sound/core/pcm_lib.c

1138  * @var: the variable to evaluate
1146 			int var,
1170 	c->var = var;
1192  * @var: hw_params variable to apply the mask
1199 int snd_pcm_hw_constraint_mask(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var,
1203 	struct snd_mask *maskp = constrs_mask(constrs, var);
1214  * @var: hw_params variable to apply the mask
1221 int snd_pcm_hw_constraint_mask64(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var,
1225 	struct snd_mask *maskp = constrs_mask(constrs, var);
1238  * @var: hw_params variable to apply the integer constraint
1245 int snd_pcm_hw_constraint_integer(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var)
1248 	return snd_interval_setinteger(constrs_interval(constrs, var));
1255  * @var: hw_params variable to apply the range
1264 int snd_pcm_hw_constraint_minmax(struct snd_pcm_runtime *runtime, snd_pcm_hw_param_t var,
1273 	return snd_interval_refine(constrs_interval(constrs, var), &t);
1281 	return snd_interval_list(hw_param_interval(params, rule->var), list->count, list->list, list->mask);
1289  * @var: hw_params variable to apply the list constraint
1298 			       snd_pcm_hw_param_t var,
1301 	return snd_pcm_hw_rule_add(runtime, cond, var,
1303 				   var, -1);
1311 	return snd_interval_ranges(hw_param_interval(params, rule->var),
1320  * @var: hw_params variable to apply the list of range constraints
1329 				 snd_pcm_hw_param_t var,
1332 	return snd_pcm_hw_rule_add(runtime, cond, var,
1334 				   var, -1);
1344 	err = snd_interval_ratnum(hw_param_interval(params, rule->var),
1346 	if (err >= 0 && den && rule->var == SNDRV_PCM_HW_PARAM_RATE) {
1357  * @var: hw_params variable to apply the ratnums constraint
1364 				  snd_pcm_hw_param_t var,
1367 	return snd_pcm_hw_rule_add(runtime, cond, var,
1369 				   var, -1);
1378 	int err = snd_interval_ratden(hw_param_interval(params, rule->var),
1380 	if (err >= 0 && den && rule->var == SNDRV_PCM_HW_PARAM_RATE) {
1391  * @var: hw_params variable to apply the ratdens constraint
1398 				  snd_pcm_hw_param_t var,
1401 	return snd_pcm_hw_rule_add(runtime, cond, var,
1403 				   var, -1);
1457 	return snd_interval_step(hw_param_interval(params, rule->var), step);
1464  * @var: hw_params variable to apply the step constraint
1471 			       snd_pcm_hw_param_t var,
1474 	return snd_pcm_hw_rule_add(runtime, cond, var,
1476 				   var, -1);
1488 	return snd_interval_list(hw_param_interval(params, rule->var),
1496  * @var: hw_params variable to apply the power-of-2 constraint
1502 			       snd_pcm_hw_param_t var)
1504 	return snd_pcm_hw_rule_add(runtime, cond, var,
1506 				   var, -1);
1539 				  snd_pcm_hw_param_t var)
1541 	if (hw_is_mask(var)) {
1542 		snd_mask_any(hw_param_mask(params, var));
1543 		params->cmask |= 1 << var;
1544 		params->rmask |= 1 << var;
1547 	if (hw_is_interval(var)) {
1548 		snd_interval_any(hw_param_interval(params, var));
1549 		params->cmask |= 1 << var;
1550 		params->rmask |= 1 << var;
1569  * snd_pcm_hw_param_value - return @params field @var value
1571  * @var: parameter to retrieve
1574  * Return: The value for field @var if it's fixed in configuration space
1578 			   snd_pcm_hw_param_t var, int *dir)
1580 	if (hw_is_mask(var)) {
1581 		const struct snd_mask *mask = hw_param_mask_c(params, var);
1588 	if (hw_is_interval(var)) {
1589 		const struct snd_interval *i = hw_param_interval_c(params, var);
1601 				snd_pcm_hw_param_t var)
1603 	if (hw_is_mask(var)) {
1604 		snd_mask_none(hw_param_mask(params, var));
1605 		params->cmask |= 1 << var;
1606 		params->rmask |= 1 << var;
1607 	} else if (hw_is_interval(var)) {
1608 		snd_interval_none(hw_param_interval(params, var));
1609 		params->cmask |= 1 << var;
1610 		params->rmask |= 1 << var;
1618 				   snd_pcm_hw_param_t var)
1621 	if (hw_is_mask(var))
1622 		changed = snd_mask_refine_first(hw_param_mask(params, var));
1623 	else if (hw_is_interval(var))
1624 		changed = snd_interval_refine_first(hw_param_interval(params, var));
1628 		params->cmask |= 1 << var;
1629 		params->rmask |= 1 << var;
1639  * @var: parameter to retrieve
1642  * Inside configuration space defined by @params remove from @var all
1649 			   snd_pcm_hw_param_t var, int *dir)
1651 	int changed = _snd_pcm_hw_param_first(params, var);
1659 	return snd_pcm_hw_param_value(params, var, dir);
1664 				  snd_pcm_hw_param_t var)
1667 	if (hw_is_mask(var))
1668 		changed = snd_mask_refine_last(hw_param_mask(params, var));
1669 	else if (hw_is_interval(var))
1670 		changed = snd_interval_refine_last(hw_param_interval(params, var));
1674 		params->cmask |= 1 << var;
1675 		params->rmask |= 1 << var;
1685  * @var: parameter to retrieve
1688  * Inside configuration space defined by @params remove from @var all
1695 			  snd_pcm_hw_param_t var, int *dir)
1697 	int changed = _snd_pcm_hw_param_last(params, var);
1705 	return snd_pcm_hw_param_value(params, var, dir);