Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Cody Rester | c89827e | 2010-07-01 21:27:44 -0700 | [diff] [blame] | 40 | #include <linux/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 64 | struct bluecard_info { |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 65 | struct pcmcia_device *p_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 */ |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 81 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | |
| 83 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 84 | static int bluecard_config(struct pcmcia_device *link); |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 85 | static void bluecard_release(struct pcmcia_device *link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 87 | static void bluecard_detach(struct pcmcia_device *p_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 160 | struct bluecard_info *info = (struct bluecard_info *)arg; |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 161 | unsigned int iobase = info->p_dev->resource[0]->start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 176 | static void bluecard_enable_activity_led(struct bluecard_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | { |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 178 | unsigned int iobase = info->p_dev->resource[0]->start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 218 | static void bluecard_write_wakeup(struct bluecard_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 { |
Gustavo Padovan | fc5fef6 | 2012-05-23 04:04:19 -0300 | [diff] [blame] | 234 | unsigned int iobase = info->p_dev->resource[0]->start; |
| 235 | unsigned int offset; |
| 236 | unsigned char command; |
| 237 | unsigned long ready_bit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | register struct sk_buff *skb; |
Gustavo Padovan | fc5fef6 | 2012-05-23 04:04:19 -0300 | [diff] [blame] | 239 | int len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | |
| 241 | clear_bit(XMIT_WAKEUP, &(info->tx_state)); |
| 242 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 243 | if (!pcmcia_dev_present(info->p_dev)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Valentin Ilie | a08b15e | 2013-08-12 18:46:00 +0300 | [diff] [blame] | 260 | skb = skb_dequeue(&(info->txq)); |
| 261 | if (!skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | break; |
| 263 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 264 | if (bt_cb(skb)->pkt_type & 0x80) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | /* Disable RTS */ |
| 266 | info->ctrl_reg |= REG_CONTROL_RTS; |
| 267 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 268 | } |
| 269 | |
| 270 | /* Activate LED */ |
| 271 | bluecard_enable_activity_led(info); |
| 272 | |
| 273 | /* Send frame */ |
| 274 | len = bluecard_write(iobase, offset, skb->data, skb->len); |
| 275 | |
| 276 | /* Tell the FPGA to send the data */ |
| 277 | outb_p(command, iobase + REG_COMMAND); |
| 278 | |
| 279 | /* Mark the buffer as dirty */ |
| 280 | clear_bit(ready_bit, &(info->tx_state)); |
| 281 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 282 | if (bt_cb(skb)->pkt_type & 0x80) { |
Peter Zijlstra | 7259f0d | 2006-10-29 22:46:36 -0800 | [diff] [blame] | 283 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | DEFINE_WAIT(wait); |
| 285 | |
| 286 | unsigned char baud_reg; |
| 287 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 288 | switch (bt_cb(skb)->pkt_type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | case PKT_BAUD_RATE_460800: |
| 290 | baud_reg = REG_CONTROL_BAUD_RATE_460800; |
| 291 | break; |
| 292 | case PKT_BAUD_RATE_230400: |
| 293 | baud_reg = REG_CONTROL_BAUD_RATE_230400; |
| 294 | break; |
| 295 | case PKT_BAUD_RATE_115200: |
| 296 | baud_reg = REG_CONTROL_BAUD_RATE_115200; |
| 297 | break; |
| 298 | case PKT_BAUD_RATE_57600: |
| 299 | /* Fall through... */ |
| 300 | default: |
| 301 | baud_reg = REG_CONTROL_BAUD_RATE_57600; |
| 302 | break; |
| 303 | } |
| 304 | |
| 305 | /* Wait until the command reaches the baseband */ |
| 306 | prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE); |
| 307 | schedule_timeout(HZ/10); |
| 308 | finish_wait(&wq, &wait); |
| 309 | |
| 310 | /* Set baud on baseband */ |
| 311 | info->ctrl_reg &= ~0x03; |
| 312 | info->ctrl_reg |= baud_reg; |
| 313 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 314 | |
| 315 | /* Enable RTS */ |
| 316 | info->ctrl_reg &= ~REG_CONTROL_RTS; |
| 317 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 318 | |
| 319 | /* Wait before the next HCI packet can be send */ |
| 320 | prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE); |
| 321 | schedule_timeout(HZ); |
| 322 | finish_wait(&wq, &wait); |
| 323 | } |
| 324 | |
| 325 | if (len == skb->len) { |
| 326 | kfree_skb(skb); |
| 327 | } else { |
| 328 | skb_pull(skb, len); |
| 329 | skb_queue_head(&(info->txq), skb); |
| 330 | } |
| 331 | |
| 332 | info->hdev->stat.byte_tx += len; |
| 333 | |
| 334 | /* Change buffer */ |
| 335 | change_bit(XMIT_BUFFER_NUMBER, &(info->tx_state)); |
| 336 | |
| 337 | } while (test_bit(XMIT_WAKEUP, &(info->tx_state))); |
| 338 | |
| 339 | clear_bit(XMIT_SENDING, &(info->tx_state)); |
| 340 | } |
| 341 | |
| 342 | |
| 343 | static int bluecard_read(unsigned int iobase, unsigned int offset, __u8 *buf, int size) |
| 344 | { |
| 345 | int i, n, len; |
| 346 | |
| 347 | outb(REG_COMMAND_RX_WIN_ONE, iobase + REG_COMMAND); |
| 348 | |
| 349 | len = inb(iobase + offset); |
| 350 | n = 0; |
| 351 | i = 1; |
| 352 | |
| 353 | while (n < len) { |
| 354 | |
| 355 | if (i == 16) { |
| 356 | outb(REG_COMMAND_RX_WIN_TWO, iobase + REG_COMMAND); |
| 357 | i = 0; |
| 358 | } |
| 359 | |
| 360 | buf[n] = inb(iobase + offset + i); |
| 361 | |
| 362 | n++; |
| 363 | i++; |
| 364 | |
| 365 | } |
| 366 | |
| 367 | return len; |
| 368 | } |
| 369 | |
| 370 | |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 371 | static void bluecard_receive(struct bluecard_info *info, |
| 372 | unsigned int offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | { |
| 374 | unsigned int iobase; |
| 375 | unsigned char buf[31]; |
| 376 | int i, len; |
| 377 | |
| 378 | if (!info) { |
| 379 | BT_ERR("Unknown device"); |
| 380 | return; |
| 381 | } |
| 382 | |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 383 | iobase = info->p_dev->resource[0]->start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | |
| 385 | if (test_bit(XMIT_SENDING_READY, &(info->tx_state))) |
| 386 | bluecard_enable_activity_led(info); |
| 387 | |
| 388 | len = bluecard_read(iobase, offset, buf, sizeof(buf)); |
| 389 | |
| 390 | for (i = 0; i < len; i++) { |
| 391 | |
| 392 | /* Allocate packet */ |
| 393 | if (info->rx_skb == NULL) { |
| 394 | info->rx_state = RECV_WAIT_PACKET_TYPE; |
| 395 | info->rx_count = 0; |
Valentin Ilie | a08b15e | 2013-08-12 18:46:00 +0300 | [diff] [blame] | 396 | info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); |
| 397 | if (!info->rx_skb) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | BT_ERR("Can't allocate mem for new packet"); |
| 399 | return; |
| 400 | } |
| 401 | } |
| 402 | |
| 403 | if (info->rx_state == RECV_WAIT_PACKET_TYPE) { |
| 404 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 405 | bt_cb(info->rx_skb)->pkt_type = buf[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 407 | switch (bt_cb(info->rx_skb)->pkt_type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | |
| 409 | case 0x00: |
| 410 | /* init packet */ |
| 411 | if (offset != 0x00) { |
| 412 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); |
| 413 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); |
| 414 | set_bit(XMIT_SENDING_READY, &(info->tx_state)); |
| 415 | bluecard_write_wakeup(info); |
| 416 | } |
| 417 | |
| 418 | kfree_skb(info->rx_skb); |
| 419 | info->rx_skb = NULL; |
| 420 | break; |
| 421 | |
| 422 | case HCI_EVENT_PKT: |
| 423 | info->rx_state = RECV_WAIT_EVENT_HEADER; |
| 424 | info->rx_count = HCI_EVENT_HDR_SIZE; |
| 425 | break; |
| 426 | |
| 427 | case HCI_ACLDATA_PKT: |
| 428 | info->rx_state = RECV_WAIT_ACL_HEADER; |
| 429 | info->rx_count = HCI_ACL_HDR_SIZE; |
| 430 | break; |
| 431 | |
| 432 | case HCI_SCODATA_PKT: |
| 433 | info->rx_state = RECV_WAIT_SCO_HEADER; |
| 434 | info->rx_count = HCI_SCO_HDR_SIZE; |
| 435 | break; |
| 436 | |
| 437 | default: |
| 438 | /* unknown packet */ |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 439 | 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] | 440 | info->hdev->stat.err_rx++; |
| 441 | |
| 442 | kfree_skb(info->rx_skb); |
| 443 | info->rx_skb = NULL; |
| 444 | break; |
| 445 | |
| 446 | } |
| 447 | |
| 448 | } else { |
| 449 | |
| 450 | *skb_put(info->rx_skb, 1) = buf[i]; |
| 451 | info->rx_count--; |
| 452 | |
| 453 | if (info->rx_count == 0) { |
| 454 | |
| 455 | int dlen; |
| 456 | struct hci_event_hdr *eh; |
| 457 | struct hci_acl_hdr *ah; |
| 458 | struct hci_sco_hdr *sh; |
| 459 | |
| 460 | switch (info->rx_state) { |
| 461 | |
| 462 | case RECV_WAIT_EVENT_HEADER: |
Arnaldo Carvalho de Melo | 2a123b8 | 2007-03-27 18:38:07 -0300 | [diff] [blame] | 463 | eh = hci_event_hdr(info->rx_skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | info->rx_state = RECV_WAIT_DATA; |
| 465 | info->rx_count = eh->plen; |
| 466 | break; |
| 467 | |
| 468 | case RECV_WAIT_ACL_HEADER: |
Arnaldo Carvalho de Melo | 2a123b8 | 2007-03-27 18:38:07 -0300 | [diff] [blame] | 469 | ah = hci_acl_hdr(info->rx_skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | dlen = __le16_to_cpu(ah->dlen); |
| 471 | info->rx_state = RECV_WAIT_DATA; |
| 472 | info->rx_count = dlen; |
| 473 | break; |
| 474 | |
| 475 | case RECV_WAIT_SCO_HEADER: |
Arnaldo Carvalho de Melo | 2a123b8 | 2007-03-27 18:38:07 -0300 | [diff] [blame] | 476 | sh = hci_sco_hdr(info->rx_skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | info->rx_state = RECV_WAIT_DATA; |
| 478 | info->rx_count = sh->dlen; |
| 479 | break; |
| 480 | |
| 481 | case RECV_WAIT_DATA: |
Marcel Holtmann | e1a2617 | 2013-10-10 16:52:43 -0700 | [diff] [blame] | 482 | hci_recv_frame(info->hdev, info->rx_skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | info->rx_skb = NULL; |
| 484 | break; |
| 485 | |
| 486 | } |
| 487 | |
| 488 | } |
| 489 | |
| 490 | } |
| 491 | |
| 492 | |
| 493 | } |
| 494 | |
| 495 | info->hdev->stat.byte_rx += len; |
| 496 | } |
| 497 | |
| 498 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 499 | static irqreturn_t bluecard_interrupt(int irq, void *dev_inst) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 501 | struct bluecard_info *info = dev_inst; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | unsigned int iobase; |
| 503 | unsigned char reg; |
| 504 | |
Mike Frysinger | 7427847 | 2009-09-14 13:43:49 -0400 | [diff] [blame] | 505 | if (!info || !info->hdev) |
| 506 | /* our irq handler is shared */ |
| 507 | return IRQ_NONE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | |
| 509 | if (!test_bit(CARD_READY, &(info->hw_state))) |
| 510 | return IRQ_HANDLED; |
| 511 | |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 512 | iobase = info->p_dev->resource[0]->start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | |
| 514 | spin_lock(&(info->lock)); |
| 515 | |
| 516 | /* Disable interrupt */ |
| 517 | info->ctrl_reg &= ~REG_CONTROL_INTERRUPT; |
| 518 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 519 | |
| 520 | reg = inb(iobase + REG_INTERRUPT); |
| 521 | |
| 522 | if ((reg != 0x00) && (reg != 0xff)) { |
| 523 | |
| 524 | if (reg & 0x04) { |
| 525 | bluecard_receive(info, 0x00); |
| 526 | outb(0x04, iobase + REG_INTERRUPT); |
| 527 | outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND); |
| 528 | } |
| 529 | |
| 530 | if (reg & 0x08) { |
| 531 | bluecard_receive(info, 0x10); |
| 532 | outb(0x08, iobase + REG_INTERRUPT); |
| 533 | outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND); |
| 534 | } |
| 535 | |
| 536 | if (reg & 0x01) { |
| 537 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); |
| 538 | outb(0x01, iobase + REG_INTERRUPT); |
| 539 | bluecard_write_wakeup(info); |
| 540 | } |
| 541 | |
| 542 | if (reg & 0x02) { |
| 543 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); |
| 544 | outb(0x02, iobase + REG_INTERRUPT); |
| 545 | bluecard_write_wakeup(info); |
| 546 | } |
| 547 | |
| 548 | } |
| 549 | |
| 550 | /* Enable interrupt */ |
| 551 | info->ctrl_reg |= REG_CONTROL_INTERRUPT; |
| 552 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 553 | |
| 554 | spin_unlock(&(info->lock)); |
| 555 | |
| 556 | return IRQ_HANDLED; |
| 557 | } |
| 558 | |
| 559 | |
| 560 | |
| 561 | /* ======================== Device specific HCI commands ======================== */ |
| 562 | |
| 563 | |
| 564 | static int bluecard_hci_set_baud_rate(struct hci_dev *hdev, int baud) |
| 565 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 566 | struct bluecard_info *info = hci_get_drvdata(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | struct sk_buff *skb; |
| 568 | |
| 569 | /* Ericsson baud rate command */ |
| 570 | unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 }; |
| 571 | |
Valentin Ilie | a08b15e | 2013-08-12 18:46:00 +0300 | [diff] [blame] | 572 | skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); |
| 573 | if (!skb) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | BT_ERR("Can't allocate mem for new packet"); |
| 575 | return -1; |
| 576 | } |
| 577 | |
| 578 | switch (baud) { |
| 579 | case 460800: |
| 580 | cmd[4] = 0x00; |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 581 | bt_cb(skb)->pkt_type = PKT_BAUD_RATE_460800; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | break; |
| 583 | case 230400: |
| 584 | cmd[4] = 0x01; |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 585 | bt_cb(skb)->pkt_type = PKT_BAUD_RATE_230400; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | break; |
| 587 | case 115200: |
| 588 | cmd[4] = 0x02; |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 589 | bt_cb(skb)->pkt_type = PKT_BAUD_RATE_115200; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | break; |
| 591 | case 57600: |
| 592 | /* Fall through... */ |
| 593 | default: |
| 594 | cmd[4] = 0x03; |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 595 | bt_cb(skb)->pkt_type = PKT_BAUD_RATE_57600; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | break; |
| 597 | } |
| 598 | |
| 599 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); |
| 600 | |
| 601 | skb_queue_tail(&(info->txq), skb); |
| 602 | |
| 603 | bluecard_write_wakeup(info); |
| 604 | |
| 605 | return 0; |
| 606 | } |
| 607 | |
| 608 | |
| 609 | |
| 610 | /* ======================== HCI interface ======================== */ |
| 611 | |
| 612 | |
| 613 | static int bluecard_hci_flush(struct hci_dev *hdev) |
| 614 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 615 | struct bluecard_info *info = hci_get_drvdata(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | |
| 617 | /* Drop TX queue */ |
| 618 | skb_queue_purge(&(info->txq)); |
| 619 | |
| 620 | return 0; |
| 621 | } |
| 622 | |
| 623 | |
| 624 | static int bluecard_hci_open(struct hci_dev *hdev) |
| 625 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 626 | struct bluecard_info *info = hci_get_drvdata(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 627 | |
| 628 | if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) |
| 629 | bluecard_hci_set_baud_rate(hdev, DEFAULT_BAUD_RATE); |
| 630 | |
| 631 | if (test_and_set_bit(HCI_RUNNING, &(hdev->flags))) |
| 632 | return 0; |
| 633 | |
| 634 | if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) { |
Andrei Emeltchenko | 74ad8fd | 2012-06-29 14:58:07 +0300 | [diff] [blame] | 635 | unsigned int iobase = info->p_dev->resource[0]->start; |
| 636 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | /* Enable LED */ |
| 638 | outb(0x08 | 0x20, iobase + 0x30); |
| 639 | } |
| 640 | |
| 641 | return 0; |
| 642 | } |
| 643 | |
| 644 | |
| 645 | static int bluecard_hci_close(struct hci_dev *hdev) |
| 646 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 647 | struct bluecard_info *info = hci_get_drvdata(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | |
| 649 | if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags))) |
| 650 | return 0; |
| 651 | |
| 652 | bluecard_hci_flush(hdev); |
| 653 | |
| 654 | if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) { |
Andrei Emeltchenko | 74ad8fd | 2012-06-29 14:58:07 +0300 | [diff] [blame] | 655 | unsigned int iobase = info->p_dev->resource[0]->start; |
| 656 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | /* Disable LED */ |
| 658 | outb(0x00, iobase + 0x30); |
| 659 | } |
| 660 | |
| 661 | return 0; |
| 662 | } |
| 663 | |
| 664 | |
Marcel Holtmann | 7bd8f09 | 2013-10-11 06:19:18 -0700 | [diff] [blame] | 665 | static int bluecard_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 667 | struct bluecard_info *info = hci_get_drvdata(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 669 | switch (bt_cb(skb)->pkt_type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | case HCI_COMMAND_PKT: |
| 671 | hdev->stat.cmd_tx++; |
| 672 | break; |
| 673 | case HCI_ACLDATA_PKT: |
| 674 | hdev->stat.acl_tx++; |
| 675 | break; |
| 676 | case HCI_SCODATA_PKT: |
| 677 | hdev->stat.sco_tx++; |
| 678 | break; |
Peter Senna Tschudin | ce9b004 | 2012-09-07 17:24:40 +0200 | [diff] [blame] | 679 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | |
| 681 | /* Prepend skb with frame type */ |
Marcel Holtmann | 0d48d93 | 2005-08-09 20:30:28 -0700 | [diff] [blame] | 682 | memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | skb_queue_tail(&(info->txq), skb); |
| 684 | |
| 685 | bluecard_write_wakeup(info); |
| 686 | |
| 687 | return 0; |
| 688 | } |
| 689 | |
| 690 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | |
| 692 | /* ======================== Card services HCI interaction ======================== */ |
| 693 | |
| 694 | |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 695 | static int bluecard_open(struct bluecard_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | { |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 697 | unsigned int iobase = info->p_dev->resource[0]->start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | struct hci_dev *hdev; |
| 699 | unsigned char id; |
| 700 | |
| 701 | spin_lock_init(&(info->lock)); |
| 702 | |
| 703 | init_timer(&(info->timer)); |
| 704 | info->timer.function = &bluecard_activity_led_timeout; |
| 705 | info->timer.data = (u_long)info; |
| 706 | |
| 707 | skb_queue_head_init(&(info->txq)); |
| 708 | |
| 709 | info->rx_state = RECV_WAIT_PACKET_TYPE; |
| 710 | info->rx_count = 0; |
| 711 | info->rx_skb = NULL; |
| 712 | |
| 713 | /* Initialize HCI device */ |
| 714 | hdev = hci_alloc_dev(); |
| 715 | if (!hdev) { |
| 716 | BT_ERR("Can't allocate HCI device"); |
| 717 | return -ENOMEM; |
| 718 | } |
| 719 | |
| 720 | info->hdev = hdev; |
| 721 | |
Marcel Holtmann | c13854c | 2010-02-08 15:27:07 +0100 | [diff] [blame] | 722 | hdev->bus = HCI_PCCARD; |
David Herrmann | 155961e | 2012-02-09 21:58:32 +0100 | [diff] [blame] | 723 | hci_set_drvdata(hdev, info); |
Marcel Holtmann | 27d3528 | 2006-07-03 10:02:37 +0200 | [diff] [blame] | 724 | SET_HCIDEV_DEV(hdev, &info->p_dev->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 725 | |
Marcel Holtmann | 87d82ee | 2013-10-10 10:50:01 -0700 | [diff] [blame] | 726 | hdev->open = bluecard_hci_open; |
| 727 | hdev->close = bluecard_hci_close; |
| 728 | hdev->flush = bluecard_hci_flush; |
| 729 | hdev->send = bluecard_hci_send_frame; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 730 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 731 | id = inb(iobase + 0x30); |
| 732 | |
| 733 | if ((id & 0x0f) == 0x02) |
| 734 | set_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)); |
| 735 | |
| 736 | if (id & 0x10) |
| 737 | set_bit(CARD_HAS_POWER_LED, &(info->hw_state)); |
| 738 | |
| 739 | if (id & 0x20) |
| 740 | set_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state)); |
| 741 | |
| 742 | /* Reset card */ |
| 743 | info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; |
| 744 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 745 | |
| 746 | /* Turn FPGA off */ |
| 747 | outb(0x80, iobase + 0x30); |
| 748 | |
| 749 | /* Wait some time */ |
| 750 | msleep(10); |
| 751 | |
| 752 | /* Turn FPGA on */ |
| 753 | outb(0x00, iobase + 0x30); |
| 754 | |
| 755 | /* Activate card */ |
| 756 | info->ctrl_reg = REG_CONTROL_BT_ON | REG_CONTROL_BT_RES_PU; |
| 757 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 758 | |
| 759 | /* Enable interrupt */ |
| 760 | outb(0xff, iobase + REG_INTERRUPT); |
| 761 | info->ctrl_reg |= REG_CONTROL_INTERRUPT; |
| 762 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 763 | |
| 764 | if ((id & 0x0f) == 0x03) { |
| 765 | /* Disable RTS */ |
| 766 | info->ctrl_reg |= REG_CONTROL_RTS; |
| 767 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 768 | |
| 769 | /* Set baud rate */ |
| 770 | info->ctrl_reg |= 0x03; |
| 771 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 772 | |
| 773 | /* Enable RTS */ |
| 774 | info->ctrl_reg &= ~REG_CONTROL_RTS; |
| 775 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 776 | |
| 777 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); |
| 778 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); |
| 779 | set_bit(XMIT_SENDING_READY, &(info->tx_state)); |
| 780 | } |
| 781 | |
| 782 | /* Start the RX buffers */ |
| 783 | outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND); |
| 784 | outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND); |
| 785 | |
| 786 | /* Signal that the hardware is ready */ |
| 787 | set_bit(CARD_READY, &(info->hw_state)); |
| 788 | |
| 789 | /* Drop TX queue */ |
| 790 | skb_queue_purge(&(info->txq)); |
| 791 | |
| 792 | /* Control the point at which RTS is enabled */ |
| 793 | outb((0x0f << RTS_LEVEL_SHIFT_BITS) | 1, iobase + REG_RX_CONTROL); |
| 794 | |
| 795 | /* Timeout before it is safe to send the first HCI packet */ |
| 796 | msleep(1250); |
| 797 | |
| 798 | /* Register HCI device */ |
| 799 | if (hci_register_dev(hdev) < 0) { |
| 800 | BT_ERR("Can't register HCI device"); |
| 801 | info->hdev = NULL; |
| 802 | hci_free_dev(hdev); |
| 803 | return -ENODEV; |
| 804 | } |
| 805 | |
| 806 | return 0; |
| 807 | } |
| 808 | |
| 809 | |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 810 | static int bluecard_close(struct bluecard_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | { |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 812 | unsigned int iobase = info->p_dev->resource[0]->start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 813 | struct hci_dev *hdev = info->hdev; |
| 814 | |
| 815 | if (!hdev) |
| 816 | return -ENODEV; |
| 817 | |
| 818 | bluecard_hci_close(hdev); |
| 819 | |
| 820 | clear_bit(CARD_READY, &(info->hw_state)); |
| 821 | |
| 822 | /* Reset card */ |
| 823 | info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; |
| 824 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 825 | |
| 826 | /* Turn FPGA off */ |
| 827 | outb(0x80, iobase + 0x30); |
| 828 | |
David Herrmann | 13ea401 | 2011-10-26 10:43:18 +0200 | [diff] [blame] | 829 | hci_unregister_dev(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | hci_free_dev(hdev); |
| 831 | |
| 832 | return 0; |
| 833 | } |
| 834 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 835 | static int bluecard_probe(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 836 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 837 | struct bluecard_info *info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | |
| 839 | /* Create new info device */ |
Sachin Kamat | 1a31c60 | 2012-07-27 12:38:33 +0530 | [diff] [blame] | 840 | info = devm_kzalloc(&link->dev, sizeof(*info), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | if (!info) |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 842 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 844 | info->p_dev = link; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | link->priv = info; |
| 846 | |
Dominik Brodowski | 1ac71e5 | 2010-07-29 19:27:09 +0200 | [diff] [blame] | 847 | link->config_flags |= CONF_ENABLE_IRQ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 848 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 849 | return bluecard_config(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | } |
| 851 | |
| 852 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 853 | static void bluecard_detach(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 854 | { |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 855 | bluecard_release(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 856 | } |
| 857 | |
| 858 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 859 | static int bluecard_config(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 860 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 861 | struct bluecard_info *info = link->priv; |
Dominik Brodowski | af2b3b5 | 2006-10-25 21:49:27 -0400 | [diff] [blame] | 862 | int i, n; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | |
Dominik Brodowski | 7feabb6 | 2010-07-29 18:35:47 +0200 | [diff] [blame] | 864 | link->config_index = 0x20; |
Dominik Brodowski | 90abdc3 | 2010-07-24 17:23:51 +0200 | [diff] [blame] | 865 | |
| 866 | link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; |
| 867 | link->resource[0]->end = 64; |
| 868 | link->io_lines = 6; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 869 | |
| 870 | for (n = 0; n < 0x400; n += 0x40) { |
Dominik Brodowski | 90abdc3 | 2010-07-24 17:23:51 +0200 | [diff] [blame] | 871 | link->resource[0]->start = n ^ 0x300; |
| 872 | i = pcmcia_request_io(link); |
Dominik Brodowski | 4c89e88 | 2008-08-03 10:07:45 +0200 | [diff] [blame] | 873 | if (i == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 874 | break; |
| 875 | } |
| 876 | |
Dominik Brodowski | 9ac3e58 | 2009-10-24 15:45:06 +0200 | [diff] [blame] | 877 | if (i != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 878 | goto failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | |
Dominik Brodowski | eb14120 | 2010-03-07 12:21:16 +0100 | [diff] [blame] | 880 | i = pcmcia_request_irq(link, bluecard_interrupt); |
Dominik Brodowski | 9ac3e58 | 2009-10-24 15:45:06 +0200 | [diff] [blame] | 881 | if (i != 0) |
Dominik Brodowski | eb14120 | 2010-03-07 12:21:16 +0100 | [diff] [blame] | 882 | goto failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 883 | |
Dominik Brodowski | 1ac71e5 | 2010-07-29 19:27:09 +0200 | [diff] [blame] | 884 | i = pcmcia_enable_device(link); |
Dominik Brodowski | 9ac3e58 | 2009-10-24 15:45:06 +0200 | [diff] [blame] | 885 | if (i != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 886 | goto failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | |
| 888 | if (bluecard_open(info) != 0) |
| 889 | goto failed; |
| 890 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 891 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 892 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 893 | failed: |
| 894 | bluecard_release(link); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 895 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | } |
| 897 | |
| 898 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 899 | static void bluecard_release(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 900 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 901 | struct bluecard_info *info = link->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 902 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 903 | bluecard_close(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 904 | |
Thomas Gleixner | d8ff9cd | 2014-03-23 15:09:31 +0000 | [diff] [blame] | 905 | del_timer_sync(&(info->timer)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 906 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 907 | pcmcia_disable_device(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 908 | } |
| 909 | |
Joe Perches | 25f8f54 | 2011-05-03 19:29:01 -0700 | [diff] [blame] | 910 | static const struct pcmcia_device_id bluecard_ids[] = { |
Dominik Brodowski | 7f70cb6 | 2005-06-27 16:28:35 -0700 | [diff] [blame] | 911 | PCMCIA_DEVICE_PROD_ID12("BlueCard", "LSE041", 0xbaf16fbf, 0x657cc15e), |
| 912 | PCMCIA_DEVICE_PROD_ID12("BTCFCARD", "LSE139", 0xe3987764, 0x2524b59c), |
| 913 | PCMCIA_DEVICE_PROD_ID12("WSS", "LSE039", 0x0a0736ec, 0x24e6dfab), |
| 914 | PCMCIA_DEVICE_NULL |
| 915 | }; |
| 916 | MODULE_DEVICE_TABLE(pcmcia, bluecard_ids); |
| 917 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 918 | static struct pcmcia_driver bluecard_driver = { |
| 919 | .owner = THIS_MODULE, |
Dominik Brodowski | 2e9b981 | 2010-08-08 11:36:26 +0200 | [diff] [blame] | 920 | .name = "bluecard_cs", |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 921 | .probe = bluecard_probe, |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 922 | .remove = bluecard_detach, |
Dominik Brodowski | 7f70cb6 | 2005-06-27 16:28:35 -0700 | [diff] [blame] | 923 | .id_table = bluecard_ids, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 924 | }; |
H Hartley Sweeten | e0c005f | 2013-03-06 11:26:24 -0700 | [diff] [blame] | 925 | module_pcmcia_driver(bluecard_driver); |