/*
* Broadcom Dongle Host Driver (DHD)
* Prefered Network Offload and Wi-Fi Location Service(WLS) code.
*
* Portions of this code are copyright (c) 2022 Cypress Semiconductor Corporation
*
* Copyright (C) 1999-2017, Broadcom Corporation
*
* Unless you and Broadcom execute a separate written software license
* agreement governing use of this software, this software is licensed to you
* under the terms of the GNU General Public License version 2 (the "GPL"),
* available at http://www.broadcom.com/licenses/GPLv2.php, with the
* following added to such license:
*
* As a special exception, the copyright holders of this software give you
* permission to link this software with independent modules, and to copy and
* distribute the resulting executable under terms of your choice, provided that
* you also meet, for each linked independent module, the terms and conditions of
* the license of that module. An independent module is a module which is not
* derived from this software. The special exception does not apply to any
* modifications of the software.
*
* Notwithstanding the above, under no circumstances may you combine this
* software in any way with any other Broadcom software provided under a license
* other than the GPL, without Broadcom's express prior written consent.
*
*
* <<Broadcom-WL-IPTag/Open:>>
*
* $Id: dhd_pno.c 812762 2019-04-02 09:36:26Z $
*/
#if defined(GSCAN_SUPPORT) && !defined(PNO_SUPPORT)
#error "GSCAN needs PNO to be enabled!"
#endif // endif
#ifdef PNO_SUPPORT
#include <typedefs.h>
#include <osl.h>
#include <epivers.h>
#include <bcmutils.h>
#include <bcmendian.h>
#ifdef OEM_ANDROID
#include <linuxver.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/sort.h>
#endif // endif
#include <dngl_stats.h>
#include <wlioctl.h>
#include <bcmevent.h>
#include <dhd.h>
#include <dhd_linux.h>
#include <dhd_pno.h>
#include <dhd_dbg.h>
#ifdef GSCAN_SUPPORT
#include <linux/gcd.h>
#endif /* GSCAN_SUPPORT */
#ifdef WL_CFG80211
#include <wl_cfg80211.h>
#endif /* WL_CFG80211 */
#ifdef __BIG_ENDIAN
#include <bcmendian.h>
#define htod32(i) (bcmswap32(i))
#define htod16(i) (bcmswap16(i))
#define dtoh32(i) (bcmswap32(i))
#define dtoh16(i) (bcmswap16(i))
#define htodchanspec(i) htod16(i)
#define dtohchanspec(i) dtoh16(i)
#else
#define htod32(i) (i)
#define htod16(i) (i)
#define dtoh32(i) (i)
#define dtoh16(i) (i)
#define htodchanspec(i) (i)
#define dtohchanspec(i) (i)
#endif /* IL_BIGENDINA */
#ifdef OEM_ANDROID
#define PNO_GET_PNOSTATE(dhd) ((dhd_pno_status_info_t *)dhd->pno_state)
#define PNO_BESTNET_LEN WLC_IOCTL_MEDLEN
#define PNO_ON 1
#define PNO_OFF 0
#define CHANNEL_2G_MIN 1
#define CHANNEL_2G_MAX 14
#define CHANNEL_5G_MIN 34
#define CHANNEL_5G_MAX 165
#define IS_2G_CHANNEL(ch) ((ch >= CHANNEL_2G_MIN) && \
(ch <= CHANNEL_2G_MAX))
#define IS_5G_CHANNEL(ch) ((ch >= CHANNEL_5G_MIN) && \
(ch <= CHANNEL_5G_MAX))
#define MAX_NODE_CNT 5
#define WLS_SUPPORTED(pno_state) (pno_state->wls_supported == TRUE)
#define TIME_DIFF(timestamp1, timestamp2) (abs((uint32)(timestamp1/1000) \
- (uint32)(timestamp2/1000)))
#define TIME_DIFF_MS(timestamp1, timestamp2) (abs((uint32)(timestamp1) \
- (uint32)(timestamp2)))
#define TIMESPEC_TO_US(ts) (((uint64)(ts).tv_sec * USEC_PER_SEC) + \
(ts).tv_nsec / NSEC_PER_USEC)
#define ENTRY_OVERHEAD strlen("bssid=\nssid=\nfreq=\nlevel=\nage=\ndist=\ndistSd=\n====")
#define TIME_MIN_DIFF 5
#define EVENT_DATABUF_MAXLEN (512 - sizeof(bcm_event_t))
#define EVENT_MAX_NETCNT_V1 \
((EVENT_DATABUF_MAXLEN - sizeof(wl_pfn_scanresults_v1_t)) \
/ sizeof(wl_pfn_net_info_v1_t) + 1)
#define EVENT_MAX_NETCNT_V2 \
((EVENT_DATABUF_MAXLEN - sizeof(wl_pfn_scanresults_v2_t)) \
/ sizeof(wl_pfn_net_info_v2_t) + 1)
#ifdef GSCAN_SUPPORT
static int _dhd_pno_flush_ssid(dhd_pub_t *dhd);
static wl_pfn_gscan_ch_bucket_cfg_t *
dhd_pno_gscan_create_channel_list(dhd_pub_t *dhd, dhd_pno_status_info_t *pno_state,
uint16 *chan_list, uint32 *num_buckets, uint32 *num_buckets_to_fw);
#endif /* GSCAN_SUPPORT */
static int dhd_pno_set_legacy_pno(dhd_pub_t *dhd, uint16 scan_fr, int pno_repeat,
int pno_freq_expo_max, uint16 *channel_list, int nchan);
static inline bool
is_dfs(dhd_pub_t *dhd, uint16 channel)
{
u32 ch;
s32 err;
u8 buf[32];
ch = wl_ch_host_to_driver(channel);
err = dhd_iovar(dhd, 0, "per_chan_info", (char *)&ch,
sizeof(u32), buf, sizeof(buf), FALSE);
if (unlikely(err)) {
DHD_ERROR(("get per chan info failed:%d\n", err));
return FALSE;
}
/* Check the channel flags returned by fw */
if (*((u32 *)buf) & WL_CHAN_PASSIVE) {
return TRUE;
}
return FALSE;
}
int
dhd_pno_clean(dhd_pub_t *dhd)
{
int pfn = 0;
int err;
dhd_pno_status_info_t *_pno_state;
NULL_CHECK(dhd, "dhd is NULL", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
_pno_state = PNO_GET_PNOSTATE(dhd);
DHD_PNO(("%s enter\n", __FUNCTION__));
/* Disable PNO */
err = dhd_iovar(dhd, 0, "pfn", (char *)&pfn, sizeof(pfn), NULL, 0, TRUE);
if (err < 0) {
DHD_ERROR(("%s : failed to execute pfn(error : %d)\n",
__FUNCTION__, err));
goto exit;
}
_pno_state->pno_status = DHD_PNO_DISABLED;
err = dhd_iovar(dhd, 0, "pfnclear", NULL, 0, NULL, 0, TRUE);
if (err < 0) {
DHD_ERROR(("%s : failed to execute pfnclear(error : %d)\n",
__FUNCTION__, err));
}
exit:
return err;
}
bool
dhd_is_pno_supported(dhd_pub_t *dhd)
{
dhd_pno_status_info_t *_pno_state;
if (!dhd || !dhd->pno_state) {
DHD_ERROR(("NULL POINTER : %s\n",
__FUNCTION__));
return FALSE;
}
_pno_state = PNO_GET_PNOSTATE(dhd);
return WLS_SUPPORTED(_pno_state);
}
bool
dhd_is_legacy_pno_enabled(dhd_pub_t *dhd)
{
dhd_pno_status_info_t *_pno_state;
if (!dhd || !dhd->pno_state) {
DHD_ERROR(("NULL POINTER : %s\n",
__FUNCTION__));
return FALSE;
}
_pno_state = PNO_GET_PNOSTATE(dhd);
return ((_pno_state->pno_mode & DHD_PNO_LEGACY_MODE) != 0);
}
#ifdef GSCAN_SUPPORT
static uint64
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0))
convert_fw_rel_time_to_systime(struct timespec64 *ts, uint32 fw_ts_ms)
#else
convert_fw_rel_time_to_systime(struct timespec *ts, uint32 fw_ts_ms)
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)) */
{
return ((uint64)(TIMESPEC_TO_US(*ts)) - (uint64)(fw_ts_ms * 1000));
}
static void
dhd_pno_idx_to_ssid(struct dhd_pno_gscan_params *gscan_params,
dhd_epno_results_t *res, uint32 idx)
{
dhd_pno_ssid_t *iter, *next;
int i;
/* If idx doesn't make sense */
if (idx >= gscan_params->epno_cfg.num_epno_ssid) {
DHD_ERROR(("No match, idx %d num_ssid %d\n", idx,
gscan_params->epno_cfg.num_epno_ssid));
goto exit;
}
if (gscan_params->epno_cfg.num_epno_ssid > 0) {
i = 0;
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
list_for_each_entry_safe(iter, next,
&gscan_params->epno_cfg.epno_ssid_list, list) {
GCC_DIAGNOSTIC_POP();
if (i++ == idx) {
memcpy(res->ssid, iter->SSID, iter->SSID_len);
res->ssid_len = iter->SSID_len;
return;
}
}
}
exit:
/* If we are here then there was no match */
res->ssid[0] = '\0';
res->ssid_len = 0;
return;
}
/* Translate HAL flag bitmask to BRCM FW flag bitmask */
void
dhd_pno_translate_epno_fw_flags(uint32 *flags)
{
uint32 in_flags, fw_flags = 0;
in_flags = *flags;
if (in_flags & DHD_EPNO_A_BAND_TRIG) {
fw_flags |= WL_PFN_SSID_A_BAND_TRIG;
}
if (in_flags & DHD_EPNO_BG_BAND_TRIG) {
fw_flags |= WL_PFN_SSID_BG_BAND_TRIG;
}
if (!(in_flags & DHD_EPNO_STRICT_MATCH) &&
!(in_flags & DHD_EPNO_HIDDEN_SSID)) {
fw_flags |= WL_PFN_SSID_IMPRECISE_MATCH;
}
if (in_flags & DHD_EPNO_SAME_NETWORK) {
fw_flags |= WL_PFN_SSID_SAME_NETWORK;
}
/* Add any hard coded flags needed */
fw_flags |= WL_PFN_SUPPRESS_AGING_MASK;
*flags = fw_flags;
return;
}
/* Translate HAL auth bitmask to BRCM FW bitmask */
void
dhd_pno_set_epno_auth_flag(uint32 *wpa_auth)
{
switch (*wpa_auth) {
case DHD_PNO_AUTH_CODE_OPEN:
*wpa_auth = WPA_AUTH_DISABLED;
break;
case DHD_PNO_AUTH_CODE_PSK:
*wpa_auth = (WPA_AUTH_PSK | WPA2_AUTH_PSK);
break;
case DHD_PNO_AUTH_CODE_EAPOL:
*wpa_auth = ~WPA_AUTH_NONE;
break;
default:
DHD_ERROR(("%s: Unknown auth %d", __FUNCTION__, *wpa_auth));
*wpa_auth = WPA_AUTH_PFN_ANY;
break;
}
return;
}
/* Cleanup all results */
static void
dhd_gscan_clear_all_batch_results(dhd_pub_t *dhd)
{
struct dhd_pno_gscan_params *gscan_params;
dhd_pno_status_info_t *_pno_state;
gscan_results_cache_t *iter;
_pno_state = PNO_GET_PNOSTATE(dhd);
gscan_params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS].params_gscan;
iter = gscan_params->gscan_batch_cache;
/* Mark everything as consumed */
while (iter) {
iter->tot_consumed = iter->tot_count;
iter = iter->next;
}
dhd_gscan_batch_cache_cleanup(dhd);
return;
}
static int
_dhd_pno_gscan_cfg(dhd_pub_t *dhd, wl_pfn_gscan_cfg_t *pfncfg_gscan_param, int size)
{
int err = BCME_OK;
NULL_CHECK(dhd, "dhd is NULL", err);
DHD_PNO(("%s enter\n", __FUNCTION__));
err = dhd_iovar(dhd, 0, "pfn_gscan_cfg", (char *)pfncfg_gscan_param, size, NULL, 0, TRUE);
if (err < 0) {
DHD_ERROR(("%s : failed to execute pfncfg_gscan_param\n", __FUNCTION__));
goto exit;
}
exit:
return err;
}
static int
_dhd_pno_flush_ssid(dhd_pub_t *dhd)
{
int err;
wl_pfn_t pfn_elem;
memset(&pfn_elem, 0, sizeof(wl_pfn_t));
pfn_elem.flags = htod32(WL_PFN_FLUSH_ALL_SSIDS);
err = dhd_iovar(dhd, 0, "pfn_add", (char *)&pfn_elem, sizeof(wl_pfn_t), NULL, 0, TRUE);
if (err < 0) {
DHD_ERROR(("%s : failed to execute pfn_add\n", __FUNCTION__));
}
return err;
}
static bool
is_batch_retrieval_complete(struct dhd_pno_gscan_params *gscan_params)
{
smp_rmb();
return (gscan_params->get_batch_flag == GSCAN_BATCH_RETRIEVAL_COMPLETE);
}
#endif /* GSCAN_SUPPORT */
static int
_dhd_pno_suspend(dhd_pub_t *dhd)
{
int err;
int suspend = 1;
dhd_pno_status_info_t *_pno_state;
NULL_CHECK(dhd, "dhd is NULL", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
DHD_PNO(("%s enter\n", __FUNCTION__));
_pno_state = PNO_GET_PNOSTATE(dhd);
err = dhd_iovar(dhd, 0, "pfn_suspend", (char *)&suspend, sizeof(suspend), NULL, 0, TRUE);
if (err < 0) {
DHD_ERROR(("%s : failed to suspend pfn(error :%d)\n", __FUNCTION__, err));
goto exit;
}
_pno_state->pno_status = DHD_PNO_SUSPEND;
exit:
return err;
}
static int
_dhd_pno_enable(dhd_pub_t *dhd, int enable)
{
int err = BCME_OK;
dhd_pno_status_info_t *_pno_state;
NULL_CHECK(dhd, "dhd is NULL", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
_pno_state = PNO_GET_PNOSTATE(dhd);
DHD_PNO(("%s enter\n", __FUNCTION__));
if (enable & 0xfffe) {
DHD_ERROR(("%s invalid value\n", __FUNCTION__));
err = BCME_BADARG;
goto exit;
}
if (!dhd_support_sta_mode(dhd)) {
DHD_ERROR(("PNO is not allowed for non-STA mode"));
err = BCME_BADOPTION;
goto exit;
}
if (enable) {
if ((_pno_state->pno_mode & DHD_PNO_LEGACY_MODE) &&
dhd_is_associated(dhd, 0, NULL)) {
DHD_ERROR(("%s Legacy PNO mode cannot be enabled "
"in assoc mode , ignore it\n", __FUNCTION__));
err = BCME_BADOPTION;
goto exit;
}
}
/* Enable/Disable PNO */
err = dhd_iovar(dhd, 0, "pfn", (char *)&enable, sizeof(enable), NULL, 0, TRUE);
if (err < 0) {
DHD_ERROR(("%s : failed to execute pfn_set - %d\n", __FUNCTION__, err));
goto exit;
}
_pno_state->pno_status = (enable)?
DHD_PNO_ENABLED : DHD_PNO_DISABLED;
if (!enable)
_pno_state->pno_mode = DHD_PNO_NONE_MODE;
DHD_PNO(("%s set pno as %s\n",
__FUNCTION__, enable ? "Enable" : "Disable"));
exit:
return err;
}
static int
_dhd_pno_set(dhd_pub_t *dhd, const dhd_pno_params_t *pno_params, dhd_pno_mode_t mode)
{
int err = BCME_OK;
wl_pfn_param_t pfn_param;
dhd_pno_params_t *_params;
dhd_pno_status_info_t *_pno_state;
bool combined_scan = FALSE;
DHD_PNO(("%s enter\n", __FUNCTION__));
NULL_CHECK(dhd, "dhd is NULL", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
_pno_state = PNO_GET_PNOSTATE(dhd);
memset(&pfn_param, 0, sizeof(pfn_param));
/* set pfn parameters */
pfn_param.version = htod32(PFN_VERSION);
pfn_param.flags = ((PFN_LIST_ORDER << SORT_CRITERIA_BIT) |
(ENABLE << IMMEDIATE_SCAN_BIT) | (ENABLE << REPORT_SEPERATELY_BIT));
if (mode == DHD_PNO_LEGACY_MODE) {
/* check and set extra pno params */
if ((pno_params->params_legacy.pno_repeat != 0) ||
(pno_params->params_legacy.pno_freq_expo_max != 0)) {
pfn_param.flags |= htod16(ENABLE << ENABLE_ADAPTSCAN_BIT);
pfn_param.repeat = (uchar) (pno_params->params_legacy.pno_repeat);
pfn_param.exp = (uchar) (pno_params->params_legacy.pno_freq_expo_max);
}
/* set up pno scan fr */
if (pno_params->params_legacy.scan_fr != 0)
pfn_param.scan_freq = htod32(pno_params->params_legacy.scan_fr);
if (_pno_state->pno_mode & DHD_PNO_BATCH_MODE) {
DHD_PNO(("will enable combined scan with BATCHIG SCAN MODE\n"));
mode |= DHD_PNO_BATCH_MODE;
combined_scan = TRUE;
} else if (_pno_state->pno_mode & DHD_PNO_HOTLIST_MODE) {
DHD_PNO(("will enable combined scan with HOTLIST SCAN MODE\n"));
mode |= DHD_PNO_HOTLIST_MODE;
combined_scan = TRUE;
}
#ifdef GSCAN_SUPPORT
else if (_pno_state->pno_mode & DHD_PNO_GSCAN_MODE) {
DHD_PNO(("will enable combined scan with GSCAN SCAN MODE\n"));
mode |= DHD_PNO_GSCAN_MODE;
}
#endif /* GSCAN_SUPPORT */
}
if (mode & (DHD_PNO_BATCH_MODE | DHD_PNO_HOTLIST_MODE)) {
/* Scan frequency of 30 sec */
pfn_param.scan_freq = htod32(30);
/* slow adapt scan is off by default */
pfn_param.slow_freq = htod32(0);
/* RSSI margin of 30 dBm */
pfn_param.rssi_margin = htod16(PNO_RSSI_MARGIN_DBM);
/* Network timeout 60 sec */
pfn_param.lost_network_timeout = htod32(60);
/* best n = 2 by default */
pfn_param.bestn = DEFAULT_BESTN;
/* mscan m=0 by default, so not record best networks by default */
pfn_param.mscan = DEFAULT_MSCAN;
/* default repeat = 10 */
pfn_param.repeat = DEFAULT_REPEAT;
/* by default, maximum scan interval = 2^2
* scan_freq when adaptive scan is turned on
*/
pfn_param.exp = DEFAULT_EXP;
if (mode == DHD_PNO_BATCH_MODE) {
/* In case of BATCH SCAN */
if (pno_params->params_batch.bestn)
pfn_param.bestn = pno_params->params_batch.bestn;
if (pno_params->params_batch.scan_fr)
pfn_param.scan_freq = htod32(pno_params->params_batch.scan_fr);
if (pno_params->params_batch.mscan)
pfn_param.mscan = pno_params->params_batch.mscan;
/* enable broadcast scan */
pfn_param.flags |= (ENABLE << ENABLE_BD_SCAN_BIT);
} else if (mode == DHD_PNO_HOTLIST_MODE) {
/* In case of HOTLIST SCAN */
if (pno_params->params_hotlist.scan_fr)
pfn_param.scan_freq = htod32(pno_params->params_hotlist.scan_fr);
pfn_param.bestn = 0;
pfn_param.repeat = 0;
/* enable broadcast scan */
pfn_param.flags |= (ENABLE << ENABLE_BD_SCAN_BIT);
}
if (combined_scan) {
/* Disable Adaptive Scan */
pfn_param.flags &= ~(htod16(ENABLE << ENABLE_ADAPTSCAN_BIT));
pfn_param.flags |= (ENABLE << ENABLE_BD_SCAN_BIT);
pfn_param.repeat = 0;
pfn_param.exp = 0;
if (_pno_state->pno_mode & DHD_PNO_BATCH_MODE) {
/* In case of Legacy PNO + BATCH SCAN */
_params = &(_pno_state->pno_params_arr[INDEX_OF_BATCH_PARAMS]);
if (_params->params_batch.bestn)
pfn_param.bestn = _params->params_batch.bestn;
if (_params->params_batch.scan_fr)
pfn_param.scan_freq = htod32(_params->params_batch.scan_fr);
if (_params->params_batch.mscan)
pfn_param.mscan = _params->params_batch.mscan;
} else if (_pno_state->pno_mode & DHD_PNO_HOTLIST_MODE) {
/* In case of Legacy PNO + HOTLIST SCAN */
_params = &(_pno_state->pno_params_arr[INDEX_OF_HOTLIST_PARAMS]);
if (_params->params_hotlist.scan_fr)
pfn_param.scan_freq = htod32(_params->params_hotlist.scan_fr);
pfn_param.bestn = 0;
pfn_param.repeat = 0;
}
}
}
#ifdef GSCAN_SUPPORT
if (mode & DHD_PNO_GSCAN_MODE) {
uint32 lost_network_timeout;
pfn_param.scan_freq = htod32(pno_params->params_gscan.scan_fr);
if (pno_params->params_gscan.mscan) {
pfn_param.bestn = pno_params->params_gscan.bestn;
pfn_param.mscan = pno_params->params_gscan.mscan;
pfn_param.flags |= (ENABLE << ENABLE_BD_SCAN_BIT);
}
/* RSSI margin of 30 dBm */
pfn_param.rssi_margin = htod16(PNO_RSSI_MARGIN_DBM);
pfn_param.repeat = 0;
pfn_param.exp = 0;
pfn_param.slow_freq = 0;
pfn_param.flags |= htod16(ENABLE << ENABLE_ADAPTSCAN_BIT);
if (_pno_state->pno_mode & DHD_PNO_LEGACY_MODE) {
dhd_pno_params_t *params;
params = &(_pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS]);
pfn_param.scan_freq = gcd(pno_params->params_gscan.scan_fr,
params->params_legacy.scan_fr);
if ((params->params_legacy.pno_repeat != 0) ||
(params->params_legacy.pno_freq_expo_max != 0)) {
pfn_param.repeat = (uchar) (params->params_legacy.pno_repeat);
pfn_param.exp = (uchar) (params->params_legacy.pno_freq_expo_max);
}
}
lost_network_timeout = (pno_params->params_gscan.max_ch_bucket_freq *
pfn_param.scan_freq *
pno_params->params_gscan.lost_ap_window);
if (lost_network_timeout) {
pfn_param.lost_network_timeout = htod32(MIN(lost_network_timeout,
GSCAN_MIN_BSSID_TIMEOUT));
} else {
pfn_param.lost_network_timeout = htod32(GSCAN_MIN_BSSID_TIMEOUT);
}
} else
#endif /* GSCAN_SUPPORT */
{
if (pfn_param.scan_freq < htod32(PNO_SCAN_MIN_FW_SEC) ||
pfn_param.scan_freq > htod32(PNO_SCAN_MAX_FW_SEC)) {
DHD_ERROR(("%s pno freq(%d sec) is not valid \n",
__FUNCTION__, PNO_SCAN_MIN_FW_SEC));
err = BCME_BADARG;
goto exit;
}
}
err = dhd_set_rand_mac_oui(dhd);
/* Ignore if chip doesnt support the feature */
if (err < 0 && err != BCME_UNSUPPORTED) {
DHD_ERROR(("%s : failed to set random mac for PNO scan, %d\n", __FUNCTION__, err));
goto exit;
}
#ifdef GSCAN_SUPPORT
if (mode == DHD_PNO_BATCH_MODE ||
((mode & DHD_PNO_GSCAN_MODE) && pno_params->params_gscan.mscan)) {
#else
if (mode == DHD_PNO_BATCH_MODE) {
#endif /* GSCAN_SUPPORT */
int _tmp = pfn_param.bestn;
/* set bestn to calculate the max mscan which firmware supports */
err = dhd_iovar(dhd, 0, "pfnmem", (char *)&_tmp, sizeof(_tmp), NULL, 0, TRUE);
if (err < 0) {
DHD_ERROR(("%s : failed to set pfnmem\n", __FUNCTION__));
goto exit;
}
/* get max mscan which the firmware supports */
err = dhd_iovar(dhd, 0, "pfnmem", NULL, 0, (char *)&_tmp, sizeof(_tmp), FALSE);
if (err < 0) {
DHD_ERROR(("%s : failed to get pfnmem\n", __FUNCTION__));
goto exit;
}
pfn_param.mscan = MIN(pfn_param.mscan, _tmp);
DHD_PNO((" returned mscan : %d, set bestn : %d mscan %d\n", _tmp, pfn_param.bestn,
pfn_param.mscan));
}
err = dhd_iovar(dhd, 0, "pfn_set", (char *)&pfn_param, sizeof(pfn_param), NULL, 0, TRUE);
if (err < 0) {
DHD_ERROR(("%s : failed to execute pfn_set %d\n", __FUNCTION__, err));
goto exit;
}
/* need to return mscan if this is for batch scan instead of err */
err = (mode == DHD_PNO_BATCH_MODE)? pfn_param.mscan : err;
exit:
return err;
}
static int
_dhd_pno_add_ssid(dhd_pub_t *dhd, struct list_head* ssid_list, int nssid)
{
int err = BCME_OK;
int i = 0, mem_needed;
wl_pfn_t *pfn_elem_buf;
struct dhd_pno_ssid *iter, *next;
NULL_CHECK(dhd, "dhd is NULL", err);
if (!nssid) {
NULL_CHECK(ssid_list, "ssid list is NULL", err);
return BCME_ERROR;
}
mem_needed = (sizeof(wl_pfn_t) * nssid);
pfn_elem_buf = (wl_pfn_t *) MALLOCZ(dhd->osh, mem_needed);
if (!pfn_elem_buf) {
DHD_ERROR(("%s: Can't malloc %d bytes!\n", __FUNCTION__, mem_needed));
return BCME_NOMEM;
}
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
list_for_each_entry_safe(iter, next, ssid_list, list) {
GCC_DIAGNOSTIC_POP();
pfn_elem_buf[i].infra = htod32(1);
pfn_elem_buf[i].auth = htod32(DOT11_OPEN_SYSTEM);
pfn_elem_buf[i].wpa_auth = htod32(iter->wpa_auth);
pfn_elem_buf[i].flags = htod32(iter->flags);
if (iter->hidden)
pfn_elem_buf[i].flags |= htod32(ENABLE << WL_PFN_HIDDEN_BIT);
/* If a single RSSI threshold is defined, use that */
#ifdef PNO_MIN_RSSI_TRIGGER
pfn_elem_buf[i].flags |= ((PNO_MIN_RSSI_TRIGGER & 0xFF) << WL_PFN_RSSI_SHIFT);
#else
pfn_elem_buf[i].flags |= ((iter->rssi_thresh & 0xFF) << WL_PFN_RSSI_SHIFT);
#endif /* PNO_MIN_RSSI_TRIGGER */
memcpy((char *)pfn_elem_buf[i].ssid.SSID, iter->SSID,
iter->SSID_len);
pfn_elem_buf[i].ssid.SSID_len = iter->SSID_len;
DHD_PNO(("%s size = %d hidden = %d flags = %x rssi_thresh %d\n",
iter->SSID, iter->SSID_len, iter->hidden,
iter->flags, iter->rssi_thresh));
if (++i >= nssid) {
/* shouldn't happen */
break;
}
}
err = dhd_iovar(dhd, 0, "pfn_add", (char *)pfn_elem_buf, mem_needed, NULL, 0, TRUE);
if (err < 0) {
DHD_ERROR(("%s : failed to execute pfn_add\n", __FUNCTION__));
}
MFREE(dhd->osh, pfn_elem_buf, mem_needed);
return err;
}
/* qsort compare function */
static int
_dhd_pno_cmpfunc(const void *a, const void *b)
{
return (*(const uint16*)a - *(const uint16*)b);
}
static int
_dhd_pno_chan_merge(uint16 *d_chan_list, int *nchan,
uint16 *chan_list1, int nchan1, uint16 *chan_list2, int nchan2)
{
int err = BCME_OK;
int i = 0, j = 0, k = 0;
uint16 tmp;
NULL_CHECK(d_chan_list, "d_chan_list is NULL", err);
NULL_CHECK(nchan, "nchan is NULL", err);
NULL_CHECK(chan_list1, "chan_list1 is NULL", err);
NULL_CHECK(chan_list2, "chan_list2 is NULL", err);
/* chan_list1 and chan_list2 should be sorted at first */
while (i < nchan1 && j < nchan2) {
tmp = chan_list1[i] < chan_list2[j]?
chan_list1[i++] : chan_list2[j++];
for (; i < nchan1 && chan_list1[i] == tmp; i++);
for (; j < nchan2 && chan_list2[j] == tmp; j++);
d_chan_list[k++] = tmp;
}
while (i < nchan1) {
tmp = chan_list1[i++];
for (; i < nchan1 && chan_list1[i] == tmp; i++);
d_chan_list[k++] = tmp;
}
while (j < nchan2) {
tmp = chan_list2[j++];
for (; j < nchan2 && chan_list2[j] == tmp; j++);
d_chan_list[k++] = tmp;
}
*nchan = k;
return err;
}
static int
_dhd_pno_get_channels(dhd_pub_t *dhd, uint16 *d_chan_list,
int *nchan, uint8 band, bool skip_dfs)
{
int err = BCME_OK;
int i, j;
uint32 chan_buf[WL_NUMCHANNELS + 1];
wl_uint32_list_t *list;
NULL_CHECK(dhd, "dhd is NULL", err);
if (*nchan) {
NULL_CHECK(d_chan_list, "d_chan_list is NULL", err);
}
memset(&chan_buf, 0, sizeof(chan_buf));
list = (wl_uint32_list_t *) (void *)chan_buf;
list->count = htod32(WL_NUMCHANNELS);
err = dhd_wl_ioctl_cmd(dhd, WLC_GET_VALID_CHANNELS, chan_buf, sizeof(chan_buf), FALSE, 0);
if (err < 0) {
DHD_ERROR(("failed to get channel list (err: %d)\n", err));
return err;
}
for (i = 0, j = 0; i < dtoh32(list->count) && i < *nchan; i++) {
if (IS_2G_CHANNEL(dtoh32(list->element[i]))) {
if (!(band & WLC_BAND_2G)) {
/* Skip, if not 2g */
continue;
}
/* fall through to include the channel */
} else if (IS_5G_CHANNEL(dtoh32(list->element[i]))) {
bool dfs_channel = is_dfs(dhd, dtoh32(list->element[i]));
if ((skip_dfs && dfs_channel) ||
(!(band & WLC_BAND_5G) && !dfs_channel)) {
/* Skip the channel if:
* the DFS bit is NOT set & the channel is a dfs channel
* the band 5G is not set & the channel is a non DFS 5G channel
*/
continue;
}
/* fall through to include the channel */
} else {
/* Not in range. Bad channel */
DHD_ERROR(("Not in range. bad channel\n"));
*nchan = 0;
return BCME_BADCHAN;
}
/* Include the channel */
d_chan_list[j++] = (uint16) dtoh32(list->element[i]);
}
*nchan = j;
return err;
}
static int
_dhd_pno_convert_format(dhd_pub_t *dhd, struct dhd_pno_batch_params *params_batch,
char *buf, int nbufsize)
{
int err = BCME_OK;
int bytes_written = 0, nreadsize = 0;
int t_delta = 0;
int nleftsize = nbufsize;
uint8 cnt = 0;
char *bp = buf;
char eabuf[ETHER_ADDR_STR_LEN];
#ifdef PNO_DEBUG
char *_base_bp;
char msg[150];
#endif // endif
dhd_pno_bestnet_entry_t *iter, *next;
dhd_pno_scan_results_t *siter, *snext;
dhd_pno_best_header_t *phead, *pprev;
NULL_CHECK(params_batch, "params_batch is NULL", err);
if (nbufsize > 0)
NULL_CHECK(buf, "buf is NULL", err);
/* initialize the buffer */
memset(buf, 0, nbufsize);
DHD_PNO(("%s enter \n", __FUNCTION__));
/* # of scans */
if (!params_batch->get_batch.batch_started) {
bp += nreadsize = snprintf(bp, nleftsize, "scancount=%d\n",
params_batch->get_batch.expired_tot_scan_cnt);
nleftsize -= nreadsize;
params_batch->get_batch.batch_started = TRUE;
}
DHD_PNO(("%s scancount %d\n", __FUNCTION__, params_batch->get_batch.expired_tot_scan_cnt));
/* preestimate scan count until which scan result this report is going to end */
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
list_for_each_entry_safe(siter, snext,
¶ms_batch->get_batch.expired_scan_results_list, list) {
GCC_DIAGNOSTIC_POP();
phead = siter->bestnetheader;
while (phead != NULL) {
/* if left_size is less than bestheader total size , stop this */
if (nleftsize <=
(phead->tot_size + phead->tot_cnt * ENTRY_OVERHEAD))
goto exit;
/* increase scan count */
cnt++;
/* # best of each scan */
DHD_PNO(("\n<loop : %d, apcount %d>\n", cnt - 1, phead->tot_cnt));
/* attribute of the scan */
if (phead->reason & PNO_STATUS_ABORT_MASK) {
bp += nreadsize = snprintf(bp, nleftsize, "trunc\n");
nleftsize -= nreadsize;
}
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
list_for_each_entry_safe(iter, next,
&phead->entry_list, list) {
GCC_DIAGNOSTIC_POP();
t_delta = jiffies_to_msecs(jiffies - iter->recorded_time);
#ifdef PNO_DEBUG
_base_bp = bp;
memset(msg, 0, sizeof(msg));
#endif // endif
/* BSSID info */
bp += nreadsize = snprintf(bp, nleftsize, "bssid=%s\n",
bcm_ether_ntoa((const struct ether_addr *)&iter->BSSID, eabuf));
nleftsize -= nreadsize;
/* SSID */
bp += nreadsize = snprintf(bp, nleftsize, "ssid=%s\n", iter->SSID);
nleftsize -= nreadsize;
/* channel */
bp += nreadsize = snprintf(bp, nleftsize, "freq=%d\n",
wf_channel2mhz(iter->channel,
iter->channel <= CH_MAX_2G_CHANNEL?
WF_CHAN_FACTOR_2_4_G : WF_CHAN_FACTOR_5_G));
nleftsize -= nreadsize;
/* RSSI */
bp += nreadsize = snprintf(bp, nleftsize, "level=%d\n", iter->RSSI);
nleftsize -= nreadsize;
/* add the time consumed in Driver to the timestamp of firmware */
iter->timestamp += t_delta;
bp += nreadsize = snprintf(bp, nleftsize,
"age=%d\n", iter->timestamp);
nleftsize -= nreadsize;
/* RTT0 */
bp += nreadsize = snprintf(bp, nleftsize, "dist=%d\n",
(iter->rtt0 == 0)? -1 : iter->rtt0);
nleftsize -= nreadsize;
/* RTT1 */
bp += nreadsize = snprintf(bp, nleftsize, "distSd=%d\n",
(iter->rtt0 == 0)? -1 : iter->rtt1);
nleftsize -= nreadsize;
bp += nreadsize = snprintf(bp, nleftsize, "%s", AP_END_MARKER);
nleftsize -= nreadsize;
list_del(&iter->list);
MFREE(dhd->osh, iter, BESTNET_ENTRY_SIZE);
#ifdef PNO_DEBUG
memcpy(msg, _base_bp, bp - _base_bp);
DHD_PNO(("Entry : \n%s", msg));
#endif // endif
}
bp += nreadsize = snprintf(bp, nleftsize, "%s", SCAN_END_MARKER);
DHD_PNO(("%s", SCAN_END_MARKER));
nleftsize -= nreadsize;
pprev = phead;
/* reset the header */
siter->bestnetheader = phead = phead->next;
MFREE(dhd->osh, pprev, BEST_HEADER_SIZE);
siter->cnt_header--;
}
if (phead == NULL) {
/* we store all entry in this scan , so it is ok to delete */
list_del(&siter->list);
MFREE(dhd->osh, siter, SCAN_RESULTS_SIZE);
}
}
exit:
if (cnt < params_batch->get_batch.expired_tot_scan_cnt) {
DHD_ERROR(("Buffer size is small to save all batch entry,"
" cnt : %d (remained_scan_cnt): %d\n",
cnt, params_batch->get_batch.expired_tot_scan_cnt - cnt));
}
params_batch->get_batch.expired_tot_scan_cnt -= cnt;
/* set FALSE only if the link list is empty after returning the data */
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
if (list_empty(¶ms_batch->get_batch.expired_scan_results_list)) {
GCC_DIAGNOSTIC_POP();
params_batch->get_batch.batch_started = FALSE;
bp += snprintf(bp, nleftsize, "%s", RESULTS_END_MARKER);
DHD_PNO(("%s", RESULTS_END_MARKER));
DHD_PNO(("%s : Getting the batching data is complete\n", __FUNCTION__));
}
/* return used memory in buffer */
bytes_written = (int32)(bp - buf);
return bytes_written;
}
static int
_dhd_pno_clear_all_batch_results(dhd_pub_t *dhd, struct list_head *head, bool only_last)
{
int err = BCME_OK;
int removed_scan_cnt = 0;
dhd_pno_scan_results_t *siter, *snext;
dhd_pno_best_header_t *phead, *pprev;
dhd_pno_bestnet_entry_t *iter, *next;
NULL_CHECK(dhd, "dhd is NULL", err);
NULL_CHECK(head, "head is NULL", err);
NULL_CHECK(head->next, "head->next is NULL", err);
DHD_PNO(("%s enter\n", __FUNCTION__));
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
list_for_each_entry_safe(siter, snext,
head, list) {
if (only_last) {
/* in case that we need to delete only last one */
if (!list_is_last(&siter->list, head)) {
/* skip if the one is not last */
continue;
}
}
/* delete all data belong if the one is last */
phead = siter->bestnetheader;
while (phead != NULL) {
removed_scan_cnt++;
list_for_each_entry_safe(iter, next,
&phead->entry_list, list) {
list_del(&iter->list);
MFREE(dhd->osh, iter, BESTNET_ENTRY_SIZE);
}
pprev = phead;
phead = phead->next;
MFREE(dhd->osh, pprev, BEST_HEADER_SIZE);
}
if (phead == NULL) {
/* it is ok to delete top node */
list_del(&siter->list);
MFREE(dhd->osh, siter, SCAN_RESULTS_SIZE);
}
}
GCC_DIAGNOSTIC_POP();
return removed_scan_cnt;
}
static int
_dhd_pno_cfg(dhd_pub_t *dhd, uint16 *channel_list, int nchan)
{
int err = BCME_OK;
int i = 0;
wl_pfn_cfg_t pfncfg_param;
NULL_CHECK(dhd, "dhd is NULL", err);
if (nchan) {
NULL_CHECK(channel_list, "nchan is NULL", err);
}
if (nchan > WL_NUMCHANNELS) {
return BCME_RANGE;
}
DHD_PNO(("%s enter : nchan : %d\n", __FUNCTION__, nchan));
memset(&pfncfg_param, 0, sizeof(wl_pfn_cfg_t));
/* Setup default values */
pfncfg_param.reporttype = htod32(WL_PFN_REPORT_ALLNET);
pfncfg_param.channel_num = htod32(0);
for (i = 0; i < nchan; i++)
pfncfg_param.channel_list[i] = channel_list[i];
pfncfg_param.channel_num = htod32(nchan);
err = dhd_iovar(dhd, 0, "pfn_cfg", (char *)&pfncfg_param, sizeof(pfncfg_param), NULL, 0,
TRUE);
if (err < 0) {
DHD_ERROR(("%s : failed to execute pfn_cfg\n", __FUNCTION__));
goto exit;
}
exit:
return err;
}
static int
_dhd_pno_reinitialize_prof(dhd_pub_t *dhd, dhd_pno_params_t *params, dhd_pno_mode_t mode)
{
int err = BCME_OK;
dhd_pno_status_info_t *_pno_state;
NULL_CHECK(dhd, "dhd is NULL\n", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL\n", err);
DHD_PNO(("%s enter\n", __FUNCTION__));
_pno_state = PNO_GET_PNOSTATE(dhd);
mutex_lock(&_pno_state->pno_mutex);
switch (mode) {
case DHD_PNO_LEGACY_MODE: {
struct dhd_pno_ssid *iter, *next;
if (params->params_legacy.nssid > 0) {
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
list_for_each_entry_safe(iter, next,
¶ms->params_legacy.ssid_list, list) {
GCC_DIAGNOSTIC_POP();
list_del(&iter->list);
MFREE(dhd->osh, iter, sizeof(struct dhd_pno_ssid));
}
}
params->params_legacy.nssid = 0;
params->params_legacy.scan_fr = 0;
params->params_legacy.pno_freq_expo_max = 0;
params->params_legacy.pno_repeat = 0;
params->params_legacy.nchan = 0;
memset(params->params_legacy.chan_list, 0,
sizeof(params->params_legacy.chan_list));
break;
}
case DHD_PNO_BATCH_MODE: {
params->params_batch.scan_fr = 0;
params->params_batch.mscan = 0;
params->params_batch.nchan = 0;
params->params_batch.rtt = 0;
params->params_batch.bestn = 0;
params->params_batch.nchan = 0;
params->params_batch.band = WLC_BAND_AUTO;
memset(params->params_batch.chan_list, 0,
sizeof(params->params_batch.chan_list));
params->params_batch.get_batch.batch_started = FALSE;
params->params_batch.get_batch.buf = NULL;
params->params_batch.get_batch.bufsize = 0;
params->params_batch.get_batch.reason = 0;
_dhd_pno_clear_all_batch_results(dhd,
¶ms->params_batch.get_batch.scan_results_list, FALSE);
_dhd_pno_clear_all_batch_results(dhd,
¶ms->params_batch.get_batch.expired_scan_results_list, FALSE);
params->params_batch.get_batch.tot_scan_cnt = 0;
params->params_batch.get_batch.expired_tot_scan_cnt = 0;
params->params_batch.get_batch.top_node_cnt = 0;
INIT_LIST_HEAD(¶ms->params_batch.get_batch.scan_results_list);
INIT_LIST_HEAD(¶ms->params_batch.get_batch.expired_scan_results_list);
break;
}
case DHD_PNO_HOTLIST_MODE: {
struct dhd_pno_bssid *iter, *next;
if (params->params_hotlist.nbssid > 0) {
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
list_for_each_entry_safe(iter, next,
¶ms->params_hotlist.bssid_list, list) {
GCC_DIAGNOSTIC_POP();
list_del(&iter->list);
MFREE(dhd->osh, iter, sizeof(struct dhd_pno_ssid));
}
}
params->params_hotlist.scan_fr = 0;
params->params_hotlist.nbssid = 0;
params->params_hotlist.nchan = 0;
params->params_batch.band = WLC_BAND_AUTO;
memset(params->params_hotlist.chan_list, 0,
sizeof(params->params_hotlist.chan_list));
break;
}
default:
DHD_ERROR(("%s : unknown mode : %d\n", __FUNCTION__, mode));
break;
}
mutex_unlock(&_pno_state->pno_mutex);
return err;
}
static int
_dhd_pno_add_bssid(dhd_pub_t *dhd, wl_pfn_bssid_t *p_pfn_bssid, int nbssid)
{
int err = BCME_OK;
NULL_CHECK(dhd, "dhd is NULL", err);
if (nbssid) {
NULL_CHECK(p_pfn_bssid, "bssid list is NULL", err);
}
err = dhd_iovar(dhd, 0, "pfn_add_bssid", (char *)p_pfn_bssid,
sizeof(wl_pfn_bssid_t) * nbssid, NULL, 0, TRUE);
if (err < 0) {
DHD_ERROR(("%s : failed to execute pfn_cfg\n", __FUNCTION__));
goto exit;
}
exit:
return err;
}
int
dhd_pno_stop_for_ssid(dhd_pub_t *dhd)
{
int err = BCME_OK;
uint32 mode = 0, cnt = 0;
dhd_pno_status_info_t *_pno_state;
dhd_pno_params_t *_params = NULL;
wl_pfn_bssid_t *p_pfn_bssid = NULL, *tmp_bssid;
NULL_CHECK(dhd, "dev is NULL", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
_pno_state = PNO_GET_PNOSTATE(dhd);
if (!(_pno_state->pno_mode & DHD_PNO_LEGACY_MODE)) {
DHD_ERROR(("%s : LEGACY PNO MODE is not enabled\n", __FUNCTION__));
goto exit;
}
DHD_PNO(("%s enter\n", __FUNCTION__));
/* If pno mode is PNO_LEGACY_MODE clear the pno values and unset the DHD_PNO_LEGACY_MODE */
_params = &_pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS];
_dhd_pno_reinitialize_prof(dhd, _params, DHD_PNO_LEGACY_MODE);
_pno_state->pno_mode &= ~DHD_PNO_LEGACY_MODE;
#ifdef GSCAN_SUPPORT
if (_pno_state->pno_mode & DHD_PNO_GSCAN_MODE) {
struct dhd_pno_gscan_params *gscan_params;
_params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS];
gscan_params = &_params->params_gscan;
if (gscan_params->mscan) {
/* retrieve the batching data from firmware into host */
err = dhd_wait_batch_results_complete(dhd);
if (err != BCME_OK)
goto exit;
}
/* save current pno_mode before calling dhd_pno_clean */
mutex_lock(&_pno_state->pno_mutex);
mode = _pno_state->pno_mode;
err = dhd_pno_clean(dhd);
if (err < 0) {
DHD_ERROR(("%s : failed to call dhd_pno_clean (err: %d)\n",
__FUNCTION__, err));
mutex_unlock(&_pno_state->pno_mutex);
goto exit;
}
/* restore previous pno_mode */
_pno_state->pno_mode = mode;
mutex_unlock(&_pno_state->pno_mutex);
/* Restart gscan */
err = dhd_pno_initiate_gscan_request(dhd, 1, 0);
goto exit;
}
#endif /* GSCAN_SUPPORT */
/* restart Batch mode if the batch mode is on */
if (_pno_state->pno_mode & (DHD_PNO_BATCH_MODE | DHD_PNO_HOTLIST_MODE)) {
/* retrieve the batching data from firmware into host */
dhd_pno_get_for_batch(dhd, NULL, 0, PNO_STATUS_DISABLE);
/* save current pno_mode before calling dhd_pno_clean */
mode = _pno_state->pno_mode;
err = dhd_pno_clean(dhd);
if (err < 0) {
err = BCME_ERROR;
DHD_ERROR(("%s : failed to call dhd_pno_clean (err: %d)\n",
__FUNCTION__, err));
goto exit;
}
/* restore previous pno_mode */
_pno_state->pno_mode = mode;
if (_pno_state->pno_mode & DHD_PNO_BATCH_MODE) {
_params = &(_pno_state->pno_params_arr[INDEX_OF_BATCH_PARAMS]);
/* restart BATCH SCAN */
err = dhd_pno_set_for_batch(dhd, &_params->params_batch);
if (err < 0) {
_pno_state->pno_mode &= ~DHD_PNO_BATCH_MODE;
DHD_ERROR(("%s : failed to restart batch scan(err: %d)\n",
__FUNCTION__, err));
goto exit;
}
} else if (_pno_state->pno_mode & DHD_PNO_HOTLIST_MODE) {
/* restart HOTLIST SCAN */
struct dhd_pno_bssid *iter, *next;
_params = &(_pno_state->pno_params_arr[INDEX_OF_HOTLIST_PARAMS]);
p_pfn_bssid = MALLOCZ(dhd->osh, sizeof(wl_pfn_bssid_t) *
_params->params_hotlist.nbssid);
if (p_pfn_bssid == NULL) {
DHD_ERROR(("%s : failed to allocate wl_pfn_bssid_t array"
" (count: %d)",
__FUNCTION__, _params->params_hotlist.nbssid));
err = BCME_ERROR;
_pno_state->pno_mode &= ~DHD_PNO_HOTLIST_MODE;
goto exit;
}
/* convert dhd_pno_bssid to wl_pfn_bssid */
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
cnt = 0;
tmp_bssid = p_pfn_bssid;
list_for_each_entry_safe(iter, next,
&_params->params_hotlist.bssid_list, list) {
GCC_DIAGNOSTIC_POP();
memcpy(&tmp_bssid->macaddr,
&iter->macaddr, ETHER_ADDR_LEN);
tmp_bssid->flags = iter->flags;
if (cnt < _params->params_hotlist.nbssid) {
tmp_bssid++;
cnt++;
} else {
DHD_ERROR(("%s: Allocated insufficient memory\n",
__FUNCTION__));
break;
}
}
err = dhd_pno_set_for_hotlist(dhd, p_pfn_bssid, &_params->params_hotlist);
if (err < 0) {
_pno_state->pno_mode &= ~DHD_PNO_HOTLIST_MODE;
DHD_ERROR(("%s : failed to restart hotlist scan(err: %d)\n",
__FUNCTION__, err));
goto exit;
}
}
} else {
err = dhd_pno_clean(dhd);
if (err < 0) {
DHD_ERROR(("%s : failed to call dhd_pno_clean (err: %d)\n",
__FUNCTION__, err));
goto exit;
}
}
exit:
if (p_pfn_bssid) {
MFREE(dhd->osh, p_pfn_bssid, sizeof(wl_pfn_bssid_t) *
_params->params_hotlist.nbssid);
}
return err;
}
int
dhd_pno_enable(dhd_pub_t *dhd, int enable)
{
int err = BCME_OK;
NULL_CHECK(dhd, "dhd is NULL", err);
DHD_PNO(("%s enter\n", __FUNCTION__));
return (_dhd_pno_enable(dhd, enable));
}
static int
dhd_pno_add_to_ssid_list(dhd_pub_t *dhd, struct list_head *ptr, wlc_ssid_ext_t *ssid_list,
int nssid, int *num_ssid_added)
{
int ret = BCME_OK;
int i;
struct dhd_pno_ssid *_pno_ssid;
for (i = 0; i < nssid; i++) {
if (ssid_list[i].SSID_len > DOT11_MAX_SSID_LEN) {
DHD_ERROR(("%s : Invalid SSID length %d\n",
__FUNCTION__, ssid_list[i].SSID_len));
ret = BCME_ERROR;
goto exit;
}
/* Check for broadcast ssid */
if (!ssid_list[i].SSID_len) {
DHD_ERROR(("%d: Broadcast SSID is illegal for PNO setting\n", i));
ret = BCME_ERROR;
goto exit;
}
_pno_ssid = (struct dhd_pno_ssid *)MALLOCZ(dhd->osh,
sizeof(struct dhd_pno_ssid));
if (_pno_ssid == NULL) {
DHD_ERROR(("%s : failed to allocate struct dhd_pno_ssid\n",
__FUNCTION__));
ret = BCME_ERROR;
goto exit;
}
_pno_ssid->SSID_len = ssid_list[i].SSID_len;
_pno_ssid->hidden = ssid_list[i].hidden;
_pno_ssid->rssi_thresh = ssid_list[i].rssi_thresh;
_pno_ssid->flags = ssid_list[i].flags;
_pno_ssid->wpa_auth = WPA_AUTH_PFN_ANY;
memcpy(_pno_ssid->SSID, ssid_list[i].SSID, _pno_ssid->SSID_len);
list_add_tail(&_pno_ssid->list, ptr);
}
exit:
*num_ssid_added = i;
return ret;
}
int
dhd_pno_set_for_ssid(dhd_pub_t *dhd, wlc_ssid_ext_t* ssid_list, int nssid,
uint16 scan_fr, int pno_repeat, int pno_freq_expo_max, uint16 *channel_list, int nchan)
{
dhd_pno_status_info_t *_pno_state;
dhd_pno_params_t *_params;
struct dhd_pno_legacy_params *params_legacy;
int err = BCME_OK;
if (!dhd || !dhd->pno_state) {
DHD_ERROR(("%s: PNO Not enabled/Not ready\n", __FUNCTION__));
return BCME_NOTREADY;
}
if (!dhd_support_sta_mode(dhd)) {
return BCME_BADOPTION;
}
_pno_state = PNO_GET_PNOSTATE(dhd);
_params = &(_pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS]);
params_legacy = &(_params->params_legacy);
err = _dhd_pno_reinitialize_prof(dhd, _params, DHD_PNO_LEGACY_MODE);
if (err < 0) {
DHD_ERROR(("%s : failed to reinitialize profile (err %d)\n",
__FUNCTION__, err));
return err;
}
INIT_LIST_HEAD(¶ms_legacy->ssid_list);
if (dhd_pno_add_to_ssid_list(dhd, ¶ms_legacy->ssid_list, ssid_list,
nssid, ¶ms_legacy->nssid) < 0) {
_dhd_pno_reinitialize_prof(dhd, _params, DHD_PNO_LEGACY_MODE);
return BCME_ERROR;
}
DHD_PNO(("%s enter : nssid %d, scan_fr :%d, pno_repeat :%d,"
"pno_freq_expo_max: %d, nchan :%d\n", __FUNCTION__,
params_legacy->nssid, scan_fr, pno_repeat, pno_freq_expo_max, nchan));
return dhd_pno_set_legacy_pno(dhd, scan_fr, pno_repeat,
pno_freq_expo_max, channel_list, nchan);
}
static int
dhd_pno_set_legacy_pno(dhd_pub_t *dhd, uint16 scan_fr, int pno_repeat,
int pno_freq_expo_max, uint16 *channel_list, int nchan)
{
dhd_pno_params_t *_params;
dhd_pno_params_t *_params2;
dhd_pno_status_info_t *_pno_state;
uint16 _chan_list[WL_NUMCHANNELS];
int32 tot_nchan = 0;
int err = BCME_OK;
int i, nssid;
int mode = 0;
struct list_head *ssid_list;
_pno_state = PNO_GET_PNOSTATE(dhd);
_params = &(_pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS]);
/* If GSCAN is also ON will handle this down below */
#ifdef GSCAN_SUPPORT
if (_pno_state->pno_mode & DHD_PNO_LEGACY_MODE &&
!(_pno_state->pno_mode & DHD_PNO_GSCAN_MODE)) {
#else
if (_pno_state->pno_mode & DHD_PNO_LEGACY_MODE) {
#endif /* GSCAN_SUPPORT */
DHD_ERROR(("%s : Legacy PNO mode was already started, "
"will disable previous one to start new one\n", __FUNCTION__));
err = dhd_pno_stop_for_ssid(dhd);
if (err < 0) {
DHD_ERROR(("%s : failed to stop legacy PNO (err %d)\n",
__FUNCTION__, err));
return err;
}
}
_pno_state->pno_mode |= DHD_PNO_LEGACY_MODE;
memset(_chan_list, 0, sizeof(_chan_list));
tot_nchan = MIN(nchan, WL_NUMCHANNELS);
if (tot_nchan > 0 && channel_list) {
for (i = 0; i < tot_nchan; i++)
_params->params_legacy.chan_list[i] = _chan_list[i] = channel_list[i];
}
#ifdef GSCAN_SUPPORT
else {
tot_nchan = WL_NUMCHANNELS;
err = _dhd_pno_get_channels(dhd, _chan_list, &tot_nchan,
(WLC_BAND_2G | WLC_BAND_5G), FALSE);
if (err < 0) {
tot_nchan = 0;
DHD_PNO(("Could not get channel list for PNO SSID\n"));
} else {
for (i = 0; i < tot_nchan; i++)
_params->params_legacy.chan_list[i] = _chan_list[i];
}
}
#endif /* GSCAN_SUPPORT */
if (_pno_state->pno_mode & (DHD_PNO_BATCH_MODE | DHD_PNO_HOTLIST_MODE)) {
DHD_PNO(("BATCH SCAN is on progress in firmware\n"));
/* retrieve the batching data from firmware into host */
dhd_pno_get_for_batch(dhd, NULL, 0, PNO_STATUS_DISABLE);
/* store current pno_mode before disabling pno */
mode = _pno_state->pno_mode;
err = _dhd_pno_enable(dhd, PNO_OFF);
if (err < 0) {
DHD_ERROR(("%s : failed to disable PNO\n", __FUNCTION__));
goto exit;
}
/* restore the previous mode */
_pno_state->pno_mode = mode;
/* use superset of channel list between two mode */
if (_pno_state->pno_mode & DHD_PNO_BATCH_MODE) {
_params2 = &(_pno_state->pno_params_arr[INDEX_OF_BATCH_PARAMS]);
if (_params2->params_batch.nchan > 0 && tot_nchan > 0) {
err = _dhd_pno_chan_merge(_chan_list, &tot_nchan,
&_params2->params_batch.chan_list[0],
_params2->params_batch.nchan,
&channel_list[0], tot_nchan);
if (err < 0) {
DHD_ERROR(("%s : failed to merge channel list"
" between legacy and batch\n",
__FUNCTION__));
goto exit;
}
} else {
DHD_PNO(("superset channel will use"
" all channels in firmware\n"));
}
} else if (_pno_state->pno_mode & DHD_PNO_HOTLIST_MODE) {
_params2 = &(_pno_state->pno_params_arr[INDEX_OF_HOTLIST_PARAMS]);
if (_params2->params_hotlist.nchan > 0 && tot_nchan > 0) {
err = _dhd_pno_chan_merge(_chan_list, &tot_nchan,
&_params2->params_hotlist.chan_list[0],
_params2->params_hotlist.nchan,
&channel_list[0], tot_nchan);
if (err < 0) {
DHD_ERROR(("%s : failed to merge channel list"
" between legacy and hotlist\n",
__FUNCTION__));
goto exit;
}
}
}
}
_params->params_legacy.scan_fr = scan_fr;
_params->params_legacy.pno_repeat = pno_repeat;
_params->params_legacy.pno_freq_expo_max = pno_freq_expo_max;
_params->params_legacy.nchan = tot_nchan;
ssid_list = &_params->params_legacy.ssid_list;
nssid = _params->params_legacy.nssid;
#ifdef GSCAN_SUPPORT
/* dhd_pno_initiate_gscan_request will handle simultaneous Legacy PNO and GSCAN */
if (_pno_state->pno_mode & DHD_PNO_GSCAN_MODE) {
struct dhd_pno_gscan_params *gscan_params;
gscan_params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS].params_gscan;
/* ePNO and Legacy PNO do not co-exist */
if (gscan_params->epno_cfg.num_epno_ssid) {
DHD_PNO(("ePNO and Legacy PNO do not co-exist\n"));
err = BCME_EPERM;
goto exit;
}
DHD_PNO(("GSCAN mode is ON! Will restart GSCAN+Legacy PNO\n"));
err = dhd_pno_initiate_gscan_request(dhd, 1, 0);
goto exit;
}
#endif /* GSCAN_SUPPORT */
if ((err = _dhd_pno_set(dhd, _params, DHD_PNO_LEGACY_MODE)) < 0) {
DHD_ERROR(("failed to set call pno_set (err %d) in firmware\n", err));
goto exit;
}
if ((err = _dhd_pno_add_ssid(dhd, ssid_list, nssid)) < 0) {
DHD_ERROR(("failed to add ssid list(err %d), %d in firmware\n", err, nssid));
goto exit;
}
if (tot_nchan > 0) {
if ((err = _dhd_pno_cfg(dhd, _chan_list, tot_nchan)) < 0) {
DHD_ERROR(("%s : failed to set call pno_cfg (err %d) in firmware\n",
__FUNCTION__, err));
goto exit;
}
}
if (_pno_state->pno_status == DHD_PNO_DISABLED) {
if ((err = _dhd_pno_enable(dhd, PNO_ON)) < 0)
DHD_ERROR(("%s : failed to enable PNO\n", __FUNCTION__));
}
exit:
if (err < 0) {
_dhd_pno_reinitialize_prof(dhd, _params, DHD_PNO_LEGACY_MODE);
}
/* clear mode in case of error */
if (err < 0) {
int ret = dhd_pno_clean(dhd);
if (ret < 0) {
DHD_ERROR(("%s : failed to call dhd_pno_clean (err: %d)\n",
__FUNCTION__, ret));
} else {
_pno_state->pno_mode &= ~DHD_PNO_LEGACY_MODE;
}
}
return err;
}
int
dhd_pno_set_for_batch(dhd_pub_t *dhd, struct dhd_pno_batch_params *batch_params)
{
int err = BCME_OK;
uint16 _chan_list[WL_NUMCHANNELS];
int rem_nchan = 0, tot_nchan = 0;
int mode = 0, mscan = 0;
dhd_pno_params_t *_params;
dhd_pno_params_t *_params2;
dhd_pno_status_info_t *_pno_state;
NULL_CHECK(dhd, "dhd is NULL", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
NULL_CHECK(batch_params, "batch_params is NULL", err);
_pno_state = PNO_GET_PNOSTATE(dhd);
DHD_PNO(("%s enter\n", __FUNCTION__));
if (!dhd_support_sta_mode(dhd)) {
err = BCME_BADOPTION;
goto exit;
}
if (!WLS_SUPPORTED(_pno_state)) {
DHD_ERROR(("%s : wifi location service is not supported\n", __FUNCTION__));
err = BCME_UNSUPPORTED;
goto exit;
}
_params = &_pno_state->pno_params_arr[INDEX_OF_BATCH_PARAMS];
if (!(_pno_state->pno_mode & DHD_PNO_BATCH_MODE)) {
_pno_state->pno_mode |= DHD_PNO_BATCH_MODE;
err = _dhd_pno_reinitialize_prof(dhd, _params, DHD_PNO_BATCH_MODE);
if (err < 0) {
DHD_ERROR(("%s : failed to call _dhd_pno_reinitialize_prof\n",
__FUNCTION__));
goto exit;
}
} else {
/* batch mode is already started */
return -EBUSY;
}
_params->params_batch.scan_fr = batch_params->scan_fr;
_params->params_batch.bestn = batch_params->bestn;
_params->params_batch.mscan = (batch_params->mscan)?
batch_params->mscan : DEFAULT_BATCH_MSCAN;
_params->params_batch.nchan = batch_params->nchan;
memcpy(_params->params_batch.chan_list, batch_params->chan_list,
sizeof(_params->params_batch.chan_list));
memset(_chan_list, 0, sizeof(_chan_list));
rem_nchan = ARRAYSIZE(batch_params->chan_list) - batch_params->nchan;
if (batch_params->band == WLC_BAND_2G || batch_params->band == WLC_BAND_5G) {
/* get a valid channel list based on band B or A */
err = _dhd_pno_get_channels(dhd,
&_params->params_batch.chan_list[batch_params->nchan],
&rem_nchan, batch_params->band, FALSE);
if (err < 0) {
DHD_ERROR(("%s: failed to get valid channel list(band : %d)\n",
__FUNCTION__, batch_params->band));
goto exit;
}
/* now we need to update nchan because rem_chan has valid channel count */
_params->params_batch.nchan += rem_nchan;
/* need to sort channel list */
sort(_params->params_batch.chan_list, _params->params_batch.nchan,
sizeof(_params->params_batch.chan_list[0]), _dhd_pno_cmpfunc, NULL);
}
#ifdef PNO_DEBUG
{
DHD_PNO(("Channel list : "));
for (i = 0; i < _params->params_batch.nchan; i++) {
DHD_PNO(("%d ", _params->params_batch.chan_list[i]));
}
DHD_PNO(("\n"));
}
#endif // endif
if (_params->params_batch.nchan) {
/* copy the channel list into local array */
memcpy(_chan_list, _params->params_batch.chan_list, sizeof(_chan_list));
tot_nchan = _params->params_batch.nchan;
}
if (_pno_state->pno_mode & DHD_PNO_LEGACY_MODE) {
DHD_PNO(("PNO SSID is on progress in firmware\n"));
/* store current pno_mode before disabling pno */
mode = _pno_state->pno_mode;
err = _dhd_pno_enable(dhd, PNO_OFF);
if (err < 0) {
DHD_ERROR(("%s : failed to disable PNO\n", __FUNCTION__));
goto exit;
}
/* restore the previous mode */
_pno_state->pno_mode = mode;
/* Use the superset for channelist between two mode */
_params2 = &(_pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS]);
if (_params2->params_legacy.nchan > 0 && _params->params_batch.nchan > 0) {
err = _dhd_pno_chan_merge(_chan_list, &tot_nchan,
&_params2->params_legacy.chan_list[0],
_params2->params_legacy.nchan,
&_params->params_batch.chan_list[0], _params->params_batch.nchan);
if (err < 0) {
DHD_ERROR(("%s : failed to merge channel list"
" between legacy and batch\n",
__FUNCTION__));
goto exit;
}
} else {
DHD_PNO(("superset channel will use all channels in firmware\n"));
}
if ((err = _dhd_pno_add_ssid(dhd, &_params2->params_legacy.ssid_list,
_params2->params_legacy.nssid)) < 0) {
DHD_ERROR(("failed to add ssid list (err %d) in firmware\n", err));
goto exit;
}
}
if ((err = _dhd_pno_set(dhd, _params, DHD_PNO_BATCH_MODE)) < 0) {
DHD_ERROR(("%s : failed to set call pno_set (err %d) in firmware\n",
__FUNCTION__, err));
goto exit;
} else {
/* we need to return mscan */
mscan = err;
}
if (tot_nchan > 0) {
if ((err = _dhd_pno_cfg(dhd, _chan_list, tot_nchan)) < 0) {
DHD_ERROR(("%s : failed to set call pno_cfg (err %d) in firmware\n",
__FUNCTION__, err));
goto exit;
}
}
if (_pno_state->pno_status == DHD_PNO_DISABLED) {
if ((err = _dhd_pno_enable(dhd, PNO_ON)) < 0)
DHD_ERROR(("%s : failed to enable PNO\n", __FUNCTION__));
}
exit:
/* clear mode in case of error */
if (err < 0)
_pno_state->pno_mode &= ~DHD_PNO_BATCH_MODE;
else {
/* return #max scan firmware can do */
err = mscan;
}
return err;
}
#ifdef GSCAN_SUPPORT
static int
dhd_set_epno_params(dhd_pub_t *dhd, wl_ssid_ext_params_t *params, bool set)
{
wl_pfn_ssid_cfg_t cfg;
int err;
NULL_CHECK(dhd, "dhd is NULL\n", err);
memset(&cfg, 0, sizeof(wl_pfn_ssid_cfg_t));
cfg.version = WL_PFN_SSID_CFG_VERSION;
/* If asked to clear params (set == FALSE) just set the CLEAR bit */
if (!set)
cfg.flags |= WL_PFN_SSID_CFG_CLEAR;
else if (params)
memcpy(&cfg.params, params, sizeof(wl_ssid_ext_params_t));
err = dhd_iovar(dhd, 0, "pfn_ssid_cfg", (char *)&cfg,
sizeof(wl_pfn_ssid_cfg_t), NULL, 0, TRUE);
if (err != BCME_OK) {
DHD_ERROR(("%s : Failed to execute pfn_ssid_cfg %d\n", __FUNCTION__, err));
}
return err;
}
int
dhd_pno_flush_fw_epno(dhd_pub_t *dhd)
{
int err;
NULL_CHECK(dhd, "dhd is NULL\n", err);
err = dhd_set_epno_params(dhd, NULL, FALSE);
if (err < 0) {
DHD_ERROR(("failed to set ePNO params %d\n", err));
return err;
}
err = _dhd_pno_flush_ssid(dhd);
return err;
}
int
dhd_pno_set_epno(dhd_pub_t *dhd)
{
int err = BCME_OK;
dhd_pno_params_t *params;
dhd_pno_status_info_t *_pno_state;
struct dhd_pno_gscan_params *gscan_params;
NULL_CHECK(dhd, "dhd is NULL\n", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
_pno_state = PNO_GET_PNOSTATE(dhd);
params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS];
gscan_params = ¶ms->params_gscan;
if (gscan_params->epno_cfg.num_epno_ssid) {
DHD_PNO(("num_epno_ssid %d\n", gscan_params->epno_cfg.num_epno_ssid));
if ((err = _dhd_pno_add_ssid(dhd, &gscan_params->epno_cfg.epno_ssid_list,
gscan_params->epno_cfg.num_epno_ssid)) < 0) {
DHD_ERROR(("failed to add ssid list (err %d) to firmware\n", err));
return err;
}
err = dhd_set_epno_params(dhd, &gscan_params->epno_cfg.params, TRUE);
if (err < 0) {
DHD_ERROR(("failed to set ePNO params %d\n", err));
}
}
return err;
}
static void
dhd_pno_reset_cfg_gscan(dhd_pub_t *dhd, dhd_pno_params_t *_params,
dhd_pno_status_info_t *_pno_state, uint8 flags)
{
DHD_PNO(("%s enter\n", __FUNCTION__));
if (flags & GSCAN_FLUSH_SCAN_CFG) {
_params->params_gscan.bestn = 0;
_params->params_gscan.mscan = 0;
_params->params_gscan.buffer_threshold = GSCAN_BATCH_NO_THR_SET;
_params->params_gscan.scan_fr = 0;
_params->params_gscan.send_all_results_flag = 0;
memset(_params->params_gscan.channel_bucket, 0,
_params->params_gscan.nchannel_buckets *
sizeof(struct dhd_pno_gscan_channel_bucket));
_params->params_gscan.nchannel_buckets = 0;
DHD_PNO(("Flush Scan config\n"));
}
if (flags & GSCAN_FLUSH_HOTLIST_CFG) {
struct dhd_pno_bssid *iter, *next;
if (_params->params_gscan.nbssid_hotlist > 0) {
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
list_for_each_entry_safe(iter, next,
&_params->params_gscan.hotlist_bssid_list, list) {
GCC_DIAGNOSTIC_POP();
list_del(&iter->list);
MFREE(dhd->osh, iter, sizeof(struct dhd_pno_bssid));
}
}
_params->params_gscan.nbssid_hotlist = 0;
DHD_PNO(("Flush Hotlist Config\n"));
}
if (flags & GSCAN_FLUSH_EPNO_CFG) {
dhd_pno_ssid_t *iter, *next;
dhd_epno_ssid_cfg_t *epno_cfg = &_params->params_gscan.epno_cfg;
if (epno_cfg->num_epno_ssid > 0) {
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
list_for_each_entry_safe(iter, next,
&epno_cfg->epno_ssid_list, list) {
GCC_DIAGNOSTIC_POP();
list_del(&iter->list);
MFREE(dhd->osh, iter, sizeof(struct dhd_pno_bssid));
}
epno_cfg->num_epno_ssid = 0;
}
memset(&epno_cfg->params, 0, sizeof(wl_ssid_ext_params_t));
DHD_PNO(("Flushed ePNO Config\n"));
}
return;
}
int
dhd_pno_lock_batch_results(dhd_pub_t *dhd)
{
dhd_pno_status_info_t *_pno_state;
int err = BCME_OK;
NULL_CHECK(dhd, "dhd is NULL", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
_pno_state = PNO_GET_PNOSTATE(dhd);
mutex_lock(&_pno_state->pno_mutex);
return err;
}
void
dhd_pno_unlock_batch_results(dhd_pub_t *dhd)
{
dhd_pno_status_info_t *_pno_state;
_pno_state = PNO_GET_PNOSTATE(dhd);
mutex_unlock(&_pno_state->pno_mutex);
return;
}
int
dhd_wait_batch_results_complete(dhd_pub_t *dhd)
{
dhd_pno_status_info_t *_pno_state;
dhd_pno_params_t *_params;
int err = BCME_OK;
NULL_CHECK(dhd, "dhd is NULL", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
_pno_state = PNO_GET_PNOSTATE(dhd);
_params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS];
/* Has the workqueue finished its job already?? */
if (_params->params_gscan.get_batch_flag == GSCAN_BATCH_RETRIEVAL_IN_PROGRESS) {
DHD_PNO(("%s: Waiting to complete retrieval..\n", __FUNCTION__));
wait_event_interruptible_timeout(_pno_state->batch_get_wait,
is_batch_retrieval_complete(&_params->params_gscan),
msecs_to_jiffies(GSCAN_BATCH_GET_MAX_WAIT));
} else { /* GSCAN_BATCH_RETRIEVAL_COMPLETE */
gscan_results_cache_t *iter;
uint16 num_results = 0;
mutex_lock(&_pno_state->pno_mutex);
iter = _params->params_gscan.gscan_batch_cache;
while (iter) {
num_results += iter->tot_count - iter->tot_consumed;
iter = iter->next;
}
mutex_unlock(&_pno_state->pno_mutex);
/* All results consumed/No results cached??
* Get fresh results from FW
*/
if ((_pno_state->pno_mode & DHD_PNO_GSCAN_MODE) && !num_results) {
DHD_PNO(("%s: No results cached, getting from FW..\n", __FUNCTION__));
err = dhd_retreive_batch_scan_results(dhd);
if (err == BCME_OK) {
wait_event_interruptible_timeout(_pno_state->batch_get_wait,
is_batch_retrieval_complete(&_params->params_gscan),
msecs_to_jiffies(GSCAN_BATCH_GET_MAX_WAIT));
}
}
}
DHD_PNO(("%s: Wait complete\n", __FUNCTION__));
return err;
}
int
dhd_pno_set_cfg_gscan(dhd_pub_t *dhd, dhd_pno_gscan_cmd_cfg_t type,
void *buf, bool flush)
{
int err = BCME_OK;
dhd_pno_params_t *_params;
int i;
dhd_pno_status_info_t *_pno_state;
NULL_CHECK(dhd, "dhd is NULL", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
DHD_PNO(("%s enter\n", __FUNCTION__));
_pno_state = PNO_GET_PNOSTATE(dhd);
_params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS];
mutex_lock(&_pno_state->pno_mutex);
switch (type) {
case DHD_PNO_BATCH_SCAN_CFG_ID:
{
gscan_batch_params_t *ptr = (gscan_batch_params_t *)buf;
_params->params_gscan.bestn = ptr->bestn;
_params->params_gscan.mscan = ptr->mscan;
_params->params_gscan.buffer_threshold = ptr->buffer_threshold;
}
break;
case DHD_PNO_GEOFENCE_SCAN_CFG_ID:
{
gscan_hotlist_scan_params_t *ptr = (gscan_hotlist_scan_params_t *)buf;
struct dhd_pno_bssid *_pno_bssid;
struct bssid_t *bssid_ptr;
int8 flags;
if (flush) {
dhd_pno_reset_cfg_gscan(dhd, _params, _pno_state,
GSCAN_FLUSH_HOTLIST_CFG);
}
if (!ptr->nbssid) {
break;
}
if (!_params->params_gscan.nbssid_hotlist) {
INIT_LIST_HEAD(&_params->params_gscan.hotlist_bssid_list);
}
if ((_params->params_gscan.nbssid_hotlist +
ptr->nbssid) > PFN_SWC_MAX_NUM_APS) {
DHD_ERROR(("Excessive number of hotlist APs programmed %d\n",
(_params->params_gscan.nbssid_hotlist +
ptr->nbssid)));
err = BCME_RANGE;
goto exit;
}
for (i = 0, bssid_ptr = ptr->bssid; i < ptr->nbssid; i++, bssid_ptr++) {
_pno_bssid = (struct dhd_pno_bssid *)MALLOCZ(dhd->osh,
sizeof(struct dhd_pno_bssid));
if (!_pno_bssid) {
DHD_ERROR(("_pno_bssid is NULL, cannot kalloc %zd bytes",
sizeof(struct dhd_pno_bssid)));
err = BCME_NOMEM;
goto exit;
}
memcpy(&_pno_bssid->macaddr, &bssid_ptr->macaddr, ETHER_ADDR_LEN);
flags = (int8) bssid_ptr->rssi_reporting_threshold;
_pno_bssid->flags = flags << WL_PFN_RSSI_SHIFT;
list_add_tail(&_pno_bssid->list,
&_params->params_gscan.hotlist_bssid_list);
}
_params->params_gscan.nbssid_hotlist += ptr->nbssid;
_params->params_gscan.lost_ap_window = ptr->lost_ap_window;
}
break;
case DHD_PNO_SCAN_CFG_ID:
{
int k;
uint16 band;
gscan_scan_params_t *ptr = (gscan_scan_params_t *)buf;
struct dhd_pno_gscan_channel_bucket *ch_bucket;
if (ptr->nchannel_buckets <= GSCAN_MAX_CH_BUCKETS) {
_params->params_gscan.nchannel_buckets = ptr->nchannel_buckets;
memcpy(_params->params_gscan.channel_bucket, ptr->channel_bucket,
_params->params_gscan.nchannel_buckets *
sizeof(struct dhd_pno_gscan_channel_bucket));
ch_bucket = _params->params_gscan.channel_bucket;
for (i = 0; i < ptr->nchannel_buckets; i++) {
band = ch_bucket[i].band;
for (k = 0; k < ptr->channel_bucket[i].num_channels; k++) {
ch_bucket[i].chan_list[k] =
wf_mhz2channel(ptr->channel_bucket[i].chan_list[k],
0);
}
ch_bucket[i].band = 0;
/* HAL and DHD use different bits for 2.4G and
* 5G in bitmap. Hence translating it here...
*/
if (band & GSCAN_BG_BAND_MASK) {
ch_bucket[i].band |= WLC_BAND_2G;
}
if (band & GSCAN_A_BAND_MASK) {
ch_bucket[i].band |= WLC_BAND_5G;
}
if (band & GSCAN_DFS_MASK) {
ch_bucket[i].band |= GSCAN_DFS_MASK;
}
DHD_PNO(("band %d report_flag %d\n", ch_bucket[i].band,
ch_bucket[i].report_flag));
}
for (i = 0; i < ptr->nchannel_buckets; i++) {
ch_bucket[i].bucket_freq_multiple =
ch_bucket[i].bucket_freq_multiple/ptr->scan_fr;
ch_bucket[i].bucket_max_multiple =
ch_bucket[i].bucket_max_multiple/ptr->scan_fr;
DHD_PNO(("mult %d max_mult %d\n",
ch_bucket[i].bucket_freq_multiple,
ch_bucket[i].bucket_max_multiple));
}
_params->params_gscan.scan_fr = ptr->scan_fr;
DHD_PNO(("num_buckets %d scan_fr %d\n", ptr->nchannel_buckets,
_params->params_gscan.scan_fr));
} else {
err = BCME_BADARG;
}
}
break;
case DHD_PNO_EPNO_CFG_ID:
if (flush) {
dhd_pno_reset_cfg_gscan(dhd, _params, _pno_state,
GSCAN_FLUSH_EPNO_CFG);
}
break;
case DHD_PNO_EPNO_PARAMS_ID:
if (flush) {
memset(&_params->params_gscan.epno_cfg.params, 0,
sizeof(wl_ssid_ext_params_t));
}
if (buf) {
memcpy(&_params->params_gscan.epno_cfg.params, buf,
sizeof(wl_ssid_ext_params_t));
}
break;
default:
err = BCME_BADARG;
DHD_ERROR(("%s: Unrecognized cmd type - %d\n", __FUNCTION__, type));
break;
}
exit:
mutex_unlock(&_pno_state->pno_mutex);
return err;
}
static bool
validate_gscan_params(struct dhd_pno_gscan_params *gscan_params)
{
unsigned int i, k;
if (!gscan_params->scan_fr || !gscan_params->nchannel_buckets) {
DHD_ERROR(("%s : Scan freq - %d or number of channel buckets - %d is empty\n",
__FUNCTION__, gscan_params->scan_fr, gscan_params->nchannel_buckets));
return false;
}
for (i = 0; i < gscan_params->nchannel_buckets; i++) {
if (!gscan_params->channel_bucket[i].band) {
for (k = 0; k < gscan_params->channel_bucket[i].num_channels; k++) {
if (gscan_params->channel_bucket[i].chan_list[k] > CHANNEL_5G_MAX) {
DHD_ERROR(("%s : Unknown channel %d\n", __FUNCTION__,
gscan_params->channel_bucket[i].chan_list[k]));
return false;
}
}
}
}
return true;
}
static int
dhd_pno_set_for_gscan(dhd_pub_t *dhd, struct dhd_pno_gscan_params *gscan_params)
{
int err = BCME_OK;
int mode, i = 0;
uint16 _chan_list[WL_NUMCHANNELS];
int tot_nchan = 0;
int num_buckets_to_fw, tot_num_buckets, gscan_param_size = 0;
dhd_pno_status_info_t *_pno_state = PNO_GET_PNOSTATE(dhd);
wl_pfn_gscan_ch_bucket_cfg_t *ch_bucket = NULL;
wl_pfn_gscan_cfg_t *pfn_gscan_cfg_t = NULL;
wl_pfn_bssid_t *p_pfn_bssid = NULL;
dhd_pno_params_t *_params;
bool fw_flushed = FALSE;
_params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS];
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
NULL_CHECK(gscan_params, "gscan_params is NULL", err);
DHD_PNO(("%s enter\n", __FUNCTION__));
if (!dhd_support_sta_mode(dhd)) {
err = BCME_BADOPTION;
goto exit;
}
if (!WLS_SUPPORTED(_pno_state)) {
DHD_ERROR(("%s : wifi location service is not supported\n", __FUNCTION__));
err = BCME_UNSUPPORTED;
goto exit;
}
if (!validate_gscan_params(gscan_params)) {
DHD_ERROR(("%s : Cannot start gscan - bad params\n", __FUNCTION__));
err = BCME_BADARG;
goto exit;
}
if (!(ch_bucket = dhd_pno_gscan_create_channel_list(dhd, _pno_state,
_chan_list, &tot_num_buckets, &num_buckets_to_fw))) {
goto exit;
}
mutex_lock(&_pno_state->pno_mutex);
/* Clear any pre-existing results in our cache
* not consumed by framework
*/
dhd_gscan_clear_all_batch_results(dhd);
if (_pno_state->pno_mode & (DHD_PNO_GSCAN_MODE | DHD_PNO_LEGACY_MODE)) {
/* store current pno_mode before disabling pno */
mode = _pno_state->pno_mode;
err = dhd_pno_clean(dhd);
if (err < 0) {
DHD_ERROR(("%s : failed to disable PNO\n", __FUNCTION__));
mutex_unlock(&_pno_state->pno_mutex);
goto exit;
}
fw_flushed = TRUE;
/* restore the previous mode */
_pno_state->pno_mode = mode;
}
_pno_state->pno_mode |= DHD_PNO_GSCAN_MODE;
mutex_unlock(&_pno_state->pno_mutex);
if ((_pno_state->pno_mode & DHD_PNO_LEGACY_MODE) &&
!gscan_params->epno_cfg.num_epno_ssid) {
struct dhd_pno_legacy_params *params_legacy;
params_legacy =
&(_pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS].params_legacy);
if ((err = _dhd_pno_add_ssid(dhd, ¶ms_legacy->ssid_list,
params_legacy->nssid)) < 0) {
DHD_ERROR(("failed to add ssid list (err %d) in firmware\n", err));
goto exit;
}
}
if ((err = _dhd_pno_set(dhd, _params, DHD_PNO_GSCAN_MODE)) < 0) {
DHD_ERROR(("failed to set call pno_set (err %d) in firmware\n", err));
goto exit;
}
gscan_param_size = sizeof(wl_pfn_gscan_cfg_t) +
(num_buckets_to_fw - 1) * sizeof(wl_pfn_gscan_ch_bucket_cfg_t);
pfn_gscan_cfg_t = (wl_pfn_gscan_cfg_t *) MALLOCZ(dhd->osh, gscan_param_size);
if (!pfn_gscan_cfg_t) {
DHD_ERROR(("%s: failed to malloc memory of size %d\n",
__FUNCTION__, gscan_param_size));
err = BCME_NOMEM;
goto exit;
}
pfn_gscan_cfg_t->version = WL_GSCAN_CFG_VERSION;
if (gscan_params->mscan)
pfn_gscan_cfg_t->buffer_threshold = gscan_params->buffer_threshold;
else
pfn_gscan_cfg_t->buffer_threshold = GSCAN_BATCH_NO_THR_SET;
pfn_gscan_cfg_t->flags =
(gscan_params->send_all_results_flag & GSCAN_SEND_ALL_RESULTS_MASK);
pfn_gscan_cfg_t->flags |= GSCAN_ALL_BUCKETS_IN_FIRST_SCAN_MASK;
pfn_gscan_cfg_t->count_of_channel_buckets = num_buckets_to_fw;
pfn_gscan_cfg_t->retry_threshold = GSCAN_RETRY_THRESHOLD;
for (i = 0; i < num_buckets_to_fw; i++) {
pfn_gscan_cfg_t->channel_bucket[i].bucket_end_index =
ch_bucket[i].bucket_end_index;
pfn_gscan_cfg_t->channel_bucket[i].bucket_freq_multiple =
ch_bucket[i].bucket_freq_multiple;
pfn_gscan_cfg_t->channel_bucket[i].max_freq_multiple =
ch_bucket[i].max_freq_multiple;
pfn_gscan_cfg_t->channel_bucket[i].repeat =
ch_bucket[i].repeat;
pfn_gscan_cfg_t->channel_bucket[i].flag =
ch_bucket[i].flag;
}
tot_nchan = pfn_gscan_cfg_t->channel_bucket[num_buckets_to_fw - 1].bucket_end_index + 1;
DHD_PNO(("Total channel num %d total ch_buckets %d ch_buckets_to_fw %d \n", tot_nchan,
tot_num_buckets, num_buckets_to_fw));
if ((err = _dhd_pno_cfg(dhd, _chan_list, tot_nchan)) < 0) {
DHD_ERROR(("%s : failed to set call pno_cfg (err %d) in firmware\n",
__FUNCTION__, err));
goto exit;
}
if ((err = _dhd_pno_gscan_cfg(dhd, pfn_gscan_cfg_t, gscan_param_size)) < 0) {
DHD_ERROR(("%s : failed to set call pno_gscan_cfg (err %d) in firmware\n",
__FUNCTION__, err));
goto exit;
}
/* Reprogram ePNO cfg from dhd cache if FW has been flushed */
if (fw_flushed) {
dhd_pno_set_epno(dhd);
}
if (gscan_params->nbssid_hotlist) {
struct dhd_pno_bssid *iter, *next;
wl_pfn_bssid_t *ptr;
p_pfn_bssid = (wl_pfn_bssid_t *)MALLOCZ(dhd->osh,
sizeof(wl_pfn_bssid_t) * gscan_params->nbssid_hotlist);
if (p_pfn_bssid == NULL) {
DHD_ERROR(("%s : failed to allocate wl_pfn_bssid_t array"
" (count: %d)",
__FUNCTION__, _params->params_hotlist.nbssid));
err = BCME_NOMEM;
_pno_state->pno_mode &= ~DHD_PNO_HOTLIST_MODE;
goto exit;
}
ptr = p_pfn_bssid;
/* convert dhd_pno_bssid to wl_pfn_bssid */
DHD_PNO(("nhotlist %d\n", gscan_params->nbssid_hotlist));
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
list_for_each_entry_safe(iter, next,
&gscan_params->hotlist_bssid_list, list) {
char buffer_hotlist[64];
GCC_DIAGNOSTIC_POP();
memcpy(&ptr->macaddr,
&iter->macaddr, ETHER_ADDR_LEN);
BCM_REFERENCE(buffer_hotlist);
DHD_PNO(("%s\n", bcm_ether_ntoa(&ptr->macaddr, buffer_hotlist)));
ptr->flags = iter->flags;
ptr++;
}
err = _dhd_pno_add_bssid(dhd, p_pfn_bssid, gscan_params->nbssid_hotlist);
if (err < 0) {
DHD_ERROR(("%s : failed to call _dhd_pno_add_bssid(err :%d)\n",
__FUNCTION__, err));
goto exit;
}
}
if ((err = _dhd_pno_enable(dhd, PNO_ON)) < 0) {
DHD_ERROR(("%s : failed to enable PNO err %d\n", __FUNCTION__, err));
}
exit:
/* clear mode in case of error */
if (err < 0) {
int ret = dhd_pno_clean(dhd);
if (ret < 0) {
DHD_ERROR(("%s : failed to call dhd_pno_clean (err: %d)\n",
__FUNCTION__, ret));
} else {
_pno_state->pno_mode &= ~DHD_PNO_GSCAN_MODE;
}
}
MFREE(dhd->osh, p_pfn_bssid,
sizeof(wl_pfn_bssid_t) * gscan_params->nbssid_hotlist);
if (pfn_gscan_cfg_t) {
MFREE(dhd->osh, pfn_gscan_cfg_t, gscan_param_size);
}
if (ch_bucket) {
MFREE(dhd->osh, ch_bucket,
(tot_num_buckets * sizeof(wl_pfn_gscan_ch_bucket_cfg_t)));
}
return err;
}
static wl_pfn_gscan_ch_bucket_cfg_t *
dhd_pno_gscan_create_channel_list(dhd_pub_t *dhd,
dhd_pno_status_info_t *_pno_state,
uint16 *chan_list,
uint32 *num_buckets,
uint32 *num_buckets_to_fw)
{
int i, num_channels, err, nchan = WL_NUMCHANNELS, ch_cnt;
uint16 *ptr = chan_list, max;
wl_pfn_gscan_ch_bucket_cfg_t *ch_bucket;
dhd_pno_params_t *_params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS];
bool is_pno_legacy_running;
dhd_pno_gscan_channel_bucket_t *gscan_buckets = _params->params_gscan.channel_bucket;
/* ePNO and Legacy PNO do not co-exist */
is_pno_legacy_running = ((_pno_state->pno_mode & DHD_PNO_LEGACY_MODE) &&
!_params->params_gscan.epno_cfg.num_epno_ssid);
if (is_pno_legacy_running)
*num_buckets = _params->params_gscan.nchannel_buckets + 1;
else
*num_buckets = _params->params_gscan.nchannel_buckets;
*num_buckets_to_fw = 0;
ch_bucket = (wl_pfn_gscan_ch_bucket_cfg_t *) MALLOC(dhd->osh,
((*num_buckets) * sizeof(wl_pfn_gscan_ch_bucket_cfg_t)));
if (!ch_bucket) {
DHD_ERROR(("%s: failed to malloc memory of size %zd\n",
__FUNCTION__, (*num_buckets) * sizeof(wl_pfn_gscan_ch_bucket_cfg_t)));
*num_buckets_to_fw = *num_buckets = 0;
return NULL;
}
max = gscan_buckets[0].bucket_freq_multiple;
num_channels = 0;
/* nchan is the remaining space left in chan_list buffer
* So any overflow list of channels is ignored
*/
for (i = 0; i < _params->params_gscan.nchannel_buckets && nchan; i++) {
if (!gscan_buckets[i].band) {
ch_cnt = MIN(gscan_buckets[i].num_channels, (uint8)nchan);
num_channels += ch_cnt;
memcpy(ptr, gscan_buckets[i].chan_list,
ch_cnt * sizeof(uint16));
ptr = ptr + ch_cnt;
} else {
/* get a valid channel list based on band B or A */
err = _dhd_pno_get_channels(dhd, ptr,
&nchan, (gscan_buckets[i].band & GSCAN_ABG_BAND_MASK),
!(gscan_buckets[i].band & GSCAN_DFS_MASK));
if (err < 0) {
DHD_ERROR(("%s: failed to get valid channel list(band : %d)\n",
__FUNCTION__, gscan_buckets[i].band));
MFREE(dhd->osh, ch_bucket,
((*num_buckets) * sizeof(wl_pfn_gscan_ch_bucket_cfg_t)));
*num_buckets_to_fw = *num_buckets = 0;
return NULL;
}
num_channels += nchan;
ptr = ptr + nchan;
}
ch_bucket[i].bucket_end_index = num_channels - 1;
ch_bucket[i].bucket_freq_multiple = gscan_buckets[i].bucket_freq_multiple;
ch_bucket[i].repeat = gscan_buckets[i].repeat;
ch_bucket[i].max_freq_multiple = gscan_buckets[i].bucket_max_multiple;
ch_bucket[i].flag = gscan_buckets[i].report_flag;
/* HAL and FW interpretations are opposite for this bit */
ch_bucket[i].flag ^= DHD_PNO_REPORT_NO_BATCH;
if (max < gscan_buckets[i].bucket_freq_multiple)
max = gscan_buckets[i].bucket_freq_multiple;
nchan = WL_NUMCHANNELS - num_channels;
*num_buckets_to_fw = *num_buckets_to_fw + 1;
DHD_PNO(("end_idx %d freq_mult - %d\n",
ch_bucket[i].bucket_end_index, ch_bucket[i].bucket_freq_multiple));
}
_params->params_gscan.max_ch_bucket_freq = max;
/* Legacy PNO maybe running, which means we need to create a legacy PNO bucket
* Get GCF of Legacy PNO and Gscan scanfreq
*/
if (is_pno_legacy_running) {
dhd_pno_params_t *_params1 = &_pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS];
uint16 *legacy_chan_list = _params1->params_legacy.chan_list;
uint16 common_freq;
uint32 legacy_bucket_idx = _params->params_gscan.nchannel_buckets;
/* If no space is left then only gscan buckets will be sent to FW */
if (nchan) {
common_freq = gcd(_params->params_gscan.scan_fr,
_params1->params_legacy.scan_fr);
max = gscan_buckets[0].bucket_freq_multiple;
/* GSCAN buckets */
for (i = 0; i < _params->params_gscan.nchannel_buckets; i++) {
ch_bucket[i].bucket_freq_multiple *= _params->params_gscan.scan_fr;
ch_bucket[i].bucket_freq_multiple /= common_freq;
if (max < gscan_buckets[i].bucket_freq_multiple)
max = gscan_buckets[i].bucket_freq_multiple;
}
/* Legacy PNO bucket */
ch_bucket[legacy_bucket_idx].bucket_freq_multiple =
_params1->params_legacy.scan_fr;
ch_bucket[legacy_bucket_idx].bucket_freq_multiple /=
common_freq;
_params->params_gscan.max_ch_bucket_freq = MAX(max,
ch_bucket[legacy_bucket_idx].bucket_freq_multiple);
ch_bucket[legacy_bucket_idx].flag = CH_BUCKET_REPORT_REGULAR;
/* Now add channels to the legacy scan bucket */
for (i = 0; i < _params1->params_legacy.nchan && nchan; i++, nchan--) {
ptr[i] = legacy_chan_list[i];
num_channels++;
}
ch_bucket[legacy_bucket_idx].bucket_end_index = num_channels - 1;
*num_buckets_to_fw = *num_buckets_to_fw + 1;
DHD_PNO(("end_idx %d freq_mult - %d\n",
ch_bucket[legacy_bucket_idx].bucket_end_index,
ch_bucket[legacy_bucket_idx].bucket_freq_multiple));
}
}
return ch_bucket;
}
static int
dhd_pno_stop_for_gscan(dhd_pub_t *dhd)
{
int err = BCME_OK;
int mode;
dhd_pno_status_info_t *_pno_state;
_pno_state = PNO_GET_PNOSTATE(dhd);
DHD_PNO(("%s enter\n", __FUNCTION__));
if (!dhd_support_sta_mode(dhd)) {
err = BCME_BADOPTION;
goto exit;
}
if (!WLS_SUPPORTED(_pno_state)) {
DHD_ERROR(("%s : wifi location service is not supported\n",
__FUNCTION__));
err = BCME_UNSUPPORTED;
goto exit;
}
if (!(_pno_state->pno_mode & DHD_PNO_GSCAN_MODE)) {
DHD_ERROR(("%s : GSCAN is not enabled\n", __FUNCTION__));
goto exit;
}
if (_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS].params_gscan.mscan) {
/* retrieve the batching data from firmware into host */
err = dhd_wait_batch_results_complete(dhd);
if (err != BCME_OK)
goto exit;
}
mutex_lock(&_pno_state->pno_mutex);
mode = _pno_state->pno_mode & ~DHD_PNO_GSCAN_MODE;
err = dhd_pno_clean(dhd);
if (err < 0) {
DHD_ERROR(("%s : failed to call dhd_pno_clean (err: %d)\n",
__FUNCTION__, err));
mutex_unlock(&_pno_state->pno_mutex);
return err;
}
_pno_state->pno_mode = mode;
mutex_unlock(&_pno_state->pno_mutex);
/* Reprogram Legacy PNO if it was running */
if (_pno_state->pno_mode & DHD_PNO_LEGACY_MODE) {
struct dhd_pno_legacy_params *params_legacy;
uint16 chan_list[WL_NUMCHANNELS];
params_legacy = &(_pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS].params_legacy);
_pno_state->pno_mode &= ~DHD_PNO_LEGACY_MODE;
DHD_PNO(("Restarting Legacy PNO SSID scan...\n"));
memcpy(chan_list, params_legacy->chan_list,
(params_legacy->nchan * sizeof(uint16)));
err = dhd_pno_set_legacy_pno(dhd, params_legacy->scan_fr,
params_legacy->pno_repeat, params_legacy->pno_freq_expo_max,
chan_list, params_legacy->nchan);
if (err < 0) {
DHD_ERROR(("%s : failed to restart legacy PNO scan(err: %d)\n",
__FUNCTION__, err));
goto exit;
}
}
exit:
return err;
}
int
dhd_pno_initiate_gscan_request(dhd_pub_t *dhd, bool run, bool flush)
{
int err = BCME_OK;
dhd_pno_params_t *params;
dhd_pno_status_info_t *_pno_state;
struct dhd_pno_gscan_params *gscan_params;
NULL_CHECK(dhd, "dhd is NULL\n", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
_pno_state = PNO_GET_PNOSTATE(dhd);
DHD_PNO(("%s enter - run %d flush %d\n", __FUNCTION__, run, flush));
params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS];
gscan_params = ¶ms->params_gscan;
if (run) {
err = dhd_pno_set_for_gscan(dhd, gscan_params);
} else {
if (flush) {
mutex_lock(&_pno_state->pno_mutex);
dhd_pno_reset_cfg_gscan(dhd, params, _pno_state, GSCAN_FLUSH_ALL_CFG);
mutex_unlock(&_pno_state->pno_mutex);
}
/* Need to stop all gscan */
err = dhd_pno_stop_for_gscan(dhd);
}
return err;
}
int
dhd_pno_enable_full_scan_result(dhd_pub_t *dhd, bool real_time_flag)
{
int err = BCME_OK;
dhd_pno_params_t *params;
dhd_pno_status_info_t *_pno_state;
struct dhd_pno_gscan_params *gscan_params;
uint8 old_flag;
NULL_CHECK(dhd, "dhd is NULL\n", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
_pno_state = PNO_GET_PNOSTATE(dhd);
DHD_PNO(("%s enter\n", __FUNCTION__));
if (!WLS_SUPPORTED(_pno_state)) {
DHD_ERROR(("%s : wifi location service is not supported\n", __FUNCTION__));
err = BCME_UNSUPPORTED;
goto exit;
}
params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS];
gscan_params = ¶ms->params_gscan;
mutex_lock(&_pno_state->pno_mutex);
old_flag = gscan_params->send_all_results_flag;
gscan_params->send_all_results_flag = (uint8) real_time_flag;
if (_pno_state->pno_mode & DHD_PNO_GSCAN_MODE) {
if (old_flag != gscan_params->send_all_results_flag) {
wl_pfn_gscan_cfg_t gscan_cfg;
gscan_cfg.version = WL_GSCAN_CFG_VERSION;
gscan_cfg.flags = (gscan_params->send_all_results_flag &
GSCAN_SEND_ALL_RESULTS_MASK);
gscan_cfg.flags |= GSCAN_CFG_FLAGS_ONLY_MASK;
if ((err = _dhd_pno_gscan_cfg(dhd, &gscan_cfg,
sizeof(wl_pfn_gscan_cfg_t))) < 0) {
DHD_ERROR(("%s : pno_gscan_cfg failed (err %d) in firmware\n",
__FUNCTION__, err));
goto exit_mutex_unlock;
}
} else {
DHD_PNO(("No change in flag - %d\n", old_flag));
}
} else {
DHD_PNO(("Gscan not started\n"));
}
exit_mutex_unlock:
mutex_unlock(&_pno_state->pno_mutex);
exit:
return err;
}
/* Cleanup any consumed results
* Return TRUE if all results consumed else FALSE
*/
int dhd_gscan_batch_cache_cleanup(dhd_pub_t *dhd)
{
int ret = 0;
dhd_pno_params_t *params;
struct dhd_pno_gscan_params *gscan_params;
dhd_pno_status_info_t *_pno_state;
gscan_results_cache_t *iter, *tmp;
_pno_state = PNO_GET_PNOSTATE(dhd);
params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS];
gscan_params = ¶ms->params_gscan;
iter = gscan_params->gscan_batch_cache;
while (iter) {
if (iter->tot_consumed == iter->tot_count) {
tmp = iter->next;
MFREE(dhd->osh, iter,
((iter->tot_count - 1) * sizeof(wifi_gscan_result_t))
+ sizeof(gscan_results_cache_t));
iter = tmp;
} else
break;
}
gscan_params->gscan_batch_cache = iter;
ret = (iter == NULL);
return ret;
}
static int
_dhd_pno_get_gscan_batch_from_fw(dhd_pub_t *dhd)
{
int err = BCME_OK;
uint32 timestamp = 0, ts = 0, i, j, timediff;
dhd_pno_params_t *params;
dhd_pno_status_info_t *_pno_state;
wl_pfn_lnet_info_v1_t *plnetinfo;
wl_pfn_lnet_info_v2_t *plnetinfo_v2;
struct dhd_pno_gscan_params *gscan_params;
wl_pfn_lscanresults_v1_t *plbestnet_v1 = NULL;
wl_pfn_lscanresults_v2_t *plbestnet_v2 = NULL;
gscan_results_cache_t *iter, *tail;
wifi_gscan_result_t *result;
uint8 *nAPs_per_scan = NULL;
uint8 num_scans_in_cur_iter;
uint16 count;
uint16 fwcount;
uint16 fwstatus = PFN_INCOMPLETE;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0))
struct timespec64 tm_spec;
#else
struct timespec tm_spec;
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)) */
/* Static asserts in _dhd_pno_get_for_batch() below guarantee the v1 and v2
* net_info and subnet_info structures are compatible in size and SSID offset,
* allowing v1 to be safely used in the code below except for lscanresults
* fields themselves (status, count, offset to netinfo).
*/
NULL_CHECK(dhd, "dhd is NULL\n", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
_pno_state = PNO_GET_PNOSTATE(dhd);
params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS];
DHD_PNO(("%s enter\n", __FUNCTION__));
if (!WLS_SUPPORTED(_pno_state)) {
DHD_ERROR(("%s : wifi location service is not supported\n", __FUNCTION__));
err = BCME_UNSUPPORTED;
goto exit;
}
if (!(_pno_state->pno_mode & DHD_PNO_GSCAN_MODE)) {
DHD_ERROR(("%s: GSCAN is not enabled\n", __FUNCTION__));
goto exit;
}
gscan_params = ¶ms->params_gscan;
nAPs_per_scan = (uint8 *) MALLOC(dhd->osh, gscan_params->mscan);
if (!nAPs_per_scan) {
DHD_ERROR(("%s :Out of memory!! Cant malloc %d bytes\n", __FUNCTION__,
gscan_params->mscan));
err = BCME_NOMEM;
goto exit;
}
plbestnet_v1 = (wl_pfn_lscanresults_v1_t *)MALLOC(dhd->osh, PNO_BESTNET_LEN);
if (!plbestnet_v1) {
DHD_ERROR(("%s :Out of memory!! Cant malloc %d bytes\n", __FUNCTION__,
(int)PNO_BESTNET_LEN));
err = BCME_NOMEM;
goto exit;
}
plbestnet_v2 = (wl_pfn_lscanresults_v2_t *)plbestnet_v1;
mutex_lock(&_pno_state->pno_mutex);
dhd_gscan_clear_all_batch_results(dhd);
if (!(_pno_state->pno_mode & DHD_PNO_GSCAN_MODE)) {
DHD_ERROR(("%s : GSCAN is not enabled\n", __FUNCTION__));
goto exit_mutex_unlock;
}
timediff = gscan_params->scan_fr * 1000;
timediff = timediff >> 1;
/* Ok, now lets start getting results from the FW */
tail = gscan_params->gscan_batch_cache;
do {
err = dhd_iovar(dhd, 0, "pfnlbest", NULL, 0, (char *)plbestnet_v1, PNO_BESTNET_LEN,
FALSE);
if (err < 0) {
DHD_ERROR(("%s : Cannot get all the batch results, err :%d\n",
__FUNCTION__, err));
goto exit_mutex_unlock;
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0))
ktime_get_boottime_ts64(&tm_spec);
#else
get_monotonic_boottime(&tm_spec);
#endif
if (plbestnet_v1->version == PFN_LBEST_SCAN_RESULT_VERSION_V1) {
fwstatus = plbestnet_v1->status;
fwcount = plbestnet_v1->count;
plnetinfo = &plbestnet_v1->netinfo[0];
DHD_PNO(("ver %d, status : %d, count %d\n",
plbestnet_v1->version, fwstatus, fwcount));
if (fwcount == 0) {
DHD_PNO(("No more batch results\n"));
goto exit_mutex_unlock;
}
if (fwcount > BESTN_MAX) {
DHD_ERROR(("%s :fwcount %d is greater than BESTN_MAX %d \n",
__FUNCTION__, fwcount, (int)BESTN_MAX));
/* Process only BESTN_MAX number of results per batch */
fwcount = BESTN_MAX;
}
num_scans_in_cur_iter = 0;
timestamp = plnetinfo->timestamp;
/* find out how many scans' results did we get in
* this batch of FW results
*/
for (i = 0, count = 0; i < fwcount; i++, count++, plnetinfo++) {
/* Unlikely to happen, but just in case the results from
* FW doesnt make sense..... Assume its part of one single scan
*/
if (num_scans_in_cur_iter >= gscan_params->mscan) {
num_scans_in_cur_iter = 0;
count = fwcount;
break;
}
if (TIME_DIFF_MS(timestamp, plnetinfo->timestamp) > timediff) {
nAPs_per_scan[num_scans_in_cur_iter] = count;
count = 0;
num_scans_in_cur_iter++;
}
timestamp = plnetinfo->timestamp;
}
if (num_scans_in_cur_iter < gscan_params->mscan) {
nAPs_per_scan[num_scans_in_cur_iter] = count;
num_scans_in_cur_iter++;
}
DHD_PNO(("num_scans_in_cur_iter %d\n", num_scans_in_cur_iter));
/* reset plnetinfo to the first item for the next loop */
plnetinfo -= i;
for (i = 0; i < num_scans_in_cur_iter; i++) {
iter = (gscan_results_cache_t *)
MALLOCZ(dhd->osh, ((nAPs_per_scan[i] - 1) *
sizeof(wifi_gscan_result_t)) +
sizeof(gscan_results_cache_t));
if (!iter) {
DHD_ERROR(("%s :Out of memory!! Cant malloc %d bytes\n",
__FUNCTION__, gscan_params->mscan));
err = BCME_NOMEM;
goto exit_mutex_unlock;
}
/* Need this check because the new set of results from FW
* maybe a continuation of previous sets' scan results
*/
if (TIME_DIFF_MS(ts, plnetinfo->timestamp) > timediff) {
iter->scan_id = ++gscan_params->scan_id;
} else {
iter->scan_id = gscan_params->scan_id;
}
DHD_PNO(("scan_id %d tot_count %d \n",
gscan_params->scan_id, nAPs_per_scan[i]));
iter->tot_count = nAPs_per_scan[i];
iter->tot_consumed = 0;
iter->flag = 0;
if (plnetinfo->flags & PFN_PARTIAL_SCAN_MASK) {
DHD_PNO(("This scan is aborted\n"));
iter->flag = (ENABLE << PNO_STATUS_ABORT);
} else if (gscan_params->reason) {
iter->flag = (ENABLE << gscan_params->reason);
}
if (!tail) {
gscan_params->gscan_batch_cache = iter;
} else {
tail->next = iter;
}
tail = iter;
iter->next = NULL;
for (j = 0; j < nAPs_per_scan[i]; j++, plnetinfo++) {
result = &iter->results[j];
result->channel =
wf_channel2mhz(plnetinfo->pfnsubnet.channel,
(plnetinfo->pfnsubnet.channel <= CH_MAX_2G_CHANNEL?
WF_CHAN_FACTOR_2_4_G : WF_CHAN_FACTOR_5_G));
result->rssi = (int32) plnetinfo->RSSI;
result->beacon_period = 0;
result->capability = 0;
result->rtt = (uint64) plnetinfo->rtt0;
result->rtt_sd = (uint64) plnetinfo->rtt1;
result->ts = convert_fw_rel_time_to_systime(&tm_spec,
plnetinfo->timestamp);
ts = plnetinfo->timestamp;
if (plnetinfo->pfnsubnet.SSID_len > DOT11_MAX_SSID_LEN) {
DHD_ERROR(("%s: Invalid SSID length %d\n",
__FUNCTION__,
plnetinfo->pfnsubnet.SSID_len));
plnetinfo->pfnsubnet.SSID_len = DOT11_MAX_SSID_LEN;
}
memcpy(result->ssid, plnetinfo->pfnsubnet.SSID,
plnetinfo->pfnsubnet.SSID_len);
result->ssid[plnetinfo->pfnsubnet.SSID_len] = '\0';
memcpy(&result->macaddr, &plnetinfo->pfnsubnet.BSSID,
ETHER_ADDR_LEN);
DHD_PNO(("\tSSID : "));
DHD_PNO(("\n"));
DHD_PNO(("\tBSSID: "MACDBG"\n",
MAC2STRDBG(result->macaddr.octet)));
DHD_PNO(("\tchannel: %d, RSSI: %d, timestamp: %d ms\n",
plnetinfo->pfnsubnet.channel,
plnetinfo->RSSI, plnetinfo->timestamp));
DHD_PNO(("\tRTT0 : %d, RTT1: %d\n",
plnetinfo->rtt0, plnetinfo->rtt1));
}
}
} else if (plbestnet_v2->version == PFN_LBEST_SCAN_RESULT_VERSION_V2) {
fwstatus = plbestnet_v2->status;
fwcount = plbestnet_v2->count;
plnetinfo_v2 = (wl_pfn_lnet_info_v2_t*)&plbestnet_v2->netinfo[0];
DHD_PNO(("ver %d, status : %d, count %d\n",
plbestnet_v2->version, fwstatus, fwcount));
if (fwcount == 0) {
DHD_PNO(("No more batch results\n"));
goto exit_mutex_unlock;
}
if (fwcount > BESTN_MAX) {
DHD_ERROR(("%s :fwcount %d is greater than BESTN_MAX %d \n",
__FUNCTION__, fwcount, (int)BESTN_MAX));
/* Process only BESTN_MAX number of results per batch */
fwcount = BESTN_MAX;
}
num_scans_in_cur_iter = 0;
timestamp = plnetinfo_v2->timestamp;
/* find out how many scans' results did we get
* in this batch of FW results
*/
for (i = 0, count = 0; i < fwcount; i++, count++, plnetinfo_v2++) {
/* Unlikely to happen, but just in case the results from
* FW doesnt make sense..... Assume its part of one single scan
*/
if (num_scans_in_cur_iter >= gscan_params->mscan) {
num_scans_in_cur_iter = 0;
count = fwcount;
break;
}
if (TIME_DIFF_MS(timestamp, plnetinfo_v2->timestamp) > timediff) {
nAPs_per_scan[num_scans_in_cur_iter] = count;
count = 0;
num_scans_in_cur_iter++;
}
timestamp = plnetinfo_v2->timestamp;
}
if (num_scans_in_cur_iter < gscan_params->mscan) {
nAPs_per_scan[num_scans_in_cur_iter] = count;
num_scans_in_cur_iter++;
}
DHD_PNO(("num_scans_in_cur_iter %d\n", num_scans_in_cur_iter));
/* reset plnetinfo to the first item for the next loop */
plnetinfo_v2 -= i;
for (i = 0; i < num_scans_in_cur_iter; i++) {
iter = (gscan_results_cache_t *)
MALLOCZ(dhd->osh, ((nAPs_per_scan[i] - 1) *
sizeof(wifi_gscan_result_t)) +
sizeof(gscan_results_cache_t));
if (!iter) {
DHD_ERROR(("%s :Out of memory!! Cant malloc %d bytes\n",
__FUNCTION__, gscan_params->mscan));
err = BCME_NOMEM;
goto exit_mutex_unlock;
}
/* Need this check because the new set of results from FW
* maybe a continuation of previous sets' scan results
*/
if (TIME_DIFF_MS(ts, plnetinfo_v2->timestamp) > timediff) {
iter->scan_id = ++gscan_params->scan_id;
} else {
iter->scan_id = gscan_params->scan_id;
}
DHD_PNO(("scan_id %d tot_count %d ch_bucket %x\n",
gscan_params->scan_id, nAPs_per_scan[i],
plbestnet_v2->scan_ch_buckets[i]));
iter->tot_count = nAPs_per_scan[i];
iter->scan_ch_bucket = plbestnet_v2->scan_ch_buckets[i];
iter->tot_consumed = 0;
iter->flag = 0;
if (plnetinfo_v2->flags & PFN_PARTIAL_SCAN_MASK) {
DHD_PNO(("This scan is aborted\n"));
iter->flag = (ENABLE << PNO_STATUS_ABORT);
} else if (gscan_params->reason) {
iter->flag = (ENABLE << gscan_params->reason);
}
if (!tail) {
gscan_params->gscan_batch_cache = iter;
} else {
tail->next = iter;
}
tail = iter;
iter->next = NULL;
for (j = 0; j < nAPs_per_scan[i]; j++, plnetinfo_v2++) {
result = &iter->results[j];
result->channel =
wf_channel2mhz(plnetinfo_v2->pfnsubnet.channel,
(plnetinfo_v2->pfnsubnet.channel <=
CH_MAX_2G_CHANNEL?
WF_CHAN_FACTOR_2_4_G : WF_CHAN_FACTOR_5_G));
result->rssi = (int32) plnetinfo_v2->RSSI;
/* Info not available & not expected */
result->beacon_period = 0;
result->capability = 0;
result->rtt = (uint64) plnetinfo_v2->rtt0;
result->rtt_sd = (uint64) plnetinfo_v2->rtt1;
result->ts = convert_fw_rel_time_to_systime(&tm_spec,
plnetinfo_v2->timestamp);
ts = plnetinfo_v2->timestamp;
if (plnetinfo_v2->pfnsubnet.SSID_len > DOT11_MAX_SSID_LEN) {
DHD_ERROR(("%s: Invalid SSID length %d\n",
__FUNCTION__,
plnetinfo_v2->pfnsubnet.SSID_len));
plnetinfo_v2->pfnsubnet.SSID_len =
DOT11_MAX_SSID_LEN;
}
memcpy(result->ssid, plnetinfo_v2->pfnsubnet.u.SSID,
plnetinfo_v2->pfnsubnet.SSID_len);
result->ssid[plnetinfo_v2->pfnsubnet.SSID_len] = '\0';
memcpy(&result->macaddr, &plnetinfo_v2->pfnsubnet.BSSID,
ETHER_ADDR_LEN);
DHD_PNO(("\tSSID : "));
DHD_PNO(("\n"));
DHD_PNO(("\tBSSID: "MACDBG"\n",
MAC2STRDBG(result->macaddr.octet)));
DHD_PNO(("\tchannel: %d, RSSI: %d, timestamp: %d ms\n",
plnetinfo_v2->pfnsubnet.channel,
plnetinfo_v2->RSSI, plnetinfo_v2->timestamp));
DHD_PNO(("\tRTT0 : %d, RTT1: %d\n",
plnetinfo_v2->rtt0, plnetinfo_v2->rtt1));
}
}
} else {
err = BCME_VERSION;
DHD_ERROR(("bestnet fw version %d not supported\n",
plbestnet_v1->version));
goto exit_mutex_unlock;
}
} while (fwstatus == PFN_INCOMPLETE);
exit_mutex_unlock:
mutex_unlock(&_pno_state->pno_mutex);
exit:
params->params_gscan.get_batch_flag = GSCAN_BATCH_RETRIEVAL_COMPLETE;
smp_wmb();
wake_up_interruptible(&_pno_state->batch_get_wait);
if (nAPs_per_scan) {
MFREE(dhd->osh, nAPs_per_scan, gscan_params->mscan * sizeof(uint8));
}
if (plbestnet_v1) {
MFREE(dhd->osh, plbestnet_v1, PNO_BESTNET_LEN);
}
DHD_PNO(("Batch retrieval done!\n"));
return err;
}
#endif /* GSCAN_SUPPORT */
#if defined(GSCAN_SUPPORT) || defined(DHD_GET_VALID_CHANNELS)
static void *
dhd_get_gscan_batch_results(dhd_pub_t *dhd, uint32 *len)
{
gscan_results_cache_t *iter, *results;
dhd_pno_status_info_t *_pno_state;
dhd_pno_params_t *_params;
uint16 num_scan_ids = 0, num_results = 0;
_pno_state = PNO_GET_PNOSTATE(dhd);
_params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS];
iter = results = _params->params_gscan.gscan_batch_cache;
while (iter) {
num_results += iter->tot_count - iter->tot_consumed;
num_scan_ids++;
iter = iter->next;
}
*len = ((num_results << 16) | (num_scan_ids));
return results;
}
void *
dhd_pno_get_gscan(dhd_pub_t *dhd, dhd_pno_gscan_cmd_cfg_t type,
void *info, uint32 *len)
{
void *ret = NULL;
dhd_pno_gscan_capabilities_t *ptr;
dhd_pno_ssid_t *ssid_elem;
dhd_pno_params_t *_params;
dhd_epno_ssid_cfg_t *epno_cfg;
dhd_pno_status_info_t *_pno_state;
if (!dhd || !dhd->pno_state) {
DHD_ERROR(("NULL POINTER : %s\n", __FUNCTION__));
return NULL;
}
_pno_state = PNO_GET_PNOSTATE(dhd);
_params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS];
if (!len) {
DHD_ERROR(("%s: len is NULL\n", __FUNCTION__));
return NULL;
}
switch (type) {
case DHD_PNO_GET_CAPABILITIES:
ptr = (dhd_pno_gscan_capabilities_t *)
MALLOCZ(dhd->osh, sizeof(dhd_pno_gscan_capabilities_t));
if (!ptr)
break;
/* Hardcoding these values for now, need to get
* these values from FW, will change in a later check-in
*/
ptr->max_scan_cache_size = GSCAN_MAX_AP_CACHE;
ptr->max_scan_buckets = GSCAN_MAX_CH_BUCKETS;
ptr->max_ap_cache_per_scan = GSCAN_MAX_AP_CACHE_PER_SCAN;
ptr->max_rssi_sample_size = PFN_SWC_RSSI_WINDOW_MAX;
ptr->max_scan_reporting_threshold = 100;
ptr->max_hotlist_bssids = PFN_HOTLIST_MAX_NUM_APS;
ptr->max_hotlist_ssids = 0;
ptr->max_significant_wifi_change_aps = 0;
ptr->max_bssid_history_entries = 0;
ptr->max_epno_ssid_crc32 = MAX_EPNO_SSID_NUM;
ptr->max_epno_hidden_ssid = MAX_EPNO_HIDDEN_SSID;
ptr->max_white_list_ssid = MAX_WHITELIST_SSID;
ret = (void *)ptr;
*len = sizeof(dhd_pno_gscan_capabilities_t);
break;
case DHD_PNO_GET_BATCH_RESULTS:
ret = dhd_get_gscan_batch_results(dhd, len);
break;
case DHD_PNO_GET_CHANNEL_LIST:
if (info) {
uint16 ch_list[WL_NUMCHANNELS];
uint32 *p, mem_needed, i;
int32 err, nchan = WL_NUMCHANNELS;
uint32 *gscan_band = (uint32 *) info;
uint8 band = 0;
/* No band specified?, nothing to do */
if ((*gscan_band & GSCAN_BAND_MASK) == 0) {
DHD_PNO(("No band specified\n"));
*len = 0;
break;
}
/* HAL and DHD use different bits for 2.4G and
* 5G in bitmap. Hence translating it here...
*/
if (*gscan_band & GSCAN_BG_BAND_MASK) {
band |= WLC_BAND_2G;
}
if (*gscan_band & GSCAN_A_BAND_MASK) {
band |= WLC_BAND_5G;
}
err = _dhd_pno_get_channels(dhd, ch_list, &nchan,
(band & GSCAN_ABG_BAND_MASK),
!(*gscan_band & GSCAN_DFS_MASK));
if (err < 0) {
DHD_ERROR(("%s: failed to get valid channel list\n",
__FUNCTION__));
*len = 0;
} else {
mem_needed = sizeof(uint32) * nchan;
p = (uint32 *)MALLOC(dhd->osh, mem_needed);
if (!p) {
DHD_ERROR(("%s: Unable to malloc %d bytes\n",
__FUNCTION__, mem_needed));
break;
}
for (i = 0; i < nchan; i++) {
p[i] = wf_channel2mhz(ch_list[i],
(ch_list[i] <= CH_MAX_2G_CHANNEL?
WF_CHAN_FACTOR_2_4_G : WF_CHAN_FACTOR_5_G));
}
ret = p;
*len = mem_needed;
}
} else {
*len = 0;
DHD_ERROR(("%s: info buffer is NULL\n", __FUNCTION__));
}
break;
case DHD_PNO_GET_NEW_EPNO_SSID_ELEM:
epno_cfg = &_params->params_gscan.epno_cfg;
if (epno_cfg->num_epno_ssid >=
MAX_EPNO_SSID_NUM) {
DHD_ERROR(("Excessive number of ePNO SSIDs programmed %d\n",
epno_cfg->num_epno_ssid));
return NULL;
}
if (!epno_cfg->num_epno_ssid) {
INIT_LIST_HEAD(&epno_cfg->epno_ssid_list);
}
ssid_elem = MALLOCZ(dhd->osh, sizeof(dhd_pno_ssid_t));
if (!ssid_elem) {
DHD_ERROR(("EPNO ssid: cannot alloc %zd bytes",
sizeof(dhd_pno_ssid_t)));
return NULL;
}
epno_cfg->num_epno_ssid++;
list_add_tail(&ssid_elem->list, &epno_cfg->epno_ssid_list);
ret = ssid_elem;
break;
default:
DHD_ERROR(("%s: Unrecognized cmd type - %d\n", __FUNCTION__, type));
break;
}
return ret;
}
#endif /* GSCAN_SUPPORT || DHD_GET_VALID_CHANNELS */
static int
_dhd_pno_get_for_batch(dhd_pub_t *dhd, char *buf, int bufsize, int reason)
{
int err = BCME_OK;
int i, j;
uint32 timestamp = 0;
dhd_pno_params_t *_params = NULL;
dhd_pno_status_info_t *_pno_state = NULL;
wl_pfn_lscanresults_v1_t *plbestnet_v1 = NULL;
wl_pfn_lscanresults_v2_t *plbestnet_v2 = NULL;
wl_pfn_lnet_info_v1_t *plnetinfo;
wl_pfn_lnet_info_v2_t *plnetinfo_v2;
dhd_pno_bestnet_entry_t *pbestnet_entry;
dhd_pno_best_header_t *pbestnetheader = NULL;
dhd_pno_scan_results_t *pscan_results = NULL, *siter, *snext;
bool allocate_header = FALSE;
uint16 fwstatus = PFN_INCOMPLETE;
uint16 fwcount;
NULL_CHECK(dhd, "dhd is NULL", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
/* The static asserts below guarantee the v1 and v2 net_info and subnet_info
* structures are compatible in size and SSID offset, allowing v1 to be safely
* used in the code below except for lscanresults fields themselves
* (status, count, offset to netinfo).
*/
STATIC_ASSERT(sizeof(wl_pfn_net_info_v1_t) == sizeof(wl_pfn_net_info_v2_t));
STATIC_ASSERT(sizeof(wl_pfn_lnet_info_v1_t) == sizeof(wl_pfn_lnet_info_v2_t));
STATIC_ASSERT(sizeof(wl_pfn_subnet_info_v1_t) == sizeof(wl_pfn_subnet_info_v2_t));
STATIC_ASSERT(OFFSETOF(wl_pfn_subnet_info_v1_t, SSID) ==
OFFSETOF(wl_pfn_subnet_info_v2_t, u.SSID));
DHD_PNO(("%s enter\n", __FUNCTION__));
_pno_state = PNO_GET_PNOSTATE(dhd);
if (!dhd_support_sta_mode(dhd)) {
err = BCME_BADOPTION;
goto exit_no_unlock;
}
if (!WLS_SUPPORTED(_pno_state)) {
DHD_ERROR(("%s : wifi location service is not supported\n", __FUNCTION__));
err = BCME_UNSUPPORTED;
goto exit_no_unlock;
}
if (!(_pno_state->pno_mode & DHD_PNO_BATCH_MODE)) {
DHD_ERROR(("%s: Batching SCAN mode is not enabled\n", __FUNCTION__));
goto exit_no_unlock;
}
mutex_lock(&_pno_state->pno_mutex);
_params = &_pno_state->pno_params_arr[INDEX_OF_BATCH_PARAMS];
if (buf && bufsize) {
if (!list_empty(&_params->params_batch.get_batch.expired_scan_results_list)) {
/* need to check whether we have cashed data or not */
DHD_PNO(("%s: have cashed batching data in Driver\n",
__FUNCTION__));
/* convert to results format */
goto convert_format;
} else {
/* this is a first try to get batching results */
if (!list_empty(&_params->params_batch.get_batch.scan_results_list)) {
/* move the scan_results_list to expired_scan_results_lists */
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
list_for_each_entry_safe(siter, snext,
&_params->params_batch.get_batch.scan_results_list, list) {
GCC_DIAGNOSTIC_POP();
list_move_tail(&siter->list,
&_params->params_batch.get_batch.expired_scan_results_list);
}
_params->params_batch.get_batch.top_node_cnt = 0;
_params->params_batch.get_batch.expired_tot_scan_cnt =
_params->params_batch.get_batch.tot_scan_cnt;
_params->params_batch.get_batch.tot_scan_cnt = 0;
goto convert_format;
}
}
}
/* create dhd_pno_scan_results_t whenever we got event WLC_E_PFN_BEST_BATCHING */
pscan_results = (dhd_pno_scan_results_t *)MALLOC(dhd->osh, SCAN_RESULTS_SIZE);
if (pscan_results == NULL) {
err = BCME_NOMEM;
DHD_ERROR(("failed to allocate dhd_pno_scan_results_t\n"));
goto exit;
}
pscan_results->bestnetheader = NULL;
pscan_results->cnt_header = 0;
/* add the element into list unless total node cnt is less than MAX_NODE_ CNT */
if (_params->params_batch.get_batch.top_node_cnt < MAX_NODE_CNT) {
list_add(&pscan_results->list, &_params->params_batch.get_batch.scan_results_list);
_params->params_batch.get_batch.top_node_cnt++;
} else {
int _removed_scan_cnt;
/* remove oldest one and add new one */
DHD_PNO(("%s : Remove oldest node and add new one\n", __FUNCTION__));
_removed_scan_cnt = _dhd_pno_clear_all_batch_results(dhd,
&_params->params_batch.get_batch.scan_results_list, TRUE);
_params->params_batch.get_batch.tot_scan_cnt -= _removed_scan_cnt;
list_add(&pscan_results->list, &_params->params_batch.get_batch.scan_results_list);
}
plbestnet_v1 = (wl_pfn_lscanresults_v1_t *)MALLOC(dhd->osh, PNO_BESTNET_LEN);
NULL_CHECK(plbestnet_v1, "failed to allocate buffer for bestnet", err);
plbestnet_v2 = (wl_pfn_lscanresults_v2_t*)plbestnet_v1;
DHD_PNO(("%s enter\n", __FUNCTION__));
do {
err = dhd_iovar(dhd, 0, "pfnlbest", NULL, 0, (char *)plbestnet_v1, PNO_BESTNET_LEN,
FALSE);
if (err < 0) {
if (err == BCME_EPERM) {
DHD_ERROR(("we cannot get the batching data "
"during scanning in firmware, try again\n,"));
msleep(500);
continue;
} else {
DHD_ERROR(("%s : failed to execute pfnlbest (err :%d)\n",
__FUNCTION__, err));
goto exit;
}
}
if (plbestnet_v1->version == PFN_LBEST_SCAN_RESULT_VERSION_V1) {
fwstatus = plbestnet_v1->status;
fwcount = plbestnet_v1->count;
plnetinfo = &plbestnet_v1->netinfo[0];
if (fwcount == 0) {
DHD_PNO(("No more batch results\n"));
goto exit;
}
if (fwcount > BESTN_MAX) {
DHD_ERROR(("%s :fwcount %d is greater than BESTN_MAX %d \n",
__FUNCTION__, fwcount, (int)BESTN_MAX));
/* Process only BESTN_MAX number of results per batch */
fwcount = BESTN_MAX;
}
for (i = 0; i < fwcount; i++) {
pbestnet_entry = (dhd_pno_bestnet_entry_t *)
MALLOC(dhd->osh, BESTNET_ENTRY_SIZE);
if (pbestnet_entry == NULL) {
err = BCME_NOMEM;
DHD_ERROR(("failed to allocate dhd_pno_bestnet_entry\n"));
goto exit;
}
memset(pbestnet_entry, 0, BESTNET_ENTRY_SIZE);
/* record the current time */
pbestnet_entry->recorded_time = jiffies;
/* create header for the first entry */
allocate_header = (i == 0)? TRUE : FALSE;
/* check whether the new generation is started or not */
if (timestamp && (TIME_DIFF(timestamp, plnetinfo->timestamp)
> TIME_MIN_DIFF))
allocate_header = TRUE;
timestamp = plnetinfo->timestamp;
if (allocate_header) {
pbestnetheader = (dhd_pno_best_header_t *)
MALLOC(dhd->osh, BEST_HEADER_SIZE);
if (pbestnetheader == NULL) {
err = BCME_NOMEM;
if (pbestnet_entry)
MFREE(dhd->osh, pbestnet_entry,
BESTNET_ENTRY_SIZE);
DHD_ERROR(("failed to allocate"
" dhd_pno_bestnet_entry\n"));
goto exit;
}
/* increase total cnt of bestnet header */
pscan_results->cnt_header++;
/* need to record the reason to call dhd_pno_get_for_bach */
if (reason)
pbestnetheader->reason = (ENABLE << reason);
memset(pbestnetheader, 0, BEST_HEADER_SIZE);
/* initialize the head of linked list */
INIT_LIST_HEAD(&(pbestnetheader->entry_list));
/* link the pbestnet heaer into existed list */
if (pscan_results->bestnetheader == NULL)
/* In case of header */
pscan_results->bestnetheader = pbestnetheader;
else {
dhd_pno_best_header_t *head =
pscan_results->bestnetheader;
pscan_results->bestnetheader = pbestnetheader;
pbestnetheader->next = head;
}
}
pbestnet_entry->channel = plnetinfo->pfnsubnet.channel;
pbestnet_entry->RSSI = plnetinfo->RSSI;
if (plnetinfo->flags & PFN_PARTIAL_SCAN_MASK) {
/* if RSSI is positive value, we assume that
* this scan is aborted by other scan
*/
DHD_PNO(("This scan is aborted\n"));
pbestnetheader->reason = (ENABLE << PNO_STATUS_ABORT);
}
pbestnet_entry->rtt0 = plnetinfo->rtt0;
pbestnet_entry->rtt1 = plnetinfo->rtt1;
pbestnet_entry->timestamp = plnetinfo->timestamp;
if (plnetinfo->pfnsubnet.SSID_len > DOT11_MAX_SSID_LEN) {
DHD_ERROR(("%s: Invalid SSID length"
" %d: trimming it to max\n",
__FUNCTION__, plnetinfo->pfnsubnet.SSID_len));
plnetinfo->pfnsubnet.SSID_len = DOT11_MAX_SSID_LEN;
}
pbestnet_entry->SSID_len = plnetinfo->pfnsubnet.SSID_len;
memcpy(pbestnet_entry->SSID, plnetinfo->pfnsubnet.SSID,
pbestnet_entry->SSID_len);
memcpy(&pbestnet_entry->BSSID, &plnetinfo->pfnsubnet.BSSID,
ETHER_ADDR_LEN);
/* add the element into list */
list_add_tail(&pbestnet_entry->list, &pbestnetheader->entry_list);
/* increase best entry count */
pbestnetheader->tot_cnt++;
pbestnetheader->tot_size += BESTNET_ENTRY_SIZE;
DHD_PNO(("Header %d\n", pscan_results->cnt_header - 1));
DHD_PNO(("\tSSID : "));
for (j = 0; j < plnetinfo->pfnsubnet.SSID_len; j++)
DHD_PNO(("%c", plnetinfo->pfnsubnet.SSID[j]));
DHD_PNO(("\n"));
DHD_PNO(("\tBSSID: "MACDBG"\n",
MAC2STRDBG(plnetinfo->pfnsubnet.BSSID.octet)));
DHD_PNO(("\tchannel: %d, RSSI: %d, timestamp: %d ms\n",
plnetinfo->pfnsubnet.channel,
plnetinfo->RSSI, plnetinfo->timestamp));
DHD_PNO(("\tRTT0 : %d, RTT1: %d\n", plnetinfo->rtt0,
plnetinfo->rtt1));
plnetinfo++;
}
} else if (plbestnet_v2->version == PFN_LBEST_SCAN_RESULT_VERSION_V2) {
fwstatus = plbestnet_v2->status;
fwcount = plbestnet_v2->count;
plnetinfo_v2 = (wl_pfn_lnet_info_v2_t*)&plbestnet_v2->netinfo[0];
if (fwcount == 0) {
DHD_PNO(("No more batch results\n"));
goto exit;
}
if (fwcount > BESTN_MAX) {
DHD_ERROR(("%s :fwcount %d is greater than BESTN_MAX %d \n",
__FUNCTION__, fwcount, (int)BESTN_MAX));
/* Process only BESTN_MAX number of results per batch */
fwcount = BESTN_MAX;
}
DHD_PNO(("ver %d, status : %d, count %d\n",
plbestnet_v2->version, fwstatus, fwcount));
for (i = 0; i < fwcount; i++) {
pbestnet_entry = (dhd_pno_bestnet_entry_t *)
MALLOC(dhd->osh, BESTNET_ENTRY_SIZE);
if (pbestnet_entry == NULL) {
err = BCME_NOMEM;
DHD_ERROR(("failed to allocate dhd_pno_bestnet_entry\n"));
goto exit;
}
memset(pbestnet_entry, 0, BESTNET_ENTRY_SIZE);
/* record the current time */
pbestnet_entry->recorded_time = jiffies;
/* create header for the first entry */
allocate_header = (i == 0)? TRUE : FALSE;
/* check whether the new generation is started or not */
if (timestamp && (TIME_DIFF(timestamp, plnetinfo_v2->timestamp)
> TIME_MIN_DIFF))
allocate_header = TRUE;
timestamp = plnetinfo_v2->timestamp;
if (allocate_header) {
pbestnetheader = (dhd_pno_best_header_t *)
MALLOC(dhd->osh, BEST_HEADER_SIZE);
if (pbestnetheader == NULL) {
err = BCME_NOMEM;
if (pbestnet_entry)
MFREE(dhd->osh, pbestnet_entry,
BESTNET_ENTRY_SIZE);
DHD_ERROR(("failed to allocate"
" dhd_pno_bestnet_entry\n"));
goto exit;
}
/* increase total cnt of bestnet header */
pscan_results->cnt_header++;
/* need to record the reason to call dhd_pno_get_for_bach */
if (reason)
pbestnetheader->reason = (ENABLE << reason);
memset(pbestnetheader, 0, BEST_HEADER_SIZE);
/* initialize the head of linked list */
INIT_LIST_HEAD(&(pbestnetheader->entry_list));
/* link the pbestnet heaer into existed list */
if (pscan_results->bestnetheader == NULL)
/* In case of header */
pscan_results->bestnetheader = pbestnetheader;
else {
dhd_pno_best_header_t *head =
pscan_results->bestnetheader;
pscan_results->bestnetheader = pbestnetheader;
pbestnetheader->next = head;
}
}
/* fills the best network info */
pbestnet_entry->channel = plnetinfo_v2->pfnsubnet.channel;
pbestnet_entry->RSSI = plnetinfo_v2->RSSI;
if (plnetinfo_v2->flags & PFN_PARTIAL_SCAN_MASK) {
/* if RSSI is positive value, we assume that
* this scan is aborted by other scan
*/
DHD_PNO(("This scan is aborted\n"));
pbestnetheader->reason = (ENABLE << PNO_STATUS_ABORT);
}
pbestnet_entry->rtt0 = plnetinfo_v2->rtt0;
pbestnet_entry->rtt1 = plnetinfo_v2->rtt1;
pbestnet_entry->timestamp = plnetinfo_v2->timestamp;
if (plnetinfo_v2->pfnsubnet.SSID_len > DOT11_MAX_SSID_LEN) {
DHD_ERROR(("%s: Invalid SSID length"
" %d: trimming it to max\n",
__FUNCTION__, plnetinfo_v2->pfnsubnet.SSID_len));
plnetinfo_v2->pfnsubnet.SSID_len = DOT11_MAX_SSID_LEN;
}
pbestnet_entry->SSID_len = plnetinfo_v2->pfnsubnet.SSID_len;
memcpy(pbestnet_entry->SSID, plnetinfo_v2->pfnsubnet.u.SSID,
pbestnet_entry->SSID_len);
memcpy(&pbestnet_entry->BSSID, &plnetinfo_v2->pfnsubnet.BSSID,
ETHER_ADDR_LEN);
/* add the element into list */
list_add_tail(&pbestnet_entry->list, &pbestnetheader->entry_list);
/* increase best entry count */
pbestnetheader->tot_cnt++;
pbestnetheader->tot_size += BESTNET_ENTRY_SIZE;
DHD_PNO(("Header %d\n", pscan_results->cnt_header - 1));
DHD_PNO(("\tSSID : "));
for (j = 0; j < plnetinfo_v2->pfnsubnet.SSID_len; j++)
DHD_PNO(("%c", plnetinfo_v2->pfnsubnet.u.SSID[j]));
DHD_PNO(("\n"));
DHD_PNO(("\tBSSID: "MACDBG"\n",
MAC2STRDBG(plnetinfo_v2->pfnsubnet.BSSID.octet)));
DHD_PNO(("\tchannel: %d, RSSI: %d, timestamp: %d ms\n",
plnetinfo_v2->pfnsubnet.channel,
plnetinfo_v2->RSSI, plnetinfo_v2->timestamp));
DHD_PNO(("\tRTT0 : %d, RTT1: %d\n", plnetinfo_v2->rtt0,
plnetinfo_v2->rtt1));
plnetinfo_v2++;
}
} else {
err = BCME_VERSION;
DHD_ERROR(("bestnet fw version %d not supported\n",
plbestnet_v1->version));
goto exit;
}
} while (fwstatus != PFN_COMPLETE);
if (pscan_results->cnt_header == 0) {
/* In case that we didn't get any data from the firmware
* Remove the current scan_result list from get_bach.scan_results_list.
*/
DHD_PNO(("NO BATCH DATA from Firmware, Delete current SCAN RESULT LIST\n"));
list_del(&pscan_results->list);
MFREE(dhd->osh, pscan_results, SCAN_RESULTS_SIZE);
_params->params_batch.get_batch.top_node_cnt--;
} else {
/* increase total scan count using current scan count */
_params->params_batch.get_batch.tot_scan_cnt += pscan_results->cnt_header;
}
if (buf && bufsize) {
/* This is a first try to get batching results */
if (!list_empty(&_params->params_batch.get_batch.scan_results_list)) {
/* move the scan_results_list to expired_scan_results_lists */
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
list_for_each_entry_safe(siter, snext,
&_params->params_batch.get_batch.scan_results_list, list) {
GCC_DIAGNOSTIC_POP();
list_move_tail(&siter->list,
&_params->params_batch.get_batch.expired_scan_results_list);
}
/* reset gloval values after moving to expired list */
_params->params_batch.get_batch.top_node_cnt = 0;
_params->params_batch.get_batch.expired_tot_scan_cnt =
_params->params_batch.get_batch.tot_scan_cnt;
_params->params_batch.get_batch.tot_scan_cnt = 0;
}
convert_format:
err = _dhd_pno_convert_format(dhd, &_params->params_batch, buf, bufsize);
if (err < 0) {
DHD_ERROR(("failed to convert the data into upper layer format\n"));
goto exit;
}
}
exit:
if (plbestnet_v1)
MFREE(dhd->osh, plbestnet_v1, PNO_BESTNET_LEN);
if (_params) {
_params->params_batch.get_batch.buf = NULL;
_params->params_batch.get_batch.bufsize = 0;
_params->params_batch.get_batch.bytes_written = err;
}
mutex_unlock(&_pno_state->pno_mutex);
exit_no_unlock:
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 8, 0))
if (waitqueue_active(&_pno_state->get_batch_done.wait))
#else
if (!try_wait_for_completion(&_pno_state->get_batch_done))
#endif
complete(&_pno_state->get_batch_done);
return err;
}
static void
_dhd_pno_get_batch_handler(struct work_struct *work)
{
dhd_pno_status_info_t *_pno_state;
dhd_pub_t *dhd;
struct dhd_pno_batch_params *params_batch;
DHD_PNO(("%s enter\n", __FUNCTION__));
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
_pno_state = container_of(work, struct dhd_pno_status_info, work);
GCC_DIAGNOSTIC_POP();
dhd = _pno_state->dhd;
if (dhd == NULL) {
DHD_ERROR(("%s : dhd is NULL\n", __FUNCTION__));
return;
}
#ifdef GSCAN_SUPPORT
_dhd_pno_get_gscan_batch_from_fw(dhd);
#endif /* GSCAN_SUPPORT */
if (_pno_state->pno_mode & DHD_PNO_BATCH_MODE) {
params_batch = &_pno_state->pno_params_arr[INDEX_OF_BATCH_PARAMS].params_batch;
_dhd_pno_get_for_batch(dhd, params_batch->get_batch.buf,
params_batch->get_batch.bufsize, params_batch->get_batch.reason);
}
}
int
dhd_pno_get_for_batch(dhd_pub_t *dhd, char *buf, int bufsize, int reason)
{
int err = BCME_OK;
char *pbuf = buf;
dhd_pno_status_info_t *_pno_state;
struct dhd_pno_batch_params *params_batch;
NULL_CHECK(dhd, "dhd is NULL", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
if (!dhd_support_sta_mode(dhd)) {
err = BCME_BADOPTION;
goto exit;
}
DHD_PNO(("%s enter\n", __FUNCTION__));
_pno_state = PNO_GET_PNOSTATE(dhd);
if (!WLS_SUPPORTED(_pno_state)) {
DHD_ERROR(("%s : wifi location service is not supported\n", __FUNCTION__));
err = BCME_UNSUPPORTED;
goto exit;
}
params_batch = &_pno_state->pno_params_arr[INDEX_OF_BATCH_PARAMS].params_batch;
#ifdef GSCAN_SUPPORT
if (_pno_state->pno_mode & DHD_PNO_GSCAN_MODE) {
struct dhd_pno_gscan_params *gscan_params;
gscan_params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS].params_gscan;
gscan_params->reason = reason;
err = dhd_retreive_batch_scan_results(dhd);
if (err == BCME_OK) {
wait_event_interruptible_timeout(_pno_state->batch_get_wait,
is_batch_retrieval_complete(gscan_params),
msecs_to_jiffies(GSCAN_BATCH_GET_MAX_WAIT));
}
} else
#endif // endif
{
if (!(_pno_state->pno_mode & DHD_PNO_BATCH_MODE)) {
DHD_ERROR(("%s: Batching SCAN mode is not enabled\n", __FUNCTION__));
memset(pbuf, 0, bufsize);
pbuf += snprintf(pbuf, bufsize, "scancount=%d\n", 0);
snprintf(pbuf, bufsize, "%s", RESULTS_END_MARKER);
err = strlen(buf);
goto exit;
}
params_batch->get_batch.buf = buf;
params_batch->get_batch.bufsize = bufsize;
params_batch->get_batch.reason = reason;
params_batch->get_batch.bytes_written = 0;
schedule_work(&_pno_state->work);
wait_for_completion(&_pno_state->get_batch_done);
}
#ifdef GSCAN_SUPPORT
if (!(_pno_state->pno_mode & DHD_PNO_GSCAN_MODE))
#endif // endif
err = params_batch->get_batch.bytes_written;
exit:
return err;
}
int
dhd_pno_stop_for_batch(dhd_pub_t *dhd)
{
int err = BCME_OK;
int mode = 0;
int i = 0;
dhd_pno_status_info_t *_pno_state;
dhd_pno_params_t *_params;
wl_pfn_bssid_t *p_pfn_bssid = NULL;
NULL_CHECK(dhd, "dhd is NULL", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
_pno_state = PNO_GET_PNOSTATE(dhd);
DHD_PNO(("%s enter\n", __FUNCTION__));
if (!dhd_support_sta_mode(dhd)) {
err = BCME_BADOPTION;
goto exit;
}
if (!WLS_SUPPORTED(_pno_state)) {
DHD_ERROR(("%s : wifi location service is not supported\n",
__FUNCTION__));
err = BCME_UNSUPPORTED;
goto exit;
}
#ifdef GSCAN_SUPPORT
if (_pno_state->pno_mode & DHD_PNO_GSCAN_MODE) {
DHD_PNO(("Gscan is ongoing, nothing to stop here\n"));
return err;
}
#endif // endif
if (!(_pno_state->pno_mode & DHD_PNO_BATCH_MODE)) {
DHD_ERROR(("%s : PNO BATCH MODE is not enabled\n", __FUNCTION__));
goto exit;
}
_pno_state->pno_mode &= ~DHD_PNO_BATCH_MODE;
if (_pno_state->pno_mode & (DHD_PNO_LEGACY_MODE | DHD_PNO_HOTLIST_MODE)) {
mode = _pno_state->pno_mode;
err = dhd_pno_clean(dhd);
if (err < 0) {
DHD_ERROR(("%s : failed to call dhd_pno_clean (err: %d)\n",
__FUNCTION__, err));
goto exit;
}
_pno_state->pno_mode = mode;
/* restart Legacy PNO if the Legacy PNO is on */
if (_pno_state->pno_mode & DHD_PNO_LEGACY_MODE) {
struct dhd_pno_legacy_params *_params_legacy;
_params_legacy =
&(_pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS].params_legacy);
err = dhd_pno_set_legacy_pno(dhd, _params_legacy->scan_fr,
_params_legacy->pno_repeat,
_params_legacy->pno_freq_expo_max,
_params_legacy->chan_list, _params_legacy->nchan);
if (err < 0) {
DHD_ERROR(("%s : failed to restart legacy PNO scan(err: %d)\n",
__FUNCTION__, err));
goto exit;
}
} else if (_pno_state->pno_mode & DHD_PNO_HOTLIST_MODE) {
struct dhd_pno_bssid *iter, *next;
_params = &(_pno_state->pno_params_arr[INDEX_OF_HOTLIST_PARAMS]);
p_pfn_bssid = (wl_pfn_bssid_t *)MALLOCZ(dhd->osh,
sizeof(wl_pfn_bssid_t) * _params->params_hotlist.nbssid);
if (p_pfn_bssid == NULL) {
DHD_ERROR(("%s : failed to allocate wl_pfn_bssid_t array"
" (count: %d)",
__FUNCTION__, _params->params_hotlist.nbssid));
err = BCME_ERROR;
_pno_state->pno_mode &= ~DHD_PNO_HOTLIST_MODE;
goto exit;
}
i = 0;
/* convert dhd_pno_bssid to wl_pfn_bssid */
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
list_for_each_entry_safe(iter, next,
&_params->params_hotlist.bssid_list, list) {
GCC_DIAGNOSTIC_POP();
memcpy(&p_pfn_bssid[i].macaddr, &iter->macaddr, ETHER_ADDR_LEN);
p_pfn_bssid[i].flags = iter->flags;
i++;
}
err = dhd_pno_set_for_hotlist(dhd, p_pfn_bssid, &_params->params_hotlist);
if (err < 0) {
_pno_state->pno_mode &= ~DHD_PNO_HOTLIST_MODE;
DHD_ERROR(("%s : failed to restart hotlist scan(err: %d)\n",
__FUNCTION__, err));
goto exit;
}
}
} else {
err = dhd_pno_clean(dhd);
if (err < 0) {
DHD_ERROR(("%s : failed to call dhd_pno_clean (err: %d)\n",
__FUNCTION__, err));
goto exit;
}
}
exit:
_params = &_pno_state->pno_params_arr[INDEX_OF_BATCH_PARAMS];
_dhd_pno_reinitialize_prof(dhd, _params, DHD_PNO_BATCH_MODE);
MFREE(dhd->osh, p_pfn_bssid,
sizeof(wl_pfn_bssid_t) * _params->params_hotlist.nbssid);
return err;
}
int
dhd_pno_set_for_hotlist(dhd_pub_t *dhd, wl_pfn_bssid_t *p_pfn_bssid,
struct dhd_pno_hotlist_params *hotlist_params)
{
int err = BCME_OK;
int i;
uint16 _chan_list[WL_NUMCHANNELS];
int rem_nchan = 0;
int tot_nchan = 0;
int mode = 0;
dhd_pno_params_t *_params;
dhd_pno_params_t *_params2;
struct dhd_pno_bssid *_pno_bssid;
dhd_pno_status_info_t *_pno_state;
NULL_CHECK(dhd, "dhd is NULL", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
NULL_CHECK(hotlist_params, "hotlist_params is NULL", err);
NULL_CHECK(p_pfn_bssid, "p_pfn_bssid is NULL", err);
_pno_state = PNO_GET_PNOSTATE(dhd);
DHD_PNO(("%s enter\n", __FUNCTION__));
if (!dhd_support_sta_mode(dhd)) {
err = BCME_BADOPTION;
goto exit;
}
if (!WLS_SUPPORTED(_pno_state)) {
DHD_ERROR(("%s : wifi location service is not supported\n", __FUNCTION__));
err = BCME_UNSUPPORTED;
goto exit;
}
_params = &_pno_state->pno_params_arr[INDEX_OF_HOTLIST_PARAMS];
if (!(_pno_state->pno_mode & DHD_PNO_HOTLIST_MODE)) {
_pno_state->pno_mode |= DHD_PNO_HOTLIST_MODE;
err = _dhd_pno_reinitialize_prof(dhd, _params, DHD_PNO_HOTLIST_MODE);
if (err < 0) {
DHD_ERROR(("%s : failed to call _dhd_pno_reinitialize_prof\n",
__FUNCTION__));
goto exit;
}
}
_params->params_batch.nchan = hotlist_params->nchan;
_params->params_batch.scan_fr = hotlist_params->scan_fr;
if (hotlist_params->nchan)
memcpy(_params->params_hotlist.chan_list, hotlist_params->chan_list,
sizeof(_params->params_hotlist.chan_list));
memset(_chan_list, 0, sizeof(_chan_list));
rem_nchan = ARRAYSIZE(hotlist_params->chan_list) - hotlist_params->nchan;
if (hotlist_params->band == WLC_BAND_2G || hotlist_params->band == WLC_BAND_5G) {
/* get a valid channel list based on band B or A */
err = _dhd_pno_get_channels(dhd,
&_params->params_hotlist.chan_list[hotlist_params->nchan],
&rem_nchan, hotlist_params->band, FALSE);
if (err < 0) {
DHD_ERROR(("%s: failed to get valid channel list(band : %d)\n",
__FUNCTION__, hotlist_params->band));
goto exit;
}
/* now we need to update nchan because rem_chan has valid channel count */
_params->params_hotlist.nchan += rem_nchan;
/* need to sort channel list */
sort(_params->params_hotlist.chan_list, _params->params_hotlist.nchan,
sizeof(_params->params_hotlist.chan_list[0]), _dhd_pno_cmpfunc, NULL);
}
#ifdef PNO_DEBUG
{
int i;
DHD_PNO(("Channel list : "));
for (i = 0; i < _params->params_batch.nchan; i++) {
DHD_PNO(("%d ", _params->params_batch.chan_list[i]));
}
DHD_PNO(("\n"));
}
#endif // endif
if (_params->params_hotlist.nchan) {
/* copy the channel list into local array */
memcpy(_chan_list, _params->params_hotlist.chan_list,
sizeof(_chan_list));
tot_nchan = _params->params_hotlist.nchan;
}
if (_pno_state->pno_mode & DHD_PNO_LEGACY_MODE) {
DHD_PNO(("PNO SSID is on progress in firmware\n"));
/* store current pno_mode before disabling pno */
mode = _pno_state->pno_mode;
err = _dhd_pno_enable(dhd, PNO_OFF);
if (err < 0) {
DHD_ERROR(("%s : failed to disable PNO\n", __FUNCTION__));
goto exit;
}
/* restore the previous mode */
_pno_state->pno_mode = mode;
/* Use the superset for channelist between two mode */
_params2 = &(_pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS]);
if (_params2->params_legacy.nchan > 0 &&
_params->params_hotlist.nchan > 0) {
err = _dhd_pno_chan_merge(_chan_list, &tot_nchan,
&_params2->params_legacy.chan_list[0],
_params2->params_legacy.nchan,
&_params->params_hotlist.chan_list[0],
_params->params_hotlist.nchan);
if (err < 0) {
DHD_ERROR(("%s : failed to merge channel list"
"between legacy and hotlist\n",
__FUNCTION__));
goto exit;
}
}
}
INIT_LIST_HEAD(&(_params->params_hotlist.bssid_list));
err = _dhd_pno_add_bssid(dhd, p_pfn_bssid, hotlist_params->nbssid);
if (err < 0) {
DHD_ERROR(("%s : failed to call _dhd_pno_add_bssid(err :%d)\n",
__FUNCTION__, err));
goto exit;
}
if ((err = _dhd_pno_set(dhd, _params, DHD_PNO_HOTLIST_MODE)) < 0) {
DHD_ERROR(("%s : failed to set call pno_set (err %d) in firmware\n",
__FUNCTION__, err));
goto exit;
}
if (tot_nchan > 0) {
if ((err = _dhd_pno_cfg(dhd, _chan_list, tot_nchan)) < 0) {
DHD_ERROR(("%s : failed to set call pno_cfg (err %d) in firmware\n",
__FUNCTION__, err));
goto exit;
}
}
for (i = 0; i < hotlist_params->nbssid; i++) {
_pno_bssid = (struct dhd_pno_bssid *)MALLOCZ(dhd->osh,
sizeof(struct dhd_pno_bssid));
NULL_CHECK(_pno_bssid, "_pfn_bssid is NULL", err);
memcpy(&_pno_bssid->macaddr, &p_pfn_bssid[i].macaddr, ETHER_ADDR_LEN);
_pno_bssid->flags = p_pfn_bssid[i].flags;
list_add_tail(&_pno_bssid->list, &_params->params_hotlist.bssid_list);
}
_params->params_hotlist.nbssid = hotlist_params->nbssid;
if (_pno_state->pno_status == DHD_PNO_DISABLED) {
if ((err = _dhd_pno_enable(dhd, PNO_ON)) < 0)
DHD_ERROR(("%s : failed to enable PNO\n", __FUNCTION__));
}
exit:
/* clear mode in case of error */
if (err < 0)
_pno_state->pno_mode &= ~DHD_PNO_HOTLIST_MODE;
return err;
}
int
dhd_pno_stop_for_hotlist(dhd_pub_t *dhd)
{
int err = BCME_OK;
uint32 mode = 0;
dhd_pno_status_info_t *_pno_state;
dhd_pno_params_t *_params;
NULL_CHECK(dhd, "dhd is NULL", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
_pno_state = PNO_GET_PNOSTATE(dhd);
if (!WLS_SUPPORTED(_pno_state)) {
DHD_ERROR(("%s : wifi location service is not supported\n",
__FUNCTION__));
err = BCME_UNSUPPORTED;
goto exit;
}
if (!(_pno_state->pno_mode & DHD_PNO_HOTLIST_MODE)) {
DHD_ERROR(("%s : Hotlist MODE is not enabled\n",
__FUNCTION__));
goto exit;
}
_pno_state->pno_mode &= ~DHD_PNO_BATCH_MODE;
if (_pno_state->pno_mode & (DHD_PNO_LEGACY_MODE | DHD_PNO_BATCH_MODE)) {
/* retrieve the batching data from firmware into host */
dhd_pno_get_for_batch(dhd, NULL, 0, PNO_STATUS_DISABLE);
/* save current pno_mode before calling dhd_pno_clean */
mode = _pno_state->pno_mode;
err = dhd_pno_clean(dhd);
if (err < 0) {
DHD_ERROR(("%s : failed to call dhd_pno_clean (err: %d)\n",
__FUNCTION__, err));
goto exit;
}
/* restore previos pno mode */
_pno_state->pno_mode = mode;
if (_pno_state->pno_mode & DHD_PNO_LEGACY_MODE) {
/* restart Legacy PNO Scan */
struct dhd_pno_legacy_params *_params_legacy;
_params_legacy =
&(_pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS].params_legacy);
err = dhd_pno_set_legacy_pno(dhd, _params_legacy->scan_fr,
_params_legacy->pno_repeat, _params_legacy->pno_freq_expo_max,
_params_legacy->chan_list, _params_legacy->nchan);
if (err < 0) {
DHD_ERROR(("%s : failed to restart legacy PNO scan(err: %d)\n",
__FUNCTION__, err));
goto exit;
}
} else if (_pno_state->pno_mode & DHD_PNO_BATCH_MODE) {
/* restart Batching Scan */
_params = &(_pno_state->pno_params_arr[INDEX_OF_BATCH_PARAMS]);
/* restart BATCH SCAN */
err = dhd_pno_set_for_batch(dhd, &_params->params_batch);
if (err < 0) {
_pno_state->pno_mode &= ~DHD_PNO_BATCH_MODE;
DHD_ERROR(("%s : failed to restart batch scan(err: %d)\n",
__FUNCTION__, err));
goto exit;
}
}
} else {
err = dhd_pno_clean(dhd);
if (err < 0) {
DHD_ERROR(("%s : failed to call dhd_pno_clean (err: %d)\n",
__FUNCTION__, err));
goto exit;
}
}
exit:
return err;
}
#ifdef GSCAN_SUPPORT
int
dhd_retreive_batch_scan_results(dhd_pub_t *dhd)
{
int err = BCME_OK;
dhd_pno_status_info_t *_pno_state;
dhd_pno_params_t *_params;
struct dhd_pno_batch_params *params_batch;
NULL_CHECK(dhd, "dhd is NULL", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
_pno_state = PNO_GET_PNOSTATE(dhd);
_params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS];
params_batch = &_pno_state->pno_params_arr[INDEX_OF_BATCH_PARAMS].params_batch;
if (_params->params_gscan.get_batch_flag == GSCAN_BATCH_RETRIEVAL_COMPLETE) {
DHD_PNO(("Retreive batch results\n"));
params_batch->get_batch.buf = NULL;
params_batch->get_batch.bufsize = 0;
params_batch->get_batch.reason = PNO_STATUS_EVENT;
_params->params_gscan.get_batch_flag = GSCAN_BATCH_RETRIEVAL_IN_PROGRESS;
smp_wmb();
schedule_work(&_pno_state->work);
} else {
DHD_PNO(("%s : WLC_E_PFN_BEST_BATCHING retrieval"
"already in progress, will skip\n", __FUNCTION__));
err = BCME_ERROR;
}
return err;
}
void
dhd_gscan_hotlist_cache_cleanup(dhd_pub_t *dhd, hotlist_type_t type)
{
dhd_pno_status_info_t *_pno_state = PNO_GET_PNOSTATE(dhd);
struct dhd_pno_gscan_params *gscan_params;
gscan_results_cache_t *iter, *tmp;
if (!_pno_state) {
return;
}
gscan_params = &(_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS].params_gscan);
if (type == HOTLIST_FOUND) {
iter = gscan_params->gscan_hotlist_found;
gscan_params->gscan_hotlist_found = NULL;
} else {
iter = gscan_params->gscan_hotlist_lost;
gscan_params->gscan_hotlist_lost = NULL;
}
while (iter) {
tmp = iter->next;
MFREE(dhd->osh, iter,
((iter->tot_count - 1) * sizeof(wifi_gscan_result_t))
+ sizeof(gscan_results_cache_t));
iter = tmp;
}
return;
}
void *
dhd_process_full_gscan_result(dhd_pub_t *dhd, const void *data, uint32 len, int *size)
{
wl_bss_info_t *bi = NULL;
wl_gscan_result_t *gscan_result;
wifi_gscan_full_result_t *result = NULL;
u32 bi_length = 0;
uint8 channel;
uint32 mem_needed;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0))
struct timespec64 ts;
#else
struct timespec ts;
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)) */
u32 bi_ie_length = 0;
u32 bi_ie_offset = 0;
*size = 0;
GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
gscan_result = (wl_gscan_result_t *)data;
GCC_DIAGNOSTIC_POP();
if (!gscan_result) {
DHD_ERROR(("Invalid gscan result (NULL pointer)\n"));
goto exit;
}
if ((len < sizeof(*gscan_result)) ||
(len < dtoh32(gscan_result->buflen)) ||
(dtoh32(gscan_result->buflen) >
(sizeof(*gscan_result) + WL_SCAN_IE_LEN_MAX))) {
DHD_ERROR(("%s: invalid gscan buflen:%u\n", __FUNCTION__,
dtoh32(gscan_result->buflen)));
goto exit;
}
bi = &gscan_result->bss_info[0].info;
bi_length = dtoh32(bi->length);
if (bi_length != (dtoh32(gscan_result->buflen) -
WL_GSCAN_RESULTS_FIXED_SIZE - WL_GSCAN_INFO_FIXED_FIELD_SIZE)) {
DHD_ERROR(("Invalid bss_info length %d: ignoring\n", bi_length));
goto exit;
}
bi_ie_offset = dtoh32(bi->ie_offset);
bi_ie_length = dtoh32(bi->ie_length);
if ((bi_ie_offset + bi_ie_length) > bi_length) {
DHD_ERROR(("%s: Invalid ie_length:%u or ie_offset:%u\n",
__FUNCTION__, bi_ie_length, bi_ie_offset));
goto exit;
}
if (bi->SSID_len > DOT11_MAX_SSID_LEN) {
DHD_ERROR(("%s: Invalid SSID length:%u\n", __FUNCTION__, bi->SSID_len));
goto exit;
}
mem_needed = OFFSETOF(wifi_gscan_full_result_t, ie_data) + bi->ie_length;
result = (wifi_gscan_full_result_t *)MALLOC(dhd->osh, mem_needed);
if (!result) {
DHD_ERROR(("%s Cannot malloc scan result buffer %d bytes\n",
__FUNCTION__, mem_needed));
goto exit;
}
result->scan_ch_bucket = gscan_result->scan_ch_bucket;
memcpy(result->fixed.ssid, bi->SSID, bi->SSID_len);
result->fixed.ssid[bi->SSID_len] = '\0';
channel = wf_chspec_ctlchan(bi->chanspec);
result->fixed.channel = wf_channel2mhz(channel,
(channel <= CH_MAX_2G_CHANNEL?
WF_CHAN_FACTOR_2_4_G : WF_CHAN_FACTOR_5_G));
result->fixed.rssi = (int32) bi->RSSI;
result->fixed.rtt = 0;
result->fixed.rtt_sd = 0;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0))
ktime_get_boottime_ts64(&ts);
#else
get_monotonic_boottime(&ts);
#endif
result->fixed.ts = (uint64) TIMESPEC_TO_US(ts);
result->fixed.beacon_period = dtoh16(bi->beacon_period);
result->fixed.capability = dtoh16(bi->capability);
result->ie_length = bi_ie_length;
memcpy(&result->fixed.macaddr, &bi->BSSID, ETHER_ADDR_LEN);
memcpy(result->ie_data, ((uint8 *)bi + bi_ie_offset), bi_ie_length);
*size = mem_needed;
exit:
return result;
}
void *
dhd_pno_process_epno_result(dhd_pub_t *dhd, const void *data, uint32 event, int *size)
{
dhd_epno_results_t *results = NULL;
dhd_pno_status_info_t *_pno_state = PNO_GET_PNOSTATE(dhd);
struct dhd_pno_gscan_params *gscan_params;
uint32 count, mem_needed = 0, i;
uint8 ssid[DOT11_MAX_SSID_LEN + 1];
struct ether_addr *bssid;
*size = 0;
if (!_pno_state)
return NULL;
gscan_params = &(_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS].params_gscan);
if (event == WLC_E_PFN_NET_FOUND || event == WLC_E_PFN_NET_LOST) {
wl_pfn_scanresults_v1_t *pfn_result = (wl_pfn_scanresults_v1_t *)data;
wl_pfn_scanresults_v2_t *pfn_result_v2 = (wl_pfn_scanresults_v2_t *)data;
wl_pfn_net_info_v1_t *net;
wl_pfn_net_info_v2_t *net_v2;
if (pfn_result->version == PFN_SCANRESULT_VERSION_V1) {
if ((pfn_result->count == 0) || (pfn_result->count > EVENT_MAX_NETCNT_V1)) {
DHD_ERROR(("%s event %d: wrong pfn v1 results count %d\n",
__FUNCTION__, event, pfn_result->count));
return NULL;
}
count = pfn_result->count;
mem_needed = sizeof(dhd_epno_results_t) * count;
results = (dhd_epno_results_t *)MALLOC(dhd->osh, mem_needed);
if (!results) {
DHD_ERROR(("%s: Can't malloc %d bytes for results\n", __FUNCTION__,
mem_needed));
return NULL;
}
for (i = 0; i < count; i++) {
net = &pfn_result->netinfo[i];
results[i].rssi = net->RSSI;
results[i].channel = wf_channel2mhz(net->pfnsubnet.channel,
(net->pfnsubnet.channel <= CH_MAX_2G_CHANNEL ?
WF_CHAN_FACTOR_2_4_G : WF_CHAN_FACTOR_5_G));
results[i].flags = (event == WLC_E_PFN_NET_FOUND) ?
WL_PFN_SSID_EXT_FOUND: WL_PFN_SSID_EXT_LOST;
results[i].ssid_len = min(net->pfnsubnet.SSID_len,
(uint8)DOT11_MAX_SSID_LEN);
bssid = &results[i].bssid;
memcpy(bssid, &net->pfnsubnet.BSSID, ETHER_ADDR_LEN);
if (!net->pfnsubnet.SSID_len) {
DHD_ERROR(("%s: Gscan results indexing is not"
" supported in version 1 \n", __FUNCTION__));
MFREE(dhd->osh, results, mem_needed);
return NULL;
} else {
memcpy(results[i].ssid, net->pfnsubnet.SSID,
results[i].ssid_len);
}
memcpy(ssid, results[i].ssid, results[i].ssid_len);
ssid[results[i].ssid_len] = '\0';
DHD_PNO(("ssid - %s bssid "MACDBG" ch %d rssi %d flags %d\n",
ssid, MAC2STRDBG(bssid->octet), results[i].channel,
results[i].rssi, results[i].flags));
}
} else if (pfn_result_v2->version == PFN_SCANRESULT_VERSION_V2) {
if ((pfn_result->count == 0) || (pfn_result->count > EVENT_MAX_NETCNT_V2)) {
DHD_ERROR(("%s event %d: wrong pfn v2 results count %d\n",
__FUNCTION__, event, pfn_result->count));
return NULL;
}
count = pfn_result_v2->count;
mem_needed = sizeof(dhd_epno_results_t) * count;
results = (dhd_epno_results_t *)MALLOC(dhd->osh, mem_needed);
if (!results) {
DHD_ERROR(("%s: Can't malloc %d bytes for results\n", __FUNCTION__,
mem_needed));
return NULL;
}
for (i = 0; i < count; i++) {
net_v2 = &pfn_result_v2->netinfo[i];
results[i].rssi = net_v2->RSSI;
results[i].channel = wf_channel2mhz(net_v2->pfnsubnet.channel,
(net_v2->pfnsubnet.channel <= CH_MAX_2G_CHANNEL ?
WF_CHAN_FACTOR_2_4_G : WF_CHAN_FACTOR_5_G));
results[i].flags = (event == WLC_E_PFN_NET_FOUND) ?
WL_PFN_SSID_EXT_FOUND: WL_PFN_SSID_EXT_LOST;
results[i].ssid_len = min(net_v2->pfnsubnet.SSID_len,
(uint8)DOT11_MAX_SSID_LEN);
bssid = &results[i].bssid;
memcpy(bssid, &net_v2->pfnsubnet.BSSID, ETHER_ADDR_LEN);
if (!net_v2->pfnsubnet.SSID_len) {
dhd_pno_idx_to_ssid(gscan_params, &results[i],
net_v2->pfnsubnet.u.index);
} else {
memcpy(results[i].ssid, net_v2->pfnsubnet.u.SSID,
results[i].ssid_len);
}
memcpy(ssid, results[i].ssid, results[i].ssid_len);
ssid[results[i].ssid_len] = '\0';
DHD_PNO(("ssid - %s bssid "MACDBG" ch %d rssi %d flags %d\n",
ssid, MAC2STRDBG(bssid->octet), results[i].channel,
results[i].rssi, results[i].flags));
}
} else {
DHD_ERROR(("%s event %d: Incorrect version %d , not supported\n",
__FUNCTION__, event, pfn_result->version));
return NULL;
}
}
*size = mem_needed;
return results;
}
void *
dhd_handle_hotlist_scan_evt(dhd_pub_t *dhd, const void *event_data,
int *send_evt_bytes, hotlist_type_t type, u32 *buf_len)
{
void *ptr = NULL;
dhd_pno_status_info_t *_pno_state = PNO_GET_PNOSTATE(dhd);
struct dhd_pno_gscan_params *gscan_params;
wl_pfn_scanresults_v1_t *results_v1 = (wl_pfn_scanresults_v1_t *)event_data;
wl_pfn_scanresults_v2_t *results_v2 = (wl_pfn_scanresults_v2_t *)event_data;
wifi_gscan_result_t *hotlist_found_array;
wl_pfn_net_info_v1_t *pnetinfo;
wl_pfn_net_info_v2_t *pnetinfo_v2;
gscan_results_cache_t *gscan_hotlist_cache;
u32 malloc_size = 0, i, total = 0;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0))
struct timespec64 tm_spec;
#else
struct timespec tm_spec;
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)) */
uint16 fwstatus;
uint16 fwcount;
/* Static asserts in _dhd_pno_get_for_batch() above guarantee the v1 and v2
* net_info and subnet_info structures are compatible in size and SSID offset,
* allowing v1 to be safely used in the code below except for lscanresults
* fields themselves (status, count, offset to netinfo).
*/
*buf_len = 0;
if (results_v1->version == PFN_SCANRESULTS_VERSION_V1) {
fwstatus = results_v1->status;
fwcount = results_v1->count;
pnetinfo = &results_v1->netinfo[0];
gscan_params = &(_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS].params_gscan);
if (!fwcount || (fwcount > EVENT_MAX_NETCNT_V1)) {
DHD_ERROR(("%s: wrong v1 fwcount:%d\n", __FUNCTION__, fwcount));
*send_evt_bytes = 0;
return ptr;
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0))
ktime_get_boottime_ts64(&tm_spec);
#else
get_monotonic_boottime(&tm_spec);
#endif
malloc_size = sizeof(gscan_results_cache_t) +
((fwcount - 1) * sizeof(wifi_gscan_result_t));
gscan_hotlist_cache = (gscan_results_cache_t *)MALLOC(dhd->osh, malloc_size);
if (!gscan_hotlist_cache) {
DHD_ERROR(("%s Cannot Malloc %d bytes!!\n", __FUNCTION__, malloc_size));
*send_evt_bytes = 0;
return ptr;
}
*buf_len = malloc_size;
if (type == HOTLIST_FOUND) {
gscan_hotlist_cache->next = gscan_params->gscan_hotlist_found;
gscan_params->gscan_hotlist_found = gscan_hotlist_cache;
DHD_PNO(("%s enter, FOUND results count %d\n", __FUNCTION__, fwcount));
} else {
gscan_hotlist_cache->next = gscan_params->gscan_hotlist_lost;
gscan_params->gscan_hotlist_lost = gscan_hotlist_cache;
DHD_PNO(("%s enter, LOST results count %d\n", __FUNCTION__, fwcount));
}
gscan_hotlist_cache->tot_count = fwcount;
gscan_hotlist_cache->tot_consumed = 0;
for (i = 0; i < fwcount; i++, pnetinfo++) {
hotlist_found_array = &gscan_hotlist_cache->results[i];
memset(hotlist_found_array, 0, sizeof(wifi_gscan_result_t));
hotlist_found_array->channel = wf_channel2mhz(pnetinfo->pfnsubnet.channel,
(pnetinfo->pfnsubnet.channel <= CH_MAX_2G_CHANNEL?
WF_CHAN_FACTOR_2_4_G : WF_CHAN_FACTOR_5_G));
hotlist_found_array->rssi = (int32) pnetinfo->RSSI;
hotlist_found_array->ts =
convert_fw_rel_time_to_systime(&tm_spec,
(pnetinfo->timestamp * 1000));
if (pnetinfo->pfnsubnet.SSID_len > DOT11_MAX_SSID_LEN) {
DHD_ERROR(("Invalid SSID length %d: trimming it to max\n",
pnetinfo->pfnsubnet.SSID_len));
pnetinfo->pfnsubnet.SSID_len = DOT11_MAX_SSID_LEN;
}
memcpy(hotlist_found_array->ssid, pnetinfo->pfnsubnet.SSID,
pnetinfo->pfnsubnet.SSID_len);
hotlist_found_array->ssid[pnetinfo->pfnsubnet.SSID_len] = '\0';
memcpy(&hotlist_found_array->macaddr, &pnetinfo->pfnsubnet.BSSID,
ETHER_ADDR_LEN);
DHD_PNO(("\t%s "MACDBG" rssi %d\n",
hotlist_found_array->ssid,
MAC2STRDBG(hotlist_found_array->macaddr.octet),
hotlist_found_array->rssi));
}
} else if (results_v2->version == PFN_SCANRESULTS_VERSION_V2) {
fwstatus = results_v2->status;
fwcount = results_v2->count;
pnetinfo_v2 = (wl_pfn_net_info_v2_t*)&results_v2->netinfo[0];
gscan_params = &(_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS].params_gscan);
if (!fwcount || (fwcount > EVENT_MAX_NETCNT_V2)) {
DHD_ERROR(("%s: wrong v2 fwcount:%d\n", __FUNCTION__, fwcount));
*send_evt_bytes = 0;
return ptr;
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0))
ktime_get_boottime_ts64(&tm_spec);
#else
get_monotonic_boottime(&tm_spec);
#endif
malloc_size = sizeof(gscan_results_cache_t) +
((fwcount - 1) * sizeof(wifi_gscan_result_t));
gscan_hotlist_cache =
(gscan_results_cache_t *)MALLOC(dhd->osh, malloc_size);
if (!gscan_hotlist_cache) {
DHD_ERROR(("%s Cannot Malloc %d bytes!!\n", __FUNCTION__, malloc_size));
*send_evt_bytes = 0;
return ptr;
}
*buf_len = malloc_size;
if (type == HOTLIST_FOUND) {
gscan_hotlist_cache->next = gscan_params->gscan_hotlist_found;
gscan_params->gscan_hotlist_found = gscan_hotlist_cache;
DHD_PNO(("%s enter, FOUND results count %d\n", __FUNCTION__, fwcount));
} else {
gscan_hotlist_cache->next = gscan_params->gscan_hotlist_lost;
gscan_params->gscan_hotlist_lost = gscan_hotlist_cache;
DHD_PNO(("%s enter, LOST results count %d\n", __FUNCTION__, fwcount));
}
gscan_hotlist_cache->tot_count = fwcount;
gscan_hotlist_cache->tot_consumed = 0;
gscan_hotlist_cache->scan_ch_bucket = results_v2->scan_ch_bucket;
for (i = 0; i < fwcount; i++, pnetinfo_v2++) {
hotlist_found_array = &gscan_hotlist_cache->results[i];
memset(hotlist_found_array, 0, sizeof(wifi_gscan_result_t));
hotlist_found_array->channel =
wf_channel2mhz(pnetinfo_v2->pfnsubnet.channel,
(pnetinfo_v2->pfnsubnet.channel <= CH_MAX_2G_CHANNEL?
WF_CHAN_FACTOR_2_4_G : WF_CHAN_FACTOR_5_G));
hotlist_found_array->rssi = (int32) pnetinfo_v2->RSSI;
hotlist_found_array->ts =
convert_fw_rel_time_to_systime(&tm_spec,
(pnetinfo_v2->timestamp * 1000));
if (pnetinfo_v2->pfnsubnet.SSID_len > DOT11_MAX_SSID_LEN) {
DHD_ERROR(("Invalid SSID length %d: trimming it to max\n",
pnetinfo_v2->pfnsubnet.SSID_len));
pnetinfo_v2->pfnsubnet.SSID_len = DOT11_MAX_SSID_LEN;
}
memcpy(hotlist_found_array->ssid, pnetinfo_v2->pfnsubnet.u.SSID,
pnetinfo_v2->pfnsubnet.SSID_len);
hotlist_found_array->ssid[pnetinfo_v2->pfnsubnet.SSID_len] = '\0';
memcpy(&hotlist_found_array->macaddr, &pnetinfo_v2->pfnsubnet.BSSID,
ETHER_ADDR_LEN);
DHD_PNO(("\t%s "MACDBG" rssi %d\n",
hotlist_found_array->ssid,
MAC2STRDBG(hotlist_found_array->macaddr.octet),
hotlist_found_array->rssi));
}
} else {
DHD_ERROR(("%s: event version %d not supported\n",
__FUNCTION__, results_v1->version));
*send_evt_bytes = 0;
return ptr;
}
if (fwstatus == PFN_COMPLETE) {
ptr = (void *) gscan_hotlist_cache;
while (gscan_hotlist_cache) {
total += gscan_hotlist_cache->tot_count;
gscan_hotlist_cache = gscan_hotlist_cache->next;
}
*send_evt_bytes = total * sizeof(wifi_gscan_result_t);
}
return ptr;
}
#endif /* GSCAN_SUPPORT */
int
dhd_pno_event_handler(dhd_pub_t *dhd, wl_event_msg_t *event, void *event_data)
{
int err = BCME_OK;
uint event_type;
dhd_pno_status_info_t *_pno_state;
NULL_CHECK(dhd, "dhd is NULL", err);
NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
_pno_state = PNO_GET_PNOSTATE(dhd);
if (!WLS_SUPPORTED(_pno_state)) {
DHD_ERROR(("%s : wifi location service is not supported\n", __FUNCTION__));
err = BCME_UNSUPPORTED;
goto exit;
}
event_type = ntoh32(event->event_type);
DHD_PNO(("%s enter : event_type :%d\n", __FUNCTION__, event_type));
switch (event_type) {
case WLC_E_PFN_BSSID_NET_FOUND:
case WLC_E_PFN_BSSID_NET_LOST:
/* TODO : need to implement event logic using generic netlink */
break;
case WLC_E_PFN_BEST_BATCHING:
#ifndef GSCAN_SUPPORT
{
struct dhd_pno_batch_params *params_batch;
params_batch = &_pno_state->pno_params_arr[INDEX_OF_BATCH_PARAMS].params_batch;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 8, 0))
if (!waitqueue_active(&_pno_state->get_batch_done.wait)) {
#else
if (!try_wait_for_completion(&_pno_state->get_batch_done)) {
#endif
DHD_PNO(("%s : WLC_E_PFN_BEST_BATCHING\n", __FUNCTION__));
params_batch->get_batch.buf = NULL;
params_batch->get_batch.bufsize = 0;
params_batch->get_batch.reason = PNO_STATUS_EVENT;
schedule_work(&_pno_state->work);
} else
DHD_PNO(("%s : WLC_E_PFN_BEST_BATCHING"
"will skip this event\n", __FUNCTION__));
break;
}
#else
break;
#endif /* !GSCAN_SUPPORT */
default:
DHD_ERROR(("unknown event : %d\n", event_type));
}
exit:
return err;
}
int dhd_pno_init(dhd_pub_t *dhd)
{
int err = BCME_OK;
dhd_pno_status_info_t *_pno_state;
char *buf = NULL;
NULL_CHECK(dhd, "dhd is NULL", err);
DHD_PNO(("%s enter\n", __FUNCTION__));
UNUSED_PARAMETER(_dhd_pno_suspend);
if (dhd->pno_state)
goto exit;
dhd->pno_state = MALLOC(dhd->osh, sizeof(dhd_pno_status_info_t));
NULL_CHECK(dhd->pno_state, "failed to create dhd_pno_state", err);
memset(dhd->pno_state, 0, sizeof(dhd_pno_status_info_t));
/* need to check whether current firmware support batching and hotlist scan */
_pno_state = PNO_GET_PNOSTATE(dhd);
_pno_state->wls_supported = TRUE;
_pno_state->dhd = dhd;
mutex_init(&_pno_state->pno_mutex);
INIT_WORK(&_pno_state->work, _dhd_pno_get_batch_handler);
init_completion(&_pno_state->get_batch_done);
#ifdef GSCAN_SUPPORT
init_waitqueue_head(&_pno_state->batch_get_wait);
#endif /* GSCAN_SUPPORT */
buf = MALLOC(dhd->osh, WLC_IOCTL_SMLEN);
if (!buf) {
DHD_ERROR((":%s buf alloc err.\n", __FUNCTION__));
return BCME_NOMEM;
}
err = dhd_iovar(dhd, 0, "pfnlbest", NULL, 0, buf, WLC_IOCTL_SMLEN,
FALSE);
if (err == BCME_UNSUPPORTED) {
_pno_state->wls_supported = FALSE;
DHD_INFO(("Current firmware doesn't support"
" Android Location Service\n"));
} else {
DHD_ERROR(("%s: Support Android Location Service\n",
__FUNCTION__));
}
exit:
MFREE(dhd->osh, buf, WLC_IOCTL_SMLEN);
return err;
}
int dhd_pno_deinit(dhd_pub_t *dhd)
{
int err = BCME_OK;
dhd_pno_status_info_t *_pno_state;
dhd_pno_params_t *_params;
NULL_CHECK(dhd, "dhd is NULL", err);
DHD_PNO(("%s enter\n", __FUNCTION__));
_pno_state = PNO_GET_PNOSTATE(dhd);
NULL_CHECK(_pno_state, "pno_state is NULL", err);
/* may need to free legacy ssid_list */
if (_pno_state->pno_mode & DHD_PNO_LEGACY_MODE) {
_params = &_pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS];
_dhd_pno_reinitialize_prof(dhd, _params, DHD_PNO_LEGACY_MODE);
}
#ifdef GSCAN_SUPPORT
if (_pno_state->pno_mode & DHD_PNO_GSCAN_MODE) {
_params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS];
mutex_lock(&_pno_state->pno_mutex);
dhd_pno_reset_cfg_gscan(dhd, _params, _pno_state, GSCAN_FLUSH_ALL_CFG);
mutex_unlock(&_pno_state->pno_mutex);
}
#endif /* GSCAN_SUPPORT */
if (_pno_state->pno_mode & DHD_PNO_BATCH_MODE) {
_params = &_pno_state->pno_params_arr[INDEX_OF_BATCH_PARAMS];
/* clear resource if the BATCH MODE is on */
_dhd_pno_reinitialize_prof(dhd, _params, DHD_PNO_BATCH_MODE);
}
cancel_work_sync(&_pno_state->work);
MFREE(dhd->osh, _pno_state, sizeof(dhd_pno_status_info_t));
dhd->pno_state = NULL;
return err;
}
#endif /* OEM_ANDROID */
#endif /* PNO_SUPPORT */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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