/* * 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 "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->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_crtc; } drm_mode_config_init(dev); /* init kms poll for handling hpd */ drm_kms_helper_poll_init(dev); exynos_drm_mode_config_init(dev); /* * EXYNOS4 is enough to have two CRTCs and each crtc would be used * without dependency of hardware. */ for (nr = 0; nr < MAX_CRTC; nr++) { ret = exynos_drm_crtc_create(dev, nr); if (ret) goto err_release_iommu_mapping; } for (nr = 0; nr < MAX_PLANE; nr++) { struct drm_plane *plane; unsigned int possible_crtcs = (1 << MAX_CRTC) - 1; plane = exynos_plane_init(dev, possible_crtcs, false); if (!plane) goto err_release_iommu_mapping; } ret = drm_vblank_init(dev, MAX_CRTC); if (ret) goto err_release_iommu_mapping; /* * 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); /* * create and configure fb helper and also exynos specific * fbdev object. */ ret = exynos_drm_fbdev_init(dev); if (ret) { DRM_ERROR("failed to initialize drm fbdev\n"); goto err_drm_device; } drm_vblank_offdelay = VBLANK_OFF_DELAY; return 0; err_drm_device: exynos_drm_device_unregister(dev); err_vblank: drm_vblank_cleanup(dev); err_release_iommu_mapping: drm_release_iommu_mapping(dev); err_crtc: drm_mode_config_cleanup(dev); 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); drm_mode_config_cleanup(dev); drm_release_iommu_mapping(dev); kfree(dev->dev_private); dev->dev_private = NULL; return 0; } static int exynos_drm_open(struct drm_device *dev, struct drm_file *file) { struct drm_exynos_file_private *file_priv; 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) { kfree(file_priv); file->driver_priv = NULL; } return ret; } static void exynos_drm_preclose(struct drm_device *dev, struct drm_file *file) { struct exynos_drm_private *private = dev->dev_private; struct drm_pending_vblank_event *e, *t; unsigned long flags; /* release events of current file */ spin_lock_irqsave(&dev->event_lock, flags); list_for_each_entry_safe(e, t, &private->pageflip_event_list, base.link) { if (e->base.file_priv == file) { list_del(&e->base.link); e->base.destroy(&e->base); } } spin_unlock_irqrestore(&dev->event_lock, flags); exynos_drm_subdrv_close(dev, file); } static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file) { if (!file->driver_priv) return; 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, .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) { pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); return drm_platform_init(&exynos_drm_driver, pdev); } static int exynos_drm_platform_remove(struct platform_device *pdev) { drm_platform_exit(&exynos_drm_driver, pdev); return 0; } 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", }, }; static int __init exynos_drm_init(void) { int ret; #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; ret = platform_driver_register(&exynos_drm_common_hdmi_driver); if (ret < 0) goto out_common_hdmi; ret = exynos_platform_device_hdmi_register(); if (ret < 0) goto out_common_hdmi_dev; #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 exynos_platform_device_hdmi_unregister(); out_common_hdmi_dev: platform_driver_unregister(&exynos_drm_common_hdmi_driver); out_common_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 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 exynos_platform_device_hdmi_unregister(); platform_driver_unregister(&exynos_drm_common_hdmi_driver); 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 } 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");