Release 4.11 drivers/gpu/drm/exynos/exynos_drm_plane.c
/*
* Copyright (C) 2011 Samsung Electronics Co.Ltd
* Authors: Joonyoung Shim <jy0922.shim@samsung.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#include <drm/drmP.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_plane_helper.h>
#include <drm/exynos_drm.h>
#include "exynos_drm_drv.h"
#include "exynos_drm_crtc.h"
#include "exynos_drm_fb.h"
#include "exynos_drm_gem.h"
#include "exynos_drm_plane.h"
/*
* This function is to get X or Y size shown via screen. This needs length and
* start position of CRTC.
*
* <--- length --->
* CRTC ----------------
* ^ start ^ end
*
* There are six cases from a to f.
*
* <----- SCREEN ----->
* 0 last
* ----------|------------------|----------
* CRTCs
* a -------
* b -------
* c --------------------------
* d --------
* e -------
* f -------
*/
static int exynos_plane_get_size(int start, unsigned length, unsigned last)
{
int end = start + length;
int size = 0;
if (start <= 0) {
if (end > 0)
size = min_t(unsigned, end, last);
} else if (start <= last) {
size = min_t(unsigned, last - start, length);
}
return size;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Joonyoung Shim | 77 | 100.00% | 1 | 100.00% |
| Total | 77 | 100.00% | 1 | 100.00% |
static void exynos_plane_mode_set(struct exynos_drm_plane_state *exynos_state)
{
struct drm_plane_state *state = &exynos_state->base;
struct drm_crtc *crtc = state->crtc;
struct drm_crtc_state *crtc_state =
drm_atomic_get_existing_crtc_state(state->state, crtc);
struct drm_display_mode *mode = &crtc_state->adjusted_mode;
int crtc_x, crtc_y;
unsigned int crtc_w, crtc_h;
unsigned int src_x, src_y;
unsigned int src_w, src_h;
unsigned int actual_w;
unsigned int actual_h;
/*
* The original src/dest coordinates are stored in exynos_state->base,
* but we want to keep another copy internal to our driver that we can
* clip/modify ourselves.
*/
crtc_x = state->crtc_x;
crtc_y = state->crtc_y;
crtc_w = state->crtc_w;
crtc_h = state->crtc_h;
src_x = state->src_x >> 16;
src_y = state->src_y >> 16;
src_w = state->src_w >> 16;
src_h = state->src_h >> 16;
/* set ratio */
exynos_state->h_ratio = (src_w << 16) / crtc_w;
exynos_state->v_ratio = (src_h << 16) / crtc_h;
/* clip to visible area */
actual_w = exynos_plane_get_size(crtc_x, crtc_w, mode->hdisplay);
actual_h = exynos_plane_get_size(crtc_y, crtc_h, mode->vdisplay);
if (crtc_x < 0) {
if (actual_w)
src_x += ((-crtc_x) * exynos_state->h_ratio) >> 16;
crtc_x = 0;
}
if (crtc_y < 0) {
if (actual_h)
src_y += ((-crtc_y) * exynos_state->v_ratio) >> 16;
crtc_y = 0;
}
/* set drm framebuffer data. */
exynos_state->src.x = src_x;
exynos_state->src.y = src_y;
exynos_state->src.w = (actual_w * exynos_state->h_ratio) >> 16;
exynos_state->src.h = (actual_h * exynos_state->v_ratio) >> 16;
/* set plane range to be displayed. */
exynos_state->crtc.x = crtc_x;
exynos_state->crtc.y = crtc_y;
exynos_state->crtc.w = actual_w;
exynos_state->crtc.h = actual_h;
DRM_DEBUG_KMS("plane : offset_x/y(%d,%d), width/height(%d,%d)",
exynos_state->crtc.x, exynos_state->crtc.y,
exynos_state->crtc.w, exynos_state->crtc.h);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Marek Szyprowski | 188 | 51.23% | 2 | 16.67% |
| Joonyoung Shim | 126 | 34.33% | 5 | 41.67% |
| Gustavo Fernando Padovan | 34 | 9.26% | 3 | 25.00% |
| Andrzej Hajda | 16 | 4.36% | 1 | 8.33% |
| Seung-Woo Kim | 3 | 0.82% | 1 | 8.33% |
| Total | 367 | 100.00% | 12 | 100.00% |
static void exynos_drm_plane_reset(struct drm_plane *plane)
{
struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
struct exynos_drm_plane_state *exynos_state;
if (plane->state) {
exynos_state = to_exynos_plane_state(plane->state);
if (exynos_state->base.fb)
drm_framebuffer_unreference(exynos_state->base.fb);
kfree(exynos_state);
plane->state = NULL;
}
exynos_state = kzalloc(sizeof(*exynos_state), GFP_KERNEL);
if (exynos_state) {
plane->state = &exynos_state->base;
plane->state->plane = plane;
plane->state->zpos = exynos_plane->config->zpos;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Marek Szyprowski | 116 | 97.48% | 3 | 75.00% |
| Andrzej Hajda | 3 | 2.52% | 1 | 25.00% |
| Total | 119 | 100.00% | 4 | 100.00% |
static struct drm_plane_state *
exynos_drm_plane_duplicate_state(struct drm_plane *plane)
{
struct exynos_drm_plane_state *exynos_state;
struct exynos_drm_plane_state *copy;
exynos_state = to_exynos_plane_state(plane->state);
copy = kzalloc(sizeof(*exynos_state), GFP_KERNEL);
if (!copy)
return NULL;
__drm_atomic_helper_plane_duplicate_state(plane, ©->base);
return ©->base;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Marek Szyprowski | 69 | 100.00% | 1 | 100.00% |
| Total | 69 | 100.00% | 1 | 100.00% |
static void exynos_drm_plane_destroy_state(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct exynos_drm_plane_state *old_exynos_state =
to_exynos_plane_state(old_state);
__drm_atomic_helper_plane_destroy_state(old_state);
kfree(old_exynos_state);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Marek Szyprowski | 34 | 94.44% | 1 | 33.33% |
| Joonyoung Shim | 1 | 2.78% | 1 | 33.33% |
| Andrzej Hajda | 1 | 2.78% | 1 | 33.33% |
| Total | 36 | 100.00% | 3 | 100.00% |
static struct drm_plane_funcs exynos_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
.set_property = drm_atomic_helper_plane_set_property,
.reset = exynos_drm_plane_reset,
.atomic_duplicate_state = exynos_drm_plane_duplicate_state,
.atomic_destroy_state = exynos_drm_plane_destroy_state,
};
static int
exynos_drm_plane_check_size(const struct exynos_drm_plane_config *config,
struct exynos_drm_plane_state *state)
{
bool width_ok = false, height_ok = false;
if (config->capabilities & EXYNOS_DRM_PLANE_CAP_SCALE)
return 0;
if (state->src.w == state->crtc.w)
width_ok = true;
if (state->src.h == state->crtc.h)
height_ok = true;
if ((config->capabilities & EXYNOS_DRM_PLANE_CAP_DOUBLE) &&
state->h_ratio == (1 << 15))
width_ok = true;
if ((config->capabilities & EXYNOS_DRM_PLANE_CAP_DOUBLE) &&
state->v_ratio == (1 << 15))
height_ok = true;
if (width_ok && height_ok)
return 0;
DRM_DEBUG_KMS("scaling mode is not supported");
return -ENOTSUPP;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Marek Szyprowski | 127 | 91.37% | 1 | 25.00% |
| Joonyoung Shim | 11 | 7.91% | 2 | 50.00% |
| Tobias Jakobi | 1 | 0.72% | 1 | 25.00% |
| Total | 139 | 100.00% | 4 | 100.00% |
static int exynos_plane_atomic_check(struct drm_plane *plane,
struct drm_plane_state *state)
{
struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
struct exynos_drm_plane_state *exynos_state =
to_exynos_plane_state(state);
int ret = 0;
if (!state->crtc || !state->fb)
return 0;
/* translate state into exynos_state */
exynos_plane_mode_set(exynos_state);
ret = exynos_drm_plane_check_size(exynos_plane->config, exynos_state);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Gustavo Fernando Padovan | 51 | 67.11% | 2 | 50.00% |
| Marek Szyprowski | 25 | 32.89% | 2 | 50.00% |
| Total | 76 | 100.00% | 4 | 100.00% |
static void exynos_plane_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct drm_plane_state *state = plane->state;
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(state->crtc);
struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
if (!state->crtc)
return;
plane->crtc = state->crtc;
if (exynos_crtc->ops->update_plane)
exynos_crtc->ops->update_plane(exynos_crtc, exynos_plane);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Gustavo Fernando Padovan | 80 | 97.56% | 3 | 75.00% |
| Marek Szyprowski | 2 | 2.44% | 1 | 25.00% |
| Total | 82 | 100.00% | 4 | 100.00% |
static void exynos_plane_atomic_disable(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(old_state->crtc);
if (!old_state->crtc)
return;
if (exynos_crtc->ops->disable_plane)
exynos_crtc->ops->disable_plane(exynos_crtc, exynos_plane);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Gustavo Fernando Padovan | 65 | 100.00% | 2 | 100.00% |
| Total | 65 | 100.00% | 2 | 100.00% |
static const struct drm_plane_helper_funcs plane_helper_funcs = {
.atomic_check = exynos_plane_atomic_check,
.atomic_update = exynos_plane_atomic_update,
.atomic_disable = exynos_plane_atomic_disable,
};
static void exynos_plane_attach_zpos_property(struct drm_plane *plane,
bool immutable)
{
/* FIXME */
if (immutable)
drm_plane_create_zpos_immutable_property(plane, 0);
else
drm_plane_create_zpos_property(plane, 0, 0, MAX_PLANE - 1);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Joonyoung Shim | 25 | 62.50% | 1 | 25.00% |
| Marek Szyprowski | 14 | 35.00% | 2 | 50.00% |
| Gustavo Fernando Padovan | 1 | 2.50% | 1 | 25.00% |
| Total | 40 | 100.00% | 4 | 100.00% |
int exynos_plane_init(struct drm_device *dev,
struct exynos_drm_plane *exynos_plane,
unsigned int index, unsigned long possible_crtcs,
const struct exynos_drm_plane_config *config)
{
int err;
err = drm_universal_plane_init(dev, &exynos_plane->base,
possible_crtcs,
&exynos_plane_funcs,
config->pixel_formats,
config->num_pixel_formats,
config->type, NULL);
if (err) {
DRM_ERROR("failed to initialize plane\n");
return err;
}
drm_plane_helper_add(&exynos_plane->base, &plane_helper_funcs);
exynos_plane->index = index;
exynos_plane->config = config;
exynos_plane_attach_zpos_property(&exynos_plane->base,
!(config->capabilities & EXYNOS_DRM_PLANE_CAP_ZPOS));
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Joonyoung Shim | 61 | 50.83% | 3 | 21.43% |
| Marek Szyprowski | 33 | 27.50% | 4 | 28.57% |
| Gustavo Fernando Padovan | 19 | 15.83% | 3 | 21.43% |
| Andrzej Hajda | 3 | 2.50% | 1 | 7.14% |
| Ville Syrjälä | 2 | 1.67% | 1 | 7.14% |
| Sean Paul | 1 | 0.83% | 1 | 7.14% |
| Rob Clark | 1 | 0.83% | 1 | 7.14% |
| Total | 120 | 100.00% | 14 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Marek Szyprowski | 616 | 47.86% | 8 | 21.62% |
| Joonyoung Shim | 337 | 26.18% | 8 | 21.62% |
| Gustavo Fernando Padovan | 293 | 22.77% | 11 | 29.73% |
| Andrzej Hajda | 28 | 2.18% | 2 | 5.41% |
| Seung-Woo Kim | 3 | 0.23% | 1 | 2.70% |
| Mark Brown | 3 | 0.23% | 1 | 2.70% |
| Sean Paul | 2 | 0.16% | 2 | 5.41% |
| Ville Syrjälä | 2 | 0.16% | 1 | 2.70% |
| David Howells | 1 | 0.08% | 1 | 2.70% |
| Rob Clark | 1 | 0.08% | 1 | 2.70% |
| Tobias Jakobi | 1 | 0.08% | 1 | 2.70% |
| Total | 1287 | 100.00% | 37 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.