----------------------------------------------------------------------------- Read data from the HID port -----------------------------------------------------------------------------
| 375 | // Read data from the HID port |
| 376 | //----------------------------------------------------------------------------- |
| 377 | void HidController::Read |
| 378 | ( |
| 379 | ) |
| 380 | { |
| 381 | uint8 buffer[FEATURE_REPORT_LENGTH]; |
| 382 | int bytesRead = 0; |
| 383 | uint8 inputReport[INPUT_REPORT_LENGTH]; |
| 384 | TimeStamp readTimer; |
| 385 | |
| 386 | while( true ) |
| 387 | { |
| 388 | // Rx feature report buffer should contain |
| 389 | // [0] - 0x05 (rx feature report ID) |
| 390 | // [1] - length of rx data (or 0x00 and no further bytes if no rx data waiting) |
| 391 | // [2]... - rx data |
| 392 | // We poll this waiting for data. |
| 393 | bytesRead = GetFeatureReport(FEATURE_REPORT_LENGTH, 0x5, buffer); |
| 394 | CHECK_HIDAPI_RESULT(bytesRead, HidPortError); |
| 395 | if( bytesRead >= 2 ) |
| 396 | { |
| 397 | |
| 398 | if( buffer[1] > 0 ) |
| 399 | { |
| 400 | string tmp = ""; |
| 401 | for (int i = 0; i < buffer[1]; i++) |
| 402 | { |
| 403 | char bstr[16]; |
| 404 | snprintf( bstr, sizeof(bstr), "0x%.2x ", buffer[2+i] ); |
| 405 | tmp += bstr; |
| 406 | } |
| 407 | Log::Write( LogLevel_Detail, "hid report read=%d ID=%d len=%d %s", bytesRead, buffer[0], buffer[1], tmp.c_str() ); |
| 408 | } |
| 409 | |
| 410 | if( buffer[1] > 0 ) |
| 411 | { |
| 412 | Put( &buffer[2], buffer[1] ); |
| 413 | } |
| 414 | } |
| 415 | if( readTimer.TimeRemaining() <= 0 ) |
| 416 | { |
| 417 | // Hang a hid_read to acknowledge receipt. Seems the response is conveying |
| 418 | // transaction status. |
| 419 | // Wayne-Dalton input report data is structured as follows (best guess): |
| 420 | // [0] 0x03 - input report ID |
| 421 | // [1] 0x01 - ??? never changes |
| 422 | // [2] 0xNN - if 0x01, no feature reports waiting |
| 423 | // if 0x02, feature report ID 0x05 is waiting to be retrieved |
| 424 | // [3,4] 0xNNNN - Number of ZWave messages? |
| 425 | |
| 426 | int hidApiResult = hid_read( m_hHidController, inputReport, INPUT_REPORT_LENGTH ); |
| 427 | //if( hidApiResult != 0 ) |
| 428 | //{ |
| 429 | // string tmp = ""; |
| 430 | // for( int i = 0; i < INPUT_REPORT_LENGTH; i++ ) |
| 431 | // { |
| 432 | // char bstr[16]; |
| 433 | // snprintf(bstr, sizeof(bstr), "%02x ", inputReport[i] ); |
| 434 | // tmp += bstr; |