diff options
Diffstat (limited to 'net/bluetooth/hci_sysfs.c')
| -rw-r--r-- | net/bluetooth/hci_sysfs.c | 122 |
1 files changed, 87 insertions, 35 deletions
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c index 2bc6f6a8de68..1a79a6c7e30e 100644 --- a/net/bluetooth/hci_sysfs.c +++ b/net/bluetooth/hci_sysfs.c @@ -2,6 +2,7 @@ #include <linux/kernel.h> #include <linux/init.h> +#include <linux/debugfs.h> #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> @@ -9,6 +10,9 @@ struct class *bt_class = NULL; EXPORT_SYMBOL_GPL(bt_class); +struct dentry *bt_debugfs = NULL; +EXPORT_SYMBOL_GPL(bt_debugfs); + static struct workqueue_struct *bt_workq; static inline char *link_typetostr(int type) @@ -166,9 +170,9 @@ void hci_conn_del_sysfs(struct hci_conn *conn) queue_work(bt_workq, &conn->work_del); } -static inline char *host_typetostr(int type) +static inline char *host_bustostr(int bus) { - switch (type) { + switch (bus) { case HCI_VIRTUAL: return "VIRTUAL"; case HCI_USB: @@ -188,10 +192,28 @@ static inline char *host_typetostr(int type) } } +static inline char *host_typetostr(int type) +{ + switch (type) { + case HCI_BREDR: + return "BR/EDR"; + case HCI_80211: + return "802.11"; + default: + return "UNKNOWN"; + } +} + +static ssize_t show_bus(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct hci_dev *hdev = dev_get_drvdata(dev); + return sprintf(buf, "%s\n", host_bustostr(hdev->bus)); +} + static ssize_t show_type(struct device *dev, struct device_attribute *attr, char *buf) { struct hci_dev *hdev = dev_get_drvdata(dev); - return sprintf(buf, "%s\n", host_typetostr(hdev->type)); + return sprintf(buf, "%s\n", host_typetostr(hdev->dev_type)); } static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf) @@ -251,32 +273,6 @@ static ssize_t show_hci_revision(struct device *dev, struct device_attribute *at return sprintf(buf, "%d\n", hdev->hci_rev); } -static ssize_t show_inquiry_cache(struct device *dev, struct device_attribute *attr, char *buf) -{ - struct hci_dev *hdev = dev_get_drvdata(dev); - struct inquiry_cache *cache = &hdev->inq_cache; - struct inquiry_entry *e; - int n = 0; - - hci_dev_lock_bh(hdev); - - for (e = cache->list; e; e = e->next) { - struct inquiry_data *data = &e->data; - bdaddr_t bdaddr; - baswap(&bdaddr, &data->bdaddr); - n += sprintf(buf + n, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n", - batostr(&bdaddr), - data->pscan_rep_mode, data->pscan_period_mode, - data->pscan_mode, data->dev_class[2], - data->dev_class[1], data->dev_class[0], - __le16_to_cpu(data->clock_offset), - data->rssi, data->ssp_mode, e->timestamp); - } - - hci_dev_unlock_bh(hdev); - return n; -} - static ssize_t show_idle_timeout(struct device *dev, struct device_attribute *attr, char *buf) { struct hci_dev *hdev = dev_get_drvdata(dev); @@ -355,6 +351,7 @@ static ssize_t store_sniff_min_interval(struct device *dev, struct device_attrib return count; } +static DEVICE_ATTR(bus, S_IRUGO, show_bus, NULL); static DEVICE_ATTR(type, S_IRUGO, show_type, NULL); static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); static DEVICE_ATTR(class, S_IRUGO, show_class, NULL); @@ -363,7 +360,6 @@ static DEVICE_ATTR(features, S_IRUGO, show_features, NULL); static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL); static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL); static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL); -static DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL); static DEVICE_ATTR(idle_timeout, S_IRUGO | S_IWUSR, show_idle_timeout, store_idle_timeout); @@ -373,6 +369,7 @@ static DEVICE_ATTR(sniff_min_interval, S_IRUGO | S_IWUSR, show_sniff_min_interval, store_sniff_min_interval); static struct attribute *bt_host_attrs[] = { + &dev_attr_bus.attr, &dev_attr_type.attr, &dev_attr_name.attr, &dev_attr_class.attr, @@ -381,7 +378,6 @@ static struct attribute *bt_host_attrs[] = { &dev_attr_manufacturer.attr, &dev_attr_hci_version.attr, &dev_attr_hci_revision.attr, - &dev_attr_inquiry_cache.attr, &dev_attr_idle_timeout.attr, &dev_attr_sniff_max_interval.attr, &dev_attr_sniff_min_interval.attr, @@ -409,12 +405,52 @@ static struct device_type bt_host = { .release = bt_host_release, }; +static int inquiry_cache_open(struct inode *inode, struct file *file) +{ + file->private_data = inode->i_private; + return 0; +} + +static ssize_t inquiry_cache_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct hci_dev *hdev = file->private_data; + struct inquiry_cache *cache = &hdev->inq_cache; + struct inquiry_entry *e; + char buf[4096]; + int n = 0; + + hci_dev_lock_bh(hdev); + + for (e = cache->list; e; e = e->next) { + struct inquiry_data *data = &e->data; + bdaddr_t bdaddr; + baswap(&bdaddr, &data->bdaddr); + n += sprintf(buf + n, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n", + batostr(&bdaddr), + data->pscan_rep_mode, data->pscan_period_mode, + data->pscan_mode, data->dev_class[2], + data->dev_class[1], data->dev_class[0], + __le16_to_cpu(data->clock_offset), + data->rssi, data->ssp_mode, e->timestamp); + } + + hci_dev_unlock_bh(hdev); + + return simple_read_from_buffer(userbuf, count, ppos, buf, n); +} + +static const struct file_operations inquiry_cache_fops = { + .open = inquiry_cache_open, + .read = inquiry_cache_read, +}; + int hci_register_sysfs(struct hci_dev *hdev) { struct device *dev = &hdev->dev; int err; - BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type); + BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus); dev->type = &bt_host; dev->class = bt_class; @@ -428,12 +464,24 @@ int hci_register_sysfs(struct hci_dev *hdev) if (err < 0) return err; + if (!bt_debugfs) + return 0; + + hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs); + if (!hdev->debugfs) + return 0; + + debugfs_create_file("inquiry_cache", 0444, hdev->debugfs, + hdev, &inquiry_cache_fops); + return 0; } void hci_unregister_sysfs(struct hci_dev *hdev) { - BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type); + BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus); + + debugfs_remove_recursive(hdev->debugfs); device_del(&hdev->dev); } @@ -444,6 +492,8 @@ int __init bt_sysfs_init(void) if (!bt_workq) return -ENOMEM; + bt_debugfs = debugfs_create_dir("bluetooth", NULL); + bt_class = class_create(THIS_MODULE, "bluetooth"); if (IS_ERR(bt_class)) { destroy_workqueue(bt_workq); @@ -455,7 +505,9 @@ int __init bt_sysfs_init(void) void bt_sysfs_cleanup(void) { - destroy_workqueue(bt_workq); - class_destroy(bt_class); + + debugfs_remove_recursive(bt_debugfs); + + destroy_workqueue(bt_workq); } |