1 /* 2 * PPC4xx I2C controller emulation 3 * 4 * Copyright (c) 2007 Jocelyn Mayer 5 * Copyright (c) 2012 François Revol 6 * Copyright (c) 2016-2018 BALATON Zoltan 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a copy 9 * of this software and associated documentation files (the "Software"), to deal 10 * in the Software without restriction, including without limitation the rights 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12 * copies of the Software, and to permit persons to whom the Software is 13 * furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice shall be included in 16 * all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 24 * THE SOFTWARE. 25 */ 26 27 #ifndef PPC4XX_I2C_H 28 #define PPC4XX_I2C_H 29 30 #include "hw/sysbus.h" 31 #include "hw/i2c/bitbang_i2c.h" 32 #include "qom/object.h" 33 34 #define TYPE_PPC4xx_I2C "ppc4xx-i2c" 35 typedef struct PPC4xxI2CState PPC4xxI2CState; 36 DECLARE_INSTANCE_CHECKER(PPC4xxI2CState, PPC4xx_I2C, 37 TYPE_PPC4xx_I2C) 38 39 struct PPC4xxI2CState { 40 /*< private >*/ 41 SysBusDevice parent_obj; 42 43 /*< public >*/ 44 I2CBus *bus; 45 qemu_irq irq; 46 MemoryRegion iomem; 47 bitbang_i2c_interface bitbang; 48 int mdidx; 49 uint8_t mdata[4]; 50 uint8_t lmadr; 51 uint8_t hmadr; 52 uint8_t cntl; 53 uint8_t mdcntl; 54 uint8_t sts; 55 uint8_t extsts; 56 uint8_t lsadr; 57 uint8_t hsadr; 58 uint8_t clkdiv; 59 uint8_t intrmsk; 60 uint8_t xfrcnt; 61 uint8_t xtcntlss; 62 uint8_t directcntl; 63 }; 64 65 #endif /* PPC4XX_I2C_H */ 66