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Diffstat (limited to 'drivers/media/platform/amlogic/meson-ge2d/ge2d.c')
-rw-r--r--drivers/media/platform/amlogic/meson-ge2d/ge2d.c1061
1 files changed, 1061 insertions, 0 deletions
diff --git a/drivers/media/platform/amlogic/meson-ge2d/ge2d.c b/drivers/media/platform/amlogic/meson-ge2d/ge2d.c
new file mode 100644
index 000000000..142d421a8
--- /dev/null
+++ b/drivers/media/platform/amlogic/meson-ge2d/ge2d.c
@@ -0,0 +1,1061 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2020 BayLibre, SAS
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/bitfield.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/reset.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/timer.h>
+#include <linux/regmap.h>
+
+#include <linux/platform_device.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/v4l2-ctrls.h>
+#include <media/videobuf2-v4l2.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "ge2d-regs.h"
+
+#define GE2D_NAME "meson-ge2d"
+
+#define DEFAULT_WIDTH 128
+#define DEFAULT_HEIGHT 128
+#define DEFAULT_STRIDE 512
+
+#define MAX_WIDTH 8191
+#define MAX_HEIGHT 8191
+
+/*
+ * Missing features:
+ * - Scaling
+ * - Simple 1/2 vertical scaling
+ * - YUV input support
+ * - Source global alpha
+ * - Colorspace conversion
+ */
+
+struct ge2d_fmt {
+ u32 fourcc;
+ bool alpha;
+ bool le;
+ unsigned int depth;
+ unsigned int hw_fmt;
+ unsigned int hw_map;
+};
+
+struct ge2d_frame {
+ struct vb2_v4l2_buffer *buf;
+
+ /* Image Format */
+ struct v4l2_pix_format pix_fmt;
+
+ /* Crop */
+ struct v4l2_rect crop;
+
+ /* Image format */
+ const struct ge2d_fmt *fmt;
+};
+
+struct ge2d_ctx {
+ struct v4l2_fh fh;
+ struct meson_ge2d *ge2d;
+ struct ge2d_frame in;
+ struct ge2d_frame out;
+ struct v4l2_ctrl_handler ctrl_handler;
+
+ unsigned long sequence_out, sequence_cap;
+
+ /* Control values */
+ u32 hflip;
+ u32 vflip;
+ u32 xy_swap;
+};
+
+struct meson_ge2d {
+ struct v4l2_device v4l2_dev;
+ struct v4l2_m2m_dev *m2m_dev;
+ struct video_device *vfd;
+
+ struct device *dev;
+ struct regmap *map;
+ struct clk *clk;
+
+ /* vb2 queue lock */
+ struct mutex mutex;
+
+ struct ge2d_ctx *curr;
+};
+
+#define FMT(_fourcc, _alpha, _depth, _map) \
+{ \
+ .fourcc = _fourcc, \
+ .alpha = (_alpha), \
+ .depth = (_depth), \
+ .hw_fmt = GE2D_FORMAT_ ## _depth ## BIT, \
+ .hw_map = GE2D_COLOR_MAP_ ## _map, \
+}
+
+/* TOFIX Handle the YUV input formats */
+static const struct ge2d_fmt formats[] = {
+ /* FOURCC Alpha HW FMT HW MAP */
+ FMT(V4L2_PIX_FMT_XRGB32, false, 32, BGRA8888),
+ FMT(V4L2_PIX_FMT_RGB32, true, 32, BGRA8888),
+ FMT(V4L2_PIX_FMT_ARGB32, true, 32, BGRA8888),
+ FMT(V4L2_PIX_FMT_RGBX32, false, 32, ABGR8888),
+ FMT(V4L2_PIX_FMT_RGBA32, true, 32, ABGR8888),
+ FMT(V4L2_PIX_FMT_BGRX32, false, 32, RGBA8888),
+ FMT(V4L2_PIX_FMT_BGRA32, true, 32, RGBA8888),
+ FMT(V4L2_PIX_FMT_BGR32, true, 32, ARGB8888),
+ FMT(V4L2_PIX_FMT_ABGR32, true, 32, ARGB8888),
+ FMT(V4L2_PIX_FMT_XBGR32, false, 32, ARGB8888),
+
+ FMT(V4L2_PIX_FMT_RGB24, false, 24, BGR888),
+ FMT(V4L2_PIX_FMT_BGR24, false, 24, RGB888),
+
+ FMT(V4L2_PIX_FMT_XRGB555X, false, 16, ARGB1555),
+ FMT(V4L2_PIX_FMT_ARGB555X, true, 16, ARGB1555),
+ FMT(V4L2_PIX_FMT_RGB565, false, 16, RGB565),
+ FMT(V4L2_PIX_FMT_RGBX444, false, 16, RGBA4444),
+ FMT(V4L2_PIX_FMT_RGBA444, true, 16, RGBA4444),
+ FMT(V4L2_PIX_FMT_XRGB444, false, 16, ARGB4444),
+ FMT(V4L2_PIX_FMT_ARGB444, true, 16, ARGB4444),
+};
+
+#define NUM_FORMATS ARRAY_SIZE(formats)
+
+static const struct ge2d_fmt *find_fmt(struct v4l2_format *f)
+{
+ unsigned int i;
+
+ for (i = 0; i < NUM_FORMATS; i++) {
+ if (formats[i].fourcc == f->fmt.pix.pixelformat)
+ return &formats[i];
+ }
+
+ /*
+ * TRY_FMT/S_FMT should never return an error when the requested format
+ * is not supported. Drivers should always return a valid format,
+ * preferably a format that is as widely supported by applications as
+ * possible.
+ */
+ return &formats[0];
+}
+
+static struct ge2d_frame *get_frame(struct ge2d_ctx *ctx,
+ enum v4l2_buf_type type)
+{
+ switch (type) {
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+ return &ctx->in;
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ return &ctx->out;
+ default:
+ /* This should never happen, warn and return OUTPUT frame */
+ dev_warn(ctx->ge2d->dev, "%s: invalid buffer type\n", __func__);
+ return &ctx->in;
+ }
+}
+
+static void ge2d_hw_start(struct meson_ge2d *ge2d)
+{
+ struct ge2d_ctx *ctx = ge2d->curr;
+ u32 reg;
+
+ /* Reset */
+ regmap_update_bits(ge2d->map, GE2D_GEN_CTRL1,
+ GE2D_SOFT_RST, GE2D_SOFT_RST);
+ regmap_update_bits(ge2d->map, GE2D_GEN_CTRL1,
+ GE2D_SOFT_RST, 0);
+
+ usleep_range(100, 200);
+
+ /* Implement CANVAS for non-AXG */
+ regmap_write(ge2d->map, GE2D_SRC1_BADDR_CTRL,
+ (vb2_dma_contig_plane_dma_addr(&ctx->in.buf->vb2_buf, 0) + 7) >> 3);
+ regmap_write(ge2d->map, GE2D_SRC1_STRIDE_CTRL,
+ (ctx->in.pix_fmt.bytesperline + 7) >> 3);
+ regmap_write(ge2d->map, GE2D_SRC2_BADDR_CTRL,
+ (vb2_dma_contig_plane_dma_addr(&ctx->out.buf->vb2_buf, 0) + 7) >> 3);
+ regmap_write(ge2d->map, GE2D_SRC2_STRIDE_CTRL,
+ (ctx->out.pix_fmt.bytesperline + 7) >> 3);
+ regmap_write(ge2d->map, GE2D_DST1_BADDR_CTRL,
+ (vb2_dma_contig_plane_dma_addr(&ctx->out.buf->vb2_buf, 0) + 7) >> 3);
+ regmap_write(ge2d->map, GE2D_DST1_STRIDE_CTRL,
+ (ctx->out.pix_fmt.bytesperline + 7) >> 3);
+
+ regmap_write(ge2d->map, GE2D_GEN_CTRL0, 0);
+ regmap_write(ge2d->map, GE2D_GEN_CTRL1,
+ FIELD_PREP(GE2D_INTERRUPT_CTRL, 2) |
+ FIELD_PREP(GE2D_SRC2_BURST_SIZE_CTRL, 3) |
+ FIELD_PREP(GE2D_SRC1_BURST_SIZE_CTRL, 0x3f));
+
+ regmap_write(ge2d->map, GE2D_GEN_CTRL2,
+ GE2D_SRC1_LITTLE_ENDIAN |
+ GE2D_SRC2_LITTLE_ENDIAN |
+ GE2D_DST_LITTLE_ENDIAN |
+ FIELD_PREP(GE2D_DST1_COLOR_MAP, ctx->out.fmt->hw_map) |
+ FIELD_PREP(GE2D_DST1_FORMAT, ctx->out.fmt->hw_fmt) |
+ FIELD_PREP(GE2D_SRC2_COLOR_MAP, ctx->out.fmt->hw_map) |
+ FIELD_PREP(GE2D_SRC2_FORMAT, ctx->out.fmt->hw_fmt) |
+ FIELD_PREP(GE2D_SRC1_COLOR_MAP, ctx->in.fmt->hw_map) |
+ FIELD_PREP(GE2D_SRC1_FORMAT, ctx->in.fmt->hw_fmt));
+ regmap_write(ge2d->map, GE2D_GEN_CTRL3,
+ GE2D_DST1_ENABLE);
+
+ regmap_write(ge2d->map, GE2D_SRC1_CLIPY_START_END,
+ FIELD_PREP(GE2D_START, ctx->in.crop.top) |
+ FIELD_PREP(GE2D_END, ctx->in.crop.top + ctx->in.crop.height - 1));
+ regmap_write(ge2d->map, GE2D_SRC1_CLIPX_START_END,
+ FIELD_PREP(GE2D_START, ctx->in.crop.left) |
+ FIELD_PREP(GE2D_END, ctx->in.crop.left + ctx->in.crop.width - 1));
+ regmap_write(ge2d->map, GE2D_SRC2_CLIPY_START_END,
+ FIELD_PREP(GE2D_START, ctx->out.crop.top) |
+ FIELD_PREP(GE2D_END, ctx->out.crop.top + ctx->out.crop.height - 1));
+ regmap_write(ge2d->map, GE2D_SRC2_CLIPX_START_END,
+ FIELD_PREP(GE2D_START, ctx->out.crop.left) |
+ FIELD_PREP(GE2D_END, ctx->out.crop.left + ctx->out.crop.width - 1));
+ regmap_write(ge2d->map, GE2D_DST_CLIPY_START_END,
+ FIELD_PREP(GE2D_START, ctx->out.crop.top) |
+ FIELD_PREP(GE2D_END, ctx->out.crop.top + ctx->out.crop.height - 1));
+ regmap_write(ge2d->map, GE2D_DST_CLIPX_START_END,
+ FIELD_PREP(GE2D_START, ctx->out.crop.left) |
+ FIELD_PREP(GE2D_END, ctx->out.crop.left + ctx->out.crop.width - 1));
+
+ regmap_write(ge2d->map, GE2D_SRC1_Y_START_END,
+ FIELD_PREP(GE2D_END, ctx->in.pix_fmt.height - 1));
+ regmap_write(ge2d->map, GE2D_SRC1_X_START_END,
+ FIELD_PREP(GE2D_END, ctx->in.pix_fmt.width - 1));
+ regmap_write(ge2d->map, GE2D_SRC2_Y_START_END,
+ FIELD_PREP(GE2D_END, ctx->out.pix_fmt.height - 1));
+ regmap_write(ge2d->map, GE2D_SRC2_X_START_END,
+ FIELD_PREP(GE2D_END, ctx->out.pix_fmt.width - 1));
+ regmap_write(ge2d->map, GE2D_DST_Y_START_END,
+ FIELD_PREP(GE2D_END, ctx->out.pix_fmt.height - 1));
+ regmap_write(ge2d->map, GE2D_DST_X_START_END,
+ FIELD_PREP(GE2D_END, ctx->out.pix_fmt.width - 1));
+
+ /* Color, no blend, use source color */
+ reg = GE2D_ALU_DO_COLOR_OPERATION_LOGIC(LOGIC_OPERATION_COPY,
+ COLOR_FACTOR_SRC_COLOR);
+
+ if (ctx->in.fmt->alpha && ctx->out.fmt->alpha)
+ /* Take source alpha */
+ reg |= GE2D_ALU_DO_ALPHA_OPERATION_LOGIC(LOGIC_OPERATION_COPY,
+ COLOR_FACTOR_SRC_ALPHA);
+ else if (!ctx->out.fmt->alpha)
+ /* Set alpha to 0 */
+ reg |= GE2D_ALU_DO_ALPHA_OPERATION_LOGIC(LOGIC_OPERATION_SET,
+ COLOR_FACTOR_ZERO);
+ else
+ /* Keep original alpha */
+ reg |= GE2D_ALU_DO_ALPHA_OPERATION_LOGIC(LOGIC_OPERATION_COPY,
+ COLOR_FACTOR_DST_ALPHA);
+
+ regmap_write(ge2d->map, GE2D_ALU_OP_CTRL, reg);
+
+ /* Start */
+ regmap_write(ge2d->map, GE2D_CMD_CTRL,
+ (ctx->xy_swap ? GE2D_DST_XY_SWAP : 0) |
+ (ctx->hflip ? GE2D_SRC1_Y_REV : 0) |
+ (ctx->vflip ? GE2D_SRC1_X_REV : 0) |
+ GE2D_CBUS_CMD_WR);
+}
+
+static void device_run(void *priv)
+{
+ struct ge2d_ctx *ctx = priv;
+ struct meson_ge2d *ge2d = ctx->ge2d;
+
+ ge2d->curr = ctx;
+
+ ctx->in.buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
+ ctx->out.buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
+
+ ge2d_hw_start(ge2d);
+}
+
+static irqreturn_t ge2d_isr(int irq, void *priv)
+{
+ struct meson_ge2d *ge2d = priv;
+ u32 intr;
+
+ regmap_read(ge2d->map, GE2D_STATUS0, &intr);
+
+ if (!(intr & GE2D_GE2D_BUSY)) {
+ struct vb2_v4l2_buffer *src, *dst;
+ struct ge2d_ctx *ctx = ge2d->curr;
+
+ ge2d->curr = NULL;
+
+ src = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+ dst = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+
+ src->sequence = ctx->sequence_out++;
+ dst->sequence = ctx->sequence_cap++;
+
+ dst->timecode = src->timecode;
+ dst->vb2_buf.timestamp = src->vb2_buf.timestamp;
+ dst->flags = src->flags;
+
+ v4l2_m2m_buf_done(src, VB2_BUF_STATE_DONE);
+ v4l2_m2m_buf_done(dst, VB2_BUF_STATE_DONE);
+ v4l2_m2m_job_finish(ge2d->m2m_dev, ctx->fh.m2m_ctx);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static const struct v4l2_m2m_ops ge2d_m2m_ops = {
+ .device_run = device_run,
+};
+
+static int ge2d_queue_setup(struct vb2_queue *vq,
+ unsigned int *nbuffers, unsigned int *nplanes,
+ unsigned int sizes[], struct device *alloc_devs[])
+{
+ struct ge2d_ctx *ctx = vb2_get_drv_priv(vq);
+ struct ge2d_frame *f = get_frame(ctx, vq->type);
+
+ if (*nplanes)
+ return sizes[0] < f->pix_fmt.sizeimage ? -EINVAL : 0;
+
+ sizes[0] = f->pix_fmt.sizeimage;
+ *nplanes = 1;
+
+ return 0;
+}
+
+static int ge2d_buf_prepare(struct vb2_buffer *vb)
+{
+ struct ge2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct ge2d_frame *f = get_frame(ctx, vb->vb2_queue->type);
+
+ vbuf->field = V4L2_FIELD_NONE;
+
+ vb2_set_plane_payload(vb, 0, f->pix_fmt.sizeimage);
+
+ return 0;
+}
+
+static void ge2d_buf_queue(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct ge2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+
+ v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
+}
+
+static int ge2d_start_streaming(struct vb2_queue *vq, unsigned int count)
+{
+ struct ge2d_ctx *ctx = vb2_get_drv_priv(vq);
+
+ if (V4L2_TYPE_IS_OUTPUT(vq->type))
+ ctx->sequence_out = 0;
+ else
+ ctx->sequence_cap = 0;
+
+ return 0;
+}
+
+static void ge2d_stop_streaming(struct vb2_queue *vq)
+{
+ struct ge2d_ctx *ctx = vb2_get_drv_priv(vq);
+ struct vb2_v4l2_buffer *vbuf;
+
+ for (;;) {
+ if (V4L2_TYPE_IS_OUTPUT(vq->type))
+ vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+ else
+ vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+ if (!vbuf)
+ break;
+ v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
+ }
+}
+
+static const struct vb2_ops ge2d_qops = {
+ .queue_setup = ge2d_queue_setup,
+ .buf_prepare = ge2d_buf_prepare,
+ .buf_queue = ge2d_buf_queue,
+ .start_streaming = ge2d_start_streaming,
+ .stop_streaming = ge2d_stop_streaming,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+};
+
+static int
+queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
+{
+ struct ge2d_ctx *ctx = priv;
+ int ret;
+
+ src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+ src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
+ src_vq->drv_priv = ctx;
+ src_vq->ops = &ge2d_qops;
+ src_vq->mem_ops = &vb2_dma_contig_memops;
+ src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+ src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+ src_vq->lock = &ctx->ge2d->mutex;
+ src_vq->dev = ctx->ge2d->v4l2_dev.dev;
+
+ ret = vb2_queue_init(src_vq);
+ if (ret)
+ return ret;
+
+ dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
+ dst_vq->drv_priv = ctx;
+ dst_vq->ops = &ge2d_qops;
+ dst_vq->mem_ops = &vb2_dma_contig_memops;
+ dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+ dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+ dst_vq->lock = &ctx->ge2d->mutex;
+ dst_vq->dev = ctx->ge2d->v4l2_dev.dev;
+
+ return vb2_queue_init(dst_vq);
+}
+
+static int
+vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap)
+{
+ strscpy(cap->driver, GE2D_NAME, sizeof(cap->driver));
+ strscpy(cap->card, GE2D_NAME, sizeof(cap->card));
+ strscpy(cap->bus_info, "platform:" GE2D_NAME, sizeof(cap->bus_info));
+
+ return 0;
+}
+
+static int vidioc_enum_fmt(struct file *file, void *priv, struct v4l2_fmtdesc *f)
+{
+ const struct ge2d_fmt *fmt;
+
+ if (f->index >= NUM_FORMATS)
+ return -EINVAL;
+
+ fmt = &formats[f->index];
+ f->pixelformat = fmt->fourcc;
+
+ return 0;
+}
+
+static int vidioc_g_selection(struct file *file, void *priv,
+ struct v4l2_selection *s)
+{
+ struct ge2d_ctx *ctx = priv;
+ struct ge2d_frame *f;
+ bool use_frame = false;
+
+ 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_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
+ */
+ 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;
+ 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);
+
+ regs = devm_platform_ioremap_resource(pdev, 0);
+ 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);
+ 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 <narmstrong@baylibre.com>");
+MODULE_DESCRIPTION("Amlogic 2D Graphic Acceleration Unit");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 17:19:53 +0000