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/gcd.h>
19 #include <linux/genalloc.h>
20 #include <linux/interrupt.h>
22 #include <linux/irq.h>
23 #include <linux/kfifo.h>
24 #include <linux/module.h>
25 #include <linux/of_device.h>
26 #include <linux/platform_device.h>
27 #include <linux/pm_runtime.h>
28 #include <linux/slab.h>
29 #include <linux/videodev2.h>
31 #include <linux/platform_data/media/coda.h>
32 #include <linux/reset.h>
34 #include <media/v4l2-ctrls.h>
35 #include <media/v4l2-device.h>
36 #include <media/v4l2-event.h>
37 #include <media/v4l2-ioctl.h>
38 #include <media/v4l2-mem2mem.h>
39 #include <media/videobuf2-v4l2.h>
40 #include <media/videobuf2-dma-contig.h>
41 #include <media/videobuf2-vmalloc.h>
46 #define CODA_NAME "coda"
48 #define CODADX6_MAX_INSTANCES 4
49 #define CODA_MAX_FORMATS 4
51 #define CODA_ISRAM_SIZE (2048 * 2)
56 #define S_ALIGN 1 /* multiple of 2 */
57 #define W_ALIGN 1 /* multiple of 2 */
58 #define H_ALIGN 1 /* multiple of 2 */
60 #define fh_to_ctx(__fh) container_of(__fh, struct coda_ctx, fh)
63 module_param(coda_debug, int, 0644);
64 MODULE_PARM_DESC(coda_debug, "Debug level (0-2)");
66 static int disable_tiling;
67 module_param(disable_tiling, int, 0644);
68 MODULE_PARM_DESC(disable_tiling, "Disable tiled frame buffers");
70 static int disable_vdoa;
71 module_param(disable_vdoa, int, 0644);
72 MODULE_PARM_DESC(disable_vdoa, "Disable Video Data Order Adapter tiled to raster-scan conversion");
74 static int enable_bwb = 0;
75 module_param(enable_bwb, int, 0644);
76 MODULE_PARM_DESC(enable_bwb, "Enable BWB unit, may crash on certain streams");
78 void coda_write(struct coda_dev *dev, u32 data, u32 reg)
80 v4l2_dbg(2, coda_debug, &dev->v4l2_dev,
81 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
82 writel(data, dev->regs_base + reg);
85 unsigned int coda_read(struct coda_dev *dev, u32 reg)
89 data = readl(dev->regs_base + reg);
90 v4l2_dbg(2, coda_debug, &dev->v4l2_dev,
91 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
95 void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
96 struct vb2_v4l2_buffer *buf, unsigned int reg_y)
98 u32 base_y = vb2_dma_contig_plane_dma_addr(&buf->vb2_buf, 0);
101 switch (q_data->fourcc) {
102 case V4L2_PIX_FMT_YUYV:
103 /* Fallthrough: IN -H264-> CODA -NV12 MB-> VDOA -YUYV-> OUT */
104 case V4L2_PIX_FMT_NV12:
105 case V4L2_PIX_FMT_YUV420:
107 base_cb = base_y + q_data->bytesperline * q_data->height;
108 base_cr = base_cb + q_data->bytesperline * q_data->height / 4;
110 case V4L2_PIX_FMT_YVU420:
111 /* Switch Cb and Cr for YVU420 format */
112 base_cr = base_y + q_data->bytesperline * q_data->height;
113 base_cb = base_cr + q_data->bytesperline * q_data->height / 4;
115 case V4L2_PIX_FMT_YUV422P:
116 base_cb = base_y + q_data->bytesperline * q_data->height;
117 base_cr = base_cb + q_data->bytesperline * q_data->height / 2;
120 coda_write(ctx->dev, base_y, reg_y);
121 coda_write(ctx->dev, base_cb, reg_y + 4);
122 coda_write(ctx->dev, base_cr, reg_y + 8);
125 #define CODA_CODEC(mode, src_fourcc, dst_fourcc, max_w, max_h) \
126 { mode, src_fourcc, dst_fourcc, max_w, max_h }
129 * Arrays of codecs supported by each given version of Coda:
133 * Use V4L2_PIX_FMT_YUV420 as placeholder for all supported YUV 4:2:0 variants
135 static const struct coda_codec codadx6_codecs[] = {
136 CODA_CODEC(CODADX6_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 720, 576),
137 CODA_CODEC(CODADX6_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 720, 576),
140 static const struct coda_codec coda7_codecs[] = {
141 CODA_CODEC(CODA7_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1280, 720),
142 CODA_CODEC(CODA7_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1280, 720),
143 CODA_CODEC(CODA7_MODE_ENCODE_MJPG, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_JPEG, 8192, 8192),
144 CODA_CODEC(CODA7_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
145 CODA_CODEC(CODA7_MODE_DECODE_MP2, V4L2_PIX_FMT_MPEG2, V4L2_PIX_FMT_YUV420, 1920, 1088),
146 CODA_CODEC(CODA7_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
147 CODA_CODEC(CODA7_MODE_DECODE_MJPG, V4L2_PIX_FMT_JPEG, V4L2_PIX_FMT_YUV420, 8192, 8192),
150 static const struct coda_codec coda9_codecs[] = {
151 CODA_CODEC(CODA9_MODE_ENCODE_H264, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_H264, 1920, 1088),
152 CODA_CODEC(CODA9_MODE_ENCODE_MP4, V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_MPEG4, 1920, 1088),
153 CODA_CODEC(CODA9_MODE_DECODE_H264, V4L2_PIX_FMT_H264, V4L2_PIX_FMT_YUV420, 1920, 1088),
154 CODA_CODEC(CODA9_MODE_DECODE_MP2, V4L2_PIX_FMT_MPEG2, V4L2_PIX_FMT_YUV420, 1920, 1088),
155 CODA_CODEC(CODA9_MODE_DECODE_MP4, V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_YUV420, 1920, 1088),
158 struct coda_video_device {
160 enum coda_inst_type type;
161 const struct coda_context_ops *ops;
163 u32 src_formats[CODA_MAX_FORMATS];
164 u32 dst_formats[CODA_MAX_FORMATS];
167 static const struct coda_video_device coda_bit_encoder = {
168 .name = "coda-encoder",
169 .type = CODA_INST_ENCODER,
170 .ops = &coda_bit_encode_ops,
182 static const struct coda_video_device coda_bit_jpeg_encoder = {
183 .name = "coda-jpeg-encoder",
184 .type = CODA_INST_ENCODER,
185 .ops = &coda_bit_encode_ops,
190 V4L2_PIX_FMT_YUV422P,
197 static const struct coda_video_device coda_bit_decoder = {
198 .name = "coda-decoder",
199 .type = CODA_INST_DECODER,
200 .ops = &coda_bit_decode_ops,
211 * If V4L2_PIX_FMT_YUYV should be default,
212 * set_default_params() must be adjusted.
218 static const struct coda_video_device coda_bit_jpeg_decoder = {
219 .name = "coda-jpeg-decoder",
220 .type = CODA_INST_DECODER,
221 .ops = &coda_bit_decode_ops,
229 V4L2_PIX_FMT_YUV422P,
233 static const struct coda_video_device *codadx6_video_devices[] = {
237 static const struct coda_video_device *coda7_video_devices[] = {
238 &coda_bit_jpeg_encoder,
239 &coda_bit_jpeg_decoder,
244 static const struct coda_video_device *coda9_video_devices[] = {
250 * Normalize all supported YUV 4:2:0 formats to the value used in the codec
253 static u32 coda_format_normalize_yuv(u32 fourcc)
256 case V4L2_PIX_FMT_NV12:
257 case V4L2_PIX_FMT_YUV420:
258 case V4L2_PIX_FMT_YVU420:
259 case V4L2_PIX_FMT_YUV422P:
260 case V4L2_PIX_FMT_YUYV:
261 return V4L2_PIX_FMT_YUV420;
267 static const struct coda_codec *coda_find_codec(struct coda_dev *dev,
268 int src_fourcc, int dst_fourcc)
270 const struct coda_codec *codecs = dev->devtype->codecs;
271 int num_codecs = dev->devtype->num_codecs;
274 src_fourcc = coda_format_normalize_yuv(src_fourcc);
275 dst_fourcc = coda_format_normalize_yuv(dst_fourcc);
276 if (src_fourcc == dst_fourcc)
279 for (k = 0; k < num_codecs; k++) {
280 if (codecs[k].src_fourcc == src_fourcc &&
281 codecs[k].dst_fourcc == dst_fourcc)
291 static void coda_get_max_dimensions(struct coda_dev *dev,
292 const struct coda_codec *codec,
293 int *max_w, int *max_h)
295 const struct coda_codec *codecs = dev->devtype->codecs;
296 int num_codecs = dev->devtype->num_codecs;
304 for (k = 0, w = 0, h = 0; k < num_codecs; k++) {
305 w = max(w, codecs[k].max_w);
306 h = max(h, codecs[k].max_h);
316 static const struct coda_video_device *to_coda_video_device(struct video_device
319 struct coda_dev *dev = video_get_drvdata(vdev);
320 unsigned int i = vdev - dev->vfd;
322 if (i >= dev->devtype->num_vdevs)
325 return dev->devtype->vdevs[i];
328 const char *coda_product_name(int product)
340 snprintf(buf, sizeof(buf), "(0x%04x)", product);
345 static struct vdoa_data *coda_get_vdoa_data(void)
347 struct device_node *vdoa_node;
348 struct platform_device *vdoa_pdev;
349 struct vdoa_data *vdoa_data = NULL;
351 vdoa_node = of_find_compatible_node(NULL, NULL, "fsl,imx6q-vdoa");
355 vdoa_pdev = of_find_device_by_node(vdoa_node);
359 vdoa_data = platform_get_drvdata(vdoa_pdev);
361 vdoa_data = ERR_PTR(-EPROBE_DEFER);
365 of_node_put(vdoa_node);
371 * V4L2 ioctl() operations.
373 static int coda_querycap(struct file *file, void *priv,
374 struct v4l2_capability *cap)
376 struct coda_ctx *ctx = fh_to_ctx(priv);
378 strlcpy(cap->driver, CODA_NAME, sizeof(cap->driver));
379 strlcpy(cap->card, coda_product_name(ctx->dev->devtype->product),
381 strlcpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
382 cap->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
383 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
388 static int coda_enum_fmt(struct file *file, void *priv,
389 struct v4l2_fmtdesc *f)
391 struct video_device *vdev = video_devdata(file);
392 const struct coda_video_device *cvd = to_coda_video_device(vdev);
393 struct coda_ctx *ctx = fh_to_ctx(priv);
396 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
397 formats = cvd->src_formats;
398 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
399 formats = cvd->dst_formats;
403 if (f->index >= CODA_MAX_FORMATS || formats[f->index] == 0)
406 /* Skip YUYV if the vdoa is not available */
407 if (!ctx->vdoa && f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
408 formats[f->index] == V4L2_PIX_FMT_YUYV)
411 f->pixelformat = formats[f->index];
416 static int coda_g_fmt(struct file *file, void *priv,
417 struct v4l2_format *f)
419 struct coda_q_data *q_data;
420 struct coda_ctx *ctx = fh_to_ctx(priv);
422 q_data = get_q_data(ctx, f->type);
426 f->fmt.pix.field = V4L2_FIELD_NONE;
427 f->fmt.pix.pixelformat = q_data->fourcc;
428 f->fmt.pix.width = q_data->width;
429 f->fmt.pix.height = q_data->height;
430 f->fmt.pix.bytesperline = q_data->bytesperline;
432 f->fmt.pix.sizeimage = q_data->sizeimage;
433 f->fmt.pix.colorspace = ctx->colorspace;
434 f->fmt.pix.xfer_func = ctx->xfer_func;
435 f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
436 f->fmt.pix.quantization = ctx->quantization;
441 static int coda_try_pixelformat(struct coda_ctx *ctx, struct v4l2_format *f)
443 struct coda_q_data *q_data;
447 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
448 formats = ctx->cvd->src_formats;
449 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
450 formats = ctx->cvd->dst_formats;
454 for (i = 0; i < CODA_MAX_FORMATS; i++) {
455 /* Skip YUYV if the vdoa is not available */
456 if (!ctx->vdoa && f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
457 formats[i] == V4L2_PIX_FMT_YUYV)
460 if (formats[i] == f->fmt.pix.pixelformat) {
461 f->fmt.pix.pixelformat = formats[i];
466 /* Fall back to currently set pixelformat */
467 q_data = get_q_data(ctx, f->type);
468 f->fmt.pix.pixelformat = q_data->fourcc;
473 static int coda_try_fmt_vdoa(struct coda_ctx *ctx, struct v4l2_format *f,
478 if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
489 err = vdoa_context_configure(NULL, f->fmt.pix.width, f->fmt.pix.height,
490 f->fmt.pix.pixelformat);
500 static unsigned int coda_estimate_sizeimage(struct coda_ctx *ctx, u32 sizeimage,
501 u32 width, u32 height)
504 * This is a rough estimate for sensible compressed buffer
505 * sizes (between 1 and 16 bits per pixel). This could be
506 * improved by better format specific worst case estimates.
508 return round_up(clamp(sizeimage, width * height / 8,
509 width * height * 2), PAGE_SIZE);
512 static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
513 struct v4l2_format *f)
515 struct coda_dev *dev = ctx->dev;
516 unsigned int max_w, max_h;
517 enum v4l2_field field;
519 field = f->fmt.pix.field;
520 if (field == V4L2_FIELD_ANY)
521 field = V4L2_FIELD_NONE;
522 else if (V4L2_FIELD_NONE != field)
525 /* V4L2 specification suggests the driver corrects the format struct
526 * if any of the dimensions is unsupported */
527 f->fmt.pix.field = field;
529 coda_get_max_dimensions(dev, codec, &max_w, &max_h);
530 v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w, W_ALIGN,
531 &f->fmt.pix.height, MIN_H, max_h, H_ALIGN,
534 switch (f->fmt.pix.pixelformat) {
535 case V4L2_PIX_FMT_NV12:
536 case V4L2_PIX_FMT_YUV420:
537 case V4L2_PIX_FMT_YVU420:
539 * Frame stride must be at least multiple of 8,
540 * but multiple of 16 for h.264 or JPEG 4:2:x
542 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
543 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
544 f->fmt.pix.height * 3 / 2;
546 case V4L2_PIX_FMT_YUYV:
547 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16) * 2;
548 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
551 case V4L2_PIX_FMT_YUV422P:
552 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
553 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
554 f->fmt.pix.height * 2;
556 case V4L2_PIX_FMT_JPEG:
557 f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
559 case V4L2_PIX_FMT_H264:
560 case V4L2_PIX_FMT_MPEG4:
561 case V4L2_PIX_FMT_MPEG2:
562 f->fmt.pix.bytesperline = 0;
563 f->fmt.pix.sizeimage = coda_estimate_sizeimage(ctx,
564 f->fmt.pix.sizeimage,
575 static int coda_try_fmt_vid_cap(struct file *file, void *priv,
576 struct v4l2_format *f)
578 struct coda_ctx *ctx = fh_to_ctx(priv);
579 const struct coda_q_data *q_data_src;
580 const struct coda_codec *codec;
581 struct vb2_queue *src_vq;
585 ret = coda_try_pixelformat(ctx, f);
589 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
592 * If the source format is already fixed, only allow the same output
595 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
596 if (vb2_is_streaming(src_vq)) {
597 f->fmt.pix.width = q_data_src->width;
598 f->fmt.pix.height = q_data_src->height;
601 f->fmt.pix.colorspace = ctx->colorspace;
602 f->fmt.pix.xfer_func = ctx->xfer_func;
603 f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc;
604 f->fmt.pix.quantization = ctx->quantization;
606 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
607 codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
608 f->fmt.pix.pixelformat);
612 ret = coda_try_fmt(ctx, codec, f);
616 /* The h.264 decoder only returns complete 16x16 macroblocks */
617 if (codec && codec->src_fourcc == V4L2_PIX_FMT_H264) {
618 f->fmt.pix.height = round_up(f->fmt.pix.height, 16);
619 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
620 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
621 f->fmt.pix.height * 3 / 2;
623 ret = coda_try_fmt_vdoa(ctx, f, &use_vdoa);
627 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) {
631 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16) * 2;
632 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
640 static void coda_set_default_colorspace(struct v4l2_pix_format *fmt)
642 enum v4l2_colorspace colorspace;
644 if (fmt->pixelformat == V4L2_PIX_FMT_JPEG)
645 colorspace = V4L2_COLORSPACE_JPEG;
646 else if (fmt->width <= 720 && fmt->height <= 576)
647 colorspace = V4L2_COLORSPACE_SMPTE170M;
649 colorspace = V4L2_COLORSPACE_REC709;
651 fmt->colorspace = colorspace;
652 fmt->xfer_func = V4L2_XFER_FUNC_DEFAULT;
653 fmt->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
654 fmt->quantization = V4L2_QUANTIZATION_DEFAULT;
657 static int coda_try_fmt_vid_out(struct file *file, void *priv,
658 struct v4l2_format *f)
660 struct coda_ctx *ctx = fh_to_ctx(priv);
661 struct coda_dev *dev = ctx->dev;
662 const struct coda_q_data *q_data_dst;
663 const struct coda_codec *codec;
666 ret = coda_try_pixelformat(ctx, f);
670 if (f->fmt.pix.colorspace == V4L2_COLORSPACE_DEFAULT)
671 coda_set_default_colorspace(&f->fmt.pix);
673 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
674 codec = coda_find_codec(dev, f->fmt.pix.pixelformat, q_data_dst->fourcc);
676 return coda_try_fmt(ctx, codec, f);
679 static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f,
682 struct coda_q_data *q_data;
683 struct vb2_queue *vq;
685 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
689 q_data = get_q_data(ctx, f->type);
693 if (vb2_is_busy(vq)) {
694 v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__);
698 q_data->fourcc = f->fmt.pix.pixelformat;
699 q_data->width = f->fmt.pix.width;
700 q_data->height = f->fmt.pix.height;
701 q_data->bytesperline = f->fmt.pix.bytesperline;
702 q_data->sizeimage = f->fmt.pix.sizeimage;
706 q_data->rect.left = 0;
707 q_data->rect.top = 0;
708 q_data->rect.width = f->fmt.pix.width;
709 q_data->rect.height = f->fmt.pix.height;
712 switch (f->fmt.pix.pixelformat) {
713 case V4L2_PIX_FMT_YUYV:
714 ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP;
716 case V4L2_PIX_FMT_NV12:
717 ctx->tiled_map_type = GDI_TILED_FRAME_MB_RASTER_MAP;
720 /* else fall through */
721 case V4L2_PIX_FMT_YUV420:
722 case V4L2_PIX_FMT_YVU420:
723 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP;
729 if (ctx->tiled_map_type == GDI_TILED_FRAME_MB_RASTER_MAP &&
730 !coda_try_fmt_vdoa(ctx, f, &ctx->use_vdoa) &&
732 vdoa_context_configure(ctx->vdoa, f->fmt.pix.width,
734 f->fmt.pix.pixelformat);
736 ctx->use_vdoa = false;
738 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
739 "Setting format for type %d, wxh: %dx%d, fmt: %4.4s %c\n",
740 f->type, q_data->width, q_data->height,
741 (char *)&q_data->fourcc,
742 (ctx->tiled_map_type == GDI_LINEAR_FRAME_MAP) ? 'L' : 'T');
747 static int coda_s_fmt_vid_cap(struct file *file, void *priv,
748 struct v4l2_format *f)
750 struct coda_ctx *ctx = fh_to_ctx(priv);
751 struct coda_q_data *q_data_src;
755 ret = coda_try_fmt_vid_cap(file, priv, f);
759 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
762 r.width = q_data_src->width;
763 r.height = q_data_src->height;
765 return coda_s_fmt(ctx, f, &r);
768 static int coda_s_fmt_vid_out(struct file *file, void *priv,
769 struct v4l2_format *f)
771 struct coda_ctx *ctx = fh_to_ctx(priv);
772 struct coda_q_data *q_data_src;
773 struct v4l2_format f_cap;
777 ret = coda_try_fmt_vid_out(file, priv, f);
781 ret = coda_s_fmt(ctx, f, NULL);
785 ctx->colorspace = f->fmt.pix.colorspace;
786 ctx->xfer_func = f->fmt.pix.xfer_func;
787 ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc;
788 ctx->quantization = f->fmt.pix.quantization;
790 memset(&f_cap, 0, sizeof(f_cap));
791 f_cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
792 coda_g_fmt(file, priv, &f_cap);
793 f_cap.fmt.pix.width = f->fmt.pix.width;
794 f_cap.fmt.pix.height = f->fmt.pix.height;
796 ret = coda_try_fmt_vid_cap(file, priv, &f_cap);
800 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
803 r.width = q_data_src->width;
804 r.height = q_data_src->height;
806 return coda_s_fmt(ctx, &f_cap, &r);
809 static int coda_reqbufs(struct file *file, void *priv,
810 struct v4l2_requestbuffers *rb)
812 struct coda_ctx *ctx = fh_to_ctx(priv);
815 ret = v4l2_m2m_reqbufs(file, ctx->fh.m2m_ctx, rb);
820 * Allow to allocate instance specific per-context buffers, such as
821 * bitstream ringbuffer, slice buffer, work buffer, etc. if needed.
823 if (rb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && ctx->ops->reqbufs)
824 return ctx->ops->reqbufs(ctx, rb);
829 static int coda_qbuf(struct file *file, void *priv,
830 struct v4l2_buffer *buf)
832 struct coda_ctx *ctx = fh_to_ctx(priv);
834 return v4l2_m2m_qbuf(file, ctx->fh.m2m_ctx, buf);
837 static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx,
838 struct vb2_v4l2_buffer *buf)
840 return ((ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) &&
841 (buf->sequence == (ctx->qsequence - 1)));
844 void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
845 enum vb2_buffer_state state)
847 const struct v4l2_event eos_event = {
848 .type = V4L2_EVENT_EOS
851 if (coda_buf_is_end_of_stream(ctx, buf)) {
852 buf->flags |= V4L2_BUF_FLAG_LAST;
854 v4l2_event_queue_fh(&ctx->fh, &eos_event);
857 v4l2_m2m_buf_done(buf, state);
860 static int coda_g_selection(struct file *file, void *fh,
861 struct v4l2_selection *s)
863 struct coda_ctx *ctx = fh_to_ctx(fh);
864 struct coda_q_data *q_data;
865 struct v4l2_rect r, *rsel;
867 q_data = get_q_data(ctx, s->type);
873 r.width = q_data->width;
874 r.height = q_data->height;
875 rsel = &q_data->rect;
878 case V4L2_SEL_TGT_CROP_DEFAULT:
879 case V4L2_SEL_TGT_CROP_BOUNDS:
882 case V4L2_SEL_TGT_CROP:
883 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
886 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
887 case V4L2_SEL_TGT_COMPOSE_PADDED:
890 case V4L2_SEL_TGT_COMPOSE:
891 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
892 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
904 static int coda_try_encoder_cmd(struct file *file, void *fh,
905 struct v4l2_encoder_cmd *ec)
907 if (ec->cmd != V4L2_ENC_CMD_STOP)
910 if (ec->flags & V4L2_ENC_CMD_STOP_AT_GOP_END)
916 static int coda_encoder_cmd(struct file *file, void *fh,
917 struct v4l2_encoder_cmd *ec)
919 struct coda_ctx *ctx = fh_to_ctx(fh);
920 struct vb2_queue *dst_vq;
923 ret = coda_try_encoder_cmd(file, fh, ec);
927 /* Ignore encoder stop command silently in decoder context */
928 if (ctx->inst_type != CODA_INST_ENCODER)
931 /* Set the stream-end flag on this context */
932 ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
934 /* If there is no buffer in flight, wake up */
935 if (ctx->qsequence == ctx->osequence) {
936 dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
937 V4L2_BUF_TYPE_VIDEO_CAPTURE);
938 dst_vq->last_buffer_dequeued = true;
939 wake_up(&dst_vq->done_wq);
945 static int coda_try_decoder_cmd(struct file *file, void *fh,
946 struct v4l2_decoder_cmd *dc)
948 if (dc->cmd != V4L2_DEC_CMD_STOP)
951 if (dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK)
954 if (!(dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY) && (dc->stop.pts != 0))
960 static int coda_decoder_cmd(struct file *file, void *fh,
961 struct v4l2_decoder_cmd *dc)
963 struct coda_ctx *ctx = fh_to_ctx(fh);
966 ret = coda_try_decoder_cmd(file, fh, dc);
970 /* Ignore decoder stop command silently in encoder context */
971 if (ctx->inst_type != CODA_INST_DECODER)
974 /* Set the stream-end flag on this context */
975 coda_bit_stream_end_flag(ctx);
977 v4l2_m2m_try_schedule(ctx->fh.m2m_ctx);
982 static int coda_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
984 struct coda_ctx *ctx = fh_to_ctx(fh);
985 struct v4l2_fract *tpf;
987 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
990 a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
991 tpf = &a->parm.output.timeperframe;
992 tpf->denominator = ctx->params.framerate & CODA_FRATE_RES_MASK;
993 tpf->numerator = 1 + (ctx->params.framerate >>
994 CODA_FRATE_DIV_OFFSET);
1000 * Approximate timeperframe v4l2_fract with values that can be written
1001 * into the 16-bit CODA_FRATE_DIV and CODA_FRATE_RES fields.
1003 static void coda_approximate_timeperframe(struct v4l2_fract *timeperframe)
1005 struct v4l2_fract s = *timeperframe;
1006 struct v4l2_fract f0;
1007 struct v4l2_fract f1 = { 1, 0 };
1008 struct v4l2_fract f2 = { 0, 1 };
1009 unsigned int i, div, s_denominator;
1011 /* Lower bound is 1/65535 */
1012 if (s.numerator == 0 || s.denominator / s.numerator > 65535) {
1013 timeperframe->numerator = 1;
1014 timeperframe->denominator = 65535;
1018 /* Upper bound is 65536/1, map everything above to infinity */
1019 if (s.denominator == 0 || s.numerator / s.denominator > 65536) {
1020 timeperframe->numerator = 1;
1021 timeperframe->denominator = 0;
1025 /* Reduce fraction to lowest terms */
1026 div = gcd(s.numerator, s.denominator);
1029 s.denominator /= div;
1032 if (s.numerator <= 65536 && s.denominator < 65536) {
1037 /* Find successive convergents from continued fraction expansion */
1038 while (f2.numerator <= 65536 && f2.denominator < 65536) {
1042 /* Stop when f2 exactly equals timeperframe */
1043 if (s.numerator == 0)
1046 i = s.denominator / s.numerator;
1048 f2.numerator = f0.numerator + i * f1.numerator;
1049 f2.denominator = f0.denominator + i * f2.denominator;
1051 s_denominator = s.numerator;
1052 s.numerator = s.denominator % s.numerator;
1053 s.denominator = s_denominator;
1059 static uint32_t coda_timeperframe_to_frate(struct v4l2_fract *timeperframe)
1061 return ((timeperframe->numerator - 1) << CODA_FRATE_DIV_OFFSET) |
1062 timeperframe->denominator;
1065 static int coda_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
1067 struct coda_ctx *ctx = fh_to_ctx(fh);
1068 struct v4l2_fract *tpf;
1070 if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1073 tpf = &a->parm.output.timeperframe;
1074 coda_approximate_timeperframe(tpf);
1075 ctx->params.framerate = coda_timeperframe_to_frate(tpf);
1080 static int coda_subscribe_event(struct v4l2_fh *fh,
1081 const struct v4l2_event_subscription *sub)
1083 switch (sub->type) {
1084 case V4L2_EVENT_EOS:
1085 return v4l2_event_subscribe(fh, sub, 0, NULL);
1087 return v4l2_ctrl_subscribe_event(fh, sub);
1091 static const struct v4l2_ioctl_ops coda_ioctl_ops = {
1092 .vidioc_querycap = coda_querycap,
1094 .vidioc_enum_fmt_vid_cap = coda_enum_fmt,
1095 .vidioc_g_fmt_vid_cap = coda_g_fmt,
1096 .vidioc_try_fmt_vid_cap = coda_try_fmt_vid_cap,
1097 .vidioc_s_fmt_vid_cap = coda_s_fmt_vid_cap,
1099 .vidioc_enum_fmt_vid_out = coda_enum_fmt,
1100 .vidioc_g_fmt_vid_out = coda_g_fmt,
1101 .vidioc_try_fmt_vid_out = coda_try_fmt_vid_out,
1102 .vidioc_s_fmt_vid_out = coda_s_fmt_vid_out,
1104 .vidioc_reqbufs = coda_reqbufs,
1105 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
1107 .vidioc_qbuf = coda_qbuf,
1108 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
1109 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
1110 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
1111 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
1113 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
1114 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
1116 .vidioc_g_selection = coda_g_selection,
1118 .vidioc_try_encoder_cmd = coda_try_encoder_cmd,
1119 .vidioc_encoder_cmd = coda_encoder_cmd,
1120 .vidioc_try_decoder_cmd = coda_try_decoder_cmd,
1121 .vidioc_decoder_cmd = coda_decoder_cmd,
1123 .vidioc_g_parm = coda_g_parm,
1124 .vidioc_s_parm = coda_s_parm,
1126 .vidioc_subscribe_event = coda_subscribe_event,
1127 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1131 * Mem-to-mem operations.
1134 static void coda_device_run(void *m2m_priv)
1136 struct coda_ctx *ctx = m2m_priv;
1137 struct coda_dev *dev = ctx->dev;
1139 queue_work(dev->workqueue, &ctx->pic_run_work);
1142 static void coda_pic_run_work(struct work_struct *work)
1144 struct coda_ctx *ctx = container_of(work, struct coda_ctx, pic_run_work);
1145 struct coda_dev *dev = ctx->dev;
1148 mutex_lock(&ctx->buffer_mutex);
1149 mutex_lock(&dev->coda_mutex);
1151 ret = ctx->ops->prepare_run(ctx);
1152 if (ret < 0 && ctx->inst_type == CODA_INST_DECODER) {
1153 mutex_unlock(&dev->coda_mutex);
1154 mutex_unlock(&ctx->buffer_mutex);
1155 /* job_finish scheduled by prepare_decode */
1159 if (!wait_for_completion_timeout(&ctx->completion,
1160 msecs_to_jiffies(1000))) {
1161 dev_err(&dev->plat_dev->dev, "CODA PIC_RUN timeout\n");
1167 if (ctx->ops->run_timeout)
1168 ctx->ops->run_timeout(ctx);
1169 } else if (!ctx->aborting) {
1170 ctx->ops->finish_run(ctx);
1173 if ((ctx->aborting || (!ctx->streamon_cap && !ctx->streamon_out)) &&
1174 ctx->ops->seq_end_work)
1175 queue_work(dev->workqueue, &ctx->seq_end_work);
1177 mutex_unlock(&dev->coda_mutex);
1178 mutex_unlock(&ctx->buffer_mutex);
1180 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
1183 static int coda_job_ready(void *m2m_priv)
1185 struct coda_ctx *ctx = m2m_priv;
1186 int src_bufs = v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx);
1189 * For both 'P' and 'key' frame cases 1 picture
1190 * and 1 frame are needed. In the decoder case,
1191 * the compressed frame can be in the bitstream.
1193 if (!src_bufs && ctx->inst_type != CODA_INST_DECODER) {
1194 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1195 "not ready: not enough video buffers.\n");
1199 if (!v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx)) {
1200 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1201 "not ready: not enough video capture buffers.\n");
1205 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1206 bool stream_end = ctx->bit_stream_param &
1207 CODA_BIT_STREAM_END_FLAG;
1208 int num_metas = ctx->num_metas;
1211 count = hweight32(ctx->frm_dis_flg);
1212 if (ctx->use_vdoa && count >= (ctx->num_internal_frames - 1)) {
1213 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1214 "%d: not ready: all internal buffers in use: %d/%d (0x%x)",
1215 ctx->idx, count, ctx->num_internal_frames,
1220 if (ctx->hold && !src_bufs) {
1221 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1222 "%d: not ready: on hold for more buffers.\n",
1227 if (!stream_end && (num_metas + src_bufs) < 2) {
1228 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1229 "%d: not ready: need 2 buffers available (%d, %d)\n",
1230 ctx->idx, num_metas, src_bufs);
1235 if (!src_bufs && !stream_end &&
1236 (coda_get_bitstream_payload(ctx) < 512)) {
1237 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1238 "%d: not ready: not enough bitstream data (%d).\n",
1239 ctx->idx, coda_get_bitstream_payload(ctx));
1244 if (ctx->aborting) {
1245 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1246 "not ready: aborting\n");
1250 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1256 static void coda_job_abort(void *priv)
1258 struct coda_ctx *ctx = priv;
1262 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1266 static void coda_lock(void *m2m_priv)
1268 struct coda_ctx *ctx = m2m_priv;
1269 struct coda_dev *pcdev = ctx->dev;
1271 mutex_lock(&pcdev->dev_mutex);
1274 static void coda_unlock(void *m2m_priv)
1276 struct coda_ctx *ctx = m2m_priv;
1277 struct coda_dev *pcdev = ctx->dev;
1279 mutex_unlock(&pcdev->dev_mutex);
1282 static const struct v4l2_m2m_ops coda_m2m_ops = {
1283 .device_run = coda_device_run,
1284 .job_ready = coda_job_ready,
1285 .job_abort = coda_job_abort,
1287 .unlock = coda_unlock,
1290 static void set_default_params(struct coda_ctx *ctx)
1292 unsigned int max_w, max_h, usize, csize;
1294 ctx->codec = coda_find_codec(ctx->dev, ctx->cvd->src_formats[0],
1295 ctx->cvd->dst_formats[0]);
1296 max_w = min(ctx->codec->max_w, 1920U);
1297 max_h = min(ctx->codec->max_h, 1088U);
1298 usize = max_w * max_h * 3 / 2;
1299 csize = coda_estimate_sizeimage(ctx, usize, max_w, max_h);
1301 ctx->params.codec_mode = ctx->codec->mode;
1302 if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_JPEG)
1303 ctx->colorspace = V4L2_COLORSPACE_JPEG;
1305 ctx->colorspace = V4L2_COLORSPACE_REC709;
1306 ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
1307 ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
1308 ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
1309 ctx->params.framerate = 30;
1311 /* Default formats for output and input queues */
1312 ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->cvd->src_formats[0];
1313 ctx->q_data[V4L2_M2M_DST].fourcc = ctx->cvd->dst_formats[0];
1314 ctx->q_data[V4L2_M2M_SRC].width = max_w;
1315 ctx->q_data[V4L2_M2M_SRC].height = max_h;
1316 ctx->q_data[V4L2_M2M_DST].width = max_w;
1317 ctx->q_data[V4L2_M2M_DST].height = max_h;
1318 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_YUV420) {
1319 ctx->q_data[V4L2_M2M_SRC].bytesperline = max_w;
1320 ctx->q_data[V4L2_M2M_SRC].sizeimage = usize;
1321 ctx->q_data[V4L2_M2M_DST].bytesperline = 0;
1322 ctx->q_data[V4L2_M2M_DST].sizeimage = csize;
1324 ctx->q_data[V4L2_M2M_SRC].bytesperline = 0;
1325 ctx->q_data[V4L2_M2M_SRC].sizeimage = csize;
1326 ctx->q_data[V4L2_M2M_DST].bytesperline = max_w;
1327 ctx->q_data[V4L2_M2M_DST].sizeimage = usize;
1329 ctx->q_data[V4L2_M2M_SRC].rect.width = max_w;
1330 ctx->q_data[V4L2_M2M_SRC].rect.height = max_h;
1331 ctx->q_data[V4L2_M2M_DST].rect.width = max_w;
1332 ctx->q_data[V4L2_M2M_DST].rect.height = max_h;
1335 * Since the RBC2AXI logic only supports a single chroma plane,
1336 * macroblock tiling only works for to NV12 pixel format.
1338 ctx->tiled_map_type = GDI_LINEAR_FRAME_MAP;
1344 static int coda_queue_setup(struct vb2_queue *vq,
1345 unsigned int *nbuffers, unsigned int *nplanes,
1346 unsigned int sizes[], struct device *alloc_devs[])
1348 struct coda_ctx *ctx = vb2_get_drv_priv(vq);
1349 struct coda_q_data *q_data;
1352 q_data = get_q_data(ctx, vq->type);
1353 size = q_data->sizeimage;
1358 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1359 "get %d buffer(s) of size %d each.\n", *nbuffers, size);
1364 static int coda_buf_prepare(struct vb2_buffer *vb)
1366 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1367 struct coda_q_data *q_data;
1369 q_data = get_q_data(ctx, vb->vb2_queue->type);
1371 if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
1372 v4l2_warn(&ctx->dev->v4l2_dev,
1373 "%s data will not fit into plane (%lu < %lu)\n",
1374 __func__, vb2_plane_size(vb, 0),
1375 (long)q_data->sizeimage);
1382 static void coda_buf_queue(struct vb2_buffer *vb)
1384 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1385 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1386 struct vb2_queue *vq = vb->vb2_queue;
1387 struct coda_q_data *q_data;
1389 q_data = get_q_data(ctx, vb->vb2_queue->type);
1392 * In the decoder case, immediately try to copy the buffer into the
1393 * bitstream ringbuffer and mark it as ready to be dequeued.
1395 if (ctx->bitstream.size && vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1397 * For backwards compatibility, queuing an empty buffer marks
1400 if (vb2_get_plane_payload(vb, 0) == 0)
1401 coda_bit_stream_end_flag(ctx);
1403 if (q_data->fourcc == V4L2_PIX_FMT_H264) {
1405 * Unless already done, try to obtain profile_idc and
1406 * level_idc from the SPS header. This allows to decide
1407 * whether to enable reordering during sequence
1410 if (!ctx->params.h264_profile_idc)
1411 coda_sps_parse_profile(ctx, vb);
1414 mutex_lock(&ctx->bitstream_mutex);
1415 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
1416 if (vb2_is_streaming(vb->vb2_queue))
1417 /* This set buf->sequence = ctx->qsequence++ */
1418 coda_fill_bitstream(ctx, NULL);
1419 mutex_unlock(&ctx->bitstream_mutex);
1421 if (ctx->inst_type == CODA_INST_ENCODER &&
1422 vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1423 vbuf->sequence = ctx->qsequence++;
1424 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
1428 int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
1429 size_t size, const char *name, struct dentry *parent)
1431 buf->vaddr = dma_alloc_coherent(&dev->plat_dev->dev, size, &buf->paddr,
1434 v4l2_err(&dev->v4l2_dev,
1435 "Failed to allocate %s buffer of size %zu\n",
1442 if (name && parent) {
1443 buf->blob.data = buf->vaddr;
1444 buf->blob.size = size;
1445 buf->dentry = debugfs_create_blob(name, 0644, parent,
1448 dev_warn(&dev->plat_dev->dev,
1449 "failed to create debugfs entry %s\n", name);
1455 void coda_free_aux_buf(struct coda_dev *dev,
1456 struct coda_aux_buf *buf)
1459 dma_free_coherent(&dev->plat_dev->dev, buf->size,
1460 buf->vaddr, buf->paddr);
1463 debugfs_remove(buf->dentry);
1468 static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
1470 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1471 struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev;
1472 struct coda_q_data *q_data_src, *q_data_dst;
1473 struct v4l2_m2m_buffer *m2m_buf, *tmp;
1474 struct vb2_v4l2_buffer *buf;
1475 struct list_head list;
1481 INIT_LIST_HEAD(&list);
1483 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1484 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1485 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
1486 /* copy the buffers that were queued before streamon */
1487 mutex_lock(&ctx->bitstream_mutex);
1488 coda_fill_bitstream(ctx, &list);
1489 mutex_unlock(&ctx->bitstream_mutex);
1491 if (coda_get_bitstream_payload(ctx) < 512) {
1497 ctx->streamon_out = 1;
1499 ctx->streamon_cap = 1;
1502 /* Don't start the coda unless both queues are on */
1503 if (!(ctx->streamon_out && ctx->streamon_cap))
1506 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1507 if ((q_data_src->width != q_data_dst->width &&
1508 round_up(q_data_src->width, 16) != q_data_dst->width) ||
1509 (q_data_src->height != q_data_dst->height &&
1510 round_up(q_data_src->height, 16) != q_data_dst->height)) {
1511 v4l2_err(v4l2_dev, "can't convert %dx%d to %dx%d\n",
1512 q_data_src->width, q_data_src->height,
1513 q_data_dst->width, q_data_dst->height);
1518 /* Allow BIT decoder device_run with no new buffers queued */
1519 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
1520 v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true);
1522 ctx->gopcounter = ctx->params.gop_size - 1;
1524 ctx->codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
1525 q_data_dst->fourcc);
1527 v4l2_err(v4l2_dev, "couldn't tell instance type.\n");
1532 if (q_data_dst->fourcc == V4L2_PIX_FMT_JPEG)
1533 ctx->params.gop_size = 1;
1534 ctx->gopcounter = ctx->params.gop_size - 1;
1536 ret = ctx->ops->start_streaming(ctx);
1537 if (ctx->inst_type == CODA_INST_DECODER) {
1545 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1546 list_for_each_entry_safe(m2m_buf, tmp, &list, list) {
1547 list_del(&m2m_buf->list);
1548 v4l2_m2m_buf_done(&m2m_buf->vb, VB2_BUF_STATE_DONE);
1554 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1555 list_for_each_entry_safe(m2m_buf, tmp, &list, list) {
1556 list_del(&m2m_buf->list);
1557 v4l2_m2m_buf_done(&m2m_buf->vb, VB2_BUF_STATE_QUEUED);
1559 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1560 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1562 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1563 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1568 static void coda_stop_streaming(struct vb2_queue *q)
1570 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1571 struct coda_dev *dev = ctx->dev;
1572 struct vb2_v4l2_buffer *buf;
1573 unsigned long flags;
1576 stop = ctx->streamon_out && ctx->streamon_cap;
1578 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1579 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1580 "%s: output\n", __func__);
1581 ctx->streamon_out = 0;
1583 coda_bit_stream_end_flag(ctx);
1587 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1588 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1590 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1591 "%s: capture\n", __func__);
1592 ctx->streamon_cap = 0;
1595 ctx->sequence_offset = 0;
1597 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1598 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1602 struct coda_buffer_meta *meta;
1604 if (ctx->ops->seq_end_work) {
1605 queue_work(dev->workqueue, &ctx->seq_end_work);
1606 flush_work(&ctx->seq_end_work);
1608 spin_lock_irqsave(&ctx->buffer_meta_lock, flags);
1609 while (!list_empty(&ctx->buffer_meta_list)) {
1610 meta = list_first_entry(&ctx->buffer_meta_list,
1611 struct coda_buffer_meta, list);
1612 list_del(&meta->list);
1616 spin_unlock_irqrestore(&ctx->buffer_meta_lock, flags);
1617 kfifo_init(&ctx->bitstream_fifo,
1618 ctx->bitstream.vaddr, ctx->bitstream.size);
1619 ctx->runcounter = 0;
1623 if (!ctx->streamon_out && !ctx->streamon_cap)
1624 ctx->bit_stream_param &= ~CODA_BIT_STREAM_END_FLAG;
1627 static const struct vb2_ops coda_qops = {
1628 .queue_setup = coda_queue_setup,
1629 .buf_prepare = coda_buf_prepare,
1630 .buf_queue = coda_buf_queue,
1631 .start_streaming = coda_start_streaming,
1632 .stop_streaming = coda_stop_streaming,
1633 .wait_prepare = vb2_ops_wait_prepare,
1634 .wait_finish = vb2_ops_wait_finish,
1637 static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
1639 struct coda_ctx *ctx =
1640 container_of(ctrl->handler, struct coda_ctx, ctrls);
1642 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1643 "s_ctrl: id = %d, val = %d\n", ctrl->id, ctrl->val);
1646 case V4L2_CID_HFLIP:
1648 ctx->params.rot_mode |= CODA_MIR_HOR;
1650 ctx->params.rot_mode &= ~CODA_MIR_HOR;
1652 case V4L2_CID_VFLIP:
1654 ctx->params.rot_mode |= CODA_MIR_VER;
1656 ctx->params.rot_mode &= ~CODA_MIR_VER;
1658 case V4L2_CID_MPEG_VIDEO_BITRATE:
1659 ctx->params.bitrate = ctrl->val / 1000;
1661 case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
1662 ctx->params.gop_size = ctrl->val;
1664 case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
1665 ctx->params.h264_intra_qp = ctrl->val;
1667 case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
1668 ctx->params.h264_inter_qp = ctrl->val;
1670 case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
1671 ctx->params.h264_min_qp = ctrl->val;
1673 case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
1674 ctx->params.h264_max_qp = ctrl->val;
1676 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA:
1677 ctx->params.h264_deblk_alpha = ctrl->val;
1679 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA:
1680 ctx->params.h264_deblk_beta = ctrl->val;
1682 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
1683 ctx->params.h264_deblk_enabled = (ctrl->val ==
1684 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
1686 case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
1687 ctx->params.mpeg4_intra_qp = ctrl->val;
1689 case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
1690 ctx->params.mpeg4_inter_qp = ctrl->val;
1692 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
1693 ctx->params.slice_mode = ctrl->val;
1695 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
1696 ctx->params.slice_max_mb = ctrl->val;
1698 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
1699 ctx->params.slice_max_bits = ctrl->val * 8;
1701 case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
1703 case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB:
1704 ctx->params.intra_refresh = ctrl->val;
1706 case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
1707 ctx->params.force_ipicture = true;
1709 case V4L2_CID_JPEG_COMPRESSION_QUALITY:
1710 coda_set_jpeg_compression_quality(ctx, ctrl->val);
1712 case V4L2_CID_JPEG_RESTART_INTERVAL:
1713 ctx->params.jpeg_restart_interval = ctrl->val;
1715 case V4L2_CID_MPEG_VIDEO_VBV_DELAY:
1716 ctx->params.vbv_delay = ctrl->val;
1718 case V4L2_CID_MPEG_VIDEO_VBV_SIZE:
1719 ctx->params.vbv_size = min(ctrl->val * 8192, 0x7fffffff);
1722 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1723 "Invalid control, id=%d, val=%d\n",
1724 ctrl->id, ctrl->val);
1731 static const struct v4l2_ctrl_ops coda_ctrl_ops = {
1732 .s_ctrl = coda_s_ctrl,
1735 static void coda_encode_ctrls(struct coda_ctx *ctx)
1737 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1738 V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1000, 0);
1739 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1740 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 60, 1, 16);
1741 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1742 V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 0, 51, 1, 25);
1743 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1744 V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 0, 51, 1, 25);
1745 if (ctx->dev->devtype->product != CODA_960) {
1746 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1747 V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 51, 1, 12);
1749 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1750 V4L2_CID_MPEG_VIDEO_H264_MAX_QP, 0, 51, 1, 51);
1751 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1752 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA, 0, 15, 1, 0);
1753 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1754 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA, 0, 15, 1, 0);
1755 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1756 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
1757 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED, 0x0,
1758 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
1759 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1760 V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
1761 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1762 V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
1763 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1764 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
1765 V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES, 0x0,
1766 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
1767 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1768 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
1769 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1770 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1,
1772 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1773 V4L2_CID_MPEG_VIDEO_HEADER_MODE,
1774 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
1775 (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE),
1776 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
1777 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1778 V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB, 0,
1779 1920 * 1088 / 256, 1, 0);
1780 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1781 V4L2_CID_MPEG_VIDEO_VBV_DELAY, 0, 0x7fff, 1, 0);
1783 * The maximum VBV size value is 0x7fffffff bits,
1784 * one bit less than 262144 KiB
1786 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1787 V4L2_CID_MPEG_VIDEO_VBV_SIZE, 0, 262144, 1, 0);
1790 static void coda_jpeg_encode_ctrls(struct coda_ctx *ctx)
1792 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1793 V4L2_CID_JPEG_COMPRESSION_QUALITY, 5, 100, 1, 50);
1794 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1795 V4L2_CID_JPEG_RESTART_INTERVAL, 0, 100, 1, 0);
1798 static int coda_ctrls_setup(struct coda_ctx *ctx)
1800 v4l2_ctrl_handler_init(&ctx->ctrls, 2);
1802 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1803 V4L2_CID_HFLIP, 0, 1, 1, 0);
1804 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1805 V4L2_CID_VFLIP, 0, 1, 1, 0);
1806 if (ctx->inst_type == CODA_INST_ENCODER) {
1807 if (ctx->cvd->dst_formats[0] == V4L2_PIX_FMT_JPEG)
1808 coda_jpeg_encode_ctrls(ctx);
1810 coda_encode_ctrls(ctx);
1813 if (ctx->ctrls.error) {
1814 v4l2_err(&ctx->dev->v4l2_dev,
1815 "control initialization error (%d)",
1820 return v4l2_ctrl_handler_setup(&ctx->ctrls);
1823 static int coda_queue_init(struct coda_ctx *ctx, struct vb2_queue *vq)
1826 vq->ops = &coda_qops;
1827 vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
1828 vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1829 vq->lock = &ctx->dev->dev_mutex;
1830 /* One way to indicate end-of-stream for coda is to set the
1831 * bytesused == 0. However by default videobuf2 handles bytesused
1832 * equal to 0 as a special case and changes its value to the size
1833 * of the buffer. Set the allow_zero_bytesused flag, so
1834 * that videobuf2 will keep the value of bytesused intact.
1836 vq->allow_zero_bytesused = 1;
1837 vq->dev = &ctx->dev->plat_dev->dev;
1839 return vb2_queue_init(vq);
1842 int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
1843 struct vb2_queue *dst_vq)
1847 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1848 src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
1849 src_vq->mem_ops = &vb2_dma_contig_memops;
1851 ret = coda_queue_init(priv, src_vq);
1855 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1856 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
1857 dst_vq->mem_ops = &vb2_dma_contig_memops;
1859 return coda_queue_init(priv, dst_vq);
1862 int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
1863 struct vb2_queue *dst_vq)
1867 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1868 src_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
1869 src_vq->mem_ops = &vb2_vmalloc_memops;
1871 ret = coda_queue_init(priv, src_vq);
1875 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1876 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
1877 dst_vq->mem_ops = &vb2_dma_contig_memops;
1879 return coda_queue_init(priv, dst_vq);
1882 static int coda_next_free_instance(struct coda_dev *dev)
1884 int idx = ffz(dev->instance_mask);
1887 (dev->devtype->product == CODA_DX6 && idx > CODADX6_MAX_INSTANCES))
1897 static int coda_open(struct file *file)
1899 struct video_device *vdev = video_devdata(file);
1900 struct coda_dev *dev = video_get_drvdata(vdev);
1901 struct coda_ctx *ctx = NULL;
1906 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
1910 idx = coda_next_free_instance(dev);
1915 set_bit(idx, &dev->instance_mask);
1917 name = kasprintf(GFP_KERNEL, "context%d", idx);
1920 goto err_coda_name_init;
1923 ctx->debugfs_entry = debugfs_create_dir(name, dev->debugfs_root);
1926 ctx->cvd = to_coda_video_device(vdev);
1927 ctx->inst_type = ctx->cvd->type;
1928 ctx->ops = ctx->cvd->ops;
1929 ctx->use_bit = !ctx->cvd->direct;
1930 init_completion(&ctx->completion);
1931 INIT_WORK(&ctx->pic_run_work, coda_pic_run_work);
1932 if (ctx->ops->seq_end_work)
1933 INIT_WORK(&ctx->seq_end_work, ctx->ops->seq_end_work);
1934 v4l2_fh_init(&ctx->fh, video_devdata(file));
1935 file->private_data = &ctx->fh;
1936 v4l2_fh_add(&ctx->fh);
1939 switch (dev->devtype->product) {
1942 ctx->frame_mem_ctrl = CODA9_FRAME_ENABLE_BWB;
1950 if (ctx->dev->vdoa && !disable_vdoa) {
1951 ctx->vdoa = vdoa_context_create(dev->vdoa);
1953 v4l2_warn(&dev->v4l2_dev,
1954 "Failed to create vdoa context: not using vdoa");
1956 ctx->use_vdoa = false;
1958 /* Power up and upload firmware if necessary */
1959 ret = pm_runtime_get_sync(&dev->plat_dev->dev);
1961 v4l2_err(&dev->v4l2_dev, "failed to power up: %d\n", ret);
1965 ret = clk_prepare_enable(dev->clk_per);
1969 ret = clk_prepare_enable(dev->clk_ahb);
1973 set_default_params(ctx);
1974 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
1975 ctx->ops->queue_init);
1976 if (IS_ERR(ctx->fh.m2m_ctx)) {
1977 ret = PTR_ERR(ctx->fh.m2m_ctx);
1979 v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
1984 ret = coda_ctrls_setup(ctx);
1986 v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
1987 goto err_ctrls_setup;
1990 ctx->fh.ctrl_handler = &ctx->ctrls;
1992 mutex_init(&ctx->bitstream_mutex);
1993 mutex_init(&ctx->buffer_mutex);
1994 INIT_LIST_HEAD(&ctx->buffer_meta_list);
1995 spin_lock_init(&ctx->buffer_meta_lock);
1998 list_add(&ctx->list, &dev->instances);
2001 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Created instance %d (%p)\n",
2007 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
2009 clk_disable_unprepare(dev->clk_ahb);
2011 clk_disable_unprepare(dev->clk_per);
2013 pm_runtime_put_sync(&dev->plat_dev->dev);
2015 v4l2_fh_del(&ctx->fh);
2016 v4l2_fh_exit(&ctx->fh);
2017 clear_bit(ctx->idx, &dev->instance_mask);
2024 static int coda_release(struct file *file)
2026 struct coda_dev *dev = video_drvdata(file);
2027 struct coda_ctx *ctx = fh_to_ctx(file->private_data);
2029 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Releasing instance %p\n",
2032 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
2033 coda_bit_stream_end_flag(ctx);
2035 /* If this instance is running, call .job_abort and wait for it to end */
2036 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
2039 vdoa_context_destroy(ctx->vdoa);
2041 /* In case the instance was not running, we still need to call SEQ_END */
2042 if (ctx->ops->seq_end_work) {
2043 queue_work(dev->workqueue, &ctx->seq_end_work);
2044 flush_work(&ctx->seq_end_work);
2048 list_del(&ctx->list);
2051 if (ctx->dev->devtype->product == CODA_DX6)
2052 coda_free_aux_buf(dev, &ctx->workbuf);
2054 v4l2_ctrl_handler_free(&ctx->ctrls);
2055 clk_disable_unprepare(dev->clk_ahb);
2056 clk_disable_unprepare(dev->clk_per);
2057 pm_runtime_put_sync(&dev->plat_dev->dev);
2058 v4l2_fh_del(&ctx->fh);
2059 v4l2_fh_exit(&ctx->fh);
2060 clear_bit(ctx->idx, &dev->instance_mask);
2061 if (ctx->ops->release)
2062 ctx->ops->release(ctx);
2063 debugfs_remove_recursive(ctx->debugfs_entry);
2069 static const struct v4l2_file_operations coda_fops = {
2070 .owner = THIS_MODULE,
2072 .release = coda_release,
2073 .poll = v4l2_m2m_fop_poll,
2074 .unlocked_ioctl = video_ioctl2,
2075 .mmap = v4l2_m2m_fop_mmap,
2078 static int coda_hw_init(struct coda_dev *dev)
2084 ret = clk_prepare_enable(dev->clk_per);
2088 ret = clk_prepare_enable(dev->clk_ahb);
2092 reset_control_reset(dev->rstc);
2095 * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
2096 * The 16-bit chars in the code buffer are in memory access
2097 * order, re-sort them to CODA order for register download.
2098 * Data in this SRAM survives a reboot.
2100 p = (u16 *)dev->codebuf.vaddr;
2101 if (dev->devtype->product == CODA_DX6) {
2102 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2103 data = CODA_DOWN_ADDRESS_SET(i) |
2104 CODA_DOWN_DATA_SET(p[i ^ 1]);
2105 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2108 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
2109 data = CODA_DOWN_ADDRESS_SET(i) |
2110 CODA_DOWN_DATA_SET(p[round_down(i, 4) +
2112 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
2116 /* Clear registers */
2117 for (i = 0; i < 64; i++)
2118 coda_write(dev, 0, CODA_REG_BIT_CODE_BUF_ADDR + i * 4);
2120 /* Tell the BIT where to find everything it needs */
2121 if (dev->devtype->product == CODA_960 ||
2122 dev->devtype->product == CODA_7541) {
2123 coda_write(dev, dev->tempbuf.paddr,
2124 CODA_REG_BIT_TEMP_BUF_ADDR);
2125 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
2127 coda_write(dev, dev->workbuf.paddr,
2128 CODA_REG_BIT_WORK_BUF_ADDR);
2130 coda_write(dev, dev->codebuf.paddr,
2131 CODA_REG_BIT_CODE_BUF_ADDR);
2132 coda_write(dev, 0, CODA_REG_BIT_CODE_RUN);
2134 /* Set default values */
2135 switch (dev->devtype->product) {
2137 coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH,
2138 CODA_REG_BIT_STREAM_CTRL);
2141 coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH,
2142 CODA_REG_BIT_STREAM_CTRL);
2144 if (dev->devtype->product == CODA_960)
2145 coda_write(dev, 1 << 12, CODA_REG_BIT_FRAME_MEM_CTRL);
2147 coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL);
2149 if (dev->devtype->product != CODA_DX6)
2150 coda_write(dev, 0, CODA7_REG_BIT_AXI_SRAM_USE);
2152 coda_write(dev, CODA_INT_INTERRUPT_ENABLE,
2153 CODA_REG_BIT_INT_ENABLE);
2155 /* Reset VPU and start processor */
2156 data = coda_read(dev, CODA_REG_BIT_CODE_RESET);
2157 data |= CODA_REG_RESET_ENABLE;
2158 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2160 data &= ~CODA_REG_RESET_ENABLE;
2161 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
2162 coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
2164 clk_disable_unprepare(dev->clk_ahb);
2165 clk_disable_unprepare(dev->clk_per);
2170 clk_disable_unprepare(dev->clk_per);
2175 static int coda_register_device(struct coda_dev *dev, int i)
2177 struct video_device *vfd = &dev->vfd[i];
2179 if (i >= dev->devtype->num_vdevs)
2182 strlcpy(vfd->name, dev->devtype->vdevs[i]->name, sizeof(vfd->name));
2183 vfd->fops = &coda_fops;
2184 vfd->ioctl_ops = &coda_ioctl_ops;
2185 vfd->release = video_device_release_empty,
2186 vfd->lock = &dev->dev_mutex;
2187 vfd->v4l2_dev = &dev->v4l2_dev;
2188 vfd->vfl_dir = VFL_DIR_M2M;
2189 video_set_drvdata(vfd, dev);
2191 /* Not applicable, use the selection API instead */
2192 v4l2_disable_ioctl(vfd, VIDIOC_CROPCAP);
2193 v4l2_disable_ioctl(vfd, VIDIOC_G_CROP);
2194 v4l2_disable_ioctl(vfd, VIDIOC_S_CROP);
2196 return video_register_device(vfd, VFL_TYPE_GRABBER, 0);
2199 static void coda_copy_firmware(struct coda_dev *dev, const u8 * const buf,
2202 u32 *src = (u32 *)buf;
2204 /* Check if the firmware has a 16-byte Freescale header, skip it */
2205 if (buf[0] == 'M' && buf[1] == 'X')
2208 * Check whether the firmware is in native order or pre-reordered for
2209 * memory access. The first instruction opcode always is 0xe40e.
2211 if (__le16_to_cpup((__le16 *)src) == 0xe40e) {
2212 u32 *dst = dev->codebuf.vaddr;
2215 /* Firmware in native order, reorder while copying */
2216 if (dev->devtype->product == CODA_DX6) {
2217 for (i = 0; i < (size - 16) / 4; i++)
2218 dst[i] = (src[i] << 16) | (src[i] >> 16);
2220 for (i = 0; i < (size - 16) / 4; i += 2) {
2221 dst[i] = (src[i + 1] << 16) | (src[i + 1] >> 16);
2222 dst[i + 1] = (src[i] << 16) | (src[i] >> 16);
2226 /* Copy the already reordered firmware image */
2227 memcpy(dev->codebuf.vaddr, src, size);
2231 static void coda_fw_callback(const struct firmware *fw, void *context);
2233 static int coda_firmware_request(struct coda_dev *dev)
2237 if (dev->firmware >= ARRAY_SIZE(dev->devtype->firmware))
2240 fw = dev->devtype->firmware[dev->firmware];
2242 dev_dbg(&dev->plat_dev->dev, "requesting firmware '%s' for %s\n", fw,
2243 coda_product_name(dev->devtype->product));
2245 return request_firmware_nowait(THIS_MODULE, true, fw,
2246 &dev->plat_dev->dev, GFP_KERNEL, dev,
2250 static void coda_fw_callback(const struct firmware *fw, void *context)
2252 struct coda_dev *dev = context;
2253 struct platform_device *pdev = dev->plat_dev;
2258 ret = coda_firmware_request(dev);
2260 v4l2_err(&dev->v4l2_dev, "firmware request failed\n");
2265 if (dev->firmware > 0) {
2267 * Since we can't suppress warnings for failed asynchronous
2268 * firmware requests, report that the fallback firmware was
2271 dev_info(&pdev->dev, "Using fallback firmware %s\n",
2272 dev->devtype->firmware[dev->firmware]);
2275 /* allocate auxiliary per-device code buffer for the BIT processor */
2276 ret = coda_alloc_aux_buf(dev, &dev->codebuf, fw->size, "codebuf",
2281 coda_copy_firmware(dev, fw->data, fw->size);
2282 release_firmware(fw);
2284 ret = coda_hw_init(dev);
2286 v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
2290 ret = coda_check_firmware(dev);
2294 dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops);
2295 if (IS_ERR(dev->m2m_dev)) {
2296 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
2300 for (i = 0; i < dev->devtype->num_vdevs; i++) {
2301 ret = coda_register_device(dev, i);
2303 v4l2_err(&dev->v4l2_dev,
2304 "Failed to register %s video device: %d\n",
2305 dev->devtype->vdevs[i]->name, ret);
2310 v4l2_info(&dev->v4l2_dev, "codec registered as /dev/video[%d-%d]\n",
2311 dev->vfd[0].num, dev->vfd[i - 1].num);
2313 pm_runtime_put_sync(&pdev->dev);
2318 video_unregister_device(&dev->vfd[i]);
2319 v4l2_m2m_release(dev->m2m_dev);
2321 pm_runtime_put_sync(&pdev->dev);
2324 enum coda_platform {
2331 static const struct coda_devtype coda_devdata[] = {
2334 "vpu_fw_imx27_TO2.bin",
2335 "vpu/vpu_fw_imx27_TO2.bin",
2336 "v4l-codadx6-imx27.bin"
2338 .product = CODA_DX6,
2339 .codecs = codadx6_codecs,
2340 .num_codecs = ARRAY_SIZE(codadx6_codecs),
2341 .vdevs = codadx6_video_devices,
2342 .num_vdevs = ARRAY_SIZE(codadx6_video_devices),
2343 .workbuf_size = 288 * 1024 + FMO_SLICE_SAVE_BUF_SIZE * 8 * 1024,
2344 .iram_size = 0xb000,
2349 "vpu/vpu_fw_imx53.bin",
2350 "v4l-coda7541-imx53.bin"
2352 .product = CODA_7541,
2353 .codecs = coda7_codecs,
2354 .num_codecs = ARRAY_SIZE(coda7_codecs),
2355 .vdevs = coda7_video_devices,
2356 .num_vdevs = ARRAY_SIZE(coda7_video_devices),
2357 .workbuf_size = 128 * 1024,
2358 .tempbuf_size = 304 * 1024,
2359 .iram_size = 0x14000,
2364 "vpu/vpu_fw_imx6q.bin",
2365 "v4l-coda960-imx6q.bin"
2367 .product = CODA_960,
2368 .codecs = coda9_codecs,
2369 .num_codecs = ARRAY_SIZE(coda9_codecs),
2370 .vdevs = coda9_video_devices,
2371 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
2372 .workbuf_size = 80 * 1024,
2373 .tempbuf_size = 204 * 1024,
2374 .iram_size = 0x21000,
2379 "vpu/vpu_fw_imx6d.bin",
2380 "v4l-coda960-imx6dl.bin"
2382 .product = CODA_960,
2383 .codecs = coda9_codecs,
2384 .num_codecs = ARRAY_SIZE(coda9_codecs),
2385 .vdevs = coda9_video_devices,
2386 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
2387 .workbuf_size = 80 * 1024,
2388 .tempbuf_size = 204 * 1024,
2389 .iram_size = 0x20000,
2393 static struct platform_device_id coda_platform_ids[] = {
2394 { .name = "coda-imx27", .driver_data = CODA_IMX27 },
2397 MODULE_DEVICE_TABLE(platform, coda_platform_ids);
2400 static const struct of_device_id coda_dt_ids[] = {
2401 { .compatible = "fsl,imx27-vpu", .data = &coda_devdata[CODA_IMX27] },
2402 { .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] },
2403 { .compatible = "fsl,imx6q-vpu", .data = &coda_devdata[CODA_IMX6Q] },
2404 { .compatible = "fsl,imx6dl-vpu", .data = &coda_devdata[CODA_IMX6DL] },
2407 MODULE_DEVICE_TABLE(of, coda_dt_ids);
2410 static int coda_probe(struct platform_device *pdev)
2412 const struct of_device_id *of_id =
2413 of_match_device(of_match_ptr(coda_dt_ids), &pdev->dev);
2414 const struct platform_device_id *pdev_id;
2415 struct coda_platform_data *pdata = pdev->dev.platform_data;
2416 struct device_node *np = pdev->dev.of_node;
2417 struct gen_pool *pool;
2418 struct coda_dev *dev;
2419 struct resource *res;
2422 dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
2426 pdev_id = of_id ? of_id->data : platform_get_device_id(pdev);
2429 dev->devtype = of_id->data;
2431 dev->devtype = &coda_devdata[pdev_id->driver_data];
2435 spin_lock_init(&dev->irqlock);
2436 INIT_LIST_HEAD(&dev->instances);
2438 dev->plat_dev = pdev;
2439 dev->clk_per = devm_clk_get(&pdev->dev, "per");
2440 if (IS_ERR(dev->clk_per)) {
2441 dev_err(&pdev->dev, "Could not get per clock\n");
2442 return PTR_ERR(dev->clk_per);
2445 dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
2446 if (IS_ERR(dev->clk_ahb)) {
2447 dev_err(&pdev->dev, "Could not get ahb clock\n");
2448 return PTR_ERR(dev->clk_ahb);
2451 /* Get memory for physical registers */
2452 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2453 dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
2454 if (IS_ERR(dev->regs_base))
2455 return PTR_ERR(dev->regs_base);
2458 irq = platform_get_irq_byname(pdev, "bit");
2460 irq = platform_get_irq(pdev, 0);
2462 dev_err(&pdev->dev, "failed to get irq resource\n");
2466 ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, coda_irq_handler,
2467 IRQF_ONESHOT, dev_name(&pdev->dev), dev);
2469 dev_err(&pdev->dev, "failed to request irq: %d\n", ret);
2473 dev->rstc = devm_reset_control_get_optional(&pdev->dev, NULL);
2474 if (IS_ERR(dev->rstc)) {
2475 ret = PTR_ERR(dev->rstc);
2476 dev_err(&pdev->dev, "failed get reset control: %d\n", ret);
2480 /* Get IRAM pool from device tree or platform data */
2481 pool = of_gen_pool_get(np, "iram", 0);
2483 pool = gen_pool_get(pdata->iram_dev, NULL);
2485 dev_err(&pdev->dev, "iram pool not available\n");
2488 dev->iram_pool = pool;
2490 /* Get vdoa_data if supported by the platform */
2491 dev->vdoa = coda_get_vdoa_data();
2492 if (PTR_ERR(dev->vdoa) == -EPROBE_DEFER)
2493 return -EPROBE_DEFER;
2495 ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
2499 mutex_init(&dev->dev_mutex);
2500 mutex_init(&dev->coda_mutex);
2502 dev->debugfs_root = debugfs_create_dir("coda", NULL);
2503 if (!dev->debugfs_root)
2504 dev_warn(&pdev->dev, "failed to create debugfs root\n");
2506 /* allocate auxiliary per-device buffers for the BIT processor */
2507 if (dev->devtype->product == CODA_DX6) {
2508 ret = coda_alloc_aux_buf(dev, &dev->workbuf,
2509 dev->devtype->workbuf_size, "workbuf",
2512 goto err_v4l2_register;
2515 if (dev->devtype->tempbuf_size) {
2516 ret = coda_alloc_aux_buf(dev, &dev->tempbuf,
2517 dev->devtype->tempbuf_size, "tempbuf",
2520 goto err_v4l2_register;
2523 dev->iram.size = dev->devtype->iram_size;
2524 dev->iram.vaddr = gen_pool_dma_alloc(dev->iram_pool, dev->iram.size,
2526 if (!dev->iram.vaddr) {
2527 dev_warn(&pdev->dev, "unable to alloc iram\n");
2529 memset(dev->iram.vaddr, 0, dev->iram.size);
2530 dev->iram.blob.data = dev->iram.vaddr;
2531 dev->iram.blob.size = dev->iram.size;
2532 dev->iram.dentry = debugfs_create_blob("iram", 0644,
2537 dev->workqueue = alloc_workqueue("coda", WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
2538 if (!dev->workqueue) {
2539 dev_err(&pdev->dev, "unable to alloc workqueue\n");
2541 goto err_v4l2_register;
2544 platform_set_drvdata(pdev, dev);
2547 * Start activated so we can directly call coda_hw_init in
2548 * coda_fw_callback regardless of whether CONFIG_PM is
2549 * enabled or whether the device is associated with a PM domain.
2551 pm_runtime_get_noresume(&pdev->dev);
2552 pm_runtime_set_active(&pdev->dev);
2553 pm_runtime_enable(&pdev->dev);
2555 ret = coda_firmware_request(dev);
2557 goto err_alloc_workqueue;
2560 err_alloc_workqueue:
2561 destroy_workqueue(dev->workqueue);
2563 v4l2_device_unregister(&dev->v4l2_dev);
2567 static int coda_remove(struct platform_device *pdev)
2569 struct coda_dev *dev = platform_get_drvdata(pdev);
2572 for (i = 0; i < ARRAY_SIZE(dev->vfd); i++) {
2573 if (video_get_drvdata(&dev->vfd[i]))
2574 video_unregister_device(&dev->vfd[i]);
2577 v4l2_m2m_release(dev->m2m_dev);
2578 pm_runtime_disable(&pdev->dev);
2579 v4l2_device_unregister(&dev->v4l2_dev);
2580 destroy_workqueue(dev->workqueue);
2581 if (dev->iram.vaddr)
2582 gen_pool_free(dev->iram_pool, (unsigned long)dev->iram.vaddr,
2584 coda_free_aux_buf(dev, &dev->codebuf);
2585 coda_free_aux_buf(dev, &dev->tempbuf);
2586 coda_free_aux_buf(dev, &dev->workbuf);
2587 debugfs_remove_recursive(dev->debugfs_root);
2592 static int coda_runtime_resume(struct device *dev)
2594 struct coda_dev *cdev = dev_get_drvdata(dev);
2597 if (dev->pm_domain && cdev->codebuf.vaddr) {
2598 ret = coda_hw_init(cdev);
2600 v4l2_err(&cdev->v4l2_dev, "HW initialization failed\n");
2607 static const struct dev_pm_ops coda_pm_ops = {
2608 SET_RUNTIME_PM_OPS(NULL, coda_runtime_resume, NULL)
2611 static struct platform_driver coda_driver = {
2612 .probe = coda_probe,
2613 .remove = coda_remove,
2616 .of_match_table = of_match_ptr(coda_dt_ids),
2619 .id_table = coda_platform_ids,
2622 module_platform_driver(coda_driver);
2624 MODULE_LICENSE("GPL");
2625 MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
2626 MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver");