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path: root/drivers/net/wireless/bcmdhd/dhd_pno.c
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Diffstat (limited to 'drivers/net/wireless/bcmdhd/dhd_pno.c')
-rw-r--r--drivers/net/wireless/bcmdhd/dhd_pno.c1892
1 files changed, 1892 insertions, 0 deletions
diff --git a/drivers/net/wireless/bcmdhd/dhd_pno.c b/drivers/net/wireless/bcmdhd/dhd_pno.c
new file mode 100644
index 0000000..8c96f6b
--- /dev/null
+++ b/drivers/net/wireless/bcmdhd/dhd_pno.c
@@ -0,0 +1,1892 @@
+/*
+ * Broadcom Dongle Host Driver (DHD)
+ * Prefered Network Offload and Wi-Fi Location Service(WLS) code.
+ *
+ * Copyright (C) 1999-2014, 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.
+ *
+ * $Id: dhd_pno.c 423669 2013-09-18 13:01:55Z yangj$
+ */
+#ifdef PNO_SUPPORT
+#include <typedefs.h>
+#include <osl.h>
+
+#include <epivers.h>
+#include <bcmutils.h>
+
+#include <bcmendian.h>
+#include <linuxver.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/sort.h>
+#include <dngl_stats.h>
+#include <wlioctl.h>
+
+#include <proto/bcmevent.h>
+#include <dhd.h>
+#include <dhd_pno.h>
+#include <dhd_dbg.h>
+
+#ifdef __BIG_ENDIAN
+#include <bcmendian.h>
+#define htod32(i) (bcmswap32(i))
+#define htod16(i) (bcmswap16(i))
+#define dtoh32(i) (bcmswap32(i))
+#define dtoh16(i) (bcmswap16(i))
+#define htodchanspec(i) htod16(i)
+#define dtohchanspec(i) dtoh16(i)
+#else
+#define htod32(i) (i)
+#define htod16(i) (i)
+#define dtoh32(i) (i)
+#define dtoh16(i) (i)
+#define htodchanspec(i) (i)
+#define dtohchanspec(i) (i)
+#endif /* IL_BIGENDINA */
+
+#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 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 ENTRY_OVERHEAD strlen("bssid=\nssid=\nfreq=\nlevel=\nage=\ndist=\ndistSd=\n====")
+#define TIME_MIN_DIFF 5
+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;
+}
+
+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, NULL, 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\n", __FUNCTION__));
+ goto exit;
+ }
+ _pno_state->pno_status = (enable)?
+ DHD_PNO_ENABLED : DHD_PNO_DISABLED;
+ if (!enable)
+ _pno_state->pno_mode = DHD_PNO_NONE_MODE;
+
+ DHD_PNO(("%s set pno as %s\n",
+ __FUNCTION__, enable ? "Enable" : "Disable"));
+exit:
+ return err;
+}
+
+static int
+_dhd_pno_set(dhd_pub_t *dhd, const dhd_pno_params_t *pno_params, dhd_pno_mode_t mode)
+{
+ int err = BCME_OK;
+ wl_pfn_param_t pfn_param;
+ dhd_pno_params_t *_params;
+ dhd_pno_status_info_t *_pno_state;
+ bool combined_scan = FALSE;
+ DHD_PNO(("%s enter\n", __FUNCTION__));
+
+ NULL_CHECK(dhd, "dhd is NULL", err);
+ NULL_CHECK(dhd->pno_state, "pno_state is NULL", err);
+ _pno_state = PNO_GET_PNOSTATE(dhd);
+
+ memset(&pfn_param, 0, sizeof(pfn_param));
+
+ /* set pfn parameters */
+ pfn_param.version = htod32(PFN_VERSION);
+ pfn_param.flags = ((PFN_LIST_ORDER << SORT_CRITERIA_BIT) |
+ (ENABLE << IMMEDIATE_SCAN_BIT) | (ENABLE << REPORT_SEPERATELY_BIT));
+ if (mode == DHD_PNO_LEGACY_MODE) {
+ /* check and set extra pno params */
+ if ((pno_params->params_legacy.pno_repeat != 0) ||
+ (pno_params->params_legacy.pno_freq_expo_max != 0)) {
+ pfn_param.flags |= htod16(ENABLE << ENABLE_ADAPTSCAN_BIT);
+ pfn_param.repeat = (uchar) (pno_params->params_legacy.pno_repeat);
+ pfn_param.exp = (uchar) (pno_params->params_legacy.pno_freq_expo_max);
+ }
+ /* set up pno scan fr */
+ if (pno_params->params_legacy.scan_fr != 0)
+ pfn_param.scan_freq = htod32(pno_params->params_legacy.scan_fr);
+ if (_pno_state->pno_mode & DHD_PNO_BATCH_MODE) {
+ DHD_PNO(("will enable combined scan with BATCHIG SCAN MODE\n"));
+ mode |= DHD_PNO_BATCH_MODE;
+ combined_scan = TRUE;
+ } else if (_pno_state->pno_mode & DHD_PNO_HOTLIST_MODE) {
+ DHD_PNO(("will enable combined scan with HOTLIST SCAN MODE\n"));
+ mode |= DHD_PNO_HOTLIST_MODE;
+ combined_scan = TRUE;
+ }
+ }
+ 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(30);
+ /* 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;
+ }
+ }
+ }
+ 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;
+ }
+ if (mode == DHD_PNO_BATCH_MODE) {
+ 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\n", __FUNCTION__));
+ 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_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\n", j,
+ ssids_list[j].SSID, ssids_list[j].SSID_len));
+ }
+ }
+ /* 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);
+ pfn_element.flags = htod32(ENABLE << WL_PFN_HIDDEN_BIT);
+ 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 { /* All channels */
+ if (skip_dfs && is_dfs(dtoh32(list->element[i])))
+ continue;
+ }
+ d_chan_list[j++] = dtoh32(list->element[i]);
+ }
+ *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,
+ &params_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<loop : %d, apcount %d>\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(&params_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,
+ &params->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,
+ &params->params_batch.get_batch.scan_results_list, FALSE);
+ _dhd_pno_clear_all_batch_results(dhd,
+ &params->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(&params->params_batch.get_batch.scan_results_list);
+ INIT_LIST_HEAD(&params->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,
+ &params->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;
+}
+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_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;
+ /* 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:
+ 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));
+}
+
+int
+dhd_pno_set_for_ssid(dhd_pub_t *dhd, wlc_ssid_t* ssid_list, int nssid,
+ uint16 scan_fr, int pno_repeat, int pno_freq_expo_max, uint16 *channel_list, int nchan)
+{
+ struct dhd_pno_ssid *_pno_ssid;
+ 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;
+ }
+ 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 (_pno_state->pno_mode & DHD_PNO_LEGACY_MODE) {
+ 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;
+ }
+ }
+ _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;
+ }
+ memset(_chan_list, 0, sizeof(_chan_list));
+ tot_nchan = nchan;
+ if (tot_nchan > 0 && channel_list) {
+ for (i = 0; i < nchan; i++)
+ _params->params_legacy.chan_list[i] = _chan_list[i] = channel_list[i];
+ }
+ if (_pno_state->pno_mode & (DHD_PNO_BATCH_MODE | DHD_PNO_HOTLIST_MODE)) {
+ DHD_PNO(("BATCH SCAN is on progress in firmware\n"));
+ /* retrieve the batching data from firmware into host */
+ dhd_pno_get_for_batch(dhd, NULL, 0, PNO_STATUS_DISABLE);
+ /* store current pno_mode before disabling pno */
+ mode = _pno_state->pno_mode;
+ err = _dhd_pno_enable(dhd, PNO_OFF);
+ if (err < 0) {
+ DHD_ERROR(("%s : failed to disable PNO\n", __FUNCTION__));
+ goto exit;
+ }
+ /* restore the previous mode */
+ _pno_state->pno_mode = mode;
+ /* use superset of channel list between two mode */
+ if (_pno_state->pno_mode & DHD_PNO_BATCH_MODE) {
+ _params2 = &(_pno_state->pno_params_arr[INDEX_OF_BATCH_PARAMS]);
+ if (_params2->params_batch.nchan > 0 && nchan > 0) {
+ err = _dhd_pno_chan_merge(_chan_list, &tot_nchan,
+ &_params2->params_batch.chan_list[0],
+ _params2->params_batch.nchan,
+ &channel_list[0], nchan);
+ if (err < 0) {
+ DHD_ERROR(("%s : failed to merge channel list"
+ " between legacy and batch\n",
+ __FUNCTION__));
+ goto exit;
+ }
+ } else {
+ DHD_PNO(("superset channel will use"
+ " all channels in firmware\n"));
+ }
+ } else if (_pno_state->pno_mode & DHD_PNO_HOTLIST_MODE) {
+ _params2 = &(_pno_state->pno_params_arr[INDEX_OF_HOTLIST_PARAMS]);
+ if (_params2->params_hotlist.nchan > 0 && nchan > 0) {
+ err = _dhd_pno_chan_merge(_chan_list, &tot_nchan,
+ &_params2->params_hotlist.chan_list[0],
+ _params2->params_hotlist.nchan,
+ &channel_list[0], nchan);
+ if (err < 0) {
+ DHD_ERROR(("%s : failed to merge channel list"
+ " between legacy and hotlist\n",
+ __FUNCTION__));
+ goto exit;
+ }
+ }
+ }
+ }
+ _params->params_legacy.scan_fr = scan_fr;
+ _params->params_legacy.pno_repeat = pno_repeat;
+ _params->params_legacy.pno_freq_expo_max = pno_freq_expo_max;
+ _params->params_legacy.nchan = nchan;
+ _params->params_legacy.nssid = nssid;
+ INIT_LIST_HEAD(&_params->params_legacy.ssid_list);
+ 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;
+ }
+ for (i = 0; i < nssid; i++) {
+ _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__));
+ goto exit;
+ }
+ _pno_ssid->SSID_len = ssid_list[i].SSID_len;
+ memcpy(_pno_ssid->SSID, ssid_list[i].SSID, _pno_ssid->SSID_len);
+ list_add_tail(&_pno_ssid->list, &_params->params_legacy.ssid_list);
+
+ }
+ 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_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;
+ int i = 0;
+ dhd_pno_params_t *_params;
+ dhd_pno_params_t *_params2;
+ dhd_pno_status_info_t *_pno_state;
+ wlc_ssid_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) {
+ struct dhd_pno_ssid *iter, *next;
+ 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 = kzalloc(sizeof(wlc_ssid_t) *
+ _params2->params_legacy.nssid, GFP_KERNEL);
+ if (p_ssid_list == NULL) {
+ DHD_ERROR(("%s : failed to allocate wlc_ssid_t array (count: %d)",
+ __FUNCTION__, _params2->params_legacy.nssid));
+ err = BCME_ERROR;
+ _pno_state->pno_mode &= ~DHD_PNO_LEGACY_MODE;
+ goto exit;
+ }
+ i = 0;
+ /* convert dhd_pno_ssid to dhd_pno_ssid */
+ list_for_each_entry_safe(iter, next, &_params2->params_legacy.ssid_list, list) {
+ p_ssid_list[i].SSID_len = iter->SSID_len;
+ memcpy(p_ssid_list->SSID, iter->SSID, p_ssid_list[i].SSID_len);
+ i++;
+ }
+ 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;
+}
+
+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;
+ }
+ 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;
+ }
+ if (!(_pno_state->pno_mode & DHD_PNO_BATCH_MODE)) {
+ DHD_ERROR(("%s: Batching SCAN mode is not enabled\n", __FUNCTION__));
+ goto exit;
+ }
+ 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;
+ 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--;
+ }
+ /* 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);
+ if (waitqueue_active(&_pno_state->get_batch_done.wait))
+ 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;
+ }
+ 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;
+ 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);
+ 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;
+ wlc_ssid_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;
+ }
+ 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;
+ struct dhd_pno_ssid *iter, *next;
+ _params_legacy =
+ &(_pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS].params_legacy);
+ p_ssid_list = kzalloc(sizeof(wlc_ssid_t) *
+ _params_legacy->nssid, GFP_KERNEL);
+ if (p_ssid_list == NULL) {
+ DHD_ERROR(("%s : failed to allocate wlc_ssid_t array (count: %d)",
+ __FUNCTION__, _params_legacy->nssid));
+ err = BCME_ERROR;
+ _pno_state->pno_mode &= ~DHD_PNO_LEGACY_MODE;
+ goto exit;
+ }
+ i = 0;
+ /* convert dhd_pno_ssid to dhd_pno_ssid */
+ list_for_each_entry_safe(iter, next, &_params_legacy->ssid_list, list) {
+ p_ssid_list[i].SSID_len = iter->SSID_len;
+ memcpy(p_ssid_list[i].SSID, iter->SSID, p_ssid_list[i].SSID_len);
+ i++;
+ }
+ 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);
+ if (p_ssid_list)
+ kfree(p_ssid_list);
+ 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_t *p_ssid_list;
+ 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;
+ struct dhd_pno_ssid *iter, *next;
+ _params_legacy =
+ &(_pno_state->pno_params_arr[INDEX_OF_LEGACY_PARAMS].params_legacy);
+ p_ssid_list =
+ kzalloc(sizeof(wlc_ssid_t) * _params_legacy->nssid, GFP_KERNEL);
+ if (p_ssid_list == NULL) {
+ DHD_ERROR(("%s : failed to allocate wlc_ssid_t array (count: %d)",
+ __FUNCTION__, _params_legacy->nssid));
+ err = BCME_ERROR;
+ _pno_state->pno_mode &= ~DHD_PNO_LEGACY_MODE;
+ goto exit;
+ }
+ /* convert dhd_pno_ssid to dhd_pno_ssid */
+ list_for_each_entry_safe(iter, next, &_params_legacy->ssid_list, list) {
+ p_ssid_list->SSID_len = iter->SSID_len;
+ memcpy(p_ssid_list->SSID, iter->SSID, p_ssid_list->SSID_len);
+ p_ssid_list++;
+ }
+ 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:
+ return err;
+}
+
+int
+dhd_pno_event_handler(dhd_pub_t *dhd, wl_event_msg_t *event, void *event_data)
+{
+ int err = BCME_OK;
+ uint status, event_type, flags, datalen;
+ 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);
+ flags = ntoh16(event->flags);
+ status = ntoh32(event->status);
+ datalen = ntoh32(event->datalen);
+ 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:
+ {
+ struct dhd_pno_batch_params *params_batch;
+ params_batch = &_pno_state->pno_params_arr[INDEX_OF_BATCH_PARAMS].params_batch;
+ if (!waitqueue_active(&_pno_state->get_batch_done.wait)) {
+ 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;
+ }
+ 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);
+ 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"));
+ }
+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);
+ }
+
+ 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 */
generated by cgit v1.1 at 2024-05-02 17:39:08 +0000