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@@ -21,22 +21,12 @@
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/compat.h>
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-#include <linux/mutex.h>
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-#include <linux/ctype.h>
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-#include <linux/string.h>
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-#include <linux/export.h>
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#include <sound/core.h>
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#include "hda_codec.h"
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#include "hda_local.h"
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#include <sound/hda_hwdep.h>
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#include <sound/minors.h>
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-/* hint string pair */
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-struct hda_hint {
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- const char *key;
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- const char *val; /* contained in the same alloc as key */
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-};
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-
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/*
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* write/read an out-of-bound verb
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*/
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@@ -104,28 +94,6 @@ static int hda_hwdep_open(struct snd_hwdep *hw, struct file *file)
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return 0;
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}
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-static void clear_hwdep_elements(struct hda_codec *codec)
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-{
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- int i;
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-
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- /* clear init verbs */
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- snd_array_free(&codec->init_verbs);
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- /* clear hints */
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- for (i = 0; i < codec->hints.used; i++) {
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- struct hda_hint *hint = snd_array_elem(&codec->hints, i);
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- kfree(hint->key); /* we don't need to free hint->val */
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- }
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- snd_array_free(&codec->hints);
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- snd_array_free(&codec->user_pins);
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-}
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-
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-static void hwdep_free(struct snd_hwdep *hwdep)
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-{
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- clear_hwdep_elements(hwdep->private_data);
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-}
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-
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-static const struct attribute_group *snd_hda_dev_attr_groups[];
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-
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int snd_hda_create_hwdep(struct hda_codec *codec)
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{
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char hwname[16];
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@@ -140,7 +108,6 @@ int snd_hda_create_hwdep(struct hda_codec *codec)
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sprintf(hwdep->name, "HDA Codec %d", codec->addr);
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hwdep->iface = SNDRV_HWDEP_IFACE_HDA;
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hwdep->private_data = codec;
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- hwdep->private_free = hwdep_free;
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hwdep->exclusive = 1;
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hwdep->groups = snd_hda_dev_attr_groups;
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@@ -150,729 +117,8 @@ int snd_hda_create_hwdep(struct hda_codec *codec)
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hwdep->ops.ioctl_compat = hda_hwdep_ioctl_compat;
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#endif
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- mutex_init(&codec->user_mutex);
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- snd_array_init(&codec->init_verbs, sizeof(struct hda_verb), 32);
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- snd_array_init(&codec->hints, sizeof(struct hda_hint), 32);
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- snd_array_init(&codec->user_pins, sizeof(struct hda_pincfg), 16);
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-
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/* link to codec */
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hwdep->dev = &codec->dev;
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return 0;
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}
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-
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-#ifdef CONFIG_PM
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-static ssize_t power_on_acct_show(struct device *dev,
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- struct device_attribute *attr,
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- char *buf)
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-{
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- struct hda_codec *codec = dev_get_drvdata(dev);
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- snd_hda_update_power_acct(codec);
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- return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_on_acct));
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-}
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-
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-static ssize_t power_off_acct_show(struct device *dev,
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- struct device_attribute *attr,
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- char *buf)
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-{
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- struct hda_codec *codec = dev_get_drvdata(dev);
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- snd_hda_update_power_acct(codec);
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- return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_off_acct));
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-}
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-
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-static DEVICE_ATTR_RO(power_on_acct);
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-static DEVICE_ATTR_RO(power_off_acct);
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-#endif /* CONFIG_PM */
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-
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-#ifdef CONFIG_SND_HDA_RECONFIG
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-
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-/*
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- * sysfs interface
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- */
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-
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-static int clear_codec(struct hda_codec *codec)
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-{
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- int err;
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-
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- err = snd_hda_codec_reset(codec);
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- if (err < 0) {
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- snd_printk(KERN_ERR "The codec is being used, can't free.\n");
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- return err;
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- }
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- clear_hwdep_elements(codec);
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- return 0;
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-}
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-
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-static int reconfig_codec(struct hda_codec *codec)
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-{
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- int err;
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-
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- snd_hda_power_up(codec);
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- snd_printk(KERN_INFO "hda-codec: reconfiguring\n");
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- err = snd_hda_codec_reset(codec);
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- if (err < 0) {
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- snd_printk(KERN_ERR
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- "The codec is being used, can't reconfigure.\n");
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- goto error;
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- }
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- err = snd_hda_codec_configure(codec);
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- if (err < 0)
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- goto error;
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- /* rebuild PCMs */
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- err = snd_hda_codec_build_pcms(codec);
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- if (err < 0)
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- goto error;
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- /* rebuild mixers */
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- err = snd_hda_codec_build_controls(codec);
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- if (err < 0)
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- goto error;
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- err = snd_card_register(codec->bus->card);
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- error:
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- snd_hda_power_down(codec);
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- return err;
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-}
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-
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-/*
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- * allocate a string at most len chars, and remove the trailing EOL
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- */
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-static char *kstrndup_noeol(const char *src, size_t len)
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-{
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- char *s = kstrndup(src, len, GFP_KERNEL);
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- char *p;
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- if (!s)
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- return NULL;
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- p = strchr(s, '\n');
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- if (p)
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- *p = 0;
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- return s;
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-}
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-
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-#define CODEC_INFO_SHOW(type) \
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-static ssize_t type##_show(struct device *dev, \
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- struct device_attribute *attr, \
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- char *buf) \
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-{ \
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- struct hda_codec *codec = dev_get_drvdata(dev); \
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- return sprintf(buf, "0x%x\n", codec->type); \
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-}
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-
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-#define CODEC_INFO_STR_SHOW(type) \
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-static ssize_t type##_show(struct device *dev, \
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- struct device_attribute *attr, \
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- char *buf) \
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-{ \
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- struct hda_codec *codec = dev_get_drvdata(dev); \
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- return sprintf(buf, "%s\n", \
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- codec->type ? codec->type : ""); \
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-}
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-
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-CODEC_INFO_SHOW(vendor_id);
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-CODEC_INFO_SHOW(subsystem_id);
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-CODEC_INFO_SHOW(revision_id);
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-CODEC_INFO_SHOW(afg);
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-CODEC_INFO_SHOW(mfg);
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-CODEC_INFO_STR_SHOW(vendor_name);
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-CODEC_INFO_STR_SHOW(chip_name);
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-CODEC_INFO_STR_SHOW(modelname);
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-
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-#define CODEC_INFO_STORE(type) \
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-static ssize_t type##_store(struct device *dev, \
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- struct device_attribute *attr, \
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- const char *buf, size_t count) \
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-{ \
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- struct hda_codec *codec = dev_get_drvdata(dev); \
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- unsigned long val; \
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- int err = kstrtoul(buf, 0, &val); \
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- if (err < 0) \
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- return err; \
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- codec->type = val; \
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- return count; \
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-}
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-
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-#define CODEC_INFO_STR_STORE(type) \
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-static ssize_t type##_store(struct device *dev, \
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- struct device_attribute *attr, \
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- const char *buf, size_t count) \
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-{ \
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- struct hda_codec *codec = dev_get_drvdata(dev); \
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- char *s = kstrndup_noeol(buf, 64); \
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- if (!s) \
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- return -ENOMEM; \
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- kfree(codec->type); \
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- codec->type = s; \
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- return count; \
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-}
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-
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-CODEC_INFO_STORE(vendor_id);
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-CODEC_INFO_STORE(subsystem_id);
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-CODEC_INFO_STORE(revision_id);
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-CODEC_INFO_STR_STORE(vendor_name);
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-CODEC_INFO_STR_STORE(chip_name);
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-CODEC_INFO_STR_STORE(modelname);
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-
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-#define CODEC_ACTION_STORE(type) \
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-static ssize_t type##_store(struct device *dev, \
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- struct device_attribute *attr, \
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- const char *buf, size_t count) \
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-{ \
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- struct hda_codec *codec = dev_get_drvdata(dev); \
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- int err = 0; \
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- if (*buf) \
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- err = type##_codec(codec); \
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- return err < 0 ? err : count; \
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-}
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-
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-CODEC_ACTION_STORE(reconfig);
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-CODEC_ACTION_STORE(clear);
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-
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-static ssize_t init_verbs_show(struct device *dev,
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- struct device_attribute *attr,
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- char *buf)
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-{
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- struct hda_codec *codec = dev_get_drvdata(dev);
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- int i, len = 0;
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- mutex_lock(&codec->user_mutex);
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- for (i = 0; i < codec->init_verbs.used; i++) {
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- struct hda_verb *v = snd_array_elem(&codec->init_verbs, i);
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- len += snprintf(buf + len, PAGE_SIZE - len,
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- "0x%02x 0x%03x 0x%04x\n",
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- v->nid, v->verb, v->param);
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- }
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- mutex_unlock(&codec->user_mutex);
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- return len;
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-}
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-
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-static int parse_init_verbs(struct hda_codec *codec, const char *buf)
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-{
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- struct hda_verb *v;
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- int nid, verb, param;
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-
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- if (sscanf(buf, "%i %i %i", &nid, &verb, ¶m) != 3)
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- return -EINVAL;
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- if (!nid || !verb)
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- return -EINVAL;
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- mutex_lock(&codec->user_mutex);
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- v = snd_array_new(&codec->init_verbs);
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- if (!v) {
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- mutex_unlock(&codec->user_mutex);
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- return -ENOMEM;
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- }
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- v->nid = nid;
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- v->verb = verb;
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- v->param = param;
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- mutex_unlock(&codec->user_mutex);
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- return 0;
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-}
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-
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-static ssize_t init_verbs_store(struct device *dev,
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- struct device_attribute *attr,
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- const char *buf, size_t count)
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-{
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- struct hda_codec *codec = dev_get_drvdata(dev);
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- int err = parse_init_verbs(codec, buf);
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- if (err < 0)
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- return err;
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- return count;
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-}
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-
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-static ssize_t hints_show(struct device *dev,
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- struct device_attribute *attr,
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- char *buf)
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-{
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- struct hda_codec *codec = dev_get_drvdata(dev);
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- int i, len = 0;
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- mutex_lock(&codec->user_mutex);
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- for (i = 0; i < codec->hints.used; i++) {
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- struct hda_hint *hint = snd_array_elem(&codec->hints, i);
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- len += snprintf(buf + len, PAGE_SIZE - len,
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- "%s = %s\n", hint->key, hint->val);
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- }
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- mutex_unlock(&codec->user_mutex);
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- return len;
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-}
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-
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-static struct hda_hint *get_hint(struct hda_codec *codec, const char *key)
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-{
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- int i;
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-
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- for (i = 0; i < codec->hints.used; i++) {
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- struct hda_hint *hint = snd_array_elem(&codec->hints, i);
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- if (!strcmp(hint->key, key))
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- return hint;
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- }
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- return NULL;
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-}
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-
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-static void remove_trail_spaces(char *str)
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-{
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- char *p;
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- if (!*str)
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- return;
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- p = str + strlen(str) - 1;
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- for (; isspace(*p); p--) {
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- *p = 0;
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- if (p == str)
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- return;
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- }
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-}
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-
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-#define MAX_HINTS 1024
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-
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-static int parse_hints(struct hda_codec *codec, const char *buf)
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-{
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- char *key, *val;
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- struct hda_hint *hint;
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- int err = 0;
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-
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- buf = skip_spaces(buf);
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- if (!*buf || *buf == '#' || *buf == '\n')
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- return 0;
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- if (*buf == '=')
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- return -EINVAL;
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- key = kstrndup_noeol(buf, 1024);
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- if (!key)
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- return -ENOMEM;
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- /* extract key and val */
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- val = strchr(key, '=');
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- if (!val) {
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- kfree(key);
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- return -EINVAL;
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- }
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- *val++ = 0;
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- val = skip_spaces(val);
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- remove_trail_spaces(key);
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- remove_trail_spaces(val);
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- mutex_lock(&codec->user_mutex);
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- hint = get_hint(codec, key);
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- if (hint) {
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- /* replace */
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- kfree(hint->key);
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- hint->key = key;
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- hint->val = val;
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- goto unlock;
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- }
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- /* allocate a new hint entry */
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- if (codec->hints.used >= MAX_HINTS)
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- hint = NULL;
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- else
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- hint = snd_array_new(&codec->hints);
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- if (hint) {
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- hint->key = key;
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- hint->val = val;
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- } else {
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- err = -ENOMEM;
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- }
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- unlock:
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- mutex_unlock(&codec->user_mutex);
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- if (err)
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- kfree(key);
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- return err;
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-}
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-
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-static ssize_t hints_store(struct device *dev,
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- struct device_attribute *attr,
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- const char *buf, size_t count)
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-{
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- struct hda_codec *codec = dev_get_drvdata(dev);
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- int err = parse_hints(codec, buf);
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- if (err < 0)
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- return err;
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- return count;
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-}
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-
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-static ssize_t pin_configs_show(struct hda_codec *codec,
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- struct snd_array *list,
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- char *buf)
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-{
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- int i, len = 0;
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- mutex_lock(&codec->user_mutex);
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- for (i = 0; i < list->used; i++) {
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- struct hda_pincfg *pin = snd_array_elem(list, i);
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- len += sprintf(buf + len, "0x%02x 0x%08x\n",
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- pin->nid, pin->cfg);
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- }
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- mutex_unlock(&codec->user_mutex);
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- return len;
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-}
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-
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-static ssize_t init_pin_configs_show(struct device *dev,
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- struct device_attribute *attr,
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- char *buf)
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-{
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- struct hda_codec *codec = dev_get_drvdata(dev);
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|
|
- 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
|
|
|
-};
|
Takashi Iwai