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2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d 
 kernel/drivers/net/wireless/rockchip_wlan/cywdhd/bcmdhd/wldev_common.c
....@@ -1,15 +1,16 @@
1
-/* SPDX-License-Identifier: GPL-2.0 */
21 /*
32  * Common function shared by Linux WEXT, cfg80211 and p2p drivers
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: wldev_common.c 674374 2017-10-20 07:38:00Z $
29
+ * $Id: wldev_common.c 698236 2017-05-08 19:41:09Z $
2930  */
3031 
3132 #include <osl.h>
....@@ -35,6 +36,10 @@
3536 
3637 #include <wldev_common.h>
3738 #include <bcmutils.h>
39
+#ifdef WL_CFG80211
40
+#include <wl_cfg80211.h>
41
+#include <wl_cfgscan.h>
42
+#endif /* WL_CFG80211 */
3843 
3944 #define htod32(i) (i)
4045 #define htod16(i) (i)
....@@ -45,28 +50,58 @@
4550 
4651 #define	WLDEV_ERROR(args)						\
4752 	do {										\
48
-		printk(KERN_ERR "WLDEV-ERROR) %s : ", __func__);	\
53
+		printk(KERN_ERR "WLDEV-ERROR) ");	\
54
+		printk args;							\
55
+	} while (0)
56
+
57
+#define	WLDEV_INFO(args)						\
58
+	do {										\
59
+		printk(KERN_INFO "WLDEV-INFO) ");	\
4960 		printk args;							\
5061 	} while (0)
5162 
5263 extern int dhd_ioctl_entry_local(struct net_device *net, wl_ioctl_t *ioc, int cmd);
5364 
54
-s32 wldev_ioctl(
65
+static s32 wldev_ioctl(
5566 	struct net_device *dev, u32 cmd, void *arg, u32 len, u32 set)
5667 {
5768 	s32 ret = 0;
58
-	struct wl_ioctl ioc;
59
-
69
+	struct wl_ioctl  ioc;
6070 
6171 	memset(&ioc, 0, sizeof(ioc));
6272 	ioc.cmd = cmd;
6373 	ioc.buf = arg;
6474 	ioc.len = len;
6575 	ioc.set = set;
66
-
67
-	ret = dhd_ioctl_entry_local(dev, &ioc, cmd);
76
+	ret = dhd_ioctl_entry_local(dev, (wl_ioctl_t *)&ioc, cmd);
6877 
6978 	return ret;
79
+}
80
+
81
+/*
82
+SET commands :
83
+cast buffer to non-const  and call the GET function
84
+*/
85
+
86
+s32 wldev_ioctl_set(
87
+	struct net_device *dev, u32 cmd, const void *arg, u32 len)
88
+{
89
+
90
+#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
91
+#pragma GCC diagnostic push
92
+#pragma GCC diagnostic ignored "-Wcast-qual"
93
+#endif // endif
94
+	return wldev_ioctl(dev, cmd, (void *)arg, len, 1);
95
+#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
96
+#pragma GCC diagnostic pop
97
+#endif // endif
98
+
99
+}
100
+
101
+s32 wldev_ioctl_get(
102
+	struct net_device *dev, u32 cmd, void *arg, u32 len)
103
+{
104
+	return wldev_ioctl(dev, cmd, (void *)arg, len, 0);
70105 }
71106 
72107 /* Format a iovar buffer, not bsscfg indexed. The bsscfg index will be
....@@ -74,7 +109,7 @@
74109  * wl_iw, wl_cfg80211 and wl_cfgp2p
75110  */
76111 static s32 wldev_mkiovar(
77
-	const s8 *iovar_name, s8 *param, s32 paramlen,
112
+	const s8 *iovar_name, const s8 *param, s32 paramlen,
78113 	s8 *iovar_buf, u32 buflen)
79114 {
80115 	s32 iolen = 0;
....@@ -85,23 +120,37 @@
85120 
86121 s32 wldev_iovar_getbuf(
87122 	struct net_device *dev, s8 *iovar_name,
88
-	void *param, s32 paramlen, void *buf, s32 buflen, struct mutex* buf_sync)
123
+	const void *param, s32 paramlen, void *buf, s32 buflen, struct mutex* buf_sync)
89124 {
90125 	s32 ret = 0;
91126 	if (buf_sync) {
92127 		mutex_lock(buf_sync);
93128 	}
94
-	wldev_mkiovar(iovar_name, param, paramlen, buf, buflen);
95
-	ret = wldev_ioctl(dev, WLC_GET_VAR, buf, buflen, FALSE);
129
+
130
+	if (buf && (buflen > 0)) {
131
+		/* initialize the response buffer */
132
+		memset(buf, 0, buflen);
133
+	} else {
134
+		ret = BCME_BADARG;
135
+		goto exit;
136
+	}
137
+
138
+	ret = wldev_mkiovar(iovar_name, param, paramlen, buf, buflen);
139
+
140
+	if (!ret) {
141
+		ret = BCME_BUFTOOSHORT;
142
+		goto exit;
143
+	}
144
+	ret = wldev_ioctl_get(dev, WLC_GET_VAR, buf, buflen);
145
+exit:
96146 	if (buf_sync)
97147 		mutex_unlock(buf_sync);
98148 	return ret;
99149 }
100150 
101
-
102151 s32 wldev_iovar_setbuf(
103152 	struct net_device *dev, s8 *iovar_name,
104
-	void *param, s32 paramlen, void *buf, s32 buflen, struct mutex* buf_sync)
153
+	const void *param, s32 paramlen, void *buf, s32 buflen, struct mutex* buf_sync)
105154 {
106155 	s32 ret = 0;
107156 	s32 iovar_len;
....@@ -110,7 +159,7 @@
110159 	}
111160 	iovar_len = wldev_mkiovar(iovar_name, param, paramlen, buf, buflen);
112161 	if (iovar_len > 0)
113
-		ret = wldev_ioctl(dev, WLC_SET_VAR, buf, iovar_len, TRUE);
162
+		ret = wldev_ioctl_set(dev, WLC_SET_VAR, buf, iovar_len);
114163 	else
115164 		ret = BCME_BUFTOOSHORT;
116165 
....@@ -129,7 +178,6 @@
129178 	return wldev_iovar_setbuf(dev, iovar, &val, sizeof(val), iovar_buf,
130179 		sizeof(iovar_buf), NULL);
131180 }
132
-
133181 
134182 s32 wldev_iovar_getint(
135183 	struct net_device *dev, s8 *iovar, s32 *pval)
....@@ -153,7 +201,7 @@
153201  *  wl_iw, wl_cfg80211 and wl_cfgp2p
154202  */
155203 s32 wldev_mkiovar_bsscfg(
156
-	const s8 *iovar_name, s8 *param, s32 paramlen,
204
+	const s8 *iovar_name, const s8 *param, s32 paramlen,
157205 	s8 *iovar_buf, s32 buflen, s32 bssidx)
158206 {
159207 	const s8 *prefix = "bsscfg:";
....@@ -163,7 +211,7 @@
163211 	u32 iolen;
164212 
165213 	/* initialize buffer */
166
-	if (!iovar_buf || buflen == 0)
214
+	if (!iovar_buf || buflen <= 0)
167215 		return BCME_BADARG;
168216 	memset(iovar_buf, 0, buflen);
169217 
....@@ -176,8 +224,7 @@
176224 	namelen = (u32) strlen(iovar_name) + 1; /* lengh of iovar  name + null */
177225 	iolen = prefixlen + namelen + sizeof(u32) + paramlen;
178226 
179
-	if (buflen < 0 || iolen > (u32)buflen)
180
-	{
227
+	if (iolen > (u32)buflen) {
181228 		WLDEV_ERROR(("%s: buffer is too short\n", __FUNCTION__));
182229 		return BCME_BUFTOOSHORT;
183230 	}
....@@ -215,7 +262,7 @@
215262 	}
216263 
217264 	wldev_mkiovar_bsscfg(iovar_name, param, paramlen, buf, buflen, bsscfg_idx);
218
-	ret = wldev_ioctl(dev, WLC_GET_VAR, buf, buflen, FALSE);
265
+	ret = wldev_ioctl_get(dev, WLC_GET_VAR, buf, buflen);
219266 	if (buf_sync) {
220267 		mutex_unlock(buf_sync);
221268 	}
....@@ -224,8 +271,9 @@
224271 }
225272 
226273 s32 wldev_iovar_setbuf_bsscfg(
227
-	struct net_device *dev, s8 *iovar_name,
228
-	void *param, s32 paramlen, void *buf, s32 buflen, s32 bsscfg_idx, struct mutex* buf_sync)
274
+	struct net_device *dev, const s8 *iovar_name,
275
+	const void *param, s32 paramlen,
276
+	void *buf, s32 buflen, s32 bsscfg_idx, struct mutex* buf_sync)
229277 {
230278 	s32 ret = 0;
231279 	s32 iovar_len;
....@@ -234,7 +282,7 @@
234282 	}
235283 	iovar_len = wldev_mkiovar_bsscfg(iovar_name, param, paramlen, buf, buflen, bsscfg_idx);
236284 	if (iovar_len > 0)
237
-		ret = wldev_ioctl(dev, WLC_SET_VAR, buf, iovar_len, TRUE);
285
+		ret = wldev_ioctl_set(dev, WLC_SET_VAR, buf, iovar_len);
238286 	else {
239287 		ret = BCME_BUFTOOSHORT;
240288 	}
....@@ -255,7 +303,6 @@
255303 	return wldev_iovar_setbuf_bsscfg(dev, iovar, &val, sizeof(val), iovar_buf,
256304 		sizeof(iovar_buf), bssidx, NULL);
257305 }
258
-
259306 
260307 s32 wldev_iovar_getint_bsscfg(
261308 	struct net_device *dev, s8 *iovar, s32 *pval, s32 bssidx)
....@@ -281,8 +328,8 @@
281328 
282329 	if (!plink_speed)
283330 		return -ENOMEM;
284
-	plink_speed = 0;
285
-	error = wldev_ioctl(dev, WLC_GET_RATE, plink_speed, sizeof(int), 0);
331
+	*plink_speed = 0;
332
+	error = wldev_ioctl_get(dev, WLC_GET_RATE, plink_speed, sizeof(int));
286333 	if (unlikely(error))
287334 		return error;
288335 
....@@ -299,8 +346,7 @@
299346 	if (!scb_val)
300347 		return -ENOMEM;
301348 
302
-	memset(scb_val, 0, sizeof(scb_val_t));
303
-	error = wldev_ioctl(dev, WLC_GET_RSSI, scb_val, sizeof(scb_val_t), 0);
349
+	error = wldev_ioctl_get(dev, WLC_GET_RSSI, scb_val, sizeof(scb_val_t));
304350 	if (unlikely(error))
305351 		return error;
306352 
....@@ -314,9 +360,8 @@
314360 
315361 	if (!pssid)
316362 		return -ENOMEM;
317
-
318363 	memset(pssid, 0, sizeof(wlc_ssid_t));
319
-	error = wldev_ioctl(dev, WLC_GET_SSID, pssid, sizeof(wlc_ssid_t), 0);
364
+	error = wldev_ioctl_get(dev, WLC_GET_SSID, pssid, sizeof(wlc_ssid_t));
320365 	if (unlikely(error))
321366 		return error;
322367 	pssid->SSID_len = dtoh32(pssid->SSID_len);
....@@ -328,7 +373,8 @@
328373 {
329374 	int error;
330375 
331
-	error = wldev_ioctl(dev, WLC_GET_BAND, pband, sizeof(uint), 0);
376
+	*pband = 0;
377
+	error = wldev_ioctl_get(dev, WLC_GET_BAND, pband, sizeof(uint));
332378 	return error;
333379 }
334380 
....@@ -338,7 +384,7 @@
338384 	int error = -1;
339385 
340386 	if ((band == WLC_BAND_AUTO) || (band == WLC_BAND_5G) || (band == WLC_BAND_2G)) {
341
-		error = wldev_ioctl(dev, WLC_SET_BAND, &band, sizeof(band), true);
387
+		error = wldev_ioctl_set(dev, WLC_SET_BAND, &band, sizeof(band));
342388 		if (!error)
343389 			dhd_bus_band_set(dev, band);
344390 	}
....@@ -348,7 +394,7 @@
348394 {
349395 	int error = 0;
350396 
351
-	error = wldev_ioctl(dev, WLC_GET_RATE, datarate, sizeof(int), false);
397
+	error = wldev_ioctl_get(dev, WLC_GET_RATE, datarate, sizeof(int));
352398 	if (error) {
353399 		return -1;
354400 	} else {
....@@ -362,27 +408,30 @@
362408 wl_chspec_driver_to_host(chanspec_t chanspec);
363409 #define WL_EXTRA_BUF_MAX 2048
364410 int wldev_get_mode(
365
-	struct net_device *dev, uint8 *cap)
411
+	struct net_device *dev, uint8 *cap, uint8 caplen)
366412 {
367413 	int error = 0;
368414 	int chanspec = 0;
369415 	uint16 band = 0;
370416 	uint16 bandwidth = 0;
371417 	wl_bss_info_t *bss = NULL;
372
-	char* buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
418
+	char* buf = NULL;
419
+
420
+	buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
373421 	if (!buf) {
374
-		WLDEV_ERROR(("%s:NOMEM\n", __FUNCTION__));
422
+		WLDEV_ERROR(("%s:ENOMEM\n", __FUNCTION__));
375423 		return -ENOMEM;
376424 	}
425
+
377426 	*(u32*) buf = htod32(WL_EXTRA_BUF_MAX);
378
-	error = wldev_ioctl(dev, WLC_GET_BSS_INFO, (void*)buf, WL_EXTRA_BUF_MAX, false);
427
+	error = wldev_ioctl_get(dev, WLC_GET_BSS_INFO, (void*)buf, WL_EXTRA_BUF_MAX);
379428 	if (error) {
380429 		WLDEV_ERROR(("%s:failed:%d\n", __FUNCTION__, error));
381430 		kfree(buf);
382431 		buf = NULL;
383432 		return error;
384433 	}
385
-	bss = (struct  wl_bss_info *)(buf + 4);
434
+	bss = (wl_bss_info_t*)(buf + 4);
386435 	chanspec = wl_chspec_driver_to_host(bss->chanspec);
387436 
388437 	band = chanspec & WL_CHANSPEC_BAND_MASK;
....@@ -390,21 +439,21 @@
390439 
391440 	if (band == WL_CHANSPEC_BAND_2G) {
392441 		if (bss->n_cap)
393
-			strcpy(cap, "n");
442
+			strncpy(cap, "n", caplen);
394443 		else
395
-			strcpy(cap, "bg");
444
+			strncpy(cap, "bg", caplen);
396445 	} else if (band == WL_CHANSPEC_BAND_5G) {
397446 		if (bandwidth == WL_CHANSPEC_BW_80)
398
-			strcpy(cap, "ac");
447
+			strncpy(cap, "ac", caplen);
399448 		else if ((bandwidth == WL_CHANSPEC_BW_40) || (bandwidth == WL_CHANSPEC_BW_20)) {
400449 			if ((bss->nbss_cap & 0xf00) && (bss->n_cap))
401
-				strcpy(cap, "n|ac");
450
+				strncpy(cap, "n|ac", caplen);
402451 			else if (bss->n_cap)
403
-				strcpy(cap, "n");
452
+				strncpy(cap, "n", caplen);
404453 			else if (bss->vht_cap)
405
-				strcpy(cap, "ac");
454
+				strncpy(cap, "ac", caplen);
406455 			else
407
-				strcpy(cap, "a");
456
+				strncpy(cap, "a", caplen);
408457 		} else {
409458 			WLDEV_ERROR(("%s:Mode get failed\n", __FUNCTION__));
410459 			error = BCME_ERROR;
....@@ -422,6 +471,11 @@
422471 	wl_country_t cspec = {{0}, 0, {0}};
423472 	scb_val_t scbval;
424473 	char smbuf[WLC_IOCTL_SMLEN];
474
+#ifdef WL_CFG80211
475
+	struct wireless_dev *wdev = ndev_to_wdev(dev);
476
+	struct wiphy *wiphy = wdev->wiphy;
477
+	struct bcm_cfg80211 *cfg = wiphy_priv(wiphy);
478
+#endif /* WL_CFG80211 */
425479 
426480 	if (!country_code)
427481 		return error;
....@@ -434,12 +488,19 @@
434488 	}
435489 
436490 	if ((error < 0) ||
437
-			dhd_force_country_change(dev) ||
438
-	    (strncmp(country_code, cspec.country_abbrev, WLC_CNTRY_BUF_SZ) != 0)) {
491
+#ifdef OEM_ANDROID
492
+		dhd_force_country_change(dev) ||
493
+#endif /* OEM_ANDROID */
494
+	    (strncmp(country_code, cspec.ccode, WLC_CNTRY_BUF_SZ) != 0)) {
439495 
496
+#ifdef WL_CFG80211
497
+		if ((user_enforced) && (wl_get_drv_status(cfg, CONNECTED, dev))) {
498
+#else
440499 		if (user_enforced) {
500
+#endif /* WL_CFG80211 */
441501 			bzero(&scbval, sizeof(scb_val_t));
442
-			error = wldev_ioctl(dev, WLC_DISASSOC, &scbval, sizeof(scb_val_t), true);
502
+			error = wldev_ioctl_set(dev, WLC_DISASSOC,
503
+			                        &scbval, sizeof(scb_val_t));
443504 			if (error < 0) {
444505 				WLDEV_ERROR(("%s: set country failed due to Disassoc error %d\n",
445506 					__FUNCTION__, error));
....@@ -447,9 +508,11 @@
447508 			}
448509 		}
449510 
511
+		wl_cfg80211_scan_abort(cfg);
512
+
450513 		cspec.rev = revinfo;
451
-		memcpy(cspec.country_abbrev, country_code, WLC_CNTRY_BUF_SZ);
452
-		memcpy(cspec.ccode, country_code, WLC_CNTRY_BUF_SZ);
514
+		strlcpy(cspec.country_abbrev, country_code, WLC_CNTRY_BUF_SZ);
515
+		strlcpy(cspec.ccode, country_code, WLC_CNTRY_BUF_SZ);
453516 		dhd_get_customized_country_code(dev, (char *)&cspec.country_abbrev, &cspec);
454517 		error = wldev_iovar_setbuf(dev, "country", &cspec, sizeof(cspec),
455518 			smbuf, sizeof(smbuf), NULL);
....@@ -459,7 +522,7 @@
459522 			return error;
460523 		}
461524 		dhd_bus_country_set(dev, &cspec, notify);
462
-		WLDEV_ERROR(("%s: set country for %s as %s rev %d\n",
525
+		WLDEV_INFO(("%s: set country for %s as %s rev %d\n",
463526 			__FUNCTION__, country_code, cspec.ccode, cspec.rev));
464527 	}
465528 	return 0;