/* * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd * Author: Jacob Chen * * This software is licensed under the terms of the GNU General Public * License version 2, as published by the Free Software Foundation, and * may be copied, distributed, and modified under those terms. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "rga-hw.h" #include "rga.h" static int debug; module_param(debug, int, 0644); static void job_abort(void *prv) { struct rga_ctx *ctx = prv; struct rockchip_rga *rga = ctx->rga; if (!rga->curr) /* No job currently running */ return; wait_event_timeout(rga->irq_queue, !rga->curr, msecs_to_jiffies(RGA_TIMEOUT)); } static void device_run(void *prv) { struct rga_ctx *ctx = prv; struct rockchip_rga *rga = ctx->rga; struct vb2_buffer *src, *dst; unsigned long flags; spin_lock_irqsave(&rga->ctrl_lock, flags); rga->curr = ctx; src = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); dst = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); rga_buf_map(src); rga_buf_map(dst); rga_hw_start(rga); spin_unlock_irqrestore(&rga->ctrl_lock, flags); } static irqreturn_t rga_isr(int irq, void *prv) { struct rockchip_rga *rga = prv; int intr; intr = rga_read(rga, RGA_INT) & 0xf; rga_mod(rga, RGA_INT, intr << 4, 0xf << 4); if (intr & 0x04) { struct vb2_v4l2_buffer *src, *dst; struct rga_ctx *ctx = rga->curr; WARN_ON(!ctx); rga->curr = NULL; src = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); dst = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); WARN_ON(!src); WARN_ON(!dst); dst->timecode = src->timecode; dst->vb2_buf.timestamp = src->vb2_buf.timestamp; dst->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK; dst->flags |= src->flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK; v4l2_m2m_buf_done(src, VB2_BUF_STATE_DONE); v4l2_m2m_buf_done(dst, VB2_BUF_STATE_DONE); v4l2_m2m_job_finish(rga->m2m_dev, ctx->fh.m2m_ctx); wake_up(&rga->irq_queue); } return IRQ_HANDLED; } static struct v4l2_m2m_ops rga_m2m_ops = { .device_run = device_run, .job_abort = job_abort, }; static int queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq) { struct rga_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 = &rga_qops; src_vq->mem_ops = &vb2_dma_sg_memops; src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; src_vq->lock = &ctx->rga->mutex; src_vq->dev = ctx->rga->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 = &rga_qops; dst_vq->mem_ops = &vb2_dma_sg_memops; dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; dst_vq->lock = &ctx->rga->mutex; dst_vq->dev = ctx->rga->v4l2_dev.dev; return vb2_queue_init(dst_vq); } static int rga_s_ctrl(struct v4l2_ctrl *ctrl) { struct rga_ctx *ctx = container_of(ctrl->handler, struct rga_ctx, ctrl_handler); unsigned long flags; spin_lock_irqsave(&ctx->rga->ctrl_lock, flags); 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: ctx->rotate = ctrl->val; break; case V4L2_CID_BG_COLOR: ctx->fill_color = ctrl->val; break; } spin_unlock_irqrestore(&ctx->rga->ctrl_lock, flags); return 0; } static const struct v4l2_ctrl_ops rga_ctrl_ops = { .s_ctrl = rga_s_ctrl, }; static int rga_setup_ctrls(struct rga_ctx *ctx) { struct rockchip_rga *rga = ctx->rga; v4l2_ctrl_handler_init(&ctx->ctrl_handler, 4); v4l2_ctrl_new_std(&ctx->ctrl_handler, &rga_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0); v4l2_ctrl_new_std(&ctx->ctrl_handler, &rga_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0); v4l2_ctrl_new_std(&ctx->ctrl_handler, &rga_ctrl_ops, V4L2_CID_ROTATE, 0, 270, 90, 0); v4l2_ctrl_new_std(&ctx->ctrl_handler, &rga_ctrl_ops, V4L2_CID_BG_COLOR, 0, 0xffffffff, 1, 0); if (ctx->ctrl_handler.error) { int err = ctx->ctrl_handler.error; v4l2_err(&rga->v4l2_dev, "%s failed\n", __func__); v4l2_ctrl_handler_free(&ctx->ctrl_handler); return err; } return 0; } static struct rga_fmt formats[] = { { .fourcc = V4L2_PIX_FMT_ARGB32, .color_swap = RGA_COLOR_RB_SWAP, .hw_format = RGA_COLOR_FMT_ABGR8888, .depth = 32, .uv_factor = 1, .y_div = 1, .x_div = 1, }, { .fourcc = V4L2_PIX_FMT_XRGB32, .color_swap = RGA_COLOR_RB_SWAP, .hw_format = RGA_COLOR_FMT_XBGR8888, .depth = 32, .uv_factor = 1, .y_div = 1, .x_div = 1, }, { .fourcc = V4L2_PIX_FMT_ABGR32, .color_swap = RGA_COLOR_ALPHA_SWAP, .hw_format = RGA_COLOR_FMT_ABGR8888, .depth = 32, .uv_factor = 1, .y_div = 1, .x_div = 1, }, { .fourcc = V4L2_PIX_FMT_XBGR32, .color_swap = RGA_COLOR_ALPHA_SWAP, .hw_format = RGA_COLOR_FMT_XBGR8888, .depth = 32, .uv_factor = 1, .y_div = 1, .x_div = 1, }, { .fourcc = V4L2_PIX_FMT_RGB24, .color_swap = RGA_COLOR_NONE_SWAP, .hw_format = RGA_COLOR_FMT_RGB888, .depth = 24, .uv_factor = 1, .y_div = 1, .x_div = 1, }, { .fourcc = V4L2_PIX_FMT_BGR24, .color_swap = RGA_COLOR_RB_SWAP, .hw_format = RGA_COLOR_FMT_RGB888, .depth = 24, .uv_factor = 1, .y_div = 1, .x_div = 1, }, { .fourcc = V4L2_PIX_FMT_ARGB444, .color_swap = RGA_COLOR_RB_SWAP, .hw_format = RGA_COLOR_FMT_ABGR4444, .depth = 16, .uv_factor = 1, .y_div = 1, .x_div = 1, }, { .fourcc = V4L2_PIX_FMT_ARGB555, .color_swap = RGA_COLOR_RB_SWAP, .hw_format = RGA_COLOR_FMT_ABGR1555, .depth = 16, .uv_factor = 1, .y_div = 1, .x_div = 1, }, { .fourcc = V4L2_PIX_FMT_RGB565, .color_swap = RGA_COLOR_RB_SWAP, .hw_format = RGA_COLOR_FMT_BGR565, .depth = 16, .uv_factor = 1, .y_div = 1, .x_div = 1, }, { .fourcc = V4L2_PIX_FMT_NV21, .color_swap = RGA_COLOR_UV_SWAP, .hw_format = RGA_COLOR_FMT_YUV420SP, .depth = 12, .uv_factor = 4, .y_div = 2, .x_div = 1, }, { .fourcc = V4L2_PIX_FMT_NV61, .color_swap = RGA_COLOR_UV_SWAP, .hw_format = RGA_COLOR_FMT_YUV422SP, .depth = 16, .uv_factor = 2, .y_div = 1, .x_div = 1, }, { .fourcc = V4L2_PIX_FMT_NV12, .color_swap = RGA_COLOR_NONE_SWAP, .hw_format = RGA_COLOR_FMT_YUV420SP, .depth = 12, .uv_factor = 4, .y_div = 2, .x_div = 1, }, { .fourcc = V4L2_PIX_FMT_NV16, .color_swap = RGA_COLOR_NONE_SWAP, .hw_format = RGA_COLOR_FMT_YUV422SP, .depth = 16, .uv_factor = 2, .y_div = 1, .x_div = 1, }, { .fourcc = V4L2_PIX_FMT_YUV420, .color_swap = RGA_COLOR_NONE_SWAP, .hw_format = RGA_COLOR_FMT_YUV420P, .depth = 12, .uv_factor = 4, .y_div = 2, .x_div = 2, }, { .fourcc = V4L2_PIX_FMT_YUV422P, .color_swap = RGA_COLOR_NONE_SWAP, .hw_format = RGA_COLOR_FMT_YUV422P, .depth = 16, .uv_factor = 2, .y_div = 1, .x_div = 2, }, { .fourcc = V4L2_PIX_FMT_YVU420, .color_swap = RGA_COLOR_UV_SWAP, .hw_format = RGA_COLOR_FMT_YUV420P, .depth = 12, .uv_factor = 4, .y_div = 2, .x_div = 2, }, }; #define NUM_FORMATS ARRAY_SIZE(formats) static struct rga_fmt *rga_fmt_find(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]; } return NULL; } static struct rga_frame def_frame = { .width = DEFAULT_WIDTH, .height = DEFAULT_HEIGHT, .colorspace = V4L2_COLORSPACE_DEFAULT, .crop.left = 0, .crop.top = 0, .crop.width = DEFAULT_WIDTH, .crop.height = DEFAULT_HEIGHT, .fmt = &formats[0], }; struct rga_frame *rga_get_frame(struct rga_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: return ERR_PTR(-EINVAL); } } static int rga_open(struct file *file) { struct rockchip_rga *rga = video_drvdata(file); struct rga_ctx *ctx = NULL; int ret = 0; ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; ctx->rga = rga; /* Set default formats */ ctx->in = def_frame; ctx->out = def_frame; if (mutex_lock_interruptible(&rga->mutex)) { kfree(ctx); return -ERESTARTSYS; } ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(rga->m2m_dev, ctx, &queue_init); if (IS_ERR(ctx->fh.m2m_ctx)) { ret = PTR_ERR(ctx->fh.m2m_ctx); mutex_unlock(&rga->mutex); kfree(ctx); return ret; } v4l2_fh_init(&ctx->fh, video_devdata(file)); file->private_data = &ctx->fh; v4l2_fh_add(&ctx->fh); rga_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(&rga->mutex); return 0; } static int rga_release(struct file *file) { struct rga_ctx *ctx = container_of(file->private_data, struct rga_ctx, fh); struct rockchip_rga *rga = ctx->rga; mutex_lock(&rga->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(&rga->mutex); return 0; } static const struct v4l2_file_operations rga_fops = { .owner = THIS_MODULE, .open = rga_open, .release = rga_release, .poll = v4l2_m2m_fop_poll, .unlocked_ioctl = video_ioctl2, .mmap = v4l2_m2m_fop_mmap, }; static int vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { strlcpy(cap->driver, RGA_NAME, sizeof(cap->driver)); strlcpy(cap->card, "rockchip-rga", sizeof(cap->card)); strlcpy(cap->bus_info, "platform:rga", sizeof(cap->bus_info)); return 0; } static int vidioc_enum_fmt(struct file *file, void *prv, struct v4l2_fmtdesc *f) { struct rga_fmt *fmt; if (f->index >= NUM_FORMATS) return -EINVAL; fmt = &formats[f->index]; f->pixelformat = fmt->fourcc; return 0; } static int vidioc_g_fmt(struct file *file, void *prv, struct v4l2_format *f) { struct rga_ctx *ctx = prv; struct vb2_queue *vq; struct rga_frame *frm; vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); if (!vq) return -EINVAL; frm = rga_get_frame(ctx, f->type); if (IS_ERR(frm)) return PTR_ERR(frm); f->fmt.pix.width = frm->width; f->fmt.pix.height = frm->height; f->fmt.pix.field = V4L2_FIELD_NONE; f->fmt.pix.pixelformat = frm->fmt->fourcc; f->fmt.pix.bytesperline = frm->stride; f->fmt.pix.sizeimage = frm->size; f->fmt.pix.colorspace = frm->colorspace; return 0; } static int vidioc_try_fmt(struct file *file, void *prv, struct v4l2_format *f) { struct rga_fmt *fmt; fmt = rga_fmt_find(f); if (!fmt) { fmt = &formats[0]; f->fmt.pix.pixelformat = fmt->fourcc; } f->fmt.pix.field = V4L2_FIELD_NONE; 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; if (f->fmt.pix.width < MIN_WIDTH) f->fmt.pix.width = MIN_WIDTH; if (f->fmt.pix.height < MIN_HEIGHT) f->fmt.pix.height = MIN_HEIGHT; if (fmt->hw_format >= RGA_COLOR_FMT_YUV422SP) f->fmt.pix.bytesperline = f->fmt.pix.width; else f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3; f->fmt.pix.sizeimage = f->fmt.pix.height * (f->fmt.pix.width * fmt->depth) >> 3; return 0; } static int vidioc_s_fmt(struct file *file, void *prv, struct v4l2_format *f) { struct rga_ctx *ctx = prv; struct rockchip_rga *rga = ctx->rga; struct vb2_queue *vq; struct rga_frame *frm; struct rga_fmt *fmt; int ret = 0; /* Adjust all values accordingly to the hardware capabilities * and chosen format. */ ret = vidioc_try_fmt(file, prv, f); if (ret) return ret; vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); if (vb2_is_busy(vq)) { v4l2_err(&rga->v4l2_dev, "queue (%d) bust\n", f->type); return -EBUSY; } frm = rga_get_frame(ctx, f->type); if (IS_ERR(frm)) return PTR_ERR(frm); fmt = rga_fmt_find(f); if (!fmt) return -EINVAL; frm->width = f->fmt.pix.width; frm->height = f->fmt.pix.height; frm->size = f->fmt.pix.sizeimage; frm->fmt = fmt; frm->stride = f->fmt.pix.bytesperline; frm->colorspace = f->fmt.pix.colorspace; /* Reset crop settings */ frm->crop.left = 0; frm->crop.top = 0; frm->crop.width = frm->width; frm->crop.height = frm->height; return 0; } static int vidioc_g_selection(struct file *file, void *prv, struct v4l2_selection *s) { struct rga_ctx *ctx = prv; struct rga_frame *f; bool use_frame = false; f = rga_get_frame(ctx, s->type); if (IS_ERR(f)) return PTR_ERR(f); 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->width; s->r.height = f->height; } return 0; } static int vidioc_s_selection(struct file *file, void *prv, struct v4l2_selection *s) { struct rga_ctx *ctx = prv; struct rockchip_rga *rga = ctx->rga; struct rga_frame *f; int ret = 0; f = rga_get_frame(ctx, s->type); if (IS_ERR(f)) return PTR_ERR(f); 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_dbg(debug, 1, &rga->v4l2_dev, "doesn't support negative values for top & left.\n"); return -EINVAL; } if (s->r.left + s->r.width > f->width || s->r.top + s->r.height > f->height || s->r.width < MIN_WIDTH || s->r.height < MIN_HEIGHT) { v4l2_dbg(debug, 1, &rga->v4l2_dev, "unsupported crop value.\n"); return -EINVAL; } f->crop = s->r; return ret; } static const struct v4l2_ioctl_ops rga_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, .vidioc_s_fmt_vid_cap = vidioc_s_fmt, .vidioc_enum_fmt_vid_out = vidioc_enum_fmt, .vidioc_g_fmt_vid_out = vidioc_g_fmt, .vidioc_try_fmt_vid_out = vidioc_try_fmt, .vidioc_s_fmt_vid_out = vidioc_s_fmt, .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 struct video_device rga_videodev = { .name = "rockchip-rga", .fops = &rga_fops, .ioctl_ops = &rga_ioctl_ops, .minor = -1, .release = video_device_release, .vfl_dir = VFL_DIR_M2M, .device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING, }; static int rga_enable_clocks(struct rockchip_rga *rga) { int ret; ret = clk_prepare_enable(rga->sclk); if (ret) { dev_err(rga->dev, "Cannot enable rga sclk: %d\n", ret); return ret; } ret = clk_prepare_enable(rga->aclk); if (ret) { dev_err(rga->dev, "Cannot enable rga aclk: %d\n", ret); goto err_disable_sclk; } ret = clk_prepare_enable(rga->hclk); if (ret) { dev_err(rga->dev, "Cannot enable rga hclk: %d\n", ret); goto err_disable_aclk; } return 0; err_disable_sclk: clk_disable_unprepare(rga->sclk); err_disable_aclk: clk_disable_unprepare(rga->aclk); return ret; } static void rga_disable_clocks(struct rockchip_rga *rga) { clk_disable_unprepare(rga->sclk); clk_disable_unprepare(rga->hclk); clk_disable_unprepare(rga->aclk); } static int rga_parse_dt(struct rockchip_rga *rga) { struct reset_control *core_rst, *axi_rst, *ahb_rst; core_rst = devm_reset_control_get(rga->dev, "core"); if (IS_ERR(core_rst)) { dev_err(rga->dev, "failed to get core reset controller\n"); return PTR_ERR(core_rst); } axi_rst = devm_reset_control_get(rga->dev, "axi"); if (IS_ERR(axi_rst)) { dev_err(rga->dev, "failed to get axi reset controller\n"); return PTR_ERR(axi_rst); } ahb_rst = devm_reset_control_get(rga->dev, "ahb"); if (IS_ERR(ahb_rst)) { dev_err(rga->dev, "failed to get ahb reset controller\n"); return PTR_ERR(ahb_rst); } reset_control_assert(core_rst); udelay(1); reset_control_deassert(core_rst); reset_control_assert(axi_rst); udelay(1); reset_control_deassert(axi_rst); reset_control_assert(ahb_rst); udelay(1); reset_control_deassert(ahb_rst); rga->sclk = devm_clk_get(rga->dev, "sclk"); if (IS_ERR(rga->sclk)) { dev_err(rga->dev, "failed to get sclk clock\n"); return PTR_ERR(rga->sclk); } rga->aclk = devm_clk_get(rga->dev, "aclk"); if (IS_ERR(rga->aclk)) { dev_err(rga->dev, "failed to get aclk clock\n"); return PTR_ERR(rga->aclk); } rga->hclk = devm_clk_get(rga->dev, "hclk"); if (IS_ERR(rga->hclk)) { dev_err(rga->dev, "failed to get hclk clock\n"); return PTR_ERR(rga->hclk); } return 0; } static int rga_probe(struct platform_device *pdev) { struct rockchip_rga *rga; struct video_device *vfd; struct resource *res; int ret = 0; int irq; if (!pdev->dev.of_node) return -ENODEV; rga = devm_kzalloc(&pdev->dev, sizeof(*rga), GFP_KERNEL); if (!rga) return -ENOMEM; rga->dev = &pdev->dev; spin_lock_init(&rga->ctrl_lock); mutex_init(&rga->mutex); init_waitqueue_head(&rga->irq_queue); ret = rga_parse_dt(rga); if (ret) dev_err(&pdev->dev, "Unable to parse OF data\n"); pm_runtime_enable(rga->dev); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); rga->regs = devm_ioremap_resource(rga->dev, res); if (IS_ERR(rga->regs)) { ret = PTR_ERR(rga->regs); goto err_put_clk; } irq = platform_get_irq(pdev, 0); if (irq < 0) { dev_err(rga->dev, "failed to get irq\n"); ret = irq; goto err_put_clk; } ret = devm_request_irq(rga->dev, irq, rga_isr, 0, dev_name(rga->dev), rga); if (ret < 0) { dev_err(rga->dev, "failed to request irq\n"); goto err_put_clk; } ret = v4l2_device_register(&pdev->dev, &rga->v4l2_dev); if (ret) goto err_put_clk; vfd = video_device_alloc(); if (!vfd) { v4l2_err(&rga->v4l2_dev, "Failed to allocate video device\n"); ret = -ENOMEM; goto unreg_v4l2_dev; } *vfd = rga_videodev; vfd->lock = &rga->mutex; vfd->v4l2_dev = &rga->v4l2_dev; video_set_drvdata(vfd, rga); snprintf(vfd->name, sizeof(vfd->name), "%s", rga_videodev.name); rga->vfd = vfd; platform_set_drvdata(pdev, rga); rga->m2m_dev = v4l2_m2m_init(&rga_m2m_ops); if (IS_ERR(rga->m2m_dev)) { v4l2_err(&rga->v4l2_dev, "Failed to init mem2mem device\n"); ret = PTR_ERR(rga->m2m_dev); goto unreg_video_dev; } pm_runtime_get_sync(rga->dev); rga->version.major = (rga_read(rga, RGA_VERSION_INFO) >> 24) & 0xFF; rga->version.minor = (rga_read(rga, RGA_VERSION_INFO) >> 20) & 0x0F; v4l2_info(&rga->v4l2_dev, "HW Version: 0x%02x.%02x\n", rga->version.major, rga->version.minor); pm_runtime_put(rga->dev); /* Create CMD buffer */ rga->cmdbuf_virt = dma_alloc_attrs(rga->dev, RGA_CMDBUF_SIZE, &rga->cmdbuf_phy, GFP_KERNEL, DMA_ATTR_WRITE_COMBINE); rga->src_mmu_pages = (unsigned int *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, 3); rga->dst_mmu_pages = (unsigned int *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, 3); def_frame.stride = (def_frame.width * def_frame.fmt->depth) >> 3; def_frame.size = def_frame.stride * def_frame.height; ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1); if (ret) { v4l2_err(&rga->v4l2_dev, "Failed to register video device\n"); goto rel_vdev; } v4l2_info(&rga->v4l2_dev, "Registered %s as /dev/%s\n", vfd->name, video_device_node_name(vfd)); return 0; rel_vdev: video_device_release(vfd); unreg_video_dev: video_unregister_device(rga->vfd); unreg_v4l2_dev: v4l2_device_unregister(&rga->v4l2_dev); err_put_clk: pm_runtime_disable(rga->dev); return ret; } static int rga_remove(struct platform_device *pdev) { struct rockchip_rga *rga = platform_get_drvdata(pdev); dma_free_attrs(rga->dev, RGA_CMDBUF_SIZE, &rga->cmdbuf_virt, rga->cmdbuf_phy, DMA_ATTR_WRITE_COMBINE); free_pages((unsigned long)rga->src_mmu_pages, 3); free_pages((unsigned long)rga->dst_mmu_pages, 3); v4l2_info(&rga->v4l2_dev, "Removing\n"); v4l2_m2m_release(rga->m2m_dev); video_unregister_device(rga->vfd); v4l2_device_unregister(&rga->v4l2_dev); pm_runtime_disable(rga->dev); return 0; } static int __maybe_unused rga_runtime_suspend(struct device *dev) { struct rockchip_rga *rga = dev_get_drvdata(dev); rga_disable_clocks(rga); return 0; } static int __maybe_unused rga_runtime_resume(struct device *dev) { struct rockchip_rga *rga = dev_get_drvdata(dev); return rga_enable_clocks(rga); } static const struct dev_pm_ops rga_pm = { SET_RUNTIME_PM_OPS(rga_runtime_suspend, rga_runtime_resume, NULL) }; static const struct of_device_id rockchip_rga_match[] = { { .compatible = "rockchip,rk3288-rga", }, { .compatible = "rockchip,rk3399-rga", }, {}, }; MODULE_DEVICE_TABLE(of, rockchip_rga_match); static struct platform_driver rga_pdrv = { .probe = rga_probe, .remove = rga_remove, .driver = { .name = RGA_NAME, .pm = &rga_pm, .of_match_table = rockchip_rga_match, }, }; module_platform_driver(rga_pdrv); MODULE_AUTHOR("Jacob Chen "); MODULE_DESCRIPTION("Rockchip Raster 2d Graphic Acceleration Unit"); MODULE_LICENSE("GPL");