diff options
Diffstat (limited to 'drivers/media/video/s5p-fimc/fimc-capture.c')
| -rw-r--r-- | drivers/media/video/s5p-fimc/fimc-capture.c | 1738 |
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); -} |
