1 /* SPDX-License-Identifier: ISC */
2 /*
3  * Copyright (C) 2022 MediaTek Inc.
4  */
5 
6 #ifndef __MT7996_H
7 #define __MT7996_H
8 
9 #include <linux/interrupt.h>
10 #include <linux/ktime.h>
11 #include "../mt76_connac.h"
12 #include "regs.h"
13 
14 #define MT7996_MAX_INTERFACES		19	/* per-band */
15 #define MT7996_MAX_WMM_SETS		4
16 #define MT7996_WTBL_RESERVED		(mt7996_wtbl_size(dev) - 1)
17 #define MT7996_WTBL_STA			(MT7996_WTBL_RESERVED - \
18 					 mt7996_max_interface_num(dev))
19 
20 #define MT7996_WATCHDOG_TIME		(HZ / 10)
21 #define MT7996_RESET_TIMEOUT		(30 * HZ)
22 
23 #define MT7996_TX_RING_SIZE		2048
24 #define MT7996_TX_MCU_RING_SIZE		256
25 #define MT7996_TX_FWDL_RING_SIZE	128
26 
27 #define MT7996_RX_RING_SIZE		1536
28 #define MT7996_RX_MCU_RING_SIZE		512
29 
30 #define MT7996_FIRMWARE_WA		"mediatek/mt7996/mt7996_wa.bin"
31 #define MT7996_FIRMWARE_WM		"mediatek/mt7996/mt7996_wm.bin"
32 #define MT7996_ROM_PATCH		"mediatek/mt7996/mt7996_rom_patch.bin"
33 
34 #define MT7996_EEPROM_DEFAULT		"mediatek/mt7996/mt7996_eeprom.bin"
35 #define MT7996_EEPROM_SIZE		7680
36 #define MT7996_EEPROM_BLOCK_SIZE	16
37 #define MT7996_TOKEN_SIZE		8192
38 
39 #define MT7996_CFEND_RATE_DEFAULT	0x49	/* OFDM 24M */
40 #define MT7996_CFEND_RATE_11B		0x03	/* 11B LP, 11M */
41 
42 #define MT7996_MAX_TWT_AGRT		16
43 #define MT7996_MAX_STA_TWT_AGRT		8
44 #define MT7996_MAX_QUEUE		(__MT_RXQ_MAX +	__MT_MCUQ_MAX + 3)
45 
46 struct mt7996_vif;
47 struct mt7996_sta;
48 struct mt7996_dfs_pulse;
49 struct mt7996_dfs_pattern;
50 
51 enum mt7996_txq_id {
52 	MT7996_TXQ_FWDL = 16,
53 	MT7996_TXQ_MCU_WM,
54 	MT7996_TXQ_BAND0,
55 	MT7996_TXQ_BAND1,
56 	MT7996_TXQ_MCU_WA,
57 	MT7996_TXQ_BAND2,
58 };
59 
60 enum mt7996_rxq_id {
61 	MT7996_RXQ_MCU_WM = 0,
62 	MT7996_RXQ_MCU_WA,
63 	MT7996_RXQ_MCU_WA_MAIN = 2,
64 	MT7996_RXQ_MCU_WA_EXT = 2,/* unused */
65 	MT7996_RXQ_MCU_WA_TRI = 3,
66 	MT7996_RXQ_BAND0 = 4,
67 	MT7996_RXQ_BAND1 = 4,/* unused */
68 	MT7996_RXQ_BAND2 = 5,
69 };
70 
71 struct mt7996_twt_flow {
72 	struct list_head list;
73 	u64 start_tsf;
74 	u64 tsf;
75 	u32 duration;
76 	u16 wcid;
77 	__le16 mantissa;
78 	u8 exp;
79 	u8 table_id;
80 	u8 id;
81 	u8 protection:1;
82 	u8 flowtype:1;
83 	u8 trigger:1;
84 	u8 sched:1;
85 };
86 
87 DECLARE_EWMA(avg_signal, 10, 8)
88 
89 struct mt7996_sta {
90 	struct mt76_wcid wcid; /* must be first */
91 
92 	struct mt7996_vif *vif;
93 
94 	struct list_head poll_list;
95 	struct list_head rc_list;
96 	u32 airtime_ac[8];
97 
98 	int ack_signal;
99 	struct ewma_avg_signal avg_ack_signal;
100 
101 	unsigned long changed;
102 	unsigned long jiffies;
103 	unsigned long ampdu_state;
104 
105 	struct mt76_sta_stats stats;
106 
107 	struct mt76_connac_sta_key_conf bip;
108 
109 	struct {
110 		u8 flowid_mask;
111 		struct mt7996_twt_flow flow[MT7996_MAX_STA_TWT_AGRT];
112 	} twt;
113 };
114 
115 struct mt7996_vif_cap {
116 	bool ht_ldpc:1;
117 	bool vht_ldpc:1;
118 	bool he_ldpc:1;
119 	bool vht_su_ebfer:1;
120 	bool vht_su_ebfee:1;
121 	bool vht_mu_ebfer:1;
122 	bool vht_mu_ebfee:1;
123 	bool he_su_ebfer:1;
124 	bool he_su_ebfee:1;
125 	bool he_mu_ebfer:1;
126 	bool eht_su_ebfer:1;
127 	bool eht_su_ebfee:1;
128 };
129 
130 struct mt7996_vif {
131 	struct mt76_vif mt76; /* must be first */
132 
133 	struct mt7996_vif_cap cap;
134 	struct mt7996_sta sta;
135 	struct mt7996_phy *phy;
136 
137 	struct ieee80211_tx_queue_params queue_params[IEEE80211_NUM_ACS];
138 	struct cfg80211_bitrate_mask bitrate_mask;
139 };
140 
141 /* per-phy stats.  */
142 struct mib_stats {
143 	u32 ack_fail_cnt;
144 	u32 fcs_err_cnt;
145 	u32 rts_cnt;
146 	u32 rts_retries_cnt;
147 	u32 ba_miss_cnt;
148 	u32 tx_mu_bf_cnt;
149 	u32 tx_mu_mpdu_cnt;
150 	u32 tx_mu_acked_mpdu_cnt;
151 	u32 tx_su_acked_mpdu_cnt;
152 	u32 tx_bf_ibf_ppdu_cnt;
153 	u32 tx_bf_ebf_ppdu_cnt;
154 
155 	u32 tx_bf_rx_fb_all_cnt;
156 	u32 tx_bf_rx_fb_eht_cnt;
157 	u32 tx_bf_rx_fb_he_cnt;
158 	u32 tx_bf_rx_fb_vht_cnt;
159 	u32 tx_bf_rx_fb_ht_cnt;
160 
161 	u32 tx_bf_rx_fb_bw; /* value of last sample, not cumulative */
162 	u32 tx_bf_rx_fb_nc_cnt;
163 	u32 tx_bf_rx_fb_nr_cnt;
164 	u32 tx_bf_fb_cpl_cnt;
165 	u32 tx_bf_fb_trig_cnt;
166 
167 	u32 tx_ampdu_cnt;
168 	u32 tx_stop_q_empty_cnt;
169 	u32 tx_mpdu_attempts_cnt;
170 	u32 tx_mpdu_success_cnt;
171 	/* BF counter is PPDU-based, so remove MPDU-based BF counter */
172 
173 	u32 tx_rwp_fail_cnt;
174 	u32 tx_rwp_need_cnt;
175 
176 	/* rx stats */
177 	u32 rx_fifo_full_cnt;
178 	u32 channel_idle_cnt;
179 	u32 rx_vector_mismatch_cnt;
180 	u32 rx_delimiter_fail_cnt;
181 	u32 rx_len_mismatch_cnt;
182 	u32 rx_mpdu_cnt;
183 	u32 rx_ampdu_cnt;
184 	u32 rx_ampdu_bytes_cnt;
185 	u32 rx_ampdu_valid_subframe_cnt;
186 	u32 rx_ampdu_valid_subframe_bytes_cnt;
187 	u32 rx_pfdrop_cnt;
188 	u32 rx_vec_queue_overflow_drop_cnt;
189 	u32 rx_ba_cnt;
190 
191 	u32 tx_amsdu[8];
192 	u32 tx_amsdu_cnt;
193 };
194 
195 struct mt7996_hif {
196 	struct list_head list;
197 
198 	struct device *dev;
199 	void __iomem *regs;
200 	int irq;
201 };
202 
203 struct mt7996_phy {
204 	struct mt76_phy *mt76;
205 	struct mt7996_dev *dev;
206 
207 	struct ieee80211_sband_iftype_data iftype[NUM_NL80211_BANDS][NUM_NL80211_IFTYPES];
208 
209 	struct ieee80211_vif *monitor_vif;
210 
211 	u32 rxfilter;
212 	u64 omac_mask;
213 
214 	u16 noise;
215 
216 	s16 coverage_class;
217 	u8 slottime;
218 
219 	u8 rdd_state;
220 
221 	u32 rx_ampdu_ts;
222 	u32 ampdu_ref;
223 
224 	struct mib_stats mib;
225 	struct mt76_channel_state state_ts;
226 };
227 
228 struct mt7996_dev {
229 	union { /* must be first */
230 		struct mt76_dev mt76;
231 		struct mt76_phy mphy;
232 	};
233 
234 	struct mt7996_hif *hif2;
235 	struct mt7996_reg_desc reg;
236 	u8 q_id[MT7996_MAX_QUEUE];
237 	u32 q_int_mask[MT7996_MAX_QUEUE];
238 	u32 q_wfdma_mask;
239 
240 	const struct mt76_bus_ops *bus_ops;
241 	struct tasklet_struct irq_tasklet;
242 	struct mt7996_phy phy;
243 
244 	/* monitor rx chain configured channel */
245 	struct cfg80211_chan_def rdd2_chandef;
246 	struct mt7996_phy *rdd2_phy;
247 
248 	u16 chainmask;
249 	u8 chainshift[__MT_MAX_BAND];
250 	u32 hif_idx;
251 
252 	struct work_struct init_work;
253 	struct work_struct rc_work;
254 	struct work_struct reset_work;
255 	wait_queue_head_t reset_wait;
256 	u32 reset_state;
257 
258 	struct list_head sta_rc_list;
259 	struct list_head sta_poll_list;
260 	struct list_head twt_list;
261 	spinlock_t sta_poll_lock;
262 
263 	u32 hw_pattern;
264 
265 	bool dbdc_support:1;
266 	bool tbtc_support:1;
267 	bool flash_mode:1;
268 	bool has_eht:1;
269 
270 	bool ibf;
271 	u8 fw_debug_wm;
272 	u8 fw_debug_wa;
273 	u8 fw_debug_bin;
274 	u16 fw_debug_seq;
275 
276 	struct dentry *debugfs_dir;
277 	struct rchan *relay_fwlog;
278 
279 	struct {
280 		u8 table_mask;
281 		u8 n_agrt;
282 	} twt;
283 
284 	u32 reg_l1_backup;
285 	u32 reg_l2_backup;
286 
287 	u8 wtbl_size_group;
288 };
289 
290 enum {
291 	WFDMA0 = 0x0,
292 	WFDMA1,
293 	WFDMA_EXT,
294 	__MT_WFDMA_MAX,
295 };
296 
297 enum {
298 	MT_CTX0,
299 	MT_HIF0 = 0x0,
300 
301 	MT_LMAC_AC00 = 0x0,
302 	MT_LMAC_AC01,
303 	MT_LMAC_AC02,
304 	MT_LMAC_AC03,
305 	MT_LMAC_ALTX0 = 0x10,
306 	MT_LMAC_BMC0,
307 	MT_LMAC_BCN0,
308 	MT_LMAC_PSMP0,
309 };
310 
311 enum {
312 	MT_RX_SEL0,
313 	MT_RX_SEL1,
314 	MT_RX_SEL2, /* monitor chain */
315 };
316 
317 enum mt7996_rdd_cmd {
318 	RDD_STOP,
319 	RDD_START,
320 	RDD_DET_MODE,
321 	RDD_RADAR_EMULATE,
322 	RDD_START_TXQ = 20,
323 	RDD_CAC_START = 50,
324 	RDD_CAC_END,
325 	RDD_NORMAL_START,
326 	RDD_DISABLE_DFS_CAL,
327 	RDD_PULSE_DBG,
328 	RDD_READ_PULSE,
329 	RDD_RESUME_BF,
330 	RDD_IRQ_OFF,
331 };
332 
333 static inline struct mt7996_phy *
334 mt7996_hw_phy(struct ieee80211_hw *hw)
335 {
336 	struct mt76_phy *phy = hw->priv;
337 
338 	return phy->priv;
339 }
340 
341 static inline struct mt7996_dev *
342 mt7996_hw_dev(struct ieee80211_hw *hw)
343 {
344 	struct mt76_phy *phy = hw->priv;
345 
346 	return container_of(phy->dev, struct mt7996_dev, mt76);
347 }
348 
349 static inline struct mt7996_phy *
350 __mt7996_phy(struct mt7996_dev *dev, enum mt76_band_id band)
351 {
352 	struct mt76_phy *phy = dev->mt76.phys[band];
353 
354 	if (!phy)
355 		return NULL;
356 
357 	return phy->priv;
358 }
359 
360 static inline struct mt7996_phy *
361 mt7996_phy2(struct mt7996_dev *dev)
362 {
363 	return __mt7996_phy(dev, MT_BAND1);
364 }
365 
366 static inline struct mt7996_phy *
367 mt7996_phy3(struct mt7996_dev *dev)
368 {
369 	return __mt7996_phy(dev, MT_BAND2);
370 }
371 
372 extern const struct ieee80211_ops mt7996_ops;
373 extern struct pci_driver mt7996_pci_driver;
374 extern struct pci_driver mt7996_hif_driver;
375 
376 struct mt7996_dev *mt7996_mmio_probe(struct device *pdev,
377 				     void __iomem *mem_base, u32 device_id);
378 void mt7996_wfsys_reset(struct mt7996_dev *dev);
379 irqreturn_t mt7996_irq_handler(int irq, void *dev_instance);
380 u64 __mt7996_get_tsf(struct ieee80211_hw *hw, struct mt7996_vif *mvif);
381 int mt7996_register_device(struct mt7996_dev *dev);
382 void mt7996_unregister_device(struct mt7996_dev *dev);
383 int mt7996_eeprom_init(struct mt7996_dev *dev);
384 int mt7996_eeprom_parse_hw_cap(struct mt7996_dev *dev, struct mt7996_phy *phy);
385 int mt7996_eeprom_get_target_power(struct mt7996_dev *dev,
386 				   struct ieee80211_channel *chan);
387 s8 mt7996_eeprom_get_power_delta(struct mt7996_dev *dev, int band);
388 int mt7996_dma_init(struct mt7996_dev *dev);
389 void mt7996_dma_prefetch(struct mt7996_dev *dev);
390 void mt7996_dma_cleanup(struct mt7996_dev *dev);
391 int mt7996_mcu_init(struct mt7996_dev *dev);
392 int mt7996_mcu_twt_agrt_update(struct mt7996_dev *dev,
393 			       struct mt7996_vif *mvif,
394 			       struct mt7996_twt_flow *flow,
395 			       int cmd);
396 int mt7996_mcu_add_dev_info(struct mt7996_phy *phy,
397 			    struct ieee80211_vif *vif, bool enable);
398 int mt7996_mcu_add_bss_info(struct mt7996_phy *phy,
399 			    struct ieee80211_vif *vif, int enable);
400 int mt7996_mcu_add_sta(struct mt7996_dev *dev, struct ieee80211_vif *vif,
401 		       struct ieee80211_sta *sta, bool enable);
402 int mt7996_mcu_add_tx_ba(struct mt7996_dev *dev,
403 			 struct ieee80211_ampdu_params *params,
404 			 bool add);
405 int mt7996_mcu_add_rx_ba(struct mt7996_dev *dev,
406 			 struct ieee80211_ampdu_params *params,
407 			 bool add);
408 int mt7996_mcu_update_bss_color(struct mt7996_dev *dev, struct ieee80211_vif *vif,
409 				struct cfg80211_he_bss_color *he_bss_color);
410 int mt7996_mcu_add_beacon(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
411 			  int enable);
412 int mt7996_mcu_beacon_inband_discov(struct mt7996_dev *dev,
413 				    struct ieee80211_vif *vif, u32 changed);
414 int mt7996_mcu_add_obss_spr(struct mt7996_phy *phy, struct ieee80211_vif *vif,
415 			    struct ieee80211_he_obss_pd *he_obss_pd);
416 int mt7996_mcu_add_rate_ctrl(struct mt7996_dev *dev, struct ieee80211_vif *vif,
417 			     struct ieee80211_sta *sta, bool changed);
418 int mt7996_set_channel(struct mt7996_phy *phy);
419 int mt7996_mcu_set_chan_info(struct mt7996_phy *phy, u16 tag);
420 int mt7996_mcu_set_tx(struct mt7996_dev *dev, struct ieee80211_vif *vif);
421 int mt7996_mcu_set_fixed_rate_ctrl(struct mt7996_dev *dev,
422 				   void *data, u16 version);
423 int mt7996_mcu_set_eeprom(struct mt7996_dev *dev);
424 int mt7996_mcu_get_eeprom(struct mt7996_dev *dev, u32 offset);
425 int mt7996_mcu_get_eeprom_free_block(struct mt7996_dev *dev, u8 *block_num);
426 int mt7996_mcu_get_chip_config(struct mt7996_dev *dev, u32 *cap);
427 int mt7996_mcu_set_ser(struct mt7996_dev *dev, u8 action, u8 set, u8 band);
428 int mt7996_mcu_set_txbf(struct mt7996_dev *dev, u8 action);
429 int mt7996_mcu_set_fcc5_lpn(struct mt7996_dev *dev, int val);
430 int mt7996_mcu_set_pulse_th(struct mt7996_dev *dev,
431 			    const struct mt7996_dfs_pulse *pulse);
432 int mt7996_mcu_set_radar_th(struct mt7996_dev *dev, int index,
433 			    const struct mt7996_dfs_pattern *pattern);
434 int mt7996_mcu_set_radio_en(struct mt7996_phy *phy, bool enable);
435 void mt7996_mcu_set_pm(void *priv, u8 *mac, struct ieee80211_vif *vif);
436 int mt7996_mcu_set_rts_thresh(struct mt7996_phy *phy, u32 val);
437 int mt7996_mcu_get_chan_mib_info(struct mt7996_phy *phy, bool chan_switch);
438 int mt7996_mcu_rdd_cmd(struct mt7996_dev *dev, int cmd, u8 index,
439 		       u8 rx_sel, u8 val);
440 int mt7996_mcu_rdd_background_enable(struct mt7996_phy *phy,
441 				     struct cfg80211_chan_def *chandef);
442 int mt7996_mcu_rf_regval(struct mt7996_dev *dev, u32 regidx, u32 *val, bool set);
443 int mt7996_mcu_set_hdr_trans(struct mt7996_dev *dev, bool hdr_trans);
444 int mt7996_mcu_set_rro(struct mt7996_dev *dev, u16 tag, u8 val);
445 int mt7996_mcu_wa_cmd(struct mt7996_dev *dev, int cmd, u32 a1, u32 a2, u32 a3);
446 int mt7996_mcu_fw_log_2_host(struct mt7996_dev *dev, u8 type, u8 ctrl);
447 int mt7996_mcu_fw_dbg_ctrl(struct mt7996_dev *dev, u32 module, u8 level);
448 void mt7996_mcu_rx_event(struct mt7996_dev *dev, struct sk_buff *skb);
449 void mt7996_mcu_exit(struct mt7996_dev *dev);
450 
451 static inline u8 mt7996_max_interface_num(struct mt7996_dev *dev)
452 {
453 	return MT7996_MAX_INTERFACES * (1 + dev->dbdc_support + dev->tbtc_support);
454 }
455 
456 static inline u16 mt7996_wtbl_size(struct mt7996_dev *dev)
457 {
458 	return (dev->wtbl_size_group << 8) + 64;
459 }
460 
461 void mt7996_dual_hif_set_irq_mask(struct mt7996_dev *dev, bool write_reg,
462 				  u32 clear, u32 set);
463 
464 static inline void mt7996_irq_enable(struct mt7996_dev *dev, u32 mask)
465 {
466 	if (dev->hif2)
467 		mt7996_dual_hif_set_irq_mask(dev, false, 0, mask);
468 	else
469 		mt76_set_irq_mask(&dev->mt76, 0, 0, mask);
470 
471 	tasklet_schedule(&dev->irq_tasklet);
472 }
473 
474 static inline void mt7996_irq_disable(struct mt7996_dev *dev, u32 mask)
475 {
476 	if (dev->hif2)
477 		mt7996_dual_hif_set_irq_mask(dev, true, mask, 0);
478 	else
479 		mt76_set_irq_mask(&dev->mt76, MT_INT_MASK_CSR, mask, 0);
480 }
481 
482 u32 mt7996_mac_wtbl_lmac_addr(struct mt7996_dev *dev, u16 wcid, u8 dw);
483 bool mt7996_mac_wtbl_update(struct mt7996_dev *dev, int idx, u32 mask);
484 void mt7996_mac_reset_counters(struct mt7996_phy *phy);
485 void mt7996_mac_cca_stats_reset(struct mt7996_phy *phy);
486 void mt7996_mac_enable_nf(struct mt7996_dev *dev, u8 band);
487 void mt7996_mac_enable_rtscts(struct mt7996_dev *dev,
488 			      struct ieee80211_vif *vif, bool enable);
489 void mt7996_mac_write_txwi(struct mt7996_dev *dev, __le32 *txwi,
490 			   struct sk_buff *skb, struct mt76_wcid *wcid, int pid,
491 			   struct ieee80211_key_conf *key, u32 changed);
492 void mt7996_mac_set_timing(struct mt7996_phy *phy);
493 int mt7996_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
494 		       struct ieee80211_sta *sta);
495 void mt7996_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
496 			   struct ieee80211_sta *sta);
497 void mt7996_mac_work(struct work_struct *work);
498 void mt7996_mac_reset_work(struct work_struct *work);
499 void mt7996_mac_sta_rc_work(struct work_struct *work);
500 void mt7996_mac_update_stats(struct mt7996_phy *phy);
501 void mt7996_mac_twt_teardown_flow(struct mt7996_dev *dev,
502 				  struct mt7996_sta *msta,
503 				  u8 flowid);
504 void mt7996_mac_add_twt_setup(struct ieee80211_hw *hw,
505 			      struct ieee80211_sta *sta,
506 			      struct ieee80211_twt_setup *twt);
507 int mt7996_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
508 			  enum mt76_txq_id qid, struct mt76_wcid *wcid,
509 			  struct ieee80211_sta *sta,
510 			  struct mt76_tx_info *tx_info);
511 void mt7996_tx_token_put(struct mt7996_dev *dev);
512 void mt7996_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
513 			 struct sk_buff *skb, u32 *info);
514 bool mt7996_rx_check(struct mt76_dev *mdev, void *data, int len);
515 void mt7996_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps);
516 void mt7996_stats_work(struct work_struct *work);
517 int mt76_dfs_start_rdd(struct mt7996_dev *dev, bool force);
518 int mt7996_dfs_init_radar_detector(struct mt7996_phy *phy);
519 void mt7996_set_stream_he_eht_caps(struct mt7996_phy *phy);
520 void mt7996_set_stream_vht_txbf_caps(struct mt7996_phy *phy);
521 void mt7996_update_channel(struct mt76_phy *mphy);
522 int mt7996_init_debugfs(struct mt7996_phy *phy);
523 void mt7996_debugfs_rx_fw_monitor(struct mt7996_dev *dev, const void *data, int len);
524 bool mt7996_debugfs_rx_log(struct mt7996_dev *dev, const void *data, int len);
525 int mt7996_mcu_add_key(struct mt76_dev *dev, struct ieee80211_vif *vif,
526 		       struct mt76_connac_sta_key_conf *sta_key_conf,
527 		       struct ieee80211_key_conf *key, int mcu_cmd,
528 		       struct mt76_wcid *wcid, enum set_key_cmd cmd);
529 int mt7996_mcu_wtbl_update_hdr_trans(struct mt7996_dev *dev,
530 				     struct ieee80211_vif *vif,
531 				     struct ieee80211_sta *sta);
532 #ifdef CONFIG_MAC80211_DEBUGFS
533 void mt7996_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
534 			    struct ieee80211_sta *sta, struct dentry *dir);
535 #endif
536 
537 #endif
538