2 * Coda multi-standard codec IP
4 * Copyright (C) 2012 Vista Silicon S.L.
5 * Javier Martin, <javier.martin@vista-silicon.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
14 #include <linux/clk.h>
15 #include <linux/debugfs.h>
16 #include <linux/delay.h>
17 #include <linux/firmware.h>
18 #include <linux/genalloc.h>
19 #include <linux/interrupt.h>
21 #include <linux/irq.h>
22 #include <linux/kfifo.h>
23 #include <linux/module.h>
24 #include <linux/of_device.h>
25 #include <linux/platform_device.h>
26 #include <linux/pm_runtime.h>
27 #include <linux/slab.h>
28 #include <linux/videodev2.h>
30 #include <linux/platform_data/coda.h>
31 #include <linux/reset.h>
33 #include <media/v4l2-ctrls.h>
34 #include <media/v4l2-device.h>
35 #include <media/v4l2-event.h>
36 #include <media/v4l2-ioctl.h>
37 #include <media/v4l2-mem2mem.h>
38 #include <media/videobuf2-core.h>
39 #include <media/videobuf2-dma-contig.h>
43 #define CODA_NAME "coda"
45 #define CODADX6_MAX_INSTANCES 4
46 #define CODA_MAX_FORMATS 4
48 #define CODA_PARA_BUF_SIZE (10 * 1024)
49 #define CODA_ISRAM_SIZE (2048 * 2)
54 #define S_ALIGN 1 /* multiple of 2 */
55 #define W_ALIGN 1 /* multiple of 2 */
56 #define H_ALIGN 1 /* multiple of 2 */
58 #define fh_to_ctx(__fh) container_of(__fh, struct coda_ctx, fh)
61 module_param(coda_debug, int, 0644);
62 MODULE_PARM_DESC(coda_debug, "Debug level (0-2)");
69 void coda_write(struct coda_dev *dev, u32 data, u32 reg)
71 v4l2_dbg(2, coda_debug, &dev->v4l2_dev,
72 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
73 writel(data, dev->regs_base + reg);
76 unsigned int coda_read(struct coda_dev *dev, u32 reg)
80 data = readl(dev->regs_base + reg);
81 v4l2_dbg(2, coda_debug, &dev->v4l2_dev,
82 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
86 void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
87 struct vb2_buffer *buf, unsigned int reg_y)
89 u32 base_y = vb2_dma_contig_plane_dma_addr(buf, 0);
92 switch (q_data->fourcc) {
93 case V4L2_PIX_FMT_YVU420:
94 /* Switch Cb and Cr for YVU420 format */
95 base_cr = base_y + q_data->bytesperline * q_data->height;
96 base_cb = base_cr + q_data->bytesperline * q_data->height / 4;
98 case V4L2_PIX_FMT_YUV420:
99 case V4L2_PIX_FMT_NV12:
101 base_cb = base_y + q_data->bytesperline * q_data->height;
102 base_cr = base_cb + q_data->bytesperline * q_data->height / 4;
104 case V4L2_PIX_FMT_YUV422P:
105 base_cb = base_y + q_data->bytesperline * q_data->height;
106 base_cr = base_cb + q_data->bytesperline * q_data->height / 2;
109 coda_write(ctx->dev, base_y, reg_y);
110 coda_write(ctx->dev, base_cb, reg_y + 4);
111 coda_write(ctx->dev, base_cr, reg_y + 8);
115 * Array of all formats supported by any version of Coda:
117 static const struct coda_fmt coda_formats[] = {
119 .name = "YUV 4:2:0 Planar, YCbCr",
120 .fourcc = V4L2_PIX_FMT_YUV420,
123 .name = "YUV 4:2:0 Planar, YCrCb",
124 .fourcc = V4L2_PIX_FMT_YVU420,
127 .name = "YUV 4:2:0 Partial interleaved Y/CbCr",
128 .fourcc = V4L2_PIX_FMT_NV12,
131 .name = "YUV 4:2:2 Planar, YCbCr",
132 .fourcc = V4L2_PIX_FMT_YUV422P,
135 .name = "H264 Encoded Stream",
136 .fourcc = V4L2_PIX_FMT_H264,
139 .name = "MPEG4 Encoded Stream",
140 .fourcc = V4L2_PIX_FMT_MPEG4,
143 .name = "JPEG Encoded Images",
144 .fourcc = V4L2_PIX_FMT_JPEG,
148 #define CODA_CODEC(mode, src_fourcc, dst_fourcc, max_w, max_h) \
149 { mode, src_fourcc, dst_fourcc, max_w, max_h }
152 * Arrays of codecs supported by each given version of Coda:
156 * Use V4L2_PIX_FMT_YUV420 as placeholder for all supported YUV 4:2:0 variants
158 static const struct coda_codec codadx6_codecs[] = {
159 CODA_CODEC(CODADX6_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576),
160 CODA_CODEC(CODADX6_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 720, 576),
163 static const struct coda_codec coda7_codecs[] = {
164 CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1280, 720),
165 CODA_CODEC(CODA7_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1280, 720),
166 CODA_CODEC(CODA7_MODE_ENCODE_MJPG, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_JPEG, 8192, 8192),
167 CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
168 CODA_CODEC(CODA7_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
169 CODA_CODEC(CODA7_MODE_DECODE_MJPG, V4L2_PIX_FMT_JPEG, V4L2_PIX_FMT_YUV420, 8192, 8192),
172 static const struct coda_codec coda9_codecs[] = {
173 CODA_CODEC(CODA9_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1920, 1088),
174 CODA_CODEC(CODA9_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1920, 1088),
175 CODA_CODEC(CODA9_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
176 CODA_CODEC(CODA9_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
179 struct coda_video_device {
181 enum coda_inst_type type;
182 const struct coda_context_ops *ops;
183 u32 src_formats[CODA_MAX_FORMATS];
184 u32 dst_formats[CODA_MAX_FORMATS];
187 static const struct coda_video_device coda_bit_encoder = {
188 .name = "coda-encoder",
189 .type = CODA_INST_ENCODER,
190 .ops = &coda_bit_encode_ops,
202 static const struct coda_video_device coda_bit_jpeg_encoder = {
203 .name = "coda-jpeg-encoder",
204 .type = CODA_INST_ENCODER,
205 .ops = &coda_bit_encode_ops,
210 V4L2_PIX_FMT_YUV422P,
217 static const struct coda_video_device coda_bit_decoder = {
218 .name = "coda-decoder",
219 .type = CODA_INST_DECODER,
220 .ops = &coda_bit_decode_ops,
232 static const struct coda_video_device coda_bit_jpeg_decoder = {
233 .name = "coda-jpeg-decoder",
234 .type = CODA_INST_DECODER,
235 .ops = &coda_bit_decode_ops,
243 V4L2_PIX_FMT_YUV422P,
247 static const struct coda_video_device *codadx6_video_devices[] = {
251 static const struct coda_video_device *coda7_video_devices[] = {
252 &coda_bit_jpeg_encoder,
253 &coda_bit_jpeg_decoder,
258 static const struct coda_video_device *coda9_video_devices[] = {
263 static bool coda_format_is_yuv(u32 fourcc)
266 case V4L2_PIX_FMT_YUV420:
267 case V4L2_PIX_FMT_YVU420:
268 case V4L2_PIX_FMT_NV12:
269 case V4L2_PIX_FMT_YUV422P:
276 static const char *coda_format_name(u32 fourcc)
280 for (i = 0; i < ARRAY_SIZE(coda_formats); i++) {
281 if (coda_formats[i].fourcc == fourcc)
282 return coda_formats[i].name;
289 * Normalize all supported YUV 4:2:0 formats to the value used in the codec
292 static u32 coda_format_normalize_yuv(u32 fourcc)
294 return coda_format_is_yuv(fourcc) ? V4L2_PIX_FMT_YUV420 : fourcc;
297 static const struct coda_codec *coda_find_codec(struct coda_dev *dev,
298 int src_fourcc, int dst_fourcc)
300 const struct coda_codec *codecs = dev->devtype->codecs;
301 int num_codecs = dev->devtype->num_codecs;
304 src_fourcc = coda_format_normalize_yuv(src_fourcc);
305 dst_fourcc = coda_format_normalize_yuv(dst_fourcc);
306 if (src_fourcc == dst_fourcc)
309 for (k = 0; k < num_codecs; k++) {
310 if (codecs[k].src_fourcc == src_fourcc &&
311 codecs[k].dst_fourcc == dst_fourcc)
321 static void coda_get_max_dimensions(struct coda_dev *dev,
322 const struct coda_codec *codec,
323 int *max_w, int *max_h)
325 const struct coda_codec *codecs = dev->devtype->codecs;
326 int num_codecs = dev->devtype->num_codecs;
334 for (k = 0, w = 0, h = 0; k < num_codecs; k++) {
335 w = max(w, codecs[k].max_w);
336 h = max(h, codecs[k].max_h);
346 const struct coda_video_device *to_coda_video_device(struct video_device *vdev)
348 struct coda_dev *dev = video_get_drvdata(vdev);
349 unsigned int i = vdev - dev->vfd;
351 if (i >= dev->devtype->num_vdevs)
354 return dev->devtype->vdevs[i];
357 const char *coda_product_name(int product)
369 snprintf(buf, sizeof(buf), "(0x%04x)", product);
375 * V4L2 ioctl() operations.
377 static int coda_querycap(struct file *file, void *priv,
378 struct v4l2_capability *cap)
380 struct coda_ctx *ctx = fh_to_ctx(priv);
382 strlcpy(cap->driver, CODA_NAME, sizeof(cap->driver));
383 strlcpy(cap->card, coda_product_name(ctx->dev->devtype->product),
385 strlcpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
386 cap->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
387 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
392 static int coda_enum_fmt(struct file *file, void *priv,
393 struct v4l2_fmtdesc *f)
395 struct video_device *vdev = video_devdata(file);
396 const struct coda_video_device *cvd = to_coda_video_device(vdev);
400 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
401 formats = cvd->src_formats;
402 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
403 formats = cvd->dst_formats;
407 if (f->index >= CODA_MAX_FORMATS || formats[f->index] == 0)
410 name = coda_format_name(formats[f->index]);
411 strlcpy(f->description, name, sizeof(f->description));
412 f->pixelformat = formats[f->index];
413 if (!coda_format_is_yuv(formats[f->index]))
414 f->flags |= V4L2_FMT_FLAG_COMPRESSED;
419 static int coda_g_fmt(struct file *file, void *priv,
420 struct v4l2_format *f)
422 struct coda_q_data *q_data;
423 struct coda_ctx *ctx = fh_to_ctx(priv);
425 q_data = get_q_data(ctx, f->type);
429 f->fmt.pix.field = V4L2_FIELD_NONE;
430 f->fmt.pix.pixelformat = q_data->fourcc;
431 f->fmt.pix.width = q_data->width;
432 f->fmt.pix.height = q_data->height;
433 f->fmt.pix.bytesperline = q_data->bytesperline;
435 f->fmt.pix.sizeimage = q_data->sizeimage;
436 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_JPEG)
437 f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
439 f->fmt.pix.colorspace = ctx->colorspace;
444 static int coda_try_pixelformat(struct coda_ctx *ctx, struct v4l2_format *f)
446 struct coda_q_data *q_data;
450 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
451 formats = ctx->cvd->src_formats;
452 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
453 formats = ctx->cvd->dst_formats;
457 for (i = 0; i < CODA_MAX_FORMATS; i++) {
458 if (formats[i] == f->fmt.pix.pixelformat) {
459 f->fmt.pix.pixelformat = formats[i];
464 /* Fall back to currently set pixelformat */
465 q_data = get_q_data(ctx, f->type);
466 f->fmt.pix.pixelformat = q_data->fourcc;
471 static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
472 struct v4l2_format *f)
474 struct coda_dev *dev = ctx->dev;
475 unsigned int max_w, max_h;
476 enum v4l2_field field;
478 field = f->fmt.pix.field;
479 if (field == V4L2_FIELD_ANY)
480 field = V4L2_FIELD_NONE;
481 else if (V4L2_FIELD_NONE != field)
484 /* V4L2 specification suggests the driver corrects the format struct
485 * if any of the dimensions is unsupported */
486 f->fmt.pix.field = field;
488 coda_get_max_dimensions(dev, codec, &max_w, &max_h);
489 v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w, W_ALIGN,
490 &f->fmt.pix.height, MIN_H, max_h, H_ALIGN,
493 switch (f->fmt.pix.pixelformat) {
494 case V4L2_PIX_FMT_YUV420:
495 case V4L2_PIX_FMT_YVU420:
496 case V4L2_PIX_FMT_NV12:
498 * Frame stride must be at least multiple of 8,
499 * but multiple of 16 for h.264 or JPEG 4:2:x
501 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
502 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
503 f->fmt.pix.height * 3 / 2;
505 case V4L2_PIX_FMT_YUV422P:
506 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
507 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
508 f->fmt.pix.height * 2;
510 case V4L2_PIX_FMT_JPEG:
511 f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
513 case V4L2_PIX_FMT_H264:
514 case V4L2_PIX_FMT_MPEG4:
515 f->fmt.pix.bytesperline = 0;
517 * This is a rough estimate for sensible compressed buffer
518 * sizes (between 1 and 16 bits per pixel). This could be
519 * improved by better format specific worst case estimates.
521 f->fmt.pix.sizeimage = round_up(clamp(f->fmt.pix.sizeimage,
522 f->fmt.pix.width * f->fmt.pix.height / 8,
523 f->fmt.pix.width * f->fmt.pix.height * 2),
533 static int coda_try_fmt_vid_cap(struct file *file, void *priv,
534 struct v4l2_format *f)
536 struct coda_ctx *ctx = fh_to_ctx(priv);
537 const struct coda_q_data *q_data_src;
538 const struct coda_codec *codec;
539 struct vb2_queue *src_vq;
542 ret = coda_try_pixelformat(ctx, f);
546 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
549 * If the source format is already fixed, only allow the same output
552 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
553 if (vb2_is_streaming(src_vq)) {
554 f->fmt.pix.width = q_data_src->width;
555 f->fmt.pix.height = q_data_src->height;
558 f->fmt.pix.colorspace = ctx->colorspace;
560 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
561 codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
562 f->fmt.pix.pixelformat);
566 ret = coda_try_fmt(ctx, codec, f);
570 /* The h.264 decoder only returns complete 16x16 macroblocks */
571 if (codec && codec->src_fourcc == V4L2_PIX_FMT_H264) {
572 f->fmt.pix.width = f->fmt.pix.width;
573 f->fmt.pix.height = round_up(f->fmt.pix.height, 16);
574 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
575 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
576 f->fmt.pix.height * 3 / 2;
582 static int coda_try_fmt_vid_out(struct file *file, void *priv,
583 struct v4l2_format *f)
585 struct coda_ctx *ctx = fh_to_ctx(priv);
586 struct coda_dev *dev = ctx->dev;
587 const struct coda_q_data *q_data_dst;
588 const struct coda_codec *codec;
591 ret = coda_try_pixelformat(ctx, f);
595 if (!f->fmt.pix.colorspace) {
596 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_JPEG)
597 f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
599 f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
602 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
603 codec = coda_find_codec(dev, f->fmt.pix.pixelformat, q_data_dst->fourcc);
605 return coda_try_fmt(ctx, codec, f);
608 static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
610 struct coda_q_data *q_data;
611 struct vb2_queue *vq;
613 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
617 q_data = get_q_data(ctx, f->type);
621 if (vb2_is_busy(vq)) {
622 v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__);
626 q_data->fourcc = f->fmt.pix.pixelformat;
627 q_data->width = f->fmt.pix.width;
628 q_data->height = f->fmt.pix.height;
629 q_data->bytesperline = f->fmt.pix.bytesperline;
630 q_data->sizeimage = f->fmt.pix.sizeimage;
631 q_data->rect.left = 0;
632 q_data->rect.top = 0;
633 q_data->rect.width = f->fmt.pix.width;
634 q_data->rect.height = f->fmt.pix.height;
636 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
637 "Setting format for type %d, wxh: %dx%d, fmt: %d\n",
638 f->type, q_data->width, q_data->height, q_data->fourcc);
643 static int coda_s_fmt_vid_cap(struct file *file, void *priv,
644 struct v4l2_format *f)
646 struct coda_ctx *ctx = fh_to_ctx(priv);
649 ret = coda_try_fmt_vid_cap(file, priv, f);
653 return coda_s_fmt(ctx, f);
656 static int coda_s_fmt_vid_out(struct file *file, void *priv,
657 struct v4l2_format *f)
659 struct coda_ctx *ctx = fh_to_ctx(priv);
660 struct v4l2_format f_cap;
663 ret = coda_try_fmt_vid_out(file, priv, f);
667 ret = coda_s_fmt(ctx, f);
671 ctx->colorspace = f->fmt.pix.colorspace;
673 f_cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
674 coda_g_fmt(file, priv, &f_cap);
675 f_cap.fmt.pix.width = f->fmt.pix.width;
676 f_cap.fmt.pix.height = f->fmt.pix.height;
678 ret = coda_try_fmt_vid_cap(file, priv, &f_cap);
682 return coda_s_fmt(ctx, &f_cap);
685 static int coda_qbuf(struct file *file, void *priv,
686 struct v4l2_buffer *buf)
688 struct coda_ctx *ctx = fh_to_ctx(priv);
690 return v4l2_m2m_qbuf(file, ctx->fh.m2m_ctx, buf);
693 static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx,
694 struct v4l2_buffer *buf)
696 struct vb2_queue *src_vq;
698 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
700 return ((ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) &&
701 (buf->sequence == (ctx->qsequence - 1)));
704 static int coda_dqbuf(struct file *file, void *priv,
705 struct v4l2_buffer *buf)
707 struct coda_ctx *ctx = fh_to_ctx(priv);
710 ret = v4l2_m2m_dqbuf(file, ctx->fh.m2m_ctx, buf);
712 /* If this is the last capture buffer, emit an end-of-stream event */
713 if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
714 coda_buf_is_end_of_stream(ctx, buf)) {
715 const struct v4l2_event eos_event = {
716 .type = V4L2_EVENT_EOS
719 v4l2_event_queue_fh(&ctx->fh, &eos_event);
725 static int coda_g_selection(struct file *file, void *fh,
726 struct v4l2_selection *s)
728 struct coda_ctx *ctx = fh_to_ctx(fh);
729 struct coda_q_data *q_data;
730 struct v4l2_rect r, *rsel;
732 q_data = get_q_data(ctx, s->type);
738 r.width = q_data->width;
739 r.height = q_data->height;
740 rsel = &q_data->rect;
743 case V4L2_SEL_TGT_CROP_DEFAULT:
744 case V4L2_SEL_TGT_CROP_BOUNDS:
747 case V4L2_SEL_TGT_CROP:
748 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
751 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
752 case V4L2_SEL_TGT_COMPOSE_PADDED:
755 case V4L2_SEL_TGT_COMPOSE:
756 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
757 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
769 static int coda_try_decoder_cmd(struct file *file, void *fh,
770 struct v4l2_decoder_cmd *dc)
772 if (dc->cmd != V4L2_DEC_CMD_STOP)
775 if (dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK)
778 if (!(dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY) && (dc->stop.pts != 0))
784 static int coda_decoder_cmd(struct file *file, void *fh,
785 struct v4l2_decoder_cmd *dc)
787 struct coda_ctx *ctx = fh_to_ctx(fh);
790 ret = coda_try_decoder_cmd(file, fh, dc);
794 /* Ignore decoder stop command silently in encoder context */
795 if (ctx->inst_type != CODA_INST_DECODER)
798 /* Set the stream-end flag on this context */
799 coda_bit_stream_end_flag(ctx);
801 v4l2_m2m_try_schedule(ctx->fh.m2m_ctx);
806 static int coda_subscribe_event(struct v4l2_fh *fh,
807 const struct v4l2_event_subscription *sub)
811 return v4l2_event_subscribe(fh, sub, 0, NULL);
813 return v4l2_ctrl_subscribe_event(fh, sub);
817 static const struct v4l2_ioctl_ops coda_ioctl_ops = {
818 .vidioc_querycap = coda_querycap,
820 .vidioc_enum_fmt_vid_cap = coda_enum_fmt,
821 .vidioc_g_fmt_vid_cap = coda_g_fmt,
822 .vidioc_try_fmt_vid_cap = coda_try_fmt_vid_cap,
823 .vidioc_s_fmt_vid_cap = coda_s_fmt_vid_cap,
825 .vidioc_enum_fmt_vid_out = coda_enum_fmt,
826 .vidioc_g_fmt_vid_out = coda_g_fmt,
827 .vidioc_try_fmt_vid_out = coda_try_fmt_vid_out,
828 .vidioc_s_fmt_vid_out = coda_s_fmt_vid_out,
830 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
831 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
833 .vidioc_qbuf = coda_qbuf,
834 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
835 .vidioc_dqbuf = coda_dqbuf,
836 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
838 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
839 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
841 .vidioc_g_selection = coda_g_selection,
843 .vidioc_try_decoder_cmd = coda_try_decoder_cmd,
844 .vidioc_decoder_cmd = coda_decoder_cmd,
846 .vidioc_subscribe_event = coda_subscribe_event,
847 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
850 void coda_set_gdi_regs(struct coda_ctx *ctx)
852 struct gdi_tiled_map *tiled_map = &ctx->tiled_map;
853 struct coda_dev *dev = ctx->dev;
856 for (i = 0; i < 16; i++)
857 coda_write(dev, tiled_map->xy2ca_map[i],
858 CODA9_GDI_XY2_CAS_0 + 4 * i);
859 for (i = 0; i < 4; i++)
860 coda_write(dev, tiled_map->xy2ba_map[i],
861 CODA9_GDI_XY2_BA_0 + 4 * i);
862 for (i = 0; i < 16; i++)
863 coda_write(dev, tiled_map->xy2ra_map[i],
864 CODA9_GDI_XY2_RAS_0 + 4 * i);
865 coda_write(dev, tiled_map->xy2rbc_config, CODA9_GDI_XY2_RBC_CONFIG);
866 for (i = 0; i < 32; i++)
867 coda_write(dev, tiled_map->rbc2axi_map[i],
868 CODA9_GDI_RBC2_AXI_0 + 4 * i);
872 * Mem-to-mem operations.
875 static void coda_device_run(void *m2m_priv)
877 struct coda_ctx *ctx = m2m_priv;
878 struct coda_dev *dev = ctx->dev;
880 queue_work(dev->workqueue, &ctx->pic_run_work);
883 static void coda_pic_run_work(struct work_struct *work)
885 struct coda_ctx *ctx = container_of(work, struct coda_ctx, pic_run_work);
886 struct coda_dev *dev = ctx->dev;
889 mutex_lock(&ctx->buffer_mutex);
890 mutex_lock(&dev->coda_mutex);
892 ret = ctx->ops->prepare_run(ctx);
893 if (ret < 0 && ctx->inst_type == CODA_INST_DECODER) {
894 mutex_unlock(&dev->coda_mutex);
895 mutex_unlock(&ctx->buffer_mutex);
896 /* job_finish scheduled by prepare_decode */
900 if (!wait_for_completion_timeout(&ctx->completion,
901 msecs_to_jiffies(1000))) {
902 dev_err(&dev->plat_dev->dev, "CODA PIC_RUN timeout\n");
907 } else if (!ctx->aborting) {
908 ctx->ops->finish_run(ctx);
911 if (ctx->aborting || (!ctx->streamon_cap && !ctx->streamon_out))
912 queue_work(dev->workqueue, &ctx->seq_end_work);
914 mutex_unlock(&dev->coda_mutex);
915 mutex_unlock(&ctx->buffer_mutex);
917 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
920 static int coda_job_ready(void *m2m_priv)
922 struct coda_ctx *ctx = m2m_priv;
925 * For both 'P' and 'key' frame cases 1 picture
926 * and 1 frame are needed. In the decoder case,
927 * the compressed frame can be in the bitstream.
929 if (!v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) &&
930 ctx->inst_type != CODA_INST_DECODER) {
931 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
932 "not ready: not enough video buffers.\n");
936 if (!v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx)) {
937 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
938 "not ready: not enough video capture buffers.\n");
943 ((ctx->inst_type == CODA_INST_DECODER) &&
944 !v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) &&
945 (coda_get_bitstream_payload(ctx) < 512) &&
946 !(ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG))) {
947 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
948 "%d: not ready: not enough bitstream data.\n",
954 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
955 "not ready: aborting\n");
959 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
964 static void coda_job_abort(void *priv)
966 struct coda_ctx *ctx = priv;
970 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
974 static void coda_lock(void *m2m_priv)
976 struct coda_ctx *ctx = m2m_priv;
977 struct coda_dev *pcdev = ctx->dev;
979 mutex_lock(&pcdev->dev_mutex);
982 static void coda_unlock(void *m2m_priv)
984 struct coda_ctx *ctx = m2m_priv;
985 struct coda_dev *pcdev = ctx->dev;
987 mutex_unlock(&pcdev->dev_mutex);
990 static const struct v4l2_m2m_ops coda_m2m_ops = {
991 .device_run = coda_device_run,
992 .job_ready = coda_job_ready,
993 .job_abort = coda_job_abort,
995 .unlock = coda_unlock,
998 static void coda_set_tiled_map_type(struct coda_ctx *ctx, int tiled_map_type)
1000 struct gdi_tiled_map *tiled_map = &ctx->tiled_map;
1001 int luma_map, chro_map, i;
1003 memset(tiled_map, 0, sizeof(*tiled_map));
1007 tiled_map->map_type = tiled_map_type;
1008 for (i = 0; i < 16; i++)
1009 tiled_map->xy2ca_map[i] = luma_map << 8 | chro_map;
1010 for (i = 0; i < 4; i++)
1011 tiled_map->xy2ba_map[i] = luma_map << 8 | chro_map;
1012 for (i = 0; i < 16; i++)
1013 tiled_map->xy2ra_map[i] = luma_map << 8 | chro_map;
1015 if (tiled_map_type == GDI_LINEAR_FRAME_MAP) {
1016 tiled_map->xy2rbc_config = 0;
1018 dev_err(&ctx->dev->plat_dev->dev, "invalid map type: %d\n",
1024 static void set_default_params(struct coda_ctx *ctx)
1026 unsigned int max_w, max_h, size;
1028 ctx->codec = coda_find_codec(ctx->dev, ctx->cvd->src_formats[0],
1029 ctx->cvd->dst_formats[0]);
1030 max_w = min(ctx->codec->max_w, 1920U);
1031 max_h = min(ctx->codec->max_h, 1088U);
1032 size = max_w * max_h * 3 / 2;
1034 ctx->params.codec_mode = ctx->codec->mode;
1035 ctx->colorspace = V4L2_COLORSPACE_REC709;
1036 ctx->params.framerate = 30;
1038 /* Default formats for output and input queues */
1039 ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->codec->src_fourcc;
1040 ctx->q_data[V4L2_M2M_DST].fourcc = ctx->codec->dst_fourcc;
1041 ctx->q_data[V4L2_M2M_SRC].width = max_w;
1042 ctx->q_data[V4L2_M2M_SRC].height = max_h;
1043 ctx->q_data[V4L2_M2M_DST].width = max_w;
1044 ctx->q_data[V4L2_M2M_DST].height = max_h;
1045 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_YUV420) {
1046 ctx->q_data[V4L2_M2M_SRC].bytesperline = max_w;
1047 ctx->q_data[V4L2_M2M_SRC].sizeimage = size;
1048 ctx->q_data[V4L2_M2M_DST].bytesperline = 0;
1049 ctx->q_data[V4L2_M2M_DST].sizeimage = round_up(size, PAGE_SIZE);
1051 ctx->q_data[V4L2_M2M_SRC].bytesperline = 0;
1052 ctx->q_data[V4L2_M2M_SRC].sizeimage = round_up(size, PAGE_SIZE);
1053 ctx->q_data[V4L2_M2M_DST].bytesperline = max_w;
1054 ctx->q_data[V4L2_M2M_DST].sizeimage = size;
1056 ctx->q_data[V4L2_M2M_SRC].rect.width = max_w;
1057 ctx->q_data[V4L2_M2M_SRC].rect.height = max_h;
1058 ctx->q_data[V4L2_M2M_DST].rect.width = max_w;
1059 ctx->q_data[V4L2_M2M_DST].rect.height = max_h;
1061 if (ctx->dev->devtype->product == CODA_960)
1062 coda_set_tiled_map_type(ctx, GDI_LINEAR_FRAME_MAP);
1068 static int coda_queue_setup(struct vb2_queue *vq,
1069 const struct v4l2_format *fmt,
1070 unsigned int *nbuffers, unsigned int *nplanes,
1071 unsigned int sizes[], void *alloc_ctxs[])
1073 struct coda_ctx *ctx = vb2_get_drv_priv(vq);
1074 struct coda_q_data *q_data;
1077 q_data = get_q_data(ctx, vq->type);
1078 size = q_data->sizeimage;
1083 alloc_ctxs[0] = ctx->dev->alloc_ctx;
1085 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1086 "get %d buffer(s) of size %d each.\n", *nbuffers, size);
1091 static int coda_buf_prepare(struct vb2_buffer *vb)
1093 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1094 struct coda_q_data *q_data;
1096 q_data = get_q_data(ctx, vb->vb2_queue->type);
1098 if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
1099 v4l2_warn(&ctx->dev->v4l2_dev,
1100 "%s data will not fit into plane (%lu < %lu)\n",
1101 __func__, vb2_plane_size(vb, 0),
1102 (long)q_data->sizeimage);
1109 static void coda_buf_queue(struct vb2_buffer *vb)
1111 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1112 struct coda_q_data *q_data;
1114 q_data = get_q_data(ctx, vb->vb2_queue->type);
1117 * In the decoder case, immediately try to copy the buffer into the
1118 * bitstream ringbuffer and mark it as ready to be dequeued.
1120 if (ctx->inst_type == CODA_INST_DECODER &&
1121 vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1123 * For backwards compatibility, queuing an empty buffer marks
1126 if (vb2_get_plane_payload(vb, 0) == 0)
1127 coda_bit_stream_end_flag(ctx);
1128 mutex_lock(&ctx->bitstream_mutex);
1129 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb);
1130 if (vb2_is_streaming(vb->vb2_queue))
1131 coda_fill_bitstream(ctx);
1132 mutex_unlock(&ctx->bitstream_mutex);
1134 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb);
1138 int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
1139 size_t size, const char *name, struct dentry *parent)
1141 buf->vaddr = dma_alloc_coherent(&dev->plat_dev->dev, size, &buf->paddr,
1144 v4l2_err(&dev->v4l2_dev,
1145 "Failed to allocate %s buffer of size %u\n",
1152 if (name && parent) {
1153 buf->blob.data = buf->vaddr;
1154 buf->blob.size = size;
1155 buf->dentry = debugfs_create_blob(name, 0644, parent,
1158 dev_warn(&dev->plat_dev->dev,
1159 "failed to create debugfs entry %s\n", name);
1165 void coda_free_aux_buf(struct coda_dev *dev,
1166 struct coda_aux_buf *buf)
1169 dma_free_coherent(&dev->plat_dev->dev, buf->size,
1170 buf->vaddr, buf->paddr);
1174 debugfs_remove(buf->dentry);
1177 static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
1179 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1180 struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev;
1181 struct coda_q_data *q_data_src, *q_data_dst;
1182 struct vb2_buffer *buf;
1185 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1186 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1187 if (q_data_src->fourcc == V4L2_PIX_FMT_H264 ||
1188 (q_data_src->fourcc == V4L2_PIX_FMT_JPEG &&
1189 ctx->dev->devtype->product == CODA_7541)) {
1190 /* copy the buffers that where queued before streamon */
1191 mutex_lock(&ctx->bitstream_mutex);
1192 coda_fill_bitstream(ctx);
1193 mutex_unlock(&ctx->bitstream_mutex);
1195 if (coda_get_bitstream_payload(ctx) < 512) {
1206 ctx->streamon_out = 1;
1213 ctx->streamon_cap = 1;
1216 /* Don't start the coda unless both queues are on */
1217 if (!(ctx->streamon_out & ctx->streamon_cap))
1220 /* Allow BIT decoder device_run with no new buffers queued */
1221 if (ctx->inst_type == CODA_INST_DECODER)
1222 v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true);
1224 ctx->gopcounter = ctx->params.gop_size - 1;
1225 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1227 ctx->codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
1228 q_data_dst->fourcc);
1230 v4l2_err(v4l2_dev, "couldn't tell instance type.\n");
1235 if (q_data_dst->fourcc == V4L2_PIX_FMT_JPEG)
1236 ctx->params.gop_size = 1;
1237 ctx->gopcounter = ctx->params.gop_size - 1;
1239 ret = ctx->ops->start_streaming(ctx);
1240 if (ctx->inst_type == CODA_INST_DECODER) {
1247 ctx->initialized = 1;
1251 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1252 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1253 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1255 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1256 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1261 static void coda_stop_streaming(struct vb2_queue *q)
1263 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1264 struct coda_dev *dev = ctx->dev;
1265 struct vb2_buffer *buf;
1267 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1268 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1269 "%s: output\n", __func__);
1270 ctx->streamon_out = 0;
1272 coda_bit_stream_end_flag(ctx);
1276 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1277 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1279 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1280 "%s: capture\n", __func__);
1281 ctx->streamon_cap = 0;
1284 ctx->sequence_offset = 0;
1286 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1287 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1290 if (!ctx->streamon_out && !ctx->streamon_cap) {
1291 struct coda_buffer_meta *meta;
1293 mutex_lock(&ctx->bitstream_mutex);
1294 while (!list_empty(&ctx->buffer_meta_list)) {
1295 meta = list_first_entry(&ctx->buffer_meta_list,
1296 struct coda_buffer_meta, list);
1297 list_del(&meta->list);
1300 mutex_unlock(&ctx->bitstream_mutex);
1301 kfifo_init(&ctx->bitstream_fifo,
1302 ctx->bitstream.vaddr, ctx->bitstream.size);
1303 ctx->runcounter = 0;
1308 static const struct vb2_ops coda_qops = {
1309 .queue_setup = coda_queue_setup,
1310 .buf_prepare = coda_buf_prepare,
1311 .buf_queue = coda_buf_queue,
1312 .start_streaming = coda_start_streaming,
1313 .stop_streaming = coda_stop_streaming,
1314 .wait_prepare = vb2_ops_wait_prepare,
1315 .wait_finish = vb2_ops_wait_finish,
1318 static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
1320 struct coda_ctx *ctx =
1321 container_of(ctrl->handler, struct coda_ctx, ctrls);
1323 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1324 "s_ctrl: id = %d, val = %d\n", ctrl->id, ctrl->val);
1327 case V4L2_CID_HFLIP:
1329 ctx->params.rot_mode |= CODA_MIR_HOR;
1331 ctx->params.rot_mode &= ~CODA_MIR_HOR;
1333 case V4L2_CID_VFLIP:
1335 ctx->params.rot_mode |= CODA_MIR_VER;
1337 ctx->params.rot_mode &= ~CODA_MIR_VER;
1339 case V4L2_CID_MPEG_VIDEO_BITRATE:
1340 ctx->params.bitrate = ctrl->val / 1000;
1342 case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
1343 ctx->params.gop_size = ctrl->val;
1345 case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
1346 ctx->params.h264_intra_qp = ctrl->val;
1348 case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
1349 ctx->params.h264_inter_qp = ctrl->val;
1351 case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
1352 ctx->params.h264_min_qp = ctrl->val;
1354 case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
1355 ctx->params.h264_max_qp = ctrl->val;
1357 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA:
1358 ctx->params.h264_deblk_alpha = ctrl->val;
1360 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA:
1361 ctx->params.h264_deblk_beta = ctrl->val;
1363 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
1364 ctx->params.h264_deblk_enabled = (ctrl->val ==
1365 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
1367 case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
1368 ctx->params.mpeg4_intra_qp = ctrl->val;
1370 case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
1371 ctx->params.mpeg4_inter_qp = ctrl->val;
1373 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
1374 ctx->params.slice_mode = ctrl->val;
1376 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
1377 ctx->params.slice_max_mb = ctrl->val;
1379 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
1380 ctx->params.slice_max_bits = ctrl->val * 8;
1382 case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
1384 case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB:
1385 ctx->params.intra_refresh = ctrl->val;
1387 case V4L2_CID_JPEG_COMPRESSION_QUALITY:
1388 coda_set_jpeg_compression_quality(ctx, ctrl->val);
1390 case V4L2_CID_JPEG_RESTART_INTERVAL:
1391 ctx->params.jpeg_restart_interval = ctrl->val;
1394 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1395 "Invalid control, id=%d, val=%d\n",
1396 ctrl->id, ctrl->val);
1403 static const struct v4l2_ctrl_ops coda_ctrl_ops = {
1404 .s_ctrl = coda_s_ctrl,
1407 static void coda_encode_ctrls(struct coda_ctx *ctx)
1409 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1410 V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1, 0);
1411 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1412 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 60, 1, 16);
1413 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1414 V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 0, 51, 1, 25);
1415 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1416 V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 0, 51, 1, 25);
1417 if (ctx->dev->devtype->product != CODA_960) {
1418 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1419 V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 51, 1, 12);
1421 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1422 V4L2_CID_MPEG_VIDEO_H264_MAX_QP, 0, 51, 1, 51);
1423 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1424 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA, 0, 15, 1, 0);
1425 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1426 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA, 0, 15, 1, 0);
1427 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1428 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
1429 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED, 0x0,
1430 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
1431 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1432 V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
1433 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1434 V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
1435 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1436 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
1437 V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES, 0x0,
1438 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
1439 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1440 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
1441 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1442 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1,
1444 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1445 V4L2_CID_MPEG_VIDEO_HEADER_MODE,
1446 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
1447 (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE),
1448 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
1449 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1450 V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB, 0,
1451 1920 * 1088 / 256, 1, 0);
1454 static void coda_jpeg_encode_ctrls(struct coda_ctx *ctx)
1456 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1457 V4L2_CID_JPEG_COMPRESSION_QUALITY, 5, 100, 1, 50);
1458 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1459 V4L2_CID_JPEG_RESTART_INTERVAL, 0, 100, 1, 0);
1462 static int coda_ctrls_setup(struct coda_ctx *ctx)
1464 v4l2_ctrl_handler_init(&ctx->ctrls, 2);
1466 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1467 V4L2_CID_HFLIP, 0, 1, 1, 0);
1468 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1469 V4L2_CID_VFLIP, 0, 1, 1, 0);
1470 if (ctx->inst_type == CODA_INST_ENCODER) {
1471 if (ctx->cvd->dst_formats[0] == V4L2_PIX_FMT_JPEG)
1472 coda_jpeg_encode_ctrls(ctx);
1474 coda_encode_ctrls(ctx);
1477 if (ctx->ctrls.error) {
1478 v4l2_err(&ctx->dev->v4l2_dev,
1479 "control initialization error (%d)",
1484 return v4l2_ctrl_handler_setup(&ctx->ctrls);
1487 static int coda_queue_init(struct coda_ctx *ctx, struct vb2_queue *vq)
1490 vq->ops = &coda_qops;
1491 vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
1492 vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1493 vq->lock = &ctx->dev->dev_mutex;
1495 return vb2_queue_init(vq);
1498 int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
1499 struct vb2_queue *dst_vq)
1503 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1504 src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
1505 src_vq->mem_ops = &vb2_dma_contig_memops;
1507 ret = coda_queue_init(priv, src_vq);
1511 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1512 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
1513 dst_vq->mem_ops = &vb2_dma_contig_memops;
1515 return coda_queue_init(priv, dst_vq);
1518 int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
1519 struct vb2_queue *dst_vq)
1523 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1524 src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
1525 src_vq->mem_ops = &vb2_dma_contig_memops;
1527 ret = coda_queue_init(priv, src_vq);
1531 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1532 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
1533 dst_vq->mem_ops = &vb2_dma_contig_memops;
1535 return coda_queue_init(priv, dst_vq);
1538 static int coda_next_free_instance(struct coda_dev *dev)
1540 int idx = ffz(dev->instance_mask);
1543 (dev->devtype->product == CODA_DX6 && idx > CODADX6_MAX_INSTANCES))
1553 static int coda_open(struct file *file)
1555 struct video_device *vdev = video_devdata(file);
1556 struct coda_dev *dev = video_get_drvdata(vdev);
1557 struct coda_ctx *ctx = NULL;
1562 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
1566 idx = coda_next_free_instance(dev);
1571 set_bit(idx, &dev->instance_mask);
1573 name = kasprintf(GFP_KERNEL, "context%d", idx);
1574 ctx->debugfs_entry = debugfs_create_dir(name, dev->debugfs_root);
1577 ctx->cvd = to_coda_video_device(vdev);
1578 ctx->inst_type = ctx->cvd->type;
1579 ctx->ops = ctx->cvd->ops;
1580 init_completion(&ctx->completion);
1581 INIT_WORK(&ctx->pic_run_work, coda_pic_run_work);
1582 INIT_WORK(&ctx->seq_end_work, ctx->ops->seq_end_work);
1583 v4l2_fh_init(&ctx->fh, video_devdata(file));
1584 file->private_data = &ctx->fh;
1585 v4l2_fh_add(&ctx->fh);
1588 switch (dev->devtype->product) {
1590 ctx->frame_mem_ctrl = 1 << 12;
1599 /* Power up and upload firmware if necessary */
1600 ret = pm_runtime_get_sync(&dev->plat_dev->dev);
1602 v4l2_err(&dev->v4l2_dev, "failed to power up: %d\n", ret);
1606 ret = clk_prepare_enable(dev->clk_per);
1610 ret = clk_prepare_enable(dev->clk_ahb);
1614 set_default_params(ctx);
1615 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
1616 ctx->ops->queue_init);
1617 if (IS_ERR(ctx->fh.m2m_ctx)) {
1618 ret = PTR_ERR(ctx->fh.m2m_ctx);
1620 v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
1625 ret = coda_ctrls_setup(ctx);
1627 v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
1628 goto err_ctrls_setup;
1631 ctx->fh.ctrl_handler = &ctx->ctrls;
1633 ret = coda_alloc_context_buf(ctx, &ctx->parabuf,
1634 CODA_PARA_BUF_SIZE, "parabuf");
1636 v4l2_err(&dev->v4l2_dev, "failed to allocate parabuf");
1640 ctx->bitstream.size = CODA_MAX_FRAME_SIZE;
1641 ctx->bitstream.vaddr = dma_alloc_writecombine(
1642 &dev->plat_dev->dev, ctx->bitstream.size,
1643 &ctx->bitstream.paddr, GFP_KERNEL);
1644 if (!ctx->bitstream.vaddr) {
1645 v4l2_err(&dev->v4l2_dev,
1646 "failed to allocate bitstream ringbuffer");
1648 goto err_dma_writecombine;
1650 kfifo_init(&ctx->bitstream_fifo,
1651 ctx->bitstream.vaddr, ctx->bitstream.size);
1652 mutex_init(&ctx->bitstream_mutex);
1653 mutex_init(&ctx->buffer_mutex);
1654 INIT_LIST_HEAD(&ctx->buffer_meta_list);
1657 list_add(&ctx->list, &dev->instances);
1660 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Created instance %d (%p)\n",
1665 err_dma_writecombine:
1666 if (ctx->dev->devtype->product == CODA_DX6)
1667 coda_free_aux_buf(dev, &ctx->workbuf);
1668 coda_free_aux_buf(dev, &ctx->parabuf);
1670 v4l2_ctrl_handler_free(&ctx->ctrls);
1672 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
1674 clk_disable_unprepare(dev->clk_ahb);
1676 clk_disable_unprepare(dev->clk_per);
1678 pm_runtime_put_sync(&dev->plat_dev->dev);
1680 v4l2_fh_del(&ctx->fh);
1681 v4l2_fh_exit(&ctx->fh);
1682 clear_bit(ctx->idx, &dev->instance_mask);
1688 static int coda_release(struct file *file)
1690 struct coda_dev *dev = video_drvdata(file);
1691 struct coda_ctx *ctx = fh_to_ctx(file->private_data);
1693 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Releasing instance %p\n",
1696 debugfs_remove_recursive(ctx->debugfs_entry);
1698 if (ctx->inst_type == CODA_INST_DECODER)
1699 coda_bit_stream_end_flag(ctx);
1701 /* If this instance is running, call .job_abort and wait for it to end */
1702 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
1704 /* In case the instance was not running, we still need to call SEQ_END */
1705 if (ctx->initialized) {
1706 queue_work(dev->workqueue, &ctx->seq_end_work);
1707 flush_work(&ctx->seq_end_work);
1711 list_del(&ctx->list);
1714 if (ctx->bitstream.vaddr) {
1715 dma_free_writecombine(&dev->plat_dev->dev, ctx->bitstream.size,
1716 ctx->bitstream.vaddr, ctx->bitstream.paddr);
1718 if (ctx->dev->devtype->product == CODA_DX6)
1719 coda_free_aux_buf(dev, &ctx->workbuf);
1721 coda_free_aux_buf(dev, &ctx->parabuf);
1722 v4l2_ctrl_handler_free(&ctx->ctrls);
1723 clk_disable_unprepare(dev->clk_ahb);
1724 clk_disable_unprepare(dev->clk_per);
1725 pm_runtime_put_sync(&dev->plat_dev->dev);
1726 v4l2_fh_del(&ctx->fh);
1727 v4l2_fh_exit(&ctx->fh);
1728 clear_bit(ctx->idx, &dev->instance_mask);
1729 if (ctx->ops->release)
1730 ctx->ops->release(ctx);
1736 static const struct v4l2_file_operations coda_fops = {
1737 .owner = THIS_MODULE,
1739 .release = coda_release,
1740 .poll = v4l2_m2m_fop_poll,
1741 .unlocked_ioctl = video_ioctl2,
1742 .mmap = v4l2_m2m_fop_mmap,
1745 static int coda_hw_init(struct coda_dev *dev)
1751 ret = clk_prepare_enable(dev->clk_per);
1755 ret = clk_prepare_enable(dev->clk_ahb);
1760 reset_control_reset(dev->rstc);
1763 * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
1764 * The 16-bit chars in the code buffer are in memory access
1765 * order, re-sort them to CODA order for register download.
1766 * Data in this SRAM survives a reboot.
1768 p = (u16 *)dev->codebuf.vaddr;
1769 if (dev->devtype->product == CODA_DX6) {
1770 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
1771 data = CODA_DOWN_ADDRESS_SET(i) |
1772 CODA_DOWN_DATA_SET(p[i ^ 1]);
1773 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
1776 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
1777 data = CODA_DOWN_ADDRESS_SET(i) |
1778 CODA_DOWN_DATA_SET(p[round_down(i, 4) +
1780 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
1784 /* Clear registers */
1785 for (i = 0; i < 64; i++)
1786 coda_write(dev, 0, CODA_REG_BIT_CODE_BUF_ADDR + i * 4);
1788 /* Tell the BIT where to find everything it needs */
1789 if (dev->devtype->product == CODA_960 ||
1790 dev->devtype->product == CODA_7541) {
1791 coda_write(dev, dev->tempbuf.paddr,
1792 CODA_REG_BIT_TEMP_BUF_ADDR);
1793 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
1795 coda_write(dev, dev->workbuf.paddr,
1796 CODA_REG_BIT_WORK_BUF_ADDR);
1798 coda_write(dev, dev->codebuf.paddr,
1799 CODA_REG_BIT_CODE_BUF_ADDR);
1800 coda_write(dev, 0, CODA_REG_BIT_CODE_RUN);
1802 /* Set default values */
1803 switch (dev->devtype->product) {
1805 coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH,
1806 CODA_REG_BIT_STREAM_CTRL);
1809 coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH,
1810 CODA_REG_BIT_STREAM_CTRL);
1812 if (dev->devtype->product == CODA_960)
1813 coda_write(dev, 1 << 12, CODA_REG_BIT_FRAME_MEM_CTRL);
1815 coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL);
1817 if (dev->devtype->product != CODA_DX6)
1818 coda_write(dev, 0, CODA7_REG_BIT_AXI_SRAM_USE);
1820 coda_write(dev, CODA_INT_INTERRUPT_ENABLE,
1821 CODA_REG_BIT_INT_ENABLE);
1823 /* Reset VPU and start processor */
1824 data = coda_read(dev, CODA_REG_BIT_CODE_RESET);
1825 data |= CODA_REG_RESET_ENABLE;
1826 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
1828 data &= ~CODA_REG_RESET_ENABLE;
1829 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
1830 coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
1832 clk_disable_unprepare(dev->clk_ahb);
1833 clk_disable_unprepare(dev->clk_per);
1838 clk_disable_unprepare(dev->clk_per);
1843 static int coda_register_device(struct coda_dev *dev, int i)
1845 struct video_device *vfd = &dev->vfd[i];
1847 if (i > ARRAY_SIZE(dev->vfd))
1850 snprintf(vfd->name, sizeof(vfd->name), dev->devtype->vdevs[i]->name);
1851 vfd->fops = &coda_fops;
1852 vfd->ioctl_ops = &coda_ioctl_ops;
1853 vfd->release = video_device_release_empty,
1854 vfd->lock = &dev->dev_mutex;
1855 vfd->v4l2_dev = &dev->v4l2_dev;
1856 vfd->vfl_dir = VFL_DIR_M2M;
1857 video_set_drvdata(vfd, dev);
1859 /* Not applicable, use the selection API instead */
1860 v4l2_disable_ioctl(vfd, VIDIOC_CROPCAP);
1861 v4l2_disable_ioctl(vfd, VIDIOC_G_CROP);
1862 v4l2_disable_ioctl(vfd, VIDIOC_S_CROP);
1864 return video_register_device(vfd, VFL_TYPE_GRABBER, 0);
1867 static void coda_fw_callback(const struct firmware *fw, void *context)
1869 struct coda_dev *dev = context;
1870 struct platform_device *pdev = dev->plat_dev;
1874 v4l2_err(&dev->v4l2_dev, "firmware request failed\n");
1878 /* allocate auxiliary per-device code buffer for the BIT processor */
1879 ret = coda_alloc_aux_buf(dev, &dev->codebuf, fw->size, "codebuf",
1882 dev_err(&pdev->dev, "failed to allocate code buffer\n");
1886 /* Copy the whole firmware image to the code buffer */
1887 memcpy(dev->codebuf.vaddr, fw->data, fw->size);
1888 release_firmware(fw);
1890 ret = coda_hw_init(dev);
1892 v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
1896 ret = coda_check_firmware(dev);
1900 dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
1901 if (IS_ERR(dev->alloc_ctx)) {
1902 v4l2_err(&dev->v4l2_dev, "Failed to alloc vb2 context\n");
1906 dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops);
1907 if (IS_ERR(dev->m2m_dev)) {
1908 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
1912 for (i = 0; i < dev->devtype->num_vdevs; i++) {
1913 ret = coda_register_device(dev, i);
1915 v4l2_err(&dev->v4l2_dev,
1916 "Failed to register %s video device: %d\n",
1917 dev->devtype->vdevs[i]->name, ret);
1922 v4l2_info(&dev->v4l2_dev, "codec registered as /dev/video[%d-%d]\n",
1923 dev->vfd[0].num, dev->vfd[i - 1].num);
1925 pm_runtime_put_sync(&pdev->dev);
1930 video_unregister_device(&dev->vfd[i]);
1931 v4l2_m2m_release(dev->m2m_dev);
1933 vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
1935 pm_runtime_put_sync(&pdev->dev);
1938 static int coda_firmware_request(struct coda_dev *dev)
1940 char *fw = dev->devtype->firmware;
1942 dev_dbg(&dev->plat_dev->dev, "requesting firmware '%s' for %s\n", fw,
1943 coda_product_name(dev->devtype->product));
1945 return request_firmware_nowait(THIS_MODULE, true,
1946 fw, &dev->plat_dev->dev, GFP_KERNEL, dev, coda_fw_callback);
1949 enum coda_platform {
1956 static const struct coda_devtype coda_devdata[] = {
1958 .firmware = "v4l-codadx6-imx27.bin",
1959 .product = CODA_DX6,
1960 .codecs = codadx6_codecs,
1961 .num_codecs = ARRAY_SIZE(codadx6_codecs),
1962 .vdevs = codadx6_video_devices,
1963 .num_vdevs = ARRAY_SIZE(codadx6_video_devices),
1964 .workbuf_size = 288 * 1024 + FMO_SLICE_SAVE_BUF_SIZE * 8 * 1024,
1965 .iram_size = 0xb000,
1968 .firmware = "v4l-coda7541-imx53.bin",
1969 .product = CODA_7541,
1970 .codecs = coda7_codecs,
1971 .num_codecs = ARRAY_SIZE(coda7_codecs),
1972 .vdevs = coda7_video_devices,
1973 .num_vdevs = ARRAY_SIZE(coda7_video_devices),
1974 .workbuf_size = 128 * 1024,
1975 .tempbuf_size = 304 * 1024,
1976 .iram_size = 0x14000,
1979 .firmware = "v4l-coda960-imx6q.bin",
1980 .product = CODA_960,
1981 .codecs = coda9_codecs,
1982 .num_codecs = ARRAY_SIZE(coda9_codecs),
1983 .vdevs = coda9_video_devices,
1984 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
1985 .workbuf_size = 80 * 1024,
1986 .tempbuf_size = 204 * 1024,
1987 .iram_size = 0x21000,
1990 .firmware = "v4l-coda960-imx6dl.bin",
1991 .product = CODA_960,
1992 .codecs = coda9_codecs,
1993 .num_codecs = ARRAY_SIZE(coda9_codecs),
1994 .vdevs = coda9_video_devices,
1995 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
1996 .workbuf_size = 80 * 1024,
1997 .tempbuf_size = 204 * 1024,
1998 .iram_size = 0x20000,
2002 static struct platform_device_id coda_platform_ids[] = {
2003 { .name = "coda-imx27", .driver_data = CODA_IMX27 },
2004 { .name = "coda-imx53", .driver_data = CODA_IMX53 },
2007 MODULE_DEVICE_TABLE(platform, coda_platform_ids);
2010 static const struct of_device_id coda_dt_ids[] = {
2011 { .compatible = "fsl,imx27-vpu", .data = &coda_devdata[CODA_IMX27] },
2012 { .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] },
2013 { .compatible = "fsl,imx6q-vpu", .data = &coda_devdata[CODA_IMX6Q] },
2014 { .compatible = "fsl,imx6dl-vpu", .data = &coda_devdata[CODA_IMX6DL] },
2017 MODULE_DEVICE_TABLE(of, coda_dt_ids);
2020 static int coda_probe(struct platform_device *pdev)
2022 const struct of_device_id *of_id =
2023 of_match_device(of_match_ptr(coda_dt_ids), &pdev->dev);
2024 const struct platform_device_id *pdev_id;
2025 struct coda_platform_data *pdata = pdev->dev.platform_data;
2026 struct device_node *np = pdev->dev.of_node;
2027 struct gen_pool *pool;
2028 struct coda_dev *dev;
2029 struct resource *res;
2032 dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
2036 pdev_id = of_id ? of_id->data : platform_get_device_id(pdev);
2039 dev->devtype = of_id->data;
2040 } else if (pdev_id) {
2041 dev->devtype = &coda_devdata[pdev_id->driver_data];
2044 goto err_v4l2_register;
2047 spin_lock_init(&dev->irqlock);
2048 INIT_LIST_HEAD(&dev->instances);
2050 dev->plat_dev = pdev;
2051 dev->clk_per = devm_clk_get(&pdev->dev, "per");
2052 if (IS_ERR(dev->clk_per)) {
2053 dev_err(&pdev->dev, "Could not get per clock\n");
2054 return PTR_ERR(dev->clk_per);
2057 dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
2058 if (IS_ERR(dev->clk_ahb)) {
2059 dev_err(&pdev->dev, "Could not get ahb clock\n");
2060 return PTR_ERR(dev->clk_ahb);
2063 /* Get memory for physical registers */
2064 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2065 dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
2066 if (IS_ERR(dev->regs_base))
2067 return PTR_ERR(dev->regs_base);
2070 irq = platform_get_irq_byname(pdev, "bit");
2072 irq = platform_get_irq(pdev, 0);
2074 dev_err(&pdev->dev, "failed to get irq resource\n");
2078 ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, coda_irq_handler,
2079 IRQF_ONESHOT, dev_name(&pdev->dev), dev);
2081 dev_err(&pdev->dev, "failed to request irq: %d\n", ret);
2085 dev->rstc = devm_reset_control_get_optional(&pdev->dev, NULL);
2086 if (IS_ERR(dev->rstc)) {
2087 ret = PTR_ERR(dev->rstc);
2088 if (ret == -ENOENT || ret == -ENOSYS) {
2091 dev_err(&pdev->dev, "failed get reset control: %d\n",
2097 /* Get IRAM pool from device tree or platform data */
2098 pool = of_get_named_gen_pool(np, "iram", 0);
2100 pool = dev_get_gen_pool(pdata->iram_dev);
2102 dev_err(&pdev->dev, "iram pool not available\n");
2105 dev->iram_pool = pool;
2107 ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
2111 mutex_init(&dev->dev_mutex);
2112 mutex_init(&dev->coda_mutex);
2114 dev->debugfs_root = debugfs_create_dir("coda", NULL);
2115 if (!dev->debugfs_root)
2116 dev_warn(&pdev->dev, "failed to create debugfs root\n");
2118 /* allocate auxiliary per-device buffers for the BIT processor */
2119 if (dev->devtype->product == CODA_DX6) {
2120 ret = coda_alloc_aux_buf(dev, &dev->workbuf,
2121 dev->devtype->workbuf_size, "workbuf",
2124 dev_err(&pdev->dev, "failed to allocate work buffer\n");
2125 goto err_v4l2_register;
2129 if (dev->devtype->tempbuf_size) {
2130 ret = coda_alloc_aux_buf(dev, &dev->tempbuf,
2131 dev->devtype->tempbuf_size, "tempbuf",
2134 dev_err(&pdev->dev, "failed to allocate temp buffer\n");
2135 goto err_v4l2_register;
2139 dev->iram.size = dev->devtype->iram_size;
2140 dev->iram.vaddr = gen_pool_dma_alloc(dev->iram_pool, dev->iram.size,
2142 if (!dev->iram.vaddr) {
2143 dev_warn(&pdev->dev, "unable to alloc iram\n");
2145 dev->iram.blob.data = dev->iram.vaddr;
2146 dev->iram.blob.size = dev->iram.size;
2147 dev->iram.dentry = debugfs_create_blob("iram", 0644,
2152 dev->workqueue = alloc_workqueue("coda", WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
2153 if (!dev->workqueue) {
2154 dev_err(&pdev->dev, "unable to alloc workqueue\n");
2156 goto err_v4l2_register;
2159 platform_set_drvdata(pdev, dev);
2162 * Start activated so we can directly call coda_hw_init in
2163 * coda_fw_callback regardless of whether CONFIG_PM is
2164 * enabled or whether the device is associated with a PM domain.
2166 pm_runtime_get_noresume(&pdev->dev);
2167 pm_runtime_set_active(&pdev->dev);
2168 pm_runtime_enable(&pdev->dev);
2170 return coda_firmware_request(dev);
2173 v4l2_device_unregister(&dev->v4l2_dev);
2177 static int coda_remove(struct platform_device *pdev)
2179 struct coda_dev *dev = platform_get_drvdata(pdev);
2182 for (i = 0; i < ARRAY_SIZE(dev->vfd); i++) {
2183 if (video_get_drvdata(&dev->vfd[i]))
2184 video_unregister_device(&dev->vfd[i]);
2187 v4l2_m2m_release(dev->m2m_dev);
2188 pm_runtime_disable(&pdev->dev);
2190 vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
2191 v4l2_device_unregister(&dev->v4l2_dev);
2192 destroy_workqueue(dev->workqueue);
2193 if (dev->iram.vaddr)
2194 gen_pool_free(dev->iram_pool, (unsigned long)dev->iram.vaddr,
2196 coda_free_aux_buf(dev, &dev->codebuf);
2197 coda_free_aux_buf(dev, &dev->tempbuf);
2198 coda_free_aux_buf(dev, &dev->workbuf);
2199 debugfs_remove_recursive(dev->debugfs_root);
2204 static int coda_runtime_resume(struct device *dev)
2206 struct coda_dev *cdev = dev_get_drvdata(dev);
2209 if (dev->pm_domain && cdev->codebuf.vaddr) {
2210 ret = coda_hw_init(cdev);
2212 v4l2_err(&cdev->v4l2_dev, "HW initialization failed\n");
2219 static const struct dev_pm_ops coda_pm_ops = {
2220 SET_RUNTIME_PM_OPS(NULL, coda_runtime_resume, NULL)
2223 static struct platform_driver coda_driver = {
2224 .probe = coda_probe,
2225 .remove = coda_remove,
2228 .of_match_table = of_match_ptr(coda_dt_ids),
2231 .id_table = coda_platform_ids,
2234 module_platform_driver(coda_driver);
2236 MODULE_LICENSE("GPL");
2237 MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
2238 MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver");