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|
// SPDX-License-Identifier: GPL-2.0
/*
* Support for Medifield PNW Camera Imaging ISP subsystem.
*
* Copyright (c) 2010 Intel Corporation. All Rights Reserved.
*
* Copyright (c) 2010 Silicon Hive www.siliconhive.com.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*
*/
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <media/v4l2-ioctl.h>
#include <media/videobuf2-vmalloc.h>
#include "atomisp_cmd.h"
#include "atomisp_common.h"
#include "atomisp_fops.h"
#include "atomisp_internal.h"
#include "atomisp_ioctl.h"
#include "atomisp_compat.h"
#include "atomisp_subdev.h"
#include "atomisp_v4l2.h"
#include "atomisp-regs.h"
#include "hmm/hmm.h"
#include "ia_css_frame.h"
#include "type_support.h"
#include "device_access/device_access.h"
/*
* Videobuf2 ops
*/
static int atomisp_queue_setup(struct vb2_queue *vq,
unsigned int *nbuffers, unsigned int *nplanes,
unsigned int sizes[], struct device *alloc_devs[])
{
struct atomisp_video_pipe *pipe = container_of(vq, struct atomisp_video_pipe, vb_queue);
int ret;
mutex_lock(&pipe->asd->isp->mutex); /* for get_css_frame_info() / set_fmt() */
/*
* When VIDIOC_S_FMT has not been called before VIDIOC_REQBUFS, then
* this will fail. Call atomisp_set_fmt() ourselves and try again.
*/
ret = atomisp_get_css_frame_info(pipe->asd, &pipe->frame_info);
if (ret) {
struct v4l2_format f = {
.fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420,
.fmt.pix.width = 10000,
.fmt.pix.height = 10000,
};
ret = atomisp_set_fmt(&pipe->vdev, &f);
if (ret)
goto out;
ret = atomisp_get_css_frame_info(pipe->asd, &pipe->frame_info);
if (ret)
goto out;
}
atomisp_alloc_css_stat_bufs(pipe->asd, ATOMISP_INPUT_STREAM_GENERAL);
*nplanes = 1;
sizes[0] = PAGE_ALIGN(pipe->pix.sizeimage);
out:
mutex_unlock(&pipe->asd->isp->mutex);
return ret;
}
static int atomisp_buf_init(struct vb2_buffer *vb)
{
struct atomisp_video_pipe *pipe = vb_to_pipe(vb);
struct ia_css_frame *frame = vb_to_frame(vb);
int ret;
ret = ia_css_frame_init_from_info(frame, &pipe->frame_info);
if (ret)
return ret;
if (frame->data_bytes > vb2_plane_size(vb, 0)) {
dev_err(pipe->asd->isp->dev, "Internal error frame.data_bytes(%u) > vb.length(%lu)\n",
frame->data_bytes, vb2_plane_size(vb, 0));
return -EIO;
}
frame->data = hmm_create_from_vmalloc_buf(vb2_plane_size(vb, 0),
vb2_plane_vaddr(vb, 0));
if (frame->data == mmgr_NULL)
return -ENOMEM;
return 0;
}
static int atomisp_q_one_metadata_buffer(struct atomisp_sub_device *asd,
enum atomisp_input_stream_id stream_id,
enum ia_css_pipe_id css_pipe_id)
{
struct atomisp_metadata_buf *metadata_buf;
enum atomisp_metadata_type md_type = ATOMISP_MAIN_METADATA;
struct list_head *metadata_list;
if (asd->metadata_bufs_in_css[stream_id][css_pipe_id] >=
ATOMISP_CSS_Q_DEPTH)
return 0; /* we have reached CSS queue depth */
if (!list_empty(&asd->metadata[md_type])) {
metadata_list = &asd->metadata[md_type];
} else if (!list_empty(&asd->metadata_ready[md_type])) {
metadata_list = &asd->metadata_ready[md_type];
} else {
dev_warn(asd->isp->dev, "%s: No metadata buffers available for type %d!\n",
__func__, md_type);
return -EINVAL;
}
metadata_buf = list_entry(metadata_list->next,
struct atomisp_metadata_buf, list);
list_del_init(&metadata_buf->list);
if (atomisp_q_metadata_buffer_to_css(asd, metadata_buf,
stream_id, css_pipe_id)) {
list_add(&metadata_buf->list, metadata_list);
return -EINVAL;
} else {
list_add_tail(&metadata_buf->list,
&asd->metadata_in_css[md_type]);
}
asd->metadata_bufs_in_css[stream_id][css_pipe_id]++;
return 0;
}
static int atomisp_q_one_s3a_buffer(struct atomisp_sub_device *asd,
enum atomisp_input_stream_id stream_id,
enum ia_css_pipe_id css_pipe_id)
{
struct atomisp_s3a_buf *s3a_buf;
struct list_head *s3a_list;
unsigned int exp_id;
if (asd->s3a_bufs_in_css[css_pipe_id] >= ATOMISP_CSS_Q_DEPTH)
return 0; /* we have reached CSS queue depth */
if (!list_empty(&asd->s3a_stats)) {
s3a_list = &asd->s3a_stats;
} else if (!list_empty(&asd->s3a_stats_ready)) {
s3a_list = &asd->s3a_stats_ready;
} else {
dev_warn(asd->isp->dev, "%s: No s3a buffers available!\n",
__func__);
return -EINVAL;
}
s3a_buf = list_entry(s3a_list->next, struct atomisp_s3a_buf, list);
list_del_init(&s3a_buf->list);
exp_id = s3a_buf->s3a_data->exp_id;
hmm_flush_vmap(s3a_buf->s3a_data->data_ptr);
if (atomisp_q_s3a_buffer_to_css(asd, s3a_buf,
stream_id, css_pipe_id)) {
/* got from head, so return back to the head */
list_add(&s3a_buf->list, s3a_list);
return -EINVAL;
} else {
list_add_tail(&s3a_buf->list, &asd->s3a_stats_in_css);
if (s3a_list == &asd->s3a_stats_ready)
dev_dbg(asd->isp->dev, "drop one s3a stat with exp_id %d\n", exp_id);
}
asd->s3a_bufs_in_css[css_pipe_id]++;
return 0;
}
static int atomisp_q_one_dis_buffer(struct atomisp_sub_device *asd,
enum atomisp_input_stream_id stream_id,
enum ia_css_pipe_id css_pipe_id)
{
struct atomisp_dis_buf *dis_buf;
unsigned long irqflags;
if (asd->dis_bufs_in_css >= ATOMISP_CSS_Q_DEPTH)
return 0; /* we have reached CSS queue depth */
spin_lock_irqsave(&asd->dis_stats_lock, irqflags);
if (list_empty(&asd->dis_stats)) {
spin_unlock_irqrestore(&asd->dis_stats_lock, irqflags);
dev_warn(asd->isp->dev, "%s: No dis buffers available!\n",
__func__);
return -EINVAL;
}
dis_buf = list_entry(asd->dis_stats.prev,
struct atomisp_dis_buf, list);
list_del_init(&dis_buf->list);
spin_unlock_irqrestore(&asd->dis_stats_lock, irqflags);
hmm_flush_vmap(dis_buf->dis_data->data_ptr);
if (atomisp_q_dis_buffer_to_css(asd, dis_buf,
stream_id, css_pipe_id)) {
spin_lock_irqsave(&asd->dis_stats_lock, irqflags);
/* got from tail, so return back to the tail */
list_add_tail(&dis_buf->list, &asd->dis_stats);
spin_unlock_irqrestore(&asd->dis_stats_lock, irqflags);
return -EINVAL;
} else {
spin_lock_irqsave(&asd->dis_stats_lock, irqflags);
list_add_tail(&dis_buf->list, &asd->dis_stats_in_css);
spin_unlock_irqrestore(&asd->dis_stats_lock, irqflags);
}
asd->dis_bufs_in_css++;
return 0;
}
static int atomisp_q_video_buffers_to_css(struct atomisp_sub_device *asd,
struct atomisp_video_pipe *pipe,
enum atomisp_input_stream_id stream_id,
enum ia_css_buffer_type css_buf_type,
enum ia_css_pipe_id css_pipe_id)
{
struct atomisp_css_params_with_list *param;
struct ia_css_dvs_grid_info *dvs_grid =
atomisp_css_get_dvs_grid_info(&asd->params.curr_grid_info);
unsigned long irqflags;
int space, err = 0;
lockdep_assert_held(&asd->isp->mutex);
if (WARN_ON(css_pipe_id >= IA_CSS_PIPE_ID_NUM))
return -EINVAL;
if (pipe->stopping)
return -EINVAL;
space = ATOMISP_CSS_Q_DEPTH - atomisp_buffers_in_css(pipe);
while (space--) {
struct ia_css_frame *frame;
spin_lock_irqsave(&pipe->irq_lock, irqflags);
frame = list_first_entry_or_null(&pipe->activeq, struct ia_css_frame, queue);
if (frame)
list_move_tail(&frame->queue, &pipe->buffers_in_css);
spin_unlock_irqrestore(&pipe->irq_lock, irqflags);
if (!frame)
return -EINVAL;
/*
* If there is a per_frame setting to apply on the buffer,
* do it before buffer en-queueing.
*/
param = pipe->frame_params[frame->vb.vb2_buf.index];
if (param) {
atomisp_makeup_css_parameters(asd,
&asd->params.css_param.update_flag,
¶m->params);
atomisp_apply_css_parameters(asd, ¶m->params);
if (param->params.update_flag.dz_config &&
asd->run_mode->val != ATOMISP_RUN_MODE_VIDEO) {
err = atomisp_calculate_real_zoom_region(asd,
¶m->params.dz_config, css_pipe_id);
if (!err)
asd->params.config.dz_config = ¶m->params.dz_config;
}
atomisp_css_set_isp_config_applied_frame(asd, frame);
atomisp_css_update_isp_params_on_pipe(asd,
asd->stream_env[stream_id].pipes[css_pipe_id]);
asd->params.dvs_6axis = (struct ia_css_dvs_6axis_config *)
param->params.dvs_6axis;
/*
* WORKAROUND:
* Because the camera halv3 can't ensure to set zoom
* region to per_frame setting and global setting at
* same time and only set zoom region to pre_frame
* setting now.so when the pre_frame setting include
* zoom region,I will set it to global setting.
*/
if (param->params.update_flag.dz_config &&
asd->run_mode->val != ATOMISP_RUN_MODE_VIDEO
&& !err) {
memcpy(&asd->params.css_param.dz_config,
¶m->params.dz_config,
sizeof(struct ia_css_dz_config));
asd->params.css_param.update_flag.dz_config =
(struct atomisp_dz_config *)
&asd->params.css_param.dz_config;
asd->params.css_update_params_needed = true;
}
pipe->frame_params[frame->vb.vb2_buf.index] = NULL;
}
/* Enqueue buffer */
err = atomisp_q_video_buffer_to_css(asd, frame, stream_id,
css_buf_type, css_pipe_id);
if (err) {
spin_lock_irqsave(&pipe->irq_lock, irqflags);
list_move_tail(&frame->queue, &pipe->activeq);
spin_unlock_irqrestore(&pipe->irq_lock, irqflags);
dev_err(asd->isp->dev, "%s, css q fails: %d\n",
__func__, err);
return -EINVAL;
}
/* enqueue 3A/DIS/metadata buffers */
if (asd->params.curr_grid_info.s3a_grid.enable &&
css_pipe_id == asd->params.s3a_enabled_pipe &&
css_buf_type == IA_CSS_BUFFER_TYPE_OUTPUT_FRAME)
atomisp_q_one_s3a_buffer(asd, stream_id,
css_pipe_id);
if (asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream_info.
metadata_info.size &&
css_buf_type == IA_CSS_BUFFER_TYPE_OUTPUT_FRAME)
atomisp_q_one_metadata_buffer(asd, stream_id,
css_pipe_id);
if (dvs_grid && dvs_grid->enable &&
css_pipe_id == IA_CSS_PIPE_ID_VIDEO &&
css_buf_type == IA_CSS_BUFFER_TYPE_OUTPUT_FRAME)
atomisp_q_one_dis_buffer(asd, stream_id,
css_pipe_id);
}
return 0;
}
/* queue all available buffers to css */
int atomisp_qbuffers_to_css(struct atomisp_sub_device *asd)
{
enum ia_css_pipe_id pipe_id;
if (asd->copy_mode) {
pipe_id = IA_CSS_PIPE_ID_COPY;
} else if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_SCALER) {
pipe_id = IA_CSS_PIPE_ID_VIDEO;
} else if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_LOWLAT) {
pipe_id = IA_CSS_PIPE_ID_CAPTURE;
} else if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO) {
pipe_id = IA_CSS_PIPE_ID_VIDEO;
} else if (asd->run_mode->val == ATOMISP_RUN_MODE_PREVIEW) {
pipe_id = IA_CSS_PIPE_ID_PREVIEW;
} else {
/* ATOMISP_RUN_MODE_STILL_CAPTURE */
pipe_id = IA_CSS_PIPE_ID_CAPTURE;
}
atomisp_q_video_buffers_to_css(asd, &asd->video_out,
ATOMISP_INPUT_STREAM_GENERAL,
IA_CSS_BUFFER_TYPE_OUTPUT_FRAME, pipe_id);
return 0;
}
static void atomisp_buf_queue(struct vb2_buffer *vb)
{
struct atomisp_video_pipe *pipe = vb_to_pipe(vb);
struct ia_css_frame *frame = vb_to_frame(vb);
struct atomisp_sub_device *asd = pipe->asd;
unsigned long irqflags;
int ret;
mutex_lock(&asd->isp->mutex);
ret = atomisp_pipe_check(pipe, false);
if (ret || pipe->stopping) {
spin_lock_irqsave(&pipe->irq_lock, irqflags);
atomisp_buffer_done(frame, VB2_BUF_STATE_ERROR);
spin_unlock_irqrestore(&pipe->irq_lock, irqflags);
goto out_unlock;
}
/* FIXME this ugliness comes from the original atomisp buffer handling */
if (!(vb->skip_cache_sync_on_finish && vb->skip_cache_sync_on_prepare))
wbinvd();
pipe->frame_params[vb->index] = NULL;
spin_lock_irqsave(&pipe->irq_lock, irqflags);
/*
* when a frame buffer meets following conditions, it should be put into
* the waiting list:
* 1. It is not a main output frame, and it has a per-frame parameter
* to go with it.
* 2. It is not a main output frame, and the waiting buffer list is not
* empty, to keep the FIFO sequence of frame buffer processing, it
* is put to waiting list until previous per-frame parameter buffers
* get enqueued.
*/
if (pipe->frame_request_config_id[vb->index] ||
!list_empty(&pipe->buffers_waiting_for_param))
list_add_tail(&frame->queue, &pipe->buffers_waiting_for_param);
else
list_add_tail(&frame->queue, &pipe->activeq);
spin_unlock_irqrestore(&pipe->irq_lock, irqflags);
/* TODO: do this better, not best way to queue to css */
if (asd->streaming) {
if (!list_empty(&pipe->buffers_waiting_for_param))
atomisp_handle_parameter_and_buffer(pipe);
else
atomisp_qbuffers_to_css(asd);
}
out_unlock:
mutex_unlock(&asd->isp->mutex);
}
static void atomisp_buf_cleanup(struct vb2_buffer *vb)
{
struct atomisp_video_pipe *pipe = vb_to_pipe(vb);
struct ia_css_frame *frame = vb_to_frame(vb);
int index = frame->vb.vb2_buf.index;
pipe->frame_request_config_id[index] = 0;
pipe->frame_params[index] = NULL;
hmm_free(frame->data);
}
const struct vb2_ops atomisp_vb2_ops = {
.queue_setup = atomisp_queue_setup,
.buf_init = atomisp_buf_init,
.buf_cleanup = atomisp_buf_cleanup,
.buf_queue = atomisp_buf_queue,
.start_streaming = atomisp_start_streaming,
.stop_streaming = atomisp_stop_streaming,
};
static void atomisp_dev_init_struct(struct atomisp_device *isp)
{
isp->isp_fatal_error = false;
/*
* For Merrifield, frequency is scalable.
* After boot-up, the default frequency is 200MHz.
*/
isp->running_freq = ISP_FREQ_200MHZ;
}
static void atomisp_subdev_init_struct(struct atomisp_sub_device *asd)
{
memset(&asd->params.css_param, 0, sizeof(asd->params.css_param));
asd->params.color_effect = V4L2_COLORFX_NONE;
asd->params.bad_pixel_en = true;
asd->params.gdc_cac_en = false;
asd->params.video_dis_en = false;
asd->params.sc_en = false;
asd->params.fpn_en = false;
asd->params.xnr_en = false;
asd->params.false_color = 0;
asd->params.yuv_ds_en = 0;
/* s3a grid not enabled for any pipe */
asd->params.s3a_enabled_pipe = IA_CSS_PIPE_ID_NUM;
asd->copy_mode = false;
asd->stream_prepared = false;
asd->high_speed_mode = false;
asd->sensor_array_res.height = 0;
asd->sensor_array_res.width = 0;
atomisp_css_init_struct(asd);
}
/*
* file operation functions
*/
static int atomisp_open(struct file *file)
{
struct video_device *vdev = video_devdata(file);
struct atomisp_device *isp = video_get_drvdata(vdev);
struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
struct atomisp_sub_device *asd = pipe->asd;
int ret;
dev_dbg(isp->dev, "open device %s\n", vdev->name);
ret = v4l2_fh_open(file);
if (ret)
return ret;
mutex_lock(&isp->mutex);
if (!isp->input_cnt) {
dev_err(isp->dev, "no camera attached\n");
ret = -EINVAL;
goto error;
}
/*
* atomisp does not allow multiple open
*/
if (pipe->users) {
dev_dbg(isp->dev, "video node already opened\n");
ret = -EBUSY;
goto error;
}
/* runtime power management, turn on ISP */
ret = pm_runtime_resume_and_get(vdev->v4l2_dev->dev);
if (ret < 0) {
dev_err(isp->dev, "Failed to power on device\n");
goto error;
}
atomisp_dev_init_struct(isp);
atomisp_subdev_init_struct(asd);
pipe->users++;
mutex_unlock(&isp->mutex);
return 0;
error:
mutex_unlock(&isp->mutex);
v4l2_fh_release(file);
return ret;
}
static int atomisp_release(struct file *file)
{
struct video_device *vdev = video_devdata(file);
struct atomisp_device *isp = video_get_drvdata(vdev);
struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
struct atomisp_sub_device *asd = pipe->asd;
struct v4l2_subdev_fh fh;
struct v4l2_rect clear_compose = {0};
v4l2_fh_init(&fh.vfh, vdev);
dev_dbg(isp->dev, "release device %s\n", vdev->name);
/* Note file must not be used after this! */
vb2_fop_release(file);
mutex_lock(&isp->mutex);
pipe->users--;
/*
* A little trick here:
* file injection input resolution is recorded in the sink pad,
* therefore can not be cleared when releaseing one device node.
* The sink pad setting can only be cleared when all device nodes
* get released.
*/
{
struct v4l2_mbus_framefmt isp_sink_fmt = { 0 };
atomisp_subdev_set_ffmt(&asd->subdev, fh.state,
V4L2_SUBDEV_FORMAT_ACTIVE,
ATOMISP_SUBDEV_PAD_SINK, &isp_sink_fmt);
}
atomisp_css_free_stat_buffers(asd);
atomisp_free_internal_buffers(asd);
atomisp_s_sensor_power(isp, asd->input_curr, 0);
atomisp_destroy_pipes_stream(asd);
if (pm_runtime_put_sync(vdev->v4l2_dev->dev) < 0)
dev_err(isp->dev, "Failed to power off device\n");
atomisp_subdev_set_selection(&asd->subdev, fh.state,
V4L2_SUBDEV_FORMAT_ACTIVE,
ATOMISP_SUBDEV_PAD_SOURCE,
V4L2_SEL_TGT_COMPOSE, 0,
&clear_compose);
mutex_unlock(&isp->mutex);
return 0;
}
const struct v4l2_file_operations atomisp_fops = {
.owner = THIS_MODULE,
.open = atomisp_open,
.release = atomisp_release,
.mmap = vb2_fop_mmap,
.poll = vb2_fop_poll,
.unlocked_ioctl = video_ioctl2,
#ifdef CONFIG_COMPAT
/*
* this was removed because of bugs, the interface
* needs to be made safe for compat tasks instead.
.compat_ioctl32 = atomisp_compat_ioctl32,
*/
#endif
};
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