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/* Bluetooth HCI driver model support. */
#include <linux/kernel.h>
#include <linux/init.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#ifndef CONFIG_BT_HCI_CORE_DEBUG
#undef BT_DBG
#define BT_DBG(D...)
#endif
static ssize_t show_name(struct class_device *cdev, char *buf)
{
struct hci_dev *hdev = class_get_devdata(cdev);
return sprintf(buf, "%s\n", hdev->name);
}
static ssize_t show_type(struct class_device *cdev, char *buf)
{
struct hci_dev *hdev = class_get_devdata(cdev);
return sprintf(buf, "%d\n", hdev->type);
}
static ssize_t show_address(struct class_device *cdev, char *buf)
{
struct hci_dev *hdev = class_get_devdata(cdev);
bdaddr_t bdaddr;
baswap(&bdaddr, &hdev->bdaddr);
return sprintf(buf, "%s\n", batostr(&bdaddr));
}
static ssize_t show_flags(struct class_device *cdev, char *buf)
{
struct hci_dev *hdev = class_get_devdata(cdev);
return sprintf(buf, "0x%lx\n", hdev->flags);
}
static ssize_t show_inquiry_cache(struct class_device *cdev, char *buf)
{
struct hci_dev *hdev = class_get_devdata(cdev);
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 %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, e->timestamp);
}
hci_dev_unlock_bh(hdev);
return n;
}
static ssize_t show_idle_timeout(struct class_device *cdev, char *buf)
{
struct hci_dev *hdev = class_get_devdata(cdev);
return sprintf(buf, "%d\n", hdev->idle_timeout);
}
static ssize_t store_idle_timeout(struct class_device *cdev, const char *buf, size_t count)
{
struct hci_dev *hdev = class_get_devdata(cdev);
char *ptr;
__u32 val;
val = simple_strtoul(buf, &ptr, 10);
if (ptr == buf)
return -EINVAL;
if (val != 0 && (val < 500 || val > 3600000))
return -EINVAL;
hdev->idle_timeout = val;
return count;
}
static ssize_t show_sniff_max_interval(struct class_device *cdev, char *buf)
{
struct hci_dev *hdev = class_get_devdata(cdev);
return sprintf(buf, "%d\n", hdev->sniff_max_interval);
}
static ssize_t store_sniff_max_interval(struct class_device *cdev, const char *buf, size_t count)
{
struct hci_dev *hdev = class_get_devdata(cdev);
char *ptr;
__u16 val;
val = simple_strtoul(buf, &ptr, 10);
if (ptr == buf)
return -EINVAL;
if (val < 0x0002 || val > 0xFFFE || val % 2)
return -EINVAL;
if (val < hdev->sniff_min_interval)
return -EINVAL;
hdev->sniff_max_interval = val;
return count;
}
static ssize_t show_sniff_min_interval(struct class_device *cdev, char *buf)
{
struct hci_dev *hdev = class_get_devdata(cdev);
return sprintf(buf, "%d\n", hdev->sniff_min_interval);
}
static ssize_t store_sniff_min_interval(struct class_device *cdev, const char *buf, size_t count)
{
struct hci_dev *hdev = class_get_devdata(cdev);
char *ptr;
__u16 val;
val = simple_strtoul(buf, &ptr, 10);
if (ptr == buf)
return -EINVAL;
if (val < 0x0002 || val > 0xFFFE || val % 2)
return -EINVAL;
if (val > hdev->sniff_max_interval)
return -EINVAL;
hdev->sniff_min_interval = val;
return count;
}
static CLASS_DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
static CLASS_DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
static CLASS_DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
static CLASS_DEVICE_ATTR(flags, S_IRUGO, show_flags, NULL);
static CLASS_DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL);
static CLASS_DEVICE_ATTR(idle_timeout, S_IRUGO | S_IWUSR,
show_idle_timeout, store_idle_timeout);
static CLASS_DEVICE_ATTR(sniff_max_interval, S_IRUGO | S_IWUSR,
show_sniff_max_interval, store_sniff_max_interval);
static CLASS_DEVICE_ATTR(sniff_min_interval, S_IRUGO | S_IWUSR,
show_sniff_min_interval, store_sniff_min_interval);
static struct class_device_attribute *bt_attrs[] = {
&class_device_attr_name,
&class_device_attr_type,
&class_device_attr_address,
&class_device_attr_flags,
&class_device_attr_inquiry_cache,
&class_device_attr_idle_timeout,
&class_device_attr_sniff_max_interval,
&class_device_attr_sniff_min_interval,
NULL
};
#ifdef CONFIG_HOTPLUG
static int bt_uevent(struct class_device *cdev, char **envp, int num_envp, char *buf, int size)
{
struct hci_dev *hdev = class_get_devdata(cdev);
int n, i = 0;
envp[i++] = buf;
n = snprintf(buf, size, "INTERFACE=%s", hdev->name) + 1;
buf += n;
size -= n;
if ((size <= 0) || (i >= num_envp))
return -ENOMEM;
envp[i] = NULL;
return 0;
}
#endif
static void bt_release(struct class_device *cdev)
{
struct hci_dev *hdev = class_get_devdata(cdev);
kfree(hdev);
}
struct class bt_class = {
.name = "bluetooth",
.release = bt_release,
#ifdef CONFIG_HOTPLUG
.uevent = bt_uevent,
#endif
};
EXPORT_SYMBOL_GPL(bt_class);
int hci_register_sysfs(struct hci_dev *hdev)
{
struct class_device *cdev = &hdev->class_dev;
unsigned int i;
int err;
BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
cdev->class = &bt_class;
class_set_devdata(cdev, hdev);
strlcpy(cdev->class_id, hdev->name, BUS_ID_SIZE);
err = class_device_register(cdev);
if (err < 0)
return err;
for (i = 0; bt_attrs[i]; i++)
class_device_create_file(cdev, bt_attrs[i]);
return 0;
}
void hci_unregister_sysfs(struct hci_dev *hdev)
{
struct class_device * cdev = &hdev->class_dev;
BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
class_device_del(cdev);
}
int __init bt_sysfs_init(void)
{
return class_register(&bt_class);
}
void __exit bt_sysfs_cleanup(void)
{
class_unregister(&bt_class);
}
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