| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2009 Joseph Smith <joe@settoplinux.org> |
| * |
| * 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; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * 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. |
| */ |
| |
| #include <console/console.h> |
| #include <arch/io.h> |
| #include <stdint.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <cbfs.h> |
| #include <x86emu/x86emu.h> |
| |
| static void vga_init(device_t dev) |
| { |
| printk(BIOS_INFO, "Starting Graphics Initialization\n"); |
| size_t mbi_len; |
| void *mbi = cbfs_boot_map_with_leak("mbi.bin", CBFS_TYPE_MBI, &mbi_len); |
| |
| if (mbi && mbi_len) { |
| /* The GDT or coreboot table is going to live here. But |
| * a long time after we relocated the GNVS, so this is |
| * not troublesome. |
| */ |
| *(u32 *)0x500 = (u32)mbi; |
| *(u32 *)0x504 = (u32)mbi_len; |
| outb(0xeb, 0xb2); |
| } |
| |
| pci_dev_init(dev); |
| printk(BIOS_INFO, "Graphics Initialization Complete\n"); |
| |
| /* Enable TV-Out */ |
| #if IS_ENABLED(CONFIG_PCI_OPTION_ROM_RUN_YABEL) |
| #define PIPE_A_CRT (1 << 0) |
| #define PIPE_A_LFP (1 << 1) |
| #define PIPE_A_TV (1 << 3) |
| #define PIPE_B_CRT (1 << 8) |
| #define PIPE_B_TV (1 << 10) |
| printk(BIOS_DEBUG, "Enabling TV-Out\n"); |
| void runInt10(void); |
| X86_AX = 0x5f64; |
| X86_BX = 0x0001; // Set Display Device, force execution |
| X86_CX = PIPE_A_CRT | PIPE_A_TV; |
| // M.x86.R_CX = PIPE_B_TV; |
| runInt10(); |
| switch (X86_AX) { |
| case 0x005f: |
| printk(BIOS_DEBUG, "... failed.\n"); |
| break; |
| case 0x015f: |
| printk(BIOS_DEBUG, "... ok.\n"); |
| break; |
| default: |
| printk(BIOS_DEBUG, "... not supported.\n"); |
| break; |
| } |
| #endif |
| } |
| |
| static const struct device_operations vga_operations = { |
| .read_resources = pci_dev_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = vga_init, |
| .scan_bus = 0, |
| .enable = 0, |
| .ops_pci = 0, |
| }; |
| |
| static const struct pci_driver vga_driver __pci_driver = { |
| .ops = &vga_operations, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .device = 0x3577, |
| }; |