1b70485f13
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>
23 lines
592 B
C
23 lines
592 B
C
#ifndef SOUND_FIREWIRE_LIB_H_INCLUDED
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#define SOUND_FIREWIRE_LIB_H_INCLUDED
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#include <linux/firewire-constants.h>
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#include <linux/types.h>
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struct fw_unit;
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#define FW_GENERATION_MASK 0x00ff
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#define FW_FIXED_GENERATION 0x0100
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#define FW_QUIET 0x0200
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int snd_fw_transaction(struct fw_unit *unit, int tcode,
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u64 offset, void *buffer, size_t length,
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unsigned int flags);
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/* returns true if retrying the transaction would not make sense */
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static inline bool rcode_is_permanent_error(int rcode)
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{
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return rcode == RCODE_TYPE_ERROR || rcode == RCODE_ADDRESS_ERROR;
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}
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#endif
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