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zynq-xadc.h (1240B)

      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 #include "qom/object.h"
     20 
     21 #define ZYNQ_XADC_MMIO_SIZE     0x0020
     22 #define ZYNQ_XADC_NUM_IO_REGS   (ZYNQ_XADC_MMIO_SIZE / 4)
     23 #define ZYNQ_XADC_NUM_ADC_REGS  128
     24 #define ZYNQ_XADC_FIFO_DEPTH    15
     25 
     26 #define TYPE_ZYNQ_XADC          "xlnx-zynq-xadc"
     27 OBJECT_DECLARE_SIMPLE_TYPE(ZynqXADCState, ZYNQ_XADC)
     28 
     29 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     qemu_irq irq;
     43 };
     44 
     45 #endif /* ZYNQ_XADC_H */