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c57c77e446d9a552b537175453b838d0400ff41d
bes2600-dkms/bes2600/bes_chardev.c
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test0r ef24cdb891 bes2600: drop BES2600_WRITE_DPD_TO_FILE kernel_*() file paths 
bes_chardev.c carried three functions gated behind the
BES2600_WRITE_DPD_TO_FILE Kconfig/make-flag (default off):

  - bes2600_chrdev_write_dpd_data_to_file()
      filp_open(O_CREAT | O_TRUNC | O_RDWR) + kernel_write()
      writing a raw DPD calibration blob back to
      BES2600_DPD_PATH (default /data/cfg/bes2600_dpd.bin, an
      Android-AOSP path).

  - bes2600_chrdev_read_and_check_dpd_data()
      filp_open(O_RDONLY) + kernel_read() reading the DPD blob
      from either BES2600_DPD_GOLDEN_PATH (/data/cfg/…) or
      BES2600_DEFAULT_DPD_PATH (/lib/firmware/bes2600_dpd.bin),
      followed by a CRC/version sanity check.

  - bes2600_chrdev_dpd_is_vaild() (sic), the CRC/version helper
    used only by the read path.

Plus the bes_cdev.no_dpd field, its module_param, and two
intrusion sites in bes2600_chrdev_get_dpd_data() and
bes2600_chrdev_update_dpd_data() that invoke the above.

The Makefile defaults BES2600_WRITE_DPD_TO_FILE=n, so in a stock
build all of this is dead code. It is still a standing upstream
blocker for exactly the same reasons as the factory-txt write
path removed in the preceding patch:

  - filp_open() + kernel_read()/kernel_write() bypass the
    firmware-class abstraction and LSM-governed access control
    that apply to /lib/firmware/.
  - The write target /data/cfg/ is an Android AOSP convention
    that does not exist on a Linux distribution and cannot be
    created by the kernel anyway.
  - A runtime DPD re-calibration is intended to reduce TX EVM
    after temperature or aging drift; persisting the result via
    kernel_write() is fundamentally a userspace concern (debugfs
    dump + userspace tool is the expected route).

Remove the entire #ifdef BES2600_WRITE_DPD_TO_FILE block from
bes_chardev.c (including the inner #ifdef inside
bes2600_chrdev_read_and_check_dpd_data() guarding a
DPD_BIN_FILE_SIZE size check that only applied to the read-back-
its-own-write case), the no_dpd field and module_param, and the
two invocation sites. Drop the Kconfig/make-flag and the three
associated PATH macros from the Makefile. Net: -155 lines, no
remaining filp_open/kernel_read/kernel_write anywhere in
bes_chardev.c.

The in-memory DPD state path is unchanged: bes2600_chrdev_get_dpd_
buffer() still allocates a kmalloc'd buffer used by the firmware-
download path, bes2600_chrdev_update_dpd_data() still validates
the buffer's CRC and transitions bes2600_cdev.wait_state on
success, and bes2600_chrdev_free_dpd_data() still releases the
buffer on unload. Only the file-I/O side-channel is removed.

Signed-off-by: Markus Fritsche <fritsche.markus@gmail.com>
2026-04-24 08:55:10 +02:00

683 lines
17 KiB
C
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/*
* Mac80211 driver for BES2600 device
*
* Copyright (c) 2022, Bestechnic
* Author:
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include<linux/module.h>
#include <linux/init.h>
#include <linux/firmware.h>
#include <linux/etherdevice.h>
#include <linux/vmalloc.h>
#include <linux/random.h>
#include <linux/sched.h>
#include <linux/fs.h>
#include <linux/cdev.h>
#include <linux/atomic.h>
#include <linux/wait.h>
#include <linux/crc32.h>
#include <linux/version.h>
#include "bes2600.h"
#include "sbus.h"
#include "hwio.h"
#include "fwio.h"
#include "bes_chardev.h"
#include "tx_loop.h"
#include "bes_log.h"
enum wait_state {
BES2600_BOOT_WAIT_NONE = 0,
BES2600_BOOT_WAIT_PROBE_DONE,
BES2600_BOOT_WAIT_CLOSE,
};
enum bus_probe_state {
BES2600_BUS_PROBE_NONE = 0,
BES2600_BUS_PROBE_START,
BES2600_BUS_PROBE_OK,
BES2600_BUS_PROBE_TIMEOUT,
};
struct bes_cdev {
atomic_t num_proc;
wait_queue_head_t open_wq;
spinlock_t status_lock;
bool wifi_opened;
bool bt_opened;
bool bton_pending;
bool dpd_calied;
u8 *dpd_data;
u32 dpd_len;
enum wait_state wait_state;
wait_queue_head_t probe_done_wq;
const struct sbus_ops *sbus_ops;
struct sbus_priv *sbus_priv;
bool sig_mode;
int fw_type;
bool bus_error;
bool halt_dev;
struct delayed_work probe_timeout_work;
enum bus_probe_state bus_probe;
struct work_struct wifi_force_close_work;
enum pend_read_op read_flag;
enum wakeup_event wakeup_by_event; /* used to filter unwanted event wakeup reason report */
u16 wakeup_state; /* for userspace check wakeup reason */
wait_queue_head_t wakeup_reason_wq;
u16 src_port;
#ifdef BES2600_DUMP_FW_DPD_LOG
u8 *dpd_log;
u16 dpd_log_len;
#endif
};
struct bes2600_op_map {
char op[20]; // operation
int op_len; // operation length, used for effiency
int (*handler)(const char *cmd); // handler
};
static struct bes_cdev bes2600_cdev;
module_param_named(fw_type, bes2600_cdev.fw_type, int, 0644);
extern int bes2600_register_net_dev(struct sbus_priv *bus_priv);
extern int bes2600_unregister_net_dev(struct sbus_priv *bus_priv);
extern bool bes2600_is_net_dev_created(struct sbus_priv *bus_priv);
static bool bes2600_bootup_end(void)
{
bool end;
spin_lock(&bes2600_cdev.status_lock);
end = (bes2600_cdev.bus_probe == BES2600_BUS_PROBE_TIMEOUT ||
bes2600_cdev.sbus_priv != NULL ||
bes2600_cdev.bus_error);
spin_unlock(&bes2600_cdev.status_lock);
return end;
}
static int bes2600_chrdev_switch_subsys(int wake_flag, int subsys, bool active)
{
int ret = 0;
if (bes2600_cdev.sbus_priv == NULL)
return -EFAULT;
if (active) {
if (bes2600_cdev.sbus_ops->gpio_wake)
bes2600_cdev.sbus_ops->gpio_wake(bes2600_cdev.sbus_priv, wake_flag);
if (bes2600_cdev.sbus_ops->sbus_active)
ret = bes2600_cdev.sbus_ops->sbus_active(bes2600_cdev.sbus_priv, subsys);
if (bes2600_cdev.sbus_ops->gpio_sleep)
bes2600_cdev.sbus_ops->gpio_sleep(bes2600_cdev.sbus_priv, wake_flag);
} else {
if (bes2600_cdev.sbus_ops->gpio_wake)
bes2600_cdev.sbus_ops->gpio_wake(bes2600_cdev.sbus_priv, wake_flag);
if (bes2600_cdev.sbus_ops->sbus_deactive)
ret = bes2600_cdev.sbus_ops->sbus_deactive(bes2600_cdev.sbus_priv, subsys);
if (bes2600_cdev.sbus_ops->gpio_sleep)
bes2600_cdev.sbus_ops->gpio_sleep(bes2600_cdev.sbus_priv, wake_flag);
}
return ret;
}
static int bes2600_switch_wifi(bool on)
{
int ret = 0;
long status = 0;
if (bes2600_cdev.wifi_opened == on)
return 0;
if (on) {
if (bes2600_chrdev_check_system_close()) {
bes_devel("power up bes2600 when active wifi.\n");
/* reset bus error status when restart bes2600 */
spin_lock(&bes2600_cdev.status_lock);
bes2600_cdev.bus_error = false;
bes2600_cdev.halt_dev = false;
bes2600_cdev.bus_probe = BES2600_BUS_PROBE_NONE;
spin_unlock(&bes2600_cdev.status_lock);
/* power up bes2600, trigger system to execute probe function */
bes2600_cdev.wifi_opened = true;
bes2600_cdev.sbus_ops->power_switch(NULL, 1);
/* wait probe done event */
status = wait_event_timeout(bes2600_cdev.probe_done_wq,
bes2600_bootup_end(), HZ * 8);
WARN_ON(status <= 0);
ret = (status <= 0 || bes2600_chrdev_is_bus_error()) ? -1 : 0;
} else {
/* bes2600 is already powered up, we just need to create net device */
if (bes2600_cdev.sbus_priv) {
if (!bes2600_is_net_dev_created(bes2600_cdev.sbus_priv)) {
ret = bes2600_register_net_dev(bes2600_cdev.sbus_priv);
}
} else {
ret = -EFAULT;
}
}
} else {
if (bes2600_cdev.sbus_priv && bes2600_is_net_dev_created(bes2600_cdev.sbus_priv)) {
bes2600_unregister_net_dev(bes2600_cdev.sbus_priv);
}
}
if (!ret) {
bes2600_cdev.wifi_opened = on;
} else {
bes2600_cdev.wifi_opened = false;
if (on)
bes_info("open wifi failed\n");
}
return ret;
}
int bes2600_switch_bt(bool on)
{
int ret = 0;
long status = 0;
if (bes2600_cdev.bt_opened == on)
return 0;
if (on) {
if (bes2600_chrdev_check_system_close()) {
bes_devel("power up bes2600 when active bt.\n");
/* reset bus error status when restart bes2600 */
spin_lock(&bes2600_cdev.status_lock);
bes2600_cdev.bus_error = false;
bes2600_cdev.halt_dev = false;
bes2600_cdev.bus_probe = BES2600_BUS_PROBE_NONE;
spin_unlock(&bes2600_cdev.status_lock);
/* set opend state in advance */
bes2600_cdev.bt_opened = true;
bes2600_cdev.bton_pending = true;
/* power up bes2600, trigger system to execute probe function */
bes2600_cdev.sbus_ops->power_switch(NULL, 1);
/* wait bootup process end */
status = wait_event_timeout(bes2600_cdev.probe_done_wq,
bes2600_bootup_end(), HZ * 8);
WARN_ON(status <= 0);
/* check if there is a error when bootup */
ret = (status <= 0 || bes2600_chrdev_is_bus_error()) ? -1 : 0;
} else {
bes_info("enable BT\n");
ret = bes2600_chrdev_switch_subsys(GPIO_WAKE_FLAG_BT_ON, SUBSYSTEM_BT, true);
}
} else {
bes_info("disable BT\n");
bes2600_chrdev_switch_subsys(GPIO_WAKE_FLAG_BT_OFF, SUBSYSTEM_BT, false);
}
if (!ret) {
bes2600_cdev.bt_opened = on;
} else {
bes2600_cdev.bt_opened = false;
bes2600_cdev.bton_pending = false;
if (ret)
bes_info("open bt failed\n");
}
return ret;
}
#ifdef FW_DOWNLOAD_UART_DAEMON
#endif
static int bes2600_chrdev_check_system_close_internal(void)
{
return (bes2600_cdev.sbus_ops->power_switch != NULL &&
bes2600_cdev.fw_type == BES2600_FW_TYPE_WIFI_SIGNAL)
&&(bes2600_cdev.bt_opened == false)
&& (bes2600_cdev.wifi_opened == false);
}
const u8* bes2600_chrdev_get_dpd_data(u32 *len)
{
if (!bes2600_cdev.dpd_calied)
return NULL;
if (len)
*len = bes2600_cdev.dpd_len;
return bes2600_cdev.dpd_data;
}
u8* bes2600_chrdev_get_dpd_buffer(u32 size)
{
if (bes2600_cdev.dpd_data)
kfree(bes2600_cdev.dpd_data);
bes2600_cdev.dpd_data = kmalloc(size, GFP_KERNEL);
if (!bes2600_cdev.dpd_data) {
return NULL;
}
bes2600_cdev.dpd_len = DPD_BIN_SIZE;
return bes2600_cdev.dpd_data;
}
void bes2600_chrdev_free_dpd_data(void)
{
if (bes2600_cdev.dpd_data)
kfree(bes2600_cdev.dpd_data);
bes2600_cdev.dpd_data = NULL;
bes2600_cdev.dpd_len = 0;
}
int bes2600_chrdev_update_dpd_data(void)
{
u32 cal_crc = 0;
u32 dpd_crc = le32_to_cpup((__le32 *)(bes2600_cdev.dpd_data));
/* check if the dpd data is valid */
cal_crc ^= 0xffffffffL;
cal_crc = crc32_le(cal_crc, bes2600_cdev.dpd_data + 4, bes2600_cdev.dpd_len - 4);
cal_crc ^= 0xffffffffL;
if (cal_crc != dpd_crc) {
bes_err(
"bes2600 dpd data check failed, calc_crc:0x%08x dpd_crc: 0x%08x\n",
cal_crc, dpd_crc);
return -1;
}
bes_devel("bes2600 dpd cali pass.\n");
/* update dpd calibration and wait state */
spin_lock(&bes2600_cdev.status_lock);
bes2600_cdev.dpd_calied = true;
if (bes2600_chrdev_check_system_close_internal()) {
bes2600_cdev.wait_state = BES2600_BOOT_WAIT_CLOSE;
} else {
bes2600_cdev.wait_state = BES2600_BOOT_WAIT_PROBE_DONE;
}
spin_unlock(&bes2600_cdev.status_lock);
return 0;
}
#ifdef BES2600_DUMP_FW_DPD_LOG
void bes2600_free_dpd_log_buffer(void)
{
if (bes2600_cdev.dpd_log)
kfree(bes2600_cdev.dpd_log);
bes2600_cdev.dpd_log_len = 0;
bes2600_cdev.dpd_log = NULL;
}
u8* bes2600_alloc_dpd_log_buffer(u16 len)
{
bes2600_cdev.dpd_log_len = len;
if (bes2600_cdev.dpd_log)
kfree(bes2600_cdev.dpd_log);
bes2600_cdev.dpd_log = kzalloc(len, GFP_KERNEL);
if (!bes2600_cdev.dpd_log) {
bes2600_cdev.dpd_log_len = 0;
return NULL;
}
return bes2600_cdev.dpd_log;
}
void bes2600_get_dpd_log(char **data, size_t *len)
{
if (!bes2600_cdev.dpd_log) {
*data = NULL;
*len = 0;
} else {
*data = bes2600_cdev.dpd_log;
*len = (size_t)bes2600_cdev.dpd_log_len;
}
}
#endif /* BES2600_DUMP_FW_DPD_LOG */
void bes2600_chrdev_set_sbus_priv_data(struct sbus_priv *priv, bool error)
{
bes2600_cdev.sbus_priv = priv;
if (priv) {
if (bes2600_cdev.bton_pending) {
bes_devel("execute pending bt on operation.\n");
bes2600_chrdev_switch_subsys(GPIO_WAKE_FLAG_BT_ON, SUBSYSTEM_BT, true);
bes2600_cdev.bton_pending = false;
}
spin_lock(&bes2600_cdev.status_lock);
if (bes2600_cdev.wait_state == BES2600_BOOT_WAIT_PROBE_DONE) {
bes2600_cdev.wait_state = BES2600_BOOT_WAIT_NONE;
}
spin_unlock(&bes2600_cdev.status_lock);
bes_devel("wakup proc on wq of probe_done.\n");
} else {
spin_lock(&bes2600_cdev.status_lock);
bes2600_cdev.wait_state = BES2600_BOOT_WAIT_NONE;
bes2600_cdev.bus_error = error;
if (bes2600_cdev.bus_error) {
bes2600_cdev.wifi_opened = false;
bes2600_cdev.bt_opened = false;
bes2600_cdev.bton_pending = false;
bes2600_cdev.bus_probe = BES2600_BUS_PROBE_NONE;
}
spin_unlock(&bes2600_cdev.status_lock);
bes_devel("wakup proc on wq of disconnect_done.\n");
}
wake_up(&bes2600_cdev.probe_done_wq);
}
struct sbus_priv * bes2600_chrdev_get_sbus_priv_data(void)
{
return bes2600_cdev.sbus_priv;
}
int bes2600_chrdev_check_system_close(void)
{
bool sys_closed = false;
spin_lock(&bes2600_cdev.status_lock);
sys_closed = bes2600_chrdev_check_system_close_internal();
spin_unlock(&bes2600_cdev.status_lock);
return sys_closed;
}
int bes2600_chrdev_do_system_close(const struct sbus_ops *sbus_ops, struct sbus_priv *priv)
{
int ret = 0;
long status = 0;
if (!sbus_ops || !priv) {
bes_warn("abort power down device.\n");
return 0;
}
if (!sbus_ops->power_switch)
return 0;
bes_devel("power down bes2600.\n");
/* trigger system to execute disconnect function */
ret = sbus_ops->power_switch(priv, 0);
/* wait disconnect event */
status = wait_event_timeout(bes2600_cdev.probe_done_wq, (bes2600_cdev.sbus_priv == NULL), HZ * 3);
WARN_ON(status <= 0);
return ret;
}
bool bes2600_chrdev_is_wifi_opened(void)
{
bool wifi_opened = false;
spin_lock(&bes2600_cdev.status_lock);
wifi_opened = bes2600_cdev.wifi_opened;
spin_unlock(&bes2600_cdev.status_lock);
if (bes2600_cdev.fw_type == BES2600_FW_TYPE_WIFI_NO_SIGNAL)
return true;
else if (bes2600_cdev.fw_type == BES2600_FW_TYPE_BT)
return false;
else if (bes2600_cdev.fw_type == BES2600_FW_TYPE_WIFI_SIGNAL)
return wifi_opened;
return false;
}
bool bes2600_chrdev_is_bt_opened(void)
{
bool bt_opened = false;
spin_lock(&bes2600_cdev.status_lock);
bt_opened = bes2600_cdev.bt_opened;
spin_unlock(&bes2600_cdev.status_lock);
if (bes2600_cdev.fw_type == BES2600_FW_TYPE_WIFI_NO_SIGNAL)
return false;
else if (bes2600_cdev.fw_type == BES2600_FW_TYPE_BT)
return true;
else if (bes2600_cdev.fw_type == BES2600_FW_TYPE_WIFI_SIGNAL)
return bt_opened;
return false;
}
void bes2600_chrdev_wakeup_bt(void)
{
int ret = 0;
if (bes2600_cdev.bt_opened && bes2600_cdev.sbus_priv) {
bes_devel("wakeup bt in resume flow\n");
ret = bes2600_chrdev_switch_subsys(GPIO_WAKE_FLAG_BT_LP_ON, SUBSYSTEM_BT_LP, true);
if (ret)
bes_err("Wakeup BT fail in resume\n");
}
}
int bes2600_chrdev_get_fw_type(void)
{
return bes2600_cdev.fw_type;
}
bool bes2600_chrdev_is_signal_mode(void)
{
return bes2600_cdev.sig_mode;
}
bool bes2600_chrdev_is_bus_error(void)
{
bool error = false;
spin_lock(&bes2600_cdev.status_lock);
error = (bes2600_cdev.bus_error || bes2600_cdev.bus_probe != BES2600_BUS_PROBE_OK);
spin_unlock(&bes2600_cdev.status_lock);
return error;
}
void bes2600_chrdev_update_signal_mode(void)
{
if (bes2600_cdev.fw_type >= BES2600_FW_TYPE_MAX_NUM) {
bes2600_cdev.fw_type = BES2600_FW_TYPE_WIFI_SIGNAL;
bes_warn("unexpected fw type, switch to wifi signal mode\n");
}
if (bes2600_cdev.fw_type == BES2600_FW_TYPE_WIFI_SIGNAL) {
bes2600_cdev.sig_mode = true;
} else if ((bes2600_cdev.fw_type == BES2600_FW_TYPE_WIFI_NO_SIGNAL)
|| (bes2600_cdev.fw_type == BES2600_FW_TYPE_BT)) {
bes2600_cdev.sig_mode = false;
}
}
static void bes2600_chrdev_wifi_force_close_work(struct work_struct *work)
{
if (bes2600_chrdev_is_wifi_opened()) {
bes_devel("system exeception, force wifi down\n");
/* halt device if needed */
if (bes2600_cdev.halt_dev && bes2600_cdev.sbus_ops->halt_device) {
bes2600_cdev.sbus_ops->halt_device(bes2600_cdev.sbus_priv);
}
/* unregister wifi */
bes2600_switch_wifi(0);
/* power down device if wifi is only opened */
if (bes2600_chrdev_check_system_close()) {
bes2600_chrdev_do_system_close(bes2600_cdev.sbus_ops,
bes2600_cdev.sbus_priv);
}
}
}
void bes2600_chrdev_wifi_force_close(struct bes2600_common *hw_priv, bool halt_dev)
{
if (hw_priv == NULL)
return;
if (bes2600_chrdev_is_wifi_opened() &&
!work_pending(&bes2600_cdev.wifi_force_close_work)) {
spin_lock(&bes2600_cdev.status_lock);
bes2600_cdev.bus_error = true;
bes2600_cdev.halt_dev = halt_dev;
spin_unlock(&bes2600_cdev.status_lock);
bes2600_tx_loop_set_enable(hw_priv, true);
schedule_work(&bes2600_cdev.wifi_force_close_work);
}
}
void bes2600_chrdev_usb_remove(struct bes2600_common *hw_priv)
{
if (hw_priv == NULL)
return;
if (bes2600_chrdev_is_wifi_opened() &&
!work_pending(&bes2600_cdev.wifi_force_close_work)) {
spin_lock(&bes2600_cdev.status_lock);
bes2600_cdev.bus_error = true;
spin_unlock(&bes2600_cdev.status_lock);
bes2600_tx_loop_set_enable(hw_priv, false);
bes2600_chrdev_wifi_force_close_work(&bes2600_cdev.wifi_force_close_work);
}
}
static void bes2600_probe_timeout_work(struct work_struct *work)
{
spin_lock(&bes2600_cdev.status_lock);
bes2600_cdev.bus_probe = BES2600_BUS_PROBE_TIMEOUT;
bes2600_cdev.wifi_opened = false;
bes2600_cdev.bt_opened = false;
bes2600_cdev.bton_pending = false;
spin_unlock(&bes2600_cdev.status_lock);
bes_devel("bus probe timeout\n");
wake_up(&bes2600_cdev.probe_done_wq);
}
void bes2600_chrdev_start_bus_probe(void)
{
spin_lock(&bes2600_cdev.status_lock);
bes2600_cdev.bus_probe = BES2600_BUS_PROBE_START;
spin_unlock(&bes2600_cdev.status_lock);
cancel_delayed_work_sync(&bes2600_cdev.probe_timeout_work);
schedule_delayed_work(&bes2600_cdev.probe_timeout_work, 3 * HZ);
}
void bes2600_chrdev_bus_probe_notify(void)
{
spin_lock(&bes2600_cdev.status_lock);
bes2600_cdev.bus_probe = BES2600_BUS_PROBE_OK;
spin_unlock(&bes2600_cdev.status_lock);
cancel_delayed_work_sync(&bes2600_cdev.probe_timeout_work);
wake_up(&bes2600_cdev.probe_done_wq);
}
void bes2600_chrdev_wifi_update_wakeup_reason(u16 reason, u16 port)
{
spin_lock(&bes2600_cdev.status_lock);
bes2600_cdev.wakeup_state = reason;
bes2600_cdev.src_port = port;
spin_unlock(&bes2600_cdev.status_lock);
}
void bes2600_chrdev_wakeup_by_event_set(enum wakeup_event wakeup_event)
{
spin_lock(&bes2600_cdev.status_lock);
bes2600_cdev.wakeup_by_event = wakeup_event;
spin_unlock(&bes2600_cdev.status_lock);
if (wakeup_event == WAKEUP_EVENT_NONE)
wake_up(&bes2600_cdev.wakeup_reason_wq);
}
int bes2600_chrdev_wakeup_by_event_get(void)
{
return bes2600_cdev.wakeup_by_event;
}
int bes2600_chrdev_init(struct sbus_ops *ops)
{
/* initialise global variable */
atomic_set(&bes2600_cdev.num_proc, 0);
init_waitqueue_head(&bes2600_cdev.open_wq);
spin_lock_init(&bes2600_cdev.status_lock);
init_waitqueue_head(&bes2600_cdev.probe_done_wq);
INIT_WORK(&bes2600_cdev.wifi_force_close_work, bes2600_chrdev_wifi_force_close_work);
INIT_DELAYED_WORK(&bes2600_cdev.probe_timeout_work, bes2600_probe_timeout_work);
init_waitqueue_head(&bes2600_cdev.wakeup_reason_wq);
bes2600_chrdev_wakeup_by_event_set(WAKEUP_EVENT_NONE);
#ifdef CONFIG_BES2600_WIFI_BOOT_ON
bes2600_cdev.wifi_opened = true;
#else
bes2600_cdev.wifi_opened = false;
#endif
#ifdef CONFIG_BES2600_BT_BOOT_ON
bes2600_cdev.bt_opened = true;
bes2600_cdev.bton_pending = true;
#else
bes2600_cdev.bt_opened = false;
bes2600_cdev.bton_pending = false;
#endif
bes2600_cdev.dpd_calied = false;
bes2600_cdev.wait_state = BES2600_BOOT_WAIT_NONE;
bes2600_cdev.sbus_ops = ops;
bes2600_cdev.bus_error = false;
bes2600_cdev.halt_dev = false;
bes2600_cdev.read_flag = BES_CDEV_READ_NUM_MAX;
bes2600_cdev.wakeup_by_event = WAKEUP_EVENT_NONE;
bes_devel("%s done\n", __func__);
return 0;
}
void bes2600_chrdev_free(void)
{
cancel_delayed_work_sync(&bes2600_cdev.probe_timeout_work);
#ifdef BES2600_DUMP_FW_DPD_LOG
bes2600_free_dpd_log_buffer();
#endif
bes2600_chrdev_free_dpd_data();
bes_devel("%s done\n", __func__);
}
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