dev, 0, CODA9_GDI_WPROT_RGN_EN);
85 }
86
87 coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
88
89 coda_write(dev, ctx->idx, CODA_REG_BIT_RUN_INDEX);
90 coda_write(dev, ctx->params.codec_mode, CODA_REG_BIT_RUN_COD_STD);
91 coda_write(dev, ctx->params.codec_mode_aux, CODA7_REG_BIT_RUN_AUX_STD);
92
93 trace_coda_bit_run(ctx, cmd);
94
95 coda_write(dev, cmd, CODA_REG_BIT_RUN_COMMAND);
96 }
97
coda_command_sync(struct coda_ctx * ctx,int cmd)98 static int coda_command_sync(struct coda_ctx *ctx, int cmd)
99 {
100 struct coda_dev *dev = ctx->dev;
101 int ret;
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 if (!dev->rstc)
118 return -ENOENT;
119
120 idx = coda_read(dev, CODA_REG_BIT_RUN_INDEX);
121
122 if (dev->devtype->product == CODA_960) {
123 timeout = jiffies + msecs_to_jiffies(100);
124 coda_write(dev, 0x11, CODA9_GDI_BUS_CTRL);
125 while (coda_read(dev, CODA9_GDI_BUS_STATUS) != 0x77) {
126 if (time_after(jiffies, timeout))
127 return -ETIME;
128 cpu_relax();
129 }
130 }
131
132 ret = reset_control_reset(dev->rstc);
133 if (ret < 0)
134 return ret;
135
136 if (dev->devtype->product == CODA_960)
137 coda_write(dev, 0x00, CODA9_GDI_BUS_CTRL);
138 coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
139 coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
140 ret = coda_wait_timeout(dev);
141 coda_write(dev, idx, CODA_REG_BIT_RUN_INDEX);
142
143 return ret;
144 }
145
coda_kfifo_sync_from_device(struct coda_ctx * ctx)146 static void coda_kfifo_sync_from_device(struct coda_ctx *ctx)
147 {
148 struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
149 struct coda_dev *dev = ctx->dev;
150 u32 rd_ptr;
151
152 rd_ptr = coda_read(dev, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
153 kfifo->out = (kfifo->in & ~kfifo->mask) |
154 (rd_ptr - ctx->bitstream.paddr);
155 if (kfifo->out > kfifo->in)
156 kfifo->out -= kfifo->mask + 1;
157 }
158
coda_kfifo_sync_to_device_full(struct coda_ctx * ctx)159 static void coda_kfifo_sync_to_device_full(struct coda_ctx *ctx)
160 {
161 struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
162 struct coda_dev *dev = ctx->dev;
163 u32 rd_ptr, wr_ptr;
164
165 rd_ptr = ctx->bitstream.paddr + (kfifo->out & kfifo->mask);
166 coda_write(dev, rd_ptr, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
167 wr_ptr = ctx->bitstream.paddr + (kfifo->in & kfifo->mask);
168 coda_write(dev, wr_ptr, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
169 }
170
coda_kfifo_sync_to_device_write(struct coda_ctx * ctx)171 static void coda_kfifo_sync_to_device_write(struct coda_ctx *ctx)
172 {
173 struct __kfifo *kfifo = &ctx->bitstream_fifo.kfifo;
174 struct coda_dev *dev = ctx->dev;
175 u32 wr_ptr;
176
177 wr_ptr = ctx->bitstream.paddr + (kfifo->in & kfifo->mask);
178 coda_write(dev, wr_ptr, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
179 }
180
coda_bitstream_queue(struct coda_ctx * ctx,struct vb2_buffer * src_buf)181 static int coda_bitstream_queue(struct coda_ctx *ctx,
182 struct vb2_buffer *src_buf)
183 {
184 u32 src_size = vb2_get_plane_payload(src_buf, 0);
185 u32 n;
186
187 n = kfifo_in(&ctx->bitstream_fifo, vb2_plane_vaddr(src_buf, 0),
188 src_size);
189 if (n < src_size)
190 return -ENOSPC;
191
192 src_buf->v4l2_buf.sequence = ctx->qsequence++;
193
194 return 0;
195 }
196
coda_bitstream_try_queue(struct coda_ctx * ctx,struct vb2_buffer * src_buf)197 static bool coda_bitstream_try_queue(struct coda_ctx *ctx,
198 struct vb2_buffer *src_buf)
199 {
200 int ret;
201
202 if (coda_get_bitstream_payload(ctx) +
203 vb2_get_plane_payload(src_buf, 0) + 512 >= ctx->bitstream.size)
204 return false;
205
206 if (vb2_plane_vaddr(src_buf, 0) == NULL) {
207 v4l2_err(&ctx->dev->v4l2_dev, "trying to queue empty buffer\n");
208 return true;
209 }
210
211 ret = coda_bitstream_queue(ctx, src_buf);
212 if (ret < 0) {
213 v4l2_err(&ctx->dev->v4l2_dev, "bitstream buffer overflow\n");
214 return false;
215 }
216 /* Sync read pointer to device */
217 if (ctx == v4l2_m2m_get_curr_priv(ctx->dev->m2m_dev))
218 coda_kfifo_sync_to_device_write(ctx);
219
220 ctx->hold = false;
221
222 return true;
223 }
224
coda_fill_bitstream(struct coda_ctx * ctx,bool streaming)225 void coda_fill_bitstream(struct coda_ctx *ctx, bool streaming)
226 {
227 struct vb2_buffer *src_buf;
228 struct coda_buffer_meta *meta;
229 u32 start;
230
231 while (v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) > 0) {
232 /*
233 * Only queue a single JPEG into the bitstream buffer, except
234 * to increase payload over 512 bytes or if in hold state.
235 */
236 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG &&
237 (coda_get_bitstream_payload(ctx) >= 512) && !ctx->hold)
238 break;
239
240 src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
241
242 /* Drop frames that do not start/end with a SOI/EOI markers */
243 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG &&
244 !coda_jpeg_check_buffer(ctx, src_buf)) {
245 v4l2_err(&ctx->dev->v4l2_dev,
246 "dropping invalid JPEG frame %d\n",
247 ctx->qsequence);
248 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
249 v4l2_m2m_buf_done(src_buf, streaming ?
250 VB2_BUF_STATE_ERROR :
251 VB2_BUF_STATE_QUEUED);
252 continue;
253 }
254
255 /* Buffer start position */
256 start = ctx->bitstream_fifo.kfifo.in &
257 ctx->bitstream_fifo.kfifo.mask;
258
259 if (coda_bitstream_try_queue(ctx, src_buf)) {
260 /*
261 * Source buffer is queued in the bitstream ringbuffer;
262 * queue the timestamp and mark source buffer as done
263 */
264 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
265
266 meta = kmalloc(sizeof(*meta), GFP_KERNEL);
267 if (meta) {
268 meta->sequence = src_buf->v4l2_buf.sequence;
269 meta->timecode = src_buf->v4l2_buf.timecode;
270 meta->timestamp = src_buf->v4l2_buf.timestamp;
271 meta->start = start;
272 meta->end = ctx->bitstream_fifo.kfifo.in &
273 ctx->bitstream_fifo.kfifo.mask;
274 list_add_tail(&meta->list,
275 &ctx->buffer_meta_list);
276
277 trace_coda_bit_queue(ctx, src_buf, meta);
278 }
279
280 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
281 } else {
282 break;
283 }
284 }
285 }
286
coda_bit_stream_end_flag(struct coda_ctx * ctx)287 void coda_bit_stream_end_flag(struct coda_ctx *ctx)
288 {
289 struct coda_dev *dev = ctx->dev;
290
291 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
292
293 /* If this context is currently running, update the hardware flag */
294 if ((dev->devtype->product == CODA_960) &&
295 coda_isbusy(dev) &&
296 (ctx->idx == coda_read(dev, CODA_REG_BIT_RUN_INDEX))) {
297 coda_write(dev, ctx->bit_stream_param,
298 CODA_REG_BIT_BIT_STREAM_PARAM);
299 }
300 }
301
coda_parabuf_write(struct coda_ctx * ctx,int index,u32 value)302 static void coda_parabuf_write(struct coda_ctx *ctx, int index, u32 value)
303 {
304 struct coda_dev *dev = ctx->dev;
305 u32 *p = ctx->parabuf.vaddr;
306
307 if (dev->devtype->product == CODA_DX6)
308 p[index] = value;
309 else
310 p[index ^ 1] = value;
311 }
312
coda_alloc_context_buf(struct coda_ctx * ctx,struct coda_aux_buf * buf,size_t size,const char * name)313 static inline int coda_alloc_context_buf(struct coda_ctx *ctx,
314 struct coda_aux_buf *buf, size_t size,
315 const char *name)
316 {
317 return coda_alloc_aux_buf(ctx->dev, buf, size, name, ctx->debugfs_entry);
318 }
319
320
coda_free_framebuffers(struct coda_ctx * ctx)321 static void coda_free_framebuffers(struct coda_ctx *ctx)
322 {
323 int i;
324
325 for (i = 0; i < CODA_MAX_FRAMEBUFFERS; i++)
326 coda_free_aux_buf(ctx->dev, &ctx->internal_frames[i]);
327 }
328
coda_alloc_framebuffers(struct coda_ctx * ctx,struct coda_q_data * q_data,u32 fourcc)329 static int coda_alloc_framebuffers(struct coda_ctx *ctx,
330 struct coda_q_data *q_data, u32 fourcc)
331 {
332 struct coda_dev *dev = ctx->dev;
333 int width, height;
334 dma_addr_t paddr;
335 int ysize;
336 int ret;
337 int i;
338
339 if (ctx->codec && (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 ||
340 ctx->codec->dst_fourcc == V4L2_PIX_FMT_H264)) {
341 width = round_up(q_data->width, 16);
342 height = round_up(q_data->height, 16);
343 } else {
344 width = round_up(q_data->width, 8);
345 height = q_data->height;
346 }
347 ysize = width * height;
348
349 /* Allocate frame buffers */
350 for (i = 0; i < ctx->num_internal_frames; i++) {
351 size_t size;
352 char *name;
353
354 size = ysize + ysize / 2;
355 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 &&
356 dev->devtype->product != CODA_DX6)
357 size += ysize / 4;
358 name = kasprintf(GFP_KERNEL, "fb%d", i);
359 ret = coda_alloc_context_buf(ctx, &ctx->internal_frames[i],
360 size, name);
361 kfree(name);
362 if (ret < 0) {
363 coda_free_framebuffers(ctx);
364 return ret;
365 }
366 }
367
368 /* Register frame buffers in the parameter buffer */
369 for (i = 0; i < ctx->num_internal_frames; i++) {
370 paddr = ctx->internal_frames[i].paddr;
371 /* Start addresses of Y, Cb, Cr planes */
372 coda_parabuf_write(ctx, i * 3 + 0, paddr);
373 coda_parabuf_write(ctx, i * 3 + 1, paddr + ysize);
374 coda_parabuf_write(ctx, i * 3 + 2, paddr + ysize + ysize / 4);
375
376 /* mvcol buffer for h.264 */
377 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 &&
378 dev->devtype->product != CODA_DX6)
379 coda_parabuf_write(ctx, 96 + i,
380 ctx->internal_frames[i].paddr +
381 ysize + ysize/4 + ysize/4);
382 }
383
384 /* mvcol buffer for mpeg4 */
385 if ((dev->devtype->product != CODA_DX6) &&
386 (ctx->codec->src_fourcc == V4L2_PIX_FMT_MPEG4))
387 coda_parabuf_write(ctx, 97, ctx->internal_frames[i].paddr +
388 ysize + ysize/4 + ysize/4);
389
390 return 0;
391 }
392
coda_free_context_buffers(struct coda_ctx * ctx)393 static void coda_free_context_buffers(struct coda_ctx *ctx)
394 {
395 struct coda_dev *dev = ctx->dev;
396
397 coda_free_aux_buf(dev, &ctx->slicebuf);
398 coda_free_aux_buf(dev, &ctx->psbuf);
399 if (dev->devtype->product != CODA_DX6)
400 coda_free_aux_buf(dev, &ctx->workbuf);
401 coda_free_aux_buf(dev, &ctx->parabuf);
402 }
403
coda_alloc_context_buffers(struct coda_ctx * ctx,struct coda_q_data * q_data)404 static int coda_alloc_context_buffers(struct coda_ctx *ctx,
405 struct coda_q_data *q_data)
406 {
407 struct coda_dev *dev = ctx->dev;
408 size_t size;
409 int ret;
410
411 if (!ctx->parabuf.vaddr) {
412 ret = coda_alloc_context_buf(ctx, &ctx->parabuf,
413 CODA_PARA_BUF_SIZE, "parabuf");
414 if (ret < 0)
415 return ret;
416 }
417
418 if (dev->devtype->product == CODA_DX6)
419 return 0;
420
421 if (!ctx->slicebuf.vaddr && q_data->fourcc == V4L2_PIX_FMT_H264) {
422 /* worst case slice size */
423 size = (DIV_ROUND_UP(q_data->width, 16) *
424 DIV_ROUND_UP(q_data->height, 16)) * 3200 / 8 + 512;
425 ret = coda_alloc_context_buf(ctx, &ctx->slicebuf, size,
426 "slicebuf");
427 if (ret < 0)
428 goto err;
429 }
430
431 if (!ctx->psbuf.vaddr && dev->devtype->product == CODA_7541) {
432 ret = coda_alloc_context_buf(ctx, &ctx->psbuf,
433 CODA7_PS_BUF_SIZE, "psbuf");
434 if (ret < 0)
435 goto err;
436 }
437
438 if (!ctx->workbuf.vaddr) {
439 size = dev->devtype->workbuf_size;
440 if (dev->devtype->product == CODA_960 &&
441 q_data->fourcc == V4L2_PIX_FMT_H264)
442 size += CODA9_PS_SAVE_SIZE;
443 ret = coda_alloc_context_buf(ctx, &ctx->workbuf, size,
444 "workbuf");
445 if (ret < 0)
446 goto err;
447 }
448
449 return 0;
450
451 err:
452 coda_free_context_buffers(ctx);
453 return ret;
454 }
455
coda_encode_header(struct coda_ctx * ctx,struct vb2_buffer * buf,int header_code,u8 * header,int * size)456 static int coda_encode_header(struct coda_ctx *ctx, struct vb2_buffer *buf,
457 int header_code, u8 *header, int *size)
458 {
459 struct coda_dev *dev = ctx->dev;
460 size_t bufsize;
461 int ret;
462 int i;
463
464 if (dev->devtype->product == CODA_960)
465 memset(vb2_plane_vaddr(buf, 0), 0, 64);
466
467 coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0),
468 CODA_CMD_ENC_HEADER_BB_START);
469 bufsize = vb2_plane_size(buf, 0);
470 if (dev->devtype->product == CODA_960)
471 bufsize /= 1024;
472 coda_write(dev, bufsize, CODA_CMD_ENC_HEADER_BB_SIZE);
473 coda_write(dev, header_code, CODA_CMD_ENC_HEADER_CODE);
474 ret = coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER);
475 if (ret < 0) {
476 v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n");
477 return ret;
478 }
479
480 if (dev->devtype->product == CODA_960) {
481 for (i = 63; i > 0; i--)
482 if (((char *)vb2_plane_vaddr(buf, 0))[i] != 0)
483 break;
484 *size = i + 1;
485 } else {
486 *size = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->reg_idx)) -
487 coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
488 }
489 memcpy(header, vb2_plane_vaddr(buf, 0), *size);
490
491 return 0;
492 }
493
coda_iram_alloc(struct coda_iram_info * iram,size_t size)494 static phys_addr_t coda_iram_alloc(struct coda_iram_info *iram, size_t size)
495 {
496 phys_addr_t ret;
497
498 size = round_up(size, 1024);
499 if (size > iram->remaining)
500 return 0;
501 iram->remaining -= size;
502
503 ret = iram->next_paddr;
504 iram->next_paddr += size;
505
506 return ret;
507 }
508
coda_setup_iram(struct coda_ctx * ctx)509 static void coda_setup_iram(struct coda_ctx *ctx)
510 {
511 struct coda_iram_info *iram_info = &ctx->iram_info;
512 struct coda_dev *dev = ctx->dev;
513 int w64, w128;
514 int mb_width;
515 int dbk_bits;
516 int bit_bits;
517 int ip_bits;
518
519 memset(iram_info, 0, sizeof(*iram_info));
520 iram_info->next_paddr = dev->iram.paddr;
521 iram_info->remaining = dev->iram.size;
522
523 if (!dev->iram.vaddr)
524 return;
525
526 switch (dev->devtype->product) {
527 case CODA_7541:
528 dbk_bits = CODA7_USE_HOST_DBK_ENABLE | CODA7_USE_DBK_ENABLE;
529 bit_bits = CODA7_USE_HOST_BIT_ENABLE | CODA7_USE_BIT_ENABLE;
530 ip_bits = CODA7_USE_HOST_IP_ENABLE | CODA7_USE_IP_ENABLE;
531 break;
532 case CODA_960:
533 dbk_bits = CODA9_USE_HOST_DBK_ENABLE | CODA9_USE_DBK_ENABLE;
534 bit_bits = CODA9_USE_HOST_BIT_ENABLE | CODA7_USE_BIT_ENABLE;
535 ip_bits = CODA9_USE_HOST_IP_ENABLE | CODA7_USE_IP_ENABLE;
536 break;
537 default: /* CODA_DX6 */
538 return;
539 }
540
541 if (ctx->inst_type == CODA_INST_ENCODER) {
542 struct coda_q_data *q_data_src;
543
544 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
545 mb_width = DIV_ROUND_UP(q_data_src->width, 16);
546 w128 = mb_width * 128;
547 w64 = mb_width * 64;
548
549 /* Prioritize in case IRAM is too small for everything */
550 if (dev->devtype->product == CODA_7541) {
551 iram_info->search_ram_size = round_up(mb_width * 16 *
552 36 + 2048, 1024);
553 iram_info->search_ram_paddr = coda_iram_alloc(iram_info,
554 iram_info->search_ram_size);
555 if (!iram_info->search_ram_paddr) {
556 pr_err("IRAM is smaller than the search ram size\n");
557 goto out;
558 }
559 iram_info->axi_sram_use |= CODA7_USE_HOST_ME_ENABLE |
560 CODA7_USE_ME_ENABLE;
561 }
562
563 /* Only H.264BP and H.263P3 are considered */
564 iram_info->buf_dbk_y_use = coda_iram_alloc(iram_info, w64);
565 iram_info->buf_dbk_c_use = coda_iram_alloc(iram_info, w64);
566 if (!iram_info->buf_dbk_c_use)
567 goto out;
568 iram_info->axi_sram_use |= dbk_bits;
569
570 iram_info->buf_bit_use = coda_iram_alloc(iram_info, w128);
571 if (!iram_info->buf_bit_use)
572 goto out;
573 iram_info->axi_sram_use |= bit_bits;
574
575 iram_info->buf_ip_ac_dc_use = coda_iram_alloc(iram_info, w128);
576 if (!iram_info->buf_ip_ac_dc_use)
577 goto out;
578 iram_info->axi_sram_use |= ip_bits;
579
580 /* OVL and BTP disabled for encoder */
581 } else if (ctx->inst_type == CODA_INST_DECODER) {
582 struct coda_q_data *q_data_dst;
583
584 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
585 mb_width = DIV_ROUND_UP(q_data_dst->width, 16);
586 w128 = mb_width * 128;
587
588 iram_info->buf_dbk_y_use = coda_iram_alloc(iram_info, w128);
589 iram_info->buf_dbk_c_use = coda_iram_alloc(iram_info, w128);
590 if (!iram_info->buf_dbk_c_use)
591 goto out;
592 iram_info->axi_sram_use |= dbk_bits;
593
594 iram_info->buf_bit_use = coda_iram_alloc(iram_info, w128);
595 if (!iram_info->buf_bit_use)
596 goto out;
597 iram_info->axi_sram_use |= bit_bits;
598
599 iram_info->buf_ip_ac_dc_use = coda_iram_alloc(iram_info, w128);
600 if (!iram_info->buf_ip_ac_dc_use)
601 goto out;
602 iram_info->axi_sram_use |= ip_bits;
603
604 /* OVL and BTP unused as there is no VC1 support yet */
605 }
606
607 out:
608 if (!(iram_info->axi_sram_use & CODA7_USE_HOST_IP_ENABLE))
609 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
610 "IRAM smaller than needed\n");
611
612 if (dev->devtype->product == CODA_7541) {
613 /* TODO - Enabling these causes picture errors on CODA7541 */
614 if (ctx->inst_type == CODA_INST_DECODER) {
615 /* fw 1.4.50 */
616 iram_info->axi_sram_use &= ~(CODA7_USE_HOST_IP_ENABLE |
617 CODA7_USE_IP_ENABLE);
618 } else {
619 /* fw 13.4.29 */
620 iram_info->axi_sram_use &= ~(CODA7_USE_HOST_IP_ENABLE |
621 CODA7_USE_HOST_DBK_ENABLE |
622 CODA7_USE_IP_ENABLE |
623 CODA7_USE_DBK_ENABLE);
624 }
625 }
626 }
627
628 static u32 coda_supported_firmwares[] = {
629 CODA_FIRMWARE_VERNUM(CODA_DX6, 2, 2, 5),
630 CODA_FIRMWARE_VERNUM(CODA_7541, 1, 4, 50),
631 CODA_FIRMWARE_VERNUM(CODA_960, 2, 1, 5),
632 };
633
coda_firmware_supported(u32 vernum)634 static bool coda_firmware_supported(u32 vernum)
635 {
636 int i;
637
638 for (i = 0; i < ARRAY_SIZE(coda_supported_firmwares); i++)
639 if (vernum == coda_supported_firmwares[i])
640 return true;
641 return false;
642 }
643
coda_check_firmware(struct coda_dev * dev)644 int coda_check_firmware(struct coda_dev *dev)
645 {
646 u16 product, major, minor, release;
647 u32 data;
648 int ret;
649
650 ret = clk_prepare_enable(dev->clk_per);
651 if (ret)
652 goto err_clk_per;
653
654 ret = clk_prepare_enable(dev->clk_ahb);
655 if (ret)
656 goto err_clk_ahb;
657
658 coda_write(dev, 0, CODA_CMD_FIRMWARE_VERNUM);
659 coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
660 coda_write(dev, 0, CODA_REG_BIT_RUN_INDEX);
661 coda_write(dev, 0, CODA_REG_BIT_RUN_COD_STD);
662 coda_write(dev, CODA_COMMAND_FIRMWARE_GET, CODA_REG_BIT_RUN_COMMAND);
663 if (coda_wait_timeout(dev)) {
664 v4l2_err(&dev->v4l2_dev, "firmware get command error\n");
665 ret = -EIO;
666 goto err_run_cmd;
667 }
668
669 if (dev->devtype->product == CODA_960) {
670 data = coda_read(dev, CODA9_CMD_FIRMWARE_CODE_REV);
671 v4l2_info(&dev->v4l2_dev, "Firmware code revision: %d\n",
672 data);
673 }
674
675 /* Check we are compatible with the loaded firmware */
676 data = coda_read(dev, CODA_CMD_FIRMWARE_VERNUM);
677 product = CODA_FIRMWARE_PRODUCT(data);
678 major = CODA_FIRMWARE_MAJOR(data);
679 minor = CODA_FIRMWARE_MINOR(data);
680 release = CODA_FIRMWARE_RELEASE(data);
681
682 clk_disable_unprepare(dev->clk_per);
683 clk_disable_unprepare(dev->clk_ahb);
684
685 if (product != dev->devtype->product) {
686 v4l2_err(&dev->v4l2_dev,
687 "Wrong firmware. Hw: %s, Fw: %s, Version: %u.%u.%u\n",
688 coda_product_name(dev->devtype->product),
689 coda_product_name(product), major, minor, release);
690 return -EINVAL;
691 }
692
693 v4l2_info(&dev->v4l2_dev, "Initialized %s.\n",
694 coda_product_name(product));
695
696 if (coda_firmware_supported(data)) {
697 v4l2_info(&dev->v4l2_dev, "Firmware version: %u.%u.%u\n",
698 major, minor, release);
699 } else {
700 v4l2_warn(&dev->v4l2_dev,
701 "Unsupported firmware version: %u.%u.%u\n",
702 major, minor, release);
703 }
704
705 return 0;
706
707 err_run_cmd:
708 clk_disable_unprepare(dev->clk_ahb);
709 err_clk_ahb:
710 clk_disable_unprepare(dev->clk_per);
711 err_clk_per:
712 return ret;
713 }
714
715 /*
716 * Encoder context operations
717 */
718
coda_encoder_reqbufs(struct coda_ctx * ctx,struct v4l2_requestbuffers * rb)719 static int coda_encoder_reqbufs(struct coda_ctx *ctx,
720 struct v4l2_requestbuffers *rb)
721 {
722 struct coda_q_data *q_data_src;
723 int ret;
724
725 if (rb->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
726 return 0;
727
728 if (rb->count) {
729 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
730 ret = coda_alloc_context_buffers(ctx, q_data_src);
731 if (ret < 0)
732 return ret;
733 } else {
734 coda_free_context_buffers(ctx);
735 }
736
737 return 0;
738 }
739
coda_start_encoding(struct coda_ctx * ctx)740 static int coda_start_encoding(struct coda_ctx *ctx)
741 {
742 struct coda_dev *dev = ctx->dev;
743 struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
744 struct coda_q_data *q_data_src, *q_data_dst;
745 u32 bitstream_buf, bitstream_size;
746 struct vb2_buffer *buf;
747 int gamma, ret, value;
748 u32 dst_fourcc;
749 int num_fb;
750 u32 stride;
751
752 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
753 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
754 dst_fourcc = q_data_dst->fourcc;
755
756 buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
757 bitstream_buf = vb2_dma_contig_plane_dma_addr(buf, 0);
758 bitstream_size = q_data_dst->sizeimage;
759
760 if (!coda_is_initialized(dev)) {
761 v4l2_err(v4l2_dev, "coda is not initialized.\n");
762 return -EFAULT;
763 }
764
765 if (dst_fourcc == V4L2_PIX_FMT_JPEG) {
766 if (!ctx->params.jpeg_qmat_tab[0])
767 ctx->params.jpeg_qmat_tab[0] = kmalloc(64, GFP_KERNEL);
768 if (!ctx->params.jpeg_qmat_tab[1])
769 ctx->params.jpeg_qmat_tab[1] = kmalloc(64, GFP_KERNEL);
770 coda_set_jpeg_compression_quality(ctx, ctx->params.jpeg_quality);
771 }
772
773 mutex_lock(&dev->coda_mutex);
774
775 coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
776 coda_write(dev, bitstream_buf, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
777 coda_write(dev, bitstream_buf, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
778 switch (dev->devtype->product) {
779 case CODA_DX6:
780 coda_write(dev, CODADX6_STREAM_BUF_DYNALLOC_EN |
781 CODADX6_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
782 break;
783 case CODA_960:
784 coda_write(dev, 0, CODA9_GDI_WPROT_RGN_EN);
785 /* fallthrough */
786 case CODA_7541:
787 coda_write(dev, CODA7_STREAM_BUF_DYNALLOC_EN |
788 CODA7_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
789 break;
790 }
791
792 ctx->frame_mem_ctrl &= ~CODA_FRAME_CHROMA_INTERLEAVE;
793 if (q_data_src->fourcc == V4L2_PIX_FMT_NV12)
794 ctx->frame_mem_ctrl |= CODA_FRAME_CHROMA_INTERLEAVE;
795 coda_write(dev, ctx->frame_mem_ctrl, CODA_REG_BIT_FRAME_MEM_CTRL);
796
797 if (dev->devtype->product == CODA_DX6) {
798 /* Configure the coda */
799 coda_write(dev, dev->iram.paddr,
800 CODADX6_REG_BIT_SEARCH_RAM_BASE_ADDR);
801 }
802
803 /* Could set rotation here if needed */
804 value = 0;
805 switch (dev->devtype->product) {
806 case CODA_DX6:
807 value = (q_data_src->width & CODADX6_PICWIDTH_MASK)
808 << CODADX6_PICWIDTH_OFFSET;
809 value |= (q_data_src->height & CODADX6_PICHEIGHT_MASK)
810 << CODA_PICHEIGHT_OFFSET;
811 break;
812 case CODA_7541:
813 if (dst_fourcc == V4L2_PIX_FMT_H264) {
814 value = (round_up(q_data_src->width, 16) &
815 CODA7_PICWIDTH_MASK) << CODA7_PICWIDTH_OFFSET;
816 value |= (round_up(q_data_src->height, 16) &
817 CODA7_PICHEIGHT_MASK) << CODA_PICHEIGHT_OFFSET;
818 break;
819 }
820 /* fallthrough */
821 case CODA_960:
822 value = (q_data_src->width & CODA7_PICWIDTH_MASK)
823 << CODA7_PICWIDTH_OFFSET;
824 value |= (q_data_src->height & CODA7_PICHEIGHT_MASK)
825 << CODA_PICHEIGHT_OFFSET;
826 }
827 coda_write(dev, value, CODA_CMD_ENC_SEQ_SRC_SIZE);
828 if (dst_fourcc == V4L2_PIX_FMT_JPEG)
829 ctx->params.framerate = 0;
830 coda_write(dev, ctx->params.framerate,
831 CODA_CMD_ENC_SEQ_SRC_F_RATE);
832
833 ctx->params.codec_mode = ctx->codec->mode;
834 switch (dst_fourcc) {
835 case V4L2_PIX_FMT_MPEG4:
836 if (dev->devtype->product == CODA_960)
837 coda_write(dev, CODA9_STD_MPEG4,
838 CODA_CMD_ENC_SEQ_COD_STD);
839 else
840 coda_write(dev, CODA_STD_MPEG4,
841 CODA_CMD_ENC_SEQ_COD_STD);
842 coda_write(dev, 0, CODA_CMD_ENC_SEQ_MP4_PARA);
843 break;
844 case V4L2_PIX_FMT_H264:
845 if (dev->devtype->product == CODA_960)
846 coda_write(dev, CODA9_STD_H264,
847 CODA_CMD_ENC_SEQ_COD_STD);
848 else
849 coda_write(dev, CODA_STD_H264,
850 CODA_CMD_ENC_SEQ_COD_STD);
851 if (ctx->params.h264_deblk_enabled) {
852 value = ((ctx->params.h264_deblk_alpha &
853 CODA_264PARAM_DEBLKFILTEROFFSETALPHA_MASK) <<
854 CODA_264PARAM_DEBLKFILTEROFFSETALPHA_OFFSET) |
855 ((ctx->params.h264_deblk_beta &
856 CODA_264PARAM_DEBLKFILTEROFFSETBETA_MASK) <<
857 CODA_264PARAM_DEBLKFILTEROFFSETBETA_OFFSET);
858 } else {
859 value = 1 << CODA_264PARAM_DISABLEDEBLK_OFFSET;
860 }
861 coda_write(dev, value, CODA_CMD_ENC_SEQ_264_PARA);
862 break;
863 case V4L2_PIX_FMT_JPEG:
864 coda_write(dev, 0, CODA_CMD_ENC_SEQ_JPG_PARA);
865 coda_write(dev, ctx->params.jpeg_restart_interval,
866 CODA_CMD_ENC_SEQ_JPG_RST_INTERVAL);
867 coda_write(dev, 0, CODA_CMD_ENC_SEQ_JPG_THUMB_EN);
868 coda_write(dev, 0, CODA_CMD_ENC_SEQ_JPG_THUMB_SIZE);
869 coda_write(dev, 0, CODA_CMD_ENC_SEQ_JPG_THUMB_OFFSET);
870
871 coda_jpeg_write_tables(ctx);
872 break;
873 default:
874 v4l2_err(v4l2_dev,
875 "dst format (0x%08x) invalid.\n", dst_fourcc);
876 ret = -EINVAL;
877 goto out;
878 }
879
880 /*
881 * slice mode and GOP size registers are used for thumb size/offset
882 * in JPEG mode
883 */
884 if (dst_fourcc != V4L2_PIX_FMT_JPEG) {
885 switch (ctx->params.slice_mode) {
886 case V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE:
887 value = 0;
888 break;
889 case V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB:
890 value = (ctx->params.slice_max_mb &
891 CODA_SLICING_SIZE_MASK)
892 << CODA_SLICING_SIZE_OFFSET;
893 value |= (1 & CODA_SLICING_UNIT_MASK)
894 << CODA_SLICING_UNIT_OFFSET;
895 value |= 1 & CODA_SLICING_MODE_MASK;
896 break;
897 case V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES:
898 value = (ctx->params.slice_max_bits &
899 CODA_SLICING_SIZE_MASK)
900 << CODA_SLICING_SIZE_OFFSET;
901 value |= (0 & CODA_SLICING_UNIT_MASK)
902 << CODA_SLICING_UNIT_OFFSET;
903 value |= 1 & CODA_SLICING_MODE_MASK;
904 break;
905 }
906 coda_write(dev, value, CODA_CMD_ENC_SEQ_SLICE_MODE);
907 value = ctx->params.gop_size & CODA_GOP_SIZE_MASK;
908 coda_write(dev, value, CODA_CMD_ENC_SEQ_GOP_SIZE);
909 }
910
911 if (ctx->params.bitrate) {
912 /* Rate control enabled */
913 value = (ctx->params.bitrate & CODA_RATECONTROL_BITRATE_MASK)
914 << CODA_RATECONTROL_BITRATE_OFFSET;
915 value |= 1 & CODA_RATECONTROL_ENABLE_MASK;
916 if (dev->devtype->product == CODA_960)
917 value |= BIT(31); /* disable autoskip */
918 } else {
919 value = 0;
920 }
921 coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_PARA);
922
923 coda_write(dev, 0, CODA_CMD_ENC_SEQ_RC_BUF_SIZE);
924 coda_write(dev, ctx->params.intra_refresh,
925 CODA_CMD_ENC_SEQ_INTRA_REFRESH);
926
927 coda_write(dev, bitstream_buf, CODA_CMD_ENC_SEQ_BB_START);
928 coda_write(dev, bitstream_size / 1024, CODA_CMD_ENC_SEQ_BB_SIZE);
929
930
931 value = 0;
932 if (dev->devtype->product == CODA_960)
933 gamma = CODA9_DEFAULT_GAMMA;
934 else
935 gamma = CODA_DEFAULT_GAMMA;
936 if (gamma > 0) {
937 coda_write(dev, (gamma & CODA_GAMMA_MASK) << CODA_GAMMA_OFFSET,
938 CODA_CMD_ENC_SEQ_RC_GAMMA);
939 }
940
941 if (ctx->params.h264_min_qp || ctx->params.h264_max_qp) {
942 coda_write(dev,
943 ctx->params.h264_min_qp << CODA_QPMIN_OFFSET |
944 ctx->params.h264_max_qp << CODA_QPMAX_OFFSET,
945 CODA_CMD_ENC_SEQ_RC_QP_MIN_MAX);
946 }
947 if (dev->devtype->product == CODA_960) {
948 if (ctx->params.h264_max_qp)
949 value |= 1 << CODA9_OPTION_RCQPMAX_OFFSET;
950 if (CODA_DEFAULT_GAMMA > 0)
951 value |= 1 << CODA9_OPTION_GAMMA_OFFSET;
952 } else {
953 if (CODA_DEFAULT_GAMMA > 0) {
954 if (dev->devtype->product == CODA_DX6)
955 value |= 1 << CODADX6_OPTION_GAMMA_OFFSET;
956 else
957 value |= 1 << CODA7_OPTION_GAMMA_OFFSET;
958 }
959 if (ctx->params.h264_min_qp)
960 value |= 1 << CODA7_OPTION_RCQPMIN_OFFSET;
961 if (ctx->params.h264_max_qp)
962 value |= 1 << CODA7_OPTION_RCQPMAX_OFFSET;
963 }
964 coda_write(dev, value, CODA_CMD_ENC_SEQ_OPTION);
965
966 coda_write(dev, 0, CODA_CMD_ENC_SEQ_RC_INTERVAL_MODE);
967
968 coda_setup_iram(ctx);
969
970 if (dst_fourcc == V4L2_PIX_FMT_H264) {
971 switch (dev->devtype->product) {
972 case CODA_DX6:
973 value = FMO_SLICE_SAVE_BUF_SIZE << 7;
974 coda_write(dev, value, CODADX6_CMD_ENC_SEQ_FMO);
975 break;
976 case CODA_7541:
977 coda_write(dev, ctx->iram_info.search_ram_paddr,
978 CODA7_CMD_ENC_SEQ_SEARCH_BASE);
979 coda_write(dev, ctx->iram_info.search_ram_size,
980 CODA7_CMD_ENC_SEQ_SEARCH_SIZE);
981 break;
982 case CODA_960:
983 coda_write(dev, 0, CODA9_CMD_ENC_SEQ_ME_OPTION);
984 coda_write(dev, 0, CODA9_CMD_ENC_SEQ_INTRA_WEIGHT);
985 }
986 }
987
988 ret = coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT);
989 if (ret < 0) {
990 v4l2_err(v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
991 goto out;
992 }
993
994 if (coda_read(dev, CODA_RET_ENC_SEQ_SUCCESS) == 0) {
995 v4l2_err(v4l2_dev, "CODA_COMMAND_SEQ_INIT failed\n");
996 ret = -EFAULT;
997 goto out;
998 }
999
1000 if (dst_fourcc != V4L2_PIX_FMT_JPEG) {
1001 if (dev->devtype->product == CODA_960)
1002 ctx->num_internal_frames = 4;
1003 else
1004 ctx->num_internal_frames = 2;
1005 ret = coda_alloc_framebuffers(ctx, q_data_src, dst_fourcc);
1006 if (ret < 0) {
1007 v4l2_err(v4l2_dev, "failed to allocate framebuffers\n");
1008 goto out;
1009 }
1010 num_fb = 2;
1011 stride = q_data_src->bytesperline;
1012 } else {
1013 ctx->num_internal_frames = 0;
1014 num_fb = 0;
1015 stride = 0;
1016 }
1017 coda_write(dev, num_fb, CODA_CMD_SET_FRAME_BUF_NUM);
1018 coda_write(dev, stride, CODA_CMD_SET_FRAME_BUF_STRIDE);
1019
1020 if (dev->devtype->product == CODA_7541) {
1021 coda_write(dev, q_data_src->bytesperline,
1022 CODA7_CMD_SET_FRAME_SOURCE_BUF_STRIDE);
1023 }
1024 if (dev->devtype->product != CODA_DX6) {
1025 coda_write(dev, ctx->iram_info.buf_bit_use,
1026 CODA7_CMD_SET_FRAME_AXI_BIT_ADDR);
1027 coda_write(dev, ctx->iram_info.buf_ip_ac_dc_use,
1028 CODA7_CMD_SET_FRAME_AXI_IPACDC_ADDR);
1029 coda_write(dev, ctx->iram_info.buf_dbk_y_use,
1030 CODA7_CMD_SET_FRAME_AXI_DBKY_ADDR);
1031 coda_write(dev, ctx->iram_info.buf_dbk_c_use,
1032 CODA7_CMD_SET_FRAME_AXI_DBKC_ADDR);
1033 coda_write(dev, ctx->iram_info.buf_ovl_use,
1034 CODA7_CMD_SET_FRAME_AXI_OVL_ADDR);
1035 if (dev->devtype->product == CODA_960) {
1036 coda_write(dev, ctx->iram_info.buf_btp_use,
1037 CODA9_CMD_SET_FRAME_AXI_BTP_ADDR);
1038
1039 /* FIXME */
1040 coda_write(dev, ctx->internal_frames[2].paddr,
1041 CODA9_CMD_SET_FRAME_SUBSAMP_A);
1042 coda_write(dev, ctx->internal_frames[3].paddr,
1043 CODA9_CMD_SET_FRAME_SUBSAMP_B);
1044 }
1045 }
1046
1047 ret = coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF);
1048 if (ret < 0) {
1049 v4l2_err(v4l2_dev, "CODA_COMMAND_SET_FRAME_BUF timeout\n");
1050 goto out;
1051 }
1052
1053 /* Save stream headers */
1054 buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
1055 switch (dst_fourcc) {
1056 case V4L2_PIX_FMT_H264:
1057 /*
1058 * Get SPS in the first frame and copy it to an
1059 * intermediate buffer.
1060 */
1061 ret = coda_encode_header(ctx, buf, CODA_HEADER_H264_SPS,
1062 &ctx->vpu_header[0][0],
1063 &ctx->vpu_header_size[0]);
1064 if (ret < 0)
1065 goto out;
1066
1067 /*
1068 * Get PPS in the first frame and copy it to an
1069 * intermediate buffer.
1070 */
1071 ret = coda_encode_header(ctx, buf, CODA_HEADER_H264_PPS,
1072 &ctx->vpu_header[1][0],
1073 &ctx->vpu_header_size[1]);
1074 if (ret < 0)
1075 goto out;
1076
1077 /*
1078 * Length of H.264 headers is variable and thus it might not be
1079 * aligned for the coda to append the encoded frame. In that is
1080 * the case a filler NAL must be added to header 2.
1081 */
1082 ctx->vpu_header_size[2] = coda_h264_padding(
1083 (ctx->vpu_header_size[0] +
1084 ctx->vpu_header_size[1]),
1085 ctx->vpu_header[2]);
1086 break;
1087 case V4L2_PIX_FMT_MPEG4:
1088 /*
1089 * Get VOS in the first frame and copy it to an
1090 * intermediate buffer
1091 */
1092 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VOS,
1093 &ctx->vpu_header[0][0],
1094 &ctx->vpu_header_size[0]);
1095 if (ret < 0)
1096 goto out;
1097
1098 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VIS,
1099 &ctx->vpu_header[1][0],
1100 &ctx->vpu_header_size[1]);
1101 if (ret < 0)
1102 goto out;
1103
1104 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VOL,
1105 &ctx->vpu_header[2][0],
1106 &ctx->vpu_header_size[2]);
1107 if (ret < 0)
1108 goto out;
1109 break;
1110 default:
1111 /* No more formats need to save headers at the moment */
1112 break;
1113 }
1114
1115 out:
1116 mutex_unlock(&dev->coda_mutex);
1117 return ret;
1118 }
1119
coda_prepare_encode(struct coda_ctx * ctx)1120 static int coda_prepare_encode(struct coda_ctx *ctx)
1121 {
1122 struct coda_q_data *q_data_src, *q_data_dst;
1123 struct vb2_buffer *src_buf, *dst_buf;
1124 struct coda_dev *dev = ctx->dev;
1125 int force_ipicture;
1126 int quant_param = 0;
1127 u32 pic_stream_buffer_addr, pic_stream_buffer_size;
1128 u32 rot_mode = 0;
1129 u32 dst_fourcc;
1130 u32 reg;
1131
1132 src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
1133 dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
1134 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1135 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1136 dst_fourcc = q_data_dst->fourcc;
1137
1138 src_buf->v4l2_buf.sequence = ctx->osequence;
1139 dst_buf->v4l2_buf.sequence = ctx->osequence;
1140 ctx->osequence++;
1141
1142 /*
1143 * Workaround coda firmware BUG that only marks the first
1144 * frame as IDR. This is a problem for some decoders that can't
1145 * recover when a frame is lost.
1146 */
1147 if (src_buf->v4l2_buf.sequence % ctx->params.gop_size) {
1148 src_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME;
1149 src_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME;
1150 } else {
1151 src_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
1152 src_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME;
1153 }
1154
1155 if (dev->devtype->product == CODA_960)
1156 coda_set_gdi_regs(ctx);
1157
1158 /*
1159 * Copy headers at the beginning of the first frame for H.264 only.
1160 * In MPEG4 they are already copied by the coda.
1161 */
1162 if (src_buf->v4l2_buf.sequence == 0) {
1163 pic_stream_buffer_addr =
1164 vb2_dma_contig_plane_dma_addr(dst_buf, 0) +
1165 ctx->vpu_header_size[0] +
1166 ctx->vpu_header_size[1] +
1167 ctx->vpu_header_size[2];
1168 pic_stream_buffer_size = q_data_dst->sizeimage -
1169 ctx->vpu_header_size[0] -
1170 ctx->vpu_header_size[1] -
1171 ctx->vpu_header_size[2];
1172 memcpy(vb2_plane_vaddr(dst_buf, 0),
1173 &ctx->vpu_header[0][0], ctx->vpu_header_size[0]);
1174 memcpy(vb2_plane_vaddr(dst_buf, 0) + ctx->vpu_header_size[0],
1175 &ctx->vpu_header[1][0], ctx->vpu_header_size[1]);
1176 memcpy(vb2_plane_vaddr(dst_buf, 0) + ctx->vpu_header_size[0] +
1177 ctx->vpu_header_size[1], &ctx->vpu_header[2][0],
1178 ctx->vpu_header_size[2]);
1179 } else {
1180 pic_stream_buffer_addr =
1181 vb2_dma_contig_plane_dma_addr(dst_buf, 0);
1182 pic_stream_buffer_size = q_data_dst->sizeimage;
1183 }
1184
1185 if (src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) {
1186 force_ipicture = 1;
1187 switch (dst_fourcc) {
1188 case V4L2_PIX_FMT_H264:
1189 quant_param = ctx->params.h264_intra_qp;
1190 break;
1191 case V4L2_PIX_FMT_MPEG4:
1192 quant_param = ctx->params.mpeg4_intra_qp;
1193 break;
1194 case V4L2_PIX_FMT_JPEG:
1195 quant_param = 30;
1196 break;
1197 default:
1198 v4l2_warn(&ctx->dev->v4l2_dev,
1199 "cannot set intra qp, fmt not supported\n");
1200 break;
1201 }
1202 } else {
1203 force_ipicture = 0;
1204 switch (dst_fourcc) {
1205 case V4L2_PIX_FMT_H264:
1206 quant_param = ctx->params.h264_inter_qp;
1207 break;
1208 case V4L2_PIX_FMT_MPEG4:
1209 quant_param = ctx->params.mpeg4_inter_qp;
1210 break;
1211 default:
1212 v4l2_warn(&ctx->dev->v4l2_dev,
1213 "cannot set inter qp, fmt not supported\n");
1214 break;
1215 }
1216 }
1217
1218 /* submit */
1219 if (ctx->params.rot_mode)
1220 rot_mode = CODA_ROT_MIR_ENABLE | ctx->params.rot_mode;
1221 coda_write(dev, rot_mode, CODA_CMD_ENC_PIC_ROT_MODE);
1222 coda_write(dev, quant_param, CODA_CMD_ENC_PIC_QS);
1223
1224 if (dev->devtype->product == CODA_960) {
1225 coda_write(dev, 4/*FIXME: 0*/, CODA9_CMD_ENC_PIC_SRC_INDEX);
1226 coda_write(dev, q_data_src->width, CODA9_CMD_ENC_PIC_SRC_STRIDE);
1227 coda_write(dev, 0, CODA9_CMD_ENC_PIC_SUB_FRAME_SYNC);
1228
1229 reg = CODA9_CMD_ENC_PIC_SRC_ADDR_Y;
1230 } else {
1231 reg = CODA_CMD_ENC_PIC_SRC_ADDR_Y;
1232 }
1233 coda_write_base(ctx, q_data_src, src_buf, reg);
1234
1235 coda_write(dev, force_ipicture << 1 & 0x2,
1236 CODA_CMD_ENC_PIC_OPTION);
1237
1238 coda_write(dev, pic_stream_buffer_addr, CODA_CMD_ENC_PIC_BB_START);
1239 coda_write(dev, pic_stream_buffer_size / 1024,
1240 CODA_CMD_ENC_PIC_BB_SIZE);
1241
1242 if (!ctx->streamon_out) {
1243 /* After streamoff on the output side, set stream end flag */
1244 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
1245 coda_write(dev, ctx->bit_stream_param,
1246 CODA_REG_BIT_BIT_STREAM_PARAM);
1247 }
1248
1249 if (dev->devtype->product != CODA_DX6)
1250 coda_write(dev, ctx->iram_info.axi_sram_use,
1251 CODA7_REG_BIT_AXI_SRAM_USE);
1252
1253 trace_coda_enc_pic_run(ctx, src_buf);
1254
1255 coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
1256
1257 return 0;
1258 }
1259
coda_finish_encode(struct coda_ctx * ctx)1260 static void coda_finish_encode(struct coda_ctx *ctx)
1261 {
1262 struct vb2_buffer *src_buf, *dst_buf;
1263 struct coda_dev *dev = ctx->dev;
1264 u32 wr_ptr, start_ptr;
1265
1266 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
1267 dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
1268
1269 trace_coda_enc_pic_done(ctx, dst_buf);
1270
1271 /* Get results from the coda */
1272 start_ptr = coda_read(dev, CODA_CMD_ENC_PIC_BB_START);
1273 wr_ptr = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
1274
1275 /* Calculate bytesused field */
1276 if (dst_buf->v4l2_buf.sequence == 0) {
1277 vb2_set_plane_payload(dst_buf, 0, wr_ptr - start_ptr +
1278 ctx->vpu_header_size[0] +
1279 ctx->vpu_header_size[1] +
1280 ctx->vpu_header_size[2]);
1281 } else {
1282 vb2_set_plane_payload(dst_buf, 0, wr_ptr - start_ptr);
1283 }
1284
1285 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, "frame size = %u\n",
1286 wr_ptr - start_ptr);
1287
1288 coda_read(dev, CODA_RET_ENC_PIC_SLICE_NUM);
1289 coda_read(dev, CODA_RET_ENC_PIC_FLAG);
1290
1291 if (coda_read(dev, CODA_RET_ENC_PIC_TYPE) == 0) {
1292 dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
1293 dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME;
1294 } else {
1295 dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME;
1296 dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME;
1297 }
1298
1299 dst_buf->v4l2_buf.timestamp = src_buf->v4l2_buf.timestamp;
1300 dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
1301 dst_buf->v4l2_buf.flags |=
1302 src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
1303 dst_buf->v4l2_buf.timecode = src_buf->v4l2_buf.timecode;
1304
1305 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
1306
1307 dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
1308 v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
1309
1310 ctx->gopcounter--;
1311 if (ctx->gopcounter < 0)
1312 ctx->gopcounter = ctx->params.gop_size - 1;
1313
1314 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1315 "job finished: encoding frame (%d) (%s)\n",
1316 dst_buf->v4l2_buf.sequence,
1317 (dst_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) ?
1318 "KEYFRAME" : "PFRAME");
1319 }
1320
coda_seq_end_work(struct work_struct * work)1321 static void coda_seq_end_work(struct work_struct *work)
1322 {
1323 struct coda_ctx *ctx = container_of(work, struct coda_ctx, seq_end_work);
1324 struct coda_dev *dev = ctx->dev;
1325
1326 mutex_lock(&ctx->buffer_mutex);
1327 mutex_lock(&dev->coda_mutex);
1328
1329 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1330 "%d: %s: sent command 'SEQ_END' to coda\n", ctx->idx,
1331 __func__);
1332 if (coda_command_sync(ctx, CODA_COMMAND_SEQ_END)) {
1333 v4l2_err(&dev->v4l2_dev,
1334 "CODA_COMMAND_SEQ_END failed\n");
1335 }
1336
1337 kfifo_init(&ctx->bitstream_fifo,
1338 ctx->bitstream.vaddr, ctx->bitstream.size);
1339
1340 coda_free_framebuffers(ctx);
1341
1342 mutex_unlock(&dev->coda_mutex);
1343 mutex_unlock(&ctx->buffer_mutex);
1344 }
1345
coda_bit_release(struct coda_ctx * ctx)1346 static void coda_bit_release(struct coda_ctx *ctx)
1347 {
1348 mutex_lock(&ctx->buffer_mutex);
1349 coda_free_framebuffers(ctx);
1350 coda_free_context_buffers(ctx);
1351 coda_free_bitstream_buffer(ctx);
1352 mutex_unlock(&ctx->buffer_mutex);
1353 }
1354
1355 const struct coda_context_ops coda_bit_encode_ops = {
1356 .queue_init = coda_encoder_queue_init,
1357 .reqbufs = coda_encoder_reqbufs,
1358 .start_streaming = coda_start_encoding,
1359 .prepare_run = coda_prepare_encode,
1360 .finish_run = coda_finish_encode,
1361 .seq_end_work = coda_seq_end_work,
1362 .release = coda_bit_release,
1363 };
1364
1365 /*
1366 * Decoder context operations
1367 */
1368
coda_alloc_bitstream_buffer(struct coda_ctx * ctx,struct coda_q_data * q_data)1369 static int coda_alloc_bitstream_buffer(struct coda_ctx *ctx,
1370 struct coda_q_data *q_data)
1371 {
1372 if (ctx->bitstream.vaddr)
1373 return 0;
1374
1375 ctx->bitstream.size = roundup_pow_of_two(q_data->sizeimage * 2);
1376 ctx->bitstream.vaddr = dma_alloc_writecombine(
1377 &ctx->dev->plat_dev->dev, ctx->bitstream.size,
1378 &ctx->bitstream.paddr, GFP_KERNEL);
1379 if (!ctx->bitstream.vaddr) {
1380 v4l2_err(&ctx->dev->v4l2_dev,
1381 "failed to allocate bitstream ringbuffer");
1382 return -ENOMEM;
1383 }
1384 kfifo_init(&ctx->bitstream_fifo,
1385 ctx->bitstream.vaddr, ctx->bitstream.size);
1386
1387 return 0;
1388 }
1389
coda_free_bitstream_buffer(struct coda_ctx * ctx)1390 static void coda_free_bitstream_buffer(struct coda_ctx *ctx)
1391 {
1392 if (ctx->bitstream.vaddr == NULL)
1393 return;
1394
1395 dma_free_writecombine(&ctx->dev->plat_dev->dev, ctx->bitstream.size,
1396 ctx->bitstream.vaddr, ctx->bitstream.paddr);
1397 ctx->bitstream.vaddr = NULL;
1398 kfifo_init(&ctx->bitstream_fifo, NULL, 0);
1399 }
1400
coda_decoder_reqbufs(struct coda_ctx * ctx,struct v4l2_requestbuffers * rb)1401 static int coda_decoder_reqbufs(struct coda_ctx *ctx,
1402 struct v4l2_requestbuffers *rb)
1403 {
1404 struct coda_q_data *q_data_src;
1405 int ret;
1406
1407 if (rb->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1408 return 0;
1409
1410 if (rb->count) {
1411 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1412 ret = coda_alloc_context_buffers(ctx, q_data_src);
1413 if (ret < 0)
1414 return ret;
1415 ret = coda_alloc_bitstream_buffer(ctx, q_data_src);
1416 if (ret < 0) {
1417 coda_free_context_buffers(ctx);
1418 return ret;
1419 }
1420 } else {
1421 coda_free_bitstream_buffer(ctx);
1422 coda_free_context_buffers(ctx);
1423 }
1424
1425 return 0;
1426 }
1427
__coda_start_decoding(struct coda_ctx * ctx)1428 static int __coda_start_decoding(struct coda_ctx *ctx)
1429 {
1430 struct coda_q_data *q_data_src, *q_data_dst;
1431 u32 bitstream_buf, bitstream_size;
1432 struct coda_dev *dev = ctx->dev;
1433 int width, height;
1434 u32 src_fourcc, dst_fourcc;
1435 u32 val;
1436 int ret;
1437
1438 /* Start decoding */
1439 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1440 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1441 bitstream_buf = ctx->bitstream.paddr;
1442 bitstream_size = ctx->bitstream.size;
1443 src_fourcc = q_data_src->fourcc;
1444 dst_fourcc = q_data_dst->fourcc;
1445
1446 coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
1447
1448 /* Update coda bitstream read and write pointers from kfifo */
1449 coda_kfifo_sync_to_device_full(ctx);
1450
1451 ctx->frame_mem_ctrl &= ~CODA_FRAME_CHROMA_INTERLEAVE;
1452 if (dst_fourcc == V4L2_PIX_FMT_NV12)
1453 ctx->frame_mem_ctrl |= CODA_FRAME_CHROMA_INTERLEAVE;
1454 coda_write(dev, ctx->frame_mem_ctrl, CODA_REG_BIT_FRAME_MEM_CTRL);
1455
1456 ctx->display_idx = -1;
1457 ctx->frm_dis_flg = 0;
1458 coda_write(dev, 0, CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
1459
1460 coda_write(dev, CODA_BIT_DEC_SEQ_INIT_ESCAPE,
1461 CODA_REG_BIT_BIT_STREAM_PARAM);
1462
1463 coda_write(dev, bitstream_buf, CODA_CMD_DEC_SEQ_BB_START);
1464 coda_write(dev, bitstream_size / 1024, CODA_CMD_DEC_SEQ_BB_SIZE);
1465 val = 0;
1466 if ((dev->devtype->product == CODA_7541) ||
1467 (dev->devtype->product == CODA_960))
1468 val |= CODA_REORDER_ENABLE;
1469 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG)
1470 val |= CODA_NO_INT_ENABLE;
1471 coda_write(dev, val, CODA_CMD_DEC_SEQ_OPTION);
1472
1473 ctx->params.codec_mode = ctx->codec->mode;
1474 if (dev->devtype->product == CODA_960 &&
1475 src_fourcc == V4L2_PIX_FMT_MPEG4)
1476 ctx->params.codec_mode_aux = CODA_MP4_AUX_MPEG4;
1477 else
1478 ctx->params.codec_mode_aux = 0;
1479 if (src_fourcc == V4L2_PIX_FMT_H264) {
1480 if (dev->devtype->product == CODA_7541) {
1481 coda_write(dev, ctx->psbuf.paddr,
1482 CODA_CMD_DEC_SEQ_PS_BB_START);
1483 coda_write(dev, (CODA7_PS_BUF_SIZE / 1024),
1484 CODA_CMD_DEC_SEQ_PS_BB_SIZE);
1485 }
1486 if (dev->devtype->product == CODA_960) {
1487 coda_write(dev, 0, CODA_CMD_DEC_SEQ_X264_MV_EN);
1488 coda_write(dev, 512, CODA_CMD_DEC_SEQ_SPP_CHUNK_SIZE);
1489 }
1490 }
1491 if (dev->devtype->product != CODA_960)
1492 coda_write(dev, 0, CODA_CMD_DEC_SEQ_SRC_SIZE);
1493
1494 if (coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT)) {
1495 v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
1496 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
1497 return -ETIMEDOUT;
1498 }
1499
1500 /* Update kfifo out pointer from coda bitstream read pointer */
1501 coda_kfifo_sync_from_device(ctx);
1502
1503 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
1504
1505 if (coda_read(dev, CODA_RET_DEC_SEQ_SUCCESS) == 0) {
1506 v4l2_err(&dev->v4l2_dev,
1507 "CODA_COMMAND_SEQ_INIT failed, error code = %d\n",
1508 coda_read(dev, CODA_RET_DEC_SEQ_ERR_REASON));
1509 return -EAGAIN;
1510 }
1511
1512 val = coda_read(dev, CODA_RET_DEC_SEQ_SRC_SIZE);
1513 if (dev->devtype->product == CODA_DX6) {
1514 width = (val >> CODADX6_PICWIDTH_OFFSET) & CODADX6_PICWIDTH_MASK;
1515 height = val & CODADX6_PICHEIGHT_MASK;
1516 } else {
1517 width = (val >> CODA7_PICWIDTH_OFFSET) & CODA7_PICWIDTH_MASK;
1518 height = val & CODA7_PICHEIGHT_MASK;
1519 }
1520
1521 if (width > q_data_dst->bytesperline || height > q_data_dst->height) {
1522 v4l2_err(&dev->v4l2_dev, "stream is %dx%d, not %dx%d\n",
1523 width, height, q_data_dst->bytesperline,
1524 q_data_dst->height);
1525 return -EINVAL;
1526 }
1527
1528 width = round_up(width, 16);
1529 height = round_up(height, 16);
1530
1531 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "%s instance %d now: %dx%d\n",
1532 __func__, ctx->idx, width, height);
1533
1534 ctx->num_internal_frames = coda_read(dev, CODA_RET_DEC_SEQ_FRAME_NEED);
1535 if (ctx->num_internal_frames > CODA_MAX_FRAMEBUFFERS) {
1536 v4l2_err(&dev->v4l2_dev,
1537 "not enough framebuffers to decode (%d < %d)\n",
1538 CODA_MAX_FRAMEBUFFERS, ctx->num_internal_frames);
1539 return -EINVAL;
1540 }
1541
1542 if (src_fourcc == V4L2_PIX_FMT_H264) {
1543 u32 left_right;
1544 u32 top_bottom;
1545
1546 left_right = coda_read(dev, CODA_RET_DEC_SEQ_CROP_LEFT_RIGHT);
1547 top_bottom = coda_read(dev, CODA_RET_DEC_SEQ_CROP_TOP_BOTTOM);
1548
1549 q_data_dst->rect.left = (left_right >> 10) & 0x3ff;
1550 q_data_dst->rect.top = (top_bottom >> 10) & 0x3ff;
1551 q_data_dst->rect.width = width - q_data_dst->rect.left -
1552 (left_right & 0x3ff);
1553 q_data_dst->rect.height = height - q_data_dst->rect.top -
1554 (top_bottom & 0x3ff);
1555 }
1556
1557 ret = coda_alloc_framebuffers(ctx, q_data_dst, src_fourcc);
1558 if (ret < 0) {
1559 v4l2_err(&dev->v4l2_dev, "failed to allocate framebuffers\n");
1560 return ret;
1561 }
1562
1563 /* Tell the decoder how many frame buffers we allocated. */
1564 coda_write(dev, ctx->num_internal_frames, CODA_CMD_SET_FRAME_BUF_NUM);
1565 coda_write(dev, width, CODA_CMD_SET_FRAME_BUF_STRIDE);
1566
1567 if (dev->devtype->product != CODA_DX6) {
1568 /* Set secondary AXI IRAM */
1569 coda_setup_iram(ctx);
1570
1571 coda_write(dev, ctx->iram_info.buf_bit_use,
1572 CODA7_CMD_SET_FRAME_AXI_BIT_ADDR);
1573 coda_write(dev, ctx->iram_info.buf_ip_ac_dc_use,
1574 CODA7_CMD_SET_FRAME_AXI_IPACDC_ADDR);
1575 coda_write(dev, ctx->iram_info.buf_dbk_y_use,
1576 CODA7_CMD_SET_FRAME_AXI_DBKY_ADDR);
1577 coda_write(dev, ctx->iram_info.buf_dbk_c_use,
1578 CODA7_CMD_SET_FRAME_AXI_DBKC_ADDR);
1579 coda_write(dev, ctx->iram_info.buf_ovl_use,
1580 CODA7_CMD_SET_FRAME_AXI_OVL_ADDR);
1581 if (dev->devtype->product == CODA_960)
1582 coda_write(dev, ctx->iram_info.buf_btp_use,
1583 CODA9_CMD_SET_FRAME_AXI_BTP_ADDR);
1584 }
1585
1586 if (dev->devtype->product == CODA_960) {
1587 int cbb_size, crb_size;
1588
1589 coda_write(dev, -1, CODA9_CMD_SET_FRAME_DELAY);
1590 /* Luma 2x0 page, 2x6 cache, chroma 2x0 page, 2x4 cache size */
1591 coda_write(dev, 0x20262024, CODA9_CMD_SET_FRAME_CACHE_SIZE);
1592
1593 if (dst_fourcc == V4L2_PIX_FMT_NV12) {
1594 cbb_size = 0;
1595 crb_size = 16;
1596 } else {
1597 cbb_size = 8;
1598 crb_size = 8;
1599 }
1600 coda_write(dev, 2 << CODA9_CACHE_PAGEMERGE_OFFSET |
1601 32 << CODA9_CACHE_LUMA_BUFFER_SIZE_OFFSET |
1602 cbb_size << CODA9_CACHE_CB_BUFFER_SIZE_OFFSET |
1603 crb_size << CODA9_CACHE_CR_BUFFER_SIZE_OFFSET,
1604 CODA9_CMD_SET_FRAME_CACHE_CONFIG);
1605 }
1606
1607 if (src_fourcc == V4L2_PIX_FMT_H264) {
1608 coda_write(dev, ctx->slicebuf.paddr,
1609 CODA_CMD_SET_FRAME_SLICE_BB_START);
1610 coda_write(dev, ctx->slicebuf.size / 1024,
1611 CODA_CMD_SET_FRAME_SLICE_BB_SIZE);
1612 }
1613
1614 if (dev->devtype->product == CODA_7541) {
1615 int max_mb_x = 1920 / 16;
1616 int max_mb_y = 1088 / 16;
1617 int max_mb_num = max_mb_x * max_mb_y;
1618
1619 coda_write(dev, max_mb_num << 16 | max_mb_x << 8 | max_mb_y,
1620 CODA7_CMD_SET_FRAME_MAX_DEC_SIZE);
1621 } else if (dev->devtype->product == CODA_960) {
1622 int max_mb_x = 1920 / 16;
1623 int max_mb_y = 1088 / 16;
1624 int max_mb_num = max_mb_x * max_mb_y;
1625
1626 coda_write(dev, max_mb_num << 16 | max_mb_x << 8 | max_mb_y,
1627 CODA9_CMD_SET_FRAME_MAX_DEC_SIZE);
1628 }
1629
1630 if (coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF)) {
1631 v4l2_err(&ctx->dev->v4l2_dev,
1632 "CODA_COMMAND_SET_FRAME_BUF timeout\n");
1633 return -ETIMEDOUT;
1634 }
1635
1636 return 0;
1637 }
1638
coda_start_decoding(struct coda_ctx * ctx)1639 static int coda_start_decoding(struct coda_ctx *ctx)
1640 {
1641 struct coda_dev *dev = ctx->dev;
1642 int ret;
1643
1644 mutex_lock(&dev->coda_mutex);
1645 ret = __coda_start_decoding(ctx);
1646 mutex_unlock(&dev->coda_mutex);
1647
1648 return ret;
1649 }
1650
coda_prepare_decode(struct coda_ctx * ctx)1651 static int coda_prepare_decode(struct coda_ctx *ctx)
1652 {
1653 struct vb2_buffer *dst_buf;
1654 struct coda_dev *dev = ctx->dev;
1655 struct coda_q_data *q_data_dst;
1656 struct coda_buffer_meta *meta;
1657 u32 reg_addr, reg_stride;
1658
1659 dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
1660 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1661
1662 /* Try to copy source buffer contents into the bitstream ringbuffer */
1663 mutex_lock(&ctx->bitstream_mutex);
1664 coda_fill_bitstream(ctx, true);
1665 mutex_unlock(&ctx->bitstream_mutex);
1666
1667 if (coda_get_bitstream_payload(ctx) < 512 &&
1668 (!(ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG))) {
1669 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1670 "bitstream payload: %d, skipping\n",
1671 coda_get_bitstream_payload(ctx));
1672 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
1673 return -EAGAIN;
1674 }
1675
1676 /* Run coda_start_decoding (again) if not yet initialized */
1677 if (!ctx->initialized) {
1678 int ret = __coda_start_decoding(ctx);
1679
1680 if (ret < 0) {
1681 v4l2_err(&dev->v4l2_dev, "failed to start decoding\n");
1682 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
1683 return -EAGAIN;
1684 } else {
1685 ctx->initialized = 1;
1686 }
1687 }
1688
1689 if (dev->devtype->product == CODA_960)
1690 coda_set_gdi_regs(ctx);
1691
1692 if (dev->devtype->product == CODA_960) {
1693 /*
1694 * The CODA960 seems to have an internal list of buffers with
1695 * 64 entries that includes the registered frame buffers as
1696 * well as the rotator buffer output.
1697 * ROT_INDEX needs to be < 0x40, but > ctx->num_internal_frames.
1698 */
1699 coda_write(dev, CODA_MAX_FRAMEBUFFERS + dst_buf->v4l2_buf.index,
1700 CODA9_CMD_DEC_PIC_ROT_INDEX);
1701
1702 reg_addr = CODA9_CMD_DEC_PIC_ROT_ADDR_Y;
1703 reg_stride = CODA9_CMD_DEC_PIC_ROT_STRIDE;
1704 } else {
1705 reg_addr = CODA_CMD_DEC_PIC_ROT_ADDR_Y;
1706 reg_stride = CODA_CMD_DEC_PIC_ROT_STRIDE;
1707 }
1708 coda_write_base(ctx, q_data_dst, dst_buf, reg_addr);
1709 coda_write(dev, q_data_dst->bytesperline, reg_stride);
1710
1711 coda_write(dev, CODA_ROT_MIR_ENABLE | ctx->params.rot_mode,
1712 CODA_CMD_DEC_PIC_ROT_MODE);
1713
1714 switch (dev->devtype->product) {
1715 case CODA_DX6:
1716 /* TBD */
1717 case CODA_7541:
1718 coda_write(dev, CODA_PRE_SCAN_EN, CODA_CMD_DEC_PIC_OPTION);
1719 break;
1720 case CODA_960:
1721 /* 'hardcode to use interrupt disable mode'? */
1722 coda_write(dev, (1 << 10), CODA_CMD_DEC_PIC_OPTION);
1723 break;
1724 }
1725
1726 coda_write(dev, 0, CODA_CMD_DEC_PIC_SKIP_NUM);
1727
1728 coda_write(dev, 0, CODA_CMD_DEC_PIC_BB_START);
1729 coda_write(dev, 0, CODA_CMD_DEC_PIC_START_BYTE);
1730
1731 if (dev->devtype->product != CODA_DX6)
1732 coda_write(dev, ctx->iram_info.axi_sram_use,
1733 CODA7_REG_BIT_AXI_SRAM_USE);
1734
1735 meta = list_first_entry_or_null(&ctx->buffer_meta_list,
1736 struct coda_buffer_meta, list);
1737
1738 if (meta && ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG) {
1739
1740 /* If this is the last buffer in the bitstream, add padding */
1741 if (meta->end == (ctx->bitstream_fifo.kfifo.in &
1742 ctx->bitstream_fifo.kfifo.mask)) {
1743 static unsigned char buf[512];
1744 unsigned int pad;
1745
1746 /* Pad to multiple of 256 and then add 256 more */
1747 pad = ((0 - meta->end) & 0xff) + 256;
1748
1749 memset(buf, 0xff, sizeof(buf));
1750
1751 kfifo_in(&ctx->bitstream_fifo, buf, pad);
1752 }
1753 }
1754
1755 coda_kfifo_sync_to_device_full(ctx);
1756
1757 /* Clear decode success flag */
1758 coda_write(dev, 0, CODA_RET_DEC_PIC_SUCCESS);
1759
1760 trace_coda_dec_pic_run(ctx, meta);
1761
1762 coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
1763
1764 return 0;
1765 }
1766
coda_finish_decode(struct coda_ctx * ctx)1767 static void coda_finish_decode(struct coda_ctx *ctx)
1768 {
1769 struct coda_dev *dev = ctx->dev;
1770 struct coda_q_data *q_data_src;
1771 struct coda_q_data *q_data_dst;
1772 struct vb2_buffer *dst_buf;
1773 struct coda_buffer_meta *meta;
1774 unsigned long payload;
1775 int width, height;
1776 int decoded_idx;
1777 int display_idx;
1778 u32 src_fourcc;
1779 int success;
1780 u32 err_mb;
1781 u32 val;
1782
1783 /* Update kfifo out pointer from coda bitstream read pointer */
1784 coda_kfifo_sync_from_device(ctx);
1785
1786 /*
1787 * in stream-end mode, the read pointer can overshoot the write pointer
1788 * by up to 512 bytes
1789 */
1790 if (ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) {
1791 if (coda_get_bitstream_payload(ctx) >= ctx->bitstream.size - 512)
1792 kfifo_init(&ctx->bitstream_fifo,
1793 ctx->bitstream.vaddr, ctx->bitstream.size);
1794 }
1795
1796 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1797 src_fourcc = q_data_src->fourcc;
1798
1799 val = coda_read(dev, CODA_RET_DEC_PIC_SUCCESS);
1800 if (val != 1)
1801 pr_err("DEC_PIC_SUCCESS = %d\n", val);
1802
1803 success = val & 0x1;
1804 if (!success)
1805 v4l2_err(&dev->v4l2_dev, "decode failed\n");
1806
1807 if (src_fourcc == V4L2_PIX_FMT_H264) {
1808 if (val & (1 << 3))
1809 v4l2_err(&dev->v4l2_dev,
1810 "insufficient PS buffer space (%d bytes)\n",
1811 ctx->psbuf.size);
1812 if (val & (1 << 2))
1813 v4l2_err(&dev->v4l2_dev,
1814 "insufficient slice buffer space (%d bytes)\n",
1815 ctx->slicebuf.size);
1816 }
1817
1818 val = coda_read(dev, CODA_RET_DEC_PIC_SIZE);
1819 width = (val >> 16) & 0xffff;
1820 height = val & 0xffff;
1821
1822 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1823
1824 /* frame crop information */
1825 if (src_fourcc == V4L2_PIX_FMT_H264) {
1826 u32 left_right;
1827 u32 top_bottom;
1828
1829 left_right = coda_read(dev, CODA_RET_DEC_PIC_CROP_LEFT_RIGHT);
1830 top_bottom = coda_read(dev, CODA_RET_DEC_PIC_CROP_TOP_BOTTOM);
1831
1832 if (left_right == 0xffffffff && top_bottom == 0xffffffff) {
1833 /* Keep current crop information */
1834 } else {
1835 struct v4l2_rect *rect = &q_data_dst->rect;
1836
1837 rect->left = left_right >> 16 & 0xffff;
1838 rect->top = top_bottom >> 16 & 0xffff;
1839 rect->width = width - rect->left -
1840 (left_right & 0xffff);
1841 rect->height = height - rect->top -
1842 (top_bottom & 0xffff);
1843 }
1844 } else {
1845 /* no cropping */
1846 }
1847
1848 err_mb = coda_read(dev, CODA_RET_DEC_PIC_ERR_MB);
1849 if (err_mb > 0)
1850 v4l2_err(&dev->v4l2_dev,
1851 "errors in %d macroblocks\n", err_mb);
1852
1853 if (dev->devtype->product == CODA_7541) {
1854 val = coda_read(dev, CODA_RET_DEC_PIC_OPTION);
1855 if (val == 0) {
1856 /* not enough bitstream data */
1857 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1858 "prescan failed: %d\n", val);
1859 ctx->hold = true;
1860 return;
1861 }
1862 }
1863
1864 ctx->frm_dis_flg = coda_read(dev,
1865 CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
1866
1867 /*
1868 * The previous display frame was copied out by the rotator,
1869 * now it can be overwritten again
1870 */
1871 if (ctx->display_idx >= 0 &&
1872 ctx->display_idx < ctx->num_internal_frames) {
1873 ctx->frm_dis_flg &= ~(1 << ctx->display_idx);
1874 coda_write(dev, ctx->frm_dis_flg,
1875 CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
1876 }
1877
1878 /*
1879 * The index of the last decoded frame, not necessarily in
1880 * display order, and the index of the next display frame.
1881 * The latter could have been decoded in a previous run.
1882 */
1883 decoded_idx = coda_read(dev, CODA_RET_DEC_PIC_CUR_IDX);
1884 display_idx = coda_read(dev, CODA_RET_DEC_PIC_FRAME_IDX);
1885
1886 if (decoded_idx == -1) {
1887 /* no frame was decoded, but we might have a display frame */
1888 if (display_idx >= 0 && display_idx < ctx->num_internal_frames)
1889 ctx->sequence_offset++;
1890 else if (ctx->display_idx < 0)
1891 ctx->hold = true;
1892 } else if (decoded_idx == -2) {
1893 /* no frame was decoded, we still return remaining buffers */
1894 } else if (decoded_idx < 0 || decoded_idx >= ctx->num_internal_frames) {
1895 v4l2_err(&dev->v4l2_dev,
1896 "decoded frame index out of range: %d\n", decoded_idx);
1897 } else {
1898 val = coda_read(dev, CODA_RET_DEC_PIC_FRAME_NUM) - 1;
1899 val -= ctx->sequence_offset;
1900 mutex_lock(&ctx->bitstream_mutex);
1901 if (!list_empty(&ctx->buffer_meta_list)) {
1902 meta = list_first_entry(&ctx->buffer_meta_list,
1903 struct coda_buffer_meta, list);
1904 list_del(&meta->list);
1905 if (val != (meta->sequence & 0xffff)) {
1906 v4l2_err(&dev->v4l2_dev,
1907 "sequence number mismatch (%d(%d) != %d)\n",
1908 val, ctx->sequence_offset,
1909 meta->sequence);
1910 }
1911 ctx->frame_metas[decoded_idx] = *meta;
1912 kfree(meta);
1913 } else {
1914 v4l2_err(&dev->v4l2_dev, "empty timestamp list!\n");
1915 memset(&ctx->frame_metas[decoded_idx], 0,
1916 sizeof(struct coda_buffer_meta));
1917 ctx->frame_metas[decoded_idx].sequence = val;
1918 ctx->sequence_offset++;
1919 }
1920 mutex_unlock(&ctx->bitstream_mutex);
1921
1922 trace_coda_dec_pic_done(ctx, &ctx->frame_metas[decoded_idx]);
1923
1924 val = coda_read(dev, CODA_RET_DEC_PIC_TYPE) & 0x7;
1925 if (val == 0)
1926 ctx->frame_types[decoded_idx] = V4L2_BUF_FLAG_KEYFRAME;
1927 else if (val == 1)
1928 ctx->frame_types[decoded_idx] = V4L2_BUF_FLAG_PFRAME;
1929 else
1930 ctx->frame_types[decoded_idx] = V4L2_BUF_FLAG_BFRAME;
1931
1932 ctx->frame_errors[decoded_idx] = err_mb;
1933 }
1934
1935 if (display_idx == -1) {
1936 /*
1937 * no more frames to be decoded, but there could still
1938 * be rotator output to dequeue
1939 */
1940 ctx->hold = true;
1941 } else if (display_idx == -3) {
1942 /* possibly prescan failure */
1943 } else if (display_idx < 0 || display_idx >= ctx->num_internal_frames) {
1944 v4l2_err(&dev->v4l2_dev,
1945 "presentation frame index out of range: %d\n",
1946 display_idx);
1947 }
1948
1949 /* If a frame was copied out, return it */
1950 if (ctx->display_idx >= 0 &&
1951 ctx->display_idx < ctx->num_internal_frames) {
1952 dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
1953 dst_buf->v4l2_buf.sequence = ctx->osequence++;
1954
1955 dst_buf->v4l2_buf.flags &= ~(V4L2_BUF_FLAG_KEYFRAME |
1956 V4L2_BUF_FLAG_PFRAME |
1957 V4L2_BUF_FLAG_BFRAME);
1958 dst_buf->v4l2_buf.flags |= ctx->frame_types[ctx->display_idx];
1959 meta = &ctx->frame_metas[ctx->display_idx];
1960 dst_buf->v4l2_buf.timecode = meta->timecode;
1961 dst_buf->v4l2_buf.timestamp = meta->timestamp;
1962
1963 trace_coda_dec_rot_done(ctx, meta, dst_buf);
1964
1965 switch (q_data_dst->fourcc) {
1966 case V4L2_PIX_FMT_YUV420:
1967 case V4L2_PIX_FMT_YVU420:
1968 case V4L2_PIX_FMT_NV12:
1969 default:
1970 payload = width * height * 3 / 2;
1971 break;
1972 case V4L2_PIX_FMT_YUV422P:
1973 payload = width * height * 2;
1974 break;
1975 }
1976 vb2_set_plane_payload(dst_buf, 0, payload);
1977
1978 v4l2_m2m_buf_done(dst_buf, ctx->frame_errors[display_idx] ?
1979 VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
1980
1981 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1982 "job finished: decoding frame (%d) (%s)\n",
1983 dst_buf->v4l2_buf.sequence,
1984 (dst_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) ?
1985 "KEYFRAME" : "PFRAME");
1986 } else {
1987 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1988 "job finished: no frame decoded\n");
1989 }
1990
1991 /* The rotator will copy the current display frame next time */
1992 ctx->display_idx = display_idx;
1993 }
1994
1995 const struct coda_context_ops coda_bit_decode_ops = {
1996 .queue_init = coda_decoder_queue_init,
1997 .reqbufs = coda_decoder_reqbufs,
1998 .start_streaming = coda_start_decoding,
1999 .prepare_run = coda_prepare_decode,
2000 .finish_run = coda_finish_decode,
2001 .seq_end_work = coda_seq_end_work,
2002 .release = coda_bit_release,
2003 };
2004
coda_irq_handler(int irq,void * data)2005 irqreturn_t coda_irq_handler(int irq, void *data)
2006 {
2007 struct coda_dev *dev = data;
2008 struct coda_ctx *ctx;
2009
2010 /* read status register to attend the IRQ */
2011 coda_read(dev, CODA_REG_BIT_INT_STATUS);
2012 coda_write(dev, CODA_REG_BIT_INT_CLEAR_SET,
2013 CODA_REG_BIT_INT_CLEAR);
2014
2015 ctx = v4l2_m2m_get_curr_priv(dev->m2m_dev);
2016 if (ctx == NULL) {
2017 v4l2_err(&dev->v4l2_dev,
2018 "Instance released before the end of transaction\n");
2019 mutex_unlock(&dev->coda_mutex);
2020 return IRQ_HANDLED;
2021 }
2022
2023 trace_coda_bit_done(ctx);
2024
2025 if (ctx->aborting) {
2026 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
2027 "task has been aborted\n");
2028 }
2029
2030 if (coda_isbusy(ctx->dev)) {
2031 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
2032 "coda is still busy!!!!\n");
2033 return IRQ_NONE;
2034 }
2035
2036 complete(&ctx->completion);
2037
2038 return IRQ_HANDLED;
2039 }
2040