1 /** 2 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved. 3 * 4 * This source file is released under GPL v2 license (no other versions). 5 * See the COPYING file included in the main directory of this source 6 * distribution for the license terms and conditions. 7 * 8 * @File ctdaio.c 9 * 10 * @Brief 11 * This file contains the implementation of Digital Audio Input Output 12 * resource management object. 13 * 14 * @Author Liu Chun 15 * @Date May 23 2008 16 * 17 */ 18 19 #include "ctdaio.h" 20 #include "cthardware.h" 21 #include "ctimap.h" 22 #include <linux/slab.h> 23 #include <linux/kernel.h> 24 25 #define DAIO_OUT_MAX SPDIFOO 26 27 struct daio_usage { 28 unsigned short data; 29 }; 30 31 struct daio_rsc_idx { 32 unsigned short left; 33 unsigned short right; 34 }; 35 36 static struct daio_rsc_idx idx_20k1[NUM_DAIOTYP] = { 37 [LINEO1] = {.left = 0x00, .right = 0x01}, 38 [LINEO2] = {.left = 0x18, .right = 0x19}, 39 [LINEO3] = {.left = 0x08, .right = 0x09}, 40 [LINEO4] = {.left = 0x10, .right = 0x11}, 41 [LINEIM] = {.left = 0x1b5, .right = 0x1bd}, 42 [SPDIFOO] = {.left = 0x20, .right = 0x21}, 43 [SPDIFIO] = {.left = 0x15, .right = 0x1d}, 44 [SPDIFI1] = {.left = 0x95, .right = 0x9d}, 45 }; 46 47 static struct daio_rsc_idx idx_20k2[NUM_DAIOTYP] = { 48 [LINEO1] = {.left = 0x40, .right = 0x41}, 49 [LINEO2] = {.left = 0x60, .right = 0x61}, 50 [LINEO3] = {.left = 0x50, .right = 0x51}, 51 [LINEO4] = {.left = 0x70, .right = 0x71}, 52 [LINEIM] = {.left = 0x45, .right = 0xc5}, 53 [MIC] = {.left = 0x55, .right = 0xd5}, 54 [SPDIFOO] = {.left = 0x00, .right = 0x01}, 55 [SPDIFIO] = {.left = 0x05, .right = 0x85}, 56 }; 57 58 static int daio_master(struct rsc *rsc) 59 { 60 /* Actually, this is not the resource index of DAIO. 61 * For DAO, it is the input mapper index. And, for DAI, 62 * it is the output time-slot index. */ 63 return rsc->conj = rsc->idx; 64 } 65 66 static int daio_index(const struct rsc *rsc) 67 { 68 return rsc->conj; 69 } 70 71 static int daio_out_next_conj(struct rsc *rsc) 72 { 73 return rsc->conj += 2; 74 } 75 76 static int daio_in_next_conj_20k1(struct rsc *rsc) 77 { 78 return rsc->conj += 0x200; 79 } 80 81 static int daio_in_next_conj_20k2(struct rsc *rsc) 82 { 83 return rsc->conj += 0x100; 84 } 85 86 static struct rsc_ops daio_out_rsc_ops = { 87 .master = daio_master, 88 .next_conj = daio_out_next_conj, 89 .index = daio_index, 90 .output_slot = NULL, 91 }; 92 93 static struct rsc_ops daio_in_rsc_ops_20k1 = { 94 .master = daio_master, 95 .next_conj = daio_in_next_conj_20k1, 96 .index = NULL, 97 .output_slot = daio_index, 98 }; 99 100 static struct rsc_ops daio_in_rsc_ops_20k2 = { 101 .master = daio_master, 102 .next_conj = daio_in_next_conj_20k2, 103 .index = NULL, 104 .output_slot = daio_index, 105 }; 106 107 static unsigned int daio_device_index(enum DAIOTYP type, struct hw *hw) 108 { 109 switch (hw->chip_type) { 110 case ATC20K1: 111 switch (type) { 112 case SPDIFOO: return 0; 113 case SPDIFIO: return 0; 114 case SPDIFI1: return 1; 115 case LINEO1: return 4; 116 case LINEO2: return 7; 117 case LINEO3: return 5; 118 case LINEO4: return 6; 119 case LINEIM: return 7; 120 default: return -EINVAL; 121 } 122 case ATC20K2: 123 switch (type) { 124 case SPDIFOO: return 0; 125 case SPDIFIO: return 0; 126 case LINEO1: return 4; 127 case LINEO2: return 7; 128 case LINEO3: return 5; 129 case LINEO4: return 6; 130 case LINEIM: return 4; 131 case MIC: return 5; 132 default: return -EINVAL; 133 } 134 default: 135 return -EINVAL; 136 } 137 } 138 139 static int dao_rsc_reinit(struct dao *dao, const struct dao_desc *desc); 140 141 static int dao_spdif_get_spos(struct dao *dao, unsigned int *spos) 142 { 143 ((struct hw *)dao->hw)->dao_get_spos(dao->ctrl_blk, spos); 144 return 0; 145 } 146 147 static int dao_spdif_set_spos(struct dao *dao, unsigned int spos) 148 { 149 ((struct hw *)dao->hw)->dao_set_spos(dao->ctrl_blk, spos); 150 return 0; 151 } 152 153 static int dao_commit_write(struct dao *dao) 154 { 155 ((struct hw *)dao->hw)->dao_commit_write(dao->hw, 156 daio_device_index(dao->daio.type, dao->hw), dao->ctrl_blk); 157 return 0; 158 } 159 160 static int dao_set_left_input(struct dao *dao, struct rsc *input) 161 { 162 struct imapper *entry; 163 struct daio *daio = &dao->daio; 164 int i; 165 166 entry = kzalloc((sizeof(*entry) * daio->rscl.msr), GFP_KERNEL); 167 if (!entry) 168 return -ENOMEM; 169 170 dao->ops->clear_left_input(dao); 171 /* Program master and conjugate resources */ 172 input->ops->master(input); 173 daio->rscl.ops->master(&daio->rscl); 174 for (i = 0; i < daio->rscl.msr; i++, entry++) { 175 entry->slot = input->ops->output_slot(input); 176 entry->user = entry->addr = daio->rscl.ops->index(&daio->rscl); 177 dao->mgr->imap_add(dao->mgr, entry); 178 dao->imappers[i] = entry; 179 180 input->ops->next_conj(input); 181 daio->rscl.ops->next_conj(&daio->rscl); 182 } 183 input->ops->master(input); 184 daio->rscl.ops->master(&daio->rscl); 185 186 return 0; 187 } 188 189 static int dao_set_right_input(struct dao *dao, struct rsc *input) 190 { 191 struct imapper *entry; 192 struct daio *daio = &dao->daio; 193 int i; 194 195 entry = kzalloc((sizeof(*entry) * daio->rscr.msr), GFP_KERNEL); 196 if (!entry) 197 return -ENOMEM; 198 199 dao->ops->clear_right_input(dao); 200 /* Program master and conjugate resources */ 201 input->ops->master(input); 202 daio->rscr.ops->master(&daio->rscr); 203 for (i = 0; i < daio->rscr.msr; i++, entry++) { 204 entry->slot = input->ops->output_slot(input); 205 entry->user = entry->addr = daio->rscr.ops->index(&daio->rscr); 206 dao->mgr->imap_add(dao->mgr, entry); 207 dao->imappers[daio->rscl.msr + i] = entry; 208 209 input->ops->next_conj(input); 210 daio->rscr.ops->next_conj(&daio->rscr); 211 } 212 input->ops->master(input); 213 daio->rscr.ops->master(&daio->rscr); 214 215 return 0; 216 } 217 218 static int dao_clear_left_input(struct dao *dao) 219 { 220 struct imapper *entry; 221 struct daio *daio = &dao->daio; 222 int i; 223 224 if (!dao->imappers[0]) 225 return 0; 226 227 entry = dao->imappers[0]; 228 dao->mgr->imap_delete(dao->mgr, entry); 229 /* Program conjugate resources */ 230 for (i = 1; i < daio->rscl.msr; i++) { 231 entry = dao->imappers[i]; 232 dao->mgr->imap_delete(dao->mgr, entry); 233 dao->imappers[i] = NULL; 234 } 235 236 kfree(dao->imappers[0]); 237 dao->imappers[0] = NULL; 238 239 return 0; 240 } 241 242 static int dao_clear_right_input(struct dao *dao) 243 { 244 struct imapper *entry; 245 struct daio *daio = &dao->daio; 246 int i; 247 248 if (!dao->imappers[daio->rscl.msr]) 249 return 0; 250 251 entry = dao->imappers[daio->rscl.msr]; 252 dao->mgr->imap_delete(dao->mgr, entry); 253 /* Program conjugate resources */ 254 for (i = 1; i < daio->rscr.msr; i++) { 255 entry = dao->imappers[daio->rscl.msr + i]; 256 dao->mgr->imap_delete(dao->mgr, entry); 257 dao->imappers[daio->rscl.msr + i] = NULL; 258 } 259 260 kfree(dao->imappers[daio->rscl.msr]); 261 dao->imappers[daio->rscl.msr] = NULL; 262 263 return 0; 264 } 265 266 static struct dao_rsc_ops dao_ops = { 267 .set_spos = dao_spdif_set_spos, 268 .commit_write = dao_commit_write, 269 .get_spos = dao_spdif_get_spos, 270 .reinit = dao_rsc_reinit, 271 .set_left_input = dao_set_left_input, 272 .set_right_input = dao_set_right_input, 273 .clear_left_input = dao_clear_left_input, 274 .clear_right_input = dao_clear_right_input, 275 }; 276 277 static int dai_set_srt_srcl(struct dai *dai, struct rsc *src) 278 { 279 src->ops->master(src); 280 ((struct hw *)dai->hw)->dai_srt_set_srcm(dai->ctrl_blk, 281 src->ops->index(src)); 282 return 0; 283 } 284 285 static int dai_set_srt_srcr(struct dai *dai, struct rsc *src) 286 { 287 src->ops->master(src); 288 ((struct hw *)dai->hw)->dai_srt_set_srco(dai->ctrl_blk, 289 src->ops->index(src)); 290 return 0; 291 } 292 293 static int dai_set_srt_msr(struct dai *dai, unsigned int msr) 294 { 295 unsigned int rsr; 296 297 for (rsr = 0; msr > 1; msr >>= 1) 298 rsr++; 299 300 ((struct hw *)dai->hw)->dai_srt_set_rsr(dai->ctrl_blk, rsr); 301 return 0; 302 } 303 304 static int dai_set_enb_src(struct dai *dai, unsigned int enb) 305 { 306 ((struct hw *)dai->hw)->dai_srt_set_ec(dai->ctrl_blk, enb); 307 return 0; 308 } 309 310 static int dai_set_enb_srt(struct dai *dai, unsigned int enb) 311 { 312 ((struct hw *)dai->hw)->dai_srt_set_et(dai->ctrl_blk, enb); 313 return 0; 314 } 315 316 static int dai_commit_write(struct dai *dai) 317 { 318 ((struct hw *)dai->hw)->dai_commit_write(dai->hw, 319 daio_device_index(dai->daio.type, dai->hw), dai->ctrl_blk); 320 return 0; 321 } 322 323 static struct dai_rsc_ops dai_ops = { 324 .set_srt_srcl = dai_set_srt_srcl, 325 .set_srt_srcr = dai_set_srt_srcr, 326 .set_srt_msr = dai_set_srt_msr, 327 .set_enb_src = dai_set_enb_src, 328 .set_enb_srt = dai_set_enb_srt, 329 .commit_write = dai_commit_write, 330 }; 331 332 static int daio_rsc_init(struct daio *daio, 333 const struct daio_desc *desc, 334 void *hw) 335 { 336 int err; 337 unsigned int idx_l, idx_r; 338 339 switch (((struct hw *)hw)->chip_type) { 340 case ATC20K1: 341 idx_l = idx_20k1[desc->type].left; 342 idx_r = idx_20k1[desc->type].right; 343 break; 344 case ATC20K2: 345 idx_l = idx_20k2[desc->type].left; 346 idx_r = idx_20k2[desc->type].right; 347 break; 348 default: 349 return -EINVAL; 350 } 351 err = rsc_init(&daio->rscl, idx_l, DAIO, desc->msr, hw); 352 if (err) 353 return err; 354 355 err = rsc_init(&daio->rscr, idx_r, DAIO, desc->msr, hw); 356 if (err) 357 goto error1; 358 359 /* Set daio->rscl/r->ops to daio specific ones */ 360 if (desc->type <= DAIO_OUT_MAX) { 361 daio->rscl.ops = daio->rscr.ops = &daio_out_rsc_ops; 362 } else { 363 switch (((struct hw *)hw)->chip_type) { 364 case ATC20K1: 365 daio->rscl.ops = daio->rscr.ops = &daio_in_rsc_ops_20k1; 366 break; 367 case ATC20K2: 368 daio->rscl.ops = daio->rscr.ops = &daio_in_rsc_ops_20k2; 369 break; 370 default: 371 break; 372 } 373 } 374 daio->type = desc->type; 375 376 return 0; 377 378 error1: 379 rsc_uninit(&daio->rscl); 380 return err; 381 } 382 383 static int daio_rsc_uninit(struct daio *daio) 384 { 385 rsc_uninit(&daio->rscl); 386 rsc_uninit(&daio->rscr); 387 388 return 0; 389 } 390 391 static int dao_rsc_init(struct dao *dao, 392 const struct daio_desc *desc, 393 struct daio_mgr *mgr) 394 { 395 struct hw *hw = mgr->mgr.hw; 396 unsigned int conf; 397 int err; 398 399 err = daio_rsc_init(&dao->daio, desc, mgr->mgr.hw); 400 if (err) 401 return err; 402 403 dao->imappers = kzalloc(sizeof(void *)*desc->msr*2, GFP_KERNEL); 404 if (!dao->imappers) { 405 err = -ENOMEM; 406 goto error1; 407 } 408 dao->ops = &dao_ops; 409 dao->mgr = mgr; 410 dao->hw = hw; 411 err = hw->dao_get_ctrl_blk(&dao->ctrl_blk); 412 if (err) 413 goto error2; 414 415 hw->daio_mgr_dsb_dao(mgr->mgr.ctrl_blk, 416 daio_device_index(dao->daio.type, hw)); 417 hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk); 418 419 conf = (desc->msr & 0x7) | (desc->passthru << 3); 420 hw->daio_mgr_dao_init(mgr->mgr.ctrl_blk, 421 daio_device_index(dao->daio.type, hw), conf); 422 hw->daio_mgr_enb_dao(mgr->mgr.ctrl_blk, 423 daio_device_index(dao->daio.type, hw)); 424 hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk); 425 426 return 0; 427 428 error2: 429 kfree(dao->imappers); 430 dao->imappers = NULL; 431 error1: 432 daio_rsc_uninit(&dao->daio); 433 return err; 434 } 435 436 static int dao_rsc_uninit(struct dao *dao) 437 { 438 if (dao->imappers) { 439 if (dao->imappers[0]) 440 dao_clear_left_input(dao); 441 442 if (dao->imappers[dao->daio.rscl.msr]) 443 dao_clear_right_input(dao); 444 445 kfree(dao->imappers); 446 dao->imappers = NULL; 447 } 448 ((struct hw *)dao->hw)->dao_put_ctrl_blk(dao->ctrl_blk); 449 dao->hw = dao->ctrl_blk = NULL; 450 daio_rsc_uninit(&dao->daio); 451 452 return 0; 453 } 454 455 static int dao_rsc_reinit(struct dao *dao, const struct dao_desc *desc) 456 { 457 struct daio_mgr *mgr = dao->mgr; 458 struct daio_desc dsc = {0}; 459 460 dsc.type = dao->daio.type; 461 dsc.msr = desc->msr; 462 dsc.passthru = desc->passthru; 463 dao_rsc_uninit(dao); 464 return dao_rsc_init(dao, &dsc, mgr); 465 } 466 467 static int dai_rsc_init(struct dai *dai, 468 const struct daio_desc *desc, 469 struct daio_mgr *mgr) 470 { 471 int err; 472 struct hw *hw = mgr->mgr.hw; 473 unsigned int rsr, msr; 474 475 err = daio_rsc_init(&dai->daio, desc, mgr->mgr.hw); 476 if (err) 477 return err; 478 479 dai->ops = &dai_ops; 480 dai->hw = mgr->mgr.hw; 481 err = hw->dai_get_ctrl_blk(&dai->ctrl_blk); 482 if (err) 483 goto error1; 484 485 for (rsr = 0, msr = desc->msr; msr > 1; msr >>= 1) 486 rsr++; 487 488 hw->dai_srt_set_rsr(dai->ctrl_blk, rsr); 489 hw->dai_srt_set_drat(dai->ctrl_blk, 0); 490 /* default to disabling control of a SRC */ 491 hw->dai_srt_set_ec(dai->ctrl_blk, 0); 492 hw->dai_srt_set_et(dai->ctrl_blk, 0); /* default to disabling SRT */ 493 hw->dai_commit_write(hw, 494 daio_device_index(dai->daio.type, dai->hw), dai->ctrl_blk); 495 496 return 0; 497 498 error1: 499 daio_rsc_uninit(&dai->daio); 500 return err; 501 } 502 503 static int dai_rsc_uninit(struct dai *dai) 504 { 505 ((struct hw *)dai->hw)->dai_put_ctrl_blk(dai->ctrl_blk); 506 dai->hw = dai->ctrl_blk = NULL; 507 daio_rsc_uninit(&dai->daio); 508 return 0; 509 } 510 511 static int daio_mgr_get_rsc(struct rsc_mgr *mgr, enum DAIOTYP type) 512 { 513 if (((struct daio_usage *)mgr->rscs)->data & (0x1 << type)) 514 return -ENOENT; 515 516 ((struct daio_usage *)mgr->rscs)->data |= (0x1 << type); 517 518 return 0; 519 } 520 521 static int daio_mgr_put_rsc(struct rsc_mgr *mgr, enum DAIOTYP type) 522 { 523 ((struct daio_usage *)mgr->rscs)->data &= ~(0x1 << type); 524 525 return 0; 526 } 527 528 static int get_daio_rsc(struct daio_mgr *mgr, 529 const struct daio_desc *desc, 530 struct daio **rdaio) 531 { 532 int err; 533 struct dai *dai = NULL; 534 struct dao *dao = NULL; 535 unsigned long flags; 536 537 *rdaio = NULL; 538 539 /* Check whether there are sufficient daio resources to meet request. */ 540 spin_lock_irqsave(&mgr->mgr_lock, flags); 541 err = daio_mgr_get_rsc(&mgr->mgr, desc->type); 542 spin_unlock_irqrestore(&mgr->mgr_lock, flags); 543 if (err) { 544 printk(KERN_ERR "Can't meet DAIO resource request!\n"); 545 return err; 546 } 547 548 /* Allocate mem for daio resource */ 549 if (desc->type <= DAIO_OUT_MAX) { 550 dao = kzalloc(sizeof(*dao), GFP_KERNEL); 551 if (!dao) { 552 err = -ENOMEM; 553 goto error; 554 } 555 err = dao_rsc_init(dao, desc, mgr); 556 if (err) 557 goto error; 558 559 *rdaio = &dao->daio; 560 } else { 561 dai = kzalloc(sizeof(*dai), GFP_KERNEL); 562 if (!dai) { 563 err = -ENOMEM; 564 goto error; 565 } 566 err = dai_rsc_init(dai, desc, mgr); 567 if (err) 568 goto error; 569 570 *rdaio = &dai->daio; 571 } 572 573 mgr->daio_enable(mgr, *rdaio); 574 mgr->commit_write(mgr); 575 576 return 0; 577 578 error: 579 if (dao) 580 kfree(dao); 581 else if (dai) 582 kfree(dai); 583 584 spin_lock_irqsave(&mgr->mgr_lock, flags); 585 daio_mgr_put_rsc(&mgr->mgr, desc->type); 586 spin_unlock_irqrestore(&mgr->mgr_lock, flags); 587 return err; 588 } 589 590 static int put_daio_rsc(struct daio_mgr *mgr, struct daio *daio) 591 { 592 unsigned long flags; 593 594 mgr->daio_disable(mgr, daio); 595 mgr->commit_write(mgr); 596 597 spin_lock_irqsave(&mgr->mgr_lock, flags); 598 daio_mgr_put_rsc(&mgr->mgr, daio->type); 599 spin_unlock_irqrestore(&mgr->mgr_lock, flags); 600 601 if (daio->type <= DAIO_OUT_MAX) { 602 dao_rsc_uninit(container_of(daio, struct dao, daio)); 603 kfree(container_of(daio, struct dao, daio)); 604 } else { 605 dai_rsc_uninit(container_of(daio, struct dai, daio)); 606 kfree(container_of(daio, struct dai, daio)); 607 } 608 609 return 0; 610 } 611 612 static int daio_mgr_enb_daio(struct daio_mgr *mgr, struct daio *daio) 613 { 614 struct hw *hw = mgr->mgr.hw; 615 616 if (DAIO_OUT_MAX >= daio->type) { 617 hw->daio_mgr_enb_dao(mgr->mgr.ctrl_blk, 618 daio_device_index(daio->type, hw)); 619 } else { 620 hw->daio_mgr_enb_dai(mgr->mgr.ctrl_blk, 621 daio_device_index(daio->type, hw)); 622 } 623 return 0; 624 } 625 626 static int daio_mgr_dsb_daio(struct daio_mgr *mgr, struct daio *daio) 627 { 628 struct hw *hw = mgr->mgr.hw; 629 630 if (DAIO_OUT_MAX >= daio->type) { 631 hw->daio_mgr_dsb_dao(mgr->mgr.ctrl_blk, 632 daio_device_index(daio->type, hw)); 633 } else { 634 hw->daio_mgr_dsb_dai(mgr->mgr.ctrl_blk, 635 daio_device_index(daio->type, hw)); 636 } 637 return 0; 638 } 639 640 static int daio_map_op(void *data, struct imapper *entry) 641 { 642 struct rsc_mgr *mgr = &((struct daio_mgr *)data)->mgr; 643 struct hw *hw = mgr->hw; 644 645 hw->daio_mgr_set_imaparc(mgr->ctrl_blk, entry->slot); 646 hw->daio_mgr_set_imapnxt(mgr->ctrl_blk, entry->next); 647 hw->daio_mgr_set_imapaddr(mgr->ctrl_blk, entry->addr); 648 hw->daio_mgr_commit_write(mgr->hw, mgr->ctrl_blk); 649 650 return 0; 651 } 652 653 static int daio_imap_add(struct daio_mgr *mgr, struct imapper *entry) 654 { 655 unsigned long flags; 656 int err; 657 658 spin_lock_irqsave(&mgr->imap_lock, flags); 659 if (!entry->addr && mgr->init_imap_added) { 660 input_mapper_delete(&mgr->imappers, mgr->init_imap, 661 daio_map_op, mgr); 662 mgr->init_imap_added = 0; 663 } 664 err = input_mapper_add(&mgr->imappers, entry, daio_map_op, mgr); 665 spin_unlock_irqrestore(&mgr->imap_lock, flags); 666 667 return err; 668 } 669 670 static int daio_imap_delete(struct daio_mgr *mgr, struct imapper *entry) 671 { 672 unsigned long flags; 673 int err; 674 675 spin_lock_irqsave(&mgr->imap_lock, flags); 676 err = input_mapper_delete(&mgr->imappers, entry, daio_map_op, mgr); 677 if (list_empty(&mgr->imappers)) { 678 input_mapper_add(&mgr->imappers, mgr->init_imap, 679 daio_map_op, mgr); 680 mgr->init_imap_added = 1; 681 } 682 spin_unlock_irqrestore(&mgr->imap_lock, flags); 683 684 return err; 685 } 686 687 static int daio_mgr_commit_write(struct daio_mgr *mgr) 688 { 689 struct hw *hw = mgr->mgr.hw; 690 691 hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk); 692 return 0; 693 } 694 695 int daio_mgr_create(void *hw, struct daio_mgr **rdaio_mgr) 696 { 697 int err, i; 698 struct daio_mgr *daio_mgr; 699 struct imapper *entry; 700 701 *rdaio_mgr = NULL; 702 daio_mgr = kzalloc(sizeof(*daio_mgr), GFP_KERNEL); 703 if (!daio_mgr) 704 return -ENOMEM; 705 706 err = rsc_mgr_init(&daio_mgr->mgr, DAIO, NUM_DAIOTYP, hw); 707 if (err) 708 goto error1; 709 710 spin_lock_init(&daio_mgr->mgr_lock); 711 spin_lock_init(&daio_mgr->imap_lock); 712 INIT_LIST_HEAD(&daio_mgr->imappers); 713 entry = kzalloc(sizeof(*entry), GFP_KERNEL); 714 if (!entry) { 715 err = -ENOMEM; 716 goto error2; 717 } 718 entry->slot = entry->addr = entry->next = entry->user = 0; 719 list_add(&entry->list, &daio_mgr->imappers); 720 daio_mgr->init_imap = entry; 721 daio_mgr->init_imap_added = 1; 722 723 daio_mgr->get_daio = get_daio_rsc; 724 daio_mgr->put_daio = put_daio_rsc; 725 daio_mgr->daio_enable = daio_mgr_enb_daio; 726 daio_mgr->daio_disable = daio_mgr_dsb_daio; 727 daio_mgr->imap_add = daio_imap_add; 728 daio_mgr->imap_delete = daio_imap_delete; 729 daio_mgr->commit_write = daio_mgr_commit_write; 730 731 for (i = 0; i < 8; i++) { 732 ((struct hw *)hw)->daio_mgr_dsb_dao(daio_mgr->mgr.ctrl_blk, i); 733 ((struct hw *)hw)->daio_mgr_dsb_dai(daio_mgr->mgr.ctrl_blk, i); 734 } 735 ((struct hw *)hw)->daio_mgr_commit_write(hw, daio_mgr->mgr.ctrl_blk); 736 737 *rdaio_mgr = daio_mgr; 738 739 return 0; 740 741 error2: 742 rsc_mgr_uninit(&daio_mgr->mgr); 743 error1: 744 kfree(daio_mgr); 745 return err; 746 } 747 748 int daio_mgr_destroy(struct daio_mgr *daio_mgr) 749 { 750 unsigned long flags; 751 752 /* free daio input mapper list */ 753 spin_lock_irqsave(&daio_mgr->imap_lock, flags); 754 free_input_mapper_list(&daio_mgr->imappers); 755 spin_unlock_irqrestore(&daio_mgr->imap_lock, flags); 756 757 rsc_mgr_uninit(&daio_mgr->mgr); 758 kfree(daio_mgr); 759 760 return 0; 761 } 762 763