/* * Copyright (c) 2011 Samsung Electronics Co., Ltd. * Authors: * Inki Dae * Joonyoung Shim * Seung-Woo Kim * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ #include "drmP.h" #include "drm.h" #include "drm_crtc_helper.h" #include #include "exynos_drm_drv.h" #include "exynos_drm_crtc.h" #include "exynos_drm_fbdev.h" #include "exynos_drm_fb.h" #include "exynos_drm_gem.h" #include "exynos_drm_plane.h" #define DRIVER_NAME "exynos" #define DRIVER_DESC "Samsung SoC DRM" #define DRIVER_DATE "20110530" #define DRIVER_MAJOR 1 #define DRIVER_MINOR 0 static int exynos_drm_load(struct drm_device *dev, unsigned long flags) { struct exynos_drm_private *private; int ret; int nr; DRM_DEBUG_DRIVER("%s\n", __FILE__); private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL); if (!private) { DRM_ERROR("failed to allocate private\n"); return -ENOMEM; } INIT_LIST_HEAD(&private->pageflip_event_list); dev->dev_private = (void *)private; 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_crtc; } for (nr = 0; nr < MAX_PLANE; nr++) { ret = exynos_plane_init(dev, nr); if (ret) goto err_crtc; } ret = drm_vblank_init(dev, MAX_CRTC); if (ret) goto err_crtc; /* * 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; /* * 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; } return 0; err_drm_device: exynos_drm_device_unregister(dev); err_vblank: drm_vblank_cleanup(dev); err_crtc: drm_mode_config_cleanup(dev); kfree(private); return ret; } static int exynos_drm_unload(struct drm_device *dev) { DRM_DEBUG_DRIVER("%s\n", __FILE__); 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); kfree(dev->dev_private); dev->dev_private = NULL; return 0; } static void exynos_drm_preclose(struct drm_device *dev, struct drm_file *file_priv) { struct exynos_drm_private *dev_priv = dev->dev_private; /* * drm framework frees all events at release time, * so private event list should be cleared. */ if (!list_empty(&dev_priv->pageflip_event_list)) INIT_LIST_HEAD(&dev_priv->pageflip_event_list); } static void exynos_drm_lastclose(struct drm_device *dev) { DRM_DEBUG_DRIVER("%s\n", __FILE__); exynos_drm_fbdev_restore_mode(dev); } static 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 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_PLANE_SET_ZPOS, exynos_plane_set_zpos_ioctl, 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, .release = drm_release, }; static struct drm_driver exynos_drm_driver = { .driver_features = DRIVER_HAVE_IRQ | DRIVER_BUS_PLATFORM | DRIVER_MODESET | DRIVER_GEM, .load = exynos_drm_load, .unload = exynos_drm_unload, .preclose = exynos_drm_preclose, .lastclose = exynos_drm_lastclose, .get_vblank_counter = drm_vblank_count, .enable_vblank = exynos_drm_crtc_enable_vblank, .disable_vblank = exynos_drm_crtc_disable_vblank, .gem_init_object = exynos_drm_gem_init_object, .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 = exynos_drm_gem_dumb_destroy, .ioctls = 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) { DRM_DEBUG_DRIVER("%s\n", __FILE__); exynos_drm_driver.num_ioctls = DRM_ARRAY_SIZE(exynos_ioctls); return drm_platform_init(&exynos_drm_driver, pdev); } static int exynos_drm_platform_remove(struct platform_device *pdev) { DRM_DEBUG_DRIVER("%s\n", __FILE__); drm_platform_exit(&exynos_drm_driver, pdev); return 0; } static struct platform_driver exynos_drm_platform_driver = { .probe = exynos_drm_platform_probe, .remove = __devexit_p(exynos_drm_platform_remove), .driver = { .owner = THIS_MODULE, .name = DRIVER_NAME, }, }; static int __init exynos_drm_init(void) { DRM_DEBUG_DRIVER("%s\n", __FILE__); return platform_driver_register(&exynos_drm_platform_driver); } static void __exit exynos_drm_exit(void) { DRM_DEBUG_DRIVER("%s\n", __FILE__); platform_driver_unregister(&exynos_drm_platform_driver); } 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");