X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=vgasrc%2Fstdvga.c;h=0345a813f03d38cb1f2ef9866461be0f5c981c2d;hb=3471fdbe63f9e982ae979094b6b3e7562dae1021;hp=70d018abb294e48968558b45bcf42a88fb6e2151;hpb=10dff3db247d07df8fcc83806f8e660ba2b3b6c2;p=seabios.git diff --git a/vgasrc/stdvga.c b/vgasrc/stdvga.c index 70d018a..0345a81 100644 --- a/vgasrc/stdvga.c +++ b/vgasrc/stdvga.c @@ -1,4 +1,4 @@ -// VGA io port access +// Standard VGA driver code // // Copyright (C) 2009 Kevin O'Connor // Copyright (C) 2001-2008 the LGPL VGABios developers Team @@ -94,26 +94,6 @@ stdvga_set_palette(u8 palid) outb(0x20, VGAREG_ACTL_ADDRESS); } -void -stdvga_set_single_palette_reg(u8 reg, u8 val) -{ - inb(VGAREG_ACTL_RESET); - outb(reg, VGAREG_ACTL_ADDRESS); - outb(val, VGAREG_ACTL_WRITE_DATA); - outb(0x20, VGAREG_ACTL_ADDRESS); -} - -u8 -stdvga_get_single_palette_reg(u8 reg) -{ - inb(VGAREG_ACTL_RESET); - outb(reg, VGAREG_ACTL_ADDRESS); - u8 v = inb(VGAREG_ACTL_READ_DATA); - inb(VGAREG_ACTL_RESET); - outb(0x20, VGAREG_ACTL_ADDRESS); - return v; -} - void stdvga_set_all_palette_reg(u16 seg, u8 *data_far) { @@ -205,48 +185,6 @@ stdvga_read_video_dac_state(u8 *pmode, u8 *curpage) * DAC control ****************************************************************/ -void -stdvga_set_dac_regs(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--; - } -} - -void -stdvga_get_dac_regs(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_set_pel_mask(u8 val) -{ - outb(val, VGAREG_PEL_MASK); -} - -u8 -stdvga_get_pel_mask(void) -{ - return inb(VGAREG_PEL_MASK); -} - void stdvga_save_dac_state(u16 seg, struct saveDACcolors *info) { @@ -254,7 +192,7 @@ stdvga_save_dac_state(u16 seg, struct saveDACcolors *info) SET_FARVAR(seg, info->rwmode, inb(VGAREG_DAC_STATE)); SET_FARVAR(seg, info->peladdr, inb(VGAREG_DAC_WRITE_ADDRESS)); SET_FARVAR(seg, info->pelmask, inb(VGAREG_PEL_MASK)); - stdvga_get_dac_regs(seg, info->dac, 0, 256); + stdvga_dac_read(seg, info->dac, 0, 256); SET_FARVAR(seg, info->color_select, 0); } @@ -262,7 +200,7 @@ void stdvga_restore_dac_state(u16 seg, struct saveDACcolors *info) { outb(GET_FARVAR(seg, info->pelmask), VGAREG_PEL_MASK); - stdvga_set_dac_regs(seg, info->dac, 0, 256); + stdvga_dac_write(seg, info->dac, 0, 256); outb(GET_FARVAR(seg, info->peladdr), VGAREG_DAC_WRITE_ADDRESS); } @@ -273,14 +211,14 @@ stdvga_perform_gray_scale_summing(u16 start, u16 count) int i; for (i = start; i < start+count; i++) { u8 rgb[3]; - stdvga_get_dac_regs(GET_SEG(SS), rgb, i, 1); + stdvga_dac_read(GET_SEG(SS), rgb, i, 1); // intensity = ( 0.3 * Red ) + ( 0.59 * Green ) + ( 0.11 * Blue ) u16 intensity = ((77 * rgb[0] + 151 * rgb[1] + 28 * rgb[2]) + 0x80) >> 8; if (intensity > 0x3f) intensity = 0x3f; - stdvga_set_dac_regs(GET_SEG(SS), rgb, i, 1); + stdvga_dac_write(GET_SEG(SS), rgb, i, 1); } stdvga_screen_enable(); } @@ -290,18 +228,6 @@ stdvga_perform_gray_scale_summing(u16 start, u16 count) * Memory control ****************************************************************/ -void -stdvga_sequ_write(u8 index, u8 value) -{ - outw((value<<8) | index, VGAREG_SEQU_ADDRESS); -} - -void -stdvga_grdc_write(u8 index, u8 value) -{ - outw((value<<8) | index, VGAREG_GRDC_ADDRESS); -} - void stdvga_set_text_block_specifier(u8 spec) { @@ -360,7 +286,7 @@ stdvga_load_font(u16 seg, void *src_far, u16 count u16 stdvga_get_crtc(void) { - if (inb(VGAREG_READ_MISC_OUTPUT) & 1) + if (stdvga_misc_read() & 1) return VGAREG_VGA_CRTC_ADDRESS; return VGAREG_MDA_CRTC_ADDRESS; } @@ -552,18 +478,18 @@ stdvga_set_mode(int mode, int flags) // if palette loading (bit 3 of modeset ctl = 0) if (!(flags & MF_NOPALETTE)) { // Set the PEL mask - stdvga_set_pel_mask(GET_GLOBAL(stdmode_g->pelmask)); + stdvga_pelmask_write(GET_GLOBAL(stdmode_g->pelmask)); // From which palette u8 *palette_g = GET_GLOBAL(stdmode_g->dac); u16 palsize = GET_GLOBAL(stdmode_g->dacsize) / 3; // Always 256*3 values - stdvga_set_dac_regs(get_global_seg(), palette_g, 0, palsize); + stdvga_dac_write(get_global_seg(), palette_g, 0, palsize); u16 i; for (i = palsize; i < 0x0100; i++) { static u8 rgb[3] VAR16; - stdvga_set_dac_regs(get_global_seg(), rgb, i, 1); + stdvga_dac_write(get_global_seg(), rgb, i, 1); } if (flags & MF_GRAYSUM) @@ -641,6 +567,12 @@ stdvga_set_mode(int mode, int flags) * Misc ****************************************************************/ +void +stdvga_list_modes(u16 seg, u16 *dest, u16 *last) +{ + SET_FARVAR(seg, *dest, 0xffff); +} + void stdvga_enable_video_addressing(u8 disable) {