| /* Bluetooth HCI driver model support. */ |
| |
| #include <linux/module.h> |
| |
| #include <net/bluetooth/bluetooth.h> |
| #include <net/bluetooth/hci_core.h> |
| |
| static struct class *bt_class; |
| |
| static inline char *link_typetostr(int type) |
| { |
| switch (type) { |
| case ACL_LINK: |
| return "ACL"; |
| case SCO_LINK: |
| return "SCO"; |
| case ESCO_LINK: |
| return "eSCO"; |
| case LE_LINK: |
| return "LE"; |
| default: |
| return "UNKNOWN"; |
| } |
| } |
| |
| static ssize_t show_link_type(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct hci_conn *conn = to_hci_conn(dev); |
| return sprintf(buf, "%s\n", link_typetostr(conn->type)); |
| } |
| |
| static ssize_t show_link_address(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct hci_conn *conn = to_hci_conn(dev); |
| return sprintf(buf, "%pMR\n", &conn->dst); |
| } |
| |
| #define LINK_ATTR(_name, _mode, _show, _store) \ |
| struct device_attribute link_attr_##_name = __ATTR(_name, _mode, _show, _store) |
| |
| static LINK_ATTR(type, S_IRUGO, show_link_type, NULL); |
| static LINK_ATTR(address, S_IRUGO, show_link_address, NULL); |
| |
| static struct attribute *bt_link_attrs[] = { |
| &link_attr_type.attr, |
| &link_attr_address.attr, |
| NULL |
| }; |
| |
| static struct attribute_group bt_link_group = { |
| .attrs = bt_link_attrs, |
| }; |
| |
| static const struct attribute_group *bt_link_groups[] = { |
| &bt_link_group, |
| NULL |
| }; |
| |
| static void bt_link_release(struct device *dev) |
| { |
| struct hci_conn *conn = to_hci_conn(dev); |
| kfree(conn); |
| } |
| |
| static struct device_type bt_link = { |
| .name = "link", |
| .groups = bt_link_groups, |
| .release = bt_link_release, |
| }; |
| |
| /* |
| * The rfcomm tty device will possibly retain even when conn |
| * is down, and sysfs doesn't support move zombie device, |
| * so we should move the device before conn device is destroyed. |
| */ |
| static int __match_tty(struct device *dev, void *data) |
| { |
| return !strncmp(dev_name(dev), "rfcomm", 6); |
| } |
| |
| void hci_conn_init_sysfs(struct hci_conn *conn) |
| { |
| struct hci_dev *hdev = conn->hdev; |
| |
| BT_DBG("conn %p", conn); |
| |
| conn->dev.type = &bt_link; |
| conn->dev.class = bt_class; |
| conn->dev.parent = &hdev->dev; |
| |
| device_initialize(&conn->dev); |
| } |
| |
| void hci_conn_add_sysfs(struct hci_conn *conn) |
| { |
| struct hci_dev *hdev = conn->hdev; |
| |
| BT_DBG("conn %p", conn); |
| |
| dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle); |
| |
| if (device_add(&conn->dev) < 0) { |
| BT_ERR("Failed to register connection device"); |
| return; |
| } |
| |
| hci_dev_hold(hdev); |
| } |
| |
| void hci_conn_del_sysfs(struct hci_conn *conn) |
| { |
| struct hci_dev *hdev = conn->hdev; |
| |
| if (!device_is_registered(&conn->dev)) |
| return; |
| |
| while (1) { |
| struct device *dev; |
| |
| dev = device_find_child(&conn->dev, NULL, __match_tty); |
| if (!dev) |
| break; |
| device_move(dev, NULL, DPM_ORDER_DEV_LAST); |
| put_device(dev); |
| } |
| |
| device_del(&conn->dev); |
| |
| hci_dev_put(hdev); |
| } |
| |
| static inline char *host_bustostr(int bus) |
| { |
| switch (bus) { |
| case HCI_VIRTUAL: |
| return "VIRTUAL"; |
| case HCI_USB: |
| return "USB"; |
| case HCI_PCCARD: |
| return "PCCARD"; |
| case HCI_UART: |
| return "UART"; |
| case HCI_RS232: |
| return "RS232"; |
| case HCI_PCI: |
| return "PCI"; |
| case HCI_SDIO: |
| return "SDIO"; |
| default: |
| return "UNKNOWN"; |
| } |
| } |
| |
| static inline char *host_typetostr(int type) |
| { |
| switch (type) { |
| case HCI_BREDR: |
| return "BR/EDR"; |
| case HCI_AMP: |
| return "AMP"; |
| default: |
| return "UNKNOWN"; |
| } |
| } |
| |
| static ssize_t show_bus(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct hci_dev *hdev = to_hci_dev(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 = to_hci_dev(dev); |
| return sprintf(buf, "%s\n", host_typetostr(hdev->dev_type)); |
| } |
| |
| static ssize_t show_name(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct hci_dev *hdev = to_hci_dev(dev); |
| char name[HCI_MAX_NAME_LENGTH + 1]; |
| int i; |
| |
| for (i = 0; i < HCI_MAX_NAME_LENGTH; i++) |
| name[i] = hdev->dev_name[i]; |
| |
| name[HCI_MAX_NAME_LENGTH] = '\0'; |
| return sprintf(buf, "%s\n", name); |
| } |
| |
| static ssize_t show_class(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct hci_dev *hdev = to_hci_dev(dev); |
| return sprintf(buf, "0x%.2x%.2x%.2x\n", hdev->dev_class[2], |
| hdev->dev_class[1], hdev->dev_class[0]); |
| } |
| |
| static ssize_t show_address(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct hci_dev *hdev = to_hci_dev(dev); |
| return sprintf(buf, "%pMR\n", &hdev->bdaddr); |
| } |
| |
| static ssize_t show_manufacturer(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct hci_dev *hdev = to_hci_dev(dev); |
| return sprintf(buf, "%d\n", hdev->manufacturer); |
| } |
| |
| static ssize_t show_hci_version(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct hci_dev *hdev = to_hci_dev(dev); |
| return sprintf(buf, "%d\n", hdev->hci_ver); |
| } |
| |
| static ssize_t show_hci_revision(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct hci_dev *hdev = to_hci_dev(dev); |
| return sprintf(buf, "%d\n", hdev->hci_rev); |
| } |
| |
| 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); |
| static DEVICE_ATTR(address, S_IRUGO, show_address, 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 struct attribute *bt_host_attrs[] = { |
| &dev_attr_bus.attr, |
| &dev_attr_type.attr, |
| &dev_attr_name.attr, |
| &dev_attr_class.attr, |
| &dev_attr_address.attr, |
| &dev_attr_manufacturer.attr, |
| &dev_attr_hci_version.attr, |
| &dev_attr_hci_revision.attr, |
| NULL |
| }; |
| |
| static struct attribute_group bt_host_group = { |
| .attrs = bt_host_attrs, |
| }; |
| |
| static const struct attribute_group *bt_host_groups[] = { |
| &bt_host_group, |
| NULL |
| }; |
| |
| static void bt_host_release(struct device *dev) |
| { |
| struct hci_dev *hdev = to_hci_dev(dev); |
| kfree(hdev); |
| module_put(THIS_MODULE); |
| } |
| |
| static struct device_type bt_host = { |
| .name = "host", |
| .groups = bt_host_groups, |
| .release = bt_host_release, |
| }; |
| |
| void hci_init_sysfs(struct hci_dev *hdev) |
| { |
| struct device *dev = &hdev->dev; |
| |
| dev->type = &bt_host; |
| dev->class = bt_class; |
| |
| __module_get(THIS_MODULE); |
| device_initialize(dev); |
| } |
| |
| int __init bt_sysfs_init(void) |
| { |
| bt_class = class_create(THIS_MODULE, "bluetooth"); |
| |
| return PTR_ERR_OR_ZERO(bt_class); |
| } |
| |
| void bt_sysfs_cleanup(void) |
| { |
| class_destroy(bt_class); |
| } |