+++ /dev/null
-/* 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"
-
-#define to_exynos_encoder(x) container_of(x, struct exynos_drm_encoder,\
- drm_encoder)
-
-/*
- * exynos specific encoder structure.
- *
- * @drm_encoder: encoder object.
- * @display: the display structure that maps to this encoder
- */
-struct exynos_drm_encoder {
- struct drm_encoder drm_encoder;
- struct exynos_drm_display *display;
-};
-
-static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
-{
- struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
- struct exynos_drm_display *display = exynos_encoder->display;
-
- DRM_DEBUG_KMS("encoder dpms: %d\n", mode);
-
- if (display->ops->dpms)
- display->ops->dpms(display, mode);
-}
-
-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 exynos_drm_display *display = exynos_encoder->display;
- struct drm_connector *connector;
-
- list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
- if (connector->encoder != encoder)
- continue;
-
- if (display->ops->mode_fixup)
- display->ops->mode_fixup(display, 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);
- struct exynos_drm_display *display = exynos_encoder->display;
-
- if (display->ops->mode_set)
- display->ops->mode_set(display, adjusted_mode);
-}
-
-static void exynos_drm_encoder_prepare(struct drm_encoder *encoder)
-{
- /* drm framework doesn't check NULL. */
-}
-
-static void exynos_drm_encoder_commit(struct drm_encoder *encoder)
-{
- struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
- struct exynos_drm_display *display = exynos_encoder->display;
-
- if (display->ops->dpms)
- display->ops->dpms(display, DRM_MODE_DPMS_ON);
-
- if (display->ops->commit)
- display->ops->commit(display);
-}
-
-static void exynos_drm_encoder_disable(struct drm_encoder *encoder)
-{
- struct drm_plane *plane;
- struct drm_device *dev = encoder->dev;
-
- exynos_drm_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
-
- /* all planes connected to this encoder should be also disabled. */
- drm_for_each_legacy_plane(plane, &dev->mode_config.plane_list) {
- if (plane->crtc && (plane->crtc == encoder->crtc))
- plane->funcs->disable_plane(plane);
- }
-}
-
-static struct drm_encoder_helper_funcs exynos_encoder_helper_funcs = {
- .dpms = exynos_drm_encoder_dpms,
- .mode_fixup = exynos_drm_encoder_mode_fixup,
- .mode_set = exynos_drm_encoder_mode_set,
- .prepare = exynos_drm_encoder_prepare,
- .commit = exynos_drm_encoder_commit,
- .disable = exynos_drm_encoder_disable,
-};
-
-static void exynos_drm_encoder_destroy(struct drm_encoder *encoder)
-{
- struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
-
- drm_encoder_cleanup(encoder);
- kfree(exynos_encoder);
-}
-
-static struct drm_encoder_funcs exynos_encoder_funcs = {
- .destroy = exynos_drm_encoder_destroy,
-};
-
-static unsigned int exynos_drm_encoder_clones(struct drm_encoder *encoder)
-{
- struct drm_encoder *clone;
- struct drm_device *dev = encoder->dev;
- struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
- struct exynos_drm_display *display = exynos_encoder->display;
- unsigned int clone_mask = 0;
- int cnt = 0;
-
- list_for_each_entry(clone, &dev->mode_config.encoder_list, head) {
- switch (display->type) {
- case EXYNOS_DISPLAY_TYPE_LCD:
- case EXYNOS_DISPLAY_TYPE_HDMI:
- case EXYNOS_DISPLAY_TYPE_VIDI:
- clone_mask |= (1 << (cnt++));
- break;
- default:
- continue;
- }
- }
-
- return clone_mask;
-}
-
-void exynos_drm_encoder_setup(struct drm_device *dev)
-{
- struct drm_encoder *encoder;
-
- list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
- encoder->possible_clones = exynos_drm_encoder_clones(encoder);
-}
-
-struct drm_encoder *
-exynos_drm_encoder_create(struct drm_device *dev,
- struct exynos_drm_display *display,
- unsigned long possible_crtcs)
-{
- struct drm_encoder *encoder;
- struct exynos_drm_encoder *exynos_encoder;
-
- if (!possible_crtcs)
- return NULL;
-
- exynos_encoder = kzalloc(sizeof(*exynos_encoder), GFP_KERNEL);
- if (!exynos_encoder)
- return NULL;
-
- exynos_encoder->display = display;
- encoder = &exynos_encoder->drm_encoder;
- 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 encoder;
-}
-
-struct exynos_drm_display *exynos_drm_get_display(struct drm_encoder *encoder)
-{
- return to_exynos_encoder(encoder)->display;
-}
Code Review / kvmfornfv.git / blobdiff