video/fbdev/amifb.c

186       - diwstop_h:   Horizontal stop + 1(*) of the visible window
220       - diwstop_h = diwstrt_h + xres + 1. Because of the additional 1 this can
229       - I make diwstop_h and diwstop_v as large as possible.
733 	u_short diwstop_h;	/* vmode */
977 	 *	diwstop_h    0   4095     1
1011 #define diwstop2hw(diwstop_h, diwstop_v) \
1012 	(((diwstop_v) << 7 & 0xff00) | ((diwstop_h)>>2 & 0x00ff))
1013 #define diwhigh2hw(diwstrt_h, diwstrt_v, diwstop_h, diwstop_v) \
1014 	(((diwstop_h) << 3 & 0x2000) | ((diwstop_h) << 11 & 0x1800) | \
1233 		par->diwstop_h = par->htotal -
1236 			par->diwstop_h += mod4(var->hsync_len);
1238 			par->diwstop_h = down4(par->diwstop_h);
1240 		par->diwstrt_h = par->diwstop_h - xres_n;
1244 		if (par->diwstop_h >= par->htotal + 8) {
1245 			DPRINTK("invalid diwstop_h\n");
1295 			 * and NTSC activated, so than better let diwstop_h <= 1812
1324 			if (par->diwstrt_h >= 1024 || par->diwstop_h < 1024 ||
1334 		par->diwstop_h = par->htotal - mod8(par->hsstrt) + 8 - (1 << clk_shift);
1336 			par->diwstop_h = down4(par->diwstop_h) - 16;
1337 		par->diwstrt_h = par->diwstop_h - xres_n;
1339 		par->hbstrt = par->diwstop_h + 4;
1579 		var->hsync_len = (152>>clk_shift) + mod4(par->diwstop_h);
1580 		var->right_margin = ((par->htotal - down4(par->diwstop_h))>>clk_shift) + var->hsync_len;
2263 		(copl++)->l = CMOVE(diwstop2hw(par->diwstop_h, par->diwstop_v + 1), diwstop);
2265 		(cops++)->l = CMOVE(diwstop2hw(par->diwstop_h, par->diwstop_v), diwstop);
2268 					    par->diwstop_h, par->diwstop_v + 1), diwhigh);
2270 					    par->diwstop_h, par->diwstop_v), diwhigh);
2291 		(copl++)->l = CMOVE(diwstop2hw(par->diwstop_h, par->diwstop_v), diwstop);
2294 					    par->diwstop_h, par->diwstop_v), diwhigh);