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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 | { | |
3b3a9614 | 90 | struct ftdi_eeprom* 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 | |
3b3a9614 | 114 | eeprom = (struct ftdi_eeprom *)malloc(sizeof(struct ftdi_eeprom)); |
a35aa9bd UB |
115 | if (eeprom == 0) |
116 | ftdi_error_return(-2, "Can't malloc struct ftdi_eeprom"); | |
b4d19dea | 117 | memset(eeprom, 0, sizeof(struct ftdi_eeprom)); |
a35aa9bd | 118 | ftdi->eeprom = eeprom; |
c201f80f | 119 | |
1c733d33 TJ |
120 | /* All fine. Now allocate the readbuffer */ |
121 | return ftdi_read_data_set_chunksize(ftdi, 4096); | |
948f9ada | 122 | } |
4837f98a | 123 | |
1941414d | 124 | /** |
cef378aa TJ |
125 | Allocate and initialize a new ftdi_context |
126 | ||
127 | \return a pointer to a new ftdi_context, or NULL on failure | |
128 | */ | |
672ac008 | 129 | struct ftdi_context *ftdi_new(void) |
cef378aa TJ |
130 | { |
131 | struct ftdi_context * ftdi = (struct ftdi_context *)malloc(sizeof(struct ftdi_context)); | |
132 | ||
22d12cda TJ |
133 | if (ftdi == NULL) |
134 | { | |
cef378aa TJ |
135 | return NULL; |
136 | } | |
137 | ||
22d12cda TJ |
138 | if (ftdi_init(ftdi) != 0) |
139 | { | |
cef378aa | 140 | free(ftdi); |
cdf448f6 | 141 | return NULL; |
cef378aa TJ |
142 | } |
143 | ||
144 | return ftdi; | |
145 | } | |
146 | ||
147 | /** | |
1941414d TJ |
148 | Open selected channels on a chip, otherwise use first channel. |
149 | ||
150 | \param ftdi pointer to ftdi_context | |
f9d69895 | 151 | \param interface Interface to use for FT2232C/2232H/4232H chips. |
1941414d TJ |
152 | |
153 | \retval 0: all fine | |
154 | \retval -1: unknown interface | |
22a1b5c1 | 155 | \retval -2: USB device unavailable |
1c5fa36b | 156 | \retval -3: Device already open, interface can't be set in that state |
c4446c36 | 157 | */ |
0ce2f5fa | 158 | int ftdi_set_interface(struct ftdi_context *ftdi, enum ftdi_interface interface) |
c4446c36 | 159 | { |
1971c26d | 160 | if (ftdi == NULL) |
22a1b5c1 TJ |
161 | ftdi_error_return(-2, "USB device unavailable"); |
162 | ||
1c5fa36b TJ |
163 | if (ftdi->usb_dev != NULL) |
164 | { | |
165 | int check_interface = interface; | |
166 | if (check_interface == INTERFACE_ANY) | |
167 | check_interface = INTERFACE_A; | |
168 | ||
169 | if (ftdi->index != check_interface) | |
170 | ftdi_error_return(-3, "Interface can not be changed on an already open device"); | |
171 | } | |
172 | ||
22d12cda TJ |
173 | switch (interface) |
174 | { | |
175 | case INTERFACE_ANY: | |
176 | case INTERFACE_A: | |
ac0af8ec VY |
177 | ftdi->interface = 0; |
178 | ftdi->index = INTERFACE_A; | |
179 | ftdi->in_ep = 0x02; | |
180 | ftdi->out_ep = 0x81; | |
22d12cda TJ |
181 | break; |
182 | case INTERFACE_B: | |
183 | ftdi->interface = 1; | |
184 | ftdi->index = INTERFACE_B; | |
185 | ftdi->in_ep = 0x04; | |
186 | ftdi->out_ep = 0x83; | |
187 | break; | |
f9d69895 AH |
188 | case INTERFACE_C: |
189 | ftdi->interface = 2; | |
190 | ftdi->index = INTERFACE_C; | |
191 | ftdi->in_ep = 0x06; | |
192 | ftdi->out_ep = 0x85; | |
193 | break; | |
194 | case INTERFACE_D: | |
195 | ftdi->interface = 3; | |
196 | ftdi->index = INTERFACE_D; | |
197 | ftdi->in_ep = 0x08; | |
198 | ftdi->out_ep = 0x87; | |
199 | break; | |
22d12cda TJ |
200 | default: |
201 | ftdi_error_return(-1, "Unknown interface"); | |
c4446c36 TJ |
202 | } |
203 | return 0; | |
204 | } | |
948f9ada | 205 | |
1941414d TJ |
206 | /** |
207 | Deinitializes a ftdi_context. | |
4837f98a | 208 | |
1941414d | 209 | \param ftdi pointer to ftdi_context |
4837f98a | 210 | */ |
a8f46ddc TJ |
211 | void ftdi_deinit(struct ftdi_context *ftdi) |
212 | { | |
22a1b5c1 TJ |
213 | if (ftdi == NULL) |
214 | return; | |
215 | ||
f3f81007 | 216 | ftdi_usb_close_internal (ftdi); |
dff4fdb0 | 217 | |
22d12cda TJ |
218 | if (ftdi->readbuffer != NULL) |
219 | { | |
d9f0cce7 TJ |
220 | free(ftdi->readbuffer); |
221 | ftdi->readbuffer = NULL; | |
948f9ada | 222 | } |
a35aa9bd UB |
223 | |
224 | if (ftdi->eeprom != NULL) | |
225 | { | |
74e8e79d UB |
226 | if (ftdi->eeprom->manufacturer != 0) |
227 | { | |
228 | free(ftdi->eeprom->manufacturer); | |
229 | ftdi->eeprom->manufacturer = 0; | |
230 | } | |
231 | if (ftdi->eeprom->product != 0) | |
232 | { | |
233 | free(ftdi->eeprom->product); | |
234 | ftdi->eeprom->product = 0; | |
235 | } | |
236 | if (ftdi->eeprom->serial != 0) | |
237 | { | |
238 | free(ftdi->eeprom->serial); | |
239 | ftdi->eeprom->serial = 0; | |
240 | } | |
a35aa9bd UB |
241 | free(ftdi->eeprom); |
242 | ftdi->eeprom = NULL; | |
243 | } | |
3a284749 TJ |
244 | |
245 | if (ftdi->usb_ctx) | |
246 | { | |
247 | libusb_exit(ftdi->usb_ctx); | |
248 | ftdi->usb_ctx = NULL; | |
249 | } | |
a3da1d95 GE |
250 | } |
251 | ||
1941414d | 252 | /** |
cef378aa TJ |
253 | Deinitialize and free an ftdi_context. |
254 | ||
255 | \param ftdi pointer to ftdi_context | |
256 | */ | |
257 | void ftdi_free(struct ftdi_context *ftdi) | |
258 | { | |
259 | ftdi_deinit(ftdi); | |
260 | free(ftdi); | |
261 | } | |
262 | ||
263 | /** | |
1941414d TJ |
264 | Use an already open libusb device. |
265 | ||
266 | \param ftdi pointer to ftdi_context | |
579b006f | 267 | \param usb libusb libusb_device_handle to use |
4837f98a | 268 | */ |
579b006f | 269 | void ftdi_set_usbdev (struct ftdi_context *ftdi, libusb_device_handle *usb) |
a8f46ddc | 270 | { |
22a1b5c1 TJ |
271 | if (ftdi == NULL) |
272 | return; | |
273 | ||
98452d97 TJ |
274 | ftdi->usb_dev = usb; |
275 | } | |
276 | ||
0220adfa TJ |
277 | /** |
278 | * @brief Get libftdi library version | |
279 | * | |
280 | * @return ftdi_version_info Library version information | |
281 | **/ | |
bd6941fd | 282 | struct ftdi_version_info ftdi_get_library_version(void) |
0220adfa TJ |
283 | { |
284 | struct ftdi_version_info ver; | |
285 | ||
286 | ver.major = FTDI_MAJOR_VERSION; | |
287 | ver.minor = FTDI_MINOR_VERSION; | |
288 | ver.micro = FTDI_MICRO_VERSION; | |
289 | ver.version_str = FTDI_VERSION_STRING; | |
290 | ver.snapshot_str = FTDI_SNAPSHOT_VERSION; | |
291 | ||
292 | return ver; | |
293 | } | |
98452d97 | 294 | |
1941414d | 295 | /** |
7879216a UB |
296 | Finds all ftdi devices with given VID:PID on the usb bus. Creates a new |
297 | ftdi_device_list which needs to be deallocated by ftdi_list_free() after | |
298 | use. With VID:PID 0:0, search for the default devices | |
809d711d | 299 | (0x403:0x6001, 0x403:0x6010, 0x403:0x6011, 0x403:0x6014, 0x403:0x6015) |
1941414d TJ |
300 | |
301 | \param ftdi pointer to ftdi_context | |
302 | \param devlist Pointer where to store list of found devices | |
303 | \param vendor Vendor ID to search for | |
304 | \param product Product ID to search for | |
edb82cbf | 305 | |
1941414d | 306 | \retval >0: number of devices found |
1941414d | 307 | \retval -3: out of memory |
579b006f JZ |
308 | \retval -5: libusb_get_device_list() failed |
309 | \retval -6: libusb_get_device_descriptor() failed | |
edb82cbf | 310 | */ |
d2f10023 | 311 | int ftdi_usb_find_all(struct ftdi_context *ftdi, struct ftdi_device_list **devlist, int vendor, int product) |
edb82cbf TJ |
312 | { |
313 | struct ftdi_device_list **curdev; | |
579b006f JZ |
314 | libusb_device *dev; |
315 | libusb_device **devs; | |
edb82cbf | 316 | int count = 0; |
579b006f JZ |
317 | int i = 0; |
318 | ||
02212d8e | 319 | if (libusb_get_device_list(ftdi->usb_ctx, &devs) < 0) |
579b006f | 320 | ftdi_error_return(-5, "libusb_get_device_list() failed"); |
edb82cbf TJ |
321 | |
322 | curdev = devlist; | |
6db32169 | 323 | *curdev = NULL; |
579b006f JZ |
324 | |
325 | while ((dev = devs[i++]) != NULL) | |
22d12cda | 326 | { |
579b006f | 327 | struct libusb_device_descriptor desc; |
d2f10023 | 328 | |
579b006f | 329 | if (libusb_get_device_descriptor(dev, &desc) < 0) |
77377af7 | 330 | ftdi_error_return_free_device_list(-6, "libusb_get_device_descriptor() failed", devs); |
edb82cbf | 331 | |
8de26dde | 332 | if (((vendor || product) && |
74387f27 | 333 | desc.idVendor == vendor && desc.idProduct == product) || |
8de26dde | 334 | (!(vendor || product) && |
74387f27 | 335 | (desc.idVendor == 0x403) && (desc.idProduct == 0x6001 || desc.idProduct == 0x6010 |
809d711d TJ |
336 | || desc.idProduct == 0x6011 || desc.idProduct == 0x6014 |
337 | || desc.idProduct == 0x6015))) | |
579b006f JZ |
338 | { |
339 | *curdev = (struct ftdi_device_list*)malloc(sizeof(struct ftdi_device_list)); | |
340 | if (!*curdev) | |
77377af7 | 341 | ftdi_error_return_free_device_list(-3, "out of memory", devs); |
56ac0383 | 342 | |
579b006f JZ |
343 | (*curdev)->next = NULL; |
344 | (*curdev)->dev = dev; | |
0c33162c | 345 | libusb_ref_device(dev); |
579b006f JZ |
346 | curdev = &(*curdev)->next; |
347 | count++; | |
edb82cbf TJ |
348 | } |
349 | } | |
77377af7 | 350 | libusb_free_device_list(devs,1); |
edb82cbf TJ |
351 | return count; |
352 | } | |
353 | ||
1941414d TJ |
354 | /** |
355 | Frees a usb device list. | |
edb82cbf | 356 | |
1941414d | 357 | \param devlist USB device list created by ftdi_usb_find_all() |
edb82cbf | 358 | */ |
d2f10023 | 359 | void ftdi_list_free(struct ftdi_device_list **devlist) |
edb82cbf | 360 | { |
6db32169 TJ |
361 | struct ftdi_device_list *curdev, *next; |
362 | ||
22d12cda TJ |
363 | for (curdev = *devlist; curdev != NULL;) |
364 | { | |
6db32169 | 365 | next = curdev->next; |
0c33162c | 366 | libusb_unref_device(curdev->dev); |
6db32169 TJ |
367 | free(curdev); |
368 | curdev = next; | |
edb82cbf TJ |
369 | } |
370 | ||
6db32169 | 371 | *devlist = NULL; |
edb82cbf TJ |
372 | } |
373 | ||
1941414d | 374 | /** |
cef378aa TJ |
375 | Frees a usb device list. |
376 | ||
377 | \param devlist USB device list created by ftdi_usb_find_all() | |
378 | */ | |
379 | void ftdi_list_free2(struct ftdi_device_list *devlist) | |
380 | { | |
381 | ftdi_list_free(&devlist); | |
382 | } | |
383 | ||
384 | /** | |
474786c0 TJ |
385 | Return device ID strings from the usb device. |
386 | ||
387 | The parameters manufacturer, description and serial may be NULL | |
388 | or pointer to buffers to store the fetched strings. | |
389 | ||
898c34dd TJ |
390 | \note Use this function only in combination with ftdi_usb_find_all() |
391 | as it closes the internal "usb_dev" after use. | |
392 | ||
474786c0 TJ |
393 | \param ftdi pointer to ftdi_context |
394 | \param dev libusb usb_dev to use | |
395 | \param manufacturer Store manufacturer string here if not NULL | |
396 | \param mnf_len Buffer size of manufacturer string | |
397 | \param description Store product description string here if not NULL | |
398 | \param desc_len Buffer size of product description string | |
399 | \param serial Store serial string here if not NULL | |
400 | \param serial_len Buffer size of serial string | |
401 | ||
402 | \retval 0: all fine | |
403 | \retval -1: wrong arguments | |
404 | \retval -4: unable to open device | |
405 | \retval -7: get product manufacturer failed | |
406 | \retval -8: get product description failed | |
407 | \retval -9: get serial number failed | |
579b006f | 408 | \retval -11: libusb_get_device_descriptor() failed |
474786c0 | 409 | */ |
15079e78 FH |
410 | int ftdi_usb_get_strings(struct ftdi_context *ftdi, |
411 | struct libusb_device *dev, | |
412 | char *manufacturer, int mnf_len, | |
413 | char *description, int desc_len, | |
414 | char *serial, int serial_len) | |
474786c0 | 415 | { |
15079e78 | 416 | int ret; |
579b006f | 417 | |
474786c0 TJ |
418 | if ((ftdi==NULL) || (dev==NULL)) |
419 | return -1; | |
420 | ||
bc384123 | 421 | if (ftdi->usb_dev == NULL && libusb_open(dev, &ftdi->usb_dev) < 0) |
15079e78 FH |
422 | ftdi_error_return(-4, "libusb_open() failed"); |
423 | ||
424 | // ftdi->usb_dev will not be NULL when entering ftdi_usb_get_strings2(), so | |
425 | // it won't be closed either. This allows us to close it whether we actually | |
426 | // called libusb_open() up above or not. This matches the expected behavior | |
427 | // (and note) for ftdi_usb_get_strings(). | |
428 | ret = ftdi_usb_get_strings2(ftdi, dev, | |
429 | manufacturer, mnf_len, | |
430 | description, desc_len, | |
431 | serial, serial_len); | |
432 | ||
433 | // only close it if it was successful, as all other return codes close | |
434 | // before returning already. | |
435 | if (ret == 0) | |
436 | ftdi_usb_close_internal(ftdi); | |
437 | ||
438 | return ret; | |
439 | } | |
440 | ||
441 | /** | |
442 | Return device ID strings from the usb device. | |
443 | ||
444 | The parameters manufacturer, description and serial may be NULL | |
445 | or pointer to buffers to store the fetched strings. | |
446 | ||
447 | \note The old function ftdi_usb_get_strings() always closes the device. | |
448 | This version only closes the device if it was opened by it. | |
449 | ||
450 | \param ftdi pointer to ftdi_context | |
451 | \param dev libusb usb_dev to use | |
452 | \param manufacturer Store manufacturer string here if not NULL | |
453 | \param mnf_len Buffer size of manufacturer string | |
454 | \param description Store product description string here if not NULL | |
455 | \param desc_len Buffer size of product description string | |
456 | \param serial Store serial string here if not NULL | |
457 | \param serial_len Buffer size of serial string | |
458 | ||
459 | \retval 0: all fine | |
460 | \retval -1: wrong arguments | |
461 | \retval -4: unable to open device | |
462 | \retval -7: get product manufacturer failed | |
463 | \retval -8: get product description failed | |
464 | \retval -9: get serial number failed | |
465 | \retval -11: libusb_get_device_descriptor() failed | |
466 | */ | |
467 | int ftdi_usb_get_strings2(struct ftdi_context *ftdi, struct libusb_device *dev, | |
468 | char *manufacturer, int mnf_len, | |
469 | char *description, int desc_len, | |
470 | char *serial, int serial_len) | |
471 | { | |
472 | struct libusb_device_descriptor desc; | |
c45d2630 | 473 | char need_open; |
15079e78 FH |
474 | |
475 | if ((ftdi==NULL) || (dev==NULL)) | |
476 | return -1; | |
477 | ||
c45d2630 | 478 | need_open = (ftdi->usb_dev == NULL); |
15079e78 FH |
479 | if (need_open && libusb_open(dev, &ftdi->usb_dev) < 0) |
480 | ftdi_error_return(-4, "libusb_open() failed"); | |
579b006f JZ |
481 | |
482 | if (libusb_get_device_descriptor(dev, &desc) < 0) | |
483 | ftdi_error_return(-11, "libusb_get_device_descriptor() failed"); | |
474786c0 | 484 | |
22d12cda TJ |
485 | if (manufacturer != NULL) |
486 | { | |
579b006f | 487 | if (libusb_get_string_descriptor_ascii(ftdi->usb_dev, desc.iManufacturer, (unsigned char *)manufacturer, mnf_len) < 0) |
22d12cda | 488 | { |
f3f81007 | 489 | ftdi_usb_close_internal (ftdi); |
579b006f | 490 | ftdi_error_return(-7, "libusb_get_string_descriptor_ascii() failed"); |
474786c0 TJ |
491 | } |
492 | } | |
493 | ||
22d12cda TJ |
494 | if (description != NULL) |
495 | { | |
579b006f | 496 | if (libusb_get_string_descriptor_ascii(ftdi->usb_dev, desc.iProduct, (unsigned char *)description, desc_len) < 0) |
22d12cda | 497 | { |
f3f81007 | 498 | ftdi_usb_close_internal (ftdi); |
579b006f | 499 | ftdi_error_return(-8, "libusb_get_string_descriptor_ascii() failed"); |
474786c0 TJ |
500 | } |
501 | } | |
502 | ||
22d12cda TJ |
503 | if (serial != NULL) |
504 | { | |
579b006f | 505 | if (libusb_get_string_descriptor_ascii(ftdi->usb_dev, desc.iSerialNumber, (unsigned char *)serial, serial_len) < 0) |
22d12cda | 506 | { |
f3f81007 | 507 | ftdi_usb_close_internal (ftdi); |
579b006f | 508 | ftdi_error_return(-9, "libusb_get_string_descriptor_ascii() failed"); |
474786c0 TJ |
509 | } |
510 | } | |
511 | ||
15079e78 FH |
512 | if (need_open) |
513 | ftdi_usb_close_internal (ftdi); | |
474786c0 TJ |
514 | |
515 | return 0; | |
516 | } | |
517 | ||
518 | /** | |
e2f12a4f TJ |
519 | * Internal function to determine the maximum packet size. |
520 | * \param ftdi pointer to ftdi_context | |
521 | * \param dev libusb usb_dev to use | |
522 | * \retval Maximum packet size for this device | |
523 | */ | |
579b006f | 524 | static unsigned int _ftdi_determine_max_packet_size(struct ftdi_context *ftdi, libusb_device *dev) |
e2f12a4f | 525 | { |
579b006f JZ |
526 | struct libusb_device_descriptor desc; |
527 | struct libusb_config_descriptor *config0; | |
e2f12a4f TJ |
528 | unsigned int packet_size; |
529 | ||
22a1b5c1 TJ |
530 | // Sanity check |
531 | if (ftdi == NULL || dev == NULL) | |
532 | return 64; | |
533 | ||
e2f12a4f TJ |
534 | // Determine maximum packet size. Init with default value. |
535 | // New hi-speed devices from FTDI use a packet size of 512 bytes | |
536 | // but could be connected to a normal speed USB hub -> 64 bytes packet size. | |
6ae693b2 | 537 | if (ftdi->type == TYPE_2232H || ftdi->type == TYPE_4232H || ftdi->type == TYPE_232H) |
e2f12a4f TJ |
538 | packet_size = 512; |
539 | else | |
540 | packet_size = 64; | |
541 | ||
579b006f JZ |
542 | if (libusb_get_device_descriptor(dev, &desc) < 0) |
543 | return packet_size; | |
544 | ||
545 | if (libusb_get_config_descriptor(dev, 0, &config0) < 0) | |
546 | return packet_size; | |
e2f12a4f | 547 | |
579b006f JZ |
548 | if (desc.bNumConfigurations > 0) |
549 | { | |
550 | if (ftdi->interface < config0->bNumInterfaces) | |
e2f12a4f | 551 | { |
579b006f | 552 | struct libusb_interface interface = config0->interface[ftdi->interface]; |
e2f12a4f TJ |
553 | if (interface.num_altsetting > 0) |
554 | { | |
579b006f | 555 | struct libusb_interface_descriptor descriptor = interface.altsetting[0]; |
e2f12a4f TJ |
556 | if (descriptor.bNumEndpoints > 0) |
557 | { | |
558 | packet_size = descriptor.endpoint[0].wMaxPacketSize; | |
559 | } | |
560 | } | |
561 | } | |
562 | } | |
563 | ||
579b006f | 564 | libusb_free_config_descriptor (config0); |
e2f12a4f TJ |
565 | return packet_size; |
566 | } | |
567 | ||
568 | /** | |
418aaa72 | 569 | Opens a ftdi device given by an usb_device. |
7b18bef6 | 570 | |
1941414d TJ |
571 | \param ftdi pointer to ftdi_context |
572 | \param dev libusb usb_dev to use | |
573 | ||
574 | \retval 0: all fine | |
23b1798d | 575 | \retval -3: unable to config device |
1941414d TJ |
576 | \retval -4: unable to open device |
577 | \retval -5: unable to claim device | |
578 | \retval -6: reset failed | |
579 | \retval -7: set baudrate failed | |
22a1b5c1 | 580 | \retval -8: ftdi context invalid |
579b006f JZ |
581 | \retval -9: libusb_get_device_descriptor() failed |
582 | \retval -10: libusb_get_config_descriptor() failed | |
e375e6cb | 583 | \retval -11: libusb_detach_kernel_driver() failed |
579b006f | 584 | \retval -12: libusb_get_configuration() failed |
7b18bef6 | 585 | */ |
579b006f | 586 | int ftdi_usb_open_dev(struct ftdi_context *ftdi, libusb_device *dev) |
7b18bef6 | 587 | { |
579b006f JZ |
588 | struct libusb_device_descriptor desc; |
589 | struct libusb_config_descriptor *config0; | |
43aee24f | 590 | int cfg, cfg0, detach_errno = 0; |
579b006f | 591 | |
22a1b5c1 TJ |
592 | if (ftdi == NULL) |
593 | ftdi_error_return(-8, "ftdi context invalid"); | |
594 | ||
579b006f JZ |
595 | if (libusb_open(dev, &ftdi->usb_dev) < 0) |
596 | ftdi_error_return(-4, "libusb_open() failed"); | |
597 | ||
598 | if (libusb_get_device_descriptor(dev, &desc) < 0) | |
599 | ftdi_error_return(-9, "libusb_get_device_descriptor() failed"); | |
600 | ||
601 | if (libusb_get_config_descriptor(dev, 0, &config0) < 0) | |
602 | ftdi_error_return(-10, "libusb_get_config_descriptor() failed"); | |
603 | cfg0 = config0->bConfigurationValue; | |
604 | libusb_free_config_descriptor (config0); | |
d2f10023 | 605 | |
22592e17 | 606 | // Try to detach ftdi_sio kernel module. |
22592e17 TJ |
607 | // |
608 | // The return code is kept in a separate variable and only parsed | |
609 | // if usb_set_configuration() or usb_claim_interface() fails as the | |
610 | // detach operation might be denied and everything still works fine. | |
611 | // Likely scenario is a static ftdi_sio kernel module. | |
a3d86bdb TJ |
612 | if (ftdi->module_detach_mode == AUTO_DETACH_SIO_MODULE) |
613 | { | |
614 | if (libusb_detach_kernel_driver(ftdi->usb_dev, ftdi->interface) !=0) | |
615 | detach_errno = errno; | |
616 | } | |
d2f10023 | 617 | |
579b006f JZ |
618 | if (libusb_get_configuration (ftdi->usb_dev, &cfg) < 0) |
619 | ftdi_error_return(-12, "libusb_get_configuration () failed"); | |
b57aedfd GE |
620 | // set configuration (needed especially for windows) |
621 | // tolerate EBUSY: one device with one configuration, but two interfaces | |
622 | // and libftdi sessions to both interfaces (e.g. FT2232) | |
579b006f | 623 | if (desc.bNumConfigurations > 0 && cfg != cfg0) |
b57aedfd | 624 | { |
579b006f | 625 | if (libusb_set_configuration(ftdi->usb_dev, cfg0) < 0) |
22d12cda | 626 | { |
a56ba2bd | 627 | ftdi_usb_close_internal (ftdi); |
56ac0383 | 628 | if (detach_errno == EPERM) |
43aee24f UB |
629 | { |
630 | ftdi_error_return(-8, "inappropriate permissions on device!"); | |
631 | } | |
632 | else | |
633 | { | |
c16b162d | 634 | ftdi_error_return(-3, "unable to set usb configuration. Make sure the default FTDI driver is not in use"); |
43aee24f | 635 | } |
23b1798d TJ |
636 | } |
637 | } | |
638 | ||
579b006f | 639 | if (libusb_claim_interface(ftdi->usb_dev, ftdi->interface) < 0) |
22d12cda | 640 | { |
f3f81007 | 641 | ftdi_usb_close_internal (ftdi); |
56ac0383 | 642 | if (detach_errno == EPERM) |
43aee24f UB |
643 | { |
644 | ftdi_error_return(-8, "inappropriate permissions on device!"); | |
645 | } | |
646 | else | |
647 | { | |
c16b162d | 648 | ftdi_error_return(-5, "unable to claim usb device. Make sure the default FTDI driver is not in use"); |
43aee24f | 649 | } |
7b18bef6 TJ |
650 | } |
651 | ||
22d12cda TJ |
652 | if (ftdi_usb_reset (ftdi) != 0) |
653 | { | |
f3f81007 | 654 | ftdi_usb_close_internal (ftdi); |
7b18bef6 TJ |
655 | ftdi_error_return(-6, "ftdi_usb_reset failed"); |
656 | } | |
657 | ||
7b18bef6 TJ |
658 | // Try to guess chip type |
659 | // Bug in the BM type chips: bcdDevice is 0x200 for serial == 0 | |
579b006f | 660 | if (desc.bcdDevice == 0x400 || (desc.bcdDevice == 0x200 |
56ac0383 | 661 | && desc.iSerialNumber == 0)) |
7b18bef6 | 662 | ftdi->type = TYPE_BM; |
579b006f | 663 | else if (desc.bcdDevice == 0x200) |
7b18bef6 | 664 | ftdi->type = TYPE_AM; |
579b006f | 665 | else if (desc.bcdDevice == 0x500) |
7b18bef6 | 666 | ftdi->type = TYPE_2232C; |
579b006f | 667 | else if (desc.bcdDevice == 0x600) |
cb6250fa | 668 | ftdi->type = TYPE_R; |
579b006f | 669 | else if (desc.bcdDevice == 0x700) |
0beb9686 | 670 | ftdi->type = TYPE_2232H; |
579b006f | 671 | else if (desc.bcdDevice == 0x800) |
0beb9686 | 672 | ftdi->type = TYPE_4232H; |
c7e4c09e UB |
673 | else if (desc.bcdDevice == 0x900) |
674 | ftdi->type = TYPE_232H; | |
2f80efc2 NP |
675 | else if (desc.bcdDevice == 0x1000) |
676 | ftdi->type = TYPE_230X; | |
7b18bef6 | 677 | |
e2f12a4f TJ |
678 | // Determine maximum packet size |
679 | ftdi->max_packet_size = _ftdi_determine_max_packet_size(ftdi, dev); | |
680 | ||
ef6f4838 TE |
681 | if (ftdi_set_baudrate (ftdi, 9600) != 0) |
682 | { | |
683 | ftdi_usb_close_internal (ftdi); | |
684 | ftdi_error_return(-7, "set baudrate failed"); | |
685 | } | |
686 | ||
7b18bef6 TJ |
687 | ftdi_error_return(0, "all fine"); |
688 | } | |
689 | ||
1941414d TJ |
690 | /** |
691 | Opens the first device with a given vendor and product ids. | |
692 | ||
693 | \param ftdi pointer to ftdi_context | |
694 | \param vendor Vendor ID | |
695 | \param product Product ID | |
696 | ||
9bec2387 | 697 | \retval same as ftdi_usb_open_desc() |
1941414d | 698 | */ |
edb82cbf TJ |
699 | int ftdi_usb_open(struct ftdi_context *ftdi, int vendor, int product) |
700 | { | |
701 | return ftdi_usb_open_desc(ftdi, vendor, product, NULL, NULL); | |
702 | } | |
703 | ||
1941414d TJ |
704 | /** |
705 | Opens the first device with a given, vendor id, product id, | |
706 | description and serial. | |
707 | ||
708 | \param ftdi pointer to ftdi_context | |
709 | \param vendor Vendor ID | |
710 | \param product Product ID | |
711 | \param description Description to search for. Use NULL if not needed. | |
712 | \param serial Serial to search for. Use NULL if not needed. | |
713 | ||
714 | \retval 0: all fine | |
1941414d TJ |
715 | \retval -3: usb device not found |
716 | \retval -4: unable to open device | |
717 | \retval -5: unable to claim device | |
718 | \retval -6: reset failed | |
719 | \retval -7: set baudrate failed | |
720 | \retval -8: get product description failed | |
721 | \retval -9: get serial number failed | |
579b006f JZ |
722 | \retval -12: libusb_get_device_list() failed |
723 | \retval -13: libusb_get_device_descriptor() failed | |
a3da1d95 | 724 | */ |
04e1ea0a | 725 | int ftdi_usb_open_desc(struct ftdi_context *ftdi, int vendor, int product, |
a8f46ddc TJ |
726 | const char* description, const char* serial) |
727 | { | |
5ebbdab9 GE |
728 | return ftdi_usb_open_desc_index(ftdi,vendor,product,description,serial,0); |
729 | } | |
730 | ||
731 | /** | |
732 | Opens the index-th device with a given, vendor id, product id, | |
733 | description and serial. | |
734 | ||
735 | \param ftdi pointer to ftdi_context | |
736 | \param vendor Vendor ID | |
737 | \param product Product ID | |
738 | \param description Description to search for. Use NULL if not needed. | |
739 | \param serial Serial to search for. Use NULL if not needed. | |
740 | \param index Number of matching device to open if there are more than one, starts with 0. | |
741 | ||
742 | \retval 0: all fine | |
743 | \retval -1: usb_find_busses() failed | |
744 | \retval -2: usb_find_devices() failed | |
745 | \retval -3: usb device not found | |
746 | \retval -4: unable to open device | |
747 | \retval -5: unable to claim device | |
748 | \retval -6: reset failed | |
749 | \retval -7: set baudrate failed | |
750 | \retval -8: get product description failed | |
751 | \retval -9: get serial number failed | |
752 | \retval -10: unable to close device | |
22a1b5c1 | 753 | \retval -11: ftdi context invalid |
4fe1a3f0 | 754 | \retval -12: libusb_get_device_list() failed |
5ebbdab9 GE |
755 | */ |
756 | int ftdi_usb_open_desc_index(struct ftdi_context *ftdi, int vendor, int product, | |
56ac0383 | 757 | const char* description, const char* serial, unsigned int index) |
5ebbdab9 | 758 | { |
579b006f JZ |
759 | libusb_device *dev; |
760 | libusb_device **devs; | |
c3d95b87 | 761 | char string[256]; |
579b006f | 762 | int i = 0; |
98452d97 | 763 | |
22a1b5c1 TJ |
764 | if (ftdi == NULL) |
765 | ftdi_error_return(-11, "ftdi context invalid"); | |
766 | ||
02212d8e | 767 | if (libusb_get_device_list(ftdi->usb_ctx, &devs) < 0) |
99650502 UB |
768 | ftdi_error_return(-12, "libusb_get_device_list() failed"); |
769 | ||
579b006f | 770 | while ((dev = devs[i++]) != NULL) |
22d12cda | 771 | { |
579b006f | 772 | struct libusb_device_descriptor desc; |
99650502 | 773 | int res; |
579b006f JZ |
774 | |
775 | if (libusb_get_device_descriptor(dev, &desc) < 0) | |
99650502 | 776 | ftdi_error_return_free_device_list(-13, "libusb_get_device_descriptor() failed", devs); |
579b006f JZ |
777 | |
778 | if (desc.idVendor == vendor && desc.idProduct == product) | |
22d12cda | 779 | { |
579b006f | 780 | if (libusb_open(dev, &ftdi->usb_dev) < 0) |
99650502 | 781 | ftdi_error_return_free_device_list(-4, "usb_open() failed", devs); |
c3d95b87 | 782 | |
579b006f JZ |
783 | if (description != NULL) |
784 | { | |
785 | if (libusb_get_string_descriptor_ascii(ftdi->usb_dev, desc.iProduct, (unsigned char *)string, sizeof(string)) < 0) | |
22d12cda | 786 | { |
d4afae5f | 787 | ftdi_usb_close_internal (ftdi); |
99650502 | 788 | ftdi_error_return_free_device_list(-8, "unable to fetch product description", devs); |
a8f46ddc | 789 | } |
579b006f | 790 | if (strncmp(string, description, sizeof(string)) != 0) |
22d12cda | 791 | { |
d4afae5f | 792 | ftdi_usb_close_internal (ftdi); |
579b006f | 793 | continue; |
a8f46ddc | 794 | } |
579b006f JZ |
795 | } |
796 | if (serial != NULL) | |
797 | { | |
798 | if (libusb_get_string_descriptor_ascii(ftdi->usb_dev, desc.iSerialNumber, (unsigned char *)string, sizeof(string)) < 0) | |
799 | { | |
800 | ftdi_usb_close_internal (ftdi); | |
99650502 | 801 | ftdi_error_return_free_device_list(-9, "unable to fetch serial number", devs); |
579b006f JZ |
802 | } |
803 | if (strncmp(string, serial, sizeof(string)) != 0) | |
804 | { | |
805 | ftdi_usb_close_internal (ftdi); | |
806 | continue; | |
807 | } | |
808 | } | |
98452d97 | 809 | |
579b006f | 810 | ftdi_usb_close_internal (ftdi); |
d2f10023 | 811 | |
56ac0383 TJ |
812 | if (index > 0) |
813 | { | |
814 | index--; | |
815 | continue; | |
816 | } | |
5ebbdab9 | 817 | |
99650502 UB |
818 | res = ftdi_usb_open_dev(ftdi, dev); |
819 | libusb_free_device_list(devs,1); | |
814e69f5 MD |
820 | return res; |
821 | } | |
822 | } | |
823 | ||
824 | // device not found | |
825 | ftdi_error_return_free_device_list(-3, "device not found", devs); | |
826 | } | |
827 | ||
828 | /** | |
30ea3095 | 829 | Opens the device at a given USB bus and device address. |
814e69f5 MD |
830 | |
831 | \param ftdi pointer to ftdi_context | |
832 | \param bus Bus number | |
30ea3095 | 833 | \param addr Device address |
814e69f5 MD |
834 | |
835 | \retval 0: all fine | |
836 | \retval -1: usb_find_busses() failed | |
837 | \retval -2: usb_find_devices() failed | |
838 | \retval -3: usb device not found | |
839 | \retval -4: unable to open device | |
840 | \retval -5: unable to claim device | |
841 | \retval -6: reset failed | |
842 | \retval -7: set baudrate failed | |
843 | \retval -8: get product description failed | |
844 | \retval -9: get serial number failed | |
845 | \retval -10: unable to close device | |
846 | \retval -11: ftdi context invalid | |
4fe1a3f0 | 847 | \retval -12: libusb_get_device_list() failed |
814e69f5 | 848 | */ |
30ea3095 | 849 | int ftdi_usb_open_bus_addr(struct ftdi_context *ftdi, uint8_t bus, uint8_t addr) |
814e69f5 MD |
850 | { |
851 | libusb_device *dev; | |
852 | libusb_device **devs; | |
853 | int i = 0; | |
854 | ||
855 | if (ftdi == NULL) | |
856 | ftdi_error_return(-11, "ftdi context invalid"); | |
857 | ||
858 | if (libusb_get_device_list(ftdi->usb_ctx, &devs) < 0) | |
859 | ftdi_error_return(-12, "libusb_get_device_list() failed"); | |
860 | ||
861 | while ((dev = devs[i++]) != NULL) | |
862 | { | |
30ea3095 | 863 | if (libusb_get_bus_number(dev) == bus && libusb_get_device_address(dev) == addr) |
814e69f5 MD |
864 | { |
865 | int res; | |
866 | res = ftdi_usb_open_dev(ftdi, dev); | |
867 | libusb_free_device_list(devs,1); | |
99650502 | 868 | return res; |
98452d97 | 869 | } |
98452d97 | 870 | } |
a3da1d95 | 871 | |
98452d97 | 872 | // device not found |
99650502 | 873 | ftdi_error_return_free_device_list(-3, "device not found", devs); |
a3da1d95 GE |
874 | } |
875 | ||
1941414d | 876 | /** |
5ebbdab9 GE |
877 | Opens the ftdi-device described by a description-string. |
878 | Intended to be used for parsing a device-description given as commandline argument. | |
879 | ||
880 | \param ftdi pointer to ftdi_context | |
881 | \param description NULL-terminated description-string, using this format: | |
882 | \li <tt>d:\<devicenode></tt> path of bus and device-node (e.g. "003/001") within usb device tree (usually at /proc/bus/usb/) | |
883 | \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") | |
884 | \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 | |
885 | \li <tt>s:\<vendor>:\<product>:\<serial></tt> first device with given vendor id, product id and serial string | |
886 | ||
887 | \note The description format may be extended in later versions. | |
888 | ||
889 | \retval 0: all fine | |
579b006f | 890 | \retval -2: libusb_get_device_list() failed |
5ebbdab9 GE |
891 | \retval -3: usb device not found |
892 | \retval -4: unable to open device | |
893 | \retval -5: unable to claim device | |
894 | \retval -6: reset failed | |
895 | \retval -7: set baudrate failed | |
896 | \retval -8: get product description failed | |
897 | \retval -9: get serial number failed | |
898 | \retval -10: unable to close device | |
899 | \retval -11: illegal description format | |
22a1b5c1 | 900 | \retval -12: ftdi context invalid |
5ebbdab9 GE |
901 | */ |
902 | int ftdi_usb_open_string(struct ftdi_context *ftdi, const char* description) | |
903 | { | |
22a1b5c1 TJ |
904 | if (ftdi == NULL) |
905 | ftdi_error_return(-12, "ftdi context invalid"); | |
906 | ||
5ebbdab9 GE |
907 | if (description[0] == 0 || description[1] != ':') |
908 | ftdi_error_return(-11, "illegal description format"); | |
909 | ||
910 | if (description[0] == 'd') | |
911 | { | |
579b006f JZ |
912 | libusb_device *dev; |
913 | libusb_device **devs; | |
56ac0383 TJ |
914 | unsigned int bus_number, device_address; |
915 | int i = 0; | |
579b006f | 916 | |
56ac0383 TJ |
917 | if (libusb_get_device_list(ftdi->usb_ctx, &devs) < 0) |
918 | ftdi_error_return(-2, "libusb_get_device_list() failed"); | |
5ebbdab9 | 919 | |
579b006f JZ |
920 | /* XXX: This doesn't handle symlinks/odd paths/etc... */ |
921 | if (sscanf (description + 2, "%u/%u", &bus_number, &device_address) != 2) | |
56ac0383 | 922 | ftdi_error_return_free_device_list(-11, "illegal description format", devs); |
5ebbdab9 | 923 | |
56ac0383 | 924 | while ((dev = devs[i++]) != NULL) |
5ebbdab9 | 925 | { |
99650502 | 926 | int ret; |
56ac0383 TJ |
927 | if (bus_number == libusb_get_bus_number (dev) |
928 | && device_address == libusb_get_device_address (dev)) | |
99650502 UB |
929 | { |
930 | ret = ftdi_usb_open_dev(ftdi, dev); | |
931 | libusb_free_device_list(devs,1); | |
932 | return ret; | |
933 | } | |
5ebbdab9 GE |
934 | } |
935 | ||
936 | // device not found | |
99650502 | 937 | ftdi_error_return_free_device_list(-3, "device not found", devs); |
5ebbdab9 GE |
938 | } |
939 | else if (description[0] == 'i' || description[0] == 's') | |
940 | { | |
941 | unsigned int vendor; | |
942 | unsigned int product; | |
943 | unsigned int index=0; | |
0e6cf62b | 944 | const char *serial=NULL; |
5ebbdab9 GE |
945 | const char *startp, *endp; |
946 | ||
947 | errno=0; | |
948 | startp=description+2; | |
949 | vendor=strtoul((char*)startp,(char**)&endp,0); | |
950 | if (*endp != ':' || endp == startp || errno != 0) | |
951 | ftdi_error_return(-11, "illegal description format"); | |
952 | ||
953 | startp=endp+1; | |
954 | product=strtoul((char*)startp,(char**)&endp,0); | |
955 | if (endp == startp || errno != 0) | |
956 | ftdi_error_return(-11, "illegal description format"); | |
957 | ||
958 | if (description[0] == 'i' && *endp != 0) | |
959 | { | |
960 | /* optional index field in i-mode */ | |
961 | if (*endp != ':') | |
962 | ftdi_error_return(-11, "illegal description format"); | |
963 | ||
964 | startp=endp+1; | |
965 | index=strtoul((char*)startp,(char**)&endp,0); | |
966 | if (*endp != 0 || endp == startp || errno != 0) | |
967 | ftdi_error_return(-11, "illegal description format"); | |
968 | } | |
969 | if (description[0] == 's') | |
970 | { | |
971 | if (*endp != ':') | |
972 | ftdi_error_return(-11, "illegal description format"); | |
973 | ||
974 | /* rest of the description is the serial */ | |
975 | serial=endp+1; | |
976 | } | |
977 | ||
978 | return ftdi_usb_open_desc_index(ftdi, vendor, product, NULL, serial, index); | |
979 | } | |
980 | else | |
981 | { | |
982 | ftdi_error_return(-11, "illegal description format"); | |
983 | } | |
984 | } | |
985 | ||
986 | /** | |
1941414d | 987 | Resets the ftdi device. |
a3da1d95 | 988 | |
1941414d TJ |
989 | \param ftdi pointer to ftdi_context |
990 | ||
991 | \retval 0: all fine | |
992 | \retval -1: FTDI reset failed | |
22a1b5c1 | 993 | \retval -2: USB device unavailable |
4837f98a | 994 | */ |
edb82cbf | 995 | int ftdi_usb_reset(struct ftdi_context *ftdi) |
a8f46ddc | 996 | { |
22a1b5c1 TJ |
997 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
998 | ftdi_error_return(-2, "USB device unavailable"); | |
999 | ||
579b006f JZ |
1000 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
1001 | SIO_RESET_REQUEST, SIO_RESET_SIO, | |
1002 | ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0) | |
22d12cda | 1003 | ftdi_error_return(-1,"FTDI reset failed"); |
c3d95b87 | 1004 | |
545820ce | 1005 | // Invalidate data in the readbuffer |
bfcee05b TJ |
1006 | ftdi->readbuffer_offset = 0; |
1007 | ftdi->readbuffer_remaining = 0; | |
1008 | ||
a3da1d95 GE |
1009 | return 0; |
1010 | } | |
1011 | ||
1941414d | 1012 | /** |
1189b11a | 1013 | Clears the read buffer on the chip and the internal read buffer. |
1941414d TJ |
1014 | |
1015 | \param ftdi pointer to ftdi_context | |
4837f98a | 1016 | |
1941414d | 1017 | \retval 0: all fine |
1189b11a | 1018 | \retval -1: read buffer purge failed |
22a1b5c1 | 1019 | \retval -2: USB device unavailable |
4837f98a | 1020 | */ |
1189b11a | 1021 | int ftdi_usb_purge_rx_buffer(struct ftdi_context *ftdi) |
a8f46ddc | 1022 | { |
22a1b5c1 TJ |
1023 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
1024 | ftdi_error_return(-2, "USB device unavailable"); | |
1025 | ||
579b006f JZ |
1026 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
1027 | SIO_RESET_REQUEST, SIO_RESET_PURGE_RX, | |
1028 | ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0) | |
c3d95b87 TJ |
1029 | ftdi_error_return(-1, "FTDI purge of RX buffer failed"); |
1030 | ||
545820ce | 1031 | // Invalidate data in the readbuffer |
bfcee05b TJ |
1032 | ftdi->readbuffer_offset = 0; |
1033 | ftdi->readbuffer_remaining = 0; | |
a60be878 | 1034 | |
1189b11a TJ |
1035 | return 0; |
1036 | } | |
1037 | ||
1038 | /** | |
1039 | Clears the write buffer on the chip. | |
1040 | ||
1041 | \param ftdi pointer to ftdi_context | |
1042 | ||
1043 | \retval 0: all fine | |
1044 | \retval -1: write buffer purge failed | |
22a1b5c1 | 1045 | \retval -2: USB device unavailable |
1189b11a TJ |
1046 | */ |
1047 | int ftdi_usb_purge_tx_buffer(struct ftdi_context *ftdi) | |
1048 | { | |
22a1b5c1 TJ |
1049 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
1050 | ftdi_error_return(-2, "USB device unavailable"); | |
1051 | ||
579b006f JZ |
1052 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
1053 | SIO_RESET_REQUEST, SIO_RESET_PURGE_TX, | |
1054 | ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0) | |
1189b11a TJ |
1055 | ftdi_error_return(-1, "FTDI purge of TX buffer failed"); |
1056 | ||
1057 | return 0; | |
1058 | } | |
1059 | ||
1060 | /** | |
1061 | Clears the buffers on the chip and the internal read buffer. | |
1062 | ||
1063 | \param ftdi pointer to ftdi_context | |
1064 | ||
1065 | \retval 0: all fine | |
1066 | \retval -1: read buffer purge failed | |
1067 | \retval -2: write buffer purge failed | |
22a1b5c1 | 1068 | \retval -3: USB device unavailable |
1189b11a TJ |
1069 | */ |
1070 | int ftdi_usb_purge_buffers(struct ftdi_context *ftdi) | |
1071 | { | |
1072 | int result; | |
1073 | ||
22a1b5c1 TJ |
1074 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
1075 | ftdi_error_return(-3, "USB device unavailable"); | |
1076 | ||
1189b11a | 1077 | result = ftdi_usb_purge_rx_buffer(ftdi); |
5a2b51cb | 1078 | if (result < 0) |
1189b11a TJ |
1079 | return -1; |
1080 | ||
1081 | result = ftdi_usb_purge_tx_buffer(ftdi); | |
5a2b51cb | 1082 | if (result < 0) |
1189b11a | 1083 | return -2; |
545820ce | 1084 | |
a60be878 TJ |
1085 | return 0; |
1086 | } | |
a3da1d95 | 1087 | |
f3f81007 TJ |
1088 | |
1089 | ||
1941414d TJ |
1090 | /** |
1091 | Closes the ftdi device. Call ftdi_deinit() if you're cleaning up. | |
1092 | ||
1093 | \param ftdi pointer to ftdi_context | |
1094 | ||
1095 | \retval 0: all fine | |
1096 | \retval -1: usb_release failed | |
22a1b5c1 | 1097 | \retval -3: ftdi context invalid |
a3da1d95 | 1098 | */ |
a8f46ddc TJ |
1099 | int ftdi_usb_close(struct ftdi_context *ftdi) |
1100 | { | |
a3da1d95 GE |
1101 | int rtn = 0; |
1102 | ||
22a1b5c1 TJ |
1103 | if (ftdi == NULL) |
1104 | ftdi_error_return(-3, "ftdi context invalid"); | |
1105 | ||
dff4fdb0 | 1106 | if (ftdi->usb_dev != NULL) |
579b006f | 1107 | if (libusb_release_interface(ftdi->usb_dev, ftdi->interface) < 0) |
dff4fdb0 | 1108 | rtn = -1; |
98452d97 | 1109 | |
579b006f | 1110 | ftdi_usb_close_internal (ftdi); |
98452d97 | 1111 | |
a3da1d95 GE |
1112 | return rtn; |
1113 | } | |
1114 | ||
74387f27 | 1115 | /* ftdi_to_clkbits_AM For the AM device, convert a requested baudrate |
f15786e4 | 1116 | to encoded divisor and the achievable baudrate |
53ad271d | 1117 | Function is only used internally |
b5ec1820 | 1118 | \internal |
f15786e4 UB |
1119 | |
1120 | See AN120 | |
1121 | clk/1 -> 0 | |
1122 | clk/1.5 -> 1 | |
1123 | clk/2 -> 2 | |
1124 | From /2, 0.125/ 0.25 and 0.5 steps may be taken | |
1125 | The fractional part has frac_code encoding | |
53ad271d | 1126 | */ |
f15786e4 UB |
1127 | static int ftdi_to_clkbits_AM(int baudrate, unsigned long *encoded_divisor) |
1128 | ||
a8f46ddc | 1129 | { |
f15786e4 | 1130 | static const char frac_code[8] = {0, 3, 2, 4, 1, 5, 6, 7}; |
53ad271d TJ |
1131 | static const char am_adjust_up[8] = {0, 0, 0, 1, 0, 3, 2, 1}; |
1132 | static const char am_adjust_dn[8] = {0, 0, 0, 1, 0, 1, 2, 3}; | |
53ad271d | 1133 | int divisor, best_divisor, best_baud, best_baud_diff; |
f15786e4 | 1134 | int i; |
32e2d8b0 | 1135 | divisor = 24000000 / baudrate; |
53ad271d | 1136 | |
f15786e4 UB |
1137 | // Round down to supported fraction (AM only) |
1138 | divisor -= am_adjust_dn[divisor & 7]; | |
53ad271d TJ |
1139 | |
1140 | // Try this divisor and the one above it (because division rounds down) | |
1141 | best_divisor = 0; | |
1142 | best_baud = 0; | |
1143 | best_baud_diff = 0; | |
22d12cda TJ |
1144 | for (i = 0; i < 2; i++) |
1145 | { | |
53ad271d TJ |
1146 | int try_divisor = divisor + i; |
1147 | int baud_estimate; | |
1148 | int baud_diff; | |
1149 | ||
1150 | // Round up to supported divisor value | |
22d12cda TJ |
1151 | if (try_divisor <= 8) |
1152 | { | |
53ad271d TJ |
1153 | // Round up to minimum supported divisor |
1154 | try_divisor = 8; | |
22d12cda | 1155 | } |
22d12cda TJ |
1156 | else if (divisor < 16) |
1157 | { | |
53ad271d TJ |
1158 | // AM doesn't support divisors 9 through 15 inclusive |
1159 | try_divisor = 16; | |
22d12cda TJ |
1160 | } |
1161 | else | |
1162 | { | |
f15786e4 UB |
1163 | // Round up to supported fraction (AM only) |
1164 | try_divisor += am_adjust_up[try_divisor & 7]; | |
1165 | if (try_divisor > 0x1FFF8) | |
22d12cda | 1166 | { |
f15786e4 UB |
1167 | // Round down to maximum supported divisor value (for AM) |
1168 | try_divisor = 0x1FFF8; | |
53ad271d TJ |
1169 | } |
1170 | } | |
1171 | // Get estimated baud rate (to nearest integer) | |
1172 | baud_estimate = (24000000 + (try_divisor / 2)) / try_divisor; | |
1173 | // Get absolute difference from requested baud rate | |
22d12cda TJ |
1174 | if (baud_estimate < baudrate) |
1175 | { | |
53ad271d | 1176 | baud_diff = baudrate - baud_estimate; |
22d12cda TJ |
1177 | } |
1178 | else | |
1179 | { | |
53ad271d TJ |
1180 | baud_diff = baud_estimate - baudrate; |
1181 | } | |
22d12cda TJ |
1182 | if (i == 0 || baud_diff < best_baud_diff) |
1183 | { | |
53ad271d TJ |
1184 | // Closest to requested baud rate so far |
1185 | best_divisor = try_divisor; | |
1186 | best_baud = baud_estimate; | |
1187 | best_baud_diff = baud_diff; | |
22d12cda TJ |
1188 | if (baud_diff == 0) |
1189 | { | |
53ad271d TJ |
1190 | // Spot on! No point trying |
1191 | break; | |
1192 | } | |
1193 | } | |
1194 | } | |
1195 | // Encode the best divisor value | |
f15786e4 | 1196 | *encoded_divisor = (best_divisor >> 3) | (frac_code[best_divisor & 7] << 14); |
53ad271d | 1197 | // Deal with special cases for encoded value |
f15786e4 | 1198 | if (*encoded_divisor == 1) |
22d12cda | 1199 | { |
f15786e4 | 1200 | *encoded_divisor = 0; // 3000000 baud |
22d12cda | 1201 | } |
f15786e4 UB |
1202 | else if (*encoded_divisor == 0x4001) |
1203 | { | |
1204 | *encoded_divisor = 1; // 2000000 baud (BM only) | |
1205 | } | |
1206 | return best_baud; | |
1207 | } | |
1208 | ||
1209 | /* ftdi_to_clkbits Convert a requested baudrate for a given system clock and predivisor | |
1210 | to encoded divisor and the achievable baudrate | |
1211 | Function is only used internally | |
1212 | \internal | |
1213 | ||
1214 | See AN120 | |
1215 | clk/1 -> 0 | |
1216 | clk/1.5 -> 1 | |
1217 | clk/2 -> 2 | |
1218 | From /2, 0.125 steps may be taken. | |
1219 | The fractional part has frac_code encoding | |
9956d428 UB |
1220 | |
1221 | value[13:0] of value is the divisor | |
1222 | index[9] mean 12 MHz Base(120 MHz/10) rate versus 3 MHz (48 MHz/16) else | |
1223 | ||
1224 | H Type have all features above with | |
1225 | {index[8],value[15:14]} is the encoded subdivisor | |
1226 | ||
74387f27 | 1227 | FT232R, FT2232 and FT232BM have no option for 12 MHz and with |
9956d428 UB |
1228 | {index[0],value[15:14]} is the encoded subdivisor |
1229 | ||
1230 | AM Type chips have only four fractional subdivisors at value[15:14] | |
1231 | for subdivisors 0, 0.5, 0.25, 0.125 | |
f15786e4 UB |
1232 | */ |
1233 | static int ftdi_to_clkbits(int baudrate, unsigned int clk, int clk_div, unsigned long *encoded_divisor) | |
1234 | { | |
1235 | static const char frac_code[8] = {0, 3, 2, 4, 1, 5, 6, 7}; | |
1236 | int best_baud = 0; | |
1237 | int divisor, best_divisor; | |
1238 | if (baudrate >= clk/clk_div) | |
1239 | { | |
1240 | *encoded_divisor = 0; | |
1241 | best_baud = clk/clk_div; | |
1242 | } | |
1243 | else if (baudrate >= clk/(clk_div + clk_div/2)) | |
1244 | { | |
1245 | *encoded_divisor = 1; | |
1246 | best_baud = clk/(clk_div + clk_div/2); | |
1247 | } | |
1248 | else if (baudrate >= clk/(2*clk_div)) | |
1249 | { | |
1250 | *encoded_divisor = 2; | |
1251 | best_baud = clk/(2*clk_div); | |
1252 | } | |
1253 | else | |
1254 | { | |
1255 | /* We divide by 16 to have 3 fractional bits and one bit for rounding */ | |
1256 | divisor = clk*16/clk_div / baudrate; | |
1257 | if (divisor & 1) /* Decide if to round up or down*/ | |
1258 | best_divisor = divisor /2 +1; | |
1259 | else | |
1260 | best_divisor = divisor/2; | |
1261 | if(best_divisor > 0x20000) | |
1262 | best_divisor = 0x1ffff; | |
aae08071 UB |
1263 | best_baud = clk*16/clk_div/best_divisor; |
1264 | if (best_baud & 1) /* Decide if to round up or down*/ | |
1265 | best_baud = best_baud /2 +1; | |
1266 | else | |
1267 | best_baud = best_baud /2; | |
f15786e4 UB |
1268 | *encoded_divisor = (best_divisor >> 3) | (frac_code[best_divisor & 0x7] << 14); |
1269 | } | |
1270 | return best_baud; | |
74387f27 | 1271 | } |
f15786e4 UB |
1272 | /** |
1273 | ftdi_convert_baudrate returns nearest supported baud rate to that requested. | |
1274 | Function is only used internally | |
1275 | \internal | |
1276 | */ | |
1277 | static int ftdi_convert_baudrate(int baudrate, struct ftdi_context *ftdi, | |
1278 | unsigned short *value, unsigned short *index) | |
1279 | { | |
1280 | int best_baud; | |
1281 | unsigned long encoded_divisor; | |
1282 | ||
1283 | if (baudrate <= 0) | |
1284 | { | |
1285 | // Return error | |
1286 | return -1; | |
1287 | } | |
1288 | ||
1289 | #define H_CLK 120000000 | |
1290 | #define C_CLK 48000000 | |
6ae693b2 | 1291 | if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H) || (ftdi->type == TYPE_232H)) |
f15786e4 UB |
1292 | { |
1293 | if(baudrate*10 > H_CLK /0x3fff) | |
1294 | { | |
1295 | /* On H Devices, use 12 000 000 Baudrate when possible | |
74387f27 | 1296 | We have a 14 bit divisor, a 1 bit divisor switch (10 or 16) |
f15786e4 UB |
1297 | three fractional bits and a 120 MHz clock |
1298 | Assume AN_120 "Sub-integer divisors between 0 and 2 are not allowed" holds for | |
1299 | DIV/10 CLK too, so /1, /1.5 and /2 can be handled the same*/ | |
1300 | best_baud = ftdi_to_clkbits(baudrate, H_CLK, 10, &encoded_divisor); | |
1301 | encoded_divisor |= 0x20000; /* switch on CLK/10*/ | |
1302 | } | |
1303 | else | |
1304 | best_baud = ftdi_to_clkbits(baudrate, C_CLK, 16, &encoded_divisor); | |
1305 | } | |
913ca54f | 1306 | else if ((ftdi->type == TYPE_BM) || (ftdi->type == TYPE_2232C) || (ftdi->type == TYPE_R) || (ftdi->type == TYPE_230X)) |
f15786e4 UB |
1307 | { |
1308 | best_baud = ftdi_to_clkbits(baudrate, C_CLK, 16, &encoded_divisor); | |
1309 | } | |
1310 | else | |
22d12cda | 1311 | { |
f15786e4 | 1312 | best_baud = ftdi_to_clkbits_AM(baudrate, &encoded_divisor); |
53ad271d TJ |
1313 | } |
1314 | // Split into "value" and "index" values | |
1315 | *value = (unsigned short)(encoded_divisor & 0xFFFF); | |
6ae693b2 | 1316 | if (ftdi->type == TYPE_2232H || ftdi->type == TYPE_4232H || ftdi->type == TYPE_232H) |
22d12cda | 1317 | { |
0126d22e TJ |
1318 | *index = (unsigned short)(encoded_divisor >> 8); |
1319 | *index &= 0xFF00; | |
a9c57c05 | 1320 | *index |= ftdi->index; |
0126d22e TJ |
1321 | } |
1322 | else | |
1323 | *index = (unsigned short)(encoded_divisor >> 16); | |
c3d95b87 | 1324 | |
53ad271d TJ |
1325 | // Return the nearest baud rate |
1326 | return best_baud; | |
1327 | } | |
1328 | ||
1941414d | 1329 | /** |
ac6944cc TJ |
1330 | * @brief Wrapper function to export ftdi_convert_baudrate() to the unit test |
1331 | * Do not use, it's only for the unit test framework | |
1332 | **/ | |
1333 | int convert_baudrate_UT_export(int baudrate, struct ftdi_context *ftdi, | |
74387f27 | 1334 | unsigned short *value, unsigned short *index) |
ac6944cc TJ |
1335 | { |
1336 | return ftdi_convert_baudrate(baudrate, ftdi, value, index); | |
1337 | } | |
1338 | ||
1339 | /** | |
9bec2387 | 1340 | Sets the chip baud rate |
1941414d TJ |
1341 | |
1342 | \param ftdi pointer to ftdi_context | |
9bec2387 | 1343 | \param baudrate baud rate to set |
1941414d TJ |
1344 | |
1345 | \retval 0: all fine | |
1346 | \retval -1: invalid baudrate | |
1347 | \retval -2: setting baudrate failed | |
22a1b5c1 | 1348 | \retval -3: USB device unavailable |
a3da1d95 | 1349 | */ |
a8f46ddc TJ |
1350 | int ftdi_set_baudrate(struct ftdi_context *ftdi, int baudrate) |
1351 | { | |
53ad271d TJ |
1352 | unsigned short value, index; |
1353 | int actual_baudrate; | |
a3da1d95 | 1354 | |
22a1b5c1 TJ |
1355 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
1356 | ftdi_error_return(-3, "USB device unavailable"); | |
1357 | ||
22d12cda TJ |
1358 | if (ftdi->bitbang_enabled) |
1359 | { | |
a3da1d95 GE |
1360 | baudrate = baudrate*4; |
1361 | } | |
1362 | ||
25707904 | 1363 | actual_baudrate = ftdi_convert_baudrate(baudrate, ftdi, &value, &index); |
c3d95b87 TJ |
1364 | if (actual_baudrate <= 0) |
1365 | ftdi_error_return (-1, "Silly baudrate <= 0."); | |
a3da1d95 | 1366 | |
53ad271d TJ |
1367 | // Check within tolerance (about 5%) |
1368 | if ((actual_baudrate * 2 < baudrate /* Catch overflows */ ) | |
1369 | || ((actual_baudrate < baudrate) | |
1370 | ? (actual_baudrate * 21 < baudrate * 20) | |
c3d95b87 TJ |
1371 | : (baudrate * 21 < actual_baudrate * 20))) |
1372 | ftdi_error_return (-1, "Unsupported baudrate. Note: bitbang baudrates are automatically multiplied by 4"); | |
545820ce | 1373 | |
579b006f JZ |
1374 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
1375 | SIO_SET_BAUDRATE_REQUEST, value, | |
1376 | index, NULL, 0, ftdi->usb_write_timeout) < 0) | |
c3d95b87 | 1377 | ftdi_error_return (-2, "Setting new baudrate failed"); |
a3da1d95 GE |
1378 | |
1379 | ftdi->baudrate = baudrate; | |
1380 | return 0; | |
1381 | } | |
1382 | ||
1941414d | 1383 | /** |
6c32e222 TJ |
1384 | Set (RS232) line characteristics. |
1385 | The break type can only be set via ftdi_set_line_property2() | |
1386 | and defaults to "off". | |
4837f98a | 1387 | |
1941414d TJ |
1388 | \param ftdi pointer to ftdi_context |
1389 | \param bits Number of bits | |
1390 | \param sbit Number of stop bits | |
1391 | \param parity Parity mode | |
1392 | ||
1393 | \retval 0: all fine | |
1394 | \retval -1: Setting line property failed | |
2f73e59f TJ |
1395 | */ |
1396 | int ftdi_set_line_property(struct ftdi_context *ftdi, enum ftdi_bits_type bits, | |
d2f10023 | 1397 | enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity) |
2f73e59f | 1398 | { |
6c32e222 TJ |
1399 | return ftdi_set_line_property2(ftdi, bits, sbit, parity, BREAK_OFF); |
1400 | } | |
1401 | ||
1402 | /** | |
1403 | Set (RS232) line characteristics | |
1404 | ||
1405 | \param ftdi pointer to ftdi_context | |
1406 | \param bits Number of bits | |
1407 | \param sbit Number of stop bits | |
1408 | \param parity Parity mode | |
1409 | \param break_type Break type | |
1410 | ||
1411 | \retval 0: all fine | |
1412 | \retval -1: Setting line property failed | |
22a1b5c1 | 1413 | \retval -2: USB device unavailable |
6c32e222 TJ |
1414 | */ |
1415 | int ftdi_set_line_property2(struct ftdi_context *ftdi, enum ftdi_bits_type bits, | |
22d12cda TJ |
1416 | enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity, |
1417 | enum ftdi_break_type break_type) | |
6c32e222 | 1418 | { |
2f73e59f TJ |
1419 | unsigned short value = bits; |
1420 | ||
22a1b5c1 TJ |
1421 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
1422 | ftdi_error_return(-2, "USB device unavailable"); | |
1423 | ||
22d12cda TJ |
1424 | switch (parity) |
1425 | { | |
1426 | case NONE: | |
1427 | value |= (0x00 << 8); | |
1428 | break; | |
1429 | case ODD: | |
1430 | value |= (0x01 << 8); | |
1431 | break; | |
1432 | case EVEN: | |
1433 | value |= (0x02 << 8); | |
1434 | break; | |
1435 | case MARK: | |
1436 | value |= (0x03 << 8); | |
1437 | break; | |
1438 | case SPACE: | |
1439 | value |= (0x04 << 8); | |
1440 | break; | |
2f73e59f | 1441 | } |
d2f10023 | 1442 | |
22d12cda TJ |
1443 | switch (sbit) |
1444 | { | |
1445 | case STOP_BIT_1: | |
1446 | value |= (0x00 << 11); | |
1447 | break; | |
1448 | case STOP_BIT_15: | |
1449 | value |= (0x01 << 11); | |
1450 | break; | |
1451 | case STOP_BIT_2: | |
1452 | value |= (0x02 << 11); | |
1453 | break; | |
2f73e59f | 1454 | } |
d2f10023 | 1455 | |
22d12cda TJ |
1456 | switch (break_type) |
1457 | { | |
1458 | case BREAK_OFF: | |
1459 | value |= (0x00 << 14); | |
1460 | break; | |
1461 | case BREAK_ON: | |
1462 | value |= (0x01 << 14); | |
1463 | break; | |
6c32e222 TJ |
1464 | } |
1465 | ||
579b006f JZ |
1466 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
1467 | SIO_SET_DATA_REQUEST, value, | |
1468 | ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0) | |
2f73e59f | 1469 | ftdi_error_return (-1, "Setting new line property failed"); |
d2f10023 | 1470 | |
2f73e59f TJ |
1471 | return 0; |
1472 | } | |
a3da1d95 | 1473 | |
1941414d TJ |
1474 | /** |
1475 | Writes data in chunks (see ftdi_write_data_set_chunksize()) to the chip | |
1476 | ||
1477 | \param ftdi pointer to ftdi_context | |
1478 | \param buf Buffer with the data | |
1479 | \param size Size of the buffer | |
1480 | ||
22a1b5c1 | 1481 | \retval -666: USB device unavailable |
1941414d TJ |
1482 | \retval <0: error code from usb_bulk_write() |
1483 | \retval >0: number of bytes written | |
1484 | */ | |
276750c1 | 1485 | int ftdi_write_data(struct ftdi_context *ftdi, const unsigned char *buf, int size) |
a8f46ddc | 1486 | { |
a3da1d95 | 1487 | int offset = 0; |
579b006f | 1488 | int actual_length; |
c3d95b87 | 1489 | |
22a1b5c1 TJ |
1490 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
1491 | ftdi_error_return(-666, "USB device unavailable"); | |
1492 | ||
22d12cda TJ |
1493 | while (offset < size) |
1494 | { | |
948f9ada | 1495 | int write_size = ftdi->writebuffer_chunksize; |
a3da1d95 GE |
1496 | |
1497 | if (offset+write_size > size) | |
1498 | write_size = size-offset; | |
1499 | ||
276750c1 | 1500 | if (libusb_bulk_transfer(ftdi->usb_dev, ftdi->in_ep, (unsigned char *)buf+offset, write_size, &actual_length, ftdi->usb_write_timeout) < 0) |
579b006f | 1501 | ftdi_error_return(-1, "usb bulk write failed"); |
a3da1d95 | 1502 | |
579b006f | 1503 | offset += actual_length; |
a3da1d95 GE |
1504 | } |
1505 | ||
579b006f | 1506 | return offset; |
a3da1d95 GE |
1507 | } |
1508 | ||
32e2d8b0 | 1509 | static void LIBUSB_CALL ftdi_read_data_cb(struct libusb_transfer *transfer) |
22d12cda | 1510 | { |
579b006f JZ |
1511 | struct ftdi_transfer_control *tc = (struct ftdi_transfer_control *) transfer->user_data; |
1512 | struct ftdi_context *ftdi = tc->ftdi; | |
1513 | int packet_size, actual_length, num_of_chunks, chunk_remains, i, ret; | |
4c9e3812 | 1514 | |
b1139150 | 1515 | packet_size = ftdi->max_packet_size; |
579b006f JZ |
1516 | |
1517 | actual_length = transfer->actual_length; | |
1518 | ||
1519 | if (actual_length > 2) | |
1520 | { | |
1521 | // skip FTDI status bytes. | |
1522 | // Maybe stored in the future to enable modem use | |
1523 | num_of_chunks = actual_length / packet_size; | |
1524 | chunk_remains = actual_length % packet_size; | |
1525 | //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); | |
1526 | ||
1527 | ftdi->readbuffer_offset += 2; | |
1528 | actual_length -= 2; | |
1529 | ||
1530 | if (actual_length > packet_size - 2) | |
1531 | { | |
1532 | for (i = 1; i < num_of_chunks; i++) | |
56ac0383 TJ |
1533 | memmove (ftdi->readbuffer+ftdi->readbuffer_offset+(packet_size - 2)*i, |
1534 | ftdi->readbuffer+ftdi->readbuffer_offset+packet_size*i, | |
1535 | packet_size - 2); | |
579b006f JZ |
1536 | if (chunk_remains > 2) |
1537 | { | |
1538 | memmove (ftdi->readbuffer+ftdi->readbuffer_offset+(packet_size - 2)*i, | |
1539 | ftdi->readbuffer+ftdi->readbuffer_offset+packet_size*i, | |
1540 | chunk_remains-2); | |
1541 | actual_length -= 2*num_of_chunks; | |
1542 | } | |
1543 | else | |
56ac0383 | 1544 | actual_length -= 2*(num_of_chunks-1)+chunk_remains; |
579b006f JZ |
1545 | } |
1546 | ||
1547 | if (actual_length > 0) | |
1548 | { | |
1549 | // data still fits in buf? | |
1550 | if (tc->offset + actual_length <= tc->size) | |
1551 | { | |
1552 | memcpy (tc->buf + tc->offset, ftdi->readbuffer + ftdi->readbuffer_offset, actual_length); | |
1553 | //printf("buf[0] = %X, buf[1] = %X\n", buf[0], buf[1]); | |
1554 | tc->offset += actual_length; | |
1555 | ||
1556 | ftdi->readbuffer_offset = 0; | |
1557 | ftdi->readbuffer_remaining = 0; | |
1558 | ||
1559 | /* Did we read exactly the right amount of bytes? */ | |
1560 | if (tc->offset == tc->size) | |
1561 | { | |
1562 | //printf("read_data exact rem %d offset %d\n", | |
1563 | //ftdi->readbuffer_remaining, offset); | |
1564 | tc->completed = 1; | |
1565 | return; | |
1566 | } | |
1567 | } | |
1568 | else | |
1569 | { | |
1570 | // only copy part of the data or size <= readbuffer_chunksize | |
1571 | int part_size = tc->size - tc->offset; | |
1572 | memcpy (tc->buf + tc->offset, ftdi->readbuffer + ftdi->readbuffer_offset, part_size); | |
1573 | tc->offset += part_size; | |
1574 | ||
1575 | ftdi->readbuffer_offset += part_size; | |
1576 | ftdi->readbuffer_remaining = actual_length - part_size; | |
1577 | ||
1578 | /* printf("Returning part: %d - size: %d - offset: %d - actual_length: %d - remaining: %d\n", | |
1579 | part_size, size, offset, actual_length, ftdi->readbuffer_remaining); */ | |
1580 | tc->completed = 1; | |
1581 | return; | |
1582 | } | |
1583 | } | |
1584 | } | |
1b1bf7e4 EH |
1585 | |
1586 | if (transfer->status == LIBUSB_TRANSFER_CANCELLED) | |
1587 | tc->completed = LIBUSB_TRANSFER_CANCELLED; | |
1588 | else | |
1589 | { | |
1590 | ret = libusb_submit_transfer (transfer); | |
1591 | if (ret < 0) | |
1592 | tc->completed = 1; | |
1593 | } | |
579b006f JZ |
1594 | } |
1595 | ||
1596 | ||
32e2d8b0 | 1597 | static void LIBUSB_CALL ftdi_write_data_cb(struct libusb_transfer *transfer) |
7cc9950e | 1598 | { |
579b006f JZ |
1599 | struct ftdi_transfer_control *tc = (struct ftdi_transfer_control *) transfer->user_data; |
1600 | struct ftdi_context *ftdi = tc->ftdi; | |
56ac0383 | 1601 | |
90ef163e | 1602 | tc->offset += transfer->actual_length; |
56ac0383 | 1603 | |
579b006f | 1604 | if (tc->offset == tc->size) |
22d12cda | 1605 | { |
579b006f | 1606 | tc->completed = 1; |
7cc9950e | 1607 | } |
579b006f JZ |
1608 | else |
1609 | { | |
1610 | int write_size = ftdi->writebuffer_chunksize; | |
1611 | int ret; | |
7cc9950e | 1612 | |
579b006f JZ |
1613 | if (tc->offset + write_size > tc->size) |
1614 | write_size = tc->size - tc->offset; | |
1615 | ||
1616 | transfer->length = write_size; | |
1617 | transfer->buffer = tc->buf + tc->offset; | |
1b1bf7e4 EH |
1618 | |
1619 | if (transfer->status == LIBUSB_TRANSFER_CANCELLED) | |
1620 | tc->completed = LIBUSB_TRANSFER_CANCELLED; | |
1621 | else | |
1622 | { | |
1623 | ret = libusb_submit_transfer (transfer); | |
1624 | if (ret < 0) | |
1625 | tc->completed = 1; | |
1626 | } | |
579b006f | 1627 | } |
7cc9950e GE |
1628 | } |
1629 | ||
579b006f | 1630 | |
84f85aaa | 1631 | /** |
579b006f JZ |
1632 | Writes data to the chip. Does not wait for completion of the transfer |
1633 | nor does it make sure that the transfer was successful. | |
1634 | ||
249888c8 | 1635 | Use libusb 1.0 asynchronous API. |
84f85aaa GE |
1636 | |
1637 | \param ftdi pointer to ftdi_context | |
579b006f JZ |
1638 | \param buf Buffer with the data |
1639 | \param size Size of the buffer | |
84f85aaa | 1640 | |
579b006f JZ |
1641 | \retval NULL: Some error happens when submit transfer |
1642 | \retval !NULL: Pointer to a ftdi_transfer_control | |
c201f80f | 1643 | */ |
579b006f JZ |
1644 | |
1645 | struct ftdi_transfer_control *ftdi_write_data_submit(struct ftdi_context *ftdi, unsigned char *buf, int size) | |
7cc9950e | 1646 | { |
579b006f | 1647 | struct ftdi_transfer_control *tc; |
5e77e870 | 1648 | struct libusb_transfer *transfer; |
579b006f | 1649 | int write_size, ret; |
22d12cda | 1650 | |
22a1b5c1 | 1651 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
22a1b5c1 | 1652 | return NULL; |
22a1b5c1 | 1653 | |
579b006f | 1654 | tc = (struct ftdi_transfer_control *) malloc (sizeof (*tc)); |
5e77e870 TJ |
1655 | if (!tc) |
1656 | return NULL; | |
22d12cda | 1657 | |
5e77e870 TJ |
1658 | transfer = libusb_alloc_transfer(0); |
1659 | if (!transfer) | |
1660 | { | |
1661 | free(tc); | |
579b006f | 1662 | return NULL; |
5e77e870 | 1663 | } |
22d12cda | 1664 | |
579b006f JZ |
1665 | tc->ftdi = ftdi; |
1666 | tc->completed = 0; | |
1667 | tc->buf = buf; | |
1668 | tc->size = size; | |
1669 | tc->offset = 0; | |
7cc9950e | 1670 | |
9e44fc94 | 1671 | if (size < (int)ftdi->writebuffer_chunksize) |
56ac0383 | 1672 | write_size = size; |
579b006f | 1673 | else |
56ac0383 | 1674 | write_size = ftdi->writebuffer_chunksize; |
22d12cda | 1675 | |
90ef163e YSL |
1676 | libusb_fill_bulk_transfer(transfer, ftdi->usb_dev, ftdi->in_ep, buf, |
1677 | write_size, ftdi_write_data_cb, tc, | |
1678 | ftdi->usb_write_timeout); | |
579b006f | 1679 | transfer->type = LIBUSB_TRANSFER_TYPE_BULK; |
7cc9950e | 1680 | |
579b006f JZ |
1681 | ret = libusb_submit_transfer(transfer); |
1682 | if (ret < 0) | |
1683 | { | |
1684 | libusb_free_transfer(transfer); | |
5e77e870 | 1685 | free(tc); |
579b006f | 1686 | return NULL; |
7cc9950e | 1687 | } |
579b006f JZ |
1688 | tc->transfer = transfer; |
1689 | ||
1690 | return tc; | |
7cc9950e GE |
1691 | } |
1692 | ||
1693 | /** | |
579b006f JZ |
1694 | Reads data from the chip. Does not wait for completion of the transfer |
1695 | nor does it make sure that the transfer was successful. | |
1696 | ||
249888c8 | 1697 | Use libusb 1.0 asynchronous API. |
7cc9950e GE |
1698 | |
1699 | \param ftdi pointer to ftdi_context | |
579b006f JZ |
1700 | \param buf Buffer with the data |
1701 | \param size Size of the buffer | |
4c9e3812 | 1702 | |
579b006f JZ |
1703 | \retval NULL: Some error happens when submit transfer |
1704 | \retval !NULL: Pointer to a ftdi_transfer_control | |
4c9e3812 | 1705 | */ |
579b006f JZ |
1706 | |
1707 | struct ftdi_transfer_control *ftdi_read_data_submit(struct ftdi_context *ftdi, unsigned char *buf, int size) | |
4c9e3812 | 1708 | { |
579b006f JZ |
1709 | struct ftdi_transfer_control *tc; |
1710 | struct libusb_transfer *transfer; | |
1711 | int ret; | |
22d12cda | 1712 | |
22a1b5c1 TJ |
1713 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
1714 | return NULL; | |
1715 | ||
579b006f JZ |
1716 | tc = (struct ftdi_transfer_control *) malloc (sizeof (*tc)); |
1717 | if (!tc) | |
1718 | return NULL; | |
1719 | ||
1720 | tc->ftdi = ftdi; | |
1721 | tc->buf = buf; | |
1722 | tc->size = size; | |
1723 | ||
9e44fc94 | 1724 | if (size <= (int)ftdi->readbuffer_remaining) |
7cc9950e | 1725 | { |
579b006f | 1726 | memcpy (buf, ftdi->readbuffer+ftdi->readbuffer_offset, size); |
7cc9950e | 1727 | |
579b006f JZ |
1728 | // Fix offsets |
1729 | ftdi->readbuffer_remaining -= size; | |
1730 | ftdi->readbuffer_offset += size; | |
7cc9950e | 1731 | |
579b006f | 1732 | /* printf("Returning bytes from buffer: %d - remaining: %d\n", size, ftdi->readbuffer_remaining); */ |
22d12cda | 1733 | |
579b006f JZ |
1734 | tc->completed = 1; |
1735 | tc->offset = size; | |
1736 | tc->transfer = NULL; | |
1737 | return tc; | |
1738 | } | |
4c9e3812 | 1739 | |
579b006f JZ |
1740 | tc->completed = 0; |
1741 | if (ftdi->readbuffer_remaining != 0) | |
1742 | { | |
1743 | memcpy (buf, ftdi->readbuffer+ftdi->readbuffer_offset, ftdi->readbuffer_remaining); | |
22d12cda | 1744 | |
579b006f JZ |
1745 | tc->offset = ftdi->readbuffer_remaining; |
1746 | } | |
1747 | else | |
1748 | tc->offset = 0; | |
22d12cda | 1749 | |
579b006f JZ |
1750 | transfer = libusb_alloc_transfer(0); |
1751 | if (!transfer) | |
1752 | { | |
1753 | free (tc); | |
1754 | return NULL; | |
1755 | } | |
22d12cda | 1756 | |
579b006f JZ |
1757 | ftdi->readbuffer_remaining = 0; |
1758 | ftdi->readbuffer_offset = 0; | |
1759 | ||
1760 | 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); | |
1761 | transfer->type = LIBUSB_TRANSFER_TYPE_BULK; | |
1762 | ||
1763 | ret = libusb_submit_transfer(transfer); | |
1764 | if (ret < 0) | |
1765 | { | |
1766 | libusb_free_transfer(transfer); | |
1767 | free (tc); | |
1768 | return NULL; | |
22d12cda | 1769 | } |
579b006f JZ |
1770 | tc->transfer = transfer; |
1771 | ||
1772 | return tc; | |
4c9e3812 GE |
1773 | } |
1774 | ||
1775 | /** | |
579b006f | 1776 | Wait for completion of the transfer. |
4c9e3812 | 1777 | |
249888c8 | 1778 | Use libusb 1.0 asynchronous API. |
4c9e3812 | 1779 | |
579b006f | 1780 | \param tc pointer to ftdi_transfer_control |
4c9e3812 | 1781 | |
579b006f JZ |
1782 | \retval < 0: Some error happens |
1783 | \retval >= 0: Data size transferred | |
4c9e3812 | 1784 | */ |
579b006f JZ |
1785 | |
1786 | int ftdi_transfer_data_done(struct ftdi_transfer_control *tc) | |
4c9e3812 GE |
1787 | { |
1788 | int ret; | |
1b1bf7e4 | 1789 | struct timeval to = { 0, 0 }; |
579b006f | 1790 | while (!tc->completed) |
22d12cda | 1791 | { |
1b1bf7e4 EH |
1792 | ret = libusb_handle_events_timeout_completed(tc->ftdi->usb_ctx, |
1793 | &to, &tc->completed); | |
4c9e3812 | 1794 | if (ret < 0) |
579b006f JZ |
1795 | { |
1796 | if (ret == LIBUSB_ERROR_INTERRUPTED) | |
1797 | continue; | |
1798 | libusb_cancel_transfer(tc->transfer); | |
1799 | while (!tc->completed) | |
1b1bf7e4 EH |
1800 | if (libusb_handle_events_timeout_completed(tc->ftdi->usb_ctx, |
1801 | &to, &tc->completed) < 0) | |
579b006f JZ |
1802 | break; |
1803 | libusb_free_transfer(tc->transfer); | |
1804 | free (tc); | |
579b006f JZ |
1805 | return ret; |
1806 | } | |
4c9e3812 GE |
1807 | } |
1808 | ||
90ef163e YSL |
1809 | ret = tc->offset; |
1810 | /** | |
1811 | * tc->transfer could be NULL if "(size <= ftdi->readbuffer_remaining)" | |
ef15fab5 | 1812 | * at ftdi_read_data_submit(). Therefore, we need to check it here. |
90ef163e | 1813 | **/ |
ef15fab5 TJ |
1814 | if (tc->transfer) |
1815 | { | |
1816 | if (tc->transfer->status != LIBUSB_TRANSFER_COMPLETED) | |
1817 | ret = -1; | |
1818 | libusb_free_transfer(tc->transfer); | |
90ef163e | 1819 | } |
579b006f JZ |
1820 | free(tc); |
1821 | return ret; | |
4c9e3812 | 1822 | } |
579b006f | 1823 | |
1941414d | 1824 | /** |
1b1bf7e4 EH |
1825 | Cancel transfer and wait for completion. |
1826 | ||
1827 | Use libusb 1.0 asynchronous API. | |
1828 | ||
1829 | \param tc pointer to ftdi_transfer_control | |
1830 | \param to pointer to timeout value or NULL for infinite | |
1831 | */ | |
1832 | ||
1833 | void ftdi_transfer_data_cancel(struct ftdi_transfer_control *tc, | |
1834 | struct timeval * to) | |
1835 | { | |
1836 | struct timeval tv = { 0, 0 }; | |
1837 | ||
1838 | if (!tc->completed && tc->transfer != NULL) | |
1839 | { | |
1840 | if (to == NULL) | |
1841 | to = &tv; | |
1842 | ||
1843 | libusb_cancel_transfer(tc->transfer); | |
1844 | while (!tc->completed) | |
1845 | { | |
1846 | if (libusb_handle_events_timeout_completed(tc->ftdi->usb_ctx, to, &tc->completed) < 0) | |
1847 | break; | |
1848 | } | |
1849 | } | |
1850 | ||
1851 | if (tc->transfer) | |
1852 | libusb_free_transfer(tc->transfer); | |
1853 | ||
1854 | free (tc); | |
1855 | } | |
1856 | ||
1857 | /** | |
1941414d TJ |
1858 | Configure write buffer chunk size. |
1859 | Default is 4096. | |
1860 | ||
1861 | \param ftdi pointer to ftdi_context | |
1862 | \param chunksize Chunk size | |
a3da1d95 | 1863 | |
1941414d | 1864 | \retval 0: all fine |
22a1b5c1 | 1865 | \retval -1: ftdi context invalid |
1941414d | 1866 | */ |
a8f46ddc TJ |
1867 | int ftdi_write_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize) |
1868 | { | |
22a1b5c1 TJ |
1869 | if (ftdi == NULL) |
1870 | ftdi_error_return(-1, "ftdi context invalid"); | |
1871 | ||
948f9ada TJ |
1872 | ftdi->writebuffer_chunksize = chunksize; |
1873 | return 0; | |
1874 | } | |
1875 | ||
1941414d TJ |
1876 | /** |
1877 | Get write buffer chunk size. | |
1878 | ||
1879 | \param ftdi pointer to ftdi_context | |
1880 | \param chunksize Pointer to store chunk size in | |
948f9ada | 1881 | |
1941414d | 1882 | \retval 0: all fine |
22a1b5c1 | 1883 | \retval -1: ftdi context invalid |
1941414d | 1884 | */ |
a8f46ddc TJ |
1885 | int ftdi_write_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize) |
1886 | { | |
22a1b5c1 TJ |
1887 | if (ftdi == NULL) |
1888 | ftdi_error_return(-1, "ftdi context invalid"); | |
1889 | ||
948f9ada TJ |
1890 | *chunksize = ftdi->writebuffer_chunksize; |
1891 | return 0; | |
1892 | } | |
cbabb7d3 | 1893 | |
1941414d TJ |
1894 | /** |
1895 | Reads data in chunks (see ftdi_read_data_set_chunksize()) from the chip. | |
1896 | ||
1897 | Automatically strips the two modem status bytes transfered during every read. | |
948f9ada | 1898 | |
1941414d TJ |
1899 | \param ftdi pointer to ftdi_context |
1900 | \param buf Buffer to store data in | |
1901 | \param size Size of the buffer | |
1902 | ||
22a1b5c1 | 1903 | \retval -666: USB device unavailable |
579b006f | 1904 | \retval <0: error code from libusb_bulk_transfer() |
d77b0e94 | 1905 | \retval 0: no data was available |
1941414d TJ |
1906 | \retval >0: number of bytes read |
1907 | ||
1941414d | 1908 | */ |
a8f46ddc TJ |
1909 | int ftdi_read_data(struct ftdi_context *ftdi, unsigned char *buf, int size) |
1910 | { | |
579b006f | 1911 | int offset = 0, ret, i, num_of_chunks, chunk_remains; |
e2f12a4f | 1912 | int packet_size = ftdi->max_packet_size; |
579b006f | 1913 | int actual_length = 1; |
f2f00cb5 | 1914 | |
22a1b5c1 TJ |
1915 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
1916 | ftdi_error_return(-666, "USB device unavailable"); | |
1917 | ||
e2f12a4f TJ |
1918 | // Packet size sanity check (avoid division by zero) |
1919 | if (packet_size == 0) | |
1920 | ftdi_error_return(-1, "max_packet_size is bogus (zero)"); | |
d9f0cce7 | 1921 | |
948f9ada | 1922 | // everything we want is still in the readbuffer? |
9e44fc94 | 1923 | if (size <= (int)ftdi->readbuffer_remaining) |
22d12cda | 1924 | { |
d9f0cce7 TJ |
1925 | memcpy (buf, ftdi->readbuffer+ftdi->readbuffer_offset, size); |
1926 | ||
1927 | // Fix offsets | |
1928 | ftdi->readbuffer_remaining -= size; | |
1929 | ftdi->readbuffer_offset += size; | |
1930 | ||
545820ce | 1931 | /* printf("Returning bytes from buffer: %d - remaining: %d\n", size, ftdi->readbuffer_remaining); */ |
d9f0cce7 TJ |
1932 | |
1933 | return size; | |
979a145c | 1934 | } |
948f9ada | 1935 | // something still in the readbuffer, but not enough to satisfy 'size'? |
22d12cda TJ |
1936 | if (ftdi->readbuffer_remaining != 0) |
1937 | { | |
d9f0cce7 | 1938 | memcpy (buf, ftdi->readbuffer+ftdi->readbuffer_offset, ftdi->readbuffer_remaining); |
979a145c | 1939 | |
d9f0cce7 TJ |
1940 | // Fix offset |
1941 | offset += ftdi->readbuffer_remaining; | |
948f9ada | 1942 | } |
948f9ada | 1943 | // do the actual USB read |
579b006f | 1944 | while (offset < size && actual_length > 0) |
22d12cda | 1945 | { |
d9f0cce7 TJ |
1946 | ftdi->readbuffer_remaining = 0; |
1947 | ftdi->readbuffer_offset = 0; | |
98452d97 | 1948 | /* returns how much received */ |
579b006f | 1949 | ret = libusb_bulk_transfer (ftdi->usb_dev, ftdi->out_ep, ftdi->readbuffer, ftdi->readbuffer_chunksize, &actual_length, ftdi->usb_read_timeout); |
c3d95b87 TJ |
1950 | if (ret < 0) |
1951 | ftdi_error_return(ret, "usb bulk read failed"); | |
98452d97 | 1952 | |
579b006f | 1953 | if (actual_length > 2) |
22d12cda | 1954 | { |
d9f0cce7 TJ |
1955 | // skip FTDI status bytes. |
1956 | // Maybe stored in the future to enable modem use | |
579b006f JZ |
1957 | num_of_chunks = actual_length / packet_size; |
1958 | chunk_remains = actual_length % packet_size; | |
1959 | //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 | 1960 | |
d9f0cce7 | 1961 | ftdi->readbuffer_offset += 2; |
579b006f | 1962 | actual_length -= 2; |
1c733d33 | 1963 | |
579b006f | 1964 | if (actual_length > packet_size - 2) |
22d12cda | 1965 | { |
1c733d33 | 1966 | for (i = 1; i < num_of_chunks; i++) |
f2f00cb5 DC |
1967 | memmove (ftdi->readbuffer+ftdi->readbuffer_offset+(packet_size - 2)*i, |
1968 | ftdi->readbuffer+ftdi->readbuffer_offset+packet_size*i, | |
1969 | packet_size - 2); | |
22d12cda TJ |
1970 | if (chunk_remains > 2) |
1971 | { | |
f2f00cb5 DC |
1972 | memmove (ftdi->readbuffer+ftdi->readbuffer_offset+(packet_size - 2)*i, |
1973 | ftdi->readbuffer+ftdi->readbuffer_offset+packet_size*i, | |
1c733d33 | 1974 | chunk_remains-2); |
579b006f | 1975 | actual_length -= 2*num_of_chunks; |
22d12cda TJ |
1976 | } |
1977 | else | |
579b006f | 1978 | actual_length -= 2*(num_of_chunks-1)+chunk_remains; |
1c733d33 | 1979 | } |
22d12cda | 1980 | } |
579b006f | 1981 | else if (actual_length <= 2) |
22d12cda | 1982 | { |
d9f0cce7 TJ |
1983 | // no more data to read? |
1984 | return offset; | |
1985 | } | |
579b006f | 1986 | if (actual_length > 0) |
22d12cda | 1987 | { |
d9f0cce7 | 1988 | // data still fits in buf? |
579b006f | 1989 | if (offset+actual_length <= size) |
22d12cda | 1990 | { |
579b006f | 1991 | memcpy (buf+offset, ftdi->readbuffer+ftdi->readbuffer_offset, actual_length); |
545820ce | 1992 | //printf("buf[0] = %X, buf[1] = %X\n", buf[0], buf[1]); |
579b006f | 1993 | offset += actual_length; |
d9f0cce7 | 1994 | |
53ad271d | 1995 | /* Did we read exactly the right amount of bytes? */ |
d9f0cce7 | 1996 | if (offset == size) |
c4446c36 TJ |
1997 | //printf("read_data exact rem %d offset %d\n", |
1998 | //ftdi->readbuffer_remaining, offset); | |
d9f0cce7 | 1999 | return offset; |
22d12cda TJ |
2000 | } |
2001 | else | |
2002 | { | |
d9f0cce7 TJ |
2003 | // only copy part of the data or size <= readbuffer_chunksize |
2004 | int part_size = size-offset; | |
2005 | memcpy (buf+offset, ftdi->readbuffer+ftdi->readbuffer_offset, part_size); | |
98452d97 | 2006 | |
d9f0cce7 | 2007 | ftdi->readbuffer_offset += part_size; |
579b006f | 2008 | ftdi->readbuffer_remaining = actual_length-part_size; |
d9f0cce7 TJ |
2009 | offset += part_size; |
2010 | ||
579b006f JZ |
2011 | /* printf("Returning part: %d - size: %d - offset: %d - actual_length: %d - remaining: %d\n", |
2012 | part_size, size, offset, actual_length, ftdi->readbuffer_remaining); */ | |
d9f0cce7 TJ |
2013 | |
2014 | return offset; | |
2015 | } | |
2016 | } | |
cbabb7d3 | 2017 | } |
948f9ada | 2018 | // never reached |
29c4af7f | 2019 | return -127; |
a3da1d95 GE |
2020 | } |
2021 | ||
1941414d TJ |
2022 | /** |
2023 | Configure read buffer chunk size. | |
2024 | Default is 4096. | |
2025 | ||
2026 | Automatically reallocates the buffer. | |
a3da1d95 | 2027 | |
1941414d TJ |
2028 | \param ftdi pointer to ftdi_context |
2029 | \param chunksize Chunk size | |
2030 | ||
2031 | \retval 0: all fine | |
22a1b5c1 | 2032 | \retval -1: ftdi context invalid |
1941414d | 2033 | */ |
a8f46ddc TJ |
2034 | int ftdi_read_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize) |
2035 | { | |
29c4af7f TJ |
2036 | unsigned char *new_buf; |
2037 | ||
22a1b5c1 TJ |
2038 | if (ftdi == NULL) |
2039 | ftdi_error_return(-1, "ftdi context invalid"); | |
2040 | ||
948f9ada TJ |
2041 | // Invalidate all remaining data |
2042 | ftdi->readbuffer_offset = 0; | |
2043 | ftdi->readbuffer_remaining = 0; | |
8de6eea4 JZ |
2044 | #ifdef __linux__ |
2045 | /* We can't set readbuffer_chunksize larger than MAX_BULK_BUFFER_LENGTH, | |
2046 | which is defined in libusb-1.0. Otherwise, each USB read request will | |
2e685a1f | 2047 | be divided into multiple URBs. This will cause issues on Linux kernel |
8de6eea4 JZ |
2048 | older than 2.6.32. */ |
2049 | if (chunksize > 16384) | |
2050 | chunksize = 16384; | |
2051 | #endif | |
948f9ada | 2052 | |
c3d95b87 TJ |
2053 | if ((new_buf = (unsigned char *)realloc(ftdi->readbuffer, chunksize)) == NULL) |
2054 | ftdi_error_return(-1, "out of memory for readbuffer"); | |
d9f0cce7 | 2055 | |
948f9ada TJ |
2056 | ftdi->readbuffer = new_buf; |
2057 | ftdi->readbuffer_chunksize = chunksize; | |
2058 | ||
2059 | return 0; | |
2060 | } | |
2061 | ||
1941414d TJ |
2062 | /** |
2063 | Get read buffer chunk size. | |
948f9ada | 2064 | |
1941414d TJ |
2065 | \param ftdi pointer to ftdi_context |
2066 | \param chunksize Pointer to store chunk size in | |
2067 | ||
2068 | \retval 0: all fine | |
22a1b5c1 | 2069 | \retval -1: FTDI context invalid |
1941414d | 2070 | */ |
a8f46ddc TJ |
2071 | int ftdi_read_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize) |
2072 | { | |
22a1b5c1 TJ |
2073 | if (ftdi == NULL) |
2074 | ftdi_error_return(-1, "FTDI context invalid"); | |
2075 | ||
948f9ada TJ |
2076 | *chunksize = ftdi->readbuffer_chunksize; |
2077 | return 0; | |
2078 | } | |
2079 | ||
1941414d | 2080 | /** |
2d790e37 | 2081 | Enable/disable bitbang modes. |
1941414d TJ |
2082 | |
2083 | \param ftdi pointer to ftdi_context | |
2084 | \param bitmask Bitmask to configure lines. | |
2085 | HIGH/ON value configures a line as output. | |
2d790e37 | 2086 | \param mode Bitbang mode: use the values defined in \ref ftdi_mpsse_mode |
1941414d TJ |
2087 | |
2088 | \retval 0: all fine | |
2089 | \retval -1: can't enable bitbang mode | |
22a1b5c1 | 2090 | \retval -2: USB device unavailable |
1941414d | 2091 | */ |
2d790e37 | 2092 | int ftdi_set_bitmode(struct ftdi_context *ftdi, unsigned char bitmask, unsigned char mode) |
a8f46ddc | 2093 | { |
a3da1d95 GE |
2094 | unsigned short usb_val; |
2095 | ||
22a1b5c1 TJ |
2096 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2097 | ftdi_error_return(-2, "USB device unavailable"); | |
2098 | ||
d9f0cce7 | 2099 | usb_val = bitmask; // low byte: bitmask |
2d790e37 TJ |
2100 | usb_val |= (mode << 8); |
2101 | 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) | |
2102 | ftdi_error_return(-1, "unable to configure bitbang mode. Perhaps not a BM/2232C type chip?"); | |
c3d95b87 | 2103 | |
2d790e37 TJ |
2104 | ftdi->bitbang_mode = mode; |
2105 | ftdi->bitbang_enabled = (mode == BITMODE_RESET) ? 0 : 1; | |
a3da1d95 GE |
2106 | return 0; |
2107 | } | |
2108 | ||
1941414d TJ |
2109 | /** |
2110 | Disable bitbang mode. | |
a3da1d95 | 2111 | |
1941414d TJ |
2112 | \param ftdi pointer to ftdi_context |
2113 | ||
2114 | \retval 0: all fine | |
2115 | \retval -1: can't disable bitbang mode | |
22a1b5c1 | 2116 | \retval -2: USB device unavailable |
1941414d | 2117 | */ |
a8f46ddc TJ |
2118 | int ftdi_disable_bitbang(struct ftdi_context *ftdi) |
2119 | { | |
22a1b5c1 TJ |
2120 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2121 | ftdi_error_return(-2, "USB device unavailable"); | |
2122 | ||
579b006f | 2123 | 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 | 2124 | ftdi_error_return(-1, "unable to leave bitbang mode. Perhaps not a BM type chip?"); |
a3da1d95 GE |
2125 | |
2126 | ftdi->bitbang_enabled = 0; | |
2127 | return 0; | |
2128 | } | |
2129 | ||
c4446c36 | 2130 | |
1941414d | 2131 | /** |
418aaa72 | 2132 | Directly read pin state, circumventing the read buffer. Useful for bitbang mode. |
1941414d TJ |
2133 | |
2134 | \param ftdi pointer to ftdi_context | |
2135 | \param pins Pointer to store pins into | |
2136 | ||
2137 | \retval 0: all fine | |
2138 | \retval -1: read pins failed | |
22a1b5c1 | 2139 | \retval -2: USB device unavailable |
1941414d | 2140 | */ |
a8f46ddc TJ |
2141 | int ftdi_read_pins(struct ftdi_context *ftdi, unsigned char *pins) |
2142 | { | |
22a1b5c1 TJ |
2143 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2144 | ftdi_error_return(-2, "USB device unavailable"); | |
2145 | ||
579b006f | 2146 | 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 | 2147 | ftdi_error_return(-1, "read pins failed"); |
a3da1d95 | 2148 | |
a3da1d95 GE |
2149 | return 0; |
2150 | } | |
2151 | ||
1941414d TJ |
2152 | /** |
2153 | Set latency timer | |
2154 | ||
2155 | The FTDI chip keeps data in the internal buffer for a specific | |
2156 | amount of time if the buffer is not full yet to decrease | |
2157 | load on the usb bus. | |
a3da1d95 | 2158 | |
1941414d TJ |
2159 | \param ftdi pointer to ftdi_context |
2160 | \param latency Value between 1 and 255 | |
2161 | ||
2162 | \retval 0: all fine | |
2163 | \retval -1: latency out of range | |
2164 | \retval -2: unable to set latency timer | |
22a1b5c1 | 2165 | \retval -3: USB device unavailable |
1941414d | 2166 | */ |
a8f46ddc TJ |
2167 | int ftdi_set_latency_timer(struct ftdi_context *ftdi, unsigned char latency) |
2168 | { | |
a3da1d95 GE |
2169 | unsigned short usb_val; |
2170 | ||
c3d95b87 TJ |
2171 | if (latency < 1) |
2172 | ftdi_error_return(-1, "latency out of range. Only valid for 1-255"); | |
a3da1d95 | 2173 | |
22a1b5c1 TJ |
2174 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2175 | ftdi_error_return(-3, "USB device unavailable"); | |
2176 | ||
d79d2e68 | 2177 | usb_val = latency; |
579b006f | 2178 | 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 |
2179 | ftdi_error_return(-2, "unable to set latency timer"); |
2180 | ||
a3da1d95 GE |
2181 | return 0; |
2182 | } | |
2183 | ||
1941414d TJ |
2184 | /** |
2185 | Get latency timer | |
a3da1d95 | 2186 | |
1941414d TJ |
2187 | \param ftdi pointer to ftdi_context |
2188 | \param latency Pointer to store latency value in | |
2189 | ||
2190 | \retval 0: all fine | |
2191 | \retval -1: unable to get latency timer | |
22a1b5c1 | 2192 | \retval -2: USB device unavailable |
1941414d | 2193 | */ |
a8f46ddc TJ |
2194 | int ftdi_get_latency_timer(struct ftdi_context *ftdi, unsigned char *latency) |
2195 | { | |
a3da1d95 | 2196 | unsigned short usb_val; |
22a1b5c1 TJ |
2197 | |
2198 | if (ftdi == NULL || ftdi->usb_dev == NULL) | |
2199 | ftdi_error_return(-2, "USB device unavailable"); | |
2200 | ||
579b006f | 2201 | 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 | 2202 | ftdi_error_return(-1, "reading latency timer failed"); |
a3da1d95 GE |
2203 | |
2204 | *latency = (unsigned char)usb_val; | |
2205 | return 0; | |
2206 | } | |
2207 | ||
1941414d | 2208 | /** |
1189b11a TJ |
2209 | Poll modem status information |
2210 | ||
2211 | This function allows the retrieve the two status bytes of the device. | |
2212 | The device sends these bytes also as a header for each read access | |
2213 | where they are discarded by ftdi_read_data(). The chip generates | |
2214 | the two stripped status bytes in the absence of data every 40 ms. | |
2215 | ||
2216 | Layout of the first byte: | |
2217 | - B0..B3 - must be 0 | |
2218 | - B4 Clear to send (CTS) | |
2219 | 0 = inactive | |
2220 | 1 = active | |
2221 | - B5 Data set ready (DTS) | |
2222 | 0 = inactive | |
2223 | 1 = active | |
2224 | - B6 Ring indicator (RI) | |
2225 | 0 = inactive | |
2226 | 1 = active | |
2227 | - B7 Receive line signal detect (RLSD) | |
2228 | 0 = inactive | |
2229 | 1 = active | |
2230 | ||
2231 | Layout of the second byte: | |
2232 | - B0 Data ready (DR) | |
2233 | - B1 Overrun error (OE) | |
2234 | - B2 Parity error (PE) | |
2235 | - B3 Framing error (FE) | |
2236 | - B4 Break interrupt (BI) | |
2237 | - B5 Transmitter holding register (THRE) | |
2238 | - B6 Transmitter empty (TEMT) | |
2239 | - B7 Error in RCVR FIFO | |
2240 | ||
2241 | \param ftdi pointer to ftdi_context | |
2242 | \param status Pointer to store status information in. Must be two bytes. | |
2243 | ||
2244 | \retval 0: all fine | |
2245 | \retval -1: unable to retrieve status information | |
22a1b5c1 | 2246 | \retval -2: USB device unavailable |
1189b11a TJ |
2247 | */ |
2248 | int ftdi_poll_modem_status(struct ftdi_context *ftdi, unsigned short *status) | |
2249 | { | |
2250 | char usb_val[2]; | |
2251 | ||
22a1b5c1 TJ |
2252 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2253 | ftdi_error_return(-2, "USB device unavailable"); | |
2254 | ||
579b006f | 2255 | 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 |
2256 | ftdi_error_return(-1, "getting modem status failed"); |
2257 | ||
dc09eaa8 | 2258 | *status = (usb_val[1] << 8) | (usb_val[0] & 0xFF); |
1189b11a TJ |
2259 | |
2260 | return 0; | |
2261 | } | |
2262 | ||
a7fb8440 TJ |
2263 | /** |
2264 | Set flowcontrol for ftdi chip | |
2265 | ||
fdb93a5e PJ |
2266 | Note: Do not use this function to enable XON/XOFF mode, use ftdi_setflowctrl_xonxoff() instead. |
2267 | ||
a7fb8440 | 2268 | \param ftdi pointer to ftdi_context |
22d12cda | 2269 | \param flowctrl flow control to use. should be |
fdb93a5e | 2270 | SIO_DISABLE_FLOW_CTRL, SIO_RTS_CTS_HS, SIO_DTR_DSR_HS |
a7fb8440 TJ |
2271 | |
2272 | \retval 0: all fine | |
2273 | \retval -1: set flow control failed | |
22a1b5c1 | 2274 | \retval -2: USB device unavailable |
a7fb8440 TJ |
2275 | */ |
2276 | int ftdi_setflowctrl(struct ftdi_context *ftdi, int flowctrl) | |
2277 | { | |
22a1b5c1 TJ |
2278 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2279 | ftdi_error_return(-2, "USB device unavailable"); | |
2280 | ||
579b006f JZ |
2281 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
2282 | SIO_SET_FLOW_CTRL_REQUEST, 0, (flowctrl | ftdi->index), | |
2283 | NULL, 0, ftdi->usb_write_timeout) < 0) | |
a7fb8440 TJ |
2284 | ftdi_error_return(-1, "set flow control failed"); |
2285 | ||
2286 | return 0; | |
2287 | } | |
2288 | ||
2289 | /** | |
fdb93a5e PJ |
2290 | Set XON/XOFF flowcontrol for ftdi chip |
2291 | ||
2292 | \param ftdi pointer to ftdi_context | |
2293 | \param xon character code used to resume transmission | |
2294 | \param xoff character code used to pause transmission | |
2295 | ||
2296 | \retval 0: all fine | |
2297 | \retval -1: set flow control failed | |
2298 | \retval -2: USB device unavailable | |
2299 | */ | |
2300 | int ftdi_setflowctrl_xonxoff(struct ftdi_context *ftdi, unsigned char xon, unsigned char xoff) | |
2301 | { | |
2302 | if (ftdi == NULL || ftdi->usb_dev == NULL) | |
2303 | ftdi_error_return(-2, "USB device unavailable"); | |
2304 | ||
2305 | uint16_t xonxoff = xon | (xoff << 8); | |
2306 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, | |
2307 | SIO_SET_FLOW_CTRL_REQUEST, xonxoff, (SIO_XON_XOFF_HS | ftdi->index), | |
2308 | NULL, 0, ftdi->usb_write_timeout) < 0) | |
2309 | ftdi_error_return(-1, "set flow control failed"); | |
2310 | ||
2311 | return 0; | |
2312 | } | |
2313 | ||
2314 | /** | |
a7fb8440 TJ |
2315 | Set dtr line |
2316 | ||
2317 | \param ftdi pointer to ftdi_context | |
2318 | \param state state to set line to (1 or 0) | |
2319 | ||
2320 | \retval 0: all fine | |
2321 | \retval -1: set dtr failed | |
22a1b5c1 | 2322 | \retval -2: USB device unavailable |
a7fb8440 TJ |
2323 | */ |
2324 | int ftdi_setdtr(struct ftdi_context *ftdi, int state) | |
2325 | { | |
2326 | unsigned short usb_val; | |
2327 | ||
22a1b5c1 TJ |
2328 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2329 | ftdi_error_return(-2, "USB device unavailable"); | |
2330 | ||
a7fb8440 TJ |
2331 | if (state) |
2332 | usb_val = SIO_SET_DTR_HIGH; | |
2333 | else | |
2334 | usb_val = SIO_SET_DTR_LOW; | |
2335 | ||
579b006f JZ |
2336 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
2337 | SIO_SET_MODEM_CTRL_REQUEST, usb_val, ftdi->index, | |
2338 | NULL, 0, ftdi->usb_write_timeout) < 0) | |
a7fb8440 TJ |
2339 | ftdi_error_return(-1, "set dtr failed"); |
2340 | ||
2341 | return 0; | |
2342 | } | |
2343 | ||
2344 | /** | |
2345 | Set rts line | |
2346 | ||
2347 | \param ftdi pointer to ftdi_context | |
2348 | \param state state to set line to (1 or 0) | |
2349 | ||
2350 | \retval 0: all fine | |
22a1b5c1 TJ |
2351 | \retval -1: set rts failed |
2352 | \retval -2: USB device unavailable | |
a7fb8440 TJ |
2353 | */ |
2354 | int ftdi_setrts(struct ftdi_context *ftdi, int state) | |
2355 | { | |
2356 | unsigned short usb_val; | |
2357 | ||
22a1b5c1 TJ |
2358 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2359 | ftdi_error_return(-2, "USB device unavailable"); | |
2360 | ||
a7fb8440 TJ |
2361 | if (state) |
2362 | usb_val = SIO_SET_RTS_HIGH; | |
2363 | else | |
2364 | usb_val = SIO_SET_RTS_LOW; | |
2365 | ||
579b006f JZ |
2366 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
2367 | SIO_SET_MODEM_CTRL_REQUEST, usb_val, ftdi->index, | |
2368 | NULL, 0, ftdi->usb_write_timeout) < 0) | |
a7fb8440 TJ |
2369 | ftdi_error_return(-1, "set of rts failed"); |
2370 | ||
2371 | return 0; | |
2372 | } | |
2373 | ||
1189b11a | 2374 | /** |
22a1b5c1 | 2375 | Set dtr and rts line in one pass |
9ecfef2a | 2376 | |
22a1b5c1 TJ |
2377 | \param ftdi pointer to ftdi_context |
2378 | \param dtr DTR state to set line to (1 or 0) | |
2379 | \param rts RTS state to set line to (1 or 0) | |
9ecfef2a | 2380 | |
22a1b5c1 TJ |
2381 | \retval 0: all fine |
2382 | \retval -1: set dtr/rts failed | |
2383 | \retval -2: USB device unavailable | |
9ecfef2a TJ |
2384 | */ |
2385 | int ftdi_setdtr_rts(struct ftdi_context *ftdi, int dtr, int rts) | |
2386 | { | |
2387 | unsigned short usb_val; | |
2388 | ||
22a1b5c1 TJ |
2389 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2390 | ftdi_error_return(-2, "USB device unavailable"); | |
2391 | ||
9ecfef2a | 2392 | if (dtr) |
22d12cda | 2393 | usb_val = SIO_SET_DTR_HIGH; |
9ecfef2a | 2394 | else |
22d12cda | 2395 | usb_val = SIO_SET_DTR_LOW; |
9ecfef2a TJ |
2396 | |
2397 | if (rts) | |
22d12cda | 2398 | usb_val |= SIO_SET_RTS_HIGH; |
9ecfef2a | 2399 | else |
22d12cda | 2400 | usb_val |= SIO_SET_RTS_LOW; |
9ecfef2a | 2401 | |
579b006f JZ |
2402 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
2403 | SIO_SET_MODEM_CTRL_REQUEST, usb_val, ftdi->index, | |
2404 | NULL, 0, ftdi->usb_write_timeout) < 0) | |
22d12cda | 2405 | ftdi_error_return(-1, "set of rts/dtr failed"); |
9ecfef2a TJ |
2406 | |
2407 | return 0; | |
2408 | } | |
2409 | ||
2410 | /** | |
1189b11a TJ |
2411 | Set the special event character |
2412 | ||
2413 | \param ftdi pointer to ftdi_context | |
2414 | \param eventch Event character | |
2415 | \param enable 0 to disable the event character, non-zero otherwise | |
2416 | ||
2417 | \retval 0: all fine | |
2418 | \retval -1: unable to set event character | |
22a1b5c1 | 2419 | \retval -2: USB device unavailable |
1189b11a TJ |
2420 | */ |
2421 | int ftdi_set_event_char(struct ftdi_context *ftdi, | |
22d12cda | 2422 | unsigned char eventch, unsigned char enable) |
1189b11a TJ |
2423 | { |
2424 | unsigned short usb_val; | |
2425 | ||
22a1b5c1 TJ |
2426 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2427 | ftdi_error_return(-2, "USB device unavailable"); | |
2428 | ||
1189b11a TJ |
2429 | usb_val = eventch; |
2430 | if (enable) | |
2431 | usb_val |= 1 << 8; | |
2432 | ||
579b006f | 2433 | 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 |
2434 | ftdi_error_return(-1, "setting event character failed"); |
2435 | ||
2436 | return 0; | |
2437 | } | |
2438 | ||
2439 | /** | |
2440 | Set error character | |
2441 | ||
2442 | \param ftdi pointer to ftdi_context | |
2443 | \param errorch Error character | |
2444 | \param enable 0 to disable the error character, non-zero otherwise | |
2445 | ||
2446 | \retval 0: all fine | |
2447 | \retval -1: unable to set error character | |
22a1b5c1 | 2448 | \retval -2: USB device unavailable |
1189b11a TJ |
2449 | */ |
2450 | int ftdi_set_error_char(struct ftdi_context *ftdi, | |
22d12cda | 2451 | unsigned char errorch, unsigned char enable) |
1189b11a TJ |
2452 | { |
2453 | unsigned short usb_val; | |
2454 | ||
22a1b5c1 TJ |
2455 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
2456 | ftdi_error_return(-2, "USB device unavailable"); | |
2457 | ||
1189b11a TJ |
2458 | usb_val = errorch; |
2459 | if (enable) | |
2460 | usb_val |= 1 << 8; | |
2461 | ||
579b006f | 2462 | 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 |
2463 | ftdi_error_return(-1, "setting error character failed"); |
2464 | ||
2465 | return 0; | |
2466 | } | |
2467 | ||
2468 | /** | |
44f41f11 | 2469 | Init eeprom with default values for the connected device |
a35aa9bd | 2470 | \param ftdi pointer to ftdi_context |
f14f84d3 UB |
2471 | \param manufacturer String to use as Manufacturer |
2472 | \param product String to use as Product description | |
2473 | \param serial String to use as Serial number description | |
4e74064b | 2474 | |
f14f84d3 UB |
2475 | \retval 0: all fine |
2476 | \retval -1: No struct ftdi_context | |
2477 | \retval -2: No struct ftdi_eeprom | |
44f41f11 | 2478 | \retval -3: No connected device or device not yet opened |
1941414d | 2479 | */ |
f14f84d3 | 2480 | int ftdi_eeprom_initdefaults(struct ftdi_context *ftdi, char * manufacturer, |
56ac0383 | 2481 | char * product, char * serial) |
a8f46ddc | 2482 | { |
c0a96aed | 2483 | struct ftdi_eeprom *eeprom; |
f505134f | 2484 | |
c0a96aed | 2485 | if (ftdi == NULL) |
f14f84d3 | 2486 | ftdi_error_return(-1, "No struct ftdi_context"); |
c0a96aed UB |
2487 | |
2488 | if (ftdi->eeprom == NULL) | |
56ac0383 | 2489 | ftdi_error_return(-2,"No struct ftdi_eeprom"); |
22a1b5c1 | 2490 | |
c0a96aed | 2491 | eeprom = ftdi->eeprom; |
a02587d5 | 2492 | memset(eeprom, 0, sizeof(struct ftdi_eeprom)); |
c0a96aed | 2493 | |
44f41f11 UB |
2494 | if (ftdi->usb_dev == NULL) |
2495 | ftdi_error_return(-3, "No connected device or device not yet opened"); | |
2496 | ||
f396dbad | 2497 | eeprom->vendor_id = 0x0403; |
d4b5af27 | 2498 | eeprom->use_serial = 1; |
56ac0383 TJ |
2499 | if ((ftdi->type == TYPE_AM) || (ftdi->type == TYPE_BM) || |
2500 | (ftdi->type == TYPE_R)) | |
a02587d5 | 2501 | eeprom->product_id = 0x6001; |
c7e4c09e UB |
2502 | else if (ftdi->type == TYPE_4232H) |
2503 | eeprom->product_id = 0x6011; | |
2504 | else if (ftdi->type == TYPE_232H) | |
2505 | eeprom->product_id = 0x6014; | |
2f80efc2 NP |
2506 | else if (ftdi->type == TYPE_230X) |
2507 | eeprom->product_id = 0x6015; | |
a02587d5 UB |
2508 | else |
2509 | eeprom->product_id = 0x6010; | |
2f80efc2 | 2510 | |
b1859923 UB |
2511 | if (ftdi->type == TYPE_AM) |
2512 | eeprom->usb_version = 0x0101; | |
2513 | else | |
2514 | eeprom->usb_version = 0x0200; | |
a886436a | 2515 | eeprom->max_power = 100; |
d9f0cce7 | 2516 | |
74e8e79d UB |
2517 | if (eeprom->manufacturer) |
2518 | free (eeprom->manufacturer); | |
b8aa7b35 | 2519 | eeprom->manufacturer = NULL; |
74e8e79d UB |
2520 | if (manufacturer) |
2521 | { | |
c45d2630 | 2522 | eeprom->manufacturer = (char *)malloc(strlen(manufacturer)+1); |
74e8e79d UB |
2523 | if (eeprom->manufacturer) |
2524 | strcpy(eeprom->manufacturer, manufacturer); | |
2525 | } | |
2526 | ||
2527 | if (eeprom->product) | |
2528 | free (eeprom->product); | |
b8aa7b35 | 2529 | eeprom->product = NULL; |
10771971 | 2530 | if(product) |
74e8e79d | 2531 | { |
c45d2630 | 2532 | eeprom->product = (char *)malloc(strlen(product)+1); |
74e8e79d UB |
2533 | if (eeprom->product) |
2534 | strcpy(eeprom->product, product); | |
2535 | } | |
6a6fcd89 UB |
2536 | else |
2537 | { | |
2538 | const char* default_product; | |
2539 | switch(ftdi->type) | |
2540 | { | |
74387f27 TJ |
2541 | case TYPE_AM: default_product = "AM"; break; |
2542 | case TYPE_BM: default_product = "BM"; break; | |
2543 | case TYPE_2232C: default_product = "Dual RS232"; break; | |
2544 | case TYPE_R: default_product = "FT232R USB UART"; break; | |
2545 | case TYPE_2232H: default_product = "Dual RS232-HS"; break; | |
2546 | case TYPE_4232H: default_product = "FT4232H"; break; | |
2547 | case TYPE_232H: default_product = "Single-RS232-HS"; break; | |
2548 | case TYPE_230X: default_product = "FT230X Basic UART"; break; | |
2549 | default: | |
2550 | ftdi_error_return(-3, "Unknown chip type"); | |
6a6fcd89 | 2551 | } |
c45d2630 | 2552 | eeprom->product = (char *)malloc(strlen(default_product) +1); |
6a6fcd89 UB |
2553 | if (eeprom->product) |
2554 | strcpy(eeprom->product, default_product); | |
2555 | } | |
74e8e79d UB |
2556 | |
2557 | if (eeprom->serial) | |
2558 | free (eeprom->serial); | |
b8aa7b35 | 2559 | eeprom->serial = NULL; |
74e8e79d UB |
2560 | if (serial) |
2561 | { | |
c45d2630 | 2562 | eeprom->serial = (char *)malloc(strlen(serial)+1); |
74e8e79d UB |
2563 | if (eeprom->serial) |
2564 | strcpy(eeprom->serial, serial); | |
2565 | } | |
2566 | ||
56ac0383 | 2567 | if (ftdi->type == TYPE_R) |
a4980043 | 2568 | { |
a886436a | 2569 | eeprom->max_power = 90; |
a02587d5 | 2570 | eeprom->size = 0x80; |
a4980043 UB |
2571 | eeprom->cbus_function[0] = CBUS_TXLED; |
2572 | eeprom->cbus_function[1] = CBUS_RXLED; | |
2573 | eeprom->cbus_function[2] = CBUS_TXDEN; | |
2574 | eeprom->cbus_function[3] = CBUS_PWREN; | |
2575 | eeprom->cbus_function[4] = CBUS_SLEEP; | |
2576 | } | |
2f80efc2 NP |
2577 | else if (ftdi->type == TYPE_230X) |
2578 | { | |
2579 | eeprom->max_power = 90; | |
2580 | eeprom->size = 0x100; | |
add00ad6 RH |
2581 | eeprom->cbus_function[0] = CBUSX_TXDEN; |
2582 | eeprom->cbus_function[1] = CBUSX_RXLED; | |
2583 | eeprom->cbus_function[2] = CBUSX_TXLED; | |
2584 | eeprom->cbus_function[3] = CBUSX_SLEEP; | |
2f80efc2 | 2585 | } |
a02587d5 | 2586 | else |
263d3ba0 UB |
2587 | { |
2588 | if(ftdi->type == TYPE_232H) | |
2589 | { | |
2590 | int i; | |
2591 | for (i=0; i<10; i++) | |
2592 | eeprom->cbus_function[i] = CBUSH_TRISTATE; | |
2593 | } | |
a02587d5 | 2594 | eeprom->size = -1; |
263d3ba0 | 2595 | } |
68e78641 JS |
2596 | switch (ftdi->type) |
2597 | { | |
2598 | case TYPE_AM: | |
2599 | eeprom->release_number = 0x0200; | |
2600 | break; | |
2601 | case TYPE_BM: | |
2602 | eeprom->release_number = 0x0400; | |
2603 | break; | |
2604 | case TYPE_2232C: | |
2605 | eeprom->release_number = 0x0500; | |
2606 | break; | |
2607 | case TYPE_R: | |
2608 | eeprom->release_number = 0x0600; | |
2609 | break; | |
2610 | case TYPE_2232H: | |
2611 | eeprom->release_number = 0x0700; | |
2612 | break; | |
2613 | case TYPE_4232H: | |
2614 | eeprom->release_number = 0x0800; | |
2615 | break; | |
2616 | case TYPE_232H: | |
2617 | eeprom->release_number = 0x0900; | |
2618 | break; | |
2f80efc2 NP |
2619 | case TYPE_230X: |
2620 | eeprom->release_number = 0x1000; | |
2621 | break; | |
68e78641 JS |
2622 | default: |
2623 | eeprom->release_number = 0x00; | |
2624 | } | |
f14f84d3 | 2625 | return 0; |
b8aa7b35 | 2626 | } |
878f0c6a NP |
2627 | |
2628 | int ftdi_eeprom_set_strings(struct ftdi_context *ftdi, char * manufacturer, | |
74387f27 | 2629 | char * product, char * serial) |
878f0c6a NP |
2630 | { |
2631 | struct ftdi_eeprom *eeprom; | |
2632 | ||
2633 | if (ftdi == NULL) | |
2634 | ftdi_error_return(-1, "No struct ftdi_context"); | |
2635 | ||
2636 | if (ftdi->eeprom == NULL) | |
2637 | ftdi_error_return(-2,"No struct ftdi_eeprom"); | |
2638 | ||
2639 | eeprom = ftdi->eeprom; | |
2640 | ||
2641 | if (ftdi->usb_dev == NULL) | |
2642 | ftdi_error_return(-3, "No connected device or device not yet opened"); | |
2643 | ||
74387f27 TJ |
2644 | if (manufacturer) |
2645 | { | |
878f0c6a NP |
2646 | if (eeprom->manufacturer) |
2647 | free (eeprom->manufacturer); | |
c45d2630 | 2648 | eeprom->manufacturer = (char *)malloc(strlen(manufacturer)+1); |
878f0c6a NP |
2649 | if (eeprom->manufacturer) |
2650 | strcpy(eeprom->manufacturer, manufacturer); | |
2651 | } | |
2652 | ||
74387f27 TJ |
2653 | if(product) |
2654 | { | |
878f0c6a NP |
2655 | if (eeprom->product) |
2656 | free (eeprom->product); | |
c45d2630 | 2657 | eeprom->product = (char *)malloc(strlen(product)+1); |
878f0c6a NP |
2658 | if (eeprom->product) |
2659 | strcpy(eeprom->product, product); | |
2660 | } | |
2661 | ||
74387f27 TJ |
2662 | if (serial) |
2663 | { | |
878f0c6a NP |
2664 | if (eeprom->serial) |
2665 | free (eeprom->serial); | |
c45d2630 | 2666 | eeprom->serial = (char *)malloc(strlen(serial)+1); |
74387f27 TJ |
2667 | if (eeprom->serial) |
2668 | { | |
878f0c6a NP |
2669 | strcpy(eeprom->serial, serial); |
2670 | eeprom->use_serial = 1; | |
2671 | } | |
2672 | } | |
2673 | return 0; | |
2674 | } | |
2675 | ||
934173a3 TJ |
2676 | /** |
2677 | Return device ID strings from the eeprom. Device needs to be connected. | |
2678 | ||
2679 | The parameters manufacturer, description and serial may be NULL | |
2680 | or pointer to buffers to store the fetched strings. | |
2681 | ||
2682 | \param ftdi pointer to ftdi_context | |
2683 | \param manufacturer Store manufacturer string here if not NULL | |
2684 | \param mnf_len Buffer size of manufacturer string | |
2685 | \param product Store product description string here if not NULL | |
2686 | \param prod_len Buffer size of product description string | |
2687 | \param serial Store serial string here if not NULL | |
2688 | \param serial_len Buffer size of serial string | |
2689 | ||
2690 | \retval 0: all fine | |
2691 | \retval -1: ftdi context invalid | |
2692 | \retval -2: ftdi eeprom buffer invalid | |
934173a3 | 2693 | */ |
c9eeb2f1 AM |
2694 | int ftdi_eeprom_get_strings(struct ftdi_context *ftdi, |
2695 | char *manufacturer, int mnf_len, | |
2696 | char *product, int prod_len, | |
2697 | char *serial, int serial_len) | |
2698 | { | |
2699 | struct ftdi_eeprom *eeprom; | |
2700 | ||
2701 | if (ftdi == NULL) | |
2702 | ftdi_error_return(-1, "No struct ftdi_context"); | |
c9eeb2f1 | 2703 | if (ftdi->eeprom == NULL) |
4effe148 | 2704 | ftdi_error_return(-2, "No struct ftdi_eeprom"); |
c9eeb2f1 AM |
2705 | |
2706 | eeprom = ftdi->eeprom; | |
2707 | ||
c9eeb2f1 AM |
2708 | if (manufacturer) |
2709 | { | |
2710 | strncpy(manufacturer, eeprom->manufacturer, mnf_len); | |
2711 | if (mnf_len > 0) | |
2712 | manufacturer[mnf_len - 1] = '\0'; | |
2713 | } | |
2714 | ||
2715 | if (product) | |
2716 | { | |
2717 | strncpy(product, eeprom->product, prod_len); | |
2718 | if (prod_len > 0) | |
2719 | product[prod_len - 1] = '\0'; | |
2720 | } | |
2721 | ||
2722 | if (serial) | |
2723 | { | |
2724 | strncpy(serial, eeprom->serial, serial_len); | |
2725 | if (serial_len > 0) | |
2726 | serial[serial_len - 1] = '\0'; | |
2727 | } | |
2728 | ||
2729 | return 0; | |
2730 | } | |
878f0c6a | 2731 | |
add00ad6 | 2732 | /*FTD2XX doesn't check for values not fitting in the ACBUS Signal options*/ |
263d3ba0 UB |
2733 | void set_ft232h_cbus(struct ftdi_eeprom *eeprom, unsigned char * output) |
2734 | { | |
2735 | int i; | |
74387f27 | 2736 | for(i=0; i<5; i++) |
263d3ba0 UB |
2737 | { |
2738 | int mode_low, mode_high; | |
2739 | if (eeprom->cbus_function[2*i]> CBUSH_CLK7_5) | |
2740 | mode_low = CBUSH_TRISTATE; | |
2741 | else | |
2742 | mode_low = eeprom->cbus_function[2*i]; | |
2743 | if (eeprom->cbus_function[2*i+1]> CBUSH_CLK7_5) | |
2744 | mode_high = CBUSH_TRISTATE; | |
2745 | else | |
f37a1524 | 2746 | mode_high = eeprom->cbus_function[2*i+1]; |
b8aa7b35 | 2747 | |
f37a1524 | 2748 | output[0x18+i] = (mode_high <<4) | mode_low; |
263d3ba0 UB |
2749 | } |
2750 | } | |
c8f69686 UB |
2751 | /* Return the bits for the encoded EEPROM Structure of a requested Mode |
2752 | * | |
2753 | */ | |
2754 | static unsigned char type2bit(unsigned char type, enum ftdi_chip_type chip) | |
2755 | { | |
2756 | switch (chip) | |
2757 | { | |
74387f27 TJ |
2758 | case TYPE_2232H: |
2759 | case TYPE_2232C: | |
c8f69686 | 2760 | { |
74387f27 TJ |
2761 | switch (type) |
2762 | { | |
2763 | case CHANNEL_IS_UART: return 0; | |
2764 | case CHANNEL_IS_FIFO: return 0x01; | |
2765 | case CHANNEL_IS_OPTO: return 0x02; | |
2766 | case CHANNEL_IS_CPU : return 0x04; | |
2767 | default: return 0; | |
2768 | } | |
c8f69686 | 2769 | } |
74387f27 | 2770 | case TYPE_232H: |
c8f69686 | 2771 | { |
74387f27 TJ |
2772 | switch (type) |
2773 | { | |
2774 | case CHANNEL_IS_UART : return 0; | |
2775 | case CHANNEL_IS_FIFO : return 0x01; | |
2776 | case CHANNEL_IS_OPTO : return 0x02; | |
2777 | case CHANNEL_IS_CPU : return 0x04; | |
2778 | case CHANNEL_IS_FT1284 : return 0x08; | |
2779 | default: return 0; | |
2780 | } | |
c8f69686 | 2781 | } |
6f9f969d RF |
2782 | case TYPE_R: |
2783 | { | |
2784 | switch (type) | |
2785 | { | |
2786 | case CHANNEL_IS_UART : return 0; | |
2787 | case CHANNEL_IS_FIFO : return 0x01; | |
2788 | default: return 0; | |
2789 | } | |
2790 | } | |
74387f27 TJ |
2791 | case TYPE_230X: /* FT230X is only UART */ |
2792 | default: return 0; | |
c8f69686 UB |
2793 | } |
2794 | return 0; | |
74387f27 | 2795 | } |
c8f69686 | 2796 | |
1941414d | 2797 | /** |
a35aa9bd | 2798 | Build binary buffer from ftdi_eeprom structure. |
22a1b5c1 | 2799 | Output is suitable for ftdi_write_eeprom(). |
b8aa7b35 | 2800 | |
a35aa9bd | 2801 | \param ftdi pointer to ftdi_context |
1941414d | 2802 | |
516ebfb1 | 2803 | \retval >=0: size of eeprom user area in bytes |
22a1b5c1 | 2804 | \retval -1: eeprom size (128 bytes) exceeded by custom strings |
2c1e2bde TJ |
2805 | \retval -2: Invalid eeprom or ftdi pointer |
2806 | \retval -3: Invalid cbus function setting (FIXME: Not in the code?) | |
2807 | \retval -4: Chip doesn't support invert (FIXME: Not in the code?) | |
2808 | \retval -5: Chip doesn't support high current drive (FIXME: Not in the code?) | |
2b9a3c82 | 2809 | \retval -6: No connected EEPROM or EEPROM Type unknown |
b8aa7b35 | 2810 | */ |
a35aa9bd | 2811 | int ftdi_eeprom_build(struct ftdi_context *ftdi) |
a8f46ddc | 2812 | { |
e2bbd9af | 2813 | unsigned char i, j, eeprom_size_mask; |
b8aa7b35 TJ |
2814 | unsigned short checksum, value; |
2815 | unsigned char manufacturer_size = 0, product_size = 0, serial_size = 0; | |
6e962b9a | 2816 | int user_area_size, free_start, free_end; |
c0a96aed | 2817 | struct ftdi_eeprom *eeprom; |
a35aa9bd | 2818 | unsigned char * output; |
b8aa7b35 | 2819 | |
c0a96aed | 2820 | if (ftdi == NULL) |
cc9c9d58 | 2821 | ftdi_error_return(-2,"No context"); |
c0a96aed | 2822 | if (ftdi->eeprom == NULL) |
cc9c9d58 | 2823 | ftdi_error_return(-2,"No eeprom structure"); |
c0a96aed UB |
2824 | |
2825 | eeprom= ftdi->eeprom; | |
a35aa9bd | 2826 | output = eeprom->buf; |
22a1b5c1 | 2827 | |
56ac0383 | 2828 | if (eeprom->chip == -1) |
2c1e2bde | 2829 | ftdi_error_return(-6,"No connected EEPROM or EEPROM type unknown"); |
2b9a3c82 | 2830 | |
74387f27 TJ |
2831 | if (eeprom->size == -1) |
2832 | { | |
2f80efc2 NP |
2833 | if ((eeprom->chip == 0x56) || (eeprom->chip == 0x66)) |
2834 | eeprom->size = 0x100; | |
2835 | else | |
2836 | eeprom->size = 0x80; | |
2837 | } | |
f75bf139 | 2838 | |
b8aa7b35 | 2839 | if (eeprom->manufacturer != NULL) |
d9f0cce7 | 2840 | manufacturer_size = strlen(eeprom->manufacturer); |
b8aa7b35 | 2841 | if (eeprom->product != NULL) |
d9f0cce7 | 2842 | product_size = strlen(eeprom->product); |
b8aa7b35 | 2843 | if (eeprom->serial != NULL) |
d9f0cce7 | 2844 | serial_size = strlen(eeprom->serial); |
b8aa7b35 | 2845 | |
814710ba TJ |
2846 | // eeprom size check |
2847 | switch (ftdi->type) | |
2848 | { | |
2849 | case TYPE_AM: | |
2850 | case TYPE_BM: | |
6e962b9a | 2851 | case TYPE_R: |
814710ba TJ |
2852 | user_area_size = 96; // base size for strings (total of 48 characters) |
2853 | break; | |
2854 | case TYPE_2232C: | |
56ac0383 TJ |
2855 | user_area_size = 90; // two extra config bytes and 4 bytes PnP stuff |
2856 | break; | |
2f80efc2 | 2857 | case TYPE_230X: |
56ac0383 TJ |
2858 | user_area_size = 88; // four extra config bytes + 4 bytes PnP stuff |
2859 | break; | |
814710ba TJ |
2860 | case TYPE_2232H: // six extra config bytes + 4 bytes PnP stuff |
2861 | case TYPE_4232H: | |
56ac0383 | 2862 | user_area_size = 86; |
118c4561 | 2863 | break; |
c1c3d564 UB |
2864 | case TYPE_232H: |
2865 | user_area_size = 80; | |
2866 | break; | |
2c1e2bde TJ |
2867 | default: |
2868 | user_area_size = 0; | |
56ac0383 | 2869 | break; |
665cda04 UB |
2870 | } |
2871 | user_area_size -= (manufacturer_size + product_size + serial_size) * 2; | |
814710ba | 2872 | |
516ebfb1 TJ |
2873 | if (user_area_size < 0) |
2874 | ftdi_error_return(-1,"eeprom size exceeded"); | |
b8aa7b35 TJ |
2875 | |
2876 | // empty eeprom | |
74387f27 TJ |
2877 | if (ftdi->type == TYPE_230X) |
2878 | { | |
2f80efc2 NP |
2879 | /* FT230X have a reserved section in the middle of the MTP, |
2880 | which cannot be written to, but must be included in the checksum */ | |
2881 | memset(ftdi->eeprom->buf, 0, 0x80); | |
2882 | memset((ftdi->eeprom->buf + 0xa0), 0, (FTDI_MAX_EEPROM_SIZE - 0xa0)); | |
74387f27 TJ |
2883 | } |
2884 | else | |
2885 | { | |
2f80efc2 NP |
2886 | memset(ftdi->eeprom->buf, 0, FTDI_MAX_EEPROM_SIZE); |
2887 | } | |
b8aa7b35 | 2888 | |
93738c79 UB |
2889 | // Bytes and Bits set for all Types |
2890 | ||
b8aa7b35 TJ |
2891 | // Addr 02: Vendor ID |
2892 | output[0x02] = eeprom->vendor_id; | |
2893 | output[0x03] = eeprom->vendor_id >> 8; | |
2894 | ||
2895 | // Addr 04: Product ID | |
2896 | output[0x04] = eeprom->product_id; | |
2897 | output[0x05] = eeprom->product_id >> 8; | |
2898 | ||
2899 | // Addr 06: Device release number (0400h for BM features) | |
68e78641 JS |
2900 | output[0x06] = eeprom->release_number; |
2901 | output[0x07] = eeprom->release_number >> 8; | |
b8aa7b35 TJ |
2902 | |
2903 | // Addr 08: Config descriptor | |
8fae3e8e TJ |
2904 | // Bit 7: always 1 |
2905 | // Bit 6: 1 if this device is self powered, 0 if bus powered | |
2906 | // Bit 5: 1 if this device uses remote wakeup | |
37186e34 | 2907 | // Bit 4-0: reserved - 0 |
5a1dcd55 | 2908 | j = 0x80; |
afb90824 | 2909 | if (eeprom->self_powered) |
5a1dcd55 | 2910 | j |= 0x40; |
afb90824 | 2911 | if (eeprom->remote_wakeup) |
5a1dcd55 | 2912 | j |= 0x20; |
b8aa7b35 TJ |
2913 | output[0x08] = j; |
2914 | ||
2915 | // Addr 09: Max power consumption: max power = value * 2 mA | |
a7c32c59 | 2916 | output[0x09] = eeprom->max_power / MAX_POWER_MILLIAMP_PER_UNIT; |
d9f0cce7 | 2917 | |
2f80efc2 | 2918 | if ((ftdi->type != TYPE_AM) && (ftdi->type != TYPE_230X)) |
93738c79 UB |
2919 | { |
2920 | // Addr 0A: Chip configuration | |
2921 | // Bit 7: 0 - reserved | |
2922 | // Bit 6: 0 - reserved | |
2923 | // Bit 5: 0 - reserved | |
56ac0383 | 2924 | // Bit 4: 1 - Change USB version |
93738c79 UB |
2925 | // Bit 3: 1 - Use the serial number string |
2926 | // Bit 2: 1 - Enable suspend pull downs for lower power | |
2927 | // Bit 1: 1 - Out EndPoint is Isochronous | |
2928 | // Bit 0: 1 - In EndPoint is Isochronous | |
2929 | // | |
2930 | j = 0; | |
afb90824 | 2931 | if (eeprom->in_is_isochronous) |
93738c79 | 2932 | j = j | 1; |
afb90824 | 2933 | if (eeprom->out_is_isochronous) |
93738c79 UB |
2934 | j = j | 2; |
2935 | output[0x0A] = j; | |
2936 | } | |
f505134f | 2937 | |
b8aa7b35 | 2938 | // Dynamic content |
93738c79 UB |
2939 | // Strings start at 0x94 (TYPE_AM, TYPE_BM) |
2940 | // 0x96 (TYPE_2232C), 0x98 (TYPE_R) and 0x9a (TYPE_x232H) | |
c7e4c09e | 2941 | // 0xa0 (TYPE_232H) |
93738c79 | 2942 | i = 0; |
56ac0383 TJ |
2943 | switch (ftdi->type) |
2944 | { | |
2945 | case TYPE_2232H: | |
2946 | case TYPE_4232H: | |
2947 | i += 2; | |
2948 | case TYPE_R: | |
2949 | i += 2; | |
2950 | case TYPE_2232C: | |
2951 | i += 2; | |
2952 | case TYPE_AM: | |
2953 | case TYPE_BM: | |
2954 | i += 0x94; | |
2f80efc2 | 2955 | break; |
fa3032f0 | 2956 | case TYPE_232H: |
2f80efc2 NP |
2957 | case TYPE_230X: |
2958 | i = 0xa0; | |
2959 | break; | |
f505134f | 2960 | } |
93738c79 | 2961 | /* Wrap around 0x80 for 128 byte EEPROMS (Internale and 93x46) */ |
e2bbd9af | 2962 | eeprom_size_mask = eeprom->size -1; |
6e962b9a | 2963 | free_end = i & eeprom_size_mask; |
c201f80f | 2964 | |
93738c79 UB |
2965 | // Addr 0E: Offset of the manufacturer string + 0x80, calculated later |
2966 | // Addr 0F: Length of manufacturer string | |
22d12cda | 2967 | // Output manufacturer |
93738c79 | 2968 | output[0x0E] = i; // calculate offset |
e2bbd9af TJ |
2969 | output[i & eeprom_size_mask] = manufacturer_size*2 + 2, i++; |
2970 | output[i & eeprom_size_mask] = 0x03, i++; // type: string | |
22d12cda TJ |
2971 | for (j = 0; j < manufacturer_size; j++) |
2972 | { | |
e2bbd9af TJ |
2973 | output[i & eeprom_size_mask] = eeprom->manufacturer[j], i++; |
2974 | output[i & eeprom_size_mask] = 0x00, i++; | |
b8aa7b35 | 2975 | } |
93738c79 | 2976 | output[0x0F] = manufacturer_size*2 + 2; |
b8aa7b35 | 2977 | |
93738c79 UB |
2978 | // Addr 10: Offset of the product string + 0x80, calculated later |
2979 | // Addr 11: Length of product string | |
c201f80f | 2980 | output[0x10] = i | 0x80; // calculate offset |
e2bbd9af TJ |
2981 | output[i & eeprom_size_mask] = product_size*2 + 2, i++; |
2982 | output[i & eeprom_size_mask] = 0x03, i++; | |
22d12cda TJ |
2983 | for (j = 0; j < product_size; j++) |
2984 | { | |
e2bbd9af TJ |
2985 | output[i & eeprom_size_mask] = eeprom->product[j], i++; |
2986 | output[i & eeprom_size_mask] = 0x00, i++; | |
b8aa7b35 | 2987 | } |
93738c79 | 2988 | output[0x11] = product_size*2 + 2; |
37186e34 | 2989 | |
93738c79 UB |
2990 | // Addr 12: Offset of the serial string + 0x80, calculated later |
2991 | // Addr 13: Length of serial string | |
c201f80f | 2992 | output[0x12] = i | 0x80; // calculate offset |
e2bbd9af TJ |
2993 | output[i & eeprom_size_mask] = serial_size*2 + 2, i++; |
2994 | output[i & eeprom_size_mask] = 0x03, i++; | |
22d12cda TJ |
2995 | for (j = 0; j < serial_size; j++) |
2996 | { | |
e2bbd9af TJ |
2997 | output[i & eeprom_size_mask] = eeprom->serial[j], i++; |
2998 | output[i & eeprom_size_mask] = 0x00, i++; | |
b8aa7b35 | 2999 | } |
c2700d6d TJ |
3000 | |
3001 | // Legacy port name and PnP fields for FT2232 and newer chips | |
3002 | if (ftdi->type > TYPE_BM) | |
3003 | { | |
3004 | output[i & eeprom_size_mask] = 0x02; /* as seen when written with FTD2XX */ | |
3005 | i++; | |
3006 | output[i & eeprom_size_mask] = 0x03; /* as seen when written with FTD2XX */ | |
3007 | i++; | |
3008 | output[i & eeprom_size_mask] = eeprom->is_not_pnp; /* as seen when written with FTD2XX */ | |
3009 | i++; | |
3010 | } | |
802a949e | 3011 | |
93738c79 | 3012 | output[0x13] = serial_size*2 + 2; |
b8aa7b35 | 3013 | |
56ac0383 | 3014 | if (ftdi->type > TYPE_AM) /* use_serial not used in AM devices */ |
bf2f6ef7 | 3015 | { |
d4b5af27 | 3016 | if (eeprom->use_serial) |
bf2f6ef7 UB |
3017 | output[0x0A] |= USE_SERIAL_NUM; |
3018 | else | |
3019 | output[0x0A] &= ~USE_SERIAL_NUM; | |
3020 | } | |
3802140c UB |
3021 | |
3022 | /* Bytes and Bits specific to (some) types | |
3023 | Write linear, as this allows easier fixing*/ | |
56ac0383 TJ |
3024 | switch (ftdi->type) |
3025 | { | |
3026 | case TYPE_AM: | |
3027 | break; | |
3028 | case TYPE_BM: | |
3029 | output[0x0C] = eeprom->usb_version & 0xff; | |
3030 | output[0x0D] = (eeprom->usb_version>>8) & 0xff; | |
3986243d | 3031 | if (eeprom->use_usb_version) |
56ac0383 TJ |
3032 | output[0x0A] |= USE_USB_VERSION_BIT; |
3033 | else | |
3034 | output[0x0A] &= ~USE_USB_VERSION_BIT; | |
caec1294 | 3035 | |
56ac0383 TJ |
3036 | break; |
3037 | case TYPE_2232C: | |
3802140c | 3038 | |
c8f69686 | 3039 | output[0x00] = type2bit(eeprom->channel_a_type, TYPE_2232C); |
56ac0383 TJ |
3040 | if ( eeprom->channel_a_driver == DRIVER_VCP) |
3041 | output[0x00] |= DRIVER_VCP; | |
3042 | else | |
3043 | output[0x00] &= ~DRIVER_VCP; | |
4e74064b | 3044 | |
56ac0383 TJ |
3045 | if ( eeprom->high_current_a == HIGH_CURRENT_DRIVE) |
3046 | output[0x00] |= HIGH_CURRENT_DRIVE; | |
3047 | else | |
3048 | output[0x00] &= ~HIGH_CURRENT_DRIVE; | |
3802140c | 3049 | |
c8f69686 | 3050 | output[0x01] = type2bit(eeprom->channel_b_type, TYPE_2232C); |
56ac0383 TJ |
3051 | if ( eeprom->channel_b_driver == DRIVER_VCP) |
3052 | output[0x01] |= DRIVER_VCP; | |
3053 | else | |
3054 | output[0x01] &= ~DRIVER_VCP; | |
4e74064b | 3055 | |
56ac0383 TJ |
3056 | if ( eeprom->high_current_b == HIGH_CURRENT_DRIVE) |
3057 | output[0x01] |= HIGH_CURRENT_DRIVE; | |
3058 | else | |
3059 | output[0x01] &= ~HIGH_CURRENT_DRIVE; | |
3802140c | 3060 | |
afb90824 | 3061 | if (eeprom->in_is_isochronous) |
56ac0383 TJ |
3062 | output[0x0A] |= 0x1; |
3063 | else | |
3064 | output[0x0A] &= ~0x1; | |
afb90824 | 3065 | if (eeprom->out_is_isochronous) |
56ac0383 TJ |
3066 | output[0x0A] |= 0x2; |
3067 | else | |
3068 | output[0x0A] &= ~0x2; | |
afb90824 | 3069 | if (eeprom->suspend_pull_downs) |
56ac0383 TJ |
3070 | output[0x0A] |= 0x4; |
3071 | else | |
3072 | output[0x0A] &= ~0x4; | |
3986243d | 3073 | if (eeprom->use_usb_version) |
56ac0383 TJ |
3074 | output[0x0A] |= USE_USB_VERSION_BIT; |
3075 | else | |
3076 | output[0x0A] &= ~USE_USB_VERSION_BIT; | |
4e74064b | 3077 | |
56ac0383 TJ |
3078 | output[0x0C] = eeprom->usb_version & 0xff; |
3079 | output[0x0D] = (eeprom->usb_version>>8) & 0xff; | |
3080 | output[0x14] = eeprom->chip; | |
3081 | break; | |
3082 | case TYPE_R: | |
6f9f969d | 3083 | output[0x00] = type2bit(eeprom->channel_a_type, TYPE_R); |
56ac0383 TJ |
3084 | if (eeprom->high_current == HIGH_CURRENT_DRIVE_R) |
3085 | output[0x00] |= HIGH_CURRENT_DRIVE_R; | |
08518f8e RA |
3086 | if (eeprom->external_oscillator) |
3087 | output[0x00] |= 0x02; | |
56ac0383 | 3088 | output[0x01] = 0x40; /* Hard coded Endpoint Size*/ |
4e74064b | 3089 | |
afb90824 | 3090 | if (eeprom->suspend_pull_downs) |
56ac0383 TJ |
3091 | output[0x0A] |= 0x4; |
3092 | else | |
3093 | output[0x0A] &= ~0x4; | |
3094 | output[0x0B] = eeprom->invert; | |
3095 | output[0x0C] = eeprom->usb_version & 0xff; | |
3096 | output[0x0D] = (eeprom->usb_version>>8) & 0xff; | |
4e74064b | 3097 | |
add00ad6 | 3098 | if (eeprom->cbus_function[0] > CBUS_BB_RD) |
56ac0383 TJ |
3099 | output[0x14] = CBUS_TXLED; |
3100 | else | |
3101 | output[0x14] = eeprom->cbus_function[0]; | |
4e74064b | 3102 | |
add00ad6 | 3103 | if (eeprom->cbus_function[1] > CBUS_BB_RD) |
56ac0383 TJ |
3104 | output[0x14] |= CBUS_RXLED<<4; |
3105 | else | |
3106 | output[0x14] |= eeprom->cbus_function[1]<<4; | |
4e74064b | 3107 | |
add00ad6 | 3108 | if (eeprom->cbus_function[2] > CBUS_BB_RD) |
56ac0383 TJ |
3109 | output[0x15] = CBUS_TXDEN; |
3110 | else | |
3111 | output[0x15] = eeprom->cbus_function[2]; | |
4e74064b | 3112 | |
add00ad6 | 3113 | if (eeprom->cbus_function[3] > CBUS_BB_RD) |
56ac0383 TJ |
3114 | output[0x15] |= CBUS_PWREN<<4; |
3115 | else | |
3116 | output[0x15] |= eeprom->cbus_function[3]<<4; | |
4e74064b | 3117 | |
56ac0383 TJ |
3118 | if (eeprom->cbus_function[4] > CBUS_CLK6) |
3119 | output[0x16] = CBUS_SLEEP; | |
3120 | else | |
3121 | output[0x16] = eeprom->cbus_function[4]; | |
3122 | break; | |
3123 | case TYPE_2232H: | |
c8f69686 | 3124 | output[0x00] = type2bit(eeprom->channel_a_type, TYPE_2232H); |
56ac0383 TJ |
3125 | if ( eeprom->channel_a_driver == DRIVER_VCP) |
3126 | output[0x00] |= DRIVER_VCP; | |
3127 | else | |
3128 | output[0x00] &= ~DRIVER_VCP; | |
6e6a1c3f | 3129 | |
c8f69686 | 3130 | output[0x01] = type2bit(eeprom->channel_b_type, TYPE_2232H); |
56ac0383 TJ |
3131 | if ( eeprom->channel_b_driver == DRIVER_VCP) |
3132 | output[0x01] |= DRIVER_VCP; | |
3133 | else | |
3134 | output[0x01] &= ~DRIVER_VCP; | |
3135 | if (eeprom->suspend_dbus7 == SUSPEND_DBUS7_BIT) | |
3136 | output[0x01] |= SUSPEND_DBUS7_BIT; | |
3137 | else | |
3138 | output[0x01] &= ~SUSPEND_DBUS7_BIT; | |
3139 | ||
afb90824 | 3140 | if (eeprom->suspend_pull_downs) |
56ac0383 TJ |
3141 | output[0x0A] |= 0x4; |
3142 | else | |
3143 | output[0x0A] &= ~0x4; | |
3144 | ||
3145 | if (eeprom->group0_drive > DRIVE_16MA) | |
3146 | output[0x0c] |= DRIVE_16MA; | |
3147 | else | |
3148 | output[0x0c] |= eeprom->group0_drive; | |
3149 | if (eeprom->group0_schmitt == IS_SCHMITT) | |
3150 | output[0x0c] |= IS_SCHMITT; | |
3151 | if (eeprom->group0_slew == SLOW_SLEW) | |
3152 | output[0x0c] |= SLOW_SLEW; | |
3153 | ||
3154 | if (eeprom->group1_drive > DRIVE_16MA) | |
3155 | output[0x0c] |= DRIVE_16MA<<4; | |
3156 | else | |
3157 | output[0x0c] |= eeprom->group1_drive<<4; | |
3158 | if (eeprom->group1_schmitt == IS_SCHMITT) | |
3159 | output[0x0c] |= IS_SCHMITT<<4; | |
3160 | if (eeprom->group1_slew == SLOW_SLEW) | |
3161 | output[0x0c] |= SLOW_SLEW<<4; | |
3162 | ||
3163 | if (eeprom->group2_drive > DRIVE_16MA) | |
3164 | output[0x0d] |= DRIVE_16MA; | |
3165 | else | |
3166 | output[0x0d] |= eeprom->group2_drive; | |
3167 | if (eeprom->group2_schmitt == IS_SCHMITT) | |
3168 | output[0x0d] |= IS_SCHMITT; | |
3169 | if (eeprom->group2_slew == SLOW_SLEW) | |
3170 | output[0x0d] |= SLOW_SLEW; | |
3171 | ||
3172 | if (eeprom->group3_drive > DRIVE_16MA) | |
3173 | output[0x0d] |= DRIVE_16MA<<4; | |
3174 | else | |
3175 | output[0x0d] |= eeprom->group3_drive<<4; | |
3176 | if (eeprom->group3_schmitt == IS_SCHMITT) | |
3177 | output[0x0d] |= IS_SCHMITT<<4; | |
3178 | if (eeprom->group3_slew == SLOW_SLEW) | |
3179 | output[0x0d] |= SLOW_SLEW<<4; | |
3802140c | 3180 | |
56ac0383 | 3181 | output[0x18] = eeprom->chip; |
3802140c | 3182 | |
56ac0383 TJ |
3183 | break; |
3184 | case TYPE_4232H: | |
be4bae37 AL |
3185 | if (eeprom->channel_a_driver == DRIVER_VCP) |
3186 | output[0x00] |= DRIVER_VCP; | |
3187 | else | |
3188 | output[0x00] &= ~DRIVER_VCP; | |
3189 | if (eeprom->channel_b_driver == DRIVER_VCP) | |
3190 | output[0x01] |= DRIVER_VCP; | |
3191 | else | |
3192 | output[0x01] &= ~DRIVER_VCP; | |
3193 | if (eeprom->channel_c_driver == DRIVER_VCP) | |
3194 | output[0x00] |= (DRIVER_VCP << 4); | |
3195 | else | |
3196 | output[0x00] &= ~(DRIVER_VCP << 4); | |
3197 | if (eeprom->channel_d_driver == DRIVER_VCP) | |
3198 | output[0x01] |= (DRIVER_VCP << 4); | |
3199 | else | |
3200 | output[0x01] &= ~(DRIVER_VCP << 4); | |
3201 | ||
afb90824 | 3202 | if (eeprom->suspend_pull_downs) |
be4bae37 AL |
3203 | output[0x0a] |= 0x4; |
3204 | else | |
3205 | output[0x0a] &= ~0x4; | |
3206 | ||
3207 | if (eeprom->channel_a_rs485enable) | |
3208 | output[0x0b] |= CHANNEL_IS_RS485 << 0; | |
3209 | else | |
3210 | output[0x0b] &= ~(CHANNEL_IS_RS485 << 0); | |
3211 | if (eeprom->channel_b_rs485enable) | |
3212 | output[0x0b] |= CHANNEL_IS_RS485 << 1; | |
3213 | else | |
3214 | output[0x0b] &= ~(CHANNEL_IS_RS485 << 1); | |
3215 | if (eeprom->channel_c_rs485enable) | |
3216 | output[0x0b] |= CHANNEL_IS_RS485 << 2; | |
3217 | else | |
3218 | output[0x0b] &= ~(CHANNEL_IS_RS485 << 2); | |
3219 | if (eeprom->channel_d_rs485enable) | |
3220 | output[0x0b] |= CHANNEL_IS_RS485 << 3; | |
3221 | else | |
3222 | output[0x0b] &= ~(CHANNEL_IS_RS485 << 3); | |
3223 | ||
3224 | if (eeprom->group0_drive > DRIVE_16MA) | |
3225 | output[0x0c] |= DRIVE_16MA; | |
3226 | else | |
3227 | output[0x0c] |= eeprom->group0_drive; | |
3228 | if (eeprom->group0_schmitt == IS_SCHMITT) | |
3229 | output[0x0c] |= IS_SCHMITT; | |
3230 | if (eeprom->group0_slew == SLOW_SLEW) | |
3231 | output[0x0c] |= SLOW_SLEW; | |
3232 | ||
3233 | if (eeprom->group1_drive > DRIVE_16MA) | |
3234 | output[0x0c] |= DRIVE_16MA<<4; | |
3235 | else | |
3236 | output[0x0c] |= eeprom->group1_drive<<4; | |
3237 | if (eeprom->group1_schmitt == IS_SCHMITT) | |
3238 | output[0x0c] |= IS_SCHMITT<<4; | |
3239 | if (eeprom->group1_slew == SLOW_SLEW) | |
3240 | output[0x0c] |= SLOW_SLEW<<4; | |
3241 | ||
3242 | if (eeprom->group2_drive > DRIVE_16MA) | |
3243 | output[0x0d] |= DRIVE_16MA; | |
3244 | else | |
3245 | output[0x0d] |= eeprom->group2_drive; | |
3246 | if (eeprom->group2_schmitt == IS_SCHMITT) | |
3247 | output[0x0d] |= IS_SCHMITT; | |
3248 | if (eeprom->group2_slew == SLOW_SLEW) | |
3249 | output[0x0d] |= SLOW_SLEW; | |
3250 | ||
3251 | if (eeprom->group3_drive > DRIVE_16MA) | |
3252 | output[0x0d] |= DRIVE_16MA<<4; | |
3253 | else | |
3254 | output[0x0d] |= eeprom->group3_drive<<4; | |
3255 | if (eeprom->group3_schmitt == IS_SCHMITT) | |
3256 | output[0x0d] |= IS_SCHMITT<<4; | |
3257 | if (eeprom->group3_slew == SLOW_SLEW) | |
3258 | output[0x0d] |= SLOW_SLEW<<4; | |
3259 | ||
c7e4c09e | 3260 | output[0x18] = eeprom->chip; |
be4bae37 | 3261 | |
c7e4c09e UB |
3262 | break; |
3263 | case TYPE_232H: | |
c8f69686 | 3264 | output[0x00] = type2bit(eeprom->channel_a_type, TYPE_232H); |
ac4a82a5 UB |
3265 | if ( eeprom->channel_a_driver == DRIVER_VCP) |
3266 | output[0x00] |= DRIVER_VCPH; | |
3267 | else | |
3268 | output[0x00] &= ~DRIVER_VCPH; | |
837a71d6 UB |
3269 | if (eeprom->powersave) |
3270 | output[0x01] |= POWER_SAVE_DISABLE_H; | |
3271 | else | |
3272 | output[0x01] &= ~POWER_SAVE_DISABLE_H; | |
a7e05353 DM |
3273 | |
3274 | if (eeprom->suspend_pull_downs) | |
3275 | output[0x0a] |= 0x4; | |
3276 | else | |
3277 | output[0x0a] &= ~0x4; | |
3278 | ||
18199b76 UB |
3279 | if (eeprom->clock_polarity) |
3280 | output[0x01] |= FT1284_CLK_IDLE_STATE; | |
3281 | else | |
3282 | output[0x01] &= ~FT1284_CLK_IDLE_STATE; | |
3283 | if (eeprom->data_order) | |
3284 | output[0x01] |= FT1284_DATA_LSB; | |
3285 | else | |
3286 | output[0x01] &= ~FT1284_DATA_LSB; | |
3287 | if (eeprom->flow_control) | |
3288 | output[0x01] |= FT1284_FLOW_CONTROL; | |
3289 | else | |
3290 | output[0x01] &= ~FT1284_FLOW_CONTROL; | |
91d7a201 UB |
3291 | if (eeprom->group0_drive > DRIVE_16MA) |
3292 | output[0x0c] |= DRIVE_16MA; | |
3293 | else | |
3294 | output[0x0c] |= eeprom->group0_drive; | |
3295 | if (eeprom->group0_schmitt == IS_SCHMITT) | |
3296 | output[0x0c] |= IS_SCHMITT; | |
3297 | if (eeprom->group0_slew == SLOW_SLEW) | |
3298 | output[0x0c] |= SLOW_SLEW; | |
3299 | ||
3300 | if (eeprom->group1_drive > DRIVE_16MA) | |
3301 | output[0x0d] |= DRIVE_16MA; | |
3302 | else | |
3303 | output[0x0d] |= eeprom->group1_drive; | |
3304 | if (eeprom->group1_schmitt == IS_SCHMITT) | |
3305 | output[0x0d] |= IS_SCHMITT; | |
3306 | if (eeprom->group1_slew == SLOW_SLEW) | |
3307 | output[0x0d] |= SLOW_SLEW; | |
3308 | ||
263d3ba0 UB |
3309 | set_ft232h_cbus(eeprom, output); |
3310 | ||
c7e4c09e UB |
3311 | output[0x1e] = eeprom->chip; |
3312 | fprintf(stderr,"FIXME: Build FT232H specific EEPROM settings\n"); | |
3313 | break; | |
2f80efc2 NP |
3314 | case TYPE_230X: |
3315 | output[0x00] = 0x80; /* Actually, leave the default value */ | |
e659737a UB |
3316 | /*FIXME: Make DBUS & CBUS Control configurable*/ |
3317 | output[0x0c] = 0; /* DBUS drive 4mA, CBUS drive 4 mA like factory default */ | |
74387f27 TJ |
3318 | for (j = 0; j <= 6; j++) |
3319 | { | |
2f80efc2 NP |
3320 | output[0x1a + j] = eeprom->cbus_function[j]; |
3321 | } | |
347d87e5 | 3322 | output[0x0b] = eeprom->invert; |
2f80efc2 | 3323 | break; |
3802140c UB |
3324 | } |
3325 | ||
6e962b9a SET |
3326 | /* First address without use */ |
3327 | free_start = 0; | |
3328 | switch (ftdi->type) | |
3329 | { | |
3330 | case TYPE_230X: | |
3331 | free_start += 2; | |
3332 | case TYPE_232H: | |
3333 | free_start += 6; | |
3334 | case TYPE_2232H: | |
3335 | case TYPE_4232H: | |
3336 | free_start += 2; | |
3337 | case TYPE_R: | |
3338 | free_start += 2; | |
3339 | case TYPE_2232C: | |
3340 | free_start++; | |
3341 | case TYPE_AM: | |
3342 | case TYPE_BM: | |
3343 | free_start += 0x14; | |
3344 | } | |
3345 | ||
3346 | /* Arbitrary user data */ | |
3347 | if (eeprom->user_data && eeprom->user_data_size >= 0) | |
3348 | { | |
3349 | if (eeprom->user_data_addr < free_start) | |
3350 | fprintf(stderr,"Warning, user data starts inside the generated data!\n"); | |
3351 | if (eeprom->user_data_addr + eeprom->user_data_size >= free_end) | |
3352 | fprintf(stderr,"Warning, user data overlaps the strings area!\n"); | |
3353 | if (eeprom->user_data_addr + eeprom->user_data_size > eeprom->size) | |
3354 | ftdi_error_return(-1,"eeprom size exceeded"); | |
3355 | memcpy(output + eeprom->user_data_addr, eeprom->user_data, eeprom->user_data_size); | |
3356 | } | |
3357 | ||
cbf65673 | 3358 | // calculate checksum |
b8aa7b35 | 3359 | checksum = 0xAAAA; |
d9f0cce7 | 3360 | |
22d12cda TJ |
3361 | for (i = 0; i < eeprom->size/2-1; i++) |
3362 | { | |
74387f27 TJ |
3363 | if ((ftdi->type == TYPE_230X) && (i == 0x12)) |
3364 | { | |
2f80efc2 NP |
3365 | /* FT230X has a user section in the MTP which is not part of the checksum */ |
3366 | i = 0x40; | |
3367 | } | |
519bbce1 UB |
3368 | if ((ftdi->type == TYPE_230X) && (i >= 0x40) && (i < 0x50)) { |
3369 | uint16_t data; | |
3370 | if (ftdi_read_eeprom_location(ftdi, i, &data)) { | |
3371 | fprintf(stderr, "Reading Factory Configuration Data failed\n"); | |
3372 | i = 0x50; | |
3373 | } | |
3374 | value = data; | |
3375 | } | |
3376 | else { | |
3377 | value = output[i*2]; | |
3378 | value += output[(i*2)+1] << 8; | |
3379 | } | |
d9f0cce7 TJ |
3380 | checksum = value^checksum; |
3381 | checksum = (checksum << 1) | (checksum >> 15); | |
b8aa7b35 TJ |
3382 | } |
3383 | ||
c201f80f TJ |
3384 | output[eeprom->size-2] = checksum; |
3385 | output[eeprom->size-1] = checksum >> 8; | |
b8aa7b35 | 3386 | |
68e78641 | 3387 | eeprom->initialized_for_connected_device = 1; |
516ebfb1 | 3388 | return user_area_size; |
b8aa7b35 | 3389 | } |
74387f27 | 3390 | /* Decode the encoded EEPROM field for the FTDI Mode into a value for the abstracted |
c8f69686 UB |
3391 | * EEPROM structure |
3392 | * | |
3393 | * FTD2XX doesn't allow to set multiple bits in the interface mode bitfield, and so do we | |
3394 | */ | |
3395 | static unsigned char bit2type(unsigned char bits) | |
0fc2170c UB |
3396 | { |
3397 | switch (bits) | |
3398 | { | |
74387f27 TJ |
3399 | case 0: return CHANNEL_IS_UART; |
3400 | case 1: return CHANNEL_IS_FIFO; | |
3401 | case 2: return CHANNEL_IS_OPTO; | |
3402 | case 4: return CHANNEL_IS_CPU; | |
3403 | case 8: return CHANNEL_IS_FT1284; | |
3404 | default: | |
3405 | fprintf(stderr," Unexpected value %d for Hardware Interface type\n", | |
3406 | bits); | |
0fc2170c UB |
3407 | } |
3408 | return 0; | |
3409 | } | |
1ad9e4cc TJ |
3410 | /* Decode 230X / 232R type chips invert bits |
3411 | * Prints directly to stdout. | |
3412 | */ | |
3413 | static void print_inverted_bits(int invert) | |
3414 | { | |
c45d2630 | 3415 | const char *r_bits[] = {"TXD","RXD","RTS","CTS","DTR","DSR","DCD","RI"}; |
1ad9e4cc TJ |
3416 | int i; |
3417 | ||
3418 | fprintf(stdout,"Inverted bits:"); | |
3419 | for (i=0; i<8; i++) | |
3420 | if ((invert & (1<<i)) == (1<<i)) | |
3421 | fprintf(stdout," %s",r_bits[i]); | |
3422 | ||
3423 | fprintf(stdout,"\n"); | |
3424 | } | |
4af1d1bb MK |
3425 | /** |
3426 | Decode binary EEPROM image into an ftdi_eeprom structure. | |
3427 | ||
e659737a UB |
3428 | For FT-X devices use AN_201 FT-X MTP memory Configuration to decode. |
3429 | ||
a35aa9bd UB |
3430 | \param ftdi pointer to ftdi_context |
3431 | \param verbose Decode EEPROM on stdout | |
56ac0383 | 3432 | |
4af1d1bb MK |
3433 | \retval 0: all fine |
3434 | \retval -1: something went wrong | |
3435 | ||
3436 | FIXME: How to pass size? How to handle size field in ftdi_eeprom? | |
3437 | FIXME: Strings are malloc'ed here and should be freed somewhere | |
3438 | */ | |
a35aa9bd | 3439 | int ftdi_eeprom_decode(struct ftdi_context *ftdi, int verbose) |
b56d5a64 | 3440 | { |
3fca5ea9 | 3441 | int i, j; |
b56d5a64 MK |
3442 | unsigned short checksum, eeprom_checksum, value; |
3443 | unsigned char manufacturer_size = 0, product_size = 0, serial_size = 0; | |
f2cd9fd5 | 3444 | int eeprom_size; |
c0a96aed | 3445 | struct ftdi_eeprom *eeprom; |
3bc0387e | 3446 | unsigned char *buf = NULL; |
22a1b5c1 | 3447 | |
c0a96aed | 3448 | if (ftdi == NULL) |
cc9c9d58 | 3449 | ftdi_error_return(-1,"No context"); |
c0a96aed | 3450 | if (ftdi->eeprom == NULL) |
6cd4f922 | 3451 | ftdi_error_return(-1,"No eeprom structure"); |
56ac0383 | 3452 | |
c0a96aed | 3453 | eeprom = ftdi->eeprom; |
a35aa9bd | 3454 | eeprom_size = eeprom->size; |
3bc0387e | 3455 | buf = ftdi->eeprom->buf; |
b56d5a64 | 3456 | |
b56d5a64 MK |
3457 | // Addr 02: Vendor ID |
3458 | eeprom->vendor_id = buf[0x02] + (buf[0x03] << 8); | |
3459 | ||
3460 | // Addr 04: Product ID | |
3461 | eeprom->product_id = buf[0x04] + (buf[0x05] << 8); | |
22d12cda | 3462 | |
68e78641 JS |
3463 | // Addr 06: Device release number |
3464 | eeprom->release_number = buf[0x06] + (buf[0x07]<<8); | |
b56d5a64 MK |
3465 | |
3466 | // Addr 08: Config descriptor | |
3467 | // Bit 7: always 1 | |
3468 | // Bit 6: 1 if this device is self powered, 0 if bus powered | |
3469 | // Bit 5: 1 if this device uses remote wakeup | |
f6ef2983 | 3470 | eeprom->self_powered = buf[0x08] & 0x40; |
814710ba | 3471 | eeprom->remote_wakeup = buf[0x08] & 0x20; |
b56d5a64 MK |
3472 | |
3473 | // Addr 09: Max power consumption: max power = value * 2 mA | |
a7c32c59 | 3474 | eeprom->max_power = MAX_POWER_MILLIAMP_PER_UNIT * buf[0x09]; |
b56d5a64 MK |
3475 | |
3476 | // Addr 0A: Chip configuration | |
3477 | // Bit 7: 0 - reserved | |
3478 | // Bit 6: 0 - reserved | |
3479 | // Bit 5: 0 - reserved | |
caec1294 | 3480 | // Bit 4: 1 - Change USB version on BM and 2232C |
b56d5a64 MK |
3481 | // Bit 3: 1 - Use the serial number string |
3482 | // Bit 2: 1 - Enable suspend pull downs for lower power | |
3483 | // Bit 1: 1 - Out EndPoint is Isochronous | |
3484 | // Bit 0: 1 - In EndPoint is Isochronous | |
3485 | // | |
8d3fe5c9 UB |
3486 | eeprom->in_is_isochronous = buf[0x0A]&0x01; |
3487 | eeprom->out_is_isochronous = buf[0x0A]&0x02; | |
3488 | eeprom->suspend_pull_downs = buf[0x0A]&0x04; | |
3986243d TS |
3489 | eeprom->use_serial = !!(buf[0x0A] & USE_SERIAL_NUM); |
3490 | eeprom->use_usb_version = !!(buf[0x0A] & USE_USB_VERSION_BIT); | |
b56d5a64 | 3491 | |
b1859923 | 3492 | // Addr 0C: USB version low byte when 0x0A |
56ac0383 | 3493 | // Addr 0D: USB version high byte when 0x0A |
b1859923 | 3494 | eeprom->usb_version = buf[0x0C] + (buf[0x0D] << 8); |
b56d5a64 MK |
3495 | |
3496 | // Addr 0E: Offset of the manufacturer string + 0x80, calculated later | |
3497 | // Addr 0F: Length of manufacturer string | |
3498 | manufacturer_size = buf[0x0F]/2; | |
56ac0383 | 3499 | if (eeprom->manufacturer) |
74e8e79d | 3500 | free(eeprom->manufacturer); |
56ac0383 | 3501 | if (manufacturer_size > 0) |
acc1fa05 | 3502 | { |
c45d2630 | 3503 | eeprom->manufacturer = (char *)malloc(manufacturer_size); |
acc1fa05 UB |
3504 | if (eeprom->manufacturer) |
3505 | { | |
3506 | // Decode manufacturer | |
84ec032f | 3507 | i = buf[0x0E] & (eeprom_size -1); // offset |
74387f27 | 3508 | for (j=0; j<manufacturer_size-1; j++) |
acc1fa05 UB |
3509 | { |
3510 | eeprom->manufacturer[j] = buf[2*j+i+2]; | |
3511 | } | |
3512 | eeprom->manufacturer[j] = '\0'; | |
3513 | } | |
3514 | } | |
b56d5a64 MK |
3515 | else eeprom->manufacturer = NULL; |
3516 | ||
3517 | // Addr 10: Offset of the product string + 0x80, calculated later | |
3518 | // Addr 11: Length of product string | |
56ac0383 | 3519 | if (eeprom->product) |
74e8e79d | 3520 | free(eeprom->product); |
b56d5a64 | 3521 | product_size = buf[0x11]/2; |
acc1fa05 UB |
3522 | if (product_size > 0) |
3523 | { | |
c45d2630 | 3524 | eeprom->product = (char *)malloc(product_size); |
56ac0383 | 3525 | if (eeprom->product) |
acc1fa05 UB |
3526 | { |
3527 | // Decode product name | |
84ec032f | 3528 | i = buf[0x10] & (eeprom_size -1); // offset |
74387f27 | 3529 | for (j=0; j<product_size-1; j++) |
acc1fa05 UB |
3530 | { |
3531 | eeprom->product[j] = buf[2*j+i+2]; | |
3532 | } | |
3533 | eeprom->product[j] = '\0'; | |
3534 | } | |
3535 | } | |
b56d5a64 MK |
3536 | else eeprom->product = NULL; |
3537 | ||
3538 | // Addr 12: Offset of the serial string + 0x80, calculated later | |
3539 | // Addr 13: Length of serial string | |
56ac0383 | 3540 | if (eeprom->serial) |
74e8e79d | 3541 | free(eeprom->serial); |
b56d5a64 | 3542 | serial_size = buf[0x13]/2; |
acc1fa05 UB |
3543 | if (serial_size > 0) |
3544 | { | |
c45d2630 | 3545 | eeprom->serial = (char *)malloc(serial_size); |
56ac0383 | 3546 | if (eeprom->serial) |
acc1fa05 UB |
3547 | { |
3548 | // Decode serial | |
84ec032f | 3549 | i = buf[0x12] & (eeprom_size -1); // offset |
74387f27 | 3550 | for (j=0; j<serial_size-1; j++) |
acc1fa05 UB |
3551 | { |
3552 | eeprom->serial[j] = buf[2*j+i+2]; | |
3553 | } | |
3554 | eeprom->serial[j] = '\0'; | |
3555 | } | |
3556 | } | |
b56d5a64 MK |
3557 | else eeprom->serial = NULL; |
3558 | ||
b56d5a64 MK |
3559 | // verify checksum |
3560 | checksum = 0xAAAA; | |
3561 | ||
22d12cda TJ |
3562 | for (i = 0; i < eeprom_size/2-1; i++) |
3563 | { | |
74387f27 TJ |
3564 | if ((ftdi->type == TYPE_230X) && (i == 0x12)) |
3565 | { | |
2f80efc2 NP |
3566 | /* FT230X has a user section in the MTP which is not part of the checksum */ |
3567 | i = 0x40; | |
3568 | } | |
b56d5a64 MK |
3569 | value = buf[i*2]; |
3570 | value += buf[(i*2)+1] << 8; | |
3571 | ||
3572 | checksum = value^checksum; | |
3573 | checksum = (checksum << 1) | (checksum >> 15); | |
3574 | } | |
3575 | ||
3576 | eeprom_checksum = buf[eeprom_size-2] + (buf[eeprom_size-1] << 8); | |
3577 | ||
22d12cda TJ |
3578 | if (eeprom_checksum != checksum) |
3579 | { | |
3580 | fprintf(stderr, "Checksum Error: %04x %04x\n", checksum, eeprom_checksum); | |
cc9c9d58 | 3581 | ftdi_error_return(-1,"EEPROM checksum error"); |
4af1d1bb MK |
3582 | } |
3583 | ||
eb498cff | 3584 | eeprom->channel_a_type = 0; |
aa099f46 | 3585 | if ((ftdi->type == TYPE_AM) || (ftdi->type == TYPE_BM)) |
f6ef2983 | 3586 | { |
6cd4f922 | 3587 | eeprom->chip = -1; |
f6ef2983 | 3588 | } |
56ac0383 | 3589 | else if (ftdi->type == TYPE_2232C) |
f6ef2983 | 3590 | { |
0fc2170c | 3591 | eeprom->channel_a_type = bit2type(buf[0x00] & 0x7); |
2cde7c52 UB |
3592 | eeprom->channel_a_driver = buf[0x00] & DRIVER_VCP; |
3593 | eeprom->high_current_a = buf[0x00] & HIGH_CURRENT_DRIVE; | |
3594 | eeprom->channel_b_type = buf[0x01] & 0x7; | |
3595 | eeprom->channel_b_driver = buf[0x01] & DRIVER_VCP; | |
3596 | eeprom->high_current_b = buf[0x01] & HIGH_CURRENT_DRIVE; | |
6cd4f922 | 3597 | eeprom->chip = buf[0x14]; |
065edc58 | 3598 | } |
56ac0383 | 3599 | else if (ftdi->type == TYPE_R) |
564b2716 | 3600 | { |
2cde7c52 | 3601 | /* TYPE_R flags D2XX, not VCP as all others*/ |
be4bae37 | 3602 | eeprom->channel_a_driver = ~buf[0x00] & DRIVER_VCP; |
2cde7c52 | 3603 | eeprom->high_current = buf[0x00] & HIGH_CURRENT_DRIVE_R; |
08518f8e | 3604 | eeprom->external_oscillator = buf[0x00] & 0x02; |
56ac0383 TJ |
3605 | if ( (buf[0x01]&0x40) != 0x40) |
3606 | fprintf(stderr, | |
3607 | "TYPE_R EEPROM byte[0x01] Bit 6 unexpected Endpoint size." | |
3608 | " If this happened with the\n" | |
3609 | " EEPROM programmed by FTDI tools, please report " | |
3610 | "to libftdi@developer.intra2net.com\n"); | |
2cde7c52 | 3611 | |
6cd4f922 | 3612 | eeprom->chip = buf[0x16]; |
cecb9cb2 UB |
3613 | // Addr 0B: Invert data lines |
3614 | // Works only on FT232R, not FT245R, but no way to distinguish | |
07851949 UB |
3615 | eeprom->invert = buf[0x0B]; |
3616 | // Addr 14: CBUS function: CBUS0, CBUS1 | |
3617 | // Addr 15: CBUS function: CBUS2, CBUS3 | |
3618 | // Addr 16: CBUS function: CBUS5 | |
3619 | eeprom->cbus_function[0] = buf[0x14] & 0x0f; | |
3620 | eeprom->cbus_function[1] = (buf[0x14] >> 4) & 0x0f; | |
3621 | eeprom->cbus_function[2] = buf[0x15] & 0x0f; | |
3622 | eeprom->cbus_function[3] = (buf[0x15] >> 4) & 0x0f; | |
3623 | eeprom->cbus_function[4] = buf[0x16] & 0x0f; | |
564b2716 | 3624 | } |
be4bae37 | 3625 | else if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H)) |
db099ec5 | 3626 | { |
2cde7c52 | 3627 | eeprom->channel_a_driver = buf[0x00] & DRIVER_VCP; |
2cde7c52 UB |
3628 | eeprom->channel_b_driver = buf[0x01] & DRIVER_VCP; |
3629 | ||
56ac0383 | 3630 | if (ftdi->type == TYPE_2232H) |
be4bae37 AL |
3631 | { |
3632 | eeprom->channel_a_type = bit2type(buf[0x00] & 0x7); | |
3633 | eeprom->channel_b_type = bit2type(buf[0x01] & 0x7); | |
ec0dcd3f | 3634 | eeprom->suspend_dbus7 = buf[0x01] & SUSPEND_DBUS7_BIT; |
be4bae37 AL |
3635 | } |
3636 | else | |
3637 | { | |
3638 | eeprom->channel_c_driver = (buf[0x00] >> 4) & DRIVER_VCP; | |
3639 | eeprom->channel_d_driver = (buf[0x01] >> 4) & DRIVER_VCP; | |
3640 | eeprom->channel_a_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 0); | |
3641 | eeprom->channel_b_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 1); | |
3642 | eeprom->channel_c_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 2); | |
3643 | eeprom->channel_d_rs485enable = buf[0x0b] & (CHANNEL_IS_RS485 << 3); | |
3644 | } | |
2cde7c52 | 3645 | |
6cd4f922 | 3646 | eeprom->chip = buf[0x18]; |
db099ec5 UB |
3647 | eeprom->group0_drive = buf[0x0c] & DRIVE_16MA; |
3648 | eeprom->group0_schmitt = buf[0x0c] & IS_SCHMITT; | |
3649 | eeprom->group0_slew = buf[0x0c] & SLOW_SLEW; | |
3650 | eeprom->group1_drive = (buf[0x0c] >> 4) & 0x3; | |
3651 | eeprom->group1_schmitt = (buf[0x0c] >> 4) & IS_SCHMITT; | |
3652 | eeprom->group1_slew = (buf[0x0c] >> 4) & SLOW_SLEW; | |
3653 | eeprom->group2_drive = buf[0x0d] & DRIVE_16MA; | |
3654 | eeprom->group2_schmitt = buf[0x0d] & IS_SCHMITT; | |
3655 | eeprom->group2_slew = buf[0x0d] & SLOW_SLEW; | |
3656 | eeprom->group3_drive = (buf[0x0d] >> 4) & DRIVE_16MA; | |
3657 | eeprom->group3_schmitt = (buf[0x0d] >> 4) & IS_SCHMITT; | |
3658 | eeprom->group3_slew = (buf[0x0d] >> 4) & SLOW_SLEW; | |
947d9552 | 3659 | } |
c7e4c09e UB |
3660 | else if (ftdi->type == TYPE_232H) |
3661 | { | |
ac4a82a5 UB |
3662 | eeprom->channel_a_type = buf[0x00] & 0xf; |
3663 | eeprom->channel_a_driver = (buf[0x00] & DRIVER_VCPH)?DRIVER_VCP:0; | |
18199b76 UB |
3664 | eeprom->clock_polarity = buf[0x01] & FT1284_CLK_IDLE_STATE; |
3665 | eeprom->data_order = buf[0x01] & FT1284_DATA_LSB; | |
3666 | eeprom->flow_control = buf[0x01] & FT1284_FLOW_CONTROL; | |
837a71d6 | 3667 | eeprom->powersave = buf[0x01] & POWER_SAVE_DISABLE_H; |
91d7a201 UB |
3668 | eeprom->group0_drive = buf[0x0c] & DRIVE_16MA; |
3669 | eeprom->group0_schmitt = buf[0x0c] & IS_SCHMITT; | |
3670 | eeprom->group0_slew = buf[0x0c] & SLOW_SLEW; | |
3671 | eeprom->group1_drive = buf[0x0d] & DRIVE_16MA; | |
3672 | eeprom->group1_schmitt = buf[0x0d] & IS_SCHMITT; | |
3673 | eeprom->group1_slew = buf[0x0d] & SLOW_SLEW; | |
3674 | ||
263d3ba0 UB |
3675 | for(i=0; i<5; i++) |
3676 | { | |
3677 | eeprom->cbus_function[2*i ] = buf[0x18+i] & 0x0f; | |
3678 | eeprom->cbus_function[2*i+1] = (buf[0x18+i] >> 4) & 0x0f; | |
3679 | } | |
c7e4c09e UB |
3680 | eeprom->chip = buf[0x1e]; |
3681 | /*FIXME: Decipher more values*/ | |
3682 | } | |
2f80efc2 NP |
3683 | else if (ftdi->type == TYPE_230X) |
3684 | { | |
74387f27 TJ |
3685 | for(i=0; i<4; i++) |
3686 | { | |
2f80efc2 NP |
3687 | eeprom->cbus_function[i] = buf[0x1a + i] & 0xFF; |
3688 | } | |
3689 | eeprom->group0_drive = buf[0x0c] & 0x03; | |
3690 | eeprom->group0_schmitt = buf[0x0c] & IS_SCHMITT; | |
3691 | eeprom->group0_slew = buf[0x0c] & SLOW_SLEW; | |
3692 | eeprom->group1_drive = (buf[0x0c] >> 4) & 0x03; | |
3693 | eeprom->group1_schmitt = (buf[0x0c] >> 4) & IS_SCHMITT; | |
3694 | eeprom->group1_slew = (buf[0x0c] >> 4) & SLOW_SLEW; | |
34b79ac7 | 3695 | |
347d87e5 | 3696 | eeprom->invert = buf[0xb]; |
2f80efc2 | 3697 | } |
56ac0383 TJ |
3698 | |
3699 | if (verbose) | |
f6ef2983 | 3700 | { |
c45d2630 | 3701 | const char *channel_mode[] = {"UART", "FIFO", "CPU", "OPTO", "FT1284"}; |
f6ef2983 UB |
3702 | fprintf(stdout, "VID: 0x%04x\n",eeprom->vendor_id); |
3703 | fprintf(stdout, "PID: 0x%04x\n",eeprom->product_id); | |
68e78641 | 3704 | fprintf(stdout, "Release: 0x%04x\n",eeprom->release_number); |
f6ef2983 | 3705 | |
56ac0383 | 3706 | if (eeprom->self_powered) |
f6ef2983 UB |
3707 | fprintf(stdout, "Self-Powered%s", (eeprom->remote_wakeup)?", USB Remote Wake Up\n":"\n"); |
3708 | else | |
a7c32c59 | 3709 | fprintf(stdout, "Bus Powered: %3d mA%s", eeprom->max_power, |
f6ef2983 | 3710 | (eeprom->remote_wakeup)?" USB Remote Wake Up\n":"\n"); |
56ac0383 | 3711 | if (eeprom->manufacturer) |
f6ef2983 | 3712 | fprintf(stdout, "Manufacturer: %s\n",eeprom->manufacturer); |
56ac0383 | 3713 | if (eeprom->product) |
f6ef2983 | 3714 | fprintf(stdout, "Product: %s\n",eeprom->product); |
56ac0383 | 3715 | if (eeprom->serial) |
f6ef2983 | 3716 | fprintf(stdout, "Serial: %s\n",eeprom->serial); |
e107f509 | 3717 | fprintf(stdout, "Checksum : %04x\n", checksum); |
08518f8e | 3718 | if (ftdi->type == TYPE_R) { |
6cd4f922 | 3719 | fprintf(stdout, "Internal EEPROM\n"); |
08518f8e RA |
3720 | fprintf(stdout,"Oscillator: %s\n", eeprom->external_oscillator?"External":"Internal"); |
3721 | } | |
6cd4f922 UB |
3722 | else if (eeprom->chip >= 0x46) |
3723 | fprintf(stdout, "Attached EEPROM: 93x%02x\n", eeprom->chip); | |
56ac0383 TJ |
3724 | if (eeprom->suspend_dbus7) |
3725 | fprintf(stdout, "Suspend on DBUS7\n"); | |
3726 | if (eeprom->suspend_pull_downs) | |
fb9bfdd1 | 3727 | fprintf(stdout, "Pull IO pins low during suspend\n"); |
837a71d6 UB |
3728 | if(eeprom->powersave) |
3729 | { | |
3730 | if(ftdi->type >= TYPE_232H) | |
3731 | fprintf(stdout,"Enter low power state on ACBUS7\n"); | |
74387f27 | 3732 | } |
56ac0383 | 3733 | if (eeprom->remote_wakeup) |
fb9bfdd1 | 3734 | fprintf(stdout, "Enable Remote Wake Up\n"); |
802a949e | 3735 | fprintf(stdout, "PNP: %d\n",(eeprom->is_not_pnp)?0:1); |
db099ec5 | 3736 | if (ftdi->type >= TYPE_2232C) |
56ac0383 | 3737 | fprintf(stdout,"Channel A has Mode %s%s%s\n", |
e107f509 | 3738 | channel_mode[eeprom->channel_a_type], |
2cde7c52 UB |
3739 | (eeprom->channel_a_driver)?" VCP":"", |
3740 | (eeprom->high_current_a)?" High Current IO":""); | |
f45f4237 | 3741 | if (ftdi->type == TYPE_232H) |
18199b76 UB |
3742 | { |
3743 | fprintf(stdout,"FT1284 Mode Clock is idle %s, %s first, %sFlow Control\n", | |
3744 | (eeprom->clock_polarity)?"HIGH":"LOW", | |
3745 | (eeprom->data_order)?"LSB":"MSB", | |
3746 | (eeprom->flow_control)?"":"No "); | |
74387f27 | 3747 | } |
f45f4237 | 3748 | if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H)) |
56ac0383 | 3749 | fprintf(stdout,"Channel B has Mode %s%s%s\n", |
e107f509 | 3750 | channel_mode[eeprom->channel_b_type], |
2cde7c52 UB |
3751 | (eeprom->channel_b_driver)?" VCP":"", |
3752 | (eeprom->high_current_b)?" High Current IO":""); | |
caec1294 | 3753 | if (((ftdi->type == TYPE_BM) || (ftdi->type == TYPE_2232C)) && |
3986243d | 3754 | eeprom->use_usb_version) |
caec1294 UB |
3755 | fprintf(stdout,"Use explicit USB Version %04x\n",eeprom->usb_version); |
3756 | ||
56ac0383 | 3757 | if ((ftdi->type == TYPE_2232H) || (ftdi->type == TYPE_4232H)) |
db099ec5 UB |
3758 | { |
3759 | fprintf(stdout,"%s has %d mA drive%s%s\n", | |
3760 | (ftdi->type == TYPE_2232H)?"AL":"A", | |
3761 | (eeprom->group0_drive+1) *4, | |
3762 | (eeprom->group0_schmitt)?" Schmitt Input":"", | |
3763 | (eeprom->group0_slew)?" Slow Slew":""); | |
3764 | fprintf(stdout,"%s has %d mA drive%s%s\n", | |
3765 | (ftdi->type == TYPE_2232H)?"AH":"B", | |
3766 | (eeprom->group1_drive+1) *4, | |
3767 | (eeprom->group1_schmitt)?" Schmitt Input":"", | |
3768 | (eeprom->group1_slew)?" Slow Slew":""); | |
3769 | fprintf(stdout,"%s has %d mA drive%s%s\n", | |
3770 | (ftdi->type == TYPE_2232H)?"BL":"C", | |
3771 | (eeprom->group2_drive+1) *4, | |
3772 | (eeprom->group2_schmitt)?" Schmitt Input":"", | |
3773 | (eeprom->group2_slew)?" Slow Slew":""); | |
3774 | fprintf(stdout,"%s has %d mA drive%s%s\n", | |
3775 | (ftdi->type == TYPE_2232H)?"BH":"D", | |
3776 | (eeprom->group3_drive+1) *4, | |
3777 | (eeprom->group3_schmitt)?" Schmitt Input":"", | |
3778 | (eeprom->group3_slew)?" Slow Slew":""); | |
3779 | } | |
91d7a201 UB |
3780 | else if (ftdi->type == TYPE_232H) |
3781 | { | |
c45d2630 | 3782 | const char *cbush_mux[] = {"TRISTATE","TXLED","RXLED", "TXRXLED","PWREN", |
74387f27 TJ |
3783 | "SLEEP","DRIVE_0","DRIVE_1","IOMODE","TXDEN", |
3784 | "CLK30","CLK15","CLK7_5" | |
3785 | }; | |
91d7a201 UB |
3786 | fprintf(stdout,"ACBUS has %d mA drive%s%s\n", |
3787 | (eeprom->group0_drive+1) *4, | |
3788 | (eeprom->group0_schmitt)?" Schmitt Input":"", | |
3789 | (eeprom->group0_slew)?" Slow Slew":""); | |
3790 | fprintf(stdout,"ADBUS has %d mA drive%s%s\n", | |
3791 | (eeprom->group1_drive+1) *4, | |
3792 | (eeprom->group1_schmitt)?" Schmitt Input":"", | |
3793 | (eeprom->group1_slew)?" Slow Slew":""); | |
263d3ba0 UB |
3794 | for (i=0; i<10; i++) |
3795 | { | |
3796 | if (eeprom->cbus_function[i]<= CBUSH_CLK7_5 ) | |
3797 | fprintf(stdout,"C%d Function: %s\n", i, | |
3798 | cbush_mux[eeprom->cbus_function[i]]); | |
3799 | } | |
91d7a201 | 3800 | } |
2f80efc2 NP |
3801 | else if (ftdi->type == TYPE_230X) |
3802 | { | |
c45d2630 | 3803 | const char *cbusx_mux[] = {"TRISTATE","TXLED","RXLED", "TXRXLED","PWREN", |
74387f27 TJ |
3804 | "SLEEP","DRIVE_0","DRIVE_1","IOMODE","TXDEN", |
3805 | "CLK24","CLK12","CLK6","BAT_DETECT","BAT_DETECT#", | |
3806 | "I2C_TXE#", "I2C_RXF#", "VBUS_SENSE", "BB_WR#", | |
3807 | "BBRD#", "TIME_STAMP", "AWAKE#", | |
3808 | }; | |
f45f4237 | 3809 | fprintf(stdout,"DBUS has %d mA drive%s%s\n", |
2f80efc2 NP |
3810 | (eeprom->group0_drive+1) *4, |
3811 | (eeprom->group0_schmitt)?" Schmitt Input":"", | |
3812 | (eeprom->group0_slew)?" Slow Slew":""); | |
3813 | fprintf(stdout,"CBUS has %d mA drive%s%s\n", | |
3814 | (eeprom->group1_drive+1) *4, | |
3815 | (eeprom->group1_schmitt)?" Schmitt Input":"", | |
3816 | (eeprom->group1_slew)?" Slow Slew":""); | |
3817 | for (i=0; i<4; i++) | |
3818 | { | |
add00ad6 RH |
3819 | if (eeprom->cbus_function[i]<= CBUSX_AWAKE) |
3820 | fprintf(stdout,"CBUS%d Function: %s\n", i, cbusx_mux[eeprom->cbus_function[i]]); | |
2f80efc2 | 3821 | } |
1ad9e4cc TJ |
3822 | |
3823 | if (eeprom->invert) | |
3824 | print_inverted_bits(eeprom->invert); | |
2f80efc2 | 3825 | } |
91d7a201 | 3826 | |
a4980043 UB |
3827 | if (ftdi->type == TYPE_R) |
3828 | { | |
c45d2630 | 3829 | const char *cbus_mux[] = {"TXDEN","PWREN","RXLED", "TXLED","TX+RXLED", |
13f00d3c | 3830 | "SLEEP","CLK48","CLK24","CLK12","CLK6", |
56ac0383 TJ |
3831 | "IOMODE","BB_WR","BB_RD" |
3832 | }; | |
c45d2630 | 3833 | const char *cbus_BB[] = {"RXF","TXE","RD", "WR"}; |
56ac0383 TJ |
3834 | |
3835 | if (eeprom->invert) | |
1ad9e4cc | 3836 | print_inverted_bits(eeprom->invert); |
13ea50d2 | 3837 | |
56ac0383 | 3838 | for (i=0; i<5; i++) |
a4980043 | 3839 | { |
add00ad6 | 3840 | if (eeprom->cbus_function[i]<=CBUS_BB_RD) |
a4980043 UB |
3841 | fprintf(stdout,"C%d Function: %s\n", i, |
3842 | cbus_mux[eeprom->cbus_function[i]]); | |
3843 | else | |
17431287 | 3844 | { |
598b2334 UB |
3845 | if (i < 4) |
3846 | /* Running MPROG show that C0..3 have fixed function Synchronous | |
3847 | Bit Bang mode */ | |
3848 | fprintf(stdout,"C%d BB Function: %s\n", i, | |
3849 | cbus_BB[i]); | |
3850 | else | |
3851 | fprintf(stdout, "Unknown CBUS mode. Might be special mode?\n"); | |
17431287 | 3852 | } |
a4980043 UB |
3853 | } |
3854 | } | |
f6ef2983 | 3855 | } |
4af1d1bb | 3856 | return 0; |
b56d5a64 MK |
3857 | } |
3858 | ||
1941414d | 3859 | /** |
44ef02bd UB |
3860 | Get a value from the decoded EEPROM structure |
3861 | ||
735e81ea TJ |
3862 | \param ftdi pointer to ftdi_context |
3863 | \param value_name Enum of the value to query | |
3864 | \param value Pointer to store read value | |
44ef02bd | 3865 | |
735e81ea TJ |
3866 | \retval 0: all fine |
3867 | \retval -1: Value doesn't exist | |
44ef02bd UB |
3868 | */ |
3869 | int ftdi_get_eeprom_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value value_name, int* value) | |
3870 | { | |
3871 | switch (value_name) | |
3872 | { | |
56ac0383 TJ |
3873 | case VENDOR_ID: |
3874 | *value = ftdi->eeprom->vendor_id; | |
3875 | break; | |
3876 | case PRODUCT_ID: | |
3877 | *value = ftdi->eeprom->product_id; | |
3878 | break; | |
68e78641 JS |
3879 | case RELEASE_NUMBER: |
3880 | *value = ftdi->eeprom->release_number; | |
3881 | break; | |
56ac0383 TJ |
3882 | case SELF_POWERED: |
3883 | *value = ftdi->eeprom->self_powered; | |
3884 | break; | |
3885 | case REMOTE_WAKEUP: | |
3886 | *value = ftdi->eeprom->remote_wakeup; | |
3887 | break; | |
3888 | case IS_NOT_PNP: | |
3889 | *value = ftdi->eeprom->is_not_pnp; | |
3890 | break; | |
3891 | case SUSPEND_DBUS7: | |
3892 | *value = ftdi->eeprom->suspend_dbus7; | |
3893 | break; | |
3894 | case IN_IS_ISOCHRONOUS: | |
3895 | *value = ftdi->eeprom->in_is_isochronous; | |
3896 | break; | |
cffed9f5 UB |
3897 | case OUT_IS_ISOCHRONOUS: |
3898 | *value = ftdi->eeprom->out_is_isochronous; | |
3899 | break; | |
56ac0383 TJ |
3900 | case SUSPEND_PULL_DOWNS: |
3901 | *value = ftdi->eeprom->suspend_pull_downs; | |
3902 | break; | |
3903 | case USE_SERIAL: | |
3904 | *value = ftdi->eeprom->use_serial; | |
3905 | break; | |
3906 | case USB_VERSION: | |
3907 | *value = ftdi->eeprom->usb_version; | |
3908 | break; | |
cffed9f5 UB |
3909 | case USE_USB_VERSION: |
3910 | *value = ftdi->eeprom->use_usb_version; | |
3911 | break; | |
56ac0383 TJ |
3912 | case MAX_POWER: |
3913 | *value = ftdi->eeprom->max_power; | |
3914 | break; | |
3915 | case CHANNEL_A_TYPE: | |
3916 | *value = ftdi->eeprom->channel_a_type; | |
3917 | break; | |
3918 | case CHANNEL_B_TYPE: | |
3919 | *value = ftdi->eeprom->channel_b_type; | |
3920 | break; | |
3921 | case CHANNEL_A_DRIVER: | |
3922 | *value = ftdi->eeprom->channel_a_driver; | |
3923 | break; | |
3924 | case CHANNEL_B_DRIVER: | |
3925 | *value = ftdi->eeprom->channel_b_driver; | |
3926 | break; | |
be4bae37 AL |
3927 | case CHANNEL_C_DRIVER: |
3928 | *value = ftdi->eeprom->channel_c_driver; | |
3929 | break; | |
3930 | case CHANNEL_D_DRIVER: | |
3931 | *value = ftdi->eeprom->channel_d_driver; | |
3932 | break; | |
3933 | case CHANNEL_A_RS485: | |
3934 | *value = ftdi->eeprom->channel_a_rs485enable; | |
3935 | break; | |
3936 | case CHANNEL_B_RS485: | |
3937 | *value = ftdi->eeprom->channel_b_rs485enable; | |
3938 | break; | |
3939 | case CHANNEL_C_RS485: | |
3940 | *value = ftdi->eeprom->channel_c_rs485enable; | |
3941 | break; | |
3942 | case CHANNEL_D_RS485: | |
3943 | *value = ftdi->eeprom->channel_d_rs485enable; | |
3944 | break; | |
56ac0383 TJ |
3945 | case CBUS_FUNCTION_0: |
3946 | *value = ftdi->eeprom->cbus_function[0]; | |
3947 | break; | |
3948 | case CBUS_FUNCTION_1: | |
3949 | *value = ftdi->eeprom->cbus_function[1]; | |
3950 | break; | |
3951 | case CBUS_FUNCTION_2: | |
3952 | *value = ftdi->eeprom->cbus_function[2]; | |
3953 | break; | |
3954 | case CBUS_FUNCTION_3: | |
3955 | *value = ftdi->eeprom->cbus_function[3]; | |
3956 | break; | |
3957 | case CBUS_FUNCTION_4: | |
3958 | *value = ftdi->eeprom->cbus_function[4]; | |
3959 | break; | |
263d3ba0 UB |
3960 | case CBUS_FUNCTION_5: |
3961 | *value = ftdi->eeprom->cbus_function[5]; | |
3962 | break; | |
3963 | case CBUS_FUNCTION_6: | |
3964 | *value = ftdi->eeprom->cbus_function[6]; | |
3965 | break; | |
3966 | case CBUS_FUNCTION_7: | |
3967 | *value = ftdi->eeprom->cbus_function[7]; | |
3968 | break; | |
3969 | case CBUS_FUNCTION_8: | |
3970 | *value = ftdi->eeprom->cbus_function[8]; | |
3971 | break; | |
3972 | case CBUS_FUNCTION_9: | |
1162549f | 3973 | *value = ftdi->eeprom->cbus_function[9]; |
263d3ba0 | 3974 | break; |
56ac0383 TJ |
3975 | case HIGH_CURRENT: |
3976 | *value = ftdi->eeprom->high_current; | |
3977 | break; | |
3978 | case HIGH_CURRENT_A: | |
3979 | *value = ftdi->eeprom->high_current_a; | |
3980 | break; | |
3981 | case HIGH_CURRENT_B: | |
3982 | *value = ftdi->eeprom->high_current_b; | |
3983 | break; | |
3984 | case INVERT: | |
3985 | *value = ftdi->eeprom->invert; | |
3986 | break; | |
3987 | case GROUP0_DRIVE: | |
3988 | *value = ftdi->eeprom->group0_drive; | |
3989 | break; | |
3990 | case GROUP0_SCHMITT: | |
3991 | *value = ftdi->eeprom->group0_schmitt; | |
3992 | break; | |
3993 | case GROUP0_SLEW: | |
3994 | *value = ftdi->eeprom->group0_slew; | |
3995 | break; | |
3996 | case GROUP1_DRIVE: | |
3997 | *value = ftdi->eeprom->group1_drive; | |
3998 | break; | |
3999 | case GROUP1_SCHMITT: | |
4000 | *value = ftdi->eeprom->group1_schmitt; | |
4001 | break; | |
4002 | case GROUP1_SLEW: | |
4003 | *value = ftdi->eeprom->group1_slew; | |
4004 | break; | |
4005 | case GROUP2_DRIVE: | |
4006 | *value = ftdi->eeprom->group2_drive; | |
4007 | break; | |
4008 | case GROUP2_SCHMITT: | |
4009 | *value = ftdi->eeprom->group2_schmitt; | |
4010 | break; | |
4011 | case GROUP2_SLEW: | |
4012 | *value = ftdi->eeprom->group2_slew; | |
4013 | break; | |
4014 | case GROUP3_DRIVE: | |
4015 | *value = ftdi->eeprom->group3_drive; | |
4016 | break; | |
4017 | case GROUP3_SCHMITT: | |
4018 | *value = ftdi->eeprom->group3_schmitt; | |
4019 | break; | |
4020 | case GROUP3_SLEW: | |
4021 | *value = ftdi->eeprom->group3_slew; | |
4022 | break; | |
74387f27 | 4023 | case POWER_SAVE: |
837a71d6 UB |
4024 | *value = ftdi->eeprom->powersave; |
4025 | break; | |
74387f27 | 4026 | case CLOCK_POLARITY: |
18199b76 UB |
4027 | *value = ftdi->eeprom->clock_polarity; |
4028 | break; | |
74387f27 | 4029 | case DATA_ORDER: |
18199b76 UB |
4030 | *value = ftdi->eeprom->data_order; |
4031 | break; | |
74387f27 | 4032 | case FLOW_CONTROL: |
18199b76 UB |
4033 | *value = ftdi->eeprom->flow_control; |
4034 | break; | |
74387f27 | 4035 | case CHIP_TYPE: |
56ac0383 TJ |
4036 | *value = ftdi->eeprom->chip; |
4037 | break; | |
4038 | case CHIP_SIZE: | |
4039 | *value = ftdi->eeprom->size; | |
4040 | break; | |
08518f8e RA |
4041 | case EXTERNAL_OSCILLATOR: |
4042 | *value = ftdi->eeprom->external_oscillator; | |
4043 | break; | |
56ac0383 TJ |
4044 | default: |
4045 | ftdi_error_return(-1, "Request for unknown EEPROM value"); | |
44ef02bd UB |
4046 | } |
4047 | return 0; | |
4048 | } | |
4049 | ||
4050 | /** | |
4051 | Set a value in the decoded EEPROM Structure | |
4052 | No parameter checking is performed | |
4053 | ||
735e81ea | 4054 | \param ftdi pointer to ftdi_context |
545f9df9 | 4055 | \param value_name Enum of the value to set |
735e81ea | 4056 | \param value to set |
44ef02bd | 4057 | |
735e81ea TJ |
4058 | \retval 0: all fine |
4059 | \retval -1: Value doesn't exist | |
4060 | \retval -2: Value not user settable | |
44ef02bd UB |
4061 | */ |
4062 | int ftdi_set_eeprom_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value value_name, int value) | |
4063 | { | |
4064 | switch (value_name) | |
4065 | { | |
56ac0383 TJ |
4066 | case VENDOR_ID: |
4067 | ftdi->eeprom->vendor_id = value; | |
4068 | break; | |
4069 | case PRODUCT_ID: | |
4070 | ftdi->eeprom->product_id = value; | |
4071 | break; | |
68e78641 JS |
4072 | case RELEASE_NUMBER: |
4073 | ftdi->eeprom->release_number = value; | |
4074 | break; | |
56ac0383 TJ |
4075 | case SELF_POWERED: |
4076 | ftdi->eeprom->self_powered = value; | |
4077 | break; | |
4078 | case REMOTE_WAKEUP: | |
4079 | ftdi->eeprom->remote_wakeup = value; | |
4080 | break; | |
4081 | case IS_NOT_PNP: | |
4082 | ftdi->eeprom->is_not_pnp = value; | |
4083 | break; | |
4084 | case SUSPEND_DBUS7: | |
4085 | ftdi->eeprom->suspend_dbus7 = value; | |
4086 | break; | |
4087 | case IN_IS_ISOCHRONOUS: | |
4088 | ftdi->eeprom->in_is_isochronous = value; | |
4089 | break; | |
cffed9f5 UB |
4090 | case OUT_IS_ISOCHRONOUS: |
4091 | ftdi->eeprom->out_is_isochronous = value; | |
4092 | break; | |
56ac0383 TJ |
4093 | case SUSPEND_PULL_DOWNS: |
4094 | ftdi->eeprom->suspend_pull_downs = value; | |
4095 | break; | |
4096 | case USE_SERIAL: | |
4097 | ftdi->eeprom->use_serial = value; | |
4098 | break; | |
4099 | case USB_VERSION: | |
4100 | ftdi->eeprom->usb_version = value; | |
4101 | break; | |
cffed9f5 UB |
4102 | case USE_USB_VERSION: |
4103 | ftdi->eeprom->use_usb_version = value; | |
4104 | break; | |
56ac0383 TJ |
4105 | case MAX_POWER: |
4106 | ftdi->eeprom->max_power = value; | |
4107 | break; | |
4108 | case CHANNEL_A_TYPE: | |
4109 | ftdi->eeprom->channel_a_type = value; | |
4110 | break; | |
4111 | case CHANNEL_B_TYPE: | |
4112 | ftdi->eeprom->channel_b_type = value; | |
4113 | break; | |
4114 | case CHANNEL_A_DRIVER: | |
4115 | ftdi->eeprom->channel_a_driver = value; | |
4116 | break; | |
4117 | case CHANNEL_B_DRIVER: | |
4118 | ftdi->eeprom->channel_b_driver = value; | |
4119 | break; | |
be4bae37 AL |
4120 | case CHANNEL_C_DRIVER: |
4121 | ftdi->eeprom->channel_c_driver = value; | |
4122 | break; | |
4123 | case CHANNEL_D_DRIVER: | |
4124 | ftdi->eeprom->channel_d_driver = value; | |
4125 | break; | |
4126 | case CHANNEL_A_RS485: | |
4127 | ftdi->eeprom->channel_a_rs485enable = value; | |
4128 | break; | |
4129 | case CHANNEL_B_RS485: | |
4130 | ftdi->eeprom->channel_b_rs485enable = value; | |
4131 | break; | |
4132 | case CHANNEL_C_RS485: | |
4133 | ftdi->eeprom->channel_c_rs485enable = value; | |
4134 | break; | |
4135 | case CHANNEL_D_RS485: | |
4136 | ftdi->eeprom->channel_d_rs485enable = value; | |
4137 | break; | |
56ac0383 TJ |
4138 | case CBUS_FUNCTION_0: |
4139 | ftdi->eeprom->cbus_function[0] = value; | |
4140 | break; | |
4141 | case CBUS_FUNCTION_1: | |
4142 | ftdi->eeprom->cbus_function[1] = value; | |
4143 | break; | |
4144 | case CBUS_FUNCTION_2: | |
4145 | ftdi->eeprom->cbus_function[2] = value; | |
4146 | break; | |
4147 | case CBUS_FUNCTION_3: | |
4148 | ftdi->eeprom->cbus_function[3] = value; | |
4149 | break; | |
4150 | case CBUS_FUNCTION_4: | |
4151 | ftdi->eeprom->cbus_function[4] = value; | |
4152 | break; | |
263d3ba0 UB |
4153 | case CBUS_FUNCTION_5: |
4154 | ftdi->eeprom->cbus_function[5] = value; | |
4155 | break; | |
4156 | case CBUS_FUNCTION_6: | |
4157 | ftdi->eeprom->cbus_function[6] = value; | |
4158 | break; | |
4159 | case CBUS_FUNCTION_7: | |
4160 | ftdi->eeprom->cbus_function[7] = value; | |
4161 | break; | |
4162 | case CBUS_FUNCTION_8: | |
4163 | ftdi->eeprom->cbus_function[8] = value; | |
4164 | break; | |
4165 | case CBUS_FUNCTION_9: | |
4166 | ftdi->eeprom->cbus_function[9] = value; | |
4167 | break; | |
56ac0383 TJ |
4168 | case HIGH_CURRENT: |
4169 | ftdi->eeprom->high_current = value; | |
4170 | break; | |
4171 | case HIGH_CURRENT_A: | |
4172 | ftdi->eeprom->high_current_a = value; | |
4173 | break; | |
4174 | case HIGH_CURRENT_B: | |
4175 | ftdi->eeprom->high_current_b = value; | |
4176 | break; | |
4177 | case INVERT: | |
4178 | ftdi->eeprom->invert = value; | |
4179 | break; | |
4180 | case GROUP0_DRIVE: | |
4181 | ftdi->eeprom->group0_drive = value; | |
4182 | break; | |
4183 | case GROUP0_SCHMITT: | |
4184 | ftdi->eeprom->group0_schmitt = value; | |
4185 | break; | |
4186 | case GROUP0_SLEW: | |
4187 | ftdi->eeprom->group0_slew = value; | |
4188 | break; | |
4189 | case GROUP1_DRIVE: | |
4190 | ftdi->eeprom->group1_drive = value; | |
4191 | break; | |
4192 | case GROUP1_SCHMITT: | |
4193 | ftdi->eeprom->group1_schmitt = value; | |
4194 | break; | |
4195 | case GROUP1_SLEW: | |
4196 | ftdi->eeprom->group1_slew = value; | |
4197 | break; | |
4198 | case GROUP2_DRIVE: | |
4199 | ftdi->eeprom->group2_drive = value; | |
4200 | break; | |
4201 | case GROUP2_SCHMITT: | |
4202 | ftdi->eeprom->group2_schmitt = value; | |
4203 | break; | |
4204 | case GROUP2_SLEW: | |
4205 | ftdi->eeprom->group2_slew = value; | |
4206 | break; | |
4207 | case GROUP3_DRIVE: | |
4208 | ftdi->eeprom->group3_drive = value; | |
4209 | break; | |
4210 | case GROUP3_SCHMITT: | |
4211 | ftdi->eeprom->group3_schmitt = value; | |
4212 | break; | |
4213 | case GROUP3_SLEW: | |
4214 | ftdi->eeprom->group3_slew = value; | |
4215 | break; | |
4216 | case CHIP_TYPE: | |
4217 | ftdi->eeprom->chip = value; | |
4218 | break; | |
74387f27 | 4219 | case POWER_SAVE: |
837a71d6 UB |
4220 | ftdi->eeprom->powersave = value; |
4221 | break; | |
74387f27 | 4222 | case CLOCK_POLARITY: |
18199b76 UB |
4223 | ftdi->eeprom->clock_polarity = value; |
4224 | break; | |
74387f27 | 4225 | case DATA_ORDER: |
18199b76 UB |
4226 | ftdi->eeprom->data_order = value; |
4227 | break; | |
74387f27 | 4228 | case FLOW_CONTROL: |
18199b76 UB |
4229 | ftdi->eeprom->flow_control = value; |
4230 | break; | |
56ac0383 TJ |
4231 | case CHIP_SIZE: |
4232 | ftdi_error_return(-2, "EEPROM Value can't be changed"); | |
34b79ac7 | 4233 | break; |
08518f8e RA |
4234 | case EXTERNAL_OSCILLATOR: |
4235 | ftdi->eeprom->external_oscillator = value; | |
4236 | break; | |
6e962b9a SET |
4237 | case USER_DATA_ADDR: |
4238 | ftdi->eeprom->user_data_addr = value; | |
4239 | break; | |
34b79ac7 | 4240 | |
56ac0383 TJ |
4241 | default : |
4242 | ftdi_error_return(-1, "Request to unknown EEPROM value"); | |
44ef02bd | 4243 | } |
45a3ebd5 | 4244 | ftdi->eeprom->initialized_for_connected_device = 0; |
44ef02bd UB |
4245 | return 0; |
4246 | } | |
4247 | ||
4248 | /** Get the read-only buffer to the binary EEPROM content | |
4249 | ||
4250 | \param ftdi pointer to ftdi_context | |
735e81ea | 4251 | \param buf buffer to receive EEPROM content |
44ef02bd UB |
4252 | \param size Size of receiving buffer |
4253 | ||
4254 | \retval 0: All fine | |
4255 | \retval -1: struct ftdi_contxt or ftdi_eeprom missing | |
200bd3ed | 4256 | \retval -2: Not enough room to store eeprom |
44ef02bd | 4257 | */ |
56ac0383 TJ |
4258 | int ftdi_get_eeprom_buf(struct ftdi_context *ftdi, unsigned char * buf, int size) |
4259 | { | |
4260 | if (!ftdi || !(ftdi->eeprom)) | |
4261 | ftdi_error_return(-1, "No appropriate structure"); | |
b95e4654 | 4262 | |
200bd3ed TJ |
4263 | if (!buf || size < ftdi->eeprom->size) |
4264 | ftdi_error_return(-1, "Not enough room to store eeprom"); | |
4265 | ||
b95e4654 TJ |
4266 | // Only copy up to FTDI_MAX_EEPROM_SIZE bytes |
4267 | if (size > FTDI_MAX_EEPROM_SIZE) | |
4268 | size = FTDI_MAX_EEPROM_SIZE; | |
4269 | ||
56ac0383 | 4270 | memcpy(buf, ftdi->eeprom->buf, size); |
b95e4654 | 4271 | |
56ac0383 TJ |
4272 | return 0; |
4273 | } | |
44ef02bd | 4274 | |
672fd368 UB |
4275 | /** Set the EEPROM content from the user-supplied prefilled buffer |
4276 | ||
4277 | \param ftdi pointer to ftdi_context | |
4278 | \param buf buffer to read EEPROM content | |
4279 | \param size Size of buffer | |
4280 | ||
4281 | \retval 0: All fine | |
6e962b9a | 4282 | \retval -1: struct ftdi_context or ftdi_eeprom or buf missing |
672fd368 UB |
4283 | */ |
4284 | int ftdi_set_eeprom_buf(struct ftdi_context *ftdi, const unsigned char * buf, int size) | |
4285 | { | |
4286 | if (!ftdi || !(ftdi->eeprom) || !buf) | |
4287 | ftdi_error_return(-1, "No appropriate structure"); | |
4288 | ||
4289 | // Only copy up to FTDI_MAX_EEPROM_SIZE bytes | |
4290 | if (size > FTDI_MAX_EEPROM_SIZE) | |
4291 | size = FTDI_MAX_EEPROM_SIZE; | |
4292 | ||
4293 | memcpy(ftdi->eeprom->buf, buf, size); | |
4294 | ||
4295 | return 0; | |
4296 | } | |
4297 | ||
6e962b9a SET |
4298 | /** Set the EEPROM user data content from the user-supplied prefilled buffer |
4299 | ||
4300 | \param ftdi pointer to ftdi_context | |
4301 | \param buf buffer to read EEPROM user data content | |
4302 | \param size Size of buffer | |
4303 | ||
4304 | \retval 0: All fine | |
4305 | \retval -1: struct ftdi_context or ftdi_eeprom or buf missing | |
4306 | */ | |
4307 | int ftdi_set_eeprom_user_data(struct ftdi_context *ftdi, const char * buf, int size) | |
4308 | { | |
4309 | if (!ftdi || !(ftdi->eeprom) || !buf) | |
4310 | ftdi_error_return(-1, "No appropriate structure"); | |
4311 | ||
4312 | ftdi->eeprom->user_data_size = size; | |
4313 | ftdi->eeprom->user_data = buf; | |
4314 | return 0; | |
4315 | } | |
4316 | ||
44ef02bd | 4317 | /** |
c1c70e13 OS |
4318 | Read eeprom location |
4319 | ||
4320 | \param ftdi pointer to ftdi_context | |
4321 | \param eeprom_addr Address of eeprom location to be read | |
4322 | \param eeprom_val Pointer to store read eeprom location | |
4323 | ||
4324 | \retval 0: all fine | |
4325 | \retval -1: read failed | |
22a1b5c1 | 4326 | \retval -2: USB device unavailable |
c1c70e13 OS |
4327 | */ |
4328 | int ftdi_read_eeprom_location (struct ftdi_context *ftdi, int eeprom_addr, unsigned short *eeprom_val) | |
4329 | { | |
1a3cb7f8 YY |
4330 | unsigned char buf[2]; |
4331 | ||
22a1b5c1 TJ |
4332 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
4333 | ftdi_error_return(-2, "USB device unavailable"); | |
4334 | ||
1a3cb7f8 | 4335 | 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 |
4336 | ftdi_error_return(-1, "reading eeprom failed"); |
4337 | ||
1a3cb7f8 YY |
4338 | *eeprom_val = (0xff & buf[0]) | (buf[1] << 8); |
4339 | ||
c1c70e13 OS |
4340 | return 0; |
4341 | } | |
4342 | ||
4343 | /** | |
1941414d TJ |
4344 | Read eeprom |
4345 | ||
4346 | \param ftdi pointer to ftdi_context | |
b8aa7b35 | 4347 | |
1941414d TJ |
4348 | \retval 0: all fine |
4349 | \retval -1: read failed | |
22a1b5c1 | 4350 | \retval -2: USB device unavailable |
1941414d | 4351 | */ |
a35aa9bd | 4352 | int ftdi_read_eeprom(struct ftdi_context *ftdi) |
a8f46ddc | 4353 | { |
a3da1d95 | 4354 | int i; |
a35aa9bd | 4355 | unsigned char *buf; |
a3da1d95 | 4356 | |
22a1b5c1 TJ |
4357 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
4358 | ftdi_error_return(-2, "USB device unavailable"); | |
a35aa9bd | 4359 | buf = ftdi->eeprom->buf; |
22a1b5c1 | 4360 | |
2d543486 | 4361 | for (i = 0; i < FTDI_MAX_EEPROM_SIZE/2; i++) |
22d12cda | 4362 | { |
a35aa9bd | 4363 | if (libusb_control_transfer( |
56ac0383 TJ |
4364 | ftdi->usb_dev, FTDI_DEVICE_IN_REQTYPE,SIO_READ_EEPROM_REQUEST, 0, i, |
4365 | buf+(i*2), 2, ftdi->usb_read_timeout) != 2) | |
c3d95b87 | 4366 | ftdi_error_return(-1, "reading eeprom failed"); |
a3da1d95 GE |
4367 | } |
4368 | ||
2d543486 | 4369 | if (ftdi->type == TYPE_R) |
a35aa9bd | 4370 | ftdi->eeprom->size = 0x80; |
56ac0383 | 4371 | /* Guesses size of eeprom by comparing halves |
2d543486 | 4372 | - will not work with blank eeprom */ |
a35aa9bd | 4373 | else if (strrchr((const char *)buf, 0xff) == ((const char *)buf +FTDI_MAX_EEPROM_SIZE -1)) |
2d543486 | 4374 | ftdi->eeprom->size = -1; |
56ac0383 | 4375 | else if (memcmp(buf,&buf[0x80],0x80) == 0) |
2d543486 | 4376 | ftdi->eeprom->size = 0x80; |
56ac0383 | 4377 | else if (memcmp(buf,&buf[0x40],0x40) == 0) |
2d543486 UB |
4378 | ftdi->eeprom->size = 0x40; |
4379 | else | |
4380 | ftdi->eeprom->size = 0x100; | |
a3da1d95 GE |
4381 | return 0; |
4382 | } | |
4383 | ||
cb6250fa TJ |
4384 | /* |
4385 | ftdi_read_chipid_shift does the bitshift operation needed for the FTDIChip-ID | |
4386 | Function is only used internally | |
4387 | \internal | |
4388 | */ | |
4389 | static unsigned char ftdi_read_chipid_shift(unsigned char value) | |
4390 | { | |
4391 | return ((value & 1) << 1) | | |
22d12cda TJ |
4392 | ((value & 2) << 5) | |
4393 | ((value & 4) >> 2) | | |
4394 | ((value & 8) << 4) | | |
4395 | ((value & 16) >> 1) | | |
4396 | ((value & 32) >> 1) | | |
4397 | ((value & 64) >> 4) | | |
4398 | ((value & 128) >> 2); | |
cb6250fa TJ |
4399 | } |
4400 | ||
4401 | /** | |
4402 | Read the FTDIChip-ID from R-type devices | |
4403 | ||
4404 | \param ftdi pointer to ftdi_context | |
4405 | \param chipid Pointer to store FTDIChip-ID | |
4406 | ||
4407 | \retval 0: all fine | |
4408 | \retval -1: read failed | |
22a1b5c1 | 4409 | \retval -2: USB device unavailable |
cb6250fa TJ |
4410 | */ |
4411 | int ftdi_read_chipid(struct ftdi_context *ftdi, unsigned int *chipid) | |
4412 | { | |
c7eb3112 | 4413 | unsigned int a = 0, b = 0; |
cb6250fa | 4414 | |
22a1b5c1 TJ |
4415 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
4416 | ftdi_error_return(-2, "USB device unavailable"); | |
4417 | ||
579b006f | 4418 | 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 |
4419 | { |
4420 | a = a << 8 | a >> 8; | |
579b006f | 4421 | 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 |
4422 | { |
4423 | b = b << 8 | b >> 8; | |
5230676f | 4424 | a = (a << 16) | (b & 0xFFFF); |
912d50ca TJ |
4425 | a = ftdi_read_chipid_shift(a) | ftdi_read_chipid_shift(a>>8)<<8 |
4426 | | ftdi_read_chipid_shift(a>>16)<<16 | ftdi_read_chipid_shift(a>>24)<<24; | |
cb6250fa | 4427 | *chipid = a ^ 0xa5f0f7d1; |
c7eb3112 | 4428 | return 0; |
cb6250fa TJ |
4429 | } |
4430 | } | |
4431 | ||
c7eb3112 | 4432 | ftdi_error_return(-1, "read of FTDIChip-ID failed"); |
cb6250fa TJ |
4433 | } |
4434 | ||
1941414d | 4435 | /** |
c1c70e13 OS |
4436 | Write eeprom location |
4437 | ||
4438 | \param ftdi pointer to ftdi_context | |
4439 | \param eeprom_addr Address of eeprom location to be written | |
4440 | \param eeprom_val Value to be written | |
4441 | ||
4442 | \retval 0: all fine | |
a661e3e4 | 4443 | \retval -1: write failed |
22a1b5c1 | 4444 | \retval -2: USB device unavailable |
a661e3e4 UB |
4445 | \retval -3: Invalid access to checksum protected area below 0x80 |
4446 | \retval -4: Device can't access unprotected area | |
4447 | \retval -5: Reading chip type failed | |
c1c70e13 | 4448 | */ |
56ac0383 | 4449 | int ftdi_write_eeprom_location(struct ftdi_context *ftdi, int eeprom_addr, |
a661e3e4 | 4450 | unsigned short eeprom_val) |
c1c70e13 | 4451 | { |
a661e3e4 UB |
4452 | int chip_type_location; |
4453 | unsigned short chip_type; | |
4454 | ||
22a1b5c1 TJ |
4455 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
4456 | ftdi_error_return(-2, "USB device unavailable"); | |
4457 | ||
56ac0383 | 4458 | if (eeprom_addr <0x80) |
a661e3e4 UB |
4459 | ftdi_error_return(-2, "Invalid access to checksum protected area below 0x80"); |
4460 | ||
4461 | ||
4462 | switch (ftdi->type) | |
4463 | { | |
56ac0383 TJ |
4464 | case TYPE_BM: |
4465 | case TYPE_2232C: | |
4466 | chip_type_location = 0x14; | |
4467 | break; | |
4468 | case TYPE_2232H: | |
4469 | case TYPE_4232H: | |
4470 | chip_type_location = 0x18; | |
4471 | break; | |
c7e4c09e UB |
4472 | case TYPE_232H: |
4473 | chip_type_location = 0x1e; | |
4474 | break; | |
56ac0383 TJ |
4475 | default: |
4476 | ftdi_error_return(-4, "Device can't access unprotected area"); | |
a661e3e4 UB |
4477 | } |
4478 | ||
56ac0383 | 4479 | if (ftdi_read_eeprom_location( ftdi, chip_type_location>>1, &chip_type)) |
a00c0a85 | 4480 | ftdi_error_return(-5, "Reading failed"); |
56ac0383 TJ |
4481 | fprintf(stderr," loc 0x%04x val 0x%04x\n", chip_type_location,chip_type); |
4482 | if ((chip_type & 0xff) != 0x66) | |
a661e3e4 UB |
4483 | { |
4484 | ftdi_error_return(-6, "EEPROM is not of 93x66"); | |
4485 | } | |
4486 | ||
579b006f | 4487 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
56ac0383 TJ |
4488 | SIO_WRITE_EEPROM_REQUEST, eeprom_val, eeprom_addr, |
4489 | NULL, 0, ftdi->usb_write_timeout) != 0) | |
c1c70e13 OS |
4490 | ftdi_error_return(-1, "unable to write eeprom"); |
4491 | ||
4492 | return 0; | |
4493 | } | |
4494 | ||
4495 | /** | |
1941414d | 4496 | Write eeprom |
a3da1d95 | 4497 | |
1941414d | 4498 | \param ftdi pointer to ftdi_context |
56ac0383 | 4499 | |
1941414d TJ |
4500 | \retval 0: all fine |
4501 | \retval -1: read failed | |
22a1b5c1 | 4502 | \retval -2: USB device unavailable |
44f41f11 | 4503 | \retval -3: EEPROM not initialized for the connected device; |
1941414d | 4504 | */ |
a35aa9bd | 4505 | int ftdi_write_eeprom(struct ftdi_context *ftdi) |
a8f46ddc | 4506 | { |
ba5329be | 4507 | unsigned short usb_val, status; |
e30da501 | 4508 | int i, ret; |
a35aa9bd | 4509 | unsigned char *eeprom; |
a3da1d95 | 4510 | |
22a1b5c1 TJ |
4511 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
4512 | ftdi_error_return(-2, "USB device unavailable"); | |
44f41f11 UB |
4513 | |
4514 | if(ftdi->eeprom->initialized_for_connected_device == 0) | |
4515 | ftdi_error_return(-3, "EEPROM not initialized for the connected device"); | |
4516 | ||
a35aa9bd | 4517 | eeprom = ftdi->eeprom->buf; |
22a1b5c1 | 4518 | |
ba5329be | 4519 | /* These commands were traced while running MProg */ |
e30da501 TJ |
4520 | if ((ret = ftdi_usb_reset(ftdi)) != 0) |
4521 | return ret; | |
4522 | if ((ret = ftdi_poll_modem_status(ftdi, &status)) != 0) | |
4523 | return ret; | |
4524 | if ((ret = ftdi_set_latency_timer(ftdi, 0x77)) != 0) | |
4525 | return ret; | |
ba5329be | 4526 | |
c0a96aed | 4527 | for (i = 0; i < ftdi->eeprom->size/2; i++) |
22d12cda | 4528 | { |
2f80efc2 | 4529 | /* Do not try to write to reserved area */ |
74387f27 TJ |
4530 | if ((ftdi->type == TYPE_230X) && (i == 0x40)) |
4531 | { | |
2f80efc2 NP |
4532 | i = 0x50; |
4533 | } | |
d9f0cce7 TJ |
4534 | usb_val = eeprom[i*2]; |
4535 | usb_val += eeprom[(i*2)+1] << 8; | |
579b006f JZ |
4536 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
4537 | SIO_WRITE_EEPROM_REQUEST, usb_val, i, | |
4538 | NULL, 0, ftdi->usb_write_timeout) < 0) | |
c3d95b87 | 4539 | ftdi_error_return(-1, "unable to write eeprom"); |
a3da1d95 GE |
4540 | } |
4541 | ||
4542 | return 0; | |
4543 | } | |
4544 | ||
1941414d TJ |
4545 | /** |
4546 | Erase eeprom | |
a3da1d95 | 4547 | |
a5e1bd8c MK |
4548 | This is not supported on FT232R/FT245R according to the MProg manual from FTDI. |
4549 | ||
1941414d TJ |
4550 | \param ftdi pointer to ftdi_context |
4551 | ||
4552 | \retval 0: all fine | |
4553 | \retval -1: erase failed | |
22a1b5c1 | 4554 | \retval -2: USB device unavailable |
99404ad5 UB |
4555 | \retval -3: Writing magic failed |
4556 | \retval -4: Read EEPROM failed | |
4557 | \retval -5: Unexpected EEPROM value | |
1941414d | 4558 | */ |
99404ad5 | 4559 | #define MAGIC 0x55aa |
a8f46ddc TJ |
4560 | int ftdi_erase_eeprom(struct ftdi_context *ftdi) |
4561 | { | |
99404ad5 | 4562 | unsigned short eeprom_value; |
22a1b5c1 TJ |
4563 | if (ftdi == NULL || ftdi->usb_dev == NULL) |
4564 | ftdi_error_return(-2, "USB device unavailable"); | |
4565 | ||
519bbce1 | 4566 | if ((ftdi->type == TYPE_R) || (ftdi->type == TYPE_230X)) |
99404ad5 UB |
4567 | { |
4568 | ftdi->eeprom->chip = 0; | |
4569 | return 0; | |
4570 | } | |
4571 | ||
56ac0383 | 4572 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, SIO_ERASE_EEPROM_REQUEST, |
99404ad5 | 4573 | 0, 0, NULL, 0, ftdi->usb_write_timeout) < 0) |
c3d95b87 | 4574 | ftdi_error_return(-1, "unable to erase eeprom"); |
a3da1d95 | 4575 | |
56ac0383 | 4576 | |
99404ad5 UB |
4577 | /* detect chip type by writing 0x55AA as magic at word position 0xc0 |
4578 | Chip is 93x46 if magic is read at word position 0x00, as wraparound happens around 0x40 | |
4579 | Chip is 93x56 if magic is read at word position 0x40, as wraparound happens around 0x80 | |
4580 | Chip is 93x66 if magic is only read at word position 0xc0*/ | |
10186c1f | 4581 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, |
56ac0383 TJ |
4582 | SIO_WRITE_EEPROM_REQUEST, MAGIC, 0xc0, |
4583 | NULL, 0, ftdi->usb_write_timeout) != 0) | |
99404ad5 | 4584 | ftdi_error_return(-3, "Writing magic failed"); |
56ac0383 | 4585 | if (ftdi_read_eeprom_location( ftdi, 0x00, &eeprom_value)) |
a00c0a85 | 4586 | ftdi_error_return(-4, "Reading failed"); |
56ac0383 | 4587 | if (eeprom_value == MAGIC) |
99404ad5 UB |
4588 | { |
4589 | ftdi->eeprom->chip = 0x46; | |
4590 | } | |
56ac0383 | 4591 | else |
99404ad5 | 4592 | { |
56ac0383 | 4593 | if (ftdi_read_eeprom_location( ftdi, 0x40, &eeprom_value)) |
a00c0a85 | 4594 | ftdi_error_return(-4, "Reading failed"); |
56ac0383 | 4595 | if (eeprom_value == MAGIC) |
99404ad5 | 4596 | ftdi->eeprom->chip = 0x56; |
56ac0383 | 4597 | else |
99404ad5 | 4598 | { |
56ac0383 | 4599 | if (ftdi_read_eeprom_location( ftdi, 0xc0, &eeprom_value)) |
a00c0a85 | 4600 | ftdi_error_return(-4, "Reading failed"); |
56ac0383 | 4601 | if (eeprom_value == MAGIC) |
99404ad5 UB |
4602 | ftdi->eeprom->chip = 0x66; |
4603 | else | |
4604 | { | |
4605 | ftdi->eeprom->chip = -1; | |
4606 | } | |
4607 | } | |
4608 | } | |
56ac0383 | 4609 | if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, SIO_ERASE_EEPROM_REQUEST, |
99404ad5 UB |
4610 | 0, 0, NULL, 0, ftdi->usb_write_timeout) < 0) |
4611 | ftdi_error_return(-1, "unable to erase eeprom"); | |
a3da1d95 GE |
4612 | return 0; |
4613 | } | |
c3d95b87 | 4614 | |
1941414d TJ |
4615 | /** |
4616 | Get string representation for last error code | |
c3d95b87 | 4617 | |
1941414d TJ |
4618 | \param ftdi pointer to ftdi_context |
4619 | ||
4620 | \retval Pointer to error string | |
4621 | */ | |
c45d2630 | 4622 | const char *ftdi_get_error_string (struct ftdi_context *ftdi) |
c3d95b87 | 4623 | { |
22a1b5c1 TJ |
4624 | if (ftdi == NULL) |
4625 | return ""; | |
4626 | ||
c3d95b87 TJ |
4627 | return ftdi->error_str; |
4628 | } | |
a01d31e2 | 4629 | |
b5ec1820 | 4630 | /* @} end of doxygen libftdi group */ |