367 lines
9.1 KiB
C
367 lines
9.1 KiB
C
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/*
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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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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "drmP.h"
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#include "drm.h"
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#include "drm_crtc_helper.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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#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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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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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
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if (!private) {
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DRM_ERROR("failed to allocate private\n");
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return -ENOMEM;
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}
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INIT_LIST_HEAD(&private->pageflip_event_list);
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dev->dev_private = (void *)private;
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drm_mode_config_init(dev);
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/* init kms poll for handling hpd */
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drm_kms_helper_poll_init(dev);
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exynos_drm_mode_config_init(dev);
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/*
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* EXYNOS4 is enough to have two CRTCs and each crtc would be used
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* without dependency of hardware.
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*/
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for (nr = 0; nr < MAX_CRTC; nr++) {
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ret = exynos_drm_crtc_create(dev, nr);
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if (ret)
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goto err_crtc;
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}
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for (nr = 0; nr < MAX_PLANE; nr++) {
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ret = exynos_plane_init(dev, nr);
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if (ret)
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goto err_crtc;
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}
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ret = drm_vblank_init(dev, MAX_CRTC);
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if (ret)
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goto err_crtc;
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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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/*
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* create and configure fb helper and also exynos specific
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* fbdev object.
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*/
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ret = exynos_drm_fbdev_init(dev);
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if (ret) {
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DRM_ERROR("failed to initialize drm fbdev\n");
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goto err_drm_device;
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}
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drm_vblank_offdelay = VBLANK_OFF_DELAY;
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return 0;
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err_drm_device:
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exynos_drm_device_unregister(dev);
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err_vblank:
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drm_vblank_cleanup(dev);
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err_crtc:
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drm_mode_config_cleanup(dev);
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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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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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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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drm_mode_config_cleanup(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 int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
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{
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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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return exynos_drm_subdrv_open(dev, file);
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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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struct exynos_drm_private *private = dev->dev_private;
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struct drm_pending_vblank_event *e, *t;
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unsigned long flags;
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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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/* release events of current file */
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spin_lock_irqsave(&dev->event_lock, flags);
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list_for_each_entry_safe(e, t, &private->pageflip_event_list,
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base.link) {
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if (e->base.file_priv == file) {
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list_del(&e->base.link);
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e->base.destroy(&e->base);
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}
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}
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spin_unlock_irqrestore(&dev->event_lock, flags);
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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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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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if (!file->driver_priv)
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return;
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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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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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exynos_drm_fbdev_restore_mode(dev);
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}
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static 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 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_PLANE_SET_ZPOS, exynos_plane_set_zpos_ioctl,
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DRM_UNLOCKED | DRM_AUTH),
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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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};
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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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.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_BUS_PLATFORM |
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DRIVER_MODESET | DRIVER_GEM,
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.load = exynos_drm_load,
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.unload = exynos_drm_unload,
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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_init_object = exynos_drm_gem_init_object,
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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 = exynos_drm_gem_dumb_destroy,
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.ioctls = 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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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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exynos_drm_driver.num_ioctls = DRM_ARRAY_SIZE(exynos_ioctls);
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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_DEBUG_DRIVER("%s\n", __FILE__);
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drm_platform_exit(&exynos_drm_driver, pdev);
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return 0;
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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 = __devexit_p(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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},
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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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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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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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#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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ret = platform_driver_register(&exynos_drm_common_hdmi_driver);
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if (ret < 0)
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goto out_common_hdmi;
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#endif
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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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ret = platform_driver_register(&exynos_drm_platform_driver);
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if (ret < 0)
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goto out;
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return 0;
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out:
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#ifdef CONFIG_DRM_EXYNOS_VIDI
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out_vidi:
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platform_driver_unregister(&vidi_driver);
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#endif
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#ifdef CONFIG_DRM_EXYNOS_HDMI
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platform_driver_unregister(&exynos_drm_common_hdmi_driver);
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out_common_hdmi:
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platform_driver_unregister(&mixer_driver);
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out_mixer:
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platform_driver_unregister(&hdmi_driver);
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out_hdmi:
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#endif
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#ifdef CONFIG_DRM_EXYNOS_FIMD
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platform_driver_unregister(&fimd_driver);
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out_fimd:
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#endif
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return ret;
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}
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static void __exit exynos_drm_exit(void)
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{
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DRM_DEBUG_DRIVER("%s\n", __FILE__);
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platform_driver_unregister(&exynos_drm_platform_driver);
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#ifdef CONFIG_DRM_EXYNOS_HDMI
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platform_driver_unregister(&exynos_drm_common_hdmi_driver);
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platform_driver_unregister(&mixer_driver);
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platform_driver_unregister(&hdmi_driver);
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#endif
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#ifdef CONFIG_DRM_EXYNOS_VIDI
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platform_driver_unregister(&vidi_driver);
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#endif
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#ifdef CONFIG_DRM_EXYNOS_FIMD
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platform_driver_unregister(&fimd_driver);
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#endif
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}
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module_init(exynos_drm_init);
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module_exit(exynos_drm_exit);
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MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
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MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
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MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
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MODULE_DESCRIPTION("Samsung SoC DRM Driver");
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MODULE_LICENSE("GPL");
|