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2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d 
 kernel/drivers/net/wireless/rockchip_wlan/cywdhd/bcmdhd/wl_cfg_btcoex.c
....@@ -1,15 +1,16 @@
1
-/* SPDX-License-Identifier: GPL-2.0 */
21 /*
32  * Linux cfg80211 driver - Dongle Host Driver (DHD) related
43  *
5
- * Copyright (C) 1999-2019, Broadcom Corporation
6
- * 
4
+ * Portions of this code are copyright (c) 2022 Cypress Semiconductor Corporation
5
+ *
6
+ * Copyright (C) 1999-2017, Broadcom Corporation
7
+ *
78  *      Unless you and Broadcom execute a separate written software license
89  * agreement governing use of this software, this software is licensed to you
910  * under the terms of the GNU General Public License version 2 (the "GPL"),
1011  * available at http://www.broadcom.com/licenses/GPLv2.php, with the
1112  * following added to such license:
12
- * 
13
+ *
1314  *      As a special exception, the copyright holders of this software give you
1415  * permission to link this software with independent modules, and to copy and
1516  * distribute the resulting executable under terms of your choice, provided that
....@@ -17,7 +18,7 @@
1718  * the license of that module.  An independent module is a module which is not
1819  * derived from this software.  The special exception does not apply to any
1920  * modifications of the software.
20
- * 
21
+ *
2122  *      Notwithstanding the above, under no circumstances may you combine this
2223  * software in any way with any other Broadcom software provided under a license
2324  * other than the GPL, without Broadcom's express prior written consent.
....@@ -25,7 +26,7 @@
2526  *
2627  * <<Broadcom-WL-IPTag/Open:>>
2728  *
28
- * $Id: wl_cfg_btcoex.c 709309 2019-01-17 09:04:00Z $
29
+ * $Id: wl_cfg_btcoex.c 814554 2019-04-11 23:06:22Z $
2930  */
3031 
3132 #include <net/rtnetlink.h>
....@@ -43,10 +44,10 @@
4344 extern uint dhd_pkt_filter_enable;
4445 extern uint dhd_master_mode;
4546 extern void dhd_pktfilter_offload_enable(dhd_pub_t * dhd, char *arg, int enable, int master_mode);
46
-#endif
47
+#endif // endif
4748 
4849 struct btcoex_info {
49
-	struct timer_list timer;
50
+	timer_list_compat_t timer;
5051 	u32 timer_ms;
5152 	u32 timer_on;
5253 	u32 ts_dhcp_start;	/* ms ts ecord time stats */
....@@ -59,6 +60,7 @@
5960 	struct net_device *dev;
6061 };
6162 
63
+#if defined(OEM_ANDROID)
6264 static struct btcoex_info *btcoex_info_loc = NULL;
6365 
6466 /* TODO: clean up the BT-Coex code, it still have some legacy ioctl/iovar functions */
....@@ -71,6 +73,9 @@
7173 #define BT_DHCP_OPPR_WIN_TIME	2500
7274 /* T2 turn off SCO/SCO supperesion is (timeout) */
7375 #define BT_DHCP_FLAG_FORCE_TIME 5500
76
+
77
+#define	BTCOEXMODE	"BTCOEXMODE"
78
+#define	POWERMODE	"POWERMODE"
7479 
7580 enum wl_cfg80211_btcoex_status {
7681 	BT_DHCP_IDLE,
....@@ -93,9 +98,12 @@
9398 	} var;
9499 	int error;
95100 
96
-	bcm_mkiovar(name, (char *)(&reg), sizeof(reg),
97
-		(char *)(&var), sizeof(var.buf));
98
-	error = wldev_ioctl(dev, WLC_GET_VAR, (char *)(&var), sizeof(var.buf), false);
101
+	bzero(&var, sizeof(var));
102
+	error = bcm_mkiovar(name, (char *)(&reg), sizeof(reg), (char *)(&var), sizeof(var.buf));
103
+	if (error == 0) {
104
+		return BCME_BUFTOOSHORT;
105
+	}
106
+	error = wldev_ioctl_get(dev, WLC_GET_VAR, (char *)(&var), sizeof(var.buf));
99107 
100108 	*retval = dtoh32(var.val);
101109 	return (error);
....@@ -104,16 +112,15 @@
104112 static int
105113 dev_wlc_bufvar_set(struct net_device *dev, char *name, char *buf, int len)
106114 {
107
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31)
108
-	char ioctlbuf_local[1024];
109
-#else
110
-	static char ioctlbuf_local[1024];
111
-#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31) */
115
+	char ioctlbuf_local[WLC_IOCTL_SMLEN];
116
+	int ret;
112117 
113
-	bcm_mkiovar(name, buf, len, ioctlbuf_local, sizeof(ioctlbuf_local));
114
-
115
-	return (wldev_ioctl(dev, WLC_SET_VAR, ioctlbuf_local, sizeof(ioctlbuf_local), true));
118
+	ret = bcm_mkiovar(name, buf, len, ioctlbuf_local, sizeof(ioctlbuf_local));
119
+	if (ret == 0)
120
+		return BCME_BUFTOOSHORT;
121
+	return (wldev_ioctl_set(dev, WLC_SET_VAR, ioctlbuf_local, ret));
116122 }
123
+
117124 /*
118125 get named driver variable to uint register value and return error indication
119126 calling example: dev_wlc_intvar_set_reg(dev, "btc_params",66, value)
....@@ -123,7 +130,7 @@
123130 {
124131 	char reg_addr[8];
125132 
126
-	memset(reg_addr, 0, sizeof(reg_addr));
133
+	bzero(reg_addr, sizeof(reg_addr));
127134 	memcpy((char *)&reg_addr[0], (char *)addr, 4);
128135 	memcpy((char *)&reg_addr[4], (char *)val, 4);
129136 
....@@ -276,13 +283,12 @@
276283 #if defined(BT_DHCP_USE_FLAGS)
277284 	char buf_flag7_dhcp_on[8] = { 7, 00, 00, 00, 0x1, 0x0, 0x00, 0x00 };
278285 	char buf_flag7_default[8]   = { 7, 00, 00, 00, 0x0, 0x00, 0x00, 0x00};
279
-#endif
280
-
286
+#endif // endif
281287 
282288 #if defined(BT_DHCP_eSCO_FIX)
283289 	/* set = 1, save & turn on  0 - off & restore prev settings */
284290 	set_btc_esco_params(dev, set);
285
-#endif
291
+#endif // endif
286292 
287293 #if defined(BT_DHCP_USE_FLAGS)
288294 	WL_TRACE(("WI-FI priority boost via bt flags, set:%d\n", set));
....@@ -296,18 +302,12 @@
296302 		dev_wlc_bufvar_set(dev, "btc_flags",
297303 			(char *)&buf_flag7_default[0],
298304 			sizeof(buf_flag7_default));
299
-#endif
305
+#endif // endif
300306 }
301307 
302
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 15, 0))
303
-static void wl_cfg80211_bt_timerfunc(struct timer_list *t)
304
-{
305
-	struct btcoex_info *bt_local = from_timer(bt_local, t, timer);
306
-#else
307308 static void wl_cfg80211_bt_timerfunc(ulong data)
308309 {
309310 	struct btcoex_info *bt_local = (struct btcoex_info *)data;
310
-#endif
311311 	WL_TRACE(("Enter\n"));
312312 	bt_local->timer_on = 0;
313313 	schedule_work(&bt_local->work);
....@@ -317,7 +317,9 @@
317317 {
318318 	struct btcoex_info *btcx_inf;
319319 
320
+	GCC_DIAGNOSTIC_PUSH_SUPPRESS_CAST();
320321 	btcx_inf = container_of(work, struct btcoex_info, work);
322
+	GCC_DIAGNOSTIC_POP();
321323 
322324 	if (btcx_inf->timer_on) {
323325 		btcx_inf->timer_on = 0;
....@@ -397,13 +399,7 @@
397399 	btco_inf->ts_dhcp_ok = 0;
398400 	/* Set up timer for BT  */
399401 	btco_inf->timer_ms = 10;
400
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 15, 0))
401
-	timer_setup(&btco_inf->timer, wl_cfg80211_bt_timerfunc, 0);
402
-#else
403
-	init_timer(&btco_inf->timer);
404
-	btco_inf->timer.data = (ulong)btco_inf;
405
-	btco_inf->timer.function = wl_cfg80211_bt_timerfunc;
406
-#endif
402
+	init_timer_compat(&btco_inf->timer, wl_cfg80211_bt_timerfunc, btco_inf);
407403 
408404 	btco_inf->dev = ndev;
409405 
....@@ -431,8 +427,13 @@
431427 int wl_cfg80211_set_btcoex_dhcp(struct net_device *dev, dhd_pub_t *dhd, char *command)
432428 {
433429 
430
+#ifndef OEM_ANDROID
431
+	static int  pm = PM_FAST;
432
+	int  pm_local = PM_OFF;
433
+#endif /* OEM_ANDROID */
434434 	struct btcoex_info *btco_inf = btcoex_info_loc;
435435 	char powermode_val = 0;
436
+	uint8 cmd_len = 0;
436437 	char buf_reg66va_dhcp_on[8] = { 66, 00, 00, 00, 0x10, 0x27, 0x00, 0x00 };
437438 	char buf_reg41va_dhcp_on[8] = { 41, 00, 00, 00, 0x33, 0x00, 0x00, 0x00 };
438439 	char buf_reg68va_dhcp_on[8] = { 68, 00, 00, 00, 0x90, 0x01, 0x00, 0x00 };
....@@ -446,23 +447,38 @@
446447 	char buf_flag7_default[8] =   { 7, 00, 00, 00, 0x0, 0x00, 0x00, 0x00};
447448 
448449 	/* Figure out powermode 1 or o command */
449
-	strncpy((char *)&powermode_val, command + strlen("BTCOEXMODE") +1, 1);
450
+#ifdef  OEM_ANDROID
451
+	cmd_len = sizeof(BTCOEXMODE);
452
+#else
453
+	cmd_len = sizeof(POWERMODE);
454
+#endif // endif
455
+	powermode_val = command[cmd_len];
450456 
451
-	if (strnicmp((char *)&powermode_val, "1", strlen("1")) == 0) {
457
+	if (powermode_val == '1') {
452458 		WL_TRACE_HW4(("DHCP session starts\n"));
453
-
454459 
455460 #ifdef PKT_FILTER_SUPPORT
456461 		dhd->dhcp_in_progress = 1;
457462 
463
+#if defined(APSTA_BLOCK_ARP_DURING_DHCP)
464
+		if (DHD_OPMODE_STA_SOFTAP_CONCURR(dhd)) {
465
+			/* Block ARP frames while DHCP of STA interface is in
466
+			 * progress in case of STA/SoftAP concurrent mode
467
+			 */
468
+			wl_cfg80211_block_arp(dev, TRUE);
469
+		} else
470
+#endif /* APSTA_BLOCK_ARP_DURING_DHCP */
458471 		if (dhd->early_suspended) {
459472 			WL_TRACE_HW4(("DHCP in progressing , disable packet filter!!!\n"));
460473 			dhd_enable_packet_filter(0, dhd);
461474 		}
462
-#endif
475
+#endif /* PKT_FILTER_SUPPORT */
463476 
464477 		/* Retrieve and saved orig regs value */
465478 		if ((saved_status == FALSE) &&
479
+#ifndef OEM_ANDROID
480
+			(!dev_wlc_ioctl(dev, WLC_GET_PM, &pm, sizeof(pm))) &&
481
+#endif // endif
466482 			(!dev_wlc_intvar_get_reg(dev, "btc_params", 66,  &saved_reg66)) &&
467483 			(!dev_wlc_intvar_get_reg(dev, "btc_params", 41,  &saved_reg41)) &&
468484 			(!dev_wlc_intvar_get_reg(dev, "btc_params", 68,  &saved_reg68)))   {
....@@ -471,6 +487,9 @@
471487 					saved_reg66, saved_reg41, saved_reg68));
472488 
473489 				/* Disable PM mode during dhpc session */
490
+#ifndef OEM_ANDROID
491
+				dev_wlc_ioctl(dev, WLC_SET_PM, &pm_local, sizeof(pm_local));
492
+#endif // endif
474493 
475494 				/* Disable PM mode during dhpc session */
476495 				/* Start  BT timer only for SCO connection */
....@@ -491,7 +510,8 @@
491510 
492511 					btco_inf->bt_state = BT_DHCP_START;
493512 					btco_inf->timer_on = 1;
494
-					mod_timer(&btco_inf->timer, btco_inf->timer.expires);
513
+					mod_timer(&btco_inf->timer,
514
+						timer_expires(&btco_inf->timer));
495515 					WL_TRACE(("enable BT DHCP Timer\n"));
496516 				}
497517 		}
....@@ -499,22 +519,33 @@
499519 			WL_ERR(("was called w/o DHCP OFF. Continue\n"));
500520 		}
501521 	}
502
-	else if (strnicmp((char *)&powermode_val, "2", strlen("2")) == 0) {
503
-
504
-
522
+#ifdef  OEM_ANDROID
523
+	else if (powermode_val == '2') {
524
+#else
525
+	else if (powermode_val == '0') {
526
+#endif // endif
505527 
506528 #ifdef PKT_FILTER_SUPPORT
507529 		dhd->dhcp_in_progress = 0;
508530 		WL_TRACE_HW4(("DHCP is complete \n"));
509531 
510
-		/* Enable packet filtering */
532
+#if defined(APSTA_BLOCK_ARP_DURING_DHCP)
533
+		if (DHD_OPMODE_STA_SOFTAP_CONCURR(dhd)) {
534
+			/* Unblock ARP frames */
535
+			wl_cfg80211_block_arp(dev, FALSE);
536
+		} else
537
+#endif /* APSTA_BLOCK_ARP_DURING_DHCP */
511538 		if (dhd->early_suspended) {
539
+			/* Enable packet filtering */
512540 			WL_TRACE_HW4(("DHCP is complete , enable packet filter!!!\n"));
513541 			dhd_enable_packet_filter(1, dhd);
514542 		}
515543 #endif /* PKT_FILTER_SUPPORT */
516544 
517545 		/* Restoring PM mode */
546
+#ifndef OEM_ANDROID
547
+		dev_wlc_ioctl(dev, WLC_SET_PM, &pm, sizeof(pm));
548
+#endif // endif
518549 
519550 		/* Stop any bt timer because DHCP session is done */
520551 		WL_TRACE(("disable BT DHCP Timer\n"));
....@@ -557,7 +588,6 @@
557588 		WL_ERR(("Unkwown yet power setting, ignored\n"));
558589 	}
559590 
560
-	snprintf(command, 3, "OK");
561
-
562
-	return (strlen("OK"));
591
+	return (snprintf(command, sizeof("OK"), "OK") + 1);
563592 }
593
+#endif /* defined(OEM_ANDROID) */