forked from Minki/linux
ASoC: Move sysfs and debugfs functions to head of soc-core.c
A fairly hefty change in diff terms but no actual code changes, will be used by the next commit. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown
parent
529697c546
commit
2624d5fa67
@ -80,6 +80,173 @@ static int run_delayed_work(struct delayed_work *dwork)
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return ret;
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}
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/* codec register dump */
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static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf)
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{
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int i, step = 1, count = 0;
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if (!codec->reg_cache_size)
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return 0;
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if (codec->reg_cache_step)
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step = codec->reg_cache_step;
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count += sprintf(buf, "%s registers\n", codec->name);
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for (i = 0; i < codec->reg_cache_size; i += step) {
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if (codec->readable_register && !codec->readable_register(i))
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continue;
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count += sprintf(buf + count, "%2x: ", i);
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if (count >= PAGE_SIZE - 1)
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break;
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if (codec->display_register)
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count += codec->display_register(codec, buf + count,
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PAGE_SIZE - count, i);
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else
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count += snprintf(buf + count, PAGE_SIZE - count,
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"%4x", codec->read(codec, i));
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if (count >= PAGE_SIZE - 1)
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break;
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count += snprintf(buf + count, PAGE_SIZE - count, "\n");
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if (count >= PAGE_SIZE - 1)
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break;
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}
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/* Truncate count; min() would cause a warning */
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if (count >= PAGE_SIZE)
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count = PAGE_SIZE - 1;
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return count;
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}
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static ssize_t codec_reg_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct snd_soc_device *devdata = dev_get_drvdata(dev);
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return soc_codec_reg_show(devdata->card->codec, buf);
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}
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static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL);
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#ifdef CONFIG_DEBUG_FS
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static int codec_reg_open_file(struct inode *inode, struct file *file)
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{
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file->private_data = inode->i_private;
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return 0;
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}
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static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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ssize_t ret;
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struct snd_soc_codec *codec = file->private_data;
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char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
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if (!buf)
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return -ENOMEM;
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ret = soc_codec_reg_show(codec, buf);
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if (ret >= 0)
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ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
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kfree(buf);
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return ret;
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}
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static ssize_t codec_reg_write_file(struct file *file,
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const char __user *user_buf, size_t count, loff_t *ppos)
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{
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char buf[32];
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int buf_size;
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char *start = buf;
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unsigned long reg, value;
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int step = 1;
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struct snd_soc_codec *codec = file->private_data;
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buf_size = min(count, (sizeof(buf)-1));
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if (copy_from_user(buf, user_buf, buf_size))
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return -EFAULT;
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buf[buf_size] = 0;
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if (codec->reg_cache_step)
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step = codec->reg_cache_step;
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while (*start == ' ')
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start++;
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reg = simple_strtoul(start, &start, 16);
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if ((reg >= codec->reg_cache_size) || (reg % step))
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return -EINVAL;
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while (*start == ' ')
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start++;
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if (strict_strtoul(start, 16, &value))
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return -EINVAL;
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codec->write(codec, reg, value);
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return buf_size;
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}
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static const struct file_operations codec_reg_fops = {
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.open = codec_reg_open_file,
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.read = codec_reg_read_file,
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.write = codec_reg_write_file,
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};
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static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
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{
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char codec_root[128];
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if (codec->dev)
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snprintf(codec_root, sizeof(codec_root),
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"%s.%s", codec->name, dev_name(codec->dev));
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else
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snprintf(codec_root, sizeof(codec_root),
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"%s", codec->name);
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codec->debugfs_codec_root = debugfs_create_dir(codec_root,
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debugfs_root);
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if (!codec->debugfs_codec_root) {
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printk(KERN_WARNING
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"ASoC: Failed to create codec debugfs directory\n");
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return;
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}
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codec->debugfs_reg = debugfs_create_file("codec_reg", 0644,
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codec->debugfs_codec_root,
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codec, &codec_reg_fops);
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if (!codec->debugfs_reg)
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printk(KERN_WARNING
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"ASoC: Failed to create codec register debugfs file\n");
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codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0744,
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codec->debugfs_codec_root,
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&codec->pop_time);
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if (!codec->debugfs_pop_time)
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printk(KERN_WARNING
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"Failed to create pop time debugfs file\n");
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codec->debugfs_dapm = debugfs_create_dir("dapm",
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codec->debugfs_codec_root);
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if (!codec->debugfs_dapm)
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printk(KERN_WARNING
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"Failed to create DAPM debugfs directory\n");
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snd_soc_dapm_debugfs_init(codec);
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}
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static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
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{
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debugfs_remove_recursive(codec->debugfs_codec_root);
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}
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#else
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static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec)
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{
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}
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static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
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{
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}
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#endif
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#ifdef CONFIG_SND_SOC_AC97_BUS
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/* unregister ac97 codec */
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static int soc_ac97_dev_unregister(struct snd_soc_codec *codec)
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@ -1111,173 +1278,6 @@ int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg)
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}
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EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register);
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/* codec register dump */
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static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf)
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{
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int i, step = 1, count = 0;
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if (!codec->reg_cache_size)
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return 0;
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if (codec->reg_cache_step)
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step = codec->reg_cache_step;
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count += sprintf(buf, "%s registers\n", codec->name);
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for (i = 0; i < codec->reg_cache_size; i += step) {
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if (codec->readable_register && !codec->readable_register(i))
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continue;
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count += sprintf(buf + count, "%2x: ", i);
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if (count >= PAGE_SIZE - 1)
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break;
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if (codec->display_register)
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count += codec->display_register(codec, buf + count,
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PAGE_SIZE - count, i);
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else
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count += snprintf(buf + count, PAGE_SIZE - count,
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"%4x", codec->read(codec, i));
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if (count >= PAGE_SIZE - 1)
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break;
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count += snprintf(buf + count, PAGE_SIZE - count, "\n");
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if (count >= PAGE_SIZE - 1)
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break;
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}
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/* Truncate count; min() would cause a warning */
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if (count >= PAGE_SIZE)
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count = PAGE_SIZE - 1;
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return count;
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}
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static ssize_t codec_reg_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct snd_soc_device *devdata = dev_get_drvdata(dev);
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return soc_codec_reg_show(devdata->card->codec, buf);
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}
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static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL);
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#ifdef CONFIG_DEBUG_FS
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static int codec_reg_open_file(struct inode *inode, struct file *file)
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{
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file->private_data = inode->i_private;
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return 0;
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}
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static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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ssize_t ret;
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struct snd_soc_codec *codec = file->private_data;
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char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
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if (!buf)
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return -ENOMEM;
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ret = soc_codec_reg_show(codec, buf);
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if (ret >= 0)
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ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
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kfree(buf);
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return ret;
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}
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static ssize_t codec_reg_write_file(struct file *file,
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const char __user *user_buf, size_t count, loff_t *ppos)
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{
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char buf[32];
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int buf_size;
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char *start = buf;
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unsigned long reg, value;
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int step = 1;
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struct snd_soc_codec *codec = file->private_data;
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buf_size = min(count, (sizeof(buf)-1));
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if (copy_from_user(buf, user_buf, buf_size))
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return -EFAULT;
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buf[buf_size] = 0;
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if (codec->reg_cache_step)
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step = codec->reg_cache_step;
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while (*start == ' ')
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start++;
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reg = simple_strtoul(start, &start, 16);
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if ((reg >= codec->reg_cache_size) || (reg % step))
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return -EINVAL;
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while (*start == ' ')
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start++;
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if (strict_strtoul(start, 16, &value))
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return -EINVAL;
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codec->write(codec, reg, value);
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return buf_size;
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}
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static const struct file_operations codec_reg_fops = {
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.open = codec_reg_open_file,
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.read = codec_reg_read_file,
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.write = codec_reg_write_file,
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};
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static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
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{
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char codec_root[128];
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if (codec->dev)
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snprintf(codec_root, sizeof(codec_root),
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"%s.%s", codec->name, dev_name(codec->dev));
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else
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snprintf(codec_root, sizeof(codec_root),
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"%s", codec->name);
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codec->debugfs_codec_root = debugfs_create_dir(codec_root,
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debugfs_root);
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if (!codec->debugfs_codec_root) {
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printk(KERN_WARNING
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"ASoC: Failed to create codec debugfs directory\n");
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return;
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}
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codec->debugfs_reg = debugfs_create_file("codec_reg", 0644,
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codec->debugfs_codec_root,
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codec, &codec_reg_fops);
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if (!codec->debugfs_reg)
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printk(KERN_WARNING
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"ASoC: Failed to create codec register debugfs file\n");
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codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0744,
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codec->debugfs_codec_root,
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&codec->pop_time);
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if (!codec->debugfs_pop_time)
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printk(KERN_WARNING
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"Failed to create pop time debugfs file\n");
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codec->debugfs_dapm = debugfs_create_dir("dapm",
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codec->debugfs_codec_root);
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if (!codec->debugfs_dapm)
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printk(KERN_WARNING
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"Failed to create DAPM debugfs directory\n");
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snd_soc_dapm_debugfs_init(codec);
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}
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static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
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{
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debugfs_remove_recursive(codec->debugfs_codec_root);
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}
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#else
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static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec)
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{
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}
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static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
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{
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}
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#endif
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/**
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* snd_soc_new_ac97_codec - initailise AC97 device
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* @codec: audio codec
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