1 // SPDX-License-Identifier: GPL-2.0
136  *  - build some kind of vgacon with it to enable early printk
137  *  - move to a separate file
138  *  - add a few video driver hooks to keep in sync with display
152 	offset = ((unsigned long) dispDeviceBase) - base;  in btext_map()
166 	const u32 *prop;  in btext_initialize()  local
168 	prop = of_get_property(np, "linux,bootx-width", NULL);  in btext_initialize()
169 	if (prop == NULL)  in btext_initialize()
170 		prop = of_get_property(np, "width", NULL);  in btext_initialize()
171 	if (prop == NULL)  in btext_initialize()
172 		return -EINVAL;  in btext_initialize()
173 	width = *prop;  in btext_initialize()
174 	prop = of_get_property(np, "linux,bootx-height", NULL);  in btext_initialize()
175 	if (prop == NULL)  in btext_initialize()
176 		prop = of_get_property(np, "height", NULL);  in btext_initialize()
177 	if (prop == NULL)  in btext_initialize()
178 		return -EINVAL;  in btext_initialize()
179 	height = *prop;  in btext_initialize()
180 	prop = of_get_property(np, "linux,bootx-depth", NULL);  in btext_initialize()
181 	if (prop == NULL)  in btext_initialize()
182 		prop = of_get_property(np, "depth", NULL);  in btext_initialize()
183 	if (prop == NULL)  in btext_initialize()
184 		return -EINVAL;  in btext_initialize()
185 	depth = *prop;  in btext_initialize()
187 	prop = of_get_property(np, "linux,bootx-linebytes", NULL);  in btext_initialize()
188 	if (prop == NULL)  in btext_initialize()
189 		prop = of_get_property(np, "linebytes", NULL);  in btext_initialize()
190 	if (prop && *prop != 0xffffffffu)  in btext_initialize()
191 		pitch = *prop;  in btext_initialize()
194 	prop = of_get_property(np, "linux,bootx-addr", NULL);  in btext_initialize()
195 	if (prop == NULL)  in btext_initialize()
196 		prop = of_get_property(np, "address", NULL);  in btext_initialize()
197 	if (prop)  in btext_initialize()
198 		address = *prop;  in btext_initialize()
204 		return -EINVAL;  in btext_initialize()
225 	int rc = -ENODEV;  in btext_find_display()
296 	unsigned long width 	= ((dispDeviceRect[2] - dispDeviceRect[0]) *  in btext_clearscreen()
301 	for (i=0; i<(dispDeviceRect[3] - dispDeviceRect[1]); i++)  in btext_clearscreen()
304 		for(j=width; j; --j)  in btext_clearscreen()
314 	unsigned long width 	= ((dispDeviceRect[2] - dispDeviceRect[0]) *  in btext_flushscreen()
318 	for (i=0; i < (dispDeviceRect[3] - dispDeviceRect[1]); i++)  in btext_flushscreen()
321 		for(j = width; j > 0; j -= 8) {  in btext_flushscreen()
333 	unsigned long width 	= ((dispDeviceRect[2] - dispDeviceRect[0]) *  in btext_flushline()
340 		for(j = width; j > 0; j -= 8) {  in btext_flushline()
355 	unsigned long width    	= ((dispDeviceRect[2] - dispDeviceRect[0]) *  in scrollscreen()
361 	for (i=0; i<(dispDeviceRect[3] - dispDeviceRect[1] - 16); i++)  in scrollscreen()
365 		for(j=width; j; --j)  in scrollscreen()
373 		for(j=width; j; --j)  in scrollscreen()
418 		base[0] = (-(bits >> 7) & fg) ^ bg;  in draw_byte_32()
419 		base[1] = (-((bits >> 6) & 1) & fg) ^ bg;  in draw_byte_32()
420 		base[2] = (-((bits >> 5) & 1) & fg) ^ bg;  in draw_byte_32()
421 		base[3] = (-((bits >> 4) & 1) & fg) ^ bg;  in draw_byte_32()
422 		base[4] = (-((bits >> 3) & 1) & fg) ^ bg;  in draw_byte_32()
423 		base[5] = (-((bits >> 2) & 1) & fg) ^ bg;  in draw_byte_32()
424 		base[6] = (-((bits >> 1) & 1) & fg) ^ bg;  in draw_byte_32()
425 		base[7] = (-(bits & 1) & fg) ^ bg;  in draw_byte_32()
500 			--g_loc_X;  in btext_drawchar()
503 		g_loc_X = (g_loc_X & -8) + 8;  in btext_drawchar()
524 		g_loc_Y--;  in btext_drawchar()
528 	   waste time scrolling each line.  -- paulus. */  in btext_drawchar()
550 	while (len--)  in btext_drawtext()