--- zzzz-none-000/linux-3.10.107/net/bluetooth/hci_sysfs.c 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/net/bluetooth/hci_sysfs.c 2021-02-04 17:41:59.000000000 +0000 @@ -1,17 +1,12 @@ /* Bluetooth HCI driver model support. */ -#include #include -#include #include #include static struct class *bt_class; -struct dentry *bt_debugfs; -EXPORT_SYMBOL_GPL(bt_debugfs); - static inline char *link_typetostr(int type) { switch (type) { @@ -42,40 +37,19 @@ return sprintf(buf, "%pMR\n", &conn->dst); } -static ssize_t show_link_features(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hci_conn *conn = to_hci_conn(dev); - - return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n", - conn->features[0][0], conn->features[0][1], - conn->features[0][2], conn->features[0][3], - conn->features[0][4], conn->features[0][5], - conn->features[0][6], conn->features[0][7]); -} - #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 LINK_ATTR(features, S_IRUGO, show_link_features, NULL); static struct attribute *bt_link_attrs[] = { &link_attr_type.attr, &link_attr_address.attr, - &link_attr_features.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 -}; +ATTRIBUTE_GROUPS(bt_link); static void bt_link_release(struct device *dev) { @@ -150,28 +124,6 @@ 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) { @@ -184,13 +136,6 @@ } } -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) { @@ -212,14 +157,6 @@ 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) { @@ -227,161 +164,18 @@ return sprintf(buf, "%pMR\n", &hdev->bdaddr); } -static ssize_t show_features(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hci_dev *hdev = to_hci_dev(dev); - - return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n", - hdev->features[0][0], hdev->features[0][1], - hdev->features[0][2], hdev->features[0][3], - hdev->features[0][4], hdev->features[0][5], - hdev->features[0][6], hdev->features[0][7]); -} - -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 ssize_t show_idle_timeout(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hci_dev *hdev = to_hci_dev(dev); - return sprintf(buf, "%d\n", hdev->idle_timeout); -} - -static ssize_t store_idle_timeout(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct hci_dev *hdev = to_hci_dev(dev); - unsigned int val; - int rv; - - rv = kstrtouint(buf, 0, &val); - if (rv < 0) - return rv; - - if (val != 0 && (val < 500 || val > 3600000)) - return -EINVAL; - - hdev->idle_timeout = val; - - return count; -} - -static ssize_t show_sniff_max_interval(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hci_dev *hdev = to_hci_dev(dev); - return sprintf(buf, "%d\n", hdev->sniff_max_interval); -} - -static ssize_t store_sniff_max_interval(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct hci_dev *hdev = to_hci_dev(dev); - u16 val; - int rv; - - rv = kstrtou16(buf, 0, &val); - if (rv < 0) - return rv; - - if (val == 0 || val % 2 || val < hdev->sniff_min_interval) - return -EINVAL; - - hdev->sniff_max_interval = val; - - return count; -} - -static ssize_t show_sniff_min_interval(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hci_dev *hdev = to_hci_dev(dev); - return sprintf(buf, "%d\n", hdev->sniff_min_interval); -} - -static ssize_t store_sniff_min_interval(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct hci_dev *hdev = to_hci_dev(dev); - u16 val; - int rv; - - rv = kstrtou16(buf, 0, &val); - if (rv < 0) - return rv; - - if (val == 0 || val % 2 || val > hdev->sniff_max_interval) - return -EINVAL; - - hdev->sniff_min_interval = val; - - 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); static DEVICE_ATTR(address, S_IRUGO, show_address, NULL); -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(idle_timeout, S_IRUGO | S_IWUSR, - show_idle_timeout, store_idle_timeout); -static DEVICE_ATTR(sniff_max_interval, S_IRUGO | S_IWUSR, - show_sniff_max_interval, store_sniff_max_interval); -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, &dev_attr_address.attr, - &dev_attr_features.attr, - &dev_attr_manufacturer.attr, - &dev_attr_hci_version.attr, - &dev_attr_hci_revision.attr, - &dev_attr_idle_timeout.attr, - &dev_attr_sniff_max_interval.attr, - &dev_attr_sniff_min_interval.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 -}; +ATTRIBUTE_GROUPS(bt_host); static void bt_host_release(struct device *dev) { @@ -396,141 +190,6 @@ .release = bt_host_release, }; -static int inquiry_cache_show(struct seq_file *f, void *p) -{ - struct hci_dev *hdev = f->private; - struct discovery_state *cache = &hdev->discovery; - struct inquiry_entry *e; - - hci_dev_lock(hdev); - - list_for_each_entry(e, &cache->all, all) { - struct inquiry_data *data = &e->data; - seq_printf(f, "%pMR %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n", - &data->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(hdev); - - return 0; -} - -static int inquiry_cache_open(struct inode *inode, struct file *file) -{ - return single_open(file, inquiry_cache_show, inode->i_private); -} - -static const struct file_operations inquiry_cache_fops = { - .open = inquiry_cache_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int blacklist_show(struct seq_file *f, void *p) -{ - struct hci_dev *hdev = f->private; - struct bdaddr_list *b; - - hci_dev_lock(hdev); - - list_for_each_entry(b, &hdev->blacklist, list) - seq_printf(f, "%pMR\n", &b->bdaddr); - - hci_dev_unlock(hdev); - - return 0; -} - -static int blacklist_open(struct inode *inode, struct file *file) -{ - return single_open(file, blacklist_show, inode->i_private); -} - -static const struct file_operations blacklist_fops = { - .open = blacklist_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static void print_bt_uuid(struct seq_file *f, u8 *uuid) -{ - u32 data0, data5; - u16 data1, data2, data3, data4; - - data5 = get_unaligned_le32(uuid); - data4 = get_unaligned_le16(uuid + 4); - data3 = get_unaligned_le16(uuid + 6); - data2 = get_unaligned_le16(uuid + 8); - data1 = get_unaligned_le16(uuid + 10); - data0 = get_unaligned_le32(uuid + 12); - - seq_printf(f, "%.8x-%.4x-%.4x-%.4x-%.4x%.8x\n", - data0, data1, data2, data3, data4, data5); -} - -static int uuids_show(struct seq_file *f, void *p) -{ - struct hci_dev *hdev = f->private; - struct bt_uuid *uuid; - - hci_dev_lock(hdev); - - list_for_each_entry(uuid, &hdev->uuids, list) - print_bt_uuid(f, uuid->uuid); - - hci_dev_unlock(hdev); - - return 0; -} - -static int uuids_open(struct inode *inode, struct file *file) -{ - return single_open(file, uuids_show, inode->i_private); -} - -static const struct file_operations uuids_fops = { - .open = uuids_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int auto_accept_delay_set(void *data, u64 val) -{ - struct hci_dev *hdev = data; - - hci_dev_lock(hdev); - - hdev->auto_accept_delay = val; - - hci_dev_unlock(hdev); - - return 0; -} - -static int auto_accept_delay_get(void *data, u64 *val) -{ - struct hci_dev *hdev = data; - - hci_dev_lock(hdev); - - *val = hdev->auto_accept_delay; - - hci_dev_unlock(hdev); - - return 0; -} - -DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get, - auto_accept_delay_set, "%llu\n"); - void hci_init_sysfs(struct hci_dev *hdev) { struct device *dev = &hdev->dev; @@ -542,60 +201,14 @@ device_initialize(dev); } -int hci_add_sysfs(struct hci_dev *hdev) -{ - struct device *dev = &hdev->dev; - int err; - - BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus); - - dev_set_name(dev, "%s", hdev->name); - - err = device_add(dev); - 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); - - debugfs_create_file("blacklist", 0444, hdev->debugfs, - hdev, &blacklist_fops); - - debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops); - - debugfs_create_file("auto_accept_delay", 0444, hdev->debugfs, hdev, - &auto_accept_delay_fops); - return 0; -} - -void hci_del_sysfs(struct hci_dev *hdev) -{ - BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus); - - debugfs_remove_recursive(hdev->debugfs); - - device_del(&hdev->dev); -} - int __init bt_sysfs_init(void) { - bt_debugfs = debugfs_create_dir("bluetooth", NULL); - bt_class = class_create(THIS_MODULE, "bluetooth"); - return PTR_RET(bt_class); + return PTR_ERR_OR_ZERO(bt_class); } void bt_sysfs_cleanup(void) { class_destroy(bt_class); - - debugfs_remove_recursive(bt_debugfs); }