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path: root/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
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Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_hdmi.c')
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_hdmi.c439
1 files changed, 0 insertions, 439 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
deleted file mode 100644
index 8548b974bd59..000000000000
--- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
+++ /dev/null
@@ -1,439 +0,0 @@
-/*
- * Copyright (C) 2011 Samsung Electronics Co.Ltd
- * Authors:
- * Inki Dae <inki.dae@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 <linux/kernel.h>
-#include <linux/wait.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-
-#include <drm/exynos_drm.h>
-
-#include "exynos_drm_drv.h"
-#include "exynos_drm_hdmi.h"
-
-#define to_context(dev) platform_get_drvdata(to_platform_device(dev))
-#define to_subdrv(dev) to_context(dev)
-#define get_ctx_from_subdrv(subdrv) container_of(subdrv,\
- struct drm_hdmi_context, subdrv);
-
-/* platform device pointer for common drm hdmi device. */
-static struct platform_device *exynos_drm_hdmi_pdev;
-
-/* Common hdmi subdrv needs to access the hdmi and mixer though context.
-* These should be initialied by the repective drivers */
-static struct exynos_drm_hdmi_context *hdmi_ctx;
-static struct exynos_drm_hdmi_context *mixer_ctx;
-
-/* these callback points shoud be set by specific drivers. */
-static struct exynos_hdmi_ops *hdmi_ops;
-static struct exynos_mixer_ops *mixer_ops;
-
-struct drm_hdmi_context {
- struct exynos_drm_subdrv subdrv;
- struct exynos_drm_hdmi_context *hdmi_ctx;
- struct exynos_drm_hdmi_context *mixer_ctx;
-
- bool enabled[MIXER_WIN_NR];
-};
-
-int exynos_platform_device_hdmi_register(void)
-{
- struct platform_device *pdev;
-
- if (exynos_drm_hdmi_pdev)
- return -EEXIST;
-
- pdev = platform_device_register_simple(
- "exynos-drm-hdmi", -1, NULL, 0);
- if (IS_ERR(pdev))
- return PTR_ERR(pdev);
-
- exynos_drm_hdmi_pdev = pdev;
-
- return 0;
-}
-
-void exynos_platform_device_hdmi_unregister(void)
-{
- if (exynos_drm_hdmi_pdev) {
- platform_device_unregister(exynos_drm_hdmi_pdev);
- exynos_drm_hdmi_pdev = NULL;
- }
-}
-
-void exynos_hdmi_drv_attach(struct exynos_drm_hdmi_context *ctx)
-{
- if (ctx)
- hdmi_ctx = ctx;
-}
-
-void exynos_mixer_drv_attach(struct exynos_drm_hdmi_context *ctx)
-{
- if (ctx)
- mixer_ctx = ctx;
-}
-
-void exynos_hdmi_ops_register(struct exynos_hdmi_ops *ops)
-{
- if (ops)
- hdmi_ops = ops;
-}
-
-void exynos_mixer_ops_register(struct exynos_mixer_ops *ops)
-{
- if (ops)
- mixer_ops = ops;
-}
-
-static bool drm_hdmi_is_connected(struct device *dev)
-{
- struct drm_hdmi_context *ctx = to_context(dev);
-
- if (hdmi_ops && hdmi_ops->is_connected)
- return hdmi_ops->is_connected(ctx->hdmi_ctx->ctx);
-
- return false;
-}
-
-static struct edid *drm_hdmi_get_edid(struct device *dev,
- struct drm_connector *connector)
-{
- struct drm_hdmi_context *ctx = to_context(dev);
-
- if (hdmi_ops && hdmi_ops->get_edid)
- return hdmi_ops->get_edid(ctx->hdmi_ctx->ctx, connector);
-
- return NULL;
-}
-
-static int drm_hdmi_check_mode(struct device *dev,
- struct drm_display_mode *mode)
-{
- struct drm_hdmi_context *ctx = to_context(dev);
- int ret = 0;
-
- /*
- * Both, mixer and hdmi should be able to handle the requested mode.
- * If any of the two fails, return mode as BAD.
- */
-
- if (mixer_ops && mixer_ops->check_mode)
- ret = mixer_ops->check_mode(ctx->mixer_ctx->ctx, mode);
-
- if (ret)
- return ret;
-
- if (hdmi_ops && hdmi_ops->check_mode)
- return hdmi_ops->check_mode(ctx->hdmi_ctx->ctx, mode);
-
- return 0;
-}
-
-static int drm_hdmi_power_on(struct device *dev, int mode)
-{
- struct drm_hdmi_context *ctx = to_context(dev);
-
- if (hdmi_ops && hdmi_ops->power_on)
- return hdmi_ops->power_on(ctx->hdmi_ctx->ctx, mode);
-
- return 0;
-}
-
-static struct exynos_drm_display_ops drm_hdmi_display_ops = {
- .type = EXYNOS_DISPLAY_TYPE_HDMI,
- .is_connected = drm_hdmi_is_connected,
- .get_edid = drm_hdmi_get_edid,
- .check_mode = drm_hdmi_check_mode,
- .power_on = drm_hdmi_power_on,
-};
-
-static int drm_hdmi_enable_vblank(struct device *subdrv_dev)
-{
- struct drm_hdmi_context *ctx = to_context(subdrv_dev);
- struct exynos_drm_subdrv *subdrv = &ctx->subdrv;
- struct exynos_drm_manager *manager = subdrv->manager;
-
- if (mixer_ops && mixer_ops->enable_vblank)
- return mixer_ops->enable_vblank(ctx->mixer_ctx->ctx,
- manager->pipe);
-
- return 0;
-}
-
-static void drm_hdmi_disable_vblank(struct device *subdrv_dev)
-{
- struct drm_hdmi_context *ctx = to_context(subdrv_dev);
-
- if (mixer_ops && mixer_ops->disable_vblank)
- return mixer_ops->disable_vblank(ctx->mixer_ctx->ctx);
-}
-
-static void drm_hdmi_wait_for_vblank(struct device *subdrv_dev)
-{
- struct drm_hdmi_context *ctx = to_context(subdrv_dev);
-
- if (mixer_ops && mixer_ops->wait_for_vblank)
- mixer_ops->wait_for_vblank(ctx->mixer_ctx->ctx);
-}
-
-static void drm_hdmi_mode_fixup(struct device *subdrv_dev,
- struct drm_connector *connector,
- const struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
-{
- struct drm_display_mode *m;
- int mode_ok;
-
- drm_mode_set_crtcinfo(adjusted_mode, 0);
-
- mode_ok = drm_hdmi_check_mode(subdrv_dev, adjusted_mode);
-
- /* just return if user desired mode exists. */
- if (mode_ok == 0)
- return;
-
- /*
- * otherwise, find the most suitable mode among modes and change it
- * to adjusted_mode.
- */
- list_for_each_entry(m, &connector->modes, head) {
- mode_ok = drm_hdmi_check_mode(subdrv_dev, m);
-
- if (mode_ok == 0) {
- struct drm_mode_object base;
- struct list_head head;
-
- DRM_INFO("desired mode doesn't exist so\n");
- DRM_INFO("use the most suitable mode among modes.\n");
-
- DRM_DEBUG_KMS("Adjusted Mode: [%d]x[%d] [%d]Hz\n",
- m->hdisplay, m->vdisplay, m->vrefresh);
-
- /* preserve display mode header while copying. */
- head = adjusted_mode->head;
- base = adjusted_mode->base;
- memcpy(adjusted_mode, m, sizeof(*m));
- adjusted_mode->head = head;
- adjusted_mode->base = base;
- break;
- }
- }
-}
-
-static void drm_hdmi_mode_set(struct device *subdrv_dev, void *mode)
-{
- struct drm_hdmi_context *ctx = to_context(subdrv_dev);
-
- if (hdmi_ops && hdmi_ops->mode_set)
- hdmi_ops->mode_set(ctx->hdmi_ctx->ctx, mode);
-}
-
-static void drm_hdmi_get_max_resol(struct device *subdrv_dev,
- unsigned int *width, unsigned int *height)
-{
- struct drm_hdmi_context *ctx = to_context(subdrv_dev);
-
- if (hdmi_ops && hdmi_ops->get_max_resol)
- hdmi_ops->get_max_resol(ctx->hdmi_ctx->ctx, width, height);
-}
-
-static void drm_hdmi_commit(struct device *subdrv_dev)
-{
- struct drm_hdmi_context *ctx = to_context(subdrv_dev);
-
- if (hdmi_ops && hdmi_ops->commit)
- hdmi_ops->commit(ctx->hdmi_ctx->ctx);
-}
-
-static void drm_hdmi_dpms(struct device *subdrv_dev, int mode)
-{
- struct drm_hdmi_context *ctx = to_context(subdrv_dev);
-
- if (mixer_ops && mixer_ops->dpms)
- mixer_ops->dpms(ctx->mixer_ctx->ctx, mode);
-
- if (hdmi_ops && hdmi_ops->dpms)
- hdmi_ops->dpms(ctx->hdmi_ctx->ctx, mode);
-}
-
-static void drm_hdmi_apply(struct device *subdrv_dev)
-{
- struct drm_hdmi_context *ctx = to_context(subdrv_dev);
- int i;
-
- for (i = 0; i < MIXER_WIN_NR; i++) {
- if (!ctx->enabled[i])
- continue;
- if (mixer_ops && mixer_ops->win_commit)
- mixer_ops->win_commit(ctx->mixer_ctx->ctx, i);
- }
-
- if (hdmi_ops && hdmi_ops->commit)
- hdmi_ops->commit(ctx->hdmi_ctx->ctx);
-}
-
-static struct exynos_drm_manager_ops drm_hdmi_manager_ops = {
- .dpms = drm_hdmi_dpms,
- .apply = drm_hdmi_apply,
- .enable_vblank = drm_hdmi_enable_vblank,
- .disable_vblank = drm_hdmi_disable_vblank,
- .wait_for_vblank = drm_hdmi_wait_for_vblank,
- .mode_fixup = drm_hdmi_mode_fixup,
- .mode_set = drm_hdmi_mode_set,
- .get_max_resol = drm_hdmi_get_max_resol,
- .commit = drm_hdmi_commit,
-};
-
-static void drm_mixer_mode_set(struct device *subdrv_dev,
- struct exynos_drm_overlay *overlay)
-{
- struct drm_hdmi_context *ctx = to_context(subdrv_dev);
-
- if (mixer_ops && mixer_ops->win_mode_set)
- mixer_ops->win_mode_set(ctx->mixer_ctx->ctx, overlay);
-}
-
-static void drm_mixer_commit(struct device *subdrv_dev, int zpos)
-{
- struct drm_hdmi_context *ctx = to_context(subdrv_dev);
- int win = (zpos == DEFAULT_ZPOS) ? MIXER_DEFAULT_WIN : zpos;
-
- if (win < 0 || win >= MIXER_WIN_NR) {
- DRM_ERROR("mixer window[%d] is wrong\n", win);
- return;
- }
-
- if (mixer_ops && mixer_ops->win_commit)
- mixer_ops->win_commit(ctx->mixer_ctx->ctx, win);
-
- ctx->enabled[win] = true;
-}
-
-static void drm_mixer_disable(struct device *subdrv_dev, int zpos)
-{
- struct drm_hdmi_context *ctx = to_context(subdrv_dev);
- int win = (zpos == DEFAULT_ZPOS) ? MIXER_DEFAULT_WIN : zpos;
-
- if (win < 0 || win >= MIXER_WIN_NR) {
- DRM_ERROR("mixer window[%d] is wrong\n", win);
- return;
- }
-
- if (mixer_ops && mixer_ops->win_disable)
- mixer_ops->win_disable(ctx->mixer_ctx->ctx, win);
-
- ctx->enabled[win] = false;
-}
-
-static struct exynos_drm_overlay_ops drm_hdmi_overlay_ops = {
- .mode_set = drm_mixer_mode_set,
- .commit = drm_mixer_commit,
- .disable = drm_mixer_disable,
-};
-
-static struct exynos_drm_manager hdmi_manager = {
- .pipe = -1,
- .ops = &drm_hdmi_manager_ops,
- .overlay_ops = &drm_hdmi_overlay_ops,
- .display_ops = &drm_hdmi_display_ops,
-};
-
-static int hdmi_subdrv_probe(struct drm_device *drm_dev,
- struct device *dev)
-{
- struct exynos_drm_subdrv *subdrv = to_subdrv(dev);
- struct drm_hdmi_context *ctx;
-
- if (!hdmi_ctx) {
- DRM_ERROR("hdmi context not initialized.\n");
- return -EFAULT;
- }
-
- if (!mixer_ctx) {
- DRM_ERROR("mixer context not initialized.\n");
- return -EFAULT;
- }
-
- ctx = get_ctx_from_subdrv(subdrv);
-
- if (!ctx) {
- DRM_ERROR("no drm hdmi context.\n");
- return -EFAULT;
- }
-
- ctx->hdmi_ctx = hdmi_ctx;
- ctx->mixer_ctx = mixer_ctx;
-
- ctx->hdmi_ctx->drm_dev = drm_dev;
- ctx->mixer_ctx->drm_dev = drm_dev;
-
- if (mixer_ops->iommu_on)
- mixer_ops->iommu_on(ctx->mixer_ctx->ctx, true);
-
- return 0;
-}
-
-static void hdmi_subdrv_remove(struct drm_device *drm_dev, struct device *dev)
-{
- struct drm_hdmi_context *ctx;
- struct exynos_drm_subdrv *subdrv = to_subdrv(dev);
-
- ctx = get_ctx_from_subdrv(subdrv);
-
- if (mixer_ops->iommu_on)
- mixer_ops->iommu_on(ctx->mixer_ctx->ctx, false);
-}
-
-static int exynos_drm_hdmi_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct exynos_drm_subdrv *subdrv;
- struct drm_hdmi_context *ctx;
-
- ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
- if (!ctx)
- return -ENOMEM;
-
- subdrv = &ctx->subdrv;
-
- subdrv->dev = dev;
- subdrv->manager = &hdmi_manager;
- subdrv->probe = hdmi_subdrv_probe;
- subdrv->remove = hdmi_subdrv_remove;
-
- platform_set_drvdata(pdev, subdrv);
-
- exynos_drm_subdrv_register(subdrv);
-
- return 0;
-}
-
-static int exynos_drm_hdmi_remove(struct platform_device *pdev)
-{
- struct drm_hdmi_context *ctx = platform_get_drvdata(pdev);
-
- exynos_drm_subdrv_unregister(&ctx->subdrv);
-
- return 0;
-}
-
-struct platform_driver exynos_drm_common_hdmi_driver = {
- .probe = exynos_drm_hdmi_probe,
- .remove = exynos_drm_hdmi_remove,
- .driver = {
- .name = "exynos-drm-hdmi",
- .owner = THIS_MODULE,
- },
-};