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19#include "ctamixer.h"
20#include "cthardware.h"
21#include <linux/slab.h>
22
23#define AMIXER_RESOURCE_NUM 256
24#define SUM_RESOURCE_NUM 256
25
26#define AMIXER_Y_IMMEDIATE 1
27
28#define BLANK_SLOT 4094
29
30static int amixer_master(struct rsc *rsc)
31{
32 rsc->conj = 0;
33 return rsc->idx = container_of(rsc, struct amixer, rsc)->idx[0];
34}
35
36static int amixer_next_conj(struct rsc *rsc)
37{
38 rsc->conj++;
39 return container_of(rsc, struct amixer, rsc)->idx[rsc->conj];
40}
41
42static int amixer_index(const struct rsc *rsc)
43{
44 return container_of(rsc, struct amixer, rsc)->idx[rsc->conj];
45}
46
47static int amixer_output_slot(const struct rsc *rsc)
48{
49 return (amixer_index(rsc) << 4) + 0x4;
50}
51
52static struct rsc_ops amixer_basic_rsc_ops = {
53 .master = amixer_master,
54 .next_conj = amixer_next_conj,
55 .index = amixer_index,
56 .output_slot = amixer_output_slot,
57};
58
59static int amixer_set_input(struct amixer *amixer, struct rsc *rsc)
60{
61 struct hw *hw;
62
63 hw = amixer->rsc.hw;
64 hw->amixer_set_mode(amixer->rsc.ctrl_blk, AMIXER_Y_IMMEDIATE);
65 amixer->input = rsc;
66 if (!rsc)
67 hw->amixer_set_x(amixer->rsc.ctrl_blk, BLANK_SLOT);
68 else
69 hw->amixer_set_x(amixer->rsc.ctrl_blk,
70 rsc->ops->output_slot(rsc));
71
72 return 0;
73}
74
75
76static int amixer_set_y(struct amixer *amixer, unsigned int y)
77{
78 struct hw *hw;
79
80 hw = amixer->rsc.hw;
81 hw->amixer_set_y(amixer->rsc.ctrl_blk, y);
82
83 return 0;
84}
85
86static int amixer_set_invalid_squash(struct amixer *amixer, unsigned int iv)
87{
88 struct hw *hw;
89
90 hw = amixer->rsc.hw;
91 hw->amixer_set_iv(amixer->rsc.ctrl_blk, iv);
92
93 return 0;
94}
95
96static int amixer_set_sum(struct amixer *amixer, struct sum *sum)
97{
98 struct hw *hw;
99
100 hw = amixer->rsc.hw;
101 amixer->sum = sum;
102 if (!sum) {
103 hw->amixer_set_se(amixer->rsc.ctrl_blk, 0);
104 } else {
105 hw->amixer_set_se(amixer->rsc.ctrl_blk, 1);
106 hw->amixer_set_sadr(amixer->rsc.ctrl_blk,
107 sum->rsc.ops->index(&sum->rsc));
108 }
109
110 return 0;
111}
112
113static int amixer_commit_write(struct amixer *amixer)
114{
115 struct hw *hw;
116 unsigned int index;
117 int i;
118 struct rsc *input;
119 struct sum *sum;
120
121 hw = amixer->rsc.hw;
122 input = amixer->input;
123 sum = amixer->sum;
124
125
126 amixer->rsc.ops->master(&amixer->rsc);
127 if (input)
128 input->ops->master(input);
129
130 if (sum)
131 sum->rsc.ops->master(&sum->rsc);
132
133 for (i = 0; i < amixer->rsc.msr; i++) {
134 hw->amixer_set_dirty_all(amixer->rsc.ctrl_blk);
135 if (input) {
136 hw->amixer_set_x(amixer->rsc.ctrl_blk,
137 input->ops->output_slot(input));
138 input->ops->next_conj(input);
139 }
140 if (sum) {
141 hw->amixer_set_sadr(amixer->rsc.ctrl_blk,
142 sum->rsc.ops->index(&sum->rsc));
143 sum->rsc.ops->next_conj(&sum->rsc);
144 }
145 index = amixer->rsc.ops->output_slot(&amixer->rsc);
146 hw->amixer_commit_write(hw, index, amixer->rsc.ctrl_blk);
147 amixer->rsc.ops->next_conj(&amixer->rsc);
148 }
149 amixer->rsc.ops->master(&amixer->rsc);
150 if (input)
151 input->ops->master(input);
152
153 if (sum)
154 sum->rsc.ops->master(&sum->rsc);
155
156 return 0;
157}
158
159static int amixer_commit_raw_write(struct amixer *amixer)
160{
161 struct hw *hw;
162 unsigned int index;
163
164 hw = amixer->rsc.hw;
165 index = amixer->rsc.ops->output_slot(&amixer->rsc);
166 hw->amixer_commit_write(hw, index, amixer->rsc.ctrl_blk);
167
168 return 0;
169}
170
171static int amixer_get_y(struct amixer *amixer)
172{
173 struct hw *hw;
174
175 hw = amixer->rsc.hw;
176 return hw->amixer_get_y(amixer->rsc.ctrl_blk);
177}
178
179static int amixer_setup(struct amixer *amixer, struct rsc *input,
180 unsigned int scale, struct sum *sum)
181{
182 amixer_set_input(amixer, input);
183 amixer_set_y(amixer, scale);
184 amixer_set_sum(amixer, sum);
185 amixer_commit_write(amixer);
186 return 0;
187}
188
189static struct amixer_rsc_ops amixer_ops = {
190 .set_input = amixer_set_input,
191 .set_invalid_squash = amixer_set_invalid_squash,
192 .set_scale = amixer_set_y,
193 .set_sum = amixer_set_sum,
194 .commit_write = amixer_commit_write,
195 .commit_raw_write = amixer_commit_raw_write,
196 .setup = amixer_setup,
197 .get_scale = amixer_get_y,
198};
199
200static int amixer_rsc_init(struct amixer *amixer,
201 const struct amixer_desc *desc,
202 struct amixer_mgr *mgr)
203{
204 int err;
205
206 err = rsc_init(&amixer->rsc, amixer->idx[0],
207 AMIXER, desc->msr, mgr->mgr.hw);
208 if (err)
209 return err;
210
211
212 amixer->rsc.ops = &amixer_basic_rsc_ops;
213 amixer->ops = &amixer_ops;
214 amixer->input = NULL;
215 amixer->sum = NULL;
216
217 amixer_setup(amixer, NULL, 0, NULL);
218
219 return 0;
220}
221
222static int amixer_rsc_uninit(struct amixer *amixer)
223{
224 amixer_setup(amixer, NULL, 0, NULL);
225 rsc_uninit(&amixer->rsc);
226 amixer->ops = NULL;
227 amixer->input = NULL;
228 amixer->sum = NULL;
229 return 0;
230}
231
232static int get_amixer_rsc(struct amixer_mgr *mgr,
233 const struct amixer_desc *desc,
234 struct amixer **ramixer)
235{
236 int err, i;
237 unsigned int idx;
238 struct amixer *amixer;
239 unsigned long flags;
240
241 *ramixer = NULL;
242
243
244 amixer = kzalloc(sizeof(*amixer), GFP_KERNEL);
245 if (!amixer)
246 return -ENOMEM;
247
248
249
250 err = 0;
251 spin_lock_irqsave(&mgr->mgr_lock, flags);
252 for (i = 0; i < desc->msr; i++) {
253 err = mgr_get_resource(&mgr->mgr, 1, &idx);
254 if (err)
255 break;
256
257 amixer->idx[i] = idx;
258 }
259 spin_unlock_irqrestore(&mgr->mgr_lock, flags);
260 if (err) {
261 printk(KERN_ERR "ctxfi: Can't meet AMIXER resource request!\n");
262 goto error;
263 }
264
265 err = amixer_rsc_init(amixer, desc, mgr);
266 if (err)
267 goto error;
268
269 *ramixer = amixer;
270
271 return 0;
272
273error:
274 spin_lock_irqsave(&mgr->mgr_lock, flags);
275 for (i--; i >= 0; i--)
276 mgr_put_resource(&mgr->mgr, 1, amixer->idx[i]);
277
278 spin_unlock_irqrestore(&mgr->mgr_lock, flags);
279 kfree(amixer);
280 return err;
281}
282
283static int put_amixer_rsc(struct amixer_mgr *mgr, struct amixer *amixer)
284{
285 unsigned long flags;
286 int i;
287
288 spin_lock_irqsave(&mgr->mgr_lock, flags);
289 for (i = 0; i < amixer->rsc.msr; i++)
290 mgr_put_resource(&mgr->mgr, 1, amixer->idx[i]);
291
292 spin_unlock_irqrestore(&mgr->mgr_lock, flags);
293 amixer_rsc_uninit(amixer);
294 kfree(amixer);
295
296 return 0;
297}
298
299int amixer_mgr_create(void *hw, struct amixer_mgr **ramixer_mgr)
300{
301 int err;
302 struct amixer_mgr *amixer_mgr;
303
304 *ramixer_mgr = NULL;
305 amixer_mgr = kzalloc(sizeof(*amixer_mgr), GFP_KERNEL);
306 if (!amixer_mgr)
307 return -ENOMEM;
308
309 err = rsc_mgr_init(&amixer_mgr->mgr, AMIXER, AMIXER_RESOURCE_NUM, hw);
310 if (err)
311 goto error;
312
313 spin_lock_init(&amixer_mgr->mgr_lock);
314
315 amixer_mgr->get_amixer = get_amixer_rsc;
316 amixer_mgr->put_amixer = put_amixer_rsc;
317
318 *ramixer_mgr = amixer_mgr;
319
320 return 0;
321
322error:
323 kfree(amixer_mgr);
324 return err;
325}
326
327int amixer_mgr_destroy(struct amixer_mgr *amixer_mgr)
328{
329 rsc_mgr_uninit(&amixer_mgr->mgr);
330 kfree(amixer_mgr);
331 return 0;
332}
333
334
335
336static int sum_master(struct rsc *rsc)
337{
338 rsc->conj = 0;
339 return rsc->idx = container_of(rsc, struct sum, rsc)->idx[0];
340}
341
342static int sum_next_conj(struct rsc *rsc)
343{
344 rsc->conj++;
345 return container_of(rsc, struct sum, rsc)->idx[rsc->conj];
346}
347
348static int sum_index(const struct rsc *rsc)
349{
350 return container_of(rsc, struct sum, rsc)->idx[rsc->conj];
351}
352
353static int sum_output_slot(const struct rsc *rsc)
354{
355 return (sum_index(rsc) << 4) + 0xc;
356}
357
358static struct rsc_ops sum_basic_rsc_ops = {
359 .master = sum_master,
360 .next_conj = sum_next_conj,
361 .index = sum_index,
362 .output_slot = sum_output_slot,
363};
364
365static int sum_rsc_init(struct sum *sum,
366 const struct sum_desc *desc,
367 struct sum_mgr *mgr)
368{
369 int err;
370
371 err = rsc_init(&sum->rsc, sum->idx[0], SUM, desc->msr, mgr->mgr.hw);
372 if (err)
373 return err;
374
375 sum->rsc.ops = &sum_basic_rsc_ops;
376
377 return 0;
378}
379
380static int sum_rsc_uninit(struct sum *sum)
381{
382 rsc_uninit(&sum->rsc);
383 return 0;
384}
385
386static int get_sum_rsc(struct sum_mgr *mgr,
387 const struct sum_desc *desc,
388 struct sum **rsum)
389{
390 int err, i;
391 unsigned int idx;
392 struct sum *sum;
393 unsigned long flags;
394
395 *rsum = NULL;
396
397
398 sum = kzalloc(sizeof(*sum), GFP_KERNEL);
399 if (!sum)
400 return -ENOMEM;
401
402
403 err = 0;
404 spin_lock_irqsave(&mgr->mgr_lock, flags);
405 for (i = 0; i < desc->msr; i++) {
406 err = mgr_get_resource(&mgr->mgr, 1, &idx);
407 if (err)
408 break;
409
410 sum->idx[i] = idx;
411 }
412 spin_unlock_irqrestore(&mgr->mgr_lock, flags);
413 if (err) {
414 printk(KERN_ERR "ctxfi: Can't meet SUM resource request!\n");
415 goto error;
416 }
417
418 err = sum_rsc_init(sum, desc, mgr);
419 if (err)
420 goto error;
421
422 *rsum = sum;
423
424 return 0;
425
426error:
427 spin_lock_irqsave(&mgr->mgr_lock, flags);
428 for (i--; i >= 0; i--)
429 mgr_put_resource(&mgr->mgr, 1, sum->idx[i]);
430
431 spin_unlock_irqrestore(&mgr->mgr_lock, flags);
432 kfree(sum);
433 return err;
434}
435
436static int put_sum_rsc(struct sum_mgr *mgr, struct sum *sum)
437{
438 unsigned long flags;
439 int i;
440
441 spin_lock_irqsave(&mgr->mgr_lock, flags);
442 for (i = 0; i < sum->rsc.msr; i++)
443 mgr_put_resource(&mgr->mgr, 1, sum->idx[i]);
444
445 spin_unlock_irqrestore(&mgr->mgr_lock, flags);
446 sum_rsc_uninit(sum);
447 kfree(sum);
448
449 return 0;
450}
451
452int sum_mgr_create(void *hw, struct sum_mgr **rsum_mgr)
453{
454 int err;
455 struct sum_mgr *sum_mgr;
456
457 *rsum_mgr = NULL;
458 sum_mgr = kzalloc(sizeof(*sum_mgr), GFP_KERNEL);
459 if (!sum_mgr)
460 return -ENOMEM;
461
462 err = rsc_mgr_init(&sum_mgr->mgr, SUM, SUM_RESOURCE_NUM, hw);
463 if (err)
464 goto error;
465
466 spin_lock_init(&sum_mgr->mgr_lock);
467
468 sum_mgr->get_sum = get_sum_rsc;
469 sum_mgr->put_sum = put_sum_rsc;
470
471 *rsum_mgr = sum_mgr;
472
473 return 0;
474
475error:
476 kfree(sum_mgr);
477 return err;
478}
479
480int sum_mgr_destroy(struct sum_mgr *sum_mgr)
481{
482 rsc_mgr_uninit(&sum_mgr->mgr);
483 kfree(sum_mgr);
484 return 0;
485}
486
487
