diff --git a/sound/pci/hda/Kconfig b/sound/pci/hda/Kconfig index 0e53634dbbd8..f2032dd7e35e 100644 --- a/sound/pci/hda/Kconfig +++ b/sound/pci/hda/Kconfig @@ -41,7 +41,6 @@ config SND_HDA_HWDEP config SND_HDA_RECONFIG bool "Allow dynamic codec reconfiguration" - depends on SND_HDA_HWDEP help Say Y here to enable the HD-audio codec re-configuration feature. This adds the sysfs interfaces to allow user to clear the whole @@ -76,7 +75,6 @@ config SND_HDA_INPUT_JACK config SND_HDA_PATCH_LOADER bool "Support initialization patch loading for HD-audio" select FW_LOADER - select SND_HDA_HWDEP select SND_HDA_RECONFIG help Say Y here to allow the HD-audio driver to load a pseudo @@ -84,8 +82,6 @@ config SND_HDA_PATCH_LOADER start up. The "patch" file can be specified via patch module option, such as patch=hda-init. - This option turns on hwdep and reconfig features automatically. - config SND_HDA_CODEC_REALTEK tristate "Build Realtek HD-audio codec support" select SND_HDA_GENERIC diff --git a/sound/pci/hda/Makefile b/sound/pci/hda/Makefile index 1fcb118e480a..083b338e0783 100644 --- a/sound/pci/hda/Makefile +++ b/sound/pci/hda/Makefile @@ -2,7 +2,7 @@ snd-hda-intel-objs := hda_intel.o # for haswell power well snd-hda-intel-$(CONFIG_SND_HDA_I915) += hda_i915.o -snd-hda-codec-y := hda_codec.o hda_jack.o hda_auto_parser.o +snd-hda-codec-y := hda_codec.o hda_jack.o hda_auto_parser.o hda_sysfs.o snd-hda-codec-$(CONFIG_PROC_FS) += hda_proc.o snd-hda-codec-$(CONFIG_SND_HDA_HWDEP) += hda_hwdep.o snd-hda-codec-$(CONFIG_SND_HDA_INPUT_BEEP) += hda_beep.o diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 98baf5674a63..2cba4dc6349a 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -1170,7 +1170,7 @@ unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid) { struct hda_pincfg *pin; -#ifdef CONFIG_SND_HDA_HWDEP +#ifdef CONFIG_SND_HDA_RECONFIG { unsigned int cfg = 0; mutex_lock(&codec->user_mutex); @@ -1285,7 +1285,7 @@ static void free_hda_cache(struct hda_cache_rec *cache); static void free_init_pincfgs(struct hda_codec *codec) { snd_array_free(&codec->driver_pins); -#ifdef CONFIG_SND_HDA_HWDEP +#ifdef CONFIG_SND_HDA_RECONFIG snd_array_free(&codec->user_pins); #endif snd_array_free(&codec->init_pins); @@ -1359,6 +1359,7 @@ static void snd_hda_codec_free(struct hda_codec *codec) if (codec->patch_ops.free) codec->patch_ops.free(codec); hda_call_pm_notify(codec, false); /* cancel leftover refcounts */ + snd_hda_sysfs_clear(codec); unload_parser(codec); module_put(codec->owner); free_hda_cache(&codec->amp_cache); @@ -1447,8 +1448,10 @@ int snd_hda_codec_new(struct hda_bus *bus, codec->dev.parent = &bus->card->card_dev; codec->dev.class = sound_class; codec->dev.release = snd_hda_codec_dev_release; + codec->dev.groups = snd_hda_dev_attr_groups; dev_set_name(&codec->dev, "hdaudioC%dD%d", bus->card->number, codec_addr); + dev_set_drvdata(&codec->dev, codec); /* for sysfs */ codec->bus = bus; codec->addr = codec_addr; @@ -1480,6 +1483,8 @@ int snd_hda_codec_new(struct hda_bus *bus, hda_keep_power_on(codec); #endif + snd_hda_sysfs_init(codec); + if (codec->bus->modelname) { codec->modelname = kstrdup(codec->bus->modelname, GFP_KERNEL); if (!codec->modelname) { @@ -4038,7 +4043,7 @@ static void sync_power_up_states(struct hda_codec *codec) } } -#ifdef CONFIG_SND_HDA_HWDEP +#ifdef CONFIG_SND_HDA_RECONFIG /* execute additional init verbs */ static void hda_exec_init_verbs(struct hda_codec *codec) { diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 4d9dd2b70f4a..ad5871f3a669 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -333,14 +333,17 @@ struct hda_codec { struct snd_array driver_pins; /* pin configs set by codec parser */ struct snd_array cvt_setups; /* audio convert setups */ -#ifdef CONFIG_SND_HDA_HWDEP +#ifdef CONFIG_SND_HDA_RECONFIG struct mutex user_mutex; - struct snd_hwdep *hwdep; /* assigned hwdep device */ struct snd_array init_verbs; /* additional init verbs */ struct snd_array hints; /* additional hints */ struct snd_array user_pins; /* default pin configs to override */ #endif +#ifdef CONFIG_SND_HDA_HWDEP + struct snd_hwdep *hwdep; /* assigned hwdep device */ +#endif + /* misc flags */ unsigned int spdif_status_reset :1; /* needs to toggle SPDIF for each * status change diff --git a/sound/pci/hda/hda_hwdep.c b/sound/pci/hda/hda_hwdep.c index 896d116ca951..014a7849e8fd 100644 --- a/sound/pci/hda/hda_hwdep.c +++ b/sound/pci/hda/hda_hwdep.c @@ -21,22 +21,12 @@ #include #include #include -#include -#include -#include -#include #include #include "hda_codec.h" #include "hda_local.h" #include #include -/* hint string pair */ -struct hda_hint { - const char *key; - const char *val; /* contained in the same alloc as key */ -}; - /* * write/read an out-of-bound verb */ @@ -104,28 +94,6 @@ static int hda_hwdep_open(struct snd_hwdep *hw, struct file *file) return 0; } -static void clear_hwdep_elements(struct hda_codec *codec) -{ - int i; - - /* clear init verbs */ - snd_array_free(&codec->init_verbs); - /* clear hints */ - for (i = 0; i < codec->hints.used; i++) { - struct hda_hint *hint = snd_array_elem(&codec->hints, i); - kfree(hint->key); /* we don't need to free hint->val */ - } - snd_array_free(&codec->hints); - snd_array_free(&codec->user_pins); -} - -static void hwdep_free(struct snd_hwdep *hwdep) -{ - clear_hwdep_elements(hwdep->private_data); -} - -static const struct attribute_group *snd_hda_dev_attr_groups[]; - int snd_hda_create_hwdep(struct hda_codec *codec) { char hwname[16]; @@ -140,7 +108,6 @@ int snd_hda_create_hwdep(struct hda_codec *codec) sprintf(hwdep->name, "HDA Codec %d", codec->addr); hwdep->iface = SNDRV_HWDEP_IFACE_HDA; hwdep->private_data = codec; - hwdep->private_free = hwdep_free; hwdep->exclusive = 1; hwdep->groups = snd_hda_dev_attr_groups; @@ -150,729 +117,8 @@ int snd_hda_create_hwdep(struct hda_codec *codec) hwdep->ops.ioctl_compat = hda_hwdep_ioctl_compat; #endif - mutex_init(&codec->user_mutex); - snd_array_init(&codec->init_verbs, sizeof(struct hda_verb), 32); - snd_array_init(&codec->hints, sizeof(struct hda_hint), 32); - snd_array_init(&codec->user_pins, sizeof(struct hda_pincfg), 16); - /* link to codec */ hwdep->dev = &codec->dev; return 0; } - -#ifdef CONFIG_PM -static ssize_t power_on_acct_show(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct hda_codec *codec = dev_get_drvdata(dev); - snd_hda_update_power_acct(codec); - return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_on_acct)); -} - -static ssize_t power_off_acct_show(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct hda_codec *codec = dev_get_drvdata(dev); - snd_hda_update_power_acct(codec); - return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_off_acct)); -} - -static DEVICE_ATTR_RO(power_on_acct); -static DEVICE_ATTR_RO(power_off_acct); -#endif /* CONFIG_PM */ - -#ifdef CONFIG_SND_HDA_RECONFIG - -/* - * sysfs interface - */ - -static int clear_codec(struct hda_codec *codec) -{ - int err; - - err = snd_hda_codec_reset(codec); - if (err < 0) { - snd_printk(KERN_ERR "The codec is being used, can't free.\n"); - return err; - } - clear_hwdep_elements(codec); - return 0; -} - -static int reconfig_codec(struct hda_codec *codec) -{ - int err; - - snd_hda_power_up(codec); - snd_printk(KERN_INFO "hda-codec: reconfiguring\n"); - err = snd_hda_codec_reset(codec); - if (err < 0) { - snd_printk(KERN_ERR - "The codec is being used, can't reconfigure.\n"); - goto error; - } - err = snd_hda_codec_configure(codec); - if (err < 0) - goto error; - /* rebuild PCMs */ - err = snd_hda_codec_build_pcms(codec); - if (err < 0) - goto error; - /* rebuild mixers */ - err = snd_hda_codec_build_controls(codec); - if (err < 0) - goto error; - err = snd_card_register(codec->bus->card); - error: - snd_hda_power_down(codec); - return err; -} - -/* - * allocate a string at most len chars, and remove the trailing EOL - */ -static char *kstrndup_noeol(const char *src, size_t len) -{ - char *s = kstrndup(src, len, GFP_KERNEL); - char *p; - if (!s) - return NULL; - p = strchr(s, '\n'); - if (p) - *p = 0; - return s; -} - -#define CODEC_INFO_SHOW(type) \ -static ssize_t type##_show(struct device *dev, \ - struct device_attribute *attr, \ - char *buf) \ -{ \ - struct hda_codec *codec = dev_get_drvdata(dev); \ - return sprintf(buf, "0x%x\n", codec->type); \ -} - -#define CODEC_INFO_STR_SHOW(type) \ -static ssize_t type##_show(struct device *dev, \ - struct device_attribute *attr, \ - char *buf) \ -{ \ - struct hda_codec *codec = dev_get_drvdata(dev); \ - return sprintf(buf, "%s\n", \ - codec->type ? codec->type : ""); \ -} - -CODEC_INFO_SHOW(vendor_id); -CODEC_INFO_SHOW(subsystem_id); -CODEC_INFO_SHOW(revision_id); -CODEC_INFO_SHOW(afg); -CODEC_INFO_SHOW(mfg); -CODEC_INFO_STR_SHOW(vendor_name); -CODEC_INFO_STR_SHOW(chip_name); -CODEC_INFO_STR_SHOW(modelname); - -#define CODEC_INFO_STORE(type) \ -static ssize_t type##_store(struct device *dev, \ - struct device_attribute *attr, \ - const char *buf, size_t count) \ -{ \ - struct hda_codec *codec = dev_get_drvdata(dev); \ - unsigned long val; \ - int err = kstrtoul(buf, 0, &val); \ - if (err < 0) \ - return err; \ - codec->type = val; \ - return count; \ -} - -#define CODEC_INFO_STR_STORE(type) \ -static ssize_t type##_store(struct device *dev, \ - struct device_attribute *attr, \ - const char *buf, size_t count) \ -{ \ - struct hda_codec *codec = dev_get_drvdata(dev); \ - char *s = kstrndup_noeol(buf, 64); \ - if (!s) \ - return -ENOMEM; \ - kfree(codec->type); \ - codec->type = s; \ - return count; \ -} - -CODEC_INFO_STORE(vendor_id); -CODEC_INFO_STORE(subsystem_id); -CODEC_INFO_STORE(revision_id); -CODEC_INFO_STR_STORE(vendor_name); -CODEC_INFO_STR_STORE(chip_name); -CODEC_INFO_STR_STORE(modelname); - -#define CODEC_ACTION_STORE(type) \ -static ssize_t type##_store(struct device *dev, \ - struct device_attribute *attr, \ - const char *buf, size_t count) \ -{ \ - struct hda_codec *codec = dev_get_drvdata(dev); \ - int err = 0; \ - if (*buf) \ - err = type##_codec(codec); \ - return err < 0 ? err : count; \ -} - -CODEC_ACTION_STORE(reconfig); -CODEC_ACTION_STORE(clear); - -static ssize_t init_verbs_show(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct hda_codec *codec = dev_get_drvdata(dev); - int i, len = 0; - mutex_lock(&codec->user_mutex); - for (i = 0; i < codec->init_verbs.used; i++) { - struct hda_verb *v = snd_array_elem(&codec->init_verbs, i); - len += snprintf(buf + len, PAGE_SIZE - len, - "0x%02x 0x%03x 0x%04x\n", - v->nid, v->verb, v->param); - } - mutex_unlock(&codec->user_mutex); - return len; -} - -static int parse_init_verbs(struct hda_codec *codec, const char *buf) -{ - struct hda_verb *v; - int nid, verb, param; - - if (sscanf(buf, "%i %i %i", &nid, &verb, ¶m) != 3) - return -EINVAL; - if (!nid || !verb) - return -EINVAL; - mutex_lock(&codec->user_mutex); - v = snd_array_new(&codec->init_verbs); - if (!v) { - mutex_unlock(&codec->user_mutex); - return -ENOMEM; - } - v->nid = nid; - v->verb = verb; - v->param = param; - mutex_unlock(&codec->user_mutex); - return 0; -} - -static ssize_t init_verbs_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct hda_codec *codec = dev_get_drvdata(dev); - int err = parse_init_verbs(codec, buf); - if (err < 0) - return err; - return count; -} - -static ssize_t hints_show(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct hda_codec *codec = dev_get_drvdata(dev); - int i, len = 0; - mutex_lock(&codec->user_mutex); - for (i = 0; i < codec->hints.used; i++) { - struct hda_hint *hint = snd_array_elem(&codec->hints, i); - len += snprintf(buf + len, PAGE_SIZE - len, - "%s = %s\n", hint->key, hint->val); - } - mutex_unlock(&codec->user_mutex); - return len; -} - -static struct hda_hint *get_hint(struct hda_codec *codec, const char *key) -{ - int i; - - for (i = 0; i < codec->hints.used; i++) { - struct hda_hint *hint = snd_array_elem(&codec->hints, i); - if (!strcmp(hint->key, key)) - return hint; - } - return NULL; -} - -static void remove_trail_spaces(char *str) -{ - char *p; - if (!*str) - return; - p = str + strlen(str) - 1; - for (; isspace(*p); p--) { - *p = 0; - if (p == str) - return; - } -} - -#define MAX_HINTS 1024 - -static int parse_hints(struct hda_codec *codec, const char *buf) -{ - char *key, *val; - struct hda_hint *hint; - int err = 0; - - buf = skip_spaces(buf); - if (!*buf || *buf == '#' || *buf == '\n') - return 0; - if (*buf == '=') - return -EINVAL; - key = kstrndup_noeol(buf, 1024); - if (!key) - return -ENOMEM; - /* extract key and val */ - val = strchr(key, '='); - if (!val) { - kfree(key); - return -EINVAL; - } - *val++ = 0; - val = skip_spaces(val); - remove_trail_spaces(key); - remove_trail_spaces(val); - mutex_lock(&codec->user_mutex); - hint = get_hint(codec, key); - if (hint) { - /* replace */ - kfree(hint->key); - hint->key = key; - hint->val = val; - goto unlock; - } - /* allocate a new hint entry */ - if (codec->hints.used >= MAX_HINTS) - hint = NULL; - else - hint = snd_array_new(&codec->hints); - if (hint) { - hint->key = key; - hint->val = val; - } else { - err = -ENOMEM; - } - unlock: - mutex_unlock(&codec->user_mutex); - if (err) - kfree(key); - return err; -} - -static ssize_t hints_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct hda_codec *codec = dev_get_drvdata(dev); - int err = parse_hints(codec, buf); - if (err < 0) - return err; - return count; -} - -static ssize_t pin_configs_show(struct hda_codec *codec, - struct snd_array *list, - char *buf) -{ - int i, len = 0; - mutex_lock(&codec->user_mutex); - for (i = 0; i < list->used; i++) { - struct hda_pincfg *pin = snd_array_elem(list, i); - len += sprintf(buf + len, "0x%02x 0x%08x\n", - pin->nid, pin->cfg); - } - mutex_unlock(&codec->user_mutex); - return len; -} - -static ssize_t init_pin_configs_show(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct hda_codec *codec = dev_get_drvdata(dev); - return pin_configs_show(codec, &codec->init_pins, buf); -} - -static ssize_t user_pin_configs_show(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct hda_codec *codec = dev_get_drvdata(dev); - return pin_configs_show(codec, &codec->user_pins, buf); -} - -static ssize_t driver_pin_configs_show(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct hda_codec *codec = dev_get_drvdata(dev); - return pin_configs_show(codec, &codec->driver_pins, buf); -} - -#define MAX_PIN_CONFIGS 32 - -static int parse_user_pin_configs(struct hda_codec *codec, const char *buf) -{ - int nid, cfg, err; - - if (sscanf(buf, "%i %i", &nid, &cfg) != 2) - return -EINVAL; - if (!nid) - return -EINVAL; - mutex_lock(&codec->user_mutex); - err = snd_hda_add_pincfg(codec, &codec->user_pins, nid, cfg); - mutex_unlock(&codec->user_mutex); - return err; -} - -static ssize_t user_pin_configs_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct hda_codec *codec = dev_get_drvdata(dev); - int err = parse_user_pin_configs(codec, buf); - if (err < 0) - return err; - return count; -} - -static DEVICE_ATTR_RW(vendor_id); -static DEVICE_ATTR_RW(subsystem_id); -static DEVICE_ATTR_RW(revision_id); -static DEVICE_ATTR_RO(afg); -static DEVICE_ATTR_RO(mfg); -static DEVICE_ATTR_RW(vendor_name); -static DEVICE_ATTR_RW(chip_name); -static DEVICE_ATTR_RW(modelname); -static DEVICE_ATTR_RW(init_verbs); -static DEVICE_ATTR_RW(hints); -static DEVICE_ATTR_RO(init_pin_configs); -static DEVICE_ATTR_RW(user_pin_configs); -static DEVICE_ATTR_RO(driver_pin_configs); -static DEVICE_ATTR_WO(reconfig); -static DEVICE_ATTR_WO(clear); - -/* - * Look for hint string - */ -const char *snd_hda_get_hint(struct hda_codec *codec, const char *key) -{ - struct hda_hint *hint = get_hint(codec, key); - return hint ? hint->val : NULL; -} -EXPORT_SYMBOL_GPL(snd_hda_get_hint); - -int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key) -{ - const char *p; - int ret; - - mutex_lock(&codec->user_mutex); - p = snd_hda_get_hint(codec, key); - if (!p || !*p) - ret = -ENOENT; - else { - switch (toupper(*p)) { - case 'T': /* true */ - case 'Y': /* yes */ - case '1': - ret = 1; - break; - default: - ret = 0; - break; - } - } - mutex_unlock(&codec->user_mutex); - return ret; -} -EXPORT_SYMBOL_GPL(snd_hda_get_bool_hint); - -int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp) -{ - const char *p; - unsigned long val; - int ret; - - mutex_lock(&codec->user_mutex); - p = snd_hda_get_hint(codec, key); - if (!p) - ret = -ENOENT; - else if (kstrtoul(p, 0, &val)) - ret = -EINVAL; - else { - *valp = val; - ret = 0; - } - mutex_unlock(&codec->user_mutex); - return ret; -} -EXPORT_SYMBOL_GPL(snd_hda_get_int_hint); -#endif /* CONFIG_SND_HDA_RECONFIG */ - -#ifdef CONFIG_SND_HDA_PATCH_LOADER - -/* parser mode */ -enum { - LINE_MODE_NONE, - LINE_MODE_CODEC, - LINE_MODE_MODEL, - LINE_MODE_PINCFG, - LINE_MODE_VERB, - LINE_MODE_HINT, - LINE_MODE_VENDOR_ID, - LINE_MODE_SUBSYSTEM_ID, - LINE_MODE_REVISION_ID, - LINE_MODE_CHIP_NAME, - NUM_LINE_MODES, -}; - -static inline int strmatch(const char *a, const char *b) -{ - return strnicmp(a, b, strlen(b)) == 0; -} - -/* parse the contents after the line "[codec]" - * accept only the line with three numbers, and assign the current codec - */ -static void parse_codec_mode(char *buf, struct hda_bus *bus, - struct hda_codec **codecp) -{ - int vendorid, subid, caddr; - struct hda_codec *codec; - - *codecp = NULL; - if (sscanf(buf, "%i %i %i", &vendorid, &subid, &caddr) == 3) { - list_for_each_entry(codec, &bus->codec_list, list) { - if ((vendorid <= 0 || codec->vendor_id == vendorid) && - (subid <= 0 || codec->subsystem_id == subid) && - codec->addr == caddr) { - *codecp = codec; - break; - } - } - } -} - -/* parse the contents after the other command tags, [pincfg], [verb], - * [vendor_id], [subsystem_id], [revision_id], [chip_name], [hint] and [model] - * just pass to the sysfs helper (only when any codec was specified) - */ -static void parse_pincfg_mode(char *buf, struct hda_bus *bus, - struct hda_codec **codecp) -{ - parse_user_pin_configs(*codecp, buf); -} - -static void parse_verb_mode(char *buf, struct hda_bus *bus, - struct hda_codec **codecp) -{ - parse_init_verbs(*codecp, buf); -} - -static void parse_hint_mode(char *buf, struct hda_bus *bus, - struct hda_codec **codecp) -{ - parse_hints(*codecp, buf); -} - -static void parse_model_mode(char *buf, struct hda_bus *bus, - struct hda_codec **codecp) -{ - kfree((*codecp)->modelname); - (*codecp)->modelname = kstrdup(buf, GFP_KERNEL); -} - -static void parse_chip_name_mode(char *buf, struct hda_bus *bus, - struct hda_codec **codecp) -{ - kfree((*codecp)->chip_name); - (*codecp)->chip_name = kstrdup(buf, GFP_KERNEL); -} - -#define DEFINE_PARSE_ID_MODE(name) \ -static void parse_##name##_mode(char *buf, struct hda_bus *bus, \ - struct hda_codec **codecp) \ -{ \ - unsigned long val; \ - if (!kstrtoul(buf, 0, &val)) \ - (*codecp)->name = val; \ -} - -DEFINE_PARSE_ID_MODE(vendor_id); -DEFINE_PARSE_ID_MODE(subsystem_id); -DEFINE_PARSE_ID_MODE(revision_id); - - -struct hda_patch_item { - const char *tag; - const char *alias; - void (*parser)(char *buf, struct hda_bus *bus, struct hda_codec **retc); -}; - -static struct hda_patch_item patch_items[NUM_LINE_MODES] = { - [LINE_MODE_CODEC] = { - .tag = "[codec]", - .parser = parse_codec_mode, - }, - [LINE_MODE_MODEL] = { - .tag = "[model]", - .parser = parse_model_mode, - }, - [LINE_MODE_VERB] = { - .tag = "[verb]", - .alias = "[init_verbs]", - .parser = parse_verb_mode, - }, - [LINE_MODE_PINCFG] = { - .tag = "[pincfg]", - .alias = "[user_pin_configs]", - .parser = parse_pincfg_mode, - }, - [LINE_MODE_HINT] = { - .tag = "[hint]", - .alias = "[hints]", - .parser = parse_hint_mode - }, - [LINE_MODE_VENDOR_ID] = { - .tag = "[vendor_id]", - .parser = parse_vendor_id_mode, - }, - [LINE_MODE_SUBSYSTEM_ID] = { - .tag = "[subsystem_id]", - .parser = parse_subsystem_id_mode, - }, - [LINE_MODE_REVISION_ID] = { - .tag = "[revision_id]", - .parser = parse_revision_id_mode, - }, - [LINE_MODE_CHIP_NAME] = { - .tag = "[chip_name]", - .parser = parse_chip_name_mode, - }, -}; - -/* check the line starting with '[' -- change the parser mode accodingly */ -static int parse_line_mode(char *buf, struct hda_bus *bus) -{ - int i; - for (i = 0; i < ARRAY_SIZE(patch_items); i++) { - if (!patch_items[i].tag) - continue; - if (strmatch(buf, patch_items[i].tag)) - return i; - if (patch_items[i].alias && strmatch(buf, patch_items[i].alias)) - return i; - } - return LINE_MODE_NONE; -} - -/* copy one line from the buffer in fw, and update the fields in fw - * return zero if it reaches to the end of the buffer, or non-zero - * if successfully copied a line - * - * the spaces at the beginning and the end of the line are stripped - */ -static int get_line_from_fw(char *buf, int size, size_t *fw_size_p, - const void **fw_data_p) -{ - int len; - size_t fw_size = *fw_size_p; - const char *p = *fw_data_p; - - while (isspace(*p) && fw_size) { - p++; - fw_size--; - } - if (!fw_size) - return 0; - - for (len = 0; len < fw_size; len++) { - if (!*p) - break; - if (*p == '\n') { - p++; - len++; - break; - } - if (len < size) - *buf++ = *p++; - } - *buf = 0; - *fw_size_p = fw_size - len; - *fw_data_p = p; - remove_trail_spaces(buf); - return 1; -} - -/* - * load a "patch" firmware file and parse it - */ -int snd_hda_load_patch(struct hda_bus *bus, size_t fw_size, const void *fw_buf) -{ - char buf[128]; - struct hda_codec *codec; - int line_mode; - - line_mode = LINE_MODE_NONE; - codec = NULL; - while (get_line_from_fw(buf, sizeof(buf) - 1, &fw_size, &fw_buf)) { - if (!*buf || *buf == '#' || *buf == '\n') - continue; - if (*buf == '[') - line_mode = parse_line_mode(buf, bus); - else if (patch_items[line_mode].parser && - (codec || line_mode <= LINE_MODE_CODEC)) - patch_items[line_mode].parser(buf, bus, &codec); - } - return 0; -} -EXPORT_SYMBOL_GPL(snd_hda_load_patch); -#endif /* CONFIG_SND_HDA_PATCH_LOADER */ - -/* - * sysfs entries - */ -static struct attribute *hda_dev_attrs[] = { -#ifdef CONFIG_PM - &dev_attr_power_on_acct.attr, - &dev_attr_power_off_acct.attr, -#endif -#ifdef CONFIG_SND_HDA_RECONFIG - &dev_attr_vendor_id.attr, - &dev_attr_subsystem_id.attr, - &dev_attr_revision_id.attr, - &dev_attr_afg.attr, - &dev_attr_mfg.attr, - &dev_attr_vendor_name.attr, - &dev_attr_chip_name.attr, - &dev_attr_modelname.attr, - &dev_attr_init_verbs.attr, - &dev_attr_hints.attr, - &dev_attr_init_pin_configs.attr, - &dev_attr_user_pin_configs.attr, - &dev_attr_driver_pin_configs.attr, - &dev_attr_reconfig.attr, - &dev_attr_clear.attr, -#endif - NULL -}; - -static struct attribute_group hda_dev_attr_group = { - .attrs = hda_dev_attrs, -}; - -static const struct attribute_group *snd_hda_dev_attr_groups[] = { - &hda_dev_attr_group, - NULL -}; diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h index 31545923f6ac..a489243f243b 100644 --- a/sound/pci/hda/hda_local.h +++ b/sound/pci/hda/hda_local.h @@ -597,6 +597,11 @@ int snd_hda_create_hwdep(struct hda_codec *codec); static inline int snd_hda_create_hwdep(struct hda_codec *codec) { return 0; } #endif +void snd_hda_sysfs_init(struct hda_codec *codec); +void snd_hda_sysfs_clear(struct hda_codec *codec); + +extern const struct attribute_group *snd_hda_dev_attr_groups[]; + #ifdef CONFIG_SND_HDA_RECONFIG const char *snd_hda_get_hint(struct hda_codec *codec, const char *key); int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key); diff --git a/sound/pci/hda/hda_sysfs.c b/sound/pci/hda/hda_sysfs.c new file mode 100644 index 000000000000..c92ac267f5af --- /dev/null +++ b/sound/pci/hda/hda_sysfs.c @@ -0,0 +1,769 @@ +/* + * sysfs interface for HD-audio codec + * + * Copyright (c) 2014 Takashi Iwai + * + * split from hda_hwdep.c + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include "hda_codec.h" +#include "hda_local.h" +#include +#include + +/* hint string pair */ +struct hda_hint { + const char *key; + const char *val; /* contained in the same alloc as key */ +}; + +#ifdef CONFIG_PM +static ssize_t power_on_acct_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hda_codec *codec = dev_get_drvdata(dev); + snd_hda_update_power_acct(codec); + return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_on_acct)); +} + +static ssize_t power_off_acct_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hda_codec *codec = dev_get_drvdata(dev); + snd_hda_update_power_acct(codec); + return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_off_acct)); +} + +static DEVICE_ATTR_RO(power_on_acct); +static DEVICE_ATTR_RO(power_off_acct); +#endif /* CONFIG_PM */ + +#ifdef CONFIG_SND_HDA_RECONFIG + +/* + * sysfs interface + */ + +static int clear_codec(struct hda_codec *codec) +{ + int err; + + err = snd_hda_codec_reset(codec); + if (err < 0) { + snd_printk(KERN_ERR "The codec is being used, can't free.\n"); + return err; + } + snd_hda_sysfs_clear(codec); + return 0; +} + +static int reconfig_codec(struct hda_codec *codec) +{ + int err; + + snd_hda_power_up(codec); + snd_printk(KERN_INFO "hda-codec: reconfiguring\n"); + err = snd_hda_codec_reset(codec); + if (err < 0) { + snd_printk(KERN_ERR + "The codec is being used, can't reconfigure.\n"); + goto error; + } + err = snd_hda_codec_configure(codec); + if (err < 0) + goto error; + /* rebuild PCMs */ + err = snd_hda_codec_build_pcms(codec); + if (err < 0) + goto error; + /* rebuild mixers */ + err = snd_hda_codec_build_controls(codec); + if (err < 0) + goto error; + err = snd_card_register(codec->bus->card); + error: + snd_hda_power_down(codec); + return err; +} + +/* + * allocate a string at most len chars, and remove the trailing EOL + */ +static char *kstrndup_noeol(const char *src, size_t len) +{ + char *s = kstrndup(src, len, GFP_KERNEL); + char *p; + if (!s) + return NULL; + p = strchr(s, '\n'); + if (p) + *p = 0; + return s; +} + +#define CODEC_INFO_SHOW(type) \ +static ssize_t type##_show(struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ +{ \ + struct hda_codec *codec = dev_get_drvdata(dev); \ + return sprintf(buf, "0x%x\n", codec->type); \ +} + +#define CODEC_INFO_STR_SHOW(type) \ +static ssize_t type##_show(struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ +{ \ + struct hda_codec *codec = dev_get_drvdata(dev); \ + return sprintf(buf, "%s\n", \ + codec->type ? codec->type : ""); \ +} + +CODEC_INFO_SHOW(vendor_id); +CODEC_INFO_SHOW(subsystem_id); +CODEC_INFO_SHOW(revision_id); +CODEC_INFO_SHOW(afg); +CODEC_INFO_SHOW(mfg); +CODEC_INFO_STR_SHOW(vendor_name); +CODEC_INFO_STR_SHOW(chip_name); +CODEC_INFO_STR_SHOW(modelname); + +#define CODEC_INFO_STORE(type) \ +static ssize_t type##_store(struct device *dev, \ + struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + struct hda_codec *codec = dev_get_drvdata(dev); \ + unsigned long val; \ + int err = kstrtoul(buf, 0, &val); \ + if (err < 0) \ + return err; \ + codec->type = val; \ + return count; \ +} + +#define CODEC_INFO_STR_STORE(type) \ +static ssize_t type##_store(struct device *dev, \ + struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + struct hda_codec *codec = dev_get_drvdata(dev); \ + char *s = kstrndup_noeol(buf, 64); \ + if (!s) \ + return -ENOMEM; \ + kfree(codec->type); \ + codec->type = s; \ + return count; \ +} + +CODEC_INFO_STORE(vendor_id); +CODEC_INFO_STORE(subsystem_id); +CODEC_INFO_STORE(revision_id); +CODEC_INFO_STR_STORE(vendor_name); +CODEC_INFO_STR_STORE(chip_name); +CODEC_INFO_STR_STORE(modelname); + +#define CODEC_ACTION_STORE(type) \ +static ssize_t type##_store(struct device *dev, \ + struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + struct hda_codec *codec = dev_get_drvdata(dev); \ + int err = 0; \ + if (*buf) \ + err = type##_codec(codec); \ + return err < 0 ? err : count; \ +} + +CODEC_ACTION_STORE(reconfig); +CODEC_ACTION_STORE(clear); + +static ssize_t init_verbs_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hda_codec *codec = dev_get_drvdata(dev); + int i, len = 0; + mutex_lock(&codec->user_mutex); + for (i = 0; i < codec->init_verbs.used; i++) { + struct hda_verb *v = snd_array_elem(&codec->init_verbs, i); + len += snprintf(buf + len, PAGE_SIZE - len, + "0x%02x 0x%03x 0x%04x\n", + v->nid, v->verb, v->param); + } + mutex_unlock(&codec->user_mutex); + return len; +} + +static int parse_init_verbs(struct hda_codec *codec, const char *buf) +{ + struct hda_verb *v; + int nid, verb, param; + + if (sscanf(buf, "%i %i %i", &nid, &verb, ¶m) != 3) + return -EINVAL; + if (!nid || !verb) + return -EINVAL; + mutex_lock(&codec->user_mutex); + v = snd_array_new(&codec->init_verbs); + if (!v) { + mutex_unlock(&codec->user_mutex); + return -ENOMEM; + } + v->nid = nid; + v->verb = verb; + v->param = param; + mutex_unlock(&codec->user_mutex); + return 0; +} + +static ssize_t init_verbs_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hda_codec *codec = dev_get_drvdata(dev); + int err = parse_init_verbs(codec, buf); + if (err < 0) + return err; + return count; +} + +static ssize_t hints_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hda_codec *codec = dev_get_drvdata(dev); + int i, len = 0; + mutex_lock(&codec->user_mutex); + for (i = 0; i < codec->hints.used; i++) { + struct hda_hint *hint = snd_array_elem(&codec->hints, i); + len += snprintf(buf + len, PAGE_SIZE - len, + "%s = %s\n", hint->key, hint->val); + } + mutex_unlock(&codec->user_mutex); + return len; +} + +static struct hda_hint *get_hint(struct hda_codec *codec, const char *key) +{ + int i; + + for (i = 0; i < codec->hints.used; i++) { + struct hda_hint *hint = snd_array_elem(&codec->hints, i); + if (!strcmp(hint->key, key)) + return hint; + } + return NULL; +} + +static void remove_trail_spaces(char *str) +{ + char *p; + if (!*str) + return; + p = str + strlen(str) - 1; + for (; isspace(*p); p--) { + *p = 0; + if (p == str) + return; + } +} + +#define MAX_HINTS 1024 + +static int parse_hints(struct hda_codec *codec, const char *buf) +{ + char *key, *val; + struct hda_hint *hint; + int err = 0; + + buf = skip_spaces(buf); + if (!*buf || *buf == '#' || *buf == '\n') + return 0; + if (*buf == '=') + return -EINVAL; + key = kstrndup_noeol(buf, 1024); + if (!key) + return -ENOMEM; + /* extract key and val */ + val = strchr(key, '='); + if (!val) { + kfree(key); + return -EINVAL; + } + *val++ = 0; + val = skip_spaces(val); + remove_trail_spaces(key); + remove_trail_spaces(val); + mutex_lock(&codec->user_mutex); + hint = get_hint(codec, key); + if (hint) { + /* replace */ + kfree(hint->key); + hint->key = key; + hint->val = val; + goto unlock; + } + /* allocate a new hint entry */ + if (codec->hints.used >= MAX_HINTS) + hint = NULL; + else + hint = snd_array_new(&codec->hints); + if (hint) { + hint->key = key; + hint->val = val; + } else { + err = -ENOMEM; + } + unlock: + mutex_unlock(&codec->user_mutex); + if (err) + kfree(key); + return err; +} + +static ssize_t hints_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hda_codec *codec = dev_get_drvdata(dev); + int err = parse_hints(codec, buf); + if (err < 0) + return err; + return count; +} + +static ssize_t pin_configs_show(struct hda_codec *codec, + struct snd_array *list, + char *buf) +{ + int i, len = 0; + mutex_lock(&codec->user_mutex); + for (i = 0; i < list->used; i++) { + struct hda_pincfg *pin = snd_array_elem(list, i); + len += sprintf(buf + len, "0x%02x 0x%08x\n", + pin->nid, pin->cfg); + } + mutex_unlock(&codec->user_mutex); + return len; +} + +static ssize_t init_pin_configs_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hda_codec *codec = dev_get_drvdata(dev); + return pin_configs_show(codec, &codec->init_pins, buf); +} + +static ssize_t user_pin_configs_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hda_codec *codec = dev_get_drvdata(dev); + return pin_configs_show(codec, &codec->user_pins, buf); +} + +static ssize_t driver_pin_configs_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hda_codec *codec = dev_get_drvdata(dev); + return pin_configs_show(codec, &codec->driver_pins, buf); +} + +#define MAX_PIN_CONFIGS 32 + +static int parse_user_pin_configs(struct hda_codec *codec, const char *buf) +{ + int nid, cfg, err; + + if (sscanf(buf, "%i %i", &nid, &cfg) != 2) + return -EINVAL; + if (!nid) + return -EINVAL; + mutex_lock(&codec->user_mutex); + err = snd_hda_add_pincfg(codec, &codec->user_pins, nid, cfg); + mutex_unlock(&codec->user_mutex); + return err; +} + +static ssize_t user_pin_configs_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hda_codec *codec = dev_get_drvdata(dev); + int err = parse_user_pin_configs(codec, buf); + if (err < 0) + return err; + return count; +} + +static DEVICE_ATTR_RW(vendor_id); +static DEVICE_ATTR_RW(subsystem_id); +static DEVICE_ATTR_RW(revision_id); +static DEVICE_ATTR_RO(afg); +static DEVICE_ATTR_RO(mfg); +static DEVICE_ATTR_RW(vendor_name); +static DEVICE_ATTR_RW(chip_name); +static DEVICE_ATTR_RW(modelname); +static DEVICE_ATTR_RW(init_verbs); +static DEVICE_ATTR_RW(hints); +static DEVICE_ATTR_RO(init_pin_configs); +static DEVICE_ATTR_RW(user_pin_configs); +static DEVICE_ATTR_RO(driver_pin_configs); +static DEVICE_ATTR_WO(reconfig); +static DEVICE_ATTR_WO(clear); + +/* + * Look for hint string + */ +const char *snd_hda_get_hint(struct hda_codec *codec, const char *key) +{ + struct hda_hint *hint = get_hint(codec, key); + return hint ? hint->val : NULL; +} +EXPORT_SYMBOL_GPL(snd_hda_get_hint); + +int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key) +{ + const char *p; + int ret; + + mutex_lock(&codec->user_mutex); + p = snd_hda_get_hint(codec, key); + if (!p || !*p) + ret = -ENOENT; + else { + switch (toupper(*p)) { + case 'T': /* true */ + case 'Y': /* yes */ + case '1': + ret = 1; + break; + default: + ret = 0; + break; + } + } + mutex_unlock(&codec->user_mutex); + return ret; +} +EXPORT_SYMBOL_GPL(snd_hda_get_bool_hint); + +int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp) +{ + const char *p; + unsigned long val; + int ret; + + mutex_lock(&codec->user_mutex); + p = snd_hda_get_hint(codec, key); + if (!p) + ret = -ENOENT; + else if (kstrtoul(p, 0, &val)) + ret = -EINVAL; + else { + *valp = val; + ret = 0; + } + mutex_unlock(&codec->user_mutex); + return ret; +} +EXPORT_SYMBOL_GPL(snd_hda_get_int_hint); +#endif /* CONFIG_SND_HDA_RECONFIG */ + +#ifdef CONFIG_SND_HDA_PATCH_LOADER + +/* parser mode */ +enum { + LINE_MODE_NONE, + LINE_MODE_CODEC, + LINE_MODE_MODEL, + LINE_MODE_PINCFG, + LINE_MODE_VERB, + LINE_MODE_HINT, + LINE_MODE_VENDOR_ID, + LINE_MODE_SUBSYSTEM_ID, + LINE_MODE_REVISION_ID, + LINE_MODE_CHIP_NAME, + NUM_LINE_MODES, +}; + +static inline int strmatch(const char *a, const char *b) +{ + return strnicmp(a, b, strlen(b)) == 0; +} + +/* parse the contents after the line "[codec]" + * accept only the line with three numbers, and assign the current codec + */ +static void parse_codec_mode(char *buf, struct hda_bus *bus, + struct hda_codec **codecp) +{ + int vendorid, subid, caddr; + struct hda_codec *codec; + + *codecp = NULL; + if (sscanf(buf, "%i %i %i", &vendorid, &subid, &caddr) == 3) { + list_for_each_entry(codec, &bus->codec_list, list) { + if ((vendorid <= 0 || codec->vendor_id == vendorid) && + (subid <= 0 || codec->subsystem_id == subid) && + codec->addr == caddr) { + *codecp = codec; + break; + } + } + } +} + +/* parse the contents after the other command tags, [pincfg], [verb], + * [vendor_id], [subsystem_id], [revision_id], [chip_name], [hint] and [model] + * just pass to the sysfs helper (only when any codec was specified) + */ +static void parse_pincfg_mode(char *buf, struct hda_bus *bus, + struct hda_codec **codecp) +{ + parse_user_pin_configs(*codecp, buf); +} + +static void parse_verb_mode(char *buf, struct hda_bus *bus, + struct hda_codec **codecp) +{ + parse_init_verbs(*codecp, buf); +} + +static void parse_hint_mode(char *buf, struct hda_bus *bus, + struct hda_codec **codecp) +{ + parse_hints(*codecp, buf); +} + +static void parse_model_mode(char *buf, struct hda_bus *bus, + struct hda_codec **codecp) +{ + kfree((*codecp)->modelname); + (*codecp)->modelname = kstrdup(buf, GFP_KERNEL); +} + +static void parse_chip_name_mode(char *buf, struct hda_bus *bus, + struct hda_codec **codecp) +{ + kfree((*codecp)->chip_name); + (*codecp)->chip_name = kstrdup(buf, GFP_KERNEL); +} + +#define DEFINE_PARSE_ID_MODE(name) \ +static void parse_##name##_mode(char *buf, struct hda_bus *bus, \ + struct hda_codec **codecp) \ +{ \ + unsigned long val; \ + if (!kstrtoul(buf, 0, &val)) \ + (*codecp)->name = val; \ +} + +DEFINE_PARSE_ID_MODE(vendor_id); +DEFINE_PARSE_ID_MODE(subsystem_id); +DEFINE_PARSE_ID_MODE(revision_id); + + +struct hda_patch_item { + const char *tag; + const char *alias; + void (*parser)(char *buf, struct hda_bus *bus, struct hda_codec **retc); +}; + +static struct hda_patch_item patch_items[NUM_LINE_MODES] = { + [LINE_MODE_CODEC] = { + .tag = "[codec]", + .parser = parse_codec_mode, + }, + [LINE_MODE_MODEL] = { + .tag = "[model]", + .parser = parse_model_mode, + }, + [LINE_MODE_VERB] = { + .tag = "[verb]", + .alias = "[init_verbs]", + .parser = parse_verb_mode, + }, + [LINE_MODE_PINCFG] = { + .tag = "[pincfg]", + .alias = "[user_pin_configs]", + .parser = parse_pincfg_mode, + }, + [LINE_MODE_HINT] = { + .tag = "[hint]", + .alias = "[hints]", + .parser = parse_hint_mode + }, + [LINE_MODE_VENDOR_ID] = { + .tag = "[vendor_id]", + .parser = parse_vendor_id_mode, + }, + [LINE_MODE_SUBSYSTEM_ID] = { + .tag = "[subsystem_id]", + .parser = parse_subsystem_id_mode, + }, + [LINE_MODE_REVISION_ID] = { + .tag = "[revision_id]", + .parser = parse_revision_id_mode, + }, + [LINE_MODE_CHIP_NAME] = { + .tag = "[chip_name]", + .parser = parse_chip_name_mode, + }, +}; + +/* check the line starting with '[' -- change the parser mode accodingly */ +static int parse_line_mode(char *buf, struct hda_bus *bus) +{ + int i; + for (i = 0; i < ARRAY_SIZE(patch_items); i++) { + if (!patch_items[i].tag) + continue; + if (strmatch(buf, patch_items[i].tag)) + return i; + if (patch_items[i].alias && strmatch(buf, patch_items[i].alias)) + return i; + } + return LINE_MODE_NONE; +} + +/* copy one line from the buffer in fw, and update the fields in fw + * return zero if it reaches to the end of the buffer, or non-zero + * if successfully copied a line + * + * the spaces at the beginning and the end of the line are stripped + */ +static int get_line_from_fw(char *buf, int size, size_t *fw_size_p, + const void **fw_data_p) +{ + int len; + size_t fw_size = *fw_size_p; + const char *p = *fw_data_p; + + while (isspace(*p) && fw_size) { + p++; + fw_size--; + } + if (!fw_size) + return 0; + + for (len = 0; len < fw_size; len++) { + if (!*p) + break; + if (*p == '\n') { + p++; + len++; + break; + } + if (len < size) + *buf++ = *p++; + } + *buf = 0; + *fw_size_p = fw_size - len; + *fw_data_p = p; + remove_trail_spaces(buf); + return 1; +} + +/* + * load a "patch" firmware file and parse it + */ +int snd_hda_load_patch(struct hda_bus *bus, size_t fw_size, const void *fw_buf) +{ + char buf[128]; + struct hda_codec *codec; + int line_mode; + + line_mode = LINE_MODE_NONE; + codec = NULL; + while (get_line_from_fw(buf, sizeof(buf) - 1, &fw_size, &fw_buf)) { + if (!*buf || *buf == '#' || *buf == '\n') + continue; + if (*buf == '[') + line_mode = parse_line_mode(buf, bus); + else if (patch_items[line_mode].parser && + (codec || line_mode <= LINE_MODE_CODEC)) + patch_items[line_mode].parser(buf, bus, &codec); + } + return 0; +} +EXPORT_SYMBOL_GPL(snd_hda_load_patch); +#endif /* CONFIG_SND_HDA_PATCH_LOADER */ + +/* + * sysfs entries + */ +static struct attribute *hda_dev_attrs[] = { +#ifdef CONFIG_PM + &dev_attr_power_on_acct.attr, + &dev_attr_power_off_acct.attr, +#endif +#ifdef CONFIG_SND_HDA_RECONFIG + &dev_attr_vendor_id.attr, + &dev_attr_subsystem_id.attr, + &dev_attr_revision_id.attr, + &dev_attr_afg.attr, + &dev_attr_mfg.attr, + &dev_attr_vendor_name.attr, + &dev_attr_chip_name.attr, + &dev_attr_modelname.attr, + &dev_attr_init_verbs.attr, + &dev_attr_hints.attr, + &dev_attr_init_pin_configs.attr, + &dev_attr_user_pin_configs.attr, + &dev_attr_driver_pin_configs.attr, + &dev_attr_reconfig.attr, + &dev_attr_clear.attr, +#endif + NULL +}; + +static struct attribute_group hda_dev_attr_group = { + .attrs = hda_dev_attrs, +}; + +const struct attribute_group *snd_hda_dev_attr_groups[] = { + &hda_dev_attr_group, + NULL +}; + +void snd_hda_sysfs_init(struct hda_codec *codec) +{ +#ifdef CONFIG_SND_HDA_RECONFIG + mutex_init(&codec->user_mutex); + snd_array_init(&codec->init_verbs, sizeof(struct hda_verb), 32); + snd_array_init(&codec->hints, sizeof(struct hda_hint), 32); + snd_array_init(&codec->user_pins, sizeof(struct hda_pincfg), 16); +#endif +} + +void snd_hda_sysfs_clear(struct hda_codec *codec) +{ +#ifdef CONFIG_SND_HDA_RECONFIG + int i; + + /* clear init verbs */ + snd_array_free(&codec->init_verbs); + /* clear hints */ + for (i = 0; i < codec->hints.used; i++) { + struct hda_hint *hint = snd_array_elem(&codec->hints, i); + kfree(hint->key); /* we don't need to free hint->val */ + } + snd_array_free(&codec->hints); + snd_array_free(&codec->user_pins); +#endif +}