mirror of https://gitee.com/openkylin/linux.git
629 lines
15 KiB
C
629 lines
15 KiB
C
/*
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* Copyright (c) 2011 Samsung Electronics Co., Ltd.
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* Authors:
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* Inki Dae <inki.dae@samsung.com>
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* Joonyoung Shim <jy0922.shim@samsung.com>
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* Seung-Woo Kim <sw0312.kim@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/pm_runtime.h>
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#include <drm/drmP.h>
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#include <drm/drm_crtc_helper.h>
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#include <linux/anon_inodes.h>
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#include <drm/exynos_drm.h>
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#include "exynos_drm_drv.h"
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#include "exynos_drm_crtc.h"
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#include "exynos_drm_encoder.h"
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#include "exynos_drm_fbdev.h"
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#include "exynos_drm_fb.h"
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#include "exynos_drm_gem.h"
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#include "exynos_drm_plane.h"
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#include "exynos_drm_vidi.h"
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#include "exynos_drm_dmabuf.h"
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#include "exynos_drm_g2d.h"
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#include "exynos_drm_ipp.h"
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#include "exynos_drm_iommu.h"
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#define DRIVER_NAME "exynos"
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#define DRIVER_DESC "Samsung SoC DRM"
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#define DRIVER_DATE "20110530"
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#define DRIVER_MAJOR 1
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#define DRIVER_MINOR 0
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#define VBLANK_OFF_DELAY 50000
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/* platform device pointer for eynos drm device. */
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static struct platform_device *exynos_drm_pdev;
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static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
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{
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struct exynos_drm_private *private;
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int ret;
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int nr;
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private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
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if (!private)
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return -ENOMEM;
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INIT_LIST_HEAD(&private->pageflip_event_list);
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dev_set_drvdata(dev->dev, dev);
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dev->dev_private = (void *)private;
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/*
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* create mapping to manage iommu table and set a pointer to iommu
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* mapping structure to iommu_mapping of private data.
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* also this iommu_mapping can be used to check if iommu is supported
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* or not.
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*/
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ret = drm_create_iommu_mapping(dev);
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if (ret < 0) {
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DRM_ERROR("failed to create iommu mapping.\n");
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goto err_free_private;
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}
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drm_mode_config_init(dev);
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exynos_drm_mode_config_init(dev);
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ret = exynos_drm_initialize_managers(dev);
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if (ret)
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goto err_mode_config_cleanup;
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for (nr = 0; nr < MAX_PLANE; nr++) {
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struct drm_plane *plane;
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unsigned long possible_crtcs = (1 << MAX_CRTC) - 1;
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plane = exynos_plane_init(dev, possible_crtcs, false);
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if (!plane)
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goto err_manager_cleanup;
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}
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ret = exynos_drm_initialize_displays(dev);
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if (ret)
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goto err_manager_cleanup;
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/* init kms poll for handling hpd */
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drm_kms_helper_poll_init(dev);
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ret = drm_vblank_init(dev, MAX_CRTC);
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if (ret)
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goto err_display_cleanup;
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/*
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* probe sub drivers such as display controller and hdmi driver,
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* that were registered at probe() of platform driver
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* to the sub driver and create encoder and connector for them.
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*/
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ret = exynos_drm_device_register(dev);
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if (ret)
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goto err_vblank;
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/* setup possible_clones. */
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exynos_drm_encoder_setup(dev);
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drm_vblank_offdelay = VBLANK_OFF_DELAY;
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platform_set_drvdata(dev->platformdev, dev);
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/* force connectors detection */
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drm_helper_hpd_irq_event(dev);
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return 0;
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err_vblank:
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drm_vblank_cleanup(dev);
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err_display_cleanup:
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exynos_drm_remove_displays(dev);
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err_manager_cleanup:
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exynos_drm_remove_managers(dev);
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err_mode_config_cleanup:
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drm_mode_config_cleanup(dev);
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drm_release_iommu_mapping(dev);
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err_free_private:
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kfree(private);
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return ret;
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}
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static int exynos_drm_unload(struct drm_device *dev)
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{
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exynos_drm_fbdev_fini(dev);
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exynos_drm_device_unregister(dev);
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drm_vblank_cleanup(dev);
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drm_kms_helper_poll_fini(dev);
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exynos_drm_remove_displays(dev);
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exynos_drm_remove_managers(dev);
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drm_mode_config_cleanup(dev);
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drm_release_iommu_mapping(dev);
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kfree(dev->dev_private);
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dev->dev_private = NULL;
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return 0;
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}
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static const struct file_operations exynos_drm_gem_fops = {
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.mmap = exynos_drm_gem_mmap_buffer,
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};
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static int exynos_drm_suspend(struct drm_device *dev, pm_message_t state)
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{
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struct drm_connector *connector;
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drm_modeset_lock_all(dev);
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list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
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int old_dpms = connector->dpms;
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if (connector->funcs->dpms)
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connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF);
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/* Set the old mode back to the connector for resume */
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connector->dpms = old_dpms;
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}
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drm_modeset_unlock_all(dev);
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return 0;
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}
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static int exynos_drm_resume(struct drm_device *dev)
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{
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struct drm_connector *connector;
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drm_modeset_lock_all(dev);
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list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
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if (connector->funcs->dpms)
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connector->funcs->dpms(connector, connector->dpms);
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}
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drm_helper_resume_force_mode(dev);
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drm_modeset_unlock_all(dev);
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return 0;
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}
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static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
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{
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struct drm_exynos_file_private *file_priv;
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struct file *anon_filp;
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int ret;
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file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
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if (!file_priv)
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return -ENOMEM;
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file->driver_priv = file_priv;
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ret = exynos_drm_subdrv_open(dev, file);
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if (ret)
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goto err_file_priv_free;
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anon_filp = anon_inode_getfile("exynos_gem", &exynos_drm_gem_fops,
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NULL, 0);
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if (IS_ERR(anon_filp)) {
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ret = PTR_ERR(anon_filp);
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goto err_subdrv_close;
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}
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anon_filp->f_mode = FMODE_READ | FMODE_WRITE;
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file_priv->anon_filp = anon_filp;
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return ret;
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err_subdrv_close:
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exynos_drm_subdrv_close(dev, file);
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err_file_priv_free:
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kfree(file_priv);
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file->driver_priv = NULL;
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return ret;
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}
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static void exynos_drm_preclose(struct drm_device *dev,
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struct drm_file *file)
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{
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exynos_drm_subdrv_close(dev, file);
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}
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static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
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{
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struct exynos_drm_private *private = dev->dev_private;
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struct drm_exynos_file_private *file_priv;
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struct drm_pending_vblank_event *v, *vt;
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struct drm_pending_event *e, *et;
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unsigned long flags;
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if (!file->driver_priv)
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return;
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/* Release all events not unhandled by page flip handler. */
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spin_lock_irqsave(&dev->event_lock, flags);
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list_for_each_entry_safe(v, vt, &private->pageflip_event_list,
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base.link) {
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if (v->base.file_priv == file) {
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list_del(&v->base.link);
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drm_vblank_put(dev, v->pipe);
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v->base.destroy(&v->base);
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}
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}
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/* Release all events handled by page flip handler but not freed. */
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list_for_each_entry_safe(e, et, &file->event_list, link) {
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list_del(&e->link);
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e->destroy(e);
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}
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spin_unlock_irqrestore(&dev->event_lock, flags);
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file_priv = file->driver_priv;
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if (file_priv->anon_filp)
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fput(file_priv->anon_filp);
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kfree(file->driver_priv);
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file->driver_priv = NULL;
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}
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static void exynos_drm_lastclose(struct drm_device *dev)
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{
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exynos_drm_fbdev_restore_mode(dev);
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}
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static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
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.fault = exynos_drm_gem_fault,
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.open = drm_gem_vm_open,
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.close = drm_gem_vm_close,
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};
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static const struct drm_ioctl_desc exynos_ioctls[] = {
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DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
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DRM_UNLOCKED | DRM_AUTH),
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DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
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exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
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DRM_AUTH),
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DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
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exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
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DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
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exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
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DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
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vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
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DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
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exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
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DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
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exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
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DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
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exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
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DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY,
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exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH),
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DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY,
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exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH),
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DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF,
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exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH),
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DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL,
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exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED | DRM_AUTH),
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};
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static const struct file_operations exynos_drm_driver_fops = {
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.owner = THIS_MODULE,
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.open = drm_open,
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.mmap = exynos_drm_gem_mmap,
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.poll = drm_poll,
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.read = drm_read,
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.unlocked_ioctl = drm_ioctl,
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#ifdef CONFIG_COMPAT
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.compat_ioctl = drm_compat_ioctl,
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#endif
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.release = drm_release,
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};
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static struct drm_driver exynos_drm_driver = {
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.driver_features = DRIVER_HAVE_IRQ | DRIVER_MODESET |
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DRIVER_GEM | DRIVER_PRIME,
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.load = exynos_drm_load,
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.unload = exynos_drm_unload,
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.suspend = exynos_drm_suspend,
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.resume = exynos_drm_resume,
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.open = exynos_drm_open,
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.preclose = exynos_drm_preclose,
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.lastclose = exynos_drm_lastclose,
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.postclose = exynos_drm_postclose,
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.get_vblank_counter = drm_vblank_count,
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.enable_vblank = exynos_drm_crtc_enable_vblank,
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.disable_vblank = exynos_drm_crtc_disable_vblank,
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.gem_free_object = exynos_drm_gem_free_object,
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.gem_vm_ops = &exynos_drm_gem_vm_ops,
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.dumb_create = exynos_drm_gem_dumb_create,
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.dumb_map_offset = exynos_drm_gem_dumb_map_offset,
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.dumb_destroy = drm_gem_dumb_destroy,
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.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
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.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
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.gem_prime_export = exynos_dmabuf_prime_export,
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.gem_prime_import = exynos_dmabuf_prime_import,
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.ioctls = exynos_ioctls,
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.num_ioctls = ARRAY_SIZE(exynos_ioctls),
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.fops = &exynos_drm_driver_fops,
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.name = DRIVER_NAME,
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.desc = DRIVER_DESC,
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.date = DRIVER_DATE,
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.major = DRIVER_MAJOR,
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.minor = DRIVER_MINOR,
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};
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static int exynos_drm_platform_probe(struct platform_device *pdev)
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{
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int ret;
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ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
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if (ret)
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return ret;
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pm_runtime_enable(&pdev->dev);
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pm_runtime_get_sync(&pdev->dev);
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return drm_platform_init(&exynos_drm_driver, pdev);
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}
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static int exynos_drm_platform_remove(struct platform_device *pdev)
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{
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drm_put_dev(platform_get_drvdata(pdev));
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return 0;
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}
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#ifdef CONFIG_PM_SLEEP
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static int exynos_drm_sys_suspend(struct device *dev)
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{
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struct drm_device *drm_dev = dev_get_drvdata(dev);
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pm_message_t message;
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if (pm_runtime_suspended(dev))
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return 0;
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message.event = PM_EVENT_SUSPEND;
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return exynos_drm_suspend(drm_dev, message);
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}
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static int exynos_drm_sys_resume(struct device *dev)
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{
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struct drm_device *drm_dev = dev_get_drvdata(dev);
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if (pm_runtime_suspended(dev))
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return 0;
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return exynos_drm_resume(drm_dev);
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}
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#endif
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#ifdef CONFIG_PM_RUNTIME
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static int exynos_drm_runtime_suspend(struct device *dev)
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{
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struct drm_device *drm_dev = dev_get_drvdata(dev);
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pm_message_t message;
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if (pm_runtime_suspended(dev))
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return 0;
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message.event = PM_EVENT_SUSPEND;
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return exynos_drm_suspend(drm_dev, message);
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}
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static int exynos_drm_runtime_resume(struct device *dev)
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{
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struct drm_device *drm_dev = dev_get_drvdata(dev);
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|
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if (!pm_runtime_suspended(dev))
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return 0;
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return exynos_drm_resume(drm_dev);
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}
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#endif
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static const struct dev_pm_ops exynos_drm_pm_ops = {
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SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_sys_suspend, exynos_drm_sys_resume)
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SET_RUNTIME_PM_OPS(exynos_drm_runtime_suspend,
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exynos_drm_runtime_resume, NULL)
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};
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|
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static struct platform_driver exynos_drm_platform_driver = {
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.probe = exynos_drm_platform_probe,
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.remove = exynos_drm_platform_remove,
|
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.driver = {
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.owner = THIS_MODULE,
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.name = "exynos-drm",
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.pm = &exynos_drm_pm_ops,
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},
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};
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|
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static int __init exynos_drm_init(void)
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{
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int ret;
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|
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#ifdef CONFIG_DRM_EXYNOS_DP
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ret = platform_driver_register(&dp_driver);
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if (ret < 0)
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goto out_dp;
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#endif
|
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|
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#ifdef CONFIG_DRM_EXYNOS_FIMD
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ret = platform_driver_register(&fimd_driver);
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if (ret < 0)
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goto out_fimd;
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#endif
|
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|
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#ifdef CONFIG_DRM_EXYNOS_HDMI
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ret = platform_driver_register(&hdmi_driver);
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if (ret < 0)
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goto out_hdmi;
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ret = platform_driver_register(&mixer_driver);
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if (ret < 0)
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goto out_mixer;
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#endif
|
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|
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#ifdef CONFIG_DRM_EXYNOS_VIDI
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ret = platform_driver_register(&vidi_driver);
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if (ret < 0)
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goto out_vidi;
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#endif
|
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|
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#ifdef CONFIG_DRM_EXYNOS_G2D
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ret = platform_driver_register(&g2d_driver);
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if (ret < 0)
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goto out_g2d;
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#endif
|
|
|
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#ifdef CONFIG_DRM_EXYNOS_FIMC
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ret = platform_driver_register(&fimc_driver);
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if (ret < 0)
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goto out_fimc;
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#endif
|
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|
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#ifdef CONFIG_DRM_EXYNOS_ROTATOR
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ret = platform_driver_register(&rotator_driver);
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if (ret < 0)
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goto out_rotator;
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#endif
|
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|
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#ifdef CONFIG_DRM_EXYNOS_GSC
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ret = platform_driver_register(&gsc_driver);
|
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if (ret < 0)
|
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goto out_gsc;
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_IPP
|
|
ret = platform_driver_register(&ipp_driver);
|
|
if (ret < 0)
|
|
goto out_ipp;
|
|
|
|
ret = exynos_platform_device_ipp_register();
|
|
if (ret < 0)
|
|
goto out_ipp_dev;
|
|
#endif
|
|
|
|
ret = platform_driver_register(&exynos_drm_platform_driver);
|
|
if (ret < 0)
|
|
goto out_drm;
|
|
|
|
exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
|
|
NULL, 0);
|
|
if (IS_ERR(exynos_drm_pdev)) {
|
|
ret = PTR_ERR(exynos_drm_pdev);
|
|
goto out;
|
|
}
|
|
|
|
return 0;
|
|
|
|
out:
|
|
platform_driver_unregister(&exynos_drm_platform_driver);
|
|
|
|
out_drm:
|
|
#ifdef CONFIG_DRM_EXYNOS_IPP
|
|
exynos_platform_device_ipp_unregister();
|
|
out_ipp_dev:
|
|
platform_driver_unregister(&ipp_driver);
|
|
out_ipp:
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_GSC
|
|
platform_driver_unregister(&gsc_driver);
|
|
out_gsc:
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_ROTATOR
|
|
platform_driver_unregister(&rotator_driver);
|
|
out_rotator:
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_FIMC
|
|
platform_driver_unregister(&fimc_driver);
|
|
out_fimc:
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_G2D
|
|
platform_driver_unregister(&g2d_driver);
|
|
out_g2d:
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_VIDI
|
|
platform_driver_unregister(&vidi_driver);
|
|
out_vidi:
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_HDMI
|
|
platform_driver_unregister(&mixer_driver);
|
|
out_mixer:
|
|
platform_driver_unregister(&hdmi_driver);
|
|
out_hdmi:
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_FIMD
|
|
platform_driver_unregister(&fimd_driver);
|
|
out_fimd:
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_DP
|
|
platform_driver_unregister(&dp_driver);
|
|
out_dp:
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
static void __exit exynos_drm_exit(void)
|
|
{
|
|
platform_device_unregister(exynos_drm_pdev);
|
|
|
|
platform_driver_unregister(&exynos_drm_platform_driver);
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_IPP
|
|
exynos_platform_device_ipp_unregister();
|
|
platform_driver_unregister(&ipp_driver);
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_GSC
|
|
platform_driver_unregister(&gsc_driver);
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_ROTATOR
|
|
platform_driver_unregister(&rotator_driver);
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_FIMC
|
|
platform_driver_unregister(&fimc_driver);
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_G2D
|
|
platform_driver_unregister(&g2d_driver);
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_HDMI
|
|
platform_driver_unregister(&mixer_driver);
|
|
platform_driver_unregister(&hdmi_driver);
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_VIDI
|
|
platform_driver_unregister(&vidi_driver);
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_FIMD
|
|
platform_driver_unregister(&fimd_driver);
|
|
#endif
|
|
|
|
#ifdef CONFIG_DRM_EXYNOS_DP
|
|
platform_driver_unregister(&dp_driver);
|
|
#endif
|
|
}
|
|
|
|
module_init(exynos_drm_init);
|
|
module_exit(exynos_drm_exit);
|
|
|
|
MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
|
|
MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
|
|
MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
|
|
MODULE_DESCRIPTION("Samsung SoC DRM Driver");
|
|
MODULE_LICENSE("GPL");
|