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5f3cc447 SN |
1 | /* |
2 | * Samsung S5P SoC series camera interface (camera capture) driver | |
3 | * | |
4 | * Copyright (c) 2010 Samsung Electronics Co., Ltd | |
5 | * Author: Sylwester Nawrocki, <s.nawrocki@samsung.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
13 | #include <linux/kernel.h> | |
14 | #include <linux/version.h> | |
15 | #include <linux/types.h> | |
16 | #include <linux/errno.h> | |
17 | #include <linux/bug.h> | |
18 | #include <linux/interrupt.h> | |
19 | #include <linux/device.h> | |
20 | #include <linux/platform_device.h> | |
21 | #include <linux/list.h> | |
22 | #include <linux/slab.h> | |
23 | #include <linux/clk.h> | |
24 | #include <linux/i2c.h> | |
25 | ||
26 | #include <linux/videodev2.h> | |
27 | #include <media/v4l2-device.h> | |
28 | #include <media/v4l2-ioctl.h> | |
29 | #include <media/v4l2-mem2mem.h> | |
2dab38e2 SN |
30 | #include <media/videobuf2-core.h> |
31 | #include <media/videobuf2-dma-contig.h> | |
5f3cc447 SN |
32 | |
33 | #include "fimc-core.h" | |
34 | ||
35 | static struct v4l2_subdev *fimc_subdev_register(struct fimc_dev *fimc, | |
36 | struct s3c_fimc_isp_info *isp_info) | |
37 | { | |
38 | struct i2c_adapter *i2c_adap; | |
39 | struct fimc_vid_cap *vid_cap = &fimc->vid_cap; | |
40 | struct v4l2_subdev *sd = NULL; | |
41 | ||
42 | i2c_adap = i2c_get_adapter(isp_info->i2c_bus_num); | |
43 | if (!i2c_adap) | |
44 | return ERR_PTR(-ENOMEM); | |
45 | ||
46 | sd = v4l2_i2c_new_subdev_board(&vid_cap->v4l2_dev, i2c_adap, | |
9a1f8b34 | 47 | isp_info->board_info, NULL); |
5f3cc447 SN |
48 | if (!sd) { |
49 | v4l2_err(&vid_cap->v4l2_dev, "failed to acquire subdev\n"); | |
50 | return NULL; | |
51 | } | |
52 | ||
53 | v4l2_info(&vid_cap->v4l2_dev, "subdevice %s registered successfuly\n", | |
54 | isp_info->board_info->type); | |
55 | ||
56 | return sd; | |
57 | } | |
58 | ||
59 | static void fimc_subdev_unregister(struct fimc_dev *fimc) | |
60 | { | |
61 | struct fimc_vid_cap *vid_cap = &fimc->vid_cap; | |
62 | struct i2c_client *client; | |
63 | ||
64 | if (vid_cap->input_index < 0) | |
65 | return; /* Subdevice already released or not registered. */ | |
66 | ||
67 | if (vid_cap->sd) { | |
68 | v4l2_device_unregister_subdev(vid_cap->sd); | |
69 | client = v4l2_get_subdevdata(vid_cap->sd); | |
70 | i2c_unregister_device(client); | |
71 | i2c_put_adapter(client->adapter); | |
72 | vid_cap->sd = NULL; | |
73 | } | |
74 | ||
75 | vid_cap->input_index = -1; | |
76 | } | |
77 | ||
78 | /** | |
79 | * fimc_subdev_attach - attach v4l2_subdev to camera host interface | |
80 | * | |
81 | * @fimc: FIMC device information | |
82 | * @index: index to the array of available subdevices, | |
83 | * -1 for full array search or non negative value | |
84 | * to select specific subdevice | |
85 | */ | |
86 | static int fimc_subdev_attach(struct fimc_dev *fimc, int index) | |
87 | { | |
88 | struct fimc_vid_cap *vid_cap = &fimc->vid_cap; | |
89 | struct s3c_platform_fimc *pdata = fimc->pdata; | |
90 | struct s3c_fimc_isp_info *isp_info; | |
91 | struct v4l2_subdev *sd; | |
92 | int i; | |
93 | ||
94 | for (i = 0; i < FIMC_MAX_CAMIF_CLIENTS; ++i) { | |
95 | isp_info = pdata->isp_info[i]; | |
96 | ||
97 | if (!isp_info || (index >= 0 && i != index)) | |
98 | continue; | |
99 | ||
100 | sd = fimc_subdev_register(fimc, isp_info); | |
101 | if (sd) { | |
102 | vid_cap->sd = sd; | |
103 | vid_cap->input_index = i; | |
104 | ||
105 | return 0; | |
106 | } | |
107 | } | |
108 | ||
109 | vid_cap->input_index = -1; | |
110 | vid_cap->sd = NULL; | |
111 | v4l2_err(&vid_cap->v4l2_dev, "fimc%d: sensor attach failed\n", | |
112 | fimc->id); | |
113 | return -ENODEV; | |
114 | } | |
115 | ||
116 | static int fimc_isp_subdev_init(struct fimc_dev *fimc, int index) | |
117 | { | |
118 | struct s3c_fimc_isp_info *isp_info; | |
119 | int ret; | |
120 | ||
121 | ret = fimc_subdev_attach(fimc, index); | |
122 | if (ret) | |
123 | return ret; | |
124 | ||
125 | isp_info = fimc->pdata->isp_info[fimc->vid_cap.input_index]; | |
126 | ret = fimc_hw_set_camera_polarity(fimc, isp_info); | |
127 | if (!ret) { | |
128 | ret = v4l2_subdev_call(fimc->vid_cap.sd, core, | |
129 | s_power, 1); | |
130 | if (!ret) | |
131 | return ret; | |
132 | } | |
133 | ||
134 | fimc_subdev_unregister(fimc); | |
135 | err("ISP initialization failed: %d", ret); | |
136 | return ret; | |
137 | } | |
138 | ||
139 | /* | |
140 | * At least one buffer on the pending_buf_q queue is required. | |
141 | * Locking: The caller holds fimc->slock spinlock. | |
142 | */ | |
143 | int fimc_vid_cap_buf_queue(struct fimc_dev *fimc, | |
2dab38e2 | 144 | struct fimc_vid_buffer *fimc_vb) |
5f3cc447 SN |
145 | { |
146 | struct fimc_vid_cap *cap = &fimc->vid_cap; | |
147 | struct fimc_ctx *ctx = cap->ctx; | |
148 | int ret = 0; | |
149 | ||
150 | BUG_ON(!fimc || !fimc_vb); | |
151 | ||
2dab38e2 | 152 | ret = fimc_prepare_addr(ctx, &fimc_vb->vb, &ctx->d_frame, |
5f3cc447 SN |
153 | &fimc_vb->paddr); |
154 | if (ret) | |
155 | return ret; | |
156 | ||
157 | if (test_bit(ST_CAPT_STREAM, &fimc->state)) { | |
158 | fimc_pending_queue_add(cap, fimc_vb); | |
159 | } else { | |
160 | /* Setup the buffer directly for processing. */ | |
161 | int buf_id = (cap->reqbufs_count == 1) ? -1 : cap->buf_index; | |
162 | fimc_hw_set_output_addr(fimc, &fimc_vb->paddr, buf_id); | |
163 | ||
164 | fimc_vb->index = cap->buf_index; | |
165 | active_queue_add(cap, fimc_vb); | |
166 | ||
167 | if (++cap->buf_index >= FIMC_MAX_OUT_BUFS) | |
168 | cap->buf_index = 0; | |
169 | } | |
170 | return ret; | |
171 | } | |
172 | ||
173 | static int fimc_stop_capture(struct fimc_dev *fimc) | |
174 | { | |
175 | unsigned long flags; | |
176 | struct fimc_vid_cap *cap; | |
2dab38e2 | 177 | struct fimc_vid_buffer *buf; |
5f3cc447 SN |
178 | |
179 | cap = &fimc->vid_cap; | |
180 | ||
181 | if (!fimc_capture_active(fimc)) | |
182 | return 0; | |
183 | ||
184 | spin_lock_irqsave(&fimc->slock, flags); | |
185 | set_bit(ST_CAPT_SHUT, &fimc->state); | |
186 | fimc_deactivate_capture(fimc); | |
187 | spin_unlock_irqrestore(&fimc->slock, flags); | |
188 | ||
189 | wait_event_timeout(fimc->irq_queue, | |
190 | test_bit(ST_CAPT_SHUT, &fimc->state), | |
191 | FIMC_SHUTDOWN_TIMEOUT); | |
192 | ||
193 | ret = v4l2_subdev_call(cap->sd, video, s_stream, 0); | |
194 | if (ret) | |
195 | v4l2_err(&fimc->vid_cap.v4l2_dev, "s_stream(0) failed\n"); | |
196 | ||
197 | spin_lock_irqsave(&fimc->slock, flags); | |
198 | fimc->state &= ~(1 << ST_CAPT_RUN | 1 << ST_CAPT_PEND | | |
199 | 1 << ST_CAPT_STREAM); | |
200 | ||
201 | fimc->vid_cap.active_buf_cnt = 0; | |
2dab38e2 SN |
202 | |
203 | /* Release buffers that were enqueued in the driver by videobuf2. */ | |
204 | while (!list_empty(&cap->pending_buf_q)) { | |
205 | buf = pending_queue_pop(cap); | |
206 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); | |
207 | } | |
208 | ||
209 | while (!list_empty(&cap->active_buf_q)) { | |
210 | buf = active_queue_pop(cap); | |
211 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); | |
212 | } | |
213 | ||
5f3cc447 SN |
214 | spin_unlock_irqrestore(&fimc->slock, flags); |
215 | ||
216 | dbg("state: 0x%lx", fimc->state); | |
217 | return 0; | |
218 | } | |
219 | ||
2dab38e2 SN |
220 | static int start_streaming(struct vb2_queue *q) |
221 | { | |
222 | struct fimc_ctx *ctx = q->drv_priv; | |
223 | struct fimc_dev *fimc = ctx->fimc_dev; | |
224 | struct s3c_fimc_isp_info *isp_info; | |
225 | int ret; | |
226 | ||
227 | ret = v4l2_subdev_call(fimc->vid_cap.sd, video, s_stream, 1); | |
228 | if (ret && ret != -ENOIOCTLCMD) | |
229 | return ret; | |
230 | ||
231 | ret = fimc_prepare_config(ctx, ctx->state); | |
232 | if (ret) | |
233 | return ret; | |
234 | ||
235 | isp_info = fimc->pdata->isp_info[fimc->vid_cap.input_index]; | |
236 | fimc_hw_set_camera_type(fimc, isp_info); | |
237 | fimc_hw_set_camera_source(fimc, isp_info); | |
238 | fimc_hw_set_camera_offset(fimc, &ctx->s_frame); | |
239 | ||
240 | if (ctx->state & FIMC_PARAMS) { | |
241 | ret = fimc_set_scaler_info(ctx); | |
242 | if (ret) { | |
243 | err("Scaler setup error"); | |
244 | return ret; | |
245 | } | |
246 | fimc_hw_set_input_path(ctx); | |
247 | fimc_hw_set_scaler(ctx); | |
248 | fimc_hw_set_target_format(ctx); | |
249 | fimc_hw_set_rotation(ctx); | |
250 | fimc_hw_set_effect(ctx); | |
251 | } | |
252 | ||
253 | fimc_hw_set_output_path(ctx); | |
254 | fimc_hw_set_out_dma(ctx); | |
255 | ||
256 | INIT_LIST_HEAD(&fimc->vid_cap.pending_buf_q); | |
257 | INIT_LIST_HEAD(&fimc->vid_cap.active_buf_q); | |
258 | fimc->vid_cap.active_buf_cnt = 0; | |
259 | fimc->vid_cap.frame_count = 0; | |
260 | fimc->vid_cap.buf_index = fimc_hw_get_frame_index(fimc); | |
261 | ||
262 | set_bit(ST_CAPT_PEND, &fimc->state); | |
263 | ||
264 | return 0; | |
265 | } | |
266 | ||
267 | static int stop_streaming(struct vb2_queue *q) | |
268 | { | |
269 | struct fimc_ctx *ctx = q->drv_priv; | |
270 | struct fimc_dev *fimc = ctx->fimc_dev; | |
271 | unsigned long flags; | |
272 | ||
273 | spin_lock_irqsave(&fimc->slock, flags); | |
274 | if (!fimc_capture_running(fimc) && !fimc_capture_pending(fimc)) { | |
275 | spin_unlock_irqrestore(&fimc->slock, flags); | |
276 | return -EINVAL; | |
277 | } | |
278 | spin_unlock_irqrestore(&fimc->slock, flags); | |
279 | ||
280 | return fimc_stop_capture(fimc); | |
281 | } | |
282 | ||
ef7af59b | 283 | static unsigned int get_plane_size(struct fimc_frame *fr, unsigned int plane) |
2dab38e2 | 284 | { |
ef7af59b | 285 | if (!fr || plane >= fr->fmt->memplanes) |
2dab38e2 SN |
286 | return 0; |
287 | ||
ef7af59b SN |
288 | dbg("%s: w: %d. h: %d. depth[%d]: %d", |
289 | __func__, fr->width, fr->height, plane, fr->fmt->depth[plane]); | |
290 | ||
291 | return fr->f_width * fr->f_height * fr->fmt->depth[plane] / 8; | |
2dab38e2 | 292 | |
2dab38e2 SN |
293 | } |
294 | ||
295 | static int queue_setup(struct vb2_queue *vq, unsigned int *num_buffers, | |
296 | unsigned int *num_planes, unsigned long sizes[], | |
297 | void *allocators[]) | |
298 | { | |
299 | struct fimc_ctx *ctx = vq->drv_priv; | |
ef7af59b SN |
300 | struct fimc_fmt *fmt = ctx->d_frame.fmt; |
301 | int i; | |
2dab38e2 SN |
302 | |
303 | if (!fmt) | |
304 | return -EINVAL; | |
305 | ||
ef7af59b | 306 | *num_planes = fmt->memplanes; |
2dab38e2 SN |
307 | |
308 | dbg("%s, buffer count=%d, plane count=%d", | |
309 | __func__, *num_buffers, *num_planes); | |
2dab38e2 | 310 | |
ef7af59b SN |
311 | for (i = 0; i < fmt->memplanes; i++) { |
312 | sizes[i] = get_plane_size(&ctx->d_frame, i); | |
313 | dbg("plane: %u, plane_size: %lu", i, sizes[i]); | |
314 | allocators[i] = ctx->fimc_dev->alloc_ctx; | |
315 | } | |
2dab38e2 | 316 | |
ef7af59b | 317 | return 0; |
2dab38e2 SN |
318 | } |
319 | ||
320 | static int buffer_init(struct vb2_buffer *vb) | |
321 | { | |
322 | /* TODO: */ | |
323 | return 0; | |
324 | } | |
325 | ||
326 | static int buffer_prepare(struct vb2_buffer *vb) | |
327 | { | |
328 | struct vb2_queue *vq = vb->vb2_queue; | |
329 | struct fimc_ctx *ctx = vq->drv_priv; | |
330 | struct v4l2_device *v4l2_dev = &ctx->fimc_dev->m2m.v4l2_dev; | |
2dab38e2 SN |
331 | int i; |
332 | ||
ef7af59b SN |
333 | if (!ctx->d_frame.fmt || vq->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) |
334 | return -EINVAL; | |
2dab38e2 | 335 | |
ef7af59b SN |
336 | for (i = 0; i < ctx->d_frame.fmt->memplanes; i++) { |
337 | unsigned long size = get_plane_size(&ctx->d_frame, i); | |
2dab38e2 SN |
338 | |
339 | if (vb2_plane_size(vb, i) < size) { | |
340 | v4l2_err(v4l2_dev, "User buffer too small (%ld < %ld)\n", | |
341 | vb2_plane_size(vb, i), size); | |
342 | return -EINVAL; | |
343 | } | |
344 | ||
345 | vb2_set_plane_payload(vb, i, size); | |
346 | } | |
347 | ||
348 | return 0; | |
349 | } | |
350 | ||
351 | static void buffer_queue(struct vb2_buffer *vb) | |
352 | { | |
353 | struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); | |
354 | struct fimc_dev *fimc = ctx->fimc_dev; | |
355 | struct fimc_vid_buffer *buf | |
356 | = container_of(vb, struct fimc_vid_buffer, vb); | |
357 | struct fimc_vid_cap *vid_cap = &fimc->vid_cap; | |
358 | unsigned long flags; | |
359 | ||
360 | spin_lock_irqsave(&fimc->slock, flags); | |
361 | fimc_vid_cap_buf_queue(fimc, buf); | |
362 | ||
363 | dbg("active_buf_cnt: %d", fimc->vid_cap.active_buf_cnt); | |
364 | ||
365 | if (vid_cap->active_buf_cnt >= vid_cap->reqbufs_count || | |
366 | vid_cap->active_buf_cnt >= FIMC_MAX_OUT_BUFS) { | |
367 | if (!test_and_set_bit(ST_CAPT_STREAM, &fimc->state)) { | |
368 | fimc_activate_capture(ctx); | |
369 | dbg(""); | |
370 | } | |
371 | } | |
372 | spin_unlock_irqrestore(&fimc->slock, flags); | |
373 | } | |
374 | ||
375 | static void fimc_lock(struct vb2_queue *vq) | |
376 | { | |
377 | struct fimc_ctx *ctx = vb2_get_drv_priv(vq); | |
378 | mutex_lock(&ctx->fimc_dev->lock); | |
379 | } | |
380 | ||
381 | static void fimc_unlock(struct vb2_queue *vq) | |
382 | { | |
383 | struct fimc_ctx *ctx = vb2_get_drv_priv(vq); | |
384 | mutex_unlock(&ctx->fimc_dev->lock); | |
385 | } | |
386 | ||
387 | static struct vb2_ops fimc_capture_qops = { | |
388 | .queue_setup = queue_setup, | |
389 | .buf_prepare = buffer_prepare, | |
390 | .buf_queue = buffer_queue, | |
391 | .buf_init = buffer_init, | |
392 | .wait_prepare = fimc_unlock, | |
393 | .wait_finish = fimc_lock, | |
394 | .start_streaming = start_streaming, | |
395 | .stop_streaming = stop_streaming, | |
396 | }; | |
397 | ||
5f3cc447 SN |
398 | static int fimc_capture_open(struct file *file) |
399 | { | |
400 | struct fimc_dev *fimc = video_drvdata(file); | |
401 | int ret = 0; | |
402 | ||
403 | dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state); | |
404 | ||
405 | /* Return if the corresponding video mem2mem node is already opened. */ | |
406 | if (fimc_m2m_active(fimc)) | |
407 | return -EBUSY; | |
408 | ||
5f3cc447 SN |
409 | if (++fimc->vid_cap.refcnt == 1) { |
410 | ret = fimc_isp_subdev_init(fimc, -1); | |
411 | if (ret) { | |
412 | fimc->vid_cap.refcnt--; | |
8293ebfc | 413 | return -EIO; |
5f3cc447 SN |
414 | } |
415 | } | |
416 | ||
417 | file->private_data = fimc->vid_cap.ctx; | |
418 | ||
8293ebfc | 419 | return 0; |
5f3cc447 SN |
420 | } |
421 | ||
422 | static int fimc_capture_close(struct file *file) | |
423 | { | |
424 | struct fimc_dev *fimc = video_drvdata(file); | |
425 | ||
5f3cc447 SN |
426 | dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state); |
427 | ||
428 | if (--fimc->vid_cap.refcnt == 0) { | |
429 | fimc_stop_capture(fimc); | |
2dab38e2 | 430 | vb2_queue_release(&fimc->vid_cap.vbq); |
5f3cc447 SN |
431 | |
432 | v4l2_err(&fimc->vid_cap.v4l2_dev, "releasing ISP\n"); | |
2dab38e2 | 433 | |
5f3cc447 SN |
434 | v4l2_subdev_call(fimc->vid_cap.sd, core, s_power, 0); |
435 | fimc_subdev_unregister(fimc); | |
436 | } | |
437 | ||
5f3cc447 SN |
438 | return 0; |
439 | } | |
440 | ||
441 | static unsigned int fimc_capture_poll(struct file *file, | |
442 | struct poll_table_struct *wait) | |
443 | { | |
444 | struct fimc_ctx *ctx = file->private_data; | |
445 | struct fimc_dev *fimc = ctx->fimc_dev; | |
5f3cc447 | 446 | |
8293ebfc | 447 | return vb2_poll(&fimc->vid_cap.vbq, file, wait); |
5f3cc447 SN |
448 | } |
449 | ||
450 | static int fimc_capture_mmap(struct file *file, struct vm_area_struct *vma) | |
451 | { | |
452 | struct fimc_ctx *ctx = file->private_data; | |
453 | struct fimc_dev *fimc = ctx->fimc_dev; | |
5f3cc447 | 454 | |
8293ebfc | 455 | return vb2_mmap(&fimc->vid_cap.vbq, vma); |
5f3cc447 SN |
456 | } |
457 | ||
458 | /* video device file operations */ | |
459 | static const struct v4l2_file_operations fimc_capture_fops = { | |
460 | .owner = THIS_MODULE, | |
461 | .open = fimc_capture_open, | |
462 | .release = fimc_capture_close, | |
463 | .poll = fimc_capture_poll, | |
464 | .unlocked_ioctl = video_ioctl2, | |
465 | .mmap = fimc_capture_mmap, | |
466 | }; | |
467 | ||
468 | static int fimc_vidioc_querycap_capture(struct file *file, void *priv, | |
469 | struct v4l2_capability *cap) | |
470 | { | |
471 | struct fimc_ctx *ctx = file->private_data; | |
472 | struct fimc_dev *fimc = ctx->fimc_dev; | |
473 | ||
474 | strncpy(cap->driver, fimc->pdev->name, sizeof(cap->driver) - 1); | |
475 | strncpy(cap->card, fimc->pdev->name, sizeof(cap->card) - 1); | |
476 | cap->bus_info[0] = 0; | |
477 | cap->version = KERNEL_VERSION(1, 0, 0); | |
ef7af59b SN |
478 | cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE | |
479 | V4L2_CAP_VIDEO_CAPTURE_MPLANE; | |
5f3cc447 SN |
480 | |
481 | return 0; | |
482 | } | |
483 | ||
484 | /* Synchronize formats of the camera interface input and attached sensor. */ | |
485 | static int sync_capture_fmt(struct fimc_ctx *ctx) | |
486 | { | |
487 | struct fimc_frame *frame = &ctx->s_frame; | |
488 | struct fimc_dev *fimc = ctx->fimc_dev; | |
489 | struct v4l2_mbus_framefmt *fmt = &fimc->vid_cap.fmt; | |
490 | int ret; | |
491 | ||
492 | fmt->width = ctx->d_frame.o_width; | |
493 | fmt->height = ctx->d_frame.o_height; | |
494 | ||
495 | ret = v4l2_subdev_call(fimc->vid_cap.sd, video, s_mbus_fmt, fmt); | |
496 | if (ret == -ENOIOCTLCMD) { | |
497 | err("s_mbus_fmt failed"); | |
498 | return ret; | |
499 | } | |
500 | dbg("w: %d, h: %d, code= %d", fmt->width, fmt->height, fmt->code); | |
501 | ||
502 | frame->fmt = find_mbus_format(fmt, FMT_FLAGS_CAM); | |
503 | if (!frame->fmt) { | |
504 | err("fimc source format not found\n"); | |
505 | return -EINVAL; | |
506 | } | |
507 | ||
508 | frame->f_width = fmt->width; | |
509 | frame->f_height = fmt->height; | |
510 | frame->width = fmt->width; | |
511 | frame->height = fmt->height; | |
512 | frame->o_width = fmt->width; | |
513 | frame->o_height = fmt->height; | |
514 | frame->offs_h = 0; | |
515 | frame->offs_v = 0; | |
516 | ||
517 | return 0; | |
518 | } | |
519 | ||
ef7af59b SN |
520 | static int fimc_cap_s_fmt_mplane(struct file *file, void *priv, |
521 | struct v4l2_format *f) | |
5f3cc447 SN |
522 | { |
523 | struct fimc_ctx *ctx = priv; | |
524 | struct fimc_dev *fimc = ctx->fimc_dev; | |
525 | struct fimc_frame *frame; | |
ef7af59b | 526 | struct v4l2_pix_format_mplane *pix; |
5f3cc447 | 527 | int ret; |
ef7af59b | 528 | int i; |
5f3cc447 | 529 | |
ef7af59b | 530 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) |
5f3cc447 SN |
531 | return -EINVAL; |
532 | ||
ef7af59b | 533 | ret = fimc_vidioc_try_fmt_mplane(file, priv, f); |
5f3cc447 SN |
534 | if (ret) |
535 | return ret; | |
536 | ||
ef7af59b SN |
537 | if (vb2_is_streaming(&fimc->vid_cap.vbq) || fimc_capture_active(fimc)) |
538 | return -EBUSY; | |
5f3cc447 SN |
539 | |
540 | frame = &ctx->d_frame; | |
541 | ||
ef7af59b | 542 | pix = &f->fmt.pix_mp; |
5f3cc447 SN |
543 | frame->fmt = find_format(f, FMT_FLAGS_M2M | FMT_FLAGS_CAM); |
544 | if (!frame->fmt) { | |
545 | err("fimc target format not found\n"); | |
8293ebfc | 546 | return -EINVAL; |
5f3cc447 SN |
547 | } |
548 | ||
ef7af59b SN |
549 | for (i = 0; i < frame->fmt->colplanes; i++) |
550 | frame->payload[i] = pix->plane_fmt[i].bytesperline * pix->height; | |
551 | ||
5f3cc447 | 552 | /* Output DMA frame pixel size and offsets. */ |
ef7af59b SN |
553 | frame->f_width = pix->plane_fmt[0].bytesperline * 8 |
554 | / frame->fmt->depth[0]; | |
5f3cc447 SN |
555 | frame->f_height = pix->height; |
556 | frame->width = pix->width; | |
557 | frame->height = pix->height; | |
558 | frame->o_width = pix->width; | |
559 | frame->o_height = pix->height; | |
5f3cc447 SN |
560 | frame->offs_h = 0; |
561 | frame->offs_v = 0; | |
562 | ||
5f3cc447 SN |
563 | ctx->state |= (FIMC_PARAMS | FIMC_DST_FMT); |
564 | ||
8293ebfc | 565 | ret = sync_capture_fmt(ctx); |
5f3cc447 SN |
566 | return ret; |
567 | } | |
568 | ||
569 | static int fimc_cap_enum_input(struct file *file, void *priv, | |
570 | struct v4l2_input *i) | |
571 | { | |
572 | struct fimc_ctx *ctx = priv; | |
573 | struct s3c_platform_fimc *pldata = ctx->fimc_dev->pdata; | |
574 | struct s3c_fimc_isp_info *isp_info; | |
575 | ||
576 | if (i->index >= FIMC_MAX_CAMIF_CLIENTS) | |
577 | return -EINVAL; | |
578 | ||
579 | isp_info = pldata->isp_info[i->index]; | |
580 | if (isp_info == NULL) | |
581 | return -EINVAL; | |
582 | ||
583 | i->type = V4L2_INPUT_TYPE_CAMERA; | |
584 | strncpy(i->name, isp_info->board_info->type, 32); | |
585 | return 0; | |
586 | } | |
587 | ||
588 | static int fimc_cap_s_input(struct file *file, void *priv, | |
589 | unsigned int i) | |
590 | { | |
591 | struct fimc_ctx *ctx = priv; | |
592 | struct fimc_dev *fimc = ctx->fimc_dev; | |
593 | struct s3c_platform_fimc *pdata = fimc->pdata; | |
5f3cc447 SN |
594 | |
595 | if (fimc_capture_active(ctx->fimc_dev)) | |
596 | return -EBUSY; | |
597 | ||
8293ebfc SN |
598 | if (i >= FIMC_MAX_CAMIF_CLIENTS || !pdata->isp_info[i]) |
599 | return -EINVAL; | |
5f3cc447 | 600 | |
5f3cc447 SN |
601 | |
602 | if (fimc->vid_cap.sd) { | |
8293ebfc | 603 | int ret = v4l2_subdev_call(fimc->vid_cap.sd, core, s_power, 0); |
5f3cc447 SN |
604 | if (ret) |
605 | err("s_power failed: %d", ret); | |
606 | } | |
607 | ||
608 | /* Release the attached sensor subdevice. */ | |
609 | fimc_subdev_unregister(fimc); | |
610 | ||
8293ebfc | 611 | return fimc_isp_subdev_init(fimc, i); |
5f3cc447 SN |
612 | } |
613 | ||
614 | static int fimc_cap_g_input(struct file *file, void *priv, | |
615 | unsigned int *i) | |
616 | { | |
617 | struct fimc_ctx *ctx = priv; | |
618 | struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap; | |
619 | ||
620 | *i = cap->input_index; | |
621 | return 0; | |
622 | } | |
623 | ||
624 | static int fimc_cap_streamon(struct file *file, void *priv, | |
2dab38e2 | 625 | enum v4l2_buf_type type) |
5f3cc447 | 626 | { |
5f3cc447 SN |
627 | struct fimc_ctx *ctx = priv; |
628 | struct fimc_dev *fimc = ctx->fimc_dev; | |
5f3cc447 SN |
629 | |
630 | if (fimc_capture_active(fimc) || !fimc->vid_cap.sd) | |
8293ebfc | 631 | return -EBUSY; |
5f3cc447 SN |
632 | |
633 | if (!(ctx->state & FIMC_DST_FMT)) { | |
634 | v4l2_err(&fimc->vid_cap.v4l2_dev, "Format is not set\n"); | |
8293ebfc | 635 | return -EINVAL; |
5f3cc447 SN |
636 | } |
637 | ||
8293ebfc | 638 | return vb2_streamon(&fimc->vid_cap.vbq, type); |
5f3cc447 SN |
639 | } |
640 | ||
641 | static int fimc_cap_streamoff(struct file *file, void *priv, | |
8293ebfc | 642 | enum v4l2_buf_type type) |
5f3cc447 SN |
643 | { |
644 | struct fimc_ctx *ctx = priv; | |
645 | struct fimc_dev *fimc = ctx->fimc_dev; | |
5f3cc447 | 646 | |
8293ebfc | 647 | return vb2_streamoff(&fimc->vid_cap.vbq, type); |
5f3cc447 SN |
648 | } |
649 | ||
650 | static int fimc_cap_reqbufs(struct file *file, void *priv, | |
ef7af59b | 651 | struct v4l2_requestbuffers *reqbufs) |
5f3cc447 SN |
652 | { |
653 | struct fimc_ctx *ctx = priv; | |
8293ebfc | 654 | struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap; |
5f3cc447 SN |
655 | int ret; |
656 | ||
5f3cc447 | 657 | |
2dab38e2 | 658 | ret = vb2_reqbufs(&cap->vbq, reqbufs); |
5f3cc447 SN |
659 | if (!ret) |
660 | cap->reqbufs_count = reqbufs->count; | |
661 | ||
5f3cc447 SN |
662 | return ret; |
663 | } | |
664 | ||
665 | static int fimc_cap_querybuf(struct file *file, void *priv, | |
666 | struct v4l2_buffer *buf) | |
667 | { | |
668 | struct fimc_ctx *ctx = priv; | |
669 | struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap; | |
670 | ||
2dab38e2 | 671 | return vb2_querybuf(&cap->vbq, buf); |
5f3cc447 SN |
672 | } |
673 | ||
674 | static int fimc_cap_qbuf(struct file *file, void *priv, | |
675 | struct v4l2_buffer *buf) | |
676 | { | |
677 | struct fimc_ctx *ctx = priv; | |
8293ebfc SN |
678 | struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap; |
679 | return vb2_qbuf(&cap->vbq, buf); | |
5f3cc447 SN |
680 | } |
681 | ||
682 | static int fimc_cap_dqbuf(struct file *file, void *priv, | |
683 | struct v4l2_buffer *buf) | |
684 | { | |
685 | struct fimc_ctx *ctx = priv; | |
8293ebfc | 686 | return vb2_dqbuf(&ctx->fimc_dev->vid_cap.vbq, buf, |
5f3cc447 | 687 | file->f_flags & O_NONBLOCK); |
5f3cc447 SN |
688 | } |
689 | ||
690 | static int fimc_cap_s_ctrl(struct file *file, void *priv, | |
691 | struct v4l2_control *ctrl) | |
692 | { | |
693 | struct fimc_ctx *ctx = priv; | |
694 | int ret = -EINVAL; | |
695 | ||
5f3cc447 SN |
696 | /* Allow any controls but 90/270 rotation while streaming */ |
697 | if (!fimc_capture_active(ctx->fimc_dev) || | |
698 | ctrl->id != V4L2_CID_ROTATE || | |
699 | (ctrl->value != 90 && ctrl->value != 270)) { | |
700 | ret = check_ctrl_val(ctx, ctrl); | |
701 | if (!ret) { | |
702 | ret = fimc_s_ctrl(ctx, ctrl); | |
703 | if (!ret) | |
704 | ctx->state |= FIMC_PARAMS; | |
705 | } | |
706 | } | |
707 | if (ret == -EINVAL) | |
708 | ret = v4l2_subdev_call(ctx->fimc_dev->vid_cap.sd, | |
709 | core, s_ctrl, ctrl); | |
5f3cc447 SN |
710 | return ret; |
711 | } | |
712 | ||
e004e02f SN |
713 | static int fimc_cap_cropcap(struct file *file, void *fh, |
714 | struct v4l2_cropcap *cr) | |
715 | { | |
716 | struct fimc_frame *f; | |
717 | struct fimc_ctx *ctx = fh; | |
e004e02f | 718 | |
ef7af59b | 719 | if (cr->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) |
e004e02f SN |
720 | return -EINVAL; |
721 | ||
e004e02f | 722 | f = &ctx->s_frame; |
ef7af59b | 723 | |
e004e02f SN |
724 | cr->bounds.left = 0; |
725 | cr->bounds.top = 0; | |
726 | cr->bounds.width = f->o_width; | |
727 | cr->bounds.height = f->o_height; | |
728 | cr->defrect = cr->bounds; | |
729 | ||
e004e02f SN |
730 | return 0; |
731 | } | |
732 | ||
733 | static int fimc_cap_g_crop(struct file *file, void *fh, struct v4l2_crop *cr) | |
734 | { | |
735 | struct fimc_frame *f; | |
736 | struct fimc_ctx *ctx = file->private_data; | |
e004e02f SN |
737 | |
738 | f = &ctx->s_frame; | |
8293ebfc | 739 | |
e004e02f SN |
740 | cr->c.left = f->offs_h; |
741 | cr->c.top = f->offs_v; | |
742 | cr->c.width = f->width; | |
743 | cr->c.height = f->height; | |
744 | ||
e004e02f SN |
745 | return 0; |
746 | } | |
747 | ||
5f3cc447 SN |
748 | static int fimc_cap_s_crop(struct file *file, void *fh, |
749 | struct v4l2_crop *cr) | |
750 | { | |
751 | struct fimc_frame *f; | |
752 | struct fimc_ctx *ctx = file->private_data; | |
753 | struct fimc_dev *fimc = ctx->fimc_dev; | |
754 | int ret = -EINVAL; | |
755 | ||
756 | if (fimc_capture_active(fimc)) | |
757 | return -EBUSY; | |
758 | ||
759 | ret = fimc_try_crop(ctx, cr); | |
760 | if (ret) | |
761 | return ret; | |
762 | ||
5f3cc447 SN |
763 | if (!(ctx->state & FIMC_DST_FMT)) { |
764 | v4l2_err(&fimc->vid_cap.v4l2_dev, | |
765 | "Capture color format not set\n"); | |
8293ebfc | 766 | return -EINVAL; /* TODO: make sure this is the right value */ |
5f3cc447 SN |
767 | } |
768 | ||
769 | f = &ctx->s_frame; | |
770 | /* Check for the pixel scaling ratio when cropping input image. */ | |
771 | ret = fimc_check_scaler_ratio(&cr->c, &ctx->d_frame); | |
772 | if (ret) { | |
773 | v4l2_err(&fimc->vid_cap.v4l2_dev, "Out of the scaler range"); | |
8293ebfc | 774 | return ret; |
5f3cc447 SN |
775 | } |
776 | ||
8293ebfc SN |
777 | f->offs_h = cr->c.left; |
778 | f->offs_v = cr->c.top; | |
779 | f->width = cr->c.width; | |
780 | f->height = cr->c.height; | |
781 | ||
782 | return 0; | |
5f3cc447 SN |
783 | } |
784 | ||
785 | ||
786 | static const struct v4l2_ioctl_ops fimc_capture_ioctl_ops = { | |
787 | .vidioc_querycap = fimc_vidioc_querycap_capture, | |
788 | ||
ef7af59b SN |
789 | .vidioc_enum_fmt_vid_cap_mplane = fimc_vidioc_enum_fmt_mplane, |
790 | .vidioc_try_fmt_vid_cap_mplane = fimc_vidioc_try_fmt_mplane, | |
791 | .vidioc_s_fmt_vid_cap_mplane = fimc_cap_s_fmt_mplane, | |
792 | .vidioc_g_fmt_vid_cap_mplane = fimc_vidioc_g_fmt_mplane, | |
5f3cc447 SN |
793 | |
794 | .vidioc_reqbufs = fimc_cap_reqbufs, | |
795 | .vidioc_querybuf = fimc_cap_querybuf, | |
796 | ||
797 | .vidioc_qbuf = fimc_cap_qbuf, | |
798 | .vidioc_dqbuf = fimc_cap_dqbuf, | |
799 | ||
800 | .vidioc_streamon = fimc_cap_streamon, | |
801 | .vidioc_streamoff = fimc_cap_streamoff, | |
802 | ||
803 | .vidioc_queryctrl = fimc_vidioc_queryctrl, | |
804 | .vidioc_g_ctrl = fimc_vidioc_g_ctrl, | |
805 | .vidioc_s_ctrl = fimc_cap_s_ctrl, | |
806 | ||
e004e02f | 807 | .vidioc_g_crop = fimc_cap_g_crop, |
5f3cc447 | 808 | .vidioc_s_crop = fimc_cap_s_crop, |
e004e02f | 809 | .vidioc_cropcap = fimc_cap_cropcap, |
5f3cc447 SN |
810 | |
811 | .vidioc_enum_input = fimc_cap_enum_input, | |
812 | .vidioc_s_input = fimc_cap_s_input, | |
813 | .vidioc_g_input = fimc_cap_g_input, | |
814 | }; | |
815 | ||
ef7af59b | 816 | /* fimc->lock must be already initialized */ |
5f3cc447 SN |
817 | int fimc_register_capture_device(struct fimc_dev *fimc) |
818 | { | |
819 | struct v4l2_device *v4l2_dev = &fimc->vid_cap.v4l2_dev; | |
820 | struct video_device *vfd; | |
821 | struct fimc_vid_cap *vid_cap; | |
822 | struct fimc_ctx *ctx; | |
823 | struct v4l2_format f; | |
ef7af59b | 824 | struct fimc_frame *fr; |
2dab38e2 | 825 | struct vb2_queue *q; |
5f3cc447 SN |
826 | int ret; |
827 | ||
828 | ctx = kzalloc(sizeof *ctx, GFP_KERNEL); | |
829 | if (!ctx) | |
830 | return -ENOMEM; | |
831 | ||
832 | ctx->fimc_dev = fimc; | |
833 | ctx->in_path = FIMC_CAMERA; | |
834 | ctx->out_path = FIMC_DMA; | |
835 | ctx->state = FIMC_CTX_CAP; | |
836 | ||
ef7af59b SN |
837 | /* Default format of the output frames */ |
838 | f.fmt.pix.pixelformat = V4L2_PIX_FMT_RGB32; | |
839 | fr = &ctx->d_frame; | |
840 | fr->fmt = find_format(&f, FMT_FLAGS_M2M); | |
841 | fr->width = fr->f_width = fr->o_width = 640; | |
842 | fr->height = fr->f_height = fr->o_height = 480; | |
5f3cc447 SN |
843 | |
844 | if (!v4l2_dev->name[0]) | |
845 | snprintf(v4l2_dev->name, sizeof(v4l2_dev->name), | |
846 | "%s.capture", dev_name(&fimc->pdev->dev)); | |
847 | ||
848 | ret = v4l2_device_register(NULL, v4l2_dev); | |
849 | if (ret) | |
850 | goto err_info; | |
851 | ||
852 | vfd = video_device_alloc(); | |
853 | if (!vfd) { | |
854 | v4l2_err(v4l2_dev, "Failed to allocate video device\n"); | |
855 | goto err_v4l2_reg; | |
856 | } | |
857 | ||
858 | snprintf(vfd->name, sizeof(vfd->name), "%s:cap", | |
859 | dev_name(&fimc->pdev->dev)); | |
860 | ||
861 | vfd->fops = &fimc_capture_fops; | |
862 | vfd->ioctl_ops = &fimc_capture_ioctl_ops; | |
863 | vfd->minor = -1; | |
864 | vfd->release = video_device_release; | |
8293ebfc | 865 | vfd->lock = &fimc->lock; |
5f3cc447 SN |
866 | video_set_drvdata(vfd, fimc); |
867 | ||
868 | vid_cap = &fimc->vid_cap; | |
869 | vid_cap->vfd = vfd; | |
870 | vid_cap->active_buf_cnt = 0; | |
871 | vid_cap->reqbufs_count = 0; | |
872 | vid_cap->refcnt = 0; | |
ef7af59b | 873 | /* Default color format for image sensor */ |
5f3cc447 SN |
874 | vid_cap->fmt.code = V4L2_MBUS_FMT_YUYV8_2X8; |
875 | ||
876 | INIT_LIST_HEAD(&vid_cap->pending_buf_q); | |
877 | INIT_LIST_HEAD(&vid_cap->active_buf_q); | |
878 | spin_lock_init(&ctx->slock); | |
879 | vid_cap->ctx = ctx; | |
880 | ||
2dab38e2 SN |
881 | q = &fimc->vid_cap.vbq; |
882 | memset(q, 0, sizeof(*q)); | |
ef7af59b | 883 | q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; |
2dab38e2 SN |
884 | q->io_modes = VB2_MMAP | VB2_USERPTR; |
885 | q->drv_priv = fimc->vid_cap.ctx; | |
886 | q->ops = &fimc_capture_qops; | |
887 | q->mem_ops = &vb2_dma_contig_memops; | |
888 | q->buf_struct_size = sizeof(struct fimc_vid_buffer); | |
889 | ||
890 | vb2_queue_init(q); | |
5f3cc447 SN |
891 | |
892 | ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1); | |
893 | if (ret) { | |
894 | v4l2_err(v4l2_dev, "Failed to register video device\n"); | |
895 | goto err_vd_reg; | |
896 | } | |
897 | ||
898 | v4l2_info(v4l2_dev, | |
899 | "FIMC capture driver registered as /dev/video%d\n", | |
900 | vfd->num); | |
901 | ||
902 | return 0; | |
903 | ||
904 | err_vd_reg: | |
905 | video_device_release(vfd); | |
906 | err_v4l2_reg: | |
907 | v4l2_device_unregister(v4l2_dev); | |
908 | err_info: | |
909 | dev_err(&fimc->pdev->dev, "failed to install\n"); | |
910 | return ret; | |
911 | } | |
912 | ||
913 | void fimc_unregister_capture_device(struct fimc_dev *fimc) | |
914 | { | |
915 | struct fimc_vid_cap *capture = &fimc->vid_cap; | |
916 | ||
917 | if (capture->vfd) | |
918 | video_unregister_device(capture->vfd); | |
919 | ||
920 | kfree(capture->ctx); | |
921 | } |