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1068 lines
26 KiB
1068 lines
26 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Copyright (C) 2020 BayLibre, SAS |
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* Author: Neil Armstrong <[email protected]> |
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*/ |
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|
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#include <linux/clk.h> |
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#include <linux/delay.h> |
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#include <linux/bitfield.h> |
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#include <linux/interrupt.h> |
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#include <linux/module.h> |
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#include <linux/of.h> |
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#include <linux/reset.h> |
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#include <linux/sched.h> |
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#include <linux/slab.h> |
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#include <linux/timer.h> |
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#include <linux/regmap.h> |
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#include <linux/platform_device.h> |
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#include <media/v4l2-device.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/v4l2-mem2mem.h> |
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#include <media/v4l2-ctrls.h> |
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#include <media/videobuf2-v4l2.h> |
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#include <media/videobuf2-dma-contig.h> |
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#include "ge2d-regs.h" |
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|
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#define GE2D_NAME "meson-ge2d" |
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|
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#define DEFAULT_WIDTH 128 |
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#define DEFAULT_HEIGHT 128 |
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#define DEFAULT_STRIDE 512 |
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#define MAX_WIDTH 8191 |
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#define MAX_HEIGHT 8191 |
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/* |
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* Missing features: |
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* - Scaling |
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* - Simple 1/2 vertical scaling |
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* - YUV input support |
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* - Source global alpha |
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* - Colorspace conversion |
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*/ |
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struct ge2d_fmt { |
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u32 fourcc; |
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bool alpha; |
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bool le; |
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unsigned int depth; |
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unsigned int hw_fmt; |
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unsigned int hw_map; |
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}; |
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struct ge2d_frame { |
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struct vb2_v4l2_buffer *buf; |
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/* Image Format */ |
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struct v4l2_pix_format pix_fmt; |
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/* Crop */ |
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struct v4l2_rect crop; |
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/* Image format */ |
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const struct ge2d_fmt *fmt; |
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}; |
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struct ge2d_ctx { |
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struct v4l2_fh fh; |
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struct meson_ge2d *ge2d; |
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struct ge2d_frame in; |
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struct ge2d_frame out; |
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struct v4l2_ctrl_handler ctrl_handler; |
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unsigned long sequence_out, sequence_cap; |
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/* Control values */ |
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u32 hflip; |
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u32 vflip; |
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u32 xy_swap; |
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}; |
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struct meson_ge2d { |
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struct v4l2_device v4l2_dev; |
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struct v4l2_m2m_dev *m2m_dev; |
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struct video_device *vfd; |
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struct device *dev; |
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struct regmap *map; |
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struct clk *clk; |
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/* vb2 queue lock */ |
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struct mutex mutex; |
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struct ge2d_ctx *curr; |
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}; |
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#define FMT(_fourcc, _alpha, _depth, _map) \ |
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{ \ |
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.fourcc = _fourcc, \ |
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.alpha = (_alpha), \ |
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.depth = (_depth), \ |
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.hw_fmt = GE2D_FORMAT_ ## _depth ## BIT, \ |
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.hw_map = GE2D_COLOR_MAP_ ## _map, \ |
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} |
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/* TOFIX Handle the YUV input formats */ |
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static const struct ge2d_fmt formats[] = { |
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/* FOURCC Alpha HW FMT HW MAP */ |
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FMT(V4L2_PIX_FMT_XRGB32, false, 32, BGRA8888), |
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FMT(V4L2_PIX_FMT_RGB32, true, 32, BGRA8888), |
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FMT(V4L2_PIX_FMT_ARGB32, true, 32, BGRA8888), |
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FMT(V4L2_PIX_FMT_RGBX32, false, 32, ABGR8888), |
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FMT(V4L2_PIX_FMT_RGBA32, true, 32, ABGR8888), |
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FMT(V4L2_PIX_FMT_BGRX32, false, 32, RGBA8888), |
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FMT(V4L2_PIX_FMT_BGRA32, true, 32, RGBA8888), |
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FMT(V4L2_PIX_FMT_BGR32, true, 32, ARGB8888), |
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FMT(V4L2_PIX_FMT_ABGR32, true, 32, ARGB8888), |
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FMT(V4L2_PIX_FMT_XBGR32, false, 32, ARGB8888), |
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FMT(V4L2_PIX_FMT_RGB24, false, 24, BGR888), |
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FMT(V4L2_PIX_FMT_BGR24, false, 24, RGB888), |
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FMT(V4L2_PIX_FMT_XRGB555X, false, 16, ARGB1555), |
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FMT(V4L2_PIX_FMT_ARGB555X, true, 16, ARGB1555), |
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FMT(V4L2_PIX_FMT_RGB565, false, 16, RGB565), |
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FMT(V4L2_PIX_FMT_RGBX444, false, 16, RGBA4444), |
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FMT(V4L2_PIX_FMT_RGBA444, true, 16, RGBA4444), |
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FMT(V4L2_PIX_FMT_XRGB444, false, 16, ARGB4444), |
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FMT(V4L2_PIX_FMT_ARGB444, true, 16, ARGB4444), |
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}; |
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#define NUM_FORMATS ARRAY_SIZE(formats) |
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static const struct ge2d_fmt *find_fmt(struct v4l2_format *f) |
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{ |
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unsigned int i; |
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for (i = 0; i < NUM_FORMATS; i++) { |
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if (formats[i].fourcc == f->fmt.pix.pixelformat) |
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return &formats[i]; |
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} |
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/* |
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* TRY_FMT/S_FMT should never return an error when the requested format |
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* is not supported. Drivers should always return a valid format, |
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* preferably a format that is as widely supported by applications as |
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* possible. |
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*/ |
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return &formats[0]; |
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} |
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static struct ge2d_frame *get_frame(struct ge2d_ctx *ctx, |
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enum v4l2_buf_type type) |
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{ |
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switch (type) { |
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case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
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return &ctx->in; |
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case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
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return &ctx->out; |
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default: |
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/* This should never happen, warn and return OUTPUT frame */ |
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dev_warn(ctx->ge2d->dev, "%s: invalid buffer type\n", __func__); |
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return &ctx->in; |
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} |
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} |
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static void ge2d_hw_start(struct meson_ge2d *ge2d) |
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{ |
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struct ge2d_ctx *ctx = ge2d->curr; |
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u32 reg; |
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/* Reset */ |
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regmap_update_bits(ge2d->map, GE2D_GEN_CTRL1, |
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GE2D_SOFT_RST, GE2D_SOFT_RST); |
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regmap_update_bits(ge2d->map, GE2D_GEN_CTRL1, |
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GE2D_SOFT_RST, 0); |
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usleep_range(100, 200); |
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/* Implement CANVAS for non-AXG */ |
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regmap_write(ge2d->map, GE2D_SRC1_BADDR_CTRL, |
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(vb2_dma_contig_plane_dma_addr(&ctx->in.buf->vb2_buf, 0) + 7) >> 3); |
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regmap_write(ge2d->map, GE2D_SRC1_STRIDE_CTRL, |
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(ctx->in.pix_fmt.bytesperline + 7) >> 3); |
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regmap_write(ge2d->map, GE2D_SRC2_BADDR_CTRL, |
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(vb2_dma_contig_plane_dma_addr(&ctx->out.buf->vb2_buf, 0) + 7) >> 3); |
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regmap_write(ge2d->map, GE2D_SRC2_STRIDE_CTRL, |
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(ctx->out.pix_fmt.bytesperline + 7) >> 3); |
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regmap_write(ge2d->map, GE2D_DST1_BADDR_CTRL, |
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(vb2_dma_contig_plane_dma_addr(&ctx->out.buf->vb2_buf, 0) + 7) >> 3); |
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regmap_write(ge2d->map, GE2D_DST1_STRIDE_CTRL, |
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(ctx->out.pix_fmt.bytesperline + 7) >> 3); |
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regmap_write(ge2d->map, GE2D_GEN_CTRL0, 0); |
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regmap_write(ge2d->map, GE2D_GEN_CTRL1, |
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FIELD_PREP(GE2D_INTERRUPT_CTRL, 2) | |
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FIELD_PREP(GE2D_SRC2_BURST_SIZE_CTRL, 3) | |
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FIELD_PREP(GE2D_SRC1_BURST_SIZE_CTRL, 0x3f)); |
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regmap_write(ge2d->map, GE2D_GEN_CTRL2, |
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GE2D_SRC1_LITTLE_ENDIAN | |
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GE2D_SRC2_LITTLE_ENDIAN | |
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GE2D_DST_LITTLE_ENDIAN | |
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FIELD_PREP(GE2D_DST1_COLOR_MAP, ctx->out.fmt->hw_map) | |
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FIELD_PREP(GE2D_DST1_FORMAT, ctx->out.fmt->hw_fmt) | |
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FIELD_PREP(GE2D_SRC2_COLOR_MAP, ctx->out.fmt->hw_map) | |
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FIELD_PREP(GE2D_SRC2_FORMAT, ctx->out.fmt->hw_fmt) | |
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FIELD_PREP(GE2D_SRC1_COLOR_MAP, ctx->in.fmt->hw_map) | |
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FIELD_PREP(GE2D_SRC1_FORMAT, ctx->in.fmt->hw_fmt)); |
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regmap_write(ge2d->map, GE2D_GEN_CTRL3, |
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GE2D_DST1_ENABLE); |
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regmap_write(ge2d->map, GE2D_SRC1_CLIPY_START_END, |
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FIELD_PREP(GE2D_START, ctx->in.crop.top) | |
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FIELD_PREP(GE2D_END, ctx->in.crop.top + ctx->in.crop.height)); |
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regmap_write(ge2d->map, GE2D_SRC1_CLIPX_START_END, |
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FIELD_PREP(GE2D_START, ctx->in.crop.left) | |
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FIELD_PREP(GE2D_END, ctx->in.crop.left + ctx->in.crop.width)); |
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regmap_write(ge2d->map, GE2D_SRC2_CLIPY_START_END, |
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FIELD_PREP(GE2D_START, ctx->out.crop.top) | |
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FIELD_PREP(GE2D_END, ctx->out.crop.top + ctx->out.crop.height)); |
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regmap_write(ge2d->map, GE2D_SRC2_CLIPX_START_END, |
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FIELD_PREP(GE2D_START, ctx->out.crop.left) | |
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FIELD_PREP(GE2D_END, ctx->out.crop.left + ctx->out.crop.width)); |
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regmap_write(ge2d->map, GE2D_DST_CLIPY_START_END, |
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FIELD_PREP(GE2D_START, ctx->out.crop.top) | |
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FIELD_PREP(GE2D_END, ctx->out.crop.top + ctx->out.crop.height)); |
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regmap_write(ge2d->map, GE2D_DST_CLIPX_START_END, |
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FIELD_PREP(GE2D_START, ctx->out.crop.left) | |
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FIELD_PREP(GE2D_END, ctx->out.crop.left + ctx->out.crop.width)); |
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regmap_write(ge2d->map, GE2D_SRC1_Y_START_END, |
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FIELD_PREP(GE2D_END, ctx->in.pix_fmt.height)); |
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regmap_write(ge2d->map, GE2D_SRC1_X_START_END, |
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FIELD_PREP(GE2D_END, ctx->in.pix_fmt.width)); |
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regmap_write(ge2d->map, GE2D_SRC2_Y_START_END, |
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FIELD_PREP(GE2D_END, ctx->out.pix_fmt.height)); |
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regmap_write(ge2d->map, GE2D_SRC2_X_START_END, |
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FIELD_PREP(GE2D_END, ctx->out.pix_fmt.width)); |
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regmap_write(ge2d->map, GE2D_DST_Y_START_END, |
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FIELD_PREP(GE2D_END, ctx->out.pix_fmt.height)); |
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regmap_write(ge2d->map, GE2D_DST_X_START_END, |
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FIELD_PREP(GE2D_END, ctx->out.pix_fmt.width)); |
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/* Color, no blend, use source color */ |
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reg = GE2D_ALU_DO_COLOR_OPERATION_LOGIC(LOGIC_OPERATION_COPY, |
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COLOR_FACTOR_SRC_COLOR); |
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if (ctx->in.fmt->alpha && ctx->out.fmt->alpha) |
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/* Take source alpha */ |
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reg |= GE2D_ALU_DO_ALPHA_OPERATION_LOGIC(LOGIC_OPERATION_COPY, |
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COLOR_FACTOR_SRC_ALPHA); |
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else if (!ctx->out.fmt->alpha) |
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/* Set alpha to 0 */ |
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reg |= GE2D_ALU_DO_ALPHA_OPERATION_LOGIC(LOGIC_OPERATION_SET, |
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COLOR_FACTOR_ZERO); |
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else |
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/* Keep original alpha */ |
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reg |= GE2D_ALU_DO_ALPHA_OPERATION_LOGIC(LOGIC_OPERATION_COPY, |
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COLOR_FACTOR_DST_ALPHA); |
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regmap_write(ge2d->map, GE2D_ALU_OP_CTRL, reg); |
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/* Start */ |
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regmap_write(ge2d->map, GE2D_CMD_CTRL, |
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(ctx->xy_swap ? GE2D_DST_XY_SWAP : 0) | |
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(ctx->hflip ? GE2D_SRC1_Y_REV : 0) | |
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(ctx->vflip ? GE2D_SRC1_X_REV : 0) | |
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GE2D_CBUS_CMD_WR); |
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} |
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static void device_run(void *priv) |
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{ |
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struct ge2d_ctx *ctx = priv; |
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struct meson_ge2d *ge2d = ctx->ge2d; |
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ge2d->curr = ctx; |
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ctx->in.buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); |
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ctx->out.buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); |
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ge2d_hw_start(ge2d); |
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} |
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static irqreturn_t ge2d_isr(int irq, void *priv) |
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{ |
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struct meson_ge2d *ge2d = priv; |
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u32 intr; |
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regmap_read(ge2d->map, GE2D_STATUS0, &intr); |
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if (!(intr & GE2D_GE2D_BUSY)) { |
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struct vb2_v4l2_buffer *src, *dst; |
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struct ge2d_ctx *ctx = ge2d->curr; |
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ge2d->curr = NULL; |
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src = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); |
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dst = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); |
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src->sequence = ctx->sequence_out++; |
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dst->sequence = ctx->sequence_cap++; |
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dst->timecode = src->timecode; |
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dst->vb2_buf.timestamp = src->vb2_buf.timestamp; |
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dst->flags = src->flags; |
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v4l2_m2m_buf_done(src, VB2_BUF_STATE_DONE); |
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v4l2_m2m_buf_done(dst, VB2_BUF_STATE_DONE); |
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v4l2_m2m_job_finish(ge2d->m2m_dev, ctx->fh.m2m_ctx); |
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} |
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return IRQ_HANDLED; |
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} |
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static const struct v4l2_m2m_ops ge2d_m2m_ops = { |
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.device_run = device_run, |
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}; |
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static int ge2d_queue_setup(struct vb2_queue *vq, |
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unsigned int *nbuffers, unsigned int *nplanes, |
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unsigned int sizes[], struct device *alloc_devs[]) |
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{ |
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struct ge2d_ctx *ctx = vb2_get_drv_priv(vq); |
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struct ge2d_frame *f = get_frame(ctx, vq->type); |
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if (*nplanes) |
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return sizes[0] < f->pix_fmt.sizeimage ? -EINVAL : 0; |
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sizes[0] = f->pix_fmt.sizeimage; |
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*nplanes = 1; |
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return 0; |
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} |
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static int ge2d_buf_prepare(struct vb2_buffer *vb) |
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{ |
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struct ge2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
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struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
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struct ge2d_frame *f = get_frame(ctx, vb->vb2_queue->type); |
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vbuf->field = V4L2_FIELD_NONE; |
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vb2_set_plane_payload(vb, 0, f->pix_fmt.sizeimage); |
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return 0; |
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} |
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static void ge2d_buf_queue(struct vb2_buffer *vb) |
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{ |
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struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
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struct ge2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
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v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); |
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} |
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static int ge2d_start_streaming(struct vb2_queue *vq, unsigned int count) |
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{ |
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struct ge2d_ctx *ctx = vb2_get_drv_priv(vq); |
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if (V4L2_TYPE_IS_OUTPUT(vq->type)) |
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ctx->sequence_out = 0; |
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else |
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ctx->sequence_cap = 0; |
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return 0; |
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} |
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static void ge2d_stop_streaming(struct vb2_queue *vq) |
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{ |
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struct ge2d_ctx *ctx = vb2_get_drv_priv(vq); |
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struct vb2_v4l2_buffer *vbuf; |
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for (;;) { |
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if (V4L2_TYPE_IS_OUTPUT(vq->type)) |
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vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); |
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else |
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vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); |
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if (!vbuf) |
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break; |
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v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR); |
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} |
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} |
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static const struct vb2_ops ge2d_qops = { |
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.queue_setup = ge2d_queue_setup, |
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.buf_prepare = ge2d_buf_prepare, |
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.buf_queue = ge2d_buf_queue, |
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.start_streaming = ge2d_start_streaming, |
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.stop_streaming = ge2d_stop_streaming, |
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.wait_prepare = vb2_ops_wait_prepare, |
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.wait_finish = vb2_ops_wait_finish, |
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}; |
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static int |
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queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq) |
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{ |
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struct ge2d_ctx *ctx = priv; |
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int ret; |
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src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; |
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src_vq->io_modes = VB2_MMAP | VB2_DMABUF; |
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src_vq->drv_priv = ctx; |
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src_vq->ops = &ge2d_qops; |
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src_vq->mem_ops = &vb2_dma_contig_memops; |
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src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); |
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src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; |
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src_vq->lock = &ctx->ge2d->mutex; |
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src_vq->dev = ctx->ge2d->v4l2_dev.dev; |
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ret = vb2_queue_init(src_vq); |
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if (ret) |
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return ret; |
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dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
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dst_vq->io_modes = VB2_MMAP | VB2_DMABUF; |
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dst_vq->drv_priv = ctx; |
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dst_vq->ops = &ge2d_qops; |
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dst_vq->mem_ops = &vb2_dma_contig_memops; |
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dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); |
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dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; |
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dst_vq->lock = &ctx->ge2d->mutex; |
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dst_vq->dev = ctx->ge2d->v4l2_dev.dev; |
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|
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return vb2_queue_init(dst_vq); |
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} |
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|
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static int |
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vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap) |
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{ |
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strscpy(cap->driver, GE2D_NAME, sizeof(cap->driver)); |
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strscpy(cap->card, GE2D_NAME, sizeof(cap->card)); |
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strscpy(cap->bus_info, "platform:" GE2D_NAME, sizeof(cap->bus_info)); |
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return 0; |
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} |
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static int vidioc_enum_fmt(struct file *file, void *priv, struct v4l2_fmtdesc *f) |
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{ |
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const struct ge2d_fmt *fmt; |
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|
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if (f->index >= NUM_FORMATS) |
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return -EINVAL; |
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|
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fmt = &formats[f->index]; |
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f->pixelformat = fmt->fourcc; |
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|
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return 0; |
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} |
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|
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static int vidioc_g_selection(struct file *file, void *priv, |
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struct v4l2_selection *s) |
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{ |
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struct ge2d_ctx *ctx = priv; |
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struct ge2d_frame *f; |
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bool use_frame = false; |
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|
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if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && |
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s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
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return -EINVAL; |
|
|
|
f = get_frame(ctx, s->type); |
|
|
|
switch (s->target) { |
|
case V4L2_SEL_TGT_COMPOSE_DEFAULT: |
|
case V4L2_SEL_TGT_COMPOSE_BOUNDS: |
|
if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
|
return -EINVAL; |
|
break; |
|
case V4L2_SEL_TGT_CROP_DEFAULT: |
|
case V4L2_SEL_TGT_CROP_BOUNDS: |
|
if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) |
|
return -EINVAL; |
|
break; |
|
case V4L2_SEL_TGT_COMPOSE: |
|
if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
|
return -EINVAL; |
|
use_frame = true; |
|
break; |
|
case V4L2_SEL_TGT_CROP: |
|
if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) |
|
return -EINVAL; |
|
use_frame = true; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
if (use_frame) { |
|
s->r = f->crop; |
|
} else { |
|
s->r.left = 0; |
|
s->r.top = 0; |
|
s->r.width = f->pix_fmt.width; |
|
s->r.height = f->pix_fmt.height; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int vidioc_s_selection(struct file *file, void *priv, |
|
struct v4l2_selection *s) |
|
{ |
|
struct ge2d_ctx *ctx = priv; |
|
struct meson_ge2d *ge2d = ctx->ge2d; |
|
struct ge2d_frame *f; |
|
int ret = 0; |
|
|
|
if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && |
|
s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
|
return -EINVAL; |
|
|
|
f = get_frame(ctx, s->type); |
|
|
|
switch (s->target) { |
|
case V4L2_SEL_TGT_COMPOSE: |
|
/* |
|
* COMPOSE target is only valid for capture buffer type, return |
|
* error for output buffer type |
|
*/ |
|
if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
|
return -EINVAL; |
|
break; |
|
case V4L2_SEL_TGT_CROP: |
|
/* |
|
* CROP target is only valid for output buffer type, return |
|
* error for capture buffer type |
|
*/ |
|
if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) |
|
return -EINVAL; |
|
break; |
|
/* |
|
* bound and default crop/compose targets are invalid targets to |
|
* try/set |
|
*/ |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
if (s->r.top < 0 || s->r.left < 0) { |
|
v4l2_err(&ge2d->v4l2_dev, |
|
"doesn't support negative values for top & left.\n"); |
|
return -EINVAL; |
|
} |
|
|
|
if (s->r.left + s->r.width > f->pix_fmt.width || |
|
s->r.top + s->r.height > f->pix_fmt.height) { |
|
v4l2_err(&ge2d->v4l2_dev, "unsupported rectangle value.\n"); |
|
return -EINVAL; |
|
} |
|
|
|
f->crop = s->r; |
|
|
|
return ret; |
|
} |
|
|
|
static void vidioc_setup_cap_fmt(struct ge2d_ctx *ctx, struct v4l2_pix_format *f) |
|
{ |
|
struct ge2d_frame *frm_out = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); |
|
|
|
*f = frm_out->pix_fmt; |
|
|
|
if (ctx->xy_swap) { |
|
f->width = frm_out->pix_fmt.height; |
|
f->height = frm_out->pix_fmt.width; |
|
} |
|
} |
|
|
|
static int vidioc_try_fmt_cap(struct file *file, void *priv, struct v4l2_format *f) |
|
{ |
|
const struct ge2d_fmt *fmt = find_fmt(f); |
|
struct ge2d_ctx *ctx = priv; |
|
struct v4l2_pix_format fmt_cap; |
|
|
|
vidioc_setup_cap_fmt(ctx, &fmt_cap); |
|
|
|
fmt_cap.pixelformat = fmt->fourcc; |
|
|
|
fmt_cap.bytesperline = max(f->fmt.pix.bytesperline, |
|
ALIGN((fmt_cap.width * fmt->depth) >> 3, 8)); |
|
|
|
fmt_cap.sizeimage = max(f->fmt.pix.sizeimage, |
|
fmt_cap.height * fmt_cap.bytesperline); |
|
|
|
f->fmt.pix = fmt_cap; |
|
|
|
return 0; |
|
} |
|
|
|
static int vidioc_s_fmt_cap(struct file *file, void *priv, struct v4l2_format *f) |
|
{ |
|
struct ge2d_ctx *ctx = priv; |
|
struct meson_ge2d *ge2d = ctx->ge2d; |
|
struct vb2_queue *vq; |
|
struct ge2d_frame *frm; |
|
int ret = 0; |
|
|
|
/* Adjust all values accordingly to the hardware capabilities |
|
* and chosen format. |
|
*/ |
|
ret = vidioc_try_fmt_cap(file, priv, f); |
|
if (ret) |
|
return ret; |
|
|
|
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); |
|
if (vb2_is_busy(vq)) { |
|
v4l2_err(&ge2d->v4l2_dev, "queue (%d) bust\n", f->type); |
|
return -EBUSY; |
|
} |
|
|
|
frm = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); |
|
|
|
frm->pix_fmt = f->fmt.pix; |
|
frm->fmt = find_fmt(f); |
|
f->fmt.pix.pixelformat = frm->fmt->fourcc; |
|
|
|
/* Reset crop settings */ |
|
frm->crop.left = 0; |
|
frm->crop.top = 0; |
|
frm->crop.width = frm->pix_fmt.width; |
|
frm->crop.height = frm->pix_fmt.height; |
|
|
|
return 0; |
|
} |
|
|
|
static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f) |
|
{ |
|
struct ge2d_ctx *ctx = priv; |
|
struct vb2_queue *vq; |
|
struct ge2d_frame *frm; |
|
|
|
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); |
|
if (!vq) |
|
return -EINVAL; |
|
|
|
frm = get_frame(ctx, f->type); |
|
|
|
f->fmt.pix = frm->pix_fmt; |
|
f->fmt.pix.pixelformat = frm->fmt->fourcc; |
|
|
|
return 0; |
|
} |
|
|
|
static int vidioc_try_fmt_out(struct file *file, void *priv, struct v4l2_format *f) |
|
{ |
|
const struct ge2d_fmt *fmt = find_fmt(f); |
|
|
|
f->fmt.pix.field = V4L2_FIELD_NONE; |
|
f->fmt.pix.pixelformat = fmt->fourcc; |
|
|
|
if (f->fmt.pix.width > MAX_WIDTH) |
|
f->fmt.pix.width = MAX_WIDTH; |
|
if (f->fmt.pix.height > MAX_HEIGHT) |
|
f->fmt.pix.height = MAX_HEIGHT; |
|
|
|
f->fmt.pix.bytesperline = max(f->fmt.pix.bytesperline, |
|
ALIGN((f->fmt.pix.width * fmt->depth) >> 3, 8)); |
|
|
|
f->fmt.pix.sizeimage = max(f->fmt.pix.sizeimage, |
|
f->fmt.pix.height * f->fmt.pix.bytesperline); |
|
|
|
return 0; |
|
} |
|
|
|
static int vidioc_s_fmt_out(struct file *file, void *priv, struct v4l2_format *f) |
|
{ |
|
struct ge2d_ctx *ctx = priv; |
|
struct meson_ge2d *ge2d = ctx->ge2d; |
|
struct vb2_queue *vq; |
|
struct ge2d_frame *frm, *frm_cap; |
|
int ret = 0; |
|
|
|
/* Adjust all values accordingly to the hardware capabilities |
|
* and chosen format. |
|
*/ |
|
ret = vidioc_try_fmt_out(file, priv, f); |
|
if (ret) |
|
return ret; |
|
|
|
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); |
|
if (vb2_is_busy(vq)) { |
|
v4l2_err(&ge2d->v4l2_dev, "queue (%d) bust\n", f->type); |
|
return -EBUSY; |
|
} |
|
|
|
frm = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); |
|
frm_cap = get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); |
|
|
|
frm->pix_fmt = f->fmt.pix; |
|
frm->fmt = find_fmt(f); |
|
f->fmt.pix.pixelformat = frm->fmt->fourcc; |
|
|
|
/* Reset crop settings */ |
|
frm->crop.left = 0; |
|
frm->crop.top = 0; |
|
frm->crop.width = frm->pix_fmt.width; |
|
frm->crop.height = frm->pix_fmt.height; |
|
|
|
/* Propagate settings to capture */ |
|
vidioc_setup_cap_fmt(ctx, &frm_cap->pix_fmt); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct v4l2_ioctl_ops ge2d_ioctl_ops = { |
|
.vidioc_querycap = vidioc_querycap, |
|
|
|
.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt, |
|
.vidioc_g_fmt_vid_cap = vidioc_g_fmt, |
|
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_cap, |
|
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_cap, |
|
|
|
.vidioc_enum_fmt_vid_out = vidioc_enum_fmt, |
|
.vidioc_g_fmt_vid_out = vidioc_g_fmt, |
|
.vidioc_try_fmt_vid_out = vidioc_try_fmt_out, |
|
.vidioc_s_fmt_vid_out = vidioc_s_fmt_out, |
|
|
|
.vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, |
|
.vidioc_querybuf = v4l2_m2m_ioctl_querybuf, |
|
.vidioc_qbuf = v4l2_m2m_ioctl_qbuf, |
|
.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, |
|
.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, |
|
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, |
|
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf, |
|
|
|
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event, |
|
.vidioc_unsubscribe_event = v4l2_event_unsubscribe, |
|
|
|
.vidioc_streamon = v4l2_m2m_ioctl_streamon, |
|
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff, |
|
|
|
.vidioc_g_selection = vidioc_g_selection, |
|
.vidioc_s_selection = vidioc_s_selection, |
|
}; |
|
|
|
static int ge2d_s_ctrl(struct v4l2_ctrl *ctrl) |
|
{ |
|
struct ge2d_ctx *ctx = container_of(ctrl->handler, struct ge2d_ctx, |
|
ctrl_handler); |
|
struct v4l2_pix_format fmt; |
|
struct vb2_queue *vq; |
|
|
|
switch (ctrl->id) { |
|
case V4L2_CID_HFLIP: |
|
ctx->hflip = ctrl->val; |
|
break; |
|
case V4L2_CID_VFLIP: |
|
ctx->vflip = ctrl->val; |
|
break; |
|
case V4L2_CID_ROTATE: |
|
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); |
|
if (vb2_is_busy(vq)) |
|
return -EBUSY; |
|
|
|
if (ctrl->val == 90) { |
|
ctx->hflip = 0; |
|
ctx->vflip = 1; |
|
ctx->xy_swap = 1; |
|
} else if (ctrl->val == 180) { |
|
ctx->hflip = 1; |
|
ctx->vflip = 1; |
|
ctx->xy_swap = 0; |
|
} else if (ctrl->val == 270) { |
|
ctx->hflip = 1; |
|
ctx->vflip = 0; |
|
ctx->xy_swap = 1; |
|
} else { |
|
ctx->hflip = 0; |
|
ctx->vflip = 0; |
|
ctx->xy_swap = 0; |
|
} |
|
|
|
vidioc_setup_cap_fmt(ctx, &fmt); |
|
|
|
/* |
|
* If the rotation parameter changes the OUTPUT frames |
|
* parameters, take them in account |
|
*/ |
|
if (fmt.width != ctx->out.pix_fmt.width || |
|
fmt.height != ctx->out.pix_fmt.width || |
|
fmt.bytesperline > ctx->out.pix_fmt.bytesperline || |
|
fmt.sizeimage > ctx->out.pix_fmt.sizeimage) |
|
ctx->out.pix_fmt = fmt; |
|
|
|
break; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static const struct v4l2_ctrl_ops ge2d_ctrl_ops = { |
|
.s_ctrl = ge2d_s_ctrl, |
|
}; |
|
|
|
static int ge2d_setup_ctrls(struct ge2d_ctx *ctx) |
|
{ |
|
struct meson_ge2d *ge2d = ctx->ge2d; |
|
|
|
v4l2_ctrl_handler_init(&ctx->ctrl_handler, 4); |
|
|
|
v4l2_ctrl_new_std(&ctx->ctrl_handler, &ge2d_ctrl_ops, |
|
V4L2_CID_HFLIP, 0, 1, 1, 0); |
|
|
|
v4l2_ctrl_new_std(&ctx->ctrl_handler, &ge2d_ctrl_ops, |
|
V4L2_CID_VFLIP, 0, 1, 1, 0); |
|
|
|
v4l2_ctrl_new_std(&ctx->ctrl_handler, &ge2d_ctrl_ops, |
|
V4L2_CID_ROTATE, 0, 270, 90, 0); |
|
|
|
if (ctx->ctrl_handler.error) { |
|
int err = ctx->ctrl_handler.error; |
|
|
|
v4l2_err(&ge2d->v4l2_dev, "%s failed\n", __func__); |
|
v4l2_ctrl_handler_free(&ctx->ctrl_handler); |
|
return err; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static const struct ge2d_frame def_frame = { |
|
.pix_fmt = { |
|
.width = DEFAULT_WIDTH, |
|
.height = DEFAULT_HEIGHT, |
|
.bytesperline = DEFAULT_STRIDE, |
|
.sizeimage = DEFAULT_STRIDE * DEFAULT_HEIGHT, |
|
.field = V4L2_FIELD_NONE, |
|
}, |
|
.crop.width = DEFAULT_WIDTH, |
|
.crop.height = DEFAULT_HEIGHT, |
|
.fmt = &formats[0], |
|
}; |
|
|
|
static int ge2d_open(struct file *file) |
|
{ |
|
struct meson_ge2d *ge2d = video_drvdata(file); |
|
struct ge2d_ctx *ctx = NULL; |
|
int ret = 0; |
|
|
|
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); |
|
if (!ctx) |
|
return -ENOMEM; |
|
ctx->ge2d = ge2d; |
|
|
|
/* Set default formats */ |
|
ctx->in = def_frame; |
|
ctx->out = def_frame; |
|
|
|
if (mutex_lock_interruptible(&ge2d->mutex)) { |
|
kfree(ctx); |
|
return -ERESTARTSYS; |
|
} |
|
ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(ge2d->m2m_dev, ctx, &queue_init); |
|
if (IS_ERR(ctx->fh.m2m_ctx)) { |
|
ret = PTR_ERR(ctx->fh.m2m_ctx); |
|
mutex_unlock(&ge2d->mutex); |
|
kfree(ctx); |
|
return ret; |
|
} |
|
v4l2_fh_init(&ctx->fh, video_devdata(file)); |
|
file->private_data = &ctx->fh; |
|
v4l2_fh_add(&ctx->fh); |
|
|
|
ge2d_setup_ctrls(ctx); |
|
|
|
/* Write the default values to the ctx struct */ |
|
v4l2_ctrl_handler_setup(&ctx->ctrl_handler); |
|
|
|
ctx->fh.ctrl_handler = &ctx->ctrl_handler; |
|
mutex_unlock(&ge2d->mutex); |
|
|
|
return 0; |
|
} |
|
|
|
static int ge2d_release(struct file *file) |
|
{ |
|
struct ge2d_ctx *ctx = |
|
container_of(file->private_data, struct ge2d_ctx, fh); |
|
struct meson_ge2d *ge2d = ctx->ge2d; |
|
|
|
mutex_lock(&ge2d->mutex); |
|
|
|
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); |
|
kfree(ctx); |
|
|
|
mutex_unlock(&ge2d->mutex); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct v4l2_file_operations ge2d_fops = { |
|
.owner = THIS_MODULE, |
|
.open = ge2d_open, |
|
.release = ge2d_release, |
|
.poll = v4l2_m2m_fop_poll, |
|
.unlocked_ioctl = video_ioctl2, |
|
.mmap = v4l2_m2m_fop_mmap, |
|
}; |
|
|
|
static const struct video_device ge2d_videodev = { |
|
.name = "meson-ge2d", |
|
.fops = &ge2d_fops, |
|
.ioctl_ops = &ge2d_ioctl_ops, |
|
.minor = -1, |
|
.release = video_device_release, |
|
.vfl_dir = VFL_DIR_M2M, |
|
.device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING, |
|
}; |
|
|
|
static const struct regmap_config meson_ge2d_regmap_conf = { |
|
.reg_bits = 8, |
|
.val_bits = 32, |
|
.reg_stride = 4, |
|
.max_register = GE2D_SRC2_STRIDE_CTRL, |
|
}; |
|
|
|
static int ge2d_probe(struct platform_device *pdev) |
|
{ |
|
struct reset_control *rst; |
|
struct video_device *vfd; |
|
struct meson_ge2d *ge2d; |
|
struct resource *res; |
|
void __iomem *regs; |
|
int ret = 0; |
|
int irq; |
|
|
|
if (!pdev->dev.of_node) |
|
return -ENODEV; |
|
|
|
ge2d = devm_kzalloc(&pdev->dev, sizeof(*ge2d), GFP_KERNEL); |
|
if (!ge2d) |
|
return -ENOMEM; |
|
|
|
ge2d->dev = &pdev->dev; |
|
mutex_init(&ge2d->mutex); |
|
|
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
|
regs = devm_ioremap_resource(ge2d->dev, res); |
|
if (IS_ERR(regs)) |
|
return PTR_ERR(regs); |
|
|
|
ge2d->map = devm_regmap_init_mmio(ge2d->dev, regs, |
|
&meson_ge2d_regmap_conf); |
|
if (IS_ERR(ge2d->map)) |
|
return PTR_ERR(ge2d->map); |
|
|
|
irq = platform_get_irq(pdev, 0); |
|
ret = devm_request_irq(ge2d->dev, irq, ge2d_isr, 0, |
|
dev_name(ge2d->dev), ge2d); |
|
if (ret < 0) { |
|
dev_err(ge2d->dev, "failed to request irq\n"); |
|
return ret; |
|
} |
|
|
|
rst = devm_reset_control_get(ge2d->dev, NULL); |
|
if (IS_ERR(rst)) { |
|
dev_err(ge2d->dev, "failed to get core reset controller\n"); |
|
return PTR_ERR(rst); |
|
} |
|
|
|
ge2d->clk = devm_clk_get(ge2d->dev, NULL); |
|
if (IS_ERR(ge2d->clk)) { |
|
dev_err(ge2d->dev, "failed to get clock\n"); |
|
return PTR_ERR(ge2d->clk); |
|
} |
|
|
|
reset_control_assert(rst); |
|
udelay(1); |
|
reset_control_deassert(rst); |
|
|
|
ret = clk_prepare_enable(ge2d->clk); |
|
if (ret) { |
|
dev_err(ge2d->dev, "Cannot enable ge2d sclk: %d\n", ret); |
|
return ret; |
|
} |
|
|
|
ret = v4l2_device_register(&pdev->dev, &ge2d->v4l2_dev); |
|
if (ret) |
|
goto disable_clks; |
|
|
|
vfd = video_device_alloc(); |
|
if (!vfd) { |
|
v4l2_err(&ge2d->v4l2_dev, "Failed to allocate video device\n"); |
|
ret = -ENOMEM; |
|
goto unreg_v4l2_dev; |
|
} |
|
|
|
*vfd = ge2d_videodev; |
|
vfd->lock = &ge2d->mutex; |
|
vfd->v4l2_dev = &ge2d->v4l2_dev; |
|
|
|
video_set_drvdata(vfd, ge2d); |
|
ge2d->vfd = vfd; |
|
|
|
platform_set_drvdata(pdev, ge2d); |
|
ge2d->m2m_dev = v4l2_m2m_init(&ge2d_m2m_ops); |
|
if (IS_ERR(ge2d->m2m_dev)) { |
|
v4l2_err(&ge2d->v4l2_dev, "Failed to init mem2mem device\n"); |
|
ret = PTR_ERR(ge2d->m2m_dev); |
|
goto rel_vdev; |
|
} |
|
|
|
ret = video_register_device(vfd, VFL_TYPE_VIDEO, -1); |
|
if (ret) { |
|
v4l2_err(&ge2d->v4l2_dev, "Failed to register video device\n"); |
|
goto rel_m2m; |
|
} |
|
|
|
v4l2_info(&ge2d->v4l2_dev, "Registered %s as /dev/%s\n", |
|
vfd->name, video_device_node_name(vfd)); |
|
|
|
return 0; |
|
|
|
rel_m2m: |
|
v4l2_m2m_release(ge2d->m2m_dev); |
|
rel_vdev: |
|
video_device_release(ge2d->vfd); |
|
unreg_v4l2_dev: |
|
v4l2_device_unregister(&ge2d->v4l2_dev); |
|
disable_clks: |
|
clk_disable_unprepare(ge2d->clk); |
|
|
|
return ret; |
|
} |
|
|
|
static int ge2d_remove(struct platform_device *pdev) |
|
{ |
|
struct meson_ge2d *ge2d = platform_get_drvdata(pdev); |
|
|
|
video_unregister_device(ge2d->vfd); |
|
v4l2_m2m_release(ge2d->m2m_dev); |
|
video_device_release(ge2d->vfd); |
|
v4l2_device_unregister(&ge2d->v4l2_dev); |
|
clk_disable_unprepare(ge2d->clk); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct of_device_id meson_ge2d_match[] = { |
|
{ |
|
.compatible = "amlogic,axg-ge2d", |
|
}, |
|
{}, |
|
}; |
|
|
|
MODULE_DEVICE_TABLE(of, meson_ge2d_match); |
|
|
|
static struct platform_driver ge2d_drv = { |
|
.probe = ge2d_probe, |
|
.remove = ge2d_remove, |
|
.driver = { |
|
.name = "meson-ge2d", |
|
.of_match_table = meson_ge2d_match, |
|
}, |
|
}; |
|
|
|
module_platform_driver(ge2d_drv); |
|
|
|
MODULE_AUTHOR("Neil Armstrong <[email protected]>"); |
|
MODULE_DESCRIPTION("Amlogic 2D Graphic Acceleration Unit"); |
|
MODULE_LICENSE("GPL");
|
|
|