Merge branch 'for-linville' of git://github.com/lucacoelho/wl12xx

drivers/net/wireless/wl12xx/acx.c

@@ -777,7 +777,23 @@ int wl1271_acx_sta_rate_policies(struct wl1271 *wl)
 	acx->rate_policy.long_retry_limit = c->long_retry_limit;
 	acx->rate_policy.aflags = c->aflags;
 
+	ret = wl1271_cmd_configure(wl, ACX_RATE_POLICY, acx, sizeof(*acx));
+	if (ret < 0) {
+		wl1271_warning("Setting of rate policies failed: %d", ret);
+		goto out;
+	}
 
+	/*
+	 * configure one rate class for basic p2p operations.
+	 * (p2p packets should always go out with OFDM rates, even
+	 * if we are currently connected to 11b AP)
+	 */
+	acx->rate_policy_idx = cpu_to_le32(ACX_TX_BASIC_RATE_P2P);
+	acx->rate_policy.enabled_rates =
+				cpu_to_le32(CONF_TX_RATE_MASK_BASIC_P2P);
+	acx->rate_policy.short_retry_limit = c->short_retry_limit;
+	acx->rate_policy.long_retry_limit = c->long_retry_limit;
+	acx->rate_policy.aflags = c->aflags;
 
 	ret = wl1271_cmd_configure(wl, ACX_RATE_POLICY, acx, sizeof(*acx));
 	if (ret < 0) {

drivers/net/wireless/wl12xx/acx.h

@@ -656,6 +656,7 @@ struct acx_rate_class {
 
 #define ACX_TX_BASIC_RATE      0
 #define ACX_TX_AP_FULL_RATE    1
+#define ACX_TX_BASIC_RATE_P2P  2
 #define ACX_TX_AP_MODE_MGMT_RATE 4
 #define ACX_TX_AP_MODE_BCST_RATE 5
 struct acx_rate_policy {

drivers/net/wireless/wl12xx/boot.c

@@ -503,7 +503,8 @@ static int wl1271_boot_run_firmware(struct wl1271 *wl)
 		BA_SESSION_RX_CONSTRAINT_EVENT_ID |
 		REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID |
 		INACTIVE_STA_EVENT_ID |
-		MAX_TX_RETRY_EVENT_ID;
+		MAX_TX_RETRY_EVENT_ID |
+		CHANNEL_SWITCH_COMPLETE_EVENT_ID;
 
 	ret = wl1271_event_unmask(wl);
 	if (ret < 0) {
@@ -769,9 +770,6 @@ int wl1271_load_firmware(struct wl1271 *wl)
 		clk |= (wl->ref_clock << 1) << 4;
 	}
 
-	if (wl->quirks & WL12XX_QUIRK_LPD_MODE)
-		clk |= SCRATCH_ENABLE_LPD;
-
 	wl1271_write32(wl, DRPW_SCRATCH_START, clk);
 
 	wl1271_set_partition(wl, &part_table[PART_WORK]);

drivers/net/wireless/wl12xx/cmd.c

@@ -134,11 +134,6 @@ int wl1271_cmd_general_parms(struct wl1271 *wl)
 	/* Override the REF CLK from the NVS with the one from platform data */
 	gen_parms->general_params.ref_clock = wl->ref_clock;
 
-	/* LPD mode enable (bits 6-7) in WL1271 AP mode only */
-	if (wl->quirks & WL12XX_QUIRK_LPD_MODE)
-		gen_parms->general_params.general_settings |=
-			GENERAL_SETTINGS_DRPW_LPD;
-
 	ret = wl1271_cmd_test(wl, gen_parms, sizeof(*gen_parms), answer);
 	if (ret < 0) {
 		wl1271_warning("CMD_INI_FILE_GENERAL_PARAM failed");
@@ -1700,3 +1695,61 @@ int wl12xx_croc(struct wl1271 *wl, u8 role_id)
 out:
 	return ret;
 }
+
+int wl12xx_cmd_channel_switch(struct wl1271 *wl,
+			      struct ieee80211_channel_switch *ch_switch)
+{
+	struct wl12xx_cmd_channel_switch *cmd;
+	int ret;
+
+	wl1271_debug(DEBUG_ACX, "cmd channel switch");
+
+	cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+	if (!cmd) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	cmd->channel = ch_switch->channel->hw_value;
+	cmd->switch_time = ch_switch->count;
+	cmd->tx_suspend = ch_switch->block_tx;
+	cmd->flush = 0; /* this value is ignored by the FW */
+
+	ret = wl1271_cmd_send(wl, CMD_CHANNEL_SWITCH, cmd, sizeof(*cmd), 0);
+	if (ret < 0) {
+		wl1271_error("failed to send channel switch command");
+		goto out_free;
+	}
+
+out_free:
+	kfree(cmd);
+
+out:
+	return ret;
+}
+
+int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl)
+{
+	struct wl12xx_cmd_stop_channel_switch *cmd;
+	int ret;
+
+	wl1271_debug(DEBUG_ACX, "cmd stop channel switch");
+
+	cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+	if (!cmd) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0);
+	if (ret < 0) {
+		wl1271_error("failed to stop channel switch command");
+		goto out_free;
+	}
+
+out_free:
+	kfree(cmd);
+
+out:
+	return ret;
+}

drivers/net/wireless/wl12xx/cmd.h

@@ -79,6 +79,9 @@ int wl12xx_cmd_remove_peer(struct wl1271 *wl, u8 hlid);
 int wl12xx_cmd_config_fwlog(struct wl1271 *wl);
 int wl12xx_cmd_start_fwlog(struct wl1271 *wl);
 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl);
+int wl12xx_cmd_channel_switch(struct wl1271 *wl,
+			      struct ieee80211_channel_switch *ch_switch);
+int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl);
 
 enum wl1271_commands {
 	CMD_INTERROGATE     = 1,    /*use this to read information elements*/
@@ -677,4 +680,21 @@ struct wl12xx_cmd_stop_fwlog {
 	struct wl1271_cmd_header header;
 } __packed;
 
+struct wl12xx_cmd_channel_switch {
+	struct wl1271_cmd_header header;
+
+	/* The new serving channel */
+	u8 channel;
+	/* Relative time of the serving channel switch in TBTT units */
+	u8 switch_time;
+	/* 1: Suspend TX till switch time; 0: Do not suspend TX */
+	u8 tx_suspend;
+	/* 1: Flush TX at switch time; 0: Do not flush */
+	u8 flush;
+} __packed;
+
+struct wl12xx_cmd_stop_channel_switch {
+	struct wl1271_cmd_header header;
+} __packed;
+
 #endif /* __WL1271_CMD_H__ */

drivers/net/wireless/wl12xx/conf.h

@@ -416,13 +416,17 @@ struct conf_rx_settings {
 	u8 queue_type;
 };
 
-#define CONF_TX_MAX_RATE_CLASSES       8
+#define CONF_TX_MAX_RATE_CLASSES       10
 
 #define CONF_TX_RATE_MASK_UNSPECIFIED  0
 #define CONF_TX_RATE_MASK_BASIC        (CONF_HW_BIT_RATE_1MBPS | \
 					CONF_HW_BIT_RATE_2MBPS)
 #define CONF_TX_RATE_RETRY_LIMIT       10
 
+/* basic rates for p2p operations (probe req/resp, etc.) */
+#define CONF_TX_RATE_MASK_BASIC_P2P    (CONF_HW_BIT_RATE_6MBPS | \
+	CONF_HW_BIT_RATE_12MBPS | CONF_HW_BIT_RATE_24MBPS)
+
 /*
  * Rates supported for data packets when operating as AP. Note the absence
  * of the 22Mbps rate. There is a FW limitation on 12 rates so we must drop

drivers/net/wireless/wl12xx/event.c

@@ -300,6 +300,21 @@ static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox)
 			wl1271_stop_ba_event(wl);
 	}
 
+	if ((vector & CHANNEL_SWITCH_COMPLETE_EVENT_ID) && !is_ap) {
+		wl1271_debug(DEBUG_EVENT, "CHANNEL_SWITCH_COMPLETE_EVENT_ID. "
+					  "status = 0x%x",
+					  mbox->channel_switch_status);
+		/*
+		 * That event uses for two cases:
+		 * 1) channel switch complete with status=0
+		 * 2) channel switch failed status=1
+		 */
+		if (test_and_clear_bit(WL1271_FLAG_CS_PROGRESS, &wl->flags) &&
+		    (wl->vif))
+			ieee80211_chswitch_done(wl->vif,
+				mbox->channel_switch_status ? false : true);
+	}
+
 	if ((vector & DUMMY_PACKET_EVENT_ID)) {
 		wl1271_debug(DEBUG_EVENT, "DUMMY_PACKET_ID_EVENT_ID");
 		if (wl->vif)

drivers/net/wireless/wl12xx/main.c

@@ -1333,14 +1333,6 @@ static int wl1271_chip_wakeup(struct wl1271 *wl)
 		wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1271 PG20)",
 			     wl->chip.id);
 
-		/*
-		 * 'end-of-transaction flag' and 'LPD mode flag'
-		 * should be set in wl127x AP mode only
-		 */
-		if (wl->bss_type == BSS_TYPE_AP_BSS)
-			wl->quirks |= (WL12XX_QUIRK_END_OF_TRANSACTION |
-				       WL12XX_QUIRK_LPD_MODE);
-
 		ret = wl1271_setup(wl);
 		if (ret < 0)
 			goto out;
@@ -2222,6 +2214,11 @@ static int wl1271_unjoin(struct wl1271 *wl)
 {
 	int ret;
 
+	if (test_and_clear_bit(WL1271_FLAG_CS_PROGRESS, &wl->flags)) {
+		wl12xx_cmd_stop_channel_switch(wl);
+		ieee80211_chswitch_done(wl->vif, false);
+	}
+
 	/* to stop listening to a channel, we disconnect */
 	ret = wl12xx_cmd_role_stop_sta(wl);
 	if (ret < 0)
@@ -4130,6 +4127,37 @@ static int wl12xx_set_bitrate_mask(struct ieee80211_hw *hw,
 	return 0;
 }
 
+static void wl12xx_op_channel_switch(struct ieee80211_hw *hw,
+				     struct ieee80211_channel_switch *ch_switch)
+{
+	struct wl1271 *wl = hw->priv;
+	int ret;
+
+	wl1271_debug(DEBUG_MAC80211, "mac80211 channel switch");
+
+	mutex_lock(&wl->mutex);
+
+	if (unlikely(wl->state == WL1271_STATE_OFF)) {
+		mutex_unlock(&wl->mutex);
+		ieee80211_chswitch_done(wl->vif, false);
+		return;
+	}
+
+	ret = wl1271_ps_elp_wakeup(wl);
+	if (ret < 0)
+		goto out;
+
+	ret = wl12xx_cmd_channel_switch(wl, ch_switch);
+
+	if (!ret)
+		set_bit(WL1271_FLAG_CS_PROGRESS, &wl->flags);
+
+	wl1271_ps_elp_sleep(wl);
+
+out:
+	mutex_unlock(&wl->mutex);
+}
+
 static bool wl1271_tx_frames_pending(struct ieee80211_hw *hw)
 {
 	struct wl1271 *wl = hw->priv;
@@ -4406,6 +4434,7 @@ static const struct ieee80211_ops wl1271_ops = {
 	.ampdu_action = wl1271_op_ampdu_action,
 	.tx_frames_pending = wl1271_tx_frames_pending,
 	.set_bitrate_mask = wl12xx_set_bitrate_mask,
+	.channel_switch = wl12xx_op_channel_switch,
 	CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
 };
 
@@ -4679,6 +4708,9 @@ int wl1271_init_ieee80211(struct wl1271 *wl)
 	wl->hw->wiphy->max_scan_ie_len = WL1271_CMD_TEMPL_DFLT_SIZE -
 			sizeof(struct ieee80211_header);
 
+	wl->hw->wiphy->max_sched_scan_ie_len = WL1271_CMD_TEMPL_DFLT_SIZE -
+		sizeof(struct ieee80211_header);
+
 	wl->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
 
 	/* make sure all our channels fit in the scanned_ch bitmask */

drivers/net/wireless/wl12xx/wl12xx.h

@@ -348,6 +348,7 @@ enum wl12xx_flags {
 	WL1271_FLAG_SOFT_GEMINI,
 	WL1271_FLAG_RX_STREAMING_STARTED,
 	WL1271_FLAG_RECOVERY_IN_PROGRESS,
+	WL1271_FLAG_CS_PROGRESS,
 };
 
 struct wl1271_link {
@@ -671,12 +672,6 @@ size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen);
 /* WL128X requires aggregated packets to be aligned to the SDIO block size */
 #define WL12XX_QUIRK_BLOCKSIZE_ALIGNMENT	BIT(2)
 
-/*
- * WL127X AP mode requires Low Power DRPw (LPD) enable to reduce power
- * consumption
- */
-#define WL12XX_QUIRK_LPD_MODE                   BIT(3)
-
 /* Older firmwares did not implement the FW logger over bus feature */
 #define WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED	BIT(4)