| 1 | /* |
| 2 | * Raspberry Pi emulation (c) 2012 Gregory Estrade |
| 3 | * |
| 4 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| 5 | * See the COPYING file in the top-level directory. |
| 6 | */ |
| 7 | |
| 8 | #ifndef BCM2835_DMA_H |
| 9 | #define BCM2835_DMA_H |
| 10 | |
| 11 | #include "hw/core/sysbus.h" |
| 12 | #include "qom/object.h" |
| 13 | |
| 14 | typedef struct { |
| 15 | uint32_t cs; |
| 16 | uint32_t conblk_ad; |
| 17 | uint32_t ti; |
| 18 | uint32_t source_ad; |
| 19 | uint32_t dest_ad; |
| 20 | uint32_t txfr_len; |
| 21 | uint32_t stride; |
| 22 | uint32_t nextconbk; |
| 23 | uint32_t debug; |
| 24 | |
| 25 | qemu_irq irq; |
| 26 | } BCM2835DMAChan; |
| 27 | |
| 28 | #define TYPE_BCM2835_DMA "bcm2835-dma" |
| 29 | OBJECT_DECLARE_SIMPLE_TYPE(BCM2835DMAState, BCM2835_DMA) |
| 30 | |
| 31 | #define BCM2835_DMA_NCHANS 16 |
| 32 | |
| 33 | struct BCM2835DMAState { |
| 34 | /*< private >*/ |
| 35 | SysBusDevice busdev; |
| 36 | /*< public >*/ |
| 37 | |
| 38 | MemoryRegion iomem0, iomem15; |
| 39 | MemoryRegion *dma_mr; |
| 40 | AddressSpace dma_as; |
| 41 | |
| 42 | BCM2835DMAChan chan[BCM2835_DMA_NCHANS]; |
| 43 | uint32_t int_status; |
| 44 | uint32_t enable; |
| 45 | }; |
| 46 | |
| 47 | #endif |