Commit | Line | Data |
---|---|---|
96d8eab5 PO |
1 | /* |
2 | * A virtual v4l2-mem2mem example device. | |
3 | * | |
4 | * This is a virtual device driver for testing mem-to-mem videobuf framework. | |
5 | * It simulates a device that uses memory buffers for both source and | |
144bd0ee HV |
6 | * destination, processes the data and issues an "irq" (simulated by a delayed |
7 | * workqueue). | |
96d8eab5 PO |
8 | * The device is capable of multi-instance, multi-buffer-per-transaction |
9 | * operation (via the mem2mem framework). | |
10 | * | |
11 | * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd. | |
95072084 | 12 | * Pawel Osciak, <pawel@osciak.com> |
96d8eab5 PO |
13 | * Marek Szyprowski, <m.szyprowski@samsung.com> |
14 | * | |
15 | * This program is free software; you can redistribute it and/or modify | |
16 | * it under the terms of the GNU General Public License as published by the | |
17 | * Free Software Foundation; either version 2 of the | |
18 | * License, or (at your option) any later version | |
19 | */ | |
20 | #include <linux/module.h> | |
21 | #include <linux/delay.h> | |
22 | #include <linux/fs.h> | |
96d8eab5 | 23 | #include <linux/sched.h> |
6b46c397 | 24 | #include <linux/slab.h> |
96d8eab5 PO |
25 | |
26 | #include <linux/platform_device.h> | |
27 | #include <media/v4l2-mem2mem.h> | |
28 | #include <media/v4l2-device.h> | |
29 | #include <media/v4l2-ioctl.h> | |
d3dd59c2 | 30 | #include <media/v4l2-ctrls.h> |
97a3c902 | 31 | #include <media/v4l2-event.h> |
d80ee38c | 32 | #include <media/videobuf2-vmalloc.h> |
96d8eab5 | 33 | |
96d8eab5 | 34 | MODULE_DESCRIPTION("Virtual device for mem2mem framework testing"); |
95072084 | 35 | MODULE_AUTHOR("Pawel Osciak, <pawel@osciak.com>"); |
96d8eab5 | 36 | MODULE_LICENSE("GPL"); |
1990d50b | 37 | MODULE_VERSION("0.1.1"); |
1f923a42 | 38 | MODULE_ALIAS("mem2mem_testdev"); |
96d8eab5 | 39 | |
d95d7c64 HV |
40 | static unsigned debug; |
41 | module_param(debug, uint, 0644); | |
42 | MODULE_PARM_DESC(debug, "activates debug info"); | |
43 | ||
96d8eab5 PO |
44 | #define MIN_W 32 |
45 | #define MIN_H 32 | |
46 | #define MAX_W 640 | |
47 | #define MAX_H 480 | |
9ce3ce4d | 48 | #define DIM_ALIGN_MASK 7 /* 8-byte alignment for line length */ |
96d8eab5 PO |
49 | |
50 | /* Flags that indicate a format can be used for capture/output */ | |
51 | #define MEM2MEM_CAPTURE (1 << 0) | |
52 | #define MEM2MEM_OUTPUT (1 << 1) | |
53 | ||
1f923a42 | 54 | #define MEM2MEM_NAME "vim2m" |
96d8eab5 PO |
55 | |
56 | /* Per queue */ | |
57 | #define MEM2MEM_DEF_NUM_BUFS VIDEO_MAX_FRAME | |
58 | /* In bytes, per queue */ | |
59 | #define MEM2MEM_VID_MEM_LIMIT (16 * 1024 * 1024) | |
60 | ||
61 | /* Default transaction time in msec */ | |
43405831 | 62 | #define MEM2MEM_DEF_TRANSTIME 40 |
96d8eab5 PO |
63 | #define MEM2MEM_COLOR_STEP (0xff >> 4) |
64 | #define MEM2MEM_NUM_TILES 8 | |
65 | ||
80072871 TM |
66 | /* Flags that indicate processing mode */ |
67 | #define MEM2MEM_HFLIP (1 << 0) | |
68 | #define MEM2MEM_VFLIP (1 << 1) | |
69 | ||
96d8eab5 | 70 | #define dprintk(dev, fmt, arg...) \ |
d95d7c64 | 71 | v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg) |
96d8eab5 PO |
72 | |
73 | ||
1f923a42 | 74 | static void vim2m_dev_release(struct device *dev) |
96d8eab5 PO |
75 | {} |
76 | ||
1f923a42 | 77 | static struct platform_device vim2m_pdev = { |
96d8eab5 | 78 | .name = MEM2MEM_NAME, |
1f923a42 | 79 | .dev.release = vim2m_dev_release, |
96d8eab5 PO |
80 | }; |
81 | ||
1f923a42 | 82 | struct vim2m_fmt { |
96d8eab5 PO |
83 | u32 fourcc; |
84 | int depth; | |
85 | /* Types the format can be used for */ | |
86 | u32 types; | |
87 | }; | |
88 | ||
1f923a42 | 89 | static struct vim2m_fmt formats[] = { |
96d8eab5 | 90 | { |
96d8eab5 PO |
91 | .fourcc = V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */ |
92 | .depth = 16, | |
93 | /* Both capture and output format */ | |
94 | .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT, | |
95 | }, | |
96 | { | |
96d8eab5 PO |
97 | .fourcc = V4L2_PIX_FMT_YUYV, |
98 | .depth = 16, | |
99 | /* Output-only format */ | |
100 | .types = MEM2MEM_OUTPUT, | |
101 | }, | |
102 | }; | |
103 | ||
d3dd59c2 HV |
104 | #define NUM_FORMATS ARRAY_SIZE(formats) |
105 | ||
96d8eab5 | 106 | /* Per-queue, driver-specific private data */ |
1f923a42 | 107 | struct vim2m_q_data { |
96d8eab5 PO |
108 | unsigned int width; |
109 | unsigned int height; | |
110 | unsigned int sizeimage; | |
ca5f5fdb | 111 | unsigned int sequence; |
1f923a42 | 112 | struct vim2m_fmt *fmt; |
96d8eab5 PO |
113 | }; |
114 | ||
115 | enum { | |
116 | V4L2_M2M_SRC = 0, | |
117 | V4L2_M2M_DST = 1, | |
118 | }; | |
119 | ||
d3dd59c2 HV |
120 | #define V4L2_CID_TRANS_TIME_MSEC (V4L2_CID_USER_BASE + 0x1000) |
121 | #define V4L2_CID_TRANS_NUM_BUFS (V4L2_CID_USER_BASE + 0x1001) | |
96d8eab5 | 122 | |
1f923a42 | 123 | static struct vim2m_fmt *find_format(struct v4l2_format *f) |
96d8eab5 | 124 | { |
1f923a42 | 125 | struct vim2m_fmt *fmt; |
96d8eab5 PO |
126 | unsigned int k; |
127 | ||
128 | for (k = 0; k < NUM_FORMATS; k++) { | |
129 | fmt = &formats[k]; | |
130 | if (fmt->fourcc == f->fmt.pix.pixelformat) | |
131 | break; | |
132 | } | |
133 | ||
134 | if (k == NUM_FORMATS) | |
135 | return NULL; | |
136 | ||
137 | return &formats[k]; | |
138 | } | |
139 | ||
1f923a42 | 140 | struct vim2m_dev { |
96d8eab5 | 141 | struct v4l2_device v4l2_dev; |
09365420 | 142 | struct video_device vfd; |
e35f7021 HV |
143 | #ifdef CONFIG_MEDIA_CONTROLLER |
144 | struct media_device mdev; | |
145 | #endif | |
96d8eab5 PO |
146 | |
147 | atomic_t num_inst; | |
148 | struct mutex dev_mutex; | |
149 | spinlock_t irqlock; | |
150 | ||
144bd0ee | 151 | struct delayed_work work_run; |
96d8eab5 PO |
152 | |
153 | struct v4l2_m2m_dev *m2m_dev; | |
154 | }; | |
155 | ||
1f923a42 | 156 | struct vim2m_ctx { |
d3dd59c2 | 157 | struct v4l2_fh fh; |
1f923a42 | 158 | struct vim2m_dev *dev; |
96d8eab5 | 159 | |
d3dd59c2 HV |
160 | struct v4l2_ctrl_handler hdl; |
161 | ||
96d8eab5 PO |
162 | /* Processed buffers in this transaction */ |
163 | u8 num_processed; | |
164 | ||
165 | /* Transaction length (i.e. how many buffers per transaction) */ | |
166 | u32 translen; | |
167 | /* Transaction time (i.e. simulated processing time) in milliseconds */ | |
168 | u32 transtime; | |
169 | ||
170 | /* Abort requested by m2m */ | |
171 | int aborting; | |
172 | ||
80072871 TM |
173 | /* Processing mode */ |
174 | int mode; | |
175 | ||
47556ffa | 176 | enum v4l2_colorspace colorspace; |
9f8b3333 HV |
177 | enum v4l2_ycbcr_encoding ycbcr_enc; |
178 | enum v4l2_xfer_func xfer_func; | |
179 | enum v4l2_quantization quant; | |
47556ffa | 180 | |
9f4161a6 | 181 | /* Source and destination queue data */ |
1f923a42 | 182 | struct vim2m_q_data q_data[2]; |
96d8eab5 PO |
183 | }; |
184 | ||
1f923a42 | 185 | static inline struct vim2m_ctx *file2ctx(struct file *file) |
d3dd59c2 | 186 | { |
1f923a42 | 187 | return container_of(file->private_data, struct vim2m_ctx, fh); |
d3dd59c2 HV |
188 | } |
189 | ||
1f923a42 | 190 | static struct vim2m_q_data *get_q_data(struct vim2m_ctx *ctx, |
9f4161a6 TM |
191 | enum v4l2_buf_type type) |
192 | { | |
193 | switch (type) { | |
194 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
195 | return &ctx->q_data[V4L2_M2M_SRC]; | |
196 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
197 | return &ctx->q_data[V4L2_M2M_DST]; | |
198 | default: | |
199 | BUG(); | |
200 | } | |
201 | return NULL; | |
202 | } | |
203 | ||
204 | ||
1f923a42 | 205 | static int device_process(struct vim2m_ctx *ctx, |
2d700715 JS |
206 | struct vb2_v4l2_buffer *in_vb, |
207 | struct vb2_v4l2_buffer *out_vb) | |
96d8eab5 | 208 | { |
1f923a42 HV |
209 | struct vim2m_dev *dev = ctx->dev; |
210 | struct vim2m_q_data *q_data; | |
96d8eab5 PO |
211 | u8 *p_in, *p_out; |
212 | int x, y, t, w; | |
213 | int tile_w, bytes_left; | |
d80ee38c | 214 | int width, height, bytesperline; |
96d8eab5 | 215 | |
9f4161a6 | 216 | q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); |
d80ee38c MS |
217 | |
218 | width = q_data->width; | |
219 | height = q_data->height; | |
220 | bytesperline = (q_data->width * q_data->fmt->depth) >> 3; | |
221 | ||
2d700715 JS |
222 | p_in = vb2_plane_vaddr(&in_vb->vb2_buf, 0); |
223 | p_out = vb2_plane_vaddr(&out_vb->vb2_buf, 0); | |
96d8eab5 PO |
224 | if (!p_in || !p_out) { |
225 | v4l2_err(&dev->v4l2_dev, | |
226 | "Acquiring kernel pointers to buffers failed\n"); | |
227 | return -EFAULT; | |
228 | } | |
229 | ||
2d700715 JS |
230 | if (vb2_plane_size(&in_vb->vb2_buf, 0) > |
231 | vb2_plane_size(&out_vb->vb2_buf, 0)) { | |
96d8eab5 PO |
232 | v4l2_err(&dev->v4l2_dev, "Output buffer is too small\n"); |
233 | return -EINVAL; | |
234 | } | |
235 | ||
d80ee38c | 236 | tile_w = (width * (q_data[V4L2_M2M_DST].fmt->depth >> 3)) |
96d8eab5 | 237 | / MEM2MEM_NUM_TILES; |
d80ee38c | 238 | bytes_left = bytesperline - tile_w * MEM2MEM_NUM_TILES; |
96d8eab5 PO |
239 | w = 0; |
240 | ||
2d700715 JS |
241 | out_vb->sequence = |
242 | get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE)->sequence++; | |
243 | in_vb->sequence = q_data->sequence++; | |
86824694 | 244 | v4l2_m2m_buf_copy_data(in_vb, out_vb, true); |
d95d7c64 | 245 | |
80072871 TM |
246 | switch (ctx->mode) { |
247 | case MEM2MEM_HFLIP | MEM2MEM_VFLIP: | |
248 | p_out += bytesperline * height - bytes_left; | |
249 | for (y = 0; y < height; ++y) { | |
250 | for (t = 0; t < MEM2MEM_NUM_TILES; ++t) { | |
251 | if (w & 0x1) { | |
252 | for (x = 0; x < tile_w; ++x) | |
253 | *--p_out = *p_in++ + | |
254 | MEM2MEM_COLOR_STEP; | |
255 | } else { | |
256 | for (x = 0; x < tile_w; ++x) | |
257 | *--p_out = *p_in++ - | |
258 | MEM2MEM_COLOR_STEP; | |
259 | } | |
260 | ++w; | |
96d8eab5 | 261 | } |
80072871 TM |
262 | p_in += bytes_left; |
263 | p_out -= bytes_left; | |
264 | } | |
265 | break; | |
266 | ||
267 | case MEM2MEM_HFLIP: | |
268 | for (y = 0; y < height; ++y) { | |
269 | p_out += MEM2MEM_NUM_TILES * tile_w; | |
270 | for (t = 0; t < MEM2MEM_NUM_TILES; ++t) { | |
271 | if (w & 0x01) { | |
272 | for (x = 0; x < tile_w; ++x) | |
273 | *--p_out = *p_in++ + | |
274 | MEM2MEM_COLOR_STEP; | |
275 | } else { | |
276 | for (x = 0; x < tile_w; ++x) | |
277 | *--p_out = *p_in++ - | |
278 | MEM2MEM_COLOR_STEP; | |
279 | } | |
280 | ++w; | |
281 | } | |
282 | p_in += bytes_left; | |
283 | p_out += bytesperline; | |
284 | } | |
285 | break; | |
286 | ||
287 | case MEM2MEM_VFLIP: | |
288 | p_out += bytesperline * (height - 1); | |
289 | for (y = 0; y < height; ++y) { | |
290 | for (t = 0; t < MEM2MEM_NUM_TILES; ++t) { | |
291 | if (w & 0x1) { | |
292 | for (x = 0; x < tile_w; ++x) | |
293 | *p_out++ = *p_in++ + | |
294 | MEM2MEM_COLOR_STEP; | |
295 | } else { | |
296 | for (x = 0; x < tile_w; ++x) | |
297 | *p_out++ = *p_in++ - | |
298 | MEM2MEM_COLOR_STEP; | |
299 | } | |
300 | ++w; | |
301 | } | |
302 | p_in += bytes_left; | |
303 | p_out += bytes_left - 2 * bytesperline; | |
304 | } | |
305 | break; | |
306 | ||
307 | default: | |
308 | for (y = 0; y < height; ++y) { | |
309 | for (t = 0; t < MEM2MEM_NUM_TILES; ++t) { | |
310 | if (w & 0x1) { | |
311 | for (x = 0; x < tile_w; ++x) | |
312 | *p_out++ = *p_in++ + | |
313 | MEM2MEM_COLOR_STEP; | |
314 | } else { | |
315 | for (x = 0; x < tile_w; ++x) | |
316 | *p_out++ = *p_in++ - | |
317 | MEM2MEM_COLOR_STEP; | |
318 | } | |
319 | ++w; | |
320 | } | |
321 | p_in += bytes_left; | |
322 | p_out += bytes_left; | |
96d8eab5 | 323 | } |
96d8eab5 PO |
324 | } |
325 | ||
326 | return 0; | |
327 | } | |
328 | ||
96d8eab5 PO |
329 | /* |
330 | * mem2mem callbacks | |
331 | */ | |
332 | ||
cba862dc | 333 | /* |
96d8eab5 PO |
334 | * job_ready() - check whether an instance is ready to be scheduled to run |
335 | */ | |
336 | static int job_ready(void *priv) | |
337 | { | |
1f923a42 | 338 | struct vim2m_ctx *ctx = priv; |
96d8eab5 | 339 | |
20702ebc SN |
340 | if (v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) < ctx->translen |
341 | || v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx) < ctx->translen) { | |
96d8eab5 PO |
342 | dprintk(ctx->dev, "Not enough buffers available\n"); |
343 | return 0; | |
344 | } | |
345 | ||
346 | return 1; | |
347 | } | |
348 | ||
349 | static void job_abort(void *priv) | |
350 | { | |
1f923a42 | 351 | struct vim2m_ctx *ctx = priv; |
96d8eab5 PO |
352 | |
353 | /* Will cancel the transaction in the next interrupt handler */ | |
354 | ctx->aborting = 1; | |
355 | } | |
356 | ||
357 | /* device_run() - prepares and starts the device | |
358 | * | |
359 | * This simulates all the immediate preparations required before starting | |
360 | * a device. This will be called by the framework when it decides to schedule | |
361 | * a particular instance. | |
362 | */ | |
363 | static void device_run(void *priv) | |
364 | { | |
1f923a42 HV |
365 | struct vim2m_ctx *ctx = priv; |
366 | struct vim2m_dev *dev = ctx->dev; | |
2d700715 | 367 | struct vb2_v4l2_buffer *src_buf, *dst_buf; |
96d8eab5 | 368 | |
20702ebc SN |
369 | src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); |
370 | dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); | |
96d8eab5 | 371 | |
86b93b2c HV |
372 | /* Apply request controls if any */ |
373 | v4l2_ctrl_request_setup(src_buf->vb2_buf.req_obj.req, | |
374 | &ctx->hdl); | |
375 | ||
96d8eab5 PO |
376 | device_process(ctx, src_buf, dst_buf); |
377 | ||
86b93b2c HV |
378 | /* Complete request controls if any */ |
379 | v4l2_ctrl_request_complete(src_buf->vb2_buf.req_obj.req, | |
380 | &ctx->hdl); | |
381 | ||
144bd0ee HV |
382 | /* Run delayed work, which simulates a hardware irq */ |
383 | schedule_delayed_work(&dev->work_run, msecs_to_jiffies(ctx->transtime)); | |
96d8eab5 PO |
384 | } |
385 | ||
144bd0ee | 386 | static void device_work(struct work_struct *w) |
96d8eab5 | 387 | { |
144bd0ee HV |
388 | struct vim2m_dev *vim2m_dev = |
389 | container_of(w, struct vim2m_dev, work_run.work); | |
1f923a42 | 390 | struct vim2m_ctx *curr_ctx; |
2d700715 | 391 | struct vb2_v4l2_buffer *src_vb, *dst_vb; |
96d8eab5 PO |
392 | unsigned long flags; |
393 | ||
1f923a42 | 394 | curr_ctx = v4l2_m2m_get_curr_priv(vim2m_dev->m2m_dev); |
96d8eab5 PO |
395 | |
396 | if (NULL == curr_ctx) { | |
26fdcf09 | 397 | pr_err("Instance released before the end of transaction\n"); |
96d8eab5 PO |
398 | return; |
399 | } | |
400 | ||
20702ebc SN |
401 | src_vb = v4l2_m2m_src_buf_remove(curr_ctx->fh.m2m_ctx); |
402 | dst_vb = v4l2_m2m_dst_buf_remove(curr_ctx->fh.m2m_ctx); | |
d80ee38c | 403 | |
96d8eab5 PO |
404 | curr_ctx->num_processed++; |
405 | ||
1f923a42 | 406 | spin_lock_irqsave(&vim2m_dev->irqlock, flags); |
d80ee38c MS |
407 | v4l2_m2m_buf_done(src_vb, VB2_BUF_STATE_DONE); |
408 | v4l2_m2m_buf_done(dst_vb, VB2_BUF_STATE_DONE); | |
1f923a42 | 409 | spin_unlock_irqrestore(&vim2m_dev->irqlock, flags); |
d80ee38c | 410 | |
96d8eab5 PO |
411 | if (curr_ctx->num_processed == curr_ctx->translen |
412 | || curr_ctx->aborting) { | |
413 | dprintk(curr_ctx->dev, "Finishing transaction\n"); | |
414 | curr_ctx->num_processed = 0; | |
1f923a42 | 415 | v4l2_m2m_job_finish(vim2m_dev->m2m_dev, curr_ctx->fh.m2m_ctx); |
96d8eab5 | 416 | } else { |
96d8eab5 PO |
417 | device_run(curr_ctx); |
418 | } | |
419 | } | |
420 | ||
96d8eab5 PO |
421 | /* |
422 | * video ioctls | |
423 | */ | |
424 | static int vidioc_querycap(struct file *file, void *priv, | |
425 | struct v4l2_capability *cap) | |
426 | { | |
427 | strncpy(cap->driver, MEM2MEM_NAME, sizeof(cap->driver) - 1); | |
428 | strncpy(cap->card, MEM2MEM_NAME, sizeof(cap->card) - 1); | |
72c2af6e HV |
429 | snprintf(cap->bus_info, sizeof(cap->bus_info), |
430 | "platform:%s", MEM2MEM_NAME); | |
96d8eab5 PO |
431 | return 0; |
432 | } | |
433 | ||
434 | static int enum_fmt(struct v4l2_fmtdesc *f, u32 type) | |
435 | { | |
436 | int i, num; | |
1f923a42 | 437 | struct vim2m_fmt *fmt; |
96d8eab5 PO |
438 | |
439 | num = 0; | |
440 | ||
441 | for (i = 0; i < NUM_FORMATS; ++i) { | |
442 | if (formats[i].types & type) { | |
443 | /* index-th format of type type found ? */ | |
444 | if (num == f->index) | |
445 | break; | |
446 | /* Correct type but haven't reached our index yet, | |
447 | * just increment per-type index */ | |
448 | ++num; | |
449 | } | |
450 | } | |
451 | ||
452 | if (i < NUM_FORMATS) { | |
453 | /* Format found */ | |
454 | fmt = &formats[i]; | |
96d8eab5 PO |
455 | f->pixelformat = fmt->fourcc; |
456 | return 0; | |
457 | } | |
458 | ||
459 | /* Format not found */ | |
460 | return -EINVAL; | |
461 | } | |
462 | ||
463 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, | |
464 | struct v4l2_fmtdesc *f) | |
465 | { | |
466 | return enum_fmt(f, MEM2MEM_CAPTURE); | |
467 | } | |
468 | ||
469 | static int vidioc_enum_fmt_vid_out(struct file *file, void *priv, | |
470 | struct v4l2_fmtdesc *f) | |
471 | { | |
472 | return enum_fmt(f, MEM2MEM_OUTPUT); | |
473 | } | |
474 | ||
1f923a42 | 475 | static int vidioc_g_fmt(struct vim2m_ctx *ctx, struct v4l2_format *f) |
96d8eab5 | 476 | { |
d80ee38c | 477 | struct vb2_queue *vq; |
1f923a42 | 478 | struct vim2m_q_data *q_data; |
96d8eab5 | 479 | |
20702ebc | 480 | vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); |
96d8eab5 PO |
481 | if (!vq) |
482 | return -EINVAL; | |
483 | ||
9f4161a6 | 484 | q_data = get_q_data(ctx, f->type); |
96d8eab5 PO |
485 | |
486 | f->fmt.pix.width = q_data->width; | |
487 | f->fmt.pix.height = q_data->height; | |
d80ee38c | 488 | f->fmt.pix.field = V4L2_FIELD_NONE; |
96d8eab5 PO |
489 | f->fmt.pix.pixelformat = q_data->fmt->fourcc; |
490 | f->fmt.pix.bytesperline = (q_data->width * q_data->fmt->depth) >> 3; | |
491 | f->fmt.pix.sizeimage = q_data->sizeimage; | |
47556ffa | 492 | f->fmt.pix.colorspace = ctx->colorspace; |
9f8b3333 HV |
493 | f->fmt.pix.xfer_func = ctx->xfer_func; |
494 | f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc; | |
495 | f->fmt.pix.quantization = ctx->quant; | |
96d8eab5 PO |
496 | |
497 | return 0; | |
498 | } | |
499 | ||
500 | static int vidioc_g_fmt_vid_out(struct file *file, void *priv, | |
501 | struct v4l2_format *f) | |
502 | { | |
d3dd59c2 | 503 | return vidioc_g_fmt(file2ctx(file), f); |
96d8eab5 PO |
504 | } |
505 | ||
506 | static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, | |
507 | struct v4l2_format *f) | |
508 | { | |
d3dd59c2 | 509 | return vidioc_g_fmt(file2ctx(file), f); |
96d8eab5 PO |
510 | } |
511 | ||
1f923a42 | 512 | static int vidioc_try_fmt(struct v4l2_format *f, struct vim2m_fmt *fmt) |
96d8eab5 | 513 | { |
96d8eab5 PO |
514 | /* V4L2 specification suggests the driver corrects the format struct |
515 | * if any of the dimensions is unsupported */ | |
96d8eab5 PO |
516 | if (f->fmt.pix.height < MIN_H) |
517 | f->fmt.pix.height = MIN_H; | |
518 | else if (f->fmt.pix.height > MAX_H) | |
519 | f->fmt.pix.height = MAX_H; | |
520 | ||
521 | if (f->fmt.pix.width < MIN_W) | |
522 | f->fmt.pix.width = MIN_W; | |
523 | else if (f->fmt.pix.width > MAX_W) | |
524 | f->fmt.pix.width = MAX_W; | |
525 | ||
526 | f->fmt.pix.width &= ~DIM_ALIGN_MASK; | |
527 | f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3; | |
528 | f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; | |
5c3112b5 | 529 | f->fmt.pix.field = V4L2_FIELD_NONE; |
96d8eab5 PO |
530 | |
531 | return 0; | |
532 | } | |
533 | ||
534 | static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, | |
535 | struct v4l2_format *f) | |
536 | { | |
1f923a42 HV |
537 | struct vim2m_fmt *fmt; |
538 | struct vim2m_ctx *ctx = file2ctx(file); | |
96d8eab5 PO |
539 | |
540 | fmt = find_format(f); | |
4e8ec0a4 HV |
541 | if (!fmt) { |
542 | f->fmt.pix.pixelformat = formats[0].fourcc; | |
543 | fmt = find_format(f); | |
544 | } | |
545 | if (!(fmt->types & MEM2MEM_CAPTURE)) { | |
96d8eab5 PO |
546 | v4l2_err(&ctx->dev->v4l2_dev, |
547 | "Fourcc format (0x%08x) invalid.\n", | |
548 | f->fmt.pix.pixelformat); | |
549 | return -EINVAL; | |
550 | } | |
47556ffa | 551 | f->fmt.pix.colorspace = ctx->colorspace; |
9f8b3333 HV |
552 | f->fmt.pix.xfer_func = ctx->xfer_func; |
553 | f->fmt.pix.ycbcr_enc = ctx->ycbcr_enc; | |
554 | f->fmt.pix.quantization = ctx->quant; | |
96d8eab5 PO |
555 | |
556 | return vidioc_try_fmt(f, fmt); | |
557 | } | |
558 | ||
559 | static int vidioc_try_fmt_vid_out(struct file *file, void *priv, | |
560 | struct v4l2_format *f) | |
561 | { | |
1f923a42 HV |
562 | struct vim2m_fmt *fmt; |
563 | struct vim2m_ctx *ctx = file2ctx(file); | |
96d8eab5 PO |
564 | |
565 | fmt = find_format(f); | |
4e8ec0a4 HV |
566 | if (!fmt) { |
567 | f->fmt.pix.pixelformat = formats[0].fourcc; | |
568 | fmt = find_format(f); | |
569 | } | |
570 | if (!(fmt->types & MEM2MEM_OUTPUT)) { | |
96d8eab5 PO |
571 | v4l2_err(&ctx->dev->v4l2_dev, |
572 | "Fourcc format (0x%08x) invalid.\n", | |
573 | f->fmt.pix.pixelformat); | |
574 | return -EINVAL; | |
575 | } | |
47556ffa HV |
576 | if (!f->fmt.pix.colorspace) |
577 | f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709; | |
96d8eab5 PO |
578 | |
579 | return vidioc_try_fmt(f, fmt); | |
580 | } | |
581 | ||
1f923a42 | 582 | static int vidioc_s_fmt(struct vim2m_ctx *ctx, struct v4l2_format *f) |
96d8eab5 | 583 | { |
1f923a42 | 584 | struct vim2m_q_data *q_data; |
d80ee38c | 585 | struct vb2_queue *vq; |
96d8eab5 | 586 | |
20702ebc | 587 | vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); |
96d8eab5 PO |
588 | if (!vq) |
589 | return -EINVAL; | |
590 | ||
9f4161a6 | 591 | q_data = get_q_data(ctx, f->type); |
96d8eab5 PO |
592 | if (!q_data) |
593 | return -EINVAL; | |
594 | ||
d80ee38c | 595 | if (vb2_is_busy(vq)) { |
96d8eab5 | 596 | v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__); |
07e80305 | 597 | return -EBUSY; |
96d8eab5 PO |
598 | } |
599 | ||
600 | q_data->fmt = find_format(f); | |
601 | q_data->width = f->fmt.pix.width; | |
602 | q_data->height = f->fmt.pix.height; | |
603 | q_data->sizeimage = q_data->width * q_data->height | |
604 | * q_data->fmt->depth >> 3; | |
96d8eab5 PO |
605 | |
606 | dprintk(ctx->dev, | |
607 | "Setting format for type %d, wxh: %dx%d, fmt: %d\n", | |
608 | f->type, q_data->width, q_data->height, q_data->fmt->fourcc); | |
609 | ||
07e80305 | 610 | return 0; |
96d8eab5 PO |
611 | } |
612 | ||
613 | static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, | |
614 | struct v4l2_format *f) | |
615 | { | |
616 | int ret; | |
617 | ||
618 | ret = vidioc_try_fmt_vid_cap(file, priv, f); | |
619 | if (ret) | |
620 | return ret; | |
621 | ||
d3dd59c2 | 622 | return vidioc_s_fmt(file2ctx(file), f); |
96d8eab5 PO |
623 | } |
624 | ||
625 | static int vidioc_s_fmt_vid_out(struct file *file, void *priv, | |
626 | struct v4l2_format *f) | |
627 | { | |
1f923a42 | 628 | struct vim2m_ctx *ctx = file2ctx(file); |
96d8eab5 PO |
629 | int ret; |
630 | ||
631 | ret = vidioc_try_fmt_vid_out(file, priv, f); | |
632 | if (ret) | |
633 | return ret; | |
634 | ||
47556ffa | 635 | ret = vidioc_s_fmt(file2ctx(file), f); |
9f8b3333 | 636 | if (!ret) { |
47556ffa | 637 | ctx->colorspace = f->fmt.pix.colorspace; |
9f8b3333 HV |
638 | ctx->xfer_func = f->fmt.pix.xfer_func; |
639 | ctx->ycbcr_enc = f->fmt.pix.ycbcr_enc; | |
640 | ctx->quant = f->fmt.pix.quantization; | |
641 | } | |
47556ffa | 642 | return ret; |
96d8eab5 PO |
643 | } |
644 | ||
1f923a42 | 645 | static int vim2m_s_ctrl(struct v4l2_ctrl *ctrl) |
96d8eab5 | 646 | { |
1f923a42 HV |
647 | struct vim2m_ctx *ctx = |
648 | container_of(ctrl->handler, struct vim2m_ctx, hdl); | |
96d8eab5 PO |
649 | |
650 | switch (ctrl->id) { | |
80072871 | 651 | case V4L2_CID_HFLIP: |
d3dd59c2 | 652 | if (ctrl->val) |
80072871 TM |
653 | ctx->mode |= MEM2MEM_HFLIP; |
654 | else | |
655 | ctx->mode &= ~MEM2MEM_HFLIP; | |
656 | break; | |
657 | ||
658 | case V4L2_CID_VFLIP: | |
d3dd59c2 | 659 | if (ctrl->val) |
80072871 TM |
660 | ctx->mode |= MEM2MEM_VFLIP; |
661 | else | |
662 | ctx->mode &= ~MEM2MEM_VFLIP; | |
663 | break; | |
664 | ||
96d8eab5 | 665 | case V4L2_CID_TRANS_TIME_MSEC: |
d3dd59c2 | 666 | ctx->transtime = ctrl->val; |
96d8eab5 PO |
667 | break; |
668 | ||
669 | case V4L2_CID_TRANS_NUM_BUFS: | |
d3dd59c2 | 670 | ctx->translen = ctrl->val; |
96d8eab5 PO |
671 | break; |
672 | ||
673 | default: | |
674 | v4l2_err(&ctx->dev->v4l2_dev, "Invalid control\n"); | |
675 | return -EINVAL; | |
676 | } | |
677 | ||
678 | return 0; | |
679 | } | |
680 | ||
1f923a42 HV |
681 | static const struct v4l2_ctrl_ops vim2m_ctrl_ops = { |
682 | .s_ctrl = vim2m_s_ctrl, | |
d3dd59c2 HV |
683 | }; |
684 | ||
96d8eab5 | 685 | |
1f923a42 | 686 | static const struct v4l2_ioctl_ops vim2m_ioctl_ops = { |
96d8eab5 PO |
687 | .vidioc_querycap = vidioc_querycap, |
688 | ||
689 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, | |
690 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, | |
691 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, | |
692 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, | |
693 | ||
694 | .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out, | |
695 | .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out, | |
696 | .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out, | |
697 | .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out, | |
698 | ||
20702ebc SN |
699 | .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, |
700 | .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, | |
701 | .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, | |
702 | .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, | |
7bcff1c2 HV |
703 | .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, |
704 | .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, | |
f5294f45 | 705 | .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, |
96d8eab5 | 706 | |
20702ebc SN |
707 | .vidioc_streamon = v4l2_m2m_ioctl_streamon, |
708 | .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, | |
96d8eab5 | 709 | |
97a3c902 HV |
710 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, |
711 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
96d8eab5 PO |
712 | }; |
713 | ||
714 | ||
715 | /* | |
716 | * Queue operations | |
717 | */ | |
718 | ||
1f923a42 | 719 | static int vim2m_queue_setup(struct vb2_queue *vq, |
fc714e70 | 720 | unsigned int *nbuffers, unsigned int *nplanes, |
36c0f8b3 | 721 | unsigned int sizes[], struct device *alloc_devs[]) |
96d8eab5 | 722 | { |
1f923a42 HV |
723 | struct vim2m_ctx *ctx = vb2_get_drv_priv(vq); |
724 | struct vim2m_q_data *q_data; | |
d80ee38c | 725 | unsigned int size, count = *nbuffers; |
96d8eab5 | 726 | |
9f4161a6 | 727 | q_data = get_q_data(ctx, vq->type); |
96d8eab5 | 728 | |
d80ee38c MS |
729 | size = q_data->width * q_data->height * q_data->fmt->depth >> 3; |
730 | ||
731 | while (size * count > MEM2MEM_VID_MEM_LIMIT) | |
732 | (count)--; | |
df9ecb0c HV |
733 | *nbuffers = count; |
734 | ||
735 | if (*nplanes) | |
736 | return sizes[0] < size ? -EINVAL : 0; | |
96d8eab5 | 737 | |
d80ee38c | 738 | *nplanes = 1; |
d80ee38c | 739 | sizes[0] = size; |
96d8eab5 | 740 | |
d80ee38c | 741 | dprintk(ctx->dev, "get %d buffer(s) of size %d each.\n", count, size); |
96d8eab5 PO |
742 | |
743 | return 0; | |
744 | } | |
745 | ||
1f923a42 | 746 | static int vim2m_buf_prepare(struct vb2_buffer *vb) |
96d8eab5 | 747 | { |
2d700715 | 748 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
1f923a42 HV |
749 | struct vim2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
750 | struct vim2m_q_data *q_data; | |
96d8eab5 | 751 | |
d80ee38c | 752 | dprintk(ctx->dev, "type: %d\n", vb->vb2_queue->type); |
96d8eab5 | 753 | |
9f4161a6 | 754 | q_data = get_q_data(ctx, vb->vb2_queue->type); |
5c3112b5 | 755 | if (V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) { |
2d700715 JS |
756 | if (vbuf->field == V4L2_FIELD_ANY) |
757 | vbuf->field = V4L2_FIELD_NONE; | |
758 | if (vbuf->field != V4L2_FIELD_NONE) { | |
5c3112b5 HV |
759 | dprintk(ctx->dev, "%s field isn't supported\n", |
760 | __func__); | |
761 | return -EINVAL; | |
762 | } | |
763 | } | |
96d8eab5 | 764 | |
d80ee38c MS |
765 | if (vb2_plane_size(vb, 0) < q_data->sizeimage) { |
766 | dprintk(ctx->dev, "%s data will not fit into plane (%lu < %lu)\n", | |
767 | __func__, vb2_plane_size(vb, 0), (long)q_data->sizeimage); | |
96d8eab5 PO |
768 | return -EINVAL; |
769 | } | |
770 | ||
d80ee38c | 771 | vb2_set_plane_payload(vb, 0, q_data->sizeimage); |
96d8eab5 PO |
772 | |
773 | return 0; | |
96d8eab5 PO |
774 | } |
775 | ||
1f923a42 | 776 | static void vim2m_buf_queue(struct vb2_buffer *vb) |
96d8eab5 | 777 | { |
2d700715 | 778 | struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
1f923a42 | 779 | struct vim2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
ca5f5fdb | 780 | |
2d700715 | 781 | v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); |
0f910bf0 MO |
782 | } |
783 | ||
1f923a42 | 784 | static int vim2m_start_streaming(struct vb2_queue *q, unsigned count) |
ca5f5fdb | 785 | { |
1f923a42 HV |
786 | struct vim2m_ctx *ctx = vb2_get_drv_priv(q); |
787 | struct vim2m_q_data *q_data = get_q_data(ctx, q->type); | |
ca5f5fdb HV |
788 | |
789 | q_data->sequence = 0; | |
790 | return 0; | |
791 | } | |
792 | ||
1f923a42 | 793 | static void vim2m_stop_streaming(struct vb2_queue *q) |
a773632c | 794 | { |
1f923a42 | 795 | struct vim2m_ctx *ctx = vb2_get_drv_priv(q); |
52117be6 | 796 | struct vim2m_dev *dev = ctx->dev; |
2d700715 | 797 | struct vb2_v4l2_buffer *vbuf; |
a773632c HV |
798 | unsigned long flags; |
799 | ||
52117be6 | 800 | cancel_delayed_work_sync(&dev->work_run); |
a773632c HV |
801 | for (;;) { |
802 | if (V4L2_TYPE_IS_OUTPUT(q->type)) | |
2d700715 | 803 | vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); |
a773632c | 804 | else |
2d700715 JS |
805 | vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); |
806 | if (vbuf == NULL) | |
e37559b2 | 807 | return; |
86b93b2c HV |
808 | v4l2_ctrl_request_complete(vbuf->vb2_buf.req_obj.req, |
809 | &ctx->hdl); | |
a773632c | 810 | spin_lock_irqsave(&ctx->dev->irqlock, flags); |
2d700715 | 811 | v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR); |
a773632c HV |
812 | spin_unlock_irqrestore(&ctx->dev->irqlock, flags); |
813 | } | |
a773632c HV |
814 | } |
815 | ||
86b93b2c HV |
816 | static void vim2m_buf_request_complete(struct vb2_buffer *vb) |
817 | { | |
818 | struct vim2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); | |
819 | ||
820 | v4l2_ctrl_request_complete(vb->req_obj.req, &ctx->hdl); | |
821 | } | |
822 | ||
b7b361f0 | 823 | static const struct vb2_ops vim2m_qops = { |
1f923a42 HV |
824 | .queue_setup = vim2m_queue_setup, |
825 | .buf_prepare = vim2m_buf_prepare, | |
826 | .buf_queue = vim2m_buf_queue, | |
827 | .start_streaming = vim2m_start_streaming, | |
828 | .stop_streaming = vim2m_stop_streaming, | |
20702ebc SN |
829 | .wait_prepare = vb2_ops_wait_prepare, |
830 | .wait_finish = vb2_ops_wait_finish, | |
86b93b2c | 831 | .buf_request_complete = vim2m_buf_request_complete, |
96d8eab5 PO |
832 | }; |
833 | ||
d80ee38c | 834 | static int queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq) |
96d8eab5 | 835 | { |
1f923a42 | 836 | struct vim2m_ctx *ctx = priv; |
d80ee38c | 837 | int ret; |
96d8eab5 | 838 | |
d80ee38c | 839 | src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; |
782f36ca | 840 | src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; |
d80ee38c MS |
841 | src_vq->drv_priv = ctx; |
842 | src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); | |
1f923a42 | 843 | src_vq->ops = &vim2m_qops; |
d80ee38c | 844 | src_vq->mem_ops = &vb2_vmalloc_memops; |
ade48681 | 845 | src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; |
20702ebc | 846 | src_vq->lock = &ctx->dev->dev_mutex; |
e5079cf1 | 847 | src_vq->supports_requests = true; |
d80ee38c MS |
848 | |
849 | ret = vb2_queue_init(src_vq); | |
850 | if (ret) | |
851 | return ret; | |
96d8eab5 | 852 | |
d80ee38c | 853 | dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
782f36ca | 854 | dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; |
d80ee38c MS |
855 | dst_vq->drv_priv = ctx; |
856 | dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); | |
1f923a42 | 857 | dst_vq->ops = &vim2m_qops; |
d80ee38c | 858 | dst_vq->mem_ops = &vb2_vmalloc_memops; |
ade48681 | 859 | dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; |
20702ebc | 860 | dst_vq->lock = &ctx->dev->dev_mutex; |
d80ee38c MS |
861 | |
862 | return vb2_queue_init(dst_vq); | |
863 | } | |
96d8eab5 | 864 | |
1f923a42 HV |
865 | static const struct v4l2_ctrl_config vim2m_ctrl_trans_time_msec = { |
866 | .ops = &vim2m_ctrl_ops, | |
d3dd59c2 HV |
867 | .id = V4L2_CID_TRANS_TIME_MSEC, |
868 | .name = "Transaction Time (msec)", | |
869 | .type = V4L2_CTRL_TYPE_INTEGER, | |
43405831 | 870 | .def = MEM2MEM_DEF_TRANSTIME, |
d3dd59c2 HV |
871 | .min = 1, |
872 | .max = 10001, | |
43405831 | 873 | .step = 1, |
d3dd59c2 HV |
874 | }; |
875 | ||
1f923a42 HV |
876 | static const struct v4l2_ctrl_config vim2m_ctrl_trans_num_bufs = { |
877 | .ops = &vim2m_ctrl_ops, | |
d3dd59c2 HV |
878 | .id = V4L2_CID_TRANS_NUM_BUFS, |
879 | .name = "Buffers Per Transaction", | |
880 | .type = V4L2_CTRL_TYPE_INTEGER, | |
881 | .def = 1, | |
882 | .min = 1, | |
883 | .max = MEM2MEM_DEF_NUM_BUFS, | |
884 | .step = 1, | |
885 | }; | |
886 | ||
96d8eab5 PO |
887 | /* |
888 | * File operations | |
889 | */ | |
1f923a42 | 890 | static int vim2m_open(struct file *file) |
96d8eab5 | 891 | { |
1f923a42 HV |
892 | struct vim2m_dev *dev = video_drvdata(file); |
893 | struct vim2m_ctx *ctx = NULL; | |
d3dd59c2 | 894 | struct v4l2_ctrl_handler *hdl; |
f4694039 | 895 | int rc = 0; |
96d8eab5 | 896 | |
f4694039 HV |
897 | if (mutex_lock_interruptible(&dev->dev_mutex)) |
898 | return -ERESTARTSYS; | |
56ed221f | 899 | ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); |
f4694039 HV |
900 | if (!ctx) { |
901 | rc = -ENOMEM; | |
902 | goto open_unlock; | |
903 | } | |
96d8eab5 | 904 | |
d3dd59c2 HV |
905 | v4l2_fh_init(&ctx->fh, video_devdata(file)); |
906 | file->private_data = &ctx->fh; | |
96d8eab5 | 907 | ctx->dev = dev; |
d3dd59c2 HV |
908 | hdl = &ctx->hdl; |
909 | v4l2_ctrl_handler_init(hdl, 4); | |
1f923a42 HV |
910 | v4l2_ctrl_new_std(hdl, &vim2m_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0); |
911 | v4l2_ctrl_new_std(hdl, &vim2m_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0); | |
912 | v4l2_ctrl_new_custom(hdl, &vim2m_ctrl_trans_time_msec, NULL); | |
913 | v4l2_ctrl_new_custom(hdl, &vim2m_ctrl_trans_num_bufs, NULL); | |
d3dd59c2 | 914 | if (hdl->error) { |
a7bd7756 | 915 | rc = hdl->error; |
d3dd59c2 | 916 | v4l2_ctrl_handler_free(hdl); |
7c13a4d6 | 917 | kfree(ctx); |
a7bd7756 | 918 | goto open_unlock; |
d3dd59c2 HV |
919 | } |
920 | ctx->fh.ctrl_handler = hdl; | |
921 | v4l2_ctrl_handler_setup(hdl); | |
96d8eab5 | 922 | |
9f4161a6 | 923 | ctx->q_data[V4L2_M2M_SRC].fmt = &formats[0]; |
47556ffa HV |
924 | ctx->q_data[V4L2_M2M_SRC].width = 640; |
925 | ctx->q_data[V4L2_M2M_SRC].height = 480; | |
926 | ctx->q_data[V4L2_M2M_SRC].sizeimage = | |
927 | ctx->q_data[V4L2_M2M_SRC].width * | |
928 | ctx->q_data[V4L2_M2M_SRC].height * | |
929 | (ctx->q_data[V4L2_M2M_SRC].fmt->depth >> 3); | |
930 | ctx->q_data[V4L2_M2M_DST] = ctx->q_data[V4L2_M2M_SRC]; | |
931 | ctx->colorspace = V4L2_COLORSPACE_REC709; | |
9f4161a6 | 932 | |
20702ebc | 933 | ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init); |
d80ee38c | 934 | |
20702ebc SN |
935 | if (IS_ERR(ctx->fh.m2m_ctx)) { |
936 | rc = PTR_ERR(ctx->fh.m2m_ctx); | |
16ee9bb1 | 937 | |
d3dd59c2 | 938 | v4l2_ctrl_handler_free(hdl); |
7c13a4d6 | 939 | v4l2_fh_exit(&ctx->fh); |
96d8eab5 | 940 | kfree(ctx); |
f4694039 | 941 | goto open_unlock; |
96d8eab5 PO |
942 | } |
943 | ||
d3dd59c2 | 944 | v4l2_fh_add(&ctx->fh); |
96d8eab5 PO |
945 | atomic_inc(&dev->num_inst); |
946 | ||
20702ebc SN |
947 | dprintk(dev, "Created instance: %p, m2m_ctx: %p\n", |
948 | ctx, ctx->fh.m2m_ctx); | |
96d8eab5 | 949 | |
f4694039 HV |
950 | open_unlock: |
951 | mutex_unlock(&dev->dev_mutex); | |
a7bd7756 | 952 | return rc; |
96d8eab5 PO |
953 | } |
954 | ||
1f923a42 | 955 | static int vim2m_release(struct file *file) |
96d8eab5 | 956 | { |
1f923a42 HV |
957 | struct vim2m_dev *dev = video_drvdata(file); |
958 | struct vim2m_ctx *ctx = file2ctx(file); | |
96d8eab5 PO |
959 | |
960 | dprintk(dev, "Releasing instance %p\n", ctx); | |
961 | ||
d3dd59c2 HV |
962 | v4l2_fh_del(&ctx->fh); |
963 | v4l2_fh_exit(&ctx->fh); | |
964 | v4l2_ctrl_handler_free(&ctx->hdl); | |
f4694039 | 965 | mutex_lock(&dev->dev_mutex); |
20702ebc | 966 | v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); |
f4694039 | 967 | mutex_unlock(&dev->dev_mutex); |
96d8eab5 PO |
968 | kfree(ctx); |
969 | ||
970 | atomic_dec(&dev->num_inst); | |
971 | ||
972 | return 0; | |
973 | } | |
974 | ||
1f923a42 | 975 | static const struct v4l2_file_operations vim2m_fops = { |
96d8eab5 | 976 | .owner = THIS_MODULE, |
1f923a42 HV |
977 | .open = vim2m_open, |
978 | .release = vim2m_release, | |
20702ebc | 979 | .poll = v4l2_m2m_fop_poll, |
07e80305 | 980 | .unlocked_ioctl = video_ioctl2, |
20702ebc | 981 | .mmap = v4l2_m2m_fop_mmap, |
96d8eab5 PO |
982 | }; |
983 | ||
5303135c | 984 | static const struct video_device vim2m_videodev = { |
96d8eab5 | 985 | .name = MEM2MEM_NAME, |
954f340f | 986 | .vfl_dir = VFL_DIR_M2M, |
1f923a42 HV |
987 | .fops = &vim2m_fops, |
988 | .ioctl_ops = &vim2m_ioctl_ops, | |
96d8eab5 | 989 | .minor = -1, |
09365420 | 990 | .release = video_device_release_empty, |
47fc65fa | 991 | .device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING, |
96d8eab5 PO |
992 | }; |
993 | ||
86ab0b1c | 994 | static const struct v4l2_m2m_ops m2m_ops = { |
96d8eab5 PO |
995 | .device_run = device_run, |
996 | .job_ready = job_ready, | |
997 | .job_abort = job_abort, | |
998 | }; | |
999 | ||
86b93b2c HV |
1000 | static const struct media_device_ops m2m_media_ops = { |
1001 | .req_validate = vb2_request_validate, | |
ef86eaf9 | 1002 | .req_queue = v4l2_m2m_request_queue, |
86b93b2c HV |
1003 | }; |
1004 | ||
1f923a42 | 1005 | static int vim2m_probe(struct platform_device *pdev) |
96d8eab5 | 1006 | { |
1f923a42 | 1007 | struct vim2m_dev *dev; |
96d8eab5 PO |
1008 | struct video_device *vfd; |
1009 | int ret; | |
1010 | ||
38a7996c | 1011 | dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); |
96d8eab5 PO |
1012 | if (!dev) |
1013 | return -ENOMEM; | |
1014 | ||
1015 | spin_lock_init(&dev->irqlock); | |
1016 | ||
1017 | ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); | |
1018 | if (ret) | |
38a7996c | 1019 | return ret; |
96d8eab5 PO |
1020 | |
1021 | atomic_set(&dev->num_inst, 0); | |
1022 | mutex_init(&dev->dev_mutex); | |
1023 | ||
09365420 HV |
1024 | dev->vfd = vim2m_videodev; |
1025 | vfd = &dev->vfd; | |
07e80305 | 1026 | vfd->lock = &dev->dev_mutex; |
8f484d87 | 1027 | vfd->v4l2_dev = &dev->v4l2_dev; |
144bd0ee | 1028 | INIT_DELAYED_WORK(&dev->work_run, device_work); |
96d8eab5 PO |
1029 | |
1030 | ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0); | |
1031 | if (ret) { | |
1032 | v4l2_err(&dev->v4l2_dev, "Failed to register video device\n"); | |
e35f7021 | 1033 | goto unreg_v4l2; |
96d8eab5 PO |
1034 | } |
1035 | ||
1036 | video_set_drvdata(vfd, dev); | |
8f484d87 | 1037 | v4l2_info(&dev->v4l2_dev, |
96d8eab5 PO |
1038 | "Device registered as /dev/video%d\n", vfd->num); |
1039 | ||
96d8eab5 PO |
1040 | platform_set_drvdata(pdev, dev); |
1041 | ||
1042 | dev->m2m_dev = v4l2_m2m_init(&m2m_ops); | |
1043 | if (IS_ERR(dev->m2m_dev)) { | |
1044 | v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n"); | |
1045 | ret = PTR_ERR(dev->m2m_dev); | |
e35f7021 HV |
1046 | goto unreg_dev; |
1047 | } | |
1048 | ||
1049 | #ifdef CONFIG_MEDIA_CONTROLLER | |
1050 | dev->mdev.dev = &pdev->dev; | |
c0decac1 | 1051 | strscpy(dev->mdev.model, "vim2m", sizeof(dev->mdev.model)); |
e35f7021 | 1052 | media_device_init(&dev->mdev); |
86b93b2c | 1053 | dev->mdev.ops = &m2m_media_ops; |
e35f7021 HV |
1054 | dev->v4l2_dev.mdev = &dev->mdev; |
1055 | ||
1056 | ret = v4l2_m2m_register_media_controller(dev->m2m_dev, | |
1057 | vfd, MEDIA_ENT_F_PROC_VIDEO_SCALER); | |
1058 | if (ret) { | |
1059 | v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller\n"); | |
1060 | goto unreg_m2m; | |
96d8eab5 PO |
1061 | } |
1062 | ||
e35f7021 HV |
1063 | ret = media_device_register(&dev->mdev); |
1064 | if (ret) { | |
1065 | v4l2_err(&dev->v4l2_dev, "Failed to register mem2mem media device\n"); | |
1066 | goto unreg_m2m_mc; | |
1067 | } | |
1068 | #endif | |
96d8eab5 PO |
1069 | return 0; |
1070 | ||
e35f7021 HV |
1071 | #ifdef CONFIG_MEDIA_CONTROLLER |
1072 | unreg_m2m_mc: | |
1073 | v4l2_m2m_unregister_media_controller(dev->m2m_dev); | |
1074 | unreg_m2m: | |
b7e13ef7 | 1075 | v4l2_m2m_release(dev->m2m_dev); |
e35f7021 | 1076 | #endif |
96d8eab5 | 1077 | unreg_dev: |
e35f7021 HV |
1078 | video_unregister_device(&dev->vfd); |
1079 | unreg_v4l2: | |
96d8eab5 | 1080 | v4l2_device_unregister(&dev->v4l2_dev); |
96d8eab5 PO |
1081 | |
1082 | return ret; | |
1083 | } | |
1084 | ||
1f923a42 | 1085 | static int vim2m_remove(struct platform_device *pdev) |
96d8eab5 | 1086 | { |
1f923a42 | 1087 | struct vim2m_dev *dev = platform_get_drvdata(pdev); |
96d8eab5 | 1088 | |
1f923a42 | 1089 | v4l2_info(&dev->v4l2_dev, "Removing " MEM2MEM_NAME); |
e35f7021 HV |
1090 | |
1091 | #ifdef CONFIG_MEDIA_CONTROLLER | |
1092 | media_device_unregister(&dev->mdev); | |
1093 | v4l2_m2m_unregister_media_controller(dev->m2m_dev); | |
1094 | media_device_cleanup(&dev->mdev); | |
1095 | #endif | |
96d8eab5 | 1096 | v4l2_m2m_release(dev->m2m_dev); |
09365420 | 1097 | video_unregister_device(&dev->vfd); |
96d8eab5 | 1098 | v4l2_device_unregister(&dev->v4l2_dev); |
96d8eab5 PO |
1099 | |
1100 | return 0; | |
1101 | } | |
1102 | ||
1f923a42 HV |
1103 | static struct platform_driver vim2m_pdrv = { |
1104 | .probe = vim2m_probe, | |
1105 | .remove = vim2m_remove, | |
96d8eab5 PO |
1106 | .driver = { |
1107 | .name = MEM2MEM_NAME, | |
96d8eab5 PO |
1108 | }, |
1109 | }; | |
1110 | ||
1f923a42 | 1111 | static void __exit vim2m_exit(void) |
96d8eab5 | 1112 | { |
1f923a42 HV |
1113 | platform_driver_unregister(&vim2m_pdrv); |
1114 | platform_device_unregister(&vim2m_pdev); | |
96d8eab5 PO |
1115 | } |
1116 | ||
1f923a42 | 1117 | static int __init vim2m_init(void) |
96d8eab5 PO |
1118 | { |
1119 | int ret; | |
1120 | ||
1f923a42 | 1121 | ret = platform_device_register(&vim2m_pdev); |
96d8eab5 PO |
1122 | if (ret) |
1123 | return ret; | |
1124 | ||
1f923a42 | 1125 | ret = platform_driver_register(&vim2m_pdrv); |
96d8eab5 | 1126 | if (ret) |
1f923a42 | 1127 | platform_device_unregister(&vim2m_pdev); |
96d8eab5 | 1128 | |
b20b51f0 | 1129 | return ret; |
96d8eab5 PO |
1130 | } |
1131 | ||
1f923a42 HV |
1132 | module_init(vim2m_init); |
1133 | module_exit(vim2m_exit); |