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a3da1d95 GE |
1 | /*************************************************************************** |
2 | ftdi.c - description | |
3 | ------------------- | |
4 | begin : Fri Apr 4 2003 | |
79646368 | 5 | copyright : (C) 2003-2017 by Intra2net AG and the libftdi developers |
5fdb1cb1 | 6 | email : opensource@intra2net.com |
a3da1d95 GE |
7 | ***************************************************************************/ |
8 | ||
9 | /*************************************************************************** | |
10 | * * | |
11 | * This program is free software; you can redistribute it and/or modify * | |
12 | * it under the terms of the GNU Lesser General Public License * | |
13 | * version 2.1 as published by the Free Software Foundation; * | |
14 | * * | |
15 | ***************************************************************************/ | |
d9f0cce7 | 16 | |
b5ec1820 TJ |
17 | /** |
18 | \mainpage libftdi API documentation | |
19 | ||
ad397a4b | 20 | Library to talk to FTDI chips. You find the latest versions of libftdi at |
79646368 | 21 | https://www.intra2net.com/en/developer/libftdi/ |
b5ec1820 | 22 | |
ad397a4b TJ |
23 | The library is easy to use. Have a look at this short example: |
24 | \include simple.c | |
25 | ||
26 | More examples can be found in the "examples" directory. | |
b5ec1820 TJ |
27 | */ |
28 | /** \addtogroup libftdi */ | |
29 | /* @{ */ | |
30 | ||
579b006f | 31 | #include <libusb.h> |
a8f46ddc | 32 | #include <string.h> |
d2f10023 | 33 | #include <errno.h> |
b56d5a64 | 34 | #include <stdio.h> |
579b006f | 35 | #include <stdlib.h> |
0e302db6 | 36 | |
b790d38e | 37 | #include "ftdi_i.h" |
98452d97 | 38 | #include "ftdi.h" |
0220adfa | 39 | #include "ftdi_version_i.h" |
a3da1d95 | 40 | |
21abaf2e | 41 | #define ftdi_error_return(code, str) do { \ |
b0a50459 PS |
42 | if ( ftdi ) \ |
43 | ftdi->error_str = str; \ | |
44 | else \ | |
45 | fprintf(stderr, str); \ | |
21abaf2e | 46 | return code; \ |
d2f10023 | 47 | } while(0); |
c3d95b87 | 48 | |
99650502 UB |
49 | #define ftdi_error_return_free_device_list(code, str, devs) do { \ |
50 | libusb_free_device_list(devs,1); \ | |
51 | ftdi->error_str = str; \ | |
52 | return code; \ | |
53 | } while(0); | |
54 | ||
418aaa72 | 55 | |
f3f81007 TJ |
56 | /** |
57 | Internal function to close usb device pointer. | |
58 | Sets ftdi->usb_dev to NULL. | |
59 | \internal | |
60 | ||
61 | \param ftdi pointer to ftdi_context | |
62 | ||
579b006f | 63 | \retval none |
f3f81007 | 64 | */ |
579b006f | 65 | static void ftdi_usb_close_internal (struct ftdi_context *ftdi) |
dff4fdb0 | 66 | { |
22a1b5c1 | 67 | if (ftdi && ftdi->usb_dev) |
dff4fdb0 | 68 | { |
56ac0383 TJ |
69 | libusb_close (ftdi->usb_dev); |
70 | ftdi->usb_dev = NULL; | |
44f41f11 UB |
71 | if(ftdi->eeprom) |
72 | ftdi->eeprom->initialized_for_connected_device = 0; | |
dff4fdb0 | 73 | } |
dff4fdb0 | 74 | } |
c3d95b87 | 75 | |
1941414d TJ |
76 | /** |
77 | Initializes a ftdi_context. | |
4837f98a | 78 | |
1941414d | 79 | \param ftdi pointer to ftdi_context |
4837f98a | 80 | |
1941414d TJ |
81 | \retval 0: all fine |
82 | \retval -1: couldn't allocate read buffer | |
a35aa9bd | 83 | \retval -2: couldn't allocate struct buffer |
3a284749 | 84 | \retval -3: libusb_init() failed |
1941414d TJ |
85 | |
86 | \remark This should be called before all functions | |
948f9ada | 87 | */ |
a8f46ddc TJ |
88 | int ftdi_init(struct ftdi_context *ftdi) |
89 | { | |
a35aa9bd | 90 | struct ftdi_eeprom* eeprom = (struct ftdi_eeprom *)malloc(sizeof(struct ftdi_eeprom)); |
02212d8e | 91 | ftdi->usb_ctx = NULL; |
98452d97 | 92 | ftdi->usb_dev = NULL; |
545820ce TJ |
93 | ftdi->usb_read_timeout = 5000; |
94 | ftdi->usb_write_timeout = 5000; | |
a3da1d95 | 95 | |
53ad271d | 96 | ftdi->type = TYPE_BM; /* chip type */ |
a3da1d95 | 97 | ftdi->baudrate = -1; |
418aaa72 | 98 | ftdi->bitbang_enabled = 0; /* 0: normal mode 1: any of the bitbang modes enabled */ |
a3da1d95 | 99 | |
948f9ada TJ |
100 | ftdi->readbuffer = NULL; |
101 | ftdi->readbuffer_offset = 0; | |
102 | ftdi->readbuffer_remaining = 0; | |
103 | ftdi->writebuffer_chunksize = 4096; | |
e2f12a4f | 104 | ftdi->max_packet_size = 0; |
3a284749 TJ |
105 | ftdi->error_str = NULL; |
106 | ftdi->module_detach_mode = AUTO_DETACH_SIO_MODULE; | |
107 | ||
108 | if (libusb_init(&ftdi->usb_ctx) < 0) | |
109 | ftdi_error_return(-3, "libusb_init() failed"); | |
948f9ada | 110 | |
ac0af8ec | 111 | ftdi_set_interface(ftdi, INTERFACE_ANY); |
418aaa72 | 112 | ftdi->bitbang_mode = 1; /* when bitbang is enabled this holds the number of the mode */ |
53ad271d | 113 | |
a35aa9bd UB |
114 | if (eeprom == 0) |
115 | ftdi_error_return(-2, "Can't malloc struct ftdi_eeprom"); | |
b4d19dea | 116 | memset(eeprom, 0, sizeof(struct ftdi_eeprom)); |
a35aa9bd | 117 | ftdi->eeprom = eeprom; |
c201f80f | 118 | |
1c733d33 TJ |
119 | /* All fine. Now allocate the readbuffer */ |
120 | return ftdi_read_data_set_chunksize(ftdi, 4096); | |
948f9ada | 121 | } |
4837f98a | 122 | |
1941414d | 123 | /** |
cef378aa TJ |
124 | Allocate and initialize a new ftdi_context |
125 | ||
126 | \return a pointer to a new ftdi_context, or NULL on failure | |
127 | */ | |
672ac008 | 128 | struct ftdi_context *ftdi_new(void) |
cef378aa TJ |
129 | { |
130 | struct ftdi_context * ftdi = (struct ftdi_context *)malloc(sizeof(struct ftdi_context)); | |
131 | ||
22d12cda TJ |
132 | if (ftdi == NULL) |
133 | { | |
cef378aa TJ |
134 | return NULL; |
135 | } | |
136 | ||
22d12cda TJ |
137 | if (ftdi_init(ftdi) != 0) |
138 | { | |
cef378aa | 139 | free(ftdi); |
cdf448f6 | 140 | return NULL; |
cef378aa TJ |
141 | } |
142 | ||
143 | return ftdi; | |
144 | } | |
145 | ||
146 | /** | |
1941414d TJ |
147 | Open selected channels on a chip, otherwise use first channel. |
148 | ||
149 | \param ftdi pointer to ftdi_context | |
f9d69895 | 150 | \param interface Interface to use for FT2232C/2232H/4232H chips. |
1941414d TJ |
151 | |
152 | \retval 0: all fine | |
153 | \retval -1: unknown interface | |
22a1b5c1 | 154 | \retval -2: USB device unavailable |
1c5fa36b | 155 | \retval -3: Device already open, interface can't be set in that state |
c4446c36 | 156 | */ |
0ce2f5fa | 157 | int ftdi_set_interface(struct ftdi_context *ftdi, enum ftdi_interface interface) |
c4446c36 | 158 | { |
1971c26d | 159 | if (ftdi == NULL) |
22a1b5c1 TJ |
160 | ftdi_error_return(-2, "USB device unavailable"); |
161 | ||
1c5fa36b TJ |
162 | if (ftdi->usb_dev != NULL) |
163 | { | |
164 | int check_interface = interface; | |
165 | if (check_interface == INTERFACE_ANY) | |
166 | check_interface = INTERFACE_A; | |
167 | ||
168 | if (ftdi->index != check_interface) | |
169 | ftdi_error_return(-3, "Interface can not be changed on an already open device"); | |
170 | } | |
171 | ||
22d12cda TJ |
172 | switch (interface) |
173 | { | |
174 | case INTERFACE_ANY: | |
175 | case INTERFACE_A: | |
ac0af8ec VY |
176 | ftdi->interface = 0; |
177 | ftdi->index = INTERFACE_A; | |
178 | ftdi->in_ep = 0x02; | |
179 | ftdi->out_ep = 0x81; | |
22d12cda TJ |
180 | break; |
181 | case INTERFACE_B: | |
182 | ftdi->interface = 1; | |
183 | ftdi->index = INTERFACE_B; | |
184 | ftdi->in_ep = 0x04; | |
185 | ftdi->out_ep = 0x83; | |
186 | break; | |
f9d69895 AH |
187 | case INTERFACE_C: |
188 | ftdi->interface = 2; | |
189 | ftdi->index = INTERFACE_C; | |
190 | ftdi->in_ep = 0x06; | |
191 | ftdi->out_ep = 0x85; | |
192 | break; | |
193 | case INTERFACE_D: | |
194 | ftdi->interface = 3; | |
195 | ftdi->index = INTERFACE_D; | |
196 | ftdi->in_ep = 0x08; | |
197 | ftdi->out_ep = 0x87; | |
198 | break; | |
22d12cda TJ |
199 | default: |
200 | ftdi_error_return(-1, "Unknown interface"); | |
c4446c36 TJ |
201 | } |
202 | return 0; | |
203 | } | |
948f9ada | 204 | |
1941414d TJ |
205 | /** |
206 | Deinitializes a ftdi_context. | |
4837f98a | 207 | |
1941414d | 208 | \param ftdi pointer to ftdi_context |
4837f98a | 209 | */ |
a8f46ddc TJ |
210 | void ftdi_deinit(struct ftdi_context *ftdi) |
211 | { | |
22a1b5c1 TJ |
212 | if (ftdi == NULL) |
213 | return; | |
214 | ||
f3f81007 | 215 | ftdi_usb_close_internal (ftdi); |
dff4fdb0 | 216 | |
22d12cda TJ |
217 | if (ftdi->readbuffer != NULL) |
218 | { | |
d9f0cce7 TJ |
219 | free(ftdi->readbuffer); |
220 | ftdi->readbuffer = NULL; | |
948f9ada | 221 | } |
a35aa9bd UB |
222 | |
223 | if (ftdi->eeprom != NULL) | |
224 | { | |
74e8e79d UB |
225 | if (ftdi->eeprom->manufacturer != 0) |
226 | { | |
227 | free(ftdi->eeprom->manufacturer); | |
228 | ftdi->eeprom->manufacturer = 0; | |
229 | } | |
230 | if (ftdi->eeprom->product != 0) | |
231 | { | |
232 | free(ftdi->eeprom->product); | |
233 | ftdi->eeprom->product = 0; | |
234 | } | |
235 | if (ftdi->eeprom->serial != 0) | |
236 | { | |
237 | free(ftdi->eeprom->serial); | |
238 | ftdi->eeprom->serial = 0; | |
239 | } | |
a35aa9bd UB |
240 | free(ftdi->eeprom); |
241 | ftdi->eeprom = NULL; | |
242 | } | |
3a284749 TJ |
243 | |
244 | if (ftdi->usb_ctx) | |
245 | { | |
246 | libusb_exit(ftdi->usb_ctx); | |
247 | ftdi->usb_ctx = NULL; | |
248 | } | |
a3da1d95 GE |
249 | } |
250 | ||
1941414d | 251 | /** |
cef378aa TJ |
252 | Deinitialize and free an ftdi_context. |
253 | ||
254 | \param ftdi pointer to ftdi_context | |
255 | */ | |
256 | void ftdi_free(struct ftdi_context *ftdi) | |
257 | { | |
258 | ftdi_deinit(ftdi); | |
259 | free(ftdi); | |
260 | } | |
261 | ||
262 | /** | |
1941414d TJ |
263 | Use an already open libusb device. |
264 | ||
265 | \param ftdi pointer to ftdi_context | |
579b006f | 266 | \param usb libusb libusb_device_handle to use |
4837f98a | 267 | */ |
579b006f | 268 | void ftdi_set_usbdev (struct ftdi_context *ftdi, libusb_device_handle *usb) |
a8f46ddc | 269 | { |
22a1b5c1 TJ |
270 | if (ftdi == NULL) |
271 | return; | |
272 | ||
98452d97 TJ |
273 | ftdi->usb_dev = usb; |
274 | } | |
275 | ||
0220adfa TJ |
276 | /** |
277 | * @brief Get libftdi library version | |
278 | * | |
279 | * @return ftdi_version_info Library version information | |
280 | **/ | |
bd6941fd | 281 | struct ftdi_version_info ftdi_get_library_version(void) |
0220adfa TJ |
282 | { |
283 | struct ftdi_version_info ver; | |
284 | ||
285 | ver.major = FTDI_MAJOR_VERSION; | |
286 | ver.minor = FTDI_MINOR_VERSION; | |
287 | ver.micro = FTDI_MICRO_VERSION; | |
288 | ver.version_str = FTDI_VERSION_STRING; | |
289 | ver.snapshot_str = FTDI_SNAPSHOT_VERSION; | |
290 | ||
291 | return ver; | |
292 | } | |
98452d97 | 293 | |
1941414d | 294 | /** |
7879216a UB |
295 | Finds all ftdi devices with given VID:PID on the usb bus. Creates a new |
296 | ftdi_device_list which needs to be deallocated by ftdi_list_free() after | |
297 | use. With VID:PID 0:0, search for the default devices | |
809d711d | 298 | (0x403:0x6001, 0x403:0x6010, 0x403:0x6011, 0x403:0x6014, 0x403:0x6015) |
1941414d TJ |
299 | |
300 | \param ftdi pointer to ftdi_context | |
301 | \param devlist Pointer where to store list of found devices | |
302 | \param vendor Vendor ID to search for | |
303 | \param product Product ID to search for | |
edb82cbf | 304 | |
1941414d | 305 | \retval >0: number of devices found |
1941414d | 306 | \retval -3: out of memory |
579b006f JZ |
307 | \retval -5: libusb_get_device_list() failed |
308 | \retval -6: libusb_get_device_descriptor() failed | |
edb82cbf | 309 | */ |
d2f10023 | 310 | int ftdi_usb_find_all(struct ftdi_context *ftdi, struct ftdi_device_list **devlist, int vendor, int product) |
edb82cbf TJ |
311 | { |
312 | struct ftdi_device_list **curdev; | |
579b006f JZ |
313 | libusb_device *dev; |
314 | libusb_device **devs; | |
edb82cbf | 315 | int count = 0; |
579b006f JZ |
316 | int i = 0; |
317 | ||
02212d8e | 318 | if (libusb_get_device_list(ftdi->usb_ctx, &devs) < 0) |
579b006f | 319 | ftdi_error_return(-5, "libusb_get_device_list() failed"); |
edb82cbf TJ |
320 | |
321 | curdev = devlist; | |
6db32169 | 322 | *curdev = NULL; |
579b006f JZ |
323 | |
324 | while ((dev = devs[i++]) != NULL) | |
22d12cda | 325 | { |
579b006f | 326 | struct libusb_device_descriptor desc; |
d2f10023 | 327 | |
579b006f | 328 | if (libusb_get_device_descriptor(dev, &desc) < 0) |
77377af7 | 329 | ftdi_error_return_free_device_list(-6, "libusb_get_device_descriptor() failed", devs); |
edb82cbf | 330 | |
8de26dde | 331 | if (((vendor || product) && |
74387f27 | 332 | desc.idVendor == vendor && desc.idProduct == product) || |
8de26dde | 333 | (!(vendor || product) && |
74387f27 | 334 | (desc.idVendor == 0x403) && (desc.idProduct == 0x6001 || desc.idProduct == 0x6010 |
809d711d TJ |
335 | || desc.idProduct == 0x6011 || desc.idProduct == 0x6014 |
336 | || desc.idProduct == 0x6015))) | |
579b006f JZ |
337 | { |
338 | *curdev = (struct ftdi_device_list*)malloc(sizeof(struct ftdi_device_list)); | |
339 | if (!*curdev) | |
77377af7 | 340 | ftdi_error_return_free_device_list(-3, "out of memory", devs); |
56ac0383 | 341 | |
579b006f JZ |
342 | (*curdev)->next = NULL; |
343 | (*curdev)->dev = dev; | |
0c33162c | 344 | libusb_ref_device(dev); |
579b006f JZ |
345 | curdev = &(*curdev)->next; |
346 | count++; | |
edb82cbf TJ |
347 | } |
348 | } | |
77377af7 | 349 | libusb_free_device_list(devs,1); |
edb82cbf TJ |
350 | return count; |
351 | } | |
352 | ||
1941414d TJ |
353 | /** |
354 | Frees a usb device list. | |
edb82cbf | 355 | |
1941414d | 356 | \param devlist USB device list created by ftdi_usb_find_all() |
edb82cbf | 357 | */ |
d2f10023 | 358 | void ftdi_list_free(struct ftdi_device_list **devlist) |
edb82cbf | 359 | { |
6db32169 TJ |
360 | struct ftdi_device_list *curdev, *next; |
361 | ||
22d12cda TJ |
362 | for (curdev = *devlist; curdev != NULL;) |
363 | { | |
6db32169 | 364 | next = curdev->next; |
0c33162c | 365 | libusb_unref_device(curdev->dev); |
6db32169 TJ |
366 | free(curdev); |
367 | curdev = next; | |
edb82cbf TJ |
368 | } |
369 | ||
6db32169 | 370 | *devlist = NULL; |
edb82cbf TJ |
371 | } |
372 | ||
1941414d | 373 | /** |
cef378aa TJ |
374 | Frees a usb device list. |
375 | ||
376 | \param devlist USB device list created by ftdi_usb_find_all() | |
377 | */ | |
378 | void ftdi_list_free2(struct ftdi_device_list *devlist) | |
379 | { | |
380 | ftdi_list_free(&devlist); | |
381 | } | |
382 | ||
383 | /** | |
474786c0 TJ |
384 | Return device ID strings from the usb device. |
385 | ||
386 | The parameters manufacturer, description and serial may be NULL | |
387 | or pointer to buffers to store the fetched strings. | |
388 | ||
898c34dd TJ |
389 | \note Use this function only in combination with ftdi_usb_find_all() |
390 | as it closes the internal "usb_dev" after use. | |
391 | ||
474786c0 TJ |
392 | \param ftdi pointer to ftdi_context |
393 | \param dev libusb usb_dev to use | |
394 | \param manufacturer Store manufacturer string here if not NULL | |
395 | \param mnf_len Buffer size of manufacturer string | |
396 | \param description Store product description string here if not NULL | |
397 | \param desc_len Buffer size of product description string | |
398 | \param serial Store serial string here if not NULL | |
399 | \param serial_len Buffer size of serial string | |
400 | ||
401 | \retval 0: all fine | |
402 | \retval -1: wrong arguments | |
403 | \retval -4: unable to open device | |
404 | \retval -7: get product manufacturer failed | |
405 | \retval -8: get product description failed | |
406 | \retval -9: get serial number failed | |
579b006f | 407 | \retval -11: libusb_get_device_descriptor() failed |
474786c0 | 408 | */ |
15079e78 FH |
409 | int ftdi_usb_get_strings(struct ftdi_context *ftdi, |
410 | struct libusb_device *dev, | |
411 | char *manufacturer, int mnf_len, | |
412 | char *description, int desc_len, | |
413 | char *serial, int serial_len) | |
474786c0 | 414 | { |
15079e78 | 415 | int ret; |
579b006f | 416 | |
474786c0 TJ |
417 | if ((ftdi==NULL) || (dev==NULL)) |
418 | return -1; | |
419 | ||
bc384123 | 420 | if (ftdi->usb_dev == NULL && libusb_open(dev, &ftdi->usb_dev) < 0) |
15079e78 FH |
421 | ftdi_error_return(-4, "libusb_open() failed"); |
422 | ||
423 | // ftdi->usb_dev will not be NULL when entering ftdi_usb_get_strings2(), so | |
424 | // it won't be closed either. This allows us to close it whether we actually | |
425 | // called libusb_open() up above or not. This matches the expected behavior | |
426 | // (and note) for ftdi_usb_get_strings(). | |
427 | ret = ftdi_usb_get_strings2(ftdi, dev, | |
428 | manufacturer, mnf_len, | |
429 | description, desc_len, | |
430 | serial, serial_len); | |
431 | ||
432 | // only close it if it was successful, as all other return codes close | |
433 | // before returning already. | |
434 | if (ret == 0) | |
435 | ftdi_usb_close_internal(ftdi); | |
436 | ||
437 | return ret; | |
438 | } | |
439 | ||
440 | /** | |
441 | Return device ID strings from the usb device. | |
442 | ||
443 | The parameters manufacturer, description and serial may be NULL | |
444 | or pointer to buffers to store the fetched strings. | |
445 | ||
446 | \note The old function ftdi_usb_get_strings() always closes the device. | |
447 | This version only closes the device if it was opened by it. | |
448 | ||
449 | \param ftdi pointer to ftdi_context | |
450 | \param dev libusb usb_dev to use | |
451 | \param manufacturer Store manufacturer string here if not NULL | |
452 | \param mnf_len Buffer size of manufacturer string | |
453 | \param description Store product description string here if not NULL | |
454 | \param desc_len Buffer size of product description string | |
455 | \param serial Store serial string here if not NULL | |
456 | \param serial_len Buffer size of serial string | |
457 | ||
458 | \retval 0: all fine | |
459 | \retval -1: wrong arguments | |
460 | \retval -4: unable to open device | |
461 | \retval -7: get product manufacturer failed | |
462 | \retval -8: get product description failed | |
463 | \retval -9: get serial number failed | |
464 | \retval -11: libusb_get_device_descriptor() failed | |
465 | */ | |
466 | int ftdi_usb_get_strings2(struct ftdi_context *ftdi, struct libusb_device *dev, | |
467 | char *manufacturer, int mnf_len, | |
468 | char *description, int desc_len, | |
469 | char *serial, int serial_len) | |
470 | { | |
471 | struct libusb_device_descriptor desc; | |
c45d2630 | 472 | char need_open; |
15079e78 FH |
473 | |
474 | if ((ftdi==NULL) || (dev==NULL)) | |
475 | return -1; | |
476 | ||
c45d2630 | 477 | need_open = (ftdi->usb_dev == NULL); |
15079e78 FH |
478 | if (need_open && libusb_open(dev, &ftdi->usb_dev) < 0) |
479 | ftdi_error_return(-4, "libusb_open() failed"); | |
579b006f JZ |
480 | |
481 | if (libusb_get_device_descriptor(dev, &desc) < 0) | |
482 | ftdi_error_return(-11, "libusb_get_device_descriptor() failed"); | |
474786c0 | 483 | |
22d12cda TJ |
484 | if (manufacturer != NULL) |
485 | { | |
579b006f | 486 | if (libusb_get_string_descriptor_ascii(ftdi->usb_dev, desc.iManufacturer, (unsigned char *)manufacturer, mnf_len) < 0) |
22d12cda | 487 | { |
f3f81007 | 488 | ftdi_usb_close_internal (ftdi); |
579b006f | 489 | ftdi_error_return(-7, "libusb_get_string_descriptor_ascii() failed"); |
474786c0 TJ |
490 | } |
491 | } | |
492 | ||
22d12cda TJ |
493 | if (description != NULL) |
494 | { | |
579b006f | 495 | if (libusb_get_string_descriptor_ascii(ftdi->usb_dev, desc.iProduct, (unsigned char *)description, desc_len) < 0) |
22d12cda | 496 | { |
f3f81007 | 497 | ftdi_usb_close_internal (ftdi); |
579b006f | 498 | ftdi_error_return(-8, "libusb_get_string_descriptor_ascii() failed"); |
474786c0 TJ |
499 | } |
500 | } | |
501 | ||
22d12cda TJ |
502 | if (serial != NULL) |
503 | { | |
579b006f | 504 | if (libusb_get_string_descriptor_ascii(ftdi->usb_dev, desc.iSerialNumber, (unsigned char *)serial, serial_len) < 0) |
22d12cda | 505 | { |
f3f81007 | 506 | ftdi_usb_close_internal (ftdi); |
579b006f | 507 | ftdi_error_return(-9, "libusb_get_string_descriptor_ascii() failed"); |
474786c0 TJ |
508 | } |
509 | } | |
510 | ||
15079e78 FH |
511 | if (need_open) |
512 | ftdi_usb_close_internal (ftdi); | |
474786c0 TJ |
513 | |
514 | return 0; | |
515 | } | |
516 | ||
517 | /** | |
e2f12a4f TJ |
518 | * Internal function to determine the maximum packet size. |
519 | * \param ftdi pointer to ftdi_context | |
520 | * \param dev libusb usb_dev to use | |
521 | * \retval Maximum packet size for this device | |
522 | */ | |
579b006f | 523 | static unsigned int _ftdi_determine_max_packet_size(struct ftdi_context *ftdi, libusb_device *dev) |
e2f12a4f | 524 | { |
579b006f JZ |
525 | struct libusb_device_descriptor desc; |
526 | struct libusb_config_descriptor *config0; | |
e2f12a4f TJ |
527 | unsigned int packet_size; |
528 | ||
22a1b5c1 TJ |
529 | // Sanity check |
530 | if (ftdi == NULL || dev == NULL) | |
531 | return 64; | |
532 | ||
e2f12a4f TJ |
533 | // Determine maximum packet size. Init with default value. |
534 | // New hi-speed devices from FTDI use a packet size of 512 bytes | |
535 | // but could be connected to a normal speed USB hub -> 64 bytes packet size. | |
6ae693b2 | 536 | if (ftdi->type == TYPE_2232H || ftdi->type == TYPE_4232H || ftdi->type == TYPE_232H) |
e2f12a4f TJ |
537 | packet_size = 512; |
538 | else | |
539 | packet_size = 64; | |
540 | ||
579b006f JZ |
541 | if (libusb_get_device_descriptor(dev, &desc) < 0) |
542 | return packet_size; | |
543 | ||
544 | if (libusb_get_config_descriptor(dev, 0, &config0) < 0) | |
545 | return packet_size; | |
e2f12a4f | 546 | |
579b006f JZ |
547 | if (desc.bNumConfigurations > 0) |
548 | { | |
549 | if (ftdi->interface < config0->bNumInterfaces) | |
e2f12a4f | 550 | { |
579b006f | 551 | struct libusb_interface interface = config0->interface[ftdi->interface]; |
e2f12a4f TJ |
552 | if (interface.num_altsetting > 0) |
553 | { | |
579b006f | 554 | struct libusb_interface_descriptor descriptor = interface.altsetting[0]; |
e2f12a4f TJ |
555 | if (descriptor.bNumEndpoints > 0) |
556 | { | |
557 | packet_size = descriptor.endpoint[0].wMaxPacketSize; | |
558 | } | |
559 | } | |
560 | } | |
561 | } | |
562 | ||
579b006f | 563 | libusb_free_config_descriptor (config0); |
e2f12a4f TJ |
564 | return packet_size; |
565 | } | |
566 | ||
567 | /** | |
418aaa72 | 568 | Opens a ftdi device given by an usb_device. |
7b18bef6 | 569 | |
1941414d TJ |
570 | \param ftdi pointer to ftdi_context |
571 | \param dev libusb usb_dev to use | |
572 | ||
573 | \retval 0: all fine | |
23b1798d | 574 | \retval -3: unable to config device |
1941414d TJ |
575 | \retval -4: unable to open device |
576 | \retval -5: unable to claim device | |
577 | \retval -6: reset failed | |
578 | \retval -7: set baudrate failed | |
22a1b5c1 | 579 | \retval -8: ftdi context invalid |
579b006f JZ |
580 | \retval -9: libusb_get_device_descriptor() failed |
581 | \retval -10: libusb_get_config_descriptor() failed | |
e375e6cb | 582 | \retval -11: libusb_detach_kernel_driver() failed |
579b006f | 583 | \retval -12: libusb_get_configuration() failed |
7b18bef6 | 584 | */ |
579b006f | 585 | int ftdi_usb_open_dev(struct ftdi_context *ftdi, libusb_device *dev) |
7b18bef6 | 586 | { |
579b006f JZ |
587 | struct libusb_device_descriptor desc; |
588 | struct libusb_config_descriptor *config0; | |
43aee24f | 589 | int cfg, cfg0, detach_errno = 0; |
579b006f | 590 | |
22a1b5c1 TJ |
591 | if (ftdi == NULL) |
592 | ftdi_error_return(-8, "ftdi context invalid"); | |
593 | ||
579b006f JZ |
594 | if (libusb_open(dev, &ftdi->usb_dev) < 0) |
595 | ftdi_error_return(-4, "libusb_open() failed"); | |
596 | ||
597 | if (libusb_get_device_descriptor(dev, &desc) < 0) | |
598 | ftdi_error_return(-9, "libusb_get_device_descriptor() failed"); | |
599 | ||
600 | if (libusb_get_config_descriptor(dev, 0, &config0) < 0) | |
601 | ftdi_error_return(-10, "libusb_get_config_descriptor() failed"); | |
602 | cfg0 = config0->bConfigurationValue; | |
603 | libusb_free_config_descriptor (config0); | |
d2f10023 | 604 | |
22592e17 | 605 | // Try to detach ftdi_sio kernel module. |
22592e17 TJ |
606 | // |
607 | // The return code is kept in a separate variable and only parsed | |
608 | // if usb_set_configuration() or usb_claim_interface() fails as the | |
609 | // detach operation might be denied and everything still works fine. | |
610 | // Likely scenario is a static ftdi_sio kernel module. | |
a3d86bdb TJ |
611 | if (ftdi->module_detach_mode == AUTO_DETACH_SIO_MODULE) |
612 | { | |
613 | if (libusb_detach_kernel_driver(ftdi->usb_dev, ftdi->interface) !=0) | |
614 | detach_errno = errno; | |
615 | } | |
d2f10023 | 616 | |
579b006f JZ |
617 | if (libusb_get_configuration (ftdi->usb_dev, &cfg) < 0) |
618 | ftdi_error_return(-12, "libusb_get_configuration () failed"); | |
b57aedfd GE |
619 | // set configuration (needed especially for windows) |
620 | // tolerate EBUSY: one device with one configuration, but two interfaces | |
621 | // and libftdi sessions to both interfaces (e.g. FT2232) | |
579b006f | 622 | if (desc.bNumConfigurations > 0 && cfg != cfg0) |
b57aedfd | 623 | { |
579b006f | 624 | if (libusb_set_configuration(ftdi->usb_dev, cfg0) < 0) |
22d12cda | 625 | { |
a56ba2bd | 626 | ftdi_usb_close_internal (ftdi); |
56ac0383 | 627 | if (detach_errno == EPERM) |
43aee24f UB |
628 | { |
629 | ftdi_error_return(-8, "inappropriate permissions on device!"); | |
630 | } | |
631 | else | |
632 | { | |
c16b162d | 633 | ftdi_error_return(-3, "unable to set usb configuration. Make sure the default FTDI driver is not in use"); |
43aee24f | 634 | } |
23b1798d TJ |
635 | } |
636 | } | |
637 | ||
579b006f | 638 | if (libusb_claim_interface(ftdi->usb_dev, ftdi->interface) < 0) |
22d12cda | 639 | { |
f3f81007 | 640 | ftdi_usb_close_internal (ftdi); |
56ac0383 | 641 | if (detach_errno == EPERM) |
43aee24f UB |
642 | { |
643 | ftdi_error_return(-8, "inappropriate permissions on device!"); | |
644 | } | |
645 | else | |
646 | { | |
c16b162d | 647 | ftdi_error_return(-5, "unable to claim usb device. Make sure the default FTDI driver is not in use"); |
43aee24f | 648 | } |
7b18bef6 TJ |
649 | } |
650 | ||
22d12cda TJ |
651 | if (ftdi_usb_reset (ftdi) != 0) |
652 | { | |
f3f81007 | 653 | ftdi_usb_close_internal (ftdi); |
7b18bef6 TJ |
654 | ftdi_error_return(-6, "ftdi_usb_reset failed"); |
655 | } | |
656 | ||
7b18bef6 TJ |
657 | // Try to guess chip type |
658 | // Bug in the BM type chips: bcdDevice is 0x200 for serial == 0 | |
579b006f | 659 | if (desc.bcdDevice == 0x400 || (desc.bcdDevice == 0x200 |
56ac0383 | 660 | && desc.iSerialNumber == 0)) |
7b18bef6 | 661 | ftdi->type = TYPE_BM; |
579b006f | 662 | else if (desc.bcdDevice == 0x200) |
7b18bef6 | 663 | ftdi->type = TYPE_AM; |
579b006f | 664 | else if (desc.bcdDevice == 0x500) |
7b18bef6 | 665 | ftdi->type = TYPE_2232C; |
579b006f | 666 | else if (desc.bcdDevice == 0x600) |
cb6250fa | 667 | ftdi->type = TYPE_R; |
579b006f | 668 | else if (desc.bcdDevice == 0x700) |
0beb9686 | 669 | ftdi->type = TYPE_2232H; |
579b006f | 670 | else if (desc.bcdDevice == 0x800) |
0beb9686 | 671 | ftdi->type = TYPE_4232H; |
c7e4c09e UB |
672 | else if (desc.bcdDevice == 0x900) |
673 | ftdi->type = TYPE_232H; | |
2f80efc2 NP |
674 | else if (desc.bcdDevice == 0x1000) |
675 | ftdi->type = TYPE_230X; | |
7b18bef6 | 676 | |
e2f12a4f TJ |
677 | // Determine maximum packet size |
678 | ftdi->max_packet_size = _ftdi_determine_max_packet_size(ftdi, dev); | |
679 | ||
ef6f4838 TE |
680 | if (ftdi_set_baudrate (ftdi, 9600) != 0) |
681 | { | |
682 | ftdi_usb_close_internal (ftdi); | |
683 | ftdi_error_return(-7, "set baudrate failed"); | |
684 | } | |
685 | ||
7b18bef6 TJ |
686 | ftdi_error_return(0, "all fine"); |
687 | } | |
688 | ||
1941414d TJ |
689 | /** |
690 | Opens the first device with a given vendor and product ids. | |
691 | ||
692 | \param ftdi pointer to ftdi_context | |
693 | \param vendor Vendor ID | |
694 | \param product Product ID | |
695 | ||
9bec2387 | 696 | \retval same as ftdi_usb_open_desc() |
1941414d | 697 | */ |
edb82cbf TJ |
698 | int ftdi_usb_open(struct ftdi_context *ftdi, int vendor, int product) |
699 | { | |
700 | return ftdi_usb_open_desc(ftdi, vendor, product, NULL, NULL); | |
701 | } | |
702 | ||
1941414d TJ |
703 | /** |
704 | Opens the first device with a given, vendor id, product id, | |
705 | description and serial. | |
706 | ||
707 | \param ftdi pointer to ftdi_context | |
708 | \param vendor Vendor ID | |
709 | \param product Product ID | |
710 | \param description Description to search for. Use NULL if not needed. | |
711 | \param serial Serial to search for. Use NULL if not needed. | |
712 | ||
713 | \retval 0: all fine | |
1941414d TJ |
714 | \retval -3: usb device not found |
715 | \retval -4: unable to open device | |
716 | \retval -5: unable to claim device | |
717 | \retval -6: reset failed | |
718 | \retval -7: set baudrate failed | |
719 | \retval -8: get product description failed | |
720 | \retval -9: get serial number failed | |
579b006f JZ |
721 | \retval -12: libusb_get_device_list() failed |
722 | \retval -13: libusb_get_device_descriptor() failed | |
a3da1d95 | 723 | */ |
04e1ea0a | 724 | int ftdi_usb_open_desc(struct ftdi_context *ftdi, int vendor, int product, |
a8f46ddc TJ |
725 | const char* description, const char* serial) |
726 | { | |
5ebbdab9 GE |
727 | return ftdi_usb_open_desc_index(ftdi,vendor,product,description,serial,0); |
728 | } | |
729 | ||
730 | /** | |
731 | Opens the index-th device with a given, vendor id, product id, | |
732 | description and serial. | |
733 | ||
734 | \param ftdi pointer to ftdi_context | |
735 | \param vendor Vendor ID | |
736 | \param product Product ID | |
737 | \param description Description to search for. Use NULL if not needed. | |
738 | \param serial Serial to search for. Use NULL if not needed. | |
739 | \param index Number of matching device to open if there are more than one, starts with 0. | |
740 | ||
741 | \retval 0: all fine | |
742 | \retval -1: usb_find_busses() failed | |
743 | \retval -2: usb_find_devices() failed | |
744 | \retval -3: usb device not found | |
745 | \retval -4: unable to open device | |
746 | \retval -5: unable to claim device | |
747 | \retval -6: reset failed | |
748 | \retval -7: set baudrate failed | |
749 | \retval -8: get product description failed | |
750 | \retval -9: get serial number failed | |
751 | \retval -10: unable to close device | |
22a1b5c1 | 752 | \retval -11: ftdi context invalid |
4fe1a3f0 | 753 | \retval -12: libusb_get_device_list() failed |
5ebbdab9 GE |
754 | */ |
755 | int ftdi_usb_open_desc_index(struct ftdi_context *ftdi, int vendor, int product, | |
56ac0383 | 756 | const char* description, const char* serial, unsigned int index) |
5ebbdab9 | 757 | { |
579b006f JZ |
758 | libusb_device *dev; |
759 | libusb_device **devs; | |
c3d95b87 | 760 | char string[256]; |
579b006f | 761 | int i = 0; |
98452d97 | 762 | |
22a1b5c1 TJ |
763 | if (ftdi == NULL) |
764 | ftdi_error_return(-11, "ftdi context invalid"); | |
765 | ||
02212d8e | 766 | if (libusb_get_device_list(ftdi->usb_ctx, &devs) < 0) |
99650502 UB |
767 | ftdi_error_return(-12, "libusb_get_device_list() failed"); |
768 | ||
579b006f | 769 | while ((dev = devs[i++]) != NULL) |
22d12cda | 770 | { |
579b006f | 771 | struct libusb_device_descriptor desc; |
99650502 | 772 | int res; |
579b006f JZ |
773 | |
774 | if (libusb_get_device_descriptor(dev, &desc) < 0) | |
99650502 | 775 | ftdi_error_return_free_device_list(-13, "libusb_get_device_descriptor() failed", devs); |
579b006f JZ |
776 | |
777 | if (desc.idVendor == vendor && desc.idProduct == product) | |
22d12cda | 778 | { |
579b006f | 779 | if (libusb_open(dev, &ftdi->usb_dev) < 0) |
99650502 | 780 | ftdi_error_return_free_device_list(-4, "usb_open() failed", devs); |
c3d95b87 | 781 | |
579b006f JZ |
782 | if (description != NULL) |
783 | { | |
784 | if (libusb_get_string_descriptor_ascii(ftdi->usb_dev, desc.iProduct, (unsigned char *)string, sizeof(string)) < 0) | |
22d12cda | 785 | { |
d4afae5f | 786 | ftdi_usb_close_internal (ftdi); |
99650502 | 787 | ftdi_error_return_free_device_list(-8, "unable to fetch product description", devs); |
a8f46ddc | 788 | } |
579b006f | 789 | if (strncmp(string, description, sizeof(string)) != 0) |
22d12cda | 790 | { |
d4afae5f | 791 | ftdi_usb_close_internal (ftdi); |
579b006f | 792 | continue; |
a8f46ddc | 793 | } |
579b006f JZ |
794 | } |
795 | if (serial != NULL) | |
796 | { | |
797 | if (libusb_get_string_descriptor_ascii(ftdi->usb_dev, desc.iSerialNumber, (unsigned char *)string, sizeof(string)) < 0) | |
798 | { | |
799 | ftdi_usb_close_internal (ftdi); | |
99650502 | 800 | ftdi_error_return_free_device_list(-9, "unable to fetch serial number", devs); |
579b006f JZ |
801 | } |
802 | if (strncmp(string, serial, sizeof(string)) != 0) | |
803 | { | |
804 | ftdi_usb_close_internal (ftdi); | |
805 | continue; | |
806 | } | |
807 | } | |
98452d97 | 808 | |
579b006f | 809 | ftdi_usb_close_internal (ftdi); |
d2f10023 | 810 | |
56ac0383 TJ |
811 | if (index > 0) |
812 | { | |
813 | index--; | |
814 | continue; | |
815 | } | |
5ebbdab9 | 816 | |
99650502 UB |
817 | res = ftdi_usb_open_dev(ftdi, dev); |
818 | libusb_free_device_list(devs,1); | |
814e69f5 MD |
819 | return res; |
820 | } | |
821 | } | |
822 | ||
823 | // device not found | |
824 | ftdi_error_return_free_device_list(-3, "device not found", devs); | |
825 | } | |
826 | ||
827 | /** | |
30ea3095 | 828 | Opens the device at a given USB bus and device address. |
814e69f5 MD |
829 | |
830 | \param ftdi pointer to ftdi_context | |
831 | \param bus Bus number | |
30ea3095 | 832 | \param addr Device address |
814e69f5 MD |
833 | |
834 | \retval 0: all fine | |
835 | \retval -1: usb_find_busses() failed | |
836 | \retval -2: usb_find_devices() failed | |
837 | \retval -3: usb device not found | |
838 | \retval -4: unable to open device | |
839 | \retval -5: unable to claim device | |
840 | \retval -6: reset failed | |
841 | \retval -7: set baudrate failed | |
842 | \retval -8: get product description failed | |
843 | \retval -9: get serial number failed | |
844 | \retval -10: unable to close device | |
845 | \retval -11: ftdi context invalid | |
4fe1a3f0 | 846 | \retval -12: libusb_get_device_list() failed |
814e69f5 | 847 | */ |
30ea3095 | 848 | int ftdi_usb_open_bus_addr(struct ftdi_context *ftdi, uint8_t bus, uint8_t addr) |
814e69f5 MD |
849 | { |
850 | libusb_device *dev; | |
851 | libusb_device **devs; | |
852 | int i = 0; | |
853 | ||
854 | if (ftdi == NULL) | |
855 | ftdi_error_return(-11, "ftdi context invalid"); | |
856 | ||
857 | if (libusb_get_device_list(ftdi->usb_ctx, &devs) < 0) | |
858 | ftdi_error_return(-12, "libusb_get_device_list() failed"); | |
859 | ||
860 | while ((dev = devs[i++]) != NULL) | |
861 | { | |
30ea3095 | 862 | if (libusb_get_bus_number(dev) == bus && libusb_get_device_address(dev) == addr) |
814e69f5 MD |
863 | { |
864 | int res; | |
865 | res = ftdi_usb_open_dev(ftdi, dev); | |
866 | libusb_free_device_list(devs,1); | |
99650502 | 867 | return res; |
98452d97 | 868 | } |
98452d97 | 869 | } |
a3da1d95 | 870 | |
98452d97 | 871 | // device not found |
99650502 | 872 | ftdi_error_return_free_device_list(-3, "device not found", devs); |
a3da1d95 GE |
873 | } |
874 | ||
1941414d | 875 | /** |
5ebbdab9 GE |
876 | Opens the ftdi-device described by a description-string. |
877 | Intended to be used for parsing a device-description given as commandline argument. | |
878 | ||
879 | \param ftdi pointer to ftdi_context | |
880 | \param description NULL-terminated description-string, using this format: | |
881 | \li <tt>d:\<devicenode></tt> path of bus and device-node (e.g. "003/001") within usb device tree (usually at /proc/bus/usb/) | |
882 | \li <tt>i:\<vendor>:\<product></tt> first device with given vendor and product id, ids can be decimal, octal (preceded by "0") or hex (preceded by "0x") | |
883 | \li <tt>i:\<vendor>:\<product>:\<index></tt> as above with index being the number of the device (starting with 0) if there are more than one | |
884 | \li <tt>s:\<vendor>:\<product>:\<serial></tt> first device with given vendor id, product id and serial string | |
885 | ||
886 | \note The description format may be extended in later versions. | |
887 | ||
888 | \retval 0: all fine | |
579b006f | 889 | \retval -2: libusb_get_device_list() failed |
5ebbdab9 GE |
890 | \retval -3: usb device not found |
891 | \retval -4: unable to open device | |
892 | \retval -5: unable to claim device | |
893 | \retval -6: reset failed | |
894 | \retval -7: set baudrate failed | |
895 | \retval -8: get product description failed | |
896 | \retval -9: get serial number failed | |
897 | \retval -10: unable to close device | |
898 | \retval -11: illegal description format | |
22a1b5c1 | 899 | \retval -12: ftdi context invalid |
5ebbdab9 GE |
900 | */ |
901 | int ftdi_usb_open_string(struct ftdi_context *ftdi, const char* description) | |
902 | { | |
22a1b5c1 TJ |
903 | if (ftdi == NULL) |
904 | ftdi_error_return(-12, "ftdi context invalid"); | |
905 | ||
5ebbdab9 GE |
906 | if (description[0] == 0 || description[1] != ':') |
907 | ftdi_error_return(-11, "illegal description format"); | |
908 | ||
909 | if (description[0] == 'd') | |
910 | { | |
579b006f JZ |
911 | libusb_device *dev; |
912 | libusb_device **devs; | |
56ac0383 TJ |
913 | unsigned int bus_number, device_address; |
914 | int i = 0; | |
579b006f | 915 | |
56ac0383 TJ |
916 | if (libusb_get_device_list(ftdi->usb_ctx, &devs) < 0) |
917 | ftdi_error_return(-2, "libusb_get_device_list() failed"); | |
5ebbdab9 | 918 | |
579b006f JZ |
919 | /* XXX: This doesn't handle symlinks/odd paths/etc... */ |
920 | if (sscanf (description + 2, "%u/%u", &bus_number, &device_address) != 2) | |
56ac0383 | 921 | ftdi_error_return_free_device_list(-11, "illegal description format", devs); |
5ebbdab9 | 922 | |
56ac0383 | 923 | while ((dev = devs[i++]) != NULL) |
5ebbdab9 | 924 | { |
99650502 | 925 | int ret; |
56ac0383 TJ |
926 | if (bus_number == libusb_get_bus_number (dev) |
927 | && device_address == libusb_get_device_address (dev)) | |
99650502 UB |
928 | { |
929 | ret = ftdi_usb_open_dev(ftdi, dev); | |
930 | libusb_free_device_list(devs,1); | |
931 | return ret; | |
932 | } | |
5ebbdab9 GE |
933 | } |
934 | ||
935 | // device not found | |
99650502 | 936 | ftdi_error_return_free_device_list(-3, "device not found", devs); |
5ebbdab9 GE |
937 | } |
938 | else if (description[0] == 'i' || description[0] == 's') | |
939 | { | |
940 | unsigned int vendor; | |
941 | unsigned int product; | |
942 | unsigned int index=0; | |
0e6cf62b | 943 | const char *serial=NULL; |
5ebbdab9 GE |
944 | const char *startp, *endp; |
945 | ||
946 | errno=0; | |
947 | startp=description+2; | |
948 | vendor=strtoul((char*)startp,(char**)&endp,0); | |
949 | if (*endp != ':' || endp == startp || errno != 0) | |
950 | ftdi_error_return(-11, "illegal description format"); | |
951 | ||
952 | startp=endp+1; | |
953 | product=strtoul((char*)startp,(char**)&endp,0); | |
954 | if (endp == startp || errno != 0) | |
955 | ftdi_error_return(-11, "illegal description format"); | |
956 | ||
957 | if (description[0] == 'i' && *endp != 0) | |
958 | { | |
959 | /* optional index field in i-mode */ | |
960 | if (*endp != ':') | |
961 | ftdi_error_return(-11, "illegal description format"); | |
962 | ||
963 | startp=endp+1; | |
964 | index=strtoul((char*)startp,(char**)&endp,0); | |
965 | if (*endp != 0 || endp == startp || errno != 0) | |
966 | ftdi_error_return(-11, "illegal description format"); | |
967 | } | |
968 | if (description[0] == 's') | |
969 | { | |
970 | if (*endp != ':') | |
971 | ftdi_error_return(-11, "illegal description format"); | |
972 | ||
973 | /* rest of the description is the serial */ | |
974 | serial=endp+1; | |
975 | } | |
976 | ||
977 | return ftdi_usb_open_desc_index(ftdi, vendor, product, NULL, serial, index); | |
978 | } | |
979 | else | |
980 | { | |
981 | ftdi_error_return(-11, "illegal description format"); | |
982 | } | |
983 | } | |
984 | ||
985 | /** | |
1941414d | 986 | Resets the ftdi device. |
a3da1d95 | 987 | |
1941414d TJ |
988 | \param ftdi pointer to ftdi_context |
989 | ||
990 | \retval 0: all fine | |
991 | \retval -1: FTDI reset failed | |
22a1b5c1 | 992 | \retval -2: USB device unavailable |
4837f98a | 993 | */ |
edb82cbf | 994 | int ftdi_usb_reset(struct ftdi_context *ftdi) |
a8f46ddc | 995 | { |
22a1b5c1 TJ |
996 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
997 | ftdi_error_return(-2, "USB device unavailable"); | |
998 | ||
579b006f JZ |
999 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
1000 | SIO_RESET_REQUEST, SIO_RESET_SIO, | |
1001 | ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0) | |
22d12cda | 1002 | ftdi_error_return(-1,"FTDI reset failed"); |
c3d95b87 | 1003 | |
545820ce | 1004 | // Invalidate data in the readbuffer |
bfcee05b TJ |
1005 | ftdi->readbuffer_offset = 0; |
1006 | ftdi->readbuffer_remaining = 0; | |
1007 | ||
a3da1d95 GE |
1008 | return 0; |
1009 | } | |
1010 | ||
1941414d | 1011 | /** |
1189b11a | 1012 | Clears the read buffer on the chip and the internal read buffer. |
1941414d TJ |
1013 | |
1014 | \param ftdi pointer to ftdi_context | |
4837f98a | 1015 | |
1941414d | 1016 | \retval 0: all fine |
1189b11a | 1017 | \retval -1: read buffer purge failed |
22a1b5c1 | 1018 | \retval -2: USB device unavailable |
4837f98a | 1019 | */ |
1189b11a | 1020 | int ftdi_usb_purge_rx_buffer(struct ftdi_context *ftdi) |
a8f46ddc | 1021 | { |
22a1b5c1 TJ |
1022 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
1023 | ftdi_error_return(-2, "USB device unavailable"); | |
1024 | ||
579b006f JZ |
1025 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
1026 | SIO_RESET_REQUEST, SIO_RESET_PURGE_RX, | |
1027 | ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0) | |
c3d95b87 TJ |
1028 | ftdi_error_return(-1, "FTDI purge of RX buffer failed"); |
1029 | ||
545820ce | 1030 | // Invalidate data in the readbuffer |
bfcee05b TJ |
1031 | ftdi->readbuffer_offset = 0; |
1032 | ftdi->readbuffer_remaining = 0; | |
a60be878 | 1033 | |
1189b11a TJ |
1034 | return 0; |
1035 | } | |
1036 | ||
1037 | /** | |
1038 | Clears the write buffer on the chip. | |
1039 | ||
1040 | \param ftdi pointer to ftdi_context | |
1041 | ||
1042 | \retval 0: all fine | |
1043 | \retval -1: write buffer purge failed | |
22a1b5c1 | 1044 | \retval -2: USB device unavailable |
1189b11a TJ |
1045 | */ |
1046 | int ftdi_usb_purge_tx_buffer(struct ftdi_context *ftdi) | |
1047 | { | |
22a1b5c1 TJ |
1048 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
1049 | ftdi_error_return(-2, "USB device unavailable"); | |
1050 | ||
579b006f JZ |
1051 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
1052 | SIO_RESET_REQUEST, SIO_RESET_PURGE_TX, | |
1053 | ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0) | |
1189b11a TJ |
1054 | ftdi_error_return(-1, "FTDI purge of TX buffer failed"); |
1055 | ||
1056 | return 0; | |
1057 | } | |
1058 | ||
1059 | /** | |
1060 | Clears the buffers on the chip and the internal read buffer. | |
1061 | ||
1062 | \param ftdi pointer to ftdi_context | |
1063 | ||
1064 | \retval 0: all fine | |
1065 | \retval -1: read buffer purge failed | |
1066 | \retval -2: write buffer purge failed | |
22a1b5c1 | 1067 | \retval -3: USB device unavailable |
1189b11a TJ |
1068 | */ |
1069 | int ftdi_usb_purge_buffers(struct ftdi_context *ftdi) | |
1070 | { | |
1071 | int result; | |
1072 | ||
22a1b5c1 TJ |
1073 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
1074 | ftdi_error_return(-3, "USB device unavailable"); | |
1075 | ||
1189b11a | 1076 | result = ftdi_usb_purge_rx_buffer(ftdi); |
5a2b51cb | 1077 | if (result < 0) |
1189b11a TJ |
1078 | return -1; |
1079 | ||
1080 | result = ftdi_usb_purge_tx_buffer(ftdi); | |
5a2b51cb | 1081 | if (result < 0) |
1189b11a | 1082 | return -2; |
545820ce | 1083 | |
a60be878 TJ |
1084 | return 0; |
1085 | } | |
a3da1d95 | 1086 | |
f3f81007 TJ |
1087 | |
1088 | ||
1941414d TJ |
1089 | /** |
1090 | Closes the ftdi device. Call ftdi_deinit() if you're cleaning up. | |
1091 | ||
1092 | \param ftdi pointer to ftdi_context | |
1093 | ||
1094 | \retval 0: all fine | |
1095 | \retval -1: usb_release failed | |
22a1b5c1 | 1096 | \retval -3: ftdi context invalid |
a3da1d95 | 1097 | */ |
a8f46ddc TJ |
1098 | int ftdi_usb_close(struct ftdi_context *ftdi) |
1099 | { | |
a3da1d95 GE |
1100 | int rtn = 0; |
1101 | ||
22a1b5c1 TJ |
1102 | if (ftdi == NULL) |
1103 | ftdi_error_return(-3, "ftdi context invalid"); | |
1104 | ||
dff4fdb0 | 1105 | if (ftdi->usb_dev != NULL) |
579b006f | 1106 | if (libusb_release_interface(ftdi->usb_dev, ftdi->interface) < 0) |
dff4fdb0 | 1107 | rtn = -1; |
98452d97 | 1108 | |
579b006f | 1109 | ftdi_usb_close_internal (ftdi); |
98452d97 | 1110 | |
a3da1d95 GE |
1111 | return rtn; |
1112 | } | |
1113 | ||
74387f27 | 1114 | /* ftdi_to_clkbits_AM For the AM device, convert a requested baudrate |
f15786e4 | 1115 | to encoded divisor and the achievable baudrate |
53ad271d | 1116 | Function is only used internally |
b5ec1820 | 1117 | \internal |
f15786e4 UB |
1118 | |
1119 | See AN120 | |
1120 | clk/1 -> 0 | |
1121 | clk/1.5 -> 1 | |
1122 | clk/2 -> 2 | |
1123 | From /2, 0.125/ 0.25 and 0.5 steps may be taken | |
1124 | The fractional part has frac_code encoding | |
53ad271d | 1125 | */ |
f15786e4 UB |
1126 | static int ftdi_to_clkbits_AM(int baudrate, unsigned long *encoded_divisor) |
1127 | ||
a8f46ddc | 1128 | { |
f15786e4 | 1129 | static const char frac_code[8] = {0, 3, 2, 4, 1, 5, 6, 7}; |
53ad271d TJ |
1130 | static const char am_adjust_up[8] = {0, 0, 0, 1, 0, 3, 2, 1}; |
1131 | static const char am_adjust_dn[8] = {0, 0, 0, 1, 0, 1, 2, 3}; | |
53ad271d | 1132 | int divisor, best_divisor, best_baud, best_baud_diff; |
f15786e4 | 1133 | int i; |
32e2d8b0 | 1134 | divisor = 24000000 / baudrate; |
53ad271d | 1135 | |
f15786e4 UB |
1136 | // Round down to supported fraction (AM only) |
1137 | divisor -= am_adjust_dn[divisor & 7]; | |
53ad271d TJ |
1138 | |
1139 | // Try this divisor and the one above it (because division rounds down) | |
1140 | best_divisor = 0; | |
1141 | best_baud = 0; | |
1142 | best_baud_diff = 0; | |
22d12cda TJ |
1143 | for (i = 0; i < 2; i++) |
1144 | { | |
53ad271d TJ |
1145 | int try_divisor = divisor + i; |
1146 | int baud_estimate; | |
1147 | int baud_diff; | |
1148 | ||
1149 | // Round up to supported divisor value | |
22d12cda TJ |
1150 | if (try_divisor <= 8) |
1151 | { | |
53ad271d TJ |
1152 | // Round up to minimum supported divisor |
1153 | try_divisor = 8; | |
22d12cda | 1154 | } |
22d12cda TJ |
1155 | else if (divisor < 16) |
1156 | { | |
53ad271d TJ |
1157 | // AM doesn't support divisors 9 through 15 inclusive |
1158 | try_divisor = 16; | |
22d12cda TJ |
1159 | } |
1160 | else | |
1161 | { | |
f15786e4 UB |
1162 | // Round up to supported fraction (AM only) |
1163 | try_divisor += am_adjust_up[try_divisor & 7]; | |
1164 | if (try_divisor > 0x1FFF8) | |
22d12cda | 1165 | { |
f15786e4 UB |
1166 | // Round down to maximum supported divisor value (for AM) |
1167 | try_divisor = 0x1FFF8; | |
53ad271d TJ |
1168 | } |
1169 | } | |
1170 | // Get estimated baud rate (to nearest integer) | |
1171 | baud_estimate = (24000000 + (try_divisor / 2)) / try_divisor; | |
1172 | // Get absolute difference from requested baud rate | |
22d12cda TJ |
1173 | if (baud_estimate < baudrate) |
1174 | { | |
53ad271d | 1175 | baud_diff = baudrate - baud_estimate; |
22d12cda TJ |
1176 | } |
1177 | else | |
1178 | { | |
53ad271d TJ |
1179 | baud_diff = baud_estimate - baudrate; |
1180 | } | |
22d12cda TJ |
1181 | if (i == 0 || baud_diff < best_baud_diff) |
1182 | { | |
53ad271d TJ |
1183 | // Closest to requested baud rate so far |
1184 | best_divisor = try_divisor; | |
1185 | best_baud = baud_estimate; | |
1186 | best_baud_diff = baud_diff; | |
22d12cda TJ |
1187 | if (baud_diff == 0) |
1188 | { | |
53ad271d TJ |
1189 | // Spot on! No point trying |
1190 | break; | |
1191 | } | |
1192 | } | |
1193 | } | |
1194 | // Encode the best divisor value | |
f15786e4 | 1195 | *encoded_divisor = (best_divisor >> 3) | (frac_code[best_divisor & 7] << 14); |
53ad271d | 1196 | // Deal with special cases for encoded value |
f15786e4 | 1197 | if (*encoded_divisor == 1) |
22d12cda | 1198 | { |
f15786e4 | 1199 | *encoded_divisor = 0; // 3000000 baud |
22d12cda | 1200 | } |
f15786e4 UB |
1201 | else if (*encoded_divisor == 0x4001) |
1202 | { | |
1203 | *encoded_divisor = 1; // 2000000 baud (BM only) | |
1204 | } | |
1205 | return best_baud; | |
1206 | } | |
1207 | ||
1208 | /* ftdi_to_clkbits Convert a requested baudrate for a given system clock and predivisor | |
1209 | to encoded divisor and the achievable baudrate | |
1210 | Function is only used internally | |
1211 | \internal | |
1212 | ||
1213 | See AN120 | |
1214 | clk/1 -> 0 | |
1215 | clk/1.5 -> 1 | |
1216 | clk/2 -> 2 | |
1217 | From /2, 0.125 steps may be taken. | |
1218 | The fractional part has frac_code encoding | |
9956d428 UB |
1219 | |
1220 | value[13:0] of value is the divisor | |
1221 | index[9] mean 12 MHz Base(120 MHz/10) rate versus 3 MHz (48 MHz/16) else | |
1222 | ||
1223 | H Type have all features above with | |
1224 | {index[8],value[15:14]} is the encoded subdivisor | |
1225 | ||
74387f27 | 1226 | FT232R, FT2232 and FT232BM have no option for 12 MHz and with |
9956d428 UB |
1227 | {index[0],value[15:14]} is the encoded subdivisor |
1228 | ||
1229 | AM Type chips have only four fractional subdivisors at value[15:14] | |
1230 | for subdivisors 0, 0.5, 0.25, 0.125 | |
f15786e4 UB |
1231 | */ |
1232 | static int ftdi_to_clkbits(int baudrate, unsigned int clk, int clk_div, unsigned long *encoded_divisor) | |
1233 | { | |
1234 | static const char frac_code[8] = {0, 3, 2, 4, 1, 5, 6, 7}; | |
1235 | int best_baud = 0; | |
1236 | int divisor, best_divisor; | |
1237 | if (baudrate >= clk/clk_div) | |
1238 | { | |
1239 | *encoded_divisor = 0; | |
1240 | best_baud = clk/clk_div; | |
1241 | } | |
1242 | else if (baudrate >= clk/(clk_div + clk_div/2)) | |
1243 | { | |
1244 | *encoded_divisor = 1; | |
1245 | best_baud = clk/(clk_div + clk_div/2); | |
1246 | } | |
1247 | else if (baudrate >= clk/(2*clk_div)) | |
1248 | { | |
1249 | *encoded_divisor = 2; | |
1250 | best_baud = clk/(2*clk_div); | |
1251 | } | |
1252 | else | |
1253 | { | |
1254 | /* We divide by 16 to have 3 fractional bits and one bit for rounding */ | |
1255 | divisor = clk*16/clk_div / baudrate; | |
1256 | if (divisor & 1) /* Decide if to round up or down*/ | |
1257 | best_divisor = divisor /2 +1; | |
1258 | else | |
1259 | best_divisor = divisor/2; | |
1260 | if(best_divisor > 0x20000) | |
1261 | best_divisor = 0x1ffff; | |
aae08071 UB |
1262 | best_baud = clk*16/clk_div/best_divisor; |
1263 | if (best_baud & 1) /* Decide if to round up or down*/ | |
1264 | best_baud = best_baud /2 +1; | |
1265 | else | |
1266 | best_baud = best_baud /2; | |
f15786e4 UB |
1267 | *encoded_divisor = (best_divisor >> 3) | (frac_code[best_divisor & 0x7] << 14); |
1268 | } | |
1269 | return best_baud; | |
74387f27 | 1270 | } |
f15786e4 UB |
1271 | /** |
1272 | ftdi_convert_baudrate returns nearest supported baud rate to that requested. | |
1273 | Function is only used internally | |
1274 | \internal | |
1275 | */ | |
1276 | static int ftdi_convert_baudrate(int baudrate, struct ftdi_context *ftdi, | |
1277 | unsigned short *value, unsigned short *index) | |
1278 | { | |
1279 | int best_baud; | |
1280 | unsigned long encoded_divisor; | |
1281 | ||
1282 | if (baudrate <= 0) | |
1283 | { | |
1284 | // Return error | |
1285 | return -1; | |
1286 | } | |
1287 | ||
1288 | #define H_CLK 120000000 | |
1289 | #define C_CLK 48000000 | |
6ae693b2 | 1290 | if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H) || (ftdi->type == TYPE_232H)) |
f15786e4 UB |
1291 | { |
1292 | if(baudrate*10 > H_CLK /0x3fff) | |
1293 | { | |
1294 | /* On H Devices, use 12 000 000 Baudrate when possible | |
74387f27 | 1295 | We have a 14 bit divisor, a 1 bit divisor switch (10 or 16) |
f15786e4 UB |
1296 | three fractional bits and a 120 MHz clock |
1297 | Assume AN_120 "Sub-integer divisors between 0 and 2 are not allowed" holds for | |
1298 | DIV/10 CLK too, so /1, /1.5 and /2 can be handled the same*/ | |
1299 | best_baud = ftdi_to_clkbits(baudrate, H_CLK, 10, &encoded_divisor); | |
1300 | encoded_divisor |= 0x20000; /* switch on CLK/10*/ | |
1301 | } | |
1302 | else | |
1303 | best_baud = ftdi_to_clkbits(baudrate, C_CLK, 16, &encoded_divisor); | |
1304 | } | |
913ca54f | 1305 | else if ((ftdi->type == TYPE_BM) || (ftdi->type == TYPE_2232C) || (ftdi->type == TYPE_R) || (ftdi->type == TYPE_230X)) |
f15786e4 UB |
1306 | { |
1307 | best_baud = ftdi_to_clkbits(baudrate, C_CLK, 16, &encoded_divisor); | |
1308 | } | |
1309 | else | |
22d12cda | 1310 | { |
f15786e4 | 1311 | best_baud = ftdi_to_clkbits_AM(baudrate, &encoded_divisor); |
53ad271d TJ |
1312 | } |
1313 | // Split into "value" and "index" values | |
1314 | *value = (unsigned short)(encoded_divisor & 0xFFFF); | |
6ae693b2 | 1315 | if (ftdi->type == TYPE_2232H || ftdi->type == TYPE_4232H || ftdi->type == TYPE_232H) |
22d12cda | 1316 | { |
0126d22e TJ |
1317 | *index = (unsigned short)(encoded_divisor >> 8); |
1318 | *index &= 0xFF00; | |
a9c57c05 | 1319 | *index |= ftdi->index; |
0126d22e TJ |
1320 | } |
1321 | else | |
1322 | *index = (unsigned short)(encoded_divisor >> 16); | |
c3d95b87 | 1323 | |
53ad271d TJ |
1324 | // Return the nearest baud rate |
1325 | return best_baud; | |
1326 | } | |
1327 | ||
1941414d | 1328 | /** |
ac6944cc TJ |
1329 | * @brief Wrapper function to export ftdi_convert_baudrate() to the unit test |
1330 | * Do not use, it's only for the unit test framework | |
1331 | **/ | |
1332 | int convert_baudrate_UT_export(int baudrate, struct ftdi_context *ftdi, | |
74387f27 | 1333 | unsigned short *value, unsigned short *index) |
ac6944cc TJ |
1334 | { |
1335 | return ftdi_convert_baudrate(baudrate, ftdi, value, index); | |
1336 | } | |
1337 | ||
1338 | /** | |
9bec2387 | 1339 | Sets the chip baud rate |
1941414d TJ |
1340 | |
1341 | \param ftdi pointer to ftdi_context | |
9bec2387 | 1342 | \param baudrate baud rate to set |
1941414d TJ |
1343 | |
1344 | \retval 0: all fine | |
1345 | \retval -1: invalid baudrate | |
1346 | \retval -2: setting baudrate failed | |
22a1b5c1 | 1347 | \retval -3: USB device unavailable |
a3da1d95 | 1348 | */ |
a8f46ddc TJ |
1349 | int ftdi_set_baudrate(struct ftdi_context *ftdi, int baudrate) |
1350 | { | |
53ad271d TJ |
1351 | unsigned short value, index; |
1352 | int actual_baudrate; | |
a3da1d95 | 1353 | |
22a1b5c1 TJ |
1354 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
1355 | ftdi_error_return(-3, "USB device unavailable"); | |
1356 | ||
22d12cda TJ |
1357 | if (ftdi->bitbang_enabled) |
1358 | { | |
a3da1d95 GE |
1359 | baudrate = baudrate*4; |
1360 | } | |
1361 | ||
25707904 | 1362 | actual_baudrate = ftdi_convert_baudrate(baudrate, ftdi, &value, &index); |
c3d95b87 TJ |
1363 | if (actual_baudrate <= 0) |
1364 | ftdi_error_return (-1, "Silly baudrate <= 0."); | |
a3da1d95 | 1365 | |
53ad271d TJ |
1366 | // Check within tolerance (about 5%) |
1367 | if ((actual_baudrate * 2 < baudrate /* Catch overflows */ ) | |
1368 | || ((actual_baudrate < baudrate) | |
1369 | ? (actual_baudrate * 21 < baudrate * 20) | |
c3d95b87 TJ |
1370 | : (baudrate * 21 < actual_baudrate * 20))) |
1371 | ftdi_error_return (-1, "Unsupported baudrate. Note: bitbang baudrates are automatically multiplied by 4"); | |
545820ce | 1372 | |
579b006f JZ |
1373 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
1374 | SIO_SET_BAUDRATE_REQUEST, value, | |
1375 | index, NULL, 0, ftdi->usb_write_timeout) < 0) | |
c3d95b87 | 1376 | ftdi_error_return (-2, "Setting new baudrate failed"); |
a3da1d95 GE |
1377 | |
1378 | ftdi->baudrate = baudrate; | |
1379 | return 0; | |
1380 | } | |
1381 | ||
1941414d | 1382 | /** |
6c32e222 TJ |
1383 | Set (RS232) line characteristics. |
1384 | The break type can only be set via ftdi_set_line_property2() | |
1385 | and defaults to "off". | |
4837f98a | 1386 | |
1941414d TJ |
1387 | \param ftdi pointer to ftdi_context |
1388 | \param bits Number of bits | |
1389 | \param sbit Number of stop bits | |
1390 | \param parity Parity mode | |
1391 | ||
1392 | \retval 0: all fine | |
1393 | \retval -1: Setting line property failed | |
2f73e59f TJ |
1394 | */ |
1395 | int ftdi_set_line_property(struct ftdi_context *ftdi, enum ftdi_bits_type bits, | |
d2f10023 | 1396 | enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity) |
2f73e59f | 1397 | { |
6c32e222 TJ |
1398 | return ftdi_set_line_property2(ftdi, bits, sbit, parity, BREAK_OFF); |
1399 | } | |
1400 | ||
1401 | /** | |
1402 | Set (RS232) line characteristics | |
1403 | ||
1404 | \param ftdi pointer to ftdi_context | |
1405 | \param bits Number of bits | |
1406 | \param sbit Number of stop bits | |
1407 | \param parity Parity mode | |
1408 | \param break_type Break type | |
1409 | ||
1410 | \retval 0: all fine | |
1411 | \retval -1: Setting line property failed | |
22a1b5c1 | 1412 | \retval -2: USB device unavailable |
6c32e222 TJ |
1413 | */ |
1414 | int ftdi_set_line_property2(struct ftdi_context *ftdi, enum ftdi_bits_type bits, | |
22d12cda TJ |
1415 | enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity, |
1416 | enum ftdi_break_type break_type) | |
6c32e222 | 1417 | { |
2f73e59f TJ |
1418 | unsigned short value = bits; |
1419 | ||
22a1b5c1 TJ |
1420 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
1421 | ftdi_error_return(-2, "USB device unavailable"); | |
1422 | ||
22d12cda TJ |
1423 | switch (parity) |
1424 | { | |
1425 | case NONE: | |
1426 | value |= (0x00 << 8); | |
1427 | break; | |
1428 | case ODD: | |
1429 | value |= (0x01 << 8); | |
1430 | break; | |
1431 | case EVEN: | |
1432 | value |= (0x02 << 8); | |
1433 | break; | |
1434 | case MARK: | |
1435 | value |= (0x03 << 8); | |
1436 | break; | |
1437 | case SPACE: | |
1438 | value |= (0x04 << 8); | |
1439 | break; | |
2f73e59f | 1440 | } |
d2f10023 | 1441 | |
22d12cda TJ |
1442 | switch (sbit) |
1443 | { | |
1444 | case STOP_BIT_1: | |
1445 | value |= (0x00 << 11); | |
1446 | break; | |
1447 | case STOP_BIT_15: | |
1448 | value |= (0x01 << 11); | |
1449 | break; | |
1450 | case STOP_BIT_2: | |
1451 | value |= (0x02 << 11); | |
1452 | break; | |
2f73e59f | 1453 | } |
d2f10023 | 1454 | |
22d12cda TJ |
1455 | switch (break_type) |
1456 | { | |
1457 | case BREAK_OFF: | |
1458 | value |= (0x00 << 14); | |
1459 | break; | |
1460 | case BREAK_ON: | |
1461 | value |= (0x01 << 14); | |
1462 | break; | |
6c32e222 TJ |
1463 | } |
1464 | ||
579b006f JZ |
1465 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
1466 | SIO_SET_DATA_REQUEST, value, | |
1467 | ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0) | |
2f73e59f | 1468 | ftdi_error_return (-1, "Setting new line property failed"); |
d2f10023 | 1469 | |
2f73e59f TJ |
1470 | return 0; |
1471 | } | |
a3da1d95 | 1472 | |
1941414d TJ |
1473 | /** |
1474 | Writes data in chunks (see ftdi_write_data_set_chunksize()) to the chip | |
1475 | ||
1476 | \param ftdi pointer to ftdi_context | |
1477 | \param buf Buffer with the data | |
1478 | \param size Size of the buffer | |
1479 | ||
22a1b5c1 | 1480 | \retval -666: USB device unavailable |
1941414d TJ |
1481 | \retval <0: error code from usb_bulk_write() |
1482 | \retval >0: number of bytes written | |
1483 | */ | |
276750c1 | 1484 | int ftdi_write_data(struct ftdi_context *ftdi, const unsigned char *buf, int size) |
a8f46ddc | 1485 | { |
a3da1d95 | 1486 | int offset = 0; |
579b006f | 1487 | int actual_length; |
c3d95b87 | 1488 | |
22a1b5c1 TJ |
1489 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
1490 | ftdi_error_return(-666, "USB device unavailable"); | |
1491 | ||
22d12cda TJ |
1492 | while (offset < size) |
1493 | { | |
948f9ada | 1494 | int write_size = ftdi->writebuffer_chunksize; |
a3da1d95 GE |
1495 | |
1496 | if (offset+write_size > size) | |
1497 | write_size = size-offset; | |
1498 | ||
276750c1 | 1499 | if (libusb_bulk_transfer(ftdi->usb_dev, ftdi->in_ep, (unsigned char *)buf+offset, write_size, &actual_length, ftdi->usb_write_timeout) < 0) |
579b006f | 1500 | ftdi_error_return(-1, "usb bulk write failed"); |
a3da1d95 | 1501 | |
579b006f | 1502 | offset += actual_length; |
a3da1d95 GE |
1503 | } |
1504 | ||
579b006f | 1505 | return offset; |
a3da1d95 GE |
1506 | } |
1507 | ||
32e2d8b0 | 1508 | static void LIBUSB_CALL ftdi_read_data_cb(struct libusb_transfer *transfer) |
22d12cda | 1509 | { |
579b006f JZ |
1510 | struct ftdi_transfer_control *tc = (struct ftdi_transfer_control *) transfer->user_data; |
1511 | struct ftdi_context *ftdi = tc->ftdi; | |
1512 | int packet_size, actual_length, num_of_chunks, chunk_remains, i, ret; | |
4c9e3812 | 1513 | |
b1139150 | 1514 | packet_size = ftdi->max_packet_size; |
579b006f JZ |
1515 | |
1516 | actual_length = transfer->actual_length; | |
1517 | ||
1518 | if (actual_length > 2) | |
1519 | { | |
1520 | // skip FTDI status bytes. | |
1521 | // Maybe stored in the future to enable modem use | |
1522 | num_of_chunks = actual_length / packet_size; | |
1523 | chunk_remains = actual_length % packet_size; | |
1524 | //printf("actual_length = %X, num_of_chunks = %X, chunk_remains = %X, readbuffer_offset = %X\n", actual_length, num_of_chunks, chunk_remains, ftdi->readbuffer_offset); | |
1525 | ||
1526 | ftdi->readbuffer_offset += 2; | |
1527 | actual_length -= 2; | |
1528 | ||
1529 | if (actual_length > packet_size - 2) | |
1530 | { | |
1531 | for (i = 1; i < num_of_chunks; i++) | |
56ac0383 TJ |
1532 | memmove (ftdi->readbuffer+ftdi->readbuffer_offset+(packet_size - 2)*i, |
1533 | ftdi->readbuffer+ftdi->readbuffer_offset+packet_size*i, | |
1534 | packet_size - 2); | |
579b006f JZ |
1535 | if (chunk_remains > 2) |
1536 | { | |
1537 | memmove (ftdi->readbuffer+ftdi->readbuffer_offset+(packet_size - 2)*i, | |
1538 | ftdi->readbuffer+ftdi->readbuffer_offset+packet_size*i, | |
1539 | chunk_remains-2); | |
1540 | actual_length -= 2*num_of_chunks; | |
1541 | } | |
1542 | else | |
56ac0383 | 1543 | actual_length -= 2*(num_of_chunks-1)+chunk_remains; |
579b006f JZ |
1544 | } |
1545 | ||
1546 | if (actual_length > 0) | |
1547 | { | |
1548 | // data still fits in buf? | |
1549 | if (tc->offset + actual_length <= tc->size) | |
1550 | { | |
1551 | memcpy (tc->buf + tc->offset, ftdi->readbuffer + ftdi->readbuffer_offset, actual_length); | |
1552 | //printf("buf[0] = %X, buf[1] = %X\n", buf[0], buf[1]); | |
1553 | tc->offset += actual_length; | |
1554 | ||
1555 | ftdi->readbuffer_offset = 0; | |
1556 | ftdi->readbuffer_remaining = 0; | |
1557 | ||
1558 | /* Did we read exactly the right amount of bytes? */ | |
1559 | if (tc->offset == tc->size) | |
1560 | { | |
1561 | //printf("read_data exact rem %d offset %d\n", | |
1562 | //ftdi->readbuffer_remaining, offset); | |
1563 | tc->completed = 1; | |
1564 | return; | |
1565 | } | |
1566 | } | |
1567 | else | |
1568 | { | |
1569 | // only copy part of the data or size <= readbuffer_chunksize | |
1570 | int part_size = tc->size - tc->offset; | |
1571 | memcpy (tc->buf + tc->offset, ftdi->readbuffer + ftdi->readbuffer_offset, part_size); | |
1572 | tc->offset += part_size; | |
1573 | ||
1574 | ftdi->readbuffer_offset += part_size; | |
1575 | ftdi->readbuffer_remaining = actual_length - part_size; | |
1576 | ||
1577 | /* printf("Returning part: %d - size: %d - offset: %d - actual_length: %d - remaining: %d\n", | |
1578 | part_size, size, offset, actual_length, ftdi->readbuffer_remaining); */ | |
1579 | tc->completed = 1; | |
1580 | return; | |
1581 | } | |
1582 | } | |
1583 | } | |
1b1bf7e4 EH |
1584 | |
1585 | if (transfer->status == LIBUSB_TRANSFER_CANCELLED) | |
1586 | tc->completed = LIBUSB_TRANSFER_CANCELLED; | |
1587 | else | |
1588 | { | |
1589 | ret = libusb_submit_transfer (transfer); | |
1590 | if (ret < 0) | |
1591 | tc->completed = 1; | |
1592 | } | |
579b006f JZ |
1593 | } |
1594 | ||
1595 | ||
32e2d8b0 | 1596 | static void LIBUSB_CALL ftdi_write_data_cb(struct libusb_transfer *transfer) |
7cc9950e | 1597 | { |
579b006f JZ |
1598 | struct ftdi_transfer_control *tc = (struct ftdi_transfer_control *) transfer->user_data; |
1599 | struct ftdi_context *ftdi = tc->ftdi; | |
56ac0383 | 1600 | |
90ef163e | 1601 | tc->offset += transfer->actual_length; |
56ac0383 | 1602 | |
579b006f | 1603 | if (tc->offset == tc->size) |
22d12cda | 1604 | { |
579b006f | 1605 | tc->completed = 1; |
7cc9950e | 1606 | } |
579b006f JZ |
1607 | else |
1608 | { | |
1609 | int write_size = ftdi->writebuffer_chunksize; | |
1610 | int ret; | |
7cc9950e | 1611 | |
579b006f JZ |
1612 | if (tc->offset + write_size > tc->size) |
1613 | write_size = tc->size - tc->offset; | |
1614 | ||
1615 | transfer->length = write_size; | |
1616 | transfer->buffer = tc->buf + tc->offset; | |
1b1bf7e4 EH |
1617 | |
1618 | if (transfer->status == LIBUSB_TRANSFER_CANCELLED) | |
1619 | tc->completed = LIBUSB_TRANSFER_CANCELLED; | |
1620 | else | |
1621 | { | |
1622 | ret = libusb_submit_transfer (transfer); | |
1623 | if (ret < 0) | |
1624 | tc->completed = 1; | |
1625 | } | |
579b006f | 1626 | } |
7cc9950e GE |
1627 | } |
1628 | ||
579b006f | 1629 | |
84f85aaa | 1630 | /** |
579b006f JZ |
1631 | Writes data to the chip. Does not wait for completion of the transfer |
1632 | nor does it make sure that the transfer was successful. | |
1633 | ||
249888c8 | 1634 | Use libusb 1.0 asynchronous API. |
84f85aaa GE |
1635 | |
1636 | \param ftdi pointer to ftdi_context | |
579b006f JZ |
1637 | \param buf Buffer with the data |
1638 | \param size Size of the buffer | |
84f85aaa | 1639 | |
579b006f JZ |
1640 | \retval NULL: Some error happens when submit transfer |
1641 | \retval !NULL: Pointer to a ftdi_transfer_control | |
c201f80f | 1642 | */ |
579b006f JZ |
1643 | |
1644 | struct ftdi_transfer_control *ftdi_write_data_submit(struct ftdi_context *ftdi, unsigned char *buf, int size) | |
7cc9950e | 1645 | { |
579b006f | 1646 | struct ftdi_transfer_control *tc; |
5e77e870 | 1647 | struct libusb_transfer *transfer; |
579b006f | 1648 | int write_size, ret; |
22d12cda | 1649 | |
22a1b5c1 | 1650 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
22a1b5c1 | 1651 | return NULL; |
22a1b5c1 | 1652 | |
579b006f | 1653 | tc = (struct ftdi_transfer_control *) malloc (sizeof (*tc)); |
5e77e870 TJ |
1654 | if (!tc) |
1655 | return NULL; | |
22d12cda | 1656 | |
5e77e870 TJ |
1657 | transfer = libusb_alloc_transfer(0); |
1658 | if (!transfer) | |
1659 | { | |
1660 | free(tc); | |
579b006f | 1661 | return NULL; |
5e77e870 | 1662 | } |
22d12cda | 1663 | |
579b006f JZ |
1664 | tc->ftdi = ftdi; |
1665 | tc->completed = 0; | |
1666 | tc->buf = buf; | |
1667 | tc->size = size; | |
1668 | tc->offset = 0; | |
7cc9950e | 1669 | |
9e44fc94 | 1670 | if (size < (int)ftdi->writebuffer_chunksize) |
56ac0383 | 1671 | write_size = size; |
579b006f | 1672 | else |
56ac0383 | 1673 | write_size = ftdi->writebuffer_chunksize; |
22d12cda | 1674 | |
90ef163e YSL |
1675 | libusb_fill_bulk_transfer(transfer, ftdi->usb_dev, ftdi->in_ep, buf, |
1676 | write_size, ftdi_write_data_cb, tc, | |
1677 | ftdi->usb_write_timeout); | |
579b006f | 1678 | transfer->type = LIBUSB_TRANSFER_TYPE_BULK; |
7cc9950e | 1679 | |
579b006f JZ |
1680 | ret = libusb_submit_transfer(transfer); |
1681 | if (ret < 0) | |
1682 | { | |
1683 | libusb_free_transfer(transfer); | |
5e77e870 | 1684 | free(tc); |
579b006f | 1685 | return NULL; |
7cc9950e | 1686 | } |
579b006f JZ |
1687 | tc->transfer = transfer; |
1688 | ||
1689 | return tc; | |
7cc9950e GE |
1690 | } |
1691 | ||
1692 | /** | |
579b006f JZ |
1693 | Reads data from the chip. Does not wait for completion of the transfer |
1694 | nor does it make sure that the transfer was successful. | |
1695 | ||
249888c8 | 1696 | Use libusb 1.0 asynchronous API. |
7cc9950e GE |
1697 | |
1698 | \param ftdi pointer to ftdi_context | |
579b006f JZ |
1699 | \param buf Buffer with the data |
1700 | \param size Size of the buffer | |
4c9e3812 | 1701 | |
579b006f JZ |
1702 | \retval NULL: Some error happens when submit transfer |
1703 | \retval !NULL: Pointer to a ftdi_transfer_control | |
4c9e3812 | 1704 | */ |
579b006f JZ |
1705 | |
1706 | struct ftdi_transfer_control *ftdi_read_data_submit(struct ftdi_context *ftdi, unsigned char *buf, int size) | |
4c9e3812 | 1707 | { |
579b006f JZ |
1708 | struct ftdi_transfer_control *tc; |
1709 | struct libusb_transfer *transfer; | |
1710 | int ret; | |
22d12cda | 1711 | |
22a1b5c1 TJ |
1712 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
1713 | return NULL; | |
1714 | ||
579b006f JZ |
1715 | tc = (struct ftdi_transfer_control *) malloc (sizeof (*tc)); |
1716 | if (!tc) | |
1717 | return NULL; | |
1718 | ||
1719 | tc->ftdi = ftdi; | |
1720 | tc->buf = buf; | |
1721 | tc->size = size; | |
1722 | ||
9e44fc94 | 1723 | if (size <= (int)ftdi->readbuffer_remaining) |
7cc9950e | 1724 | { |
579b006f | 1725 | memcpy (buf, ftdi->readbuffer+ftdi->readbuffer_offset, size); |
7cc9950e | 1726 | |
579b006f JZ |
1727 | // Fix offsets |
1728 | ftdi->readbuffer_remaining -= size; | |
1729 | ftdi->readbuffer_offset += size; | |
7cc9950e | 1730 | |
579b006f | 1731 | /* printf("Returning bytes from buffer: %d - remaining: %d\n", size, ftdi->readbuffer_remaining); */ |
22d12cda | 1732 | |
579b006f JZ |
1733 | tc->completed = 1; |
1734 | tc->offset = size; | |
1735 | tc->transfer = NULL; | |
1736 | return tc; | |
1737 | } | |
4c9e3812 | 1738 | |
579b006f JZ |
1739 | tc->completed = 0; |
1740 | if (ftdi->readbuffer_remaining != 0) | |
1741 | { | |
1742 | memcpy (buf, ftdi->readbuffer+ftdi->readbuffer_offset, ftdi->readbuffer_remaining); | |
22d12cda | 1743 | |
579b006f JZ |
1744 | tc->offset = ftdi->readbuffer_remaining; |
1745 | } | |
1746 | else | |
1747 | tc->offset = 0; | |
22d12cda | 1748 | |
579b006f JZ |
1749 | transfer = libusb_alloc_transfer(0); |
1750 | if (!transfer) | |
1751 | { | |
1752 | free (tc); | |
1753 | return NULL; | |
1754 | } | |
22d12cda | 1755 | |
579b006f JZ |
1756 | ftdi->readbuffer_remaining = 0; |
1757 | ftdi->readbuffer_offset = 0; | |
1758 | ||
1759 | libusb_fill_bulk_transfer(transfer, ftdi->usb_dev, ftdi->out_ep, ftdi->readbuffer, ftdi->readbuffer_chunksize, ftdi_read_data_cb, tc, ftdi->usb_read_timeout); | |
1760 | transfer->type = LIBUSB_TRANSFER_TYPE_BULK; | |
1761 | ||
1762 | ret = libusb_submit_transfer(transfer); | |
1763 | if (ret < 0) | |
1764 | { | |
1765 | libusb_free_transfer(transfer); | |
1766 | free (tc); | |
1767 | return NULL; | |
22d12cda | 1768 | } |
579b006f JZ |
1769 | tc->transfer = transfer; |
1770 | ||
1771 | return tc; | |
4c9e3812 GE |
1772 | } |
1773 | ||
1774 | /** | |
579b006f | 1775 | Wait for completion of the transfer. |
4c9e3812 | 1776 | |
249888c8 | 1777 | Use libusb 1.0 asynchronous API. |
4c9e3812 | 1778 | |
579b006f | 1779 | \param tc pointer to ftdi_transfer_control |
4c9e3812 | 1780 | |
579b006f JZ |
1781 | \retval < 0: Some error happens |
1782 | \retval >= 0: Data size transferred | |
4c9e3812 | 1783 | */ |
579b006f JZ |
1784 | |
1785 | int ftdi_transfer_data_done(struct ftdi_transfer_control *tc) | |
4c9e3812 GE |
1786 | { |
1787 | int ret; | |
1b1bf7e4 | 1788 | struct timeval to = { 0, 0 }; |
579b006f | 1789 | while (!tc->completed) |
22d12cda | 1790 | { |
1b1bf7e4 EH |
1791 | ret = libusb_handle_events_timeout_completed(tc->ftdi->usb_ctx, |
1792 | &to, &tc->completed); | |
4c9e3812 | 1793 | if (ret < 0) |
579b006f JZ |
1794 | { |
1795 | if (ret == LIBUSB_ERROR_INTERRUPTED) | |
1796 | continue; | |
1797 | libusb_cancel_transfer(tc->transfer); | |
1798 | while (!tc->completed) | |
1b1bf7e4 EH |
1799 | if (libusb_handle_events_timeout_completed(tc->ftdi->usb_ctx, |
1800 | &to, &tc->completed) < 0) | |
579b006f JZ |
1801 | break; |
1802 | libusb_free_transfer(tc->transfer); | |
1803 | free (tc); | |
579b006f JZ |
1804 | return ret; |
1805 | } | |
4c9e3812 GE |
1806 | } |
1807 | ||
90ef163e YSL |
1808 | ret = tc->offset; |
1809 | /** | |
1810 | * tc->transfer could be NULL if "(size <= ftdi->readbuffer_remaining)" | |
ef15fab5 | 1811 | * at ftdi_read_data_submit(). Therefore, we need to check it here. |
90ef163e | 1812 | **/ |
ef15fab5 TJ |
1813 | if (tc->transfer) |
1814 | { | |
1815 | if (tc->transfer->status != LIBUSB_TRANSFER_COMPLETED) | |
1816 | ret = -1; | |
1817 | libusb_free_transfer(tc->transfer); | |
90ef163e | 1818 | } |
579b006f JZ |
1819 | free(tc); |
1820 | return ret; | |
4c9e3812 | 1821 | } |
579b006f | 1822 | |
1941414d | 1823 | /** |
1b1bf7e4 EH |
1824 | Cancel transfer and wait for completion. |
1825 | ||
1826 | Use libusb 1.0 asynchronous API. | |
1827 | ||
1828 | \param tc pointer to ftdi_transfer_control | |
1829 | \param to pointer to timeout value or NULL for infinite | |
1830 | */ | |
1831 | ||
1832 | void ftdi_transfer_data_cancel(struct ftdi_transfer_control *tc, | |
1833 | struct timeval * to) | |
1834 | { | |
1835 | struct timeval tv = { 0, 0 }; | |
1836 | ||
1837 | if (!tc->completed && tc->transfer != NULL) | |
1838 | { | |
1839 | if (to == NULL) | |
1840 | to = &tv; | |
1841 | ||
1842 | libusb_cancel_transfer(tc->transfer); | |
1843 | while (!tc->completed) | |
1844 | { | |
1845 | if (libusb_handle_events_timeout_completed(tc->ftdi->usb_ctx, to, &tc->completed) < 0) | |
1846 | break; | |
1847 | } | |
1848 | } | |
1849 | ||
1850 | if (tc->transfer) | |
1851 | libusb_free_transfer(tc->transfer); | |
1852 | ||
1853 | free (tc); | |
1854 | } | |
1855 | ||
1856 | /** | |
1941414d TJ |
1857 | Configure write buffer chunk size. |
1858 | Default is 4096. | |
1859 | ||
1860 | \param ftdi pointer to ftdi_context | |
1861 | \param chunksize Chunk size | |
a3da1d95 | 1862 | |
1941414d | 1863 | \retval 0: all fine |
22a1b5c1 | 1864 | \retval -1: ftdi context invalid |
1941414d | 1865 | */ |
a8f46ddc TJ |
1866 | int ftdi_write_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize) |
1867 | { | |
22a1b5c1 TJ |
1868 | if (ftdi == NULL) |
1869 | ftdi_error_return(-1, "ftdi context invalid"); | |
1870 | ||
948f9ada TJ |
1871 | ftdi->writebuffer_chunksize = chunksize; |
1872 | return 0; | |
1873 | } | |
1874 | ||
1941414d TJ |
1875 | /** |
1876 | Get write buffer chunk size. | |
1877 | ||
1878 | \param ftdi pointer to ftdi_context | |
1879 | \param chunksize Pointer to store chunk size in | |
948f9ada | 1880 | |
1941414d | 1881 | \retval 0: all fine |
22a1b5c1 | 1882 | \retval -1: ftdi context invalid |
1941414d | 1883 | */ |
a8f46ddc TJ |
1884 | int ftdi_write_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize) |
1885 | { | |
22a1b5c1 TJ |
1886 | if (ftdi == NULL) |
1887 | ftdi_error_return(-1, "ftdi context invalid"); | |
1888 | ||
948f9ada TJ |
1889 | *chunksize = ftdi->writebuffer_chunksize; |
1890 | return 0; | |
1891 | } | |
cbabb7d3 | 1892 | |
1941414d TJ |
1893 | /** |
1894 | Reads data in chunks (see ftdi_read_data_set_chunksize()) from the chip. | |
1895 | ||
1896 | Automatically strips the two modem status bytes transfered during every read. | |
948f9ada | 1897 | |
1941414d TJ |
1898 | \param ftdi pointer to ftdi_context |
1899 | \param buf Buffer to store data in | |
1900 | \param size Size of the buffer | |
1901 | ||
22a1b5c1 | 1902 | \retval -666: USB device unavailable |
579b006f | 1903 | \retval <0: error code from libusb_bulk_transfer() |
d77b0e94 | 1904 | \retval 0: no data was available |
1941414d TJ |
1905 | \retval >0: number of bytes read |
1906 | ||
1941414d | 1907 | */ |
a8f46ddc TJ |
1908 | int ftdi_read_data(struct ftdi_context *ftdi, unsigned char *buf, int size) |
1909 | { | |
579b006f | 1910 | int offset = 0, ret, i, num_of_chunks, chunk_remains; |
e2f12a4f | 1911 | int packet_size = ftdi->max_packet_size; |
579b006f | 1912 | int actual_length = 1; |
f2f00cb5 | 1913 | |
22a1b5c1 TJ |
1914 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
1915 | ftdi_error_return(-666, "USB device unavailable"); | |
1916 | ||
e2f12a4f TJ |
1917 | // Packet size sanity check (avoid division by zero) |
1918 | if (packet_size == 0) | |
1919 | ftdi_error_return(-1, "max_packet_size is bogus (zero)"); | |
d9f0cce7 | 1920 | |
948f9ada | 1921 | // everything we want is still in the readbuffer? |
9e44fc94 | 1922 | if (size <= (int)ftdi->readbuffer_remaining) |
22d12cda | 1923 | { |
d9f0cce7 TJ |
1924 | memcpy (buf, ftdi->readbuffer+ftdi->readbuffer_offset, size); |
1925 | ||
1926 | // Fix offsets | |
1927 | ftdi->readbuffer_remaining -= size; | |
1928 | ftdi->readbuffer_offset += size; | |
1929 | ||
545820ce | 1930 | /* printf("Returning bytes from buffer: %d - remaining: %d\n", size, ftdi->readbuffer_remaining); */ |
d9f0cce7 TJ |
1931 | |
1932 | return size; | |
979a145c | 1933 | } |
948f9ada | 1934 | // something still in the readbuffer, but not enough to satisfy 'size'? |
22d12cda TJ |
1935 | if (ftdi->readbuffer_remaining != 0) |
1936 | { | |
d9f0cce7 | 1937 | memcpy (buf, ftdi->readbuffer+ftdi->readbuffer_offset, ftdi->readbuffer_remaining); |
979a145c | 1938 | |
d9f0cce7 TJ |
1939 | // Fix offset |
1940 | offset += ftdi->readbuffer_remaining; | |
948f9ada | 1941 | } |
948f9ada | 1942 | // do the actual USB read |
579b006f | 1943 | while (offset < size && actual_length > 0) |
22d12cda | 1944 | { |
d9f0cce7 TJ |
1945 | ftdi->readbuffer_remaining = 0; |
1946 | ftdi->readbuffer_offset = 0; | |
98452d97 | 1947 | /* returns how much received */ |
579b006f | 1948 | ret = libusb_bulk_transfer (ftdi->usb_dev, ftdi->out_ep, ftdi->readbuffer, ftdi->readbuffer_chunksize, &actual_length, ftdi->usb_read_timeout); |
c3d95b87 TJ |
1949 | if (ret < 0) |
1950 | ftdi_error_return(ret, "usb bulk read failed"); | |
98452d97 | 1951 | |
579b006f | 1952 | if (actual_length > 2) |
22d12cda | 1953 | { |
d9f0cce7 TJ |
1954 | // skip FTDI status bytes. |
1955 | // Maybe stored in the future to enable modem use | |
579b006f JZ |
1956 | num_of_chunks = actual_length / packet_size; |
1957 | chunk_remains = actual_length % packet_size; | |
1958 | //printf("actual_length = %X, num_of_chunks = %X, chunk_remains = %X, readbuffer_offset = %X\n", actual_length, num_of_chunks, chunk_remains, ftdi->readbuffer_offset); | |
1c733d33 | 1959 | |
d9f0cce7 | 1960 | ftdi->readbuffer_offset += 2; |
579b006f | 1961 | actual_length -= 2; |
1c733d33 | 1962 | |
579b006f | 1963 | if (actual_length > packet_size - 2) |
22d12cda | 1964 | { |
1c733d33 | 1965 | for (i = 1; i < num_of_chunks; i++) |
f2f00cb5 DC |
1966 | memmove (ftdi->readbuffer+ftdi->readbuffer_offset+(packet_size - 2)*i, |
1967 | ftdi->readbuffer+ftdi->readbuffer_offset+packet_size*i, | |
1968 | packet_size - 2); | |
22d12cda TJ |
1969 | if (chunk_remains > 2) |
1970 | { | |
f2f00cb5 DC |
1971 | memmove (ftdi->readbuffer+ftdi->readbuffer_offset+(packet_size - 2)*i, |
1972 | ftdi->readbuffer+ftdi->readbuffer_offset+packet_size*i, | |
1c733d33 | 1973 | chunk_remains-2); |
579b006f | 1974 | actual_length -= 2*num_of_chunks; |
22d12cda TJ |
1975 | } |
1976 | else | |
579b006f | 1977 | actual_length -= 2*(num_of_chunks-1)+chunk_remains; |
1c733d33 | 1978 | } |
22d12cda | 1979 | } |
579b006f | 1980 | else if (actual_length <= 2) |
22d12cda | 1981 | { |
d9f0cce7 TJ |
1982 | // no more data to read? |
1983 | return offset; | |
1984 | } | |
579b006f | 1985 | if (actual_length > 0) |
22d12cda | 1986 | { |
d9f0cce7 | 1987 | // data still fits in buf? |
579b006f | 1988 | if (offset+actual_length <= size) |
22d12cda | 1989 | { |
579b006f | 1990 | memcpy (buf+offset, ftdi->readbuffer+ftdi->readbuffer_offset, actual_length); |
545820ce | 1991 | //printf("buf[0] = %X, buf[1] = %X\n", buf[0], buf[1]); |
579b006f | 1992 | offset += actual_length; |
d9f0cce7 | 1993 | |
53ad271d | 1994 | /* Did we read exactly the right amount of bytes? */ |
d9f0cce7 | 1995 | if (offset == size) |
c4446c36 TJ |
1996 | //printf("read_data exact rem %d offset %d\n", |
1997 | //ftdi->readbuffer_remaining, offset); | |
d9f0cce7 | 1998 | return offset; |
22d12cda TJ |
1999 | } |
2000 | else | |
2001 | { | |
d9f0cce7 TJ |
2002 | // only copy part of the data or size <= readbuffer_chunksize |
2003 | int part_size = size-offset; | |
2004 | memcpy (buf+offset, ftdi->readbuffer+ftdi->readbuffer_offset, part_size); | |
98452d97 | 2005 | |
d9f0cce7 | 2006 | ftdi->readbuffer_offset += part_size; |
579b006f | 2007 | ftdi->readbuffer_remaining = actual_length-part_size; |
d9f0cce7 TJ |
2008 | offset += part_size; |
2009 | ||
579b006f JZ |
2010 | /* printf("Returning part: %d - size: %d - offset: %d - actual_length: %d - remaining: %d\n", |
2011 | part_size, size, offset, actual_length, ftdi->readbuffer_remaining); */ | |
d9f0cce7 TJ |
2012 | |
2013 | return offset; | |
2014 | } | |
2015 | } | |
cbabb7d3 | 2016 | } |
948f9ada | 2017 | // never reached |
29c4af7f | 2018 | return -127; |
a3da1d95 GE |
2019 | } |
2020 | ||
1941414d TJ |
2021 | /** |
2022 | Configure read buffer chunk size. | |
2023 | Default is 4096. | |
2024 | ||
2025 | Automatically reallocates the buffer. | |
a3da1d95 | 2026 | |
1941414d TJ |
2027 | \param ftdi pointer to ftdi_context |
2028 | \param chunksize Chunk size | |
2029 | ||
2030 | \retval 0: all fine | |
22a1b5c1 | 2031 | \retval -1: ftdi context invalid |
1941414d | 2032 | */ |
a8f46ddc TJ |
2033 | int ftdi_read_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize) |
2034 | { | |
29c4af7f TJ |
2035 | unsigned char *new_buf; |
2036 | ||
22a1b5c1 TJ |
2037 | if (ftdi == NULL) |
2038 | ftdi_error_return(-1, "ftdi context invalid"); | |
2039 | ||
948f9ada TJ |
2040 | // Invalidate all remaining data |
2041 | ftdi->readbuffer_offset = 0; | |
2042 | ftdi->readbuffer_remaining = 0; | |
8de6eea4 JZ |
2043 | #ifdef __linux__ |
2044 | /* We can't set readbuffer_chunksize larger than MAX_BULK_BUFFER_LENGTH, | |
2045 | which is defined in libusb-1.0. Otherwise, each USB read request will | |
2e685a1f | 2046 | be divided into multiple URBs. This will cause issues on Linux kernel |
8de6eea4 JZ |
2047 | older than 2.6.32. */ |
2048 | if (chunksize > 16384) | |
2049 | chunksize = 16384; | |
2050 | #endif | |
948f9ada | 2051 | |
c3d95b87 TJ |
2052 | if ((new_buf = (unsigned char *)realloc(ftdi->readbuffer, chunksize)) == NULL) |
2053 | ftdi_error_return(-1, "out of memory for readbuffer"); | |
d9f0cce7 | 2054 | |
948f9ada TJ |
2055 | ftdi->readbuffer = new_buf; |
2056 | ftdi->readbuffer_chunksize = chunksize; | |
2057 | ||
2058 | return 0; | |
2059 | } | |
2060 | ||
1941414d TJ |
2061 | /** |
2062 | Get read buffer chunk size. | |
948f9ada | 2063 | |
1941414d TJ |
2064 | \param ftdi pointer to ftdi_context |
2065 | \param chunksize Pointer to store chunk size in | |
2066 | ||
2067 | \retval 0: all fine | |
22a1b5c1 | 2068 | \retval -1: FTDI context invalid |
1941414d | 2069 | */ |
a8f46ddc TJ |
2070 | int ftdi_read_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize) |
2071 | { | |
22a1b5c1 TJ |
2072 | if (ftdi == NULL) |
2073 | ftdi_error_return(-1, "FTDI context invalid"); | |
2074 | ||
948f9ada TJ |
2075 | *chunksize = ftdi->readbuffer_chunksize; |
2076 | return 0; | |
2077 | } | |
2078 | ||
1941414d | 2079 | /** |
2d790e37 | 2080 | Enable/disable bitbang modes. |
1941414d TJ |
2081 | |
2082 | \param ftdi pointer to ftdi_context | |
2083 | \param bitmask Bitmask to configure lines. | |
2084 | HIGH/ON value configures a line as output. | |
2d790e37 | 2085 | \param mode Bitbang mode: use the values defined in \ref ftdi_mpsse_mode |
1941414d TJ |
2086 | |
2087 | \retval 0: all fine | |
2088 | \retval -1: can't enable bitbang mode | |
22a1b5c1 | 2089 | \retval -2: USB device unavailable |
1941414d | 2090 | */ |
2d790e37 | 2091 | int ftdi_set_bitmode(struct ftdi_context *ftdi, unsigned char bitmask, unsigned char mode) |
a8f46ddc | 2092 | { |
a3da1d95 GE |
2093 | unsigned short usb_val; |
2094 | ||
22a1b5c1 TJ |
2095 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2096 | ftdi_error_return(-2, "USB device unavailable"); | |
2097 | ||
d9f0cce7 | 2098 | usb_val = bitmask; // low byte: bitmask |
2d790e37 TJ |
2099 | usb_val |= (mode << 8); |
2100 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, SIO_SET_BITMODE_REQUEST, usb_val, ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0) | |
2101 | ftdi_error_return(-1, "unable to configure bitbang mode. Perhaps not a BM/2232C type chip?"); | |
c3d95b87 | 2102 | |
2d790e37 TJ |
2103 | ftdi->bitbang_mode = mode; |
2104 | ftdi->bitbang_enabled = (mode == BITMODE_RESET) ? 0 : 1; | |
a3da1d95 GE |
2105 | return 0; |
2106 | } | |
2107 | ||
1941414d TJ |
2108 | /** |
2109 | Disable bitbang mode. | |
a3da1d95 | 2110 | |
1941414d TJ |
2111 | \param ftdi pointer to ftdi_context |
2112 | ||
2113 | \retval 0: all fine | |
2114 | \retval -1: can't disable bitbang mode | |
22a1b5c1 | 2115 | \retval -2: USB device unavailable |
1941414d | 2116 | */ |
a8f46ddc TJ |
2117 | int ftdi_disable_bitbang(struct ftdi_context *ftdi) |
2118 | { | |
22a1b5c1 TJ |
2119 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2120 | ftdi_error_return(-2, "USB device unavailable"); | |
2121 | ||
579b006f | 2122 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, SIO_SET_BITMODE_REQUEST, 0, ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0) |
c3d95b87 | 2123 | ftdi_error_return(-1, "unable to leave bitbang mode. Perhaps not a BM type chip?"); |
a3da1d95 GE |
2124 | |
2125 | ftdi->bitbang_enabled = 0; | |
2126 | return 0; | |
2127 | } | |
2128 | ||
c4446c36 | 2129 | |
1941414d | 2130 | /** |
418aaa72 | 2131 | Directly read pin state, circumventing the read buffer. Useful for bitbang mode. |
1941414d TJ |
2132 | |
2133 | \param ftdi pointer to ftdi_context | |
2134 | \param pins Pointer to store pins into | |
2135 | ||
2136 | \retval 0: all fine | |
2137 | \retval -1: read pins failed | |
22a1b5c1 | 2138 | \retval -2: USB device unavailable |
1941414d | 2139 | */ |
a8f46ddc TJ |
2140 | int ftdi_read_pins(struct ftdi_context *ftdi, unsigned char *pins) |
2141 | { | |
22a1b5c1 TJ |
2142 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2143 | ftdi_error_return(-2, "USB device unavailable"); | |
2144 | ||
579b006f | 2145 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_IN_REQTYPE, SIO_READ_PINS_REQUEST, 0, ftdi->index, (unsigned char *)pins, 1, ftdi->usb_read_timeout) != 1) |
c3d95b87 | 2146 | ftdi_error_return(-1, "read pins failed"); |
a3da1d95 | 2147 | |
a3da1d95 GE |
2148 | return 0; |
2149 | } | |
2150 | ||
1941414d TJ |
2151 | /** |
2152 | Set latency timer | |
2153 | ||
2154 | The FTDI chip keeps data in the internal buffer for a specific | |
2155 | amount of time if the buffer is not full yet to decrease | |
2156 | load on the usb bus. | |
a3da1d95 | 2157 | |
1941414d TJ |
2158 | \param ftdi pointer to ftdi_context |
2159 | \param latency Value between 1 and 255 | |
2160 | ||
2161 | \retval 0: all fine | |
2162 | \retval -1: latency out of range | |
2163 | \retval -2: unable to set latency timer | |
22a1b5c1 | 2164 | \retval -3: USB device unavailable |
1941414d | 2165 | */ |
a8f46ddc TJ |
2166 | int ftdi_set_latency_timer(struct ftdi_context *ftdi, unsigned char latency) |
2167 | { | |
a3da1d95 GE |
2168 | unsigned short usb_val; |
2169 | ||
c3d95b87 TJ |
2170 | if (latency < 1) |
2171 | ftdi_error_return(-1, "latency out of range. Only valid for 1-255"); | |
a3da1d95 | 2172 | |
22a1b5c1 TJ |
2173 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2174 | ftdi_error_return(-3, "USB device unavailable"); | |
2175 | ||
d79d2e68 | 2176 | usb_val = latency; |
579b006f | 2177 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, SIO_SET_LATENCY_TIMER_REQUEST, usb_val, ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0) |
c3d95b87 TJ |
2178 | ftdi_error_return(-2, "unable to set latency timer"); |
2179 | ||
a3da1d95 GE |
2180 | return 0; |
2181 | } | |
2182 | ||
1941414d TJ |
2183 | /** |
2184 | Get latency timer | |
a3da1d95 | 2185 | |
1941414d TJ |
2186 | \param ftdi pointer to ftdi_context |
2187 | \param latency Pointer to store latency value in | |
2188 | ||
2189 | \retval 0: all fine | |
2190 | \retval -1: unable to get latency timer | |
22a1b5c1 | 2191 | \retval -2: USB device unavailable |
1941414d | 2192 | */ |
a8f46ddc TJ |
2193 | int ftdi_get_latency_timer(struct ftdi_context *ftdi, unsigned char *latency) |
2194 | { | |
a3da1d95 | 2195 | unsigned short usb_val; |
22a1b5c1 TJ |
2196 | |
2197 | if (ftdi == NULL || ftdi->usb_dev == NULL) | |
2198 | ftdi_error_return(-2, "USB device unavailable"); | |
2199 | ||
579b006f | 2200 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_IN_REQTYPE, SIO_GET_LATENCY_TIMER_REQUEST, 0, ftdi->index, (unsigned char *)&usb_val, 1, ftdi->usb_read_timeout) != 1) |
c3d95b87 | 2201 | ftdi_error_return(-1, "reading latency timer failed"); |
a3da1d95 GE |
2202 | |
2203 | *latency = (unsigned char)usb_val; | |
2204 | return 0; | |
2205 | } | |
2206 | ||
1941414d | 2207 | /** |
1189b11a TJ |
2208 | Poll modem status information |
2209 | ||
2210 | This function allows the retrieve the two status bytes of the device. | |
2211 | The device sends these bytes also as a header for each read access | |
2212 | where they are discarded by ftdi_read_data(). The chip generates | |
2213 | the two stripped status bytes in the absence of data every 40 ms. | |
2214 | ||
2215 | Layout of the first byte: | |
2216 | - B0..B3 - must be 0 | |
2217 | - B4 Clear to send (CTS) | |
2218 | 0 = inactive | |
2219 | 1 = active | |
2220 | - B5 Data set ready (DTS) | |
2221 | 0 = inactive | |
2222 | 1 = active | |
2223 | - B6 Ring indicator (RI) | |
2224 | 0 = inactive | |
2225 | 1 = active | |
2226 | - B7 Receive line signal detect (RLSD) | |
2227 | 0 = inactive | |
2228 | 1 = active | |
2229 | ||
2230 | Layout of the second byte: | |
2231 | - B0 Data ready (DR) | |
2232 | - B1 Overrun error (OE) | |
2233 | - B2 Parity error (PE) | |
2234 | - B3 Framing error (FE) | |
2235 | - B4 Break interrupt (BI) | |
2236 | - B5 Transmitter holding register (THRE) | |
2237 | - B6 Transmitter empty (TEMT) | |
2238 | - B7 Error in RCVR FIFO | |
2239 | ||
2240 | \param ftdi pointer to ftdi_context | |
2241 | \param status Pointer to store status information in. Must be two bytes. | |
2242 | ||
2243 | \retval 0: all fine | |
2244 | \retval -1: unable to retrieve status information | |
22a1b5c1 | 2245 | \retval -2: USB device unavailable |
1189b11a TJ |
2246 | */ |
2247 | int ftdi_poll_modem_status(struct ftdi_context *ftdi, unsigned short *status) | |
2248 | { | |
2249 | char usb_val[2]; | |
2250 | ||
22a1b5c1 TJ |
2251 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2252 | ftdi_error_return(-2, "USB device unavailable"); | |
2253 | ||
579b006f | 2254 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_IN_REQTYPE, SIO_POLL_MODEM_STATUS_REQUEST, 0, ftdi->index, (unsigned char *)usb_val, 2, ftdi->usb_read_timeout) != 2) |
1189b11a TJ |
2255 | ftdi_error_return(-1, "getting modem status failed"); |
2256 | ||
dc09eaa8 | 2257 | *status = (usb_val[1] << 8) | (usb_val[0] & 0xFF); |
1189b11a TJ |
2258 | |
2259 | return 0; | |
2260 | } | |
2261 | ||
a7fb8440 TJ |
2262 | /** |
2263 | Set flowcontrol for ftdi chip | |
2264 | ||
2265 | \param ftdi pointer to ftdi_context | |
22d12cda TJ |
2266 | \param flowctrl flow control to use. should be |
2267 | SIO_DISABLE_FLOW_CTRL, SIO_RTS_CTS_HS, SIO_DTR_DSR_HS or SIO_XON_XOFF_HS | |
a7fb8440 TJ |
2268 | |
2269 | \retval 0: all fine | |
2270 | \retval -1: set flow control failed | |
22a1b5c1 | 2271 | \retval -2: USB device unavailable |
a7fb8440 TJ |
2272 | */ |
2273 | int ftdi_setflowctrl(struct ftdi_context *ftdi, int flowctrl) | |
2274 | { | |
22a1b5c1 TJ |
2275 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2276 | ftdi_error_return(-2, "USB device unavailable"); | |
2277 | ||
579b006f JZ |
2278 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
2279 | SIO_SET_FLOW_CTRL_REQUEST, 0, (flowctrl | ftdi->index), | |
2280 | NULL, 0, ftdi->usb_write_timeout) < 0) | |
a7fb8440 TJ |
2281 | ftdi_error_return(-1, "set flow control failed"); |
2282 | ||
2283 | return 0; | |
2284 | } | |
2285 | ||
2286 | /** | |
2287 | Set dtr line | |
2288 | ||
2289 | \param ftdi pointer to ftdi_context | |
2290 | \param state state to set line to (1 or 0) | |
2291 | ||
2292 | \retval 0: all fine | |
2293 | \retval -1: set dtr failed | |
22a1b5c1 | 2294 | \retval -2: USB device unavailable |
a7fb8440 TJ |
2295 | */ |
2296 | int ftdi_setdtr(struct ftdi_context *ftdi, int state) | |
2297 | { | |
2298 | unsigned short usb_val; | |
2299 | ||
22a1b5c1 TJ |
2300 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2301 | ftdi_error_return(-2, "USB device unavailable"); | |
2302 | ||
a7fb8440 TJ |
2303 | if (state) |
2304 | usb_val = SIO_SET_DTR_HIGH; | |
2305 | else | |
2306 | usb_val = SIO_SET_DTR_LOW; | |
2307 | ||
579b006f JZ |
2308 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
2309 | SIO_SET_MODEM_CTRL_REQUEST, usb_val, ftdi->index, | |
2310 | NULL, 0, ftdi->usb_write_timeout) < 0) | |
a7fb8440 TJ |
2311 | ftdi_error_return(-1, "set dtr failed"); |
2312 | ||
2313 | return 0; | |
2314 | } | |
2315 | ||
2316 | /** | |
2317 | Set rts line | |
2318 | ||
2319 | \param ftdi pointer to ftdi_context | |
2320 | \param state state to set line to (1 or 0) | |
2321 | ||
2322 | \retval 0: all fine | |
22a1b5c1 TJ |
2323 | \retval -1: set rts failed |
2324 | \retval -2: USB device unavailable | |
a7fb8440 TJ |
2325 | */ |
2326 | int ftdi_setrts(struct ftdi_context *ftdi, int state) | |
2327 | { | |
2328 | unsigned short usb_val; | |
2329 | ||
22a1b5c1 TJ |
2330 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2331 | ftdi_error_return(-2, "USB device unavailable"); | |
2332 | ||
a7fb8440 TJ |
2333 | if (state) |
2334 | usb_val = SIO_SET_RTS_HIGH; | |
2335 | else | |
2336 | usb_val = SIO_SET_RTS_LOW; | |
2337 | ||
579b006f JZ |
2338 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
2339 | SIO_SET_MODEM_CTRL_REQUEST, usb_val, ftdi->index, | |
2340 | NULL, 0, ftdi->usb_write_timeout) < 0) | |
a7fb8440 TJ |
2341 | ftdi_error_return(-1, "set of rts failed"); |
2342 | ||
2343 | return 0; | |
2344 | } | |
2345 | ||
1189b11a | 2346 | /** |
22a1b5c1 | 2347 | Set dtr and rts line in one pass |
9ecfef2a | 2348 | |
22a1b5c1 TJ |
2349 | \param ftdi pointer to ftdi_context |
2350 | \param dtr DTR state to set line to (1 or 0) | |
2351 | \param rts RTS state to set line to (1 or 0) | |
9ecfef2a | 2352 | |
22a1b5c1 TJ |
2353 | \retval 0: all fine |
2354 | \retval -1: set dtr/rts failed | |
2355 | \retval -2: USB device unavailable | |
9ecfef2a TJ |
2356 | */ |
2357 | int ftdi_setdtr_rts(struct ftdi_context *ftdi, int dtr, int rts) | |
2358 | { | |
2359 | unsigned short usb_val; | |
2360 | ||
22a1b5c1 TJ |
2361 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2362 | ftdi_error_return(-2, "USB device unavailable"); | |
2363 | ||
9ecfef2a | 2364 | if (dtr) |
22d12cda | 2365 | usb_val = SIO_SET_DTR_HIGH; |
9ecfef2a | 2366 | else |
22d12cda | 2367 | usb_val = SIO_SET_DTR_LOW; |
9ecfef2a TJ |
2368 | |
2369 | if (rts) | |
22d12cda | 2370 | usb_val |= SIO_SET_RTS_HIGH; |
9ecfef2a | 2371 | else |
22d12cda | 2372 | usb_val |= SIO_SET_RTS_LOW; |
9ecfef2a | 2373 | |
579b006f JZ |
2374 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
2375 | SIO_SET_MODEM_CTRL_REQUEST, usb_val, ftdi->index, | |
2376 | NULL, 0, ftdi->usb_write_timeout) < 0) | |
22d12cda | 2377 | ftdi_error_return(-1, "set of rts/dtr failed"); |
9ecfef2a TJ |
2378 | |
2379 | return 0; | |
2380 | } | |
2381 | ||
2382 | /** | |
1189b11a TJ |
2383 | Set the special event character |
2384 | ||
2385 | \param ftdi pointer to ftdi_context | |
2386 | \param eventch Event character | |
2387 | \param enable 0 to disable the event character, non-zero otherwise | |
2388 | ||
2389 | \retval 0: all fine | |
2390 | \retval -1: unable to set event character | |
22a1b5c1 | 2391 | \retval -2: USB device unavailable |
1189b11a TJ |
2392 | */ |
2393 | int ftdi_set_event_char(struct ftdi_context *ftdi, | |
22d12cda | 2394 | unsigned char eventch, unsigned char enable) |
1189b11a TJ |
2395 | { |
2396 | unsigned short usb_val; | |
2397 | ||
22a1b5c1 TJ |
2398 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2399 | ftdi_error_return(-2, "USB device unavailable"); | |
2400 | ||
1189b11a TJ |
2401 | usb_val = eventch; |
2402 | if (enable) | |
2403 | usb_val |= 1 << 8; | |
2404 | ||
579b006f | 2405 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, SIO_SET_EVENT_CHAR_REQUEST, usb_val, ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0) |
1189b11a TJ |
2406 | ftdi_error_return(-1, "setting event character failed"); |
2407 | ||
2408 | return 0; | |
2409 | } | |
2410 | ||
2411 | /** | |
2412 | Set error character | |
2413 | ||
2414 | \param ftdi pointer to ftdi_context | |
2415 | \param errorch Error character | |
2416 | \param enable 0 to disable the error character, non-zero otherwise | |
2417 | ||
2418 | \retval 0: all fine | |
2419 | \retval -1: unable to set error character | |
22a1b5c1 | 2420 | \retval -2: USB device unavailable |
1189b11a TJ |
2421 | */ |
2422 | int ftdi_set_error_char(struct ftdi_context *ftdi, | |
22d12cda | 2423 | unsigned char errorch, unsigned char enable) |
1189b11a TJ |
2424 | { |
2425 | unsigned short usb_val; | |
2426 | ||
22a1b5c1 TJ |
2427 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2428 | ftdi_error_return(-2, "USB device unavailable"); | |
2429 | ||
1189b11a TJ |
2430 | usb_val = errorch; |
2431 | if (enable) | |
2432 | usb_val |= 1 << 8; | |
2433 | ||
579b006f | 2434 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, SIO_SET_ERROR_CHAR_REQUEST, usb_val, ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0) |
1189b11a TJ |
2435 | ftdi_error_return(-1, "setting error character failed"); |
2436 | ||
2437 | return 0; | |
2438 | } | |
2439 | ||
2440 | /** | |
44f41f11 | 2441 | Init eeprom with default values for the connected device |
a35aa9bd | 2442 | \param ftdi pointer to ftdi_context |
f14f84d3 UB |
2443 | \param manufacturer String to use as Manufacturer |
2444 | \param product String to use as Product description | |
2445 | \param serial String to use as Serial number description | |
4e74064b | 2446 | |
f14f84d3 UB |
2447 | \retval 0: all fine |
2448 | \retval -1: No struct ftdi_context | |
2449 | \retval -2: No struct ftdi_eeprom | |
44f41f11 | 2450 | \retval -3: No connected device or device not yet opened |
1941414d | 2451 | */ |
f14f84d3 | 2452 | int ftdi_eeprom_initdefaults(struct ftdi_context *ftdi, char * manufacturer, |
56ac0383 | 2453 | char * product, char * serial) |
a8f46ddc | 2454 | { |
c0a96aed | 2455 | struct ftdi_eeprom *eeprom; |
f505134f | 2456 | |
c0a96aed | 2457 | if (ftdi == NULL) |
f14f84d3 | 2458 | ftdi_error_return(-1, "No struct ftdi_context"); |
c0a96aed UB |
2459 | |
2460 | if (ftdi->eeprom == NULL) | |
56ac0383 | 2461 | ftdi_error_return(-2,"No struct ftdi_eeprom"); |
22a1b5c1 | 2462 | |
c0a96aed | 2463 | eeprom = ftdi->eeprom; |
a02587d5 | 2464 | memset(eeprom, 0, sizeof(struct ftdi_eeprom)); |
c0a96aed | 2465 | |
44f41f11 UB |
2466 | if (ftdi->usb_dev == NULL) |
2467 | ftdi_error_return(-3, "No connected device or device not yet opened"); | |
2468 | ||
f396dbad | 2469 | eeprom->vendor_id = 0x0403; |
d4b5af27 | 2470 | eeprom->use_serial = 1; |
56ac0383 TJ |
2471 | if ((ftdi->type == TYPE_AM) || (ftdi->type == TYPE_BM) || |
2472 | (ftdi->type == TYPE_R)) | |
a02587d5 | 2473 | eeprom->product_id = 0x6001; |
c7e4c09e UB |
2474 | else if (ftdi->type == TYPE_4232H) |
2475 | eeprom->product_id = 0x6011; | |
2476 | else if (ftdi->type == TYPE_232H) | |
2477 | eeprom->product_id = 0x6014; | |
2f80efc2 NP |
2478 | else if (ftdi->type == TYPE_230X) |
2479 | eeprom->product_id = 0x6015; | |
a02587d5 UB |
2480 | else |
2481 | eeprom->product_id = 0x6010; | |
2f80efc2 | 2482 | |
b1859923 UB |
2483 | if (ftdi->type == TYPE_AM) |
2484 | eeprom->usb_version = 0x0101; | |
2485 | else | |
2486 | eeprom->usb_version = 0x0200; | |
a886436a | 2487 | eeprom->max_power = 100; |
d9f0cce7 | 2488 | |
74e8e79d UB |
2489 | if (eeprom->manufacturer) |
2490 | free (eeprom->manufacturer); | |
b8aa7b35 | 2491 | eeprom->manufacturer = NULL; |
74e8e79d UB |
2492 | if (manufacturer) |
2493 | { | |
c45d2630 | 2494 | eeprom->manufacturer = (char *)malloc(strlen(manufacturer)+1); |
74e8e79d UB |
2495 | if (eeprom->manufacturer) |
2496 | strcpy(eeprom->manufacturer, manufacturer); | |
2497 | } | |
2498 | ||
2499 | if (eeprom->product) | |
2500 | free (eeprom->product); | |
b8aa7b35 | 2501 | eeprom->product = NULL; |
10771971 | 2502 | if(product) |
74e8e79d | 2503 | { |
c45d2630 | 2504 | eeprom->product = (char *)malloc(strlen(product)+1); |
74e8e79d UB |
2505 | if (eeprom->product) |
2506 | strcpy(eeprom->product, product); | |
2507 | } | |
6a6fcd89 UB |
2508 | else |
2509 | { | |
2510 | const char* default_product; | |
2511 | switch(ftdi->type) | |
2512 | { | |
74387f27 TJ |
2513 | case TYPE_AM: default_product = "AM"; break; |
2514 | case TYPE_BM: default_product = "BM"; break; | |
2515 | case TYPE_2232C: default_product = "Dual RS232"; break; | |
2516 | case TYPE_R: default_product = "FT232R USB UART"; break; | |
2517 | case TYPE_2232H: default_product = "Dual RS232-HS"; break; | |
2518 | case TYPE_4232H: default_product = "FT4232H"; break; | |
2519 | case TYPE_232H: default_product = "Single-RS232-HS"; break; | |
2520 | case TYPE_230X: default_product = "FT230X Basic UART"; break; | |
2521 | default: | |
2522 | ftdi_error_return(-3, "Unknown chip type"); | |
6a6fcd89 | 2523 | } |
c45d2630 | 2524 | eeprom->product = (char *)malloc(strlen(default_product) +1); |
6a6fcd89 UB |
2525 | if (eeprom->product) |
2526 | strcpy(eeprom->product, default_product); | |
2527 | } | |
74e8e79d UB |
2528 | |
2529 | if (eeprom->serial) | |
2530 | free (eeprom->serial); | |
b8aa7b35 | 2531 | eeprom->serial = NULL; |
74e8e79d UB |
2532 | if (serial) |
2533 | { | |
c45d2630 | 2534 | eeprom->serial = (char *)malloc(strlen(serial)+1); |
74e8e79d UB |
2535 | if (eeprom->serial) |
2536 | strcpy(eeprom->serial, serial); | |
2537 | } | |
2538 | ||
56ac0383 | 2539 | if (ftdi->type == TYPE_R) |
a4980043 | 2540 | { |
a886436a | 2541 | eeprom->max_power = 90; |
a02587d5 | 2542 | eeprom->size = 0x80; |
a4980043 UB |
2543 | eeprom->cbus_function[0] = CBUS_TXLED; |
2544 | eeprom->cbus_function[1] = CBUS_RXLED; | |
2545 | eeprom->cbus_function[2] = CBUS_TXDEN; | |
2546 | eeprom->cbus_function[3] = CBUS_PWREN; | |
2547 | eeprom->cbus_function[4] = CBUS_SLEEP; | |
2548 | } | |
2f80efc2 NP |
2549 | else if (ftdi->type == TYPE_230X) |
2550 | { | |
2551 | eeprom->max_power = 90; | |
2552 | eeprom->size = 0x100; | |
add00ad6 RH |
2553 | eeprom->cbus_function[0] = CBUSX_TXDEN; |
2554 | eeprom->cbus_function[1] = CBUSX_RXLED; | |
2555 | eeprom->cbus_function[2] = CBUSX_TXLED; | |
2556 | eeprom->cbus_function[3] = CBUSX_SLEEP; | |
2f80efc2 | 2557 | } |
a02587d5 | 2558 | else |
263d3ba0 UB |
2559 | { |
2560 | if(ftdi->type == TYPE_232H) | |
2561 | { | |
2562 | int i; | |
2563 | for (i=0; i<10; i++) | |
2564 | eeprom->cbus_function[i] = CBUSH_TRISTATE; | |
2565 | } | |
a02587d5 | 2566 | eeprom->size = -1; |
263d3ba0 | 2567 | } |
68e78641 JS |
2568 | switch (ftdi->type) |
2569 | { | |
2570 | case TYPE_AM: | |
2571 | eeprom->release_number = 0x0200; | |
2572 | break; | |
2573 | case TYPE_BM: | |
2574 | eeprom->release_number = 0x0400; | |
2575 | break; | |
2576 | case TYPE_2232C: | |
2577 | eeprom->release_number = 0x0500; | |
2578 | break; | |
2579 | case TYPE_R: | |
2580 | eeprom->release_number = 0x0600; | |
2581 | break; | |
2582 | case TYPE_2232H: | |
2583 | eeprom->release_number = 0x0700; | |
2584 | break; | |
2585 | case TYPE_4232H: | |
2586 | eeprom->release_number = 0x0800; | |
2587 | break; | |
2588 | case TYPE_232H: | |
2589 | eeprom->release_number = 0x0900; | |
2590 | break; | |
2f80efc2 NP |
2591 | case TYPE_230X: |
2592 | eeprom->release_number = 0x1000; | |
2593 | break; | |
68e78641 JS |
2594 | default: |
2595 | eeprom->release_number = 0x00; | |
2596 | } | |
f14f84d3 | 2597 | return 0; |
b8aa7b35 | 2598 | } |
878f0c6a NP |
2599 | |
2600 | int ftdi_eeprom_set_strings(struct ftdi_context *ftdi, char * manufacturer, | |
74387f27 | 2601 | char * product, char * serial) |
878f0c6a NP |
2602 | { |
2603 | struct ftdi_eeprom *eeprom; | |
2604 | ||
2605 | if (ftdi == NULL) | |
2606 | ftdi_error_return(-1, "No struct ftdi_context"); | |
2607 | ||
2608 | if (ftdi->eeprom == NULL) | |
2609 | ftdi_error_return(-2,"No struct ftdi_eeprom"); | |
2610 | ||
2611 | eeprom = ftdi->eeprom; | |
2612 | ||
2613 | if (ftdi->usb_dev == NULL) | |
2614 | ftdi_error_return(-3, "No connected device or device not yet opened"); | |
2615 | ||
74387f27 TJ |
2616 | if (manufacturer) |
2617 | { | |
878f0c6a NP |
2618 | if (eeprom->manufacturer) |
2619 | free (eeprom->manufacturer); | |
c45d2630 | 2620 | eeprom->manufacturer = (char *)malloc(strlen(manufacturer)+1); |
878f0c6a NP |
2621 | if (eeprom->manufacturer) |
2622 | strcpy(eeprom->manufacturer, manufacturer); | |
2623 | } | |
2624 | ||
74387f27 TJ |
2625 | if(product) |
2626 | { | |
878f0c6a NP |
2627 | if (eeprom->product) |
2628 | free (eeprom->product); | |
c45d2630 | 2629 | eeprom->product = (char *)malloc(strlen(product)+1); |
878f0c6a NP |
2630 | if (eeprom->product) |
2631 | strcpy(eeprom->product, product); | |
2632 | } | |
2633 | ||
74387f27 TJ |
2634 | if (serial) |
2635 | { | |
878f0c6a NP |
2636 | if (eeprom->serial) |
2637 | free (eeprom->serial); | |
c45d2630 | 2638 | eeprom->serial = (char *)malloc(strlen(serial)+1); |
74387f27 TJ |
2639 | if (eeprom->serial) |
2640 | { | |
878f0c6a NP |
2641 | strcpy(eeprom->serial, serial); |
2642 | eeprom->use_serial = 1; | |
2643 | } | |
2644 | } | |
2645 | return 0; | |
2646 | } | |
2647 | ||
934173a3 TJ |
2648 | /** |
2649 | Return device ID strings from the eeprom. Device needs to be connected. | |
2650 | ||
2651 | The parameters manufacturer, description and serial may be NULL | |
2652 | or pointer to buffers to store the fetched strings. | |
2653 | ||
2654 | \param ftdi pointer to ftdi_context | |
2655 | \param manufacturer Store manufacturer string here if not NULL | |
2656 | \param mnf_len Buffer size of manufacturer string | |
2657 | \param product Store product description string here if not NULL | |
2658 | \param prod_len Buffer size of product description string | |
2659 | \param serial Store serial string here if not NULL | |
2660 | \param serial_len Buffer size of serial string | |
2661 | ||
2662 | \retval 0: all fine | |
2663 | \retval -1: ftdi context invalid | |
2664 | \retval -2: ftdi eeprom buffer invalid | |
934173a3 | 2665 | */ |
c9eeb2f1 AM |
2666 | int ftdi_eeprom_get_strings(struct ftdi_context *ftdi, |
2667 | char *manufacturer, int mnf_len, | |
2668 | char *product, int prod_len, | |
2669 | char *serial, int serial_len) | |
2670 | { | |
2671 | struct ftdi_eeprom *eeprom; | |
2672 | ||
2673 | if (ftdi == NULL) | |
2674 | ftdi_error_return(-1, "No struct ftdi_context"); | |
c9eeb2f1 | 2675 | if (ftdi->eeprom == NULL) |
4effe148 | 2676 | ftdi_error_return(-2, "No struct ftdi_eeprom"); |
c9eeb2f1 AM |
2677 | |
2678 | eeprom = ftdi->eeprom; | |
2679 | ||
c9eeb2f1 AM |
2680 | if (manufacturer) |
2681 | { | |
2682 | strncpy(manufacturer, eeprom->manufacturer, mnf_len); | |
2683 | if (mnf_len > 0) | |
2684 | manufacturer[mnf_len - 1] = '\0'; | |
2685 | } | |
2686 | ||
2687 | if (product) | |
2688 | { | |
2689 | strncpy(product, eeprom->product, prod_len); | |
2690 | if (prod_len > 0) | |
2691 | product[prod_len - 1] = '\0'; | |
2692 | } | |
2693 | ||
2694 | if (serial) | |
2695 | { | |
2696 | strncpy(serial, eeprom->serial, serial_len); | |
2697 | if (serial_len > 0) | |
2698 | serial[serial_len - 1] = '\0'; | |
2699 | } | |
2700 | ||
2701 | return 0; | |
2702 | } | |
878f0c6a | 2703 | |
add00ad6 | 2704 | /*FTD2XX doesn't check for values not fitting in the ACBUS Signal options*/ |
263d3ba0 UB |
2705 | void set_ft232h_cbus(struct ftdi_eeprom *eeprom, unsigned char * output) |
2706 | { | |
2707 | int i; | |
74387f27 | 2708 | for(i=0; i<5; i++) |
263d3ba0 UB |
2709 | { |
2710 | int mode_low, mode_high; | |
2711 | if (eeprom->cbus_function[2*i]> CBUSH_CLK7_5) | |
2712 | mode_low = CBUSH_TRISTATE; | |
2713 | else | |
2714 | mode_low = eeprom->cbus_function[2*i]; | |
2715 | if (eeprom->cbus_function[2*i+1]> CBUSH_CLK7_5) | |
2716 | mode_high = CBUSH_TRISTATE; | |
2717 | else | |
f37a1524 | 2718 | mode_high = eeprom->cbus_function[2*i+1]; |
b8aa7b35 | 2719 | |
f37a1524 | 2720 | output[0x18+i] = (mode_high <<4) | mode_low; |
263d3ba0 UB |
2721 | } |
2722 | } | |
c8f69686 UB |
2723 | /* Return the bits for the encoded EEPROM Structure of a requested Mode |
2724 | * | |
2725 | */ | |
2726 | static unsigned char type2bit(unsigned char type, enum ftdi_chip_type chip) | |
2727 | { | |
2728 | switch (chip) | |
2729 | { | |
74387f27 TJ |
2730 | case TYPE_2232H: |
2731 | case TYPE_2232C: | |
c8f69686 | 2732 | { |
74387f27 TJ |
2733 | switch (type) |
2734 | { | |
2735 | case CHANNEL_IS_UART: return 0; | |
2736 | case CHANNEL_IS_FIFO: return 0x01; | |
2737 | case CHANNEL_IS_OPTO: return 0x02; | |
2738 | case CHANNEL_IS_CPU : return 0x04; | |
2739 | default: return 0; | |
2740 | } | |
c8f69686 | 2741 | } |
74387f27 | 2742 | case TYPE_232H: |
c8f69686 | 2743 | { |
74387f27 TJ |
2744 | switch (type) |
2745 | { | |
2746 | case CHANNEL_IS_UART : return 0; | |
2747 | case CHANNEL_IS_FIFO : return 0x01; | |
2748 | case CHANNEL_IS_OPTO : return 0x02; | |
2749 | case CHANNEL_IS_CPU : return 0x04; | |
2750 | case CHANNEL_IS_FT1284 : return 0x08; | |
2751 | default: return 0; | |
2752 | } | |
c8f69686 | 2753 | } |
6f9f969d RF |
2754 | case TYPE_R: |
2755 | { | |
2756 | switch (type) | |
2757 | { | |
2758 | case CHANNEL_IS_UART : return 0; | |
2759 | case CHANNEL_IS_FIFO : return 0x01; | |
2760 | default: return 0; | |
2761 | } | |
2762 | } | |
74387f27 TJ |
2763 | case TYPE_230X: /* FT230X is only UART */ |
2764 | default: return 0; | |
c8f69686 UB |
2765 | } |
2766 | return 0; | |
74387f27 | 2767 | } |
c8f69686 | 2768 | |
1941414d | 2769 | /** |
a35aa9bd | 2770 | Build binary buffer from ftdi_eeprom structure. |
22a1b5c1 | 2771 | Output is suitable for ftdi_write_eeprom(). |
b8aa7b35 | 2772 | |
a35aa9bd | 2773 | \param ftdi pointer to ftdi_context |
1941414d | 2774 | |
516ebfb1 | 2775 | \retval >=0: size of eeprom user area in bytes |
22a1b5c1 | 2776 | \retval -1: eeprom size (128 bytes) exceeded by custom strings |
2c1e2bde TJ |
2777 | \retval -2: Invalid eeprom or ftdi pointer |
2778 | \retval -3: Invalid cbus function setting (FIXME: Not in the code?) | |
2779 | \retval -4: Chip doesn't support invert (FIXME: Not in the code?) | |
2780 | \retval -5: Chip doesn't support high current drive (FIXME: Not in the code?) | |
2b9a3c82 | 2781 | \retval -6: No connected EEPROM or EEPROM Type unknown |
b8aa7b35 | 2782 | */ |
a35aa9bd | 2783 | int ftdi_eeprom_build(struct ftdi_context *ftdi) |
a8f46ddc | 2784 | { |
e2bbd9af | 2785 | unsigned char i, j, eeprom_size_mask; |
b8aa7b35 TJ |
2786 | unsigned short checksum, value; |
2787 | unsigned char manufacturer_size = 0, product_size = 0, serial_size = 0; | |
6e962b9a | 2788 | int user_area_size, free_start, free_end; |
c0a96aed | 2789 | struct ftdi_eeprom *eeprom; |
a35aa9bd | 2790 | unsigned char * output; |
b8aa7b35 | 2791 | |
c0a96aed | 2792 | if (ftdi == NULL) |
cc9c9d58 | 2793 | ftdi_error_return(-2,"No context"); |
c0a96aed | 2794 | if (ftdi->eeprom == NULL) |
cc9c9d58 | 2795 | ftdi_error_return(-2,"No eeprom structure"); |
c0a96aed UB |
2796 | |
2797 | eeprom= ftdi->eeprom; | |
a35aa9bd | 2798 | output = eeprom->buf; |
22a1b5c1 | 2799 | |
56ac0383 | 2800 | if (eeprom->chip == -1) |
2c1e2bde | 2801 | ftdi_error_return(-6,"No connected EEPROM or EEPROM type unknown"); |
2b9a3c82 | 2802 | |
74387f27 TJ |
2803 | if (eeprom->size == -1) |
2804 | { | |
2f80efc2 NP |
2805 | if ((eeprom->chip == 0x56) || (eeprom->chip == 0x66)) |
2806 | eeprom->size = 0x100; | |
2807 | else | |
2808 | eeprom->size = 0x80; | |
2809 | } | |
f75bf139 | 2810 | |
b8aa7b35 | 2811 | if (eeprom->manufacturer != NULL) |
d9f0cce7 | 2812 | manufacturer_size = strlen(eeprom->manufacturer); |
b8aa7b35 | 2813 | if (eeprom->product != NULL) |
d9f0cce7 | 2814 | product_size = strlen(eeprom->product); |
b8aa7b35 | 2815 | if (eeprom->serial != NULL) |
d9f0cce7 | 2816 | serial_size = strlen(eeprom->serial); |
b8aa7b35 | 2817 | |
814710ba TJ |
2818 | // eeprom size check |
2819 | switch (ftdi->type) | |
2820 | { | |
2821 | case TYPE_AM: | |
2822 | case TYPE_BM: | |
6e962b9a | 2823 | case TYPE_R: |
814710ba TJ |
2824 | user_area_size = 96; // base size for strings (total of 48 characters) |
2825 | break; | |
2826 | case TYPE_2232C: | |
56ac0383 TJ |
2827 | user_area_size = 90; // two extra config bytes and 4 bytes PnP stuff |
2828 | break; | |
2f80efc2 | 2829 | case TYPE_230X: |
56ac0383 TJ |
2830 | user_area_size = 88; // four extra config bytes + 4 bytes PnP stuff |
2831 | break; | |
814710ba TJ |
2832 | case TYPE_2232H: // six extra config bytes + 4 bytes PnP stuff |
2833 | case TYPE_4232H: | |
56ac0383 | 2834 | user_area_size = 86; |
118c4561 | 2835 | break; |
c1c3d564 UB |
2836 | case TYPE_232H: |
2837 | user_area_size = 80; | |
2838 | break; | |
2c1e2bde TJ |
2839 | default: |
2840 | user_area_size = 0; | |
56ac0383 | 2841 | break; |
665cda04 UB |
2842 | } |
2843 | user_area_size -= (manufacturer_size + product_size + serial_size) * 2; | |
814710ba | 2844 | |
516ebfb1 TJ |
2845 | if (user_area_size < 0) |
2846 | ftdi_error_return(-1,"eeprom size exceeded"); | |
b8aa7b35 TJ |
2847 | |
2848 | // empty eeprom | |
74387f27 TJ |
2849 | if (ftdi->type == TYPE_230X) |
2850 | { | |
2f80efc2 NP |
2851 | /* FT230X have a reserved section in the middle of the MTP, |
2852 | which cannot be written to, but must be included in the checksum */ | |
2853 | memset(ftdi->eeprom->buf, 0, 0x80); | |
2854 | memset((ftdi->eeprom->buf + 0xa0), 0, (FTDI_MAX_EEPROM_SIZE - 0xa0)); | |
74387f27 TJ |
2855 | } |
2856 | else | |
2857 | { | |
2f80efc2 NP |
2858 | memset(ftdi->eeprom->buf, 0, FTDI_MAX_EEPROM_SIZE); |
2859 | } | |
b8aa7b35 | 2860 | |
93738c79 UB |
2861 | // Bytes and Bits set for all Types |
2862 | ||
b8aa7b35 TJ |
2863 | // Addr 02: Vendor ID |
2864 | output[0x02] = eeprom->vendor_id; | |
2865 | output[0x03] = eeprom->vendor_id >> 8; | |
2866 | ||
2867 | // Addr 04: Product ID | |
2868 | output[0x04] = eeprom->product_id; | |
2869 | output[0x05] = eeprom->product_id >> 8; | |
2870 | ||
2871 | // Addr 06: Device release number (0400h for BM features) | |
68e78641 JS |
2872 | output[0x06] = eeprom->release_number; |
2873 | output[0x07] = eeprom->release_number >> 8; | |
b8aa7b35 TJ |
2874 | |
2875 | // Addr 08: Config descriptor | |
8fae3e8e TJ |
2876 | // Bit 7: always 1 |
2877 | // Bit 6: 1 if this device is self powered, 0 if bus powered | |
2878 | // Bit 5: 1 if this device uses remote wakeup | |
37186e34 | 2879 | // Bit 4-0: reserved - 0 |
5a1dcd55 | 2880 | j = 0x80; |
afb90824 | 2881 | if (eeprom->self_powered) |
5a1dcd55 | 2882 | j |= 0x40; |
afb90824 | 2883 | if (eeprom->remote_wakeup) |
5a1dcd55 | 2884 | j |= 0x20; |
b8aa7b35 TJ |
2885 | output[0x08] = j; |
2886 | ||
2887 | // Addr 09: Max power consumption: max power = value * 2 mA | |
a7c32c59 | 2888 | output[0x09] = eeprom->max_power / MAX_POWER_MILLIAMP_PER_UNIT; |
d9f0cce7 | 2889 | |
2f80efc2 | 2890 | if ((ftdi->type != TYPE_AM) && (ftdi->type != TYPE_230X)) |
93738c79 UB |
2891 | { |
2892 | // Addr 0A: Chip configuration | |
2893 | // Bit 7: 0 - reserved | |
2894 | // Bit 6: 0 - reserved | |
2895 | // Bit 5: 0 - reserved | |
56ac0383 | 2896 | // Bit 4: 1 - Change USB version |
93738c79 UB |
2897 | // Bit 3: 1 - Use the serial number string |
2898 | // Bit 2: 1 - Enable suspend pull downs for lower power | |
2899 | // Bit 1: 1 - Out EndPoint is Isochronous | |
2900 | // Bit 0: 1 - In EndPoint is Isochronous | |
2901 | // | |
2902 | j = 0; | |
afb90824 | 2903 | if (eeprom->in_is_isochronous) |
93738c79 | 2904 | j = j | 1; |
afb90824 | 2905 | if (eeprom->out_is_isochronous) |
93738c79 UB |
2906 | j = j | 2; |
2907 | output[0x0A] = j; | |
2908 | } | |
f505134f | 2909 | |
b8aa7b35 | 2910 | // Dynamic content |
93738c79 UB |
2911 | // Strings start at 0x94 (TYPE_AM, TYPE_BM) |
2912 | // 0x96 (TYPE_2232C), 0x98 (TYPE_R) and 0x9a (TYPE_x232H) | |
c7e4c09e | 2913 | // 0xa0 (TYPE_232H) |
93738c79 | 2914 | i = 0; |
56ac0383 TJ |
2915 | switch (ftdi->type) |
2916 | { | |
2917 | case TYPE_2232H: | |
2918 | case TYPE_4232H: | |
2919 | i += 2; | |
2920 | case TYPE_R: | |
2921 | i += 2; | |
2922 | case TYPE_2232C: | |
2923 | i += 2; | |
2924 | case TYPE_AM: | |
2925 | case TYPE_BM: | |
2926 | i += 0x94; | |
2f80efc2 | 2927 | break; |
fa3032f0 | 2928 | case TYPE_232H: |
2f80efc2 NP |
2929 | case TYPE_230X: |
2930 | i = 0xa0; | |
2931 | break; | |
f505134f | 2932 | } |
93738c79 | 2933 | /* Wrap around 0x80 for 128 byte EEPROMS (Internale and 93x46) */ |
e2bbd9af | 2934 | eeprom_size_mask = eeprom->size -1; |
6e962b9a | 2935 | free_end = i & eeprom_size_mask; |
c201f80f | 2936 | |
93738c79 UB |
2937 | // Addr 0E: Offset of the manufacturer string + 0x80, calculated later |
2938 | // Addr 0F: Length of manufacturer string | |
22d12cda | 2939 | // Output manufacturer |
93738c79 | 2940 | output[0x0E] = i; // calculate offset |
e2bbd9af TJ |
2941 | output[i & eeprom_size_mask] = manufacturer_size*2 + 2, i++; |
2942 | output[i & eeprom_size_mask] = 0x03, i++; // type: string | |
22d12cda TJ |
2943 | for (j = 0; j < manufacturer_size; j++) |
2944 | { | |
e2bbd9af TJ |
2945 | output[i & eeprom_size_mask] = eeprom->manufacturer[j], i++; |
2946 | output[i & eeprom_size_mask] = 0x00, i++; | |
b8aa7b35 | 2947 | } |
93738c79 | 2948 | output[0x0F] = manufacturer_size*2 + 2; |
b8aa7b35 | 2949 | |
93738c79 UB |
2950 | // Addr 10: Offset of the product string + 0x80, calculated later |
2951 | // Addr 11: Length of product string | |
c201f80f | 2952 | output[0x10] = i | 0x80; // calculate offset |
e2bbd9af TJ |
2953 | output[i & eeprom_size_mask] = product_size*2 + 2, i++; |
2954 | output[i & eeprom_size_mask] = 0x03, i++; | |
22d12cda TJ |
2955 | for (j = 0; j < product_size; j++) |
2956 | { | |
e2bbd9af TJ |
2957 | output[i & eeprom_size_mask] = eeprom->product[j], i++; |
2958 | output[i & eeprom_size_mask] = 0x00, i++; | |
b8aa7b35 | 2959 | } |
93738c79 | 2960 | output[0x11] = product_size*2 + 2; |
37186e34 | 2961 | |
93738c79 UB |
2962 | // Addr 12: Offset of the serial string + 0x80, calculated later |
2963 | // Addr 13: Length of serial string | |
c201f80f | 2964 | output[0x12] = i | 0x80; // calculate offset |
e2bbd9af TJ |
2965 | output[i & eeprom_size_mask] = serial_size*2 + 2, i++; |
2966 | output[i & eeprom_size_mask] = 0x03, i++; | |
22d12cda TJ |
2967 | for (j = 0; j < serial_size; j++) |
2968 | { | |
e2bbd9af TJ |
2969 | output[i & eeprom_size_mask] = eeprom->serial[j], i++; |
2970 | output[i & eeprom_size_mask] = 0x00, i++; | |
b8aa7b35 | 2971 | } |
c2700d6d TJ |
2972 | |
2973 | // Legacy port name and PnP fields for FT2232 and newer chips | |
2974 | if (ftdi->type > TYPE_BM) | |
2975 | { | |
2976 | output[i & eeprom_size_mask] = 0x02; /* as seen when written with FTD2XX */ | |
2977 | i++; | |
2978 | output[i & eeprom_size_mask] = 0x03; /* as seen when written with FTD2XX */ | |
2979 | i++; | |
2980 | output[i & eeprom_size_mask] = eeprom->is_not_pnp; /* as seen when written with FTD2XX */ | |
2981 | i++; | |
2982 | } | |
802a949e | 2983 | |
93738c79 | 2984 | output[0x13] = serial_size*2 + 2; |
b8aa7b35 | 2985 | |
56ac0383 | 2986 | if (ftdi->type > TYPE_AM) /* use_serial not used in AM devices */ |
bf2f6ef7 | 2987 | { |
d4b5af27 | 2988 | if (eeprom->use_serial) |
bf2f6ef7 UB |
2989 | output[0x0A] |= USE_SERIAL_NUM; |
2990 | else | |
2991 | output[0x0A] &= ~USE_SERIAL_NUM; | |
2992 | } | |
3802140c UB |
2993 | |
2994 | /* Bytes and Bits specific to (some) types | |
2995 | Write linear, as this allows easier fixing*/ | |
56ac0383 TJ |
2996 | switch (ftdi->type) |
2997 | { | |
2998 | case TYPE_AM: | |
2999 | break; | |
3000 | case TYPE_BM: | |
3001 | output[0x0C] = eeprom->usb_version & 0xff; | |
3002 | output[0x0D] = (eeprom->usb_version>>8) & 0xff; | |
3986243d | 3003 | if (eeprom->use_usb_version) |
56ac0383 TJ |
3004 | output[0x0A] |= USE_USB_VERSION_BIT; |
3005 | else | |
3006 | output[0x0A] &= ~USE_USB_VERSION_BIT; | |
caec1294 | 3007 | |
56ac0383 TJ |
3008 | break; |
3009 | case TYPE_2232C: | |
3802140c | 3010 | |
c8f69686 | 3011 | output[0x00] = type2bit(eeprom->channel_a_type, TYPE_2232C); |
56ac0383 TJ |
3012 | if ( eeprom->channel_a_driver == DRIVER_VCP) |
3013 | output[0x00] |= DRIVER_VCP; | |
3014 | else | |
3015 | output[0x00] &= ~DRIVER_VCP; | |
4e74064b | 3016 | |
56ac0383 TJ |
3017 | if ( eeprom->high_current_a == HIGH_CURRENT_DRIVE) |
3018 | output[0x00] |= HIGH_CURRENT_DRIVE; | |
3019 | else | |
3020 | output[0x00] &= ~HIGH_CURRENT_DRIVE; | |
3802140c | 3021 | |
c8f69686 | 3022 | output[0x01] = type2bit(eeprom->channel_b_type, TYPE_2232C); |
56ac0383 TJ |
3023 | if ( eeprom->channel_b_driver == DRIVER_VCP) |
3024 | output[0x01] |= DRIVER_VCP; | |
3025 | else | |
3026 | output[0x01] &= ~DRIVER_VCP; | |
4e74064b | 3027 | |
56ac0383 TJ |
3028 | if ( eeprom->high_current_b == HIGH_CURRENT_DRIVE) |
3029 | output[0x01] |= HIGH_CURRENT_DRIVE; | |
3030 | else | |
3031 | output[0x01] &= ~HIGH_CURRENT_DRIVE; | |
3802140c | 3032 | |
afb90824 | 3033 | if (eeprom->in_is_isochronous) |
56ac0383 TJ |
3034 | output[0x0A] |= 0x1; |
3035 | else | |
3036 | output[0x0A] &= ~0x1; | |
afb90824 | 3037 | if (eeprom->out_is_isochronous) |
56ac0383 TJ |
3038 | output[0x0A] |= 0x2; |
3039 | else | |
3040 | output[0x0A] &= ~0x2; | |
afb90824 | 3041 | if (eeprom->suspend_pull_downs) |
56ac0383 TJ |
3042 | output[0x0A] |= 0x4; |
3043 | else | |
3044 | output[0x0A] &= ~0x4; | |
3986243d | 3045 | if (eeprom->use_usb_version) |
56ac0383 TJ |
3046 | output[0x0A] |= USE_USB_VERSION_BIT; |
3047 | else | |
3048 | output[0x0A] &= ~USE_USB_VERSION_BIT; | |
4e74064b | 3049 | |
56ac0383 TJ |
3050 | output[0x0C] = eeprom->usb_version & 0xff; |
3051 | output[0x0D] = (eeprom->usb_version>>8) & 0xff; | |
3052 | output[0x14] = eeprom->chip; | |
3053 | break; | |
3054 | case TYPE_R: | |
6f9f969d | 3055 | output[0x00] = type2bit(eeprom->channel_a_type, TYPE_R); |
56ac0383 TJ |
3056 | if (eeprom->high_current == HIGH_CURRENT_DRIVE_R) |
3057 | output[0x00] |= HIGH_CURRENT_DRIVE_R; | |
08518f8e RA |
3058 | if (eeprom->external_oscillator) |
3059 | output[0x00] |= 0x02; | |
56ac0383 | 3060 | output[0x01] = 0x40; /* Hard coded Endpoint Size*/ |
4e74064b | 3061 | |
afb90824 | 3062 | if (eeprom->suspend_pull_downs) |
56ac0383 TJ |
3063 | output[0x0A] |= 0x4; |
3064 | else | |
3065 | output[0x0A] &= ~0x4; | |
3066 | output[0x0B] = eeprom->invert; | |
3067 | output[0x0C] = eeprom->usb_version & 0xff; | |
3068 | output[0x0D] = (eeprom->usb_version>>8) & 0xff; | |
4e74064b | 3069 | |
add00ad6 | 3070 | if (eeprom->cbus_function[0] > CBUS_BB_RD) |
56ac0383 TJ |
3071 | output[0x14] = CBUS_TXLED; |
3072 | else | |
3073 | output[0x14] = eeprom->cbus_function[0]; | |
4e74064b | 3074 | |
add00ad6 | 3075 | if (eeprom->cbus_function[1] > CBUS_BB_RD) |
56ac0383 TJ |
3076 | output[0x14] |= CBUS_RXLED<<4; |
3077 | else | |
3078 | output[0x14] |= eeprom->cbus_function[1]<<4; | |
4e74064b | 3079 | |
add00ad6 | 3080 | if (eeprom->cbus_function[2] > CBUS_BB_RD) |
56ac0383 TJ |
3081 | output[0x15] = CBUS_TXDEN; |
3082 | else | |
3083 | output[0x15] = eeprom->cbus_function[2]; | |
4e74064b | 3084 | |
add00ad6 | 3085 | if (eeprom->cbus_function[3] > CBUS_BB_RD) |
56ac0383 TJ |
3086 | output[0x15] |= CBUS_PWREN<<4; |
3087 | else | |
3088 | output[0x15] |= eeprom->cbus_function[3]<<4; | |
4e74064b | 3089 | |
56ac0383 TJ |
3090 | if (eeprom->cbus_function[4] > CBUS_CLK6) |
3091 | output[0x16] = CBUS_SLEEP; | |
3092 | else | |
3093 | output[0x16] = eeprom->cbus_function[4]; | |
3094 | break; | |
3095 | case TYPE_2232H: | |
c8f69686 | 3096 | output[0x00] = type2bit(eeprom->channel_a_type, TYPE_2232H); |
56ac0383 TJ |
3097 | if ( eeprom->channel_a_driver == DRIVER_VCP) |
3098 | output[0x00] |= DRIVER_VCP; | |
3099 | else | |
3100 | output[0x00] &= ~DRIVER_VCP; | |
6e6a1c3f | 3101 | |
c8f69686 | 3102 | output[0x01] = type2bit(eeprom->channel_b_type, TYPE_2232H); |
56ac0383 TJ |
3103 | if ( eeprom->channel_b_driver == DRIVER_VCP) |
3104 | output[0x01] |= DRIVER_VCP; | |
3105 | else | |
3106 | output[0x01] &= ~DRIVER_VCP; | |
3107 | if (eeprom->suspend_dbus7 == SUSPEND_DBUS7_BIT) | |
3108 | output[0x01] |= SUSPEND_DBUS7_BIT; | |
3109 | else | |
3110 | output[0x01] &= ~SUSPEND_DBUS7_BIT; | |
3111 | ||
afb90824 | 3112 | if (eeprom->suspend_pull_downs) |
56ac0383 TJ |
3113 | output[0x0A] |= 0x4; |
3114 | else | |
3115 | output[0x0A] &= ~0x4; | |
3116 | ||
3117 | if (eeprom->group0_drive > DRIVE_16MA) | |
3118 | output[0x0c] |= DRIVE_16MA; | |
3119 | else | |
3120 | output[0x0c] |= eeprom->group0_drive; | |
3121 | if (eeprom->group0_schmitt == IS_SCHMITT) | |
3122 | output[0x0c] |= IS_SCHMITT; | |
3123 | if (eeprom->group0_slew == SLOW_SLEW) | |
3124 | output[0x0c] |= SLOW_SLEW; | |
3125 | ||
3126 | if (eeprom->group1_drive > DRIVE_16MA) | |
3127 | output[0x0c] |= DRIVE_16MA<<4; | |
3128 | else | |
3129 | output[0x0c] |= eeprom->group1_drive<<4; | |
3130 | if (eeprom->group1_schmitt == IS_SCHMITT) | |
3131 | output[0x0c] |= IS_SCHMITT<<4; | |
3132 | if (eeprom->group1_slew == SLOW_SLEW) | |
3133 | output[0x0c] |= SLOW_SLEW<<4; | |
3134 | ||
3135 | if (eeprom->group2_drive > DRIVE_16MA) | |
3136 | output[0x0d] |= DRIVE_16MA; | |
3137 | else | |
3138 | output[0x0d] |= eeprom->group2_drive; | |
3139 | if (eeprom->group2_schmitt == IS_SCHMITT) | |
3140 | output[0x0d] |= IS_SCHMITT; | |
3141 | if (eeprom->group2_slew == SLOW_SLEW) | |
3142 | output[0x0d] |= SLOW_SLEW; | |
3143 | ||
3144 | if (eeprom->group3_drive > DRIVE_16MA) | |
3145 | output[0x0d] |= DRIVE_16MA<<4; | |
3146 | else | |
3147 | output[0x0d] |= eeprom->group3_drive<<4; | |
3148 | if (eeprom->group3_schmitt == IS_SCHMITT) | |
3149 | output[0x0d] |= IS_SCHMITT<<4; | |
3150 | if (eeprom->group3_slew == SLOW_SLEW) | |
3151 | output[0x0d] |= SLOW_SLEW<<4; | |
3802140c | 3152 | |
56ac0383 | 3153 | output[0x18] = eeprom->chip; |
3802140c | 3154 | |
56ac0383 TJ |
3155 | break; |
3156 | case TYPE_4232H: | |
be4bae37 AL |
3157 | if (eeprom->channel_a_driver == DRIVER_VCP) |
3158 | output[0x00] |= DRIVER_VCP; | |
3159 | else | |
3160 | output[0x00] &= ~DRIVER_VCP; | |
3161 | if (eeprom->channel_b_driver == DRIVER_VCP) | |
3162 | output[0x01] |= DRIVER_VCP; | |
3163 | else | |
3164 | output[0x01] &= ~DRIVER_VCP; | |
3165 | if (eeprom->channel_c_driver == DRIVER_VCP) | |
3166 | output[0x00] |= (DRIVER_VCP << 4); | |
3167 | else | |
3168 | output[0x00] &= ~(DRIVER_VCP << 4); | |
3169 | if (eeprom->channel_d_driver == DRIVER_VCP) | |
3170 | output[0x01] |= (DRIVER_VCP << 4); | |
3171 | else | |
3172 | output[0x01] &= ~(DRIVER_VCP << 4); | |
3173 | ||
afb90824 | 3174 | if (eeprom->suspend_pull_downs) |
be4bae37 AL |
3175 | output[0x0a] |= 0x4; |
3176 | else | |
3177 | output[0x0a] &= ~0x4; | |
3178 | ||
3179 | if (eeprom->channel_a_rs485enable) | |
3180 | output[0x0b] |= CHANNEL_IS_RS485 << 0; | |
3181 | else | |
3182 | output[0x0b] &= ~(CHANNEL_IS_RS485 << 0); | |
3183 | if (eeprom->channel_b_rs485enable) | |
3184 | output[0x0b] |= CHANNEL_IS_RS485 << 1; | |
3185 | else | |
3186 | output[0x0b] &= ~(CHANNEL_IS_RS485 << 1); | |
3187 | if (eeprom->channel_c_rs485enable) | |
3188 | output[0x0b] |= CHANNEL_IS_RS485 << 2; | |
3189 | else | |
3190 | output[0x0b] &= ~(CHANNEL_IS_RS485 << 2); | |
3191 | if (eeprom->channel_d_rs485enable) | |
3192 | output[0x0b] |= CHANNEL_IS_RS485 << 3; | |
3193 | else | |
3194 | output[0x0b] &= ~(CHANNEL_IS_RS485 << 3); | |
3195 | ||
3196 | if (eeprom->group0_drive > DRIVE_16MA) | |
3197 | output[0x0c] |= DRIVE_16MA; | |
3198 | else | |
3199 | output[0x0c] |= eeprom->group0_drive; | |
3200 | if (eeprom->group0_schmitt == IS_SCHMITT) | |
3201 | output[0x0c] |= IS_SCHMITT; | |
3202 | if (eeprom->group0_slew == SLOW_SLEW) | |
3203 | output[0x0c] |= SLOW_SLEW; | |
3204 | ||
3205 | if (eeprom->group1_drive > DRIVE_16MA) | |
3206 | output[0x0c] |= DRIVE_16MA<<4; | |
3207 | else | |
3208 | output[0x0c] |= eeprom->group1_drive<<4; | |
3209 | if (eeprom->group1_schmitt == IS_SCHMITT) | |
3210 | output[0x0c] |= IS_SCHMITT<<4; | |
3211 | if (eeprom->group1_slew == SLOW_SLEW) | |
3212 | output[0x0c] |= SLOW_SLEW<<4; | |
3213 | ||
3214 | if (eeprom->group2_drive > DRIVE_16MA) | |
3215 | output[0x0d] |= DRIVE_16MA; | |
3216 | else | |
3217 | output[0x0d] |= eeprom->group2_drive; | |
3218 | if (eeprom->group2_schmitt == IS_SCHMITT) | |
3219 | output[0x0d] |= IS_SCHMITT; | |
3220 | if (eeprom->group2_slew == SLOW_SLEW) | |
3221 | output[0x0d] |= SLOW_SLEW; | |
3222 | ||
3223 | if (eeprom->group3_drive > DRIVE_16MA) | |
3224 | output[0x0d] |= DRIVE_16MA<<4; | |
3225 | else | |
3226 | output[0x0d] |= eeprom->group3_drive<<4; | |
3227 | if (eeprom->group3_schmitt == IS_SCHMITT) | |
3228 | output[0x0d] |= IS_SCHMITT<<4; | |
3229 | if (eeprom->group3_slew == SLOW_SLEW) | |
3230 | output[0x0d] |= SLOW_SLEW<<4; | |
3231 | ||
c7e4c09e | 3232 | output[0x18] = eeprom->chip; |
be4bae37 | 3233 | |
c7e4c09e UB |
3234 | break; |
3235 | case TYPE_232H: | |
c8f69686 | 3236 | output[0x00] = type2bit(eeprom->channel_a_type, TYPE_232H); |
ac4a82a5 UB |
3237 | if ( eeprom->channel_a_driver == DRIVER_VCP) |
3238 | output[0x00] |= DRIVER_VCPH; | |
3239 | else | |
3240 | output[0x00] &= ~DRIVER_VCPH; | |
837a71d6 UB |
3241 | if (eeprom->powersave) |
3242 | output[0x01] |= POWER_SAVE_DISABLE_H; | |
3243 | else | |
3244 | output[0x01] &= ~POWER_SAVE_DISABLE_H; | |
a7e05353 DM |
3245 | |
3246 | if (eeprom->suspend_pull_downs) | |
3247 | output[0x0a] |= 0x4; | |
3248 | else | |
3249 | output[0x0a] &= ~0x4; | |
3250 | ||
18199b76 UB |
3251 | if (eeprom->clock_polarity) |
3252 | output[0x01] |= FT1284_CLK_IDLE_STATE; | |
3253 | else | |
3254 | output[0x01] &= ~FT1284_CLK_IDLE_STATE; | |
3255 | if (eeprom->data_order) | |
3256 | output[0x01] |= FT1284_DATA_LSB; | |
3257 | else | |
3258 | output[0x01] &= ~FT1284_DATA_LSB; | |
3259 | if (eeprom->flow_control) | |
3260 | output[0x01] |= FT1284_FLOW_CONTROL; | |
3261 | else | |
3262 | output[0x01] &= ~FT1284_FLOW_CONTROL; | |
91d7a201 UB |
3263 | if (eeprom->group0_drive > DRIVE_16MA) |
3264 | output[0x0c] |= DRIVE_16MA; | |
3265 | else | |
3266 | output[0x0c] |= eeprom->group0_drive; | |
3267 | if (eeprom->group0_schmitt == IS_SCHMITT) | |
3268 | output[0x0c] |= IS_SCHMITT; | |
3269 | if (eeprom->group0_slew == SLOW_SLEW) | |
3270 | output[0x0c] |= SLOW_SLEW; | |
3271 | ||
3272 | if (eeprom->group1_drive > DRIVE_16MA) | |
3273 | output[0x0d] |= DRIVE_16MA; | |
3274 | else | |
3275 | output[0x0d] |= eeprom->group1_drive; | |
3276 | if (eeprom->group1_schmitt == IS_SCHMITT) | |
3277 | output[0x0d] |= IS_SCHMITT; | |
3278 | if (eeprom->group1_slew == SLOW_SLEW) | |
3279 | output[0x0d] |= SLOW_SLEW; | |
3280 | ||
263d3ba0 UB |
3281 | set_ft232h_cbus(eeprom, output); |
3282 | ||
c7e4c09e UB |
3283 | output[0x1e] = eeprom->chip; |
3284 | fprintf(stderr,"FIXME: Build FT232H specific EEPROM settings\n"); | |
3285 | break; | |
2f80efc2 NP |
3286 | case TYPE_230X: |
3287 | output[0x00] = 0x80; /* Actually, leave the default value */ | |
e659737a UB |
3288 | /*FIXME: Make DBUS & CBUS Control configurable*/ |
3289 | output[0x0c] = 0; /* DBUS drive 4mA, CBUS drive 4 mA like factory default */ | |
74387f27 TJ |
3290 | for (j = 0; j <= 6; j++) |
3291 | { | |
2f80efc2 NP |
3292 | output[0x1a + j] = eeprom->cbus_function[j]; |
3293 | } | |
347d87e5 | 3294 | output[0x0b] = eeprom->invert; |
2f80efc2 | 3295 | break; |
3802140c UB |
3296 | } |
3297 | ||
6e962b9a SET |
3298 | /* First address without use */ |
3299 | free_start = 0; | |
3300 | switch (ftdi->type) | |
3301 | { | |
3302 | case TYPE_230X: | |
3303 | free_start += 2; | |
3304 | case TYPE_232H: | |
3305 | free_start += 6; | |
3306 | case TYPE_2232H: | |
3307 | case TYPE_4232H: | |
3308 | free_start += 2; | |
3309 | case TYPE_R: | |
3310 | free_start += 2; | |
3311 | case TYPE_2232C: | |
3312 | free_start++; | |
3313 | case TYPE_AM: | |
3314 | case TYPE_BM: | |
3315 | free_start += 0x14; | |
3316 | } | |
3317 | ||
3318 | /* Arbitrary user data */ | |
3319 | if (eeprom->user_data && eeprom->user_data_size >= 0) | |
3320 | { | |
3321 | if (eeprom->user_data_addr < free_start) | |
3322 | fprintf(stderr,"Warning, user data starts inside the generated data!\n"); | |
3323 | if (eeprom->user_data_addr + eeprom->user_data_size >= free_end) | |
3324 | fprintf(stderr,"Warning, user data overlaps the strings area!\n"); | |
3325 | if (eeprom->user_data_addr + eeprom->user_data_size > eeprom->size) | |
3326 | ftdi_error_return(-1,"eeprom size exceeded"); | |
3327 | memcpy(output + eeprom->user_data_addr, eeprom->user_data, eeprom->user_data_size); | |
3328 | } | |
3329 | ||
cbf65673 | 3330 | // calculate checksum |
b8aa7b35 | 3331 | checksum = 0xAAAA; |
d9f0cce7 | 3332 | |
22d12cda TJ |
3333 | for (i = 0; i < eeprom->size/2-1; i++) |
3334 | { | |
74387f27 TJ |
3335 | if ((ftdi->type == TYPE_230X) && (i == 0x12)) |
3336 | { | |
2f80efc2 NP |
3337 | /* FT230X has a user section in the MTP which is not part of the checksum */ |
3338 | i = 0x40; | |
3339 | } | |
519bbce1 UB |
3340 | if ((ftdi->type == TYPE_230X) && (i >= 0x40) && (i < 0x50)) { |
3341 | uint16_t data; | |
3342 | if (ftdi_read_eeprom_location(ftdi, i, &data)) { | |
3343 | fprintf(stderr, "Reading Factory Configuration Data failed\n"); | |
3344 | i = 0x50; | |
3345 | } | |
3346 | value = data; | |
3347 | } | |
3348 | else { | |
3349 | value = output[i*2]; | |
3350 | value += output[(i*2)+1] << 8; | |
3351 | } | |
d9f0cce7 TJ |
3352 | checksum = value^checksum; |
3353 | checksum = (checksum << 1) | (checksum >> 15); | |
b8aa7b35 TJ |
3354 | } |
3355 | ||
c201f80f TJ |
3356 | output[eeprom->size-2] = checksum; |
3357 | output[eeprom->size-1] = checksum >> 8; | |
b8aa7b35 | 3358 | |
68e78641 | 3359 | eeprom->initialized_for_connected_device = 1; |
516ebfb1 | 3360 | return user_area_size; |
b8aa7b35 | 3361 | } |
74387f27 | 3362 | /* Decode the encoded EEPROM field for the FTDI Mode into a value for the abstracted |
c8f69686 UB |
3363 | * EEPROM structure |
3364 | * | |
3365 | * FTD2XX doesn't allow to set multiple bits in the interface mode bitfield, and so do we | |
3366 | */ | |
3367 | static unsigned char bit2type(unsigned char bits) | |
0fc2170c UB |
3368 | { |
3369 | switch (bits) | |
3370 | { | |
74387f27 TJ |
3371 | case 0: return CHANNEL_IS_UART; |
3372 | case 1: return CHANNEL_IS_FIFO; | |
3373 | case 2: return CHANNEL_IS_OPTO; | |
3374 | case 4: return CHANNEL_IS_CPU; | |
3375 | case 8: return CHANNEL_IS_FT1284; | |
3376 | default: | |
3377 | fprintf(stderr," Unexpected value %d for Hardware Interface type\n", | |
3378 | bits); | |
0fc2170c UB |
3379 | } |
3380 | return 0; | |
3381 | } | |
1ad9e4cc TJ |
3382 | /* Decode 230X / 232R type chips invert bits |
3383 | * Prints directly to stdout. | |
3384 | */ | |
3385 | static void print_inverted_bits(int invert) | |
3386 | { | |
c45d2630 | 3387 | const char *r_bits[] = {"TXD","RXD","RTS","CTS","DTR","DSR","DCD","RI"}; |
1ad9e4cc TJ |
3388 | int i; |
3389 | ||
3390 | fprintf(stdout,"Inverted bits:"); | |
3391 | for (i=0; i<8; i++) | |
3392 | if ((invert & (1<<i)) == (1<<i)) | |
3393 | fprintf(stdout," %s",r_bits[i]); | |
3394 | ||
3395 | fprintf(stdout,"\n"); | |
3396 | } | |
4af1d1bb MK |
3397 | /** |
3398 | Decode binary EEPROM image into an ftdi_eeprom structure. | |
3399 | ||
e659737a UB |
3400 | For FT-X devices use AN_201 FT-X MTP memory Configuration to decode. |
3401 | ||
a35aa9bd UB |
3402 | \param ftdi pointer to ftdi_context |
3403 | \param verbose Decode EEPROM on stdout | |
56ac0383 | 3404 | |
4af1d1bb MK |
3405 | \retval 0: all fine |
3406 | \retval -1: something went wrong | |
3407 | ||
3408 | FIXME: How to pass size? How to handle size field in ftdi_eeprom? | |
3409 | FIXME: Strings are malloc'ed here and should be freed somewhere | |
3410 | */ | |
a35aa9bd | 3411 | int ftdi_eeprom_decode(struct ftdi_context *ftdi, int verbose) |
b56d5a64 | 3412 | { |
3fca5ea9 | 3413 | int i, j; |
b56d5a64 MK |
3414 | unsigned short checksum, eeprom_checksum, value; |
3415 | unsigned char manufacturer_size = 0, product_size = 0, serial_size = 0; | |
f2cd9fd5 | 3416 | int eeprom_size; |
c0a96aed | 3417 | struct ftdi_eeprom *eeprom; |
3bc0387e | 3418 | unsigned char *buf = NULL; |
22a1b5c1 | 3419 | |
c0a96aed | 3420 | if (ftdi == NULL) |
cc9c9d58 | 3421 | ftdi_error_return(-1,"No context"); |
c0a96aed | 3422 | if (ftdi->eeprom == NULL) |
6cd4f922 | 3423 | ftdi_error_return(-1,"No eeprom structure"); |
56ac0383 | 3424 | |
c0a96aed | 3425 | eeprom = ftdi->eeprom; |
a35aa9bd | 3426 | eeprom_size = eeprom->size; |
3bc0387e | 3427 | buf = ftdi->eeprom->buf; |
b56d5a64 | 3428 | |
b56d5a64 MK |
3429 | // Addr 02: Vendor ID |
3430 | eeprom->vendor_id = buf[0x02] + (buf[0x03] << 8); | |
3431 | ||
3432 | // Addr 04: Product ID | |
3433 | eeprom->product_id = buf[0x04] + (buf[0x05] << 8); | |
22d12cda | 3434 | |
68e78641 JS |
3435 | // Addr 06: Device release number |
3436 | eeprom->release_number = buf[0x06] + (buf[0x07]<<8); | |
b56d5a64 MK |
3437 | |
3438 | // Addr 08: Config descriptor | |
3439 | // Bit 7: always 1 | |
3440 | // Bit 6: 1 if this device is self powered, 0 if bus powered | |
3441 | // Bit 5: 1 if this device uses remote wakeup | |
f6ef2983 | 3442 | eeprom->self_powered = buf[0x08] & 0x40; |
814710ba | 3443 | eeprom->remote_wakeup = buf[0x08] & 0x20; |
b56d5a64 MK |
3444 | |
3445 | // Addr 09: Max power consumption: max power = value * 2 mA | |
a7c32c59 | 3446 | eeprom->max_power = MAX_POWER_MILLIAMP_PER_UNIT * buf[0x09]; |
b56d5a64 MK |
3447 | |
3448 | // Addr 0A: Chip configuration | |
3449 | // Bit 7: 0 - reserved | |
3450 | // Bit 6: 0 - reserved | |
3451 | // Bit 5: 0 - reserved | |
caec1294 | 3452 | // Bit 4: 1 - Change USB version on BM and 2232C |
b56d5a64 MK |
3453 | // Bit 3: 1 - Use the serial number string |
3454 | // Bit 2: 1 - Enable suspend pull downs for lower power | |
3455 | // Bit 1: 1 - Out EndPoint is Isochronous | |
3456 | // Bit 0: 1 - In EndPoint is Isochronous | |
3457 | // | |
8d3fe5c9 UB |
3458 | eeprom->in_is_isochronous = buf[0x0A]&0x01; |
3459 | eeprom->out_is_isochronous = buf[0x0A]&0x02; | |
3460 | eeprom->suspend_pull_downs = buf[0x0A]&0x04; | |
3986243d TS |
3461 | eeprom->use_serial = !!(buf[0x0A] & USE_SERIAL_NUM); |
3462 | eeprom->use_usb_version = !!(buf[0x0A] & USE_USB_VERSION_BIT); | |
b56d5a64 | 3463 | |
b1859923 | 3464 | // Addr 0C: USB version low byte when 0x0A |
56ac0383 | 3465 | // Addr 0D: USB version high byte when 0x0A |
b1859923 | 3466 | eeprom->usb_version = buf[0x0C] + (buf[0x0D] << 8); |
b56d5a64 MK |
3467 | |
3468 | // Addr 0E: Offset of the manufacturer string + 0x80, calculated later | |
3469 | // Addr 0F: Length of manufacturer string | |
3470 | manufacturer_size = buf[0x0F]/2; | |
56ac0383 | 3471 | if (eeprom->manufacturer) |
74e8e79d | 3472 | free(eeprom->manufacturer); |
56ac0383 | 3473 | if (manufacturer_size > 0) |
acc1fa05 | 3474 | { |
c45d2630 | 3475 | eeprom->manufacturer = (char *)malloc(manufacturer_size); |
acc1fa05 UB |
3476 | if (eeprom->manufacturer) |
3477 | { | |
3478 | // Decode manufacturer | |
84ec032f | 3479 | i = buf[0x0E] & (eeprom_size -1); // offset |
74387f27 | 3480 | for (j=0; j<manufacturer_size-1; j++) |
acc1fa05 UB |
3481 | { |
3482 | eeprom->manufacturer[j] = buf[2*j+i+2]; | |
3483 | } | |
3484 | eeprom->manufacturer[j] = '\0'; | |
3485 | } | |
3486 | } | |
b56d5a64 MK |
3487 | else eeprom->manufacturer = NULL; |
3488 | ||
3489 | // Addr 10: Offset of the product string + 0x80, calculated later | |
3490 | // Addr 11: Length of product string | |
56ac0383 | 3491 | if (eeprom->product) |
74e8e79d | 3492 | free(eeprom->product); |
b56d5a64 | 3493 | product_size = buf[0x11]/2; |
acc1fa05 UB |
3494 | if (product_size > 0) |
3495 | { | |
c45d2630 | 3496 | eeprom->product = (char *)malloc(product_size); |
56ac0383 | 3497 | if (eeprom->product) |
acc1fa05 UB |
3498 | { |
3499 | // Decode product name | |
84ec032f | 3500 | i = buf[0x10] & (eeprom_size -1); // offset |
74387f27 | 3501 | for (j=0; j<product_size-1; j++) |
acc1fa05 UB |
3502 | { |
3503 | eeprom->product[j] = buf[2*j+i+2]; | |
3504 | } | |
3505 | eeprom->product[j] = '\0'; | |
3506 | } | |
3507 | } | |
b56d5a64 MK |
3508 | else eeprom->product = NULL; |
3509 | ||
3510 | // Addr 12: Offset of the serial string + 0x80, calculated later | |
3511 | // Addr 13: Length of serial string | |
56ac0383 | 3512 | if (eeprom->serial) |
74e8e79d | 3513 | free(eeprom->serial); |
b56d5a64 | 3514 | serial_size = buf[0x13]/2; |
acc1fa05 UB |
3515 | if (serial_size > 0) |
3516 | { | |
c45d2630 | 3517 | eeprom->serial = (char *)malloc(serial_size); |
56ac0383 | 3518 | if (eeprom->serial) |
acc1fa05 UB |
3519 | { |
3520 | // Decode serial | |
84ec032f | 3521 | i = buf[0x12] & (eeprom_size -1); // offset |
74387f27 | 3522 | for (j=0; j<serial_size-1; j++) |
acc1fa05 UB |
3523 | { |
3524 | eeprom->serial[j] = buf[2*j+i+2]; | |
3525 | } | |
3526 | eeprom->serial[j] = '\0'; | |
3527 | } | |
3528 | } | |
b56d5a64 MK |
3529 | else eeprom->serial = NULL; |
3530 | ||
b56d5a64 MK |
3531 | // verify checksum |
3532 | checksum = 0xAAAA; | |
3533 | ||
22d12cda TJ |
3534 | for (i = 0; i < eeprom_size/2-1; i++) |
3535 | { | |
74387f27 TJ |
3536 | if ((ftdi->type == TYPE_230X) && (i == 0x12)) |
3537 | { | |
2f80efc2 NP |
3538 | /* FT230X has a user section in the MTP which is not part of the checksum */ |
3539 | i = 0x40; | |
3540 | } | |
b56d5a64 MK |
3541 | value = buf[i*2]; |
3542 | value += buf[(i*2)+1] << 8; | |
3543 | ||
3544 | checksum = value^checksum; | |
3545 | checksum = (checksum << 1) | (checksum >> 15); | |
3546 | } | |
3547 | ||
3548 | eeprom_checksum = buf[eeprom_size-2] + (buf[eeprom_size-1] << 8); | |
3549 | ||
22d12cda TJ |
3550 | if (eeprom_checksum != checksum) |
3551 | { | |
3552 | fprintf(stderr, "Checksum Error: %04x %04x\n", checksum, eeprom_checksum); | |
cc9c9d58 | 3553 | ftdi_error_return(-1,"EEPROM checksum error"); |
4af1d1bb MK |
3554 | } |
3555 | ||
eb498cff | 3556 | eeprom->channel_a_type = 0; |
aa099f46 | 3557 | if ((ftdi->type == TYPE_AM) || (ftdi->type == TYPE_BM)) |
f6ef2983 | 3558 | { |
6cd4f922 | 3559 | eeprom->chip = -1; |
f6ef2983 | 3560 | } |
56ac0383 | 3561 | else if (ftdi->type == TYPE_2232C) |
f6ef2983 | 3562 | { |
0fc2170c | 3563 | eeprom->channel_a_type = bit2type(buf[0x00] & 0x7); |
2cde7c52 UB |
3564 | eeprom->channel_a_driver = buf[0x00] & DRIVER_VCP; |
3565 | eeprom->high_current_a = buf[0x00] & HIGH_CURRENT_DRIVE; | |
3566 | eeprom->channel_b_type = buf[0x01] & 0x7; | |
3567 | eeprom->channel_b_driver = buf[0x01] & DRIVER_VCP; | |
3568 | eeprom->high_current_b = buf[0x01] & HIGH_CURRENT_DRIVE; | |
6cd4f922 | 3569 | eeprom->chip = buf[0x14]; |
065edc58 | 3570 | } |
56ac0383 | 3571 | else if (ftdi->type == TYPE_R) |
564b2716 | 3572 | { |
2cde7c52 | 3573 | /* TYPE_R flags D2XX, not VCP as all others*/ |
be4bae37 | 3574 | eeprom->channel_a_driver = ~buf[0x00] & DRIVER_VCP; |
2cde7c52 | 3575 | eeprom->high_current = buf[0x00] & HIGH_CURRENT_DRIVE_R; |
08518f8e | 3576 | eeprom->external_oscillator = buf[0x00] & 0x02; |
56ac0383 TJ |
3577 | if ( (buf[0x01]&0x40) != 0x40) |
3578 | fprintf(stderr, | |
3579 | "TYPE_R EEPROM byte[0x01] Bit 6 unexpected Endpoint size." | |
3580 | " If this happened with the\n" | |
3581 | " EEPROM programmed by FTDI tools, please report " | |
3582 | "to libftdi@developer.intra2net.com\n"); | |
2cde7c52 | 3583 | |
6cd4f922 | 3584 | eeprom->chip = buf[0x16]; |
cecb9cb2 UB |
3585 | // Addr 0B: Invert data lines |
3586 | // Works only on FT232R, not FT245R, but no way to distinguish | |
07851949 UB |
3587 | eeprom->invert = buf[0x0B]; |
3588 | // Addr 14: CBUS function: CBUS0, CBUS1 | |
3589 | // Addr 15: CBUS function: CBUS2, CBUS3 | |
3590 | // Addr 16: CBUS function: CBUS5 | |
3591 | eeprom->cbus_function[0] = buf[0x14] & 0x0f; | |
3592 | eeprom->cbus_function[1] = (buf[0x14] >> 4) & 0x0f; | |
3593 | eeprom->cbus_function[2] = buf[0x15] & 0x0f; | |
3594 | eeprom->cbus_function[3] = (buf[0x15] >> 4) & 0x0f; | |
3595 | eeprom->cbus_function[4] = buf[0x16] & 0x0f; | |
564b2716 | 3596 | } |
be4bae37 | 3597 | else if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H)) |
db099ec5 | 3598 | { |
2cde7c52 | 3599 | eeprom->channel_a_driver = buf[0x00] & DRIVER_VCP; |
2cde7c52 UB |
3600 | eeprom->channel_b_driver = buf[0x01] & DRIVER_VCP; |
3601 | ||
56ac0383 | 3602 | if (ftdi->type == TYPE_2232H) |
be4bae37 AL |
3603 | { |
3604 | eeprom->channel_a_type = bit2type(buf[0x00] & 0x7); | |
3605 | eeprom->channel_b_type = bit2type(buf[0x01] & 0x7); | |
ec0dcd3f | 3606 | eeprom->suspend_dbus7 = buf[0x01] & SUSPEND_DBUS7_BIT; |
be4bae37 AL |
3607 | } |
3608 | else | |
3609 | { | |
3610 | eeprom->channel_c_driver = (buf[0x00] >> 4) & DRIVER_VCP; | |
3611 | eeprom->channel_d_driver = (buf[0x01] >> 4) & DRIVER_VCP; | |
3612 | eeprom->channel_a_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 0); | |
3613 | eeprom->channel_b_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 1); | |
3614 | eeprom->channel_c_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 2); | |
3615 | eeprom->channel_d_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 3); | |
3616 | } | |
2cde7c52 | 3617 | |
6cd4f922 | 3618 | eeprom->chip = buf[0x18]; |
db099ec5 UB |
3619 | eeprom->group0_drive = buf[0x0c] & DRIVE_16MA; |
3620 | eeprom->group0_schmitt = buf[0x0c] & IS_SCHMITT; | |
3621 | eeprom->group0_slew = buf[0x0c] & SLOW_SLEW; | |
3622 | eeprom->group1_drive = (buf[0x0c] >> 4) & 0x3; | |
3623 | eeprom->group1_schmitt = (buf[0x0c] >> 4) & IS_SCHMITT; | |
3624 | eeprom->group1_slew = (buf[0x0c] >> 4) & SLOW_SLEW; | |
3625 | eeprom->group2_drive = buf[0x0d] & DRIVE_16MA; | |
3626 | eeprom->group2_schmitt = buf[0x0d] & IS_SCHMITT; | |
3627 | eeprom->group2_slew = buf[0x0d] & SLOW_SLEW; | |
3628 | eeprom->group3_drive = (buf[0x0d] >> 4) & DRIVE_16MA; | |
3629 | eeprom->group3_schmitt = (buf[0x0d] >> 4) & IS_SCHMITT; | |
3630 | eeprom->group3_slew = (buf[0x0d] >> 4) & SLOW_SLEW; | |
947d9552 | 3631 | } |
c7e4c09e UB |
3632 | else if (ftdi->type == TYPE_232H) |
3633 | { | |
ac4a82a5 UB |
3634 | eeprom->channel_a_type = buf[0x00] & 0xf; |
3635 | eeprom->channel_a_driver = (buf[0x00] & DRIVER_VCPH)?DRIVER_VCP:0; | |
18199b76 UB |
3636 | eeprom->clock_polarity = buf[0x01] & FT1284_CLK_IDLE_STATE; |
3637 | eeprom->data_order = buf[0x01] & FT1284_DATA_LSB; | |
3638 | eeprom->flow_control = buf[0x01] & FT1284_FLOW_CONTROL; | |
837a71d6 | 3639 | eeprom->powersave = buf[0x01] & POWER_SAVE_DISABLE_H; |
91d7a201 UB |
3640 | eeprom->group0_drive = buf[0x0c] & DRIVE_16MA; |
3641 | eeprom->group0_schmitt = buf[0x0c] & IS_SCHMITT; | |
3642 | eeprom->group0_slew = buf[0x0c] & SLOW_SLEW; | |
3643 | eeprom->group1_drive = buf[0x0d] & DRIVE_16MA; | |
3644 | eeprom->group1_schmitt = buf[0x0d] & IS_SCHMITT; | |
3645 | eeprom->group1_slew = buf[0x0d] & SLOW_SLEW; | |
3646 | ||
263d3ba0 UB |
3647 | for(i=0; i<5; i++) |
3648 | { | |
3649 | eeprom->cbus_function[2*i ] = buf[0x18+i] & 0x0f; | |
3650 | eeprom->cbus_function[2*i+1] = (buf[0x18+i] >> 4) & 0x0f; | |
3651 | } | |
c7e4c09e UB |
3652 | eeprom->chip = buf[0x1e]; |
3653 | /*FIXME: Decipher more values*/ | |
3654 | } | |
2f80efc2 NP |
3655 | else if (ftdi->type == TYPE_230X) |
3656 | { | |
74387f27 TJ |
3657 | for(i=0; i<4; i++) |
3658 | { | |
2f80efc2 NP |
3659 | eeprom->cbus_function[i] = buf[0x1a + i] & 0xFF; |
3660 | } | |
3661 | eeprom->group0_drive = buf[0x0c] & 0x03; | |
3662 | eeprom->group0_schmitt = buf[0x0c] & IS_SCHMITT; | |
3663 | eeprom->group0_slew = buf[0x0c] & SLOW_SLEW; | |
3664 | eeprom->group1_drive = (buf[0x0c] >> 4) & 0x03; | |
3665 | eeprom->group1_schmitt = (buf[0x0c] >> 4) & IS_SCHMITT; | |
3666 | eeprom->group1_slew = (buf[0x0c] >> 4) & SLOW_SLEW; | |
34b79ac7 | 3667 | |
347d87e5 | 3668 | eeprom->invert = buf[0xb]; |
2f80efc2 | 3669 | } |
56ac0383 TJ |
3670 | |
3671 | if (verbose) | |
f6ef2983 | 3672 | { |
c45d2630 | 3673 | const char *channel_mode[] = {"UART", "FIFO", "CPU", "OPTO", "FT1284"}; |
f6ef2983 UB |
3674 | fprintf(stdout, "VID: 0x%04x\n",eeprom->vendor_id); |
3675 | fprintf(stdout, "PID: 0x%04x\n",eeprom->product_id); | |
68e78641 | 3676 | fprintf(stdout, "Release: 0x%04x\n",eeprom->release_number); |
f6ef2983 | 3677 | |
56ac0383 | 3678 | if (eeprom->self_powered) |
f6ef2983 UB |
3679 | fprintf(stdout, "Self-Powered%s", (eeprom->remote_wakeup)?", USB Remote Wake Up\n":"\n"); |
3680 | else | |
a7c32c59 | 3681 | fprintf(stdout, "Bus Powered: %3d mA%s", eeprom->max_power, |
f6ef2983 | 3682 | (eeprom->remote_wakeup)?" USB Remote Wake Up\n":"\n"); |
56ac0383 | 3683 | if (eeprom->manufacturer) |
f6ef2983 | 3684 | fprintf(stdout, "Manufacturer: %s\n",eeprom->manufacturer); |
56ac0383 | 3685 | if (eeprom->product) |
f6ef2983 | 3686 | fprintf(stdout, "Product: %s\n",eeprom->product); |
56ac0383 | 3687 | if (eeprom->serial) |
f6ef2983 | 3688 | fprintf(stdout, "Serial: %s\n",eeprom->serial); |
e107f509 | 3689 | fprintf(stdout, "Checksum : %04x\n", checksum); |
08518f8e | 3690 | if (ftdi->type == TYPE_R) { |
6cd4f922 | 3691 | fprintf(stdout, "Internal EEPROM\n"); |
08518f8e RA |
3692 | fprintf(stdout,"Oscillator: %s\n", eeprom->external_oscillator?"External":"Internal"); |
3693 | } | |
6cd4f922 UB |
3694 | else if (eeprom->chip >= 0x46) |
3695 | fprintf(stdout, "Attached EEPROM: 93x%02x\n", eeprom->chip); | |
56ac0383 TJ |
3696 | if (eeprom->suspend_dbus7) |
3697 | fprintf(stdout, "Suspend on DBUS7\n"); | |
3698 | if (eeprom->suspend_pull_downs) | |
fb9bfdd1 | 3699 | fprintf(stdout, "Pull IO pins low during suspend\n"); |
837a71d6 UB |
3700 | if(eeprom->powersave) |
3701 | { | |
3702 | if(ftdi->type >= TYPE_232H) | |
3703 | fprintf(stdout,"Enter low power state on ACBUS7\n"); | |
74387f27 | 3704 | } |
56ac0383 | 3705 | if (eeprom->remote_wakeup) |
fb9bfdd1 | 3706 | fprintf(stdout, "Enable Remote Wake Up\n"); |
802a949e | 3707 | fprintf(stdout, "PNP: %d\n",(eeprom->is_not_pnp)?0:1); |
db099ec5 | 3708 | if (ftdi->type >= TYPE_2232C) |
56ac0383 | 3709 | fprintf(stdout,"Channel A has Mode %s%s%s\n", |
e107f509 | 3710 | channel_mode[eeprom->channel_a_type], |
2cde7c52 UB |
3711 | (eeprom->channel_a_driver)?" VCP":"", |
3712 | (eeprom->high_current_a)?" High Current IO":""); | |
f45f4237 | 3713 | if (ftdi->type == TYPE_232H) |
18199b76 UB |
3714 | { |
3715 | fprintf(stdout,"FT1284 Mode Clock is idle %s, %s first, %sFlow Control\n", | |
3716 | (eeprom->clock_polarity)?"HIGH":"LOW", | |
3717 | (eeprom->data_order)?"LSB":"MSB", | |
3718 | (eeprom->flow_control)?"":"No "); | |
74387f27 | 3719 | } |
f45f4237 | 3720 | if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H)) |
56ac0383 | 3721 | fprintf(stdout,"Channel B has Mode %s%s%s\n", |
e107f509 | 3722 | channel_mode[eeprom->channel_b_type], |
2cde7c52 UB |
3723 | (eeprom->channel_b_driver)?" VCP":"", |
3724 | (eeprom->high_current_b)?" High Current IO":""); | |
caec1294 | 3725 | if (((ftdi->type == TYPE_BM) || (ftdi->type == TYPE_2232C)) && |
3986243d | 3726 | eeprom->use_usb_version) |
caec1294 UB |
3727 | fprintf(stdout,"Use explicit USB Version %04x\n",eeprom->usb_version); |
3728 | ||
56ac0383 | 3729 | if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H)) |
db099ec5 UB |
3730 | { |
3731 | fprintf(stdout,"%s has %d mA drive%s%s\n", | |
3732 | (ftdi->type == TYPE_2232H)?"AL":"A", | |
3733 | (eeprom->group0_drive+1) *4, | |
3734 | (eeprom->group0_schmitt)?" Schmitt Input":"", | |
3735 | (eeprom->group0_slew)?" Slow Slew":""); | |
3736 | fprintf(stdout,"%s has %d mA drive%s%s\n", | |
3737 | (ftdi->type == TYPE_2232H)?"AH":"B", | |
3738 | (eeprom->group1_drive+1) *4, | |
3739 | (eeprom->group1_schmitt)?" Schmitt Input":"", | |
3740 | (eeprom->group1_slew)?" Slow Slew":""); | |
3741 | fprintf(stdout,"%s has %d mA drive%s%s\n", | |
3742 | (ftdi->type == TYPE_2232H)?"BL":"C", | |
3743 | (eeprom->group2_drive+1) *4, | |
3744 | (eeprom->group2_schmitt)?" Schmitt Input":"", | |
3745 | (eeprom->group2_slew)?" Slow Slew":""); | |
3746 | fprintf(stdout,"%s has %d mA drive%s%s\n", | |
3747 | (ftdi->type == TYPE_2232H)?"BH":"D", | |
3748 | (eeprom->group3_drive+1) *4, | |
3749 | (eeprom->group3_schmitt)?" Schmitt Input":"", | |
3750 | (eeprom->group3_slew)?" Slow Slew":""); | |
3751 | } | |
91d7a201 UB |
3752 | else if (ftdi->type == TYPE_232H) |
3753 | { | |
c45d2630 | 3754 | const char *cbush_mux[] = {"TRISTATE","TXLED","RXLED", "TXRXLED","PWREN", |
74387f27 TJ |
3755 | "SLEEP","DRIVE_0","DRIVE_1","IOMODE","TXDEN", |
3756 | "CLK30","CLK15","CLK7_5" | |
3757 | }; | |
91d7a201 UB |
3758 | fprintf(stdout,"ACBUS has %d mA drive%s%s\n", |
3759 | (eeprom->group0_drive+1) *4, | |
3760 | (eeprom->group0_schmitt)?" Schmitt Input":"", | |
3761 | (eeprom->group0_slew)?" Slow Slew":""); | |
3762 | fprintf(stdout,"ADBUS has %d mA drive%s%s\n", | |
3763 | (eeprom->group1_drive+1) *4, | |
3764 | (eeprom->group1_schmitt)?" Schmitt Input":"", | |
3765 | (eeprom->group1_slew)?" Slow Slew":""); | |
263d3ba0 UB |
3766 | for (i=0; i<10; i++) |
3767 | { | |
3768 | if (eeprom->cbus_function[i]<= CBUSH_CLK7_5 ) | |
3769 | fprintf(stdout,"C%d Function: %s\n", i, | |
3770 | cbush_mux[eeprom->cbus_function[i]]); | |
3771 | } | |
91d7a201 | 3772 | } |
2f80efc2 NP |
3773 | else if (ftdi->type == TYPE_230X) |
3774 | { | |
c45d2630 | 3775 | const char *cbusx_mux[] = {"TRISTATE","TXLED","RXLED", "TXRXLED","PWREN", |
74387f27 TJ |
3776 | "SLEEP","DRIVE_0","DRIVE_1","IOMODE","TXDEN", |
3777 | "CLK24","CLK12","CLK6","BAT_DETECT","BAT_DETECT#", | |
3778 | "I2C_TXE#", "I2C_RXF#", "VBUS_SENSE", "BB_WR#", | |
3779 | "BBRD#", "TIME_STAMP", "AWAKE#", | |
3780 | }; | |
f45f4237 | 3781 | fprintf(stdout,"DBUS has %d mA drive%s%s\n", |
2f80efc2 NP |
3782 | (eeprom->group0_drive+1) *4, |
3783 | (eeprom->group0_schmitt)?" Schmitt Input":"", | |
3784 | (eeprom->group0_slew)?" Slow Slew":""); | |
3785 | fprintf(stdout,"CBUS has %d mA drive%s%s\n", | |
3786 | (eeprom->group1_drive+1) *4, | |
3787 | (eeprom->group1_schmitt)?" Schmitt Input":"", | |
3788 | (eeprom->group1_slew)?" Slow Slew":""); | |
3789 | for (i=0; i<4; i++) | |
3790 | { | |
add00ad6 RH |
3791 | if (eeprom->cbus_function[i]<= CBUSX_AWAKE) |
3792 | fprintf(stdout,"CBUS%d Function: %s\n", i, cbusx_mux[eeprom->cbus_function[i]]); | |
2f80efc2 | 3793 | } |
1ad9e4cc TJ |
3794 | |
3795 | if (eeprom->invert) | |
3796 | print_inverted_bits(eeprom->invert); | |
2f80efc2 | 3797 | } |
91d7a201 | 3798 | |
a4980043 UB |
3799 | if (ftdi->type == TYPE_R) |
3800 | { | |
c45d2630 | 3801 | const char *cbus_mux[] = {"TXDEN","PWREN","RXLED", "TXLED","TX+RXLED", |
13f00d3c | 3802 | "SLEEP","CLK48","CLK24","CLK12","CLK6", |
56ac0383 TJ |
3803 | "IOMODE","BB_WR","BB_RD" |
3804 | }; | |
c45d2630 | 3805 | const char *cbus_BB[] = {"RXF","TXE","RD", "WR"}; |
56ac0383 TJ |
3806 | |
3807 | if (eeprom->invert) | |
1ad9e4cc | 3808 | print_inverted_bits(eeprom->invert); |
13ea50d2 | 3809 | |
56ac0383 | 3810 | for (i=0; i<5; i++) |
a4980043 | 3811 | { |
add00ad6 | 3812 | if (eeprom->cbus_function[i]<=CBUS_BB_RD) |
a4980043 UB |
3813 | fprintf(stdout,"C%d Function: %s\n", i, |
3814 | cbus_mux[eeprom->cbus_function[i]]); | |
3815 | else | |
17431287 | 3816 | { |
598b2334 UB |
3817 | if (i < 4) |
3818 | /* Running MPROG show that C0..3 have fixed function Synchronous | |
3819 | Bit Bang mode */ | |
3820 | fprintf(stdout,"C%d BB Function: %s\n", i, | |
3821 | cbus_BB[i]); | |
3822 | else | |
3823 | fprintf(stdout, "Unknown CBUS mode. Might be special mode?\n"); | |
17431287 | 3824 | } |
a4980043 UB |
3825 | } |
3826 | } | |
f6ef2983 | 3827 | } |
4af1d1bb | 3828 | return 0; |
b56d5a64 MK |
3829 | } |
3830 | ||
1941414d | 3831 | /** |
44ef02bd UB |
3832 | Get a value from the decoded EEPROM structure |
3833 | ||
735e81ea TJ |
3834 | \param ftdi pointer to ftdi_context |
3835 | \param value_name Enum of the value to query | |
3836 | \param value Pointer to store read value | |
44ef02bd | 3837 | |
735e81ea TJ |
3838 | \retval 0: all fine |
3839 | \retval -1: Value doesn't exist | |
44ef02bd UB |
3840 | */ |
3841 | int ftdi_get_eeprom_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value value_name, int* value) | |
3842 | { | |
3843 | switch (value_name) | |
3844 | { | |
56ac0383 TJ |
3845 | case VENDOR_ID: |
3846 | *value = ftdi->eeprom->vendor_id; | |
3847 | break; | |
3848 | case PRODUCT_ID: | |
3849 | *value = ftdi->eeprom->product_id; | |
3850 | break; | |
68e78641 JS |
3851 | case RELEASE_NUMBER: |
3852 | *value = ftdi->eeprom->release_number; | |
3853 | break; | |
56ac0383 TJ |
3854 | case SELF_POWERED: |
3855 | *value = ftdi->eeprom->self_powered; | |
3856 | break; | |
3857 | case REMOTE_WAKEUP: | |
3858 | *value = ftdi->eeprom->remote_wakeup; | |
3859 | break; | |
3860 | case IS_NOT_PNP: | |
3861 | *value = ftdi->eeprom->is_not_pnp; | |
3862 | break; | |
3863 | case SUSPEND_DBUS7: | |
3864 | *value = ftdi->eeprom->suspend_dbus7; | |
3865 | break; | |
3866 | case IN_IS_ISOCHRONOUS: | |
3867 | *value = ftdi->eeprom->in_is_isochronous; | |
3868 | break; | |
cffed9f5 UB |
3869 | case OUT_IS_ISOCHRONOUS: |
3870 | *value = ftdi->eeprom->out_is_isochronous; | |
3871 | break; | |
56ac0383 TJ |
3872 | case SUSPEND_PULL_DOWNS: |
3873 | *value = ftdi->eeprom->suspend_pull_downs; | |
3874 | break; | |
3875 | case USE_SERIAL: | |
3876 | *value = ftdi->eeprom->use_serial; | |
3877 | break; | |
3878 | case USB_VERSION: | |
3879 | *value = ftdi->eeprom->usb_version; | |
3880 | break; | |
cffed9f5 UB |
3881 | case USE_USB_VERSION: |
3882 | *value = ftdi->eeprom->use_usb_version; | |
3883 | break; | |
56ac0383 TJ |
3884 | case MAX_POWER: |
3885 | *value = ftdi->eeprom->max_power; | |
3886 | break; | |
3887 | case CHANNEL_A_TYPE: | |
3888 | *value = ftdi->eeprom->channel_a_type; | |
3889 | break; | |
3890 | case CHANNEL_B_TYPE: | |
3891 | *value = ftdi->eeprom->channel_b_type; | |
3892 | break; | |
3893 | case CHANNEL_A_DRIVER: | |
3894 | *value = ftdi->eeprom->channel_a_driver; | |
3895 | break; | |
3896 | case CHANNEL_B_DRIVER: | |
3897 | *value = ftdi->eeprom->channel_b_driver; | |
3898 | break; | |
be4bae37 AL |
3899 | case CHANNEL_C_DRIVER: |
3900 | *value = ftdi->eeprom->channel_c_driver; | |
3901 | break; | |
3902 | case CHANNEL_D_DRIVER: | |
3903 | *value = ftdi->eeprom->channel_d_driver; | |
3904 | break; | |
3905 | case CHANNEL_A_RS485: | |
3906 | *value = ftdi->eeprom->channel_a_rs485enable; | |
3907 | break; | |
3908 | case CHANNEL_B_RS485: | |
3909 | *value = ftdi->eeprom->channel_b_rs485enable; | |
3910 | break; | |
3911 | case CHANNEL_C_RS485: | |
3912 | *value = ftdi->eeprom->channel_c_rs485enable; | |
3913 | break; | |
3914 | case CHANNEL_D_RS485: | |
3915 | *value = ftdi->eeprom->channel_d_rs485enable; | |
3916 | break; | |
56ac0383 TJ |
3917 | case CBUS_FUNCTION_0: |
3918 | *value = ftdi->eeprom->cbus_function[0]; | |
3919 | break; | |
3920 | case CBUS_FUNCTION_1: | |
3921 | *value = ftdi->eeprom->cbus_function[1]; | |
3922 | break; | |
3923 | case CBUS_FUNCTION_2: | |
3924 | *value = ftdi->eeprom->cbus_function[2]; | |
3925 | break; | |
3926 | case CBUS_FUNCTION_3: | |
3927 | *value = ftdi->eeprom->cbus_function[3]; | |
3928 | break; | |
3929 | case CBUS_FUNCTION_4: | |
3930 | *value = ftdi->eeprom->cbus_function[4]; | |
3931 | break; | |
263d3ba0 UB |
3932 | case CBUS_FUNCTION_5: |
3933 | *value = ftdi->eeprom->cbus_function[5]; | |
3934 | break; | |
3935 | case CBUS_FUNCTION_6: | |
3936 | *value = ftdi->eeprom->cbus_function[6]; | |
3937 | break; | |
3938 | case CBUS_FUNCTION_7: | |
3939 | *value = ftdi->eeprom->cbus_function[7]; | |
3940 | break; | |
3941 | case CBUS_FUNCTION_8: | |
3942 | *value = ftdi->eeprom->cbus_function[8]; | |
3943 | break; | |
3944 | case CBUS_FUNCTION_9: | |
1162549f | 3945 | *value = ftdi->eeprom->cbus_function[9]; |
263d3ba0 | 3946 | break; |
56ac0383 TJ |
3947 | case HIGH_CURRENT: |
3948 | *value = ftdi->eeprom->high_current; | |
3949 | break; | |
3950 | case HIGH_CURRENT_A: | |
3951 | *value = ftdi->eeprom->high_current_a; | |
3952 | break; | |
3953 | case HIGH_CURRENT_B: | |
3954 | *value = ftdi->eeprom->high_current_b; | |
3955 | break; | |
3956 | case INVERT: | |
3957 | *value = ftdi->eeprom->invert; | |
3958 | break; | |
3959 | case GROUP0_DRIVE: | |
3960 | *value = ftdi->eeprom->group0_drive; | |
3961 | break; | |
3962 | case GROUP0_SCHMITT: | |
3963 | *value = ftdi->eeprom->group0_schmitt; | |
3964 | break; | |
3965 | case GROUP0_SLEW: | |
3966 | *value = ftdi->eeprom->group0_slew; | |
3967 | break; | |
3968 | case GROUP1_DRIVE: | |
3969 | *value = ftdi->eeprom->group1_drive; | |
3970 | break; | |
3971 | case GROUP1_SCHMITT: | |
3972 | *value = ftdi->eeprom->group1_schmitt; | |
3973 | break; | |
3974 | case GROUP1_SLEW: | |
3975 | *value = ftdi->eeprom->group1_slew; | |
3976 | break; | |
3977 | case GROUP2_DRIVE: | |
3978 | *value = ftdi->eeprom->group2_drive; | |
3979 | break; | |
3980 | case GROUP2_SCHMITT: | |
3981 | *value = ftdi->eeprom->group2_schmitt; | |
3982 | break; | |
3983 | case GROUP2_SLEW: | |
3984 | *value = ftdi->eeprom->group2_slew; | |
3985 | break; | |
3986 | case GROUP3_DRIVE: | |
3987 | *value = ftdi->eeprom->group3_drive; | |
3988 | break; | |
3989 | case GROUP3_SCHMITT: | |
3990 | *value = ftdi->eeprom->group3_schmitt; | |
3991 | break; | |
3992 | case GROUP3_SLEW: | |
3993 | *value = ftdi->eeprom->group3_slew; | |
3994 | break; | |
74387f27 | 3995 | case POWER_SAVE: |
837a71d6 UB |
3996 | *value = ftdi->eeprom->powersave; |
3997 | break; | |
74387f27 | 3998 | case CLOCK_POLARITY: |
18199b76 UB |
3999 | *value = ftdi->eeprom->clock_polarity; |
4000 | break; | |
74387f27 | 4001 | case DATA_ORDER: |
18199b76 UB |
4002 | *value = ftdi->eeprom->data_order; |
4003 | break; | |
74387f27 | 4004 | case FLOW_CONTROL: |
18199b76 UB |
4005 | *value = ftdi->eeprom->flow_control; |
4006 | break; | |
74387f27 | 4007 | case CHIP_TYPE: |
56ac0383 TJ |
4008 | *value = ftdi->eeprom->chip; |
4009 | break; | |
4010 | case CHIP_SIZE: | |
4011 | *value = ftdi->eeprom->size; | |
4012 | break; | |
08518f8e RA |
4013 | case EXTERNAL_OSCILLATOR: |
4014 | *value = ftdi->eeprom->external_oscillator; | |
4015 | break; | |
56ac0383 TJ |
4016 | default: |
4017 | ftdi_error_return(-1, "Request for unknown EEPROM value"); | |
44ef02bd UB |
4018 | } |
4019 | return 0; | |
4020 | } | |
4021 | ||
4022 | /** | |
4023 | Set a value in the decoded EEPROM Structure | |
4024 | No parameter checking is performed | |
4025 | ||
735e81ea | 4026 | \param ftdi pointer to ftdi_context |
545f9df9 | 4027 | \param value_name Enum of the value to set |
735e81ea | 4028 | \param value to set |
44ef02bd | 4029 | |
735e81ea TJ |
4030 | \retval 0: all fine |
4031 | \retval -1: Value doesn't exist | |
4032 | \retval -2: Value not user settable | |
44ef02bd UB |
4033 | */ |
4034 | int ftdi_set_eeprom_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value value_name, int value) | |
4035 | { | |
4036 | switch (value_name) | |
4037 | { | |
56ac0383 TJ |
4038 | case VENDOR_ID: |
4039 | ftdi->eeprom->vendor_id = value; | |
4040 | break; | |
4041 | case PRODUCT_ID: | |
4042 | ftdi->eeprom->product_id = value; | |
4043 | break; | |
68e78641 JS |
4044 | case RELEASE_NUMBER: |
4045 | ftdi->eeprom->release_number = value; | |
4046 | break; | |
56ac0383 TJ |
4047 | case SELF_POWERED: |
4048 | ftdi->eeprom->self_powered = value; | |
4049 | break; | |
4050 | case REMOTE_WAKEUP: | |
4051 | ftdi->eeprom->remote_wakeup = value; | |
4052 | break; | |
4053 | case IS_NOT_PNP: | |
4054 | ftdi->eeprom->is_not_pnp = value; | |
4055 | break; | |
4056 | case SUSPEND_DBUS7: | |
4057 | ftdi->eeprom->suspend_dbus7 = value; | |
4058 | break; | |
4059 | case IN_IS_ISOCHRONOUS: | |
4060 | ftdi->eeprom->in_is_isochronous = value; | |
4061 | break; | |
cffed9f5 UB |
4062 | case OUT_IS_ISOCHRONOUS: |
4063 | ftdi->eeprom->out_is_isochronous = value; | |
4064 | break; | |
56ac0383 TJ |
4065 | case SUSPEND_PULL_DOWNS: |
4066 | ftdi->eeprom->suspend_pull_downs = value; | |
4067 | break; | |
4068 | case USE_SERIAL: | |
4069 | ftdi->eeprom->use_serial = value; | |
4070 | break; | |
4071 | case USB_VERSION: | |
4072 | ftdi->eeprom->usb_version = value; | |
4073 | break; | |
cffed9f5 UB |
4074 | case USE_USB_VERSION: |
4075 | ftdi->eeprom->use_usb_version = value; | |
4076 | break; | |
56ac0383 TJ |
4077 | case MAX_POWER: |
4078 | ftdi->eeprom->max_power = value; | |
4079 | break; | |
4080 | case CHANNEL_A_TYPE: | |
4081 | ftdi->eeprom->channel_a_type = value; | |
4082 | break; | |
4083 | case CHANNEL_B_TYPE: | |
4084 | ftdi->eeprom->channel_b_type = value; | |
4085 | break; | |
4086 | case CHANNEL_A_DRIVER: | |
4087 | ftdi->eeprom->channel_a_driver = value; | |
4088 | break; | |
4089 | case CHANNEL_B_DRIVER: | |
4090 | ftdi->eeprom->channel_b_driver = value; | |
4091 | break; | |
be4bae37 AL |
4092 | case CHANNEL_C_DRIVER: |
4093 | ftdi->eeprom->channel_c_driver = value; | |
4094 | break; | |
4095 | case CHANNEL_D_DRIVER: | |
4096 | ftdi->eeprom->channel_d_driver = value; | |
4097 | break; | |
4098 | case CHANNEL_A_RS485: | |
4099 | ftdi->eeprom->channel_a_rs485enable = value; | |
4100 | break; | |
4101 | case CHANNEL_B_RS485: | |
4102 | ftdi->eeprom->channel_b_rs485enable = value; | |
4103 | break; | |
4104 | case CHANNEL_C_RS485: | |
4105 | ftdi->eeprom->channel_c_rs485enable = value; | |
4106 | break; | |
4107 | case CHANNEL_D_RS485: | |
4108 | ftdi->eeprom->channel_d_rs485enable = value; | |
4109 | break; | |
56ac0383 TJ |
4110 | case CBUS_FUNCTION_0: |
4111 | ftdi->eeprom->cbus_function[0] = value; | |
4112 | break; | |
4113 | case CBUS_FUNCTION_1: | |
4114 | ftdi->eeprom->cbus_function[1] = value; | |
4115 | break; | |
4116 | case CBUS_FUNCTION_2: | |
4117 | ftdi->eeprom->cbus_function[2] = value; | |
4118 | break; | |
4119 | case CBUS_FUNCTION_3: | |
4120 | ftdi->eeprom->cbus_function[3] = value; | |
4121 | break; | |
4122 | case CBUS_FUNCTION_4: | |
4123 | ftdi->eeprom->cbus_function[4] = value; | |
4124 | break; | |
263d3ba0 UB |
4125 | case CBUS_FUNCTION_5: |
4126 | ftdi->eeprom->cbus_function[5] = value; | |
4127 | break; | |
4128 | case CBUS_FUNCTION_6: | |
4129 | ftdi->eeprom->cbus_function[6] = value; | |
4130 | break; | |
4131 | case CBUS_FUNCTION_7: | |
4132 | ftdi->eeprom->cbus_function[7] = value; | |
4133 | break; | |
4134 | case CBUS_FUNCTION_8: | |
4135 | ftdi->eeprom->cbus_function[8] = value; | |
4136 | break; | |
4137 | case CBUS_FUNCTION_9: | |
4138 | ftdi->eeprom->cbus_function[9] = value; | |
4139 | break; | |
56ac0383 TJ |
4140 | case HIGH_CURRENT: |
4141 | ftdi->eeprom->high_current = value; | |
4142 | break; | |
4143 | case HIGH_CURRENT_A: | |
4144 | ftdi->eeprom->high_current_a = value; | |
4145 | break; | |
4146 | case HIGH_CURRENT_B: | |
4147 | ftdi->eeprom->high_current_b = value; | |
4148 | break; | |
4149 | case INVERT: | |
4150 | ftdi->eeprom->invert = value; | |
4151 | break; | |
4152 | case GROUP0_DRIVE: | |
4153 | ftdi->eeprom->group0_drive = value; | |
4154 | break; | |
4155 | case GROUP0_SCHMITT: | |
4156 | ftdi->eeprom->group0_schmitt = value; | |
4157 | break; | |
4158 | case GROUP0_SLEW: | |
4159 | ftdi->eeprom->group0_slew = value; | |
4160 | break; | |
4161 | case GROUP1_DRIVE: | |
4162 | ftdi->eeprom->group1_drive = value; | |
4163 | break; | |
4164 | case GROUP1_SCHMITT: | |
4165 | ftdi->eeprom->group1_schmitt = value; | |
4166 | break; | |
4167 | case GROUP1_SLEW: | |
4168 | ftdi->eeprom->group1_slew = value; | |
4169 | break; | |
4170 | case GROUP2_DRIVE: | |
4171 | ftdi->eeprom->group2_drive = value; | |
4172 | break; | |
4173 | case GROUP2_SCHMITT: | |
4174 | ftdi->eeprom->group2_schmitt = value; | |
4175 | break; | |
4176 | case GROUP2_SLEW: | |
4177 | ftdi->eeprom->group2_slew = value; | |
4178 | break; | |
4179 | case GROUP3_DRIVE: | |
4180 | ftdi->eeprom->group3_drive = value; | |
4181 | break; | |
4182 | case GROUP3_SCHMITT: | |
4183 | ftdi->eeprom->group3_schmitt = value; | |
4184 | break; | |
4185 | case GROUP3_SLEW: | |
4186 | ftdi->eeprom->group3_slew = value; | |
4187 | break; | |
4188 | case CHIP_TYPE: | |
4189 | ftdi->eeprom->chip = value; | |
4190 | break; | |
74387f27 | 4191 | case POWER_SAVE: |
837a71d6 UB |
4192 | ftdi->eeprom->powersave = value; |
4193 | break; | |
74387f27 | 4194 | case CLOCK_POLARITY: |
18199b76 UB |
4195 | ftdi->eeprom->clock_polarity = value; |
4196 | break; | |
74387f27 | 4197 | case DATA_ORDER: |
18199b76 UB |
4198 | ftdi->eeprom->data_order = value; |
4199 | break; | |
74387f27 | 4200 | case FLOW_CONTROL: |
18199b76 UB |
4201 | ftdi->eeprom->flow_control = value; |
4202 | break; | |
56ac0383 TJ |
4203 | case CHIP_SIZE: |
4204 | ftdi_error_return(-2, "EEPROM Value can't be changed"); | |
34b79ac7 | 4205 | break; |
08518f8e RA |
4206 | case EXTERNAL_OSCILLATOR: |
4207 | ftdi->eeprom->external_oscillator = value; | |
4208 | break; | |
6e962b9a SET |
4209 | case USER_DATA_ADDR: |
4210 | ftdi->eeprom->user_data_addr = value; | |
4211 | break; | |
34b79ac7 | 4212 | |
56ac0383 TJ |
4213 | default : |
4214 | ftdi_error_return(-1, "Request to unknown EEPROM value"); | |
44ef02bd | 4215 | } |
45a3ebd5 | 4216 | ftdi->eeprom->initialized_for_connected_device = 0; |
44ef02bd UB |
4217 | return 0; |
4218 | } | |
4219 | ||
4220 | /** Get the read-only buffer to the binary EEPROM content | |
4221 | ||
4222 | \param ftdi pointer to ftdi_context | |
735e81ea | 4223 | \param buf buffer to receive EEPROM content |
44ef02bd UB |
4224 | \param size Size of receiving buffer |
4225 | ||
4226 | \retval 0: All fine | |
4227 | \retval -1: struct ftdi_contxt or ftdi_eeprom missing | |
200bd3ed | 4228 | \retval -2: Not enough room to store eeprom |
44ef02bd | 4229 | */ |
56ac0383 TJ |
4230 | int ftdi_get_eeprom_buf(struct ftdi_context *ftdi, unsigned char * buf, int size) |
4231 | { | |
4232 | if (!ftdi || !(ftdi->eeprom)) | |
4233 | ftdi_error_return(-1, "No appropriate structure"); | |
b95e4654 | 4234 | |
200bd3ed TJ |
4235 | if (!buf || size < ftdi->eeprom->size) |
4236 | ftdi_error_return(-1, "Not enough room to store eeprom"); | |
4237 | ||
b95e4654 TJ |
4238 | // Only copy up to FTDI_MAX_EEPROM_SIZE bytes |
4239 | if (size > FTDI_MAX_EEPROM_SIZE) | |
4240 | size = FTDI_MAX_EEPROM_SIZE; | |
4241 | ||
56ac0383 | 4242 | memcpy(buf, ftdi->eeprom->buf, size); |
b95e4654 | 4243 | |
56ac0383 TJ |
4244 | return 0; |
4245 | } | |
44ef02bd | 4246 | |
672fd368 UB |
4247 | /** Set the EEPROM content from the user-supplied prefilled buffer |
4248 | ||
4249 | \param ftdi pointer to ftdi_context | |
4250 | \param buf buffer to read EEPROM content | |
4251 | \param size Size of buffer | |
4252 | ||
4253 | \retval 0: All fine | |
6e962b9a | 4254 | \retval -1: struct ftdi_context or ftdi_eeprom or buf missing |
672fd368 UB |
4255 | */ |
4256 | int ftdi_set_eeprom_buf(struct ftdi_context *ftdi, const unsigned char * buf, int size) | |
4257 | { | |
4258 | if (!ftdi || !(ftdi->eeprom) || !buf) | |
4259 | ftdi_error_return(-1, "No appropriate structure"); | |
4260 | ||
4261 | // Only copy up to FTDI_MAX_EEPROM_SIZE bytes | |
4262 | if (size > FTDI_MAX_EEPROM_SIZE) | |
4263 | size = FTDI_MAX_EEPROM_SIZE; | |
4264 | ||
4265 | memcpy(ftdi->eeprom->buf, buf, size); | |
4266 | ||
4267 | return 0; | |
4268 | } | |
4269 | ||
6e962b9a SET |
4270 | /** Set the EEPROM user data content from the user-supplied prefilled buffer |
4271 | ||
4272 | \param ftdi pointer to ftdi_context | |
4273 | \param buf buffer to read EEPROM user data content | |
4274 | \param size Size of buffer | |
4275 | ||
4276 | \retval 0: All fine | |
4277 | \retval -1: struct ftdi_context or ftdi_eeprom or buf missing | |
4278 | */ | |
4279 | int ftdi_set_eeprom_user_data(struct ftdi_context *ftdi, const char * buf, int size) | |
4280 | { | |
4281 | if (!ftdi || !(ftdi->eeprom) || !buf) | |
4282 | ftdi_error_return(-1, "No appropriate structure"); | |
4283 | ||
4284 | ftdi->eeprom->user_data_size = size; | |
4285 | ftdi->eeprom->user_data = buf; | |
4286 | return 0; | |
4287 | } | |
4288 | ||
44ef02bd | 4289 | /** |
c1c70e13 OS |
4290 | Read eeprom location |
4291 | ||
4292 | \param ftdi pointer to ftdi_context | |
4293 | \param eeprom_addr Address of eeprom location to be read | |
4294 | \param eeprom_val Pointer to store read eeprom location | |
4295 | ||
4296 | \retval 0: all fine | |
4297 | \retval -1: read failed | |
22a1b5c1 | 4298 | \retval -2: USB device unavailable |
c1c70e13 OS |
4299 | */ |
4300 | int ftdi_read_eeprom_location (struct ftdi_context *ftdi, int eeprom_addr, unsigned short *eeprom_val) | |
4301 | { | |
1a3cb7f8 YY |
4302 | unsigned char buf[2]; |
4303 | ||
22a1b5c1 TJ |
4304 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
4305 | ftdi_error_return(-2, "USB device unavailable"); | |
4306 | ||
1a3cb7f8 | 4307 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_IN_REQTYPE, SIO_READ_EEPROM_REQUEST, 0, eeprom_addr, buf, 2, ftdi->usb_read_timeout) != 2) |
c1c70e13 OS |
4308 | ftdi_error_return(-1, "reading eeprom failed"); |
4309 | ||
1a3cb7f8 YY |
4310 | *eeprom_val = (0xff & buf[0]) | (buf[1] << 8); |
4311 | ||
c1c70e13 OS |
4312 | return 0; |
4313 | } | |
4314 | ||
4315 | /** | |
1941414d TJ |
4316 | Read eeprom |
4317 | ||
4318 | \param ftdi pointer to ftdi_context | |
b8aa7b35 | 4319 | |
1941414d TJ |
4320 | \retval 0: all fine |
4321 | \retval -1: read failed | |
22a1b5c1 | 4322 | \retval -2: USB device unavailable |
1941414d | 4323 | */ |
a35aa9bd | 4324 | int ftdi_read_eeprom(struct ftdi_context *ftdi) |
a8f46ddc | 4325 | { |
a3da1d95 | 4326 | int i; |
a35aa9bd | 4327 | unsigned char *buf; |
a3da1d95 | 4328 | |
22a1b5c1 TJ |
4329 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
4330 | ftdi_error_return(-2, "USB device unavailable"); | |
a35aa9bd | 4331 | buf = ftdi->eeprom->buf; |
22a1b5c1 | 4332 | |
2d543486 | 4333 | for (i = 0; i < FTDI_MAX_EEPROM_SIZE/2; i++) |
22d12cda | 4334 | { |
a35aa9bd | 4335 | if (libusb_control_transfer( |
56ac0383 TJ |
4336 | ftdi->usb_dev, FTDI_DEVICE_IN_REQTYPE,SIO_READ_EEPROM_REQUEST, 0, i, |
4337 | buf+(i*2), 2, ftdi->usb_read_timeout) != 2) | |
c3d95b87 | 4338 | ftdi_error_return(-1, "reading eeprom failed"); |
a3da1d95 GE |
4339 | } |
4340 | ||
2d543486 | 4341 | if (ftdi->type == TYPE_R) |
a35aa9bd | 4342 | ftdi->eeprom->size = 0x80; |
56ac0383 | 4343 | /* Guesses size of eeprom by comparing halves |
2d543486 | 4344 | - will not work with blank eeprom */ |
a35aa9bd | 4345 | else if (strrchr((const char *)buf, 0xff) == ((const char *)buf +FTDI_MAX_EEPROM_SIZE -1)) |
2d543486 | 4346 | ftdi->eeprom->size = -1; |
56ac0383 | 4347 | else if (memcmp(buf,&buf[0x80],0x80) == 0) |
2d543486 | 4348 | ftdi->eeprom->size = 0x80; |
56ac0383 | 4349 | else if (memcmp(buf,&buf[0x40],0x40) == 0) |
2d543486 UB |
4350 | ftdi->eeprom->size = 0x40; |
4351 | else | |
4352 | ftdi->eeprom->size = 0x100; | |
a3da1d95 GE |
4353 | return 0; |
4354 | } | |
4355 | ||
cb6250fa TJ |
4356 | /* |
4357 | ftdi_read_chipid_shift does the bitshift operation needed for the FTDIChip-ID | |
4358 | Function is only used internally | |
4359 | \internal | |
4360 | */ | |
4361 | static unsigned char ftdi_read_chipid_shift(unsigned char value) | |
4362 | { | |
4363 | return ((value & 1) << 1) | | |
22d12cda TJ |
4364 | ((value & 2) << 5) | |
4365 | ((value & 4) >> 2) | | |
4366 | ((value & 8) << 4) | | |
4367 | ((value & 16) >> 1) | | |
4368 | ((value & 32) >> 1) | | |
4369 | ((value & 64) >> 4) | | |
4370 | ((value & 128) >> 2); | |
cb6250fa TJ |
4371 | } |
4372 | ||
4373 | /** | |
4374 | Read the FTDIChip-ID from R-type devices | |
4375 | ||
4376 | \param ftdi pointer to ftdi_context | |
4377 | \param chipid Pointer to store FTDIChip-ID | |
4378 | ||
4379 | \retval 0: all fine | |
4380 | \retval -1: read failed | |
22a1b5c1 | 4381 | \retval -2: USB device unavailable |
cb6250fa TJ |
4382 | */ |
4383 | int ftdi_read_chipid(struct ftdi_context *ftdi, unsigned int *chipid) | |
4384 | { | |
c7eb3112 | 4385 | unsigned int a = 0, b = 0; |
cb6250fa | 4386 | |
22a1b5c1 TJ |
4387 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
4388 | ftdi_error_return(-2, "USB device unavailable"); | |
4389 | ||
579b006f | 4390 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_IN_REQTYPE, SIO_READ_EEPROM_REQUEST, 0, 0x43, (unsigned char *)&a, 2, ftdi->usb_read_timeout) == 2) |
cb6250fa TJ |
4391 | { |
4392 | a = a << 8 | a >> 8; | |
579b006f | 4393 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_IN_REQTYPE, SIO_READ_EEPROM_REQUEST, 0, 0x44, (unsigned char *)&b, 2, ftdi->usb_read_timeout) == 2) |
cb6250fa TJ |
4394 | { |
4395 | b = b << 8 | b >> 8; | |
5230676f | 4396 | a = (a << 16) | (b & 0xFFFF); |
912d50ca TJ |
4397 | a = ftdi_read_chipid_shift(a) | ftdi_read_chipid_shift(a>>8)<<8 |
4398 | | ftdi_read_chipid_shift(a>>16)<<16 | ftdi_read_chipid_shift(a>>24)<<24; | |
cb6250fa | 4399 | *chipid = a ^ 0xa5f0f7d1; |
c7eb3112 | 4400 | return 0; |
cb6250fa TJ |
4401 | } |
4402 | } | |
4403 | ||
c7eb3112 | 4404 | ftdi_error_return(-1, "read of FTDIChip-ID failed"); |
cb6250fa TJ |
4405 | } |
4406 | ||
1941414d | 4407 | /** |
c1c70e13 OS |
4408 | Write eeprom location |
4409 | ||
4410 | \param ftdi pointer to ftdi_context | |
4411 | \param eeprom_addr Address of eeprom location to be written | |
4412 | \param eeprom_val Value to be written | |
4413 | ||
4414 | \retval 0: all fine | |
a661e3e4 | 4415 | \retval -1: write failed |
22a1b5c1 | 4416 | \retval -2: USB device unavailable |
a661e3e4 UB |
4417 | \retval -3: Invalid access to checksum protected area below 0x80 |
4418 | \retval -4: Device can't access unprotected area | |
4419 | \retval -5: Reading chip type failed | |
c1c70e13 | 4420 | */ |
56ac0383 | 4421 | int ftdi_write_eeprom_location(struct ftdi_context *ftdi, int eeprom_addr, |
a661e3e4 | 4422 | unsigned short eeprom_val) |
c1c70e13 | 4423 | { |
a661e3e4 UB |
4424 | int chip_type_location; |
4425 | unsigned short chip_type; | |
4426 | ||
22a1b5c1 TJ |
4427 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
4428 | ftdi_error_return(-2, "USB device unavailable"); | |
4429 | ||
56ac0383 | 4430 | if (eeprom_addr <0x80) |
a661e3e4 UB |
4431 | ftdi_error_return(-2, "Invalid access to checksum protected area below 0x80"); |
4432 | ||
4433 | ||
4434 | switch (ftdi->type) | |
4435 | { | |
56ac0383 TJ |
4436 | case TYPE_BM: |
4437 | case TYPE_2232C: | |
4438 | chip_type_location = 0x14; | |
4439 | break; | |
4440 | case TYPE_2232H: | |
4441 | case TYPE_4232H: | |
4442 | chip_type_location = 0x18; | |
4443 | break; | |
c7e4c09e UB |
4444 | case TYPE_232H: |
4445 | chip_type_location = 0x1e; | |
4446 | break; | |
56ac0383 TJ |
4447 | default: |
4448 | ftdi_error_return(-4, "Device can't access unprotected area"); | |
a661e3e4 UB |
4449 | } |
4450 | ||
56ac0383 | 4451 | if (ftdi_read_eeprom_location( ftdi, chip_type_location>>1, &chip_type)) |
a00c0a85 | 4452 | ftdi_error_return(-5, "Reading failed"); |
56ac0383 TJ |
4453 | fprintf(stderr," loc 0x%04x val 0x%04x\n", chip_type_location,chip_type); |
4454 | if ((chip_type & 0xff) != 0x66) | |
a661e3e4 UB |
4455 | { |
4456 | ftdi_error_return(-6, "EEPROM is not of 93x66"); | |
4457 | } | |
4458 | ||
579b006f | 4459 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
56ac0383 TJ |
4460 | SIO_WRITE_EEPROM_REQUEST, eeprom_val, eeprom_addr, |
4461 | NULL, 0, ftdi->usb_write_timeout) != 0) | |
c1c70e13 OS |
4462 | ftdi_error_return(-1, "unable to write eeprom"); |
4463 | ||
4464 | return 0; | |
4465 | } | |
4466 | ||
4467 | /** | |
1941414d | 4468 | Write eeprom |
a3da1d95 | 4469 | |
1941414d | 4470 | \param ftdi pointer to ftdi_context |
56ac0383 | 4471 | |
1941414d TJ |
4472 | \retval 0: all fine |
4473 | \retval -1: read failed | |
22a1b5c1 | 4474 | \retval -2: USB device unavailable |
44f41f11 | 4475 | \retval -3: EEPROM not initialized for the connected device; |
1941414d | 4476 | */ |
a35aa9bd | 4477 | int ftdi_write_eeprom(struct ftdi_context *ftdi) |
a8f46ddc | 4478 | { |
ba5329be | 4479 | unsigned short usb_val, status; |
e30da501 | 4480 | int i, ret; |
a35aa9bd | 4481 | unsigned char *eeprom; |
a3da1d95 | 4482 | |
22a1b5c1 TJ |
4483 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
4484 | ftdi_error_return(-2, "USB device unavailable"); | |
44f41f11 UB |
4485 | |
4486 | if(ftdi->eeprom->initialized_for_connected_device == 0) | |
4487 | ftdi_error_return(-3, "EEPROM not initialized for the connected device"); | |
4488 | ||
a35aa9bd | 4489 | eeprom = ftdi->eeprom->buf; |
22a1b5c1 | 4490 | |
ba5329be | 4491 | /* These commands were traced while running MProg */ |
e30da501 TJ |
4492 | if ((ret = ftdi_usb_reset(ftdi)) != 0) |
4493 | return ret; | |
4494 | if ((ret = ftdi_poll_modem_status(ftdi, &status)) != 0) | |
4495 | return ret; | |
4496 | if ((ret = ftdi_set_latency_timer(ftdi, 0x77)) != 0) | |
4497 | return ret; | |
ba5329be | 4498 | |
c0a96aed | 4499 | for (i = 0; i < ftdi->eeprom->size/2; i++) |
22d12cda | 4500 | { |
2f80efc2 | 4501 | /* Do not try to write to reserved area */ |
74387f27 TJ |
4502 | if ((ftdi->type == TYPE_230X) && (i == 0x40)) |
4503 | { | |
2f80efc2 NP |
4504 | i = 0x50; |
4505 | } | |
d9f0cce7 TJ |
4506 | usb_val = eeprom[i*2]; |
4507 | usb_val += eeprom[(i*2)+1] << 8; | |
579b006f JZ |
4508 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
4509 | SIO_WRITE_EEPROM_REQUEST, usb_val, i, | |
4510 | NULL, 0, ftdi->usb_write_timeout) < 0) | |
c3d95b87 | 4511 | ftdi_error_return(-1, "unable to write eeprom"); |
a3da1d95 GE |
4512 | } |
4513 | ||
4514 | return 0; | |
4515 | } | |
4516 | ||
1941414d TJ |
4517 | /** |
4518 | Erase eeprom | |
a3da1d95 | 4519 | |
a5e1bd8c MK |
4520 | This is not supported on FT232R/FT245R according to the MProg manual from FTDI. |
4521 | ||
1941414d TJ |
4522 | \param ftdi pointer to ftdi_context |
4523 | ||
4524 | \retval 0: all fine | |
4525 | \retval -1: erase failed | |
22a1b5c1 | 4526 | \retval -2: USB device unavailable |
99404ad5 UB |
4527 | \retval -3: Writing magic failed |
4528 | \retval -4: Read EEPROM failed | |
4529 | \retval -5: Unexpected EEPROM value | |
1941414d | 4530 | */ |
99404ad5 | 4531 | #define MAGIC 0x55aa |
a8f46ddc TJ |
4532 | int ftdi_erase_eeprom(struct ftdi_context *ftdi) |
4533 | { | |
99404ad5 | 4534 | unsigned short eeprom_value; |
22a1b5c1 TJ |
4535 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
4536 | ftdi_error_return(-2, "USB device unavailable"); | |
4537 | ||
519bbce1 | 4538 | if ((ftdi->type == TYPE_R) || (ftdi->type == TYPE_230X)) |
99404ad5 UB |
4539 | { |
4540 | ftdi->eeprom->chip = 0; | |
4541 | return 0; | |
4542 | } | |
4543 | ||
56ac0383 | 4544 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, SIO_ERASE_EEPROM_REQUEST, |
99404ad5 | 4545 | 0, 0, NULL, 0, ftdi->usb_write_timeout) < 0) |
c3d95b87 | 4546 | ftdi_error_return(-1, "unable to erase eeprom"); |
a3da1d95 | 4547 | |
56ac0383 | 4548 | |
99404ad5 UB |
4549 | /* detect chip type by writing 0x55AA as magic at word position 0xc0 |
4550 | Chip is 93x46 if magic is read at word position 0x00, as wraparound happens around 0x40 | |
4551 | Chip is 93x56 if magic is read at word position 0x40, as wraparound happens around 0x80 | |
4552 | Chip is 93x66 if magic is only read at word position 0xc0*/ | |
10186c1f | 4553 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
56ac0383 TJ |
4554 | SIO_WRITE_EEPROM_REQUEST, MAGIC, 0xc0, |
4555 | NULL, 0, ftdi->usb_write_timeout) != 0) | |
99404ad5 | 4556 | ftdi_error_return(-3, "Writing magic failed"); |
56ac0383 | 4557 | if (ftdi_read_eeprom_location( ftdi, 0x00, &eeprom_value)) |
a00c0a85 | 4558 | ftdi_error_return(-4, "Reading failed"); |
56ac0383 | 4559 | if (eeprom_value == MAGIC) |
99404ad5 UB |
4560 | { |
4561 | ftdi->eeprom->chip = 0x46; | |
4562 | } | |
56ac0383 | 4563 | else |
99404ad5 | 4564 | { |
56ac0383 | 4565 | if (ftdi_read_eeprom_location( ftdi, 0x40, &eeprom_value)) |
a00c0a85 | 4566 | ftdi_error_return(-4, "Reading failed"); |
56ac0383 | 4567 | if (eeprom_value == MAGIC) |
99404ad5 | 4568 | ftdi->eeprom->chip = 0x56; |
56ac0383 | 4569 | else |
99404ad5 | 4570 | { |
56ac0383 | 4571 | if (ftdi_read_eeprom_location( ftdi, 0xc0, &eeprom_value)) |
a00c0a85 | 4572 | ftdi_error_return(-4, "Reading failed"); |
56ac0383 | 4573 | if (eeprom_value == MAGIC) |
99404ad5 UB |
4574 | ftdi->eeprom->chip = 0x66; |
4575 | else | |
4576 | { | |
4577 | ftdi->eeprom->chip = -1; | |
4578 | } | |
4579 | } | |
4580 | } | |
56ac0383 | 4581 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, SIO_ERASE_EEPROM_REQUEST, |
99404ad5 UB |
4582 | 0, 0, NULL, 0, ftdi->usb_write_timeout) < 0) |
4583 | ftdi_error_return(-1, "unable to erase eeprom"); | |
a3da1d95 GE |
4584 | return 0; |
4585 | } | |
c3d95b87 | 4586 | |
1941414d TJ |
4587 | /** |
4588 | Get string representation for last error code | |
c3d95b87 | 4589 | |
1941414d TJ |
4590 | \param ftdi pointer to ftdi_context |
4591 | ||
4592 | \retval Pointer to error string | |
4593 | */ | |
c45d2630 | 4594 | const char *ftdi_get_error_string (struct ftdi_context *ftdi) |
c3d95b87 | 4595 | { |
22a1b5c1 TJ |
4596 | if (ftdi == NULL) |
4597 | return ""; | |
4598 | ||
c3d95b87 TJ |
4599 | return ftdi->error_str; |
4600 | } | |
a01d31e2 | 4601 | |
b5ec1820 | 4602 | /* @} end of doxygen libftdi group */ |