diff options
Diffstat (limited to 'qemu/roms/seabios/vgasrc/stdvgaio.c')
| -rw-r--r-- | qemu/roms/seabios/vgasrc/stdvgaio.c | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/qemu/roms/seabios/vgasrc/stdvgaio.c b/qemu/roms/seabios/vgasrc/stdvgaio.c deleted file mode 100644 index d6138c22b..000000000 --- a/qemu/roms/seabios/vgasrc/stdvgaio.c +++ /dev/null @@ -1,185 +0,0 @@ -// Standard VGA IO port access -// -// Copyright (C) 2012 Kevin O'Connor <kevin@koconnor.net> -// -// This file may be distributed under the terms of the GNU LGPLv3 license. - -#include "farptr.h" // GET_FARVAR -#include "stdvga.h" // stdvga_pelmask_read -#include "x86.h" // inb - -u8 -stdvga_pelmask_read(void) -{ - return inb(VGAREG_PEL_MASK); -} - -void -stdvga_pelmask_write(u8 value) -{ - outb(value, VGAREG_PEL_MASK); -} - - -u8 -stdvga_misc_read(void) -{ - return inb(VGAREG_READ_MISC_OUTPUT); -} - -void -stdvga_misc_write(u8 value) -{ - outb(value, VGAREG_WRITE_MISC_OUTPUT); -} - -void -stdvga_misc_mask(u8 off, u8 on) -{ - stdvga_misc_write((stdvga_misc_read() & ~off) | on); -} - - -u8 -stdvga_sequ_read(u8 index) -{ - outb(index, VGAREG_SEQU_ADDRESS); - return inb(VGAREG_SEQU_DATA); -} - -void -stdvga_sequ_write(u8 index, u8 value) -{ - outw((value<<8) | index, VGAREG_SEQU_ADDRESS); -} - -void -stdvga_sequ_mask(u8 index, u8 off, u8 on) -{ - outb(index, VGAREG_SEQU_ADDRESS); - u8 v = inb(VGAREG_SEQU_DATA); - outb((v & ~off) | on, VGAREG_SEQU_DATA); -} - - -u8 -stdvga_grdc_read(u8 index) -{ - outb(index, VGAREG_GRDC_ADDRESS); - return inb(VGAREG_GRDC_DATA); -} - -void -stdvga_grdc_write(u8 index, u8 value) -{ - outw((value<<8) | index, VGAREG_GRDC_ADDRESS); -} - -void -stdvga_grdc_mask(u8 index, u8 off, u8 on) -{ - outb(index, VGAREG_GRDC_ADDRESS); - u8 v = inb(VGAREG_GRDC_DATA); - outb((v & ~off) | on, VGAREG_GRDC_DATA); -} - - -u8 -stdvga_crtc_read(u16 crtc_addr, u8 index) -{ - outb(index, crtc_addr); - return inb(crtc_addr + 1); -} - -void -stdvga_crtc_write(u16 crtc_addr, u8 index, u8 value) -{ - outw((value<<8) | index, crtc_addr); -} - -void -stdvga_crtc_mask(u16 crtc_addr, u8 index, u8 off, u8 on) -{ - outb(index, crtc_addr); - u8 v = inb(crtc_addr + 1); - outb((v & ~off) | on, crtc_addr + 1); -} - - -u8 -stdvga_attr_read(u8 index) -{ - inb(VGAREG_ACTL_RESET); - u8 orig = inb(VGAREG_ACTL_ADDRESS); - outb(index, VGAREG_ACTL_ADDRESS); - u8 v = inb(VGAREG_ACTL_READ_DATA); - inb(VGAREG_ACTL_RESET); - outb(orig, VGAREG_ACTL_ADDRESS); - return v; -} - -void -stdvga_attr_write(u8 index, u8 value) -{ - inb(VGAREG_ACTL_RESET); - u8 orig = inb(VGAREG_ACTL_ADDRESS); - outb(index, VGAREG_ACTL_ADDRESS); - outb(value, VGAREG_ACTL_WRITE_DATA); - outb(orig, VGAREG_ACTL_ADDRESS); -} - -void -stdvga_attr_mask(u8 index, u8 off, u8 on) -{ - inb(VGAREG_ACTL_RESET); - u8 orig = inb(VGAREG_ACTL_ADDRESS); - outb(index, VGAREG_ACTL_ADDRESS); - u8 v = inb(VGAREG_ACTL_READ_DATA); - outb((v & ~off) | on, VGAREG_ACTL_WRITE_DATA); - outb(orig, VGAREG_ACTL_ADDRESS); -} - -u8 -stdvga_attrindex_read(void) -{ - inb(VGAREG_ACTL_RESET); - return inb(VGAREG_ACTL_ADDRESS); -} - -void -stdvga_attrindex_write(u8 value) -{ - inb(VGAREG_ACTL_RESET); - outb(value, VGAREG_ACTL_ADDRESS); -} - - -void -stdvga_dac_read(u16 seg, u8 *data_far, u8 start, int count) -{ - outb(start, VGAREG_DAC_READ_ADDRESS); - while (count) { - SET_FARVAR(seg, *data_far, inb(VGAREG_DAC_DATA)); - data_far++; - SET_FARVAR(seg, *data_far, inb(VGAREG_DAC_DATA)); - data_far++; - SET_FARVAR(seg, *data_far, inb(VGAREG_DAC_DATA)); - data_far++; - count--; - } -} - -void -stdvga_dac_write(u16 seg, u8 *data_far, u8 start, int count) -{ - outb(start, VGAREG_DAC_WRITE_ADDRESS); - while (count) { - outb(GET_FARVAR(seg, *data_far), VGAREG_DAC_DATA); - data_far++; - outb(GET_FARVAR(seg, *data_far), VGAREG_DAC_DATA); - data_far++; - outb(GET_FARVAR(seg, *data_far), VGAREG_DAC_DATA); - data_far++; - count--; - } -} |