include/hw/dma/bcm2835_dma.h

   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
  11 typedef 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
  31 typedef 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