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-v4l2.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_v4l2_buffer * src_buf)181 static int coda_bitstream_queue(struct coda_ctx *ctx,
182 struct vb2_v4l2_buffer *src_buf)
183 {
184 u32 src_size = vb2_get_plane_payload(&src_buf->vb2_buf, 0);
185 u32 n;
186
187 n = kfifo_in(&ctx->bitstream_fifo,
188 vb2_plane_vaddr(&src_buf->vb2_buf, 0), src_size);
189 if (n < src_size)
190 return -ENOSPC;
191
192 src_buf->sequence = ctx->qsequence++;
193
194 return 0;
195 }
196
coda_bitstream_try_queue(struct coda_ctx * ctx,struct vb2_v4l2_buffer * src_buf)197 static bool coda_bitstream_try_queue(struct coda_ctx *ctx,
198 struct vb2_v4l2_buffer *src_buf)
199 {
200 int ret;
201
202 if (coda_get_bitstream_payload(ctx) +
203 vb2_get_plane_payload(&src_buf->vb2_buf, 0) + 512 >=
204 ctx->bitstream.size)
205 return false;
206
207 if (vb2_plane_vaddr(&src_buf->vb2_buf, 0) == NULL) {
208 v4l2_err(&ctx->dev->v4l2_dev, "trying to queue empty buffer\n");
209 return true;
210 }
211
212 ret = coda_bitstream_queue(ctx, src_buf);
213 if (ret < 0) {
214 v4l2_err(&ctx->dev->v4l2_dev, "bitstream buffer overflow\n");
215 return false;
216 }
217 /* Sync read pointer to device */
218 if (ctx == v4l2_m2m_get_curr_priv(ctx->dev->m2m_dev))
219 coda_kfifo_sync_to_device_write(ctx);
220
221 ctx->hold = false;
222
223 return true;
224 }
225
coda_fill_bitstream(struct coda_ctx * ctx,bool streaming)226 void coda_fill_bitstream(struct coda_ctx *ctx, bool streaming)
227 {
228 struct vb2_v4l2_buffer *src_buf;
229 struct coda_buffer_meta *meta;
230 unsigned long flags;
231 u32 start;
232
233 if (ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG)
234 return;
235
236 while (v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) > 0) {
237 /*
238 * Only queue a single JPEG into the bitstream buffer, except
239 * to increase payload over 512 bytes or if in hold state.
240 */
241 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG &&
242 (coda_get_bitstream_payload(ctx) >= 512) && !ctx->hold)
243 break;
244
245 src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
246
247 /* Drop frames that do not start/end with a SOI/EOI markers */
248 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG &&
249 !coda_jpeg_check_buffer(ctx, src_buf)) {
250 v4l2_err(&ctx->dev->v4l2_dev,
251 "dropping invalid JPEG frame %d\n",
252 ctx->qsequence);
253 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
254 v4l2_m2m_buf_done(src_buf, streaming ?
255 VB2_BUF_STATE_ERROR :
256 VB2_BUF_STATE_QUEUED);
257 continue;
258 }
259
260 /* Dump empty buffers */
261 if (!vb2_get_plane_payload(&src_buf->vb2_buf, 0)) {
262 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
263 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
264 continue;
265 }
266
267 /* Buffer start position */
268 start = ctx->bitstream_fifo.kfifo.in &
269 ctx->bitstream_fifo.kfifo.mask;
270
271 if (coda_bitstream_try_queue(ctx, src_buf)) {
272 /*
273 * Source buffer is queued in the bitstream ringbuffer;
274 * queue the timestamp and mark source buffer as done
275 */
276 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
277
278 meta = kmalloc(sizeof(*meta), GFP_KERNEL);
279 if (meta) {
280 meta->sequence = src_buf->sequence;
281 meta->timecode = src_buf->timecode;
282 meta->timestamp = src_buf->timestamp;
283 meta->start = start;
284 meta->end = ctx->bitstream_fifo.kfifo.in &
285 ctx->bitstream_fifo.kfifo.mask;
286 spin_lock_irqsave(&ctx->buffer_meta_lock,
287 flags);
288 list_add_tail(&meta->list,
289 &ctx->buffer_meta_list);
290 ctx->num_metas++;
291 spin_unlock_irqrestore(&ctx->buffer_meta_lock,
292 flags);
293
294 trace_coda_bit_queue(ctx, src_buf, meta);
295 }
296
297 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
298 } else {
299 break;
300 }
301 }
302 }
303
coda_bit_stream_end_flag(struct coda_ctx * ctx)304 void coda_bit_stream_end_flag(struct coda_ctx *ctx)
305 {
306 struct coda_dev *dev = ctx->dev;
307
308 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
309
310 /* If this context is currently running, update the hardware flag */
311 if ((dev->devtype->product == CODA_960) &&
312 coda_isbusy(dev) &&
313 (ctx->idx == coda_read(dev, CODA_REG_BIT_RUN_INDEX))) {
314 coda_write(dev, ctx->bit_stream_param,
315 CODA_REG_BIT_BIT_STREAM_PARAM);
316 }
317 }
318
coda_parabuf_write(struct coda_ctx * ctx,int index,u32 value)319 static void coda_parabuf_write(struct coda_ctx *ctx, int index, u32 value)
320 {
321 struct coda_dev *dev = ctx->dev;
322 u32 *p = ctx->parabuf.vaddr;
323
324 if (dev->devtype->product == CODA_DX6)
325 p[index] = value;
326 else
327 p[index ^ 1] = value;
328 }
329
coda_alloc_context_buf(struct coda_ctx * ctx,struct coda_aux_buf * buf,size_t size,const char * name)330 static inline int coda_alloc_context_buf(struct coda_ctx *ctx,
331 struct coda_aux_buf *buf, size_t size,
332 const char *name)
333 {
334 return coda_alloc_aux_buf(ctx->dev, buf, size, name, ctx->debugfs_entry);
335 }
336
337
coda_free_framebuffers(struct coda_ctx * ctx)338 static void coda_free_framebuffers(struct coda_ctx *ctx)
339 {
340 int i;
341
342 for (i = 0; i < CODA_MAX_FRAMEBUFFERS; i++)
343 coda_free_aux_buf(ctx->dev, &ctx->internal_frames[i]);
344 }
345
coda_alloc_framebuffers(struct coda_ctx * ctx,struct coda_q_data * q_data,u32 fourcc)346 static int coda_alloc_framebuffers(struct coda_ctx *ctx,
347 struct coda_q_data *q_data, u32 fourcc)
348 {
349 struct coda_dev *dev = ctx->dev;
350 int width, height;
351 int ysize;
352 int ret;
353 int i;
354
355 if (ctx->codec && (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 ||
356 ctx->codec->dst_fourcc == V4L2_PIX_FMT_H264)) {
357 width = round_up(q_data->width, 16);
358 height = round_up(q_data->height, 16);
359 } else {
360 width = round_up(q_data->width, 8);
361 height = q_data->height;
362 }
363 ysize = width * height;
364
365 /* Allocate frame buffers */
366 for (i = 0; i < ctx->num_internal_frames; i++) {
367 size_t size;
368 char *name;
369
370 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP)
371 size = round_up(ysize, 4096) + ysize / 2;
372 else
373 size = ysize + ysize / 2;
374 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 &&
375 dev->devtype->product != CODA_DX6)
376 size += ysize / 4;
377 name = kasprintf(GFP_KERNEL, "fb%d", i);
378 ret = coda_alloc_context_buf(ctx, &ctx->internal_frames[i],
379 size, name);
380 kfree(name);
381 if (ret < 0) {
382 coda_free_framebuffers(ctx);
383 return ret;
384 }
385 }
386
387 /* Register frame buffers in the parameter buffer */
388 for (i = 0; i < ctx->num_internal_frames; i++) {
389 u32 y, cb, cr;
390
391 /* Start addresses of Y, Cb, Cr planes */
392 y = ctx->internal_frames[i].paddr;
393 cb = y + ysize;
394 cr = y + ysize + ysize/4;
395 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP) {
396 cb = round_up(cb, 4096);
397 cr = 0;
398 /* Packed 20-bit MSB of base addresses */
399 /* YYYYYCCC, CCyyyyyc, cccc.... */
400 y = (y & 0xfffff000) | cb >> 20;
401 cb = (cb & 0x000ff000) << 12;
402 }
403 coda_parabuf_write(ctx, i * 3 + 0, y);
404 coda_parabuf_write(ctx, i * 3 + 1, cb);
405 coda_parabuf_write(ctx, i * 3 + 2, cr);
406
407 /* mvcol buffer for h.264 */
408 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_H264 &&
409 dev->devtype->product != CODA_DX6)
410 coda_parabuf_write(ctx, 96 + i,
411 ctx->internal_frames[i].paddr +
412 ysize + ysize/4 + ysize/4);
413 }
414
415 /* mvcol buffer for mpeg4 */
416 if ((dev->devtype->product != CODA_DX6) &&
417 (ctx->codec->src_fourcc == V4L2_PIX_FMT_MPEG4))
418 coda_parabuf_write(ctx, 97, ctx->internal_frames[0].paddr +
419 ysize + ysize/4 + ysize/4);
420
421 return 0;
422 }
423
coda_free_context_buffers(struct coda_ctx * ctx)424 static void coda_free_context_buffers(struct coda_ctx *ctx)
425 {
426 struct coda_dev *dev = ctx->dev;
427
428 coda_free_aux_buf(dev, &ctx->slicebuf);
429 coda_free_aux_buf(dev, &ctx->psbuf);
430 if (dev->devtype->product != CODA_DX6)
431 coda_free_aux_buf(dev, &ctx->workbuf);
432 coda_free_aux_buf(dev, &ctx->parabuf);
433 }
434
coda_alloc_context_buffers(struct coda_ctx * ctx,struct coda_q_data * q_data)435 static int coda_alloc_context_buffers(struct coda_ctx *ctx,
436 struct coda_q_data *q_data)
437 {
438 struct coda_dev *dev = ctx->dev;
439 size_t size;
440 int ret;
441
442 if (!ctx->parabuf.vaddr) {
443 ret = coda_alloc_context_buf(ctx, &ctx->parabuf,
444 CODA_PARA_BUF_SIZE, "parabuf");
445 if (ret < 0)
446 return ret;
447 }
448
449 if (dev->devtype->product == CODA_DX6)
450 return 0;
451
452 if (!ctx->slicebuf.vaddr && q_data->fourcc == V4L2_PIX_FMT_H264) {
453 /* worst case slice size */
454 size = (DIV_ROUND_UP(q_data->width, 16) *
455 DIV_ROUND_UP(q_data->height, 16)) * 3200 / 8 + 512;
456 ret = coda_alloc_context_buf(ctx, &ctx->slicebuf, size,
457 "slicebuf");
458 if (ret < 0)
459 goto err;
460 }
461
462 if (!ctx->psbuf.vaddr && dev->devtype->product == CODA_7541) {
463 ret = coda_alloc_context_buf(ctx, &ctx->psbuf,
464 CODA7_PS_BUF_SIZE, "psbuf");
465 if (ret < 0)
466 goto err;
467 }
468
469 if (!ctx->workbuf.vaddr) {
470 size = dev->devtype->workbuf_size;
471 if (dev->devtype->product == CODA_960 &&
472 q_data->fourcc == V4L2_PIX_FMT_H264)
473 size += CODA9_PS_SAVE_SIZE;
474 ret = coda_alloc_context_buf(ctx, &ctx->workbuf, size,
475 "workbuf");
476 if (ret < 0)
477 goto err;
478 }
479
480 return 0;
481
482 err:
483 coda_free_context_buffers(ctx);
484 return ret;
485 }
486
coda_encode_header(struct coda_ctx * ctx,struct vb2_v4l2_buffer * buf,int header_code,u8 * header,int * size)487 static int coda_encode_header(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
488 int header_code, u8 *header, int *size)
489 {
490 struct vb2_buffer *vb = &buf->vb2_buf;
491 struct coda_dev *dev = ctx->dev;
492 size_t bufsize;
493 int ret;
494 int i;
495
496 if (dev->devtype->product == CODA_960)
497 memset(vb2_plane_vaddr(vb, 0), 0, 64);
498
499 coda_write(dev, vb2_dma_contig_plane_dma_addr(vb, 0),
500 CODA_CMD_ENC_HEADER_BB_START);
501 bufsize = vb2_plane_size(vb, 0);
502 if (dev->devtype->product == CODA_960)
503 bufsize /= 1024;
504 coda_write(dev, bufsize, CODA_CMD_ENC_HEADER_BB_SIZE);
505 coda_write(dev, header_code, CODA_CMD_ENC_HEADER_CODE);
506 ret = coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER);
507 if (ret < 0) {
508 v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n");
509 return ret;
510 }
511
512 if (dev->devtype->product == CODA_960) {
513 for (i = 63; i > 0; i--)
514 if (((char *)vb2_plane_vaddr(vb, 0))[i] != 0)
515 break;
516 *size = i + 1;
517 } else {
518 *size = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->reg_idx)) -
519 coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
520 }
521 memcpy(header, vb2_plane_vaddr(vb, 0), *size);
522
523 return 0;
524 }
525
coda_iram_alloc(struct coda_iram_info * iram,size_t size)526 static phys_addr_t coda_iram_alloc(struct coda_iram_info *iram, size_t size)
527 {
528 phys_addr_t ret;
529
530 size = round_up(size, 1024);
531 if (size > iram->remaining)
532 return 0;
533 iram->remaining -= size;
534
535 ret = iram->next_paddr;
536 iram->next_paddr += size;
537
538 return ret;
539 }
540
coda_setup_iram(struct coda_ctx * ctx)541 static void coda_setup_iram(struct coda_ctx *ctx)
542 {
543 struct coda_iram_info *iram_info = &ctx->iram_info;
544 struct coda_dev *dev = ctx->dev;
545 int w64, w128;
546 int mb_width;
547 int dbk_bits;
548 int bit_bits;
549 int ip_bits;
550
551 memset(iram_info, 0, sizeof(*iram_info));
552 iram_info->next_paddr = dev->iram.paddr;
553 iram_info->remaining = dev->iram.size;
554
555 if (!dev->iram.vaddr)
556 return;
557
558 switch (dev->devtype->product) {
559 case CODA_7541:
560 dbk_bits = CODA7_USE_HOST_DBK_ENABLE | CODA7_USE_DBK_ENABLE;
561 bit_bits = CODA7_USE_HOST_BIT_ENABLE | CODA7_USE_BIT_ENABLE;
562 ip_bits = CODA7_USE_HOST_IP_ENABLE | CODA7_USE_IP_ENABLE;
563 break;
564 case CODA_960:
565 dbk_bits = CODA9_USE_HOST_DBK_ENABLE | CODA9_USE_DBK_ENABLE;
566 bit_bits = CODA9_USE_HOST_BIT_ENABLE | CODA7_USE_BIT_ENABLE;
567 ip_bits = CODA9_USE_HOST_IP_ENABLE | CODA7_USE_IP_ENABLE;
568 break;
569 default: /* CODA_DX6 */
570 return;
571 }
572
573 if (ctx->inst_type == CODA_INST_ENCODER) {
574 struct coda_q_data *q_data_src;
575
576 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
577 mb_width = DIV_ROUND_UP(q_data_src->width, 16);
578 w128 = mb_width * 128;
579 w64 = mb_width * 64;
580
581 /* Prioritize in case IRAM is too small for everything */
582 if (dev->devtype->product == CODA_7541) {
583 iram_info->search_ram_size = round_up(mb_width * 16 *
584 36 + 2048, 1024);
585 iram_info->search_ram_paddr = coda_iram_alloc(iram_info,
586 iram_info->search_ram_size);
587 if (!iram_info->search_ram_paddr) {
588 pr_err("IRAM is smaller than the search ram size\n");
589 goto out;
590 }
591 iram_info->axi_sram_use |= CODA7_USE_HOST_ME_ENABLE |
592 CODA7_USE_ME_ENABLE;
593 }
594
595 /* Only H.264BP and H.263P3 are considered */
596 iram_info->buf_dbk_y_use = coda_iram_alloc(iram_info, w64);
597 iram_info->buf_dbk_c_use = coda_iram_alloc(iram_info, w64);
598 if (!iram_info->buf_dbk_c_use)
599 goto out;
600 iram_info->axi_sram_use |= dbk_bits;
601
602 iram_info->buf_bit_use = coda_iram_alloc(iram_info, w128);
603 if (!iram_info->buf_bit_use)
604 goto out;
605 iram_info->axi_sram_use |= bit_bits;
606
607 iram_info->buf_ip_ac_dc_use = coda_iram_alloc(iram_info, w128);
608 if (!iram_info->buf_ip_ac_dc_use)
609 goto out;
610 iram_info->axi_sram_use |= ip_bits;
611
612 /* OVL and BTP disabled for encoder */
613 } else if (ctx->inst_type == CODA_INST_DECODER) {
614 struct coda_q_data *q_data_dst;
615
616 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
617 mb_width = DIV_ROUND_UP(q_data_dst->width, 16);
618 w128 = mb_width * 128;
619
620 iram_info->buf_dbk_y_use = coda_iram_alloc(iram_info, w128);
621 iram_info->buf_dbk_c_use = coda_iram_alloc(iram_info, w128);
622 if (!iram_info->buf_dbk_c_use)
623 goto out;
624 iram_info->axi_sram_use |= dbk_bits;
625
626 iram_info->buf_bit_use = coda_iram_alloc(iram_info, w128);
627 if (!iram_info->buf_bit_use)
628 goto out;
629 iram_info->axi_sram_use |= bit_bits;
630
631 iram_info->buf_ip_ac_dc_use = coda_iram_alloc(iram_info, w128);
632 if (!iram_info->buf_ip_ac_dc_use)
633 goto out;
634 iram_info->axi_sram_use |= ip_bits;
635
636 /* OVL and BTP unused as there is no VC1 support yet */
637 }
638
639 out:
640 if (!(iram_info->axi_sram_use & CODA7_USE_HOST_IP_ENABLE))
641 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
642 "IRAM smaller than needed\n");
643
644 if (dev->devtype->product == CODA_7541) {
645 /* TODO - Enabling these causes picture errors on CODA7541 */
646 if (ctx->inst_type == CODA_INST_DECODER) {
647 /* fw 1.4.50 */
648 iram_info->axi_sram_use &= ~(CODA7_USE_HOST_IP_ENABLE |
649 CODA7_USE_IP_ENABLE);
650 } else {
651 /* fw 13.4.29 */
652 iram_info->axi_sram_use &= ~(CODA7_USE_HOST_IP_ENABLE |
653 CODA7_USE_HOST_DBK_ENABLE |
654 CODA7_USE_IP_ENABLE |
655 CODA7_USE_DBK_ENABLE);
656 }
657 }
658 }
659
660 static u32 coda_supported_firmwares[] = {
661 CODA_FIRMWARE_VERNUM(CODA_DX6, 2, 2, 5),
662 CODA_FIRMWARE_VERNUM(CODA_7541, 1, 4, 50),
663 CODA_FIRMWARE_VERNUM(CODA_960, 2, 1, 5),
664 };
665
coda_firmware_supported(u32 vernum)666 static bool coda_firmware_supported(u32 vernum)
667 {
668 int i;
669
670 for (i = 0; i < ARRAY_SIZE(coda_supported_firmwares); i++)
671 if (vernum == coda_supported_firmwares[i])
672 return true;
673 return false;
674 }
675
coda_check_firmware(struct coda_dev * dev)676 int coda_check_firmware(struct coda_dev *dev)
677 {
678 u16 product, major, minor, release;
679 u32 data;
680 int ret;
681
682 ret = clk_prepare_enable(dev->clk_per);
683 if (ret)
684 goto err_clk_per;
685
686 ret = clk_prepare_enable(dev->clk_ahb);
687 if (ret)
688 goto err_clk_ahb;
689
690 coda_write(dev, 0, CODA_CMD_FIRMWARE_VERNUM);
691 coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
692 coda_write(dev, 0, CODA_REG_BIT_RUN_INDEX);
693 coda_write(dev, 0, CODA_REG_BIT_RUN_COD_STD);
694 coda_write(dev, CODA_COMMAND_FIRMWARE_GET, CODA_REG_BIT_RUN_COMMAND);
695 if (coda_wait_timeout(dev)) {
696 v4l2_err(&dev->v4l2_dev, "firmware get command error\n");
697 ret = -EIO;
698 goto err_run_cmd;
699 }
700
701 if (dev->devtype->product == CODA_960) {
702 data = coda_read(dev, CODA9_CMD_FIRMWARE_CODE_REV);
703 v4l2_info(&dev->v4l2_dev, "Firmware code revision: %d\n",
704 data);
705 }
706
707 /* Check we are compatible with the loaded firmware */
708 data = coda_read(dev, CODA_CMD_FIRMWARE_VERNUM);
709 product = CODA_FIRMWARE_PRODUCT(data);
710 major = CODA_FIRMWARE_MAJOR(data);
711 minor = CODA_FIRMWARE_MINOR(data);
712 release = CODA_FIRMWARE_RELEASE(data);
713
714 clk_disable_unprepare(dev->clk_per);
715 clk_disable_unprepare(dev->clk_ahb);
716
717 if (product != dev->devtype->product) {
718 v4l2_err(&dev->v4l2_dev,
719 "Wrong firmware. Hw: %s, Fw: %s, Version: %u.%u.%u\n",
720 coda_product_name(dev->devtype->product),
721 coda_product_name(product), major, minor, release);
722 return -EINVAL;
723 }
724
725 v4l2_info(&dev->v4l2_dev, "Initialized %s.\n",
726 coda_product_name(product));
727
728 if (coda_firmware_supported(data)) {
729 v4l2_info(&dev->v4l2_dev, "Firmware version: %u.%u.%u\n",
730 major, minor, release);
731 } else {
732 v4l2_warn(&dev->v4l2_dev,
733 "Unsupported firmware version: %u.%u.%u\n",
734 major, minor, release);
735 }
736
737 return 0;
738
739 err_run_cmd:
740 clk_disable_unprepare(dev->clk_ahb);
741 err_clk_ahb:
742 clk_disable_unprepare(dev->clk_per);
743 err_clk_per:
744 return ret;
745 }
746
coda9_set_frame_cache(struct coda_ctx * ctx,u32 fourcc)747 static void coda9_set_frame_cache(struct coda_ctx *ctx, u32 fourcc)
748 {
749 u32 cache_size, cache_config;
750
751 if (ctx->tiled_map_type == GDI_LINEAR_FRAME_MAP) {
752 /* Luma 2x0 page, 2x6 cache, chroma 2x0 page, 2x4 cache size */
753 cache_size = 0x20262024;
754 cache_config = 2 << CODA9_CACHE_PAGEMERGE_OFFSET;
755 } else {
756 /* Luma 0x2 page, 4x4 cache, chroma 0x2 page, 4x3 cache size */
757 cache_size = 0x02440243;
758 cache_config = 1 << CODA9_CACHE_PAGEMERGE_OFFSET;
759 }
760 coda_write(ctx->dev, cache_size, CODA9_CMD_SET_FRAME_CACHE_SIZE);
761 if (fourcc == V4L2_PIX_FMT_NV12) {
762 cache_config |= 32 << CODA9_CACHE_LUMA_BUFFER_SIZE_OFFSET |
763 16 << CODA9_CACHE_CR_BUFFER_SIZE_OFFSET |
764 0 << CODA9_CACHE_CB_BUFFER_SIZE_OFFSET;
765 } else {
766 cache_config |= 32 << CODA9_CACHE_LUMA_BUFFER_SIZE_OFFSET |
767 8 << CODA9_CACHE_CR_BUFFER_SIZE_OFFSET |
768 8 << CODA9_CACHE_CB_BUFFER_SIZE_OFFSET;
769 }
770 coda_write(ctx->dev, cache_config, CODA9_CMD_SET_FRAME_CACHE_CONFIG);
771 }
772
773 /*
774 * Encoder context operations
775 */
776
coda_encoder_reqbufs(struct coda_ctx * ctx,struct v4l2_requestbuffers * rb)777 static int coda_encoder_reqbufs(struct coda_ctx *ctx,
778 struct v4l2_requestbuffers *rb)
779 {
780 struct coda_q_data *q_data_src;
781 int ret;
782
783 if (rb->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
784 return 0;
785
786 if (rb->count) {
787 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
788 ret = coda_alloc_context_buffers(ctx, q_data_src);
789 if (ret < 0)
790 return ret;
791 } else {
792 coda_free_context_buffers(ctx);
793 }
794
795 return 0;
796 }
797
coda_start_encoding(struct coda_ctx * ctx)798 static int coda_start_encoding(struct coda_ctx *ctx)
799 {
800 struct coda_dev *dev = ctx->dev;
801 struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
802 struct coda_q_data *q_data_src, *q_data_dst;
803 u32 bitstream_buf, bitstream_size;
804 struct vb2_v4l2_buffer *buf;
805 int gamma, ret, value;
806 u32 dst_fourcc;
807 int num_fb;
808 u32 stride;
809
810 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
811 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
812 dst_fourcc = q_data_dst->fourcc;
813
814 buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
815 bitstream_buf = vb2_dma_contig_plane_dma_addr(&buf->vb2_buf, 0);
816 bitstream_size = q_data_dst->sizeimage;
817
818 if (!coda_is_initialized(dev)) {
819 v4l2_err(v4l2_dev, "coda is not initialized.\n");
820 return -EFAULT;
821 }
822
823 if (dst_fourcc == V4L2_PIX_FMT_JPEG) {
824 if (!ctx->params.jpeg_qmat_tab[0])
825 ctx->params.jpeg_qmat_tab[0] = kmalloc(64, GFP_KERNEL);
826 if (!ctx->params.jpeg_qmat_tab[1])
827 ctx->params.jpeg_qmat_tab[1] = kmalloc(64, GFP_KERNEL);
828 coda_set_jpeg_compression_quality(ctx, ctx->params.jpeg_quality);
829 }
830
831 mutex_lock(&dev->coda_mutex);
832
833 coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
834 coda_write(dev, bitstream_buf, CODA_REG_BIT_RD_PTR(ctx->reg_idx));
835 coda_write(dev, bitstream_buf, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
836 switch (dev->devtype->product) {
837 case CODA_DX6:
838 coda_write(dev, CODADX6_STREAM_BUF_DYNALLOC_EN |
839 CODADX6_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
840 break;
841 case CODA_960:
842 coda_write(dev, 0, CODA9_GDI_WPROT_RGN_EN);
843 /* fallthrough */
844 case CODA_7541:
845 coda_write(dev, CODA7_STREAM_BUF_DYNALLOC_EN |
846 CODA7_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
847 break;
848 }
849
850 ctx->frame_mem_ctrl &= ~(CODA_FRAME_CHROMA_INTERLEAVE | (0x3 << 9) |
851 CODA9_FRAME_TILED2LINEAR);
852 if (q_data_src->fourcc == V4L2_PIX_FMT_NV12)
853 ctx->frame_mem_ctrl |= CODA_FRAME_CHROMA_INTERLEAVE;
854 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP)
855 ctx->frame_mem_ctrl |= (0x3 << 9) | CODA9_FRAME_TILED2LINEAR;
856 coda_write(dev, ctx->frame_mem_ctrl, CODA_REG_BIT_FRAME_MEM_CTRL);
857
858 if (dev->devtype->product == CODA_DX6) {
859 /* Configure the coda */
860 coda_write(dev, dev->iram.paddr,
861 CODADX6_REG_BIT_SEARCH_RAM_BASE_ADDR);
862 }
863
864 /* Could set rotation here if needed */
865 value = 0;
866 switch (dev->devtype->product) {
867 case CODA_DX6:
868 value = (q_data_src->width & CODADX6_PICWIDTH_MASK)
869 << CODADX6_PICWIDTH_OFFSET;
870 value |= (q_data_src->height & CODADX6_PICHEIGHT_MASK)
871 << CODA_PICHEIGHT_OFFSET;
872 break;
873 case CODA_7541:
874 if (dst_fourcc == V4L2_PIX_FMT_H264) {
875 value = (round_up(q_data_src->width, 16) &
876 CODA7_PICWIDTH_MASK) << CODA7_PICWIDTH_OFFSET;
877 value |= (round_up(q_data_src->height, 16) &
878 CODA7_PICHEIGHT_MASK) << CODA_PICHEIGHT_OFFSET;
879 break;
880 }
881 /* fallthrough */
882 case CODA_960:
883 value = (q_data_src->width & CODA7_PICWIDTH_MASK)
884 << CODA7_PICWIDTH_OFFSET;
885 value |= (q_data_src->height & CODA7_PICHEIGHT_MASK)
886 << CODA_PICHEIGHT_OFFSET;
887 }
888 coda_write(dev, value, CODA_CMD_ENC_SEQ_SRC_SIZE);
889 if (dst_fourcc == V4L2_PIX_FMT_JPEG)
890 ctx->params.framerate = 0;
891 coda_write(dev, ctx->params.framerate,
892 CODA_CMD_ENC_SEQ_SRC_F_RATE);
893
894 ctx->params.codec_mode = ctx->codec->mode;
895 switch (dst_fourcc) {
896 case V4L2_PIX_FMT_MPEG4:
897 if (dev->devtype->product == CODA_960)
898 coda_write(dev, CODA9_STD_MPEG4,
899 CODA_CMD_ENC_SEQ_COD_STD);
900 else
901 coda_write(dev, CODA_STD_MPEG4,
902 CODA_CMD_ENC_SEQ_COD_STD);
903 coda_write(dev, 0, CODA_CMD_ENC_SEQ_MP4_PARA);
904 break;
905 case V4L2_PIX_FMT_H264:
906 if (dev->devtype->product == CODA_960)
907 coda_write(dev, CODA9_STD_H264,
908 CODA_CMD_ENC_SEQ_COD_STD);
909 else
910 coda_write(dev, CODA_STD_H264,
911 CODA_CMD_ENC_SEQ_COD_STD);
912 if (ctx->params.h264_deblk_enabled) {
913 value = ((ctx->params.h264_deblk_alpha &
914 CODA_264PARAM_DEBLKFILTEROFFSETALPHA_MASK) <<
915 CODA_264PARAM_DEBLKFILTEROFFSETALPHA_OFFSET) |
916 ((ctx->params.h264_deblk_beta &
917 CODA_264PARAM_DEBLKFILTEROFFSETBETA_MASK) <<
918 CODA_264PARAM_DEBLKFILTEROFFSETBETA_OFFSET);
919 } else {
920 value = 1 << CODA_264PARAM_DISABLEDEBLK_OFFSET;
921 }
922 coda_write(dev, value, CODA_CMD_ENC_SEQ_264_PARA);
923 break;
924 case V4L2_PIX_FMT_JPEG:
925 coda_write(dev, 0, CODA_CMD_ENC_SEQ_JPG_PARA);
926 coda_write(dev, ctx->params.jpeg_restart_interval,
927 CODA_CMD_ENC_SEQ_JPG_RST_INTERVAL);
928 coda_write(dev, 0, CODA_CMD_ENC_SEQ_JPG_THUMB_EN);
929 coda_write(dev, 0, CODA_CMD_ENC_SEQ_JPG_THUMB_SIZE);
930 coda_write(dev, 0, CODA_CMD_ENC_SEQ_JPG_THUMB_OFFSET);
931
932 coda_jpeg_write_tables(ctx);
933 break;
934 default:
935 v4l2_err(v4l2_dev,
936 "dst format (0x%08x) invalid.\n", dst_fourcc);
937 ret = -EINVAL;
938 goto out;
939 }
940
941 /*
942 * slice mode and GOP size registers are used for thumb size/offset
943 * in JPEG mode
944 */
945 if (dst_fourcc != V4L2_PIX_FMT_JPEG) {
946 switch (ctx->params.slice_mode) {
947 case V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE:
948 value = 0;
949 break;
950 case V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB:
951 value = (ctx->params.slice_max_mb &
952 CODA_SLICING_SIZE_MASK)
953 << CODA_SLICING_SIZE_OFFSET;
954 value |= (1 & CODA_SLICING_UNIT_MASK)
955 << CODA_SLICING_UNIT_OFFSET;
956 value |= 1 & CODA_SLICING_MODE_MASK;
957 break;
958 case V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES:
959 value = (ctx->params.slice_max_bits &
960 CODA_SLICING_SIZE_MASK)
961 << CODA_SLICING_SIZE_OFFSET;
962 value |= (0 & CODA_SLICING_UNIT_MASK)
963 << CODA_SLICING_UNIT_OFFSET;
964 value |= 1 & CODA_SLICING_MODE_MASK;
965 break;
966 }
967 coda_write(dev, value, CODA_CMD_ENC_SEQ_SLICE_MODE);
968 value = ctx->params.gop_size & CODA_GOP_SIZE_MASK;
969 coda_write(dev, value, CODA_CMD_ENC_SEQ_GOP_SIZE);
970 }
971
972 if (ctx->params.bitrate) {
973 /* Rate control enabled */
974 value = (ctx->params.bitrate & CODA_RATECONTROL_BITRATE_MASK)
975 << CODA_RATECONTROL_BITRATE_OFFSET;
976 value |= 1 & CODA_RATECONTROL_ENABLE_MASK;
977 value |= (ctx->params.vbv_delay &
978 CODA_RATECONTROL_INITIALDELAY_MASK)
979 << CODA_RATECONTROL_INITIALDELAY_OFFSET;
980 if (dev->devtype->product == CODA_960)
981 value |= BIT(31); /* disable autoskip */
982 } else {
983 value = 0;
984 }
985 coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_PARA);
986
987 coda_write(dev, ctx->params.vbv_size, CODA_CMD_ENC_SEQ_RC_BUF_SIZE);
988 coda_write(dev, ctx->params.intra_refresh,
989 CODA_CMD_ENC_SEQ_INTRA_REFRESH);
990
991 coda_write(dev, bitstream_buf, CODA_CMD_ENC_SEQ_BB_START);
992 coda_write(dev, bitstream_size / 1024, CODA_CMD_ENC_SEQ_BB_SIZE);
993
994
995 value = 0;
996 if (dev->devtype->product == CODA_960)
997 gamma = CODA9_DEFAULT_GAMMA;
998 else
999 gamma = CODA_DEFAULT_GAMMA;
1000 if (gamma > 0) {
1001 coda_write(dev, (gamma & CODA_GAMMA_MASK) << CODA_GAMMA_OFFSET,
1002 CODA_CMD_ENC_SEQ_RC_GAMMA);
1003 }
1004
1005 if (ctx->params.h264_min_qp || ctx->params.h264_max_qp) {
1006 coda_write(dev,
1007 ctx->params.h264_min_qp << CODA_QPMIN_OFFSET |
1008 ctx->params.h264_max_qp << CODA_QPMAX_OFFSET,
1009 CODA_CMD_ENC_SEQ_RC_QP_MIN_MAX);
1010 }
1011 if (dev->devtype->product == CODA_960) {
1012 if (ctx->params.h264_max_qp)
1013 value |= 1 << CODA9_OPTION_RCQPMAX_OFFSET;
1014 if (CODA_DEFAULT_GAMMA > 0)
1015 value |= 1 << CODA9_OPTION_GAMMA_OFFSET;
1016 } else {
1017 if (CODA_DEFAULT_GAMMA > 0) {
1018 if (dev->devtype->product == CODA_DX6)
1019 value |= 1 << CODADX6_OPTION_GAMMA_OFFSET;
1020 else
1021 value |= 1 << CODA7_OPTION_GAMMA_OFFSET;
1022 }
1023 if (ctx->params.h264_min_qp)
1024 value |= 1 << CODA7_OPTION_RCQPMIN_OFFSET;
1025 if (ctx->params.h264_max_qp)
1026 value |= 1 << CODA7_OPTION_RCQPMAX_OFFSET;
1027 }
1028 coda_write(dev, value, CODA_CMD_ENC_SEQ_OPTION);
1029
1030 coda_write(dev, 0, CODA_CMD_ENC_SEQ_RC_INTERVAL_MODE);
1031
1032 coda_setup_iram(ctx);
1033
1034 if (dst_fourcc == V4L2_PIX_FMT_H264) {
1035 switch (dev->devtype->product) {
1036 case CODA_DX6:
1037 value = FMO_SLICE_SAVE_BUF_SIZE << 7;
1038 coda_write(dev, value, CODADX6_CMD_ENC_SEQ_FMO);
1039 break;
1040 case CODA_7541:
1041 coda_write(dev, ctx->iram_info.search_ram_paddr,
1042 CODA7_CMD_ENC_SEQ_SEARCH_BASE);
1043 coda_write(dev, ctx->iram_info.search_ram_size,
1044 CODA7_CMD_ENC_SEQ_SEARCH_SIZE);
1045 break;
1046 case CODA_960:
1047 coda_write(dev, 0, CODA9_CMD_ENC_SEQ_ME_OPTION);
1048 coda_write(dev, 0, CODA9_CMD_ENC_SEQ_INTRA_WEIGHT);
1049 }
1050 }
1051
1052 ret = coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT);
1053 if (ret < 0) {
1054 v4l2_err(v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
1055 goto out;
1056 }
1057
1058 if (coda_read(dev, CODA_RET_ENC_SEQ_SUCCESS) == 0) {
1059 v4l2_err(v4l2_dev, "CODA_COMMAND_SEQ_INIT failed\n");
1060 ret = -EFAULT;
1061 goto out;
1062 }
1063 ctx->initialized = 1;
1064
1065 if (dst_fourcc != V4L2_PIX_FMT_JPEG) {
1066 if (dev->devtype->product == CODA_960)
1067 ctx->num_internal_frames = 4;
1068 else
1069 ctx->num_internal_frames = 2;
1070 ret = coda_alloc_framebuffers(ctx, q_data_src, dst_fourcc);
1071 if (ret < 0) {
1072 v4l2_err(v4l2_dev, "failed to allocate framebuffers\n");
1073 goto out;
1074 }
1075 num_fb = 2;
1076 stride = q_data_src->bytesperline;
1077 } else {
1078 ctx->num_internal_frames = 0;
1079 num_fb = 0;
1080 stride = 0;
1081 }
1082 coda_write(dev, num_fb, CODA_CMD_SET_FRAME_BUF_NUM);
1083 coda_write(dev, stride, CODA_CMD_SET_FRAME_BUF_STRIDE);
1084
1085 if (dev->devtype->product == CODA_7541) {
1086 coda_write(dev, q_data_src->bytesperline,
1087 CODA7_CMD_SET_FRAME_SOURCE_BUF_STRIDE);
1088 }
1089 if (dev->devtype->product != CODA_DX6) {
1090 coda_write(dev, ctx->iram_info.buf_bit_use,
1091 CODA7_CMD_SET_FRAME_AXI_BIT_ADDR);
1092 coda_write(dev, ctx->iram_info.buf_ip_ac_dc_use,
1093 CODA7_CMD_SET_FRAME_AXI_IPACDC_ADDR);
1094 coda_write(dev, ctx->iram_info.buf_dbk_y_use,
1095 CODA7_CMD_SET_FRAME_AXI_DBKY_ADDR);
1096 coda_write(dev, ctx->iram_info.buf_dbk_c_use,
1097 CODA7_CMD_SET_FRAME_AXI_DBKC_ADDR);
1098 coda_write(dev, ctx->iram_info.buf_ovl_use,
1099 CODA7_CMD_SET_FRAME_AXI_OVL_ADDR);
1100 if (dev->devtype->product == CODA_960) {
1101 coda_write(dev, ctx->iram_info.buf_btp_use,
1102 CODA9_CMD_SET_FRAME_AXI_BTP_ADDR);
1103
1104 coda9_set_frame_cache(ctx, q_data_src->fourcc);
1105
1106 /* FIXME */
1107 coda_write(dev, ctx->internal_frames[2].paddr,
1108 CODA9_CMD_SET_FRAME_SUBSAMP_A);
1109 coda_write(dev, ctx->internal_frames[3].paddr,
1110 CODA9_CMD_SET_FRAME_SUBSAMP_B);
1111 }
1112 }
1113
1114 ret = coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF);
1115 if (ret < 0) {
1116 v4l2_err(v4l2_dev, "CODA_COMMAND_SET_FRAME_BUF timeout\n");
1117 goto out;
1118 }
1119
1120 /* Save stream headers */
1121 buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
1122 switch (dst_fourcc) {
1123 case V4L2_PIX_FMT_H264:
1124 /*
1125 * Get SPS in the first frame and copy it to an
1126 * intermediate buffer.
1127 */
1128 ret = coda_encode_header(ctx, buf, CODA_HEADER_H264_SPS,
1129 &ctx->vpu_header[0][0],
1130 &ctx->vpu_header_size[0]);
1131 if (ret < 0)
1132 goto out;
1133
1134 /*
1135 * Get PPS in the first frame and copy it to an
1136 * intermediate buffer.
1137 */
1138 ret = coda_encode_header(ctx, buf, CODA_HEADER_H264_PPS,
1139 &ctx->vpu_header[1][0],
1140 &ctx->vpu_header_size[1]);
1141 if (ret < 0)
1142 goto out;
1143
1144 /*
1145 * Length of H.264 headers is variable and thus it might not be
1146 * aligned for the coda to append the encoded frame. In that is
1147 * the case a filler NAL must be added to header 2.
1148 */
1149 ctx->vpu_header_size[2] = coda_h264_padding(
1150 (ctx->vpu_header_size[0] +
1151 ctx->vpu_header_size[1]),
1152 ctx->vpu_header[2]);
1153 break;
1154 case V4L2_PIX_FMT_MPEG4:
1155 /*
1156 * Get VOS in the first frame and copy it to an
1157 * intermediate buffer
1158 */
1159 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VOS,
1160 &ctx->vpu_header[0][0],
1161 &ctx->vpu_header_size[0]);
1162 if (ret < 0)
1163 goto out;
1164
1165 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VIS,
1166 &ctx->vpu_header[1][0],
1167 &ctx->vpu_header_size[1]);
1168 if (ret < 0)
1169 goto out;
1170
1171 ret = coda_encode_header(ctx, buf, CODA_HEADER_MP4V_VOL,
1172 &ctx->vpu_header[2][0],
1173 &ctx->vpu_header_size[2]);
1174 if (ret < 0)
1175 goto out;
1176 break;
1177 default:
1178 /* No more formats need to save headers at the moment */
1179 break;
1180 }
1181
1182 out:
1183 mutex_unlock(&dev->coda_mutex);
1184 return ret;
1185 }
1186
coda_prepare_encode(struct coda_ctx * ctx)1187 static int coda_prepare_encode(struct coda_ctx *ctx)
1188 {
1189 struct coda_q_data *q_data_src, *q_data_dst;
1190 struct vb2_v4l2_buffer *src_buf, *dst_buf;
1191 struct coda_dev *dev = ctx->dev;
1192 int force_ipicture;
1193 int quant_param = 0;
1194 u32 pic_stream_buffer_addr, pic_stream_buffer_size;
1195 u32 rot_mode = 0;
1196 u32 dst_fourcc;
1197 u32 reg;
1198
1199 src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
1200 dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
1201 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1202 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1203 dst_fourcc = q_data_dst->fourcc;
1204
1205 src_buf->sequence = ctx->osequence;
1206 dst_buf->sequence = ctx->osequence;
1207 ctx->osequence++;
1208
1209 /*
1210 * Workaround coda firmware BUG that only marks the first
1211 * frame as IDR. This is a problem for some decoders that can't
1212 * recover when a frame is lost.
1213 */
1214 if (src_buf->sequence % ctx->params.gop_size) {
1215 src_buf->flags |= V4L2_BUF_FLAG_PFRAME;
1216 src_buf->flags &= ~V4L2_BUF_FLAG_KEYFRAME;
1217 } else {
1218 src_buf->flags |= V4L2_BUF_FLAG_KEYFRAME;
1219 src_buf->flags &= ~V4L2_BUF_FLAG_PFRAME;
1220 }
1221
1222 if (dev->devtype->product == CODA_960)
1223 coda_set_gdi_regs(ctx);
1224
1225 /*
1226 * Copy headers at the beginning of the first frame for H.264 only.
1227 * In MPEG4 they are already copied by the coda.
1228 */
1229 if (src_buf->sequence == 0) {
1230 pic_stream_buffer_addr =
1231 vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0) +
1232 ctx->vpu_header_size[0] +
1233 ctx->vpu_header_size[1] +
1234 ctx->vpu_header_size[2];
1235 pic_stream_buffer_size = q_data_dst->sizeimage -
1236 ctx->vpu_header_size[0] -
1237 ctx->vpu_header_size[1] -
1238 ctx->vpu_header_size[2];
1239 memcpy(vb2_plane_vaddr(&dst_buf->vb2_buf, 0),
1240 &ctx->vpu_header[0][0], ctx->vpu_header_size[0]);
1241 memcpy(vb2_plane_vaddr(&dst_buf->vb2_buf, 0)
1242 + ctx->vpu_header_size[0], &ctx->vpu_header[1][0],
1243 ctx->vpu_header_size[1]);
1244 memcpy(vb2_plane_vaddr(&dst_buf->vb2_buf, 0)
1245 + ctx->vpu_header_size[0] + ctx->vpu_header_size[1],
1246 &ctx->vpu_header[2][0], ctx->vpu_header_size[2]);
1247 } else {
1248 pic_stream_buffer_addr =
1249 vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
1250 pic_stream_buffer_size = q_data_dst->sizeimage;
1251 }
1252
1253 if (src_buf->flags & V4L2_BUF_FLAG_KEYFRAME) {
1254 force_ipicture = 1;
1255 switch (dst_fourcc) {
1256 case V4L2_PIX_FMT_H264:
1257 quant_param = ctx->params.h264_intra_qp;
1258 break;
1259 case V4L2_PIX_FMT_MPEG4:
1260 quant_param = ctx->params.mpeg4_intra_qp;
1261 break;
1262 case V4L2_PIX_FMT_JPEG:
1263 quant_param = 30;
1264 break;
1265 default:
1266 v4l2_warn(&ctx->dev->v4l2_dev,
1267 "cannot set intra qp, fmt not supported\n");
1268 break;
1269 }
1270 } else {
1271 force_ipicture = 0;
1272 switch (dst_fourcc) {
1273 case V4L2_PIX_FMT_H264:
1274 quant_param = ctx->params.h264_inter_qp;
1275 break;
1276 case V4L2_PIX_FMT_MPEG4:
1277 quant_param = ctx->params.mpeg4_inter_qp;
1278 break;
1279 default:
1280 v4l2_warn(&ctx->dev->v4l2_dev,
1281 "cannot set inter qp, fmt not supported\n");
1282 break;
1283 }
1284 }
1285
1286 /* submit */
1287 if (ctx->params.rot_mode)
1288 rot_mode = CODA_ROT_MIR_ENABLE | ctx->params.rot_mode;
1289 coda_write(dev, rot_mode, CODA_CMD_ENC_PIC_ROT_MODE);
1290 coda_write(dev, quant_param, CODA_CMD_ENC_PIC_QS);
1291
1292 if (dev->devtype->product == CODA_960) {
1293 coda_write(dev, 4/*FIXME: 0*/, CODA9_CMD_ENC_PIC_SRC_INDEX);
1294 coda_write(dev, q_data_src->width, CODA9_CMD_ENC_PIC_SRC_STRIDE);
1295 coda_write(dev, 0, CODA9_CMD_ENC_PIC_SUB_FRAME_SYNC);
1296
1297 reg = CODA9_CMD_ENC_PIC_SRC_ADDR_Y;
1298 } else {
1299 reg = CODA_CMD_ENC_PIC_SRC_ADDR_Y;
1300 }
1301 coda_write_base(ctx, q_data_src, src_buf, reg);
1302
1303 coda_write(dev, force_ipicture << 1 & 0x2,
1304 CODA_CMD_ENC_PIC_OPTION);
1305
1306 coda_write(dev, pic_stream_buffer_addr, CODA_CMD_ENC_PIC_BB_START);
1307 coda_write(dev, pic_stream_buffer_size / 1024,
1308 CODA_CMD_ENC_PIC_BB_SIZE);
1309
1310 if (!ctx->streamon_out) {
1311 /* After streamoff on the output side, set stream end flag */
1312 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
1313 coda_write(dev, ctx->bit_stream_param,
1314 CODA_REG_BIT_BIT_STREAM_PARAM);
1315 }
1316
1317 if (dev->devtype->product != CODA_DX6)
1318 coda_write(dev, ctx->iram_info.axi_sram_use,
1319 CODA7_REG_BIT_AXI_SRAM_USE);
1320
1321 trace_coda_enc_pic_run(ctx, src_buf);
1322
1323 coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
1324
1325 return 0;
1326 }
1327
coda_finish_encode(struct coda_ctx * ctx)1328 static void coda_finish_encode(struct coda_ctx *ctx)
1329 {
1330 struct vb2_v4l2_buffer *src_buf, *dst_buf;
1331 struct coda_dev *dev = ctx->dev;
1332 u32 wr_ptr, start_ptr;
1333
1334 src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
1335 dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
1336
1337 trace_coda_enc_pic_done(ctx, dst_buf);
1338
1339 /* Get results from the coda */
1340 start_ptr = coda_read(dev, CODA_CMD_ENC_PIC_BB_START);
1341 wr_ptr = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
1342
1343 /* Calculate bytesused field */
1344 if (dst_buf->sequence == 0) {
1345 vb2_set_plane_payload(&dst_buf->vb2_buf, 0, wr_ptr - start_ptr +
1346 ctx->vpu_header_size[0] +
1347 ctx->vpu_header_size[1] +
1348 ctx->vpu_header_size[2]);
1349 } else {
1350 vb2_set_plane_payload(&dst_buf->vb2_buf, 0, wr_ptr - start_ptr);
1351 }
1352
1353 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, "frame size = %u\n",
1354 wr_ptr - start_ptr);
1355
1356 coda_read(dev, CODA_RET_ENC_PIC_SLICE_NUM);
1357 coda_read(dev, CODA_RET_ENC_PIC_FLAG);
1358
1359 if (coda_read(dev, CODA_RET_ENC_PIC_TYPE) == 0) {
1360 dst_buf->flags |= V4L2_BUF_FLAG_KEYFRAME;
1361 dst_buf->flags &= ~V4L2_BUF_FLAG_PFRAME;
1362 } else {
1363 dst_buf->flags |= V4L2_BUF_FLAG_PFRAME;
1364 dst_buf->flags &= ~V4L2_BUF_FLAG_KEYFRAME;
1365 }
1366
1367 dst_buf->timestamp = src_buf->timestamp;
1368 dst_buf->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
1369 dst_buf->flags |=
1370 src_buf->flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
1371 dst_buf->timecode = src_buf->timecode;
1372
1373 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
1374
1375 dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
1376 coda_m2m_buf_done(ctx, dst_buf, VB2_BUF_STATE_DONE);
1377
1378 ctx->gopcounter--;
1379 if (ctx->gopcounter < 0)
1380 ctx->gopcounter = ctx->params.gop_size - 1;
1381
1382 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1383 "job finished: encoding frame (%d) (%s)\n",
1384 dst_buf->sequence,
1385 (dst_buf->flags & V4L2_BUF_FLAG_KEYFRAME) ?
1386 "KEYFRAME" : "PFRAME");
1387 }
1388
coda_seq_end_work(struct work_struct * work)1389 static void coda_seq_end_work(struct work_struct *work)
1390 {
1391 struct coda_ctx *ctx = container_of(work, struct coda_ctx, seq_end_work);
1392 struct coda_dev *dev = ctx->dev;
1393
1394 mutex_lock(&ctx->buffer_mutex);
1395 mutex_lock(&dev->coda_mutex);
1396
1397 if (ctx->initialized == 0)
1398 goto out;
1399
1400 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1401 "%d: %s: sent command 'SEQ_END' to coda\n", ctx->idx,
1402 __func__);
1403 if (coda_command_sync(ctx, CODA_COMMAND_SEQ_END)) {
1404 v4l2_err(&dev->v4l2_dev,
1405 "CODA_COMMAND_SEQ_END failed\n");
1406 }
1407
1408 /*
1409 * FIXME: Sometimes h.264 encoding fails with 8-byte sequences missing
1410 * from the output stream after the h.264 decoder has run. Resetting the
1411 * hardware after the decoder has finished seems to help.
1412 */
1413 if (dev->devtype->product == CODA_960)
1414 coda_hw_reset(ctx);
1415
1416 kfifo_init(&ctx->bitstream_fifo,
1417 ctx->bitstream.vaddr, ctx->bitstream.size);
1418
1419 coda_free_framebuffers(ctx);
1420
1421 ctx->initialized = 0;
1422
1423 out:
1424 mutex_unlock(&dev->coda_mutex);
1425 mutex_unlock(&ctx->buffer_mutex);
1426 }
1427
coda_bit_release(struct coda_ctx * ctx)1428 static void coda_bit_release(struct coda_ctx *ctx)
1429 {
1430 mutex_lock(&ctx->buffer_mutex);
1431 coda_free_framebuffers(ctx);
1432 coda_free_context_buffers(ctx);
1433 coda_free_bitstream_buffer(ctx);
1434 mutex_unlock(&ctx->buffer_mutex);
1435 }
1436
1437 const struct coda_context_ops coda_bit_encode_ops = {
1438 .queue_init = coda_encoder_queue_init,
1439 .reqbufs = coda_encoder_reqbufs,
1440 .start_streaming = coda_start_encoding,
1441 .prepare_run = coda_prepare_encode,
1442 .finish_run = coda_finish_encode,
1443 .seq_end_work = coda_seq_end_work,
1444 .release = coda_bit_release,
1445 };
1446
1447 /*
1448 * Decoder context operations
1449 */
1450
coda_alloc_bitstream_buffer(struct coda_ctx * ctx,struct coda_q_data * q_data)1451 static int coda_alloc_bitstream_buffer(struct coda_ctx *ctx,
1452 struct coda_q_data *q_data)
1453 {
1454 if (ctx->bitstream.vaddr)
1455 return 0;
1456
1457 ctx->bitstream.size = roundup_pow_of_two(q_data->sizeimage * 2);
1458 ctx->bitstream.vaddr = dma_alloc_writecombine(
1459 &ctx->dev->plat_dev->dev, ctx->bitstream.size,
1460 &ctx->bitstream.paddr, GFP_KERNEL);
1461 if (!ctx->bitstream.vaddr) {
1462 v4l2_err(&ctx->dev->v4l2_dev,
1463 "failed to allocate bitstream ringbuffer");
1464 return -ENOMEM;
1465 }
1466 kfifo_init(&ctx->bitstream_fifo,
1467 ctx->bitstream.vaddr, ctx->bitstream.size);
1468
1469 return 0;
1470 }
1471
coda_free_bitstream_buffer(struct coda_ctx * ctx)1472 static void coda_free_bitstream_buffer(struct coda_ctx *ctx)
1473 {
1474 if (ctx->bitstream.vaddr == NULL)
1475 return;
1476
1477 dma_free_writecombine(&ctx->dev->plat_dev->dev, ctx->bitstream.size,
1478 ctx->bitstream.vaddr, ctx->bitstream.paddr);
1479 ctx->bitstream.vaddr = NULL;
1480 kfifo_init(&ctx->bitstream_fifo, NULL, 0);
1481 }
1482
coda_decoder_reqbufs(struct coda_ctx * ctx,struct v4l2_requestbuffers * rb)1483 static int coda_decoder_reqbufs(struct coda_ctx *ctx,
1484 struct v4l2_requestbuffers *rb)
1485 {
1486 struct coda_q_data *q_data_src;
1487 int ret;
1488
1489 if (rb->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1490 return 0;
1491
1492 if (rb->count) {
1493 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1494 ret = coda_alloc_context_buffers(ctx, q_data_src);
1495 if (ret < 0)
1496 return ret;
1497 ret = coda_alloc_bitstream_buffer(ctx, q_data_src);
1498 if (ret < 0) {
1499 coda_free_context_buffers(ctx);
1500 return ret;
1501 }
1502 } else {
1503 coda_free_bitstream_buffer(ctx);
1504 coda_free_context_buffers(ctx);
1505 }
1506
1507 return 0;
1508 }
1509
__coda_start_decoding(struct coda_ctx * ctx)1510 static int __coda_start_decoding(struct coda_ctx *ctx)
1511 {
1512 struct coda_q_data *q_data_src, *q_data_dst;
1513 u32 bitstream_buf, bitstream_size;
1514 struct coda_dev *dev = ctx->dev;
1515 int width, height;
1516 u32 src_fourcc, dst_fourcc;
1517 u32 val;
1518 int ret;
1519
1520 /* Start decoding */
1521 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1522 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1523 bitstream_buf = ctx->bitstream.paddr;
1524 bitstream_size = ctx->bitstream.size;
1525 src_fourcc = q_data_src->fourcc;
1526 dst_fourcc = q_data_dst->fourcc;
1527
1528 coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
1529
1530 /* Update coda bitstream read and write pointers from kfifo */
1531 coda_kfifo_sync_to_device_full(ctx);
1532
1533 ctx->frame_mem_ctrl &= ~(CODA_FRAME_CHROMA_INTERLEAVE | (0x3 << 9) |
1534 CODA9_FRAME_TILED2LINEAR);
1535 if (dst_fourcc == V4L2_PIX_FMT_NV12)
1536 ctx->frame_mem_ctrl |= CODA_FRAME_CHROMA_INTERLEAVE;
1537 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP)
1538 ctx->frame_mem_ctrl |= (0x3 << 9) | CODA9_FRAME_TILED2LINEAR;
1539 coda_write(dev, ctx->frame_mem_ctrl, CODA_REG_BIT_FRAME_MEM_CTRL);
1540
1541 ctx->display_idx = -1;
1542 ctx->frm_dis_flg = 0;
1543 coda_write(dev, 0, CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
1544
1545 coda_write(dev, CODA_BIT_DEC_SEQ_INIT_ESCAPE,
1546 CODA_REG_BIT_BIT_STREAM_PARAM);
1547
1548 coda_write(dev, bitstream_buf, CODA_CMD_DEC_SEQ_BB_START);
1549 coda_write(dev, bitstream_size / 1024, CODA_CMD_DEC_SEQ_BB_SIZE);
1550 val = 0;
1551 if ((dev->devtype->product == CODA_7541) ||
1552 (dev->devtype->product == CODA_960))
1553 val |= CODA_REORDER_ENABLE;
1554 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG)
1555 val |= CODA_NO_INT_ENABLE;
1556 coda_write(dev, val, CODA_CMD_DEC_SEQ_OPTION);
1557
1558 ctx->params.codec_mode = ctx->codec->mode;
1559 if (dev->devtype->product == CODA_960 &&
1560 src_fourcc == V4L2_PIX_FMT_MPEG4)
1561 ctx->params.codec_mode_aux = CODA_MP4_AUX_MPEG4;
1562 else
1563 ctx->params.codec_mode_aux = 0;
1564 if (src_fourcc == V4L2_PIX_FMT_H264) {
1565 if (dev->devtype->product == CODA_7541) {
1566 coda_write(dev, ctx->psbuf.paddr,
1567 CODA_CMD_DEC_SEQ_PS_BB_START);
1568 coda_write(dev, (CODA7_PS_BUF_SIZE / 1024),
1569 CODA_CMD_DEC_SEQ_PS_BB_SIZE);
1570 }
1571 if (dev->devtype->product == CODA_960) {
1572 coda_write(dev, 0, CODA_CMD_DEC_SEQ_X264_MV_EN);
1573 coda_write(dev, 512, CODA_CMD_DEC_SEQ_SPP_CHUNK_SIZE);
1574 }
1575 }
1576 if (dev->devtype->product != CODA_960)
1577 coda_write(dev, 0, CODA_CMD_DEC_SEQ_SRC_SIZE);
1578
1579 if (coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT)) {
1580 v4l2_err(&dev->v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
1581 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
1582 return -ETIMEDOUT;
1583 }
1584 ctx->initialized = 1;
1585
1586 /* Update kfifo out pointer from coda bitstream read pointer */
1587 coda_kfifo_sync_from_device(ctx);
1588
1589 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
1590
1591 if (coda_read(dev, CODA_RET_DEC_SEQ_SUCCESS) == 0) {
1592 v4l2_err(&dev->v4l2_dev,
1593 "CODA_COMMAND_SEQ_INIT failed, error code = %d\n",
1594 coda_read(dev, CODA_RET_DEC_SEQ_ERR_REASON));
1595 return -EAGAIN;
1596 }
1597
1598 val = coda_read(dev, CODA_RET_DEC_SEQ_SRC_SIZE);
1599 if (dev->devtype->product == CODA_DX6) {
1600 width = (val >> CODADX6_PICWIDTH_OFFSET) & CODADX6_PICWIDTH_MASK;
1601 height = val & CODADX6_PICHEIGHT_MASK;
1602 } else {
1603 width = (val >> CODA7_PICWIDTH_OFFSET) & CODA7_PICWIDTH_MASK;
1604 height = val & CODA7_PICHEIGHT_MASK;
1605 }
1606
1607 if (width > q_data_dst->bytesperline || height > q_data_dst->height) {
1608 v4l2_err(&dev->v4l2_dev, "stream is %dx%d, not %dx%d\n",
1609 width, height, q_data_dst->bytesperline,
1610 q_data_dst->height);
1611 return -EINVAL;
1612 }
1613
1614 width = round_up(width, 16);
1615 height = round_up(height, 16);
1616
1617 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "%s instance %d now: %dx%d\n",
1618 __func__, ctx->idx, width, height);
1619
1620 ctx->num_internal_frames = coda_read(dev, CODA_RET_DEC_SEQ_FRAME_NEED);
1621 if (ctx->num_internal_frames > CODA_MAX_FRAMEBUFFERS) {
1622 v4l2_err(&dev->v4l2_dev,
1623 "not enough framebuffers to decode (%d < %d)\n",
1624 CODA_MAX_FRAMEBUFFERS, ctx->num_internal_frames);
1625 return -EINVAL;
1626 }
1627
1628 if (src_fourcc == V4L2_PIX_FMT_H264) {
1629 u32 left_right;
1630 u32 top_bottom;
1631
1632 left_right = coda_read(dev, CODA_RET_DEC_SEQ_CROP_LEFT_RIGHT);
1633 top_bottom = coda_read(dev, CODA_RET_DEC_SEQ_CROP_TOP_BOTTOM);
1634
1635 q_data_dst->rect.left = (left_right >> 10) & 0x3ff;
1636 q_data_dst->rect.top = (top_bottom >> 10) & 0x3ff;
1637 q_data_dst->rect.width = width - q_data_dst->rect.left -
1638 (left_right & 0x3ff);
1639 q_data_dst->rect.height = height - q_data_dst->rect.top -
1640 (top_bottom & 0x3ff);
1641 }
1642
1643 ret = coda_alloc_framebuffers(ctx, q_data_dst, src_fourcc);
1644 if (ret < 0) {
1645 v4l2_err(&dev->v4l2_dev, "failed to allocate framebuffers\n");
1646 return ret;
1647 }
1648
1649 /* Tell the decoder how many frame buffers we allocated. */
1650 coda_write(dev, ctx->num_internal_frames, CODA_CMD_SET_FRAME_BUF_NUM);
1651 coda_write(dev, width, CODA_CMD_SET_FRAME_BUF_STRIDE);
1652
1653 if (dev->devtype->product != CODA_DX6) {
1654 /* Set secondary AXI IRAM */
1655 coda_setup_iram(ctx);
1656
1657 coda_write(dev, ctx->iram_info.buf_bit_use,
1658 CODA7_CMD_SET_FRAME_AXI_BIT_ADDR);
1659 coda_write(dev, ctx->iram_info.buf_ip_ac_dc_use,
1660 CODA7_CMD_SET_FRAME_AXI_IPACDC_ADDR);
1661 coda_write(dev, ctx->iram_info.buf_dbk_y_use,
1662 CODA7_CMD_SET_FRAME_AXI_DBKY_ADDR);
1663 coda_write(dev, ctx->iram_info.buf_dbk_c_use,
1664 CODA7_CMD_SET_FRAME_AXI_DBKC_ADDR);
1665 coda_write(dev, ctx->iram_info.buf_ovl_use,
1666 CODA7_CMD_SET_FRAME_AXI_OVL_ADDR);
1667 if (dev->devtype->product == CODA_960) {
1668 coda_write(dev, ctx->iram_info.buf_btp_use,
1669 CODA9_CMD_SET_FRAME_AXI_BTP_ADDR);
1670
1671 coda_write(dev, -1, CODA9_CMD_SET_FRAME_DELAY);
1672 coda9_set_frame_cache(ctx, dst_fourcc);
1673 }
1674 }
1675
1676 if (src_fourcc == V4L2_PIX_FMT_H264) {
1677 coda_write(dev, ctx->slicebuf.paddr,
1678 CODA_CMD_SET_FRAME_SLICE_BB_START);
1679 coda_write(dev, ctx->slicebuf.size / 1024,
1680 CODA_CMD_SET_FRAME_SLICE_BB_SIZE);
1681 }
1682
1683 if (dev->devtype->product == CODA_7541) {
1684 int max_mb_x = 1920 / 16;
1685 int max_mb_y = 1088 / 16;
1686 int max_mb_num = max_mb_x * max_mb_y;
1687
1688 coda_write(dev, max_mb_num << 16 | max_mb_x << 8 | max_mb_y,
1689 CODA7_CMD_SET_FRAME_MAX_DEC_SIZE);
1690 } else if (dev->devtype->product == CODA_960) {
1691 int max_mb_x = 1920 / 16;
1692 int max_mb_y = 1088 / 16;
1693 int max_mb_num = max_mb_x * max_mb_y;
1694
1695 coda_write(dev, max_mb_num << 16 | max_mb_x << 8 | max_mb_y,
1696 CODA9_CMD_SET_FRAME_MAX_DEC_SIZE);
1697 }
1698
1699 if (coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF)) {
1700 v4l2_err(&ctx->dev->v4l2_dev,
1701 "CODA_COMMAND_SET_FRAME_BUF timeout\n");
1702 return -ETIMEDOUT;
1703 }
1704
1705 return 0;
1706 }
1707
coda_start_decoding(struct coda_ctx * ctx)1708 static int coda_start_decoding(struct coda_ctx *ctx)
1709 {
1710 struct coda_dev *dev = ctx->dev;
1711 int ret;
1712
1713 mutex_lock(&dev->coda_mutex);
1714 ret = __coda_start_decoding(ctx);
1715 mutex_unlock(&dev->coda_mutex);
1716
1717 return ret;
1718 }
1719
coda_prepare_decode(struct coda_ctx * ctx)1720 static int coda_prepare_decode(struct coda_ctx *ctx)
1721 {
1722 struct vb2_v4l2_buffer *dst_buf;
1723 struct coda_dev *dev = ctx->dev;
1724 struct coda_q_data *q_data_dst;
1725 struct coda_buffer_meta *meta;
1726 unsigned long flags;
1727 u32 reg_addr, reg_stride;
1728
1729 dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
1730 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1731
1732 /* Try to copy source buffer contents into the bitstream ringbuffer */
1733 mutex_lock(&ctx->bitstream_mutex);
1734 coda_fill_bitstream(ctx, true);
1735 mutex_unlock(&ctx->bitstream_mutex);
1736
1737 if (coda_get_bitstream_payload(ctx) < 512 &&
1738 (!(ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG))) {
1739 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1740 "bitstream payload: %d, skipping\n",
1741 coda_get_bitstream_payload(ctx));
1742 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
1743 return -EAGAIN;
1744 }
1745
1746 /* Run coda_start_decoding (again) if not yet initialized */
1747 if (!ctx->initialized) {
1748 int ret = __coda_start_decoding(ctx);
1749
1750 if (ret < 0) {
1751 v4l2_err(&dev->v4l2_dev, "failed to start decoding\n");
1752 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
1753 return -EAGAIN;
1754 } else {
1755 ctx->initialized = 1;
1756 }
1757 }
1758
1759 if (dev->devtype->product == CODA_960)
1760 coda_set_gdi_regs(ctx);
1761
1762 if (dev->devtype->product == CODA_960) {
1763 /*
1764 * The CODA960 seems to have an internal list of buffers with
1765 * 64 entries that includes the registered frame buffers as
1766 * well as the rotator buffer output.
1767 * ROT_INDEX needs to be < 0x40, but > ctx->num_internal_frames.
1768 */
1769 coda_write(dev, CODA_MAX_FRAMEBUFFERS + dst_buf->vb2_buf.index,
1770 CODA9_CMD_DEC_PIC_ROT_INDEX);
1771
1772 reg_addr = CODA9_CMD_DEC_PIC_ROT_ADDR_Y;
1773 reg_stride = CODA9_CMD_DEC_PIC_ROT_STRIDE;
1774 } else {
1775 reg_addr = CODA_CMD_DEC_PIC_ROT_ADDR_Y;
1776 reg_stride = CODA_CMD_DEC_PIC_ROT_STRIDE;
1777 }
1778 coda_write_base(ctx, q_data_dst, dst_buf, reg_addr);
1779 coda_write(dev, q_data_dst->bytesperline, reg_stride);
1780
1781 coda_write(dev, CODA_ROT_MIR_ENABLE | ctx->params.rot_mode,
1782 CODA_CMD_DEC_PIC_ROT_MODE);
1783
1784 switch (dev->devtype->product) {
1785 case CODA_DX6:
1786 /* TBD */
1787 case CODA_7541:
1788 coda_write(dev, CODA_PRE_SCAN_EN, CODA_CMD_DEC_PIC_OPTION);
1789 break;
1790 case CODA_960:
1791 /* 'hardcode to use interrupt disable mode'? */
1792 coda_write(dev, (1 << 10), CODA_CMD_DEC_PIC_OPTION);
1793 break;
1794 }
1795
1796 coda_write(dev, 0, CODA_CMD_DEC_PIC_SKIP_NUM);
1797
1798 coda_write(dev, 0, CODA_CMD_DEC_PIC_BB_START);
1799 coda_write(dev, 0, CODA_CMD_DEC_PIC_START_BYTE);
1800
1801 if (dev->devtype->product != CODA_DX6)
1802 coda_write(dev, ctx->iram_info.axi_sram_use,
1803 CODA7_REG_BIT_AXI_SRAM_USE);
1804
1805 spin_lock_irqsave(&ctx->buffer_meta_lock, flags);
1806 meta = list_first_entry_or_null(&ctx->buffer_meta_list,
1807 struct coda_buffer_meta, list);
1808
1809 if (meta && ctx->codec->src_fourcc == V4L2_PIX_FMT_JPEG) {
1810
1811 /* If this is the last buffer in the bitstream, add padding */
1812 if (meta->end == (ctx->bitstream_fifo.kfifo.in &
1813 ctx->bitstream_fifo.kfifo.mask)) {
1814 static unsigned char buf[512];
1815 unsigned int pad;
1816
1817 /* Pad to multiple of 256 and then add 256 more */
1818 pad = ((0 - meta->end) & 0xff) + 256;
1819
1820 memset(buf, 0xff, sizeof(buf));
1821
1822 kfifo_in(&ctx->bitstream_fifo, buf, pad);
1823 }
1824 }
1825 spin_unlock_irqrestore(&ctx->buffer_meta_lock, flags);
1826
1827 coda_kfifo_sync_to_device_full(ctx);
1828
1829 /* Clear decode success flag */
1830 coda_write(dev, 0, CODA_RET_DEC_PIC_SUCCESS);
1831
1832 trace_coda_dec_pic_run(ctx, meta);
1833
1834 coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
1835
1836 return 0;
1837 }
1838
coda_finish_decode(struct coda_ctx * ctx)1839 static void coda_finish_decode(struct coda_ctx *ctx)
1840 {
1841 struct coda_dev *dev = ctx->dev;
1842 struct coda_q_data *q_data_src;
1843 struct coda_q_data *q_data_dst;
1844 struct vb2_v4l2_buffer *dst_buf;
1845 struct coda_buffer_meta *meta;
1846 unsigned long payload;
1847 unsigned long flags;
1848 int width, height;
1849 int decoded_idx;
1850 int display_idx;
1851 u32 src_fourcc;
1852 int success;
1853 u32 err_mb;
1854 u32 val;
1855
1856 /* Update kfifo out pointer from coda bitstream read pointer */
1857 coda_kfifo_sync_from_device(ctx);
1858
1859 /*
1860 * in stream-end mode, the read pointer can overshoot the write pointer
1861 * by up to 512 bytes
1862 */
1863 if (ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) {
1864 if (coda_get_bitstream_payload(ctx) >= ctx->bitstream.size - 512)
1865 kfifo_init(&ctx->bitstream_fifo,
1866 ctx->bitstream.vaddr, ctx->bitstream.size);
1867 }
1868
1869 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1870 src_fourcc = q_data_src->fourcc;
1871
1872 val = coda_read(dev, CODA_RET_DEC_PIC_SUCCESS);
1873 if (val != 1)
1874 pr_err("DEC_PIC_SUCCESS = %d\n", val);
1875
1876 success = val & 0x1;
1877 if (!success)
1878 v4l2_err(&dev->v4l2_dev, "decode failed\n");
1879
1880 if (src_fourcc == V4L2_PIX_FMT_H264) {
1881 if (val & (1 << 3))
1882 v4l2_err(&dev->v4l2_dev,
1883 "insufficient PS buffer space (%d bytes)\n",
1884 ctx->psbuf.size);
1885 if (val & (1 << 2))
1886 v4l2_err(&dev->v4l2_dev,
1887 "insufficient slice buffer space (%d bytes)\n",
1888 ctx->slicebuf.size);
1889 }
1890
1891 val = coda_read(dev, CODA_RET_DEC_PIC_SIZE);
1892 width = (val >> 16) & 0xffff;
1893 height = val & 0xffff;
1894
1895 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1896
1897 /* frame crop information */
1898 if (src_fourcc == V4L2_PIX_FMT_H264) {
1899 u32 left_right;
1900 u32 top_bottom;
1901
1902 left_right = coda_read(dev, CODA_RET_DEC_PIC_CROP_LEFT_RIGHT);
1903 top_bottom = coda_read(dev, CODA_RET_DEC_PIC_CROP_TOP_BOTTOM);
1904
1905 if (left_right == 0xffffffff && top_bottom == 0xffffffff) {
1906 /* Keep current crop information */
1907 } else {
1908 struct v4l2_rect *rect = &q_data_dst->rect;
1909
1910 rect->left = left_right >> 16 & 0xffff;
1911 rect->top = top_bottom >> 16 & 0xffff;
1912 rect->width = width - rect->left -
1913 (left_right & 0xffff);
1914 rect->height = height - rect->top -
1915 (top_bottom & 0xffff);
1916 }
1917 } else {
1918 /* no cropping */
1919 }
1920
1921 err_mb = coda_read(dev, CODA_RET_DEC_PIC_ERR_MB);
1922 if (err_mb > 0)
1923 v4l2_err(&dev->v4l2_dev,
1924 "errors in %d macroblocks\n", err_mb);
1925
1926 if (dev->devtype->product == CODA_7541) {
1927 val = coda_read(dev, CODA_RET_DEC_PIC_OPTION);
1928 if (val == 0) {
1929 /* not enough bitstream data */
1930 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1931 "prescan failed: %d\n", val);
1932 ctx->hold = true;
1933 return;
1934 }
1935 }
1936
1937 ctx->frm_dis_flg = coda_read(dev,
1938 CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
1939
1940 /*
1941 * The previous display frame was copied out by the rotator,
1942 * now it can be overwritten again
1943 */
1944 if (ctx->display_idx >= 0 &&
1945 ctx->display_idx < ctx->num_internal_frames) {
1946 ctx->frm_dis_flg &= ~(1 << ctx->display_idx);
1947 coda_write(dev, ctx->frm_dis_flg,
1948 CODA_REG_BIT_FRM_DIS_FLG(ctx->reg_idx));
1949 }
1950
1951 /*
1952 * The index of the last decoded frame, not necessarily in
1953 * display order, and the index of the next display frame.
1954 * The latter could have been decoded in a previous run.
1955 */
1956 decoded_idx = coda_read(dev, CODA_RET_DEC_PIC_CUR_IDX);
1957 display_idx = coda_read(dev, CODA_RET_DEC_PIC_FRAME_IDX);
1958
1959 if (decoded_idx == -1) {
1960 /* no frame was decoded, but we might have a display frame */
1961 if (display_idx >= 0 && display_idx < ctx->num_internal_frames)
1962 ctx->sequence_offset++;
1963 else if (ctx->display_idx < 0)
1964 ctx->hold = true;
1965 } else if (decoded_idx == -2) {
1966 /* no frame was decoded, we still return remaining buffers */
1967 } else if (decoded_idx < 0 || decoded_idx >= ctx->num_internal_frames) {
1968 v4l2_err(&dev->v4l2_dev,
1969 "decoded frame index out of range: %d\n", decoded_idx);
1970 } else {
1971 val = coda_read(dev, CODA_RET_DEC_PIC_FRAME_NUM) - 1;
1972 val -= ctx->sequence_offset;
1973 spin_lock_irqsave(&ctx->buffer_meta_lock, flags);
1974 if (!list_empty(&ctx->buffer_meta_list)) {
1975 meta = list_first_entry(&ctx->buffer_meta_list,
1976 struct coda_buffer_meta, list);
1977 list_del(&meta->list);
1978 ctx->num_metas--;
1979 spin_unlock_irqrestore(&ctx->buffer_meta_lock, flags);
1980 /*
1981 * Clamp counters to 16 bits for comparison, as the HW
1982 * counter rolls over at this point for h.264. This
1983 * may be different for other formats, but using 16 bits
1984 * should be enough to detect most errors and saves us
1985 * from doing different things based on the format.
1986 */
1987 if ((val & 0xffff) != (meta->sequence & 0xffff)) {
1988 v4l2_err(&dev->v4l2_dev,
1989 "sequence number mismatch (%d(%d) != %d)\n",
1990 val, ctx->sequence_offset,
1991 meta->sequence);
1992 }
1993 ctx->frame_metas[decoded_idx] = *meta;
1994 kfree(meta);
1995 } else {
1996 spin_unlock_irqrestore(&ctx->buffer_meta_lock, flags);
1997 v4l2_err(&dev->v4l2_dev, "empty timestamp list!\n");
1998 memset(&ctx->frame_metas[decoded_idx], 0,
1999 sizeof(struct coda_buffer_meta));
2000 ctx->frame_metas[decoded_idx].sequence = val;
2001 ctx->sequence_offset++;
2002 }
2003
2004 trace_coda_dec_pic_done(ctx, &ctx->frame_metas[decoded_idx]);
2005
2006 val = coda_read(dev, CODA_RET_DEC_PIC_TYPE) & 0x7;
2007 if (val == 0)
2008 ctx->frame_types[decoded_idx] = V4L2_BUF_FLAG_KEYFRAME;
2009 else if (val == 1)
2010 ctx->frame_types[decoded_idx] = V4L2_BUF_FLAG_PFRAME;
2011 else
2012 ctx->frame_types[decoded_idx] = V4L2_BUF_FLAG_BFRAME;
2013
2014 ctx->frame_errors[decoded_idx] = err_mb;
2015 }
2016
2017 if (display_idx == -1) {
2018 /*
2019 * no more frames to be decoded, but there could still
2020 * be rotator output to dequeue
2021 */
2022 ctx->hold = true;
2023 } else if (display_idx == -3) {
2024 /* possibly prescan failure */
2025 } else if (display_idx < 0 || display_idx >= ctx->num_internal_frames) {
2026 v4l2_err(&dev->v4l2_dev,
2027 "presentation frame index out of range: %d\n",
2028 display_idx);
2029 }
2030
2031 /* If a frame was copied out, return it */
2032 if (ctx->display_idx >= 0 &&
2033 ctx->display_idx < ctx->num_internal_frames) {
2034 dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
2035 dst_buf->sequence = ctx->osequence++;
2036
2037 dst_buf->flags &= ~(V4L2_BUF_FLAG_KEYFRAME |
2038 V4L2_BUF_FLAG_PFRAME |
2039 V4L2_BUF_FLAG_BFRAME);
2040 dst_buf->flags |= ctx->frame_types[ctx->display_idx];
2041 meta = &ctx->frame_metas[ctx->display_idx];
2042 dst_buf->timecode = meta->timecode;
2043 dst_buf->timestamp = meta->timestamp;
2044
2045 trace_coda_dec_rot_done(ctx, dst_buf, meta);
2046
2047 switch (q_data_dst->fourcc) {
2048 case V4L2_PIX_FMT_YUV420:
2049 case V4L2_PIX_FMT_YVU420:
2050 case V4L2_PIX_FMT_NV12:
2051 default:
2052 payload = width * height * 3 / 2;
2053 break;
2054 case V4L2_PIX_FMT_YUV422P:
2055 payload = width * height * 2;
2056 break;
2057 }
2058 vb2_set_plane_payload(&dst_buf->vb2_buf, 0, payload);
2059
2060 coda_m2m_buf_done(ctx, dst_buf, ctx->frame_errors[display_idx] ?
2061 VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
2062
2063 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
2064 "job finished: decoding frame (%d) (%s)\n",
2065 dst_buf->sequence,
2066 (dst_buf->flags & V4L2_BUF_FLAG_KEYFRAME) ?
2067 "KEYFRAME" : "PFRAME");
2068 } else {
2069 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
2070 "job finished: no frame decoded\n");
2071 }
2072
2073 /* The rotator will copy the current display frame next time */
2074 ctx->display_idx = display_idx;
2075 }
2076
2077 const struct coda_context_ops coda_bit_decode_ops = {
2078 .queue_init = coda_decoder_queue_init,
2079 .reqbufs = coda_decoder_reqbufs,
2080 .start_streaming = coda_start_decoding,
2081 .prepare_run = coda_prepare_decode,
2082 .finish_run = coda_finish_decode,
2083 .seq_end_work = coda_seq_end_work,
2084 .release = coda_bit_release,
2085 };
2086
coda_irq_handler(int irq,void * data)2087 irqreturn_t coda_irq_handler(int irq, void *data)
2088 {
2089 struct coda_dev *dev = data;
2090 struct coda_ctx *ctx;
2091
2092 /* read status register to attend the IRQ */
2093 coda_read(dev, CODA_REG_BIT_INT_STATUS);
2094 coda_write(dev, CODA_REG_BIT_INT_CLEAR_SET,
2095 CODA_REG_BIT_INT_CLEAR);
2096
2097 ctx = v4l2_m2m_get_curr_priv(dev->m2m_dev);
2098 if (ctx == NULL) {
2099 v4l2_err(&dev->v4l2_dev,
2100 "Instance released before the end of transaction\n");
2101 mutex_unlock(&dev->coda_mutex);
2102 return IRQ_HANDLED;
2103 }
2104
2105 trace_coda_bit_done(ctx);
2106
2107 if (ctx->aborting) {
2108 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
2109 "task has been aborted\n");
2110 }
2111
2112 if (coda_isbusy(ctx->dev)) {
2113 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
2114 "coda is still busy!!!!\n");
2115 return IRQ_NONE;
2116 }
2117
2118 complete(&ctx->completion);
2119
2120 return IRQ_HANDLED;
2121 }
2122