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/config.h> 24 #include <linux/module.h> 25 26 #include <linux/kernel.h> 27 #include <linux/init.h> 28 #include <linux/slab.h> 29 #include <linux/types.h> 30 #include <linux/sched.h> 31 #include <linux/delay.h> 32 #include <linux/timer.h> 33 #include <linux/errno.h> 34 #include <linux/ptrace.h> 35 #include <linux/ioport.h> 36 #include <linux/spinlock.h> 37 #include <linux/moduleparam.h> 38 #include <linux/wait.h> 39 40 #include <linux/skbuff.h> 41 #include <asm/io.h> 42 43 #include <pcmcia/cs_types.h> 44 #include <pcmcia/cs.h> 45 #include <pcmcia/cistpl.h> 46 #include <pcmcia/ciscode.h> 47 #include <pcmcia/ds.h> 48 #include <pcmcia/cisreg.h> 49 50 #include <net/bluetooth/bluetooth.h> 51 #include <net/bluetooth/hci_core.h> 52 53 54 55 /* ======================== Module parameters ======================== */ 56 57 58 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 59 MODULE_DESCRIPTION("Bluetooth driver for the Anycom BlueCard (LSE039/LSE041)"); 60 MODULE_LICENSE("GPL"); 61 62 63 64 /* ======================== Local structures ======================== */ 65 66 67 typedef struct bluecard_info_t { 68 dev_link_t link; 69 dev_node_t node; 70 71 struct hci_dev *hdev; 72 73 spinlock_t lock; /* For serializing operations */ 74 struct timer_list timer; /* For LED control */ 75 76 struct sk_buff_head txq; 77 unsigned long tx_state; 78 79 unsigned long rx_state; 80 unsigned long rx_count; 81 struct sk_buff *rx_skb; 82 83 unsigned char ctrl_reg; 84 unsigned long hw_state; /* Status of the hardware and LED control */ 85 } bluecard_info_t; 86 87 88 static void bluecard_config(dev_link_t *link); 89 static void bluecard_release(dev_link_t *link); 90 91 static void bluecard_detach(struct pcmcia_device *p_dev); 92 93 94 /* Default baud rate: 57600, 115200, 230400 or 460800 */ 95 #define DEFAULT_BAUD_RATE 230400 96 97 98 /* Hardware states */ 99 #define CARD_READY 1 100 #define CARD_HAS_PCCARD_ID 4 101 #define CARD_HAS_POWER_LED 5 102 #define CARD_HAS_ACTIVITY_LED 6 103 104 /* Transmit states */ 105 #define XMIT_SENDING 1 106 #define XMIT_WAKEUP 2 107 #define XMIT_BUFFER_NUMBER 5 /* unset = buffer one, set = buffer two */ 108 #define XMIT_BUF_ONE_READY 6 109 #define XMIT_BUF_TWO_READY 7 110 #define XMIT_SENDING_READY 8 111 112 /* Receiver states */ 113 #define RECV_WAIT_PACKET_TYPE 0 114 #define RECV_WAIT_EVENT_HEADER 1 115 #define RECV_WAIT_ACL_HEADER 2 116 #define RECV_WAIT_SCO_HEADER 3 117 #define RECV_WAIT_DATA 4 118 119 /* Special packet types */ 120 #define PKT_BAUD_RATE_57600 0x80 121 #define PKT_BAUD_RATE_115200 0x81 122 #define PKT_BAUD_RATE_230400 0x82 123 #define PKT_BAUD_RATE_460800 0x83 124 125 126 /* These are the register offsets */ 127 #define REG_COMMAND 0x20 128 #define REG_INTERRUPT 0x21 129 #define REG_CONTROL 0x22 130 #define REG_RX_CONTROL 0x24 131 #define REG_CARD_RESET 0x30 132 #define REG_LED_CTRL 0x30 133 134 /* REG_COMMAND */ 135 #define REG_COMMAND_TX_BUF_ONE 0x01 136 #define REG_COMMAND_TX_BUF_TWO 0x02 137 #define REG_COMMAND_RX_BUF_ONE 0x04 138 #define REG_COMMAND_RX_BUF_TWO 0x08 139 #define REG_COMMAND_RX_WIN_ONE 0x00 140 #define REG_COMMAND_RX_WIN_TWO 0x10 141 142 /* REG_CONTROL */ 143 #define REG_CONTROL_BAUD_RATE_57600 0x00 144 #define REG_CONTROL_BAUD_RATE_115200 0x01 145 #define REG_CONTROL_BAUD_RATE_230400 0x02 146 #define REG_CONTROL_BAUD_RATE_460800 0x03 147 #define REG_CONTROL_RTS 0x04 148 #define REG_CONTROL_BT_ON 0x08 149 #define REG_CONTROL_BT_RESET 0x10 150 #define REG_CONTROL_BT_RES_PU 0x20 151 #define REG_CONTROL_INTERRUPT 0x40 152 #define REG_CONTROL_CARD_RESET 0x80 153 154 /* REG_RX_CONTROL */ 155 #define RTS_LEVEL_SHIFT_BITS 0x02 156 157 158 159 /* ======================== LED handling routines ======================== */ 160 161 162 static void bluecard_activity_led_timeout(u_long arg) 163 { 164 bluecard_info_t *info = (bluecard_info_t *)arg; 165 unsigned int iobase = info->link.io.BasePort1; 166 167 if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) 168 return; 169 170 if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) { 171 /* Disable activity LED */ 172 outb(0x08 | 0x20, iobase + 0x30); 173 } else { 174 /* Disable power LED */ 175 outb(0x00, iobase + 0x30); 176 } 177 } 178 179 180 static void bluecard_enable_activity_led(bluecard_info_t *info) 181 { 182 unsigned int iobase = info->link.io.BasePort1; 183 184 if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) 185 return; 186 187 if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) { 188 /* Enable activity LED */ 189 outb(0x10 | 0x40, iobase + 0x30); 190 191 /* Stop the LED after HZ/4 */ 192 mod_timer(&(info->timer), jiffies + HZ / 4); 193 } else { 194 /* Enable power LED */ 195 outb(0x08 | 0x20, iobase + 0x30); 196 197 /* Stop the LED after HZ/2 */ 198 mod_timer(&(info->timer), jiffies + HZ / 2); 199 } 200 } 201 202 203 204 /* ======================== Interrupt handling ======================== */ 205 206 207 static int bluecard_write(unsigned int iobase, unsigned int offset, __u8 *buf, int len) 208 { 209 int i, actual; 210 211 actual = (len > 15) ? 15 : len; 212 213 outb_p(actual, iobase + offset); 214 215 for (i = 0; i < actual; i++) 216 outb_p(buf[i], iobase + offset + i + 1); 217 218 return actual; 219 } 220 221 222 static void bluecard_write_wakeup(bluecard_info_t *info) 223 { 224 if (!info) { 225 BT_ERR("Unknown device"); 226 return; 227 } 228 229 if (!test_bit(XMIT_SENDING_READY, &(info->tx_state))) 230 return; 231 232 if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) { 233 set_bit(XMIT_WAKEUP, &(info->tx_state)); 234 return; 235 } 236 237 do { 238 register unsigned int iobase = info->link.io.BasePort1; 239 register unsigned int offset; 240 register unsigned char command; 241 register unsigned long ready_bit; 242 register struct sk_buff *skb; 243 register int len; 244 245 clear_bit(XMIT_WAKEUP, &(info->tx_state)); 246 247 if (!(info->link.state & DEV_PRESENT)) 248 return; 249 250 if (test_bit(XMIT_BUFFER_NUMBER, &(info->tx_state))) { 251 if (!test_bit(XMIT_BUF_TWO_READY, &(info->tx_state))) 252 break; 253 offset = 0x10; 254 command = REG_COMMAND_TX_BUF_TWO; 255 ready_bit = XMIT_BUF_TWO_READY; 256 } else { 257 if (!test_bit(XMIT_BUF_ONE_READY, &(info->tx_state))) 258 break; 259 offset = 0x00; 260 command = REG_COMMAND_TX_BUF_ONE; 261 ready_bit = XMIT_BUF_ONE_READY; 262 } 263 264 if (!(skb = skb_dequeue(&(info->txq)))) 265 break; 266 267 if (bt_cb(skb)->pkt_type & 0x80) { 268 /* Disable RTS */ 269 info->ctrl_reg |= REG_CONTROL_RTS; 270 outb(info->ctrl_reg, iobase + REG_CONTROL); 271 } 272 273 /* Activate LED */ 274 bluecard_enable_activity_led(info); 275 276 /* Send frame */ 277 len = bluecard_write(iobase, offset, skb->data, skb->len); 278 279 /* Tell the FPGA to send the data */ 280 outb_p(command, iobase + REG_COMMAND); 281 282 /* Mark the buffer as dirty */ 283 clear_bit(ready_bit, &(info->tx_state)); 284 285 if (bt_cb(skb)->pkt_type & 0x80) { 286 DECLARE_WAIT_QUEUE_HEAD(wq); 287 DEFINE_WAIT(wait); 288 289 unsigned char baud_reg; 290 291 switch (bt_cb(skb)->pkt_type) { 292 case PKT_BAUD_RATE_460800: 293 baud_reg = REG_CONTROL_BAUD_RATE_460800; 294 break; 295 case PKT_BAUD_RATE_230400: 296 baud_reg = REG_CONTROL_BAUD_RATE_230400; 297 break; 298 case PKT_BAUD_RATE_115200: 299 baud_reg = REG_CONTROL_BAUD_RATE_115200; 300 break; 301 case PKT_BAUD_RATE_57600: 302 /* Fall through... */ 303 default: 304 baud_reg = REG_CONTROL_BAUD_RATE_57600; 305 break; 306 } 307 308 /* Wait until the command reaches the baseband */ 309 prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE); 310 schedule_timeout(HZ/10); 311 finish_wait(&wq, &wait); 312 313 /* Set baud on baseband */ 314 info->ctrl_reg &= ~0x03; 315 info->ctrl_reg |= baud_reg; 316 outb(info->ctrl_reg, iobase + REG_CONTROL); 317 318 /* Enable RTS */ 319 info->ctrl_reg &= ~REG_CONTROL_RTS; 320 outb(info->ctrl_reg, iobase + REG_CONTROL); 321 322 /* Wait before the next HCI packet can be send */ 323 prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE); 324 schedule_timeout(HZ); 325 finish_wait(&wq, &wait); 326 } 327 328 if (len == skb->len) { 329 kfree_skb(skb); 330 } else { 331 skb_pull(skb, len); 332 skb_queue_head(&(info->txq), skb); 333 } 334 335 info->hdev->stat.byte_tx += len; 336 337 /* Change buffer */ 338 change_bit(XMIT_BUFFER_NUMBER, &(info->tx_state)); 339 340 } while (test_bit(XMIT_WAKEUP, &(info->tx_state))); 341 342 clear_bit(XMIT_SENDING, &(info->tx_state)); 343 } 344 345 346 static int bluecard_read(unsigned int iobase, unsigned int offset, __u8 *buf, int size) 347 { 348 int i, n, len; 349 350 outb(REG_COMMAND_RX_WIN_ONE, iobase + REG_COMMAND); 351 352 len = inb(iobase + offset); 353 n = 0; 354 i = 1; 355 356 while (n < len) { 357 358 if (i == 16) { 359 outb(REG_COMMAND_RX_WIN_TWO, iobase + REG_COMMAND); 360 i = 0; 361 } 362 363 buf[n] = inb(iobase + offset + i); 364 365 n++; 366 i++; 367 368 } 369 370 return len; 371 } 372 373 374 static void bluecard_receive(bluecard_info_t *info, unsigned int offset) 375 { 376 unsigned int iobase; 377 unsigned char buf[31]; 378 int i, len; 379 380 if (!info) { 381 BT_ERR("Unknown device"); 382 return; 383 } 384 385 iobase = info->link.io.BasePort1; 386 387 if (test_bit(XMIT_SENDING_READY, &(info->tx_state))) 388 bluecard_enable_activity_led(info); 389 390 len = bluecard_read(iobase, offset, buf, sizeof(buf)); 391 392 for (i = 0; i < len; i++) { 393 394 /* Allocate packet */ 395 if (info->rx_skb == NULL) { 396 info->rx_state = RECV_WAIT_PACKET_TYPE; 397 info->rx_count = 0; 398 if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { 399 BT_ERR("Can't allocate mem for new packet"); 400 return; 401 } 402 } 403 404 if (info->rx_state == RECV_WAIT_PACKET_TYPE) { 405 406 info->rx_skb->dev = (void *) info->hdev; 407 bt_cb(info->rx_skb)->pkt_type = buf[i]; 408 409 switch (bt_cb(info->rx_skb)->pkt_type) { 410 411 case 0x00: 412 /* init packet */ 413 if (offset != 0x00) { 414 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); 415 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); 416 set_bit(XMIT_SENDING_READY, &(info->tx_state)); 417 bluecard_write_wakeup(info); 418 } 419 420 kfree_skb(info->rx_skb); 421 info->rx_skb = NULL; 422 break; 423 424 case HCI_EVENT_PKT: 425 info->rx_state = RECV_WAIT_EVENT_HEADER; 426 info->rx_count = HCI_EVENT_HDR_SIZE; 427 break; 428 429 case HCI_ACLDATA_PKT: 430 info->rx_state = RECV_WAIT_ACL_HEADER; 431 info->rx_count = HCI_ACL_HDR_SIZE; 432 break; 433 434 case HCI_SCODATA_PKT: 435 info->rx_state = RECV_WAIT_SCO_HEADER; 436 info->rx_count = HCI_SCO_HDR_SIZE; 437 break; 438 439 default: 440 /* unknown packet */ 441 BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type); 442 info->hdev->stat.err_rx++; 443 444 kfree_skb(info->rx_skb); 445 info->rx_skb = NULL; 446 break; 447 448 } 449 450 } else { 451 452 *skb_put(info->rx_skb, 1) = buf[i]; 453 info->rx_count--; 454 455 if (info->rx_count == 0) { 456 457 int dlen; 458 struct hci_event_hdr *eh; 459 struct hci_acl_hdr *ah; 460 struct hci_sco_hdr *sh; 461 462 switch (info->rx_state) { 463 464 case RECV_WAIT_EVENT_HEADER: 465 eh = (struct hci_event_hdr *)(info->rx_skb->data); 466 info->rx_state = RECV_WAIT_DATA; 467 info->rx_count = eh->plen; 468 break; 469 470 case RECV_WAIT_ACL_HEADER: 471 ah = (struct hci_acl_hdr *)(info->rx_skb->data); 472 dlen = __le16_to_cpu(ah->dlen); 473 info->rx_state = RECV_WAIT_DATA; 474 info->rx_count = dlen; 475 break; 476 477 case RECV_WAIT_SCO_HEADER: 478 sh = (struct hci_sco_hdr *)(info->rx_skb->data); 479 info->rx_state = RECV_WAIT_DATA; 480 info->rx_count = sh->dlen; 481 break; 482 483 case RECV_WAIT_DATA: 484 hci_recv_frame(info->rx_skb); 485 info->rx_skb = NULL; 486 break; 487 488 } 489 490 } 491 492 } 493 494 495 } 496 497 info->hdev->stat.byte_rx += len; 498 } 499 500 501 static irqreturn_t bluecard_interrupt(int irq, void *dev_inst, struct pt_regs *regs) 502 { 503 bluecard_info_t *info = dev_inst; 504 unsigned int iobase; 505 unsigned char reg; 506 507 if (!info || !info->hdev) { 508 BT_ERR("Call of irq %d for unknown device", irq); 509 return IRQ_NONE; 510 } 511 512 if (!test_bit(CARD_READY, &(info->hw_state))) 513 return IRQ_HANDLED; 514 515 iobase = info->link.io.BasePort1; 516 517 spin_lock(&(info->lock)); 518 519 /* Disable interrupt */ 520 info->ctrl_reg &= ~REG_CONTROL_INTERRUPT; 521 outb(info->ctrl_reg, iobase + REG_CONTROL); 522 523 reg = inb(iobase + REG_INTERRUPT); 524 525 if ((reg != 0x00) && (reg != 0xff)) { 526 527 if (reg & 0x04) { 528 bluecard_receive(info, 0x00); 529 outb(0x04, iobase + REG_INTERRUPT); 530 outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND); 531 } 532 533 if (reg & 0x08) { 534 bluecard_receive(info, 0x10); 535 outb(0x08, iobase + REG_INTERRUPT); 536 outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND); 537 } 538 539 if (reg & 0x01) { 540 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); 541 outb(0x01, iobase + REG_INTERRUPT); 542 bluecard_write_wakeup(info); 543 } 544 545 if (reg & 0x02) { 546 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); 547 outb(0x02, iobase + REG_INTERRUPT); 548 bluecard_write_wakeup(info); 549 } 550 551 } 552 553 /* Enable interrupt */ 554 info->ctrl_reg |= REG_CONTROL_INTERRUPT; 555 outb(info->ctrl_reg, iobase + REG_CONTROL); 556 557 spin_unlock(&(info->lock)); 558 559 return IRQ_HANDLED; 560 } 561 562 563 564 /* ======================== Device specific HCI commands ======================== */ 565 566 567 static int bluecard_hci_set_baud_rate(struct hci_dev *hdev, int baud) 568 { 569 bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data); 570 struct sk_buff *skb; 571 572 /* Ericsson baud rate command */ 573 unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 }; 574 575 if (!(skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { 576 BT_ERR("Can't allocate mem for new packet"); 577 return -1; 578 } 579 580 switch (baud) { 581 case 460800: 582 cmd[4] = 0x00; 583 bt_cb(skb)->pkt_type = PKT_BAUD_RATE_460800; 584 break; 585 case 230400: 586 cmd[4] = 0x01; 587 bt_cb(skb)->pkt_type = PKT_BAUD_RATE_230400; 588 break; 589 case 115200: 590 cmd[4] = 0x02; 591 bt_cb(skb)->pkt_type = PKT_BAUD_RATE_115200; 592 break; 593 case 57600: 594 /* Fall through... */ 595 default: 596 cmd[4] = 0x03; 597 bt_cb(skb)->pkt_type = PKT_BAUD_RATE_57600; 598 break; 599 } 600 601 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); 602 603 skb_queue_tail(&(info->txq), skb); 604 605 bluecard_write_wakeup(info); 606 607 return 0; 608 } 609 610 611 612 /* ======================== HCI interface ======================== */ 613 614 615 static int bluecard_hci_flush(struct hci_dev *hdev) 616 { 617 bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data); 618 619 /* Drop TX queue */ 620 skb_queue_purge(&(info->txq)); 621 622 return 0; 623 } 624 625 626 static int bluecard_hci_open(struct hci_dev *hdev) 627 { 628 bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data); 629 unsigned int iobase = info->link.io.BasePort1; 630 631 if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) 632 bluecard_hci_set_baud_rate(hdev, DEFAULT_BAUD_RATE); 633 634 if (test_and_set_bit(HCI_RUNNING, &(hdev->flags))) 635 return 0; 636 637 if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) { 638 /* Enable LED */ 639 outb(0x08 | 0x20, iobase + 0x30); 640 } 641 642 return 0; 643 } 644 645 646 static int bluecard_hci_close(struct hci_dev *hdev) 647 { 648 bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data); 649 unsigned int iobase = info->link.io.BasePort1; 650 651 if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags))) 652 return 0; 653 654 bluecard_hci_flush(hdev); 655 656 if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) { 657 /* Disable LED */ 658 outb(0x00, iobase + 0x30); 659 } 660 661 return 0; 662 } 663 664 665 static int bluecard_hci_send_frame(struct sk_buff *skb) 666 { 667 bluecard_info_t *info; 668 struct hci_dev *hdev = (struct hci_dev *)(skb->dev); 669 670 if (!hdev) { 671 BT_ERR("Frame for unknown HCI device (hdev=NULL)"); 672 return -ENODEV; 673 } 674 675 info = (bluecard_info_t *)(hdev->driver_data); 676 677 switch (bt_cb(skb)->pkt_type) { 678 case HCI_COMMAND_PKT: 679 hdev->stat.cmd_tx++; 680 break; 681 case HCI_ACLDATA_PKT: 682 hdev->stat.acl_tx++; 683 break; 684 case HCI_SCODATA_PKT: 685 hdev->stat.sco_tx++; 686 break; 687 }; 688 689 /* Prepend skb with frame type */ 690 memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); 691 skb_queue_tail(&(info->txq), skb); 692 693 bluecard_write_wakeup(info); 694 695 return 0; 696 } 697 698 699 static void bluecard_hci_destruct(struct hci_dev *hdev) 700 { 701 } 702 703 704 static int bluecard_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) 705 { 706 return -ENOIOCTLCMD; 707 } 708 709 710 711 /* ======================== Card services HCI interaction ======================== */ 712 713 714 static int bluecard_open(bluecard_info_t *info) 715 { 716 unsigned int iobase = info->link.io.BasePort1; 717 struct hci_dev *hdev; 718 unsigned char id; 719 720 spin_lock_init(&(info->lock)); 721 722 init_timer(&(info->timer)); 723 info->timer.function = &bluecard_activity_led_timeout; 724 info->timer.data = (u_long)info; 725 726 skb_queue_head_init(&(info->txq)); 727 728 info->rx_state = RECV_WAIT_PACKET_TYPE; 729 info->rx_count = 0; 730 info->rx_skb = NULL; 731 732 /* Initialize HCI device */ 733 hdev = hci_alloc_dev(); 734 if (!hdev) { 735 BT_ERR("Can't allocate HCI device"); 736 return -ENOMEM; 737 } 738 739 info->hdev = hdev; 740 741 hdev->type = HCI_PCCARD; 742 hdev->driver_data = info; 743 744 hdev->open = bluecard_hci_open; 745 hdev->close = bluecard_hci_close; 746 hdev->flush = bluecard_hci_flush; 747 hdev->send = bluecard_hci_send_frame; 748 hdev->destruct = bluecard_hci_destruct; 749 hdev->ioctl = bluecard_hci_ioctl; 750 751 hdev->owner = THIS_MODULE; 752 753 id = inb(iobase + 0x30); 754 755 if ((id & 0x0f) == 0x02) 756 set_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)); 757 758 if (id & 0x10) 759 set_bit(CARD_HAS_POWER_LED, &(info->hw_state)); 760 761 if (id & 0x20) 762 set_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state)); 763 764 /* Reset card */ 765 info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; 766 outb(info->ctrl_reg, iobase + REG_CONTROL); 767 768 /* Turn FPGA off */ 769 outb(0x80, iobase + 0x30); 770 771 /* Wait some time */ 772 msleep(10); 773 774 /* Turn FPGA on */ 775 outb(0x00, iobase + 0x30); 776 777 /* Activate card */ 778 info->ctrl_reg = REG_CONTROL_BT_ON | REG_CONTROL_BT_RES_PU; 779 outb(info->ctrl_reg, iobase + REG_CONTROL); 780 781 /* Enable interrupt */ 782 outb(0xff, iobase + REG_INTERRUPT); 783 info->ctrl_reg |= REG_CONTROL_INTERRUPT; 784 outb(info->ctrl_reg, iobase + REG_CONTROL); 785 786 if ((id & 0x0f) == 0x03) { 787 /* Disable RTS */ 788 info->ctrl_reg |= REG_CONTROL_RTS; 789 outb(info->ctrl_reg, iobase + REG_CONTROL); 790 791 /* Set baud rate */ 792 info->ctrl_reg |= 0x03; 793 outb(info->ctrl_reg, iobase + REG_CONTROL); 794 795 /* Enable RTS */ 796 info->ctrl_reg &= ~REG_CONTROL_RTS; 797 outb(info->ctrl_reg, iobase + REG_CONTROL); 798 799 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); 800 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); 801 set_bit(XMIT_SENDING_READY, &(info->tx_state)); 802 } 803 804 /* Start the RX buffers */ 805 outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND); 806 outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND); 807 808 /* Signal that the hardware is ready */ 809 set_bit(CARD_READY, &(info->hw_state)); 810 811 /* Drop TX queue */ 812 skb_queue_purge(&(info->txq)); 813 814 /* Control the point at which RTS is enabled */ 815 outb((0x0f << RTS_LEVEL_SHIFT_BITS) | 1, iobase + REG_RX_CONTROL); 816 817 /* Timeout before it is safe to send the first HCI packet */ 818 msleep(1250); 819 820 /* Register HCI device */ 821 if (hci_register_dev(hdev) < 0) { 822 BT_ERR("Can't register HCI device"); 823 info->hdev = NULL; 824 hci_free_dev(hdev); 825 return -ENODEV; 826 } 827 828 return 0; 829 } 830 831 832 static int bluecard_close(bluecard_info_t *info) 833 { 834 unsigned int iobase = info->link.io.BasePort1; 835 struct hci_dev *hdev = info->hdev; 836 837 if (!hdev) 838 return -ENODEV; 839 840 bluecard_hci_close(hdev); 841 842 clear_bit(CARD_READY, &(info->hw_state)); 843 844 /* Reset card */ 845 info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; 846 outb(info->ctrl_reg, iobase + REG_CONTROL); 847 848 /* Turn FPGA off */ 849 outb(0x80, iobase + 0x30); 850 851 if (hci_unregister_dev(hdev) < 0) 852 BT_ERR("Can't unregister HCI device %s", hdev->name); 853 854 hci_free_dev(hdev); 855 856 return 0; 857 } 858 859 static int bluecard_attach(struct pcmcia_device *p_dev) 860 { 861 bluecard_info_t *info; 862 dev_link_t *link; 863 864 /* Create new info device */ 865 info = kzalloc(sizeof(*info), GFP_KERNEL); 866 if (!info) 867 return -ENOMEM; 868 869 link = &info->link; 870 link->priv = info; 871 872 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; 873 link->io.NumPorts1 = 8; 874 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; 875 link->irq.IRQInfo1 = IRQ_LEVEL_ID; 876 877 link->irq.Handler = bluecard_interrupt; 878 link->irq.Instance = info; 879 880 link->conf.Attributes = CONF_ENABLE_IRQ; 881 link->conf.Vcc = 50; 882 link->conf.IntType = INT_MEMORY_AND_IO; 883 884 link->handle = p_dev; 885 p_dev->instance = link; 886 887 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; 888 bluecard_config(link); 889 890 return 0; 891 } 892 893 894 static void bluecard_detach(struct pcmcia_device *p_dev) 895 { 896 dev_link_t *link = dev_to_instance(p_dev); 897 bluecard_info_t *info = link->priv; 898 899 if (link->state & DEV_CONFIG) 900 bluecard_release(link); 901 902 kfree(info); 903 } 904 905 906 static int first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse) 907 { 908 int i; 909 910 i = pcmcia_get_first_tuple(handle, tuple); 911 if (i != CS_SUCCESS) 912 return CS_NO_MORE_ITEMS; 913 914 i = pcmcia_get_tuple_data(handle, tuple); 915 if (i != CS_SUCCESS) 916 return i; 917 918 return pcmcia_parse_tuple(handle, tuple, parse); 919 } 920 921 static void bluecard_config(dev_link_t *link) 922 { 923 client_handle_t handle = link->handle; 924 bluecard_info_t *info = link->priv; 925 tuple_t tuple; 926 u_short buf[256]; 927 cisparse_t parse; 928 config_info_t config; 929 int i, n, last_ret, last_fn; 930 931 tuple.TupleData = (cisdata_t *)buf; 932 tuple.TupleOffset = 0; 933 tuple.TupleDataMax = 255; 934 tuple.Attributes = 0; 935 936 /* Get configuration register information */ 937 tuple.DesiredTuple = CISTPL_CONFIG; 938 last_ret = first_tuple(handle, &tuple, &parse); 939 if (last_ret != CS_SUCCESS) { 940 last_fn = ParseTuple; 941 goto cs_failed; 942 } 943 link->conf.ConfigBase = parse.config.base; 944 link->conf.Present = parse.config.rmask[0]; 945 946 /* Configure card */ 947 link->state |= DEV_CONFIG; 948 i = pcmcia_get_configuration_info(handle, &config); 949 link->conf.Vcc = config.Vcc; 950 951 link->conf.ConfigIndex = 0x20; 952 link->io.NumPorts1 = 64; 953 link->io.IOAddrLines = 6; 954 955 for (n = 0; n < 0x400; n += 0x40) { 956 link->io.BasePort1 = n ^ 0x300; 957 i = pcmcia_request_io(link->handle, &link->io); 958 if (i == CS_SUCCESS) 959 break; 960 } 961 962 if (i != CS_SUCCESS) { 963 cs_error(link->handle, RequestIO, i); 964 goto failed; 965 } 966 967 i = pcmcia_request_irq(link->handle, &link->irq); 968 if (i != CS_SUCCESS) { 969 cs_error(link->handle, RequestIRQ, i); 970 link->irq.AssignedIRQ = 0; 971 } 972 973 i = pcmcia_request_configuration(link->handle, &link->conf); 974 if (i != CS_SUCCESS) { 975 cs_error(link->handle, RequestConfiguration, i); 976 goto failed; 977 } 978 979 if (bluecard_open(info) != 0) 980 goto failed; 981 982 strcpy(info->node.dev_name, info->hdev->name); 983 link->dev = &info->node; 984 link->state &= ~DEV_CONFIG_PENDING; 985 986 return; 987 988 cs_failed: 989 cs_error(link->handle, last_fn, last_ret); 990 991 failed: 992 bluecard_release(link); 993 } 994 995 996 static void bluecard_release(dev_link_t *link) 997 { 998 bluecard_info_t *info = link->priv; 999 1000 if (link->state & DEV_PRESENT) 1001 bluecard_close(info); 1002 1003 del_timer(&(info->timer)); 1004 1005 link->dev = NULL; 1006 1007 pcmcia_release_configuration(link->handle); 1008 pcmcia_release_io(link->handle, &link->io); 1009 pcmcia_release_irq(link->handle, &link->irq); 1010 1011 link->state &= ~DEV_CONFIG; 1012 } 1013 1014 static int bluecard_suspend(struct pcmcia_device *dev) 1015 { 1016 dev_link_t *link = dev_to_instance(dev); 1017 1018 link->state |= DEV_SUSPEND; 1019 if (link->state & DEV_CONFIG) 1020 pcmcia_release_configuration(link->handle); 1021 1022 return 0; 1023 } 1024 1025 static int bluecard_resume(struct pcmcia_device *dev) 1026 { 1027 dev_link_t *link = dev_to_instance(dev); 1028 1029 link->state &= ~DEV_SUSPEND; 1030 if (DEV_OK(link)) 1031 pcmcia_request_configuration(link->handle, &link->conf); 1032 1033 return 0; 1034 } 1035 1036 static struct pcmcia_device_id bluecard_ids[] = { 1037 PCMCIA_DEVICE_PROD_ID12("BlueCard", "LSE041", 0xbaf16fbf, 0x657cc15e), 1038 PCMCIA_DEVICE_PROD_ID12("BTCFCARD", "LSE139", 0xe3987764, 0x2524b59c), 1039 PCMCIA_DEVICE_PROD_ID12("WSS", "LSE039", 0x0a0736ec, 0x24e6dfab), 1040 PCMCIA_DEVICE_NULL 1041 }; 1042 MODULE_DEVICE_TABLE(pcmcia, bluecard_ids); 1043 1044 static struct pcmcia_driver bluecard_driver = { 1045 .owner = THIS_MODULE, 1046 .drv = { 1047 .name = "bluecard_cs", 1048 }, 1049 .probe = bluecard_attach, 1050 .remove = bluecard_detach, 1051 .id_table = bluecard_ids, 1052 .suspend = bluecard_suspend, 1053 .resume = bluecard_resume, 1054 }; 1055 1056 static int __init init_bluecard_cs(void) 1057 { 1058 return pcmcia_register_driver(&bluecard_driver); 1059 } 1060 1061 1062 static void __exit exit_bluecard_cs(void) 1063 { 1064 pcmcia_unregister_driver(&bluecard_driver); 1065 } 1066 1067 module_init(init_bluecard_cs); 1068 module_exit(exit_bluecard_cs); 1069