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