CAPABILITY_VCO_RECALIBRATION,
CAPABILITY_EXTERNAL_PA_TX0,
CAPABILITY_EXTERNAL_PA_TX1,
+ CAPABILITY_RESTART_HW,
};
/*
return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_VCO_RECALIBRATION);
}
+static inline bool
+rt2x00_has_cap_restart_hw(struct rt2x00_dev *rt2x00dev)
+{
+ return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_RESTART_HW);
+}
+
/**
* rt2x00queue_map_txskb - Map a skb into DMA for TX purposes.
* @entry: Pointer to &struct queue_entry
* - chipset file
* - device state flags file
* - device capability flags file
+ * - hardware restart file
* - register folder
* - csr offset/value files
* - eeprom offset/value files
struct dentry *chipset_entry;
struct dentry *dev_flags;
struct dentry *cap_flags;
+ struct dentry *restart_hw;
struct dentry *register_folder;
struct dentry *csr_off_entry;
struct dentry *csr_val_entry;
.llseek = default_llseek,
};
+static ssize_t rt2x00debug_write_restart_hw(struct file *file,
+ const char __user *buf,
+ size_t length,
+ loff_t *offset)
+{
+ struct rt2x00debug_intf *intf = file->private_data;
+ struct rt2x00_dev *rt2x00dev = intf->rt2x00dev;
+ static unsigned long last_reset;
+
+ if (!rt2x00_has_cap_restart_hw(rt2x00dev))
+ return -EOPNOTSUPP;
+
+ if (time_before(jiffies, last_reset + msecs_to_jiffies(2000)))
+ return -EBUSY;
+
+ last_reset = jiffies;
+
+ ieee80211_restart_hw(rt2x00dev->hw);
+ return length;
+}
+
+static const struct file_operations rt2x00debug_restart_hw = {
+ .owner = THIS_MODULE,
+ .write = rt2x00debug_write_restart_hw,
+ .open = simple_open,
+ .llseek = generic_file_llseek,
+};
+
static struct dentry *rt2x00debug_create_file_driver(const char *name,
struct rt2x00debug_intf
*intf,
intf->driver_folder, intf,
&rt2x00debug_fop_cap_flags);
+ intf->restart_hw = debugfs_create_file("restart_hw", 0200,
+ intf->driver_folder, intf,
+ &rt2x00debug_restart_hw);
+
intf->register_folder =
debugfs_create_dir("register", intf->driver_folder);
debugfs_remove(intf->csr_off_entry);
debugfs_remove(intf->register_folder);
debugfs_remove(intf->dev_flags);
+ debugfs_remove(intf->restart_hw);
debugfs_remove(intf->cap_flags);
debugfs_remove(intf->chipset_entry);
debugfs_remove(intf->driver_entry);
{
int retval;
- if (test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags))
- return 0;
+ if (test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags)) {
+ /*
+ * This is special case for ieee80211_restart_hw(), otherwise
+ * mac80211 never call start() two times in row without stop();
+ */
+ rt2x00dev->ops->lib->pre_reset_hw(rt2x00dev);
+ rt2x00lib_stop(rt2x00dev);
+ }
/*
* If this is the first interface which is added,