qcacmn: Add support to process radar found indication
Add support to process radar found indication, find and update radar affected channels to nol. Change-Id: Icb2d601f422e43e9a98840dd22325a571fd92f27 CRs-Fixed: 2017481
This commit is contained in:
Arif Hussain
committed by
Sandeep Puligilla
Sandeep Puligilla
parent
7fc2e862cd
commit
1b9dcf5a12
94
umac/dfs/core/src/dfs_process_radar_found_ind.h
Normal file
94
umac/dfs/core/src/dfs_process_radar_found_ind.h
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@@ -0,0 +1,94 @@
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/*
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* Copyright (c) 2017 The Linux Foundation. All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all
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* copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/**
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* DOC: dfs_process_radar_found_ind.h
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* This file provides prototypes of the routines needed for the
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* external components to utilize the services provided by the
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* DFS component.
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*/
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/* Number of channel marking offsets */
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#define DFS_NUM_FREQ_OFFSET 3
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/* Lower channel from 20 Mhz center channel */
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#define DFS_20MHZ_LOWER_CHANNEL(_f) ((_f) - 20)
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/* Upper channel from 20 Mhz center channel */
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#define DFS_20MHZ_UPPER_CHANNEL(_f) ((_f) + 20)
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/* 1st lower channel from center channel of bandwidth 40/80/160Mhz */
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#define DFS_FIRST_LOWER_CHANNEL(_f) ((_f) - 10)
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/* 2nd lower channel from center channel of bandwidth 40/80/160Mhz */
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#define DFS_SECOND_LOWER_CHANNEL(_f) ((_f) - 30)
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/* 3rd lower channel from center channel of bandwidth 80/160Mhz */
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#define DFS_THIRD_LOWER_CHANNEL(_f) ((_f) - 50)
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/* 1st upper channel from center channel of bandwidth 40/80/160Mhz */
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#define DFS_FIRST_UPPER_CHANNEL(_f) ((_f) + 10)
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/* 2nd upper channel from center channel of bandwidth 40/80/160Mhz */
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#define DFS_SECOND_UPPER_CHANNEL(_f) ((_f) + 30)
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/* 3rd upper channel from center channel of bandwidth 80/160Mhz */
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#define DFS_THIRD_UPPER_CHANNEL(_f) ((_f) + 50)
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/* 20 Mhz freq_offset lower */
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#define DFS_20MZ_OFFSET_LOWER (-10)
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/* 20 Mhz freq_offset upper */
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#define DFS_20MZ_OFFSET_UPPER (10)
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/* 40/80 Mhz freq_offset first lower */
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#define DFS_OFFET_FIRST_LOWER (-20)
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/* 40/80 Mhz freq_offset second lower */
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#define DFS_OFFET_SECOND_LOWER (-40)
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/* 40/80 Mhz freq_offset first upper */
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#define DFS_OFFET_FIRST_UPPER (20)
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/* 40/80 Mhz freq_offset second upper */
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#define DFS_OFFET_SECOND_UPPER (40)
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/* Frequency offset to sidx */
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#define DFS_FREQ_OFFSET_TO_SIDX(_f) ((32 * (_f)) / 10)
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/* sidx offset boundry */
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#define DFS_BOUNDRY_SIDX 32
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/* freq offset for chirp */
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#define DFS_CHIRP_OFFSET 10
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/* second segment freq offset */
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#define DFS_160MHZ_SECOND_SEG_OFFSET 40
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/**
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* struct freqs_offsets - frequency and offset informat
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* @chan_num: channel number.
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* @freq: channel frequency in mhz.
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* @offset: offset from center frequency.
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*
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* This information is needed to find and mark radar infected
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* channels in NOL and regulatory database.
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*/
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struct freqs_offsets {
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uint32_t chan_num[DFS_NUM_FREQ_OFFSET];
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int32_t freq[DFS_NUM_FREQ_OFFSET];
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uint32_t offset[DFS_NUM_FREQ_OFFSET];
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};
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/**
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* dfs_process_radar_found_indication() - Process radar found indication
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* @dfs: Pointer to wlan_dfs structure.
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* @radar_found: radar found info.
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*
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* Process radar found indication and update radar effected channel in NOL
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* and regulatory.
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*
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* Return: None
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*/
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void dfs_process_radar_found_indication(struct wlan_dfs *dfs,
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struct radar_found_info *radar_found);
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282
umac/dfs/core/src/misc/dfs_process_radar_found_ind.c
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282
umac/dfs/core/src/misc/dfs_process_radar_found_ind.c
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@@ -0,0 +1,282 @@
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/*
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* Copyright (c) 2017 The Linux Foundation. All rights reserved.
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*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted, provided that the
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* above copyright notice and this permission notice appear in all
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* copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/**
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* DOC: API for processing radar found indication.
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*
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*/
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#include "../dfs.h"
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#include "../dfs_process_radar_found_ind.h"
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#include <wlan_reg_services_api.h>
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#include <wlan_dfs_utils_api.h>
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/**
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* A) If is chirp or radar found at boundary, two channels will effected.
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* freq_offset.freq[0] = fn+1
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* freq_offset.freq[1] = fn+1
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* freq_offset.freq[2] = fn
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*
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* Two channels, ch(n) and ch(n+1) will be added to nol.
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*
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*
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* dfs_freq_offset (radar found freq)
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* |
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* |
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* V
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* _______________________________________________________________________
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* | center freq | center freq | center freq |
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* | ch(n-1) | ch(n) | ch(n+1) |
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* | | | | | | |
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* | | | | | | |
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* | | | | | | |
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* fn-1 fn boundary fn+1
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* <-------- 20 Mhz ------>
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*
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*
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* B) Else only one channel will be effected
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* freq_offset.freq[0] = fn
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* freq_offset.freq[1] = fn
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* freq_offset.freq[2] = fn
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*
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* One channel ch(n) will be added to nol.
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*
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*
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* dfs_freq_offset (radar found freq)
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* |
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* |
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* V
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* _______________________________________________________________________
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* | center freq | center freq | center freq |
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* | ch(n-1) | ch(n) | ch(n+1) |
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* | | | | | | |
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* | | | | | | |
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* | | | | | | |
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* fn-1 fn boundary fn+1
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* <-------- 20 Mhz ------>
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*/
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/**
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* dfs_radar_add_to_nol()- add channel to nol list
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* @dfs: dfs handler
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* @freq_offset: freq offset
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*
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* add channel to nol list.
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*
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* Return: None
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*/
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static void dfs_radar_add_to_nol(struct wlan_dfs *dfs,
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struct freqs_offsets *freq_offset)
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{
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int i;
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uint8_t last_chan = 0;
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uint8_t nollist[DFS_NUM_FREQ_OFFSET];
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uint8_t num_ch = 0;
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for (i = 0; i < DFS_NUM_FREQ_OFFSET; i++) {
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if (freq_offset->chan_num[i] == 0 ||
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freq_offset->chan_num[i] == last_chan)
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continue;
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if (!utils_is_dfs_ch(dfs->dfs_pdev_obj,
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freq_offset->chan_num[i])) {
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DFS_PRINTK("%s: ch=%d is not dfs skip\n",
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__func__, freq_offset->chan_num[i]);
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continue;
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}
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last_chan = freq_offset->chan_num[i];
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dfs_nol_addchan(dfs, (uint16_t)freq_offset->freq[i],
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DFS_NOL_TIMEOUT_S);
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nollist[num_ch++] = last_chan;
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DFS_PRINTK("%s: ch=%d Added to NOL\n", __func__, last_chan);
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}
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utils_dfs_reg_update_nol_ch(dfs->dfs_pdev_obj,
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nollist, num_ch, DFS_NOL_SET);
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dfs_save_nol(dfs->dfs_pdev_obj);
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}
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/**
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* dfs_radar_chan_for_80()- Find frequency offsets for 80MHz
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* @freq_offset: freq offset
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* @center_freq: center frequency
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*
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* Find frequency offsets for 80MHz
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*
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* Return: None
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*/
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static void dfs_radar_chan_for_80(struct freqs_offsets *freq_offset,
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uint32_t center_freq)
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{
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int i;
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for (i = 0; i < DFS_NUM_FREQ_OFFSET; i++) {
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if (freq_offset->offset[i] < DFS_OFFET_SECOND_LOWER)
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freq_offset->freq[i] =
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DFS_THIRD_LOWER_CHANNEL(center_freq);
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else if ((freq_offset->offset[i] > DFS_OFFET_SECOND_LOWER) &&
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(freq_offset->offset[i] < DFS_OFFET_FIRST_LOWER))
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freq_offset->freq[i] =
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DFS_SECOND_LOWER_CHANNEL(center_freq);
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else if ((freq_offset->offset[i] > DFS_OFFET_FIRST_LOWER) &&
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(freq_offset->offset[i] < 0))
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freq_offset->freq[i] =
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DFS_FIRST_LOWER_CHANNEL(center_freq);
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else if ((freq_offset->offset[i] > 0) &&
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(freq_offset->offset[i] < DFS_OFFET_FIRST_UPPER))
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freq_offset->freq[i] =
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DFS_FIRST_UPPER_CHANNEL(center_freq);
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else if ((freq_offset->offset[i] > DFS_OFFET_FIRST_UPPER) &&
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(freq_offset->offset[i] < DFS_OFFET_SECOND_UPPER))
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freq_offset->freq[i] =
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DFS_SECOND_UPPER_CHANNEL(center_freq);
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else if (freq_offset->offset[i] > DFS_OFFET_SECOND_UPPER)
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freq_offset->freq[i] =
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DFS_THIRD_UPPER_CHANNEL(center_freq);
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}
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}
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/**
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* dfs_radar_chan_for_40()- Find frequency offsets for 40MHz
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* @freq_offset: freq offset
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* @center_freq: center frequency
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*
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* Find frequency offsets for 40MHz
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*
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* Return: None
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*/
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static void dfs_radar_chan_for_40(struct freqs_offsets *freq_offset,
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uint32_t center_freq)
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{
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int i;
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for (i = 0; i < DFS_NUM_FREQ_OFFSET; i++) {
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if (freq_offset->offset[i] < DFS_OFFET_FIRST_LOWER)
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freq_offset->freq[i] =
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DFS_SECOND_LOWER_CHANNEL(center_freq);
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else if ((freq_offset->offset[i] > DFS_OFFET_FIRST_LOWER) &&
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(freq_offset->offset[i] < 0))
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freq_offset->freq[i] =
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DFS_FIRST_LOWER_CHANNEL(center_freq);
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else if ((freq_offset->offset[i] > 0) &&
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(freq_offset->offset[i] < DFS_OFFET_FIRST_UPPER))
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freq_offset->freq[i] =
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DFS_FIRST_UPPER_CHANNEL(center_freq);
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else if (freq_offset->offset[i] > DFS_OFFET_FIRST_UPPER)
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freq_offset->freq[i] =
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DFS_SECOND_UPPER_CHANNEL(center_freq);
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}
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}
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/**
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* dfs_radar_chan_for_20()- Find frequency offsets for 20MHz
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* @freq_offset: freq offset
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* @center_freq: center frequency
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*
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* Find frequency offsets for 20MHz
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*
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* Return: None
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*/
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static void dfs_radar_chan_for_20(struct freqs_offsets *freq_offset,
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uint32_t center_freq)
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{
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int i;
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for (i = 0; i < DFS_NUM_FREQ_OFFSET; i++) {
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if (freq_offset->offset[i] <= DFS_20MZ_OFFSET_LOWER)
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freq_offset->freq[i] =
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DFS_20MHZ_LOWER_CHANNEL(center_freq);
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else if ((freq_offset->offset[i] > DFS_20MZ_OFFSET_LOWER) &&
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(freq_offset->offset[i] < DFS_20MZ_OFFSET_UPPER))
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freq_offset->freq[i] = center_freq;
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else if (freq_offset->offset[i] >= DFS_20MZ_OFFSET_UPPER)
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freq_offset->freq[i] =
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DFS_20MHZ_UPPER_CHANNEL(center_freq);
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}
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}
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void dfs_process_radar_found_indication(struct wlan_dfs *dfs,
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struct radar_found_info *radar_found)
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{
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int i;
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struct freqs_offsets freq_offset;
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uint32_t freq_center, flag;
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int32_t sidx;
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if (!dfs || !dfs->dfs_curchan) {
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DFS_PRINTK("%s: dfs is null\n", __func__);
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return;
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}
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qdf_mem_set(&freq_offset, sizeof(freq_offset), 0);
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flag = dfs->dfs_curchan->ic_flags;
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for (i = 0; i < DFS_NUM_FREQ_OFFSET; i++)
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freq_offset.offset[i] = radar_found->freq_offset;
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sidx = DFS_FREQ_OFFSET_TO_SIDX(radar_found->freq_offset);
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if (!radar_found->segment_id)
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freq_center = utils_dfs_chan_to_freq(dfs->dfs_pdev_obj,
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dfs->dfs_curchan->ic_vhtop_ch_freq_seg1);
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else {
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freq_center = utils_dfs_chan_to_freq(dfs->dfs_pdev_obj,
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dfs->dfs_curchan->ic_vhtop_ch_freq_seg2);
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if (flag & IEEE80211_CHAN_VHT160)
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freq_center += DFS_160MHZ_SECOND_SEG_OFFSET;
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}
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DFS_PRINTK("%s: seg=%d, sidx=%d, offset=%d, chirp=%d, flag=%d, f=%d\n",
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__func__, radar_found->segment_id, sidx,
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radar_found->freq_offset, radar_found->is_chirp,
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||||||
|
flag, freq_center);
|
||||||
|
|
||||||
|
if ((flag & IEEE80211_CHAN_HT20) ||
|
||||||
|
(flag & IEEE80211_CHAN_VHT20)) {
|
||||||
|
if (radar_found->is_chirp ||
|
||||||
|
(sidx && !(abs(sidx) % DFS_BOUNDRY_SIDX))) {
|
||||||
|
freq_offset.offset[1] -= DFS_CHIRP_OFFSET;
|
||||||
|
freq_offset.offset[2] += DFS_CHIRP_OFFSET;
|
||||||
|
}
|
||||||
|
dfs_radar_chan_for_20(&freq_offset, freq_center);
|
||||||
|
} else if ((flag & IEEE80211_CHAN_VHT40PLUS) ||
|
||||||
|
(flag & IEEE80211_CHAN_HT40PLUS) ||
|
||||||
|
(flag & IEEE80211_CHAN_VHT40MINUS) ||
|
||||||
|
(flag & IEEE80211_CHAN_HT40MINUS)) {
|
||||||
|
if (radar_found->is_chirp || !(abs(sidx) % DFS_BOUNDRY_SIDX)) {
|
||||||
|
freq_offset.offset[1] -= DFS_CHIRP_OFFSET;
|
||||||
|
freq_offset.offset[2] += DFS_CHIRP_OFFSET;
|
||||||
|
}
|
||||||
|
dfs_radar_chan_for_40(&freq_offset, freq_center);
|
||||||
|
} else if ((flag & IEEE80211_CHAN_VHT80) ||
|
||||||
|
(flag & IEEE80211_CHAN_VHT80_80) ||
|
||||||
|
(flag & IEEE80211_CHAN_VHT160)) {
|
||||||
|
if (radar_found->is_chirp || !(abs(sidx) % DFS_BOUNDRY_SIDX)) {
|
||||||
|
freq_offset.offset[1] -= DFS_CHIRP_OFFSET;
|
||||||
|
freq_offset.offset[2] += DFS_CHIRP_OFFSET;
|
||||||
|
}
|
||||||
|
dfs_radar_chan_for_80(&freq_offset, freq_center);
|
||||||
|
}
|
||||||
|
|
||||||
|
for (i = 0; i < DFS_NUM_FREQ_OFFSET; i++) {
|
||||||
|
freq_offset.chan_num[i] = utils_dfs_freq_to_chan(
|
||||||
|
dfs->dfs_pdev_obj, freq_offset.freq[i]);
|
||||||
|
DFS_PRINTK("%s: offset=%d, channel%d\n",
|
||||||
|
__func__, i, freq_offset.chan_num[i]);
|
||||||
|
}
|
||||||
|
|
||||||
|
dfs_radar_add_to_nol(dfs, &freq_offset);
|
||||||
|
}
|
||||||
Reference in New Issue
Block a user