/* * Broadcom Dongle Host Driver (DHD) * Prefered Network Offload and Wi-Fi Location Service(WLS) code. * * Portions of this code are copyright (c) 2017 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. * * * <> * * $Id: dhd_pno.c 664799 2017-04-24 09:48:40Z $ */ #if defined(GSCAN_SUPPORT) && !defined(PNO_SUPPORT) #error "GSCAN needs PNO to be enabled!" #endif #ifdef PNO_SUPPORT #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef GSCAN_SUPPORT #include #endif /* GSCAN_SUPPORT */ #ifdef __BIG_ENDIAN #include #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 */ #define NULL_CHECK(p, s, err) \ do { \ if (!(p)) { \ printf("NULL POINTER (%s) : %s\n", __FUNCTION__, (s)); \ err = BCME_ERROR; \ return err; \ } \ } while (0) #define PNO_GET_PNOSTATE(dhd) ((dhd_pno_status_info_t *)dhd->pno_state) #define PNO_BESTNET_LEN 1024 #define PNO_ON 1 #define PNO_OFF 0 #define CHANNEL_2G_MAX 14 #define CHANNEL_5G_MAX 165 #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 static wlc_ssid_ext_t * dhd_pno_get_legacy_pno_ssid(dhd_pub_t *dhd, dhd_pno_status_info_t *pno_state); #ifdef GSCAN_SUPPORT static wl_pfn_gscan_channel_bucket_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 inline bool is_dfs(uint16 channel) { if (channel >= 52 && channel <= 64) /* class 2 */ return TRUE; else if (channel >= 100 && channel <= 140) /* class 4 */ return TRUE; else 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), 1); 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, 1); 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); } int dhd_pno_set_mac_oui(dhd_pub_t *dhd, uint8 *oui) { int err = BCME_OK; dhd_pno_status_info_t *_pno_state; if (!dhd || !dhd->pno_state) { DHD_ERROR(("NULL POINTER : %s\n", __FUNCTION__)); return BCME_ERROR; } _pno_state = PNO_GET_PNOSTATE(dhd); if (ETHER_ISMULTI(oui)) { DHD_ERROR(("Expected unicast OUI\n")); err = BCME_ERROR; } else { memcpy(_pno_state->pno_oui, oui, DOT11_OUI_LEN); DHD_PNO(("PNO mac oui to be used - %02x:%02x:%02x\n", _pno_state->pno_oui[0], _pno_state->pno_oui[1], _pno_state->pno_oui[2])); } return err; } #ifdef GSCAN_SUPPORT static uint64 convert_fw_rel_time_to_systime(uint32 fw_ts_ms) { struct timespec ts; get_monotonic_boottime(&ts); return ((uint64)(TIMESPEC_TO_US(ts)) - (uint64)(fw_ts_ms * 1000)); } 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, 1); if (err < 0) { DHD_ERROR(("%s : failed to execute pfncfg_gscan_param\n", __FUNCTION__)); goto exit; } exit: 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_set_mac_addr(dhd_pub_t *dhd, struct ether_addr *macaddr) { int err; wl_pfn_macaddr_cfg_t cfg; cfg.version = WL_PFN_MACADDR_CFG_VER; if (ETHER_ISNULLADDR(macaddr)) { cfg.flags = 0; } else { cfg.flags = (WL_PFN_MAC_OUI_ONLY_MASK | WL_PFN_SET_MAC_UNASSOC_MASK); } memcpy(&cfg.macaddr, macaddr, ETHER_ADDR_LEN); err = dhd_iovar(dhd, 0, "pfn_macaddr", (char *)&cfg, sizeof(cfg), 1); if (err < 0) { DHD_ERROR(("%s : failed to execute pfn_macaddr\n", __FUNCTION__)); } return err; } 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), 1); 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), 1); 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; struct ether_addr macaddr; 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); /* ADAPTIVE turned off */ pfn_param.flags &= ~(htod16(ENABLE << ENABLE_ADAPTSCAN_BIT)); pfn_param.repeat = 0; pfn_param.exp = 0; pfn_param.slow_freq = 0; if (_pno_state->pno_mode & DHD_PNO_LEGACY_MODE) { dhd_pno_status_info_t *_pno_state = PNO_GET_PNOSTATE(dhd); dhd_pno_params_t *_params; _params = &(_pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS]); pfn_param.scan_freq = htod32(MIN(pno_params->params_gscan.scan_fr, _params->params_legacy.scan_fr)); } 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; } } memset(&macaddr, 0, ETHER_ADDR_LEN); memcpy(&macaddr, _pno_state->pno_oui, DOT11_OUI_LEN); DHD_PNO(("Setting mac oui to FW - %02x:%02x:%02x\n", _pno_state->pno_oui[0], _pno_state->pno_oui[1], _pno_state->pno_oui[2])); err = dhd_pno_set_mac_addr(dhd, &macaddr); if (err < 0) { DHD_ERROR(("%s : failed to set pno mac address, error - %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), 1); 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", (char *)&_tmp, sizeof(_tmp), 0); if (err < 0) { DHD_ERROR(("%s : failed to get pfnmem\n", __FUNCTION__)); goto exit; } DHD_PNO((" returned mscan : %d, set bestn : %d\n", _tmp, pfn_param.bestn)); pfn_param.mscan = MIN(pfn_param.mscan, _tmp); } err = dhd_iovar(dhd, 0, "pfn_set", (char *)&pfn_param, sizeof(pfn_param), 1); 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, wlc_ssid_ext_t* ssids_list, int nssid) { int err = BCME_OK; int i = 0; wl_pfn_t pfn_element; NULL_CHECK(dhd, "dhd is NULL", err); if (nssid) { NULL_CHECK(ssids_list, "ssid list is NULL", err); } memset(&pfn_element, 0, sizeof(pfn_element)); { int j; for (j = 0; j < nssid; j++) { DHD_PNO(("%d: scan for %s size = %d hidden = %d\n", j, ssids_list[j].SSID, ssids_list[j].SSID_len, ssids_list[j].hidden)); } } /* Check for broadcast ssid */ for (i = 0; i < nssid; i++) { if (!ssids_list[i].SSID_len) { DHD_ERROR(("%d: Broadcast SSID is ilegal for PNO setting\n", i)); err = BCME_ERROR; goto exit; } } /* set all pfn ssid */ for (i = 0; i < nssid; i++) { pfn_element.infra = htod32(DOT11_BSSTYPE_INFRASTRUCTURE); pfn_element.auth = (DOT11_OPEN_SYSTEM); pfn_element.wpa_auth = htod32(WPA_AUTH_PFN_ANY); pfn_element.wsec = htod32(0); pfn_element.infra = htod32(1); if (ssids_list[i].hidden) { pfn_element.flags = htod32(ENABLE << WL_PFN_HIDDEN_BIT); } else { pfn_element.flags = 0; } memcpy((char *)pfn_element.ssid.SSID, ssids_list[i].SSID, ssids_list[i].SSID_len); pfn_element.ssid.SSID_len = ssids_list[i].SSID_len; err = dhd_iovar(dhd, 0, "pfn_add", (char *)&pfn_element, sizeof(pfn_element), 1); if (err < 0) { DHD_ERROR(("%s : failed to execute pfn_add\n", __FUNCTION__)); goto exit; } } exit: return err; } /* qsort compare function */ static int _dhd_pno_cmpfunc(const void *a, const void *b) { return (*(uint16*)a - *(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); } 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)); goto exit; } for (i = 0, j = 0; i < dtoh32(list->count) && i < *nchan; i++) { if (band == WLC_BAND_2G) { if (dtoh32(list->element[i]) > CHANNEL_2G_MAX) continue; } else if (band == WLC_BAND_5G) { if (dtoh32(list->element[i]) <= CHANNEL_2G_MAX) continue; if (skip_dfs && is_dfs(dtoh32(list->element[i]))) continue; } else if (band == WLC_BAND_AUTO) { if (skip_dfs || !is_dfs(dtoh32(list->element[i]))) continue; } else { /* All channels */ if (skip_dfs && is_dfs(dtoh32(list->element[i]))) continue; } if (dtoh32(list->element[i]) <= CHANNEL_5G_MAX) { d_chan_list[j++] = (uint16) dtoh32(list->element[i]); } else { err = BCME_BADCHAN; goto exit; } } *nchan = j; exit: 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 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 = sprintf(bp, "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 */ list_for_each_entry_safe(siter, snext, ¶ms_batch->get_batch.expired_scan_results_list, list) { 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\n", cnt - 1, phead->tot_cnt)); /* attribute of the scan */ if (phead->reason & PNO_STATUS_ABORT_MASK) { bp += nreadsize = sprintf(bp, "trunc\n"); nleftsize -= nreadsize; } list_for_each_entry_safe(iter, next, &phead->entry_list, list) { t_delta = jiffies_to_msecs(jiffies - iter->recorded_time); #ifdef PNO_DEBUG _base_bp = bp; memset(msg, 0, sizeof(msg)); #endif /* BSSID info */ bp += nreadsize = sprintf(bp, "bssid=%s\n", bcm_ether_ntoa((const struct ether_addr *)&iter->BSSID, eabuf)); nleftsize -= nreadsize; /* SSID */ bp += nreadsize = sprintf(bp, "ssid=%s\n", iter->SSID); nleftsize -= nreadsize; /* channel */ bp += nreadsize = sprintf(bp, "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 = sprintf(bp, "level=%d\n", iter->RSSI); nleftsize -= nreadsize; /* add the time consumed in Driver to the timestamp of firmware */ iter->timestamp += t_delta; bp += nreadsize = sprintf(bp, "age=%d\n", iter->timestamp); nleftsize -= nreadsize; /* RTT0 */ bp += nreadsize = sprintf(bp, "dist=%d\n", (iter->rtt0 == 0)? -1 : iter->rtt0); nleftsize -= nreadsize; /* RTT1 */ bp += nreadsize = sprintf(bp, "distSd=%d\n", (iter->rtt0 == 0)? -1 : iter->rtt1); nleftsize -= nreadsize; bp += nreadsize = sprintf(bp, "%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 } bp += nreadsize = sprintf(bp, "%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 */ if (list_empty(¶ms_batch->get_batch.expired_scan_results_list)) { params_batch->get_batch.batch_started = FALSE; bp += sprintf(bp, "%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__)); 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); } } 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); } 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 && nchan < WL_NUMCHANNELS; 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), 1); 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) { list_for_each_entry_safe(iter, next, ¶ms->params_legacy.ssid_list, list) { list_del(&iter->list); kfree(iter); } } 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) { list_for_each_entry_safe(iter, next, ¶ms->params_hotlist.bssid_list, list) { list_del(&iter->list); kfree(iter); } } 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, 1); if (err < 0) { DHD_ERROR(("%s : failed to execute pfn_cfg\n", __FUNCTION__)); goto exit; } exit: return err; } #ifdef GSCAN_SUPPORT static int _dhd_pno_add_significant_bssid(dhd_pub_t *dhd, wl_pfn_significant_bssid_t *p_pfn_significant_bssid, int nbssid) { int err = BCME_OK; NULL_CHECK(dhd, "dhd is NULL", err); if (!nbssid) { err = BCME_ERROR; goto exit; } NULL_CHECK(p_pfn_significant_bssid, "bssid list is NULL", err); err = dhd_iovar(dhd, 0, "pfn_add_swc_bssid", (char *)p_pfn_significant_bssid, sizeof(wl_pfn_significant_bssid_t) * nbssid, 1); if (err < 0) { DHD_ERROR(("%s : failed to execute pfn_significant_bssid %d\n", __FUNCTION__, err)); goto exit; } exit: return err; } #endif /* GSCAN_SUPPORT */ int dhd_pno_stop_for_ssid(dhd_pub_t *dhd) { int err = BCME_OK; uint32 mode = 0; dhd_pno_status_info_t *_pno_state; dhd_pno_params_t *_params; wl_pfn_bssid_t *p_pfn_bssid = NULL; 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__)); _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) 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 previous pno_mode */ _pno_state->pno_mode = mode; /* 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; dhd_pno_clean(dhd); /* 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 = kzalloc(sizeof(wl_pfn_bssid_t) * _params->params_hotlist.nbssid, GFP_KERNEL); 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 */ list_for_each_entry_safe(iter, next, &_params->params_hotlist.bssid_list, list) { memcpy(&p_pfn_bssid->macaddr, &iter->macaddr, ETHER_ADDR_LEN); p_pfn_bssid->flags = iter->flags; p_pfn_bssid++; } 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: kfree(p_pfn_bssid); 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 wlc_ssid_ext_t * dhd_pno_get_legacy_pno_ssid(dhd_pub_t *dhd, dhd_pno_status_info_t *pno_state) { int i; struct dhd_pno_ssid *iter, *next; dhd_pno_params_t *_params1 = &pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS]; wlc_ssid_ext_t *p_ssid_list; p_ssid_list = kzalloc(sizeof(wlc_ssid_ext_t) * _params1->params_legacy.nssid, GFP_KERNEL); if (p_ssid_list == NULL) { DHD_ERROR(("%s : failed to allocate wlc_ssid_ext_t array (count: %d)", __FUNCTION__, _params1->params_legacy.nssid)); pno_state->pno_mode &= ~DHD_PNO_LEGACY_MODE; goto exit; } i = 0; /* convert dhd_pno_ssid to wlc_ssid_ext_t */ list_for_each_entry_safe(iter, next, &_params1->params_legacy.ssid_list, list) { p_ssid_list[i].SSID_len = iter->SSID_len; p_ssid_list[i].hidden = iter->hidden; memcpy(p_ssid_list[i].SSID, iter->SSID, p_ssid_list[i].SSID_len); i++; } exit: return p_ssid_list; } static int dhd_pno_add_to_ssid_list(dhd_pno_params_t *params, wlc_ssid_ext_t *ssid_list, int nssid) { int ret = 0; 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; } _pno_ssid = kzalloc(sizeof(struct dhd_pno_ssid), GFP_KERNEL); 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; memcpy(_pno_ssid->SSID, ssid_list[i].SSID, _pno_ssid->SSID_len); list_add_tail(&_pno_ssid->list, ¶ms->params_legacy.ssid_list); } exit: 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_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; int mode = 0; NULL_CHECK(dhd, "dhd is NULL", err); NULL_CHECK(dhd->pno_state, "pno_state is NULL", err); _pno_state = PNO_GET_PNOSTATE(dhd); if (!dhd_support_sta_mode(dhd)) { err = BCME_BADOPTION; goto exit_no_clear; } DHD_PNO(("%s enter : scan_fr :%d, pno_repeat :%d," "pno_freq_expo_max: %d, nchan :%d\n", __FUNCTION__, scan_fr, pno_repeat, pno_freq_expo_max, nchan)); _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)); goto exit_no_clear; } } _pno_state->pno_mode |= DHD_PNO_LEGACY_MODE; 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)); goto exit_no_clear; } 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), TRUE); 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_no_clear; } /* 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_no_clear; } } 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_no_clear; } } } } _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; _params->params_legacy.nssid = nssid; INIT_LIST_HEAD(&_params->params_legacy.ssid_list); #ifdef GSCAN_SUPPORT /* dhd_pno_initiate_gscan_request will handle simultaneous Legacy PNO and GSCAN */ if (_pno_state->pno_mode & DHD_PNO_GSCAN_MODE) { if (dhd_pno_add_to_ssid_list(_params, ssid_list, nssid) < 0) { err = BCME_ERROR; 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 (dhd_pno_add_to_ssid_list(_params, ssid_list, nssid) < 0) { err = BCME_ERROR; 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); } exit_no_clear: /* 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; wlc_ssid_ext_t *p_ssid_list = NULL; 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 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")); } p_ssid_list = dhd_pno_get_legacy_pno_ssid(dhd, _pno_state); if (!p_ssid_list) { err = BCME_NOMEM; DHD_ERROR(("failed to get Legacy PNO SSID list\n")); goto exit; } if ((err = _dhd_pno_add_ssid(dhd, p_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; } if (p_ssid_list) kfree(p_ssid_list); return err; } #ifdef GSCAN_SUPPORT static void dhd_pno_reset_cfg_gscan(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) { list_for_each_entry_safe(iter, next, &_params->params_gscan.hotlist_bssid_list, list) { list_del(&iter->list); kfree(iter); } } _params->params_gscan.nbssid_hotlist = 0; DHD_PNO(("Flush Hotlist Config\n")); } if (flags & GSCAN_FLUSH_SIGNIFICANT_CFG) { dhd_pno_significant_bssid_t *iter, *next; if (_params->params_gscan.nbssid_significant_change > 0) { list_for_each_entry_safe(iter, next, &_params->params_gscan.significant_bssid_list, list) { list_del(&iter->list); kfree(iter); } } _params->params_gscan.nbssid_significant_change = 0; DHD_PNO(("Flush Significant Change Config\n")); } return; } void dhd_pno_lock_batch_results(dhd_pub_t *dhd) { dhd_pno_status_info_t *_pno_state; _pno_state = PNO_GET_PNOSTATE(dhd); mutex_lock(&_pno_state->pno_mutex); return; } 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; } void dhd_wait_batch_results_complete(dhd_pub_t *dhd) { dhd_pno_status_info_t *_pno_state; dhd_pno_params_t *_params; _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; int err; 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 (!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; } 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; if (!len) { DHD_ERROR(("%s: len is NULL\n", __FUNCTION__)); return ret; } switch (type) { case DHD_PNO_GET_CAPABILITIES: ptr = (dhd_pno_gscan_capabilities_t *) kmalloc(sizeof(dhd_pno_gscan_capabilities_t), GFP_KERNEL); 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 = 12; ptr->max_scan_buckets = GSCAN_MAX_CH_BUCKETS; ptr->max_ap_cache_per_scan = 16; ptr->max_rssi_sample_size = PFN_SWC_RSSI_WINDOW_MAX; ptr->max_scan_reporting_threshold = 100; ptr->max_hotlist_aps = PFN_HOTLIST_MAX_NUM_APS; ptr->max_significant_wifi_change_aps = PFN_SWC_MAX_NUM_APS; 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 *ptr, 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; ptr = (uint32 *) kmalloc(mem_needed, GFP_KERNEL); if (!ptr) { DHD_ERROR(("%s: Unable to malloc %d bytes\n", __FUNCTION__, mem_needed)); break; } for (i = 0; i < nchan; i++) { ptr[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 = ptr; *len = mem_needed; } } else { *len = 0; DHD_ERROR(("%s: info buffer is NULL\n", __FUNCTION__)); } break; default: DHD_ERROR(("%s: Unrecognized cmd type - %d\n", __FUNCTION__, type)); break; } return ret; } int dhd_pno_set_cfg_gscan(dhd_pub_t *dhd, dhd_pno_gscan_cmd_cfg_t type, void *buf, uint8 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); 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(_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 = kzalloc(sizeof(struct dhd_pno_bssid), GFP_KERNEL); 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_SIGNIFICANT_SCAN_CFG_ID: { gscan_swc_params_t *ptr = (gscan_swc_params_t *)buf; dhd_pno_significant_bssid_t *_pno_significant_change_bssid; wl_pfn_significant_bssid_t *significant_bssid_ptr; if (flush) { dhd_pno_reset_cfg_gscan(_params, _pno_state, GSCAN_FLUSH_SIGNIFICANT_CFG); } if (!ptr->nbssid) { break; } if (!_params->params_gscan.nbssid_significant_change) { INIT_LIST_HEAD(&_params->params_gscan.significant_bssid_list); } if ((_params->params_gscan.nbssid_significant_change + ptr->nbssid) > PFN_SWC_MAX_NUM_APS) { DHD_ERROR(("Excessive number of SWC APs programmed %d\n", (_params->params_gscan.nbssid_significant_change + ptr->nbssid))); err = BCME_RANGE; goto exit; } for (i = 0, significant_bssid_ptr = ptr->bssid_elem_list; i < ptr->nbssid; i++, significant_bssid_ptr++) { _pno_significant_change_bssid = kzalloc(sizeof(dhd_pno_significant_bssid_t), GFP_KERNEL); if (!_pno_significant_change_bssid) { DHD_ERROR(("SWC bssidptr is NULL, cannot kalloc %zd bytes", sizeof(dhd_pno_significant_bssid_t))); err = BCME_NOMEM; goto exit; } memcpy(&_pno_significant_change_bssid->BSSID, &significant_bssid_ptr->macaddr, ETHER_ADDR_LEN); _pno_significant_change_bssid->rssi_low_threshold = significant_bssid_ptr->rssi_low_threshold; _pno_significant_change_bssid->rssi_high_threshold = significant_bssid_ptr->rssi_high_threshold; list_add_tail(&_pno_significant_change_bssid->list, &_params->params_gscan.significant_bssid_list); } _params->params_gscan.swc_nbssid_threshold = ptr->swc_threshold; _params->params_gscan.swc_rssi_window_size = ptr->rssi_window; _params->params_gscan.lost_ap_window = ptr->lost_ap_window; _params->params_gscan.nbssid_significant_change += ptr->nbssid; break; } case DHD_PNO_SCAN_CFG_ID: { int i, k, valid = 0; uint16 band, min; 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)); min = ptr->channel_bucket[0].bucket_freq_multiple; 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; if (ptr->scan_fr == ptr->channel_bucket[i].bucket_freq_multiple) { valid = 1; } if (ptr->channel_bucket[i].bucket_freq_multiple < min) min = ptr->channel_bucket[i].bucket_freq_multiple; DHD_PNO(("band %d report_flag %d\n", ch_bucket[i].band, ch_bucket[i].report_flag)); } if (!valid) ptr->scan_fr = min; for (i = 0; i < ptr->nchannel_buckets; i++) { ch_bucket[i].bucket_freq_multiple = ch_bucket[i].bucket_freq_multiple/ptr->scan_fr; } _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; } 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, k; 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_channel_bucket_t *ch_bucket = NULL; wl_pfn_gscan_cfg_t *pfn_gscan_cfg_t = NULL; wl_pfn_significant_bssid_t *p_pfn_significant_bssid = NULL; wl_pfn_bssid_t *p_pfn_bssid = NULL; wlc_ssid_ext_t *pssid_list = NULL; dhd_pno_params_t *params_legacy; dhd_pno_params_t *_params; params_legacy = &_pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS]; _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; } /* Create channel list based on channel buckets */ if (!(ch_bucket = dhd_pno_gscan_create_channel_list(dhd, _pno_state, _chan_list, &tot_num_buckets, &num_buckets_to_fw))) { goto exit; } 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__)); goto exit; } /* restore the previous mode */ _pno_state->pno_mode = mode; } _pno_state->pno_mode |= DHD_PNO_GSCAN_MODE; if (_pno_state->pno_mode & DHD_PNO_LEGACY_MODE) { pssid_list = dhd_pno_get_legacy_pno_ssid(dhd, _pno_state); if (!pssid_list) { err = BCME_NOMEM; DHD_ERROR(("failed to get Legacy PNO SSID list\n")); goto exit; } if ((err = _dhd_pno_add_ssid(dhd, pssid_list, params_legacy->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_channel_bucket_t); pfn_gscan_cfg_t = (wl_pfn_gscan_cfg_t *) MALLOC(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; } 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; } if (gscan_params->nbssid_significant_change) { pfn_gscan_cfg_t->swc_nbssid_threshold = gscan_params->swc_nbssid_threshold; pfn_gscan_cfg_t->swc_rssi_window_size = gscan_params->swc_rssi_window_size; pfn_gscan_cfg_t->lost_ap_window = gscan_params->lost_ap_window; } else { pfn_gscan_cfg_t->swc_nbssid_threshold = 0; pfn_gscan_cfg_t->swc_rssi_window_size = 0; pfn_gscan_cfg_t->lost_ap_window = 0; } pfn_gscan_cfg_t->flags = (gscan_params->send_all_results_flag & GSCAN_SEND_ALL_RESULTS_MASK); pfn_gscan_cfg_t->count_of_channel_buckets = num_buckets_to_fw; for (i = 0, k = 0; i < tot_num_buckets; i++) { if (ch_bucket[i].bucket_end_index != CHANNEL_BUCKET_EMPTY_INDEX) { pfn_gscan_cfg_t->channel_bucket[k].bucket_end_index = ch_bucket[i].bucket_end_index; pfn_gscan_cfg_t->channel_bucket[k].bucket_freq_multiple = ch_bucket[i].bucket_freq_multiple; pfn_gscan_cfg_t->channel_bucket[k].report_flag = ch_bucket[i].report_flag; k++; } } 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; } if (gscan_params->nbssid_significant_change) { dhd_pno_significant_bssid_t *iter, *next; p_pfn_significant_bssid = kzalloc(sizeof(wl_pfn_significant_bssid_t) * gscan_params->nbssid_significant_change, GFP_KERNEL); if (p_pfn_significant_bssid == NULL) { DHD_ERROR(("%s : failed to allocate memory %zd\n", __FUNCTION__, sizeof(wl_pfn_significant_bssid_t) * gscan_params->nbssid_significant_change)); err = BCME_NOMEM; goto exit; } i = 0; /* convert dhd_pno_significant_bssid_t to wl_pfn_significant_bssid_t */ list_for_each_entry_safe(iter, next, &gscan_params->significant_bssid_list, list) { p_pfn_significant_bssid[i].rssi_low_threshold = iter->rssi_low_threshold; p_pfn_significant_bssid[i].rssi_high_threshold = iter->rssi_high_threshold; memcpy(&p_pfn_significant_bssid[i].macaddr, &iter->BSSID, ETHER_ADDR_LEN); i++; } DHD_PNO(("nbssid_significant_change %d \n", gscan_params->nbssid_significant_change)); err = _dhd_pno_add_significant_bssid(dhd, p_pfn_significant_bssid, gscan_params->nbssid_significant_change); if (err < 0) { DHD_ERROR(("%s : failed to call _dhd_pno_add_significant_bssid(err :%d)\n", __FUNCTION__, err)); goto exit; } } if (gscan_params->nbssid_hotlist) { struct dhd_pno_bssid *iter, *next; wl_pfn_bssid_t *ptr; p_pfn_bssid = (wl_pfn_bssid_t *)kzalloc(sizeof(wl_pfn_bssid_t) * gscan_params->nbssid_hotlist, GFP_KERNEL); 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)); list_for_each_entry_safe(iter, next, &gscan_params->hotlist_bssid_list, list) { memcpy(&ptr->macaddr, &iter->macaddr, ETHER_ADDR_LEN); 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; } } kfree(pssid_list); kfree(p_pfn_significant_bssid); kfree(p_pfn_bssid); 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_channel_bucket_t))); } return err; } static void dhd_pno_merge_gscan_pno_channels(dhd_pno_status_info_t *pno_state, uint16 *chan_list, uint8 *ch_scratch_pad, wl_pfn_gscan_channel_bucket_t *ch_bucket, uint32 *num_buckets_to_fw, int num_channels) { uint16 chan_buf[WL_NUMCHANNELS]; int i, j = 0, ch_bucket_idx = 0; dhd_pno_params_t *_params = &pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS]; dhd_pno_params_t *_params1 = &pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS]; uint16 *legacy_chan_list = _params1->params_legacy.chan_list; bool is_legacy_scan_freq_higher; uint8 report_flag = CH_BUCKET_REPORT_REGULAR; if (!_params1->params_legacy.scan_fr) _params1->params_legacy.scan_fr = PNO_SCAN_MIN_FW_SEC; is_legacy_scan_freq_higher = _params->params_gscan.scan_fr < _params1->params_legacy.scan_fr; /* Calculate new Legacy scan multiple of base scan_freq * The legacy PNO channel bucket is added at the end of the * channel bucket list. */ if (is_legacy_scan_freq_higher) { ch_bucket[_params->params_gscan.nchannel_buckets].bucket_freq_multiple = _params1->params_legacy.scan_fr/_params->params_gscan.scan_fr; } else { uint16 max = 0; /* Calculate new multiple of base scan_freq for gscan buckets */ ch_bucket[_params->params_gscan.nchannel_buckets].bucket_freq_multiple = 1; 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 /= _params1->params_legacy.scan_fr; if (max < ch_bucket[i].bucket_freq_multiple) max = ch_bucket[i].bucket_freq_multiple; } _params->params_gscan.max_ch_bucket_freq = max; } /* Off to remove duplicates!! * Find channels that are already being serviced by gscan before legacy bucket * These have to be removed from legacy bucket. * !!Assuming chan_list channels are validated list of channels!! * ch_scratch_pad is 1 at gscan bucket locations see dhd_pno_gscan_create_channel_list() */ for (i = 0; i < _params1->params_legacy.nchan; i++) ch_scratch_pad[legacy_chan_list[i]] += 2; ch_bucket_idx = 0; memcpy(chan_buf, chan_list, num_channels * sizeof(uint16)); /* Finally create channel list and bucket * At this point ch_scratch_pad can have 4 values: * 0 - Channel not present in either Gscan or Legacy PNO bucket * 1 - Channel present only in Gscan bucket * 2 - Channel present only in Legacy PNO bucket * 3 - Channel present in both Gscan and Legacy PNO buckets * Thus Gscan buckets can have values 1 or 3 and Legacy 2 or 3 * For channel buckets with scan_freq < legacy accept all * channels i.e. ch_scratch_pad = 1 and 3 * else accept only ch_scratch_pad = 1 and mark rejects as * ch_scratch_pad = 4 so that they go in legacy */ for (i = 0; i < _params->params_gscan.nchannel_buckets; i++) { if (ch_bucket[i].bucket_freq_multiple <= ch_bucket[_params->params_gscan.nchannel_buckets].bucket_freq_multiple) { for (; ch_bucket_idx <= ch_bucket[i].bucket_end_index; ch_bucket_idx++, j++) chan_list[j] = chan_buf[ch_bucket_idx]; ch_bucket[i].bucket_end_index = j - 1; } else { num_channels = 0; for (; ch_bucket_idx <= ch_bucket[i].bucket_end_index; ch_bucket_idx++) { if (ch_scratch_pad[chan_buf[ch_bucket_idx]] == 1) { chan_list[j] = chan_buf[ch_bucket_idx]; j++; num_channels++; } else { ch_scratch_pad[chan_buf[ch_bucket_idx]] = 4; /* If Gscan channel is merged off to legacy bucket and * if the gscan channel bucket has a report flag > 0 * use the same for legacy */ if (report_flag < ch_bucket[i].report_flag) report_flag = ch_bucket[i].report_flag; } } if (num_channels) { ch_bucket[i].bucket_end_index = j - 1; } else { ch_bucket[i].bucket_end_index = CHANNEL_BUCKET_EMPTY_INDEX; *num_buckets_to_fw = *num_buckets_to_fw - 1; } } } num_channels = 0; ch_bucket[_params->params_gscan.nchannel_buckets].report_flag = report_flag; /* Now add channels to the legacy scan bucket * ch_scratch_pad = 0 to 4 at this point, for legacy -> 2,3,4. 2 means exclusively * Legacy so add to bucket. 4 means it is a reject of gscan bucket and must * be added to Legacy bucket,reject 3 */ for (i = 0; i < _params1->params_legacy.nchan; i++) { if (ch_scratch_pad[legacy_chan_list[i]] != 3) { chan_list[j] = legacy_chan_list[i]; j++; num_channels++; } } if (num_channels) { ch_bucket[_params->params_gscan.nchannel_buckets].bucket_end_index = j - 1; } else { ch_bucket[_params->params_gscan.nchannel_buckets].bucket_end_index = CHANNEL_BUCKET_EMPTY_INDEX; *num_buckets_to_fw = *num_buckets_to_fw - 1; } return; } static wl_pfn_gscan_channel_bucket_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; uint16 *ptr = chan_list, max; uint8 *ch_scratch_pad; wl_pfn_gscan_channel_bucket_t *ch_bucket; dhd_pno_params_t *_params = &_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS]; bool is_pno_legacy_running = _pno_state->pno_mode & DHD_PNO_LEGACY_MODE; dhd_pno_gscan_channel_bucket_t *gscan_buckets = _params->params_gscan.channel_bucket; 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 = *num_buckets; ch_bucket = (wl_pfn_gscan_channel_bucket_t *) MALLOC(dhd->osh, ((*num_buckets) * sizeof(wl_pfn_gscan_channel_bucket_t))); if (!ch_bucket) { DHD_ERROR(("%s: failed to malloc memory of size %zd\n", __FUNCTION__, (*num_buckets) * sizeof(wl_pfn_gscan_channel_bucket_t))); *num_buckets_to_fw = *num_buckets = 0; return NULL; } max = gscan_buckets[0].bucket_freq_multiple; num_channels = 0; for (i = 0; i < _params->params_gscan.nchannel_buckets; i++) { if (!gscan_buckets[i].band) { num_channels += gscan_buckets[i].num_channels; memcpy(ptr, gscan_buckets[i].chan_list, gscan_buckets[i].num_channels * sizeof(uint16)); ptr = ptr + gscan_buckets[i].num_channels; } 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_channel_bucket_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].report_flag = gscan_buckets[i].report_flag; if (max < gscan_buckets[i].bucket_freq_multiple) max = gscan_buckets[i].bucket_freq_multiple; nchan = WL_NUMCHANNELS - num_channels; DHD_PNO(("end_idx %d freq_mult - %d\n", ch_bucket[i].bucket_end_index, ch_bucket[i].bucket_freq_multiple)); } ch_scratch_pad = (uint8 *) kzalloc(CHANNEL_5G_MAX, GFP_KERNEL); if (!ch_scratch_pad) { DHD_ERROR(("%s: failed to malloc memory of size %d\n", __FUNCTION__, CHANNEL_5G_MAX)); MFREE(dhd->osh, ch_bucket, ((*num_buckets) * sizeof(wl_pfn_gscan_channel_bucket_t))); *num_buckets_to_fw = *num_buckets = 0; return NULL; } /* Need to look for duplicates in gscan buckets if the framework programmed * the gscan buckets badly, for now return error if there are duplicates. * Plus as an added bonus, we get all channels in Gscan bucket * set to 1 for dhd_pno_merge_gscan_pno_channels() */ for (i = 0; i < num_channels; i++) { if (!ch_scratch_pad[chan_list[i]]) { ch_scratch_pad[chan_list[i]] = 1; } else { DHD_ERROR(("%s: Duplicate channel - %d programmed in channel bucket\n", __FUNCTION__, chan_list[i])); MFREE(dhd->osh, ch_bucket, ((*num_buckets) * sizeof(wl_pfn_gscan_channel_bucket_t))); *num_buckets_to_fw = *num_buckets = 0; kfree(ch_scratch_pad); return NULL; } } _params->params_gscan.max_ch_bucket_freq = max; /* Legacy PNO maybe running, which means we need to create a legacy PNO bucket * Plus need to remove duplicates as the legacy PNO chan_list may have common channels * If channel is to be scanned more frequently as per gscan requirements * remove from legacy PNO ch_bucket. Similarly, if legacy wants a channel scanned * more often, it is removed from the Gscan channel bucket. * In the end both are satisfied. */ if (is_pno_legacy_running) dhd_pno_merge_gscan_pno_channels(_pno_state, chan_list, ch_scratch_pad, ch_bucket, num_buckets_to_fw, num_channels); kfree(ch_scratch_pad); return ch_bucket; } static int dhd_pno_stop_for_gscan(dhd_pub_t *dhd) { int err = BCME_OK; int mode; wlc_ssid_ext_t *pssid_list = NULL; 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; } 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; pssid_list = dhd_pno_get_legacy_pno_ssid(dhd, _pno_state); if (!pssid_list) { err = BCME_NOMEM; DHD_ERROR(("failed to get Legacy PNO SSID list\n")); goto exit; } DHD_PNO(("Restarting Legacy PNO SSID scan...\n")); memcpy(chan_list, params_legacy->chan_list, (params_legacy->nchan * sizeof(uint16))); err = dhd_pno_set_for_ssid(dhd, pssid_list, params_legacy->nssid, params_legacy->scan_fr, params_legacy->pno_repeat, params_legacy->pno_freq_expo_max, chan_list, params_legacy->nchan); if (err < 0) { _pno_state->pno_mode &= ~DHD_PNO_LEGACY_MODE; DHD_ERROR(("%s : failed to restart legacy PNO scan(err: %d)\n", __FUNCTION__, err)); goto exit; } } exit: kfree(pssid_list); 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(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.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; } 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; kfree(iter); 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_t *plnetinfo; struct dhd_pno_gscan_params *gscan_params; wl_pfn_lscanresults_t *plbestnet = 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, scan_id = 0; 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; } 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 = (wl_pfn_lscanresults_t *)MALLOC(dhd->osh, PNO_BESTNET_LEN); mutex_lock(&_pno_state->pno_mutex); iter = gscan_params->gscan_batch_cache; /* If a cache has not been consumed , just delete it */ while (iter) { iter->tot_consumed = iter->tot_count; iter = iter->next; } dhd_gscan_batch_cache_cleanup(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 */ plbestnet->status = PFN_INCOMPLETE; tail = gscan_params->gscan_batch_cache; while (plbestnet->status != PFN_COMPLETE) { memset(plbestnet, 0, PNO_BESTNET_LEN); err = dhd_iovar(dhd, 0, "pfnlbest", (char *)plbestnet, PNO_BESTNET_LEN, 0); if (err < 0) { DHD_ERROR(("%s : Cannot get all the batch results, err :%d\n", __FUNCTION__, err)); goto exit_mutex_unlock; } DHD_PNO(("ver %d, status : %d, count %d\n", plbestnet->version, plbestnet->status, plbestnet->count)); if (plbestnet->version != PFN_SCANRESULT_VERSION) { err = BCME_VERSION; DHD_ERROR(("bestnet version(%d) is mismatch with Driver version(%d)\n", plbestnet->version, PFN_SCANRESULT_VERSION)); goto exit_mutex_unlock; } num_scans_in_cur_iter = 0; timestamp = plbestnet->netinfo[0].timestamp; /* find out how many scans' results did we get in this batch of FW results */ for (i = 0, count = 0; i < plbestnet->count; i++, count++) { plnetinfo = &plbestnet->netinfo[i]; /* 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 = plbestnet->count; 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; } 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)); plnetinfo = &plbestnet->netinfo[0]; for (i = 0; i < num_scans_in_cur_iter; i++) { iter = (gscan_results_cache_t *) kzalloc(((nAPs_per_scan[i] - 1) * sizeof(wifi_gscan_result_t)) + sizeof(gscan_results_cache_t), GFP_KERNEL); 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 = ++scan_id; } else { iter->scan_id = scan_id; } DHD_PNO(("scan_id %d tot_count %d\n", scan_id, nAPs_per_scan[i])); iter->tot_count = nAPs_per_scan[i]; iter->tot_consumed = 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; /* Info not available & not expected */ result->beacon_period = 0; result->capability = 0; result->ie_length = 0; result->rtt = (uint64) plnetinfo->rtt0; result->rtt_sd = (uint64) plnetinfo->rtt1; result->ts = convert_fw_rel_time_to_systime(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: %02x:%02x:%02x:%02x:%02x:%02x\n", result->macaddr.octet[0], result->macaddr.octet[1], result->macaddr.octet[2], result->macaddr.octet[3], result->macaddr.octet[4], result->macaddr.octet[5])); 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)); } } } 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); } if (plbestnet) { MFREE(dhd->osh, plbestnet, PNO_BESTNET_LEN); } DHD_PNO(("Batch retrieval done!\n")); return err; } #endif /* GSCAN_SUPPORT */ 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_t *plbestnet = NULL; wl_pfn_lnet_info_t *plnetinfo; 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; 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_no_unlock; } 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_no_unlock; } #ifdef GSCAN_SUPPORT if (!(_pno_state->pno_mode & (DHD_PNO_BATCH_MODE | DHD_PNO_GSCAN_MODE))) { #else if (!(_pno_state->pno_mode & DHD_PNO_BATCH_MODE)) { #endif /* GSCAN_SUPPORT */ 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 */ list_for_each_entry_safe(siter, snext, &_params->params_batch.get_batch.scan_results_list, list) { 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 = (wl_pfn_lscanresults_t *)MALLOC(dhd->osh, PNO_BESTNET_LEN); NULL_CHECK(plbestnet, "failed to allocate buffer for bestnet", err); DHD_PNO(("%s enter\n", __FUNCTION__)); memset(plbestnet, 0, PNO_BESTNET_LEN); while (plbestnet->status != PFN_COMPLETE) { memset(plbestnet, 0, PNO_BESTNET_LEN); err = dhd_iovar(dhd, 0, "pfnlbest", (char *)plbestnet, PNO_BESTNET_LEN, 0); 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; } } DHD_PNO(("ver %d, status : %d, count %d\n", plbestnet->version, plbestnet->status, plbestnet->count)); if (plbestnet->version != PFN_SCANRESULT_VERSION) { err = BCME_VERSION; DHD_ERROR(("bestnet version(%d) is mismatch with Driver version(%d)\n", plbestnet->version, PFN_SCANRESULT_VERSION)); goto exit; } plnetinfo = plbestnet->netinfo; for (i = 0; i < plbestnet->count; 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); pbestnet_entry->recorded_time = jiffies; /* record the current time */ /* 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; } } /* fills the best network info */ 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: %02x:%02x:%02x:%02x:%02x:%02x\n", plnetinfo->pfnsubnet.BSSID.octet[0], plnetinfo->pfnsubnet.BSSID.octet[1], plnetinfo->pfnsubnet.BSSID.octet[2], plnetinfo->pfnsubnet.BSSID.octet[3], plnetinfo->pfnsubnet.BSSID.octet[4], plnetinfo->pfnsubnet.BSSID.octet[5])); 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++; } } 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 */ list_for_each_entry_safe(siter, snext, &_params->params_batch.get_batch.scan_results_list, list) { 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) MFREE(dhd->osh, plbestnet, 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 IS_ENABLED(CONFIG_PREEMPT_RT_FULL) if (swait_active(&_pno_state->get_batch_done.wait)) #else #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 57) if (waitqueue_active((struct wait_queue_head *)&_pno_state->get_batch_done.wait)) #else if (waitqueue_active(&_pno_state->get_batch_done.wait)) #endif #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__)); _pno_state = container_of(work, struct dhd_pno_status_info, work); dhd = _pno_state->dhd; if (dhd == NULL) { DHD_ERROR(("%s : dhd is NULL\n", __FUNCTION__)); return; } #ifdef GSCAN_SUPPORT if (_pno_state->pno_mode & DHD_PNO_GSCAN_MODE) { _dhd_pno_get_gscan_batch_from_fw(dhd); return; } else #endif /* GSCAN_SUPPORT */ { 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 { 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 += sprintf(pbuf, "scancount=%d\n", 0); sprintf(pbuf, "%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 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; wlc_ssid_ext_t *p_ssid_list = 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 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; dhd_pno_clean(dhd); _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); p_ssid_list = dhd_pno_get_legacy_pno_ssid(dhd, _pno_state); if (!p_ssid_list) { err = BCME_NOMEM; DHD_ERROR(("failed to get Legacy PNO SSID list\n")); goto exit; } err = dhd_pno_set_for_ssid(dhd, p_ssid_list, _params_legacy->nssid, _params_legacy->scan_fr, _params_legacy->pno_repeat, _params_legacy->pno_freq_expo_max, _params_legacy->chan_list, _params_legacy->nchan); if (err < 0) { _pno_state->pno_mode &= ~DHD_PNO_LEGACY_MODE; 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 = kzalloc(sizeof(wl_pfn_bssid_t) * _params->params_hotlist.nbssid, GFP_KERNEL); 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 */ list_for_each_entry_safe(iter, next, &_params->params_hotlist.bssid_list, list) { 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); kfree(p_ssid_list); kfree(p_pfn_bssid); 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 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 = kzalloc(sizeof(struct dhd_pno_bssid), GFP_KERNEL); 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; wlc_ssid_ext_t *p_ssid_list = NULL; 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); p_ssid_list = dhd_pno_get_legacy_pno_ssid(dhd, _pno_state); if (!p_ssid_list) { err = BCME_NOMEM; DHD_ERROR(("failed to get Legacy PNO SSID list\n")); goto exit; } err = dhd_pno_set_for_ssid(dhd, p_ssid_list, _params_legacy->nssid, _params_legacy->scan_fr, _params_legacy->pno_repeat, _params_legacy->pno_freq_expo_max, _params_legacy->chan_list, _params_legacy->nchan); if (err < 0) { _pno_state->pno_mode &= ~DHD_PNO_LEGACY_MODE; 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: kfree(p_ssid_list); 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; _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; 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; } /* Handle Significant WiFi Change (SWC) event from FW * Send event to HAL when all results arrive from FW */ void * dhd_handle_swc_evt(dhd_pub_t *dhd, const void *event_data, int *send_evt_bytes) { void *ptr = NULL; dhd_pno_status_info_t *_pno_state = PNO_GET_PNOSTATE(dhd); struct dhd_pno_gscan_params *gscan_params; struct dhd_pno_swc_evt_param *params; wl_pfn_swc_results_t *results = (wl_pfn_swc_results_t *)event_data; wl_pfn_significant_net_t *change_array; int i; gscan_params = &(_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS].params_gscan); params = &(gscan_params->param_significant); if (!results->total_count) { *send_evt_bytes = 0; return ptr; } if (!params->results_rxed_so_far) { if (!params->change_array) { params->change_array = (wl_pfn_significant_net_t *) kmalloc(sizeof(wl_pfn_significant_net_t) * results->total_count, GFP_KERNEL); if (!params->change_array) { DHD_ERROR(("%s Cannot Malloc %zd bytes!!\n", __FUNCTION__, sizeof(wl_pfn_significant_net_t) * results->total_count)); *send_evt_bytes = 0; return ptr; } } else { DHD_ERROR(("RX'ed WLC_E_PFN_SWC evt from FW, previous evt not complete!!")); *send_evt_bytes = 0; return ptr; } } DHD_PNO(("%s: pkt_count %d total_count %d\n", __FUNCTION__, results->pkt_count, results->total_count)); for (i = 0; i < results->pkt_count; i++) { DHD_PNO(("\t %02x:%02x:%02x:%02x:%02x:%02x\n", results->list[i].BSSID.octet[0], results->list[i].BSSID.octet[1], results->list[i].BSSID.octet[2], results->list[i].BSSID.octet[3], results->list[i].BSSID.octet[4], results->list[i].BSSID.octet[5])); } change_array = ¶ms->change_array[params->results_rxed_so_far]; if ((params->results_rxed_so_far + results->pkt_count) <= results->total_count) { memcpy(change_array, results->list, sizeof(wl_pfn_significant_net_t) * results->pkt_count); params->results_rxed_so_far += results->pkt_count; } else { /* In case of spurious event or invalid data send hang event */ dhd->hang_reason = HANG_REASON_INVALID_EVENT_OR_DATA; dhd_os_send_hang_message(dhd); } if (params->results_rxed_so_far == results->total_count) { params->results_rxed_so_far = 0; *send_evt_bytes = sizeof(wl_pfn_significant_net_t) * results->total_count; /* Pack up change buffer to send up and reset * results_rxed_so_far, after its done. */ ptr = (void *) params->change_array; /* expecting the callee to free this mem chunk */ params->change_array = NULL; } else { *send_evt_bytes = 0; } return ptr; } 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; kfree(iter); iter = tmp; } return; } void * dhd_process_full_gscan_result(dhd_pub_t *dhd, const void *data, int *size) { wl_bss_info_t *bi = NULL; wl_gscan_result_t *gscan_result; wifi_gscan_result_t *result = NULL; u32 bi_length = 0; uint8 channel; uint32 mem_needed; struct timespec ts; *size = 0; gscan_result = (wl_gscan_result_t *)data; if (!gscan_result) { DHD_ERROR(("Invalid gscan result (NULL pointer)\n")); goto exit; } if (!gscan_result->bss_info) { DHD_ERROR(("Invalid gscan bss info (NULL pointer)\n")); 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; } if (bi->SSID_len > DOT11_MAX_SSID_LEN) { DHD_ERROR(("Invalid SSID length %d: trimming it to max\n", bi->SSID_len)); bi->SSID_len = DOT11_MAX_SSID_LEN; } mem_needed = OFFSETOF(wifi_gscan_result_t, ie_data) + bi->ie_length; result = kmalloc(mem_needed, GFP_KERNEL); if (!result) { DHD_ERROR(("%s Cannot malloc scan result buffer %d bytes\n", __FUNCTION__, mem_needed)); goto exit; } memcpy(result->ssid, bi->SSID, bi->SSID_len); result->ssid[bi->SSID_len] = '\0'; channel = wf_chspec_ctlchan(bi->chanspec); result->channel = wf_channel2mhz(channel, (channel <= CH_MAX_2G_CHANNEL? WF_CHAN_FACTOR_2_4_G : WF_CHAN_FACTOR_5_G)); result->rssi = (int32) bi->RSSI; result->rtt = 0; result->rtt_sd = 0; get_monotonic_boottime(&ts); result->ts = (uint64) TIMESPEC_TO_US(ts); result->beacon_period = dtoh16(bi->beacon_period); result->capability = dtoh16(bi->capability); result->ie_length = dtoh32(bi->ie_length); memcpy(&result->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_handle_hotlist_scan_evt(dhd_pub_t *dhd, const void *event_data, int *send_evt_bytes, hotlist_type_t type) { void *ptr = NULL; dhd_pno_status_info_t *_pno_state = PNO_GET_PNOSTATE(dhd); struct dhd_pno_gscan_params *gscan_params; wl_pfn_scanresults_t *results = (wl_pfn_scanresults_t *)event_data; wifi_gscan_result_t *hotlist_found_array; wl_pfn_net_info_t *plnetinfo; gscan_results_cache_t *gscan_hotlist_cache; int malloc_size = 0, i, total = 0; gscan_params = &(_pno_state->pno_params_arr[INDEX_OF_GSCAN_PARAMS].params_gscan); if (!results->count) { *send_evt_bytes = 0; return ptr; } malloc_size = sizeof(gscan_results_cache_t) + ((results->count - 1) * sizeof(wifi_gscan_result_t)); gscan_hotlist_cache = (gscan_results_cache_t *) kmalloc(malloc_size, GFP_KERNEL); if (!gscan_hotlist_cache) { DHD_ERROR(("%s Cannot Malloc %d bytes!!\n", __FUNCTION__, malloc_size)); *send_evt_bytes = 0; return ptr; } 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__, results->count)); } 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__, results->count)); } gscan_hotlist_cache->tot_count = results->count; gscan_hotlist_cache->tot_consumed = 0; plnetinfo = results->netinfo; for (i = 0; i < results->count; i++, plnetinfo++) { hotlist_found_array = &gscan_hotlist_cache->results[i]; hotlist_found_array->channel = wf_channel2mhz(plnetinfo->pfnsubnet.channel, (plnetinfo->pfnsubnet.channel <= CH_MAX_2G_CHANNEL? WF_CHAN_FACTOR_2_4_G : WF_CHAN_FACTOR_5_G)); hotlist_found_array->rssi = (int32) plnetinfo->RSSI; /* Info not available & not expected */ hotlist_found_array->beacon_period = 0; hotlist_found_array->capability = 0; hotlist_found_array->ie_length = 0; hotlist_found_array->ts = convert_fw_rel_time_to_systime(plnetinfo->timestamp); if (plnetinfo->pfnsubnet.SSID_len > DOT11_MAX_SSID_LEN) { DHD_ERROR(("Invalid SSID length %d: trimming it to max\n", plnetinfo->pfnsubnet.SSID_len)); plnetinfo->pfnsubnet.SSID_len = DOT11_MAX_SSID_LEN; } memcpy(hotlist_found_array->ssid, plnetinfo->pfnsubnet.SSID, plnetinfo->pfnsubnet.SSID_len); hotlist_found_array->ssid[plnetinfo->pfnsubnet.SSID_len] = '\0'; memcpy(&hotlist_found_array->macaddr, &plnetinfo->pfnsubnet.BSSID, ETHER_ADDR_LEN); DHD_PNO(("\t%s %02x:%02x:%02x:%02x:%02x:%02x rssi %d\n", hotlist_found_array->ssid, hotlist_found_array->macaddr.octet[0], hotlist_found_array->macaddr.octet[1], hotlist_found_array->macaddr.octet[2], hotlist_found_array->macaddr.octet[3], hotlist_found_array->macaddr.octet[4], hotlist_found_array->macaddr.octet[5], hotlist_found_array->rssi)); } if (results->status == 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 IS_ENABLED(CONFIG_PREEMPT_RT_FULL) if (!swait_active(&_pno_state->get_batch_done.wait)) { #else #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 57) if (!waitqueue_active((struct wait_queue_head *)&_pno_state->get_batch_done.wait)) { #else if (!waitqueue_active(&_pno_state->get_batch_done.wait)) { #endif #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; 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 */ err = dhd_iovar(dhd, 0, "pfnlbest", NULL, 0, 0); if (err == BCME_UNSUPPORTED) { _pno_state->wls_supported = FALSE; DHD_INFO(("Current firmware doesn't support" " Android Location Service\n")); } else { DHD_INFO(("%s: Support Android Location Service\n", __FUNCTION__)); } exit: 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(_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 /* PNO_SUPPORT */