Alan Cox | 0867b42 | 2011-02-22 14:27:58 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2010 Intel Corporation |
| 3 | * |
| 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: |
| 10 | * |
| 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 |
| 13 | * Software. |
| 14 | * |
| 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. |
| 22 | * |
Alan Cox | 6b8402b | 2011-08-26 11:18:41 +0100 | [diff] [blame] | 23 | * FIXME: resolve with the i915 version |
Alan Cox | 0867b42 | 2011-02-22 14:27:58 +0000 | [diff] [blame] | 24 | */ |
| 25 | |
| 26 | #include "psb_drv.h" |
| 27 | |
| 28 | struct opregion_header { |
| 29 | u8 signature[16]; |
| 30 | u32 size; |
| 31 | u32 opregion_ver; |
| 32 | u8 bios_ver[32]; |
| 33 | u8 vbios_ver[16]; |
| 34 | u8 driver_ver[16]; |
| 35 | u32 mboxes; |
| 36 | u8 reserved[164]; |
Alan Cox | e2e8860 | 2011-07-05 15:36:19 +0100 | [diff] [blame] | 37 | } __packed; |
Alan Cox | 0867b42 | 2011-02-22 14:27:58 +0000 | [diff] [blame] | 38 | |
| 39 | struct opregion_apci { |
| 40 | /*FIXME: add it later*/ |
Alan Cox | e2e8860 | 2011-07-05 15:36:19 +0100 | [diff] [blame] | 41 | } __packed; |
Alan Cox | 0867b42 | 2011-02-22 14:27:58 +0000 | [diff] [blame] | 42 | |
| 43 | struct opregion_swsci { |
| 44 | /*FIXME: add it later*/ |
Alan Cox | e2e8860 | 2011-07-05 15:36:19 +0100 | [diff] [blame] | 45 | } __packed; |
Alan Cox | 0867b42 | 2011-02-22 14:27:58 +0000 | [diff] [blame] | 46 | |
| 47 | struct opregion_acpi { |
| 48 | /*FIXME: add it later*/ |
Alan Cox | e2e8860 | 2011-07-05 15:36:19 +0100 | [diff] [blame] | 49 | } __packed; |
Alan Cox | 0867b42 | 2011-02-22 14:27:58 +0000 | [diff] [blame] | 50 | |
Alan Cox | 5ed836a | 2011-07-08 09:43:45 +0100 | [diff] [blame] | 51 | int gma_intel_opregion_init(struct drm_device *dev) |
Alan Cox | 0867b42 | 2011-02-22 14:27:58 +0000 | [diff] [blame] | 52 | { |
| 53 | struct drm_psb_private *dev_priv = dev->dev_private; |
Alan Cox | 0867b42 | 2011-02-22 14:27:58 +0000 | [diff] [blame] | 54 | u32 opregion_phy; |
| 55 | void *base; |
| 56 | u32 *lid_state; |
| 57 | |
| 58 | dev_priv->lid_state = NULL; |
| 59 | |
| 60 | pci_read_config_dword(dev->pdev, 0xfc, &opregion_phy); |
Alan Cox | 99d8f03 | 2011-07-05 15:35:30 +0100 | [diff] [blame] | 61 | if (opregion_phy == 0) |
Alan Cox | 0867b42 | 2011-02-22 14:27:58 +0000 | [diff] [blame] | 62 | return -ENOTSUPP; |
Alan Cox | 0867b42 | 2011-02-22 14:27:58 +0000 | [diff] [blame] | 63 | |
| 64 | base = ioremap(opregion_phy, 8*1024); |
| 65 | if (!base) |
| 66 | return -ENOMEM; |
| 67 | |
| 68 | lid_state = base + 0x01ac; |
| 69 | |
Alan Cox | 0867b42 | 2011-02-22 14:27:58 +0000 | [diff] [blame] | 70 | dev_priv->lid_state = lid_state; |
Alan Cox | b21fb57 | 2011-07-05 15:42:23 +0100 | [diff] [blame] | 71 | dev_priv->lid_last_state = readl(lid_state); |
Alan Cox | 0867b42 | 2011-02-22 14:27:58 +0000 | [diff] [blame] | 72 | return 0; |
| 73 | } |
Alan Cox | b21fb57 | 2011-07-05 15:42:23 +0100 | [diff] [blame] | 74 | |
Alan Cox | 5ed836a | 2011-07-08 09:43:45 +0100 | [diff] [blame] | 75 | int gma_intel_opregion_exit(struct drm_device *dev) |
Alan Cox | b21fb57 | 2011-07-05 15:42:23 +0100 | [diff] [blame] | 76 | { |
| 77 | struct drm_psb_private *dev_priv = dev->dev_private; |
| 78 | if (dev_priv->lid_state) |
| 79 | iounmap(dev_priv->lid_state); |
| 80 | return 0; |
| 81 | } |