2 * Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
3 * Copyright (C) 2017 Linaro Ltd.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 and
7 * only version 2 as published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
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>
25 #include "hfi_venus.h"
27 #define TIMEOUT msecs_to_jiffies(1000)
29 static u32 to_codec_type(u32 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;
57 int hfi_core_init(struct venus_core *core)
61 mutex_lock(&core->lock);
63 if (core->state >= CORE_INIT)
66 reinit_completion(&core->done);
68 ret = core->ops->core_init(core);
72 ret = wait_for_completion_timeout(&core->done, TIMEOUT);
80 if (core->error != HFI_ERR_NONE) {
85 core->state = CORE_INIT;
87 mutex_unlock(&core->lock);
91 static int core_deinit_wait_atomic_t(atomic_t *p)
97 int hfi_core_deinit(struct venus_core *core, bool blocking)
101 mutex_lock(&core->lock);
103 if (core->state == CORE_UNINIT)
106 empty = list_empty(&core->instances);
108 if (!empty && !blocking) {
114 mutex_unlock(&core->lock);
115 wait_on_atomic_t(&core->insts_count, core_deinit_wait_atomic_t,
116 TASK_UNINTERRUPTIBLE);
117 mutex_lock(&core->lock);
123 ret = core->ops->core_deinit(core);
126 core->state = CORE_UNINIT;
129 mutex_unlock(&core->lock);
133 int hfi_core_suspend(struct venus_core *core)
135 if (core->state != CORE_INIT)
138 return core->ops->suspend(core);
141 int hfi_core_resume(struct venus_core *core, bool force)
143 if (!force && core->state != CORE_INIT)
146 return core->ops->resume(core);
149 int hfi_core_trigger_ssr(struct venus_core *core, u32 type)
151 return core->ops->core_trigger_ssr(core, type);
154 int hfi_core_ping(struct venus_core *core)
158 mutex_lock(&core->lock);
160 ret = core->ops->core_ping(core, 0xbeef);
164 ret = wait_for_completion_timeout(&core->done, TIMEOUT);
170 if (core->error != HFI_ERR_NONE)
173 mutex_unlock(&core->lock);
177 static int wait_session_msg(struct venus_inst *inst)
181 ret = wait_for_completion_timeout(&inst->done, TIMEOUT);
185 if (inst->error != HFI_ERR_NONE)
191 int hfi_session_create(struct venus_inst *inst, const struct hfi_inst_ops *ops)
193 struct venus_core *core = inst->core;
198 inst->state = INST_UNINIT;
199 init_completion(&inst->done);
202 mutex_lock(&core->lock);
203 list_add_tail(&inst->list, &core->instances);
204 atomic_inc(&core->insts_count);
205 mutex_unlock(&core->lock);
209 EXPORT_SYMBOL_GPL(hfi_session_create);
211 int hfi_session_init(struct venus_inst *inst, u32 pixfmt)
213 struct venus_core *core = inst->core;
214 const struct hfi_ops *ops = core->ops;
218 codec = to_codec_type(pixfmt);
219 reinit_completion(&inst->done);
221 ret = ops->session_init(inst, inst->session_type, codec);
225 ret = wait_session_msg(inst);
229 inst->state = INST_INIT;
233 EXPORT_SYMBOL_GPL(hfi_session_init);
235 void hfi_session_destroy(struct venus_inst *inst)
237 struct venus_core *core = inst->core;
239 mutex_lock(&core->lock);
240 list_del_init(&inst->list);
241 atomic_dec(&core->insts_count);
242 wake_up_atomic_t(&core->insts_count);
243 mutex_unlock(&core->lock);
245 EXPORT_SYMBOL_GPL(hfi_session_destroy);
247 int hfi_session_deinit(struct venus_inst *inst)
249 const struct hfi_ops *ops = inst->core->ops;
252 if (inst->state == INST_UNINIT)
255 if (inst->state < INST_INIT)
258 reinit_completion(&inst->done);
260 ret = ops->session_end(inst);
264 ret = wait_session_msg(inst);
268 inst->state = INST_UNINIT;
272 EXPORT_SYMBOL_GPL(hfi_session_deinit);
274 int hfi_session_start(struct venus_inst *inst)
276 const struct hfi_ops *ops = inst->core->ops;
279 if (inst->state != INST_LOAD_RESOURCES)
282 reinit_completion(&inst->done);
284 ret = ops->session_start(inst);
288 ret = wait_session_msg(inst);
292 inst->state = INST_START;
297 int hfi_session_stop(struct venus_inst *inst)
299 const struct hfi_ops *ops = inst->core->ops;
302 if (inst->state != INST_START)
305 reinit_completion(&inst->done);
307 ret = ops->session_stop(inst);
311 ret = wait_session_msg(inst);
315 inst->state = INST_STOP;
320 int hfi_session_continue(struct venus_inst *inst)
322 struct venus_core *core = inst->core;
324 if (core->res->hfi_version != HFI_VERSION_3XX)
327 return core->ops->session_continue(inst);
329 EXPORT_SYMBOL_GPL(hfi_session_continue);
331 int hfi_session_abort(struct venus_inst *inst)
333 const struct hfi_ops *ops = inst->core->ops;
336 reinit_completion(&inst->done);
338 ret = ops->session_abort(inst);
342 ret = wait_session_msg(inst);
349 int hfi_session_load_res(struct venus_inst *inst)
351 const struct hfi_ops *ops = inst->core->ops;
354 if (inst->state != INST_INIT)
357 reinit_completion(&inst->done);
359 ret = ops->session_load_res(inst);
363 ret = wait_session_msg(inst);
367 inst->state = INST_LOAD_RESOURCES;
372 int hfi_session_unload_res(struct venus_inst *inst)
374 const struct hfi_ops *ops = inst->core->ops;
377 if (inst->state != INST_STOP)
380 reinit_completion(&inst->done);
382 ret = ops->session_release_res(inst);
386 ret = wait_session_msg(inst);
390 inst->state = INST_RELEASE_RESOURCES;
395 int hfi_session_flush(struct venus_inst *inst)
397 const struct hfi_ops *ops = inst->core->ops;
400 reinit_completion(&inst->done);
402 ret = ops->session_flush(inst, HFI_FLUSH_ALL);
406 ret = wait_session_msg(inst);
412 EXPORT_SYMBOL_GPL(hfi_session_flush);
414 int hfi_session_set_buffers(struct venus_inst *inst, struct hfi_buffer_desc *bd)
416 const struct hfi_ops *ops = inst->core->ops;
418 return ops->session_set_buffers(inst, bd);
421 int hfi_session_unset_buffers(struct venus_inst *inst,
422 struct hfi_buffer_desc *bd)
424 const struct hfi_ops *ops = inst->core->ops;
427 reinit_completion(&inst->done);
429 ret = ops->session_unset_buffers(inst, bd);
433 if (!bd->response_required)
436 ret = wait_session_msg(inst);
443 int hfi_session_get_property(struct venus_inst *inst, u32 ptype,
444 union hfi_get_property *hprop)
446 const struct hfi_ops *ops = inst->core->ops;
449 if (inst->state < INST_INIT || inst->state >= INST_STOP)
452 reinit_completion(&inst->done);
454 ret = ops->session_get_property(inst, ptype);
458 ret = wait_session_msg(inst);
462 *hprop = inst->hprop;
466 EXPORT_SYMBOL_GPL(hfi_session_get_property);
468 int hfi_session_set_property(struct venus_inst *inst, u32 ptype, void *pdata)
470 const struct hfi_ops *ops = inst->core->ops;
472 if (inst->state < INST_INIT || inst->state >= INST_STOP)
475 return ops->session_set_property(inst, ptype, pdata);
477 EXPORT_SYMBOL_GPL(hfi_session_set_property);
479 int hfi_session_process_buf(struct venus_inst *inst, struct hfi_frame_data *fd)
481 const struct hfi_ops *ops = inst->core->ops;
483 if (fd->buffer_type == HFI_BUFFER_INPUT)
484 return ops->session_etb(inst, fd);
485 else if (fd->buffer_type == HFI_BUFFER_OUTPUT)
486 return ops->session_ftb(inst, fd);
490 EXPORT_SYMBOL_GPL(hfi_session_process_buf);
492 irqreturn_t hfi_isr_thread(int irq, void *dev_id)
494 struct venus_core *core = dev_id;
496 return core->ops->isr_thread(core);
499 irqreturn_t hfi_isr(int irq, void *dev)
501 struct venus_core *core = dev;
503 return core->ops->isr(core);
506 int hfi_create(struct venus_core *core, const struct hfi_core_ops *ops)
513 atomic_set(&core->insts_count, 0);
514 core->core_ops = ops;
515 core->state = CORE_UNINIT;
516 init_completion(&core->done);
517 pkt_set_version(core->res->hfi_version);
518 ret = venus_hfi_create(core);
523 void hfi_destroy(struct venus_core *core)
525 venus_hfi_destroy(core);