Commit | Line | Data |
---|---|---|
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 | ||
8cc72361 WYC |
25 | #define DAIO_OUT_MAX SPDIFOO |
26 | ||
55309216 | 27 | struct daio_usage { |
8cc72361 WYC |
28 | unsigned short data; |
29 | }; | |
30 | ||
31 | struct daio_rsc_idx { | |
32 | unsigned short left; | |
33 | unsigned short right; | |
34 | }; | |
35 | ||
36 | 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 | struct daio_rsc_idx idx_20k2[NUM_DAIOTYP] = { | |
48 | [LINEO1] = {.left = 0x40, .right = 0x41}, | |
55fe27f7 | 49 | [LINEO2] = {.left = 0x60, .right = 0x61}, |
8cc72361 | 50 | [LINEO3] = {.left = 0x50, .right = 0x51}, |
55fe27f7 | 51 | [LINEO4] = {.left = 0x70, .right = 0x71}, |
8cc72361 | 52 | [LINEIM] = {.left = 0x45, .right = 0xc5}, |
55309216 | 53 | [MIC] = {.left = 0x55, .right = 0xd5}, |
8cc72361 WYC |
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 | { | |
9470195a | 109 | switch (hw->chip_type) { |
8cc72361 WYC |
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; | |
55309216 | 131 | case MIC: return 5; |
8cc72361 WYC |
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 | { | |
514eef9c | 162 | struct imapper *entry; |
8cc72361 | 163 | struct daio *daio = &dao->daio; |
514eef9c | 164 | int i; |
8cc72361 WYC |
165 | |
166 | entry = kzalloc((sizeof(*entry) * daio->rscl.msr), GFP_KERNEL); | |
35ebf6e7 | 167 | if (!entry) |
8cc72361 WYC |
168 | return -ENOMEM; |
169 | ||
efed5f26 | 170 | dao->ops->clear_left_input(dao); |
8cc72361 WYC |
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 | { | |
514eef9c | 191 | struct imapper *entry; |
8cc72361 | 192 | struct daio *daio = &dao->daio; |
514eef9c | 193 | int i; |
8cc72361 WYC |
194 | |
195 | entry = kzalloc((sizeof(*entry) * daio->rscr.msr), GFP_KERNEL); | |
35ebf6e7 | 196 | if (!entry) |
8cc72361 WYC |
197 | return -ENOMEM; |
198 | ||
efed5f26 | 199 | dao->ops->clear_right_input(dao); |
8cc72361 WYC |
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 | { | |
514eef9c | 220 | struct imapper *entry; |
8cc72361 | 221 | struct daio *daio = &dao->daio; |
514eef9c | 222 | int i; |
8cc72361 | 223 | |
35ebf6e7 | 224 | if (!dao->imappers[0]) |
8cc72361 WYC |
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 | { | |
514eef9c | 244 | struct imapper *entry; |
8cc72361 | 245 | struct daio *daio = &dao->daio; |
514eef9c | 246 | int i; |
8cc72361 | 247 | |
35ebf6e7 | 248 | if (!dao->imappers[daio->rscl.msr]) |
8cc72361 WYC |
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 | { | |
514eef9c | 295 | unsigned int rsr; |
8cc72361 WYC |
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 | { | |
514eef9c TI |
336 | int err; |
337 | unsigned int idx_l, idx_r; | |
8cc72361 | 338 | |
9470195a | 339 | switch (((struct hw *)hw)->chip_type) { |
8cc72361 WYC |
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 { | |
9470195a | 363 | switch (((struct hw *)hw)->chip_type) { |
8cc72361 WYC |
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; | |
514eef9c TI |
396 | unsigned int conf; |
397 | int err; | |
8cc72361 WYC |
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); | |
35ebf6e7 | 404 | if (!dao->imappers) { |
8cc72361 WYC |
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 | ||
514eef9c | 419 | conf = (desc->msr & 0x7) | (desc->passthru << 3); |
8cc72361 WYC |
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 | { | |
35ebf6e7 TI |
438 | if (dao->imappers) { |
439 | if (dao->imappers[0]) | |
8cc72361 WYC |
440 | dao_clear_left_input(dao); |
441 | ||
35ebf6e7 | 442 | if (dao->imappers[dao->daio.rscl.msr]) |
8cc72361 WYC |
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 | { | |
514eef9c | 471 | int err; |
8cc72361 | 472 | struct hw *hw = mgr->mgr.hw; |
514eef9c | 473 | unsigned int rsr, msr; |
8cc72361 WYC |
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 | { | |
55309216 | 513 | if (((struct daio_usage *)mgr->rscs)->data & (0x1 << type)) |
8cc72361 WYC |
514 | return -ENOENT; |
515 | ||
55309216 | 516 | ((struct daio_usage *)mgr->rscs)->data |= (0x1 << type); |
8cc72361 WYC |
517 | |
518 | return 0; | |
519 | } | |
520 | ||
521 | static int daio_mgr_put_rsc(struct rsc_mgr *mgr, enum DAIOTYP type) | |
522 | { | |
55309216 | 523 | ((struct daio_usage *)mgr->rscs)->data &= ~(0x1 << type); |
8cc72361 WYC |
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 | { | |
514eef9c | 532 | int err; |
8cc72361 WYC |
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); | |
35ebf6e7 | 551 | if (!dao) { |
8cc72361 WYC |
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); | |
35ebf6e7 | 562 | if (!dai) { |
8cc72361 WYC |
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: | |
35ebf6e7 | 579 | if (dao) |
8cc72361 | 580 | kfree(dao); |
35ebf6e7 | 581 | else if (dai) |
8cc72361 WYC |
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; | |
514eef9c | 656 | int err; |
8cc72361 WYC |
657 | |
658 | spin_lock_irqsave(&mgr->imap_lock, flags); | |
35ebf6e7 | 659 | if (!entry->addr && mgr->init_imap_added) { |
8cc72361 WYC |
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; | |
514eef9c | 673 | int err; |
8cc72361 WYC |
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 | { | |
514eef9c | 697 | int err, i; |
8cc72361 WYC |
698 | struct daio_mgr *daio_mgr; |
699 | struct imapper *entry; | |
700 | ||
701 | *rdaio_mgr = NULL; | |
702 | daio_mgr = kzalloc(sizeof(*daio_mgr), GFP_KERNEL); | |
35ebf6e7 | 703 | if (!daio_mgr) |
8cc72361 WYC |
704 | return -ENOMEM; |
705 | ||
55309216 | 706 | err = rsc_mgr_init(&daio_mgr->mgr, DAIO, NUM_DAIOTYP, hw); |
8cc72361 WYC |
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); | |
35ebf6e7 | 714 | if (!entry) { |
8cc72361 WYC |
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 |