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qcacmn: Trim ACS channel list based on the concurrent connections

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If force SCC is enabled and there is a STA connection, trim the
ACS channel list on the band on which STA connection is present.

Change-Id: Ibd580a7afdcdfc5fb4398ada547565e229d59c70
CRs-Fixed: 2193720
This commit is contained in:
Tushnim Bhattacharyya
2018-02-21 13:37:00 -08:00
committed by snandini
parent 5b3912a049
commit 0f7b9cd898
2 changed files with 94 additions and 0 deletions
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11
umac/cmn_services/policy_mgr/inc/wlan_policy_mgr_api.h
View File

@@ -2244,4 +2244,15 @@ bool policy_mgr_is_sta_sap_scc_allowed_on_dfs_chan(
* Return: true if sta is connected in 2g else false
*/
bool policy_mgr_is_sta_connected_2g(struct wlan_objmgr_psoc *psoc);
/**
* policy_mgr_trim_acs_channel_list() - Trim the ACS channel list based
* on the number of active station connections
* @org_ch_list: ACS channel list from user space
* @org_ch_list_count: ACS channel count from user space
*
* Return: None
*/
void policy_mgr_trim_acs_channel_list(struct wlan_objmgr_psoc *psoc,
uint8_t *org_ch_list, uint8_t *org_ch_list_count);
#endif /* __WLAN_POLICY_MGR_API_H */

83
umac/cmn_services/policy_mgr/src/wlan_policy_mgr_get_set_utils.c
View File

@@ -2820,3 +2820,86 @@ bool policy_mgr_is_sta_connected_2g(struct wlan_objmgr_psoc *psoc)
return ret;
}
void policy_mgr_trim_acs_channel_list(struct wlan_objmgr_psoc *psoc,
uint8_t *org_ch_list, uint8_t *org_ch_list_count)
{
uint32_t list[MAX_NUMBER_OF_CONC_CONNECTIONS];
uint32_t index, count, i, ch_list_count;
uint8_t band_mask = 0, ch_5g = 0, ch_24g = 0;
uint8_t ch_list[QDF_MAX_NUM_CHAN];
struct policy_mgr_psoc_priv_obj *pm_ctx;
pm_ctx = policy_mgr_get_context(psoc);
if (!pm_ctx) {
policy_mgr_err("Invalid Context");
return;
}
if (*org_ch_list_count >= QDF_MAX_NUM_CHAN) {
policy_mgr_err("org_ch_list_count too big %d",
*org_ch_list_count);
return;
}
/*
* if force SCC is enabled and there is a STA connection, trim the
* ACS channel list on the band on which STA connection is present
*/
count = policy_mgr_mode_specific_connection_count(
psoc, PM_STA_MODE, list);
if (policy_mgr_is_force_scc(psoc) && count) {
index = 0;
while (index < count) {
if (WLAN_REG_IS_24GHZ_CH(
pm_conc_connection_list[list[index]].chan) &&
policy_mgr_is_safe_channel(psoc,
pm_conc_connection_list[list[index]].chan)) {
band_mask |= 1;
ch_24g = pm_conc_connection_list[list[index]].chan;
}
if (WLAN_REG_IS_5GHZ_CH(
pm_conc_connection_list[list[index]].chan) &&
policy_mgr_is_safe_channel(psoc,
pm_conc_connection_list[list[index]].chan) &&
!wlan_reg_is_dfs_ch(pm_ctx->pdev,
pm_conc_connection_list[list[index]].chan) &&
!wlan_reg_is_passive_or_disable_ch(pm_ctx->pdev,
pm_conc_connection_list[list[index]].chan)) {
band_mask |= 2;
ch_5g = pm_conc_connection_list[list[index]].chan;
}
index++;
}
ch_list_count = 0;
if (band_mask == 1) {
ch_list[ch_list_count++] = ch_24g;
for (i = 0; i < *org_ch_list_count; i++) {
if (WLAN_REG_IS_24GHZ_CH(
org_ch_list[i]))
continue;
ch_list[ch_list_count++] =
org_ch_list[i];
}
} else if (band_mask == 2) {
ch_list[ch_list_count++] = ch_5g;
for (i = 0; i < *org_ch_list_count; i++) {
if (WLAN_REG_IS_5GHZ_CH(
org_ch_list[i]))
continue;
ch_list[ch_list_count++] =
org_ch_list[i];
}
} else if (band_mask == 3) {
ch_list[ch_list_count++] = ch_24g;
ch_list[ch_list_count++] = ch_5g;
} else {
policy_mgr_debug("unexpected band_mask value %d",
band_mask);
return;
}
*org_ch_list_count = ch_list_count;
for (i = 0; i < *org_ch_list_count; i++)
org_ch_list[i] = ch_list[i];
}
}