Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * Driver for the 3Com Bluetooth PCMCIA card |
| 4 | * |
| 5 | * Copyright (C) 2001-2002 Marcel Holtmann <marcel@holtmann.org> |
| 6 | * Jose Orlando Pereira <jop@di.uminho.pt> |
| 7 | * |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License version 2 as |
| 11 | * published by the Free Software Foundation; |
| 12 | * |
| 13 | * Software distributed under the License is distributed on an "AS |
| 14 | * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or |
| 15 | * implied. See the License for the specific language governing |
| 16 | * rights and limitations under the License. |
| 17 | * |
| 18 | * The initial developer of the original code is David A. Hinds |
| 19 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds |
| 20 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. |
| 21 | * |
| 22 | */ |
| 23 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include <linux/delay.h> |
| 31 | #include <linux/errno.h> |
| 32 | #include <linux/ptrace.h> |
| 33 | #include <linux/ioport.h> |
| 34 | #include <linux/spinlock.h> |
| 35 | #include <linux/moduleparam.h> |
| 36 | |
| 37 | #include <linux/skbuff.h> |
| 38 | #include <linux/string.h> |
| 39 | #include <linux/serial.h> |
| 40 | #include <linux/serial_reg.h> |
| 41 | #include <linux/bitops.h> |
| 42 | #include <asm/system.h> |
| 43 | #include <asm/io.h> |
| 44 | |
| 45 | #include <linux/device.h> |
| 46 | #include <linux/firmware.h> |
| 47 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | #include <pcmcia/cs_types.h> |
| 49 | #include <pcmcia/cs.h> |
| 50 | #include <pcmcia/cistpl.h> |
| 51 | #include <pcmcia/ciscode.h> |
| 52 | #include <pcmcia/ds.h> |
| 53 | #include <pcmcia/cisreg.h> |
| 54 | |
| 55 | #include <net/bluetooth/bluetooth.h> |
| 56 | #include <net/bluetooth/hci_core.h> |
| 57 | |
| 58 | |
| 59 | |
| 60 | /* ======================== Module parameters ======================== */ |
| 61 | |
| 62 | |
| 63 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>, Jose Orlando Pereira <jop@di.uminho.pt>"); |
| 64 | MODULE_DESCRIPTION("Bluetooth driver for the 3Com Bluetooth PCMCIA card"); |
| 65 | MODULE_LICENSE("GPL"); |
| 66 | |
| 67 | |
| 68 | |
| 69 | /* ======================== Local structures ======================== */ |
| 70 | |
| 71 | |
| 72 | typedef struct bt3c_info_t { |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 73 | struct pcmcia_device *p_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | dev_node_t node; |
| 75 | |
| 76 | struct hci_dev *hdev; |
| 77 | |
| 78 | spinlock_t lock; /* For serializing operations */ |
| 79 | |
| 80 | struct sk_buff_head txq; |
| 81 | unsigned long tx_state; |
| 82 | |
| 83 | unsigned long rx_state; |
| 84 | unsigned long rx_count; |
| 85 | struct sk_buff *rx_skb; |
| 86 | } bt3c_info_t; |
| 87 | |
| 88 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 89 | static int bt3c_config(struct pcmcia_device *link); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 90 | static void bt3c_release(struct pcmcia_device *link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 92 | static void bt3c_detach(struct pcmcia_device *p_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | |
| 95 | /* Transmit states */ |
| 96 | #define XMIT_SENDING 1 |
| 97 | #define XMIT_WAKEUP 2 |
| 98 | #define XMIT_WAITING 8 |
| 99 | |
| 100 | /* Receiver states */ |
| 101 | #define RECV_WAIT_PACKET_TYPE 0 |
| 102 | #define RECV_WAIT_EVENT_HEADER 1 |
| 103 | #define RECV_WAIT_ACL_HEADER 2 |
| 104 | #define RECV_WAIT_SCO_HEADER 3 |
| 105 | #define RECV_WAIT_DATA 4 |
| 106 | |
| 107 | |
| 108 | |
| 109 | /* ======================== Special I/O functions ======================== */ |
| 110 | |
| 111 | |
| 112 | #define DATA_L 0 |
| 113 | #define DATA_H 1 |
| 114 | #define ADDR_L 2 |
| 115 | #define ADDR_H 3 |
| 116 | #define CONTROL 4 |
| 117 | |
| 118 | |
| 119 | static inline void bt3c_address(unsigned int iobase, unsigned short addr) |
| 120 | { |
| 121 | outb(addr & 0xff, iobase + ADDR_L); |
| 122 | outb((addr >> 8) & 0xff, iobase + ADDR_H); |
| 123 | } |
| 124 | |
| 125 | |
| 126 | static inline void bt3c_put(unsigned int iobase, unsigned short value) |
| 127 | { |
| 128 | outb(value & 0xff, iobase + DATA_L); |
| 129 | outb((value >> 8) & 0xff, iobase + DATA_H); |
| 130 | } |
| 131 | |
| 132 | |
| 133 | static inline void bt3c_io_write(unsigned int iobase, unsigned short addr, unsigned short value) |
| 134 | { |
| 135 | bt3c_address(iobase, addr); |
| 136 | bt3c_put(iobase, value); |
| 137 | } |
| 138 | |
| 139 | |
| 140 | static inline unsigned short bt3c_get(unsigned int iobase) |
| 141 | { |
| 142 | unsigned short value = inb(iobase + DATA_L); |
| 143 | |
| 144 | value |= inb(iobase + DATA_H) << 8; |
| 145 | |
| 146 | return value; |
| 147 | } |
| 148 | |
| 149 | |
| 150 | static inline unsigned short bt3c_read(unsigned int iobase, unsigned short addr) |
| 151 | { |
| 152 | bt3c_address(iobase, addr); |
| 153 | |
| 154 | return bt3c_get(iobase); |
| 155 | } |
| 156 | |
| 157 | |
| 158 | |
| 159 | /* ======================== Interrupt handling ======================== */ |
| 160 | |
| 161 | |
| 162 | static int bt3c_write(unsigned int iobase, int fifo_size, __u8 *buf, int len) |
| 163 | { |
| 164 | int actual = 0; |
| 165 | |
| 166 | bt3c_address(iobase, 0x7080); |
| 167 | |
| 168 | /* Fill FIFO with current frame */ |
| 169 | while (actual < len) { |
| 170 | /* Transmit next byte */ |
| 171 | bt3c_put(iobase, buf[actual]); |
| 172 | actual++; |
| 173 | } |
| 174 | |
| 175 | bt3c_io_write(iobase, 0x7005, actual); |
| 176 | |
| 177 | return actual; |
| 178 | } |
| 179 | |
| 180 | |
| 181 | static void bt3c_write_wakeup(bt3c_info_t *info) |
| 182 | { |
| 183 | if (!info) { |
| 184 | BT_ERR("Unknown device"); |
| 185 | return; |
| 186 | } |
| 187 | |
| 188 | if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) |
| 189 | return; |
| 190 | |
| 191 | do { |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 192 | register unsigned int iobase = info->p_dev->io.BasePort1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | register struct sk_buff *skb; |
| 194 | register int len; |
| 195 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 196 | if (!pcmcia_dev_present(info->p_dev)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | break; |
| 198 | |
| 199 | |
| 200 | if (!(skb = skb_dequeue(&(info->txq)))) { |
| 201 | clear_bit(XMIT_SENDING, &(info->tx_state)); |
| 202 | break; |
| 203 | } |
| 204 | |
| 205 | /* Send frame */ |
| 206 | len = bt3c_write(iobase, 256, skb->data, skb->len); |
| 207 | |
| 208 | if (len != skb->len) { |
| 209 | BT_ERR("Very strange"); |
| 210 | } |
| 211 | |
| 212 | kfree_skb(skb); |
| 213 | |
| 214 | info->hdev->stat.byte_tx += len; |
| 215 | |
| 216 | } while (0); |
| 217 | } |
| 218 | |
| 219 | |
| 220 | static void bt3c_receive(bt3c_info_t *info) |
| 221 | { |
| 222 | unsigned int iobase; |
| 223 | int size = 0, avail; |
| 224 | |
| 225 | if (!info) { |
| 226 | BT_ERR("Unknown device"); |
| 227 | return; |
| 228 | } |
| 229 | |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 230 | iobase = info->p_dev->io.BasePort1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | |
| 232 | avail = bt3c_read(iobase, 0x7006); |
| 233 | //printk("bt3c_cs: receiving %d bytes\n", avail); |
| 234 | |
| 235 | bt3c_address(iobase, 0x7480); |
| 236 | while (size < avail) { |
| 237 | size++; |
| 238 | info->hdev->stat.byte_rx++; |
| 239 | |
| 240 | /* Allocate packet */ |
| 241 | if (info->rx_skb == NULL) { |
| 242 | info->rx_state = RECV_WAIT_PACKET_TYPE; |
| 243 | info->rx_count = 0; |
| 244 | if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { |
| 245 | BT_ERR("Can't allocate mem for new packet"); |
| 246 | return; |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | |
| 251 | if (info->rx_state == RECV_WAIT_PACKET_TYPE) { |
| 252 | |
| 253 | info->rx_skb->dev = (void *) info->hdev; |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 254 | bt_cb(info->rx_skb)->pkt_type = inb(iobase + DATA_L); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | inb(iobase + DATA_H); |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 256 | //printk("bt3c: PACKET_TYPE=%02x\n", bt_cb(info->rx_skb)->pkt_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 258 | switch (bt_cb(info->rx_skb)->pkt_type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | |
| 260 | case HCI_EVENT_PKT: |
| 261 | info->rx_state = RECV_WAIT_EVENT_HEADER; |
| 262 | info->rx_count = HCI_EVENT_HDR_SIZE; |
| 263 | break; |
| 264 | |
| 265 | case HCI_ACLDATA_PKT: |
| 266 | info->rx_state = RECV_WAIT_ACL_HEADER; |
| 267 | info->rx_count = HCI_ACL_HDR_SIZE; |
| 268 | break; |
| 269 | |
| 270 | case HCI_SCODATA_PKT: |
| 271 | info->rx_state = RECV_WAIT_SCO_HEADER; |
| 272 | info->rx_count = HCI_SCO_HDR_SIZE; |
| 273 | break; |
| 274 | |
| 275 | default: |
| 276 | /* Unknown packet */ |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 277 | BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | info->hdev->stat.err_rx++; |
| 279 | clear_bit(HCI_RUNNING, &(info->hdev->flags)); |
| 280 | |
| 281 | kfree_skb(info->rx_skb); |
| 282 | info->rx_skb = NULL; |
| 283 | break; |
| 284 | |
| 285 | } |
| 286 | |
| 287 | } else { |
| 288 | |
| 289 | __u8 x = inb(iobase + DATA_L); |
| 290 | |
| 291 | *skb_put(info->rx_skb, 1) = x; |
| 292 | inb(iobase + DATA_H); |
| 293 | info->rx_count--; |
| 294 | |
| 295 | if (info->rx_count == 0) { |
| 296 | |
| 297 | int dlen; |
| 298 | struct hci_event_hdr *eh; |
| 299 | struct hci_acl_hdr *ah; |
| 300 | struct hci_sco_hdr *sh; |
| 301 | |
| 302 | switch (info->rx_state) { |
| 303 | |
| 304 | case RECV_WAIT_EVENT_HEADER: |
| 305 | eh = (struct hci_event_hdr *)(info->rx_skb->data); |
| 306 | info->rx_state = RECV_WAIT_DATA; |
| 307 | info->rx_count = eh->plen; |
| 308 | break; |
| 309 | |
| 310 | case RECV_WAIT_ACL_HEADER: |
| 311 | ah = (struct hci_acl_hdr *)(info->rx_skb->data); |
| 312 | dlen = __le16_to_cpu(ah->dlen); |
| 313 | info->rx_state = RECV_WAIT_DATA; |
| 314 | info->rx_count = dlen; |
| 315 | break; |
| 316 | |
| 317 | case RECV_WAIT_SCO_HEADER: |
| 318 | sh = (struct hci_sco_hdr *)(info->rx_skb->data); |
| 319 | info->rx_state = RECV_WAIT_DATA; |
| 320 | info->rx_count = sh->dlen; |
| 321 | break; |
| 322 | |
| 323 | case RECV_WAIT_DATA: |
| 324 | hci_recv_frame(info->rx_skb); |
| 325 | info->rx_skb = NULL; |
| 326 | break; |
| 327 | |
| 328 | } |
| 329 | |
| 330 | } |
| 331 | |
| 332 | } |
| 333 | |
| 334 | } |
| 335 | |
| 336 | bt3c_io_write(iobase, 0x7006, 0x0000); |
| 337 | } |
| 338 | |
| 339 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 340 | static irqreturn_t bt3c_interrupt(int irq, void *dev_inst) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | { |
| 342 | bt3c_info_t *info = dev_inst; |
| 343 | unsigned int iobase; |
| 344 | int iir; |
| 345 | |
| 346 | if (!info || !info->hdev) { |
| 347 | BT_ERR("Call of irq %d for unknown device", irq); |
| 348 | return IRQ_NONE; |
| 349 | } |
| 350 | |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 351 | iobase = info->p_dev->io.BasePort1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | |
| 353 | spin_lock(&(info->lock)); |
| 354 | |
| 355 | iir = inb(iobase + CONTROL); |
| 356 | if (iir & 0x80) { |
| 357 | int stat = bt3c_read(iobase, 0x7001); |
| 358 | |
| 359 | if ((stat & 0xff) == 0x7f) { |
| 360 | BT_ERR("Very strange (stat=0x%04x)", stat); |
| 361 | } else if ((stat & 0xff) != 0xff) { |
| 362 | if (stat & 0x0020) { |
| 363 | int stat = bt3c_read(iobase, 0x7002) & 0x10; |
| 364 | BT_INFO("%s: Antenna %s", info->hdev->name, |
| 365 | stat ? "out" : "in"); |
| 366 | } |
| 367 | if (stat & 0x0001) |
| 368 | bt3c_receive(info); |
| 369 | if (stat & 0x0002) { |
| 370 | //BT_ERR("Ack (stat=0x%04x)", stat); |
| 371 | clear_bit(XMIT_SENDING, &(info->tx_state)); |
| 372 | bt3c_write_wakeup(info); |
| 373 | } |
| 374 | |
| 375 | bt3c_io_write(iobase, 0x7001, 0x0000); |
| 376 | |
| 377 | outb(iir, iobase + CONTROL); |
| 378 | } |
| 379 | } |
| 380 | |
| 381 | spin_unlock(&(info->lock)); |
| 382 | |
| 383 | return IRQ_HANDLED; |
| 384 | } |
| 385 | |
| 386 | |
| 387 | |
| 388 | /* ======================== HCI interface ======================== */ |
| 389 | |
| 390 | |
| 391 | static int bt3c_hci_flush(struct hci_dev *hdev) |
| 392 | { |
| 393 | bt3c_info_t *info = (bt3c_info_t *)(hdev->driver_data); |
| 394 | |
| 395 | /* Drop TX queue */ |
| 396 | skb_queue_purge(&(info->txq)); |
| 397 | |
| 398 | return 0; |
| 399 | } |
| 400 | |
| 401 | |
| 402 | static int bt3c_hci_open(struct hci_dev *hdev) |
| 403 | { |
| 404 | set_bit(HCI_RUNNING, &(hdev->flags)); |
| 405 | |
| 406 | return 0; |
| 407 | } |
| 408 | |
| 409 | |
| 410 | static int bt3c_hci_close(struct hci_dev *hdev) |
| 411 | { |
| 412 | if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags))) |
| 413 | return 0; |
| 414 | |
| 415 | bt3c_hci_flush(hdev); |
| 416 | |
| 417 | return 0; |
| 418 | } |
| 419 | |
| 420 | |
| 421 | static int bt3c_hci_send_frame(struct sk_buff *skb) |
| 422 | { |
| 423 | bt3c_info_t *info; |
| 424 | struct hci_dev *hdev = (struct hci_dev *)(skb->dev); |
| 425 | unsigned long flags; |
| 426 | |
| 427 | if (!hdev) { |
| 428 | BT_ERR("Frame for unknown HCI device (hdev=NULL)"); |
| 429 | return -ENODEV; |
| 430 | } |
| 431 | |
| 432 | info = (bt3c_info_t *) (hdev->driver_data); |
| 433 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 434 | switch (bt_cb(skb)->pkt_type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | case HCI_COMMAND_PKT: |
| 436 | hdev->stat.cmd_tx++; |
| 437 | break; |
| 438 | case HCI_ACLDATA_PKT: |
| 439 | hdev->stat.acl_tx++; |
| 440 | break; |
| 441 | case HCI_SCODATA_PKT: |
| 442 | hdev->stat.sco_tx++; |
| 443 | break; |
| 444 | }; |
| 445 | |
| 446 | /* Prepend skb with frame type */ |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 447 | memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | skb_queue_tail(&(info->txq), skb); |
| 449 | |
| 450 | spin_lock_irqsave(&(info->lock), flags); |
| 451 | |
| 452 | bt3c_write_wakeup(info); |
| 453 | |
| 454 | spin_unlock_irqrestore(&(info->lock), flags); |
| 455 | |
| 456 | return 0; |
| 457 | } |
| 458 | |
| 459 | |
| 460 | static void bt3c_hci_destruct(struct hci_dev *hdev) |
| 461 | { |
| 462 | } |
| 463 | |
| 464 | |
| 465 | static int bt3c_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) |
| 466 | { |
| 467 | return -ENOIOCTLCMD; |
| 468 | } |
| 469 | |
| 470 | |
| 471 | |
| 472 | /* ======================== Card services HCI interaction ======================== */ |
| 473 | |
| 474 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | static int bt3c_load_firmware(bt3c_info_t *info, unsigned char *firmware, int count) |
| 476 | { |
| 477 | char *ptr = (char *) firmware; |
| 478 | char b[9]; |
| 479 | unsigned int iobase, size, addr, fcs, tmp; |
| 480 | int i, err = 0; |
| 481 | |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 482 | iobase = info->p_dev->io.BasePort1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | |
| 484 | /* Reset */ |
| 485 | bt3c_io_write(iobase, 0x8040, 0x0404); |
| 486 | bt3c_io_write(iobase, 0x8040, 0x0400); |
| 487 | |
| 488 | udelay(1); |
| 489 | |
| 490 | bt3c_io_write(iobase, 0x8040, 0x0404); |
| 491 | |
| 492 | udelay(17); |
| 493 | |
| 494 | /* Load */ |
| 495 | while (count) { |
| 496 | if (ptr[0] != 'S') { |
| 497 | BT_ERR("Bad address in firmware"); |
| 498 | err = -EFAULT; |
| 499 | goto error; |
| 500 | } |
| 501 | |
| 502 | memset(b, 0, sizeof(b)); |
| 503 | memcpy(b, ptr + 2, 2); |
| 504 | size = simple_strtol(b, NULL, 16); |
| 505 | |
| 506 | memset(b, 0, sizeof(b)); |
| 507 | memcpy(b, ptr + 4, 8); |
| 508 | addr = simple_strtol(b, NULL, 16); |
| 509 | |
| 510 | memset(b, 0, sizeof(b)); |
| 511 | memcpy(b, ptr + (size * 2) + 2, 2); |
| 512 | fcs = simple_strtol(b, NULL, 16); |
| 513 | |
| 514 | memset(b, 0, sizeof(b)); |
| 515 | for (tmp = 0, i = 0; i < size; i++) { |
| 516 | memcpy(b, ptr + (i * 2) + 2, 2); |
| 517 | tmp += simple_strtol(b, NULL, 16); |
| 518 | } |
| 519 | |
| 520 | if (((tmp + fcs) & 0xff) != 0xff) { |
| 521 | BT_ERR("Checksum error in firmware"); |
| 522 | err = -EILSEQ; |
| 523 | goto error; |
| 524 | } |
| 525 | |
| 526 | if (ptr[1] == '3') { |
| 527 | bt3c_address(iobase, addr); |
| 528 | |
| 529 | memset(b, 0, sizeof(b)); |
| 530 | for (i = 0; i < (size - 4) / 2; i++) { |
| 531 | memcpy(b, ptr + (i * 4) + 12, 4); |
| 532 | tmp = simple_strtol(b, NULL, 16); |
| 533 | bt3c_put(iobase, tmp); |
| 534 | } |
| 535 | } |
| 536 | |
| 537 | ptr += (size * 2) + 6; |
| 538 | count -= (size * 2) + 6; |
| 539 | } |
| 540 | |
| 541 | udelay(17); |
| 542 | |
| 543 | /* Boot */ |
| 544 | bt3c_address(iobase, 0x3000); |
| 545 | outb(inb(iobase + CONTROL) | 0x40, iobase + CONTROL); |
| 546 | |
| 547 | error: |
| 548 | udelay(17); |
| 549 | |
| 550 | /* Clear */ |
| 551 | bt3c_io_write(iobase, 0x7006, 0x0000); |
| 552 | bt3c_io_write(iobase, 0x7005, 0x0000); |
| 553 | bt3c_io_write(iobase, 0x7001, 0x0000); |
| 554 | |
| 555 | return err; |
| 556 | } |
| 557 | |
| 558 | |
| 559 | static int bt3c_open(bt3c_info_t *info) |
| 560 | { |
| 561 | const struct firmware *firmware; |
| 562 | struct hci_dev *hdev; |
| 563 | int err; |
| 564 | |
| 565 | spin_lock_init(&(info->lock)); |
| 566 | |
| 567 | skb_queue_head_init(&(info->txq)); |
| 568 | |
| 569 | info->rx_state = RECV_WAIT_PACKET_TYPE; |
| 570 | info->rx_count = 0; |
| 571 | info->rx_skb = NULL; |
| 572 | |
| 573 | /* Initialize HCI device */ |
| 574 | hdev = hci_alloc_dev(); |
| 575 | if (!hdev) { |
| 576 | BT_ERR("Can't allocate HCI device"); |
| 577 | return -ENOMEM; |
| 578 | } |
| 579 | |
| 580 | info->hdev = hdev; |
| 581 | |
| 582 | hdev->type = HCI_PCCARD; |
| 583 | hdev->driver_data = info; |
Marcel Holtmann | 27d3528 | 2006-07-03 10:02:37 +0200 | [diff] [blame] | 584 | SET_HCIDEV_DEV(hdev, &info->p_dev->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | |
| 586 | hdev->open = bt3c_hci_open; |
| 587 | hdev->close = bt3c_hci_close; |
| 588 | hdev->flush = bt3c_hci_flush; |
| 589 | hdev->send = bt3c_hci_send_frame; |
| 590 | hdev->destruct = bt3c_hci_destruct; |
| 591 | hdev->ioctl = bt3c_hci_ioctl; |
| 592 | |
| 593 | hdev->owner = THIS_MODULE; |
| 594 | |
| 595 | /* Load firmware */ |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 596 | err = request_firmware(&firmware, "BT3CPCC.bin", &info->p_dev->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | if (err < 0) { |
| 598 | BT_ERR("Firmware request failed"); |
| 599 | goto error; |
| 600 | } |
| 601 | |
| 602 | err = bt3c_load_firmware(info, firmware->data, firmware->size); |
| 603 | |
| 604 | release_firmware(firmware); |
| 605 | |
| 606 | if (err < 0) { |
| 607 | BT_ERR("Firmware loading failed"); |
| 608 | goto error; |
| 609 | } |
| 610 | |
| 611 | /* Timeout before it is safe to send the first HCI packet */ |
| 612 | msleep(1000); |
| 613 | |
| 614 | /* Register HCI device */ |
| 615 | err = hci_register_dev(hdev); |
| 616 | if (err < 0) { |
| 617 | BT_ERR("Can't register HCI device"); |
| 618 | goto error; |
| 619 | } |
| 620 | |
| 621 | return 0; |
| 622 | |
| 623 | error: |
| 624 | info->hdev = NULL; |
| 625 | hci_free_dev(hdev); |
| 626 | return err; |
| 627 | } |
| 628 | |
| 629 | |
| 630 | static int bt3c_close(bt3c_info_t *info) |
| 631 | { |
| 632 | struct hci_dev *hdev = info->hdev; |
| 633 | |
| 634 | if (!hdev) |
| 635 | return -ENODEV; |
| 636 | |
| 637 | bt3c_hci_close(hdev); |
| 638 | |
| 639 | if (hci_unregister_dev(hdev) < 0) |
| 640 | BT_ERR("Can't unregister HCI device %s", hdev->name); |
| 641 | |
| 642 | hci_free_dev(hdev); |
| 643 | |
| 644 | return 0; |
| 645 | } |
| 646 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 647 | static int bt3c_probe(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | { |
| 649 | bt3c_info_t *info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | |
| 651 | /* Create new info device */ |
Deepak Saxena | 089b1db | 2005-11-07 01:01:26 -0800 | [diff] [blame] | 652 | info = kzalloc(sizeof(*info), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | if (!info) |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 654 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 656 | info->p_dev = link; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | link->priv = info; |
| 658 | |
| 659 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; |
| 660 | link->io.NumPorts1 = 8; |
| 661 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; |
| 662 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; |
| 663 | |
| 664 | link->irq.Handler = bt3c_interrupt; |
| 665 | link->irq.Instance = info; |
| 666 | |
| 667 | link->conf.Attributes = CONF_ENABLE_IRQ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | link->conf.IntType = INT_MEMORY_AND_IO; |
| 669 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 670 | return bt3c_config(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | } |
| 672 | |
| 673 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 674 | static void bt3c_detach(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | { |
| 676 | bt3c_info_t *info = link->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 677 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 678 | bt3c_release(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 679 | kfree(info); |
| 680 | } |
| 681 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 682 | static int get_tuple(struct pcmcia_device *handle, tuple_t *tuple, cisparse_t *parse) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | { |
| 684 | int i; |
| 685 | |
| 686 | i = pcmcia_get_tuple_data(handle, tuple); |
| 687 | if (i != CS_SUCCESS) |
| 688 | return i; |
| 689 | |
| 690 | return pcmcia_parse_tuple(handle, tuple, parse); |
| 691 | } |
| 692 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 693 | static int first_tuple(struct pcmcia_device *handle, tuple_t *tuple, cisparse_t *parse) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | { |
| 695 | if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS) |
| 696 | return CS_NO_MORE_ITEMS; |
| 697 | return get_tuple(handle, tuple, parse); |
| 698 | } |
| 699 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 700 | static int next_tuple(struct pcmcia_device *handle, tuple_t *tuple, cisparse_t *parse) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | { |
| 702 | if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS) |
| 703 | return CS_NO_MORE_ITEMS; |
| 704 | return get_tuple(handle, tuple, parse); |
| 705 | } |
| 706 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 707 | static int bt3c_config(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | { |
| 709 | static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 710 | bt3c_info_t *info = link->priv; |
| 711 | tuple_t tuple; |
| 712 | u_short buf[256]; |
| 713 | cisparse_t parse; |
| 714 | cistpl_cftable_entry_t *cf = &parse.cftable_entry; |
Dominik Brodowski | af2b3b5 | 2006-10-25 21:49:27 -0400 | [diff] [blame] | 715 | int i, j, try; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | /* First pass: look for a config entry that looks normal. */ |
| 718 | tuple.TupleData = (cisdata_t *)buf; |
| 719 | tuple.TupleOffset = 0; |
| 720 | tuple.TupleDataMax = 255; |
| 721 | tuple.Attributes = 0; |
| 722 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; |
| 723 | /* Two tries: without IO aliases, then with aliases */ |
| 724 | for (try = 0; try < 2; try++) { |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 725 | i = first_tuple(link, &tuple, &parse); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 726 | while (i != CS_NO_MORE_ITEMS) { |
| 727 | if (i != CS_SUCCESS) |
| 728 | goto next_entry; |
| 729 | if (cf->vpp1.present & (1 << CISTPL_POWER_VNOM)) |
Dominik Brodowski | 70294b4 | 2006-01-15 12:43:16 +0100 | [diff] [blame] | 730 | link->conf.Vpp = cf->vpp1.param[CISTPL_POWER_VNOM] / 10000; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 731 | if ((cf->io.nwin > 0) && (cf->io.win[0].len == 8) && (cf->io.win[0].base != 0)) { |
| 732 | link->conf.ConfigIndex = cf->index; |
| 733 | link->io.BasePort1 = cf->io.win[0].base; |
| 734 | link->io.IOAddrLines = (try == 0) ? 16 : cf->io.flags & CISTPL_IO_LINES_MASK; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 735 | i = pcmcia_request_io(link, &link->io); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 736 | if (i == CS_SUCCESS) |
| 737 | goto found_port; |
| 738 | } |
| 739 | next_entry: |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 740 | i = next_tuple(link, &tuple, &parse); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | } |
| 742 | } |
| 743 | |
| 744 | /* Second pass: try to find an entry that isn't picky about |
| 745 | its base address, then try to grab any standard serial port |
| 746 | address, and finally try to get any free port. */ |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 747 | i = first_tuple(link, &tuple, &parse); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | while (i != CS_NO_MORE_ITEMS) { |
| 749 | if ((i == CS_SUCCESS) && (cf->io.nwin > 0) && ((cf->io.flags & CISTPL_IO_LINES_MASK) <= 3)) { |
| 750 | link->conf.ConfigIndex = cf->index; |
| 751 | for (j = 0; j < 5; j++) { |
| 752 | link->io.BasePort1 = base[j]; |
| 753 | link->io.IOAddrLines = base[j] ? 16 : 3; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 754 | i = pcmcia_request_io(link, &link->io); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 755 | if (i == CS_SUCCESS) |
| 756 | goto found_port; |
| 757 | } |
| 758 | } |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 759 | i = next_tuple(link, &tuple, &parse); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | } |
| 761 | |
| 762 | found_port: |
| 763 | if (i != CS_SUCCESS) { |
| 764 | BT_ERR("No usable port range found"); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 765 | cs_error(link, RequestIO, i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | goto failed; |
| 767 | } |
| 768 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 769 | i = pcmcia_request_irq(link, &link->irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 770 | if (i != CS_SUCCESS) { |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 771 | cs_error(link, RequestIRQ, i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | link->irq.AssignedIRQ = 0; |
| 773 | } |
| 774 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 775 | i = pcmcia_request_configuration(link, &link->conf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 776 | if (i != CS_SUCCESS) { |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 777 | cs_error(link, RequestConfiguration, i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 778 | goto failed; |
| 779 | } |
| 780 | |
| 781 | if (bt3c_open(info) != 0) |
| 782 | goto failed; |
| 783 | |
| 784 | strcpy(info->node.dev_name, info->hdev->name); |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 785 | link->dev_node = &info->node; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 786 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 787 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 788 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 789 | failed: |
| 790 | bt3c_release(link); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 791 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 792 | } |
| 793 | |
| 794 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 795 | static void bt3c_release(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 796 | { |
| 797 | bt3c_info_t *info = link->priv; |
| 798 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 799 | bt3c_close(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 800 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 801 | pcmcia_disable_device(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 802 | } |
| 803 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 804 | |
Dominik Brodowski | a01c3ed | 2005-06-27 16:28:37 -0700 | [diff] [blame] | 805 | static struct pcmcia_device_id bt3c_ids[] = { |
| 806 | PCMCIA_DEVICE_PROD_ID13("3COM", "Bluetooth PC Card", 0xefce0a31, 0xd4ce9b02), |
| 807 | PCMCIA_DEVICE_NULL |
| 808 | }; |
| 809 | MODULE_DEVICE_TABLE(pcmcia, bt3c_ids); |
| 810 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | static struct pcmcia_driver bt3c_driver = { |
| 812 | .owner = THIS_MODULE, |
| 813 | .drv = { |
| 814 | .name = "bt3c_cs", |
| 815 | }, |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 816 | .probe = bt3c_probe, |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 817 | .remove = bt3c_detach, |
Dominik Brodowski | a01c3ed | 2005-06-27 16:28:37 -0700 | [diff] [blame] | 818 | .id_table = bt3c_ids, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 819 | }; |
| 820 | |
| 821 | static int __init init_bt3c_cs(void) |
| 822 | { |
| 823 | return pcmcia_register_driver(&bt3c_driver); |
| 824 | } |
| 825 | |
| 826 | |
| 827 | static void __exit exit_bt3c_cs(void) |
| 828 | { |
| 829 | pcmcia_unregister_driver(&bt3c_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | } |
| 831 | |
| 832 | module_init(init_bt3c_cs); |
| 833 | module_exit(exit_bt3c_cs); |