1 /* 2 * 3 * Bluetooth driver for the Anycom BlueCard (LSE039/LSE041) 4 * 5 * Copyright (C) 2001-2002 Marcel Holtmann <marcel@holtmann.org> 6 * 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 version 2 as 10 * published by the Free Software Foundation; 11 * 12 * Software distributed under the License is distributed on an "AS 13 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or 14 * implied. See the License for the specific language governing 15 * rights and limitations under the License. 16 * 17 * The initial developer of the original code is David A. Hinds 18 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds 19 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. 20 * 21 */ 22 23 #include <linux/module.h> 24 25 #include <linux/kernel.h> 26 #include <linux/init.h> 27 #include <linux/slab.h> 28 #include <linux/types.h> 29 #include <linux/sched.h> 30 #include <linux/delay.h> 31 #include <linux/timer.h> 32 #include <linux/errno.h> 33 #include <linux/ptrace.h> 34 #include <linux/ioport.h> 35 #include <linux/spinlock.h> 36 #include <linux/moduleparam.h> 37 #include <linux/wait.h> 38 39 #include <linux/skbuff.h> 40 #include <linux/io.h> 41 42 #include <pcmcia/cistpl.h> 43 #include <pcmcia/ciscode.h> 44 #include <pcmcia/ds.h> 45 #include <pcmcia/cisreg.h> 46 47 #include <net/bluetooth/bluetooth.h> 48 #include <net/bluetooth/hci_core.h> 49 50 51 52 /* ======================== Module parameters ======================== */ 53 54 55 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 56 MODULE_DESCRIPTION("Bluetooth driver for the Anycom BlueCard (LSE039/LSE041)"); 57 MODULE_LICENSE("GPL"); 58 59 60 61 /* ======================== Local structures ======================== */ 62 63 64 typedef struct bluecard_info_t { 65 struct pcmcia_device *p_dev; 66 67 struct hci_dev *hdev; 68 69 spinlock_t lock; /* For serializing operations */ 70 struct timer_list timer; /* For LED control */ 71 72 struct sk_buff_head txq; 73 unsigned long tx_state; 74 75 unsigned long rx_state; 76 unsigned long rx_count; 77 struct sk_buff *rx_skb; 78 79 unsigned char ctrl_reg; 80 unsigned long hw_state; /* Status of the hardware and LED control */ 81 } bluecard_info_t; 82 83 84 static int bluecard_config(struct pcmcia_device *link); 85 static void bluecard_release(struct pcmcia_device *link); 86 87 static void bluecard_detach(struct pcmcia_device *p_dev); 88 89 90 /* Default baud rate: 57600, 115200, 230400 or 460800 */ 91 #define DEFAULT_BAUD_RATE 230400 92 93 94 /* Hardware states */ 95 #define CARD_READY 1 96 #define CARD_HAS_PCCARD_ID 4 97 #define CARD_HAS_POWER_LED 5 98 #define CARD_HAS_ACTIVITY_LED 6 99 100 /* Transmit states */ 101 #define XMIT_SENDING 1 102 #define XMIT_WAKEUP 2 103 #define XMIT_BUFFER_NUMBER 5 /* unset = buffer one, set = buffer two */ 104 #define XMIT_BUF_ONE_READY 6 105 #define XMIT_BUF_TWO_READY 7 106 #define XMIT_SENDING_READY 8 107 108 /* Receiver states */ 109 #define RECV_WAIT_PACKET_TYPE 0 110 #define RECV_WAIT_EVENT_HEADER 1 111 #define RECV_WAIT_ACL_HEADER 2 112 #define RECV_WAIT_SCO_HEADER 3 113 #define RECV_WAIT_DATA 4 114 115 /* Special packet types */ 116 #define PKT_BAUD_RATE_57600 0x80 117 #define PKT_BAUD_RATE_115200 0x81 118 #define PKT_BAUD_RATE_230400 0x82 119 #define PKT_BAUD_RATE_460800 0x83 120 121 122 /* These are the register offsets */ 123 #define REG_COMMAND 0x20 124 #define REG_INTERRUPT 0x21 125 #define REG_CONTROL 0x22 126 #define REG_RX_CONTROL 0x24 127 #define REG_CARD_RESET 0x30 128 #define REG_LED_CTRL 0x30 129 130 /* REG_COMMAND */ 131 #define REG_COMMAND_TX_BUF_ONE 0x01 132 #define REG_COMMAND_TX_BUF_TWO 0x02 133 #define REG_COMMAND_RX_BUF_ONE 0x04 134 #define REG_COMMAND_RX_BUF_TWO 0x08 135 #define REG_COMMAND_RX_WIN_ONE 0x00 136 #define REG_COMMAND_RX_WIN_TWO 0x10 137 138 /* REG_CONTROL */ 139 #define REG_CONTROL_BAUD_RATE_57600 0x00 140 #define REG_CONTROL_BAUD_RATE_115200 0x01 141 #define REG_CONTROL_BAUD_RATE_230400 0x02 142 #define REG_CONTROL_BAUD_RATE_460800 0x03 143 #define REG_CONTROL_RTS 0x04 144 #define REG_CONTROL_BT_ON 0x08 145 #define REG_CONTROL_BT_RESET 0x10 146 #define REG_CONTROL_BT_RES_PU 0x20 147 #define REG_CONTROL_INTERRUPT 0x40 148 #define REG_CONTROL_CARD_RESET 0x80 149 150 /* REG_RX_CONTROL */ 151 #define RTS_LEVEL_SHIFT_BITS 0x02 152 153 154 155 /* ======================== LED handling routines ======================== */ 156 157 158 static void bluecard_activity_led_timeout(u_long arg) 159 { 160 bluecard_info_t *info = (bluecard_info_t *)arg; 161 unsigned int iobase = info->p_dev->resource[0]->start; 162 163 if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) 164 return; 165 166 if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) { 167 /* Disable activity LED */ 168 outb(0x08 | 0x20, iobase + 0x30); 169 } else { 170 /* Disable power LED */ 171 outb(0x00, iobase + 0x30); 172 } 173 } 174 175 176 static void bluecard_enable_activity_led(bluecard_info_t *info) 177 { 178 unsigned int iobase = info->p_dev->resource[0]->start; 179 180 if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) 181 return; 182 183 if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) { 184 /* Enable activity LED */ 185 outb(0x10 | 0x40, iobase + 0x30); 186 187 /* Stop the LED after HZ/4 */ 188 mod_timer(&(info->timer), jiffies + HZ / 4); 189 } else { 190 /* Enable power LED */ 191 outb(0x08 | 0x20, iobase + 0x30); 192 193 /* Stop the LED after HZ/2 */ 194 mod_timer(&(info->timer), jiffies + HZ / 2); 195 } 196 } 197 198 199 200 /* ======================== Interrupt handling ======================== */ 201 202 203 static int bluecard_write(unsigned int iobase, unsigned int offset, __u8 *buf, int len) 204 { 205 int i, actual; 206 207 actual = (len > 15) ? 15 : len; 208 209 outb_p(actual, iobase + offset); 210 211 for (i = 0; i < actual; i++) 212 outb_p(buf[i], iobase + offset + i + 1); 213 214 return actual; 215 } 216 217 218 static void bluecard_write_wakeup(bluecard_info_t *info) 219 { 220 if (!info) { 221 BT_ERR("Unknown device"); 222 return; 223 } 224 225 if (!test_bit(XMIT_SENDING_READY, &(info->tx_state))) 226 return; 227 228 if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) { 229 set_bit(XMIT_WAKEUP, &(info->tx_state)); 230 return; 231 } 232 233 do { 234 unsigned int iobase = info->p_dev->resource[0]->start; 235 unsigned int offset; 236 unsigned char command; 237 unsigned long ready_bit; 238 register struct sk_buff *skb; 239 int len; 240 241 clear_bit(XMIT_WAKEUP, &(info->tx_state)); 242 243 if (!pcmcia_dev_present(info->p_dev)) 244 return; 245 246 if (test_bit(XMIT_BUFFER_NUMBER, &(info->tx_state))) { 247 if (!test_bit(XMIT_BUF_TWO_READY, &(info->tx_state))) 248 break; 249 offset = 0x10; 250 command = REG_COMMAND_TX_BUF_TWO; 251 ready_bit = XMIT_BUF_TWO_READY; 252 } else { 253 if (!test_bit(XMIT_BUF_ONE_READY, &(info->tx_state))) 254 break; 255 offset = 0x00; 256 command = REG_COMMAND_TX_BUF_ONE; 257 ready_bit = XMIT_BUF_ONE_READY; 258 } 259 260 if (!(skb = skb_dequeue(&(info->txq)))) 261 break; 262 263 if (bt_cb(skb)->pkt_type & 0x80) { 264 /* Disable RTS */ 265 info->ctrl_reg |= REG_CONTROL_RTS; 266 outb(info->ctrl_reg, iobase + REG_CONTROL); 267 } 268 269 /* Activate LED */ 270 bluecard_enable_activity_led(info); 271 272 /* Send frame */ 273 len = bluecard_write(iobase, offset, skb->data, skb->len); 274 275 /* Tell the FPGA to send the data */ 276 outb_p(command, iobase + REG_COMMAND); 277 278 /* Mark the buffer as dirty */ 279 clear_bit(ready_bit, &(info->tx_state)); 280 281 if (bt_cb(skb)->pkt_type & 0x80) { 282 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); 283 DEFINE_WAIT(wait); 284 285 unsigned char baud_reg; 286 287 switch (bt_cb(skb)->pkt_type) { 288 case PKT_BAUD_RATE_460800: 289 baud_reg = REG_CONTROL_BAUD_RATE_460800; 290 break; 291 case PKT_BAUD_RATE_230400: 292 baud_reg = REG_CONTROL_BAUD_RATE_230400; 293 break; 294 case PKT_BAUD_RATE_115200: 295 baud_reg = REG_CONTROL_BAUD_RATE_115200; 296 break; 297 case PKT_BAUD_RATE_57600: 298 /* Fall through... */ 299 default: 300 baud_reg = REG_CONTROL_BAUD_RATE_57600; 301 break; 302 } 303 304 /* Wait until the command reaches the baseband */ 305 prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE); 306 schedule_timeout(HZ/10); 307 finish_wait(&wq, &wait); 308 309 /* Set baud on baseband */ 310 info->ctrl_reg &= ~0x03; 311 info->ctrl_reg |= baud_reg; 312 outb(info->ctrl_reg, iobase + REG_CONTROL); 313 314 /* Enable RTS */ 315 info->ctrl_reg &= ~REG_CONTROL_RTS; 316 outb(info->ctrl_reg, iobase + REG_CONTROL); 317 318 /* Wait before the next HCI packet can be send */ 319 prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE); 320 schedule_timeout(HZ); 321 finish_wait(&wq, &wait); 322 } 323 324 if (len == skb->len) { 325 kfree_skb(skb); 326 } else { 327 skb_pull(skb, len); 328 skb_queue_head(&(info->txq), skb); 329 } 330 331 info->hdev->stat.byte_tx += len; 332 333 /* Change buffer */ 334 change_bit(XMIT_BUFFER_NUMBER, &(info->tx_state)); 335 336 } while (test_bit(XMIT_WAKEUP, &(info->tx_state))); 337 338 clear_bit(XMIT_SENDING, &(info->tx_state)); 339 } 340 341 342 static int bluecard_read(unsigned int iobase, unsigned int offset, __u8 *buf, int size) 343 { 344 int i, n, len; 345 346 outb(REG_COMMAND_RX_WIN_ONE, iobase + REG_COMMAND); 347 348 len = inb(iobase + offset); 349 n = 0; 350 i = 1; 351 352 while (n < len) { 353 354 if (i == 16) { 355 outb(REG_COMMAND_RX_WIN_TWO, iobase + REG_COMMAND); 356 i = 0; 357 } 358 359 buf[n] = inb(iobase + offset + i); 360 361 n++; 362 i++; 363 364 } 365 366 return len; 367 } 368 369 370 static void bluecard_receive(bluecard_info_t *info, unsigned int offset) 371 { 372 unsigned int iobase; 373 unsigned char buf[31]; 374 int i, len; 375 376 if (!info) { 377 BT_ERR("Unknown device"); 378 return; 379 } 380 381 iobase = info->p_dev->resource[0]->start; 382 383 if (test_bit(XMIT_SENDING_READY, &(info->tx_state))) 384 bluecard_enable_activity_led(info); 385 386 len = bluecard_read(iobase, offset, buf, sizeof(buf)); 387 388 for (i = 0; i < len; i++) { 389 390 /* Allocate packet */ 391 if (info->rx_skb == NULL) { 392 info->rx_state = RECV_WAIT_PACKET_TYPE; 393 info->rx_count = 0; 394 if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { 395 BT_ERR("Can't allocate mem for new packet"); 396 return; 397 } 398 } 399 400 if (info->rx_state == RECV_WAIT_PACKET_TYPE) { 401 402 info->rx_skb->dev = (void *) info->hdev; 403 bt_cb(info->rx_skb)->pkt_type = buf[i]; 404 405 switch (bt_cb(info->rx_skb)->pkt_type) { 406 407 case 0x00: 408 /* init packet */ 409 if (offset != 0x00) { 410 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); 411 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); 412 set_bit(XMIT_SENDING_READY, &(info->tx_state)); 413 bluecard_write_wakeup(info); 414 } 415 416 kfree_skb(info->rx_skb); 417 info->rx_skb = NULL; 418 break; 419 420 case HCI_EVENT_PKT: 421 info->rx_state = RECV_WAIT_EVENT_HEADER; 422 info->rx_count = HCI_EVENT_HDR_SIZE; 423 break; 424 425 case HCI_ACLDATA_PKT: 426 info->rx_state = RECV_WAIT_ACL_HEADER; 427 info->rx_count = HCI_ACL_HDR_SIZE; 428 break; 429 430 case HCI_SCODATA_PKT: 431 info->rx_state = RECV_WAIT_SCO_HEADER; 432 info->rx_count = HCI_SCO_HDR_SIZE; 433 break; 434 435 default: 436 /* unknown packet */ 437 BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type); 438 info->hdev->stat.err_rx++; 439 440 kfree_skb(info->rx_skb); 441 info->rx_skb = NULL; 442 break; 443 444 } 445 446 } else { 447 448 *skb_put(info->rx_skb, 1) = buf[i]; 449 info->rx_count--; 450 451 if (info->rx_count == 0) { 452 453 int dlen; 454 struct hci_event_hdr *eh; 455 struct hci_acl_hdr *ah; 456 struct hci_sco_hdr *sh; 457 458 switch (info->rx_state) { 459 460 case RECV_WAIT_EVENT_HEADER: 461 eh = hci_event_hdr(info->rx_skb); 462 info->rx_state = RECV_WAIT_DATA; 463 info->rx_count = eh->plen; 464 break; 465 466 case RECV_WAIT_ACL_HEADER: 467 ah = hci_acl_hdr(info->rx_skb); 468 dlen = __le16_to_cpu(ah->dlen); 469 info->rx_state = RECV_WAIT_DATA; 470 info->rx_count = dlen; 471 break; 472 473 case RECV_WAIT_SCO_HEADER: 474 sh = hci_sco_hdr(info->rx_skb); 475 info->rx_state = RECV_WAIT_DATA; 476 info->rx_count = sh->dlen; 477 break; 478 479 case RECV_WAIT_DATA: 480 hci_recv_frame(info->rx_skb); 481 info->rx_skb = NULL; 482 break; 483 484 } 485 486 } 487 488 } 489 490 491 } 492 493 info->hdev->stat.byte_rx += len; 494 } 495 496 497 static irqreturn_t bluecard_interrupt(int irq, void *dev_inst) 498 { 499 bluecard_info_t *info = dev_inst; 500 unsigned int iobase; 501 unsigned char reg; 502 503 if (!info || !info->hdev) 504 /* our irq handler is shared */ 505 return IRQ_NONE; 506 507 if (!test_bit(CARD_READY, &(info->hw_state))) 508 return IRQ_HANDLED; 509 510 iobase = info->p_dev->resource[0]->start; 511 512 spin_lock(&(info->lock)); 513 514 /* Disable interrupt */ 515 info->ctrl_reg &= ~REG_CONTROL_INTERRUPT; 516 outb(info->ctrl_reg, iobase + REG_CONTROL); 517 518 reg = inb(iobase + REG_INTERRUPT); 519 520 if ((reg != 0x00) && (reg != 0xff)) { 521 522 if (reg & 0x04) { 523 bluecard_receive(info, 0x00); 524 outb(0x04, iobase + REG_INTERRUPT); 525 outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND); 526 } 527 528 if (reg & 0x08) { 529 bluecard_receive(info, 0x10); 530 outb(0x08, iobase + REG_INTERRUPT); 531 outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND); 532 } 533 534 if (reg & 0x01) { 535 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); 536 outb(0x01, iobase + REG_INTERRUPT); 537 bluecard_write_wakeup(info); 538 } 539 540 if (reg & 0x02) { 541 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); 542 outb(0x02, iobase + REG_INTERRUPT); 543 bluecard_write_wakeup(info); 544 } 545 546 } 547 548 /* Enable interrupt */ 549 info->ctrl_reg |= REG_CONTROL_INTERRUPT; 550 outb(info->ctrl_reg, iobase + REG_CONTROL); 551 552 spin_unlock(&(info->lock)); 553 554 return IRQ_HANDLED; 555 } 556 557 558 559 /* ======================== Device specific HCI commands ======================== */ 560 561 562 static int bluecard_hci_set_baud_rate(struct hci_dev *hdev, int baud) 563 { 564 bluecard_info_t *info = hci_get_drvdata(hdev); 565 struct sk_buff *skb; 566 567 /* Ericsson baud rate command */ 568 unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 }; 569 570 if (!(skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { 571 BT_ERR("Can't allocate mem for new packet"); 572 return -1; 573 } 574 575 switch (baud) { 576 case 460800: 577 cmd[4] = 0x00; 578 bt_cb(skb)->pkt_type = PKT_BAUD_RATE_460800; 579 break; 580 case 230400: 581 cmd[4] = 0x01; 582 bt_cb(skb)->pkt_type = PKT_BAUD_RATE_230400; 583 break; 584 case 115200: 585 cmd[4] = 0x02; 586 bt_cb(skb)->pkt_type = PKT_BAUD_RATE_115200; 587 break; 588 case 57600: 589 /* Fall through... */ 590 default: 591 cmd[4] = 0x03; 592 bt_cb(skb)->pkt_type = PKT_BAUD_RATE_57600; 593 break; 594 } 595 596 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); 597 598 skb_queue_tail(&(info->txq), skb); 599 600 bluecard_write_wakeup(info); 601 602 return 0; 603 } 604 605 606 607 /* ======================== HCI interface ======================== */ 608 609 610 static int bluecard_hci_flush(struct hci_dev *hdev) 611 { 612 bluecard_info_t *info = hci_get_drvdata(hdev); 613 614 /* Drop TX queue */ 615 skb_queue_purge(&(info->txq)); 616 617 return 0; 618 } 619 620 621 static int bluecard_hci_open(struct hci_dev *hdev) 622 { 623 bluecard_info_t *info = hci_get_drvdata(hdev); 624 625 if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) 626 bluecard_hci_set_baud_rate(hdev, DEFAULT_BAUD_RATE); 627 628 if (test_and_set_bit(HCI_RUNNING, &(hdev->flags))) 629 return 0; 630 631 if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) { 632 unsigned int iobase = info->p_dev->resource[0]->start; 633 634 /* Enable LED */ 635 outb(0x08 | 0x20, iobase + 0x30); 636 } 637 638 return 0; 639 } 640 641 642 static int bluecard_hci_close(struct hci_dev *hdev) 643 { 644 bluecard_info_t *info = hci_get_drvdata(hdev); 645 646 if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags))) 647 return 0; 648 649 bluecard_hci_flush(hdev); 650 651 if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) { 652 unsigned int iobase = info->p_dev->resource[0]->start; 653 654 /* Disable LED */ 655 outb(0x00, iobase + 0x30); 656 } 657 658 return 0; 659 } 660 661 662 static int bluecard_hci_send_frame(struct sk_buff *skb) 663 { 664 bluecard_info_t *info; 665 struct hci_dev *hdev = (struct hci_dev *)(skb->dev); 666 667 if (!hdev) { 668 BT_ERR("Frame for unknown HCI device (hdev=NULL)"); 669 return -ENODEV; 670 } 671 672 info = hci_get_drvdata(hdev); 673 674 switch (bt_cb(skb)->pkt_type) { 675 case HCI_COMMAND_PKT: 676 hdev->stat.cmd_tx++; 677 break; 678 case HCI_ACLDATA_PKT: 679 hdev->stat.acl_tx++; 680 break; 681 case HCI_SCODATA_PKT: 682 hdev->stat.sco_tx++; 683 break; 684 }; 685 686 /* Prepend skb with frame type */ 687 memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); 688 skb_queue_tail(&(info->txq), skb); 689 690 bluecard_write_wakeup(info); 691 692 return 0; 693 } 694 695 696 static int bluecard_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) 697 { 698 return -ENOIOCTLCMD; 699 } 700 701 702 703 /* ======================== Card services HCI interaction ======================== */ 704 705 706 static int bluecard_open(bluecard_info_t *info) 707 { 708 unsigned int iobase = info->p_dev->resource[0]->start; 709 struct hci_dev *hdev; 710 unsigned char id; 711 712 spin_lock_init(&(info->lock)); 713 714 init_timer(&(info->timer)); 715 info->timer.function = &bluecard_activity_led_timeout; 716 info->timer.data = (u_long)info; 717 718 skb_queue_head_init(&(info->txq)); 719 720 info->rx_state = RECV_WAIT_PACKET_TYPE; 721 info->rx_count = 0; 722 info->rx_skb = NULL; 723 724 /* Initialize HCI device */ 725 hdev = hci_alloc_dev(); 726 if (!hdev) { 727 BT_ERR("Can't allocate HCI device"); 728 return -ENOMEM; 729 } 730 731 info->hdev = hdev; 732 733 hdev->bus = HCI_PCCARD; 734 hci_set_drvdata(hdev, info); 735 SET_HCIDEV_DEV(hdev, &info->p_dev->dev); 736 737 hdev->open = bluecard_hci_open; 738 hdev->close = bluecard_hci_close; 739 hdev->flush = bluecard_hci_flush; 740 hdev->send = bluecard_hci_send_frame; 741 hdev->ioctl = bluecard_hci_ioctl; 742 743 id = inb(iobase + 0x30); 744 745 if ((id & 0x0f) == 0x02) 746 set_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)); 747 748 if (id & 0x10) 749 set_bit(CARD_HAS_POWER_LED, &(info->hw_state)); 750 751 if (id & 0x20) 752 set_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state)); 753 754 /* Reset card */ 755 info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; 756 outb(info->ctrl_reg, iobase + REG_CONTROL); 757 758 /* Turn FPGA off */ 759 outb(0x80, iobase + 0x30); 760 761 /* Wait some time */ 762 msleep(10); 763 764 /* Turn FPGA on */ 765 outb(0x00, iobase + 0x30); 766 767 /* Activate card */ 768 info->ctrl_reg = REG_CONTROL_BT_ON | REG_CONTROL_BT_RES_PU; 769 outb(info->ctrl_reg, iobase + REG_CONTROL); 770 771 /* Enable interrupt */ 772 outb(0xff, iobase + REG_INTERRUPT); 773 info->ctrl_reg |= REG_CONTROL_INTERRUPT; 774 outb(info->ctrl_reg, iobase + REG_CONTROL); 775 776 if ((id & 0x0f) == 0x03) { 777 /* Disable RTS */ 778 info->ctrl_reg |= REG_CONTROL_RTS; 779 outb(info->ctrl_reg, iobase + REG_CONTROL); 780 781 /* Set baud rate */ 782 info->ctrl_reg |= 0x03; 783 outb(info->ctrl_reg, iobase + REG_CONTROL); 784 785 /* Enable RTS */ 786 info->ctrl_reg &= ~REG_CONTROL_RTS; 787 outb(info->ctrl_reg, iobase + REG_CONTROL); 788 789 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); 790 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); 791 set_bit(XMIT_SENDING_READY, &(info->tx_state)); 792 } 793 794 /* Start the RX buffers */ 795 outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND); 796 outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND); 797 798 /* Signal that the hardware is ready */ 799 set_bit(CARD_READY, &(info->hw_state)); 800 801 /* Drop TX queue */ 802 skb_queue_purge(&(info->txq)); 803 804 /* Control the point at which RTS is enabled */ 805 outb((0x0f << RTS_LEVEL_SHIFT_BITS) | 1, iobase + REG_RX_CONTROL); 806 807 /* Timeout before it is safe to send the first HCI packet */ 808 msleep(1250); 809 810 /* Register HCI device */ 811 if (hci_register_dev(hdev) < 0) { 812 BT_ERR("Can't register HCI device"); 813 info->hdev = NULL; 814 hci_free_dev(hdev); 815 return -ENODEV; 816 } 817 818 return 0; 819 } 820 821 822 static int bluecard_close(bluecard_info_t *info) 823 { 824 unsigned int iobase = info->p_dev->resource[0]->start; 825 struct hci_dev *hdev = info->hdev; 826 827 if (!hdev) 828 return -ENODEV; 829 830 bluecard_hci_close(hdev); 831 832 clear_bit(CARD_READY, &(info->hw_state)); 833 834 /* Reset card */ 835 info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; 836 outb(info->ctrl_reg, iobase + REG_CONTROL); 837 838 /* Turn FPGA off */ 839 outb(0x80, iobase + 0x30); 840 841 hci_unregister_dev(hdev); 842 hci_free_dev(hdev); 843 844 return 0; 845 } 846 847 static int bluecard_probe(struct pcmcia_device *link) 848 { 849 bluecard_info_t *info; 850 851 /* Create new info device */ 852 info = kzalloc(sizeof(*info), GFP_KERNEL); 853 if (!info) 854 return -ENOMEM; 855 856 info->p_dev = link; 857 link->priv = info; 858 859 link->config_flags |= CONF_ENABLE_IRQ; 860 861 return bluecard_config(link); 862 } 863 864 865 static void bluecard_detach(struct pcmcia_device *link) 866 { 867 bluecard_info_t *info = link->priv; 868 869 bluecard_release(link); 870 kfree(info); 871 } 872 873 874 static int bluecard_config(struct pcmcia_device *link) 875 { 876 bluecard_info_t *info = link->priv; 877 int i, n; 878 879 link->config_index = 0x20; 880 881 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; 882 link->resource[0]->end = 64; 883 link->io_lines = 6; 884 885 for (n = 0; n < 0x400; n += 0x40) { 886 link->resource[0]->start = n ^ 0x300; 887 i = pcmcia_request_io(link); 888 if (i == 0) 889 break; 890 } 891 892 if (i != 0) 893 goto failed; 894 895 i = pcmcia_request_irq(link, bluecard_interrupt); 896 if (i != 0) 897 goto failed; 898 899 i = pcmcia_enable_device(link); 900 if (i != 0) 901 goto failed; 902 903 if (bluecard_open(info) != 0) 904 goto failed; 905 906 return 0; 907 908 failed: 909 bluecard_release(link); 910 return -ENODEV; 911 } 912 913 914 static void bluecard_release(struct pcmcia_device *link) 915 { 916 bluecard_info_t *info = link->priv; 917 918 bluecard_close(info); 919 920 del_timer(&(info->timer)); 921 922 pcmcia_disable_device(link); 923 } 924 925 static const struct pcmcia_device_id bluecard_ids[] = { 926 PCMCIA_DEVICE_PROD_ID12("BlueCard", "LSE041", 0xbaf16fbf, 0x657cc15e), 927 PCMCIA_DEVICE_PROD_ID12("BTCFCARD", "LSE139", 0xe3987764, 0x2524b59c), 928 PCMCIA_DEVICE_PROD_ID12("WSS", "LSE039", 0x0a0736ec, 0x24e6dfab), 929 PCMCIA_DEVICE_NULL 930 }; 931 MODULE_DEVICE_TABLE(pcmcia, bluecard_ids); 932 933 static struct pcmcia_driver bluecard_driver = { 934 .owner = THIS_MODULE, 935 .name = "bluecard_cs", 936 .probe = bluecard_probe, 937 .remove = bluecard_detach, 938 .id_table = bluecard_ids, 939 }; 940 941 static int __init init_bluecard_cs(void) 942 { 943 return pcmcia_register_driver(&bluecard_driver); 944 } 945 946 947 static void __exit exit_bluecard_cs(void) 948 { 949 pcmcia_unregister_driver(&bluecard_driver); 950 } 951 952 module_init(init_bluecard_cs); 953 module_exit(exit_bluecard_cs); 954