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path: root/drivers/media/video/s5p-fimc/fimc-capture.c
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Diffstat (limited to 'drivers/media/video/s5p-fimc/fimc-capture.c')
-rw-r--r--drivers/media/video/s5p-fimc/fimc-capture.c1738
1 files changed, 0 insertions, 1738 deletions
diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c
deleted file mode 100644
index 8e413dd..0000000
--- a/drivers/media/video/s5p-fimc/fimc-capture.c
+++ /dev/null
@@ -1,1738 +0,0 @@
-/*
- * Samsung S5P/EXYNOS4 SoC series camera interface (camera capture) driver
- *
- * Copyright (C) 2010 - 2012 Samsung Electronics Co., Ltd.
- * Sylwester Nawrocki <s.nawrocki@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#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/videobuf2-core.h>
-#include <media/videobuf2-dma-contig.h>
-
-#include "fimc-mdevice.h"
-#include "fimc-core.h"
-#include "fimc-reg.h"
-
-static int fimc_capture_hw_init(struct fimc_dev *fimc)
-{
- struct fimc_ctx *ctx = fimc->vid_cap.ctx;
- struct fimc_pipeline *p = &fimc->pipeline;
- struct fimc_sensor_info *sensor;
- unsigned long flags;
- int ret = 0;
-
- if (p->subdevs[IDX_SENSOR] == NULL || ctx == NULL)
- return -ENXIO;
- if (ctx->s_frame.fmt == NULL)
- return -EINVAL;
-
- sensor = v4l2_get_subdev_hostdata(p->subdevs[IDX_SENSOR]);
-
- 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, sensor->pdata);
- fimc_hw_set_camera_type(fimc, sensor->pdata);
- fimc_hw_set_camera_source(fimc, sensor->pdata);
- 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->variant->has_alpha)
- 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_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_STATE_ERROR);
- }
-
- fimc_hw_reset(fimc);
- cap->buf_index = 0;
-
- spin_unlock_irqrestore(&fimc->slock, flags);
-
- if (streaming)
- return fimc_pipeline_s_stream(&fimc->pipeline, 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
- *
- * 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->variant->has_alpha)
- 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_vid_buffer *v_buf;
- struct timeval *tv;
- struct timespec ts;
-
- 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) {
- ktime_get_real_ts(&ts);
-
- v_buf = fimc_active_queue_pop(cap);
-
- tv = &v_buf->vb.v4l2_buf.timestamp;
- tv->tv_sec = ts.tv_sec;
- tv->tv_usec = ts.tv_nsec / NSEC_PER_USEC;
- v_buf->vb.v4l2_buf.sequence = cap->frame_count++;
-
- vb2_buffer_done(&v_buf->vb, 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;
- }
-
- 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))
- fimc_pipeline_s_stream(&fimc->pipeline, 1);
- }
-
- return 0;
-}
-
-static int 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 -EINVAL;
-
- 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_shutdown(&fimc->pipeline);
-}
-
-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 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_initialize(&fimc->pipeline, &vid_cap->vfd->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);
- }
- return 0;
-
-}
-
-static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *pfmt,
- unsigned int *num_buffers, unsigned int *num_planes,
- unsigned int sizes[], void *allocators[])
-{
- const struct v4l2_pix_format_mplane *pixm = NULL;
- struct fimc_ctx *ctx = vq->drv_priv;
- struct fimc_frame *frame = &ctx->d_frame;
- struct fimc_fmt *fmt = frame->fmt;
- unsigned long wh;
- int i;
-
- if (pfmt) {
- pixm = &pfmt->fmt.pix_mp;
- fmt = fimc_find_format(&pixm->pixelformat, NULL,
- FMT_FLAGS_CAM | FMT_FLAGS_M2M, -1);
- wh = pixm->width * pixm->height;
- } else {
- wh = frame->f_width * frame->f_height;
- }
-
- if (fmt == NULL)
- return -EINVAL;
-
- *num_planes = fmt->memplanes;
-
- for (i = 0; i < fmt->memplanes; i++) {
- unsigned int size = (wh * fmt->depth[i]) / 8;
- if (pixm)
- sizes[i] = max(size, pixm->plane_fmt[i].sizeimage);
- else
- sizes[i] = max_t(u32, size, frame->payload[i]);
-
- allocators[i] = ctx->fimc_dev->alloc_ctx;
- }
-
- 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.vfd,
- "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 fimc_vid_buffer *buf
- = container_of(vb, 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;
- unsigned long flags;
- int min_bufs;
-
- spin_lock_irqsave(&fimc->slock, flags);
- fimc_prepare_addr(ctx, &buf->vb, &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)) {
- fimc_activate_capture(ctx);
- spin_unlock_irqrestore(&fimc->slock, flags);
-
- if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
- fimc_pipeline_s_stream(&fimc->pipeline, 1);
- return;
- }
- spin_unlock_irqrestore(&fimc->slock, flags);
-}
-
-static void fimc_lock(struct vb2_queue *vq)
-{
- struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
- mutex_lock(&ctx->fimc_dev->lock);
-}
-
-static void fimc_unlock(struct vb2_queue *vq)
-{
- struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
- mutex_unlock(&ctx->fimc_dev->lock);
-}
-
-static struct vb2_ops fimc_capture_qops = {
- .queue_setup = queue_setup,
- .buf_prepare = buffer_prepare,
- .buf_queue = buffer_queue,
- .wait_prepare = fimc_unlock,
- .wait_finish = fimc_lock,
- .start_streaming = start_streaming,
- .stop_streaming = stop_streaming,
-};
-
-/**
- * fimc_capture_ctrls_create - initialize the control handler
- * Initialize the capture video node control handler and fill it
- * with the FIMC controls. Inherit any sensor's controls if the
- * 'user_subdev_api' flag is false (default behaviour).
- * This function need to be called with the graph mutex held.
- */
-int fimc_capture_ctrls_create(struct fimc_dev *fimc)
-{
- struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
- int ret;
-
- if (WARN_ON(vid_cap->ctx == NULL))
- return -ENXIO;
- if (vid_cap->ctx->ctrls.ready)
- return 0;
-
- ret = fimc_ctrls_create(vid_cap->ctx);
- if (ret || vid_cap->user_subdev_api || !vid_cap->ctx->ctrls.ready)
- return ret;
-
- return v4l2_ctrl_add_handler(&vid_cap->ctx->ctrls.handler,
- fimc->pipeline.subdevs[IDX_SENSOR]->ctrl_handler);
-}
-
-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);
- int ret = -EBUSY;
-
- dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
-
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
-
- if (fimc_m2m_active(fimc))
- goto unlock;
-
- set_bit(ST_CAPT_BUSY, &fimc->state);
- ret = pm_runtime_get_sync(&fimc->pdev->dev);
- if (ret < 0)
- goto unlock;
-
- ret = v4l2_fh_open(file);
- if (ret) {
- pm_runtime_put(&fimc->pdev->dev);
- goto unlock;
- }
-
- if (++fimc->vid_cap.refcnt == 1) {
- ret = fimc_pipeline_initialize(&fimc->pipeline,
- &fimc->vid_cap.vfd->entity, true);
-
- if (!ret && !fimc->vid_cap.user_subdev_api)
- ret = fimc_capture_set_default_format(fimc);
-
- if (!ret)
- ret = fimc_capture_ctrls_create(fimc);
-
- if (ret < 0) {
- clear_bit(ST_CAPT_BUSY, &fimc->state);
- pm_runtime_put_sync(&fimc->pdev->dev);
- fimc->vid_cap.refcnt--;
- v4l2_fh_release(file);
- }
- }
-unlock:
- mutex_unlock(&fimc->lock);
- return ret;
-}
-
-static int fimc_capture_close(struct file *file)
-{
- struct fimc_dev *fimc = video_drvdata(file);
- int ret;
-
- dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state);
-
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
-
- if (--fimc->vid_cap.refcnt == 0) {
- clear_bit(ST_CAPT_BUSY, &fimc->state);
- fimc_stop_capture(fimc, false);
- fimc_pipeline_shutdown(&fimc->pipeline);
- clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
- }
-
- pm_runtime_put(&fimc->pdev->dev);
-
- if (fimc->vid_cap.refcnt == 0) {
- vb2_queue_release(&fimc->vid_cap.vbq);
- fimc_ctrls_delete(fimc->vid_cap.ctx);
- }
-
- ret = v4l2_fh_release(file);
-
- mutex_unlock(&fimc->lock);
- return ret;
-}
-
-static unsigned int fimc_capture_poll(struct file *file,
- struct poll_table_struct *wait)
-{
- struct fimc_dev *fimc = video_drvdata(file);
- int ret;
-
- if (mutex_lock_interruptible(&fimc->lock))
- return POLL_ERR;
-
- ret = vb2_poll(&fimc->vid_cap.vbq, file, wait);
- mutex_unlock(&fimc->lock);
-
- return ret;
-}
-
-static int fimc_capture_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct fimc_dev *fimc = video_drvdata(file);
- int ret;
-
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
-
- ret = vb2_mmap(&fimc->vid_cap.vbq, vma);
- 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_close,
- .poll = fimc_capture_poll,
- .unlocked_ioctl = video_ioctl2,
- .mmap = fimc_capture_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;
- struct fimc_variant *var = fimc->variant;
- 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;
-
- /* Color conversion from/to JPEG is not supported */
- if (code && ctx->s_frame.fmt && pad == FIMC_SD_PAD_SOURCE &&
- fimc_fmt_is_jpeg(ctx->s_frame.fmt->color))
- *code = V4L2_MBUS_FMT_JPEG_1X8;
-
- if (fourcc && *fourcc != V4L2_PIX_FMT_JPEG && pad != FIMC_SD_PAD_SINK)
- mask |= FMT_FLAGS_M2M;
-
- 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_SINK) {
- max_w = fimc_fmt_is_jpeg(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_jpeg(ffmt->color) ? 3 : 1,
- 0);
- return ffmt;
- }
- /* Can't scale or crop in transparent (JPEG) transfer mode */
- if (fimc_fmt_is_jpeg(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;
- struct fimc_variant *var = fimc->variant;
- 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_jpeg(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) {
- if (ctx->rotation != 90 && ctx->rotation != 270)
- align_h = 1;
- max_sc_h = min(SCALER_MAX_HRATIO, 1 << (ffs(sink->width) - 3));
- max_sc_v = min(SCALER_MAX_VRATIO, 1 << (ffs(sink->height) - 1));
- 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_vidioc_querycap_capture(struct file *file, void *priv,
- struct v4l2_capability *cap)
-{
- struct fimc_dev *fimc = video_drvdata(file);
-
- strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1);
- strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1);
- cap->bus_info[0] = 0;
- cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE_MPLANE;
-
- return 0;
-}
-
-static int fimc_cap_enum_fmt_mplane(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;
- strncpy(f->description, fmt->name, sizeof(f->description) - 1);
- f->pixelformat = fmt->fourcc;
- if (fmt->fourcc == V4L2_MBUS_FMT_JPEG_1X8)
- f->flags |= V4L2_FMT_FLAG_COMPRESSED;
- return 0;
-}
-
-/**
- * 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 v4l2_subdev *sd = fimc->pipeline.subdevs[IDX_SENSOR];
- struct v4l2_subdev *csis = fimc->pipeline.subdevs[IDX_CSIS];
- struct v4l2_subdev_format sfmt;
- struct v4l2_mbus_framefmt *mf = &sfmt.format;
- struct fimc_fmt *ffmt = NULL;
- int ret, i = 0;
-
- 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;
- 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;
-
- ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &sfmt);
- if (ret)
- return ret;
- if (mf->code != tfmt->code) {
- mf->code = 0;
- continue;
- }
- if (mf->width != tfmt->width || mf->height != tfmt->height) {
- u32 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_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;
- }
- if (csis)
- ret = v4l2_subdev_call(csis, pad, set_fmt, NULL, &sfmt);
-
- if (mf->code == tfmt->code &&
- mf->width == tfmt->width && mf->height == tfmt->height)
- break;
- }
-
- if (fmt_id && ffmt)
- *fmt_id = ffmt;
- *tfmt = *mf;
-
- dbg("code: 0x%x, %dx%d, %p", mf->code, mf->width, mf->height, ffmt);
- 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);
- struct fimc_ctx *ctx = fimc->vid_cap.ctx;
-
- return fimc_fill_format(&ctx->d_frame, f);
-}
-
-static int fimc_cap_try_fmt_mplane(struct file *file, void *fh,
- struct v4l2_format *f)
-{
- struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
- struct fimc_dev *fimc = video_drvdata(file);
- struct fimc_ctx *ctx = fimc->vid_cap.ctx;
- struct v4l2_mbus_framefmt mf;
- struct fimc_fmt *ffmt = NULL;
-
- if (pix->pixelformat == V4L2_PIX_FMT_JPEG) {
- fimc_capture_try_format(ctx, &pix->width, &pix->height,
- NULL, &pix->pixelformat,
- FIMC_SD_PAD_SINK);
- ctx->s_frame.f_width = pix->width;
- ctx->s_frame.f_height = pix->height;
- }
- ffmt = fimc_capture_try_format(ctx, &pix->width, &pix->height,
- NULL, &pix->pixelformat,
- FIMC_SD_PAD_SOURCE);
- if (!ffmt)
- return -EINVAL;
-
- if (!fimc->vid_cap.user_subdev_api) {
- mf.width = pix->width;
- mf.height = pix->height;
- mf.code = ffmt->mbus_code;
- fimc_md_graph_lock(fimc);
- fimc_pipeline_try_format(ctx, &mf, &ffmt, false);
- fimc_md_graph_unlock(fimc);
-
- pix->width = mf.width;
- pix->height = mf.height;
- if (ffmt)
- pix->pixelformat = ffmt->fourcc;
- }
-
- fimc_adjust_mplane_format(ffmt, pix->width, pix->height, pix);
- return 0;
-}
-
-static void fimc_capture_mark_jpeg_xfer(struct fimc_ctx *ctx, bool jpeg)
-{
- 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_ctx *ctx = fimc->vid_cap.ctx;
- struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
- struct v4l2_mbus_framefmt *mf = &fimc->vid_cap.mf;
- struct fimc_frame *ff = &ctx->d_frame;
- struct fimc_fmt *s_fmt = NULL;
- int ret, i;
-
- if (vb2_is_busy(&fimc->vid_cap.vbq))
- return -EBUSY;
-
- /* Pre-configure format at camera interface input, for JPEG only */
- if (pix->pixelformat == V4L2_PIX_FMT_JPEG) {
- fimc_capture_try_format(ctx, &pix->width, &pix->height,
- NULL, &pix->pixelformat,
- FIMC_SD_PAD_SINK);
- ctx->s_frame.f_width = pix->width;
- ctx->s_frame.f_height = pix->height;
- }
- /* Try the format at the scaler and the DMA output */
- ff->fmt = fimc_capture_try_format(ctx, &pix->width, &pix->height,
- NULL, &pix->pixelformat,
- FIMC_SD_PAD_SOURCE);
- if (!ff->fmt)
- return -EINVAL;
-
- /* Update RGB Alpha control state and value range */
- fimc_alpha_ctrl_update(ctx);
-
- /* Try to match format at the host and the sensor */
- if (!fimc->vid_cap.user_subdev_api) {
- mf->code = ff->fmt->mbus_code;
- mf->width = pix->width;
- mf->height = pix->height;
-
- fimc_md_graph_lock(fimc);
- ret = fimc_pipeline_try_format(ctx, mf, &s_fmt, true);
- fimc_md_graph_unlock(fimc);
- if (ret)
- return ret;
- pix->width = mf->width;
- pix->height = mf->height;
- }
-
- fimc_adjust_mplane_format(ff->fmt, pix->width, pix->height, pix);
- for (i = 0; i < ff->fmt->colplanes; i++)
- 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, fimc_fmt_is_jpeg(ff->fmt->color));
-
- /* Reset cropping and set format at the camera interface input */
- if (!fimc->vid_cap.user_subdev_api) {
- ctx->s_frame.fmt = s_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 v4l2_subdev *sd = fimc->pipeline.subdevs[IDX_SENSOR];
-
- if (i->index != 0)
- return -EINVAL;
-
- i->type = V4L2_INPUT_TYPE_CAMERA;
- if (sd)
- strlcpy(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
- *
- * 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 *vid_cap = &fimc->vid_cap;
- struct v4l2_subdev *sd;
- struct media_pad *pad;
- int ret;
-
- /* Start with the video capture node pad */
- pad = media_entity_remote_source(&vid_cap->vd_pad);
- if (pad == NULL)
- return -EPIPE;
- /* FIMC.{N} subdevice */
- sd = media_entity_to_v4l2_subdev(pad->entity);
-
- while (1) {
- /* Retrieve format at the sink pad */
- pad = &sd->entity.pads[0];
- if (!(pad->flags & MEDIA_PAD_FL_SINK))
- break;
- /* Don't call FIMC subdev operation to avoid nested locking */
- if (sd == &fimc->vid_cap.subdev) {
- struct fimc_frame *ff = &vid_cap->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 = 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 */
- pad = media_entity_remote_source(pad);
- if (pad == NULL ||
- media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
- break;
-
- sd = media_entity_to_v4l2_subdev(pad->entity);
- src_fmt.pad = 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;
- }
- 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_pipeline *p = &fimc->pipeline;
- struct v4l2_subdev *sd = p->subdevs[IDX_SENSOR];
- int ret;
-
- if (fimc_capture_active(fimc))
- return -EBUSY;
-
- ret = media_entity_pipeline_start(&sd->entity, p->m_pipeline);
- if (ret < 0)
- return ret;
-
- if (fimc->vid_cap.user_subdev_api) {
- ret = fimc_pipeline_validate(fimc);
- if (ret < 0) {
- media_entity_pipeline_stop(&sd->entity);
- return ret;
- }
- }
- return vb2_streamon(&fimc->vid_cap.vbq, type);
-}
-
-static int fimc_cap_streamoff(struct file *file, void *priv,
- enum v4l2_buf_type type)
-{
- struct fimc_dev *fimc = video_drvdata(file);
- struct v4l2_subdev *sd = fimc->pipeline.subdevs[IDX_SENSOR];
- int ret;
-
- ret = vb2_streamoff(&fimc->vid_cap.vbq, type);
- if (ret == 0)
- media_entity_pipeline_stop(&sd->entity);
- return ret;
-}
-
-static int fimc_cap_reqbufs(struct file *file, void *priv,
- struct v4l2_requestbuffers *reqbufs)
-{
- struct fimc_dev *fimc = video_drvdata(file);
- int ret = vb2_reqbufs(&fimc->vid_cap.vbq, reqbufs);
-
- if (!ret)
- fimc->vid_cap.reqbufs_count = reqbufs->count;
- return ret;
-}
-
-static int fimc_cap_querybuf(struct file *file, void *priv,
- struct v4l2_buffer *buf)
-{
- struct fimc_dev *fimc = video_drvdata(file);
-
- return vb2_querybuf(&fimc->vid_cap.vbq, buf);
-}
-
-static int fimc_cap_qbuf(struct file *file, void *priv,
- struct v4l2_buffer *buf)
-{
- struct fimc_dev *fimc = video_drvdata(file);
-
- return vb2_qbuf(&fimc->vid_cap.vbq, buf);
-}
-
-static int fimc_cap_dqbuf(struct file *file, void *priv,
- struct v4l2_buffer *buf)
-{
- struct fimc_dev *fimc = video_drvdata(file);
-
- return vb2_dqbuf(&fimc->vid_cap.vbq, buf, file->f_flags & O_NONBLOCK);
-}
-
-static int fimc_cap_create_bufs(struct file *file, void *priv,
- struct v4l2_create_buffers *create)
-{
- struct fimc_dev *fimc = video_drvdata(file);
-
- return vb2_create_bufs(&fimc->vid_cap.vbq, create);
-}
-
-static int fimc_cap_prepare_buf(struct file *file, void *priv,
- struct v4l2_buffer *b)
-{
- struct fimc_dev *fimc = video_drvdata(file);
-
- return vb2_prepare_buf(&fimc->vid_cap.vbq, b);
-}
-
-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_MPLANE)
- return -EINVAL;
-
- switch (s->target) {
- case V4L2_SEL_TGT_COMPOSE_DEFAULT:
- case V4L2_SEL_TGT_COMPOSE_BOUNDS:
- f = &ctx->d_frame;
- 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;
- 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;
-}
-
-/* Return 1 if rectangle a is enclosed in rectangle b, or 0 otherwise. */
-static int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b)
-{
- if (a->left < b->left || a->top < b->top)
- return 0;
- if (a->left + a->width > b->left + b->width)
- return 0;
- if (a->top + a->height > b->top + b->height)
- return 0;
-
- return 1;
-}
-
-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_MPLANE)
- 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 &&
- !enclosed_rectangle(&rect, &s->r))
- return -ERANGE;
-
- if (s->flags & V4L2_SEL_FLAG_GE &&
- !enclosed_rectangle(&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_vidioc_querycap_capture,
-
- .vidioc_enum_fmt_vid_cap_mplane = fimc_cap_enum_fmt_mplane,
- .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 = fimc_cap_querybuf,
-
- .vidioc_qbuf = fimc_cap_qbuf,
- .vidioc_dqbuf = fimc_cap_dqbuf,
-
- .vidioc_prepare_buf = fimc_cap_prepare_buf,
- .vidioc_create_bufs = fimc_cap_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);
-
- if (media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
- 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) {
- if (fimc->vid_cap.input != 0)
- return -EBUSY;
- fimc->vid_cap.input = sd->grp_id;
- return 0;
- }
-
- fimc->vid_cap.input = 0;
- return 0;
-}
-
-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_sensor_info *sensor;
- struct fimc_vid_buffer *buf;
- struct fimc_md *fmd;
- struct fimc_dev *fimc;
- unsigned long flags;
-
- if (sd == NULL)
- return;
-
- sensor = v4l2_get_subdev_hostdata(sd);
- fmd = entity_to_fimc_mdev(&sd->entity);
-
- spin_lock_irqsave(&fmd->slock, flags);
- fimc = sensor ? sensor->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, 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_fh *fh,
- 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_fh *fh,
- struct v4l2_subdev_format *fmt)
-{
- struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
- struct fimc_ctx *ctx = fimc->vid_cap.ctx;
- struct v4l2_mbus_framefmt *mf;
- struct fimc_frame *ff;
-
- if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
- mf = v4l2_subdev_get_try_format(fh, fmt->pad);
- fmt->format = *mf;
- return 0;
- }
- mf = &fmt->format;
- mf->colorspace = V4L2_COLORSPACE_JPEG;
- ff = fmt->pad == FIMC_SD_PAD_SINK ? &ctx->s_frame : &ctx->d_frame;
-
- mutex_lock(&fimc->lock);
- /* The pixel code is same on both input and output pad */
- if (!WARN_ON(ctx->s_frame.fmt == NULL))
- mf->code = ctx->s_frame.fmt->mbus_code;
- mf->width = ff->f_width;
- mf->height = ff->f_height;
- mutex_unlock(&fimc->lock);
-
- return 0;
-}
-
-static int fimc_subdev_set_fmt(struct v4l2_subdev *sd,
- struct v4l2_subdev_fh *fh,
- struct v4l2_subdev_format *fmt)
-{
- struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
- struct v4l2_mbus_framefmt *mf = &fmt->format;
- struct fimc_ctx *ctx = fimc->vid_cap.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(&fimc->vid_cap.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(fh, fmt->pad);
- *mf = fmt->format;
- return 0;
- }
- /* Update RGB Alpha control state and value range */
- fimc_alpha_ctrl_update(ctx);
-
- fimc_capture_mark_jpeg_xfer(ctx, fimc_fmt_is_jpeg(ffmt->color));
-
- ff = fmt->pad == FIMC_SD_PAD_SINK ?
- &ctx->s_frame : &ctx->d_frame;
-
- mutex_lock(&fimc->lock);
- set_frame_bounds(ff, mf->width, mf->height);
- fimc->vid_cap.mf = *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_SINK)
- ctx->state &= ~FIMC_COMPOSE;
- mutex_unlock(&fimc->lock);
- return 0;
-}
-
-static int fimc_subdev_get_selection(struct v4l2_subdev *sd,
- struct v4l2_subdev_fh *fh,
- 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_SINK)
- return -EINVAL;
-
- mutex_lock(&fimc->lock);
-
- switch (sel->target) {
- case V4L2_SEL_TGT_COMPOSE_BOUNDS:
- f = &ctx->d_frame;
- 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(fh, sel->pad);
- break;
- case V4L2_SEL_TGT_COMPOSE:
- try_sel = v4l2_subdev_get_try_compose(fh, 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_fh *fh,
- 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_SINK)
- return -EINVAL;
-
- mutex_lock(&fimc->lock);
- fimc_capture_try_selection(ctx, r, V4L2_SEL_TGT_CROP);
-
- switch (sel->target) {
- case V4L2_SEL_TGT_COMPOSE_BOUNDS:
- f = &ctx->d_frame;
- 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(fh, sel->pad);
- break;
- case V4L2_SEL_TGT_COMPOSE:
- try_sel = v4l2_subdev_get_try_compose(fh, 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);
- spin_unlock_irqrestore(&fimc->slock, flags);
- if (sel->target == V4L2_SEL_TGT_COMPOSE)
- ctx->state |= FIMC_COMPOSE;
- }
-
- dbg("target %#x: (%d,%d)/%dx%d", sel->target, r->left, r->top,
- r->width, r->height);
-
- mutex_unlock(&fimc->lock);
- return 0;
-}
-
-static 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 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 = 640,
- .height = 480,
- .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;
- struct fimc_vid_cap *vid_cap;
- struct fimc_ctx *ctx;
- struct vb2_queue *q;
- 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;
-
- vfd = video_device_alloc();
- if (!vfd) {
- v4l2_err(v4l2_dev, "Failed to allocate video device\n");
- goto err_vd_alloc;
- }
-
- 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;
- vfd->lock = &fimc->lock;
-
- video_set_drvdata(vfd, fimc);
-
- vid_cap = &fimc->vid_cap;
- vid_cap->vfd = vfd;
- vid_cap->active_buf_cnt = 0;
- vid_cap->reqbufs_count = 0;
- vid_cap->refcnt = 0;
-
- INIT_LIST_HEAD(&vid_cap->pending_buf_q);
- INIT_LIST_HEAD(&vid_cap->active_buf_q);
- vid_cap->ctx = ctx;
-
- q = &fimc->vid_cap.vbq;
- memset(q, 0, sizeof(*q));
- q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
- q->io_modes = VB2_MMAP | VB2_USERPTR;
- q->drv_priv = fimc->vid_cap.ctx;
- q->ops = &fimc_capture_qops;
- q->mem_ops = &vb2_dma_contig_memops;
- q->buf_struct_size = sizeof(struct fimc_vid_buffer);
-
- vb2_queue_init(q);
-
- vid_cap->vd_pad.flags = MEDIA_PAD_FL_SINK;
- ret = media_entity_init(&vfd->entity, 1, &vid_cap->vd_pad, 0);
- if (ret)
- goto err_ent;
-
- ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
- if (ret)
- goto err_vd;
-
- 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_vd:
- media_entity_cleanup(&vfd->entity);
-err_ent:
- video_device_release(vfd);
-err_vd_alloc:
- kfree(ctx);
- return ret;
-}
-
-static int fimc_capture_subdev_registered(struct v4l2_subdev *sd)
-{
- struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
- int ret;
-
- ret = fimc_register_m2m_device(fimc, sd->v4l2_dev);
- if (ret)
- return ret;
-
- ret = fimc_register_capture_device(fimc, sd->v4l2_dev);
- if (ret)
- fimc_unregister_m2m_device(fimc);
-
- return ret;
-}
-
-static void fimc_capture_subdev_unregistered(struct v4l2_subdev *sd)
-{
- struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
-
- if (fimc == NULL)
- return;
-
- fimc_unregister_m2m_device(fimc);
-
- if (fimc->vid_cap.vfd) {
- media_entity_cleanup(&fimc->vid_cap.vfd->entity);
- video_unregister_device(fimc->vid_cap.vfd);
- fimc->vid_cap.vfd = NULL;
- }
-
- kfree(fimc->vid_cap.ctx);
- fimc->vid_cap.ctx = NULL;
-}
-
-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->pdev->id);
-
- fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
- fimc->vid_cap.sd_pads[FIMC_SD_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
- ret = media_entity_init(&sd->entity, FIMC_SD_PADS_NUM,
- fimc->vid_cap.sd_pads, 0);
- if (ret)
- return ret;
-
- sd->entity.ops = &fimc_sd_media_ops;
- 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);
-}
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