ALSA: hda - Add generic arrays

Added helper functions to handle generic arrays.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 20 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 70e8fa09273d..b9b21766b730 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -520,6 +520,26 @@ enum {
 #define HDA_MAX_CODEC_ADDRESS   0x0f
 
 /*
+ * generic arrays
+ */
+struct snd_array {
+        unsigned int used;
+        unsigned int alloced;
+        unsigned int elem_size;
+        unsigned int alloc_align;
+        void *list;
+};
+
+void *snd_array_new(struct snd_array *array);
+void snd_array_free(struct snd_array *array);
+static inline void snd_array_init(struct snd_array *array, unsigned int size,
+                                  unsigned int align)
+{
+        array->elem_size = size;
+        array->alloc_align = align;
+}
+
+/*
  * Structures
  */