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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "device/serial/serial_io_handler_posix.h" | 5 #include "device/serial/serial_io_handler_posix.h" |
| 6 | 6 |
| 7 #include <sys/ioctl.h> | 7 #include <sys/ioctl.h> |
| 8 #include <termios.h> | 8 #include <termios.h> |
| 9 | 9 |
| 10 #include "base/files/file_util.h" | 10 #include "base/files/file_util.h" |
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| 216 | 216 |
| 217 DCHECK(options().parity_bit != serial::ParityBit::NONE); | 217 DCHECK(options().parity_bit != serial::ParityBit::NONE); |
| 218 switch (options().parity_bit) { | 218 switch (options().parity_bit) { |
| 219 case serial::ParityBit::EVEN: | 219 case serial::ParityBit::EVEN: |
| 220 config.c_cflag |= PARENB; | 220 config.c_cflag |= PARENB; |
| 221 config.c_cflag &= ~PARODD; | 221 config.c_cflag &= ~PARODD; |
| 222 break; | 222 break; |
| 223 case serial::ParityBit::ODD: | 223 case serial::ParityBit::ODD: |
| 224 config.c_cflag |= (PARODD | PARENB); | 224 config.c_cflag |= (PARODD | PARENB); |
| 225 break; | 225 break; |
| 226 case serial::ParityBit::NO: | 226 case serial::ParityBit::NO_PARITY: |
| 227 default: | 227 default: |
| 228 config.c_cflag &= ~(PARODD | PARENB); | 228 config.c_cflag &= ~(PARODD | PARENB); |
| 229 break; | 229 break; |
| 230 } | 230 } |
| 231 | 231 |
| 232 error_detect_state_ = ErrorDetectState::NO_ERROR; | 232 error_detect_state_ = ErrorDetectState::NO_ERROR; |
| 233 num_chars_stashed_ = 0; | 233 num_chars_stashed_ = 0; |
| 234 | 234 |
| 235 if (config.c_cflag & PARENB) { | 235 if (config.c_cflag & PARENB) { |
| 236 config.c_iflag &= ~IGNPAR; | 236 config.c_iflag &= ~IGNPAR; |
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| 485 info->data_bits = serial::DataBits::SEVEN; | 485 info->data_bits = serial::DataBits::SEVEN; |
| 486 } else if ((config.c_cflag & CSIZE) == CS8) { | 486 } else if ((config.c_cflag & CSIZE) == CS8) { |
| 487 info->data_bits = serial::DataBits::EIGHT; | 487 info->data_bits = serial::DataBits::EIGHT; |
| 488 } else { | 488 } else { |
| 489 info->data_bits = serial::DataBits::NONE; | 489 info->data_bits = serial::DataBits::NONE; |
| 490 } | 490 } |
| 491 if (config.c_cflag & PARENB) { | 491 if (config.c_cflag & PARENB) { |
| 492 info->parity_bit = (config.c_cflag & PARODD) ? serial::ParityBit::ODD | 492 info->parity_bit = (config.c_cflag & PARODD) ? serial::ParityBit::ODD |
| 493 : serial::ParityBit::EVEN; | 493 : serial::ParityBit::EVEN; |
| 494 } else { | 494 } else { |
| 495 info->parity_bit = serial::ParityBit::NO; | 495 info->parity_bit = serial::ParityBit::NO_PARITY; |
| 496 } | 496 } |
| 497 info->stop_bits = | 497 info->stop_bits = |
| 498 (config.c_cflag & CSTOPB) ? serial::StopBits::TWO : serial::StopBits::ONE; | 498 (config.c_cflag & CSTOPB) ? serial::StopBits::TWO : serial::StopBits::ONE; |
| 499 info->cts_flow_control = (config.c_cflag & CRTSCTS) != 0; | 499 info->cts_flow_control = (config.c_cflag & CRTSCTS) != 0; |
| 500 return info; | 500 return info; |
| 501 } | 501 } |
| 502 | 502 |
| 503 bool SerialIoHandlerPosix::SetBreak() { | 503 bool SerialIoHandlerPosix::SetBreak() { |
| 504 if (ioctl(file().GetPlatformFile(), TIOCSBRK, 0) != 0) { | 504 if (ioctl(file().GetPlatformFile(), TIOCSBRK, 0) != 0) { |
| 505 VPLOG(1) << "Failed to set break"; | 505 VPLOG(1) << "Failed to set break"; |
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| 631 memcpy(buffer, chars_stashed_, std::min(new_bytes_read, 2)); | 631 memcpy(buffer, chars_stashed_, std::min(new_bytes_read, 2)); |
| 632 memcpy(chars_stashed_, tmp, num_chars_stashed_); | 632 memcpy(chars_stashed_, tmp, num_chars_stashed_); |
| 633 return new_bytes_read; | 633 return new_bytes_read; |
| 634 } | 634 } |
| 635 | 635 |
| 636 std::string SerialIoHandler::MaybeFixUpPortName(const std::string& port_name) { | 636 std::string SerialIoHandler::MaybeFixUpPortName(const std::string& port_name) { |
| 637 return port_name; | 637 return port_name; |
| 638 } | 638 } |
| 639 | 639 |
| 640 } // namespace device | 640 } // namespace device |
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