1// SPDX-License-Identifier: GPL-2.0+ 2/* 3 Keyspan USB to Serial Converter driver 4 5 (C) Copyright (C) 2000-2001 Hugh Blemings <hugh@blemings.org> 6 (C) Copyright (C) 2002 Greg Kroah-Hartman <greg@kroah.com> 7 8 See http://blemings.org/hugh/keyspan.html for more information. 9 10 Code in this driver inspired by and in a number of places taken 11 from Brian Warner's original Keyspan-PDA driver. 12 13 This driver has been put together with the support of Innosys, Inc. 14 and Keyspan, Inc the manufacturers of the Keyspan USB-serial products. 15 Thanks Guys :) 16 17 Thanks to Paulus for miscellaneous tidy ups, some largish chunks 18 of much nicer and/or completely new code and (perhaps most uniquely) 19 having the patience to sit down and explain why and where he'd changed 20 stuff. 21 22 Tip 'o the hat to IBM (and previously Linuxcare :) for supporting 23 staff in their work on open source projects. 24*/ 25 26 27#include <linux/kernel.h> 28#include <linux/jiffies.h> 29#include <linux/errno.h> 30#include <linux/slab.h> 31#include <linux/tty.h> 32#include <linux/tty_driver.h> 33#include <linux/tty_flip.h> 34#include <linux/module.h> 35#include <linux/spinlock.h> 36#include <linux/uaccess.h> 37#include <linux/usb.h> 38#include <linux/usb/serial.h> 39#include <linux/usb/ezusb.h> 40 41#define DRIVER_AUTHOR "Hugh Blemings <hugh@misc.nu" 42#define DRIVER_DESC "Keyspan USB to Serial Converter Driver" 43 44/* Function prototypes for Keyspan serial converter */ 45static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port); 46static void keyspan_close(struct usb_serial_port *port); 47static void keyspan_dtr_rts(struct usb_serial_port *port, int on); 48static int keyspan_startup(struct usb_serial *serial); 49static void keyspan_disconnect(struct usb_serial *serial); 50static void keyspan_release(struct usb_serial *serial); 51static int keyspan_port_probe(struct usb_serial_port *port); 52static int keyspan_port_remove(struct usb_serial_port *port); 53static int keyspan_write_room(struct tty_struct *tty); 54static int keyspan_write(struct tty_struct *tty, struct usb_serial_port *port, 55 const unsigned char *buf, int count); 56static void keyspan_send_setup(struct usb_serial_port *port, int reset_port); 57static void keyspan_set_termios(struct tty_struct *tty, 58 struct usb_serial_port *port, 59 struct ktermios *old); 60static void keyspan_break_ctl(struct tty_struct *tty, int break_state); 61static int keyspan_tiocmget(struct tty_struct *tty); 62static int keyspan_tiocmset(struct tty_struct *tty, unsigned int set, 63 unsigned int clear); 64static int keyspan_fake_startup(struct usb_serial *serial); 65 66static int keyspan_usa19_calc_baud(struct usb_serial_port *port, 67 u32 baud_rate, u32 baudclk, 68 u8 *rate_hi, u8 *rate_low, 69 u8 *prescaler, int portnum); 70static int keyspan_usa19w_calc_baud(struct usb_serial_port *port, 71 u32 baud_rate, u32 baudclk, 72 u8 *rate_hi, u8 *rate_low, 73 u8 *prescaler, int portnum); 74static int keyspan_usa28_calc_baud(struct usb_serial_port *port, 75 u32 baud_rate, u32 baudclk, 76 u8 *rate_hi, u8 *rate_low, 77 u8 *prescaler, int portnum); 78static int keyspan_usa19hs_calc_baud(struct usb_serial_port *port, 79 u32 baud_rate, u32 baudclk, 80 u8 *rate_hi, u8 *rate_low, 81 u8 *prescaler, int portnum); 82 83static int keyspan_usa28_send_setup(struct usb_serial *serial, 84 struct usb_serial_port *port, 85 int reset_port); 86static int keyspan_usa26_send_setup(struct usb_serial *serial, 87 struct usb_serial_port *port, 88 int reset_port); 89static int keyspan_usa49_send_setup(struct usb_serial *serial, 90 struct usb_serial_port *port, 91 int reset_port); 92static int keyspan_usa90_send_setup(struct usb_serial *serial, 93 struct usb_serial_port *port, 94 int reset_port); 95static int keyspan_usa67_send_setup(struct usb_serial *serial, 96 struct usb_serial_port *port, 97 int reset_port); 98 99/* Values used for baud rate calculation - device specific */ 100#define KEYSPAN_INVALID_BAUD_RATE (-1) 101#define KEYSPAN_BAUD_RATE_OK (0) 102#define KEYSPAN_USA18X_BAUDCLK (12000000L) /* a guess */ 103#define KEYSPAN_USA19_BAUDCLK (12000000L) 104#define KEYSPAN_USA19W_BAUDCLK (24000000L) 105#define KEYSPAN_USA19HS_BAUDCLK (14769231L) 106#define KEYSPAN_USA28_BAUDCLK (1843200L) 107#define KEYSPAN_USA28X_BAUDCLK (12000000L) 108#define KEYSPAN_USA49W_BAUDCLK (48000000L) 109 110/* Some constants used to characterise each device. */ 111#define KEYSPAN_MAX_NUM_PORTS (4) 112#define KEYSPAN_MAX_FLIPS (2) 113 114/* 115 * Device info for the Keyspan serial converter, used by the overall 116 * usb-serial probe function. 117 */ 118#define KEYSPAN_VENDOR_ID (0x06cd) 119 120/* Product IDs for the products supported, pre-renumeration */ 121#define keyspan_usa18x_pre_product_id 0x0105 122#define keyspan_usa19_pre_product_id 0x0103 123#define keyspan_usa19qi_pre_product_id 0x010b 124#define keyspan_mpr_pre_product_id 0x011b 125#define keyspan_usa19qw_pre_product_id 0x0118 126#define keyspan_usa19w_pre_product_id 0x0106 127#define keyspan_usa28_pre_product_id 0x0101 128#define keyspan_usa28x_pre_product_id 0x0102 129#define keyspan_usa28xa_pre_product_id 0x0114 130#define keyspan_usa28xb_pre_product_id 0x0113 131#define keyspan_usa49w_pre_product_id 0x0109 132#define keyspan_usa49wlc_pre_product_id 0x011a 133 134/* 135 * Product IDs post-renumeration. Note that the 28x and 28xb have the same 136 * id's post-renumeration but behave identically so it's not an issue. As 137 * such, the 28xb is not listed in any of the device tables. 138 */ 139#define keyspan_usa18x_product_id 0x0112 140#define keyspan_usa19_product_id 0x0107 141#define keyspan_usa19qi_product_id 0x010c 142#define keyspan_usa19hs_product_id 0x0121 143#define keyspan_mpr_product_id 0x011c 144#define keyspan_usa19qw_product_id 0x0119 145#define keyspan_usa19w_product_id 0x0108 146#define keyspan_usa28_product_id 0x010f 147#define keyspan_usa28x_product_id 0x0110 148#define keyspan_usa28xa_product_id 0x0115 149#define keyspan_usa28xb_product_id 0x0110 150#define keyspan_usa28xg_product_id 0x0135 151#define keyspan_usa49w_product_id 0x010a 152#define keyspan_usa49wlc_product_id 0x012a 153#define keyspan_usa49wg_product_id 0x0131 154 155struct keyspan_device_details { 156 /* product ID value */ 157 int product_id; 158 159 enum {msg_usa26, msg_usa28, msg_usa49, msg_usa90, msg_usa67} msg_format; 160 161 /* Number of physical ports */ 162 int num_ports; 163 164 /* 1 if endpoint flipping used on input, 0 if not */ 165 int indat_endp_flip; 166 167 /* 1 if endpoint flipping used on output, 0 if not */ 168 int outdat_endp_flip; 169 170 /* 171 * Table mapping input data endpoint IDs to physical port 172 * number and flip if used 173 */ 174 int indat_endpoints[KEYSPAN_MAX_NUM_PORTS]; 175 176 /* Same for output endpoints */ 177 int outdat_endpoints[KEYSPAN_MAX_NUM_PORTS]; 178 179 /* Input acknowledge endpoints */ 180 int inack_endpoints[KEYSPAN_MAX_NUM_PORTS]; 181 182 /* Output control endpoints */ 183 int outcont_endpoints[KEYSPAN_MAX_NUM_PORTS]; 184 185 /* Endpoint used for input status */ 186 int instat_endpoint; 187 188 /* Endpoint used for input data 49WG only */ 189 int indat_endpoint; 190 191 /* Endpoint used for global control functions */ 192 int glocont_endpoint; 193 194 int (*calculate_baud_rate)(struct usb_serial_port *port, 195 u32 baud_rate, u32 baudclk, 196 u8 *rate_hi, u8 *rate_low, u8 *prescaler, 197 int portnum); 198 u32 baudclk; 199}; 200 201/* 202 * Now for each device type we setup the device detail structure with the 203 * appropriate information (provided in Keyspan's documentation) 204 */ 205 206static const struct keyspan_device_details usa18x_device_details = { 207 .product_id = keyspan_usa18x_product_id, 208 .msg_format = msg_usa26, 209 .num_ports = 1, 210 .indat_endp_flip = 0, 211 .outdat_endp_flip = 1, 212 .indat_endpoints = {0x81}, 213 .outdat_endpoints = {0x01}, 214 .inack_endpoints = {0x85}, 215 .outcont_endpoints = {0x05}, 216 .instat_endpoint = 0x87, 217 .indat_endpoint = -1, 218 .glocont_endpoint = 0x07, 219 .calculate_baud_rate = keyspan_usa19w_calc_baud, 220 .baudclk = KEYSPAN_USA18X_BAUDCLK, 221}; 222 223static const struct keyspan_device_details usa19_device_details = { 224 .product_id = keyspan_usa19_product_id, 225 .msg_format = msg_usa28, 226 .num_ports = 1, 227 .indat_endp_flip = 1, 228 .outdat_endp_flip = 1, 229 .indat_endpoints = {0x81}, 230 .outdat_endpoints = {0x01}, 231 .inack_endpoints = {0x83}, 232 .outcont_endpoints = {0x03}, 233 .instat_endpoint = 0x84, 234 .indat_endpoint = -1, 235 .glocont_endpoint = -1, 236 .calculate_baud_rate = keyspan_usa19_calc_baud, 237 .baudclk = KEYSPAN_USA19_BAUDCLK, 238}; 239 240static const struct keyspan_device_details usa19qi_device_details = { 241 .product_id = keyspan_usa19qi_product_id, 242 .msg_format = msg_usa28, 243 .num_ports = 1, 244 .indat_endp_flip = 1, 245 .outdat_endp_flip = 1, 246 .indat_endpoints = {0x81}, 247 .outdat_endpoints = {0x01}, 248 .inack_endpoints = {0x83}, 249 .outcont_endpoints = {0x03}, 250 .instat_endpoint = 0x84, 251 .indat_endpoint = -1, 252 .glocont_endpoint = -1, 253 .calculate_baud_rate = keyspan_usa28_calc_baud, 254 .baudclk = KEYSPAN_USA19_BAUDCLK, 255}; 256 257static const struct keyspan_device_details mpr_device_details = { 258 .product_id = keyspan_mpr_product_id, 259 .msg_format = msg_usa28, 260 .num_ports = 1, 261 .indat_endp_flip = 1, 262 .outdat_endp_flip = 1, 263 .indat_endpoints = {0x81}, 264 .outdat_endpoints = {0x01}, 265 .inack_endpoints = {0x83}, 266 .outcont_endpoints = {0x03}, 267 .instat_endpoint = 0x84, 268 .indat_endpoint = -1, 269 .glocont_endpoint = -1, 270 .calculate_baud_rate = keyspan_usa28_calc_baud, 271 .baudclk = KEYSPAN_USA19_BAUDCLK, 272}; 273 274static const struct keyspan_device_details usa19qw_device_details = { 275 .product_id = keyspan_usa19qw_product_id, 276 .msg_format = msg_usa26, 277 .num_ports = 1, 278 .indat_endp_flip = 0, 279 .outdat_endp_flip = 1, 280 .indat_endpoints = {0x81}, 281 .outdat_endpoints = {0x01}, 282 .inack_endpoints = {0x85}, 283 .outcont_endpoints = {0x05}, 284 .instat_endpoint = 0x87, 285 .indat_endpoint = -1, 286 .glocont_endpoint = 0x07, 287 .calculate_baud_rate = keyspan_usa19w_calc_baud, 288 .baudclk = KEYSPAN_USA19W_BAUDCLK, 289}; 290 291static const struct keyspan_device_details usa19w_device_details = { 292 .product_id = keyspan_usa19w_product_id, 293 .msg_format = msg_usa26, 294 .num_ports = 1, 295 .indat_endp_flip = 0, 296 .outdat_endp_flip = 1, 297 .indat_endpoints = {0x81}, 298 .outdat_endpoints = {0x01}, 299 .inack_endpoints = {0x85}, 300 .outcont_endpoints = {0x05}, 301 .instat_endpoint = 0x87, 302 .indat_endpoint = -1, 303 .glocont_endpoint = 0x07, 304 .calculate_baud_rate = keyspan_usa19w_calc_baud, 305 .baudclk = KEYSPAN_USA19W_BAUDCLK, 306}; 307 308static const struct keyspan_device_details usa19hs_device_details = { 309 .product_id = keyspan_usa19hs_product_id, 310 .msg_format = msg_usa90, 311 .num_ports = 1, 312 .indat_endp_flip = 0, 313 .outdat_endp_flip = 0, 314 .indat_endpoints = {0x81}, 315 .outdat_endpoints = {0x01}, 316 .inack_endpoints = {-1}, 317 .outcont_endpoints = {0x02}, 318 .instat_endpoint = 0x82, 319 .indat_endpoint = -1, 320 .glocont_endpoint = -1, 321 .calculate_baud_rate = keyspan_usa19hs_calc_baud, 322 .baudclk = KEYSPAN_USA19HS_BAUDCLK, 323}; 324 325static const struct keyspan_device_details usa28_device_details = { 326 .product_id = keyspan_usa28_product_id, 327 .msg_format = msg_usa28, 328 .num_ports = 2, 329 .indat_endp_flip = 1, 330 .outdat_endp_flip = 1, 331 .indat_endpoints = {0x81, 0x83}, 332 .outdat_endpoints = {0x01, 0x03}, 333 .inack_endpoints = {0x85, 0x86}, 334 .outcont_endpoints = {0x05, 0x06}, 335 .instat_endpoint = 0x87, 336 .indat_endpoint = -1, 337 .glocont_endpoint = 0x07, 338 .calculate_baud_rate = keyspan_usa28_calc_baud, 339 .baudclk = KEYSPAN_USA28_BAUDCLK, 340}; 341 342static const struct keyspan_device_details usa28x_device_details = { 343 .product_id = keyspan_usa28x_product_id, 344 .msg_format = msg_usa26, 345 .num_ports = 2, 346 .indat_endp_flip = 0, 347 .outdat_endp_flip = 1, 348 .indat_endpoints = {0x81, 0x83}, 349 .outdat_endpoints = {0x01, 0x03}, 350 .inack_endpoints = {0x85, 0x86}, 351 .outcont_endpoints = {0x05, 0x06}, 352 .instat_endpoint = 0x87, 353 .indat_endpoint = -1, 354 .glocont_endpoint = 0x07, 355 .calculate_baud_rate = keyspan_usa19w_calc_baud, 356 .baudclk = KEYSPAN_USA28X_BAUDCLK, 357}; 358 359static const struct keyspan_device_details usa28xa_device_details = { 360 .product_id = keyspan_usa28xa_product_id, 361 .msg_format = msg_usa26, 362 .num_ports = 2, 363 .indat_endp_flip = 0, 364 .outdat_endp_flip = 1, 365 .indat_endpoints = {0x81, 0x83}, 366 .outdat_endpoints = {0x01, 0x03}, 367 .inack_endpoints = {0x85, 0x86}, 368 .outcont_endpoints = {0x05, 0x06}, 369 .instat_endpoint = 0x87, 370 .indat_endpoint = -1, 371 .glocont_endpoint = 0x07, 372 .calculate_baud_rate = keyspan_usa19w_calc_baud, 373 .baudclk = KEYSPAN_USA28X_BAUDCLK, 374}; 375 376static const struct keyspan_device_details usa28xg_device_details = { 377 .product_id = keyspan_usa28xg_product_id, 378 .msg_format = msg_usa67, 379 .num_ports = 2, 380 .indat_endp_flip = 0, 381 .outdat_endp_flip = 0, 382 .indat_endpoints = {0x84, 0x88}, 383 .outdat_endpoints = {0x02, 0x06}, 384 .inack_endpoints = {-1, -1}, 385 .outcont_endpoints = {-1, -1}, 386 .instat_endpoint = 0x81, 387 .indat_endpoint = -1, 388 .glocont_endpoint = 0x01, 389 .calculate_baud_rate = keyspan_usa19w_calc_baud, 390 .baudclk = KEYSPAN_USA28X_BAUDCLK, 391}; 392/* 393 * We don't need a separate entry for the usa28xb as it appears as a 28x 394 * anyway. 395 */ 396 397static const struct keyspan_device_details usa49w_device_details = { 398 .product_id = keyspan_usa49w_product_id, 399 .msg_format = msg_usa49, 400 .num_ports = 4, 401 .indat_endp_flip = 0, 402 .outdat_endp_flip = 0, 403 .indat_endpoints = {0x81, 0x82, 0x83, 0x84}, 404 .outdat_endpoints = {0x01, 0x02, 0x03, 0x04}, 405 .inack_endpoints = {-1, -1, -1, -1}, 406 .outcont_endpoints = {-1, -1, -1, -1}, 407 .instat_endpoint = 0x87, 408 .indat_endpoint = -1, 409 .glocont_endpoint = 0x07, 410 .calculate_baud_rate = keyspan_usa19w_calc_baud, 411 .baudclk = KEYSPAN_USA49W_BAUDCLK, 412}; 413 414static const struct keyspan_device_details usa49wlc_device_details = { 415 .product_id = keyspan_usa49wlc_product_id, 416 .msg_format = msg_usa49, 417 .num_ports = 4, 418 .indat_endp_flip = 0, 419 .outdat_endp_flip = 0, 420 .indat_endpoints = {0x81, 0x82, 0x83, 0x84}, 421 .outdat_endpoints = {0x01, 0x02, 0x03, 0x04}, 422 .inack_endpoints = {-1, -1, -1, -1}, 423 .outcont_endpoints = {-1, -1, -1, -1}, 424 .instat_endpoint = 0x87, 425 .indat_endpoint = -1, 426 .glocont_endpoint = 0x07, 427 .calculate_baud_rate = keyspan_usa19w_calc_baud, 428 .baudclk = KEYSPAN_USA19W_BAUDCLK, 429}; 430 431static const struct keyspan_device_details usa49wg_device_details = { 432 .product_id = keyspan_usa49wg_product_id, 433 .msg_format = msg_usa49, 434 .num_ports = 4, 435 .indat_endp_flip = 0, 436 .outdat_endp_flip = 0, 437 .indat_endpoints = {-1, -1, -1, -1}, /* single 'global' data in EP */ 438 .outdat_endpoints = {0x01, 0x02, 0x04, 0x06}, 439 .inack_endpoints = {-1, -1, -1, -1}, 440 .outcont_endpoints = {-1, -1, -1, -1}, 441 .instat_endpoint = 0x81, 442 .indat_endpoint = 0x88, 443 .glocont_endpoint = 0x00, /* uses control EP */ 444 .calculate_baud_rate = keyspan_usa19w_calc_baud, 445 .baudclk = KEYSPAN_USA19W_BAUDCLK, 446}; 447 448static const struct keyspan_device_details *keyspan_devices[] = { 449 &usa18x_device_details, 450 &usa19_device_details, 451 &usa19qi_device_details, 452 &mpr_device_details, 453 &usa19qw_device_details, 454 &usa19w_device_details, 455 &usa19hs_device_details, 456 &usa28_device_details, 457 &usa28x_device_details, 458 &usa28xa_device_details, 459 &usa28xg_device_details, 460 /* 28xb not required as it renumerates as a 28x */ 461 &usa49w_device_details, 462 &usa49wlc_device_details, 463 &usa49wg_device_details, 464 NULL, 465}; 466 467static const struct usb_device_id keyspan_ids_combined[] = { 468 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_pre_product_id) }, 469 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_pre_product_id) }, 470 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_pre_product_id) }, 471 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_pre_product_id) }, 472 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qw_pre_product_id) }, 473 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_mpr_pre_product_id) }, 474 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_pre_product_id) }, 475 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_pre_product_id) }, 476 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_pre_product_id) }, 477 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xb_pre_product_id) }, 478 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_pre_product_id) }, 479 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_pre_product_id) }, 480 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_product_id) }, 481 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_product_id) }, 482 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_product_id) }, 483 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_product_id) }, 484 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qw_product_id) }, 485 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19hs_product_id) }, 486 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_mpr_product_id) }, 487 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_product_id) }, 488 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_product_id) }, 489 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_product_id) }, 490 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xg_product_id) }, 491 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_product_id)}, 492 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_product_id)}, 493 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wg_product_id)}, 494 { } /* Terminating entry */ 495}; 496 497MODULE_DEVICE_TABLE(usb, keyspan_ids_combined); 498 499/* usb_device_id table for the pre-firmware download keyspan devices */ 500static const struct usb_device_id keyspan_pre_ids[] = { 501 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_pre_product_id) }, 502 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_pre_product_id) }, 503 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_pre_product_id) }, 504 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qw_pre_product_id) }, 505 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_pre_product_id) }, 506 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_mpr_pre_product_id) }, 507 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_pre_product_id) }, 508 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_pre_product_id) }, 509 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_pre_product_id) }, 510 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xb_pre_product_id) }, 511 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_pre_product_id) }, 512 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_pre_product_id) }, 513 { } /* Terminating entry */ 514}; 515 516static const struct usb_device_id keyspan_1port_ids[] = { 517 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa18x_product_id) }, 518 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19_product_id) }, 519 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qi_product_id) }, 520 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19qw_product_id) }, 521 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19w_product_id) }, 522 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa19hs_product_id) }, 523 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_mpr_product_id) }, 524 { } /* Terminating entry */ 525}; 526 527static const struct usb_device_id keyspan_2port_ids[] = { 528 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28_product_id) }, 529 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28x_product_id) }, 530 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xa_product_id) }, 531 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa28xg_product_id) }, 532 { } /* Terminating entry */ 533}; 534 535static const struct usb_device_id keyspan_4port_ids[] = { 536 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49w_product_id) }, 537 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wlc_product_id)}, 538 { USB_DEVICE(KEYSPAN_VENDOR_ID, keyspan_usa49wg_product_id)}, 539 { } /* Terminating entry */ 540}; 541 542#define INSTAT_BUFLEN 32 543#define GLOCONT_BUFLEN 64 544#define INDAT49W_BUFLEN 512 545#define IN_BUFLEN 64 546#define OUT_BUFLEN 64 547#define INACK_BUFLEN 1 548#define OUTCONT_BUFLEN 64 549 550 /* Per device and per port private data */ 551struct keyspan_serial_private { 552 const struct keyspan_device_details *device_details; 553 554 struct urb *instat_urb; 555 char *instat_buf; 556 557 /* added to support 49wg, where data from all 4 ports comes in 558 on 1 EP and high-speed supported */ 559 struct urb *indat_urb; 560 char *indat_buf; 561 562 /* XXX this one probably will need a lock */ 563 struct urb *glocont_urb; 564 char *glocont_buf; 565 char *ctrl_buf; /* for EP0 control message */ 566}; 567 568struct keyspan_port_private { 569 /* Keep track of which input & output endpoints to use */ 570 int in_flip; 571 int out_flip; 572 573 /* Keep duplicate of device details in each port 574 structure as well - simplifies some of the 575 callback functions etc. */ 576 const struct keyspan_device_details *device_details; 577 578 /* Input endpoints and buffer for this port */ 579 struct urb *in_urbs[2]; 580 char *in_buffer[2]; 581 /* Output endpoints and buffer for this port */ 582 struct urb *out_urbs[2]; 583 char *out_buffer[2]; 584 585 /* Input ack endpoint */ 586 struct urb *inack_urb; 587 char *inack_buffer; 588 589 /* Output control endpoint */ 590 struct urb *outcont_urb; 591 char *outcont_buffer; 592 593 /* Settings for the port */ 594 int baud; 595 int old_baud; 596 unsigned int cflag; 597 unsigned int old_cflag; 598 enum {flow_none, flow_cts, flow_xon} flow_control; 599 int rts_state; /* Handshaking pins (outputs) */ 600 int dtr_state; 601 int cts_state; /* Handshaking pins (inputs) */ 602 int dsr_state; 603 int dcd_state; 604 int ri_state; 605 int break_on; 606 607 unsigned long tx_start_time[2]; 608 int resend_cont; /* need to resend control packet */ 609}; 610 611/* Include Keyspan message headers. All current Keyspan Adapters 612 make use of one of five message formats which are referred 613 to as USA-26, USA-28, USA-49, USA-90, USA-67 by Keyspan and 614 within this driver. */ 615#include "keyspan_usa26msg.h" 616#include "keyspan_usa28msg.h" 617#include "keyspan_usa49msg.h" 618#include "keyspan_usa90msg.h" 619#include "keyspan_usa67msg.h" 620 621 622static void keyspan_break_ctl(struct tty_struct *tty, int break_state) 623{ 624 struct usb_serial_port *port = tty->driver_data; 625 struct keyspan_port_private *p_priv; 626 627 p_priv = usb_get_serial_port_data(port); 628 629 if (break_state == -1) 630 p_priv->break_on = 1; 631 else 632 p_priv->break_on = 0; 633 634 keyspan_send_setup(port, 0); 635} 636 637 638static void keyspan_set_termios(struct tty_struct *tty, 639 struct usb_serial_port *port, struct ktermios *old_termios) 640{ 641 int baud_rate, device_port; 642 struct keyspan_port_private *p_priv; 643 const struct keyspan_device_details *d_details; 644 unsigned int cflag; 645 646 p_priv = usb_get_serial_port_data(port); 647 d_details = p_priv->device_details; 648 cflag = tty->termios.c_cflag; 649 device_port = port->port_number; 650 651 /* Baud rate calculation takes baud rate as an integer 652 so other rates can be generated if desired. */ 653 baud_rate = tty_get_baud_rate(tty); 654 /* If no match or invalid, don't change */ 655 if (d_details->calculate_baud_rate(port, baud_rate, d_details->baudclk, 656 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) { 657 /* FIXME - more to do here to ensure rate changes cleanly */ 658 /* FIXME - calculate exact rate from divisor ? */ 659 p_priv->baud = baud_rate; 660 } else 661 baud_rate = tty_termios_baud_rate(old_termios); 662 663 tty_encode_baud_rate(tty, baud_rate, baud_rate); 664 /* set CTS/RTS handshake etc. */ 665 p_priv->cflag = cflag; 666 p_priv->flow_control = (cflag & CRTSCTS) ? flow_cts : flow_none; 667 668 /* Mark/Space not supported */ 669 tty->termios.c_cflag &= ~CMSPAR; 670 671 keyspan_send_setup(port, 0); 672} 673 674static int keyspan_tiocmget(struct tty_struct *tty) 675{ 676 struct usb_serial_port *port = tty->driver_data; 677 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port); 678 unsigned int value; 679 680 value = ((p_priv->rts_state) ? TIOCM_RTS : 0) | 681 ((p_priv->dtr_state) ? TIOCM_DTR : 0) | 682 ((p_priv->cts_state) ? TIOCM_CTS : 0) | 683 ((p_priv->dsr_state) ? TIOCM_DSR : 0) | 684 ((p_priv->dcd_state) ? TIOCM_CAR : 0) | 685 ((p_priv->ri_state) ? TIOCM_RNG : 0); 686 687 return value; 688} 689 690static int keyspan_tiocmset(struct tty_struct *tty, 691 unsigned int set, unsigned int clear) 692{ 693 struct usb_serial_port *port = tty->driver_data; 694 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port); 695 696 if (set & TIOCM_RTS) 697 p_priv->rts_state = 1; 698 if (set & TIOCM_DTR) 699 p_priv->dtr_state = 1; 700 if (clear & TIOCM_RTS) 701 p_priv->rts_state = 0; 702 if (clear & TIOCM_DTR) 703 p_priv->dtr_state = 0; 704 keyspan_send_setup(port, 0); 705 return 0; 706} 707 708/* Write function is similar for the four protocols used 709 with only a minor change for usa90 (usa19hs) required */ 710static int keyspan_write(struct tty_struct *tty, 711 struct usb_serial_port *port, const unsigned char *buf, int count) 712{ 713 struct keyspan_port_private *p_priv; 714 const struct keyspan_device_details *d_details; 715 int flip; 716 int left, todo; 717 struct urb *this_urb; 718 int err, maxDataLen, dataOffset; 719 720 p_priv = usb_get_serial_port_data(port); 721 d_details = p_priv->device_details; 722 723 if (d_details->msg_format == msg_usa90) { 724 maxDataLen = 64; 725 dataOffset = 0; 726 } else { 727 maxDataLen = 63; 728 dataOffset = 1; 729 } 730 731 dev_dbg(&port->dev, "%s - %d chars, flip=%d\n", __func__, count, 732 p_priv->out_flip); 733 734 for (left = count; left > 0; left -= todo) { 735 todo = left; 736 if (todo > maxDataLen) 737 todo = maxDataLen; 738 739 flip = p_priv->out_flip; 740 741 /* Check we have a valid urb/endpoint before we use it... */ 742 this_urb = p_priv->out_urbs[flip]; 743 if (this_urb == NULL) { 744 /* no bulk out, so return 0 bytes written */ 745 dev_dbg(&port->dev, "%s - no output urb :(\n", __func__); 746 return count; 747 } 748 749 dev_dbg(&port->dev, "%s - endpoint %x flip %d\n", 750 __func__, usb_pipeendpoint(this_urb->pipe), flip); 751 752 if (this_urb->status == -EINPROGRESS) { 753 if (time_before(jiffies, 754 p_priv->tx_start_time[flip] + 10 * HZ)) 755 break; 756 usb_unlink_urb(this_urb); 757 break; 758 } 759 760 /* First byte in buffer is "last flag" (except for usa19hx) 761 - unused so for now so set to zero */ 762 ((char *)this_urb->transfer_buffer)[0] = 0; 763 764 memcpy(this_urb->transfer_buffer + dataOffset, buf, todo); 765 buf += todo; 766 767 /* send the data out the bulk port */ 768 this_urb->transfer_buffer_length = todo + dataOffset; 769 770 err = usb_submit_urb(this_urb, GFP_ATOMIC); 771 if (err != 0) 772 dev_dbg(&port->dev, "usb_submit_urb(write bulk) failed (%d)\n", err); 773 p_priv->tx_start_time[flip] = jiffies; 774 775 /* Flip for next time if usa26 or usa28 interface 776 (not used on usa49) */ 777 p_priv->out_flip = (flip + 1) & d_details->outdat_endp_flip; 778 } 779 780 return count - left; 781} 782 783static void usa26_indat_callback(struct urb *urb) 784{ 785 int i, err; 786 int endpoint; 787 struct usb_serial_port *port; 788 unsigned char *data = urb->transfer_buffer; 789 int status = urb->status; 790 791 endpoint = usb_pipeendpoint(urb->pipe); 792 793 if (status) { 794 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n", 795 __func__, status, endpoint); 796 return; 797 } 798 799 port = urb->context; 800 if (urb->actual_length) { 801 /* 0x80 bit is error flag */ 802 if ((data[0] & 0x80) == 0) { 803 /* no errors on individual bytes, only 804 possible overrun err */ 805 if (data[0] & RXERROR_OVERRUN) { 806 tty_insert_flip_char(&port->port, 0, 807 TTY_OVERRUN); 808 } 809 for (i = 1; i < urb->actual_length ; ++i) 810 tty_insert_flip_char(&port->port, data[i], 811 TTY_NORMAL); 812 } else { 813 /* some bytes had errors, every byte has status */ 814 dev_dbg(&port->dev, "%s - RX error!!!!\n", __func__); 815 for (i = 0; i + 1 < urb->actual_length; i += 2) { 816 int stat = data[i]; 817 int flag = TTY_NORMAL; 818 819 if (stat & RXERROR_OVERRUN) { 820 tty_insert_flip_char(&port->port, 0, 821 TTY_OVERRUN); 822 } 823 /* XXX should handle break (0x10) */ 824 if (stat & RXERROR_PARITY) 825 flag = TTY_PARITY; 826 else if (stat & RXERROR_FRAMING) 827 flag = TTY_FRAME; 828 829 tty_insert_flip_char(&port->port, data[i+1], 830 flag); 831 } 832 } 833 tty_flip_buffer_push(&port->port); 834 } 835 836 /* Resubmit urb so we continue receiving */ 837 err = usb_submit_urb(urb, GFP_ATOMIC); 838 if (err != 0) 839 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err); 840} 841 842/* Outdat handling is common for all devices */ 843static void usa2x_outdat_callback(struct urb *urb) 844{ 845 struct usb_serial_port *port; 846 struct keyspan_port_private *p_priv; 847 848 port = urb->context; 849 p_priv = usb_get_serial_port_data(port); 850 dev_dbg(&port->dev, "%s - urb %d\n", __func__, urb == p_priv->out_urbs[1]); 851 852 usb_serial_port_softint(port); 853} 854 855static void usa26_inack_callback(struct urb *urb) 856{ 857} 858 859static void usa26_outcont_callback(struct urb *urb) 860{ 861 struct usb_serial_port *port; 862 struct keyspan_port_private *p_priv; 863 864 port = urb->context; 865 p_priv = usb_get_serial_port_data(port); 866 867 if (p_priv->resend_cont) { 868 dev_dbg(&port->dev, "%s - sending setup\n", __func__); 869 keyspan_usa26_send_setup(port->serial, port, 870 p_priv->resend_cont - 1); 871 } 872} 873 874static void usa26_instat_callback(struct urb *urb) 875{ 876 unsigned char *data = urb->transfer_buffer; 877 struct keyspan_usa26_portStatusMessage *msg; 878 struct usb_serial *serial; 879 struct usb_serial_port *port; 880 struct keyspan_port_private *p_priv; 881 int old_dcd_state, err; 882 int status = urb->status; 883 884 serial = urb->context; 885 886 if (status) { 887 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n", 888 __func__, status); 889 return; 890 } 891 if (urb->actual_length != 9) { 892 dev_dbg(&urb->dev->dev, "%s - %d byte report??\n", __func__, urb->actual_length); 893 goto exit; 894 } 895 896 msg = (struct keyspan_usa26_portStatusMessage *)data; 897 898 /* Check port number from message and retrieve private data */ 899 if (msg->port >= serial->num_ports) { 900 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port); 901 goto exit; 902 } 903 port = serial->port[msg->port]; 904 p_priv = usb_get_serial_port_data(port); 905 if (!p_priv) 906 goto resubmit; 907 908 /* Update handshaking pin state information */ 909 old_dcd_state = p_priv->dcd_state; 910 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0); 911 p_priv->dsr_state = ((msg->dsr) ? 1 : 0); 912 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0); 913 p_priv->ri_state = ((msg->ri) ? 1 : 0); 914 915 if (old_dcd_state != p_priv->dcd_state) 916 tty_port_tty_hangup(&port->port, true); 917resubmit: 918 /* Resubmit urb so we continue receiving */ 919 err = usb_submit_urb(urb, GFP_ATOMIC); 920 if (err != 0) 921 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err); 922exit: ; 923} 924 925static void usa26_glocont_callback(struct urb *urb) 926{ 927} 928 929 930static void usa28_indat_callback(struct urb *urb) 931{ 932 int err; 933 struct usb_serial_port *port; 934 unsigned char *data; 935 struct keyspan_port_private *p_priv; 936 int status = urb->status; 937 938 port = urb->context; 939 p_priv = usb_get_serial_port_data(port); 940 data = urb->transfer_buffer; 941 942 if (urb != p_priv->in_urbs[p_priv->in_flip]) 943 return; 944 945 do { 946 if (status) { 947 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n", 948 __func__, status, usb_pipeendpoint(urb->pipe)); 949 return; 950 } 951 952 port = urb->context; 953 p_priv = usb_get_serial_port_data(port); 954 data = urb->transfer_buffer; 955 956 if (urb->actual_length) { 957 tty_insert_flip_string(&port->port, data, 958 urb->actual_length); 959 tty_flip_buffer_push(&port->port); 960 } 961 962 /* Resubmit urb so we continue receiving */ 963 err = usb_submit_urb(urb, GFP_ATOMIC); 964 if (err != 0) 965 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", 966 __func__, err); 967 p_priv->in_flip ^= 1; 968 969 urb = p_priv->in_urbs[p_priv->in_flip]; 970 } while (urb->status != -EINPROGRESS); 971} 972 973static void usa28_inack_callback(struct urb *urb) 974{ 975} 976 977static void usa28_outcont_callback(struct urb *urb) 978{ 979 struct usb_serial_port *port; 980 struct keyspan_port_private *p_priv; 981 982 port = urb->context; 983 p_priv = usb_get_serial_port_data(port); 984 985 if (p_priv->resend_cont) { 986 dev_dbg(&port->dev, "%s - sending setup\n", __func__); 987 keyspan_usa28_send_setup(port->serial, port, 988 p_priv->resend_cont - 1); 989 } 990} 991 992static void usa28_instat_callback(struct urb *urb) 993{ 994 int err; 995 unsigned char *data = urb->transfer_buffer; 996 struct keyspan_usa28_portStatusMessage *msg; 997 struct usb_serial *serial; 998 struct usb_serial_port *port; 999 struct keyspan_port_private *p_priv; 1000 int old_dcd_state; 1001 int status = urb->status; 1002 1003 serial = urb->context; 1004 1005 if (status) { 1006 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n", 1007 __func__, status); 1008 return; 1009 } 1010 1011 if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) { 1012 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length); 1013 goto exit; 1014 } 1015 1016 msg = (struct keyspan_usa28_portStatusMessage *)data; 1017 1018 /* Check port number from message and retrieve private data */ 1019 if (msg->port >= serial->num_ports) { 1020 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port); 1021 goto exit; 1022 } 1023 port = serial->port[msg->port]; 1024 p_priv = usb_get_serial_port_data(port); 1025 if (!p_priv) 1026 goto resubmit; 1027 1028 /* Update handshaking pin state information */ 1029 old_dcd_state = p_priv->dcd_state; 1030 p_priv->cts_state = ((msg->cts) ? 1 : 0); 1031 p_priv->dsr_state = ((msg->dsr) ? 1 : 0); 1032 p_priv->dcd_state = ((msg->dcd) ? 1 : 0); 1033 p_priv->ri_state = ((msg->ri) ? 1 : 0); 1034 1035 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) 1036 tty_port_tty_hangup(&port->port, true); 1037resubmit: 1038 /* Resubmit urb so we continue receiving */ 1039 err = usb_submit_urb(urb, GFP_ATOMIC); 1040 if (err != 0) 1041 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err); 1042exit: ; 1043} 1044 1045static void usa28_glocont_callback(struct urb *urb) 1046{ 1047} 1048 1049 1050static void usa49_glocont_callback(struct urb *urb) 1051{ 1052 struct usb_serial *serial; 1053 struct usb_serial_port *port; 1054 struct keyspan_port_private *p_priv; 1055 int i; 1056 1057 serial = urb->context; 1058 for (i = 0; i < serial->num_ports; ++i) { 1059 port = serial->port[i]; 1060 p_priv = usb_get_serial_port_data(port); 1061 if (!p_priv) 1062 continue; 1063 1064 if (p_priv->resend_cont) { 1065 dev_dbg(&port->dev, "%s - sending setup\n", __func__); 1066 keyspan_usa49_send_setup(serial, port, 1067 p_priv->resend_cont - 1); 1068 break; 1069 } 1070 } 1071} 1072 1073 /* This is actually called glostat in the Keyspan 1074 doco */ 1075static void usa49_instat_callback(struct urb *urb) 1076{ 1077 int err; 1078 unsigned char *data = urb->transfer_buffer; 1079 struct keyspan_usa49_portStatusMessage *msg; 1080 struct usb_serial *serial; 1081 struct usb_serial_port *port; 1082 struct keyspan_port_private *p_priv; 1083 int old_dcd_state; 1084 int status = urb->status; 1085 1086 serial = urb->context; 1087 1088 if (status) { 1089 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n", 1090 __func__, status); 1091 return; 1092 } 1093 1094 if (urb->actual_length != 1095 sizeof(struct keyspan_usa49_portStatusMessage)) { 1096 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length); 1097 goto exit; 1098 } 1099 1100 msg = (struct keyspan_usa49_portStatusMessage *)data; 1101 1102 /* Check port number from message and retrieve private data */ 1103 if (msg->portNumber >= serial->num_ports) { 1104 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", 1105 __func__, msg->portNumber); 1106 goto exit; 1107 } 1108 port = serial->port[msg->portNumber]; 1109 p_priv = usb_get_serial_port_data(port); 1110 if (!p_priv) 1111 goto resubmit; 1112 1113 /* Update handshaking pin state information */ 1114 old_dcd_state = p_priv->dcd_state; 1115 p_priv->cts_state = ((msg->cts) ? 1 : 0); 1116 p_priv->dsr_state = ((msg->dsr) ? 1 : 0); 1117 p_priv->dcd_state = ((msg->dcd) ? 1 : 0); 1118 p_priv->ri_state = ((msg->ri) ? 1 : 0); 1119 1120 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) 1121 tty_port_tty_hangup(&port->port, true); 1122resubmit: 1123 /* Resubmit urb so we continue receiving */ 1124 err = usb_submit_urb(urb, GFP_ATOMIC); 1125 if (err != 0) 1126 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err); 1127exit: ; 1128} 1129 1130static void usa49_inack_callback(struct urb *urb) 1131{ 1132} 1133 1134static void usa49_indat_callback(struct urb *urb) 1135{ 1136 int i, err; 1137 int endpoint; 1138 struct usb_serial_port *port; 1139 unsigned char *data = urb->transfer_buffer; 1140 int status = urb->status; 1141 1142 endpoint = usb_pipeendpoint(urb->pipe); 1143 1144 if (status) { 1145 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n", 1146 __func__, status, endpoint); 1147 return; 1148 } 1149 1150 port = urb->context; 1151 if (urb->actual_length) { 1152 /* 0x80 bit is error flag */ 1153 if ((data[0] & 0x80) == 0) { 1154 /* no error on any byte */ 1155 tty_insert_flip_string(&port->port, data + 1, 1156 urb->actual_length - 1); 1157 } else { 1158 /* some bytes had errors, every byte has status */ 1159 for (i = 0; i + 1 < urb->actual_length; i += 2) { 1160 int stat = data[i]; 1161 int flag = TTY_NORMAL; 1162 1163 if (stat & RXERROR_OVERRUN) { 1164 tty_insert_flip_char(&port->port, 0, 1165 TTY_OVERRUN); 1166 } 1167 /* XXX should handle break (0x10) */ 1168 if (stat & RXERROR_PARITY) 1169 flag = TTY_PARITY; 1170 else if (stat & RXERROR_FRAMING) 1171 flag = TTY_FRAME; 1172 1173 tty_insert_flip_char(&port->port, data[i+1], 1174 flag); 1175 } 1176 } 1177 tty_flip_buffer_push(&port->port); 1178 } 1179 1180 /* Resubmit urb so we continue receiving */ 1181 err = usb_submit_urb(urb, GFP_ATOMIC); 1182 if (err != 0) 1183 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err); 1184} 1185 1186static void usa49wg_indat_callback(struct urb *urb) 1187{ 1188 int i, len, x, err; 1189 struct usb_serial *serial; 1190 struct usb_serial_port *port; 1191 unsigned char *data = urb->transfer_buffer; 1192 int status = urb->status; 1193 1194 serial = urb->context; 1195 1196 if (status) { 1197 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n", 1198 __func__, status); 1199 return; 1200 } 1201 1202 /* inbound data is in the form P#, len, status, data */ 1203 i = 0; 1204 len = 0; 1205 1206 while (i < urb->actual_length) { 1207 1208 /* Check port number from message */ 1209 if (data[i] >= serial->num_ports) { 1210 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", 1211 __func__, data[i]); 1212 return; 1213 } 1214 port = serial->port[data[i++]]; 1215 len = data[i++]; 1216 1217 /* 0x80 bit is error flag */ 1218 if ((data[i] & 0x80) == 0) { 1219 /* no error on any byte */ 1220 i++; 1221 for (x = 1; x < len && i < urb->actual_length; ++x) 1222 tty_insert_flip_char(&port->port, 1223 data[i++], 0); 1224 } else { 1225 /* 1226 * some bytes had errors, every byte has status 1227 */ 1228 for (x = 0; x + 1 < len && 1229 i + 1 < urb->actual_length; x += 2) { 1230 int stat = data[i]; 1231 int flag = TTY_NORMAL; 1232 1233 if (stat & RXERROR_OVERRUN) { 1234 tty_insert_flip_char(&port->port, 0, 1235 TTY_OVERRUN); 1236 } 1237 /* XXX should handle break (0x10) */ 1238 if (stat & RXERROR_PARITY) 1239 flag = TTY_PARITY; 1240 else if (stat & RXERROR_FRAMING) 1241 flag = TTY_FRAME; 1242 1243 tty_insert_flip_char(&port->port, data[i+1], 1244 flag); 1245 i += 2; 1246 } 1247 } 1248 tty_flip_buffer_push(&port->port); 1249 } 1250 1251 /* Resubmit urb so we continue receiving */ 1252 err = usb_submit_urb(urb, GFP_ATOMIC); 1253 if (err != 0) 1254 dev_dbg(&urb->dev->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err); 1255} 1256 1257/* not used, usa-49 doesn't have per-port control endpoints */ 1258static void usa49_outcont_callback(struct urb *urb) 1259{ 1260} 1261 1262static void usa90_indat_callback(struct urb *urb) 1263{ 1264 int i, err; 1265 int endpoint; 1266 struct usb_serial_port *port; 1267 struct keyspan_port_private *p_priv; 1268 unsigned char *data = urb->transfer_buffer; 1269 int status = urb->status; 1270 1271 endpoint = usb_pipeendpoint(urb->pipe); 1272 1273 if (status) { 1274 dev_dbg(&urb->dev->dev, "%s - nonzero status %d on endpoint %x\n", 1275 __func__, status, endpoint); 1276 return; 1277 } 1278 1279 port = urb->context; 1280 p_priv = usb_get_serial_port_data(port); 1281 1282 if (urb->actual_length) { 1283 /* if current mode is DMA, looks like usa28 format 1284 otherwise looks like usa26 data format */ 1285 1286 if (p_priv->baud > 57600) 1287 tty_insert_flip_string(&port->port, data, 1288 urb->actual_length); 1289 else { 1290 /* 0x80 bit is error flag */ 1291 if ((data[0] & 0x80) == 0) { 1292 /* no errors on individual bytes, only 1293 possible overrun err*/ 1294 if (data[0] & RXERROR_OVERRUN) { 1295 tty_insert_flip_char(&port->port, 0, 1296 TTY_OVERRUN); 1297 } 1298 for (i = 1; i < urb->actual_length ; ++i) 1299 tty_insert_flip_char(&port->port, 1300 data[i], TTY_NORMAL); 1301 } else { 1302 /* some bytes had errors, every byte has status */ 1303 dev_dbg(&port->dev, "%s - RX error!!!!\n", __func__); 1304 for (i = 0; i + 1 < urb->actual_length; i += 2) { 1305 int stat = data[i]; 1306 int flag = TTY_NORMAL; 1307 1308 if (stat & RXERROR_OVERRUN) { 1309 tty_insert_flip_char( 1310 &port->port, 0, 1311 TTY_OVERRUN); 1312 } 1313 /* XXX should handle break (0x10) */ 1314 if (stat & RXERROR_PARITY) 1315 flag = TTY_PARITY; 1316 else if (stat & RXERROR_FRAMING) 1317 flag = TTY_FRAME; 1318 1319 tty_insert_flip_char(&port->port, 1320 data[i+1], flag); 1321 } 1322 } 1323 } 1324 tty_flip_buffer_push(&port->port); 1325 } 1326 1327 /* Resubmit urb so we continue receiving */ 1328 err = usb_submit_urb(urb, GFP_ATOMIC); 1329 if (err != 0) 1330 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err); 1331} 1332 1333 1334static void usa90_instat_callback(struct urb *urb) 1335{ 1336 unsigned char *data = urb->transfer_buffer; 1337 struct keyspan_usa90_portStatusMessage *msg; 1338 struct usb_serial *serial; 1339 struct usb_serial_port *port; 1340 struct keyspan_port_private *p_priv; 1341 int old_dcd_state, err; 1342 int status = urb->status; 1343 1344 serial = urb->context; 1345 1346 if (status) { 1347 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n", 1348 __func__, status); 1349 return; 1350 } 1351 if (urb->actual_length < 14) { 1352 dev_dbg(&urb->dev->dev, "%s - %d byte report??\n", __func__, urb->actual_length); 1353 goto exit; 1354 } 1355 1356 msg = (struct keyspan_usa90_portStatusMessage *)data; 1357 1358 /* Now do something useful with the data */ 1359 1360 port = serial->port[0]; 1361 p_priv = usb_get_serial_port_data(port); 1362 if (!p_priv) 1363 goto resubmit; 1364 1365 /* Update handshaking pin state information */ 1366 old_dcd_state = p_priv->dcd_state; 1367 p_priv->cts_state = ((msg->cts) ? 1 : 0); 1368 p_priv->dsr_state = ((msg->dsr) ? 1 : 0); 1369 p_priv->dcd_state = ((msg->dcd) ? 1 : 0); 1370 p_priv->ri_state = ((msg->ri) ? 1 : 0); 1371 1372 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) 1373 tty_port_tty_hangup(&port->port, true); 1374resubmit: 1375 /* Resubmit urb so we continue receiving */ 1376 err = usb_submit_urb(urb, GFP_ATOMIC); 1377 if (err != 0) 1378 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err); 1379exit: 1380 ; 1381} 1382 1383static void usa90_outcont_callback(struct urb *urb) 1384{ 1385 struct usb_serial_port *port; 1386 struct keyspan_port_private *p_priv; 1387 1388 port = urb->context; 1389 p_priv = usb_get_serial_port_data(port); 1390 1391 if (p_priv->resend_cont) { 1392 dev_dbg(&urb->dev->dev, "%s - sending setup\n", __func__); 1393 keyspan_usa90_send_setup(port->serial, port, 1394 p_priv->resend_cont - 1); 1395 } 1396} 1397 1398/* Status messages from the 28xg */ 1399static void usa67_instat_callback(struct urb *urb) 1400{ 1401 int err; 1402 unsigned char *data = urb->transfer_buffer; 1403 struct keyspan_usa67_portStatusMessage *msg; 1404 struct usb_serial *serial; 1405 struct usb_serial_port *port; 1406 struct keyspan_port_private *p_priv; 1407 int old_dcd_state; 1408 int status = urb->status; 1409 1410 serial = urb->context; 1411 1412 if (status) { 1413 dev_dbg(&urb->dev->dev, "%s - nonzero status: %d\n", 1414 __func__, status); 1415 return; 1416 } 1417 1418 if (urb->actual_length != 1419 sizeof(struct keyspan_usa67_portStatusMessage)) { 1420 dev_dbg(&urb->dev->dev, "%s - bad length %d\n", __func__, urb->actual_length); 1421 return; 1422 } 1423 1424 1425 /* Now do something useful with the data */ 1426 msg = (struct keyspan_usa67_portStatusMessage *)data; 1427 1428 /* Check port number from message and retrieve private data */ 1429 if (msg->port >= serial->num_ports) { 1430 dev_dbg(&urb->dev->dev, "%s - Unexpected port number %d\n", __func__, msg->port); 1431 return; 1432 } 1433 1434 port = serial->port[msg->port]; 1435 p_priv = usb_get_serial_port_data(port); 1436 if (!p_priv) 1437 goto resubmit; 1438 1439 /* Update handshaking pin state information */ 1440 old_dcd_state = p_priv->dcd_state; 1441 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0); 1442 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0); 1443 1444 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) 1445 tty_port_tty_hangup(&port->port, true); 1446resubmit: 1447 /* Resubmit urb so we continue receiving */ 1448 err = usb_submit_urb(urb, GFP_ATOMIC); 1449 if (err != 0) 1450 dev_dbg(&port->dev, "%s - resubmit read urb failed. (%d)\n", __func__, err); 1451} 1452 1453static void usa67_glocont_callback(struct urb *urb) 1454{ 1455 struct usb_serial *serial; 1456 struct usb_serial_port *port; 1457 struct keyspan_port_private *p_priv; 1458 int i; 1459 1460 serial = urb->context; 1461 for (i = 0; i < serial->num_ports; ++i) { 1462 port = serial->port[i]; 1463 p_priv = usb_get_serial_port_data(port); 1464 if (!p_priv) 1465 continue; 1466 1467 if (p_priv->resend_cont) { 1468 dev_dbg(&port->dev, "%s - sending setup\n", __func__); 1469 keyspan_usa67_send_setup(serial, port, 1470 p_priv->resend_cont - 1); 1471 break; 1472 } 1473 } 1474} 1475 1476static int keyspan_write_room(struct tty_struct *tty) 1477{ 1478 struct usb_serial_port *port = tty->driver_data; 1479 struct keyspan_port_private *p_priv; 1480 const struct keyspan_device_details *d_details; 1481 int flip; 1482 int data_len; 1483 struct urb *this_urb; 1484 1485 p_priv = usb_get_serial_port_data(port); 1486 d_details = p_priv->device_details; 1487 1488 /* FIXME: locking */ 1489 if (d_details->msg_format == msg_usa90) 1490 data_len = 64; 1491 else 1492 data_len = 63; 1493 1494 flip = p_priv->out_flip; 1495 1496 /* Check both endpoints to see if any are available. */ 1497 this_urb = p_priv->out_urbs[flip]; 1498 if (this_urb != NULL) { 1499 if (this_urb->status != -EINPROGRESS) 1500 return data_len; 1501 flip = (flip + 1) & d_details->outdat_endp_flip; 1502 this_urb = p_priv->out_urbs[flip]; 1503 if (this_urb != NULL) { 1504 if (this_urb->status != -EINPROGRESS) 1505 return data_len; 1506 } 1507 } 1508 return 0; 1509} 1510 1511 1512static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port) 1513{ 1514 struct keyspan_port_private *p_priv; 1515 const struct keyspan_device_details *d_details; 1516 int i, err; 1517 int baud_rate, device_port; 1518 struct urb *urb; 1519 unsigned int cflag = 0; 1520 1521 p_priv = usb_get_serial_port_data(port); 1522 d_details = p_priv->device_details; 1523 1524 /* Set some sane defaults */ 1525 p_priv->rts_state = 1; 1526 p_priv->dtr_state = 1; 1527 p_priv->baud = 9600; 1528 1529 /* force baud and lcr to be set on open */ 1530 p_priv->old_baud = 0; 1531 p_priv->old_cflag = 0; 1532 1533 p_priv->out_flip = 0; 1534 p_priv->in_flip = 0; 1535 1536 /* Reset low level data toggle and start reading from endpoints */ 1537 for (i = 0; i < 2; i++) { 1538 urb = p_priv->in_urbs[i]; 1539 if (urb == NULL) 1540 continue; 1541 1542 /* make sure endpoint data toggle is synchronized 1543 with the device */ 1544 usb_clear_halt(urb->dev, urb->pipe); 1545 err = usb_submit_urb(urb, GFP_KERNEL); 1546 if (err != 0) 1547 dev_dbg(&port->dev, "%s - submit urb %d failed (%d)\n", __func__, i, err); 1548 } 1549 1550 /* Reset low level data toggle on out endpoints */ 1551 for (i = 0; i < 2; i++) { 1552 urb = p_priv->out_urbs[i]; 1553 if (urb == NULL) 1554 continue; 1555 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), 1556 usb_pipeout(urb->pipe), 0); */ 1557 } 1558 1559 /* get the terminal config for the setup message now so we don't 1560 * need to send 2 of them */ 1561 1562 device_port = port->port_number; 1563 if (tty) { 1564 cflag = tty->termios.c_cflag; 1565 /* Baud rate calculation takes baud rate as an integer 1566 so other rates can be generated if desired. */ 1567 baud_rate = tty_get_baud_rate(tty); 1568 /* If no match or invalid, leave as default */ 1569 if (baud_rate >= 0 1570 && d_details->calculate_baud_rate(port, baud_rate, d_details->baudclk, 1571 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) { 1572 p_priv->baud = baud_rate; 1573 } 1574 } 1575 /* set CTS/RTS handshake etc. */ 1576 p_priv->cflag = cflag; 1577 p_priv->flow_control = (cflag & CRTSCTS) ? flow_cts : flow_none; 1578 1579 keyspan_send_setup(port, 1); 1580 /* mdelay(100); */ 1581 /* keyspan_set_termios(port, NULL); */ 1582 1583 return 0; 1584} 1585 1586static void keyspan_dtr_rts(struct usb_serial_port *port, int on) 1587{ 1588 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port); 1589 1590 p_priv->rts_state = on; 1591 p_priv->dtr_state = on; 1592 keyspan_send_setup(port, 0); 1593} 1594 1595static void keyspan_close(struct usb_serial_port *port) 1596{ 1597 int i; 1598 struct keyspan_port_private *p_priv; 1599 1600 p_priv = usb_get_serial_port_data(port); 1601 1602 p_priv->rts_state = 0; 1603 p_priv->dtr_state = 0; 1604 1605 keyspan_send_setup(port, 2); 1606 /* pilot-xfer seems to work best with this delay */ 1607 mdelay(100); 1608 1609 p_priv->out_flip = 0; 1610 p_priv->in_flip = 0; 1611 1612 usb_kill_urb(p_priv->inack_urb); 1613 for (i = 0; i < 2; i++) { 1614 usb_kill_urb(p_priv->in_urbs[i]); 1615 usb_kill_urb(p_priv->out_urbs[i]); 1616 } 1617} 1618 1619/* download the firmware to a pre-renumeration device */ 1620static int keyspan_fake_startup(struct usb_serial *serial) 1621{ 1622 char *fw_name; 1623 1624 dev_dbg(&serial->dev->dev, "Keyspan startup version %04x product %04x\n", 1625 le16_to_cpu(serial->dev->descriptor.bcdDevice), 1626 le16_to_cpu(serial->dev->descriptor.idProduct)); 1627 1628 if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000) 1629 != 0x8000) { 1630 dev_dbg(&serial->dev->dev, "Firmware already loaded. Quitting.\n"); 1631 return 1; 1632 } 1633 1634 /* Select firmware image on the basis of idProduct */ 1635 switch (le16_to_cpu(serial->dev->descriptor.idProduct)) { 1636 case keyspan_usa28_pre_product_id: 1637 fw_name = "keyspan/usa28.fw"; 1638 break; 1639 1640 case keyspan_usa28x_pre_product_id: 1641 fw_name = "keyspan/usa28x.fw"; 1642 break; 1643 1644 case keyspan_usa28xa_pre_product_id: 1645 fw_name = "keyspan/usa28xa.fw"; 1646 break; 1647 1648 case keyspan_usa28xb_pre_product_id: 1649 fw_name = "keyspan/usa28xb.fw"; 1650 break; 1651 1652 case keyspan_usa19_pre_product_id: 1653 fw_name = "keyspan/usa19.fw"; 1654 break; 1655 1656 case keyspan_usa19qi_pre_product_id: 1657 fw_name = "keyspan/usa19qi.fw"; 1658 break; 1659 1660 case keyspan_mpr_pre_product_id: 1661 fw_name = "keyspan/mpr.fw"; 1662 break; 1663 1664 case keyspan_usa19qw_pre_product_id: 1665 fw_name = "keyspan/usa19qw.fw"; 1666 break; 1667 1668 case keyspan_usa18x_pre_product_id: 1669 fw_name = "keyspan/usa18x.fw"; 1670 break; 1671 1672 case keyspan_usa19w_pre_product_id: 1673 fw_name = "keyspan/usa19w.fw"; 1674 break; 1675 1676 case keyspan_usa49w_pre_product_id: 1677 fw_name = "keyspan/usa49w.fw"; 1678 break; 1679 1680 case keyspan_usa49wlc_pre_product_id: 1681 fw_name = "keyspan/usa49wlc.fw"; 1682 break; 1683 1684 default: 1685 dev_err(&serial->dev->dev, "Unknown product ID (%04x)\n", 1686 le16_to_cpu(serial->dev->descriptor.idProduct)); 1687 return 1; 1688 } 1689 1690 dev_dbg(&serial->dev->dev, "Uploading Keyspan %s firmware.\n", fw_name); 1691 1692 if (ezusb_fx1_ihex_firmware_download(serial->dev, fw_name) < 0) { 1693 dev_err(&serial->dev->dev, "failed to load firmware \"%s\"\n", 1694 fw_name); 1695 return -ENOENT; 1696 } 1697 1698 /* after downloading firmware Renumeration will occur in a 1699 moment and the new device will bind to the real driver */ 1700 1701 /* we don't want this device to have a driver assigned to it. */ 1702 return 1; 1703} 1704 1705/* Helper functions used by keyspan_setup_urbs */ 1706static struct usb_endpoint_descriptor const *find_ep(struct usb_serial const *serial, 1707 int endpoint) 1708{ 1709 struct usb_host_interface *iface_desc; 1710 struct usb_endpoint_descriptor *ep; 1711 int i; 1712 1713 iface_desc = serial->interface->cur_altsetting; 1714 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { 1715 ep = &iface_desc->endpoint[i].desc; 1716 if (ep->bEndpointAddress == endpoint) 1717 return ep; 1718 } 1719 dev_warn(&serial->interface->dev, "found no endpoint descriptor for endpoint %x\n", 1720 endpoint); 1721 return NULL; 1722} 1723 1724static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint, 1725 int dir, void *ctx, char *buf, int len, 1726 void (*callback)(struct urb *)) 1727{ 1728 struct urb *urb; 1729 struct usb_endpoint_descriptor const *ep_desc; 1730 char const *ep_type_name; 1731 1732 if (endpoint == -1) 1733 return NULL; /* endpoint not needed */ 1734 1735 dev_dbg(&serial->interface->dev, "%s - alloc for endpoint %x\n", 1736 __func__, endpoint); 1737 urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */ 1738 if (!urb) 1739 return NULL; 1740 1741 if (endpoint == 0) { 1742 /* control EP filled in when used */ 1743 return urb; 1744 } 1745 1746 ep_desc = find_ep(serial, endpoint); 1747 if (!ep_desc) { 1748 usb_free_urb(urb); 1749 return NULL; 1750 } 1751 if (usb_endpoint_xfer_int(ep_desc)) { 1752 ep_type_name = "INT"; 1753 usb_fill_int_urb(urb, serial->dev, 1754 usb_sndintpipe(serial->dev, endpoint) | dir, 1755 buf, len, callback, ctx, 1756 ep_desc->bInterval); 1757 } else if (usb_endpoint_xfer_bulk(ep_desc)) { 1758 ep_type_name = "BULK"; 1759 usb_fill_bulk_urb(urb, serial->dev, 1760 usb_sndbulkpipe(serial->dev, endpoint) | dir, 1761 buf, len, callback, ctx); 1762 } else { 1763 dev_warn(&serial->interface->dev, 1764 "unsupported endpoint type %x\n", 1765 usb_endpoint_type(ep_desc)); 1766 usb_free_urb(urb); 1767 return NULL; 1768 } 1769 1770 dev_dbg(&serial->interface->dev, "%s - using urb %p for %s endpoint %x\n", 1771 __func__, urb, ep_type_name, endpoint); 1772 return urb; 1773} 1774 1775static struct callbacks { 1776 void (*instat_callback)(struct urb *); 1777 void (*glocont_callback)(struct urb *); 1778 void (*indat_callback)(struct urb *); 1779 void (*outdat_callback)(struct urb *); 1780 void (*inack_callback)(struct urb *); 1781 void (*outcont_callback)(struct urb *); 1782} keyspan_callbacks[] = { 1783 { 1784 /* msg_usa26 callbacks */ 1785 .instat_callback = usa26_instat_callback, 1786 .glocont_callback = usa26_glocont_callback, 1787 .indat_callback = usa26_indat_callback, 1788 .outdat_callback = usa2x_outdat_callback, 1789 .inack_callback = usa26_inack_callback, 1790 .outcont_callback = usa26_outcont_callback, 1791 }, { 1792 /* msg_usa28 callbacks */ 1793 .instat_callback = usa28_instat_callback, 1794 .glocont_callback = usa28_glocont_callback, 1795 .indat_callback = usa28_indat_callback, 1796 .outdat_callback = usa2x_outdat_callback, 1797 .inack_callback = usa28_inack_callback, 1798 .outcont_callback = usa28_outcont_callback, 1799 }, { 1800 /* msg_usa49 callbacks */ 1801 .instat_callback = usa49_instat_callback, 1802 .glocont_callback = usa49_glocont_callback, 1803 .indat_callback = usa49_indat_callback, 1804 .outdat_callback = usa2x_outdat_callback, 1805 .inack_callback = usa49_inack_callback, 1806 .outcont_callback = usa49_outcont_callback, 1807 }, { 1808 /* msg_usa90 callbacks */ 1809 .instat_callback = usa90_instat_callback, 1810 .glocont_callback = usa28_glocont_callback, 1811 .indat_callback = usa90_indat_callback, 1812 .outdat_callback = usa2x_outdat_callback, 1813 .inack_callback = usa28_inack_callback, 1814 .outcont_callback = usa90_outcont_callback, 1815 }, { 1816 /* msg_usa67 callbacks */ 1817 .instat_callback = usa67_instat_callback, 1818 .glocont_callback = usa67_glocont_callback, 1819 .indat_callback = usa26_indat_callback, 1820 .outdat_callback = usa2x_outdat_callback, 1821 .inack_callback = usa26_inack_callback, 1822 .outcont_callback = usa26_outcont_callback, 1823 } 1824}; 1825 1826 /* Generic setup urbs function that uses 1827 data in device_details */ 1828static void keyspan_setup_urbs(struct usb_serial *serial) 1829{ 1830 struct keyspan_serial_private *s_priv; 1831 const struct keyspan_device_details *d_details; 1832 struct callbacks *cback; 1833 1834 s_priv = usb_get_serial_data(serial); 1835 d_details = s_priv->device_details; 1836 1837 /* Setup values for the various callback routines */ 1838 cback = &keyspan_callbacks[d_details->msg_format]; 1839 1840 /* Allocate and set up urbs for each one that is in use, 1841 starting with instat endpoints */ 1842 s_priv->instat_urb = keyspan_setup_urb 1843 (serial, d_details->instat_endpoint, USB_DIR_IN, 1844 serial, s_priv->instat_buf, INSTAT_BUFLEN, 1845 cback->instat_callback); 1846 1847 s_priv->indat_urb = keyspan_setup_urb 1848 (serial, d_details->indat_endpoint, USB_DIR_IN, 1849 serial, s_priv->indat_buf, INDAT49W_BUFLEN, 1850 usa49wg_indat_callback); 1851 1852 s_priv->glocont_urb = keyspan_setup_urb 1853 (serial, d_details->glocont_endpoint, USB_DIR_OUT, 1854 serial, s_priv->glocont_buf, GLOCONT_BUFLEN, 1855 cback->glocont_callback); 1856} 1857 1858/* usa19 function doesn't require prescaler */ 1859static int keyspan_usa19_calc_baud(struct usb_serial_port *port, 1860 u32 baud_rate, u32 baudclk, u8 *rate_hi, 1861 u8 *rate_low, u8 *prescaler, int portnum) 1862{ 1863 u32 b16, /* baud rate times 16 (actual rate used internally) */ 1864 div, /* divisor */ 1865 cnt; /* inverse of divisor (programmed into 8051) */ 1866 1867 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate); 1868 1869 /* prevent divide by zero... */ 1870 b16 = baud_rate * 16L; 1871 if (b16 == 0) 1872 return KEYSPAN_INVALID_BAUD_RATE; 1873 /* Any "standard" rate over 57k6 is marginal on the USA-19 1874 as we run out of divisor resolution. */ 1875 if (baud_rate > 57600) 1876 return KEYSPAN_INVALID_BAUD_RATE; 1877 1878 /* calculate the divisor and the counter (its inverse) */ 1879 div = baudclk / b16; 1880 if (div == 0) 1881 return KEYSPAN_INVALID_BAUD_RATE; 1882 else 1883 cnt = 0 - div; 1884 1885 if (div > 0xffff) 1886 return KEYSPAN_INVALID_BAUD_RATE; 1887 1888 /* return the counter values if non-null */ 1889 if (rate_low) 1890 *rate_low = (u8) (cnt & 0xff); 1891 if (rate_hi) 1892 *rate_hi = (u8) ((cnt >> 8) & 0xff); 1893 if (rate_low && rate_hi) 1894 dev_dbg(&port->dev, "%s - %d %02x %02x.\n", 1895 __func__, baud_rate, *rate_hi, *rate_low); 1896 return KEYSPAN_BAUD_RATE_OK; 1897} 1898 1899/* usa19hs function doesn't require prescaler */ 1900static int keyspan_usa19hs_calc_baud(struct usb_serial_port *port, 1901 u32 baud_rate, u32 baudclk, u8 *rate_hi, 1902 u8 *rate_low, u8 *prescaler, int portnum) 1903{ 1904 u32 b16, /* baud rate times 16 (actual rate used internally) */ 1905 div; /* divisor */ 1906 1907 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate); 1908 1909 /* prevent divide by zero... */ 1910 b16 = baud_rate * 16L; 1911 if (b16 == 0) 1912 return KEYSPAN_INVALID_BAUD_RATE; 1913 1914 /* calculate the divisor */ 1915 div = baudclk / b16; 1916 if (div == 0) 1917 return KEYSPAN_INVALID_BAUD_RATE; 1918 1919 if (div > 0xffff) 1920 return KEYSPAN_INVALID_BAUD_RATE; 1921 1922 /* return the counter values if non-null */ 1923 if (rate_low) 1924 *rate_low = (u8) (div & 0xff); 1925 1926 if (rate_hi) 1927 *rate_hi = (u8) ((div >> 8) & 0xff); 1928 1929 if (rate_low && rate_hi) 1930 dev_dbg(&port->dev, "%s - %d %02x %02x.\n", 1931 __func__, baud_rate, *rate_hi, *rate_low); 1932 1933 return KEYSPAN_BAUD_RATE_OK; 1934} 1935 1936static int keyspan_usa19w_calc_baud(struct usb_serial_port *port, 1937 u32 baud_rate, u32 baudclk, u8 *rate_hi, 1938 u8 *rate_low, u8 *prescaler, int portnum) 1939{ 1940 u32 b16, /* baud rate times 16 (actual rate used internally) */ 1941 clk, /* clock with 13/8 prescaler */ 1942 div, /* divisor using 13/8 prescaler */ 1943 res, /* resulting baud rate using 13/8 prescaler */ 1944 diff, /* error using 13/8 prescaler */ 1945 smallest_diff; 1946 u8 best_prescaler; 1947 int i; 1948 1949 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate); 1950 1951 /* prevent divide by zero */ 1952 b16 = baud_rate * 16L; 1953 if (b16 == 0) 1954 return KEYSPAN_INVALID_BAUD_RATE; 1955 1956 /* Calculate prescaler by trying them all and looking 1957 for best fit */ 1958 1959 /* start with largest possible difference */ 1960 smallest_diff = 0xffffffff; 1961 1962 /* 0 is an invalid prescaler, used as a flag */ 1963 best_prescaler = 0; 1964 1965 for (i = 8; i <= 0xff; ++i) { 1966 clk = (baudclk * 8) / (u32) i; 1967 1968 div = clk / b16; 1969 if (div == 0) 1970 continue; 1971 1972 res = clk / div; 1973 diff = (res > b16) ? (res-b16) : (b16-res); 1974 1975 if (diff < smallest_diff) { 1976 best_prescaler = i; 1977 smallest_diff = diff; 1978 } 1979 } 1980 1981 if (best_prescaler == 0) 1982 return KEYSPAN_INVALID_BAUD_RATE; 1983 1984 clk = (baudclk * 8) / (u32) best_prescaler; 1985 div = clk / b16; 1986 1987 /* return the divisor and prescaler if non-null */ 1988 if (rate_low) 1989 *rate_low = (u8) (div & 0xff); 1990 if (rate_hi) 1991 *rate_hi = (u8) ((div >> 8) & 0xff); 1992 if (prescaler) { 1993 *prescaler = best_prescaler; 1994 /* dev_dbg(&port->dev, "%s - %d %d\n", __func__, *prescaler, div); */ 1995 } 1996 return KEYSPAN_BAUD_RATE_OK; 1997} 1998 1999 /* USA-28 supports different maximum baud rates on each port */ 2000static int keyspan_usa28_calc_baud(struct usb_serial_port *port, 2001 u32 baud_rate, u32 baudclk, u8 *rate_hi, 2002 u8 *rate_low, u8 *prescaler, int portnum) 2003{ 2004 u32 b16, /* baud rate times 16 (actual rate used internally) */ 2005 div, /* divisor */ 2006 cnt; /* inverse of divisor (programmed into 8051) */ 2007 2008 dev_dbg(&port->dev, "%s - %d.\n", __func__, baud_rate); 2009 2010 /* prevent divide by zero */ 2011 b16 = baud_rate * 16L; 2012 if (b16 == 0) 2013 return KEYSPAN_INVALID_BAUD_RATE; 2014 2015 /* calculate the divisor and the counter (its inverse) */ 2016 div = KEYSPAN_USA28_BAUDCLK / b16; 2017 if (div == 0) 2018 return KEYSPAN_INVALID_BAUD_RATE; 2019 else 2020 cnt = 0 - div; 2021 2022 /* check for out of range, based on portnum, 2023 and return result */ 2024 if (portnum == 0) { 2025 if (div > 0xffff) 2026 return KEYSPAN_INVALID_BAUD_RATE; 2027 } else { 2028 if (portnum == 1) { 2029 if (div > 0xff) 2030 return KEYSPAN_INVALID_BAUD_RATE; 2031 } else 2032 return KEYSPAN_INVALID_BAUD_RATE; 2033 } 2034 2035 /* return the counter values if not NULL 2036 (port 1 will ignore retHi) */ 2037 if (rate_low) 2038 *rate_low = (u8) (cnt & 0xff); 2039 if (rate_hi) 2040 *rate_hi = (u8) ((cnt >> 8) & 0xff); 2041 dev_dbg(&port->dev, "%s - %d OK.\n", __func__, baud_rate); 2042 return KEYSPAN_BAUD_RATE_OK; 2043} 2044 2045static int keyspan_usa26_send_setup(struct usb_serial *serial, 2046 struct usb_serial_port *port, 2047 int reset_port) 2048{ 2049 struct keyspan_usa26_portControlMessage msg; 2050 struct keyspan_serial_private *s_priv; 2051 struct keyspan_port_private *p_priv; 2052 const struct keyspan_device_details *d_details; 2053 struct urb *this_urb; 2054 int device_port, err; 2055 2056 dev_dbg(&port->dev, "%s reset=%d\n", __func__, reset_port); 2057 2058 s_priv = usb_get_serial_data(serial); 2059 p_priv = usb_get_serial_port_data(port); 2060 d_details = s_priv->device_details; 2061 device_port = port->port_number; 2062 2063 this_urb = p_priv->outcont_urb; 2064 2065 /* Make sure we have an urb then send the message */ 2066 if (this_urb == NULL) { 2067 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__); 2068 return -1; 2069 } 2070 2071 dev_dbg(&port->dev, "%s - endpoint %x\n", 2072 __func__, usb_pipeendpoint(this_urb->pipe)); 2073 2074 /* Save reset port val for resend. 2075 Don't overwrite resend for open/close condition. */ 2076 if ((reset_port + 1) > p_priv->resend_cont) 2077 p_priv->resend_cont = reset_port + 1; 2078 if (this_urb->status == -EINPROGRESS) { 2079 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */ 2080 mdelay(5); 2081 return -1; 2082 } 2083 2084 memset(&msg, 0, sizeof(struct keyspan_usa26_portControlMessage)); 2085 2086 /* Only set baud rate if it's changed */ 2087 if (p_priv->old_baud != p_priv->baud) { 2088 p_priv->old_baud = p_priv->baud; 2089 msg.setClocking = 0xff; 2090 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk, 2091 &msg.baudHi, &msg.baudLo, &msg.prescaler, 2092 device_port) == KEYSPAN_INVALID_BAUD_RATE) { 2093 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n", 2094 __func__, p_priv->baud); 2095 msg.baudLo = 0; 2096 msg.baudHi = 125; /* Values for 9600 baud */ 2097 msg.prescaler = 10; 2098 } 2099 msg.setPrescaler = 0xff; 2100 } 2101 2102 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1; 2103 switch (p_priv->cflag & CSIZE) { 2104 case CS5: 2105 msg.lcr |= USA_DATABITS_5; 2106 break; 2107 case CS6: 2108 msg.lcr |= USA_DATABITS_6; 2109 break; 2110 case CS7: 2111 msg.lcr |= USA_DATABITS_7; 2112 break; 2113 case CS8: 2114 msg.lcr |= USA_DATABITS_8; 2115 break; 2116 } 2117 if (p_priv->cflag & PARENB) { 2118 /* note USA_PARITY_NONE == 0 */ 2119 msg.lcr |= (p_priv->cflag & PARODD) ? 2120 USA_PARITY_ODD : USA_PARITY_EVEN; 2121 } 2122 msg.setLcr = 0xff; 2123 2124 msg.ctsFlowControl = (p_priv->flow_control == flow_cts); 2125 msg.xonFlowControl = 0; 2126 msg.setFlowControl = 0xff; 2127 msg.forwardingLength = 16; 2128 msg.xonChar = 17; 2129 msg.xoffChar = 19; 2130 2131 /* Opening port */ 2132 if (reset_port == 1) { 2133 msg._txOn = 1; 2134 msg._txOff = 0; 2135 msg.txFlush = 0; 2136 msg.txBreak = 0; 2137 msg.rxOn = 1; 2138 msg.rxOff = 0; 2139 msg.rxFlush = 1; 2140 msg.rxForward = 0; 2141 msg.returnStatus = 0; 2142 msg.resetDataToggle = 0xff; 2143 } 2144 2145 /* Closing port */ 2146 else if (reset_port == 2) { 2147 msg._txOn = 0; 2148 msg._txOff = 1; 2149 msg.txFlush = 0; 2150 msg.txBreak = 0; 2151 msg.rxOn = 0; 2152 msg.rxOff = 1; 2153 msg.rxFlush = 1; 2154 msg.rxForward = 0; 2155 msg.returnStatus = 0; 2156 msg.resetDataToggle = 0; 2157 } 2158 2159 /* Sending intermediate configs */ 2160 else { 2161 msg._txOn = (!p_priv->break_on); 2162 msg._txOff = 0; 2163 msg.txFlush = 0; 2164 msg.txBreak = (p_priv->break_on); 2165 msg.rxOn = 0; 2166 msg.rxOff = 0; 2167 msg.rxFlush = 0; 2168 msg.rxForward = 0; 2169 msg.returnStatus = 0; 2170 msg.resetDataToggle = 0x0; 2171 } 2172 2173 /* Do handshaking outputs */ 2174 msg.setTxTriState_setRts = 0xff; 2175 msg.txTriState_rts = p_priv->rts_state; 2176 2177 msg.setHskoa_setDtr = 0xff; 2178 msg.hskoa_dtr = p_priv->dtr_state; 2179 2180 p_priv->resend_cont = 0; 2181 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg)); 2182 2183 /* send the data out the device on control endpoint */ 2184 this_urb->transfer_buffer_length = sizeof(msg); 2185 2186 err = usb_submit_urb(this_urb, GFP_ATOMIC); 2187 if (err != 0) 2188 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err); 2189 return 0; 2190} 2191 2192static int keyspan_usa28_send_setup(struct usb_serial *serial, 2193 struct usb_serial_port *port, 2194 int reset_port) 2195{ 2196 struct keyspan_usa28_portControlMessage msg; 2197 struct keyspan_serial_private *s_priv; 2198 struct keyspan_port_private *p_priv; 2199 const struct keyspan_device_details *d_details; 2200 struct urb *this_urb; 2201 int device_port, err; 2202 2203 s_priv = usb_get_serial_data(serial); 2204 p_priv = usb_get_serial_port_data(port); 2205 d_details = s_priv->device_details; 2206 device_port = port->port_number; 2207 2208 /* only do something if we have a bulk out endpoint */ 2209 this_urb = p_priv->outcont_urb; 2210 if (this_urb == NULL) { 2211 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__); 2212 return -1; 2213 } 2214 2215 /* Save reset port val for resend. 2216 Don't overwrite resend for open/close condition. */ 2217 if ((reset_port + 1) > p_priv->resend_cont) 2218 p_priv->resend_cont = reset_port + 1; 2219 if (this_urb->status == -EINPROGRESS) { 2220 dev_dbg(&port->dev, "%s already writing\n", __func__); 2221 mdelay(5); 2222 return -1; 2223 } 2224 2225 memset(&msg, 0, sizeof(struct keyspan_usa28_portControlMessage)); 2226 2227 msg.setBaudRate = 1; 2228 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk, 2229 &msg.baudHi, &msg.baudLo, NULL, 2230 device_port) == KEYSPAN_INVALID_BAUD_RATE) { 2231 dev_dbg(&port->dev, "%s - Invalid baud rate requested %d.\n", 2232 __func__, p_priv->baud); 2233 msg.baudLo = 0xff; 2234 msg.baudHi = 0xb2; /* Values for 9600 baud */ 2235 } 2236 2237 /* If parity is enabled, we must calculate it ourselves. */ 2238 msg.parity = 0; /* XXX for now */ 2239 2240 msg.ctsFlowControl = (p_priv->flow_control == flow_cts); 2241 msg.xonFlowControl = 0; 2242 2243 /* Do handshaking outputs, DTR is inverted relative to RTS */ 2244 msg.rts = p_priv->rts_state; 2245 msg.dtr = p_priv->dtr_state; 2246 2247 msg.forwardingLength = 16; 2248 msg.forwardMs = 10; 2249 msg.breakThreshold = 45; 2250 msg.xonChar = 17; 2251 msg.xoffChar = 19; 2252 2253 /*msg.returnStatus = 1; 2254 msg.resetDataToggle = 0xff;*/ 2255 /* Opening port */ 2256 if (reset_port == 1) { 2257 msg._txOn = 1; 2258 msg._txOff = 0; 2259 msg.txFlush = 0; 2260 msg.txForceXoff = 0; 2261 msg.txBreak = 0; 2262 msg.rxOn = 1; 2263 msg.rxOff = 0; 2264 msg.rxFlush = 1; 2265 msg.rxForward = 0; 2266 msg.returnStatus = 0; 2267 msg.resetDataToggle = 0xff; 2268 } 2269 /* Closing port */ 2270 else if (reset_port == 2) { 2271 msg._txOn = 0; 2272 msg._txOff = 1; 2273 msg.txFlush = 0; 2274 msg.txForceXoff = 0; 2275 msg.txBreak = 0; 2276 msg.rxOn = 0; 2277 msg.rxOff = 1; 2278 msg.rxFlush = 1; 2279 msg.rxForward = 0; 2280 msg.returnStatus = 0; 2281 msg.resetDataToggle = 0; 2282 } 2283 /* Sending intermediate configs */ 2284 else { 2285 msg._txOn = (!p_priv->break_on); 2286 msg._txOff = 0; 2287 msg.txFlush = 0; 2288 msg.txForceXoff = 0; 2289 msg.txBreak = (p_priv->break_on); 2290 msg.rxOn = 0; 2291 msg.rxOff = 0; 2292 msg.rxFlush = 0; 2293 msg.rxForward = 0; 2294 msg.returnStatus = 0; 2295 msg.resetDataToggle = 0x0; 2296 } 2297 2298 p_priv->resend_cont = 0; 2299 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg)); 2300 2301 /* send the data out the device on control endpoint */ 2302 this_urb->transfer_buffer_length = sizeof(msg); 2303 2304 err = usb_submit_urb(this_urb, GFP_ATOMIC); 2305 if (err != 0) 2306 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed\n", __func__); 2307 2308 return 0; 2309} 2310 2311static int keyspan_usa49_send_setup(struct usb_serial *serial, 2312 struct usb_serial_port *port, 2313 int reset_port) 2314{ 2315 struct keyspan_usa49_portControlMessage msg; 2316 struct usb_ctrlrequest *dr = NULL; 2317 struct keyspan_serial_private *s_priv; 2318 struct keyspan_port_private *p_priv; 2319 const struct keyspan_device_details *d_details; 2320 struct urb *this_urb; 2321 int err, device_port; 2322 2323 s_priv = usb_get_serial_data(serial); 2324 p_priv = usb_get_serial_port_data(port); 2325 d_details = s_priv->device_details; 2326 2327 this_urb = s_priv->glocont_urb; 2328 2329 /* Work out which port within the device is being setup */ 2330 device_port = port->port_number; 2331 2332 /* Make sure we have an urb then send the message */ 2333 if (this_urb == NULL) { 2334 dev_dbg(&port->dev, "%s - oops no urb for port.\n", __func__); 2335 return -1; 2336 } 2337 2338 dev_dbg(&port->dev, "%s - endpoint %x (%d)\n", 2339 __func__, usb_pipeendpoint(this_urb->pipe), device_port); 2340 2341 /* Save reset port val for resend. 2342 Don't overwrite resend for open/close condition. */ 2343 if ((reset_port + 1) > p_priv->resend_cont) 2344 p_priv->resend_cont = reset_port + 1; 2345 2346 if (this_urb->status == -EINPROGRESS) { 2347 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */ 2348 mdelay(5); 2349 return -1; 2350 } 2351 2352 memset(&msg, 0, sizeof(struct keyspan_usa49_portControlMessage)); 2353 2354 msg.portNumber = device_port; 2355 2356 /* Only set baud rate if it's changed */ 2357 if (p_priv->old_baud != p_priv->baud) { 2358 p_priv->old_baud = p_priv->baud; 2359 msg.setClocking = 0xff; 2360 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk, 2361 &msg.baudHi, &msg.baudLo, &msg.prescaler, 2362 device_port) == KEYSPAN_INVALID_BAUD_RATE) { 2363 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n", 2364 __func__, p_priv->baud); 2365 msg.baudLo = 0; 2366 msg.baudHi = 125; /* Values for 9600 baud */ 2367 msg.prescaler = 10; 2368 } 2369 /* msg.setPrescaler = 0xff; */ 2370 } 2371 2372 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1; 2373 switch (p_priv->cflag & CSIZE) { 2374 case CS5: 2375 msg.lcr |= USA_DATABITS_5; 2376 break; 2377 case CS6: 2378 msg.lcr |= USA_DATABITS_6; 2379 break; 2380 case CS7: 2381 msg.lcr |= USA_DATABITS_7; 2382 break; 2383 case CS8: 2384 msg.lcr |= USA_DATABITS_8; 2385 break; 2386 } 2387 if (p_priv->cflag & PARENB) { 2388 /* note USA_PARITY_NONE == 0 */ 2389 msg.lcr |= (p_priv->cflag & PARODD) ? 2390 USA_PARITY_ODD : USA_PARITY_EVEN; 2391 } 2392 msg.setLcr = 0xff; 2393 2394 msg.ctsFlowControl = (p_priv->flow_control == flow_cts); 2395 msg.xonFlowControl = 0; 2396 msg.setFlowControl = 0xff; 2397 2398 msg.forwardingLength = 16; 2399 msg.xonChar = 17; 2400 msg.xoffChar = 19; 2401 2402 /* Opening port */ 2403 if (reset_port == 1) { 2404 msg._txOn = 1; 2405 msg._txOff = 0; 2406 msg.txFlush = 0; 2407 msg.txBreak = 0; 2408 msg.rxOn = 1; 2409 msg.rxOff = 0; 2410 msg.rxFlush = 1; 2411 msg.rxForward = 0; 2412 msg.returnStatus = 0; 2413 msg.resetDataToggle = 0xff; 2414 msg.enablePort = 1; 2415 msg.disablePort = 0; 2416 } 2417 /* Closing port */ 2418 else if (reset_port == 2) { 2419 msg._txOn = 0; 2420 msg._txOff = 1; 2421 msg.txFlush = 0; 2422 msg.txBreak = 0; 2423 msg.rxOn = 0; 2424 msg.rxOff = 1; 2425 msg.rxFlush = 1; 2426 msg.rxForward = 0; 2427 msg.returnStatus = 0; 2428 msg.resetDataToggle = 0; 2429 msg.enablePort = 0; 2430 msg.disablePort = 1; 2431 } 2432 /* Sending intermediate configs */ 2433 else { 2434 msg._txOn = (!p_priv->break_on); 2435 msg._txOff = 0; 2436 msg.txFlush = 0; 2437 msg.txBreak = (p_priv->break_on); 2438 msg.rxOn = 0; 2439 msg.rxOff = 0; 2440 msg.rxFlush = 0; 2441 msg.rxForward = 0; 2442 msg.returnStatus = 0; 2443 msg.resetDataToggle = 0x0; 2444 msg.enablePort = 0; 2445 msg.disablePort = 0; 2446 } 2447 2448 /* Do handshaking outputs */ 2449 msg.setRts = 0xff; 2450 msg.rts = p_priv->rts_state; 2451 2452 msg.setDtr = 0xff; 2453 msg.dtr = p_priv->dtr_state; 2454 2455 p_priv->resend_cont = 0; 2456 2457 /* if the device is a 49wg, we send control message on usb 2458 control EP 0 */ 2459 2460 if (d_details->product_id == keyspan_usa49wg_product_id) { 2461 dr = (void *)(s_priv->ctrl_buf); 2462 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT; 2463 dr->bRequest = 0xB0; /* 49wg control message */ 2464 dr->wValue = 0; 2465 dr->wIndex = 0; 2466 dr->wLength = cpu_to_le16(sizeof(msg)); 2467 2468 memcpy(s_priv->glocont_buf, &msg, sizeof(msg)); 2469 2470 usb_fill_control_urb(this_urb, serial->dev, 2471 usb_sndctrlpipe(serial->dev, 0), 2472 (unsigned char *)dr, s_priv->glocont_buf, 2473 sizeof(msg), usa49_glocont_callback, serial); 2474 2475 } else { 2476 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg)); 2477 2478 /* send the data out the device on control endpoint */ 2479 this_urb->transfer_buffer_length = sizeof(msg); 2480 } 2481 err = usb_submit_urb(this_urb, GFP_ATOMIC); 2482 if (err != 0) 2483 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err); 2484 2485 return 0; 2486} 2487 2488static int keyspan_usa90_send_setup(struct usb_serial *serial, 2489 struct usb_serial_port *port, 2490 int reset_port) 2491{ 2492 struct keyspan_usa90_portControlMessage msg; 2493 struct keyspan_serial_private *s_priv; 2494 struct keyspan_port_private *p_priv; 2495 const struct keyspan_device_details *d_details; 2496 struct urb *this_urb; 2497 int err; 2498 u8 prescaler; 2499 2500 s_priv = usb_get_serial_data(serial); 2501 p_priv = usb_get_serial_port_data(port); 2502 d_details = s_priv->device_details; 2503 2504 /* only do something if we have a bulk out endpoint */ 2505 this_urb = p_priv->outcont_urb; 2506 if (this_urb == NULL) { 2507 dev_dbg(&port->dev, "%s - oops no urb.\n", __func__); 2508 return -1; 2509 } 2510 2511 /* Save reset port val for resend. 2512 Don't overwrite resend for open/close condition. */ 2513 if ((reset_port + 1) > p_priv->resend_cont) 2514 p_priv->resend_cont = reset_port + 1; 2515 if (this_urb->status == -EINPROGRESS) { 2516 dev_dbg(&port->dev, "%s already writing\n", __func__); 2517 mdelay(5); 2518 return -1; 2519 } 2520 2521 memset(&msg, 0, sizeof(struct keyspan_usa90_portControlMessage)); 2522 2523 /* Only set baud rate if it's changed */ 2524 if (p_priv->old_baud != p_priv->baud) { 2525 p_priv->old_baud = p_priv->baud; 2526 msg.setClocking = 0x01; 2527 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk, 2528 &msg.baudHi, &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE) { 2529 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n", 2530 __func__, p_priv->baud); 2531 p_priv->baud = 9600; 2532 d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk, 2533 &msg.baudHi, &msg.baudLo, &prescaler, 0); 2534 } 2535 msg.setRxMode = 1; 2536 msg.setTxMode = 1; 2537 } 2538 2539 /* modes must always be correctly specified */ 2540 if (p_priv->baud > 57600) { 2541 msg.rxMode = RXMODE_DMA; 2542 msg.txMode = TXMODE_DMA; 2543 } else { 2544 msg.rxMode = RXMODE_BYHAND; 2545 msg.txMode = TXMODE_BYHAND; 2546 } 2547 2548 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1; 2549 switch (p_priv->cflag & CSIZE) { 2550 case CS5: 2551 msg.lcr |= USA_DATABITS_5; 2552 break; 2553 case CS6: 2554 msg.lcr |= USA_DATABITS_6; 2555 break; 2556 case CS7: 2557 msg.lcr |= USA_DATABITS_7; 2558 break; 2559 case CS8: 2560 msg.lcr |= USA_DATABITS_8; 2561 break; 2562 } 2563 if (p_priv->cflag & PARENB) { 2564 /* note USA_PARITY_NONE == 0 */ 2565 msg.lcr |= (p_priv->cflag & PARODD) ? 2566 USA_PARITY_ODD : USA_PARITY_EVEN; 2567 } 2568 if (p_priv->old_cflag != p_priv->cflag) { 2569 p_priv->old_cflag = p_priv->cflag; 2570 msg.setLcr = 0x01; 2571 } 2572 2573 if (p_priv->flow_control == flow_cts) 2574 msg.txFlowControl = TXFLOW_CTS; 2575 msg.setTxFlowControl = 0x01; 2576 msg.setRxFlowControl = 0x01; 2577 2578 msg.rxForwardingLength = 16; 2579 msg.rxForwardingTimeout = 16; 2580 msg.txAckSetting = 0; 2581 msg.xonChar = 17; 2582 msg.xoffChar = 19; 2583 2584 /* Opening port */ 2585 if (reset_port == 1) { 2586 msg.portEnabled = 1; 2587 msg.rxFlush = 1; 2588 msg.txBreak = (p_priv->break_on); 2589 } 2590 /* Closing port */ 2591 else if (reset_port == 2) 2592 msg.portEnabled = 0; 2593 /* Sending intermediate configs */ 2594 else { 2595 msg.portEnabled = 1; 2596 msg.txBreak = (p_priv->break_on); 2597 } 2598 2599 /* Do handshaking outputs */ 2600 msg.setRts = 0x01; 2601 msg.rts = p_priv->rts_state; 2602 2603 msg.setDtr = 0x01; 2604 msg.dtr = p_priv->dtr_state; 2605 2606 p_priv->resend_cont = 0; 2607 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg)); 2608 2609 /* send the data out the device on control endpoint */ 2610 this_urb->transfer_buffer_length = sizeof(msg); 2611 2612 err = usb_submit_urb(this_urb, GFP_ATOMIC); 2613 if (err != 0) 2614 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err); 2615 return 0; 2616} 2617 2618static int keyspan_usa67_send_setup(struct usb_serial *serial, 2619 struct usb_serial_port *port, 2620 int reset_port) 2621{ 2622 struct keyspan_usa67_portControlMessage msg; 2623 struct keyspan_serial_private *s_priv; 2624 struct keyspan_port_private *p_priv; 2625 const struct keyspan_device_details *d_details; 2626 struct urb *this_urb; 2627 int err, device_port; 2628 2629 s_priv = usb_get_serial_data(serial); 2630 p_priv = usb_get_serial_port_data(port); 2631 d_details = s_priv->device_details; 2632 2633 this_urb = s_priv->glocont_urb; 2634 2635 /* Work out which port within the device is being setup */ 2636 device_port = port->port_number; 2637 2638 /* Make sure we have an urb then send the message */ 2639 if (this_urb == NULL) { 2640 dev_dbg(&port->dev, "%s - oops no urb for port.\n", __func__); 2641 return -1; 2642 } 2643 2644 /* Save reset port val for resend. 2645 Don't overwrite resend for open/close condition. */ 2646 if ((reset_port + 1) > p_priv->resend_cont) 2647 p_priv->resend_cont = reset_port + 1; 2648 if (this_urb->status == -EINPROGRESS) { 2649 /* dev_dbg(&port->dev, "%s - already writing\n", __func__); */ 2650 mdelay(5); 2651 return -1; 2652 } 2653 2654 memset(&msg, 0, sizeof(struct keyspan_usa67_portControlMessage)); 2655 2656 msg.port = device_port; 2657 2658 /* Only set baud rate if it's changed */ 2659 if (p_priv->old_baud != p_priv->baud) { 2660 p_priv->old_baud = p_priv->baud; 2661 msg.setClocking = 0xff; 2662 if (d_details->calculate_baud_rate(port, p_priv->baud, d_details->baudclk, 2663 &msg.baudHi, &msg.baudLo, &msg.prescaler, 2664 device_port) == KEYSPAN_INVALID_BAUD_RATE) { 2665 dev_dbg(&port->dev, "%s - Invalid baud rate %d requested, using 9600.\n", 2666 __func__, p_priv->baud); 2667 msg.baudLo = 0; 2668 msg.baudHi = 125; /* Values for 9600 baud */ 2669 msg.prescaler = 10; 2670 } 2671 msg.setPrescaler = 0xff; 2672 } 2673 2674 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1; 2675 switch (p_priv->cflag & CSIZE) { 2676 case CS5: 2677 msg.lcr |= USA_DATABITS_5; 2678 break; 2679 case CS6: 2680 msg.lcr |= USA_DATABITS_6; 2681 break; 2682 case CS7: 2683 msg.lcr |= USA_DATABITS_7; 2684 break; 2685 case CS8: 2686 msg.lcr |= USA_DATABITS_8; 2687 break; 2688 } 2689 if (p_priv->cflag & PARENB) { 2690 /* note USA_PARITY_NONE == 0 */ 2691 msg.lcr |= (p_priv->cflag & PARODD) ? 2692 USA_PARITY_ODD : USA_PARITY_EVEN; 2693 } 2694 msg.setLcr = 0xff; 2695 2696 msg.ctsFlowControl = (p_priv->flow_control == flow_cts); 2697 msg.xonFlowControl = 0; 2698 msg.setFlowControl = 0xff; 2699 msg.forwardingLength = 16; 2700 msg.xonChar = 17; 2701 msg.xoffChar = 19; 2702 2703 if (reset_port == 1) { 2704 /* Opening port */ 2705 msg._txOn = 1; 2706 msg._txOff = 0; 2707 msg.txFlush = 0; 2708 msg.txBreak = 0; 2709 msg.rxOn = 1; 2710 msg.rxOff = 0; 2711 msg.rxFlush = 1; 2712 msg.rxForward = 0; 2713 msg.returnStatus = 0; 2714 msg.resetDataToggle = 0xff; 2715 } else if (reset_port == 2) { 2716 /* Closing port */ 2717 msg._txOn = 0; 2718 msg._txOff = 1; 2719 msg.txFlush = 0; 2720 msg.txBreak = 0; 2721 msg.rxOn = 0; 2722 msg.rxOff = 1; 2723 msg.rxFlush = 1; 2724 msg.rxForward = 0; 2725 msg.returnStatus = 0; 2726 msg.resetDataToggle = 0; 2727 } else { 2728 /* Sending intermediate configs */ 2729 msg._txOn = (!p_priv->break_on); 2730 msg._txOff = 0; 2731 msg.txFlush = 0; 2732 msg.txBreak = (p_priv->break_on); 2733 msg.rxOn = 0; 2734 msg.rxOff = 0; 2735 msg.rxFlush = 0; 2736 msg.rxForward = 0; 2737 msg.returnStatus = 0; 2738 msg.resetDataToggle = 0x0; 2739 } 2740 2741 /* Do handshaking outputs */ 2742 msg.setTxTriState_setRts = 0xff; 2743 msg.txTriState_rts = p_priv->rts_state; 2744 2745 msg.setHskoa_setDtr = 0xff; 2746 msg.hskoa_dtr = p_priv->dtr_state; 2747 2748 p_priv->resend_cont = 0; 2749 2750 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg)); 2751 2752 /* send the data out the device on control endpoint */ 2753 this_urb->transfer_buffer_length = sizeof(msg); 2754 2755 err = usb_submit_urb(this_urb, GFP_ATOMIC); 2756 if (err != 0) 2757 dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err); 2758 return 0; 2759} 2760 2761static void keyspan_send_setup(struct usb_serial_port *port, int reset_port) 2762{ 2763 struct usb_serial *serial = port->serial; 2764 struct keyspan_serial_private *s_priv; 2765 const struct keyspan_device_details *d_details; 2766 2767 s_priv = usb_get_serial_data(serial); 2768 d_details = s_priv->device_details; 2769 2770 switch (d_details->msg_format) { 2771 case msg_usa26: 2772 keyspan_usa26_send_setup(serial, port, reset_port); 2773 break; 2774 case msg_usa28: 2775 keyspan_usa28_send_setup(serial, port, reset_port); 2776 break; 2777 case msg_usa49: 2778 keyspan_usa49_send_setup(serial, port, reset_port); 2779 break; 2780 case msg_usa90: 2781 keyspan_usa90_send_setup(serial, port, reset_port); 2782 break; 2783 case msg_usa67: 2784 keyspan_usa67_send_setup(serial, port, reset_port); 2785 break; 2786 } 2787} 2788 2789 2790/* Gets called by the "real" driver (ie once firmware is loaded 2791 and renumeration has taken place. */ 2792static int keyspan_startup(struct usb_serial *serial) 2793{ 2794 int i, err; 2795 struct keyspan_serial_private *s_priv; 2796 const struct keyspan_device_details *d_details; 2797 2798 for (i = 0; (d_details = keyspan_devices[i]) != NULL; ++i) 2799 if (d_details->product_id == 2800 le16_to_cpu(serial->dev->descriptor.idProduct)) 2801 break; 2802 if (d_details == NULL) { 2803 dev_err(&serial->dev->dev, "%s - unknown product id %x\n", 2804 __func__, le16_to_cpu(serial->dev->descriptor.idProduct)); 2805 return -ENODEV; 2806 } 2807 2808 /* Setup private data for serial driver */ 2809 s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL); 2810 if (!s_priv) 2811 return -ENOMEM; 2812 2813 s_priv->instat_buf = kzalloc(INSTAT_BUFLEN, GFP_KERNEL); 2814 if (!s_priv->instat_buf) 2815 goto err_instat_buf; 2816 2817 s_priv->indat_buf = kzalloc(INDAT49W_BUFLEN, GFP_KERNEL); 2818 if (!s_priv->indat_buf) 2819 goto err_indat_buf; 2820 2821 s_priv->glocont_buf = kzalloc(GLOCONT_BUFLEN, GFP_KERNEL); 2822 if (!s_priv->glocont_buf) 2823 goto err_glocont_buf; 2824 2825 s_priv->ctrl_buf = kzalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL); 2826 if (!s_priv->ctrl_buf) 2827 goto err_ctrl_buf; 2828 2829 s_priv->device_details = d_details; 2830 usb_set_serial_data(serial, s_priv); 2831 2832 keyspan_setup_urbs(serial); 2833 2834 if (s_priv->instat_urb != NULL) { 2835 err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL); 2836 if (err != 0) 2837 dev_dbg(&serial->dev->dev, "%s - submit instat urb failed %d\n", __func__, err); 2838 } 2839 if (s_priv->indat_urb != NULL) { 2840 err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL); 2841 if (err != 0) 2842 dev_dbg(&serial->dev->dev, "%s - submit indat urb failed %d\n", __func__, err); 2843 } 2844 2845 return 0; 2846 2847err_ctrl_buf: 2848 kfree(s_priv->glocont_buf); 2849err_glocont_buf: 2850 kfree(s_priv->indat_buf); 2851err_indat_buf: 2852 kfree(s_priv->instat_buf); 2853err_instat_buf: 2854 kfree(s_priv); 2855 2856 return -ENOMEM; 2857} 2858 2859static void keyspan_disconnect(struct usb_serial *serial) 2860{ 2861 struct keyspan_serial_private *s_priv; 2862 2863 s_priv = usb_get_serial_data(serial); 2864 2865 usb_kill_urb(s_priv->instat_urb); 2866 usb_kill_urb(s_priv->glocont_urb); 2867 usb_kill_urb(s_priv->indat_urb); 2868} 2869 2870static void keyspan_release(struct usb_serial *serial) 2871{ 2872 struct keyspan_serial_private *s_priv; 2873 2874 s_priv = usb_get_serial_data(serial); 2875 2876 /* Make sure to unlink the URBs submitted in attach. */ 2877 usb_kill_urb(s_priv->instat_urb); 2878 usb_kill_urb(s_priv->indat_urb); 2879 2880 usb_free_urb(s_priv->instat_urb); 2881 usb_free_urb(s_priv->indat_urb); 2882 usb_free_urb(s_priv->glocont_urb); 2883 2884 kfree(s_priv->ctrl_buf); 2885 kfree(s_priv->glocont_buf); 2886 kfree(s_priv->indat_buf); 2887 kfree(s_priv->instat_buf); 2888 2889 kfree(s_priv); 2890} 2891 2892static int keyspan_port_probe(struct usb_serial_port *port) 2893{ 2894 struct usb_serial *serial = port->serial; 2895 struct keyspan_serial_private *s_priv; 2896 struct keyspan_port_private *p_priv; 2897 const struct keyspan_device_details *d_details; 2898 struct callbacks *cback; 2899 int endp; 2900 int port_num; 2901 int i; 2902 2903 s_priv = usb_get_serial_data(serial); 2904 d_details = s_priv->device_details; 2905 2906 p_priv = kzalloc(sizeof(*p_priv), GFP_KERNEL); 2907 if (!p_priv) 2908 return -ENOMEM; 2909 2910 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i) { 2911 p_priv->in_buffer[i] = kzalloc(IN_BUFLEN, GFP_KERNEL); 2912 if (!p_priv->in_buffer[i]) 2913 goto err_free_in_buffer; 2914 } 2915 2916 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i) { 2917 p_priv->out_buffer[i] = kzalloc(OUT_BUFLEN, GFP_KERNEL); 2918 if (!p_priv->out_buffer[i]) 2919 goto err_free_out_buffer; 2920 } 2921 2922 p_priv->inack_buffer = kzalloc(INACK_BUFLEN, GFP_KERNEL); 2923 if (!p_priv->inack_buffer) 2924 goto err_free_out_buffer; 2925 2926 p_priv->outcont_buffer = kzalloc(OUTCONT_BUFLEN, GFP_KERNEL); 2927 if (!p_priv->outcont_buffer) 2928 goto err_free_inack_buffer; 2929 2930 p_priv->device_details = d_details; 2931 2932 /* Setup values for the various callback routines */ 2933 cback = &keyspan_callbacks[d_details->msg_format]; 2934 2935 port_num = port->port_number; 2936 2937 /* Do indat endpoints first, once for each flip */ 2938 endp = d_details->indat_endpoints[port_num]; 2939 for (i = 0; i <= d_details->indat_endp_flip; ++i, ++endp) { 2940 p_priv->in_urbs[i] = keyspan_setup_urb(serial, endp, 2941 USB_DIR_IN, port, 2942 p_priv->in_buffer[i], 2943 IN_BUFLEN, 2944 cback->indat_callback); 2945 } 2946 /* outdat endpoints also have flip */ 2947 endp = d_details->outdat_endpoints[port_num]; 2948 for (i = 0; i <= d_details->outdat_endp_flip; ++i, ++endp) { 2949 p_priv->out_urbs[i] = keyspan_setup_urb(serial, endp, 2950 USB_DIR_OUT, port, 2951 p_priv->out_buffer[i], 2952 OUT_BUFLEN, 2953 cback->outdat_callback); 2954 } 2955 /* inack endpoint */ 2956 p_priv->inack_urb = keyspan_setup_urb(serial, 2957 d_details->inack_endpoints[port_num], 2958 USB_DIR_IN, port, 2959 p_priv->inack_buffer, 2960 INACK_BUFLEN, 2961 cback->inack_callback); 2962 /* outcont endpoint */ 2963 p_priv->outcont_urb = keyspan_setup_urb(serial, 2964 d_details->outcont_endpoints[port_num], 2965 USB_DIR_OUT, port, 2966 p_priv->outcont_buffer, 2967 OUTCONT_BUFLEN, 2968 cback->outcont_callback); 2969 2970 usb_set_serial_port_data(port, p_priv); 2971 2972 return 0; 2973 2974err_free_inack_buffer: 2975 kfree(p_priv->inack_buffer); 2976err_free_out_buffer: 2977 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i) 2978 kfree(p_priv->out_buffer[i]); 2979err_free_in_buffer: 2980 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i) 2981 kfree(p_priv->in_buffer[i]); 2982 kfree(p_priv); 2983 2984 return -ENOMEM; 2985} 2986 2987static int keyspan_port_remove(struct usb_serial_port *port) 2988{ 2989 struct keyspan_port_private *p_priv; 2990 int i; 2991 2992 p_priv = usb_get_serial_port_data(port); 2993 2994 usb_kill_urb(p_priv->inack_urb); 2995 usb_kill_urb(p_priv->outcont_urb); 2996 for (i = 0; i < 2; i++) { 2997 usb_kill_urb(p_priv->in_urbs[i]); 2998 usb_kill_urb(p_priv->out_urbs[i]); 2999 } 3000 3001 usb_free_urb(p_priv->inack_urb); 3002 usb_free_urb(p_priv->outcont_urb); 3003 for (i = 0; i < 2; i++) { 3004 usb_free_urb(p_priv->in_urbs[i]); 3005 usb_free_urb(p_priv->out_urbs[i]); 3006 } 3007 3008 kfree(p_priv->outcont_buffer); 3009 kfree(p_priv->inack_buffer); 3010 for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i) 3011 kfree(p_priv->out_buffer[i]); 3012 for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i) 3013 kfree(p_priv->in_buffer[i]); 3014 3015 kfree(p_priv); 3016 3017 return 0; 3018} 3019 3020/* Structs for the devices, pre and post renumeration. */ 3021static struct usb_serial_driver keyspan_pre_device = { 3022 .driver = { 3023 .owner = THIS_MODULE, 3024 .name = "keyspan_no_firm", 3025 }, 3026 .description = "Keyspan - (without firmware)", 3027 .id_table = keyspan_pre_ids, 3028 .num_ports = 1, 3029 .attach = keyspan_fake_startup, 3030}; 3031 3032static struct usb_serial_driver keyspan_1port_device = { 3033 .driver = { 3034 .owner = THIS_MODULE, 3035 .name = "keyspan_1", 3036 }, 3037 .description = "Keyspan 1 port adapter", 3038 .id_table = keyspan_1port_ids, 3039 .num_ports = 1, 3040 .open = keyspan_open, 3041 .close = keyspan_close, 3042 .dtr_rts = keyspan_dtr_rts, 3043 .write = keyspan_write, 3044 .write_room = keyspan_write_room, 3045 .set_termios = keyspan_set_termios, 3046 .break_ctl = keyspan_break_ctl, 3047 .tiocmget = keyspan_tiocmget, 3048 .tiocmset = keyspan_tiocmset, 3049 .attach = keyspan_startup, 3050 .disconnect = keyspan_disconnect, 3051 .release = keyspan_release, 3052 .port_probe = keyspan_port_probe, 3053 .port_remove = keyspan_port_remove, 3054}; 3055 3056static struct usb_serial_driver keyspan_2port_device = { 3057 .driver = { 3058 .owner = THIS_MODULE, 3059 .name = "keyspan_2", 3060 }, 3061 .description = "Keyspan 2 port adapter", 3062 .id_table = keyspan_2port_ids, 3063 .num_ports = 2, 3064 .open = keyspan_open, 3065 .close = keyspan_close, 3066 .dtr_rts = keyspan_dtr_rts, 3067 .write = keyspan_write, 3068 .write_room = keyspan_write_room, 3069 .set_termios = keyspan_set_termios, 3070 .break_ctl = keyspan_break_ctl, 3071 .tiocmget = keyspan_tiocmget, 3072 .tiocmset = keyspan_tiocmset, 3073 .attach = keyspan_startup, 3074 .disconnect = keyspan_disconnect, 3075 .release = keyspan_release, 3076 .port_probe = keyspan_port_probe, 3077 .port_remove = keyspan_port_remove, 3078}; 3079 3080static struct usb_serial_driver keyspan_4port_device = { 3081 .driver = { 3082 .owner = THIS_MODULE, 3083 .name = "keyspan_4", 3084 }, 3085 .description = "Keyspan 4 port adapter", 3086 .id_table = keyspan_4port_ids, 3087 .num_ports = 4, 3088 .open = keyspan_open, 3089 .close = keyspan_close, 3090 .dtr_rts = keyspan_dtr_rts, 3091 .write = keyspan_write, 3092 .write_room = keyspan_write_room, 3093 .set_termios = keyspan_set_termios, 3094 .break_ctl = keyspan_break_ctl, 3095 .tiocmget = keyspan_tiocmget, 3096 .tiocmset = keyspan_tiocmset, 3097 .attach = keyspan_startup, 3098 .disconnect = keyspan_disconnect, 3099 .release = keyspan_release, 3100 .port_probe = keyspan_port_probe, 3101 .port_remove = keyspan_port_remove, 3102}; 3103 3104static struct usb_serial_driver * const serial_drivers[] = { 3105 &keyspan_pre_device, &keyspan_1port_device, 3106 &keyspan_2port_device, &keyspan_4port_device, NULL 3107}; 3108 3109module_usb_serial_driver(serial_drivers, keyspan_ids_combined); 3110 3111MODULE_AUTHOR(DRIVER_AUTHOR); 3112MODULE_DESCRIPTION(DRIVER_DESC); 3113MODULE_LICENSE("GPL"); 3114 3115MODULE_FIRMWARE("keyspan/usa28.fw"); 3116MODULE_FIRMWARE("keyspan/usa28x.fw"); 3117MODULE_FIRMWARE("keyspan/usa28xa.fw"); 3118MODULE_FIRMWARE("keyspan/usa28xb.fw"); 3119MODULE_FIRMWARE("keyspan/usa19.fw"); 3120MODULE_FIRMWARE("keyspan/usa19qi.fw"); 3121MODULE_FIRMWARE("keyspan/mpr.fw"); 3122MODULE_FIRMWARE("keyspan/usa19qw.fw"); 3123MODULE_FIRMWARE("keyspan/usa18x.fw"); 3124MODULE_FIRMWARE("keyspan/usa19w.fw"); 3125MODULE_FIRMWARE("keyspan/usa49w.fw"); 3126MODULE_FIRMWARE("keyspan/usa49wlc.fw"); 3127