2 * Copyright 2010 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 * DEALINGS IN THE SOFTWARE.
23 * FIXME: resolve with the i915 version
28 struct opregion_header {
39 struct opregion_apci {
40 /*FIXME: add it later*/
43 struct opregion_swsci {
44 /*FIXME: add it later*/
47 struct opregion_acpi {
48 /*FIXME: add it later*/
51 int gma_intel_opregion_init(struct drm_device *dev)
53 struct drm_psb_private *dev_priv = dev->dev_private;
58 dev_priv->lid_state = NULL;
60 pci_read_config_dword(dev->pdev, 0xfc, &opregion_phy);
61 if (opregion_phy == 0)
64 base = ioremap(opregion_phy, 8*1024);
68 lid_state = base + 0x01ac;
70 dev_priv->lid_state = lid_state;
71 dev_priv->lid_last_state = readl(lid_state);
75 int gma_intel_opregion_exit(struct drm_device *dev)
77 struct drm_psb_private *dev_priv = dev->dev_private;
78 if (dev_priv->lid_state)
79 iounmap(dev_priv->lid_state);