Version:  2.0.40 2.2.26 2.4.37 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18

Linux/drivers/staging/gdm72xx/gdm_sdio.c

  1 /*
  2  * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
  3  *
  4  * This software is licensed under the terms of the GNU General Public
  5  * License version 2, as published by the Free Software Foundation, and
  6  * may be copied, distributed, and modified under those terms.
  7  *
  8  * This program is distributed in the hope that it will be useful,
  9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 11  * GNU General Public License for more details.
 12  */
 13 
 14 #include <linux/module.h>
 15 #include <linux/init.h>
 16 #include <linux/kernel.h>
 17 
 18 #include <linux/mmc/core.h>
 19 #include <linux/mmc/card.h>
 20 #include <linux/mmc/sdio_func.h>
 21 #include <linux/mmc/sdio_ids.h>
 22 
 23 #include "gdm_sdio.h"
 24 #include "gdm_wimax.h"
 25 #include "sdio_boot.h"
 26 #include "hci.h"
 27 
 28 #define TYPE_A_HEADER_SIZE      4
 29 #define TYPE_A_LOOKAHEAD_SIZE   16
 30 
 31 #define MAX_NR_RX_BUF   4
 32 
 33 #define SDU_TX_BUF_SIZE 2048
 34 #define TX_BUF_SIZE     2048
 35 #define TX_CHUNK_SIZE   (2048 - TYPE_A_HEADER_SIZE)
 36 #define RX_BUF_SIZE     (25*1024)
 37 
 38 #define TX_HZ           2000
 39 #define TX_INTERVAL     (1000000/TX_HZ)
 40 
 41 static struct sdio_tx *alloc_tx_struct(struct tx_cxt *tx)
 42 {
 43         struct sdio_tx *t = kzalloc(sizeof(*t), GFP_ATOMIC);
 44 
 45         if (!t)
 46                 return NULL;
 47 
 48         t->buf = kmalloc(TX_BUF_SIZE, GFP_ATOMIC);
 49         if (!t->buf) {
 50                 kfree(t);
 51                 return NULL;
 52         }
 53 
 54         t->tx_cxt = tx;
 55 
 56         return t;
 57 }
 58 
 59 static void free_tx_struct(struct sdio_tx *t)
 60 {
 61         if (t) {
 62                 kfree(t->buf);
 63                 kfree(t);
 64         }
 65 }
 66 
 67 static struct sdio_rx *alloc_rx_struct(struct rx_cxt *rx)
 68 {
 69         struct sdio_rx *r = kzalloc(sizeof(*r), GFP_ATOMIC);
 70 
 71         if (r)
 72                 r->rx_cxt = rx;
 73 
 74         return r;
 75 }
 76 
 77 static void free_rx_struct(struct sdio_rx *r)
 78 {
 79         kfree(r);
 80 }
 81 
 82 /* Before this function is called, spin lock should be locked. */
 83 static struct sdio_tx *get_tx_struct(struct tx_cxt *tx, int *no_spc)
 84 {
 85         struct sdio_tx *t;
 86 
 87         if (list_empty(&tx->free_list))
 88                 return NULL;
 89 
 90         t = list_entry(tx->free_list.prev, struct sdio_tx, list);
 91         list_del(&t->list);
 92 
 93         *no_spc = list_empty(&tx->free_list) ? 1 : 0;
 94 
 95         return t;
 96 }
 97 
 98 /* Before this function is called, spin lock should be locked. */
 99 static void put_tx_struct(struct tx_cxt *tx, struct sdio_tx *t)
100 {
101         list_add_tail(&t->list, &tx->free_list);
102 }
103 
104 /* Before this function is called, spin lock should be locked. */
105 static struct sdio_rx *get_rx_struct(struct rx_cxt *rx)
106 {
107         struct sdio_rx *r;
108 
109         if (list_empty(&rx->free_list))
110                 return NULL;
111 
112         r = list_entry(rx->free_list.prev, struct sdio_rx, list);
113         list_del(&r->list);
114 
115         return r;
116 }
117 
118 /* Before this function is called, spin lock should be locked. */
119 static void put_rx_struct(struct rx_cxt *rx, struct sdio_rx *r)
120 {
121         list_add_tail(&r->list, &rx->free_list);
122 }
123 
124 static void release_sdio(struct sdiowm_dev *sdev)
125 {
126         struct tx_cxt   *tx = &sdev->tx;
127         struct rx_cxt   *rx = &sdev->rx;
128         struct sdio_tx  *t, *t_next;
129         struct sdio_rx  *r, *r_next;
130 
131         kfree(tx->sdu_buf);
132 
133         list_for_each_entry_safe(t, t_next, &tx->free_list, list) {
134                 list_del(&t->list);
135                 free_tx_struct(t);
136         }
137 
138         list_for_each_entry_safe(t, t_next, &tx->sdu_list, list) {
139                 list_del(&t->list);
140                 free_tx_struct(t);
141         }
142 
143         list_for_each_entry_safe(t, t_next, &tx->hci_list, list) {
144                 list_del(&t->list);
145                 free_tx_struct(t);
146         }
147 
148         kfree(rx->rx_buf);
149 
150         list_for_each_entry_safe(r, r_next, &rx->free_list, list) {
151                 list_del(&r->list);
152                 free_rx_struct(r);
153         }
154 
155         list_for_each_entry_safe(r, r_next, &rx->req_list, list) {
156                 list_del(&r->list);
157                 free_rx_struct(r);
158         }
159 }
160 
161 static int init_sdio(struct sdiowm_dev *sdev)
162 {
163         int ret = 0, i;
164         struct tx_cxt *tx = &sdev->tx;
165         struct rx_cxt *rx = &sdev->rx;
166         struct sdio_tx *t;
167         struct sdio_rx *r;
168 
169         INIT_LIST_HEAD(&tx->free_list);
170         INIT_LIST_HEAD(&tx->sdu_list);
171         INIT_LIST_HEAD(&tx->hci_list);
172 
173         spin_lock_init(&tx->lock);
174 
175         tx->sdu_buf = kmalloc(SDU_TX_BUF_SIZE, GFP_KERNEL);
176         if (tx->sdu_buf == NULL)
177                 goto fail;
178 
179         for (i = 0; i < MAX_NR_SDU_BUF; i++) {
180                 t = alloc_tx_struct(tx);
181                 if (t == NULL) {
182                         ret = -ENOMEM;
183                         goto fail;
184                 }
185                 list_add(&t->list, &tx->free_list);
186         }
187 
188         INIT_LIST_HEAD(&rx->free_list);
189         INIT_LIST_HEAD(&rx->req_list);
190 
191         spin_lock_init(&rx->lock);
192 
193         for (i = 0; i < MAX_NR_RX_BUF; i++) {
194                 r = alloc_rx_struct(rx);
195                 if (r == NULL) {
196                         ret = -ENOMEM;
197                         goto fail;
198                 }
199                 list_add(&r->list, &rx->free_list);
200         }
201 
202         rx->rx_buf = kmalloc(RX_BUF_SIZE, GFP_KERNEL);
203         if (rx->rx_buf == NULL)
204                 goto fail;
205 
206         return 0;
207 
208 fail:
209         release_sdio(sdev);
210         return ret;
211 }
212 
213 static void send_sdio_pkt(struct sdio_func *func, u8 *data, int len)
214 {
215         int n, blocks, ret, remain;
216 
217         sdio_claim_host(func);
218 
219         blocks = len / func->cur_blksize;
220         n = blocks * func->cur_blksize;
221         if (blocks) {
222                 ret = sdio_memcpy_toio(func, 0, data, n);
223                 if (ret < 0) {
224                         if (ret != -ENOMEDIUM)
225                                 dev_err(&func->dev,
226                                         "gdmwms: %s error: ret = %d\n",
227                                         __func__, ret);
228                         goto end_io;
229                 }
230         }
231 
232         remain = len - n;
233         remain = (remain + 3) & ~3;
234 
235         if (remain) {
236                 ret = sdio_memcpy_toio(func, 0, data + n, remain);
237                 if (ret < 0) {
238                         if (ret != -ENOMEDIUM)
239                                 dev_err(&func->dev,
240                                         "gdmwms: %s error: ret = %d\n",
241                                         __func__, ret);
242                         goto end_io;
243                 }
244         }
245 
246 end_io:
247         sdio_release_host(func);
248 }
249 
250 static void send_sdu(struct sdio_func *func, struct tx_cxt *tx)
251 {
252         struct list_head *l, *next;
253         struct hci_s *hci;
254         struct sdio_tx *t;
255         int pos, len, i, estlen, aggr_num = 0, aggr_len;
256         u8 *buf;
257         unsigned long flags;
258 
259         spin_lock_irqsave(&tx->lock, flags);
260 
261         pos = TYPE_A_HEADER_SIZE + HCI_HEADER_SIZE;
262         list_for_each_entry(t, &tx->sdu_list, list) {
263                 estlen = ((t->len + 3) & ~3) + 4;
264                 if ((pos + estlen) > SDU_TX_BUF_SIZE)
265                         break;
266 
267                 aggr_num++;
268                 memcpy(tx->sdu_buf + pos, t->buf, t->len);
269                 memset(tx->sdu_buf + pos + t->len, 0, estlen - t->len);
270                 pos += estlen;
271         }
272         aggr_len = pos;
273 
274         hci = (struct hci_s *)(tx->sdu_buf + TYPE_A_HEADER_SIZE);
275         hci->cmd_evt = cpu_to_be16(WIMAX_TX_SDU_AGGR);
276         hci->length = cpu_to_be16(aggr_len - TYPE_A_HEADER_SIZE -
277                                   HCI_HEADER_SIZE);
278 
279         spin_unlock_irqrestore(&tx->lock, flags);
280 
281         dev_dbg(&func->dev, "sdio_send: %*ph\n", aggr_len - TYPE_A_HEADER_SIZE,
282                 tx->sdu_buf + TYPE_A_HEADER_SIZE);
283 
284         for (pos = TYPE_A_HEADER_SIZE; pos < aggr_len; pos += TX_CHUNK_SIZE) {
285                 len = aggr_len - pos;
286                 len = len > TX_CHUNK_SIZE ? TX_CHUNK_SIZE : len;
287                 buf = tx->sdu_buf + pos - TYPE_A_HEADER_SIZE;
288 
289                 buf[0] = len & 0xff;
290                 buf[1] = (len >> 8) & 0xff;
291                 buf[2] = (len >> 16) & 0xff;
292                 buf[3] = (pos + len) >= aggr_len ? 0 : 1;
293                 send_sdio_pkt(func, buf, len + TYPE_A_HEADER_SIZE);
294         }
295 
296         spin_lock_irqsave(&tx->lock, flags);
297 
298         for (l = tx->sdu_list.next, i = 0; i < aggr_num; i++, l = next) {
299                 next = l->next;
300                 t = list_entry(l, struct sdio_tx, list);
301                 if (t->callback)
302                         t->callback(t->cb_data);
303 
304                 list_del(l);
305                 put_tx_struct(t->tx_cxt, t);
306         }
307 
308         do_gettimeofday(&tx->sdu_stamp);
309         spin_unlock_irqrestore(&tx->lock, flags);
310 }
311 
312 static void send_hci(struct sdio_func *func, struct tx_cxt *tx,
313                      struct sdio_tx *t)
314 {
315         unsigned long flags;
316 
317         dev_dbg(&func->dev, "sdio_send: %*ph\n", t->len - TYPE_A_HEADER_SIZE,
318                 t->buf + TYPE_A_HEADER_SIZE);
319 
320         send_sdio_pkt(func, t->buf, t->len);
321 
322         spin_lock_irqsave(&tx->lock, flags);
323         if (t->callback)
324                 t->callback(t->cb_data);
325         free_tx_struct(t);
326         spin_unlock_irqrestore(&tx->lock, flags);
327 }
328 
329 static void do_tx(struct work_struct *work)
330 {
331         struct sdiowm_dev *sdev = container_of(work, struct sdiowm_dev, ws);
332         struct sdio_func *func = sdev->func;
333         struct tx_cxt *tx = &sdev->tx;
334         struct sdio_tx *t = NULL;
335         struct timeval now, *before;
336         int is_sdu = 0;
337         long diff;
338         unsigned long flags;
339 
340         spin_lock_irqsave(&tx->lock, flags);
341         if (!tx->can_send) {
342                 spin_unlock_irqrestore(&tx->lock, flags);
343                 return;
344         }
345 
346         if (!list_empty(&tx->hci_list)) {
347                 t = list_entry(tx->hci_list.next, struct sdio_tx, list);
348                 list_del(&t->list);
349                 is_sdu = 0;
350         } else if (!tx->stop_sdu_tx && !list_empty(&tx->sdu_list)) {
351                 do_gettimeofday(&now);
352                 before = &tx->sdu_stamp;
353 
354                 diff = (now.tv_sec - before->tv_sec) * 1000000 +
355                         (now.tv_usec - before->tv_usec);
356                 if (diff >= 0 && diff < TX_INTERVAL) {
357                         schedule_work(&sdev->ws);
358                         spin_unlock_irqrestore(&tx->lock, flags);
359                         return;
360                 }
361                 is_sdu = 1;
362         }
363 
364         if (!is_sdu && t == NULL) {
365                 spin_unlock_irqrestore(&tx->lock, flags);
366                 return;
367         }
368 
369         tx->can_send = 0;
370 
371         spin_unlock_irqrestore(&tx->lock, flags);
372 
373         if (is_sdu)
374                 send_sdu(func, tx);
375         else
376                 send_hci(func, tx, t);
377 }
378 
379 static int gdm_sdio_send(void *priv_dev, void *data, int len,
380                          void (*cb)(void *data), void *cb_data)
381 {
382         struct sdiowm_dev *sdev = priv_dev;
383         struct tx_cxt *tx = &sdev->tx;
384         struct sdio_tx *t;
385         u8 *pkt = data;
386         int no_spc = 0;
387         u16 cmd_evt;
388         unsigned long flags;
389 
390         if (len > TX_BUF_SIZE - TYPE_A_HEADER_SIZE)
391                 return -EINVAL;
392 
393         spin_lock_irqsave(&tx->lock, flags);
394 
395         cmd_evt = (pkt[0] << 8) | pkt[1];
396         if (cmd_evt == WIMAX_TX_SDU) {
397                 t = get_tx_struct(tx, &no_spc);
398                 if (t == NULL) {
399                         /* This case must not happen. */
400                         spin_unlock_irqrestore(&tx->lock, flags);
401                         return -ENOSPC;
402                 }
403                 list_add_tail(&t->list, &tx->sdu_list);
404 
405                 memcpy(t->buf, data, len);
406 
407                 t->len = len;
408                 t->callback = cb;
409                 t->cb_data = cb_data;
410         } else {
411                 t = alloc_tx_struct(tx);
412                 if (t == NULL) {
413                         spin_unlock_irqrestore(&tx->lock, flags);
414                         return -ENOMEM;
415                 }
416                 list_add_tail(&t->list, &tx->hci_list);
417 
418                 t->buf[0] = len & 0xff;
419                 t->buf[1] = (len >> 8) & 0xff;
420                 t->buf[2] = (len >> 16) & 0xff;
421                 t->buf[3] = 2;
422                 memcpy(t->buf + TYPE_A_HEADER_SIZE, data, len);
423 
424                 t->len = len + TYPE_A_HEADER_SIZE;
425                 t->callback = cb;
426                 t->cb_data = cb_data;
427         }
428 
429         if (tx->can_send)
430                 schedule_work(&sdev->ws);
431 
432         spin_unlock_irqrestore(&tx->lock, flags);
433 
434         if (no_spc)
435                 return -ENOSPC;
436 
437         return 0;
438 }
439 
440 /* Handle the HCI, WIMAX_SDU_TX_FLOW. */
441 static int control_sdu_tx_flow(struct sdiowm_dev *sdev, u8 *hci_data, int len)
442 {
443         struct tx_cxt *tx = &sdev->tx;
444         u16 cmd_evt;
445         unsigned long flags;
446 
447         spin_lock_irqsave(&tx->lock, flags);
448 
449         cmd_evt = (hci_data[0] << 8) | (hci_data[1]);
450         if (cmd_evt != WIMAX_SDU_TX_FLOW)
451                 goto out;
452 
453         if (hci_data[4] == 0) {
454                 dev_dbg(&sdev->func->dev, "WIMAX ==> STOP SDU TX\n");
455                 tx->stop_sdu_tx = 1;
456         } else if (hci_data[4] == 1) {
457                 dev_dbg(&sdev->func->dev, "WIMAX ==> START SDU TX\n");
458                 tx->stop_sdu_tx = 0;
459                 if (tx->can_send)
460                         schedule_work(&sdev->ws);
461                 /* If free buffer for sdu tx doesn't exist, then tx queue
462                  * should not be woken. For this reason, don't pass the command,
463                  * START_SDU_TX.
464                  */
465                 if (list_empty(&tx->free_list))
466                         len = 0;
467         }
468 
469 out:
470         spin_unlock_irqrestore(&tx->lock, flags);
471         return len;
472 }
473 
474 static void gdm_sdio_irq(struct sdio_func *func)
475 {
476         struct phy_dev *phy_dev = sdio_get_drvdata(func);
477         struct sdiowm_dev *sdev = phy_dev->priv_dev;
478         struct tx_cxt *tx = &sdev->tx;
479         struct rx_cxt *rx = &sdev->rx;
480         struct sdio_rx *r;
481         unsigned long flags;
482         u8 val, hdr[TYPE_A_LOOKAHEAD_SIZE], *buf;
483         u32 len, blocks, n;
484         int ret, remain;
485 
486         /* Check interrupt */
487         val = sdio_readb(func, 0x13, &ret);
488         if (val & 0x01)
489                 sdio_writeb(func, 0x01, 0x13, &ret);    /* clear interrupt */
490         else
491                 return;
492 
493         ret = sdio_memcpy_fromio(func, hdr, 0x0, TYPE_A_LOOKAHEAD_SIZE);
494         if (ret) {
495                 dev_err(&func->dev,
496                         "Cannot read from function %d\n", func->num);
497                 goto done;
498         }
499 
500         len = (hdr[2] << 16) | (hdr[1] << 8) | hdr[0];
501         if (len > (RX_BUF_SIZE - TYPE_A_HEADER_SIZE)) {
502                 dev_err(&func->dev, "Too big Type-A size: %d\n", len);
503                 goto done;
504         }
505 
506         if (hdr[3] == 1) {      /* Ack */
507                 u32 *ack_seq = (u32 *)&hdr[4];
508 
509                 spin_lock_irqsave(&tx->lock, flags);
510                 tx->can_send = 1;
511 
512                 if (!list_empty(&tx->sdu_list) || !list_empty(&tx->hci_list))
513                         schedule_work(&sdev->ws);
514                 spin_unlock_irqrestore(&tx->lock, flags);
515                 dev_dbg(&func->dev, "Ack... %0x\n", ntohl(*ack_seq));
516                 goto done;
517         }
518 
519         memcpy(rx->rx_buf, hdr + TYPE_A_HEADER_SIZE,
520                TYPE_A_LOOKAHEAD_SIZE - TYPE_A_HEADER_SIZE);
521 
522         buf = rx->rx_buf + TYPE_A_LOOKAHEAD_SIZE - TYPE_A_HEADER_SIZE;
523         remain = len - TYPE_A_LOOKAHEAD_SIZE + TYPE_A_HEADER_SIZE;
524         if (remain <= 0)
525                 goto end_io;
526 
527         blocks = remain / func->cur_blksize;
528 
529         if (blocks) {
530                 n = blocks * func->cur_blksize;
531                 ret = sdio_memcpy_fromio(func, buf, 0x0, n);
532                 if (ret) {
533                         dev_err(&func->dev,
534                                 "Cannot read from function %d\n", func->num);
535                         goto done;
536                 }
537                 buf += n;
538                 remain -= n;
539         }
540 
541         if (remain) {
542                 ret = sdio_memcpy_fromio(func, buf, 0x0, remain);
543                 if (ret) {
544                         dev_err(&func->dev,
545                                 "Cannot read from function %d\n", func->num);
546                         goto done;
547                 }
548         }
549 
550 end_io:
551         dev_dbg(&func->dev, "sdio_receive: %*ph\n", len, rx->rx_buf);
552 
553         len = control_sdu_tx_flow(sdev, rx->rx_buf, len);
554 
555         spin_lock_irqsave(&rx->lock, flags);
556 
557         if (!list_empty(&rx->req_list)) {
558                 r = list_entry(rx->req_list.next, struct sdio_rx, list);
559                 spin_unlock_irqrestore(&rx->lock, flags);
560                 if (r->callback)
561                         r->callback(r->cb_data, rx->rx_buf, len);
562                 spin_lock_irqsave(&rx->lock, flags);
563                 list_del(&r->list);
564                 put_rx_struct(rx, r);
565         }
566 
567         spin_unlock_irqrestore(&rx->lock, flags);
568 
569 done:
570         sdio_writeb(func, 0x00, 0x10, &ret);    /* PCRRT */
571         if (!phy_dev->netdev)
572                 register_wimax_device(phy_dev, &func->dev);
573 }
574 
575 static int gdm_sdio_receive(void *priv_dev,
576                             void (*cb)(void *cb_data, void *data, int len),
577                             void *cb_data)
578 {
579         struct sdiowm_dev *sdev = priv_dev;
580         struct rx_cxt *rx = &sdev->rx;
581         struct sdio_rx *r;
582         unsigned long flags;
583 
584         spin_lock_irqsave(&rx->lock, flags);
585         r = get_rx_struct(rx);
586         if (r == NULL) {
587                 spin_unlock_irqrestore(&rx->lock, flags);
588                 return -ENOMEM;
589         }
590 
591         r->callback = cb;
592         r->cb_data = cb_data;
593 
594         list_add_tail(&r->list, &rx->req_list);
595         spin_unlock_irqrestore(&rx->lock, flags);
596 
597         return 0;
598 }
599 
600 static int sdio_wimax_probe(struct sdio_func *func,
601                             const struct sdio_device_id *id)
602 {
603         int ret;
604         struct phy_dev *phy_dev = NULL;
605         struct sdiowm_dev *sdev = NULL;
606 
607         dev_info(&func->dev, "Found GDM SDIO VID = 0x%04x PID = 0x%04x...\n",
608                  func->vendor, func->device);
609         dev_info(&func->dev, "GCT WiMax driver version %s\n", DRIVER_VERSION);
610 
611         sdio_claim_host(func);
612         sdio_enable_func(func);
613         sdio_claim_irq(func, gdm_sdio_irq);
614 
615         ret = sdio_boot(func);
616         if (ret)
617                 return ret;
618 
619         phy_dev = kzalloc(sizeof(*phy_dev), GFP_KERNEL);
620         if (phy_dev == NULL) {
621                 ret = -ENOMEM;
622                 goto out;
623         }
624         sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
625         if (sdev == NULL) {
626                 ret = -ENOMEM;
627                 goto out;
628         }
629 
630         phy_dev->priv_dev = (void *)sdev;
631         phy_dev->send_func = gdm_sdio_send;
632         phy_dev->rcv_func = gdm_sdio_receive;
633 
634         ret = init_sdio(sdev);
635         if (ret < 0)
636                 goto out;
637 
638         sdev->func = func;
639 
640         sdio_writeb(func, 1, 0x14, &ret);       /* Enable interrupt */
641         sdio_release_host(func);
642 
643         INIT_WORK(&sdev->ws, do_tx);
644 
645         sdio_set_drvdata(func, phy_dev);
646 out:
647         if (ret) {
648                 kfree(phy_dev);
649                 kfree(sdev);
650         }
651 
652         return ret;
653 }
654 
655 static void sdio_wimax_remove(struct sdio_func *func)
656 {
657         struct phy_dev *phy_dev = sdio_get_drvdata(func);
658         struct sdiowm_dev *sdev = phy_dev->priv_dev;
659 
660         cancel_work_sync(&sdev->ws);
661         if (phy_dev->netdev)
662                 unregister_wimax_device(phy_dev);
663         sdio_claim_host(func);
664         sdio_release_irq(func);
665         sdio_disable_func(func);
666         sdio_release_host(func);
667         release_sdio(sdev);
668 
669         kfree(sdev);
670         kfree(phy_dev);
671 }
672 
673 static const struct sdio_device_id sdio_wimax_ids[] = {
674         { SDIO_DEVICE(0x0296, 0x5347) },
675         {0}
676 };
677 
678 MODULE_DEVICE_TABLE(sdio, sdio_wimax_ids);
679 
680 static struct sdio_driver sdio_wimax_driver = {
681         .probe          = sdio_wimax_probe,
682         .remove         = sdio_wimax_remove,
683         .name           = "sdio_wimax",
684         .id_table       = sdio_wimax_ids,
685 };
686 
687 static int __init sdio_gdm_wimax_init(void)
688 {
689         return sdio_register_driver(&sdio_wimax_driver);
690 }
691 
692 static void __exit sdio_gdm_wimax_exit(void)
693 {
694         sdio_unregister_driver(&sdio_wimax_driver);
695 }
696 
697 module_init(sdio_gdm_wimax_init);
698 module_exit(sdio_gdm_wimax_exit);
699 
700 MODULE_VERSION(DRIVER_VERSION);
701 MODULE_DESCRIPTION("GCT WiMax SDIO Device Driver");
702 MODULE_AUTHOR("Ethan Park");
703 MODULE_LICENSE("GPL");
704 

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