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1da177e4 LT |
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> | |
5981d644 | 60 | #include <linux/serial_8250.h> |
1da177e4 LT |
61 | #include "smapi.h" |
62 | #include "mwavedd.h" | |
63 | #include "3780i.h" | |
64 | #include "tp3780i.h" | |
65 | ||
66 | MODULE_DESCRIPTION("3780i Advanced Communications Processor (Mwave) driver"); | |
67 | MODULE_AUTHOR("Mike Sullivan and Paul Schroeder"); | |
68 | MODULE_LICENSE("GPL"); | |
69 | ||
70 | /* | |
71 | * These parameters support the setting of MWave resources. Note that no | |
72 | * checks are made against other devices (ie. superio) for conflicts. | |
73 | * We'll depend on users using the tpctl utility to do that for now | |
74 | */ | |
75 | int mwave_debug = 0; | |
76 | int mwave_3780i_irq = 0; | |
77 | int mwave_3780i_io = 0; | |
78 | int mwave_uart_irq = 0; | |
79 | int mwave_uart_io = 0; | |
80 | module_param(mwave_debug, int, 0); | |
81 | module_param(mwave_3780i_irq, int, 0); | |
82 | module_param(mwave_3780i_io, int, 0); | |
83 | module_param(mwave_uart_irq, int, 0); | |
84 | module_param(mwave_uart_io, int, 0); | |
85 | ||
86 | static int mwave_open(struct inode *inode, struct file *file); | |
87 | static int mwave_close(struct inode *inode, struct file *file); | |
88 | static int mwave_ioctl(struct inode *inode, struct file *filp, | |
89 | unsigned int iocmd, unsigned long ioarg); | |
90 | ||
91 | MWAVE_DEVICE_DATA mwave_s_mdd; | |
92 | ||
93 | static int mwave_open(struct inode *inode, struct file *file) | |
94 | { | |
95 | unsigned int retval = 0; | |
96 | ||
97 | PRINTK_3(TRACE_MWAVE, | |
98 | "mwavedd::mwave_open, entry inode %p file %p\n", | |
99 | inode, file); | |
100 | PRINTK_2(TRACE_MWAVE, | |
101 | "mwavedd::mwave_open, exit return retval %x\n", retval); | |
102 | ||
103 | return retval; | |
104 | } | |
105 | ||
106 | static int mwave_close(struct inode *inode, struct file *file) | |
107 | { | |
108 | unsigned int retval = 0; | |
109 | ||
110 | PRINTK_3(TRACE_MWAVE, | |
111 | "mwavedd::mwave_close, entry inode %p file %p\n", | |
112 | inode, file); | |
113 | ||
114 | PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_close, exit retval %x\n", | |
115 | retval); | |
116 | ||
117 | return retval; | |
118 | } | |
119 | ||
120 | static int mwave_ioctl(struct inode *inode, struct file *file, | |
121 | unsigned int iocmd, unsigned long ioarg) | |
122 | { | |
123 | unsigned int retval = 0; | |
124 | pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd; | |
125 | void __user *arg = (void __user *)ioarg; | |
126 | ||
127 | PRINTK_5(TRACE_MWAVE, | |
128 | "mwavedd::mwave_ioctl, entry inode %p file %p cmd %x arg %x\n", | |
129 | inode, file, iocmd, (int) ioarg); | |
130 | ||
131 | switch (iocmd) { | |
132 | ||
133 | case IOCTL_MW_RESET: | |
134 | PRINTK_1(TRACE_MWAVE, | |
135 | "mwavedd::mwave_ioctl, IOCTL_MW_RESET" | |
136 | " calling tp3780I_ResetDSP\n"); | |
137 | retval = tp3780I_ResetDSP(&pDrvData->rBDData); | |
138 | PRINTK_2(TRACE_MWAVE, | |
139 | "mwavedd::mwave_ioctl, IOCTL_MW_RESET" | |
140 | " retval %x from tp3780I_ResetDSP\n", | |
141 | retval); | |
142 | break; | |
143 | ||
144 | case IOCTL_MW_RUN: | |
145 | PRINTK_1(TRACE_MWAVE, | |
146 | "mwavedd::mwave_ioctl, IOCTL_MW_RUN" | |
147 | " calling tp3780I_StartDSP\n"); | |
148 | retval = tp3780I_StartDSP(&pDrvData->rBDData); | |
149 | PRINTK_2(TRACE_MWAVE, | |
150 | "mwavedd::mwave_ioctl, IOCTL_MW_RUN" | |
151 | " retval %x from tp3780I_StartDSP\n", | |
152 | retval); | |
153 | break; | |
154 | ||
155 | case IOCTL_MW_DSP_ABILITIES: { | |
156 | MW_ABILITIES rAbilities; | |
157 | ||
158 | PRINTK_1(TRACE_MWAVE, | |
159 | "mwavedd::mwave_ioctl," | |
160 | " IOCTL_MW_DSP_ABILITIES calling" | |
161 | " tp3780I_QueryAbilities\n"); | |
162 | retval = tp3780I_QueryAbilities(&pDrvData->rBDData, | |
163 | &rAbilities); | |
164 | PRINTK_2(TRACE_MWAVE, | |
165 | "mwavedd::mwave_ioctl, IOCTL_MW_DSP_ABILITIES" | |
166 | " retval %x from tp3780I_QueryAbilities\n", | |
167 | retval); | |
168 | if (retval == 0) { | |
169 | if( copy_to_user(arg, &rAbilities, | |
170 | sizeof(MW_ABILITIES)) ) | |
171 | return -EFAULT; | |
172 | } | |
173 | PRINTK_2(TRACE_MWAVE, | |
174 | "mwavedd::mwave_ioctl, IOCTL_MW_DSP_ABILITIES" | |
175 | " exit retval %x\n", | |
176 | retval); | |
177 | } | |
178 | break; | |
179 | ||
180 | case IOCTL_MW_READ_DATA: | |
181 | case IOCTL_MW_READCLEAR_DATA: { | |
182 | MW_READWRITE rReadData; | |
183 | unsigned short __user *pusBuffer = NULL; | |
184 | ||
185 | if( copy_from_user(&rReadData, arg, | |
186 | sizeof(MW_READWRITE)) ) | |
187 | return -EFAULT; | |
188 | pusBuffer = (unsigned short __user *) (rReadData.pBuf); | |
189 | ||
190 | PRINTK_4(TRACE_MWAVE, | |
191 | "mwavedd::mwave_ioctl IOCTL_MW_READ_DATA," | |
192 | " size %lx, ioarg %lx pusBuffer %p\n", | |
193 | rReadData.ulDataLength, ioarg, pusBuffer); | |
194 | retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData, | |
195 | iocmd, | |
196 | pusBuffer, | |
197 | rReadData.ulDataLength, | |
198 | rReadData.usDspAddress); | |
199 | } | |
200 | break; | |
201 | ||
202 | case IOCTL_MW_READ_INST: { | |
203 | MW_READWRITE rReadData; | |
204 | unsigned short __user *pusBuffer = NULL; | |
205 | ||
206 | if( copy_from_user(&rReadData, arg, | |
207 | sizeof(MW_READWRITE)) ) | |
208 | return -EFAULT; | |
209 | pusBuffer = (unsigned short __user *) (rReadData.pBuf); | |
210 | ||
211 | PRINTK_4(TRACE_MWAVE, | |
212 | "mwavedd::mwave_ioctl IOCTL_MW_READ_INST," | |
213 | " size %lx, ioarg %lx pusBuffer %p\n", | |
214 | rReadData.ulDataLength / 2, ioarg, | |
215 | pusBuffer); | |
216 | retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData, | |
217 | iocmd, pusBuffer, | |
218 | rReadData.ulDataLength / 2, | |
219 | rReadData.usDspAddress); | |
220 | } | |
221 | break; | |
222 | ||
223 | case IOCTL_MW_WRITE_DATA: { | |
224 | MW_READWRITE rWriteData; | |
225 | unsigned short __user *pusBuffer = NULL; | |
226 | ||
227 | if( copy_from_user(&rWriteData, arg, | |
228 | sizeof(MW_READWRITE)) ) | |
229 | return -EFAULT; | |
230 | pusBuffer = (unsigned short __user *) (rWriteData.pBuf); | |
231 | ||
232 | PRINTK_4(TRACE_MWAVE, | |
233 | "mwavedd::mwave_ioctl IOCTL_MW_WRITE_DATA," | |
234 | " size %lx, ioarg %lx pusBuffer %p\n", | |
235 | rWriteData.ulDataLength, ioarg, | |
236 | pusBuffer); | |
237 | retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData, | |
238 | iocmd, pusBuffer, | |
239 | rWriteData.ulDataLength, | |
240 | rWriteData.usDspAddress); | |
241 | } | |
242 | break; | |
243 | ||
244 | case IOCTL_MW_WRITE_INST: { | |
245 | MW_READWRITE rWriteData; | |
246 | unsigned short __user *pusBuffer = NULL; | |
247 | ||
248 | if( copy_from_user(&rWriteData, arg, | |
249 | sizeof(MW_READWRITE)) ) | |
250 | return -EFAULT; | |
251 | pusBuffer = (unsigned short __user *)(rWriteData.pBuf); | |
252 | ||
253 | PRINTK_4(TRACE_MWAVE, | |
254 | "mwavedd::mwave_ioctl IOCTL_MW_WRITE_INST," | |
255 | " size %lx, ioarg %lx pusBuffer %p\n", | |
256 | rWriteData.ulDataLength, ioarg, | |
257 | pusBuffer); | |
258 | retval = tp3780I_ReadWriteDspIStore(&pDrvData->rBDData, | |
259 | iocmd, pusBuffer, | |
260 | rWriteData.ulDataLength, | |
261 | rWriteData.usDspAddress); | |
262 | } | |
263 | break; | |
264 | ||
265 | case IOCTL_MW_REGISTER_IPC: { | |
266 | unsigned int ipcnum = (unsigned int) ioarg; | |
267 | ||
268 | PRINTK_3(TRACE_MWAVE, | |
269 | "mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC" | |
270 | " ipcnum %x entry usIntCount %x\n", | |
271 | ipcnum, | |
272 | pDrvData->IPCs[ipcnum].usIntCount); | |
273 | ||
d698f1c7 | 274 | if (ipcnum >= ARRAY_SIZE(pDrvData->IPCs)) { |
1da177e4 LT |
275 | PRINTK_ERROR(KERN_ERR_MWAVE |
276 | "mwavedd::mwave_ioctl:" | |
277 | " IOCTL_MW_REGISTER_IPC:" | |
278 | " Error: Invalid ipcnum %x\n", | |
279 | ipcnum); | |
280 | return -EINVAL; | |
281 | } | |
282 | pDrvData->IPCs[ipcnum].bIsHere = FALSE; | |
283 | pDrvData->IPCs[ipcnum].bIsEnabled = TRUE; | |
284 | ||
285 | PRINTK_2(TRACE_MWAVE, | |
286 | "mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC" | |
287 | " ipcnum %x exit\n", | |
288 | ipcnum); | |
289 | } | |
290 | break; | |
291 | ||
292 | case IOCTL_MW_GET_IPC: { | |
293 | unsigned int ipcnum = (unsigned int) ioarg; | |
294 | ||
295 | PRINTK_3(TRACE_MWAVE, | |
296 | "mwavedd::mwave_ioctl IOCTL_MW_GET_IPC" | |
297 | " ipcnum %x, usIntCount %x\n", | |
298 | ipcnum, | |
299 | pDrvData->IPCs[ipcnum].usIntCount); | |
300 | if (ipcnum > ARRAY_SIZE(pDrvData->IPCs)) { | |
301 | PRINTK_ERROR(KERN_ERR_MWAVE | |
302 | "mwavedd::mwave_ioctl:" | |
303 | " IOCTL_MW_GET_IPC: Error:" | |
304 | " Invalid ipcnum %x\n", ipcnum); | |
305 | return -EINVAL; | |
306 | } | |
307 | ||
308 | if (pDrvData->IPCs[ipcnum].bIsEnabled == TRUE) { | |
309 | DECLARE_WAITQUEUE(wait, current); | |
310 | ||
311 | PRINTK_2(TRACE_MWAVE, | |
312 | "mwavedd::mwave_ioctl, thread for" | |
313 | " ipc %x going to sleep\n", | |
314 | ipcnum); | |
315 | add_wait_queue(&pDrvData->IPCs[ipcnum].ipc_wait_queue, &wait); | |
316 | pDrvData->IPCs[ipcnum].bIsHere = TRUE; | |
317 | set_current_state(TASK_INTERRUPTIBLE); | |
318 | /* check whether an event was signalled by */ | |
319 | /* the interrupt handler while we were gone */ | |
320 | if (pDrvData->IPCs[ipcnum].usIntCount == 1) { /* first int has occurred (race condition) */ | |
321 | pDrvData->IPCs[ipcnum].usIntCount = 2; /* first int has been handled */ | |
322 | PRINTK_2(TRACE_MWAVE, | |
323 | "mwavedd::mwave_ioctl" | |
324 | " IOCTL_MW_GET_IPC ipcnum %x" | |
325 | " handling first int\n", | |
326 | ipcnum); | |
327 | } else { /* either 1st int has not yet occurred, or we have already handled the first int */ | |
328 | schedule(); | |
329 | if (pDrvData->IPCs[ipcnum].usIntCount == 1) { | |
330 | pDrvData->IPCs[ipcnum].usIntCount = 2; | |
331 | } | |
332 | PRINTK_2(TRACE_MWAVE, | |
333 | "mwavedd::mwave_ioctl" | |
334 | " IOCTL_MW_GET_IPC ipcnum %x" | |
335 | " woke up and returning to" | |
336 | " application\n", | |
337 | ipcnum); | |
338 | } | |
339 | pDrvData->IPCs[ipcnum].bIsHere = FALSE; | |
340 | remove_wait_queue(&pDrvData->IPCs[ipcnum].ipc_wait_queue, &wait); | |
341 | set_current_state(TASK_RUNNING); | |
342 | PRINTK_2(TRACE_MWAVE, | |
343 | "mwavedd::mwave_ioctl IOCTL_MW_GET_IPC," | |
344 | " returning thread for ipc %x" | |
345 | " processing\n", | |
346 | ipcnum); | |
347 | } | |
348 | } | |
349 | break; | |
350 | ||
351 | case IOCTL_MW_UNREGISTER_IPC: { | |
352 | unsigned int ipcnum = (unsigned int) ioarg; | |
353 | ||
354 | PRINTK_2(TRACE_MWAVE, | |
355 | "mwavedd::mwave_ioctl IOCTL_MW_UNREGISTER_IPC" | |
356 | " ipcnum %x\n", | |
357 | ipcnum); | |
358 | if (ipcnum > ARRAY_SIZE(pDrvData->IPCs)) { | |
359 | PRINTK_ERROR(KERN_ERR_MWAVE | |
360 | "mwavedd::mwave_ioctl:" | |
361 | " IOCTL_MW_UNREGISTER_IPC:" | |
362 | " Error: Invalid ipcnum %x\n", | |
363 | ipcnum); | |
364 | return -EINVAL; | |
365 | } | |
366 | if (pDrvData->IPCs[ipcnum].bIsEnabled == TRUE) { | |
367 | pDrvData->IPCs[ipcnum].bIsEnabled = FALSE; | |
368 | if (pDrvData->IPCs[ipcnum].bIsHere == TRUE) { | |
369 | wake_up_interruptible(&pDrvData->IPCs[ipcnum].ipc_wait_queue); | |
370 | } | |
371 | } | |
372 | } | |
373 | break; | |
374 | ||
375 | default: | |
376 | PRINTK_ERROR(KERN_ERR_MWAVE "mwavedd::mwave_ioctl:" | |
377 | " Error: Unrecognized iocmd %x\n", | |
378 | iocmd); | |
379 | return -ENOTTY; | |
380 | break; | |
381 | } /* switch */ | |
382 | ||
383 | PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_ioctl, exit retval %x\n", retval); | |
384 | ||
385 | return retval; | |
386 | } | |
387 | ||
388 | ||
389 | static ssize_t mwave_read(struct file *file, char __user *buf, size_t count, | |
390 | loff_t * ppos) | |
391 | { | |
392 | PRINTK_5(TRACE_MWAVE, | |
393 | "mwavedd::mwave_read entry file %p, buf %p, count %zx ppos %p\n", | |
394 | file, buf, count, ppos); | |
395 | ||
396 | return -EINVAL; | |
397 | } | |
398 | ||
399 | ||
400 | static ssize_t mwave_write(struct file *file, const char __user *buf, | |
401 | size_t count, loff_t * ppos) | |
402 | { | |
403 | PRINTK_5(TRACE_MWAVE, | |
404 | "mwavedd::mwave_write entry file %p, buf %p," | |
405 | " count %zx ppos %p\n", | |
406 | file, buf, count, ppos); | |
407 | ||
408 | return -EINVAL; | |
409 | } | |
410 | ||
411 | ||
412 | static int register_serial_portandirq(unsigned int port, int irq) | |
413 | { | |
5981d644 AC |
414 | struct uart_port uart; |
415 | ||
1da177e4 LT |
416 | switch ( port ) { |
417 | case 0x3f8: | |
418 | case 0x2f8: | |
419 | case 0x3e8: | |
420 | case 0x2e8: | |
421 | /* OK */ | |
422 | break; | |
423 | default: | |
424 | PRINTK_ERROR(KERN_ERR_MWAVE | |
425 | "mwavedd::register_serial_portandirq:" | |
426 | " Error: Illegal port %x\n", port ); | |
427 | return -1; | |
428 | } /* switch */ | |
429 | /* port is okay */ | |
430 | ||
431 | switch ( irq ) { | |
432 | case 3: | |
433 | case 4: | |
434 | case 5: | |
435 | case 7: | |
436 | /* OK */ | |
437 | break; | |
438 | default: | |
439 | PRINTK_ERROR(KERN_ERR_MWAVE | |
440 | "mwavedd::register_serial_portandirq:" | |
441 | " Error: Illegal irq %x\n", irq ); | |
442 | return -1; | |
443 | } /* switch */ | |
444 | /* irq is okay */ | |
445 | ||
5981d644 AC |
446 | memset(&uart, 0, sizeof(struct uart_port)); |
447 | ||
448 | uart.uartclk = 1843200; | |
449 | uart.iobase = port; | |
450 | uart.irq = irq; | |
451 | uart.iotype = UPIO_PORT; | |
452 | uart.flags = UPF_SHARE_IRQ; | |
453 | return serial8250_register_port(&uart); | |
1da177e4 LT |
454 | } |
455 | ||
456 | ||
62322d25 | 457 | static const struct file_operations mwave_fops = { |
1da177e4 LT |
458 | .owner = THIS_MODULE, |
459 | .read = mwave_read, | |
460 | .write = mwave_write, | |
461 | .ioctl = mwave_ioctl, | |
462 | .open = mwave_open, | |
463 | .release = mwave_close | |
464 | }; | |
465 | ||
466 | ||
467 | static struct miscdevice mwave_misc_dev = { MWAVE_MINOR, "mwave", &mwave_fops }; | |
468 | ||
469 | #if 0 /* totally b0rked */ | |
470 | /* | |
471 | * sysfs support <paulsch@us.ibm.com> | |
472 | */ | |
473 | ||
474 | struct device mwave_device; | |
475 | ||
476 | /* Prevent code redundancy, create a macro for mwave_show_* functions. */ | |
477 | #define mwave_show_function(attr_name, format_string, field) \ | |
74880c06 | 478 | static ssize_t mwave_show_##attr_name(struct device *dev, struct device_attribute *attr, char *buf) \ |
1da177e4 LT |
479 | { \ |
480 | DSP_3780I_CONFIG_SETTINGS *pSettings = \ | |
481 | &mwave_s_mdd.rBDData.rDspSettings; \ | |
482 | return sprintf(buf, format_string, pSettings->field); \ | |
483 | } | |
484 | ||
485 | /* All of our attributes are read attributes. */ | |
486 | #define mwave_dev_rd_attr(attr_name, format_string, field) \ | |
487 | mwave_show_function(attr_name, format_string, field) \ | |
488 | static DEVICE_ATTR(attr_name, S_IRUGO, mwave_show_##attr_name, NULL) | |
489 | ||
490 | mwave_dev_rd_attr (3780i_dma, "%i\n", usDspDma); | |
491 | mwave_dev_rd_attr (3780i_irq, "%i\n", usDspIrq); | |
492 | mwave_dev_rd_attr (3780i_io, "%#.4x\n", usDspBaseIO); | |
493 | mwave_dev_rd_attr (uart_irq, "%i\n", usUartIrq); | |
494 | mwave_dev_rd_attr (uart_io, "%#.4x\n", usUartBaseIO); | |
495 | ||
496 | static struct device_attribute * const mwave_dev_attrs[] = { | |
497 | &dev_attr_3780i_dma, | |
498 | &dev_attr_3780i_irq, | |
499 | &dev_attr_3780i_io, | |
500 | &dev_attr_uart_irq, | |
501 | &dev_attr_uart_io, | |
502 | }; | |
503 | #endif | |
504 | ||
505 | /* | |
506 | * mwave_init is called on module load | |
507 | * | |
508 | * mwave_exit is called on module unload | |
509 | * mwave_exit is also used to clean up after an aborted mwave_init | |
510 | */ | |
511 | static void mwave_exit(void) | |
512 | { | |
513 | pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd; | |
514 | ||
515 | PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_exit entry\n"); | |
516 | ||
517 | #if 0 | |
518 | for (i = 0; i < pDrvData->nr_registered_attrs; i++) | |
519 | device_remove_file(&mwave_device, mwave_dev_attrs[i]); | |
520 | pDrvData->nr_registered_attrs = 0; | |
521 | ||
522 | if (pDrvData->device_registered) { | |
523 | device_unregister(&mwave_device); | |
524 | pDrvData->device_registered = FALSE; | |
525 | } | |
526 | #endif | |
527 | ||
528 | if ( pDrvData->sLine >= 0 ) { | |
5981d644 | 529 | serial8250_unregister_port(pDrvData->sLine); |
1da177e4 LT |
530 | } |
531 | if (pDrvData->bMwaveDevRegistered) { | |
532 | misc_deregister(&mwave_misc_dev); | |
533 | } | |
534 | if (pDrvData->bDSPEnabled) { | |
535 | tp3780I_DisableDSP(&pDrvData->rBDData); | |
536 | } | |
537 | if (pDrvData->bResourcesClaimed) { | |
538 | tp3780I_ReleaseResources(&pDrvData->rBDData); | |
539 | } | |
540 | if (pDrvData->bBDInitialized) { | |
541 | tp3780I_Cleanup(&pDrvData->rBDData); | |
542 | } | |
543 | ||
544 | PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_exit exit\n"); | |
545 | } | |
546 | ||
547 | module_exit(mwave_exit); | |
548 | ||
549 | static int __init mwave_init(void) | |
550 | { | |
551 | int i; | |
552 | int retval = 0; | |
553 | pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd; | |
554 | ||
555 | PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_init entry\n"); | |
556 | ||
557 | memset(&mwave_s_mdd, 0, sizeof(MWAVE_DEVICE_DATA)); | |
558 | ||
559 | pDrvData->bBDInitialized = FALSE; | |
560 | pDrvData->bResourcesClaimed = FALSE; | |
561 | pDrvData->bDSPEnabled = FALSE; | |
562 | pDrvData->bDSPReset = FALSE; | |
563 | pDrvData->bMwaveDevRegistered = FALSE; | |
564 | pDrvData->sLine = -1; | |
565 | ||
566 | for (i = 0; i < ARRAY_SIZE(pDrvData->IPCs); i++) { | |
567 | pDrvData->IPCs[i].bIsEnabled = FALSE; | |
568 | pDrvData->IPCs[i].bIsHere = FALSE; | |
569 | pDrvData->IPCs[i].usIntCount = 0; /* no ints received yet */ | |
570 | init_waitqueue_head(&pDrvData->IPCs[i].ipc_wait_queue); | |
571 | } | |
572 | ||
573 | retval = tp3780I_InitializeBoardData(&pDrvData->rBDData); | |
574 | PRINTK_2(TRACE_MWAVE, | |
575 | "mwavedd::mwave_init, return from tp3780I_InitializeBoardData" | |
576 | " retval %x\n", | |
577 | retval); | |
578 | if (retval) { | |
579 | PRINTK_ERROR(KERN_ERR_MWAVE | |
580 | "mwavedd::mwave_init: Error:" | |
581 | " Failed to initialize board data\n"); | |
582 | goto cleanup_error; | |
583 | } | |
584 | pDrvData->bBDInitialized = TRUE; | |
585 | ||
586 | retval = tp3780I_CalcResources(&pDrvData->rBDData); | |
587 | PRINTK_2(TRACE_MWAVE, | |
588 | "mwavedd::mwave_init, return from tp3780I_CalcResources" | |
589 | " retval %x\n", | |
590 | retval); | |
591 | if (retval) { | |
592 | PRINTK_ERROR(KERN_ERR_MWAVE | |
593 | "mwavedd:mwave_init: Error:" | |
594 | " Failed to calculate resources\n"); | |
595 | goto cleanup_error; | |
596 | } | |
597 | ||
598 | retval = tp3780I_ClaimResources(&pDrvData->rBDData); | |
599 | PRINTK_2(TRACE_MWAVE, | |
600 | "mwavedd::mwave_init, return from tp3780I_ClaimResources" | |
601 | " retval %x\n", | |
602 | retval); | |
603 | if (retval) { | |
604 | PRINTK_ERROR(KERN_ERR_MWAVE | |
605 | "mwavedd:mwave_init: Error:" | |
606 | " Failed to claim resources\n"); | |
607 | goto cleanup_error; | |
608 | } | |
609 | pDrvData->bResourcesClaimed = TRUE; | |
610 | ||
611 | retval = tp3780I_EnableDSP(&pDrvData->rBDData); | |
612 | PRINTK_2(TRACE_MWAVE, | |
613 | "mwavedd::mwave_init, return from tp3780I_EnableDSP" | |
614 | " retval %x\n", | |
615 | retval); | |
616 | if (retval) { | |
617 | PRINTK_ERROR(KERN_ERR_MWAVE | |
618 | "mwavedd:mwave_init: Error:" | |
619 | " Failed to enable DSP\n"); | |
620 | goto cleanup_error; | |
621 | } | |
622 | pDrvData->bDSPEnabled = TRUE; | |
623 | ||
624 | if (misc_register(&mwave_misc_dev) < 0) { | |
625 | PRINTK_ERROR(KERN_ERR_MWAVE | |
626 | "mwavedd:mwave_init: Error:" | |
627 | " Failed to register misc device\n"); | |
628 | goto cleanup_error; | |
629 | } | |
630 | pDrvData->bMwaveDevRegistered = TRUE; | |
631 | ||
632 | pDrvData->sLine = register_serial_portandirq( | |
633 | pDrvData->rBDData.rDspSettings.usUartBaseIO, | |
634 | pDrvData->rBDData.rDspSettings.usUartIrq | |
635 | ); | |
636 | if (pDrvData->sLine < 0) { | |
637 | PRINTK_ERROR(KERN_ERR_MWAVE | |
638 | "mwavedd:mwave_init: Error:" | |
639 | " Failed to register serial driver\n"); | |
640 | goto cleanup_error; | |
641 | } | |
642 | /* uart is registered */ | |
643 | ||
644 | #if 0 | |
645 | /* sysfs */ | |
646 | memset(&mwave_device, 0, sizeof (struct device)); | |
647 | snprintf(mwave_device.bus_id, BUS_ID_SIZE, "mwave"); | |
648 | ||
649 | if (device_register(&mwave_device)) | |
650 | goto cleanup_error; | |
651 | pDrvData->device_registered = TRUE; | |
652 | for (i = 0; i < ARRAY_SIZE(mwave_dev_attrs); i++) { | |
653 | if(device_create_file(&mwave_device, mwave_dev_attrs[i])) { | |
654 | PRINTK_ERROR(KERN_ERR_MWAVE | |
655 | "mwavedd:mwave_init: Error:" | |
656 | " Failed to create sysfs file %s\n", | |
657 | mwave_dev_attrs[i]->attr.name); | |
658 | goto cleanup_error; | |
659 | } | |
660 | pDrvData->nr_registered_attrs++; | |
661 | } | |
662 | #endif | |
663 | ||
664 | /* SUCCESS! */ | |
665 | return 0; | |
666 | ||
667 | cleanup_error: | |
668 | PRINTK_ERROR(KERN_ERR_MWAVE | |
669 | "mwavedd::mwave_init: Error:" | |
670 | " Failed to initialize\n"); | |
671 | mwave_exit(); /* clean up */ | |
672 | ||
673 | return -EIO; | |
674 | } | |
675 | ||
676 | module_init(mwave_init); | |
677 |