31 	u16 i2c = 0x0000;  in dcb_i2c_table()
34 		if (*ver >= 0x15)  in dcb_i2c_table()
36 		if (*ver >= 0x30)  in dcb_i2c_table()
40 	if (i2c && *ver >= 0x42) {  in dcb_i2c_table()
42 		return 0x0000;  in dcb_i2c_table()
45 	if (i2c && *ver >= 0x30) {  in dcb_i2c_table()
46 		*ver = nvbios_rd08(bios, i2c + 0);  in dcb_i2c_table()
52 		*hdr = 0;  in dcb_i2c_table()
67 	return 0x0000;  in dcb_i2c_entry()
77 		if (ver >= 0x41) {  in dcb_i2c_parse()
79 			u8 i2c_port = (ent_value >> 0) & 0x1f;  in dcb_i2c_parse()
80 			u8 dpaux_port = (ent_value >> 5) & 0x1f;  in dcb_i2c_parse()
81 			/* value 0x1f means unused according to DCB 4.x spec */  in dcb_i2c_parse()
82 			if (i2c_port == 0x1f && dpaux_port == 0x1f)  in dcb_i2c_parse()
87 		if (ver >= 0x30) {  in dcb_i2c_parse()
88 			info->type = nvbios_rd08(bios, ent + 0x03);  in dcb_i2c_parse()
90 			info->type = nvbios_rd08(bios, ent + 0x03) & 0x07;  in dcb_i2c_parse()
91 			if (info->type == 0x07)  in dcb_i2c_parse()
102 			info->drive = nvbios_rd08(bios, ent + 0);  in dcb_i2c_parse()
104 			return 0;  in dcb_i2c_parse()
107 			return 0;  in dcb_i2c_parse()
109 			info->drive = nvbios_rd08(bios, ent + 0) & 0x0f;  in dcb_i2c_parse()
110 			if (nvbios_rd08(bios, ent + 1) & 0x01)  in dcb_i2c_parse()
112 			return 0;  in dcb_i2c_parse()
114 			info->auxch = nvbios_rd08(bios, ent + 0) & 0x0f;  in dcb_i2c_parse()
115 			if (nvbios_rd08(bios, ent + 1) & 0x01)  in dcb_i2c_parse()
117 			return 0;  in dcb_i2c_parse()
119 			info->drive = (nvbios_rd16(bios, ent + 0) & 0x01f) >> 0;  in dcb_i2c_parse()
120 			if (info->drive == 0x1f)  in dcb_i2c_parse()
122 			info->auxch = (nvbios_rd16(bios, ent + 0) & 0x3e0) >> 5;  in dcb_i2c_parse()
123 			if (info->auxch == 0x1f)  in dcb_i2c_parse()
126 			return 0;  in dcb_i2c_parse()
128 			return 0;  in dcb_i2c_parse()
132 			return 0;  in dcb_i2c_parse()
137 		/* BMP (from v4.0 has i2c info in the structure, it's in a  in dcb_i2c_parse()
141 			ent = 0x0048;  in dcb_i2c_parse()
143 			ent = 0x0036 + bios->bmp_offset;  in dcb_i2c_parse()
145 		if (idx == 0) {  in dcb_i2c_parse()
147 			if (!info->drive) info->drive = 0x3f;  in dcb_i2c_parse()
149 			if (!info->sense) info->sense = 0x3e;  in dcb_i2c_parse()
153 			if (!info->drive) info->drive = 0x37;  in dcb_i2c_parse()
155 			if (!info->sense) info->sense = 0x36;  in dcb_i2c_parse()
160 		return 0;  in dcb_i2c_parse()