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8cc72361 WYC |
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_RESOURCE_NUM NUM_DAIOTYP | |
26 | #define DAIO_OUT_MAX SPDIFOO | |
27 | ||
28 | union daio_usage { | |
29 | struct { | |
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; | |
38 | } bf; | |
39 | unsigned short data; | |
40 | }; | |
41 | ||
42 | struct daio_rsc_idx { | |
43 | unsigned short left; | |
44 | unsigned short right; | |
45 | }; | |
46 | ||
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}, | |
56 | }; | |
57 | ||
58 | struct daio_rsc_idx idx_20k2[NUM_DAIOTYP] = { | |
59 | [LINEO1] = {.left = 0x40, .right = 0x41}, | |
55fe27f7 | 60 | [LINEO2] = {.left = 0x60, .right = 0x61}, |
8cc72361 | 61 | [LINEO3] = {.left = 0x50, .right = 0x51}, |
55fe27f7 | 62 | [LINEO4] = {.left = 0x70, .right = 0x71}, |
8cc72361 WYC |
63 | [LINEIM] = {.left = 0x45, .right = 0xc5}, |
64 | [SPDIFOO] = {.left = 0x00, .right = 0x01}, | |
65 | [SPDIFIO] = {.left = 0x05, .right = 0x85}, | |
66 | }; | |
67 | ||
68 | static int daio_master(struct rsc *rsc) | |
69 | { | |
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; | |
74 | } | |
75 | ||
76 | static int daio_index(const struct rsc *rsc) | |
77 | { | |
78 | return rsc->conj; | |
79 | } | |
80 | ||
81 | static int daio_out_next_conj(struct rsc *rsc) | |
82 | { | |
83 | return rsc->conj += 2; | |
84 | } | |
85 | ||
86 | static int daio_in_next_conj_20k1(struct rsc *rsc) | |
87 | { | |
88 | return rsc->conj += 0x200; | |
89 | } | |
90 | ||
91 | static int daio_in_next_conj_20k2(struct rsc *rsc) | |
92 | { | |
93 | return rsc->conj += 0x100; | |
94 | } | |
95 | ||
96 | static struct rsc_ops daio_out_rsc_ops = { | |
97 | .master = daio_master, | |
98 | .next_conj = daio_out_next_conj, | |
99 | .index = daio_index, | |
100 | .output_slot = NULL, | |
101 | }; | |
102 | ||
103 | static struct rsc_ops daio_in_rsc_ops_20k1 = { | |
104 | .master = daio_master, | |
105 | .next_conj = daio_in_next_conj_20k1, | |
106 | .index = NULL, | |
107 | .output_slot = daio_index, | |
108 | }; | |
109 | ||
110 | static struct rsc_ops daio_in_rsc_ops_20k2 = { | |
111 | .master = daio_master, | |
112 | .next_conj = daio_in_next_conj_20k2, | |
113 | .index = NULL, | |
114 | .output_slot = daio_index, | |
115 | }; | |
116 | ||
117 | static unsigned int daio_device_index(enum DAIOTYP type, struct hw *hw) | |
118 | { | |
9470195a | 119 | switch (hw->chip_type) { |
8cc72361 WYC |
120 | case ATC20K1: |
121 | switch (type) { | |
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; | |
131 | } | |
132 | case ATC20K2: | |
133 | switch (type) { | |
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; | |
142 | } | |
143 | default: | |
144 | return -EINVAL; | |
145 | } | |
146 | } | |
147 | ||
148 | static int dao_rsc_reinit(struct dao *dao, const struct dao_desc *desc); | |
149 | ||
150 | static int dao_spdif_get_spos(struct dao *dao, unsigned int *spos) | |
151 | { | |
152 | ((struct hw *)dao->hw)->dao_get_spos(dao->ctrl_blk, spos); | |
153 | return 0; | |
154 | } | |
155 | ||
156 | static int dao_spdif_set_spos(struct dao *dao, unsigned int spos) | |
157 | { | |
158 | ((struct hw *)dao->hw)->dao_set_spos(dao->ctrl_blk, spos); | |
159 | return 0; | |
160 | } | |
161 | ||
162 | static int dao_commit_write(struct dao *dao) | |
163 | { | |
164 | ((struct hw *)dao->hw)->dao_commit_write(dao->hw, | |
165 | daio_device_index(dao->daio.type, dao->hw), dao->ctrl_blk); | |
166 | return 0; | |
167 | } | |
168 | ||
169 | static int dao_set_left_input(struct dao *dao, struct rsc *input) | |
170 | { | |
514eef9c | 171 | struct imapper *entry; |
8cc72361 | 172 | struct daio *daio = &dao->daio; |
514eef9c | 173 | int i; |
8cc72361 WYC |
174 | |
175 | entry = kzalloc((sizeof(*entry) * daio->rscl.msr), GFP_KERNEL); | |
35ebf6e7 | 176 | if (!entry) |
8cc72361 WYC |
177 | return -ENOMEM; |
178 | ||
efed5f26 | 179 | dao->ops->clear_left_input(dao); |
8cc72361 WYC |
180 | /* Program master and conjugate resources */ |
181 | input->ops->master(input); | |
182 | daio->rscl.ops->master(&daio->rscl); | |
183 | for (i = 0; i < daio->rscl.msr; i++, entry++) { | |
184 | entry->slot = input->ops->output_slot(input); | |
185 | entry->user = entry->addr = daio->rscl.ops->index(&daio->rscl); | |
186 | dao->mgr->imap_add(dao->mgr, entry); | |
187 | dao->imappers[i] = entry; | |
188 | ||
189 | input->ops->next_conj(input); | |
190 | daio->rscl.ops->next_conj(&daio->rscl); | |
191 | } | |
192 | input->ops->master(input); | |
193 | daio->rscl.ops->master(&daio->rscl); | |
194 | ||
195 | return 0; | |
196 | } | |
197 | ||
198 | static int dao_set_right_input(struct dao *dao, struct rsc *input) | |
199 | { | |
514eef9c | 200 | struct imapper *entry; |
8cc72361 | 201 | struct daio *daio = &dao->daio; |
514eef9c | 202 | int i; |
8cc72361 WYC |
203 | |
204 | entry = kzalloc((sizeof(*entry) * daio->rscr.msr), GFP_KERNEL); | |
35ebf6e7 | 205 | if (!entry) |
8cc72361 WYC |
206 | return -ENOMEM; |
207 | ||
efed5f26 | 208 | dao->ops->clear_right_input(dao); |
8cc72361 WYC |
209 | /* Program master and conjugate resources */ |
210 | input->ops->master(input); | |
211 | daio->rscr.ops->master(&daio->rscr); | |
212 | for (i = 0; i < daio->rscr.msr; i++, entry++) { | |
213 | entry->slot = input->ops->output_slot(input); | |
214 | entry->user = entry->addr = daio->rscr.ops->index(&daio->rscr); | |
215 | dao->mgr->imap_add(dao->mgr, entry); | |
216 | dao->imappers[daio->rscl.msr + i] = entry; | |
217 | ||
218 | input->ops->next_conj(input); | |
219 | daio->rscr.ops->next_conj(&daio->rscr); | |
220 | } | |
221 | input->ops->master(input); | |
222 | daio->rscr.ops->master(&daio->rscr); | |
223 | ||
224 | return 0; | |
225 | } | |
226 | ||
227 | static int dao_clear_left_input(struct dao *dao) | |
228 | { | |
514eef9c | 229 | struct imapper *entry; |
8cc72361 | 230 | struct daio *daio = &dao->daio; |
514eef9c | 231 | int i; |
8cc72361 | 232 | |
35ebf6e7 | 233 | if (!dao->imappers[0]) |
8cc72361 WYC |
234 | return 0; |
235 | ||
236 | entry = dao->imappers[0]; | |
237 | dao->mgr->imap_delete(dao->mgr, entry); | |
238 | /* Program conjugate resources */ | |
239 | for (i = 1; i < daio->rscl.msr; i++) { | |
240 | entry = dao->imappers[i]; | |
241 | dao->mgr->imap_delete(dao->mgr, entry); | |
242 | dao->imappers[i] = NULL; | |
243 | } | |
244 | ||
245 | kfree(dao->imappers[0]); | |
246 | dao->imappers[0] = NULL; | |
247 | ||
248 | return 0; | |
249 | } | |
250 | ||
251 | static int dao_clear_right_input(struct dao *dao) | |
252 | { | |
514eef9c | 253 | struct imapper *entry; |
8cc72361 | 254 | struct daio *daio = &dao->daio; |
514eef9c | 255 | int i; |
8cc72361 | 256 | |
35ebf6e7 | 257 | if (!dao->imappers[daio->rscl.msr]) |
8cc72361 WYC |
258 | return 0; |
259 | ||
260 | entry = dao->imappers[daio->rscl.msr]; | |
261 | dao->mgr->imap_delete(dao->mgr, entry); | |
262 | /* Program conjugate resources */ | |
263 | for (i = 1; i < daio->rscr.msr; i++) { | |
264 | entry = dao->imappers[daio->rscl.msr + i]; | |
265 | dao->mgr->imap_delete(dao->mgr, entry); | |
266 | dao->imappers[daio->rscl.msr + i] = NULL; | |
267 | } | |
268 | ||
269 | kfree(dao->imappers[daio->rscl.msr]); | |
270 | dao->imappers[daio->rscl.msr] = NULL; | |
271 | ||
272 | return 0; | |
273 | } | |
274 | ||
275 | static struct dao_rsc_ops dao_ops = { | |
276 | .set_spos = dao_spdif_set_spos, | |
277 | .commit_write = dao_commit_write, | |
278 | .get_spos = dao_spdif_get_spos, | |
279 | .reinit = dao_rsc_reinit, | |
280 | .set_left_input = dao_set_left_input, | |
281 | .set_right_input = dao_set_right_input, | |
282 | .clear_left_input = dao_clear_left_input, | |
283 | .clear_right_input = dao_clear_right_input, | |
284 | }; | |
285 | ||
286 | static int dai_set_srt_srcl(struct dai *dai, struct rsc *src) | |
287 | { | |
288 | src->ops->master(src); | |
289 | ((struct hw *)dai->hw)->dai_srt_set_srcm(dai->ctrl_blk, | |
290 | src->ops->index(src)); | |
291 | return 0; | |
292 | } | |
293 | ||
294 | static int dai_set_srt_srcr(struct dai *dai, struct rsc *src) | |
295 | { | |
296 | src->ops->master(src); | |
297 | ((struct hw *)dai->hw)->dai_srt_set_srco(dai->ctrl_blk, | |
298 | src->ops->index(src)); | |
299 | return 0; | |
300 | } | |
301 | ||
302 | static int dai_set_srt_msr(struct dai *dai, unsigned int msr) | |
303 | { | |
514eef9c | 304 | unsigned int rsr; |
8cc72361 WYC |
305 | |
306 | for (rsr = 0; msr > 1; msr >>= 1) | |
307 | rsr++; | |
308 | ||
309 | ((struct hw *)dai->hw)->dai_srt_set_rsr(dai->ctrl_blk, rsr); | |
310 | return 0; | |
311 | } | |
312 | ||
313 | static int dai_set_enb_src(struct dai *dai, unsigned int enb) | |
314 | { | |
315 | ((struct hw *)dai->hw)->dai_srt_set_ec(dai->ctrl_blk, enb); | |
316 | return 0; | |
317 | } | |
318 | ||
319 | static int dai_set_enb_srt(struct dai *dai, unsigned int enb) | |
320 | { | |
321 | ((struct hw *)dai->hw)->dai_srt_set_et(dai->ctrl_blk, enb); | |
322 | return 0; | |
323 | } | |
324 | ||
325 | static int dai_commit_write(struct dai *dai) | |
326 | { | |
327 | ((struct hw *)dai->hw)->dai_commit_write(dai->hw, | |
328 | daio_device_index(dai->daio.type, dai->hw), dai->ctrl_blk); | |
329 | return 0; | |
330 | } | |
331 | ||
332 | static struct dai_rsc_ops dai_ops = { | |
333 | .set_srt_srcl = dai_set_srt_srcl, | |
334 | .set_srt_srcr = dai_set_srt_srcr, | |
335 | .set_srt_msr = dai_set_srt_msr, | |
336 | .set_enb_src = dai_set_enb_src, | |
337 | .set_enb_srt = dai_set_enb_srt, | |
338 | .commit_write = dai_commit_write, | |
339 | }; | |
340 | ||
341 | static int daio_rsc_init(struct daio *daio, | |
342 | const struct daio_desc *desc, | |
343 | void *hw) | |
344 | { | |
514eef9c TI |
345 | int err; |
346 | unsigned int idx_l, idx_r; | |
8cc72361 | 347 | |
9470195a | 348 | switch (((struct hw *)hw)->chip_type) { |
8cc72361 WYC |
349 | case ATC20K1: |
350 | idx_l = idx_20k1[desc->type].left; | |
351 | idx_r = idx_20k1[desc->type].right; | |
352 | break; | |
353 | case ATC20K2: | |
354 | idx_l = idx_20k2[desc->type].left; | |
355 | idx_r = idx_20k2[desc->type].right; | |
356 | break; | |
357 | default: | |
358 | return -EINVAL; | |
359 | } | |
360 | err = rsc_init(&daio->rscl, idx_l, DAIO, desc->msr, hw); | |
361 | if (err) | |
362 | return err; | |
363 | ||
364 | err = rsc_init(&daio->rscr, idx_r, DAIO, desc->msr, hw); | |
365 | if (err) | |
366 | goto error1; | |
367 | ||
368 | /* Set daio->rscl/r->ops to daio specific ones */ | |
369 | if (desc->type <= DAIO_OUT_MAX) { | |
370 | daio->rscl.ops = daio->rscr.ops = &daio_out_rsc_ops; | |
371 | } else { | |
9470195a | 372 | switch (((struct hw *)hw)->chip_type) { |
8cc72361 WYC |
373 | case ATC20K1: |
374 | daio->rscl.ops = daio->rscr.ops = &daio_in_rsc_ops_20k1; | |
375 | break; | |
376 | case ATC20K2: | |
377 | daio->rscl.ops = daio->rscr.ops = &daio_in_rsc_ops_20k2; | |
378 | break; | |
379 | default: | |
380 | break; | |
381 | } | |
382 | } | |
383 | daio->type = desc->type; | |
384 | ||
385 | return 0; | |
386 | ||
387 | error1: | |
388 | rsc_uninit(&daio->rscl); | |
389 | return err; | |
390 | } | |
391 | ||
392 | static int daio_rsc_uninit(struct daio *daio) | |
393 | { | |
394 | rsc_uninit(&daio->rscl); | |
395 | rsc_uninit(&daio->rscr); | |
396 | ||
397 | return 0; | |
398 | } | |
399 | ||
400 | static int dao_rsc_init(struct dao *dao, | |
401 | const struct daio_desc *desc, | |
402 | struct daio_mgr *mgr) | |
403 | { | |
404 | struct hw *hw = mgr->mgr.hw; | |
514eef9c TI |
405 | unsigned int conf; |
406 | int err; | |
8cc72361 WYC |
407 | |
408 | err = daio_rsc_init(&dao->daio, desc, mgr->mgr.hw); | |
409 | if (err) | |
410 | return err; | |
411 | ||
412 | dao->imappers = kzalloc(sizeof(void *)*desc->msr*2, GFP_KERNEL); | |
35ebf6e7 | 413 | if (!dao->imappers) { |
8cc72361 WYC |
414 | err = -ENOMEM; |
415 | goto error1; | |
416 | } | |
417 | dao->ops = &dao_ops; | |
418 | dao->mgr = mgr; | |
419 | dao->hw = hw; | |
420 | err = hw->dao_get_ctrl_blk(&dao->ctrl_blk); | |
421 | if (err) | |
422 | goto error2; | |
423 | ||
424 | hw->daio_mgr_dsb_dao(mgr->mgr.ctrl_blk, | |
425 | daio_device_index(dao->daio.type, hw)); | |
426 | hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk); | |
427 | ||
514eef9c | 428 | conf = (desc->msr & 0x7) | (desc->passthru << 3); |
8cc72361 WYC |
429 | hw->daio_mgr_dao_init(mgr->mgr.ctrl_blk, |
430 | daio_device_index(dao->daio.type, hw), conf); | |
431 | hw->daio_mgr_enb_dao(mgr->mgr.ctrl_blk, | |
432 | daio_device_index(dao->daio.type, hw)); | |
433 | hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk); | |
434 | ||
435 | return 0; | |
436 | ||
437 | error2: | |
438 | kfree(dao->imappers); | |
439 | dao->imappers = NULL; | |
440 | error1: | |
441 | daio_rsc_uninit(&dao->daio); | |
442 | return err; | |
443 | } | |
444 | ||
445 | static int dao_rsc_uninit(struct dao *dao) | |
446 | { | |
35ebf6e7 TI |
447 | if (dao->imappers) { |
448 | if (dao->imappers[0]) | |
8cc72361 WYC |
449 | dao_clear_left_input(dao); |
450 | ||
35ebf6e7 | 451 | if (dao->imappers[dao->daio.rscl.msr]) |
8cc72361 WYC |
452 | dao_clear_right_input(dao); |
453 | ||
454 | kfree(dao->imappers); | |
455 | dao->imappers = NULL; | |
456 | } | |
457 | ((struct hw *)dao->hw)->dao_put_ctrl_blk(dao->ctrl_blk); | |
458 | dao->hw = dao->ctrl_blk = NULL; | |
459 | daio_rsc_uninit(&dao->daio); | |
460 | ||
461 | return 0; | |
462 | } | |
463 | ||
464 | static int dao_rsc_reinit(struct dao *dao, const struct dao_desc *desc) | |
465 | { | |
466 | struct daio_mgr *mgr = dao->mgr; | |
467 | struct daio_desc dsc = {0}; | |
468 | ||
469 | dsc.type = dao->daio.type; | |
470 | dsc.msr = desc->msr; | |
471 | dsc.passthru = desc->passthru; | |
472 | dao_rsc_uninit(dao); | |
473 | return dao_rsc_init(dao, &dsc, mgr); | |
474 | } | |
475 | ||
476 | static int dai_rsc_init(struct dai *dai, | |
477 | const struct daio_desc *desc, | |
478 | struct daio_mgr *mgr) | |
479 | { | |
514eef9c | 480 | int err; |
8cc72361 | 481 | struct hw *hw = mgr->mgr.hw; |
514eef9c | 482 | unsigned int rsr, msr; |
8cc72361 WYC |
483 | |
484 | err = daio_rsc_init(&dai->daio, desc, mgr->mgr.hw); | |
485 | if (err) | |
486 | return err; | |
487 | ||
488 | dai->ops = &dai_ops; | |
489 | dai->hw = mgr->mgr.hw; | |
490 | err = hw->dai_get_ctrl_blk(&dai->ctrl_blk); | |
491 | if (err) | |
492 | goto error1; | |
493 | ||
494 | for (rsr = 0, msr = desc->msr; msr > 1; msr >>= 1) | |
495 | rsr++; | |
496 | ||
497 | hw->dai_srt_set_rsr(dai->ctrl_blk, rsr); | |
498 | hw->dai_srt_set_drat(dai->ctrl_blk, 0); | |
499 | /* default to disabling control of a SRC */ | |
500 | hw->dai_srt_set_ec(dai->ctrl_blk, 0); | |
501 | hw->dai_srt_set_et(dai->ctrl_blk, 0); /* default to disabling SRT */ | |
502 | hw->dai_commit_write(hw, | |
503 | daio_device_index(dai->daio.type, dai->hw), dai->ctrl_blk); | |
504 | ||
505 | return 0; | |
506 | ||
507 | error1: | |
508 | daio_rsc_uninit(&dai->daio); | |
509 | return err; | |
510 | } | |
511 | ||
512 | static int dai_rsc_uninit(struct dai *dai) | |
513 | { | |
514 | ((struct hw *)dai->hw)->dai_put_ctrl_blk(dai->ctrl_blk); | |
515 | dai->hw = dai->ctrl_blk = NULL; | |
516 | daio_rsc_uninit(&dai->daio); | |
517 | return 0; | |
518 | } | |
519 | ||
520 | static int daio_mgr_get_rsc(struct rsc_mgr *mgr, enum DAIOTYP type) | |
521 | { | |
522 | if (((union daio_usage *)mgr->rscs)->data & (0x1 << type)) | |
523 | return -ENOENT; | |
524 | ||
525 | ((union daio_usage *)mgr->rscs)->data |= (0x1 << type); | |
526 | ||
527 | return 0; | |
528 | } | |
529 | ||
530 | static int daio_mgr_put_rsc(struct rsc_mgr *mgr, enum DAIOTYP type) | |
531 | { | |
532 | ((union daio_usage *)mgr->rscs)->data &= ~(0x1 << type); | |
533 | ||
534 | return 0; | |
535 | } | |
536 | ||
537 | static int get_daio_rsc(struct daio_mgr *mgr, | |
538 | const struct daio_desc *desc, | |
539 | struct daio **rdaio) | |
540 | { | |
514eef9c | 541 | int err; |
8cc72361 WYC |
542 | struct dai *dai = NULL; |
543 | struct dao *dao = NULL; | |
544 | unsigned long flags; | |
545 | ||
546 | *rdaio = NULL; | |
547 | ||
548 | /* Check whether there are sufficient daio resources to meet request. */ | |
549 | spin_lock_irqsave(&mgr->mgr_lock, flags); | |
550 | err = daio_mgr_get_rsc(&mgr->mgr, desc->type); | |
551 | spin_unlock_irqrestore(&mgr->mgr_lock, flags); | |
552 | if (err) { | |
553 | printk(KERN_ERR "Can't meet DAIO resource request!\n"); | |
554 | return err; | |
555 | } | |
556 | ||
557 | /* Allocate mem for daio resource */ | |
558 | if (desc->type <= DAIO_OUT_MAX) { | |
559 | dao = kzalloc(sizeof(*dao), GFP_KERNEL); | |
35ebf6e7 | 560 | if (!dao) { |
8cc72361 WYC |
561 | err = -ENOMEM; |
562 | goto error; | |
563 | } | |
564 | err = dao_rsc_init(dao, desc, mgr); | |
565 | if (err) | |
566 | goto error; | |
567 | ||
568 | *rdaio = &dao->daio; | |
569 | } else { | |
570 | dai = kzalloc(sizeof(*dai), GFP_KERNEL); | |
35ebf6e7 | 571 | if (!dai) { |
8cc72361 WYC |
572 | err = -ENOMEM; |
573 | goto error; | |
574 | } | |
575 | err = dai_rsc_init(dai, desc, mgr); | |
576 | if (err) | |
577 | goto error; | |
578 | ||
579 | *rdaio = &dai->daio; | |
580 | } | |
581 | ||
582 | mgr->daio_enable(mgr, *rdaio); | |
583 | mgr->commit_write(mgr); | |
584 | ||
585 | return 0; | |
586 | ||
587 | error: | |
35ebf6e7 | 588 | if (dao) |
8cc72361 | 589 | kfree(dao); |
35ebf6e7 | 590 | else if (dai) |
8cc72361 WYC |
591 | kfree(dai); |
592 | ||
593 | spin_lock_irqsave(&mgr->mgr_lock, flags); | |
594 | daio_mgr_put_rsc(&mgr->mgr, desc->type); | |
595 | spin_unlock_irqrestore(&mgr->mgr_lock, flags); | |
596 | return err; | |
597 | } | |
598 | ||
599 | static int put_daio_rsc(struct daio_mgr *mgr, struct daio *daio) | |
600 | { | |
601 | unsigned long flags; | |
602 | ||
603 | mgr->daio_disable(mgr, daio); | |
604 | mgr->commit_write(mgr); | |
605 | ||
606 | spin_lock_irqsave(&mgr->mgr_lock, flags); | |
607 | daio_mgr_put_rsc(&mgr->mgr, daio->type); | |
608 | spin_unlock_irqrestore(&mgr->mgr_lock, flags); | |
609 | ||
610 | if (daio->type <= DAIO_OUT_MAX) { | |
611 | dao_rsc_uninit(container_of(daio, struct dao, daio)); | |
612 | kfree(container_of(daio, struct dao, daio)); | |
613 | } else { | |
614 | dai_rsc_uninit(container_of(daio, struct dai, daio)); | |
615 | kfree(container_of(daio, struct dai, daio)); | |
616 | } | |
617 | ||
618 | return 0; | |
619 | } | |
620 | ||
621 | static int daio_mgr_enb_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_enb_dao(mgr->mgr.ctrl_blk, | |
627 | daio_device_index(daio->type, hw)); | |
628 | } else { | |
629 | hw->daio_mgr_enb_dai(mgr->mgr.ctrl_blk, | |
630 | daio_device_index(daio->type, hw)); | |
631 | } | |
632 | return 0; | |
633 | } | |
634 | ||
635 | static int daio_mgr_dsb_daio(struct daio_mgr *mgr, struct daio *daio) | |
636 | { | |
637 | struct hw *hw = mgr->mgr.hw; | |
638 | ||
639 | if (DAIO_OUT_MAX >= daio->type) { | |
640 | hw->daio_mgr_dsb_dao(mgr->mgr.ctrl_blk, | |
641 | daio_device_index(daio->type, hw)); | |
642 | } else { | |
643 | hw->daio_mgr_dsb_dai(mgr->mgr.ctrl_blk, | |
644 | daio_device_index(daio->type, hw)); | |
645 | } | |
646 | return 0; | |
647 | } | |
648 | ||
649 | static int daio_map_op(void *data, struct imapper *entry) | |
650 | { | |
651 | struct rsc_mgr *mgr = &((struct daio_mgr *)data)->mgr; | |
652 | struct hw *hw = mgr->hw; | |
653 | ||
654 | hw->daio_mgr_set_imaparc(mgr->ctrl_blk, entry->slot); | |
655 | hw->daio_mgr_set_imapnxt(mgr->ctrl_blk, entry->next); | |
656 | hw->daio_mgr_set_imapaddr(mgr->ctrl_blk, entry->addr); | |
657 | hw->daio_mgr_commit_write(mgr->hw, mgr->ctrl_blk); | |
658 | ||
659 | return 0; | |
660 | } | |
661 | ||
662 | static int daio_imap_add(struct daio_mgr *mgr, struct imapper *entry) | |
663 | { | |
664 | unsigned long flags; | |
514eef9c | 665 | int err; |
8cc72361 WYC |
666 | |
667 | spin_lock_irqsave(&mgr->imap_lock, flags); | |
35ebf6e7 | 668 | if (!entry->addr && mgr->init_imap_added) { |
8cc72361 WYC |
669 | input_mapper_delete(&mgr->imappers, mgr->init_imap, |
670 | daio_map_op, mgr); | |
671 | mgr->init_imap_added = 0; | |
672 | } | |
673 | err = input_mapper_add(&mgr->imappers, entry, daio_map_op, mgr); | |
674 | spin_unlock_irqrestore(&mgr->imap_lock, flags); | |
675 | ||
676 | return err; | |
677 | } | |
678 | ||
679 | static int daio_imap_delete(struct daio_mgr *mgr, struct imapper *entry) | |
680 | { | |
681 | unsigned long flags; | |
514eef9c | 682 | int err; |
8cc72361 WYC |
683 | |
684 | spin_lock_irqsave(&mgr->imap_lock, flags); | |
685 | err = input_mapper_delete(&mgr->imappers, entry, daio_map_op, mgr); | |
686 | if (list_empty(&mgr->imappers)) { | |
687 | input_mapper_add(&mgr->imappers, mgr->init_imap, | |
688 | daio_map_op, mgr); | |
689 | mgr->init_imap_added = 1; | |
690 | } | |
691 | spin_unlock_irqrestore(&mgr->imap_lock, flags); | |
692 | ||
693 | return err; | |
694 | } | |
695 | ||
696 | static int daio_mgr_commit_write(struct daio_mgr *mgr) | |
697 | { | |
698 | struct hw *hw = mgr->mgr.hw; | |
699 | ||
700 | hw->daio_mgr_commit_write(hw, mgr->mgr.ctrl_blk); | |
701 | return 0; | |
702 | } | |
703 | ||
704 | int daio_mgr_create(void *hw, struct daio_mgr **rdaio_mgr) | |
705 | { | |
514eef9c | 706 | int err, i; |
8cc72361 WYC |
707 | struct daio_mgr *daio_mgr; |
708 | struct imapper *entry; | |
709 | ||
710 | *rdaio_mgr = NULL; | |
711 | daio_mgr = kzalloc(sizeof(*daio_mgr), GFP_KERNEL); | |
35ebf6e7 | 712 | if (!daio_mgr) |
8cc72361 WYC |
713 | return -ENOMEM; |
714 | ||
715 | err = rsc_mgr_init(&daio_mgr->mgr, DAIO, DAIO_RESOURCE_NUM, hw); | |
716 | if (err) | |
717 | goto error1; | |
718 | ||
719 | spin_lock_init(&daio_mgr->mgr_lock); | |
720 | spin_lock_init(&daio_mgr->imap_lock); | |
721 | INIT_LIST_HEAD(&daio_mgr->imappers); | |
722 | entry = kzalloc(sizeof(*entry), GFP_KERNEL); | |
35ebf6e7 | 723 | if (!entry) { |
8cc72361 WYC |
724 | err = -ENOMEM; |
725 | goto error2; | |
726 | } | |
727 | entry->slot = entry->addr = entry->next = entry->user = 0; | |
728 | list_add(&entry->list, &daio_mgr->imappers); | |
729 | daio_mgr->init_imap = entry; | |
730 | daio_mgr->init_imap_added = 1; | |
731 | ||
732 | daio_mgr->get_daio = get_daio_rsc; | |
733 | daio_mgr->put_daio = put_daio_rsc; | |
734 | daio_mgr->daio_enable = daio_mgr_enb_daio; | |
735 | daio_mgr->daio_disable = daio_mgr_dsb_daio; | |
736 | daio_mgr->imap_add = daio_imap_add; | |
737 | daio_mgr->imap_delete = daio_imap_delete; | |
738 | daio_mgr->commit_write = daio_mgr_commit_write; | |
739 | ||
740 | for (i = 0; i < 8; i++) { | |
741 | ((struct hw *)hw)->daio_mgr_dsb_dao(daio_mgr->mgr.ctrl_blk, i); | |
742 | ((struct hw *)hw)->daio_mgr_dsb_dai(daio_mgr->mgr.ctrl_blk, i); | |
743 | } | |
744 | ((struct hw *)hw)->daio_mgr_commit_write(hw, daio_mgr->mgr.ctrl_blk); | |
745 | ||
746 | *rdaio_mgr = daio_mgr; | |
747 | ||
748 | return 0; | |
749 | ||
750 | error2: | |
751 | rsc_mgr_uninit(&daio_mgr->mgr); | |
752 | error1: | |
753 | kfree(daio_mgr); | |
754 | return err; | |
755 | } | |
756 | ||
757 | int daio_mgr_destroy(struct daio_mgr *daio_mgr) | |
758 | { | |
759 | unsigned long flags; | |
760 | ||
761 | /* free daio input mapper list */ | |
762 | spin_lock_irqsave(&daio_mgr->imap_lock, flags); | |
763 | free_input_mapper_list(&daio_mgr->imappers); | |
764 | spin_unlock_irqrestore(&daio_mgr->imap_lock, flags); | |
765 | ||
766 | rsc_mgr_uninit(&daio_mgr->mgr); | |
767 | kfree(daio_mgr); | |
768 | ||
769 | return 0; | |
770 | } | |
771 |