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/*
* Copyright (C) STMicroelectronics SA 2014
* Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
* Fabien Dessenne <fabien.dessenne@st.com>
* for STMicroelectronics.
* License terms: GNU General Public License (GPL), version 2
*/
#include <drm/drmP.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include "sti_compositor.h"
#include "sti_drv.h"
#include "sti_plane.h"
/* (Background) < GDP0 < GDP1 < HQVDP0 < GDP2 < GDP3 < (ForeGround) */
enum sti_plane_desc sti_plane_default_zorder[] = {
STI_GDP_0,
STI_GDP_1,
STI_HQVDP_0,
STI_GDP_2,
STI_GDP_3,
};
const char *sti_plane_to_str(struct sti_plane *plane)
{
switch (plane->desc) {
case STI_GDP_0:
return "GDP0";
case STI_GDP_1:
return "GDP1";
case STI_GDP_2:
return "GDP2";
case STI_GDP_3:
return "GDP3";
case STI_HQVDP_0:
return "HQVDP0";
case STI_CURSOR:
return "CURSOR";
default:
return "<UNKNOWN PLANE>";
}
}
#define STI_FPS_INTERVAL_MS 3000
static int sti_plane_timespec_ms_diff(struct timespec lhs, struct timespec rhs)
{
struct timespec tmp_ts = timespec_sub(lhs, rhs);
u64 tmp_ns = (u64)timespec_to_ns(&tmp_ts);
do_div(tmp_ns, NSEC_PER_MSEC);
return (u32)tmp_ns;
}
void sti_plane_update_fps(struct sti_plane *plane,
bool new_frame,
bool new_field)
{
struct timespec now;
struct sti_fps_info *fps;
int fpks, fipks, ms_since_last, num_frames, num_fields;
getrawmonotonic(&now);
/* Compute number of frame updates */
fps = &plane->fps_info;
if (new_field)
fps->curr_field_counter++;
/* do not perform fps calcul if new_frame is false */
if (!new_frame)
return;
fps->curr_frame_counter++;
ms_since_last = sti_plane_timespec_ms_diff(now, fps->last_timestamp);
num_frames = fps->curr_frame_counter - fps->last_frame_counter;
if (num_frames <= 0 || ms_since_last < STI_FPS_INTERVAL_MS)
return;
fps->last_timestamp = now;
fps->last_frame_counter = fps->curr_frame_counter;
fpks = (num_frames * 1000000) / ms_since_last;
snprintf(plane->fps_info.fps_str, FPS_LENGTH, "%-6s @ %d.%.3d fps",
sti_plane_to_str(plane), fpks / 1000, fpks % 1000);
if (fps->curr_field_counter) {
/* Compute number of field updates */
num_fields = fps->curr_field_counter - fps->last_field_counter;
fps->last_field_counter = fps->curr_field_counter;
fipks = (num_fields * 1000000) / ms_since_last;
snprintf(plane->fps_info.fips_str,
FPS_LENGTH, " - %d.%.3d field/sec",
fipks / 1000, fipks % 1000);
} else {
plane->fps_info.fips_str[0] = '\0';
}
if (fps->output)
DRM_INFO("%s%s\n",
plane->fps_info.fps_str,
plane->fps_info.fips_str);
}
static void sti_plane_destroy(struct drm_plane *drm_plane)
{
DRM_DEBUG_DRIVER("\n");
drm_plane_helper_disable(drm_plane);
drm_plane_cleanup(drm_plane);
}
static int sti_plane_set_property(struct drm_plane *drm_plane,
struct drm_property *property,
uint64_t val)
{
struct drm_device *dev = drm_plane->dev;
struct sti_private *private = dev->dev_private;
struct sti_plane *plane = to_sti_plane(drm_plane);
DRM_DEBUG_DRIVER("\n");
if (property == private->plane_zorder_property) {
plane->zorder = val;
return 0;
}
return -EINVAL;
}
static void sti_plane_attach_zorder_property(struct drm_plane *drm_plane)
{
struct drm_device *dev = drm_plane->dev;
struct sti_private *private = dev->dev_private;
struct sti_plane *plane = to_sti_plane(drm_plane);
struct drm_property *prop;
prop = private->plane_zorder_property;
if (!prop) {
prop = drm_property_create_range(dev, 0, "zpos", 1,
GAM_MIXER_NB_DEPTH_LEVEL);
if (!prop)
return;
private->plane_zorder_property = prop;
}
drm_object_attach_property(&drm_plane->base, prop, plane->zorder);
}
void sti_plane_init_property(struct sti_plane *plane,
enum drm_plane_type type)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(sti_plane_default_zorder); i++)
if (sti_plane_default_zorder[i] == plane->desc)
break;
plane->zorder = i + 1;
if (type == DRM_PLANE_TYPE_OVERLAY)
sti_plane_attach_zorder_property(&plane->drm_plane);
DRM_DEBUG_DRIVER("drm plane:%d mapped to %s with zorder:%d\n",
plane->drm_plane.base.id,
sti_plane_to_str(plane), plane->zorder);
}
struct drm_plane_funcs sti_plane_helpers_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = sti_plane_destroy,
.set_property = sti_plane_set_property,
.reset = drm_atomic_helper_plane_reset,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
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