diff options
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_hdmi.c')
-rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_hdmi.c | 439 |
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 8548b97..0000000 --- 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, - }, -}; |