include/hw/i2c/allwinner-i2c.h

   1 /*
   2  *  Allwinner I2C Bus Serial Interface registers definition
   3  *
   4  *  Copyright (C) 2022 Strahinja Jankovic. <strahinja.p.jankovic@gmail.com>
   5  *
   6  *  This file is derived from IMX I2C controller,
   7  *  by Jean-Christophe DUBOIS .
   8  *
   9  *  This program is free software; you can redistribute it and/or modify it
  10  *  under the terms of the GNU General Public License as published by the
  11  *  Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful, but WITHOUT
  15  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  16  *  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  17  *  for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License along
  20  *  with this program; if not, see <http://www.gnu.org/licenses/>.
  21  *
  22  */
  23
  24 #ifndef ALLWINNER_I2C_H
  25 #define ALLWINNER_I2C_H
  26
  27 #include "hw/sysbus.h"
  28 #include "qom/object.h"
  29
  30 #define TYPE_AW_I2C "allwinner.i2c"
  31
  32 /** Allwinner I2C sun6i family and newer (A31, H2+, H3, etc) */
  33 #define TYPE_AW_I2C_SUN6I    TYPE_AW_I2C "-sun6i"
  34
  35 OBJECT_DECLARE_SIMPLE_TYPE(AWI2CState, AW_I2C)
  36
  37 #define AW_I2C_MEM_SIZE         0x24
  38
  39 struct AWI2CState {
  40     /*< private >*/
  41     SysBusDevice parent_obj;
  42
  43     /*< public >*/
  44     MemoryRegion iomem;
  45     I2CBus *bus;
  46     qemu_irq irq;
  47
  48     uint8_t addr;
  49     uint8_t xaddr;
  50     uint8_t data;
  51     uint8_t cntr;
  52     uint8_t stat;
  53     uint8_t ccr;
  54     uint8_t srst;
  55     uint8_t efr;
  56     uint8_t lcr;
  57
  58     bool irq_clear_inverted;
  59 };
  60
  61 #endif /* ALLWINNER_I2C_H */