Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Samsung S5P/EXYNOS4 SoC series camera interface (camera capture) driver
 *
 * Copyright (C) 2010 - 2012 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/pm_runtime.h>
#include <linux/list.h>
#include <linux/slab.h>
 
#include <linux/videodev2.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-mem2mem.h>
#include <media/v4l2-rect.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 int fimc_capture_hw_init(struct fimc_dev *fimc)
{
<------>struct fimc_source_info *si = &fimc->vid_cap.source_config;
<------>struct fimc_ctx *ctx = fimc->vid_cap.ctx;
<------>int ret;
<------>unsigned long flags;
 
<------>if (ctx == NULL || ctx->s_frame.fmt == NULL)
<------><------>return -EINVAL;
 
<------>if (si->fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK) {
<------><------>ret = fimc_hw_camblk_cfg_writeback(fimc);
<------><------>if (ret < 0)
<------><------><------>return ret;
<------>}
 
<------>spin_lock_irqsave(&fimc->slock, flags);
<------>fimc_prepare_dma_offset(ctx, &ctx->d_frame);
<------>fimc_set_yuv_order(ctx);
 
<------>fimc_hw_set_camera_polarity(fimc, si);
<------>fimc_hw_set_camera_type(fimc, si);
<------>fimc_hw_set_camera_source(fimc, si);
<------>fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
 
<------>ret = fimc_set_scaler_info(ctx);
<------>if (!ret) {
<------><------>fimc_hw_set_input_path(ctx);
<------><------>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_output_path(ctx);
<------><------>fimc_hw_set_out_dma(ctx);
<------><------>if (fimc->drv_data->alpha_color)
<------><------><------>fimc_hw_set_rgb_alpha(ctx);
<------><------>clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
<------>}
<------>spin_unlock_irqrestore(&fimc->slock, flags);
<------>return ret;
}
 
/*
 * Reinitialize the driver so it is ready to start the streaming again.
 * Set fimc->state to indicate stream off and the hardware shut down state.
 * If not suspending (@suspend is false), return any buffers to videobuf2.
 * Otherwise put any owned buffers onto the pending buffers queue, so they
 * can be re-spun when the device is being resumed. Also perform FIMC
 * software reset and disable streaming on the whole pipeline if required.
 */
static int fimc_capture_state_cleanup(struct fimc_dev *fimc, bool suspend)
{
<------>struct fimc_vid_cap *cap = &fimc->vid_cap;
<------>struct fimc_vid_buffer *buf;
<------>unsigned long flags;
<------>bool streaming;
 
<------>spin_lock_irqsave(&fimc->slock, flags);
<------>streaming = fimc->state & (1 << ST_CAPT_ISP_STREAM);
 
<------>fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_SHUT |
<------><------><------> 1 << ST_CAPT_STREAM | 1 << ST_CAPT_ISP_STREAM);
<------>if (suspend)
<------><------>fimc->state |= (1 << ST_CAPT_SUSPENDED);
<------>else
<------><------>fimc->state &= ~(1 << ST_CAPT_PEND | 1 << ST_CAPT_SUSPENDED);
 
<------>/* Release unused buffers */
<------>while (!suspend && !list_empty(&cap->pending_buf_q)) {
<------><------>buf = fimc_pending_queue_pop(cap);
<------><------>vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
<------>}
<------>/* If suspending put unused buffers onto pending queue */
<------>while (!list_empty(&cap->active_buf_q)) {
<------><------>buf = fimc_active_queue_pop(cap);
<------><------>if (suspend)
<------><------><------>fimc_pending_queue_add(cap, buf);
<------><------>else
<------><------><------>vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
<------>}
 
<------>fimc_hw_reset(fimc);
<------>cap->buf_index = 0;
 
<------>spin_unlock_irqrestore(&fimc->slock, flags);
 
<------>if (streaming)
<------><------>return fimc_pipeline_call(&cap->ve, set_stream, 0);
<------>else
<------><------>return 0;
}
 
static int fimc_stop_capture(struct fimc_dev *fimc, bool suspend)
{
<------>unsigned long flags;
 
<------>if (!fimc_capture_active(fimc))
<------><------>return 0;
 
<------>spin_lock_irqsave(&fimc->slock, flags);
<------>set_bit(ST_CAPT_SHUT, &fimc->state);
<------>fimc_deactivate_capture(fimc);
<------>spin_unlock_irqrestore(&fimc->slock, flags);
 
<------>wait_event_timeout(fimc->irq_queue,
<------><------><------>   !test_bit(ST_CAPT_SHUT, &fimc->state),
<------><------><------>   (2*HZ/10)); /* 200 ms */
 
<------>return fimc_capture_state_cleanup(fimc, suspend);
}
 
/**
 * fimc_capture_config_update - apply the camera interface configuration
 * @ctx: FIMC capture context
 *
 * To be called from within the interrupt handler with fimc.slock
 * spinlock held. It updates the camera pixel crop, rotation and
 * image flip in H/W.
 */
static int fimc_capture_config_update(struct fimc_ctx *ctx)
{
<------>struct fimc_dev *fimc = ctx->fimc_dev;
<------>int ret;
 
<------>fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
 
<------>ret = fimc_set_scaler_info(ctx);
<------>if (ret)
<------><------>return ret;
 
<------>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_prepare_dma_offset(ctx, &ctx->d_frame);
<------>fimc_hw_set_out_dma(ctx);
<------>if (fimc->drv_data->alpha_color)
<------><------>fimc_hw_set_rgb_alpha(ctx);
 
<------>clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
<------>return ret;
}
 
void fimc_capture_irq_handler(struct fimc_dev *fimc, int deq_buf)
{
<------>struct fimc_vid_cap *cap = &fimc->vid_cap;
<------>struct fimc_pipeline *p = to_fimc_pipeline(cap->ve.pipe);
<------>struct v4l2_subdev *csis = p->subdevs[IDX_CSIS];
<------>struct fimc_frame *f = &cap->ctx->d_frame;
<------>struct fimc_vid_buffer *v_buf;
 
<------>if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) {
<------><------>wake_up(&fimc->irq_queue);
<------><------>goto done;
<------>}
 
<------>if (!list_empty(&cap->active_buf_q) &&
<------>    test_bit(ST_CAPT_RUN, &fimc->state) && deq_buf) {
<------><------>v_buf = fimc_active_queue_pop(cap);
 
<------><------>v_buf->vb.vb2_buf.timestamp = ktime_get_ns();
<------><------>v_buf->vb.sequence = cap->frame_count++;
 
<------><------>vb2_buffer_done(&v_buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
<------>}
 
<------>if (!list_empty(&cap->pending_buf_q)) {
 
<------><------>v_buf = fimc_pending_queue_pop(cap);
<------><------>fimc_hw_set_output_addr(fimc, &v_buf->paddr, cap->buf_index);
<------><------>v_buf->index = cap->buf_index;
 
<------><------>/* Move the buffer to the capture active queue */
<------><------>fimc_active_queue_add(cap, v_buf);
 
<------><------>dbg("next frame: %d, done frame: %d",
<------><------>    fimc_hw_get_frame_index(fimc), v_buf->index);
 
<------><------>if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
<------><------><------>cap->buf_index = 0;
<------>}
<------>/*
<------> * Set up a buffer at MIPI-CSIS if current image format
<------> * requires the frame embedded data capture.
<------> */
<------>if (f->fmt->mdataplanes && !list_empty(&cap->active_buf_q)) {
<------><------>unsigned int plane = ffs(f->fmt->mdataplanes) - 1;
<------><------>unsigned int size = f->payload[plane];
<------><------>s32 index = fimc_hw_get_frame_index(fimc);
<------><------>void *vaddr;
 
<------><------>list_for_each_entry(v_buf, &cap->active_buf_q, list) {
<------><------><------>if (v_buf->index != index)
<------><------><------><------>continue;
<------><------><------>vaddr = vb2_plane_vaddr(&v_buf->vb.vb2_buf, plane);
<------><------><------>v4l2_subdev_call(csis, video, s_rx_buffer,
<------><------><------><------><------> vaddr, &size);
<------><------><------>break;
<------><------>}
<------>}
 
<------>if (cap->active_buf_cnt == 0) {
<------><------>if (deq_buf)
<------><------><------>clear_bit(ST_CAPT_RUN, &fimc->state);
 
<------><------>if (++cap->buf_index >= FIMC_MAX_OUT_BUFS)
<------><------><------>cap->buf_index = 0;
<------>} else {
<------><------>set_bit(ST_CAPT_RUN, &fimc->state);
<------>}
 
<------>if (test_bit(ST_CAPT_APPLY_CFG, &fimc->state))
<------><------>fimc_capture_config_update(cap->ctx);
done:
<------>if (cap->active_buf_cnt == 1) {
<------><------>fimc_deactivate_capture(fimc);
<------><------>clear_bit(ST_CAPT_STREAM, &fimc->state);
<------>}
 
<------>dbg("frame: %d, active_buf_cnt: %d",
<------>    fimc_hw_get_frame_index(fimc), cap->active_buf_cnt);
}
 
 
static int start_streaming(struct vb2_queue *q, unsigned int count)
{
<------>struct fimc_ctx *ctx = q->drv_priv;
<------>struct fimc_dev *fimc = ctx->fimc_dev;
<------>struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
<------>int min_bufs;
<------>int ret;
 
<------>vid_cap->frame_count = 0;
 
<------>ret = fimc_capture_hw_init(fimc);
<------>if (ret) {
<------><------>fimc_capture_state_cleanup(fimc, false);
<------><------>return ret;
<------>}
 
<------>set_bit(ST_CAPT_PEND, &fimc->state);
 
<------>min_bufs = fimc->vid_cap.reqbufs_count > 1 ? 2 : 1;
 
<------>if (vid_cap->active_buf_cnt >= min_bufs &&
<------>    !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
<------><------>fimc_activate_capture(ctx);
 
<------><------>if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
<------><------><------>return fimc_pipeline_call(&vid_cap->ve, set_stream, 1);
<------>}
 
<------>return 0;
}
 
static void stop_streaming(struct vb2_queue *q)
{
<------>struct fimc_ctx *ctx = q->drv_priv;
<------>struct fimc_dev *fimc = ctx->fimc_dev;
 
<------>if (!fimc_capture_active(fimc))
<------><------>return;
 
<------>fimc_stop_capture(fimc, false);
}
 
int fimc_capture_suspend(struct fimc_dev *fimc)
{
<------>bool suspend = fimc_capture_busy(fimc);
 
<------>int ret = fimc_stop_capture(fimc, suspend);
<------>if (ret)
<------><------>return ret;
<------>return fimc_pipeline_call(&fimc->vid_cap.ve, close);
}
 
static void buffer_queue(struct vb2_buffer *vb);
 
int fimc_capture_resume(struct fimc_dev *fimc)
{
<------>struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
<------>struct exynos_video_entity *ve = &vid_cap->ve;
<------>struct fimc_vid_buffer *buf;
<------>int i;
 
<------>if (!test_and_clear_bit(ST_CAPT_SUSPENDED, &fimc->state))
<------><------>return 0;
 
<------>INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q);
<------>vid_cap->buf_index = 0;
<------>fimc_pipeline_call(ve, open, &ve->vdev.entity, false);
<------>fimc_capture_hw_init(fimc);
 
<------>clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
 
<------>for (i = 0; i < vid_cap->reqbufs_count; i++) {
<------><------>if (list_empty(&vid_cap->pending_buf_q))
<------><------><------>break;
<------><------>buf = fimc_pending_queue_pop(vid_cap);
<------><------>buffer_queue(&buf->vb.vb2_buf);
<------>}
<------>return 0;
 
}
 
static int 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 = vq->drv_priv;
<------>struct fimc_frame *frame = &ctx->d_frame;
<------>struct fimc_fmt *fmt = frame->fmt;
<------>unsigned long wh = frame->f_width * frame->f_height;
<------>int i;
 
<------>if (fmt == NULL)
<------><------>return -EINVAL;
 
<------>if (*num_planes) {
<------><------>if (*num_planes != fmt->memplanes)
<------><------><------>return -EINVAL;
<------><------>for (i = 0; i < *num_planes; i++)
<------><------><------>if (sizes[i] < (wh * fmt->depth[i]) / 8)
<------><------><------><------>return -EINVAL;
<------><------>return 0;
<------>}
 
<------>*num_planes = fmt->memplanes;
 
<------>for (i = 0; i < fmt->memplanes; i++) {
<------><------>unsigned int size = (wh * fmt->depth[i]) / 8;
 
<------><------>if (fimc_fmt_is_user_defined(fmt->color))
<------><------><------>sizes[i] = frame->payload[i];
<------><------>else
<------><------><------>sizes[i] = max_t(u32, size, frame->payload[i]);
<------>}
 
<------>return 0;
}
 
static int buffer_prepare(struct vb2_buffer *vb)
{
<------>struct vb2_queue *vq = vb->vb2_queue;
<------>struct fimc_ctx *ctx = vq->drv_priv;
<------>int i;
 
<------>if (ctx->d_frame.fmt == NULL)
<------><------>return -EINVAL;
 
<------>for (i = 0; i < ctx->d_frame.fmt->memplanes; i++) {
<------><------>unsigned long size = ctx->d_frame.payload[i];
 
<------><------>if (vb2_plane_size(vb, i) < size) {
<------><------><------>v4l2_err(&ctx->fimc_dev->vid_cap.ve.vdev,
<------><------><------><------> "User buffer too small (%ld < %ld)\n",
<------><------><------><------> vb2_plane_size(vb, i), size);
<------><------><------>return -EINVAL;
<------><------>}
<------><------>vb2_set_plane_payload(vb, i, size);
<------>}
 
<------>return 0;
}
 
static void buffer_queue(struct vb2_buffer *vb)
{
<------>struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
<------>struct fimc_vid_buffer *buf
<------><------>= container_of(vbuf, struct fimc_vid_buffer, vb);
<------>struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
<------>struct fimc_dev *fimc = ctx->fimc_dev;
<------>struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
<------>struct exynos_video_entity *ve = &vid_cap->ve;
<------>unsigned long flags;
<------>int min_bufs;
 
<------>spin_lock_irqsave(&fimc->slock, flags);
<------>fimc_prepare_addr(ctx, &buf->vb.vb2_buf, &ctx->d_frame, &buf->paddr);
 
<------>if (!test_bit(ST_CAPT_SUSPENDED, &fimc->state) &&
<------>    !test_bit(ST_CAPT_STREAM, &fimc->state) &&
<------>    vid_cap->active_buf_cnt < FIMC_MAX_OUT_BUFS) {
<------><------>/* Setup the buffer directly for processing. */
<------><------>int buf_id = (vid_cap->reqbufs_count == 1) ? -1 :
<------><------><------><------>vid_cap->buf_index;
 
<------><------>fimc_hw_set_output_addr(fimc, &buf->paddr, buf_id);
<------><------>buf->index = vid_cap->buf_index;
<------><------>fimc_active_queue_add(vid_cap, buf);
 
<------><------>if (++vid_cap->buf_index >= FIMC_MAX_OUT_BUFS)
<------><------><------>vid_cap->buf_index = 0;
<------>} else {
<------><------>fimc_pending_queue_add(vid_cap, buf);
<------>}
 
<------>min_bufs = vid_cap->reqbufs_count > 1 ? 2 : 1;
 
 
<------>if (vb2_is_streaming(&vid_cap->vbq) &&
<------>    vid_cap->active_buf_cnt >= min_bufs &&
<------>    !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
<------><------>int ret;
 
<------><------>fimc_activate_capture(ctx);
<------><------>spin_unlock_irqrestore(&fimc->slock, flags);
 
<------><------>if (test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
<------><------><------>return;
 
<------><------>ret = fimc_pipeline_call(ve, set_stream, 1);
<------><------>if (ret < 0)
<------><------><------>v4l2_err(&ve->vdev, "stream on failed: %d\n", ret);
<------><------>return;
<------>}
<------>spin_unlock_irqrestore(&fimc->slock, flags);
}
 
static const struct vb2_ops fimc_capture_qops = {
<------>.queue_setup		= queue_setup,
<------>.buf_prepare		= buffer_prepare,
<------>.buf_queue		= buffer_queue,
<------>.wait_prepare		= vb2_ops_wait_prepare,
<------>.wait_finish		= vb2_ops_wait_finish,
<------>.start_streaming	= start_streaming,
<------>.stop_streaming		= stop_streaming,
};
 
static int fimc_capture_set_default_format(struct fimc_dev *fimc);
 
static int fimc_capture_open(struct file *file)
{
<------>struct fimc_dev *fimc = video_drvdata(file);
<------>struct fimc_vid_cap *vc = &fimc->vid_cap;
<------>struct exynos_video_entity *ve = &vc->ve;
<------>int ret = -EBUSY;
 
<------>dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
 
<------>mutex_lock(&fimc->lock);
 
<------>if (fimc_m2m_active(fimc))
<------><------>goto unlock;
 
<------>set_bit(ST_CAPT_BUSY, &fimc->state);
<------>ret = pm_runtime_resume_and_get(&fimc->pdev->dev);
<------>if (ret < 0)
<------><------>goto unlock;
 
<------>ret = v4l2_fh_open(file);
<------>if (ret) {
<------><------>pm_runtime_put_sync(&fimc->pdev->dev);
<------><------>goto unlock;
<------>}
 
<------>if (v4l2_fh_is_singular_file(file)) {
<------><------>fimc_md_graph_lock(ve);
 
<------><------>ret = fimc_pipeline_call(ve, open, &ve->vdev.entity, true);
 
<------><------>if (ret == 0)
<------><------><------>ve->vdev.entity.use_count++;
 
<------><------>fimc_md_graph_unlock(ve);
 
<------><------>if (ret == 0)
<------><------><------>ret = fimc_capture_set_default_format(fimc);
 
<------><------>if (ret < 0) {
<------><------><------>clear_bit(ST_CAPT_BUSY, &fimc->state);
<------><------><------>pm_runtime_put_sync(&fimc->pdev->dev);
<------><------><------>v4l2_fh_release(file);
<------><------>}
<------>}
unlock:
<------>mutex_unlock(&fimc->lock);
<------>return ret;
}
 
static int fimc_capture_release(struct file *file)
{
<------>struct fimc_dev *fimc = video_drvdata(file);
<------>struct fimc_vid_cap *vc = &fimc->vid_cap;
<------>bool close = v4l2_fh_is_singular_file(file);
<------>int ret;
 
<------>dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
 
<------>mutex_lock(&fimc->lock);
 
<------>if (close && vc->streaming) {
<------><------>media_pipeline_stop(&vc->ve.vdev.entity);
<------><------>vc->streaming = false;
<------>}
 
<------>ret = _vb2_fop_release(file, NULL);
 
<------>if (close) {
<------><------>clear_bit(ST_CAPT_BUSY, &fimc->state);
<------><------>fimc_pipeline_call(&vc->ve, close);
<------><------>clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
 
<------><------>fimc_md_graph_lock(&vc->ve);
<------><------>vc->ve.vdev.entity.use_count--;
<------><------>fimc_md_graph_unlock(&vc->ve);
<------>}
 
<------>pm_runtime_put_sync(&fimc->pdev->dev);
<------>mutex_unlock(&fimc->lock);
 
<------>return ret;
}
 
static const struct v4l2_file_operations fimc_capture_fops = {
<------>.owner		= THIS_MODULE,
<------>.open		= fimc_capture_open,
<------>.release	= fimc_capture_release,
<------>.poll		= vb2_fop_poll,
<------>.unlocked_ioctl	= video_ioctl2,
<------>.mmap		= vb2_fop_mmap,
};
 
/*
 * Format and crop negotiation helpers
 */
 
static struct fimc_fmt *fimc_capture_try_format(struct fimc_ctx *ctx,
<------><------><------><------><------><------>u32 *width, u32 *height,
<------><------><------><------><------><------>u32 *code, u32 *fourcc, int pad)
{
<------>bool rotation = ctx->rotation == 90 || ctx->rotation == 270;
<------>struct fimc_dev *fimc = ctx->fimc_dev;
<------>const struct fimc_variant *var = fimc->variant;
<------>const struct fimc_pix_limit *pl = var->pix_limit;
<------>struct fimc_frame *dst = &ctx->d_frame;
<------>u32 depth, min_w, max_w, min_h, align_h = 3;
<------>u32 mask = FMT_FLAGS_CAM;
<------>struct fimc_fmt *ffmt;
 
<------>/* Conversion from/to JPEG or User Defined format is not supported */
<------>if (code && ctx->s_frame.fmt && pad == FIMC_SD_PAD_SOURCE &&
<------>    fimc_fmt_is_user_defined(ctx->s_frame.fmt->color))
<------><------>*code = ctx->s_frame.fmt->mbus_code;
 
<------>if (fourcc && *fourcc != V4L2_PIX_FMT_JPEG && pad == FIMC_SD_PAD_SOURCE)
<------><------>mask |= FMT_FLAGS_M2M;
 
<------>if (pad == FIMC_SD_PAD_SINK_FIFO)
<------><------>mask = FMT_FLAGS_WRITEBACK;
 
<------>ffmt = fimc_find_format(fourcc, code, mask, 0);
<------>if (WARN_ON(!ffmt))
<------><------>return NULL;
 
<------>if (code)
<------><------>*code = ffmt->mbus_code;
<------>if (fourcc)
<------><------>*fourcc = ffmt->fourcc;
 
<------>if (pad != FIMC_SD_PAD_SOURCE) {
<------><------>max_w = fimc_fmt_is_user_defined(ffmt->color) ?
<------><------><------>pl->scaler_dis_w : pl->scaler_en_w;
<------><------>/* Apply the camera input interface pixel constraints */
<------><------>v4l_bound_align_image(width, max_t(u32, *width, 32), max_w, 4,
<------><------><------><------>      height, max_t(u32, *height, 32),
<------><------><------><------>      FIMC_CAMIF_MAX_HEIGHT,
<------><------><------><------>      fimc_fmt_is_user_defined(ffmt->color) ?
<------><------><------><------>      3 : 1,
<------><------><------><------>      0);
<------><------>return ffmt;
<------>}
<------>/* Can't scale or crop in transparent (JPEG) transfer mode */
<------>if (fimc_fmt_is_user_defined(ffmt->color)) {
<------><------>*width  = ctx->s_frame.f_width;
<------><------>*height = ctx->s_frame.f_height;
<------><------>return ffmt;
<------>}
<------>/* Apply the scaler and the output DMA constraints */
<------>max_w = rotation ? pl->out_rot_en_w : pl->out_rot_dis_w;
<------>if (ctx->state & FIMC_COMPOSE) {
<------><------>min_w = dst->offs_h + dst->width;
<------><------>min_h = dst->offs_v + dst->height;
<------>} else {
<------><------>min_w = var->min_out_pixsize;
<------><------>min_h = var->min_out_pixsize;
<------>}
<------>if (var->min_vsize_align == 1 && !rotation)
<------><------>align_h = fimc_fmt_is_rgb(ffmt->color) ? 0 : 1;
 
<------>depth = fimc_get_format_depth(ffmt);
<------>v4l_bound_align_image(width, min_w, max_w,
<------><------><------>      ffs(var->min_out_pixsize) - 1,
<------><------><------>      height, min_h, FIMC_CAMIF_MAX_HEIGHT,
<------><------><------>      align_h,
<------><------><------>      64/(ALIGN(depth, 8)));
 
<------>dbg("pad%d: code: 0x%x, %dx%d. dst fmt: %dx%d",
<------>    pad, code ? *code : 0, *width, *height,
<------>    dst->f_width, dst->f_height);
 
<------>return ffmt;
}
 
static void fimc_capture_try_selection(struct fimc_ctx *ctx,
<------><------><------><------>       struct v4l2_rect *r,
<------><------><------><------>       int target)
{
<------>bool rotate = ctx->rotation == 90 || ctx->rotation == 270;
<------>struct fimc_dev *fimc = ctx->fimc_dev;
<------>const struct fimc_variant *var = fimc->variant;
<------>const struct fimc_pix_limit *pl = var->pix_limit;
<------>struct fimc_frame *sink = &ctx->s_frame;
<------>u32 max_w, max_h, min_w = 0, min_h = 0, min_sz;
<------>u32 align_sz = 0, align_h = 4;
<------>u32 max_sc_h, max_sc_v;
 
<------>/* In JPEG transparent transfer mode cropping is not supported */
<------>if (fimc_fmt_is_user_defined(ctx->d_frame.fmt->color)) {
<------><------>r->width  = sink->f_width;
<------><------>r->height = sink->f_height;
<------><------>r->left   = r->top = 0;
<------><------>return;
<------>}
<------>if (target == V4L2_SEL_TGT_COMPOSE) {
<------><------>u32 tmp_min_h = ffs(sink->width) - 3;
<------><------>u32 tmp_min_v = ffs(sink->height) - 1;
 
<------><------>if (ctx->rotation != 90 && ctx->rotation != 270)
<------><------><------>align_h = 1;
<------><------>max_sc_h = min(SCALER_MAX_HRATIO, 1 << tmp_min_h);
<------><------>max_sc_v = min(SCALER_MAX_VRATIO, 1 << tmp_min_v);
<------><------>min_sz = var->min_out_pixsize;
<------>} else {
<------><------>u32 depth = fimc_get_format_depth(sink->fmt);
<------><------>align_sz = 64/ALIGN(depth, 8);
<------><------>min_sz = var->min_inp_pixsize;
<------><------>min_w = min_h = min_sz;
<------><------>max_sc_h = max_sc_v = 1;
<------>}
<------>/*
<------> * For the compose rectangle the following constraints must be met:
<------> * - it must fit in the sink pad format rectangle (f_width/f_height);
<------> * - maximum downscaling ratio is 64;
<------> * - maximum crop size depends if the rotator is used or not;
<------> * - the sink pad format width/height must be 4 multiple of the
<------> *   prescaler ratios determined by sink pad size and source pad crop,
<------> *   the prescaler ratio is returned by fimc_get_scaler_factor().
<------> */
<------>max_w = min_t(u32,
<------><------>      rotate ? pl->out_rot_en_w : pl->out_rot_dis_w,
<------><------>      rotate ? sink->f_height : sink->f_width);
<------>max_h = min_t(u32, FIMC_CAMIF_MAX_HEIGHT, sink->f_height);
 
<------>if (target == V4L2_SEL_TGT_COMPOSE) {
<------><------>min_w = min_t(u32, max_w, sink->f_width / max_sc_h);
<------><------>min_h = min_t(u32, max_h, sink->f_height / max_sc_v);
<------><------>if (rotate) {
<------><------><------>swap(max_sc_h, max_sc_v);
<------><------><------>swap(min_w, min_h);
<------><------>}
<------>}
<------>v4l_bound_align_image(&r->width, min_w, max_w, ffs(min_sz) - 1,
<------><------><------>      &r->height, min_h, max_h, align_h,
<------><------><------>      align_sz);
<------>/* Adjust left/top if crop/compose rectangle is out of bounds */
<------>r->left = clamp_t(u32, r->left, 0, sink->f_width - r->width);
<------>r->top  = clamp_t(u32, r->top, 0, sink->f_height - r->height);
<------>r->left = round_down(r->left, var->hor_offs_align);
 
<------>dbg("target %#x: (%d,%d)/%dx%d, sink fmt: %dx%d",
<------>    target, r->left, r->top, r->width, r->height,
<------>    sink->f_width, sink->f_height);
}
 
/*
 * The video node ioctl operations
 */
static int fimc_cap_querycap(struct file *file, void *priv,
<------><------><------><------><------>struct v4l2_capability *cap)
{
<------>struct fimc_dev *fimc = video_drvdata(file);
 
<------>__fimc_vidioc_querycap(&fimc->pdev->dev, cap);
<------>return 0;
}
 
static int fimc_cap_enum_fmt(struct file *file, void *priv,
<------><------><------>     struct v4l2_fmtdesc *f)
{
<------>struct fimc_fmt *fmt;
 
<------>fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM | FMT_FLAGS_M2M,
<------><------><------>       f->index);
<------>if (!fmt)
<------><------>return -EINVAL;
<------>f->pixelformat = fmt->fourcc;
<------>return 0;
}
 
static struct media_entity *fimc_pipeline_get_head(struct media_entity *me)
{
<------>struct media_pad *pad = &me->pads[0];
 
<------>while (!(pad->flags & MEDIA_PAD_FL_SOURCE)) {
<------><------>pad = media_entity_remote_pad(pad);
<------><------>if (!pad)
<------><------><------>break;
<------><------>me = pad->entity;
<------><------>pad = &me->pads[0];
<------>}
 
<------>return me;
}
 
/**
 * fimc_pipeline_try_format - negotiate and/or set formats at pipeline
 *                            elements
 * @ctx: FIMC capture context
 * @tfmt: media bus format to try/set on subdevs
 * @fmt_id: fimc pixel format id corresponding to returned @tfmt (output)
 * @set: true to set format on subdevs, false to try only
 */
static int fimc_pipeline_try_format(struct fimc_ctx *ctx,
<------><------><------><------>    struct v4l2_mbus_framefmt *tfmt,
<------><------><------><------>    struct fimc_fmt **fmt_id,
<------><------><------><------>    bool set)
{
<------>struct fimc_dev *fimc = ctx->fimc_dev;
<------>struct fimc_pipeline *p = to_fimc_pipeline(fimc->vid_cap.ve.pipe);
<------>struct v4l2_subdev *sd = p->subdevs[IDX_SENSOR];
<------>struct v4l2_subdev_format sfmt;
<------>struct v4l2_mbus_framefmt *mf = &sfmt.format;
<------>struct media_entity *me;
<------>struct fimc_fmt *ffmt;
<------>struct media_pad *pad;
<------>int ret, i = 1;
<------>u32 fcc;
 
<------>if (WARN_ON(!sd || !tfmt))
<------><------>return -EINVAL;
 
<------>memset(&sfmt, 0, sizeof(sfmt));
<------>sfmt.format = *tfmt;
<------>sfmt.which = set ? V4L2_SUBDEV_FORMAT_ACTIVE : V4L2_SUBDEV_FORMAT_TRY;
 
<------>me = fimc_pipeline_get_head(&sd->entity);
 
<------>while (1) {
<------><------>ffmt = fimc_find_format(NULL, mf->code != 0 ? &mf->code : NULL,
<------><------><------><------><------>FMT_FLAGS_CAM, i++);
<------><------>if (ffmt == NULL) {
<------><------><------>/*
<------><------><------> * Notify user-space if common pixel code for
<------><------><------> * host and sensor does not exist.
<------><------><------> */
<------><------><------>return -EINVAL;
<------><------>}
<------><------>mf->code = tfmt->code = ffmt->mbus_code;
 
<------><------>/* set format on all pipeline subdevs */
<------><------>while (me != &fimc->vid_cap.subdev.entity) {
<------><------><------>sd = media_entity_to_v4l2_subdev(me);
 
<------><------><------>sfmt.pad = 0;
<------><------><------>ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &sfmt);
<------><------><------>if (ret)
<------><------><------><------>return ret;
 
<------><------><------>if (me->pads[0].flags & MEDIA_PAD_FL_SINK) {
<------><------><------><------>sfmt.pad = me->num_pads - 1;
<------><------><------><------>mf->code = tfmt->code;
<------><------><------><------>ret = v4l2_subdev_call(sd, pad, set_fmt, NULL,
<------><------><------><------><------><------><------><------><------>&sfmt);
<------><------><------><------>if (ret)
<------><------><------><------><------>return ret;
<------><------><------>}
 
<------><------><------>pad = media_entity_remote_pad(&me->pads[sfmt.pad]);
<------><------><------>if (!pad)
<------><------><------><------>return -EINVAL;
<------><------><------>me = pad->entity;
<------><------>}
 
<------><------>if (mf->code != tfmt->code)
<------><------><------>continue;
 
<------><------>fcc = ffmt->fourcc;
<------><------>tfmt->width  = mf->width;
<------><------>tfmt->height = mf->height;
<------><------>ffmt = fimc_capture_try_format(ctx, &tfmt->width, &tfmt->height,
<------><------><------><------><------>NULL, &fcc, FIMC_SD_PAD_SINK_CAM);
<------><------>ffmt = fimc_capture_try_format(ctx, &tfmt->width, &tfmt->height,
<------><------><------><------><------>NULL, &fcc, FIMC_SD_PAD_SOURCE);
<------><------>if (ffmt && ffmt->mbus_code)
<------><------><------>mf->code = ffmt->mbus_code;
<------><------>if (mf->width != tfmt->width || mf->height != tfmt->height)
<------><------><------>continue;
<------><------>tfmt->code = mf->code;
<------><------>break;
<------>}
 
<------>if (fmt_id && ffmt)
<------><------>*fmt_id = ffmt;
<------>*tfmt = *mf;
 
<------>return 0;
}
 
/**
 * fimc_get_sensor_frame_desc - query the sensor for media bus frame parameters
 * @sensor: pointer to the sensor subdev
 * @plane_fmt: provides plane sizes corresponding to the frame layout entries
 * @num_planes: number of planes
 * @try: true to set the frame parameters, false to query only
 *
 * This function is used by this driver only for compressed/blob data formats.
 */
static int fimc_get_sensor_frame_desc(struct v4l2_subdev *sensor,
<------><------><------><------>      struct v4l2_plane_pix_format *plane_fmt,
<------><------><------><------>      unsigned int num_planes, bool try)
{
<------>struct v4l2_mbus_frame_desc fd;
<------>int i, ret;
<------>int pad;
 
<------>for (i = 0; i < num_planes; i++)
<------><------>fd.entry[i].length = plane_fmt[i].sizeimage;
 
<------>pad = sensor->entity.num_pads - 1;
<------>if (try)
<------><------>ret = v4l2_subdev_call(sensor, pad, set_frame_desc, pad, &fd);
<------>else
<------><------>ret = v4l2_subdev_call(sensor, pad, get_frame_desc, pad, &fd);
 
<------>if (ret < 0)
<------><------>return ret;
 
<------>if (num_planes != fd.num_entries)
<------><------>return -EINVAL;
 
<------>for (i = 0; i < num_planes; i++)
<------><------>plane_fmt[i].sizeimage = fd.entry[i].length;
 
<------>if (fd.entry[0].length > FIMC_MAX_JPEG_BUF_SIZE) {
<------><------>v4l2_err(sensor->v4l2_dev,  "Unsupported buffer size: %u\n",
<------><------><------> fd.entry[0].length);
 
<------><------>return -EINVAL;
<------>}
 
<------>return 0;
}
 
static int fimc_cap_g_fmt_mplane(struct file *file, void *fh,
<------><------><------><------> struct v4l2_format *f)
{
<------>struct fimc_dev *fimc = video_drvdata(file);
 
<------>__fimc_get_format(&fimc->vid_cap.ctx->d_frame, f);
<------>return 0;
}
 
/*
 * Try or set format on the fimc.X.capture video node and additionally
 * on the whole pipeline if @try is false.
 * Locking: the caller must _not_ hold the graph mutex.
 */
static int __video_try_or_set_format(struct fimc_dev *fimc,
<------><------><------><------>     struct v4l2_format *f, bool try,
<------><------><------><------>     struct fimc_fmt **inp_fmt,
<------><------><------><------>     struct fimc_fmt **out_fmt)
{
<------>struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
<------>struct fimc_vid_cap *vc = &fimc->vid_cap;
<------>struct exynos_video_entity *ve = &vc->ve;
<------>struct fimc_ctx *ctx = vc->ctx;
<------>unsigned int width = 0, height = 0;
<------>int ret = 0;
 
<------>/* Pre-configure format at the camera input interface, for JPEG only */
<------>if (fimc_jpeg_fourcc(pix->pixelformat)) {
<------><------>fimc_capture_try_format(ctx, &pix->width, &pix->height,
<------><------><------><------><------>NULL, &pix->pixelformat,
<------><------><------><------><------>FIMC_SD_PAD_SINK_CAM);
<------><------>if (try) {
<------><------><------>width = pix->width;
<------><------><------>height = pix->height;
<------><------>} else {
<------><------><------>ctx->s_frame.f_width = pix->width;
<------><------><------>ctx->s_frame.f_height = pix->height;
<------><------>}
<------>}
 
<------>/* Try the format at the scaler and the DMA output */
<------>*out_fmt = fimc_capture_try_format(ctx, &pix->width, &pix->height,
<------><------><------><------><------>  NULL, &pix->pixelformat,
<------><------><------><------><------>  FIMC_SD_PAD_SOURCE);
<------>if (*out_fmt == NULL)
<------><------>return -EINVAL;
 
<------>/* Restore image width/height for JPEG (no resizing supported). */
<------>if (try && fimc_jpeg_fourcc(pix->pixelformat)) {
<------><------>pix->width = width;
<------><------>pix->height = height;
<------>}
 
<------>/* Try to match format at the host and the sensor */
<------>if (!vc->user_subdev_api) {
<------><------>struct v4l2_mbus_framefmt mbus_fmt;
<------><------>struct v4l2_mbus_framefmt *mf;
 
<------><------>mf = try ? &mbus_fmt : &fimc->vid_cap.ci_fmt;
 
<------><------>mf->code = (*out_fmt)->mbus_code;
<------><------>mf->width = pix->width;
<------><------>mf->height = pix->height;
 
<------><------>fimc_md_graph_lock(ve);
<------><------>ret = fimc_pipeline_try_format(ctx, mf, inp_fmt, try);
<------><------>fimc_md_graph_unlock(ve);
 
<------><------>if (ret < 0)
<------><------><------>return ret;
 
<------><------>pix->width = mf->width;
<------><------>pix->height = mf->height;
<------>}
 
<------>fimc_adjust_mplane_format(*out_fmt, pix->width, pix->height, pix);
 
<------>if ((*out_fmt)->flags & FMT_FLAGS_COMPRESSED) {
<------><------>struct v4l2_subdev *sensor;
 
<------><------>fimc_md_graph_lock(ve);
 
<------><------>sensor = __fimc_md_get_subdev(ve->pipe, IDX_SENSOR);
<------><------>if (sensor)
<------><------><------>fimc_get_sensor_frame_desc(sensor, pix->plane_fmt,
<------><------><------><------><------><------>   (*out_fmt)->memplanes, try);
<------><------>else
<------><------><------>ret = -EPIPE;
 
<------><------>fimc_md_graph_unlock(ve);
<------>}
 
<------>return ret;
}
 
static int fimc_cap_try_fmt_mplane(struct file *file, void *fh,
<------><------><------><------>   struct v4l2_format *f)
{
<------>struct fimc_dev *fimc = video_drvdata(file);
<------>struct fimc_fmt *out_fmt = NULL, *inp_fmt = NULL;
 
<------>return __video_try_or_set_format(fimc, f, true, &inp_fmt, &out_fmt);
}
 
static void fimc_capture_mark_jpeg_xfer(struct fimc_ctx *ctx,
<------><------><------><------><------>enum fimc_color_fmt color)
{
<------>bool jpeg = fimc_fmt_is_user_defined(color);
 
<------>ctx->scaler.enabled = !jpeg;
<------>fimc_ctrls_activate(ctx, !jpeg);
 
<------>if (jpeg)
<------><------>set_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state);
<------>else
<------><------>clear_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state);
}
 
static int __fimc_capture_set_format(struct fimc_dev *fimc,
<------><------><------><------>     struct v4l2_format *f)
{
<------>struct fimc_vid_cap *vc = &fimc->vid_cap;
<------>struct fimc_ctx *ctx = vc->ctx;
<------>struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
<------>struct fimc_frame *ff = &ctx->d_frame;
<------>struct fimc_fmt *inp_fmt = NULL;
<------>int ret, i;
 
<------>if (vb2_is_busy(&fimc->vid_cap.vbq))
<------><------>return -EBUSY;
 
<------>ret = __video_try_or_set_format(fimc, f, false, &inp_fmt, &ff->fmt);
<------>if (ret < 0)
<------><------>return ret;
 
<------>/* Update RGB Alpha control state and value range */
<------>fimc_alpha_ctrl_update(ctx);
 
<------>for (i = 0; i < ff->fmt->memplanes; i++) {
<------><------>ff->bytesperline[i] = pix->plane_fmt[i].bytesperline;
<------><------>ff->payload[i] = pix->plane_fmt[i].sizeimage;
<------>}
 
<------>set_frame_bounds(ff, pix->width, pix->height);
<------>/* Reset the composition rectangle if not yet configured */
<------>if (!(ctx->state & FIMC_COMPOSE))
<------><------>set_frame_crop(ff, 0, 0, pix->width, pix->height);
 
<------>fimc_capture_mark_jpeg_xfer(ctx, ff->fmt->color);
 
<------>/* Reset cropping and set format at the camera interface input */
<------>if (!vc->user_subdev_api) {
<------><------>ctx->s_frame.fmt = inp_fmt;
<------><------>set_frame_bounds(&ctx->s_frame, pix->width, pix->height);
<------><------>set_frame_crop(&ctx->s_frame, 0, 0, pix->width, pix->height);
<------>}
 
<------>return ret;
}
 
static int fimc_cap_s_fmt_mplane(struct file *file, void *priv,
<------><------><------><------> struct v4l2_format *f)
{
<------>struct fimc_dev *fimc = video_drvdata(file);
 
<------>return __fimc_capture_set_format(fimc, f);
}
 
static int fimc_cap_enum_input(struct file *file, void *priv,
<------><------><------>       struct v4l2_input *i)
{
<------>struct fimc_dev *fimc = video_drvdata(file);
<------>struct exynos_video_entity *ve = &fimc->vid_cap.ve;
<------>struct v4l2_subdev *sd;
 
<------>if (i->index != 0)
<------><------>return -EINVAL;
 
<------>i->type = V4L2_INPUT_TYPE_CAMERA;
<------>fimc_md_graph_lock(ve);
<------>sd = __fimc_md_get_subdev(ve->pipe, IDX_SENSOR);
<------>fimc_md_graph_unlock(ve);
 
<------>if (sd)
<------><------>strscpy(i->name, sd->name, sizeof(i->name));
 
<------>return 0;
}
 
static int fimc_cap_s_input(struct file *file, void *priv, unsigned int i)
{
<------>return i == 0 ? i : -EINVAL;
}
 
static int fimc_cap_g_input(struct file *file, void *priv, unsigned int *i)
{
<------>*i = 0;
<------>return 0;
}
 
/**
 * fimc_pipeline_validate - check for formats inconsistencies
 *                          between source and sink pad of each link
 * @fimc:	the FIMC device this context applies to
 *
 * Return 0 if all formats match or -EPIPE otherwise.
 */
static int fimc_pipeline_validate(struct fimc_dev *fimc)
{
<------>struct v4l2_subdev_format sink_fmt, src_fmt;
<------>struct fimc_vid_cap *vc = &fimc->vid_cap;
<------>struct v4l2_subdev *sd = &vc->subdev;
<------>struct fimc_pipeline *p = to_fimc_pipeline(vc->ve.pipe);
<------>struct media_pad *sink_pad, *src_pad;
<------>int i, ret;
 
<------>while (1) {
<------><------>/*
<------><------> * Find current entity sink pad and any remote sink pad linked
<------><------> * to it. We stop if there is no sink pad in current entity or
<------><------> * it is not linked to any other remote entity.
<------><------> */
<------><------>src_pad = NULL;
 
<------><------>for (i = 0; i < sd->entity.num_pads; i++) {
<------><------><------>struct media_pad *p = &sd->entity.pads[i];
 
<------><------><------>if (p->flags & MEDIA_PAD_FL_SINK) {
<------><------><------><------>sink_pad = p;
<------><------><------><------>src_pad = media_entity_remote_pad(sink_pad);
<------><------><------><------>if (src_pad)
<------><------><------><------><------>break;
<------><------><------>}
<------><------>}
 
<------><------>if (!src_pad || !is_media_entity_v4l2_subdev(src_pad->entity))
<------><------><------>break;
 
<------><------>/* Don't call FIMC subdev operation to avoid nested locking */
<------><------>if (sd == &vc->subdev) {
<------><------><------>struct fimc_frame *ff = &vc->ctx->s_frame;
<------><------><------>sink_fmt.format.width = ff->f_width;
<------><------><------>sink_fmt.format.height = ff->f_height;
<------><------><------>sink_fmt.format.code = ff->fmt ? ff->fmt->mbus_code : 0;
<------><------>} else {
<------><------><------>sink_fmt.pad = sink_pad->index;
<------><------><------>sink_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
<------><------><------>ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sink_fmt);
<------><------><------>if (ret < 0 && ret != -ENOIOCTLCMD)
<------><------><------><------>return -EPIPE;
<------><------>}
 
<------><------>/* Retrieve format at the source pad */
<------><------>sd = media_entity_to_v4l2_subdev(src_pad->entity);
<------><------>src_fmt.pad = src_pad->index;
<------><------>src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
<------><------>ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt);
<------><------>if (ret < 0 && ret != -ENOIOCTLCMD)
<------><------><------>return -EPIPE;
 
<------><------>if (src_fmt.format.width != sink_fmt.format.width ||
<------><------>    src_fmt.format.height != sink_fmt.format.height ||
<------><------>    src_fmt.format.code != sink_fmt.format.code)
<------><------><------>return -EPIPE;
 
<------><------>if (sd == p->subdevs[IDX_SENSOR] &&
<------><------>    fimc_user_defined_mbus_fmt(src_fmt.format.code)) {
<------><------><------>struct v4l2_plane_pix_format plane_fmt[FIMC_MAX_PLANES];
<------><------><------>struct fimc_frame *frame = &vc->ctx->d_frame;
<------><------><------>unsigned int i;
 
<------><------><------>ret = fimc_get_sensor_frame_desc(sd, plane_fmt,
<------><------><------><------><------><------><------> frame->fmt->memplanes,
<------><------><------><------><------><------><------> false);
<------><------><------>if (ret < 0)
<------><------><------><------>return -EPIPE;
 
<------><------><------>for (i = 0; i < frame->fmt->memplanes; i++)
<------><------><------><------>if (frame->payload[i] < plane_fmt[i].sizeimage)
<------><------><------><------><------>return -EPIPE;
<------><------>}
<------>}
<------>return 0;
}
 
static int fimc_cap_streamon(struct file *file, void *priv,
<------><------><------>     enum v4l2_buf_type type)
{
<------>struct fimc_dev *fimc = video_drvdata(file);
<------>struct fimc_vid_cap *vc = &fimc->vid_cap;
<------>struct media_entity *entity = &vc->ve.vdev.entity;
<------>struct fimc_source_info *si = NULL;
<------>struct v4l2_subdev *sd;
<------>int ret;
 
<------>if (fimc_capture_active(fimc))
<------><------>return -EBUSY;
 
<------>ret = media_pipeline_start(entity, &vc->ve.pipe->mp);
<------>if (ret < 0)
<------><------>return ret;
 
<------>sd = __fimc_md_get_subdev(vc->ve.pipe, IDX_SENSOR);
<------>if (sd)
<------><------>si = v4l2_get_subdev_hostdata(sd);
 
<------>if (si == NULL) {
<------><------>ret = -EPIPE;
<------><------>goto err_p_stop;
<------>}
<------>/*
<------> * Save configuration data related to currently attached image
<------> * sensor or other data source, e.g. FIMC-IS.
<------> */
<------>vc->source_config = *si;
 
<------>if (vc->input == GRP_ID_FIMC_IS)
<------><------>vc->source_config.fimc_bus_type = FIMC_BUS_TYPE_ISP_WRITEBACK;
 
<------>if (vc->user_subdev_api) {
<------><------>ret = fimc_pipeline_validate(fimc);
<------><------>if (ret < 0)
<------><------><------>goto err_p_stop;
<------>}
 
<------>ret = vb2_ioctl_streamon(file, priv, type);
<------>if (!ret) {
<------><------>vc->streaming = true;
<------><------>return ret;
<------>}
 
err_p_stop:
<------>media_pipeline_stop(entity);
<------>return ret;
}
 
static int fimc_cap_streamoff(struct file *file, void *priv,
<------><------><------>    enum v4l2_buf_type type)
{
<------>struct fimc_dev *fimc = video_drvdata(file);
<------>struct fimc_vid_cap *vc = &fimc->vid_cap;
<------>int ret;
 
<------>ret = vb2_ioctl_streamoff(file, priv, type);
<------>if (ret < 0)
<------><------>return ret;
 
<------>if (vc->streaming) {
<------><------>media_pipeline_stop(&vc->ve.vdev.entity);
<------><------>vc->streaming = false;
<------>}
 
<------>return 0;
}
 
static int fimc_cap_reqbufs(struct file *file, void *priv,
<------><------><------>    struct v4l2_requestbuffers *reqbufs)
{
<------>struct fimc_dev *fimc = video_drvdata(file);
<------>int ret;
 
<------>ret = vb2_ioctl_reqbufs(file, priv, reqbufs);
 
<------>if (!ret)
<------><------>fimc->vid_cap.reqbufs_count = reqbufs->count;
 
<------>return ret;
}
 
static int fimc_cap_g_selection(struct file *file, void *fh,
<------><------><------><------>struct v4l2_selection *s)
{
<------>struct fimc_dev *fimc = video_drvdata(file);
<------>struct fimc_ctx *ctx = fimc->vid_cap.ctx;
<------>struct fimc_frame *f = &ctx->s_frame;
 
<------>if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
<------><------>return -EINVAL;
 
<------>switch (s->target) {
<------>case V4L2_SEL_TGT_COMPOSE_DEFAULT:
<------>case V4L2_SEL_TGT_COMPOSE_BOUNDS:
<------><------>f = &ctx->d_frame;
<------><------>fallthrough;
<------>case V4L2_SEL_TGT_CROP_BOUNDS:
<------>case V4L2_SEL_TGT_CROP_DEFAULT:
<------><------>s->r.left = 0;
<------><------>s->r.top = 0;
<------><------>s->r.width = f->o_width;
<------><------>s->r.height = f->o_height;
<------><------>return 0;
 
<------>case V4L2_SEL_TGT_COMPOSE:
<------><------>f = &ctx->d_frame;
<------><------>fallthrough;
<------>case V4L2_SEL_TGT_CROP:
<------><------>s->r.left = f->offs_h;
<------><------>s->r.top = f->offs_v;
<------><------>s->r.width = f->width;
<------><------>s->r.height = f->height;
<------><------>return 0;
<------>}
 
<------>return -EINVAL;
}
 
static int fimc_cap_s_selection(struct file *file, void *fh,
<------><------><------><------>struct v4l2_selection *s)
{
<------>struct fimc_dev *fimc = video_drvdata(file);
<------>struct fimc_ctx *ctx = fimc->vid_cap.ctx;
<------>struct v4l2_rect rect = s->r;
<------>struct fimc_frame *f;
<------>unsigned long flags;
 
<------>if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
<------><------>return -EINVAL;
 
<------>if (s->target == V4L2_SEL_TGT_COMPOSE)
<------><------>f = &ctx->d_frame;
<------>else if (s->target == V4L2_SEL_TGT_CROP)
<------><------>f = &ctx->s_frame;
<------>else
<------><------>return -EINVAL;
 
<------>fimc_capture_try_selection(ctx, &rect, s->target);
 
<------>if (s->flags & V4L2_SEL_FLAG_LE &&
<------>    !v4l2_rect_enclosed(&rect, &s->r))
<------><------>return -ERANGE;
 
<------>if (s->flags & V4L2_SEL_FLAG_GE &&
<------>    !v4l2_rect_enclosed(&s->r, &rect))
<------><------>return -ERANGE;
 
<------>s->r = rect;
<------>spin_lock_irqsave(&fimc->slock, flags);
<------>set_frame_crop(f, s->r.left, s->r.top, s->r.width,
<------><------>       s->r.height);
<------>spin_unlock_irqrestore(&fimc->slock, flags);
 
<------>set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
<------>return 0;
}
 
static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = {
<------>.vidioc_querycap		= fimc_cap_querycap,
 
<------>.vidioc_enum_fmt_vid_cap	= fimc_cap_enum_fmt,
<------>.vidioc_try_fmt_vid_cap_mplane	= fimc_cap_try_fmt_mplane,
<------>.vidioc_s_fmt_vid_cap_mplane	= fimc_cap_s_fmt_mplane,
<------>.vidioc_g_fmt_vid_cap_mplane	= fimc_cap_g_fmt_mplane,
 
<------>.vidioc_reqbufs			= fimc_cap_reqbufs,
<------>.vidioc_querybuf		= vb2_ioctl_querybuf,
<------>.vidioc_qbuf			= vb2_ioctl_qbuf,
<------>.vidioc_dqbuf			= vb2_ioctl_dqbuf,
<------>.vidioc_expbuf			= vb2_ioctl_expbuf,
<------>.vidioc_prepare_buf		= vb2_ioctl_prepare_buf,
<------>.vidioc_create_bufs		= vb2_ioctl_create_bufs,
 
<------>.vidioc_streamon		= fimc_cap_streamon,
<------>.vidioc_streamoff		= fimc_cap_streamoff,
 
<------>.vidioc_g_selection		= fimc_cap_g_selection,
<------>.vidioc_s_selection		= fimc_cap_s_selection,
 
<------>.vidioc_enum_input		= fimc_cap_enum_input,
<------>.vidioc_s_input			= fimc_cap_s_input,
<------>.vidioc_g_input			= fimc_cap_g_input,
};
 
/* Capture subdev media entity operations */
static int fimc_link_setup(struct media_entity *entity,
<------><------><------>   const struct media_pad *local,
<------><------><------>   const struct media_pad *remote, u32 flags)
{
<------>struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
<------>struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
<------>struct fimc_vid_cap *vc = &fimc->vid_cap;
<------>struct v4l2_subdev *sensor;
 
<------>if (!is_media_entity_v4l2_subdev(remote->entity))
<------><------>return -EINVAL;
 
<------>if (WARN_ON(fimc == NULL))
<------><------>return 0;
 
<------>dbg("%s --> %s, flags: 0x%x. input: 0x%x",
<------>    local->entity->name, remote->entity->name, flags,
<------>    fimc->vid_cap.input);
 
<------>if (!(flags & MEDIA_LNK_FL_ENABLED)) {
<------><------>fimc->vid_cap.input = 0;
<------><------>return 0;
<------>}
 
<------>if (vc->input != 0)
<------><------>return -EBUSY;
 
<------>vc->input = sd->grp_id;
 
<------>if (vc->user_subdev_api)
<------><------>return 0;
 
<------>/* Inherit V4L2 controls from the image sensor subdev. */
<------>sensor = fimc_find_remote_sensor(&vc->subdev.entity);
<------>if (sensor == NULL)
<------><------>return 0;
 
<------>return v4l2_ctrl_add_handler(&vc->ctx->ctrls.handler,
<------><------><------><------>     sensor->ctrl_handler, NULL, true);
}
 
static const struct media_entity_operations fimc_sd_media_ops = {
<------>.link_setup = fimc_link_setup,
};
 
/**
 * fimc_sensor_notify - v4l2_device notification from a sensor subdev
 * @sd: pointer to a subdev generating the notification
 * @notification: the notification type, must be S5P_FIMC_TX_END_NOTIFY
 * @arg: pointer to an u32 type integer that stores the frame payload value
 *
 * The End Of Frame notification sent by sensor subdev in its still capture
 * mode. If there is only a single VSYNC generated by the sensor at the
 * beginning of a frame transmission, FIMC does not issue the LastIrq
 * (end of frame) interrupt. And this notification is used to complete the
 * frame capture and returning a buffer to user-space. Subdev drivers should
 * call this notification from their last 'End of frame capture' interrupt.
 */
void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification,
<------><------><------>void *arg)
{
<------>struct fimc_source_info	*si;
<------>struct fimc_vid_buffer *buf;
<------>struct fimc_md *fmd;
<------>struct fimc_dev *fimc;
<------>unsigned long flags;
 
<------>if (sd == NULL)
<------><------>return;
 
<------>si = v4l2_get_subdev_hostdata(sd);
<------>fmd = entity_to_fimc_mdev(&sd->entity);
 
<------>spin_lock_irqsave(&fmd->slock, flags);
 
<------>fimc = si ? source_to_sensor_info(si)->host : NULL;
 
<------>if (fimc && arg && notification == S5P_FIMC_TX_END_NOTIFY &&
<------>    test_bit(ST_CAPT_PEND, &fimc->state)) {
<------><------>unsigned long irq_flags;
<------><------>spin_lock_irqsave(&fimc->slock, irq_flags);
<------><------>if (!list_empty(&fimc->vid_cap.active_buf_q)) {
<------><------><------>buf = list_entry(fimc->vid_cap.active_buf_q.next,
<------><------><------><------><------> struct fimc_vid_buffer, list);
<------><------><------>vb2_set_plane_payload(&buf->vb.vb2_buf, 0,
<------><------><------><------><------>      *((u32 *)arg));
<------><------>}
<------><------>fimc_capture_irq_handler(fimc, 1);
<------><------>fimc_deactivate_capture(fimc);
<------><------>spin_unlock_irqrestore(&fimc->slock, irq_flags);
<------>}
<------>spin_unlock_irqrestore(&fmd->slock, flags);
}
 
static int fimc_subdev_enum_mbus_code(struct v4l2_subdev *sd,
<------><------><------><------>      struct v4l2_subdev_pad_config *cfg,
<------><------><------><------>      struct v4l2_subdev_mbus_code_enum *code)
{
<------>struct fimc_fmt *fmt;
 
<------>fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, code->index);
<------>if (!fmt)
<------><------>return -EINVAL;
<------>code->code = fmt->mbus_code;
<------>return 0;
}
 
static int fimc_subdev_get_fmt(struct v4l2_subdev *sd,
<------><------><------>       struct v4l2_subdev_pad_config *cfg,
<------><------><------>       struct v4l2_subdev_format *fmt)
{
<------>struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
<------>struct fimc_ctx *ctx = fimc->vid_cap.ctx;
<------>struct fimc_frame *ff = &ctx->s_frame;
<------>struct v4l2_mbus_framefmt *mf;
 
<------>if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
<------><------>mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
<------><------>fmt->format = *mf;
<------><------>return 0;
<------>}
 
<------>mf = &fmt->format;
<------>mutex_lock(&fimc->lock);
 
<------>switch (fmt->pad) {
<------>case FIMC_SD_PAD_SOURCE:
<------><------>if (!WARN_ON(ff->fmt == NULL))
<------><------><------>mf->code = ff->fmt->mbus_code;
<------><------>/* Sink pads crop rectangle size */
<------><------>mf->width = ff->width;
<------><------>mf->height = ff->height;
<------><------>break;
<------>case FIMC_SD_PAD_SINK_FIFO:
<------><------>*mf = fimc->vid_cap.wb_fmt;
<------><------>break;
<------>case FIMC_SD_PAD_SINK_CAM:
<------>default:
<------><------>*mf = fimc->vid_cap.ci_fmt;
<------><------>break;
<------>}
 
<------>mutex_unlock(&fimc->lock);
<------>mf->colorspace = V4L2_COLORSPACE_JPEG;
 
<------>return 0;
}
 
static int fimc_subdev_set_fmt(struct v4l2_subdev *sd,
<------><------><------>       struct v4l2_subdev_pad_config *cfg,
<------><------><------>       struct v4l2_subdev_format *fmt)
{
<------>struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
<------>struct v4l2_mbus_framefmt *mf = &fmt->format;
<------>struct fimc_vid_cap *vc = &fimc->vid_cap;
<------>struct fimc_ctx *ctx = vc->ctx;
<------>struct fimc_frame *ff;
<------>struct fimc_fmt *ffmt;
 
<------>dbg("pad%d: code: 0x%x, %dx%d",
<------>    fmt->pad, mf->code, mf->width, mf->height);
 
<------>if (fmt->pad == FIMC_SD_PAD_SOURCE && vb2_is_busy(&vc->vbq))
<------><------>return -EBUSY;
 
<------>mutex_lock(&fimc->lock);
<------>ffmt = fimc_capture_try_format(ctx, &mf->width, &mf->height,
<------><------><------><------>       &mf->code, NULL, fmt->pad);
<------>mutex_unlock(&fimc->lock);
<------>mf->colorspace = V4L2_COLORSPACE_JPEG;
 
<------>if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
<------><------>mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
<------><------>*mf = fmt->format;
<------><------>return 0;
<------>}
<------>/* There must be a bug in the driver if this happens */
<------>if (WARN_ON(ffmt == NULL))
<------><------>return -EINVAL;
 
<------>/* Update RGB Alpha control state and value range */
<------>fimc_alpha_ctrl_update(ctx);
 
<------>fimc_capture_mark_jpeg_xfer(ctx, ffmt->color);
<------>if (fmt->pad == FIMC_SD_PAD_SOURCE) {
<------><------>ff = &ctx->d_frame;
<------><------>/* Sink pads crop rectangle size */
<------><------>mf->width = ctx->s_frame.width;
<------><------>mf->height = ctx->s_frame.height;
<------>} else {
<------><------>ff = &ctx->s_frame;
<------>}
 
<------>mutex_lock(&fimc->lock);
<------>set_frame_bounds(ff, mf->width, mf->height);
 
<------>if (fmt->pad == FIMC_SD_PAD_SINK_FIFO)
<------><------>vc->wb_fmt = *mf;
<------>else if (fmt->pad == FIMC_SD_PAD_SINK_CAM)
<------><------>vc->ci_fmt = *mf;
 
<------>ff->fmt = ffmt;
 
<------>/* Reset the crop rectangle if required. */
<------>if (!(fmt->pad == FIMC_SD_PAD_SOURCE && (ctx->state & FIMC_COMPOSE)))
<------><------>set_frame_crop(ff, 0, 0, mf->width, mf->height);
 
<------>if (fmt->pad != FIMC_SD_PAD_SOURCE)
<------><------>ctx->state &= ~FIMC_COMPOSE;
 
<------>mutex_unlock(&fimc->lock);
<------>return 0;
}
 
static int fimc_subdev_get_selection(struct v4l2_subdev *sd,
<------><------><------><------>     struct v4l2_subdev_pad_config *cfg,
<------><------><------><------>     struct v4l2_subdev_selection *sel)
{
<------>struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
<------>struct fimc_ctx *ctx = fimc->vid_cap.ctx;
<------>struct fimc_frame *f = &ctx->s_frame;
<------>struct v4l2_rect *r = &sel->r;
<------>struct v4l2_rect *try_sel;
 
<------>if (sel->pad == FIMC_SD_PAD_SOURCE)
<------><------>return -EINVAL;
 
<------>mutex_lock(&fimc->lock);
 
<------>switch (sel->target) {
<------>case V4L2_SEL_TGT_COMPOSE_BOUNDS:
<------><------>f = &ctx->d_frame;
<------><------>fallthrough;
<------>case V4L2_SEL_TGT_CROP_BOUNDS:
<------><------>r->width = f->o_width;
<------><------>r->height = f->o_height;
<------><------>r->left = 0;
<------><------>r->top = 0;
<------><------>mutex_unlock(&fimc->lock);
<------><------>return 0;
 
<------>case V4L2_SEL_TGT_CROP:
<------><------>try_sel = v4l2_subdev_get_try_crop(sd, cfg, sel->pad);
<------><------>break;
<------>case V4L2_SEL_TGT_COMPOSE:
<------><------>try_sel = v4l2_subdev_get_try_compose(sd, cfg, sel->pad);
<------><------>f = &ctx->d_frame;
<------><------>break;
<------>default:
<------><------>mutex_unlock(&fimc->lock);
<------><------>return -EINVAL;
<------>}
 
<------>if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
<------><------>sel->r = *try_sel;
<------>} else {
<------><------>r->left = f->offs_h;
<------><------>r->top = f->offs_v;
<------><------>r->width = f->width;
<------><------>r->height = f->height;
<------>}
 
<------>dbg("target %#x: l:%d, t:%d, %dx%d, f_w: %d, f_h: %d",
<------>    sel->pad, r->left, r->top, r->width, r->height,
<------>    f->f_width, f->f_height);
 
<------>mutex_unlock(&fimc->lock);
<------>return 0;
}
 
static int fimc_subdev_set_selection(struct v4l2_subdev *sd,
<------><------><------><------>     struct v4l2_subdev_pad_config *cfg,
<------><------><------><------>     struct v4l2_subdev_selection *sel)
{
<------>struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
<------>struct fimc_ctx *ctx = fimc->vid_cap.ctx;
<------>struct fimc_frame *f = &ctx->s_frame;
<------>struct v4l2_rect *r = &sel->r;
<------>struct v4l2_rect *try_sel;
<------>unsigned long flags;
 
<------>if (sel->pad == FIMC_SD_PAD_SOURCE)
<------><------>return -EINVAL;
 
<------>mutex_lock(&fimc->lock);
<------>fimc_capture_try_selection(ctx, r, V4L2_SEL_TGT_CROP);
 
<------>switch (sel->target) {
<------>case V4L2_SEL_TGT_CROP:
<------><------>try_sel = v4l2_subdev_get_try_crop(sd, cfg, sel->pad);
<------><------>break;
<------>case V4L2_SEL_TGT_COMPOSE:
<------><------>try_sel = v4l2_subdev_get_try_compose(sd, cfg, sel->pad);
<------><------>f = &ctx->d_frame;
<------><------>break;
<------>default:
<------><------>mutex_unlock(&fimc->lock);
<------><------>return -EINVAL;
<------>}
 
<------>if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
<------><------>*try_sel = sel->r;
<------>} else {
<------><------>spin_lock_irqsave(&fimc->slock, flags);
<------><------>set_frame_crop(f, r->left, r->top, r->width, r->height);
<------><------>set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
<------><------>if (sel->target == V4L2_SEL_TGT_COMPOSE)
<------><------><------>ctx->state |= FIMC_COMPOSE;
<------><------>spin_unlock_irqrestore(&fimc->slock, flags);
<------>}
 
<------>dbg("target %#x: (%d,%d)/%dx%d", sel->target, r->left, r->top,
<------>    r->width, r->height);
 
<------>mutex_unlock(&fimc->lock);
<------>return 0;
}
 
static const struct v4l2_subdev_pad_ops fimc_subdev_pad_ops = {
<------>.enum_mbus_code = fimc_subdev_enum_mbus_code,
<------>.get_selection = fimc_subdev_get_selection,
<------>.set_selection = fimc_subdev_set_selection,
<------>.get_fmt = fimc_subdev_get_fmt,
<------>.set_fmt = fimc_subdev_set_fmt,
};
 
static const struct v4l2_subdev_ops fimc_subdev_ops = {
<------>.pad = &fimc_subdev_pad_ops,
};
 
/* Set default format at the sensor and host interface */
static int fimc_capture_set_default_format(struct fimc_dev *fimc)
{
<------>struct v4l2_format fmt = {
<------><------>.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
<------><------>.fmt.pix_mp = {
<------><------><------>.width		= FIMC_DEFAULT_WIDTH,
<------><------><------>.height		= FIMC_DEFAULT_HEIGHT,
<------><------><------>.pixelformat	= V4L2_PIX_FMT_YUYV,
<------><------><------>.field		= V4L2_FIELD_NONE,
<------><------><------>.colorspace	= V4L2_COLORSPACE_JPEG,
<------><------>},
<------>};
 
<------>return __fimc_capture_set_format(fimc, &fmt);
}
 
/* fimc->lock must be already initialized */
static int fimc_register_capture_device(struct fimc_dev *fimc,
<------><------><------><------> struct v4l2_device *v4l2_dev)
{
<------>struct video_device *vfd = &fimc->vid_cap.ve.vdev;
<------>struct vb2_queue *q = &fimc->vid_cap.vbq;
<------>struct fimc_ctx *ctx;
<------>struct fimc_vid_cap *vid_cap;
<------>struct fimc_fmt *fmt;
<------>int ret = -ENOMEM;
 
<------>ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
<------>if (!ctx)
<------><------>return -ENOMEM;
 
<------>ctx->fimc_dev	 = fimc;
<------>ctx->in_path	 = FIMC_IO_CAMERA;
<------>ctx->out_path	 = FIMC_IO_DMA;
<------>ctx->state	 = FIMC_CTX_CAP;
<------>ctx->s_frame.fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0);
<------>ctx->d_frame.fmt = ctx->s_frame.fmt;
 
<------>memset(vfd, 0, sizeof(*vfd));
<------>snprintf(vfd->name, sizeof(vfd->name), "fimc.%d.capture", fimc->id);
 
<------>vfd->fops	= &fimc_capture_fops;
<------>vfd->ioctl_ops	= &fimc_capture_ioctl_ops;
<------>vfd->v4l2_dev	= v4l2_dev;
<------>vfd->minor	= -1;
<------>vfd->release	= video_device_release_empty;
<------>vfd->queue	= q;
<------>vfd->lock	= &fimc->lock;
<------>vfd->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE_MPLANE;
 
<------>video_set_drvdata(vfd, fimc);
<------>vid_cap = &fimc->vid_cap;
<------>vid_cap->active_buf_cnt = 0;
<------>vid_cap->reqbufs_count = 0;
<------>vid_cap->ctx = ctx;
 
<------>INIT_LIST_HEAD(&vid_cap->pending_buf_q);
<------>INIT_LIST_HEAD(&vid_cap->active_buf_q);
 
<------>memset(q, 0, sizeof(*q));
<------>q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
<------>q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
<------>q->drv_priv = ctx;
<------>q->ops = &fimc_capture_qops;
<------>q->mem_ops = &vb2_dma_contig_memops;
<------>q->buf_struct_size = sizeof(struct fimc_vid_buffer);
<------>q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
<------>q->lock = &fimc->lock;
<------>q->dev = &fimc->pdev->dev;
 
<------>ret = vb2_queue_init(q);
<------>if (ret)
<------><------>goto err_free_ctx;
 
<------>/* Default format configuration */
<------>fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0);
<------>vid_cap->ci_fmt.width = FIMC_DEFAULT_WIDTH;
<------>vid_cap->ci_fmt.height = FIMC_DEFAULT_HEIGHT;
<------>vid_cap->ci_fmt.code = fmt->mbus_code;
 
<------>ctx->s_frame.width = FIMC_DEFAULT_WIDTH;
<------>ctx->s_frame.height = FIMC_DEFAULT_HEIGHT;
<------>ctx->s_frame.fmt = fmt;
 
<------>fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_WRITEBACK, 0);
<------>vid_cap->wb_fmt = vid_cap->ci_fmt;
<------>vid_cap->wb_fmt.code = fmt->mbus_code;
 
<------>vid_cap->vd_pad.flags = MEDIA_PAD_FL_SINK;
<------>vfd->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER;
<------>ret = media_entity_pads_init(&vfd->entity, 1, &vid_cap->vd_pad);
<------>if (ret)
<------><------>goto err_free_ctx;
 
<------>ret = fimc_ctrls_create(ctx);
<------>if (ret)
<------><------>goto err_me_cleanup;
 
<------>ret = video_register_device(vfd, VFL_TYPE_VIDEO, -1);
<------>if (ret)
<------><------>goto err_ctrl_free;
 
<------>v4l2_info(v4l2_dev, "Registered %s as /dev/%s\n",
<------><------>  vfd->name, video_device_node_name(vfd));
 
<------>vfd->ctrl_handler = &ctx->ctrls.handler;
<------>return 0;
 
err_ctrl_free:
<------>fimc_ctrls_delete(ctx);
err_me_cleanup:
<------>media_entity_cleanup(&vfd->entity);
err_free_ctx:
<------>kfree(ctx);
<------>return ret;
}
 
static int fimc_capture_subdev_registered(struct v4l2_subdev *sd)
{
<------>struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
<------>int ret;
 
<------>if (fimc == NULL)
<------><------>return -ENXIO;
 
<------>ret = fimc_register_m2m_device(fimc, sd->v4l2_dev);
<------>if (ret)
<------><------>return ret;
 
<------>fimc->vid_cap.ve.pipe = v4l2_get_subdev_hostdata(sd);
 
<------>ret = fimc_register_capture_device(fimc, sd->v4l2_dev);
<------>if (ret) {
<------><------>fimc_unregister_m2m_device(fimc);
<------><------>fimc->vid_cap.ve.pipe = NULL;
<------>}
 
<------>return ret;
}
 
static void fimc_capture_subdev_unregistered(struct v4l2_subdev *sd)
{
<------>struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
<------>struct video_device *vdev;
 
<------>if (fimc == NULL)
<------><------>return;
 
<------>mutex_lock(&fimc->lock);
 
<------>fimc_unregister_m2m_device(fimc);
<------>vdev = &fimc->vid_cap.ve.vdev;
 
<------>if (video_is_registered(vdev)) {
<------><------>video_unregister_device(vdev);
<------><------>media_entity_cleanup(&vdev->entity);
<------><------>fimc_ctrls_delete(fimc->vid_cap.ctx);
<------><------>fimc->vid_cap.ve.pipe = NULL;
<------>}
<------>kfree(fimc->vid_cap.ctx);
<------>fimc->vid_cap.ctx = NULL;
 
<------>mutex_unlock(&fimc->lock);
}
 
static const struct v4l2_subdev_internal_ops fimc_capture_sd_internal_ops = {
<------>.registered = fimc_capture_subdev_registered,
<------>.unregistered = fimc_capture_subdev_unregistered,
};
 
int fimc_initialize_capture_subdev(struct fimc_dev *fimc)
{
<------>struct v4l2_subdev *sd = &fimc->vid_cap.subdev;
<------>int ret;
 
<------>v4l2_subdev_init(sd, &fimc_subdev_ops);
<------>sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
<------>snprintf(sd->name, sizeof(sd->name), "FIMC.%d", fimc->id);
 
<------>fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_CAM].flags = MEDIA_PAD_FL_SINK;
<------>fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_FIFO].flags = MEDIA_PAD_FL_SINK;
<------>fimc->vid_cap.sd_pads[FIMC_SD_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
<------>ret = media_entity_pads_init(&sd->entity, FIMC_SD_PADS_NUM,
<------><------><------><------>fimc->vid_cap.sd_pads);
<------>if (ret)
<------><------>return ret;
 
<------>sd->entity.ops = &fimc_sd_media_ops;
<------>sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER;
<------>sd->internal_ops = &fimc_capture_sd_internal_ops;
<------>v4l2_set_subdevdata(sd, fimc);
<------>return 0;
}
 
void fimc_unregister_capture_subdev(struct fimc_dev *fimc)
{
<------>struct v4l2_subdev *sd = &fimc->vid_cap.subdev;
 
<------>v4l2_device_unregister_subdev(sd);
<------>media_entity_cleanup(&sd->entity);
<------>v4l2_set_subdevdata(sd, NULL);
}