diff options
Diffstat (limited to 'sound/firewire/amdtp-stream.h')
| -rw-r--r-- | sound/firewire/amdtp-stream.h | 44 |
1 files changed, 26 insertions, 18 deletions
diff --git a/sound/firewire/amdtp-stream.h b/sound/firewire/amdtp-stream.h index 7725d9793458..b362a6499265 100644 --- a/sound/firewire/amdtp-stream.h +++ b/sound/firewire/amdtp-stream.h @@ -167,9 +167,11 @@ struct amdtp_stream { snd_pcm_uframes_t pcm_buffer_pointer; unsigned int pcm_period_pointer; - /* To wait for first packet. */ - bool callbacked; - wait_queue_head_t callback_wait; + // To start processing content of packets at the same cycle in several contexts for + // each direction. + bool callbacked:1; + bool ready_processing:1; + wait_queue_head_t ready_wait; unsigned int next_cycle; /* For backends to process data blocks. */ @@ -259,21 +261,6 @@ static inline bool cip_sfc_is_base_44100(enum cip_sfc sfc) return sfc & 1; } -/** - * amdtp_stream_wait_callback - sleep till callbacked or timeout - * @s: the AMDTP stream - * @timeout: msec till timeout - * - * If this function return false, the AMDTP stream should be stopped. - */ -static inline bool amdtp_stream_wait_callback(struct amdtp_stream *s, - unsigned int timeout) -{ - return wait_event_timeout(s->callback_wait, - s->callbacked, - msecs_to_jiffies(timeout)) > 0; -} - struct seq_desc { unsigned int syt_offset; unsigned int data_blocks; @@ -327,4 +314,25 @@ unsigned long amdtp_domain_stream_pcm_pointer(struct amdtp_domain *d, struct amdtp_stream *s); int amdtp_domain_stream_pcm_ack(struct amdtp_domain *d, struct amdtp_stream *s); +/** + * amdtp_domain_wait_ready - sleep till being ready to process packets or timeout + * @d: the AMDTP domain + * @timeout_ms: msec till timeout + * + * If this function return false, the AMDTP domain should be stopped. + */ +static inline bool amdtp_domain_wait_ready(struct amdtp_domain *d, unsigned int timeout_ms) +{ + struct amdtp_stream *s; + + list_for_each_entry(s, &d->streams, list) { + unsigned int j = msecs_to_jiffies(timeout_ms); + + if (wait_event_interruptible_timeout(s->ready_wait, s->ready_processing, j) <= 0) + return false; + } + + return true; +} + #endif |