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qcacld-3.0: SAP DFS CAC Support in 80+80MHz mode

Browse source 
Add support to perform CAC when SAP comes up in 160MHz
or 80+80MHz with any of the 80MHz band is DFS band.

Change-Id: If24d6cd325f747934195598ffe0f456eea939026
CRs-Fixed: 964262
This commit is contained in:
Sandeep Puligilla 2015-12-17 18:43:52 -08:00 • committed by Vishwajith Upendra
commit 949eaa7aab
3 changed files with 41 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

1
core/mac/inc/sir_api.h
View file

@ -3845,6 +3845,7 @@ typedef struct sSirChAvoidIndType {
#endif /* FEATURE_WLAN_CH_AVOID || FEATURE_WLAN_FORCE_SAP_SCC */
#define SIR_DFS_MAX_20M_SUB_CH 8
#define SIR_80MHZ_START_CENTER_CH_DIFF 6
typedef struct sSirSmeDfsChannelList {
uint32_t nchannels;

24
core/mac/src/pe/lim/lim_process_mlm_rsp_messages.c
View file

@ -225,6 +225,7 @@ void lim_process_mlm_start_cnf(tpAniSirGlobal pMac, uint32_t *pMsgBuf)
uint8_t smesessionId;
uint16_t smetransactionId;
uint8_t channelId;
uint8_t send_bcon_ind = false;
if (pMsgBuf == NULL) {
PELOGE(lim_log(pMac, LOGE, FL("Buffer is Pointing to NULL"));)
@ -294,10 +295,25 @@ void lim_process_mlm_start_cnf(tpAniSirGlobal pMac, uint32_t *pMsgBuf)
* request from upper layers to start the beacon transmission
*/
if (LIM_IS_IBSS_ROLE(psessionEntry) ||
(LIM_IS_AP_ROLE(psessionEntry) &&
(cds_get_channel_state(channelId) !=
CHANNEL_STATE_DFS))) {
if (!(LIM_IS_IBSS_ROLE(psessionEntry) ||
(LIM_IS_AP_ROLE(psessionEntry))))
return;
if (psessionEntry->ch_width == CH_WIDTH_160MHZ) {
send_bcon_ind = false;
} else if (psessionEntry->ch_width == CH_WIDTH_80P80MHZ) {
if ((cds_get_channel_state(channelId) !=
CHANNEL_STATE_DFS) &&
(cds_get_channel_state(psessionEntry->
ch_center_freq_seg1 -
SIR_80MHZ_START_CENTER_CH_DIFF) !=
CHANNEL_STATE_DFS))
send_bcon_ind = true;
} else {
if (cds_get_channel_state(channelId) !=
CHANNEL_STATE_DFS)
send_bcon_ind = true;
}
if (send_bcon_ind) {
/* Configure beacon and send beacons to HAL */
QDF_TRACE(QDF_MODULE_ID_PE, QDF_TRACE_LEVEL_INFO,
FL("Start Beacon with ssid %s Ch %d"),

24
core/sap/src/sap_fsm.c
View file

@ -3433,6 +3433,7 @@ static QDF_STATUS sap_fsm_state_starting(ptSapContext sap_ctx,
tCsrRoamInfo *roam_info = (tCsrRoamInfo *) (sap_event->params);
tSapDfsInfo *sap_dfs_info;
QDF_STATUS qdf_status = QDF_STATUS_E_FAILURE;
uint8_t is_dfs = false;
if (msg == eSAP_MAC_START_BSS_SUCCESS) {
/*
@ -3440,8 +3441,9 @@ static QDF_STATUS sap_fsm_state_starting(ptSapContext sap_ctx,
* (both without substates)
*/
QDF_TRACE(QDF_MODULE_ID_SAP, QDF_TRACE_LEVEL_INFO_HIGH,
FL("from state channel = %d %s => %s"),
sap_ctx->channel, "eSAP_STARTING", "eSAP_STARTED");
FL("from state channel = %d %s => %s ch_width %d"),
sap_ctx->channel, "eSAP_STARTING", "eSAP_STARTED",
sap_ctx->ch_params.ch_width);
sap_ctx->sapsMachine = eSAP_STARTED;
/* Action code for transition */
@ -3454,8 +3456,22 @@ static QDF_STATUS sap_fsm_state_starting(ptSapContext sap_ctx,
* running, however, the AP is still not beaconing, until
* CAC is done if the operating channel is DFS
*/
if (CHANNEL_STATE_DFS ==
cds_get_channel_state(sap_ctx->channel)) {
if (sap_ctx->ch_params.ch_width == CH_WIDTH_160MHZ) {
is_dfs = true;
} else if (sap_ctx->ch_params.ch_width == CH_WIDTH_80P80MHZ) {
if (cds_get_channel_state(sap_ctx->channel) ==
CHANNEL_STATE_DFS ||
cds_get_channel_state(sap_ctx->
ch_params.center_freq_seg1 -
SIR_80MHZ_START_CENTER_CH_DIFF) ==
CHANNEL_STATE_DFS)
is_dfs = true;
} else {
if (cds_get_channel_state(sap_ctx->channel) ==
CHANNEL_STATE_DFS)
is_dfs = true;
}
if (is_dfs) {
sap_dfs_info = &mac_ctx->sap.SapDfsInfo;
if ((false == sap_dfs_info->ignore_cac) &&
(eSAP_DFS_DO_NOT_SKIP_CAC ==