diff options
Diffstat (limited to 'sound/pci/hda')
-rw-r--r-- | sound/pci/hda/hda_codec.c | 89 | ||||
-rw-r--r-- | sound/pci/hda/hda_codec.h | 24 |
2 files changed, 68 insertions, 45 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index fc934baaae6..46f8ab1df87 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]; } diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 1370e346bf3..1a69743160c 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -480,12 +480,24 @@ struct hda_codec_ops { }; /* record for amp information cache */ -struct hda_amp_info { +struct hda_cache_head { u32 key; /* hash key */ + u16 val; /* assigned value */ + u16 next; /* next link; -1 = terminal */ +}; + +struct hda_amp_info { + struct hda_cache_head head; u32 amp_caps; /* amp capabilities */ u16 vol[2]; /* current volume & mute */ - u16 status; /* update flag */ - u16 next; /* next link */ +}; + +struct hda_cache_rec { + u16 hash[64]; /* hash table for index */ + unsigned int num_entries; /* number of assigned entries */ + unsigned int size; /* allocated size */ + unsigned int record_size; /* record size (including header) */ + void *buffer; /* hash table entries */ }; /* PCM callbacks */ @@ -557,11 +569,7 @@ struct hda_codec { hda_nid_t start_nid; u32 *wcaps; - /* hash for amp access */ - u16 amp_hash[32]; - int num_amp_entries; - int amp_info_size; - struct hda_amp_info *amp_info; + struct hda_cache_rec amp_cache; /* cache for amp access */ struct mutex spdif_mutex; unsigned int spdif_status; /* IEC958 status bits */ |