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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 | /* * * smapi.c -- SMAPI interface routines * * * Written By: Mike Sullivan IBM Corporation * * Copyright (C) 1999 IBM Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * NO WARRANTY * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is * solely responsible for determining the appropriateness of using and * distributing the Program and assumes all risks associated with its * exercise of rights under this Agreement, including but not limited to * the risks and costs of program errors, damage to or loss of data, * programs or equipment, and unavailability or interruption of operations. * * DISCLAIMER OF LIABILITY * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * * 10/23/2000 - Alpha Release * First release to the public */ #include <linux/version.h> #include <linux/kernel.h> #include <linux/mc146818rtc.h> /* CMOS defines */ #include "smapi.h" #include "mwavedd.h" static unsigned short g_usSmapiPort = 0; int smapi_request(unsigned short inBX, unsigned short inCX, unsigned short inDI, unsigned short inSI, unsigned short *outAX, unsigned short *outBX, unsigned short *outCX, unsigned short *outDX, unsigned short *outDI, unsigned short *outSI) { unsigned short myoutAX = 2, *pmyoutAX = &myoutAX; unsigned short myoutBX = 3, *pmyoutBX = &myoutBX; unsigned short myoutCX = 4, *pmyoutCX = &myoutCX; unsigned short myoutDX = 5, *pmyoutDX = &myoutDX; unsigned short myoutDI = 6, *pmyoutDI = &myoutDI; unsigned short myoutSI = 7, *pmyoutSI = &myoutSI; unsigned short usSmapiOK = -EIO, *pusSmapiOK = &usSmapiOK; unsigned int inBXCX = (inBX << 16) | inCX; unsigned int inDISI = (inDI << 16) | inSI; int retval = 0; PRINTK_5(TRACE_SMAPI, "inBX %x inCX %x inDI %x inSI %x\n", inBX, inCX, inDI, inSI); __asm__ __volatile__("movw $0x5380,%%ax\n\t" "movl %7,%%ebx\n\t" "shrl $16, %%ebx\n\t" "movw %7,%%cx\n\t" "movl %8,%%edi\n\t" "shrl $16,%%edi\n\t" "movw %8,%%si\n\t" "movw %9,%%dx\n\t" "out %%al,%%dx\n\t" "out %%al,$0x4F\n\t" "cmpb $0x53,%%ah\n\t" "je 2f\n\t" "1:\n\t" "orb %%ah,%%ah\n\t" "jnz 2f\n\t" "movw %%ax,%0\n\t" "movw %%bx,%1\n\t" "movw %%cx,%2\n\t" "movw %%dx,%3\n\t" "movw %%di,%4\n\t" "movw %%si,%5\n\t" "movw $1,%6\n\t" "2:\n\t":"=m"(*(unsigned short *) pmyoutAX), "=m"(*(unsigned short *) pmyoutBX), "=m"(*(unsigned short *) pmyoutCX), "=m"(*(unsigned short *) pmyoutDX), "=m"(*(unsigned short *) pmyoutDI), "=m"(*(unsigned short *) pmyoutSI), "=m"(*(unsigned short *) pusSmapiOK) :"m"(inBXCX), "m"(inDISI), "m"(g_usSmapiPort) :"%eax", "%ebx", "%ecx", "%edx", "%edi", "%esi"); PRINTK_8(TRACE_SMAPI, "myoutAX %x myoutBX %x myoutCX %x myoutDX %x myoutDI %x myoutSI %x usSmapiOK %x\n", myoutAX, myoutBX, myoutCX, myoutDX, myoutDI, myoutSI, usSmapiOK); *outAX = myoutAX; *outBX = myoutBX; *outCX = myoutCX; *outDX = myoutDX; *outDI = myoutDI; *outSI = myoutSI; retval = (usSmapiOK == 1) ? 0 : -EIO; PRINTK_2(TRACE_SMAPI, "smapi::smapi_request exit retval %x\n", retval); return retval; } int smapi_query_DSP_cfg(SMAPI_DSP_SETTINGS * pSettings) { int bRC = -EIO; unsigned short usAX, usBX, usCX, usDX, usDI, usSI; unsigned short ausDspBases[] = { 0x0030, 0x4E30, 0x8E30, 0xCE30, 0x0130, 0x0350, 0x0070, 0x0DB0 }; unsigned short ausUartBases[] = { 0x03F8, 0x02F8, 0x03E8, 0x02E8 }; unsigned short numDspBases = 8; unsigned short numUartBases = 4; PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg entry\n"); bRC = smapi_request(0x1802, 0x0000, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) { PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Error: Could not get DSP Settings. Aborting.\n"); return bRC; } PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg, smapi_request OK\n"); pSettings->bDSPPresent = ((usBX & 0x0100) != 0); pSettings->bDSPEnabled = ((usCX & 0x0001) != 0); pSettings->usDspIRQ = usSI & 0x00FF; pSettings->usDspDMA = (usSI & 0xFF00) >> 8; if ((usDI & 0x00FF) < numDspBases) { pSettings->usDspBaseIO = ausDspBases[usDI & 0x00FF]; } else { pSettings->usDspBaseIO = 0; } PRINTK_6(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg get DSP Settings bDSPPresent %x bDSPEnabled %x usDspIRQ %x usDspDMA %x usDspBaseIO %x\n", pSettings->bDSPPresent, pSettings->bDSPEnabled, pSettings->usDspIRQ, pSettings->usDspDMA, pSettings->usDspBaseIO); /* check for illegal values */ if ( pSettings->usDspBaseIO == 0 ) PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: DSP base I/O address is 0\n"); if ( pSettings->usDspIRQ == 0 ) PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: DSP IRQ line is 0\n"); bRC = smapi_request(0x1804, 0x0000, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) { PRINTK_ERROR("smapi::smapi_query_DSP_cfg: Error: Could not get DSP modem settings. Aborting.\n"); return bRC; } PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg, smapi_request OK\n"); pSettings->bModemEnabled = ((usCX & 0x0001) != 0); pSettings->usUartIRQ = usSI & 0x000F; if (((usSI & 0xFF00) >> 8) < numUartBases) { pSettings->usUartBaseIO = ausUartBases[(usSI & 0xFF00) >> 8]; } else { pSettings->usUartBaseIO = 0; } PRINTK_4(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg get DSP modem settings bModemEnabled %x usUartIRQ %x usUartBaseIO %x\n", pSettings->bModemEnabled, pSettings->usUartIRQ, pSettings->usUartBaseIO); /* check for illegal values */ if ( pSettings->usUartBaseIO == 0 ) PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: UART base I/O address is 0\n"); if ( pSettings->usUartIRQ == 0 ) PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: UART IRQ line is 0\n"); PRINTK_2(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg exit bRC %x\n", bRC); return bRC; } int smapi_set_DSP_cfg(void) { int bRC = -EIO; int i; unsigned short usAX, usBX, usCX, usDX, usDI, usSI; unsigned short ausDspBases[] = { 0x0030, 0x4E30, 0x8E30, 0xCE30, 0x0130, 0x0350, 0x0070, 0x0DB0 }; unsigned short ausUartBases[] = { 0x03F8, 0x02F8, 0x03E8, 0x02E8 }; unsigned short ausDspIrqs[] = { 5, 7, 10, 11, 15 }; unsigned short ausUartIrqs[] = { 3, 4 }; unsigned short numDspBases = 8; unsigned short numUartBases = 4; unsigned short numDspIrqs = 5; unsigned short numUartIrqs = 2; unsigned short dspio_index = 0, uartio_index = 0; PRINTK_5(TRACE_SMAPI, "smapi::smapi_set_DSP_cfg entry mwave_3780i_irq %x mwave_3780i_io %x mwave_uart_irq %x mwave_uart_io %x\n", mwave_3780i_irq, mwave_3780i_io, mwave_uart_irq, mwave_uart_io); if (mwave_3780i_io) { for (i = 0; i < numDspBases; i++) { if (mwave_3780i_io == ausDspBases[i]) break; } if (i == numDspBases) { PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_3780i_io address %x. Aborting.\n", mwave_3780i_io); return bRC; } dspio_index = i; } if (mwave_3780i_irq) { for (i = 0; i < numDspIrqs; i++) { if (mwave_3780i_irq == ausDspIrqs[i]) break; } if (i == numDspIrqs) { PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_3780i_irq %x. Aborting.\n", mwave_3780i_irq); return bRC; } } if (mwave_uart_io) { for (i = 0; i < numUartBases; i++) { if (mwave_uart_io == ausUartBases[i]) break; } if (i == numUartBases) { PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_uart_io address %x. Aborting.\n", mwave_uart_io); return bRC; } uartio_index = i; } if (mwave_uart_irq) { for (i = 0; i < numUartIrqs; i++) { if (mwave_uart_irq == ausUartIrqs[i]) break; } if (i == numUartIrqs) { PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_uart_irq %x. Aborting.\n", mwave_uart_irq); return bRC; } } if (mwave_uart_irq || mwave_uart_io) { /* Check serial port A */ bRC = smapi_request(0x1402, 0x0000, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; /* bRC == 0 */ if (usBX & 0x0100) { /* serial port A is present */ if (usCX & 1) { /* serial port is enabled */ if ((usSI & 0xFF) == mwave_uart_irq) { #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES PRINTK_ERROR(KERN_ERR_MWAVE #else PRINTK_3(TRACE_SMAPI, #endif "smapi::smapi_set_DSP_cfg: Serial port A irq %x conflicts with mwave_uart_irq %x\n", usSI, mwave_uart_irq); #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES PRINTK_1(TRACE_SMAPI, "smapi::smapi_set_DSP_cfg Disabling conflicting serial port\n"); bRC = smapi_request(0x1403, 0x0100, 0, usSI, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; bRC = smapi_request(0x1402, 0x0000, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; #else goto exit_conflict; #endif } else { if ((usSI >> 8) == uartio_index) { #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES PRINTK_ERROR(KERN_ERR_MWAVE #else PRINTK_3(TRACE_SMAPI, #endif "smapi::smapi_set_DSP_cfg: Serial port A base I/O address index %x conflicts with uartio_index %x\n", usSI >> 8, uartio_index); #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES PRINTK_1(TRACE_SMAPI, "smapi::smapi_set_DSP_cfg Disabling conflicting serial port\n"); bRC = smapi_request (0x1403, 0x0100, 0, usSI, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; bRC = smapi_request (0x1402, 0x0000, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; #else goto exit_conflict; #endif } } } } /* Check serial port B */ bRC = smapi_request(0x1404, 0x0000, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; /* bRC == 0 */ if (usBX & 0x0100) { /* serial port B is present */ if (usCX & 1) { /* serial port is enabled */ if ((usSI & 0xFF) == mwave_uart_irq) { #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES PRINTK_ERROR(KERN_ERR_MWAVE #else PRINTK_3(TRACE_SMAPI, #endif "smapi::smapi_set_DSP_cfg: Serial port B irq %x conflicts with mwave_uart_irq %x\n", usSI, mwave_uart_irq); #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES PRINTK_1(TRACE_SMAPI, "smapi::smapi_set_DSP_cfg Disabling conflicting serial port\n"); bRC = smapi_request(0x1405, 0x0100, 0, usSI, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; bRC = smapi_request(0x1404, 0x0000, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; #else goto exit_conflict; #endif } else { if ((usSI >> 8) == uartio_index) { #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES PRINTK_ERROR(KERN_ERR_MWAVE #else PRINTK_3(TRACE_SMAPI, #endif "smapi::smapi_set_DSP_cfg: Serial port B base I/O address index %x conflicts with uartio_index %x\n", usSI >> 8, uartio_index); #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES PRINTK_1 (TRACE_SMAPI, "smapi::smapi_set_DSP_cfg Disabling conflicting serial port\n"); bRC = smapi_request (0x1405, 0x0100, 0, usSI, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; bRC = smapi_request (0x1404, 0x0000, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; #else goto exit_conflict; #endif } } } } /* Check IR port */ bRC = smapi_request(0x1700, 0x0000, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; bRC = smapi_request(0x1704, 0x0000, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; /* bRC == 0 */ if ((usCX & 0xff) == mwave_uart_irq) { /* serial port is enabled */ #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES PRINTK_ERROR(KERN_ERR_MWAVE #else PRINTK_3(TRACE_SMAPI, #endif "smapi::smapi_set_DSP_cfg: IR port irq %x conflicts with mwave_uart_irq %x\n", usSI, mwave_uart_irq); #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES PRINTK_1(TRACE_SMAPI, "smapi::smapi_set_DSP_cfg Disabling conflicting IR port\n"); bRC = smapi_request(0x1701, 0x0100, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; bRC = smapi_request(0x1700, 0, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; bRC = smapi_request(0x1705, 0x01ff, 0, usSI, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; bRC = smapi_request(0x1704, 0x0000, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; #else goto exit_conflict; #endif } else { if ((usSI & 0xff) == uartio_index) { #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES PRINTK_ERROR(KERN_ERR_MWAVE #else PRINTK_3(TRACE_SMAPI, #endif "smapi::smapi_set_DSP_cfg: IR port base I/O address index %x conflicts with uartio_index %x\n", usSI & 0xff, uartio_index); #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES PRINTK_1(TRACE_SMAPI, "smapi::smapi_set_DSP_cfg Disabling conflicting IR port\n"); bRC = smapi_request(0x1701, 0x0100, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; bRC = smapi_request(0x1700, 0, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; bRC = smapi_request(0x1705, 0x01ff, 0, usSI, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; bRC = smapi_request(0x1704, 0x0000, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; #else goto exit_conflict; #endif } } } bRC = smapi_request(0x1802, 0x0000, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; if (mwave_3780i_io) { usDI = dspio_index;; } if (mwave_3780i_irq) { usSI = (usSI & 0xff00) | mwave_3780i_irq; } bRC = smapi_request(0x1803, 0x0101, usDI, usSI, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; bRC = smapi_request(0x1804, 0x0000, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; if (mwave_uart_io) { usSI = (usSI & 0x00ff) | (uartio_index << 8); } if (mwave_uart_irq) { usSI = (usSI & 0xff00) | mwave_uart_irq; } bRC = smapi_request(0x1805, 0x0101, 0, usSI, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; bRC = smapi_request(0x1802, 0x0000, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; bRC = smapi_request(0x1804, 0x0000, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC) goto exit_smapi_request_error; /* normal exit: */ PRINTK_1(TRACE_SMAPI, "smapi::smapi_set_DSP_cfg exit\n"); return 0; exit_conflict: /* Message has already been printed */ return -EIO; exit_smapi_request_error: PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg exit on smapi_request error bRC %x\n", bRC); return bRC; } int smapi_set_DSP_power_state(BOOLEAN bOn) { int bRC = -EIO; unsigned short usAX, usBX, usCX, usDX, usDI, usSI; unsigned short usPowerFunction; PRINTK_2(TRACE_SMAPI, "smapi::smapi_set_DSP_power_state entry bOn %x\n", bOn); usPowerFunction = (bOn) ? 1 : 0; bRC = smapi_request(0x4901, 0x0000, 0, usPowerFunction, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); PRINTK_2(TRACE_SMAPI, "smapi::smapi_set_DSP_power_state exit bRC %x\n", bRC); return bRC; } int SmapiQuerySystemID(void) { int bRC = -EIO; unsigned short usAX = 0xffff, usBX = 0xffff, usCX = 0xffff, usDX = 0xffff, usDI = 0xffff, usSI = 0xffff; printk("smapi::SmapiQUerySystemID entry\n"); bRC = smapi_request(0x0000, 0, 0, 0, &usAX, &usBX, &usCX, &usDX, &usDI, &usSI); if (bRC == 0) { printk("AX=%x, BX=%x, CX=%x, DX=%x, DI=%x, SI=%x\n", usAX, usBX, usCX, usDX, usDI, usSI); } else { printk("smapi::SmapiQuerySystemID smapi_request error\n"); } return bRC; } int smapi_init(void) { int retval = -EIO; unsigned short usSmapiID = 0; unsigned long flags; PRINTK_1(TRACE_SMAPI, "smapi::smapi_init entry\n"); spin_lock_irqsave(&rtc_lock, flags); usSmapiID = CMOS_READ(0x7C); usSmapiID |= (CMOS_READ(0x7D) << 8); spin_unlock_irqrestore(&rtc_lock, flags); PRINTK_2(TRACE_SMAPI, "smapi::smapi_init usSmapiID %x\n", usSmapiID); if (usSmapiID == 0x5349) { spin_lock_irqsave(&rtc_lock, flags); g_usSmapiPort = CMOS_READ(0x7E); g_usSmapiPort |= (CMOS_READ(0x7F) << 8); spin_unlock_irqrestore(&rtc_lock, flags); if (g_usSmapiPort == 0) { PRINTK_ERROR("smapi::smapi_init, ERROR unable to read from SMAPI port\n"); } else { PRINTK_2(TRACE_SMAPI, "smapi::smapi_init, exit TRUE g_usSmapiPort %x\n", g_usSmapiPort); retval = 0; //SmapiQuerySystemID(); } } else { PRINTK_ERROR("smapi::smapi_init, ERROR invalid usSmapiID\n"); retval = -ENXIO; } return retval; } |