LXR qemu/include/hw/char/cadence

   1/*
   2 * Device model for Cadence UART
   3 *
   4 * Copyright (c) 2010 Xilinx Inc.
   5 * Copyright (c) 2012 Peter A.G. Crosthwaite (peter.crosthwaite@petalogix.com)
   6 * Copyright (c) 2012 PetaLogix Pty Ltd.
   7 * Written by Haibing Ma
   8 *            M.Habib
   9 *
  10 * This program is free software; you can redistribute it and/or
  11 * modify it under the terms of the GNU General Public License
  12 * as published by the Free Software Foundation; either version
  13 * 2 of the License, or (at your option) any later version.
  14 *
  15 * You should have received a copy of the GNU General Public License along
  16 * with this program; if not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19#ifndef CADENCE_UART_H
  20#define CADENCE_UART_H
  21
  22#include "hw/qdev-properties.h"
  23#include "hw/sysbus.h"
  24#include "chardev/char-fe.h"
  25#include "qapi/error.h"
  26#include "qemu/timer.h"
  27#include "qom/object.h"
  28
  29#define CADENCE_UART_RX_FIFO_SIZE           16
  30#define CADENCE_UART_TX_FIFO_SIZE           16
  31
  32#define CADENCE_UART_R_MAX (0x48/4)
  33
  34#define TYPE_CADENCE_UART "cadence_uart"
  35OBJECT_DECLARE_SIMPLE_TYPE(CadenceUARTState, CADENCE_UART)
  36
  37struct CadenceUARTState {
  38    /*< private >*/
  39    SysBusDevice parent_obj;
  40
  41    /*< public >*/
  42    MemoryRegion iomem;
  43    uint32_t r[CADENCE_UART_R_MAX];
  44    uint8_t rx_fifo[CADENCE_UART_RX_FIFO_SIZE];
  45    uint8_t tx_fifo[CADENCE_UART_TX_FIFO_SIZE];
  46    uint32_t rx_wpos;
  47    uint32_t rx_count;
  48    uint32_t tx_count;
  49    uint64_t char_tx_time;
  50    CharBackend chr;
  51    qemu_irq irq;
  52    QEMUTimer *fifo_trigger_handle;
  53    Clock *refclk;
  54};
  55
  56#endif
  57