96 static int edid_is_serial_block(unsigned char *block)  in edid_is_serial_block()  argument
98 	if ((block[0] == 0x00) && (block[1] == 0x00) &&  in edid_is_serial_block()
99 	    (block[2] == 0x00) && (block[3] == 0xff) &&  in edid_is_serial_block()
100 	    (block[4] == 0x00))  in edid_is_serial_block()
106 static int edid_is_ascii_block(unsigned char *block)  in edid_is_ascii_block()  argument
108 	if ((block[0] == 0x00) && (block[1] == 0x00) &&  in edid_is_ascii_block()
109 	    (block[2] == 0x00) && (block[3] == 0xfe) &&  in edid_is_ascii_block()
110 	    (block[4] == 0x00))  in edid_is_ascii_block()
116 static int edid_is_limits_block(unsigned char *block)  in edid_is_limits_block()  argument
118 	if ((block[0] == 0x00) && (block[1] == 0x00) &&  in edid_is_limits_block()
119 	    (block[2] == 0x00) && (block[3] == 0xfd) &&  in edid_is_limits_block()
120 	    (block[4] == 0x00))  in edid_is_limits_block()
126 static int edid_is_monitor_block(unsigned char *block)  in edid_is_monitor_block()  argument
128 	if ((block[0] == 0x00) && (block[1] == 0x00) &&  in edid_is_monitor_block()
129 	    (block[2] == 0x00) && (block[3] == 0xfc) &&  in edid_is_monitor_block()
130 	    (block[4] == 0x00))  in edid_is_monitor_block()
136 static int edid_is_timing_block(unsigned char *block)  in edid_is_timing_block()  argument
138 	if ((block[0] != 0x00) || (block[1] != 0x00) ||  in edid_is_timing_block()
139 	    (block[2] != 0x00) || (block[4] != 0x00))  in edid_is_timing_block()
147 	unsigned char *block = edid + ID_MANUFACTURER_NAME, manufacturer[4];  in check_edid()  local
152 	manufacturer[0] = ((block[0] & 0x7c) >> 2) + '@';  in check_edid()
153 	manufacturer[1] = ((block[0] & 0x03) << 3) +  in check_edid()
154 		((block[1] & 0xe0) >> 5) + '@';  in check_edid()
155 	manufacturer[2] = (block[1] & 0x1f) + '@';  in check_edid()
157 	model = block[2] + (block[3] << 8);  in check_edid()
292 static void parse_vendor_block(unsigned char *block, struct fb_monspecs *specs)  in parse_vendor_block()  argument
294 	specs->manufacturer[0] = ((block[0] & 0x7c) >> 2) + '@';  in parse_vendor_block()
295 	specs->manufacturer[1] = ((block[0] & 0x03) << 3) +  in parse_vendor_block()
296 		((block[1] & 0xe0) >> 5) + '@';  in parse_vendor_block()
297 	specs->manufacturer[2] = (block[1] & 0x1f) + '@';  in parse_vendor_block()
299 	specs->model = block[2] + (block[3] << 8);  in parse_vendor_block()
300 	specs->serial = block[4] + (block[5] << 8) +  in parse_vendor_block()
301 	       (block[6] << 16) + (block[7] << 24);  in parse_vendor_block()
302 	specs->year = block[9] + 1990;  in parse_vendor_block()
303 	specs->week = block[8];  in parse_vendor_block()
326 static void get_chroma(unsigned char *block, struct fb_monspecs *specs)  in get_chroma()  argument
332 	tmp = ((block[5] & (3 << 6)) >> 6) | (block[0x7] << 2);  in get_chroma()
338 	tmp = ((block[5] & (3 << 4)) >> 4) | (block[0x8] << 2);  in get_chroma()
344 	tmp = ((block[5] & (3 << 2)) >> 2) | (block[0x9] << 2);  in get_chroma()
350 	tmp = (block[5] & 3) | (block[0xa] << 2);  in get_chroma()
356 	tmp = ((block[6] & (3 << 6)) >> 6) | (block[0xb] << 2);  in get_chroma()
362 	tmp = ((block[6] & (3 << 4)) >> 4) | (block[0xc] << 2);  in get_chroma()
368 	tmp = ((block[6] & (3 << 2)) >> 2) | (block[0xd] << 2);  in get_chroma()
374 	tmp = (block[6] & 3) | (block[0xe] << 2);  in get_chroma()
409 static int get_est_timing(unsigned char *block, struct fb_videomode *mode)  in get_est_timing()  argument
414 	c = block[0];  in get_est_timing()
451 	c = block[1];  in get_est_timing()
485 	c = block[2];  in get_est_timing()
494 static int get_std_timing(unsigned char *block, struct fb_videomode *mode,  in get_std_timing()  argument
500 		u32 std_2byte_code = block[0] << 8 | block[1];  in get_std_timing()
514 		xres = (block[0] + 31) * 8;  in get_std_timing()
518 		ratio = (block[1] & 0xc0) >> 6;  in get_std_timing()
537 		refresh = (block[1] & 0x3f) + 60;  in get_std_timing()
553 static int get_dst_timing(unsigned char *block, struct fb_videomode *mode,  in get_dst_timing()  argument
558 	for (j = 0; j < 6; j++, block += STD_TIMING_DESCRIPTION_SIZE)  in get_dst_timing()
559 		num += get_std_timing(block, &mode[num], ver, rev, specs);  in get_dst_timing()
564 static void get_detailed_timing(unsigned char *block,  in get_detailed_timing()  argument
620 	unsigned char *block;  in fb_create_modedb()  local
640 	block = edid + DETAILED_TIMING_DESCRIPTIONS_START;  in fb_create_modedb()
641 	for (i = 0; i < 4; i++, block+= DETAILED_TIMING_DESCRIPTION_SIZE) {  in fb_create_modedb()
642 		if (!(block[0] == 0x00 && block[1] == 0x00)) {  in fb_create_modedb()
643 			get_detailed_timing(block, &mode[num]);  in fb_create_modedb()
653 	block = edid + ESTABLISHED_TIMING_1;  in fb_create_modedb()
654 	num += get_est_timing(block, &mode[num]);  in fb_create_modedb()
657 	block = edid + STD_TIMING_DESCRIPTIONS_START;  in fb_create_modedb()
658 	for (i = 0; i < STD_TIMING; i++, block += STD_TIMING_DESCRIPTION_SIZE)  in fb_create_modedb()
659 		num += get_std_timing(block, &mode[num], ver, rev, specs);  in fb_create_modedb()
661 	block = edid + DETAILED_TIMING_DESCRIPTIONS_START;  in fb_create_modedb()
662 	for (i = 0; i < 4; i++, block+= DETAILED_TIMING_DESCRIPTION_SIZE) {  in fb_create_modedb()
663 		if (block[0] == 0x00 && block[1] == 0x00 && block[3] == 0xfa)  in fb_create_modedb()
664 			num += get_dst_timing(block + 5, &mode[num],  in fb_create_modedb()
698 	unsigned char *block;  in fb_get_monitor_limits()  local
700 	block = edid + DETAILED_TIMING_DESCRIPTIONS_START;  in fb_get_monitor_limits()
704 	for (i = 0; i < 4; i++, block += DETAILED_TIMING_DESCRIPTION_SIZE) {  in fb_get_monitor_limits()
705 		if (edid_is_limits_block(block)) {  in fb_get_monitor_limits()
778 	unsigned char c, *block;  in get_monspecs()  local
780 	block = edid + EDID_STRUCT_DISPLAY;  in get_monspecs()
784 	c = block[0] & 0x80;  in get_monspecs()
791 		switch ((block[0] & 0x60) >> 5) {  in get_monspecs()
811 	c = block[0] & 0x10;  in get_monspecs()
814 	c = block[0] & 0x0f;  in get_monspecs()
837 	specs->max_x = block[1];  in get_monspecs()
838 	specs->max_y = block[2];  in get_monspecs()
850 	c = block[3];  in get_monspecs()
855 	get_dpms_capabilities(block[4], specs);  in get_monspecs()
857 	switch ((block[4] & 0x18) >> 3) {  in get_monspecs()
876 	get_chroma(block, specs);  in get_monspecs()
879 	c = block[4] & 0x7;  in get_monspecs()
897 	unsigned char *block;  in fb_parse_edid()  local
908 	block = edid + DETAILED_TIMING_DESCRIPTIONS_START;  in fb_parse_edid()
910 	for (i = 0; i < 4; i++, block += DETAILED_TIMING_DESCRIPTION_SIZE) {  in fb_parse_edid()
911 		if (edid_is_timing_block(block)) {  in fb_parse_edid()
939 	unsigned char *block;  in fb_edid_to_monspecs()  local
964 	block = edid + DETAILED_TIMING_DESCRIPTIONS_START;  in fb_edid_to_monspecs()
965 	for (i = 0; i < 4; i++, block += DETAILED_TIMING_DESCRIPTION_SIZE) {  in fb_edid_to_monspecs()
966 		if (edid_is_serial_block(block)) {  in fb_edid_to_monspecs()
967 			copy_string(block, specs->serial_no);  in fb_edid_to_monspecs()
969 		} else if (edid_is_ascii_block(block)) {  in fb_edid_to_monspecs()
970 			copy_string(block, specs->ascii);  in fb_edid_to_monspecs()
972 		} else if (edid_is_monitor_block(block)) {  in fb_edid_to_monspecs()
973 			copy_string(block, specs->monitor);  in fb_edid_to_monspecs()