diff options
Diffstat (limited to 'drivers/staging/cw1200/debug.c')
| -rw-r--r-- | drivers/staging/cw1200/debug.c | 52 |
1 files changed, 51 insertions, 1 deletions
diff --git a/drivers/staging/cw1200/debug.c b/drivers/staging/cw1200/debug.c index 46db83316d5..3da603ac87d 100644 --- a/drivers/staging/cw1200/debug.c +++ b/drivers/staging/cw1200/debug.c @@ -493,6 +493,50 @@ static const struct file_operations fops_wsm_dumps = { .llseek = default_llseek, }; +#if defined(CONFIG_CW1200_WSM_DUMPS_SHORT) +static ssize_t cw1200_short_dump_read(struct file *file, + char __user *user_buf, size_t count, loff_t *ppos) +{ + struct cw1200_common *priv = file->private_data; + char buf[20]; + size_t size = 0; + + sprintf(buf, "Size: %u\n", priv->wsm_dump_max_size); + size = strlen(buf); + + return simple_read_from_buffer(user_buf, count, ppos, + buf, size); +} + +static ssize_t cw1200_short_dump_write(struct file *file, + const char __user *user_buf, size_t count, loff_t *ppos) +{ + struct cw1200_common *priv = file->private_data; + char buf[20]; + unsigned long dump_size = 0; + + if (!count || count > 20) + return -EINVAL; + if (copy_from_user(buf, user_buf, count)) + return -EFAULT; + + if (kstrtoul(buf, 10, &dump_size)) + return -EINVAL; + printk(KERN_ERR "%s get %lu\n", __func__, dump_size); + + priv->wsm_dump_max_size = dump_size; + + return count; +} + +static const struct file_operations fops_short_dump = { + .open = cw1200_generic_open, + .write = cw1200_short_dump_write, + .read = cw1200_short_dump_read, + .llseek = default_llseek, +}; +#endif /* CONFIG_CW1200_WSM_DUMPS_SHORT */ + int cw1200_debug_init(struct cw1200_common *priv) { int ret = -ENOMEM; @@ -529,6 +573,12 @@ int cw1200_debug_init(struct cw1200_common *priv) priv, &fops_wsm_dumps)) goto err; +#if defined(CONFIG_CW1200_WSM_DUMPS_SHORT) + if (!debugfs_create_file("wsm_dump_size", S_IRUSR | S_IWUSR, + d->debugfs_phy, priv, &fops_short_dump)) + goto err; +#endif /* CONFIG_CW1200_WSM_DUMPS_SHORT */ + ret = cw1200_itp_init(priv); if (ret) goto err; @@ -550,7 +600,7 @@ void cw1200_debug_release(struct cw1200_common *priv) priv->debug = NULL; kfree(d); } - } +} int cw1200_print_fw_version(struct cw1200_common *priv, u8 *buf, size_t len) { |