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| author | Clemens Ladisch <clemens@ladisch.de> | 2010-06-10 08:35:06 +0200 |
|---|---|---|
| committer | Clemens Ladisch <clemens@ladisch.de> | 2010-06-10 08:35:06 +0200 |
| commit | a1a1132bd83d0aea51d4f19be4b4a58a064a0131 (patch) | |
| tree | 93352d6aa9fd8eaa0521fbeb65853cd9f485666e /drivers/firewire/core.h | |
| parent | 27a2329f8235d6ce637463f5d83e98d760ef006e (diff) | |
| download | linux-stable-a1a1132bd83d0aea51d4f19be4b4a58a064a0131.tar.gz linux-stable-a1a1132bd83d0aea51d4f19be4b4a58a064a0131.tar.bz2 linux-stable-a1a1132bd83d0aea51d4f19be4b4a58a064a0131.zip | |
firewire: add CSR PRIORITY_BUDGET support
If supported by the OHCI controller, implement the PRIORITY_BUDGET
register, which is required for nodes that can use asynchronous
priority arbitration.
To allow the core to determine what features the lowlevel device
supports, add a new card driver callback.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Diffstat (limited to 'drivers/firewire/core.h')
| -rw-r--r-- | drivers/firewire/core.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h index efcdeb2e31e6..3b8c0f042f49 100644 --- a/drivers/firewire/core.h +++ b/drivers/firewire/core.h @@ -38,6 +38,8 @@ struct fw_packet; #define BROADCAST_CHANNEL_INITIAL (1 << 31 | 31) #define BROADCAST_CHANNEL_VALID (1 << 30) +#define FEATURE_PRIORITY_BUDGET 0x01 + struct fw_card_driver { /* * Enable the given card with the given initial config rom. @@ -78,6 +80,8 @@ struct fw_card_driver { u32 (*read_csr_reg)(struct fw_card *card, int csr_offset); void (*write_csr_reg)(struct fw_card *card, int csr_offset, u32 value); + unsigned int (*get_features)(struct fw_card *card); + struct fw_iso_context * (*allocate_iso_context)(struct fw_card *card, int type, int channel, size_t header_size); |