-
Notifications
You must be signed in to change notification settings - Fork 4
/
Copy pathch341a_bitbang_wch_dirty.c
1177 lines (1015 loc) · 43 KB
/
ch341a_bitbang_wch_dirty.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
/*
* avrdude - A Downloader/Uploader for AVR device programmers
*
* avrdude support for CH341
* Copyright (C) 2016 Alexey Sadkov
* Copyright (C) 2017 maxxproff
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Interface to the CH341A programmer.
*
*/
#include "ac_cfg.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/time.h>
#include <unistd.h>
#include "avrdude.h"
#include "libavrdude.h"
#include "ch341a_bitbang_wch.h"
#include "usbdevs.h"
#include "CH341DLL.H"
//HANDLE Ch341Handle;
#define LIBUSB_ENDPOINT_OUT 0x02
#define LIBUSB_ENDPOINT_IN 0x82
/*#if defined(HAVE_LIBUSB_1_0)
#ifdef HAVE_LIBUSB_1_0
# define USE_LIBUSB_1_0
# if defined(HAVE_LIBUSB_1_0_LIBUSB_H)
# include <libusb-1.0/libusb.h>
# else
# include <libusb.h>
# endif
#endif
#ifdef USE_LIBUSB_1_0
static libusb_context *ctx = NULL;
static int libusb_to_errno(int result)
{
switch (result) {
case LIBUSB_SUCCESS:
return 0;
case LIBUSB_ERROR_IO:
return EIO;
case LIBUSB_ERROR_INVALID_PARAM:
return EINVAL;
case LIBUSB_ERROR_ACCESS:
return EACCES;
case LIBUSB_ERROR_NO_DEVICE:
return ENXIO;
case LIBUSB_ERROR_NOT_FOUND:
return ENOENT;
case LIBUSB_ERROR_BUSY:
return EBUSY;
#ifdef ETIMEDOUT
case LIBUSB_ERROR_TIMEOUT:
return ETIMEDOUT;
#endif
#ifdef EOVERFLOW
case LIBUSB_ERROR_OVERFLOW:
return EOVERFLOW;
#endif
case LIBUSB_ERROR_PIPE:
return EPIPE;
case LIBUSB_ERROR_INTERRUPTED:
return EINTR;
case LIBUSB_ERROR_NO_MEM:
return ENOMEM;
case LIBUSB_ERROR_NOT_SUPPORTED:
return ENOSYS;
default:
return ERANGE;
}
}
#endif
*/
/*
* Private data for this programmer.
*/
struct pdata
{
//libusb_device_handle *usbhandle;
HANDLE *usbhandle;
int sckfreq_hz;
};
#define PDATA(pgm) ((struct pdata *)(pgm->cookie))
// ----------------------------------------------------------------------
/* Prototypes */
static void ch341a_bitbang_wch_setup(PROGRAMMER * pgm);
static void ch341a_bitbang_wch_teardown(PROGRAMMER * pgm);
static int ch341a_bitbang_wch_open(PROGRAMMER * pgm, char * port);
static void ch341a_bitbang_wch_close(PROGRAMMER * pgm);
static int ch341a_bitbang_wch_initialize(PROGRAMMER * pgm, AVRPART * p);
static int ch341a_bitbang_wch_spi_cmd(PROGRAMMER * pgm, const unsigned char *cmd, unsigned char *res);
static int ch341a_bitbang_wch_spi(PROGRAMMER * pgm, const unsigned char *in, unsigned char *out, int size);
static int ch341a_bitbang_wch_spi_program_enable(PROGRAMMER * pgm, AVRPART * p);
static int ch341a_bitbang_wch_spi_chip_erase(PROGRAMMER * pgm, AVRPART * p);
//static int ch341a_bitbang_wch_spi_transfer(PROGRAMMER * pgm, const unsigned char *cmd, unsigned char *res);
// dummy functions
static void ch341a_bitbang_wch_disable(PROGRAMMER * pgm);
static void ch341a_bitbang_wch_enable(PROGRAMMER * pgm);
static void ch341a_bitbang_wch_display(PROGRAMMER * pgm, const char * p);
BOOL MegaSpiOutInData_wch(PROGRAMMER * pgm, ULONG OutLen, PVOID DataBuf, PVOID DataBufOut );
//BOOL CH341WriteRead(PROGRAMMER * pgm, ULONG iWriteLength, PVOID iWriteBuffer, ULONG iReadStep, ULONG iReadTimes, PULONG oReadLength, PVOID oReadBuffer);
BOOL MegaSpiEnable_wch( PROGRAMMER * pgm );
//BOOL SpiResetMega( PROGRAMMER * pgm );
//BOOL CH341SetStream_bitbang( PROGRAMMER * pgm, ULONG Mode );
//static int CH341USBTransfer_bitbangPart2(PROGRAMMER * pgm, enum libusb_endpoint_direction dir, unsigned char *buff, unsigned int size);
#define mUSBI0_MAX_NUMBER 16
#define mMAX_BUFFER_LENGTH 0x1000
ULONG Ch341index;
BOOL Ch341State;
HANDLE Ch341Handle;
//#include <usb.h>
//int CH341_write_data( PROGRAMMER * pgm, unsigned char *buf, unsigned long size );
//bool CH341_write_read ( PROGRAMMER * pgm, unsigned long write_length, unsigned char * write_buffer, unsigned long read_step, unsigned long read_times, unsigned long *read_length, unsigned char *read_buffer );
//bool CH341_write_read_new ( PROGRAMMER * pgm, unsigned long write_length, unsigned char * write_buffer, unsigned long read_step, unsigned long read_times, unsigned long *read_length, unsigned char *read_buffer );
//static int usb_bulk_io(PROGRAMMER * pgm, int ep, char *bytes, int size, int timeout);
//static int usb_bulk_io(libusb_device_handle * dev, int ep, char *bytes, int size, int timeout);
/*struct sUSBIO_context
{
struct usb_device *dev;
//struct PROGRAMMER * pgm;
int write_timeout;
int read_timeout;
int out_ep;
int in_ep;
int index;
unsigned char USBIO_ver_ic;
unsigned char USBIO_stream_mode;
};*/
//struct sUSBIO_context sUSBIO[ mUSBI0_MAX_NUMBER ];
//usb_dev_handle *usb_dev[ mUSBI0_MAX_NUMBER ];
/* ch341 requires LSB first, swap the bit order before send and after receive */
/* static unsigned char swap_byte(unsigned char byte) {
byte = ((byte >> 1) & 0x55) | ((byte << 1) & 0xaa);
byte = ((byte >> 2) & 0x33) | ((byte << 2) & 0xcc);
byte = ((byte >> 4) & 0x0f) | ((byte << 4) & 0xf0);
return byte;
} */
//static int CH341USBTransfer_WCHPart(PROGRAMMER * pgm, enum libusb_endpoint_direction dir, unsigned char *buff, unsigned int size) {
static int CH341USBTransfer_WCHPart(PROGRAMMER * pgm, int dir, unsigned char *buff, unsigned int bytestransferred) {
int ret;
//int bytestransferred;
//if (!PDATA(pgm)->usbhandle)
//return 0;
//if ((ret = libusb_bulk_transfer(PDATA(pgm)->usbhandle, CH341A_USB_BULK_ENDPOINT | dir, buff, size, &bytestransferred, CH341A_USB_TIMEOUT))) {
if ( dir == LIBUSB_ENDPOINT_OUT )
ret = CH341WriteData( Ch341index, buff, (PULONG)&bytestransferred );
if ( dir == LIBUSB_ENDPOINT_IN )
ret = CH341ReadData( Ch341index, buff, (PULONG)&bytestransferred );
if ( ret == FALSE )
{
//avrdude_message(MSG_INFO, "%s: Error: libusb_bulk_transfer for IN_EP failed: %d (%s)\n", progname, ret, libusb_error_name(ret));
avrdude_message(MSG_INFO, "Error: CH341USBTransfer_WCHPart returns FALSE\n");
return -1;
}
avrdude_message(MSG_DEBUG, "CH341USBTransfer_WCHPart: bytestransferred = %d\n", (int)bytestransferred);
return bytestransferred;
}
//static bool CH341USBTransfer_WCH(PROGRAMMER * pgm, enum libusb_endpoint_direction dir, unsigned char *buff, unsigned int size)
static bool CH341USBTransfer_WCH(PROGRAMMER * pgm, int dir, unsigned char *buff, unsigned int size)
{
int pos = 0, bytestransferred;
while (size) {
bytestransferred = CH341USBTransfer_WCHPart(pgm, dir, buff + pos, size);
if (bytestransferred <= 0)
return false;
pos += bytestransferred;
size -= bytestransferred;
}
return true;
}
/* The assumed map between UIO command bits, pins on CH341A chip and pins on SPI chip:
* UIO CH341A SPI CH341A SPI name
* 0 D0/15 CS/1 (CS0)
* 1 D1/16 unused (CS1)
* 2 D2/17 unused (CS2)
* 3 D3/18 SCK/6 (DCK)
* 4 D4/19 unused (DOUT2)
* 5 D5/20 SI/5 (DOUT)
* - The UIO stream commands seem to only have 6 bits of output, and D6/D7 are the SPI inputs,
* mapped as follows:
* D6/21 unused (DIN2)
* D7/22 SO/2 (DIN)
*/
bool CH341ChipSelect_bitbang_wch(PROGRAMMER * pgm, unsigned int cs, bool enable) {
unsigned char res[4];
unsigned char cmd[4];
//int bytestransferred = 3;
memset(cmd, 0, sizeof(cmd));
memset(res, 0, sizeof(res));
avrdude_message(MSG_DEBUG, "%s: ch341a_bitbang_wch_ChipSelect()\n", progname);
if (cs > 2) {
avrdude_message(MSG_INFO, "%s: Error: invalid CS pin %d, 0~2 are available\n", progname, cs);
return false;
}
cmd[0] = CH341A_CMD_UIO_STREAM;
if (enable)
//cmd[1] = CH341A_CMD_UIO_STM_OUT | ( 0x37 & ~(1<<cs));
cmd[1] = CH341A_CMD_UIO_STM_OUT | 0x00;
else
//cmd[1] = CH341A_CMD_UIO_STM_OUT | 0x37;
cmd[1] = CH341A_CMD_UIO_STM_OUT | 0x01;
//cmd[2] = CH341A_CMD_UIO_STM_DIR | 0x3F;
//cmd[3] = CH341A_CMD_UIO_STM_END;
cmd[2] = CH341A_CMD_UIO_STM_END;
//return CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, cmd, 4);
return CH341USBTransfer_WCH(pgm, LIBUSB_ENDPOINT_OUT, cmd, 3);
//return CH341WriteData( 0, cmd, (PULONG)&bytestransferred);
}
static int ch341a_bitbang_wch_open(PROGRAMMER * pgm, char * port) {
/*LNODEID usbpid = lfirst(pgm->usbpid);
int pid, vid, j, r;
int errorCode = USB_ERROR_NOTFOUND;
libusb_device_handle *handle = NULL;
static int didUsbInit = 0;
avrdude_message(MSG_DEBUG, "%s: ch341a_bitbang_wch_open(\"%s\")\n", progname, port);
if(!didUsbInit) {
didUsbInit = 1;
libusb_init(&ctx);
}
if (usbpid) {
pid = *(int *)(ldata(usbpid));
if (lnext(usbpid))
avrdude_message(MSG_INFO, "%s: Warning: using PID 0x%04x, ignoring remaining PIDs in list\n",
progname, pid);
} else {
pid = CH341A_PID;
}
vid = pgm->usbvid? pgm->usbvid: CH341A_VID;
libusb_device **dev_list;
int dev_list_len = libusb_get_device_list(ctx, &dev_list);
for (j=0; j<dev_list_len; ++j) {
libusb_device *dev = dev_list[j];
struct libusb_device_descriptor descriptor;
libusb_get_device_descriptor(dev, &descriptor);
if (descriptor.idVendor == vid && descriptor.idProduct == pid) {
r = libusb_open(dev, &handle);
if (!handle) {
errorCode = USB_ERROR_ACCESS;
avrdude_message(MSG_INFO, "%s: Warning: cannot open USB device: %s\n",
progname, strerror(libusb_to_errno(r)));
continue;
}
}
}
libusb_free_device_list(dev_list,1);
if (handle != NULL) {
errorCode = 0;
PDATA(pgm)->usbhandle = handle;
}
if (errorCode!= 0) {
avrdude_message(MSG_INFO, "%s: error: could not find USB device with vid=0x%x pid=0x%x",
progname, vid, pid);
avrdude_message(MSG_INFO, "\n");
return -1;
}
if ((r = libusb_claim_interface(PDATA(pgm)->usbhandle, 0))) {
fprintf(stderr, "%s: error: libusb_claim_interface failed: %d (%s)\n", progname, r, libusb_error_name(r));
libusb_close(PDATA(pgm)->usbhandle);
libusb_exit(ctx);
} */
int pid, vid;
//int ret;
ULONG i;
pid = CH341A_PID;
vid = CH341A_VID;
for( i = 0; i != mCH341_MAX_NUMBER; i++)
{
Ch341index = i;
Ch341Handle = CH341OpenDevice( Ch341index );
avrdude_message(MSG_DEBUG, "CH341OpenDevice(%d) = %d \n", Ch341index, (int)Ch341Handle);
if ( Ch341Handle == INVALID_HANDLE_VALUE )
{
Ch341State = FALSE;
}
else
{
//CH341SetExclusive( Ch341index, TRUE );
Ch341State = TRUE;
break;
}
}
if( Ch341State == FALSE )
//ret = (int)CH341OpenDevice(0);
//if ( ret < 0 )
{
avrdude_message(MSG_INFO, "%s: error: could not open USB device with vid=0x%x pid=0x%x", progname, vid, pid);
avrdude_message(MSG_INFO, "\n");
return -1;
}
else return 0;
}
static void ch341a_bitbang_wch_close(PROGRAMMER * pgm) {
avrdude_message(MSG_DEBUG, "%s: ch341a_bitbang_wch_close()\n", progname);
CH341ChipSelect_bitbang_wch(pgm, 0,false);
/* if (PDATA(pgm)->usbhandle!=NULL) {
libusb_release_interface(PDATA(pgm)->usbhandle, 0);
libusb_close(PDATA(pgm)->usbhandle);
}
libusb_exit(ctx); */
CH341CloseDevice(Ch341index);
}
static int ch341a_bitbang_wch_initialize(PROGRAMMER * pgm, AVRPART * p) {
avrdude_message(MSG_DEBUG, "%s: ch341a_bitbang_wch_initialize()\n", progname);
//CH341SetStream_bitbang( pgm, 0x81 );
//CH341OpenDevice(0);
CH341SetStream( Ch341index, 0x81 );
MegaSpiEnable_wch( pgm );
CH341ChipSelect_bitbang_wch(pgm, 0,false);
usleep(20 * 1000);
CH341ChipSelect_bitbang_wch(pgm, 0,true);
return pgm->program_enable(pgm, p);
}
/* static int ch341a_bitbang_wch_spi_transfer(PROGRAMMER * pgm, const unsigned char *cmd, unsigned char *res) {
unsigned char pkt[CH341A_PACKET_LENGTH];
unsigned int i;
//int ret;
//int bytestransferred;
int size=sizeof(cmd);
avrdude_message(MSG_DEBUG, "%s: ch341a_bitbang_wch_spi_transfer(0x%02x, 0x%02x, 0x%02x, 0x%02x)%s",
progname, cmd[0], cmd[1], cmd[2], cmd[3], verbose > 3? "...\n": "\n");
if (size > CH341A_PACKET_LENGTH - 1)
size = CH341A_PACKET_LENGTH - 1;
for (i = 0; i < size; i++) {
pkt[i] = cmd[i];
}
if (CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, pkt, size)<=0 || CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_IN, pkt, size)<=0) {
avrdude_message(MSG_INFO, "%s: failed to transfer data to/from CH341\n", progname);
return -1;
}
for (i = 0; i < size; i++) {
res[i] = pkt[i];
}
return size;
} */
static int ch341a_bitbang_wch_spi_cmd(PROGRAMMER * pgm, const unsigned char *cmd, unsigned char *res) {
return pgm->spi(pgm, cmd, res, 4);
}
static int ch341a_bitbang_wch_spi(PROGRAMMER * pgm, const unsigned char *in, unsigned char *out, int size) {
//unsigned char DataBuf[CH341A_PACKET_LENGTH];
//unsigned int i;
if (!size)
return 0;
if (size > CH341A_PACKET_LENGTH)
size = CH341A_PACKET_LENGTH;
//pkt[0] = CH341A_CMD_SPI_STREAM;
//for (i = 0; i < size; i++)
//DataBuf[i] = swap_byte(in[i]);
//DataBuf[i] = in[i];
//MegaSpiOutInData_wch(pgm, OutLen, DataBuf );
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, pkt, size +1))
//{
// fprintf(stderr, "Error: failed to transfer data to CH341\n");
// return -1;
//}
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_IN, pkt, size))
//{
// fprintf(stderr, "Error: failed to transfer data from CH341\n");
// return -1;
//}
//if (!MegaSpiOutInData_wch(pgm, (ULONG)size, (PVOID)DataBuf))
if (!MegaSpiOutInData_wch(pgm, (ULONG)size, (PVOID)in, out))
{
fprintf(stderr, "Error: failed to transfer data to or from CH341\n");
return -1;
}
//for (i = 0; i < size; i++)
//out[i] = swap_byte(DataBuf[i]);
//out[i] = in[i];
return size;
}
static int ch341a_bitbang_wch_spi_program_enable(PROGRAMMER * pgm, AVRPART * p) {
unsigned char res[4];
unsigned char cmd[4];
memset(cmd, 0, sizeof(cmd));
memset(res, 0, sizeof(res));
cmd[0] = 0;
avrdude_message(MSG_DEBUG, "%s: ch341a_bitbang_wch_program_enable() %s\n",
progname, p->op[AVR_OP_PGM_ENABLE]);
if (p->op[AVR_OP_PGM_ENABLE] == NULL) {
avrdude_message(MSG_INFO, "program enable instruction not defined for part \"%s\"\n", p->desc);
return -1;
}
avr_set_bits(p->op[AVR_OP_PGM_ENABLE], cmd);
avrdude_message(MSG_DEBUG, "program_enable(): sending command. Cmd = %x %x %x %x \n", (int)cmd[0], (int)cmd[1], (int)cmd[2], (int)cmd[3]);
pgm->cmd(pgm, cmd, res);
avrdude_message(MSG_DEBUG, "program_enable(): receiving. Resp = %x %x %x %x \n", (int)res[0], (int)res[1], (int)res[2], (int)res[3]);
// check for sync character
if (res[2] != cmd[1])
return -2;
return 0;
}
static int ch341a_bitbang_wch_spi_chip_erase(struct programmer_t * pgm, AVRPART * p) {
unsigned char cmd[4];
unsigned char res[4];
if (p->op[AVR_OP_CHIP_ERASE] == NULL) {
avrdude_message(MSG_INFO, "chip erase instruction not defined for part \"%s\"\n", p->desc);
return -1;
}
memset(cmd, 0, sizeof(cmd));
avr_set_bits(p->op[AVR_OP_CHIP_ERASE], cmd);
pgm->cmd(pgm, cmd, res);
usleep(p->chip_erase_delay);
pgm->initialize(pgm, p);
return 0;
}
void ch341a_bitbang_wch_initpgm(PROGRAMMER * pgm) {
strcpy(pgm->type, "ch341a_bitbang_wch");
/*
* mandatory functions
*/
pgm->initialize = ch341a_bitbang_wch_initialize;
pgm->display = ch341a_bitbang_wch_display;
pgm->enable = ch341a_bitbang_wch_enable;
pgm->disable = ch341a_bitbang_wch_disable;
pgm->program_enable = ch341a_bitbang_wch_spi_program_enable;
pgm->chip_erase = ch341a_bitbang_wch_spi_chip_erase;
pgm->cmd = ch341a_bitbang_wch_spi_cmd;
pgm->spi = ch341a_bitbang_wch_spi;
pgm->open = ch341a_bitbang_wch_open;
pgm->close = ch341a_bitbang_wch_close;
pgm->read_byte = avr_read_byte_default;
pgm->write_byte = avr_write_byte_default;
/*
* optional functions
*/
//pgm->paged_write = ch341a_bitbang_wch_spi_paged_write;
//pgm->paged_load = ch341a_bitbang_wch_spi_paged_load;
pgm->setup = ch341a_bitbang_wch_setup;
pgm->teardown = ch341a_bitbang_wch_teardown;
}
/* Interface - management */
static void ch341a_bitbang_wch_setup(PROGRAMMER * pgm) {
if ((pgm->cookie = malloc(sizeof(struct pdata))) == 0) {
avrdude_message(MSG_INFO, "%s: ch341a_bitbang_wch_setup(): Out of memory allocating private data\n",
progname);
exit(1);
}
memset(pgm->cookie, 0, sizeof(struct pdata));
}
static void ch341a_bitbang_wch_teardown(PROGRAMMER * pgm) {
free(pgm->cookie);
}
/* Dummy functions */
static void ch341a_bitbang_wch_disable(PROGRAMMER * pgm) {
/* Do nothing. */
return;
}
static void ch341a_bitbang_wch_enable(PROGRAMMER * pgm) {
/* Do nothing. */
return;
}
static void ch341a_bitbang_wch_display(PROGRAMMER * pgm, const char * p) {
return;
}
// ----------------------------------------------------------------------
//#else /* HAVE_LIBUSB */
/* static int ch341a_bitbang_wch_nousb_open (struct programmer_t *pgm, char * name) {
avrdude_message(MSG_INFO, "%s: error: no usb support. please compile again with libusb installed.\n",
progname);
return -1;
}
void ch341a_bitbang_wch_initpgm(PROGRAMMER * pgm) {
strcpy(pgm->type, "ch341a_bitbang_wch");
pgm->open = ch341a_bitbang_wch_nousb_open;
}*/
//#endif /* HAVE_LIBUSB */
const char ch341a_bitbang_wch_desc[] = "Driver for \"ch341a_bitbang_wch\"-type programmers";
//#define DELAY_US 4
#define DELAY_US 10 //Edit DELAY_US for tune bitbang speed.
BOOL MegaSpiOutInData_wch(
PROGRAMMER * pgm,
ULONG OutLen, // Output data length
PVOID DataBufIn,
PVOID DataBufOut ) // The output data buffer SPI data returned
{
PUCHAR p;
ULONG i, j, k;
//ULONG zz;
ULONG zzz;
//ULONG zzzz;
UCHAR c, tem;
UCHAR mBuffer[ 512 ];
//UCHAR zzzzBuffer[ 4 ];
//if( MegaSpiEnable_wch( pgm ) == FALSE) // ?ʼ»¯CH341µÄSPI
//return FALSE;
//if( SpiResetMega( pgm ) == FALSE )
//return FALSE; // ¸´Î»MEGA8
//Sleep( 200 );
for( zzz = 0; zzz != 512; zzz++ )
{
mBuffer[ zzz ] = 0xff;
}
// 202334066 on? + 6.95us - 5.85us
p = (PUCHAR)DataBufIn;
k = 0;
//zzzz = 0;
//avrdude_message(MSG_DEBUG, "OutLen = %x\n", (int)OutLen);
for( i = 0; i != OutLen; i++ )
{
//if (zzzz > 1)
//zzzz = 0;
tem = *p;
//tem = 0xac;
//if (tem == 0x00)
//tem = 0xff;
// FOR transfer in cycle
//k = 0; // FOR transfer in cycle
//avrdude_message(MSG_DEBUG, "i = %x\n", (int)i);
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: tem = %x\n", (int)tem);
mBuffer[ k++ ] = CH341A_CMD_UIO_STREAM; // Command code
//mBuffer[ k ] = CH341A_CMD_UIO_STREAM; // Command code
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: mBuffer[%x] = %x\n", (int)k-1, (int)mBuffer[k-1]);
for( j = 0; j != 4; j++ )
{
c = tem & 0x80 ? 0x20 : 0; // D5 Data output
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | c; // D3=0, I/O_CLOCK=LOW
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_US | DELAY_US;
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | c | 0x08; // D3=1, I/O_CLOCK=HIGH
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_IN; // input from D7
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_US | DELAY_US;
tem <<= 1;
}
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | c | 0x00; // D3=0, I/O_CLOCK=LOW
// mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | 0x20;
// mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | 0x00;
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_END; // The current command pack ends prematurely
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: k-1 = %x\n", (int)k-1);
k += CH341A_PACKET_LENGTH - 1;
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: k = %x\n", (int)k);
k &= ~ ( CH341A_PACKET_LENGTH - 1 );
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: k-1 = %x\n", (int)k-1);
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k-1))
//if (!CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, 23))
//for( zz = 0; zz != k; zz++ )
//{
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: mBuffer[%x] = %x\n", (int)zz, (int)mBuffer[zz]);
//}
//if (CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k)<=0)
//{
//fprintf(stderr, "Error: failed to transfer data to CH341\n");
//return FALSE;
//}
//k = 0;
mBuffer[ k++ ] = CH341A_CMD_UIO_STREAM; // Command code
for( j = 0; j != 4; j++ )
{
c = tem & 0x80 ? 0x20 : 0; // D5 Data output
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | c; // D3=0, I/O_CLOCK=LOW
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_US | DELAY_US;
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | c | 0x08; // D3=1, I/O_CLOCK=HIGH
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_IN; // input from D7
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_US | DELAY_US;
tem <<= 1;
}
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | c | 0x00; // D3=0, I/O_CLOCK=LOW
//mBuffer[ k++ ] = CH341A_CMD_UIO_STM_US | DELAY_US;
//mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | 0x20;
//mBuffer[ k++ ] = CH341A_CMD_UIO_STM_US | DELAY_US;
//mBuffer[ k++ ] = CH341A_CMD_UIO_STM_OUT | 0x00;
mBuffer[ k++ ] = CH341A_CMD_UIO_STM_END; // The current command pack ends prematurely
//mBuffer[ k ] = CH341A_CMD_UIO_STM_END;
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: k = %x\n", (int)k);
k += CH341A_PACKET_LENGTH - 1;
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: k = %x\n", (int)k);
k &= ~ ( CH341A_PACKET_LENGTH - 1 );
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: k = %x\n", (int)k);
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: mBuffer[%x] = %x\n", (int)k-1, (int)mBuffer[k-1]);
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k-1))
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k))
//for( zz = 0; zz != k; zz++ )
//{
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: mBuffer[%x] = %x\n", (int)zz, (int)mBuffer[zz]);
//}
//if (!CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, 23))
//if (!CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k/2))
//if (CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k)<=0)
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k))
//{
//fprintf(stderr, "Error: failed to transfer data to CH341\n");
//return FALSE;
//}
//if (zzzz == 1)
//{
//zzzzBuffer[ 0 ] = 0xFE;
//zzzzBuffer[ 1 ] = 0xDE;
//zzzzBuffer[ 2 ] = 0xFE;
//zzzzBuffer[ 3 ] = 0xDE;
//if (CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, zzzzBuffer, 4)<=0)
//return FALSE;
//if (CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k)<=0)
//return FALSE;
//}
//zzzz++;
//MegaSpiEnable_wch( pgm );
//CH341ChipSelect_bitbang_wch(pgm, 0,false);
//usleep(20);
//CH341ChipSelect_bitbang_wch(pgm, 0,true);
p++;
}
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: k = %x\n", (int)k);
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: sizeof(mBuffer) = %x\n", (int)sizeof(mBuffer));
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: mBuffer[0] = %x\n", (int)mBuffer[0]);
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: mBuffer[%x] = %x\n", (int)k-1, (int)mBuffer[k-1]);
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: mBuffer[%x] = %x\n", (int)246, (int)mBuffer[246]);
//mBuffer[ k++ ] = CH341A_CMD_UIO_STM_END;
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: mBuffer[%x] = %x\n", (int)k-1, (int)mBuffer[k-1]);
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: sizeof(mBuffer) = %x\n", (int)sizeof(mBuffer));
//for( zz = 0; zz != k; zz++ )
//{
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: mBuffer[%x] = %x \n", (int)zz, (int)mBuffer[zz]);
//}
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k))
//if (CH341USBTransfer_bitbangPart2(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, (unsigned int)k)<=0)
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, 246))
//{
//fprintf(stderr, "Error: failed to transfer data to CH341\n");
//return FALSE;
//}
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: before CH341_write_read OutLen = %d \n", (int)OutLen);
//i = CH341_write_read( pgm, k, mBuffer, 4, OutLen*2, &j, mBuffer );
//i = CH341_write_read( pgm, k, mBuffer, 4, OutLen, &j, mBuffer );
//i = CH341_write_read( pgm, k, mBuffer, 8, OutLen, &j, mBuffer );
//i = CH341_write_read_new( pgm, k, mBuffer, 4, OutLen*2, &j, mBuffer );
i = CH341WriteRead( Ch341index, k, mBuffer, 4, OutLen*2, &j, mBuffer );
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: after CH341WritRead i = %d \n", (int)i);
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: after CH341_write_read OutLen = %d \n", (int)OutLen);
//for( zz = 0; zz != 128; zz++ )
//{
//avrdude_message(MSG_DEBUG, "mBuffer[%x] = %x ", (int)zz, (int)mBuffer[zz]);
//}
if( i == FALSE )
return( FALSE );
if( j != OutLen * 8 )
//if( j != OutLen * 4 )
return( FALSE );
k = 0;
for ( i = 0; i != OutLen; i++ )
{
c = 0;
for ( j = 0; j < 8; j ++ )
//for ( j = 0; j < 4; j ++ )
{
c <<= 1;
if ( mBuffer[ k++ ] & 0x80 ) // input 8 bit
c ++;
}
*(PUCHAR)DataBufOut = c;
//((PUCHAR)DataBuf)++;
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: DataBufOut[%x] = %x \n", (int)i, (int)c);
DataBufOut++;
}
//for( zz = 0; zz != j; zz++ )
//{
//avrdude_message(MSG_DEBUG, "MegaSpiOutInData_wch: mBuffer[%x] = %x \n", (int)zz, (int)mBuffer[zz]);
//}
return TRUE;
}
/*BOOL CH341WriteRead(PROGRAMMER * pgm, ULONG iWriteLength, PVOID iWriteBuffer,
ULONG iReadStep, ULONG iReadTimes,
PULONG oReadLength, PVOID oReadBuffer)
{
//int retval = 0;
//ULONG mLength;
ULONG mReadlen;
//ULONG iReadStep,iReadTimes;
//struct{
// ULONG oReadlen;
// PUCHAR iBuf;
// PUCHAR oBuffer;
// ULONG oReturnlen;
// }Read;
//iReadStep =*(PUCHAR)(iWriteBuffer+iWriteLength-8);
//iReadTimes = *(PUCHAR)(iWriteBuffer+iWriteLength-4);
mReadlen = iReadStep * iReadTimes;
if( mReadlen == 0 )
return FALSE;
//mLength = max( iWriteLength, mReadlen );
//#if 0
//printf("iWriteLength : %d\n",iWriteLength);
//printf("iReadTimes : %d\n",iReadTimes);
//printf("iReadStep : %d\n",iReadStep);
//#endif
//Read.iBuf = (PUCHAR)iWriteBuffer;
//Read.oBuffer = (PUCHAR)oReadBuffer;
//Read.oReturnlen = oReadLength;
// printf("iBuffer Addr is ------>:%p\n",Read.iBuf);
//Read.oReadlen = iWriteLength;
//retval = ioctl( dev_fd, CH34x_PIPE_WRITE_READ, (unsigned long)&Read );
if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, iWriteBuffer, (unsigned int)iWriteLength))
//if (!CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, iWriteBuffer, iWriteLength))
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, iWriteBuffer, sizeof(iWriteBuffer)))
//if (!CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, iWriteBuffer, sizeof(iWriteBuffer)))
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, iWriteBuffer, 100))
//if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, iWriteBuffer, 200))
{
fprintf(stderr, "Error: failed to transfer data to CH341\n");
//return -1;
return FALSE;
}
if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_IN, oReadBuffer, oReadLength))
{
fprintf(stderr, "Error: failed to transfer data from CH341\n");
//return -1;
return FALSE;
}
//if( retval == -1 )
//{
//printf("Error in pipe write/read\n");
//return FALSE;
//}
return TRUE;
}*/
BOOL MegaSpiEnable_wch( PROGRAMMER * pgm )
{
UCHAR mBuffer[ CH341A_PACKET_LENGTH ];
ULONG i;
i = 0;
mBuffer[ i++ ] = CH341A_CMD_UIO_STREAM; // ÃüÁîÂë
mBuffer[ i++ ] = CH341A_CMD_UIO_STM_OUT | 0x00; // default status: all 0
mBuffer[ i++ ] = CH341A_CMD_UIO_STM_DIR | 0x29; // D0 & D3 & D5 output, other input
mBuffer[ i++ ] = CH341A_CMD_UIO_STM_US | 32; // ÑÓ?32΢Ãë
mBuffer[ i++ ] = CH341A_CMD_UIO_STM_END; // ??ÃüÁî?üÌáÇ?½áÊø
//return( CH341WriteData( pgm, mBuffer, &i ) ); // Ö´ÐÐÊý¾Ý?ÃüÁî
if (!CH341USBTransfer_WCH(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, 5))
{
fprintf(stderr, "Error: MegaSpiEnable_wch returns FALSE\n");
//return -1;
return FALSE;
}
return TRUE;
}
/*BOOL SpiResetMega( PROGRAMMER * pgm )
{
UCHAR mBuffer[ CH341A_PACKET_LENGTH];
ULONG i;
i = 0;
mBuffer[ i++ ] = CH341A_CMD_UIO_STREAM; // ÃüÁîÂë
//mBuffer[ i++ ] = mCH341A_CMD_UIO_STM_OUT |0x02; // D1=1
mBuffer[ i++ ] = CH341A_CMD_UIO_STM_OUT |0x01; // D0=1
mBuffer[ i++ ] = CH341A_CMD_UIO_STM_END;
//if(CH341WriteData( index, mBuffer, &i ) == FALSE )
//return FALSE;
if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, 4))
{
fprintf(stderr, "Error: SpiResetMega_1\n");
//return -1;
return FALSE;
}
i = 0;
mBuffer[ i++ ] = CH341A_CMD_UIO_STREAM; // ÃüÁîÂë
mBuffer[ i++ ] = CH341A_CMD_UIO_STM_OUT |0x00; // D1=0
mBuffer[ i++ ] = CH341A_CMD_UIO_STM_END;
//return (CH341WriteData( index, mBuffer, &i ) );
if (!CH341USBTransfer_bitbang(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, 4))
{
fprintf(stderr, "Error: SpiResetMega_2\n");
//return -1;
return FALSE;
}
return TRUE;
}*/
/* BOOL CH341SetStream_bitbang( PROGRAMMER * pgm, ULONG Mode )
{
UCHAR mBuffer[CH341A_PACKET_LENGTH];
UCHAR StreamMode;
//ULONG mLength;
StreamMode = (UCHAR)( Mode & 0x8F );
mBuffer[0] = CH341A_CMD_I2C_STREAM;
mBuffer[1] = CH341A_CMD_I2C_STM_SET | (StreamMode & 0x0F);
mBuffer[2] = CH341A_CMD_I2C_STM_END;
//mLength = 3;
//if( CH34xWriteData( mBuffer, &mLength ))
//{
//if( mLength >= 2 )
//return true;
//}
//return false;
return CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, mBuffer, 3);
} */
/*static int CH341USBTransfer_bitbangPart2(PROGRAMMER * pgm, enum libusb_endpoint_direction dir, unsigned char *buff, unsigned int size) {
int ret, bytestransferred;
if (!PDATA(pgm)->usbhandle)
return 0;
if ((ret = libusb_interrupt_transfer(PDATA(pgm)->usbhandle, CH341A_USB_BULK_ENDPOINT | dir, buff, size, &bytestransferred, CH341A_USB_TIMEOUT))) {
avrdude_message(MSG_INFO, "%s: Error: libusb_interrupt_transfer for IN_EP failed: %d (%s)\n", progname, ret, libusb_error_name(ret));
return -1;
}
return bytestransferred;
}*/
/* bool CH341_write_read ( PROGRAMMER * pgm, unsigned long write_length, unsigned char * write_buffer, unsigned long read_step, unsigned long read_times, unsigned long *read_length, unsigned char *read_buffer )
{
unsigned char read[CH341A_PACKET_LENGTH];
//unsigned long j=0,k=0,s=0;
long j=0,k=0,s=0;
unsigned long m_length, m_rdlen;
int bytestransferred2;
int lwr_err;
m_rdlen = read_step * read_times;
avrdude_message(MSG_DEBUG, "CH341_write_read: read_step = %x \n", (int)read_step);
avrdude_message(MSG_DEBUG, "CH341_write_read: read_times = %x \n", (int)read_times);
avrdude_message(MSG_DEBUG, "CH341_write_read: m_rdlen = %x \n", (int)m_rdlen);
//ULONG iReadStep,iReadTimes;
//iReadStep = (write_buffer+write_length-8);
//iReadTimes = (write_buffer+write_length-4);
//avrdude_message(MSG_DEBUG, "CH341_write_read: iReadStep = %x \n", (int)iReadStep);
//avrdude_message(MSG_DEBUG, "CH341_write_read: iReadTimes = %x \n", (int)iReadTimes);
if ( m_rdlen == 0 ) return( FALSE );
m_length = max( write_length, m_rdlen );
j = CH341_write_data( pgm, write_buffer, write_length );
//j = CH341USBTransfer_bitbangPart(pgm, LIBUSB_ENDPOINT_OUT, write_buffer, write_length);
do
{
//s = usb_bulk_read( usb_dev[ pgm ], sUSBIO[ pgm ].in_ep, read, read_step, sUSBIO[ pgm ].read_timeout );
//s = usb_bulk_io( PDATA(pgm)->usbhandle, 0x82, read, read_step, 5000 );
if ((lwr_err = libusb_bulk_transfer(PDATA(pgm)->usbhandle, 0x82, read, read_step, &bytestransferred2, 5000)))
//if (lwr_err = libusb_interrupt_transfer(PDATA(pgm)->usbhandle, 0x82, read, read_step, &bytestransferred2, 5000))
{
avrdude_message(MSG_INFO, "CH341_write_read. Error: libusb_bulk_transfer for IN_EP failed: %d (%s)\n", lwr_err, libusb_error_name(lwr_err));
return FALSE;
}
s = bytestransferred2;
avrdude_message(MSG_INFO, "s = %d\n", (int)s);
if( s < 0 )
{
//printf("Error in pipe write/read\n");
avrdude_message(MSG_INFO, "Error in pipe write/read. s = %d\n", (int)s);
return false;
}
memcpy( read_buffer, read, s );
read_buffer += s;
k += s;
}
while
(--read_times);
*read_length = k;
//return k;
avrdude_message(MSG_INFO, "k = %d\n", (int)k);
if( k == -1 )
{
//printf("Error in pipe write/read\n");
avrdude_message(MSG_INFO, "Error in pipe write/read. k = %d\n", (int)k);
return false;
}
return true;
} */
/* int CH341_write_data( PROGRAMMER * pgm, unsigned char *buf, unsigned long size )
{