[linuxdc-cvs] CVS: linux/drivers/video pvr2dcfb.c,NONE,1.1

[M. R. B. <mr...@us...>]

Update of /cvsroot/linuxdc/linux/drivers/video
In directory usw-pr-cvs1:/tmp/cvs-serv10511/drivers/video

Added Files:
	pvr2dcfb.c 
Log Message:
Initial framebuffer support @ 640x480-32 (NTSC)

--- NEW FILE ---
/* drivers/video/pvr2dcfb.c
 *
 * Frame buffer and fbcon support for the NEC PowerVR2 found within the Sega
 * Dreamcast.
 *
 * Copyright (c) 2001 M. R. Brown <mr...@0x...>
 *
 * This file is part of the LinuxDC project (linuxdc.sourceforge.net).
 *
 */

/*
 * This driver is mostly based on the excellent amifb and vfb sources.  It uses
 * an odd scheme for converting hardware values to/from framebuffer values, here are
 * some hacked-up formulas:
 *
 *  The Dreamcast has screen offsets from each side of it's four borders and the start
 *  offsets of the display window.  I used these values to calculate 'pseudo' values
 *  (think of them as placeholders) for the fb video mode, so that when it came time
[...1093 lines suppressed...]
	if (*cable_arg)
		cable_type = pvr2dc_get_param(cables, cable_arg, 0, 6);

	if (*output_arg)
		video_output = pvr2dc_get_param(outputs, output_arg, 0, 6);

	return 0;
}

#ifdef MODULE
int init_module(void)
{
	return pvr2dcfb_init();
}

void cleanup_module(void)
{
	unregister_framebuffer(&fb_info);
}
#endif /* MODULE */