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qcacld-3.0: Implement vendor command to restart SAP on some channel

Browse source 
qcacld-2.0 to qcacld-3.0 propagation

Add support for vendor command which will do restart of the SAP
on desirable channel.
QCA_NL80211_VENDOR_SUBCMD_SET_SAP_CONFIG is used to send
driver to restart SAP device on some other channel.
Upon receiving this command, driver will do __hdd_hostapd_stop
and will disable all queues.
After that WLANSAP_StartBss start SAP on user config channel.

Change-Id: I34d4e4f758ca7e010ae198af31d9fc3777973b22
CRs-Fixed: 1000593
This commit is contained in:
Agrawal Ashish 2016-05-25 12:04:47 +05:30 • committed by Vishwajith Upendra
commit c9ddbabf76
3 changed files with 149 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

9
core/hdd/inc/wlan_hdd_main.h
View file

@ -1670,6 +1670,15 @@ static inline void hdd_set_tso_flags(hdd_context_t *hdd_ctx,
struct net_device *wlan_dev){}
#endif /* FEATURE_TSO */
#if defined(FEATURE_WLAN_MCC_TO_SCC_SWITCH) || \
defined(FEATURE_WLAN_STA_AP_MODE_DFS_DISABLE)
void wlan_hdd_restart_sap(hdd_adapter_t *ap_adapter);
#else
static inline void wlan_hdd_restart_sap(hdd_adapter_t *ap_adapter)
{
}
#endif
#ifdef WLAN_FEATURE_ROAM_OFFLOAD
static inline bool roaming_offload_enabled(hdd_context_t *hdd_ctx)
{

122
core/hdd/src/wlan_hdd_cfg80211.c
View file

@ -5359,6 +5359,119 @@ void hdd_init_bpf_completion(void)
init_completion(&bpf_context.completion);
}
static const struct nla_policy
wlan_hdd_sap_config_policy[QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_MAX + 1] = {
[QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_CHANNEL] = {.type = NLA_U8 },
};
/**
* __wlan_hdd_cfg80211_sap_configuration_set() - ask driver to restart SAP if
* SAP is on unsafe channel.
* @wiphy: wiphy structure pointer
* @wdev: Wireless device structure pointer
* @data: Pointer to the data received
* @data_len: Length of @data
*
* __wlan_hdd_cfg80211_sap_configuration_set function set SAP params to
* driver.
* QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_CHAN will set sap config channel and
* will initiate restart of sap.
*
* Return: 0 on success; errno on failure
*/
static int
__wlan_hdd_cfg80211_sap_configuration_set(struct wiphy *wiphy,
struct wireless_dev *wdev,
const void *data, int data_len)
{
struct net_device *ndev = wdev->netdev;
hdd_adapter_t *hostapd_adapter = WLAN_HDD_GET_PRIV_PTR(ndev);
hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_MAX + 1];
uint8_t config_channel = 0;
hdd_ap_ctx_t *ap_ctx;
int ret;
ENTER();
if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
hddLog(LOGE, FL("Command not allowed in FTM mode"));
return -EINVAL;
}
ret = wlan_hdd_validate_context(hdd_ctx);
if (0 != ret)
return -EINVAL;
if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_MAX,
data, data_len,
wlan_hdd_sap_config_policy)) {
hddLog(LOGE, FL("invalid attr"));
return -EINVAL;
}
if (tb[QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_CHANNEL]) {
if (!test_bit(SOFTAP_BSS_STARTED,
&hostapd_adapter->event_flags)) {
hdd_err("SAP is not started yet. Restart sap will be invalid");
return -EINVAL;
}
config_channel =
nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_CHANNEL]);
if (!((IS_24G_CH(config_channel)) ||
(IS_5G_CH(config_channel)))) {
hdd_err("Channel %d is not valid to restart SAP",
config_channel);
return -ENOTSUPP;
}
ap_ctx = WLAN_HDD_GET_AP_CTX_PTR(hostapd_adapter);
ap_ctx->sapConfig.channel = config_channel;
ap_ctx->sapConfig.ch_params.ch_width =
ap_ctx->sapConfig.ch_width_orig;
sme_set_ch_params(hdd_ctx->hHal,
ap_ctx->sapConfig.SapHw_mode,
ap_ctx->sapConfig.channel,
ap_ctx->sapConfig.sec_ch,
&ap_ctx->sapConfig.ch_params);
cds_restart_sap(hostapd_adapter);
}
return 0;
}
/**
* wlan_hdd_cfg80211_sap_configuration_set() - sap configuration vendor command
* @wiphy: wiphy structure pointer
* @wdev: Wireless device structure pointer
* @data: Pointer to the data received
* @data_len: Length of @data
*
* __wlan_hdd_cfg80211_sap_configuration_set function set SAP params to
* driver.
* QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_CHAN will set sap config channel and
* will initiate restart of sap.
*
* Return: 0 on success; errno on failure
*/
static int wlan_hdd_cfg80211_sap_configuration_set(struct wiphy *wiphy,
struct wireless_dev *wdev,
const void *data, int data_len)
{
int ret;
cds_ssr_protect(__func__);
ret = __wlan_hdd_cfg80211_sap_configuration_set(wiphy,
wdev, data, data_len);
cds_ssr_unprotect(__func__);
return ret;
}
#undef BPF_INVALID
#undef BPF_SET_RESET
#undef BPF_VERSION
@ -5845,6 +5958,15 @@ const struct wiphy_vendor_command hdd_wiphy_vendor_commands[] = {
WIPHY_VENDOR_CMD_NEED_RUNNING,
.doit = wlan_hdd_cfg80211_bpf_offload
},
{
.info.vendor_id = QCA_NL80211_VENDOR_ID,
.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_SET_SAP_CONFIG,
.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
WIPHY_VENDOR_CMD_NEED_NETDEV |
WIPHY_VENDOR_CMD_NEED_RUNNING,
.doit = wlan_hdd_cfg80211_sap_configuration_set
},
};
/**

18
core/hdd/src/wlan_hdd_cfg80211.h
View file

@ -258,6 +258,7 @@ typedef enum {
* @QCA_NL80211_VENDOR_SUBCMD_GW_PARAM_CONFIG: set gateway parameters
* @QCA_NL80211_VENDOR_SUBCMD_SET_TXPOWER_SCALE: set tx power by percentage
* @QCA_NL80211_VENDOR_SUBCMD_SET_TXPOWER_SCALE_DECR_DB: reduce tx power by DB
* @QCA_NL80211_VENDOR_SUBCMD_SET_SAP_CONFIG: SAP configuration
* @QCA_NL80211_VENDOR_SUBCMD_TSF: TSF operations command
* @QCA_NL80211_VENDOR_SUBCMD_WISA: WISA mode configuration
*/
@ -379,6 +380,7 @@ enum qca_nl80211_vendor_subcmds {
QCA_NL80211_VENDOR_SUBCMD_SET_TXPOWER_SCALE = 109,
/* Tx power scaling in db subcommands */
QCA_NL80211_VENDOR_SUBCMD_SET_TXPOWER_SCALE_DECR_DB = 115,
QCA_NL80211_VENDOR_SUBCMD_SET_SAP_CONFIG = 118,
QCA_NL80211_VENDOR_SUBCMD_TSF = 119,
QCA_NL80211_VENDOR_SUBCMD_WISA = 120,
};
@ -2357,6 +2359,22 @@ enum qca_vendor_attr_txpower_scale_decr_db {
QCA_WLAN_VENDOR_ATTR_TXPOWER_SCALE_DECR_DB_AFTER_LAST - 1
};
/**
* enum qca_wlan_vendor_attr_sap_config - config params for sap configuration
* @QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_INVALID: invalid
* @QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_CHANNEL: Channel on which SAP should start
* @QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_AFTER_LAST: after last
* @QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_MAX: max attribute
*/
enum qca_wlan_vendor_attr_sap_config {
QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_INVALID = 0,
QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_CHANNEL,
/* keep last */
QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_AFTER_LAST,
QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_MAX =
QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_AFTER_LAST - 1,
};
struct cfg80211_bss *wlan_hdd_cfg80211_update_bss_db(hdd_adapter_t *pAdapter,
tCsrRoamInfo *pRoamInfo);