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 static struct usb_driver spcp8x5_driver = { 155 .name = "spcp8x5", 156 .id_table = id_table, 157 }; 158 159 160 struct spcp8x5_private { 161 spinlock_t lock; 162 enum spcp8x5_type type; 163 wait_queue_head_t delta_msr_wait; 164 u8 line_control; 165 u8 line_status; 166 }; 167 168 /* desc : when device plug in,this function would be called. 169 * thanks to usb_serial subsystem,then do almost every things for us. And what 170 * we should do just alloc the buffer */ 171 static int spcp8x5_startup(struct usb_serial *serial) 172 { 173 struct spcp8x5_private *priv; 174 int i; 175 enum spcp8x5_type type = SPCP825_007_TYPE; 176 u16 product = le16_to_cpu(serial->dev->descriptor.idProduct); 177 178 if (product == 0x0201) 179 type = SPCP825_007_TYPE; 180 else if (product == 0x0231) 181 type = SPCP835_TYPE; 182 else if (product == 0x0235) 183 type = SPCP825_008_TYPE; 184 else if (product == 0x0204) 185 type = SPCP825_INTERMATIC_TYPE; 186 else if (product == 0x0471 && 187 serial->dev->descriptor.idVendor == cpu_to_le16(0x081e)) 188 type = SPCP825_PHILIP_TYPE; 189 dev_dbg(&serial->dev->dev, "device type = %d\n", (int)type); 190 191 for (i = 0; i < serial->num_ports; ++i) { 192 priv = kzalloc(sizeof(struct spcp8x5_private), GFP_KERNEL); 193 if (!priv) 194 goto cleanup; 195 196 spin_lock_init(&priv->lock); 197 init_waitqueue_head(&priv->delta_msr_wait); 198 priv->type = type; 199 usb_set_serial_port_data(serial->port[i] , priv); 200 } 201 202 return 0; 203 cleanup: 204 for (--i; i >= 0; --i) { 205 priv = usb_get_serial_port_data(serial->port[i]); 206 kfree(priv); 207 usb_set_serial_port_data(serial->port[i] , NULL); 208 } 209 return -ENOMEM; 210 } 211 212 /* call when the device plug out. free all the memory alloced by probe */ 213 static void spcp8x5_release(struct usb_serial *serial) 214 { 215 int i; 216 217 for (i = 0; i < serial->num_ports; i++) 218 kfree(usb_get_serial_port_data(serial->port[i])); 219 } 220 221 /* set the modem control line of the device. 222 * NOTE spcp825-007 not supported this */ 223 static int spcp8x5_set_ctrlLine(struct usb_device *dev, u8 value, 224 enum spcp8x5_type type) 225 { 226 int retval; 227 u8 mcr = 0 ; 228 229 if (type == SPCP825_007_TYPE) 230 return -EPERM; 231 232 mcr = (unsigned short)value; 233 retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 234 SET_UART_STATUS_TYPE, SET_UART_STATUS, 235 mcr, 0x04, NULL, 0, 100); 236 if (retval != 0) 237 dev_dbg(&dev->dev, "usb_control_msg return %#x\n", retval); 238 return retval; 239 } 240 241 /* get the modem status register of the device 242 * NOTE spcp825-007 not supported this */ 243 static int spcp8x5_get_msr(struct usb_device *dev, u8 *status, 244 enum spcp8x5_type type) 245 { 246 u8 *status_buffer; 247 int ret; 248 249 /* I return Permited not support here but seem inval device 250 * is more fix */ 251 if (type == SPCP825_007_TYPE) 252 return -EPERM; 253 if (status == NULL) 254 return -EINVAL; 255 256 status_buffer = kmalloc(1, GFP_KERNEL); 257 if (!status_buffer) 258 return -ENOMEM; 259 status_buffer[0] = status[0]; 260 261 ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 262 GET_UART_STATUS, GET_UART_STATUS_TYPE, 263 0, GET_UART_STATUS_MSR, status_buffer, 1, 100); 264 if (ret < 0) 265 dev_dbg(&dev->dev, "Get MSR = 0x%p failed (error = %d)", 266 status_buffer, ret); 267 268 dev_dbg(&dev->dev, "0xc0:0x22:0:6 %d - 0x%p ", ret, status_buffer); 269 status[0] = status_buffer[0]; 270 kfree(status_buffer); 271 272 return ret; 273 } 274 275 /* select the work mode. 276 * NOTE this function not supported by spcp825-007 */ 277 static void spcp8x5_set_workMode(struct usb_device *dev, u16 value, 278 u16 index, enum spcp8x5_type type) 279 { 280 int ret; 281 282 /* I return Permited not support here but seem inval device 283 * is more fix */ 284 if (type == SPCP825_007_TYPE) 285 return; 286 287 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 288 SET_WORKING_MODE_TYPE, SET_WORKING_MODE, 289 value, index, NULL, 0, 100); 290 dev_dbg(&dev->dev, "value = %#x , index = %#x\n", value, index); 291 if (ret < 0) 292 dev_dbg(&dev->dev, 293 "RTSCTS usb_control_msg(enable flowctrl) = %d\n", ret); 294 } 295 296 static int spcp8x5_carrier_raised(struct usb_serial_port *port) 297 { 298 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 299 if (priv->line_status & MSR_STATUS_LINE_DCD) 300 return 1; 301 return 0; 302 } 303 304 static void spcp8x5_dtr_rts(struct usb_serial_port *port, int on) 305 { 306 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 307 unsigned long flags; 308 u8 control; 309 310 spin_lock_irqsave(&priv->lock, flags); 311 if (on) 312 priv->line_control = MCR_CONTROL_LINE_DTR 313 | MCR_CONTROL_LINE_RTS; 314 else 315 priv->line_control &= ~ (MCR_CONTROL_LINE_DTR 316 | MCR_CONTROL_LINE_RTS); 317 control = priv->line_control; 318 spin_unlock_irqrestore(&priv->lock, flags); 319 spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type); 320 } 321 322 static void spcp8x5_init_termios(struct tty_struct *tty) 323 { 324 /* for the 1st time call this function */ 325 *(tty->termios) = tty_std_termios; 326 tty->termios->c_cflag = B115200 | CS8 | CREAD | HUPCL | CLOCAL; 327 tty->termios->c_ispeed = 115200; 328 tty->termios->c_ospeed = 115200; 329 } 330 331 /* set the serial param for transfer. we should check if we really need to 332 * transfer. if we set flow control we should do this too. */ 333 static void spcp8x5_set_termios(struct tty_struct *tty, 334 struct usb_serial_port *port, struct ktermios *old_termios) 335 { 336 struct usb_serial *serial = port->serial; 337 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 338 unsigned long flags; 339 unsigned int cflag = tty->termios->c_cflag; 340 unsigned int old_cflag = old_termios->c_cflag; 341 unsigned short uartdata; 342 unsigned char buf[2] = {0, 0}; 343 int baud; 344 int i; 345 u8 control; 346 347 348 /* check that they really want us to change something */ 349 if (!tty_termios_hw_change(tty->termios, old_termios)) 350 return; 351 352 /* set DTR/RTS active */ 353 spin_lock_irqsave(&priv->lock, flags); 354 control = priv->line_control; 355 if ((old_cflag & CBAUD) == B0) { 356 priv->line_control |= MCR_DTR; 357 if (!(old_cflag & CRTSCTS)) 358 priv->line_control |= MCR_RTS; 359 } 360 if (control != priv->line_control) { 361 control = priv->line_control; 362 spin_unlock_irqrestore(&priv->lock, flags); 363 spcp8x5_set_ctrlLine(serial->dev, control , priv->type); 364 } else { 365 spin_unlock_irqrestore(&priv->lock, flags); 366 } 367 368 /* Set Baud Rate */ 369 baud = tty_get_baud_rate(tty); 370 switch (baud) { 371 case 300: buf[0] = 0x00; break; 372 case 600: buf[0] = 0x01; break; 373 case 1200: buf[0] = 0x02; break; 374 case 2400: buf[0] = 0x03; break; 375 case 4800: buf[0] = 0x04; break; 376 case 9600: buf[0] = 0x05; break; 377 case 19200: buf[0] = 0x07; break; 378 case 38400: buf[0] = 0x09; break; 379 case 57600: buf[0] = 0x0a; break; 380 case 115200: buf[0] = 0x0b; break; 381 case 230400: buf[0] = 0x0c; break; 382 case 460800: buf[0] = 0x0d; break; 383 case 921600: buf[0] = 0x0e; break; 384 /* case 1200000: buf[0] = 0x0f; break; */ 385 /* case 2400000: buf[0] = 0x10; break; */ 386 case 3000000: buf[0] = 0x11; break; 387 /* case 6000000: buf[0] = 0x12; break; */ 388 case 0: 389 case 1000000: 390 buf[0] = 0x0b; break; 391 default: 392 dev_err(&port->dev, "spcp825 driver does not support the " 393 "baudrate requested, using default of 9600.\n"); 394 } 395 396 /* Set Data Length : 00:5bit, 01:6bit, 10:7bit, 11:8bit */ 397 if (cflag & CSIZE) { 398 switch (cflag & CSIZE) { 399 case CS5: 400 buf[1] |= SET_UART_FORMAT_SIZE_5; 401 break; 402 case CS6: 403 buf[1] |= SET_UART_FORMAT_SIZE_6; 404 break; 405 case CS7: 406 buf[1] |= SET_UART_FORMAT_SIZE_7; 407 break; 408 default: 409 case CS8: 410 buf[1] |= SET_UART_FORMAT_SIZE_8; 411 break; 412 } 413 } 414 415 /* Set Stop bit2 : 0:1bit 1:2bit */ 416 buf[1] |= (cflag & CSTOPB) ? SET_UART_FORMAT_STOP_2 : 417 SET_UART_FORMAT_STOP_1; 418 419 /* Set Parity bit3-4 01:Odd 11:Even */ 420 if (cflag & PARENB) { 421 buf[1] |= (cflag & PARODD) ? 422 SET_UART_FORMAT_PAR_ODD : SET_UART_FORMAT_PAR_EVEN ; 423 } else 424 buf[1] |= SET_UART_FORMAT_PAR_NONE; 425 426 uartdata = buf[0] | buf[1]<<8; 427 428 i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 429 SET_UART_FORMAT_TYPE, SET_UART_FORMAT, 430 uartdata, 0, NULL, 0, 100); 431 if (i < 0) 432 dev_err(&port->dev, "Set UART format %#x failed (error = %d)\n", 433 uartdata, i); 434 dbg("0x21:0x40:0:0 %d", i); 435 436 if (cflag & CRTSCTS) { 437 /* enable hardware flow control */ 438 spcp8x5_set_workMode(serial->dev, 0x000a, 439 SET_WORKING_MODE_U2C, priv->type); 440 } 441 } 442 443 /* open the serial port. do some usb system call. set termios and get the line 444 * status of the device. */ 445 static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port) 446 { 447 struct ktermios tmp_termios; 448 struct usb_serial *serial = port->serial; 449 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 450 int ret; 451 unsigned long flags; 452 u8 status = 0x30; 453 /* status 0x30 means DSR and CTS = 1 other CDC RI and delta = 0 */ 454 455 usb_clear_halt(serial->dev, port->write_urb->pipe); 456 usb_clear_halt(serial->dev, port->read_urb->pipe); 457 458 ret = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 459 0x09, 0x00, 460 0x01, 0x00, NULL, 0x00, 100); 461 if (ret) 462 return ret; 463 464 spcp8x5_set_ctrlLine(serial->dev, priv->line_control , priv->type); 465 466 /* Setup termios */ 467 if (tty) 468 spcp8x5_set_termios(tty, port, &tmp_termios); 469 470 spcp8x5_get_msr(serial->dev, &status, priv->type); 471 472 /* may be we should update uart status here but now we did not do */ 473 spin_lock_irqsave(&priv->lock, flags); 474 priv->line_status = status & 0xf0 ; 475 spin_unlock_irqrestore(&priv->lock, flags); 476 477 port->port.drain_delay = 256; 478 479 return usb_serial_generic_open(tty, port); 480 } 481 482 static void spcp8x5_process_read_urb(struct urb *urb) 483 { 484 struct usb_serial_port *port = urb->context; 485 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 486 struct tty_struct *tty; 487 unsigned char *data = urb->transfer_buffer; 488 unsigned long flags; 489 u8 status; 490 char tty_flag; 491 492 /* get tty_flag from status */ 493 tty_flag = TTY_NORMAL; 494 495 spin_lock_irqsave(&priv->lock, flags); 496 status = priv->line_status; 497 priv->line_status &= ~UART_STATE_TRANSIENT_MASK; 498 spin_unlock_irqrestore(&priv->lock, flags); 499 /* wake up the wait for termios */ 500 wake_up_interruptible(&priv->delta_msr_wait); 501 502 if (!urb->actual_length) 503 return; 504 505 tty = tty_port_tty_get(&port->port); 506 if (!tty) 507 return; 508 509 if (status & UART_STATE_TRANSIENT_MASK) { 510 /* break takes precedence over parity, which takes precedence 511 * over framing errors */ 512 if (status & UART_BREAK_ERROR) 513 tty_flag = TTY_BREAK; 514 else if (status & UART_PARITY_ERROR) 515 tty_flag = TTY_PARITY; 516 else if (status & UART_FRAME_ERROR) 517 tty_flag = TTY_FRAME; 518 dev_dbg(&port->dev, "tty_flag = %d\n", tty_flag); 519 520 /* overrun is special, not associated with a char */ 521 if (status & UART_OVERRUN_ERROR) 522 tty_insert_flip_char(tty, 0, TTY_OVERRUN); 523 524 if (status & UART_DCD) 525 usb_serial_handle_dcd_change(port, tty, 526 priv->line_status & MSR_STATUS_LINE_DCD); 527 } 528 529 tty_insert_flip_string_fixed_flag(tty, data, tty_flag, 530 urb->actual_length); 531 tty_flip_buffer_push(tty); 532 tty_kref_put(tty); 533 } 534 535 static int spcp8x5_wait_modem_info(struct usb_serial_port *port, 536 unsigned int arg) 537 { 538 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 539 unsigned long flags; 540 unsigned int prevstatus; 541 unsigned int status; 542 unsigned int changed; 543 544 spin_lock_irqsave(&priv->lock, flags); 545 prevstatus = priv->line_status; 546 spin_unlock_irqrestore(&priv->lock, flags); 547 548 while (1) { 549 /* wake up in bulk read */ 550 interruptible_sleep_on(&priv->delta_msr_wait); 551 552 /* see if a signal did it */ 553 if (signal_pending(current)) 554 return -ERESTARTSYS; 555 556 spin_lock_irqsave(&priv->lock, flags); 557 status = priv->line_status; 558 spin_unlock_irqrestore(&priv->lock, flags); 559 560 changed = prevstatus^status; 561 562 if (((arg & TIOCM_RNG) && (changed & MSR_STATUS_LINE_RI)) || 563 ((arg & TIOCM_DSR) && (changed & MSR_STATUS_LINE_DSR)) || 564 ((arg & TIOCM_CD) && (changed & MSR_STATUS_LINE_DCD)) || 565 ((arg & TIOCM_CTS) && (changed & MSR_STATUS_LINE_CTS))) 566 return 0; 567 568 prevstatus = status; 569 } 570 /* NOTREACHED */ 571 return 0; 572 } 573 574 static int spcp8x5_ioctl(struct tty_struct *tty, 575 unsigned int cmd, unsigned long arg) 576 { 577 struct usb_serial_port *port = tty->driver_data; 578 dbg("%s (%d) cmd = 0x%04x", __func__, port->number, cmd); 579 580 switch (cmd) { 581 case TIOCMIWAIT: 582 dbg("%s (%d) TIOCMIWAIT", __func__, port->number); 583 return spcp8x5_wait_modem_info(port, arg); 584 585 default: 586 dbg("%s not supported = 0x%04x", __func__, cmd); 587 break; 588 } 589 590 return -ENOIOCTLCMD; 591 } 592 593 static int spcp8x5_tiocmset(struct tty_struct *tty, 594 unsigned int set, unsigned int clear) 595 { 596 struct usb_serial_port *port = tty->driver_data; 597 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 598 unsigned long flags; 599 u8 control; 600 601 spin_lock_irqsave(&priv->lock, flags); 602 if (set & TIOCM_RTS) 603 priv->line_control |= MCR_RTS; 604 if (set & TIOCM_DTR) 605 priv->line_control |= MCR_DTR; 606 if (clear & TIOCM_RTS) 607 priv->line_control &= ~MCR_RTS; 608 if (clear & TIOCM_DTR) 609 priv->line_control &= ~MCR_DTR; 610 control = priv->line_control; 611 spin_unlock_irqrestore(&priv->lock, flags); 612 613 return spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type); 614 } 615 616 static int spcp8x5_tiocmget(struct tty_struct *tty) 617 { 618 struct usb_serial_port *port = tty->driver_data; 619 struct spcp8x5_private *priv = usb_get_serial_port_data(port); 620 unsigned long flags; 621 unsigned int mcr; 622 unsigned int status; 623 unsigned int result; 624 625 spin_lock_irqsave(&priv->lock, flags); 626 mcr = priv->line_control; 627 status = priv->line_status; 628 spin_unlock_irqrestore(&priv->lock, flags); 629 630 result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0) 631 | ((mcr & MCR_RTS) ? TIOCM_RTS : 0) 632 | ((status & MSR_STATUS_LINE_CTS) ? TIOCM_CTS : 0) 633 | ((status & MSR_STATUS_LINE_DSR) ? TIOCM_DSR : 0) 634 | ((status & MSR_STATUS_LINE_RI) ? TIOCM_RI : 0) 635 | ((status & MSR_STATUS_LINE_DCD) ? TIOCM_CD : 0); 636 637 return result; 638 } 639 640 /* All of the device info needed for the spcp8x5 SIO serial converter */ 641 static struct usb_serial_driver spcp8x5_device = { 642 .driver = { 643 .owner = THIS_MODULE, 644 .name = "SPCP8x5", 645 }, 646 .id_table = id_table, 647 .num_ports = 1, 648 .open = spcp8x5_open, 649 .dtr_rts = spcp8x5_dtr_rts, 650 .carrier_raised = spcp8x5_carrier_raised, 651 .set_termios = spcp8x5_set_termios, 652 .init_termios = spcp8x5_init_termios, 653 .ioctl = spcp8x5_ioctl, 654 .tiocmget = spcp8x5_tiocmget, 655 .tiocmset = spcp8x5_tiocmset, 656 .attach = spcp8x5_startup, 657 .release = spcp8x5_release, 658 .process_read_urb = spcp8x5_process_read_urb, 659 }; 660 661 static struct usb_serial_driver * const serial_drivers[] = { 662 &spcp8x5_device, NULL 663 }; 664 665 module_usb_serial_driver(spcp8x5_driver, serial_drivers); 666 667 MODULE_DESCRIPTION(DRIVER_DESC); 668 MODULE_VERSION(DRIVER_VERSION); 669 MODULE_LICENSE("GPL"); 670 671 module_param(debug, bool, S_IRUGO | S_IWUSR); 672 MODULE_PARM_DESC(debug, "Debug enabled or not"); 673