2 * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved.
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.
11 * This file contains the implementation of Digital Audio Input Output
12 * resource management object.
20 #include "cthardware.h"
22 #include <linux/slab.h>
23 #include <linux/kernel.h>
25 #define DAIO_RESOURCE_NUM NUM_DAIOTYP
26 #define DAIO_OUT_MAX SPDIFOO
30 unsigned short lineo1:1;
31 unsigned short lineo2:1;
32 unsigned short lineo3:1;
33 unsigned short lineo4:1;
34 unsigned short spdifoo:1;
35 unsigned short lineim:1;
36 unsigned short spdifio:1;
37 unsigned short spdifi1:1;
47 struct daio_rsc_idx idx_20k1[NUM_DAIOTYP] = {
48 [LINEO1] = {.left = 0x00, .right = 0x01},
49 [LINEO2] = {.left = 0x18, .right = 0x19},
50 [LINEO3] = {.left = 0x08, .right = 0x09},
51 [LINEO4] = {.left = 0x10, .right = 0x11},
52 [LINEIM] = {.left = 0x1b5, .right = 0x1bd},
53 [SPDIFOO] = {.left = 0x20, .right = 0x21},
54 [SPDIFIO] = {.left = 0x15, .right = 0x1d},
55 [SPDIFI1] = {.left = 0x95, .right = 0x9d},
58 struct daio_rsc_idx idx_20k2[NUM_DAIOTYP] = {
59 [LINEO1] = {.left = 0x40, .right = 0x41},
60 [LINEO2] = {.left = 0x70, .right = 0x71},
61 [LINEO3] = {.left = 0x50, .right = 0x51},
62 [LINEO4] = {.left = 0x60, .right = 0x61},
63 [LINEIM] = {.left = 0x45, .right = 0xc5},
64 [SPDIFOO] = {.left = 0x00, .right = 0x01},
65 [SPDIFIO] = {.left = 0x05, .right = 0x85},
68 static int daio_master(struct rsc *rsc)
70 /* Actually, this is not the resource index of DAIO.
71 * For DAO, it is the input mapper index. And, for DAI,
72 * it is the output time-slot index. */
73 return rsc->conj = rsc->idx;
76 static int daio_index(const struct rsc *rsc)
81 static int daio_out_next_conj(struct rsc *rsc)
83 return rsc->conj += 2;
86 static int daio_in_next_conj_20k1(struct rsc *rsc)
88 return rsc->conj += 0x200;
91 static int daio_in_next_conj_20k2(struct rsc *rsc)
93 return rsc->conj += 0x100;
96 static struct rsc_ops daio_out_rsc_ops = {
97 .master = daio_master,
98 .next_conj = daio_out_next_conj,
103 static struct rsc_ops daio_in_rsc_ops_20k1 = {
104 .master = daio_master,
105 .next_conj = daio_in_next_conj_20k1,
107 .output_slot = daio_index,
110 static struct rsc_ops daio_in_rsc_ops_20k2 = {
111 .master = daio_master,
112 .next_conj = daio_in_next_conj_20k2,
114 .output_slot = daio_index,
117 static unsigned int daio_device_index(enum DAIOTYP type, struct hw *hw)
119 switch (hw->get_chip_type(hw)) {
122 case SPDIFOO: return 0;
123 case SPDIFIO: return 0;
124 case SPDIFI1: return 1;
125 case LINEO1: return 4;
126 case LINEO2: return 7;
127 case LINEO3: return 5;
128 case LINEO4: return 6;
129 case LINEIM: return 7;
130 default: return -EINVAL;
134 case SPDIFOO: return 0;
135 case SPDIFIO: return 0;
136 case LINEO1: return 4;
137 case LINEO2: return 7;
138 case LINEO3: return 5;
139 case LINEO4: return 6;
140 case LINEIM: return 4;
141 default: return -EINVAL;
148 static int dao_rsc_reinit(struct dao *dao, const struct dao_desc *desc);
150 static int dao_spdif_get_spos(struct dao *dao, unsigned int *spos)
152 ((struct hw *)dao->hw)->dao_get_spos(dao->ctrl_blk, spos);
156 static int dao_spdif_set_spos(struct dao *dao, unsigned int spos)
158 ((struct hw *)dao->hw)->dao_set_spos(dao->ctrl_blk, spos);
162 static int dao_commit_write(struct dao *dao)
164 ((struct hw *)dao->hw)->dao_commit_write(dao->hw,
165 daio_device_index(dao->daio.type, dao->hw), dao->ctrl_blk);
169 static int dao_set_left_input(struct dao *dao, struct rsc *input)
171 struct imapper *entry = NULL;
172 struct daio *daio = &dao->daio;
175 entry = kzalloc((sizeof(*entry) * daio->rscl.msr), GFP_KERNEL);
179 /* Program master and conjugate resources */
180 input->ops->master(input);
181 daio->rscl.ops->master(&daio->rscl);
182 for (i = 0; i < daio->rscl.msr; i++, entry++) {
183 entry->slot = input->ops->output_slot(input);
184 entry->user = entry->addr = daio->rscl.ops->index(&daio->rscl);
185 dao->mgr->imap_add(dao->mgr, entry);
186 dao->imappers[i] = entry;
188 input->ops->next_conj(input);
189 daio->rscl.ops->next_conj(&daio->rscl);
191 input->ops->master(input);
192 daio->rscl.ops->master(&daio->rscl);
197 static int dao_set_right_input(struct dao *dao, struct rsc *input)
199 struct imapper *entry = NULL;
200 struct daio *daio = &dao->daio;
203 entry = kzalloc((sizeof(*entry) * daio->rscr.msr), GFP_KERNEL);
207 /* Program master and conjugate resources */
208 input->ops->master(input);
209 daio->rscr.ops->master(&daio->rscr);
210 for (i = 0; i < daio->rscr.msr; i++, entry++) {
211 entry->slot = input->ops->output_slot(input);
212 entry->user = entry->addr = daio->rscr.ops->index(&daio->rscr);
213 dao->mgr->imap_add(dao->mgr, entry);
214 dao->imappers[daio->rscl.msr + i] = entry;
216 input->ops->next_conj(input);
217 daio->rscr.ops->next_conj(&daio->rscr);
219 input->ops->master(input);
220 daio->rscr.ops->master(&daio->rscr);
225 static int dao_clear_left_input(struct dao *dao)
227 struct imapper *entry = NULL;
228 struct daio *daio = &dao->daio;
231 if (NULL == dao->imappers[0])
234 entry = dao->imappers[0];
235 dao->mgr->imap_delete(dao->mgr, entry);
236 /* Program conjugate resources */
237 for (i = 1; i < daio->rscl.msr; i++) {
238 entry = dao->imappers[i];
239 dao->mgr->imap_delete(dao->mgr, entry);
240 dao->imappers[i] = NULL;
243 kfree(dao->imappers[0]);
244 dao->imappers[0] = NULL;
249 static int dao_clear_right_input(struct dao *dao)
251 struct imapper *entry = NULL;
252 struct daio *daio = &dao->daio;
255 if (NULL == dao->imappers[daio->rscl.msr])
258 entry = dao->imappers[daio->rscl.msr];
259 dao->mgr->imap_delete(dao->mgr, entry);
260 /* Program conjugate resources */
261 for (i = 1; i < daio->rscr.msr; i++) {
262 entry = dao->imappers[daio->rscl.msr + i];
263 dao->mgr->imap_delete(dao->mgr, entry);
264 dao->imappers[daio->rscl.msr + i] = NULL;
267 kfree(dao->imappers[daio->rscl.msr]);
268 dao->imappers[daio->rscl.msr] = NULL;
273 static struct dao_rsc_ops dao_ops = {
274 .set_spos = dao_spdif_set_spos,
275 .commit_write = dao_commit_write,
276 .get_spos = dao_spdif_get_spos,
277 .reinit = dao_rsc_reinit,
278 .set_left_input = dao_set_left_input,
279 .set_right_input = dao_set_right_input,
280 .clear_left_input = dao_clear_left_input,
281 .clear_right_input = dao_clear_right_input,
284 static int dai_set_srt_srcl(struct dai *dai, struct rsc *src)
286 src->ops->master(src);
287 ((struct hw *)dai->hw)->dai_srt_set_srcm(dai->ctrl_blk,
288 src->ops->index(src));
292 static int dai_set_srt_srcr(struct dai *dai, struct rsc *src)
294 src->ops->master(src);
295 ((struct hw *)dai->hw)->dai_srt_set_srco(dai->ctrl_blk,
296 src->ops->index(src));
300 static int dai_set_srt_msr(struct dai *dai, unsigned int msr)
302 unsigned int rsr = 0;
304 for (rsr = 0; msr > 1; msr >>= 1)
307 ((struct hw *)dai->hw)->dai_srt_set_rsr(dai->ctrl_blk, rsr);
311 static int dai_set_enb_src(struct dai *dai, unsigned int enb)
313 ((struct hw *)dai->hw)->dai_srt_set_ec(dai->ctrl_blk, enb);
317 static int dai_set_enb_srt(struct dai *dai, unsigned int enb)
319 ((struct hw *)dai->hw)->dai_srt_set_et(dai->ctrl_blk, enb);
323 static int dai_commit_write(struct dai *dai)
325 ((struct hw *)dai->hw)->dai_commit_write(dai->hw,
326 daio_device_index(dai->daio.type, dai->hw), dai->ctrl_blk);
330 static struct dai_rsc_ops dai_ops = {
331 .set_srt_srcl = dai_set_srt_srcl,
332 .set_srt_srcr = dai_set_srt_srcr,
333 .set_srt_msr = dai_set_srt_msr,
334 .set_enb_src = dai_set_enb_src,
335 .set_enb_srt = dai_set_enb_srt,
336 .commit_write = dai_commit_write,
339 static int daio_rsc_init(struct daio *daio,
340 const struct daio_desc *desc,
344 unsigned int idx_l = 0, idx_r = 0;
346 switch (((struct hw *)hw)->get_chip_type(hw)) {
348 idx_l = idx_20k1[desc->type].left;
349 idx_r = idx_20k1[desc->type].right;
352 idx_l = idx_20k2[desc->type].left;
353 idx_r = idx_20k2[desc->type].right;
358 err = rsc_init(&daio->rscl, idx_l, DAIO, desc->msr, hw);
362 err = rsc_init(&daio->rscr, idx_r, DAIO, desc->msr, hw);
366 /* Set daio->rscl/r->ops to daio specific ones */
367 if (desc->type <= DAIO_OUT_MAX) {
368 daio->rscl.ops = daio->rscr.ops = &daio_out_rsc_ops;
370 switch (((struct hw *)hw)->get_chip_type(hw)) {
372 daio->rscl.ops = daio->rscr.ops = &daio_in_rsc_ops_20k1;
375 daio->rscl.ops = daio->rscr.ops = &daio_in_rsc_ops_20k2;
381 daio->type = desc->type;
386 rsc_uninit(&daio->rscl);
390 static int daio_rsc_uninit(struct daio *daio)
392 rsc_uninit(&daio->rscl);
393 rsc_uninit(&daio->rscr);
398 static int dao_rsc_init(struct dao *dao,
399 const struct daio_desc *desc,
400 struct daio_mgr *mgr)
402 struct hw *hw = mgr->mgr.hw;
403 unsigned int conf = 0;
406 err = daio_rsc_init(&dao->daio, desc, mgr->mgr.hw);
410 dao->imappers = kzalloc(sizeof(void *)*desc->msr*2, GFP_KERNEL);
411 if (NULL == dao->imappers) {
418 err = hw->dao_get_ctrl_blk(&dao->ctrl_blk);
422 hw->daio_mgr_dsb_dao(mgr->mgr.ctrl_blk,
423 daio_device_index(dao->daio.type, hw));
424 hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
426 conf |= (desc->msr & 0x7) | (desc->passthru << 3);
427 hw->daio_mgr_dao_init(mgr->mgr.ctrl_blk,
428 daio_device_index(dao->daio.type, hw), conf);
429 hw->daio_mgr_enb_dao(mgr->mgr.ctrl_blk,
430 daio_device_index(dao->daio.type, hw));
431 hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
436 kfree(dao->imappers);
437 dao->imappers = NULL;
439 daio_rsc_uninit(&dao->daio);
443 static int dao_rsc_uninit(struct dao *dao)
445 if (NULL != dao->imappers) {
446 if (NULL != dao->imappers[0])
447 dao_clear_left_input(dao);
449 if (NULL != dao->imappers[dao->daio.rscl.msr])
450 dao_clear_right_input(dao);
452 kfree(dao->imappers);
453 dao->imappers = NULL;
455 ((struct hw *)dao->hw)->dao_put_ctrl_blk(dao->ctrl_blk);
456 dao->hw = dao->ctrl_blk = NULL;
457 daio_rsc_uninit(&dao->daio);
462 static int dao_rsc_reinit(struct dao *dao, const struct dao_desc *desc)
464 struct daio_mgr *mgr = dao->mgr;
465 struct daio_desc dsc = {0};
467 dsc.type = dao->daio.type;
469 dsc.passthru = desc->passthru;
471 return dao_rsc_init(dao, &dsc, mgr);
474 static int dai_rsc_init(struct dai *dai,
475 const struct daio_desc *desc,
476 struct daio_mgr *mgr)
479 struct hw *hw = mgr->mgr.hw;
480 unsigned int rsr = 0, msr = 0;
482 err = daio_rsc_init(&dai->daio, desc, mgr->mgr.hw);
487 dai->hw = mgr->mgr.hw;
488 err = hw->dai_get_ctrl_blk(&dai->ctrl_blk);
492 for (rsr = 0, msr = desc->msr; msr > 1; msr >>= 1)
495 hw->dai_srt_set_rsr(dai->ctrl_blk, rsr);
496 hw->dai_srt_set_drat(dai->ctrl_blk, 0);
497 /* default to disabling control of a SRC */
498 hw->dai_srt_set_ec(dai->ctrl_blk, 0);
499 hw->dai_srt_set_et(dai->ctrl_blk, 0); /* default to disabling SRT */
500 hw->dai_commit_write(hw,
501 daio_device_index(dai->daio.type, dai->hw), dai->ctrl_blk);
506 daio_rsc_uninit(&dai->daio);
510 static int dai_rsc_uninit(struct dai *dai)
512 ((struct hw *)dai->hw)->dai_put_ctrl_blk(dai->ctrl_blk);
513 dai->hw = dai->ctrl_blk = NULL;
514 daio_rsc_uninit(&dai->daio);
518 static int daio_mgr_get_rsc(struct rsc_mgr *mgr, enum DAIOTYP type)
520 if (((union daio_usage *)mgr->rscs)->data & (0x1 << type))
523 ((union daio_usage *)mgr->rscs)->data |= (0x1 << type);
528 static int daio_mgr_put_rsc(struct rsc_mgr *mgr, enum DAIOTYP type)
530 ((union daio_usage *)mgr->rscs)->data &= ~(0x1 << type);
535 static int get_daio_rsc(struct daio_mgr *mgr,
536 const struct daio_desc *desc,
540 struct dai *dai = NULL;
541 struct dao *dao = NULL;
546 /* Check whether there are sufficient daio resources to meet request. */
547 spin_lock_irqsave(&mgr->mgr_lock, flags);
548 err = daio_mgr_get_rsc(&mgr->mgr, desc->type);
549 spin_unlock_irqrestore(&mgr->mgr_lock, flags);
551 printk(KERN_ERR "Can't meet DAIO resource request!\n");
555 /* Allocate mem for daio resource */
556 if (desc->type <= DAIO_OUT_MAX) {
557 dao = kzalloc(sizeof(*dao), GFP_KERNEL);
562 err = dao_rsc_init(dao, desc, mgr);
568 dai = kzalloc(sizeof(*dai), GFP_KERNEL);
573 err = dai_rsc_init(dai, desc, mgr);
580 mgr->daio_enable(mgr, *rdaio);
581 mgr->commit_write(mgr);
588 else if (NULL != dai)
591 spin_lock_irqsave(&mgr->mgr_lock, flags);
592 daio_mgr_put_rsc(&mgr->mgr, desc->type);
593 spin_unlock_irqrestore(&mgr->mgr_lock, flags);
597 static int put_daio_rsc(struct daio_mgr *mgr, struct daio *daio)
601 mgr->daio_disable(mgr, daio);
602 mgr->commit_write(mgr);
604 spin_lock_irqsave(&mgr->mgr_lock, flags);
605 daio_mgr_put_rsc(&mgr->mgr, daio->type);
606 spin_unlock_irqrestore(&mgr->mgr_lock, flags);
608 if (daio->type <= DAIO_OUT_MAX) {
609 dao_rsc_uninit(container_of(daio, struct dao, daio));
610 kfree(container_of(daio, struct dao, daio));
612 dai_rsc_uninit(container_of(daio, struct dai, daio));
613 kfree(container_of(daio, struct dai, daio));
619 static int daio_mgr_enb_daio(struct daio_mgr *mgr, struct daio *daio)
621 struct hw *hw = mgr->mgr.hw;
623 if (DAIO_OUT_MAX >= daio->type) {
624 hw->daio_mgr_enb_dao(mgr->mgr.ctrl_blk,
625 daio_device_index(daio->type, hw));
627 hw->daio_mgr_enb_dai(mgr->mgr.ctrl_blk,
628 daio_device_index(daio->type, hw));
633 static int daio_mgr_dsb_daio(struct daio_mgr *mgr, struct daio *daio)
635 struct hw *hw = mgr->mgr.hw;
637 if (DAIO_OUT_MAX >= daio->type) {
638 hw->daio_mgr_dsb_dao(mgr->mgr.ctrl_blk,
639 daio_device_index(daio->type, hw));
641 hw->daio_mgr_dsb_dai(mgr->mgr.ctrl_blk,
642 daio_device_index(daio->type, hw));
647 static int daio_map_op(void *data, struct imapper *entry)
649 struct rsc_mgr *mgr = &((struct daio_mgr *)data)->mgr;
650 struct hw *hw = mgr->hw;
652 hw->daio_mgr_set_imaparc(mgr->ctrl_blk, entry->slot);
653 hw->daio_mgr_set_imapnxt(mgr->ctrl_blk, entry->next);
654 hw->daio_mgr_set_imapaddr(mgr->ctrl_blk, entry->addr);
655 hw->daio_mgr_commit_write(mgr->hw, mgr->ctrl_blk);
660 static int daio_imap_add(struct daio_mgr *mgr, struct imapper *entry)
665 spin_lock_irqsave(&mgr->imap_lock, flags);
666 if ((0 == entry->addr) && (mgr->init_imap_added)) {
667 input_mapper_delete(&mgr->imappers, mgr->init_imap,
669 mgr->init_imap_added = 0;
671 err = input_mapper_add(&mgr->imappers, entry, daio_map_op, mgr);
672 spin_unlock_irqrestore(&mgr->imap_lock, flags);
677 static int daio_imap_delete(struct daio_mgr *mgr, struct imapper *entry)
682 spin_lock_irqsave(&mgr->imap_lock, flags);
683 err = input_mapper_delete(&mgr->imappers, entry, daio_map_op, mgr);
684 if (list_empty(&mgr->imappers)) {
685 input_mapper_add(&mgr->imappers, mgr->init_imap,
687 mgr->init_imap_added = 1;
689 spin_unlock_irqrestore(&mgr->imap_lock, flags);
694 static int daio_mgr_commit_write(struct daio_mgr *mgr)
696 struct hw *hw = mgr->mgr.hw;
698 hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk);
702 int daio_mgr_create(void *hw, struct daio_mgr **rdaio_mgr)
705 struct daio_mgr *daio_mgr;
706 struct imapper *entry;
709 daio_mgr = kzalloc(sizeof(*daio_mgr), GFP_KERNEL);
710 if (NULL == daio_mgr)
713 err = rsc_mgr_init(&daio_mgr->mgr, DAIO, DAIO_RESOURCE_NUM, hw);
717 spin_lock_init(&daio_mgr->mgr_lock);
718 spin_lock_init(&daio_mgr->imap_lock);
719 INIT_LIST_HEAD(&daio_mgr->imappers);
720 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
725 entry->slot = entry->addr = entry->next = entry->user = 0;
726 list_add(&entry->list, &daio_mgr->imappers);
727 daio_mgr->init_imap = entry;
728 daio_mgr->init_imap_added = 1;
730 daio_mgr->get_daio = get_daio_rsc;
731 daio_mgr->put_daio = put_daio_rsc;
732 daio_mgr->daio_enable = daio_mgr_enb_daio;
733 daio_mgr->daio_disable = daio_mgr_dsb_daio;
734 daio_mgr->imap_add = daio_imap_add;
735 daio_mgr->imap_delete = daio_imap_delete;
736 daio_mgr->commit_write = daio_mgr_commit_write;
738 for (i = 0; i < 8; i++) {
739 ((struct hw *)hw)->daio_mgr_dsb_dao(daio_mgr->mgr.ctrl_blk, i);
740 ((struct hw *)hw)->daio_mgr_dsb_dai(daio_mgr->mgr.ctrl_blk, i);
742 ((struct hw *)hw)->daio_mgr_commit_write(hw, daio_mgr->mgr.ctrl_blk);
744 *rdaio_mgr = daio_mgr;
749 rsc_mgr_uninit(&daio_mgr->mgr);
755 int daio_mgr_destroy(struct daio_mgr *daio_mgr)
759 /* free daio input mapper list */
760 spin_lock_irqsave(&daio_mgr->imap_lock, flags);
761 free_input_mapper_list(&daio_mgr->imappers);
762 spin_unlock_irqrestore(&daio_mgr->imap_lock, flags);
764 rsc_mgr_uninit(&daio_mgr->mgr);