Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git
[linux-2.6] / drivers / char / mwave / mwavedd.c
1 /*
2 *
3 * mwavedd.c -- mwave device driver
4 *
5 *
6 * Written By: Mike Sullivan IBM Corporation
7 *
8 * Copyright (C) 1999 IBM Corporation
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18 * GNU General Public License for more details.
19 *
20 * NO WARRANTY
21 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
22 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
23 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
24 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
25 * solely responsible for determining the appropriateness of using and
26 * distributing the Program and assumes all risks associated with its
27 * exercise of rights under this Agreement, including but not limited to
28 * the risks and costs of program errors, damage to or loss of data,
29 * programs or equipment, and unavailability or interruption of operations.
30 *
31 * DISCLAIMER OF LIABILITY
32 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
33 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
35 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
36 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
37 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
38 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
39 *
40 * You should have received a copy of the GNU General Public License
41 * along with this program; if not, write to the Free Software
42 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
43 *
44 *
45 * 10/23/2000 - Alpha Release
46 *       First release to the public
47 */
48
49 #include <linux/module.h>
50 #include <linux/kernel.h>
51 #include <linux/fs.h>
52 #include <linux/init.h>
53 #include <linux/major.h>
54 #include <linux/miscdevice.h>
55 #include <linux/device.h>
56 #include <linux/serial.h>
57 #include <linux/sched.h>
58 #include <linux/spinlock.h>
59 #include <linux/delay.h>
60 #include "smapi.h"
61 #include "mwavedd.h"
62 #include "3780i.h"
63 #include "tp3780i.h"
64
65 MODULE_DESCRIPTION("3780i Advanced Communications Processor (Mwave) driver");
66 MODULE_AUTHOR("Mike Sullivan and Paul Schroeder");
67 MODULE_LICENSE("GPL");
68
69 /*
70 * These parameters support the setting of MWave resources. Note that no
71 * checks are made against other devices (ie. superio) for conflicts.
72 * We'll depend on users using the tpctl utility to do that for now
73 */
74 int mwave_debug = 0;
75 int mwave_3780i_irq = 0;
76 int mwave_3780i_io = 0;
77 int mwave_uart_irq = 0;
78 int mwave_uart_io = 0;
79 module_param(mwave_debug, int, 0);
80 module_param(mwave_3780i_irq, int, 0);
81 module_param(mwave_3780i_io, int, 0);
82 module_param(mwave_uart_irq, int, 0);
83 module_param(mwave_uart_io, int, 0);
84
85 static int mwave_open(struct inode *inode, struct file *file);
86 static int mwave_close(struct inode *inode, struct file *file);
87 static int mwave_ioctl(struct inode *inode, struct file *filp,
88                        unsigned int iocmd, unsigned long ioarg);
89
90 MWAVE_DEVICE_DATA mwave_s_mdd;
91
92 static int mwave_open(struct inode *inode, struct file *file)
93 {
94         unsigned int retval = 0;
95
96         PRINTK_3(TRACE_MWAVE,
97                 "mwavedd::mwave_open, entry inode %p file %p\n",
98                  inode, file);
99         PRINTK_2(TRACE_MWAVE,
100                 "mwavedd::mwave_open, exit return retval %x\n", retval);
101
102         return retval;
103 }
104
105 static int mwave_close(struct inode *inode, struct file *file)
106 {
107         unsigned int retval = 0;
108
109         PRINTK_3(TRACE_MWAVE,
110                 "mwavedd::mwave_close, entry inode %p file %p\n",
111                  inode,  file);
112
113         PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_close, exit retval %x\n",
114                 retval);
115
116         return retval;
117 }
118
119 static int mwave_ioctl(struct inode *inode, struct file *file,
120                        unsigned int iocmd, unsigned long ioarg)
121 {
122         unsigned int retval = 0;
123         pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd;
124         void __user *arg = (void __user *)ioarg;
125
126         PRINTK_5(TRACE_MWAVE,
127                 "mwavedd::mwave_ioctl, entry inode %p file %p cmd %x arg %x\n",
128                  inode,  file, iocmd, (int) ioarg);
129
130         switch (iocmd) {
131
132                 case IOCTL_MW_RESET:
133                         PRINTK_1(TRACE_MWAVE,
134                                 "mwavedd::mwave_ioctl, IOCTL_MW_RESET"
135                                 " calling tp3780I_ResetDSP\n");
136                         retval = tp3780I_ResetDSP(&pDrvData->rBDData);
137                         PRINTK_2(TRACE_MWAVE,
138                                 "mwavedd::mwave_ioctl, IOCTL_MW_RESET"
139                                 " retval %x from tp3780I_ResetDSP\n",
140                                 retval);
141                         break;
142         
143                 case IOCTL_MW_RUN:
144                         PRINTK_1(TRACE_MWAVE,
145                                 "mwavedd::mwave_ioctl, IOCTL_MW_RUN"
146                                 " calling tp3780I_StartDSP\n");
147                         retval = tp3780I_StartDSP(&pDrvData->rBDData);
148                         PRINTK_2(TRACE_MWAVE,
149                                 "mwavedd::mwave_ioctl, IOCTL_MW_RUN"
150                                 " retval %x from tp3780I_StartDSP\n",
151                                 retval);
152                         break;
153         
154                 case IOCTL_MW_DSP_ABILITIES: {
155                         MW_ABILITIES rAbilities;
156         
157                         PRINTK_1(TRACE_MWAVE,
158                                 "mwavedd::mwave_ioctl,"
159                                 " IOCTL_MW_DSP_ABILITIES calling"
160                                 " tp3780I_QueryAbilities\n");
161                         retval = tp3780I_QueryAbilities(&pDrvData->rBDData,
162                                         &rAbilities);
163                         PRINTK_2(TRACE_MWAVE,
164                                 "mwavedd::mwave_ioctl, IOCTL_MW_DSP_ABILITIES"
165                                 " retval %x from tp3780I_QueryAbilities\n",
166                                 retval);
167                         if (retval == 0) {
168                                 if( copy_to_user(arg, &rAbilities,
169                                                         sizeof(MW_ABILITIES)) )
170                                         return -EFAULT;
171                         }
172                         PRINTK_2(TRACE_MWAVE,
173                                 "mwavedd::mwave_ioctl, IOCTL_MW_DSP_ABILITIES"
174                                 " exit retval %x\n",
175                                 retval);
176                 }
177                         break;
178         
179                 case IOCTL_MW_READ_DATA:
180                 case IOCTL_MW_READCLEAR_DATA: {
181                         MW_READWRITE rReadData;
182                         unsigned short __user *pusBuffer = NULL;
183         
184                         if( copy_from_user(&rReadData, arg,
185                                                 sizeof(MW_READWRITE)) )
186                                 return -EFAULT;
187                         pusBuffer = (unsigned short __user *) (rReadData.pBuf);
188         
189                         PRINTK_4(TRACE_MWAVE,
190                                 "mwavedd::mwave_ioctl IOCTL_MW_READ_DATA,"
191                                 " size %lx, ioarg %lx pusBuffer %p\n",
192                                 rReadData.ulDataLength, ioarg, pusBuffer);
193                         retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData,
194                                         iocmd,
195                                         pusBuffer,
196                                         rReadData.ulDataLength,
197                                         rReadData.usDspAddress);
198                 }
199                         break;
200         
201                 case IOCTL_MW_READ_INST: {
202                         MW_READWRITE rReadData;
203                         unsigned short __user *pusBuffer = NULL;
204         
205                         if( copy_from_user(&rReadData, arg,
206                                                 sizeof(MW_READWRITE)) )
207                                 return -EFAULT;
208                         pusBuffer = (unsigned short __user *) (rReadData.pBuf);
209         
210                         PRINTK_4(TRACE_MWAVE,
211                                 "mwavedd::mwave_ioctl IOCTL_MW_READ_INST,"
212                                 " size %lx, ioarg %lx pusBuffer %p\n",
213                                 rReadData.ulDataLength / 2, ioarg,
214                                 pusBuffer);
215                         retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData,
216                                 iocmd, pusBuffer,
217                                 rReadData.ulDataLength / 2,
218                                 rReadData.usDspAddress);
219                 }
220                         break;
221         
222                 case IOCTL_MW_WRITE_DATA: {
223                         MW_READWRITE rWriteData;
224                         unsigned short __user *pusBuffer = NULL;
225         
226                         if( copy_from_user(&rWriteData, arg,
227                                                 sizeof(MW_READWRITE)) )
228                                 return -EFAULT;
229                         pusBuffer = (unsigned short __user *) (rWriteData.pBuf);
230         
231                         PRINTK_4(TRACE_MWAVE,
232                                 "mwavedd::mwave_ioctl IOCTL_MW_WRITE_DATA,"
233                                 " size %lx, ioarg %lx pusBuffer %p\n",
234                                 rWriteData.ulDataLength, ioarg,
235                                 pusBuffer);
236                         retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData,
237                                         iocmd, pusBuffer,
238                                         rWriteData.ulDataLength,
239                                         rWriteData.usDspAddress);
240                 }
241                         break;
242         
243                 case IOCTL_MW_WRITE_INST: {
244                         MW_READWRITE rWriteData;
245                         unsigned short __user *pusBuffer = NULL;
246         
247                         if( copy_from_user(&rWriteData, arg,
248                                                 sizeof(MW_READWRITE)) )
249                                 return -EFAULT;
250                         pusBuffer = (unsigned short __user *)(rWriteData.pBuf);
251         
252                         PRINTK_4(TRACE_MWAVE,
253                                 "mwavedd::mwave_ioctl IOCTL_MW_WRITE_INST,"
254                                 " size %lx, ioarg %lx pusBuffer %p\n",
255                                 rWriteData.ulDataLength, ioarg,
256                                 pusBuffer);
257                         retval = tp3780I_ReadWriteDspIStore(&pDrvData->rBDData,
258                                         iocmd, pusBuffer,
259                                         rWriteData.ulDataLength,
260                                         rWriteData.usDspAddress);
261                 }
262                         break;
263         
264                 case IOCTL_MW_REGISTER_IPC: {
265                         unsigned int ipcnum = (unsigned int) ioarg;
266         
267                         PRINTK_3(TRACE_MWAVE,
268                                 "mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC"
269                                 " ipcnum %x entry usIntCount %x\n",
270                                 ipcnum,
271                                 pDrvData->IPCs[ipcnum].usIntCount);
272         
273                         if (ipcnum > ARRAY_SIZE(pDrvData->IPCs)) {
274                                 PRINTK_ERROR(KERN_ERR_MWAVE
275                                                 "mwavedd::mwave_ioctl:"
276                                                 " IOCTL_MW_REGISTER_IPC:"
277                                                 " Error: Invalid ipcnum %x\n",
278                                                 ipcnum);
279                                 return -EINVAL;
280                         }
281                         pDrvData->IPCs[ipcnum].bIsHere = FALSE;
282                         pDrvData->IPCs[ipcnum].bIsEnabled = TRUE;
283         
284                         PRINTK_2(TRACE_MWAVE,
285                                 "mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC"
286                                 " ipcnum %x exit\n",
287                                 ipcnum);
288                 }
289                         break;
290         
291                 case IOCTL_MW_GET_IPC: {
292                         unsigned int ipcnum = (unsigned int) ioarg;
293         
294                         PRINTK_3(TRACE_MWAVE,
295                                 "mwavedd::mwave_ioctl IOCTL_MW_GET_IPC"
296                                 " ipcnum %x, usIntCount %x\n",
297                                 ipcnum,
298                                 pDrvData->IPCs[ipcnum].usIntCount);
299                         if (ipcnum > ARRAY_SIZE(pDrvData->IPCs)) {
300                                 PRINTK_ERROR(KERN_ERR_MWAVE
301                                                 "mwavedd::mwave_ioctl:"
302                                                 " IOCTL_MW_GET_IPC: Error:"
303                                                 " Invalid ipcnum %x\n", ipcnum);
304                                 return -EINVAL;
305                         }
306         
307                         if (pDrvData->IPCs[ipcnum].bIsEnabled == TRUE) {
308                                 DECLARE_WAITQUEUE(wait, current);
309
310                                 PRINTK_2(TRACE_MWAVE,
311                                         "mwavedd::mwave_ioctl, thread for"
312                                         " ipc %x going to sleep\n",
313                                         ipcnum);
314                                 add_wait_queue(&pDrvData->IPCs[ipcnum].ipc_wait_queue, &wait);
315                                 pDrvData->IPCs[ipcnum].bIsHere = TRUE;
316                                 set_current_state(TASK_INTERRUPTIBLE);
317                                 /* check whether an event was signalled by */
318                                 /* the interrupt handler while we were gone */
319                                 if (pDrvData->IPCs[ipcnum].usIntCount == 1) {   /* first int has occurred (race condition) */
320                                         pDrvData->IPCs[ipcnum].usIntCount = 2;  /* first int has been handled */
321                                         PRINTK_2(TRACE_MWAVE,
322                                                 "mwavedd::mwave_ioctl"
323                                                 " IOCTL_MW_GET_IPC ipcnum %x"
324                                                 " handling first int\n",
325                                                 ipcnum);
326                                 } else {        /* either 1st int has not yet occurred, or we have already handled the first int */
327                                         schedule();
328                                         if (pDrvData->IPCs[ipcnum].usIntCount == 1) {
329                                                 pDrvData->IPCs[ipcnum].usIntCount = 2;
330                                         }
331                                         PRINTK_2(TRACE_MWAVE,
332                                                 "mwavedd::mwave_ioctl"
333                                                 " IOCTL_MW_GET_IPC ipcnum %x"
334                                                 " woke up and returning to"
335                                                 " application\n",
336                                                 ipcnum);
337                                 }
338                                 pDrvData->IPCs[ipcnum].bIsHere = FALSE;
339                                 remove_wait_queue(&pDrvData->IPCs[ipcnum].ipc_wait_queue, &wait);
340                                 set_current_state(TASK_RUNNING);
341                                 PRINTK_2(TRACE_MWAVE,
342                                         "mwavedd::mwave_ioctl IOCTL_MW_GET_IPC,"
343                                         " returning thread for ipc %x"
344                                         " processing\n",
345                                         ipcnum);
346                         }
347                 }
348                         break;
349         
350                 case IOCTL_MW_UNREGISTER_IPC: {
351                         unsigned int ipcnum = (unsigned int) ioarg;
352         
353                         PRINTK_2(TRACE_MWAVE,
354                                 "mwavedd::mwave_ioctl IOCTL_MW_UNREGISTER_IPC"
355                                 " ipcnum %x\n",
356                                 ipcnum);
357                         if (ipcnum > ARRAY_SIZE(pDrvData->IPCs)) {
358                                 PRINTK_ERROR(KERN_ERR_MWAVE
359                                                 "mwavedd::mwave_ioctl:"
360                                                 " IOCTL_MW_UNREGISTER_IPC:"
361                                                 " Error: Invalid ipcnum %x\n",
362                                                 ipcnum);
363                                 return -EINVAL;
364                         }
365                         if (pDrvData->IPCs[ipcnum].bIsEnabled == TRUE) {
366                                 pDrvData->IPCs[ipcnum].bIsEnabled = FALSE;
367                                 if (pDrvData->IPCs[ipcnum].bIsHere == TRUE) {
368                                         wake_up_interruptible(&pDrvData->IPCs[ipcnum].ipc_wait_queue);
369                                 }
370                         }
371                 }
372                         break;
373         
374                 default:
375                         PRINTK_ERROR(KERN_ERR_MWAVE "mwavedd::mwave_ioctl:"
376                                         " Error: Unrecognized iocmd %x\n",
377                                         iocmd);
378                         return -ENOTTY;
379                         break;
380         } /* switch */
381
382         PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_ioctl, exit retval %x\n", retval);
383
384         return retval;
385 }
386
387
388 static ssize_t mwave_read(struct file *file, char __user *buf, size_t count,
389                           loff_t * ppos)
390 {
391         PRINTK_5(TRACE_MWAVE,
392                 "mwavedd::mwave_read entry file %p, buf %p, count %zx ppos %p\n",
393                 file, buf, count, ppos);
394
395         return -EINVAL;
396 }
397
398
399 static ssize_t mwave_write(struct file *file, const char __user *buf,
400                            size_t count, loff_t * ppos)
401 {
402         PRINTK_5(TRACE_MWAVE,
403                 "mwavedd::mwave_write entry file %p, buf %p,"
404                 " count %zx ppos %p\n",
405                 file, buf, count, ppos);
406
407         return -EINVAL;
408 }
409
410
411 static int register_serial_portandirq(unsigned int port, int irq)
412 {
413         struct serial_struct serial;
414
415         switch ( port ) {
416                 case 0x3f8:
417                 case 0x2f8:
418                 case 0x3e8:
419                 case 0x2e8:
420                         /* OK */
421                         break;
422                 default:
423                         PRINTK_ERROR(KERN_ERR_MWAVE
424                                         "mwavedd::register_serial_portandirq:"
425                                         " Error: Illegal port %x\n", port );
426                         return -1;
427         } /* switch */
428         /* port is okay */
429
430         switch ( irq ) {
431                 case 3:
432                 case 4:
433                 case 5:
434                 case 7:
435                         /* OK */
436                         break;
437                 default:
438                         PRINTK_ERROR(KERN_ERR_MWAVE
439                                         "mwavedd::register_serial_portandirq:"
440                                         " Error: Illegal irq %x\n", irq );
441                         return -1;
442         } /* switch */
443         /* irq is okay */
444
445         memset(&serial, 0, sizeof(serial));
446         serial.port = port;
447         serial.irq = irq;
448         serial.flags = ASYNC_SHARE_IRQ;
449
450         return register_serial(&serial);
451 }
452
453
454 static struct file_operations mwave_fops = {
455         .owner          = THIS_MODULE,
456         .read           = mwave_read,
457         .write          = mwave_write,
458         .ioctl          = mwave_ioctl,
459         .open           = mwave_open,
460         .release        = mwave_close
461 };
462
463
464 static struct miscdevice mwave_misc_dev = { MWAVE_MINOR, "mwave", &mwave_fops };
465
466 #if 0 /* totally b0rked */
467 /*
468  * sysfs support <paulsch@us.ibm.com>
469  */
470
471 struct device mwave_device;
472
473 /* Prevent code redundancy, create a macro for mwave_show_* functions. */
474 #define mwave_show_function(attr_name, format_string, field)            \
475 static ssize_t mwave_show_##attr_name(struct device *dev, struct device_attribute *attr, char *buf)     \
476 {                                                                       \
477         DSP_3780I_CONFIG_SETTINGS *pSettings =                          \
478                 &mwave_s_mdd.rBDData.rDspSettings;                      \
479         return sprintf(buf, format_string, pSettings->field);           \
480 }
481
482 /* All of our attributes are read attributes. */
483 #define mwave_dev_rd_attr(attr_name, format_string, field)              \
484         mwave_show_function(attr_name, format_string, field)            \
485 static DEVICE_ATTR(attr_name, S_IRUGO, mwave_show_##attr_name, NULL)
486
487 mwave_dev_rd_attr (3780i_dma, "%i\n", usDspDma);
488 mwave_dev_rd_attr (3780i_irq, "%i\n", usDspIrq);
489 mwave_dev_rd_attr (3780i_io, "%#.4x\n", usDspBaseIO);
490 mwave_dev_rd_attr (uart_irq, "%i\n", usUartIrq);
491 mwave_dev_rd_attr (uart_io, "%#.4x\n", usUartBaseIO);
492
493 static struct device_attribute * const mwave_dev_attrs[] = {
494         &dev_attr_3780i_dma,
495         &dev_attr_3780i_irq,
496         &dev_attr_3780i_io,
497         &dev_attr_uart_irq,
498         &dev_attr_uart_io,
499 };
500 #endif
501
502 /*
503 * mwave_init is called on module load
504 *
505 * mwave_exit is called on module unload
506 * mwave_exit is also used to clean up after an aborted mwave_init
507 */
508 static void mwave_exit(void)
509 {
510         pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd;
511
512         PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_exit entry\n");
513
514 #if 0
515         for (i = 0; i < pDrvData->nr_registered_attrs; i++)
516                 device_remove_file(&mwave_device, mwave_dev_attrs[i]);
517         pDrvData->nr_registered_attrs = 0;
518
519         if (pDrvData->device_registered) {
520                 device_unregister(&mwave_device);
521                 pDrvData->device_registered = FALSE;
522         }
523 #endif
524
525         if ( pDrvData->sLine >= 0 ) {
526                 unregister_serial(pDrvData->sLine);
527         }
528         if (pDrvData->bMwaveDevRegistered) {
529                 misc_deregister(&mwave_misc_dev);
530         }
531         if (pDrvData->bDSPEnabled) {
532                 tp3780I_DisableDSP(&pDrvData->rBDData);
533         }
534         if (pDrvData->bResourcesClaimed) {
535                 tp3780I_ReleaseResources(&pDrvData->rBDData);
536         }
537         if (pDrvData->bBDInitialized) {
538                 tp3780I_Cleanup(&pDrvData->rBDData);
539         }
540
541         PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_exit exit\n");
542 }
543
544 module_exit(mwave_exit);
545
546 static int __init mwave_init(void)
547 {
548         int i;
549         int retval = 0;
550         pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd;
551
552         PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_init entry\n");
553
554         memset(&mwave_s_mdd, 0, sizeof(MWAVE_DEVICE_DATA));
555
556         pDrvData->bBDInitialized = FALSE;
557         pDrvData->bResourcesClaimed = FALSE;
558         pDrvData->bDSPEnabled = FALSE;
559         pDrvData->bDSPReset = FALSE;
560         pDrvData->bMwaveDevRegistered = FALSE;
561         pDrvData->sLine = -1;
562
563         for (i = 0; i < ARRAY_SIZE(pDrvData->IPCs); i++) {
564                 pDrvData->IPCs[i].bIsEnabled = FALSE;
565                 pDrvData->IPCs[i].bIsHere = FALSE;
566                 pDrvData->IPCs[i].usIntCount = 0;       /* no ints received yet */
567                 init_waitqueue_head(&pDrvData->IPCs[i].ipc_wait_queue);
568         }
569
570         retval = tp3780I_InitializeBoardData(&pDrvData->rBDData);
571         PRINTK_2(TRACE_MWAVE,
572                 "mwavedd::mwave_init, return from tp3780I_InitializeBoardData"
573                 " retval %x\n",
574                 retval);
575         if (retval) {
576                 PRINTK_ERROR(KERN_ERR_MWAVE
577                                 "mwavedd::mwave_init: Error:"
578                                 " Failed to initialize board data\n");
579                 goto cleanup_error;
580         }
581         pDrvData->bBDInitialized = TRUE;
582
583         retval = tp3780I_CalcResources(&pDrvData->rBDData);
584         PRINTK_2(TRACE_MWAVE,
585                 "mwavedd::mwave_init, return from tp3780I_CalcResources"
586                 " retval %x\n",
587                 retval);
588         if (retval) {
589                 PRINTK_ERROR(KERN_ERR_MWAVE
590                                 "mwavedd:mwave_init: Error:"
591                                 " Failed to calculate resources\n");
592                 goto cleanup_error;
593         }
594
595         retval = tp3780I_ClaimResources(&pDrvData->rBDData);
596         PRINTK_2(TRACE_MWAVE,
597                 "mwavedd::mwave_init, return from tp3780I_ClaimResources"
598                 " retval %x\n",
599                 retval);
600         if (retval) {
601                 PRINTK_ERROR(KERN_ERR_MWAVE
602                                 "mwavedd:mwave_init: Error:"
603                                 " Failed to claim resources\n");
604                 goto cleanup_error;
605         }
606         pDrvData->bResourcesClaimed = TRUE;
607
608         retval = tp3780I_EnableDSP(&pDrvData->rBDData);
609         PRINTK_2(TRACE_MWAVE,
610                 "mwavedd::mwave_init, return from tp3780I_EnableDSP"
611                 " retval %x\n",
612                 retval);
613         if (retval) {
614                 PRINTK_ERROR(KERN_ERR_MWAVE
615                                 "mwavedd:mwave_init: Error:"
616                                 " Failed to enable DSP\n");
617                 goto cleanup_error;
618         }
619         pDrvData->bDSPEnabled = TRUE;
620
621         if (misc_register(&mwave_misc_dev) < 0) {
622                 PRINTK_ERROR(KERN_ERR_MWAVE
623                                 "mwavedd:mwave_init: Error:"
624                                 " Failed to register misc device\n");
625                 goto cleanup_error;
626         }
627         pDrvData->bMwaveDevRegistered = TRUE;
628
629         pDrvData->sLine = register_serial_portandirq(
630                 pDrvData->rBDData.rDspSettings.usUartBaseIO,
631                 pDrvData->rBDData.rDspSettings.usUartIrq
632         );
633         if (pDrvData->sLine < 0) {
634                 PRINTK_ERROR(KERN_ERR_MWAVE
635                                 "mwavedd:mwave_init: Error:"
636                                 " Failed to register serial driver\n");
637                 goto cleanup_error;
638         }
639         /* uart is registered */
640
641 #if 0
642         /* sysfs */
643         memset(&mwave_device, 0, sizeof (struct device));
644         snprintf(mwave_device.bus_id, BUS_ID_SIZE, "mwave");
645
646         if (device_register(&mwave_device))
647                 goto cleanup_error;
648         pDrvData->device_registered = TRUE;
649         for (i = 0; i < ARRAY_SIZE(mwave_dev_attrs); i++) {
650                 if(device_create_file(&mwave_device, mwave_dev_attrs[i])) {
651                         PRINTK_ERROR(KERN_ERR_MWAVE
652                                         "mwavedd:mwave_init: Error:"
653                                         " Failed to create sysfs file %s\n",
654                                         mwave_dev_attrs[i]->attr.name);
655                         goto cleanup_error;
656                 }
657                 pDrvData->nr_registered_attrs++;
658         }
659 #endif
660
661         /* SUCCESS! */
662         return 0;
663
664 cleanup_error:
665         PRINTK_ERROR(KERN_ERR_MWAVE
666                         "mwavedd::mwave_init: Error:"
667                         " Failed to initialize\n");
668         mwave_exit(); /* clean up */
669
670         return -EIO;
671 }
672
673 module_init(mwave_init);
674