diff options
Diffstat (limited to 'src/devices/oprom/x86.c')
| -rw-r--r-- | src/devices/oprom/x86.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/src/devices/oprom/x86.c b/src/devices/oprom/x86.c index cc70d74cf5..1791a87f14 100644 --- a/src/devices/oprom/x86.c +++ b/src/devices/oprom/x86.c @@ -167,33 +167,40 @@ static void setup_realmode_idt(void) } #if CONFIG_FRAMEBUFFER_SET_VESA_MODE -static u8 vbe_get_mode_info(vbe_mode_info_t * mode_info) +vbe_mode_info_t mode_info; +static int mode_info_valid; + +int vbe_mode_info_valid(void) +{ + return mode_info_valid; +} + +static u8 vbe_get_mode_info(vbe_mode_info_t * mi) { printk(BIOS_DEBUG, "VBE: Getting information about VESA mode %04x\n", - mode_info->video_mode); + mi->video_mode); char *buffer = (char *)&__buffer; u16 buffer_seg = (((unsigned long)buffer) >> 4) & 0xff00; u16 buffer_adr = ((unsigned long)buffer) & 0xffff; realmode_interrupt(0x10, VESA_GET_MODE_INFO, 0x0000, - mode_info->video_mode, 0x0000, buffer_seg, buffer_adr); - memcpy(mode_info->mode_info_block, buffer, sizeof(vbe_mode_info_t)); + mi->video_mode, 0x0000, buffer_seg, buffer_adr); + memcpy(mi->mode_info_block, buffer, sizeof(vbe_mode_info_t)); + mode_info_valid = 1; return 0; } -static u8 vbe_set_mode(vbe_mode_info_t * mode_info) +static u8 vbe_set_mode(vbe_mode_info_t * mi) { - printk(BIOS_DEBUG, "VBE: Setting VESA mode %04x\n", mode_info->video_mode); + printk(BIOS_DEBUG, "VBE: Setting VESA mode %04x\n", mi->video_mode); // request linear framebuffer mode - mode_info->video_mode |= (1 << 14); + mi->video_mode |= (1 << 14); // request clearing of framebuffer - mode_info->video_mode &= ~(1 << 15); - realmode_interrupt(0x10, VESA_SET_MODE, mode_info->video_mode, + mi->video_mode &= ~(1 << 15); + realmode_interrupt(0x10, VESA_SET_MODE, mi->video_mode, 0x0000, 0x0000, 0x0000, 0x0000); return 0; } -vbe_mode_info_t mode_info; - /* These two functions could probably even be generic between * yabel and x86 native. TBD later. */ |