diff options
| -rw-r--r-- | include/sound/hdaudio.h | 33 | ||||
| -rw-r--r-- | sound/hda/Makefile | 3 | ||||
| -rw-r--r-- | sound/hda/array.c | 49 | ||||
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 46 | ||||
| -rw-r--r-- | sound/pci/hda/hda_codec.h | 30 |
5 files changed, 84 insertions, 77 deletions
diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h index 675614dc2b88..3abdd3f16528 100644 --- a/include/sound/hdaudio.h +++ b/include/sound/hdaudio.h @@ -22,6 +22,17 @@ struct hdac_widget_tree; extern struct bus_type snd_hda_bus_type; /* + * generic arrays + */ +struct snd_array { + unsigned int used; + unsigned int alloced; + unsigned int elem_size; + unsigned int alloc_align; + void *list; +}; + +/* * HD-audio codec base device */ struct hdac_device { @@ -178,4 +189,26 @@ static inline void snd_hdac_codec_link_down(struct hdac_device *codec) clear_bit(codec->addr, &codec->bus->codec_powered); } +/* + * generic array helpers + */ +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; +} + +static inline void *snd_array_elem(struct snd_array *array, unsigned int idx) +{ + return array->list + idx * array->elem_size; +} + +static inline unsigned int snd_array_index(struct snd_array *array, void *ptr) +{ + return (unsigned long)(ptr - array->list) / array->elem_size; +} + #endif /* __SOUND_HDAUDIO_H */ diff --git a/sound/hda/Makefile b/sound/hda/Makefile index eec5da03b41f..e508ba1102cb 100644 --- a/sound/hda/Makefile +++ b/sound/hda/Makefile @@ -1,4 +1,5 @@ -snd-hda-core-objs := hda_bus_type.o hdac_bus.o hdac_device.o hdac_sysfs.o +snd-hda-core-objs := hda_bus_type.o hdac_bus.o hdac_device.o hdac_sysfs.o \ + array.o snd-hda-core-objs += trace.o CFLAGS_trace.o := -I$(src) diff --git a/sound/hda/array.c b/sound/hda/array.c new file mode 100644 index 000000000000..516795baa7db --- /dev/null +++ b/sound/hda/array.c @@ -0,0 +1,49 @@ +/* + * generic arrays + */ + +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/hdaudio.h> + +/** + * snd_array_new - get a new element from the given array + * @array: the array object + * + * Get a new element from the given array. If it exceeds the + * pre-allocated array size, re-allocate the array. + * + * Returns NULL if allocation failed. + */ +void *snd_array_new(struct snd_array *array) +{ + if (snd_BUG_ON(!array->elem_size)) + return NULL; + if (array->used >= array->alloced) { + int num = array->alloced + array->alloc_align; + int size = (num + 1) * array->elem_size; + void *nlist; + if (snd_BUG_ON(num >= 4096)) + return NULL; + nlist = krealloc(array->list, size, GFP_KERNEL | __GFP_ZERO); + if (!nlist) + return NULL; + array->list = nlist; + array->alloced = num; + } + return snd_array_elem(array, array->used++); +} +EXPORT_SYMBOL_GPL(snd_array_new); + +/** + * snd_array_free - free the given array elements + * @array: the array object + */ +void snd_array_free(struct snd_array *array) +{ + kfree(array->list); + array->used = 0; + array->alloced = 0; + array->list = NULL; +} +EXPORT_SYMBOL_GPL(snd_array_free); diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 145cae7903b6..10e257ff9084 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -5012,52 +5012,6 @@ void snd_hda_bus_reset(struct hda_bus *bus) } EXPORT_SYMBOL_GPL(snd_hda_bus_reset); -/* - * generic arrays - */ - -/** - * snd_array_new - get a new element from the given array - * @array: the array object - * - * Get a new element from the given array. If it exceeds the - * pre-allocated array size, re-allocate the array. - * - * Returns NULL if allocation failed. - */ -void *snd_array_new(struct snd_array *array) -{ - if (snd_BUG_ON(!array->elem_size)) - return NULL; - if (array->used >= array->alloced) { - int num = array->alloced + array->alloc_align; - int size = (num + 1) * array->elem_size; - void *nlist; - if (snd_BUG_ON(num >= 4096)) - return NULL; - nlist = krealloc(array->list, size, GFP_KERNEL | __GFP_ZERO); - if (!nlist) - return NULL; - array->list = nlist; - array->alloced = num; - } - return snd_array_elem(array, array->used++); -} -EXPORT_SYMBOL_GPL(snd_array_new); - -/** - * snd_array_free - free the given array elements - * @array: the array object - */ -void snd_array_free(struct snd_array *array) -{ - kfree(array->list); - array->used = 0; - array->alloced = 0; - array->list = NULL; -} -EXPORT_SYMBOL_GPL(snd_array_free); - /** * snd_print_pcm_bits - Print the supported PCM fmt bits to the string buffer * @pcm: PCM caps bits diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 76776164623d..3068163b3db2 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -30,36 +30,6 @@ #include <sound/hda_verbs.h> /* - * 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; -} - -static inline void *snd_array_elem(struct snd_array *array, unsigned int idx) -{ - return array->list + idx * array->elem_size; -} - -static inline unsigned int snd_array_index(struct snd_array *array, void *ptr) -{ - return (unsigned long)(ptr - array->list) / array->elem_size; -} - -/* * Structures */ |