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a2c25b44 MH |
1 | /* |
2 | * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/ | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License as | |
6 | * published by the Free Software Foundation version 2. | |
7 | * | |
8 | * This program is distributed WITHOUT ANY WARRANTY of any | |
9 | * kind, whether express or implied; without even the implied warranty | |
10 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | */ | |
13 | #include <linux/kernel.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/module.h> | |
16 | #include <linux/errno.h> | |
17 | #include <linux/interrupt.h> | |
18 | #include <linux/string.h> | |
19 | #include <linux/wait.h> | |
20 | #include <linux/time.h> | |
21 | #include <linux/platform_device.h> | |
22 | #include <linux/irq.h> | |
23 | #include <linux/mm.h> | |
24 | #include <linux/mutex.h> | |
25 | #include <linux/videodev2.h> | |
26 | #include <linux/slab.h> | |
27 | ||
28 | #include <asm/pgtable.h> | |
29 | #include <mach/cputype.h> | |
30 | ||
31 | #include <media/v4l2-dev.h> | |
32 | #include <media/v4l2-common.h> | |
33 | #include <media/v4l2-ioctl.h> | |
34 | #include <media/v4l2-device.h> | |
35 | #include <media/davinci/vpbe_display.h> | |
36 | #include <media/davinci/vpbe_types.h> | |
37 | #include <media/davinci/vpbe.h> | |
38 | #include <media/davinci/vpbe_venc.h> | |
39 | #include <media/davinci/vpbe_osd.h> | |
40 | #include "vpbe_venc_regs.h" | |
41 | ||
42 | #define VPBE_DISPLAY_DRIVER "vpbe-v4l2" | |
43 | ||
44 | static int debug; | |
45 | ||
a2c25b44 MH |
46 | #define VPBE_DEFAULT_NUM_BUFS 3 |
47 | ||
48 | module_param(debug, int, 0644); | |
49 | ||
50 | static int venc_is_second_field(struct vpbe_display *disp_dev) | |
51 | { | |
52 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
53 | int ret; | |
54 | int val; | |
55 | ||
56 | ret = v4l2_subdev_call(vpbe_dev->venc, | |
57 | core, | |
58 | ioctl, | |
59 | VENC_GET_FLD, | |
60 | &val); | |
61 | if (ret < 0) { | |
62 | v4l2_err(&vpbe_dev->v4l2_dev, | |
63 | "Error in getting Field ID 0\n"); | |
64 | } | |
65 | return val; | |
66 | } | |
67 | ||
68 | static void vpbe_isr_even_field(struct vpbe_display *disp_obj, | |
69 | struct vpbe_layer *layer) | |
70 | { | |
71 | struct timespec timevalue; | |
72 | ||
73 | if (layer->cur_frm == layer->next_frm) | |
74 | return; | |
75 | ktime_get_ts(&timevalue); | |
76 | layer->cur_frm->ts.tv_sec = timevalue.tv_sec; | |
77 | layer->cur_frm->ts.tv_usec = timevalue.tv_nsec / NSEC_PER_USEC; | |
78 | layer->cur_frm->state = VIDEOBUF_DONE; | |
79 | wake_up_interruptible(&layer->cur_frm->done); | |
80 | /* Make cur_frm pointing to next_frm */ | |
81 | layer->cur_frm = layer->next_frm; | |
82 | } | |
83 | ||
84 | static void vpbe_isr_odd_field(struct vpbe_display *disp_obj, | |
85 | struct vpbe_layer *layer) | |
86 | { | |
87 | struct osd_state *osd_device = disp_obj->osd_device; | |
88 | unsigned long addr; | |
89 | ||
90 | spin_lock(&disp_obj->dma_queue_lock); | |
91 | if (list_empty(&layer->dma_queue) || | |
92 | (layer->cur_frm != layer->next_frm)) { | |
93 | spin_unlock(&disp_obj->dma_queue_lock); | |
94 | return; | |
95 | } | |
96 | /* | |
97 | * one field is displayed configure | |
98 | * the next frame if it is available | |
99 | * otherwise hold on current frame | |
100 | * Get next from the buffer queue | |
101 | */ | |
102 | layer->next_frm = list_entry( | |
103 | layer->dma_queue.next, | |
104 | struct videobuf_buffer, | |
105 | queue); | |
106 | /* Remove that from the buffer queue */ | |
107 | list_del(&layer->next_frm->queue); | |
108 | spin_unlock(&disp_obj->dma_queue_lock); | |
109 | /* Mark state of the frame to active */ | |
110 | layer->next_frm->state = VIDEOBUF_ACTIVE; | |
111 | addr = videobuf_to_dma_contig(layer->next_frm); | |
112 | osd_device->ops.start_layer(osd_device, | |
113 | layer->layer_info.id, | |
114 | addr, | |
115 | disp_obj->cbcr_ofst); | |
116 | } | |
117 | ||
118 | /* interrupt service routine */ | |
119 | static irqreturn_t venc_isr(int irq, void *arg) | |
120 | { | |
121 | struct vpbe_display *disp_dev = (struct vpbe_display *)arg; | |
122 | struct vpbe_layer *layer; | |
123 | static unsigned last_event; | |
124 | unsigned event = 0; | |
125 | int fid; | |
126 | int i; | |
127 | ||
128 | if ((NULL == arg) || (NULL == disp_dev->dev[0])) | |
129 | return IRQ_HANDLED; | |
130 | ||
131 | if (venc_is_second_field(disp_dev)) | |
132 | event |= VENC_SECOND_FIELD; | |
133 | else | |
134 | event |= VENC_FIRST_FIELD; | |
135 | ||
136 | if (event == (last_event & ~VENC_END_OF_FRAME)) { | |
137 | /* | |
138 | * If the display is non-interlaced, then we need to flag the | |
139 | * end-of-frame event at every interrupt regardless of the | |
140 | * value of the FIDST bit. We can conclude that the display is | |
141 | * non-interlaced if the value of the FIDST bit is unchanged | |
142 | * from the previous interrupt. | |
143 | */ | |
144 | event |= VENC_END_OF_FRAME; | |
145 | } else if (event == VENC_SECOND_FIELD) { | |
146 | /* end-of-frame for interlaced display */ | |
147 | event |= VENC_END_OF_FRAME; | |
148 | } | |
149 | last_event = event; | |
150 | ||
151 | for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { | |
152 | layer = disp_dev->dev[i]; | |
153 | /* If streaming is started in this layer */ | |
154 | if (!layer->started) | |
155 | continue; | |
156 | ||
157 | if (layer->layer_first_int) { | |
158 | layer->layer_first_int = 0; | |
159 | continue; | |
160 | } | |
161 | /* Check the field format */ | |
162 | if ((V4L2_FIELD_NONE == layer->pix_fmt.field) && | |
163 | (event & VENC_END_OF_FRAME)) { | |
164 | /* Progressive mode */ | |
165 | ||
166 | vpbe_isr_even_field(disp_dev, layer); | |
167 | vpbe_isr_odd_field(disp_dev, layer); | |
168 | } else { | |
169 | /* Interlaced mode */ | |
170 | ||
171 | layer->field_id ^= 1; | |
172 | if (event & VENC_FIRST_FIELD) | |
173 | fid = 0; | |
174 | else | |
175 | fid = 1; | |
176 | ||
177 | /* | |
178 | * If field id does not match with store | |
179 | * field id | |
180 | */ | |
181 | if (fid != layer->field_id) { | |
182 | /* Make them in sync */ | |
183 | layer->field_id = fid; | |
184 | continue; | |
185 | } | |
186 | /* | |
187 | * device field id and local field id are | |
188 | * in sync. If this is even field | |
189 | */ | |
190 | if (0 == fid) | |
191 | vpbe_isr_even_field(disp_dev, layer); | |
192 | else /* odd field */ | |
193 | vpbe_isr_odd_field(disp_dev, layer); | |
194 | } | |
195 | } | |
196 | ||
197 | return IRQ_HANDLED; | |
198 | } | |
199 | ||
200 | /* | |
201 | * vpbe_buffer_prepare() | |
202 | * This is the callback function called from videobuf_qbuf() function | |
203 | * the buffer is prepared and user space virtual address is converted into | |
204 | * physical address | |
205 | */ | |
206 | static int vpbe_buffer_prepare(struct videobuf_queue *q, | |
207 | struct videobuf_buffer *vb, | |
208 | enum v4l2_field field) | |
209 | { | |
210 | struct vpbe_fh *fh = q->priv_data; | |
211 | struct vpbe_layer *layer = fh->layer; | |
212 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
213 | unsigned long addr; | |
214 | int ret; | |
215 | ||
216 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
217 | "vpbe_buffer_prepare\n"); | |
218 | ||
219 | /* If buffer is not initialized, initialize it */ | |
220 | if (VIDEOBUF_NEEDS_INIT == vb->state) { | |
221 | vb->width = layer->pix_fmt.width; | |
222 | vb->height = layer->pix_fmt.height; | |
223 | vb->size = layer->pix_fmt.sizeimage; | |
224 | vb->field = field; | |
225 | ||
226 | ret = videobuf_iolock(q, vb, NULL); | |
227 | if (ret < 0) { | |
228 | v4l2_err(&vpbe_dev->v4l2_dev, "Failed to map \ | |
229 | user address\n"); | |
230 | return -EINVAL; | |
231 | } | |
232 | ||
233 | addr = videobuf_to_dma_contig(vb); | |
234 | ||
235 | if (q->streaming) { | |
236 | if (!IS_ALIGNED(addr, 8)) { | |
237 | v4l2_err(&vpbe_dev->v4l2_dev, | |
238 | "buffer_prepare:offset is \ | |
239 | not aligned to 32 bytes\n"); | |
240 | return -EINVAL; | |
241 | } | |
242 | } | |
243 | vb->state = VIDEOBUF_PREPARED; | |
244 | } | |
245 | return 0; | |
246 | } | |
247 | ||
248 | /* | |
249 | * vpbe_buffer_setup() | |
250 | * This function allocates memory for the buffers | |
251 | */ | |
252 | static int vpbe_buffer_setup(struct videobuf_queue *q, | |
253 | unsigned int *count, | |
254 | unsigned int *size) | |
255 | { | |
256 | /* Get the file handle object and layer object */ | |
257 | struct vpbe_fh *fh = q->priv_data; | |
258 | struct vpbe_layer *layer = fh->layer; | |
259 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
260 | ||
261 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_buffer_setup\n"); | |
262 | ||
263 | *size = layer->pix_fmt.sizeimage; | |
264 | ||
265 | /* Store number of buffers allocated in numbuffer member */ | |
266 | if (*count < VPBE_DEFAULT_NUM_BUFS) | |
267 | *count = layer->numbuffers = VPBE_DEFAULT_NUM_BUFS; | |
268 | ||
269 | return 0; | |
270 | } | |
271 | ||
272 | /* | |
273 | * vpbe_buffer_queue() | |
274 | * This function adds the buffer to DMA queue | |
275 | */ | |
276 | static void vpbe_buffer_queue(struct videobuf_queue *q, | |
277 | struct videobuf_buffer *vb) | |
278 | { | |
279 | /* Get the file handle object and layer object */ | |
280 | struct vpbe_fh *fh = q->priv_data; | |
281 | struct vpbe_layer *layer = fh->layer; | |
282 | struct vpbe_display *disp = fh->disp_dev; | |
283 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
284 | unsigned long flags; | |
285 | ||
286 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
287 | "vpbe_buffer_queue\n"); | |
288 | ||
289 | /* add the buffer to the DMA queue */ | |
290 | spin_lock_irqsave(&disp->dma_queue_lock, flags); | |
291 | list_add_tail(&vb->queue, &layer->dma_queue); | |
292 | spin_unlock_irqrestore(&disp->dma_queue_lock, flags); | |
293 | /* Change state of the buffer */ | |
294 | vb->state = VIDEOBUF_QUEUED; | |
295 | } | |
296 | ||
297 | /* | |
298 | * vpbe_buffer_release() | |
299 | * This function is called from the videobuf layer to free memory allocated to | |
300 | * the buffers | |
301 | */ | |
302 | static void vpbe_buffer_release(struct videobuf_queue *q, | |
303 | struct videobuf_buffer *vb) | |
304 | { | |
305 | /* Get the file handle object and layer object */ | |
306 | struct vpbe_fh *fh = q->priv_data; | |
307 | struct vpbe_layer *layer = fh->layer; | |
308 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
309 | ||
310 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
311 | "vpbe_buffer_release\n"); | |
312 | ||
313 | if (V4L2_MEMORY_USERPTR != layer->memory) | |
314 | videobuf_dma_contig_free(q, vb); | |
315 | ||
316 | vb->state = VIDEOBUF_NEEDS_INIT; | |
317 | } | |
318 | ||
319 | static struct videobuf_queue_ops video_qops = { | |
320 | .buf_setup = vpbe_buffer_setup, | |
321 | .buf_prepare = vpbe_buffer_prepare, | |
322 | .buf_queue = vpbe_buffer_queue, | |
323 | .buf_release = vpbe_buffer_release, | |
324 | }; | |
325 | ||
326 | static | |
327 | struct vpbe_layer* | |
328 | _vpbe_display_get_other_win_layer(struct vpbe_display *disp_dev, | |
329 | struct vpbe_layer *layer) | |
330 | { | |
331 | enum vpbe_display_device_id thiswin, otherwin; | |
332 | thiswin = layer->device_id; | |
333 | ||
334 | otherwin = (thiswin == VPBE_DISPLAY_DEVICE_0) ? | |
335 | VPBE_DISPLAY_DEVICE_1 : VPBE_DISPLAY_DEVICE_0; | |
336 | return disp_dev->dev[otherwin]; | |
337 | } | |
338 | ||
339 | static int vpbe_set_osd_display_params(struct vpbe_display *disp_dev, | |
340 | struct vpbe_layer *layer) | |
341 | { | |
342 | struct osd_layer_config *cfg = &layer->layer_info.config; | |
343 | struct osd_state *osd_device = disp_dev->osd_device; | |
344 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
345 | unsigned long addr; | |
346 | int ret; | |
347 | ||
348 | addr = videobuf_to_dma_contig(layer->cur_frm); | |
349 | /* Set address in the display registers */ | |
350 | osd_device->ops.start_layer(osd_device, | |
351 | layer->layer_info.id, | |
352 | addr, | |
353 | disp_dev->cbcr_ofst); | |
354 | ||
355 | ret = osd_device->ops.enable_layer(osd_device, | |
356 | layer->layer_info.id, 0); | |
357 | if (ret < 0) { | |
358 | v4l2_err(&vpbe_dev->v4l2_dev, | |
359 | "Error in enabling osd window layer 0\n"); | |
360 | return -1; | |
361 | } | |
362 | ||
363 | /* Enable the window */ | |
364 | layer->layer_info.enable = 1; | |
365 | if (cfg->pixfmt == PIXFMT_NV12) { | |
366 | struct vpbe_layer *otherlayer = | |
367 | _vpbe_display_get_other_win_layer(disp_dev, layer); | |
368 | ||
369 | ret = osd_device->ops.enable_layer(osd_device, | |
370 | otherlayer->layer_info.id, 1); | |
371 | if (ret < 0) { | |
372 | v4l2_err(&vpbe_dev->v4l2_dev, | |
373 | "Error in enabling osd window layer 1\n"); | |
374 | return -1; | |
375 | } | |
376 | otherlayer->layer_info.enable = 1; | |
377 | } | |
378 | return 0; | |
379 | } | |
380 | ||
381 | static void | |
382 | vpbe_disp_calculate_scale_factor(struct vpbe_display *disp_dev, | |
383 | struct vpbe_layer *layer, | |
384 | int expected_xsize, int expected_ysize) | |
385 | { | |
386 | struct display_layer_info *layer_info = &layer->layer_info; | |
387 | struct v4l2_pix_format *pixfmt = &layer->pix_fmt; | |
388 | struct osd_layer_config *cfg = &layer->layer_info.config; | |
389 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
390 | int calculated_xsize; | |
391 | int h_exp = 0; | |
392 | int v_exp = 0; | |
393 | int h_scale; | |
394 | int v_scale; | |
395 | ||
396 | v4l2_std_id standard_id = vpbe_dev->current_timings.timings.std_id; | |
397 | ||
398 | /* | |
399 | * Application initially set the image format. Current display | |
400 | * size is obtained from the vpbe display controller. expected_xsize | |
401 | * and expected_ysize are set through S_CROP ioctl. Based on this, | |
402 | * driver will calculate the scale factors for vertical and | |
403 | * horizontal direction so that the image is displayed scaled | |
404 | * and expanded. Application uses expansion to display the image | |
405 | * in a square pixel. Otherwise it is displayed using displays | |
406 | * pixel aspect ratio.It is expected that application chooses | |
407 | * the crop coordinates for cropped or scaled display. if crop | |
408 | * size is less than the image size, it is displayed cropped or | |
409 | * it is displayed scaled and/or expanded. | |
410 | * | |
411 | * to begin with, set the crop window same as expected. Later we | |
412 | * will override with scaled window size | |
413 | */ | |
414 | ||
415 | cfg->xsize = pixfmt->width; | |
416 | cfg->ysize = pixfmt->height; | |
417 | layer_info->h_zoom = ZOOM_X1; /* no horizontal zoom */ | |
418 | layer_info->v_zoom = ZOOM_X1; /* no horizontal zoom */ | |
419 | layer_info->h_exp = H_EXP_OFF; /* no horizontal zoom */ | |
420 | layer_info->v_exp = V_EXP_OFF; /* no horizontal zoom */ | |
421 | ||
422 | if (pixfmt->width < expected_xsize) { | |
423 | h_scale = vpbe_dev->current_timings.xres / pixfmt->width; | |
424 | if (h_scale < 2) | |
425 | h_scale = 1; | |
426 | else if (h_scale >= 4) | |
427 | h_scale = 4; | |
428 | else | |
429 | h_scale = 2; | |
430 | cfg->xsize *= h_scale; | |
431 | if (cfg->xsize < expected_xsize) { | |
432 | if ((standard_id & V4L2_STD_525_60) || | |
433 | (standard_id & V4L2_STD_625_50)) { | |
434 | calculated_xsize = (cfg->xsize * | |
435 | VPBE_DISPLAY_H_EXP_RATIO_N) / | |
436 | VPBE_DISPLAY_H_EXP_RATIO_D; | |
437 | if (calculated_xsize <= expected_xsize) { | |
438 | h_exp = 1; | |
439 | cfg->xsize = calculated_xsize; | |
440 | } | |
441 | } | |
442 | } | |
443 | if (h_scale == 2) | |
444 | layer_info->h_zoom = ZOOM_X2; | |
445 | else if (h_scale == 4) | |
446 | layer_info->h_zoom = ZOOM_X4; | |
447 | if (h_exp) | |
448 | layer_info->h_exp = H_EXP_9_OVER_8; | |
449 | } else { | |
450 | /* no scaling, only cropping. Set display area to crop area */ | |
451 | cfg->xsize = expected_xsize; | |
452 | } | |
453 | ||
454 | if (pixfmt->height < expected_ysize) { | |
455 | v_scale = expected_ysize / pixfmt->height; | |
456 | if (v_scale < 2) | |
457 | v_scale = 1; | |
458 | else if (v_scale >= 4) | |
459 | v_scale = 4; | |
460 | else | |
461 | v_scale = 2; | |
462 | cfg->ysize *= v_scale; | |
463 | if (cfg->ysize < expected_ysize) { | |
464 | if ((standard_id & V4L2_STD_625_50)) { | |
465 | calculated_xsize = (cfg->ysize * | |
466 | VPBE_DISPLAY_V_EXP_RATIO_N) / | |
467 | VPBE_DISPLAY_V_EXP_RATIO_D; | |
468 | if (calculated_xsize <= expected_ysize) { | |
469 | v_exp = 1; | |
470 | cfg->ysize = calculated_xsize; | |
471 | } | |
472 | } | |
473 | } | |
474 | if (v_scale == 2) | |
475 | layer_info->v_zoom = ZOOM_X2; | |
476 | else if (v_scale == 4) | |
477 | layer_info->v_zoom = ZOOM_X4; | |
478 | if (v_exp) | |
479 | layer_info->h_exp = V_EXP_6_OVER_5; | |
480 | } else { | |
481 | /* no scaling, only cropping. Set display area to crop area */ | |
482 | cfg->ysize = expected_ysize; | |
483 | } | |
484 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
485 | "crop display xsize = %d, ysize = %d\n", | |
486 | cfg->xsize, cfg->ysize); | |
487 | } | |
488 | ||
489 | static void vpbe_disp_adj_position(struct vpbe_display *disp_dev, | |
490 | struct vpbe_layer *layer, | |
491 | int top, int left) | |
492 | { | |
493 | struct osd_layer_config *cfg = &layer->layer_info.config; | |
494 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
495 | ||
496 | cfg->xpos = min((unsigned int)left, | |
497 | vpbe_dev->current_timings.xres - cfg->xsize); | |
498 | cfg->ypos = min((unsigned int)top, | |
499 | vpbe_dev->current_timings.yres - cfg->ysize); | |
500 | ||
501 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
502 | "new xpos = %d, ypos = %d\n", | |
503 | cfg->xpos, cfg->ypos); | |
504 | } | |
505 | ||
506 | static void vpbe_disp_check_window_params(struct vpbe_display *disp_dev, | |
507 | struct v4l2_rect *c) | |
508 | { | |
509 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
510 | ||
511 | if ((c->width == 0) || | |
512 | ((c->width + c->left) > vpbe_dev->current_timings.xres)) | |
513 | c->width = vpbe_dev->current_timings.xres - c->left; | |
514 | ||
515 | if ((c->height == 0) || ((c->height + c->top) > | |
516 | vpbe_dev->current_timings.yres)) | |
517 | c->height = vpbe_dev->current_timings.yres - c->top; | |
518 | ||
519 | /* window height must be even for interlaced display */ | |
520 | if (vpbe_dev->current_timings.interlaced) | |
521 | c->height &= (~0x01); | |
522 | ||
523 | } | |
524 | ||
525 | /** | |
526 | * vpbe_try_format() | |
527 | * If user application provides width and height, and have bytesperline set | |
528 | * to zero, driver calculates bytesperline and sizeimage based on hardware | |
529 | * limits. | |
530 | */ | |
531 | static int vpbe_try_format(struct vpbe_display *disp_dev, | |
532 | struct v4l2_pix_format *pixfmt, int check) | |
533 | { | |
534 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
535 | int min_height = 1; | |
536 | int min_width = 32; | |
537 | int max_height; | |
538 | int max_width; | |
539 | int bpp; | |
540 | ||
541 | if ((pixfmt->pixelformat != V4L2_PIX_FMT_UYVY) && | |
542 | (pixfmt->pixelformat != V4L2_PIX_FMT_NV12)) | |
543 | /* choose default as V4L2_PIX_FMT_UYVY */ | |
544 | pixfmt->pixelformat = V4L2_PIX_FMT_UYVY; | |
545 | ||
546 | /* Check the field format */ | |
547 | if ((pixfmt->field != V4L2_FIELD_INTERLACED) && | |
548 | (pixfmt->field != V4L2_FIELD_NONE)) { | |
549 | if (vpbe_dev->current_timings.interlaced) | |
550 | pixfmt->field = V4L2_FIELD_INTERLACED; | |
551 | else | |
552 | pixfmt->field = V4L2_FIELD_NONE; | |
553 | } | |
554 | ||
555 | if (pixfmt->field == V4L2_FIELD_INTERLACED) | |
556 | min_height = 2; | |
557 | ||
558 | if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) | |
559 | bpp = 1; | |
560 | else | |
561 | bpp = 2; | |
562 | ||
563 | max_width = vpbe_dev->current_timings.xres; | |
564 | max_height = vpbe_dev->current_timings.yres; | |
565 | ||
566 | min_width /= bpp; | |
567 | ||
568 | if (!pixfmt->width || (pixfmt->width < min_width) || | |
569 | (pixfmt->width > max_width)) { | |
570 | pixfmt->width = vpbe_dev->current_timings.xres; | |
571 | } | |
572 | ||
573 | if (!pixfmt->height || (pixfmt->height < min_height) || | |
574 | (pixfmt->height > max_height)) { | |
575 | pixfmt->height = vpbe_dev->current_timings.yres; | |
576 | } | |
577 | ||
578 | if (pixfmt->bytesperline < (pixfmt->width * bpp)) | |
579 | pixfmt->bytesperline = pixfmt->width * bpp; | |
580 | ||
581 | /* Make the bytesperline 32 byte aligned */ | |
582 | pixfmt->bytesperline = ((pixfmt->width * bpp + 31) & ~31); | |
583 | ||
584 | if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) | |
585 | pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height + | |
586 | (pixfmt->bytesperline * pixfmt->height >> 1); | |
587 | else | |
588 | pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; | |
589 | ||
590 | return 0; | |
591 | } | |
592 | ||
593 | static int vpbe_display_g_priority(struct file *file, void *priv, | |
594 | enum v4l2_priority *p) | |
595 | { | |
596 | struct vpbe_fh *fh = file->private_data; | |
597 | struct vpbe_layer *layer = fh->layer; | |
598 | ||
599 | *p = v4l2_prio_max(&layer->prio); | |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
604 | static int vpbe_display_s_priority(struct file *file, void *priv, | |
605 | enum v4l2_priority p) | |
606 | { | |
607 | struct vpbe_fh *fh = file->private_data; | |
608 | struct vpbe_layer *layer = fh->layer; | |
609 | int ret; | |
610 | ||
611 | ret = v4l2_prio_change(&layer->prio, &fh->prio, p); | |
612 | ||
613 | return ret; | |
614 | } | |
615 | ||
616 | static int vpbe_display_querycap(struct file *file, void *priv, | |
617 | struct v4l2_capability *cap) | |
618 | { | |
619 | struct vpbe_fh *fh = file->private_data; | |
620 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
621 | ||
622 | cap->version = VPBE_DISPLAY_VERSION_CODE; | |
623 | cap->capabilities = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING; | |
624 | strlcpy(cap->driver, VPBE_DISPLAY_DRIVER, sizeof(cap->driver)); | |
625 | strlcpy(cap->bus_info, "platform", sizeof(cap->bus_info)); | |
626 | strlcpy(cap->card, vpbe_dev->cfg->module_name, sizeof(cap->card)); | |
627 | ||
628 | return 0; | |
629 | } | |
630 | ||
631 | static int vpbe_display_s_crop(struct file *file, void *priv, | |
632 | struct v4l2_crop *crop) | |
633 | { | |
634 | struct vpbe_fh *fh = file->private_data; | |
635 | struct vpbe_layer *layer = fh->layer; | |
636 | struct vpbe_display *disp_dev = fh->disp_dev; | |
637 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
638 | struct osd_layer_config *cfg = &layer->layer_info.config; | |
639 | struct osd_state *osd_device = disp_dev->osd_device; | |
640 | struct v4l2_rect *rect = &crop->c; | |
641 | int ret; | |
642 | ||
643 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
644 | "VIDIOC_S_CROP, layer id = %d\n", layer->device_id); | |
645 | ||
646 | if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) { | |
647 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buf type\n"); | |
648 | return -EINVAL; | |
649 | } | |
650 | ||
651 | if (rect->top < 0) | |
652 | rect->top = 0; | |
653 | if (rect->left < 0) | |
654 | rect->left = 0; | |
655 | ||
656 | vpbe_disp_check_window_params(disp_dev, rect); | |
657 | ||
658 | osd_device->ops.get_layer_config(osd_device, | |
659 | layer->layer_info.id, cfg); | |
660 | ||
661 | vpbe_disp_calculate_scale_factor(disp_dev, layer, | |
662 | rect->width, | |
663 | rect->height); | |
664 | vpbe_disp_adj_position(disp_dev, layer, rect->top, | |
665 | rect->left); | |
666 | ret = osd_device->ops.set_layer_config(osd_device, | |
667 | layer->layer_info.id, cfg); | |
668 | if (ret < 0) { | |
669 | v4l2_err(&vpbe_dev->v4l2_dev, | |
670 | "Error in set layer config:\n"); | |
671 | return -EINVAL; | |
672 | } | |
673 | ||
674 | /* apply zooming and h or v expansion */ | |
675 | osd_device->ops.set_zoom(osd_device, | |
676 | layer->layer_info.id, | |
677 | layer->layer_info.h_zoom, | |
678 | layer->layer_info.v_zoom); | |
679 | ret = osd_device->ops.set_vid_expansion(osd_device, | |
680 | layer->layer_info.h_exp, | |
681 | layer->layer_info.v_exp); | |
682 | if (ret < 0) { | |
683 | v4l2_err(&vpbe_dev->v4l2_dev, | |
684 | "Error in set vid expansion:\n"); | |
685 | return -EINVAL; | |
686 | } | |
687 | ||
688 | if ((layer->layer_info.h_zoom != ZOOM_X1) || | |
689 | (layer->layer_info.v_zoom != ZOOM_X1) || | |
690 | (layer->layer_info.h_exp != H_EXP_OFF) || | |
691 | (layer->layer_info.v_exp != V_EXP_OFF)) | |
692 | /* Enable expansion filter */ | |
693 | osd_device->ops.set_interpolation_filter(osd_device, 1); | |
694 | else | |
695 | osd_device->ops.set_interpolation_filter(osd_device, 0); | |
696 | ||
697 | return 0; | |
698 | } | |
699 | ||
700 | static int vpbe_display_g_crop(struct file *file, void *priv, | |
701 | struct v4l2_crop *crop) | |
702 | { | |
703 | struct vpbe_fh *fh = file->private_data; | |
704 | struct vpbe_layer *layer = fh->layer; | |
705 | struct osd_layer_config *cfg = &layer->layer_info.config; | |
706 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
707 | struct osd_state *osd_device = fh->disp_dev->osd_device; | |
708 | struct v4l2_rect *rect = &crop->c; | |
709 | int ret; | |
710 | ||
711 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
712 | "VIDIOC_G_CROP, layer id = %d\n", | |
713 | layer->device_id); | |
714 | ||
715 | if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) { | |
716 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buf type\n"); | |
717 | ret = -EINVAL; | |
718 | } | |
719 | osd_device->ops.get_layer_config(osd_device, | |
720 | layer->layer_info.id, cfg); | |
721 | rect->top = cfg->ypos; | |
722 | rect->left = cfg->xpos; | |
723 | rect->width = cfg->xsize; | |
724 | rect->height = cfg->ysize; | |
725 | ||
726 | return 0; | |
727 | } | |
728 | ||
729 | static int vpbe_display_cropcap(struct file *file, void *priv, | |
730 | struct v4l2_cropcap *cropcap) | |
731 | { | |
732 | struct vpbe_fh *fh = file->private_data; | |
733 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
734 | ||
735 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_CROPCAP ioctl\n"); | |
736 | ||
737 | cropcap->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
738 | cropcap->bounds.left = 0; | |
739 | cropcap->bounds.top = 0; | |
740 | cropcap->bounds.width = vpbe_dev->current_timings.xres; | |
741 | cropcap->bounds.height = vpbe_dev->current_timings.yres; | |
742 | cropcap->pixelaspect = vpbe_dev->current_timings.aspect; | |
743 | cropcap->defrect = cropcap->bounds; | |
744 | return 0; | |
745 | } | |
746 | ||
747 | static int vpbe_display_g_fmt(struct file *file, void *priv, | |
748 | struct v4l2_format *fmt) | |
749 | { | |
750 | struct vpbe_fh *fh = file->private_data; | |
751 | struct vpbe_layer *layer = fh->layer; | |
752 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
753 | ||
754 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
755 | "VIDIOC_G_FMT, layer id = %d\n", | |
756 | layer->device_id); | |
757 | ||
758 | /* If buffer type is video output */ | |
759 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != fmt->type) { | |
760 | v4l2_err(&vpbe_dev->v4l2_dev, "invalid type\n"); | |
761 | return -EINVAL; | |
762 | } | |
763 | /* Fill in the information about format */ | |
764 | fmt->fmt.pix = layer->pix_fmt; | |
765 | ||
766 | return 0; | |
767 | } | |
768 | ||
769 | static int vpbe_display_enum_fmt(struct file *file, void *priv, | |
770 | struct v4l2_fmtdesc *fmt) | |
771 | { | |
772 | struct vpbe_fh *fh = file->private_data; | |
773 | struct vpbe_layer *layer = fh->layer; | |
774 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
775 | unsigned int index = 0; | |
776 | ||
777 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
778 | "VIDIOC_ENUM_FMT, layer id = %d\n", | |
779 | layer->device_id); | |
780 | if (fmt->index > 1) { | |
781 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid format index\n"); | |
782 | return -EINVAL; | |
783 | } | |
784 | ||
785 | /* Fill in the information about format */ | |
786 | index = fmt->index; | |
787 | memset(fmt, 0, sizeof(*fmt)); | |
788 | fmt->index = index; | |
789 | fmt->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
790 | if (index == 0) { | |
791 | strcpy(fmt->description, "YUV 4:2:2 - UYVY"); | |
792 | fmt->pixelformat = V4L2_PIX_FMT_UYVY; | |
793 | } else { | |
794 | strcpy(fmt->description, "Y/CbCr 4:2:0"); | |
795 | fmt->pixelformat = V4L2_PIX_FMT_NV12; | |
796 | } | |
797 | ||
798 | return 0; | |
799 | } | |
800 | ||
801 | static int vpbe_display_s_fmt(struct file *file, void *priv, | |
802 | struct v4l2_format *fmt) | |
803 | { | |
804 | struct vpbe_fh *fh = file->private_data; | |
805 | struct vpbe_layer *layer = fh->layer; | |
806 | struct vpbe_display *disp_dev = fh->disp_dev; | |
807 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
808 | struct osd_layer_config *cfg = &layer->layer_info.config; | |
809 | struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; | |
810 | struct osd_state *osd_device = disp_dev->osd_device; | |
811 | int ret; | |
812 | ||
813 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
814 | "VIDIOC_S_FMT, layer id = %d\n", | |
815 | layer->device_id); | |
816 | ||
817 | /* If streaming is started, return error */ | |
818 | if (layer->started) { | |
819 | v4l2_err(&vpbe_dev->v4l2_dev, "Streaming is started\n"); | |
820 | return -EBUSY; | |
821 | } | |
822 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != fmt->type) { | |
823 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "invalid type\n"); | |
824 | return -EINVAL; | |
825 | } | |
826 | /* Check for valid pixel format */ | |
827 | ret = vpbe_try_format(disp_dev, pixfmt, 1); | |
828 | if (ret) | |
829 | return ret; | |
830 | ||
831 | /* YUV420 is requested, check availability of the | |
832 | other video window */ | |
833 | ||
834 | layer->pix_fmt = *pixfmt; | |
835 | ||
836 | /* Get osd layer config */ | |
837 | osd_device->ops.get_layer_config(osd_device, | |
838 | layer->layer_info.id, cfg); | |
839 | /* Store the pixel format in the layer object */ | |
840 | cfg->xsize = pixfmt->width; | |
841 | cfg->ysize = pixfmt->height; | |
842 | cfg->line_length = pixfmt->bytesperline; | |
843 | cfg->ypos = 0; | |
844 | cfg->xpos = 0; | |
845 | cfg->interlaced = vpbe_dev->current_timings.interlaced; | |
846 | ||
847 | if (V4L2_PIX_FMT_UYVY == pixfmt->pixelformat) | |
848 | cfg->pixfmt = PIXFMT_YCbCrI; | |
849 | ||
850 | /* Change of the default pixel format for both video windows */ | |
851 | if (V4L2_PIX_FMT_NV12 == pixfmt->pixelformat) { | |
852 | struct vpbe_layer *otherlayer; | |
853 | cfg->pixfmt = PIXFMT_NV12; | |
854 | otherlayer = _vpbe_display_get_other_win_layer(disp_dev, | |
855 | layer); | |
856 | otherlayer->layer_info.config.pixfmt = PIXFMT_NV12; | |
857 | } | |
858 | ||
859 | /* Set the layer config in the osd window */ | |
860 | ret = osd_device->ops.set_layer_config(osd_device, | |
861 | layer->layer_info.id, cfg); | |
862 | if (ret < 0) { | |
863 | v4l2_err(&vpbe_dev->v4l2_dev, | |
864 | "Error in S_FMT params:\n"); | |
865 | return -EINVAL; | |
866 | } | |
867 | ||
868 | /* Readback and fill the local copy of current pix format */ | |
869 | osd_device->ops.get_layer_config(osd_device, | |
870 | layer->layer_info.id, cfg); | |
871 | ||
872 | return 0; | |
873 | } | |
874 | ||
875 | static int vpbe_display_try_fmt(struct file *file, void *priv, | |
876 | struct v4l2_format *fmt) | |
877 | { | |
878 | struct vpbe_fh *fh = file->private_data; | |
879 | struct vpbe_display *disp_dev = fh->disp_dev; | |
880 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
881 | struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; | |
882 | ||
883 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_TRY_FMT\n"); | |
884 | ||
885 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != fmt->type) { | |
886 | v4l2_err(&vpbe_dev->v4l2_dev, "invalid type\n"); | |
887 | return -EINVAL; | |
888 | } | |
889 | ||
890 | /* Check for valid field format */ | |
891 | return vpbe_try_format(disp_dev, pixfmt, 0); | |
892 | ||
893 | } | |
894 | ||
895 | /** | |
896 | * vpbe_display_s_std - Set the given standard in the encoder | |
897 | * | |
898 | * Sets the standard if supported by the current encoder. Return the status. | |
899 | * 0 - success & -EINVAL on error | |
900 | */ | |
901 | static int vpbe_display_s_std(struct file *file, void *priv, | |
902 | v4l2_std_id *std_id) | |
903 | { | |
904 | struct vpbe_fh *fh = priv; | |
905 | struct vpbe_layer *layer = fh->layer; | |
906 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
907 | int ret; | |
908 | ||
909 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_S_STD\n"); | |
910 | ||
911 | /* If streaming is started, return error */ | |
912 | if (layer->started) { | |
913 | v4l2_err(&vpbe_dev->v4l2_dev, "Streaming is started\n"); | |
914 | return -EBUSY; | |
915 | } | |
916 | if (NULL != vpbe_dev->ops.s_std) { | |
917 | ret = vpbe_dev->ops.s_std(vpbe_dev, std_id); | |
918 | if (ret) { | |
919 | v4l2_err(&vpbe_dev->v4l2_dev, | |
920 | "Failed to set standard for sub devices\n"); | |
921 | return -EINVAL; | |
922 | } | |
923 | } else { | |
924 | return -EINVAL; | |
925 | } | |
926 | ||
927 | return 0; | |
928 | } | |
929 | ||
930 | /** | |
931 | * vpbe_display_g_std - Get the standard in the current encoder | |
932 | * | |
933 | * Get the standard in the current encoder. Return the status. 0 - success | |
934 | * -EINVAL on error | |
935 | */ | |
936 | static int vpbe_display_g_std(struct file *file, void *priv, | |
937 | v4l2_std_id *std_id) | |
938 | { | |
939 | struct vpbe_fh *fh = priv; | |
940 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
941 | ||
942 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_G_STD\n"); | |
943 | ||
944 | /* Get the standard from the current encoder */ | |
945 | if (vpbe_dev->current_timings.timings_type & VPBE_ENC_STD) { | |
946 | *std_id = vpbe_dev->current_timings.timings.std_id; | |
947 | return 0; | |
948 | } | |
949 | ||
950 | return -EINVAL; | |
951 | } | |
952 | ||
953 | /** | |
954 | * vpbe_display_enum_output - enumerate outputs | |
955 | * | |
956 | * Enumerates the outputs available at the vpbe display | |
957 | * returns the status, -EINVAL if end of output list | |
958 | */ | |
959 | static int vpbe_display_enum_output(struct file *file, void *priv, | |
960 | struct v4l2_output *output) | |
961 | { | |
962 | struct vpbe_fh *fh = priv; | |
963 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
964 | int ret; | |
965 | ||
966 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_ENUM_OUTPUT\n"); | |
967 | ||
968 | /* Enumerate outputs */ | |
969 | ||
970 | if (NULL == vpbe_dev->ops.enum_outputs) | |
971 | return -EINVAL; | |
972 | ||
973 | ret = vpbe_dev->ops.enum_outputs(vpbe_dev, output); | |
974 | if (ret) { | |
975 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
976 | "Failed to enumerate outputs\n"); | |
977 | return -EINVAL; | |
978 | } | |
979 | ||
980 | return 0; | |
981 | } | |
982 | ||
983 | /** | |
984 | * vpbe_display_s_output - Set output to | |
985 | * the output specified by the index | |
986 | */ | |
987 | static int vpbe_display_s_output(struct file *file, void *priv, | |
988 | unsigned int i) | |
989 | { | |
990 | struct vpbe_fh *fh = priv; | |
991 | struct vpbe_layer *layer = fh->layer; | |
992 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
993 | int ret; | |
994 | ||
995 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_S_OUTPUT\n"); | |
996 | /* If streaming is started, return error */ | |
997 | if (layer->started) { | |
998 | v4l2_err(&vpbe_dev->v4l2_dev, "Streaming is started\n"); | |
999 | return -EBUSY; | |
1000 | } | |
1001 | if (NULL == vpbe_dev->ops.set_output) | |
1002 | return -EINVAL; | |
1003 | ||
1004 | ret = vpbe_dev->ops.set_output(vpbe_dev, i); | |
1005 | if (ret) { | |
1006 | v4l2_err(&vpbe_dev->v4l2_dev, | |
1007 | "Failed to set output for sub devices\n"); | |
1008 | return -EINVAL; | |
1009 | } | |
1010 | ||
1011 | return 0; | |
1012 | } | |
1013 | ||
1014 | /** | |
1015 | * vpbe_display_g_output - Get output from subdevice | |
1016 | * for a given by the index | |
1017 | */ | |
1018 | static int vpbe_display_g_output(struct file *file, void *priv, | |
1019 | unsigned int *i) | |
1020 | { | |
1021 | struct vpbe_fh *fh = priv; | |
1022 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1023 | ||
1024 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_G_OUTPUT\n"); | |
1025 | /* Get the standard from the current encoder */ | |
1026 | *i = vpbe_dev->current_out_index; | |
1027 | ||
1028 | return 0; | |
1029 | } | |
1030 | ||
1031 | /** | |
1032 | * vpbe_display_enum_dv_presets - Enumerate the dv presets | |
1033 | * | |
1034 | * enum the preset in the current encoder. Return the status. 0 - success | |
1035 | * -EINVAL on error | |
1036 | */ | |
1037 | static int | |
1038 | vpbe_display_enum_dv_presets(struct file *file, void *priv, | |
1039 | struct v4l2_dv_enum_preset *preset) | |
1040 | { | |
1041 | struct vpbe_fh *fh = priv; | |
1042 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1043 | int ret; | |
1044 | ||
1045 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_ENUM_DV_PRESETS\n"); | |
1046 | ||
1047 | /* Enumerate outputs */ | |
1048 | if (NULL == vpbe_dev->ops.enum_dv_presets) | |
1049 | return -EINVAL; | |
1050 | ||
1051 | ret = vpbe_dev->ops.enum_dv_presets(vpbe_dev, preset); | |
1052 | if (ret) { | |
1053 | v4l2_err(&vpbe_dev->v4l2_dev, | |
1054 | "Failed to enumerate dv presets info\n"); | |
1055 | return -EINVAL; | |
1056 | } | |
1057 | ||
1058 | return 0; | |
1059 | } | |
1060 | ||
1061 | /** | |
1062 | * vpbe_display_s_dv_preset - Set the dv presets | |
1063 | * | |
1064 | * Set the preset in the current encoder. Return the status. 0 - success | |
1065 | * -EINVAL on error | |
1066 | */ | |
1067 | static int | |
1068 | vpbe_display_s_dv_preset(struct file *file, void *priv, | |
1069 | struct v4l2_dv_preset *preset) | |
1070 | { | |
1071 | struct vpbe_fh *fh = priv; | |
1072 | struct vpbe_layer *layer = fh->layer; | |
1073 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1074 | int ret; | |
1075 | ||
1076 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_S_DV_PRESETS\n"); | |
1077 | ||
1078 | ||
1079 | /* If streaming is started, return error */ | |
1080 | if (layer->started) { | |
1081 | v4l2_err(&vpbe_dev->v4l2_dev, "Streaming is started\n"); | |
1082 | return -EBUSY; | |
1083 | } | |
1084 | ||
1085 | /* Set the given standard in the encoder */ | |
1086 | if (NULL != vpbe_dev->ops.s_dv_preset) | |
1087 | return -EINVAL; | |
1088 | ||
1089 | ret = vpbe_dev->ops.s_dv_preset(vpbe_dev, preset); | |
1090 | if (ret) { | |
1091 | v4l2_err(&vpbe_dev->v4l2_dev, | |
1092 | "Failed to set the dv presets info\n"); | |
1093 | return -EINVAL; | |
1094 | } | |
1095 | /* set the current norm to zero to be consistent. If STD is used | |
1096 | * v4l2 layer will set the norm properly on successful s_std call | |
1097 | */ | |
1098 | layer->video_dev.current_norm = 0; | |
1099 | ||
1100 | return 0; | |
1101 | } | |
1102 | ||
1103 | /** | |
1104 | * vpbe_display_g_dv_preset - Set the dv presets | |
1105 | * | |
1106 | * Get the preset in the current encoder. Return the status. 0 - success | |
1107 | * -EINVAL on error | |
1108 | */ | |
1109 | static int | |
1110 | vpbe_display_g_dv_preset(struct file *file, void *priv, | |
1111 | struct v4l2_dv_preset *dv_preset) | |
1112 | { | |
1113 | struct vpbe_fh *fh = priv; | |
1114 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1115 | ||
1116 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_G_DV_PRESETS\n"); | |
1117 | ||
1118 | /* Get the given standard in the encoder */ | |
1119 | ||
1120 | if (vpbe_dev->current_timings.timings_type & | |
1121 | VPBE_ENC_DV_PRESET) { | |
1122 | dv_preset->preset = | |
1123 | vpbe_dev->current_timings.timings.dv_preset; | |
1124 | } else { | |
1125 | return -EINVAL; | |
1126 | } | |
1127 | ||
1128 | return 0; | |
1129 | } | |
1130 | ||
1131 | static int vpbe_display_streamoff(struct file *file, void *priv, | |
1132 | enum v4l2_buf_type buf_type) | |
1133 | { | |
1134 | struct vpbe_fh *fh = file->private_data; | |
1135 | struct vpbe_layer *layer = fh->layer; | |
1136 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1137 | struct osd_state *osd_device = fh->disp_dev->osd_device; | |
1138 | int ret; | |
1139 | ||
1140 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
1141 | "VIDIOC_STREAMOFF,layer id = %d\n", | |
1142 | layer->device_id); | |
1143 | ||
1144 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != buf_type) { | |
1145 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1146 | return -EINVAL; | |
1147 | } | |
1148 | ||
1149 | /* If io is allowed for this file handle, return error */ | |
1150 | if (!fh->io_allowed) { | |
1151 | v4l2_err(&vpbe_dev->v4l2_dev, "No io_allowed\n"); | |
1152 | return -EACCES; | |
1153 | } | |
1154 | ||
1155 | /* If streaming is not started, return error */ | |
1156 | if (!layer->started) { | |
1157 | v4l2_err(&vpbe_dev->v4l2_dev, "streaming not started in layer" | |
1158 | " id = %d\n", layer->device_id); | |
1159 | return -EINVAL; | |
1160 | } | |
1161 | ||
1162 | osd_device->ops.disable_layer(osd_device, | |
1163 | layer->layer_info.id); | |
1164 | layer->started = 0; | |
1165 | ret = videobuf_streamoff(&layer->buffer_queue); | |
1166 | ||
1167 | return ret; | |
1168 | } | |
1169 | ||
1170 | static int vpbe_display_streamon(struct file *file, void *priv, | |
1171 | enum v4l2_buf_type buf_type) | |
1172 | { | |
1173 | struct vpbe_fh *fh = file->private_data; | |
1174 | struct vpbe_layer *layer = fh->layer; | |
1175 | struct vpbe_display *disp_dev = fh->disp_dev; | |
1176 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1177 | struct osd_state *osd_device = disp_dev->osd_device; | |
1178 | int ret; | |
1179 | ||
1180 | osd_device->ops.disable_layer(osd_device, | |
1181 | layer->layer_info.id); | |
1182 | ||
1183 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_STREAMON, layerid=%d\n", | |
1184 | layer->device_id); | |
1185 | ||
1186 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != buf_type) { | |
1187 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1188 | return -EINVAL; | |
1189 | } | |
1190 | ||
1191 | /* If file handle is not allowed IO, return error */ | |
1192 | if (!fh->io_allowed) { | |
1193 | v4l2_err(&vpbe_dev->v4l2_dev, "No io_allowed\n"); | |
1194 | return -EACCES; | |
1195 | } | |
1196 | /* If Streaming is already started, return error */ | |
1197 | if (layer->started) { | |
1198 | v4l2_err(&vpbe_dev->v4l2_dev, "layer is already streaming\n"); | |
1199 | return -EBUSY; | |
1200 | } | |
1201 | ||
1202 | /* | |
1203 | * Call videobuf_streamon to start streaming | |
1204 | * in videobuf | |
1205 | */ | |
1206 | ret = videobuf_streamon(&layer->buffer_queue); | |
1207 | if (ret) { | |
1208 | v4l2_err(&vpbe_dev->v4l2_dev, | |
1209 | "error in videobuf_streamon\n"); | |
1210 | return ret; | |
1211 | } | |
1212 | /* If buffer queue is empty, return error */ | |
1213 | if (list_empty(&layer->dma_queue)) { | |
1214 | v4l2_err(&vpbe_dev->v4l2_dev, "buffer queue is empty\n"); | |
1215 | goto streamoff; | |
1216 | } | |
1217 | /* Get the next frame from the buffer queue */ | |
1218 | layer->next_frm = layer->cur_frm = list_entry(layer->dma_queue.next, | |
1219 | struct videobuf_buffer, queue); | |
1220 | /* Remove buffer from the buffer queue */ | |
1221 | list_del(&layer->cur_frm->queue); | |
1222 | /* Mark state of the current frame to active */ | |
1223 | layer->cur_frm->state = VIDEOBUF_ACTIVE; | |
1224 | /* Initialize field_id and started member */ | |
1225 | layer->field_id = 0; | |
1226 | ||
1227 | /* Set parameters in OSD and VENC */ | |
1228 | ret = vpbe_set_osd_display_params(disp_dev, layer); | |
1229 | if (ret < 0) | |
1230 | goto streamoff; | |
1231 | ||
1232 | /* | |
1233 | * if request format is yuv420 semiplanar, need to | |
1234 | * enable both video windows | |
1235 | */ | |
1236 | layer->started = 1; | |
1237 | ||
1238 | layer->layer_first_int = 1; | |
1239 | ||
1240 | return ret; | |
1241 | streamoff: | |
1242 | ret = videobuf_streamoff(&layer->buffer_queue); | |
1243 | return ret; | |
1244 | } | |
1245 | ||
1246 | static int vpbe_display_dqbuf(struct file *file, void *priv, | |
1247 | struct v4l2_buffer *buf) | |
1248 | { | |
1249 | struct vpbe_fh *fh = file->private_data; | |
1250 | struct vpbe_layer *layer = fh->layer; | |
1251 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1252 | int ret; | |
1253 | ||
1254 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
1255 | "VIDIOC_DQBUF, layer id = %d\n", | |
1256 | layer->device_id); | |
1257 | ||
1258 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != buf->type) { | |
1259 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1260 | return -EINVAL; | |
1261 | } | |
1262 | /* If this file handle is not allowed to do IO, return error */ | |
1263 | if (!fh->io_allowed) { | |
1264 | v4l2_err(&vpbe_dev->v4l2_dev, "No io_allowed\n"); | |
1265 | return -EACCES; | |
1266 | } | |
1267 | if (file->f_flags & O_NONBLOCK) | |
1268 | /* Call videobuf_dqbuf for non blocking mode */ | |
1269 | ret = videobuf_dqbuf(&layer->buffer_queue, buf, 1); | |
1270 | else | |
1271 | /* Call videobuf_dqbuf for blocking mode */ | |
1272 | ret = videobuf_dqbuf(&layer->buffer_queue, buf, 0); | |
1273 | ||
1274 | return ret; | |
1275 | } | |
1276 | ||
1277 | static int vpbe_display_qbuf(struct file *file, void *priv, | |
1278 | struct v4l2_buffer *p) | |
1279 | { | |
1280 | struct vpbe_fh *fh = file->private_data; | |
1281 | struct vpbe_layer *layer = fh->layer; | |
1282 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1283 | ||
1284 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
1285 | "VIDIOC_QBUF, layer id = %d\n", | |
1286 | layer->device_id); | |
1287 | ||
1288 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != p->type) { | |
1289 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1290 | return -EINVAL; | |
1291 | } | |
1292 | ||
1293 | /* If this file handle is not allowed to do IO, return error */ | |
1294 | if (!fh->io_allowed) { | |
1295 | v4l2_err(&vpbe_dev->v4l2_dev, "No io_allowed\n"); | |
1296 | return -EACCES; | |
1297 | } | |
1298 | ||
1299 | return videobuf_qbuf(&layer->buffer_queue, p); | |
1300 | } | |
1301 | ||
1302 | static int vpbe_display_querybuf(struct file *file, void *priv, | |
1303 | struct v4l2_buffer *buf) | |
1304 | { | |
1305 | struct vpbe_fh *fh = file->private_data; | |
1306 | struct vpbe_layer *layer = fh->layer; | |
1307 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1308 | int ret; | |
1309 | ||
1310 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
1311 | "VIDIOC_QUERYBUF, layer id = %d\n", | |
1312 | layer->device_id); | |
1313 | ||
1314 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != buf->type) { | |
1315 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1316 | return -EINVAL; | |
1317 | } | |
1318 | ||
1319 | /* Call videobuf_querybuf to get information */ | |
1320 | ret = videobuf_querybuf(&layer->buffer_queue, buf); | |
1321 | ||
1322 | return ret; | |
1323 | } | |
1324 | ||
1325 | static int vpbe_display_reqbufs(struct file *file, void *priv, | |
1326 | struct v4l2_requestbuffers *req_buf) | |
1327 | { | |
1328 | struct vpbe_fh *fh = file->private_data; | |
1329 | struct vpbe_layer *layer = fh->layer; | |
1330 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1331 | int ret; | |
1332 | ||
1333 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_reqbufs\n"); | |
1334 | ||
1335 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != req_buf->type) { | |
1336 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1337 | return -EINVAL; | |
1338 | } | |
1339 | ||
1340 | /* If io users of the layer is not zero, return error */ | |
1341 | if (0 != layer->io_usrs) { | |
1342 | v4l2_err(&vpbe_dev->v4l2_dev, "not IO user\n"); | |
1343 | return -EBUSY; | |
1344 | } | |
1345 | /* Initialize videobuf queue as per the buffer type */ | |
1346 | videobuf_queue_dma_contig_init(&layer->buffer_queue, | |
1347 | &video_qops, | |
1348 | vpbe_dev->pdev, | |
1349 | &layer->irqlock, | |
1350 | V4L2_BUF_TYPE_VIDEO_OUTPUT, | |
1351 | layer->pix_fmt.field, | |
1352 | sizeof(struct videobuf_buffer), | |
1353 | fh, NULL); | |
1354 | ||
1355 | /* Set io allowed member of file handle to TRUE */ | |
1356 | fh->io_allowed = 1; | |
1357 | /* Increment io usrs member of layer object to 1 */ | |
1358 | layer->io_usrs = 1; | |
1359 | /* Store type of memory requested in layer object */ | |
1360 | layer->memory = req_buf->memory; | |
1361 | /* Initialize buffer queue */ | |
1362 | INIT_LIST_HEAD(&layer->dma_queue); | |
1363 | /* Allocate buffers */ | |
1364 | ret = videobuf_reqbufs(&layer->buffer_queue, req_buf); | |
1365 | ||
1366 | return ret; | |
1367 | } | |
1368 | ||
1369 | /* | |
1370 | * vpbe_display_mmap() | |
1371 | * It is used to map kernel space buffers into user spaces | |
1372 | */ | |
1373 | static int vpbe_display_mmap(struct file *filep, struct vm_area_struct *vma) | |
1374 | { | |
1375 | /* Get the layer object and file handle object */ | |
1376 | struct vpbe_fh *fh = filep->private_data; | |
1377 | struct vpbe_layer *layer = fh->layer; | |
1378 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1379 | ||
1380 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_mmap\n"); | |
1381 | ||
1382 | return videobuf_mmap_mapper(&layer->buffer_queue, vma); | |
1383 | } | |
1384 | ||
1385 | /* vpbe_display_poll(): It is used for select/poll system call | |
1386 | */ | |
1387 | static unsigned int vpbe_display_poll(struct file *filep, poll_table *wait) | |
1388 | { | |
1389 | struct vpbe_fh *fh = filep->private_data; | |
1390 | struct vpbe_layer *layer = fh->layer; | |
1391 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1392 | unsigned int err = 0; | |
1393 | ||
1394 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_poll\n"); | |
1395 | if (layer->started) | |
1396 | err = videobuf_poll_stream(filep, &layer->buffer_queue, wait); | |
1397 | return err; | |
1398 | } | |
1399 | ||
1400 | /* | |
1401 | * vpbe_display_open() | |
1402 | * It creates object of file handle structure and stores it in private_data | |
1403 | * member of filepointer | |
1404 | */ | |
1405 | static int vpbe_display_open(struct file *file) | |
1406 | { | |
1407 | struct vpbe_fh *fh = NULL; | |
1408 | struct vpbe_layer *layer = video_drvdata(file); | |
1409 | struct vpbe_display *disp_dev = layer->disp_dev; | |
1410 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
1411 | struct osd_state *osd_device = disp_dev->osd_device; | |
1412 | int err; | |
1413 | ||
1414 | /* Allocate memory for the file handle object */ | |
1415 | fh = kmalloc(sizeof(struct vpbe_fh), GFP_KERNEL); | |
1416 | if (fh == NULL) { | |
1417 | v4l2_err(&vpbe_dev->v4l2_dev, | |
1418 | "unable to allocate memory for file handle object\n"); | |
1419 | return -ENOMEM; | |
1420 | } | |
1421 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
1422 | "vpbe display open plane = %d\n", | |
1423 | layer->device_id); | |
1424 | ||
1425 | /* store pointer to fh in private_data member of filep */ | |
1426 | file->private_data = fh; | |
1427 | fh->layer = layer; | |
1428 | fh->disp_dev = disp_dev; | |
1429 | ||
1430 | if (!layer->usrs) { | |
1431 | ||
1432 | /* First claim the layer for this device */ | |
1433 | err = osd_device->ops.request_layer(osd_device, | |
1434 | layer->layer_info.id); | |
1435 | if (err < 0) { | |
1436 | /* Couldn't get layer */ | |
1437 | v4l2_err(&vpbe_dev->v4l2_dev, | |
1438 | "Display Manager failed to allocate layer\n"); | |
1439 | kfree(fh); | |
1440 | return -EINVAL; | |
1441 | } | |
1442 | } | |
1443 | /* Increment layer usrs counter */ | |
1444 | layer->usrs++; | |
1445 | /* Set io_allowed member to false */ | |
1446 | fh->io_allowed = 0; | |
1447 | /* Initialize priority of this instance to default priority */ | |
1448 | fh->prio = V4L2_PRIORITY_UNSET; | |
1449 | v4l2_prio_open(&layer->prio, &fh->prio); | |
1450 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
1451 | "vpbe display device opened successfully\n"); | |
1452 | return 0; | |
1453 | } | |
1454 | ||
1455 | /* | |
1456 | * vpbe_display_release() | |
1457 | * This function deletes buffer queue, frees the buffers and the davinci | |
1458 | * display file * handle | |
1459 | */ | |
1460 | static int vpbe_display_release(struct file *file) | |
1461 | { | |
1462 | /* Get the layer object and file handle object */ | |
1463 | struct vpbe_fh *fh = file->private_data; | |
1464 | struct vpbe_layer *layer = fh->layer; | |
1465 | struct osd_layer_config *cfg = &layer->layer_info.config; | |
1466 | struct vpbe_display *disp_dev = fh->disp_dev; | |
1467 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
1468 | struct osd_state *osd_device = disp_dev->osd_device; | |
1469 | ||
1470 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_release\n"); | |
1471 | ||
1472 | /* if this instance is doing IO */ | |
1473 | if (fh->io_allowed) { | |
1474 | /* Reset io_usrs member of layer object */ | |
1475 | layer->io_usrs = 0; | |
1476 | ||
1477 | osd_device->ops.disable_layer(osd_device, | |
1478 | layer->layer_info.id); | |
1479 | layer->started = 0; | |
1480 | /* Free buffers allocated */ | |
1481 | videobuf_queue_cancel(&layer->buffer_queue); | |
1482 | videobuf_mmap_free(&layer->buffer_queue); | |
1483 | } | |
1484 | ||
1485 | /* Decrement layer usrs counter */ | |
1486 | layer->usrs--; | |
1487 | /* If this file handle has initialize encoder device, reset it */ | |
1488 | if (!layer->usrs) { | |
1489 | if (cfg->pixfmt == PIXFMT_NV12) { | |
1490 | struct vpbe_layer *otherlayer; | |
1491 | otherlayer = | |
1492 | _vpbe_display_get_other_win_layer(disp_dev, layer); | |
1493 | osd_device->ops.disable_layer(osd_device, | |
1494 | otherlayer->layer_info.id); | |
1495 | osd_device->ops.release_layer(osd_device, | |
1496 | otherlayer->layer_info.id); | |
1497 | } | |
1498 | osd_device->ops.disable_layer(osd_device, | |
1499 | layer->layer_info.id); | |
1500 | osd_device->ops.release_layer(osd_device, | |
1501 | layer->layer_info.id); | |
1502 | } | |
1503 | /* Close the priority */ | |
1504 | v4l2_prio_close(&layer->prio, fh->prio); | |
1505 | file->private_data = NULL; | |
1506 | ||
1507 | /* Free memory allocated to file handle object */ | |
1508 | kfree(fh); | |
1509 | ||
1510 | disp_dev->cbcr_ofst = 0; | |
1511 | ||
1512 | return 0; | |
1513 | } | |
1514 | ||
1515 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1516 | static int vpbe_display_g_register(struct file *file, void *priv, | |
1517 | struct v4l2_dbg_register *reg) | |
1518 | { | |
1519 | struct v4l2_dbg_match *match = ®->match; | |
1520 | ||
1521 | if (match->type >= 2) { | |
1522 | v4l2_subdev_call(vpbe_dev->venc, | |
1523 | core, | |
1524 | g_register, | |
1525 | reg); | |
1526 | } | |
1527 | ||
1528 | return 0; | |
1529 | } | |
1530 | ||
1531 | static int vpbe_display_s_register(struct file *file, void *priv, | |
1532 | struct v4l2_dbg_register *reg) | |
1533 | { | |
1534 | return 0; | |
1535 | } | |
1536 | #endif | |
1537 | ||
1538 | /* vpbe capture ioctl operations */ | |
1539 | static const struct v4l2_ioctl_ops vpbe_ioctl_ops = { | |
1540 | .vidioc_querycap = vpbe_display_querycap, | |
1541 | .vidioc_g_fmt_vid_out = vpbe_display_g_fmt, | |
1542 | .vidioc_enum_fmt_vid_out = vpbe_display_enum_fmt, | |
1543 | .vidioc_s_fmt_vid_out = vpbe_display_s_fmt, | |
1544 | .vidioc_try_fmt_vid_out = vpbe_display_try_fmt, | |
1545 | .vidioc_reqbufs = vpbe_display_reqbufs, | |
1546 | .vidioc_querybuf = vpbe_display_querybuf, | |
1547 | .vidioc_qbuf = vpbe_display_qbuf, | |
1548 | .vidioc_dqbuf = vpbe_display_dqbuf, | |
1549 | .vidioc_streamon = vpbe_display_streamon, | |
1550 | .vidioc_streamoff = vpbe_display_streamoff, | |
1551 | .vidioc_cropcap = vpbe_display_cropcap, | |
1552 | .vidioc_g_crop = vpbe_display_g_crop, | |
1553 | .vidioc_s_crop = vpbe_display_s_crop, | |
1554 | .vidioc_g_priority = vpbe_display_g_priority, | |
1555 | .vidioc_s_priority = vpbe_display_s_priority, | |
1556 | .vidioc_s_std = vpbe_display_s_std, | |
1557 | .vidioc_g_std = vpbe_display_g_std, | |
1558 | .vidioc_enum_output = vpbe_display_enum_output, | |
1559 | .vidioc_s_output = vpbe_display_s_output, | |
1560 | .vidioc_g_output = vpbe_display_g_output, | |
1561 | .vidioc_s_dv_preset = vpbe_display_s_dv_preset, | |
1562 | .vidioc_g_dv_preset = vpbe_display_g_dv_preset, | |
1563 | .vidioc_enum_dv_presets = vpbe_display_enum_dv_presets, | |
1564 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1565 | .vidioc_g_register = vpbe_display_g_register, | |
1566 | .vidioc_s_register = vpbe_display_s_register, | |
1567 | #endif | |
1568 | }; | |
1569 | ||
1570 | static struct v4l2_file_operations vpbe_fops = { | |
1571 | .owner = THIS_MODULE, | |
1572 | .open = vpbe_display_open, | |
1573 | .release = vpbe_display_release, | |
1574 | .unlocked_ioctl = video_ioctl2, | |
1575 | .mmap = vpbe_display_mmap, | |
1576 | .poll = vpbe_display_poll | |
1577 | }; | |
1578 | ||
1579 | static int vpbe_device_get(struct device *dev, void *data) | |
1580 | { | |
1581 | struct platform_device *pdev = to_platform_device(dev); | |
1582 | struct vpbe_display *vpbe_disp = data; | |
1583 | ||
1584 | if (strcmp("vpbe_controller", pdev->name) == 0) | |
1585 | vpbe_disp->vpbe_dev = platform_get_drvdata(pdev); | |
1586 | ||
1587 | if (strcmp("vpbe-osd", pdev->name) == 0) | |
1588 | vpbe_disp->osd_device = platform_get_drvdata(pdev); | |
1589 | ||
1590 | return 0; | |
1591 | } | |
1592 | ||
1593 | static __devinit int init_vpbe_layer(int i, struct vpbe_display *disp_dev, | |
1594 | struct platform_device *pdev) | |
1595 | { | |
1596 | struct vpbe_layer *vpbe_display_layer = NULL; | |
1597 | struct video_device *vbd = NULL; | |
1598 | ||
1599 | /* Allocate memory for four plane display objects */ | |
1600 | ||
1601 | disp_dev->dev[i] = | |
1602 | kzalloc(sizeof(struct vpbe_layer), GFP_KERNEL); | |
1603 | ||
1604 | /* If memory allocation fails, return error */ | |
1605 | if (!disp_dev->dev[i]) { | |
1606 | printk(KERN_ERR "ran out of memory\n"); | |
1607 | return -ENOMEM; | |
1608 | } | |
1609 | spin_lock_init(&disp_dev->dev[i]->irqlock); | |
1610 | mutex_init(&disp_dev->dev[i]->opslock); | |
1611 | ||
1612 | /* Get the pointer to the layer object */ | |
1613 | vpbe_display_layer = disp_dev->dev[i]; | |
1614 | vbd = &vpbe_display_layer->video_dev; | |
1615 | /* Initialize field of video device */ | |
1616 | vbd->release = video_device_release_empty; | |
1617 | vbd->fops = &vpbe_fops; | |
1618 | vbd->ioctl_ops = &vpbe_ioctl_ops; | |
1619 | vbd->minor = -1; | |
1620 | vbd->v4l2_dev = &disp_dev->vpbe_dev->v4l2_dev; | |
1621 | vbd->lock = &vpbe_display_layer->opslock; | |
1622 | ||
1623 | if (disp_dev->vpbe_dev->current_timings.timings_type & | |
1624 | VPBE_ENC_STD) { | |
1625 | vbd->tvnorms = (V4L2_STD_525_60 | V4L2_STD_625_50); | |
1626 | vbd->current_norm = | |
1627 | disp_dev->vpbe_dev-> | |
1628 | current_timings.timings.std_id; | |
1629 | } else | |
1630 | vbd->current_norm = 0; | |
1631 | ||
1632 | snprintf(vbd->name, sizeof(vbd->name), | |
1633 | "DaVinci_VPBE Display_DRIVER_V%d.%d.%d", | |
1634 | (VPBE_DISPLAY_VERSION_CODE >> 16) & 0xff, | |
1635 | (VPBE_DISPLAY_VERSION_CODE >> 8) & 0xff, | |
1636 | (VPBE_DISPLAY_VERSION_CODE) & 0xff); | |
1637 | ||
1638 | vpbe_display_layer->device_id = i; | |
1639 | ||
1640 | vpbe_display_layer->layer_info.id = | |
1641 | ((i == VPBE_DISPLAY_DEVICE_0) ? WIN_VID0 : WIN_VID1); | |
1642 | ||
1643 | /* Initialize prio member of layer object */ | |
1644 | v4l2_prio_init(&vpbe_display_layer->prio); | |
1645 | ||
1646 | return 0; | |
1647 | } | |
1648 | ||
1649 | static __devinit int register_device(struct vpbe_layer *vpbe_display_layer, | |
1650 | struct vpbe_display *disp_dev, | |
1651 | struct platform_device *pdev) { | |
1652 | int err; | |
1653 | ||
1654 | v4l2_info(&disp_dev->vpbe_dev->v4l2_dev, | |
1655 | "Trying to register VPBE display device.\n"); | |
1656 | v4l2_info(&disp_dev->vpbe_dev->v4l2_dev, | |
1657 | "layer=%x,layer->video_dev=%x\n", | |
1658 | (int)vpbe_display_layer, | |
1659 | (int)&vpbe_display_layer->video_dev); | |
1660 | ||
1661 | err = video_register_device(&vpbe_display_layer->video_dev, | |
1662 | VFL_TYPE_GRABBER, | |
1663 | -1); | |
1664 | if (err) | |
1665 | return -ENODEV; | |
1666 | ||
1667 | vpbe_display_layer->disp_dev = disp_dev; | |
1668 | /* set the driver data in platform device */ | |
1669 | platform_set_drvdata(pdev, disp_dev); | |
1670 | video_set_drvdata(&vpbe_display_layer->video_dev, | |
1671 | vpbe_display_layer); | |
1672 | ||
1673 | return 0; | |
1674 | } | |
1675 | ||
1676 | ||
1677 | ||
1678 | /* | |
1679 | * vpbe_display_probe() | |
1680 | * This function creates device entries by register itself to the V4L2 driver | |
1681 | * and initializes fields of each layer objects | |
1682 | */ | |
1683 | static __devinit int vpbe_display_probe(struct platform_device *pdev) | |
1684 | { | |
1685 | struct vpbe_layer *vpbe_display_layer; | |
1686 | struct vpbe_display *disp_dev; | |
1687 | struct resource *res = NULL; | |
1688 | int k; | |
1689 | int i; | |
1690 | int err; | |
1691 | int irq; | |
1692 | ||
1693 | printk(KERN_DEBUG "vpbe_display_probe\n"); | |
1694 | /* Allocate memory for vpbe_display */ | |
1695 | disp_dev = kzalloc(sizeof(struct vpbe_display), GFP_KERNEL); | |
1696 | if (!disp_dev) { | |
1697 | printk(KERN_ERR "ran out of memory\n"); | |
1698 | return -ENOMEM; | |
1699 | } | |
1700 | ||
1701 | spin_lock_init(&disp_dev->dma_queue_lock); | |
1702 | /* | |
1703 | * Scan all the platform devices to find the vpbe | |
1704 | * controller device and get the vpbe_dev object | |
1705 | */ | |
1706 | err = bus_for_each_dev(&platform_bus_type, NULL, disp_dev, | |
1707 | vpbe_device_get); | |
1708 | if (err < 0) | |
1709 | return err; | |
1710 | /* Initialize the vpbe display controller */ | |
1711 | if (NULL != disp_dev->vpbe_dev->ops.initialize) { | |
1712 | err = disp_dev->vpbe_dev->ops.initialize(&pdev->dev, | |
1713 | disp_dev->vpbe_dev); | |
1714 | if (err) { | |
1715 | v4l2_err(&disp_dev->vpbe_dev->v4l2_dev, | |
1716 | "Error initing vpbe\n"); | |
1717 | err = -ENOMEM; | |
1718 | goto probe_out; | |
1719 | } | |
1720 | } | |
1721 | ||
1722 | for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { | |
1723 | if (init_vpbe_layer(i, disp_dev, pdev)) { | |
1724 | err = -ENODEV; | |
1725 | goto probe_out; | |
1726 | } | |
1727 | } | |
1728 | ||
1729 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); | |
1730 | if (!res) { | |
1731 | v4l2_err(&disp_dev->vpbe_dev->v4l2_dev, | |
1732 | "Unable to get VENC interrupt resource\n"); | |
1733 | err = -ENODEV; | |
1734 | goto probe_out; | |
1735 | } | |
1736 | ||
1737 | irq = res->start; | |
1738 | if (request_irq(irq, venc_isr, IRQF_DISABLED, VPBE_DISPLAY_DRIVER, | |
1739 | disp_dev)) { | |
1740 | v4l2_err(&disp_dev->vpbe_dev->v4l2_dev, | |
1741 | "Unable to request interrupt\n"); | |
1742 | err = -ENODEV; | |
1743 | goto probe_out; | |
1744 | } | |
1745 | ||
1746 | for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { | |
1747 | if (register_device(disp_dev->dev[i], disp_dev, pdev)) { | |
1748 | err = -ENODEV; | |
49a0513c | 1749 | goto probe_out_irq; |
a2c25b44 MH |
1750 | } |
1751 | } | |
1752 | ||
1753 | printk(KERN_DEBUG "Successfully completed the probing of vpbe v4l2 device\n"); | |
1754 | return 0; | |
1755 | ||
49a0513c | 1756 | probe_out_irq: |
a2c25b44 | 1757 | free_irq(res->start, disp_dev); |
49a0513c | 1758 | probe_out: |
a2c25b44 MH |
1759 | for (k = 0; k < VPBE_DISPLAY_MAX_DEVICES; k++) { |
1760 | /* Get the pointer to the layer object */ | |
1761 | vpbe_display_layer = disp_dev->dev[k]; | |
1762 | /* Unregister video device */ | |
1763 | if (vpbe_display_layer) { | |
1764 | video_unregister_device( | |
1765 | &vpbe_display_layer->video_dev); | |
1766 | kfree(disp_dev->dev[k]); | |
1767 | } | |
1768 | } | |
1769 | kfree(disp_dev); | |
1770 | return err; | |
1771 | } | |
1772 | ||
1773 | /* | |
1774 | * vpbe_display_remove() | |
1775 | * It un-register hardware layer from V4L2 driver | |
1776 | */ | |
1777 | static int vpbe_display_remove(struct platform_device *pdev) | |
1778 | { | |
1779 | struct vpbe_layer *vpbe_display_layer; | |
1780 | struct vpbe_display *disp_dev = platform_get_drvdata(pdev); | |
1781 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
1782 | struct resource *res; | |
1783 | int i; | |
1784 | ||
1785 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_remove\n"); | |
1786 | ||
1787 | /* unregister irq */ | |
1788 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); | |
1789 | free_irq(res->start, disp_dev); | |
1790 | ||
1791 | /* deinitialize the vpbe display controller */ | |
1792 | if (NULL != vpbe_dev->ops.deinitialize) | |
1793 | vpbe_dev->ops.deinitialize(&pdev->dev, vpbe_dev); | |
1794 | /* un-register device */ | |
1795 | for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { | |
1796 | /* Get the pointer to the layer object */ | |
1797 | vpbe_display_layer = disp_dev->dev[i]; | |
1798 | /* Unregister video device */ | |
1799 | video_unregister_device(&vpbe_display_layer->video_dev); | |
1800 | ||
1801 | } | |
1802 | for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { | |
1803 | kfree(disp_dev->dev[i]); | |
1804 | disp_dev->dev[i] = NULL; | |
1805 | } | |
1806 | ||
1807 | return 0; | |
1808 | } | |
1809 | ||
1810 | static struct platform_driver vpbe_display_driver = { | |
1811 | .driver = { | |
1812 | .name = VPBE_DISPLAY_DRIVER, | |
1813 | .owner = THIS_MODULE, | |
1814 | .bus = &platform_bus_type, | |
1815 | }, | |
1816 | .probe = vpbe_display_probe, | |
1817 | .remove = __devexit_p(vpbe_display_remove), | |
1818 | }; | |
1819 | ||
1d6629b1 | 1820 | module_platform_driver(vpbe_display_driver); |
a2c25b44 MH |
1821 | |
1822 | MODULE_DESCRIPTION("TI DM644x/DM355/DM365 VPBE Display controller"); | |
1823 | MODULE_LICENSE("GPL"); | |
1824 | MODULE_AUTHOR("Texas Instruments"); |