LXR qemu/include/hw/ssi/pl022.h

   1/*
   2 * ARM PrimeCell PL022 Synchronous Serial Port
   3 *
   4 * Copyright (c) 2007 CodeSourcery.
   5 * Written by Paul Brook
   6 *
   7 * This program is free software; you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License version 2 or
   9 * (at your option) any later version.
  10 */
  11
  12/* This is a model of the Arm PrimeCell PL022 synchronous serial port.
  13 * The PL022 TRM is:
  14 * http://infocenter.arm.com/help/topic/com.arm.doc.ddi0194h/DDI0194H_ssp_pl022_trm.pdf
  15 *
  16 * QEMU interface:
  17 * + sysbus IRQ: SSPINTR combined interrupt line
  18 * + sysbus MMIO region 0: MemoryRegion for the device's registers
  19 */
  20
  21#ifndef HW_SSI_PL022_H
  22#define HW_SSI_PL022_H
  23
  24#include "hw/sysbus.h"
  25
  26#define TYPE_PL022 "pl022"
  27#define PL022(obj) OBJECT_CHECK(PL022State, (obj), TYPE_PL022)
  28
  29typedef struct PL022State {
  30    SysBusDevice parent_obj;
  31
  32    MemoryRegion iomem;
  33    uint32_t cr0;
  34    uint32_t cr1;
  35    uint32_t bitmask;
  36    uint32_t sr;
  37    uint32_t cpsr;
  38    uint32_t is;
  39    uint32_t im;
  40    /* The FIFO head points to the next empty entry.  */
  41    int tx_fifo_head;
  42    int rx_fifo_head;
  43    int tx_fifo_len;
  44    int rx_fifo_len;
  45    uint16_t tx_fifo[8];
  46    uint16_t rx_fifo[8];
  47    qemu_irq irq;
  48    SSIBus *ssi;
  49} PL022State;
  50
  51#endif
  52