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3549a4d926
There is some case that multiple ucm devices share an amixer Jack
like "Headphones", "Headset" and "Mic2" share the "Headphone Mic Jack",
When the Jack state is changed, the module-switch-on-port-available
will process them in the order they are in the jack->ucm_devices, and
the last device will decide the final setting.
But usually users put priority for those devices and expect the
final setting is based on the highest priority device if there is no
other policies like manual selection. So here do some change to store
the ucm_devices according to their priority (from low to high).
For example, we have ucm devices definition like below (ucm2):
SectionDevice."Mic2" {
Comment "Headphones Stereo Microphone"
...
Value {
CapturePriority 200
...
}
SectionDevice."Headset" {
Comment "Headset Mono Microphone"
...
Value {
CapturePriority 300
...
}
}
Without this patch, the final setting is based on Mic2, after applying
this patch, the final setting is based on the Headset (with higher
priority than Mic2).
Signed-off-by: Hui Wang <hui.wang@canonical.com>
73 lines
2.8 KiB
C
73 lines
2.8 KiB
C
#ifndef foopulsecoredynarrayhfoo
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#define foopulsecoredynarrayhfoo
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/***
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This file is part of PulseAudio.
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Copyright 2004-2008 Lennart Poettering
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
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***/
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#include <pulse/def.h>
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typedef struct pa_dynarray pa_dynarray;
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/* Implementation of a simple dynamically sized array for storing pointers.
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*
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* When the array is created, a free callback can be provided, which will be
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* then used when removing items from the array and when freeing the array. If
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* the free callback is not provided, the memory management of the stored items
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* is the responsibility of the array user. If there is need to remove items
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* from the array without freeing them, while also having the free callback
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* set, the functions with "steal" in their name can be used.
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*
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* Removing items from the middle of the array causes the last item to be
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* moved to the place of the removed item. That is, array ordering is not
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* preserved.
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*
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* The array doesn't support storing NULL pointers. */
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pa_dynarray* pa_dynarray_new(pa_free_cb_t free_cb);
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void pa_dynarray_free(pa_dynarray *array);
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void pa_dynarray_append(pa_dynarray *array, void *p);
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/* Returns the element at index i, or NULL if i is out of bounds. */
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void *pa_dynarray_get(pa_dynarray *array, unsigned i);
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/* Returns the last element, or NULL if the array is empty. */
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void *pa_dynarray_last(pa_dynarray *array);
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/* Returns -PA_ERR_NOENTITY if i is out of bounds, and zero otherwise. */
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int pa_dynarray_remove_by_index(pa_dynarray *array, unsigned i);
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/* Returns -PA_ERR_NOENTITY if p is not found in the array, and zero
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* otherwise. If the array contains multiple occurrences of p, only one of
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* them is removed (and it's unspecified which one). */
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int pa_dynarray_remove_by_data(pa_dynarray *array, void *p);
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/* Returns the removed item, or NULL if the array is empty. */
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void *pa_dynarray_steal_last(pa_dynarray *array);
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unsigned pa_dynarray_size(pa_dynarray *array);
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/* Returns -PA_ERR_NOENTITY if i is out of bounds, and zero otherwise.
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* Here i is the location index in the array like 0, ..., array->entries */
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int pa_dynarray_insert_by_index(pa_dynarray *array, void *p, unsigned i);
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#define PA_DYNARRAY_FOREACH(elem, array, idx) \
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for ((idx) = 0; ((elem) = pa_dynarray_get(array, idx)); (idx)++)
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#endif
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