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1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* | |
3 | * A virtual codec example device. | |
4 | * | |
5 | * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved. | |
6 | * | |
7 | * This is a virtual codec device driver for testing the codec framework. | |
8 | * It simulates a device that uses memory buffers for both source and | |
9 | * destination and encodes or decodes the data. | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
13 | #include <linux/delay.h> | |
14 | #include <linux/fs.h> | |
15 | #include <linux/sched.h> | |
16 | #include <linux/slab.h> | |
17 | ||
18 | #include <linux/platform_device.h> | |
19 | #include <media/v4l2-mem2mem.h> | |
20 | #include <media/v4l2-device.h> | |
21 | #include <media/v4l2-ioctl.h> | |
22 | #include <media/v4l2-ctrls.h> | |
23 | #include <media/v4l2-event.h> | |
24 | #include <media/videobuf2-vmalloc.h> | |
25 | ||
26 | #include "vicodec-codec.h" | |
27 | ||
28 | MODULE_DESCRIPTION("Virtual codec device"); | |
29 | MODULE_AUTHOR("Hans Verkuil <hans.verkuil@cisco.com>"); | |
30 | MODULE_LICENSE("GPL v2"); | |
31 | ||
32 | static bool multiplanar; | |
33 | module_param(multiplanar, bool, 0444); | |
34 | MODULE_PARM_DESC(multiplanar, | |
35 | " use multi-planar API instead of single-planar API"); | |
36 | ||
37 | static unsigned int debug; | |
38 | module_param(debug, uint, 0644); | |
39 | MODULE_PARM_DESC(debug, " activates debug info"); | |
40 | ||
41 | #define VICODEC_NAME "vicodec" | |
42 | #define MAX_WIDTH 4096U | |
43 | #define MIN_WIDTH 640U | |
44 | #define MAX_HEIGHT 2160U | |
45 | #define MIN_HEIGHT 480U | |
46 | ||
47 | #define dprintk(dev, fmt, arg...) \ | |
48 | v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg) | |
49 | ||
50 | ||
51 | static void vicodec_dev_release(struct device *dev) | |
52 | { | |
53 | } | |
54 | ||
55 | static struct platform_device vicodec_pdev = { | |
56 | .name = VICODEC_NAME, | |
57 | .dev.release = vicodec_dev_release, | |
58 | }; | |
59 | ||
60 | /* Per-queue, driver-specific private data */ | |
61 | struct vicodec_q_data { | |
62 | unsigned int width; | |
63 | unsigned int height; | |
64 | unsigned int flags; | |
65 | unsigned int sizeimage; | |
66 | unsigned int sequence; | |
67 | u32 fourcc; | |
68 | }; | |
69 | ||
70 | enum { | |
71 | V4L2_M2M_SRC = 0, | |
72 | V4L2_M2M_DST = 1, | |
73 | }; | |
74 | ||
75 | struct vicodec_dev { | |
76 | struct v4l2_device v4l2_dev; | |
77 | struct video_device enc_vfd; | |
78 | struct video_device dec_vfd; | |
79 | #ifdef CONFIG_MEDIA_CONTROLLER | |
80 | struct media_device mdev; | |
81 | #endif | |
82 | ||
83 | struct mutex enc_mutex; | |
84 | struct mutex dec_mutex; | |
85 | spinlock_t enc_lock; | |
86 | spinlock_t dec_lock; | |
87 | ||
88 | struct v4l2_m2m_dev *enc_dev; | |
89 | struct v4l2_m2m_dev *dec_dev; | |
90 | }; | |
91 | ||
92 | struct vicodec_ctx { | |
93 | struct v4l2_fh fh; | |
94 | struct vicodec_dev *dev; | |
95 | bool is_enc; | |
96 | spinlock_t *lock; | |
97 | ||
98 | struct v4l2_ctrl_handler hdl; | |
99 | struct v4l2_ctrl *ctrl_gop_size; | |
100 | unsigned int gop_size; | |
101 | unsigned int gop_cnt; | |
102 | ||
103 | /* Abort requested by m2m */ | |
104 | int aborting; | |
105 | struct vb2_v4l2_buffer *last_src_buf; | |
106 | struct vb2_v4l2_buffer *last_dst_buf; | |
107 | ||
108 | enum v4l2_colorspace colorspace; | |
109 | enum v4l2_ycbcr_encoding ycbcr_enc; | |
110 | enum v4l2_xfer_func xfer_func; | |
111 | enum v4l2_quantization quantization; | |
112 | ||
113 | /* Source and destination queue data */ | |
114 | struct vicodec_q_data q_data[2]; | |
115 | struct raw_frame ref_frame; | |
116 | u8 *compressed_frame; | |
117 | u32 cur_buf_offset; | |
118 | u32 comp_max_size; | |
119 | u32 comp_size; | |
120 | u32 comp_magic_cnt; | |
121 | u32 comp_frame_size; | |
122 | bool comp_has_frame; | |
123 | bool comp_has_next_frame; | |
124 | }; | |
125 | ||
126 | static const u32 pixfmts_yuv[] = { | |
127 | V4L2_PIX_FMT_YUV420, | |
128 | V4L2_PIX_FMT_YVU420, | |
129 | V4L2_PIX_FMT_NV12, | |
130 | V4L2_PIX_FMT_NV21, | |
131 | }; | |
132 | ||
133 | static inline struct vicodec_ctx *file2ctx(struct file *file) | |
134 | { | |
135 | return container_of(file->private_data, struct vicodec_ctx, fh); | |
136 | } | |
137 | ||
138 | static struct vicodec_q_data *get_q_data(struct vicodec_ctx *ctx, | |
139 | enum v4l2_buf_type type) | |
140 | { | |
141 | switch (type) { | |
142 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
143 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
144 | return &ctx->q_data[V4L2_M2M_SRC]; | |
145 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
146 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
147 | return &ctx->q_data[V4L2_M2M_DST]; | |
148 | default: | |
149 | WARN_ON(1); | |
150 | break; | |
151 | } | |
152 | return NULL; | |
153 | } | |
154 | ||
155 | static void encode(struct vicodec_ctx *ctx, | |
156 | struct vicodec_q_data *q_data, | |
157 | u8 *p_in, u8 *p_out) | |
158 | { | |
159 | unsigned int size = q_data->width * q_data->height; | |
160 | struct cframe_hdr *p_hdr; | |
161 | struct cframe cf; | |
162 | struct raw_frame rf; | |
163 | u32 encoding; | |
164 | ||
165 | rf.width = q_data->width; | |
166 | rf.height = q_data->height; | |
167 | rf.luma = p_in; | |
168 | ||
169 | switch (q_data->fourcc) { | |
170 | case V4L2_PIX_FMT_YUV420: | |
171 | rf.cb = rf.luma + size; | |
172 | rf.cr = rf.cb + size / 4; | |
173 | rf.chroma_step = 1; | |
174 | break; | |
175 | case V4L2_PIX_FMT_YVU420: | |
176 | rf.cr = rf.luma + size; | |
177 | rf.cb = rf.cr + size / 4; | |
178 | rf.chroma_step = 1; | |
179 | break; | |
180 | case V4L2_PIX_FMT_NV12: | |
181 | rf.cb = rf.luma + size; | |
182 | rf.cr = rf.cb + 1; | |
183 | rf.chroma_step = 2; | |
184 | break; | |
185 | case V4L2_PIX_FMT_NV21: | |
186 | rf.cr = rf.luma + size; | |
187 | rf.cb = rf.cr + 1; | |
188 | rf.chroma_step = 2; | |
189 | break; | |
190 | } | |
191 | ||
192 | cf.width = q_data->width; | |
193 | cf.height = q_data->height; | |
194 | cf.rlc_data = (__be16 *)(p_out + sizeof(*p_hdr)); | |
195 | ||
196 | encoding = encode_frame(&rf, &ctx->ref_frame, &cf, !ctx->gop_cnt, | |
197 | ctx->gop_cnt == ctx->gop_size - 1); | |
198 | if (encoding != FRAME_PCODED) | |
199 | ctx->gop_cnt = 0; | |
200 | if (++ctx->gop_cnt == ctx->gop_size) | |
201 | ctx->gop_cnt = 0; | |
202 | ||
203 | p_hdr = (struct cframe_hdr *)p_out; | |
204 | p_hdr->magic1 = VICODEC_MAGIC1; | |
205 | p_hdr->magic2 = VICODEC_MAGIC2; | |
206 | p_hdr->version = htonl(VICODEC_VERSION); | |
207 | p_hdr->width = htonl(cf.width); | |
208 | p_hdr->height = htonl(cf.height); | |
209 | p_hdr->flags = htonl(q_data->flags); | |
210 | if (encoding & LUMA_UNENCODED) | |
211 | p_hdr->flags |= htonl(VICODEC_FL_LUMA_IS_UNCOMPRESSED); | |
212 | if (encoding & CB_UNENCODED) | |
213 | p_hdr->flags |= htonl(VICODEC_FL_CB_IS_UNCOMPRESSED); | |
214 | if (encoding & CR_UNENCODED) | |
215 | p_hdr->flags |= htonl(VICODEC_FL_CR_IS_UNCOMPRESSED); | |
216 | p_hdr->colorspace = htonl(ctx->colorspace); | |
217 | p_hdr->xfer_func = htonl(ctx->xfer_func); | |
218 | p_hdr->ycbcr_enc = htonl(ctx->ycbcr_enc); | |
219 | p_hdr->quantization = htonl(ctx->quantization); | |
220 | p_hdr->size = htonl(cf.size); | |
221 | ctx->ref_frame.width = cf.width; | |
222 | ctx->ref_frame.height = cf.height; | |
223 | } | |
224 | ||
225 | static int decode(struct vicodec_ctx *ctx, | |
226 | struct vicodec_q_data *q_data, | |
227 | u8 *p_in, u8 *p_out) | |
228 | { | |
229 | unsigned int size = q_data->width * q_data->height; | |
230 | unsigned int i; | |
231 | struct cframe_hdr *p_hdr; | |
232 | struct cframe cf; | |
233 | u8 *p; | |
234 | ||
235 | p_hdr = (struct cframe_hdr *)p_in; | |
236 | cf.width = ntohl(p_hdr->width); | |
237 | cf.height = ntohl(p_hdr->height); | |
238 | q_data->flags = ntohl(p_hdr->flags); | |
239 | ctx->colorspace = ntohl(p_hdr->colorspace); | |
240 | ctx->xfer_func = ntohl(p_hdr->xfer_func); | |
241 | ctx->ycbcr_enc = ntohl(p_hdr->ycbcr_enc); | |
242 | ctx->quantization = ntohl(p_hdr->quantization); | |
243 | cf.rlc_data = (__be16 *)(p_in + sizeof(*p_hdr)); | |
244 | ||
245 | if (p_hdr->magic1 != VICODEC_MAGIC1 || | |
246 | p_hdr->magic2 != VICODEC_MAGIC2 || | |
247 | ntohl(p_hdr->version) != VICODEC_VERSION || | |
248 | cf.width < VICODEC_MIN_WIDTH || | |
249 | cf.width > VICODEC_MAX_WIDTH || | |
250 | cf.height < VICODEC_MIN_HEIGHT || | |
251 | cf.height > VICODEC_MAX_HEIGHT || | |
252 | (cf.width & 7) || (cf.height & 7)) | |
253 | return -EINVAL; | |
254 | ||
255 | /* TODO: support resolution changes */ | |
256 | if (cf.width != q_data->width || cf.height != q_data->height) | |
257 | return -EINVAL; | |
258 | ||
259 | decode_frame(&cf, &ctx->ref_frame, q_data->flags); | |
260 | memcpy(p_out, ctx->ref_frame.luma, size); | |
261 | p_out += size; | |
262 | ||
263 | switch (q_data->fourcc) { | |
264 | case V4L2_PIX_FMT_YUV420: | |
265 | memcpy(p_out, ctx->ref_frame.cb, size / 4); | |
266 | p_out += size / 4; | |
267 | memcpy(p_out, ctx->ref_frame.cr, size / 4); | |
268 | break; | |
269 | case V4L2_PIX_FMT_YVU420: | |
270 | memcpy(p_out, ctx->ref_frame.cr, size / 4); | |
271 | p_out += size / 4; | |
272 | memcpy(p_out, ctx->ref_frame.cb, size / 4); | |
273 | break; | |
274 | case V4L2_PIX_FMT_NV12: | |
275 | for (i = 0, p = p_out; i < size / 4; i++, p += 2) | |
276 | *p = ctx->ref_frame.cb[i]; | |
277 | for (i = 0, p = p_out + 1; i < size / 4; i++, p += 2) | |
278 | *p = ctx->ref_frame.cr[i]; | |
279 | break; | |
280 | case V4L2_PIX_FMT_NV21: | |
281 | for (i = 0, p = p_out; i < size / 4; i++, p += 2) | |
282 | *p = ctx->ref_frame.cr[i]; | |
283 | for (i = 0, p = p_out + 1; i < size / 4; i++, p += 2) | |
284 | *p = ctx->ref_frame.cb[i]; | |
285 | break; | |
286 | } | |
287 | return 0; | |
288 | } | |
289 | ||
290 | static int device_process(struct vicodec_ctx *ctx, | |
291 | struct vb2_v4l2_buffer *in_vb, | |
292 | struct vb2_v4l2_buffer *out_vb) | |
293 | { | |
294 | struct vicodec_dev *dev = ctx->dev; | |
295 | struct vicodec_q_data *q_out, *q_cap; | |
296 | u8 *p_in, *p_out; | |
297 | int ret; | |
298 | ||
299 | q_out = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); | |
300 | q_cap = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); | |
301 | if (ctx->is_enc) | |
302 | p_in = vb2_plane_vaddr(&in_vb->vb2_buf, 0); | |
303 | else | |
304 | p_in = ctx->compressed_frame; | |
305 | p_out = vb2_plane_vaddr(&out_vb->vb2_buf, 0); | |
306 | if (!p_in || !p_out) { | |
307 | v4l2_err(&dev->v4l2_dev, | |
308 | "Acquiring kernel pointers to buffers failed\n"); | |
309 | return -EFAULT; | |
310 | } | |
311 | ||
312 | if (ctx->is_enc) { | |
313 | struct cframe_hdr *p_hdr = (struct cframe_hdr *)p_out; | |
314 | ||
315 | encode(ctx, q_out, p_in, p_out); | |
316 | vb2_set_plane_payload(&out_vb->vb2_buf, 0, | |
317 | sizeof(*p_hdr) + ntohl(p_hdr->size)); | |
318 | } else { | |
319 | ret = decode(ctx, q_cap, p_in, p_out); | |
320 | if (ret) | |
321 | return ret; | |
322 | vb2_set_plane_payload(&out_vb->vb2_buf, 0, | |
323 | q_cap->width * q_cap->height * 3 / 2); | |
324 | } | |
325 | ||
326 | out_vb->sequence = q_cap->sequence++; | |
327 | out_vb->vb2_buf.timestamp = in_vb->vb2_buf.timestamp; | |
328 | ||
329 | if (in_vb->flags & V4L2_BUF_FLAG_TIMECODE) | |
330 | out_vb->timecode = in_vb->timecode; | |
331 | out_vb->field = in_vb->field; | |
332 | out_vb->flags &= ~V4L2_BUF_FLAG_LAST; | |
333 | out_vb->flags |= in_vb->flags & | |
334 | (V4L2_BUF_FLAG_TIMECODE | | |
335 | V4L2_BUF_FLAG_KEYFRAME | | |
336 | V4L2_BUF_FLAG_PFRAME | | |
337 | V4L2_BUF_FLAG_BFRAME | | |
338 | V4L2_BUF_FLAG_TSTAMP_SRC_MASK); | |
339 | ||
340 | return 0; | |
341 | } | |
342 | ||
343 | /* | |
344 | * mem2mem callbacks | |
345 | */ | |
346 | ||
347 | /* device_run() - prepares and starts the device */ | |
348 | static void device_run(void *priv) | |
349 | { | |
350 | static const struct v4l2_event eos_event = { | |
351 | .type = V4L2_EVENT_EOS | |
352 | }; | |
353 | struct vicodec_ctx *ctx = priv; | |
354 | struct vicodec_dev *dev = ctx->dev; | |
355 | struct vb2_v4l2_buffer *src_buf, *dst_buf; | |
356 | struct vicodec_q_data *q_out; | |
357 | u32 state; | |
358 | ||
359 | src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); | |
360 | dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); | |
361 | q_out = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); | |
362 | ||
363 | state = VB2_BUF_STATE_DONE; | |
364 | if (device_process(ctx, src_buf, dst_buf)) | |
365 | state = VB2_BUF_STATE_ERROR; | |
366 | ctx->last_dst_buf = dst_buf; | |
367 | ||
368 | spin_lock(ctx->lock); | |
369 | if (!ctx->comp_has_next_frame && src_buf == ctx->last_src_buf) { | |
370 | dst_buf->flags |= V4L2_BUF_FLAG_LAST; | |
371 | v4l2_event_queue_fh(&ctx->fh, &eos_event); | |
372 | } | |
373 | if (ctx->is_enc) { | |
374 | src_buf->sequence = q_out->sequence++; | |
375 | src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); | |
376 | v4l2_m2m_buf_done(src_buf, state); | |
377 | } else if (vb2_get_plane_payload(&src_buf->vb2_buf, 0) == ctx->cur_buf_offset) { | |
378 | src_buf->sequence = q_out->sequence++; | |
379 | src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); | |
380 | v4l2_m2m_buf_done(src_buf, state); | |
381 | ctx->cur_buf_offset = 0; | |
382 | ctx->comp_has_next_frame = false; | |
383 | } | |
384 | v4l2_m2m_buf_done(dst_buf, state); | |
385 | ctx->comp_size = 0; | |
386 | ctx->comp_magic_cnt = 0; | |
387 | ctx->comp_has_frame = false; | |
388 | spin_unlock(ctx->lock); | |
389 | ||
390 | if (ctx->is_enc) | |
391 | v4l2_m2m_job_finish(dev->enc_dev, ctx->fh.m2m_ctx); | |
392 | else | |
393 | v4l2_m2m_job_finish(dev->dec_dev, ctx->fh.m2m_ctx); | |
394 | } | |
395 | ||
396 | static void job_remove_out_buf(struct vicodec_ctx *ctx, u32 state) | |
397 | { | |
398 | struct vb2_v4l2_buffer *src_buf; | |
399 | struct vicodec_q_data *q_out; | |
400 | ||
401 | q_out = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); | |
402 | spin_lock(ctx->lock); | |
403 | src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); | |
404 | src_buf->sequence = q_out->sequence++; | |
405 | v4l2_m2m_buf_done(src_buf, state); | |
406 | ctx->cur_buf_offset = 0; | |
407 | spin_unlock(ctx->lock); | |
408 | } | |
409 | ||
410 | static int job_ready(void *priv) | |
411 | { | |
412 | static const u8 magic[] = { | |
413 | 0x4f, 0x4f, 0x4f, 0x4f, 0xff, 0xff, 0xff, 0xff | |
414 | }; | |
415 | struct vicodec_ctx *ctx = priv; | |
416 | struct vb2_v4l2_buffer *src_buf; | |
417 | u8 *p_out; | |
418 | u8 *p; | |
419 | u32 sz; | |
420 | u32 state; | |
421 | ||
422 | if (ctx->is_enc || ctx->comp_has_frame) | |
423 | return 1; | |
424 | ||
425 | restart: | |
426 | ctx->comp_has_next_frame = false; | |
427 | src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); | |
428 | if (!src_buf) | |
429 | return 0; | |
430 | p_out = vb2_plane_vaddr(&src_buf->vb2_buf, 0); | |
431 | sz = vb2_get_plane_payload(&src_buf->vb2_buf, 0); | |
432 | p = p_out + ctx->cur_buf_offset; | |
433 | ||
434 | state = VB2_BUF_STATE_DONE; | |
435 | ||
436 | if (!ctx->comp_size) { | |
437 | state = VB2_BUF_STATE_ERROR; | |
438 | for (; p < p_out + sz; p++) { | |
439 | u32 copy; | |
440 | ||
441 | p = memchr(p, magic[ctx->comp_magic_cnt], sz); | |
442 | if (!p) { | |
443 | ctx->comp_magic_cnt = 0; | |
444 | break; | |
445 | } | |
446 | copy = sizeof(magic) - ctx->comp_magic_cnt; | |
447 | if (p_out + sz - p < copy) | |
448 | copy = p_out + sz - p; | |
449 | memcpy(ctx->compressed_frame + ctx->comp_magic_cnt, | |
450 | p, copy); | |
451 | ctx->comp_magic_cnt += copy; | |
452 | if (!memcmp(ctx->compressed_frame, magic, ctx->comp_magic_cnt)) { | |
453 | p += copy; | |
454 | state = VB2_BUF_STATE_DONE; | |
455 | break; | |
456 | } | |
457 | ctx->comp_magic_cnt = 0; | |
458 | } | |
459 | if (ctx->comp_magic_cnt < sizeof(magic)) { | |
460 | job_remove_out_buf(ctx, state); | |
461 | goto restart; | |
462 | } | |
463 | ctx->comp_size = sizeof(magic); | |
464 | } | |
465 | if (ctx->comp_size < sizeof(struct cframe_hdr)) { | |
466 | struct cframe_hdr *p_hdr = (struct cframe_hdr *)ctx->compressed_frame; | |
467 | u32 copy = sizeof(struct cframe_hdr) - ctx->comp_size; | |
468 | ||
469 | if (copy > p_out + sz - p) | |
470 | copy = p_out + sz - p; | |
471 | memcpy(ctx->compressed_frame + ctx->comp_size, | |
472 | p, copy); | |
473 | p += copy; | |
474 | ctx->comp_size += copy; | |
475 | if (ctx->comp_size < sizeof(struct cframe_hdr)) { | |
476 | job_remove_out_buf(ctx, state); | |
477 | goto restart; | |
478 | } | |
479 | ctx->comp_frame_size = ntohl(p_hdr->size) + sizeof(*p_hdr); | |
480 | if (ctx->comp_frame_size > ctx->comp_max_size) | |
481 | ctx->comp_frame_size = ctx->comp_max_size; | |
482 | } | |
483 | if (ctx->comp_size < ctx->comp_frame_size) { | |
484 | u32 copy = ctx->comp_frame_size - ctx->comp_size; | |
485 | ||
486 | if (copy > p_out + sz - p) | |
487 | copy = p_out + sz - p; | |
488 | memcpy(ctx->compressed_frame + ctx->comp_size, | |
489 | p, copy); | |
490 | p += copy; | |
491 | ctx->comp_size += copy; | |
492 | if (ctx->comp_size < ctx->comp_frame_size) { | |
493 | job_remove_out_buf(ctx, state); | |
494 | goto restart; | |
495 | } | |
496 | } | |
497 | ctx->cur_buf_offset = p - p_out; | |
498 | ctx->comp_has_frame = true; | |
499 | ctx->comp_has_next_frame = false; | |
500 | if (sz - ctx->cur_buf_offset >= sizeof(struct cframe_hdr)) { | |
501 | struct cframe_hdr *p_hdr = (struct cframe_hdr *)p; | |
502 | u32 frame_size = ntohl(p_hdr->size); | |
503 | u32 remaining = sz - ctx->cur_buf_offset - sizeof(*p_hdr); | |
504 | ||
505 | if (!memcmp(p, magic, sizeof(magic))) | |
506 | ctx->comp_has_next_frame = remaining >= frame_size; | |
507 | } | |
508 | return 1; | |
509 | } | |
510 | ||
511 | static void job_abort(void *priv) | |
512 | { | |
513 | struct vicodec_ctx *ctx = priv; | |
514 | ||
515 | /* Will cancel the transaction in the next interrupt handler */ | |
516 | ctx->aborting = 1; | |
517 | } | |
518 | ||
519 | /* | |
520 | * video ioctls | |
521 | */ | |
522 | ||
523 | static u32 find_fmt(u32 fmt) | |
524 | { | |
525 | unsigned int i; | |
526 | ||
527 | for (i = 0; i < ARRAY_SIZE(pixfmts_yuv); i++) | |
528 | if (pixfmts_yuv[i] == fmt) | |
529 | return fmt; | |
530 | return pixfmts_yuv[0]; | |
531 | } | |
532 | ||
533 | static int vidioc_querycap(struct file *file, void *priv, | |
534 | struct v4l2_capability *cap) | |
535 | { | |
536 | strncpy(cap->driver, VICODEC_NAME, sizeof(cap->driver) - 1); | |
537 | strncpy(cap->card, VICODEC_NAME, sizeof(cap->card) - 1); | |
538 | snprintf(cap->bus_info, sizeof(cap->bus_info), | |
539 | "platform:%s", VICODEC_NAME); | |
540 | cap->device_caps = V4L2_CAP_STREAMING | | |
541 | (multiplanar ? | |
542 | V4L2_CAP_VIDEO_M2M_MPLANE : | |
543 | V4L2_CAP_VIDEO_M2M); | |
544 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; | |
545 | return 0; | |
546 | } | |
547 | ||
548 | static int enum_fmt(struct v4l2_fmtdesc *f, bool is_enc, bool is_out) | |
549 | { | |
550 | bool is_yuv = (is_enc && is_out) || (!is_enc && !is_out); | |
551 | ||
552 | if (V4L2_TYPE_IS_MULTIPLANAR(f->type) && !multiplanar) | |
553 | return -EINVAL; | |
554 | if (!V4L2_TYPE_IS_MULTIPLANAR(f->type) && multiplanar) | |
555 | return -EINVAL; | |
556 | if (f->index >= (is_yuv ? ARRAY_SIZE(pixfmts_yuv) : 1)) | |
557 | return -EINVAL; | |
558 | ||
559 | if (is_yuv) | |
560 | f->pixelformat = pixfmts_yuv[f->index]; | |
561 | else | |
562 | f->pixelformat = V4L2_PIX_FMT_FWHT; | |
563 | return 0; | |
564 | } | |
565 | ||
566 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, | |
567 | struct v4l2_fmtdesc *f) | |
568 | { | |
569 | struct vicodec_ctx *ctx = file2ctx(file); | |
570 | ||
571 | return enum_fmt(f, ctx->is_enc, false); | |
572 | } | |
573 | ||
574 | static int vidioc_enum_fmt_vid_out(struct file *file, void *priv, | |
575 | struct v4l2_fmtdesc *f) | |
576 | { | |
577 | struct vicodec_ctx *ctx = file2ctx(file); | |
578 | ||
579 | return enum_fmt(f, ctx->is_enc, true); | |
580 | } | |
581 | ||
582 | static int vidioc_g_fmt(struct vicodec_ctx *ctx, struct v4l2_format *f) | |
583 | { | |
584 | struct vb2_queue *vq; | |
585 | struct vicodec_q_data *q_data; | |
586 | struct v4l2_pix_format_mplane *pix_mp; | |
587 | struct v4l2_pix_format *pix; | |
588 | ||
589 | vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); | |
590 | if (!vq) | |
591 | return -EINVAL; | |
592 | ||
593 | q_data = get_q_data(ctx, f->type); | |
594 | ||
595 | switch (f->type) { | |
596 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
597 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
598 | if (multiplanar) | |
599 | return -EINVAL; | |
600 | pix = &f->fmt.pix; | |
601 | pix->width = q_data->width; | |
602 | pix->height = q_data->height; | |
603 | pix->field = V4L2_FIELD_NONE; | |
604 | pix->pixelformat = q_data->fourcc; | |
605 | if (q_data->fourcc == V4L2_PIX_FMT_FWHT) | |
606 | pix->bytesperline = 0; | |
607 | else | |
608 | pix->bytesperline = q_data->width; | |
609 | pix->sizeimage = q_data->sizeimage; | |
610 | pix->colorspace = ctx->colorspace; | |
611 | pix->xfer_func = ctx->xfer_func; | |
612 | pix->ycbcr_enc = ctx->ycbcr_enc; | |
613 | pix->quantization = ctx->quantization; | |
614 | break; | |
615 | ||
616 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
617 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
618 | if (!multiplanar) | |
619 | return -EINVAL; | |
620 | pix_mp = &f->fmt.pix_mp; | |
621 | pix_mp->width = q_data->width; | |
622 | pix_mp->height = q_data->height; | |
623 | pix_mp->field = V4L2_FIELD_NONE; | |
624 | pix_mp->pixelformat = q_data->fourcc; | |
625 | pix_mp->num_planes = 1; | |
626 | if (q_data->fourcc == V4L2_PIX_FMT_FWHT) | |
627 | pix_mp->plane_fmt[0].bytesperline = 0; | |
628 | else | |
629 | pix_mp->plane_fmt[0].bytesperline = q_data->width; | |
630 | pix_mp->plane_fmt[0].sizeimage = q_data->sizeimage; | |
631 | pix_mp->colorspace = ctx->colorspace; | |
632 | pix_mp->xfer_func = ctx->xfer_func; | |
633 | pix_mp->ycbcr_enc = ctx->ycbcr_enc; | |
634 | pix_mp->quantization = ctx->quantization; | |
635 | memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved)); | |
636 | memset(pix_mp->plane_fmt[0].reserved, 0, | |
637 | sizeof(pix_mp->plane_fmt[0].reserved)); | |
638 | break; | |
639 | default: | |
640 | return -EINVAL; | |
641 | } | |
642 | return 0; | |
643 | } | |
644 | ||
645 | static int vidioc_g_fmt_vid_out(struct file *file, void *priv, | |
646 | struct v4l2_format *f) | |
647 | { | |
648 | return vidioc_g_fmt(file2ctx(file), f); | |
649 | } | |
650 | ||
651 | static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, | |
652 | struct v4l2_format *f) | |
653 | { | |
654 | return vidioc_g_fmt(file2ctx(file), f); | |
655 | } | |
656 | ||
657 | static int vidioc_try_fmt(struct vicodec_ctx *ctx, struct v4l2_format *f) | |
658 | { | |
659 | struct v4l2_pix_format_mplane *pix_mp; | |
660 | struct v4l2_pix_format *pix; | |
661 | ||
662 | switch (f->type) { | |
663 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
664 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
665 | pix = &f->fmt.pix; | |
666 | pix->width = clamp(pix->width, MIN_WIDTH, MAX_WIDTH) & ~7; | |
667 | pix->height = clamp(pix->height, MIN_HEIGHT, MAX_HEIGHT) & ~7; | |
668 | pix->bytesperline = pix->width; | |
669 | pix->sizeimage = pix->width * pix->height * 3 / 2; | |
670 | pix->field = V4L2_FIELD_NONE; | |
671 | if (pix->pixelformat == V4L2_PIX_FMT_FWHT) { | |
672 | pix->bytesperline = 0; | |
673 | pix->sizeimage += sizeof(struct cframe_hdr); | |
674 | } | |
675 | break; | |
676 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
677 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
678 | pix_mp = &f->fmt.pix_mp; | |
679 | pix_mp->width = clamp(pix_mp->width, MIN_WIDTH, MAX_WIDTH) & ~7; | |
680 | pix_mp->height = | |
681 | clamp(pix_mp->height, MIN_HEIGHT, MAX_HEIGHT) & ~7; | |
682 | pix_mp->plane_fmt[0].bytesperline = pix_mp->width; | |
683 | pix_mp->plane_fmt[0].sizeimage = | |
684 | pix_mp->width * pix_mp->height * 3 / 2; | |
685 | pix_mp->field = V4L2_FIELD_NONE; | |
686 | pix_mp->num_planes = 1; | |
687 | if (pix_mp->pixelformat == V4L2_PIX_FMT_FWHT) { | |
688 | pix_mp->plane_fmt[0].bytesperline = 0; | |
689 | pix_mp->plane_fmt[0].sizeimage += | |
690 | sizeof(struct cframe_hdr); | |
691 | } | |
692 | memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved)); | |
693 | memset(pix_mp->plane_fmt[0].reserved, 0, | |
694 | sizeof(pix_mp->plane_fmt[0].reserved)); | |
695 | break; | |
696 | default: | |
697 | return -EINVAL; | |
698 | } | |
699 | ||
700 | return 0; | |
701 | } | |
702 | ||
703 | static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, | |
704 | struct v4l2_format *f) | |
705 | { | |
706 | struct vicodec_ctx *ctx = file2ctx(file); | |
707 | struct v4l2_pix_format_mplane *pix_mp; | |
708 | struct v4l2_pix_format *pix; | |
709 | ||
710 | switch (f->type) { | |
711 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
712 | if (multiplanar) | |
713 | return -EINVAL; | |
714 | pix = &f->fmt.pix; | |
715 | pix->pixelformat = ctx->is_enc ? V4L2_PIX_FMT_FWHT : | |
716 | find_fmt(f->fmt.pix.pixelformat); | |
717 | pix->colorspace = ctx->colorspace; | |
718 | pix->xfer_func = ctx->xfer_func; | |
719 | pix->ycbcr_enc = ctx->ycbcr_enc; | |
720 | pix->quantization = ctx->quantization; | |
721 | break; | |
722 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
723 | if (!multiplanar) | |
724 | return -EINVAL; | |
725 | pix_mp = &f->fmt.pix_mp; | |
726 | pix_mp->pixelformat = ctx->is_enc ? V4L2_PIX_FMT_FWHT : | |
727 | find_fmt(pix_mp->pixelformat); | |
728 | pix_mp->colorspace = ctx->colorspace; | |
729 | pix_mp->xfer_func = ctx->xfer_func; | |
730 | pix_mp->ycbcr_enc = ctx->ycbcr_enc; | |
731 | pix_mp->quantization = ctx->quantization; | |
732 | memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved)); | |
733 | memset(pix_mp->plane_fmt[0].reserved, 0, | |
734 | sizeof(pix_mp->plane_fmt[0].reserved)); | |
735 | break; | |
736 | default: | |
737 | return -EINVAL; | |
738 | } | |
739 | ||
740 | return vidioc_try_fmt(ctx, f); | |
741 | } | |
742 | ||
743 | static int vidioc_try_fmt_vid_out(struct file *file, void *priv, | |
744 | struct v4l2_format *f) | |
745 | { | |
746 | struct vicodec_ctx *ctx = file2ctx(file); | |
747 | struct v4l2_pix_format_mplane *pix_mp; | |
748 | struct v4l2_pix_format *pix; | |
749 | ||
750 | switch (f->type) { | |
751 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
752 | if (multiplanar) | |
753 | return -EINVAL; | |
754 | pix = &f->fmt.pix; | |
755 | pix->pixelformat = !ctx->is_enc ? V4L2_PIX_FMT_FWHT : | |
756 | find_fmt(pix->pixelformat); | |
757 | if (!pix->colorspace) | |
758 | pix->colorspace = V4L2_COLORSPACE_REC709; | |
759 | break; | |
760 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
761 | if (!multiplanar) | |
762 | return -EINVAL; | |
763 | pix_mp = &f->fmt.pix_mp; | |
764 | pix_mp->pixelformat = !ctx->is_enc ? V4L2_PIX_FMT_FWHT : | |
765 | find_fmt(pix_mp->pixelformat); | |
766 | if (!pix_mp->colorspace) | |
767 | pix_mp->colorspace = V4L2_COLORSPACE_REC709; | |
768 | break; | |
769 | default: | |
770 | return -EINVAL; | |
771 | } | |
772 | ||
773 | return vidioc_try_fmt(ctx, f); | |
774 | } | |
775 | ||
776 | static int vidioc_s_fmt(struct vicodec_ctx *ctx, struct v4l2_format *f) | |
777 | { | |
778 | struct vicodec_q_data *q_data; | |
779 | struct vb2_queue *vq; | |
780 | bool fmt_changed = true; | |
781 | struct v4l2_pix_format_mplane *pix_mp; | |
782 | struct v4l2_pix_format *pix; | |
783 | ||
784 | vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); | |
785 | if (!vq) | |
786 | return -EINVAL; | |
787 | ||
788 | q_data = get_q_data(ctx, f->type); | |
789 | if (!q_data) | |
790 | return -EINVAL; | |
791 | ||
792 | switch (f->type) { | |
793 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
794 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
795 | pix = &f->fmt.pix; | |
796 | if (ctx->is_enc && V4L2_TYPE_IS_OUTPUT(f->type)) | |
797 | fmt_changed = | |
798 | q_data->fourcc != pix->pixelformat || | |
799 | q_data->width != pix->width || | |
800 | q_data->height != pix->height; | |
801 | ||
802 | if (vb2_is_busy(vq) && fmt_changed) | |
803 | return -EBUSY; | |
804 | ||
805 | q_data->fourcc = pix->pixelformat; | |
806 | q_data->width = pix->width; | |
807 | q_data->height = pix->height; | |
808 | q_data->sizeimage = pix->sizeimage; | |
809 | break; | |
810 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
811 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
812 | pix_mp = &f->fmt.pix_mp; | |
813 | if (ctx->is_enc && V4L2_TYPE_IS_OUTPUT(f->type)) | |
814 | fmt_changed = | |
815 | q_data->fourcc != pix_mp->pixelformat || | |
816 | q_data->width != pix_mp->width || | |
817 | q_data->height != pix_mp->height; | |
818 | ||
819 | if (vb2_is_busy(vq) && fmt_changed) | |
820 | return -EBUSY; | |
821 | ||
822 | q_data->fourcc = pix_mp->pixelformat; | |
823 | q_data->width = pix_mp->width; | |
824 | q_data->height = pix_mp->height; | |
825 | q_data->sizeimage = pix_mp->plane_fmt[0].sizeimage; | |
826 | break; | |
827 | default: | |
828 | return -EINVAL; | |
829 | } | |
830 | ||
831 | dprintk(ctx->dev, | |
832 | "Setting format for type %d, wxh: %dx%d, fourcc: %08x\n", | |
833 | f->type, q_data->width, q_data->height, q_data->fourcc); | |
834 | ||
835 | return 0; | |
836 | } | |
837 | ||
838 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, | |
839 | struct v4l2_format *f) | |
840 | { | |
841 | int ret; | |
842 | ||
843 | ret = vidioc_try_fmt_vid_cap(file, priv, f); | |
844 | if (ret) | |
845 | return ret; | |
846 | ||
847 | return vidioc_s_fmt(file2ctx(file), f); | |
848 | } | |
849 | ||
850 | static int vidioc_s_fmt_vid_out(struct file *file, void *priv, | |
851 | struct v4l2_format *f) | |
852 | { | |
853 | struct vicodec_ctx *ctx = file2ctx(file); | |
854 | struct v4l2_pix_format_mplane *pix_mp; | |
855 | struct v4l2_pix_format *pix; | |
856 | int ret; | |
857 | ||
858 | ret = vidioc_try_fmt_vid_out(file, priv, f); | |
859 | if (ret) | |
860 | return ret; | |
861 | ||
862 | ret = vidioc_s_fmt(file2ctx(file), f); | |
863 | if (!ret) { | |
864 | switch (f->type) { | |
865 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
866 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
867 | pix = &f->fmt.pix; | |
868 | ctx->colorspace = pix->colorspace; | |
869 | ctx->xfer_func = pix->xfer_func; | |
870 | ctx->ycbcr_enc = pix->ycbcr_enc; | |
871 | ctx->quantization = pix->quantization; | |
872 | break; | |
873 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
874 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
875 | pix_mp = &f->fmt.pix_mp; | |
876 | ctx->colorspace = pix_mp->colorspace; | |
877 | ctx->xfer_func = pix_mp->xfer_func; | |
878 | ctx->ycbcr_enc = pix_mp->ycbcr_enc; | |
879 | ctx->quantization = pix_mp->quantization; | |
880 | break; | |
881 | default: | |
882 | break; | |
883 | } | |
884 | } | |
885 | return ret; | |
886 | } | |
887 | ||
888 | static void vicodec_mark_last_buf(struct vicodec_ctx *ctx) | |
889 | { | |
890 | static const struct v4l2_event eos_event = { | |
891 | .type = V4L2_EVENT_EOS | |
892 | }; | |
893 | ||
894 | spin_lock(ctx->lock); | |
895 | ctx->last_src_buf = v4l2_m2m_last_src_buf(ctx->fh.m2m_ctx); | |
896 | if (!ctx->last_src_buf && ctx->last_dst_buf) { | |
897 | ctx->last_dst_buf->flags |= V4L2_BUF_FLAG_LAST; | |
898 | v4l2_event_queue_fh(&ctx->fh, &eos_event); | |
899 | } | |
900 | spin_unlock(ctx->lock); | |
901 | } | |
902 | ||
903 | static int vicodec_try_encoder_cmd(struct file *file, void *fh, | |
904 | struct v4l2_encoder_cmd *ec) | |
905 | { | |
906 | if (ec->cmd != V4L2_ENC_CMD_STOP) | |
907 | return -EINVAL; | |
908 | ||
909 | if (ec->flags & V4L2_ENC_CMD_STOP_AT_GOP_END) | |
910 | return -EINVAL; | |
911 | ||
912 | return 0; | |
913 | } | |
914 | ||
915 | static int vicodec_encoder_cmd(struct file *file, void *fh, | |
916 | struct v4l2_encoder_cmd *ec) | |
917 | { | |
918 | struct vicodec_ctx *ctx = file2ctx(file); | |
919 | int ret; | |
920 | ||
921 | ret = vicodec_try_encoder_cmd(file, fh, ec); | |
922 | if (ret < 0) | |
923 | return ret; | |
924 | ||
925 | vicodec_mark_last_buf(ctx); | |
926 | return 0; | |
927 | } | |
928 | ||
929 | static int vicodec_try_decoder_cmd(struct file *file, void *fh, | |
930 | struct v4l2_decoder_cmd *dc) | |
931 | { | |
932 | if (dc->cmd != V4L2_DEC_CMD_STOP) | |
933 | return -EINVAL; | |
934 | ||
935 | if (dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK) | |
936 | return -EINVAL; | |
937 | ||
938 | if (!(dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY) && (dc->stop.pts != 0)) | |
939 | return -EINVAL; | |
940 | ||
941 | return 0; | |
942 | } | |
943 | ||
944 | static int vicodec_decoder_cmd(struct file *file, void *fh, | |
945 | struct v4l2_decoder_cmd *dc) | |
946 | { | |
947 | struct vicodec_ctx *ctx = file2ctx(file); | |
948 | int ret; | |
949 | ||
950 | ret = vicodec_try_decoder_cmd(file, fh, dc); | |
951 | if (ret < 0) | |
952 | return ret; | |
953 | ||
954 | vicodec_mark_last_buf(ctx); | |
955 | return 0; | |
956 | } | |
957 | ||
958 | static int vicodec_enum_framesizes(struct file *file, void *fh, | |
959 | struct v4l2_frmsizeenum *fsize) | |
960 | { | |
961 | switch (fsize->pixel_format) { | |
962 | case V4L2_PIX_FMT_FWHT: | |
963 | break; | |
964 | default: | |
965 | if (find_fmt(fsize->pixel_format) == fsize->pixel_format) | |
966 | break; | |
967 | return -EINVAL; | |
968 | } | |
969 | ||
970 | if (fsize->index) | |
971 | return -EINVAL; | |
972 | ||
973 | fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; | |
974 | ||
975 | fsize->stepwise.min_width = MIN_WIDTH; | |
976 | fsize->stepwise.max_width = MAX_WIDTH; | |
977 | fsize->stepwise.step_width = 8; | |
978 | fsize->stepwise.min_height = MIN_HEIGHT; | |
979 | fsize->stepwise.max_height = MAX_HEIGHT; | |
980 | fsize->stepwise.step_height = 8; | |
981 | ||
982 | return 0; | |
983 | } | |
984 | ||
985 | static int vicodec_subscribe_event(struct v4l2_fh *fh, | |
986 | const struct v4l2_event_subscription *sub) | |
987 | { | |
988 | switch (sub->type) { | |
989 | case V4L2_EVENT_EOS: | |
990 | return v4l2_event_subscribe(fh, sub, 0, NULL); | |
991 | default: | |
992 | return v4l2_ctrl_subscribe_event(fh, sub); | |
993 | } | |
994 | } | |
995 | ||
996 | static const struct v4l2_ioctl_ops vicodec_ioctl_ops = { | |
997 | .vidioc_querycap = vidioc_querycap, | |
998 | ||
999 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, | |
1000 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, | |
1001 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, | |
1002 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, | |
1003 | ||
1004 | .vidioc_enum_fmt_vid_cap_mplane = vidioc_enum_fmt_vid_cap, | |
1005 | .vidioc_g_fmt_vid_cap_mplane = vidioc_g_fmt_vid_cap, | |
1006 | .vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt_vid_cap, | |
1007 | .vidioc_s_fmt_vid_cap_mplane = vidioc_s_fmt_vid_cap, | |
1008 | ||
1009 | .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out, | |
1010 | .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out, | |
1011 | .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out, | |
1012 | .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out, | |
1013 | ||
1014 | .vidioc_enum_fmt_vid_out_mplane = vidioc_enum_fmt_vid_out, | |
1015 | .vidioc_g_fmt_vid_out_mplane = vidioc_g_fmt_vid_out, | |
1016 | .vidioc_try_fmt_vid_out_mplane = vidioc_try_fmt_vid_out, | |
1017 | .vidioc_s_fmt_vid_out_mplane = vidioc_s_fmt_vid_out, | |
1018 | ||
1019 | .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, | |
1020 | .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, | |
1021 | .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, | |
1022 | .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, | |
1023 | .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, | |
1024 | .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, | |
1025 | .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, | |
1026 | ||
1027 | .vidioc_streamon = v4l2_m2m_ioctl_streamon, | |
1028 | .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, | |
1029 | ||
1030 | .vidioc_try_encoder_cmd = vicodec_try_encoder_cmd, | |
1031 | .vidioc_encoder_cmd = vicodec_encoder_cmd, | |
1032 | .vidioc_try_decoder_cmd = vicodec_try_decoder_cmd, | |
1033 | .vidioc_decoder_cmd = vicodec_decoder_cmd, | |
1034 | .vidioc_enum_framesizes = vicodec_enum_framesizes, | |
1035 | ||
1036 | .vidioc_subscribe_event = vicodec_subscribe_event, | |
1037 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
1038 | }; | |
1039 | ||
1040 | ||
1041 | /* | |
1042 | * Queue operations | |
1043 | */ | |
1044 | ||
1045 | static int vicodec_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, | |
1046 | unsigned int *nplanes, unsigned int sizes[], | |
1047 | struct device *alloc_devs[]) | |
1048 | { | |
1049 | struct vicodec_ctx *ctx = vb2_get_drv_priv(vq); | |
1050 | struct vicodec_q_data *q_data = get_q_data(ctx, vq->type); | |
1051 | unsigned int size = q_data->sizeimage; | |
1052 | ||
1053 | if (*nplanes) | |
1054 | return sizes[0] < size ? -EINVAL : 0; | |
1055 | ||
1056 | *nplanes = 1; | |
1057 | sizes[0] = size; | |
1058 | return 0; | |
1059 | } | |
1060 | ||
1061 | static int vicodec_buf_prepare(struct vb2_buffer *vb) | |
1062 | { | |
1063 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); | |
1064 | struct vicodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); | |
1065 | struct vicodec_q_data *q_data; | |
1066 | ||
1067 | dprintk(ctx->dev, "type: %d\n", vb->vb2_queue->type); | |
1068 | ||
1069 | q_data = get_q_data(ctx, vb->vb2_queue->type); | |
1070 | if (V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) { | |
1071 | if (vbuf->field == V4L2_FIELD_ANY) | |
1072 | vbuf->field = V4L2_FIELD_NONE; | |
1073 | if (vbuf->field != V4L2_FIELD_NONE) { | |
1074 | dprintk(ctx->dev, "%s field isn't supported\n", | |
1075 | __func__); | |
1076 | return -EINVAL; | |
1077 | } | |
1078 | } | |
1079 | ||
1080 | if (vb2_plane_size(vb, 0) < q_data->sizeimage) { | |
1081 | dprintk(ctx->dev, | |
1082 | "%s data will not fit into plane (%lu < %lu)\n", | |
1083 | __func__, vb2_plane_size(vb, 0), | |
1084 | (long)q_data->sizeimage); | |
1085 | return -EINVAL; | |
1086 | } | |
1087 | ||
1088 | return 0; | |
1089 | } | |
1090 | ||
1091 | static void vicodec_buf_queue(struct vb2_buffer *vb) | |
1092 | { | |
1093 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); | |
1094 | struct vicodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); | |
1095 | ||
1096 | v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); | |
1097 | } | |
1098 | ||
1099 | static void vicodec_return_bufs(struct vb2_queue *q, u32 state) | |
1100 | { | |
1101 | struct vicodec_ctx *ctx = vb2_get_drv_priv(q); | |
1102 | struct vb2_v4l2_buffer *vbuf; | |
1103 | ||
1104 | for (;;) { | |
1105 | if (V4L2_TYPE_IS_OUTPUT(q->type)) | |
1106 | vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); | |
1107 | else | |
1108 | vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); | |
1109 | if (vbuf == NULL) | |
1110 | return; | |
1111 | spin_lock(ctx->lock); | |
1112 | v4l2_m2m_buf_done(vbuf, state); | |
1113 | spin_unlock(ctx->lock); | |
1114 | } | |
1115 | } | |
1116 | ||
1117 | static int vicodec_start_streaming(struct vb2_queue *q, | |
1118 | unsigned int count) | |
1119 | { | |
1120 | struct vicodec_ctx *ctx = vb2_get_drv_priv(q); | |
1121 | struct vicodec_q_data *q_data = get_q_data(ctx, q->type); | |
1122 | unsigned int size = q_data->width * q_data->height; | |
1123 | ||
1124 | q_data->sequence = 0; | |
1125 | ||
1126 | if (!V4L2_TYPE_IS_OUTPUT(q->type)) | |
1127 | return 0; | |
1128 | ||
1129 | ctx->ref_frame.width = ctx->ref_frame.height = 0; | |
1130 | ctx->ref_frame.luma = kvmalloc(size * 3 / 2, GFP_KERNEL); | |
1131 | ctx->comp_max_size = size * 3 / 2 + sizeof(struct cframe_hdr); | |
1132 | ctx->compressed_frame = kvmalloc(ctx->comp_max_size, GFP_KERNEL); | |
1133 | if (!ctx->ref_frame.luma || !ctx->compressed_frame) { | |
1134 | kvfree(ctx->ref_frame.luma); | |
1135 | kvfree(ctx->compressed_frame); | |
1136 | vicodec_return_bufs(q, VB2_BUF_STATE_QUEUED); | |
1137 | return -ENOMEM; | |
1138 | } | |
1139 | ctx->ref_frame.cb = ctx->ref_frame.luma + size; | |
1140 | ctx->ref_frame.cr = ctx->ref_frame.cb + size / 4; | |
1141 | ctx->last_src_buf = NULL; | |
1142 | ctx->last_dst_buf = NULL; | |
1143 | v4l2_ctrl_grab(ctx->ctrl_gop_size, true); | |
1144 | ctx->gop_size = v4l2_ctrl_g_ctrl(ctx->ctrl_gop_size); | |
1145 | ctx->gop_cnt = 0; | |
1146 | ctx->cur_buf_offset = 0; | |
1147 | ctx->comp_size = 0; | |
1148 | ctx->comp_magic_cnt = 0; | |
1149 | ctx->comp_has_frame = false; | |
1150 | ||
1151 | return 0; | |
1152 | } | |
1153 | ||
1154 | static void vicodec_stop_streaming(struct vb2_queue *q) | |
1155 | { | |
1156 | struct vicodec_ctx *ctx = vb2_get_drv_priv(q); | |
1157 | ||
1158 | vicodec_return_bufs(q, VB2_BUF_STATE_ERROR); | |
1159 | ||
1160 | if (!V4L2_TYPE_IS_OUTPUT(q->type)) | |
1161 | return; | |
1162 | ||
1163 | kvfree(ctx->ref_frame.luma); | |
1164 | kvfree(ctx->compressed_frame); | |
1165 | v4l2_ctrl_grab(ctx->ctrl_gop_size, false); | |
1166 | } | |
1167 | ||
1168 | static const struct vb2_ops vicodec_qops = { | |
1169 | .queue_setup = vicodec_queue_setup, | |
1170 | .buf_prepare = vicodec_buf_prepare, | |
1171 | .buf_queue = vicodec_buf_queue, | |
1172 | .start_streaming = vicodec_start_streaming, | |
1173 | .stop_streaming = vicodec_stop_streaming, | |
1174 | .wait_prepare = vb2_ops_wait_prepare, | |
1175 | .wait_finish = vb2_ops_wait_finish, | |
1176 | }; | |
1177 | ||
1178 | static int queue_init(void *priv, struct vb2_queue *src_vq, | |
1179 | struct vb2_queue *dst_vq) | |
1180 | { | |
1181 | struct vicodec_ctx *ctx = priv; | |
1182 | int ret; | |
1183 | ||
1184 | src_vq->type = (multiplanar ? | |
1185 | V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE : | |
1186 | V4L2_BUF_TYPE_VIDEO_OUTPUT); | |
1187 | src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; | |
1188 | src_vq->drv_priv = ctx; | |
1189 | src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); | |
1190 | src_vq->ops = &vicodec_qops; | |
1191 | src_vq->mem_ops = &vb2_vmalloc_memops; | |
1192 | src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; | |
1193 | src_vq->lock = ctx->is_enc ? &ctx->dev->enc_mutex : | |
1194 | &ctx->dev->dec_mutex; | |
1195 | ||
1196 | ret = vb2_queue_init(src_vq); | |
1197 | if (ret) | |
1198 | return ret; | |
1199 | ||
1200 | dst_vq->type = (multiplanar ? | |
1201 | V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE : | |
1202 | V4L2_BUF_TYPE_VIDEO_CAPTURE); | |
1203 | dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; | |
1204 | dst_vq->drv_priv = ctx; | |
1205 | dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); | |
1206 | dst_vq->ops = &vicodec_qops; | |
1207 | dst_vq->mem_ops = &vb2_vmalloc_memops; | |
1208 | dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; | |
1209 | dst_vq->lock = src_vq->lock; | |
1210 | ||
1211 | return vb2_queue_init(dst_vq); | |
1212 | } | |
1213 | ||
1214 | /* | |
1215 | * File operations | |
1216 | */ | |
1217 | static int vicodec_open(struct file *file) | |
1218 | { | |
1219 | struct video_device *vfd = video_devdata(file); | |
1220 | struct vicodec_dev *dev = video_drvdata(file); | |
1221 | struct vicodec_ctx *ctx = NULL; | |
1222 | struct v4l2_ctrl_handler *hdl; | |
1223 | unsigned int size; | |
1224 | int rc = 0; | |
1225 | ||
1226 | if (mutex_lock_interruptible(vfd->lock)) | |
1227 | return -ERESTARTSYS; | |
1228 | ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); | |
1229 | if (!ctx) { | |
1230 | rc = -ENOMEM; | |
1231 | goto open_unlock; | |
1232 | } | |
1233 | ||
1234 | if (vfd == &dev->enc_vfd) | |
1235 | ctx->is_enc = true; | |
1236 | ||
1237 | v4l2_fh_init(&ctx->fh, video_devdata(file)); | |
1238 | file->private_data = &ctx->fh; | |
1239 | ctx->dev = dev; | |
1240 | hdl = &ctx->hdl; | |
1241 | v4l2_ctrl_handler_init(hdl, 4); | |
1242 | ctx->ctrl_gop_size = v4l2_ctrl_new_std(hdl, NULL, | |
1243 | V4L2_CID_MPEG_VIDEO_GOP_SIZE, | |
1244 | 1, 16, 1, 10); | |
1245 | if (hdl->error) { | |
1246 | rc = hdl->error; | |
1247 | v4l2_ctrl_handler_free(hdl); | |
1248 | kfree(ctx); | |
1249 | goto open_unlock; | |
1250 | } | |
1251 | ctx->fh.ctrl_handler = hdl; | |
1252 | v4l2_ctrl_handler_setup(hdl); | |
1253 | ||
1254 | ctx->q_data[V4L2_M2M_SRC].fourcc = | |
1255 | ctx->is_enc ? V4L2_PIX_FMT_YUV420 : V4L2_PIX_FMT_FWHT; | |
1256 | ctx->q_data[V4L2_M2M_SRC].width = 1280; | |
1257 | ctx->q_data[V4L2_M2M_SRC].height = 720; | |
1258 | size = 1280 * 720 * 3 / 2; | |
1259 | ctx->q_data[V4L2_M2M_SRC].sizeimage = size; | |
1260 | ctx->q_data[V4L2_M2M_DST] = ctx->q_data[V4L2_M2M_SRC]; | |
1261 | ctx->q_data[V4L2_M2M_DST].fourcc = | |
1262 | ctx->is_enc ? V4L2_PIX_FMT_FWHT : V4L2_PIX_FMT_YUV420; | |
1263 | ctx->colorspace = V4L2_COLORSPACE_REC709; | |
1264 | ||
1265 | size += sizeof(struct cframe_hdr); | |
1266 | if (ctx->is_enc) { | |
1267 | ctx->q_data[V4L2_M2M_DST].sizeimage = size; | |
1268 | ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->enc_dev, ctx, | |
1269 | &queue_init); | |
1270 | ctx->lock = &dev->enc_lock; | |
1271 | } else { | |
1272 | ctx->q_data[V4L2_M2M_SRC].sizeimage = size; | |
1273 | ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->dec_dev, ctx, | |
1274 | &queue_init); | |
1275 | ctx->lock = &dev->dec_lock; | |
1276 | } | |
1277 | ||
1278 | if (IS_ERR(ctx->fh.m2m_ctx)) { | |
1279 | rc = PTR_ERR(ctx->fh.m2m_ctx); | |
1280 | ||
1281 | v4l2_ctrl_handler_free(hdl); | |
1282 | v4l2_fh_exit(&ctx->fh); | |
1283 | kfree(ctx); | |
1284 | goto open_unlock; | |
1285 | } | |
1286 | ||
1287 | v4l2_fh_add(&ctx->fh); | |
1288 | ||
1289 | open_unlock: | |
1290 | mutex_unlock(vfd->lock); | |
1291 | return rc; | |
1292 | } | |
1293 | ||
1294 | static int vicodec_release(struct file *file) | |
1295 | { | |
1296 | struct video_device *vfd = video_devdata(file); | |
1297 | struct vicodec_ctx *ctx = file2ctx(file); | |
1298 | ||
1299 | v4l2_fh_del(&ctx->fh); | |
1300 | v4l2_fh_exit(&ctx->fh); | |
1301 | v4l2_ctrl_handler_free(&ctx->hdl); | |
1302 | mutex_lock(vfd->lock); | |
1303 | v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); | |
1304 | mutex_unlock(vfd->lock); | |
1305 | kfree(ctx); | |
1306 | ||
1307 | return 0; | |
1308 | } | |
1309 | ||
1310 | static const struct v4l2_file_operations vicodec_fops = { | |
1311 | .owner = THIS_MODULE, | |
1312 | .open = vicodec_open, | |
1313 | .release = vicodec_release, | |
1314 | .poll = v4l2_m2m_fop_poll, | |
1315 | .unlocked_ioctl = video_ioctl2, | |
1316 | .mmap = v4l2_m2m_fop_mmap, | |
1317 | }; | |
1318 | ||
1319 | static const struct video_device vicodec_videodev = { | |
1320 | .name = VICODEC_NAME, | |
1321 | .vfl_dir = VFL_DIR_M2M, | |
1322 | .fops = &vicodec_fops, | |
1323 | .ioctl_ops = &vicodec_ioctl_ops, | |
1324 | .minor = -1, | |
1325 | .release = video_device_release_empty, | |
1326 | }; | |
1327 | ||
1328 | static const struct v4l2_m2m_ops m2m_ops = { | |
1329 | .device_run = device_run, | |
1330 | .job_abort = job_abort, | |
1331 | .job_ready = job_ready, | |
1332 | }; | |
1333 | ||
1334 | static int vicodec_probe(struct platform_device *pdev) | |
1335 | { | |
1336 | struct vicodec_dev *dev; | |
1337 | struct video_device *vfd; | |
1338 | int ret; | |
1339 | ||
1340 | dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); | |
1341 | if (!dev) | |
1342 | return -ENOMEM; | |
1343 | ||
1344 | spin_lock_init(&dev->enc_lock); | |
1345 | spin_lock_init(&dev->dec_lock); | |
1346 | ||
1347 | ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); | |
1348 | if (ret) | |
1349 | return ret; | |
1350 | ||
1351 | #ifdef CONFIG_MEDIA_CONTROLLER | |
1352 | dev->mdev.dev = &pdev->dev; | |
1353 | strlcpy(dev->mdev.model, "vicodec", sizeof(dev->mdev.model)); | |
1354 | media_device_init(&dev->mdev); | |
1355 | dev->v4l2_dev.mdev = &dev->mdev; | |
1356 | #endif | |
1357 | ||
1358 | mutex_init(&dev->enc_mutex); | |
1359 | mutex_init(&dev->dec_mutex); | |
1360 | ||
1361 | platform_set_drvdata(pdev, dev); | |
1362 | ||
1363 | dev->enc_dev = v4l2_m2m_init(&m2m_ops); | |
1364 | if (IS_ERR(dev->enc_dev)) { | |
1365 | v4l2_err(&dev->v4l2_dev, "Failed to init vicodec device\n"); | |
1366 | ret = PTR_ERR(dev->enc_dev); | |
1367 | goto unreg_dev; | |
1368 | } | |
1369 | ||
1370 | dev->dec_dev = v4l2_m2m_init(&m2m_ops); | |
1371 | if (IS_ERR(dev->dec_dev)) { | |
1372 | v4l2_err(&dev->v4l2_dev, "Failed to init vicodec device\n"); | |
1373 | ret = PTR_ERR(dev->dec_dev); | |
1374 | goto err_enc_m2m; | |
1375 | } | |
1376 | ||
1377 | dev->enc_vfd = vicodec_videodev; | |
1378 | vfd = &dev->enc_vfd; | |
1379 | vfd->lock = &dev->enc_mutex; | |
1380 | vfd->v4l2_dev = &dev->v4l2_dev; | |
1381 | strlcpy(vfd->name, "vicodec-enc", sizeof(vfd->name)); | |
1382 | v4l2_disable_ioctl(vfd, VIDIOC_DECODER_CMD); | |
1383 | v4l2_disable_ioctl(vfd, VIDIOC_TRY_DECODER_CMD); | |
1384 | video_set_drvdata(vfd, dev); | |
1385 | ||
1386 | ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0); | |
1387 | if (ret) { | |
1388 | v4l2_err(&dev->v4l2_dev, "Failed to register video device\n"); | |
1389 | goto err_dec_m2m; | |
1390 | } | |
1391 | v4l2_info(&dev->v4l2_dev, | |
1392 | "Device registered as /dev/video%d\n", vfd->num); | |
1393 | ||
1394 | dev->dec_vfd = vicodec_videodev; | |
1395 | vfd = &dev->dec_vfd; | |
1396 | vfd->lock = &dev->dec_mutex; | |
1397 | vfd->v4l2_dev = &dev->v4l2_dev; | |
1398 | strlcpy(vfd->name, "vicodec-dec", sizeof(vfd->name)); | |
1399 | v4l2_disable_ioctl(vfd, VIDIOC_ENCODER_CMD); | |
1400 | v4l2_disable_ioctl(vfd, VIDIOC_TRY_ENCODER_CMD); | |
1401 | video_set_drvdata(vfd, dev); | |
1402 | ||
1403 | ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0); | |
1404 | if (ret) { | |
1405 | v4l2_err(&dev->v4l2_dev, "Failed to register video device\n"); | |
1406 | goto unreg_enc; | |
1407 | } | |
1408 | v4l2_info(&dev->v4l2_dev, | |
1409 | "Device registered as /dev/video%d\n", vfd->num); | |
1410 | ||
1411 | #ifdef CONFIG_MEDIA_CONTROLLER | |
1412 | ret = v4l2_m2m_register_media_controller(dev->enc_dev, | |
1413 | &dev->enc_vfd, MEDIA_ENT_F_PROC_VIDEO_ENCODER); | |
1414 | if (ret) { | |
1415 | v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller\n"); | |
1416 | goto unreg_m2m; | |
1417 | } | |
1418 | ||
1419 | ret = v4l2_m2m_register_media_controller(dev->dec_dev, | |
1420 | &dev->dec_vfd, MEDIA_ENT_F_PROC_VIDEO_DECODER); | |
1421 | if (ret) { | |
1422 | v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller\n"); | |
1423 | goto unreg_m2m_enc_mc; | |
1424 | } | |
1425 | ||
1426 | ret = media_device_register(&dev->mdev); | |
1427 | if (ret) { | |
1428 | v4l2_err(&dev->v4l2_dev, "Failed to register mem2mem media device\n"); | |
1429 | goto unreg_m2m_dec_mc; | |
1430 | } | |
1431 | #endif | |
1432 | return 0; | |
1433 | ||
1434 | #ifdef CONFIG_MEDIA_CONTROLLER | |
1435 | unreg_m2m_dec_mc: | |
1436 | v4l2_m2m_unregister_media_controller(dev->dec_dev); | |
1437 | unreg_m2m_enc_mc: | |
1438 | v4l2_m2m_unregister_media_controller(dev->enc_dev); | |
1439 | unreg_m2m: | |
1440 | video_unregister_device(&dev->dec_vfd); | |
1441 | #endif | |
1442 | unreg_enc: | |
1443 | video_unregister_device(&dev->enc_vfd); | |
1444 | err_dec_m2m: | |
1445 | v4l2_m2m_release(dev->dec_dev); | |
1446 | err_enc_m2m: | |
1447 | v4l2_m2m_release(dev->enc_dev); | |
1448 | unreg_dev: | |
1449 | v4l2_device_unregister(&dev->v4l2_dev); | |
1450 | ||
1451 | return ret; | |
1452 | } | |
1453 | ||
1454 | static int vicodec_remove(struct platform_device *pdev) | |
1455 | { | |
1456 | struct vicodec_dev *dev = platform_get_drvdata(pdev); | |
1457 | ||
1458 | v4l2_info(&dev->v4l2_dev, "Removing " VICODEC_NAME); | |
1459 | ||
1460 | #ifdef CONFIG_MEDIA_CONTROLLER | |
1461 | media_device_unregister(&dev->mdev); | |
1462 | v4l2_m2m_unregister_media_controller(dev->enc_dev); | |
1463 | v4l2_m2m_unregister_media_controller(dev->dec_dev); | |
1464 | media_device_cleanup(&dev->mdev); | |
1465 | #endif | |
1466 | ||
1467 | v4l2_m2m_release(dev->enc_dev); | |
1468 | v4l2_m2m_release(dev->dec_dev); | |
1469 | video_unregister_device(&dev->enc_vfd); | |
1470 | video_unregister_device(&dev->dec_vfd); | |
1471 | v4l2_device_unregister(&dev->v4l2_dev); | |
1472 | ||
1473 | return 0; | |
1474 | } | |
1475 | ||
1476 | static struct platform_driver vicodec_pdrv = { | |
1477 | .probe = vicodec_probe, | |
1478 | .remove = vicodec_remove, | |
1479 | .driver = { | |
1480 | .name = VICODEC_NAME, | |
1481 | }, | |
1482 | }; | |
1483 | ||
1484 | static void __exit vicodec_exit(void) | |
1485 | { | |
1486 | platform_driver_unregister(&vicodec_pdrv); | |
1487 | platform_device_unregister(&vicodec_pdev); | |
1488 | } | |
1489 | ||
1490 | static int __init vicodec_init(void) | |
1491 | { | |
1492 | int ret; | |
1493 | ||
1494 | ret = platform_device_register(&vicodec_pdev); | |
1495 | if (ret) | |
1496 | return ret; | |
1497 | ||
1498 | ret = platform_driver_register(&vicodec_pdrv); | |
1499 | if (ret) | |
1500 | platform_device_unregister(&vicodec_pdev); | |
1501 | ||
1502 | return ret; | |
1503 | } | |
1504 | ||
1505 | module_init(vicodec_init); | |
1506 | module_exit(vicodec_exit); |