include/hw/i2c/aspeed_i2c.h

   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 */