/
modwlan.c
1305 lines (1145 loc) · 47.7 KB
/
modwlan.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Daniel Campora
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include "simplelink.h"
#include "py/mpconfig.h"
#include "py/obj.h"
#include "py/objstr.h"
#include "py/runtime.h"
#include "py/stream.h"
#include "py/mphal.h"
#include "shared/timeutils/timeutils.h"
#include "shared/netutils/netutils.h"
#include "modnetwork.h"
#include "modusocket.h"
#include "modwlan.h"
#include "pybrtc.h"
#include "debug.h"
#if (MICROPY_PORT_HAS_TELNET || MICROPY_PORT_HAS_FTP)
#include "serverstask.h"
#endif
#include "mpirq.h"
#include "pybsleep.h"
#include "antenna.h"
/******************************************************************************
DEFINE TYPES
******************************************************************************/
// Status bits - These are used to set/reset the corresponding bits in a given variable
typedef enum{
STATUS_BIT_NWP_INIT = 0, // If this bit is set: Network Processor is
// powered up
STATUS_BIT_CONNECTION, // If this bit is set: the device is connected to
// the AP or client is connected to device (AP)
STATUS_BIT_IP_LEASED, // If this bit is set: the device has leased IP to
// any connected client
STATUS_BIT_IP_ACQUIRED, // If this bit is set: the device has acquired an IP
STATUS_BIT_SMARTCONFIG_START, // If this bit is set: the SmartConfiguration
// process is started from SmartConfig app
STATUS_BIT_P2P_DEV_FOUND, // If this bit is set: the device (P2P mode)
// found any p2p-device in scan
STATUS_BIT_P2P_REQ_RECEIVED, // If this bit is set: the device (P2P mode)
// found any p2p-negotiation request
STATUS_BIT_CONNECTION_FAILED, // If this bit is set: the device(P2P mode)
// connection to client(or reverse way) is failed
STATUS_BIT_PING_DONE // If this bit is set: the device has completed
// the ping operation
} e_StatusBits;
/******************************************************************************
DEFINE CONSTANTS
******************************************************************************/
#define CLR_STATUS_BIT_ALL(status) (status = 0)
#define SET_STATUS_BIT(status, bit) (status |= ( 1 << (bit)))
#define CLR_STATUS_BIT(status, bit) (status &= ~(1 << (bit)))
#define GET_STATUS_BIT(status, bit) (0 != (status & (1 << (bit))))
#define IS_NW_PROCSR_ON(status) GET_STATUS_BIT(status, STATUS_BIT_NWP_INIT)
#define IS_CONNECTED(status) GET_STATUS_BIT(status, STATUS_BIT_CONNECTION)
#define IS_IP_LEASED(status) GET_STATUS_BIT(status, STATUS_BIT_IP_LEASED)
#define IS_IP_ACQUIRED(status) GET_STATUS_BIT(status, STATUS_BIT_IP_ACQUIRED)
#define IS_SMART_CFG_START(status) GET_STATUS_BIT(status, STATUS_BIT_SMARTCONFIG_START)
#define IS_P2P_DEV_FOUND(status) GET_STATUS_BIT(status, STATUS_BIT_P2P_DEV_FOUND)
#define IS_P2P_REQ_RCVD(status) GET_STATUS_BIT(status, STATUS_BIT_P2P_REQ_RECEIVED)
#define IS_CONNECT_FAILED(status) GET_STATUS_BIT(status, STATUS_BIT_CONNECTION_FAILED)
#define IS_PING_DONE(status) GET_STATUS_BIT(status, STATUS_BIT_PING_DONE)
#define MODWLAN_SL_SCAN_ENABLE 1
#define MODWLAN_SL_SCAN_DISABLE 0
#define MODWLAN_SL_MAX_NETWORKS 20
#define MODWLAN_MAX_NETWORKS 20
#define MODWLAN_SCAN_PERIOD_S 3600 // 1 hour
#define MODWLAN_WAIT_FOR_SCAN_MS 1050
#define MODWLAN_CONNECTION_WAIT_MS 2
#define ASSERT_ON_ERROR(x) ASSERT((x) >= 0)
/******************************************************************************
DECLARE PRIVATE DATA
******************************************************************************/
STATIC wlan_obj_t wlan_obj = {
.mode = -1,
.status = 0,
.ip = 0,
.auth = MICROPY_PORT_WLAN_AP_SECURITY,
.channel = MICROPY_PORT_WLAN_AP_CHANNEL,
.ssid = MICROPY_PORT_WLAN_AP_SSID,
.key = MICROPY_PORT_WLAN_AP_KEY,
.mac = {0},
//.ssid_o = {0},
//.bssid = {0},
#if (MICROPY_PORT_HAS_TELNET || MICROPY_PORT_HAS_FTP)
.servers_enabled = false,
#endif
};
STATIC const mp_irq_methods_t wlan_irq_methods;
/******************************************************************************
DECLARE PUBLIC DATA
******************************************************************************/
#ifdef SL_PLATFORM_MULTI_THREADED
OsiLockObj_t wlan_LockObj;
#endif
/******************************************************************************
DECLARE PRIVATE FUNCTIONS
******************************************************************************/
STATIC void wlan_clear_data (void);
STATIC void wlan_reenable (SlWlanMode_t mode);
STATIC void wlan_servers_start (void);
STATIC void wlan_servers_stop (void);
STATIC void wlan_reset (void);
STATIC void wlan_validate_mode (uint mode);
STATIC void wlan_set_mode (uint mode);
STATIC void wlan_validate_ssid_len (uint32_t len);
STATIC void wlan_set_ssid (const char *ssid, uint8_t len, bool add_mac);
STATIC void wlan_validate_security (uint8_t auth, const char *key, uint8_t len);
STATIC void wlan_set_security (uint8_t auth, const char *key, uint8_t len);
STATIC void wlan_validate_channel (uint8_t channel);
STATIC void wlan_set_channel (uint8_t channel);
#if MICROPY_HW_ANTENNA_DIVERSITY
STATIC void wlan_validate_antenna (uint8_t antenna);
STATIC void wlan_set_antenna (uint8_t antenna);
#endif
STATIC void wlan_sl_disconnect (void);
STATIC modwlan_Status_t wlan_do_connect (const char* ssid, uint32_t ssid_len, const char* bssid, uint8_t sec,
const char* key, uint32_t key_len, int32_t timeout);
STATIC void wlan_get_sl_mac (void);
STATIC void wlan_wep_key_unhexlify (const char *key, char *key_out);
STATIC void wlan_lpds_irq_enable (mp_obj_t self_in);
STATIC void wlan_lpds_irq_disable (mp_obj_t self_in);
STATIC bool wlan_scan_result_is_unique (const mp_obj_list_t *nets, _u8 *bssid);
//*****************************************************************************
//
//! \brief The Function Handles WLAN Events
//!
//! \param[in] pWlanEvent - Pointer to WLAN Event Info
//!
//! \return None
//!
//*****************************************************************************
void SimpleLinkWlanEventHandler(SlWlanEvent_t *pWlanEvent) {
if (!pWlanEvent) {
return;
}
switch(pWlanEvent->Event)
{
case SL_WLAN_CONNECT_EVENT:
{
//slWlanConnectAsyncResponse_t *pEventData = &pWlanEvent->EventData.STAandP2PModeWlanConnected;
// copy the new connection data
//memcpy(wlan_obj.bssid, pEventData->bssid, SL_BSSID_LENGTH);
//memcpy(wlan_obj.ssid_o, pEventData->ssid_name, pEventData->ssid_len);
//wlan_obj.ssid_o[pEventData->ssid_len] = '\0';
SET_STATUS_BIT(wlan_obj.status, STATUS_BIT_CONNECTION);
#if (MICROPY_PORT_HAS_TELNET || MICROPY_PORT_HAS_FTP)
// we must reset the servers in case that the last connection
// was lost without any notification being received
servers_reset();
#endif
}
break;
case SL_WLAN_DISCONNECT_EVENT:
CLR_STATUS_BIT(wlan_obj.status, STATUS_BIT_CONNECTION);
CLR_STATUS_BIT(wlan_obj.status, STATUS_BIT_IP_ACQUIRED);
#if (MICROPY_PORT_HAS_TELNET || MICROPY_PORT_HAS_FTP)
servers_reset();
servers_wlan_cycle_power();
#endif
break;
case SL_WLAN_STA_CONNECTED_EVENT:
{
//slPeerInfoAsyncResponse_t *pEventData = &pWlanEvent->EventData.APModeStaConnected;
// get the mac address and name of the connected device
//memcpy(wlan_obj.bssid, pEventData->mac, SL_BSSID_LENGTH);
//memcpy(wlan_obj.ssid_o, pEventData->go_peer_device_name, pEventData->go_peer_device_name_len);
//wlan_obj.ssid_o[pEventData->go_peer_device_name_len] = '\0';
SET_STATUS_BIT(wlan_obj.status, STATUS_BIT_CONNECTION);
#if (MICROPY_PORT_HAS_TELNET || MICROPY_PORT_HAS_FTP)
// we must reset the servers in case that the last connection
// was lost without any notification being received
servers_reset();
#endif
}
break;
case SL_WLAN_STA_DISCONNECTED_EVENT:
CLR_STATUS_BIT(wlan_obj.status, STATUS_BIT_CONNECTION);
#if (MICROPY_PORT_HAS_TELNET || MICROPY_PORT_HAS_FTP)
servers_reset();
servers_wlan_cycle_power();
#endif
break;
case SL_WLAN_P2P_DEV_FOUND_EVENT:
// TODO
break;
case SL_WLAN_P2P_NEG_REQ_RECEIVED_EVENT:
// TODO
break;
case SL_WLAN_CONNECTION_FAILED_EVENT:
// TODO
break;
default:
break;
}
}
//*****************************************************************************
//
//! \brief This function handles network events such as IP acquisition, IP
//! leased, IP released etc.
//!
//! \param[in] pNetAppEvent - Pointer to NetApp Event Info
//!
//! \return None
//!
//*****************************************************************************
void SimpleLinkNetAppEventHandler(SlNetAppEvent_t *pNetAppEvent) {
if(!pNetAppEvent) {
return;
}
switch(pNetAppEvent->Event)
{
case SL_NETAPP_IPV4_IPACQUIRED_EVENT:
{
SlIpV4AcquiredAsync_t *pEventData = NULL;
SET_STATUS_BIT(wlan_obj.status, STATUS_BIT_IP_ACQUIRED);
// Ip Acquired Event Data
pEventData = &pNetAppEvent->EventData.ipAcquiredV4;
// Get the ip
wlan_obj.ip = pEventData->ip;
}
break;
case SL_NETAPP_IPV6_IPACQUIRED_EVENT:
break;
case SL_NETAPP_IP_LEASED_EVENT:
break;
case SL_NETAPP_IP_RELEASED_EVENT:
break;
default:
break;
}
}
//*****************************************************************************
//
//! \brief This function handles HTTP server events
//!
//! \param[in] pServerEvent - Contains the relevant event information
//! \param[in] pServerResponse - Should be filled by the user with the
//! relevant response information
//!
//! \return None
//!
//****************************************************************************
void SimpleLinkHttpServerCallback(SlHttpServerEvent_t *pHttpEvent, SlHttpServerResponse_t *pHttpResponse) {
if (!pHttpEvent) {
return;
}
switch (pHttpEvent->Event) {
case SL_NETAPP_HTTPGETTOKENVALUE_EVENT:
break;
case SL_NETAPP_HTTPPOSTTOKENVALUE_EVENT:
break;
default:
break;
}
}
//*****************************************************************************
//
//! \brief This function handles General Events
//!
//! \param[in] pDevEvent - Pointer to General Event Info
//!
//! \return None
//!
//*****************************************************************************
void SimpleLinkGeneralEventHandler(SlDeviceEvent_t *pDevEvent) {
if (!pDevEvent) {
return;
}
}
//*****************************************************************************
//
//! This function handles socket events indication
//!
//! \param[in] pSock - Pointer to Socket Event Info
//!
//! \return None
//!
//*****************************************************************************
void SimpleLinkSockEventHandler(SlSockEvent_t *pSock) {
if (!pSock) {
return;
}
switch( pSock->Event ) {
case SL_SOCKET_TX_FAILED_EVENT:
switch( pSock->socketAsyncEvent.SockTxFailData.status) {
case SL_ECLOSE:
break;
default:
break;
}
break;
case SL_SOCKET_ASYNC_EVENT:
switch(pSock->socketAsyncEvent.SockAsyncData.type) {
case SSL_ACCEPT:
break;
case RX_FRAGMENTATION_TOO_BIG:
break;
case OTHER_SIDE_CLOSE_SSL_DATA_NOT_ENCRYPTED:
break;
default:
break;
}
break;
default:
break;
}
}
//*****************************************************************************
// SimpleLink Asynchronous Event Handlers -- End
//*****************************************************************************
__attribute__ ((section (".boot")))
void wlan_pre_init (void) {
// create the wlan lock
#ifdef SL_PLATFORM_MULTI_THREADED
ASSERT(OSI_OK == sl_LockObjCreate(&wlan_LockObj, "WlanLock"));
#endif
}
void wlan_first_start (void) {
if (wlan_obj.mode < 0) {
CLR_STATUS_BIT_ALL(wlan_obj.status);
wlan_obj.mode = sl_Start(0, 0, 0);
#ifdef SL_PLATFORM_MULTI_THREADED
sl_LockObjUnlock (&wlan_LockObj);
#endif
}
// get the mac address
wlan_get_sl_mac();
}
void wlan_sl_init (int8_t mode, const char *ssid, uint8_t ssid_len, uint8_t auth, const char *key, uint8_t key_len,
uint8_t channel, uint8_t antenna, bool add_mac) {
// stop the servers
wlan_servers_stop();
// do a basic start
wlan_first_start();
// close any active connections
wlan_sl_disconnect();
// Remove all profiles
ASSERT_ON_ERROR(sl_WlanProfileDel(0xFF));
// Enable the DHCP client
uint8_t value = 1;
ASSERT_ON_ERROR(sl_NetCfgSet(SL_IPV4_STA_P2P_CL_DHCP_ENABLE, 1, 1, &value));
// Set PM policy to normal
ASSERT_ON_ERROR(sl_WlanPolicySet(SL_POLICY_PM, SL_NORMAL_POLICY, NULL, 0));
// Unregister mDNS services
ASSERT_ON_ERROR(sl_NetAppMDNSUnRegisterService(0, 0));
// Stop the internal HTTP server
sl_NetAppStop(SL_NET_APP_HTTP_SERVER_ID);
// Remove all 64 filters (8 * 8)
_WlanRxFilterOperationCommandBuff_t RxFilterIdMask;
memset ((void *)&RxFilterIdMask, 0 ,sizeof(RxFilterIdMask));
memset(RxFilterIdMask.FilterIdMask, 0xFF, 8);
ASSERT_ON_ERROR(sl_WlanRxFilterSet(SL_REMOVE_RX_FILTER, (_u8 *)&RxFilterIdMask, sizeof(_WlanRxFilterOperationCommandBuff_t)));
#if MICROPY_HW_ANTENNA_DIVERSITY
// set the antenna type
wlan_set_antenna (antenna);
#endif
// switch to the requested mode
wlan_set_mode(mode);
// stop and start again (we need to in the propper mode from now on)
wlan_reenable(mode);
// Set Tx power level for station or AP mode
// Number between 0-15, as dB offset from max power - 0 will set max power
uint8_t ucPower = 0;
if (mode == ROLE_AP) {
ASSERT_ON_ERROR(sl_WlanSet(SL_WLAN_CFG_GENERAL_PARAM_ID, WLAN_GENERAL_PARAM_OPT_AP_TX_POWER, sizeof(ucPower),
(unsigned char *)&ucPower));
// configure all parameters
wlan_set_ssid (ssid, ssid_len, add_mac);
wlan_set_security (auth, key, key_len);
wlan_set_channel (channel);
// set the country
_u8* country = (_u8*)"EU";
ASSERT_ON_ERROR(sl_WlanSet(SL_WLAN_CFG_GENERAL_PARAM_ID, WLAN_GENERAL_PARAM_OPT_COUNTRY_CODE, 2, country));
SlNetCfgIpV4Args_t ipV4;
ipV4.ipV4 = (_u32)SL_IPV4_VAL(192,168,1,1); // _u32 IP address
ipV4.ipV4Mask = (_u32)SL_IPV4_VAL(255,255,255,0); // _u32 Subnet mask for this AP
ipV4.ipV4Gateway = (_u32)SL_IPV4_VAL(192,168,1,1); // _u32 Default gateway address
ipV4.ipV4DnsServer = (_u32)SL_IPV4_VAL(192,168,1,1); // _u32 DNS server address
ASSERT_ON_ERROR(sl_NetCfgSet(SL_IPV4_AP_P2P_GO_STATIC_ENABLE, IPCONFIG_MODE_ENABLE_IPV4,
sizeof(SlNetCfgIpV4Args_t), (_u8 *)&ipV4));
SlNetAppDhcpServerBasicOpt_t dhcpParams;
dhcpParams.lease_time = 4096; // lease time (in seconds) of the IP Address
dhcpParams.ipv4_addr_start = SL_IPV4_VAL(192,168,1,2); // first IP Address for allocation.
dhcpParams.ipv4_addr_last = SL_IPV4_VAL(192,168,1,254); // last IP Address for allocation.
ASSERT_ON_ERROR(sl_NetAppStop(SL_NET_APP_DHCP_SERVER_ID)); // Stop DHCP server before settings
ASSERT_ON_ERROR(sl_NetAppSet(SL_NET_APP_DHCP_SERVER_ID, NETAPP_SET_DHCP_SRV_BASIC_OPT,
sizeof(SlNetAppDhcpServerBasicOpt_t), (_u8* )&dhcpParams)); // set parameters
ASSERT_ON_ERROR(sl_NetAppStart(SL_NET_APP_DHCP_SERVER_ID)); // Start DHCP server with new settings
// stop and start again
wlan_reenable(mode);
} else { // STA and P2P modes
ASSERT_ON_ERROR(sl_WlanSet(SL_WLAN_CFG_GENERAL_PARAM_ID, WLAN_GENERAL_PARAM_OPT_STA_TX_POWER,
sizeof(ucPower), (unsigned char *)&ucPower));
// set connection policy to Auto + Fast (tries to connect to the last connected AP)
ASSERT_ON_ERROR(sl_WlanPolicySet(SL_POLICY_CONNECTION, SL_CONNECTION_POLICY(1, 1, 0, 0, 0), NULL, 0));
}
// set current time and date (needed to validate certificates)
wlan_set_current_time (pyb_rtc_get_seconds());
// start the servers before returning
wlan_servers_start();
}
void wlan_update(void) {
#ifndef SL_PLATFORM_MULTI_THREADED
_SlTaskEntry();
#endif
}
void wlan_stop (uint32_t timeout) {
wlan_servers_stop();
#ifdef SL_PLATFORM_MULTI_THREADED
sl_LockObjLock (&wlan_LockObj, SL_OS_WAIT_FOREVER);
#endif
sl_Stop(timeout);
wlan_clear_data();
wlan_obj.mode = -1;
}
void wlan_get_mac (uint8_t *macAddress) {
if (macAddress) {
memcpy (macAddress, wlan_obj.mac, SL_MAC_ADDR_LEN);
}
}
void wlan_get_ip (uint32_t *ip) {
if (ip) {
*ip = IS_IP_ACQUIRED(wlan_obj.status) ? wlan_obj.ip : 0;
}
}
bool wlan_is_connected (void) {
return (GET_STATUS_BIT(wlan_obj.status, STATUS_BIT_CONNECTION) &&
(GET_STATUS_BIT(wlan_obj.status, STATUS_BIT_IP_ACQUIRED) || wlan_obj.mode != ROLE_STA));
}
void wlan_set_current_time (uint32_t seconds_since_2000) {
timeutils_struct_time_t tm;
timeutils_seconds_since_2000_to_struct_time(seconds_since_2000, &tm);
SlDateTime_t sl_datetime = {0};
sl_datetime.sl_tm_day = tm.tm_mday;
sl_datetime.sl_tm_mon = tm.tm_mon;
sl_datetime.sl_tm_year = tm.tm_year;
sl_datetime.sl_tm_hour = tm.tm_hour;
sl_datetime.sl_tm_min = tm.tm_min;
sl_datetime.sl_tm_sec = tm.tm_sec;
sl_DevSet(SL_DEVICE_GENERAL_CONFIGURATION, SL_DEVICE_GENERAL_CONFIGURATION_DATE_TIME, sizeof(SlDateTime_t), (_u8 *)(&sl_datetime));
}
void wlan_off_on (void) {
// no need to lock the WLAN object on every API call since the servers and the MicroPtyhon
// task have the same priority
wlan_reenable(wlan_obj.mode);
}
//*****************************************************************************
// DEFINE STATIC FUNCTIONS
//*****************************************************************************
STATIC void wlan_clear_data (void) {
CLR_STATUS_BIT_ALL(wlan_obj.status);
wlan_obj.ip = 0;
//memset(wlan_obj.ssid_o, 0, sizeof(wlan_obj.ssid));
//memset(wlan_obj.bssid, 0, sizeof(wlan_obj.bssid));
}
STATIC void wlan_reenable (SlWlanMode_t mode) {
// stop and start again
#ifdef SL_PLATFORM_MULTI_THREADED
sl_LockObjLock (&wlan_LockObj, SL_OS_WAIT_FOREVER);
#endif
sl_Stop(SL_STOP_TIMEOUT);
wlan_clear_data();
wlan_obj.mode = sl_Start(0, 0, 0);
#ifdef SL_PLATFORM_MULTI_THREADED
sl_LockObjUnlock (&wlan_LockObj);
#endif
ASSERT (wlan_obj.mode == mode);
}
STATIC void wlan_servers_start (void) {
#if (MICROPY_PORT_HAS_TELNET || MICROPY_PORT_HAS_FTP)
// start the servers if they were enabled before
if (wlan_obj.servers_enabled) {
servers_start();
}
#endif
}
STATIC void wlan_servers_stop (void) {
#if (MICROPY_PORT_HAS_TELNET || MICROPY_PORT_HAS_FTP)
// Stop all other processes using the wlan engine
if ((wlan_obj.servers_enabled = servers_are_enabled())) {
servers_stop();
}
#endif
}
STATIC void wlan_reset (void) {
wlan_servers_stop();
wlan_reenable (wlan_obj.mode);
wlan_servers_start();
}
STATIC void wlan_validate_mode (uint mode) {
if (mode != ROLE_STA && mode != ROLE_AP) {
mp_raise_ValueError(MP_ERROR_TEXT("invalid argument(s) value"));
}
}
STATIC void wlan_set_mode (uint mode) {
wlan_obj.mode = mode;
ASSERT_ON_ERROR(sl_WlanSetMode(mode));
}
STATIC void wlan_validate_ssid_len (uint32_t len) {
if (len > MODWLAN_SSID_LEN_MAX) {
mp_raise_ValueError(MP_ERROR_TEXT("invalid argument(s) value"));
}
}
STATIC void wlan_set_ssid (const char *ssid, uint8_t len, bool add_mac) {
if (ssid != NULL) {
// save the ssid
memcpy(&wlan_obj.ssid, ssid, len);
// append the last 2 bytes of the MAC address, since the use of this functionality is under our control
// we can assume that the lenght of the ssid is less than (32 - 5)
if (add_mac) {
snprintf((char *)&wlan_obj.ssid[len], sizeof(wlan_obj.ssid) - len, "-%02x%02x", wlan_obj.mac[4], wlan_obj.mac[5]);
len += 5;
}
wlan_obj.ssid[len] = '\0';
ASSERT_ON_ERROR(sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_SSID, len, (unsigned char *)wlan_obj.ssid));
}
}
STATIC void wlan_validate_security (uint8_t auth, const char *key, uint8_t len) {
if (auth != SL_SEC_TYPE_WEP && auth != SL_SEC_TYPE_WPA_WPA2) {
goto invalid_args;
}
if (auth == SL_SEC_TYPE_WEP) {
for (mp_uint_t i = strlen(key); i > 0; i--) {
if (!unichar_isxdigit(*key++)) {
goto invalid_args;
}
}
}
return;
invalid_args:
mp_raise_ValueError(MP_ERROR_TEXT("invalid argument(s) value"));
}
STATIC void wlan_set_security (uint8_t auth, const char *key, uint8_t len) {
wlan_obj.auth = auth;
ASSERT_ON_ERROR(sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_SECURITY_TYPE, sizeof(uint8_t), &auth));
if (key != NULL) {
memcpy(&wlan_obj.key, key, len);
wlan_obj.key[len] = '\0';
_u8 wep_key[32];
if (auth == SL_SEC_TYPE_WEP) {
wlan_wep_key_unhexlify(key, (char *)&wep_key);
key = (const char *)&wep_key;
len /= 2;
}
ASSERT_ON_ERROR(sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_PASSWORD, len, (unsigned char *)key));
} else {
wlan_obj.key[0] = '\0';
}
}
STATIC void wlan_validate_channel (uint8_t channel) {
if (channel < 1 || channel > 11) {
mp_raise_ValueError(MP_ERROR_TEXT("invalid argument(s) value"));
}
}
STATIC void wlan_set_channel (uint8_t channel) {
wlan_obj.channel = channel;
ASSERT_ON_ERROR(sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_CHANNEL, 1, &channel));
}
#if MICROPY_HW_ANTENNA_DIVERSITY
STATIC void wlan_validate_antenna (uint8_t antenna) {
if (antenna != ANTENNA_TYPE_INTERNAL && antenna != ANTENNA_TYPE_EXTERNAL) {
mp_raise_ValueError(MP_ERROR_TEXT("invalid argument(s) value"));
}
}
STATIC void wlan_set_antenna (uint8_t antenna) {
wlan_obj.antenna = antenna;
antenna_select(antenna);
}
#endif
STATIC void wlan_sl_disconnect (void) {
// Device in station-mode. Disconnect previous connection if any
// The function returns 0 if 'Disconnected done', negative number if already
// disconnected Wait for 'disconnection' event if 0 is returned, Ignore
// other return-codes
if (0 == sl_WlanDisconnect()) {
while (IS_CONNECTED(wlan_obj.status)) {
mp_hal_delay_ms(MODWLAN_CONNECTION_WAIT_MS);
wlan_update();
}
}
}
STATIC modwlan_Status_t wlan_do_connect (const char* ssid, uint32_t ssid_len, const char* bssid, uint8_t sec,
const char* key, uint32_t key_len, int32_t timeout) {
SlSecParams_t secParams;
secParams.Key = (_i8*)key;
secParams.KeyLen = ((key != NULL) ? key_len : 0);
secParams.Type = sec;
// first close any active connections
wlan_sl_disconnect();
if (!sl_WlanConnect((_i8*)ssid, ssid_len, (_u8*)bssid, &secParams, NULL)) {
// wait for the WLAN Event
uint32_t waitForConnectionMs = 0;
while (timeout && !IS_CONNECTED(wlan_obj.status)) {
mp_hal_delay_ms(MODWLAN_CONNECTION_WAIT_MS);
waitForConnectionMs += MODWLAN_CONNECTION_WAIT_MS;
if (timeout > 0 && waitForConnectionMs > timeout) {
return MODWLAN_ERROR_TIMEOUT;
}
wlan_update();
}
return MODWLAN_OK;
}
return MODWLAN_ERROR_INVALID_PARAMS;
}
STATIC void wlan_get_sl_mac (void) {
// Get the MAC address
uint8_t macAddrLen = SL_MAC_ADDR_LEN;
sl_NetCfgGet(SL_MAC_ADDRESS_GET, NULL, &macAddrLen, wlan_obj.mac);
}
STATIC void wlan_wep_key_unhexlify (const char *key, char *key_out) {
byte hex_byte = 0;
for (mp_uint_t i = strlen(key); i > 0 ; i--) {
hex_byte += unichar_xdigit_value(*key++);
if (i & 1) {
hex_byte <<= 4;
} else {
*key_out++ = hex_byte;
hex_byte = 0;
}
}
}
STATIC void wlan_lpds_irq_enable (mp_obj_t self_in) {
wlan_obj_t *self = self_in;
self->irq_enabled = true;
}
STATIC void wlan_lpds_irq_disable (mp_obj_t self_in) {
wlan_obj_t *self = self_in;
self->irq_enabled = false;
}
STATIC int wlan_irq_flags (mp_obj_t self_in) {
wlan_obj_t *self = self_in;
return self->irq_flags;
}
STATIC bool wlan_scan_result_is_unique (const mp_obj_list_t *nets, _u8 *bssid) {
for (int i = 0; i < nets->len; i++) {
// index 1 in the list is the bssid
mp_obj_str_t *_bssid = (mp_obj_str_t *)((mp_obj_tuple_t *)nets->items[i])->items[1];
if (!memcmp (_bssid->data, bssid, SL_BSSID_LENGTH)) {
return false;
}
}
return true;
}
/******************************************************************************/
// MicroPython bindings; WLAN class
/// \class WLAN - WiFi driver
STATIC mp_obj_t wlan_init_helper(wlan_obj_t *self, const mp_arg_val_t *args) {
// get the mode
int8_t mode = args[0].u_int;
wlan_validate_mode(mode);
// get the ssid
size_t ssid_len = 0;
const char *ssid = NULL;
if (args[1].u_obj != NULL) {
ssid = mp_obj_str_get_data(args[1].u_obj, &ssid_len);
wlan_validate_ssid_len(ssid_len);
}
// get the auth config
uint8_t auth = SL_SEC_TYPE_OPEN;
size_t key_len = 0;
const char *key = NULL;
if (args[2].u_obj != mp_const_none) {
mp_obj_t *sec;
mp_obj_get_array_fixed_n(args[2].u_obj, 2, &sec);
auth = mp_obj_get_int(sec[0]);
key = mp_obj_str_get_data(sec[1], &key_len);
wlan_validate_security(auth, key, key_len);
}
// get the channel
uint8_t channel = args[3].u_int;
wlan_validate_channel(channel);
// get the antenna type
uint8_t antenna = 0;
#if MICROPY_HW_ANTENNA_DIVERSITY
antenna = args[4].u_int;
wlan_validate_antenna(antenna);
#endif
// initialize the wlan subsystem
wlan_sl_init(mode, (const char *)ssid, ssid_len, auth, (const char *)key, key_len, channel, antenna, false);
return mp_const_none;
}
STATIC const mp_arg_t wlan_init_args[] = {
{ MP_QSTR_id, MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_mode, MP_ARG_INT, {.u_int = ROLE_STA} },
{ MP_QSTR_ssid, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
{ MP_QSTR_auth, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
{ MP_QSTR_channel, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 1} },
#if MICROPY_HW_ANTENNA_DIVERSITY
{ MP_QSTR_antenna, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = ANTENNA_TYPE_INTERNAL} },
#endif
};
STATIC mp_obj_t wlan_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
// parse args
mp_map_t kw_args;
mp_map_init_fixed_table(&kw_args, n_kw, all_args + n_args);
mp_arg_val_t args[MP_ARRAY_SIZE(wlan_init_args)];
mp_arg_parse_all(n_args, all_args, &kw_args, MP_ARRAY_SIZE(args), wlan_init_args, args);
// setup the object
wlan_obj_t *self = &wlan_obj;
self->base.type = (mp_obj_t)&mod_network_nic_type_wlan;
// give it to the sleep module
pyb_sleep_set_wlan_obj(self);
if (n_args > 1 || n_kw > 0) {
// check the peripheral id
if (args[0].u_int != 0) {
mp_raise_OSError(MP_ENODEV);
}
// start the peripheral
wlan_init_helper(self, &args[1]);
}
return (mp_obj_t)self;
}
STATIC mp_obj_t wlan_init(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
// parse args
mp_arg_val_t args[MP_ARRAY_SIZE(wlan_init_args) - 1];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), &wlan_init_args[1], args);
return wlan_init_helper(pos_args[0], args);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(wlan_init_obj, 1, wlan_init);
STATIC mp_obj_t wlan_scan(mp_obj_t self_in) {
STATIC const qstr wlan_scan_info_fields[] = {
MP_QSTR_ssid, MP_QSTR_bssid, MP_QSTR_sec, MP_QSTR_channel, MP_QSTR_rssi
};
// check for correct wlan mode
if (wlan_obj.mode == ROLE_AP) {
mp_raise_OSError(MP_EPERM);
}
Sl_WlanNetworkEntry_t wlanEntry;
mp_obj_t nets = mp_obj_new_list(0, NULL);
uint8_t _index = 0;
// trigger a new network scan
uint32_t scanSeconds = MODWLAN_SCAN_PERIOD_S;
ASSERT_ON_ERROR(sl_WlanPolicySet(SL_POLICY_SCAN , MODWLAN_SL_SCAN_ENABLE, (_u8 *)&scanSeconds, sizeof(scanSeconds)));
// wait for the scan to complete
mp_hal_delay_ms(MODWLAN_WAIT_FOR_SCAN_MS);
do {
if (sl_WlanGetNetworkList(_index++, 1, &wlanEntry) <= 0) {
break;
}
// we must skip any duplicated results
if (!wlan_scan_result_is_unique(nets, wlanEntry.bssid)) {
continue;
}
mp_obj_t tuple[5];
tuple[0] = mp_obj_new_str((const char *)wlanEntry.ssid, wlanEntry.ssid_len);
tuple[1] = mp_obj_new_bytes((const byte *)wlanEntry.bssid, SL_BSSID_LENGTH);
// 'normalize' the security type
if (wlanEntry.sec_type > 2) {
wlanEntry.sec_type = 2;
}
tuple[2] = mp_obj_new_int(wlanEntry.sec_type);
tuple[3] = mp_const_none;
tuple[4] = mp_obj_new_int(wlanEntry.rssi);
// add the network to the list
mp_obj_list_append(nets, mp_obj_new_attrtuple(wlan_scan_info_fields, 5, tuple));
} while (_index < MODWLAN_SL_MAX_NETWORKS);
return nets;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(wlan_scan_obj, wlan_scan);
STATIC mp_obj_t wlan_connect(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
STATIC const mp_arg_t allowed_args[] = {
{ MP_QSTR_ssid, MP_ARG_REQUIRED | MP_ARG_OBJ, },
{ MP_QSTR_auth, MP_ARG_OBJ, {.u_obj = mp_const_none} },
{ MP_QSTR_bssid, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
{ MP_QSTR_timeout, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
};
// check for the correct wlan mode
if (wlan_obj.mode == ROLE_AP) {
mp_raise_OSError(MP_EPERM);
}
// parse args
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
// get the ssid
size_t ssid_len;
const char *ssid = mp_obj_str_get_data(args[0].u_obj, &ssid_len);
wlan_validate_ssid_len(ssid_len);
// get the auth config
uint8_t auth = SL_SEC_TYPE_OPEN;
size_t key_len = 0;
const char *key = NULL;
if (args[1].u_obj != mp_const_none) {
mp_obj_t *sec;
mp_obj_get_array_fixed_n(args[1].u_obj, 2, &sec);
auth = mp_obj_get_int(sec[0]);
key = mp_obj_str_get_data(sec[1], &key_len);
wlan_validate_security(auth, key, key_len);
// convert the wep key if needed
if (auth == SL_SEC_TYPE_WEP) {
_u8 wep_key[32];
wlan_wep_key_unhexlify(key, (char *)&wep_key);
key = (const char *)&wep_key;
key_len /= 2;
}
}
// get the bssid
const char *bssid = NULL;
if (args[2].u_obj != mp_const_none) {
bssid = mp_obj_str_get_str(args[2].u_obj);
}
// get the timeout
int32_t timeout = -1;
if (args[3].u_obj != mp_const_none) {
timeout = mp_obj_get_int(args[3].u_obj);
}
// connect to the requested access point
modwlan_Status_t status;
status = wlan_do_connect (ssid, ssid_len, bssid, auth, key, key_len, timeout);
if (status == MODWLAN_ERROR_TIMEOUT) {
mp_raise_OSError(MP_ETIMEDOUT);
} else if (status == MODWLAN_ERROR_INVALID_PARAMS) {
mp_raise_ValueError(MP_ERROR_TEXT("invalid argument(s) value"));
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(wlan_connect_obj, 1, wlan_connect);
STATIC mp_obj_t wlan_disconnect(mp_obj_t self_in) {
wlan_sl_disconnect();
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(wlan_disconnect_obj, wlan_disconnect);
STATIC mp_obj_t wlan_isconnected(mp_obj_t self_in) {
return wlan_is_connected() ? mp_const_true : mp_const_false;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(wlan_isconnected_obj, wlan_isconnected);
STATIC mp_obj_t wlan_ifconfig(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
STATIC const mp_arg_t wlan_ifconfig_args[] = {
{ MP_QSTR_id, MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_config, MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
};
// parse args
mp_arg_val_t args[MP_ARRAY_SIZE(wlan_ifconfig_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(args), wlan_ifconfig_args, args);
// check the interface id
if (args[0].u_int != 0) {
mp_raise_OSError(MP_EPERM);
}
// get the configuration
if (args[1].u_obj == MP_OBJ_NULL) {
// get