mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-18 09:44:18 +08:00
31ef9134eb
Add a driver for two playback-only FireWire devices based on the OXFW970
chip.
v2: better AMDTP API abstraction; fix fw_unit leak; small fixes
v3: cache the iPCR value
v4: FireWave constraints; fix fw_device reference counting;
fix PCR caching; small changes and fixes
v5: volume/mute support; fix crashing due to pcm stop races
v6: fix build; one-channel volume for LaCie
v7: use signed values to make volume (range checks) work; fix function
block IDs for volume/mute; always use channel 0 for LaCie volume
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Tested-by: Jay Fenlason <fenlason@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
20 lines
514 B
C
20 lines
514 B
C
#ifndef SOUND_FIREWIRE_LIB_H_INCLUDED
|
|
#define SOUND_FIREWIRE_LIB_H_INCLUDED
|
|
|
|
#include <linux/firewire-constants.h>
|
|
#include <linux/types.h>
|
|
|
|
struct fw_unit;
|
|
|
|
int snd_fw_transaction(struct fw_unit *unit, int tcode,
|
|
u64 offset, void *buffer, size_t length);
|
|
const char *rcode_string(unsigned int rcode);
|
|
|
|
/* returns true if retrying the transaction would not make sense */
|
|
static inline bool rcode_is_permanent_error(int rcode)
|
|
{
|
|
return rcode == RCODE_TYPE_ERROR || rcode == RCODE_ADDRESS_ERROR;
|
|
}
|
|
|
|
#endif
|