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* Samsung S5P/EXYNOS4 SoC series camera interface (camera capture) driver
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* Copyright (C) 2010 - 2011 Samsung Electronics Co., Ltd.
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* Author: Sylwester Nawrocki, <s.nawrocki@samsung.com>
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/errno.h>
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#include <linux/bug.h>
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#include <linux/interrupt.h>
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#include <linux/device.h>
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#include <linux/pm_runtime.h>
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#include <linux/list.h>
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#include <linux/slab.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-ioctl.h>
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#include <media/v4l2-mem2mem.h>
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#include <media/videobuf2-core.h>
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#include <media/videobuf2-dma-contig.h>
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#include "fimc-mdevice.h"
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#include "fimc-core.h"
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static int fimc_init_capture(struct fimc_dev *fimc)
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struct fimc_ctx *ctx = fimc->vid_cap.ctx;
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struct fimc_sensor_info *sensor;
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if (fimc->pipeline.sensor == NULL || ctx == NULL)
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if (ctx->s_frame.fmt == NULL)
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sensor = v4l2_get_subdev_hostdata(fimc->pipeline.sensor);
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spin_lock_irqsave(&fimc->slock, flags);
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fimc_prepare_dma_offset(ctx, &ctx->d_frame);
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fimc_set_yuv_order(ctx);
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fimc_hw_set_camera_polarity(fimc, sensor->pdata);
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fimc_hw_set_camera_type(fimc, sensor->pdata);
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fimc_hw_set_camera_source(fimc, sensor->pdata);
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fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
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ret = fimc_set_scaler_info(ctx);
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fimc_hw_set_input_path(ctx);
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fimc_hw_set_prescaler(ctx);
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fimc_hw_set_mainscaler(ctx);
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fimc_hw_set_target_format(ctx);
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fimc_hw_set_rotation(ctx);
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fimc_hw_set_effect(ctx, false);
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fimc_hw_set_output_path(ctx);
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fimc_hw_set_out_dma(ctx);
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clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
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spin_unlock_irqrestore(&fimc->slock, flags);
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static int fimc_capture_state_cleanup(struct fimc_dev *fimc, bool suspend)
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struct fimc_vid_cap *cap = &fimc->vid_cap;
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struct fimc_vid_buffer *buf;
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spin_lock_irqsave(&fimc->slock, flags);
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streaming = fimc->state & (1 << ST_CAPT_ISP_STREAM);
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fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_SHUT |
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1 << ST_CAPT_STREAM | 1 << ST_CAPT_ISP_STREAM);
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fimc->state &= ~(1 << ST_CAPT_PEND | 1 << ST_CAPT_SUSPENDED);
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/* Release unused buffers */
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while (!suspend && !list_empty(&cap->pending_buf_q)) {
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buf = fimc_pending_queue_pop(cap);
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vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
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/* If suspending put unused buffers onto pending queue */
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while (!list_empty(&cap->active_buf_q)) {
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buf = fimc_active_queue_pop(cap);
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fimc_pending_queue_add(cap, buf);
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vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
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set_bit(ST_CAPT_SUSPENDED, &fimc->state);
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spin_unlock_irqrestore(&fimc->slock, flags);
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return fimc_pipeline_s_stream(fimc, 0);
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static int fimc_stop_capture(struct fimc_dev *fimc, bool suspend)
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if (!fimc_capture_active(fimc))
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spin_lock_irqsave(&fimc->slock, flags);
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set_bit(ST_CAPT_SHUT, &fimc->state);
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fimc_deactivate_capture(fimc);
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spin_unlock_irqrestore(&fimc->slock, flags);
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wait_event_timeout(fimc->irq_queue,
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!test_bit(ST_CAPT_SHUT, &fimc->state),
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(2*HZ/10)); /* 200 ms */
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return fimc_capture_state_cleanup(fimc, suspend);
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* fimc_capture_config_update - apply the camera interface configuration
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* To be called from within the interrupt handler with fimc.slock
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* spinlock held. It updates the camera pixel crop, rotation and
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int fimc_capture_config_update(struct fimc_ctx *ctx)
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struct fimc_dev *fimc = ctx->fimc_dev;
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if (!test_bit(ST_CAPT_APPLY_CFG, &fimc->state))
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spin_lock(&ctx->slock);
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fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
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ret = fimc_set_scaler_info(ctx);
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fimc_hw_set_prescaler(ctx);
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fimc_hw_set_mainscaler(ctx);
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fimc_hw_set_target_format(ctx);
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fimc_hw_set_rotation(ctx);
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fimc_prepare_dma_offset(ctx, &ctx->d_frame);
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fimc_hw_set_out_dma(ctx);
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clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
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spin_unlock(&ctx->slock);
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static int start_streaming(struct vb2_queue *q, unsigned int count)
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struct fimc_ctx *ctx = q->drv_priv;
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struct fimc_dev *fimc = ctx->fimc_dev;
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struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
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vid_cap->frame_count = 0;
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ret = fimc_init_capture(fimc);
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set_bit(ST_CAPT_PEND, &fimc->state);
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min_bufs = fimc->vid_cap.reqbufs_count > 1 ? 2 : 1;
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if (vid_cap->active_buf_cnt >= min_bufs &&
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!test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
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fimc_activate_capture(ctx);
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if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
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fimc_pipeline_s_stream(fimc, 1);
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fimc_capture_state_cleanup(fimc, false);
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static int stop_streaming(struct vb2_queue *q)
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struct fimc_ctx *ctx = q->drv_priv;
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struct fimc_dev *fimc = ctx->fimc_dev;
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if (!fimc_capture_active(fimc))
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return fimc_stop_capture(fimc, false);
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int fimc_capture_suspend(struct fimc_dev *fimc)
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bool suspend = fimc_capture_busy(fimc);
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int ret = fimc_stop_capture(fimc, suspend);
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return fimc_pipeline_shutdown(fimc);
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static void buffer_queue(struct vb2_buffer *vb);
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int fimc_capture_resume(struct fimc_dev *fimc)
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struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
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struct fimc_vid_buffer *buf;
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if (!test_and_clear_bit(ST_CAPT_SUSPENDED, &fimc->state))
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INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q);
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vid_cap->buf_index = 0;
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fimc_pipeline_initialize(fimc, &fimc->vid_cap.vfd->entity,
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fimc_init_capture(fimc);
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clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
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for (i = 0; i < vid_cap->reqbufs_count; i++) {
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if (list_empty(&vid_cap->pending_buf_q))
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buf = fimc_pending_queue_pop(vid_cap);
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buffer_queue(&buf->vb);
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static unsigned int get_plane_size(struct fimc_frame *fr, unsigned int plane)
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if (!fr || plane >= fr->fmt->memplanes)
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return fr->f_width * fr->f_height * fr->fmt->depth[plane] / 8;
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static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *pfmt,
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unsigned int *num_buffers, unsigned int *num_planes,
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unsigned int sizes[], void *allocators[])
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struct fimc_ctx *ctx = vq->drv_priv;
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struct fimc_fmt *fmt = ctx->d_frame.fmt;
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*num_planes = fmt->memplanes;
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for (i = 0; i < fmt->memplanes; i++) {
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sizes[i] = get_plane_size(&ctx->d_frame, i);
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allocators[i] = ctx->fimc_dev->alloc_ctx;
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static int buffer_prepare(struct vb2_buffer *vb)
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struct vb2_queue *vq = vb->vb2_queue;
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struct fimc_ctx *ctx = vq->drv_priv;
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if (ctx->d_frame.fmt == NULL)
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for (i = 0; i < ctx->d_frame.fmt->memplanes; i++) {
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unsigned long size = ctx->d_frame.payload[i];
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if (vb2_plane_size(vb, i) < size) {
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v4l2_err(ctx->fimc_dev->vid_cap.vfd,
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"User buffer too small (%ld < %ld)\n",
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vb2_plane_size(vb, i), size);
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vb2_set_plane_payload(vb, i, size);
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static void buffer_queue(struct vb2_buffer *vb)
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struct fimc_vid_buffer *buf
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= container_of(vb, struct fimc_vid_buffer, vb);
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struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
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struct fimc_dev *fimc = ctx->fimc_dev;
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struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
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spin_lock_irqsave(&fimc->slock, flags);
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fimc_prepare_addr(ctx, &buf->vb, &ctx->d_frame, &buf->paddr);
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if (!test_bit(ST_CAPT_SUSPENDED, &fimc->state) &&
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!test_bit(ST_CAPT_STREAM, &fimc->state) &&
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vid_cap->active_buf_cnt < FIMC_MAX_OUT_BUFS) {
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/* Setup the buffer directly for processing. */
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int buf_id = (vid_cap->reqbufs_count == 1) ? -1 :
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fimc_hw_set_output_addr(fimc, &buf->paddr, buf_id);
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buf->index = vid_cap->buf_index;
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fimc_active_queue_add(vid_cap, buf);
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if (++vid_cap->buf_index >= FIMC_MAX_OUT_BUFS)
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vid_cap->buf_index = 0;
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fimc_pending_queue_add(vid_cap, buf);
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min_bufs = vid_cap->reqbufs_count > 1 ? 2 : 1;
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if (vb2_is_streaming(&vid_cap->vbq) &&
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vid_cap->active_buf_cnt >= min_bufs &&
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!test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
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fimc_activate_capture(ctx);
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spin_unlock_irqrestore(&fimc->slock, flags);
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if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
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fimc_pipeline_s_stream(fimc, 1);
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spin_unlock_irqrestore(&fimc->slock, flags);
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static void fimc_lock(struct vb2_queue *vq)
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struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
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mutex_lock(&ctx->fimc_dev->lock);
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static void fimc_unlock(struct vb2_queue *vq)
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struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
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mutex_unlock(&ctx->fimc_dev->lock);
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static struct vb2_ops fimc_capture_qops = {
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.queue_setup = queue_setup,
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.buf_prepare = buffer_prepare,
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.buf_queue = buffer_queue,
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.wait_prepare = fimc_unlock,
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.wait_finish = fimc_lock,
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.start_streaming = start_streaming,
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.stop_streaming = stop_streaming,
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* fimc_capture_ctrls_create - initialize the control handler
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* Initialize the capture video node control handler and fill it
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* with the FIMC controls. Inherit any sensor's controls if the
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* 'user_subdev_api' flag is false (default behaviour).
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* This function need to be called with the graph mutex held.
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int fimc_capture_ctrls_create(struct fimc_dev *fimc)
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struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
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if (WARN_ON(vid_cap->ctx == NULL))
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if (vid_cap->ctx->ctrls_rdy)
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ret = fimc_ctrls_create(vid_cap->ctx);
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if (ret || vid_cap->user_subdev_api)
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return v4l2_ctrl_add_handler(&vid_cap->ctx->ctrl_handler,
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fimc->pipeline.sensor->ctrl_handler);
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static int fimc_capture_set_default_format(struct fimc_dev *fimc);
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static int fimc_capture_open(struct file *file)
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struct fimc_dev *fimc = video_drvdata(file);
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int ret = v4l2_fh_open(file);
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dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
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/* Return if the corresponding video mem2mem node is already opened. */
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if (fimc_m2m_active(fimc))
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set_bit(ST_CAPT_BUSY, &fimc->state);
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pm_runtime_get_sync(&fimc->pdev->dev);
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if (++fimc->vid_cap.refcnt == 1) {
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ret = fimc_pipeline_initialize(fimc,
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&fimc->vid_cap.vfd->entity, true);
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dev_err(&fimc->pdev->dev,
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"Video pipeline initialization failed\n");
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pm_runtime_put_sync(&fimc->pdev->dev);
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fimc->vid_cap.refcnt--;
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v4l2_fh_release(file);
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clear_bit(ST_CAPT_BUSY, &fimc->state);
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ret = fimc_capture_ctrls_create(fimc);
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if (!ret && !fimc->vid_cap.user_subdev_api)
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ret = fimc_capture_set_default_format(fimc);
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static int fimc_capture_close(struct file *file)
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struct fimc_dev *fimc = video_drvdata(file);
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dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
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if (--fimc->vid_cap.refcnt == 0) {
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clear_bit(ST_CAPT_BUSY, &fimc->state);
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fimc_stop_capture(fimc, false);
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fimc_pipeline_shutdown(fimc);
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clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
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pm_runtime_put(&fimc->pdev->dev);
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if (fimc->vid_cap.refcnt == 0) {
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vb2_queue_release(&fimc->vid_cap.vbq);
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fimc_ctrls_delete(fimc->vid_cap.ctx);
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return v4l2_fh_release(file);
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static unsigned int fimc_capture_poll(struct file *file,
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struct poll_table_struct *wait)
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struct fimc_dev *fimc = video_drvdata(file);
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return vb2_poll(&fimc->vid_cap.vbq, file, wait);
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static int fimc_capture_mmap(struct file *file, struct vm_area_struct *vma)
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struct fimc_dev *fimc = video_drvdata(file);
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return vb2_mmap(&fimc->vid_cap.vbq, vma);
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static const struct v4l2_file_operations fimc_capture_fops = {
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.owner = THIS_MODULE,
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.open = fimc_capture_open,
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.release = fimc_capture_close,
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.poll = fimc_capture_poll,
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.unlocked_ioctl = video_ioctl2,
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.mmap = fimc_capture_mmap,
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* Format and crop negotiation helpers
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static struct fimc_fmt *fimc_capture_try_format(struct fimc_ctx *ctx,
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u32 *width, u32 *height,
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u32 *code, u32 *fourcc, int pad)
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bool rotation = ctx->rotation == 90 || ctx->rotation == 270;
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struct fimc_dev *fimc = ctx->fimc_dev;
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struct samsung_fimc_variant *var = fimc->variant;
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struct fimc_pix_limit *pl = var->pix_limit;
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struct fimc_frame *dst = &ctx->d_frame;
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u32 depth, min_w, max_w, min_h, align_h = 3;
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u32 mask = FMT_FLAGS_CAM;
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struct fimc_fmt *ffmt;
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/* Color conversion from/to JPEG is not supported */
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if (code && ctx->s_frame.fmt && pad == FIMC_SD_PAD_SOURCE &&
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fimc_fmt_is_jpeg(ctx->s_frame.fmt->color))
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*code = V4L2_MBUS_FMT_JPEG_1X8;
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if (fourcc && *fourcc != V4L2_PIX_FMT_JPEG && pad != FIMC_SD_PAD_SINK)
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mask |= FMT_FLAGS_M2M;
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ffmt = fimc_find_format(fourcc, code, mask, 0);
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*code = ffmt->mbus_code;
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*fourcc = ffmt->fourcc;
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if (pad == FIMC_SD_PAD_SINK) {
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max_w = fimc_fmt_is_jpeg(ffmt->color) ?
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pl->scaler_dis_w : pl->scaler_en_w;
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/* Apply the camera input interface pixel constraints */
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v4l_bound_align_image(width, max_t(u32, *width, 32), max_w, 4,
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height, max_t(u32, *height, 32),
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FIMC_CAMIF_MAX_HEIGHT,
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fimc_fmt_is_jpeg(ffmt->color) ? 3 : 1,
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/* Can't scale or crop in transparent (JPEG) transfer mode */
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if (fimc_fmt_is_jpeg(ffmt->color)) {
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*width = ctx->s_frame.f_width;
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*height = ctx->s_frame.f_height;
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/* Apply the scaler and the output DMA constraints */
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max_w = rotation ? pl->out_rot_en_w : pl->out_rot_dis_w;
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min_w = ctx->state & FIMC_DST_CROP ? dst->width : var->min_out_pixsize;
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min_h = ctx->state & FIMC_DST_CROP ? dst->height : var->min_out_pixsize;
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if (var->min_vsize_align == 1 && !rotation)
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align_h = fimc_fmt_is_rgb(ffmt->color) ? 0 : 1;
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depth = fimc_get_format_depth(ffmt);
533
v4l_bound_align_image(width, min_w, max_w,
534
ffs(var->min_out_pixsize) - 1,
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height, min_h, FIMC_CAMIF_MAX_HEIGHT,
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64/(ALIGN(depth, 8)));
539
dbg("pad%d: code: 0x%x, %dx%d. dst fmt: %dx%d",
540
pad, code ? *code : 0, *width, *height,
541
dst->f_width, dst->f_height);
546
static void fimc_capture_try_crop(struct fimc_ctx *ctx, struct v4l2_rect *r,
549
bool rotate = ctx->rotation == 90 || ctx->rotation == 270;
550
struct fimc_dev *fimc = ctx->fimc_dev;
551
struct samsung_fimc_variant *var = fimc->variant;
552
struct fimc_pix_limit *pl = var->pix_limit;
553
struct fimc_frame *sink = &ctx->s_frame;
554
u32 max_w, max_h, min_w = 0, min_h = 0, min_sz;
555
u32 align_sz = 0, align_h = 4;
556
u32 max_sc_h, max_sc_v;
558
/* In JPEG transparent transfer mode cropping is not supported */
559
if (fimc_fmt_is_jpeg(ctx->d_frame.fmt->color)) {
560
r->width = sink->f_width;
561
r->height = sink->f_height;
562
r->left = r->top = 0;
565
if (pad == FIMC_SD_PAD_SOURCE) {
566
if (ctx->rotation != 90 && ctx->rotation != 270)
568
max_sc_h = min(SCALER_MAX_HRATIO, 1 << (ffs(sink->width) - 3));
569
max_sc_v = min(SCALER_MAX_VRATIO, 1 << (ffs(sink->height) - 1));
570
min_sz = var->min_out_pixsize;
572
u32 depth = fimc_get_format_depth(sink->fmt);
573
align_sz = 64/ALIGN(depth, 8);
574
min_sz = var->min_inp_pixsize;
575
min_w = min_h = min_sz;
576
max_sc_h = max_sc_v = 1;
579
* For the crop rectangle at source pad the following constraints
581
* - it must fit in the sink pad format rectangle (f_width/f_height);
582
* - maximum downscaling ratio is 64;
583
* - maximum crop size depends if the rotator is used or not;
584
* - the sink pad format width/height must be 4 multiple of the
585
* prescaler ratios determined by sink pad size and source pad crop,
586
* the prescaler ratio is returned by fimc_get_scaler_factor().
589
rotate ? pl->out_rot_en_w : pl->out_rot_dis_w,
590
rotate ? sink->f_height : sink->f_width);
591
max_h = min_t(u32, FIMC_CAMIF_MAX_HEIGHT, sink->f_height);
592
if (pad == FIMC_SD_PAD_SOURCE) {
593
min_w = min_t(u32, max_w, sink->f_width / max_sc_h);
594
min_h = min_t(u32, max_h, sink->f_height / max_sc_v);
596
swap(max_sc_h, max_sc_v);
600
v4l_bound_align_image(&r->width, min_w, max_w, ffs(min_sz) - 1,
601
&r->height, min_h, max_h, align_h,
603
/* Adjust left/top if cropping rectangle is out of bounds */
604
r->left = clamp_t(u32, r->left, 0, sink->f_width - r->width);
605
r->top = clamp_t(u32, r->top, 0, sink->f_height - r->height);
606
r->left = round_down(r->left, var->hor_offs_align);
608
dbg("pad%d: (%d,%d)/%dx%d, sink fmt: %dx%d",
609
pad, r->left, r->top, r->width, r->height,
610
sink->f_width, sink->f_height);
614
* The video node ioctl operations
616
static int fimc_vidioc_querycap_capture(struct file *file, void *priv,
617
struct v4l2_capability *cap)
619
struct fimc_dev *fimc = video_drvdata(file);
621
strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1);
622
strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1);
623
cap->bus_info[0] = 0;
624
cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE_MPLANE;
629
static int fimc_cap_enum_fmt_mplane(struct file *file, void *priv,
630
struct v4l2_fmtdesc *f)
632
struct fimc_fmt *fmt;
634
fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM | FMT_FLAGS_M2M,
638
strncpy(f->description, fmt->name, sizeof(f->description) - 1);
639
f->pixelformat = fmt->fourcc;
640
if (fmt->fourcc == V4L2_MBUS_FMT_JPEG_1X8)
641
f->flags |= V4L2_FMT_FLAG_COMPRESSED;
646
* fimc_pipeline_try_format - negotiate and/or set formats at pipeline
648
* @ctx: FIMC capture context
649
* @tfmt: media bus format to try/set on subdevs
650
* @fmt_id: fimc pixel format id corresponding to returned @tfmt (output)
651
* @set: true to set format on subdevs, false to try only
653
static int fimc_pipeline_try_format(struct fimc_ctx *ctx,
654
struct v4l2_mbus_framefmt *tfmt,
655
struct fimc_fmt **fmt_id,
658
struct fimc_dev *fimc = ctx->fimc_dev;
659
struct v4l2_subdev *sd = fimc->pipeline.sensor;
660
struct v4l2_subdev *csis = fimc->pipeline.csis;
661
struct v4l2_subdev_format sfmt;
662
struct v4l2_mbus_framefmt *mf = &sfmt.format;
663
struct fimc_fmt *ffmt = NULL;
666
if (WARN_ON(!sd || !tfmt))
669
memset(&sfmt, 0, sizeof(sfmt));
672
sfmt.which = set ? V4L2_SUBDEV_FORMAT_ACTIVE : V4L2_SUBDEV_FORMAT_TRY;
674
ffmt = fimc_find_format(NULL, mf->code != 0 ? &mf->code : NULL,
678
* Notify user-space if common pixel code for
679
* host and sensor does not exist.
683
mf->code = tfmt->code = ffmt->mbus_code;
685
ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &sfmt);
688
if (mf->code != tfmt->code) {
692
if (mf->width != tfmt->width || mf->width != tfmt->width) {
693
u32 fcc = ffmt->fourcc;
694
tfmt->width = mf->width;
695
tfmt->height = mf->height;
696
ffmt = fimc_capture_try_format(ctx,
697
&tfmt->width, &tfmt->height,
698
NULL, &fcc, FIMC_SD_PAD_SOURCE);
699
if (ffmt && ffmt->mbus_code)
700
mf->code = ffmt->mbus_code;
701
if (mf->width != tfmt->width || mf->width != tfmt->width)
703
tfmt->code = mf->code;
706
ret = v4l2_subdev_call(csis, pad, set_fmt, NULL, &sfmt);
708
if (mf->code == tfmt->code &&
709
mf->width == tfmt->width && mf->width == tfmt->width)
717
dbg("code: 0x%x, %dx%d, %p", mf->code, mf->width, mf->height, ffmt);
721
static int fimc_cap_g_fmt_mplane(struct file *file, void *fh,
722
struct v4l2_format *f)
724
struct fimc_dev *fimc = video_drvdata(file);
725
struct fimc_ctx *ctx = fimc->vid_cap.ctx;
727
if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
730
return fimc_fill_format(&ctx->d_frame, f);
733
static int fimc_cap_try_fmt_mplane(struct file *file, void *fh,
734
struct v4l2_format *f)
736
struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
737
struct fimc_dev *fimc = video_drvdata(file);
738
struct fimc_ctx *ctx = fimc->vid_cap.ctx;
739
struct v4l2_mbus_framefmt mf;
740
struct fimc_fmt *ffmt = NULL;
742
if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
745
if (pix->pixelformat == V4L2_PIX_FMT_JPEG) {
746
fimc_capture_try_format(ctx, &pix->width, &pix->height,
747
NULL, &pix->pixelformat,
749
ctx->s_frame.f_width = pix->width;
750
ctx->s_frame.f_height = pix->height;
752
ffmt = fimc_capture_try_format(ctx, &pix->width, &pix->height,
753
NULL, &pix->pixelformat,
758
if (!fimc->vid_cap.user_subdev_api) {
759
mf.width = pix->width;
760
mf.height = pix->height;
761
mf.code = ffmt->mbus_code;
762
fimc_md_graph_lock(fimc);
763
fimc_pipeline_try_format(ctx, &mf, &ffmt, false);
764
fimc_md_graph_unlock(fimc);
766
pix->width = mf.width;
767
pix->height = mf.height;
769
pix->pixelformat = ffmt->fourcc;
772
fimc_adjust_mplane_format(ffmt, pix->width, pix->height, pix);
776
static void fimc_capture_mark_jpeg_xfer(struct fimc_ctx *ctx, bool jpeg)
778
ctx->scaler.enabled = !jpeg;
779
fimc_ctrls_activate(ctx, !jpeg);
782
set_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state);
784
clear_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state);
787
static int fimc_capture_set_format(struct fimc_dev *fimc, struct v4l2_format *f)
789
struct fimc_ctx *ctx = fimc->vid_cap.ctx;
790
struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
791
struct v4l2_mbus_framefmt *mf = &fimc->vid_cap.mf;
792
struct fimc_frame *ff = &ctx->d_frame;
793
struct fimc_fmt *s_fmt = NULL;
796
if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
798
if (vb2_is_busy(&fimc->vid_cap.vbq))
801
/* Pre-configure format at camera interface input, for JPEG only */
802
if (pix->pixelformat == V4L2_PIX_FMT_JPEG) {
803
fimc_capture_try_format(ctx, &pix->width, &pix->height,
804
NULL, &pix->pixelformat,
806
ctx->s_frame.f_width = pix->width;
807
ctx->s_frame.f_height = pix->height;
809
/* Try the format at the scaler and the DMA output */
810
ff->fmt = fimc_capture_try_format(ctx, &pix->width, &pix->height,
811
NULL, &pix->pixelformat,
815
/* Try to match format at the host and the sensor */
816
if (!fimc->vid_cap.user_subdev_api) {
817
mf->code = ff->fmt->mbus_code;
818
mf->width = pix->width;
819
mf->height = pix->height;
821
fimc_md_graph_lock(fimc);
822
ret = fimc_pipeline_try_format(ctx, mf, &s_fmt, true);
823
fimc_md_graph_unlock(fimc);
826
pix->width = mf->width;
827
pix->height = mf->height;
829
fimc_adjust_mplane_format(ff->fmt, pix->width, pix->height, pix);
830
for (i = 0; i < ff->fmt->colplanes; i++)
832
(pix->width * pix->height * ff->fmt->depth[i]) / 8;
834
set_frame_bounds(ff, pix->width, pix->height);
835
/* Reset the composition rectangle if not yet configured */
836
if (!(ctx->state & FIMC_DST_CROP))
837
set_frame_crop(ff, 0, 0, pix->width, pix->height);
839
fimc_capture_mark_jpeg_xfer(ctx, fimc_fmt_is_jpeg(ff->fmt->color));
841
/* Reset cropping and set format at the camera interface input */
842
if (!fimc->vid_cap.user_subdev_api) {
843
ctx->s_frame.fmt = s_fmt;
844
set_frame_bounds(&ctx->s_frame, pix->width, pix->height);
845
set_frame_crop(&ctx->s_frame, 0, 0, pix->width, pix->height);
851
static int fimc_cap_s_fmt_mplane(struct file *file, void *priv,
852
struct v4l2_format *f)
854
struct fimc_dev *fimc = video_drvdata(file);
856
return fimc_capture_set_format(fimc, f);
859
static int fimc_cap_enum_input(struct file *file, void *priv,
860
struct v4l2_input *i)
862
struct fimc_dev *fimc = video_drvdata(file);
863
struct v4l2_subdev *sd = fimc->pipeline.sensor;
868
i->type = V4L2_INPUT_TYPE_CAMERA;
870
strlcpy(i->name, sd->name, sizeof(i->name));
874
static int fimc_cap_s_input(struct file *file, void *priv, unsigned int i)
876
return i == 0 ? i : -EINVAL;
879
static int fimc_cap_g_input(struct file *file, void *priv, unsigned int *i)
886
* fimc_pipeline_validate - check for formats inconsistencies
887
* between source and sink pad of each link
889
* Return 0 if all formats match or -EPIPE otherwise.
891
static int fimc_pipeline_validate(struct fimc_dev *fimc)
893
struct v4l2_subdev_format sink_fmt, src_fmt;
894
struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
895
struct v4l2_subdev *sd;
896
struct media_pad *pad;
899
/* Start with the video capture node pad */
900
pad = media_entity_remote_source(&vid_cap->vd_pad);
903
/* FIMC.{N} subdevice */
904
sd = media_entity_to_v4l2_subdev(pad->entity);
907
/* Retrieve format at the sink pad */
908
pad = &sd->entity.pads[0];
909
if (!(pad->flags & MEDIA_PAD_FL_SINK))
911
/* Don't call FIMC subdev operation to avoid nested locking */
912
if (sd == fimc->vid_cap.subdev) {
913
struct fimc_frame *ff = &vid_cap->ctx->s_frame;
914
sink_fmt.format.width = ff->f_width;
915
sink_fmt.format.height = ff->f_height;
916
sink_fmt.format.code = ff->fmt ? ff->fmt->mbus_code : 0;
918
sink_fmt.pad = pad->index;
919
sink_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
920
ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sink_fmt);
921
if (ret < 0 && ret != -ENOIOCTLCMD)
924
/* Retrieve format at the source pad */
925
pad = media_entity_remote_source(pad);
927
media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
930
sd = media_entity_to_v4l2_subdev(pad->entity);
931
src_fmt.pad = pad->index;
932
src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
933
ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt);
934
if (ret < 0 && ret != -ENOIOCTLCMD)
937
if (src_fmt.format.width != sink_fmt.format.width ||
938
src_fmt.format.height != sink_fmt.format.height ||
939
src_fmt.format.code != sink_fmt.format.code)
945
static int fimc_cap_streamon(struct file *file, void *priv,
946
enum v4l2_buf_type type)
948
struct fimc_dev *fimc = video_drvdata(file);
949
struct fimc_pipeline *p = &fimc->pipeline;
952
if (fimc_capture_active(fimc))
955
media_entity_pipeline_start(&p->sensor->entity, p->pipe);
957
if (fimc->vid_cap.user_subdev_api) {
958
ret = fimc_pipeline_validate(fimc);
962
return vb2_streamon(&fimc->vid_cap.vbq, type);
965
static int fimc_cap_streamoff(struct file *file, void *priv,
966
enum v4l2_buf_type type)
968
struct fimc_dev *fimc = video_drvdata(file);
969
struct v4l2_subdev *sd = fimc->pipeline.sensor;
972
ret = vb2_streamoff(&fimc->vid_cap.vbq, type);
974
media_entity_pipeline_stop(&sd->entity);
978
static int fimc_cap_reqbufs(struct file *file, void *priv,
979
struct v4l2_requestbuffers *reqbufs)
981
struct fimc_dev *fimc = video_drvdata(file);
982
int ret = vb2_reqbufs(&fimc->vid_cap.vbq, reqbufs);
985
fimc->vid_cap.reqbufs_count = reqbufs->count;
989
static int fimc_cap_querybuf(struct file *file, void *priv,
990
struct v4l2_buffer *buf)
992
struct fimc_dev *fimc = video_drvdata(file);
994
return vb2_querybuf(&fimc->vid_cap.vbq, buf);
997
static int fimc_cap_qbuf(struct file *file, void *priv,
998
struct v4l2_buffer *buf)
1000
struct fimc_dev *fimc = video_drvdata(file);
1002
return vb2_qbuf(&fimc->vid_cap.vbq, buf);
1005
static int fimc_cap_dqbuf(struct file *file, void *priv,
1006
struct v4l2_buffer *buf)
1008
struct fimc_dev *fimc = video_drvdata(file);
1010
return vb2_dqbuf(&fimc->vid_cap.vbq, buf, file->f_flags & O_NONBLOCK);
1013
static int fimc_cap_cropcap(struct file *file, void *fh,
1014
struct v4l2_cropcap *cr)
1016
struct fimc_dev *fimc = video_drvdata(file);
1017
struct fimc_frame *f = &fimc->vid_cap.ctx->s_frame;
1019
if (cr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1022
cr->bounds.left = 0;
1024
cr->bounds.width = f->o_width;
1025
cr->bounds.height = f->o_height;
1026
cr->defrect = cr->bounds;
1031
static int fimc_cap_g_crop(struct file *file, void *fh, struct v4l2_crop *cr)
1033
struct fimc_dev *fimc = video_drvdata(file);
1034
struct fimc_frame *f = &fimc->vid_cap.ctx->s_frame;
1036
cr->c.left = f->offs_h;
1037
cr->c.top = f->offs_v;
1038
cr->c.width = f->width;
1039
cr->c.height = f->height;
1044
static int fimc_cap_s_crop(struct file *file, void *fh, struct v4l2_crop *cr)
1046
struct fimc_dev *fimc = video_drvdata(file);
1047
struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1048
struct fimc_frame *ff;
1049
unsigned long flags;
1051
fimc_capture_try_crop(ctx, &cr->c, FIMC_SD_PAD_SINK);
1054
spin_lock_irqsave(&fimc->slock, flags);
1055
set_frame_crop(ff, cr->c.left, cr->c.top, cr->c.width, cr->c.height);
1056
set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
1057
spin_unlock_irqrestore(&fimc->slock, flags);
1062
static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = {
1063
.vidioc_querycap = fimc_vidioc_querycap_capture,
1065
.vidioc_enum_fmt_vid_cap_mplane = fimc_cap_enum_fmt_mplane,
1066
.vidioc_try_fmt_vid_cap_mplane = fimc_cap_try_fmt_mplane,
1067
.vidioc_s_fmt_vid_cap_mplane = fimc_cap_s_fmt_mplane,
1068
.vidioc_g_fmt_vid_cap_mplane = fimc_cap_g_fmt_mplane,
1070
.vidioc_reqbufs = fimc_cap_reqbufs,
1071
.vidioc_querybuf = fimc_cap_querybuf,
1073
.vidioc_qbuf = fimc_cap_qbuf,
1074
.vidioc_dqbuf = fimc_cap_dqbuf,
1076
.vidioc_streamon = fimc_cap_streamon,
1077
.vidioc_streamoff = fimc_cap_streamoff,
1079
.vidioc_g_crop = fimc_cap_g_crop,
1080
.vidioc_s_crop = fimc_cap_s_crop,
1081
.vidioc_cropcap = fimc_cap_cropcap,
1083
.vidioc_enum_input = fimc_cap_enum_input,
1084
.vidioc_s_input = fimc_cap_s_input,
1085
.vidioc_g_input = fimc_cap_g_input,
1088
/* Capture subdev media entity operations */
1089
static int fimc_link_setup(struct media_entity *entity,
1090
const struct media_pad *local,
1091
const struct media_pad *remote, u32 flags)
1093
struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
1094
struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1096
if (media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
1099
if (WARN_ON(fimc == NULL))
1102
dbg("%s --> %s, flags: 0x%x. input: 0x%x",
1103
local->entity->name, remote->entity->name, flags,
1104
fimc->vid_cap.input);
1106
if (flags & MEDIA_LNK_FL_ENABLED) {
1107
if (fimc->vid_cap.input != 0)
1109
fimc->vid_cap.input = sd->grp_id;
1113
fimc->vid_cap.input = 0;
1117
static const struct media_entity_operations fimc_sd_media_ops = {
1118
.link_setup = fimc_link_setup,
1122
* fimc_sensor_notify - v4l2_device notification from a sensor subdev
1123
* @sd: pointer to a subdev generating the notification
1124
* @notification: the notification type, must be S5P_FIMC_TX_END_NOTIFY
1125
* @arg: pointer to an u32 type integer that stores the frame payload value
1127
* The End Of Frame notification sent by sensor subdev in its still capture
1128
* mode. If there is only a single VSYNC generated by the sensor at the
1129
* beginning of a frame transmission, FIMC does not issue the LastIrq
1130
* (end of frame) interrupt. And this notification is used to complete the
1131
* frame capture and returning a buffer to user-space. Subdev drivers should
1132
* call this notification from their last 'End of frame capture' interrupt.
1134
void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification,
1137
struct fimc_sensor_info *sensor;
1138
struct fimc_vid_buffer *buf;
1139
struct fimc_md *fmd;
1140
struct fimc_dev *fimc;
1141
unsigned long flags;
1146
sensor = v4l2_get_subdev_hostdata(sd);
1147
fmd = entity_to_fimc_mdev(&sd->entity);
1149
spin_lock_irqsave(&fmd->slock, flags);
1150
fimc = sensor ? sensor->host : NULL;
1152
if (fimc && arg && notification == S5P_FIMC_TX_END_NOTIFY &&
1153
test_bit(ST_CAPT_PEND, &fimc->state)) {
1154
unsigned long irq_flags;
1155
spin_lock_irqsave(&fimc->slock, irq_flags);
1156
if (!list_empty(&fimc->vid_cap.active_buf_q)) {
1157
buf = list_entry(fimc->vid_cap.active_buf_q.next,
1158
struct fimc_vid_buffer, list);
1159
vb2_set_plane_payload(&buf->vb, 0, *((u32 *)arg));
1161
fimc_capture_irq_handler(fimc, true);
1162
fimc_deactivate_capture(fimc);
1163
spin_unlock_irqrestore(&fimc->slock, irq_flags);
1165
spin_unlock_irqrestore(&fmd->slock, flags);
1168
static int fimc_subdev_enum_mbus_code(struct v4l2_subdev *sd,
1169
struct v4l2_subdev_fh *fh,
1170
struct v4l2_subdev_mbus_code_enum *code)
1172
struct fimc_fmt *fmt;
1174
fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, code->index);
1177
code->code = fmt->mbus_code;
1181
static int fimc_subdev_get_fmt(struct v4l2_subdev *sd,
1182
struct v4l2_subdev_fh *fh,
1183
struct v4l2_subdev_format *fmt)
1185
struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1186
struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1187
struct v4l2_mbus_framefmt *mf;
1188
struct fimc_frame *ff;
1190
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1191
mf = v4l2_subdev_get_try_format(fh, fmt->pad);
1196
mf->colorspace = V4L2_COLORSPACE_JPEG;
1197
ff = fmt->pad == FIMC_SD_PAD_SINK ? &ctx->s_frame : &ctx->d_frame;
1199
mutex_lock(&fimc->lock);
1200
/* The pixel code is same on both input and output pad */
1201
if (!WARN_ON(ctx->s_frame.fmt == NULL))
1202
mf->code = ctx->s_frame.fmt->mbus_code;
1203
mf->width = ff->f_width;
1204
mf->height = ff->f_height;
1205
mutex_unlock(&fimc->lock);
1210
static int fimc_subdev_set_fmt(struct v4l2_subdev *sd,
1211
struct v4l2_subdev_fh *fh,
1212
struct v4l2_subdev_format *fmt)
1214
struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1215
struct v4l2_mbus_framefmt *mf = &fmt->format;
1216
struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1217
struct fimc_frame *ff;
1218
struct fimc_fmt *ffmt;
1220
dbg("pad%d: code: 0x%x, %dx%d",
1221
fmt->pad, mf->code, mf->width, mf->height);
1223
if (fmt->pad == FIMC_SD_PAD_SOURCE &&
1224
vb2_is_busy(&fimc->vid_cap.vbq))
1227
mutex_lock(&fimc->lock);
1228
ffmt = fimc_capture_try_format(ctx, &mf->width, &mf->height,
1229
&mf->code, NULL, fmt->pad);
1230
mutex_unlock(&fimc->lock);
1231
mf->colorspace = V4L2_COLORSPACE_JPEG;
1233
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1234
mf = v4l2_subdev_get_try_format(fh, fmt->pad);
1238
fimc_capture_mark_jpeg_xfer(ctx, fimc_fmt_is_jpeg(ffmt->color));
1240
ff = fmt->pad == FIMC_SD_PAD_SINK ?
1241
&ctx->s_frame : &ctx->d_frame;
1243
mutex_lock(&fimc->lock);
1244
set_frame_bounds(ff, mf->width, mf->height);
1245
fimc->vid_cap.mf = *mf;
1248
/* Reset the crop rectangle if required. */
1249
if (!(fmt->pad == FIMC_SD_PAD_SOURCE && (ctx->state & FIMC_DST_CROP)))
1250
set_frame_crop(ff, 0, 0, mf->width, mf->height);
1252
if (fmt->pad == FIMC_SD_PAD_SINK)
1253
ctx->state &= ~FIMC_DST_CROP;
1254
mutex_unlock(&fimc->lock);
1258
static int fimc_subdev_get_crop(struct v4l2_subdev *sd,
1259
struct v4l2_subdev_fh *fh,
1260
struct v4l2_subdev_crop *crop)
1262
struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1263
struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1264
struct v4l2_rect *r = &crop->rect;
1265
struct fimc_frame *ff;
1267
if (crop->which == V4L2_SUBDEV_FORMAT_TRY) {
1268
crop->rect = *v4l2_subdev_get_try_crop(fh, crop->pad);
1271
ff = crop->pad == FIMC_SD_PAD_SINK ?
1272
&ctx->s_frame : &ctx->d_frame;
1274
mutex_lock(&fimc->lock);
1275
r->left = ff->offs_h;
1276
r->top = ff->offs_v;
1277
r->width = ff->width;
1278
r->height = ff->height;
1279
mutex_unlock(&fimc->lock);
1281
dbg("ff:%p, pad%d: l:%d, t:%d, %dx%d, f_w: %d, f_h: %d",
1282
ff, crop->pad, r->left, r->top, r->width, r->height,
1283
ff->f_width, ff->f_height);
1288
static int fimc_subdev_set_crop(struct v4l2_subdev *sd,
1289
struct v4l2_subdev_fh *fh,
1290
struct v4l2_subdev_crop *crop)
1292
struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
1293
struct fimc_ctx *ctx = fimc->vid_cap.ctx;
1294
struct v4l2_rect *r = &crop->rect;
1295
struct fimc_frame *ff;
1296
unsigned long flags;
1298
dbg("(%d,%d)/%dx%d", r->left, r->top, r->width, r->height);
1300
ff = crop->pad == FIMC_SD_PAD_SOURCE ?
1301
&ctx->d_frame : &ctx->s_frame;
1303
mutex_lock(&fimc->lock);
1304
fimc_capture_try_crop(ctx, r, crop->pad);
1306
if (crop->which == V4L2_SUBDEV_FORMAT_TRY) {
1307
mutex_lock(&fimc->lock);
1308
*v4l2_subdev_get_try_crop(fh, crop->pad) = *r;
1311
spin_lock_irqsave(&fimc->slock, flags);
1312
set_frame_crop(ff, r->left, r->top, r->width, r->height);
1313
if (crop->pad == FIMC_SD_PAD_SOURCE)
1314
ctx->state |= FIMC_DST_CROP;
1316
set_bit(ST_CAPT_APPLY_CFG, &fimc->state);
1317
spin_unlock_irqrestore(&fimc->slock, flags);
1319
dbg("pad%d: (%d,%d)/%dx%d", crop->pad, r->left, r->top,
1320
r->width, r->height);
1322
mutex_unlock(&fimc->lock);
1326
static struct v4l2_subdev_pad_ops fimc_subdev_pad_ops = {
1327
.enum_mbus_code = fimc_subdev_enum_mbus_code,
1328
.get_fmt = fimc_subdev_get_fmt,
1329
.set_fmt = fimc_subdev_set_fmt,
1330
.get_crop = fimc_subdev_get_crop,
1331
.set_crop = fimc_subdev_set_crop,
1334
static struct v4l2_subdev_ops fimc_subdev_ops = {
1335
.pad = &fimc_subdev_pad_ops,
1338
static int fimc_create_capture_subdev(struct fimc_dev *fimc,
1339
struct v4l2_device *v4l2_dev)
1341
struct v4l2_subdev *sd;
1344
sd = kzalloc(sizeof(*sd), GFP_KERNEL);
1348
v4l2_subdev_init(sd, &fimc_subdev_ops);
1349
sd->flags = V4L2_SUBDEV_FL_HAS_DEVNODE;
1350
snprintf(sd->name, sizeof(sd->name), "FIMC.%d", fimc->pdev->id);
1352
fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
1353
fimc->vid_cap.sd_pads[FIMC_SD_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
1354
ret = media_entity_init(&sd->entity, FIMC_SD_PADS_NUM,
1355
fimc->vid_cap.sd_pads, 0);
1358
ret = v4l2_device_register_subdev(v4l2_dev, sd);
1362
fimc->vid_cap.subdev = sd;
1363
v4l2_set_subdevdata(sd, fimc);
1364
sd->entity.ops = &fimc_sd_media_ops;
1367
media_entity_cleanup(&sd->entity);
1373
static void fimc_destroy_capture_subdev(struct fimc_dev *fimc)
1375
struct v4l2_subdev *sd = fimc->vid_cap.subdev;
1379
media_entity_cleanup(&sd->entity);
1380
v4l2_device_unregister_subdev(sd);
1382
fimc->vid_cap.subdev = NULL;
1385
/* Set default format at the sensor and host interface */
1386
static int fimc_capture_set_default_format(struct fimc_dev *fimc)
1388
struct v4l2_format fmt = {
1389
.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
1393
.pixelformat = V4L2_PIX_FMT_YUYV,
1394
.field = V4L2_FIELD_NONE,
1395
.colorspace = V4L2_COLORSPACE_JPEG,
1399
return fimc_capture_set_format(fimc, &fmt);
1402
/* fimc->lock must be already initialized */
1403
int fimc_register_capture_device(struct fimc_dev *fimc,
1404
struct v4l2_device *v4l2_dev)
1406
struct video_device *vfd;
1407
struct fimc_vid_cap *vid_cap;
1408
struct fimc_ctx *ctx;
1409
struct vb2_queue *q;
1412
ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
1416
ctx->fimc_dev = fimc;
1417
ctx->in_path = FIMC_CAMERA;
1418
ctx->out_path = FIMC_DMA;
1419
ctx->state = FIMC_CTX_CAP;
1420
ctx->s_frame.fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0);
1421
ctx->d_frame.fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0);
1423
vfd = video_device_alloc();
1425
v4l2_err(v4l2_dev, "Failed to allocate video device\n");
1429
snprintf(vfd->name, sizeof(vfd->name), "%s.capture",
1430
dev_name(&fimc->pdev->dev));
1432
vfd->fops = &fimc_capture_fops;
1433
vfd->ioctl_ops = &fimc_capture_ioctl_ops;
1434
vfd->v4l2_dev = v4l2_dev;
1436
vfd->release = video_device_release;
1437
vfd->lock = &fimc->lock;
1438
video_set_drvdata(vfd, fimc);
1440
vid_cap = &fimc->vid_cap;
1442
vid_cap->active_buf_cnt = 0;
1443
vid_cap->reqbufs_count = 0;
1444
vid_cap->refcnt = 0;
1446
INIT_LIST_HEAD(&vid_cap->pending_buf_q);
1447
INIT_LIST_HEAD(&vid_cap->active_buf_q);
1448
spin_lock_init(&ctx->slock);
1451
q = &fimc->vid_cap.vbq;
1452
memset(q, 0, sizeof(*q));
1453
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1454
q->io_modes = VB2_MMAP | VB2_USERPTR;
1455
q->drv_priv = fimc->vid_cap.ctx;
1456
q->ops = &fimc_capture_qops;
1457
q->mem_ops = &vb2_dma_contig_memops;
1458
q->buf_struct_size = sizeof(struct fimc_vid_buffer);
1462
fimc->vid_cap.vd_pad.flags = MEDIA_PAD_FL_SINK;
1463
ret = media_entity_init(&vfd->entity, 1, &fimc->vid_cap.vd_pad, 0);
1466
ret = fimc_create_capture_subdev(fimc, v4l2_dev);
1470
vfd->ctrl_handler = &ctx->ctrl_handler;
1474
media_entity_cleanup(&vfd->entity);
1476
video_device_release(vfd);
1482
void fimc_unregister_capture_device(struct fimc_dev *fimc)
1484
struct video_device *vfd = fimc->vid_cap.vfd;
1487
media_entity_cleanup(&vfd->entity);
1488
/* Can also be called if video device was
1490
video_unregister_device(vfd);
1492
fimc_destroy_capture_subdev(fimc);
1493
kfree(fimc->vid_cap.ctx);
1494
fimc->vid_cap.ctx = NULL;