include/hw/dma/bcm2835_dma.h

   1 /*
   2  * Raspberry Pi emulation (c) 2012 Gregory Estrade
   3  * Upstreaming code cleanup [including bcm2835_*] (c) 2013 Jan Petrous
   4  *
   5  * Rasperry Pi 2 emulation and refactoring Copyright (c) 2015, Microsoft
   6  * Written by Andrew Baumann
   7  *
   8  * This code is licensed under the GNU GPLv2 and later.
   9  */
  10
  11 #ifndef BCM2835_DMA_H
  12 #define BCM2835_DMA_H
  13
  14 #include "qemu-common.h"
  15 #include "exec/address-spaces.h"
  16 #include "hw/sysbus.h"
  17
  18 typedef struct {
  19     uint32_t cs;
  20     uint32_t conblk_ad;
  21     uint32_t ti;
  22     uint32_t source_ad;
  23     uint32_t dest_ad;
  24     uint32_t txfr_len;
  25     uint32_t stride;
  26     uint32_t nextconbk;
  27     uint32_t debug;
  28
  29     qemu_irq irq;
  30 } BCM2835DmaChan;
  31
  32 #define TYPE_BCM2835_DMA "bcm2835_dma"
  33 #define BCM2835_DMA(obj) \
  34         OBJECT_CHECK(BCM2835DmaState, (obj), TYPE_BCM2835_DMA)
  35
  36 typedef struct {
  37     SysBusDevice busdev;
  38     MemoryRegion iomem0_14;
  39     MemoryRegion iomem15;
  40     MemoryRegion *dma_mr;
  41     AddressSpace dma_as;
  42
  43     BCM2835DmaChan chan[16];
  44     uint32_t int_status;
  45     uint32_t enable;
  46 } BCM2835DmaState;
  47
  48 #endif