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/*
* Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
*/
/*
* Copyright (c) 2012, 2013, Intel Corporation. All rights reserved.
*/
/*
* Copyright © 2007 David Airlie
*
* 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
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Authors:
* David Airlie
*/
#include "drmP.h"
#include "drm.h"
#include "drm_crtc.h"
#include "drm_fb_helper.h"
#include "intel_drv.h"
#include "i915_drm.h"
#include "i915_drv.h"
static int intelfb_create(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper;
struct drm_device *dev = ifbdev->helper.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_framebuffer *fb;
struct drm_mode_fb_cmd2 mode_cmd;
struct drm_i915_gem_object *obj;
int size, ret;
/* we don't do packed 24bpp */
if (sizes->surface_bpp == 24)
sizes->surface_bpp = 32;
(void) memset(&mode_cmd, 0, sizeof(struct drm_mode_fb_cmd2));
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((sizes->surface_bpp + 7) /
8), 64);
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
sizes->surface_depth);
size = mode_cmd.pitches[0] * mode_cmd.height;
size = ALIGN(size, PAGE_SIZE);
obj = dev_priv->fbcon_obj;
if (!obj) {
DRM_ERROR("There is no framebuffer for console");
ret = -ENOMEM;
goto out;
}
mutex_lock(&dev->struct_mutex);
ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
if (ret)
goto out_unpin;
fb = &ifbdev->ifb.base;
ifbdev->helper.fb = fb;
mutex_unlock(&dev->struct_mutex);
return 0;
out_unpin:
i915_gem_object_unpin(obj);
out_unref:
drm_gem_object_unreference(&obj->base);
mutex_unlock(&dev->struct_mutex);
out:
return ret;
}
static struct drm_fb_helper_funcs intel_fb_helper_funcs = {
.gamma_set = intel_crtc_fb_gamma_set,
.gamma_get = intel_crtc_fb_gamma_get,
.fb_probe = intelfb_create,
};
static void intel_fbdev_destroy(struct drm_device *dev,
struct intel_fbdev *ifbdev)
{
struct intel_framebuffer *ifb = &ifbdev->ifb;
drm_fb_helper_fini(&ifbdev->helper);
drm_framebuffer_unregister_private(&ifb->base);
drm_framebuffer_cleanup(&ifb->base);
if (ifb->obj) {
drm_gem_object_unreference_unlocked(&ifb->obj->base);
ifb->obj = NULL;
}
}
int intel_fbdev_init(struct drm_device *dev)
{
struct intel_fbdev *ifbdev;
struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL);
if (!ifbdev)
return -ENOMEM;
dev_priv->fbdev = ifbdev;
ifbdev->helper.funcs = &intel_fb_helper_funcs;
ret = drm_fb_helper_init(dev, &ifbdev->helper,
INTEL_INFO(dev)->num_pipes,
INTELFB_CONN_LIMIT);
if (ret) {
kfree(ifbdev, sizeof(struct intel_fbdev));
return ret;
}
(void) drm_fb_helper_single_add_all_connectors(&ifbdev->helper);
return 0;
}
void intel_fbdev_initial_config(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
/* Due to peculiar init order wrt to hpd handling this is separate. */
(void) drm_fb_helper_initial_config(&dev_priv->fbdev->helper, 16);
}
void intel_fbdev_fini(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
if (!dev_priv->fbdev)
return;
intel_fbdev_destroy(dev, dev_priv->fbdev);
kfree(dev_priv->fbdev, sizeof(struct intel_fbdev));
dev_priv->fbdev = NULL;
}
void intel_fb_output_poll_changed(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
if (dev_priv->fbdev != NULL)
(void) drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper);
}
void intel_fb_restore_mode(struct drm_device *dev)
{
int ret;
struct drm_i915_private *dev_priv = dev->dev_private;
if (INTEL_INFO(dev)->num_pipes == 0)
return;
drm_modeset_lock_all(dev);
ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper);
if (ret)
DRM_DEBUG("failed to restore crtc mode\n");
drm_modeset_unlock_all(dev);
}
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