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/*
* 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.
*
*/
#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];
} __attribute__((packed));
struct opregion_apci {
/*FIXME: add it later*/
} __attribute__((packed));
struct opregion_swsci {
/*FIXME: add it later*/
} __attribute__((packed));
struct opregion_acpi {
/*FIXME: add it later*/
} __attribute__((packed));
int psb_intel_opregion_init(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
/*struct psb_intel_opregion * opregion = &dev_priv->opregion;*/
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) {
DRM_DEBUG("Opregion not supported, won't support lid-switch\n");
return -ENOTSUPP;
}
DRM_DEBUG("OpRegion detected at 0x%8x\n", opregion_phy);
base = ioremap(opregion_phy, 8*1024);
if (!base)
return -ENOMEM;
lid_state = base + 0x01ac;
DRM_DEBUG("Lid switch state 0x%08x\n", *lid_state);
dev_priv->lid_state = lid_state;
dev_priv->lid_last_state = *lid_state;
return 0;
}
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