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15#include <linux/slab.h>
16#include <linux/mutex.h>
17#include <linux/list.h>
18#include <linux/completion.h>
19#include <linux/platform_device.h>
20#include <linux/videodev2.h>
21
22#include "core.h"
23#include "hfi.h"
24#include "hfi_cmds.h"
25#include "hfi_venus.h"
26
27#define TIMEOUT msecs_to_jiffies(1000)
28
29static u32 to_codec_type(u32 pixfmt)
30{
31 switch (pixfmt) {
32 case V4L2_PIX_FMT_H264:
33 case V4L2_PIX_FMT_H264_NO_SC:
34 return HFI_VIDEO_CODEC_H264;
35 case V4L2_PIX_FMT_H263:
36 return HFI_VIDEO_CODEC_H263;
37 case V4L2_PIX_FMT_MPEG1:
38 return HFI_VIDEO_CODEC_MPEG1;
39 case V4L2_PIX_FMT_MPEG2:
40 return HFI_VIDEO_CODEC_MPEG2;
41 case V4L2_PIX_FMT_MPEG4:
42 return HFI_VIDEO_CODEC_MPEG4;
43 case V4L2_PIX_FMT_VC1_ANNEX_G:
44 case V4L2_PIX_FMT_VC1_ANNEX_L:
45 return HFI_VIDEO_CODEC_VC1;
46 case V4L2_PIX_FMT_VP8:
47 return HFI_VIDEO_CODEC_VP8;
48 case V4L2_PIX_FMT_VP9:
49 return HFI_VIDEO_CODEC_VP9;
50 case V4L2_PIX_FMT_XVID:
51 return HFI_VIDEO_CODEC_DIVX;
52 default:
53 return 0;
54 }
55}
56
57int hfi_core_init(struct venus_core *core)
58{
59 int ret = 0;
60
61 mutex_lock(&core->lock);
62
63 if (core->state >= CORE_INIT)
64 goto unlock;
65
66 reinit_completion(&core->done);
67
68 ret = core->ops->core_init(core);
69 if (ret)
70 goto unlock;
71
72 ret = wait_for_completion_timeout(&core->done, TIMEOUT);
73 if (!ret) {
74 ret = -ETIMEDOUT;
75 goto unlock;
76 }
77
78 ret = 0;
79
80 if (core->error != HFI_ERR_NONE) {
81 ret = -EIO;
82 goto unlock;
83 }
84
85 core->state = CORE_INIT;
86unlock:
87 mutex_unlock(&core->lock);
88 return ret;
89}
90
91int hfi_core_deinit(struct venus_core *core, bool blocking)
92{
93 int ret = 0, empty;
94
95 mutex_lock(&core->lock);
96
97 if (core->state == CORE_UNINIT)
98 goto unlock;
99
100 empty = list_empty(&core->instances);
101
102 if (!empty && !blocking) {
103 ret = -EBUSY;
104 goto unlock;
105 }
106
107 if (!empty) {
108 mutex_unlock(&core->lock);
109 wait_var_event(&core->insts_count,
110 !atomic_read(&core->insts_count));
111 mutex_lock(&core->lock);
112 }
113
114 ret = core->ops->core_deinit(core);
115
116 if (!ret)
117 core->state = CORE_UNINIT;
118
119unlock:
120 mutex_unlock(&core->lock);
121 return ret;
122}
123
124int hfi_core_suspend(struct venus_core *core)
125{
126 if (core->state != CORE_INIT)
127 return 0;
128
129 return core->ops->suspend(core);
130}
131
132int hfi_core_resume(struct venus_core *core, bool force)
133{
134 if (!force && core->state != CORE_INIT)
135 return 0;
136
137 return core->ops->resume(core);
138}
139
140int hfi_core_trigger_ssr(struct venus_core *core, u32 type)
141{
142 return core->ops->core_trigger_ssr(core, type);
143}
144
145int hfi_core_ping(struct venus_core *core)
146{
147 int ret;
148
149 mutex_lock(&core->lock);
150
151 ret = core->ops->core_ping(core, 0xbeef);
152 if (ret)
153 goto unlock;
154
155 ret = wait_for_completion_timeout(&core->done, TIMEOUT);
156 if (!ret) {
157 ret = -ETIMEDOUT;
158 goto unlock;
159 }
160 ret = 0;
161 if (core->error != HFI_ERR_NONE)
162 ret = -ENODEV;
163unlock:
164 mutex_unlock(&core->lock);
165 return ret;
166}
167
168static int wait_session_msg(struct venus_inst *inst)
169{
170 int ret;
171
172 ret = wait_for_completion_timeout(&inst->done, TIMEOUT);
173 if (!ret)
174 return -ETIMEDOUT;
175
176 if (inst->error != HFI_ERR_NONE)
177 return -EIO;
178
179 return 0;
180}
181
182int hfi_session_create(struct venus_inst *inst, const struct hfi_inst_ops *ops)
183{
184 struct venus_core *core = inst->core;
185
186 if (!ops)
187 return -EINVAL;
188
189 inst->state = INST_UNINIT;
190 init_completion(&inst->done);
191 inst->ops = ops;
192
193 mutex_lock(&core->lock);
194 list_add_tail(&inst->list, &core->instances);
195 atomic_inc(&core->insts_count);
196 mutex_unlock(&core->lock);
197
198 return 0;
199}
200EXPORT_SYMBOL_GPL(hfi_session_create);
201
202int hfi_session_init(struct venus_inst *inst, u32 pixfmt)
203{
204 struct venus_core *core = inst->core;
205 const struct hfi_ops *ops = core->ops;
206 u32 codec;
207 int ret;
208
209 codec = to_codec_type(pixfmt);
210 reinit_completion(&inst->done);
211
212 ret = ops->session_init(inst, inst->session_type, codec);
213 if (ret)
214 return ret;
215
216 ret = wait_session_msg(inst);
217 if (ret)
218 return ret;
219
220 inst->state = INST_INIT;
221
222 return 0;
223}
224EXPORT_SYMBOL_GPL(hfi_session_init);
225
226void hfi_session_destroy(struct venus_inst *inst)
227{
228 struct venus_core *core = inst->core;
229
230 mutex_lock(&core->lock);
231 list_del_init(&inst->list);
232 if (atomic_dec_and_test(&core->insts_count))
233 wake_up_var(&core->insts_count);
234 mutex_unlock(&core->lock);
235}
236EXPORT_SYMBOL_GPL(hfi_session_destroy);
237
238int hfi_session_deinit(struct venus_inst *inst)
239{
240 const struct hfi_ops *ops = inst->core->ops;
241 int ret;
242
243 if (inst->state == INST_UNINIT)
244 return 0;
245
246 if (inst->state < INST_INIT)
247 return -EINVAL;
248
249 reinit_completion(&inst->done);
250
251 ret = ops->session_end(inst);
252 if (ret)
253 return ret;
254
255 ret = wait_session_msg(inst);
256 if (ret)
257 return ret;
258
259 inst->state = INST_UNINIT;
260
261 return 0;
262}
263EXPORT_SYMBOL_GPL(hfi_session_deinit);
264
265int hfi_session_start(struct venus_inst *inst)
266{
267 const struct hfi_ops *ops = inst->core->ops;
268 int ret;
269
270 if (inst->state != INST_LOAD_RESOURCES)
271 return -EINVAL;
272
273 reinit_completion(&inst->done);
274
275 ret = ops->session_start(inst);
276 if (ret)
277 return ret;
278
279 ret = wait_session_msg(inst);
280 if (ret)
281 return ret;
282
283 inst->state = INST_START;
284
285 return 0;
286}
287
288int hfi_session_stop(struct venus_inst *inst)
289{
290 const struct hfi_ops *ops = inst->core->ops;
291 int ret;
292
293 if (inst->state != INST_START)
294 return -EINVAL;
295
296 reinit_completion(&inst->done);
297
298 ret = ops->session_stop(inst);
299 if (ret)
300 return ret;
301
302 ret = wait_session_msg(inst);
303 if (ret)
304 return ret;
305
306 inst->state = INST_STOP;
307
308 return 0;
309}
310
311int hfi_session_continue(struct venus_inst *inst)
312{
313 struct venus_core *core = inst->core;
314
315 if (core->res->hfi_version != HFI_VERSION_3XX)
316 return 0;
317
318 return core->ops->session_continue(inst);
319}
320EXPORT_SYMBOL_GPL(hfi_session_continue);
321
322int hfi_session_abort(struct venus_inst *inst)
323{
324 const struct hfi_ops *ops = inst->core->ops;
325 int ret;
326
327 reinit_completion(&inst->done);
328
329 ret = ops->session_abort(inst);
330 if (ret)
331 return ret;
332
333 ret = wait_session_msg(inst);
334 if (ret)
335 return ret;
336
337 return 0;
338}
339
340int hfi_session_load_res(struct venus_inst *inst)
341{
342 const struct hfi_ops *ops = inst->core->ops;
343 int ret;
344
345 if (inst->state != INST_INIT)
346 return -EINVAL;
347
348 reinit_completion(&inst->done);
349
350 ret = ops->session_load_res(inst);
351 if (ret)
352 return ret;
353
354 ret = wait_session_msg(inst);
355 if (ret)
356 return ret;
357
358 inst->state = INST_LOAD_RESOURCES;
359
360 return 0;
361}
362
363int hfi_session_unload_res(struct venus_inst *inst)
364{
365 const struct hfi_ops *ops = inst->core->ops;
366 int ret;
367
368 if (inst->state != INST_STOP)
369 return -EINVAL;
370
371 reinit_completion(&inst->done);
372
373 ret = ops->session_release_res(inst);
374 if (ret)
375 return ret;
376
377 ret = wait_session_msg(inst);
378 if (ret)
379 return ret;
380
381 inst->state = INST_RELEASE_RESOURCES;
382
383 return 0;
384}
385
386int hfi_session_flush(struct venus_inst *inst)
387{
388 const struct hfi_ops *ops = inst->core->ops;
389 int ret;
390
391 reinit_completion(&inst->done);
392
393 ret = ops->session_flush(inst, HFI_FLUSH_ALL);
394 if (ret)
395 return ret;
396
397 ret = wait_session_msg(inst);
398 if (ret)
399 return ret;
400
401 return 0;
402}
403EXPORT_SYMBOL_GPL(hfi_session_flush);
404
405int hfi_session_set_buffers(struct venus_inst *inst, struct hfi_buffer_desc *bd)
406{
407 const struct hfi_ops *ops = inst->core->ops;
408
409 return ops->session_set_buffers(inst, bd);
410}
411
412int hfi_session_unset_buffers(struct venus_inst *inst,
413 struct hfi_buffer_desc *bd)
414{
415 const struct hfi_ops *ops = inst->core->ops;
416 int ret;
417
418 reinit_completion(&inst->done);
419
420 ret = ops->session_unset_buffers(inst, bd);
421 if (ret)
422 return ret;
423
424 if (!bd->response_required)
425 return 0;
426
427 ret = wait_session_msg(inst);
428 if (ret)
429 return ret;
430
431 return 0;
432}
433
434int hfi_session_get_property(struct venus_inst *inst, u32 ptype,
435 union hfi_get_property *hprop)
436{
437 const struct hfi_ops *ops = inst->core->ops;
438 int ret;
439
440 if (inst->state < INST_INIT || inst->state >= INST_STOP)
441 return -EINVAL;
442
443 reinit_completion(&inst->done);
444
445 ret = ops->session_get_property(inst, ptype);
446 if (ret)
447 return ret;
448
449 ret = wait_session_msg(inst);
450 if (ret)
451 return ret;
452
453 *hprop = inst->hprop;
454
455 return 0;
456}
457EXPORT_SYMBOL_GPL(hfi_session_get_property);
458
459int hfi_session_set_property(struct venus_inst *inst, u32 ptype, void *pdata)
460{
461 const struct hfi_ops *ops = inst->core->ops;
462
463 if (inst->state < INST_INIT || inst->state >= INST_STOP)
464 return -EINVAL;
465
466 return ops->session_set_property(inst, ptype, pdata);
467}
468EXPORT_SYMBOL_GPL(hfi_session_set_property);
469
470int hfi_session_process_buf(struct venus_inst *inst, struct hfi_frame_data *fd)
471{
472 const struct hfi_ops *ops = inst->core->ops;
473
474 if (fd->buffer_type == HFI_BUFFER_INPUT)
475 return ops->session_etb(inst, fd);
476 else if (fd->buffer_type == HFI_BUFFER_OUTPUT)
477 return ops->session_ftb(inst, fd);
478
479 return -EINVAL;
480}
481EXPORT_SYMBOL_GPL(hfi_session_process_buf);
482
483irqreturn_t hfi_isr_thread(int irq, void *dev_id)
484{
485 struct venus_core *core = dev_id;
486
487 return core->ops->isr_thread(core);
488}
489
490irqreturn_t hfi_isr(int irq, void *dev)
491{
492 struct venus_core *core = dev;
493
494 return core->ops->isr(core);
495}
496
497int hfi_create(struct venus_core *core, const struct hfi_core_ops *ops)
498{
499 int ret;
500
501 if (!ops)
502 return -EINVAL;
503
504 atomic_set(&core->insts_count, 0);
505 core->core_ops = ops;
506 core->state = CORE_UNINIT;
507 init_completion(&core->done);
508 pkt_set_version(core->res->hfi_version);
509 ret = venus_hfi_create(core);
510
511 return ret;
512}
513
514void hfi_destroy(struct venus_core *core)
515{
516 venus_hfi_destroy(core);
517}
518
