include/hw/char/bcm2835_aux.h

   1 /*
   2  * Rasperry Pi 2 emulation and refactoring Copyright (c) 2015, Microsoft
   3  * Written by Andrew Baumann
   4  *
   5  * This code is licensed under the GNU GPLv2 and later.
   6  */
   7
   8 #ifndef BCM2835_AUX_H
   9 #define BCM2835_AUX_H
  10
  11 #include "hw/sysbus.h"
  12 #include "chardev/char-fe.h"
  13
  14 #define TYPE_BCM2835_AUX "bcm2835-aux"
  15 #define BCM2835_AUX(obj) OBJECT_CHECK(BCM2835AuxState, (obj), TYPE_BCM2835_AUX)
  16
  17 #define BCM2835_AUX_RX_FIFO_LEN 8
  18
  19 typedef struct {
  20     /*< private >*/
  21     SysBusDevice parent_obj;
  22     /*< public >*/
  23
  24     MemoryRegion iomem;
  25     CharBackend chr;
  26     qemu_irq irq;
  27
  28     uint8_t read_fifo[BCM2835_AUX_RX_FIFO_LEN];
  29     uint8_t read_pos, read_count;
  30     uint8_t ier, iir;
  31 } BCM2835AuxState;
  32
  33 #endif