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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/x86/boot/video-vga.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
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.c | 288 |
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, -}; |