// SPDX-License-Identifier: GPL-2.0-only
|
/*
|
* Samsung EXYNOS4x12 FIMC-IS (Imaging Subsystem) driver
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*
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* FIMC-IS ISP video input and video output DMA interface driver
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*
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* Copyright (C) 2013 Samsung Electronics Co., Ltd.
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* Author: Sylwester Nawrocki <s.nawrocki@samsung.com>
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*
|
* The hardware handling code derived from a driver written by
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* Younghwan Joo <yhwan.joo@samsung.com>.
|
*/
|
|
#include <linux/bitops.h>
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#include <linux/device.h>
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#include <linux/delay.h>
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/printk.h>
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#include <linux/pm_runtime.h>
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#include <linux/slab.h>
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#include <linux/videodev2.h>
|
|
#include <media/v4l2-device.h>
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#include <media/v4l2-ioctl.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 <media/drv-intf/exynos-fimc.h>
|
|
#include "common.h"
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#include "media-dev.h"
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#include "fimc-is.h"
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#include "fimc-isp-video.h"
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#include "fimc-is-param.h"
|
|
static int isp_video_capture_queue_setup(struct vb2_queue *vq,
|
unsigned int *num_buffers, unsigned int *num_planes,
|
unsigned int sizes[], struct device *alloc_devs[])
|
{
|
struct fimc_isp *isp = vb2_get_drv_priv(vq);
|
struct v4l2_pix_format_mplane *vid_fmt = &isp->video_capture.pixfmt;
|
const struct fimc_fmt *fmt = isp->video_capture.format;
|
unsigned int wh, i;
|
|
wh = vid_fmt->width * vid_fmt->height;
|
|
if (fmt == NULL)
|
return -EINVAL;
|
|
*num_buffers = clamp_t(u32, *num_buffers, FIMC_ISP_REQ_BUFS_MIN,
|
FIMC_ISP_REQ_BUFS_MAX);
|
if (*num_planes) {
|
if (*num_planes != fmt->memplanes)
|
return -EINVAL;
|
for (i = 0; i < *num_planes; i++)
|
if (sizes[i] < (wh * fmt->depth[i]) / 8)
|
return -EINVAL;
|
return 0;
|
}
|
|
*num_planes = fmt->memplanes;
|
|
for (i = 0; i < fmt->memplanes; i++)
|
sizes[i] = (wh * fmt->depth[i]) / 8;
|
|
return 0;
|
}
|
|
static inline struct param_dma_output *__get_isp_dma2(struct fimc_is *is)
|
{
|
return &__get_curr_is_config(is)->isp.dma2_output;
|
}
|
|
static int isp_video_capture_start_streaming(struct vb2_queue *q,
|
unsigned int count)
|
{
|
struct fimc_isp *isp = vb2_get_drv_priv(q);
|
struct fimc_is *is = fimc_isp_to_is(isp);
|
struct param_dma_output *dma = __get_isp_dma2(is);
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struct fimc_is_video *video = &isp->video_capture;
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int ret;
|
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if (!test_bit(ST_ISP_VID_CAP_BUF_PREP, &isp->state) ||
|
test_bit(ST_ISP_VID_CAP_STREAMING, &isp->state))
|
return 0;
|
|
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dma->cmd = DMA_OUTPUT_COMMAND_ENABLE;
|
dma->notify_dma_done = DMA_OUTPUT_NOTIFY_DMA_DONE_ENABLE;
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dma->buffer_address = is->is_dma_p_region +
|
DMA2_OUTPUT_ADDR_ARRAY_OFFS;
|
dma->buffer_number = video->reqbufs_count;
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dma->dma_out_mask = video->buf_mask;
|
|
isp_dbg(2, &video->ve.vdev,
|
"buf_count: %d, planes: %d, dma addr table: %#x\n",
|
video->buf_count, video->format->memplanes,
|
dma->buffer_address);
|
|
fimc_is_mem_barrier();
|
|
fimc_is_set_param_bit(is, PARAM_ISP_DMA2_OUTPUT);
|
__fimc_is_hw_update_param(is, PARAM_ISP_DMA2_OUTPUT);
|
|
ret = fimc_is_itf_s_param(is, false);
|
if (ret < 0)
|
return ret;
|
|
ret = fimc_pipeline_call(&video->ve, set_stream, 1);
|
if (ret < 0)
|
return ret;
|
|
set_bit(ST_ISP_VID_CAP_STREAMING, &isp->state);
|
return ret;
|
}
|
|
static void isp_video_capture_stop_streaming(struct vb2_queue *q)
|
{
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struct fimc_isp *isp = vb2_get_drv_priv(q);
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struct fimc_is *is = fimc_isp_to_is(isp);
|
struct param_dma_output *dma = __get_isp_dma2(is);
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int ret;
|
|
ret = fimc_pipeline_call(&isp->video_capture.ve, set_stream, 0);
|
if (ret < 0)
|
return;
|
|
dma->cmd = DMA_OUTPUT_COMMAND_DISABLE;
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dma->notify_dma_done = DMA_OUTPUT_NOTIFY_DMA_DONE_DISABLE;
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dma->buffer_number = 0;
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dma->buffer_address = 0;
|
dma->dma_out_mask = 0;
|
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fimc_is_set_param_bit(is, PARAM_ISP_DMA2_OUTPUT);
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__fimc_is_hw_update_param(is, PARAM_ISP_DMA2_OUTPUT);
|
|
ret = fimc_is_itf_s_param(is, false);
|
if (ret < 0)
|
dev_warn(&is->pdev->dev, "%s: DMA stop failed\n", __func__);
|
|
fimc_is_hw_set_isp_buf_mask(is, 0);
|
|
clear_bit(ST_ISP_VID_CAP_BUF_PREP, &isp->state);
|
clear_bit(ST_ISP_VID_CAP_STREAMING, &isp->state);
|
|
isp->video_capture.buf_count = 0;
|
}
|
|
static int isp_video_capture_buffer_prepare(struct vb2_buffer *vb)
|
{
|
struct fimc_isp *isp = vb2_get_drv_priv(vb->vb2_queue);
|
struct fimc_is_video *video = &isp->video_capture;
|
int i;
|
|
if (video->format == NULL)
|
return -EINVAL;
|
|
for (i = 0; i < video->format->memplanes; i++) {
|
unsigned long size = video->pixfmt.plane_fmt[i].sizeimage;
|
|
if (vb2_plane_size(vb, i) < size) {
|
v4l2_err(&video->ve.vdev,
|
"User buffer too small (%ld < %ld)\n",
|
vb2_plane_size(vb, i), size);
|
return -EINVAL;
|
}
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vb2_set_plane_payload(vb, i, size);
|
}
|
|
/* Check if we get one of the already known buffers. */
|
if (test_bit(ST_ISP_VID_CAP_BUF_PREP, &isp->state)) {
|
dma_addr_t dma_addr = vb2_dma_contig_plane_dma_addr(vb, 0);
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int i;
|
|
for (i = 0; i < video->buf_count; i++)
|
if (video->buffers[i]->dma_addr[0] == dma_addr)
|
return 0;
|
return -ENXIO;
|
}
|
|
return 0;
|
}
|
|
static void isp_video_capture_buffer_queue(struct vb2_buffer *vb)
|
{
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
|
struct fimc_isp *isp = vb2_get_drv_priv(vb->vb2_queue);
|
struct fimc_is_video *video = &isp->video_capture;
|
struct fimc_is *is = fimc_isp_to_is(isp);
|
struct isp_video_buf *ivb = to_isp_video_buf(vbuf);
|
unsigned long flags;
|
unsigned int i;
|
|
if (test_bit(ST_ISP_VID_CAP_BUF_PREP, &isp->state)) {
|
spin_lock_irqsave(&is->slock, flags);
|
video->buf_mask |= BIT(ivb->index);
|
spin_unlock_irqrestore(&is->slock, flags);
|
} else {
|
unsigned int num_planes = video->format->memplanes;
|
|
ivb->index = video->buf_count;
|
video->buffers[ivb->index] = ivb;
|
|
for (i = 0; i < num_planes; i++) {
|
int buf_index = ivb->index * num_planes + i;
|
|
ivb->dma_addr[i] = vb2_dma_contig_plane_dma_addr(vb, i);
|
is->is_p_region->shared[32 + buf_index] =
|
ivb->dma_addr[i];
|
|
isp_dbg(2, &video->ve.vdev,
|
"dma_buf %d (%d/%d/%d) addr: %pad\n",
|
buf_index, ivb->index, i, vb->index,
|
&ivb->dma_addr[i]);
|
}
|
|
if (++video->buf_count < video->reqbufs_count)
|
return;
|
|
video->buf_mask = (1UL << video->buf_count) - 1;
|
set_bit(ST_ISP_VID_CAP_BUF_PREP, &isp->state);
|
}
|
|
if (!test_bit(ST_ISP_VID_CAP_STREAMING, &isp->state))
|
isp_video_capture_start_streaming(vb->vb2_queue, 0);
|
}
|
|
/*
|
* FIMC-IS ISP input and output DMA interface interrupt handler.
|
* Locking: called with is->slock spinlock held.
|
*/
|
void fimc_isp_video_irq_handler(struct fimc_is *is)
|
{
|
struct fimc_is_video *video = &is->isp.video_capture;
|
struct vb2_v4l2_buffer *vbuf;
|
int buf_index;
|
|
/* TODO: Ensure the DMA is really stopped in stop_streaming callback */
|
if (!test_bit(ST_ISP_VID_CAP_STREAMING, &is->isp.state))
|
return;
|
|
buf_index = (is->i2h_cmd.args[1] - 1) % video->buf_count;
|
vbuf = &video->buffers[buf_index]->vb;
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|
vbuf->vb2_buf.timestamp = ktime_get_ns();
|
vb2_buffer_done(&vbuf->vb2_buf, VB2_BUF_STATE_DONE);
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|
video->buf_mask &= ~BIT(buf_index);
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fimc_is_hw_set_isp_buf_mask(is, video->buf_mask);
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}
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static const struct vb2_ops isp_video_capture_qops = {
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.queue_setup = isp_video_capture_queue_setup,
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.buf_prepare = isp_video_capture_buffer_prepare,
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.buf_queue = isp_video_capture_buffer_queue,
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.wait_prepare = vb2_ops_wait_prepare,
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.wait_finish = vb2_ops_wait_finish,
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.start_streaming = isp_video_capture_start_streaming,
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.stop_streaming = isp_video_capture_stop_streaming,
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};
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static int isp_video_open(struct file *file)
|
{
|
struct fimc_isp *isp = video_drvdata(file);
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struct exynos_video_entity *ve = &isp->video_capture.ve;
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struct media_entity *me = &ve->vdev.entity;
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int ret;
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|
if (mutex_lock_interruptible(&isp->video_lock))
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return -ERESTARTSYS;
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|
ret = v4l2_fh_open(file);
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if (ret < 0)
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goto unlock;
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|
ret = pm_runtime_resume_and_get(&isp->pdev->dev);
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if (ret < 0)
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goto rel_fh;
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if (v4l2_fh_is_singular_file(file)) {
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mutex_lock(&me->graph_obj.mdev->graph_mutex);
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ret = fimc_pipeline_call(ve, open, me, true);
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|
/* Mark the video pipeline as in use. */
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if (ret == 0)
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me->use_count++;
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|
mutex_unlock(&me->graph_obj.mdev->graph_mutex);
|
}
|
if (!ret)
|
goto unlock;
|
rel_fh:
|
v4l2_fh_release(file);
|
unlock:
|
mutex_unlock(&isp->video_lock);
|
return ret;
|
}
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static int isp_video_release(struct file *file)
|
{
|
struct fimc_isp *isp = video_drvdata(file);
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struct fimc_is_video *ivc = &isp->video_capture;
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struct media_entity *entity = &ivc->ve.vdev.entity;
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struct media_device *mdev = entity->graph_obj.mdev;
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bool is_singular_file;
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|
mutex_lock(&isp->video_lock);
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|
is_singular_file = v4l2_fh_is_singular_file(file);
|
|
if (is_singular_file && ivc->streaming) {
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media_pipeline_stop(entity);
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ivc->streaming = 0;
|
}
|
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_vb2_fop_release(file, NULL);
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|
if (is_singular_file) {
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fimc_pipeline_call(&ivc->ve, close);
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|
mutex_lock(&mdev->graph_mutex);
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entity->use_count--;
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mutex_unlock(&mdev->graph_mutex);
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}
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pm_runtime_put(&isp->pdev->dev);
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mutex_unlock(&isp->video_lock);
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|
return 0;
|
}
|
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static const struct v4l2_file_operations isp_video_fops = {
|
.owner = THIS_MODULE,
|
.open = isp_video_open,
|
.release = isp_video_release,
|
.poll = vb2_fop_poll,
|
.unlocked_ioctl = video_ioctl2,
|
.mmap = vb2_fop_mmap,
|
};
|
|
/*
|
* Video node ioctl operations
|
*/
|
static int isp_video_querycap(struct file *file, void *priv,
|
struct v4l2_capability *cap)
|
{
|
struct fimc_isp *isp = video_drvdata(file);
|
|
__fimc_vidioc_querycap(&isp->pdev->dev, cap);
|
return 0;
|
}
|
|
static int isp_video_enum_fmt(struct file *file, void *priv,
|
struct v4l2_fmtdesc *f)
|
{
|
const struct fimc_fmt *fmt;
|
|
if (f->index >= FIMC_ISP_NUM_FORMATS)
|
return -EINVAL;
|
|
fmt = fimc_isp_find_format(NULL, NULL, f->index);
|
if (WARN_ON(fmt == NULL))
|
return -EINVAL;
|
|
f->pixelformat = fmt->fourcc;
|
|
return 0;
|
}
|
|
static int isp_video_g_fmt_mplane(struct file *file, void *fh,
|
struct v4l2_format *f)
|
{
|
struct fimc_isp *isp = video_drvdata(file);
|
|
f->fmt.pix_mp = isp->video_capture.pixfmt;
|
return 0;
|
}
|
|
static void __isp_video_try_fmt(struct fimc_isp *isp,
|
struct v4l2_pix_format_mplane *pixm,
|
const struct fimc_fmt **fmt)
|
{
|
const struct fimc_fmt *__fmt;
|
|
__fmt = fimc_isp_find_format(&pixm->pixelformat, NULL, 2);
|
|
if (fmt)
|
*fmt = __fmt;
|
|
pixm->colorspace = V4L2_COLORSPACE_SRGB;
|
pixm->field = V4L2_FIELD_NONE;
|
pixm->num_planes = __fmt->memplanes;
|
pixm->pixelformat = __fmt->fourcc;
|
/*
|
* TODO: double check with the docmentation these width/height
|
* constraints are correct.
|
*/
|
v4l_bound_align_image(&pixm->width, FIMC_ISP_SOURCE_WIDTH_MIN,
|
FIMC_ISP_SOURCE_WIDTH_MAX, 3,
|
&pixm->height, FIMC_ISP_SOURCE_HEIGHT_MIN,
|
FIMC_ISP_SOURCE_HEIGHT_MAX, 0, 0);
|
}
|
|
static int isp_video_try_fmt_mplane(struct file *file, void *fh,
|
struct v4l2_format *f)
|
{
|
struct fimc_isp *isp = video_drvdata(file);
|
|
__isp_video_try_fmt(isp, &f->fmt.pix_mp, NULL);
|
return 0;
|
}
|
|
static int isp_video_s_fmt_mplane(struct file *file, void *priv,
|
struct v4l2_format *f)
|
{
|
struct fimc_isp *isp = video_drvdata(file);
|
struct fimc_is *is = fimc_isp_to_is(isp);
|
struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp;
|
const struct fimc_fmt *ifmt = NULL;
|
struct param_dma_output *dma = __get_isp_dma2(is);
|
|
__isp_video_try_fmt(isp, pixm, &ifmt);
|
|
if (WARN_ON(ifmt == NULL))
|
return -EINVAL;
|
|
dma->format = DMA_OUTPUT_FORMAT_BAYER;
|
dma->order = DMA_OUTPUT_ORDER_GB_BG;
|
dma->plane = ifmt->memplanes;
|
dma->bitwidth = ifmt->depth[0];
|
dma->width = pixm->width;
|
dma->height = pixm->height;
|
|
fimc_is_mem_barrier();
|
|
isp->video_capture.format = ifmt;
|
isp->video_capture.pixfmt = *pixm;
|
|
return 0;
|
}
|
|
/*
|
* Check for source/sink format differences at each link.
|
* Return 0 if the formats match or -EPIPE otherwise.
|
*/
|
static int isp_video_pipeline_validate(struct fimc_isp *isp)
|
{
|
struct v4l2_subdev *sd = &isp->subdev;
|
struct v4l2_subdev_format sink_fmt, src_fmt;
|
struct media_pad *pad;
|
int ret;
|
|
while (1) {
|
/* Retrieve format at the sink pad */
|
pad = &sd->entity.pads[0];
|
if (!(pad->flags & MEDIA_PAD_FL_SINK))
|
break;
|
sink_fmt.pad = pad->index;
|
sink_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
|
ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sink_fmt);
|
if (ret < 0 && ret != -ENOIOCTLCMD)
|
return -EPIPE;
|
|
/* Retrieve format at the source pad */
|
pad = media_entity_remote_pad(pad);
|
if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
|
break;
|
|
sd = media_entity_to_v4l2_subdev(pad->entity);
|
src_fmt.pad = pad->index;
|
src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
|
ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt);
|
if (ret < 0 && ret != -ENOIOCTLCMD)
|
return -EPIPE;
|
|
if (src_fmt.format.width != sink_fmt.format.width ||
|
src_fmt.format.height != sink_fmt.format.height ||
|
src_fmt.format.code != sink_fmt.format.code)
|
return -EPIPE;
|
}
|
|
return 0;
|
}
|
|
static int isp_video_streamon(struct file *file, void *priv,
|
enum v4l2_buf_type type)
|
{
|
struct fimc_isp *isp = video_drvdata(file);
|
struct exynos_video_entity *ve = &isp->video_capture.ve;
|
struct media_entity *me = &ve->vdev.entity;
|
int ret;
|
|
ret = media_pipeline_start(me, &ve->pipe->mp);
|
if (ret < 0)
|
return ret;
|
|
ret = isp_video_pipeline_validate(isp);
|
if (ret < 0)
|
goto p_stop;
|
|
ret = vb2_ioctl_streamon(file, priv, type);
|
if (ret < 0)
|
goto p_stop;
|
|
isp->video_capture.streaming = 1;
|
return 0;
|
p_stop:
|
media_pipeline_stop(me);
|
return ret;
|
}
|
|
static int isp_video_streamoff(struct file *file, void *priv,
|
enum v4l2_buf_type type)
|
{
|
struct fimc_isp *isp = video_drvdata(file);
|
struct fimc_is_video *video = &isp->video_capture;
|
int ret;
|
|
ret = vb2_ioctl_streamoff(file, priv, type);
|
if (ret < 0)
|
return ret;
|
|
media_pipeline_stop(&video->ve.vdev.entity);
|
video->streaming = 0;
|
return 0;
|
}
|
|
static int isp_video_reqbufs(struct file *file, void *priv,
|
struct v4l2_requestbuffers *rb)
|
{
|
struct fimc_isp *isp = video_drvdata(file);
|
int ret;
|
|
ret = vb2_ioctl_reqbufs(file, priv, rb);
|
if (ret < 0)
|
return ret;
|
|
if (rb->count && rb->count < FIMC_ISP_REQ_BUFS_MIN) {
|
rb->count = 0;
|
vb2_ioctl_reqbufs(file, priv, rb);
|
ret = -ENOMEM;
|
}
|
|
isp->video_capture.reqbufs_count = rb->count;
|
return ret;
|
}
|
|
static const struct v4l2_ioctl_ops isp_video_ioctl_ops = {
|
.vidioc_querycap = isp_video_querycap,
|
.vidioc_enum_fmt_vid_cap = isp_video_enum_fmt,
|
.vidioc_try_fmt_vid_cap_mplane = isp_video_try_fmt_mplane,
|
.vidioc_s_fmt_vid_cap_mplane = isp_video_s_fmt_mplane,
|
.vidioc_g_fmt_vid_cap_mplane = isp_video_g_fmt_mplane,
|
.vidioc_reqbufs = isp_video_reqbufs,
|
.vidioc_querybuf = vb2_ioctl_querybuf,
|
.vidioc_prepare_buf = vb2_ioctl_prepare_buf,
|
.vidioc_create_bufs = vb2_ioctl_create_bufs,
|
.vidioc_qbuf = vb2_ioctl_qbuf,
|
.vidioc_dqbuf = vb2_ioctl_dqbuf,
|
.vidioc_streamon = isp_video_streamon,
|
.vidioc_streamoff = isp_video_streamoff,
|
};
|
|
int fimc_isp_video_device_register(struct fimc_isp *isp,
|
struct v4l2_device *v4l2_dev,
|
enum v4l2_buf_type type)
|
{
|
struct vb2_queue *q = &isp->video_capture.vb_queue;
|
struct fimc_is_video *iv;
|
struct video_device *vdev;
|
int ret;
|
|
if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
|
iv = &isp->video_capture;
|
else
|
return -ENOSYS;
|
|
mutex_init(&isp->video_lock);
|
INIT_LIST_HEAD(&iv->pending_buf_q);
|
INIT_LIST_HEAD(&iv->active_buf_q);
|
iv->format = fimc_isp_find_format(NULL, NULL, 0);
|
iv->pixfmt.width = IS_DEFAULT_WIDTH;
|
iv->pixfmt.height = IS_DEFAULT_HEIGHT;
|
iv->pixfmt.pixelformat = iv->format->fourcc;
|
iv->pixfmt.colorspace = V4L2_COLORSPACE_SRGB;
|
iv->reqbufs_count = 0;
|
|
memset(q, 0, sizeof(*q));
|
q->type = type;
|
q->io_modes = VB2_MMAP | VB2_USERPTR;
|
q->ops = &isp_video_capture_qops;
|
q->mem_ops = &vb2_dma_contig_memops;
|
q->buf_struct_size = sizeof(struct isp_video_buf);
|
q->drv_priv = isp;
|
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
|
q->lock = &isp->video_lock;
|
q->dev = &isp->pdev->dev;
|
|
ret = vb2_queue_init(q);
|
if (ret < 0)
|
return ret;
|
|
vdev = &iv->ve.vdev;
|
memset(vdev, 0, sizeof(*vdev));
|
strscpy(vdev->name, "fimc-is-isp.capture", sizeof(vdev->name));
|
vdev->queue = q;
|
vdev->fops = &isp_video_fops;
|
vdev->ioctl_ops = &isp_video_ioctl_ops;
|
vdev->v4l2_dev = v4l2_dev;
|
vdev->minor = -1;
|
vdev->release = video_device_release_empty;
|
vdev->lock = &isp->video_lock;
|
vdev->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE_MPLANE;
|
|
iv->pad.flags = MEDIA_PAD_FL_SINK;
|
ret = media_entity_pads_init(&vdev->entity, 1, &iv->pad);
|
if (ret < 0)
|
return ret;
|
|
video_set_drvdata(vdev, isp);
|
|
ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
|
if (ret < 0) {
|
media_entity_cleanup(&vdev->entity);
|
return ret;
|
}
|
|
v4l2_info(v4l2_dev, "Registered %s as /dev/%s\n",
|
vdev->name, video_device_node_name(vdev));
|
|
return 0;
|
}
|
|
void fimc_isp_video_device_unregister(struct fimc_isp *isp,
|
enum v4l2_buf_type type)
|
{
|
struct exynos_video_entity *ve;
|
|
if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
|
ve = &isp->video_capture.ve;
|
else
|
return;
|
|
mutex_lock(&isp->video_lock);
|
|
if (video_is_registered(&ve->vdev)) {
|
video_unregister_device(&ve->vdev);
|
media_entity_cleanup(&ve->vdev.entity);
|
ve->pipe = NULL;
|
}
|
|
mutex_unlock(&isp->video_lock);
|
}
|
