blob: 6307e5bf895e98c4700b758bd4f8084f1cab778c
1 | /* |
2 | * Copyright (C) 2017 Amlogic, Inc. All rights reserved. |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License as published by |
6 | * the Free Software Foundation; either version 2 of the License, or |
7 | * (at your option) any later version. |
8 | * |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
12 | * more details. |
13 | * |
14 | * You should have received a copy of the GNU General Public License along |
15 | * with this program; if not, write to the Free Software Foundation, Inc., |
16 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
17 | * |
18 | * Description: |
19 | */ |
20 | |
21 | #define DEBUG |
22 | #include <linux/slab.h> |
23 | #include <linux/interrupt.h> |
24 | #include <linux/irq.h> |
25 | #include <linux/module.h> |
26 | #include <linux/of_device.h> |
27 | #include <linux/of.h> |
28 | #include <media/v4l2-event.h> |
29 | #include <media/v4l2-mem2mem.h> |
30 | #include <media/videobuf2-dma-contig.h> |
31 | #include <linux/kthread.h> |
32 | |
33 | #include "aml_vcodec_drv.h" |
34 | #include "aml_vcodec_dec.h" |
35 | #include "aml_vcodec_dec_pm.h" |
36 | #include "aml_vcodec_util.h" |
37 | #include "aml_vcodec_vfm.h" |
38 | #include <linux/file.h> |
39 | #include <linux/anon_inodes.h> |
40 | |
41 | #define VDEC_HW_ACTIVE 0x10 |
42 | #define VDEC_IRQ_CFG 0x11 |
43 | #define VDEC_IRQ_CLR 0x10 |
44 | #define VDEC_IRQ_CFG_REG 0xa4 |
45 | |
46 | #define V4LVIDEO_IOC_MAGIC 'I' |
47 | #define V4LVIDEO_IOCTL_ALLOC_FD _IOW(V4LVIDEO_IOC_MAGIC, 0x02, int) |
48 | #define V4LVIDEO_IOCTL_CHECK_FD _IOW(V4LVIDEO_IOC_MAGIC, 0x03, int) |
49 | #define V4LVIDEO_IOCTL_SET_CONFIG_PARAMS _IOWR(V4LVIDEO_IOC_MAGIC, 0x04, struct v4l2_config_parm) |
50 | #define V4LVIDEO_IOCTL_GET_CONFIG_PARAMS _IOWR(V4LVIDEO_IOC_MAGIC, 0x05, struct v4l2_config_parm) |
51 | |
52 | bool scatter_mem_enable; |
53 | bool param_sets_from_ucode; |
54 | |
55 | static int fops_vcodec_open(struct file *file) |
56 | { |
57 | struct aml_vcodec_dev *dev = video_drvdata(file); |
58 | struct aml_vcodec_ctx *ctx = NULL; |
59 | struct aml_video_dec_buf *aml_buf = NULL; |
60 | int ret = 0; |
61 | struct vb2_queue *src_vq; |
62 | |
63 | ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); |
64 | if (!ctx) |
65 | return -ENOMEM; |
66 | aml_buf = kzalloc(sizeof(*aml_buf), GFP_KERNEL); |
67 | if (!aml_buf) { |
68 | kfree(ctx); |
69 | return -ENOMEM; |
70 | } |
71 | |
72 | mutex_lock(&dev->dev_mutex); |
73 | ctx->empty_flush_buf = aml_buf; |
74 | ctx->id = dev->id_counter++; |
75 | v4l2_fh_init(&ctx->fh, video_devdata(file)); |
76 | file->private_data = &ctx->fh; |
77 | v4l2_fh_add(&ctx->fh); |
78 | INIT_LIST_HEAD(&ctx->list); |
79 | INIT_LIST_HEAD(&ctx->vdec_thread_list); |
80 | dev->filp = file; |
81 | ctx->dev = dev; |
82 | init_waitqueue_head(&ctx->queue); |
83 | mutex_init(&ctx->state_lock); |
84 | mutex_init(&ctx->lock); |
85 | spin_lock_init(&ctx->slock); |
86 | init_waitqueue_head(&ctx->wq); |
87 | init_completion(&ctx->comp); |
88 | |
89 | ctx->scatter_mem_enable = scatter_mem_enable ? 1 : 0; |
90 | ctx->param_sets_from_ucode = param_sets_from_ucode ? 1 : 0; |
91 | |
92 | ctx->type = AML_INST_DECODER; |
93 | ret = aml_vcodec_dec_ctrls_setup(ctx); |
94 | if (ret) { |
95 | aml_v4l2_err("Failed to setup vcodec controls"); |
96 | goto err_ctrls_setup; |
97 | } |
98 | ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev_dec, ctx, |
99 | &aml_vcodec_dec_queue_init); |
100 | if (IS_ERR((__force void *)ctx->m2m_ctx)) { |
101 | ret = PTR_ERR((__force void *)ctx->m2m_ctx); |
102 | aml_v4l2_err("Failed to v4l2_m2m_ctx_init() (%d)", ret); |
103 | goto err_m2m_ctx_init; |
104 | } |
105 | src_vq = v4l2_m2m_get_vq(ctx->m2m_ctx, |
106 | V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE); |
107 | ctx->empty_flush_buf->vb.vb2_buf.vb2_queue = src_vq; |
108 | ctx->empty_flush_buf->lastframe = true; |
109 | aml_vcodec_dec_set_default_params(ctx); |
110 | |
111 | ret = aml_thread_start(ctx, try_to_capture, AML_THREAD_CAPTURE, "cap"); |
112 | if (ret) { |
113 | aml_v4l2_err("Failed to creat capture thread."); |
114 | goto err_creat_thread; |
115 | } |
116 | |
117 | list_add(&ctx->list, &dev->ctx_list); |
118 | |
119 | mutex_unlock(&dev->dev_mutex); |
120 | pr_info("[%d] %s decoder\n", ctx->id, dev_name(&dev->plat_dev->dev)); |
121 | |
122 | return ret; |
123 | |
124 | /* Deinit when failure occurred */ |
125 | err_creat_thread: |
126 | v4l2_m2m_ctx_release(ctx->m2m_ctx); |
127 | err_m2m_ctx_init: |
128 | v4l2_ctrl_handler_free(&ctx->ctrl_hdl); |
129 | err_ctrls_setup: |
130 | v4l2_fh_del(&ctx->fh); |
131 | v4l2_fh_exit(&ctx->fh); |
132 | kfree(ctx->empty_flush_buf); |
133 | kfree(ctx); |
134 | mutex_unlock(&dev->dev_mutex); |
135 | |
136 | return ret; |
137 | } |
138 | |
139 | static int fops_vcodec_release(struct file *file) |
140 | { |
141 | struct aml_vcodec_dev *dev = video_drvdata(file); |
142 | struct aml_vcodec_ctx *ctx = fh_to_ctx(file->private_data); |
143 | |
144 | pr_info("[%d] release decoder\n", ctx->id); |
145 | mutex_lock(&dev->dev_mutex); |
146 | |
147 | /* |
148 | * Call v4l2_m2m_ctx_release before aml_vcodec_dec_release. First, it |
149 | * makes sure the worker thread is not running after vdec_if_deinit. |
150 | * Second, the decoder will be flushed and all the buffers will be |
151 | * returned in stop_streaming. |
152 | */ |
153 | aml_thread_stop(ctx); |
154 | wait_vcodec_ending(ctx); |
155 | v4l2_m2m_ctx_release(ctx->m2m_ctx); |
156 | aml_vcodec_dec_release(ctx); |
157 | |
158 | v4l2_fh_del(&ctx->fh); |
159 | v4l2_fh_exit(&ctx->fh); |
160 | v4l2_ctrl_handler_free(&ctx->ctrl_hdl); |
161 | |
162 | list_del_init(&ctx->list); |
163 | kfree(ctx->empty_flush_buf); |
164 | kfree(ctx); |
165 | mutex_unlock(&dev->dev_mutex); |
166 | return 0; |
167 | } |
168 | |
169 | static int v4l2video_file_release(struct inode *inode, struct file *file) |
170 | { |
171 | aml_v4l2_debug(2,"%s: file: 0x%p, data: %p", |
172 | __func__, file, file->private_data); |
173 | |
174 | if (file->private_data) |
175 | vdec_frame_buffer_release(file->private_data); |
176 | |
177 | return 0; |
178 | } |
179 | |
180 | const struct file_operations v4l2_file_fops = { |
181 | .release = v4l2video_file_release, |
182 | }; |
183 | |
184 | int v4l2_alloc_fd(int *fd) |
185 | { |
186 | struct file *file = NULL; |
187 | int file_fd = get_unused_fd_flags(O_CLOEXEC); |
188 | |
189 | if (file_fd < 0) { |
190 | pr_err("%s: get unused fd fail\n", __func__); |
191 | return -ENODEV; |
192 | } |
193 | |
194 | file = anon_inode_getfile("v4l2_meta_file", &v4l2_file_fops, NULL, 0); |
195 | if (IS_ERR(file)) { |
196 | put_unused_fd(file_fd); |
197 | pr_err("%s: anon_inode_getfile fail\n", __func__); |
198 | return -ENODEV; |
199 | } |
200 | |
201 | file->private_data = |
202 | kzalloc(sizeof(struct file_privdata), GFP_KERNEL); |
203 | if (!file->private_data) { |
204 | pr_err("%s: alloc priv data faild.\n", __func__); |
205 | return -ENOMEM; |
206 | } |
207 | |
208 | aml_v4l2_debug(2, "%s: fd %d, file %p", __func__, file_fd, file); |
209 | |
210 | fd_install(file_fd, file); |
211 | *fd = file_fd; |
212 | |
213 | return 0; |
214 | } |
215 | |
216 | extern const struct file_operations v4l2_file_fops; |
217 | bool is_v4l2_buf_file(struct file *file) |
218 | { |
219 | return file->f_op == &v4l2_file_fops; |
220 | } |
221 | |
222 | int v4l2_check_fd(int fd) |
223 | { |
224 | struct file *file; |
225 | |
226 | file = fget(fd); |
227 | |
228 | if (!file) { |
229 | pr_err("%s: fget fd %d fail!\n", __func__, fd); |
230 | return -EBADF; |
231 | } |
232 | |
233 | if (!is_v4l2_buf_file(file)) { |
234 | fput(file); |
235 | pr_err("%s: is_v4l2_buf_file fail!\n", __func__); |
236 | return -1; |
237 | } |
238 | |
239 | fput(file); |
240 | |
241 | aml_v4l2_debug(5, "%s: ioctl ok, comm %s, pid %d", |
242 | __func__, current->comm, current->pid); |
243 | |
244 | return 0; |
245 | } |
246 | |
247 | int dmabuf_fd_install_data(int fd, void* data, u32 size) |
248 | { |
249 | struct file *file; |
250 | |
251 | file = fget(fd); |
252 | |
253 | if (!file) { |
254 | pr_err("%s: fget fd %d fail!, comm %s, pid %d\n", |
255 | __func__, fd, current->comm, current->pid); |
256 | return -EBADF; |
257 | } |
258 | |
259 | if (!is_v4l2_buf_file(file)) { |
260 | fput(file); |
261 | pr_err("%s the buf file checked fail!\n", __func__); |
262 | return -EBADF; |
263 | } |
264 | |
265 | memcpy(file->private_data, data, size); |
266 | |
267 | fput(file); |
268 | |
269 | return 0; |
270 | } |
271 | |
272 | static long v4l2_vcodec_ioctl(struct file *file, |
273 | unsigned int cmd, |
274 | ulong arg) |
275 | { |
276 | long ret = 0; |
277 | void __user *argp = (void __user *)arg; |
278 | |
279 | switch (cmd) { |
280 | case V4LVIDEO_IOCTL_ALLOC_FD: |
281 | { |
282 | u32 v4lvideo_fd = 0; |
283 | |
284 | ret = v4l2_alloc_fd(&v4lvideo_fd); |
285 | if (ret != 0) |
286 | break; |
287 | put_user(v4lvideo_fd, (u32 __user *)argp); |
288 | aml_v4l2_debug(4, "%s: V4LVIDEO_IOCTL_ALLOC_FD fd %d", |
289 | __func__, v4lvideo_fd); |
290 | break; |
291 | } |
292 | case V4LVIDEO_IOCTL_CHECK_FD: |
293 | { |
294 | u32 v4lvideo_fd = 0; |
295 | |
296 | get_user(v4lvideo_fd, (u32 __user *)argp); |
297 | ret = v4l2_check_fd(v4lvideo_fd); |
298 | if (ret != 0) |
299 | break; |
300 | aml_v4l2_debug(4, "%s: V4LVIDEO_IOCTL_CHECK_FD fd %d", |
301 | __func__, v4lvideo_fd); |
302 | break; |
303 | } |
304 | case V4LVIDEO_IOCTL_SET_CONFIG_PARAMS: |
305 | { |
306 | struct aml_vcodec_ctx *ctx = NULL; |
307 | |
308 | if (is_v4l2_buf_file(file)) |
309 | break; |
310 | |
311 | ctx = fh_to_ctx(file->private_data); |
312 | if (copy_from_user((void *)&ctx->config, |
313 | (void *)argp, sizeof(ctx->config))) { |
314 | pr_err("[%s],set config parm err\n", __func__); |
315 | return -EFAULT; |
316 | } |
317 | break; |
318 | } |
319 | case V4LVIDEO_IOCTL_GET_CONFIG_PARAMS: |
320 | { |
321 | struct aml_vcodec_ctx *ctx = NULL; |
322 | |
323 | if (is_v4l2_buf_file(file)) |
324 | break; |
325 | |
326 | ctx = fh_to_ctx(file->private_data); |
327 | if (copy_to_user((void *)argp, |
328 | (void *)&ctx->config, sizeof(ctx->config))) { |
329 | pr_err("[%s],get config parm err\n", __func__); |
330 | return -EFAULT; |
331 | } |
332 | break; |
333 | } |
334 | default: |
335 | return video_ioctl2(file, cmd, arg); |
336 | } |
337 | return ret; |
338 | } |
339 | |
340 | #ifdef CONFIG_COMPAT |
341 | static long v4l2_compat_ioctl(struct file *file, |
342 | unsigned int cmd, ulong arg) |
343 | { |
344 | long ret = 0; |
345 | |
346 | ret = v4l2_vcodec_ioctl(file, cmd, (ulong)compat_ptr(arg)); |
347 | return ret; |
348 | } |
349 | #endif |
350 | |
351 | static const struct v4l2_file_operations aml_vcodec_fops = { |
352 | .owner = THIS_MODULE, |
353 | .open = fops_vcodec_open, |
354 | .release = fops_vcodec_release, |
355 | .poll = v4l2_m2m_fop_poll, |
356 | .unlocked_ioctl = v4l2_vcodec_ioctl, |
357 | #ifdef CONFIG_COMPAT |
358 | .compat_ioctl32 = v4l2_compat_ioctl, |
359 | #endif |
360 | .mmap = v4l2_m2m_fop_mmap, |
361 | }; |
362 | |
363 | static int aml_vcodec_probe(struct platform_device *pdev) |
364 | { |
365 | struct aml_vcodec_dev *dev; |
366 | struct video_device *vfd_dec; |
367 | int ret = 0; |
368 | |
369 | dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); |
370 | if (!dev) |
371 | return -ENOMEM; |
372 | |
373 | INIT_LIST_HEAD(&dev->ctx_list); |
374 | dev->plat_dev = pdev; |
375 | |
376 | mutex_init(&dev->dec_mutex); |
377 | mutex_init(&dev->dev_mutex); |
378 | spin_lock_init(&dev->irqlock); |
379 | |
380 | snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name), "%s", |
381 | "[/AML_V4L2_VDEC]"); |
382 | |
383 | ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); |
384 | if (ret) { |
385 | aml_v4l2_err("v4l2_device_register err=%d", ret); |
386 | goto err_res; |
387 | } |
388 | |
389 | init_waitqueue_head(&dev->queue); |
390 | |
391 | vfd_dec = video_device_alloc(); |
392 | if (!vfd_dec) { |
393 | aml_v4l2_err("Failed to allocate video device"); |
394 | ret = -ENOMEM; |
395 | goto err_dec_alloc; |
396 | } |
397 | |
398 | vfd_dec->fops = &aml_vcodec_fops; |
399 | vfd_dec->ioctl_ops = &aml_vdec_ioctl_ops; |
400 | vfd_dec->release = video_device_release; |
401 | vfd_dec->lock = &dev->dev_mutex; |
402 | vfd_dec->v4l2_dev = &dev->v4l2_dev; |
403 | vfd_dec->vfl_dir = VFL_DIR_M2M; |
404 | vfd_dec->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | |
405 | V4L2_CAP_STREAMING; |
406 | |
407 | snprintf(vfd_dec->name, sizeof(vfd_dec->name), "%s", |
408 | AML_VCODEC_DEC_NAME); |
409 | video_set_drvdata(vfd_dec, dev); |
410 | dev->vfd_dec = vfd_dec; |
411 | platform_set_drvdata(pdev, dev); |
412 | |
413 | dev->m2m_dev_dec = v4l2_m2m_init(&aml_vdec_m2m_ops); |
414 | if (IS_ERR((__force void *)dev->m2m_dev_dec)) { |
415 | aml_v4l2_err("Failed to init mem2mem dec device"); |
416 | ret = PTR_ERR((__force void *)dev->m2m_dev_dec); |
417 | goto err_dec_mem_init; |
418 | } |
419 | |
420 | dev->decode_workqueue = |
421 | alloc_ordered_workqueue(AML_VCODEC_DEC_NAME, |
422 | WQ_MEM_RECLAIM | WQ_FREEZABLE); |
423 | if (!dev->decode_workqueue) { |
424 | aml_v4l2_err("Failed to create decode workqueue"); |
425 | ret = -EINVAL; |
426 | goto err_event_workq; |
427 | } |
428 | |
429 | //dev_set_name(&vdev->dev, "%s%d", name_base, vdev->num); |
430 | |
431 | ret = video_register_device(vfd_dec, VFL_TYPE_GRABBER, 26); |
432 | if (ret) { |
433 | pr_err("Failed to register video device\n"); |
434 | goto err_dec_reg; |
435 | } |
436 | |
437 | pr_info("decoder registered as /dev/video%d\n", vfd_dec->num); |
438 | |
439 | return 0; |
440 | |
441 | err_dec_reg: |
442 | destroy_workqueue(dev->decode_workqueue); |
443 | err_event_workq: |
444 | v4l2_m2m_release(dev->m2m_dev_dec); |
445 | err_dec_mem_init: |
446 | video_unregister_device(vfd_dec); |
447 | err_dec_alloc: |
448 | v4l2_device_unregister(&dev->v4l2_dev); |
449 | err_res: |
450 | |
451 | return ret; |
452 | } |
453 | |
454 | static const struct of_device_id aml_vcodec_match[] = { |
455 | {.compatible = "amlogic, vcodec-dec",}, |
456 | {}, |
457 | }; |
458 | |
459 | MODULE_DEVICE_TABLE(of, aml_vcodec_match); |
460 | |
461 | static int aml_vcodec_dec_remove(struct platform_device *pdev) |
462 | { |
463 | struct aml_vcodec_dev *dev = platform_get_drvdata(pdev); |
464 | |
465 | flush_workqueue(dev->decode_workqueue); |
466 | destroy_workqueue(dev->decode_workqueue); |
467 | |
468 | if (dev->m2m_dev_dec) |
469 | v4l2_m2m_release(dev->m2m_dev_dec); |
470 | |
471 | if (dev->vfd_dec) |
472 | video_unregister_device(dev->vfd_dec); |
473 | |
474 | v4l2_device_unregister(&dev->v4l2_dev); |
475 | |
476 | return 0; |
477 | } |
478 | |
479 | /*static void aml_vcodec_dev_release(struct device *dev) |
480 | { |
481 | }*/ |
482 | |
483 | static struct platform_driver aml_vcodec_dec_driver = { |
484 | .probe = aml_vcodec_probe, |
485 | .remove = aml_vcodec_dec_remove, |
486 | .driver = { |
487 | .name = AML_VCODEC_DEC_NAME, |
488 | .of_match_table = aml_vcodec_match, |
489 | }, |
490 | }; |
491 | |
492 | /* |
493 | static struct platform_device aml_vcodec_dec_device = { |
494 | .name = AML_VCODEC_DEC_NAME, |
495 | .dev.release = aml_vcodec_dev_release, |
496 | };*/ |
497 | |
498 | module_platform_driver(aml_vcodec_dec_driver); |
499 | |
500 | /* |
501 | static int __init amvdec_ports_init(void) |
502 | { |
503 | int ret; |
504 | |
505 | ret = platform_device_register(&aml_vcodec_dec_device); |
506 | if (ret) |
507 | return ret; |
508 | |
509 | ret = platform_driver_register(&aml_vcodec_dec_driver); |
510 | if (ret) |
511 | platform_device_unregister(&aml_vcodec_dec_device); |
512 | |
513 | return ret; |
514 | } |
515 | |
516 | static void __exit amvdec_ports_exit(void) |
517 | { |
518 | platform_driver_unregister(&aml_vcodec_dec_driver); |
519 | platform_device_unregister(&aml_vcodec_dec_device); |
520 | } |
521 | |
522 | module_init(amvdec_ports_init); |
523 | module_exit(amvdec_ports_exit); |
524 | */ |
525 | |
526 | module_param(aml_v4l2_dbg_level, int, 0644); |
527 | module_param(aml_vcodec_dbg, bool, 0644); |
528 | |
529 | bool aml_set_vfm_enable; |
530 | EXPORT_SYMBOL(aml_set_vfm_enable); |
531 | module_param(aml_set_vfm_enable, bool, 0644); |
532 | |
533 | int aml_set_vfm_path; |
534 | EXPORT_SYMBOL(aml_set_vfm_path); |
535 | module_param(aml_set_vfm_path, int, 0644); |
536 | |
537 | bool aml_set_vdec_type_enable; |
538 | EXPORT_SYMBOL(aml_set_vdec_type_enable); |
539 | module_param(aml_set_vdec_type_enable, bool, 0644); |
540 | |
541 | int aml_set_vdec_type; |
542 | EXPORT_SYMBOL(aml_set_vdec_type); |
543 | module_param(aml_set_vdec_type, int, 0644); |
544 | |
545 | int vp9_need_prefix; |
546 | EXPORT_SYMBOL(vp9_need_prefix); |
547 | module_param(vp9_need_prefix, int, 0644); |
548 | |
549 | bool multiplanar; |
550 | EXPORT_SYMBOL(multiplanar); |
551 | module_param(multiplanar, bool, 0644); |
552 | |
553 | EXPORT_SYMBOL(scatter_mem_enable); |
554 | module_param(scatter_mem_enable, bool, 0644); |
555 | |
556 | EXPORT_SYMBOL(param_sets_from_ucode); |
557 | module_param(param_sets_from_ucode, bool, 0644); |
558 | |
559 | MODULE_LICENSE("GPL v2"); |
560 | MODULE_DESCRIPTION("AML video codec V4L2 decoder driver"); |
561 | |
562 |