| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Sylwester Nawrocki | 9579 | 94.86% | 76 | 66.67% |
| Marek Szyprowski | 135 | 1.34% | 2 | 1.75% |
| Sungchun Kang | 113 | 1.12% | 1 | 0.88% |
| Hans Verkuil | 111 | 1.10% | 7 | 6.14% |
| Andrzej Hajda | 42 | 0.42% | 3 | 2.63% |
| Mauro Carvalho Chehab | 41 | 0.41% | 7 | 6.14% |
| Junghak Sung | 31 | 0.31% | 3 | 2.63% |
| Sakari Ailus | 12 | 0.12% | 3 | 2.63% |
| Tomasz Stanislawski | 8 | 0.08% | 2 | 1.75% |
| Hyunwoong Kim | 6 | 0.06% | 1 | 0.88% |
| Kamil Debski | 5 | 0.05% | 1 | 0.88% |
| Sachin Kamat | 4 | 0.04% | 2 | 1.75% |
| Julia Lawall | 3 | 0.03% | 2 | 1.75% |
| Ricardo Ribalda Delgado | 3 | 0.03% | 1 | 0.88% |
| Thomas Gleixner | 2 | 0.02% | 1 | 0.88% |
| Bhumika Goyal | 2 | 0.02% | 1 | 0.88% |
| Boris Brezillon | 1 | 0.01% | 1 | 0.88% |
| Total | 10098 | 114 |
// SPDX-License-Identifier: GPL-2.0-only /* * Samsung S5P/EXYNOS4 SoC series camera interface (camera capture) driver * * Copyright (C) 2010 - 2012 Samsung Electronics Co., Ltd. * Sylwester Nawrocki <s.nawrocki@samsung.com> */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/types.h> #include <linux/errno.h> #include <linux/bug.h> #include <linux/interrupt.h> #include <linux/device.h> #include <linux/pm_runtime.h> #include <linux/list.h> #include <linux/slab.h> #include <linux/videodev2.h> #include <media/v4l2-device.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-mem2mem.h> #include <media/videobuf2-v4l2.h> #include <media/videobuf2-dma-contig.h> #include "common.h" #include "fimc-core.h" #include "fimc-reg.h" #include "media-dev.h" static int fimc_capture_hw_init(struct fimc_dev *fimc) { struct fimc_source_info *si = &fimc->vid_cap.source_config; struct fimc_ctx *ctx = fimc->vid_cap.ctx; int ret; unsigned long flags; if (ctx == NULL || ctx->s_frame.fmt == NULL) return -EINVAL; if (si->fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK) { ret = fimc_hw_camblk_cfg_writeback(fimc); if (ret < 0) return ret; } spin_lock_irqsave(&fimc->slock, flags); fimc_prepare_dma_offset(ctx, &ctx->d_frame); fimc_set_yuv_order(ctx); fimc_hw_set_camera_polarity(fimc, si); fimc_hw_set_camera_type(fimc, si); fimc_hw_set_camera_source(fimc, si); fimc_hw_set_camera_offset(fimc, &ctx->s_frame); ret = fimc_set_scaler_info(ctx); if (!ret) { fimc_hw_set_input_path(ctx); fimc_hw_set_prescaler(ctx); fimc_hw_set_mainscaler(ctx); fimc_hw_set_target_format(ctx); fimc_hw_set_rotation(ctx); fimc_hw_set_effect(ctx); fimc_hw_set_output_path(ctx); fimc_hw_set_out_dma(ctx); if (fimc->drv_data->alpha_color) fimc_hw_set_rgb_alpha(ctx); clear_bit(ST_CAPT_APPLY_CFG, &fimc->state); } spin_unlock_irqrestore(&fimc->slock, flags); return ret; } /* * Reinitialize the driver so it is ready to start the streaming again. * Set fimc->state to indicate stream off and the hardware shut down state. * If not suspending (@suspend is false), return any buffers to videobuf2. * Otherwise put any owned buffers onto the pending buffers queue, so they * can be re-spun when the device is being resumed. Also perform FIMC * software reset and disable streaming on the whole pipeline if required. */ static int fimc_capture_state_cleanup(struct fimc_dev *fimc, bool suspend) { struct fimc_vid_cap *cap = &fimc->vid_cap; struct fimc_vid_buffer *buf; unsigned long flags; bool streaming; spin_lock_irqsave(&fimc->slock, flags); streaming = fimc->state & (1 << ST_CAPT_ISP_STREAM); fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_SHUT | 1 << ST_CAPT_STREAM | 1 << ST_CAPT_ISP_STREAM); if (suspend) fimc->state |= (1 << ST_CAPT_SUSPENDED); else fimc->state &= ~(1 << ST_CAPT_PEND | 1 << ST_CAPT_SUSPENDED); /* Release unused buffers */ while (!suspend && !list_empty(&cap->pending_buf_q)) { buf = fimc_pending_queue_pop(cap); vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); } /* If suspending put unused buffers onto pending queue */ while (!list_empty(&cap->active_buf_q)) { buf = fimc_active_queue_pop(cap); if (suspend) fimc_pending_queue_add(cap, buf); else vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); } fimc_hw_reset(fimc); cap->buf_index = 0; spin_unlock_irqrestore(&fimc->slock, flags); if (streaming) return fimc_pipeline_call(&cap->ve, set_stream, 0); else return 0; } static int fimc_stop_capture(struct fimc_dev *fimc, bool suspend) { unsigned long flags; if (!fimc_capture_active(fimc)) return 0; spin_lock_irqsave(&fimc->slock, flags); set_bit(ST_CAPT_SHUT, &fimc->state); fimc_deactivate_capture(fimc); spin_unlock_irqrestore(&fimc->slock, flags); wait_event_timeout(fimc->irq_queue, !test_bit(ST_CAPT_SHUT, &fimc->state), (2*HZ/10)); /* 200 ms */ return fimc_capture_state_cleanup(fimc, suspend); } /** * fimc_capture_config_update - apply the camera interface configuration * @ctx: FIMC capture context * * To be called from within the interrupt handler with fimc.slock * spinlock held. It updates the camera pixel crop, rotation and * image flip in H/W. */ static int fimc_capture_config_update(struct fimc_ctx *ctx) { struct fimc_dev *fimc = ctx->fimc_dev; int ret; fimc_hw_set_camera_offset(fimc, &ctx->s_frame); ret = fimc_set_scaler_info(ctx); if (ret) return ret; fimc_hw_set_prescaler(ctx); fimc_hw_set_mainscaler(ctx); fimc_hw_set_target_format(ctx); fimc_hw_set_rotation(ctx); fimc_hw_set_effect(ctx); fimc_prepare_dma_offset(ctx, &ctx->d_frame); fimc_hw_set_out_dma(ctx); if (fimc->drv_data->alpha_color) fimc_hw_set_rgb_alpha(ctx); clear_bit(ST_CAPT_APPLY_CFG, &fimc->state); return ret; } void fimc_capture_irq_handler(struct fimc_dev *fimc, int deq_buf) { struct fimc_vid_cap *cap = &fimc->vid_cap; struct fimc_pipeline *p = to_fimc_pipeline(cap->ve.pipe); struct v4l2_subdev *csis = p->subdevs[IDX_CSIS]; struct fimc_frame *f = &cap->ctx->d_frame; struct fimc_vid_buffer *v_buf; if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) { wake_up(&fimc->irq_queue); goto done; } if (!list_empty(&cap->active_buf_q) && test_bit(ST_CAPT_RUN, &fimc->state) && deq_buf) { v_buf = fimc_active_queue_pop(cap); v_buf->vb.vb2_buf.timestamp = ktime_get_ns(); v_buf->vb.sequence = cap->frame_count++; vb2_buffer_done(&v_buf->vb.vb2_buf, VB2_BUF_STATE_DONE); } if (!list_empty(&cap->pending_buf_q)) { v_buf = fimc_pending_queue_pop(cap); fimc_hw_set_output_addr(fimc, &v_buf->paddr, cap->buf_index); v_buf->index = cap->buf_index; /* Move the buffer to the capture active queue */ fimc_active_queue_add(cap, v_buf); dbg("next frame: %d, done frame: %d", fimc_hw_get_frame_index(fimc), v_buf->index); if (++cap->buf_index >= FIMC_MAX_OUT_BUFS) cap->buf_index = 0; } /* * Set up a buffer at MIPI-CSIS if current image format * requires the frame embedded data capture. */ if (f->fmt->mdataplanes && !list_empty(&cap->active_buf_q)) { unsigned int plane = ffs(f->fmt->mdataplanes) - 1; unsigned int size = f->payload[plane]; s32 index = fimc_hw_get_frame_index(fimc); void *vaddr; list_for_each_entry(v_buf, &cap->active_buf_q, list) { if (v_buf->index != index) continue; vaddr = vb2_plane_vaddr(&v_buf->vb.vb2_buf, plane); v4l2_subdev_call(csis, video, s_rx_buffer, vaddr, &size); break; } } if (cap->active_buf_cnt == 0) { if (deq_buf) clear_bit(ST_CAPT_RUN, &fimc->state); if (++cap->buf_index >= FIMC_MAX_OUT_BUFS) cap->buf_index = 0; } else { set_bit(ST_CAPT_RUN, &fimc->state); } if (test_bit(ST_CAPT_APPLY_CFG, &fimc->state)) fimc_capture_config_update(cap->ctx); done: if (cap->active_buf_cnt == 1) { fimc_deactivate_capture(fimc); clear_bit(ST_CAPT_STREAM, &fimc->state); } dbg("frame: %d, active_buf_cnt: %d", fimc_hw_get_frame_index(fimc), cap->active_buf_cnt); } static int start_streaming(struct vb2_queue *q, unsigned int count) { struct fimc_ctx *ctx = q->drv_priv; struct fimc_dev *fimc = ctx->fimc_dev; struct fimc_vid_cap *vid_cap = &fimc->vid_cap; int min_bufs; int ret; vid_cap->frame_count = 0; ret = fimc_capture_hw_init(fimc); if (ret) { fimc_capture_state_cleanup(fimc, false); return ret; } set_bit(ST_CAPT_PEND, &fimc->state); min_bufs = fimc->vid_cap.reqbufs_count > 1 ? 2 : 1; if (vid_cap->active_buf_cnt >= min_bufs && !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) { fimc_activate_capture(ctx); if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state)) return fimc_pipeline_call(&vid_cap->ve, set_stream, 1); } return 0; } static void stop_streaming(struct vb2_queue *q) { struct fimc_ctx *ctx = q->drv_priv; struct fimc_dev *fimc = ctx->fimc_dev; if (!fimc_capture_active(fimc)) return; fimc_stop_capture(fimc, false); } int fimc_capture_suspend(struct fimc_dev *fimc) { bool suspend = fimc_capture_busy(fimc); int ret = fimc_stop_capture(fimc, suspend); if (ret) return ret; return fimc_pipeline_call(&fimc->vid_cap.ve, close); } static void buffer_queue(struct vb2_buffer *vb); int fimc_capture_resume(struct fimc_dev *fimc) { struct fimc_vid_cap *vid_cap = &fimc->vid_cap; struct exynos_video_entity *ve = &vid_cap->ve; struct fimc_vid_buffer *buf; int i; if (!test_and_clear_bit(ST_CAPT_SUSPENDED, &fimc->state)) return 0; INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q); vid_cap->buf_index = 0; fimc_pipeline_call(ve, open, &ve->vdev.entity, false); fimc_capture_hw_init(fimc); clear_bit(ST_CAPT_SUSPENDED, &fimc->state); for (i = 0; i < vid_cap->reqbufs_count; i++) { if (list_empty(&vid_cap->pending_buf_q)) break; buf = fimc_pending_queue_pop(vid_cap); buffer_queue(&buf->vb.vb2_buf); } return 0; } static int queue_setup(struct vb2_queue *vq, unsigned int *num_buffers, unsigned int *num_planes, unsigned int sizes[], struct device *alloc_devs[]) { struct fimc_ctx *ctx = vq->drv_priv; struct fimc_frame *frame = &ctx->d_frame; struct fimc_fmt *fmt = frame->fmt; unsigned long wh = frame->f_width * frame->f_height; int i; if (fmt == NULL) return -EINVAL; if (*num_planes) { if (*num_planes != fmt->memplanes) return -EINVAL; for (i = 0; i < *num_planes; i++) if (sizes[i] < (wh * fmt->depth[i]) / 8) return -EINVAL; return 0; } *num_planes = fmt->memplanes; for (i = 0; i < fmt->memplanes; i++) { unsigned int size = (wh * fmt->depth[i]) / 8; if (fimc_fmt_is_user_defined(fmt->color)) sizes[i] = frame->payload[i]; else sizes[i] = max_t(u32, size, frame->payload[i]); } return 0; } static int buffer_prepare(struct vb2_buffer *vb) { struct vb2_queue *vq = vb->vb2_queue; struct fimc_ctx *ctx = vq->drv_priv; int i; if (ctx->d_frame.fmt == NULL) return -EINVAL; for (i = 0; i < ctx->d_frame.fmt->memplanes; i++) { unsigned long size = ctx->d_frame.payload[i]; if (vb2_plane_size(vb, i) < size) { v4l2_err(&ctx->fimc_dev->vid_cap.ve.vdev, "User buffer too small (%ld < %ld)\n", vb2_plane_size(vb, i), size); return -EINVAL; } vb2_set_plane_payload(vb, i, size); } return 0; } static void buffer_queue(struct vb2_buffer *vb) { struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); struct fimc_vid_buffer *buf = container_of(vbuf, struct fimc_vid_buffer, vb); struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); struct fimc_dev *fimc = ctx->fimc_dev; struct fimc_vid_cap *vid_cap = &fimc->vid_cap; struct exynos_video_entity *ve = &vid_cap->ve; unsigned long flags; int min_bufs; spin_lock_irqsave(&fimc->slock, flags); fimc_prepare_addr(ctx, &buf->vb.vb2_buf, &ctx->d_frame, &buf->paddr); if (!test_bit(ST_CAPT_SUSPENDED, &fimc->state) && !test_bit(ST_CAPT_STREAM, &fimc->state) && vid_cap->active_buf_cnt < FIMC_MAX_OUT_BUFS) { /* Setup the buffer directly for processing. */ int buf_id = (vid_cap->reqbufs_count == 1) ? -1 : vid_cap->buf_index; fimc_hw_set_output_addr(fimc, &buf->paddr, buf_id); buf->index = vid_cap->buf_index; fimc_active_queue_add(vid_cap, buf); if (++vid_cap->buf_index >= FIMC_MAX_OUT_BUFS) vid_cap->buf_index = 0; } else { fimc_pending_queue_add(vid_cap, buf); } min_bufs = vid_cap->reqbufs_count > 1 ? 2 : 1; if (vb2_is_streaming(&vid_cap->vbq) && vid_cap->active_buf_cnt >= min_bufs && !test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) { int ret; fimc_activate_capture(ctx); spin_unlock_irqrestore(&fimc->slock, flags); if (test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state)) return; ret = fimc_pipeline_call(ve, set_stream, 1); if (ret < 0) v4l2_err(&ve->vdev, "stream on failed: %d\n", ret); return; } spin_unlock_irqrestore(&fimc->slock, flags); } static const struct vb2_ops fimc_capture_qops = { .queue_setup = queue_setup, .buf_prepare = buffer_prepare, .buf_queue = buffer_queue, .wait_prepare = vb2_ops_wait_prepare, .wait_finish = vb2_ops_wait_finish, .start_streaming = start_streaming, .stop_streaming = stop_streaming, }; static int fimc_capture_set_default_format(struct fimc_dev *fimc); static int fimc_capture_open(struct file *file) { struct fimc_dev *fimc = video_drvdata(file); struct fimc_vid_cap *vc = &fimc->vid_cap; struct exynos_video_entity *ve = &vc->ve; int ret = -EBUSY; dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state); mutex_lock(&fimc->lock); if (fimc_m2m_active(fimc)) goto unlock; set_bit(ST_CAPT_BUSY, &fimc->state); ret = pm_runtime_get_sync(&fimc->pdev->dev); if (ret < 0) goto unlock; ret = v4l2_fh_open(file); if (ret) { pm_runtime_put_sync(&fimc->pdev->dev); goto unlock; } if (v4l2_fh_is_singular_file(file)) { fimc_md_graph_lock(ve); ret = fimc_pipeline_call(ve, open, &ve->vdev.entity, true); if (ret == 0 && vc->user_subdev_api && vc->inh_sensor_ctrls) { /* * Recreate controls of the the video node to drop * any controls inherited from the sensor subdev. */ fimc_ctrls_delete(vc->ctx); ret = fimc_ctrls_create(vc->ctx); if (ret == 0) vc->inh_sensor_ctrls = false; } if (ret == 0) ve->vdev.entity.use_count++; fimc_md_graph_unlock(ve); if (ret == 0) ret = fimc_capture_set_default_format(fimc); if (ret < 0) { clear_bit(ST_CAPT_BUSY, &fimc->state); pm_runtime_put_sync(&fimc->pdev->dev); v4l2_fh_release(file); } } unlock: mutex_unlock(&fimc->lock); return ret; } static int fimc_capture_release(struct file *file) { struct fimc_dev *fimc = video_drvdata(file); struct fimc_vid_cap *vc = &fimc->vid_cap; bool close = v4l2_fh_is_singular_file(file); int ret; dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state); mutex_lock(&fimc->lock); if (close && vc->streaming) { media_pipeline_stop(&vc->ve.vdev.entity); vc->streaming = false; } ret = _vb2_fop_release(file, NULL); if (close) { clear_bit(ST_CAPT_BUSY, &fimc->state); fimc_pipeline_call(&vc->ve, close); clear_bit(ST_CAPT_SUSPENDED, &fimc->state); fimc_md_graph_lock(&vc->ve); vc->ve.vdev.entity.use_count--; fimc_md_graph_unlock(&vc->ve); } pm_runtime_put_sync(&fimc->pdev->dev); mutex_unlock(&fimc->lock); return ret; } static const struct v4l2_file_operations fimc_capture_fops = { .owner = THIS_MODULE, .open = fimc_capture_open, .release = fimc_capture_release, .poll = vb2_fop_poll, .unlocked_ioctl = video_ioctl2, .mmap = vb2_fop_mmap, }; /* * Format and crop negotiation helpers */ static struct fimc_fmt *fimc_capture_try_format(struct fimc_ctx *ctx, u32 *width, u32 *height, u32 *code, u32 *fourcc, int pad) { bool rotation = ctx->rotation == 90 || ctx->rotation == 270; struct fimc_dev *fimc = ctx->fimc_dev; const struct fimc_variant *var = fimc->variant; const struct fimc_pix_limit *pl = var->pix_limit; struct fimc_frame *dst = &ctx->d_frame; u32 depth, min_w, max_w, min_h, align_h = 3; u32 mask = FMT_FLAGS_CAM; struct fimc_fmt *ffmt; /* Conversion from/to JPEG or User Defined format is not supported */ if (code && ctx->s_frame.fmt && pad == FIMC_SD_PAD_SOURCE && fimc_fmt_is_user_defined(ctx->s_frame.fmt->color)) *code = ctx->s_frame.fmt->mbus_code; if (fourcc && *fourcc != V4L2_PIX_FMT_JPEG && pad == FIMC_SD_PAD_SOURCE) mask |= FMT_FLAGS_M2M; if (pad == FIMC_SD_PAD_SINK_FIFO) mask = FMT_FLAGS_WRITEBACK; ffmt = fimc_find_format(fourcc, code, mask, 0); if (WARN_ON(!ffmt)) return NULL; if (code) *code = ffmt->mbus_code; if (fourcc) *fourcc = ffmt->fourcc; if (pad != FIMC_SD_PAD_SOURCE) { max_w = fimc_fmt_is_user_defined(ffmt->color) ? pl->scaler_dis_w : pl->scaler_en_w; /* Apply the camera input interface pixel constraints */ v4l_bound_align_image(width, max_t(u32, *width, 32), max_w, 4, height, max_t(u32, *height, 32), FIMC_CAMIF_MAX_HEIGHT, fimc_fmt_is_user_defined(ffmt->color) ? 3 : 1, 0); return ffmt; } /* Can't scale or crop in transparent (JPEG) transfer mode */ if (fimc_fmt_is_user_defined(ffmt->color)) { *width = ctx->s_frame.f_width; *height = ctx->s_frame.f_height; return ffmt; } /* Apply the scaler and the output DMA constraints */ max_w = rotation ? pl->out_rot_en_w : pl->out_rot_dis_w; if (ctx->state & FIMC_COMPOSE) { min_w = dst->offs_h + dst->width; min_h = dst->offs_v + dst->height; } else { min_w = var->min_out_pixsize; min_h = var->min_out_pixsize; } if (var->min_vsize_align == 1 && !rotation) align_h = fimc_fmt_is_rgb(ffmt->color) ? 0 : 1; depth = fimc_get_format_depth(ffmt); v4l_bound_align_image(width, min_w, max_w, ffs(var->min_out_pixsize) - 1, height, min_h, FIMC_CAMIF_MAX_HEIGHT, align_h, 64/(ALIGN(depth, 8))); dbg("pad%d: code: 0x%x, %dx%d. dst fmt: %dx%d", pad, code ? *code : 0, *width, *height, dst->f_width, dst->f_height); return ffmt; } static void fimc_capture_try_selection(struct fimc_ctx *ctx, struct v4l2_rect *r, int target) { bool rotate = ctx->rotation == 90 || ctx->rotation == 270; struct fimc_dev *fimc = ctx->fimc_dev; const struct fimc_variant *var = fimc->variant; const struct fimc_pix_limit *pl = var->pix_limit; struct fimc_frame *sink = &ctx->s_frame; u32 max_w, max_h, min_w = 0, min_h = 0, min_sz; u32 align_sz = 0, align_h = 4; u32 max_sc_h, max_sc_v; /* In JPEG transparent transfer mode cropping is not supported */ if (fimc_fmt_is_user_defined(ctx->d_frame.fmt->color)) { r->width = sink->f_width; r->height = sink->f_height; r->left = r->top = 0; return; } if (target == V4L2_SEL_TGT_COMPOSE) { u32 tmp_min_h = ffs(sink->width) - 3; u32 tmp_min_v = ffs(sink->height) - 1; if (ctx->rotation != 90 && ctx->rotation != 270) align_h = 1; max_sc_h = min(SCALER_MAX_HRATIO, 1 << tmp_min_h); max_sc_v = min(SCALER_MAX_VRATIO, 1 << tmp_min_v); min_sz = var->min_out_pixsize; } else { u32 depth = fimc_get_format_depth(sink->fmt); align_sz = 64/ALIGN(depth, 8); min_sz = var->min_inp_pixsize; min_w = min_h = min_sz; max_sc_h = max_sc_v = 1; } /* * For the compose rectangle the following constraints must be met: * - it must fit in the sink pad format rectangle (f_width/f_height); * - maximum downscaling ratio is 64; * - maximum crop size depends if the rotator is used or not; * - the sink pad format width/height must be 4 multiple of the * prescaler ratios determined by sink pad size and source pad crop, * the prescaler ratio is returned by fimc_get_scaler_factor(). */ max_w = min_t(u32, rotate ? pl->out_rot_en_w : pl->out_rot_dis_w, rotate ? sink->f_height : sink->f_width); max_h = min_t(u32, FIMC_CAMIF_MAX_HEIGHT, sink->f_height); if (target == V4L2_SEL_TGT_COMPOSE) { min_w = min_t(u32, max_w, sink->f_width / max_sc_h); min_h = min_t(u32, max_h, sink->f_height / max_sc_v); if (rotate) { swap(max_sc_h, max_sc_v); swap(min_w, min_h); } } v4l_bound_align_image(&r->width, min_w, max_w, ffs(min_sz) - 1, &r->height, min_h, max_h, align_h, align_sz); /* Adjust left/top if crop/compose rectangle is out of bounds */ r->left = clamp_t(u32, r->left, 0, sink->f_width - r->width); r->top = clamp_t(u32, r->top, 0, sink->f_height - r->height); r->left = round_down(r->left, var->hor_offs_align); dbg("target %#x: (%d,%d)/%dx%d, sink fmt: %dx%d", target, r->left, r->top, r->width, r->height, sink->f_width, sink->f_height); } /* * The video node ioctl operations */ static int fimc_cap_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { struct fimc_dev *fimc = video_drvdata(file); __fimc_vidioc_querycap(&fimc->pdev->dev, cap, 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; strscpy(f->description, fmt->name, sizeof(f->description)); f->pixelformat = fmt->fourcc; if (fmt->fourcc == MEDIA_BUS_FMT_JPEG_1X8) f->flags |= V4L2_FMT_FLAG_COMPRESSED; return 0; } static struct media_entity *fimc_pipeline_get_head(struct media_entity *me) { struct media_pad *pad = &me->pads[0]; while (!(pad->flags & MEDIA_PAD_FL_SOURCE)) { pad = media_entity_remote_pad(pad); if (!pad) break; me = pad->entity; pad = &me->pads[0]; } return me; } /** * fimc_pipeline_try_format - negotiate and/or set formats at pipeline * elements * @ctx: FIMC capture context * @tfmt: media bus format to try/set on subdevs * @fmt_id: fimc pixel format id corresponding to returned @tfmt (output) * @set: true to set format on subdevs, false to try only */ static int fimc_pipeline_try_format(struct fimc_ctx *ctx, struct v4l2_mbus_framefmt *tfmt, struct fimc_fmt **fmt_id, bool set) { struct fimc_dev *fimc = ctx->fimc_dev; struct fimc_pipeline *p = to_fimc_pipeline(fimc->vid_cap.ve.pipe); struct v4l2_subdev *sd = p->subdevs[IDX_SENSOR]; struct v4l2_subdev_format sfmt; struct v4l2_mbus_framefmt *mf = &sfmt.format; struct media_entity *me; struct fimc_fmt *ffmt; struct media_pad *pad; int ret, i = 1; u32 fcc; if (WARN_ON(!sd || !tfmt)) return -EINVAL; memset(&sfmt, 0, sizeof(sfmt)); sfmt.format = *tfmt; sfmt.which = set ? V4L2_SUBDEV_FORMAT_ACTIVE : V4L2_SUBDEV_FORMAT_TRY; me = fimc_pipeline_get_head(&sd->entity); while (1) { ffmt = fimc_find_format(NULL, mf->code != 0 ? &mf->code : NULL, FMT_FLAGS_CAM, i++); if (ffmt == NULL) { /* * Notify user-space if common pixel code for * host and sensor does not exist. */ return -EINVAL; } mf->code = tfmt->code = ffmt->mbus_code; /* set format on all pipeline subdevs */ while (me != &fimc->vid_cap.subdev.entity) { sd = media_entity_to_v4l2_subdev(me); sfmt.pad = 0; ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &sfmt); if (ret) return ret; if (me->pads[0].flags & MEDIA_PAD_FL_SINK) { sfmt.pad = me->num_pads - 1; mf->code = tfmt->code; ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &sfmt); if (ret) return ret; } pad = media_entity_remote_pad(&me->pads[sfmt.pad]); if (!pad) return -EINVAL; me = pad->entity; } if (mf->code != tfmt->code) continue; fcc = ffmt->fourcc; tfmt->width = mf->width; tfmt->height = mf->height; ffmt = fimc_capture_try_format(ctx, &tfmt->width, &tfmt->height, NULL, &fcc, FIMC_SD_PAD_SINK_CAM); ffmt = fimc_capture_try_format(ctx, &tfmt->width, &tfmt->height, NULL, &fcc, FIMC_SD_PAD_SOURCE); if (ffmt && ffmt->mbus_code) mf->code = ffmt->mbus_code; if (mf->width != tfmt->width || mf->height != tfmt->height) continue; tfmt->code = mf->code; break; } if (fmt_id && ffmt) *fmt_id = ffmt; *tfmt = *mf; return 0; } /** * fimc_get_sensor_frame_desc - query the sensor for media bus frame parameters * @sensor: pointer to the sensor subdev * @plane_fmt: provides plane sizes corresponding to the frame layout entries * @num_planes: number of planes * @try: true to set the frame parameters, false to query only * * This function is used by this driver only for compressed/blob data formats. */ static int fimc_get_sensor_frame_desc(struct v4l2_subdev *sensor, struct v4l2_plane_pix_format *plane_fmt, unsigned int num_planes, bool try) { struct v4l2_mbus_frame_desc fd; int i, ret; int pad; for (i = 0; i < num_planes; i++) fd.entry[i].length = plane_fmt[i].sizeimage; pad = sensor->entity.num_pads - 1; if (try) ret = v4l2_subdev_call(sensor, pad, set_frame_desc, pad, &fd); else ret = v4l2_subdev_call(sensor, pad, get_frame_desc, pad, &fd); if (ret < 0) return ret; if (num_planes != fd.num_entries) return -EINVAL; for (i = 0; i < num_planes; i++) plane_fmt[i].sizeimage = fd.entry[i].length; if (fd.entry[0].length > FIMC_MAX_JPEG_BUF_SIZE) { v4l2_err(sensor->v4l2_dev, "Unsupported buffer size: %u\n", fd.entry[0].length); return -EINVAL; } return 0; } static int fimc_cap_g_fmt_mplane(struct file *file, void *fh, struct v4l2_format *f) { struct fimc_dev *fimc = video_drvdata(file); __fimc_get_format(&fimc->vid_cap.ctx->d_frame, f); return 0; } /* * Try or set format on the fimc.X.capture video node and additionally * on the whole pipeline if @try is false. * Locking: the caller must _not_ hold the graph mutex. */ static int __video_try_or_set_format(struct fimc_dev *fimc, struct v4l2_format *f, bool try, struct fimc_fmt **inp_fmt, struct fimc_fmt **out_fmt) { struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; struct fimc_vid_cap *vc = &fimc->vid_cap; struct exynos_video_entity *ve = &vc->ve; struct fimc_ctx *ctx = vc->ctx; unsigned int width = 0, height = 0; int ret = 0; /* Pre-configure format at the camera input interface, for JPEG only */ if (fimc_jpeg_fourcc(pix->pixelformat)) { fimc_capture_try_format(ctx, &pix->width, &pix->height, NULL, &pix->pixelformat, FIMC_SD_PAD_SINK_CAM); if (try) { width = pix->width; height = pix->height; } else { ctx->s_frame.f_width = pix->width; ctx->s_frame.f_height = pix->height; } } /* Try the format at the scaler and the DMA output */ *out_fmt = fimc_capture_try_format(ctx, &pix->width, &pix->height, NULL, &pix->pixelformat, FIMC_SD_PAD_SOURCE); if (*out_fmt == NULL) return -EINVAL; /* Restore image width/height for JPEG (no resizing supported). */ if (try && fimc_jpeg_fourcc(pix->pixelformat)) { pix->width = width; pix->height = height; } /* Try to match format at the host and the sensor */ if (!vc->user_subdev_api) { struct v4l2_mbus_framefmt mbus_fmt; struct v4l2_mbus_framefmt *mf; mf = try ? &mbus_fmt : &fimc->vid_cap.ci_fmt; mf->code = (*out_fmt)->mbus_code; mf->width = pix->width; mf->height = pix->height; fimc_md_graph_lock(ve); ret = fimc_pipeline_try_format(ctx, mf, inp_fmt, try); fimc_md_graph_unlock(ve); if (ret < 0) return ret; pix->width = mf->width; pix->height = mf->height; } fimc_adjust_mplane_format(*out_fmt, pix->width, pix->height, pix); if ((*out_fmt)->flags & FMT_FLAGS_COMPRESSED) { struct v4l2_subdev *sensor; fimc_md_graph_lock(ve); sensor = __fimc_md_get_subdev(ve->pipe, IDX_SENSOR); if (sensor) fimc_get_sensor_frame_desc(sensor, pix->plane_fmt, (*out_fmt)->memplanes, try); else ret = -EPIPE; fimc_md_graph_unlock(ve); } return ret; } static int fimc_cap_try_fmt_mplane(struct file *file, void *fh, struct v4l2_format *f) { struct fimc_dev *fimc = video_drvdata(file); struct fimc_fmt *out_fmt = NULL, *inp_fmt = NULL; return __video_try_or_set_format(fimc, f, true, &inp_fmt, &out_fmt); } static void fimc_capture_mark_jpeg_xfer(struct fimc_ctx *ctx, enum fimc_color_fmt color) { bool jpeg = fimc_fmt_is_user_defined(color); ctx->scaler.enabled = !jpeg; fimc_ctrls_activate(ctx, !jpeg); if (jpeg) set_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state); else clear_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state); } static int __fimc_capture_set_format(struct fimc_dev *fimc, struct v4l2_format *f) { struct fimc_vid_cap *vc = &fimc->vid_cap; struct fimc_ctx *ctx = vc->ctx; struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; struct fimc_frame *ff = &ctx->d_frame; struct fimc_fmt *inp_fmt = NULL; int ret, i; if (vb2_is_busy(&fimc->vid_cap.vbq)) return -EBUSY; ret = __video_try_or_set_format(fimc, f, false, &inp_fmt, &ff->fmt); if (ret < 0) return ret; /* Update RGB Alpha control state and value range */ fimc_alpha_ctrl_update(ctx); for (i = 0; i < ff->fmt->memplanes; i++) { ff->bytesperline[i] = pix->plane_fmt[i].bytesperline; ff->payload[i] = pix->plane_fmt[i].sizeimage; } set_frame_bounds(ff, pix->width, pix->height); /* Reset the composition rectangle if not yet configured */ if (!(ctx->state & FIMC_COMPOSE)) set_frame_crop(ff, 0, 0, pix->width, pix->height); fimc_capture_mark_jpeg_xfer(ctx, ff->fmt->color); /* Reset cropping and set format at the camera interface input */ if (!vc->user_subdev_api) { ctx->s_frame.fmt = inp_fmt; set_frame_bounds(&ctx->s_frame, pix->width, pix->height); set_frame_crop(&ctx->s_frame, 0, 0, pix->width, pix->height); } return ret; } static int fimc_cap_s_fmt_mplane(struct file *file, void *priv, struct v4l2_format *f) { struct fimc_dev *fimc = video_drvdata(file); return __fimc_capture_set_format(fimc, f); } static int fimc_cap_enum_input(struct file *file, void *priv, struct v4l2_input *i) { struct fimc_dev *fimc = video_drvdata(file); struct exynos_video_entity *ve = &fimc->vid_cap.ve; struct v4l2_subdev *sd; if (i->index != 0) return -EINVAL; i->type = V4L2_INPUT_TYPE_CAMERA; fimc_md_graph_lock(ve); sd = __fimc_md_get_subdev(ve->pipe, IDX_SENSOR); fimc_md_graph_unlock(ve); if (sd) strscpy(i->name, sd->name, sizeof(i->name)); return 0; } static int fimc_cap_s_input(struct file *file, void *priv, unsigned int i) { return i == 0 ? i : -EINVAL; } static int fimc_cap_g_input(struct file *file, void *priv, unsigned int *i) { *i = 0; return 0; } /** * fimc_pipeline_validate - check for formats inconsistencies * between source and sink pad of each link * @fimc: the FIMC device this context applies to * * Return 0 if all formats match or -EPIPE otherwise. */ static int fimc_pipeline_validate(struct fimc_dev *fimc) { struct v4l2_subdev_format sink_fmt, src_fmt; struct fimc_vid_cap *vc = &fimc->vid_cap; struct v4l2_subdev *sd = &vc->subdev; struct fimc_pipeline *p = to_fimc_pipeline(vc->ve.pipe); struct media_pad *sink_pad, *src_pad; int i, ret; while (1) { /* * Find current entity sink pad and any remote sink pad linked * to it. We stop if there is no sink pad in current entity or * it is not linked to any other remote entity. */ src_pad = NULL; for (i = 0; i < sd->entity.num_pads; i++) { struct media_pad *p = &sd->entity.pads[i]; if (p->flags & MEDIA_PAD_FL_SINK) { sink_pad = p; src_pad = media_entity_remote_pad(sink_pad); if (src_pad) break; } } if (!src_pad || !is_media_entity_v4l2_subdev(src_pad->entity)) break; /* Don't call FIMC subdev operation to avoid nested locking */ if (sd == &vc->subdev) { struct fimc_frame *ff = &vc->ctx->s_frame; sink_fmt.format.width = ff->f_width; sink_fmt.format.height = ff->f_height; sink_fmt.format.code = ff->fmt ? ff->fmt->mbus_code : 0; } else { sink_fmt.pad = sink_pad->index; sink_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sink_fmt); if (ret < 0 && ret != -ENOIOCTLCMD) return -EPIPE; } /* Retrieve format at the source pad */ sd = media_entity_to_v4l2_subdev(src_pad->entity); src_fmt.pad = src_pad->index; src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt); if (ret < 0 && ret != -ENOIOCTLCMD) return -EPIPE; if (src_fmt.format.width != sink_fmt.format.width || src_fmt.format.height != sink_fmt.format.height || src_fmt.format.code != sink_fmt.format.code) return -EPIPE; if (sd == p->subdevs[IDX_SENSOR] && fimc_user_defined_mbus_fmt(src_fmt.format.code)) { struct v4l2_plane_pix_format plane_fmt[FIMC_MAX_PLANES]; struct fimc_frame *frame = &vc->ctx->d_frame; unsigned int i; ret = fimc_get_sensor_frame_desc(sd, plane_fmt, frame->fmt->memplanes, false); if (ret < 0) return -EPIPE; for (i = 0; i < frame->fmt->memplanes; i++) if (frame->payload[i] < plane_fmt[i].sizeimage) return -EPIPE; } } return 0; } static int fimc_cap_streamon(struct file *file, void *priv, enum v4l2_buf_type type) { struct fimc_dev *fimc = video_drvdata(file); struct fimc_vid_cap *vc = &fimc->vid_cap; struct media_entity *entity = &vc->ve.vdev.entity; struct fimc_source_info *si = NULL; struct v4l2_subdev *sd; int ret; if (fimc_capture_active(fimc)) return -EBUSY; ret = media_pipeline_start(entity, &vc->ve.pipe->mp); if (ret < 0) return ret; sd = __fimc_md_get_subdev(vc->ve.pipe, IDX_SENSOR); if (sd) si = v4l2_get_subdev_hostdata(sd); if (si == NULL) { ret = -EPIPE; goto err_p_stop; } /* * Save configuration data related to currently attached image * sensor or other data source, e.g. FIMC-IS. */ vc->source_config = *si; if (vc->input == GRP_ID_FIMC_IS) vc->source_config.fimc_bus_type = FIMC_BUS_TYPE_ISP_WRITEBACK; if (vc->user_subdev_api) { ret = fimc_pipeline_validate(fimc); if (ret < 0) goto err_p_stop; } ret = vb2_ioctl_streamon(file, priv, type); if (!ret) { vc->streaming = true; return ret; } err_p_stop: media_pipeline_stop(entity); return ret; } static int fimc_cap_streamoff(struct file *file, void *priv, enum v4l2_buf_type type) { struct fimc_dev *fimc = video_drvdata(file); struct fimc_vid_cap *vc = &fimc->vid_cap; int ret; ret = vb2_ioctl_streamoff(file, priv, type); if (ret < 0) return ret; media_pipeline_stop(&vc->ve.vdev.entity); vc->streaming = false; return 0; } static int fimc_cap_reqbufs(struct file *file, void *priv, struct v4l2_requestbuffers *reqbufs) { struct fimc_dev *fimc = video_drvdata(file); int ret; ret = vb2_ioctl_reqbufs(file, priv, reqbufs); if (!ret) fimc->vid_cap.reqbufs_count = reqbufs->count; return ret; } static int fimc_cap_g_selection(struct file *file, void *fh, struct v4l2_selection *s) { struct fimc_dev *fimc = video_drvdata(file); struct fimc_ctx *ctx = fimc->vid_cap.ctx; struct fimc_frame *f = &ctx->s_frame; if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; switch (s->target) { case V4L2_SEL_TGT_COMPOSE_DEFAULT: case V4L2_SEL_TGT_COMPOSE_BOUNDS: f = &ctx->d_frame; /* fall through */ 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; /* fall through */ 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) 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_cap_querycap, .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 = vb2_ioctl_querybuf, .vidioc_qbuf = vb2_ioctl_qbuf, .vidioc_dqbuf = vb2_ioctl_dqbuf, .vidioc_expbuf = vb2_ioctl_expbuf, .vidioc_prepare_buf = vb2_ioctl_prepare_buf, .vidioc_create_bufs = vb2_ioctl_create_bufs, .vidioc_streamon = fimc_cap_streamon, .vidioc_streamoff = fimc_cap_streamoff, .vidioc_g_selection = fimc_cap_g_selection, .vidioc_s_selection = fimc_cap_s_selection, .vidioc_enum_input = fimc_cap_enum_input, .vidioc_s_input = fimc_cap_s_input, .vidioc_g_input = fimc_cap_g_input, }; /* Capture subdev media entity operations */ static int fimc_link_setup(struct media_entity *entity, const struct media_pad *local, const struct media_pad *remote, u32 flags) { struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity); struct fimc_dev *fimc = v4l2_get_subdevdata(sd); struct fimc_vid_cap *vc = &fimc->vid_cap; struct v4l2_subdev *sensor; if (!is_media_entity_v4l2_subdev(remote->entity)) return -EINVAL; if (WARN_ON(fimc == NULL)) return 0; dbg("%s --> %s, flags: 0x%x. input: 0x%x", local->entity->name, remote->entity->name, flags, fimc->vid_cap.input); if (!(flags & MEDIA_LNK_FL_ENABLED)) { fimc->vid_cap.input = 0; return 0; } if (vc->input != 0) return -EBUSY; vc->input = sd->grp_id; if (vc->user_subdev_api || vc->inh_sensor_ctrls) return 0; /* Inherit V4L2 controls from the image sensor subdev. */ sensor = fimc_find_remote_sensor(&vc->subdev.entity); if (sensor == NULL) return 0; return v4l2_ctrl_add_handler(&vc->ctx->ctrls.handler, sensor->ctrl_handler, NULL, true); } static const struct media_entity_operations fimc_sd_media_ops = { .link_setup = fimc_link_setup, }; /** * fimc_sensor_notify - v4l2_device notification from a sensor subdev * @sd: pointer to a subdev generating the notification * @notification: the notification type, must be S5P_FIMC_TX_END_NOTIFY * @arg: pointer to an u32 type integer that stores the frame payload value * * The End Of Frame notification sent by sensor subdev in its still capture * mode. If there is only a single VSYNC generated by the sensor at the * beginning of a frame transmission, FIMC does not issue the LastIrq * (end of frame) interrupt. And this notification is used to complete the * frame capture and returning a buffer to user-space. Subdev drivers should * call this notification from their last 'End of frame capture' interrupt. */ void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification, void *arg) { struct fimc_source_info *si; struct fimc_vid_buffer *buf; struct fimc_md *fmd; struct fimc_dev *fimc; unsigned long flags; if (sd == NULL) return; si = v4l2_get_subdev_hostdata(sd); fmd = entity_to_fimc_mdev(&sd->entity); spin_lock_irqsave(&fmd->slock, flags); fimc = si ? source_to_sensor_info(si)->host : NULL; if (fimc && arg && notification == S5P_FIMC_TX_END_NOTIFY && test_bit(ST_CAPT_PEND, &fimc->state)) { unsigned long irq_flags; spin_lock_irqsave(&fimc->slock, irq_flags); if (!list_empty(&fimc->vid_cap.active_buf_q)) { buf = list_entry(fimc->vid_cap.active_buf_q.next, struct fimc_vid_buffer, list); vb2_set_plane_payload(&buf->vb.vb2_buf, 0, *((u32 *)arg)); } fimc_capture_irq_handler(fimc, 1); fimc_deactivate_capture(fimc); spin_unlock_irqrestore(&fimc->slock, irq_flags); } spin_unlock_irqrestore(&fmd->slock, flags); } static int fimc_subdev_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_mbus_code_enum *code) { struct fimc_fmt *fmt; fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, code->index); if (!fmt) return -EINVAL; code->code = fmt->mbus_code; return 0; } static int fimc_subdev_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *fmt) { struct fimc_dev *fimc = v4l2_get_subdevdata(sd); struct fimc_ctx *ctx = fimc->vid_cap.ctx; struct fimc_frame *ff = &ctx->s_frame; struct v4l2_mbus_framefmt *mf; if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); fmt->format = *mf; return 0; } mf = &fmt->format; mutex_lock(&fimc->lock); switch (fmt->pad) { case FIMC_SD_PAD_SOURCE: if (!WARN_ON(ff->fmt == NULL)) mf->code = ff->fmt->mbus_code; /* Sink pads crop rectangle size */ mf->width = ff->width; mf->height = ff->height; break; case FIMC_SD_PAD_SINK_FIFO: *mf = fimc->vid_cap.wb_fmt; break; case FIMC_SD_PAD_SINK_CAM: default: *mf = fimc->vid_cap.ci_fmt; break; } mutex_unlock(&fimc->lock); mf->colorspace = V4L2_COLORSPACE_JPEG; return 0; } static int fimc_subdev_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *fmt) { struct fimc_dev *fimc = v4l2_get_subdevdata(sd); struct v4l2_mbus_framefmt *mf = &fmt->format; struct fimc_vid_cap *vc = &fimc->vid_cap; struct fimc_ctx *ctx = vc->ctx; struct fimc_frame *ff; struct fimc_fmt *ffmt; dbg("pad%d: code: 0x%x, %dx%d", fmt->pad, mf->code, mf->width, mf->height); if (fmt->pad == FIMC_SD_PAD_SOURCE && vb2_is_busy(&vc->vbq)) return -EBUSY; mutex_lock(&fimc->lock); ffmt = fimc_capture_try_format(ctx, &mf->width, &mf->height, &mf->code, NULL, fmt->pad); mutex_unlock(&fimc->lock); mf->colorspace = V4L2_COLORSPACE_JPEG; if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); *mf = fmt->format; return 0; } /* There must be a bug in the driver if this happens */ if (WARN_ON(ffmt == NULL)) return -EINVAL; /* Update RGB Alpha control state and value range */ fimc_alpha_ctrl_update(ctx); fimc_capture_mark_jpeg_xfer(ctx, ffmt->color); if (fmt->pad == FIMC_SD_PAD_SOURCE) { ff = &ctx->d_frame; /* Sink pads crop rectangle size */ mf->width = ctx->s_frame.width; mf->height = ctx->s_frame.height; } else { ff = &ctx->s_frame; } mutex_lock(&fimc->lock); set_frame_bounds(ff, mf->width, mf->height); if (fmt->pad == FIMC_SD_PAD_SINK_FIFO) vc->wb_fmt = *mf; else if (fmt->pad == FIMC_SD_PAD_SINK_CAM) vc->ci_fmt = *mf; ff->fmt = ffmt; /* Reset the crop rectangle if required. */ if (!(fmt->pad == FIMC_SD_PAD_SOURCE && (ctx->state & FIMC_COMPOSE))) set_frame_crop(ff, 0, 0, mf->width, mf->height); if (fmt->pad != FIMC_SD_PAD_SOURCE) ctx->state &= ~FIMC_COMPOSE; mutex_unlock(&fimc->lock); return 0; } static int fimc_subdev_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_selection *sel) { struct fimc_dev *fimc = v4l2_get_subdevdata(sd); struct fimc_ctx *ctx = fimc->vid_cap.ctx; struct fimc_frame *f = &ctx->s_frame; struct v4l2_rect *r = &sel->r; struct v4l2_rect *try_sel; if (sel->pad == FIMC_SD_PAD_SOURCE) return -EINVAL; mutex_lock(&fimc->lock); switch (sel->target) { case V4L2_SEL_TGT_COMPOSE_BOUNDS: f = &ctx->d_frame; /* fall through */ case V4L2_SEL_TGT_CROP_BOUNDS: r->width = f->o_width; r->height = f->o_height; r->left = 0; r->top = 0; mutex_unlock(&fimc->lock); return 0; case V4L2_SEL_TGT_CROP: try_sel = v4l2_subdev_get_try_crop(sd, cfg, sel->pad); break; case V4L2_SEL_TGT_COMPOSE: try_sel = v4l2_subdev_get_try_compose(sd, cfg, sel->pad); f = &ctx->d_frame; break; default: mutex_unlock(&fimc->lock); return -EINVAL; } if (sel->which == V4L2_SUBDEV_FORMAT_TRY) { sel->r = *try_sel; } else { r->left = f->offs_h; r->top = f->offs_v; r->width = f->width; r->height = f->height; } dbg("target %#x: l:%d, t:%d, %dx%d, f_w: %d, f_h: %d", sel->pad, r->left, r->top, r->width, r->height, f->f_width, f->f_height); mutex_unlock(&fimc->lock); return 0; } static int fimc_subdev_set_selection(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_selection *sel) { struct fimc_dev *fimc = v4l2_get_subdevdata(sd); struct fimc_ctx *ctx = fimc->vid_cap.ctx; struct fimc_frame *f = &ctx->s_frame; struct v4l2_rect *r = &sel->r; struct v4l2_rect *try_sel; unsigned long flags; if (sel->pad == FIMC_SD_PAD_SOURCE) return -EINVAL; mutex_lock(&fimc->lock); fimc_capture_try_selection(ctx, r, V4L2_SEL_TGT_CROP); switch (sel->target) { case V4L2_SEL_TGT_CROP: try_sel = v4l2_subdev_get_try_crop(sd, cfg, sel->pad); break; case V4L2_SEL_TGT_COMPOSE: try_sel = v4l2_subdev_get_try_compose(sd, cfg, sel->pad); f = &ctx->d_frame; break; default: mutex_unlock(&fimc->lock); return -EINVAL; } if (sel->which == V4L2_SUBDEV_FORMAT_TRY) { *try_sel = sel->r; } else { spin_lock_irqsave(&fimc->slock, flags); set_frame_crop(f, r->left, r->top, r->width, r->height); set_bit(ST_CAPT_APPLY_CFG, &fimc->state); if (sel->target == V4L2_SEL_TGT_COMPOSE) ctx->state |= FIMC_COMPOSE; spin_unlock_irqrestore(&fimc->slock, flags); } dbg("target %#x: (%d,%d)/%dx%d", sel->target, r->left, r->top, r->width, r->height); mutex_unlock(&fimc->lock); return 0; } static const struct v4l2_subdev_pad_ops fimc_subdev_pad_ops = { .enum_mbus_code = fimc_subdev_enum_mbus_code, .get_selection = fimc_subdev_get_selection, .set_selection = fimc_subdev_set_selection, .get_fmt = fimc_subdev_get_fmt, .set_fmt = fimc_subdev_set_fmt, }; static const struct v4l2_subdev_ops fimc_subdev_ops = { .pad = &fimc_subdev_pad_ops, }; /* Set default format at the sensor and host interface */ static int fimc_capture_set_default_format(struct fimc_dev *fimc) { struct v4l2_format fmt = { .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE, .fmt.pix_mp = { .width = FIMC_DEFAULT_WIDTH, .height = FIMC_DEFAULT_HEIGHT, .pixelformat = V4L2_PIX_FMT_YUYV, .field = V4L2_FIELD_NONE, .colorspace = V4L2_COLORSPACE_JPEG, }, }; return __fimc_capture_set_format(fimc, &fmt); } /* fimc->lock must be already initialized */ static int fimc_register_capture_device(struct fimc_dev *fimc, struct v4l2_device *v4l2_dev) { struct video_device *vfd = &fimc->vid_cap.ve.vdev; struct vb2_queue *q = &fimc->vid_cap.vbq; struct fimc_ctx *ctx; struct fimc_vid_cap *vid_cap; struct fimc_fmt *fmt; int ret = -ENOMEM; ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; ctx->fimc_dev = fimc; ctx->in_path = FIMC_IO_CAMERA; ctx->out_path = FIMC_IO_DMA; ctx->state = FIMC_CTX_CAP; ctx->s_frame.fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0); ctx->d_frame.fmt = ctx->s_frame.fmt; memset(vfd, 0, sizeof(*vfd)); snprintf(vfd->name, sizeof(vfd->name), "fimc.%d.capture", fimc->id); vfd->fops = &fimc_capture_fops; vfd->ioctl_ops = &fimc_capture_ioctl_ops; vfd->v4l2_dev = v4l2_dev; vfd->minor = -1; vfd->release = video_device_release_empty; vfd->queue = q; vfd->lock = &fimc->lock; video_set_drvdata(vfd, fimc); vid_cap = &fimc->vid_cap; vid_cap->active_buf_cnt = 0; vid_cap->reqbufs_count = 0; vid_cap->ctx = ctx; INIT_LIST_HEAD(&vid_cap->pending_buf_q); INIT_LIST_HEAD(&vid_cap->active_buf_q); memset(q, 0, sizeof(*q)); q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; q->drv_priv = ctx; q->ops = &fimc_capture_qops; q->mem_ops = &vb2_dma_contig_memops; q->buf_struct_size = sizeof(struct fimc_vid_buffer); q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; q->lock = &fimc->lock; q->dev = &fimc->pdev->dev; ret = vb2_queue_init(q); if (ret) goto err_free_ctx; /* Default format configuration */ fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0); vid_cap->ci_fmt.width = FIMC_DEFAULT_WIDTH; vid_cap->ci_fmt.height = FIMC_DEFAULT_HEIGHT; vid_cap->ci_fmt.code = fmt->mbus_code; ctx->s_frame.width = FIMC_DEFAULT_WIDTH; ctx->s_frame.height = FIMC_DEFAULT_HEIGHT; ctx->s_frame.fmt = fmt; fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_WRITEBACK, 0); vid_cap->wb_fmt = vid_cap->ci_fmt; vid_cap->wb_fmt.code = fmt->mbus_code; vid_cap->vd_pad.flags = MEDIA_PAD_FL_SINK; vfd->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER; ret = media_entity_pads_init(&vfd->entity, 1, &vid_cap->vd_pad); if (ret) goto err_free_ctx; ret = fimc_ctrls_create(ctx); if (ret) goto err_me_cleanup; ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1); if (ret) goto err_ctrl_free; v4l2_info(v4l2_dev, "Registered %s as /dev/%s\n", vfd->name, video_device_node_name(vfd)); vfd->ctrl_handler = &ctx->ctrls.handler; return 0; err_ctrl_free: fimc_ctrls_delete(ctx); err_me_cleanup: media_entity_cleanup(&vfd->entity); err_free_ctx: kfree(ctx); return ret; } static int fimc_capture_subdev_registered(struct v4l2_subdev *sd) { struct fimc_dev *fimc = v4l2_get_subdevdata(sd); int ret; if (fimc == NULL) return -ENXIO; ret = fimc_register_m2m_device(fimc, sd->v4l2_dev); if (ret) return ret; fimc->vid_cap.ve.pipe = v4l2_get_subdev_hostdata(sd); ret = fimc_register_capture_device(fimc, sd->v4l2_dev); if (ret) { fimc_unregister_m2m_device(fimc); fimc->vid_cap.ve.pipe = NULL; } return ret; } static void fimc_capture_subdev_unregistered(struct v4l2_subdev *sd) { struct fimc_dev *fimc = v4l2_get_subdevdata(sd); struct video_device *vdev; if (fimc == NULL) return; mutex_lock(&fimc->lock); fimc_unregister_m2m_device(fimc); vdev = &fimc->vid_cap.ve.vdev; if (video_is_registered(vdev)) { video_unregister_device(vdev); media_entity_cleanup(&vdev->entity); fimc_ctrls_delete(fimc->vid_cap.ctx); fimc->vid_cap.ve.pipe = NULL; } kfree(fimc->vid_cap.ctx); fimc->vid_cap.ctx = NULL; mutex_unlock(&fimc->lock); } static const struct v4l2_subdev_internal_ops fimc_capture_sd_internal_ops = { .registered = fimc_capture_subdev_registered, .unregistered = fimc_capture_subdev_unregistered, }; int fimc_initialize_capture_subdev(struct fimc_dev *fimc) { struct v4l2_subdev *sd = &fimc->vid_cap.subdev; int ret; v4l2_subdev_init(sd, &fimc_subdev_ops); sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; snprintf(sd->name, sizeof(sd->name), "FIMC.%d", fimc->id); fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_CAM].flags = MEDIA_PAD_FL_SINK; fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_FIFO].flags = MEDIA_PAD_FL_SINK; fimc->vid_cap.sd_pads[FIMC_SD_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; ret = media_entity_pads_init(&sd->entity, FIMC_SD_PADS_NUM, fimc->vid_cap.sd_pads); if (ret) return ret; sd->entity.ops = &fimc_sd_media_ops; sd->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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