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path: root/sound/pci/hda/hda_codec.c
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Diffstat (limited to 'sound/pci/hda/hda_codec.c')
-rw-r--r--sound/pci/hda/hda_codec.c89
1 files changed, 52 insertions, 37 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index fc934baaae65..46f8ab1df874 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -494,6 +494,10 @@ static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
}
+static void init_hda_cache(struct hda_cache_rec *cache,
+ unsigned int record_size);
+static inline void free_hda_cache(struct hda_cache_rec *cache);
+
/*
* codec destructor
*/
@@ -505,13 +509,11 @@ static void snd_hda_codec_free(struct hda_codec *codec)
codec->bus->caddr_tbl[codec->addr] = NULL;
if (codec->patch_ops.free)
codec->patch_ops.free(codec);
- kfree(codec->amp_info);
+ free_hda_cache(&codec->amp_cache);
kfree(codec->wcaps);
kfree(codec);
}
-static void init_amp_hash(struct hda_codec *codec);
-
/**
* snd_hda_codec_new - create a HDA codec
* @bus: the bus to assign
@@ -545,7 +547,7 @@ int __devinit snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
codec->bus = bus;
codec->addr = codec_addr;
mutex_init(&codec->spdif_mutex);
- init_amp_hash(codec);
+ init_hda_cache(&codec->amp_cache, sizeof(struct hda_amp_info));
list_add_tail(&codec->list, &bus->codec_list);
bus->caddr_tbl[codec_addr] = codec;
@@ -664,59 +666,72 @@ void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
#define INFO_AMP_VOL(ch) (1 << (1 + (ch)))
/* initialize the hash table */
-static void __devinit init_amp_hash(struct hda_codec *codec)
+static void __devinit init_hda_cache(struct hda_cache_rec *cache,
+ unsigned int record_size)
+{
+ memset(cache, 0, sizeof(*cache));
+ memset(cache->hash, 0xff, sizeof(cache->hash));
+ cache->record_size = record_size;
+}
+
+static inline void free_hda_cache(struct hda_cache_rec *cache)
{
- memset(codec->amp_hash, 0xff, sizeof(codec->amp_hash));
- codec->num_amp_entries = 0;
- codec->amp_info_size = 0;
- codec->amp_info = NULL;
+ kfree(cache->buffer);
}
/* query the hash. allocate an entry if not found. */
-static struct hda_amp_info *get_alloc_amp_hash(struct hda_codec *codec, u32 key)
+static struct hda_cache_head *get_alloc_hash(struct hda_cache_rec *cache,
+ u32 key)
{
- u16 idx = key % (u16)ARRAY_SIZE(codec->amp_hash);
- u16 cur = codec->amp_hash[idx];
- struct hda_amp_info *info;
+ u16 idx = key % (u16)ARRAY_SIZE(cache->hash);
+ u16 cur = cache->hash[idx];
+ struct hda_cache_head *info;
while (cur != 0xffff) {
- info = &codec->amp_info[cur];
+ info = (struct hda_cache_head *)(cache->buffer +
+ cur * cache->record_size);
if (info->key == key)
return info;
cur = info->next;
}
/* add a new hash entry */
- if (codec->num_amp_entries >= codec->amp_info_size) {
+ if (cache->num_entries >= cache->size) {
/* reallocate the array */
- int new_size = codec->amp_info_size + 64;
- struct hda_amp_info *new_info;
- new_info = kcalloc(new_size, sizeof(struct hda_amp_info),
- GFP_KERNEL);
- if (!new_info) {
+ unsigned int new_size = cache->size + 64;
+ void *new_buffer;
+ new_buffer = kcalloc(new_size, cache->record_size, GFP_KERNEL);
+ if (!new_buffer) {
snd_printk(KERN_ERR "hda_codec: "
"can't malloc amp_info\n");
return NULL;
}
- if (codec->amp_info) {
- memcpy(new_info, codec->amp_info,
- codec->amp_info_size *
- sizeof(struct hda_amp_info));
- kfree(codec->amp_info);
+ if (cache->buffer) {
+ memcpy(new_buffer, cache->buffer,
+ cache->size * cache->record_size);
+ kfree(cache->buffer);
}
- codec->amp_info_size = new_size;
- codec->amp_info = new_info;
+ cache->size = new_size;
+ cache->buffer = new_buffer;
}
- cur = codec->num_amp_entries++;
- info = &codec->amp_info[cur];
+ cur = cache->num_entries++;
+ info = (struct hda_cache_head *)(cache->buffer +
+ cur * cache->record_size);
info->key = key;
- info->status = 0; /* not initialized yet */
- info->next = codec->amp_hash[idx];
- codec->amp_hash[idx] = cur;
+ info->val = 0;
+ info->next = cache->hash[idx];
+ cache->hash[idx] = cur;
return info;
}
+/* query and allocate an amp hash entry */
+static inline struct hda_amp_info *
+get_alloc_amp_hash(struct hda_codec *codec, u32 key)
+{
+ return (struct hda_amp_info *)get_alloc_hash(&codec->amp_cache, key);
+}
+
/*
* query AMP capabilities for the given widget and direction
*/
@@ -727,7 +742,7 @@ static u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
if (!info)
return 0;
- if (!(info->status & INFO_AMP_CAPS)) {
+ if (!(info->head.val & INFO_AMP_CAPS)) {
if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
nid = codec->afg;
info->amp_caps = snd_hda_param_read(codec, nid,
@@ -735,7 +750,7 @@ static u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
AC_PAR_AMP_OUT_CAP :
AC_PAR_AMP_IN_CAP);
if (info->amp_caps)
- info->status |= INFO_AMP_CAPS;
+ info->head.val |= INFO_AMP_CAPS;
}
return info->amp_caps;
}
@@ -749,7 +764,7 @@ int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
if (!info)
return -EINVAL;
info->amp_caps = caps;
- info->status |= INFO_AMP_CAPS;
+ info->head.val |= INFO_AMP_CAPS;
return 0;
}
@@ -763,7 +778,7 @@ static unsigned int get_vol_mute(struct hda_codec *codec,
{
u32 val, parm;
- if (info->status & INFO_AMP_VOL(ch))
+ if (info->head.val & INFO_AMP_VOL(ch))
return info->vol[ch];
parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
@@ -772,7 +787,7 @@ static unsigned int get_vol_mute(struct hda_codec *codec,
val = snd_hda_codec_read(codec, nid, 0,
AC_VERB_GET_AMP_GAIN_MUTE, parm);
info->vol[ch] = val & 0xff;
- info->status |= INFO_AMP_VOL(ch);
+ info->head.val |= INFO_AMP_VOL(ch);
return info->vol[ch];
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-19 04:40:56 +0000