| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2012 Chromium OS Authors |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| /* mailbox 0: header */ |
| typedef struct { |
| u8 signature[16]; |
| u32 size; |
| u32 version; |
| u8 sbios_version[32]; |
| u8 vbios_version[16]; |
| u8 driver_version[16]; |
| u32 mailboxes; |
| u8 reserved[164]; |
| } __attribute__((packed)) opregion_header_t; |
| |
| #define IGD_OPREGION_SIGNATURE "IntelGraphicsMem" |
| #define IGD_OPREGION_VERSION 2 |
| |
| #define IGD_MBOX1 (1 << 0) |
| #define IGD_MBOX2 (1 << 1) |
| #define IGD_MBOX3 (1 << 2) |
| #define IGD_MBOX4 (1 << 3) |
| #define IGD_MBOX5 (1 << 4) |
| |
| #define MAILBOXES_MOBILE (IGD_MBOX1 | IGD_MBOX2 | IGD_MBOX3 | \ |
| IGD_MBOX4 | IGD_MBOX5) |
| #define MAILBOXES_DESKTOP (IGD_MBOX2 | IGD_MBOX4) |
| |
| #define SBIOS_VERSION_SIZE 32 |
| |
| /* mailbox 1: public acpi methods */ |
| typedef struct { |
| u32 drdy; |
| u32 csts; |
| u32 cevt; |
| u8 reserved1[20]; |
| u32 didl[8]; |
| u32 cpdl[8]; |
| u32 cadl[8]; |
| u32 nadl[8]; |
| u32 aslp; |
| u32 tidx; |
| u32 chpd; |
| u32 clid; |
| u32 cdck; |
| u32 sxsw; |
| u32 evts; |
| u32 cnot; |
| u32 nrdy; |
| u8 reserved2[60]; |
| } __attribute__((packed)) opregion_mailbox1_t; |
| |
| /* mailbox 2: software sci interface */ |
| typedef struct { |
| u32 scic; |
| u32 parm; |
| u32 dslp; |
| u8 reserved[244]; |
| } __attribute__((packed)) opregion_mailbox2_t; |
| |
| /* mailbox 3: power conservation */ |
| typedef struct { |
| u32 ardy; |
| u32 aslc; |
| u32 tche; |
| u32 alsi; |
| u32 bclp; |
| u32 pfit; |
| u32 cblv; |
| u16 bclm[20]; |
| u32 cpfm; |
| u32 epfm; |
| u8 plut[74]; |
| u32 pfmb; |
| u32 ccdv; |
| u32 pcft; |
| u8 reserved[94]; |
| } __attribute__((packed)) opregion_mailbox3_t; |
| |
| #define IGD_BACKLIGHT_BRIGHTNESS 0xff |
| #define IGD_INITIAL_BRIGHTNESS 0x64 |
| |
| #define IGD_FIELD_VALID (1 << 31) |
| #define IGD_WORD_FIELD_VALID (1 << 15) |
| #define IGD_PFIT_STRETCH 6 |
| |
| /* mailbox 4: vbt */ |
| typedef struct { |
| u8 gvd1[7168]; |
| } __attribute__((packed)) opregion_vbt_t; |
| |
| /* IGD OpRegion */ |
| typedef struct { |
| opregion_header_t header; |
| opregion_mailbox1_t mailbox1; |
| opregion_mailbox2_t mailbox2; |
| opregion_mailbox3_t mailbox3; |
| opregion_vbt_t vbt; |
| } __attribute__((packed)) igd_opregion_t; |
| |
| struct i915_gpu_controller_info; |
| |
| int i915lightup_sandy(const struct i915_gpu_controller_info *info, |
| u32 physbase, u16 pio, u8 *mmio, u32 lfb); |