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Last change
on this file since 22 was 22, checked in by ogrimm, 16 years ago |
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First commit of drsdaq program
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File size:
1.6 KB
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| 1 | SIS3100_SETVMESPACE:
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| 2 |
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| 3 | struct vmespace {
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| 4 | int32_t am; /* address modifier */
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| 5 | u_int32_t datasize;/* datasize in bytes (?) */
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| 6 | int swap; /* 1: swap words 0: don't swap -1: not changed */
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| 7 | int mapit; /* not used */
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| 8 | ssize_t mindmalen; /*
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| 9 | 0: never use DMA;
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| 10 | 1: always use DMA;
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| 11 | -1: not changed
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| 12 | >0: use DMA if size > mindmalen
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| 13 | */
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| 14 | };
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| 15 |
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| 16 |
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| 17 | SIS3100_VME_PROBE (u_int32_t addr):
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| 18 | performes a VME read with default parameters (set via SETVMESPACE) at
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| 19 | address addr.
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| 20 | return values:
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| 21 | ENXIO: remote device not present/remote device is not VME
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| 22 | EIO: address not accessible (probably bus error)
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| 23 |
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| 24 | SIS3100_VME_READ (struct sis1100_vme_req req)
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| 25 | performes a VME read with parameters defined by req.
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| 26 | return values:
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| 27 | ENXIO: remote device not present/remote device is not VME
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| 28 | returned structure:
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| 29 | error: errorcode from remote (or local) interface
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| 30 | data: if (error==0)
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| 31 | value red
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| 32 | else
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| 33 | undefined
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| 34 |
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| 35 | SIS3100_VME_WRITE (struct sis1100_vme_req req)
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| 36 | performes a VME write with parameters defined by req.
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| 37 | return values:
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| 38 | ENXIO: remote device not present/remote device is not VME
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| 39 | returned structure:
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| 40 | error: errorcode from remote (or local) interface
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| 41 |
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| 42 | case SIS3100_WRITE_PIPE (struct sis1100_writepipe)
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| 43 | performes several VME writes in a pipeline
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| 44 | return values:
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| 45 | EINVAL: list too long (96 entries are allowed)
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| 46 | ENXIO: remote device not present/remote device is not VME
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| 47 | EFAULT: *data is not accessible
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