1 /* A simple I2C slave for returning monitor EDID data via DDC. 2 * 3 * Copyright (c) 2011 Linaro Limited 4 * Written by Peter Maydell 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License along 16 * with this program; if not, see <http://www.gnu.org/licenses/>. 17 */ 18 19 #ifndef I2C_DDC_H 20 #define I2C_DDC_H 21 22 #include "hw/display/edid.h" 23 24 /* A simple I2C slave which just returns the contents of its EDID blob. */ 25 struct I2CDDCState { 26 /*< private >*/ 27 I2CSlave i2c; 28 /*< public >*/ 29 bool firstbyte; 30 uint8_t reg; 31 qemu_edid_info edid_info; 32 uint8_t edid_blob[128]; 33 }; 34 35 typedef struct I2CDDCState I2CDDCState; 36 37 #define TYPE_I2CDDC "i2c-ddc" 38 #define I2CDDC(obj) OBJECT_CHECK(I2CDDCState, (obj), TYPE_I2CDDC) 39 40 #endif /* I2C_DDC_H */ 41