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TOMOYO Linux Cross Reference
Linux/sound/pci/ctxfi/ctdaio.c

Version: ~ [ linux-5.4-rc7 ] ~ [ linux-5.3.11 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.84 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.154 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.201 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.201 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.77 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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         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         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         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         dai->hw->dai_srt_set_srcm(dai->ctrl_blk, src->ops->index(src));
281         return 0;
282 }
283 
284 static int dai_set_srt_srcr(struct dai *dai, struct rsc *src)
285 {
286         src->ops->master(src);
287         dai->hw->dai_srt_set_srco(dai->ctrl_blk, src->ops->index(src));
288         return 0;
289 }
290 
291 static int dai_set_srt_msr(struct dai *dai, unsigned int msr)
292 {
293         unsigned int rsr;
294 
295         for (rsr = 0; msr > 1; msr >>= 1)
296                 rsr++;
297 
298         dai->hw->dai_srt_set_rsr(dai->ctrl_blk, rsr);
299         return 0;
300 }
301 
302 static int dai_set_enb_src(struct dai *dai, unsigned int enb)
303 {
304         dai->hw->dai_srt_set_ec(dai->ctrl_blk, enb);
305         return 0;
306 }
307 
308 static int dai_set_enb_srt(struct dai *dai, unsigned int enb)
309 {
310         dai->hw->dai_srt_set_et(dai->ctrl_blk, enb);
311         return 0;
312 }
313 
314 static int dai_commit_write(struct dai *dai)
315 {
316         dai->hw->dai_commit_write(dai->hw,
317                 daio_device_index(dai->daio.type, dai->hw), dai->ctrl_blk);
318         return 0;
319 }
320 
321 static struct dai_rsc_ops dai_ops = {
322         .set_srt_srcl           = dai_set_srt_srcl,
323         .set_srt_srcr           = dai_set_srt_srcr,
324         .set_srt_msr            = dai_set_srt_msr,
325         .set_enb_src            = dai_set_enb_src,
326         .set_enb_srt            = dai_set_enb_srt,
327         .commit_write           = dai_commit_write,
328 };
329 
330 static int daio_rsc_init(struct daio *daio,
331                          const struct daio_desc *desc,
332                          struct hw *hw)
333 {
334         int err;
335         unsigned int idx_l, idx_r;
336 
337         switch (hw->chip_type) {
338         case ATC20K1:
339                 idx_l = idx_20k1[desc->type].left;
340                 idx_r = idx_20k1[desc->type].right;
341                 break;
342         case ATC20K2:
343                 idx_l = idx_20k2[desc->type].left;
344                 idx_r = idx_20k2[desc->type].right;
345                 break;
346         default:
347                 return -EINVAL;
348         }
349         err = rsc_init(&daio->rscl, idx_l, DAIO, desc->msr, hw);
350         if (err)
351                 return err;
352 
353         err = rsc_init(&daio->rscr, idx_r, DAIO, desc->msr, hw);
354         if (err)
355                 goto error1;
356 
357         /* Set daio->rscl/r->ops to daio specific ones */
358         if (desc->type <= DAIO_OUT_MAX) {
359                 daio->rscl.ops = daio->rscr.ops = &daio_out_rsc_ops;
360         } else {
361                 switch (hw->chip_type) {
362                 case ATC20K1:
363                         daio->rscl.ops = daio->rscr.ops = &daio_in_rsc_ops_20k1;
364                         break;
365                 case ATC20K2:
366                         daio->rscl.ops = daio->rscr.ops = &daio_in_rsc_ops_20k2;
367                         break;
368                 default:
369                         break;
370                 }
371         }
372         daio->type = desc->type;
373 
374         return 0;
375 
376 error1:
377         rsc_uninit(&daio->rscl);
378         return err;
379 }
380 
381 static int daio_rsc_uninit(struct daio *daio)
382 {
383         rsc_uninit(&daio->rscl);
384         rsc_uninit(&daio->rscr);
385 
386         return 0;
387 }
388 
389 static int dao_rsc_init(struct dao *dao,
390                         const struct daio_desc *desc,
391                         struct daio_mgr *mgr)
392 {
393         struct hw *hw = mgr->mgr.hw;
394         unsigned int conf;
395         int err;
396 
397         err = daio_rsc_init(&dao->daio, desc, mgr->mgr.hw);
398         if (err)
399                 return err;
400 
401         dao->imappers = kzalloc(sizeof(void *)*desc->msr*2, GFP_KERNEL);
402         if (!dao->imappers) {
403                 err = -ENOMEM;
404                 goto error1;
405         }
406         dao->ops = &dao_ops;
407         dao->mgr = mgr;
408         dao->hw = hw;
409         err = hw->dao_get_ctrl_blk(&dao->ctrl_blk);
410         if (err)
411                 goto error2;
412 
413         hw->daio_mgr_dsb_dao(mgr->mgr.ctrl_blk,
414                         daio_device_index(dao->daio.type, hw));
415         hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
416 
417         conf = (desc->msr & 0x7) | (desc->passthru << 3);
418         hw->daio_mgr_dao_init(mgr->mgr.ctrl_blk,
419                         daio_device_index(dao->daio.type, hw), conf);
420         hw->daio_mgr_enb_dao(mgr->mgr.ctrl_blk,
421                         daio_device_index(dao->daio.type, hw));
422         hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
423 
424         return 0;
425 
426 error2:
427         kfree(dao->imappers);
428         dao->imappers = NULL;
429 error1:
430         daio_rsc_uninit(&dao->daio);
431         return err;
432 }
433 
434 static int dao_rsc_uninit(struct dao *dao)
435 {
436         if (dao->imappers) {
437                 if (dao->imappers[0])
438                         dao_clear_left_input(dao);
439 
440                 if (dao->imappers[dao->daio.rscl.msr])
441                         dao_clear_right_input(dao);
442 
443                 kfree(dao->imappers);
444                 dao->imappers = NULL;
445         }
446         dao->hw->dao_put_ctrl_blk(dao->ctrl_blk);
447         dao->hw = dao->ctrl_blk = NULL;
448         daio_rsc_uninit(&dao->daio);
449 
450         return 0;
451 }
452 
453 static int dao_rsc_reinit(struct dao *dao, const struct dao_desc *desc)
454 {
455         struct daio_mgr *mgr = dao->mgr;
456         struct daio_desc dsc = {0};
457 
458         dsc.type = dao->daio.type;
459         dsc.msr = desc->msr;
460         dsc.passthru = desc->passthru;
461         dao_rsc_uninit(dao);
462         return dao_rsc_init(dao, &dsc, mgr);
463 }
464 
465 static int dai_rsc_init(struct dai *dai,
466                         const struct daio_desc *desc,
467                         struct daio_mgr *mgr)
468 {
469         int err;
470         struct hw *hw = mgr->mgr.hw;
471         unsigned int rsr, msr;
472 
473         err = daio_rsc_init(&dai->daio, desc, mgr->mgr.hw);
474         if (err)
475                 return err;
476 
477         dai->ops = &dai_ops;
478         dai->hw = mgr->mgr.hw;
479         err = hw->dai_get_ctrl_blk(&dai->ctrl_blk);
480         if (err)
481                 goto error1;
482 
483         for (rsr = 0, msr = desc->msr; msr > 1; msr >>= 1)
484                 rsr++;
485 
486         hw->dai_srt_set_rsr(dai->ctrl_blk, rsr);
487         hw->dai_srt_set_drat(dai->ctrl_blk, 0);
488         /* default to disabling control of a SRC */
489         hw->dai_srt_set_ec(dai->ctrl_blk, 0);
490         hw->dai_srt_set_et(dai->ctrl_blk, 0); /* default to disabling SRT */
491         hw->dai_commit_write(hw,
492                 daio_device_index(dai->daio.type, dai->hw), dai->ctrl_blk);
493 
494         return 0;
495 
496 error1:
497         daio_rsc_uninit(&dai->daio);
498         return err;
499 }
500 
501 static int dai_rsc_uninit(struct dai *dai)
502 {
503         dai->hw->dai_put_ctrl_blk(dai->ctrl_blk);
504         dai->hw = dai->ctrl_blk = NULL;
505         daio_rsc_uninit(&dai->daio);
506         return 0;
507 }
508 
509 static int daio_mgr_get_rsc(struct rsc_mgr *mgr, enum DAIOTYP type)
510 {
511         if (((struct daio_usage *)mgr->rscs)->data & (0x1 << type))
512                 return -ENOENT;
513 
514         ((struct daio_usage *)mgr->rscs)->data |= (0x1 << type);
515 
516         return 0;
517 }
518 
519 static int daio_mgr_put_rsc(struct rsc_mgr *mgr, enum DAIOTYP type)
520 {
521         ((struct daio_usage *)mgr->rscs)->data &= ~(0x1 << type);
522 
523         return 0;
524 }
525 
526 static int get_daio_rsc(struct daio_mgr *mgr,
527                         const struct daio_desc *desc,
528                         struct daio **rdaio)
529 {
530         int err;
531         unsigned long flags;
532 
533         *rdaio = NULL;
534 
535         /* Check whether there are sufficient daio resources to meet request. */
536         spin_lock_irqsave(&mgr->mgr_lock, flags);
537         err = daio_mgr_get_rsc(&mgr->mgr, desc->type);
538         spin_unlock_irqrestore(&mgr->mgr_lock, flags);
539         if (err) {
540                 dev_err(mgr->card->dev,
541                         "Can't meet DAIO resource request!\n");
542                 return err;
543         }
544 
545         err = -ENOMEM;
546         /* Allocate mem for daio resource */
547         if (desc->type <= DAIO_OUT_MAX) {
548                 struct dao *dao = kzalloc(sizeof(*dao), GFP_KERNEL);
549                 if (!dao)
550                         goto error;
551 
552                 err = dao_rsc_init(dao, desc, mgr);
553                 if (err) {
554                         kfree(dao);
555                         goto error;
556                 }
557 
558                 *rdaio = &dao->daio;
559         } else {
560                 struct dai *dai = kzalloc(sizeof(*dai), GFP_KERNEL);
561                 if (!dai)
562                         goto error;
563 
564                 err = dai_rsc_init(dai, desc, mgr);
565                 if (err) {
566                         kfree(dai);
567                         goto error;
568                 }
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         spin_lock_irqsave(&mgr->mgr_lock, flags);
580         daio_mgr_put_rsc(&mgr->mgr, desc->type);
581         spin_unlock_irqrestore(&mgr->mgr_lock, flags);
582         return err;
583 }
584 
585 static int put_daio_rsc(struct daio_mgr *mgr, struct daio *daio)
586 {
587         unsigned long flags;
588 
589         mgr->daio_disable(mgr, daio);
590         mgr->commit_write(mgr);
591 
592         spin_lock_irqsave(&mgr->mgr_lock, flags);
593         daio_mgr_put_rsc(&mgr->mgr, daio->type);
594         spin_unlock_irqrestore(&mgr->mgr_lock, flags);
595 
596         if (daio->type <= DAIO_OUT_MAX) {
597                 dao_rsc_uninit(container_of(daio, struct dao, daio));
598                 kfree(container_of(daio, struct dao, daio));
599         } else {
600                 dai_rsc_uninit(container_of(daio, struct dai, daio));
601                 kfree(container_of(daio, struct dai, daio));
602         }
603 
604         return 0;
605 }
606 
607 static int daio_mgr_enb_daio(struct daio_mgr *mgr, struct daio *daio)
608 {
609         struct hw *hw = mgr->mgr.hw;
610 
611         if (DAIO_OUT_MAX >= daio->type) {
612                 hw->daio_mgr_enb_dao(mgr->mgr.ctrl_blk,
613                                 daio_device_index(daio->type, hw));
614         } else {
615                 hw->daio_mgr_enb_dai(mgr->mgr.ctrl_blk,
616                                 daio_device_index(daio->type, hw));
617         }
618         return 0;
619 }
620 
621 static int daio_mgr_dsb_daio(struct daio_mgr *mgr, struct daio *daio)
622 {
623         struct hw *hw = mgr->mgr.hw;
624 
625         if (DAIO_OUT_MAX >= daio->type) {
626                 hw->daio_mgr_dsb_dao(mgr->mgr.ctrl_blk,
627                                 daio_device_index(daio->type, hw));
628         } else {
629                 hw->daio_mgr_dsb_dai(mgr->mgr.ctrl_blk,
630                                 daio_device_index(daio->type, hw));
631         }
632         return 0;
633 }
634 
635 static int daio_map_op(void *data, struct imapper *entry)
636 {
637         struct rsc_mgr *mgr = &((struct daio_mgr *)data)->mgr;
638         struct hw *hw = mgr->hw;
639 
640         hw->daio_mgr_set_imaparc(mgr->ctrl_blk, entry->slot);
641         hw->daio_mgr_set_imapnxt(mgr->ctrl_blk, entry->next);
642         hw->daio_mgr_set_imapaddr(mgr->ctrl_blk, entry->addr);
643         hw->daio_mgr_commit_write(mgr->hw, mgr->ctrl_blk);
644 
645         return 0;
646 }
647 
648 static int daio_imap_add(struct daio_mgr *mgr, struct imapper *entry)
649 {
650         unsigned long flags;
651         int err;
652 
653         spin_lock_irqsave(&mgr->imap_lock, flags);
654         if (!entry->addr && mgr->init_imap_added) {
655                 input_mapper_delete(&mgr->imappers, mgr->init_imap,
656                                                         daio_map_op, mgr);
657                 mgr->init_imap_added = 0;
658         }
659         err = input_mapper_add(&mgr->imappers, entry, daio_map_op, mgr);
660         spin_unlock_irqrestore(&mgr->imap_lock, flags);
661 
662         return err;
663 }
664 
665 static int daio_imap_delete(struct daio_mgr *mgr, struct imapper *entry)
666 {
667         unsigned long flags;
668         int err;
669 
670         spin_lock_irqsave(&mgr->imap_lock, flags);
671         err = input_mapper_delete(&mgr->imappers, entry, daio_map_op, mgr);
672         if (list_empty(&mgr->imappers)) {
673                 input_mapper_add(&mgr->imappers, mgr->init_imap,
674                                                         daio_map_op, mgr);
675                 mgr->init_imap_added = 1;
676         }
677         spin_unlock_irqrestore(&mgr->imap_lock, flags);
678 
679         return err;
680 }
681 
682 static int daio_mgr_commit_write(struct daio_mgr *mgr)
683 {
684         struct hw *hw = mgr->mgr.hw;
685 
686         hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
687         return 0;
688 }
689 
690 int daio_mgr_create(struct hw *hw, struct daio_mgr **rdaio_mgr)
691 {
692         int err, i;
693         struct daio_mgr *daio_mgr;
694         struct imapper *entry;
695 
696         *rdaio_mgr = NULL;
697         daio_mgr = kzalloc(sizeof(*daio_mgr), GFP_KERNEL);
698         if (!daio_mgr)
699                 return -ENOMEM;
700 
701         err = rsc_mgr_init(&daio_mgr->mgr, DAIO, NUM_DAIOTYP, hw);
702         if (err)
703                 goto error1;
704 
705         spin_lock_init(&daio_mgr->mgr_lock);
706         spin_lock_init(&daio_mgr->imap_lock);
707         INIT_LIST_HEAD(&daio_mgr->imappers);
708         entry = kzalloc(sizeof(*entry), GFP_KERNEL);
709         if (!entry) {
710                 err = -ENOMEM;
711                 goto error2;
712         }
713         entry->slot = entry->addr = entry->next = entry->user = 0;
714         list_add(&entry->list, &daio_mgr->imappers);
715         daio_mgr->init_imap = entry;
716         daio_mgr->init_imap_added = 1;
717 
718         daio_mgr->get_daio = get_daio_rsc;
719         daio_mgr->put_daio = put_daio_rsc;
720         daio_mgr->daio_enable = daio_mgr_enb_daio;
721         daio_mgr->daio_disable = daio_mgr_dsb_daio;
722         daio_mgr->imap_add = daio_imap_add;
723         daio_mgr->imap_delete = daio_imap_delete;
724         daio_mgr->commit_write = daio_mgr_commit_write;
725         daio_mgr->card = hw->card;
726 
727         for (i = 0; i < 8; i++) {
728                 hw->daio_mgr_dsb_dao(daio_mgr->mgr.ctrl_blk, i);
729                 hw->daio_mgr_dsb_dai(daio_mgr->mgr.ctrl_blk, i);
730         }
731         hw->daio_mgr_commit_write(hw, daio_mgr->mgr.ctrl_blk);
732 
733         *rdaio_mgr = daio_mgr;
734 
735         return 0;
736 
737 error2:
738         rsc_mgr_uninit(&daio_mgr->mgr);
739 error1:
740         kfree(daio_mgr);
741         return err;
742 }
743 
744 int daio_mgr_destroy(struct daio_mgr *daio_mgr)
745 {
746         unsigned long flags;
747 
748         /* free daio input mapper list */
749         spin_lock_irqsave(&daio_mgr->imap_lock, flags);
750         free_input_mapper_list(&daio_mgr->imappers);
751         spin_unlock_irqrestore(&daio_mgr->imap_lock, flags);
752 
753         rsc_mgr_uninit(&daio_mgr->mgr);
754         kfree(daio_mgr);
755 
756         return 0;
757 }
758 
759 

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