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 static bool debug; 37 38 #define SPCP8x5_007_VID 0x04FC 39 #define SPCP8x5_007_PID 0x0201 40 #define SPCP8x5_008_VID 0x04fc 41 #define SPCP8x5_008_PID 0x0235 42 #define SPCP8x5_PHILIPS_VID 0x0471 43 #define SPCP8x5_PHILIPS_PID 0x081e 44 #define SPCP8x5_INTERMATIC_VID 0x04FC 45 #define SPCP8x5_INTERMATIC_PID 0x0204 46 #define SPCP8x5_835_VID 0x04fc 47 #define SPCP8x5_835_PID 0x0231 48 49 static const struct usb_device_id id_table[] = { 50 { USB_DEVICE(SPCP8x5_PHILIPS_VID , SPCP8x5_PHILIPS_PID)}, 51 { USB_DEVICE(SPCP8x5_INTERMATIC_VID, SPCP8x5_INTERMATIC_PID)}, 52 { USB_DEVICE(SPCP8x5_835_VID, SPCP8x5_835_PID)}, 53 { USB_DEVICE(SPCP8x5_008_VID, SPCP8x5_008_PID)}, 54 { USB_DEVICE(SPCP8x5_007_VID, SPCP8x5_007_PID)}, 55 { } /* Terminating entry */ 56 }; 57 MODULE_DEVICE_TABLE(usb, id_table); 58 59 struct spcp8x5_usb_ctrl_arg { 60 u8 type; 61 u8 cmd; 62 u8 cmd_type; 63 u16 value; 64 u16 index; 65 u16 length; 66 }; 67 68 69 /* spcp8x5 spec register define */ 70 #define MCR_CONTROL_LINE_RTS 0x02 71 #define MCR_CONTROL_LINE_DTR 0x01 72 #define MCR_DTR 0x01 73 #define MCR_RTS 0x02 74 75 #define MSR_STATUS_LINE_DCD 0x80 76 #define MSR_STATUS_LINE_RI 0x40 77 #define MSR_STATUS_LINE_DSR 0x20 78 #define MSR_STATUS_LINE_CTS 0x10 79 80 /* verdor command here , we should define myself */ 81 #define SET_DEFAULT 0x40 82 #define SET_DEFAULT_TYPE 0x20 83 84 #define SET_UART_FORMAT 0x40 85 #define SET_UART_FORMAT_TYPE 0x21 86 #define SET_UART_FORMAT_SIZE_5 0x00 87 #define SET_UART_FORMAT_SIZE_6 0x01 88 #define SET_UART_FORMAT_SIZE_7 0x02 89 #define SET_UART_FORMAT_SIZE_8 0x03 90 #define SET_UART_FORMAT_STOP_1 0x00 91 #define SET_UART_FORMAT_STOP_2 0x04 92 #define SET_UART_FORMAT_PAR_NONE 0x00 93 #define SET_UART_FORMAT_PAR_ODD 0x10 94 #define SET_UART_FORMAT_PAR_EVEN 0x30 95 #define SET_UART_FORMAT_PAR_MASK 0xD0 96 #define SET_UART_FORMAT_PAR_SPACE 0x90 97 98 #define GET_UART_STATUS_TYPE 0xc0 99 #define GET_UART_STATUS 0x22 100 #define GET_UART_STATUS_MSR 0x06 101 102 #define SET_UART_STATUS 0x40 103 #define SET_UART_STATUS_TYPE 0x23 104 #define SET_UART_STATUS_MCR 0x0004 105 #define SET_UART_STATUS_MCR_DTR 0x01 106 #define SET_UART_STATUS_MCR_RTS 0x02 107 #define SET_UART_STATUS_MCR_LOOP 0x10 108 109 #define SET_WORKING_MODE 0x40 110 #define SET_WORKING_MODE_TYPE 0x24 111 #define SET_WORKING_MODE_U2C 0x00 112 #define SET_WORKING_MODE_RS485 0x01 113 #define SET_WORKING_MODE_PDMA 0x02 114 #define SET_WORKING_MODE_SPP 0x03 115 116 #define SET_FLOWCTL_CHAR 0x40 117 #define SET_FLOWCTL_CHAR_TYPE 0x25 118 119 #define GET_VERSION 0xc0 120 #define GET_VERSION_TYPE 0x26 121 122 #define SET_REGISTER 0x40 123 #define SET_REGISTER_TYPE 0x27 124 125 #define GET_REGISTER 0xc0 126 #define GET_REGISTER_TYPE 0x28 127 128 #define SET_RAM 0x40 129 #define SET_RAM_TYPE 0x31 130 131 #define GET_RAM 0xc0 132 #define GET_RAM_TYPE 0x32 133 134 /* how come ??? */ 135 #define UART_STATE 0x08 136 #define UART_STATE_TRANSIENT_MASK 0x75 137 #define UART_DCD 0x01 138 #define UART_DSR 0x02 139 #define UART_BREAK_ERROR 0x04 140 #define UART_RING 0x08 141 #define UART_FRAME_ERROR 0x10 142 #define UART_PARITY_ERROR 0x20 143 #define UART_OVERRUN_ERROR 0x40 144 #define UART_CTS 0x80 145 146 enum spcp8x5_type { 147 SPCP825_007_TYPE, 148 SPCP825_008_TYPE, 149 SPCP825_PHILIP_TYPE, 150 SPCP825_INTERMATIC_TYPE, 151 SPCP835_TYPE, 152 }; 153 154 struct spcp8x5_private { 155 spinlock_t lock; 156 enum spcp8x5_type type; 157 wait_queue_head_t delta_msr_wait; 158 u8 line_control; 159 u8 line_status; 160 }; 161 162 /* desc : when device plug in,this function would be called. 163 * thanks to usb_serial subsystem,then do almost every things for us. And what 164 * we should do just alloc the buffer */ 165 static int spcp8x5_startup(struct usb_serial *serial) 166 { 167 struct spcp8x5_private *priv; 168 int i; 169 enum spcp8x5_type type = SPCP825_007_TYPE; 170 u16 product = le16_to_cpu(serial->dev->descriptor.idProduct); 171 172 if (product == 0x0201) 173 type = SPCP825_007_TYPE; 174 else if (product == 0x0231) 175 type = SPCP835_TYPE; 176 else if (product == 0x0235) 177 type = SPCP825_008_TYPE; 178 else if (product == 0x0204) 179 type = SPCP825_INTERMATIC_TYPE; 180 else if (product == 0x0471 && 181 serial->dev->descriptor.idVendor == cpu_to_le16(0x081e)) 182 type = SPCP825_PHILIP_TYPE; 183 dev_dbg(&serial->dev->dev, "device type = %d\n", (int)type); 184 185 for (i = 0; i < serial->num_ports; ++i) { 186 priv = kzalloc(sizeof(struct spcp8x5_private), GFP_KERNEL); 187 if (!priv) 188 goto cleanup; 189 190 spin_lock_init(&priv->lock); 191 init_waitqueue_head(&priv->delta_msr_wait); 192 priv->type = type; 193 usb_set_serial_port_data(serial->port[i] , priv); 194 } 195 196 return 0; 197 cleanup: 198 for (--i; i >= 0; --i) { 199 priv = usb_get_serial_port_data(serial->port[i]); 200 kfree(priv); 201 usb_set_serial_port_data(serial->port[i] , NULL); 202 } 203 return -ENOMEM; 204 } 205 206 /* call when the device plug out. free all the memory alloced by probe */ 207 static void spcp8x5_release(struct usb_serial *serial) 208 { 209 int i; 210 211 for (i = 0; i < serial->num_ports; i++) 212 kfree(usb_get_serial_port_data(serial->port[i])); 213 } 214 215 /* set the modem control line of the device. 216 * NOTE spcp825-007 not supported this */ 217 static int spcp8x5_set_ctrlLine(struct usb_device *dev, u8 value, 218 enum spcp8x5_type type) 219 { 220 int retval; 221 u8 mcr = 0 ; 222 223 if (type == SPCP825_007_TYPE) 224 return -EPERM; 225 226 mcr = (unsigned short)value; 227 retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 228 SET_UART_STATUS_TYPE, SET_UART_STATUS, 229 mcr, 0x04, NULL, 0, 100); 230 if (retval != 0) 231 dev_dbg(&dev->dev, "usb_control_msg return %#x\n", retval); 232 return retval; 233 } 234 235 /* get the modem status register of the device 236 * NOTE spcp825-007 not supported this */ 237 static int spcp8x5_get_msr(struct usb_device *dev, u8 *status, 238 enum spcp8x5_type type) 239 { 240 u8 *status_buffer; 241 int ret; 242 243 /* I return Permited not support here but seem inval device 244 * is more fix */ 245 if (type == SPCP825_007_TYPE) 246 return -EPERM; 247 if (status == NULL) 248 return -EINVAL; 249 250 status_buffer = kmalloc(1, GFP_KERNEL); 251 if (!status_buffer) 252 return -ENOMEM; 253 status_buffer[0] = status[0]; 254 255 ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 256 GET_UART_STATUS, GET_UART_STATUS_TYPE, 257 0, GET_UART_STATUS_MSR, status_buffer, 1, 100); 258 if (ret < 0) 259 dev_dbg(&dev->dev, "Get MSR = 0x%p failed (error = %d)", 260 status_buffer, ret); 261 262 dev_dbg(&dev->dev, "0xc0:0x22:0:6 %d - 0x%p ", ret, status_buffer); 263 status[0] = status_buffer[0]; 264 kfree(status_buffer); 265 266 return ret; 267 } 268 269 /* select the work mode. 270 * NOTE this function not supported by spcp825-007 */ 271 static void spcp8x5_set_workMode(struct usb_device *dev, u16 value, 272 u16 index, enum spcp8x5_type type) 273 { 274 int ret; 275 276 /* I return Permited not support here but seem inval device 277 * is more fix */ 278 if (type == SPCP825_007_TYPE) 279 return; 280 281 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 282 SET_WORKING_MODE_TYPE, SET_WORKING_MODE, 283 value, index, NULL, 0, 100); 284 dev_dbg(&dev->dev, "value = %#x , index = %#x\n", value, index); 285 if (ret < 0) 286 dev_dbg(&dev->dev, 287 "RTSCTS usb_control_msg(enable flowctrl) = %d\n", ret); 288 } 289 290 static int spcp8x5_carrier_raised(struct usb_serial_port *port) 291 { 292 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 293 if (priv->line_status & MSR_STATUS_LINE_DCD) 294 return 1; 295 return 0; 296 } 297 298 static void spcp8x5_dtr_rts(struct usb_serial_port *port, int on) 299 { 300 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 301 unsigned long flags; 302 u8 control; 303 304 spin_lock_irqsave(&priv->lock, flags); 305 if (on) 306 priv->line_control = MCR_CONTROL_LINE_DTR 307 | MCR_CONTROL_LINE_RTS; 308 else 309 priv->line_control &= ~ (MCR_CONTROL_LINE_DTR 310 | MCR_CONTROL_LINE_RTS); 311 control = priv->line_control; 312 spin_unlock_irqrestore(&priv->lock, flags); 313 spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type); 314 } 315 316 static void spcp8x5_init_termios(struct tty_struct *tty) 317 { 318 /* for the 1st time call this function */ 319 *(tty->termios) = tty_std_termios; 320 tty->termios->c_cflag = B115200 | CS8 | CREAD | HUPCL | CLOCAL; 321 tty->termios->c_ispeed = 115200; 322 tty->termios->c_ospeed = 115200; 323 } 324 325 /* set the serial param for transfer. we should check if we really need to 326 * transfer. if we set flow control we should do this too. */ 327 static void spcp8x5_set_termios(struct tty_struct *tty, 328 struct usb_serial_port *port, struct ktermios *old_termios) 329 { 330 struct usb_serial *serial = port->serial; 331 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 332 unsigned long flags; 333 unsigned int cflag = tty->termios->c_cflag; 334 unsigned int old_cflag = old_termios->c_cflag; 335 unsigned short uartdata; 336 unsigned char buf[2] = {0, 0}; 337 int baud; 338 int i; 339 u8 control; 340 341 342 /* check that they really want us to change something */ 343 if (!tty_termios_hw_change(tty->termios, old_termios)) 344 return; 345 346 /* set DTR/RTS active */ 347 spin_lock_irqsave(&priv->lock, flags); 348 control = priv->line_control; 349 if ((old_cflag & CBAUD) == B0) { 350 priv->line_control |= MCR_DTR; 351 if (!(old_cflag & CRTSCTS)) 352 priv->line_control |= MCR_RTS; 353 } 354 if (control != priv->line_control) { 355 control = priv->line_control; 356 spin_unlock_irqrestore(&priv->lock, flags); 357 spcp8x5_set_ctrlLine(serial->dev, control , priv->type); 358 } else { 359 spin_unlock_irqrestore(&priv->lock, flags); 360 } 361 362 /* Set Baud Rate */ 363 baud = tty_get_baud_rate(tty); 364 switch (baud) { 365 case 300: buf[0] = 0x00; break; 366 case 600: buf[0] = 0x01; break; 367 case 1200: buf[0] = 0x02; break; 368 case 2400: buf[0] = 0x03; break; 369 case 4800: buf[0] = 0x04; break; 370 case 9600: buf[0] = 0x05; break; 371 case 19200: buf[0] = 0x07; break; 372 case 38400: buf[0] = 0x09; break; 373 case 57600: buf[0] = 0x0a; break; 374 case 115200: buf[0] = 0x0b; break; 375 case 230400: buf[0] = 0x0c; break; 376 case 460800: buf[0] = 0x0d; break; 377 case 921600: buf[0] = 0x0e; break; 378 /* case 1200000: buf[0] = 0x0f; break; */ 379 /* case 2400000: buf[0] = 0x10; break; */ 380 case 3000000: buf[0] = 0x11; break; 381 /* case 6000000: buf[0] = 0x12; break; */ 382 case 0: 383 case 1000000: 384 buf[0] = 0x0b; break; 385 default: 386 dev_err(&port->dev, "spcp825 driver does not support the " 387 "baudrate requested, using default of 9600.\n"); 388 } 389 390 /* Set Data Length : 00:5bit, 01:6bit, 10:7bit, 11:8bit */ 391 if (cflag & CSIZE) { 392 switch (cflag & CSIZE) { 393 case CS5: 394 buf[1] |= SET_UART_FORMAT_SIZE_5; 395 break; 396 case CS6: 397 buf[1] |= SET_UART_FORMAT_SIZE_6; 398 break; 399 case CS7: 400 buf[1] |= SET_UART_FORMAT_SIZE_7; 401 break; 402 default: 403 case CS8: 404 buf[1] |= SET_UART_FORMAT_SIZE_8; 405 break; 406 } 407 } 408 409 /* Set Stop bit2 : 0:1bit 1:2bit */ 410 buf[1] |= (cflag & CSTOPB) ? SET_UART_FORMAT_STOP_2 : 411 SET_UART_FORMAT_STOP_1; 412 413 /* Set Parity bit3-4 01:Odd 11:Even */ 414 if (cflag & PARENB) { 415 buf[1] |= (cflag & PARODD) ? 416 SET_UART_FORMAT_PAR_ODD : SET_UART_FORMAT_PAR_EVEN ; 417 } else 418 buf[1] |= SET_UART_FORMAT_PAR_NONE; 419 420 uartdata = buf[0] | buf[1]<<8; 421 422 i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 423 SET_UART_FORMAT_TYPE, SET_UART_FORMAT, 424 uartdata, 0, NULL, 0, 100); 425 if (i < 0) 426 dev_err(&port->dev, "Set UART format %#x failed (error = %d)\n", 427 uartdata, i); 428 dev_dbg(&port->dev, "0x21:0x40:0:0 %d\n", i); 429 430 if (cflag & CRTSCTS) { 431 /* enable hardware flow control */ 432 spcp8x5_set_workMode(serial->dev, 0x000a, 433 SET_WORKING_MODE_U2C, priv->type); 434 } 435 } 436 437 /* open the serial port. do some usb system call. set termios and get the line 438 * status of the device. */ 439 static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port) 440 { 441 struct ktermios tmp_termios; 442 struct usb_serial *serial = port->serial; 443 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 444 int ret; 445 unsigned long flags; 446 u8 status = 0x30; 447 /* status 0x30 means DSR and CTS = 1 other CDC RI and delta = 0 */ 448 449 usb_clear_halt(serial->dev, port->write_urb->pipe); 450 usb_clear_halt(serial->dev, port->read_urb->pipe); 451 452 ret = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 453 0x09, 0x00, 454 0x01, 0x00, NULL, 0x00, 100); 455 if (ret) 456 return ret; 457 458 spcp8x5_set_ctrlLine(serial->dev, priv->line_control , priv->type); 459 460 /* Setup termios */ 461 if (tty) 462 spcp8x5_set_termios(tty, port, &tmp_termios); 463 464 spcp8x5_get_msr(serial->dev, &status, priv->type); 465 466 /* may be we should update uart status here but now we did not do */ 467 spin_lock_irqsave(&priv->lock, flags); 468 priv->line_status = status & 0xf0 ; 469 spin_unlock_irqrestore(&priv->lock, flags); 470 471 port->port.drain_delay = 256; 472 473 return usb_serial_generic_open(tty, port); 474 } 475 476 static void spcp8x5_process_read_urb(struct urb *urb) 477 { 478 struct usb_serial_port *port = urb->context; 479 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 480 struct tty_struct *tty; 481 unsigned char *data = urb->transfer_buffer; 482 unsigned long flags; 483 u8 status; 484 char tty_flag; 485 486 /* get tty_flag from status */ 487 tty_flag = TTY_NORMAL; 488 489 spin_lock_irqsave(&priv->lock, flags); 490 status = priv->line_status; 491 priv->line_status &= ~UART_STATE_TRANSIENT_MASK; 492 spin_unlock_irqrestore(&priv->lock, flags); 493 /* wake up the wait for termios */ 494 wake_up_interruptible(&priv->delta_msr_wait); 495 496 if (!urb->actual_length) 497 return; 498 499 tty = tty_port_tty_get(&port->port); 500 if (!tty) 501 return; 502 503 if (status & UART_STATE_TRANSIENT_MASK) { 504 /* break takes precedence over parity, which takes precedence 505 * over framing errors */ 506 if (status & UART_BREAK_ERROR) 507 tty_flag = TTY_BREAK; 508 else if (status & UART_PARITY_ERROR) 509 tty_flag = TTY_PARITY; 510 else if (status & UART_FRAME_ERROR) 511 tty_flag = TTY_FRAME; 512 dev_dbg(&port->dev, "tty_flag = %d\n", tty_flag); 513 514 /* overrun is special, not associated with a char */ 515 if (status & UART_OVERRUN_ERROR) 516 tty_insert_flip_char(tty, 0, TTY_OVERRUN); 517 518 if (status & UART_DCD) 519 usb_serial_handle_dcd_change(port, tty, 520 priv->line_status & MSR_STATUS_LINE_DCD); 521 } 522 523 tty_insert_flip_string_fixed_flag(tty, data, tty_flag, 524 urb->actual_length); 525 tty_flip_buffer_push(tty); 526 tty_kref_put(tty); 527 } 528 529 static int spcp8x5_wait_modem_info(struct usb_serial_port *port, 530 unsigned int arg) 531 { 532 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 533 unsigned long flags; 534 unsigned int prevstatus; 535 unsigned int status; 536 unsigned int changed; 537 538 spin_lock_irqsave(&priv->lock, flags); 539 prevstatus = priv->line_status; 540 spin_unlock_irqrestore(&priv->lock, flags); 541 542 while (1) { 543 /* wake up in bulk read */ 544 interruptible_sleep_on(&priv->delta_msr_wait); 545 546 /* see if a signal did it */ 547 if (signal_pending(current)) 548 return -ERESTARTSYS; 549 550 spin_lock_irqsave(&priv->lock, flags); 551 status = priv->line_status; 552 spin_unlock_irqrestore(&priv->lock, flags); 553 554 changed = prevstatus^status; 555 556 if (((arg & TIOCM_RNG) && (changed & MSR_STATUS_LINE_RI)) || 557 ((arg & TIOCM_DSR) && (changed & MSR_STATUS_LINE_DSR)) || 558 ((arg & TIOCM_CD) && (changed & MSR_STATUS_LINE_DCD)) || 559 ((arg & TIOCM_CTS) && (changed & MSR_STATUS_LINE_CTS))) 560 return 0; 561 562 prevstatus = status; 563 } 564 /* NOTREACHED */ 565 return 0; 566 } 567 568 static int spcp8x5_ioctl(struct tty_struct *tty, 569 unsigned int cmd, unsigned long arg) 570 { 571 struct usb_serial_port *port = tty->driver_data; 572 573 dev_dbg(&port->dev, "%s (%d) cmd = 0x%04x\n", __func__, 574 port->number, cmd); 575 576 switch (cmd) { 577 case TIOCMIWAIT: 578 dev_dbg(&port->dev, "%s (%d) TIOCMIWAIT\n", __func__, 579 port->number); 580 return spcp8x5_wait_modem_info(port, arg); 581 582 default: 583 dev_dbg(&port->dev, "%s not supported = 0x%04x", __func__, 584 cmd); 585 break; 586 } 587 588 return -ENOIOCTLCMD; 589 } 590 591 static int spcp8x5_tiocmset(struct tty_struct *tty, 592 unsigned int set, unsigned int clear) 593 { 594 struct usb_serial_port *port = tty->driver_data; 595 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 596 unsigned long flags; 597 u8 control; 598 599 spin_lock_irqsave(&priv->lock, flags); 600 if (set & TIOCM_RTS) 601 priv->line_control |= MCR_RTS; 602 if (set & TIOCM_DTR) 603 priv->line_control |= MCR_DTR; 604 if (clear & TIOCM_RTS) 605 priv->line_control &= ~MCR_RTS; 606 if (clear & TIOCM_DTR) 607 priv->line_control &= ~MCR_DTR; 608 control = priv->line_control; 609 spin_unlock_irqrestore(&priv->lock, flags); 610 611 return spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type); 612 } 613 614 static int spcp8x5_tiocmget(struct tty_struct *tty) 615 { 616 struct usb_serial_port *port = tty->driver_data; 617 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 618 unsigned long flags; 619 unsigned int mcr; 620 unsigned int status; 621 unsigned int result; 622 623 spin_lock_irqsave(&priv->lock, flags); 624 mcr = priv->line_control; 625 status = priv->line_status; 626 spin_unlock_irqrestore(&priv->lock, flags); 627 628 result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0) 629 | ((mcr & MCR_RTS) ? TIOCM_RTS : 0) 630 | ((status & MSR_STATUS_LINE_CTS) ? TIOCM_CTS : 0) 631 | ((status & MSR_STATUS_LINE_DSR) ? TIOCM_DSR : 0) 632 | ((status & MSR_STATUS_LINE_RI) ? TIOCM_RI : 0) 633 | ((status & MSR_STATUS_LINE_DCD) ? TIOCM_CD : 0); 634 635 return result; 636 } 637 638 /* All of the device info needed for the spcp8x5 SIO serial converter */ 639 static struct usb_serial_driver spcp8x5_device = { 640 .driver = { 641 .owner = THIS_MODULE, 642 .name = "SPCP8x5", 643 }, 644 .id_table = id_table, 645 .num_ports = 1, 646 .open = spcp8x5_open, 647 .dtr_rts = spcp8x5_dtr_rts, 648 .carrier_raised = spcp8x5_carrier_raised, 649 .set_termios = spcp8x5_set_termios, 650 .init_termios = spcp8x5_init_termios, 651 .ioctl = spcp8x5_ioctl, 652 .tiocmget = spcp8x5_tiocmget, 653 .tiocmset = spcp8x5_tiocmset, 654 .attach = spcp8x5_startup, 655 .release = spcp8x5_release, 656 .process_read_urb = spcp8x5_process_read_urb, 657 }; 658 659 static struct usb_serial_driver * const serial_drivers[] = { 660 &spcp8x5_device, NULL 661 }; 662 663 module_usb_serial_driver(serial_drivers, id_table); 664 665 MODULE_DESCRIPTION(DRIVER_DESC); 666 MODULE_VERSION(DRIVER_VERSION); 667 MODULE_LICENSE("GPL"); 668 669 module_param(debug, bool, S_IRUGO | S_IWUSR); 670 MODULE_PARM_DESC(debug, "Debug enabled or not"); 671