diff options
| -rw-r--r-- | drivers/net/wireless/wl1251/acx.c | 25 | ||||
| -rw-r--r-- | drivers/net/wireless/wl1251/acx.h | 45 | ||||
| -rw-r--r-- | drivers/net/wireless/wl1251/event.c | 18 | ||||
| -rw-r--r-- | drivers/net/wireless/wl1251/main.c | 15 | ||||
| -rw-r--r-- | drivers/net/wireless/wl1251/wl1251.h | 5 |
5 files changed, 107 insertions, 1 deletions
diff --git a/drivers/net/wireless/wl1251/acx.c b/drivers/net/wireless/wl1251/acx.c index 8c94366..ef8370e 100644 --- a/drivers/net/wireless/wl1251/acx.c +++ b/drivers/net/wireless/wl1251/acx.c @@ -776,6 +776,31 @@ out: return ret; } +int wl1251_acx_low_rssi(struct wl1251 *wl, s8 threshold, u8 weight, + u8 depth, enum wl1251_acx_low_rssi_type type) +{ + struct acx_low_rssi *rssi; + int ret; + + wl1251_debug(DEBUG_ACX, "acx low rssi"); + + rssi = kzalloc(sizeof(*rssi), GFP_KERNEL); + if (!rssi) + return -ENOMEM; + + rssi->threshold = threshold; + rssi->weight = weight; + rssi->depth = depth; + rssi->type = type; + + ret = wl1251_cmd_configure(wl, ACX_LOW_RSSI, rssi, sizeof(*rssi)); + if (ret < 0) + wl1251_warning("failed to set low rssi threshold: %d", ret); + + kfree(rssi); + return ret; +} + int wl1251_acx_set_preamble(struct wl1251 *wl, enum acx_preamble_type preamble) { struct acx_preamble *acx; diff --git a/drivers/net/wireless/wl1251/acx.h b/drivers/net/wireless/wl1251/acx.h index 6a19f38..c2ba100 100644 --- a/drivers/net/wireless/wl1251/acx.h +++ b/drivers/net/wireless/wl1251/acx.h @@ -399,6 +399,49 @@ struct acx_rts_threshold { u8 pad[2]; } __packed; +enum wl1251_acx_low_rssi_type { + /* + * The event is a "Level" indication which keeps triggering + * as long as the average RSSI is below the threshold. + */ + WL1251_ACX_LOW_RSSI_TYPE_LEVEL = 0, + + /* + * The event is an "Edge" indication which triggers + * only when the RSSI threshold is crossed from above. + */ + WL1251_ACX_LOW_RSSI_TYPE_EDGE = 1, +}; + +struct acx_low_rssi { + struct acx_header header; + + /* + * The threshold (in dBm) below (or above after low rssi + * indication) which the firmware generates an interrupt to the + * host. This parameter is signed. + */ + s8 threshold; + + /* + * The weight of the current RSSI sample, before adding the new + * sample, that is used to calculate the average RSSI. + */ + u8 weight; + + /* + * The number of Beacons/Probe response frames that will be + * received before issuing the Low or Regained RSSI event. + */ + u8 depth; + + /* + * Configures how the Low RSSI Event is triggered. Refer to + * enum wl1251_acx_low_rssi_type for more. + */ + u8 type; +} __packed; + struct acx_beacon_filter_option { struct acx_header header; @@ -1418,6 +1461,8 @@ int wl1251_acx_cca_threshold(struct wl1251 *wl); int wl1251_acx_bcn_dtim_options(struct wl1251 *wl); int wl1251_acx_aid(struct wl1251 *wl, u16 aid); int wl1251_acx_event_mbox_mask(struct wl1251 *wl, u32 event_mask); +int wl1251_acx_low_rssi(struct wl1251 *wl, s8 threshold, u8 weight, + u8 depth, enum wl1251_acx_low_rssi_type type); int wl1251_acx_set_preamble(struct wl1251 *wl, enum acx_preamble_type preamble); int wl1251_acx_cts_protect(struct wl1251 *wl, enum acx_ctsprotect_type ctsprotect); diff --git a/drivers/net/wireless/wl1251/event.c b/drivers/net/wireless/wl1251/event.c index 712372e..dfc4579 100644 --- a/drivers/net/wireless/wl1251/event.c +++ b/drivers/net/wireless/wl1251/event.c @@ -90,6 +90,24 @@ static int wl1251_event_process(struct wl1251 *wl, struct event_mailbox *mbox) } } + if (wl->vif && wl->rssi_thold) { + if (vector & ROAMING_TRIGGER_LOW_RSSI_EVENT_ID) { + wl1251_debug(DEBUG_EVENT, + "ROAMING_TRIGGER_LOW_RSSI_EVENT"); + ieee80211_cqm_rssi_notify(wl->vif, + NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW, + GFP_KERNEL); + } + + if (vector & ROAMING_TRIGGER_REGAINED_RSSI_EVENT_ID) { + wl1251_debug(DEBUG_EVENT, + "ROAMING_TRIGGER_REGAINED_RSSI_EVENT"); + ieee80211_cqm_rssi_notify(wl->vif, + NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH, + GFP_KERNEL); + } + } + return 0; } diff --git a/drivers/net/wireless/wl1251/main.c b/drivers/net/wireless/wl1251/main.c index 012e1a4..0325643 100644 --- a/drivers/net/wireless/wl1251/main.c +++ b/drivers/net/wireless/wl1251/main.c @@ -502,6 +502,7 @@ static void wl1251_op_stop(struct ieee80211_hw *hw) wl->psm = 0; wl->tx_queue_stopped = false; wl->power_level = WL1251_DEFAULT_POWER_LEVEL; + wl->rssi_thold = 0; wl->channel = WL1251_DEFAULT_CHANNEL; wl1251_debugfs_reset(wl); @@ -959,6 +960,16 @@ static void wl1251_op_bss_info_changed(struct ieee80211_hw *hw, if (ret < 0) goto out; + if (changed & BSS_CHANGED_CQM) { + ret = wl1251_acx_low_rssi(wl, bss_conf->cqm_rssi_thold, + WL1251_DEFAULT_LOW_RSSI_WEIGHT, + WL1251_DEFAULT_LOW_RSSI_DEPTH, + WL1251_ACX_LOW_RSSI_TYPE_EDGE); + if (ret < 0) + goto out; + wl->rssi_thold = bss_conf->cqm_rssi_thold; + } + if (changed & BSS_CHANGED_BSSID) { memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN); @@ -1310,7 +1321,8 @@ int wl1251_init_ieee80211(struct wl1251 *wl) wl->hw->flags = IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_SUPPORTS_PS | IEEE80211_HW_BEACON_FILTER | - IEEE80211_HW_SUPPORTS_UAPSD; + IEEE80211_HW_SUPPORTS_UAPSD | + IEEE80211_HW_SUPPORTS_CQM_RSSI; wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); wl->hw->wiphy->max_scan_ssids = 1; @@ -1374,6 +1386,7 @@ struct ieee80211_hw *wl1251_alloc_hw(void) wl->psm_requested = false; wl->tx_queue_stopped = false; wl->power_level = WL1251_DEFAULT_POWER_LEVEL; + wl->rssi_thold = 0; wl->beacon_int = WL1251_DEFAULT_BEACON_INT; wl->dtim_period = WL1251_DEFAULT_DTIM_PERIOD; wl->vif = NULL; diff --git a/drivers/net/wireless/wl1251/wl1251.h b/drivers/net/wireless/wl1251/wl1251.h index 462ac5b..bb23cd5 100644 --- a/drivers/net/wireless/wl1251/wl1251.h +++ b/drivers/net/wireless/wl1251/wl1251.h @@ -370,6 +370,8 @@ struct wl1251 { /* in dBm */ int power_level; + int rssi_thold; + struct wl1251_stats stats; struct wl1251_debugfs debugfs; @@ -433,4 +435,7 @@ void wl1251_disable_interrupts(struct wl1251 *wl); #define WL1251_PART_WORK_REG_START REGISTERS_BASE #define WL1251_PART_WORK_REG_SIZE REGISTERS_WORK_SIZE +#define WL1251_DEFAULT_LOW_RSSI_WEIGHT 10 +#define WL1251_DEFAULT_LOW_RSSI_DEPTH 10 + #endif |