LXR qemu/include/hw/ssi/mss-spi.h

   1/*
   2 * Microsemi SmartFusion2 SPI
   3 *
   4 * Copyright (c) 2017 Subbaraya Sundeep <sundeep.lkml@gmail.com>
   5 *
   6 * Permission is hereby granted, free of charge, to any person obtaining a copy
   7 * of this software and associated documentation files (the "Software"), to deal
   8 * in the Software without restriction, including without limitation the rights
   9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10 * copies of the Software, and to permit persons to whom the Software is
  11 * furnished to do so, subject to the following conditions:
  12 *
  13 * The above copyright notice and this permission notice shall be included in
  14 * all copies or substantial portions of the Software.
  15 *
  16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22 * THE SOFTWARE.
  23 */
  24
  25#ifndef HW_MSS_SPI_H
  26#define HW_MSS_SPI_H
  27
  28#include "hw/sysbus.h"
  29#include "hw/ssi/ssi.h"
  30#include "qemu/fifo32.h"
  31#include "qom/object.h"
  32
  33#define TYPE_MSS_SPI   "mss-spi"
  34OBJECT_DECLARE_SIMPLE_TYPE(MSSSpiState, MSS_SPI)
  35
  36#define R_SPI_MAX             16
  37
  38struct MSSSpiState {
  39    SysBusDevice parent_obj;
  40
  41    MemoryRegion mmio;
  42
  43    qemu_irq irq;
  44
  45    qemu_irq cs_line;
  46
  47    SSIBus *spi;
  48
  49    Fifo32 rx_fifo;
  50    Fifo32 tx_fifo;
  51
  52    int fifo_depth;
  53    uint32_t frame_count;
  54    bool enabled;
  55
  56    uint32_t regs[R_SPI_MAX];
  57};
  58
  59#endif /* HW_MSS_SPI_H */
  60