blob: 019c77e84514c113489db4799a71e81b4df38af7 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright 2020-2021 NXP
*/
#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/platform_device.h>
#include "vpu.h"
#include "vpu_core.h"
#include "vpu_rpc.h"
#include "vpu_helpers.h"
int vpu_helper_find_in_array_u8(const u8 *array, u32 size, u32 x)
{
int i;
for (i = 0; i < size; i++) {
if (array[i] == x)
return i;
}
return 0;
}
bool vpu_helper_check_type(struct vpu_inst *inst, u32 type)
{
const struct vpu_format *pfmt;
for (pfmt = inst->formats; pfmt->pixfmt; pfmt++) {
if (!vpu_iface_check_format(inst, pfmt->pixfmt))
continue;
if (pfmt->type == type)
return true;
}
return false;
}
const struct vpu_format *vpu_helper_find_format(struct vpu_inst *inst, u32 type, u32 pixelfmt)
{
const struct vpu_format *pfmt;
if (!inst || !inst->formats)
return NULL;
if (!vpu_iface_check_format(inst, pixelfmt))
return NULL;
for (pfmt = inst->formats; pfmt->pixfmt; pfmt++) {
if (pfmt->pixfmt == pixelfmt && (!type || type == pfmt->type))
return pfmt;
}
return NULL;
}
const struct vpu_format *vpu_helper_find_sibling(struct vpu_inst *inst, u32 type, u32 pixelfmt)
{
const struct vpu_format *fmt;
const struct vpu_format *sibling;
fmt = vpu_helper_find_format(inst, type, pixelfmt);
if (!fmt || !fmt->sibling)
return NULL;
sibling = vpu_helper_find_format(inst, type, fmt->sibling);
if (!sibling || sibling->sibling != fmt->pixfmt ||
sibling->comp_planes != fmt->comp_planes)
return NULL;
return sibling;
}
bool vpu_helper_match_format(struct vpu_inst *inst, u32 type, u32 fmta, u32 fmtb)
{
const struct vpu_format *sibling;
if (fmta == fmtb)
return true;
sibling = vpu_helper_find_sibling(inst, type, fmta);
if (sibling && sibling->pixfmt == fmtb)
return true;
return false;
}
const struct vpu_format *vpu_helper_enum_format(struct vpu_inst *inst, u32 type, int index)
{
const struct vpu_format *pfmt;
int i = 0;
if (!inst || !inst->formats)
return NULL;
for (pfmt = inst->formats; pfmt->pixfmt; pfmt++) {
if (!vpu_iface_check_format(inst, pfmt->pixfmt))
continue;
if (pfmt->type == type) {
if (index == i)
return pfmt;
i++;
}
}
return NULL;
}
u32 vpu_helper_valid_frame_width(struct vpu_inst *inst, u32 width)
{
const struct vpu_core_resources *res;
if (!inst)
return width;
res = vpu_get_resource(inst);
if (!res)
return width;
if (res->max_width)
width = clamp(width, res->min_width, res->max_width);
if (res->step_width)
width = ALIGN(width, res->step_width);
return width;
}
u32 vpu_helper_valid_frame_height(struct vpu_inst *inst, u32 height)
{
const struct vpu_core_resources *res;
if (!inst)
return height;
res = vpu_get_resource(inst);
if (!res)
return height;
if (res->max_height)
height = clamp(height, res->min_height, res->max_height);
if (res->step_height)
height = ALIGN(height, res->step_height);
return height;
}
static u32 get_nv12_plane_size(u32 width, u32 height, int plane_no,
u32 stride, u32 interlaced, u32 *pbl)
{
u32 bytesperline;
u32 size = 0;
bytesperline = width;
if (pbl)
bytesperline = max(bytesperline, *pbl);
bytesperline = ALIGN(bytesperline, stride);
height = ALIGN(height, 2);
if (plane_no == 0)
size = bytesperline * height;
else if (plane_no == 1)
size = bytesperline * height >> 1;
if (pbl)
*pbl = bytesperline;
return size;
}
static u32 get_tiled_8l128_plane_size(u32 fmt, u32 width, u32 height, int plane_no,
u32 stride, u32 interlaced, u32 *pbl)
{
u32 ws = 3;
u32 hs = 7;
u32 bitdepth = 8;
u32 bytesperline;
u32 size = 0;
if (interlaced)
hs++;
if (fmt == V4L2_PIX_FMT_NV12M_10BE_8L128 || fmt == V4L2_PIX_FMT_NV12_10BE_8L128)
bitdepth = 10;
bytesperline = DIV_ROUND_UP(width * bitdepth, BITS_PER_BYTE);
if (pbl)
bytesperline = max(bytesperline, *pbl);
bytesperline = ALIGN(bytesperline, 1 << ws);
bytesperline = ALIGN(bytesperline, stride);
height = ALIGN(height, 1 << hs);
if (plane_no == 0)
size = bytesperline * height;
else if (plane_no == 1)
size = (bytesperline * ALIGN(height, 1 << (hs + 1))) >> 1;
if (pbl)
*pbl = bytesperline;
return size;
}
static u32 get_default_plane_size(u32 width, u32 height, int plane_no,
u32 stride, u32 interlaced, u32 *pbl)
{
u32 bytesperline;
u32 size = 0;
bytesperline = width;
if (pbl)
bytesperline = max(bytesperline, *pbl);
bytesperline = ALIGN(bytesperline, stride);
if (plane_no == 0)
size = bytesperline * height;
if (pbl)
*pbl = bytesperline;
return size;
}
u32 vpu_helper_get_plane_size(u32 fmt, u32 w, u32 h, int plane_no,
u32 stride, u32 interlaced, u32 *pbl)
{
switch (fmt) {
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV12M:
return get_nv12_plane_size(w, h, plane_no, stride, interlaced, pbl);
case V4L2_PIX_FMT_NV12_8L128:
case V4L2_PIX_FMT_NV12M_8L128:
case V4L2_PIX_FMT_NV12_10BE_8L128:
case V4L2_PIX_FMT_NV12M_10BE_8L128:
return get_tiled_8l128_plane_size(fmt, w, h, plane_no, stride, interlaced, pbl);
default:
return get_default_plane_size(w, h, plane_no, stride, interlaced, pbl);
}
}
int vpu_helper_copy_from_stream_buffer(struct vpu_buffer *stream_buffer,
u32 *rptr, u32 size, void *dst)
{
u32 offset;
u32 start;
u32 end;
void *virt;
if (!stream_buffer || !rptr || !dst)
return -EINVAL;
if (!size)
return 0;
offset = *rptr;
start = stream_buffer->phys;
end = start + stream_buffer->length;
virt = stream_buffer->virt;
if (offset < start || offset > end)
return -EINVAL;
if (offset + size <= end) {
memcpy(dst, virt + (offset - start), size);
} else {
memcpy(dst, virt + (offset - start), end - offset);
memcpy(dst + end - offset, virt, size + offset - end);
}
*rptr = vpu_helper_step_walk(stream_buffer, offset, size);
return 0;
}
int vpu_helper_copy_to_stream_buffer(struct vpu_buffer *stream_buffer,
u32 *wptr, u32 size, void *src)
{
u32 offset;
u32 start;
u32 end;
void *virt;
if (!stream_buffer || !wptr || !src)
return -EINVAL;
if (!size)
return 0;
offset = *wptr;
start = stream_buffer->phys;
end = start + stream_buffer->length;
virt = stream_buffer->virt;
if (offset < start || offset > end)
return -EINVAL;
if (offset + size <= end) {
memcpy(virt + (offset - start), src, size);
} else {
memcpy(virt + (offset - start), src, end - offset);
memcpy(virt, src + end - offset, size + offset - end);
}
*wptr = vpu_helper_step_walk(stream_buffer, offset, size);
return 0;
}
int vpu_helper_memset_stream_buffer(struct vpu_buffer *stream_buffer,
u32 *wptr, u8 val, u32 size)
{
u32 offset;
u32 start;
u32 end;
void *virt;
if (!stream_buffer || !wptr)
return -EINVAL;
if (!size)
return 0;
offset = *wptr;
start = stream_buffer->phys;
end = start + stream_buffer->length;
virt = stream_buffer->virt;
if (offset < start || offset > end)
return -EINVAL;
if (offset + size <= end) {
memset(virt + (offset - start), val, size);
} else {
memset(virt + (offset - start), val, end - offset);
memset(virt, val, size + offset - end);
}
offset += size;
if (offset >= end)
offset -= stream_buffer->length;
*wptr = offset;
return 0;
}
u32 vpu_helper_get_free_space(struct vpu_inst *inst)
{
struct vpu_rpc_buffer_desc desc;
if (vpu_iface_get_stream_buffer_desc(inst, &desc))
return 0;
if (desc.rptr > desc.wptr)
return desc.rptr - desc.wptr;
else if (desc.rptr < desc.wptr)
return (desc.end - desc.start + desc.rptr - desc.wptr);
else
return desc.end - desc.start;
}
u32 vpu_helper_get_used_space(struct vpu_inst *inst)
{
struct vpu_rpc_buffer_desc desc;
if (vpu_iface_get_stream_buffer_desc(inst, &desc))
return 0;
if (desc.wptr > desc.rptr)
return desc.wptr - desc.rptr;
else if (desc.wptr < desc.rptr)
return (desc.end - desc.start + desc.wptr - desc.rptr);
else
return 0;
}
int vpu_helper_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
struct vpu_inst *inst = ctrl_to_inst(ctrl);
switch (ctrl->id) {
case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE:
ctrl->val = inst->min_buffer_cap;
break;
case V4L2_CID_MIN_BUFFERS_FOR_OUTPUT:
ctrl->val = inst->min_buffer_out;
break;
default:
return -EINVAL;
}
return 0;
}
int vpu_helper_find_startcode(struct vpu_buffer *stream_buffer,
u32 pixelformat, u32 offset, u32 bytesused)
{
u32 start_code;
int start_code_size;
u32 val = 0;
int i;
int ret = -EINVAL;
if (!stream_buffer || !stream_buffer->virt)
return -EINVAL;
switch (pixelformat) {
case V4L2_PIX_FMT_H264:
start_code_size = 4;
start_code = 0x00000001;
break;
default:
return 0;
}
for (i = 0; i < bytesused; i++) {
val = (val << 8) | vpu_helper_read_byte(stream_buffer, offset + i);
if (i < start_code_size - 1)
continue;
if (val == start_code) {
ret = i + 1 - start_code_size;
break;
}
}
return ret;
}
int vpu_find_dst_by_src(struct vpu_pair *pairs, u32 cnt, u32 src)
{
u32 i;
if (!pairs || !cnt)
return -EINVAL;
for (i = 0; i < cnt; i++) {
if (pairs[i].src == src)
return pairs[i].dst;
}
return -EINVAL;
}
int vpu_find_src_by_dst(struct vpu_pair *pairs, u32 cnt, u32 dst)
{
u32 i;
if (!pairs || !cnt)
return -EINVAL;
for (i = 0; i < cnt; i++) {
if (pairs[i].dst == dst)
return pairs[i].src;
}
return -EINVAL;
}