Cross Reference: /xsrc/external/mit/xf86-video-nsc/dist/src/gfx/vga

Lines Matching refs:vga
5  * This file contains routines to set modes using the VGA registers.  
148 /*  MODE TABLES FOR VGA REGISTERS  */
300  * This routine looks for the VGA PCI header.  It checks to see that bit 1 
306  * command register and have the proper effect (enable trapping of VGA).  
307  * Otherwise, if we enable VGA via the PCI header, trapping really won't be 
308  * enabled and the VGA register writes will go out to the external card.
351  *    Bit 0: Enable VGA IO
352  *    Bit 1: Enable VGA memory
386  * This routine sets the standard VGA sequencer, graphics controller, and
390  * the "gfx_vga_restore" routine.   Most OSs that use VGA to set modes save
391  * and restore the standard VGA registers themselves, which is why these
415  * This routine searches the VGA mode table for a match of the specified 
416  * mode and then fills in the VGA structure with the associated VGA register 
422 gfx_vga_mode(gfx_vga_struct * vga, int xres, int yres, int bpp, int hz)
432 	 *vga = gfx_vga_modes[i];
444 	 vga->stdCRTCregs[0x13] = (unsigned char)pitch;
445 	 vga->extCRTCregs[0x05] = (unsigned char)((pitch >> 8) & 0x03);
452 	    vga->extCRTCregs[0x06] = CRTC_BIT_16BPP | CRTC_BIT_555;
455 	    vga->extCRTCregs[0x06] = CRTC_BIT_16BPP;
458 	    vga->extCRTCregs[0x06] = 0;
470  * This routine updates the VGA regisers in the specified VGA structure for 
475 gfx_vga_pitch(gfx_vga_struct * vga, unsigned short pitch)
478    vga->stdCRTCregs[0x13] = (unsigned char)pitch;
479    vga->extCRTCregs[0x05] = (unsigned char)((pitch >> 8) & 0x03);
486  * This routine saves the state of the VGA registers into the specified 
492 gfx_vga_save(gfx_vga_struct * vga, int flags)
505       vga->miscOutput = INB(0x3CC);
515 	 vga->stdCRTCregs[i] = INB(crtcdata);
526 	 vga->extCRTCregs[i] = INB(crtcdata);
536  * behave like standard VGA. 
562  * This routine restores the state of the VGA registers from the specified
568 gfx_vga_restore(gfx_vga_struct * vga, int flags)
581       OUTB(0x3C2, vga->miscOutput);
596 	 OUTB(crtcdata, vga->stdCRTCregs[i]);
613 	 OUTB(crtcdata, vga->extCRTCregs[i]);
623       if (vga->extCRTCregs[0x03] & 1) {
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