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/* exynos_drm_encoder.c
*
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
* Authors:
* Inki Dae <inki.dae@samsung.com>
* Joonyoung Shim <jy0922.shim@samsung.com>
* Seung-Woo Kim <sw0312.kim@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_crtc_helper.h>
#include "exynos_drm_drv.h"
#include "exynos_drm_encoder.h"
static bool
exynos_drm_encoder_mode_fixup(struct drm_encoder *encoder,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct drm_device *dev = encoder->dev;
struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
struct drm_connector *connector;
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
if (connector->encoder != encoder)
continue;
if (exynos_encoder->ops->mode_fixup)
exynos_encoder->ops->mode_fixup(exynos_encoder,
connector, mode,
adjusted_mode);
}
return true;
}
static void exynos_drm_encoder_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
if (exynos_encoder->ops->mode_set)
exynos_encoder->ops->mode_set(exynos_encoder, adjusted_mode);
}
static void exynos_drm_encoder_enable(struct drm_encoder *encoder)
{
struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
if (exynos_encoder->ops->enable)
exynos_encoder->ops->enable(exynos_encoder);
if (exynos_encoder->ops->commit)
exynos_encoder->ops->commit(exynos_encoder);
}
static void exynos_drm_encoder_disable(struct drm_encoder *encoder)
{
struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
if (exynos_encoder->ops->disable)
exynos_encoder->ops->disable(exynos_encoder);
}
static struct drm_encoder_helper_funcs exynos_encoder_helper_funcs = {
.mode_fixup = exynos_drm_encoder_mode_fixup,
.mode_set = exynos_drm_encoder_mode_set,
.enable = exynos_drm_encoder_enable,
.disable = exynos_drm_encoder_disable,
};
static struct drm_encoder_funcs exynos_encoder_funcs = {
.destroy = drm_encoder_cleanup,
};
void exynos_drm_encoder_setup(struct drm_device *dev)
{
struct drm_encoder *encoder;
unsigned int clone_mask = 0;
int cnt = 0;
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
clone_mask |= (1 << (cnt++));
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
encoder->possible_clones = clone_mask;
}
int exynos_drm_encoder_create(struct drm_device *dev,
struct exynos_drm_encoder *exynos_encoder,
unsigned long possible_crtcs)
{
struct drm_encoder *encoder;
if (!possible_crtcs)
return -EINVAL;
encoder = &exynos_encoder->base;
encoder->possible_crtcs = possible_crtcs;
DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs);
drm_encoder_init(dev, encoder, &exynos_encoder_funcs,
DRM_MODE_ENCODER_TMDS);
drm_encoder_helper_add(encoder, &exynos_encoder_helper_funcs);
DRM_DEBUG_KMS("encoder has been created\n");
return 0;
}
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