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1896 lines
49 KiB
1896 lines
49 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Samsung S5P/EXYNOS4 SoC series camera interface (camera capture) driver |
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* |
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* Copyright (C) 2010 - 2012 Samsung Electronics Co., Ltd. |
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* Sylwester Nawrocki <[email protected]> |
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*/ |
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|
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/types.h> |
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#include <linux/errno.h> |
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#include <linux/bug.h> |
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#include <linux/interrupt.h> |
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#include <linux/device.h> |
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#include <linux/pm_runtime.h> |
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#include <linux/list.h> |
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#include <linux/slab.h> |
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|
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#include <linux/videodev2.h> |
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#include <media/v4l2-device.h> |
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#include <media/v4l2-ioctl.h> |
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#include <media/v4l2-mem2mem.h> |
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#include <media/v4l2-rect.h> |
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#include <media/videobuf2-v4l2.h> |
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#include <media/videobuf2-dma-contig.h> |
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|
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#include "common.h" |
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#include "fimc-core.h" |
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#include "fimc-reg.h" |
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#include "media-dev.h" |
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|
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static int fimc_capture_hw_init(struct fimc_dev *fimc) |
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{ |
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struct fimc_source_info *si = &fimc->vid_cap.source_config; |
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struct fimc_ctx *ctx = fimc->vid_cap.ctx; |
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int ret; |
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unsigned long flags; |
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|
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if (ctx == NULL || ctx->s_frame.fmt == NULL) |
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return -EINVAL; |
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|
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if (si->fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK) { |
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ret = fimc_hw_camblk_cfg_writeback(fimc); |
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if (ret < 0) |
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return ret; |
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} |
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|
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spin_lock_irqsave(&fimc->slock, flags); |
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fimc_prepare_dma_offset(ctx, &ctx->d_frame); |
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fimc_set_yuv_order(ctx); |
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|
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fimc_hw_set_camera_polarity(fimc, si); |
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fimc_hw_set_camera_type(fimc, si); |
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fimc_hw_set_camera_source(fimc, si); |
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fimc_hw_set_camera_offset(fimc, &ctx->s_frame); |
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|
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ret = fimc_set_scaler_info(ctx); |
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if (!ret) { |
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fimc_hw_set_input_path(ctx); |
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fimc_hw_set_prescaler(ctx); |
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fimc_hw_set_mainscaler(ctx); |
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fimc_hw_set_target_format(ctx); |
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fimc_hw_set_rotation(ctx); |
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fimc_hw_set_effect(ctx); |
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fimc_hw_set_output_path(ctx); |
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fimc_hw_set_out_dma(ctx); |
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if (fimc->drv_data->alpha_color) |
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fimc_hw_set_rgb_alpha(ctx); |
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clear_bit(ST_CAPT_APPLY_CFG, &fimc->state); |
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} |
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spin_unlock_irqrestore(&fimc->slock, flags); |
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return ret; |
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} |
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|
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/* |
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* Reinitialize the driver so it is ready to start the streaming again. |
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* Set fimc->state to indicate stream off and the hardware shut down state. |
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* If not suspending (@suspend is false), return any buffers to videobuf2. |
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* Otherwise put any owned buffers onto the pending buffers queue, so they |
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* can be re-spun when the device is being resumed. Also perform FIMC |
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* software reset and disable streaming on the whole pipeline if required. |
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*/ |
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static int fimc_capture_state_cleanup(struct fimc_dev *fimc, bool suspend) |
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{ |
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struct fimc_vid_cap *cap = &fimc->vid_cap; |
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struct fimc_vid_buffer *buf; |
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unsigned long flags; |
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bool streaming; |
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|
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spin_lock_irqsave(&fimc->slock, flags); |
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streaming = fimc->state & (1 << ST_CAPT_ISP_STREAM); |
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|
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fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_SHUT | |
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1 << ST_CAPT_STREAM | 1 << ST_CAPT_ISP_STREAM); |
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if (suspend) |
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fimc->state |= (1 << ST_CAPT_SUSPENDED); |
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else |
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fimc->state &= ~(1 << ST_CAPT_PEND | 1 << ST_CAPT_SUSPENDED); |
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|
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/* Release unused buffers */ |
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while (!suspend && !list_empty(&cap->pending_buf_q)) { |
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buf = fimc_pending_queue_pop(cap); |
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vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); |
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} |
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/* If suspending put unused buffers onto pending queue */ |
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while (!list_empty(&cap->active_buf_q)) { |
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buf = fimc_active_queue_pop(cap); |
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if (suspend) |
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fimc_pending_queue_add(cap, buf); |
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else |
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vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); |
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} |
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fimc_hw_reset(fimc); |
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cap->buf_index = 0; |
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|
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spin_unlock_irqrestore(&fimc->slock, flags); |
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|
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if (streaming) |
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return fimc_pipeline_call(&cap->ve, set_stream, 0); |
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else |
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return 0; |
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} |
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|
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static int fimc_stop_capture(struct fimc_dev *fimc, bool suspend) |
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{ |
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unsigned long flags; |
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|
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if (!fimc_capture_active(fimc)) |
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return 0; |
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|
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spin_lock_irqsave(&fimc->slock, flags); |
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set_bit(ST_CAPT_SHUT, &fimc->state); |
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fimc_deactivate_capture(fimc); |
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spin_unlock_irqrestore(&fimc->slock, flags); |
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|
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wait_event_timeout(fimc->irq_queue, |
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!test_bit(ST_CAPT_SHUT, &fimc->state), |
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(2*HZ/10)); /* 200 ms */ |
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|
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return fimc_capture_state_cleanup(fimc, suspend); |
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} |
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|
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/** |
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* fimc_capture_config_update - apply the camera interface configuration |
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* @ctx: FIMC capture context |
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* |
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* To be called from within the interrupt handler with fimc.slock |
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* spinlock held. It updates the camera pixel crop, rotation and |
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* image flip in H/W. |
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*/ |
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static int fimc_capture_config_update(struct fimc_ctx *ctx) |
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{ |
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struct fimc_dev *fimc = ctx->fimc_dev; |
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int ret; |
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|
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fimc_hw_set_camera_offset(fimc, &ctx->s_frame); |
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|
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ret = fimc_set_scaler_info(ctx); |
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if (ret) |
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return ret; |
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|
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fimc_hw_set_prescaler(ctx); |
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fimc_hw_set_mainscaler(ctx); |
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fimc_hw_set_target_format(ctx); |
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fimc_hw_set_rotation(ctx); |
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fimc_hw_set_effect(ctx); |
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fimc_prepare_dma_offset(ctx, &ctx->d_frame); |
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fimc_hw_set_out_dma(ctx); |
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if (fimc->drv_data->alpha_color) |
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fimc_hw_set_rgb_alpha(ctx); |
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|
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clear_bit(ST_CAPT_APPLY_CFG, &fimc->state); |
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return ret; |
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} |
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|
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void fimc_capture_irq_handler(struct fimc_dev *fimc, int deq_buf) |
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{ |
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struct fimc_vid_cap *cap = &fimc->vid_cap; |
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struct fimc_pipeline *p = to_fimc_pipeline(cap->ve.pipe); |
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struct v4l2_subdev *csis = p->subdevs[IDX_CSIS]; |
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struct fimc_frame *f = &cap->ctx->d_frame; |
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struct fimc_vid_buffer *v_buf; |
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|
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if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) { |
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wake_up(&fimc->irq_queue); |
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goto done; |
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} |
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|
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if (!list_empty(&cap->active_buf_q) && |
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test_bit(ST_CAPT_RUN, &fimc->state) && deq_buf) { |
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v_buf = fimc_active_queue_pop(cap); |
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|
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v_buf->vb.vb2_buf.timestamp = ktime_get_ns(); |
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v_buf->vb.sequence = cap->frame_count++; |
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|
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vb2_buffer_done(&v_buf->vb.vb2_buf, VB2_BUF_STATE_DONE); |
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} |
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|
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if (!list_empty(&cap->pending_buf_q)) { |
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|
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v_buf = fimc_pending_queue_pop(cap); |
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fimc_hw_set_output_addr(fimc, &v_buf->addr, cap->buf_index); |
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v_buf->index = cap->buf_index; |
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|
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/* Move the buffer to the capture active queue */ |
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fimc_active_queue_add(cap, v_buf); |
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|
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dbg("next frame: %d, done frame: %d", |
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fimc_hw_get_frame_index(fimc), v_buf->index); |
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|
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if (++cap->buf_index >= FIMC_MAX_OUT_BUFS) |
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cap->buf_index = 0; |
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} |
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/* |
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* Set up a buffer at MIPI-CSIS if current image format |
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* requires the frame embedded data capture. |
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*/ |
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if (f->fmt->mdataplanes && !list_empty(&cap->active_buf_q)) { |
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unsigned int plane = ffs(f->fmt->mdataplanes) - 1; |
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unsigned int size = f->payload[plane]; |
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s32 index = fimc_hw_get_frame_index(fimc); |
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void *vaddr; |
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|
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list_for_each_entry(v_buf, &cap->active_buf_q, list) { |
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if (v_buf->index != index) |
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continue; |
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vaddr = vb2_plane_vaddr(&v_buf->vb.vb2_buf, plane); |
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v4l2_subdev_call(csis, video, s_rx_buffer, |
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vaddr, &size); |
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break; |
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} |
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} |
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|
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if (cap->active_buf_cnt == 0) { |
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if (deq_buf) |
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clear_bit(ST_CAPT_RUN, &fimc->state); |
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|
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if (++cap->buf_index >= FIMC_MAX_OUT_BUFS) |
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cap->buf_index = 0; |
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} else { |
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set_bit(ST_CAPT_RUN, &fimc->state); |
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} |
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|
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if (test_bit(ST_CAPT_APPLY_CFG, &fimc->state)) |
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fimc_capture_config_update(cap->ctx); |
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done: |
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if (cap->active_buf_cnt == 1) { |
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fimc_deactivate_capture(fimc); |
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clear_bit(ST_CAPT_STREAM, &fimc->state); |
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} |
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|
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dbg("frame: %d, active_buf_cnt: %d", |
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fimc_hw_get_frame_index(fimc), cap->active_buf_cnt); |
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} |
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static int start_streaming(struct vb2_queue *q, unsigned int count) |
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{ |
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struct fimc_ctx *ctx = q->drv_priv; |
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struct fimc_dev *fimc = ctx->fimc_dev; |
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struct fimc_vid_cap *vid_cap = &fimc->vid_cap; |
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int min_bufs; |
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int ret; |
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vid_cap->frame_count = 0; |
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|
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ret = fimc_capture_hw_init(fimc); |
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if (ret) { |
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fimc_capture_state_cleanup(fimc, false); |
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return ret; |
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} |
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|
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set_bit(ST_CAPT_PEND, &fimc->state); |
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|
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min_bufs = fimc->vid_cap.reqbufs_count > 1 ? 2 : 1; |
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|
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if (vid_cap->active_buf_cnt >= min_bufs && |
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!test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) { |
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fimc_activate_capture(ctx); |
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|
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if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state)) |
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return fimc_pipeline_call(&vid_cap->ve, set_stream, 1); |
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} |
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|
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return 0; |
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} |
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|
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static void stop_streaming(struct vb2_queue *q) |
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{ |
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struct fimc_ctx *ctx = q->drv_priv; |
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struct fimc_dev *fimc = ctx->fimc_dev; |
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|
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if (!fimc_capture_active(fimc)) |
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return; |
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|
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fimc_stop_capture(fimc, false); |
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} |
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|
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int fimc_capture_suspend(struct fimc_dev *fimc) |
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{ |
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bool suspend = fimc_capture_busy(fimc); |
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|
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int ret = fimc_stop_capture(fimc, suspend); |
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if (ret) |
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return ret; |
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return fimc_pipeline_call(&fimc->vid_cap.ve, close); |
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} |
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|
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static void buffer_queue(struct vb2_buffer *vb); |
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|
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int fimc_capture_resume(struct fimc_dev *fimc) |
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{ |
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struct fimc_vid_cap *vid_cap = &fimc->vid_cap; |
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struct exynos_video_entity *ve = &vid_cap->ve; |
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struct fimc_vid_buffer *buf; |
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int i; |
|
|
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if (!test_and_clear_bit(ST_CAPT_SUSPENDED, &fimc->state)) |
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return 0; |
|
|
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INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q); |
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vid_cap->buf_index = 0; |
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fimc_pipeline_call(ve, open, &ve->vdev.entity, false); |
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fimc_capture_hw_init(fimc); |
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|
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clear_bit(ST_CAPT_SUSPENDED, &fimc->state); |
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|
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for (i = 0; i < vid_cap->reqbufs_count; i++) { |
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if (list_empty(&vid_cap->pending_buf_q)) |
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break; |
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buf = fimc_pending_queue_pop(vid_cap); |
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buffer_queue(&buf->vb.vb2_buf); |
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} |
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return 0; |
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|
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} |
|
|
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static int queue_setup(struct vb2_queue *vq, |
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unsigned int *num_buffers, unsigned int *num_planes, |
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unsigned int sizes[], struct device *alloc_devs[]) |
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{ |
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struct fimc_ctx *ctx = vq->drv_priv; |
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struct fimc_frame *frame = &ctx->d_frame; |
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struct fimc_fmt *fmt = frame->fmt; |
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unsigned long wh = frame->f_width * frame->f_height; |
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int i; |
|
|
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if (fmt == NULL) |
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return -EINVAL; |
|
|
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if (*num_planes) { |
|
if (*num_planes != fmt->memplanes) |
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return -EINVAL; |
|
for (i = 0; i < *num_planes; i++) |
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if (sizes[i] < (wh * fmt->depth[i]) / 8) |
|
return -EINVAL; |
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return 0; |
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} |
|
|
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*num_planes = fmt->memplanes; |
|
|
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for (i = 0; i < fmt->memplanes; i++) { |
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unsigned int size = (wh * fmt->depth[i]) / 8; |
|
|
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if (fimc_fmt_is_user_defined(fmt->color)) |
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sizes[i] = frame->payload[i]; |
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else |
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sizes[i] = max_t(u32, size, frame->payload[i]); |
|
} |
|
|
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return 0; |
|
} |
|
|
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static int buffer_prepare(struct vb2_buffer *vb) |
|
{ |
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struct vb2_queue *vq = vb->vb2_queue; |
|
struct fimc_ctx *ctx = vq->drv_priv; |
|
int i; |
|
|
|
if (ctx->d_frame.fmt == NULL) |
|
return -EINVAL; |
|
|
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for (i = 0; i < ctx->d_frame.fmt->memplanes; i++) { |
|
unsigned long size = ctx->d_frame.payload[i]; |
|
|
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if (vb2_plane_size(vb, i) < size) { |
|
v4l2_err(&ctx->fimc_dev->vid_cap.ve.vdev, |
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"User buffer too small (%ld < %ld)\n", |
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vb2_plane_size(vb, i), size); |
|
return -EINVAL; |
|
} |
|
vb2_set_plane_payload(vb, i, size); |
|
} |
|
|
|
return 0; |
|
} |
|
|
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static void buffer_queue(struct vb2_buffer *vb) |
|
{ |
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
|
struct fimc_vid_buffer *buf |
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= 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; |
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struct fimc_vid_cap *vid_cap = &fimc->vid_cap; |
|
struct exynos_video_entity *ve = &vid_cap->ve; |
|
unsigned long flags; |
|
int min_bufs; |
|
|
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spin_lock_irqsave(&fimc->slock, flags); |
|
fimc_prepare_addr(ctx, &buf->vb.vb2_buf, &ctx->d_frame, &buf->addr); |
|
|
|
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->addr, 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, |
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}; |
|
|
|
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) { |
|
pm_runtime_put_sync(&fimc->pdev->dev); |
|
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); |
|
|
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ret = fimc_pipeline_call(ve, open, &ve->vdev.entity, true); |
|
|
|
if (ret == 0) |
|
ve->vdev.entity.use_count++; |
|
|
|
fimc_md_graph_unlock(ve); |
|
|
|
if (ret == 0) |
|
ret = fimc_capture_set_default_format(fimc); |
|
|
|
if (ret < 0) { |
|
clear_bit(ST_CAPT_BUSY, &fimc->state); |
|
pm_runtime_put_sync(&fimc->pdev->dev); |
|
v4l2_fh_release(file); |
|
} |
|
} |
|
unlock: |
|
mutex_unlock(&fimc->lock); |
|
return ret; |
|
} |
|
|
|
static int fimc_capture_release(struct file *file) |
|
{ |
|
struct fimc_dev *fimc = video_drvdata(file); |
|
struct fimc_vid_cap *vc = &fimc->vid_cap; |
|
bool close = v4l2_fh_is_singular_file(file); |
|
int ret; |
|
|
|
dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state); |
|
|
|
mutex_lock(&fimc->lock); |
|
|
|
if (close && vc->streaming) { |
|
media_pipeline_stop(&vc->ve.vdev.entity); |
|
vc->streaming = false; |
|
} |
|
|
|
ret = _vb2_fop_release(file, NULL); |
|
|
|
if (close) { |
|
clear_bit(ST_CAPT_BUSY, &fimc->state); |
|
fimc_pipeline_call(&vc->ve, close); |
|
clear_bit(ST_CAPT_SUSPENDED, &fimc->state); |
|
|
|
fimc_md_graph_lock(&vc->ve); |
|
vc->ve.vdev.entity.use_count--; |
|
fimc_md_graph_unlock(&vc->ve); |
|
} |
|
|
|
pm_runtime_put_sync(&fimc->pdev->dev); |
|
mutex_unlock(&fimc->lock); |
|
|
|
return ret; |
|
} |
|
|
|
static const struct v4l2_file_operations fimc_capture_fops = { |
|
.owner = THIS_MODULE, |
|
.open = fimc_capture_open, |
|
.release = fimc_capture_release, |
|
.poll = vb2_fop_poll, |
|
.unlocked_ioctl = video_ioctl2, |
|
.mmap = vb2_fop_mmap, |
|
}; |
|
|
|
/* |
|
* Format and crop negotiation helpers |
|
*/ |
|
|
|
static struct fimc_fmt *fimc_capture_try_format(struct fimc_ctx *ctx, |
|
u32 *width, u32 *height, |
|
u32 *code, u32 *fourcc, int pad) |
|
{ |
|
bool rotation = ctx->rotation == 90 || ctx->rotation == 270; |
|
struct fimc_dev *fimc = ctx->fimc_dev; |
|
const struct fimc_variant *var = fimc->variant; |
|
const struct fimc_pix_limit *pl = var->pix_limit; |
|
struct fimc_frame *dst = &ctx->d_frame; |
|
u32 depth, min_w, max_w, min_h, align_h = 3; |
|
u32 mask = FMT_FLAGS_CAM; |
|
struct fimc_fmt *ffmt; |
|
|
|
/* Conversion from/to JPEG or User Defined format is not supported */ |
|
if (code && ctx->s_frame.fmt && pad == FIMC_SD_PAD_SOURCE && |
|
fimc_fmt_is_user_defined(ctx->s_frame.fmt->color)) |
|
*code = ctx->s_frame.fmt->mbus_code; |
|
|
|
if (fourcc && *fourcc != V4L2_PIX_FMT_JPEG && pad == FIMC_SD_PAD_SOURCE) |
|
mask |= FMT_FLAGS_M2M; |
|
|
|
if (pad == FIMC_SD_PAD_SINK_FIFO) |
|
mask = FMT_FLAGS_WRITEBACK; |
|
|
|
ffmt = fimc_find_format(fourcc, code, mask, 0); |
|
if (WARN_ON(!ffmt)) |
|
return NULL; |
|
|
|
if (code) |
|
*code = ffmt->mbus_code; |
|
if (fourcc) |
|
*fourcc = ffmt->fourcc; |
|
|
|
if (pad != FIMC_SD_PAD_SOURCE) { |
|
max_w = fimc_fmt_is_user_defined(ffmt->color) ? |
|
pl->scaler_dis_w : pl->scaler_en_w; |
|
/* Apply the camera input interface pixel constraints */ |
|
v4l_bound_align_image(width, max_t(u32, *width, 32), max_w, 4, |
|
height, max_t(u32, *height, 32), |
|
FIMC_CAMIF_MAX_HEIGHT, |
|
fimc_fmt_is_user_defined(ffmt->color) ? |
|
3 : 1, |
|
0); |
|
return ffmt; |
|
} |
|
/* Can't scale or crop in transparent (JPEG) transfer mode */ |
|
if (fimc_fmt_is_user_defined(ffmt->color)) { |
|
*width = ctx->s_frame.f_width; |
|
*height = ctx->s_frame.f_height; |
|
return ffmt; |
|
} |
|
/* Apply the scaler and the output DMA constraints */ |
|
max_w = rotation ? pl->out_rot_en_w : pl->out_rot_dis_w; |
|
if (ctx->state & FIMC_COMPOSE) { |
|
min_w = dst->offs_h + dst->width; |
|
min_h = dst->offs_v + dst->height; |
|
} else { |
|
min_w = var->min_out_pixsize; |
|
min_h = var->min_out_pixsize; |
|
} |
|
if (var->min_vsize_align == 1 && !rotation) |
|
align_h = fimc_fmt_is_rgb(ffmt->color) ? 0 : 1; |
|
|
|
depth = fimc_get_format_depth(ffmt); |
|
v4l_bound_align_image(width, min_w, max_w, |
|
ffs(var->min_out_pixsize) - 1, |
|
height, min_h, FIMC_CAMIF_MAX_HEIGHT, |
|
align_h, |
|
64/(ALIGN(depth, 8))); |
|
|
|
dbg("pad%d: code: 0x%x, %dx%d. dst fmt: %dx%d", |
|
pad, code ? *code : 0, *width, *height, |
|
dst->f_width, dst->f_height); |
|
|
|
return ffmt; |
|
} |
|
|
|
static void fimc_capture_try_selection(struct fimc_ctx *ctx, |
|
struct v4l2_rect *r, |
|
int target) |
|
{ |
|
bool rotate = ctx->rotation == 90 || ctx->rotation == 270; |
|
struct fimc_dev *fimc = ctx->fimc_dev; |
|
const struct fimc_variant *var = fimc->variant; |
|
const struct fimc_pix_limit *pl = var->pix_limit; |
|
struct fimc_frame *sink = &ctx->s_frame; |
|
u32 max_w, max_h, min_w = 0, min_h = 0, min_sz; |
|
u32 align_sz = 0, align_h = 4; |
|
u32 max_sc_h, max_sc_v; |
|
|
|
/* In JPEG transparent transfer mode cropping is not supported */ |
|
if (fimc_fmt_is_user_defined(ctx->d_frame.fmt->color)) { |
|
r->width = sink->f_width; |
|
r->height = sink->f_height; |
|
r->left = r->top = 0; |
|
return; |
|
} |
|
if (target == V4L2_SEL_TGT_COMPOSE) { |
|
u32 tmp_min_h = ffs(sink->width) - 3; |
|
u32 tmp_min_v = ffs(sink->height) - 1; |
|
|
|
if (ctx->rotation != 90 && ctx->rotation != 270) |
|
align_h = 1; |
|
max_sc_h = min(SCALER_MAX_HRATIO, 1 << tmp_min_h); |
|
max_sc_v = min(SCALER_MAX_VRATIO, 1 << tmp_min_v); |
|
min_sz = var->min_out_pixsize; |
|
} else { |
|
u32 depth = fimc_get_format_depth(sink->fmt); |
|
align_sz = 64/ALIGN(depth, 8); |
|
min_sz = var->min_inp_pixsize; |
|
min_w = min_h = min_sz; |
|
max_sc_h = max_sc_v = 1; |
|
} |
|
/* |
|
* For the compose rectangle the following constraints must be met: |
|
* - it must fit in the sink pad format rectangle (f_width/f_height); |
|
* - maximum downscaling ratio is 64; |
|
* - maximum crop size depends if the rotator is used or not; |
|
* - the sink pad format width/height must be 4 multiple of the |
|
* prescaler ratios determined by sink pad size and source pad crop, |
|
* the prescaler ratio is returned by fimc_get_scaler_factor(). |
|
*/ |
|
max_w = min_t(u32, |
|
rotate ? pl->out_rot_en_w : pl->out_rot_dis_w, |
|
rotate ? sink->f_height : sink->f_width); |
|
max_h = min_t(u32, FIMC_CAMIF_MAX_HEIGHT, sink->f_height); |
|
|
|
if (target == V4L2_SEL_TGT_COMPOSE) { |
|
min_w = min_t(u32, max_w, sink->f_width / max_sc_h); |
|
min_h = min_t(u32, max_h, sink->f_height / max_sc_v); |
|
if (rotate) { |
|
swap(max_sc_h, max_sc_v); |
|
swap(min_w, min_h); |
|
} |
|
} |
|
v4l_bound_align_image(&r->width, min_w, max_w, ffs(min_sz) - 1, |
|
&r->height, min_h, max_h, align_h, |
|
align_sz); |
|
/* Adjust left/top if crop/compose rectangle is out of bounds */ |
|
r->left = clamp_t(u32, r->left, 0, sink->f_width - r->width); |
|
r->top = clamp_t(u32, r->top, 0, sink->f_height - r->height); |
|
r->left = round_down(r->left, var->hor_offs_align); |
|
|
|
dbg("target %#x: (%d,%d)/%dx%d, sink fmt: %dx%d", |
|
target, r->left, r->top, r->width, r->height, |
|
sink->f_width, sink->f_height); |
|
} |
|
|
|
/* |
|
* The video node ioctl operations |
|
*/ |
|
static int fimc_cap_querycap(struct file *file, void *priv, |
|
struct v4l2_capability *cap) |
|
{ |
|
struct fimc_dev *fimc = video_drvdata(file); |
|
|
|
__fimc_vidioc_querycap(&fimc->pdev->dev, cap); |
|
return 0; |
|
} |
|
|
|
static int fimc_cap_enum_fmt(struct file *file, void *priv, |
|
struct v4l2_fmtdesc *f) |
|
{ |
|
struct fimc_fmt *fmt; |
|
|
|
fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM | FMT_FLAGS_M2M, |
|
f->index); |
|
if (!fmt) |
|
return -EINVAL; |
|
f->pixelformat = fmt->fourcc; |
|
return 0; |
|
} |
|
|
|
static struct media_entity *fimc_pipeline_get_head(struct media_entity *me) |
|
{ |
|
struct media_pad *pad = &me->pads[0]; |
|
|
|
while (!(pad->flags & MEDIA_PAD_FL_SOURCE)) { |
|
pad = media_entity_remote_pad(pad); |
|
if (!pad) |
|
break; |
|
me = pad->entity; |
|
pad = &me->pads[0]; |
|
} |
|
|
|
return me; |
|
} |
|
|
|
/** |
|
* fimc_pipeline_try_format - negotiate and/or set formats at pipeline |
|
* elements |
|
* @ctx: FIMC capture context |
|
* @tfmt: media bus format to try/set on subdevs |
|
* @fmt_id: fimc pixel format id corresponding to returned @tfmt (output) |
|
* @set: true to set format on subdevs, false to try only |
|
*/ |
|
static int fimc_pipeline_try_format(struct fimc_ctx *ctx, |
|
struct v4l2_mbus_framefmt *tfmt, |
|
struct fimc_fmt **fmt_id, |
|
bool set) |
|
{ |
|
struct fimc_dev *fimc = ctx->fimc_dev; |
|
struct fimc_pipeline *p = to_fimc_pipeline(fimc->vid_cap.ve.pipe); |
|
struct v4l2_subdev *sd = p->subdevs[IDX_SENSOR]; |
|
struct v4l2_subdev_format sfmt; |
|
struct v4l2_mbus_framefmt *mf = &sfmt.format; |
|
struct media_entity *me; |
|
struct fimc_fmt *ffmt; |
|
struct media_pad *pad; |
|
int ret, i = 1; |
|
u32 fcc; |
|
|
|
if (WARN_ON(!sd || !tfmt)) |
|
return -EINVAL; |
|
|
|
memset(&sfmt, 0, sizeof(sfmt)); |
|
sfmt.format = *tfmt; |
|
sfmt.which = set ? V4L2_SUBDEV_FORMAT_ACTIVE : V4L2_SUBDEV_FORMAT_TRY; |
|
|
|
me = fimc_pipeline_get_head(&sd->entity); |
|
|
|
while (1) { |
|
ffmt = fimc_find_format(NULL, mf->code != 0 ? &mf->code : NULL, |
|
FMT_FLAGS_CAM, i++); |
|
if (ffmt == NULL) { |
|
/* |
|
* Notify user-space if common pixel code for |
|
* host and sensor does not exist. |
|
*/ |
|
return -EINVAL; |
|
} |
|
mf->code = tfmt->code = ffmt->mbus_code; |
|
|
|
/* set format on all pipeline subdevs */ |
|
while (me != &fimc->vid_cap.subdev.entity) { |
|
sd = media_entity_to_v4l2_subdev(me); |
|
|
|
sfmt.pad = 0; |
|
ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &sfmt); |
|
if (ret) |
|
return ret; |
|
|
|
if (me->pads[0].flags & MEDIA_PAD_FL_SINK) { |
|
sfmt.pad = me->num_pads - 1; |
|
mf->code = tfmt->code; |
|
ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, |
|
&sfmt); |
|
if (ret) |
|
return ret; |
|
} |
|
|
|
pad = media_entity_remote_pad(&me->pads[sfmt.pad]); |
|
if (!pad) |
|
return -EINVAL; |
|
me = pad->entity; |
|
} |
|
|
|
if (mf->code != tfmt->code) |
|
continue; |
|
|
|
fcc = ffmt->fourcc; |
|
tfmt->width = mf->width; |
|
tfmt->height = mf->height; |
|
ffmt = fimc_capture_try_format(ctx, &tfmt->width, &tfmt->height, |
|
NULL, &fcc, FIMC_SD_PAD_SINK_CAM); |
|
ffmt = fimc_capture_try_format(ctx, &tfmt->width, &tfmt->height, |
|
NULL, &fcc, FIMC_SD_PAD_SOURCE); |
|
if (ffmt && ffmt->mbus_code) |
|
mf->code = ffmt->mbus_code; |
|
if (mf->width != tfmt->width || mf->height != tfmt->height) |
|
continue; |
|
tfmt->code = mf->code; |
|
break; |
|
} |
|
|
|
if (fmt_id && ffmt) |
|
*fmt_id = ffmt; |
|
*tfmt = *mf; |
|
|
|
return 0; |
|
} |
|
|
|
/** |
|
* fimc_get_sensor_frame_desc - query the sensor for media bus frame parameters |
|
* @sensor: pointer to the sensor subdev |
|
* @plane_fmt: provides plane sizes corresponding to the frame layout entries |
|
* @num_planes: number of planes |
|
* @try: true to set the frame parameters, false to query only |
|
* |
|
* This function is used by this driver only for compressed/blob data formats. |
|
*/ |
|
static int fimc_get_sensor_frame_desc(struct v4l2_subdev *sensor, |
|
struct v4l2_plane_pix_format *plane_fmt, |
|
unsigned int num_planes, bool try) |
|
{ |
|
struct v4l2_mbus_frame_desc fd; |
|
int i, ret; |
|
int pad; |
|
|
|
for (i = 0; i < num_planes; i++) |
|
fd.entry[i].length = plane_fmt[i].sizeimage; |
|
|
|
pad = sensor->entity.num_pads - 1; |
|
if (try) |
|
ret = v4l2_subdev_call(sensor, pad, set_frame_desc, pad, &fd); |
|
else |
|
ret = v4l2_subdev_call(sensor, pad, get_frame_desc, pad, &fd); |
|
|
|
if (ret < 0) |
|
return ret; |
|
|
|
if (num_planes != fd.num_entries) |
|
return -EINVAL; |
|
|
|
for (i = 0; i < num_planes; i++) |
|
plane_fmt[i].sizeimage = fd.entry[i].length; |
|
|
|
if (fd.entry[0].length > FIMC_MAX_JPEG_BUF_SIZE) { |
|
v4l2_err(sensor->v4l2_dev, "Unsupported buffer size: %u\n", |
|
fd.entry[0].length); |
|
|
|
return -EINVAL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int fimc_cap_g_fmt_mplane(struct file *file, void *fh, |
|
struct v4l2_format *f) |
|
{ |
|
struct fimc_dev *fimc = video_drvdata(file); |
|
|
|
__fimc_get_format(&fimc->vid_cap.ctx->d_frame, f); |
|
return 0; |
|
} |
|
|
|
/* |
|
* Try or set format on the fimc.X.capture video node and additionally |
|
* on the whole pipeline if @try is false. |
|
* Locking: the caller must _not_ hold the graph mutex. |
|
*/ |
|
static int __video_try_or_set_format(struct fimc_dev *fimc, |
|
struct v4l2_format *f, bool try, |
|
struct fimc_fmt **inp_fmt, |
|
struct fimc_fmt **out_fmt) |
|
{ |
|
struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; |
|
struct fimc_vid_cap *vc = &fimc->vid_cap; |
|
struct exynos_video_entity *ve = &vc->ve; |
|
struct fimc_ctx *ctx = vc->ctx; |
|
unsigned int width = 0, height = 0; |
|
int ret = 0; |
|
|
|
/* Pre-configure format at the camera input interface, for JPEG only */ |
|
if (fimc_jpeg_fourcc(pix->pixelformat)) { |
|
fimc_capture_try_format(ctx, &pix->width, &pix->height, |
|
NULL, &pix->pixelformat, |
|
FIMC_SD_PAD_SINK_CAM); |
|
if (try) { |
|
width = pix->width; |
|
height = pix->height; |
|
} else { |
|
ctx->s_frame.f_width = pix->width; |
|
ctx->s_frame.f_height = pix->height; |
|
} |
|
} |
|
|
|
/* Try the format at the scaler and the DMA output */ |
|
*out_fmt = fimc_capture_try_format(ctx, &pix->width, &pix->height, |
|
NULL, &pix->pixelformat, |
|
FIMC_SD_PAD_SOURCE); |
|
if (*out_fmt == NULL) |
|
return -EINVAL; |
|
|
|
/* Restore image width/height for JPEG (no resizing supported). */ |
|
if (try && fimc_jpeg_fourcc(pix->pixelformat)) { |
|
pix->width = width; |
|
pix->height = height; |
|
} |
|
|
|
/* Try to match format at the host and the sensor */ |
|
if (!vc->user_subdev_api) { |
|
struct v4l2_mbus_framefmt mbus_fmt; |
|
struct v4l2_mbus_framefmt *mf; |
|
|
|
mf = try ? &mbus_fmt : &fimc->vid_cap.ci_fmt; |
|
|
|
mf->code = (*out_fmt)->mbus_code; |
|
mf->width = pix->width; |
|
mf->height = pix->height; |
|
|
|
fimc_md_graph_lock(ve); |
|
ret = fimc_pipeline_try_format(ctx, mf, inp_fmt, try); |
|
fimc_md_graph_unlock(ve); |
|
|
|
if (ret < 0) |
|
return ret; |
|
|
|
pix->width = mf->width; |
|
pix->height = mf->height; |
|
} |
|
|
|
fimc_adjust_mplane_format(*out_fmt, pix->width, pix->height, pix); |
|
|
|
if ((*out_fmt)->flags & FMT_FLAGS_COMPRESSED) { |
|
struct v4l2_subdev *sensor; |
|
|
|
fimc_md_graph_lock(ve); |
|
|
|
sensor = __fimc_md_get_subdev(ve->pipe, IDX_SENSOR); |
|
if (sensor) |
|
fimc_get_sensor_frame_desc(sensor, pix->plane_fmt, |
|
(*out_fmt)->memplanes, try); |
|
else |
|
ret = -EPIPE; |
|
|
|
fimc_md_graph_unlock(ve); |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static int fimc_cap_try_fmt_mplane(struct file *file, void *fh, |
|
struct v4l2_format *f) |
|
{ |
|
struct fimc_dev *fimc = video_drvdata(file); |
|
struct fimc_fmt *out_fmt = NULL, *inp_fmt = NULL; |
|
|
|
return __video_try_or_set_format(fimc, f, true, &inp_fmt, &out_fmt); |
|
} |
|
|
|
static void fimc_capture_mark_jpeg_xfer(struct fimc_ctx *ctx, |
|
enum fimc_color_fmt color) |
|
{ |
|
bool jpeg = fimc_fmt_is_user_defined(color); |
|
|
|
ctx->scaler.enabled = !jpeg; |
|
fimc_ctrls_activate(ctx, !jpeg); |
|
|
|
if (jpeg) |
|
set_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state); |
|
else |
|
clear_bit(ST_CAPT_JPEG, &ctx->fimc_dev->state); |
|
} |
|
|
|
static int __fimc_capture_set_format(struct fimc_dev *fimc, |
|
struct v4l2_format *f) |
|
{ |
|
struct fimc_vid_cap *vc = &fimc->vid_cap; |
|
struct fimc_ctx *ctx = vc->ctx; |
|
struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; |
|
struct fimc_frame *ff = &ctx->d_frame; |
|
struct fimc_fmt *inp_fmt = NULL; |
|
int ret, i; |
|
|
|
if (vb2_is_busy(&fimc->vid_cap.vbq)) |
|
return -EBUSY; |
|
|
|
ret = __video_try_or_set_format(fimc, f, false, &inp_fmt, &ff->fmt); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* Update RGB Alpha control state and value range */ |
|
fimc_alpha_ctrl_update(ctx); |
|
|
|
for (i = 0; i < ff->fmt->memplanes; i++) { |
|
ff->bytesperline[i] = pix->plane_fmt[i].bytesperline; |
|
ff->payload[i] = pix->plane_fmt[i].sizeimage; |
|
} |
|
|
|
set_frame_bounds(ff, pix->width, pix->height); |
|
/* Reset the composition rectangle if not yet configured */ |
|
if (!(ctx->state & FIMC_COMPOSE)) |
|
set_frame_crop(ff, 0, 0, pix->width, pix->height); |
|
|
|
fimc_capture_mark_jpeg_xfer(ctx, ff->fmt->color); |
|
|
|
/* Reset cropping and set format at the camera interface input */ |
|
if (!vc->user_subdev_api) { |
|
ctx->s_frame.fmt = inp_fmt; |
|
set_frame_bounds(&ctx->s_frame, pix->width, pix->height); |
|
set_frame_crop(&ctx->s_frame, 0, 0, pix->width, pix->height); |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static int fimc_cap_s_fmt_mplane(struct file *file, void *priv, |
|
struct v4l2_format *f) |
|
{ |
|
struct fimc_dev *fimc = video_drvdata(file); |
|
|
|
return __fimc_capture_set_format(fimc, f); |
|
} |
|
|
|
static int fimc_cap_enum_input(struct file *file, void *priv, |
|
struct v4l2_input *i) |
|
{ |
|
struct fimc_dev *fimc = video_drvdata(file); |
|
struct exynos_video_entity *ve = &fimc->vid_cap.ve; |
|
struct v4l2_subdev *sd; |
|
|
|
if (i->index != 0) |
|
return -EINVAL; |
|
|
|
i->type = V4L2_INPUT_TYPE_CAMERA; |
|
fimc_md_graph_lock(ve); |
|
sd = __fimc_md_get_subdev(ve->pipe, IDX_SENSOR); |
|
fimc_md_graph_unlock(ve); |
|
|
|
if (sd) |
|
strscpy(i->name, sd->name, sizeof(i->name)); |
|
|
|
return 0; |
|
} |
|
|
|
static int fimc_cap_s_input(struct file *file, void *priv, unsigned int i) |
|
{ |
|
return i == 0 ? i : -EINVAL; |
|
} |
|
|
|
static int fimc_cap_g_input(struct file *file, void *priv, unsigned int *i) |
|
{ |
|
*i = 0; |
|
return 0; |
|
} |
|
|
|
/** |
|
* fimc_pipeline_validate - check for formats inconsistencies |
|
* between source and sink pad of each link |
|
* @fimc: the FIMC device this context applies to |
|
* |
|
* Return 0 if all formats match or -EPIPE otherwise. |
|
*/ |
|
static int fimc_pipeline_validate(struct fimc_dev *fimc) |
|
{ |
|
struct v4l2_subdev_format sink_fmt, src_fmt; |
|
struct fimc_vid_cap *vc = &fimc->vid_cap; |
|
struct v4l2_subdev *sd = &vc->subdev; |
|
struct fimc_pipeline *p = to_fimc_pipeline(vc->ve.pipe); |
|
struct media_pad *sink_pad, *src_pad; |
|
int i, ret; |
|
|
|
while (1) { |
|
/* |
|
* Find current entity sink pad and any remote sink pad linked |
|
* to it. We stop if there is no sink pad in current entity or |
|
* it is not linked to any other remote entity. |
|
*/ |
|
src_pad = NULL; |
|
|
|
for (i = 0; i < sd->entity.num_pads; i++) { |
|
struct media_pad *p = &sd->entity.pads[i]; |
|
|
|
if (p->flags & MEDIA_PAD_FL_SINK) { |
|
sink_pad = p; |
|
src_pad = media_entity_remote_pad(sink_pad); |
|
if (src_pad) |
|
break; |
|
} |
|
} |
|
|
|
if (!src_pad || !is_media_entity_v4l2_subdev(src_pad->entity)) |
|
break; |
|
|
|
/* Don't call FIMC subdev operation to avoid nested locking */ |
|
if (sd == &vc->subdev) { |
|
struct fimc_frame *ff = &vc->ctx->s_frame; |
|
sink_fmt.format.width = ff->f_width; |
|
sink_fmt.format.height = ff->f_height; |
|
sink_fmt.format.code = ff->fmt ? ff->fmt->mbus_code : 0; |
|
} else { |
|
sink_fmt.pad = sink_pad->index; |
|
sink_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; |
|
ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sink_fmt); |
|
if (ret < 0 && ret != -ENOIOCTLCMD) |
|
return -EPIPE; |
|
} |
|
|
|
/* Retrieve format at the source pad */ |
|
sd = media_entity_to_v4l2_subdev(src_pad->entity); |
|
src_fmt.pad = src_pad->index; |
|
src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; |
|
ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt); |
|
if (ret < 0 && ret != -ENOIOCTLCMD) |
|
return -EPIPE; |
|
|
|
if (src_fmt.format.width != sink_fmt.format.width || |
|
src_fmt.format.height != sink_fmt.format.height || |
|
src_fmt.format.code != sink_fmt.format.code) |
|
return -EPIPE; |
|
|
|
if (sd == p->subdevs[IDX_SENSOR] && |
|
fimc_user_defined_mbus_fmt(src_fmt.format.code)) { |
|
struct v4l2_plane_pix_format plane_fmt[FIMC_MAX_PLANES]; |
|
struct fimc_frame *frame = &vc->ctx->d_frame; |
|
unsigned int i; |
|
|
|
ret = fimc_get_sensor_frame_desc(sd, plane_fmt, |
|
frame->fmt->memplanes, |
|
false); |
|
if (ret < 0) |
|
return -EPIPE; |
|
|
|
for (i = 0; i < frame->fmt->memplanes; i++) |
|
if (frame->payload[i] < plane_fmt[i].sizeimage) |
|
return -EPIPE; |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
static int fimc_cap_streamon(struct file *file, void *priv, |
|
enum v4l2_buf_type type) |
|
{ |
|
struct fimc_dev *fimc = video_drvdata(file); |
|
struct fimc_vid_cap *vc = &fimc->vid_cap; |
|
struct media_entity *entity = &vc->ve.vdev.entity; |
|
struct fimc_source_info *si = NULL; |
|
struct v4l2_subdev *sd; |
|
int ret; |
|
|
|
if (fimc_capture_active(fimc)) |
|
return -EBUSY; |
|
|
|
ret = media_pipeline_start(entity, &vc->ve.pipe->mp); |
|
if (ret < 0) |
|
return ret; |
|
|
|
sd = __fimc_md_get_subdev(vc->ve.pipe, IDX_SENSOR); |
|
if (sd) |
|
si = v4l2_get_subdev_hostdata(sd); |
|
|
|
if (si == NULL) { |
|
ret = -EPIPE; |
|
goto err_p_stop; |
|
} |
|
/* |
|
* Save configuration data related to currently attached image |
|
* sensor or other data source, e.g. FIMC-IS. |
|
*/ |
|
vc->source_config = *si; |
|
|
|
if (vc->input == GRP_ID_FIMC_IS) |
|
vc->source_config.fimc_bus_type = FIMC_BUS_TYPE_ISP_WRITEBACK; |
|
|
|
if (vc->user_subdev_api) { |
|
ret = fimc_pipeline_validate(fimc); |
|
if (ret < 0) |
|
goto err_p_stop; |
|
} |
|
|
|
ret = vb2_ioctl_streamon(file, priv, type); |
|
if (!ret) { |
|
vc->streaming = true; |
|
return ret; |
|
} |
|
|
|
err_p_stop: |
|
media_pipeline_stop(entity); |
|
return ret; |
|
} |
|
|
|
static int fimc_cap_streamoff(struct file *file, void *priv, |
|
enum v4l2_buf_type type) |
|
{ |
|
struct fimc_dev *fimc = video_drvdata(file); |
|
struct fimc_vid_cap *vc = &fimc->vid_cap; |
|
int ret; |
|
|
|
ret = vb2_ioctl_streamoff(file, priv, type); |
|
if (ret < 0) |
|
return ret; |
|
|
|
if (vc->streaming) { |
|
media_pipeline_stop(&vc->ve.vdev.entity); |
|
vc->streaming = false; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int fimc_cap_reqbufs(struct file *file, void *priv, |
|
struct v4l2_requestbuffers *reqbufs) |
|
{ |
|
struct fimc_dev *fimc = video_drvdata(file); |
|
int ret; |
|
|
|
ret = vb2_ioctl_reqbufs(file, priv, reqbufs); |
|
|
|
if (!ret) |
|
fimc->vid_cap.reqbufs_count = reqbufs->count; |
|
|
|
return ret; |
|
} |
|
|
|
static int fimc_cap_g_selection(struct file *file, void *fh, |
|
struct v4l2_selection *s) |
|
{ |
|
struct fimc_dev *fimc = video_drvdata(file); |
|
struct fimc_ctx *ctx = fimc->vid_cap.ctx; |
|
struct fimc_frame *f = &ctx->s_frame; |
|
|
|
if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
|
return -EINVAL; |
|
|
|
switch (s->target) { |
|
case V4L2_SEL_TGT_COMPOSE_DEFAULT: |
|
case V4L2_SEL_TGT_COMPOSE_BOUNDS: |
|
f = &ctx->d_frame; |
|
fallthrough; |
|
case V4L2_SEL_TGT_CROP_BOUNDS: |
|
case V4L2_SEL_TGT_CROP_DEFAULT: |
|
s->r.left = 0; |
|
s->r.top = 0; |
|
s->r.width = f->o_width; |
|
s->r.height = f->o_height; |
|
return 0; |
|
|
|
case V4L2_SEL_TGT_COMPOSE: |
|
f = &ctx->d_frame; |
|
fallthrough; |
|
case V4L2_SEL_TGT_CROP: |
|
s->r.left = f->offs_h; |
|
s->r.top = f->offs_v; |
|
s->r.width = f->width; |
|
s->r.height = f->height; |
|
return 0; |
|
} |
|
|
|
return -EINVAL; |
|
} |
|
|
|
static int fimc_cap_s_selection(struct file *file, void *fh, |
|
struct v4l2_selection *s) |
|
{ |
|
struct fimc_dev *fimc = video_drvdata(file); |
|
struct fimc_ctx *ctx = fimc->vid_cap.ctx; |
|
struct v4l2_rect rect = s->r; |
|
struct fimc_frame *f; |
|
unsigned long flags; |
|
|
|
if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
|
return -EINVAL; |
|
|
|
if (s->target == V4L2_SEL_TGT_COMPOSE) |
|
f = &ctx->d_frame; |
|
else if (s->target == V4L2_SEL_TGT_CROP) |
|
f = &ctx->s_frame; |
|
else |
|
return -EINVAL; |
|
|
|
fimc_capture_try_selection(ctx, &rect, s->target); |
|
|
|
if (s->flags & V4L2_SEL_FLAG_LE && |
|
!v4l2_rect_enclosed(&rect, &s->r)) |
|
return -ERANGE; |
|
|
|
if (s->flags & V4L2_SEL_FLAG_GE && |
|
!v4l2_rect_enclosed(&s->r, &rect)) |
|
return -ERANGE; |
|
|
|
s->r = rect; |
|
spin_lock_irqsave(&fimc->slock, flags); |
|
set_frame_crop(f, s->r.left, s->r.top, s->r.width, |
|
s->r.height); |
|
spin_unlock_irqrestore(&fimc->slock, flags); |
|
|
|
set_bit(ST_CAPT_APPLY_CFG, &fimc->state); |
|
return 0; |
|
} |
|
|
|
static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = { |
|
.vidioc_querycap = fimc_cap_querycap, |
|
|
|
.vidioc_enum_fmt_vid_cap = fimc_cap_enum_fmt, |
|
.vidioc_try_fmt_vid_cap_mplane = fimc_cap_try_fmt_mplane, |
|
.vidioc_s_fmt_vid_cap_mplane = fimc_cap_s_fmt_mplane, |
|
.vidioc_g_fmt_vid_cap_mplane = fimc_cap_g_fmt_mplane, |
|
|
|
.vidioc_reqbufs = fimc_cap_reqbufs, |
|
.vidioc_querybuf = vb2_ioctl_querybuf, |
|
.vidioc_qbuf = vb2_ioctl_qbuf, |
|
.vidioc_dqbuf = vb2_ioctl_dqbuf, |
|
.vidioc_expbuf = vb2_ioctl_expbuf, |
|
.vidioc_prepare_buf = vb2_ioctl_prepare_buf, |
|
.vidioc_create_bufs = vb2_ioctl_create_bufs, |
|
|
|
.vidioc_streamon = fimc_cap_streamon, |
|
.vidioc_streamoff = fimc_cap_streamoff, |
|
|
|
.vidioc_g_selection = fimc_cap_g_selection, |
|
.vidioc_s_selection = fimc_cap_s_selection, |
|
|
|
.vidioc_enum_input = fimc_cap_enum_input, |
|
.vidioc_s_input = fimc_cap_s_input, |
|
.vidioc_g_input = fimc_cap_g_input, |
|
}; |
|
|
|
/* Capture subdev media entity operations */ |
|
static int fimc_link_setup(struct media_entity *entity, |
|
const struct media_pad *local, |
|
const struct media_pad *remote, u32 flags) |
|
{ |
|
struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity); |
|
struct fimc_dev *fimc = v4l2_get_subdevdata(sd); |
|
struct fimc_vid_cap *vc = &fimc->vid_cap; |
|
struct v4l2_subdev *sensor; |
|
|
|
if (!is_media_entity_v4l2_subdev(remote->entity)) |
|
return -EINVAL; |
|
|
|
if (WARN_ON(fimc == NULL)) |
|
return 0; |
|
|
|
dbg("%s --> %s, flags: 0x%x. input: 0x%x", |
|
local->entity->name, remote->entity->name, flags, |
|
fimc->vid_cap.input); |
|
|
|
if (!(flags & MEDIA_LNK_FL_ENABLED)) { |
|
fimc->vid_cap.input = 0; |
|
return 0; |
|
} |
|
|
|
if (vc->input != 0) |
|
return -EBUSY; |
|
|
|
vc->input = sd->grp_id; |
|
|
|
if (vc->user_subdev_api) |
|
return 0; |
|
|
|
/* Inherit V4L2 controls from the image sensor subdev. */ |
|
sensor = fimc_find_remote_sensor(&vc->subdev.entity); |
|
if (sensor == NULL) |
|
return 0; |
|
|
|
return v4l2_ctrl_add_handler(&vc->ctx->ctrls.handler, |
|
sensor->ctrl_handler, NULL, true); |
|
} |
|
|
|
static const struct media_entity_operations fimc_sd_media_ops = { |
|
.link_setup = fimc_link_setup, |
|
}; |
|
|
|
/** |
|
* fimc_sensor_notify - v4l2_device notification from a sensor subdev |
|
* @sd: pointer to a subdev generating the notification |
|
* @notification: the notification type, must be S5P_FIMC_TX_END_NOTIFY |
|
* @arg: pointer to an u32 type integer that stores the frame payload value |
|
* |
|
* The End Of Frame notification sent by sensor subdev in its still capture |
|
* mode. If there is only a single VSYNC generated by the sensor at the |
|
* beginning of a frame transmission, FIMC does not issue the LastIrq |
|
* (end of frame) interrupt. And this notification is used to complete the |
|
* frame capture and returning a buffer to user-space. Subdev drivers should |
|
* call this notification from their last 'End of frame capture' interrupt. |
|
*/ |
|
void fimc_sensor_notify(struct v4l2_subdev *sd, unsigned int notification, |
|
void *arg) |
|
{ |
|
struct fimc_source_info *si; |
|
struct fimc_vid_buffer *buf; |
|
struct fimc_md *fmd; |
|
struct fimc_dev *fimc; |
|
unsigned long flags; |
|
|
|
if (sd == NULL) |
|
return; |
|
|
|
si = v4l2_get_subdev_hostdata(sd); |
|
fmd = entity_to_fimc_mdev(&sd->entity); |
|
|
|
spin_lock_irqsave(&fmd->slock, flags); |
|
|
|
fimc = si ? source_to_sensor_info(si)->host : NULL; |
|
|
|
if (fimc && arg && notification == S5P_FIMC_TX_END_NOTIFY && |
|
test_bit(ST_CAPT_PEND, &fimc->state)) { |
|
unsigned long irq_flags; |
|
spin_lock_irqsave(&fimc->slock, irq_flags); |
|
if (!list_empty(&fimc->vid_cap.active_buf_q)) { |
|
buf = list_entry(fimc->vid_cap.active_buf_q.next, |
|
struct fimc_vid_buffer, list); |
|
vb2_set_plane_payload(&buf->vb.vb2_buf, 0, |
|
*((u32 *)arg)); |
|
} |
|
fimc_capture_irq_handler(fimc, 1); |
|
fimc_deactivate_capture(fimc); |
|
spin_unlock_irqrestore(&fimc->slock, irq_flags); |
|
} |
|
spin_unlock_irqrestore(&fmd->slock, flags); |
|
} |
|
|
|
static int fimc_subdev_enum_mbus_code(struct v4l2_subdev *sd, |
|
struct v4l2_subdev_pad_config *cfg, |
|
struct v4l2_subdev_mbus_code_enum *code) |
|
{ |
|
struct fimc_fmt *fmt; |
|
|
|
fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, code->index); |
|
if (!fmt) |
|
return -EINVAL; |
|
code->code = fmt->mbus_code; |
|
return 0; |
|
} |
|
|
|
static int fimc_subdev_get_fmt(struct v4l2_subdev *sd, |
|
struct v4l2_subdev_pad_config *cfg, |
|
struct v4l2_subdev_format *fmt) |
|
{ |
|
struct fimc_dev *fimc = v4l2_get_subdevdata(sd); |
|
struct fimc_ctx *ctx = fimc->vid_cap.ctx; |
|
struct fimc_frame *ff = &ctx->s_frame; |
|
struct v4l2_mbus_framefmt *mf; |
|
|
|
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { |
|
mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); |
|
fmt->format = *mf; |
|
return 0; |
|
} |
|
|
|
mf = &fmt->format; |
|
mutex_lock(&fimc->lock); |
|
|
|
switch (fmt->pad) { |
|
case FIMC_SD_PAD_SOURCE: |
|
if (!WARN_ON(ff->fmt == NULL)) |
|
mf->code = ff->fmt->mbus_code; |
|
/* Sink pads crop rectangle size */ |
|
mf->width = ff->width; |
|
mf->height = ff->height; |
|
break; |
|
case FIMC_SD_PAD_SINK_FIFO: |
|
*mf = fimc->vid_cap.wb_fmt; |
|
break; |
|
case FIMC_SD_PAD_SINK_CAM: |
|
default: |
|
*mf = fimc->vid_cap.ci_fmt; |
|
break; |
|
} |
|
|
|
mutex_unlock(&fimc->lock); |
|
mf->colorspace = V4L2_COLORSPACE_JPEG; |
|
|
|
return 0; |
|
} |
|
|
|
static int fimc_subdev_set_fmt(struct v4l2_subdev *sd, |
|
struct v4l2_subdev_pad_config *cfg, |
|
struct v4l2_subdev_format *fmt) |
|
{ |
|
struct fimc_dev *fimc = v4l2_get_subdevdata(sd); |
|
struct v4l2_mbus_framefmt *mf = &fmt->format; |
|
struct fimc_vid_cap *vc = &fimc->vid_cap; |
|
struct fimc_ctx *ctx = vc->ctx; |
|
struct fimc_frame *ff; |
|
struct fimc_fmt *ffmt; |
|
|
|
dbg("pad%d: code: 0x%x, %dx%d", |
|
fmt->pad, mf->code, mf->width, mf->height); |
|
|
|
if (fmt->pad == FIMC_SD_PAD_SOURCE && vb2_is_busy(&vc->vbq)) |
|
return -EBUSY; |
|
|
|
mutex_lock(&fimc->lock); |
|
ffmt = fimc_capture_try_format(ctx, &mf->width, &mf->height, |
|
&mf->code, NULL, fmt->pad); |
|
mutex_unlock(&fimc->lock); |
|
mf->colorspace = V4L2_COLORSPACE_JPEG; |
|
|
|
if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { |
|
mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); |
|
*mf = fmt->format; |
|
return 0; |
|
} |
|
/* There must be a bug in the driver if this happens */ |
|
if (WARN_ON(ffmt == NULL)) |
|
return -EINVAL; |
|
|
|
/* Update RGB Alpha control state and value range */ |
|
fimc_alpha_ctrl_update(ctx); |
|
|
|
fimc_capture_mark_jpeg_xfer(ctx, ffmt->color); |
|
if (fmt->pad == FIMC_SD_PAD_SOURCE) { |
|
ff = &ctx->d_frame; |
|
/* Sink pads crop rectangle size */ |
|
mf->width = ctx->s_frame.width; |
|
mf->height = ctx->s_frame.height; |
|
} else { |
|
ff = &ctx->s_frame; |
|
} |
|
|
|
mutex_lock(&fimc->lock); |
|
set_frame_bounds(ff, mf->width, mf->height); |
|
|
|
if (fmt->pad == FIMC_SD_PAD_SINK_FIFO) |
|
vc->wb_fmt = *mf; |
|
else if (fmt->pad == FIMC_SD_PAD_SINK_CAM) |
|
vc->ci_fmt = *mf; |
|
|
|
ff->fmt = ffmt; |
|
|
|
/* Reset the crop rectangle if required. */ |
|
if (!(fmt->pad == FIMC_SD_PAD_SOURCE && (ctx->state & FIMC_COMPOSE))) |
|
set_frame_crop(ff, 0, 0, mf->width, mf->height); |
|
|
|
if (fmt->pad != FIMC_SD_PAD_SOURCE) |
|
ctx->state &= ~FIMC_COMPOSE; |
|
|
|
mutex_unlock(&fimc->lock); |
|
return 0; |
|
} |
|
|
|
static int fimc_subdev_get_selection(struct v4l2_subdev *sd, |
|
struct v4l2_subdev_pad_config *cfg, |
|
struct v4l2_subdev_selection *sel) |
|
{ |
|
struct fimc_dev *fimc = v4l2_get_subdevdata(sd); |
|
struct fimc_ctx *ctx = fimc->vid_cap.ctx; |
|
struct fimc_frame *f = &ctx->s_frame; |
|
struct v4l2_rect *r = &sel->r; |
|
struct v4l2_rect *try_sel; |
|
|
|
if (sel->pad == FIMC_SD_PAD_SOURCE) |
|
return -EINVAL; |
|
|
|
mutex_lock(&fimc->lock); |
|
|
|
switch (sel->target) { |
|
case V4L2_SEL_TGT_COMPOSE_BOUNDS: |
|
f = &ctx->d_frame; |
|
fallthrough; |
|
case V4L2_SEL_TGT_CROP_BOUNDS: |
|
r->width = f->o_width; |
|
r->height = f->o_height; |
|
r->left = 0; |
|
r->top = 0; |
|
mutex_unlock(&fimc->lock); |
|
return 0; |
|
|
|
case V4L2_SEL_TGT_CROP: |
|
try_sel = v4l2_subdev_get_try_crop(sd, cfg, sel->pad); |
|
break; |
|
case V4L2_SEL_TGT_COMPOSE: |
|
try_sel = v4l2_subdev_get_try_compose(sd, cfg, sel->pad); |
|
f = &ctx->d_frame; |
|
break; |
|
default: |
|
mutex_unlock(&fimc->lock); |
|
return -EINVAL; |
|
} |
|
|
|
if (sel->which == V4L2_SUBDEV_FORMAT_TRY) { |
|
sel->r = *try_sel; |
|
} else { |
|
r->left = f->offs_h; |
|
r->top = f->offs_v; |
|
r->width = f->width; |
|
r->height = f->height; |
|
} |
|
|
|
dbg("target %#x: l:%d, t:%d, %dx%d, f_w: %d, f_h: %d", |
|
sel->pad, r->left, r->top, r->width, r->height, |
|
f->f_width, f->f_height); |
|
|
|
mutex_unlock(&fimc->lock); |
|
return 0; |
|
} |
|
|
|
static int fimc_subdev_set_selection(struct v4l2_subdev *sd, |
|
struct v4l2_subdev_pad_config *cfg, |
|
struct v4l2_subdev_selection *sel) |
|
{ |
|
struct fimc_dev *fimc = v4l2_get_subdevdata(sd); |
|
struct fimc_ctx *ctx = fimc->vid_cap.ctx; |
|
struct fimc_frame *f = &ctx->s_frame; |
|
struct v4l2_rect *r = &sel->r; |
|
struct v4l2_rect *try_sel; |
|
unsigned long flags; |
|
|
|
if (sel->pad == FIMC_SD_PAD_SOURCE) |
|
return -EINVAL; |
|
|
|
mutex_lock(&fimc->lock); |
|
fimc_capture_try_selection(ctx, r, V4L2_SEL_TGT_CROP); |
|
|
|
switch (sel->target) { |
|
case V4L2_SEL_TGT_CROP: |
|
try_sel = v4l2_subdev_get_try_crop(sd, cfg, sel->pad); |
|
break; |
|
case V4L2_SEL_TGT_COMPOSE: |
|
try_sel = v4l2_subdev_get_try_compose(sd, cfg, sel->pad); |
|
f = &ctx->d_frame; |
|
break; |
|
default: |
|
mutex_unlock(&fimc->lock); |
|
return -EINVAL; |
|
} |
|
|
|
if (sel->which == V4L2_SUBDEV_FORMAT_TRY) { |
|
*try_sel = sel->r; |
|
} else { |
|
spin_lock_irqsave(&fimc->slock, flags); |
|
set_frame_crop(f, r->left, r->top, r->width, r->height); |
|
set_bit(ST_CAPT_APPLY_CFG, &fimc->state); |
|
if (sel->target == V4L2_SEL_TGT_COMPOSE) |
|
ctx->state |= FIMC_COMPOSE; |
|
spin_unlock_irqrestore(&fimc->slock, flags); |
|
} |
|
|
|
dbg("target %#x: (%d,%d)/%dx%d", sel->target, r->left, r->top, |
|
r->width, r->height); |
|
|
|
mutex_unlock(&fimc->lock); |
|
return 0; |
|
} |
|
|
|
static const struct v4l2_subdev_pad_ops fimc_subdev_pad_ops = { |
|
.enum_mbus_code = fimc_subdev_enum_mbus_code, |
|
.get_selection = fimc_subdev_get_selection, |
|
.set_selection = fimc_subdev_set_selection, |
|
.get_fmt = fimc_subdev_get_fmt, |
|
.set_fmt = fimc_subdev_set_fmt, |
|
}; |
|
|
|
static const struct v4l2_subdev_ops fimc_subdev_ops = { |
|
.pad = &fimc_subdev_pad_ops, |
|
}; |
|
|
|
/* Set default format at the sensor and host interface */ |
|
static int fimc_capture_set_default_format(struct fimc_dev *fimc) |
|
{ |
|
struct v4l2_format fmt = { |
|
.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE, |
|
.fmt.pix_mp = { |
|
.width = FIMC_DEFAULT_WIDTH, |
|
.height = FIMC_DEFAULT_HEIGHT, |
|
.pixelformat = V4L2_PIX_FMT_YUYV, |
|
.field = V4L2_FIELD_NONE, |
|
.colorspace = V4L2_COLORSPACE_JPEG, |
|
}, |
|
}; |
|
|
|
return __fimc_capture_set_format(fimc, &fmt); |
|
} |
|
|
|
/* fimc->lock must be already initialized */ |
|
static int fimc_register_capture_device(struct fimc_dev *fimc, |
|
struct v4l2_device *v4l2_dev) |
|
{ |
|
struct video_device *vfd = &fimc->vid_cap.ve.vdev; |
|
struct vb2_queue *q = &fimc->vid_cap.vbq; |
|
struct fimc_ctx *ctx; |
|
struct fimc_vid_cap *vid_cap; |
|
struct fimc_fmt *fmt; |
|
int ret = -ENOMEM; |
|
|
|
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); |
|
if (!ctx) |
|
return -ENOMEM; |
|
|
|
ctx->fimc_dev = fimc; |
|
ctx->in_path = FIMC_IO_CAMERA; |
|
ctx->out_path = FIMC_IO_DMA; |
|
ctx->state = FIMC_CTX_CAP; |
|
ctx->s_frame.fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0); |
|
ctx->d_frame.fmt = ctx->s_frame.fmt; |
|
|
|
memset(vfd, 0, sizeof(*vfd)); |
|
snprintf(vfd->name, sizeof(vfd->name), "fimc.%d.capture", fimc->id); |
|
|
|
vfd->fops = &fimc_capture_fops; |
|
vfd->ioctl_ops = &fimc_capture_ioctl_ops; |
|
vfd->v4l2_dev = v4l2_dev; |
|
vfd->minor = -1; |
|
vfd->release = video_device_release_empty; |
|
vfd->queue = q; |
|
vfd->lock = &fimc->lock; |
|
vfd->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE_MPLANE; |
|
|
|
video_set_drvdata(vfd, fimc); |
|
vid_cap = &fimc->vid_cap; |
|
vid_cap->active_buf_cnt = 0; |
|
vid_cap->reqbufs_count = 0; |
|
vid_cap->ctx = ctx; |
|
|
|
INIT_LIST_HEAD(&vid_cap->pending_buf_q); |
|
INIT_LIST_HEAD(&vid_cap->active_buf_q); |
|
|
|
memset(q, 0, sizeof(*q)); |
|
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; |
|
q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; |
|
q->drv_priv = ctx; |
|
q->ops = &fimc_capture_qops; |
|
q->mem_ops = &vb2_dma_contig_memops; |
|
q->buf_struct_size = sizeof(struct fimc_vid_buffer); |
|
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
|
q->lock = &fimc->lock; |
|
q->dev = &fimc->pdev->dev; |
|
|
|
ret = vb2_queue_init(q); |
|
if (ret) |
|
goto err_free_ctx; |
|
|
|
/* Default format configuration */ |
|
fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0); |
|
vid_cap->ci_fmt.width = FIMC_DEFAULT_WIDTH; |
|
vid_cap->ci_fmt.height = FIMC_DEFAULT_HEIGHT; |
|
vid_cap->ci_fmt.code = fmt->mbus_code; |
|
|
|
ctx->s_frame.width = FIMC_DEFAULT_WIDTH; |
|
ctx->s_frame.height = FIMC_DEFAULT_HEIGHT; |
|
ctx->s_frame.fmt = fmt; |
|
|
|
fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_WRITEBACK, 0); |
|
vid_cap->wb_fmt = vid_cap->ci_fmt; |
|
vid_cap->wb_fmt.code = fmt->mbus_code; |
|
|
|
vid_cap->vd_pad.flags = MEDIA_PAD_FL_SINK; |
|
vfd->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER; |
|
ret = media_entity_pads_init(&vfd->entity, 1, &vid_cap->vd_pad); |
|
if (ret) |
|
goto err_free_ctx; |
|
|
|
ret = fimc_ctrls_create(ctx); |
|
if (ret) |
|
goto err_me_cleanup; |
|
|
|
ret = video_register_device(vfd, VFL_TYPE_VIDEO, -1); |
|
if (ret) |
|
goto err_ctrl_free; |
|
|
|
v4l2_info(v4l2_dev, "Registered %s as /dev/%s\n", |
|
vfd->name, video_device_node_name(vfd)); |
|
|
|
vfd->ctrl_handler = &ctx->ctrls.handler; |
|
return 0; |
|
|
|
err_ctrl_free: |
|
fimc_ctrls_delete(ctx); |
|
err_me_cleanup: |
|
media_entity_cleanup(&vfd->entity); |
|
err_free_ctx: |
|
kfree(ctx); |
|
return ret; |
|
} |
|
|
|
static int fimc_capture_subdev_registered(struct v4l2_subdev *sd) |
|
{ |
|
struct fimc_dev *fimc = v4l2_get_subdevdata(sd); |
|
int ret; |
|
|
|
if (fimc == NULL) |
|
return -ENXIO; |
|
|
|
ret = fimc_register_m2m_device(fimc, sd->v4l2_dev); |
|
if (ret) |
|
return ret; |
|
|
|
fimc->vid_cap.ve.pipe = v4l2_get_subdev_hostdata(sd); |
|
|
|
ret = fimc_register_capture_device(fimc, sd->v4l2_dev); |
|
if (ret) { |
|
fimc_unregister_m2m_device(fimc); |
|
fimc->vid_cap.ve.pipe = NULL; |
|
} |
|
|
|
return ret; |
|
} |
|
|
|
static void fimc_capture_subdev_unregistered(struct v4l2_subdev *sd) |
|
{ |
|
struct fimc_dev *fimc = v4l2_get_subdevdata(sd); |
|
struct video_device *vdev; |
|
|
|
if (fimc == NULL) |
|
return; |
|
|
|
mutex_lock(&fimc->lock); |
|
|
|
fimc_unregister_m2m_device(fimc); |
|
vdev = &fimc->vid_cap.ve.vdev; |
|
|
|
if (video_is_registered(vdev)) { |
|
video_unregister_device(vdev); |
|
media_entity_cleanup(&vdev->entity); |
|
fimc_ctrls_delete(fimc->vid_cap.ctx); |
|
fimc->vid_cap.ve.pipe = NULL; |
|
} |
|
kfree(fimc->vid_cap.ctx); |
|
fimc->vid_cap.ctx = NULL; |
|
|
|
mutex_unlock(&fimc->lock); |
|
} |
|
|
|
static const struct v4l2_subdev_internal_ops fimc_capture_sd_internal_ops = { |
|
.registered = fimc_capture_subdev_registered, |
|
.unregistered = fimc_capture_subdev_unregistered, |
|
}; |
|
|
|
int fimc_initialize_capture_subdev(struct fimc_dev *fimc) |
|
{ |
|
struct v4l2_subdev *sd = &fimc->vid_cap.subdev; |
|
int ret; |
|
|
|
v4l2_subdev_init(sd, &fimc_subdev_ops); |
|
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; |
|
snprintf(sd->name, sizeof(sd->name), "FIMC.%d", fimc->id); |
|
|
|
fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_CAM].flags = MEDIA_PAD_FL_SINK; |
|
fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_FIFO].flags = MEDIA_PAD_FL_SINK; |
|
fimc->vid_cap.sd_pads[FIMC_SD_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; |
|
ret = media_entity_pads_init(&sd->entity, FIMC_SD_PADS_NUM, |
|
fimc->vid_cap.sd_pads); |
|
if (ret) |
|
return ret; |
|
|
|
sd->entity.ops = &fimc_sd_media_ops; |
|
sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER; |
|
sd->internal_ops = &fimc_capture_sd_internal_ops; |
|
v4l2_set_subdevdata(sd, fimc); |
|
return 0; |
|
} |
|
|
|
void fimc_unregister_capture_subdev(struct fimc_dev *fimc) |
|
{ |
|
struct v4l2_subdev *sd = &fimc->vid_cap.subdev; |
|
|
|
v4l2_device_unregister_subdev(sd); |
|
media_entity_cleanup(&sd->entity); |
|
v4l2_set_subdevdata(sd, NULL); |
|
}
|
|
|