/**
* snd_interval_div - refine the interval value with division
+ * @a: dividend
+ * @b: divisor
+ * @c: quotient
*
* c = a / b
*
/**
* 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.
/**
* snd_interval_mulkdiv - refine the interval value
+ * @a: dividend 1
+ * @k: dividend 2 (as integer)
+ * @b: divisor
+ * @c: result
*
* c = a * k / b
*
/**
* snd_interval_ratnum - refine the interval value
+ * @i: interval to refine
+ * @rats_count: number of ratnum_t
+ * @rats: ratnum_t array
+ * @nump: pointer to store the resultant numerator
+ * @denp: pointer to store the resultant denominator
*
* Returns non-zero if the value is changed, zero if not changed.
*/
/**
* snd_interval_ratden - refine the interval value
+ * @i: interval to refine
+ * @rats_count: number of ratden_t
+ * @rats: ratden_t array
+ * @nump: pointer to store the resultant numerator
+ * @denp: pointer to store the resultant denominator
*
* Returns non-zero if the value is changed, zero if not changed.
*/
/**
* snd_pcm_hw_constraint_mask
+ * @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 mask parameter.
*/
int snd_pcm_hw_constraint_mask(snd_pcm_runtime_t *runtime, snd_pcm_hw_param_t var,
u_int32_t mask)
/**
* snd_pcm_hw_constraint_mask64
+ * @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 mask parameter.
*/
int snd_pcm_hw_constraint_mask64(snd_pcm_runtime_t *runtime, snd_pcm_hw_param_t var,
u_int64_t mask)
/**
* snd_pcm_hw_constraint_integer
+ * @runtime: PCM runtime instance
+ * @var: hw_params variable to apply the integer constraint
+ *
+ * Apply the constraint of integer to an interval parameter.
*/
int snd_pcm_hw_constraint_integer(snd_pcm_runtime_t *runtime, snd_pcm_hw_param_t var)
{
/**
* snd_pcm_hw_constraint_minmax
+ * @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.
*/
int snd_pcm_hw_constraint_minmax(snd_pcm_runtime_t *runtime, snd_pcm_hw_param_t var,
unsigned int min, unsigned int max)
/**
* snd_pcm_hw_constraint_list
+ * @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.
*/
int snd_pcm_hw_constraint_list(snd_pcm_runtime_t *runtime,
unsigned int cond,
/**
* snd_pcm_hw_constraint_ratnums
+ * @runtime: PCM runtime instance
+ * @cond: condition bits
+ * @var: hw_params variable to apply the ratnums constraint
+ * @r: ratnums_t constriants
*/
int snd_pcm_hw_constraint_ratnums(snd_pcm_runtime_t *runtime,
unsigned int cond,
/**
* snd_pcm_hw_constraint_ratdens
+ * @runtime: PCM runtime instance
+ * @cond: condition bits
+ * @var: hw_params variable to apply the ratdens constraint
+ * @r: ratdens_t constriants
*/
int snd_pcm_hw_constraint_ratdens(snd_pcm_runtime_t *runtime,
unsigned int cond,
/**
* snd_pcm_hw_constraint_msbits
+ * @runtime: PCM runtime instance
+ * @cond: condition bits
+ * @width: sample bits width
+ * @msbits: msbits width
*/
int snd_pcm_hw_constraint_msbits(snd_pcm_runtime_t *runtime,
unsigned int cond,
/**
* snd_pcm_hw_constraint_step
+ * @runtime: PCM runtime instance
+ * @cond: condition bits
+ * @var: hw_params variable to apply the step constraint
+ * @step: step size
*/
int snd_pcm_hw_constraint_step(snd_pcm_runtime_t *runtime,
unsigned int cond,
/**
* snd_pcm_hw_constraint_pow2
+ * @runtime: PCM runtime instance
+ * @cond: condition bits
+ * @var: hw_params variable to apply the power-of-2 constraint
*/
int snd_pcm_hw_constraint_pow2(snd_pcm_runtime_t *runtime,
unsigned int cond,
#define INT_MIN ((int)((unsigned int)INT_MAX+1))
#endif
-void _snd_pcm_hw_param_any(snd_pcm_hw_params_t *params, snd_pcm_hw_param_t var)
+static void _snd_pcm_hw_param_any(snd_pcm_hw_params_t *params,
+ snd_pcm_hw_param_t var)
{
if (hw_is_mask(var)) {
snd_mask_any(hw_param_mask(params, var));
snd_BUG();
}
-/**
+#if 0
+/*
* snd_pcm_hw_param_any
*/
int snd_pcm_hw_param_any(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
_snd_pcm_hw_param_any(params, var);
return snd_pcm_hw_refine(pcm, params);
}
+#endif /* 0 */
void _snd_pcm_hw_params_any(snd_pcm_hw_params_t *params)
{
params->info = ~0U;
}
-/**
+#if 0
+/*
* snd_pcm_hw_params_any
*
* Fill PARAMS with full configuration space boundaries
_snd_pcm_hw_params_any(params);
return snd_pcm_hw_refine(pcm, params);
}
+#endif /* 0 */
/**
* snd_pcm_hw_param_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 PAR if it's fixed in configuration space
* defined by PARAMS. Return -EINVAL otherwise
*/
-int snd_pcm_hw_param_value(const snd_pcm_hw_params_t *params,
- snd_pcm_hw_param_t var, int *dir)
+static int snd_pcm_hw_param_value(const snd_pcm_hw_params_t *params,
+ snd_pcm_hw_param_t var, int *dir)
{
if (hw_is_mask(var)) {
const snd_mask_t *mask = hw_param_mask_c(params, var);
/**
* snd_pcm_hw_param_value_min
+ * @params: the hw_params instance
+ * @var: parameter to retrieve
+ * @dir: pointer to the direction (-1,0,1) or NULL
*
* Return the minimum value for field PAR.
*/
/**
* snd_pcm_hw_param_value_max
+ * @params: the hw_params instance
+ * @var: parameter to retrieve
+ * @dir: pointer to the direction (-1,0,1) or NULL
*
* Return the maximum value for field PAR.
*/
return changed;
}
-/**
+#if 0
+/*
* snd_pcm_hw_param_setinteger
*
* Inside configuration space defined by PARAMS remove from PAR all
}
return 0;
}
+#endif /* 0 */
-int _snd_pcm_hw_param_first(snd_pcm_hw_params_t *params,
- snd_pcm_hw_param_t var)
+static int _snd_pcm_hw_param_first(snd_pcm_hw_params_t *params,
+ snd_pcm_hw_param_t var)
{
int changed;
if (hw_is_mask(var))
/**
* snd_pcm_hw_param_first
+ * @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 PAR all
* values > minimum. Reduce configuration space accordingly.
* Return the minimum.
*/
-int snd_pcm_hw_param_first(snd_pcm_t *pcm,
- snd_pcm_hw_params_t *params,
- snd_pcm_hw_param_t var, int *dir)
+static int snd_pcm_hw_param_first(snd_pcm_t *pcm,
+ snd_pcm_hw_params_t *params,
+ snd_pcm_hw_param_t var, int *dir)
{
int changed = _snd_pcm_hw_param_first(params, var);
if (changed < 0)
return snd_pcm_hw_param_value(params, var, dir);
}
-int _snd_pcm_hw_param_last(snd_pcm_hw_params_t *params,
- snd_pcm_hw_param_t var)
+static int _snd_pcm_hw_param_last(snd_pcm_hw_params_t *params,
+ snd_pcm_hw_param_t var)
{
int changed;
if (hw_is_mask(var))
/**
* snd_pcm_hw_param_last
+ * @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 PAR all
* values < maximum. Reduce configuration space accordingly.
* Return the maximum.
*/
-int snd_pcm_hw_param_last(snd_pcm_t *pcm,
- snd_pcm_hw_params_t *params,
- snd_pcm_hw_param_t var, int *dir)
+static int snd_pcm_hw_param_last(snd_pcm_t *pcm,
+ snd_pcm_hw_params_t *params,
+ snd_pcm_hw_param_t var, int *dir)
{
int changed = _snd_pcm_hw_param_last(params, var);
if (changed < 0)
/**
* snd_pcm_hw_param_min
+ * @pcm: PCM instance
+ * @params: the hw_params instance
+ * @var: parameter to retrieve
+ * @val: minimal value
+ * @dir: pointer to the direction (-1,0,1) or NULL
*
* Inside configuration space defined by PARAMS remove from PAR all
* values < VAL. Reduce configuration space accordingly.
* Return new minimum or -EINVAL if the configuration space is empty
*/
-int snd_pcm_hw_param_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
- snd_pcm_hw_param_t var, unsigned int val, int *dir)
+static int snd_pcm_hw_param_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
+ snd_pcm_hw_param_t var, unsigned int val,
+ int *dir)
{
int changed = _snd_pcm_hw_param_min(params, var, val, dir ? *dir : 0);
if (changed < 0)
return snd_pcm_hw_param_value_min(params, var, dir);
}
-int _snd_pcm_hw_param_max(snd_pcm_hw_params_t *params,
- snd_pcm_hw_param_t var, unsigned int val, int dir)
+static int _snd_pcm_hw_param_max(snd_pcm_hw_params_t *params,
+ snd_pcm_hw_param_t var, unsigned int val,
+ int dir)
{
int changed;
int open = 0;
/**
* snd_pcm_hw_param_max
+ * @pcm: PCM instance
+ * @params: the hw_params instance
+ * @var: parameter to retrieve
+ * @val: maximal value
+ * @dir: pointer to the direction (-1,0,1) or NULL
*
* Inside configuration space defined by PARAMS remove from PAR all
* values >= VAL + 1. Reduce configuration space accordingly.
* Return new maximum or -EINVAL if the configuration space is empty
*/
-int snd_pcm_hw_param_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
- snd_pcm_hw_param_t var, unsigned int val, int *dir)
+static int snd_pcm_hw_param_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
+ snd_pcm_hw_param_t var, unsigned int val,
+ int *dir)
{
int changed = _snd_pcm_hw_param_max(params, var, val, dir ? *dir : 0);
if (changed < 0)
/**
* snd_pcm_hw_param_set
+ * @pcm: PCM instance
+ * @params: the hw_params instance
+ * @var: parameter to retrieve
+ * @val: value to set
+ * @dir: pointer to the direction (-1,0,1) or NULL
*
* Inside configuration space defined by PARAMS remove from PAR all
* values != VAL. Reduce configuration space accordingly.
return snd_pcm_hw_param_value(params, var, NULL);
}
-int _snd_pcm_hw_param_mask(snd_pcm_hw_params_t *params,
- snd_pcm_hw_param_t var, const snd_mask_t *val)
+static int _snd_pcm_hw_param_mask(snd_pcm_hw_params_t *params,
+ snd_pcm_hw_param_t var, const snd_mask_t *val)
{
int changed;
assert(hw_is_mask(var));
/**
* snd_pcm_hw_param_mask
+ * @pcm: PCM instance
+ * @params: the hw_params instance
+ * @var: parameter to retrieve
+ * @val: mask to apply
*
* Inside configuration space defined by PARAMS remove from PAR all values
* not contained in MASK. Reduce configuration space accordingly.
/**
* snd_pcm_hw_param_near
+ * @pcm: PCM instance
+ * @params: the hw_params instance
+ * @var: parameter to retrieve
+ * @best: value to set
+ * @dir: pointer to the direction (-1,0,1) or NULL
*
* Inside configuration space defined by PARAMS set PAR to the available value
* nearest to VAL. Reduce configuration space accordingly.
/**
* snd_pcm_hw_param_choose
+ * @pcm: PCM instance
+ * @params: the hw_params instance
*
* Choose one configuration from configuration space defined by PARAMS
* The configuration chosen is that obtained fixing in this order:
if (((avail < runtime->control->avail_min && size > avail) ||
(size >= runtime->xfer_align && avail < runtime->xfer_align))) {
wait_queue_t wait;
- enum { READY, SIGNALED, ERROR, SUSPENDED, EXPIRED } state;
+ enum { READY, SIGNALED, ERROR, SUSPENDED, EXPIRED, DROPPED } state;
long tout;
if (nonblock) {
case SNDRV_PCM_STATE_SUSPENDED:
state = SUSPENDED;
goto _end_loop;
+ case SNDRV_PCM_STATE_SETUP:
+ state = DROPPED;
+ goto _end_loop;
default:
break;
}
snd_printd("playback write error (DMA or IRQ trouble?)\n");
err = -EIO;
goto _end_unlock;
+ case DROPPED:
+ err = -EBADFD;
+ goto _end_unlock;
default:
break;
}
} else if ((avail < runtime->control->avail_min && size > avail) ||
(size >= runtime->xfer_align && avail < runtime->xfer_align)) {
wait_queue_t wait;
- enum { READY, SIGNALED, ERROR, SUSPENDED, EXPIRED } state;
+ enum { READY, SIGNALED, ERROR, SUSPENDED, EXPIRED, DROPPED } state;
long tout;
if (nonblock) {
goto _end_loop;
case SNDRV_PCM_STATE_DRAINING:
goto __draining;
+ case SNDRV_PCM_STATE_SETUP:
+ state = DROPPED;
+ goto _end_loop;
default:
break;
}
snd_printd("capture read error (DMA or IRQ trouble?)\n");
err = -EIO;
goto _end_unlock;
+ case DROPPED:
+ err = -EBADFD;
+ goto _end_unlock;
default:
break;
}
EXPORT_SYMBOL(snd_interval_refine);
EXPORT_SYMBOL(snd_interval_list);
EXPORT_SYMBOL(snd_interval_ratnum);
-EXPORT_SYMBOL(snd_interval_muldivk);
-EXPORT_SYMBOL(snd_interval_mulkdiv);
-EXPORT_SYMBOL(snd_interval_div);
EXPORT_SYMBOL(_snd_pcm_hw_params_any);
EXPORT_SYMBOL(_snd_pcm_hw_param_min);
EXPORT_SYMBOL(_snd_pcm_hw_param_set);
EXPORT_SYMBOL(snd_pcm_hw_param_near);
EXPORT_SYMBOL(snd_pcm_hw_param_set);
EXPORT_SYMBOL(snd_pcm_hw_refine);
-EXPORT_SYMBOL(snd_pcm_hw_params);
EXPORT_SYMBOL(snd_pcm_hw_constraints_init);
EXPORT_SYMBOL(snd_pcm_hw_constraints_complete);
EXPORT_SYMBOL(snd_pcm_hw_constraint_list);
projects / linux-2.6 / blobdiff