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1da177e4 LT |
1 | /* |
2 | * | |
3 | * A driver for Nokia Connectivity Card DTL-1 devices | |
4 | * | |
5 | * Copyright (C) 2001-2002 Marcel Holtmann <marcel@holtmann.org> | |
6 | * | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation; | |
11 | * | |
12 | * Software distributed under the License is distributed on an "AS | |
13 | * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or | |
14 | * implied. See the License for the specific language governing | |
15 | * rights and limitations under the License. | |
16 | * | |
17 | * The initial developer of the original code is David A. Hinds | |
18 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
19 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
20 | * | |
21 | */ | |
22 | ||
23 | #include <linux/config.h> | |
24 | #include <linux/module.h> | |
25 | ||
26 | #include <linux/kernel.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/types.h> | |
30 | #include <linux/sched.h> | |
31 | #include <linux/delay.h> | |
32 | #include <linux/errno.h> | |
33 | #include <linux/ptrace.h> | |
34 | #include <linux/ioport.h> | |
35 | #include <linux/spinlock.h> | |
36 | #include <linux/moduleparam.h> | |
37 | ||
38 | #include <linux/skbuff.h> | |
39 | #include <linux/string.h> | |
40 | #include <linux/serial.h> | |
41 | #include <linux/serial_reg.h> | |
42 | #include <linux/bitops.h> | |
43 | #include <asm/system.h> | |
44 | #include <asm/io.h> | |
45 | ||
1da177e4 LT |
46 | #include <pcmcia/cs_types.h> |
47 | #include <pcmcia/cs.h> | |
48 | #include <pcmcia/cistpl.h> | |
49 | #include <pcmcia/ciscode.h> | |
50 | #include <pcmcia/ds.h> | |
51 | #include <pcmcia/cisreg.h> | |
52 | ||
53 | #include <net/bluetooth/bluetooth.h> | |
54 | #include <net/bluetooth/hci_core.h> | |
55 | ||
56 | ||
57 | ||
58 | /* ======================== Module parameters ======================== */ | |
59 | ||
60 | ||
61 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); | |
62 | MODULE_DESCRIPTION("Bluetooth driver for Nokia Connectivity Card DTL-1"); | |
63 | MODULE_LICENSE("GPL"); | |
64 | ||
65 | ||
66 | ||
67 | /* ======================== Local structures ======================== */ | |
68 | ||
69 | ||
70 | typedef struct dtl1_info_t { | |
71 | dev_link_t link; | |
72 | dev_node_t node; | |
73 | ||
74 | struct hci_dev *hdev; | |
75 | ||
76 | spinlock_t lock; /* For serializing operations */ | |
77 | ||
78 | unsigned long flowmask; /* HCI flow mask */ | |
79 | int ri_latch; | |
80 | ||
81 | struct sk_buff_head txq; | |
82 | unsigned long tx_state; | |
83 | ||
84 | unsigned long rx_state; | |
85 | unsigned long rx_count; | |
86 | struct sk_buff *rx_skb; | |
87 | } dtl1_info_t; | |
88 | ||
89 | ||
90 | static void dtl1_config(dev_link_t *link); | |
91 | static void dtl1_release(dev_link_t *link); | |
92 | static int dtl1_event(event_t event, int priority, event_callback_args_t *args); | |
93 | ||
94 | static dev_info_t dev_info = "dtl1_cs"; | |
95 | ||
96 | static dev_link_t *dtl1_attach(void); | |
97 | static void dtl1_detach(dev_link_t *); | |
98 | ||
99 | static dev_link_t *dev_list = NULL; | |
100 | ||
101 | ||
102 | /* Transmit states */ | |
103 | #define XMIT_SENDING 1 | |
104 | #define XMIT_WAKEUP 2 | |
105 | #define XMIT_WAITING 8 | |
106 | ||
107 | /* Receiver States */ | |
108 | #define RECV_WAIT_NSH 0 | |
109 | #define RECV_WAIT_DATA 1 | |
110 | ||
111 | ||
112 | typedef struct { | |
113 | u8 type; | |
114 | u8 zero; | |
115 | u16 len; | |
116 | } __attribute__ ((packed)) nsh_t; /* Nokia Specific Header */ | |
117 | ||
118 | #define NSHL 4 /* Nokia Specific Header Length */ | |
119 | ||
120 | ||
121 | ||
122 | /* ======================== Interrupt handling ======================== */ | |
123 | ||
124 | ||
125 | static int dtl1_write(unsigned int iobase, int fifo_size, __u8 *buf, int len) | |
126 | { | |
127 | int actual = 0; | |
128 | ||
129 | /* Tx FIFO should be empty */ | |
130 | if (!(inb(iobase + UART_LSR) & UART_LSR_THRE)) | |
131 | return 0; | |
132 | ||
133 | /* Fill FIFO with current frame */ | |
134 | while ((fifo_size-- > 0) && (actual < len)) { | |
135 | /* Transmit next byte */ | |
136 | outb(buf[actual], iobase + UART_TX); | |
137 | actual++; | |
138 | } | |
139 | ||
140 | return actual; | |
141 | } | |
142 | ||
143 | ||
144 | static void dtl1_write_wakeup(dtl1_info_t *info) | |
145 | { | |
146 | if (!info) { | |
147 | BT_ERR("Unknown device"); | |
148 | return; | |
149 | } | |
150 | ||
151 | if (test_bit(XMIT_WAITING, &(info->tx_state))) { | |
152 | set_bit(XMIT_WAKEUP, &(info->tx_state)); | |
153 | return; | |
154 | } | |
155 | ||
156 | if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) { | |
157 | set_bit(XMIT_WAKEUP, &(info->tx_state)); | |
158 | return; | |
159 | } | |
160 | ||
161 | do { | |
162 | register unsigned int iobase = info->link.io.BasePort1; | |
163 | register struct sk_buff *skb; | |
164 | register int len; | |
165 | ||
166 | clear_bit(XMIT_WAKEUP, &(info->tx_state)); | |
167 | ||
168 | if (!(info->link.state & DEV_PRESENT)) | |
169 | return; | |
170 | ||
171 | if (!(skb = skb_dequeue(&(info->txq)))) | |
172 | break; | |
173 | ||
174 | /* Send frame */ | |
175 | len = dtl1_write(iobase, 32, skb->data, skb->len); | |
176 | ||
177 | if (len == skb->len) { | |
178 | set_bit(XMIT_WAITING, &(info->tx_state)); | |
179 | kfree_skb(skb); | |
180 | } else { | |
181 | skb_pull(skb, len); | |
182 | skb_queue_head(&(info->txq), skb); | |
183 | } | |
184 | ||
185 | info->hdev->stat.byte_tx += len; | |
186 | ||
187 | } while (test_bit(XMIT_WAKEUP, &(info->tx_state))); | |
188 | ||
189 | clear_bit(XMIT_SENDING, &(info->tx_state)); | |
190 | } | |
191 | ||
192 | ||
193 | static void dtl1_control(dtl1_info_t *info, struct sk_buff *skb) | |
194 | { | |
195 | u8 flowmask = *(u8 *)skb->data; | |
196 | int i; | |
197 | ||
198 | printk(KERN_INFO "Bluetooth: Nokia control data ="); | |
199 | for (i = 0; i < skb->len; i++) { | |
200 | printk(" %02x", skb->data[i]); | |
201 | } | |
202 | printk("\n"); | |
203 | ||
204 | /* transition to active state */ | |
205 | if (((info->flowmask & 0x07) == 0) && ((flowmask & 0x07) != 0)) { | |
206 | clear_bit(XMIT_WAITING, &(info->tx_state)); | |
207 | dtl1_write_wakeup(info); | |
208 | } | |
209 | ||
210 | info->flowmask = flowmask; | |
211 | ||
212 | kfree_skb(skb); | |
213 | } | |
214 | ||
215 | ||
216 | static void dtl1_receive(dtl1_info_t *info) | |
217 | { | |
218 | unsigned int iobase; | |
219 | nsh_t *nsh; | |
220 | int boguscount = 0; | |
221 | ||
222 | if (!info) { | |
223 | BT_ERR("Unknown device"); | |
224 | return; | |
225 | } | |
226 | ||
227 | iobase = info->link.io.BasePort1; | |
228 | ||
229 | do { | |
230 | info->hdev->stat.byte_rx++; | |
231 | ||
232 | /* Allocate packet */ | |
233 | if (info->rx_skb == NULL) | |
234 | if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { | |
235 | BT_ERR("Can't allocate mem for new packet"); | |
236 | info->rx_state = RECV_WAIT_NSH; | |
237 | info->rx_count = NSHL; | |
238 | return; | |
239 | } | |
240 | ||
241 | *skb_put(info->rx_skb, 1) = inb(iobase + UART_RX); | |
242 | nsh = (nsh_t *)info->rx_skb->data; | |
243 | ||
244 | info->rx_count--; | |
245 | ||
246 | if (info->rx_count == 0) { | |
247 | ||
248 | switch (info->rx_state) { | |
249 | case RECV_WAIT_NSH: | |
250 | info->rx_state = RECV_WAIT_DATA; | |
251 | info->rx_count = nsh->len + (nsh->len & 0x0001); | |
252 | break; | |
253 | case RECV_WAIT_DATA: | |
0d48d939 | 254 | bt_cb(info->rx_skb)->pkt_type = nsh->type; |
1da177e4 LT |
255 | |
256 | /* remove PAD byte if it exists */ | |
257 | if (nsh->len & 0x0001) { | |
258 | info->rx_skb->tail--; | |
259 | info->rx_skb->len--; | |
260 | } | |
261 | ||
262 | /* remove NSH */ | |
263 | skb_pull(info->rx_skb, NSHL); | |
264 | ||
0d48d939 | 265 | switch (bt_cb(info->rx_skb)->pkt_type) { |
1da177e4 LT |
266 | case 0x80: |
267 | /* control data for the Nokia Card */ | |
268 | dtl1_control(info, info->rx_skb); | |
269 | break; | |
270 | case 0x82: | |
271 | case 0x83: | |
272 | case 0x84: | |
273 | /* send frame to the HCI layer */ | |
274 | info->rx_skb->dev = (void *) info->hdev; | |
0d48d939 | 275 | bt_cb(info->rx_skb)->pkt_type &= 0x0f; |
1da177e4 LT |
276 | hci_recv_frame(info->rx_skb); |
277 | break; | |
278 | default: | |
279 | /* unknown packet */ | |
0d48d939 | 280 | BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type); |
1da177e4 LT |
281 | kfree_skb(info->rx_skb); |
282 | break; | |
283 | } | |
284 | ||
285 | info->rx_state = RECV_WAIT_NSH; | |
286 | info->rx_count = NSHL; | |
287 | info->rx_skb = NULL; | |
288 | break; | |
289 | } | |
290 | ||
291 | } | |
292 | ||
293 | /* Make sure we don't stay here too long */ | |
294 | if (boguscount++ > 32) | |
295 | break; | |
296 | ||
297 | } while (inb(iobase + UART_LSR) & UART_LSR_DR); | |
298 | } | |
299 | ||
300 | ||
301 | static irqreturn_t dtl1_interrupt(int irq, void *dev_inst, struct pt_regs *regs) | |
302 | { | |
303 | dtl1_info_t *info = dev_inst; | |
304 | unsigned int iobase; | |
305 | unsigned char msr; | |
306 | int boguscount = 0; | |
307 | int iir, lsr; | |
308 | ||
309 | if (!info || !info->hdev) { | |
310 | BT_ERR("Call of irq %d for unknown device", irq); | |
311 | return IRQ_NONE; | |
312 | } | |
313 | ||
314 | iobase = info->link.io.BasePort1; | |
315 | ||
316 | spin_lock(&(info->lock)); | |
317 | ||
318 | iir = inb(iobase + UART_IIR) & UART_IIR_ID; | |
319 | while (iir) { | |
320 | ||
321 | /* Clear interrupt */ | |
322 | lsr = inb(iobase + UART_LSR); | |
323 | ||
324 | switch (iir) { | |
325 | case UART_IIR_RLSI: | |
326 | BT_ERR("RLSI"); | |
327 | break; | |
328 | case UART_IIR_RDI: | |
329 | /* Receive interrupt */ | |
330 | dtl1_receive(info); | |
331 | break; | |
332 | case UART_IIR_THRI: | |
333 | if (lsr & UART_LSR_THRE) { | |
334 | /* Transmitter ready for data */ | |
335 | dtl1_write_wakeup(info); | |
336 | } | |
337 | break; | |
338 | default: | |
339 | BT_ERR("Unhandled IIR=%#x", iir); | |
340 | break; | |
341 | } | |
342 | ||
343 | /* Make sure we don't stay here too long */ | |
344 | if (boguscount++ > 100) | |
345 | break; | |
346 | ||
347 | iir = inb(iobase + UART_IIR) & UART_IIR_ID; | |
348 | ||
349 | } | |
350 | ||
351 | msr = inb(iobase + UART_MSR); | |
352 | ||
353 | if (info->ri_latch ^ (msr & UART_MSR_RI)) { | |
354 | info->ri_latch = msr & UART_MSR_RI; | |
355 | clear_bit(XMIT_WAITING, &(info->tx_state)); | |
356 | dtl1_write_wakeup(info); | |
357 | } | |
358 | ||
359 | spin_unlock(&(info->lock)); | |
360 | ||
361 | return IRQ_HANDLED; | |
362 | } | |
363 | ||
364 | ||
365 | ||
366 | /* ======================== HCI interface ======================== */ | |
367 | ||
368 | ||
369 | static int dtl1_hci_open(struct hci_dev *hdev) | |
370 | { | |
371 | set_bit(HCI_RUNNING, &(hdev->flags)); | |
372 | ||
373 | return 0; | |
374 | } | |
375 | ||
376 | ||
377 | static int dtl1_hci_flush(struct hci_dev *hdev) | |
378 | { | |
379 | dtl1_info_t *info = (dtl1_info_t *)(hdev->driver_data); | |
380 | ||
381 | /* Drop TX queue */ | |
382 | skb_queue_purge(&(info->txq)); | |
383 | ||
384 | return 0; | |
385 | } | |
386 | ||
387 | ||
388 | static int dtl1_hci_close(struct hci_dev *hdev) | |
389 | { | |
390 | if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags))) | |
391 | return 0; | |
392 | ||
393 | dtl1_hci_flush(hdev); | |
394 | ||
395 | return 0; | |
396 | } | |
397 | ||
398 | ||
399 | static int dtl1_hci_send_frame(struct sk_buff *skb) | |
400 | { | |
401 | dtl1_info_t *info; | |
402 | struct hci_dev *hdev = (struct hci_dev *)(skb->dev); | |
403 | struct sk_buff *s; | |
404 | nsh_t nsh; | |
405 | ||
406 | if (!hdev) { | |
407 | BT_ERR("Frame for unknown HCI device (hdev=NULL)"); | |
408 | return -ENODEV; | |
409 | } | |
410 | ||
411 | info = (dtl1_info_t *)(hdev->driver_data); | |
412 | ||
0d48d939 | 413 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
414 | case HCI_COMMAND_PKT: |
415 | hdev->stat.cmd_tx++; | |
416 | nsh.type = 0x81; | |
417 | break; | |
418 | case HCI_ACLDATA_PKT: | |
419 | hdev->stat.acl_tx++; | |
420 | nsh.type = 0x82; | |
421 | break; | |
422 | case HCI_SCODATA_PKT: | |
423 | hdev->stat.sco_tx++; | |
424 | nsh.type = 0x83; | |
425 | break; | |
426 | }; | |
427 | ||
428 | nsh.zero = 0; | |
429 | nsh.len = skb->len; | |
430 | ||
431 | s = bt_skb_alloc(NSHL + skb->len + 1, GFP_ATOMIC); | |
432 | skb_reserve(s, NSHL); | |
433 | memcpy(skb_put(s, skb->len), skb->data, skb->len); | |
434 | if (skb->len & 0x0001) | |
435 | *skb_put(s, 1) = 0; /* PAD */ | |
436 | ||
437 | /* Prepend skb with Nokia frame header and queue */ | |
438 | memcpy(skb_push(s, NSHL), &nsh, NSHL); | |
439 | skb_queue_tail(&(info->txq), s); | |
440 | ||
441 | dtl1_write_wakeup(info); | |
442 | ||
443 | kfree_skb(skb); | |
444 | ||
445 | return 0; | |
446 | } | |
447 | ||
448 | ||
449 | static void dtl1_hci_destruct(struct hci_dev *hdev) | |
450 | { | |
451 | } | |
452 | ||
453 | ||
454 | static int dtl1_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) | |
455 | { | |
456 | return -ENOIOCTLCMD; | |
457 | } | |
458 | ||
459 | ||
460 | ||
461 | /* ======================== Card services HCI interaction ======================== */ | |
462 | ||
463 | ||
464 | static int dtl1_open(dtl1_info_t *info) | |
465 | { | |
466 | unsigned long flags; | |
467 | unsigned int iobase = info->link.io.BasePort1; | |
468 | struct hci_dev *hdev; | |
469 | ||
470 | spin_lock_init(&(info->lock)); | |
471 | ||
472 | skb_queue_head_init(&(info->txq)); | |
473 | ||
474 | info->rx_state = RECV_WAIT_NSH; | |
475 | info->rx_count = NSHL; | |
476 | info->rx_skb = NULL; | |
477 | ||
478 | set_bit(XMIT_WAITING, &(info->tx_state)); | |
479 | ||
480 | /* Initialize HCI device */ | |
481 | hdev = hci_alloc_dev(); | |
482 | if (!hdev) { | |
483 | BT_ERR("Can't allocate HCI device"); | |
484 | return -ENOMEM; | |
485 | } | |
486 | ||
487 | info->hdev = hdev; | |
488 | ||
489 | hdev->type = HCI_PCCARD; | |
490 | hdev->driver_data = info; | |
491 | ||
492 | hdev->open = dtl1_hci_open; | |
493 | hdev->close = dtl1_hci_close; | |
494 | hdev->flush = dtl1_hci_flush; | |
495 | hdev->send = dtl1_hci_send_frame; | |
496 | hdev->destruct = dtl1_hci_destruct; | |
497 | hdev->ioctl = dtl1_hci_ioctl; | |
498 | ||
499 | hdev->owner = THIS_MODULE; | |
500 | ||
501 | spin_lock_irqsave(&(info->lock), flags); | |
502 | ||
503 | /* Reset UART */ | |
504 | outb(0, iobase + UART_MCR); | |
505 | ||
506 | /* Turn off interrupts */ | |
507 | outb(0, iobase + UART_IER); | |
508 | ||
509 | /* Initialize UART */ | |
510 | outb(UART_LCR_WLEN8, iobase + UART_LCR); /* Reset DLAB */ | |
511 | outb((UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2), iobase + UART_MCR); | |
512 | ||
513 | info->ri_latch = inb(info->link.io.BasePort1 + UART_MSR) & UART_MSR_RI; | |
514 | ||
515 | /* Turn on interrupts */ | |
516 | outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER); | |
517 | ||
518 | spin_unlock_irqrestore(&(info->lock), flags); | |
519 | ||
520 | /* Timeout before it is safe to send the first HCI packet */ | |
521 | msleep(2000); | |
522 | ||
523 | /* Register HCI device */ | |
524 | if (hci_register_dev(hdev) < 0) { | |
525 | BT_ERR("Can't register HCI device"); | |
526 | info->hdev = NULL; | |
527 | hci_free_dev(hdev); | |
528 | return -ENODEV; | |
529 | } | |
530 | ||
531 | return 0; | |
532 | } | |
533 | ||
534 | ||
535 | static int dtl1_close(dtl1_info_t *info) | |
536 | { | |
537 | unsigned long flags; | |
538 | unsigned int iobase = info->link.io.BasePort1; | |
539 | struct hci_dev *hdev = info->hdev; | |
540 | ||
541 | if (!hdev) | |
542 | return -ENODEV; | |
543 | ||
544 | dtl1_hci_close(hdev); | |
545 | ||
546 | spin_lock_irqsave(&(info->lock), flags); | |
547 | ||
548 | /* Reset UART */ | |
549 | outb(0, iobase + UART_MCR); | |
550 | ||
551 | /* Turn off interrupts */ | |
552 | outb(0, iobase + UART_IER); | |
553 | ||
554 | spin_unlock_irqrestore(&(info->lock), flags); | |
555 | ||
556 | if (hci_unregister_dev(hdev) < 0) | |
557 | BT_ERR("Can't unregister HCI device %s", hdev->name); | |
558 | ||
559 | hci_free_dev(hdev); | |
560 | ||
561 | return 0; | |
562 | } | |
563 | ||
564 | static dev_link_t *dtl1_attach(void) | |
565 | { | |
566 | dtl1_info_t *info; | |
567 | client_reg_t client_reg; | |
568 | dev_link_t *link; | |
569 | int ret; | |
570 | ||
571 | /* Create new info device */ | |
572 | info = kmalloc(sizeof(*info), GFP_KERNEL); | |
573 | if (!info) | |
574 | return NULL; | |
575 | memset(info, 0, sizeof(*info)); | |
576 | ||
577 | link = &info->link; | |
578 | link->priv = info; | |
579 | ||
580 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
581 | link->io.NumPorts1 = 8; | |
582 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; | |
583 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; | |
584 | ||
585 | link->irq.Handler = dtl1_interrupt; | |
586 | link->irq.Instance = info; | |
587 | ||
588 | link->conf.Attributes = CONF_ENABLE_IRQ; | |
589 | link->conf.Vcc = 50; | |
590 | link->conf.IntType = INT_MEMORY_AND_IO; | |
591 | ||
592 | /* Register with Card Services */ | |
593 | link->next = dev_list; | |
594 | dev_list = link; | |
595 | client_reg.dev_info = &dev_info; | |
1da177e4 LT |
596 | client_reg.Version = 0x0210; |
597 | client_reg.event_callback_args.client_data = link; | |
598 | ||
599 | ret = pcmcia_register_client(&link->handle, &client_reg); | |
600 | if (ret != CS_SUCCESS) { | |
601 | cs_error(link->handle, RegisterClient, ret); | |
602 | dtl1_detach(link); | |
603 | return NULL; | |
604 | } | |
605 | ||
606 | return link; | |
607 | } | |
608 | ||
609 | ||
610 | static void dtl1_detach(dev_link_t *link) | |
611 | { | |
612 | dtl1_info_t *info = link->priv; | |
613 | dev_link_t **linkp; | |
614 | int ret; | |
615 | ||
616 | /* Locate device structure */ | |
617 | for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) | |
618 | if (*linkp == link) | |
619 | break; | |
620 | ||
621 | if (*linkp == NULL) | |
622 | return; | |
623 | ||
624 | if (link->state & DEV_CONFIG) | |
625 | dtl1_release(link); | |
626 | ||
627 | if (link->handle) { | |
628 | ret = pcmcia_deregister_client(link->handle); | |
629 | if (ret != CS_SUCCESS) | |
630 | cs_error(link->handle, DeregisterClient, ret); | |
631 | } | |
632 | ||
633 | /* Unlink device structure, free bits */ | |
634 | *linkp = link->next; | |
635 | ||
636 | kfree(info); | |
637 | } | |
638 | ||
639 | static int get_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse) | |
640 | { | |
641 | int i; | |
642 | ||
643 | i = pcmcia_get_tuple_data(handle, tuple); | |
644 | if (i != CS_SUCCESS) | |
645 | return i; | |
646 | ||
647 | return pcmcia_parse_tuple(handle, tuple, parse); | |
648 | } | |
649 | ||
650 | static int first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse) | |
651 | { | |
652 | if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS) | |
653 | return CS_NO_MORE_ITEMS; | |
654 | return get_tuple(handle, tuple, parse); | |
655 | } | |
656 | ||
657 | static int next_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse) | |
658 | { | |
659 | if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS) | |
660 | return CS_NO_MORE_ITEMS; | |
661 | return get_tuple(handle, tuple, parse); | |
662 | } | |
663 | ||
664 | static void dtl1_config(dev_link_t *link) | |
665 | { | |
666 | client_handle_t handle = link->handle; | |
667 | dtl1_info_t *info = link->priv; | |
668 | tuple_t tuple; | |
669 | u_short buf[256]; | |
670 | cisparse_t parse; | |
671 | cistpl_cftable_entry_t *cf = &parse.cftable_entry; | |
672 | config_info_t config; | |
673 | int i, last_ret, last_fn; | |
674 | ||
675 | tuple.TupleData = (cisdata_t *)buf; | |
676 | tuple.TupleOffset = 0; | |
677 | tuple.TupleDataMax = 255; | |
678 | tuple.Attributes = 0; | |
679 | ||
680 | /* Get configuration register information */ | |
681 | tuple.DesiredTuple = CISTPL_CONFIG; | |
682 | last_ret = first_tuple(handle, &tuple, &parse); | |
683 | if (last_ret != CS_SUCCESS) { | |
684 | last_fn = ParseTuple; | |
685 | goto cs_failed; | |
686 | } | |
687 | link->conf.ConfigBase = parse.config.base; | |
688 | link->conf.Present = parse.config.rmask[0]; | |
689 | ||
690 | /* Configure card */ | |
691 | link->state |= DEV_CONFIG; | |
692 | i = pcmcia_get_configuration_info(handle, &config); | |
693 | link->conf.Vcc = config.Vcc; | |
694 | ||
695 | tuple.TupleData = (cisdata_t *)buf; | |
696 | tuple.TupleOffset = 0; | |
697 | tuple.TupleDataMax = 255; | |
698 | tuple.Attributes = 0; | |
699 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
700 | ||
701 | /* Look for a generic full-sized window */ | |
702 | link->io.NumPorts1 = 8; | |
703 | i = first_tuple(handle, &tuple, &parse); | |
704 | while (i != CS_NO_MORE_ITEMS) { | |
705 | if ((i == CS_SUCCESS) && (cf->io.nwin == 1) && (cf->io.win[0].len > 8)) { | |
706 | link->conf.ConfigIndex = cf->index; | |
707 | link->io.BasePort1 = cf->io.win[0].base; | |
708 | link->io.NumPorts1 = cf->io.win[0].len; /*yo */ | |
709 | link->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK; | |
710 | i = pcmcia_request_io(link->handle, &link->io); | |
711 | if (i == CS_SUCCESS) | |
712 | break; | |
713 | } | |
714 | i = next_tuple(handle, &tuple, &parse); | |
715 | } | |
716 | ||
717 | if (i != CS_SUCCESS) { | |
718 | cs_error(link->handle, RequestIO, i); | |
719 | goto failed; | |
720 | } | |
721 | ||
722 | i = pcmcia_request_irq(link->handle, &link->irq); | |
723 | if (i != CS_SUCCESS) { | |
724 | cs_error(link->handle, RequestIRQ, i); | |
725 | link->irq.AssignedIRQ = 0; | |
726 | } | |
727 | ||
728 | i = pcmcia_request_configuration(link->handle, &link->conf); | |
729 | if (i != CS_SUCCESS) { | |
730 | cs_error(link->handle, RequestConfiguration, i); | |
731 | goto failed; | |
732 | } | |
733 | ||
734 | if (dtl1_open(info) != 0) | |
735 | goto failed; | |
736 | ||
737 | strcpy(info->node.dev_name, info->hdev->name); | |
738 | link->dev = &info->node; | |
739 | link->state &= ~DEV_CONFIG_PENDING; | |
740 | ||
741 | return; | |
742 | ||
743 | cs_failed: | |
744 | cs_error(link->handle, last_fn, last_ret); | |
745 | ||
746 | failed: | |
747 | dtl1_release(link); | |
748 | } | |
749 | ||
750 | ||
751 | static void dtl1_release(dev_link_t *link) | |
752 | { | |
753 | dtl1_info_t *info = link->priv; | |
754 | ||
755 | if (link->state & DEV_PRESENT) | |
756 | dtl1_close(info); | |
757 | ||
758 | link->dev = NULL; | |
759 | ||
760 | pcmcia_release_configuration(link->handle); | |
761 | pcmcia_release_io(link->handle, &link->io); | |
762 | pcmcia_release_irq(link->handle, &link->irq); | |
763 | ||
764 | link->state &= ~DEV_CONFIG; | |
765 | } | |
766 | ||
767 | ||
768 | static int dtl1_event(event_t event, int priority, event_callback_args_t *args) | |
769 | { | |
770 | dev_link_t *link = args->client_data; | |
771 | dtl1_info_t *info = link->priv; | |
772 | ||
773 | switch (event) { | |
774 | case CS_EVENT_CARD_REMOVAL: | |
775 | link->state &= ~DEV_PRESENT; | |
776 | if (link->state & DEV_CONFIG) { | |
777 | dtl1_close(info); | |
778 | dtl1_release(link); | |
779 | } | |
780 | break; | |
781 | case CS_EVENT_CARD_INSERTION: | |
782 | link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; | |
783 | dtl1_config(link); | |
784 | break; | |
785 | case CS_EVENT_PM_SUSPEND: | |
786 | link->state |= DEV_SUSPEND; | |
787 | /* Fall through... */ | |
788 | case CS_EVENT_RESET_PHYSICAL: | |
789 | if (link->state & DEV_CONFIG) | |
790 | pcmcia_release_configuration(link->handle); | |
791 | break; | |
792 | case CS_EVENT_PM_RESUME: | |
793 | link->state &= ~DEV_SUSPEND; | |
794 | /* Fall through... */ | |
795 | case CS_EVENT_CARD_RESET: | |
796 | if (DEV_OK(link)) | |
797 | pcmcia_request_configuration(link->handle, &link->conf); | |
798 | break; | |
799 | } | |
800 | ||
801 | return 0; | |
802 | } | |
803 | ||
88eca2e5 DB |
804 | static struct pcmcia_device_id dtl1_ids[] = { |
805 | PCMCIA_DEVICE_PROD_ID12("Nokia Mobile Phones", "DTL-1", 0xe1bfdd64, 0xe168480d), | |
806 | PCMCIA_DEVICE_PROD_ID12("Socket", "CF", 0xb38bcc2e, 0x44ebf863), | |
807 | PCMCIA_DEVICE_NULL | |
808 | }; | |
809 | MODULE_DEVICE_TABLE(pcmcia, dtl1_ids); | |
810 | ||
1da177e4 LT |
811 | static struct pcmcia_driver dtl1_driver = { |
812 | .owner = THIS_MODULE, | |
813 | .drv = { | |
814 | .name = "dtl1_cs", | |
815 | }, | |
816 | .attach = dtl1_attach, | |
1e212f36 | 817 | .event = dtl1_event, |
1da177e4 | 818 | .detach = dtl1_detach, |
88eca2e5 | 819 | .id_table = dtl1_ids, |
1da177e4 LT |
820 | }; |
821 | ||
822 | static int __init init_dtl1_cs(void) | |
823 | { | |
824 | return pcmcia_register_driver(&dtl1_driver); | |
825 | } | |
826 | ||
827 | ||
828 | static void __exit exit_dtl1_cs(void) | |
829 | { | |
830 | pcmcia_unregister_driver(&dtl1_driver); | |
831 | BUG_ON(dev_list != NULL); | |
832 | } | |
833 | ||
834 | module_init(init_dtl1_cs); | |
835 | module_exit(exit_dtl1_cs); |