![Alan Cox](/assets/img/avatar_default.png)
Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
/*
|
|
* Copyright 2010 Intel Corporation
|
|
*
|
|
* 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.
|
|
*
|
|
* FIXME: resolve with the i915 version
|
|
*/
|
|
|
|
#include "psb_drv.h"
|
|
|
|
struct opregion_header {
|
|
u8 signature[16];
|
|
u32 size;
|
|
u32 opregion_ver;
|
|
u8 bios_ver[32];
|
|
u8 vbios_ver[16];
|
|
u8 driver_ver[16];
|
|
u32 mboxes;
|
|
u8 reserved[164];
|
|
} __packed;
|
|
|
|
struct opregion_apci {
|
|
/*FIXME: add it later*/
|
|
} __packed;
|
|
|
|
struct opregion_swsci {
|
|
/*FIXME: add it later*/
|
|
} __packed;
|
|
|
|
struct opregion_acpi {
|
|
/*FIXME: add it later*/
|
|
} __packed;
|
|
|
|
int gma_intel_opregion_init(struct drm_device *dev)
|
|
{
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
u32 opregion_phy;
|
|
void *base;
|
|
u32 *lid_state;
|
|
|
|
dev_priv->lid_state = NULL;
|
|
|
|
pci_read_config_dword(dev->pdev, 0xfc, &opregion_phy);
|
|
if (opregion_phy == 0)
|
|
return -ENOTSUPP;
|
|
|
|
base = ioremap(opregion_phy, 8*1024);
|
|
if (!base)
|
|
return -ENOMEM;
|
|
|
|
lid_state = base + 0x01ac;
|
|
|
|
dev_priv->lid_state = lid_state;
|
|
dev_priv->lid_last_state = readl(lid_state);
|
|
return 0;
|
|
}
|
|
|
|
int gma_intel_opregion_exit(struct drm_device *dev)
|
|
{
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
if (dev_priv->lid_state)
|
|
iounmap(dev_priv->lid_state);
|
|
return 0;
|
|
}
|