include/hw/i2c/ppc4xx_i2c.h

   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
  33 #define TYPE_PPC4xx_I2C "ppc4xx-i2c"
  34 #define PPC4xx_I2C(obj) OBJECT_CHECK(PPC4xxI2CState, (obj), TYPE_PPC4xx_I2C)
  35
  36 typedef struct PPC4xxI2CState {
  37     /*< private >*/
  38     SysBusDevice parent_obj;
  39
  40     /*< public >*/
  41     I2CBus *bus;
  42     qemu_irq irq;
  43     MemoryRegion iomem;
  44     bitbang_i2c_interface bitbang;
  45     int mdidx;
  46     uint8_t mdata[4];
  47     uint8_t lmadr;
  48     uint8_t hmadr;
  49     uint8_t cntl;
  50     uint8_t mdcntl;
  51     uint8_t sts;
  52     uint8_t extsts;
  53     uint8_t lsadr;
  54     uint8_t hsadr;
  55     uint8_t clkdiv;
  56     uint8_t intrmsk;
  57     uint8_t xfrcnt;
  58     uint8_t xtcntlss;
  59     uint8_t directcntl;
  60 } PPC4xxI2CState;
  61
  62 #endif /* PPC4XX_I2C_H */