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| author | Clemens Ladisch <clemens@ladisch.de> | 2011-09-04 22:17:38 +0200 |
|---|---|---|
| committer | Clemens Ladisch <clemens@ladisch.de> | 2013-10-20 22:07:57 +0200 |
| commit | 1b70485f135a39d5f2d8c392a16817456fa3a5cd (patch) | |
| tree | cf1b9b833619374c3169c368890652d53594b43d /sound/firewire/lib.h | |
| parent | ALSA: dice: optimize reading of consecutive registers (diff) | |
| download | linux-1b70485f135a39d5f2d8c392a16817456fa3a5cd.tar.xz linux-1b70485f135a39d5f2d8c392a16817456fa3a5cd.zip | |
ALSA: firewire: extend snd_fw_transaction()
Add a flag to snd_fw_transaction() to allow it to abort when a bus reset
happens. This removes most of the duplicated error handling loops that
were required around calls to the low-level fw_run_transaction().
Also add a flag to suppress error messages; errors are expected when we
attempt to clean up after the device was unplugged.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Diffstat (limited to 'sound/firewire/lib.h')
| -rw-r--r-- | sound/firewire/lib.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sound/firewire/lib.h b/sound/firewire/lib.h index aef301476ea9..02cfabc9c3c4 100644 --- a/sound/firewire/lib.h +++ b/sound/firewire/lib.h @@ -6,8 +6,13 @@ struct fw_unit; +#define FW_GENERATION_MASK 0x00ff +#define FW_FIXED_GENERATION 0x0100 +#define FW_QUIET 0x0200 + int snd_fw_transaction(struct fw_unit *unit, int tcode, - u64 offset, void *buffer, size_t length); + u64 offset, void *buffer, size_t length, + unsigned int flags); /* returns true if retrying the transaction would not make sense */ static inline bool rcode_is_permanent_error(int rcode) |