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| author | Ben Collins <bcollins@ubuntu.com> | 2006-06-12 18:13:21 -0400 |
|---|---|---|
| committer | Ben Collins <bcollins@ubuntu.com> | 2006-06-12 18:13:21 -0400 |
| commit | 8aef63ff033fb0e7ba02d8e760d268eb0aafc58c (patch) | |
| tree | 0e458c802e8e409c29fb53752b93b757b1a141c7 /drivers/ieee1394 | |
| parent | 20f4578156995e95613497baf16d5b2d54921e5d (diff) | |
| download | linux-8aef63ff033fb0e7ba02d8e760d268eb0aafc58c.tar.gz linux-8aef63ff033fb0e7ba02d8e760d268eb0aafc58c.tar.bz2 linux-8aef63ff033fb0e7ba02d8e760d268eb0aafc58c.zip | |
ieee1394: extend lowlevel API for address range properties
Host adapter hardware imposes certain restrictions and features on
address ranges. Instead of hard-wire such ranges into the ieee1394
core or even into protocol drivers, let lowlevel drivers specify
these ranges via struct hpsb_host.
Patch "ohci1394: set address range properties" must be applied too,
else hpsb_allocate_and_register_addrspace() won't work properly.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Diffstat (limited to 'drivers/ieee1394')
| -rw-r--r-- | drivers/ieee1394/highlevel.c | 4 | ||||
| -rw-r--r-- | drivers/ieee1394/hosts.h | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/ieee1394/highlevel.c b/drivers/ieee1394/highlevel.c index 491e6032bdec..29c5255b933c 100644 --- a/drivers/ieee1394/highlevel.c +++ b/drivers/ieee1394/highlevel.c @@ -312,8 +312,10 @@ u64 hpsb_allocate_and_register_addrspace(struct hpsb_highlevel *hl, return retval; } + /* default range, + * avoids controller's posted write area (see OHCI 1.1 clause 1.5) */ if (start == ~0ULL && end == ~0ULL) { - start = CSR1212_ALL_SPACE_BASE + 0xffff00000000ULL; /* ohci1394.c limit */ + start = host->middle_addr_space; end = CSR1212_ALL_SPACE_END; } diff --git a/drivers/ieee1394/hosts.h b/drivers/ieee1394/hosts.h index 9ddc6628e710..9ad4b2463077 100644 --- a/drivers/ieee1394/hosts.h +++ b/drivers/ieee1394/hosts.h @@ -73,6 +73,8 @@ struct hpsb_host { unsigned int config_roms; struct list_head addr_space; + u64 low_addr_space; /* upper bound of physical DMA area */ + u64 middle_addr_space; /* upper bound of posted write area */ }; |