| /* |
| * QEMU model of the ZynqMP generic DMA |
| * |
| * Copyright (c) 2014 Xilinx Inc. |
| * Copyright (c) 2018 FEIMTECH AB |
| * |
| * Written by Edgar E. Iglesias <edgar.iglesias@xilinx.com>, |
| * Francisco Iglesias <francisco.iglesias@feimtech.se> |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| #ifndef XLNX_ZDMA_H |
| #define XLNX_ZDMA_H |
| |
| #include "hw/sysbus.h" |
| #include "hw/register.h" |
| #include "sysemu/dma.h" |
| |
| #define ZDMA_R_MAX (0x204 / 4) |
| |
| typedef enum { |
| DISABLED = 0, |
| ENABLED = 1, |
| PAUSED = 2, |
| } XlnxZDMAState; |
| |
| typedef union { |
| struct { |
| uint64_t addr; |
| uint32_t size; |
| uint32_t attr; |
| }; |
| uint32_t words[4]; |
| } XlnxZDMADescr; |
| |
| typedef struct XlnxZDMA { |
| SysBusDevice parent_obj; |
| MemoryRegion iomem; |
| MemTxAttrs attr; |
| MemoryRegion *dma_mr; |
| AddressSpace *dma_as; |
| qemu_irq irq_zdma_ch_imr; |
| |
| struct { |
| uint32_t bus_width; |
| } cfg; |
| |
| XlnxZDMAState state; |
| bool error; |
| |
| XlnxZDMADescr dsc_src; |
| XlnxZDMADescr dsc_dst; |
| |
| uint32_t regs[ZDMA_R_MAX]; |
| RegisterInfo regs_info[ZDMA_R_MAX]; |
| |
| /* We don't model the common bufs. Must be at least 16 bytes |
| to model write only mode. */ |
| uint8_t buf[2048]; |
| } XlnxZDMA; |
| |
| #define TYPE_XLNX_ZDMA "xlnx.zdma" |
| |
| #define XLNX_ZDMA(obj) \ |
| OBJECT_CHECK(XlnxZDMA, (obj), TYPE_XLNX_ZDMA) |
| |
| #endif /* XLNX_ZDMA_H */ |