1 /* 2 * spcp8x5 USB to serial adaptor driver 3 * 4 * Copyright (C) 2010 Johan Hovold (jhovold@gmail.com) 5 * Copyright (C) 2006 Linxb (xubin.lin@worldplus.com.cn) 6 * Copyright (C) 2006 S1 Corp. 7 * 8 * Original driver for 2.6.10 pl2303 driver by 9 * Greg Kroah-Hartman (greg@kroah.com) 10 * Changes for 2.6.20 by Harald Klein <hari@vt100.at> 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of the GNU General Public License as published by 14 * the Free Software Foundation; either version 2 of the License, or 15 * (at your option) any later version. 16 * 17 * 18 */ 19 #include <linux/kernel.h> 20 #include <linux/errno.h> 21 #include <linux/init.h> 22 #include <linux/slab.h> 23 #include <linux/tty.h> 24 #include <linux/tty_driver.h> 25 #include <linux/tty_flip.h> 26 #include <linux/module.h> 27 #include <linux/spinlock.h> 28 #include <linux/usb.h> 29 #include <linux/usb/serial.h> 30 31 32 /* Version Information */ 33 #define DRIVER_VERSION "v0.10" 34 #define DRIVER_DESC "SPCP8x5 USB to serial adaptor driver" 35 36 #define SPCP8x5_007_VID 0x04FC 37 #define SPCP8x5_007_PID 0x0201 38 #define SPCP8x5_008_VID 0x04fc 39 #define SPCP8x5_008_PID 0x0235 40 #define SPCP8x5_PHILIPS_VID 0x0471 41 #define SPCP8x5_PHILIPS_PID 0x081e 42 #define SPCP8x5_INTERMATIC_VID 0x04FC 43 #define SPCP8x5_INTERMATIC_PID 0x0204 44 #define SPCP8x5_835_VID 0x04fc 45 #define SPCP8x5_835_PID 0x0231 46 47 static const struct usb_device_id id_table[] = { 48 { USB_DEVICE(SPCP8x5_PHILIPS_VID , SPCP8x5_PHILIPS_PID)}, 49 { USB_DEVICE(SPCP8x5_INTERMATIC_VID, SPCP8x5_INTERMATIC_PID)}, 50 { USB_DEVICE(SPCP8x5_835_VID, SPCP8x5_835_PID)}, 51 { USB_DEVICE(SPCP8x5_008_VID, SPCP8x5_008_PID)}, 52 { USB_DEVICE(SPCP8x5_007_VID, SPCP8x5_007_PID)}, 53 { } /* Terminating entry */ 54 }; 55 MODULE_DEVICE_TABLE(usb, id_table); 56 57 struct spcp8x5_usb_ctrl_arg { 58 u8 type; 59 u8 cmd; 60 u8 cmd_type; 61 u16 value; 62 u16 index; 63 u16 length; 64 }; 65 66 67 /* spcp8x5 spec register define */ 68 #define MCR_CONTROL_LINE_RTS 0x02 69 #define MCR_CONTROL_LINE_DTR 0x01 70 #define MCR_DTR 0x01 71 #define MCR_RTS 0x02 72 73 #define MSR_STATUS_LINE_DCD 0x80 74 #define MSR_STATUS_LINE_RI 0x40 75 #define MSR_STATUS_LINE_DSR 0x20 76 #define MSR_STATUS_LINE_CTS 0x10 77 78 /* verdor command here , we should define myself */ 79 #define SET_DEFAULT 0x40 80 #define SET_DEFAULT_TYPE 0x20 81 82 #define SET_UART_FORMAT 0x40 83 #define SET_UART_FORMAT_TYPE 0x21 84 #define SET_UART_FORMAT_SIZE_5 0x00 85 #define SET_UART_FORMAT_SIZE_6 0x01 86 #define SET_UART_FORMAT_SIZE_7 0x02 87 #define SET_UART_FORMAT_SIZE_8 0x03 88 #define SET_UART_FORMAT_STOP_1 0x00 89 #define SET_UART_FORMAT_STOP_2 0x04 90 #define SET_UART_FORMAT_PAR_NONE 0x00 91 #define SET_UART_FORMAT_PAR_ODD 0x10 92 #define SET_UART_FORMAT_PAR_EVEN 0x30 93 #define SET_UART_FORMAT_PAR_MASK 0xD0 94 #define SET_UART_FORMAT_PAR_SPACE 0x90 95 96 #define GET_UART_STATUS_TYPE 0xc0 97 #define GET_UART_STATUS 0x22 98 #define GET_UART_STATUS_MSR 0x06 99 100 #define SET_UART_STATUS 0x40 101 #define SET_UART_STATUS_TYPE 0x23 102 #define SET_UART_STATUS_MCR 0x0004 103 #define SET_UART_STATUS_MCR_DTR 0x01 104 #define SET_UART_STATUS_MCR_RTS 0x02 105 #define SET_UART_STATUS_MCR_LOOP 0x10 106 107 #define SET_WORKING_MODE 0x40 108 #define SET_WORKING_MODE_TYPE 0x24 109 #define SET_WORKING_MODE_U2C 0x00 110 #define SET_WORKING_MODE_RS485 0x01 111 #define SET_WORKING_MODE_PDMA 0x02 112 #define SET_WORKING_MODE_SPP 0x03 113 114 #define SET_FLOWCTL_CHAR 0x40 115 #define SET_FLOWCTL_CHAR_TYPE 0x25 116 117 #define GET_VERSION 0xc0 118 #define GET_VERSION_TYPE 0x26 119 120 #define SET_REGISTER 0x40 121 #define SET_REGISTER_TYPE 0x27 122 123 #define GET_REGISTER 0xc0 124 #define GET_REGISTER_TYPE 0x28 125 126 #define SET_RAM 0x40 127 #define SET_RAM_TYPE 0x31 128 129 #define GET_RAM 0xc0 130 #define GET_RAM_TYPE 0x32 131 132 /* how come ??? */ 133 #define UART_STATE 0x08 134 #define UART_STATE_TRANSIENT_MASK 0x75 135 #define UART_DCD 0x01 136 #define UART_DSR 0x02 137 #define UART_BREAK_ERROR 0x04 138 #define UART_RING 0x08 139 #define UART_FRAME_ERROR 0x10 140 #define UART_PARITY_ERROR 0x20 141 #define UART_OVERRUN_ERROR 0x40 142 #define UART_CTS 0x80 143 144 enum spcp8x5_type { 145 SPCP825_007_TYPE, 146 SPCP825_008_TYPE, 147 SPCP825_PHILIP_TYPE, 148 SPCP825_INTERMATIC_TYPE, 149 SPCP835_TYPE, 150 }; 151 152 struct spcp8x5_private { 153 spinlock_t lock; 154 enum spcp8x5_type type; 155 wait_queue_head_t delta_msr_wait; 156 u8 line_control; 157 u8 line_status; 158 }; 159 160 /* desc : when device plug in,this function would be called. 161 * thanks to usb_serial subsystem,then do almost every things for us. And what 162 * we should do just alloc the buffer */ 163 static int spcp8x5_startup(struct usb_serial *serial) 164 { 165 struct spcp8x5_private *priv; 166 int i; 167 enum spcp8x5_type type = SPCP825_007_TYPE; 168 u16 product = le16_to_cpu(serial->dev->descriptor.idProduct); 169 170 if (product == 0x0201) 171 type = SPCP825_007_TYPE; 172 else if (product == 0x0231) 173 type = SPCP835_TYPE; 174 else if (product == 0x0235) 175 type = SPCP825_008_TYPE; 176 else if (product == 0x0204) 177 type = SPCP825_INTERMATIC_TYPE; 178 else if (product == 0x0471 && 179 serial->dev->descriptor.idVendor == cpu_to_le16(0x081e)) 180 type = SPCP825_PHILIP_TYPE; 181 dev_dbg(&serial->dev->dev, "device type = %d\n", (int)type); 182 183 for (i = 0; i < serial->num_ports; ++i) { 184 priv = kzalloc(sizeof(struct spcp8x5_private), GFP_KERNEL); 185 if (!priv) 186 goto cleanup; 187 188 spin_lock_init(&priv->lock); 189 init_waitqueue_head(&priv->delta_msr_wait); 190 priv->type = type; 191 usb_set_serial_port_data(serial->port[i] , priv); 192 } 193 194 return 0; 195 cleanup: 196 for (--i; i >= 0; --i) { 197 priv = usb_get_serial_port_data(serial->port[i]); 198 kfree(priv); 199 usb_set_serial_port_data(serial->port[i] , NULL); 200 } 201 return -ENOMEM; 202 } 203 204 /* call when the device plug out. free all the memory alloced by probe */ 205 static void spcp8x5_release(struct usb_serial *serial) 206 { 207 int i; 208 209 for (i = 0; i < serial->num_ports; i++) 210 kfree(usb_get_serial_port_data(serial->port[i])); 211 } 212 213 /* set the modem control line of the device. 214 * NOTE spcp825-007 not supported this */ 215 static int spcp8x5_set_ctrlLine(struct usb_device *dev, u8 value, 216 enum spcp8x5_type type) 217 { 218 int retval; 219 u8 mcr = 0 ; 220 221 if (type == SPCP825_007_TYPE) 222 return -EPERM; 223 224 mcr = (unsigned short)value; 225 retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 226 SET_UART_STATUS_TYPE, SET_UART_STATUS, 227 mcr, 0x04, NULL, 0, 100); 228 if (retval != 0) 229 dev_dbg(&dev->dev, "usb_control_msg return %#x\n", retval); 230 return retval; 231 } 232 233 /* get the modem status register of the device 234 * NOTE spcp825-007 not supported this */ 235 static int spcp8x5_get_msr(struct usb_device *dev, u8 *status, 236 enum spcp8x5_type type) 237 { 238 u8 *status_buffer; 239 int ret; 240 241 /* I return Permited not support here but seem inval device 242 * is more fix */ 243 if (type == SPCP825_007_TYPE) 244 return -EPERM; 245 if (status == NULL) 246 return -EINVAL; 247 248 status_buffer = kmalloc(1, GFP_KERNEL); 249 if (!status_buffer) 250 return -ENOMEM; 251 status_buffer[0] = status[0]; 252 253 ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 254 GET_UART_STATUS, GET_UART_STATUS_TYPE, 255 0, GET_UART_STATUS_MSR, status_buffer, 1, 100); 256 if (ret < 0) 257 dev_dbg(&dev->dev, "Get MSR = 0x%p failed (error = %d)", 258 status_buffer, ret); 259 260 dev_dbg(&dev->dev, "0xc0:0x22:0:6 %d - 0x%p ", ret, status_buffer); 261 status[0] = status_buffer[0]; 262 kfree(status_buffer); 263 264 return ret; 265 } 266 267 /* select the work mode. 268 * NOTE this function not supported by spcp825-007 */ 269 static void spcp8x5_set_workMode(struct usb_device *dev, u16 value, 270 u16 index, enum spcp8x5_type type) 271 { 272 int ret; 273 274 /* I return Permited not support here but seem inval device 275 * is more fix */ 276 if (type == SPCP825_007_TYPE) 277 return; 278 279 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 280 SET_WORKING_MODE_TYPE, SET_WORKING_MODE, 281 value, index, NULL, 0, 100); 282 dev_dbg(&dev->dev, "value = %#x , index = %#x\n", value, index); 283 if (ret < 0) 284 dev_dbg(&dev->dev, 285 "RTSCTS usb_control_msg(enable flowctrl) = %d\n", ret); 286 } 287 288 static int spcp8x5_carrier_raised(struct usb_serial_port *port) 289 { 290 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 291 if (priv->line_status & MSR_STATUS_LINE_DCD) 292 return 1; 293 return 0; 294 } 295 296 static void spcp8x5_dtr_rts(struct usb_serial_port *port, int on) 297 { 298 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 299 unsigned long flags; 300 u8 control; 301 302 spin_lock_irqsave(&priv->lock, flags); 303 if (on) 304 priv->line_control = MCR_CONTROL_LINE_DTR 305 | MCR_CONTROL_LINE_RTS; 306 else 307 priv->line_control &= ~ (MCR_CONTROL_LINE_DTR 308 | MCR_CONTROL_LINE_RTS); 309 control = priv->line_control; 310 spin_unlock_irqrestore(&priv->lock, flags); 311 spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type); 312 } 313 314 static void spcp8x5_init_termios(struct tty_struct *tty) 315 { 316 /* for the 1st time call this function */ 317 tty->termios = tty_std_termios; 318 tty->termios.c_cflag = B115200 | CS8 | CREAD | HUPCL | CLOCAL; 319 tty->termios.c_ispeed = 115200; 320 tty->termios.c_ospeed = 115200; 321 } 322 323 /* set the serial param for transfer. we should check if we really need to 324 * transfer. if we set flow control we should do this too. */ 325 static void spcp8x5_set_termios(struct tty_struct *tty, 326 struct usb_serial_port *port, struct ktermios *old_termios) 327 { 328 struct usb_serial *serial = port->serial; 329 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 330 unsigned long flags; 331 unsigned int cflag = tty->termios.c_cflag; 332 unsigned int old_cflag = old_termios->c_cflag; 333 unsigned short uartdata; 334 unsigned char buf[2] = {0, 0}; 335 int baud; 336 int i; 337 u8 control; 338 339 340 /* check that they really want us to change something */ 341 if (!tty_termios_hw_change(&tty->termios, old_termios)) 342 return; 343 344 /* set DTR/RTS active */ 345 spin_lock_irqsave(&priv->lock, flags); 346 control = priv->line_control; 347 if ((old_cflag & CBAUD) == B0) { 348 priv->line_control |= MCR_DTR; 349 if (!(old_cflag & CRTSCTS)) 350 priv->line_control |= MCR_RTS; 351 } 352 if (control != priv->line_control) { 353 control = priv->line_control; 354 spin_unlock_irqrestore(&priv->lock, flags); 355 spcp8x5_set_ctrlLine(serial->dev, control , priv->type); 356 } else { 357 spin_unlock_irqrestore(&priv->lock, flags); 358 } 359 360 /* Set Baud Rate */ 361 baud = tty_get_baud_rate(tty); 362 switch (baud) { 363 case 300: buf[0] = 0x00; break; 364 case 600: buf[0] = 0x01; break; 365 case 1200: buf[0] = 0x02; break; 366 case 2400: buf[0] = 0x03; break; 367 case 4800: buf[0] = 0x04; break; 368 case 9600: buf[0] = 0x05; break; 369 case 19200: buf[0] = 0x07; break; 370 case 38400: buf[0] = 0x09; break; 371 case 57600: buf[0] = 0x0a; break; 372 case 115200: buf[0] = 0x0b; break; 373 case 230400: buf[0] = 0x0c; break; 374 case 460800: buf[0] = 0x0d; break; 375 case 921600: buf[0] = 0x0e; break; 376 /* case 1200000: buf[0] = 0x0f; break; */ 377 /* case 2400000: buf[0] = 0x10; break; */ 378 case 3000000: buf[0] = 0x11; break; 379 /* case 6000000: buf[0] = 0x12; break; */ 380 case 0: 381 case 1000000: 382 buf[0] = 0x0b; break; 383 default: 384 dev_err(&port->dev, "spcp825 driver does not support the " 385 "baudrate requested, using default of 9600.\n"); 386 } 387 388 /* Set Data Length : 00:5bit, 01:6bit, 10:7bit, 11:8bit */ 389 if (cflag & CSIZE) { 390 switch (cflag & CSIZE) { 391 case CS5: 392 buf[1] |= SET_UART_FORMAT_SIZE_5; 393 break; 394 case CS6: 395 buf[1] |= SET_UART_FORMAT_SIZE_6; 396 break; 397 case CS7: 398 buf[1] |= SET_UART_FORMAT_SIZE_7; 399 break; 400 default: 401 case CS8: 402 buf[1] |= SET_UART_FORMAT_SIZE_8; 403 break; 404 } 405 } 406 407 /* Set Stop bit2 : 0:1bit 1:2bit */ 408 buf[1] |= (cflag & CSTOPB) ? SET_UART_FORMAT_STOP_2 : 409 SET_UART_FORMAT_STOP_1; 410 411 /* Set Parity bit3-4 01:Odd 11:Even */ 412 if (cflag & PARENB) { 413 buf[1] |= (cflag & PARODD) ? 414 SET_UART_FORMAT_PAR_ODD : SET_UART_FORMAT_PAR_EVEN ; 415 } else 416 buf[1] |= SET_UART_FORMAT_PAR_NONE; 417 418 uartdata = buf[0] | buf[1]<<8; 419 420 i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 421 SET_UART_FORMAT_TYPE, SET_UART_FORMAT, 422 uartdata, 0, NULL, 0, 100); 423 if (i < 0) 424 dev_err(&port->dev, "Set UART format %#x failed (error = %d)\n", 425 uartdata, i); 426 dev_dbg(&port->dev, "0x21:0x40:0:0 %d\n", i); 427 428 if (cflag & CRTSCTS) { 429 /* enable hardware flow control */ 430 spcp8x5_set_workMode(serial->dev, 0x000a, 431 SET_WORKING_MODE_U2C, priv->type); 432 } 433 } 434 435 /* open the serial port. do some usb system call. set termios and get the line 436 * status of the device. */ 437 static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port) 438 { 439 struct ktermios tmp_termios; 440 struct usb_serial *serial = port->serial; 441 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 442 int ret; 443 unsigned long flags; 444 u8 status = 0x30; 445 /* status 0x30 means DSR and CTS = 1 other CDC RI and delta = 0 */ 446 447 usb_clear_halt(serial->dev, port->write_urb->pipe); 448 usb_clear_halt(serial->dev, port->read_urb->pipe); 449 450 ret = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 451 0x09, 0x00, 452 0x01, 0x00, NULL, 0x00, 100); 453 if (ret) 454 return ret; 455 456 spcp8x5_set_ctrlLine(serial->dev, priv->line_control , priv->type); 457 458 /* Setup termios */ 459 if (tty) 460 spcp8x5_set_termios(tty, port, &tmp_termios); 461 462 spcp8x5_get_msr(serial->dev, &status, priv->type); 463 464 /* may be we should update uart status here but now we did not do */ 465 spin_lock_irqsave(&priv->lock, flags); 466 priv->line_status = status & 0xf0 ; 467 spin_unlock_irqrestore(&priv->lock, flags); 468 469 port->port.drain_delay = 256; 470 471 return usb_serial_generic_open(tty, port); 472 } 473 474 static void spcp8x5_process_read_urb(struct urb *urb) 475 { 476 struct usb_serial_port *port = urb->context; 477 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 478 struct tty_struct *tty; 479 unsigned char *data = urb->transfer_buffer; 480 unsigned long flags; 481 u8 status; 482 char tty_flag; 483 484 /* get tty_flag from status */ 485 tty_flag = TTY_NORMAL; 486 487 spin_lock_irqsave(&priv->lock, flags); 488 status = priv->line_status; 489 priv->line_status &= ~UART_STATE_TRANSIENT_MASK; 490 spin_unlock_irqrestore(&priv->lock, flags); 491 /* wake up the wait for termios */ 492 wake_up_interruptible(&priv->delta_msr_wait); 493 494 if (!urb->actual_length) 495 return; 496 497 tty = tty_port_tty_get(&port->port); 498 if (!tty) 499 return; 500 501 if (status & UART_STATE_TRANSIENT_MASK) { 502 /* break takes precedence over parity, which takes precedence 503 * over framing errors */ 504 if (status & UART_BREAK_ERROR) 505 tty_flag = TTY_BREAK; 506 else if (status & UART_PARITY_ERROR) 507 tty_flag = TTY_PARITY; 508 else if (status & UART_FRAME_ERROR) 509 tty_flag = TTY_FRAME; 510 dev_dbg(&port->dev, "tty_flag = %d\n", tty_flag); 511 512 /* overrun is special, not associated with a char */ 513 if (status & UART_OVERRUN_ERROR) 514 tty_insert_flip_char(tty, 0, TTY_OVERRUN); 515 516 if (status & UART_DCD) 517 usb_serial_handle_dcd_change(port, tty, 518 priv->line_status & MSR_STATUS_LINE_DCD); 519 } 520 521 tty_insert_flip_string_fixed_flag(tty, data, tty_flag, 522 urb->actual_length); 523 tty_flip_buffer_push(tty); 524 tty_kref_put(tty); 525 } 526 527 static int spcp8x5_wait_modem_info(struct usb_serial_port *port, 528 unsigned int arg) 529 { 530 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 531 unsigned long flags; 532 unsigned int prevstatus; 533 unsigned int status; 534 unsigned int changed; 535 536 spin_lock_irqsave(&priv->lock, flags); 537 prevstatus = priv->line_status; 538 spin_unlock_irqrestore(&priv->lock, flags); 539 540 while (1) { 541 /* wake up in bulk read */ 542 interruptible_sleep_on(&priv->delta_msr_wait); 543 544 /* see if a signal did it */ 545 if (signal_pending(current)) 546 return -ERESTARTSYS; 547 548 spin_lock_irqsave(&priv->lock, flags); 549 status = priv->line_status; 550 spin_unlock_irqrestore(&priv->lock, flags); 551 552 changed = prevstatus^status; 553 554 if (((arg & TIOCM_RNG) && (changed & MSR_STATUS_LINE_RI)) || 555 ((arg & TIOCM_DSR) && (changed & MSR_STATUS_LINE_DSR)) || 556 ((arg & TIOCM_CD) && (changed & MSR_STATUS_LINE_DCD)) || 557 ((arg & TIOCM_CTS) && (changed & MSR_STATUS_LINE_CTS))) 558 return 0; 559 560 prevstatus = status; 561 } 562 /* NOTREACHED */ 563 return 0; 564 } 565 566 static int spcp8x5_ioctl(struct tty_struct *tty, 567 unsigned int cmd, unsigned long arg) 568 { 569 struct usb_serial_port *port = tty->driver_data; 570 571 dev_dbg(&port->dev, "%s (%d) cmd = 0x%04x\n", __func__, 572 port->number, cmd); 573 574 switch (cmd) { 575 case TIOCMIWAIT: 576 dev_dbg(&port->dev, "%s (%d) TIOCMIWAIT\n", __func__, 577 port->number); 578 return spcp8x5_wait_modem_info(port, arg); 579 580 default: 581 dev_dbg(&port->dev, "%s not supported = 0x%04x", __func__, 582 cmd); 583 break; 584 } 585 586 return -ENOIOCTLCMD; 587 } 588 589 static int spcp8x5_tiocmset(struct tty_struct *tty, 590 unsigned int set, unsigned int clear) 591 { 592 struct usb_serial_port *port = tty->driver_data; 593 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 594 unsigned long flags; 595 u8 control; 596 597 spin_lock_irqsave(&priv->lock, flags); 598 if (set & TIOCM_RTS) 599 priv->line_control |= MCR_RTS; 600 if (set & TIOCM_DTR) 601 priv->line_control |= MCR_DTR; 602 if (clear & TIOCM_RTS) 603 priv->line_control &= ~MCR_RTS; 604 if (clear & TIOCM_DTR) 605 priv->line_control &= ~MCR_DTR; 606 control = priv->line_control; 607 spin_unlock_irqrestore(&priv->lock, flags); 608 609 return spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type); 610 } 611 612 static int spcp8x5_tiocmget(struct tty_struct *tty) 613 { 614 struct usb_serial_port *port = tty->driver_data; 615 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 616 unsigned long flags; 617 unsigned int mcr; 618 unsigned int status; 619 unsigned int result; 620 621 spin_lock_irqsave(&priv->lock, flags); 622 mcr = priv->line_control; 623 status = priv->line_status; 624 spin_unlock_irqrestore(&priv->lock, flags); 625 626 result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0) 627 | ((mcr & MCR_RTS) ? TIOCM_RTS : 0) 628 | ((status & MSR_STATUS_LINE_CTS) ? TIOCM_CTS : 0) 629 | ((status & MSR_STATUS_LINE_DSR) ? TIOCM_DSR : 0) 630 | ((status & MSR_STATUS_LINE_RI) ? TIOCM_RI : 0) 631 | ((status & MSR_STATUS_LINE_DCD) ? TIOCM_CD : 0); 632 633 return result; 634 } 635 636 /* All of the device info needed for the spcp8x5 SIO serial converter */ 637 static struct usb_serial_driver spcp8x5_device = { 638 .driver = { 639 .owner = THIS_MODULE, 640 .name = "SPCP8x5", 641 }, 642 .id_table = id_table, 643 .num_ports = 1, 644 .open = spcp8x5_open, 645 .dtr_rts = spcp8x5_dtr_rts, 646 .carrier_raised = spcp8x5_carrier_raised, 647 .set_termios = spcp8x5_set_termios, 648 .init_termios = spcp8x5_init_termios, 649 .ioctl = spcp8x5_ioctl, 650 .tiocmget = spcp8x5_tiocmget, 651 .tiocmset = spcp8x5_tiocmset, 652 .attach = spcp8x5_startup, 653 .release = spcp8x5_release, 654 .process_read_urb = spcp8x5_process_read_urb, 655 }; 656 657 static struct usb_serial_driver * const serial_drivers[] = { 658 &spcp8x5_device, NULL 659 }; 660 661 module_usb_serial_driver(serial_drivers, id_table); 662 663 MODULE_DESCRIPTION(DRIVER_DESC); 664 MODULE_VERSION(DRIVER_VERSION); 665 MODULE_LICENSE("GPL"); 666