diff options
Diffstat (limited to 'drivers/bluetooth/btmrvl_debugfs.c')
| -rw-r--r-- | drivers/bluetooth/btmrvl_debugfs.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/bluetooth/btmrvl_debugfs.c b/drivers/bluetooth/btmrvl_debugfs.c index 023d35e3c7a7..1828ed8cae7a 100644 --- a/drivers/bluetooth/btmrvl_debugfs.c +++ b/drivers/bluetooth/btmrvl_debugfs.c @@ -167,6 +167,35 @@ static const struct file_operations btmrvl_hscmd_fops = { .llseek = default_llseek, }; +static ssize_t btmrvl_fwdump_write(struct file *file, const char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct btmrvl_private *priv = file->private_data; + char buf[16]; + bool result; + + memset(buf, 0, sizeof(buf)); + + if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) + return -EFAULT; + + if (strtobool(buf, &result)) + return -EINVAL; + + if (!result) + return -EINVAL; + + btmrvl_firmware_dump(priv); + + return count; +} + +static const struct file_operations btmrvl_fwdump_fops = { + .write = btmrvl_fwdump_write, + .open = simple_open, + .llseek = default_llseek, +}; + void btmrvl_debugfs_init(struct hci_dev *hdev) { struct btmrvl_private *priv = hci_get_drvdata(hdev); @@ -197,6 +226,8 @@ void btmrvl_debugfs_init(struct hci_dev *hdev) priv, &btmrvl_hscmd_fops); debugfs_create_file("hscfgcmd", 0644, dbg->config_dir, priv, &btmrvl_hscfgcmd_fops); + debugfs_create_file("fw_dump", 0200, dbg->config_dir, + priv, &btmrvl_fwdump_fops); dbg->status_dir = debugfs_create_dir("status", hdev->debugfs); debugfs_create_u8("curpsmode", 0444, dbg->status_dir, |