#include <linux/init.h>
#include <linux/interconnect.h>
#include <linux/ioctl.h>
#include <linux/list.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/videodev2.h>
#include <media/v4l2-device.h>
#include <media/v4l2-event.h>
#include <media/v4l2-mem2mem.h>
#include <media/v4l2-ioctl.h>
#include <media/videobuf2-v4l2.h>
#include <media/videobuf2-dma-contig.h>
#include <media/videobuf2-vmalloc.h>
#include "vpu.h"
#include "vpu_core.h"
#include "vpu_v4l2.h"
#include "vpu_msgs.h"
#include "vpu_helpers.h"
static char *vpu_type_name(u32 type)
{
return V4L2_TYPE_IS_OUTPUT(type) ? "output" : "capture";
}
void vpu_inst_lock(struct vpu_inst *inst)
{
mutex_lock(&inst->lock);
}
void vpu_inst_unlock(struct vpu_inst *inst)
{
mutex_unlock(&inst->lock);
}
dma_addr_t vpu_get_vb_phy_addr(struct vb2_buffer *vb, u32 plane_no)
{
if (plane_no >= vb->num_planes)
return 0;
return vb2_dma_contig_plane_dma_addr(vb, plane_no) +
vb->planes[plane_no].data_offset;
}
static unsigned int vpu_get_vb_length(struct vb2_buffer *vb, u32 plane_no)
{
if (plane_no >= vb->num_planes)
return 0;
return vb2_plane_size(vb, plane_no) - vb->planes[plane_no].data_offset;
}
void vpu_set_buffer_state(struct vb2_v4l2_buffer *vbuf, unsigned int state)
{
struct vpu_vb2_buffer *vpu_buf = to_vpu_vb2_buffer(vbuf);
vpu_buf->state = state;
}
unsigned int vpu_get_buffer_state(struct vb2_v4l2_buffer *vbuf)
{
struct vpu_vb2_buffer *vpu_buf = to_vpu_vb2_buffer(vbuf);
return vpu_buf->state;
}
void vpu_set_buffer_average_qp(struct vb2_v4l2_buffer *vbuf, u32 qp)
{
struct vpu_vb2_buffer *vpu_buf = to_vpu_vb2_buffer(vbuf);
vpu_buf->average_qp = qp;
}
void vpu_v4l2_set_error(struct vpu_inst *inst)
{
vpu_inst_lock(inst);
dev_err(inst->dev, "some error occurs in codec\n");
if (inst->fh.m2m_ctx) {
vb2_queue_error(v4l2_m2m_get_src_vq(inst->fh.m2m_ctx));
vb2_queue_error(v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx));
}
vpu_inst_unlock(inst);
}
static int vpu_notify_eos(struct vpu_inst *inst)
{
static const struct v4l2_event ev = {
.id = 0,
.type = V4L2_EVENT_EOS
};
vpu_trace(inst->dev, "[%d]\n", inst->id);
v4l2_event_queue_fh(&inst->fh, &ev);
return 0;
}
int vpu_notify_source_change(struct vpu_inst *inst)
{
static const struct v4l2_event ev = {
.type = V4L2_EVENT_SOURCE_CHANGE,
.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION
};
vpu_trace(inst->dev, "[%d]\n", inst->id);
v4l2_event_queue_fh(&inst->fh, &ev);
return 0;
}
int vpu_set_last_buffer_dequeued(struct vpu_inst *inst, bool eos)
{
struct vb2_queue *q;
if (!inst || !inst->fh.m2m_ctx)
return -EINVAL;
q = v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx);
if (!list_empty(&q->done_list))
return -EINVAL;
if (q->last_buffer_dequeued)
return 0;
vpu_trace(inst->dev, "last buffer dequeued\n");
q->last_buffer_dequeued = true;
wake_up(&q->done_wq);
if (eos)
vpu_notify_eos(inst);
return 0;
}
bool vpu_is_source_empty(struct vpu_inst *inst)
{
struct v4l2_m2m_buffer *buf = NULL;
if (!inst->fh.m2m_ctx)
return true;
v4l2_m2m_for_each_src_buf(inst->fh.m2m_ctx, buf) {
if (vpu_get_buffer_state(&buf->vb) == VPU_BUF_STATE_IDLE)
return false;
}
return true;
}
static int vpu_init_format(struct vpu_inst *inst, struct vpu_format *fmt)
{
const struct vpu_format *info;
info = vpu_helper_find_format(inst, fmt->type, fmt->pixfmt);
if (!info) {
info = vpu_helper_enum_format(inst, fmt->type, 0);
if (!info)
return -EINVAL;
}
memcpy(fmt, info, sizeof(*fmt));
return 0;
}
static int vpu_calc_fmt_bytesperline(struct v4l2_format *f, struct vpu_format *fmt)
{
struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
int i;
if (fmt->flags & V4L2_FMT_FLAG_COMPRESSED) {
for (i = 0; i < fmt->comp_planes; i++)
fmt->bytesperline[i] = 0;
return 0;
}
if (pixmp->num_planes == fmt->comp_planes) {
for (i = 0; i < fmt->comp_planes; i++)
fmt->bytesperline[i] = pixmp->plane_fmt[i].bytesperline;
return 0;
}
if (pixmp->num_planes > 1)
return -EINVAL;
for (i = 0; i < fmt->comp_planes; i++)
fmt->bytesperline[i] = pixmp->plane_fmt[0].bytesperline;
return 0;
}
static int vpu_calc_fmt_sizeimage(struct vpu_inst *inst, struct vpu_format *fmt)
{
u32 stride = 1;
int i;
if (!(fmt->flags & V4L2_FMT_FLAG_COMPRESSED)) {
const struct vpu_core_resources *res = vpu_get_resource(inst);
if (res)
stride = res->stride;
}
for (i = 0; i < fmt->comp_planes; i++) {
fmt->sizeimage[i] = vpu_helper_get_plane_size(fmt->pixfmt,
fmt->width,
fmt->height,
i,
stride,
fmt->field != V4L2_FIELD_NONE ? 1 : 0,
&fmt->bytesperline[i]);
fmt->sizeimage[i] = max_t(u32, fmt->sizeimage[i], PAGE_SIZE);
if (fmt->flags & V4L2_FMT_FLAG_COMPRESSED) {
fmt->sizeimage[i] = clamp_val(fmt->sizeimage[i], SZ_128K, SZ_8M);
fmt->bytesperline[i] = 0;
}
}
return 0;
}
u32 vpu_get_fmt_plane_size(struct vpu_format *fmt, u32 plane_no)
{
u32 size;
int i;
if (plane_no >= fmt->mem_planes)
return 0;
if (fmt->comp_planes == fmt->mem_planes)
return fmt->sizeimage[plane_no];
if (plane_no < fmt->mem_planes - 1)
return fmt->sizeimage[plane_no];
size = fmt->sizeimage[plane_no];
for (i = fmt->mem_planes; i < fmt->comp_planes; i++)
size += fmt->sizeimage[i];
return size;
}
int vpu_try_fmt_common(struct vpu_inst *inst, struct v4l2_format *f, struct vpu_format *fmt)
{
struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
int i;
int ret;
fmt->pixfmt = pixmp->pixelformat;
fmt->type = f->type;
ret = vpu_init_format(inst, fmt);
if (ret < 0)
return ret;
fmt->width = pixmp->width;
fmt->height = pixmp->height;
if (fmt->width)
fmt->width = vpu_helper_valid_frame_width(inst, fmt->width);
if (fmt->height)
fmt->height = vpu_helper_valid_frame_height(inst, fmt->height);
fmt->field = pixmp->field == V4L2_FIELD_ANY ? V4L2_FIELD_NONE : pixmp->field;
vpu_calc_fmt_bytesperline(f, fmt);
vpu_calc_fmt_sizeimage(inst, fmt);
if ((fmt->flags & V4L2_FMT_FLAG_COMPRESSED) && pixmp->plane_fmt[0].sizeimage)
fmt->sizeimage[0] = clamp_val(pixmp->plane_fmt[0].sizeimage, SZ_128K, SZ_8M);
pixmp->pixelformat = fmt->pixfmt;
pixmp->width = fmt->width;
pixmp->height = fmt->height;
pixmp->flags = fmt->flags;
pixmp->num_planes = fmt->mem_planes;
pixmp->field = fmt->field;
memset(pixmp->reserved, 0, sizeof(pixmp->reserved));
for (i = 0; i < pixmp->num_planes; i++) {
pixmp->plane_fmt[i].bytesperline = fmt->bytesperline[i];
pixmp->plane_fmt[i].sizeimage = vpu_get_fmt_plane_size(fmt, i);
memset(pixmp->plane_fmt[i].reserved, 0, sizeof(pixmp->plane_fmt[i].reserved));
}
return 0;
}
static bool vpu_check_ready(struct vpu_inst *inst, u32 type)
{
if (!inst)
return false;
if (inst->state == VPU_CODEC_STATE_DEINIT || inst->id < 0)
return false;
if (!inst->ops->check_ready)
return true;
return call_vop(inst, check_ready, type);
}
int vpu_process_output_buffer(struct vpu_inst *inst)
{
struct v4l2_m2m_buffer *buf = NULL;
struct vb2_v4l2_buffer *vbuf = NULL;
if (!inst || !inst->fh.m2m_ctx)
return -EINVAL;
if (!vpu_check_ready(inst, inst->out_format.type))
return -EINVAL;
v4l2_m2m_for_each_src_buf(inst->fh.m2m_ctx, buf) {
vbuf = &buf->vb;
if (vpu_get_buffer_state(vbuf) == VPU_BUF_STATE_IDLE)
break;
vbuf = NULL;
}
if (!vbuf)
return -EINVAL;
dev_dbg(inst->dev, "[%d]frame id = %d / %d\n",
inst->id, vbuf->sequence, inst->sequence);
return call_vop(inst, process_output, &vbuf->vb2_buf);
}
int vpu_process_capture_buffer(struct vpu_inst *inst)
{
struct v4l2_m2m_buffer *buf = NULL;
struct vb2_v4l2_buffer *vbuf = NULL;
if (!inst || !inst->fh.m2m_ctx)
return -EINVAL;
if (!vpu_check_ready(inst, inst->cap_format.type))
return -EINVAL;
v4l2_m2m_for_each_dst_buf(inst->fh.m2m_ctx, buf) {
vbuf = &buf->vb;
if (vpu_get_buffer_state(vbuf) == VPU_BUF_STATE_IDLE)
break;
vbuf = NULL;
}
if (!vbuf)
return -EINVAL;
return call_vop(inst, process_capture, &vbuf->vb2_buf);
}
struct vb2_v4l2_buffer *vpu_next_src_buf(struct vpu_inst *inst)
{
struct vb2_v4l2_buffer *src_buf = NULL;
if (!inst->fh.m2m_ctx)
return NULL;
src_buf = v4l2_m2m_next_src_buf(inst->fh.m2m_ctx);
if (!src_buf || vpu_get_buffer_state(src_buf) == VPU_BUF_STATE_IDLE)
return NULL;
return src_buf;
}
void vpu_skip_frame(struct vpu_inst *inst, int count)
{
struct vb2_v4l2_buffer *src_buf;
enum vb2_buffer_state state;
int i = 0;
if (count <= 0 || !inst->fh.m2m_ctx)
return;
while (i < count) {
src_buf = v4l2_m2m_src_buf_remove(inst->fh.m2m_ctx);
if (!src_buf || vpu_get_buffer_state(src_buf) == VPU_BUF_STATE_IDLE)
return;
if (vpu_get_buffer_state(src_buf) == VPU_BUF_STATE_DECODED)
state = VB2_BUF_STATE_DONE;
else
state = VB2_BUF_STATE_ERROR;
i++;
vpu_set_buffer_state(src_buf, VPU_BUF_STATE_IDLE);
v4l2_m2m_buf_done(src_buf, state);
}
}
struct vb2_v4l2_buffer *vpu_find_buf_by_sequence(struct vpu_inst *inst, u32 type, u32 sequence)
{
struct v4l2_m2m_buffer *buf = NULL;
struct vb2_v4l2_buffer *vbuf = NULL;
if (!inst || !inst->fh.m2m_ctx)
return NULL;
if (V4L2_TYPE_IS_OUTPUT(type)) {
v4l2_m2m_for_each_src_buf(inst->fh.m2m_ctx, buf) {
vbuf = &buf->vb;
if (vbuf->sequence == sequence)
break;
vbuf = NULL;
}
} else {
v4l2_m2m_for_each_dst_buf(inst->fh.m2m_ctx, buf) {
vbuf = &buf->vb;
if (vbuf->sequence == sequence)
break;
vbuf = NULL;
}
}
return vbuf;
}
struct vb2_v4l2_buffer *vpu_find_buf_by_idx(struct vpu_inst *inst, u32 type, u32 idx)
{
struct v4l2_m2m_buffer *buf = NULL;
struct vb2_v4l2_buffer *vbuf = NULL;
if (!inst || !inst->fh.m2m_ctx)
return NULL;
if (V4L2_TYPE_IS_OUTPUT(type)) {
v4l2_m2m_for_each_src_buf(inst->fh.m2m_ctx, buf) {
vbuf = &buf->vb;
if (vbuf->vb2_buf.index == idx)
break;
vbuf = NULL;
}
} else {
v4l2_m2m_for_each_dst_buf(inst->fh.m2m_ctx, buf) {
vbuf = &buf->vb;
if (vbuf->vb2_buf.index == idx)
break;
vbuf = NULL;
}
}
return vbuf;
}
int vpu_get_num_buffers(struct vpu_inst *inst, u32 type)
{
struct vb2_queue *q;
if (!inst || !inst->fh.m2m_ctx)
return -EINVAL;
if (V4L2_TYPE_IS_OUTPUT(type))
q = v4l2_m2m_get_src_vq(inst->fh.m2m_ctx);
else
q = v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx);
return vb2_get_num_buffers(q);
}
static void vpu_m2m_device_run(void *priv)
{
}
static void vpu_m2m_job_abort(void *priv)
{
struct vpu_inst *inst = priv;
struct v4l2_m2m_ctx *m2m_ctx = inst->fh.m2m_ctx;
v4l2_m2m_job_finish(m2m_ctx->m2m_dev, m2m_ctx);
}
static const struct v4l2_m2m_ops vpu_m2m_ops = {
.device_run = vpu_m2m_device_run,
.job_abort = vpu_m2m_job_abort
};
static int vpu_vb2_queue_setup(struct vb2_queue *vq,
unsigned int *buf_count,
unsigned int *plane_count,
unsigned int psize[],
struct device *allocators[])
{
struct vpu_inst *inst = vb2_get_drv_priv(vq);
struct vpu_format *cur_fmt;
int i;
cur_fmt = vpu_get_format(inst, vq->type);
if (*plane_count) {
if (*plane_count != cur_fmt->mem_planes)
return -EINVAL;
for (i = 0; i < cur_fmt->mem_planes; i++) {
if (psize[i] < vpu_get_fmt_plane_size(cur_fmt, i))
return -EINVAL;
}
return 0;
}
if (V4L2_TYPE_IS_OUTPUT(vq->type))
*buf_count = max_t(unsigned int, *buf_count, inst->min_buffer_out);
else
*buf_count = max_t(unsigned int, *buf_count, inst->min_buffer_cap);
*plane_count = cur_fmt->mem_planes;
for (i = 0; i < cur_fmt->mem_planes; i++)
psize[i] = vpu_get_fmt_plane_size(cur_fmt, i);
if (V4L2_TYPE_IS_OUTPUT(vq->type) && inst->state == VPU_CODEC_STATE_SEEK) {
vpu_trace(inst->dev, "reinit when VIDIOC_REQBUFS(OUTPUT, 0)\n");
call_void_vop(inst, release);
}
if (V4L2_TYPE_IS_CAPTURE(vq->type))
call_void_vop(inst, reset_frame_store);
return 0;
}
static int vpu_vb2_buf_init(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct vpu_vb2_buffer *vpu_buf = to_vpu_vb2_buffer(vbuf);
struct vpu_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
vpu_buf->fs_id = -1;
vpu_set_buffer_state(vbuf, VPU_BUF_STATE_IDLE);
if (!inst->ops->attach_frame_store || V4L2_TYPE_IS_OUTPUT(vb->type))
return 0;
call_void_vop(inst, attach_frame_store, vb);
return 0;
}
static int vpu_vb2_buf_out_validate(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
vbuf->field = V4L2_FIELD_NONE;
return 0;
}
static int vpu_vb2_buf_prepare(struct vb2_buffer *vb)
{
struct vpu_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct vpu_format *cur_fmt;
u32 i;
cur_fmt = vpu_get_format(inst, vb->type);
for (i = 0; i < cur_fmt->mem_planes; i++) {
if (vpu_get_vb_length(vb, i) < vpu_get_fmt_plane_size(cur_fmt, i)) {
dev_dbg(inst->dev, "[%d] %s buf[%d] is invalid\n",
inst->id, vpu_type_name(vb->type), vb->index);
vpu_set_buffer_state(vbuf, VPU_BUF_STATE_ERROR);
}
}
return 0;
}
static void vpu_vb2_buf_finish(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct vpu_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
struct vb2_queue *q = vb->vb2_queue;
if (V4L2_TYPE_IS_CAPTURE(vb->type)) {
struct vpu_vb2_buffer *vpu_buf = to_vpu_vb2_buffer(vbuf);
struct v4l2_ctrl *ctrl = v4l2_ctrl_find(&inst->ctrl_handler,
V4L2_CID_MPEG_VIDEO_AVERAGE_QP);
if (ctrl)
v4l2_ctrl_s_ctrl(ctrl, vpu_buf->average_qp);
}
if (vbuf->flags & V4L2_BUF_FLAG_LAST)
vpu_notify_eos(inst);
if (list_empty(&q->done_list))
call_void_vop(inst, on_queue_empty, q->type);
}
static void vpu_vb2_buffers_return(struct vpu_inst *inst, unsigned int type,
enum vb2_buffer_state state)
{
struct vb2_v4l2_buffer *buf;
if (V4L2_TYPE_IS_OUTPUT(type)) {
while ((buf = v4l2_m2m_src_buf_remove(inst->fh.m2m_ctx))) {
vpu_set_buffer_state(buf, VPU_BUF_STATE_IDLE);
v4l2_m2m_buf_done(buf, state);
}
} else {
while ((buf = v4l2_m2m_dst_buf_remove(inst->fh.m2m_ctx))) {
vpu_set_buffer_state(buf, VPU_BUF_STATE_IDLE);
v4l2_m2m_buf_done(buf, state);
}
}
}
static int vpu_vb2_start_streaming(struct vb2_queue *q, unsigned int count)
{
struct vpu_inst *inst = vb2_get_drv_priv(q);
struct vpu_format *fmt = vpu_get_format(inst, q->type);
int ret;
vpu_inst_unlock(inst);
ret = vpu_inst_register(inst);
vpu_inst_lock(inst);
if (ret) {
vpu_vb2_buffers_return(inst, q->type, VB2_BUF_STATE_QUEUED);
return ret;
}
vpu_trace(inst->dev, "[%d] %s %c%c%c%c %dx%d %u(%u) %u(%u) %u(%u) %d\n",
inst->id, vpu_type_name(q->type),
fmt->pixfmt,
fmt->pixfmt >> 8,
fmt->pixfmt >> 16,
fmt->pixfmt >> 24,
fmt->width, fmt->height,
fmt->sizeimage[0], fmt->bytesperline[0],
fmt->sizeimage[1], fmt->bytesperline[1],
fmt->sizeimage[2], fmt->bytesperline[2],
vb2_get_num_buffers(q));
vb2_clear_last_buffer_dequeued(q);
ret = call_vop(inst, start, q->type);
if (ret)
vpu_vb2_buffers_return(inst, q->type, VB2_BUF_STATE_QUEUED);
return ret;
}
static void vpu_vb2_stop_streaming(struct vb2_queue *q)
{
struct vpu_inst *inst = vb2_get_drv_priv(q);
vpu_trace(inst->dev, "[%d] %s\n", inst->id, vpu_type_name(q->type));
call_void_vop(inst, stop, q->type);
vpu_vb2_buffers_return(inst, q->type, VB2_BUF_STATE_ERROR);
if (V4L2_TYPE_IS_OUTPUT(q->type))
inst->sequence = 0;
}
static void vpu_vb2_buf_queue(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct vpu_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
if (V4L2_TYPE_IS_OUTPUT(vb->type))
vbuf->sequence = inst->sequence++;
v4l2_m2m_buf_queue(inst->fh.m2m_ctx, vbuf);
vpu_process_output_buffer(inst);
vpu_process_capture_buffer(inst);
}
static const struct vb2_ops vpu_vb2_ops = {
.queue_setup = vpu_vb2_queue_setup,
.buf_init = vpu_vb2_buf_init,
.buf_out_validate = vpu_vb2_buf_out_validate,
.buf_prepare = vpu_vb2_buf_prepare,
.buf_finish = vpu_vb2_buf_finish,
.start_streaming = vpu_vb2_start_streaming,
.stop_streaming = vpu_vb2_stop_streaming,
.buf_queue = vpu_vb2_buf_queue,
};
static int vpu_m2m_queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
{
struct vpu_inst *inst = priv;
int ret;
src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
inst->out_format.type = src_vq->type;
src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
src_vq->ops = &vpu_vb2_ops;
src_vq->mem_ops = &vb2_dma_contig_memops;
if (inst->type == VPU_CORE_TYPE_DEC && inst->use_stream_buffer)
src_vq->mem_ops = &vb2_vmalloc_memops;
src_vq->drv_priv = inst;
src_vq->buf_struct_size = sizeof(struct vpu_vb2_buffer);
src_vq->dev = inst->vpu->dev;
src_vq->lock = &inst->lock;
ret = vb2_queue_init(src_vq);
if (ret)
return ret;
dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
inst->cap_format.type = dst_vq->type;
dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
dst_vq->ops = &vpu_vb2_ops;
dst_vq->mem_ops = &vb2_dma_contig_memops;
if (inst->type == VPU_CORE_TYPE_ENC && inst->use_stream_buffer)
dst_vq->mem_ops = &vb2_vmalloc_memops;
dst_vq->drv_priv = inst;
dst_vq->buf_struct_size = sizeof(struct vpu_vb2_buffer);
dst_vq->dev = inst->vpu->dev;
dst_vq->lock = &inst->lock;
ret = vb2_queue_init(dst_vq);
if (ret) {
vb2_queue_release(src_vq);
return ret;
}
return 0;
}
static int vpu_v4l2_release(struct vpu_inst *inst)
{
vpu_trace(inst->vpu->dev, "%p\n", inst);
if (inst->workqueue) {
cancel_work_sync(&inst->msg_work);
destroy_workqueue(inst->workqueue);
inst->workqueue = NULL;
}
vpu_release_core(inst->core);
put_device(inst->dev);
v4l2_ctrl_handler_free(&inst->ctrl_handler);
mutex_destroy(&inst->lock);
call_void_vop(inst, cleanup);
return 0;
}
int vpu_v4l2_open(struct file *file, struct vpu_inst *inst)
{
struct vpu_dev *vpu = video_drvdata(file);
struct vpu_func *func;
int ret = 0;
if (!inst || !inst->ops)
return -EINVAL;
if (inst->type == VPU_CORE_TYPE_ENC)
func = &vpu->encoder;
else
func = &vpu->decoder;
atomic_set(&inst->ref_count, 0);
atomic_long_set(&inst->last_response_cmd, 0);
vpu_inst_get(inst);
inst->vpu = vpu;
inst->core = vpu_request_core(vpu, inst->type);
if (inst->core)
inst->dev = get_device(inst->core->dev);
mutex_init(&inst->lock);
INIT_LIST_HEAD(&inst->cmd_q);
inst->id = VPU_INST_NULL_ID;
inst->release = vpu_v4l2_release;
inst->pid = current->pid;
inst->tgid = current->tgid;
inst->min_buffer_cap = 2;
inst->min_buffer_out = 2;
v4l2_fh_init(&inst->fh, func->vfd);
v4l2_fh_add(&inst->fh, file);
ret = call_vop(inst, ctrl_init);
if (ret)
goto error;
inst->fh.m2m_ctx = v4l2_m2m_ctx_init(func->m2m_dev, inst, vpu_m2m_queue_init);
if (IS_ERR(inst->fh.m2m_ctx)) {
dev_err(vpu->dev, "v4l2_m2m_ctx_init fail\n");
ret = PTR_ERR(inst->fh.m2m_ctx);
goto error;
}
inst->fh.ctrl_handler = &inst->ctrl_handler;
inst->state = VPU_CODEC_STATE_DEINIT;
inst->workqueue = alloc_ordered_workqueue("vpu_inst", WQ_MEM_RECLAIM);
if (inst->workqueue) {
INIT_WORK(&inst->msg_work, vpu_inst_run_work);
ret = kfifo_init(&inst->msg_fifo,
inst->msg_buffer,
rounddown_pow_of_two(sizeof(inst->msg_buffer)));
if (ret) {
destroy_workqueue(inst->workqueue);
inst->workqueue = NULL;
}
}
vpu_trace(vpu->dev, "tgid = %d, pid = %d, type = %s, inst = %p\n",
inst->tgid, inst->pid, vpu_core_type_desc(inst->type), inst);
return 0;
error:
v4l2_fh_del(&inst->fh, file);
v4l2_fh_exit(&inst->fh);
vpu_inst_put(inst);
return ret;
}
int vpu_v4l2_close(struct file *file)
{
struct vpu_dev *vpu = video_drvdata(file);
struct vpu_inst *inst = to_inst(file);
vpu_trace(vpu->dev, "tgid = %d, pid = %d, inst = %p\n", inst->tgid, inst->pid, inst);
vpu_inst_lock(inst);
if (inst->fh.m2m_ctx) {
v4l2_m2m_ctx_release(inst->fh.m2m_ctx);
inst->fh.m2m_ctx = NULL;
}
call_void_vop(inst, release);
vpu_inst_unlock(inst);
v4l2_fh_del(&inst->fh, file);
v4l2_fh_exit(&inst->fh);
vpu_inst_unregister(inst);
vpu_inst_put(inst);
return 0;
}
int vpu_add_func(struct vpu_dev *vpu, struct vpu_func *func)
{
struct video_device *vfd;
int ret;
if (!vpu || !func)
return -EINVAL;
if (func->vfd)
return 0;
func->m2m_dev = v4l2_m2m_init(&vpu_m2m_ops);
if (IS_ERR(func->m2m_dev)) {
dev_err(vpu->dev, "v4l2_m2m_init fail\n");
func->vfd = NULL;
return PTR_ERR(func->m2m_dev);
}
vfd = video_device_alloc();
if (!vfd) {
v4l2_m2m_release(func->m2m_dev);
dev_err(vpu->dev, "alloc vpu decoder video device fail\n");
return -ENOMEM;
}
vfd->release = video_device_release;
vfd->vfl_dir = VFL_DIR_M2M;
vfd->v4l2_dev = &vpu->v4l2_dev;
vfd->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
if (func->type == VPU_CORE_TYPE_ENC) {
strscpy(vfd->name, "amphion-vpu-encoder", sizeof(vfd->name));
vfd->fops = venc_get_fops();
vfd->ioctl_ops = venc_get_ioctl_ops();
} else {
strscpy(vfd->name, "amphion-vpu-decoder", sizeof(vfd->name));
vfd->fops = vdec_get_fops();
vfd->ioctl_ops = vdec_get_ioctl_ops();
}
video_set_drvdata(vfd, vpu);
ret = video_register_device(vfd, VFL_TYPE_VIDEO, -1);
if (ret) {
video_device_release(vfd);
v4l2_m2m_release(func->m2m_dev);
return ret;
}
func->vfd = vfd;
ret = v4l2_m2m_register_media_controller(func->m2m_dev, func->vfd, func->function);
if (ret) {
v4l2_m2m_release(func->m2m_dev);
func->m2m_dev = NULL;
video_unregister_device(func->vfd);
func->vfd = NULL;
return ret;
}
return 0;
}
void vpu_remove_func(struct vpu_func *func)
{
if (!func)
return;
if (func->m2m_dev) {
v4l2_m2m_unregister_media_controller(func->m2m_dev);
v4l2_m2m_release(func->m2m_dev);
func->m2m_dev = NULL;
}
if (func->vfd) {
video_unregister_device(func->vfd);
func->vfd = NULL;
}
}
