We support changing the channel BW when we started the STA role on
a 40Mhz bandwidth. Otherwise a reconnection is required.
Save the started channel width and use it when channel width updates
arrive.
Signed-off-by: Arik Nemtsov <arik@xxxxxxxxxx>
---
drivers/net/wireless/ti/wl18xx/acx.c | 31 +++++++++++++++++++++++
drivers/net/wireless/ti/wl18xx/acx.h | 14 +++++++++++
drivers/net/wireless/ti/wl18xx/main.c | 38 +++++++++++++++++++++++++++++
drivers/net/wireless/ti/wlcore/cmd.c | 1 +
drivers/net/wireless/ti/wlcore/hw_ops.h | 8 ++++++
drivers/net/wireless/ti/wlcore/main.c | 12 +++++++++
drivers/net/wireless/ti/wlcore/wlcore.h | 2 ++
drivers/net/wireless/ti/wlcore/wlcore_i.h | 2 ++
8 files changed, 108 insertions(+)
diff --git a/drivers/net/wireless/ti/wl18xx/acx.c b/drivers/net/wireless/ti/wl18xx/acx.c
index adff9cd..801d8af 100644
--- a/drivers/net/wireless/ti/wl18xx/acx.c
+++ b/drivers/net/wireless/ti/wl18xx/acx.c
@@ -109,3 +109,34 @@ out:
kfree(acx);
return ret;
}
+
+int wl18xx_acx_peer_ht_operation_mode(struct wl1271 *wl, u8 hlid, bool wide)
+{
+ struct wlcore_peer_ht_operation_mode *acx;
+ int ret;
+
+ wl1271_debug(DEBUG_ACX, "acx peer ht operation mode hlid %d bw %d",
+ hlid, wide);
+
+ acx = kzalloc(sizeof(*acx), GFP_KERNEL);
+ if (!acx) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ acx->hlid = hlid;
+ acx->bandwidth = wide ? WLCORE_BANDWIDTH_40MHZ : WLCORE_BANDWIDTH_20MHZ;
+
+ ret = wl1271_cmd_configure(wl, ACX_PEER_HT_OPERATION_MODE_CFG, acx,
+ sizeof(*acx));
+
+ if (ret < 0) {
+ wl1271_warning("acx peer ht operation mode failed: %d", ret);
+ goto out;
+ }
+
+out:
+ kfree(acx);
+ return ret;
+
+}
diff --git a/drivers/net/wireless/ti/wl18xx/acx.h b/drivers/net/wireless/ti/wl18xx/acx.h
index 394d125..b57e348 100644
--- a/drivers/net/wireless/ti/wl18xx/acx.h
+++ b/drivers/net/wireless/ti/wl18xx/acx.h
@@ -284,10 +284,24 @@ struct wl18xx_acx_clear_statistics {
struct acx_header header;
};
+enum wlcore_bandwidth {
+ WLCORE_BANDWIDTH_20MHZ,
+ WLCORE_BANDWIDTH_40MHZ,
+};
+
+struct wlcore_peer_ht_operation_mode {
+ struct acx_header header;
+
+ u8 hlid;
+ u8 bandwidth; /* enum wlcore_bandwidth */
+ u8 padding[2];
+};
+
int wl18xx_acx_host_if_cfg_bitmap(struct wl1271 *wl, u32 host_cfg_bitmap,
u32 sdio_blk_size, u32 extra_mem_blks,
u32 len_field_size);
int wl18xx_acx_set_checksum_state(struct wl1271 *wl);
int wl18xx_acx_clear_statistics(struct wl1271 *wl);
+int wl18xx_acx_peer_ht_operation_mode(struct wl1271 *wl, u8 hlid, bool wide);
#endif /* __WL18XX_ACX_H__ */
diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index c015231..c616c21 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -1319,6 +1319,43 @@ static u32 wl18xx_pre_pkt_send(struct wl1271 *wl,
return buf_offset;
}
+static void wl18xx_sta_rc_update(struct wl1271 *wl,
+ struct wl12xx_vif *wlvif,
+ struct ieee80211_sta *sta,
+ u32 changed)
+{
+ bool wide = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
+
+ wl1271_debug(DEBUG_MAC80211, "mac80211 sta_rc_update wide %d", wide);
+
+ if (!(changed & IEEE80211_RC_BW_CHANGED))
+ return;
+
+ mutex_lock(&wl->mutex);
+
+ /* sanity */
+ if (WARN_ON(wlvif->bss_type != BSS_TYPE_STA_BSS))
+ goto out;
+
+ /* ignore the change before association */
+ if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
+ goto out;
+
+ /*
+ * If we started out as wide, we can change the operation mode. If we
+ * thought this was a 20mhz AP, we have to reconnect
+ */
+ if (wlvif->sta.role_chan_type == NL80211_CHAN_HT40MINUS ||
+ wlvif->sta.role_chan_type == NL80211_CHAN_HT40PLUS)
+ wl18xx_acx_peer_ht_operation_mode(wl, wlvif->sta.hlid, wide);
+ else
+ ieee80211_connection_loss(wl12xx_wlvif_to_vif(wlvif));
+
+out:
+ mutex_unlock(&wl->mutex);
+}
+
+
static int wl18xx_setup(struct wl1271 *wl);
static struct wlcore_ops wl18xx_ops = {
@@ -1354,6 +1391,7 @@ static struct wlcore_ops wl18xx_ops = {
.set_key = wl18xx_set_key,
.channel_switch = wl18xx_cmd_channel_switch,
.pre_pkt_send = wl18xx_pre_pkt_send,
+ .sta_rc_update = wl18xx_sta_rc_update,
};
/* HT cap appropriate for wide channels in 2Ghz */
diff --git a/drivers/net/wireless/ti/wlcore/cmd.c b/drivers/net/wireless/ti/wlcore/cmd.c
index 599c006..65f071d 100644
--- a/drivers/net/wireless/ti/wlcore/cmd.c
+++ b/drivers/net/wireless/ti/wlcore/cmd.c
@@ -480,6 +480,7 @@ int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
goto err_hlid;
}
+ wlvif->sta.role_chan_type = wlvif->channel_type;
goto out_free;
err_hlid:
diff --git a/drivers/net/wireless/ti/wlcore/hw_ops.h b/drivers/net/wireless/ti/wlcore/hw_ops.h
index 2673d78..0e0b656 100644
--- a/drivers/net/wireless/ti/wlcore/hw_ops.h
+++ b/drivers/net/wireless/ti/wlcore/hw_ops.h
@@ -201,4 +201,12 @@ wlcore_hw_pre_pkt_send(struct wl1271 *wl, u32 buf_offset, u32 last_len)
return buf_offset;
}
+static inline void
+wlcore_hw_sta_rc_update(struct wl1271 *wl, struct wl12xx_vif *wlvif,
+ struct ieee80211_sta *sta, u32 changed)
+{
+ if (wl->ops->sta_rc_update)
+ wl->ops->sta_rc_update(wl, wlvif, sta, changed);
+}
+
#endif
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 0ed7f10..475d0cd 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -4948,6 +4948,17 @@ static int wlcore_op_cancel_remain_on_channel(struct ieee80211_hw *hw)
return 0;
}
+static void wlcore_op_sta_rc_update(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ u32 changed)
+{
+ struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
+ struct wl1271 *wl = hw->priv;
+
+ wlcore_hw_sta_rc_update(wl, wlvif, sta, changed);
+}
+
static bool wl1271_tx_frames_pending(struct ieee80211_hw *hw)
{
struct wl1271 *wl = hw->priv;
@@ -5146,6 +5157,7 @@ static const struct ieee80211_ops wl1271_ops = {
.change_chanctx = wlcore_op_change_chanctx,
.assign_vif_chanctx = wlcore_op_assign_vif_chanctx,
.unassign_vif_chanctx = wlcore_op_unassign_vif_chanctx,
+ .sta_rc_update = wlcore_op_sta_rc_update,
CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
};
diff --git a/drivers/net/wireless/ti/wlcore/wlcore.h b/drivers/net/wireless/ti/wlcore/wlcore.h
index b315897..037c56e 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore.h
@@ -101,6 +101,8 @@ struct wlcore_ops {
struct wl12xx_vif *wlvif,
struct ieee80211_channel_switch *ch_switch);
u32 (*pre_pkt_send)(struct wl1271 *wl, u32 buf_offset, u32 last_len);
+ void (*sta_rc_update)(struct wl1271 *wl, struct wl12xx_vif *wlvif,
+ struct ieee80211_sta *sta, u32 changed);
};
enum wlcore_partitions {
diff --git a/drivers/net/wireless/ti/wlcore/wlcore_i.h b/drivers/net/wireless/ti/wlcore/wlcore_i.h
index 6be1e8e..e3a77aa 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore_i.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore_i.h
@@ -341,6 +341,8 @@ struct wl12xx_vif {
u8 klv_template_id;
bool qos;
+ /* channel type we started the STA role with */
+ enum nl80211_channel_type role_chan_type;
} sta;
struct {
u8 global_hlid;
--
1.7.9.5
--
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