LXR qemu/include/hw/dma/bcm2835

   1/*
   2 * Raspberry Pi emulation (c) 2012 Gregory Estrade
   3 * This code is licensed under the GNU GPLv2 and later.
   4 */
   5
   6#ifndef BCM2835_DMA_H
   7#define BCM2835_DMA_H
   8
   9#include "hw/sysbus.h"
  10
  11typedef struct {
  12    uint32_t cs;
  13    uint32_t conblk_ad;
  14    uint32_t ti;
  15    uint32_t source_ad;
  16    uint32_t dest_ad;
  17    uint32_t txfr_len;
  18    uint32_t stride;
  19    uint32_t nextconbk;
  20    uint32_t debug;
  21
  22    qemu_irq irq;
  23} BCM2835DMAChan;
  24
  25#define TYPE_BCM2835_DMA "bcm2835-dma"
  26#define BCM2835_DMA(obj) \
  27        OBJECT_CHECK(BCM2835DMAState, (obj), TYPE_BCM2835_DMA)
  28
  29#define BCM2835_DMA_NCHANS 16
  30
  31typedef struct {
  32    /*< private >*/
  33    SysBusDevice busdev;
  34    /*< public >*/
  35
  36    MemoryRegion iomem0, iomem15;
  37    MemoryRegion *dma_mr;
  38    AddressSpace dma_as;
  39
  40    BCM2835DMAChan chan[BCM2835_DMA_NCHANS];
  41    uint32_t int_status;
  42    uint32_t enable;
  43} BCM2835DMAState;
  44
  45#endif
  46