1 /* 2 * ASPEED AST2400 I2C Controller 3 * 4 * Copyright (C) 2016 IBM Corp. 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 as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License along 17 * with this program; if not, write to the Free Software Foundation, Inc., 18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 19 */ 20 #ifndef ASPEED_I2C_H 21 #define ASPEED_I2C_H 22 23 #include "hw/i2c/i2c.h" 24 25 #define TYPE_ASPEED_I2C "aspeed.i2c" 26 #define ASPEED_I2C(obj) \ 27 OBJECT_CHECK(AspeedI2CState, (obj), TYPE_ASPEED_I2C) 28 29 #define ASPEED_I2C_NR_BUSSES 14 30 31 struct AspeedI2CState; 32 33 typedef struct AspeedI2CBus { 34 struct AspeedI2CState *controller; 35 36 MemoryRegion mr; 37 38 I2CBus *bus; 39 uint8_t id; 40 41 uint32_t ctrl; 42 uint32_t timing[2]; 43 uint32_t intr_ctrl; 44 uint32_t intr_status; 45 uint32_t cmd; 46 uint32_t buf; 47 } AspeedI2CBus; 48 49 typedef struct AspeedI2CState { 50 SysBusDevice parent_obj; 51 52 MemoryRegion iomem; 53 qemu_irq irq; 54 55 uint32_t intr_status; 56 57 AspeedI2CBus busses[ASPEED_I2C_NR_BUSSES]; 58 } AspeedI2CState; 59 60 I2CBus *aspeed_i2c_get_bus(DeviceState *dev, int busnr); 61 62 #endif /* ASPEED_I2C_H */ 63