53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
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/*
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* Xilinx Platform CSU Stream DMA emulation
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*
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* This implementation is based on
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* https://github.com/Xilinx/qemu/blob/master/hw/dma/csu_stream_dma.c
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 or
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* (at your option) version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef XLNX_CSU_DMA_H
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#define XLNX_CSU_DMA_H
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#define TYPE_XLNX_CSU_DMA "xlnx.csu_dma"
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#define XLNX_CSU_DMA_R_MAX (0x2c / 4)
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typedef struct XlnxCSUDMA {
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SysBusDevice busdev;
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MemoryRegion iomem;
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MemTxAttrs attr;
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MemoryRegion *dma_mr;
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AddressSpace *dma_as;
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qemu_irq irq;
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StreamSink *tx_dev; /* Used as generic StreamSink */
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ptimer_state *src_timer;
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uint16_t width;
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bool is_dst;
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bool r_size_last_word;
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StreamCanPushNotifyFn notify;
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void *notify_opaque;
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uint32_t regs[XLNX_CSU_DMA_R_MAX];
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RegisterInfo regs_info[XLNX_CSU_DMA_R_MAX];
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} XlnxCSUDMA;
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#define XLNX_CSU_DMA(obj) \
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OBJECT_CHECK(XlnxCSUDMA, (obj), TYPE_XLNX_CSU_DMA)
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#endif
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