]>
Commit | Line | Data |
---|---|---|
27590d06 HS |
1 | /* |
2 | ||
3 | Driver for the Marvell 8385 based compact flash WLAN cards. | |
4 | ||
5 | (C) 2007 by Holger Schurig <hs4233@mail.mn-solutions.de> | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; see the file COPYING. If not, write to | |
19 | the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, | |
20 | Boston, MA 02110-1301, USA. | |
21 | ||
22 | */ | |
23 | ||
24 | #include <linux/module.h> | |
5a0e3ad6 | 25 | #include <linux/slab.h> |
27590d06 HS |
26 | #include <linux/delay.h> |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/firmware.h> | |
29 | #include <linux/netdevice.h> | |
30 | ||
31 | #include <pcmcia/cs_types.h> | |
32 | #include <pcmcia/cs.h> | |
33 | #include <pcmcia/cistpl.h> | |
34 | #include <pcmcia/ds.h> | |
35 | ||
36 | #include <linux/io.h> | |
37 | ||
38 | #define DRV_NAME "libertas_cs" | |
39 | ||
40 | #include "decl.h" | |
41 | #include "defs.h" | |
42 | #include "dev.h" | |
43 | ||
44 | ||
45 | /********************************************************************/ | |
46 | /* Module stuff */ | |
47 | /********************************************************************/ | |
48 | ||
49 | MODULE_AUTHOR("Holger Schurig <hs4233@mail.mn-solutions.de>"); | |
50 | MODULE_DESCRIPTION("Driver for Marvell 83xx compact flash WLAN cards"); | |
51 | MODULE_LICENSE("GPL"); | |
a974a4bb | 52 | MODULE_FIRMWARE("libertas_cs_helper.fw"); |
27590d06 HS |
53 | |
54 | ||
55 | ||
56 | /********************************************************************/ | |
57 | /* Data structures */ | |
58 | /********************************************************************/ | |
59 | ||
60 | struct if_cs_card { | |
61 | struct pcmcia_device *p_dev; | |
69f9032d | 62 | struct lbs_private *priv; |
27590d06 | 63 | void __iomem *iobase; |
9d45368a | 64 | bool align_regs; |
27590d06 HS |
65 | }; |
66 | ||
67 | ||
68 | ||
69 | /********************************************************************/ | |
70 | /* Hardware access */ | |
71 | /********************************************************************/ | |
72 | ||
73 | /* This define enables wrapper functions which allow you | |
74 | to dump all register accesses. You normally won't this, | |
75 | except for development */ | |
76 | /* #define DEBUG_IO */ | |
77 | ||
78 | #ifdef DEBUG_IO | |
79 | static int debug_output = 0; | |
80 | #else | |
81 | /* This way the compiler optimizes the printk's away */ | |
82 | #define debug_output 0 | |
83 | #endif | |
84 | ||
85 | static inline unsigned int if_cs_read8(struct if_cs_card *card, uint reg) | |
86 | { | |
87 | unsigned int val = ioread8(card->iobase + reg); | |
88 | if (debug_output) | |
7919b89c | 89 | printk(KERN_INFO "inb %08x<%02x\n", reg, val); |
27590d06 HS |
90 | return val; |
91 | } | |
92 | static inline unsigned int if_cs_read16(struct if_cs_card *card, uint reg) | |
93 | { | |
94 | unsigned int val = ioread16(card->iobase + reg); | |
95 | if (debug_output) | |
7919b89c | 96 | printk(KERN_INFO "inw %08x<%04x\n", reg, val); |
27590d06 HS |
97 | return val; |
98 | } | |
99 | static inline void if_cs_read16_rep( | |
100 | struct if_cs_card *card, | |
101 | uint reg, | |
102 | void *buf, | |
103 | unsigned long count) | |
104 | { | |
105 | if (debug_output) | |
7919b89c | 106 | printk(KERN_INFO "insw %08x<(0x%lx words)\n", |
27590d06 HS |
107 | reg, count); |
108 | ioread16_rep(card->iobase + reg, buf, count); | |
109 | } | |
110 | ||
111 | static inline void if_cs_write8(struct if_cs_card *card, uint reg, u8 val) | |
112 | { | |
113 | if (debug_output) | |
7919b89c | 114 | printk(KERN_INFO "outb %08x>%02x\n", reg, val); |
27590d06 HS |
115 | iowrite8(val, card->iobase + reg); |
116 | } | |
117 | ||
118 | static inline void if_cs_write16(struct if_cs_card *card, uint reg, u16 val) | |
119 | { | |
120 | if (debug_output) | |
7919b89c | 121 | printk(KERN_INFO "outw %08x>%04x\n", reg, val); |
27590d06 HS |
122 | iowrite16(val, card->iobase + reg); |
123 | } | |
124 | ||
125 | static inline void if_cs_write16_rep( | |
126 | struct if_cs_card *card, | |
127 | uint reg, | |
6dfff895 | 128 | const void *buf, |
27590d06 HS |
129 | unsigned long count) |
130 | { | |
131 | if (debug_output) | |
7919b89c | 132 | printk(KERN_INFO "outsw %08x>(0x%lx words)\n", |
27590d06 HS |
133 | reg, count); |
134 | iowrite16_rep(card->iobase + reg, buf, count); | |
135 | } | |
136 | ||
137 | ||
138 | /* | |
139 | * I know that polling/delaying is frowned upon. However, this procedure | |
140 | * with polling is needed while downloading the firmware. At this stage, | |
141 | * the hardware does unfortunately not create any interrupts. | |
142 | * | |
143 | * Fortunately, this function is never used once the firmware is in | |
144 | * the card. :-) | |
145 | * | |
146 | * As a reference, see the "Firmware Specification v5.1", page 18 | |
147 | * and 19. I did not follow their suggested timing to the word, | |
148 | * but this works nice & fast anyway. | |
149 | */ | |
150 | static int if_cs_poll_while_fw_download(struct if_cs_card *card, uint addr, u8 reg) | |
151 | { | |
152 | int i; | |
153 | ||
93416c87 | 154 | for (i = 0; i < 100000; i++) { |
27590d06 HS |
155 | u8 val = if_cs_read8(card, addr); |
156 | if (val == reg) | |
1fac36ee | 157 | return 0; |
93416c87 | 158 | udelay(5); |
27590d06 HS |
159 | } |
160 | return -ETIME; | |
161 | } | |
162 | ||
163 | ||
164 | ||
53143256 HS |
165 | /* |
166 | * First the bitmasks for the host/card interrupt/status registers: | |
167 | */ | |
78cf0747 HS |
168 | #define IF_CS_BIT_TX 0x0001 |
169 | #define IF_CS_BIT_RX 0x0002 | |
170 | #define IF_CS_BIT_COMMAND 0x0004 | |
171 | #define IF_CS_BIT_RESP 0x0008 | |
172 | #define IF_CS_BIT_EVENT 0x0010 | |
173 | #define IF_CS_BIT_MASK 0x001f | |
27590d06 | 174 | |
53143256 HS |
175 | |
176 | ||
177 | /* | |
178 | * It's not really clear to me what the host status register is for. It | |
179 | * needs to be set almost in union with "host int cause". The following | |
180 | * bits from above are used: | |
181 | * | |
182 | * IF_CS_BIT_TX driver downloaded a data packet | |
183 | * IF_CS_BIT_RX driver got a data packet | |
184 | * IF_CS_BIT_COMMAND driver downloaded a command | |
185 | * IF_CS_BIT_RESP not used (has some meaning with powerdown) | |
186 | * IF_CS_BIT_EVENT driver read a host event | |
187 | */ | |
78cf0747 | 188 | #define IF_CS_HOST_STATUS 0x00000000 |
27590d06 | 189 | |
53143256 HS |
190 | /* |
191 | * With the host int cause register can the host (that is, Linux) cause | |
192 | * an interrupt in the firmware, to tell the firmware about those events: | |
193 | * | |
194 | * IF_CS_BIT_TX a data packet has been downloaded | |
195 | * IF_CS_BIT_RX a received data packet has retrieved | |
196 | * IF_CS_BIT_COMMAND a firmware block or a command has been downloaded | |
197 | * IF_CS_BIT_RESP not used (has some meaning with powerdown) | |
198 | * IF_CS_BIT_EVENT a host event (link lost etc) has been retrieved | |
199 | */ | |
78cf0747 | 200 | #define IF_CS_HOST_INT_CAUSE 0x00000002 |
27590d06 | 201 | |
53143256 HS |
202 | /* |
203 | * The host int mask register is used to enable/disable interrupt. However, | |
204 | * I have the suspicion that disabled interrupts are lost. | |
205 | */ | |
78cf0747 | 206 | #define IF_CS_HOST_INT_MASK 0x00000004 |
27590d06 | 207 | |
53143256 HS |
208 | /* |
209 | * Used to send or receive data packets: | |
210 | */ | |
a78a8325 HS |
211 | #define IF_CS_WRITE 0x00000016 |
212 | #define IF_CS_WRITE_LEN 0x00000014 | |
78cf0747 HS |
213 | #define IF_CS_READ 0x00000010 |
214 | #define IF_CS_READ_LEN 0x00000024 | |
27590d06 | 215 | |
53143256 HS |
216 | /* |
217 | * Used to send commands (and to send firmware block) and to | |
218 | * receive command responses: | |
219 | */ | |
a78a8325 HS |
220 | #define IF_CS_CMD 0x0000001A |
221 | #define IF_CS_CMD_LEN 0x00000018 | |
222 | #define IF_CS_RESP 0x00000012 | |
223 | #define IF_CS_RESP_LEN 0x00000030 | |
27590d06 | 224 | |
53143256 HS |
225 | /* |
226 | * The card status registers shows what the card/firmware actually | |
227 | * accepts: | |
228 | * | |
229 | * IF_CS_BIT_TX you may send a data packet | |
230 | * IF_CS_BIT_RX you may retrieve a data packet | |
231 | * IF_CS_BIT_COMMAND you may send a command | |
232 | * IF_CS_BIT_RESP you may retrieve a command response | |
233 | * IF_CS_BIT_EVENT the card has a event for use (link lost, snr low etc) | |
234 | * | |
235 | * When reading this register several times, you will get back the same | |
236 | * results --- with one exception: the IF_CS_BIT_EVENT clear itself | |
237 | * automatically. | |
238 | * | |
239 | * Not that we don't rely on BIT_RX,_BIT_RESP or BIT_EVENT because | |
240 | * we handle this via the card int cause register. | |
241 | */ | |
78cf0747 HS |
242 | #define IF_CS_CARD_STATUS 0x00000020 |
243 | #define IF_CS_CARD_STATUS_MASK 0x7f00 | |
27590d06 | 244 | |
53143256 HS |
245 | /* |
246 | * The card int cause register is used by the card/firmware to notify us | |
247 | * about the following events: | |
248 | * | |
249 | * IF_CS_BIT_TX a data packet has successfully been sentx | |
250 | * IF_CS_BIT_RX a data packet has been received and can be retrieved | |
251 | * IF_CS_BIT_COMMAND not used | |
252 | * IF_CS_BIT_RESP the firmware has a command response for us | |
253 | * IF_CS_BIT_EVENT the card has a event for use (link lost, snr low etc) | |
254 | */ | |
78cf0747 | 255 | #define IF_CS_CARD_INT_CAUSE 0x00000022 |
27590d06 | 256 | |
53143256 HS |
257 | /* |
258 | * This is used to for handshaking with the card's bootloader/helper image | |
259 | * to synchronize downloading of firmware blocks. | |
260 | */ | |
a78a8325 HS |
261 | #define IF_CS_SQ_READ_LOW 0x00000028 |
262 | #define IF_CS_SQ_HELPER_OK 0x10 | |
27590d06 | 263 | |
53143256 HS |
264 | /* |
265 | * The scratch register tells us ... | |
266 | * | |
267 | * IF_CS_SCRATCH_BOOT_OK the bootloader runs | |
268 | * IF_CS_SCRATCH_HELPER_OK the helper firmware already runs | |
269 | */ | |
27590d06 | 270 | #define IF_CS_SCRATCH 0x0000003F |
53143256 HS |
271 | #define IF_CS_SCRATCH_BOOT_OK 0x00 |
272 | #define IF_CS_SCRATCH_HELPER_OK 0x5a | |
27590d06 | 273 | |
4c55523e HS |
274 | /* |
275 | * Used to detect ancient chips: | |
276 | */ | |
277 | #define IF_CS_PRODUCT_ID 0x0000001C | |
278 | #define IF_CS_CF8385_B1_REV 0x12 | |
dc7d243d | 279 | #define IF_CS_CF8381_B3_REV 0x04 |
9d45368a | 280 | #define IF_CS_CF8305_B1_REV 0x03 |
4c55523e | 281 | |
dc7d243d MV |
282 | /* |
283 | * Used to detect other cards than CF8385 since their revisions of silicon | |
284 | * doesn't match those from CF8385, eg. CF8381 B3 works with this driver. | |
285 | */ | |
9d45368a MV |
286 | #define CF8305_MANFID 0x02db |
287 | #define CF8305_CARDID 0x8103 | |
dc7d243d MV |
288 | #define CF8381_MANFID 0x02db |
289 | #define CF8381_CARDID 0x6064 | |
290 | #define CF8385_MANFID 0x02df | |
291 | #define CF8385_CARDID 0x8103 | |
292 | ||
9d45368a MV |
293 | static inline int if_cs_hw_is_cf8305(struct pcmcia_device *p_dev) |
294 | { | |
295 | return (p_dev->manf_id == CF8305_MANFID && | |
296 | p_dev->card_id == CF8305_CARDID); | |
297 | } | |
298 | ||
dc7d243d MV |
299 | static inline int if_cs_hw_is_cf8381(struct pcmcia_device *p_dev) |
300 | { | |
301 | return (p_dev->manf_id == CF8381_MANFID && | |
302 | p_dev->card_id == CF8381_CARDID); | |
303 | } | |
304 | ||
305 | static inline int if_cs_hw_is_cf8385(struct pcmcia_device *p_dev) | |
306 | { | |
307 | return (p_dev->manf_id == CF8385_MANFID && | |
308 | p_dev->card_id == CF8385_CARDID); | |
309 | } | |
27590d06 | 310 | |
27590d06 | 311 | /********************************************************************/ |
43d01c56 | 312 | /* I/O and interrupt handling */ |
27590d06 HS |
313 | /********************************************************************/ |
314 | ||
43d01c56 HS |
315 | static inline void if_cs_enable_ints(struct if_cs_card *card) |
316 | { | |
317 | lbs_deb_enter(LBS_DEB_CS); | |
78cf0747 | 318 | if_cs_write16(card, IF_CS_HOST_INT_MASK, 0); |
43d01c56 HS |
319 | } |
320 | ||
321 | static inline void if_cs_disable_ints(struct if_cs_card *card) | |
322 | { | |
323 | lbs_deb_enter(LBS_DEB_CS); | |
78cf0747 | 324 | if_cs_write16(card, IF_CS_HOST_INT_MASK, IF_CS_BIT_MASK); |
43d01c56 HS |
325 | } |
326 | ||
27590d06 HS |
327 | /* |
328 | * Called from if_cs_host_to_card to send a command to the hardware | |
329 | */ | |
69f9032d | 330 | static int if_cs_send_cmd(struct lbs_private *priv, u8 *buf, u16 nb) |
27590d06 HS |
331 | { |
332 | struct if_cs_card *card = (struct if_cs_card *)priv->card; | |
333 | int ret = -1; | |
334 | int loops = 0; | |
335 | ||
336 | lbs_deb_enter(LBS_DEB_CS); | |
43d01c56 | 337 | if_cs_disable_ints(card); |
27590d06 HS |
338 | |
339 | /* Is hardware ready? */ | |
340 | while (1) { | |
a78a8325 HS |
341 | u16 status = if_cs_read16(card, IF_CS_CARD_STATUS); |
342 | if (status & IF_CS_BIT_COMMAND) | |
27590d06 HS |
343 | break; |
344 | if (++loops > 100) { | |
345 | lbs_pr_err("card not ready for commands\n"); | |
346 | goto done; | |
347 | } | |
348 | mdelay(1); | |
349 | } | |
350 | ||
a78a8325 | 351 | if_cs_write16(card, IF_CS_CMD_LEN, nb); |
27590d06 | 352 | |
a78a8325 | 353 | if_cs_write16_rep(card, IF_CS_CMD, buf, nb / 2); |
27590d06 HS |
354 | /* Are we supposed to transfer an odd amount of bytes? */ |
355 | if (nb & 1) | |
a78a8325 | 356 | if_cs_write8(card, IF_CS_CMD, buf[nb-1]); |
27590d06 HS |
357 | |
358 | /* "Assert the download over interrupt command in the Host | |
359 | * status register" */ | |
78cf0747 | 360 | if_cs_write16(card, IF_CS_HOST_STATUS, IF_CS_BIT_COMMAND); |
27590d06 HS |
361 | |
362 | /* "Assert the download over interrupt command in the Card | |
363 | * interrupt case register" */ | |
78cf0747 | 364 | if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_COMMAND); |
27590d06 HS |
365 | ret = 0; |
366 | ||
367 | done: | |
43d01c56 | 368 | if_cs_enable_ints(card); |
27590d06 HS |
369 | lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret); |
370 | return ret; | |
371 | } | |
372 | ||
27590d06 HS |
373 | /* |
374 | * Called from if_cs_host_to_card to send a data to the hardware | |
375 | */ | |
69f9032d | 376 | static void if_cs_send_data(struct lbs_private *priv, u8 *buf, u16 nb) |
27590d06 HS |
377 | { |
378 | struct if_cs_card *card = (struct if_cs_card *)priv->card; | |
43d01c56 | 379 | u16 status; |
27590d06 HS |
380 | |
381 | lbs_deb_enter(LBS_DEB_CS); | |
43d01c56 HS |
382 | if_cs_disable_ints(card); |
383 | ||
78cf0747 HS |
384 | status = if_cs_read16(card, IF_CS_CARD_STATUS); |
385 | BUG_ON((status & IF_CS_BIT_TX) == 0); | |
27590d06 | 386 | |
a78a8325 | 387 | if_cs_write16(card, IF_CS_WRITE_LEN, nb); |
27590d06 HS |
388 | |
389 | /* write even number of bytes, then odd byte if necessary */ | |
a78a8325 | 390 | if_cs_write16_rep(card, IF_CS_WRITE, buf, nb / 2); |
27590d06 | 391 | if (nb & 1) |
a78a8325 | 392 | if_cs_write8(card, IF_CS_WRITE, buf[nb-1]); |
27590d06 | 393 | |
78cf0747 HS |
394 | if_cs_write16(card, IF_CS_HOST_STATUS, IF_CS_BIT_TX); |
395 | if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_TX); | |
43d01c56 | 396 | if_cs_enable_ints(card); |
27590d06 HS |
397 | |
398 | lbs_deb_leave(LBS_DEB_CS); | |
399 | } | |
400 | ||
27590d06 HS |
401 | /* |
402 | * Get the command result out of the card. | |
403 | */ | |
69f9032d | 404 | static int if_cs_receive_cmdres(struct lbs_private *priv, u8 *data, u32 *len) |
27590d06 | 405 | { |
7919b89c | 406 | unsigned long flags; |
27590d06 | 407 | int ret = -1; |
78cf0747 | 408 | u16 status; |
27590d06 HS |
409 | |
410 | lbs_deb_enter(LBS_DEB_CS); | |
411 | ||
412 | /* is hardware ready? */ | |
78cf0747 HS |
413 | status = if_cs_read16(priv->card, IF_CS_CARD_STATUS); |
414 | if ((status & IF_CS_BIT_RESP) == 0) { | |
415 | lbs_pr_err("no cmd response in card\n"); | |
416 | *len = 0; | |
27590d06 HS |
417 | goto out; |
418 | } | |
419 | ||
a78a8325 | 420 | *len = if_cs_read16(priv->card, IF_CS_RESP_LEN); |
ddac4526 | 421 | if ((*len == 0) || (*len > LBS_CMD_BUFFER_SIZE)) { |
27590d06 HS |
422 | lbs_pr_err("card cmd buffer has invalid # of bytes (%d)\n", *len); |
423 | goto out; | |
424 | } | |
425 | ||
426 | /* read even number of bytes, then odd byte if necessary */ | |
a78a8325 | 427 | if_cs_read16_rep(priv->card, IF_CS_RESP, data, *len/sizeof(u16)); |
27590d06 | 428 | if (*len & 1) |
a78a8325 | 429 | data[*len-1] = if_cs_read8(priv->card, IF_CS_RESP); |
27590d06 | 430 | |
09d4fad6 HS |
431 | /* This is a workaround for a firmware that reports too much |
432 | * bytes */ | |
433 | *len -= 8; | |
27590d06 | 434 | ret = 0; |
7919b89c HS |
435 | |
436 | /* Clear this flag again */ | |
437 | spin_lock_irqsave(&priv->driver_lock, flags); | |
438 | priv->dnld_sent = DNLD_RES_RECEIVED; | |
439 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
440 | ||
27590d06 HS |
441 | out: |
442 | lbs_deb_leave_args(LBS_DEB_CS, "ret %d, len %d", ret, *len); | |
443 | return ret; | |
444 | } | |
445 | ||
69f9032d | 446 | static struct sk_buff *if_cs_receive_data(struct lbs_private *priv) |
27590d06 HS |
447 | { |
448 | struct sk_buff *skb = NULL; | |
449 | u16 len; | |
450 | u8 *data; | |
451 | ||
452 | lbs_deb_enter(LBS_DEB_CS); | |
453 | ||
78cf0747 | 454 | len = if_cs_read16(priv->card, IF_CS_READ_LEN); |
27590d06 HS |
455 | if (len == 0 || len > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE) { |
456 | lbs_pr_err("card data buffer has invalid # of bytes (%d)\n", len); | |
bbfc6b78 | 457 | priv->dev->stats.rx_dropped++; |
27590d06 HS |
458 | goto dat_err; |
459 | } | |
460 | ||
f31ce76b | 461 | skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + 2); |
27590d06 HS |
462 | if (!skb) |
463 | goto out; | |
f31ce76b VD |
464 | skb_put(skb, len); |
465 | skb_reserve(skb, 2);/* 16 byte align */ | |
466 | data = skb->data; | |
27590d06 HS |
467 | |
468 | /* read even number of bytes, then odd byte if necessary */ | |
78cf0747 | 469 | if_cs_read16_rep(priv->card, IF_CS_READ, data, len/sizeof(u16)); |
27590d06 | 470 | if (len & 1) |
78cf0747 | 471 | data[len-1] = if_cs_read8(priv->card, IF_CS_READ); |
27590d06 HS |
472 | |
473 | dat_err: | |
78cf0747 HS |
474 | if_cs_write16(priv->card, IF_CS_HOST_STATUS, IF_CS_BIT_RX); |
475 | if_cs_write16(priv->card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_RX); | |
27590d06 HS |
476 | |
477 | out: | |
478 | lbs_deb_leave_args(LBS_DEB_CS, "ret %p", skb); | |
479 | return skb; | |
480 | } | |
481 | ||
7919b89c HS |
482 | static irqreturn_t if_cs_interrupt(int irq, void *data) |
483 | { | |
484 | struct if_cs_card *card = data; | |
485 | struct lbs_private *priv = card->priv; | |
486 | u16 cause; | |
487 | ||
488 | lbs_deb_enter(LBS_DEB_CS); | |
489 | ||
43d01c56 | 490 | /* Ask card interrupt cause register if there is something for us */ |
78cf0747 | 491 | cause = if_cs_read16(card, IF_CS_CARD_INT_CAUSE); |
30735561 HS |
492 | lbs_deb_cs("cause 0x%04x\n", cause); |
493 | ||
7919b89c HS |
494 | if (cause == 0) { |
495 | /* Not for us */ | |
496 | return IRQ_NONE; | |
497 | } | |
498 | ||
499 | if (cause == 0xffff) { | |
500 | /* Read in junk, the card has probably been removed */ | |
501 | card->priv->surpriseremoved = 1; | |
502 | return IRQ_HANDLED; | |
503 | } | |
504 | ||
78cf0747 | 505 | if (cause & IF_CS_BIT_RX) { |
7919b89c HS |
506 | struct sk_buff *skb; |
507 | lbs_deb_cs("rx packet\n"); | |
508 | skb = if_cs_receive_data(priv); | |
509 | if (skb) | |
510 | lbs_process_rxed_packet(priv, skb); | |
511 | } | |
512 | ||
78cf0747 | 513 | if (cause & IF_CS_BIT_TX) { |
43d01c56 | 514 | lbs_deb_cs("tx done\n"); |
7919b89c HS |
515 | lbs_host_to_card_done(priv); |
516 | } | |
517 | ||
78cf0747 | 518 | if (cause & IF_CS_BIT_RESP) { |
7919b89c HS |
519 | unsigned long flags; |
520 | u8 i; | |
521 | ||
43d01c56 | 522 | lbs_deb_cs("cmd resp\n"); |
7919b89c HS |
523 | spin_lock_irqsave(&priv->driver_lock, flags); |
524 | i = (priv->resp_idx == 0) ? 1 : 0; | |
525 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
526 | ||
527 | BUG_ON(priv->resp_len[i]); | |
528 | if_cs_receive_cmdres(priv, priv->resp_buf[i], | |
529 | &priv->resp_len[i]); | |
530 | ||
531 | spin_lock_irqsave(&priv->driver_lock, flags); | |
532 | lbs_notify_command_response(priv, i); | |
533 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
534 | } | |
535 | ||
78cf0747 | 536 | if (cause & IF_CS_BIT_EVENT) { |
a78a8325 | 537 | u16 status = if_cs_read16(priv->card, IF_CS_CARD_STATUS); |
78cf0747 HS |
538 | if_cs_write16(priv->card, IF_CS_HOST_INT_CAUSE, |
539 | IF_CS_BIT_EVENT); | |
a78a8325 | 540 | lbs_queue_event(priv, (status & IF_CS_CARD_STATUS_MASK) >> 8); |
7919b89c HS |
541 | } |
542 | ||
30735561 HS |
543 | /* Clear interrupt cause */ |
544 | if_cs_write16(card, IF_CS_CARD_INT_CAUSE, cause & IF_CS_BIT_MASK); | |
545 | ||
43d01c56 | 546 | lbs_deb_leave(LBS_DEB_CS); |
7919b89c HS |
547 | return IRQ_HANDLED; |
548 | } | |
549 | ||
550 | ||
551 | ||
552 | ||
27590d06 HS |
553 | /********************************************************************/ |
554 | /* Firmware */ | |
555 | /********************************************************************/ | |
556 | ||
557 | /* | |
558 | * Tries to program the helper firmware. | |
559 | * | |
560 | * Return 0 on success | |
561 | */ | |
562 | static int if_cs_prog_helper(struct if_cs_card *card) | |
563 | { | |
564 | int ret = 0; | |
565 | int sent = 0; | |
566 | u8 scratch; | |
567 | const struct firmware *fw; | |
568 | ||
569 | lbs_deb_enter(LBS_DEB_CS); | |
570 | ||
9d45368a MV |
571 | /* |
572 | * This is the only place where an unaligned register access happens on | |
573 | * the CF8305 card, therefore for the sake of speed of the driver, we do | |
574 | * the alignment correction here. | |
575 | */ | |
576 | if (card->align_regs) | |
577 | scratch = if_cs_read16(card, IF_CS_SCRATCH) >> 8; | |
578 | else | |
579 | scratch = if_cs_read8(card, IF_CS_SCRATCH); | |
27590d06 HS |
580 | |
581 | /* "If the value is 0x5a, the firmware is already | |
582 | * downloaded successfully" | |
583 | */ | |
53143256 | 584 | if (scratch == IF_CS_SCRATCH_HELPER_OK) |
27590d06 HS |
585 | goto done; |
586 | ||
587 | /* "If the value is != 00, it is invalid value of register */ | |
53143256 | 588 | if (scratch != IF_CS_SCRATCH_BOOT_OK) { |
27590d06 HS |
589 | ret = -ENODEV; |
590 | goto done; | |
591 | } | |
592 | ||
593 | /* TODO: make firmware file configurable */ | |
594 | ret = request_firmware(&fw, "libertas_cs_helper.fw", | |
dd2e5a15 | 595 | &card->p_dev->dev); |
27590d06 HS |
596 | if (ret) { |
597 | lbs_pr_err("can't load helper firmware\n"); | |
598 | ret = -ENODEV; | |
599 | goto done; | |
600 | } | |
4ecd41bd | 601 | lbs_deb_cs("helper size %td\n", fw->size); |
27590d06 HS |
602 | |
603 | /* "Set the 5 bytes of the helper image to 0" */ | |
604 | /* Not needed, this contains an ARM branch instruction */ | |
605 | ||
606 | for (;;) { | |
607 | /* "the number of bytes to send is 256" */ | |
608 | int count = 256; | |
609 | int remain = fw->size - sent; | |
610 | ||
611 | if (remain < count) | |
612 | count = remain; | |
27590d06 HS |
613 | |
614 | /* "write the number of bytes to be sent to the I/O Command | |
615 | * write length register" */ | |
a78a8325 | 616 | if_cs_write16(card, IF_CS_CMD_LEN, count); |
27590d06 HS |
617 | |
618 | /* "write this to I/O Command port register as 16 bit writes */ | |
619 | if (count) | |
a78a8325 | 620 | if_cs_write16_rep(card, IF_CS_CMD, |
27590d06 HS |
621 | &fw->data[sent], |
622 | count >> 1); | |
623 | ||
624 | /* "Assert the download over interrupt command in the Host | |
625 | * status register" */ | |
78cf0747 | 626 | if_cs_write8(card, IF_CS_HOST_STATUS, IF_CS_BIT_COMMAND); |
27590d06 HS |
627 | |
628 | /* "Assert the download over interrupt command in the Card | |
629 | * interrupt case register" */ | |
78cf0747 | 630 | if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_COMMAND); |
27590d06 HS |
631 | |
632 | /* "The host polls the Card Status register ... for 50 ms before | |
633 | declaring a failure */ | |
78cf0747 HS |
634 | ret = if_cs_poll_while_fw_download(card, IF_CS_CARD_STATUS, |
635 | IF_CS_BIT_COMMAND); | |
27590d06 HS |
636 | if (ret < 0) { |
637 | lbs_pr_err("can't download helper at 0x%x, ret %d\n", | |
638 | sent, ret); | |
9a52028e | 639 | goto err_release; |
27590d06 HS |
640 | } |
641 | ||
642 | if (count == 0) | |
643 | break; | |
644 | ||
645 | sent += count; | |
646 | } | |
647 | ||
9a52028e | 648 | err_release: |
27590d06 | 649 | release_firmware(fw); |
27590d06 HS |
650 | done: |
651 | lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret); | |
652 | return ret; | |
653 | } | |
654 | ||
655 | ||
656 | static int if_cs_prog_real(struct if_cs_card *card) | |
657 | { | |
658 | const struct firmware *fw; | |
659 | int ret = 0; | |
660 | int retry = 0; | |
661 | int len = 0; | |
662 | int sent; | |
663 | ||
664 | lbs_deb_enter(LBS_DEB_CS); | |
665 | ||
666 | /* TODO: make firmware file configurable */ | |
667 | ret = request_firmware(&fw, "libertas_cs.fw", | |
dd2e5a15 | 668 | &card->p_dev->dev); |
27590d06 HS |
669 | if (ret) { |
670 | lbs_pr_err("can't load firmware\n"); | |
671 | ret = -ENODEV; | |
672 | goto done; | |
673 | } | |
4ecd41bd | 674 | lbs_deb_cs("fw size %td\n", fw->size); |
27590d06 | 675 | |
a78a8325 HS |
676 | ret = if_cs_poll_while_fw_download(card, IF_CS_SQ_READ_LOW, |
677 | IF_CS_SQ_HELPER_OK); | |
27590d06 | 678 | if (ret < 0) { |
27590d06 | 679 | lbs_pr_err("helper firmware doesn't answer\n"); |
27590d06 HS |
680 | goto err_release; |
681 | } | |
682 | ||
683 | for (sent = 0; sent < fw->size; sent += len) { | |
a78a8325 | 684 | len = if_cs_read16(card, IF_CS_SQ_READ_LOW); |
27590d06 HS |
685 | if (len & 1) { |
686 | retry++; | |
687 | lbs_pr_info("odd, need to retry this firmware block\n"); | |
688 | } else { | |
689 | retry = 0; | |
690 | } | |
691 | ||
692 | if (retry > 20) { | |
693 | lbs_pr_err("could not download firmware\n"); | |
694 | ret = -ENODEV; | |
695 | goto err_release; | |
696 | } | |
697 | if (retry) { | |
698 | sent -= len; | |
699 | } | |
700 | ||
701 | ||
a78a8325 | 702 | if_cs_write16(card, IF_CS_CMD_LEN, len); |
27590d06 | 703 | |
a78a8325 | 704 | if_cs_write16_rep(card, IF_CS_CMD, |
27590d06 HS |
705 | &fw->data[sent], |
706 | (len+1) >> 1); | |
78cf0747 HS |
707 | if_cs_write8(card, IF_CS_HOST_STATUS, IF_CS_BIT_COMMAND); |
708 | if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_COMMAND); | |
27590d06 | 709 | |
78cf0747 HS |
710 | ret = if_cs_poll_while_fw_download(card, IF_CS_CARD_STATUS, |
711 | IF_CS_BIT_COMMAND); | |
27590d06 HS |
712 | if (ret < 0) { |
713 | lbs_pr_err("can't download firmware at 0x%x\n", sent); | |
714 | goto err_release; | |
715 | } | |
716 | } | |
717 | ||
718 | ret = if_cs_poll_while_fw_download(card, IF_CS_SCRATCH, 0x5a); | |
9a52028e | 719 | if (ret < 0) |
27590d06 | 720 | lbs_pr_err("firmware download failed\n"); |
27590d06 HS |
721 | |
722 | err_release: | |
723 | release_firmware(fw); | |
724 | ||
725 | done: | |
726 | lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret); | |
727 | return ret; | |
728 | } | |
729 | ||
730 | ||
731 | ||
732 | /********************************************************************/ | |
733 | /* Callback functions for libertas.ko */ | |
734 | /********************************************************************/ | |
735 | ||
27590d06 | 736 | /* Send commands or data packets to the card */ |
69f9032d HS |
737 | static int if_cs_host_to_card(struct lbs_private *priv, |
738 | u8 type, | |
739 | u8 *buf, | |
740 | u16 nb) | |
27590d06 HS |
741 | { |
742 | int ret = -1; | |
743 | ||
744 | lbs_deb_enter_args(LBS_DEB_CS, "type %d, bytes %d", type, nb); | |
745 | ||
746 | switch (type) { | |
747 | case MVMS_DAT: | |
6f05cbe5 | 748 | priv->dnld_sent = DNLD_DATA_SENT; |
27590d06 HS |
749 | if_cs_send_data(priv, buf, nb); |
750 | ret = 0; | |
751 | break; | |
752 | case MVMS_CMD: | |
6f05cbe5 | 753 | priv->dnld_sent = DNLD_CMD_SENT; |
27590d06 HS |
754 | ret = if_cs_send_cmd(priv, buf, nb); |
755 | break; | |
756 | default: | |
c94c93da | 757 | lbs_pr_err("%s: unsupported type %d\n", __func__, type); |
27590d06 HS |
758 | } |
759 | ||
760 | lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret); | |
761 | return ret; | |
762 | } | |
763 | ||
764 | ||
27590d06 HS |
765 | /********************************************************************/ |
766 | /* Card Services */ | |
767 | /********************************************************************/ | |
768 | ||
769 | /* | |
770 | * After a card is removed, if_cs_release() will unregister the | |
771 | * device, and release the PCMCIA configuration. If the device is | |
772 | * still open, this will be postponed until it is closed. | |
773 | */ | |
774 | static void if_cs_release(struct pcmcia_device *p_dev) | |
775 | { | |
776 | struct if_cs_card *card = p_dev->priv; | |
777 | ||
778 | lbs_deb_enter(LBS_DEB_CS); | |
779 | ||
27590d06 | 780 | free_irq(p_dev->irq.AssignedIRQ, card); |
fdfb92ea | 781 | pcmcia_disable_device(p_dev); |
27590d06 HS |
782 | if (card->iobase) |
783 | ioport_unmap(card->iobase); | |
784 | ||
785 | lbs_deb_leave(LBS_DEB_CS); | |
786 | } | |
787 | ||
788 | ||
789 | /* | |
790 | * This creates an "instance" of the driver, allocating local data | |
791 | * structures for one device. The device is registered with Card | |
792 | * Services. | |
793 | * | |
794 | * The dev_link structure is initialized, but we don't actually | |
795 | * configure the card at this point -- we wait until we receive a card | |
796 | * insertion event. | |
797 | */ | |
aaa8cfda DB |
798 | |
799 | static int if_cs_ioprobe(struct pcmcia_device *p_dev, | |
800 | cistpl_cftable_entry_t *cfg, | |
801 | cistpl_cftable_entry_t *dflt, | |
802 | unsigned int vcc, | |
803 | void *priv_data) | |
804 | { | |
805 | p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; | |
806 | p_dev->io.BasePort1 = cfg->io.win[0].base; | |
807 | p_dev->io.NumPorts1 = cfg->io.win[0].len; | |
808 | ||
809 | /* Do we need to allocate an interrupt? */ | |
810 | if (cfg->irq.IRQInfo1) | |
811 | p_dev->conf.Attributes |= CONF_ENABLE_IRQ; | |
812 | ||
813 | /* IO window settings */ | |
814 | if (cfg->io.nwin != 1) { | |
815 | lbs_pr_err("wrong CIS (check number of IO windows)\n"); | |
816 | return -ENODEV; | |
817 | } | |
818 | ||
819 | /* This reserves IO space but doesn't actually enable it */ | |
820 | return pcmcia_request_io(p_dev, &p_dev->io); | |
821 | } | |
822 | ||
27590d06 HS |
823 | static int if_cs_probe(struct pcmcia_device *p_dev) |
824 | { | |
825 | int ret = -ENOMEM; | |
dc7d243d | 826 | unsigned int prod_id; |
69f9032d | 827 | struct lbs_private *priv; |
27590d06 | 828 | struct if_cs_card *card; |
27590d06 HS |
829 | |
830 | lbs_deb_enter(LBS_DEB_CS); | |
831 | ||
832 | card = kzalloc(sizeof(struct if_cs_card), GFP_KERNEL); | |
833 | if (!card) { | |
834 | lbs_pr_err("error in kzalloc\n"); | |
835 | goto out; | |
836 | } | |
837 | card->p_dev = p_dev; | |
838 | p_dev->priv = card; | |
839 | ||
840 | p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; | |
841 | p_dev->irq.Handler = NULL; | |
27590d06 HS |
842 | |
843 | p_dev->conf.Attributes = 0; | |
844 | p_dev->conf.IntType = INT_MEMORY_AND_IO; | |
845 | ||
aaa8cfda DB |
846 | if (pcmcia_loop_config(p_dev, if_cs_ioprobe, NULL)) { |
847 | lbs_pr_err("error in pcmcia_loop_config\n"); | |
27590d06 HS |
848 | goto out1; |
849 | } | |
27590d06 | 850 | |
27590d06 HS |
851 | |
852 | /* | |
853 | * Allocate an interrupt line. Note that this does not assign | |
854 | * a handler to the interrupt, unless the 'Handler' member of | |
855 | * the irq structure is initialized. | |
856 | */ | |
857 | if (p_dev->conf.Attributes & CONF_ENABLE_IRQ) { | |
858 | ret = pcmcia_request_irq(p_dev, &p_dev->irq); | |
859 | if (ret) { | |
860 | lbs_pr_err("error in pcmcia_request_irq\n"); | |
861 | goto out1; | |
862 | } | |
863 | } | |
864 | ||
865 | /* Initialize io access */ | |
866 | card->iobase = ioport_map(p_dev->io.BasePort1, p_dev->io.NumPorts1); | |
867 | if (!card->iobase) { | |
868 | lbs_pr_err("error in ioport_map\n"); | |
869 | ret = -EIO; | |
870 | goto out1; | |
871 | } | |
872 | ||
873 | /* | |
874 | * This actually configures the PCMCIA socket -- setting up | |
875 | * the I/O windows and the interrupt mapping, and putting the | |
876 | * card and host interface into "Memory and IO" mode. | |
877 | */ | |
878 | ret = pcmcia_request_configuration(p_dev, &p_dev->conf); | |
879 | if (ret) { | |
880 | lbs_pr_err("error in pcmcia_request_configuration\n"); | |
881 | goto out2; | |
882 | } | |
883 | ||
884 | /* Finally, report what we've done */ | |
885 | lbs_deb_cs("irq %d, io 0x%04x-0x%04x\n", | |
886 | p_dev->irq.AssignedIRQ, p_dev->io.BasePort1, | |
887 | p_dev->io.BasePort1 + p_dev->io.NumPorts1 - 1); | |
888 | ||
9d45368a MV |
889 | /* |
890 | * Most of the libertas cards can do unaligned register access, but some | |
891 | * weird ones can not. That's especially true for the CF8305 card. | |
892 | */ | |
893 | card->align_regs = 0; | |
894 | ||
4c55523e | 895 | /* Check if we have a current silicon */ |
dc7d243d | 896 | prod_id = if_cs_read8(card, IF_CS_PRODUCT_ID); |
9d45368a MV |
897 | if (if_cs_hw_is_cf8305(p_dev)) { |
898 | card->align_regs = 1; | |
899 | if (prod_id < IF_CS_CF8305_B1_REV) { | |
900 | lbs_pr_err("old chips like 8305 rev B3 " | |
901 | "aren't supported\n"); | |
902 | ret = -ENODEV; | |
903 | goto out2; | |
904 | } | |
905 | } | |
906 | ||
dc7d243d MV |
907 | if (if_cs_hw_is_cf8381(p_dev) && prod_id < IF_CS_CF8381_B3_REV) { |
908 | lbs_pr_err("old chips like 8381 rev B3 aren't supported\n"); | |
909 | ret = -ENODEV; | |
910 | goto out2; | |
911 | } | |
912 | ||
913 | if (if_cs_hw_is_cf8385(p_dev) && prod_id < IF_CS_CF8385_B1_REV) { | |
4c55523e HS |
914 | lbs_pr_err("old chips like 8385 rev B1 aren't supported\n"); |
915 | ret = -ENODEV; | |
916 | goto out2; | |
917 | } | |
27590d06 HS |
918 | |
919 | /* Load the firmware early, before calling into libertas.ko */ | |
920 | ret = if_cs_prog_helper(card); | |
9d45368a | 921 | if (ret == 0 && !if_cs_hw_is_cf8305(p_dev)) |
27590d06 HS |
922 | ret = if_cs_prog_real(card); |
923 | if (ret) | |
924 | goto out2; | |
925 | ||
926 | /* Make this card known to the libertas driver */ | |
10078321 | 927 | priv = lbs_add_card(card, &p_dev->dev); |
27590d06 HS |
928 | if (!priv) { |
929 | ret = -ENOMEM; | |
930 | goto out2; | |
931 | } | |
932 | ||
7919b89c | 933 | /* Finish setting up fields in lbs_private */ |
954ee164 | 934 | card->priv = priv; |
27590d06 | 935 | priv->card = card; |
7919b89c | 936 | priv->hw_host_to_card = if_cs_host_to_card; |
49125454 AK |
937 | priv->enter_deep_sleep = NULL; |
938 | priv->exit_deep_sleep = NULL; | |
939 | priv->reset_deep_sleep_wakeup = NULL; | |
aa21c004 | 940 | priv->fw_ready = 1; |
954ee164 | 941 | |
27590d06 HS |
942 | /* Now actually get the IRQ */ |
943 | ret = request_irq(p_dev->irq.AssignedIRQ, if_cs_interrupt, | |
944 | IRQF_SHARED, DRV_NAME, card); | |
945 | if (ret) { | |
946 | lbs_pr_err("error in request_irq\n"); | |
947 | goto out3; | |
948 | } | |
949 | ||
4ef31702 HS |
950 | /* Clear any interrupt cause that happend while sending |
951 | * firmware/initializing card */ | |
78cf0747 | 952 | if_cs_write16(card, IF_CS_CARD_INT_CAUSE, IF_CS_BIT_MASK); |
28de0b36 RM |
953 | if_cs_enable_ints(card); |
954 | ||
27590d06 | 955 | /* And finally bring the card up */ |
10078321 | 956 | if (lbs_start_card(priv) != 0) { |
27590d06 HS |
957 | lbs_pr_err("could not activate card\n"); |
958 | goto out3; | |
959 | } | |
960 | ||
961 | ret = 0; | |
962 | goto out; | |
963 | ||
964 | out3: | |
10078321 | 965 | lbs_remove_card(priv); |
27590d06 HS |
966 | out2: |
967 | ioport_unmap(card->iobase); | |
968 | out1: | |
969 | pcmcia_disable_device(p_dev); | |
970 | out: | |
971 | lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret); | |
972 | return ret; | |
973 | } | |
974 | ||
975 | ||
976 | /* | |
977 | * This deletes a driver "instance". The device is de-registered with | |
978 | * Card Services. If it has been released, all local data structures | |
979 | * are freed. Otherwise, the structures will be freed when the device | |
980 | * is released. | |
981 | */ | |
982 | static void if_cs_detach(struct pcmcia_device *p_dev) | |
983 | { | |
984 | struct if_cs_card *card = p_dev->priv; | |
985 | ||
986 | lbs_deb_enter(LBS_DEB_CS); | |
987 | ||
10078321 HS |
988 | lbs_stop_card(card->priv); |
989 | lbs_remove_card(card->priv); | |
28de0b36 | 990 | if_cs_disable_ints(card); |
27590d06 HS |
991 | if_cs_release(p_dev); |
992 | kfree(card); | |
993 | ||
994 | lbs_deb_leave(LBS_DEB_CS); | |
995 | } | |
996 | ||
997 | ||
998 | ||
999 | /********************************************************************/ | |
1000 | /* Module initialization */ | |
1001 | /********************************************************************/ | |
1002 | ||
1003 | static struct pcmcia_device_id if_cs_ids[] = { | |
9d45368a | 1004 | PCMCIA_DEVICE_MANF_CARD(CF8305_MANFID, CF8305_CARDID), |
dc7d243d MV |
1005 | PCMCIA_DEVICE_MANF_CARD(CF8381_MANFID, CF8381_CARDID), |
1006 | PCMCIA_DEVICE_MANF_CARD(CF8385_MANFID, CF8385_CARDID), | |
27590d06 HS |
1007 | PCMCIA_DEVICE_NULL, |
1008 | }; | |
1009 | MODULE_DEVICE_TABLE(pcmcia, if_cs_ids); | |
1010 | ||
1011 | ||
10078321 | 1012 | static struct pcmcia_driver lbs_driver = { |
27590d06 HS |
1013 | .owner = THIS_MODULE, |
1014 | .drv = { | |
1015 | .name = DRV_NAME, | |
1016 | }, | |
1017 | .probe = if_cs_probe, | |
1018 | .remove = if_cs_detach, | |
1019 | .id_table = if_cs_ids, | |
1020 | }; | |
1021 | ||
1022 | ||
1023 | static int __init if_cs_init(void) | |
1024 | { | |
1025 | int ret; | |
1026 | ||
1027 | lbs_deb_enter(LBS_DEB_CS); | |
10078321 | 1028 | ret = pcmcia_register_driver(&lbs_driver); |
27590d06 HS |
1029 | lbs_deb_leave(LBS_DEB_CS); |
1030 | return ret; | |
1031 | } | |
1032 | ||
1033 | ||
1034 | static void __exit if_cs_exit(void) | |
1035 | { | |
1036 | lbs_deb_enter(LBS_DEB_CS); | |
10078321 | 1037 | pcmcia_unregister_driver(&lbs_driver); |
27590d06 HS |
1038 | lbs_deb_leave(LBS_DEB_CS); |
1039 | } | |
1040 | ||
1041 | ||
1042 | module_init(if_cs_init); | |
1043 | module_exit(if_cs_exit); |