# ACS

## 参数如下

- `acs_bkscanen `

  - `cfg80211tool wifi0 acs_bkscanen 1`：使能acs后台定时扫描
  - `cfg80211tool wifi0 acs_bkscanen 0`：禁能启acs后台定时扫描
  - `cfg80211tool wifi0 g_acs_bkscanen`：获取`g_acs_bkscanen`的值
  - 注意：该选项只有`acs_ctrlflags`设置后才会生效

- `acs_ctrlflags` ：ACS后台扫描控制Flags

  - `cfg80211tool wifi0 acs_ctrlflags 0x1`：Full ACS check
  - `cfg80211tool wifi0 getacsctrlflags 0x2`：仅OBSS check

- `acs_scanintvl` ：后台扫描间隔

  - `cfg80211tool wifi0 acs_scanintvl 60`：设置后台扫描间隔 单位为秒
  - `cfg80211tool wifi0 g_acsscanintvl`：获取`g_acsscanintvl`的值

- `acs_rssivar`：设置两个rssi差值，该值用来忽略两个通道之间的差异，如果两个信道的差值小于acs_rssivar，则两个信道都被认为具有相同的RSSI，默认是10

  - `cfg80211tool wifi0 acs_rssivar 10`：设置rssi差值的阈值
  - `cfg80211tool wifi0 get_acs_rssivar`:获取该值

- `acs_chloadvar`：If two channel differ with channel load value less then ch load
  variance .They are treated as having same channel load for next
  level evaluation

  - `cfg80211tool wifi0 acs_chloadvar 20`：默认20
  - `cfg80211tool wifi0 g_acschloadvar` 获取该值

- `acs_lmtobss`

  - `cfg80211tool wifi0 acs_lmtobss`：Enable limited BSS check
  - `cfg80211tool wifi0 get_acslmtobss`：获取该值

- `acs_dbgtrace` :设置日志

  - `cfg80211tool wifi1 acs_dbgtrace 0x0080`：设置调试日志输出

    ```c
    ACS_DBG_EXT = 0x0000, /* Always enabled for all external
    APIs */
    ACS_DBG_BASE = 0x0001, /* Base prints */
    ACS_DBG_RSSI = 0x0002, /* RSSI stats */
    ACS_DBG_ADJCHAN = 0x0004, /* Adjacent channel stats
    collection */
    ACS_DBG_NF = 0x0008, /* Noise floor stats */
    ACS_DBG_CHLOAD = 0x0010, /* Channel load stats */
    ACS_DBG_REGPOWER = 0x0020, /* Regulatory tx power stats
    */
    ACS_DBG_OBSS = 0x0040, /* OBSS/Coex checking */
    ACS_DBG_SCAN = 0x0080, /* Scan handling */
    ACS_DBG_BLOCK = 0x0100, /* Blocking logic */
    ACS_DBG_FILTER = 0x0200, /* EACS-plus filtering logic */
    ACS_DBG_CHLST = 0x0400, /* Channel list population */
    ACS_DBG_MAX = 0xFFFF, /* All prints */
    ```

  - `cfg80211tool wifi0 g_acs_dbgtrace`：获取该值

- `obss_rssi_th`：如果OBSSI rssi超过该阈值后，切换到20MHZ

  - `cfg80211tool wifi0 obss_rssi_th  35`  ：value范围0-127
  - `cfg80211tool wifi0 gobss_rssi_th`：获取该值

- `obss_rx_rssi_th`：如果接收的帧的rssi超过该阈值后，会从40MHz 切换到20MHZ

  - `cfg80211tool wifi0 obss_rx_rssi_th 35`  ：value范围0-127

- `acs_txpwr_opt`：配置ACS Tx Power 参数

  - `cfg80211tool wifi0 acs_txpwr_opt  1`  ：Tx功率提供良好的吞吐量
  - `cfg80211tool wifi0 acs_txpwr_opt  2`  ：最大范围的Tx功率
  - `cfg80211tool wifi0 g_acs_txpwr_opt`：获取该值

- `acs_rank_en`：使能或者禁能ACS 通道上报排序功能

  - `cfg80211tool wifi0 acs_rank_en  1`  ：使能
  - `cfg80211tool wifi0 acs_rank_en  0`  ：禁能
  - `cfg80211tool wifi0 g_acs_rank_en`：获取该值

- `channel 0`：触发ACS扫描 在IPQ807X上用`cfg80211tool athN acsreport 1`这个命令触发

  - `cfg80211tool wifi0  channel 0`：触发ACS扫描
  - 

- `acsreport` ：

  - `cfg80211tool athN acsreport 1`：触发FW硬件扫描，把扫描结果发给HOST
  - `wifitool athN acsreport -nfall`：获取扫描结果

- `block_acs_channel`：设置阻塞列表

  ```bash
  wifitool ath0 block_acs_channel 1,2,3
  wifitool ath0 block_acs_channel 0             #這個會清除掉以前的
  wifitool ath0 block_acs_channel 4,5,6
  ```

  

- `setchanlist`：设置用户期望的扫描通道列表空格隔开

  - `wifitool ath0 setchanlist 40 30`
  - `wifitool ath0 getchanlist` 获取

-