luckfox-pico-sdk/sysdrv/source/kernel/net/bluetooth/hci_sysfs.c
luckfox-eng29 8f34c2760d project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches.
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between
the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door
for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more
usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp:
Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for
compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem.
sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device
tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately.
sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick
boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades.
sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for
fastboot.

Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
2024-10-14 09:47:04 +08:00

123 lines
2.3 KiB
C

// SPDX-License-Identifier: GPL-2.0
/* 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 void bt_link_release(struct device *dev)
{
struct hci_conn *conn = to_hci_conn(dev);
kfree(conn);
}
static const struct device_type bt_link = {
.name = "link",
.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);
if (device_is_registered(&conn->dev))
return;
dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle);
if (device_add(&conn->dev) < 0) {
bt_dev_err(hdev, "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 void bt_host_release(struct device *dev)
{
struct hci_dev *hdev = to_hci_dev(dev);
if (hci_dev_test_flag(hdev, HCI_UNREGISTER))
hci_cleanup_dev(hdev);
kfree(hdev);
module_put(THIS_MODULE);
}
static const struct device_type bt_host = {
.name = "host",
.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);
}