// 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 <s.nawrocki@samsung.com>
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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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#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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#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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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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if (ctx == NULL || ctx->s_frame.fmt == NULL)
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return -EINVAL;
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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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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);
|
|
fimc_hw_set_camera_polarity(fimc, si);
|
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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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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* 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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spin_lock_irqsave(&fimc->slock, flags);
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streaming = fimc->state & (1 << ST_CAPT_ISP_STREAM);
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fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_SHUT |
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1 << ST_CAPT_STREAM | 1 << ST_CAPT_ISP_STREAM);
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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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/* 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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spin_unlock_irqrestore(&fimc->slock, flags);
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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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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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if (!fimc_capture_active(fimc))
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return 0;
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spin_lock_irqsave(&fimc->slock, flags);
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set_bit(ST_CAPT_SHUT, &fimc->state);
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fimc_deactivate_capture(fimc);
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spin_unlock_irqrestore(&fimc->slock, flags);
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wait_event_timeout(fimc->irq_queue,
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!test_bit(ST_CAPT_SHUT, &fimc->state),
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(2*HZ/10)); /* 200 ms */
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return fimc_capture_state_cleanup(fimc, suspend);
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}
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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
|
* 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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fimc_hw_set_camera_offset(fimc, &ctx->s_frame);
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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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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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clear_bit(ST_CAPT_APPLY_CFG, &fimc->state);
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return ret;
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}
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void fimc_capture_irq_handler(struct fimc_dev *fimc, int deq_buf)
|
{
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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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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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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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v_buf->vb.vb2_buf.timestamp = ktime_get_ns();
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v_buf->vb.sequence = cap->frame_count++;
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vb2_buffer_done(&v_buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
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}
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if (!list_empty(&cap->pending_buf_q)) {
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v_buf = fimc_pending_queue_pop(cap);
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fimc_hw_set_output_addr(fimc, &v_buf->paddr, cap->buf_index);
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v_buf->index = cap->buf_index;
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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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|
dbg("next frame: %d, done frame: %d",
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fimc_hw_get_frame_index(fimc), v_buf->index);
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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
|
* requires the frame embedded data capture.
|
*/
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if (f->fmt->mdataplanes && !list_empty(&cap->active_buf_q)) {
|
unsigned int plane = ffs(f->fmt->mdataplanes) - 1;
|
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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list_for_each_entry(v_buf, &cap->active_buf_q, list) {
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if (v_buf->index != index)
|
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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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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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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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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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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|
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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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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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set_bit(ST_CAPT_PEND, &fimc->state);
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min_bufs = fimc->vid_cap.reqbufs_count > 1 ? 2 : 1;
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if (vid_cap->active_buf_cnt >= min_bufs &&
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!test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) {
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fimc_activate_capture(ctx);
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if (!test_and_set_bit(ST_CAPT_ISP_STREAM, &fimc->state))
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return fimc_pipeline_call(&vid_cap->ve, set_stream, 1);
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}
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return 0;
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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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if (!fimc_capture_active(fimc))
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return;
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fimc_stop_capture(fimc, false);
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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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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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static void buffer_queue(struct vb2_buffer *vb);
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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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clear_bit(ST_CAPT_SUSPENDED, &fimc->state);
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for (i = 0; i < vid_cap->reqbufs_count; i++) {
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if (list_empty(&vid_cap->pending_buf_q))
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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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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;
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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;
|
|
if (*num_planes) {
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if (*num_planes != fmt->memplanes)
|
return -EINVAL;
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for (i = 0; i < *num_planes; i++)
|
if (sizes[i] < (wh * fmt->depth[i]) / 8)
|
return -EINVAL;
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return 0;
|
}
|
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*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))
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sizes[i] = frame->payload[i];
|
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)
|
{
|
struct vb2_queue *vq = vb->vb2_queue;
|
struct fimc_ctx *ctx = vq->drv_priv;
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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_resume_and_get(&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)
|
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)
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{
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struct v4l2_format fmt = {
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.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
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.fmt.pix_mp = {
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.width = FIMC_DEFAULT_WIDTH,
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.height = FIMC_DEFAULT_HEIGHT,
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.pixelformat = V4L2_PIX_FMT_YUYV,
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.field = V4L2_FIELD_NONE,
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.colorspace = V4L2_COLORSPACE_JPEG,
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},
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};
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return __fimc_capture_set_format(fimc, &fmt);
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}
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/* fimc->lock must be already initialized */
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static int fimc_register_capture_device(struct fimc_dev *fimc,
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struct v4l2_device *v4l2_dev)
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{
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struct video_device *vfd = &fimc->vid_cap.ve.vdev;
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struct vb2_queue *q = &fimc->vid_cap.vbq;
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struct fimc_ctx *ctx;
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struct fimc_vid_cap *vid_cap;
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struct fimc_fmt *fmt;
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int ret = -ENOMEM;
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ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
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if (!ctx)
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return -ENOMEM;
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ctx->fimc_dev = fimc;
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ctx->in_path = FIMC_IO_CAMERA;
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ctx->out_path = FIMC_IO_DMA;
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ctx->state = FIMC_CTX_CAP;
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ctx->s_frame.fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0);
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ctx->d_frame.fmt = ctx->s_frame.fmt;
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memset(vfd, 0, sizeof(*vfd));
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snprintf(vfd->name, sizeof(vfd->name), "fimc.%d.capture", fimc->id);
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vfd->fops = &fimc_capture_fops;
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vfd->ioctl_ops = &fimc_capture_ioctl_ops;
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vfd->v4l2_dev = v4l2_dev;
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vfd->minor = -1;
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vfd->release = video_device_release_empty;
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vfd->queue = q;
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vfd->lock = &fimc->lock;
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vfd->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE_MPLANE;
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video_set_drvdata(vfd, fimc);
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vid_cap = &fimc->vid_cap;
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vid_cap->active_buf_cnt = 0;
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vid_cap->reqbufs_count = 0;
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vid_cap->ctx = ctx;
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INIT_LIST_HEAD(&vid_cap->pending_buf_q);
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INIT_LIST_HEAD(&vid_cap->active_buf_q);
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memset(q, 0, sizeof(*q));
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q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
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q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
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q->drv_priv = ctx;
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q->ops = &fimc_capture_qops;
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q->mem_ops = &vb2_dma_contig_memops;
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q->buf_struct_size = sizeof(struct fimc_vid_buffer);
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q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
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q->lock = &fimc->lock;
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q->dev = &fimc->pdev->dev;
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ret = vb2_queue_init(q);
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if (ret)
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goto err_free_ctx;
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/* Default format configuration */
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fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, 0);
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vid_cap->ci_fmt.width = FIMC_DEFAULT_WIDTH;
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vid_cap->ci_fmt.height = FIMC_DEFAULT_HEIGHT;
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vid_cap->ci_fmt.code = fmt->mbus_code;
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ctx->s_frame.width = FIMC_DEFAULT_WIDTH;
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ctx->s_frame.height = FIMC_DEFAULT_HEIGHT;
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ctx->s_frame.fmt = fmt;
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fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_WRITEBACK, 0);
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vid_cap->wb_fmt = vid_cap->ci_fmt;
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vid_cap->wb_fmt.code = fmt->mbus_code;
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vid_cap->vd_pad.flags = MEDIA_PAD_FL_SINK;
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vfd->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER;
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ret = media_entity_pads_init(&vfd->entity, 1, &vid_cap->vd_pad);
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if (ret)
|
goto err_free_ctx;
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ret = fimc_ctrls_create(ctx);
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if (ret)
|
goto err_me_cleanup;
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ret = video_register_device(vfd, VFL_TYPE_VIDEO, -1);
|
if (ret)
|
goto err_ctrl_free;
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|
v4l2_info(v4l2_dev, "Registered %s as /dev/%s\n",
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vfd->name, video_device_node_name(vfd));
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|
vfd->ctrl_handler = &ctx->ctrls.handler;
|
return 0;
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err_ctrl_free:
|
fimc_ctrls_delete(ctx);
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err_me_cleanup:
|
media_entity_cleanup(&vfd->entity);
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err_free_ctx:
|
kfree(ctx);
|
return ret;
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}
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static int fimc_capture_subdev_registered(struct v4l2_subdev *sd)
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{
|
struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
|
int ret;
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|
if (fimc == NULL)
|
return -ENXIO;
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ret = fimc_register_m2m_device(fimc, sd->v4l2_dev);
|
if (ret)
|
return ret;
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|
fimc->vid_cap.ve.pipe = v4l2_get_subdev_hostdata(sd);
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|
ret = fimc_register_capture_device(fimc, sd->v4l2_dev);
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if (ret) {
|
fimc_unregister_m2m_device(fimc);
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fimc->vid_cap.ve.pipe = NULL;
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}
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|
return ret;
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}
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|
static void fimc_capture_subdev_unregistered(struct v4l2_subdev *sd)
|
{
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struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
|
struct video_device *vdev;
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|
if (fimc == NULL)
|
return;
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|
mutex_lock(&fimc->lock);
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|
fimc_unregister_m2m_device(fimc);
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vdev = &fimc->vid_cap.ve.vdev;
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|
if (video_is_registered(vdev)) {
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video_unregister_device(vdev);
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media_entity_cleanup(&vdev->entity);
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fimc_ctrls_delete(fimc->vid_cap.ctx);
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fimc->vid_cap.ve.pipe = NULL;
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}
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kfree(fimc->vid_cap.ctx);
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fimc->vid_cap.ctx = NULL;
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|
mutex_unlock(&fimc->lock);
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}
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static const struct v4l2_subdev_internal_ops fimc_capture_sd_internal_ops = {
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.registered = fimc_capture_subdev_registered,
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.unregistered = fimc_capture_subdev_unregistered,
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};
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int fimc_initialize_capture_subdev(struct fimc_dev *fimc)
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{
|
struct v4l2_subdev *sd = &fimc->vid_cap.subdev;
|
int ret;
|
|
v4l2_subdev_init(sd, &fimc_subdev_ops);
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sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
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snprintf(sd->name, sizeof(sd->name), "FIMC.%d", fimc->id);
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fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_CAM].flags = MEDIA_PAD_FL_SINK;
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fimc->vid_cap.sd_pads[FIMC_SD_PAD_SINK_FIFO].flags = MEDIA_PAD_FL_SINK;
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fimc->vid_cap.sd_pads[FIMC_SD_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
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ret = media_entity_pads_init(&sd->entity, FIMC_SD_PADS_NUM,
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fimc->vid_cap.sd_pads);
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if (ret)
|
return ret;
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|
sd->entity.ops = &fimc_sd_media_ops;
|
sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER;
|
sd->internal_ops = &fimc_capture_sd_internal_ops;
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v4l2_set_subdevdata(sd, fimc);
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return 0;
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}
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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);
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v4l2_set_subdevdata(sd, NULL);
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}
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