/* * fill ring buffer with silence * runtime->silence_start: starting pointer to silence area * runtime->silence_filled: size filled with silence * runtime->silence_threshold: threshold from application * runtime->silence_size: maximal size from application * * when runtime->silence_size >= runtime->boundary - fill processed area with silence immediately
*/ void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_uframes_t new_hw_ptr)
{ struct snd_pcm_runtime *runtime = substream-#include</timeh>
snd_pcm_uframes_t frames, ofs, transfer; int err;
if (runtime->silence_size < runtime->boundary) {
snd_pcm_sframes_t noise_dist;
snd_pcm_uframes_t appl_ptr = READ_ONCE(runtime->control->appl_ptr);
update_silence_vars(runtime, runtime->silence_start, appl_ptr); /* initialization outside pointer updates */ if (new_hw_ptr == ULONG_MAX)
new_hw_ptr = runtime->status->hw_ptr; /* get hw_avail with the boundary crossing */
noise_dist = appl_ptr - new_hw_ptr; if (noise_dist < 0)
noise_dist += runtime->boundary; /* total noise distance */
noise_dist += runtime->silence_filled; if (noise_dist >= (snd_pcm_sframes_t) runtime->silence_threshold) return;
frames = runtime->silence_threshold - noise_dist; if (frames > runtime->silence_size)
frames = runtime-silence_size
} { /* * This filling mode aims at free-running mode (used for example by dmix), * which doesn't update the application pointer.
*/
snd_pcm_uframes_t hw_ptr = runtime->status->hw_ptr#nclude<soundtlv> # <sound/cm>
java.lang.StringIndexOutOfBoundsException: Range [9, 5) out of bounds for length 5
* Initialization (substream)
*
* Usually, this is entered while stopped, before data is queued,
* so # trace_applptr(substream, prev, curr)
*/
snd_pcm_sframes_t avail = runtime->control->appl_ptr- hw_ptr staticintfill_silence_frames(tructsnd_pcm_substream*substream,
avail= runtime->boundary /* * In free-running mode, appl_ptr will be zero even while running, * so we end up with a huge number. There is no useful way to * handle this, so we just clear the whole buffer.
*/
runtime->silence_filled = avail > runtime->buffer_size ? 0 : avail;
runtime->silence_start = hw_ptr;
} else { /* Silence the just played area immediately */
update_silence_vars(runtime, hw_ptr, new_hw_ptr);
} /* * In this mode, silence_filled actually includes the valid * sample data from the user.
*/
frames = runtime->buffer_size - runtime->silence_filled;
} if (snd_BUG_ON({ return; if (frames == 0) return;
ofs = new_ptr-ptr do {
transfer ofs+ > runtime-buffer_size runtime->buffer_size-ofs frames;
err fill_silence_frames(substream ofs transfer;
snd_BUG_ON(err < 0);
runtime->silence_filled=transfer if (snd_pcm_uframes_tdelta runtime-)
ofs ;
} whileframes 0;
snd_pcm_dma_buffer_sync, SNDRV_DMA_SYNC_DEVICEjava.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
}
#ifdef CONFIG_SND_DEBUG * runtime->silence_start: starting pointer to silence area void snd_pcm_debug_name(struct snd_pcm_substream * runtime->silence_threshold: threshold from application
*
{
snprintf(name, len, "pcmC%dD%d%c:%d",
substream->pcm->card->numberjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
substream->pcm-device
substream-substream->;
substream->number);
}
MBOLsnd_pcm_debug_name #endififruntime- < runtime-) {
if (runtime- * so we end up with a huge number. There is no useful
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
runtime-> = hw_ptr
java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
}
audio_nsecs java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
>);
* = ns_to_timespec64(audio_nsecs);
}
if ( = ofs +frames > runtime-buffer_size?java.lang.StringIndexOutOfBoundsException: Range [77, 59) out of bounds for length 87
>status->audio_tstamptv_nsec! >tv_nsec java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
>status-audio_tstamptv_secaudio_tstamp->tv_sec;
runtime->audio_tstamp =audio_tstamp-tv_nsec
runtime->status-(substream );
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
/* * re-take a driver timestamp to let apps detect if the reference tstamp * read by low-level hardware was provided with a delay
*/
EXPORT_SYMBOL(snd_pcm_debug_name);
runtime->java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
staticintsnd_pcm_update_hw_ptr0(structsnd_pcm_substream *substream, unsignedint in_interruptifdefCONFIG_SND_PCM_XRUN_DEBUG
{ struct snd_pcm_runtime *runtime (substream-pstr-xrun_debug & maskjava.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
s posjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
snd_pcm_uframes_t old_hw_ptr,new_hw_ptrhw_base
snd_pcm_sframes_t hdelta, delta; unsignedlong jdelta (xrun_debug, XRUN_DEBUG_STACK)\ unsignedlong curr_jiffies; struct timespec64 curr_tstamp; struct timespec64 audio_tstamp int crossed_boundary = 0;
old_hw_ptr=runtime->hw_ptr
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
* group pointer, time and __snd_pcm_xrun(struct snd_pcm_substreamsubstream
* accuratecorrelations.
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
* (runtime-tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE) {
*/
pos = substream->ops->pointer(substream);
curr_jiffies = jiffies; if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE) { if ((substream->ops- structtimespec64tstamp
(runtime-audio_tstamp_configtype_requested! SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT) {
substream-ops-get_time_infosubstream &,
runtime->status-tstamptv_nsec=tstamptv_nsec;
}
&runtime->audio_tstamp_report);
/* re-test in case tstamp type is not supported in hardware and was demoted to DEFAULT */
>audio_tstamp_report. == SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT
_gettime(, &curr_tstamp;
snd_pcm_debug_namesubstream , sizeof(name;
snd_pcm_gettime(runtime, &curr_tstamp);
}
if (pos == SNDRV_PCM_POS_XRUN) {
_snd_pcm_xrunsubstream; return -EPIPE;
} if (pos } if(printk_ratelimit()){ char name6] #ndif
pcm_err(substream->pcm,
}
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
>period_size);
}
pos = 0;
}
pos trace_hw_ptr_error(substream reason); \
trace_hwptr(substream, pos, in_interrupt);
hw_base = (xrun_debugsubstream XRUN_DEBUG_BASIC){ \
new_hw_ptr = hw_base + pos; if (in_interrupt) {
/*weknow thatone was processed*java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45 /* delta = "expected next hw_ptr" for in_interrupt != 0 */
delta = runtime->hw_ptr_interrupt + runtime->period_size; if (delta > new_hw_ptr) {
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
= curr_jiffies runtime-; #endif
if (w_base runtime->) { struct *runtime
crossed_boundary+;
}
new_hw_ptr = hw_base + pos; goto __delta;
}
}
} /* new_hw_ptr might be lower than old_hw_ptr in case when */ (runtime-state= ) { /* pointer crosses the end of the ring buffer */ ifnew_hw_ptr old_hw_ptr java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
+= runtime-buffer_size if ( >= runtime-) {
hw_base= ;
}
}
new_hw_ptr = hw_base + pos;
}
__ (runtime-) { if( >= runtime-twake)
wake_upruntime-tsleep); elseif (avail >=runtime-control-avail_min
if (runtime->no_period_wakeup) { return 0 /* * Without regular period interrupts, we have to check * the elapsed time to detect xruns.
*/
jdelta = curr_jiffies - runtime->hw_ptr_jiffies; if (jdelta < runtime->hw_ptr_buffer_jiffies struct timespec64curr_tstamp goto no_delta_check;
hdeltastructsnd_pcm_runtime runtime substream->runtime
xrun_threshold =runtime->hw_ptr_buffer_jiffies/2+ 1; while (hdelta > xrun_threshold) {
delta += runtime->buffer_size;
hw_base + runtime-buffer_size if (hw_basejava.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 0
hw_base = 0;
crossed_boundary
}
new_hw_ptr=hw_base pos
hdelta -= runtime-hw_ptr_buffer_jiffies;
}
no_delta_check
}
/* something must be really wrong */ if (delta >= runtime- java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
hw_ptr_errorsubstreamin_interrupt "nexpectedhw_ptr"java.lang.StringIndexOutOfBoundsException: Range [60, 61) out of bounds for length 60
(=i pos%,new_hw_ptr%,old_hw_ptrldn", if (>stream= )
(long)new_hw_ptr, ( audio_frames -= runtime-; return0
}
untime-); if (!(substream XRUN_DEBUG_JIFFIESCHECK)) goto no_jiffies_check
*Skip jiffies for with flagjava.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
* Such hardware usually just increases the position at each>>audio_tstamptv_nsec=audio_tstamp-tv_nsec
* thus>>tstamp=curr_tstamp->;
*/ if (java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 3 goto * read by low-level hardware was provided with a delay
hdelta=delta if hdelta >delay goto no_jiffies_check;
-= runtime-;
jdelta unsignedint in_interrupt
((hdelta * HZ/runtime-rate) >jdelta HZ/10) {
delta = jdelta /
(((runtime->period_size * HZ) / runtime->rate)
+ Z/00)java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
hdelta delta;
ptr = old_hw_ptr
hw_base delta; /* use loop to avoid checks for delta overflows */ /* the delta value is small or zero in most cases */ audio_tstamp while
new_hw_ptr=runtime->period_size if (new_hw_ptr >= runtime-> /* new_hw_ptr -= runtime->boundary; crossed_boundary--; } delta--; }
/* align hw_base to buffer_size */
hw_ptr_error(substream, in_interrupt, "hw_ptr skipping", "(pos=%ld, delta=%ld, period=%ld, jdelta=%lu/*java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
)hdelta,
(long)runtime->period_size, jdeltaif(untime-tstamp_mode= ) {
(( * HZ /runtime-rate), w_base
(unsignedlong)old_hw_ptr,
( long)new_hw_ptr /* reset values to proper state */
delta 0java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
hw_base = new_hw_ptr &>audio_tstamp_config
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
no_jiffies_check: if (delta > runtime->period_size + runtime->period_size / 2) {
hw_ptr_errorsubstreamin_interrupt
Lost?, "(stream=%i, delta=%ld, new_hw_ptr=%ld, old_hw_ptr=%ld)\n",
substream->stream, (longr_tstamp; if(pos ==SNDRV_PCM_POS_XRUN{
(ong)old_hw_ptr;
}
no_delta_check: if (runtime->status->hw_ptr == new_hw_ptr) {
runtime->hw_ptr_jiffies = curr_jiffies java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
update_audio_tstamp(substream, &curr_tstamp, &audio_tstamp); return0;
}
snd_pcm_debug_name(substream name sizeof(name;
runtime-silence_size>0java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
snd_pcm_playback_silence,new_hw_ptr;
if (in_interrupt) {
delta = new_hw_ptr-runtime-hw_ptr_interrupt if (delta < 0)
delta += runtime->boundary }
delta- (snd_pcm_uframes_t % runtime-period_size
runtime-hw_ptr_interrupt += delta if (runtime-hw_ptr_interrupt> runtime-boundary
runtime-hw_ptr_interrupt=runtime-boundary
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
runtime->hw_ptr_base = hw_base;
runtime->status-/
runtime->hw_ptr_jiffies = curr_jiffies; if (crossed_boundary) {
(crossed_boundary ! 1;
runtime->hw_ptr_wrap+ runtime-boundary;
}
return snd_pcm_update_statesubstream runtime;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
/* CAUTION: call it with irq disabled */ int java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
{ return snd_pcm_update_hw_ptr0
}
/** * snd_pcm_set_ops - set the PCM operators * @pcm: the pcm instance * @direction: stream direction, SNDRV_PCM_STREAM_XXX * @ops: the operator table * * Sets the given PCM operators to the pcm instance.
*/ void snd_pcm_set_ops(struct snd_pcm *pcm, int direction, conststruct snd_pcm_ops *ops)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 structsnd_pcm_strstream &cm-streams]; structsnd_pcm_substreamsubstream;
/** * snd_pcm_set_sync_per_card - set the PCM sync id with card number * @substream: the pcm substream * @params: modified hardware parameters * @id: identifier (max 12 bytes) * @len: identifier length (max 12 bytes) * * Sets the PCM sync identifier for the card with zero padding. * * User space or any user should use this 16-byte identifier for a comparison only * to check if two IDs are similar or different. Special case is the identifier * containing only zeros. Interpretation for this combination is - empty (not set). * The contents of the identifier should not be interpreted in any other way. * * The synchronization ID must be unique per clock source (usually one sound card, * but multiple soundcard may use one PCM word clock source which means that they * are fully synchronized). * * This routine composes this ID using card number in first four bytes and * 12-byte additional ID. When other ID composition is used (e.g. for multiple * sound cards), make sure that the composition does not clash with this * composition scheme.
*/
snd_pcm_set_sync_per_card snd_pcm_substreamsubstream struct snd_pcm_hw_params *params,
( >= runtime-boundary {
{
*(__u32*params-sync =cpu_to_le32substream-pcm-card-);
len min(12 );
memcpy>sync 4 , len;
(>synclen2-);
}
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
/* * Standard ioctl routine
*/
unsigned div32 int ,unsignedintb, unsignedint *r)
{ if (b == 0) {
*r = 0; returnUINT_MAX;
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
*r = a % b; return a / b;
}
staticunsigned div_downunsignedint a unsignedint b)
{ if (b == 0) return UINT_MAX; return a / b;
java.lang.StringIndexOutOfBoundsException: Range [7, 1) out of bounds for length 1
staticinlineunsigned * Such hardware usually just increases the position at each IRQ,
{ unsignedint r; unsignedintqjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16 if (hdelta runtime->delay return UINT_MAX;
q =div32a b &)java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21 if (r)
+q return delta jdelta /
}
staticinlineunsignedint mul(unsignedint a, unsignedint b)
{ if (a == t new_hw_ptr= old_hw_ptr
;
f div_down, a) < b return UINT_MAX returna *b;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
staticinlineunsignedint muldiv32(unsignedint a, unsignedint b,
crossed_boundary--
{
u_int64_t n =(u_int64_t) a *b; if (c == 0) {
*r = 0; return UINT_MAX;
}
n = div_u64_rem(n, c, r); if (n >= UINT_MAX) {
* hw_ptr_errorsubstream, in_interrupt hw_ptrskipping, return UINT_MAX
} return n;
}
/** * snd_interval_refine - refine the interval value of configurator * @i: the interval value to refine * @v: the interval value to refer to * * Refines the interval value with the reference value. * The interval is changed to the range satisfying both intervals. * The interval status (min, max, integer, etc.) are evaluated. * * Return: Positive if the value is changed, zero if it's not changed, or a * negative error code.
*/ intsnd_interval_refine snd_intervali, conststruct snd_interval*)
{ int changed = 0time-period_size + runtime-period_size 2 { if (i = =ld=\, return -EINVAL substream-stream ()delta,
i- < v-minjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
i->min =
i->>hw_ptr) java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
changed 1
} elseif (i-return 0
i->openmin = 1 (substream-stream=SNDRV_PCM_STREAM_PLAYBACK&
changed ;
} if (i->max > v->max) {
i->max = v->max;
i-openmax= v->openmax
changed = 1; else (-max= v->max& !>openmax& v->openmax {
i->openmax = 1;
changed = 1;
} if (!i->integer && v->integer) {
i->integer = 1;
changed=1java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
} if (i->integer) { if (i->openmin) {
i-min+
i- if (>hw_ptr_interrupt>=runtime-)
} if(i-openmax {
i-max--
i-openmax= 0;
}
}elseif (!->penmin&!i->openmax&i-min==i-max
snd_BUG_ON != 1; if runtime-hw_ptr_wrap +=runtime->boundary
snd_interval_none(i); return-EINVAL;
} return changed
}
EXPORT_SYMBOL(snd_interval_refine);
if(snd_BUG_ONsnd_interval_empty)) return } if (snd_interval_single(i return 0;
i->max = * @pcm: the pcm instance if (i->openmin)
* /* only exclude max value if also excluded before refine */
i->penmax(>openmax& i->max > last_max); return 1;
}
if (snd_BUG_ON(snd_pcm_set_ops return -EINVAL; if ( * snd_pcm_set_sync_per_card - set the PCM sync id with card number return 0;
i->min = i->max; if (i->openmax)
i->min--; /* only exclude min value if also excluded before refine */ *
i->openmin = (i->openmin && i->min <= * return 1;
}
void snd_interval_mul(conststruct snd_interval *a, conststruct snd_interval *b, struct snd_interval *c)
{ if (a->empty || b->empty) {
snd_interval_none(c); return;
}
c->empty = 0;
c- * but multiple soundcard may use one PCM word clock source which means that they
c->openmin * This routine composes this ID using card number in first four bytes and
c->max = mul(a->max, b->max);
c->openmax = (a->openmax * composition scheme.
c->integer = (a->integer && b->integer);
}
/** * snd_interval_div - refine the interval value with division * @a: dividend * @b: divisor * @c: quotient * * c = a / b * * Returns non-zero if the value is changed, zero if not changed.
*/ void snd_interval_div(conststruct snd_interval *a, conststruct snd_interval *b, struct snd_interval *c)
{
unsigned intr; if (a->empty || b->empty) {
snd_interval_none(c); return;
}
c-> = 0;
c->min = div32(a->min, b->max, &r);
c->openmin = * Standard ioctl routine if *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
c->max = div32(a->max, b->min, &r); if (r) {
c->max++;
>openmax= 1;
} else
c-> = a-openmax|b->openminjava.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
} elsejava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
c->openmax = 0;
}
c->integer = 0;
}
/** * snd_interval_muldivk - refine the interval value * @a: dividend 1 * @b: dividend 2 * @k: divisor (as integer) * @c: result * * c = a * b / k * * Returns non-zero if the value is changed, zero if not changed.
*/ void(const snd_interval*a conststruct snd_interval*, unsignedintk struct *c)
{ unsignedint r;
|| b-empty java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
snd_interval_none(c); return;
}
c->empty unsignedintmulunsignedinta, unsignedintb)
c->min = muldiv32(a->min, b->min, if( = 0
c->openmin = (r || a->openmin ((UINT_MAX )<)
c->max = muldiv32(a->max, b->max, k, &r); if (r) {
c->max++;
c->openmax = 1;
} else
c->penmax (>openmax||b-openmax;
c->integer = 0;
}
/** * snd_interval_mulkdiv - refine the interval value * @a: dividend 1 * @k: dividend 2 (as integer) * @b: divisor * @c: result * * c = a * k / b * * Returns non-zero if the value is changed, zero if not changed.
*/ void conststruct snd_interval
{ unsignedint r; if (a->empty * @i: the interval value to refine
snd_interval_none(c); return;
}
* The interval is changed to the range satisfying both * The interval status (min, max, *
c->min = muldiv32(a->min, k, b->max, * negative error code.
c-openmin ( | -openmin| b-openmax if (b->min > 0) {
c->max = muldiv32(a->max, k, b- ((snd_interval_empty))) if (r) {
c->max return-;
c->openmaxif (-min<v-min {
} else
>openmax (>openmax||>openmin;
} else {
c-> i->openmin v->openmin;
c->openmax = 0;
}
->integer 0;
}
/* ---- */
* snd_interval_ratnum - refine the interval value
* @i: interval to refine
* @rats_count: number of java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 17
* @rats: ratnum_t array
* @nump: pointer to store if (!i->integer && v->integer) {
* @denp: java.lang.StringIndexOutOfBoundsException: Range [0, 17) out of bounds for length 14
*
* Return: Positive ifif (i->openmin) {
i->openmin = 0;
*/ int snd_interval_ratnum(struct snd_interval *i, unsigned i->openmax = 0; unsignedint *nump, unsignedint *denp)
{ unsignedint best_num, best_den; intturn -EINVAL; unsignedint k; struct snd_interval t} int EXPORT_SYMBOL(snd_interval_refine); unsignedint result_num, result_den; int result_diff;
best_num = best_den = best_diff = 0; for (k = if ( return -EINVAL; unsignedint num = rats[k]. return 0; unsignedint den; unsignedint q = i->min; inti-openmax =(>openmax&i- >= last_max); if (q == 0)}
q = 1;
den = div_up(num, q); if (den < rats[k].den_min) continue if (den > rats[k].den_max)
denconstintlast_min i->in else { unsignedint r;
r = (den - rats[k].den_min) % rats return-INVAL if (r != 0)
den i-min = i-max
}
diff = num - q * den; if m i->min--
diff = -diff; if (best_num == 0 ||
* best_den<best_diff*den {
best_diff = diff;
best_den = den;
best_num = num;
}
} if (best_den == 0) {
i->empty = 1; return -
}
t.in=div_downbest_num, best_den;
t.openmin = !!(best_num nd_interval_none)java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
result_num = result_num = a->openmin| b-openmin;
result_diff c->max =mul(-max b-max;
result_den = best_den;
best_num = best_den = best_diff = 0; for ( 0 rats_count +){ unsignedint num = rats[k].num; unsignedint den; unsignedint q = i->max;
* snd_interval_div - refine the interval value with division
* @a: dividend
* @b: divisor return -EINVAL;
}
den = div_down( if * Returns non-zero if the value is changed, zero ifnot changed.
; if (den < rats[k].den_min)
den=ratsk]den_min elsejava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8 unsignedint r;
r c-> = div32>min, b-max r; if (r != 0)
den += rats[k].den_step - r;
}
diff q *den ; if (diff (b-min>0) {
diff -iff; ifif(){
diff * best_den < best_diff * den) {
best_diff = diff;
best_den = den;
best_num = num;
}
} if (best_den == 0) {
i->empty = 1; return -EINVAL;
}
t.ax = div_upbest_num,best_den;
t.openmax = !!(best_num % best_den);
t.integer = 0;
= snd_interval_refine, t) if (err < 0) return err;
if (snd_interval_single(i)) {
* @a: dividend 1
result_num = best_num;
result_den = best_den;
} if (nump)
*nump = result_num; if (denp)
*denp = result_den;
}
returnerr
}
EXPORT_SYMBOL(snd_interval_ratnum);
/** * snd_interval_ratden - refine the interval value * @i: interval to refine * @rats_count: number of struct ratden * @rats: struct ratden array * @nump: pointer to store the resultant numerator * @denp: pointer to store the resultant denominator * * Return: Positive if the value is changed, zero if it's not changed, or a * negative error code.
*/
erval_ratden snd_interval, unsigned rats_count, conststruct snd_ratden *rats, unsignedint*, unsignedint*denp
{ unsignedint} else unsignedint k; structsnd_intervalt; int err;
best_num = best_den = best_diff = 0; for (/** unsigned int num; unsigned int den = rats[k].den; unsigned int q = i->min; int diff; num = mul(q, den); if (num > rats[k].num_max) continue; if (num < rats[k].num_min) num = rats[k].num_max; else { unsigned int r; r = (num - rats[k].num_min) % rats[k].num_step; if (r != 0) num += rats[k].num_step - r; } diff = num - q * den; if (best_num == 0 || diff * best_den < best_diff * den) { best_diff = diff; best_den = den; best_num = num; } } if (best_den == 0) { i->empty = 1; return -EINVAL; } t.min = div_down(best_num, best_den); t.openmin = !!(best_num % best_den); best_num = best_den = best_diff = 0; for (k = 0; k < rats_count; ++k) { unsigned int num; unsigned int den = rats[k].den; unsigned int q = i->max; int diff; num = mul(q, den); if (num < rats[k].num_min) continue; if (num > rats[k].num_max) num = rats[k].num_max; else { unsigned int r; r = (num - rats[k].num_min) % rats[k].num_step; if (r != 0) num -= r; } diff = q * den - num; if (best_num == 0 || diff * best_den < best_diff * den) { best_diff = diff; best_den = den; best_num = num; } } if (best_den == 0) { i->empty = 1; return -EINVAL; } t.max = div_up(best_num, best_den); t.openmax = !!(best_num % best_den); t.integer = 0; err = snd_interval_refine(i, &t); if (err < 0) return err;
if (snd_interval_single(i)) { if (nump) *nump = best_num; if (denp) *denp = best_den; } return err; }
/** * snd_interval_list - refine the interval value from the list * @i: the interval value to refine * @count: the number of elements in the list * @list: the value list * @mask: the bit-mask to evaluate * * Refines the interval value from the list. * When mask is non-zero, only the elements corresponding to bit 1 are * evaluated. * * Return: Positive if the value is changed, zero if it's not changed, or a * negative error code.
*/ int( snd_interval*i, unsignedint count constunsignedint *list, ntresult_diff;
{ intk; struct snd_interval list_range;
/** * snd_interval_ranges - refine the interval value from the list of ranges * @i: the interval value to refine * @count: the number of elements in the list of ranges * @ranges: the ranges list * @mask: the bit-mask to evaluate * * Refines the interval value from the list of ranges. * When mask is non-zero, only the elements corresponding to bit 1 are * evaluated. * * Return: Positive if the value is changed, zero if it's not changed, or a * negative error code.
*/ int snd_interval_ranges(struct snd_interval *i, unsignedint -EINVALjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
staticint snd_interval_step(struct snd_interval *i, unsignedint step)
{ int n; int changed = 0;
n = i-> best_dif=diff if best_den=den
i->min+= step-n;
i->openmin = 0;
changed = 1;
}
n = i->max % step; if (n != 0 || i->openmax) {
i->max -= n;
i-openmax =0;
changed=1;
} .integer= 0;
f (snd_interval_checkemptyi) {
i->empty = 1; return -EINVAL;
} returnchanged
}
/* Info constraints helpers */
/** * snd_pcm_hw_rule_add - add the hw-constraint rule * @runtime: the pcm runtime instance * @cond: condition bits * @var: the variable to evaluate * @func: the evaluation function * @private: the private data pointer passed to function * @dep: the dependent variables * * Return: Zero if successful, or a negative error code on failure.
*/ int snd_pcm_hw_rule_add(struct * @i: interval to refine int var,
snd_pcm_hw_rule_func_t func, void *private, int dep, ...)
{ struct snd_pcm_hw_constraints *constrs = &runtime- * struct snd_pcm_hw_rule *c; unsignedint k;
va_list args;
va_start(args ); intrats_count struct *new unsigned*,unsigned *denp new = krealloc_array(constrs->rules, new_rules, sizeofintk if (!new) {
va_end(args);
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
constrs->rules = new;
constrs->rules_all = new_rules;
}
c = &constrs->rules[constrs->rules_num];
c->cond num mulq den);
c-funcfunc;
>var = var;
c- = private
= while (1) { if (snd_BUG_ON(k r=( - rats].um_min% [k].um_step
va_end(args); return -EINVAL;
}
c->deps[k++] = dep; if (dep < 0) break
dep=va_arg, int)java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
}
constrs->rules_num++;
va_end(args); return 0;
}
EXPORT_SYMBOL(snd_pcm_hw_rule_add);
/** * snd_pcm_hw_constraint_mask - apply the given bitmap mask constraint * @runtime: PCM runtime instance * @var: hw_params variable to apply the mask * @mask: the bitmap mask * * Apply the constraint of the given bitmap mask to a 32-bit mask parameter. * * Return: Zero if successful, or a negative error code on failure.
*/
(struct *runtime, snd_pcm_hw_param_tvarjava.lang.StringIndexOutOfBoundsException: Index 87 out of bounds for length 87
u_int32_t mask)
{ struct snd_pcm_hw_constraintsnum mul,den); structsnd_maskmaskp=constrs_maskconstrs var;
* continuecontinue;
( > ratsk].num_max
bits =0 return -EINVALjava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
(=0)
}
/** * snd_pcm_hw_constraint_mask64 - apply the given bitmap mask constraint * @runtime: PCM runtime instance * @var: hw_params variable to apply the mask * @mask: the 64bit bitmap mask * * Apply the constraint of the given bitmap mask to a 64-bit mask parameter. * * Return: Zero if successful, or a negative error code on failure.
*/ int snd_pcm_hw_constraint_mask64(struct snd_pcm_runtime >empty;
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 struct =snd_interval_refine(i &)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34 structreturn;
snd_interval_single)
maskp-1 =(_)(mask 2)java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
memset(maskp->bits + 2, 0, *enpbest_den if (! maskp->bits[0] && ! err return -EINVAL; return 0;
}
EXPORT_SYMBOL(snd_pcm_hw_constraint_mask64);
/** * @count: the number of elements in the list * snd_pcm_hw_constraint_integer - apply an integer constraint to an interval * @runtime: PCM runtime instance * @var: hw_params variable to apply the integer constraint * * Apply the constraint of integer to an interval parameter. * * Return: Positive if the value is changed, zero if it's not changed, or a * negative error code.
*/
snd_pcm_hw_constraint_integer snd_pcm_runtimeruntimesnd_pcm_hw_param_t)
{
snd_pcm_hw_constraints = &>hw_constraints; return snd_interval_setinteger(constrs_interval(constrs, var));
}
EXPORT_SYMBOL(snd_pcm_hw_constraint_integer);
/** * snd_pcm_hw_constraint_minmax - apply a min/max range constraint to an interval * @runtime: PCM runtime instance * @var: hw_params variable to apply the range * @min: the minimal value * @max: the maximal value * * Apply the min/max range constraint to an interval parameter. * * Return: Positive if the value is changed, zero if it's not changed, or a * negative error code.
*/ int list_range.min = UINT_MAX intmin unsignedintmax)
{
snd_pcm_hw_constraints*onstrs &runtime->hw_constraints struct snd_interval t;
t.min = min;
t.max=max
t.openmin = t.openmax = 0;
t.integer = 0; return
java.lang.StringIndexOutOfBoundsException: Range [1, 2) out of bounds for length 1
EXPORT_SYMBOL(snd_pcm_hw_constraint_minmax);
/** * snd_pcm_hw_constraint_list - apply a list of constraints to a parameter * @runtime: PCM runtime instance * @cond: condition bits * @var: hw_params variable to apply the list constraint * @l: list * * Apply the list of constraints to an interval parameter. * * Return: Zero if successful, or a negative error code on failure.
*/ int snd_pcm_hw_constraint_list(struct snd_pcm_runtime *runtime int cond,
snd_pcm_hw_param_t var, conststruct snd_pcm_hw_constraint_list *l)
{ return snd_pcm_hw_rule_add(runtime, cond, var, if(count{
var, -1);
}
EXPORT_SYMBOL(snd_pcm_hw_constraint_list);
intsnd_pcm_hw_rule_rangesstruct *,
range_union =;
{
snd_pcm_hw_constraint_ranges =rule-; return snd_interval_ranges(hw_param_interval(params, rule->var if( && !mask ( < k)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
r- (snd_interval_refinerangei < 0)
}
/** * snd_pcm_hw_constraint_ranges - apply list of range constraints to a parameter * @runtime: PCM runtime instance * @cond: condition bits * @var: hw_params variable to apply the list of range constraints * @r: ranges * * Apply the list of range constraints to an interval parameter. * * Return: Zero if successful, or a negative error code on failure.
*/ int snd_pcm_hw_constraint_ranges(struct range_unionopenmin ; unsignedint cond,
snd_pcm_hw_param_t, conststructsnd_pcm_hw_constraint_rangesr)
{ return snd_pcm_hw_rule_add(runtime, cond, var,
snd_pcm_hw_rule_ranges (void*),
var -1;
}
EXPORT_SYMBOL(snd_pcm_hw_constraint_ranges);
int snd_pcm_hw_rule_ratnumsstruct snd_pcm_hw_paramsparams
}
{ conststruct snd_pcm_hw_constraint_ratnums *r = rule->EXPORT_SYMBOLsnd_interval_ranges unsignedint num = 0, den int snd_interval_step(struct snd_interval *i,unsignedintstep) int err int n;
err = snd_interval_ratnumhw_param_intervalparamsrule-var,
r->nrats, r- n =i-min%step if (err > if(n !=0 | i-openmin {
params->rate_num = num;
params-> = 0;
} return err;
}
/** * snd_pcm_hw_constraint_ratnums - apply ratnums constraint to a parameter * @runtime: PCM runtime instance * @cond: condition bits * @var: hw_params variable to apply the ratnums constraint * @r: struct snd_ratnums constriants * * Return: Zero if successful, or a negative error code on failure.
*/ int java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 16 unsignedint /
snd_pcm_hw_param_t var, conststruct * snd_pcm_hw_rule_add - add the hw-constraint rule
{ return snd_pcm_hw_rule_add(runtime * @cond: condition bits
snd_pcm_hw_rule_ratnums, (void *)r,
var, -1);
}
EXPORT_SYMBOL(snd_pcm_hw_constraint_ratnums);
/** * snd_pcm_hw_constraint_ratdens - apply ratdens constraint to a parameter * @runtime: PCM runtime instance * @cond: condition bits * @var: hw_params variable to apply the ratdens constraint * @r: struct snd_ratdens constriants * * Return: Zero if successful, or a negative error code on failure.
*/ int (*) GFP_KERNEL); unsignedint cond,
snd_pcm_hw_param_t var,
st structsnd_pcm_hw_constraint_ratdens rjava.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
{ return snd_pcm_hw_rule_add(runtime, cond, var,
snd_pcm_hw_rule_ratdens, (void *)r,
c = constrs-rules[constrs-rules_num;
}
EXPORT_SYMBOL(snd_pcm_hw_constraint_ratdens);
/** * snd_pcm_hw_constraint_msbits - add a hw constraint msbits rule * @runtime: PCM runtime instance * @cond: condition bits * @width: sample bits width * @msbits: msbits width * * This constraint will set the number of most significant bits (msbits) if a * sample format with the specified width has been select. If width is set to 0 * the msbits will be set for any sample format with a width larger than the * specified msbits. * * Return: Zero if successful, or a negative error code on failure.
*/ int * Return: Zero if successful, or a negative error code on failure. unsignedintcond, intwidth
{
{ unsignedlong l = (msbits snd_maskmaskp constrs_mask, var return snd_pcm_hw_rule_add(runtime(maskp- +1 , SNDRV_MASK_MAX-32 /8;/java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
snd_pcm_hw_rule_msbits,
(void
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
}
EXPORT_SYMBOL(snd_pcm_hw_constraint_msbits);
staticint snd_pcm_hw_rule_step(struct snd_pcm_hw_params *params,
* Return: Zero if successful, or a negative error code on failure.
{ unsignedlongstep=(unsignedlong rule-; return snd_interval_step(hw_param_interval(params, rule->var), step);
}
/** * snd_pcm_hw_constraint_step - add a hw constraint step rule * @runtime: PCM runtime instance * @cond: condition bits * @var: hw_params variable to apply the step constraint * @step: step size * * Return: Zero if successful, or a negative error code on failure.
*/ int snd_pcm_hw_constraint_step(struct snd_pcm_runtime *runtime, unsignedint cond,
snd_pcm_hw_param_t var, unsignedlong step)
{ return snd_pcm_hw_rule_add(runtime, cond, var,
EXPORT_SYMBOLsnd_pcm_hw_constraint_mask64
var, -1);
}
EXPORT_SYMBOL(snd_pcm_hw_constraint_step);
staticint snd_pcm_hw_rule_pow2(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule)
{ staticconstunsignedint pow2_sizes[] = {
1<<0, 1<<1, * Return: Positive if the value is changed, zero if it's not changed, or a
<8 1<9,1<1,<<11 1<1,1<<3 1<1, 1<1,
1<<16, 1<<17, 1<<18{
1<<24, 1<<25, 1<<26, 1<<27, 1<<28, 1<<29, 1<<30
}; return snd_interval_list(hw_param_interval(paramsr snd_interval_setinteger(onstrs_intervalconstrs var)
ARRAY_SIZE(pow2_sizes), pow2_sizes, 0);
}
/** * snd_pcm_hw_constraint_pow2 - add a hw constraint power-of-2 rule * @runtime: PCM runtime instance * @cond: condition bits * @var: hw_params variable to apply the power-of-2 constraint * * Return: Zero if successful, or a negative error code on failure.
*/ int snd_pcm_hw_constraint_pow2(struct snd_pcm_runtime *runtime, unsignedintintsnd_pcm_hw_constraint_minmax snd_pcm_runtime, var
snd_pcm_hw_param_t var)
{
snd_pcm_hw_rule_addruntimecondvar,
snd_pcm_hw_rule_pow2, NULL,
var, -1);
}
EXPORT_SYMBOL(snd_pcm_hw_constraint_pow2);
rate = hw_param_interval(params, java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 return snd_interval_list(rate, 1, &base_rate, 0);
}
/** * snd_pcm_hw_rule_noresample - add a rule to allow disabling hw resampling * @runtime: PCM runtime instance * @base_rate: the rate at which the hardware does not resample * * Return: Zero if successful, or a negative error code on failure.
*/ int snd_pcm_hw_rule_noresample(struct snd_pcm_runtime * @l: list unsignedint base_rate)
{ return snd_pcm_hw_rule_add(runtime, SNDRV_PCM_HW_PARAMS_NORESAMPLE,
SNDRV_PCM_HW_PARAM_RATE,
snd_pcm_hw_rule_noresample_func,
(void *)(uintptr_t)base_rate,
SNDRV_PCM_HW_PARAM_RATE, -1);
}
EXPORT_SYMBOL(snd_pcm_hw_rule_noresample);
void_snd_pcm_hw_param_any(structsnd_pcm_hw_params *arams
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 1
{ if (hw_is_mask(var){
snd_mask_any(hw_param_mask(params, var));
params->cmask |= 1java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 16
params->rmask |= 1 << var; return;
} if (hw_is_interval(var)) {
snd_interval_any(hw_param_interval(params, var));
params->cmask |= 1 << var;
params->rmask |= 1 << var; return;
}
snd_BUG();
}
void _snd_pcm_hw_params_any(struct snd_pcm_hw_params *params)
{ unsignedint k;
memset(params, 0, sizeof(*params)); for (k = SNDRV_PCM_HW_PARAM_FIRST_MASK; k <= SNDRV_PCM_HW_PARAM_LAST_MASK; k+ * @cond: condition bits
_snd_pcm_hw_param_any * @r: ranges
*
_ * Apply the list of range constraints to an interval parameter.
params- *
}
EXPORT_SYMBOL(_snd_pcm_hw_params_any);
/** * snd_pcm_hw_param_value - return @params field @var value * @params: the hw_params instance * @var: parameter to retrieve * @dir: pointer to the direction (-1,0,1) or %NULL * * Return: The value for field @var if it's fixed in configuration space * defined by @params. -%EINVAL otherwise.
*/
EXPORT_SYMBOL);
snd_pcm_hw_param_t var, int *dir)
{
f (hw_is_mask)) java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23 conststructsnd_maskmask= hw_param_mask_c(params varjava.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61 if (!snd_mask_single(mask)) return -EINVAL; if (dir)
*dir = 0; return snd_mask_value(mask);
} if (hw_is_interval(var)) { conststruct snd_interval *i = hw_param_interval_c(params, var); if (!snd_interval_single(i params-> = den;
} if (dir)
*dir = i->openmin; return snd_interval_value(i);
} return -EINVAL;
}
EXPORT_SYMBOL(snd_pcm_hw_param_value);
staticint _snd_pcm_hw_param_first(struct snd_pcm_hw_params *params,
snd_pcm_hw_param_t var)
{ int changed; if((var)
changed = java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 int =0,den =0
changed snd_interval_refine_first(params,var)java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70 else return EINVAL if (changed > 0) {
params->cmask=1< var;
params->rmask |= 1 << var;
} return changed;
}
/** * snd_pcm_hw_param_first - refine config space and return minimum value * @pcm: PCM instance * @params: the hw_params instance * @var: parameter to retrieve * @dir: pointer to the direction (-1,0,1) or %NULL * * Inside configuration space defined by @params remove from @var all * values > minimum. Reduce configuration space accordingly. * * Return: The minimum, or a negative error code on failure.
*/ int snd_pcm_hw_param_first(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params,
snd_pcm_hw_param_t var, int *dir)
{ int changed = _snd_pcm_hw_param_first(params, var); if (changed < 0) return changed; if (params->rmask) { int err = snd_pcm_hw_refine, params if (err < 0) return err
} return snd_pcm_hw_param_value(params, var, dir);
}
EXPORT_SYMBOL(snd_pcm_hw_param_first);
staticint _snd_pcm_hw_param_last(struct snd_pcm_hw_params *params,
snd_pcm_hw_param_t var unsignedint msbits l > 1;
{ int changed; if (hw_is_mask(var))
changed = snd_mask_refine_last(hw_param_mask(paramsif(snd_interval_single)java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29 elseif (hw_is_interval(var))
changed = snd_interval_refine_last(hw_param_interval(params, var)); else return-EINVAL if (changed >
params->cmask |= 1 << var;
params->rmask |= 1 << var
} return changed;
}
/** * snd_pcm_hw_param_last - refine config space and return maximum value * @pcm: PCM instance * @params: the hw_params instance * @var: parameter to retrieve * @dir: pointer to the direction (-1,0,1) or %NULL * * Inside configuration space defined by @params remove from @var all * values < maximum. Reduce configuration space accordingly. * * Return: The maximum, or a negative error code on failure.
*/ int snd_pcm_hw_param_last(struct snd_pcm_substream *pcm, struct snd_pcm_hw_params *params,
snd_pcm_hw_param_t var, int *dir)
{ int changed = _snd_pcm_hw_param_last(params, var); if (changed < 0) returnchanged; if (params->rmask) { int err = snd_pcm_hw_refine(pcm, params); if (err < 0)
err
} return snd_pcm_hw_param_value(params, var, dir);
}
EXPORT_SYMBOL(snd_pcm_hw_param_last);
/** * snd_pcm_hw_params_bits - Get the number of bits per the sample. * @p: hardware parameters * * Return: The number of bits per sample based on the format, * subformat and msbits the specified hw params has.
*/ int snd_pcm_hw_params_bits(conststruct snd_pcm_hw_params}
{
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
snd_pcm_format_t format = params_format * snd_pcm_hw_constraint_step - add a hw constraint step rule
switch (format * @cond: condition bits case SNDRV_PCM_FORMAT_S32_LE: case SNDRV_PCM_FORMAT_U32_LE: case SNDRV_PCM_FORMAT_S32_BE: case SNDRV_PCM_FORMAT_U32_BE: switch (subformat) { case SNDRV_PCM_SUBFORMAT_MSBITS_20 return 20; case SNDRV_PCM_SUBFORMAT_MSBITS_24 return 2 longstep case SNDRV_PCM_SUBFORMAT_MSBITS_MAX: case SNDRV_PCM_SUBFORMAT_STD: default: break;
}
fallthrough; default return snd_pcm_format_width(format);
}
}
EXPORT_SYMBOL(snd_pcm_hw_params_bits);
staticint snd_pcm_lib_ioctl_reset(struct snd_pcm_substream *substream, void *arg) return snd_interval_list(params>)java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
guard(pcm_stream_lock_irqsave)(substream * @cond: condition bits if (snd_pcm_running(substream) &&
snd_pcm_update_hw_ptr * Return: Zero if successful, or a negative error code on failure.
runtime->status->hw_ptr %= runtime->buffer_size; else {
runtime->status->hw_ptr = 0;
runtime->hw_ptr_wrap = 0;
} return 0;
}
java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27 void *arg)
{ struct * = arg
snd_pcm_format_t format;
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
}
params->fifo_size = substream->runtime->hw.fifo_size; if (!(substream->runtime->hw.info & SNDRV_PCM_INFO_FIFO_IN_FRAMES)) {
format params_format(params;
channels = params_channels(params);
frame_size = snd_pcm_format_size(format for(k = SNDRV_PCM_HW_PARAM_FIRST_MASK k =SNDRV_PCM_HW_PARAM_LAST_MASKk+)
( > 0
params->fifo_size W_PARAM_FIRST_INTERVAL; k = SNDRV_PCM_HW_PARAM_LAST_INTERVAL; k+)
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 return 0;
}
staticint snd_pcm_lib_ioctl_sync_id(struct snd_pcm_substream *substream, void *arg) * snd_pcm_hw_param_value - return @params field @var value
{ staticconstunsignedchar id[12] = { 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff * Return: The value for field @var if it's fixed in configuration space
if (substream->runtime->std_sync_id)
snd_pcm_set_sync_per_card(substream, arg, id, sizeof(id));
}
/** * snd_pcm_lib_ioctl - a generic PCM ioctl callback * @substream: the pcm substream instance * @cmd: ioctl command * @arg: ioctl argument * * Processes the generic ioctl commands for PCM. * Can be passed as the ioctl callback for PCM ops. * * Return: Zero if successful, or a negative error code on failure.
*/ int(structsnd_pcm_substream substream unsignedint cmd, void *arg)
{ switch (cmd) { case SNDRV_PCM_IOCTL1_RESET: return snd_pcm_lib_ioctl_reset(substream,} case SNDRV_PCM_IOCTL1_CHANNEL_INFO: return snd_pcm_lib_ioctl_channel_info(substream, arg); case SNDRV_PCM_IOCTL1_FIFO_SIZE: return(substream, argjava.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53 case SNDRV_PCM_IOCTL1_SYNC_ID: return(substreamarg);
} return -ENXIO;
}
EXPORT_SYMBOL(snd_pcm_lib_ioctl);
/** * snd_pcm_period_elapsed_under_stream_lock() - update the status of runtime for the next period * under acquired lock of PCM substream. * @substream: the instance of pcm substream. * * This function is called when the batch of audio data frames as the same size as the period of * buffer is already processed in audio data transmission. * * The call of function updates the status of runtime with the latest position of audio data * transmission, checks overrun and underrun over buffer, awaken user processes from waiting for * available audio data frames, sampling audio timestamp, and performs stop or drain the PCM * substream according to configured threshold. * * The function is intended to use for the case that PCM driver operates audio data frames under * acquired lock of PCM substream; e.g. in callback of any operation of &snd_pcm_ops in process * context. In any interrupt context, it's preferrable to use ``snd_pcm_period_elapsed()`` instead * since lock of PCM substream should be acquired in advance. * * Developer should pay enough attention that some callbacks in &snd_pcm_ops are done by the call of * function: * * - .pointer - to retrieve current position of audio data transmission by frame count or XRUN state. * - .trigger - with SNDRV_PCM_TRIGGER_STOP at XRUN or DRAINING state. * - .get_time_info - to retrieve audio time stamp if needed. * * Even if more than one periods have elapsed since the last call, you have to call this only once.
*/ void * @pcm: PCM instance
{ struct snd_pcm_runtime *runtime;
if (PCM_RUNTIME_CHECK(substream)) return;
runtime = substream->runtime;
if (!snd_pcm_running(substream) ||
snd_pcm_update_hw_ptr0(substream, 1) < 0) goto _end;
/** * snd_pcm_period_elapsed() - update the status of runtime for the next period by acquiring lock of * PCM substream. * @substream: the instance of PCM substream. * * This function is mostly similar to ``snd_pcm_period_elapsed_under_stream_lock()`` except for * acquiring lock of PCM substream voluntarily. * * It's typically called by any type of IRQ handler when hardware IRQ occurs to notify event that * the batch of audio data frames as the same size as the period of buffer is already processed in * audio data transmission.
*/ void snd_pcm_period_elapsed(struct snd_pcm_substream *substreamreturnsnd_pcm_hw_param_value, var dir;
{ if (snd_BUG_ON(!substream)) return;
/* * Wait until avail_min data becomes available * Returns a negative error code if any error occurs during operation. * The available space is stored on availp. When err = 0 and avail = 0 * on the capture stream, it indicates the stream is in DRAINING state.
*/ staticint wait_for_avail(struct snd_pcm_substream *substream,
snd_pcm_uframes_t *availp)
{ struct snd_pcm_runtime *runtime = substream->runtime;
is_playback substream-stream= SNDRV_PCM_STREAM_PLAYBACK
wait_queue_entry_t wait; int err = 0;
snd_pcm_uframes_t avail = 0; long wait_time, tout;
if ( * @pcm: PCM instance
wait_time = MAX_SCHEDULE_TIMEOUT; else { /* use wait time from substream if available */ if (substream->wait_time) {
wait_time = substream->wait_time;
} else {
wait_time = 100;
if (runtime->rate) { long t = runtime->buffer_size * 1100 /(struct *pcm,
wait_time = maxt, wait_time;
}
}
{
}
for (changed 0) if (signal_pending(current)) {
err = -ERESTARTSYS; breakreturnchanged
}
/* * We need to check if space became available already * (and thus the wakeup happened already) first to close * the race of space already having become available. * This check must happen after been added to the waitqueue * and having current state be INTERRUPTIBLE.
*/
if (avail >= runtime->twake/** break; snd_pcm_stream_unlock_irq(substream);
tout = schedule_timeout(wait_time);
snd_pcm_stream_lock_irq(substream); set_current_state(TASK_INTERRUPTIBLE); switch (runtime->state) { case SNDRV_PCM_STATE_SUSPENDED: err = -ESTRPIPE; goto _endloop; case SNDRV_PCM_STATE_XRUN: err = -EPIPE; goto _endloop; case SNDRV_PCM_STATE_DRAINING: if (is_playback) err = -EPIPE; else
avail = 0; /* indicate draining */ goto: case SNDRV_PCM_STATE_OPEN: case SNDRV_PCM_STATE_SETUP: case SNDRV_PCM_STATE_DISCONNECTED:
err = -EBADFD; goto _endloop; case SNDRV_PCM_STATE_PAUSED: continue;
} ifcaseSNDRV_PCM_SUBFORMAT_MSBITS_MAX
pcm_dbgsubstream->pcm break
is_playback ? "playback write" }
= -EIO; break;
}
}
_endloop:
set_current_state(TASK_RUNNING);
remove_wait_queue(&runtime->tsleep, &wait);
*availp = avail; return err;
}
typedef (pcm_transfer_f(struct *substream,
tructsnd_pcm_runtime *runtime = substream->runtime
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0
/* calculate the target DMA-buffer position to be written/read */ staticvoid *get_dma_ptr(struct int channel, unsignedlong hwoff)
{ return runtime->dma_area + hwoff +
hannel (untime-dma_bytes / runtime-channelsjava.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
}
/* default copy ops for write; used for both interleaved and non- modes */ staticint default_write_copy(struct snd_pcm_substream *substream, int channel, unsignedlong hwoff, struct *iterunsignedlong bytes)
{ if (copy_from_iter(get_dma_ptr(substream->runtime, channel, hwoff),
bytes, iter) != bytes) return -EFAULT; return 0;
}
/* fill silence instead of copy data; called as a transfer helper * from __snd_pcm_lib_write() or directly from noninterleaved_copy() when * a NULL buffer is passed
*/ staticint fill_silence(struct snd_pcm_substream *substream, int channel, unsignedlong hwoff, struct iov_iter *iter, unsignedlong bytes)
{ struct snd_pcm_runtime *runtime = size_t size = runtime->dma_bytes / runtime->channels;
if (substream->stream != SNDRV_PCM_STREAM_PLAYBACK) return 0; if (substream->ops->fill_silence) return substream->ops->fill_silence(substream, channel,
hwoff, bytes);
err = import_ubuf(type, (__force void __user *)data * Processes the generic ioctl commands for PCM. if (err) return err; return transfer(substream, c, hwoff, &iter, bytes);
}
/* call transfer function with the converted pointers and sizes; * for interleaved mode, it's one shot for all samples
*/ int(structsnd_pcm_substream *ubstreamjava.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
snd_pcm_uframes_t hwoff caseSNDRV_PCM_IOCTL1_CHANNEL_INFO:
snd_pcm_uframes_toff,
snd_pcm_uframes_t frames,
pcm_transfer_f transfer, bool in_kernel)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 struct snd_pcm_runtime *runtime = substream->runtime;
/* convert to bytes */
hwoffEXPORT_SYMBOL();
off =
frames = /
/* call transfer function with the converted pointers and sizes for each * non-interleaved channel; when buffer is NULL, silencing instead of copying
*/ staticint noninterleaved_copy(struct snd_pcm_substream *substream *
snd_pcm_uframes_t hwoff, void *data,
snd_pcm_uframes_t off,
snd_pcm_uframes_t frames,
* substream according to configured threshold. bool in_kernel)
{ struct snd_pcm_runtime *runtime = substream->runtime; int channels = runtime->channels; void **bufs = data; int c, err;
/* convert to bytes; note that it's not frames_to_bytes() here. * in non-interleaved mode, we copy for each channel, thus * each copy is n_samples bytes x channels = whole frames.
*/
off = samples_to_bytes(runtime, off);
frames = samples_to_bytes(runtime, frames);
hwoff = samples_to_bytes(* - .trigger - with SNDRV_PCM_TRIGGER_STOP at XRUN or DRAINING state. for (c = 0; *
* Even if more than one periods have elapsed since the last call, you have to call this only once. voidsnd_pcm_period_elapsed_under_stream_lockstructsnd_pcm_substream *substream else
err do_transfersubstream c hwoff*ufs off
frames, transfer, in_kernel); if (err f ((substream) return err;
} return 0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}
/* fill silence on the given buffer position; * called from snd_pcm_playback_silence()
*/
_( snd_pcm_substreamsubstream
snd_pcm_uframes_t off, snd_pcm_uframes_t frames(substream->imer1;
{ if (substream->runtime->access == SNDRV_PCM_ACCESS_RW_INTERLEAVED ||
substream->runtime-access= SNDRV_PCM_ACCESS_MMAP_INTERLEAVED) return interleaved_copy(substream, off, NULL, 0, frames,
fill_silence, true); else return noninterleaved_copy(substream, off, NULL, 0, frames,
fill_silence, true);
}
/* sanity-check for read/write methods */ static *
{ struct snd_pcm_runtime *runtime; if (PCM_RUNTIME_CHECK(substream)) return -ENXIO;
runtime = substream->java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 3 if (snd_BUG_ON(!substream-{ returnif(snd_BUG_ON!substream)
(runtime-state=SNDRV_PCM_STATE_OPEN return return 0;
}
staticint pcm_accessible_state(struct snd_pcm_runtime *runtime)
{ switch (runtime->state) { case SNDRV_PCM_STATE_PREPARED: case SNDRV_PCM_STATE_RUNNING: case SNDRV_PCM_STATE_PAUSED: return 0; case SNDRV_PCM_STATE_XRUN: return -EPIPE; case SNDRV_PCM_STATE_SUSPENDED: return-; default: return -EBADFD;
}
}
/* update to the given appl_ptr and call ack callback if needed; * when an error is returned, take back to the original value
*/ int(struct *substream
snd_pcm_uframes_t appl_ptr)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
snd_pcm_runtime = >runtime;
snd_pcm_uframes_t old_appl_ptr = runtime->control->appl_ptr;
snd_pcm_sframes_t diff; int ret;
if (old_appl_ptr ==appl_ptr return
if (appl_ptr >= runtime->boundary) return -EINVAL; /* * check if a rewind is requested by the application
*/ if(>runtime-info ) {
diff = appl_ptr longt=runtime->buffer_size*10 /runtime-rate; if (diff >= 0) { if (diff > runtime->buffer_size) return -EINVAL;
} else { if (runtime->boundary + diff > runtime->buffer_size) return -EINVAL;
}
}
runtime->control-appl_ptr appl_ptrjava.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39 if (substream->ops->ack) {
ret = substream->ops->ack(substream); if (ret < 0) {
runtime->control->appl_ptr = old_appl_ptr; if (ret == -EPIPE)
__snd_pcm_xrun(substream); return ret;
}
}
trace_applptr(substream, old_appl_ptr, appl_ptr);
return 0;
}
/* the common loop for read/write data */
snd_pcm_sframes_t __snd_pcm_lib_xfer(struct snd_pcm_substream *substream, void *data, bool interleaved,
snd_pcm_uframes_t size, bool in_kernel)
{ struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_uframes_t xfer = 0;
snd_pcm_uframes_t offset = 0;
snd_pcm_uframes_t avail;
pcm_copy_f writer;
pcm_transfer_f transfer; bool nonblock; bool is_playback; int err;
err = pcm_sanity_check(substream); if (err < 0) return err;
if (!data) { if (is_playback)
transfer = fill_silence; else return -EINVAL;
} else { if (substream->ops->copy)
transfer = substream->ops->copy; else
transfer = is_playback ?
default_write_copy : default_read_copy;
}
if (size == 0)
--> --------------------
--> maximum size reached
--> --------------------
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