include/hw/intc/rx_icu.h

   1 /*
   2  * RX Interrupt Control Unit
   3  *
   4  * Copyright (c) 2019 Yoshinori Sato
   5  *
   6  * SPDX-License-Identifier: GPL-2.0-or-later
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms and conditions of the GNU General Public License,
  10  * version 2 or later, as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  15  * more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along with
  18  * this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #ifndef HW_INTC_RX_ICU_H
  22 #define HW_INTC_RX_ICU_H
  23
  24 #include "hw/sysbus.h"
  25 #include "qom/object.h"
  26
  27 enum TRG_MODE {
  28     TRG_LEVEL = 0,
  29     TRG_NEDGE = 1,      /* Falling */
  30     TRG_PEDGE = 2,      /* Raising */
  31     TRG_BEDGE = 3,      /* Both */
  32 };
  33
  34 struct IRQSource {
  35     enum TRG_MODE sense;
  36     int level;
  37 };
  38
  39 enum {
  40     /* Software interrupt request */
  41     SWI = 27,
  42     NR_IRQS = 256
  43 };
  44
  45 struct RXICUState {
  46     /*< private >*/
  47     SysBusDevice parent_obj;
  48     /*< public >*/
  49
  50     MemoryRegion memory;
  51     struct IRQSource src[NR_IRQS];
  52     uint32_t nr_irqs;
  53     uint8_t *map;
  54     uint32_t nr_sense;
  55     uint8_t *init_sense;
  56
  57     uint8_t ir[NR_IRQS];
  58     uint8_t dtcer[NR_IRQS];
  59     uint8_t ier[NR_IRQS / 8];
  60     uint8_t ipr[142];
  61     uint8_t dmasr[4];
  62     uint16_t fir;
  63     uint8_t nmisr;
  64     uint8_t nmier;
  65     uint8_t nmiclr;
  66     uint8_t nmicr;
  67     int16_t req_irq;
  68     qemu_irq _irq;
  69     qemu_irq _fir;
  70     qemu_irq _swi;
  71 };
  72
  73 #define TYPE_RX_ICU "rx-icu"
  74 OBJECT_DECLARE_SIMPLE_TYPE(RXICUState, RX_ICU)
  75
  76 #endif /* RX_ICU_H */