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>
40 #include <media/videobuf2-vmalloc.h>
44 #define CODA_NAME "coda"
46 #define CODADX6_MAX_INSTANCES 4
47 #define CODA_MAX_FORMATS 4
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;
184 u32 src_formats[CODA_MAX_FORMATS];
185 u32 dst_formats[CODA_MAX_FORMATS];
188 static const struct coda_video_device coda_bit_encoder = {
189 .name = "coda-encoder",
190 .type = CODA_INST_ENCODER,
191 .ops = &coda_bit_encode_ops,
203 static const struct coda_video_device coda_bit_jpeg_encoder = {
204 .name = "coda-jpeg-encoder",
205 .type = CODA_INST_ENCODER,
206 .ops = &coda_bit_encode_ops,
211 V4L2_PIX_FMT_YUV422P,
218 static const struct coda_video_device coda_bit_decoder = {
219 .name = "coda-decoder",
220 .type = CODA_INST_DECODER,
221 .ops = &coda_bit_decode_ops,
233 static const struct coda_video_device coda_bit_jpeg_decoder = {
234 .name = "coda-jpeg-decoder",
235 .type = CODA_INST_DECODER,
236 .ops = &coda_bit_decode_ops,
244 V4L2_PIX_FMT_YUV422P,
248 static const struct coda_video_device *codadx6_video_devices[] = {
252 static const struct coda_video_device *coda7_video_devices[] = {
253 &coda_bit_jpeg_encoder,
254 &coda_bit_jpeg_decoder,
259 static const struct coda_video_device *coda9_video_devices[] = {
264 static bool coda_format_is_yuv(u32 fourcc)
267 case V4L2_PIX_FMT_YUV420:
268 case V4L2_PIX_FMT_YVU420:
269 case V4L2_PIX_FMT_NV12:
270 case V4L2_PIX_FMT_YUV422P:
277 static const char *coda_format_name(u32 fourcc)
281 for (i = 0; i < ARRAY_SIZE(coda_formats); i++) {
282 if (coda_formats[i].fourcc == fourcc)
283 return coda_formats[i].name;
290 * Normalize all supported YUV 4:2:0 formats to the value used in the codec
293 static u32 coda_format_normalize_yuv(u32 fourcc)
295 return coda_format_is_yuv(fourcc) ? V4L2_PIX_FMT_YUV420 : fourcc;
298 static const struct coda_codec *coda_find_codec(struct coda_dev *dev,
299 int src_fourcc, int dst_fourcc)
301 const struct coda_codec *codecs = dev->devtype->codecs;
302 int num_codecs = dev->devtype->num_codecs;
305 src_fourcc = coda_format_normalize_yuv(src_fourcc);
306 dst_fourcc = coda_format_normalize_yuv(dst_fourcc);
307 if (src_fourcc == dst_fourcc)
310 for (k = 0; k < num_codecs; k++) {
311 if (codecs[k].src_fourcc == src_fourcc &&
312 codecs[k].dst_fourcc == dst_fourcc)
322 static void coda_get_max_dimensions(struct coda_dev *dev,
323 const struct coda_codec *codec,
324 int *max_w, int *max_h)
326 const struct coda_codec *codecs = dev->devtype->codecs;
327 int num_codecs = dev->devtype->num_codecs;
335 for (k = 0, w = 0, h = 0; k < num_codecs; k++) {
336 w = max(w, codecs[k].max_w);
337 h = max(h, codecs[k].max_h);
347 const struct coda_video_device *to_coda_video_device(struct video_device *vdev)
349 struct coda_dev *dev = video_get_drvdata(vdev);
350 unsigned int i = vdev - dev->vfd;
352 if (i >= dev->devtype->num_vdevs)
355 return dev->devtype->vdevs[i];
358 const char *coda_product_name(int product)
370 snprintf(buf, sizeof(buf), "(0x%04x)", product);
376 * V4L2 ioctl() operations.
378 static int coda_querycap(struct file *file, void *priv,
379 struct v4l2_capability *cap)
381 struct coda_ctx *ctx = fh_to_ctx(priv);
383 strlcpy(cap->driver, CODA_NAME, sizeof(cap->driver));
384 strlcpy(cap->card, coda_product_name(ctx->dev->devtype->product),
386 strlcpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
387 cap->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
388 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
393 static int coda_enum_fmt(struct file *file, void *priv,
394 struct v4l2_fmtdesc *f)
396 struct video_device *vdev = video_devdata(file);
397 const struct coda_video_device *cvd = to_coda_video_device(vdev);
401 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
402 formats = cvd->src_formats;
403 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
404 formats = cvd->dst_formats;
408 if (f->index >= CODA_MAX_FORMATS || formats[f->index] == 0)
411 name = coda_format_name(formats[f->index]);
412 strlcpy(f->description, name, sizeof(f->description));
413 f->pixelformat = formats[f->index];
414 if (!coda_format_is_yuv(formats[f->index]))
415 f->flags |= V4L2_FMT_FLAG_COMPRESSED;
420 static int coda_g_fmt(struct file *file, void *priv,
421 struct v4l2_format *f)
423 struct coda_q_data *q_data;
424 struct coda_ctx *ctx = fh_to_ctx(priv);
426 q_data = get_q_data(ctx, f->type);
430 f->fmt.pix.field = V4L2_FIELD_NONE;
431 f->fmt.pix.pixelformat = q_data->fourcc;
432 f->fmt.pix.width = q_data->width;
433 f->fmt.pix.height = q_data->height;
434 f->fmt.pix.bytesperline = q_data->bytesperline;
436 f->fmt.pix.sizeimage = q_data->sizeimage;
437 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_JPEG)
438 f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
440 f->fmt.pix.colorspace = ctx->colorspace;
445 static int coda_try_pixelformat(struct coda_ctx *ctx, struct v4l2_format *f)
447 struct coda_q_data *q_data;
451 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
452 formats = ctx->cvd->src_formats;
453 else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
454 formats = ctx->cvd->dst_formats;
458 for (i = 0; i < CODA_MAX_FORMATS; i++) {
459 if (formats[i] == f->fmt.pix.pixelformat) {
460 f->fmt.pix.pixelformat = formats[i];
465 /* Fall back to currently set pixelformat */
466 q_data = get_q_data(ctx, f->type);
467 f->fmt.pix.pixelformat = q_data->fourcc;
472 static unsigned int coda_estimate_sizeimage(struct coda_ctx *ctx, u32 sizeimage,
473 u32 width, u32 height)
476 * This is a rough estimate for sensible compressed buffer
477 * sizes (between 1 and 16 bits per pixel). This could be
478 * improved by better format specific worst case estimates.
480 return round_up(clamp(sizeimage, width * height / 8,
481 width * height * 2), PAGE_SIZE);
484 static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec,
485 struct v4l2_format *f)
487 struct coda_dev *dev = ctx->dev;
488 unsigned int max_w, max_h;
489 enum v4l2_field field;
491 field = f->fmt.pix.field;
492 if (field == V4L2_FIELD_ANY)
493 field = V4L2_FIELD_NONE;
494 else if (V4L2_FIELD_NONE != field)
497 /* V4L2 specification suggests the driver corrects the format struct
498 * if any of the dimensions is unsupported */
499 f->fmt.pix.field = field;
501 coda_get_max_dimensions(dev, codec, &max_w, &max_h);
502 v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w, W_ALIGN,
503 &f->fmt.pix.height, MIN_H, max_h, H_ALIGN,
506 switch (f->fmt.pix.pixelformat) {
507 case V4L2_PIX_FMT_YUV420:
508 case V4L2_PIX_FMT_YVU420:
509 case V4L2_PIX_FMT_NV12:
511 * Frame stride must be at least multiple of 8,
512 * but multiple of 16 for h.264 or JPEG 4:2:x
514 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
515 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
516 f->fmt.pix.height * 3 / 2;
518 case V4L2_PIX_FMT_YUV422P:
519 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
520 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
521 f->fmt.pix.height * 2;
523 case V4L2_PIX_FMT_JPEG:
524 f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
526 case V4L2_PIX_FMT_H264:
527 case V4L2_PIX_FMT_MPEG4:
528 f->fmt.pix.bytesperline = 0;
529 f->fmt.pix.sizeimage = coda_estimate_sizeimage(ctx,
530 f->fmt.pix.sizeimage,
541 static int coda_try_fmt_vid_cap(struct file *file, void *priv,
542 struct v4l2_format *f)
544 struct coda_ctx *ctx = fh_to_ctx(priv);
545 const struct coda_q_data *q_data_src;
546 const struct coda_codec *codec;
547 struct vb2_queue *src_vq;
550 ret = coda_try_pixelformat(ctx, f);
554 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
557 * If the source format is already fixed, only allow the same output
560 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
561 if (vb2_is_streaming(src_vq)) {
562 f->fmt.pix.width = q_data_src->width;
563 f->fmt.pix.height = q_data_src->height;
566 f->fmt.pix.colorspace = ctx->colorspace;
568 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
569 codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
570 f->fmt.pix.pixelformat);
574 ret = coda_try_fmt(ctx, codec, f);
578 /* The h.264 decoder only returns complete 16x16 macroblocks */
579 if (codec && codec->src_fourcc == V4L2_PIX_FMT_H264) {
580 f->fmt.pix.width = f->fmt.pix.width;
581 f->fmt.pix.height = round_up(f->fmt.pix.height, 16);
582 f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16);
583 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
584 f->fmt.pix.height * 3 / 2;
590 static int coda_try_fmt_vid_out(struct file *file, void *priv,
591 struct v4l2_format *f)
593 struct coda_ctx *ctx = fh_to_ctx(priv);
594 struct coda_dev *dev = ctx->dev;
595 const struct coda_q_data *q_data_dst;
596 const struct coda_codec *codec;
599 ret = coda_try_pixelformat(ctx, f);
603 switch (f->fmt.pix.colorspace) {
604 case V4L2_COLORSPACE_REC709:
605 case V4L2_COLORSPACE_JPEG:
608 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_JPEG)
609 f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
611 f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
614 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
615 codec = coda_find_codec(dev, f->fmt.pix.pixelformat, q_data_dst->fourcc);
617 return coda_try_fmt(ctx, codec, f);
620 static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
622 struct coda_q_data *q_data;
623 struct vb2_queue *vq;
625 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
629 q_data = get_q_data(ctx, f->type);
633 if (vb2_is_busy(vq)) {
634 v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__);
638 q_data->fourcc = f->fmt.pix.pixelformat;
639 q_data->width = f->fmt.pix.width;
640 q_data->height = f->fmt.pix.height;
641 q_data->bytesperline = f->fmt.pix.bytesperline;
642 q_data->sizeimage = f->fmt.pix.sizeimage;
643 q_data->rect.left = 0;
644 q_data->rect.top = 0;
645 q_data->rect.width = f->fmt.pix.width;
646 q_data->rect.height = f->fmt.pix.height;
648 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
649 "Setting format for type %d, wxh: %dx%d, fmt: %d\n",
650 f->type, q_data->width, q_data->height, q_data->fourcc);
655 static int coda_s_fmt_vid_cap(struct file *file, void *priv,
656 struct v4l2_format *f)
658 struct coda_ctx *ctx = fh_to_ctx(priv);
661 ret = coda_try_fmt_vid_cap(file, priv, f);
665 return coda_s_fmt(ctx, f);
668 static int coda_s_fmt_vid_out(struct file *file, void *priv,
669 struct v4l2_format *f)
671 struct coda_ctx *ctx = fh_to_ctx(priv);
672 struct v4l2_format f_cap;
675 ret = coda_try_fmt_vid_out(file, priv, f);
679 ret = coda_s_fmt(ctx, f);
683 ctx->colorspace = f->fmt.pix.colorspace;
685 memset(&f_cap, 0, sizeof(f_cap));
686 f_cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
687 coda_g_fmt(file, priv, &f_cap);
688 f_cap.fmt.pix.width = f->fmt.pix.width;
689 f_cap.fmt.pix.height = f->fmt.pix.height;
691 ret = coda_try_fmt_vid_cap(file, priv, &f_cap);
695 return coda_s_fmt(ctx, &f_cap);
698 static int coda_reqbufs(struct file *file, void *priv,
699 struct v4l2_requestbuffers *rb)
701 struct coda_ctx *ctx = fh_to_ctx(priv);
704 ret = v4l2_m2m_reqbufs(file, ctx->fh.m2m_ctx, rb);
709 * Allow to allocate instance specific per-context buffers, such as
710 * bitstream ringbuffer, slice buffer, work buffer, etc. if needed.
712 if (rb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && ctx->ops->reqbufs)
713 return ctx->ops->reqbufs(ctx, rb);
718 static int coda_qbuf(struct file *file, void *priv,
719 struct v4l2_buffer *buf)
721 struct coda_ctx *ctx = fh_to_ctx(priv);
723 return v4l2_m2m_qbuf(file, ctx->fh.m2m_ctx, buf);
726 static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx,
727 struct vb2_buffer *buf)
729 struct vb2_queue *src_vq;
731 src_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
733 return ((ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) &&
734 (buf->v4l2_buf.sequence == (ctx->qsequence - 1)));
737 void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_buffer *buf,
738 enum vb2_buffer_state state)
740 const struct v4l2_event eos_event = {
741 .type = V4L2_EVENT_EOS
744 if (coda_buf_is_end_of_stream(ctx, buf)) {
745 buf->v4l2_buf.flags |= V4L2_BUF_FLAG_LAST;
747 v4l2_event_queue_fh(&ctx->fh, &eos_event);
750 v4l2_m2m_buf_done(buf, state);
753 static int coda_g_selection(struct file *file, void *fh,
754 struct v4l2_selection *s)
756 struct coda_ctx *ctx = fh_to_ctx(fh);
757 struct coda_q_data *q_data;
758 struct v4l2_rect r, *rsel;
760 q_data = get_q_data(ctx, s->type);
766 r.width = q_data->width;
767 r.height = q_data->height;
768 rsel = &q_data->rect;
771 case V4L2_SEL_TGT_CROP_DEFAULT:
772 case V4L2_SEL_TGT_CROP_BOUNDS:
775 case V4L2_SEL_TGT_CROP:
776 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
779 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
780 case V4L2_SEL_TGT_COMPOSE_PADDED:
783 case V4L2_SEL_TGT_COMPOSE:
784 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
785 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
797 static int coda_try_decoder_cmd(struct file *file, void *fh,
798 struct v4l2_decoder_cmd *dc)
800 if (dc->cmd != V4L2_DEC_CMD_STOP)
803 if (dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK)
806 if (!(dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY) && (dc->stop.pts != 0))
812 static int coda_decoder_cmd(struct file *file, void *fh,
813 struct v4l2_decoder_cmd *dc)
815 struct coda_ctx *ctx = fh_to_ctx(fh);
818 ret = coda_try_decoder_cmd(file, fh, dc);
822 /* Ignore decoder stop command silently in encoder context */
823 if (ctx->inst_type != CODA_INST_DECODER)
826 /* Set the stream-end flag on this context */
827 coda_bit_stream_end_flag(ctx);
829 v4l2_m2m_try_schedule(ctx->fh.m2m_ctx);
834 static int coda_subscribe_event(struct v4l2_fh *fh,
835 const struct v4l2_event_subscription *sub)
839 return v4l2_event_subscribe(fh, sub, 0, NULL);
841 return v4l2_ctrl_subscribe_event(fh, sub);
845 static const struct v4l2_ioctl_ops coda_ioctl_ops = {
846 .vidioc_querycap = coda_querycap,
848 .vidioc_enum_fmt_vid_cap = coda_enum_fmt,
849 .vidioc_g_fmt_vid_cap = coda_g_fmt,
850 .vidioc_try_fmt_vid_cap = coda_try_fmt_vid_cap,
851 .vidioc_s_fmt_vid_cap = coda_s_fmt_vid_cap,
853 .vidioc_enum_fmt_vid_out = coda_enum_fmt,
854 .vidioc_g_fmt_vid_out = coda_g_fmt,
855 .vidioc_try_fmt_vid_out = coda_try_fmt_vid_out,
856 .vidioc_s_fmt_vid_out = coda_s_fmt_vid_out,
858 .vidioc_reqbufs = coda_reqbufs,
859 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
861 .vidioc_qbuf = coda_qbuf,
862 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
863 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
864 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
866 .vidioc_streamon = v4l2_m2m_ioctl_streamon,
867 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
869 .vidioc_g_selection = coda_g_selection,
871 .vidioc_try_decoder_cmd = coda_try_decoder_cmd,
872 .vidioc_decoder_cmd = coda_decoder_cmd,
874 .vidioc_subscribe_event = coda_subscribe_event,
875 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
878 void coda_set_gdi_regs(struct coda_ctx *ctx)
880 struct gdi_tiled_map *tiled_map = &ctx->tiled_map;
881 struct coda_dev *dev = ctx->dev;
884 for (i = 0; i < 16; i++)
885 coda_write(dev, tiled_map->xy2ca_map[i],
886 CODA9_GDI_XY2_CAS_0 + 4 * i);
887 for (i = 0; i < 4; i++)
888 coda_write(dev, tiled_map->xy2ba_map[i],
889 CODA9_GDI_XY2_BA_0 + 4 * i);
890 for (i = 0; i < 16; i++)
891 coda_write(dev, tiled_map->xy2ra_map[i],
892 CODA9_GDI_XY2_RAS_0 + 4 * i);
893 coda_write(dev, tiled_map->xy2rbc_config, CODA9_GDI_XY2_RBC_CONFIG);
894 for (i = 0; i < 32; i++)
895 coda_write(dev, tiled_map->rbc2axi_map[i],
896 CODA9_GDI_RBC2_AXI_0 + 4 * i);
900 * Mem-to-mem operations.
903 static void coda_device_run(void *m2m_priv)
905 struct coda_ctx *ctx = m2m_priv;
906 struct coda_dev *dev = ctx->dev;
908 queue_work(dev->workqueue, &ctx->pic_run_work);
911 static void coda_pic_run_work(struct work_struct *work)
913 struct coda_ctx *ctx = container_of(work, struct coda_ctx, pic_run_work);
914 struct coda_dev *dev = ctx->dev;
917 mutex_lock(&ctx->buffer_mutex);
918 mutex_lock(&dev->coda_mutex);
920 ret = ctx->ops->prepare_run(ctx);
921 if (ret < 0 && ctx->inst_type == CODA_INST_DECODER) {
922 mutex_unlock(&dev->coda_mutex);
923 mutex_unlock(&ctx->buffer_mutex);
924 /* job_finish scheduled by prepare_decode */
928 if (!wait_for_completion_timeout(&ctx->completion,
929 msecs_to_jiffies(1000))) {
930 dev_err(&dev->plat_dev->dev, "CODA PIC_RUN timeout\n");
935 } else if (!ctx->aborting) {
936 ctx->ops->finish_run(ctx);
939 if ((ctx->aborting || (!ctx->streamon_cap && !ctx->streamon_out)) &&
940 ctx->ops->seq_end_work)
941 queue_work(dev->workqueue, &ctx->seq_end_work);
943 mutex_unlock(&dev->coda_mutex);
944 mutex_unlock(&ctx->buffer_mutex);
946 v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
949 static int coda_job_ready(void *m2m_priv)
951 struct coda_ctx *ctx = m2m_priv;
954 * For both 'P' and 'key' frame cases 1 picture
955 * and 1 frame are needed. In the decoder case,
956 * the compressed frame can be in the bitstream.
958 if (!v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) &&
959 ctx->inst_type != CODA_INST_DECODER) {
960 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
961 "not ready: not enough video buffers.\n");
965 if (!v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx)) {
966 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
967 "not ready: not enough video capture buffers.\n");
971 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) {
972 struct list_head *meta;
977 if (ctx->hold && !v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx)) {
978 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
979 "%d: not ready: on hold for more buffers.\n",
984 stream_end = ctx->bit_stream_param &
985 CODA_BIT_STREAM_END_FLAG;
988 list_for_each(meta, &ctx->buffer_meta_list)
991 src_bufs = v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx);
993 if (!stream_end && (num_metas + src_bufs) < 2) {
994 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
995 "%d: not ready: need 2 buffers available (%d, %d)\n",
996 ctx->idx, num_metas, src_bufs);
1001 if (!v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) &&
1002 !stream_end && (coda_get_bitstream_payload(ctx) < 512)) {
1003 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1004 "%d: not ready: not enough bitstream data (%d).\n",
1005 ctx->idx, coda_get_bitstream_payload(ctx));
1010 if (ctx->aborting) {
1011 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1012 "not ready: aborting\n");
1016 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1021 static void coda_job_abort(void *priv)
1023 struct coda_ctx *ctx = priv;
1027 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1031 static void coda_lock(void *m2m_priv)
1033 struct coda_ctx *ctx = m2m_priv;
1034 struct coda_dev *pcdev = ctx->dev;
1036 mutex_lock(&pcdev->dev_mutex);
1039 static void coda_unlock(void *m2m_priv)
1041 struct coda_ctx *ctx = m2m_priv;
1042 struct coda_dev *pcdev = ctx->dev;
1044 mutex_unlock(&pcdev->dev_mutex);
1047 static const struct v4l2_m2m_ops coda_m2m_ops = {
1048 .device_run = coda_device_run,
1049 .job_ready = coda_job_ready,
1050 .job_abort = coda_job_abort,
1052 .unlock = coda_unlock,
1055 static void coda_set_tiled_map_type(struct coda_ctx *ctx, int tiled_map_type)
1057 struct gdi_tiled_map *tiled_map = &ctx->tiled_map;
1058 int luma_map, chro_map, i;
1060 memset(tiled_map, 0, sizeof(*tiled_map));
1064 tiled_map->map_type = tiled_map_type;
1065 for (i = 0; i < 16; i++)
1066 tiled_map->xy2ca_map[i] = luma_map << 8 | chro_map;
1067 for (i = 0; i < 4; i++)
1068 tiled_map->xy2ba_map[i] = luma_map << 8 | chro_map;
1069 for (i = 0; i < 16; i++)
1070 tiled_map->xy2ra_map[i] = luma_map << 8 | chro_map;
1072 if (tiled_map_type == GDI_LINEAR_FRAME_MAP) {
1073 tiled_map->xy2rbc_config = 0;
1075 dev_err(&ctx->dev->plat_dev->dev, "invalid map type: %d\n",
1081 static void set_default_params(struct coda_ctx *ctx)
1083 unsigned int max_w, max_h, usize, csize;
1085 ctx->codec = coda_find_codec(ctx->dev, ctx->cvd->src_formats[0],
1086 ctx->cvd->dst_formats[0]);
1087 max_w = min(ctx->codec->max_w, 1920U);
1088 max_h = min(ctx->codec->max_h, 1088U);
1089 usize = max_w * max_h * 3 / 2;
1090 csize = coda_estimate_sizeimage(ctx, usize, max_w, max_h);
1092 ctx->params.codec_mode = ctx->codec->mode;
1093 ctx->colorspace = V4L2_COLORSPACE_REC709;
1094 ctx->params.framerate = 30;
1096 /* Default formats for output and input queues */
1097 ctx->q_data[V4L2_M2M_SRC].fourcc = ctx->codec->src_fourcc;
1098 ctx->q_data[V4L2_M2M_DST].fourcc = ctx->codec->dst_fourcc;
1099 ctx->q_data[V4L2_M2M_SRC].width = max_w;
1100 ctx->q_data[V4L2_M2M_SRC].height = max_h;
1101 ctx->q_data[V4L2_M2M_DST].width = max_w;
1102 ctx->q_data[V4L2_M2M_DST].height = max_h;
1103 if (ctx->codec->src_fourcc == V4L2_PIX_FMT_YUV420) {
1104 ctx->q_data[V4L2_M2M_SRC].bytesperline = max_w;
1105 ctx->q_data[V4L2_M2M_SRC].sizeimage = usize;
1106 ctx->q_data[V4L2_M2M_DST].bytesperline = 0;
1107 ctx->q_data[V4L2_M2M_DST].sizeimage = csize;
1109 ctx->q_data[V4L2_M2M_SRC].bytesperline = 0;
1110 ctx->q_data[V4L2_M2M_SRC].sizeimage = csize;
1111 ctx->q_data[V4L2_M2M_DST].bytesperline = max_w;
1112 ctx->q_data[V4L2_M2M_DST].sizeimage = usize;
1114 ctx->q_data[V4L2_M2M_SRC].rect.width = max_w;
1115 ctx->q_data[V4L2_M2M_SRC].rect.height = max_h;
1116 ctx->q_data[V4L2_M2M_DST].rect.width = max_w;
1117 ctx->q_data[V4L2_M2M_DST].rect.height = max_h;
1119 if (ctx->dev->devtype->product == CODA_960)
1120 coda_set_tiled_map_type(ctx, GDI_LINEAR_FRAME_MAP);
1126 static int coda_queue_setup(struct vb2_queue *vq,
1127 const struct v4l2_format *fmt,
1128 unsigned int *nbuffers, unsigned int *nplanes,
1129 unsigned int sizes[], void *alloc_ctxs[])
1131 struct coda_ctx *ctx = vb2_get_drv_priv(vq);
1132 struct coda_q_data *q_data;
1135 q_data = get_q_data(ctx, vq->type);
1136 size = q_data->sizeimage;
1141 /* Set to vb2-dma-contig allocator context, ignored by vb2-vmalloc */
1142 alloc_ctxs[0] = ctx->dev->alloc_ctx;
1144 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1145 "get %d buffer(s) of size %d each.\n", *nbuffers, size);
1150 static int coda_buf_prepare(struct vb2_buffer *vb)
1152 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1153 struct coda_q_data *q_data;
1155 q_data = get_q_data(ctx, vb->vb2_queue->type);
1157 if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
1158 v4l2_warn(&ctx->dev->v4l2_dev,
1159 "%s data will not fit into plane (%lu < %lu)\n",
1160 __func__, vb2_plane_size(vb, 0),
1161 (long)q_data->sizeimage);
1168 static void coda_buf_queue(struct vb2_buffer *vb)
1170 struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1171 struct vb2_queue *vq = vb->vb2_queue;
1172 struct coda_q_data *q_data;
1174 q_data = get_q_data(ctx, vb->vb2_queue->type);
1177 * In the decoder case, immediately try to copy the buffer into the
1178 * bitstream ringbuffer and mark it as ready to be dequeued.
1180 if (ctx->bitstream.size && vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1182 * For backwards compatibility, queuing an empty buffer marks
1185 if (vb2_get_plane_payload(vb, 0) == 0)
1186 coda_bit_stream_end_flag(ctx);
1187 mutex_lock(&ctx->bitstream_mutex);
1188 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb);
1189 if (vb2_is_streaming(vb->vb2_queue))
1190 coda_fill_bitstream(ctx, true);
1191 mutex_unlock(&ctx->bitstream_mutex);
1193 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vb);
1197 int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
1198 size_t size, const char *name, struct dentry *parent)
1200 buf->vaddr = dma_alloc_coherent(&dev->plat_dev->dev, size, &buf->paddr,
1203 v4l2_err(&dev->v4l2_dev,
1204 "Failed to allocate %s buffer of size %u\n",
1211 if (name && parent) {
1212 buf->blob.data = buf->vaddr;
1213 buf->blob.size = size;
1214 buf->dentry = debugfs_create_blob(name, 0644, parent,
1217 dev_warn(&dev->plat_dev->dev,
1218 "failed to create debugfs entry %s\n", name);
1224 void coda_free_aux_buf(struct coda_dev *dev,
1225 struct coda_aux_buf *buf)
1228 dma_free_coherent(&dev->plat_dev->dev, buf->size,
1229 buf->vaddr, buf->paddr);
1232 debugfs_remove(buf->dentry);
1237 static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
1239 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1240 struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev;
1241 struct coda_q_data *q_data_src, *q_data_dst;
1242 struct vb2_buffer *buf;
1245 q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
1246 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1247 if (q_data_src->fourcc == V4L2_PIX_FMT_H264 ||
1248 (q_data_src->fourcc == V4L2_PIX_FMT_JPEG &&
1249 ctx->dev->devtype->product == CODA_7541)) {
1250 /* copy the buffers that were queued before streamon */
1251 mutex_lock(&ctx->bitstream_mutex);
1252 coda_fill_bitstream(ctx, false);
1253 mutex_unlock(&ctx->bitstream_mutex);
1255 if (coda_get_bitstream_payload(ctx) < 512) {
1266 ctx->streamon_out = 1;
1273 ctx->streamon_cap = 1;
1276 /* Don't start the coda unless both queues are on */
1277 if (!(ctx->streamon_out & ctx->streamon_cap))
1280 q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
1281 if ((q_data_src->width != q_data_dst->width &&
1282 round_up(q_data_src->width, 16) != q_data_dst->width) ||
1283 (q_data_src->height != q_data_dst->height &&
1284 round_up(q_data_src->height, 16) != q_data_dst->height)) {
1285 v4l2_err(v4l2_dev, "can't convert %dx%d to %dx%d\n",
1286 q_data_src->width, q_data_src->height,
1287 q_data_dst->width, q_data_dst->height);
1292 /* Allow BIT decoder device_run with no new buffers queued */
1293 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
1294 v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true);
1296 ctx->gopcounter = ctx->params.gop_size - 1;
1298 ctx->codec = coda_find_codec(ctx->dev, q_data_src->fourcc,
1299 q_data_dst->fourcc);
1301 v4l2_err(v4l2_dev, "couldn't tell instance type.\n");
1306 if (q_data_dst->fourcc == V4L2_PIX_FMT_JPEG)
1307 ctx->params.gop_size = 1;
1308 ctx->gopcounter = ctx->params.gop_size - 1;
1310 ret = ctx->ops->start_streaming(ctx);
1311 if (ctx->inst_type == CODA_INST_DECODER) {
1318 ctx->initialized = 1;
1322 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1323 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1324 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1326 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1327 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_QUEUED);
1332 static void coda_stop_streaming(struct vb2_queue *q)
1334 struct coda_ctx *ctx = vb2_get_drv_priv(q);
1335 struct coda_dev *dev = ctx->dev;
1336 struct vb2_buffer *buf;
1339 stop = ctx->streamon_out && ctx->streamon_cap;
1341 if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1342 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1343 "%s: output\n", __func__);
1344 ctx->streamon_out = 0;
1346 coda_bit_stream_end_flag(ctx);
1350 while ((buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
1351 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1353 v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
1354 "%s: capture\n", __func__);
1355 ctx->streamon_cap = 0;
1358 ctx->sequence_offset = 0;
1360 while ((buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx)))
1361 v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
1365 struct coda_buffer_meta *meta;
1367 if (ctx->ops->seq_end_work) {
1368 queue_work(dev->workqueue, &ctx->seq_end_work);
1369 flush_work(&ctx->seq_end_work);
1371 mutex_lock(&ctx->bitstream_mutex);
1372 while (!list_empty(&ctx->buffer_meta_list)) {
1373 meta = list_first_entry(&ctx->buffer_meta_list,
1374 struct coda_buffer_meta, list);
1375 list_del(&meta->list);
1378 mutex_unlock(&ctx->bitstream_mutex);
1379 kfifo_init(&ctx->bitstream_fifo,
1380 ctx->bitstream.vaddr, ctx->bitstream.size);
1381 ctx->initialized = 0;
1382 ctx->runcounter = 0;
1387 static const struct vb2_ops coda_qops = {
1388 .queue_setup = coda_queue_setup,
1389 .buf_prepare = coda_buf_prepare,
1390 .buf_queue = coda_buf_queue,
1391 .start_streaming = coda_start_streaming,
1392 .stop_streaming = coda_stop_streaming,
1393 .wait_prepare = vb2_ops_wait_prepare,
1394 .wait_finish = vb2_ops_wait_finish,
1397 static int coda_s_ctrl(struct v4l2_ctrl *ctrl)
1399 struct coda_ctx *ctx =
1400 container_of(ctrl->handler, struct coda_ctx, ctrls);
1402 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1403 "s_ctrl: id = %d, val = %d\n", ctrl->id, ctrl->val);
1406 case V4L2_CID_HFLIP:
1408 ctx->params.rot_mode |= CODA_MIR_HOR;
1410 ctx->params.rot_mode &= ~CODA_MIR_HOR;
1412 case V4L2_CID_VFLIP:
1414 ctx->params.rot_mode |= CODA_MIR_VER;
1416 ctx->params.rot_mode &= ~CODA_MIR_VER;
1418 case V4L2_CID_MPEG_VIDEO_BITRATE:
1419 ctx->params.bitrate = ctrl->val / 1000;
1421 case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
1422 ctx->params.gop_size = ctrl->val;
1424 case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
1425 ctx->params.h264_intra_qp = ctrl->val;
1427 case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
1428 ctx->params.h264_inter_qp = ctrl->val;
1430 case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
1431 ctx->params.h264_min_qp = ctrl->val;
1433 case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
1434 ctx->params.h264_max_qp = ctrl->val;
1436 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA:
1437 ctx->params.h264_deblk_alpha = ctrl->val;
1439 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA:
1440 ctx->params.h264_deblk_beta = ctrl->val;
1442 case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
1443 ctx->params.h264_deblk_enabled = (ctrl->val ==
1444 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
1446 case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP:
1447 ctx->params.mpeg4_intra_qp = ctrl->val;
1449 case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP:
1450 ctx->params.mpeg4_inter_qp = ctrl->val;
1452 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
1453 ctx->params.slice_mode = ctrl->val;
1455 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
1456 ctx->params.slice_max_mb = ctrl->val;
1458 case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES:
1459 ctx->params.slice_max_bits = ctrl->val * 8;
1461 case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
1463 case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB:
1464 ctx->params.intra_refresh = ctrl->val;
1466 case V4L2_CID_JPEG_COMPRESSION_QUALITY:
1467 coda_set_jpeg_compression_quality(ctx, ctrl->val);
1469 case V4L2_CID_JPEG_RESTART_INTERVAL:
1470 ctx->params.jpeg_restart_interval = ctrl->val;
1473 v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
1474 "Invalid control, id=%d, val=%d\n",
1475 ctrl->id, ctrl->val);
1482 static const struct v4l2_ctrl_ops coda_ctrl_ops = {
1483 .s_ctrl = coda_s_ctrl,
1486 static void coda_encode_ctrls(struct coda_ctx *ctx)
1488 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1489 V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1000, 0);
1490 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1491 V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 60, 1, 16);
1492 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1493 V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 0, 51, 1, 25);
1494 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1495 V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 0, 51, 1, 25);
1496 if (ctx->dev->devtype->product != CODA_960) {
1497 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1498 V4L2_CID_MPEG_VIDEO_H264_MIN_QP, 0, 51, 1, 12);
1500 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1501 V4L2_CID_MPEG_VIDEO_H264_MAX_QP, 0, 51, 1, 51);
1502 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1503 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA, 0, 15, 1, 0);
1504 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1505 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA, 0, 15, 1, 0);
1506 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1507 V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
1508 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED, 0x0,
1509 V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
1510 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1511 V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2);
1512 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1513 V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2);
1514 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1515 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
1516 V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES, 0x0,
1517 V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
1518 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1519 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1);
1520 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1521 V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES, 1, 0x3fffffff, 1,
1523 v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops,
1524 V4L2_CID_MPEG_VIDEO_HEADER_MODE,
1525 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
1526 (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE),
1527 V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
1528 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1529 V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB, 0,
1530 1920 * 1088 / 256, 1, 0);
1533 static void coda_jpeg_encode_ctrls(struct coda_ctx *ctx)
1535 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1536 V4L2_CID_JPEG_COMPRESSION_QUALITY, 5, 100, 1, 50);
1537 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1538 V4L2_CID_JPEG_RESTART_INTERVAL, 0, 100, 1, 0);
1541 static int coda_ctrls_setup(struct coda_ctx *ctx)
1543 v4l2_ctrl_handler_init(&ctx->ctrls, 2);
1545 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1546 V4L2_CID_HFLIP, 0, 1, 1, 0);
1547 v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
1548 V4L2_CID_VFLIP, 0, 1, 1, 0);
1549 if (ctx->inst_type == CODA_INST_ENCODER) {
1550 if (ctx->cvd->dst_formats[0] == V4L2_PIX_FMT_JPEG)
1551 coda_jpeg_encode_ctrls(ctx);
1553 coda_encode_ctrls(ctx);
1556 if (ctx->ctrls.error) {
1557 v4l2_err(&ctx->dev->v4l2_dev,
1558 "control initialization error (%d)",
1563 return v4l2_ctrl_handler_setup(&ctx->ctrls);
1566 static int coda_queue_init(struct coda_ctx *ctx, struct vb2_queue *vq)
1569 vq->ops = &coda_qops;
1570 vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
1571 vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1572 vq->lock = &ctx->dev->dev_mutex;
1573 /* One way to indicate end-of-stream for coda is to set the
1574 * bytesused == 0. However by default videobuf2 handles bytesused
1575 * equal to 0 as a special case and changes its value to the size
1576 * of the buffer. Set the allow_zero_bytesused flag, so
1577 * that videobuf2 will keep the value of bytesused intact.
1579 vq->allow_zero_bytesused = 1;
1581 return vb2_queue_init(vq);
1584 int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
1585 struct vb2_queue *dst_vq)
1589 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1590 src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
1591 src_vq->mem_ops = &vb2_dma_contig_memops;
1593 ret = coda_queue_init(priv, src_vq);
1597 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1598 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
1599 dst_vq->mem_ops = &vb2_dma_contig_memops;
1601 return coda_queue_init(priv, dst_vq);
1604 int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
1605 struct vb2_queue *dst_vq)
1609 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
1610 src_vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
1611 src_vq->mem_ops = &vb2_vmalloc_memops;
1613 ret = coda_queue_init(priv, src_vq);
1617 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1618 dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
1619 dst_vq->mem_ops = &vb2_dma_contig_memops;
1621 return coda_queue_init(priv, dst_vq);
1624 static int coda_next_free_instance(struct coda_dev *dev)
1626 int idx = ffz(dev->instance_mask);
1629 (dev->devtype->product == CODA_DX6 && idx > CODADX6_MAX_INSTANCES))
1639 static int coda_open(struct file *file)
1641 struct video_device *vdev = video_devdata(file);
1642 struct coda_dev *dev = video_get_drvdata(vdev);
1643 struct coda_ctx *ctx = NULL;
1648 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
1652 idx = coda_next_free_instance(dev);
1657 set_bit(idx, &dev->instance_mask);
1659 name = kasprintf(GFP_KERNEL, "context%d", idx);
1662 goto err_coda_name_init;
1665 ctx->debugfs_entry = debugfs_create_dir(name, dev->debugfs_root);
1668 ctx->cvd = to_coda_video_device(vdev);
1669 ctx->inst_type = ctx->cvd->type;
1670 ctx->ops = ctx->cvd->ops;
1671 ctx->use_bit = !ctx->cvd->direct;
1672 init_completion(&ctx->completion);
1673 INIT_WORK(&ctx->pic_run_work, coda_pic_run_work);
1674 if (ctx->ops->seq_end_work)
1675 INIT_WORK(&ctx->seq_end_work, ctx->ops->seq_end_work);
1676 v4l2_fh_init(&ctx->fh, video_devdata(file));
1677 file->private_data = &ctx->fh;
1678 v4l2_fh_add(&ctx->fh);
1681 switch (dev->devtype->product) {
1683 ctx->frame_mem_ctrl = 1 << 12;
1692 /* Power up and upload firmware if necessary */
1693 ret = pm_runtime_get_sync(&dev->plat_dev->dev);
1695 v4l2_err(&dev->v4l2_dev, "failed to power up: %d\n", ret);
1699 ret = clk_prepare_enable(dev->clk_per);
1703 ret = clk_prepare_enable(dev->clk_ahb);
1707 set_default_params(ctx);
1708 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
1709 ctx->ops->queue_init);
1710 if (IS_ERR(ctx->fh.m2m_ctx)) {
1711 ret = PTR_ERR(ctx->fh.m2m_ctx);
1713 v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n",
1718 ret = coda_ctrls_setup(ctx);
1720 v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n");
1721 goto err_ctrls_setup;
1724 ctx->fh.ctrl_handler = &ctx->ctrls;
1726 mutex_init(&ctx->bitstream_mutex);
1727 mutex_init(&ctx->buffer_mutex);
1728 INIT_LIST_HEAD(&ctx->buffer_meta_list);
1731 list_add(&ctx->list, &dev->instances);
1734 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Created instance %d (%p)\n",
1740 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
1742 clk_disable_unprepare(dev->clk_ahb);
1744 clk_disable_unprepare(dev->clk_per);
1746 pm_runtime_put_sync(&dev->plat_dev->dev);
1748 v4l2_fh_del(&ctx->fh);
1749 v4l2_fh_exit(&ctx->fh);
1750 clear_bit(ctx->idx, &dev->instance_mask);
1757 static int coda_release(struct file *file)
1759 struct coda_dev *dev = video_drvdata(file);
1760 struct coda_ctx *ctx = fh_to_ctx(file->private_data);
1762 v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Releasing instance %p\n",
1765 if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit)
1766 coda_bit_stream_end_flag(ctx);
1768 /* If this instance is running, call .job_abort and wait for it to end */
1769 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
1771 /* In case the instance was not running, we still need to call SEQ_END */
1772 if (ctx->initialized && ctx->ops->seq_end_work) {
1773 queue_work(dev->workqueue, &ctx->seq_end_work);
1774 flush_work(&ctx->seq_end_work);
1778 list_del(&ctx->list);
1781 if (ctx->dev->devtype->product == CODA_DX6)
1782 coda_free_aux_buf(dev, &ctx->workbuf);
1784 v4l2_ctrl_handler_free(&ctx->ctrls);
1785 clk_disable_unprepare(dev->clk_ahb);
1786 clk_disable_unprepare(dev->clk_per);
1787 pm_runtime_put_sync(&dev->plat_dev->dev);
1788 v4l2_fh_del(&ctx->fh);
1789 v4l2_fh_exit(&ctx->fh);
1790 clear_bit(ctx->idx, &dev->instance_mask);
1791 if (ctx->ops->release)
1792 ctx->ops->release(ctx);
1793 debugfs_remove_recursive(ctx->debugfs_entry);
1799 static const struct v4l2_file_operations coda_fops = {
1800 .owner = THIS_MODULE,
1802 .release = coda_release,
1803 .poll = v4l2_m2m_fop_poll,
1804 .unlocked_ioctl = video_ioctl2,
1805 .mmap = v4l2_m2m_fop_mmap,
1808 static int coda_hw_init(struct coda_dev *dev)
1814 ret = clk_prepare_enable(dev->clk_per);
1818 ret = clk_prepare_enable(dev->clk_ahb);
1823 reset_control_reset(dev->rstc);
1826 * Copy the first CODA_ISRAM_SIZE in the internal SRAM.
1827 * The 16-bit chars in the code buffer are in memory access
1828 * order, re-sort them to CODA order for register download.
1829 * Data in this SRAM survives a reboot.
1831 p = (u16 *)dev->codebuf.vaddr;
1832 if (dev->devtype->product == CODA_DX6) {
1833 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
1834 data = CODA_DOWN_ADDRESS_SET(i) |
1835 CODA_DOWN_DATA_SET(p[i ^ 1]);
1836 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
1839 for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) {
1840 data = CODA_DOWN_ADDRESS_SET(i) |
1841 CODA_DOWN_DATA_SET(p[round_down(i, 4) +
1843 coda_write(dev, data, CODA_REG_BIT_CODE_DOWN);
1847 /* Clear registers */
1848 for (i = 0; i < 64; i++)
1849 coda_write(dev, 0, CODA_REG_BIT_CODE_BUF_ADDR + i * 4);
1851 /* Tell the BIT where to find everything it needs */
1852 if (dev->devtype->product == CODA_960 ||
1853 dev->devtype->product == CODA_7541) {
1854 coda_write(dev, dev->tempbuf.paddr,
1855 CODA_REG_BIT_TEMP_BUF_ADDR);
1856 coda_write(dev, 0, CODA_REG_BIT_BIT_STREAM_PARAM);
1858 coda_write(dev, dev->workbuf.paddr,
1859 CODA_REG_BIT_WORK_BUF_ADDR);
1861 coda_write(dev, dev->codebuf.paddr,
1862 CODA_REG_BIT_CODE_BUF_ADDR);
1863 coda_write(dev, 0, CODA_REG_BIT_CODE_RUN);
1865 /* Set default values */
1866 switch (dev->devtype->product) {
1868 coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH,
1869 CODA_REG_BIT_STREAM_CTRL);
1872 coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH,
1873 CODA_REG_BIT_STREAM_CTRL);
1875 if (dev->devtype->product == CODA_960)
1876 coda_write(dev, 1 << 12, CODA_REG_BIT_FRAME_MEM_CTRL);
1878 coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL);
1880 if (dev->devtype->product != CODA_DX6)
1881 coda_write(dev, 0, CODA7_REG_BIT_AXI_SRAM_USE);
1883 coda_write(dev, CODA_INT_INTERRUPT_ENABLE,
1884 CODA_REG_BIT_INT_ENABLE);
1886 /* Reset VPU and start processor */
1887 data = coda_read(dev, CODA_REG_BIT_CODE_RESET);
1888 data |= CODA_REG_RESET_ENABLE;
1889 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
1891 data &= ~CODA_REG_RESET_ENABLE;
1892 coda_write(dev, data, CODA_REG_BIT_CODE_RESET);
1893 coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN);
1895 clk_disable_unprepare(dev->clk_ahb);
1896 clk_disable_unprepare(dev->clk_per);
1901 clk_disable_unprepare(dev->clk_per);
1906 static int coda_register_device(struct coda_dev *dev, int i)
1908 struct video_device *vfd = &dev->vfd[i];
1910 if (i >= dev->devtype->num_vdevs)
1913 strlcpy(vfd->name, dev->devtype->vdevs[i]->name, sizeof(vfd->name));
1914 vfd->fops = &coda_fops;
1915 vfd->ioctl_ops = &coda_ioctl_ops;
1916 vfd->release = video_device_release_empty,
1917 vfd->lock = &dev->dev_mutex;
1918 vfd->v4l2_dev = &dev->v4l2_dev;
1919 vfd->vfl_dir = VFL_DIR_M2M;
1920 video_set_drvdata(vfd, dev);
1922 /* Not applicable, use the selection API instead */
1923 v4l2_disable_ioctl(vfd, VIDIOC_CROPCAP);
1924 v4l2_disable_ioctl(vfd, VIDIOC_G_CROP);
1925 v4l2_disable_ioctl(vfd, VIDIOC_S_CROP);
1927 return video_register_device(vfd, VFL_TYPE_GRABBER, 0);
1930 static void coda_fw_callback(const struct firmware *fw, void *context)
1932 struct coda_dev *dev = context;
1933 struct platform_device *pdev = dev->plat_dev;
1937 v4l2_err(&dev->v4l2_dev, "firmware request failed\n");
1941 /* allocate auxiliary per-device code buffer for the BIT processor */
1942 ret = coda_alloc_aux_buf(dev, &dev->codebuf, fw->size, "codebuf",
1947 /* Copy the whole firmware image to the code buffer */
1948 memcpy(dev->codebuf.vaddr, fw->data, fw->size);
1949 release_firmware(fw);
1951 ret = coda_hw_init(dev);
1953 v4l2_err(&dev->v4l2_dev, "HW initialization failed\n");
1957 ret = coda_check_firmware(dev);
1961 dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
1962 if (IS_ERR(dev->alloc_ctx)) {
1963 v4l2_err(&dev->v4l2_dev, "Failed to alloc vb2 context\n");
1967 dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops);
1968 if (IS_ERR(dev->m2m_dev)) {
1969 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
1973 for (i = 0; i < dev->devtype->num_vdevs; i++) {
1974 ret = coda_register_device(dev, i);
1976 v4l2_err(&dev->v4l2_dev,
1977 "Failed to register %s video device: %d\n",
1978 dev->devtype->vdevs[i]->name, ret);
1983 v4l2_info(&dev->v4l2_dev, "codec registered as /dev/video[%d-%d]\n",
1984 dev->vfd[0].num, dev->vfd[i - 1].num);
1986 pm_runtime_put_sync(&pdev->dev);
1991 video_unregister_device(&dev->vfd[i]);
1992 v4l2_m2m_release(dev->m2m_dev);
1994 vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
1996 pm_runtime_put_sync(&pdev->dev);
1999 static int coda_firmware_request(struct coda_dev *dev)
2001 char *fw = dev->devtype->firmware;
2003 dev_dbg(&dev->plat_dev->dev, "requesting firmware '%s' for %s\n", fw,
2004 coda_product_name(dev->devtype->product));
2006 return request_firmware_nowait(THIS_MODULE, true,
2007 fw, &dev->plat_dev->dev, GFP_KERNEL, dev, coda_fw_callback);
2010 enum coda_platform {
2017 static const struct coda_devtype coda_devdata[] = {
2019 .firmware = "v4l-codadx6-imx27.bin",
2020 .product = CODA_DX6,
2021 .codecs = codadx6_codecs,
2022 .num_codecs = ARRAY_SIZE(codadx6_codecs),
2023 .vdevs = codadx6_video_devices,
2024 .num_vdevs = ARRAY_SIZE(codadx6_video_devices),
2025 .workbuf_size = 288 * 1024 + FMO_SLICE_SAVE_BUF_SIZE * 8 * 1024,
2026 .iram_size = 0xb000,
2029 .firmware = "v4l-coda7541-imx53.bin",
2030 .product = CODA_7541,
2031 .codecs = coda7_codecs,
2032 .num_codecs = ARRAY_SIZE(coda7_codecs),
2033 .vdevs = coda7_video_devices,
2034 .num_vdevs = ARRAY_SIZE(coda7_video_devices),
2035 .workbuf_size = 128 * 1024,
2036 .tempbuf_size = 304 * 1024,
2037 .iram_size = 0x14000,
2040 .firmware = "v4l-coda960-imx6q.bin",
2041 .product = CODA_960,
2042 .codecs = coda9_codecs,
2043 .num_codecs = ARRAY_SIZE(coda9_codecs),
2044 .vdevs = coda9_video_devices,
2045 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
2046 .workbuf_size = 80 * 1024,
2047 .tempbuf_size = 204 * 1024,
2048 .iram_size = 0x21000,
2051 .firmware = "v4l-coda960-imx6dl.bin",
2052 .product = CODA_960,
2053 .codecs = coda9_codecs,
2054 .num_codecs = ARRAY_SIZE(coda9_codecs),
2055 .vdevs = coda9_video_devices,
2056 .num_vdevs = ARRAY_SIZE(coda9_video_devices),
2057 .workbuf_size = 80 * 1024,
2058 .tempbuf_size = 204 * 1024,
2059 .iram_size = 0x20000,
2063 static struct platform_device_id coda_platform_ids[] = {
2064 { .name = "coda-imx27", .driver_data = CODA_IMX27 },
2067 MODULE_DEVICE_TABLE(platform, coda_platform_ids);
2070 static const struct of_device_id coda_dt_ids[] = {
2071 { .compatible = "fsl,imx27-vpu", .data = &coda_devdata[CODA_IMX27] },
2072 { .compatible = "fsl,imx53-vpu", .data = &coda_devdata[CODA_IMX53] },
2073 { .compatible = "fsl,imx6q-vpu", .data = &coda_devdata[CODA_IMX6Q] },
2074 { .compatible = "fsl,imx6dl-vpu", .data = &coda_devdata[CODA_IMX6DL] },
2077 MODULE_DEVICE_TABLE(of, coda_dt_ids);
2080 static int coda_probe(struct platform_device *pdev)
2082 const struct of_device_id *of_id =
2083 of_match_device(of_match_ptr(coda_dt_ids), &pdev->dev);
2084 const struct platform_device_id *pdev_id;
2085 struct coda_platform_data *pdata = pdev->dev.platform_data;
2086 struct device_node *np = pdev->dev.of_node;
2087 struct gen_pool *pool;
2088 struct coda_dev *dev;
2089 struct resource *res;
2092 dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
2096 pdev_id = of_id ? of_id->data : platform_get_device_id(pdev);
2099 dev->devtype = of_id->data;
2100 } else if (pdev_id) {
2101 dev->devtype = &coda_devdata[pdev_id->driver_data];
2104 goto err_v4l2_register;
2107 spin_lock_init(&dev->irqlock);
2108 INIT_LIST_HEAD(&dev->instances);
2110 dev->plat_dev = pdev;
2111 dev->clk_per = devm_clk_get(&pdev->dev, "per");
2112 if (IS_ERR(dev->clk_per)) {
2113 dev_err(&pdev->dev, "Could not get per clock\n");
2114 return PTR_ERR(dev->clk_per);
2117 dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
2118 if (IS_ERR(dev->clk_ahb)) {
2119 dev_err(&pdev->dev, "Could not get ahb clock\n");
2120 return PTR_ERR(dev->clk_ahb);
2123 /* Get memory for physical registers */
2124 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2125 dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
2126 if (IS_ERR(dev->regs_base))
2127 return PTR_ERR(dev->regs_base);
2130 irq = platform_get_irq_byname(pdev, "bit");
2132 irq = platform_get_irq(pdev, 0);
2134 dev_err(&pdev->dev, "failed to get irq resource\n");
2138 ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, coda_irq_handler,
2139 IRQF_ONESHOT, dev_name(&pdev->dev), dev);
2141 dev_err(&pdev->dev, "failed to request irq: %d\n", ret);
2145 dev->rstc = devm_reset_control_get_optional(&pdev->dev, NULL);
2146 if (IS_ERR(dev->rstc)) {
2147 ret = PTR_ERR(dev->rstc);
2148 if (ret == -ENOENT || ret == -ENOSYS) {
2151 dev_err(&pdev->dev, "failed get reset control: %d\n",
2157 /* Get IRAM pool from device tree or platform data */
2158 pool = of_gen_pool_get(np, "iram", 0);
2160 pool = gen_pool_get(pdata->iram_dev);
2162 dev_err(&pdev->dev, "iram pool not available\n");
2165 dev->iram_pool = pool;
2167 ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
2171 mutex_init(&dev->dev_mutex);
2172 mutex_init(&dev->coda_mutex);
2174 dev->debugfs_root = debugfs_create_dir("coda", NULL);
2175 if (!dev->debugfs_root)
2176 dev_warn(&pdev->dev, "failed to create debugfs root\n");
2178 /* allocate auxiliary per-device buffers for the BIT processor */
2179 if (dev->devtype->product == CODA_DX6) {
2180 ret = coda_alloc_aux_buf(dev, &dev->workbuf,
2181 dev->devtype->workbuf_size, "workbuf",
2184 goto err_v4l2_register;
2187 if (dev->devtype->tempbuf_size) {
2188 ret = coda_alloc_aux_buf(dev, &dev->tempbuf,
2189 dev->devtype->tempbuf_size, "tempbuf",
2192 goto err_v4l2_register;
2195 dev->iram.size = dev->devtype->iram_size;
2196 dev->iram.vaddr = gen_pool_dma_alloc(dev->iram_pool, dev->iram.size,
2198 if (!dev->iram.vaddr) {
2199 dev_warn(&pdev->dev, "unable to alloc iram\n");
2201 memset(dev->iram.vaddr, 0, dev->iram.size);
2202 dev->iram.blob.data = dev->iram.vaddr;
2203 dev->iram.blob.size = dev->iram.size;
2204 dev->iram.dentry = debugfs_create_blob("iram", 0644,
2209 dev->workqueue = alloc_workqueue("coda", WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
2210 if (!dev->workqueue) {
2211 dev_err(&pdev->dev, "unable to alloc workqueue\n");
2213 goto err_v4l2_register;
2216 platform_set_drvdata(pdev, dev);
2219 * Start activated so we can directly call coda_hw_init in
2220 * coda_fw_callback regardless of whether CONFIG_PM is
2221 * enabled or whether the device is associated with a PM domain.
2223 pm_runtime_get_noresume(&pdev->dev);
2224 pm_runtime_set_active(&pdev->dev);
2225 pm_runtime_enable(&pdev->dev);
2227 return coda_firmware_request(dev);
2230 v4l2_device_unregister(&dev->v4l2_dev);
2234 static int coda_remove(struct platform_device *pdev)
2236 struct coda_dev *dev = platform_get_drvdata(pdev);
2239 for (i = 0; i < ARRAY_SIZE(dev->vfd); i++) {
2240 if (video_get_drvdata(&dev->vfd[i]))
2241 video_unregister_device(&dev->vfd[i]);
2244 v4l2_m2m_release(dev->m2m_dev);
2245 pm_runtime_disable(&pdev->dev);
2247 vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
2248 v4l2_device_unregister(&dev->v4l2_dev);
2249 destroy_workqueue(dev->workqueue);
2250 if (dev->iram.vaddr)
2251 gen_pool_free(dev->iram_pool, (unsigned long)dev->iram.vaddr,
2253 coda_free_aux_buf(dev, &dev->codebuf);
2254 coda_free_aux_buf(dev, &dev->tempbuf);
2255 coda_free_aux_buf(dev, &dev->workbuf);
2256 debugfs_remove_recursive(dev->debugfs_root);
2261 static int coda_runtime_resume(struct device *dev)
2263 struct coda_dev *cdev = dev_get_drvdata(dev);
2266 if (dev->pm_domain && cdev->codebuf.vaddr) {
2267 ret = coda_hw_init(cdev);
2269 v4l2_err(&cdev->v4l2_dev, "HW initialization failed\n");
2276 static const struct dev_pm_ops coda_pm_ops = {
2277 SET_RUNTIME_PM_OPS(NULL, coda_runtime_resume, NULL)
2280 static struct platform_driver coda_driver = {
2281 .probe = coda_probe,
2282 .remove = coda_remove,
2285 .of_match_table = of_match_ptr(coda_dt_ids),
2288 .id_table = coda_platform_ids,
2291 module_platform_driver(coda_driver);
2293 MODULE_LICENSE("GPL");
2294 MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
2295 MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver");