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authorMauro Carvalho Chehab <mchehab@kernel.org>2022-03-13 11:18:16 +0100
committerMauro Carvalho Chehab <mchehab@kernel.org>2022-03-18 05:56:51 +0100
commit238c84f71120f41c45301359902a912a19370f3d (patch)
treec16ced196c926c08b0c1e9513a19710bbbfc9bfa /drivers/media/platform/exynos4-is/fimc-m2m.c
parent9b18ef7c9ff408df170ac339c57a759145c055d2 (diff)
media: platform: rename exynos4-is/ to samsung/exynos4-is/
As the end goal is to have platform drivers split by vendor, rename exynos4-is/ to samsung/exynos4-is/. Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media/platform/exynos4-is/fimc-m2m.c')
-rw-r--r--drivers/media/platform/exynos4-is/fimc-m2m.c773
1 files changed, 0 insertions, 773 deletions
diff --git a/drivers/media/platform/exynos4-is/fimc-m2m.c b/drivers/media/platform/exynos4-is/fimc-m2m.c
deleted file mode 100644
index df8e2aa454d8..000000000000
--- a/drivers/media/platform/exynos4-is/fimc-m2m.c
+++ /dev/null
@@ -1,773 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Samsung S5P/EXYNOS4 SoC series FIMC (video postprocessor) driver
- *
- * Copyright (C) 2012 - 2013 Samsung Electronics Co., Ltd.
- * Sylwester Nawrocki <s.nawrocki@samsung.com>
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/bug.h>
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-#include <linux/list.h>
-#include <linux/io.h>
-#include <linux/slab.h>
-#include <linux/clk.h>
-#include <media/v4l2-ioctl.h>
-#include <media/videobuf2-v4l2.h>
-#include <media/videobuf2-dma-contig.h>
-
-#include "common.h"
-#include "fimc-core.h"
-#include "fimc-reg.h"
-#include "media-dev.h"
-
-static unsigned int get_m2m_fmt_flags(unsigned int stream_type)
-{
- if (stream_type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
- return FMT_FLAGS_M2M_IN;
- else
- return FMT_FLAGS_M2M_OUT;
-}
-
-void fimc_m2m_job_finish(struct fimc_ctx *ctx, int vb_state)
-{
- struct vb2_v4l2_buffer *src_vb, *dst_vb;
-
- if (!ctx || !ctx->fh.m2m_ctx)
- return;
-
- src_vb = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
- dst_vb = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
-
- if (src_vb)
- v4l2_m2m_buf_done(src_vb, vb_state);
- if (dst_vb)
- v4l2_m2m_buf_done(dst_vb, vb_state);
- if (src_vb && dst_vb)
- v4l2_m2m_job_finish(ctx->fimc_dev->m2m.m2m_dev,
- ctx->fh.m2m_ctx);
-}
-
-/* Complete the transaction which has been scheduled for execution. */
-static void fimc_m2m_shutdown(struct fimc_ctx *ctx)
-{
- struct fimc_dev *fimc = ctx->fimc_dev;
-
- if (!fimc_m2m_pending(fimc))
- return;
-
- fimc_ctx_state_set(FIMC_CTX_SHUT, ctx);
-
- wait_event_timeout(fimc->irq_queue,
- !fimc_ctx_state_is_set(FIMC_CTX_SHUT, ctx),
- FIMC_SHUTDOWN_TIMEOUT);
-}
-
-static int start_streaming(struct vb2_queue *q, unsigned int count)
-{
- struct fimc_ctx *ctx = q->drv_priv;
-
- return pm_runtime_resume_and_get(&ctx->fimc_dev->pdev->dev);
-}
-
-static void stop_streaming(struct vb2_queue *q)
-{
- struct fimc_ctx *ctx = q->drv_priv;
-
- fimc_m2m_shutdown(ctx);
- fimc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR);
- pm_runtime_put(&ctx->fimc_dev->pdev->dev);
-}
-
-static void fimc_device_run(void *priv)
-{
- struct vb2_v4l2_buffer *src_vb, *dst_vb;
- struct fimc_ctx *ctx = priv;
- struct fimc_frame *sf, *df;
- struct fimc_dev *fimc;
- unsigned long flags;
- int ret;
-
- if (WARN(!ctx, "Null context\n"))
- return;
-
- fimc = ctx->fimc_dev;
- spin_lock_irqsave(&fimc->slock, flags);
-
- set_bit(ST_M2M_PEND, &fimc->state);
- sf = &ctx->s_frame;
- df = &ctx->d_frame;
-
- if (ctx->state & FIMC_PARAMS) {
- /* Prepare the DMA offsets for scaler */
- fimc_prepare_dma_offset(ctx, sf);
- fimc_prepare_dma_offset(ctx, df);
- }
-
- src_vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
- ret = fimc_prepare_addr(ctx, &src_vb->vb2_buf, sf, &sf->addr);
- if (ret)
- goto dma_unlock;
-
- dst_vb = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
- ret = fimc_prepare_addr(ctx, &dst_vb->vb2_buf, df, &df->addr);
- if (ret)
- goto dma_unlock;
-
- dst_vb->vb2_buf.timestamp = src_vb->vb2_buf.timestamp;
- dst_vb->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
- dst_vb->flags |=
- src_vb->flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
-
- /* Reconfigure hardware if the context has changed. */
- if (fimc->m2m.ctx != ctx) {
- ctx->state |= FIMC_PARAMS;
- fimc->m2m.ctx = ctx;
- }
-
- if (ctx->state & FIMC_PARAMS) {
- fimc_set_yuv_order(ctx);
- fimc_hw_set_input_path(ctx);
- fimc_hw_set_in_dma(ctx);
- ret = fimc_set_scaler_info(ctx);
- if (ret)
- goto dma_unlock;
- fimc_hw_set_prescaler(ctx);
- fimc_hw_set_mainscaler(ctx);
- fimc_hw_set_target_format(ctx);
- fimc_hw_set_rotation(ctx);
- fimc_hw_set_effect(ctx);
- fimc_hw_set_out_dma(ctx);
- if (fimc->drv_data->alpha_color)
- fimc_hw_set_rgb_alpha(ctx);
- fimc_hw_set_output_path(ctx);
- }
- fimc_hw_set_input_addr(fimc, &sf->addr);
- fimc_hw_set_output_addr(fimc, &df->addr, -1);
-
- fimc_activate_capture(ctx);
- ctx->state &= (FIMC_CTX_M2M | FIMC_CTX_CAP);
- fimc_hw_activate_input_dma(fimc, true);
-
-dma_unlock:
- spin_unlock_irqrestore(&fimc->slock, flags);
-}
-
-static void fimc_job_abort(void *priv)
-{
- fimc_m2m_shutdown(priv);
-}
-
-static int fimc_queue_setup(struct vb2_queue *vq,
- unsigned int *num_buffers, unsigned int *num_planes,
- unsigned int sizes[], struct device *alloc_devs[])
-{
- struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
- struct fimc_frame *f;
- int i;
-
- f = ctx_get_frame(ctx, vq->type);
- if (IS_ERR(f))
- return PTR_ERR(f);
- /*
- * Return number of non-contiguous planes (plane buffers)
- * depending on the configured color format.
- */
- if (!f->fmt)
- return -EINVAL;
-
- *num_planes = f->fmt->memplanes;
- for (i = 0; i < f->fmt->memplanes; i++)
- sizes[i] = f->payload[i];
- return 0;
-}
-
-static int fimc_buf_prepare(struct vb2_buffer *vb)
-{
- struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
- struct fimc_frame *frame;
- int i;
-
- frame = ctx_get_frame(ctx, vb->vb2_queue->type);
- if (IS_ERR(frame))
- return PTR_ERR(frame);
-
- for (i = 0; i < frame->fmt->memplanes; i++)
- vb2_set_plane_payload(vb, i, frame->payload[i]);
-
- return 0;
-}
-
-static void fimc_buf_queue(struct vb2_buffer *vb)
-{
- struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
- struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
- v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
-}
-
-static const struct vb2_ops fimc_qops = {
- .queue_setup = fimc_queue_setup,
- .buf_prepare = fimc_buf_prepare,
- .buf_queue = fimc_buf_queue,
- .wait_prepare = vb2_ops_wait_prepare,
- .wait_finish = vb2_ops_wait_finish,
- .stop_streaming = stop_streaming,
- .start_streaming = start_streaming,
-};
-
-/*
- * V4L2 ioctl handlers
- */
-static int fimc_m2m_querycap(struct file *file, void *fh,
- struct v4l2_capability *cap)
-{
- struct fimc_dev *fimc = video_drvdata(file);
-
- __fimc_vidioc_querycap(&fimc->pdev->dev, cap);
- return 0;
-}
-
-static int fimc_m2m_enum_fmt(struct file *file, void *priv,
- struct v4l2_fmtdesc *f)
-{
- struct fimc_fmt *fmt;
-
- fmt = fimc_find_format(NULL, NULL, get_m2m_fmt_flags(f->type),
- f->index);
- if (!fmt)
- return -EINVAL;
-
- f->pixelformat = fmt->fourcc;
- return 0;
-}
-
-static int fimc_m2m_g_fmt_mplane(struct file *file, void *fh,
- struct v4l2_format *f)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
- struct fimc_frame *frame = ctx_get_frame(ctx, f->type);
-
- if (IS_ERR(frame))
- return PTR_ERR(frame);
-
- __fimc_get_format(frame, f);
- return 0;
-}
-
-static int fimc_try_fmt_mplane(struct fimc_ctx *ctx, struct v4l2_format *f)
-{
- struct fimc_dev *fimc = ctx->fimc_dev;
- const struct fimc_variant *variant = fimc->variant;
- struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
- struct fimc_fmt *fmt;
- u32 max_w, mod_x, mod_y;
-
- if (!IS_M2M(f->type))
- return -EINVAL;
-
- fmt = fimc_find_format(&pix->pixelformat, NULL,
- get_m2m_fmt_flags(f->type), 0);
- if (WARN(fmt == NULL, "Pixel format lookup failed"))
- return -EINVAL;
-
- if (pix->field == V4L2_FIELD_ANY)
- pix->field = V4L2_FIELD_NONE;
- else if (pix->field != V4L2_FIELD_NONE)
- return -EINVAL;
-
- if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
- max_w = variant->pix_limit->scaler_dis_w;
- mod_x = ffs(variant->min_inp_pixsize) - 1;
- } else {
- max_w = variant->pix_limit->out_rot_dis_w;
- mod_x = ffs(variant->min_out_pixsize) - 1;
- }
-
- if (tiled_fmt(fmt)) {
- mod_x = 6; /* 64 x 32 pixels tile */
- mod_y = 5;
- } else {
- if (variant->min_vsize_align == 1)
- mod_y = fimc_fmt_is_rgb(fmt->color) ? 0 : 1;
- else
- mod_y = ffs(variant->min_vsize_align) - 1;
- }
-
- v4l_bound_align_image(&pix->width, 16, max_w, mod_x,
- &pix->height, 8, variant->pix_limit->scaler_dis_w, mod_y, 0);
-
- fimc_adjust_mplane_format(fmt, pix->width, pix->height, &f->fmt.pix_mp);
- return 0;
-}
-
-static int fimc_m2m_try_fmt_mplane(struct file *file, void *fh,
- struct v4l2_format *f)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
- return fimc_try_fmt_mplane(ctx, f);
-}
-
-static void __set_frame_format(struct fimc_frame *frame, struct fimc_fmt *fmt,
- struct v4l2_pix_format_mplane *pixm)
-{
- int i;
-
- for (i = 0; i < fmt->memplanes; i++) {
- frame->bytesperline[i] = pixm->plane_fmt[i].bytesperline;
- frame->payload[i] = pixm->plane_fmt[i].sizeimage;
- }
-
- frame->f_width = pixm->width;
- frame->f_height = pixm->height;
- frame->o_width = pixm->width;
- frame->o_height = pixm->height;
- frame->width = pixm->width;
- frame->height = pixm->height;
- frame->offs_h = 0;
- frame->offs_v = 0;
- frame->fmt = fmt;
-}
-
-static int fimc_m2m_s_fmt_mplane(struct file *file, void *fh,
- struct v4l2_format *f)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
- struct fimc_dev *fimc = ctx->fimc_dev;
- struct fimc_fmt *fmt;
- struct vb2_queue *vq;
- struct fimc_frame *frame;
- int ret;
-
- ret = fimc_try_fmt_mplane(ctx, f);
- if (ret)
- return ret;
-
- vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
-
- if (vb2_is_busy(vq)) {
- v4l2_err(&fimc->m2m.vfd, "queue (%d) busy\n", f->type);
- return -EBUSY;
- }
-
- if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
- frame = &ctx->s_frame;
- else
- frame = &ctx->d_frame;
-
- fmt = fimc_find_format(&f->fmt.pix_mp.pixelformat, NULL,
- get_m2m_fmt_flags(f->type), 0);
- if (!fmt)
- return -EINVAL;
-
- __set_frame_format(frame, fmt, &f->fmt.pix_mp);
-
- /* Update RGB Alpha control state and value range */
- fimc_alpha_ctrl_update(ctx);
-
- return 0;
-}
-
-static int fimc_m2m_g_selection(struct file *file, void *fh,
- struct v4l2_selection *s)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
- struct fimc_frame *frame;
-
- frame = ctx_get_frame(ctx, s->type);
- if (IS_ERR(frame))
- return PTR_ERR(frame);
-
- switch (s->target) {
- case V4L2_SEL_TGT_CROP:
- 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:
- case V4L2_SEL_TGT_COMPOSE_DEFAULT:
- case V4L2_SEL_TGT_COMPOSE_BOUNDS:
- if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
- break;
- default:
- return -EINVAL;
- }
-
- switch (s->target) {
- case V4L2_SEL_TGT_CROP:
- case V4L2_SEL_TGT_COMPOSE:
- s->r.left = frame->offs_h;
- s->r.top = frame->offs_v;
- s->r.width = frame->width;
- s->r.height = frame->height;
- break;
- case V4L2_SEL_TGT_CROP_DEFAULT:
- case V4L2_SEL_TGT_CROP_BOUNDS:
- case V4L2_SEL_TGT_COMPOSE_DEFAULT:
- case V4L2_SEL_TGT_COMPOSE_BOUNDS:
- s->r.left = 0;
- s->r.top = 0;
- s->r.width = frame->o_width;
- s->r.height = frame->o_height;
- break;
- default:
- return -EINVAL;
- }
- return 0;
-}
-
-static int fimc_m2m_try_selection(struct fimc_ctx *ctx,
- struct v4l2_selection *s)
-{
- struct fimc_dev *fimc = ctx->fimc_dev;
- struct fimc_frame *f;
- u32 min_size, halign, depth = 0;
- int i;
-
- if (s->r.top < 0 || s->r.left < 0) {
- v4l2_err(&fimc->m2m.vfd,
- "doesn't support negative values for top & left\n");
- return -EINVAL;
- }
- if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- f = &ctx->d_frame;
- if (s->target != V4L2_SEL_TGT_COMPOSE)
- return -EINVAL;
- } else if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
- f = &ctx->s_frame;
- if (s->target != V4L2_SEL_TGT_CROP)
- return -EINVAL;
- } else {
- return -EINVAL;
- }
-
- min_size = (f == &ctx->s_frame) ?
- fimc->variant->min_inp_pixsize : fimc->variant->min_out_pixsize;
-
- /* Get pixel alignment constraints. */
- if (fimc->variant->min_vsize_align == 1)
- halign = fimc_fmt_is_rgb(f->fmt->color) ? 0 : 1;
- else
- halign = ffs(fimc->variant->min_vsize_align) - 1;
-
- for (i = 0; i < f->fmt->memplanes; i++)
- depth += f->fmt->depth[i];
-
- v4l_bound_align_image(&s->r.width, min_size, f->o_width,
- ffs(min_size) - 1,
- &s->r.height, min_size, f->o_height,
- halign, 64/(ALIGN(depth, 8)));
-
- /* adjust left/top if cropping rectangle is out of bounds */
- if (s->r.left + s->r.width > f->o_width)
- s->r.left = f->o_width - s->r.width;
- if (s->r.top + s->r.height > f->o_height)
- s->r.top = f->o_height - s->r.height;
-
- s->r.left = round_down(s->r.left, min_size);
- s->r.top = round_down(s->r.top, fimc->variant->hor_offs_align);
-
- dbg("l:%d, t:%d, w:%d, h:%d, f_w: %d, f_h: %d",
- s->r.left, s->r.top, s->r.width, s->r.height,
- f->f_width, f->f_height);
-
- return 0;
-}
-
-static int fimc_m2m_s_selection(struct file *file, void *fh,
- struct v4l2_selection *s)
-{
- struct fimc_ctx *ctx = fh_to_ctx(fh);
- struct fimc_dev *fimc = ctx->fimc_dev;
- struct fimc_frame *f;
- int ret;
-
- ret = fimc_m2m_try_selection(ctx, s);
- if (ret)
- return ret;
-
- f = (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) ?
- &ctx->s_frame : &ctx->d_frame;
-
- /* Check to see if scaling ratio is within supported range */
- if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
- ret = fimc_check_scaler_ratio(ctx, s->r.width,
- s->r.height, ctx->d_frame.width,
- ctx->d_frame.height, ctx->rotation);
- } else {
- ret = fimc_check_scaler_ratio(ctx, ctx->s_frame.width,
- ctx->s_frame.height, s->r.width,
- s->r.height, ctx->rotation);
- }
- if (ret) {
- v4l2_err(&fimc->m2m.vfd, "Out of scaler range\n");
- return -EINVAL;
- }
-
- f->offs_h = s->r.left;
- f->offs_v = s->r.top;
- f->width = s->r.width;
- f->height = s->r.height;
-
- fimc_ctx_state_set(FIMC_PARAMS, ctx);
-
- return 0;
-}
-
-static const struct v4l2_ioctl_ops fimc_m2m_ioctl_ops = {
- .vidioc_querycap = fimc_m2m_querycap,
- .vidioc_enum_fmt_vid_cap = fimc_m2m_enum_fmt,
- .vidioc_enum_fmt_vid_out = fimc_m2m_enum_fmt,
- .vidioc_g_fmt_vid_cap_mplane = fimc_m2m_g_fmt_mplane,
- .vidioc_g_fmt_vid_out_mplane = fimc_m2m_g_fmt_mplane,
- .vidioc_try_fmt_vid_cap_mplane = fimc_m2m_try_fmt_mplane,
- .vidioc_try_fmt_vid_out_mplane = fimc_m2m_try_fmt_mplane,
- .vidioc_s_fmt_vid_cap_mplane = fimc_m2m_s_fmt_mplane,
- .vidioc_s_fmt_vid_out_mplane = fimc_m2m_s_fmt_mplane,
- .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_expbuf = v4l2_m2m_ioctl_expbuf,
- .vidioc_streamon = v4l2_m2m_ioctl_streamon,
- .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
- .vidioc_g_selection = fimc_m2m_g_selection,
- .vidioc_s_selection = fimc_m2m_s_selection,
-
-};
-
-static int queue_init(void *priv, struct vb2_queue *src_vq,
- struct vb2_queue *dst_vq)
-{
- struct fimc_ctx *ctx = priv;
- int ret;
-
- src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
- src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
- src_vq->drv_priv = ctx;
- src_vq->ops = &fimc_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->fimc_dev->lock;
- src_vq->dev = &ctx->fimc_dev->pdev->dev;
-
- ret = vb2_queue_init(src_vq);
- if (ret)
- return ret;
-
- dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
- dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
- dst_vq->drv_priv = ctx;
- dst_vq->ops = &fimc_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->fimc_dev->lock;
- dst_vq->dev = &ctx->fimc_dev->pdev->dev;
-
- return vb2_queue_init(dst_vq);
-}
-
-static int fimc_m2m_set_default_format(struct fimc_ctx *ctx)
-{
- struct v4l2_pix_format_mplane pixm = {
- .pixelformat = V4L2_PIX_FMT_RGB32,
- .width = 800,
- .height = 600,
- .plane_fmt[0] = {
- .bytesperline = 800 * 4,
- .sizeimage = 800 * 4 * 600,
- },
- };
- struct fimc_fmt *fmt;
-
- fmt = fimc_find_format(&pixm.pixelformat, NULL, FMT_FLAGS_M2M, 0);
- if (!fmt)
- return -EINVAL;
-
- __set_frame_format(&ctx->s_frame, fmt, &pixm);
- __set_frame_format(&ctx->d_frame, fmt, &pixm);
-
- return 0;
-}
-
-static int fimc_m2m_open(struct file *file)
-{
- struct fimc_dev *fimc = video_drvdata(file);
- struct fimc_ctx *ctx;
- int ret = -EBUSY;
-
- pr_debug("pid: %d, state: %#lx\n", task_pid_nr(current), fimc->state);
-
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
- /*
- * Don't allow simultaneous open() of the mem-to-mem and the
- * capture video node that belong to same FIMC IP instance.
- */
- if (test_bit(ST_CAPT_BUSY, &fimc->state))
- goto unlock;
-
- ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
- if (!ctx) {
- ret = -ENOMEM;
- goto unlock;
- }
- v4l2_fh_init(&ctx->fh, &fimc->m2m.vfd);
- ctx->fimc_dev = fimc;
-
- /* Default color format */
- ctx->s_frame.fmt = fimc_get_format(0);
- ctx->d_frame.fmt = fimc_get_format(0);
-
- ret = fimc_ctrls_create(ctx);
- if (ret)
- goto error_fh;
-
- /* Use separate control handler per file handle */
- ctx->fh.ctrl_handler = &ctx->ctrls.handler;
- file->private_data = &ctx->fh;
- v4l2_fh_add(&ctx->fh);
-
- /* Setup the device context for memory-to-memory mode */
- ctx->state = FIMC_CTX_M2M;
- ctx->flags = 0;
- ctx->in_path = FIMC_IO_DMA;
- ctx->out_path = FIMC_IO_DMA;
- ctx->scaler.enabled = 1;
-
- ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(fimc->m2m.m2m_dev, ctx, queue_init);
- if (IS_ERR(ctx->fh.m2m_ctx)) {
- ret = PTR_ERR(ctx->fh.m2m_ctx);
- goto error_c;
- }
-
- if (fimc->m2m.refcnt++ == 0)
- set_bit(ST_M2M_RUN, &fimc->state);
-
- ret = fimc_m2m_set_default_format(ctx);
- if (ret < 0)
- goto error_m2m_ctx;
-
- mutex_unlock(&fimc->lock);
- return 0;
-
-error_m2m_ctx:
- v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
-error_c:
- fimc_ctrls_delete(ctx);
- v4l2_fh_del(&ctx->fh);
-error_fh:
- v4l2_fh_exit(&ctx->fh);
- kfree(ctx);
-unlock:
- mutex_unlock(&fimc->lock);
- return ret;
-}
-
-static int fimc_m2m_release(struct file *file)
-{
- struct fimc_ctx *ctx = fh_to_ctx(file->private_data);
- struct fimc_dev *fimc = ctx->fimc_dev;
-
- dbg("pid: %d, state: 0x%lx, refcnt= %d",
- task_pid_nr(current), fimc->state, fimc->m2m.refcnt);
-
- mutex_lock(&fimc->lock);
-
- v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
- fimc_ctrls_delete(ctx);
- v4l2_fh_del(&ctx->fh);
- v4l2_fh_exit(&ctx->fh);
-
- if (--fimc->m2m.refcnt <= 0)
- clear_bit(ST_M2M_RUN, &fimc->state);
- kfree(ctx);
-
- mutex_unlock(&fimc->lock);
- return 0;
-}
-
-static const struct v4l2_file_operations fimc_m2m_fops = {
- .owner = THIS_MODULE,
- .open = fimc_m2m_open,
- .release = fimc_m2m_release,
- .poll = v4l2_m2m_fop_poll,
- .unlocked_ioctl = video_ioctl2,
- .mmap = v4l2_m2m_fop_mmap,
-};
-
-static const struct v4l2_m2m_ops m2m_ops = {
- .device_run = fimc_device_run,
- .job_abort = fimc_job_abort,
-};
-
-int fimc_register_m2m_device(struct fimc_dev *fimc,
- struct v4l2_device *v4l2_dev)
-{
- struct video_device *vfd = &fimc->m2m.vfd;
- int ret;
-
- fimc->v4l2_dev = v4l2_dev;
-
- memset(vfd, 0, sizeof(*vfd));
- vfd->fops = &fimc_m2m_fops;
- vfd->ioctl_ops = &fimc_m2m_ioctl_ops;
- vfd->v4l2_dev = v4l2_dev;
- vfd->minor = -1;
- vfd->release = video_device_release_empty;
- vfd->lock = &fimc->lock;
- vfd->vfl_dir = VFL_DIR_M2M;
- vfd->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M_MPLANE;
- set_bit(V4L2_FL_QUIRK_INVERTED_CROP, &vfd->flags);
-
- snprintf(vfd->name, sizeof(vfd->name), "fimc.%d.m2m", fimc->id);
- video_set_drvdata(vfd, fimc);
-
- fimc->m2m.m2m_dev = v4l2_m2m_init(&m2m_ops);
- if (IS_ERR(fimc->m2m.m2m_dev)) {
- v4l2_err(v4l2_dev, "failed to initialize v4l2-m2m device\n");
- return PTR_ERR(fimc->m2m.m2m_dev);
- }
-
- ret = media_entity_pads_init(&vfd->entity, 0, NULL);
- if (ret)
- goto err_me;
-
- ret = video_register_device(vfd, VFL_TYPE_VIDEO, -1);
- if (ret)
- goto err_vd;
-
- v4l2_info(v4l2_dev, "Registered %s as /dev/%s\n",
- vfd->name, video_device_node_name(vfd));
- return 0;
-
-err_vd:
- media_entity_cleanup(&vfd->entity);
-err_me:
- v4l2_m2m_release(fimc->m2m.m2m_dev);
- return ret;
-}
-
-void fimc_unregister_m2m_device(struct fimc_dev *fimc)
-{
- if (!fimc)
- return;
-
- if (fimc->m2m.m2m_dev)
- v4l2_m2m_release(fimc->m2m.m2m_dev);
-
- if (video_is_registered(&fimc->m2m.vfd)) {
- video_unregister_device(&fimc->m2m.vfd);
- media_entity_cleanup(&fimc->m2m.vfd.entity);
- }
-}