| 1 | /*************************************************************************** |
| 2 | ftdi.cpp - C++ wraper for libftdi |
| 3 | ------------------- |
| 4 | begin : Mon Oct 13 2008 |
| 5 | copyright : (C) 2008 by Marek VavruĊĦa |
| 6 | email : opensource@intra2net.com and marek@vavrusa.com |
| 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 | ***************************************************************************/ |
| 16 | |
| 17 | #include "ftdi.hpp" |
| 18 | #include "ftdi.h" |
| 19 | |
| 20 | namespace Ftdi |
| 21 | { |
| 22 | |
| 23 | class Context::Private |
| 24 | { |
| 25 | public: |
| 26 | Private() |
| 27 | : ftdi(0), dev(0), open(false) |
| 28 | { |
| 29 | } |
| 30 | |
| 31 | bool open; |
| 32 | |
| 33 | struct ftdi_context* ftdi; |
| 34 | struct usb_device* dev; |
| 35 | |
| 36 | std::string vendor; |
| 37 | std::string description; |
| 38 | std::string serial; |
| 39 | }; |
| 40 | |
| 41 | /*! \brief Constructor. |
| 42 | */ |
| 43 | Context::Context() |
| 44 | : d( new Private() ) |
| 45 | { |
| 46 | d->ftdi = ftdi_new(); |
| 47 | } |
| 48 | |
| 49 | /*! \brief Destructor. |
| 50 | */ |
| 51 | Context::~Context() |
| 52 | { |
| 53 | if (d->open) |
| 54 | close(); |
| 55 | |
| 56 | ftdi_free(d->ftdi); |
| 57 | delete d; |
| 58 | } |
| 59 | |
| 60 | bool Context::is_open() |
| 61 | { |
| 62 | return d->open; |
| 63 | } |
| 64 | |
| 65 | int Context::open(int vendor, int product, const std::string& description, const std::string& serial) |
| 66 | { |
| 67 | int ret = 0; |
| 68 | |
| 69 | if (description.empty() && serial.empty()) |
| 70 | ret = ftdi_usb_open(d->ftdi, vendor, product); |
| 71 | else |
| 72 | ret = ftdi_usb_open_desc(d->ftdi, vendor, product, description.c_str(), serial.c_str()); |
| 73 | |
| 74 | d->dev = usb_device(d->ftdi->usb_dev); |
| 75 | |
| 76 | if ((ret = ftdi_usb_open_dev(d->ftdi, d->dev)) >= 0) |
| 77 | { |
| 78 | d->open = true; |
| 79 | get_strings(); |
| 80 | } |
| 81 | |
| 82 | return ret; |
| 83 | } |
| 84 | |
| 85 | int Context::open(struct usb_device *dev) |
| 86 | { |
| 87 | int ret = 0; |
| 88 | |
| 89 | if (dev != 0) |
| 90 | d->dev = dev; |
| 91 | |
| 92 | if (d->dev == 0) |
| 93 | return -1; |
| 94 | |
| 95 | if ((ret = ftdi_usb_open_dev(d->ftdi, d->dev)) >= 0) |
| 96 | { |
| 97 | d->open = true; |
| 98 | get_strings(); |
| 99 | } |
| 100 | |
| 101 | return ret; |
| 102 | } |
| 103 | |
| 104 | int Context::close() |
| 105 | { |
| 106 | d->open = false; |
| 107 | return ftdi_usb_close(d->ftdi); |
| 108 | } |
| 109 | |
| 110 | int Context::reset() |
| 111 | { |
| 112 | return ftdi_usb_reset(d->ftdi); |
| 113 | } |
| 114 | |
| 115 | int Context::flush(int mask) |
| 116 | { |
| 117 | int ret = 1; |
| 118 | |
| 119 | if (mask & Input) |
| 120 | ret &= ftdi_usb_purge_rx_buffer(d->ftdi); |
| 121 | if (mask & Output) |
| 122 | ret &= ftdi_usb_purge_tx_buffer(d->ftdi); |
| 123 | |
| 124 | return ret; |
| 125 | } |
| 126 | |
| 127 | int Context::set_interface(enum ftdi_interface interface) |
| 128 | { |
| 129 | return ftdi_set_interface(d->ftdi, interface); |
| 130 | } |
| 131 | |
| 132 | void Context::set_usb_device(struct usb_dev_handle *dev) |
| 133 | { |
| 134 | ftdi_set_usbdev(d->ftdi, dev); |
| 135 | d->dev = usb_device(dev); |
| 136 | } |
| 137 | |
| 138 | int Context::set_baud_rate(int baudrate) |
| 139 | { |
| 140 | return ftdi_set_baudrate(d->ftdi, baudrate); |
| 141 | } |
| 142 | |
| 143 | int Context::set_line_property(enum ftdi_bits_type bits, enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity) |
| 144 | { |
| 145 | return ftdi_set_line_property(d->ftdi, bits, sbit, parity); |
| 146 | } |
| 147 | |
| 148 | int Context::set_line_property(enum ftdi_bits_type bits, enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity, enum ftdi_break_type break_type) |
| 149 | { |
| 150 | return ftdi_set_line_property2(d->ftdi, bits, sbit, parity, break_type); |
| 151 | } |
| 152 | |
| 153 | int Context::read(unsigned char *buf, int size) |
| 154 | { |
| 155 | return ftdi_read_data(d->ftdi, buf, size); |
| 156 | } |
| 157 | |
| 158 | int Context::set_read_chunk_size(unsigned int chunksize) |
| 159 | { |
| 160 | return ftdi_read_data_set_chunksize(d->ftdi, chunksize); |
| 161 | } |
| 162 | |
| 163 | int Context::read_chunk_size() |
| 164 | { |
| 165 | unsigned chunk = -1; |
| 166 | if (ftdi_read_data_get_chunksize(d->ftdi, &chunk) < 0) |
| 167 | return -1; |
| 168 | |
| 169 | return chunk; |
| 170 | } |
| 171 | |
| 172 | int Context::write(unsigned char *buf, int size) |
| 173 | { |
| 174 | return ftdi_write_data(d->ftdi, buf, size); |
| 175 | } |
| 176 | |
| 177 | int Context::set_write_chunk_size(unsigned int chunksize) |
| 178 | { |
| 179 | return ftdi_write_data_set_chunksize(d->ftdi, chunksize); |
| 180 | } |
| 181 | |
| 182 | int Context::write_chunk_size() |
| 183 | { |
| 184 | unsigned chunk = -1; |
| 185 | if (ftdi_write_data_get_chunksize(d->ftdi, &chunk) < 0) |
| 186 | return -1; |
| 187 | |
| 188 | return chunk; |
| 189 | } |
| 190 | |
| 191 | int Context::set_flow_control(int flowctrl) |
| 192 | { |
| 193 | return ftdi_setflowctrl(d->ftdi, flowctrl); |
| 194 | } |
| 195 | |
| 196 | int Context::set_modem_control(int mask) |
| 197 | { |
| 198 | int dtr = 0, rts = 0; |
| 199 | |
| 200 | if (mask & Dtr) |
| 201 | dtr = 1; |
| 202 | if (mask & Rts) |
| 203 | rts = 1; |
| 204 | |
| 205 | return ftdi_setdtr_rts(d->ftdi, dtr, rts); |
| 206 | } |
| 207 | |
| 208 | int Context::set_dtr(bool state) |
| 209 | { |
| 210 | return ftdi_setdtr(d->ftdi, state); |
| 211 | } |
| 212 | |
| 213 | int Context::set_rts(bool state) |
| 214 | { |
| 215 | return ftdi_setrts(d->ftdi, state); |
| 216 | } |
| 217 | |
| 218 | int Context::set_latency(unsigned char latency) |
| 219 | { |
| 220 | return ftdi_set_latency_timer(d->ftdi, latency); |
| 221 | } |
| 222 | |
| 223 | unsigned Context::latency() |
| 224 | { |
| 225 | unsigned char latency = 0; |
| 226 | ftdi_get_latency_timer(d->ftdi, &latency); |
| 227 | return latency; |
| 228 | } |
| 229 | |
| 230 | unsigned short Context::poll_modem_status() |
| 231 | { |
| 232 | unsigned short status = 0; |
| 233 | ftdi_poll_modem_status(d->ftdi, &status); |
| 234 | return status; |
| 235 | } |
| 236 | |
| 237 | int Context::set_event_char(unsigned char eventch, unsigned char enable) |
| 238 | { |
| 239 | return ftdi_set_event_char(d->ftdi, eventch, enable); |
| 240 | } |
| 241 | |
| 242 | int Context::set_error_char(unsigned char errorch, unsigned char enable) |
| 243 | { |
| 244 | return ftdi_set_error_char(d->ftdi, errorch, enable); |
| 245 | } |
| 246 | |
| 247 | int Context::bitbang_enable(unsigned char bitmask) |
| 248 | { |
| 249 | return ftdi_enable_bitbang(d->ftdi, bitmask); |
| 250 | } |
| 251 | |
| 252 | int Context::bitbang_disable() |
| 253 | { |
| 254 | return ftdi_disable_bitbang(d->ftdi); |
| 255 | } |
| 256 | |
| 257 | int Context::set_bitmode(unsigned char bitmask, unsigned char mode) |
| 258 | { |
| 259 | return ftdi_set_bitmode(d->ftdi, bitmask, mode); |
| 260 | } |
| 261 | |
| 262 | int Context::read_pins(unsigned char *pins) |
| 263 | { |
| 264 | return ftdi_read_pins(d->ftdi, pins); |
| 265 | } |
| 266 | |
| 267 | char* Context::error_string() |
| 268 | { |
| 269 | return ftdi_get_error_string(d->ftdi); |
| 270 | } |
| 271 | |
| 272 | int Context::get_strings() |
| 273 | { |
| 274 | // Prepare buffers |
| 275 | char vendor[512], desc[512], serial[512]; |
| 276 | |
| 277 | int ret = ftdi_usb_get_strings(d->ftdi, d->dev, vendor, 512, desc, 512, serial, 512); |
| 278 | |
| 279 | if (ret < 0) |
| 280 | return -1; |
| 281 | |
| 282 | d->vendor = vendor; |
| 283 | d->description = desc; |
| 284 | d->serial = serial; |
| 285 | |
| 286 | return 1; |
| 287 | } |
| 288 | |
| 289 | /*! \fn vendor |
| 290 | * \fn description |
| 291 | * \fn serial |
| 292 | * \brief Device strings properties. |
| 293 | */ |
| 294 | const std::string& Context::vendor() |
| 295 | { |
| 296 | return d->vendor; |
| 297 | } |
| 298 | |
| 299 | const std::string& Context::description() |
| 300 | { |
| 301 | return d->description; |
| 302 | } |
| 303 | |
| 304 | const std::string& Context::serial() |
| 305 | { |
| 306 | return d->serial; |
| 307 | } |
| 308 | |
| 309 | void Context::set_context(struct ftdi_context* context) |
| 310 | { |
| 311 | ftdi_free(d->ftdi); |
| 312 | d->ftdi = context; |
| 313 | } |
| 314 | |
| 315 | void Context::set_usb_device(struct usb_device *dev) |
| 316 | { |
| 317 | d->dev = dev; |
| 318 | } |
| 319 | |
| 320 | struct ftdi_context* Context::context() |
| 321 | { |
| 322 | return d->ftdi; |
| 323 | } |
| 324 | |
| 325 | class Eeprom::Private |
| 326 | { |
| 327 | public: |
| 328 | Private() |
| 329 | : context(0) |
| 330 | {} |
| 331 | |
| 332 | struct ftdi_eeprom eeprom; |
| 333 | struct ftdi_context* context; |
| 334 | }; |
| 335 | |
| 336 | Eeprom::Eeprom(Context* parent) |
| 337 | : d ( new Private() ) |
| 338 | { |
| 339 | d->context = parent->context(); |
| 340 | } |
| 341 | |
| 342 | Eeprom::~Eeprom() |
| 343 | { |
| 344 | delete d; |
| 345 | } |
| 346 | |
| 347 | void Eeprom::init_defaults() |
| 348 | { |
| 349 | return ftdi_eeprom_initdefaults(&d->eeprom); |
| 350 | } |
| 351 | |
| 352 | void Eeprom::set_size(int size) |
| 353 | { |
| 354 | return ftdi_eeprom_setsize(d->context, &d->eeprom, size); |
| 355 | } |
| 356 | |
| 357 | int Eeprom::size(unsigned char *eeprom, int maxsize) |
| 358 | { |
| 359 | return ftdi_read_eeprom_getsize(d->context, eeprom, maxsize); |
| 360 | } |
| 361 | |
| 362 | int Eeprom::chip_id(unsigned int *chipid) |
| 363 | { |
| 364 | return ftdi_read_chipid(d->context, chipid); |
| 365 | } |
| 366 | |
| 367 | int Eeprom::build(unsigned char *output) |
| 368 | { |
| 369 | return ftdi_eeprom_build(&d->eeprom, output); |
| 370 | } |
| 371 | |
| 372 | int Eeprom::read(unsigned char *eeprom) |
| 373 | { |
| 374 | return ftdi_read_eeprom(d->context, eeprom); |
| 375 | } |
| 376 | |
| 377 | int Eeprom::write(unsigned char *eeprom) |
| 378 | { |
| 379 | return ftdi_write_eeprom(d->context, eeprom); |
| 380 | } |
| 381 | |
| 382 | int Eeprom::erase() |
| 383 | { |
| 384 | return ftdi_erase_eeprom(d->context); |
| 385 | } |
| 386 | |
| 387 | class List::Private |
| 388 | { |
| 389 | public: |
| 390 | Private() |
| 391 | : list(0) |
| 392 | {} |
| 393 | |
| 394 | struct ftdi_device_list* list; |
| 395 | }; |
| 396 | |
| 397 | List::List(struct ftdi_device_list* devlist) |
| 398 | : ListBase(), d( new Private() ) |
| 399 | { |
| 400 | if (devlist != 0) |
| 401 | { |
| 402 | // Iterate list |
| 403 | Context* c = 0; |
| 404 | for (d->list = devlist; d->list != 0; d->list = d->list->next) |
| 405 | { |
| 406 | c = new Context(); |
| 407 | c->set_usb_device(d->list->dev); |
| 408 | push_back(c); |
| 409 | } |
| 410 | |
| 411 | // Store pointer |
| 412 | d->list = devlist; |
| 413 | } |
| 414 | } |
| 415 | |
| 416 | List::~List() |
| 417 | { |
| 418 | // Deallocate instances |
| 419 | for (iterator it = begin(); it != end(); it++) |
| 420 | delete *it; |
| 421 | |
| 422 | // Clear list |
| 423 | clear(); |
| 424 | ftdi_list_free(&d->list); |
| 425 | |
| 426 | // Delete d-ptr |
| 427 | delete d; |
| 428 | } |
| 429 | |
| 430 | List* List::find_all(int vendor, int product) |
| 431 | { |
| 432 | struct ftdi_device_list* dlist = 0; |
| 433 | struct ftdi_context ftdi; |
| 434 | ftdi_init(&ftdi); |
| 435 | ftdi_usb_find_all(&ftdi, &dlist, vendor, product); |
| 436 | ftdi_deinit(&ftdi); |
| 437 | return new List(dlist); |
| 438 | } |
| 439 | |
| 440 | } |