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https://github.com/rdolbeau/NuBusFPGA.git
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48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
#ifndef __NUBUSFPGARAMDSKDRVR_H__
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#define __NUBUSFPGARAMDSKDRVR_H__
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#include <Files.h>
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#include <Devices.h>
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#include <Slots.h>
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#include <MacErrors.h>
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#include <MacMemory.h>
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#include <Disks.h>
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#define ENABLE_DMA 1
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#include "NuBusFPGADrvr.h"
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struct RAMDrvContext {
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DrvSts2 drvsts;
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char slot;
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#ifdef ENABLE_DMA
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unsigned int dma_blk_size;
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unsigned int dma_blk_size_mask;
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unsigned int dma_blk_size_shift;
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unsigned long dma_blk_base;
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unsigned long dma_mem_size;
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#endif
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};
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#define DRIVE_SIZE_BYTES ((256ul-8ul)*1024ul*1024ul) // FIXME: mem size minus fb size
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#ifdef ENABLE_DMA
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/* FIXME; should be auto-generated for CSR addresses... */
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/* WARNING: 0x00100800 is the offset to GOBOFB_BASE !! */
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#define DMA_BLK_SIZE (0x00100800 | 0x00)
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#define DMA_BLK_BASE (0x00100800 | 0x04)
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#define DMA_MEM_SIZE (0x00100800 | 0x08)
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//#define DMA_IRQ_CTL (0x00a00800 | 0x0c) // IRQ not connected
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#define DMA_BLK_ADDR (0x00100800 | 0x10)
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#define DMA_DMA_ADDR (0x00100800 | 0x14)
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#define DMA_BLK_CNT (0x00100800 | 0x18)
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#define DMA_STATUS (0x00100800 | 0x2c)
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#define DMA_STATUS_CHECK_BITS (0x01F)
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#endif
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uint32_t rledec(uint32_t* out, const uint32_t* in, const uint32_t len);
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#endif
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