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1476 lines
37 KiB
1476 lines
37 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* Copyright (C) STMicroelectronics SA 2015 |
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* Authors: Yannick Fertre <[email protected]> |
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* Hugues Fruchet <[email protected]> |
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*/ |
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|
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#include <linux/module.h> |
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#include <linux/mod_devicetable.h> |
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#include <linux/platform_device.h> |
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#include <linux/slab.h> |
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#include <media/v4l2-event.h> |
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#include <media/v4l2-ioctl.h> |
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#include <media/videobuf2-dma-contig.h> |
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|
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#include "hva.h" |
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#include "hva-hw.h" |
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#define MIN_FRAMES 1 |
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#define MIN_STREAMS 1 |
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#define HVA_MIN_WIDTH 32 |
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#define HVA_MAX_WIDTH 1920 |
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#define HVA_MIN_HEIGHT 32 |
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#define HVA_MAX_HEIGHT 1920 |
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/* HVA requires a 16x16 pixels alignment for frames */ |
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#define HVA_WIDTH_ALIGNMENT 16 |
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#define HVA_HEIGHT_ALIGNMENT 16 |
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#define HVA_DEFAULT_WIDTH HVA_MIN_WIDTH |
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#define HVA_DEFAULT_HEIGHT HVA_MIN_HEIGHT |
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#define HVA_DEFAULT_FRAME_NUM 1 |
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#define HVA_DEFAULT_FRAME_DEN 30 |
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#define to_type_str(type) (type == V4L2_BUF_TYPE_VIDEO_OUTPUT ? \ |
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"frame" : "stream") |
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#define fh_to_ctx(f) (container_of(f, struct hva_ctx, fh)) |
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|
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/* registry of available encoders */ |
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static const struct hva_enc *hva_encoders[] = { |
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&nv12h264enc, |
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&nv21h264enc, |
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}; |
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static inline int frame_size(u32 w, u32 h, u32 fmt) |
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{ |
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switch (fmt) { |
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case V4L2_PIX_FMT_NV12: |
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case V4L2_PIX_FMT_NV21: |
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return (w * h * 3) / 2; |
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default: |
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return 0; |
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} |
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} |
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|
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static inline int frame_stride(u32 w, u32 fmt) |
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{ |
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switch (fmt) { |
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case V4L2_PIX_FMT_NV12: |
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case V4L2_PIX_FMT_NV21: |
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return w; |
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default: |
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return 0; |
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} |
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} |
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|
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static inline int frame_alignment(u32 fmt) |
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{ |
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switch (fmt) { |
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case V4L2_PIX_FMT_NV12: |
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case V4L2_PIX_FMT_NV21: |
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/* multiple of 2 */ |
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return 2; |
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default: |
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return 1; |
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} |
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} |
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static inline int estimated_stream_size(u32 w, u32 h) |
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{ |
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/* |
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* HVA only encodes in YUV420 format, whatever the frame format. |
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* A compression ratio of 2 is assumed: thus, the maximum size |
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* of a stream is estimated to ((width x height x 3 / 2) / 2) |
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*/ |
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return (w * h * 3) / 4; |
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} |
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static void set_default_params(struct hva_ctx *ctx) |
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{ |
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struct hva_frameinfo *frameinfo = &ctx->frameinfo; |
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struct hva_streaminfo *streaminfo = &ctx->streaminfo; |
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|
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frameinfo->pixelformat = V4L2_PIX_FMT_NV12; |
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frameinfo->width = HVA_DEFAULT_WIDTH; |
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frameinfo->height = HVA_DEFAULT_HEIGHT; |
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frameinfo->aligned_width = ALIGN(frameinfo->width, |
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HVA_WIDTH_ALIGNMENT); |
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frameinfo->aligned_height = ALIGN(frameinfo->height, |
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HVA_HEIGHT_ALIGNMENT); |
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frameinfo->size = frame_size(frameinfo->aligned_width, |
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frameinfo->aligned_height, |
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frameinfo->pixelformat); |
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streaminfo->streamformat = V4L2_PIX_FMT_H264; |
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streaminfo->width = HVA_DEFAULT_WIDTH; |
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streaminfo->height = HVA_DEFAULT_HEIGHT; |
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ctx->colorspace = V4L2_COLORSPACE_REC709; |
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ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT; |
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ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; |
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ctx->quantization = V4L2_QUANTIZATION_DEFAULT; |
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ctx->max_stream_size = estimated_stream_size(streaminfo->width, |
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streaminfo->height); |
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} |
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static const struct hva_enc *hva_find_encoder(struct hva_ctx *ctx, |
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u32 pixelformat, |
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u32 streamformat) |
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{ |
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struct hva_dev *hva = ctx_to_hdev(ctx); |
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const struct hva_enc *enc; |
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unsigned int i; |
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for (i = 0; i < hva->nb_of_encoders; i++) { |
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enc = hva->encoders[i]; |
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if ((enc->pixelformat == pixelformat) && |
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(enc->streamformat == streamformat)) |
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return enc; |
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} |
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return NULL; |
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} |
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static void register_format(u32 format, u32 formats[], u32 *nb_of_formats) |
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{ |
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u32 i; |
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bool found = false; |
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for (i = 0; i < *nb_of_formats; i++) { |
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if (format == formats[i]) { |
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found = true; |
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break; |
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} |
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} |
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if (!found) |
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formats[(*nb_of_formats)++] = format; |
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} |
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static void register_formats(struct hva_dev *hva) |
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{ |
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unsigned int i; |
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for (i = 0; i < hva->nb_of_encoders; i++) { |
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register_format(hva->encoders[i]->pixelformat, |
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hva->pixelformats, |
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&hva->nb_of_pixelformats); |
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register_format(hva->encoders[i]->streamformat, |
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hva->streamformats, |
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&hva->nb_of_streamformats); |
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} |
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} |
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static void register_encoders(struct hva_dev *hva) |
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{ |
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struct device *dev = hva_to_dev(hva); |
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unsigned int i; |
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for (i = 0; i < ARRAY_SIZE(hva_encoders); i++) { |
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if (hva->nb_of_encoders >= HVA_MAX_ENCODERS) { |
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dev_dbg(dev, |
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"%s failed to register %s encoder (%d maximum reached)\n", |
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HVA_PREFIX, hva_encoders[i]->name, |
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HVA_MAX_ENCODERS); |
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return; |
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} |
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hva->encoders[hva->nb_of_encoders++] = hva_encoders[i]; |
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dev_info(dev, "%s %s encoder registered\n", HVA_PREFIX, |
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hva_encoders[i]->name); |
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} |
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} |
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static int hva_open_encoder(struct hva_ctx *ctx, u32 streamformat, |
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u32 pixelformat, struct hva_enc **penc) |
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{ |
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struct hva_dev *hva = ctx_to_hdev(ctx); |
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struct device *dev = ctx_to_dev(ctx); |
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struct hva_enc *enc; |
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int ret; |
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/* find an encoder which can deal with these formats */ |
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enc = (struct hva_enc *)hva_find_encoder(ctx, pixelformat, |
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streamformat); |
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if (!enc) { |
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dev_err(dev, "%s no encoder found matching %4.4s => %4.4s\n", |
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ctx->name, (char *)&pixelformat, (char *)&streamformat); |
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return -EINVAL; |
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} |
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dev_dbg(dev, "%s one encoder matching %4.4s => %4.4s\n", |
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ctx->name, (char *)&pixelformat, (char *)&streamformat); |
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/* update instance name */ |
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snprintf(ctx->name, sizeof(ctx->name), "[%3d:%4.4s]", |
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hva->instance_id, (char *)&streamformat); |
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/* open encoder instance */ |
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ret = enc->open(ctx); |
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if (ret) { |
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dev_err(dev, "%s failed to open encoder instance (%d)\n", |
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ctx->name, ret); |
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return ret; |
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} |
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dev_dbg(dev, "%s %s encoder opened\n", ctx->name, enc->name); |
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*penc = enc; |
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return ret; |
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} |
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static void hva_dbg_summary(struct hva_ctx *ctx) |
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{ |
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struct device *dev = ctx_to_dev(ctx); |
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struct hva_streaminfo *stream = &ctx->streaminfo; |
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struct hva_frameinfo *frame = &ctx->frameinfo; |
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if (!(ctx->flags & HVA_FLAG_STREAMINFO)) |
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return; |
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dev_dbg(dev, "%s %4.4s %dx%d > %4.4s %dx%d %s %s: %d frames encoded, %d system errors, %d encoding errors, %d frame errors\n", |
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ctx->name, |
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(char *)&frame->pixelformat, |
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frame->aligned_width, frame->aligned_height, |
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(char *)&stream->streamformat, |
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stream->width, stream->height, |
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stream->profile, stream->level, |
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ctx->encoded_frames, |
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ctx->sys_errors, |
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ctx->encode_errors, |
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ctx->frame_errors); |
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} |
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/* |
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* V4L2 ioctl operations |
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*/ |
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static int hva_querycap(struct file *file, void *priv, |
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struct v4l2_capability *cap) |
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{ |
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struct hva_ctx *ctx = fh_to_ctx(file->private_data); |
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struct hva_dev *hva = ctx_to_hdev(ctx); |
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strscpy(cap->driver, HVA_NAME, sizeof(cap->driver)); |
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strscpy(cap->card, hva->vdev->name, sizeof(cap->card)); |
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snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", |
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hva->pdev->name); |
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return 0; |
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} |
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static int hva_enum_fmt_stream(struct file *file, void *priv, |
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struct v4l2_fmtdesc *f) |
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{ |
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struct hva_ctx *ctx = fh_to_ctx(file->private_data); |
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struct hva_dev *hva = ctx_to_hdev(ctx); |
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if (unlikely(f->index >= hva->nb_of_streamformats)) |
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return -EINVAL; |
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f->pixelformat = hva->streamformats[f->index]; |
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return 0; |
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} |
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static int hva_enum_fmt_frame(struct file *file, void *priv, |
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struct v4l2_fmtdesc *f) |
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{ |
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struct hva_ctx *ctx = fh_to_ctx(file->private_data); |
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struct hva_dev *hva = ctx_to_hdev(ctx); |
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if (unlikely(f->index >= hva->nb_of_pixelformats)) |
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return -EINVAL; |
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f->pixelformat = hva->pixelformats[f->index]; |
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return 0; |
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} |
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static int hva_g_fmt_stream(struct file *file, void *fh, struct v4l2_format *f) |
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{ |
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struct hva_ctx *ctx = fh_to_ctx(file->private_data); |
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struct hva_streaminfo *streaminfo = &ctx->streaminfo; |
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f->fmt.pix.width = streaminfo->width; |
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f->fmt.pix.height = streaminfo->height; |
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f->fmt.pix.field = V4L2_FIELD_NONE; |
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f->fmt.pix.colorspace = ctx->colorspace; |
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f->fmt.pix.xfer_func = ctx->xfer_func; |
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f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc; |
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f->fmt.pix.quantization = ctx->quantization; |
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f->fmt.pix.pixelformat = streaminfo->streamformat; |
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f->fmt.pix.bytesperline = 0; |
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f->fmt.pix.sizeimage = ctx->max_stream_size; |
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return 0; |
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} |
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static int hva_g_fmt_frame(struct file *file, void *fh, struct v4l2_format *f) |
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{ |
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struct hva_ctx *ctx = fh_to_ctx(file->private_data); |
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struct hva_frameinfo *frameinfo = &ctx->frameinfo; |
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f->fmt.pix.width = frameinfo->width; |
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f->fmt.pix.height = frameinfo->height; |
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f->fmt.pix.field = V4L2_FIELD_NONE; |
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f->fmt.pix.colorspace = ctx->colorspace; |
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f->fmt.pix.xfer_func = ctx->xfer_func; |
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f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc; |
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f->fmt.pix.quantization = ctx->quantization; |
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f->fmt.pix.pixelformat = frameinfo->pixelformat; |
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f->fmt.pix.bytesperline = frame_stride(frameinfo->aligned_width, |
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frameinfo->pixelformat); |
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f->fmt.pix.sizeimage = frameinfo->size; |
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return 0; |
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} |
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static int hva_try_fmt_stream(struct file *file, void *priv, |
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struct v4l2_format *f) |
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{ |
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struct hva_ctx *ctx = fh_to_ctx(file->private_data); |
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struct device *dev = ctx_to_dev(ctx); |
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struct v4l2_pix_format *pix = &f->fmt.pix; |
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u32 streamformat = pix->pixelformat; |
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const struct hva_enc *enc; |
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u32 width, height; |
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u32 stream_size; |
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enc = hva_find_encoder(ctx, ctx->frameinfo.pixelformat, streamformat); |
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if (!enc) { |
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dev_dbg(dev, |
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"%s V4L2 TRY_FMT (CAPTURE): unsupported format %.4s\n", |
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ctx->name, (char *)&pix->pixelformat); |
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return -EINVAL; |
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} |
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width = pix->width; |
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height = pix->height; |
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if (ctx->flags & HVA_FLAG_FRAMEINFO) { |
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/* |
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* if the frame resolution is already fixed, only allow the |
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* same stream resolution |
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*/ |
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pix->width = ctx->frameinfo.width; |
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pix->height = ctx->frameinfo.height; |
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if ((pix->width != width) || (pix->height != height)) |
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dev_dbg(dev, |
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"%s V4L2 TRY_FMT (CAPTURE): resolution updated %dx%d -> %dx%d to fit frame resolution\n", |
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ctx->name, width, height, |
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pix->width, pix->height); |
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} else { |
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/* adjust width & height */ |
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v4l_bound_align_image(&pix->width, |
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HVA_MIN_WIDTH, enc->max_width, |
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0, |
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&pix->height, |
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HVA_MIN_HEIGHT, enc->max_height, |
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0, |
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0); |
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if ((pix->width != width) || (pix->height != height)) |
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dev_dbg(dev, |
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"%s V4L2 TRY_FMT (CAPTURE): resolution updated %dx%d -> %dx%d to fit min/max/alignment\n", |
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ctx->name, width, height, |
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pix->width, pix->height); |
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} |
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stream_size = estimated_stream_size(pix->width, pix->height); |
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if (pix->sizeimage < stream_size) |
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pix->sizeimage = stream_size; |
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pix->bytesperline = 0; |
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pix->colorspace = ctx->colorspace; |
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pix->xfer_func = ctx->xfer_func; |
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pix->ycbcr_enc = ctx->ycbcr_enc; |
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pix->quantization = ctx->quantization; |
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pix->field = V4L2_FIELD_NONE; |
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return 0; |
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} |
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static int hva_try_fmt_frame(struct file *file, void *priv, |
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struct v4l2_format *f) |
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{ |
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struct hva_ctx *ctx = fh_to_ctx(file->private_data); |
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struct device *dev = ctx_to_dev(ctx); |
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struct v4l2_pix_format *pix = &f->fmt.pix; |
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u32 pixelformat = pix->pixelformat; |
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const struct hva_enc *enc; |
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u32 width, height; |
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enc = hva_find_encoder(ctx, pixelformat, ctx->streaminfo.streamformat); |
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if (!enc) { |
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dev_dbg(dev, |
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"%s V4L2 TRY_FMT (OUTPUT): unsupported format %.4s\n", |
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ctx->name, (char *)&pixelformat); |
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return -EINVAL; |
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} |
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|
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/* adjust width & height */ |
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width = pix->width; |
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height = pix->height; |
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v4l_bound_align_image(&pix->width, |
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HVA_MIN_WIDTH, HVA_MAX_WIDTH, |
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frame_alignment(pixelformat) - 1, |
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&pix->height, |
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HVA_MIN_HEIGHT, HVA_MAX_HEIGHT, |
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frame_alignment(pixelformat) - 1, |
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0); |
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|
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if ((pix->width != width) || (pix->height != height)) |
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dev_dbg(dev, |
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"%s V4L2 TRY_FMT (OUTPUT): resolution updated %dx%d -> %dx%d to fit min/max/alignment\n", |
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ctx->name, width, height, pix->width, pix->height); |
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|
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width = ALIGN(pix->width, HVA_WIDTH_ALIGNMENT); |
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height = ALIGN(pix->height, HVA_HEIGHT_ALIGNMENT); |
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|
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if (!pix->colorspace) { |
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pix->colorspace = V4L2_COLORSPACE_REC709; |
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pix->xfer_func = V4L2_XFER_FUNC_DEFAULT; |
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pix->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; |
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pix->quantization = V4L2_QUANTIZATION_DEFAULT; |
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} |
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pix->bytesperline = frame_stride(width, pixelformat); |
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pix->sizeimage = frame_size(width, height, pixelformat); |
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pix->field = V4L2_FIELD_NONE; |
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|
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return 0; |
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} |
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|
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static int hva_s_fmt_stream(struct file *file, void *fh, struct v4l2_format *f) |
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{ |
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struct hva_ctx *ctx = fh_to_ctx(file->private_data); |
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struct device *dev = ctx_to_dev(ctx); |
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struct vb2_queue *vq; |
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int ret; |
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|
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ret = hva_try_fmt_stream(file, fh, f); |
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if (ret) { |
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dev_dbg(dev, "%s V4L2 S_FMT (CAPTURE): unsupported format %.4s\n", |
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ctx->name, (char *)&f->fmt.pix.pixelformat); |
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return ret; |
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} |
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|
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vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); |
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if (vb2_is_streaming(vq)) { |
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dev_dbg(dev, "%s V4L2 S_FMT (CAPTURE): queue busy\n", |
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ctx->name); |
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return -EBUSY; |
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} |
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|
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ctx->max_stream_size = f->fmt.pix.sizeimage; |
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ctx->streaminfo.width = f->fmt.pix.width; |
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ctx->streaminfo.height = f->fmt.pix.height; |
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ctx->streaminfo.streamformat = f->fmt.pix.pixelformat; |
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ctx->flags |= HVA_FLAG_STREAMINFO; |
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|
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return 0; |
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} |
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|
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static int hva_s_fmt_frame(struct file *file, void *fh, struct v4l2_format *f) |
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{ |
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struct hva_ctx *ctx = fh_to_ctx(file->private_data); |
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struct device *dev = ctx_to_dev(ctx); |
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struct v4l2_pix_format *pix = &f->fmt.pix; |
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struct vb2_queue *vq; |
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int ret; |
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|
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ret = hva_try_fmt_frame(file, fh, f); |
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if (ret) { |
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dev_dbg(dev, "%s V4L2 S_FMT (OUTPUT): unsupported format %.4s\n", |
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ctx->name, (char *)&pix->pixelformat); |
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return ret; |
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} |
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|
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vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); |
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if (vb2_is_streaming(vq)) { |
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dev_dbg(dev, "%s V4L2 S_FMT (OUTPUT): queue busy\n", ctx->name); |
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return -EBUSY; |
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} |
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|
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ctx->colorspace = pix->colorspace; |
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ctx->xfer_func = pix->xfer_func; |
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ctx->ycbcr_enc = pix->ycbcr_enc; |
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ctx->quantization = pix->quantization; |
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|
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ctx->frameinfo.aligned_width = ALIGN(pix->width, HVA_WIDTH_ALIGNMENT); |
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ctx->frameinfo.aligned_height = ALIGN(pix->height, |
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HVA_HEIGHT_ALIGNMENT); |
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ctx->frameinfo.size = pix->sizeimage; |
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ctx->frameinfo.pixelformat = pix->pixelformat; |
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ctx->frameinfo.width = pix->width; |
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ctx->frameinfo.height = pix->height; |
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ctx->flags |= HVA_FLAG_FRAMEINFO; |
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|
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return 0; |
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} |
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|
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static int hva_g_parm(struct file *file, void *fh, struct v4l2_streamparm *sp) |
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{ |
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struct hva_ctx *ctx = fh_to_ctx(file->private_data); |
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struct v4l2_fract *time_per_frame = &ctx->ctrls.time_per_frame; |
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|
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if (sp->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) |
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return -EINVAL; |
|
|
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sp->parm.output.capability = V4L2_CAP_TIMEPERFRAME; |
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sp->parm.output.timeperframe.numerator = time_per_frame->numerator; |
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sp->parm.output.timeperframe.denominator = |
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time_per_frame->denominator; |
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|
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return 0; |
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} |
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|
|
static int hva_s_parm(struct file *file, void *fh, struct v4l2_streamparm *sp) |
|
{ |
|
struct hva_ctx *ctx = fh_to_ctx(file->private_data); |
|
struct v4l2_fract *time_per_frame = &ctx->ctrls.time_per_frame; |
|
|
|
if (sp->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) |
|
return -EINVAL; |
|
|
|
if (!sp->parm.output.timeperframe.numerator || |
|
!sp->parm.output.timeperframe.denominator) |
|
return hva_g_parm(file, fh, sp); |
|
|
|
sp->parm.output.capability = V4L2_CAP_TIMEPERFRAME; |
|
time_per_frame->numerator = sp->parm.output.timeperframe.numerator; |
|
time_per_frame->denominator = |
|
sp->parm.output.timeperframe.denominator; |
|
|
|
return 0; |
|
} |
|
|
|
static int hva_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) |
|
{ |
|
struct hva_ctx *ctx = fh_to_ctx(file->private_data); |
|
struct device *dev = ctx_to_dev(ctx); |
|
|
|
if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
|
/* |
|
* depending on the targeted compressed video format, the |
|
* capture buffer might contain headers (e.g. H.264 SPS/PPS) |
|
* filled in by the driver client; the size of these data is |
|
* copied from the bytesused field of the V4L2 buffer in the |
|
* payload field of the hva stream buffer |
|
*/ |
|
struct vb2_queue *vq; |
|
struct hva_stream *stream; |
|
struct vb2_buffer *vb2_buf; |
|
|
|
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, buf->type); |
|
|
|
if (buf->index >= vq->num_buffers) { |
|
dev_dbg(dev, "%s buffer index %d out of range (%d)\n", |
|
ctx->name, buf->index, vq->num_buffers); |
|
return -EINVAL; |
|
} |
|
|
|
vb2_buf = vb2_get_buffer(vq, buf->index); |
|
stream = to_hva_stream(to_vb2_v4l2_buffer(vb2_buf)); |
|
stream->bytesused = buf->bytesused; |
|
} |
|
|
|
return v4l2_m2m_qbuf(file, ctx->fh.m2m_ctx, buf); |
|
} |
|
|
|
/* V4L2 ioctl ops */ |
|
static const struct v4l2_ioctl_ops hva_ioctl_ops = { |
|
.vidioc_querycap = hva_querycap, |
|
.vidioc_enum_fmt_vid_cap = hva_enum_fmt_stream, |
|
.vidioc_enum_fmt_vid_out = hva_enum_fmt_frame, |
|
.vidioc_g_fmt_vid_cap = hva_g_fmt_stream, |
|
.vidioc_g_fmt_vid_out = hva_g_fmt_frame, |
|
.vidioc_try_fmt_vid_cap = hva_try_fmt_stream, |
|
.vidioc_try_fmt_vid_out = hva_try_fmt_frame, |
|
.vidioc_s_fmt_vid_cap = hva_s_fmt_stream, |
|
.vidioc_s_fmt_vid_out = hva_s_fmt_frame, |
|
.vidioc_g_parm = hva_g_parm, |
|
.vidioc_s_parm = hva_s_parm, |
|
.vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, |
|
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, |
|
.vidioc_querybuf = v4l2_m2m_ioctl_querybuf, |
|
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf, |
|
.vidioc_qbuf = hva_qbuf, |
|
.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, |
|
.vidioc_streamon = v4l2_m2m_ioctl_streamon, |
|
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff, |
|
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event, |
|
.vidioc_unsubscribe_event = v4l2_event_unsubscribe, |
|
}; |
|
|
|
/* |
|
* V4L2 control operations |
|
*/ |
|
|
|
static int hva_s_ctrl(struct v4l2_ctrl *ctrl) |
|
{ |
|
struct hva_ctx *ctx = container_of(ctrl->handler, struct hva_ctx, |
|
ctrl_handler); |
|
struct device *dev = ctx_to_dev(ctx); |
|
|
|
dev_dbg(dev, "%s S_CTRL: id = %d, val = %d\n", ctx->name, |
|
ctrl->id, ctrl->val); |
|
|
|
switch (ctrl->id) { |
|
case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: |
|
ctx->ctrls.bitrate_mode = ctrl->val; |
|
break; |
|
case V4L2_CID_MPEG_VIDEO_GOP_SIZE: |
|
ctx->ctrls.gop_size = ctrl->val; |
|
break; |
|
case V4L2_CID_MPEG_VIDEO_BITRATE: |
|
ctx->ctrls.bitrate = ctrl->val; |
|
break; |
|
case V4L2_CID_MPEG_VIDEO_ASPECT: |
|
ctx->ctrls.aspect = ctrl->val; |
|
break; |
|
case V4L2_CID_MPEG_VIDEO_H264_PROFILE: |
|
ctx->ctrls.profile = ctrl->val; |
|
snprintf(ctx->streaminfo.profile, |
|
sizeof(ctx->streaminfo.profile), |
|
"%s profile", |
|
v4l2_ctrl_get_menu(ctrl->id)[ctrl->val]); |
|
break; |
|
case V4L2_CID_MPEG_VIDEO_H264_LEVEL: |
|
ctx->ctrls.level = ctrl->val; |
|
snprintf(ctx->streaminfo.level, |
|
sizeof(ctx->streaminfo.level), |
|
"level %s", |
|
v4l2_ctrl_get_menu(ctrl->id)[ctrl->val]); |
|
break; |
|
case V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE: |
|
ctx->ctrls.entropy_mode = ctrl->val; |
|
break; |
|
case V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE: |
|
ctx->ctrls.cpb_size = ctrl->val; |
|
break; |
|
case V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM: |
|
ctx->ctrls.dct8x8 = ctrl->val; |
|
break; |
|
case V4L2_CID_MPEG_VIDEO_H264_MIN_QP: |
|
ctx->ctrls.qpmin = ctrl->val; |
|
break; |
|
case V4L2_CID_MPEG_VIDEO_H264_MAX_QP: |
|
ctx->ctrls.qpmax = ctrl->val; |
|
break; |
|
case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE: |
|
ctx->ctrls.vui_sar = ctrl->val; |
|
break; |
|
case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC: |
|
ctx->ctrls.vui_sar_idc = ctrl->val; |
|
break; |
|
case V4L2_CID_MPEG_VIDEO_H264_SEI_FRAME_PACKING: |
|
ctx->ctrls.sei_fp = ctrl->val; |
|
break; |
|
case V4L2_CID_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE: |
|
ctx->ctrls.sei_fp_type = ctrl->val; |
|
break; |
|
default: |
|
dev_dbg(dev, "%s S_CTRL: invalid control (id = %d)\n", |
|
ctx->name, ctrl->id); |
|
return -EINVAL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/* V4L2 control ops */ |
|
static const struct v4l2_ctrl_ops hva_ctrl_ops = { |
|
.s_ctrl = hva_s_ctrl, |
|
}; |
|
|
|
static int hva_ctrls_setup(struct hva_ctx *ctx) |
|
{ |
|
struct device *dev = ctx_to_dev(ctx); |
|
u64 mask; |
|
enum v4l2_mpeg_video_h264_sei_fp_arrangement_type sei_fp_type = |
|
V4L2_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE_TOP_BOTTOM; |
|
|
|
v4l2_ctrl_handler_init(&ctx->ctrl_handler, 15); |
|
|
|
v4l2_ctrl_new_std_menu(&ctx->ctrl_handler, &hva_ctrl_ops, |
|
V4L2_CID_MPEG_VIDEO_BITRATE_MODE, |
|
V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, |
|
0, |
|
V4L2_MPEG_VIDEO_BITRATE_MODE_CBR); |
|
|
|
v4l2_ctrl_new_std(&ctx->ctrl_handler, &hva_ctrl_ops, |
|
V4L2_CID_MPEG_VIDEO_GOP_SIZE, |
|
1, 60, 1, 16); |
|
|
|
v4l2_ctrl_new_std(&ctx->ctrl_handler, &hva_ctrl_ops, |
|
V4L2_CID_MPEG_VIDEO_BITRATE, |
|
1000, 60000000, 1000, 20000000); |
|
|
|
mask = ~(1 << V4L2_MPEG_VIDEO_ASPECT_1x1); |
|
v4l2_ctrl_new_std_menu(&ctx->ctrl_handler, &hva_ctrl_ops, |
|
V4L2_CID_MPEG_VIDEO_ASPECT, |
|
V4L2_MPEG_VIDEO_ASPECT_1x1, |
|
mask, |
|
V4L2_MPEG_VIDEO_ASPECT_1x1); |
|
|
|
mask = ~((1 << V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE) | |
|
(1 << V4L2_MPEG_VIDEO_H264_PROFILE_MAIN) | |
|
(1 << V4L2_MPEG_VIDEO_H264_PROFILE_HIGH) | |
|
(1 << V4L2_MPEG_VIDEO_H264_PROFILE_STEREO_HIGH)); |
|
v4l2_ctrl_new_std_menu(&ctx->ctrl_handler, &hva_ctrl_ops, |
|
V4L2_CID_MPEG_VIDEO_H264_PROFILE, |
|
V4L2_MPEG_VIDEO_H264_PROFILE_STEREO_HIGH, |
|
mask, |
|
V4L2_MPEG_VIDEO_H264_PROFILE_HIGH); |
|
|
|
v4l2_ctrl_new_std_menu(&ctx->ctrl_handler, &hva_ctrl_ops, |
|
V4L2_CID_MPEG_VIDEO_H264_LEVEL, |
|
V4L2_MPEG_VIDEO_H264_LEVEL_4_2, |
|
0, |
|
V4L2_MPEG_VIDEO_H264_LEVEL_4_0); |
|
|
|
v4l2_ctrl_new_std_menu(&ctx->ctrl_handler, &hva_ctrl_ops, |
|
V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE, |
|
V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CABAC, |
|
0, |
|
V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CAVLC); |
|
|
|
v4l2_ctrl_new_std(&ctx->ctrl_handler, &hva_ctrl_ops, |
|
V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE, |
|
1, 10000, 1, 3000); |
|
|
|
v4l2_ctrl_new_std(&ctx->ctrl_handler, &hva_ctrl_ops, |
|
V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM, |
|
0, 1, 1, 0); |
|
|
|
v4l2_ctrl_new_std(&ctx->ctrl_handler, &hva_ctrl_ops, |
|
V4L2_CID_MPEG_VIDEO_H264_MIN_QP, |
|
0, 51, 1, 5); |
|
|
|
v4l2_ctrl_new_std(&ctx->ctrl_handler, &hva_ctrl_ops, |
|
V4L2_CID_MPEG_VIDEO_H264_MAX_QP, |
|
0, 51, 1, 51); |
|
|
|
v4l2_ctrl_new_std(&ctx->ctrl_handler, &hva_ctrl_ops, |
|
V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE, |
|
0, 1, 1, 1); |
|
|
|
mask = ~(1 << V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_1x1); |
|
v4l2_ctrl_new_std_menu(&ctx->ctrl_handler, &hva_ctrl_ops, |
|
V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC, |
|
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_1x1, |
|
mask, |
|
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_1x1); |
|
|
|
v4l2_ctrl_new_std(&ctx->ctrl_handler, &hva_ctrl_ops, |
|
V4L2_CID_MPEG_VIDEO_H264_SEI_FRAME_PACKING, |
|
0, 1, 1, 0); |
|
|
|
mask = ~(1 << sei_fp_type); |
|
v4l2_ctrl_new_std_menu(&ctx->ctrl_handler, &hva_ctrl_ops, |
|
V4L2_CID_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE, |
|
sei_fp_type, |
|
mask, |
|
sei_fp_type); |
|
|
|
if (ctx->ctrl_handler.error) { |
|
int err = ctx->ctrl_handler.error; |
|
|
|
dev_dbg(dev, "%s controls setup failed (%d)\n", |
|
ctx->name, err); |
|
v4l2_ctrl_handler_free(&ctx->ctrl_handler); |
|
return err; |
|
} |
|
|
|
v4l2_ctrl_handler_setup(&ctx->ctrl_handler); |
|
|
|
/* set default time per frame */ |
|
ctx->ctrls.time_per_frame.numerator = HVA_DEFAULT_FRAME_NUM; |
|
ctx->ctrls.time_per_frame.denominator = HVA_DEFAULT_FRAME_DEN; |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* mem-to-mem operations |
|
*/ |
|
|
|
static void hva_run_work(struct work_struct *work) |
|
{ |
|
struct hva_ctx *ctx = container_of(work, struct hva_ctx, run_work); |
|
struct vb2_v4l2_buffer *src_buf, *dst_buf; |
|
const struct hva_enc *enc = ctx->enc; |
|
struct hva_frame *frame; |
|
struct hva_stream *stream; |
|
int ret; |
|
|
|
/* protect instance against reentrancy */ |
|
mutex_lock(&ctx->lock); |
|
|
|
#ifdef CONFIG_VIDEO_STI_HVA_DEBUGFS |
|
hva_dbg_perf_begin(ctx); |
|
#endif |
|
|
|
src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); |
|
dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); |
|
|
|
frame = to_hva_frame(src_buf); |
|
stream = to_hva_stream(dst_buf); |
|
frame->vbuf.sequence = ctx->frame_num++; |
|
|
|
ret = enc->encode(ctx, frame, stream); |
|
|
|
vb2_set_plane_payload(&dst_buf->vb2_buf, 0, stream->bytesused); |
|
if (ret) { |
|
v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR); |
|
v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR); |
|
} else { |
|
/* propagate frame timestamp */ |
|
dst_buf->vb2_buf.timestamp = src_buf->vb2_buf.timestamp; |
|
dst_buf->field = V4L2_FIELD_NONE; |
|
dst_buf->sequence = ctx->stream_num - 1; |
|
|
|
ctx->encoded_frames++; |
|
|
|
#ifdef CONFIG_VIDEO_STI_HVA_DEBUGFS |
|
hva_dbg_perf_end(ctx, stream); |
|
#endif |
|
|
|
v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE); |
|
v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE); |
|
} |
|
|
|
mutex_unlock(&ctx->lock); |
|
|
|
v4l2_m2m_job_finish(ctx->hva_dev->m2m_dev, ctx->fh.m2m_ctx); |
|
} |
|
|
|
static void hva_device_run(void *priv) |
|
{ |
|
struct hva_ctx *ctx = priv; |
|
struct hva_dev *hva = ctx_to_hdev(ctx); |
|
|
|
queue_work(hva->work_queue, &ctx->run_work); |
|
} |
|
|
|
static void hva_job_abort(void *priv) |
|
{ |
|
struct hva_ctx *ctx = priv; |
|
struct device *dev = ctx_to_dev(ctx); |
|
|
|
dev_dbg(dev, "%s aborting job\n", ctx->name); |
|
|
|
ctx->aborting = true; |
|
} |
|
|
|
static int hva_job_ready(void *priv) |
|
{ |
|
struct hva_ctx *ctx = priv; |
|
struct device *dev = ctx_to_dev(ctx); |
|
|
|
if (!v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx)) { |
|
dev_dbg(dev, "%s job not ready: no frame buffers\n", |
|
ctx->name); |
|
return 0; |
|
} |
|
|
|
if (!v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx)) { |
|
dev_dbg(dev, "%s job not ready: no stream buffers\n", |
|
ctx->name); |
|
return 0; |
|
} |
|
|
|
if (ctx->aborting) { |
|
dev_dbg(dev, "%s job not ready: aborting\n", ctx->name); |
|
return 0; |
|
} |
|
|
|
return 1; |
|
} |
|
|
|
/* mem-to-mem ops */ |
|
static const struct v4l2_m2m_ops hva_m2m_ops = { |
|
.device_run = hva_device_run, |
|
.job_abort = hva_job_abort, |
|
.job_ready = hva_job_ready, |
|
}; |
|
|
|
/* |
|
* VB2 queue operations |
|
*/ |
|
|
|
static int hva_queue_setup(struct vb2_queue *vq, |
|
unsigned int *num_buffers, unsigned int *num_planes, |
|
unsigned int sizes[], struct device *alloc_devs[]) |
|
{ |
|
struct hva_ctx *ctx = vb2_get_drv_priv(vq); |
|
struct device *dev = ctx_to_dev(ctx); |
|
unsigned int size; |
|
|
|
dev_dbg(dev, "%s %s queue setup: num_buffers %d\n", ctx->name, |
|
to_type_str(vq->type), *num_buffers); |
|
|
|
size = vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT ? |
|
ctx->frameinfo.size : ctx->max_stream_size; |
|
|
|
if (*num_planes) |
|
return sizes[0] < size ? -EINVAL : 0; |
|
|
|
/* only one plane supported */ |
|
*num_planes = 1; |
|
sizes[0] = size; |
|
|
|
return 0; |
|
} |
|
|
|
static int hva_buf_prepare(struct vb2_buffer *vb) |
|
{ |
|
struct hva_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
|
struct device *dev = ctx_to_dev(ctx); |
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
|
|
|
if (vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { |
|
struct hva_frame *frame = to_hva_frame(vbuf); |
|
|
|
if (vbuf->field == V4L2_FIELD_ANY) |
|
vbuf->field = V4L2_FIELD_NONE; |
|
if (vbuf->field != V4L2_FIELD_NONE) { |
|
dev_dbg(dev, |
|
"%s frame[%d] prepare: %d field not supported\n", |
|
ctx->name, vb->index, vbuf->field); |
|
return -EINVAL; |
|
} |
|
|
|
if (!frame->prepared) { |
|
/* get memory addresses */ |
|
frame->vaddr = vb2_plane_vaddr(&vbuf->vb2_buf, 0); |
|
frame->paddr = vb2_dma_contig_plane_dma_addr( |
|
&vbuf->vb2_buf, 0); |
|
frame->info = ctx->frameinfo; |
|
frame->prepared = true; |
|
|
|
dev_dbg(dev, |
|
"%s frame[%d] prepared; virt=%p, phy=%pad\n", |
|
ctx->name, vb->index, |
|
frame->vaddr, &frame->paddr); |
|
} |
|
} else { |
|
struct hva_stream *stream = to_hva_stream(vbuf); |
|
|
|
if (!stream->prepared) { |
|
/* get memory addresses */ |
|
stream->vaddr = vb2_plane_vaddr(&vbuf->vb2_buf, 0); |
|
stream->paddr = vb2_dma_contig_plane_dma_addr( |
|
&vbuf->vb2_buf, 0); |
|
stream->size = vb2_plane_size(&vbuf->vb2_buf, 0); |
|
stream->prepared = true; |
|
|
|
dev_dbg(dev, |
|
"%s stream[%d] prepared; virt=%p, phy=%pad\n", |
|
ctx->name, vb->index, |
|
stream->vaddr, &stream->paddr); |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static void hva_buf_queue(struct vb2_buffer *vb) |
|
{ |
|
struct hva_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
|
|
|
if (ctx->fh.m2m_ctx) |
|
v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); |
|
} |
|
|
|
static int hva_start_streaming(struct vb2_queue *vq, unsigned int count) |
|
{ |
|
struct hva_ctx *ctx = vb2_get_drv_priv(vq); |
|
struct hva_dev *hva = ctx_to_hdev(ctx); |
|
struct device *dev = ctx_to_dev(ctx); |
|
struct vb2_v4l2_buffer *vbuf; |
|
int ret; |
|
unsigned int i; |
|
bool found = false; |
|
|
|
dev_dbg(dev, "%s %s start streaming\n", ctx->name, |
|
to_type_str(vq->type)); |
|
|
|
/* open encoder when both start_streaming have been called */ |
|
if (V4L2_TYPE_IS_OUTPUT(vq->type)) { |
|
if (!vb2_start_streaming_called(&ctx->fh.m2m_ctx->cap_q_ctx.q)) |
|
return 0; |
|
} else { |
|
if (!vb2_start_streaming_called(&ctx->fh.m2m_ctx->out_q_ctx.q)) |
|
return 0; |
|
} |
|
|
|
/* store the instance context in the instances array */ |
|
for (i = 0; i < HVA_MAX_INSTANCES; i++) { |
|
if (!hva->instances[i]) { |
|
hva->instances[i] = ctx; |
|
/* save the context identifier in the context */ |
|
ctx->id = i; |
|
found = true; |
|
break; |
|
} |
|
} |
|
|
|
if (!found) { |
|
dev_err(dev, "%s maximum instances reached\n", ctx->name); |
|
ret = -ENOMEM; |
|
goto err; |
|
} |
|
|
|
hva->nb_of_instances++; |
|
|
|
if (!ctx->enc) { |
|
ret = hva_open_encoder(ctx, |
|
ctx->streaminfo.streamformat, |
|
ctx->frameinfo.pixelformat, |
|
&ctx->enc); |
|
if (ret < 0) |
|
goto err_ctx; |
|
} |
|
|
|
return 0; |
|
|
|
err_ctx: |
|
hva->instances[ctx->id] = NULL; |
|
hva->nb_of_instances--; |
|
err: |
|
if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { |
|
/* return of all pending buffers to vb2 (in queued state) */ |
|
while ((vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx))) |
|
v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_QUEUED); |
|
} else { |
|
/* return of all pending buffers to vb2 (in queued state) */ |
|
while ((vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx))) |
|
v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_QUEUED); |
|
} |
|
|
|
ctx->sys_errors++; |
|
|
|
return ret; |
|
} |
|
|
|
static void hva_stop_streaming(struct vb2_queue *vq) |
|
{ |
|
struct hva_ctx *ctx = vb2_get_drv_priv(vq); |
|
struct hva_dev *hva = ctx_to_hdev(ctx); |
|
struct device *dev = ctx_to_dev(ctx); |
|
const struct hva_enc *enc = ctx->enc; |
|
struct vb2_v4l2_buffer *vbuf; |
|
|
|
dev_dbg(dev, "%s %s stop streaming\n", ctx->name, |
|
to_type_str(vq->type)); |
|
|
|
if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { |
|
/* return of all pending buffers to vb2 (in error state) */ |
|
ctx->frame_num = 0; |
|
while ((vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx))) |
|
v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR); |
|
} else { |
|
/* return of all pending buffers to vb2 (in error state) */ |
|
ctx->stream_num = 0; |
|
while ((vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx))) |
|
v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR); |
|
} |
|
|
|
if ((V4L2_TYPE_IS_OUTPUT(vq->type) && |
|
vb2_is_streaming(&ctx->fh.m2m_ctx->cap_q_ctx.q)) || |
|
(V4L2_TYPE_IS_CAPTURE(vq->type) && |
|
vb2_is_streaming(&ctx->fh.m2m_ctx->out_q_ctx.q))) { |
|
dev_dbg(dev, "%s %s out=%d cap=%d\n", |
|
ctx->name, to_type_str(vq->type), |
|
vb2_is_streaming(&ctx->fh.m2m_ctx->out_q_ctx.q), |
|
vb2_is_streaming(&ctx->fh.m2m_ctx->cap_q_ctx.q)); |
|
return; |
|
} |
|
|
|
/* close encoder when both stop_streaming have been called */ |
|
if (enc) { |
|
dev_dbg(dev, "%s %s encoder closed\n", ctx->name, enc->name); |
|
enc->close(ctx); |
|
ctx->enc = NULL; |
|
|
|
/* clear instance context in instances array */ |
|
hva->instances[ctx->id] = NULL; |
|
hva->nb_of_instances--; |
|
} |
|
|
|
ctx->aborting = false; |
|
} |
|
|
|
/* VB2 queue ops */ |
|
static const struct vb2_ops hva_qops = { |
|
.queue_setup = hva_queue_setup, |
|
.buf_prepare = hva_buf_prepare, |
|
.buf_queue = hva_buf_queue, |
|
.start_streaming = hva_start_streaming, |
|
.stop_streaming = hva_stop_streaming, |
|
.wait_prepare = vb2_ops_wait_prepare, |
|
.wait_finish = vb2_ops_wait_finish, |
|
}; |
|
|
|
/* |
|
* V4L2 file operations |
|
*/ |
|
|
|
static int queue_init(struct hva_ctx *ctx, struct vb2_queue *vq) |
|
{ |
|
vq->io_modes = VB2_MMAP | VB2_DMABUF; |
|
vq->drv_priv = ctx; |
|
vq->ops = &hva_qops; |
|
vq->mem_ops = &vb2_dma_contig_memops; |
|
vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; |
|
vq->lock = &ctx->hva_dev->lock; |
|
|
|
return vb2_queue_init(vq); |
|
} |
|
|
|
static int hva_queue_init(void *priv, struct vb2_queue *src_vq, |
|
struct vb2_queue *dst_vq) |
|
{ |
|
struct hva_ctx *ctx = priv; |
|
int ret; |
|
|
|
src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; |
|
src_vq->buf_struct_size = sizeof(struct hva_frame); |
|
src_vq->min_buffers_needed = MIN_FRAMES; |
|
src_vq->dev = ctx->hva_dev->dev; |
|
|
|
ret = queue_init(ctx, src_vq); |
|
if (ret) |
|
return ret; |
|
|
|
dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
|
dst_vq->buf_struct_size = sizeof(struct hva_stream); |
|
dst_vq->min_buffers_needed = MIN_STREAMS; |
|
dst_vq->dev = ctx->hva_dev->dev; |
|
|
|
return queue_init(ctx, dst_vq); |
|
} |
|
|
|
static int hva_open(struct file *file) |
|
{ |
|
struct hva_dev *hva = video_drvdata(file); |
|
struct device *dev = hva_to_dev(hva); |
|
struct hva_ctx *ctx; |
|
int ret; |
|
|
|
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); |
|
if (!ctx) { |
|
ret = -ENOMEM; |
|
goto out; |
|
} |
|
ctx->hva_dev = hva; |
|
|
|
INIT_WORK(&ctx->run_work, hva_run_work); |
|
v4l2_fh_init(&ctx->fh, video_devdata(file)); |
|
file->private_data = &ctx->fh; |
|
v4l2_fh_add(&ctx->fh); |
|
|
|
ret = hva_ctrls_setup(ctx); |
|
if (ret) { |
|
dev_err(dev, "%s [x:x] failed to setup controls\n", |
|
HVA_PREFIX); |
|
ctx->sys_errors++; |
|
goto err_fh; |
|
} |
|
ctx->fh.ctrl_handler = &ctx->ctrl_handler; |
|
|
|
mutex_init(&ctx->lock); |
|
|
|
ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(hva->m2m_dev, ctx, |
|
&hva_queue_init); |
|
if (IS_ERR(ctx->fh.m2m_ctx)) { |
|
ret = PTR_ERR(ctx->fh.m2m_ctx); |
|
dev_err(dev, "%s failed to initialize m2m context (%d)\n", |
|
HVA_PREFIX, ret); |
|
ctx->sys_errors++; |
|
goto err_ctrls; |
|
} |
|
|
|
/* set the instance name */ |
|
mutex_lock(&hva->lock); |
|
hva->instance_id++; |
|
snprintf(ctx->name, sizeof(ctx->name), "[%3d:----]", |
|
hva->instance_id); |
|
mutex_unlock(&hva->lock); |
|
|
|
/* default parameters for frame and stream */ |
|
set_default_params(ctx); |
|
|
|
#ifdef CONFIG_VIDEO_STI_HVA_DEBUGFS |
|
hva_dbg_ctx_create(ctx); |
|
#endif |
|
|
|
dev_info(dev, "%s encoder instance created\n", ctx->name); |
|
|
|
return 0; |
|
|
|
err_ctrls: |
|
v4l2_ctrl_handler_free(&ctx->ctrl_handler); |
|
err_fh: |
|
v4l2_fh_del(&ctx->fh); |
|
v4l2_fh_exit(&ctx->fh); |
|
kfree(ctx); |
|
out: |
|
return ret; |
|
} |
|
|
|
static int hva_release(struct file *file) |
|
{ |
|
struct hva_ctx *ctx = fh_to_ctx(file->private_data); |
|
struct hva_dev *hva = ctx_to_hdev(ctx); |
|
struct device *dev = ctx_to_dev(ctx); |
|
const struct hva_enc *enc = ctx->enc; |
|
|
|
if (enc) { |
|
dev_dbg(dev, "%s %s encoder closed\n", ctx->name, enc->name); |
|
enc->close(ctx); |
|
ctx->enc = NULL; |
|
|
|
/* clear instance context in instances array */ |
|
hva->instances[ctx->id] = NULL; |
|
hva->nb_of_instances--; |
|
} |
|
|
|
/* trace a summary of instance before closing (debug purpose) */ |
|
hva_dbg_summary(ctx); |
|
|
|
v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); |
|
|
|
v4l2_ctrl_handler_free(&ctx->ctrl_handler); |
|
|
|
v4l2_fh_del(&ctx->fh); |
|
v4l2_fh_exit(&ctx->fh); |
|
|
|
#ifdef CONFIG_VIDEO_STI_HVA_DEBUGFS |
|
hva_dbg_ctx_remove(ctx); |
|
#endif |
|
|
|
dev_info(dev, "%s encoder instance released\n", ctx->name); |
|
|
|
kfree(ctx); |
|
|
|
return 0; |
|
} |
|
|
|
/* V4L2 file ops */ |
|
static const struct v4l2_file_operations hva_fops = { |
|
.owner = THIS_MODULE, |
|
.open = hva_open, |
|
.release = hva_release, |
|
.unlocked_ioctl = video_ioctl2, |
|
.mmap = v4l2_m2m_fop_mmap, |
|
.poll = v4l2_m2m_fop_poll, |
|
}; |
|
|
|
/* |
|
* Platform device operations |
|
*/ |
|
|
|
static int hva_register_device(struct hva_dev *hva) |
|
{ |
|
int ret; |
|
struct video_device *vdev; |
|
struct device *dev; |
|
|
|
if (!hva) |
|
return -ENODEV; |
|
dev = hva_to_dev(hva); |
|
|
|
hva->m2m_dev = v4l2_m2m_init(&hva_m2m_ops); |
|
if (IS_ERR(hva->m2m_dev)) { |
|
dev_err(dev, "%s failed to initialize v4l2-m2m device\n", |
|
HVA_PREFIX); |
|
ret = PTR_ERR(hva->m2m_dev); |
|
goto err; |
|
} |
|
|
|
vdev = video_device_alloc(); |
|
if (!vdev) { |
|
dev_err(dev, "%s failed to allocate video device\n", |
|
HVA_PREFIX); |
|
ret = -ENOMEM; |
|
goto err_m2m_release; |
|
} |
|
|
|
vdev->fops = &hva_fops; |
|
vdev->ioctl_ops = &hva_ioctl_ops; |
|
vdev->release = video_device_release; |
|
vdev->lock = &hva->lock; |
|
vdev->vfl_dir = VFL_DIR_M2M; |
|
vdev->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M; |
|
vdev->v4l2_dev = &hva->v4l2_dev; |
|
snprintf(vdev->name, sizeof(vdev->name), "%s%lx", HVA_NAME, |
|
hva->ip_version); |
|
|
|
ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1); |
|
if (ret) { |
|
dev_err(dev, "%s failed to register video device\n", |
|
HVA_PREFIX); |
|
goto err_vdev_release; |
|
} |
|
|
|
hva->vdev = vdev; |
|
video_set_drvdata(vdev, hva); |
|
return 0; |
|
|
|
err_vdev_release: |
|
video_device_release(vdev); |
|
err_m2m_release: |
|
v4l2_m2m_release(hva->m2m_dev); |
|
err: |
|
return ret; |
|
} |
|
|
|
static void hva_unregister_device(struct hva_dev *hva) |
|
{ |
|
if (!hva) |
|
return; |
|
|
|
if (hva->m2m_dev) |
|
v4l2_m2m_release(hva->m2m_dev); |
|
|
|
video_unregister_device(hva->vdev); |
|
} |
|
|
|
static int hva_probe(struct platform_device *pdev) |
|
{ |
|
struct hva_dev *hva; |
|
struct device *dev = &pdev->dev; |
|
int ret; |
|
|
|
hva = devm_kzalloc(dev, sizeof(*hva), GFP_KERNEL); |
|
if (!hva) { |
|
ret = -ENOMEM; |
|
goto err; |
|
} |
|
|
|
ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32)); |
|
if (ret) |
|
return ret; |
|
|
|
hva->dev = dev; |
|
hva->pdev = pdev; |
|
platform_set_drvdata(pdev, hva); |
|
|
|
mutex_init(&hva->lock); |
|
|
|
/* probe hardware */ |
|
ret = hva_hw_probe(pdev, hva); |
|
if (ret) |
|
goto err; |
|
|
|
/* register all available encoders */ |
|
register_encoders(hva); |
|
|
|
/* register all supported formats */ |
|
register_formats(hva); |
|
|
|
/* register on V4L2 */ |
|
ret = v4l2_device_register(dev, &hva->v4l2_dev); |
|
if (ret) { |
|
dev_err(dev, "%s %s failed to register V4L2 device\n", |
|
HVA_PREFIX, HVA_NAME); |
|
goto err_hw; |
|
} |
|
|
|
#ifdef CONFIG_VIDEO_STI_HVA_DEBUGFS |
|
hva_debugfs_create(hva); |
|
#endif |
|
|
|
hva->work_queue = create_workqueue(HVA_NAME); |
|
if (!hva->work_queue) { |
|
dev_err(dev, "%s %s failed to allocate work queue\n", |
|
HVA_PREFIX, HVA_NAME); |
|
ret = -ENOMEM; |
|
goto err_v4l2; |
|
} |
|
|
|
/* register device */ |
|
ret = hva_register_device(hva); |
|
if (ret) |
|
goto err_work_queue; |
|
|
|
dev_info(dev, "%s %s registered as /dev/video%d\n", HVA_PREFIX, |
|
HVA_NAME, hva->vdev->num); |
|
|
|
return 0; |
|
|
|
err_work_queue: |
|
destroy_workqueue(hva->work_queue); |
|
err_v4l2: |
|
#ifdef CONFIG_VIDEO_STI_HVA_DEBUGFS |
|
hva_debugfs_remove(hva); |
|
#endif |
|
v4l2_device_unregister(&hva->v4l2_dev); |
|
err_hw: |
|
hva_hw_remove(hva); |
|
err: |
|
return ret; |
|
} |
|
|
|
static int hva_remove(struct platform_device *pdev) |
|
{ |
|
struct hva_dev *hva = platform_get_drvdata(pdev); |
|
struct device *dev = hva_to_dev(hva); |
|
|
|
hva_unregister_device(hva); |
|
|
|
destroy_workqueue(hva->work_queue); |
|
|
|
hva_hw_remove(hva); |
|
|
|
#ifdef CONFIG_VIDEO_STI_HVA_DEBUGFS |
|
hva_debugfs_remove(hva); |
|
#endif |
|
|
|
v4l2_device_unregister(&hva->v4l2_dev); |
|
|
|
dev_info(dev, "%s %s removed\n", HVA_PREFIX, pdev->name); |
|
|
|
return 0; |
|
} |
|
|
|
/* PM ops */ |
|
static const struct dev_pm_ops hva_pm_ops = { |
|
.runtime_suspend = hva_hw_runtime_suspend, |
|
.runtime_resume = hva_hw_runtime_resume, |
|
}; |
|
|
|
static const struct of_device_id hva_match_types[] = { |
|
{ |
|
.compatible = "st,st-hva", |
|
}, |
|
{ /* end node */ } |
|
}; |
|
|
|
MODULE_DEVICE_TABLE(of, hva_match_types); |
|
|
|
static struct platform_driver hva_driver = { |
|
.probe = hva_probe, |
|
.remove = hva_remove, |
|
.driver = { |
|
.name = HVA_NAME, |
|
.of_match_table = hva_match_types, |
|
.pm = &hva_pm_ops, |
|
}, |
|
}; |
|
|
|
module_platform_driver(hva_driver); |
|
|
|
MODULE_LICENSE("GPL"); |
|
MODULE_AUTHOR("Yannick Fertre <[email protected]>"); |
|
MODULE_DESCRIPTION("STMicroelectronics HVA video encoder V4L2 driver");
|
|
|