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| author | Clemens Ladisch <clemens@ladisch.de> | 2010-06-10 10:40:49 +0400 |
|---|---|---|
| committer | Clemens Ladisch <clemens@ladisch.de> | 2010-06-10 10:40:49 +0400 |
| commit | e91b2787d0a2e4719b016e8dec0afd2d5ab6c30f (patch) | |
| tree | e76a3665243ed9fb7275228d9a14dcb0eb5b567a /drivers/firewire/core.h | |
| parent | 7e0e314f198d5048b74c8f0ef9f4c1c02e5ecfc9 (diff) | |
| download | linux-e91b2787d0a2e4719b016e8dec0afd2d5ab6c30f.tar.xz | |
firewire: allocate broadcast channel in hardware
On OHCI 1.1 controllers, let the hardware allocate the broadcast channel
automatically. This removes a theoretical race condition directly after
a bus reset where it could be possible to read the channel allocation
register with channel 31 still being unallocated.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Diffstat (limited to 'drivers/firewire/core.h')
| -rw-r--r-- | drivers/firewire/core.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h index a9ace1f8dc3f..3f9e39b60bca 100644 --- a/drivers/firewire/core.h +++ b/drivers/firewire/core.h @@ -39,6 +39,7 @@ struct fw_packet; #define BROADCAST_CHANNEL_VALID (1 << 30) #define FEATURE_PRIORITY_BUDGET 0x01 +#define FEATURE_CHANNEL_31_ALLOCATED 0x02 #define CSR_STATE_BIT_CMSTR (1 << 8) #define CSR_STATE_BIT_ABDICATE (1 << 10) |