xref: /linux/drivers/net/wireless/mediatek/mt76/mt792x.h (revision 91a4855d6c03e770e42f17c798a36a3c46e63de2)
1 /* SPDX-License-Identifier: BSD-3-Clause-Clear */
2 /* Copyright (C) 2023 MediaTek Inc. */
3 
4 #ifndef __MT792X_H
5 #define __MT792X_H
6 
7 #include <linux/interrupt.h>
8 #include <linux/ktime.h>
9 
10 #include "mt76_connac_mcu.h"
11 #include "mt792x_regs.h"
12 #include "mt792x_acpi_sar.h"
13 
14 #define MT792x_PM_TIMEOUT	(HZ / 12)
15 #define MT792x_HW_SCAN_TIMEOUT	(HZ / 10)
16 
17 #define MT792x_MAX_INTERFACES	4
18 #define MT792x_WTBL_SIZE	20
19 #define MT792x_WTBL_RESERVED	(MT792x_WTBL_SIZE - 1)
20 #define MT792x_WTBL_STA		(MT792x_WTBL_RESERVED - MT792x_MAX_INTERFACES)
21 
22 #define MT792x_CFEND_RATE_DEFAULT	0x49	/* OFDM 24M */
23 #define MT792x_CFEND_RATE_11B		0x03	/* 11B LP, 11M */
24 
25 #define MT792x_FW_TAG_FEATURE	4
26 #define MT792x_FW_CAP_CNM	BIT(7)
27 
28 #define MT792x_CHIP_CAP_CLC_EVT_EN BIT(0)
29 #define MT792x_CHIP_CAP_RSSI_NOTIFY_EVT_EN BIT(1)
30 #define MT792x_CHIP_CAP_WF_RF_PIN_CTRL_EVT_EN BIT(3)
31 #define MT792x_CHIP_CAP_11D_EN BIT(4)
32 #define MT792x_CHIP_CAP_MLO_EN BIT(8)
33 #define MT792x_CHIP_CAP_MLO_EML_EN BIT(9)
34 
35 /* NOTE: used to map mt76_rates. idx may change if firmware expands table */
36 #define MT792x_BASIC_RATES_TBL	11
37 
38 #define MT792x_WATCHDOG_TIME	(HZ / 4)
39 
40 #define MT792x_DRV_OWN_RETRY_COUNT	10
41 #define MT792x_MCU_INIT_RETRY_COUNT	10
42 #define MT792x_WFSYS_INIT_RETRY_COUNT	2
43 
44 #define MT7902_FIRMWARE_WM	"mediatek/WIFI_RAM_CODE_MT7902_1.bin"
45 #define MT7920_FIRMWARE_WM	"mediatek/WIFI_RAM_CODE_MT7961_1a.bin"
46 #define MT7921_FIRMWARE_WM	"mediatek/WIFI_RAM_CODE_MT7961_1.bin"
47 #define MT7922_FIRMWARE_WM	"mediatek/WIFI_RAM_CODE_MT7922_1.bin"
48 #define MT7925_FIRMWARE_WM	"mediatek/mt7925/WIFI_RAM_CODE_MT7925_1_1.bin"
49 
50 #define MT7902_ROM_PATCH	"mediatek/WIFI_MT7902_patch_mcu_1_1_hdr.bin"
51 #define MT7920_ROM_PATCH	"mediatek/WIFI_MT7961_patch_mcu_1a_2_hdr.bin"
52 #define MT7921_ROM_PATCH	"mediatek/WIFI_MT7961_patch_mcu_1_2_hdr.bin"
53 #define MT7922_ROM_PATCH	"mediatek/WIFI_MT7922_patch_mcu_1_1_hdr.bin"
54 #define MT7925_ROM_PATCH	"mediatek/mt7925/WIFI_MT7925_PATCH_MCU_1_1_hdr.bin"
55 
56 #define MT792x_SDIO_HDR_TX_BYTES	GENMASK(15, 0)
57 #define MT792x_SDIO_HDR_PKT_TYPE	GENMASK(17, 16)
58 
59 struct mt792x_vif;
60 struct mt792x_sta;
61 
62 struct mt792x_realease_info {
63 	__le16 len;
64 	u8 pad_len;
65 	u8 tag;
66 } __packed;
67 
68 struct mt792x_fw_features {
69 	u8 segment;
70 	u8 data;
71 	u8 rsv[14];
72 } __packed;
73 
74 enum {
75 	MT792x_CLC_POWER,
76 	MT792x_CLC_POWER_EXT,
77 	MT792x_CLC_BE_CTRL,
78 	MT792x_CLC_MAX_NUM,
79 };
80 
81 enum mt792x_reg_power_type {
82 	MT_AP_UNSET = 0,
83 	MT_AP_DEFAULT,
84 	MT_AP_LPI,
85 	MT_AP_SP,
86 	MT_AP_VLP,
87 };
88 
89 enum mt792x_mlo_pm_state {
90 	MT792x_MLO_LINK_DISASSOC,
91 	MT792x_MLO_LINK_ASSOC,
92 	MT792x_MLO_CHANGED_PS_PENDING,
93 	MT792x_MLO_CHANGED_PS,
94 };
95 
96 DECLARE_EWMA(avg_signal, 10, 8)
97 
98 struct mt792x_link_sta {
99 	struct mt76_wcid wcid; /* must be first */
100 	struct rcu_head rcu_head;
101 
102 	u32 airtime_ac[8];
103 
104 	int ack_signal;
105 	struct ewma_avg_signal avg_ack_signal;
106 
107 	unsigned long last_txs;
108 
109 	struct mt76_connac_sta_key_conf bip;
110 
111 	struct mt792x_sta *sta;
112 
113 	struct ieee80211_link_sta *pri_link;
114 };
115 
116 struct mt792x_sta {
117 	struct mt792x_link_sta deflink; /* must be first */
118 	struct mt792x_link_sta __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS];
119 
120 	struct mt792x_vif *vif;
121 
122 	u16 valid_links;
123 	u8 deflink_id;
124 };
125 
126 DECLARE_EWMA(rssi, 10, 8);
127 
128 struct mt792x_chanctx {
129 	struct mt792x_bss_conf *bss_conf;
130 };
131 
132 struct mt792x_bss_conf {
133 	struct mt76_vif_link mt76; /* must be first */
134 	struct mt792x_vif *vif;
135 	struct ewma_rssi rssi;
136 	struct ieee80211_tx_queue_params queue_params[IEEE80211_NUM_ACS];
137 	unsigned int link_id;
138 };
139 
140 struct mt792x_vif {
141 	struct mt792x_bss_conf bss_conf; /* must be first */
142 	struct mt792x_bss_conf __rcu *link_conf[IEEE80211_MLD_MAX_NUM_LINKS];
143 
144 	struct mt792x_sta sta;
145 	struct mt792x_sta *wep_sta;
146 
147 	struct mt792x_phy *phy;
148 	u16 valid_links;
149 	u8 deflink_id;
150 	enum mt792x_mlo_pm_state mlo_pm_state;
151 
152 	struct work_struct csa_work;
153 	struct timer_list csa_timer;
154 };
155 
156 struct mt792x_phy {
157 	struct mt76_phy *mt76;
158 	struct mt792x_dev *dev;
159 
160 	struct ieee80211_sband_iftype_data iftype[NUM_NL80211_BANDS][NUM_NL80211_IFTYPES];
161 
162 	u64 omac_mask;
163 
164 	u16 noise;
165 
166 	s16 coverage_class;
167 	u8 slottime;
168 
169 	u32 rx_ampdu_ts;
170 	u32 ampdu_ref;
171 
172 	struct mt76_mib_stats mib;
173 
174 	u8 sta_work_count;
175 	u8 clc_chan_conf;
176 	enum mt792x_reg_power_type power_type;
177 
178 	struct sk_buff_head scan_event_list;
179 	struct delayed_work scan_work;
180 #ifdef CONFIG_ACPI
181 	void *acpisar;
182 #endif
183 	void *clc[MT792x_CLC_MAX_NUM];
184 	u64 chip_cap;
185 	u16 eml_cap;
186 
187 	struct work_struct roc_work;
188 	struct timer_list roc_timer;
189 	wait_queue_head_t roc_wait;
190 	u8 roc_token_id;
191 	bool roc_grant;
192 };
193 
194 struct mt792x_irq_map {
195 	u32 host_irq_enable;
196 	struct {
197 		u32 all_complete_mask;
198 		u32 mcu_complete_mask;
199 	} tx;
200 	struct {
201 		u32 data_complete_mask;
202 		u32 wm_complete_mask;
203 		u32 wm2_complete_mask;
204 	} rx;
205 };
206 
207 #define mt792x_init_reset(dev)		((dev)->hif_ops->init_reset(dev))
208 #define mt792x_dev_reset(dev)		((dev)->hif_ops->reset(dev))
209 #define mt792x_mcu_init(dev)		((dev)->hif_ops->mcu_init(dev))
210 #define __mt792x_mcu_drv_pmctrl(dev)	((dev)->hif_ops->drv_own(dev))
211 #define	__mt792x_mcu_fw_pmctrl(dev)	((dev)->hif_ops->fw_own(dev))
212 
213 struct mt792x_hif_ops {
214 	int (*init_reset)(struct mt792x_dev *dev);
215 	int (*reset)(struct mt792x_dev *dev);
216 	int (*mcu_init)(struct mt792x_dev *dev);
217 	int (*drv_own)(struct mt792x_dev *dev);
218 	int (*fw_own)(struct mt792x_dev *dev);
219 };
220 
221 struct mt792x_dev {
222 	union { /* must be first */
223 		struct mt76_dev mt76;
224 		struct mt76_phy mphy;
225 	};
226 
227 	struct mac_address macaddr_list[8];
228 
229 	const struct mt76_bus_ops *bus_ops;
230 	struct mt792x_phy phy;
231 
232 	struct work_struct reset_work;
233 	bool hw_full_reset:1;
234 	bool hw_init_done:1;
235 	bool fw_assert:1;
236 	bool has_eht:1;
237 	bool regd_user:1;
238 	bool regd_in_progress:1;
239 	bool aspm_supported:1;
240 	bool hif_idle:1;
241 	bool hif_resumed:1;
242 	bool regd_change:1;
243 	wait_queue_head_t wait;
244 
245 	struct work_struct init_work;
246 
247 	u8 fw_debug;
248 	u8 fw_features;
249 
250 	struct mt76_connac_pm pm;
251 	struct mt76_connac_coredump coredump;
252 	const struct mt792x_hif_ops *hif_ops;
253 	const struct mt792x_irq_map *irq_map;
254 
255 	struct work_struct ipv6_ns_work;
256 	struct delayed_work mlo_pm_work;
257 	/* IPv6 addresses for WoWLAN */
258 	struct sk_buff_head ipv6_ns_list;
259 
260 	enum environment_cap country_ie_env;
261 	u32 backup_l1;
262 	u32 backup_l2;
263 
264 	struct ieee80211_chanctx_conf *new_ctx;
265 };
266 
267 static inline struct mt792x_bss_conf *
268 mt792x_vif_to_link(struct mt792x_vif *mvif, u8 link_id)
269 {
270 	struct ieee80211_vif *vif;
271 	struct mt792x_bss_conf *bss_conf;
272 
273 	vif = container_of((void *)mvif, struct ieee80211_vif, drv_priv);
274 
275 	if (!ieee80211_vif_is_mld(vif) ||
276 	    link_id >= IEEE80211_LINK_UNSPECIFIED)
277 		return &mvif->bss_conf;
278 
279 	bss_conf = rcu_dereference_protected(mvif->link_conf[link_id],
280 					     lockdep_is_held(&mvif->phy->dev->mt76.mutex));
281 
282 	return bss_conf ? bss_conf : &mvif->bss_conf;
283 }
284 
285 static inline struct mt792x_link_sta *
286 mt792x_sta_to_link(struct mt792x_sta *msta, u8 link_id)
287 {
288 	struct ieee80211_vif *vif;
289 
290 	vif = container_of((void *)msta->vif, struct ieee80211_vif, drv_priv);
291 
292 	if (!ieee80211_vif_is_mld(vif) ||
293 	    link_id >= IEEE80211_LINK_UNSPECIFIED)
294 		return &msta->deflink;
295 
296 	return rcu_dereference_protected(msta->link[link_id],
297 		lockdep_is_held(&msta->vif->phy->dev->mt76.mutex));
298 }
299 
300 static inline struct mt792x_bss_conf *
301 mt792x_link_conf_to_mconf(struct ieee80211_bss_conf *link_conf)
302 {
303 	struct ieee80211_vif *vif = link_conf->vif;
304 	struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
305 
306 	return mt792x_vif_to_link(mvif, link_conf->link_id);
307 }
308 
309 static inline struct ieee80211_bss_conf *
310 mt792x_vif_to_bss_conf(struct ieee80211_vif *vif, unsigned int link_id)
311 {
312 	if (!ieee80211_vif_is_mld(vif) ||
313 	    link_id >= IEEE80211_LINK_UNSPECIFIED)
314 		return &vif->bss_conf;
315 
316 	return link_conf_dereference_protected(vif, link_id);
317 }
318 
319 static inline struct ieee80211_link_sta *
320 mt792x_sta_to_link_sta(struct ieee80211_vif *vif, struct ieee80211_sta *sta,
321 		       unsigned int link_id)
322 {
323 	if (!ieee80211_vif_is_mld(vif) ||
324 	    link_id >= IEEE80211_LINK_UNSPECIFIED)
325 		return &sta->deflink;
326 
327 	return link_sta_dereference_protected(sta, link_id);
328 }
329 
330 static inline struct mt792x_dev *
331 mt792x_hw_dev(struct ieee80211_hw *hw)
332 {
333 	struct mt76_phy *phy = hw->priv;
334 
335 	return container_of(phy->dev, struct mt792x_dev, mt76);
336 }
337 
338 static inline struct mt792x_phy *
339 mt792x_hw_phy(struct ieee80211_hw *hw)
340 {
341 	struct mt76_phy *phy = hw->priv;
342 
343 	return phy->priv;
344 }
345 
346 static inline void
347 mt792x_get_status_freq_info(struct mt76_rx_status *status, u8 chfreq)
348 {
349 	if (chfreq > 180) {
350 		status->band = NL80211_BAND_6GHZ;
351 		chfreq = (chfreq - 181) * 4 + 1;
352 	} else if (chfreq > 14) {
353 		status->band = NL80211_BAND_5GHZ;
354 	} else {
355 		status->band = NL80211_BAND_2GHZ;
356 	}
357 	status->freq = ieee80211_channel_to_frequency(chfreq, status->band);
358 }
359 
360 static inline bool mt792x_dma_need_reinit(struct mt792x_dev *dev)
361 {
362 	return !mt76_get_field(dev, MT_WFDMA_DUMMY_CR, MT_WFDMA_NEED_REINIT);
363 }
364 
365 #define mt792x_mutex_acquire(dev)	\
366 	mt76_connac_mutex_acquire(&(dev)->mt76, &(dev)->pm)
367 #define mt792x_mutex_release(dev)	\
368 	mt76_connac_mutex_release(&(dev)->mt76, &(dev)->pm)
369 
370 void mt792x_stop(struct ieee80211_hw *hw, bool suspend);
371 void mt792x_pm_wake_work(struct work_struct *work);
372 void mt792x_pm_power_save_work(struct work_struct *work);
373 void mt792x_reset(struct mt76_dev *mdev);
374 void mt792x_update_channel(struct mt76_phy *mphy);
375 void mt792x_mac_reset_counters(struct mt792x_phy *phy);
376 void mt792x_mac_init_band(struct mt792x_dev *dev, u8 band);
377 void mt792x_mac_assoc_rssi(struct mt792x_dev *dev, struct sk_buff *skb);
378 struct mt76_wcid *mt792x_rx_get_wcid(struct mt792x_dev *dev, u16 idx,
379 				     bool unicast);
380 void mt792x_mac_update_mib_stats(struct mt792x_phy *phy);
381 void mt792x_mac_set_timeing(struct mt792x_phy *phy);
382 void mt792x_mac_work(struct work_struct *work);
383 void mt792x_remove_interface(struct ieee80211_hw *hw,
384 			     struct ieee80211_vif *vif);
385 void mt792x_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
386 	       struct sk_buff *skb);
387 int mt792x_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
388 		   unsigned int link_id, u16 queue,
389 		   const struct ieee80211_tx_queue_params *params);
390 int mt792x_get_stats(struct ieee80211_hw *hw,
391 		     struct ieee80211_low_level_stats *stats);
392 u64 mt792x_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
393 void mt792x_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
394 		    u64 timestamp);
395 void mt792x_tx_worker(struct mt76_worker *w);
396 void mt792x_roc_timer(struct timer_list *timer);
397 void mt792x_csa_timer(struct timer_list *timer);
398 void mt792x_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
399 		  u32 queues, bool drop);
400 int mt792x_assign_vif_chanctx(struct ieee80211_hw *hw,
401 			      struct ieee80211_vif *vif,
402 			      struct ieee80211_bss_conf *link_conf,
403 			      struct ieee80211_chanctx_conf *ctx);
404 void mt792x_unassign_vif_chanctx(struct ieee80211_hw *hw,
405 				 struct ieee80211_vif *vif,
406 				 struct ieee80211_bss_conf *link_conf,
407 				 struct ieee80211_chanctx_conf *ctx);
408 void mt792x_set_wakeup(struct ieee80211_hw *hw, bool enabled);
409 void mt792x_get_et_strings(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
410 			   u32 sset, u8 *data);
411 int mt792x_get_et_sset_count(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
412 			     int sset);
413 void mt792x_get_et_stats(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
414 			 struct ethtool_stats *stats, u64 *data);
415 void mt792x_sta_statistics(struct ieee80211_hw *hw,
416 			   struct ieee80211_vif *vif,
417 			   struct ieee80211_sta *sta,
418 			   struct station_info *sinfo);
419 void mt792x_set_coverage_class(struct ieee80211_hw *hw, int radio_idx,
420 			       s16 coverage_class);
421 void mt792x_dma_cleanup(struct mt792x_dev *dev);
422 int mt792x_dma_enable(struct mt792x_dev *dev);
423 int mt792x_wpdma_reset(struct mt792x_dev *dev, bool force);
424 int mt792x_wpdma_reinit_cond(struct mt792x_dev *dev);
425 int mt792x_dma_disable(struct mt792x_dev *dev, bool force);
426 irqreturn_t mt792x_irq_handler(int irq, void *dev_instance);
427 void mt792x_rx_poll_complete(struct mt76_dev *mdev, enum mt76_rxq_id q);
428 int mt792x_poll_tx(struct napi_struct *napi, int budget);
429 int mt792x_poll_rx(struct napi_struct *napi, int budget);
430 void mt792x_irq_tasklet(unsigned long data);
431 int mt792x_wfsys_reset(struct mt792x_dev *dev);
432 int mt792x_tx_stats_show(struct seq_file *file, void *data);
433 int mt792x_queues_acq(struct seq_file *s, void *data);
434 int mt792x_queues_read(struct seq_file *s, void *data);
435 int mt792x_pm_stats(struct seq_file *s, void *data);
436 int mt792x_pm_idle_timeout_set(void *data, u64 val);
437 int mt792x_pm_idle_timeout_get(void *data, u64 *val);
438 int mt792x_init_wiphy(struct ieee80211_hw *hw);
439 struct ieee80211_ops *
440 mt792x_get_mac80211_ops(struct device *dev,
441 			const struct ieee80211_ops *mac80211_ops,
442 			void *drv_data, u8 *fw_features);
443 int mt792x_init_wcid(struct mt792x_dev *dev);
444 int mt792x_mcu_drv_pmctrl(struct mt792x_dev *dev);
445 int mt792x_mcu_fw_pmctrl(struct mt792x_dev *dev);
446 void mt792x_mac_link_bss_remove(struct mt792x_dev *dev,
447 				struct mt792x_bss_conf *mconf,
448 				struct mt792x_link_sta *mlink);
449 void mt792x_config_mac_addr_list(struct mt792x_dev *dev);
450 
451 static inline char *mt792x_ram_name(struct mt792x_dev *dev)
452 {
453 	switch (mt76_chip(&dev->mt76)) {
454 	case 0x7902:
455 		return MT7902_FIRMWARE_WM;
456 	case 0x7920:
457 		return MT7920_FIRMWARE_WM;
458 	case 0x7922:
459 		return MT7922_FIRMWARE_WM;
460 	case 0x7925:
461 		return MT7925_FIRMWARE_WM;
462 	default:
463 		return MT7921_FIRMWARE_WM;
464 	}
465 }
466 
467 static inline char *mt792x_patch_name(struct mt792x_dev *dev)
468 {
469 	switch (mt76_chip(&dev->mt76)) {
470 	case 0x7902:
471 		return MT7902_ROM_PATCH;
472 	case 0x7920:
473 		return MT7920_ROM_PATCH;
474 	case 0x7922:
475 		return MT7922_ROM_PATCH;
476 	case 0x7925:
477 		return MT7925_ROM_PATCH;
478 	default:
479 		return MT7921_ROM_PATCH;
480 	}
481 }
482 
483 int mt792x_load_firmware(struct mt792x_dev *dev);
484 
485 /* usb */
486 #define MT_USB_TYPE_VENDOR	(USB_TYPE_VENDOR | 0x1f)
487 #define MT_USB_TYPE_UHW_VENDOR	(USB_TYPE_VENDOR | 0x1e)
488 int mt792xu_dma_init(struct mt792x_dev *dev, bool resume);
489 int mt792xu_mcu_power_on(struct mt792x_dev *dev);
490 int mt792xu_wfsys_reset(struct mt792x_dev *dev);
491 int mt792xu_init_reset(struct mt792x_dev *dev);
492 u32 mt792xu_rr(struct mt76_dev *dev, u32 addr);
493 void mt792xu_wr(struct mt76_dev *dev, u32 addr, u32 val);
494 u32 mt792xu_rmw(struct mt76_dev *dev, u32 addr, u32 mask, u32 val);
495 void mt792xu_copy(struct mt76_dev *dev, u32 offset, const void *data, int len);
496 void mt792xu_disconnect(struct usb_interface *usb_intf);
497 void mt792xu_stop(struct ieee80211_hw *hw, bool suspend);
498 
499 static inline void
500 mt792x_skb_add_usb_sdio_hdr(struct mt792x_dev *dev, struct sk_buff *skb,
501 			    int type)
502 {
503 	u32 hdr, len;
504 
505 	len = mt76_is_usb(&dev->mt76) ? skb->len : skb->len + sizeof(hdr);
506 	hdr = FIELD_PREP(MT792x_SDIO_HDR_TX_BYTES, len) |
507 	      FIELD_PREP(MT792x_SDIO_HDR_PKT_TYPE, type);
508 
509 	put_unaligned_le32(hdr, skb_push(skb, sizeof(hdr)));
510 }
511 
512 int __mt792xe_mcu_drv_pmctrl(struct mt792x_dev *dev);
513 int mt792xe_mcu_drv_pmctrl(struct mt792x_dev *dev);
514 int mt792xe_mcu_fw_pmctrl(struct mt792x_dev *dev);
515 
516 #ifdef CONFIG_ACPI
517 int mt792x_init_acpi_sar(struct mt792x_dev *dev);
518 int mt792x_init_acpi_sar_power(struct mt792x_phy *phy, bool set_default);
519 u8 mt792x_acpi_get_flags(struct mt792x_phy *phy);
520 u32 mt792x_acpi_get_mtcl_conf(struct mt792x_phy *phy, char *alpha2);
521 #else
522 static inline int mt792x_init_acpi_sar(struct mt792x_dev *dev)
523 {
524 	return 0;
525 }
526 
527 static inline int mt792x_init_acpi_sar_power(struct mt792x_phy *phy,
528 					     bool set_default)
529 {
530 	return 0;
531 }
532 
533 static inline u8 mt792x_acpi_get_flags(struct mt792x_phy *phy)
534 {
535 	return 0;
536 }
537 
538 static inline u32 mt792x_acpi_get_mtcl_conf(struct mt792x_phy *phy, char *alpha2)
539 {
540 	return MT792X_ACPI_MTCL_INVALID;
541 }
542 #endif
543 
544 #endif /* __MT7925_H */
545