LXR qemu/include/hw/misc/zynq-xadc.h

   1/*
   2 * Device model for Zynq ADC controller
   3 *
   4 * Copyright (c) 2015 Guenter Roeck <linux@roeck-us.net>
   5 *
   6 * This program is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU General Public License
   8 * as published by the Free Software Foundation; either version
   9 * 2 of the License, or (at your option) any later version.
  10 *
  11 * You should have received a copy of the GNU General Public License along
  12 * with this program; if not, see <http://www.gnu.org/licenses/>.
  13 */
  14
  15#ifndef ZYNQ_XADC_H
  16#define ZYNQ_XADC_H
  17
  18#include "hw/sysbus.h"
  19
  20#define ZYNQ_XADC_MMIO_SIZE     0x0020
  21#define ZYNQ_XADC_NUM_IO_REGS   (ZYNQ_XADC_MMIO_SIZE / 4)
  22#define ZYNQ_XADC_NUM_ADC_REGS  128
  23#define ZYNQ_XADC_FIFO_DEPTH    15
  24
  25#define TYPE_ZYNQ_XADC          "xlnx,zynq-xadc"
  26#define ZYNQ_XADC(obj) \
  27    OBJECT_CHECK(ZynqXADCState, (obj), TYPE_ZYNQ_XADC)
  28
  29typedef struct ZynqXADCState {
  30    /*< private >*/
  31    SysBusDevice parent_obj;
  32
  33    /*< public >*/
  34    MemoryRegion iomem;
  35
  36    uint32_t regs[ZYNQ_XADC_NUM_IO_REGS];
  37    uint16_t xadc_regs[ZYNQ_XADC_NUM_ADC_REGS];
  38    uint16_t xadc_read_reg_previous;
  39    uint16_t xadc_dfifo[ZYNQ_XADC_FIFO_DEPTH];
  40    uint16_t xadc_dfifo_entries;
  41
  42    struct IRQState *qemu_irq;
  43
  44} ZynqXADCState;
  45
  46#endif /* ZYNQ_XADC_H */
  47