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 |
Ondrej Zary | c7ab733 | 2017-08-07 19:35:49 +0200 | [diff] [blame] | 96 | #define CARD_ACTIVITY 2 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | #define CARD_HAS_PCCARD_ID 4 |
| 98 | #define CARD_HAS_POWER_LED 5 |
| 99 | #define CARD_HAS_ACTIVITY_LED 6 |
| 100 | |
| 101 | /* Transmit states */ |
| 102 | #define XMIT_SENDING 1 |
| 103 | #define XMIT_WAKEUP 2 |
| 104 | #define XMIT_BUFFER_NUMBER 5 /* unset = buffer one, set = buffer two */ |
| 105 | #define XMIT_BUF_ONE_READY 6 |
| 106 | #define XMIT_BUF_TWO_READY 7 |
| 107 | #define XMIT_SENDING_READY 8 |
| 108 | |
| 109 | /* Receiver states */ |
| 110 | #define RECV_WAIT_PACKET_TYPE 0 |
| 111 | #define RECV_WAIT_EVENT_HEADER 1 |
| 112 | #define RECV_WAIT_ACL_HEADER 2 |
| 113 | #define RECV_WAIT_SCO_HEADER 3 |
| 114 | #define RECV_WAIT_DATA 4 |
| 115 | |
| 116 | /* Special packet types */ |
| 117 | #define PKT_BAUD_RATE_57600 0x80 |
| 118 | #define PKT_BAUD_RATE_115200 0x81 |
| 119 | #define PKT_BAUD_RATE_230400 0x82 |
| 120 | #define PKT_BAUD_RATE_460800 0x83 |
| 121 | |
| 122 | |
| 123 | /* These are the register offsets */ |
| 124 | #define REG_COMMAND 0x20 |
| 125 | #define REG_INTERRUPT 0x21 |
| 126 | #define REG_CONTROL 0x22 |
| 127 | #define REG_RX_CONTROL 0x24 |
| 128 | #define REG_CARD_RESET 0x30 |
| 129 | #define REG_LED_CTRL 0x30 |
| 130 | |
| 131 | /* REG_COMMAND */ |
| 132 | #define REG_COMMAND_TX_BUF_ONE 0x01 |
| 133 | #define REG_COMMAND_TX_BUF_TWO 0x02 |
| 134 | #define REG_COMMAND_RX_BUF_ONE 0x04 |
| 135 | #define REG_COMMAND_RX_BUF_TWO 0x08 |
| 136 | #define REG_COMMAND_RX_WIN_ONE 0x00 |
| 137 | #define REG_COMMAND_RX_WIN_TWO 0x10 |
| 138 | |
| 139 | /* REG_CONTROL */ |
| 140 | #define REG_CONTROL_BAUD_RATE_57600 0x00 |
| 141 | #define REG_CONTROL_BAUD_RATE_115200 0x01 |
| 142 | #define REG_CONTROL_BAUD_RATE_230400 0x02 |
| 143 | #define REG_CONTROL_BAUD_RATE_460800 0x03 |
| 144 | #define REG_CONTROL_RTS 0x04 |
| 145 | #define REG_CONTROL_BT_ON 0x08 |
| 146 | #define REG_CONTROL_BT_RESET 0x10 |
| 147 | #define REG_CONTROL_BT_RES_PU 0x20 |
| 148 | #define REG_CONTROL_INTERRUPT 0x40 |
| 149 | #define REG_CONTROL_CARD_RESET 0x80 |
| 150 | |
| 151 | /* REG_RX_CONTROL */ |
| 152 | #define RTS_LEVEL_SHIFT_BITS 0x02 |
| 153 | |
| 154 | |
| 155 | |
| 156 | /* ======================== LED handling routines ======================== */ |
| 157 | |
| 158 | |
Kees Cook | 04356052 | 2017-10-04 17:54:29 -0700 | [diff] [blame] | 159 | static void bluecard_activity_led_timeout(struct timer_list *t) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | { |
Kees Cook | 04356052 | 2017-10-04 17:54:29 -0700 | [diff] [blame] | 161 | struct bluecard_info *info = from_timer(info, t, timer); |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 162 | unsigned int iobase = info->p_dev->resource[0]->start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | |
Ondrej Zary | c7ab733 | 2017-08-07 19:35:49 +0200 | [diff] [blame] | 164 | if (test_bit(CARD_ACTIVITY, &(info->hw_state))) { |
| 165 | /* leave LED in inactive state for HZ/10 for blink effect */ |
| 166 | clear_bit(CARD_ACTIVITY, &(info->hw_state)); |
| 167 | mod_timer(&(info->timer), jiffies + HZ / 10); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | } |
Ondrej Zary | c7ab733 | 2017-08-07 19:35:49 +0200 | [diff] [blame] | 169 | |
| 170 | /* Disable activity LED, enable power LED */ |
| 171 | outb(0x08 | 0x20, iobase + 0x30); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | } |
| 173 | |
| 174 | |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 175 | static void bluecard_enable_activity_led(struct bluecard_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | { |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 177 | unsigned int iobase = info->p_dev->resource[0]->start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | |
Ondrej Zary | c7ab733 | 2017-08-07 19:35:49 +0200 | [diff] [blame] | 179 | /* don't disturb running blink timer */ |
| 180 | if (timer_pending(&(info->timer))) |
| 181 | return; |
| 182 | |
| 183 | set_bit(CARD_ACTIVITY, &(info->hw_state)); |
| 184 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) { |
Ondrej Zary | 859d235 | 2017-08-05 21:34:45 +0200 | [diff] [blame] | 186 | /* Enable activity LED, keep power LED enabled */ |
| 187 | outb(0x18 | 0x60, iobase + 0x30); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | } else { |
Ondrej Zary | c7ab733 | 2017-08-07 19:35:49 +0200 | [diff] [blame] | 189 | /* Disable power LED */ |
| 190 | outb(0x00, iobase + 0x30); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | } |
Ondrej Zary | c7ab733 | 2017-08-07 19:35:49 +0200 | [diff] [blame] | 192 | |
| 193 | /* Stop the LED after HZ/10 */ |
| 194 | mod_timer(&(info->timer), jiffies + HZ / 10); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | } |
| 196 | |
| 197 | |
| 198 | |
| 199 | /* ======================== Interrupt handling ======================== */ |
| 200 | |
| 201 | |
| 202 | static int bluecard_write(unsigned int iobase, unsigned int offset, __u8 *buf, int len) |
| 203 | { |
| 204 | int i, actual; |
| 205 | |
| 206 | actual = (len > 15) ? 15 : len; |
| 207 | |
| 208 | outb_p(actual, iobase + offset); |
| 209 | |
| 210 | for (i = 0; i < actual; i++) |
| 211 | outb_p(buf[i], iobase + offset + i + 1); |
| 212 | |
| 213 | return actual; |
| 214 | } |
| 215 | |
| 216 | |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 217 | static void bluecard_write_wakeup(struct bluecard_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | { |
| 219 | if (!info) { |
| 220 | BT_ERR("Unknown device"); |
| 221 | return; |
| 222 | } |
| 223 | |
| 224 | if (!test_bit(XMIT_SENDING_READY, &(info->tx_state))) |
| 225 | return; |
| 226 | |
| 227 | if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) { |
| 228 | set_bit(XMIT_WAKEUP, &(info->tx_state)); |
| 229 | return; |
| 230 | } |
| 231 | |
| 232 | do { |
Gustavo Padovan | fc5fef6 | 2012-05-23 04:04:19 -0300 | [diff] [blame] | 233 | unsigned int iobase = info->p_dev->resource[0]->start; |
| 234 | unsigned int offset; |
| 235 | unsigned char command; |
| 236 | unsigned long ready_bit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | register struct sk_buff *skb; |
Gustavo Padovan | fc5fef6 | 2012-05-23 04:04:19 -0300 | [diff] [blame] | 238 | int len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | |
| 240 | clear_bit(XMIT_WAKEUP, &(info->tx_state)); |
| 241 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 242 | if (!pcmcia_dev_present(info->p_dev)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | return; |
| 244 | |
| 245 | if (test_bit(XMIT_BUFFER_NUMBER, &(info->tx_state))) { |
| 246 | if (!test_bit(XMIT_BUF_TWO_READY, &(info->tx_state))) |
| 247 | break; |
| 248 | offset = 0x10; |
| 249 | command = REG_COMMAND_TX_BUF_TWO; |
| 250 | ready_bit = XMIT_BUF_TWO_READY; |
| 251 | } else { |
| 252 | if (!test_bit(XMIT_BUF_ONE_READY, &(info->tx_state))) |
| 253 | break; |
| 254 | offset = 0x00; |
| 255 | command = REG_COMMAND_TX_BUF_ONE; |
| 256 | ready_bit = XMIT_BUF_ONE_READY; |
| 257 | } |
| 258 | |
Valentin Ilie | a08b15e | 2013-08-12 18:46:00 +0300 | [diff] [blame] | 259 | skb = skb_dequeue(&(info->txq)); |
| 260 | if (!skb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | break; |
| 262 | |
Marcel Holtmann | 618e8bc | 2015-11-05 07:33:56 +0100 | [diff] [blame] | 263 | if (hci_skb_pkt_type(skb) & 0x80) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | /* Disable RTS */ |
| 265 | info->ctrl_reg |= REG_CONTROL_RTS; |
| 266 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 267 | } |
| 268 | |
| 269 | /* Activate LED */ |
| 270 | bluecard_enable_activity_led(info); |
| 271 | |
| 272 | /* Send frame */ |
| 273 | len = bluecard_write(iobase, offset, skb->data, skb->len); |
| 274 | |
| 275 | /* Tell the FPGA to send the data */ |
| 276 | outb_p(command, iobase + REG_COMMAND); |
| 277 | |
| 278 | /* Mark the buffer as dirty */ |
| 279 | clear_bit(ready_bit, &(info->tx_state)); |
| 280 | |
Marcel Holtmann | 618e8bc | 2015-11-05 07:33:56 +0100 | [diff] [blame] | 281 | if (hci_skb_pkt_type(skb) & 0x80) { |
Peter Zijlstra | 7259f0d | 2006-10-29 22:46:36 -0800 | [diff] [blame] | 282 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | DEFINE_WAIT(wait); |
| 284 | |
| 285 | unsigned char baud_reg; |
| 286 | |
Marcel Holtmann | 618e8bc | 2015-11-05 07:33:56 +0100 | [diff] [blame] | 287 | switch (hci_skb_pkt_type(skb)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | case PKT_BAUD_RATE_460800: |
| 289 | baud_reg = REG_CONTROL_BAUD_RATE_460800; |
| 290 | break; |
| 291 | case PKT_BAUD_RATE_230400: |
| 292 | baud_reg = REG_CONTROL_BAUD_RATE_230400; |
| 293 | break; |
| 294 | case PKT_BAUD_RATE_115200: |
| 295 | baud_reg = REG_CONTROL_BAUD_RATE_115200; |
| 296 | break; |
| 297 | case PKT_BAUD_RATE_57600: |
| 298 | /* Fall through... */ |
| 299 | default: |
| 300 | baud_reg = REG_CONTROL_BAUD_RATE_57600; |
| 301 | break; |
| 302 | } |
| 303 | |
| 304 | /* Wait until the command reaches the baseband */ |
Jia-Ju Bai | 479f335 | 2017-12-13 17:28:04 +0800 | [diff] [blame] | 305 | mdelay(100); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | |
| 307 | /* Set baud on baseband */ |
| 308 | info->ctrl_reg &= ~0x03; |
| 309 | info->ctrl_reg |= baud_reg; |
| 310 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 311 | |
| 312 | /* Enable RTS */ |
| 313 | info->ctrl_reg &= ~REG_CONTROL_RTS; |
| 314 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 315 | |
| 316 | /* Wait before the next HCI packet can be send */ |
Jia-Ju Bai | 479f335 | 2017-12-13 17:28:04 +0800 | [diff] [blame] | 317 | mdelay(1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | } |
| 319 | |
| 320 | if (len == skb->len) { |
| 321 | kfree_skb(skb); |
| 322 | } else { |
| 323 | skb_pull(skb, len); |
| 324 | skb_queue_head(&(info->txq), skb); |
| 325 | } |
| 326 | |
| 327 | info->hdev->stat.byte_tx += len; |
| 328 | |
| 329 | /* Change buffer */ |
| 330 | change_bit(XMIT_BUFFER_NUMBER, &(info->tx_state)); |
| 331 | |
| 332 | } while (test_bit(XMIT_WAKEUP, &(info->tx_state))); |
| 333 | |
| 334 | clear_bit(XMIT_SENDING, &(info->tx_state)); |
| 335 | } |
| 336 | |
| 337 | |
| 338 | static int bluecard_read(unsigned int iobase, unsigned int offset, __u8 *buf, int size) |
| 339 | { |
| 340 | int i, n, len; |
| 341 | |
| 342 | outb(REG_COMMAND_RX_WIN_ONE, iobase + REG_COMMAND); |
| 343 | |
| 344 | len = inb(iobase + offset); |
| 345 | n = 0; |
| 346 | i = 1; |
| 347 | |
| 348 | while (n < len) { |
| 349 | |
| 350 | if (i == 16) { |
| 351 | outb(REG_COMMAND_RX_WIN_TWO, iobase + REG_COMMAND); |
| 352 | i = 0; |
| 353 | } |
| 354 | |
| 355 | buf[n] = inb(iobase + offset + i); |
| 356 | |
| 357 | n++; |
| 358 | i++; |
| 359 | |
| 360 | } |
| 361 | |
| 362 | return len; |
| 363 | } |
| 364 | |
| 365 | |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 366 | static void bluecard_receive(struct bluecard_info *info, |
| 367 | unsigned int offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | { |
| 369 | unsigned int iobase; |
| 370 | unsigned char buf[31]; |
| 371 | int i, len; |
| 372 | |
| 373 | if (!info) { |
| 374 | BT_ERR("Unknown device"); |
| 375 | return; |
| 376 | } |
| 377 | |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 378 | iobase = info->p_dev->resource[0]->start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | |
| 380 | if (test_bit(XMIT_SENDING_READY, &(info->tx_state))) |
| 381 | bluecard_enable_activity_led(info); |
| 382 | |
| 383 | len = bluecard_read(iobase, offset, buf, sizeof(buf)); |
| 384 | |
| 385 | for (i = 0; i < len; i++) { |
| 386 | |
| 387 | /* Allocate packet */ |
Prasanna Karthik | 54b5b34 | 2015-09-25 07:59:18 +0000 | [diff] [blame] | 388 | if (!info->rx_skb) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | info->rx_state = RECV_WAIT_PACKET_TYPE; |
| 390 | info->rx_count = 0; |
Valentin Ilie | a08b15e | 2013-08-12 18:46:00 +0300 | [diff] [blame] | 391 | info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); |
| 392 | if (!info->rx_skb) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | BT_ERR("Can't allocate mem for new packet"); |
| 394 | return; |
| 395 | } |
| 396 | } |
| 397 | |
| 398 | if (info->rx_state == RECV_WAIT_PACKET_TYPE) { |
| 399 | |
Marcel Holtmann | 618e8bc | 2015-11-05 07:33:56 +0100 | [diff] [blame] | 400 | hci_skb_pkt_type(info->rx_skb) = buf[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | |
Marcel Holtmann | 618e8bc | 2015-11-05 07:33:56 +0100 | [diff] [blame] | 402 | switch (hci_skb_pkt_type(info->rx_skb)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | |
| 404 | case 0x00: |
| 405 | /* init packet */ |
| 406 | if (offset != 0x00) { |
| 407 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); |
| 408 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); |
| 409 | set_bit(XMIT_SENDING_READY, &(info->tx_state)); |
| 410 | bluecard_write_wakeup(info); |
| 411 | } |
| 412 | |
| 413 | kfree_skb(info->rx_skb); |
| 414 | info->rx_skb = NULL; |
| 415 | break; |
| 416 | |
| 417 | case HCI_EVENT_PKT: |
| 418 | info->rx_state = RECV_WAIT_EVENT_HEADER; |
| 419 | info->rx_count = HCI_EVENT_HDR_SIZE; |
| 420 | break; |
| 421 | |
| 422 | case HCI_ACLDATA_PKT: |
| 423 | info->rx_state = RECV_WAIT_ACL_HEADER; |
| 424 | info->rx_count = HCI_ACL_HDR_SIZE; |
| 425 | break; |
| 426 | |
| 427 | case HCI_SCODATA_PKT: |
| 428 | info->rx_state = RECV_WAIT_SCO_HEADER; |
| 429 | info->rx_count = HCI_SCO_HDR_SIZE; |
| 430 | break; |
| 431 | |
| 432 | default: |
| 433 | /* unknown packet */ |
Marcel Holtmann | 618e8bc | 2015-11-05 07:33:56 +0100 | [diff] [blame] | 434 | BT_ERR("Unknown HCI packet with type 0x%02x received", |
| 435 | hci_skb_pkt_type(info->rx_skb)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | info->hdev->stat.err_rx++; |
| 437 | |
| 438 | kfree_skb(info->rx_skb); |
| 439 | info->rx_skb = NULL; |
| 440 | break; |
| 441 | |
| 442 | } |
| 443 | |
| 444 | } else { |
| 445 | |
Johannes Berg | 634fef6 | 2017-06-16 14:29:24 +0200 | [diff] [blame] | 446 | skb_put_u8(info->rx_skb, buf[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | info->rx_count--; |
| 448 | |
| 449 | if (info->rx_count == 0) { |
| 450 | |
| 451 | int dlen; |
| 452 | struct hci_event_hdr *eh; |
| 453 | struct hci_acl_hdr *ah; |
| 454 | struct hci_sco_hdr *sh; |
| 455 | |
| 456 | switch (info->rx_state) { |
| 457 | |
| 458 | case RECV_WAIT_EVENT_HEADER: |
Arnaldo Carvalho de Melo | 2a123b86 | 2007-03-27 18:38:07 -0300 | [diff] [blame] | 459 | eh = hci_event_hdr(info->rx_skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | info->rx_state = RECV_WAIT_DATA; |
| 461 | info->rx_count = eh->plen; |
| 462 | break; |
| 463 | |
| 464 | case RECV_WAIT_ACL_HEADER: |
Arnaldo Carvalho de Melo | 2a123b86 | 2007-03-27 18:38:07 -0300 | [diff] [blame] | 465 | ah = hci_acl_hdr(info->rx_skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 466 | dlen = __le16_to_cpu(ah->dlen); |
| 467 | info->rx_state = RECV_WAIT_DATA; |
| 468 | info->rx_count = dlen; |
| 469 | break; |
| 470 | |
| 471 | case RECV_WAIT_SCO_HEADER: |
Arnaldo Carvalho de Melo | 2a123b86 | 2007-03-27 18:38:07 -0300 | [diff] [blame] | 472 | sh = hci_sco_hdr(info->rx_skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | info->rx_state = RECV_WAIT_DATA; |
| 474 | info->rx_count = sh->dlen; |
| 475 | break; |
| 476 | |
| 477 | case RECV_WAIT_DATA: |
Marcel Holtmann | e1a2617 | 2013-10-10 16:52:43 -0700 | [diff] [blame] | 478 | hci_recv_frame(info->hdev, info->rx_skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 479 | info->rx_skb = NULL; |
| 480 | break; |
| 481 | |
| 482 | } |
| 483 | |
| 484 | } |
| 485 | |
| 486 | } |
| 487 | |
| 488 | |
| 489 | } |
| 490 | |
| 491 | info->hdev->stat.byte_rx += len; |
| 492 | } |
| 493 | |
| 494 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 495 | static irqreturn_t bluecard_interrupt(int irq, void *dev_inst) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 497 | struct bluecard_info *info = dev_inst; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | unsigned int iobase; |
| 499 | unsigned char reg; |
| 500 | |
Mike Frysinger | 7427847 | 2009-09-14 13:43:49 -0400 | [diff] [blame] | 501 | if (!info || !info->hdev) |
| 502 | /* our irq handler is shared */ |
| 503 | return IRQ_NONE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | |
| 505 | if (!test_bit(CARD_READY, &(info->hw_state))) |
| 506 | return IRQ_HANDLED; |
| 507 | |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 508 | iobase = info->p_dev->resource[0]->start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | |
| 510 | spin_lock(&(info->lock)); |
| 511 | |
| 512 | /* Disable interrupt */ |
| 513 | info->ctrl_reg &= ~REG_CONTROL_INTERRUPT; |
| 514 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 515 | |
| 516 | reg = inb(iobase + REG_INTERRUPT); |
| 517 | |
| 518 | if ((reg != 0x00) && (reg != 0xff)) { |
| 519 | |
| 520 | if (reg & 0x04) { |
| 521 | bluecard_receive(info, 0x00); |
| 522 | outb(0x04, iobase + REG_INTERRUPT); |
| 523 | outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND); |
| 524 | } |
| 525 | |
| 526 | if (reg & 0x08) { |
| 527 | bluecard_receive(info, 0x10); |
| 528 | outb(0x08, iobase + REG_INTERRUPT); |
| 529 | outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND); |
| 530 | } |
| 531 | |
| 532 | if (reg & 0x01) { |
| 533 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); |
| 534 | outb(0x01, iobase + REG_INTERRUPT); |
| 535 | bluecard_write_wakeup(info); |
| 536 | } |
| 537 | |
| 538 | if (reg & 0x02) { |
| 539 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); |
| 540 | outb(0x02, iobase + REG_INTERRUPT); |
| 541 | bluecard_write_wakeup(info); |
| 542 | } |
| 543 | |
| 544 | } |
| 545 | |
| 546 | /* Enable interrupt */ |
| 547 | info->ctrl_reg |= REG_CONTROL_INTERRUPT; |
| 548 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 549 | |
| 550 | spin_unlock(&(info->lock)); |
| 551 | |
| 552 | return IRQ_HANDLED; |
| 553 | } |
| 554 | |
| 555 | |
| 556 | |
| 557 | /* ======================== Device specific HCI commands ======================== */ |
| 558 | |
| 559 | |
| 560 | static int bluecard_hci_set_baud_rate(struct hci_dev *hdev, int baud) |
| 561 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 562 | struct bluecard_info *info = hci_get_drvdata(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | struct sk_buff *skb; |
| 564 | |
| 565 | /* Ericsson baud rate command */ |
| 566 | unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 }; |
| 567 | |
Jia-Ju Bai | 5f9c658 | 2018-07-23 11:17:35 +0800 | [diff] [blame] | 568 | skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_KERNEL); |
Valentin Ilie | a08b15e | 2013-08-12 18:46:00 +0300 | [diff] [blame] | 569 | if (!skb) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | BT_ERR("Can't allocate mem for new packet"); |
| 571 | return -1; |
| 572 | } |
| 573 | |
| 574 | switch (baud) { |
| 575 | case 460800: |
| 576 | cmd[4] = 0x00; |
Marcel Holtmann | 618e8bc | 2015-11-05 07:33:56 +0100 | [diff] [blame] | 577 | hci_skb_pkt_type(skb) = PKT_BAUD_RATE_460800; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | break; |
| 579 | case 230400: |
| 580 | cmd[4] = 0x01; |
Marcel Holtmann | 618e8bc | 2015-11-05 07:33:56 +0100 | [diff] [blame] | 581 | hci_skb_pkt_type(skb) = PKT_BAUD_RATE_230400; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | break; |
| 583 | case 115200: |
| 584 | cmd[4] = 0x02; |
Marcel Holtmann | 618e8bc | 2015-11-05 07:33:56 +0100 | [diff] [blame] | 585 | hci_skb_pkt_type(skb) = PKT_BAUD_RATE_115200; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | break; |
| 587 | case 57600: |
| 588 | /* Fall through... */ |
| 589 | default: |
| 590 | cmd[4] = 0x03; |
Marcel Holtmann | 618e8bc | 2015-11-05 07:33:56 +0100 | [diff] [blame] | 591 | hci_skb_pkt_type(skb) = PKT_BAUD_RATE_57600; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | break; |
| 593 | } |
| 594 | |
Johannes Berg | 59ae1d1 | 2017-06-16 14:29:20 +0200 | [diff] [blame] | 595 | skb_put_data(skb, cmd, sizeof(cmd)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | |
| 597 | skb_queue_tail(&(info->txq), skb); |
| 598 | |
| 599 | bluecard_write_wakeup(info); |
| 600 | |
| 601 | return 0; |
| 602 | } |
| 603 | |
| 604 | |
| 605 | |
| 606 | /* ======================== HCI interface ======================== */ |
| 607 | |
| 608 | |
| 609 | static int bluecard_hci_flush(struct hci_dev *hdev) |
| 610 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 611 | struct bluecard_info *info = hci_get_drvdata(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | |
| 613 | /* Drop TX queue */ |
| 614 | skb_queue_purge(&(info->txq)); |
| 615 | |
| 616 | return 0; |
| 617 | } |
| 618 | |
| 619 | |
| 620 | static int bluecard_hci_open(struct hci_dev *hdev) |
| 621 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 622 | struct bluecard_info *info = hci_get_drvdata(hdev); |
Ondrej Zary | df44f53 | 2017-08-05 21:34:44 +0200 | [diff] [blame] | 623 | unsigned int iobase = info->p_dev->resource[0]->start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | |
| 625 | if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) |
| 626 | bluecard_hci_set_baud_rate(hdev, DEFAULT_BAUD_RATE); |
| 627 | |
Ondrej Zary | 859d235 | 2017-08-05 21:34:45 +0200 | [diff] [blame] | 628 | /* Enable power LED */ |
Ondrej Zary | df44f53 | 2017-08-05 21:34:44 +0200 | [diff] [blame] | 629 | outb(0x08 | 0x20, iobase + 0x30); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | |
| 631 | return 0; |
| 632 | } |
| 633 | |
| 634 | |
| 635 | static int bluecard_hci_close(struct hci_dev *hdev) |
| 636 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 637 | struct bluecard_info *info = hci_get_drvdata(hdev); |
Ondrej Zary | df44f53 | 2017-08-05 21:34:44 +0200 | [diff] [blame] | 638 | unsigned int iobase = info->p_dev->resource[0]->start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 639 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | bluecard_hci_flush(hdev); |
| 641 | |
Ondrej Zary | 859d235 | 2017-08-05 21:34:45 +0200 | [diff] [blame] | 642 | /* Stop LED timer */ |
| 643 | del_timer_sync(&(info->timer)); |
| 644 | |
| 645 | /* Disable power LED */ |
Ondrej Zary | df44f53 | 2017-08-05 21:34:44 +0200 | [diff] [blame] | 646 | outb(0x00, iobase + 0x30); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | |
| 648 | return 0; |
| 649 | } |
| 650 | |
| 651 | |
Marcel Holtmann | 7bd8f09 | 2013-10-11 06:19:18 -0700 | [diff] [blame] | 652 | 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] | 653 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 654 | struct bluecard_info *info = hci_get_drvdata(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | |
Marcel Holtmann | 618e8bc | 2015-11-05 07:33:56 +0100 | [diff] [blame] | 656 | switch (hci_skb_pkt_type(skb)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | case HCI_COMMAND_PKT: |
| 658 | hdev->stat.cmd_tx++; |
| 659 | break; |
| 660 | case HCI_ACLDATA_PKT: |
| 661 | hdev->stat.acl_tx++; |
| 662 | break; |
| 663 | case HCI_SCODATA_PKT: |
| 664 | hdev->stat.sco_tx++; |
| 665 | break; |
Peter Senna Tschudin | ce9b004 | 2012-09-07 17:24:40 +0200 | [diff] [blame] | 666 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 667 | |
| 668 | /* Prepend skb with frame type */ |
Marcel Holtmann | 618e8bc | 2015-11-05 07:33:56 +0100 | [diff] [blame] | 669 | memcpy(skb_push(skb, 1), &hci_skb_pkt_type(skb), 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 670 | skb_queue_tail(&(info->txq), skb); |
| 671 | |
| 672 | bluecard_write_wakeup(info); |
| 673 | |
| 674 | return 0; |
| 675 | } |
| 676 | |
| 677 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | |
| 679 | /* ======================== Card services HCI interaction ======================== */ |
| 680 | |
| 681 | |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 682 | static int bluecard_open(struct bluecard_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | { |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 684 | unsigned int iobase = info->p_dev->resource[0]->start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | struct hci_dev *hdev; |
| 686 | unsigned char id; |
| 687 | |
| 688 | spin_lock_init(&(info->lock)); |
| 689 | |
Kees Cook | 04356052 | 2017-10-04 17:54:29 -0700 | [diff] [blame] | 690 | timer_setup(&info->timer, bluecard_activity_led_timeout, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 691 | |
| 692 | skb_queue_head_init(&(info->txq)); |
| 693 | |
| 694 | info->rx_state = RECV_WAIT_PACKET_TYPE; |
| 695 | info->rx_count = 0; |
| 696 | info->rx_skb = NULL; |
| 697 | |
| 698 | /* Initialize HCI device */ |
| 699 | hdev = hci_alloc_dev(); |
| 700 | if (!hdev) { |
| 701 | BT_ERR("Can't allocate HCI device"); |
| 702 | return -ENOMEM; |
| 703 | } |
| 704 | |
| 705 | info->hdev = hdev; |
| 706 | |
Marcel Holtmann | c13854c | 2010-02-08 15:27:07 +0100 | [diff] [blame] | 707 | hdev->bus = HCI_PCCARD; |
David Herrmann | 155961e | 2012-02-09 21:58:32 +0100 | [diff] [blame] | 708 | hci_set_drvdata(hdev, info); |
Marcel Holtmann | 27d3528 | 2006-07-03 10:02:37 +0200 | [diff] [blame] | 709 | SET_HCIDEV_DEV(hdev, &info->p_dev->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 710 | |
Marcel Holtmann | 87d82ee | 2013-10-10 10:50:01 -0700 | [diff] [blame] | 711 | hdev->open = bluecard_hci_open; |
| 712 | hdev->close = bluecard_hci_close; |
| 713 | hdev->flush = bluecard_hci_flush; |
| 714 | hdev->send = bluecard_hci_send_frame; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | id = inb(iobase + 0x30); |
| 717 | |
| 718 | if ((id & 0x0f) == 0x02) |
| 719 | set_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)); |
| 720 | |
| 721 | if (id & 0x10) |
| 722 | set_bit(CARD_HAS_POWER_LED, &(info->hw_state)); |
| 723 | |
| 724 | if (id & 0x20) |
| 725 | set_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state)); |
| 726 | |
| 727 | /* Reset card */ |
| 728 | info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; |
| 729 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 730 | |
| 731 | /* Turn FPGA off */ |
| 732 | outb(0x80, iobase + 0x30); |
| 733 | |
| 734 | /* Wait some time */ |
| 735 | msleep(10); |
| 736 | |
| 737 | /* Turn FPGA on */ |
| 738 | outb(0x00, iobase + 0x30); |
| 739 | |
| 740 | /* Activate card */ |
| 741 | info->ctrl_reg = REG_CONTROL_BT_ON | REG_CONTROL_BT_RES_PU; |
| 742 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 743 | |
| 744 | /* Enable interrupt */ |
| 745 | outb(0xff, iobase + REG_INTERRUPT); |
| 746 | info->ctrl_reg |= REG_CONTROL_INTERRUPT; |
| 747 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 748 | |
| 749 | if ((id & 0x0f) == 0x03) { |
| 750 | /* Disable RTS */ |
| 751 | info->ctrl_reg |= REG_CONTROL_RTS; |
| 752 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 753 | |
| 754 | /* Set baud rate */ |
| 755 | info->ctrl_reg |= 0x03; |
| 756 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 757 | |
| 758 | /* Enable RTS */ |
| 759 | info->ctrl_reg &= ~REG_CONTROL_RTS; |
| 760 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 761 | |
| 762 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); |
| 763 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); |
| 764 | set_bit(XMIT_SENDING_READY, &(info->tx_state)); |
| 765 | } |
| 766 | |
| 767 | /* Start the RX buffers */ |
| 768 | outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND); |
| 769 | outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND); |
| 770 | |
| 771 | /* Signal that the hardware is ready */ |
| 772 | set_bit(CARD_READY, &(info->hw_state)); |
| 773 | |
| 774 | /* Drop TX queue */ |
| 775 | skb_queue_purge(&(info->txq)); |
| 776 | |
| 777 | /* Control the point at which RTS is enabled */ |
| 778 | outb((0x0f << RTS_LEVEL_SHIFT_BITS) | 1, iobase + REG_RX_CONTROL); |
| 779 | |
| 780 | /* Timeout before it is safe to send the first HCI packet */ |
| 781 | msleep(1250); |
| 782 | |
| 783 | /* Register HCI device */ |
| 784 | if (hci_register_dev(hdev) < 0) { |
| 785 | BT_ERR("Can't register HCI device"); |
| 786 | info->hdev = NULL; |
| 787 | hci_free_dev(hdev); |
| 788 | return -ENODEV; |
| 789 | } |
| 790 | |
| 791 | return 0; |
| 792 | } |
| 793 | |
| 794 | |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 795 | static int bluecard_close(struct bluecard_info *info) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 796 | { |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 797 | unsigned int iobase = info->p_dev->resource[0]->start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 798 | struct hci_dev *hdev = info->hdev; |
| 799 | |
| 800 | if (!hdev) |
| 801 | return -ENODEV; |
| 802 | |
| 803 | bluecard_hci_close(hdev); |
| 804 | |
| 805 | clear_bit(CARD_READY, &(info->hw_state)); |
| 806 | |
| 807 | /* Reset card */ |
| 808 | info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; |
| 809 | outb(info->ctrl_reg, iobase + REG_CONTROL); |
| 810 | |
| 811 | /* Turn FPGA off */ |
| 812 | outb(0x80, iobase + 0x30); |
| 813 | |
David Herrmann | 13ea401 | 2011-10-26 10:43:18 +0200 | [diff] [blame] | 814 | hci_unregister_dev(hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | hci_free_dev(hdev); |
| 816 | |
| 817 | return 0; |
| 818 | } |
| 819 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 820 | static int bluecard_probe(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 822 | struct bluecard_info *info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | |
| 824 | /* Create new info device */ |
Sachin Kamat | 1a31c60 | 2012-07-27 12:38:33 +0530 | [diff] [blame] | 825 | info = devm_kzalloc(&link->dev, sizeof(*info), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 826 | if (!info) |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 827 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 829 | info->p_dev = link; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | link->priv = info; |
| 831 | |
Dominik Brodowski | 1ac71e5 | 2010-07-29 19:27:09 +0200 | [diff] [blame] | 832 | link->config_flags |= CONF_ENABLE_IRQ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 833 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 834 | return bluecard_config(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 835 | } |
| 836 | |
| 837 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 838 | static void bluecard_detach(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 839 | { |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 840 | bluecard_release(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | } |
| 842 | |
| 843 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 844 | static int bluecard_config(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 846 | struct bluecard_info *info = link->priv; |
Dominik Brodowski | af2b3b5 | 2006-10-25 21:49:27 -0400 | [diff] [blame] | 847 | int i, n; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 848 | |
Dominik Brodowski | 7feabb6 | 2010-07-29 18:35:47 +0200 | [diff] [blame] | 849 | link->config_index = 0x20; |
Dominik Brodowski | 90abdc3 | 2010-07-24 17:23:51 +0200 | [diff] [blame] | 850 | |
| 851 | link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; |
| 852 | link->resource[0]->end = 64; |
| 853 | link->io_lines = 6; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 854 | |
| 855 | for (n = 0; n < 0x400; n += 0x40) { |
Dominik Brodowski | 90abdc3 | 2010-07-24 17:23:51 +0200 | [diff] [blame] | 856 | link->resource[0]->start = n ^ 0x300; |
| 857 | i = pcmcia_request_io(link); |
Dominik Brodowski | 4c89e88 | 2008-08-03 10:07:45 +0200 | [diff] [blame] | 858 | if (i == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 859 | break; |
| 860 | } |
| 861 | |
Dominik Brodowski | 9ac3e58 | 2009-10-24 15:45:06 +0200 | [diff] [blame] | 862 | if (i != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | goto failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | |
Dominik Brodowski | eb14120 | 2010-03-07 12:21:16 +0100 | [diff] [blame] | 865 | i = pcmcia_request_irq(link, bluecard_interrupt); |
Dominik Brodowski | 9ac3e58 | 2009-10-24 15:45:06 +0200 | [diff] [blame] | 866 | if (i != 0) |
Dominik Brodowski | eb14120 | 2010-03-07 12:21:16 +0100 | [diff] [blame] | 867 | goto failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 868 | |
Dominik Brodowski | 1ac71e5 | 2010-07-29 19:27:09 +0200 | [diff] [blame] | 869 | i = pcmcia_enable_device(link); |
Dominik Brodowski | 9ac3e58 | 2009-10-24 15:45:06 +0200 | [diff] [blame] | 870 | if (i != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 871 | goto failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 872 | |
| 873 | if (bluecard_open(info) != 0) |
| 874 | goto failed; |
| 875 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 876 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 877 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 878 | failed: |
| 879 | bluecard_release(link); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 880 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | } |
| 882 | |
| 883 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 884 | static void bluecard_release(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 885 | { |
Himangi Saraogi | d664cd9 | 2014-08-13 14:53:31 +0530 | [diff] [blame] | 886 | struct bluecard_info *info = link->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 888 | bluecard_close(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 889 | |
Thomas Gleixner | d8ff9cd | 2014-03-23 15:09:31 +0000 | [diff] [blame] | 890 | del_timer_sync(&(info->timer)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 891 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 892 | pcmcia_disable_device(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 893 | } |
| 894 | |
Joe Perches | 25f8f54 | 2011-05-03 19:29:01 -0700 | [diff] [blame] | 895 | static const struct pcmcia_device_id bluecard_ids[] = { |
Dominik Brodowski | 7f70cb6 | 2005-06-27 16:28:35 -0700 | [diff] [blame] | 896 | PCMCIA_DEVICE_PROD_ID12("BlueCard", "LSE041", 0xbaf16fbf, 0x657cc15e), |
| 897 | PCMCIA_DEVICE_PROD_ID12("BTCFCARD", "LSE139", 0xe3987764, 0x2524b59c), |
| 898 | PCMCIA_DEVICE_PROD_ID12("WSS", "LSE039", 0x0a0736ec, 0x24e6dfab), |
| 899 | PCMCIA_DEVICE_NULL |
| 900 | }; |
| 901 | MODULE_DEVICE_TABLE(pcmcia, bluecard_ids); |
| 902 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 903 | static struct pcmcia_driver bluecard_driver = { |
| 904 | .owner = THIS_MODULE, |
Dominik Brodowski | 2e9b981 | 2010-08-08 11:36:26 +0200 | [diff] [blame] | 905 | .name = "bluecard_cs", |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 906 | .probe = bluecard_probe, |
Dominik Brodowski | cc3b486 | 2005-11-14 21:23:14 +0100 | [diff] [blame] | 907 | .remove = bluecard_detach, |
Dominik Brodowski | 7f70cb6 | 2005-06-27 16:28:35 -0700 | [diff] [blame] | 908 | .id_table = bluecard_ids, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 909 | }; |
H Hartley Sweeten | e0c005f | 2013-03-06 11:26:24 -0700 | [diff] [blame] | 910 | module_pcmcia_driver(bluecard_driver); |