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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/x86/boot/video-vga.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/x86/boot/video-vga.c')
-rw-r--r--ANDROID_3.4.5/arch/x86/boot/video-vga.c288
1 files changed, 0 insertions, 288 deletions
diff --git a/ANDROID_3.4.5/arch/x86/boot/video-vga.c b/ANDROID_3.4.5/arch/x86/boot/video-vga.c
deleted file mode 100644
index 45bc9402..00000000
--- a/ANDROID_3.4.5/arch/x86/boot/video-vga.c
+++ /dev/null
@@ -1,288 +0,0 @@
-/* -*- linux-c -*- ------------------------------------------------------- *
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- * Copyright 2007 rPath, Inc. - All Rights Reserved
- * Copyright 2009 Intel Corporation; author H. Peter Anvin
- *
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
- * ----------------------------------------------------------------------- */
-
-/*
- * Common all-VGA modes
- */
-
-#include "boot.h"
-#include "video.h"
-
-static struct mode_info vga_modes[] = {
- { VIDEO_80x25, 80, 25, 0 },
- { VIDEO_8POINT, 80, 50, 0 },
- { VIDEO_80x43, 80, 43, 0 },
- { VIDEO_80x28, 80, 28, 0 },
- { VIDEO_80x30, 80, 30, 0 },
- { VIDEO_80x34, 80, 34, 0 },
- { VIDEO_80x60, 80, 60, 0 },
-};
-
-static struct mode_info ega_modes[] = {
- { VIDEO_80x25, 80, 25, 0 },
- { VIDEO_8POINT, 80, 43, 0 },
-};
-
-static struct mode_info cga_modes[] = {
- { VIDEO_80x25, 80, 25, 0 },
-};
-
-static __videocard video_vga;
-
-/* Set basic 80x25 mode */
-static u8 vga_set_basic_mode(void)
-{
- struct biosregs ireg, oreg;
- u8 mode;
-
- initregs(&ireg);
-
- /* Query current mode */
- ireg.ax = 0x0f00;
- intcall(0x10, &ireg, &oreg);
- mode = oreg.al;
-
- if (mode != 3 && mode != 7)
- mode = 3;
-
- /* Set the mode */
- ireg.ax = mode; /* AH=0: set mode */
- intcall(0x10, &ireg, NULL);
- do_restore = 1;
- return mode;
-}
-
-static void vga_set_8font(void)
-{
- /* Set 8x8 font - 80x43 on EGA, 80x50 on VGA */
- struct biosregs ireg;
-
- initregs(&ireg);
-
- /* Set 8x8 font */
- ireg.ax = 0x1112;
- /* ireg.bl = 0; */
- intcall(0x10, &ireg, NULL);
-
- /* Use alternate print screen */
- ireg.ax = 0x1200;
- ireg.bl = 0x20;
- intcall(0x10, &ireg, NULL);
-
- /* Turn off cursor emulation */
- ireg.ax = 0x1201;
- ireg.bl = 0x34;
- intcall(0x10, &ireg, NULL);
-
- /* Cursor is scan lines 6-7 */
- ireg.ax = 0x0100;
- ireg.cx = 0x0607;
- intcall(0x10, &ireg, NULL);
-}
-
-static void vga_set_14font(void)
-{
- /* Set 9x14 font - 80x28 on VGA */
- struct biosregs ireg;
-
- initregs(&ireg);
-
- /* Set 9x14 font */
- ireg.ax = 0x1111;
- /* ireg.bl = 0; */
- intcall(0x10, &ireg, NULL);
-
- /* Turn off cursor emulation */
- ireg.ax = 0x1201;
- ireg.bl = 0x34;
- intcall(0x10, &ireg, NULL);
-
- /* Cursor is scan lines 11-12 */
- ireg.ax = 0x0100;
- ireg.cx = 0x0b0c;
- intcall(0x10, &ireg, NULL);
-}
-
-static void vga_set_80x43(void)
-{
- /* Set 80x43 mode on VGA (not EGA) */
- struct biosregs ireg;
-
- initregs(&ireg);
-
- /* Set 350 scans */
- ireg.ax = 0x1201;
- ireg.bl = 0x30;
- intcall(0x10, &ireg, NULL);
-
- /* Reset video mode */
- ireg.ax = 0x0003;
- intcall(0x10, &ireg, NULL);
-
- vga_set_8font();
-}
-
-/* I/O address of the VGA CRTC */
-u16 vga_crtc(void)
-{
- return (inb(0x3cc) & 1) ? 0x3d4 : 0x3b4;
-}
-
-static void vga_set_480_scanlines(void)
-{
- u16 crtc; /* CRTC base address */
- u8 csel; /* CRTC miscellaneous output register */
-
- crtc = vga_crtc();
-
- out_idx(0x0c, crtc, 0x11); /* Vertical sync end, unlock CR0-7 */
- out_idx(0x0b, crtc, 0x06); /* Vertical total */
- out_idx(0x3e, crtc, 0x07); /* Vertical overflow */
- out_idx(0xea, crtc, 0x10); /* Vertical sync start */
- out_idx(0xdf, crtc, 0x12); /* Vertical display end */
- out_idx(0xe7, crtc, 0x15); /* Vertical blank start */
- out_idx(0x04, crtc, 0x16); /* Vertical blank end */
- csel = inb(0x3cc);
- csel &= 0x0d;
- csel |= 0xe2;
- outb(csel, 0x3c2);
-}
-
-static void vga_set_vertical_end(int lines)
-{
- u16 crtc; /* CRTC base address */
- u8 ovfw; /* CRTC overflow register */
- int end = lines-1;
-
- crtc = vga_crtc();
-
- ovfw = 0x3c | ((end >> (8-1)) & 0x02) | ((end >> (9-6)) & 0x40);
-
- out_idx(ovfw, crtc, 0x07); /* Vertical overflow */
- out_idx(end, crtc, 0x12); /* Vertical display end */
-}
-
-static void vga_set_80x30(void)
-{
- vga_set_480_scanlines();
- vga_set_vertical_end(30*16);
-}
-
-static void vga_set_80x34(void)
-{
- vga_set_480_scanlines();
- vga_set_14font();
- vga_set_vertical_end(34*14);
-}
-
-static void vga_set_80x60(void)
-{
- vga_set_480_scanlines();
- vga_set_8font();
- vga_set_vertical_end(60*8);
-}
-
-static int vga_set_mode(struct mode_info *mode)
-{
- /* Set the basic mode */
- vga_set_basic_mode();
-
- /* Override a possibly broken BIOS */
- force_x = mode->x;
- force_y = mode->y;
-
- switch (mode->mode) {
- case VIDEO_80x25:
- break;
- case VIDEO_8POINT:
- vga_set_8font();
- break;
- case VIDEO_80x43:
- vga_set_80x43();
- break;
- case VIDEO_80x28:
- vga_set_14font();
- break;
- case VIDEO_80x30:
- vga_set_80x30();
- break;
- case VIDEO_80x34:
- vga_set_80x34();
- break;
- case VIDEO_80x60:
- vga_set_80x60();
- break;
- }
-
- return 0;
-}
-
-/*
- * Note: this probe includes basic information required by all
- * systems. It should be executed first, by making sure
- * video-vga.c is listed first in the Makefile.
- */
-static int vga_probe(void)
-{
- static const char *card_name[] = {
- "CGA/MDA/HGC", "EGA", "VGA"
- };
- static struct mode_info *mode_lists[] = {
- cga_modes,
- ega_modes,
- vga_modes,
- };
- static int mode_count[] = {
- sizeof(cga_modes)/sizeof(struct mode_info),
- sizeof(ega_modes)/sizeof(struct mode_info),
- sizeof(vga_modes)/sizeof(struct mode_info),
- };
-
- struct biosregs ireg, oreg;
-
- initregs(&ireg);
-
- ireg.ax = 0x1200;
- ireg.bl = 0x10; /* Check EGA/VGA */
- intcall(0x10, &ireg, &oreg);
-
-#ifndef _WAKEUP
- boot_params.screen_info.orig_video_ega_bx = oreg.bx;
-#endif
-
- /* If we have MDA/CGA/HGC then BL will be unchanged at 0x10 */
- if (oreg.bl != 0x10) {
- /* EGA/VGA */
- ireg.ax = 0x1a00;
- intcall(0x10, &ireg, &oreg);
-
- if (oreg.al == 0x1a) {
- adapter = ADAPTER_VGA;
-#ifndef _WAKEUP
- boot_params.screen_info.orig_video_isVGA = 1;
-#endif
- } else {
- adapter = ADAPTER_EGA;
- }
- } else {
- adapter = ADAPTER_CGA;
- }
-
- video_vga.modes = mode_lists[adapter];
- video_vga.card_name = card_name[adapter];
- return mode_count[adapter];
-}
-
-static __videocard video_vga = {
- .card_name = "VGA",
- .probe = vga_probe,
- .set_mode = vga_set_mode,
-};