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30 * Simple disk interface for the system console
33 #include <sys/types.h>
41 #include "base/misc.hh"
42 #include "base/trace.hh"
43 #include "dev/disk_image.hh"
44 #include "dev/simple_disk.hh"
45 #include "mem/port.hh"
46 #include "sim/builder.hh"
47 #include "sim/system.hh"
51 SimpleDisk::SimpleDisk(const string
&name
, System
*sys
, DiskImage
*img
)
52 : SimObject(name
), system(sys
), image(img
)
55 SimpleDisk::~SimpleDisk()
60 SimpleDisk::read(Addr addr
, baddr_t block
, int count
) const
62 uint8_t *data
= new uint8_t[SectorSize
* count
];
64 if (count
& (SectorSize
- 1))
65 panic("Not reading a multiple of a sector (count = %d)", count
);
67 for (int i
= 0, j
= 0; i
< count
; i
+= SectorSize
, j
++)
68 image
->read(data
+ i
, block
+ j
);
70 system
->functionalPort
.writeBlob(addr
, data
, count
);
72 DPRINTF(SimpleDisk
, "read block=%#x len=%d\n", (uint64_t)block
, count
);
73 DDUMP(SimpleDiskData
, data
, count
);
79 SimpleDisk::write(Addr addr
, baddr_t block
, int count
)
81 panic("unimplemented!\n");
84 uint8_t *data
= physmem
->dma_addr(addr
, count
);
86 panic("dma out of range! write addr=%#x count=%d\n", addr
, count
);
88 image
->write(data
, block
, count
);
92 BEGIN_DECLARE_SIM_OBJECT_PARAMS(SimpleDisk
)
94 SimObjectParam
<System
*> system
;
95 SimObjectParam
<DiskImage
*> disk
;
97 END_DECLARE_SIM_OBJECT_PARAMS(SimpleDisk
)
99 BEGIN_INIT_SIM_OBJECT_PARAMS(SimpleDisk
)
101 INIT_PARAM(system
, "System pointer"),
102 INIT_PARAM(disk
, "Disk Image")
104 END_INIT_SIM_OBJECT_PARAMS(SimpleDisk
)
106 CREATE_SIM_OBJECT(SimpleDisk
)
108 return new SimpleDisk(getInstanceName(), system
, disk
);
111 REGISTER_SIM_OBJECT("SimpleDisk", SimpleDisk
)