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/mutex.h> 60 #include <linux/delay.h> 61 #include <linux/serial_8250.h> 62 #include <linux/nospec.h> 63 #include "smapi.h" 64 #include "mwavedd.h" 65 #include "3780i.h" 66 #include "tp3780i.h" 67 68 MODULE_DESCRIPTION("3780i Advanced Communications Processor (Mwave) driver"); 69 MODULE_AUTHOR("Mike Sullivan and Paul Schroeder"); 70 MODULE_LICENSE("GPL"); 71 72 /* 73 * These parameters support the setting of MWave resources. Note that no 74 * checks are made against other devices (ie. superio) for conflicts. 75 * We'll depend on users using the tpctl utility to do that for now 76 */ 77 static DEFINE_MUTEX(mwave_mutex); 78 int mwave_debug = 0; 79 int mwave_3780i_irq = 0; 80 int mwave_3780i_io = 0; 81 int mwave_uart_irq = 0; 82 int mwave_uart_io = 0; 83 module_param(mwave_debug, int, 0); 84 module_param_hw(mwave_3780i_irq, int, irq, 0); 85 module_param_hw(mwave_3780i_io, int, ioport, 0); 86 module_param_hw(mwave_uart_irq, int, irq, 0); 87 module_param_hw(mwave_uart_io, int, ioport, 0); 88 89 static int mwave_open(struct inode *inode, struct file *file); 90 static int mwave_close(struct inode *inode, struct file *file); 91 static long mwave_ioctl(struct file *filp, unsigned int iocmd, 92 unsigned long ioarg); 93 94 MWAVE_DEVICE_DATA mwave_s_mdd; 95 96 static int mwave_open(struct inode *inode, struct file *file) 97 { 98 unsigned int retval = 0; 99 100 PRINTK_3(TRACE_MWAVE, 101 "mwavedd::mwave_open, entry inode %p file %p\n", 102 inode, file); 103 PRINTK_2(TRACE_MWAVE, 104 "mwavedd::mwave_open, exit return retval %x\n", retval); 105 106 return retval; 107 } 108 109 static int mwave_close(struct inode *inode, struct file *file) 110 { 111 unsigned int retval = 0; 112 113 PRINTK_3(TRACE_MWAVE, 114 "mwavedd::mwave_close, entry inode %p file %p\n", 115 inode, file); 116 117 PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_close, exit retval %x\n", 118 retval); 119 120 return retval; 121 } 122 123 static long mwave_ioctl(struct file *file, unsigned int iocmd, 124 unsigned long ioarg) 125 { 126 unsigned int retval = 0; 127 pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd; 128 void __user *arg = (void __user *)ioarg; 129 130 PRINTK_4(TRACE_MWAVE, 131 "mwavedd::mwave_ioctl, entry file %p cmd %x arg %x\n", 132 file, iocmd, (int) ioarg); 133 134 switch (iocmd) { 135 136 case IOCTL_MW_RESET: 137 PRINTK_1(TRACE_MWAVE, 138 "mwavedd::mwave_ioctl, IOCTL_MW_RESET" 139 " calling tp3780I_ResetDSP\n"); 140 mutex_lock(&mwave_mutex); 141 retval = tp3780I_ResetDSP(&pDrvData->rBDData); 142 mutex_unlock(&mwave_mutex); 143 PRINTK_2(TRACE_MWAVE, 144 "mwavedd::mwave_ioctl, IOCTL_MW_RESET" 145 " retval %x from tp3780I_ResetDSP\n", 146 retval); 147 break; 148 149 case IOCTL_MW_RUN: 150 PRINTK_1(TRACE_MWAVE, 151 "mwavedd::mwave_ioctl, IOCTL_MW_RUN" 152 " calling tp3780I_StartDSP\n"); 153 mutex_lock(&mwave_mutex); 154 retval = tp3780I_StartDSP(&pDrvData->rBDData); 155 mutex_unlock(&mwave_mutex); 156 PRINTK_2(TRACE_MWAVE, 157 "mwavedd::mwave_ioctl, IOCTL_MW_RUN" 158 " retval %x from tp3780I_StartDSP\n", 159 retval); 160 break; 161 162 case IOCTL_MW_DSP_ABILITIES: { 163 MW_ABILITIES rAbilities; 164 165 PRINTK_1(TRACE_MWAVE, 166 "mwavedd::mwave_ioctl," 167 " IOCTL_MW_DSP_ABILITIES calling" 168 " tp3780I_QueryAbilities\n"); 169 mutex_lock(&mwave_mutex); 170 retval = tp3780I_QueryAbilities(&pDrvData->rBDData, 171 &rAbilities); 172 mutex_unlock(&mwave_mutex); 173 PRINTK_2(TRACE_MWAVE, 174 "mwavedd::mwave_ioctl, IOCTL_MW_DSP_ABILITIES" 175 " retval %x from tp3780I_QueryAbilities\n", 176 retval); 177 if (retval == 0) { 178 if( copy_to_user(arg, &rAbilities, 179 sizeof(MW_ABILITIES)) ) 180 return -EFAULT; 181 } 182 PRINTK_2(TRACE_MWAVE, 183 "mwavedd::mwave_ioctl, IOCTL_MW_DSP_ABILITIES" 184 " exit retval %x\n", 185 retval); 186 } 187 break; 188 189 case IOCTL_MW_READ_DATA: 190 case IOCTL_MW_READCLEAR_DATA: { 191 MW_READWRITE rReadData; 192 unsigned short __user *pusBuffer = NULL; 193 194 if( copy_from_user(&rReadData, arg, 195 sizeof(MW_READWRITE)) ) 196 return -EFAULT; 197 pusBuffer = (unsigned short __user *) (rReadData.pBuf); 198 199 PRINTK_4(TRACE_MWAVE, 200 "mwavedd::mwave_ioctl IOCTL_MW_READ_DATA," 201 " size %lx, ioarg %lx pusBuffer %p\n", 202 rReadData.ulDataLength, ioarg, pusBuffer); 203 mutex_lock(&mwave_mutex); 204 retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData, 205 iocmd, 206 pusBuffer, 207 rReadData.ulDataLength, 208 rReadData.usDspAddress); 209 mutex_unlock(&mwave_mutex); 210 } 211 break; 212 213 case IOCTL_MW_READ_INST: { 214 MW_READWRITE rReadData; 215 unsigned short __user *pusBuffer = NULL; 216 217 if( copy_from_user(&rReadData, arg, 218 sizeof(MW_READWRITE)) ) 219 return -EFAULT; 220 pusBuffer = (unsigned short __user *) (rReadData.pBuf); 221 222 PRINTK_4(TRACE_MWAVE, 223 "mwavedd::mwave_ioctl IOCTL_MW_READ_INST," 224 " size %lx, ioarg %lx pusBuffer %p\n", 225 rReadData.ulDataLength / 2, ioarg, 226 pusBuffer); 227 mutex_lock(&mwave_mutex); 228 retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData, 229 iocmd, pusBuffer, 230 rReadData.ulDataLength / 2, 231 rReadData.usDspAddress); 232 mutex_unlock(&mwave_mutex); 233 } 234 break; 235 236 case IOCTL_MW_WRITE_DATA: { 237 MW_READWRITE rWriteData; 238 unsigned short __user *pusBuffer = NULL; 239 240 if( copy_from_user(&rWriteData, arg, 241 sizeof(MW_READWRITE)) ) 242 return -EFAULT; 243 pusBuffer = (unsigned short __user *) (rWriteData.pBuf); 244 245 PRINTK_4(TRACE_MWAVE, 246 "mwavedd::mwave_ioctl IOCTL_MW_WRITE_DATA," 247 " size %lx, ioarg %lx pusBuffer %p\n", 248 rWriteData.ulDataLength, ioarg, 249 pusBuffer); 250 mutex_lock(&mwave_mutex); 251 retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData, 252 iocmd, pusBuffer, 253 rWriteData.ulDataLength, 254 rWriteData.usDspAddress); 255 mutex_unlock(&mwave_mutex); 256 } 257 break; 258 259 case IOCTL_MW_WRITE_INST: { 260 MW_READWRITE rWriteData; 261 unsigned short __user *pusBuffer = NULL; 262 263 if( copy_from_user(&rWriteData, arg, 264 sizeof(MW_READWRITE)) ) 265 return -EFAULT; 266 pusBuffer = (unsigned short __user *)(rWriteData.pBuf); 267 268 PRINTK_4(TRACE_MWAVE, 269 "mwavedd::mwave_ioctl IOCTL_MW_WRITE_INST," 270 " size %lx, ioarg %lx pusBuffer %p\n", 271 rWriteData.ulDataLength, ioarg, 272 pusBuffer); 273 mutex_lock(&mwave_mutex); 274 retval = tp3780I_ReadWriteDspIStore(&pDrvData->rBDData, 275 iocmd, pusBuffer, 276 rWriteData.ulDataLength, 277 rWriteData.usDspAddress); 278 mutex_unlock(&mwave_mutex); 279 } 280 break; 281 282 case IOCTL_MW_REGISTER_IPC: { 283 unsigned int ipcnum = (unsigned int) ioarg; 284 285 if (ipcnum >= ARRAY_SIZE(pDrvData->IPCs)) { 286 PRINTK_ERROR(KERN_ERR_MWAVE 287 "mwavedd::mwave_ioctl:" 288 " IOCTL_MW_REGISTER_IPC:" 289 " Error: Invalid ipcnum %x\n", 290 ipcnum); 291 return -EINVAL; 292 } 293 ipcnum = array_index_nospec(ipcnum, 294 ARRAY_SIZE(pDrvData->IPCs)); 295 PRINTK_3(TRACE_MWAVE, 296 "mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC" 297 " ipcnum %x entry usIntCount %x\n", 298 ipcnum, 299 pDrvData->IPCs[ipcnum].usIntCount); 300 301 mutex_lock(&mwave_mutex); 302 pDrvData->IPCs[ipcnum].bIsHere = false; 303 pDrvData->IPCs[ipcnum].bIsEnabled = true; 304 mutex_unlock(&mwave_mutex); 305 306 PRINTK_2(TRACE_MWAVE, 307 "mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC" 308 " ipcnum %x exit\n", 309 ipcnum); 310 } 311 break; 312 313 case IOCTL_MW_GET_IPC: { 314 unsigned int ipcnum = (unsigned int) ioarg; 315 316 if (ipcnum >= ARRAY_SIZE(pDrvData->IPCs)) { 317 PRINTK_ERROR(KERN_ERR_MWAVE 318 "mwavedd::mwave_ioctl:" 319 " IOCTL_MW_GET_IPC: Error:" 320 " Invalid ipcnum %x\n", ipcnum); 321 return -EINVAL; 322 } 323 ipcnum = array_index_nospec(ipcnum, 324 ARRAY_SIZE(pDrvData->IPCs)); 325 PRINTK_3(TRACE_MWAVE, 326 "mwavedd::mwave_ioctl IOCTL_MW_GET_IPC" 327 " ipcnum %x, usIntCount %x\n", 328 ipcnum, 329 pDrvData->IPCs[ipcnum].usIntCount); 330 331 mutex_lock(&mwave_mutex); 332 if (pDrvData->IPCs[ipcnum].bIsEnabled == true) { 333 DECLARE_WAITQUEUE(wait, current); 334 335 PRINTK_2(TRACE_MWAVE, 336 "mwavedd::mwave_ioctl, thread for" 337 " ipc %x going to sleep\n", 338 ipcnum); 339 add_wait_queue(&pDrvData->IPCs[ipcnum].ipc_wait_queue, &wait); 340 pDrvData->IPCs[ipcnum].bIsHere = true; 341 set_current_state(TASK_INTERRUPTIBLE); 342 /* check whether an event was signalled by */ 343 /* the interrupt handler while we were gone */ 344 if (pDrvData->IPCs[ipcnum].usIntCount == 1) { /* first int has occurred (race condition) */ 345 pDrvData->IPCs[ipcnum].usIntCount = 2; /* first int has been handled */ 346 PRINTK_2(TRACE_MWAVE, 347 "mwavedd::mwave_ioctl" 348 " IOCTL_MW_GET_IPC ipcnum %x" 349 " handling first int\n", 350 ipcnum); 351 } else { /* either 1st int has not yet occurred, or we have already handled the first int */ 352 schedule(); 353 if (pDrvData->IPCs[ipcnum].usIntCount == 1) { 354 pDrvData->IPCs[ipcnum].usIntCount = 2; 355 } 356 PRINTK_2(TRACE_MWAVE, 357 "mwavedd::mwave_ioctl" 358 " IOCTL_MW_GET_IPC ipcnum %x" 359 " woke up and returning to" 360 " application\n", 361 ipcnum); 362 } 363 pDrvData->IPCs[ipcnum].bIsHere = false; 364 remove_wait_queue(&pDrvData->IPCs[ipcnum].ipc_wait_queue, &wait); 365 set_current_state(TASK_RUNNING); 366 PRINTK_2(TRACE_MWAVE, 367 "mwavedd::mwave_ioctl IOCTL_MW_GET_IPC," 368 " returning thread for ipc %x" 369 " processing\n", 370 ipcnum); 371 } 372 mutex_unlock(&mwave_mutex); 373 } 374 break; 375 376 case IOCTL_MW_UNREGISTER_IPC: { 377 unsigned int ipcnum = (unsigned int) ioarg; 378 379 PRINTK_2(TRACE_MWAVE, 380 "mwavedd::mwave_ioctl IOCTL_MW_UNREGISTER_IPC" 381 " ipcnum %x\n", 382 ipcnum); 383 if (ipcnum >= ARRAY_SIZE(pDrvData->IPCs)) { 384 PRINTK_ERROR(KERN_ERR_MWAVE 385 "mwavedd::mwave_ioctl:" 386 " IOCTL_MW_UNREGISTER_IPC:" 387 " Error: Invalid ipcnum %x\n", 388 ipcnum); 389 return -EINVAL; 390 } 391 ipcnum = array_index_nospec(ipcnum, 392 ARRAY_SIZE(pDrvData->IPCs)); 393 mutex_lock(&mwave_mutex); 394 if (pDrvData->IPCs[ipcnum].bIsEnabled == true) { 395 pDrvData->IPCs[ipcnum].bIsEnabled = false; 396 if (pDrvData->IPCs[ipcnum].bIsHere == true) { 397 wake_up_interruptible(&pDrvData->IPCs[ipcnum].ipc_wait_queue); 398 } 399 } 400 mutex_unlock(&mwave_mutex); 401 } 402 break; 403 404 default: 405 return -ENOTTY; 406 } /* switch */ 407 408 PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_ioctl, exit retval %x\n", retval); 409 410 return retval; 411 } 412 413 414 static ssize_t mwave_read(struct file *file, char __user *buf, size_t count, 415 loff_t * ppos) 416 { 417 PRINTK_5(TRACE_MWAVE, 418 "mwavedd::mwave_read entry file %p, buf %p, count %zx ppos %p\n", 419 file, buf, count, ppos); 420 421 return -EINVAL; 422 } 423 424 425 static ssize_t mwave_write(struct file *file, const char __user *buf, 426 size_t count, loff_t * ppos) 427 { 428 PRINTK_5(TRACE_MWAVE, 429 "mwavedd::mwave_write entry file %p, buf %p," 430 " count %zx ppos %p\n", 431 file, buf, count, ppos); 432 433 return -EINVAL; 434 } 435 436 437 static int register_serial_portandirq(unsigned int port, int irq) 438 { 439 struct uart_8250_port uart; 440 441 switch ( port ) { 442 case 0x3f8: 443 case 0x2f8: 444 case 0x3e8: 445 case 0x2e8: 446 /* OK */ 447 break; 448 default: 449 PRINTK_ERROR(KERN_ERR_MWAVE 450 "mwavedd::register_serial_portandirq:" 451 " Error: Illegal port %x\n", port ); 452 return -1; 453 } /* switch */ 454 /* port is okay */ 455 456 switch ( irq ) { 457 case 3: 458 case 4: 459 case 5: 460 case 7: 461 /* OK */ 462 break; 463 default: 464 PRINTK_ERROR(KERN_ERR_MWAVE 465 "mwavedd::register_serial_portandirq:" 466 " Error: Illegal irq %x\n", irq ); 467 return -1; 468 } /* switch */ 469 /* irq is okay */ 470 471 memset(&uart, 0, sizeof(uart)); 472 473 uart.port.uartclk = 1843200; 474 uart.port.iobase = port; 475 uart.port.irq = irq; 476 uart.port.iotype = UPIO_PORT; 477 uart.port.flags = UPF_SHARE_IRQ; 478 return serial8250_register_8250_port(&uart); 479 } 480 481 482 static const struct file_operations mwave_fops = { 483 .owner = THIS_MODULE, 484 .read = mwave_read, 485 .write = mwave_write, 486 .unlocked_ioctl = mwave_ioctl, 487 .open = mwave_open, 488 .release = mwave_close, 489 .llseek = default_llseek, 490 }; 491 492 493 static struct miscdevice mwave_misc_dev = { MWAVE_MINOR, "mwave", &mwave_fops }; 494 495 #if 0 /* totally b0rked */ 496 /* 497 * sysfs support <paulsch@us.ibm.com> 498 */ 499 500 struct device mwave_device; 501 502 /* Prevent code redundancy, create a macro for mwave_show_* functions. */ 503 #define mwave_show_function(attr_name, format_string, field) \ 504 static ssize_t mwave_show_##attr_name(struct device *dev, struct device_attribute *attr, char *buf) \ 505 { \ 506 DSP_3780I_CONFIG_SETTINGS *pSettings = \ 507 &mwave_s_mdd.rBDData.rDspSettings; \ 508 return sprintf(buf, format_string, pSettings->field); \ 509 } 510 511 /* All of our attributes are read attributes. */ 512 #define mwave_dev_rd_attr(attr_name, format_string, field) \ 513 mwave_show_function(attr_name, format_string, field) \ 514 static DEVICE_ATTR(attr_name, S_IRUGO, mwave_show_##attr_name, NULL) 515 516 mwave_dev_rd_attr (3780i_dma, "%i\n", usDspDma); 517 mwave_dev_rd_attr (3780i_irq, "%i\n", usDspIrq); 518 mwave_dev_rd_attr (3780i_io, "%#.4x\n", usDspBaseIO); 519 mwave_dev_rd_attr (uart_irq, "%i\n", usUartIrq); 520 mwave_dev_rd_attr (uart_io, "%#.4x\n", usUartBaseIO); 521 522 static struct device_attribute * const mwave_dev_attrs[] = { 523 &dev_attr_3780i_dma, 524 &dev_attr_3780i_irq, 525 &dev_attr_3780i_io, 526 &dev_attr_uart_irq, 527 &dev_attr_uart_io, 528 }; 529 #endif 530 531 /* 532 * mwave_init is called on module load 533 * 534 * mwave_exit is called on module unload 535 * mwave_exit is also used to clean up after an aborted mwave_init 536 */ 537 static void mwave_exit(void) 538 { 539 pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd; 540 541 PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_exit entry\n"); 542 543 #if 0 544 for (i = 0; i < pDrvData->nr_registered_attrs; i++) 545 device_remove_file(&mwave_device, mwave_dev_attrs[i]); 546 pDrvData->nr_registered_attrs = 0; 547 548 if (pDrvData->device_registered) { 549 device_unregister(&mwave_device); 550 pDrvData->device_registered = false; 551 } 552 #endif 553 554 if ( pDrvData->sLine >= 0 ) { 555 serial8250_unregister_port(pDrvData->sLine); 556 } 557 if (pDrvData->bMwaveDevRegistered) { 558 misc_deregister(&mwave_misc_dev); 559 } 560 if (pDrvData->bDSPEnabled) { 561 tp3780I_DisableDSP(&pDrvData->rBDData); 562 } 563 if (pDrvData->bResourcesClaimed) { 564 tp3780I_ReleaseResources(&pDrvData->rBDData); 565 } 566 if (pDrvData->bBDInitialized) { 567 tp3780I_Cleanup(&pDrvData->rBDData); 568 } 569 570 PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_exit exit\n"); 571 } 572 573 module_exit(mwave_exit); 574 575 static int __init mwave_init(void) 576 { 577 int i; 578 int retval = 0; 579 pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd; 580 581 PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_init entry\n"); 582 583 memset(&mwave_s_mdd, 0, sizeof(MWAVE_DEVICE_DATA)); 584 585 pDrvData->bBDInitialized = false; 586 pDrvData->bResourcesClaimed = false; 587 pDrvData->bDSPEnabled = false; 588 pDrvData->bDSPReset = false; 589 pDrvData->bMwaveDevRegistered = false; 590 pDrvData->sLine = -1; 591 592 for (i = 0; i < ARRAY_SIZE(pDrvData->IPCs); i++) { 593 pDrvData->IPCs[i].bIsEnabled = false; 594 pDrvData->IPCs[i].bIsHere = false; 595 pDrvData->IPCs[i].usIntCount = 0; /* no ints received yet */ 596 init_waitqueue_head(&pDrvData->IPCs[i].ipc_wait_queue); 597 } 598 599 retval = tp3780I_InitializeBoardData(&pDrvData->rBDData); 600 PRINTK_2(TRACE_MWAVE, 601 "mwavedd::mwave_init, return from tp3780I_InitializeBoardData" 602 " retval %x\n", 603 retval); 604 if (retval) { 605 PRINTK_ERROR(KERN_ERR_MWAVE 606 "mwavedd::mwave_init: Error:" 607 " Failed to initialize board data\n"); 608 goto cleanup_error; 609 } 610 pDrvData->bBDInitialized = true; 611 612 retval = tp3780I_CalcResources(&pDrvData->rBDData); 613 PRINTK_2(TRACE_MWAVE, 614 "mwavedd::mwave_init, return from tp3780I_CalcResources" 615 " retval %x\n", 616 retval); 617 if (retval) { 618 PRINTK_ERROR(KERN_ERR_MWAVE 619 "mwavedd:mwave_init: Error:" 620 " Failed to calculate resources\n"); 621 goto cleanup_error; 622 } 623 624 retval = tp3780I_ClaimResources(&pDrvData->rBDData); 625 PRINTK_2(TRACE_MWAVE, 626 "mwavedd::mwave_init, return from tp3780I_ClaimResources" 627 " retval %x\n", 628 retval); 629 if (retval) { 630 PRINTK_ERROR(KERN_ERR_MWAVE 631 "mwavedd:mwave_init: Error:" 632 " Failed to claim resources\n"); 633 goto cleanup_error; 634 } 635 pDrvData->bResourcesClaimed = true; 636 637 retval = tp3780I_EnableDSP(&pDrvData->rBDData); 638 PRINTK_2(TRACE_MWAVE, 639 "mwavedd::mwave_init, return from tp3780I_EnableDSP" 640 " retval %x\n", 641 retval); 642 if (retval) { 643 PRINTK_ERROR(KERN_ERR_MWAVE 644 "mwavedd:mwave_init: Error:" 645 " Failed to enable DSP\n"); 646 goto cleanup_error; 647 } 648 pDrvData->bDSPEnabled = true; 649 650 if (misc_register(&mwave_misc_dev) < 0) { 651 PRINTK_ERROR(KERN_ERR_MWAVE 652 "mwavedd:mwave_init: Error:" 653 " Failed to register misc device\n"); 654 goto cleanup_error; 655 } 656 pDrvData->bMwaveDevRegistered = true; 657 658 pDrvData->sLine = register_serial_portandirq( 659 pDrvData->rBDData.rDspSettings.usUartBaseIO, 660 pDrvData->rBDData.rDspSettings.usUartIrq 661 ); 662 if (pDrvData->sLine < 0) { 663 PRINTK_ERROR(KERN_ERR_MWAVE 664 "mwavedd:mwave_init: Error:" 665 " Failed to register serial driver\n"); 666 goto cleanup_error; 667 } 668 /* uart is registered */ 669 670 #if 0 671 /* sysfs */ 672 memset(&mwave_device, 0, sizeof (struct device)); 673 dev_set_name(&mwave_device, "mwave"); 674 675 if (device_register(&mwave_device)) 676 goto cleanup_error; 677 pDrvData->device_registered = true; 678 for (i = 0; i < ARRAY_SIZE(mwave_dev_attrs); i++) { 679 if(device_create_file(&mwave_device, mwave_dev_attrs[i])) { 680 PRINTK_ERROR(KERN_ERR_MWAVE 681 "mwavedd:mwave_init: Error:" 682 " Failed to create sysfs file %s\n", 683 mwave_dev_attrs[i]->attr.name); 684 goto cleanup_error; 685 } 686 pDrvData->nr_registered_attrs++; 687 } 688 #endif 689 690 /* SUCCESS! */ 691 return 0; 692 693 cleanup_error: 694 PRINTK_ERROR(KERN_ERR_MWAVE 695 "mwavedd::mwave_init: Error:" 696 " Failed to initialize\n"); 697 mwave_exit(); /* clean up */ 698 699 return -EIO; 700 } 701 702 module_init(mwave_init); 703 704