mirror of https://gitee.com/openkylin/linux.git
116 lines
2.5 KiB
C
116 lines
2.5 KiB
C
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/*
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* Copyright (C) 2012 Avionic Design GmbH
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* Copyright (C) 2012 NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/of_address.h>
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#include <linux/of_platform.h>
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#include <mach/clk.h>
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#include <linux/dma-mapping.h>
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#include <asm/dma-iommu.h>
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#include "drm.h"
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#define DRIVER_NAME "tegra"
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#define DRIVER_DESC "NVIDIA Tegra graphics"
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#define DRIVER_DATE "20120330"
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#define DRIVER_MAJOR 0
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#define DRIVER_MINOR 0
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#define DRIVER_PATCHLEVEL 0
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static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
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{
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struct device *dev = drm->dev;
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struct host1x *host1x;
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int err;
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host1x = dev_get_drvdata(dev);
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drm->dev_private = host1x;
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host1x->drm = drm;
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drm_mode_config_init(drm);
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err = host1x_drm_init(host1x, drm);
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if (err < 0)
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return err;
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err = tegra_drm_fb_init(drm);
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if (err < 0)
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return err;
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drm_kms_helper_poll_init(drm);
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return 0;
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}
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static int tegra_drm_unload(struct drm_device *drm)
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{
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drm_kms_helper_poll_fini(drm);
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tegra_drm_fb_exit(drm);
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drm_mode_config_cleanup(drm);
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return 0;
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}
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static int tegra_drm_open(struct drm_device *drm, struct drm_file *filp)
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{
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return 0;
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}
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static void tegra_drm_lastclose(struct drm_device *drm)
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{
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struct host1x *host1x = drm->dev_private;
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drm_fbdev_cma_restore_mode(host1x->fbdev);
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}
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static struct drm_ioctl_desc tegra_drm_ioctls[] = {
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};
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static const struct file_operations tegra_drm_fops = {
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.owner = THIS_MODULE,
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.open = drm_open,
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.release = drm_release,
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.unlocked_ioctl = drm_ioctl,
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.mmap = drm_gem_cma_mmap,
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.poll = drm_poll,
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.fasync = drm_fasync,
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.read = drm_read,
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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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.llseek = noop_llseek,
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};
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struct drm_driver tegra_drm_driver = {
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.driver_features = DRIVER_BUS_PLATFORM | DRIVER_MODESET | DRIVER_GEM,
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.load = tegra_drm_load,
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.unload = tegra_drm_unload,
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.open = tegra_drm_open,
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.lastclose = tegra_drm_lastclose,
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.gem_free_object = drm_gem_cma_free_object,
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.gem_vm_ops = &drm_gem_cma_vm_ops,
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.dumb_create = drm_gem_cma_dumb_create,
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.dumb_map_offset = drm_gem_cma_dumb_map_offset,
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.dumb_destroy = drm_gem_cma_dumb_destroy,
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.ioctls = tegra_drm_ioctls,
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.num_ioctls = ARRAY_SIZE(tegra_drm_ioctls),
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.fops = &tegra_drm_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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.patchlevel = DRIVER_PATCHLEVEL,
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};
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