From: Dedy Lansky <qca_dlansky@xxxxxxxxxxxxxxxx> Add support for sched_scan_start/stop by sending PNO commands to FW. Driver reports max_sched_scan_reqs and invokes cfg80211_sched_scan_results upon receiving WMI_SCHED_SCAN_RESULT_EVENTID from FW. Signed-off-by: Dedy Lansky <qca_dlansky@xxxxxxxxxxxxxxxx> Signed-off-by: Maya Erez <qca_merez@xxxxxxxxxxxxxxxx> --- drivers/net/wireless/ath/wil6210/cfg80211.c | 65 ++++++++ drivers/net/wireless/ath/wil6210/main.c | 8 + drivers/net/wireless/ath/wil6210/wil6210.h | 4 + drivers/net/wireless/ath/wil6210/wmi.c | 237 ++++++++++++++++++++++++++++ drivers/net/wireless/ath/wil6210/wmi.h | 99 +++++++++--- 5 files changed, 395 insertions(+), 18 deletions(-) diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c index 771a534..39509d0 100644 --- a/drivers/net/wireless/ath/wil6210/cfg80211.c +++ b/drivers/net/wireless/ath/wil6210/cfg80211.c @@ -1751,6 +1751,69 @@ static int wil_cfg80211_resume(struct wiphy *wiphy) return 0; } +static int +wil_cfg80211_sched_scan_start(struct wiphy *wiphy, + struct net_device *dev, + struct cfg80211_sched_scan_request *request) +{ + struct wil6210_priv *wil = wiphy_to_wil(wiphy); + int i, rc; + + wil_dbg_misc(wil, + "sched scan start: n_ssids %d, ie_len %zu, flags 0x%x\n", + request->n_ssids, request->ie_len, request->flags); + for (i = 0; i < request->n_ssids; i++) { + wil_dbg_misc(wil, "SSID[%d]:", i); + wil_hex_dump_misc("SSID ", DUMP_PREFIX_OFFSET, 16, 1, + request->ssids[i].ssid, + request->ssids[i].ssid_len, true); + } + wil_dbg_misc(wil, "channels:"); + for (i = 0; i < request->n_channels; i++) + wil_dbg_misc(wil, " %d%s", request->channels[i]->hw_value, + i == request->n_channels - 1 ? "\n" : ""); + wil_dbg_misc(wil, "n_match_sets %d, min_rssi_thold %d, delay %d\n", + request->n_match_sets, request->min_rssi_thold, + request->delay); + for (i = 0; i < request->n_match_sets; i++) { + struct cfg80211_match_set *ms = &request->match_sets[i]; + + wil_dbg_misc(wil, "MATCHSET[%d]: rssi_thold %d\n", + i, ms->rssi_thold); + wil_hex_dump_misc("SSID ", DUMP_PREFIX_OFFSET, 16, 1, + ms->ssid.ssid, + ms->ssid.ssid_len, true); + } + wil_dbg_misc(wil, "n_scan_plans %d\n", request->n_scan_plans); + for (i = 0; i < request->n_scan_plans; i++) { + struct cfg80211_sched_scan_plan *sp = &request->scan_plans[i]; + + wil_dbg_misc(wil, "SCAN PLAN[%d]: interval %d iterations %d\n", + i, sp->interval, sp->iterations); + } + + rc = wmi_set_ie(wil, WMI_FRAME_PROBE_REQ, request->ie_len, request->ie); + if (rc) + return rc; + return wmi_start_sched_scan(wil, request); +} + +static int +wil_cfg80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, + u64 reqid) +{ + struct wil6210_priv *wil = wiphy_to_wil(wiphy); + int rc; + + rc = wmi_stop_sched_scan(wil); + /* device would return error if it thinks PNO is already stopped. + * ignore the return code so user space and driver gets back in-sync + */ + wil_dbg_misc(wil, "sched scan stopped (%d)\n", rc); + + return 0; +} + static const struct cfg80211_ops wil_cfg80211_ops = { .add_virtual_intf = wil_cfg80211_add_iface, .del_virtual_intf = wil_cfg80211_del_iface, @@ -1784,6 +1847,8 @@ static int wil_cfg80211_resume(struct wiphy *wiphy) .set_power_mgmt = wil_cfg80211_set_power_mgmt, .suspend = wil_cfg80211_suspend, .resume = wil_cfg80211_resume, + .sched_scan_start = wil_cfg80211_sched_scan_start, + .sched_scan_stop = wil_cfg80211_sched_scan_stop, }; static void wil_wiphy_init(struct wiphy *wiphy) diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c index 1b53cd3..5d69796 100644 --- a/drivers/net/wireless/ath/wil6210/main.c +++ b/drivers/net/wireless/ath/wil6210/main.c @@ -785,6 +785,14 @@ void wil_refresh_fw_capabilities(struct wil6210_priv *wil) wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; else wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; + + if (test_bit(WMI_FW_CAPABILITY_PNO, wil->fw_capabilities)) { + wiphy->max_sched_scan_reqs = 1; + wiphy->max_sched_scan_ssids = WMI_MAX_PNO_SSID_NUM; + wiphy->max_match_sets = WMI_MAX_PNO_SSID_NUM; + wiphy->max_sched_scan_ie_len = WMI_MAX_IE_LEN; + wiphy->max_sched_scan_plans = WMI_MAX_PLANS_NUM; + } } void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r) diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h index cf27d97..aa85e9c 100644 --- a/drivers/net/wireless/ath/wil6210/wil6210.h +++ b/drivers/net/wireless/ath/wil6210/wil6210.h @@ -1032,4 +1032,8 @@ int wil_request_firmware(struct wil6210_priv *wil, const char *name, void wil6210_set_halp(struct wil6210_priv *wil); void wil6210_clear_halp(struct wil6210_priv *wil); +int wmi_start_sched_scan(struct wil6210_priv *wil, + struct cfg80211_sched_scan_request *request); +int wmi_stop_sched_scan(struct wil6210_priv *wil); + #endif /* __WIL6210_H__ */ diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c index 8ace618..d06090d 100644 --- a/drivers/net/wireless/ath/wil6210/wmi.c +++ b/drivers/net/wireless/ath/wil6210/wmi.c @@ -38,6 +38,7 @@ " 60G device led enablement. Set the led ID (0-2) to enable"); #define WIL_WAIT_FOR_SUSPEND_RESUME_COMP 200 +#define WIL_WMI_CALL_GENERAL_TO_MS 100 /** * WMI event receiving - theory of operations @@ -314,6 +315,10 @@ static const char *cmdid2name(u16 cmdid) return "WMI_LINK_MAINTAIN_CFG_WRITE_CMD"; case WMI_LO_POWER_CALIB_FROM_OTP_CMDID: return "WMI_LO_POWER_CALIB_FROM_OTP_CMD"; + case WMI_START_SCHED_SCAN_CMDID: + return "WMI_START_SCHED_SCAN_CMD"; + case WMI_STOP_SCHED_SCAN_CMDID: + return "WMI_STOP_SCHED_SCAN_CMD"; default: return "Untracked CMD"; } @@ -428,6 +433,12 @@ static const char *eventid2name(u16 eventid) return "WMI_LINK_MAINTAIN_CFG_WRITE_DONE_EVENT"; case WMI_LO_POWER_CALIB_FROM_OTP_EVENTID: return "WMI_LO_POWER_CALIB_FROM_OTP_EVENT"; + case WMI_START_SCHED_SCAN_EVENTID: + return "WMI_START_SCHED_SCAN_EVENT"; + case WMI_STOP_SCHED_SCAN_EVENTID: + return "WMI_STOP_SCHED_SCAN_EVENT"; + case WMI_SCHED_SCAN_RESULT_EVENTID: + return "WMI_SCHED_SCAN_RESULT_EVENT"; default: return "Untracked EVENT"; } @@ -1066,6 +1077,75 @@ static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len) spin_unlock_bh(&sta->tid_rx_lock); } +static void +wmi_evt_sched_scan_result(struct wil6210_priv *wil, int id, void *d, int len) +{ + struct wmi_sched_scan_result_event *data = d; + struct wiphy *wiphy = wil_to_wiphy(wil); + struct ieee80211_mgmt *rx_mgmt_frame = + (struct ieee80211_mgmt *)data->payload; + int flen = len - offsetof(struct wmi_sched_scan_result_event, payload); + int ch_no; + u32 freq; + struct ieee80211_channel *channel; + s32 signal; + __le16 fc; + u32 d_len; + struct cfg80211_bss *bss; + + if (flen < 0) { + wil_err(wil, "sched scan result event too short, len %d\n", + len); + return; + } + + d_len = le32_to_cpu(data->info.len); + if (d_len != flen) { + wil_err(wil, + "sched scan result length mismatch, d_len %d should be %d\n", + d_len, flen); + return; + } + + fc = rx_mgmt_frame->frame_control; + if (!ieee80211_is_probe_resp(fc)) { + wil_err(wil, "sched scan result invalid frame, fc 0x%04x\n", + fc); + return; + } + + ch_no = data->info.channel + 1; + freq = ieee80211_channel_to_frequency(ch_no, NL80211_BAND_60GHZ); + channel = ieee80211_get_channel(wiphy, freq); + if (test_bit(WMI_FW_CAPABILITY_RSSI_REPORTING, wil->fw_capabilities)) + signal = 100 * data->info.rssi; + else + signal = data->info.sqi; + + wil_dbg_wmi(wil, "sched scan result: channel %d MCS %d RSSI %d\n", + data->info.channel, data->info.mcs, data->info.rssi); + wil_dbg_wmi(wil, "len %d qid %d mid %d cid %d\n", + d_len, data->info.qid, data->info.mid, data->info.cid); + wil_hex_dump_wmi("PROBE ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame, + d_len, true); + + if (!channel) { + wil_err(wil, "Frame on unsupported channel\n"); + return; + } + + bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame, + d_len, signal, GFP_KERNEL); + if (bss) { + wil_dbg_wmi(wil, "Added BSS %pM\n", rx_mgmt_frame->bssid); + cfg80211_put_bss(wiphy, bss); + } else { + wil_err(wil, "cfg80211_inform_bss_frame() failed\n"); + } + + cfg80211_sched_scan_results(wiphy, 0); +} + /** * Some events are ignored for purpose; and need not be interpreted as * "unhandled events" @@ -1093,6 +1173,7 @@ static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len) {WMI_DELBA_EVENTID, wmi_evt_delba}, {WMI_VRING_EN_EVENTID, wmi_evt_vring_en}, {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_ignore}, + {WMI_SCHED_SCAN_RESULT_EVENTID, wmi_evt_sched_scan_result}, }; /* @@ -2284,3 +2365,159 @@ bool wil_is_wmi_idle(struct wil6210_priv *wil) spin_unlock_irqrestore(&wil->wmi_ev_lock, flags); return rc; } + +static void +wmi_sched_scan_set_ssids(struct wil6210_priv *wil, + struct wmi_start_sched_scan_cmd *cmd, + struct cfg80211_ssid *ssids, int n_ssids, + struct cfg80211_match_set *match_sets, + int n_match_sets) +{ + int i; + + if (n_match_sets > WMI_MAX_PNO_SSID_NUM) { + wil_dbg_wmi(wil, "too many match sets (%d), use first %d\n", + n_match_sets, WMI_MAX_PNO_SSID_NUM); + n_match_sets = WMI_MAX_PNO_SSID_NUM; + } + cmd->num_of_ssids = n_match_sets; + + for (i = 0; i < n_match_sets; i++) { + struct wmi_sched_scan_ssid_match *wmi_match = + &cmd->ssid_for_match[i]; + struct cfg80211_match_set *cfg_match = &match_sets[i]; + int j; + + wmi_match->ssid_len = cfg_match->ssid.ssid_len; + memcpy(wmi_match->ssid, cfg_match->ssid.ssid, + min_t(u8, wmi_match->ssid_len, WMI_MAX_SSID_LEN)); + wmi_match->rssi_threshold = S8_MIN; + if (cfg_match->rssi_thold >= S8_MIN && + cfg_match->rssi_thold <= S8_MAX) + wmi_match->rssi_threshold = cfg_match->rssi_thold; + + for (j = 0; j < n_ssids; j++) + if (wmi_match->ssid_len == ssids[j].ssid_len && + memcmp(wmi_match->ssid, ssids[j].ssid, + wmi_match->ssid_len) == 0) + wmi_match->add_ssid_to_probe = true; + } +} + +static void +wmi_sched_scan_set_channels(struct wil6210_priv *wil, + struct wmi_start_sched_scan_cmd *cmd, + u32 n_channels, + struct ieee80211_channel **channels) +{ + int i; + + if (n_channels > WMI_MAX_CHANNEL_NUM) { + wil_dbg_wmi(wil, "too many channels (%d), use first %d\n", + n_channels, WMI_MAX_CHANNEL_NUM); + n_channels = WMI_MAX_CHANNEL_NUM; + } + cmd->num_of_channels = n_channels; + + for (i = 0; i < n_channels; i++) { + struct ieee80211_channel *cfg_chan = channels[i]; + + cmd->channel_list[i] = cfg_chan->hw_value - 1; + } +} + +static void +wmi_sched_scan_set_plans(struct wil6210_priv *wil, + struct wmi_start_sched_scan_cmd *cmd, + struct cfg80211_sched_scan_plan *scan_plans, + int n_scan_plans) +{ + int i; + + if (n_scan_plans > WMI_MAX_PLANS_NUM) { + wil_dbg_wmi(wil, "too many plans (%d), use first %d\n", + n_scan_plans, WMI_MAX_PLANS_NUM); + n_scan_plans = WMI_MAX_PLANS_NUM; + } + + for (i = 0; i < n_scan_plans; i++) { + struct cfg80211_sched_scan_plan *cfg_plan = &scan_plans[i]; + + cmd->scan_plans[i].interval_sec = + cpu_to_le16(cfg_plan->interval); + cmd->scan_plans[i].num_of_iterations = + cpu_to_le16(cfg_plan->iterations); + } +} + +int wmi_start_sched_scan(struct wil6210_priv *wil, + struct cfg80211_sched_scan_request *request) +{ + int rc; + struct wmi_start_sched_scan_cmd cmd = { + .min_rssi_threshold = S8_MIN, + .initial_delay_sec = cpu_to_le16(request->delay), + }; + struct { + struct wmi_cmd_hdr wmi; + struct wmi_start_sched_scan_event evt; + } __packed reply; + + if (!test_bit(WMI_FW_CAPABILITY_PNO, wil->fw_capabilities)) + return -ENOTSUPP; + + if (request->min_rssi_thold >= S8_MIN && + request->min_rssi_thold <= S8_MAX) + cmd.min_rssi_threshold = request->min_rssi_thold; + + wmi_sched_scan_set_ssids(wil, &cmd, request->ssids, request->n_ssids, + request->match_sets, request->n_match_sets); + wmi_sched_scan_set_channels(wil, &cmd, + request->n_channels, request->channels); + wmi_sched_scan_set_plans(wil, &cmd, + request->scan_plans, request->n_scan_plans); + + reply.evt.result = WMI_PNO_REJECT; + + rc = wmi_call(wil, WMI_START_SCHED_SCAN_CMDID, &cmd, sizeof(cmd), + WMI_START_SCHED_SCAN_EVENTID, &reply, sizeof(reply), + WIL_WMI_CALL_GENERAL_TO_MS); + if (rc) + return rc; + + if (reply.evt.result != WMI_PNO_SUCCESS) { + wil_err(wil, "start sched scan failed, result %d\n", + reply.evt.result); + return -EINVAL; + } + + return 0; +} + +int wmi_stop_sched_scan(struct wil6210_priv *wil) +{ + int rc; + struct { + struct wmi_cmd_hdr wmi; + struct wmi_stop_sched_scan_event evt; + } __packed reply; + + if (!test_bit(WMI_FW_CAPABILITY_PNO, wil->fw_capabilities)) + return -ENOTSUPP; + + reply.evt.result = WMI_PNO_REJECT; + + rc = wmi_call(wil, WMI_STOP_SCHED_SCAN_CMDID, NULL, 0, + WMI_STOP_SCHED_SCAN_EVENTID, &reply, sizeof(reply), + WIL_WMI_CALL_GENERAL_TO_MS); + if (rc) + return rc; + + if (reply.evt.result != WMI_PNO_SUCCESS) { + wil_err(wil, "stop sched scan failed, result %d\n", + reply.evt.result); + return -EINVAL; + } + + return 0; +} diff --git a/drivers/net/wireless/ath/wil6210/wmi.h b/drivers/net/wireless/ath/wil6210/wmi.h index d9e220a..c7b84d1 100644 --- a/drivers/net/wireless/ath/wil6210/wmi.h +++ b/drivers/net/wireless/ath/wil6210/wmi.h @@ -71,6 +71,7 @@ enum wmi_fw_capability { WMI_FW_CAPABILITY_RSSI_REPORTING = 12, WMI_FW_CAPABILITY_SET_SILENT_RSSI_TABLE = 13, WMI_FW_CAPABILITY_LO_POWER_CALIB_FROM_OTP = 14, + WMI_FW_CAPABILITY_PNO = 15, WMI_FW_CAPABILITY_MAX, }; @@ -87,6 +88,8 @@ enum wmi_command_id { WMI_CONNECT_CMDID = 0x01, WMI_DISCONNECT_CMDID = 0x03, WMI_DISCONNECT_STA_CMDID = 0x04, + WMI_START_SCHED_SCAN_CMDID = 0x05, + WMI_STOP_SCHED_SCAN_CMDID = 0x06, WMI_START_SCAN_CMDID = 0x07, WMI_SET_BSS_FILTER_CMDID = 0x09, WMI_SET_PROBED_SSID_CMDID = 0x0A, @@ -385,6 +388,38 @@ struct wmi_start_scan_cmd { } channel_list[0]; } __packed; +#define WMI_MAX_PNO_SSID_NUM (16) +#define WMI_MAX_CHANNEL_NUM (6) +#define WMI_MAX_PLANS_NUM (2) + +/* WMI_START_SCHED_SCAN_CMDID */ +struct wmi_sched_scan_ssid_match { + u8 ssid_len; + u8 ssid[WMI_MAX_SSID_LEN]; + s8 rssi_threshold; + /* boolean */ + u8 add_ssid_to_probe; + u8 reserved; +} __packed; + +/* WMI_START_SCHED_SCAN_CMDID */ +struct wmi_sched_scan_plan { + __le16 interval_sec; + __le16 num_of_iterations; +} __packed; + +/* WMI_START_SCHED_SCAN_CMDID */ +struct wmi_start_sched_scan_cmd { + struct wmi_sched_scan_ssid_match ssid_for_match[WMI_MAX_PNO_SSID_NUM]; + u8 num_of_ssids; + s8 min_rssi_threshold; + u8 channel_list[WMI_MAX_CHANNEL_NUM]; + u8 num_of_channels; + u8 reserved; + __le16 initial_delay_sec; + struct wmi_sched_scan_plan scan_plans[WMI_MAX_PLANS_NUM]; +} __packed; + /* WMI_SET_PROBED_SSID_CMDID */ #define MAX_PROBED_SSID_INDEX (3) @@ -1238,6 +1273,9 @@ enum wmi_event_id { WMI_READY_EVENTID = 0x1001, WMI_CONNECT_EVENTID = 0x1002, WMI_DISCONNECT_EVENTID = 0x1003, + WMI_START_SCHED_SCAN_EVENTID = 0x1005, + WMI_STOP_SCHED_SCAN_EVENTID = 0x1006, + WMI_SCHED_SCAN_RESULT_EVENTID = 0x1007, WMI_SCAN_COMPLETE_EVENTID = 0x100A, WMI_REPORT_STATISTICS_EVENTID = 0x100B, WMI_RD_MEM_RSP_EVENTID = 0x1800, @@ -1600,6 +1638,49 @@ struct wmi_scan_complete_event { __le32 status; } __packed; +/* wmi_rx_mgmt_info */ +struct wmi_rx_mgmt_info { + u8 mcs; + s8 rssi; + u8 range; + u8 sqi; + __le16 stype; + __le16 status; + __le32 len; + /* Not resolved when == 0xFFFFFFFF == > Broadcast to all MIDS */ + u8 qid; + /* Not resolved when == 0xFFFFFFFF == > Broadcast to all MIDS */ + u8 mid; + u8 cid; + /* From Radio MNGR */ + u8 channel; +} __packed; + +/* WMI_START_SCHED_SCAN_EVENTID */ +enum wmi_pno_result { + WMI_PNO_SUCCESS = 0x00, + WMI_PNO_REJECT = 0x01, + WMI_PNO_INVALID_PARAMETERS = 0x02, + WMI_PNO_NOT_ENABLED = 0x03, +}; + +struct wmi_start_sched_scan_event { + /* pno_result */ + u8 result; + u8 reserved[3]; +} __packed; + +struct wmi_stop_sched_scan_event { + /* pno_result */ + u8 result; + u8 reserved[3]; +} __packed; + +struct wmi_sched_scan_result_event { + struct wmi_rx_mgmt_info info; + u8 payload[0]; +} __packed; + /* WMI_ACS_PASSIVE_SCAN_COMPLETE_EVENT */ enum wmi_acs_info_bitmask { WMI_ACS_INFO_BITMASK_BEACON_FOUND = 0x01, @@ -1814,24 +1895,6 @@ struct wmi_get_ssid_event { u8 ssid[WMI_MAX_SSID_LEN]; } __packed; -/* wmi_rx_mgmt_info */ -struct wmi_rx_mgmt_info { - u8 mcs; - s8 rssi; - u8 range; - u8 sqi; - __le16 stype; - __le16 status; - __le32 len; - /* Not resolved when == 0xFFFFFFFF == > Broadcast to all MIDS */ - u8 qid; - /* Not resolved when == 0xFFFFFFFF == > Broadcast to all MIDS */ - u8 mid; - u8 cid; - /* From Radio MNGR */ - u8 channel; -} __packed; - /* EVENT: WMI_RF_XPM_READ_RESULT_EVENTID */ struct wmi_rf_xpm_read_result_event { /* enum wmi_fw_status_e - success=0 or fail=1 */ -- 1.9.1