diff options
Diffstat (limited to 'sound/soc/sof/debug.c')
-rw-r--r-- | sound/soc/sof/debug.c | 226 |
1 files changed, 0 insertions, 226 deletions
diff --git a/sound/soc/sof/debug.c b/sound/soc/sof/debug.c index 937fe6e11d0d..145fd0d1e166 100644 --- a/sound/soc/sof/debug.c +++ b/sound/soc/sof/debug.c @@ -19,221 +19,6 @@ #include "sof-priv.h" #include "ops.h" -#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_PROBES) -#include "sof-probes.h" - -/** - * strsplit_u32 - Split string into sequence of u32 tokens - * @buf: String to split into tokens. - * @delim: String containing delimiter characters. - * @tkns: Returned u32 sequence pointer. - * @num_tkns: Returned number of tokens obtained. - */ -static int -strsplit_u32(char **buf, const char *delim, u32 **tkns, size_t *num_tkns) -{ - char *s; - u32 *data, *tmp; - size_t count = 0; - size_t cap = 32; - int ret = 0; - - *tkns = NULL; - *num_tkns = 0; - data = kcalloc(cap, sizeof(*data), GFP_KERNEL); - if (!data) - return -ENOMEM; - - while ((s = strsep(buf, delim)) != NULL) { - ret = kstrtouint(s, 0, data + count); - if (ret) - goto exit; - if (++count >= cap) { - cap *= 2; - tmp = krealloc(data, cap * sizeof(*data), GFP_KERNEL); - if (!tmp) { - ret = -ENOMEM; - goto exit; - } - data = tmp; - } - } - - if (!count) - goto exit; - *tkns = kmemdup(data, count * sizeof(*data), GFP_KERNEL); - if (*tkns == NULL) { - ret = -ENOMEM; - goto exit; - } - *num_tkns = count; - -exit: - kfree(data); - return ret; -} - -static int tokenize_input(const char __user *from, size_t count, - loff_t *ppos, u32 **tkns, size_t *num_tkns) -{ - char *buf; - int ret; - - buf = kmalloc(count + 1, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - ret = simple_write_to_buffer(buf, count, ppos, from, count); - if (ret != count) { - ret = ret >= 0 ? -EIO : ret; - goto exit; - } - - buf[count] = '\0'; - ret = strsplit_u32((char **)&buf, ",", tkns, num_tkns); -exit: - kfree(buf); - return ret; -} - -static ssize_t probe_points_read(struct file *file, - char __user *to, size_t count, loff_t *ppos) -{ - struct snd_sof_dfsentry *dfse = file->private_data; - struct snd_sof_dev *sdev = dfse->sdev; - struct sof_probe_point_desc *desc; - size_t num_desc, len = 0; - char *buf; - int i, ret; - - if (sdev->extractor_stream_tag == SOF_PROBE_INVALID_NODE_ID) { - dev_warn(sdev->dev, "no extractor stream running\n"); - return -ENOENT; - } - - buf = kzalloc(PAGE_SIZE, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - ret = sof_ipc_probe_points_info(sdev, &desc, &num_desc); - if (ret < 0) - goto exit; - - for (i = 0; i < num_desc; i++) { - ret = snprintf(buf + len, PAGE_SIZE - len, - "Id: %#010x Purpose: %d Node id: %#x\n", - desc[i].buffer_id, desc[i].purpose, desc[i].stream_tag); - if (ret < 0) - goto free_desc; - len += ret; - } - - ret = simple_read_from_buffer(to, count, ppos, buf, len); -free_desc: - kfree(desc); -exit: - kfree(buf); - return ret; -} - -static ssize_t probe_points_write(struct file *file, - const char __user *from, size_t count, loff_t *ppos) -{ - struct snd_sof_dfsentry *dfse = file->private_data; - struct snd_sof_dev *sdev = dfse->sdev; - struct sof_probe_point_desc *desc; - size_t num_tkns, bytes; - u32 *tkns; - int ret; - - if (sdev->extractor_stream_tag == SOF_PROBE_INVALID_NODE_ID) { - dev_warn(sdev->dev, "no extractor stream running\n"); - return -ENOENT; - } - - ret = tokenize_input(from, count, ppos, &tkns, &num_tkns); - if (ret < 0) - return ret; - bytes = sizeof(*tkns) * num_tkns; - if (!num_tkns || (bytes % sizeof(*desc))) { - ret = -EINVAL; - goto exit; - } - - desc = (struct sof_probe_point_desc *)tkns; - ret = sof_ipc_probe_points_add(sdev, - desc, bytes / sizeof(*desc)); - if (!ret) - ret = count; -exit: - kfree(tkns); - return ret; -} - -static const struct file_operations probe_points_fops = { - .open = simple_open, - .read = probe_points_read, - .write = probe_points_write, - .llseek = default_llseek, -}; - -static ssize_t probe_points_remove_write(struct file *file, - const char __user *from, size_t count, loff_t *ppos) -{ - struct snd_sof_dfsentry *dfse = file->private_data; - struct snd_sof_dev *sdev = dfse->sdev; - size_t num_tkns; - u32 *tkns; - int ret; - - if (sdev->extractor_stream_tag == SOF_PROBE_INVALID_NODE_ID) { - dev_warn(sdev->dev, "no extractor stream running\n"); - return -ENOENT; - } - - ret = tokenize_input(from, count, ppos, &tkns, &num_tkns); - if (ret < 0) - return ret; - if (!num_tkns) { - ret = -EINVAL; - goto exit; - } - - ret = sof_ipc_probe_points_remove(sdev, tkns, num_tkns); - if (!ret) - ret = count; -exit: - kfree(tkns); - return ret; -} - -static const struct file_operations probe_points_remove_fops = { - .open = simple_open, - .write = probe_points_remove_write, - .llseek = default_llseek, -}; - -static int snd_sof_debugfs_probe_item(struct snd_sof_dev *sdev, - const char *name, mode_t mode, - const struct file_operations *fops) -{ - struct snd_sof_dfsentry *dfse; - - dfse = devm_kzalloc(sdev->dev, sizeof(*dfse), GFP_KERNEL); - if (!dfse) - return -ENOMEM; - - dfse->type = SOF_DFSENTRY_TYPE_BUF; - dfse->sdev = sdev; - - debugfs_create_file(name, mode, sdev->debugfs_root, dfse, fops); - /* add to dfsentry list */ - list_add(&dfse->list, &sdev->dfsentry_list); - - return 0; -} -#endif - static ssize_t sof_dfsentry_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) { @@ -569,17 +354,6 @@ int snd_sof_dbg_init(struct snd_sof_dev *sdev) return err; } -#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_PROBES) - err = snd_sof_debugfs_probe_item(sdev, "probe_points", - 0644, &probe_points_fops); - if (err < 0) - return err; - err = snd_sof_debugfs_probe_item(sdev, "probe_points_remove", - 0200, &probe_points_remove_fops); - if (err < 0) - return err; -#endif - return 0; } EXPORT_SYMBOL_GPL(snd_sof_dbg_init); |