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
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
27 struct opregion_header
{
36 } __attribute__((packed
));
38 struct opregion_apci
{
39 /*FIXME: add it later*/
40 } __attribute__((packed
));
42 struct opregion_swsci
{
43 /*FIXME: add it later*/
44 } __attribute__((packed
));
46 struct opregion_acpi
{
47 /*FIXME: add it later*/
48 } __attribute__((packed
));
50 int psb_intel_opregion_init(struct drm_device
*dev
)
52 struct drm_psb_private
*dev_priv
= dev
->dev_private
;
53 /*struct psb_intel_opregion * opregion = &dev_priv->opregion;*/
58 dev_priv
->lid_state
= NULL
;
60 pci_read_config_dword(dev
->pdev
, 0xfc, &opregion_phy
);
61 if (opregion_phy
== 0) {
62 DRM_DEBUG("Opregion not supported, won't support lid-switch\n");
65 DRM_DEBUG("OpRegion detected at 0x%8x\n", opregion_phy
);
67 base
= ioremap(opregion_phy
, 8*1024);
71 lid_state
= base
+ 0x01ac;
73 DRM_DEBUG("Lid switch state 0x%08x\n", *lid_state
);
75 dev_priv
->lid_state
= lid_state
;
76 dev_priv
->lid_last_state
= *lid_state
;