1 /*-*- linux-c -*-
2  *  linux/drivers/video/i810_main.h -- Intel 810 Non-discrete Video Timings 
20  * FIFO and Watermark tables - based almost wholly on i810_wmark.c in 
26    u32 freq;  member
116  * i810fb_encode_registers - encode @var to hardware register values
128 	u8 __iomem *mmio = par->mmio_start_virtual;  in i810fb_encode_registers()
133 	n = ((xres + var->right_margin + var->hsync_len +   in i810fb_encode_registers()
134 	      var->left_margin) >> 3) - 5;  in i810fb_encode_registers()
135 	par->regs.cr00 =  (u8) n;  in i810fb_encode_registers()
136 	par->regs.cr35 = (u8) ((n >> 8) & 1);  in i810fb_encode_registers()
139 	par->regs.cr01 = (u8) ((xres >> 3) - 1);  in i810fb_encode_registers()
142 	blank_e = (xres + var->right_margin + var->hsync_len +   in i810fb_encode_registers()
143 		   var->left_margin) >> 3;  in i810fb_encode_registers()
144 	blank_e--;  in i810fb_encode_registers()
145 	blank_s = blank_e - 127;  in i810fb_encode_registers()
148 	par->regs.cr02 = (u8) blank_s;  in i810fb_encode_registers()
149 	par->regs.cr03 = (u8) (blank_e & 0x1F);  in i810fb_encode_registers()
150 	par->regs.cr05 = (u8) ((blank_e & (1 << 5)) << 2);  in i810fb_encode_registers()
151 	par->regs.cr39 = (u8) ((blank_e >> 6) & 1);  in i810fb_encode_registers()
154 	par->regs.cr04 = (u8) ((xres + var->right_margin) >> 3);  in i810fb_encode_registers()
155 	par->regs.cr05 |= (u8) (((xres + var->right_margin +   in i810fb_encode_registers()
156 				  var->hsync_len) >> 3) & 0x1F);  in i810fb_encode_registers()
160 	n = yres + var->lower_margin + var->vsync_len + var->upper_margin - 2;  in i810fb_encode_registers()
161 	par->regs.cr06 = (u8) (n & 0xFF);  in i810fb_encode_registers()
162 	par->regs.cr30 = (u8) ((n >> 8) & 0x0F);  in i810fb_encode_registers()
165 	n = yres + var->lower_margin;  in i810fb_encode_registers()
166 	par->regs.cr10 = (u8) (n & 0xFF);  in i810fb_encode_registers()
167 	par->regs.cr32 = (u8) ((n >> 8) & 0x0F);  in i810fb_encode_registers()
168 	par->regs.cr11 = i810_readb(CR11, mmio) & ~0x0F;  in i810fb_encode_registers()
169 	par->regs.cr11 |= (u8) ((yres + var->lower_margin +   in i810fb_encode_registers()
170 				 var->vsync_len) & 0x0F);  in i810fb_encode_registers()
173 	n = yres - 1;  in i810fb_encode_registers()
174 	par->regs.cr12 = (u8) (n & 0xFF);  in i810fb_encode_registers()
175 	par->regs.cr31 = (u8) ((n >> 8) & 0x0F);  in i810fb_encode_registers()
178 	blank_e = yres + var->lower_margin + var->vsync_len +   in i810fb_encode_registers()
179 		var->upper_margin;  in i810fb_encode_registers()
180 	blank_e--;  in i810fb_encode_registers()
181 	blank_s = blank_e - 127;  in i810fb_encode_registers()
184 	par->regs.cr15 = (u8) (blank_s & 0xFF);  in i810fb_encode_registers()
185 	par->regs.cr33 = (u8) ((blank_s >> 8) & 0x0F);  in i810fb_encode_registers()
186 	par->regs.cr16 = (u8) (blank_e & 0xFF);  in i810fb_encode_registers()
187 	par->regs.cr09 = 0;	  in i810fb_encode_registers()
189 	/* sync polarity */  in i810fb_encode_registers()
190 	if (!(var->sync & FB_SYNC_HOR_HIGH_ACT))  in i810fb_encode_registers()
192 	if (!(var->sync & FB_SYNC_VERT_HIGH_ACT))  in i810fb_encode_registers()
194 	par->regs.msr = msr;  in i810fb_encode_registers()
197 	if (var->vmode & FB_VMODE_INTERLACED)   in i810fb_encode_registers()
198 		par->interlace = (1 << 7) | ((u8) (var->yres >> 4));  in i810fb_encode_registers()
200 		par->interlace = 0;  in i810fb_encode_registers()
202 	if (var->vmode & FB_VMODE_DOUBLE)  in i810fb_encode_registers()
203 		par->regs.cr09 |= 1 << 7;  in i810fb_encode_registers()
206 	par->ovract = ((var->xres + var->right_margin + var->hsync_len +   in i810fb_encode_registers()
207 			var->left_margin - 32) | ((var->xres - 32) << 16));  in i810fb_encode_registers()
213  * i810_get_watermark - gets watermark
230 	if (par->mem_freq == 100) {  in i810_get_watermark()
231 		switch (var->bits_per_pixel) {   in i810_get_watermark()
246 		switch(var->bits_per_pixel) {  in i810_get_watermark()
262 	pixclock = 1000000/var->pixclock;  in i810_get_watermark()
265 		if (pixclock <= wmark[i].freq)   in i810_get_watermark()
266 			diff = wmark[i].freq - pixclock;  in i810_get_watermark()
268 			diff = pixclock - wmark[i].freq;  in i810_get_watermark()