1 /* 2 * Infinity Unlimited USB Phoenix driver 3 * 4 * Copyright (C) 2007 Alain Degreffe (eczema@ecze.com) 5 * 6 * Original code taken from iuutool (Copyright (C) 2006 Juan Carlos Borrás) 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * And tested with help of WB Electronics 14 * 15 */ 16 #include <linux/kernel.h> 17 #include <linux/errno.h> 18 #include <linux/init.h> 19 #include <linux/slab.h> 20 #include <linux/tty.h> 21 #include <linux/tty_driver.h> 22 #include <linux/tty_flip.h> 23 #include <linux/serial.h> 24 #include <linux/module.h> 25 #include <linux/moduleparam.h> 26 #include <linux/spinlock.h> 27 #include <linux/uaccess.h> 28 #include <linux/usb.h> 29 #include <linux/usb/serial.h> 30 #include "iuu_phoenix.h" 31 #include <linux/random.h> 32 33 34 #ifdef CONFIG_USB_SERIAL_DEBUG 35 static int debug = 1; 36 #else 37 static int debug; 38 #endif 39 40 /* 41 * Version Information 42 */ 43 #define DRIVER_VERSION "v0.10" 44 #define DRIVER_DESC "Infinity USB Unlimited Phoenix driver" 45 46 static struct usb_device_id id_table[] = { 47 {USB_DEVICE(IUU_USB_VENDOR_ID, IUU_USB_PRODUCT_ID)}, 48 {} /* Terminating entry */ 49 }; 50 MODULE_DEVICE_TABLE(usb, id_table); 51 52 static struct usb_driver iuu_driver = { 53 .name = "iuu_phoenix", 54 .probe = usb_serial_probe, 55 .disconnect = usb_serial_disconnect, 56 .id_table = id_table, 57 .no_dynamic_id = 1, 58 }; 59 60 /* turbo parameter */ 61 static int boost = 100; 62 static int clockmode = 1; 63 static int cdmode = 1; 64 static int iuu_cardin; 65 static int iuu_cardout; 66 static int xmas; 67 68 static void read_rxcmd_callback(struct urb *urb); 69 70 struct iuu_private { 71 spinlock_t lock; /* store irq state */ 72 wait_queue_head_t delta_msr_wait; 73 u8 line_status; 74 int tiostatus; /* store IUART SIGNAL for tiocmget call */ 75 u8 reset; /* if 1 reset is needed */ 76 int poll; /* number of poll */ 77 u8 *writebuf; /* buffer for writing to device */ 78 int writelen; /* num of byte to write to device */ 79 u8 *buf; /* used for initialize speed */ 80 u8 *dbgbuf; /* debug buffer */ 81 u8 len; 82 }; 83 84 85 static void iuu_free_buf(struct iuu_private *priv) 86 { 87 kfree(priv->buf); 88 kfree(priv->dbgbuf); 89 kfree(priv->writebuf); 90 } 91 92 static int iuu_alloc_buf(struct iuu_private *priv) 93 { 94 priv->buf = kzalloc(256, GFP_KERNEL); 95 priv->dbgbuf = kzalloc(256, GFP_KERNEL); 96 priv->writebuf = kzalloc(256, GFP_KERNEL); 97 if (!priv->buf || !priv->dbgbuf || !priv->writebuf) { 98 iuu_free_buf(priv); 99 dbg("%s problem allocation buffer", __func__); 100 return -ENOMEM; 101 } 102 dbg("%s - Privates buffers allocation success", __func__); 103 return 0; 104 } 105 106 static int iuu_startup(struct usb_serial *serial) 107 { 108 struct iuu_private *priv; 109 priv = kzalloc(sizeof(struct iuu_private), GFP_KERNEL); 110 dbg("%s- priv allocation success", __func__); 111 if (!priv) 112 return -ENOMEM; 113 if (iuu_alloc_buf(priv)) { 114 kfree(priv); 115 return -ENOMEM; 116 } 117 spin_lock_init(&priv->lock); 118 init_waitqueue_head(&priv->delta_msr_wait); 119 usb_set_serial_port_data(serial->port[0], priv); 120 return 0; 121 } 122 123 /* Release function */ 124 static void iuu_release(struct usb_serial *serial) 125 { 126 struct usb_serial_port *port = serial->port[0]; 127 struct iuu_private *priv = usb_get_serial_port_data(port); 128 if (!port) 129 return; 130 131 dbg("%s", __func__); 132 133 if (priv) { 134 iuu_free_buf(priv); 135 dbg("%s - I will free all", __func__); 136 usb_set_serial_port_data(port, NULL); 137 138 dbg("%s - priv is not anymore in port structure", __func__); 139 kfree(priv); 140 141 dbg("%s priv is now kfree", __func__); 142 } 143 } 144 145 static int iuu_tiocmset(struct tty_struct *tty, struct file *file, 146 unsigned int set, unsigned int clear) 147 { 148 struct usb_serial_port *port = tty->driver_data; 149 struct iuu_private *priv = usb_get_serial_port_data(port); 150 unsigned long flags; 151 152 /* FIXME: locking on tiomstatus */ 153 dbg("%s (%d) msg : SET = 0x%04x, CLEAR = 0x%04x ", __func__, 154 port->number, set, clear); 155 156 spin_lock_irqsave(&priv->lock, flags); 157 if (set & TIOCM_RTS) 158 priv->tiostatus = TIOCM_RTS; 159 160 if (!(set & TIOCM_RTS) && priv->tiostatus == TIOCM_RTS) { 161 dbg("%s TIOCMSET RESET called !!!", __func__); 162 priv->reset = 1; 163 } 164 spin_unlock_irqrestore(&priv->lock, flags); 165 return 0; 166 } 167 168 /* This is used to provide a carrier detect mechanism 169 * When a card is present, the response is 0x00 170 * When no card , the reader respond with TIOCM_CD 171 * This is known as CD autodetect mechanism 172 */ 173 static int iuu_tiocmget(struct tty_struct *tty, struct file *file) 174 { 175 struct usb_serial_port *port = tty->driver_data; 176 struct iuu_private *priv = usb_get_serial_port_data(port); 177 unsigned long flags; 178 int rc; 179 180 spin_lock_irqsave(&priv->lock, flags); 181 rc = priv->tiostatus; 182 spin_unlock_irqrestore(&priv->lock, flags); 183 184 return rc; 185 } 186 187 static void iuu_rxcmd(struct urb *urb) 188 { 189 struct usb_serial_port *port = urb->context; 190 int result; 191 int status = urb->status; 192 193 dbg("%s - enter", __func__); 194 195 if (status) { 196 dbg("%s - status = %d", __func__, status); 197 /* error stop all */ 198 return; 199 } 200 201 202 memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1); 203 usb_fill_bulk_urb(port->write_urb, port->serial->dev, 204 usb_sndbulkpipe(port->serial->dev, 205 port->bulk_out_endpointAddress), 206 port->write_urb->transfer_buffer, 1, 207 read_rxcmd_callback, port); 208 result = usb_submit_urb(port->write_urb, GFP_ATOMIC); 209 } 210 211 static int iuu_reset(struct usb_serial_port *port, u8 wt) 212 { 213 struct iuu_private *priv = usb_get_serial_port_data(port); 214 int result; 215 char *buf_ptr = port->write_urb->transfer_buffer; 216 dbg("%s - enter", __func__); 217 218 /* Prepare the reset sequence */ 219 220 *buf_ptr++ = IUU_RST_SET; 221 *buf_ptr++ = IUU_DELAY_MS; 222 *buf_ptr++ = wt; 223 *buf_ptr = IUU_RST_CLEAR; 224 225 /* send the sequence */ 226 227 usb_fill_bulk_urb(port->write_urb, 228 port->serial->dev, 229 usb_sndbulkpipe(port->serial->dev, 230 port->bulk_out_endpointAddress), 231 port->write_urb->transfer_buffer, 4, iuu_rxcmd, port); 232 result = usb_submit_urb(port->write_urb, GFP_ATOMIC); 233 priv->reset = 0; 234 return result; 235 } 236 237 /* Status Function 238 * Return value is 239 * 0x00 = no card 240 * 0x01 = smartcard 241 * 0x02 = sim card 242 */ 243 static void iuu_update_status_callback(struct urb *urb) 244 { 245 struct usb_serial_port *port = urb->context; 246 struct iuu_private *priv = usb_get_serial_port_data(port); 247 u8 *st; 248 int status = urb->status; 249 250 dbg("%s - enter", __func__); 251 252 if (status) { 253 dbg("%s - status = %d", __func__, status); 254 /* error stop all */ 255 return; 256 } 257 258 st = urb->transfer_buffer; 259 dbg("%s - enter", __func__); 260 if (urb->actual_length == 1) { 261 switch (st[0]) { 262 case 0x1: 263 priv->tiostatus = iuu_cardout; 264 break; 265 case 0x0: 266 priv->tiostatus = iuu_cardin; 267 break; 268 default: 269 priv->tiostatus = iuu_cardin; 270 } 271 } 272 iuu_rxcmd(urb); 273 } 274 275 static void iuu_status_callback(struct urb *urb) 276 { 277 struct usb_serial_port *port = urb->context; 278 int result; 279 int status = urb->status; 280 281 dbg("%s - status = %d", __func__, status); 282 usb_fill_bulk_urb(port->read_urb, port->serial->dev, 283 usb_rcvbulkpipe(port->serial->dev, 284 port->bulk_in_endpointAddress), 285 port->read_urb->transfer_buffer, 256, 286 iuu_update_status_callback, port); 287 result = usb_submit_urb(port->read_urb, GFP_ATOMIC); 288 } 289 290 static int iuu_status(struct usb_serial_port *port) 291 { 292 int result; 293 294 dbg("%s - enter", __func__); 295 296 memset(port->write_urb->transfer_buffer, IUU_GET_STATE_REGISTER, 1); 297 usb_fill_bulk_urb(port->write_urb, port->serial->dev, 298 usb_sndbulkpipe(port->serial->dev, 299 port->bulk_out_endpointAddress), 300 port->write_urb->transfer_buffer, 1, 301 iuu_status_callback, port); 302 result = usb_submit_urb(port->write_urb, GFP_ATOMIC); 303 return result; 304 305 } 306 307 static int bulk_immediate(struct usb_serial_port *port, u8 *buf, u8 count) 308 { 309 int status; 310 struct usb_serial *serial = port->serial; 311 int actual = 0; 312 313 dbg("%s - enter", __func__); 314 315 /* send the data out the bulk port */ 316 317 status = 318 usb_bulk_msg(serial->dev, 319 usb_sndbulkpipe(serial->dev, 320 port->bulk_out_endpointAddress), buf, 321 count, &actual, HZ * 1); 322 323 if (status != IUU_OPERATION_OK) 324 dbg("%s - error = %2x", __func__, status); 325 else 326 dbg("%s - write OK !", __func__); 327 return status; 328 } 329 330 static int read_immediate(struct usb_serial_port *port, u8 *buf, u8 count) 331 { 332 int status; 333 struct usb_serial *serial = port->serial; 334 int actual = 0; 335 336 dbg("%s - enter", __func__); 337 338 /* send the data out the bulk port */ 339 340 status = 341 usb_bulk_msg(serial->dev, 342 usb_rcvbulkpipe(serial->dev, 343 port->bulk_in_endpointAddress), buf, 344 count, &actual, HZ * 1); 345 346 if (status != IUU_OPERATION_OK) 347 dbg("%s - error = %2x", __func__, status); 348 else 349 dbg("%s - read OK !", __func__); 350 return status; 351 } 352 353 static int iuu_led(struct usb_serial_port *port, unsigned int R, 354 unsigned int G, unsigned int B, u8 f) 355 { 356 int status; 357 u8 *buf; 358 buf = kmalloc(8, GFP_KERNEL); 359 if (!buf) 360 return -ENOMEM; 361 362 dbg("%s - enter", __func__); 363 364 buf[0] = IUU_SET_LED; 365 buf[1] = R & 0xFF; 366 buf[2] = (R >> 8) & 0xFF; 367 buf[3] = G & 0xFF; 368 buf[4] = (G >> 8) & 0xFF; 369 buf[5] = B & 0xFF; 370 buf[6] = (B >> 8) & 0xFF; 371 buf[7] = f; 372 status = bulk_immediate(port, buf, 8); 373 kfree(buf); 374 if (status != IUU_OPERATION_OK) 375 dbg("%s - led error status = %2x", __func__, status); 376 else 377 dbg("%s - led OK !", __func__); 378 return IUU_OPERATION_OK; 379 } 380 381 static void iuu_rgbf_fill_buffer(u8 *buf, u8 r1, u8 r2, u8 g1, u8 g2, u8 b1, 382 u8 b2, u8 freq) 383 { 384 *buf++ = IUU_SET_LED; 385 *buf++ = r1; 386 *buf++ = r2; 387 *buf++ = g1; 388 *buf++ = g2; 389 *buf++ = b1; 390 *buf++ = b2; 391 *buf = freq; 392 } 393 394 static void iuu_led_activity_on(struct urb *urb) 395 { 396 struct usb_serial_port *port = urb->context; 397 int result; 398 char *buf_ptr = port->write_urb->transfer_buffer; 399 *buf_ptr++ = IUU_SET_LED; 400 if (xmas == 1) { 401 get_random_bytes(buf_ptr, 6); 402 *(buf_ptr+7) = 1; 403 } else { 404 iuu_rgbf_fill_buffer(buf_ptr, 255, 255, 0, 0, 0, 0, 255); 405 } 406 407 usb_fill_bulk_urb(port->write_urb, port->serial->dev, 408 usb_sndbulkpipe(port->serial->dev, 409 port->bulk_out_endpointAddress), 410 port->write_urb->transfer_buffer, 8 , 411 iuu_rxcmd, port); 412 result = usb_submit_urb(port->write_urb, GFP_ATOMIC); 413 } 414 415 static void iuu_led_activity_off(struct urb *urb) 416 { 417 struct usb_serial_port *port = urb->context; 418 int result; 419 char *buf_ptr = port->write_urb->transfer_buffer; 420 if (xmas == 1) { 421 iuu_rxcmd(urb); 422 return; 423 } else { 424 *buf_ptr++ = IUU_SET_LED; 425 iuu_rgbf_fill_buffer(buf_ptr, 0, 0, 255, 255, 0, 0, 255); 426 } 427 usb_fill_bulk_urb(port->write_urb, port->serial->dev, 428 usb_sndbulkpipe(port->serial->dev, 429 port->bulk_out_endpointAddress), 430 port->write_urb->transfer_buffer, 8 , 431 iuu_rxcmd, port); 432 result = usb_submit_urb(port->write_urb, GFP_ATOMIC); 433 } 434 435 436 437 static int iuu_clk(struct usb_serial_port *port, int dwFrq) 438 { 439 int status; 440 struct iuu_private *priv = usb_get_serial_port_data(port); 441 int Count = 0; 442 u8 FrqGenAdr = 0x69; 443 u8 DIV = 0; /* 8bit */ 444 u8 XDRV = 0; /* 8bit */ 445 u8 PUMP = 0; /* 3bit */ 446 u8 PBmsb = 0; /* 2bit */ 447 u8 PBlsb = 0; /* 8bit */ 448 u8 PO = 0; /* 1bit */ 449 u8 Q = 0; /* 7bit */ 450 /* 24bit = 3bytes */ 451 unsigned int P = 0; 452 unsigned int P2 = 0; 453 int frq = (int)dwFrq; 454 455 dbg("%s - enter", __func__); 456 457 if (frq == 0) { 458 priv->buf[Count++] = IUU_UART_WRITE_I2C; 459 priv->buf[Count++] = FrqGenAdr << 1; 460 priv->buf[Count++] = 0x09; 461 priv->buf[Count++] = 0x00; 462 463 status = bulk_immediate(port, (u8 *) priv->buf, Count); 464 if (status != 0) { 465 dbg("%s - write error ", __func__); 466 return status; 467 } 468 } else if (frq == 3579000) { 469 DIV = 100; 470 P = 1193; 471 Q = 40; 472 XDRV = 0; 473 } else if (frq == 3680000) { 474 DIV = 105; 475 P = 161; 476 Q = 5; 477 XDRV = 0; 478 } else if (frq == 6000000) { 479 DIV = 66; 480 P = 66; 481 Q = 2; 482 XDRV = 0x28; 483 } else { 484 unsigned int result = 0; 485 unsigned int tmp = 0; 486 unsigned int check; 487 unsigned int check2; 488 char found = 0x00; 489 unsigned int lQ = 2; 490 unsigned int lP = 2055; 491 unsigned int lDiv = 4; 492 493 for (lQ = 2; lQ <= 47 && !found; lQ++) 494 for (lP = 2055; lP >= 8 && !found; lP--) 495 for (lDiv = 4; lDiv <= 127 && !found; lDiv++) { 496 tmp = (12000000 / lDiv) * (lP / lQ); 497 if (abs((int)(tmp - frq)) < 498 abs((int)(frq - result))) { 499 check2 = (12000000 / lQ); 500 if (check2 < 250000) 501 continue; 502 check = (12000000 / lQ) * lP; 503 if (check > 400000000) 504 continue; 505 if (check < 100000000) 506 continue; 507 if (lDiv < 4 || lDiv > 127) 508 continue; 509 result = tmp; 510 P = lP; 511 DIV = lDiv; 512 Q = lQ; 513 if (result == frq) 514 found = 0x01; 515 } 516 } 517 } 518 P2 = ((P - PO) / 2) - 4; 519 DIV = DIV; 520 PUMP = 0x04; 521 PBmsb = (P2 >> 8 & 0x03); 522 PBlsb = P2 & 0xFF; 523 PO = (P >> 10) & 0x01; 524 Q = Q - 2; 525 526 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ 527 priv->buf[Count++] = FrqGenAdr << 1; 528 priv->buf[Count++] = 0x09; 529 priv->buf[Count++] = 0x20; /* Adr = 0x09 */ 530 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ 531 priv->buf[Count++] = FrqGenAdr << 1; 532 priv->buf[Count++] = 0x0C; 533 priv->buf[Count++] = DIV; /* Adr = 0x0C */ 534 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ 535 priv->buf[Count++] = FrqGenAdr << 1; 536 priv->buf[Count++] = 0x12; 537 priv->buf[Count++] = XDRV; /* Adr = 0x12 */ 538 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ 539 priv->buf[Count++] = FrqGenAdr << 1; 540 priv->buf[Count++] = 0x13; 541 priv->buf[Count++] = 0x6B; /* Adr = 0x13 */ 542 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ 543 priv->buf[Count++] = FrqGenAdr << 1; 544 priv->buf[Count++] = 0x40; 545 priv->buf[Count++] = (0xC0 | ((PUMP & 0x07) << 2)) | 546 (PBmsb & 0x03); /* Adr = 0x40 */ 547 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ 548 priv->buf[Count++] = FrqGenAdr << 1; 549 priv->buf[Count++] = 0x41; 550 priv->buf[Count++] = PBlsb; /* Adr = 0x41 */ 551 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ 552 priv->buf[Count++] = FrqGenAdr << 1; 553 priv->buf[Count++] = 0x42; 554 priv->buf[Count++] = Q | (((PO & 0x01) << 7)); /* Adr = 0x42 */ 555 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ 556 priv->buf[Count++] = FrqGenAdr << 1; 557 priv->buf[Count++] = 0x44; 558 priv->buf[Count++] = (char)0xFF; /* Adr = 0x44 */ 559 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ 560 priv->buf[Count++] = FrqGenAdr << 1; 561 priv->buf[Count++] = 0x45; 562 priv->buf[Count++] = (char)0xFE; /* Adr = 0x45 */ 563 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ 564 priv->buf[Count++] = FrqGenAdr << 1; 565 priv->buf[Count++] = 0x46; 566 priv->buf[Count++] = 0x7F; /* Adr = 0x46 */ 567 priv->buf[Count++] = IUU_UART_WRITE_I2C; /* 0x4C */ 568 priv->buf[Count++] = FrqGenAdr << 1; 569 priv->buf[Count++] = 0x47; 570 priv->buf[Count++] = (char)0x84; /* Adr = 0x47 */ 571 572 status = bulk_immediate(port, (u8 *) priv->buf, Count); 573 if (status != IUU_OPERATION_OK) 574 dbg("%s - write error ", __func__); 575 return status; 576 } 577 578 static int iuu_uart_flush(struct usb_serial_port *port) 579 { 580 int i; 581 int status; 582 u8 rxcmd = IUU_UART_RX; 583 struct iuu_private *priv = usb_get_serial_port_data(port); 584 585 dbg("%s - enter", __func__); 586 587 if (iuu_led(port, 0xF000, 0, 0, 0xFF) < 0) 588 return -EIO; 589 590 for (i = 0; i < 2; i++) { 591 status = bulk_immediate(port, &rxcmd, 1); 592 if (status != IUU_OPERATION_OK) { 593 dbg("%s - uart_flush_write error", __func__); 594 return status; 595 } 596 597 status = read_immediate(port, &priv->len, 1); 598 if (status != IUU_OPERATION_OK) { 599 dbg("%s - uart_flush_read error", __func__); 600 return status; 601 } 602 603 if (priv->len > 0) { 604 dbg("%s - uart_flush datalen is : %i ", __func__, 605 priv->len); 606 status = read_immediate(port, priv->buf, priv->len); 607 if (status != IUU_OPERATION_OK) { 608 dbg("%s - uart_flush_read error", __func__); 609 return status; 610 } 611 } 612 } 613 dbg("%s - uart_flush_read OK!", __func__); 614 iuu_led(port, 0, 0xF000, 0, 0xFF); 615 return status; 616 } 617 618 static void read_buf_callback(struct urb *urb) 619 { 620 struct usb_serial_port *port = urb->context; 621 unsigned char *data = urb->transfer_buffer; 622 struct tty_struct *tty; 623 int status = urb->status; 624 625 dbg("%s - status = %d", __func__, status); 626 627 if (status) { 628 if (status == -EPROTO) { 629 /* reschedule needed */ 630 } 631 return; 632 } 633 634 dbg("%s - %i chars to write", __func__, urb->actual_length); 635 tty = tty_port_tty_get(&port->port); 636 if (data == NULL) 637 dbg("%s - data is NULL !!!", __func__); 638 if (tty && urb->actual_length && data) { 639 tty_insert_flip_string(tty, data, urb->actual_length); 640 tty_flip_buffer_push(tty); 641 } 642 tty_kref_put(tty); 643 iuu_led_activity_on(urb); 644 } 645 646 static int iuu_bulk_write(struct usb_serial_port *port) 647 { 648 struct iuu_private *priv = usb_get_serial_port_data(port); 649 unsigned long flags; 650 int result; 651 int i; 652 int buf_len; 653 char *buf_ptr = port->write_urb->transfer_buffer; 654 dbg("%s - enter", __func__); 655 656 spin_lock_irqsave(&priv->lock, flags); 657 *buf_ptr++ = IUU_UART_ESC; 658 *buf_ptr++ = IUU_UART_TX; 659 *buf_ptr++ = priv->writelen; 660 661 memcpy(buf_ptr, priv->writebuf, priv->writelen); 662 buf_len = priv->writelen; 663 priv->writelen = 0; 664 spin_unlock_irqrestore(&priv->lock, flags); 665 if (debug == 1) { 666 for (i = 0; i < buf_len; i++) 667 sprintf(priv->dbgbuf + i*2 , 668 "%02X", priv->writebuf[i]); 669 priv->dbgbuf[buf_len+i*2] = 0; 670 dbg("%s - writing %i chars : %s", __func__, 671 buf_len, priv->dbgbuf); 672 } 673 usb_fill_bulk_urb(port->write_urb, port->serial->dev, 674 usb_sndbulkpipe(port->serial->dev, 675 port->bulk_out_endpointAddress), 676 port->write_urb->transfer_buffer, buf_len + 3, 677 iuu_rxcmd, port); 678 result = usb_submit_urb(port->write_urb, GFP_ATOMIC); 679 usb_serial_port_softint(port); 680 return result; 681 } 682 683 static int iuu_read_buf(struct usb_serial_port *port, int len) 684 { 685 int result; 686 dbg("%s - enter", __func__); 687 688 usb_fill_bulk_urb(port->read_urb, port->serial->dev, 689 usb_rcvbulkpipe(port->serial->dev, 690 port->bulk_in_endpointAddress), 691 port->read_urb->transfer_buffer, len, 692 read_buf_callback, port); 693 result = usb_submit_urb(port->read_urb, GFP_ATOMIC); 694 return result; 695 } 696 697 static void iuu_uart_read_callback(struct urb *urb) 698 { 699 struct usb_serial_port *port = urb->context; 700 struct iuu_private *priv = usb_get_serial_port_data(port); 701 unsigned long flags; 702 int status = urb->status; 703 int error = 0; 704 int len = 0; 705 unsigned char *data = urb->transfer_buffer; 706 priv->poll++; 707 708 dbg("%s - enter", __func__); 709 710 if (status) { 711 dbg("%s - status = %d", __func__, status); 712 /* error stop all */ 713 return; 714 } 715 if (data == NULL) 716 dbg("%s - data is NULL !!!", __func__); 717 718 if (urb->actual_length == 1 && data != NULL) 719 len = (int) data[0]; 720 721 if (urb->actual_length > 1) { 722 dbg("%s - urb->actual_length = %i", __func__, 723 urb->actual_length); 724 error = 1; 725 return; 726 } 727 /* if len > 0 call readbuf */ 728 729 if (len > 0 && error == 0) { 730 dbg("%s - call read buf - len to read is %i ", 731 __func__, len); 732 status = iuu_read_buf(port, len); 733 return; 734 } 735 /* need to update status ? */ 736 if (priv->poll > 99) { 737 status = iuu_status(port); 738 priv->poll = 0; 739 return; 740 } 741 742 /* reset waiting ? */ 743 744 if (priv->reset == 1) { 745 status = iuu_reset(port, 0xC); 746 return; 747 } 748 /* Writebuf is waiting */ 749 spin_lock_irqsave(&priv->lock, flags); 750 if (priv->writelen > 0) { 751 spin_unlock_irqrestore(&priv->lock, flags); 752 status = iuu_bulk_write(port); 753 return; 754 } 755 spin_unlock_irqrestore(&priv->lock, flags); 756 /* if nothing to write call again rxcmd */ 757 dbg("%s - rxcmd recall", __func__); 758 iuu_led_activity_off(urb); 759 } 760 761 static int iuu_uart_write(struct tty_struct *tty, struct usb_serial_port *port, 762 const u8 *buf, int count) 763 { 764 struct iuu_private *priv = usb_get_serial_port_data(port); 765 unsigned long flags; 766 dbg("%s - enter", __func__); 767 768 if (count > 256) 769 return -ENOMEM; 770 771 spin_lock_irqsave(&priv->lock, flags); 772 773 /* fill the buffer */ 774 memcpy(priv->writebuf + priv->writelen, buf, count); 775 priv->writelen += count; 776 spin_unlock_irqrestore(&priv->lock, flags); 777 778 return count; 779 } 780 781 static void read_rxcmd_callback(struct urb *urb) 782 { 783 struct usb_serial_port *port = urb->context; 784 int result; 785 int status = urb->status; 786 787 dbg("%s - status = %d", __func__, status); 788 789 if (status) { 790 /* error stop all */ 791 return; 792 } 793 794 usb_fill_bulk_urb(port->read_urb, port->serial->dev, 795 usb_rcvbulkpipe(port->serial->dev, 796 port->bulk_in_endpointAddress), 797 port->read_urb->transfer_buffer, 256, 798 iuu_uart_read_callback, port); 799 result = usb_submit_urb(port->read_urb, GFP_ATOMIC); 800 dbg("%s - submit result = %d", __func__, result); 801 return; 802 } 803 804 static int iuu_uart_on(struct usb_serial_port *port) 805 { 806 int status; 807 u8 *buf; 808 809 buf = kmalloc(sizeof(u8) * 4, GFP_KERNEL); 810 811 if (!buf) 812 return -ENOMEM; 813 814 buf[0] = IUU_UART_ENABLE; 815 buf[1] = (u8) ((IUU_BAUD_9600 >> 8) & 0x00FF); 816 buf[2] = (u8) (0x00FF & IUU_BAUD_9600); 817 buf[3] = (u8) (0x0F0 & IUU_ONE_STOP_BIT) | (0x07 & IUU_PARITY_EVEN); 818 819 status = bulk_immediate(port, buf, 4); 820 if (status != IUU_OPERATION_OK) { 821 dbg("%s - uart_on error", __func__); 822 goto uart_enable_failed; 823 } 824 /* iuu_reset() the card after iuu_uart_on() */ 825 status = iuu_uart_flush(port); 826 if (status != IUU_OPERATION_OK) 827 dbg("%s - uart_flush error", __func__); 828 uart_enable_failed: 829 kfree(buf); 830 return status; 831 } 832 833 /* Diables the IUU UART (a.k.a. the Phoenix voiderface) */ 834 static int iuu_uart_off(struct usb_serial_port *port) 835 { 836 int status; 837 u8 *buf; 838 buf = kmalloc(1, GFP_KERNEL); 839 if (!buf) 840 return -ENOMEM; 841 buf[0] = IUU_UART_DISABLE; 842 843 status = bulk_immediate(port, buf, 1); 844 if (status != IUU_OPERATION_OK) 845 dbg("%s - uart_off error", __func__); 846 847 kfree(buf); 848 return status; 849 } 850 851 static int iuu_uart_baud(struct usb_serial_port *port, u32 baud, 852 u32 *actual, u8 parity) 853 { 854 int status; 855 u8 *dataout; 856 u8 DataCount = 0; 857 u8 T1Frekvens = 0; 858 u8 T1reload = 0; 859 unsigned int T1FrekvensHZ = 0; 860 861 dataout = kmalloc(sizeof(u8) * 5, GFP_KERNEL); 862 863 if (!dataout) 864 return -ENOMEM; 865 866 if (baud < 1200 || baud > 230400) { 867 kfree(dataout); 868 return IUU_INVALID_PARAMETER; 869 } 870 if (baud > 977) { 871 T1Frekvens = 3; 872 T1FrekvensHZ = 500000; 873 } 874 875 if (baud > 3906) { 876 T1Frekvens = 2; 877 T1FrekvensHZ = 2000000; 878 } 879 880 if (baud > 11718) { 881 T1Frekvens = 1; 882 T1FrekvensHZ = 6000000; 883 } 884 885 if (baud > 46875) { 886 T1Frekvens = 0; 887 T1FrekvensHZ = 24000000; 888 } 889 890 T1reload = 256 - (u8) (T1FrekvensHZ / (baud * 2)); 891 892 /* magic number here: ENTER_FIRMWARE_UPDATE; */ 893 dataout[DataCount++] = IUU_UART_ESC; 894 /* magic number here: CHANGE_BAUD; */ 895 dataout[DataCount++] = IUU_UART_CHANGE; 896 dataout[DataCount++] = T1Frekvens; 897 dataout[DataCount++] = T1reload; 898 899 *actual = (T1FrekvensHZ / (256 - T1reload)) / 2; 900 901 switch (parity & 0x0F) { 902 case IUU_PARITY_NONE: 903 dataout[DataCount++] = 0x00; 904 break; 905 case IUU_PARITY_EVEN: 906 dataout[DataCount++] = 0x01; 907 break; 908 case IUU_PARITY_ODD: 909 dataout[DataCount++] = 0x02; 910 break; 911 case IUU_PARITY_MARK: 912 dataout[DataCount++] = 0x03; 913 break; 914 case IUU_PARITY_SPACE: 915 dataout[DataCount++] = 0x04; 916 break; 917 default: 918 kfree(dataout); 919 return IUU_INVALID_PARAMETER; 920 break; 921 } 922 923 switch (parity & 0xF0) { 924 case IUU_ONE_STOP_BIT: 925 dataout[DataCount - 1] |= IUU_ONE_STOP_BIT; 926 break; 927 928 case IUU_TWO_STOP_BITS: 929 dataout[DataCount - 1] |= IUU_TWO_STOP_BITS; 930 break; 931 default: 932 kfree(dataout); 933 return IUU_INVALID_PARAMETER; 934 break; 935 } 936 937 status = bulk_immediate(port, dataout, DataCount); 938 if (status != IUU_OPERATION_OK) 939 dbg("%s - uart_off error", __func__); 940 kfree(dataout); 941 return status; 942 } 943 944 static void iuu_set_termios(struct tty_struct *tty, 945 struct usb_serial_port *port, struct ktermios *old_termios) 946 { 947 const u32 supported_mask = CMSPAR|PARENB|PARODD; 948 949 unsigned int cflag = tty->termios->c_cflag; 950 int status; 951 u32 actual; 952 u32 parity; 953 int csize = CS7; 954 int baud = 9600; /* Fixed for the moment */ 955 u32 newval = cflag & supported_mask; 956 957 /* compute the parity parameter */ 958 parity = 0; 959 if (cflag & CMSPAR) { /* Using mark space */ 960 if (cflag & PARODD) 961 parity |= IUU_PARITY_SPACE; 962 else 963 parity |= IUU_PARITY_MARK; 964 } else if (!(cflag & PARENB)) { 965 parity |= IUU_PARITY_NONE; 966 csize = CS8; 967 } else if (cflag & PARODD) 968 parity |= IUU_PARITY_ODD; 969 else 970 parity |= IUU_PARITY_EVEN; 971 972 parity |= (cflag & CSTOPB ? IUU_TWO_STOP_BITS : IUU_ONE_STOP_BIT); 973 974 /* set it */ 975 status = iuu_uart_baud(port, 976 (clockmode == 2) ? 16457 : 9600 * boost / 100, 977 &actual, parity); 978 979 /* set the termios value to the real one, so the user now what has 980 * changed. We support few fields so its easies to copy the old hw 981 * settings back over and then adjust them 982 */ 983 if (old_termios) 984 tty_termios_copy_hw(tty->termios, old_termios); 985 if (status != 0) /* Set failed - return old bits */ 986 return; 987 /* Re-encode speed, parity and csize */ 988 tty_encode_baud_rate(tty, baud, baud); 989 tty->termios->c_cflag &= ~(supported_mask|CSIZE); 990 tty->termios->c_cflag |= newval | csize; 991 } 992 993 static void iuu_close(struct usb_serial_port *port) 994 { 995 /* iuu_led (port,255,0,0,0); */ 996 struct usb_serial *serial; 997 998 serial = port->serial; 999 if (!serial) 1000 return; 1001 1002 dbg("%s - port %d", __func__, port->number); 1003 1004 iuu_uart_off(port); 1005 if (serial->dev) { 1006 /* free writebuf */ 1007 /* shutdown our urbs */ 1008 dbg("%s - shutting down urbs", __func__); 1009 usb_kill_urb(port->write_urb); 1010 usb_kill_urb(port->read_urb); 1011 usb_kill_urb(port->interrupt_in_urb); 1012 msleep(1000); 1013 /* wait one second to free all buffers */ 1014 iuu_led(port, 0, 0, 0xF000, 0xFF); 1015 msleep(1000); 1016 usb_reset_device(port->serial->dev); 1017 } 1018 } 1019 1020 static void iuu_init_termios(struct tty_struct *tty) 1021 { 1022 *(tty->termios) = tty_std_termios; 1023 tty->termios->c_cflag = CLOCAL | CREAD | CS8 | B9600 1024 | TIOCM_CTS | CSTOPB | PARENB; 1025 tty->termios->c_ispeed = 9600; 1026 tty->termios->c_ospeed = 9600; 1027 tty->termios->c_lflag = 0; 1028 tty->termios->c_oflag = 0; 1029 tty->termios->c_iflag = 0; 1030 } 1031 1032 static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port) 1033 { 1034 struct usb_serial *serial = port->serial; 1035 u8 *buf; 1036 int result; 1037 u32 actual; 1038 struct iuu_private *priv = usb_get_serial_port_data(port); 1039 1040 dbg("%s - port %d", __func__, port->number); 1041 usb_clear_halt(serial->dev, port->write_urb->pipe); 1042 usb_clear_halt(serial->dev, port->read_urb->pipe); 1043 1044 buf = kmalloc(10, GFP_KERNEL); 1045 if (buf == NULL) 1046 return -ENOMEM; 1047 1048 /* fixup the endpoint buffer size */ 1049 kfree(port->bulk_out_buffer); 1050 port->bulk_out_buffer = kmalloc(512, GFP_KERNEL); 1051 port->bulk_out_size = 512; 1052 kfree(port->bulk_in_buffer); 1053 port->bulk_in_buffer = kmalloc(512, GFP_KERNEL); 1054 port->bulk_in_size = 512; 1055 1056 if (!port->bulk_out_buffer || !port->bulk_in_buffer) { 1057 kfree(port->bulk_out_buffer); 1058 kfree(port->bulk_in_buffer); 1059 kfree(buf); 1060 return -ENOMEM; 1061 } 1062 1063 usb_fill_bulk_urb(port->write_urb, port->serial->dev, 1064 usb_sndbulkpipe(port->serial->dev, 1065 port->bulk_out_endpointAddress), 1066 port->bulk_out_buffer, 512, 1067 NULL, NULL); 1068 1069 1070 usb_fill_bulk_urb(port->read_urb, port->serial->dev, 1071 usb_rcvbulkpipe(port->serial->dev, 1072 port->bulk_in_endpointAddress), 1073 port->bulk_in_buffer, 512, 1074 NULL, NULL); 1075 1076 priv->poll = 0; 1077 1078 /* initialize writebuf */ 1079 #define FISH(a, b, c, d) do { \ 1080 result = usb_control_msg(port->serial->dev, \ 1081 usb_rcvctrlpipe(port->serial->dev, 0), \ 1082 b, a, c, d, buf, 1, 1000); \ 1083 dbg("0x%x:0x%x:0x%x:0x%x %d - %x", a, b, c, d, result, \ 1084 buf[0]); } while (0); 1085 1086 #define SOUP(a, b, c, d) do { \ 1087 result = usb_control_msg(port->serial->dev, \ 1088 usb_sndctrlpipe(port->serial->dev, 0), \ 1089 b, a, c, d, NULL, 0, 1000); \ 1090 dbg("0x%x:0x%x:0x%x:0x%x %d", a, b, c, d, result); } while (0) 1091 1092 /* This is not UART related but IUU USB driver related or something */ 1093 /* like that. Basically no IUU will accept any commands from the USB */ 1094 /* host unless it has received the following message */ 1095 /* sprintf(buf ,"%c%c%c%c",0x03,0x02,0x02,0x0); */ 1096 1097 SOUP(0x03, 0x02, 0x02, 0x0); 1098 kfree(buf); 1099 iuu_led(port, 0xF000, 0xF000, 0, 0xFF); 1100 iuu_uart_on(port); 1101 if (boost < 100) 1102 boost = 100; 1103 switch (clockmode) { 1104 case 2: /* 3.680 Mhz */ 1105 iuu_clk(port, IUU_CLK_3680000 * boost / 100); 1106 result = 1107 iuu_uart_baud(port, 9600 * boost / 100, &actual, 1108 IUU_PARITY_EVEN); 1109 break; 1110 case 3: /* 6.00 Mhz */ 1111 iuu_clk(port, IUU_CLK_6000000 * boost / 100); 1112 result = 1113 iuu_uart_baud(port, 16457 * boost / 100, &actual, 1114 IUU_PARITY_EVEN); 1115 break; 1116 default: /* 3.579 Mhz */ 1117 iuu_clk(port, IUU_CLK_3579000 * boost / 100); 1118 result = 1119 iuu_uart_baud(port, 9600 * boost / 100, &actual, 1120 IUU_PARITY_EVEN); 1121 } 1122 1123 /* set the cardin cardout signals */ 1124 switch (cdmode) { 1125 case 0: 1126 iuu_cardin = 0; 1127 iuu_cardout = 0; 1128 break; 1129 case 1: 1130 iuu_cardin = TIOCM_CD; 1131 iuu_cardout = 0; 1132 break; 1133 case 2: 1134 iuu_cardin = 0; 1135 iuu_cardout = TIOCM_CD; 1136 break; 1137 case 3: 1138 iuu_cardin = TIOCM_DSR; 1139 iuu_cardout = 0; 1140 break; 1141 case 4: 1142 iuu_cardin = 0; 1143 iuu_cardout = TIOCM_DSR; 1144 break; 1145 case 5: 1146 iuu_cardin = TIOCM_CTS; 1147 iuu_cardout = 0; 1148 break; 1149 case 6: 1150 iuu_cardin = 0; 1151 iuu_cardout = TIOCM_CTS; 1152 break; 1153 case 7: 1154 iuu_cardin = TIOCM_RNG; 1155 iuu_cardout = 0; 1156 break; 1157 case 8: 1158 iuu_cardin = 0; 1159 iuu_cardout = TIOCM_RNG; 1160 } 1161 1162 iuu_uart_flush(port); 1163 1164 dbg("%s - initialization done", __func__); 1165 1166 memset(port->write_urb->transfer_buffer, IUU_UART_RX, 1); 1167 usb_fill_bulk_urb(port->write_urb, port->serial->dev, 1168 usb_sndbulkpipe(port->serial->dev, 1169 port->bulk_out_endpointAddress), 1170 port->write_urb->transfer_buffer, 1, 1171 read_rxcmd_callback, port); 1172 result = usb_submit_urb(port->write_urb, GFP_KERNEL); 1173 1174 if (result) { 1175 dev_err(&port->dev, "%s - failed submitting read urb," 1176 " error %d\n", __func__, result); 1177 iuu_close(port); 1178 return -EPROTO; 1179 } else { 1180 dbg("%s - rxcmd OK", __func__); 1181 } 1182 return result; 1183 } 1184 1185 static struct usb_serial_driver iuu_device = { 1186 .driver = { 1187 .owner = THIS_MODULE, 1188 .name = "iuu_phoenix", 1189 }, 1190 .id_table = id_table, 1191 .num_ports = 1, 1192 .open = iuu_open, 1193 .close = iuu_close, 1194 .write = iuu_uart_write, 1195 .read_bulk_callback = iuu_uart_read_callback, 1196 .tiocmget = iuu_tiocmget, 1197 .tiocmset = iuu_tiocmset, 1198 .set_termios = iuu_set_termios, 1199 .init_termios = iuu_init_termios, 1200 .attach = iuu_startup, 1201 .release = iuu_release, 1202 }; 1203 1204 static int __init iuu_init(void) 1205 { 1206 int retval; 1207 retval = usb_serial_register(&iuu_device); 1208 if (retval) 1209 goto failed_usb_serial_register; 1210 retval = usb_register(&iuu_driver); 1211 if (retval) 1212 goto failed_usb_register; 1213 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 1214 DRIVER_DESC "\n"); 1215 return 0; 1216 failed_usb_register: 1217 usb_serial_deregister(&iuu_device); 1218 failed_usb_serial_register: 1219 return retval; 1220 } 1221 1222 static void __exit iuu_exit(void) 1223 { 1224 usb_deregister(&iuu_driver); 1225 usb_serial_deregister(&iuu_device); 1226 } 1227 1228 module_init(iuu_init); 1229 module_exit(iuu_exit); 1230 1231 MODULE_AUTHOR("Alain Degreffe eczema@ecze.com"); 1232 1233 MODULE_DESCRIPTION(DRIVER_DESC); 1234 MODULE_LICENSE("GPL"); 1235 1236 MODULE_VERSION(DRIVER_VERSION); 1237 module_param(debug, bool, S_IRUGO | S_IWUSR); 1238 MODULE_PARM_DESC(debug, "Debug enabled or not"); 1239 1240 module_param(xmas, bool, S_IRUGO | S_IWUSR); 1241 MODULE_PARM_DESC(xmas, "xmas color enabled or not"); 1242 1243 module_param(boost, int, S_IRUGO | S_IWUSR); 1244 MODULE_PARM_DESC(boost, "overclock boost percent 100 to 500"); 1245 1246 module_param(clockmode, int, S_IRUGO | S_IWUSR); 1247 MODULE_PARM_DESC(clockmode, "1=3Mhz579,2=3Mhz680,3=6Mhz"); 1248 1249 module_param(cdmode, int, S_IRUGO | S_IWUSR); 1250 MODULE_PARM_DESC(cdmode, "Card detect mode 0=none, 1=CD, 2=!CD, 3=DSR, " 1251 "4=!DSR, 5=CTS, 6=!CTS, 7=RING, 8=!RING"); 1252