Commit | Line | Data |
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4af81310 SN |
1 | /* |
2 | * Samsung EXYNOS FIMC-LITE (camera host interface) driver | |
3 | * | |
4 | * Copyright (C) 2012 Samsung Electronics Co., Ltd. | |
5 | * 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 | #define pr_fmt(fmt) "%s:%d " fmt, __func__, __LINE__ | |
12 | ||
13 | #include <linux/bug.h> | |
4c8f0629 | 14 | #include <linux/clk.h> |
4af81310 SN |
15 | #include <linux/device.h> |
16 | #include <linux/errno.h> | |
17 | #include <linux/interrupt.h> | |
18 | #include <linux/kernel.h> | |
19 | #include <linux/list.h> | |
20 | #include <linux/module.h> | |
eb62d9e9 | 21 | #include <linux/of.h> |
4af81310 SN |
22 | #include <linux/types.h> |
23 | #include <linux/platform_device.h> | |
24 | #include <linux/pm_runtime.h> | |
25 | #include <linux/slab.h> | |
26 | #include <linux/videodev2.h> | |
27 | ||
28 | #include <media/v4l2-device.h> | |
29 | #include <media/v4l2-ioctl.h> | |
30 | #include <media/v4l2-mem2mem.h> | |
31 | #include <media/videobuf2-core.h> | |
32 | #include <media/videobuf2-dma-contig.h> | |
b9ee31e6 | 33 | #include <media/s5p_fimc.h> |
4af81310 | 34 | |
4c8f0629 | 35 | #include "fimc-core.h" |
b9ee31e6 | 36 | #include "fimc-lite.h" |
4af81310 SN |
37 | #include "fimc-lite-reg.h" |
38 | ||
39 | static int debug; | |
40 | module_param(debug, int, 0644); | |
41 | ||
42 | static const struct fimc_fmt fimc_lite_formats[] = { | |
43 | { | |
44 | .name = "YUV 4:2:2 packed, YCbYCr", | |
45 | .fourcc = V4L2_PIX_FMT_YUYV, | |
46 | .depth = { 16 }, | |
47 | .color = FIMC_FMT_YCBYCR422, | |
48 | .memplanes = 1, | |
49 | .mbus_code = V4L2_MBUS_FMT_YUYV8_2X8, | |
e90ad659 | 50 | .flags = FMT_FLAGS_YUV, |
4af81310 SN |
51 | }, { |
52 | .name = "YUV 4:2:2 packed, CbYCrY", | |
53 | .fourcc = V4L2_PIX_FMT_UYVY, | |
54 | .depth = { 16 }, | |
55 | .color = FIMC_FMT_CBYCRY422, | |
56 | .memplanes = 1, | |
57 | .mbus_code = V4L2_MBUS_FMT_UYVY8_2X8, | |
e90ad659 | 58 | .flags = FMT_FLAGS_YUV, |
4af81310 SN |
59 | }, { |
60 | .name = "YUV 4:2:2 packed, CrYCbY", | |
61 | .fourcc = V4L2_PIX_FMT_VYUY, | |
62 | .depth = { 16 }, | |
63 | .color = FIMC_FMT_CRYCBY422, | |
64 | .memplanes = 1, | |
65 | .mbus_code = V4L2_MBUS_FMT_VYUY8_2X8, | |
e90ad659 | 66 | .flags = FMT_FLAGS_YUV, |
4af81310 SN |
67 | }, { |
68 | .name = "YUV 4:2:2 packed, YCrYCb", | |
69 | .fourcc = V4L2_PIX_FMT_YVYU, | |
70 | .depth = { 16 }, | |
71 | .color = FIMC_FMT_YCRYCB422, | |
72 | .memplanes = 1, | |
73 | .mbus_code = V4L2_MBUS_FMT_YVYU8_2X8, | |
e90ad659 | 74 | .flags = FMT_FLAGS_YUV, |
4af81310 SN |
75 | }, { |
76 | .name = "RAW8 (GRBG)", | |
77 | .fourcc = V4L2_PIX_FMT_SGRBG8, | |
78 | .depth = { 8 }, | |
79 | .color = FIMC_FMT_RAW8, | |
80 | .memplanes = 1, | |
81 | .mbus_code = V4L2_MBUS_FMT_SGRBG8_1X8, | |
e90ad659 | 82 | .flags = FMT_FLAGS_RAW_BAYER, |
4af81310 SN |
83 | }, { |
84 | .name = "RAW10 (GRBG)", | |
85 | .fourcc = V4L2_PIX_FMT_SGRBG10, | |
86 | .depth = { 10 }, | |
87 | .color = FIMC_FMT_RAW10, | |
88 | .memplanes = 1, | |
89 | .mbus_code = V4L2_MBUS_FMT_SGRBG10_1X10, | |
e90ad659 | 90 | .flags = FMT_FLAGS_RAW_BAYER, |
4af81310 SN |
91 | }, { |
92 | .name = "RAW12 (GRBG)", | |
93 | .fourcc = V4L2_PIX_FMT_SGRBG12, | |
94 | .depth = { 12 }, | |
95 | .color = FIMC_FMT_RAW12, | |
96 | .memplanes = 1, | |
97 | .mbus_code = V4L2_MBUS_FMT_SGRBG12_1X12, | |
e90ad659 | 98 | .flags = FMT_FLAGS_RAW_BAYER, |
4af81310 SN |
99 | }, |
100 | }; | |
101 | ||
102 | /** | |
103 | * fimc_lite_find_format - lookup fimc color format by fourcc or media bus code | |
104 | * @pixelformat: fourcc to match, ignored if null | |
105 | * @mbus_code: media bus code to match, ignored if null | |
e90ad659 | 106 | * @mask: the color format flags to match |
4af81310 SN |
107 | * @index: index to the fimc_lite_formats array, ignored if negative |
108 | */ | |
109 | static const struct fimc_fmt *fimc_lite_find_format(const u32 *pixelformat, | |
e90ad659 | 110 | const u32 *mbus_code, unsigned int mask, int index) |
4af81310 SN |
111 | { |
112 | const struct fimc_fmt *fmt, *def_fmt = NULL; | |
113 | unsigned int i; | |
114 | int id = 0; | |
115 | ||
116 | if (index >= (int)ARRAY_SIZE(fimc_lite_formats)) | |
117 | return NULL; | |
118 | ||
119 | for (i = 0; i < ARRAY_SIZE(fimc_lite_formats); ++i) { | |
120 | fmt = &fimc_lite_formats[i]; | |
e90ad659 SN |
121 | if (mask && !(fmt->flags & mask)) |
122 | continue; | |
4af81310 SN |
123 | if (pixelformat && fmt->fourcc == *pixelformat) |
124 | return fmt; | |
125 | if (mbus_code && fmt->mbus_code == *mbus_code) | |
126 | return fmt; | |
127 | if (index == id) | |
128 | def_fmt = fmt; | |
129 | id++; | |
130 | } | |
131 | return def_fmt; | |
132 | } | |
133 | ||
756e6e14 SN |
134 | /* Called with the media graph mutex held or @me stream_count > 0. */ |
135 | static struct v4l2_subdev *__find_remote_sensor(struct media_entity *me) | |
136 | { | |
137 | struct media_pad *pad = &me->pads[0]; | |
138 | struct v4l2_subdev *sd; | |
139 | ||
140 | while (pad->flags & MEDIA_PAD_FL_SINK) { | |
141 | /* source pad */ | |
142 | pad = media_entity_remote_source(pad); | |
143 | if (pad == NULL || | |
144 | media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV) | |
145 | break; | |
146 | ||
147 | sd = media_entity_to_v4l2_subdev(pad->entity); | |
148 | ||
149 | if (sd->grp_id == GRP_ID_FIMC_IS_SENSOR || | |
150 | sd->grp_id == GRP_ID_SENSOR) | |
151 | return sd; | |
152 | /* sink pad */ | |
153 | pad = &sd->entity.pads[0]; | |
154 | } | |
155 | return NULL; | |
156 | } | |
157 | ||
6319d6a0 | 158 | static int fimc_lite_hw_init(struct fimc_lite *fimc, bool isp_output) |
4af81310 | 159 | { |
4c8f0629 | 160 | struct fimc_source_info *si; |
4af81310 SN |
161 | unsigned long flags; |
162 | ||
756e6e14 | 163 | if (fimc->sensor == NULL) |
4af81310 SN |
164 | return -ENXIO; |
165 | ||
e90ad659 | 166 | if (fimc->inp_frame.fmt == NULL || fimc->out_frame.fmt == NULL) |
4af81310 SN |
167 | return -EINVAL; |
168 | ||
6319d6a0 | 169 | /* Get sensor configuration data from the sensor subdev */ |
756e6e14 | 170 | si = v4l2_get_subdev_hostdata(fimc->sensor); |
4c8f0629 SN |
171 | if (!si) |
172 | return -EINVAL; | |
173 | ||
4af81310 SN |
174 | spin_lock_irqsave(&fimc->slock, flags); |
175 | ||
4c8f0629 | 176 | flite_hw_set_camera_bus(fimc, si); |
4af81310 SN |
177 | flite_hw_set_source_format(fimc, &fimc->inp_frame); |
178 | flite_hw_set_window_offset(fimc, &fimc->inp_frame); | |
6319d6a0 | 179 | flite_hw_set_output_dma(fimc, &fimc->out_frame, !isp_output); |
4af81310 SN |
180 | flite_hw_set_interrupt_mask(fimc); |
181 | flite_hw_set_test_pattern(fimc, fimc->test_pattern->val); | |
182 | ||
183 | if (debug > 0) | |
184 | flite_hw_dump_regs(fimc, __func__); | |
185 | ||
186 | spin_unlock_irqrestore(&fimc->slock, flags); | |
187 | return 0; | |
188 | } | |
189 | ||
190 | /* | |
191 | * Reinitialize the driver so it is ready to start the streaming again. | |
192 | * Set fimc->state to indicate stream off and the hardware shut down state. | |
193 | * If not suspending (@suspend is false), return any buffers to videobuf2. | |
194 | * Otherwise put any owned buffers onto the pending buffers queue, so they | |
195 | * can be re-spun when the device is being resumed. Also perform FIMC | |
196 | * software reset and disable streaming on the whole pipeline if required. | |
197 | */ | |
198 | static int fimc_lite_reinit(struct fimc_lite *fimc, bool suspend) | |
199 | { | |
200 | struct flite_buffer *buf; | |
201 | unsigned long flags; | |
202 | bool streaming; | |
203 | ||
204 | spin_lock_irqsave(&fimc->slock, flags); | |
205 | streaming = fimc->state & (1 << ST_SENSOR_STREAM); | |
206 | ||
207 | fimc->state &= ~(1 << ST_FLITE_RUN | 1 << ST_FLITE_OFF | | |
208 | 1 << ST_FLITE_STREAM | 1 << ST_SENSOR_STREAM); | |
209 | if (suspend) | |
210 | fimc->state |= (1 << ST_FLITE_SUSPENDED); | |
211 | else | |
212 | fimc->state &= ~(1 << ST_FLITE_PENDING | | |
213 | 1 << ST_FLITE_SUSPENDED); | |
214 | ||
215 | /* Release unused buffers */ | |
216 | while (!suspend && !list_empty(&fimc->pending_buf_q)) { | |
217 | buf = fimc_lite_pending_queue_pop(fimc); | |
218 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); | |
219 | } | |
220 | /* If suspending put unused buffers onto pending queue */ | |
221 | while (!list_empty(&fimc->active_buf_q)) { | |
222 | buf = fimc_lite_active_queue_pop(fimc); | |
223 | if (suspend) | |
224 | fimc_lite_pending_queue_add(fimc, buf); | |
225 | else | |
226 | vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); | |
227 | } | |
228 | ||
229 | spin_unlock_irqrestore(&fimc->slock, flags); | |
230 | ||
231 | flite_hw_reset(fimc); | |
232 | ||
233 | if (!streaming) | |
234 | return 0; | |
235 | ||
b9ee31e6 | 236 | return fimc_pipeline_call(fimc, set_stream, &fimc->pipeline, 0); |
4af81310 SN |
237 | } |
238 | ||
239 | static int fimc_lite_stop_capture(struct fimc_lite *fimc, bool suspend) | |
240 | { | |
241 | unsigned long flags; | |
242 | ||
243 | if (!fimc_lite_active(fimc)) | |
244 | return 0; | |
245 | ||
246 | spin_lock_irqsave(&fimc->slock, flags); | |
247 | set_bit(ST_FLITE_OFF, &fimc->state); | |
248 | flite_hw_capture_stop(fimc); | |
249 | spin_unlock_irqrestore(&fimc->slock, flags); | |
250 | ||
251 | wait_event_timeout(fimc->irq_queue, | |
252 | !test_bit(ST_FLITE_OFF, &fimc->state), | |
253 | (2*HZ/10)); /* 200 ms */ | |
254 | ||
255 | return fimc_lite_reinit(fimc, suspend); | |
256 | } | |
257 | ||
258 | /* Must be called with fimc.slock spinlock held. */ | |
259 | static void fimc_lite_config_update(struct fimc_lite *fimc) | |
260 | { | |
261 | flite_hw_set_window_offset(fimc, &fimc->inp_frame); | |
262 | flite_hw_set_dma_window(fimc, &fimc->out_frame); | |
263 | flite_hw_set_test_pattern(fimc, fimc->test_pattern->val); | |
264 | clear_bit(ST_FLITE_CONFIG, &fimc->state); | |
265 | } | |
266 | ||
267 | static irqreturn_t flite_irq_handler(int irq, void *priv) | |
268 | { | |
269 | struct fimc_lite *fimc = priv; | |
270 | struct flite_buffer *vbuf; | |
271 | unsigned long flags; | |
272 | struct timeval *tv; | |
273 | struct timespec ts; | |
274 | u32 intsrc; | |
275 | ||
276 | spin_lock_irqsave(&fimc->slock, flags); | |
277 | ||
278 | intsrc = flite_hw_get_interrupt_source(fimc); | |
279 | flite_hw_clear_pending_irq(fimc); | |
280 | ||
281 | if (test_and_clear_bit(ST_FLITE_OFF, &fimc->state)) { | |
282 | wake_up(&fimc->irq_queue); | |
283 | goto done; | |
284 | } | |
285 | ||
286 | if (intsrc & FLITE_REG_CISTATUS_IRQ_SRC_OVERFLOW) { | |
287 | clear_bit(ST_FLITE_RUN, &fimc->state); | |
288 | fimc->events.data_overflow++; | |
289 | } | |
290 | ||
291 | if (intsrc & FLITE_REG_CISTATUS_IRQ_SRC_LASTCAPEND) { | |
292 | flite_hw_clear_last_capture_end(fimc); | |
293 | clear_bit(ST_FLITE_STREAM, &fimc->state); | |
294 | wake_up(&fimc->irq_queue); | |
295 | } | |
296 | ||
03878bb4 | 297 | if (atomic_read(&fimc->out_path) != FIMC_IO_DMA) |
4af81310 SN |
298 | goto done; |
299 | ||
300 | if ((intsrc & FLITE_REG_CISTATUS_IRQ_SRC_FRMSTART) && | |
301 | test_bit(ST_FLITE_RUN, &fimc->state) && | |
302 | !list_empty(&fimc->active_buf_q) && | |
303 | !list_empty(&fimc->pending_buf_q)) { | |
304 | vbuf = fimc_lite_active_queue_pop(fimc); | |
305 | ktime_get_ts(&ts); | |
306 | tv = &vbuf->vb.v4l2_buf.timestamp; | |
307 | tv->tv_sec = ts.tv_sec; | |
308 | tv->tv_usec = ts.tv_nsec / NSEC_PER_USEC; | |
309 | vbuf->vb.v4l2_buf.sequence = fimc->frame_count++; | |
310 | vb2_buffer_done(&vbuf->vb, VB2_BUF_STATE_DONE); | |
311 | ||
312 | vbuf = fimc_lite_pending_queue_pop(fimc); | |
313 | flite_hw_set_output_addr(fimc, vbuf->paddr); | |
314 | fimc_lite_active_queue_add(fimc, vbuf); | |
315 | } | |
316 | ||
317 | if (test_bit(ST_FLITE_CONFIG, &fimc->state)) | |
318 | fimc_lite_config_update(fimc); | |
319 | ||
320 | if (list_empty(&fimc->pending_buf_q)) { | |
321 | flite_hw_capture_stop(fimc); | |
322 | clear_bit(ST_FLITE_STREAM, &fimc->state); | |
323 | } | |
324 | done: | |
325 | set_bit(ST_FLITE_RUN, &fimc->state); | |
326 | spin_unlock_irqrestore(&fimc->slock, flags); | |
327 | return IRQ_HANDLED; | |
328 | } | |
329 | ||
330 | static int start_streaming(struct vb2_queue *q, unsigned int count) | |
331 | { | |
332 | struct fimc_lite *fimc = q->drv_priv; | |
333 | int ret; | |
334 | ||
335 | fimc->frame_count = 0; | |
336 | ||
6319d6a0 | 337 | ret = fimc_lite_hw_init(fimc, false); |
4af81310 SN |
338 | if (ret) { |
339 | fimc_lite_reinit(fimc, false); | |
340 | return ret; | |
341 | } | |
342 | ||
343 | set_bit(ST_FLITE_PENDING, &fimc->state); | |
344 | ||
345 | if (!list_empty(&fimc->active_buf_q) && | |
346 | !test_and_set_bit(ST_FLITE_STREAM, &fimc->state)) { | |
347 | flite_hw_capture_start(fimc); | |
348 | ||
349 | if (!test_and_set_bit(ST_SENSOR_STREAM, &fimc->state)) | |
b9ee31e6 SN |
350 | fimc_pipeline_call(fimc, set_stream, |
351 | &fimc->pipeline, 1); | |
4af81310 SN |
352 | } |
353 | if (debug > 0) | |
354 | flite_hw_dump_regs(fimc, __func__); | |
355 | ||
356 | return 0; | |
357 | } | |
358 | ||
359 | static int stop_streaming(struct vb2_queue *q) | |
360 | { | |
361 | struct fimc_lite *fimc = q->drv_priv; | |
362 | ||
363 | if (!fimc_lite_active(fimc)) | |
364 | return -EINVAL; | |
365 | ||
366 | return fimc_lite_stop_capture(fimc, false); | |
367 | } | |
368 | ||
369 | static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *pfmt, | |
370 | unsigned int *num_buffers, unsigned int *num_planes, | |
371 | unsigned int sizes[], void *allocators[]) | |
372 | { | |
373 | const struct v4l2_pix_format_mplane *pixm = NULL; | |
374 | struct fimc_lite *fimc = vq->drv_priv; | |
375 | struct flite_frame *frame = &fimc->out_frame; | |
e90ad659 | 376 | const struct fimc_fmt *fmt = frame->fmt; |
4af81310 SN |
377 | unsigned long wh; |
378 | int i; | |
379 | ||
380 | if (pfmt) { | |
381 | pixm = &pfmt->fmt.pix_mp; | |
e90ad659 | 382 | fmt = fimc_lite_find_format(&pixm->pixelformat, NULL, 0, -1); |
4af81310 SN |
383 | wh = pixm->width * pixm->height; |
384 | } else { | |
385 | wh = frame->f_width * frame->f_height; | |
386 | } | |
387 | ||
388 | if (fmt == NULL) | |
389 | return -EINVAL; | |
390 | ||
391 | *num_planes = fmt->memplanes; | |
392 | ||
393 | for (i = 0; i < fmt->memplanes; i++) { | |
394 | unsigned int size = (wh * fmt->depth[i]) / 8; | |
395 | if (pixm) | |
396 | sizes[i] = max(size, pixm->plane_fmt[i].sizeimage); | |
397 | else | |
398 | sizes[i] = size; | |
399 | allocators[i] = fimc->alloc_ctx; | |
400 | } | |
401 | ||
402 | return 0; | |
403 | } | |
404 | ||
405 | static int buffer_prepare(struct vb2_buffer *vb) | |
406 | { | |
407 | struct vb2_queue *vq = vb->vb2_queue; | |
408 | struct fimc_lite *fimc = vq->drv_priv; | |
409 | int i; | |
410 | ||
e90ad659 | 411 | if (fimc->out_frame.fmt == NULL) |
4af81310 SN |
412 | return -EINVAL; |
413 | ||
e90ad659 | 414 | for (i = 0; i < fimc->out_frame.fmt->memplanes; i++) { |
4af81310 SN |
415 | unsigned long size = fimc->payload[i]; |
416 | ||
417 | if (vb2_plane_size(vb, i) < size) { | |
1bcd7041 | 418 | v4l2_err(&fimc->vfd, |
4af81310 SN |
419 | "User buffer too small (%ld < %ld)\n", |
420 | vb2_plane_size(vb, i), size); | |
421 | return -EINVAL; | |
422 | } | |
423 | vb2_set_plane_payload(vb, i, size); | |
424 | } | |
425 | ||
426 | return 0; | |
427 | } | |
428 | ||
429 | static void buffer_queue(struct vb2_buffer *vb) | |
430 | { | |
431 | struct flite_buffer *buf | |
432 | = container_of(vb, struct flite_buffer, vb); | |
433 | struct fimc_lite *fimc = vb2_get_drv_priv(vb->vb2_queue); | |
434 | unsigned long flags; | |
435 | ||
436 | spin_lock_irqsave(&fimc->slock, flags); | |
437 | buf->paddr = vb2_dma_contig_plane_dma_addr(vb, 0); | |
438 | ||
439 | if (!test_bit(ST_FLITE_SUSPENDED, &fimc->state) && | |
440 | !test_bit(ST_FLITE_STREAM, &fimc->state) && | |
441 | list_empty(&fimc->active_buf_q)) { | |
442 | flite_hw_set_output_addr(fimc, buf->paddr); | |
443 | fimc_lite_active_queue_add(fimc, buf); | |
444 | } else { | |
445 | fimc_lite_pending_queue_add(fimc, buf); | |
446 | } | |
447 | ||
448 | if (vb2_is_streaming(&fimc->vb_queue) && | |
449 | !list_empty(&fimc->pending_buf_q) && | |
450 | !test_and_set_bit(ST_FLITE_STREAM, &fimc->state)) { | |
451 | flite_hw_capture_start(fimc); | |
452 | spin_unlock_irqrestore(&fimc->slock, flags); | |
453 | ||
454 | if (!test_and_set_bit(ST_SENSOR_STREAM, &fimc->state)) | |
b9ee31e6 SN |
455 | fimc_pipeline_call(fimc, set_stream, |
456 | &fimc->pipeline, 1); | |
4af81310 SN |
457 | return; |
458 | } | |
459 | spin_unlock_irqrestore(&fimc->slock, flags); | |
460 | } | |
461 | ||
4af81310 SN |
462 | static const struct vb2_ops fimc_lite_qops = { |
463 | .queue_setup = queue_setup, | |
464 | .buf_prepare = buffer_prepare, | |
465 | .buf_queue = buffer_queue, | |
ee12b049 SN |
466 | .wait_prepare = vb2_ops_wait_prepare, |
467 | .wait_finish = vb2_ops_wait_finish, | |
4af81310 SN |
468 | .start_streaming = start_streaming, |
469 | .stop_streaming = stop_streaming, | |
470 | }; | |
471 | ||
472 | static void fimc_lite_clear_event_counters(struct fimc_lite *fimc) | |
473 | { | |
474 | unsigned long flags; | |
475 | ||
476 | spin_lock_irqsave(&fimc->slock, flags); | |
477 | memset(&fimc->events, 0, sizeof(fimc->events)); | |
478 | spin_unlock_irqrestore(&fimc->slock, flags); | |
479 | } | |
480 | ||
481 | static int fimc_lite_open(struct file *file) | |
482 | { | |
483 | struct fimc_lite *fimc = video_drvdata(file); | |
740ad921 | 484 | struct media_entity *me = &fimc->vfd.entity; |
e3fc82e8 | 485 | int ret; |
4af81310 | 486 | |
740ad921 | 487 | mutex_lock(&me->parent->graph_mutex); |
4af81310 | 488 | |
740ad921 | 489 | mutex_lock(&fimc->lock); |
03878bb4 | 490 | if (atomic_read(&fimc->out_path) != FIMC_IO_DMA) { |
6319d6a0 | 491 | ret = -EBUSY; |
ee12b049 | 492 | goto unlock; |
6319d6a0 SN |
493 | } |
494 | ||
4af81310 | 495 | set_bit(ST_FLITE_IN_USE, &fimc->state); |
e3fc82e8 SN |
496 | ret = pm_runtime_get_sync(&fimc->pdev->dev); |
497 | if (ret < 0) | |
ee12b049 | 498 | goto unlock; |
4af81310 | 499 | |
e3fc82e8 SN |
500 | ret = v4l2_fh_open(file); |
501 | if (ret < 0) | |
ee12b049 | 502 | goto err_pm; |
4af81310 | 503 | |
ee12b049 SN |
504 | if (!v4l2_fh_is_singular_file(file) || |
505 | atomic_read(&fimc->out_path) != FIMC_IO_DMA) | |
506 | goto unlock; | |
4af81310 | 507 | |
ee12b049 SN |
508 | ret = fimc_pipeline_call(fimc, open, &fimc->pipeline, |
509 | me, true); | |
510 | if (!ret) { | |
4e39da01 | 511 | fimc_lite_clear_event_counters(fimc); |
ee12b049 SN |
512 | fimc->ref_count++; |
513 | goto unlock; | |
4e39da01 | 514 | } |
ee12b049 SN |
515 | |
516 | v4l2_fh_release(file); | |
517 | err_pm: | |
518 | pm_runtime_put_sync(&fimc->pdev->dev); | |
519 | clear_bit(ST_FLITE_IN_USE, &fimc->state); | |
520 | unlock: | |
4e39da01 | 521 | mutex_unlock(&fimc->lock); |
740ad921 | 522 | mutex_unlock(&me->parent->graph_mutex); |
4af81310 SN |
523 | return ret; |
524 | } | |
525 | ||
ee12b049 | 526 | static int fimc_lite_release(struct file *file) |
4af81310 SN |
527 | { |
528 | struct fimc_lite *fimc = video_drvdata(file); | |
4e39da01 | 529 | |
ddc43d6d | 530 | mutex_lock(&fimc->lock); |
4af81310 | 531 | |
ee12b049 | 532 | if (v4l2_fh_is_singular_file(file) && |
03878bb4 | 533 | atomic_read(&fimc->out_path) == FIMC_IO_DMA) { |
9ea89e2b SN |
534 | if (fimc->streaming) { |
535 | media_entity_pipeline_stop(&fimc->vfd.entity); | |
536 | fimc->streaming = false; | |
537 | } | |
4af81310 SN |
538 | clear_bit(ST_FLITE_IN_USE, &fimc->state); |
539 | fimc_lite_stop_capture(fimc, false); | |
b9ee31e6 | 540 | fimc_pipeline_call(fimc, close, &fimc->pipeline); |
ee12b049 | 541 | fimc->ref_count--; |
4af81310 SN |
542 | } |
543 | ||
ee12b049 | 544 | vb2_fop_release(file); |
4af81310 | 545 | pm_runtime_put(&fimc->pdev->dev); |
ee12b049 | 546 | clear_bit(ST_FLITE_SUSPENDED, &fimc->state); |
4af81310 | 547 | |
4e39da01 | 548 | mutex_unlock(&fimc->lock); |
ee12b049 | 549 | return 0; |
4af81310 SN |
550 | } |
551 | ||
552 | static const struct v4l2_file_operations fimc_lite_fops = { | |
553 | .owner = THIS_MODULE, | |
554 | .open = fimc_lite_open, | |
ee12b049 SN |
555 | .release = fimc_lite_release, |
556 | .poll = vb2_fop_poll, | |
4af81310 | 557 | .unlocked_ioctl = video_ioctl2, |
ee12b049 | 558 | .mmap = vb2_fop_mmap, |
4af81310 SN |
559 | }; |
560 | ||
561 | /* | |
562 | * Format and crop negotiation helpers | |
563 | */ | |
564 | ||
565 | static const struct fimc_fmt *fimc_lite_try_format(struct fimc_lite *fimc, | |
566 | u32 *width, u32 *height, | |
567 | u32 *code, u32 *fourcc, int pad) | |
568 | { | |
9c8399c8 | 569 | struct flite_drvdata *dd = fimc->dd; |
4af81310 | 570 | const struct fimc_fmt *fmt; |
e90ad659 | 571 | unsigned int flags = 0; |
4af81310 SN |
572 | |
573 | if (pad == FLITE_SD_PAD_SINK) { | |
9c8399c8 SN |
574 | v4l_bound_align_image(width, 8, dd->max_width, |
575 | ffs(dd->out_width_align) - 1, | |
576 | height, 0, dd->max_height, 0, 0); | |
4af81310 SN |
577 | } else { |
578 | v4l_bound_align_image(width, 8, fimc->inp_frame.rect.width, | |
9c8399c8 | 579 | ffs(dd->out_width_align) - 1, |
4af81310 SN |
580 | height, 0, fimc->inp_frame.rect.height, |
581 | 0, 0); | |
e90ad659 | 582 | flags = fimc->inp_frame.fmt->flags; |
4af81310 SN |
583 | } |
584 | ||
e90ad659 SN |
585 | fmt = fimc_lite_find_format(fourcc, code, flags, 0); |
586 | if (WARN_ON(!fmt)) | |
587 | return NULL; | |
588 | ||
589 | if (code) | |
590 | *code = fmt->mbus_code; | |
591 | if (fourcc) | |
592 | *fourcc = fmt->fourcc; | |
593 | ||
4af81310 SN |
594 | v4l2_dbg(1, debug, &fimc->subdev, "code: 0x%x, %dx%d\n", |
595 | code ? *code : 0, *width, *height); | |
596 | ||
597 | return fmt; | |
598 | } | |
599 | ||
600 | static void fimc_lite_try_crop(struct fimc_lite *fimc, struct v4l2_rect *r) | |
601 | { | |
602 | struct flite_frame *frame = &fimc->inp_frame; | |
603 | ||
604 | v4l_bound_align_image(&r->width, 0, frame->f_width, 0, | |
605 | &r->height, 0, frame->f_height, 0, 0); | |
606 | ||
607 | /* Adjust left/top if cropping rectangle got out of bounds */ | |
608 | r->left = clamp_t(u32, r->left, 0, frame->f_width - r->width); | |
9c8399c8 | 609 | r->left = round_down(r->left, fimc->dd->win_hor_offs_align); |
4af81310 SN |
610 | r->top = clamp_t(u32, r->top, 0, frame->f_height - r->height); |
611 | ||
969e877c | 612 | v4l2_dbg(1, debug, &fimc->subdev, "(%d,%d)/%dx%d, sink fmt: %dx%d\n", |
4af81310 SN |
613 | r->left, r->top, r->width, r->height, |
614 | frame->f_width, frame->f_height); | |
615 | } | |
616 | ||
617 | static void fimc_lite_try_compose(struct fimc_lite *fimc, struct v4l2_rect *r) | |
618 | { | |
619 | struct flite_frame *frame = &fimc->out_frame; | |
620 | struct v4l2_rect *crop_rect = &fimc->inp_frame.rect; | |
621 | ||
622 | /* Scaling is not supported so we enforce compose rectangle size | |
623 | same as size of the sink crop rectangle. */ | |
624 | r->width = crop_rect->width; | |
625 | r->height = crop_rect->height; | |
626 | ||
627 | /* Adjust left/top if the composing rectangle got out of bounds */ | |
628 | r->left = clamp_t(u32, r->left, 0, frame->f_width - r->width); | |
9c8399c8 | 629 | r->left = round_down(r->left, fimc->dd->out_hor_offs_align); |
4af81310 SN |
630 | r->top = clamp_t(u32, r->top, 0, fimc->out_frame.f_height - r->height); |
631 | ||
969e877c | 632 | v4l2_dbg(1, debug, &fimc->subdev, "(%d,%d)/%dx%d, source fmt: %dx%d\n", |
4af81310 SN |
633 | r->left, r->top, r->width, r->height, |
634 | frame->f_width, frame->f_height); | |
635 | } | |
636 | ||
637 | /* | |
638 | * Video node ioctl operations | |
639 | */ | |
640 | static int fimc_vidioc_querycap_capture(struct file *file, void *priv, | |
641 | struct v4l2_capability *cap) | |
642 | { | |
643 | strlcpy(cap->driver, FIMC_LITE_DRV_NAME, sizeof(cap->driver)); | |
644 | cap->bus_info[0] = 0; | |
645 | cap->card[0] = 0; | |
646 | cap->capabilities = V4L2_CAP_STREAMING; | |
647 | return 0; | |
648 | } | |
649 | ||
650 | static int fimc_lite_enum_fmt_mplane(struct file *file, void *priv, | |
651 | struct v4l2_fmtdesc *f) | |
652 | { | |
653 | const struct fimc_fmt *fmt; | |
654 | ||
655 | if (f->index >= ARRAY_SIZE(fimc_lite_formats)) | |
656 | return -EINVAL; | |
657 | ||
658 | fmt = &fimc_lite_formats[f->index]; | |
659 | strlcpy(f->description, fmt->name, sizeof(f->description)); | |
660 | f->pixelformat = fmt->fourcc; | |
661 | ||
662 | return 0; | |
663 | } | |
664 | ||
665 | static int fimc_lite_g_fmt_mplane(struct file *file, void *fh, | |
666 | struct v4l2_format *f) | |
667 | { | |
668 | struct fimc_lite *fimc = video_drvdata(file); | |
669 | struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp; | |
670 | struct v4l2_plane_pix_format *plane_fmt = &pixm->plane_fmt[0]; | |
671 | struct flite_frame *frame = &fimc->out_frame; | |
e90ad659 | 672 | const struct fimc_fmt *fmt = frame->fmt; |
4af81310 SN |
673 | |
674 | plane_fmt->bytesperline = (frame->f_width * fmt->depth[0]) / 8; | |
675 | plane_fmt->sizeimage = plane_fmt->bytesperline * frame->f_height; | |
676 | ||
677 | pixm->num_planes = fmt->memplanes; | |
678 | pixm->pixelformat = fmt->fourcc; | |
679 | pixm->width = frame->f_width; | |
680 | pixm->height = frame->f_height; | |
681 | pixm->field = V4L2_FIELD_NONE; | |
682 | pixm->colorspace = V4L2_COLORSPACE_JPEG; | |
683 | return 0; | |
684 | } | |
685 | ||
686 | static int fimc_lite_try_fmt(struct fimc_lite *fimc, | |
687 | struct v4l2_pix_format_mplane *pixm, | |
688 | const struct fimc_fmt **ffmt) | |
689 | { | |
4af81310 | 690 | u32 bpl = pixm->plane_fmt[0].bytesperline; |
9c8399c8 | 691 | struct flite_drvdata *dd = fimc->dd; |
e90ad659 | 692 | const struct fimc_fmt *inp_fmt = fimc->inp_frame.fmt; |
4af81310 SN |
693 | const struct fimc_fmt *fmt; |
694 | ||
e90ad659 SN |
695 | if (WARN_ON(inp_fmt == NULL)) |
696 | return -EINVAL; | |
697 | /* | |
698 | * We allow some flexibility only for YUV formats. In case of raw | |
699 | * raw Bayer the FIMC-LITE's output format must match its camera | |
700 | * interface input format. | |
701 | */ | |
702 | if (inp_fmt->flags & FMT_FLAGS_YUV) | |
703 | fmt = fimc_lite_find_format(&pixm->pixelformat, NULL, | |
704 | inp_fmt->flags, 0); | |
705 | else | |
706 | fmt = inp_fmt; | |
707 | ||
4af81310 SN |
708 | if (WARN_ON(fmt == NULL)) |
709 | return -EINVAL; | |
710 | if (ffmt) | |
711 | *ffmt = fmt; | |
9c8399c8 SN |
712 | v4l_bound_align_image(&pixm->width, 8, dd->max_width, |
713 | ffs(dd->out_width_align) - 1, | |
714 | &pixm->height, 0, dd->max_height, 0, 0); | |
4af81310 SN |
715 | |
716 | if ((bpl == 0 || ((bpl * 8) / fmt->depth[0]) < pixm->width)) | |
717 | pixm->plane_fmt[0].bytesperline = (pixm->width * | |
718 | fmt->depth[0]) / 8; | |
719 | ||
720 | if (pixm->plane_fmt[0].sizeimage == 0) | |
721 | pixm->plane_fmt[0].sizeimage = (pixm->width * pixm->height * | |
722 | fmt->depth[0]) / 8; | |
723 | pixm->num_planes = fmt->memplanes; | |
724 | pixm->pixelformat = fmt->fourcc; | |
725 | pixm->colorspace = V4L2_COLORSPACE_JPEG; | |
726 | pixm->field = V4L2_FIELD_NONE; | |
727 | return 0; | |
728 | } | |
729 | ||
730 | static int fimc_lite_try_fmt_mplane(struct file *file, void *fh, | |
731 | struct v4l2_format *f) | |
732 | { | |
733 | struct fimc_lite *fimc = video_drvdata(file); | |
4af81310 SN |
734 | return fimc_lite_try_fmt(fimc, &f->fmt.pix_mp, NULL); |
735 | } | |
736 | ||
737 | static int fimc_lite_s_fmt_mplane(struct file *file, void *priv, | |
738 | struct v4l2_format *f) | |
739 | { | |
740 | struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp; | |
741 | struct fimc_lite *fimc = video_drvdata(file); | |
742 | struct flite_frame *frame = &fimc->out_frame; | |
743 | const struct fimc_fmt *fmt = NULL; | |
744 | int ret; | |
745 | ||
746 | if (vb2_is_busy(&fimc->vb_queue)) | |
747 | return -EBUSY; | |
748 | ||
749 | ret = fimc_lite_try_fmt(fimc, &f->fmt.pix_mp, &fmt); | |
750 | if (ret < 0) | |
751 | return ret; | |
752 | ||
e90ad659 | 753 | frame->fmt = fmt; |
4af81310 SN |
754 | fimc->payload[0] = max((pixm->width * pixm->height * fmt->depth[0]) / 8, |
755 | pixm->plane_fmt[0].sizeimage); | |
756 | frame->f_width = pixm->width; | |
757 | frame->f_height = pixm->height; | |
758 | ||
759 | return 0; | |
760 | } | |
761 | ||
762 | static int fimc_pipeline_validate(struct fimc_lite *fimc) | |
763 | { | |
764 | struct v4l2_subdev *sd = &fimc->subdev; | |
765 | struct v4l2_subdev_format sink_fmt, src_fmt; | |
766 | struct media_pad *pad; | |
767 | int ret; | |
768 | ||
769 | while (1) { | |
770 | /* Retrieve format at the sink pad */ | |
771 | pad = &sd->entity.pads[0]; | |
772 | if (!(pad->flags & MEDIA_PAD_FL_SINK)) | |
773 | break; | |
774 | /* Don't call FIMC subdev operation to avoid nested locking */ | |
775 | if (sd == &fimc->subdev) { | |
776 | struct flite_frame *ff = &fimc->out_frame; | |
777 | sink_fmt.format.width = ff->f_width; | |
778 | sink_fmt.format.height = ff->f_height; | |
e90ad659 | 779 | sink_fmt.format.code = fimc->inp_frame.fmt->mbus_code; |
4af81310 SN |
780 | } else { |
781 | sink_fmt.pad = pad->index; | |
782 | sink_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; | |
783 | ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, | |
784 | &sink_fmt); | |
785 | if (ret < 0 && ret != -ENOIOCTLCMD) | |
786 | return -EPIPE; | |
787 | } | |
788 | /* Retrieve format at the source pad */ | |
789 | pad = media_entity_remote_source(pad); | |
790 | if (pad == NULL || | |
791 | media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV) | |
792 | break; | |
793 | ||
794 | sd = media_entity_to_v4l2_subdev(pad->entity); | |
795 | src_fmt.pad = pad->index; | |
796 | src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE; | |
797 | ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt); | |
798 | if (ret < 0 && ret != -ENOIOCTLCMD) | |
799 | return -EPIPE; | |
800 | ||
801 | if (src_fmt.format.width != sink_fmt.format.width || | |
802 | src_fmt.format.height != sink_fmt.format.height || | |
803 | src_fmt.format.code != sink_fmt.format.code) | |
804 | return -EPIPE; | |
805 | } | |
806 | return 0; | |
807 | } | |
808 | ||
809 | static int fimc_lite_streamon(struct file *file, void *priv, | |
810 | enum v4l2_buf_type type) | |
811 | { | |
812 | struct fimc_lite *fimc = video_drvdata(file); | |
95c4a17f | 813 | struct media_entity *entity = &fimc->vfd.entity; |
4af81310 SN |
814 | struct fimc_pipeline *p = &fimc->pipeline; |
815 | int ret; | |
816 | ||
817 | if (fimc_lite_active(fimc)) | |
818 | return -EBUSY; | |
819 | ||
95c4a17f | 820 | ret = media_entity_pipeline_start(entity, p->m_pipeline); |
a1a5861b SK |
821 | if (ret < 0) |
822 | return ret; | |
4af81310 SN |
823 | |
824 | ret = fimc_pipeline_validate(fimc); | |
ee12b049 SN |
825 | if (ret < 0) |
826 | goto err_p_stop; | |
4af81310 | 827 | |
756e6e14 SN |
828 | fimc->sensor = __find_remote_sensor(&fimc->subdev.entity); |
829 | ||
ee12b049 | 830 | ret = vb2_ioctl_streamon(file, priv, type); |
9ea89e2b SN |
831 | if (!ret) { |
832 | fimc->streaming = true; | |
ee12b049 | 833 | return ret; |
9ea89e2b SN |
834 | } |
835 | ||
ee12b049 SN |
836 | err_p_stop: |
837 | media_entity_pipeline_stop(entity); | |
838 | return 0; | |
4af81310 SN |
839 | } |
840 | ||
841 | static int fimc_lite_streamoff(struct file *file, void *priv, | |
842 | enum v4l2_buf_type type) | |
843 | { | |
844 | struct fimc_lite *fimc = video_drvdata(file); | |
4af81310 SN |
845 | int ret; |
846 | ||
ee12b049 | 847 | ret = vb2_ioctl_streamoff(file, priv, type); |
9ea89e2b SN |
848 | if (ret < 0) |
849 | return ret; | |
850 | ||
851 | media_entity_pipeline_stop(&fimc->vfd.entity); | |
852 | fimc->streaming = false; | |
853 | return 0; | |
4af81310 SN |
854 | } |
855 | ||
856 | static int fimc_lite_reqbufs(struct file *file, void *priv, | |
857 | struct v4l2_requestbuffers *reqbufs) | |
858 | { | |
859 | struct fimc_lite *fimc = video_drvdata(file); | |
860 | int ret; | |
861 | ||
862 | reqbufs->count = max_t(u32, FLITE_REQ_BUFS_MIN, reqbufs->count); | |
ee12b049 | 863 | ret = vb2_ioctl_reqbufs(file, priv, reqbufs); |
f68247fc | 864 | if (!ret) |
4af81310 SN |
865 | fimc->reqbufs_count = reqbufs->count; |
866 | ||
867 | return ret; | |
868 | } | |
869 | ||
4af81310 SN |
870 | /* Return 1 if rectangle a is enclosed in rectangle b, or 0 otherwise. */ |
871 | static int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b) | |
872 | { | |
873 | if (a->left < b->left || a->top < b->top) | |
874 | return 0; | |
875 | if (a->left + a->width > b->left + b->width) | |
876 | return 0; | |
877 | if (a->top + a->height > b->top + b->height) | |
878 | return 0; | |
879 | ||
880 | return 1; | |
881 | } | |
882 | ||
883 | static int fimc_lite_g_selection(struct file *file, void *fh, | |
884 | struct v4l2_selection *sel) | |
885 | { | |
886 | struct fimc_lite *fimc = video_drvdata(file); | |
887 | struct flite_frame *f = &fimc->out_frame; | |
888 | ||
889 | if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) | |
890 | return -EINVAL; | |
891 | ||
892 | switch (sel->target) { | |
893 | case V4L2_SEL_TGT_COMPOSE_BOUNDS: | |
894 | case V4L2_SEL_TGT_COMPOSE_DEFAULT: | |
895 | sel->r.left = 0; | |
896 | sel->r.top = 0; | |
897 | sel->r.width = f->f_width; | |
898 | sel->r.height = f->f_height; | |
899 | return 0; | |
900 | ||
c1334823 | 901 | case V4L2_SEL_TGT_COMPOSE: |
4af81310 SN |
902 | sel->r = f->rect; |
903 | return 0; | |
904 | } | |
905 | ||
906 | return -EINVAL; | |
907 | } | |
908 | ||
909 | static int fimc_lite_s_selection(struct file *file, void *fh, | |
910 | struct v4l2_selection *sel) | |
911 | { | |
912 | struct fimc_lite *fimc = video_drvdata(file); | |
913 | struct flite_frame *f = &fimc->out_frame; | |
914 | struct v4l2_rect rect = sel->r; | |
915 | unsigned long flags; | |
916 | ||
917 | if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE || | |
c1334823 | 918 | sel->target != V4L2_SEL_TGT_COMPOSE) |
4af81310 SN |
919 | return -EINVAL; |
920 | ||
921 | fimc_lite_try_compose(fimc, &rect); | |
922 | ||
923 | if ((sel->flags & V4L2_SEL_FLAG_LE) && | |
924 | !enclosed_rectangle(&rect, &sel->r)) | |
925 | return -ERANGE; | |
926 | ||
927 | if ((sel->flags & V4L2_SEL_FLAG_GE) && | |
928 | !enclosed_rectangle(&sel->r, &rect)) | |
929 | return -ERANGE; | |
930 | ||
931 | sel->r = rect; | |
932 | spin_lock_irqsave(&fimc->slock, flags); | |
933 | f->rect = rect; | |
934 | set_bit(ST_FLITE_CONFIG, &fimc->state); | |
935 | spin_unlock_irqrestore(&fimc->slock, flags); | |
936 | ||
937 | return 0; | |
938 | } | |
939 | ||
940 | static const struct v4l2_ioctl_ops fimc_lite_ioctl_ops = { | |
941 | .vidioc_querycap = fimc_vidioc_querycap_capture, | |
942 | .vidioc_enum_fmt_vid_cap_mplane = fimc_lite_enum_fmt_mplane, | |
943 | .vidioc_try_fmt_vid_cap_mplane = fimc_lite_try_fmt_mplane, | |
944 | .vidioc_s_fmt_vid_cap_mplane = fimc_lite_s_fmt_mplane, | |
945 | .vidioc_g_fmt_vid_cap_mplane = fimc_lite_g_fmt_mplane, | |
946 | .vidioc_g_selection = fimc_lite_g_selection, | |
947 | .vidioc_s_selection = fimc_lite_s_selection, | |
948 | .vidioc_reqbufs = fimc_lite_reqbufs, | |
ee12b049 SN |
949 | .vidioc_querybuf = vb2_ioctl_querybuf, |
950 | .vidioc_prepare_buf = vb2_ioctl_prepare_buf, | |
951 | .vidioc_create_bufs = vb2_ioctl_create_bufs, | |
952 | .vidioc_qbuf = vb2_ioctl_qbuf, | |
953 | .vidioc_dqbuf = vb2_ioctl_dqbuf, | |
4af81310 SN |
954 | .vidioc_streamon = fimc_lite_streamon, |
955 | .vidioc_streamoff = fimc_lite_streamoff, | |
956 | }; | |
957 | ||
958 | /* Capture subdev media entity operations */ | |
959 | static int fimc_lite_link_setup(struct media_entity *entity, | |
960 | const struct media_pad *local, | |
961 | const struct media_pad *remote, u32 flags) | |
962 | { | |
963 | struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity); | |
964 | struct fimc_lite *fimc = v4l2_get_subdevdata(sd); | |
965 | unsigned int remote_ent_type = media_entity_type(remote->entity); | |
6319d6a0 | 966 | int ret = 0; |
4af81310 SN |
967 | |
968 | if (WARN_ON(fimc == NULL)) | |
969 | return 0; | |
970 | ||
969e877c | 971 | v4l2_dbg(1, debug, sd, "%s: %s --> %s, flags: 0x%x. source_id: 0x%x\n", |
6319d6a0 | 972 | __func__, remote->entity->name, local->entity->name, |
4af81310 SN |
973 | flags, fimc->source_subdev_grp_id); |
974 | ||
6319d6a0 | 975 | mutex_lock(&fimc->lock); |
4af81310 | 976 | |
6319d6a0 SN |
977 | switch (local->index) { |
978 | case FLITE_SD_PAD_SINK: | |
979 | if (remote_ent_type != MEDIA_ENT_T_V4L2_SUBDEV) { | |
980 | ret = -EINVAL; | |
981 | break; | |
982 | } | |
4af81310 | 983 | if (flags & MEDIA_LNK_FL_ENABLED) { |
6319d6a0 SN |
984 | if (fimc->source_subdev_grp_id == 0) |
985 | fimc->source_subdev_grp_id = sd->grp_id; | |
986 | else | |
987 | ret = -EBUSY; | |
988 | } else { | |
989 | fimc->source_subdev_grp_id = 0; | |
990 | fimc->sensor = NULL; | |
4af81310 | 991 | } |
6319d6a0 | 992 | break; |
4af81310 | 993 | |
6319d6a0 SN |
994 | case FLITE_SD_PAD_SOURCE_DMA: |
995 | if (!(flags & MEDIA_LNK_FL_ENABLED)) | |
03878bb4 | 996 | atomic_set(&fimc->out_path, FIMC_IO_NONE); |
6319d6a0 | 997 | else if (remote_ent_type == MEDIA_ENT_T_DEVNODE) |
03878bb4 | 998 | atomic_set(&fimc->out_path, FIMC_IO_DMA); |
6319d6a0 SN |
999 | else |
1000 | ret = -EINVAL; | |
4af81310 SN |
1001 | break; |
1002 | ||
6319d6a0 SN |
1003 | case FLITE_SD_PAD_SOURCE_ISP: |
1004 | if (!(flags & MEDIA_LNK_FL_ENABLED)) | |
03878bb4 | 1005 | atomic_set(&fimc->out_path, FIMC_IO_NONE); |
6319d6a0 | 1006 | else if (remote_ent_type == MEDIA_ENT_T_V4L2_SUBDEV) |
03878bb4 | 1007 | atomic_set(&fimc->out_path, FIMC_IO_ISP); |
4af81310 | 1008 | else |
6319d6a0 | 1009 | ret = -EINVAL; |
4af81310 SN |
1010 | break; |
1011 | ||
1012 | default: | |
1013 | v4l2_err(sd, "Invalid pad index\n"); | |
6319d6a0 | 1014 | ret = -EINVAL; |
4af81310 | 1015 | } |
03878bb4 | 1016 | mb(); |
4af81310 | 1017 | |
6319d6a0 SN |
1018 | mutex_unlock(&fimc->lock); |
1019 | return ret; | |
4af81310 SN |
1020 | } |
1021 | ||
1022 | static const struct media_entity_operations fimc_lite_subdev_media_ops = { | |
1023 | .link_setup = fimc_lite_link_setup, | |
1024 | }; | |
1025 | ||
1026 | static int fimc_lite_subdev_enum_mbus_code(struct v4l2_subdev *sd, | |
1027 | struct v4l2_subdev_fh *fh, | |
1028 | struct v4l2_subdev_mbus_code_enum *code) | |
1029 | { | |
1030 | const struct fimc_fmt *fmt; | |
1031 | ||
e90ad659 | 1032 | fmt = fimc_lite_find_format(NULL, NULL, 0, code->index); |
4af81310 SN |
1033 | if (!fmt) |
1034 | return -EINVAL; | |
1035 | code->code = fmt->mbus_code; | |
1036 | return 0; | |
1037 | } | |
1038 | ||
1039 | static int fimc_lite_subdev_get_fmt(struct v4l2_subdev *sd, | |
1040 | struct v4l2_subdev_fh *fh, | |
1041 | struct v4l2_subdev_format *fmt) | |
1042 | { | |
1043 | struct fimc_lite *fimc = v4l2_get_subdevdata(sd); | |
1044 | struct v4l2_mbus_framefmt *mf = &fmt->format; | |
e90ad659 | 1045 | struct flite_frame *f = &fimc->inp_frame; |
4af81310 SN |
1046 | |
1047 | if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { | |
1048 | mf = v4l2_subdev_get_try_format(fh, fmt->pad); | |
1049 | fmt->format = *mf; | |
1050 | return 0; | |
1051 | } | |
1052 | mf->colorspace = V4L2_COLORSPACE_JPEG; | |
1053 | ||
1054 | mutex_lock(&fimc->lock); | |
e90ad659 | 1055 | mf->code = f->fmt->mbus_code; |
4af81310 SN |
1056 | |
1057 | if (fmt->pad == FLITE_SD_PAD_SINK) { | |
1058 | /* full camera input frame size */ | |
1059 | mf->width = f->f_width; | |
1060 | mf->height = f->f_height; | |
1061 | } else { | |
1062 | /* crop size */ | |
1063 | mf->width = f->rect.width; | |
1064 | mf->height = f->rect.height; | |
1065 | } | |
1066 | mutex_unlock(&fimc->lock); | |
1067 | return 0; | |
1068 | } | |
1069 | ||
1070 | static int fimc_lite_subdev_set_fmt(struct v4l2_subdev *sd, | |
1071 | struct v4l2_subdev_fh *fh, | |
1072 | struct v4l2_subdev_format *fmt) | |
1073 | { | |
1074 | struct fimc_lite *fimc = v4l2_get_subdevdata(sd); | |
1075 | struct v4l2_mbus_framefmt *mf = &fmt->format; | |
1076 | struct flite_frame *sink = &fimc->inp_frame; | |
9356ac76 | 1077 | struct flite_frame *source = &fimc->out_frame; |
4af81310 SN |
1078 | const struct fimc_fmt *ffmt; |
1079 | ||
969e877c | 1080 | v4l2_dbg(1, debug, sd, "pad%d: code: 0x%x, %dx%d\n", |
4af81310 SN |
1081 | fmt->pad, mf->code, mf->width, mf->height); |
1082 | ||
1083 | mf->colorspace = V4L2_COLORSPACE_JPEG; | |
1084 | mutex_lock(&fimc->lock); | |
1085 | ||
03878bb4 SN |
1086 | if ((atomic_read(&fimc->out_path) == FIMC_IO_ISP && |
1087 | sd->entity.stream_count > 0) || | |
1088 | (atomic_read(&fimc->out_path) == FIMC_IO_DMA && | |
1089 | vb2_is_busy(&fimc->vb_queue))) { | |
4af81310 SN |
1090 | mutex_unlock(&fimc->lock); |
1091 | return -EBUSY; | |
1092 | } | |
1093 | ||
1094 | ffmt = fimc_lite_try_format(fimc, &mf->width, &mf->height, | |
1095 | &mf->code, NULL, fmt->pad); | |
1096 | ||
1097 | if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { | |
1098 | mf = v4l2_subdev_get_try_format(fh, fmt->pad); | |
1099 | *mf = fmt->format; | |
1100 | mutex_unlock(&fimc->lock); | |
1101 | return 0; | |
1102 | } | |
1103 | ||
1104 | if (fmt->pad == FLITE_SD_PAD_SINK) { | |
1105 | sink->f_width = mf->width; | |
1106 | sink->f_height = mf->height; | |
e90ad659 | 1107 | sink->fmt = ffmt; |
4af81310 SN |
1108 | /* Set sink crop rectangle */ |
1109 | sink->rect.width = mf->width; | |
1110 | sink->rect.height = mf->height; | |
1111 | sink->rect.left = 0; | |
1112 | sink->rect.top = 0; | |
9356ac76 SN |
1113 | /* Reset source format and crop rectangle */ |
1114 | source->rect = sink->rect; | |
1115 | source->f_width = mf->width; | |
1116 | source->f_height = mf->height; | |
4af81310 SN |
1117 | } else { |
1118 | /* Allow changing format only on sink pad */ | |
e90ad659 | 1119 | mf->code = sink->fmt->mbus_code; |
4af81310 SN |
1120 | mf->width = sink->rect.width; |
1121 | mf->height = sink->rect.height; | |
1122 | } | |
1123 | ||
1124 | mutex_unlock(&fimc->lock); | |
1125 | return 0; | |
1126 | } | |
1127 | ||
1128 | static int fimc_lite_subdev_get_selection(struct v4l2_subdev *sd, | |
1129 | struct v4l2_subdev_fh *fh, | |
1130 | struct v4l2_subdev_selection *sel) | |
1131 | { | |
1132 | struct fimc_lite *fimc = v4l2_get_subdevdata(sd); | |
1133 | struct flite_frame *f = &fimc->inp_frame; | |
1134 | ||
5689b288 SA |
1135 | if ((sel->target != V4L2_SEL_TGT_CROP && |
1136 | sel->target != V4L2_SEL_TGT_CROP_BOUNDS) || | |
1137 | sel->pad != FLITE_SD_PAD_SINK) | |
4af81310 SN |
1138 | return -EINVAL; |
1139 | ||
1140 | if (sel->which == V4L2_SUBDEV_FORMAT_TRY) { | |
1141 | sel->r = *v4l2_subdev_get_try_crop(fh, sel->pad); | |
1142 | return 0; | |
1143 | } | |
1144 | ||
1145 | mutex_lock(&fimc->lock); | |
5689b288 | 1146 | if (sel->target == V4L2_SEL_TGT_CROP) { |
4af81310 SN |
1147 | sel->r = f->rect; |
1148 | } else { | |
1149 | sel->r.left = 0; | |
1150 | sel->r.top = 0; | |
1151 | sel->r.width = f->f_width; | |
1152 | sel->r.height = f->f_height; | |
1153 | } | |
1154 | mutex_unlock(&fimc->lock); | |
1155 | ||
969e877c | 1156 | v4l2_dbg(1, debug, sd, "%s: (%d,%d) %dx%d, f_w: %d, f_h: %d\n", |
4af81310 SN |
1157 | __func__, f->rect.left, f->rect.top, f->rect.width, |
1158 | f->rect.height, f->f_width, f->f_height); | |
1159 | ||
1160 | return 0; | |
1161 | } | |
1162 | ||
1163 | static int fimc_lite_subdev_set_selection(struct v4l2_subdev *sd, | |
1164 | struct v4l2_subdev_fh *fh, | |
1165 | struct v4l2_subdev_selection *sel) | |
1166 | { | |
1167 | struct fimc_lite *fimc = v4l2_get_subdevdata(sd); | |
1168 | struct flite_frame *f = &fimc->inp_frame; | |
1169 | int ret = 0; | |
1170 | ||
5689b288 | 1171 | if (sel->target != V4L2_SEL_TGT_CROP || sel->pad != FLITE_SD_PAD_SINK) |
4af81310 SN |
1172 | return -EINVAL; |
1173 | ||
1174 | mutex_lock(&fimc->lock); | |
1175 | fimc_lite_try_crop(fimc, &sel->r); | |
1176 | ||
1177 | if (sel->which == V4L2_SUBDEV_FORMAT_TRY) { | |
1178 | *v4l2_subdev_get_try_crop(fh, sel->pad) = sel->r; | |
1179 | } else { | |
1180 | unsigned long flags; | |
1181 | spin_lock_irqsave(&fimc->slock, flags); | |
1182 | f->rect = sel->r; | |
1183 | /* Same crop rectangle on the source pad */ | |
1184 | fimc->out_frame.rect = sel->r; | |
1185 | set_bit(ST_FLITE_CONFIG, &fimc->state); | |
1186 | spin_unlock_irqrestore(&fimc->slock, flags); | |
1187 | } | |
1188 | mutex_unlock(&fimc->lock); | |
1189 | ||
969e877c | 1190 | v4l2_dbg(1, debug, sd, "%s: (%d,%d) %dx%d, f_w: %d, f_h: %d\n", |
4af81310 SN |
1191 | __func__, f->rect.left, f->rect.top, f->rect.width, |
1192 | f->rect.height, f->f_width, f->f_height); | |
1193 | ||
1194 | return ret; | |
1195 | } | |
1196 | ||
1197 | static int fimc_lite_subdev_s_stream(struct v4l2_subdev *sd, int on) | |
1198 | { | |
1199 | struct fimc_lite *fimc = v4l2_get_subdevdata(sd); | |
6319d6a0 SN |
1200 | unsigned long flags; |
1201 | int ret; | |
4af81310 | 1202 | |
6319d6a0 SN |
1203 | /* |
1204 | * Find sensor subdev linked to FIMC-LITE directly or through | |
1205 | * MIPI-CSIS. This is required for configuration where FIMC-LITE | |
1206 | * is used as a subdev only and feeds data internally to FIMC-IS. | |
1207 | * The pipeline links are protected through entity.stream_count | |
1208 | * so there is no need to take the media graph mutex here. | |
1209 | */ | |
1210 | fimc->sensor = __find_remote_sensor(&sd->entity); | |
1211 | ||
03878bb4 | 1212 | if (atomic_read(&fimc->out_path) != FIMC_IO_ISP) |
4af81310 SN |
1213 | return -ENOIOCTLCMD; |
1214 | ||
03878bb4 | 1215 | mutex_lock(&fimc->lock); |
6319d6a0 SN |
1216 | if (on) { |
1217 | flite_hw_reset(fimc); | |
1218 | ret = fimc_lite_hw_init(fimc, true); | |
1219 | if (!ret) { | |
1220 | spin_lock_irqsave(&fimc->slock, flags); | |
1221 | flite_hw_capture_start(fimc); | |
1222 | spin_unlock_irqrestore(&fimc->slock, flags); | |
1223 | } | |
1224 | } else { | |
1225 | set_bit(ST_FLITE_OFF, &fimc->state); | |
4af81310 | 1226 | |
6319d6a0 SN |
1227 | spin_lock_irqsave(&fimc->slock, flags); |
1228 | flite_hw_capture_stop(fimc); | |
1229 | spin_unlock_irqrestore(&fimc->slock, flags); | |
1230 | ||
1231 | ret = wait_event_timeout(fimc->irq_queue, | |
1232 | !test_bit(ST_FLITE_OFF, &fimc->state), | |
1233 | msecs_to_jiffies(200)); | |
1234 | if (ret == 0) | |
1235 | v4l2_err(sd, "s_stream(0) timeout\n"); | |
1236 | clear_bit(ST_FLITE_RUN, &fimc->state); | |
1237 | } | |
1238 | ||
1239 | mutex_unlock(&fimc->lock); | |
1240 | return ret; | |
4af81310 SN |
1241 | } |
1242 | ||
4af81310 SN |
1243 | static int fimc_lite_log_status(struct v4l2_subdev *sd) |
1244 | { | |
1245 | struct fimc_lite *fimc = v4l2_get_subdevdata(sd); | |
1246 | ||
1247 | flite_hw_dump_regs(fimc, __func__); | |
1248 | return 0; | |
1249 | } | |
1250 | ||
1251 | static int fimc_lite_subdev_registered(struct v4l2_subdev *sd) | |
1252 | { | |
1253 | struct fimc_lite *fimc = v4l2_get_subdevdata(sd); | |
1254 | struct vb2_queue *q = &fimc->vb_queue; | |
1bcd7041 | 1255 | struct video_device *vfd = &fimc->vfd; |
4af81310 SN |
1256 | int ret; |
1257 | ||
1bcd7041 SN |
1258 | memset(vfd, 0, sizeof(*vfd)); |
1259 | ||
e90ad659 SN |
1260 | fimc->inp_frame.fmt = &fimc_lite_formats[0]; |
1261 | fimc->out_frame.fmt = &fimc_lite_formats[0]; | |
03878bb4 | 1262 | atomic_set(&fimc->out_path, FIMC_IO_DMA); |
4af81310 | 1263 | |
4af81310 SN |
1264 | snprintf(vfd->name, sizeof(vfd->name), "fimc-lite.%d.capture", |
1265 | fimc->index); | |
1266 | ||
1267 | vfd->fops = &fimc_lite_fops; | |
1268 | vfd->ioctl_ops = &fimc_lite_ioctl_ops; | |
1269 | vfd->v4l2_dev = sd->v4l2_dev; | |
1270 | vfd->minor = -1; | |
1bcd7041 | 1271 | vfd->release = video_device_release_empty; |
ee12b049 | 1272 | vfd->queue = q; |
4af81310 SN |
1273 | fimc->reqbufs_count = 0; |
1274 | ||
1275 | INIT_LIST_HEAD(&fimc->pending_buf_q); | |
1276 | INIT_LIST_HEAD(&fimc->active_buf_q); | |
1277 | ||
1278 | memset(q, 0, sizeof(*q)); | |
1279 | q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; | |
1280 | q->io_modes = VB2_MMAP | VB2_USERPTR; | |
1281 | q->ops = &fimc_lite_qops; | |
1282 | q->mem_ops = &vb2_dma_contig_memops; | |
1283 | q->buf_struct_size = sizeof(struct flite_buffer); | |
1284 | q->drv_priv = fimc; | |
6aa69f99 | 1285 | q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
ee12b049 | 1286 | q->lock = &fimc->lock; |
4af81310 | 1287 | |
41fd087f SN |
1288 | ret = vb2_queue_init(q); |
1289 | if (ret < 0) | |
1290 | return ret; | |
4af81310 SN |
1291 | |
1292 | fimc->vd_pad.flags = MEDIA_PAD_FL_SINK; | |
1293 | ret = media_entity_init(&vfd->entity, 1, &fimc->vd_pad, 0); | |
1bcd7041 SN |
1294 | if (ret < 0) |
1295 | return ret; | |
4af81310 SN |
1296 | |
1297 | video_set_drvdata(vfd, fimc); | |
97d66c47 | 1298 | fimc->pipeline_ops = v4l2_get_subdev_hostdata(sd); |
4af81310 SN |
1299 | |
1300 | ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1); | |
1bcd7041 SN |
1301 | if (ret < 0) { |
1302 | media_entity_cleanup(&vfd->entity); | |
97d66c47 | 1303 | fimc->pipeline_ops = NULL; |
1bcd7041 SN |
1304 | return ret; |
1305 | } | |
4af81310 SN |
1306 | |
1307 | v4l2_info(sd->v4l2_dev, "Registered %s as /dev/%s\n", | |
1308 | vfd->name, video_device_node_name(vfd)); | |
1309 | return 0; | |
4af81310 SN |
1310 | } |
1311 | ||
1312 | static void fimc_lite_subdev_unregistered(struct v4l2_subdev *sd) | |
1313 | { | |
1314 | struct fimc_lite *fimc = v4l2_get_subdevdata(sd); | |
1315 | ||
1316 | if (fimc == NULL) | |
1317 | return; | |
1318 | ||
1bcd7041 SN |
1319 | if (video_is_registered(&fimc->vfd)) { |
1320 | video_unregister_device(&fimc->vfd); | |
1321 | media_entity_cleanup(&fimc->vfd.entity); | |
97d66c47 | 1322 | fimc->pipeline_ops = NULL; |
4af81310 SN |
1323 | } |
1324 | } | |
1325 | ||
1326 | static const struct v4l2_subdev_internal_ops fimc_lite_subdev_internal_ops = { | |
1327 | .registered = fimc_lite_subdev_registered, | |
1328 | .unregistered = fimc_lite_subdev_unregistered, | |
1329 | }; | |
1330 | ||
1331 | static const struct v4l2_subdev_pad_ops fimc_lite_subdev_pad_ops = { | |
1332 | .enum_mbus_code = fimc_lite_subdev_enum_mbus_code, | |
1333 | .get_selection = fimc_lite_subdev_get_selection, | |
1334 | .set_selection = fimc_lite_subdev_set_selection, | |
1335 | .get_fmt = fimc_lite_subdev_get_fmt, | |
1336 | .set_fmt = fimc_lite_subdev_set_fmt, | |
1337 | }; | |
1338 | ||
1339 | static const struct v4l2_subdev_video_ops fimc_lite_subdev_video_ops = { | |
1340 | .s_stream = fimc_lite_subdev_s_stream, | |
1341 | }; | |
1342 | ||
1343 | static const struct v4l2_subdev_core_ops fimc_lite_core_ops = { | |
4af81310 SN |
1344 | .log_status = fimc_lite_log_status, |
1345 | }; | |
1346 | ||
1347 | static struct v4l2_subdev_ops fimc_lite_subdev_ops = { | |
1348 | .core = &fimc_lite_core_ops, | |
1349 | .video = &fimc_lite_subdev_video_ops, | |
1350 | .pad = &fimc_lite_subdev_pad_ops, | |
1351 | }; | |
1352 | ||
1353 | static int fimc_lite_s_ctrl(struct v4l2_ctrl *ctrl) | |
1354 | { | |
1355 | struct fimc_lite *fimc = container_of(ctrl->handler, struct fimc_lite, | |
1356 | ctrl_handler); | |
1357 | set_bit(ST_FLITE_CONFIG, &fimc->state); | |
1358 | return 0; | |
1359 | } | |
1360 | ||
1361 | static const struct v4l2_ctrl_ops fimc_lite_ctrl_ops = { | |
1362 | .s_ctrl = fimc_lite_s_ctrl, | |
1363 | }; | |
1364 | ||
1365 | static const struct v4l2_ctrl_config fimc_lite_ctrl = { | |
1366 | .ops = &fimc_lite_ctrl_ops, | |
1367 | .id = V4L2_CTRL_CLASS_USER | 0x1001, | |
1368 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
1369 | .name = "Test Pattern 640x480", | |
4cec1893 | 1370 | .step = 1, |
4af81310 SN |
1371 | }; |
1372 | ||
1373 | static int fimc_lite_create_capture_subdev(struct fimc_lite *fimc) | |
1374 | { | |
1375 | struct v4l2_ctrl_handler *handler = &fimc->ctrl_handler; | |
1376 | struct v4l2_subdev *sd = &fimc->subdev; | |
1377 | int ret; | |
1378 | ||
1379 | v4l2_subdev_init(sd, &fimc_lite_subdev_ops); | |
5a66561f | 1380 | sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; |
4af81310 SN |
1381 | snprintf(sd->name, sizeof(sd->name), "FIMC-LITE.%d", fimc->index); |
1382 | ||
6319d6a0 SN |
1383 | fimc->subdev_pads[FLITE_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK; |
1384 | fimc->subdev_pads[FLITE_SD_PAD_SOURCE_DMA].flags = MEDIA_PAD_FL_SOURCE; | |
1385 | fimc->subdev_pads[FLITE_SD_PAD_SOURCE_ISP].flags = MEDIA_PAD_FL_SOURCE; | |
1386 | ret = media_entity_init(&sd->entity, FLITE_SD_PADS_NUM, | |
4af81310 SN |
1387 | fimc->subdev_pads, 0); |
1388 | if (ret) | |
1389 | return ret; | |
1390 | ||
1391 | v4l2_ctrl_handler_init(handler, 1); | |
1392 | fimc->test_pattern = v4l2_ctrl_new_custom(handler, &fimc_lite_ctrl, | |
1393 | NULL); | |
1394 | if (handler->error) { | |
1395 | media_entity_cleanup(&sd->entity); | |
1396 | return handler->error; | |
1397 | } | |
1398 | ||
1399 | sd->ctrl_handler = handler; | |
1400 | sd->internal_ops = &fimc_lite_subdev_internal_ops; | |
1401 | sd->entity.ops = &fimc_lite_subdev_media_ops; | |
1402 | v4l2_set_subdevdata(sd, fimc); | |
1403 | ||
1404 | return 0; | |
1405 | } | |
1406 | ||
1407 | static void fimc_lite_unregister_capture_subdev(struct fimc_lite *fimc) | |
1408 | { | |
1409 | struct v4l2_subdev *sd = &fimc->subdev; | |
1410 | ||
1411 | v4l2_device_unregister_subdev(sd); | |
1412 | media_entity_cleanup(&sd->entity); | |
1413 | v4l2_ctrl_handler_free(&fimc->ctrl_handler); | |
1414 | v4l2_set_subdevdata(sd, NULL); | |
1415 | } | |
1416 | ||
1417 | static void fimc_lite_clk_put(struct fimc_lite *fimc) | |
1418 | { | |
1419 | if (IS_ERR_OR_NULL(fimc->clock)) | |
1420 | return; | |
1421 | ||
1422 | clk_unprepare(fimc->clock); | |
1423 | clk_put(fimc->clock); | |
1424 | fimc->clock = NULL; | |
1425 | } | |
1426 | ||
1427 | static int fimc_lite_clk_get(struct fimc_lite *fimc) | |
1428 | { | |
1429 | int ret; | |
1430 | ||
1431 | fimc->clock = clk_get(&fimc->pdev->dev, FLITE_CLK_NAME); | |
1432 | if (IS_ERR(fimc->clock)) | |
1433 | return PTR_ERR(fimc->clock); | |
1434 | ||
1435 | ret = clk_prepare(fimc->clock); | |
1436 | if (ret < 0) { | |
1437 | clk_put(fimc->clock); | |
1438 | fimc->clock = NULL; | |
1439 | } | |
1440 | return ret; | |
1441 | } | |
1442 | ||
eb62d9e9 SN |
1443 | static const struct of_device_id flite_of_match[]; |
1444 | ||
4c62e976 | 1445 | static int fimc_lite_probe(struct platform_device *pdev) |
4af81310 | 1446 | { |
eb62d9e9 SN |
1447 | struct flite_drvdata *drv_data = NULL; |
1448 | struct device *dev = &pdev->dev; | |
1449 | const struct of_device_id *of_id; | |
4af81310 SN |
1450 | struct fimc_lite *fimc; |
1451 | struct resource *res; | |
1452 | int ret; | |
1453 | ||
eb62d9e9 | 1454 | fimc = devm_kzalloc(dev, sizeof(*fimc), GFP_KERNEL); |
4af81310 SN |
1455 | if (!fimc) |
1456 | return -ENOMEM; | |
1457 | ||
eb62d9e9 SN |
1458 | if (dev->of_node) { |
1459 | of_id = of_match_node(flite_of_match, dev->of_node); | |
1460 | if (of_id) | |
1461 | drv_data = (struct flite_drvdata *)of_id->data; | |
1462 | fimc->index = of_alias_get_id(dev->of_node, "fimc-lite"); | |
1463 | } else { | |
1464 | drv_data = fimc_lite_get_drvdata(pdev); | |
1465 | fimc->index = pdev->id; | |
1466 | } | |
1467 | ||
1468 | if (!drv_data || fimc->index < 0 || fimc->index >= FIMC_LITE_MAX_DEVS) | |
1469 | return -EINVAL; | |
1470 | ||
9c8399c8 | 1471 | fimc->dd = drv_data; |
4af81310 SN |
1472 | fimc->pdev = pdev; |
1473 | ||
1474 | init_waitqueue_head(&fimc->irq_queue); | |
1475 | spin_lock_init(&fimc->slock); | |
1476 | mutex_init(&fimc->lock); | |
1477 | ||
1478 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
eb62d9e9 | 1479 | fimc->regs = devm_ioremap_resource(dev, res); |
f23999ec TR |
1480 | if (IS_ERR(fimc->regs)) |
1481 | return PTR_ERR(fimc->regs); | |
4af81310 SN |
1482 | |
1483 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); | |
1484 | if (res == NULL) { | |
eb62d9e9 | 1485 | dev_err(dev, "Failed to get IRQ resource\n"); |
4af81310 SN |
1486 | return -ENXIO; |
1487 | } | |
1488 | ||
1489 | ret = fimc_lite_clk_get(fimc); | |
1490 | if (ret) | |
1491 | return ret; | |
1492 | ||
eb62d9e9 SN |
1493 | ret = devm_request_irq(dev, res->start, flite_irq_handler, |
1494 | 0, dev_name(dev), fimc); | |
4af81310 | 1495 | if (ret) { |
eb62d9e9 | 1496 | dev_err(dev, "Failed to install irq (%d)\n", ret); |
4af81310 SN |
1497 | goto err_clk; |
1498 | } | |
1499 | ||
1500 | /* The video node will be created within the subdev's registered() op */ | |
1501 | ret = fimc_lite_create_capture_subdev(fimc); | |
1502 | if (ret) | |
1503 | goto err_clk; | |
1504 | ||
1505 | platform_set_drvdata(pdev, fimc); | |
eb62d9e9 SN |
1506 | pm_runtime_enable(dev); |
1507 | ret = pm_runtime_get_sync(dev); | |
4af81310 SN |
1508 | if (ret < 0) |
1509 | goto err_sd; | |
1510 | ||
eb62d9e9 | 1511 | fimc->alloc_ctx = vb2_dma_contig_init_ctx(dev); |
4af81310 SN |
1512 | if (IS_ERR(fimc->alloc_ctx)) { |
1513 | ret = PTR_ERR(fimc->alloc_ctx); | |
1514 | goto err_pm; | |
1515 | } | |
eb62d9e9 | 1516 | pm_runtime_put(dev); |
4af81310 | 1517 | |
eb62d9e9 | 1518 | dev_dbg(dev, "FIMC-LITE.%d registered successfully\n", |
4af81310 SN |
1519 | fimc->index); |
1520 | return 0; | |
1521 | err_pm: | |
eb62d9e9 | 1522 | pm_runtime_put(dev); |
4af81310 SN |
1523 | err_sd: |
1524 | fimc_lite_unregister_capture_subdev(fimc); | |
1525 | err_clk: | |
1526 | fimc_lite_clk_put(fimc); | |
1527 | return ret; | |
1528 | } | |
1529 | ||
1530 | static int fimc_lite_runtime_resume(struct device *dev) | |
1531 | { | |
1532 | struct fimc_lite *fimc = dev_get_drvdata(dev); | |
1533 | ||
1534 | clk_enable(fimc->clock); | |
1535 | return 0; | |
1536 | } | |
1537 | ||
1538 | static int fimc_lite_runtime_suspend(struct device *dev) | |
1539 | { | |
1540 | struct fimc_lite *fimc = dev_get_drvdata(dev); | |
1541 | ||
1542 | clk_disable(fimc->clock); | |
1543 | return 0; | |
1544 | } | |
1545 | ||
1546 | #ifdef CONFIG_PM_SLEEP | |
1547 | static int fimc_lite_resume(struct device *dev) | |
1548 | { | |
1549 | struct fimc_lite *fimc = dev_get_drvdata(dev); | |
1550 | struct flite_buffer *buf; | |
1551 | unsigned long flags; | |
1552 | int i; | |
1553 | ||
1554 | spin_lock_irqsave(&fimc->slock, flags); | |
1555 | if (!test_and_clear_bit(ST_LPM, &fimc->state) || | |
1556 | !test_bit(ST_FLITE_IN_USE, &fimc->state)) { | |
1557 | spin_unlock_irqrestore(&fimc->slock, flags); | |
1558 | return 0; | |
1559 | } | |
1560 | flite_hw_reset(fimc); | |
1561 | spin_unlock_irqrestore(&fimc->slock, flags); | |
1562 | ||
1563 | if (!test_and_clear_bit(ST_FLITE_SUSPENDED, &fimc->state)) | |
1564 | return 0; | |
1565 | ||
1566 | INIT_LIST_HEAD(&fimc->active_buf_q); | |
b9ee31e6 SN |
1567 | fimc_pipeline_call(fimc, open, &fimc->pipeline, |
1568 | &fimc->vfd.entity, false); | |
03878bb4 | 1569 | fimc_lite_hw_init(fimc, atomic_read(&fimc->out_path) == FIMC_IO_ISP); |
4af81310 SN |
1570 | clear_bit(ST_FLITE_SUSPENDED, &fimc->state); |
1571 | ||
1572 | for (i = 0; i < fimc->reqbufs_count; i++) { | |
1573 | if (list_empty(&fimc->pending_buf_q)) | |
1574 | break; | |
1575 | buf = fimc_lite_pending_queue_pop(fimc); | |
1576 | buffer_queue(&buf->vb); | |
1577 | } | |
1578 | return 0; | |
1579 | } | |
1580 | ||
1581 | static int fimc_lite_suspend(struct device *dev) | |
1582 | { | |
1583 | struct fimc_lite *fimc = dev_get_drvdata(dev); | |
1584 | bool suspend = test_bit(ST_FLITE_IN_USE, &fimc->state); | |
1585 | int ret; | |
1586 | ||
1587 | if (test_and_set_bit(ST_LPM, &fimc->state)) | |
1588 | return 0; | |
1589 | ||
1590 | ret = fimc_lite_stop_capture(fimc, suspend); | |
316efab3 | 1591 | if (ret < 0 || !fimc_lite_active(fimc)) |
4af81310 SN |
1592 | return ret; |
1593 | ||
b9ee31e6 | 1594 | return fimc_pipeline_call(fimc, close, &fimc->pipeline); |
4af81310 SN |
1595 | } |
1596 | #endif /* CONFIG_PM_SLEEP */ | |
1597 | ||
4c62e976 | 1598 | static int fimc_lite_remove(struct platform_device *pdev) |
4af81310 SN |
1599 | { |
1600 | struct fimc_lite *fimc = platform_get_drvdata(pdev); | |
1601 | struct device *dev = &pdev->dev; | |
1602 | ||
1603 | pm_runtime_disable(dev); | |
1604 | pm_runtime_set_suspended(dev); | |
1605 | fimc_lite_unregister_capture_subdev(fimc); | |
1606 | vb2_dma_contig_cleanup_ctx(fimc->alloc_ctx); | |
1607 | fimc_lite_clk_put(fimc); | |
1608 | ||
1609 | dev_info(dev, "Driver unloaded\n"); | |
1610 | return 0; | |
1611 | } | |
1612 | ||
eb62d9e9 SN |
1613 | static const struct dev_pm_ops fimc_lite_pm_ops = { |
1614 | SET_SYSTEM_SLEEP_PM_OPS(fimc_lite_suspend, fimc_lite_resume) | |
1615 | SET_RUNTIME_PM_OPS(fimc_lite_runtime_suspend, fimc_lite_runtime_resume, | |
1616 | NULL) | |
1617 | }; | |
1618 | ||
9c8399c8 SN |
1619 | /* EXYNOS4212, EXYNOS4412 */ |
1620 | static struct flite_drvdata fimc_lite_drvdata_exynos4 = { | |
4af81310 SN |
1621 | .max_width = 8192, |
1622 | .max_height = 8192, | |
1623 | .out_width_align = 8, | |
1624 | .win_hor_offs_align = 2, | |
1625 | .out_hor_offs_align = 8, | |
1626 | }; | |
1627 | ||
4af81310 SN |
1628 | static struct platform_device_id fimc_lite_driver_ids[] = { |
1629 | { | |
1630 | .name = "exynos-fimc-lite", | |
1631 | .driver_data = (unsigned long)&fimc_lite_drvdata_exynos4, | |
1632 | }, | |
1633 | { /* sentinel */ }, | |
1634 | }; | |
1635 | MODULE_DEVICE_TABLE(platform, fimc_lite_driver_ids); | |
1636 | ||
eb62d9e9 SN |
1637 | static const struct of_device_id flite_of_match[] = { |
1638 | { | |
1639 | .compatible = "samsung,exynos4212-fimc-lite", | |
1640 | .data = &fimc_lite_drvdata_exynos4, | |
1641 | }, | |
1642 | { /* sentinel */ }, | |
4af81310 | 1643 | }; |
eb62d9e9 | 1644 | MODULE_DEVICE_TABLE(of, flite_of_match); |
4af81310 SN |
1645 | |
1646 | static struct platform_driver fimc_lite_driver = { | |
1647 | .probe = fimc_lite_probe, | |
4c62e976 | 1648 | .remove = fimc_lite_remove, |
4af81310 SN |
1649 | .id_table = fimc_lite_driver_ids, |
1650 | .driver = { | |
eb62d9e9 | 1651 | .of_match_table = flite_of_match, |
4af81310 SN |
1652 | .name = FIMC_LITE_DRV_NAME, |
1653 | .owner = THIS_MODULE, | |
1654 | .pm = &fimc_lite_pm_ops, | |
1655 | } | |
1656 | }; | |
1657 | module_platform_driver(fimc_lite_driver); | |
1658 | MODULE_LICENSE("GPL"); | |
1659 | MODULE_ALIAS("platform:" FIMC_LITE_DRV_NAME); |