a73b93157f
It encourages users from writing to the FSF without giving an address. Linux also prefers to drop that and their checkpatch.pl (that we imported) looks out for that. This is the result of util/scripts/no-fsf-addresses.sh with no further editing. Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11888 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2011 Alexandru Gagniuc <mr.nuke.me@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <device/device.h>
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#include <device/pci_def.h>
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#include <device/pci_ops.h>
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#include <console/console.h>
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#if CONFIG_VGA_ROM_RUN
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#include <arch/interrupt.h>
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#include <x86emu/x86emu.h>
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#include <northbridge/via/vx900/vx900.h>
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static int vx900_int15_handler(void)
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{
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int res;
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printk(BIOS_DEBUG, "%s %0x\n", __func__, X86_AX & 0xffff);
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/* Set AX return value here so we don't set it every time. Just set it
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* to something else if the callback is unsupported */
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res = -1;
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switch (X86_AX & 0xffff) {
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#if 0
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case 0x5f01:
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/* VGA POST - panel type */
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/* FIXME: Don't hardcode panel type */
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/* Panel Type Number */
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X86_CX = 0;
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res = 0;
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break;
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case 0x5f02:
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{
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/* Boot device selection */
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X86_BL = INT15_5F02_BL_HWOPT_CRTCONN;
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/* FIXME: or 0 ? */
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X86_BH = 0; // INT15_5F02_BH_TV_CONN_DEFAULT;
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X86_EBX = 0; // INT15_5F02_EBX_HDTV_RGB;
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X86_ECX = INT15_5F02_ECX_DISPLAY_CRT;
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//X86_ECX |= INT15_5F02_ECX_TV_MODE_RGB;
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//X86_ECX |= INT15_5F02_ECX_HDTV_1080P;
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X86_DL = INT15_5F02_DL_TV_LAYOUT_DEFAULT;
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res = 0;
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break;
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}
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#endif
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case 0x5f18:
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X86_BL = vx900_int15_get_5f18_bl();
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res = 0;
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break;
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#if 0
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case 0x5f2a:
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/* Get SSC Control Settings */
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/* FIXME: No idea what this does. Just disable this feature
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* for now */
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X86_CX = INT15_5F2A_CX_SSC_ENABLE;
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res = 0;
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break;
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case 0x5f2b:
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/* Engine clock setting */
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/* FIXME: ECLK fixed 250MHz ? */
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X86_EBX = INT15_5F2B_EBX_ECLK_250MHZ;
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break;
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#endif
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default:
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printk(BIOS_DEBUG, "Unsupported INT15 call %04x!\n",
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X86_AX & 0xffff);
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X86_AX = 0;
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res = -1;
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break;
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}
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if (res == 0)
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X86_AX = 0x5f;
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else
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X86_AX = 0;
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return X86_AX;
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}
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#endif
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static void mainboard_enable(device_t dev)
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{
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(void)dev;
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#if CONFIG_VGA_ROM_RUN
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printk(BIOS_DEBUG, "Installing INT15 handler...\n");
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mainboard_interrupt_handlers(0x15, &vx900_int15_handler);
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#endif
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}
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struct chip_operations mainboard_ops = {
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CHIP_NAME("VIA EPIA-M850 Mainboard")
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.enable_dev = mainboard_enable,
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};
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