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