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