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babde1c2 SN |
1 | /* |
2 | * s3c24xx/s3c64xx SoC series Camera Interface (CAMIF) driver | |
3 | * | |
4 | * Copyright (C) 2012 Sylwester Nawrocki <sylvester.nawrocki@gmail.com> | |
5 | * Copyright (C) 2012 Tomasz Figa <tomasz.figa@gmail.com> | |
6 | * | |
7 | * Based on drivers/media/platform/s5p-fimc, | |
8 | * Copyright (C) 2010 - 2012 Samsung Electronics Co., Ltd. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | */ | |
14 | #define pr_fmt(fmt) "%s:%d " fmt, __func__, __LINE__ | |
15 | ||
16 | #include <linux/bug.h> | |
17 | #include <linux/clk.h> | |
18 | #include <linux/device.h> | |
19 | #include <linux/errno.h> | |
20 | #include <linux/i2c.h> | |
21 | #include <linux/interrupt.h> | |
22 | #include <linux/io.h> | |
23 | #include <linux/kernel.h> | |
24 | #include <linux/list.h> | |
25 | #include <linux/module.h> | |
26 | #include <linux/platform_device.h> | |
27 | #include <linux/pm_runtime.h> | |
28 | #include <linux/ratelimit.h> | |
29 | #include <linux/slab.h> | |
30 | #include <linux/types.h> | |
31 | #include <linux/videodev2.h> | |
32 | ||
33 | #include <media/media-device.h> | |
34 | #include <media/v4l2-ctrls.h> | |
35 | #include <media/v4l2-event.h> | |
36 | #include <media/v4l2-ioctl.h> | |
37 | #include <media/videobuf2-core.h> | |
38 | #include <media/videobuf2-dma-contig.h> | |
39 | ||
40 | #include "camif-core.h" | |
41 | #include "camif-regs.h" | |
42 | ||
43 | static int debug; | |
44 | module_param(debug, int, 0644); | |
45 | ||
46 | /* Locking: called with vp->camif->slock spinlock held */ | |
47 | static void camif_cfg_video_path(struct camif_vp *vp) | |
48 | { | |
49 | WARN_ON(s3c_camif_get_scaler_config(vp, &vp->scaler)); | |
50 | camif_hw_set_scaler(vp); | |
51 | camif_hw_set_flip(vp); | |
52 | camif_hw_set_target_format(vp); | |
53 | camif_hw_set_output_dma(vp); | |
54 | } | |
55 | ||
56 | static void camif_prepare_dma_offset(struct camif_vp *vp) | |
57 | { | |
58 | struct camif_frame *f = &vp->out_frame; | |
59 | ||
60 | f->dma_offset.initial = f->rect.top * f->f_width + f->rect.left; | |
61 | f->dma_offset.line = f->f_width - (f->rect.left + f->rect.width); | |
62 | ||
63 | pr_debug("dma_offset: initial: %d, line: %d\n", | |
64 | f->dma_offset.initial, f->dma_offset.line); | |
65 | } | |
66 | ||
67 | /* Locking: called with camif->slock spinlock held */ | |
68 | static int s3c_camif_hw_init(struct camif_dev *camif, struct camif_vp *vp) | |
69 | { | |
70 | const struct s3c_camif_variant *variant = camif->variant; | |
71 | ||
72 | if (camif->sensor.sd == NULL || vp->out_fmt == NULL) | |
73 | return -EINVAL; | |
74 | ||
75 | if (variant->ip_revision == S3C244X_CAMIF_IP_REV) | |
76 | camif_hw_clear_fifo_overflow(vp); | |
77 | camif_hw_set_camera_bus(camif); | |
78 | camif_hw_set_source_format(camif); | |
79 | camif_hw_set_camera_crop(camif); | |
80 | camif_hw_set_test_pattern(camif, camif->test_pattern); | |
81 | if (variant->has_img_effect) | |
82 | camif_hw_set_effect(camif, camif->colorfx, | |
83 | camif->colorfx_cb, camif->colorfx_cr); | |
84 | if (variant->ip_revision == S3C6410_CAMIF_IP_REV) | |
85 | camif_hw_set_input_path(vp); | |
86 | camif_cfg_video_path(vp); | |
87 | vp->state &= ~ST_VP_CONFIG; | |
88 | ||
89 | return 0; | |
90 | } | |
91 | ||
92 | /* | |
93 | * Initialize the video path, only up from the scaler stage. The camera | |
94 | * input interface set up is skipped. This is useful to enable one of the | |
95 | * video paths when the other is already running. | |
96 | * Locking: called with camif->slock spinlock held. | |
97 | */ | |
98 | static int s3c_camif_hw_vp_init(struct camif_dev *camif, struct camif_vp *vp) | |
99 | { | |
100 | unsigned int ip_rev = camif->variant->ip_revision; | |
101 | ||
102 | if (vp->out_fmt == NULL) | |
103 | return -EINVAL; | |
104 | ||
105 | camif_prepare_dma_offset(vp); | |
106 | if (ip_rev == S3C244X_CAMIF_IP_REV) | |
107 | camif_hw_clear_fifo_overflow(vp); | |
108 | camif_cfg_video_path(vp); | |
109 | vp->state &= ~ST_VP_CONFIG; | |
110 | return 0; | |
111 | } | |
112 | ||
113 | static int sensor_set_power(struct camif_dev *camif, int on) | |
114 | { | |
115 | struct cam_sensor *sensor = &camif->sensor; | |
116 | int err = 0; | |
117 | ||
7e0d4e92 | 118 | if (camif->sensor.power_count == !on) |
babde1c2 SN |
119 | err = v4l2_subdev_call(sensor->sd, core, s_power, on); |
120 | if (!err) | |
121 | sensor->power_count += on ? 1 : -1; | |
122 | ||
123 | pr_debug("on: %d, power_count: %d, err: %d\n", | |
124 | on, sensor->power_count, err); | |
125 | ||
126 | return err; | |
127 | } | |
128 | ||
129 | static int sensor_set_streaming(struct camif_dev *camif, int on) | |
130 | { | |
131 | struct cam_sensor *sensor = &camif->sensor; | |
132 | int err = 0; | |
133 | ||
7e0d4e92 | 134 | if (camif->sensor.stream_count == !on) |
babde1c2 SN |
135 | err = v4l2_subdev_call(sensor->sd, video, s_stream, on); |
136 | if (!err) | |
137 | sensor->stream_count += on ? 1 : -1; | |
138 | ||
139 | pr_debug("on: %d, stream_count: %d, err: %d\n", | |
140 | on, sensor->stream_count, err); | |
141 | ||
142 | return err; | |
143 | } | |
144 | ||
145 | /* | |
146 | * Reinitialize the driver so it is ready to start streaming again. | |
147 | * Return any buffers to vb2, perform CAMIF software reset and | |
148 | * turn off streaming at the data pipeline (sensor) if required. | |
149 | */ | |
150 | static int camif_reinitialize(struct camif_vp *vp) | |
151 | { | |
152 | struct camif_dev *camif = vp->camif; | |
153 | struct camif_buffer *buf; | |
154 | unsigned long flags; | |
155 | bool streaming; | |
156 | ||
157 | spin_lock_irqsave(&camif->slock, flags); | |
158 | streaming = vp->state & ST_VP_SENSOR_STREAMING; | |
159 | ||
160 | vp->state &= ~(ST_VP_PENDING | ST_VP_RUNNING | ST_VP_OFF | | |
161 | ST_VP_ABORTING | ST_VP_STREAMING | | |
162 | ST_VP_SENSOR_STREAMING | ST_VP_LASTIRQ); | |
163 | ||
164 | /* Release unused buffers */ | |
165 | while (!list_empty(&vp->pending_buf_q)) { | |
166 | buf = camif_pending_queue_pop(vp); | |
167 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); | |
168 | } | |
169 | ||
170 | while (!list_empty(&vp->active_buf_q)) { | |
171 | buf = camif_active_queue_pop(vp); | |
172 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); | |
173 | } | |
174 | ||
175 | spin_unlock_irqrestore(&camif->slock, flags); | |
176 | ||
177 | if (!streaming) | |
178 | return 0; | |
179 | ||
180 | return sensor_set_streaming(camif, 0); | |
181 | } | |
182 | ||
183 | static bool s3c_vp_active(struct camif_vp *vp) | |
184 | { | |
185 | struct camif_dev *camif = vp->camif; | |
186 | unsigned long flags; | |
187 | bool ret; | |
188 | ||
189 | spin_lock_irqsave(&camif->slock, flags); | |
190 | ret = (vp->state & ST_VP_RUNNING) || (vp->state & ST_VP_PENDING); | |
191 | spin_unlock_irqrestore(&camif->slock, flags); | |
192 | ||
193 | return ret; | |
194 | } | |
195 | ||
196 | static bool camif_is_streaming(struct camif_dev *camif) | |
197 | { | |
198 | unsigned long flags; | |
199 | bool status; | |
200 | ||
201 | spin_lock_irqsave(&camif->slock, flags); | |
202 | status = camif->stream_count > 0; | |
203 | spin_unlock_irqrestore(&camif->slock, flags); | |
204 | ||
205 | return status; | |
206 | } | |
207 | ||
208 | static int camif_stop_capture(struct camif_vp *vp) | |
209 | { | |
210 | struct camif_dev *camif = vp->camif; | |
211 | unsigned long flags; | |
212 | int ret; | |
213 | ||
214 | if (!s3c_vp_active(vp)) | |
215 | return 0; | |
216 | ||
217 | spin_lock_irqsave(&camif->slock, flags); | |
218 | vp->state &= ~(ST_VP_OFF | ST_VP_LASTIRQ); | |
219 | vp->state |= ST_VP_ABORTING; | |
220 | spin_unlock_irqrestore(&camif->slock, flags); | |
221 | ||
222 | ret = wait_event_timeout(vp->irq_queue, | |
223 | !(vp->state & ST_VP_ABORTING), | |
224 | msecs_to_jiffies(CAMIF_STOP_TIMEOUT)); | |
225 | ||
226 | spin_lock_irqsave(&camif->slock, flags); | |
227 | ||
228 | if (ret == 0 && !(vp->state & ST_VP_OFF)) { | |
229 | /* Timed out, forcibly stop capture */ | |
230 | vp->state &= ~(ST_VP_OFF | ST_VP_ABORTING | | |
231 | ST_VP_LASTIRQ); | |
232 | ||
233 | camif_hw_disable_capture(vp); | |
234 | camif_hw_enable_scaler(vp, false); | |
235 | } | |
236 | ||
237 | spin_unlock_irqrestore(&camif->slock, flags); | |
238 | ||
239 | return camif_reinitialize(vp); | |
240 | } | |
241 | ||
242 | static int camif_prepare_addr(struct camif_vp *vp, struct vb2_buffer *vb, | |
243 | struct camif_addr *paddr) | |
244 | { | |
245 | struct camif_frame *frame = &vp->out_frame; | |
246 | u32 pix_size; | |
247 | ||
248 | if (vb == NULL || frame == NULL) | |
249 | return -EINVAL; | |
250 | ||
251 | pix_size = frame->rect.width * frame->rect.height; | |
252 | ||
253 | pr_debug("colplanes: %d, pix_size: %u\n", | |
254 | vp->out_fmt->colplanes, pix_size); | |
255 | ||
256 | paddr->y = vb2_dma_contig_plane_dma_addr(vb, 0); | |
257 | ||
258 | switch (vp->out_fmt->colplanes) { | |
259 | case 1: | |
260 | paddr->cb = 0; | |
261 | paddr->cr = 0; | |
262 | break; | |
263 | case 2: | |
264 | /* decompose Y into Y/Cb */ | |
265 | paddr->cb = (u32)(paddr->y + pix_size); | |
266 | paddr->cr = 0; | |
267 | break; | |
268 | case 3: | |
269 | paddr->cb = (u32)(paddr->y + pix_size); | |
270 | /* decompose Y into Y/Cb/Cr */ | |
271 | if (vp->out_fmt->color == IMG_FMT_YCBCR422P) | |
272 | paddr->cr = (u32)(paddr->cb + (pix_size >> 1)); | |
273 | else /* 420 */ | |
274 | paddr->cr = (u32)(paddr->cb + (pix_size >> 2)); | |
275 | ||
276 | if (vp->out_fmt->color == IMG_FMT_YCRCB420) | |
277 | swap(paddr->cb, paddr->cr); | |
278 | break; | |
279 | default: | |
280 | return -EINVAL; | |
281 | } | |
282 | ||
c0a566f3 MCC |
283 | pr_debug("DMA address: y: %pad cb: %pad cr: %pad\n", |
284 | &paddr->y, &paddr->cb, &paddr->cr); | |
babde1c2 SN |
285 | |
286 | return 0; | |
287 | } | |
288 | ||
289 | irqreturn_t s3c_camif_irq_handler(int irq, void *priv) | |
290 | { | |
291 | struct camif_vp *vp = priv; | |
292 | struct camif_dev *camif = vp->camif; | |
293 | unsigned int ip_rev = camif->variant->ip_revision; | |
294 | unsigned int status; | |
295 | ||
296 | spin_lock(&camif->slock); | |
297 | ||
298 | if (ip_rev == S3C6410_CAMIF_IP_REV) | |
299 | camif_hw_clear_pending_irq(vp); | |
300 | ||
301 | status = camif_hw_get_status(vp); | |
302 | ||
303 | if (ip_rev == S3C244X_CAMIF_IP_REV && (status & CISTATUS_OVF_MASK)) { | |
304 | camif_hw_clear_fifo_overflow(vp); | |
305 | goto unlock; | |
306 | } | |
307 | ||
308 | if (vp->state & ST_VP_ABORTING) { | |
309 | if (vp->state & ST_VP_OFF) { | |
310 | /* Last IRQ */ | |
311 | vp->state &= ~(ST_VP_OFF | ST_VP_ABORTING | | |
312 | ST_VP_LASTIRQ); | |
313 | wake_up(&vp->irq_queue); | |
314 | goto unlock; | |
315 | } else if (vp->state & ST_VP_LASTIRQ) { | |
316 | camif_hw_disable_capture(vp); | |
317 | camif_hw_enable_scaler(vp, false); | |
318 | camif_hw_set_lastirq(vp, false); | |
319 | vp->state |= ST_VP_OFF; | |
320 | } else { | |
321 | /* Disable capture, enable last IRQ */ | |
322 | camif_hw_set_lastirq(vp, true); | |
323 | vp->state |= ST_VP_LASTIRQ; | |
324 | } | |
325 | } | |
326 | ||
327 | if (!list_empty(&vp->pending_buf_q) && (vp->state & ST_VP_RUNNING) && | |
328 | !list_empty(&vp->active_buf_q)) { | |
329 | unsigned int index; | |
330 | struct camif_buffer *vbuf; | |
331 | struct timeval *tv; | |
332 | struct timespec ts; | |
333 | /* | |
334 | * Get previous DMA write buffer index: | |
335 | * 0 => DMA buffer 0, 2; | |
336 | * 1 => DMA buffer 1, 3. | |
337 | */ | |
338 | index = (CISTATUS_FRAMECNT(status) + 2) & 1; | |
339 | ||
340 | ktime_get_ts(&ts); | |
341 | vbuf = camif_active_queue_peek(vp, index); | |
342 | ||
343 | if (!WARN_ON(vbuf == NULL)) { | |
344 | /* Dequeue a filled buffer */ | |
345 | tv = &vbuf->vb.v4l2_buf.timestamp; | |
346 | tv->tv_sec = ts.tv_sec; | |
347 | tv->tv_usec = ts.tv_nsec / NSEC_PER_USEC; | |
348 | vbuf->vb.v4l2_buf.sequence = vp->frame_sequence++; | |
349 | vb2_buffer_done(&vbuf->vb, VB2_BUF_STATE_DONE); | |
350 | ||
351 | /* Set up an empty buffer at the DMA engine */ | |
352 | vbuf = camif_pending_queue_pop(vp); | |
353 | vbuf->index = index; | |
354 | camif_hw_set_output_addr(vp, &vbuf->paddr, index); | |
355 | camif_hw_set_output_addr(vp, &vbuf->paddr, index + 2); | |
356 | ||
357 | /* Scheduled in H/W, add to the queue */ | |
358 | camif_active_queue_add(vp, vbuf); | |
359 | } | |
360 | } else if (!(vp->state & ST_VP_ABORTING) && | |
361 | (vp->state & ST_VP_PENDING)) { | |
362 | vp->state |= ST_VP_RUNNING; | |
363 | } | |
364 | ||
365 | if (vp->state & ST_VP_CONFIG) { | |
366 | camif_prepare_dma_offset(vp); | |
367 | camif_hw_set_camera_crop(camif); | |
368 | camif_hw_set_scaler(vp); | |
369 | camif_hw_set_flip(vp); | |
370 | camif_hw_set_test_pattern(camif, camif->test_pattern); | |
371 | if (camif->variant->has_img_effect) | |
372 | camif_hw_set_effect(camif, camif->colorfx, | |
373 | camif->colorfx_cb, camif->colorfx_cr); | |
374 | vp->state &= ~ST_VP_CONFIG; | |
375 | } | |
376 | unlock: | |
377 | spin_unlock(&camif->slock); | |
378 | return IRQ_HANDLED; | |
379 | } | |
380 | ||
381 | static int start_streaming(struct vb2_queue *vq, unsigned int count) | |
382 | { | |
383 | struct camif_vp *vp = vb2_get_drv_priv(vq); | |
384 | struct camif_dev *camif = vp->camif; | |
385 | unsigned long flags; | |
386 | int ret; | |
387 | ||
388 | /* | |
389 | * We assume the codec capture path is always activated | |
390 | * first, before the preview path starts streaming. | |
391 | * This is required to avoid internal FIFO overflow and | |
392 | * a need for CAMIF software reset. | |
393 | */ | |
394 | spin_lock_irqsave(&camif->slock, flags); | |
395 | ||
396 | if (camif->stream_count == 0) { | |
397 | camif_hw_reset(camif); | |
398 | ret = s3c_camif_hw_init(camif, vp); | |
399 | } else { | |
400 | ret = s3c_camif_hw_vp_init(camif, vp); | |
401 | } | |
402 | spin_unlock_irqrestore(&camif->slock, flags); | |
403 | ||
404 | if (ret < 0) { | |
405 | camif_reinitialize(vp); | |
406 | return ret; | |
407 | } | |
408 | ||
409 | spin_lock_irqsave(&camif->slock, flags); | |
410 | vp->frame_sequence = 0; | |
411 | vp->state |= ST_VP_PENDING; | |
412 | ||
413 | if (!list_empty(&vp->pending_buf_q) && | |
414 | (!(vp->state & ST_VP_STREAMING) || | |
415 | !(vp->state & ST_VP_SENSOR_STREAMING))) { | |
416 | ||
417 | camif_hw_enable_scaler(vp, vp->scaler.enable); | |
418 | camif_hw_enable_capture(vp); | |
419 | vp->state |= ST_VP_STREAMING; | |
420 | ||
421 | if (!(vp->state & ST_VP_SENSOR_STREAMING)) { | |
422 | vp->state |= ST_VP_SENSOR_STREAMING; | |
423 | spin_unlock_irqrestore(&camif->slock, flags); | |
424 | ret = sensor_set_streaming(camif, 1); | |
425 | if (ret) | |
426 | v4l2_err(&vp->vdev, "Sensor s_stream failed\n"); | |
427 | if (debug) | |
428 | camif_hw_dump_regs(camif, __func__); | |
429 | ||
430 | return ret; | |
431 | } | |
432 | } | |
433 | ||
434 | spin_unlock_irqrestore(&camif->slock, flags); | |
435 | return 0; | |
436 | } | |
437 | ||
e37559b2 | 438 | static void stop_streaming(struct vb2_queue *vq) |
babde1c2 SN |
439 | { |
440 | struct camif_vp *vp = vb2_get_drv_priv(vq); | |
e37559b2 | 441 | camif_stop_capture(vp); |
babde1c2 SN |
442 | } |
443 | ||
444 | static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *pfmt, | |
445 | unsigned int *num_buffers, unsigned int *num_planes, | |
446 | unsigned int sizes[], void *allocators[]) | |
447 | { | |
448 | const struct v4l2_pix_format *pix = NULL; | |
449 | struct camif_vp *vp = vb2_get_drv_priv(vq); | |
450 | struct camif_dev *camif = vp->camif; | |
451 | struct camif_frame *frame = &vp->out_frame; | |
452 | const struct camif_fmt *fmt = vp->out_fmt; | |
453 | unsigned int size; | |
454 | ||
455 | if (pfmt) { | |
456 | pix = &pfmt->fmt.pix; | |
457 | fmt = s3c_camif_find_format(vp, &pix->pixelformat, -1); | |
458 | size = (pix->width * pix->height * fmt->depth) / 8; | |
459 | } else { | |
460 | size = (frame->f_width * frame->f_height * fmt->depth) / 8; | |
461 | } | |
462 | ||
463 | if (fmt == NULL) | |
464 | return -EINVAL; | |
465 | *num_planes = 1; | |
466 | ||
467 | if (pix) | |
468 | sizes[0] = max(size, pix->sizeimage); | |
469 | else | |
470 | sizes[0] = size; | |
471 | allocators[0] = camif->alloc_ctx; | |
472 | ||
473 | pr_debug("size: %u\n", sizes[0]); | |
474 | return 0; | |
475 | } | |
476 | ||
477 | static int buffer_prepare(struct vb2_buffer *vb) | |
478 | { | |
479 | struct camif_vp *vp = vb2_get_drv_priv(vb->vb2_queue); | |
480 | ||
481 | if (vp->out_fmt == NULL) | |
482 | return -EINVAL; | |
483 | ||
484 | if (vb2_plane_size(vb, 0) < vp->payload) { | |
485 | v4l2_err(&vp->vdev, "buffer too small: %lu, required: %u\n", | |
486 | vb2_plane_size(vb, 0), vp->payload); | |
487 | return -EINVAL; | |
488 | } | |
489 | vb2_set_plane_payload(vb, 0, vp->payload); | |
490 | ||
491 | return 0; | |
492 | } | |
493 | ||
494 | static void buffer_queue(struct vb2_buffer *vb) | |
495 | { | |
496 | struct camif_buffer *buf = container_of(vb, struct camif_buffer, vb); | |
497 | struct camif_vp *vp = vb2_get_drv_priv(vb->vb2_queue); | |
498 | struct camif_dev *camif = vp->camif; | |
499 | unsigned long flags; | |
500 | ||
501 | spin_lock_irqsave(&camif->slock, flags); | |
502 | WARN_ON(camif_prepare_addr(vp, &buf->vb, &buf->paddr)); | |
503 | ||
504 | if (!(vp->state & ST_VP_STREAMING) && vp->active_buffers < 2) { | |
505 | /* Schedule an empty buffer in H/W */ | |
506 | buf->index = vp->buf_index; | |
507 | ||
508 | camif_hw_set_output_addr(vp, &buf->paddr, buf->index); | |
509 | camif_hw_set_output_addr(vp, &buf->paddr, buf->index + 2); | |
510 | ||
511 | camif_active_queue_add(vp, buf); | |
512 | vp->buf_index = !vp->buf_index; | |
513 | } else { | |
514 | camif_pending_queue_add(vp, buf); | |
515 | } | |
516 | ||
517 | if (vb2_is_streaming(&vp->vb_queue) && !list_empty(&vp->pending_buf_q) | |
518 | && !(vp->state & ST_VP_STREAMING)) { | |
519 | ||
520 | vp->state |= ST_VP_STREAMING; | |
521 | camif_hw_enable_scaler(vp, vp->scaler.enable); | |
522 | camif_hw_enable_capture(vp); | |
523 | spin_unlock_irqrestore(&camif->slock, flags); | |
524 | ||
525 | if (!(vp->state & ST_VP_SENSOR_STREAMING)) { | |
526 | if (sensor_set_streaming(camif, 1) == 0) | |
527 | vp->state |= ST_VP_SENSOR_STREAMING; | |
528 | else | |
529 | v4l2_err(&vp->vdev, "Sensor s_stream failed\n"); | |
530 | ||
531 | if (debug) | |
532 | camif_hw_dump_regs(camif, __func__); | |
533 | } | |
534 | return; | |
535 | } | |
536 | spin_unlock_irqrestore(&camif->slock, flags); | |
537 | } | |
538 | ||
babde1c2 SN |
539 | static const struct vb2_ops s3c_camif_qops = { |
540 | .queue_setup = queue_setup, | |
541 | .buf_prepare = buffer_prepare, | |
542 | .buf_queue = buffer_queue, | |
2914e726 PL |
543 | .wait_prepare = vb2_ops_wait_prepare, |
544 | .wait_finish = vb2_ops_wait_finish, | |
babde1c2 SN |
545 | .start_streaming = start_streaming, |
546 | .stop_streaming = stop_streaming, | |
547 | }; | |
548 | ||
549 | static int s3c_camif_open(struct file *file) | |
550 | { | |
551 | struct camif_vp *vp = video_drvdata(file); | |
552 | struct camif_dev *camif = vp->camif; | |
553 | int ret; | |
554 | ||
555 | pr_debug("[vp%d] state: %#x, owner: %p, pid: %d\n", vp->id, | |
556 | vp->state, vp->owner, task_pid_nr(current)); | |
557 | ||
558 | if (mutex_lock_interruptible(&camif->lock)) | |
559 | return -ERESTARTSYS; | |
560 | ||
561 | ret = v4l2_fh_open(file); | |
562 | if (ret < 0) | |
563 | goto unlock; | |
564 | ||
565 | ret = pm_runtime_get_sync(camif->dev); | |
566 | if (ret < 0) | |
567 | goto err_pm; | |
568 | ||
569 | ret = sensor_set_power(camif, 1); | |
570 | if (!ret) | |
571 | goto unlock; | |
572 | ||
573 | pm_runtime_put(camif->dev); | |
574 | err_pm: | |
575 | v4l2_fh_release(file); | |
576 | unlock: | |
577 | mutex_unlock(&camif->lock); | |
578 | return ret; | |
579 | } | |
580 | ||
581 | static int s3c_camif_close(struct file *file) | |
582 | { | |
583 | struct camif_vp *vp = video_drvdata(file); | |
584 | struct camif_dev *camif = vp->camif; | |
585 | int ret; | |
586 | ||
587 | pr_debug("[vp%d] state: %#x, owner: %p, pid: %d\n", vp->id, | |
588 | vp->state, vp->owner, task_pid_nr(current)); | |
589 | ||
590 | mutex_lock(&camif->lock); | |
591 | ||
592 | if (vp->owner == file->private_data) { | |
593 | camif_stop_capture(vp); | |
594 | vb2_queue_release(&vp->vb_queue); | |
595 | vp->owner = NULL; | |
596 | } | |
597 | ||
598 | sensor_set_power(camif, 0); | |
599 | ||
600 | pm_runtime_put(camif->dev); | |
601 | ret = v4l2_fh_release(file); | |
602 | ||
603 | mutex_unlock(&camif->lock); | |
604 | return ret; | |
605 | } | |
606 | ||
607 | static unsigned int s3c_camif_poll(struct file *file, | |
608 | struct poll_table_struct *wait) | |
609 | { | |
610 | struct camif_vp *vp = video_drvdata(file); | |
611 | struct camif_dev *camif = vp->camif; | |
612 | int ret; | |
613 | ||
614 | mutex_lock(&camif->lock); | |
615 | if (vp->owner && vp->owner != file->private_data) | |
616 | ret = -EBUSY; | |
617 | else | |
618 | ret = vb2_poll(&vp->vb_queue, file, wait); | |
619 | ||
620 | mutex_unlock(&camif->lock); | |
621 | return ret; | |
622 | } | |
623 | ||
624 | static int s3c_camif_mmap(struct file *file, struct vm_area_struct *vma) | |
625 | { | |
626 | struct camif_vp *vp = video_drvdata(file); | |
627 | int ret; | |
628 | ||
629 | if (vp->owner && vp->owner != file->private_data) | |
630 | ret = -EBUSY; | |
631 | else | |
632 | ret = vb2_mmap(&vp->vb_queue, vma); | |
633 | ||
634 | return ret; | |
635 | } | |
636 | ||
637 | static const struct v4l2_file_operations s3c_camif_fops = { | |
638 | .owner = THIS_MODULE, | |
639 | .open = s3c_camif_open, | |
640 | .release = s3c_camif_close, | |
641 | .poll = s3c_camif_poll, | |
642 | .unlocked_ioctl = video_ioctl2, | |
643 | .mmap = s3c_camif_mmap, | |
644 | }; | |
645 | ||
646 | /* | |
647 | * Video node IOCTLs | |
648 | */ | |
649 | ||
650 | static int s3c_camif_vidioc_querycap(struct file *file, void *priv, | |
651 | struct v4l2_capability *cap) | |
652 | { | |
653 | struct camif_vp *vp = video_drvdata(file); | |
654 | ||
655 | strlcpy(cap->driver, S3C_CAMIF_DRIVER_NAME, sizeof(cap->driver)); | |
656 | strlcpy(cap->card, S3C_CAMIF_DRIVER_NAME, sizeof(cap->card)); | |
657 | snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s.%d", | |
658 | dev_name(vp->camif->dev), vp->id); | |
659 | ||
660 | cap->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE; | |
661 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; | |
662 | ||
663 | return 0; | |
664 | } | |
665 | ||
666 | static int s3c_camif_vidioc_enum_input(struct file *file, void *priv, | |
667 | struct v4l2_input *input) | |
668 | { | |
669 | struct camif_vp *vp = video_drvdata(file); | |
670 | struct v4l2_subdev *sensor = vp->camif->sensor.sd; | |
671 | ||
672 | if (input->index || sensor == NULL) | |
673 | return -EINVAL; | |
674 | ||
675 | input->type = V4L2_INPUT_TYPE_CAMERA; | |
676 | strlcpy(input->name, sensor->name, sizeof(input->name)); | |
677 | return 0; | |
678 | } | |
679 | ||
680 | static int s3c_camif_vidioc_s_input(struct file *file, void *priv, | |
681 | unsigned int i) | |
682 | { | |
683 | return i == 0 ? 0 : -EINVAL; | |
684 | } | |
685 | ||
686 | static int s3c_camif_vidioc_g_input(struct file *file, void *priv, | |
687 | unsigned int *i) | |
688 | { | |
689 | *i = 0; | |
690 | return 0; | |
691 | } | |
692 | ||
693 | static int s3c_camif_vidioc_enum_fmt(struct file *file, void *priv, | |
694 | struct v4l2_fmtdesc *f) | |
695 | { | |
696 | struct camif_vp *vp = video_drvdata(file); | |
697 | const struct camif_fmt *fmt; | |
698 | ||
699 | fmt = s3c_camif_find_format(vp, NULL, f->index); | |
700 | if (!fmt) | |
701 | return -EINVAL; | |
702 | ||
703 | strlcpy(f->description, fmt->name, sizeof(f->description)); | |
704 | f->pixelformat = fmt->fourcc; | |
705 | ||
706 | pr_debug("fmt(%d): %s\n", f->index, f->description); | |
707 | return 0; | |
708 | } | |
709 | ||
710 | static int s3c_camif_vidioc_g_fmt(struct file *file, void *priv, | |
711 | struct v4l2_format *f) | |
712 | { | |
713 | struct camif_vp *vp = video_drvdata(file); | |
714 | struct v4l2_pix_format *pix = &f->fmt.pix; | |
715 | struct camif_frame *frame = &vp->out_frame; | |
716 | const struct camif_fmt *fmt = vp->out_fmt; | |
717 | ||
718 | pix->bytesperline = frame->f_width * fmt->ybpp; | |
719 | pix->sizeimage = vp->payload; | |
720 | ||
721 | pix->pixelformat = fmt->fourcc; | |
722 | pix->width = frame->f_width; | |
723 | pix->height = frame->f_height; | |
724 | pix->field = V4L2_FIELD_NONE; | |
725 | pix->colorspace = V4L2_COLORSPACE_JPEG; | |
726 | ||
727 | return 0; | |
728 | } | |
729 | ||
730 | static int __camif_video_try_format(struct camif_vp *vp, | |
731 | struct v4l2_pix_format *pix, | |
732 | const struct camif_fmt **ffmt) | |
733 | { | |
734 | struct camif_dev *camif = vp->camif; | |
735 | struct v4l2_rect *crop = &camif->camif_crop; | |
736 | unsigned int wmin, hmin, sc_hrmax, sc_vrmax; | |
737 | const struct vp_pix_limits *pix_lim; | |
738 | const struct camif_fmt *fmt; | |
739 | ||
740 | fmt = s3c_camif_find_format(vp, &pix->pixelformat, 0); | |
741 | ||
742 | if (WARN_ON(fmt == NULL)) | |
743 | return -EINVAL; | |
744 | ||
745 | if (ffmt) | |
746 | *ffmt = fmt; | |
747 | ||
748 | pix_lim = &camif->variant->vp_pix_limits[vp->id]; | |
749 | ||
750 | pr_debug("fmt: %ux%u, crop: %ux%u, bytesperline: %u\n", | |
751 | pix->width, pix->height, crop->width, crop->height, | |
752 | pix->bytesperline); | |
753 | /* | |
754 | * Calculate minimum width and height according to the configured | |
755 | * camera input interface crop rectangle and the resizer's capabilities. | |
756 | */ | |
757 | sc_hrmax = min(SCALER_MAX_RATIO, 1 << (ffs(crop->width) - 3)); | |
758 | sc_vrmax = min(SCALER_MAX_RATIO, 1 << (ffs(crop->height) - 1)); | |
759 | ||
760 | wmin = max_t(u32, pix_lim->min_out_width, crop->width / sc_hrmax); | |
761 | wmin = round_up(wmin, pix_lim->out_width_align); | |
762 | hmin = max_t(u32, 8, crop->height / sc_vrmax); | |
763 | hmin = round_up(hmin, 8); | |
764 | ||
765 | v4l_bound_align_image(&pix->width, wmin, pix_lim->max_sc_out_width, | |
766 | ffs(pix_lim->out_width_align) - 1, | |
767 | &pix->height, hmin, pix_lim->max_height, 0, 0); | |
768 | ||
769 | pix->bytesperline = pix->width * fmt->ybpp; | |
770 | pix->sizeimage = (pix->width * pix->height * fmt->depth) / 8; | |
771 | pix->pixelformat = fmt->fourcc; | |
772 | pix->colorspace = V4L2_COLORSPACE_JPEG; | |
773 | pix->field = V4L2_FIELD_NONE; | |
774 | ||
775 | pr_debug("%ux%u, wmin: %d, hmin: %d, sc_hrmax: %d, sc_vrmax: %d\n", | |
776 | pix->width, pix->height, wmin, hmin, sc_hrmax, sc_vrmax); | |
777 | ||
778 | return 0; | |
779 | } | |
780 | ||
781 | static int s3c_camif_vidioc_try_fmt(struct file *file, void *priv, | |
782 | struct v4l2_format *f) | |
783 | { | |
784 | struct camif_vp *vp = video_drvdata(file); | |
785 | return __camif_video_try_format(vp, &f->fmt.pix, NULL); | |
786 | } | |
787 | ||
788 | static int s3c_camif_vidioc_s_fmt(struct file *file, void *priv, | |
789 | struct v4l2_format *f) | |
790 | { | |
791 | struct v4l2_pix_format *pix = &f->fmt.pix; | |
792 | struct camif_vp *vp = video_drvdata(file); | |
793 | struct camif_frame *out_frame = &vp->out_frame; | |
794 | const struct camif_fmt *fmt = NULL; | |
795 | int ret; | |
796 | ||
797 | pr_debug("[vp%d]\n", vp->id); | |
798 | ||
799 | if (vb2_is_busy(&vp->vb_queue)) | |
800 | return -EBUSY; | |
801 | ||
802 | ret = __camif_video_try_format(vp, &f->fmt.pix, &fmt); | |
803 | if (ret < 0) | |
804 | return ret; | |
805 | ||
806 | vp->out_fmt = fmt; | |
807 | vp->payload = pix->sizeimage; | |
808 | out_frame->f_width = pix->width; | |
809 | out_frame->f_height = pix->height; | |
810 | ||
811 | /* Reset composition rectangle */ | |
812 | out_frame->rect.width = pix->width; | |
813 | out_frame->rect.height = pix->height; | |
814 | out_frame->rect.left = 0; | |
815 | out_frame->rect.top = 0; | |
816 | ||
817 | if (vp->owner == NULL) | |
818 | vp->owner = priv; | |
819 | ||
820 | pr_debug("%ux%u. payload: %u. fmt: %s. %d %d. sizeimage: %d. bpl: %d\n", | |
821 | out_frame->f_width, out_frame->f_height, vp->payload, fmt->name, | |
822 | pix->width * pix->height * fmt->depth, fmt->depth, | |
823 | pix->sizeimage, pix->bytesperline); | |
824 | ||
825 | return 0; | |
826 | } | |
827 | ||
828 | /* Only check pixel formats at the sensor and the camif subdev pads */ | |
829 | static int camif_pipeline_validate(struct camif_dev *camif) | |
830 | { | |
831 | struct v4l2_subdev_format src_fmt; | |
832 | struct media_pad *pad; | |
833 | int ret; | |
834 | ||
835 | /* Retrieve format at the sensor subdev source pad */ | |
1bddf1b3 | 836 | pad = media_entity_remote_pad(&camif->pads[0]); |
babde1c2 SN |
837 | if (!pad || media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV) |
838 | return -EPIPE; | |
839 | ||
840 | src_fmt.pad = pad->index; | |
841 | src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; | |
842 | ret = v4l2_subdev_call(camif->sensor.sd, pad, get_fmt, NULL, &src_fmt); | |
843 | if (ret < 0 && ret != -ENOIOCTLCMD) | |
844 | return -EPIPE; | |
845 | ||
846 | if (src_fmt.format.width != camif->mbus_fmt.width || | |
847 | src_fmt.format.height != camif->mbus_fmt.height || | |
848 | src_fmt.format.code != camif->mbus_fmt.code) | |
849 | return -EPIPE; | |
850 | ||
851 | return 0; | |
852 | } | |
853 | ||
854 | static int s3c_camif_streamon(struct file *file, void *priv, | |
855 | enum v4l2_buf_type type) | |
856 | { | |
857 | struct camif_vp *vp = video_drvdata(file); | |
858 | struct camif_dev *camif = vp->camif; | |
859 | struct media_entity *sensor = &camif->sensor.sd->entity; | |
860 | int ret; | |
861 | ||
862 | pr_debug("[vp%d]\n", vp->id); | |
863 | ||
864 | if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
865 | return -EINVAL; | |
866 | ||
867 | if (vp->owner && vp->owner != priv) | |
868 | return -EBUSY; | |
869 | ||
870 | if (s3c_vp_active(vp)) | |
871 | return 0; | |
872 | ||
873 | ret = media_entity_pipeline_start(sensor, camif->m_pipeline); | |
874 | if (ret < 0) | |
875 | return ret; | |
876 | ||
877 | ret = camif_pipeline_validate(camif); | |
878 | if (ret < 0) { | |
879 | media_entity_pipeline_stop(sensor); | |
880 | return ret; | |
881 | } | |
882 | ||
883 | return vb2_streamon(&vp->vb_queue, type); | |
884 | } | |
885 | ||
886 | static int s3c_camif_streamoff(struct file *file, void *priv, | |
887 | enum v4l2_buf_type type) | |
888 | { | |
889 | struct camif_vp *vp = video_drvdata(file); | |
890 | struct camif_dev *camif = vp->camif; | |
891 | int ret; | |
892 | ||
893 | pr_debug("[vp%d]\n", vp->id); | |
894 | ||
895 | if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
896 | return -EINVAL; | |
897 | ||
898 | if (vp->owner && vp->owner != priv) | |
899 | return -EBUSY; | |
900 | ||
901 | ret = vb2_streamoff(&vp->vb_queue, type); | |
902 | if (ret == 0) | |
903 | media_entity_pipeline_stop(&camif->sensor.sd->entity); | |
904 | return ret; | |
905 | } | |
906 | ||
907 | static int s3c_camif_reqbufs(struct file *file, void *priv, | |
908 | struct v4l2_requestbuffers *rb) | |
909 | { | |
910 | struct camif_vp *vp = video_drvdata(file); | |
911 | int ret; | |
912 | ||
913 | pr_debug("[vp%d] rb count: %d, owner: %p, priv: %p\n", | |
914 | vp->id, rb->count, vp->owner, priv); | |
915 | ||
916 | if (vp->owner && vp->owner != priv) | |
917 | return -EBUSY; | |
918 | ||
919 | if (rb->count) | |
920 | rb->count = max_t(u32, CAMIF_REQ_BUFS_MIN, rb->count); | |
921 | else | |
922 | vp->owner = NULL; | |
923 | ||
924 | ret = vb2_reqbufs(&vp->vb_queue, rb); | |
69b95a3a SN |
925 | if (ret < 0) |
926 | return ret; | |
927 | ||
928 | if (rb->count && rb->count < CAMIF_REQ_BUFS_MIN) { | |
929 | rb->count = 0; | |
930 | vb2_reqbufs(&vp->vb_queue, rb); | |
931 | ret = -ENOMEM; | |
babde1c2 SN |
932 | } |
933 | ||
69b95a3a SN |
934 | vp->reqbufs_count = rb->count; |
935 | if (vp->owner == NULL && rb->count > 0) | |
936 | vp->owner = priv; | |
937 | ||
babde1c2 SN |
938 | return ret; |
939 | } | |
940 | ||
941 | static int s3c_camif_querybuf(struct file *file, void *priv, | |
942 | struct v4l2_buffer *buf) | |
943 | { | |
944 | struct camif_vp *vp = video_drvdata(file); | |
945 | return vb2_querybuf(&vp->vb_queue, buf); | |
946 | } | |
947 | ||
948 | static int s3c_camif_qbuf(struct file *file, void *priv, | |
949 | struct v4l2_buffer *buf) | |
950 | { | |
951 | struct camif_vp *vp = video_drvdata(file); | |
952 | ||
953 | pr_debug("[vp%d]\n", vp->id); | |
954 | ||
955 | if (vp->owner && vp->owner != priv) | |
956 | return -EBUSY; | |
957 | ||
958 | return vb2_qbuf(&vp->vb_queue, buf); | |
959 | } | |
960 | ||
961 | static int s3c_camif_dqbuf(struct file *file, void *priv, | |
962 | struct v4l2_buffer *buf) | |
963 | { | |
964 | struct camif_vp *vp = video_drvdata(file); | |
965 | ||
966 | pr_debug("[vp%d] sequence: %d\n", vp->id, vp->frame_sequence); | |
967 | ||
968 | if (vp->owner && vp->owner != priv) | |
969 | return -EBUSY; | |
970 | ||
971 | return vb2_dqbuf(&vp->vb_queue, buf, file->f_flags & O_NONBLOCK); | |
972 | } | |
973 | ||
974 | static int s3c_camif_create_bufs(struct file *file, void *priv, | |
975 | struct v4l2_create_buffers *create) | |
976 | { | |
977 | struct camif_vp *vp = video_drvdata(file); | |
978 | int ret; | |
979 | ||
980 | if (vp->owner && vp->owner != priv) | |
981 | return -EBUSY; | |
982 | ||
983 | create->count = max_t(u32, 1, create->count); | |
984 | ret = vb2_create_bufs(&vp->vb_queue, create); | |
985 | ||
986 | if (!ret && vp->owner == NULL) | |
987 | vp->owner = priv; | |
988 | ||
989 | return ret; | |
990 | } | |
991 | ||
992 | static int s3c_camif_prepare_buf(struct file *file, void *priv, | |
993 | struct v4l2_buffer *b) | |
994 | { | |
995 | struct camif_vp *vp = video_drvdata(file); | |
996 | return vb2_prepare_buf(&vp->vb_queue, b); | |
997 | } | |
998 | ||
999 | static int s3c_camif_g_selection(struct file *file, void *priv, | |
1000 | struct v4l2_selection *sel) | |
1001 | { | |
1002 | struct camif_vp *vp = video_drvdata(file); | |
1003 | ||
1004 | if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
1005 | return -EINVAL; | |
1006 | ||
1007 | switch (sel->target) { | |
1008 | case V4L2_SEL_TGT_COMPOSE_BOUNDS: | |
1009 | case V4L2_SEL_TGT_COMPOSE_DEFAULT: | |
1010 | sel->r.left = 0; | |
1011 | sel->r.top = 0; | |
1012 | sel->r.width = vp->out_frame.f_width; | |
1013 | sel->r.height = vp->out_frame.f_height; | |
1014 | return 0; | |
1015 | ||
1016 | case V4L2_SEL_TGT_COMPOSE: | |
1017 | sel->r = vp->out_frame.rect; | |
1018 | return 0; | |
1019 | } | |
1020 | ||
1021 | return -EINVAL; | |
1022 | } | |
1023 | ||
1024 | static void __camif_try_compose(struct camif_dev *camif, struct camif_vp *vp, | |
1025 | struct v4l2_rect *r) | |
1026 | { | |
1027 | /* s3c244x doesn't support composition */ | |
1028 | if (camif->variant->ip_revision == S3C244X_CAMIF_IP_REV) { | |
1029 | *r = vp->out_frame.rect; | |
1030 | return; | |
1031 | } | |
1032 | ||
1033 | /* TODO: s3c64xx */ | |
1034 | } | |
1035 | ||
1036 | static int s3c_camif_s_selection(struct file *file, void *priv, | |
1037 | struct v4l2_selection *sel) | |
1038 | { | |
1039 | struct camif_vp *vp = video_drvdata(file); | |
1040 | struct camif_dev *camif = vp->camif; | |
1041 | struct v4l2_rect rect = sel->r; | |
1042 | unsigned long flags; | |
1043 | ||
1044 | if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1045 | sel->target != V4L2_SEL_TGT_COMPOSE) | |
1046 | return -EINVAL; | |
1047 | ||
1048 | __camif_try_compose(camif, vp, &rect); | |
1049 | ||
1050 | sel->r = rect; | |
1051 | spin_lock_irqsave(&camif->slock, flags); | |
1052 | vp->out_frame.rect = rect; | |
1053 | vp->state |= ST_VP_CONFIG; | |
1054 | spin_unlock_irqrestore(&camif->slock, flags); | |
1055 | ||
1056 | pr_debug("type: %#x, target: %#x, flags: %#x, (%d,%d)/%dx%d\n", | |
1057 | sel->type, sel->target, sel->flags, | |
1058 | sel->r.left, sel->r.top, sel->r.width, sel->r.height); | |
1059 | ||
1060 | return 0; | |
1061 | } | |
1062 | ||
1063 | static const struct v4l2_ioctl_ops s3c_camif_ioctl_ops = { | |
1064 | .vidioc_querycap = s3c_camif_vidioc_querycap, | |
1065 | .vidioc_enum_input = s3c_camif_vidioc_enum_input, | |
1066 | .vidioc_g_input = s3c_camif_vidioc_g_input, | |
1067 | .vidioc_s_input = s3c_camif_vidioc_s_input, | |
1068 | .vidioc_enum_fmt_vid_cap = s3c_camif_vidioc_enum_fmt, | |
1069 | .vidioc_try_fmt_vid_cap = s3c_camif_vidioc_try_fmt, | |
1070 | .vidioc_s_fmt_vid_cap = s3c_camif_vidioc_s_fmt, | |
1071 | .vidioc_g_fmt_vid_cap = s3c_camif_vidioc_g_fmt, | |
1072 | .vidioc_g_selection = s3c_camif_g_selection, | |
1073 | .vidioc_s_selection = s3c_camif_s_selection, | |
1074 | .vidioc_reqbufs = s3c_camif_reqbufs, | |
1075 | .vidioc_querybuf = s3c_camif_querybuf, | |
1076 | .vidioc_prepare_buf = s3c_camif_prepare_buf, | |
1077 | .vidioc_create_bufs = s3c_camif_create_bufs, | |
1078 | .vidioc_qbuf = s3c_camif_qbuf, | |
1079 | .vidioc_dqbuf = s3c_camif_dqbuf, | |
1080 | .vidioc_streamon = s3c_camif_streamon, | |
1081 | .vidioc_streamoff = s3c_camif_streamoff, | |
1082 | .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, | |
1083 | .vidioc_unsubscribe_event = v4l2_event_unsubscribe, | |
1084 | .vidioc_log_status = v4l2_ctrl_log_status, | |
1085 | }; | |
1086 | ||
1087 | /* | |
1088 | * Video node controls | |
1089 | */ | |
1090 | static int s3c_camif_video_s_ctrl(struct v4l2_ctrl *ctrl) | |
1091 | { | |
1092 | struct camif_vp *vp = ctrl->priv; | |
1093 | struct camif_dev *camif = vp->camif; | |
1094 | unsigned long flags; | |
1095 | ||
1096 | pr_debug("[vp%d] ctrl: %s, value: %d\n", vp->id, | |
1097 | ctrl->name, ctrl->val); | |
1098 | ||
1099 | spin_lock_irqsave(&camif->slock, flags); | |
1100 | ||
1101 | switch (ctrl->id) { | |
1102 | case V4L2_CID_HFLIP: | |
1103 | vp->hflip = ctrl->val; | |
1104 | break; | |
1105 | ||
1106 | case V4L2_CID_VFLIP: | |
1107 | vp->vflip = ctrl->val; | |
1108 | break; | |
1109 | } | |
1110 | ||
1111 | vp->state |= ST_VP_CONFIG; | |
1112 | spin_unlock_irqrestore(&camif->slock, flags); | |
1113 | return 0; | |
1114 | } | |
1115 | ||
1116 | /* Codec and preview video node control ops */ | |
1117 | static const struct v4l2_ctrl_ops s3c_camif_video_ctrl_ops = { | |
1118 | .s_ctrl = s3c_camif_video_s_ctrl, | |
1119 | }; | |
1120 | ||
1121 | int s3c_camif_register_video_node(struct camif_dev *camif, int idx) | |
1122 | { | |
1123 | struct camif_vp *vp = &camif->vp[idx]; | |
1124 | struct vb2_queue *q = &vp->vb_queue; | |
1125 | struct video_device *vfd = &vp->vdev; | |
1126 | struct v4l2_ctrl *ctrl; | |
1127 | int ret; | |
1128 | ||
1129 | memset(vfd, 0, sizeof(*vfd)); | |
1130 | snprintf(vfd->name, sizeof(vfd->name), "camif-%s", | |
1131 | vp->id == 0 ? "codec" : "preview"); | |
1132 | ||
1133 | vfd->fops = &s3c_camif_fops; | |
1134 | vfd->ioctl_ops = &s3c_camif_ioctl_ops; | |
1135 | vfd->v4l2_dev = &camif->v4l2_dev; | |
1136 | vfd->minor = -1; | |
1137 | vfd->release = video_device_release_empty; | |
1138 | vfd->lock = &camif->lock; | |
1139 | vp->reqbufs_count = 0; | |
1140 | ||
1141 | INIT_LIST_HEAD(&vp->pending_buf_q); | |
1142 | INIT_LIST_HEAD(&vp->active_buf_q); | |
1143 | ||
1144 | memset(q, 0, sizeof(*q)); | |
1145 | q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1146 | q->io_modes = VB2_MMAP | VB2_USERPTR; | |
1147 | q->ops = &s3c_camif_qops; | |
1148 | q->mem_ops = &vb2_dma_contig_memops; | |
1149 | q->buf_struct_size = sizeof(struct camif_buffer); | |
1150 | q->drv_priv = vp; | |
ade48681 | 1151 | q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
2914e726 | 1152 | q->lock = &vp->camif->lock; |
babde1c2 SN |
1153 | |
1154 | ret = vb2_queue_init(q); | |
1155 | if (ret) | |
1156 | goto err_vd_rel; | |
1157 | ||
1158 | vp->pad.flags = MEDIA_PAD_FL_SINK; | |
1159 | ret = media_entity_init(&vfd->entity, 1, &vp->pad, 0); | |
1160 | if (ret) | |
1161 | goto err_vd_rel; | |
1162 | ||
1163 | video_set_drvdata(vfd, vp); | |
babde1c2 SN |
1164 | |
1165 | v4l2_ctrl_handler_init(&vp->ctrl_handler, 1); | |
1166 | ctrl = v4l2_ctrl_new_std(&vp->ctrl_handler, &s3c_camif_video_ctrl_ops, | |
1167 | V4L2_CID_HFLIP, 0, 1, 1, 0); | |
1168 | if (ctrl) | |
1169 | ctrl->priv = vp; | |
1170 | ctrl = v4l2_ctrl_new_std(&vp->ctrl_handler, &s3c_camif_video_ctrl_ops, | |
1171 | V4L2_CID_VFLIP, 0, 1, 1, 0); | |
1172 | if (ctrl) | |
1173 | ctrl->priv = vp; | |
1174 | ||
1175 | ret = vp->ctrl_handler.error; | |
1176 | if (ret < 0) | |
1177 | goto err_me_cleanup; | |
1178 | ||
1179 | vfd->ctrl_handler = &vp->ctrl_handler; | |
1180 | ||
1181 | ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1); | |
1182 | if (ret) | |
1183 | goto err_ctrlh_free; | |
1184 | ||
1185 | v4l2_info(&camif->v4l2_dev, "registered %s as /dev/%s\n", | |
1186 | vfd->name, video_device_node_name(vfd)); | |
1187 | return 0; | |
1188 | ||
1189 | err_ctrlh_free: | |
1190 | v4l2_ctrl_handler_free(&vp->ctrl_handler); | |
1191 | err_me_cleanup: | |
1192 | media_entity_cleanup(&vfd->entity); | |
1193 | err_vd_rel: | |
1194 | video_device_release(vfd); | |
1195 | return ret; | |
1196 | } | |
1197 | ||
1198 | void s3c_camif_unregister_video_node(struct camif_dev *camif, int idx) | |
1199 | { | |
1200 | struct video_device *vfd = &camif->vp[idx].vdev; | |
1201 | ||
1202 | if (video_is_registered(vfd)) { | |
1203 | video_unregister_device(vfd); | |
1204 | media_entity_cleanup(&vfd->entity); | |
1205 | v4l2_ctrl_handler_free(vfd->ctrl_handler); | |
1206 | } | |
1207 | } | |
1208 | ||
1209 | /* Media bus pixel formats supported at the camif input */ | |
27ffaeb0 BB |
1210 | static const u32 camif_mbus_formats[] = { |
1211 | MEDIA_BUS_FMT_YUYV8_2X8, | |
1212 | MEDIA_BUS_FMT_YVYU8_2X8, | |
1213 | MEDIA_BUS_FMT_UYVY8_2X8, | |
1214 | MEDIA_BUS_FMT_VYUY8_2X8, | |
babde1c2 SN |
1215 | }; |
1216 | ||
1217 | /* | |
1218 | * Camera input interface subdev operations | |
1219 | */ | |
1220 | ||
1221 | static int s3c_camif_subdev_enum_mbus_code(struct v4l2_subdev *sd, | |
f7234138 | 1222 | struct v4l2_subdev_pad_config *cfg, |
babde1c2 SN |
1223 | struct v4l2_subdev_mbus_code_enum *code) |
1224 | { | |
1225 | if (code->index >= ARRAY_SIZE(camif_mbus_formats)) | |
1226 | return -EINVAL; | |
1227 | ||
1228 | code->code = camif_mbus_formats[code->index]; | |
1229 | return 0; | |
1230 | } | |
1231 | ||
1232 | static int s3c_camif_subdev_get_fmt(struct v4l2_subdev *sd, | |
f7234138 | 1233 | struct v4l2_subdev_pad_config *cfg, |
babde1c2 SN |
1234 | struct v4l2_subdev_format *fmt) |
1235 | { | |
1236 | struct camif_dev *camif = v4l2_get_subdevdata(sd); | |
1237 | struct v4l2_mbus_framefmt *mf = &fmt->format; | |
1238 | ||
1239 | if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { | |
f7234138 | 1240 | mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); |
babde1c2 SN |
1241 | fmt->format = *mf; |
1242 | return 0; | |
1243 | } | |
1244 | ||
1245 | mutex_lock(&camif->lock); | |
1246 | ||
1247 | switch (fmt->pad) { | |
1248 | case CAMIF_SD_PAD_SINK: | |
1249 | /* full camera input pixel size */ | |
1250 | *mf = camif->mbus_fmt; | |
1251 | break; | |
1252 | ||
1253 | case CAMIF_SD_PAD_SOURCE_C...CAMIF_SD_PAD_SOURCE_P: | |
1254 | /* crop rectangle at camera interface input */ | |
1255 | mf->width = camif->camif_crop.width; | |
1256 | mf->height = camif->camif_crop.height; | |
1257 | mf->code = camif->mbus_fmt.code; | |
1258 | break; | |
1259 | } | |
1260 | ||
1261 | mutex_unlock(&camif->lock); | |
6c5bba9b | 1262 | mf->field = V4L2_FIELD_NONE; |
babde1c2 SN |
1263 | mf->colorspace = V4L2_COLORSPACE_JPEG; |
1264 | return 0; | |
1265 | } | |
1266 | ||
1267 | static void __camif_subdev_try_format(struct camif_dev *camif, | |
1268 | struct v4l2_mbus_framefmt *mf, int pad) | |
1269 | { | |
1270 | const struct s3c_camif_variant *variant = camif->variant; | |
1271 | const struct vp_pix_limits *pix_lim; | |
1272 | int i = ARRAY_SIZE(camif_mbus_formats); | |
1273 | ||
1274 | /* FIXME: constraints against codec or preview path ? */ | |
1275 | pix_lim = &variant->vp_pix_limits[VP_CODEC]; | |
1276 | ||
1277 | while (i-- >= 0) | |
1278 | if (camif_mbus_formats[i] == mf->code) | |
1279 | break; | |
1280 | ||
1281 | mf->code = camif_mbus_formats[i]; | |
1282 | ||
1283 | if (pad == CAMIF_SD_PAD_SINK) { | |
1284 | v4l_bound_align_image(&mf->width, 8, CAMIF_MAX_PIX_WIDTH, | |
1285 | ffs(pix_lim->out_width_align) - 1, | |
1286 | &mf->height, 8, CAMIF_MAX_PIX_HEIGHT, 0, | |
1287 | 0); | |
1288 | } else { | |
1289 | struct v4l2_rect *crop = &camif->camif_crop; | |
1290 | v4l_bound_align_image(&mf->width, 8, crop->width, | |
1291 | ffs(pix_lim->out_width_align) - 1, | |
1292 | &mf->height, 8, crop->height, | |
1293 | 0, 0); | |
1294 | } | |
1295 | ||
1296 | v4l2_dbg(1, debug, &camif->subdev, "%ux%u\n", mf->width, mf->height); | |
1297 | } | |
1298 | ||
1299 | static int s3c_camif_subdev_set_fmt(struct v4l2_subdev *sd, | |
f7234138 | 1300 | struct v4l2_subdev_pad_config *cfg, |
babde1c2 SN |
1301 | struct v4l2_subdev_format *fmt) |
1302 | { | |
1303 | struct camif_dev *camif = v4l2_get_subdevdata(sd); | |
1304 | struct v4l2_mbus_framefmt *mf = &fmt->format; | |
1305 | struct v4l2_rect *crop = &camif->camif_crop; | |
1306 | int i; | |
1307 | ||
1308 | v4l2_dbg(1, debug, sd, "pad%d: code: 0x%x, %ux%u\n", | |
1309 | fmt->pad, mf->code, mf->width, mf->height); | |
1310 | ||
6c5bba9b | 1311 | mf->field = V4L2_FIELD_NONE; |
babde1c2 SN |
1312 | mf->colorspace = V4L2_COLORSPACE_JPEG; |
1313 | mutex_lock(&camif->lock); | |
1314 | ||
1315 | /* | |
1316 | * No pixel format change at the camera input is allowed | |
1317 | * while streaming. | |
1318 | */ | |
1319 | if (vb2_is_busy(&camif->vp[VP_CODEC].vb_queue) || | |
1320 | vb2_is_busy(&camif->vp[VP_PREVIEW].vb_queue)) { | |
1321 | mutex_unlock(&camif->lock); | |
1322 | return -EBUSY; | |
1323 | } | |
1324 | ||
1325 | __camif_subdev_try_format(camif, mf, fmt->pad); | |
1326 | ||
1327 | if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { | |
f7234138 | 1328 | mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); |
babde1c2 SN |
1329 | *mf = fmt->format; |
1330 | mutex_unlock(&camif->lock); | |
1331 | return 0; | |
1332 | } | |
1333 | ||
1334 | switch (fmt->pad) { | |
1335 | case CAMIF_SD_PAD_SINK: | |
1336 | camif->mbus_fmt = *mf; | |
1337 | /* Reset sink crop rectangle. */ | |
1338 | crop->width = mf->width; | |
1339 | crop->height = mf->height; | |
1340 | crop->left = 0; | |
1341 | crop->top = 0; | |
1342 | /* | |
1343 | * Reset source format (the camif's crop rectangle) | |
1344 | * and the video output resolution. | |
1345 | */ | |
1346 | for (i = 0; i < CAMIF_VP_NUM; i++) { | |
1347 | struct camif_frame *frame = &camif->vp[i].out_frame; | |
1348 | frame->rect = *crop; | |
1349 | frame->f_width = mf->width; | |
1350 | frame->f_height = mf->height; | |
1351 | } | |
1352 | break; | |
1353 | ||
1354 | case CAMIF_SD_PAD_SOURCE_C...CAMIF_SD_PAD_SOURCE_P: | |
1355 | /* Pixel format can be only changed on the sink pad. */ | |
1356 | mf->code = camif->mbus_fmt.code; | |
1357 | mf->width = crop->width; | |
1358 | mf->height = crop->height; | |
1359 | break; | |
1360 | } | |
1361 | ||
1362 | mutex_unlock(&camif->lock); | |
1363 | return 0; | |
1364 | } | |
1365 | ||
1366 | static int s3c_camif_subdev_get_selection(struct v4l2_subdev *sd, | |
f7234138 | 1367 | struct v4l2_subdev_pad_config *cfg, |
babde1c2 SN |
1368 | struct v4l2_subdev_selection *sel) |
1369 | { | |
1370 | struct camif_dev *camif = v4l2_get_subdevdata(sd); | |
1371 | struct v4l2_rect *crop = &camif->camif_crop; | |
1372 | struct v4l2_mbus_framefmt *mf = &camif->mbus_fmt; | |
1373 | ||
1374 | if ((sel->target != V4L2_SEL_TGT_CROP && | |
1375 | sel->target != V4L2_SEL_TGT_CROP_BOUNDS) || | |
1376 | sel->pad != CAMIF_SD_PAD_SINK) | |
1377 | return -EINVAL; | |
1378 | ||
1379 | if (sel->which == V4L2_SUBDEV_FORMAT_TRY) { | |
f7234138 | 1380 | sel->r = *v4l2_subdev_get_try_crop(sd, cfg, sel->pad); |
babde1c2 SN |
1381 | return 0; |
1382 | } | |
1383 | ||
1384 | mutex_lock(&camif->lock); | |
1385 | ||
1386 | if (sel->target == V4L2_SEL_TGT_CROP) { | |
1387 | sel->r = *crop; | |
1388 | } else { /* crop bounds */ | |
1389 | sel->r.width = mf->width; | |
1390 | sel->r.height = mf->height; | |
1391 | sel->r.left = 0; | |
1392 | sel->r.top = 0; | |
1393 | } | |
1394 | ||
1395 | mutex_unlock(&camif->lock); | |
1396 | ||
1397 | v4l2_dbg(1, debug, sd, "%s: crop: (%d,%d) %dx%d, size: %ux%u\n", | |
1398 | __func__, crop->left, crop->top, crop->width, | |
1399 | crop->height, mf->width, mf->height); | |
1400 | ||
1401 | return 0; | |
1402 | } | |
1403 | ||
1404 | static void __camif_try_crop(struct camif_dev *camif, struct v4l2_rect *r) | |
1405 | { | |
1406 | struct v4l2_mbus_framefmt *mf = &camif->mbus_fmt; | |
1407 | const struct camif_pix_limits *pix_lim = &camif->variant->pix_limits; | |
1408 | unsigned int left = 2 * r->left; | |
1409 | unsigned int top = 2 * r->top; | |
1410 | ||
1411 | /* | |
1412 | * Following constraints must be met: | |
1413 | * - r->width + 2 * r->left = mf->width; | |
1414 | * - r->height + 2 * r->top = mf->height; | |
1415 | * - crop rectangle size and position must be aligned | |
1416 | * to 8 or 2 pixels, depending on SoC version. | |
1417 | */ | |
1418 | v4l_bound_align_image(&r->width, 0, mf->width, | |
1419 | ffs(pix_lim->win_hor_offset_align) - 1, | |
1420 | &r->height, 0, mf->height, 1, 0); | |
1421 | ||
1422 | v4l_bound_align_image(&left, 0, mf->width - r->width, | |
1423 | ffs(pix_lim->win_hor_offset_align), | |
1424 | &top, 0, mf->height - r->height, 2, 0); | |
1425 | ||
1426 | r->left = left / 2; | |
1427 | r->top = top / 2; | |
1428 | r->width = mf->width - left; | |
1429 | r->height = mf->height - top; | |
1430 | /* | |
1431 | * Make sure we either downscale or upscale both the pixel | |
1432 | * width and height. Just return current crop rectangle if | |
1433 | * this scaler constraint is not met. | |
1434 | */ | |
1435 | if (camif->variant->ip_revision == S3C244X_CAMIF_IP_REV && | |
1436 | camif_is_streaming(camif)) { | |
1437 | unsigned int i; | |
1438 | ||
1439 | for (i = 0; i < CAMIF_VP_NUM; i++) { | |
1440 | struct v4l2_rect *or = &camif->vp[i].out_frame.rect; | |
1441 | if ((or->width > r->width) == (or->height > r->height)) | |
1442 | continue; | |
1443 | *r = camif->camif_crop; | |
1444 | pr_debug("Width/height scaling direction limitation\n"); | |
1445 | break; | |
1446 | } | |
1447 | } | |
1448 | ||
1449 | v4l2_dbg(1, debug, &camif->v4l2_dev, "crop: (%d,%d)/%dx%d, fmt: %ux%u\n", | |
1450 | r->left, r->top, r->width, r->height, mf->width, mf->height); | |
1451 | } | |
1452 | ||
1453 | static int s3c_camif_subdev_set_selection(struct v4l2_subdev *sd, | |
f7234138 | 1454 | struct v4l2_subdev_pad_config *cfg, |
babde1c2 SN |
1455 | struct v4l2_subdev_selection *sel) |
1456 | { | |
1457 | struct camif_dev *camif = v4l2_get_subdevdata(sd); | |
1458 | struct v4l2_rect *crop = &camif->camif_crop; | |
1459 | struct camif_scaler scaler; | |
1460 | ||
1461 | if (sel->target != V4L2_SEL_TGT_CROP || sel->pad != CAMIF_SD_PAD_SINK) | |
1462 | return -EINVAL; | |
1463 | ||
1464 | mutex_lock(&camif->lock); | |
1465 | __camif_try_crop(camif, &sel->r); | |
1466 | ||
1467 | if (sel->which == V4L2_SUBDEV_FORMAT_TRY) { | |
f7234138 | 1468 | *v4l2_subdev_get_try_crop(sd, cfg, sel->pad) = sel->r; |
babde1c2 SN |
1469 | } else { |
1470 | unsigned long flags; | |
1471 | unsigned int i; | |
1472 | ||
1473 | spin_lock_irqsave(&camif->slock, flags); | |
1474 | *crop = sel->r; | |
1475 | ||
1476 | for (i = 0; i < CAMIF_VP_NUM; i++) { | |
1477 | struct camif_vp *vp = &camif->vp[i]; | |
1478 | scaler = vp->scaler; | |
1479 | if (s3c_camif_get_scaler_config(vp, &scaler)) | |
1480 | continue; | |
1481 | vp->scaler = scaler; | |
1482 | vp->state |= ST_VP_CONFIG; | |
1483 | } | |
1484 | ||
1485 | spin_unlock_irqrestore(&camif->slock, flags); | |
1486 | } | |
1487 | mutex_unlock(&camif->lock); | |
1488 | ||
1489 | v4l2_dbg(1, debug, sd, "%s: (%d,%d) %dx%d, f_w: %u, f_h: %u\n", | |
1490 | __func__, crop->left, crop->top, crop->width, crop->height, | |
1491 | camif->mbus_fmt.width, camif->mbus_fmt.height); | |
1492 | ||
1493 | return 0; | |
1494 | } | |
1495 | ||
1496 | static const struct v4l2_subdev_pad_ops s3c_camif_subdev_pad_ops = { | |
1497 | .enum_mbus_code = s3c_camif_subdev_enum_mbus_code, | |
1498 | .get_selection = s3c_camif_subdev_get_selection, | |
1499 | .set_selection = s3c_camif_subdev_set_selection, | |
1500 | .get_fmt = s3c_camif_subdev_get_fmt, | |
1501 | .set_fmt = s3c_camif_subdev_set_fmt, | |
1502 | }; | |
1503 | ||
1504 | static struct v4l2_subdev_ops s3c_camif_subdev_ops = { | |
1505 | .pad = &s3c_camif_subdev_pad_ops, | |
1506 | }; | |
1507 | ||
1508 | static int s3c_camif_subdev_s_ctrl(struct v4l2_ctrl *ctrl) | |
1509 | { | |
1510 | struct camif_dev *camif = container_of(ctrl->handler, struct camif_dev, | |
1511 | ctrl_handler); | |
1512 | unsigned long flags; | |
1513 | ||
1514 | spin_lock_irqsave(&camif->slock, flags); | |
1515 | ||
1516 | switch (ctrl->id) { | |
1517 | case V4L2_CID_COLORFX: | |
1518 | camif->colorfx = camif->ctrl_colorfx->val; | |
1519 | /* Set Cb, Cr */ | |
1520 | switch (ctrl->val) { | |
1521 | case V4L2_COLORFX_SEPIA: | |
1522 | camif->colorfx_cb = 115; | |
1523 | camif->colorfx_cr = 145; | |
1524 | break; | |
1525 | case V4L2_COLORFX_SET_CBCR: | |
1526 | camif->colorfx_cb = camif->ctrl_colorfx_cbcr->val >> 8; | |
1527 | camif->colorfx_cr = camif->ctrl_colorfx_cbcr->val & 0xff; | |
1528 | break; | |
1529 | default: | |
1530 | /* for V4L2_COLORFX_BW and others */ | |
1531 | camif->colorfx_cb = 128; | |
1532 | camif->colorfx_cr = 128; | |
1533 | } | |
1534 | break; | |
1535 | case V4L2_CID_TEST_PATTERN: | |
1536 | camif->test_pattern = camif->ctrl_test_pattern->val; | |
1537 | break; | |
1538 | default: | |
1539 | WARN_ON(1); | |
1540 | } | |
1541 | ||
1542 | camif->vp[VP_CODEC].state |= ST_VP_CONFIG; | |
1543 | camif->vp[VP_PREVIEW].state |= ST_VP_CONFIG; | |
1544 | spin_unlock_irqrestore(&camif->slock, flags); | |
1545 | ||
1546 | return 0; | |
1547 | } | |
1548 | ||
1549 | static const struct v4l2_ctrl_ops s3c_camif_subdev_ctrl_ops = { | |
1550 | .s_ctrl = s3c_camif_subdev_s_ctrl, | |
1551 | }; | |
1552 | ||
1553 | static const char * const s3c_camif_test_pattern_menu[] = { | |
1554 | "Disabled", | |
1555 | "Color bars", | |
1556 | "Horizontal increment", | |
1557 | "Vertical increment", | |
1558 | }; | |
1559 | ||
1560 | int s3c_camif_create_subdev(struct camif_dev *camif) | |
1561 | { | |
1562 | struct v4l2_ctrl_handler *handler = &camif->ctrl_handler; | |
1563 | struct v4l2_subdev *sd = &camif->subdev; | |
1564 | int ret; | |
1565 | ||
1566 | v4l2_subdev_init(sd, &s3c_camif_subdev_ops); | |
1567 | sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; | |
1568 | strlcpy(sd->name, "S3C-CAMIF", sizeof(sd->name)); | |
1569 | ||
1570 | camif->pads[CAMIF_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK; | |
1571 | camif->pads[CAMIF_SD_PAD_SOURCE_C].flags = MEDIA_PAD_FL_SOURCE; | |
1572 | camif->pads[CAMIF_SD_PAD_SOURCE_P].flags = MEDIA_PAD_FL_SOURCE; | |
1573 | ||
1574 | ret = media_entity_init(&sd->entity, CAMIF_SD_PADS_NUM, | |
1575 | camif->pads, 0); | |
1576 | if (ret) | |
1577 | return ret; | |
1578 | ||
1579 | v4l2_ctrl_handler_init(handler, 3); | |
1580 | camif->ctrl_test_pattern = v4l2_ctrl_new_std_menu_items(handler, | |
1581 | &s3c_camif_subdev_ctrl_ops, V4L2_CID_TEST_PATTERN, | |
1582 | ARRAY_SIZE(s3c_camif_test_pattern_menu) - 1, 0, 0, | |
1583 | s3c_camif_test_pattern_menu); | |
1584 | ||
7c869651 HV |
1585 | if (camif->variant->has_img_effect) { |
1586 | camif->ctrl_colorfx = v4l2_ctrl_new_std_menu(handler, | |
babde1c2 SN |
1587 | &s3c_camif_subdev_ctrl_ops, |
1588 | V4L2_CID_COLORFX, V4L2_COLORFX_SET_CBCR, | |
1589 | ~0x981f, V4L2_COLORFX_NONE); | |
1590 | ||
7c869651 | 1591 | camif->ctrl_colorfx_cbcr = v4l2_ctrl_new_std(handler, |
babde1c2 SN |
1592 | &s3c_camif_subdev_ctrl_ops, |
1593 | V4L2_CID_COLORFX_CBCR, 0, 0xffff, 1, 0); | |
7c869651 HV |
1594 | } |
1595 | ||
babde1c2 SN |
1596 | if (handler->error) { |
1597 | v4l2_ctrl_handler_free(handler); | |
1598 | media_entity_cleanup(&sd->entity); | |
1599 | return handler->error; | |
1600 | } | |
1601 | ||
7c869651 HV |
1602 | if (camif->variant->has_img_effect) |
1603 | v4l2_ctrl_auto_cluster(2, &camif->ctrl_colorfx, | |
babde1c2 | 1604 | V4L2_COLORFX_SET_CBCR, false); |
7c869651 | 1605 | |
babde1c2 SN |
1606 | sd->ctrl_handler = handler; |
1607 | v4l2_set_subdevdata(sd, camif); | |
1608 | ||
1609 | return 0; | |
1610 | } | |
1611 | ||
1612 | void s3c_camif_unregister_subdev(struct camif_dev *camif) | |
1613 | { | |
1614 | struct v4l2_subdev *sd = &camif->subdev; | |
1615 | ||
1616 | /* Return if not registered */ | |
1617 | if (v4l2_get_subdevdata(sd) == NULL) | |
1618 | return; | |
1619 | ||
1620 | v4l2_device_unregister_subdev(sd); | |
1621 | media_entity_cleanup(&sd->entity); | |
1622 | v4l2_ctrl_handler_free(&camif->ctrl_handler); | |
1623 | v4l2_set_subdevdata(sd, NULL); | |
1624 | } | |
1625 | ||
1626 | int s3c_camif_set_defaults(struct camif_dev *camif) | |
1627 | { | |
1628 | unsigned int ip_rev = camif->variant->ip_revision; | |
1629 | int i; | |
1630 | ||
1631 | for (i = 0; i < CAMIF_VP_NUM; i++) { | |
1632 | struct camif_vp *vp = &camif->vp[i]; | |
1633 | struct camif_frame *f = &vp->out_frame; | |
1634 | ||
1635 | vp->camif = camif; | |
1636 | vp->id = i; | |
1637 | vp->offset = camif->variant->vp_offset; | |
1638 | ||
1639 | if (ip_rev == S3C244X_CAMIF_IP_REV) | |
1640 | vp->fmt_flags = i ? FMT_FL_S3C24XX_PREVIEW : | |
1641 | FMT_FL_S3C24XX_CODEC; | |
1642 | else | |
1643 | vp->fmt_flags = FMT_FL_S3C64XX; | |
1644 | ||
1645 | vp->out_fmt = s3c_camif_find_format(vp, NULL, 0); | |
1646 | BUG_ON(vp->out_fmt == NULL); | |
1647 | ||
1648 | memset(f, 0, sizeof(*f)); | |
1649 | f->f_width = CAMIF_DEF_WIDTH; | |
1650 | f->f_height = CAMIF_DEF_HEIGHT; | |
1651 | f->rect.width = CAMIF_DEF_WIDTH; | |
1652 | f->rect.height = CAMIF_DEF_HEIGHT; | |
1653 | ||
1654 | /* Scaler is always enabled */ | |
1655 | vp->scaler.enable = 1; | |
1656 | ||
1657 | vp->payload = (f->f_width * f->f_height * | |
1658 | vp->out_fmt->depth) / 8; | |
1659 | } | |
1660 | ||
1661 | memset(&camif->mbus_fmt, 0, sizeof(camif->mbus_fmt)); | |
1662 | camif->mbus_fmt.width = CAMIF_DEF_WIDTH; | |
1663 | camif->mbus_fmt.height = CAMIF_DEF_HEIGHT; | |
1664 | camif->mbus_fmt.code = camif_mbus_formats[0]; | |
1665 | ||
1666 | memset(&camif->camif_crop, 0, sizeof(camif->camif_crop)); | |
1667 | camif->camif_crop.width = CAMIF_DEF_WIDTH; | |
1668 | camif->camif_crop.height = CAMIF_DEF_HEIGHT; | |
1669 | ||
1670 | return 0; | |
1671 | } |