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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 | ||
13fc23d3 LP |
50 | static int vpbe_set_osd_display_params(struct vpbe_display *disp_dev, |
51 | struct vpbe_layer *layer); | |
52 | ||
a2c25b44 MH |
53 | static int venc_is_second_field(struct vpbe_display *disp_dev) |
54 | { | |
55 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
56 | int ret; | |
57 | int val; | |
58 | ||
59 | ret = v4l2_subdev_call(vpbe_dev->venc, | |
60 | core, | |
61 | ioctl, | |
62 | VENC_GET_FLD, | |
63 | &val); | |
64 | if (ret < 0) { | |
65 | v4l2_err(&vpbe_dev->v4l2_dev, | |
66 | "Error in getting Field ID 0\n"); | |
67 | } | |
68 | return val; | |
69 | } | |
70 | ||
71 | static void vpbe_isr_even_field(struct vpbe_display *disp_obj, | |
72 | struct vpbe_layer *layer) | |
73 | { | |
74 | struct timespec timevalue; | |
75 | ||
76 | if (layer->cur_frm == layer->next_frm) | |
77 | return; | |
78 | ktime_get_ts(&timevalue); | |
13fc23d3 LP |
79 | layer->cur_frm->vb.v4l2_buf.timestamp.tv_sec = |
80 | timevalue.tv_sec; | |
81 | layer->cur_frm->vb.v4l2_buf.timestamp.tv_usec = | |
82 | timevalue.tv_nsec / NSEC_PER_USEC; | |
83 | vb2_buffer_done(&layer->cur_frm->vb, VB2_BUF_STATE_DONE); | |
a2c25b44 MH |
84 | /* Make cur_frm pointing to next_frm */ |
85 | layer->cur_frm = layer->next_frm; | |
86 | } | |
87 | ||
88 | static void vpbe_isr_odd_field(struct vpbe_display *disp_obj, | |
89 | struct vpbe_layer *layer) | |
90 | { | |
91 | struct osd_state *osd_device = disp_obj->osd_device; | |
92 | unsigned long addr; | |
93 | ||
94 | spin_lock(&disp_obj->dma_queue_lock); | |
95 | if (list_empty(&layer->dma_queue) || | |
96 | (layer->cur_frm != layer->next_frm)) { | |
97 | spin_unlock(&disp_obj->dma_queue_lock); | |
98 | return; | |
99 | } | |
100 | /* | |
101 | * one field is displayed configure | |
102 | * the next frame if it is available | |
103 | * otherwise hold on current frame | |
104 | * Get next from the buffer queue | |
105 | */ | |
13fc23d3 LP |
106 | layer->next_frm = list_entry(layer->dma_queue.next, |
107 | struct vpbe_disp_buffer, list); | |
a2c25b44 | 108 | /* Remove that from the buffer queue */ |
13fc23d3 | 109 | list_del(&layer->next_frm->list); |
a2c25b44 MH |
110 | spin_unlock(&disp_obj->dma_queue_lock); |
111 | /* Mark state of the frame to active */ | |
13fc23d3 LP |
112 | layer->next_frm->vb.state = VB2_BUF_STATE_ACTIVE; |
113 | addr = vb2_dma_contig_plane_dma_addr(&layer->next_frm->vb, 0); | |
a2c25b44 MH |
114 | osd_device->ops.start_layer(osd_device, |
115 | layer->layer_info.id, | |
116 | addr, | |
117 | disp_obj->cbcr_ofst); | |
118 | } | |
119 | ||
120 | /* interrupt service routine */ | |
121 | static irqreturn_t venc_isr(int irq, void *arg) | |
122 | { | |
123 | struct vpbe_display *disp_dev = (struct vpbe_display *)arg; | |
124 | struct vpbe_layer *layer; | |
125 | static unsigned last_event; | |
126 | unsigned event = 0; | |
127 | int fid; | |
128 | int i; | |
129 | ||
130 | if ((NULL == arg) || (NULL == disp_dev->dev[0])) | |
131 | return IRQ_HANDLED; | |
132 | ||
133 | if (venc_is_second_field(disp_dev)) | |
134 | event |= VENC_SECOND_FIELD; | |
135 | else | |
136 | event |= VENC_FIRST_FIELD; | |
137 | ||
138 | if (event == (last_event & ~VENC_END_OF_FRAME)) { | |
139 | /* | |
140 | * If the display is non-interlaced, then we need to flag the | |
141 | * end-of-frame event at every interrupt regardless of the | |
142 | * value of the FIDST bit. We can conclude that the display is | |
143 | * non-interlaced if the value of the FIDST bit is unchanged | |
144 | * from the previous interrupt. | |
145 | */ | |
146 | event |= VENC_END_OF_FRAME; | |
147 | } else if (event == VENC_SECOND_FIELD) { | |
148 | /* end-of-frame for interlaced display */ | |
149 | event |= VENC_END_OF_FRAME; | |
150 | } | |
151 | last_event = event; | |
152 | ||
153 | for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { | |
154 | layer = disp_dev->dev[i]; | |
155 | /* If streaming is started in this layer */ | |
156 | if (!layer->started) | |
157 | continue; | |
158 | ||
159 | if (layer->layer_first_int) { | |
160 | layer->layer_first_int = 0; | |
161 | continue; | |
162 | } | |
163 | /* Check the field format */ | |
164 | if ((V4L2_FIELD_NONE == layer->pix_fmt.field) && | |
165 | (event & VENC_END_OF_FRAME)) { | |
166 | /* Progressive mode */ | |
167 | ||
168 | vpbe_isr_even_field(disp_dev, layer); | |
169 | vpbe_isr_odd_field(disp_dev, layer); | |
170 | } else { | |
171 | /* Interlaced mode */ | |
172 | ||
173 | layer->field_id ^= 1; | |
174 | if (event & VENC_FIRST_FIELD) | |
175 | fid = 0; | |
176 | else | |
177 | fid = 1; | |
178 | ||
179 | /* | |
180 | * If field id does not match with store | |
181 | * field id | |
182 | */ | |
183 | if (fid != layer->field_id) { | |
184 | /* Make them in sync */ | |
185 | layer->field_id = fid; | |
186 | continue; | |
187 | } | |
188 | /* | |
189 | * device field id and local field id are | |
190 | * in sync. If this is even field | |
191 | */ | |
192 | if (0 == fid) | |
193 | vpbe_isr_even_field(disp_dev, layer); | |
194 | else /* odd field */ | |
195 | vpbe_isr_odd_field(disp_dev, layer); | |
196 | } | |
197 | } | |
198 | ||
199 | return IRQ_HANDLED; | |
200 | } | |
201 | ||
202 | /* | |
203 | * vpbe_buffer_prepare() | |
13fc23d3 | 204 | * This is the callback function called from vb2_qbuf() function |
a2c25b44 MH |
205 | * the buffer is prepared and user space virtual address is converted into |
206 | * physical address | |
207 | */ | |
13fc23d3 | 208 | static int vpbe_buffer_prepare(struct vb2_buffer *vb) |
a2c25b44 | 209 | { |
13fc23d3 LP |
210 | struct vpbe_fh *fh = vb2_get_drv_priv(vb->vb2_queue); |
211 | struct vb2_queue *q = vb->vb2_queue; | |
a2c25b44 MH |
212 | struct vpbe_layer *layer = fh->layer; |
213 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
214 | unsigned long addr; | |
a2c25b44 MH |
215 | |
216 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
217 | "vpbe_buffer_prepare\n"); | |
218 | ||
13fc23d3 LP |
219 | if (vb->state != VB2_BUF_STATE_ACTIVE && |
220 | vb->state != VB2_BUF_STATE_PREPARED) { | |
221 | vb2_set_plane_payload(vb, 0, layer->pix_fmt.sizeimage); | |
222 | if (vb2_plane_vaddr(vb, 0) && | |
223 | vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0)) | |
a2c25b44 | 224 | return -EINVAL; |
a2c25b44 | 225 | |
13fc23d3 | 226 | addr = vb2_dma_contig_plane_dma_addr(vb, 0); |
a2c25b44 MH |
227 | if (q->streaming) { |
228 | if (!IS_ALIGNED(addr, 8)) { | |
229 | v4l2_err(&vpbe_dev->v4l2_dev, | |
230 | "buffer_prepare:offset is \ | |
231 | not aligned to 32 bytes\n"); | |
232 | return -EINVAL; | |
233 | } | |
234 | } | |
a2c25b44 MH |
235 | } |
236 | return 0; | |
237 | } | |
238 | ||
239 | /* | |
240 | * vpbe_buffer_setup() | |
241 | * This function allocates memory for the buffers | |
242 | */ | |
13fc23d3 LP |
243 | static int |
244 | vpbe_buffer_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, | |
245 | unsigned int *nbuffers, unsigned int *nplanes, | |
246 | unsigned int sizes[], void *alloc_ctxs[]) | |
247 | ||
a2c25b44 MH |
248 | { |
249 | /* Get the file handle object and layer object */ | |
13fc23d3 | 250 | struct vpbe_fh *fh = vb2_get_drv_priv(vq); |
a2c25b44 MH |
251 | struct vpbe_layer *layer = fh->layer; |
252 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
253 | ||
254 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_buffer_setup\n"); | |
255 | ||
a2c25b44 | 256 | /* Store number of buffers allocated in numbuffer member */ |
13fc23d3 LP |
257 | if (*nbuffers < VPBE_DEFAULT_NUM_BUFS) |
258 | *nbuffers = layer->numbuffers = VPBE_DEFAULT_NUM_BUFS; | |
259 | ||
260 | *nplanes = 1; | |
261 | sizes[0] = layer->pix_fmt.sizeimage; | |
262 | alloc_ctxs[0] = layer->alloc_ctx; | |
a2c25b44 MH |
263 | |
264 | return 0; | |
265 | } | |
266 | ||
267 | /* | |
268 | * vpbe_buffer_queue() | |
269 | * This function adds the buffer to DMA queue | |
270 | */ | |
13fc23d3 | 271 | static void vpbe_buffer_queue(struct vb2_buffer *vb) |
a2c25b44 MH |
272 | { |
273 | /* Get the file handle object and layer object */ | |
13fc23d3 LP |
274 | struct vpbe_fh *fh = vb2_get_drv_priv(vb->vb2_queue); |
275 | struct vpbe_disp_buffer *buf = container_of(vb, | |
276 | struct vpbe_disp_buffer, vb); | |
a2c25b44 MH |
277 | struct vpbe_layer *layer = fh->layer; |
278 | struct vpbe_display *disp = fh->disp_dev; | |
279 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
280 | unsigned long flags; | |
281 | ||
282 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
283 | "vpbe_buffer_queue\n"); | |
284 | ||
285 | /* add the buffer to the DMA queue */ | |
286 | spin_lock_irqsave(&disp->dma_queue_lock, flags); | |
13fc23d3 | 287 | list_add_tail(&buf->list, &layer->dma_queue); |
a2c25b44 | 288 | spin_unlock_irqrestore(&disp->dma_queue_lock, flags); |
a2c25b44 MH |
289 | } |
290 | ||
291 | /* | |
13fc23d3 LP |
292 | * vpbe_buf_cleanup() |
293 | * This function is called from the vb2 layer to free memory allocated to | |
a2c25b44 MH |
294 | * the buffers |
295 | */ | |
13fc23d3 | 296 | static void vpbe_buf_cleanup(struct vb2_buffer *vb) |
a2c25b44 MH |
297 | { |
298 | /* Get the file handle object and layer object */ | |
13fc23d3 | 299 | struct vpbe_fh *fh = vb2_get_drv_priv(vb->vb2_queue); |
a2c25b44 MH |
300 | struct vpbe_layer *layer = fh->layer; |
301 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
13fc23d3 LP |
302 | struct vpbe_disp_buffer *buf = container_of(vb, |
303 | struct vpbe_disp_buffer, vb); | |
304 | unsigned long flags; | |
a2c25b44 MH |
305 | |
306 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
13fc23d3 | 307 | "vpbe_buf_cleanup\n"); |
a2c25b44 | 308 | |
13fc23d3 LP |
309 | spin_lock_irqsave(&layer->irqlock, flags); |
310 | if (vb->state == VB2_BUF_STATE_ACTIVE) | |
311 | list_del_init(&buf->list); | |
312 | spin_unlock_irqrestore(&layer->irqlock, flags); | |
313 | } | |
a2c25b44 | 314 | |
13fc23d3 LP |
315 | static void vpbe_wait_prepare(struct vb2_queue *vq) |
316 | { | |
317 | struct vpbe_fh *fh = vb2_get_drv_priv(vq); | |
318 | struct vpbe_layer *layer = fh->layer; | |
319 | ||
320 | mutex_unlock(&layer->opslock); | |
a2c25b44 MH |
321 | } |
322 | ||
13fc23d3 LP |
323 | static void vpbe_wait_finish(struct vb2_queue *vq) |
324 | { | |
325 | struct vpbe_fh *fh = vb2_get_drv_priv(vq); | |
326 | struct vpbe_layer *layer = fh->layer; | |
327 | ||
328 | mutex_lock(&layer->opslock); | |
329 | } | |
330 | ||
331 | static int vpbe_buffer_init(struct vb2_buffer *vb) | |
332 | { | |
333 | struct vpbe_disp_buffer *buf = container_of(vb, | |
334 | struct vpbe_disp_buffer, vb); | |
335 | ||
336 | INIT_LIST_HEAD(&buf->list); | |
337 | return 0; | |
338 | } | |
339 | ||
340 | static int vpbe_start_streaming(struct vb2_queue *vq, unsigned int count) | |
341 | { | |
342 | struct vpbe_fh *fh = vb2_get_drv_priv(vq); | |
343 | struct vpbe_layer *layer = fh->layer; | |
344 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
345 | int ret; | |
346 | ||
347 | /* If buffer queue is empty, return error */ | |
348 | if (list_empty(&layer->dma_queue)) { | |
349 | v4l2_err(&vpbe_dev->v4l2_dev, "buffer queue is empty\n"); | |
350 | return -EINVAL; | |
351 | } | |
352 | /* Get the next frame from the buffer queue */ | |
353 | layer->next_frm = layer->cur_frm = list_entry(layer->dma_queue.next, | |
354 | struct vpbe_disp_buffer, list); | |
355 | /* Remove buffer from the buffer queue */ | |
356 | list_del(&layer->cur_frm->list); | |
357 | /* Mark state of the current frame to active */ | |
358 | layer->cur_frm->vb.state = VB2_BUF_STATE_ACTIVE; | |
359 | /* Initialize field_id and started member */ | |
360 | layer->field_id = 0; | |
361 | ||
362 | /* Set parameters in OSD and VENC */ | |
363 | ret = vpbe_set_osd_display_params(fh->disp_dev, layer); | |
364 | if (ret < 0) | |
365 | return ret; | |
366 | ||
367 | /* | |
368 | * if request format is yuv420 semiplanar, need to | |
369 | * enable both video windows | |
370 | */ | |
371 | layer->started = 1; | |
372 | layer->layer_first_int = 1; | |
373 | ||
374 | return ret; | |
375 | } | |
376 | ||
377 | static int vpbe_stop_streaming(struct vb2_queue *vq) | |
378 | { | |
379 | struct vpbe_fh *fh = vb2_get_drv_priv(vq); | |
380 | struct vpbe_layer *layer = fh->layer; | |
381 | ||
382 | if (!vb2_is_streaming(vq)) | |
383 | return 0; | |
384 | ||
385 | /* release all active buffers */ | |
386 | while (!list_empty(&layer->dma_queue)) { | |
387 | layer->next_frm = list_entry(layer->dma_queue.next, | |
388 | struct vpbe_disp_buffer, list); | |
389 | list_del(&layer->next_frm->list); | |
390 | vb2_buffer_done(&layer->next_frm->vb, VB2_BUF_STATE_ERROR); | |
391 | } | |
392 | ||
393 | return 0; | |
394 | } | |
395 | ||
396 | static struct vb2_ops video_qops = { | |
397 | .queue_setup = vpbe_buffer_queue_setup, | |
398 | .wait_prepare = vpbe_wait_prepare, | |
399 | .wait_finish = vpbe_wait_finish, | |
400 | .buf_init = vpbe_buffer_init, | |
a2c25b44 | 401 | .buf_prepare = vpbe_buffer_prepare, |
13fc23d3 LP |
402 | .start_streaming = vpbe_start_streaming, |
403 | .stop_streaming = vpbe_stop_streaming, | |
404 | .buf_cleanup = vpbe_buf_cleanup, | |
a2c25b44 | 405 | .buf_queue = vpbe_buffer_queue, |
a2c25b44 MH |
406 | }; |
407 | ||
408 | static | |
409 | struct vpbe_layer* | |
410 | _vpbe_display_get_other_win_layer(struct vpbe_display *disp_dev, | |
411 | struct vpbe_layer *layer) | |
412 | { | |
413 | enum vpbe_display_device_id thiswin, otherwin; | |
414 | thiswin = layer->device_id; | |
415 | ||
416 | otherwin = (thiswin == VPBE_DISPLAY_DEVICE_0) ? | |
417 | VPBE_DISPLAY_DEVICE_1 : VPBE_DISPLAY_DEVICE_0; | |
418 | return disp_dev->dev[otherwin]; | |
419 | } | |
420 | ||
421 | static int vpbe_set_osd_display_params(struct vpbe_display *disp_dev, | |
422 | struct vpbe_layer *layer) | |
423 | { | |
424 | struct osd_layer_config *cfg = &layer->layer_info.config; | |
425 | struct osd_state *osd_device = disp_dev->osd_device; | |
426 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
427 | unsigned long addr; | |
428 | int ret; | |
429 | ||
13fc23d3 | 430 | addr = vb2_dma_contig_plane_dma_addr(&layer->cur_frm->vb, 0); |
a2c25b44 MH |
431 | /* Set address in the display registers */ |
432 | osd_device->ops.start_layer(osd_device, | |
433 | layer->layer_info.id, | |
434 | addr, | |
435 | disp_dev->cbcr_ofst); | |
436 | ||
437 | ret = osd_device->ops.enable_layer(osd_device, | |
438 | layer->layer_info.id, 0); | |
439 | if (ret < 0) { | |
440 | v4l2_err(&vpbe_dev->v4l2_dev, | |
441 | "Error in enabling osd window layer 0\n"); | |
442 | return -1; | |
443 | } | |
444 | ||
445 | /* Enable the window */ | |
446 | layer->layer_info.enable = 1; | |
447 | if (cfg->pixfmt == PIXFMT_NV12) { | |
448 | struct vpbe_layer *otherlayer = | |
449 | _vpbe_display_get_other_win_layer(disp_dev, layer); | |
450 | ||
451 | ret = osd_device->ops.enable_layer(osd_device, | |
452 | otherlayer->layer_info.id, 1); | |
453 | if (ret < 0) { | |
454 | v4l2_err(&vpbe_dev->v4l2_dev, | |
455 | "Error in enabling osd window layer 1\n"); | |
456 | return -1; | |
457 | } | |
458 | otherlayer->layer_info.enable = 1; | |
459 | } | |
460 | return 0; | |
461 | } | |
462 | ||
463 | static void | |
464 | vpbe_disp_calculate_scale_factor(struct vpbe_display *disp_dev, | |
465 | struct vpbe_layer *layer, | |
466 | int expected_xsize, int expected_ysize) | |
467 | { | |
468 | struct display_layer_info *layer_info = &layer->layer_info; | |
469 | struct v4l2_pix_format *pixfmt = &layer->pix_fmt; | |
470 | struct osd_layer_config *cfg = &layer->layer_info.config; | |
471 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
472 | int calculated_xsize; | |
473 | int h_exp = 0; | |
474 | int v_exp = 0; | |
475 | int h_scale; | |
476 | int v_scale; | |
477 | ||
36864082 | 478 | v4l2_std_id standard_id = vpbe_dev->current_timings.std_id; |
a2c25b44 MH |
479 | |
480 | /* | |
481 | * Application initially set the image format. Current display | |
482 | * size is obtained from the vpbe display controller. expected_xsize | |
483 | * and expected_ysize are set through S_CROP ioctl. Based on this, | |
484 | * driver will calculate the scale factors for vertical and | |
485 | * horizontal direction so that the image is displayed scaled | |
486 | * and expanded. Application uses expansion to display the image | |
487 | * in a square pixel. Otherwise it is displayed using displays | |
488 | * pixel aspect ratio.It is expected that application chooses | |
489 | * the crop coordinates for cropped or scaled display. if crop | |
490 | * size is less than the image size, it is displayed cropped or | |
491 | * it is displayed scaled and/or expanded. | |
492 | * | |
493 | * to begin with, set the crop window same as expected. Later we | |
494 | * will override with scaled window size | |
495 | */ | |
496 | ||
497 | cfg->xsize = pixfmt->width; | |
498 | cfg->ysize = pixfmt->height; | |
499 | layer_info->h_zoom = ZOOM_X1; /* no horizontal zoom */ | |
500 | layer_info->v_zoom = ZOOM_X1; /* no horizontal zoom */ | |
501 | layer_info->h_exp = H_EXP_OFF; /* no horizontal zoom */ | |
502 | layer_info->v_exp = V_EXP_OFF; /* no horizontal zoom */ | |
503 | ||
504 | if (pixfmt->width < expected_xsize) { | |
505 | h_scale = vpbe_dev->current_timings.xres / pixfmt->width; | |
506 | if (h_scale < 2) | |
507 | h_scale = 1; | |
508 | else if (h_scale >= 4) | |
509 | h_scale = 4; | |
510 | else | |
511 | h_scale = 2; | |
512 | cfg->xsize *= h_scale; | |
513 | if (cfg->xsize < expected_xsize) { | |
514 | if ((standard_id & V4L2_STD_525_60) || | |
515 | (standard_id & V4L2_STD_625_50)) { | |
516 | calculated_xsize = (cfg->xsize * | |
517 | VPBE_DISPLAY_H_EXP_RATIO_N) / | |
518 | VPBE_DISPLAY_H_EXP_RATIO_D; | |
519 | if (calculated_xsize <= expected_xsize) { | |
520 | h_exp = 1; | |
521 | cfg->xsize = calculated_xsize; | |
522 | } | |
523 | } | |
524 | } | |
525 | if (h_scale == 2) | |
526 | layer_info->h_zoom = ZOOM_X2; | |
527 | else if (h_scale == 4) | |
528 | layer_info->h_zoom = ZOOM_X4; | |
529 | if (h_exp) | |
530 | layer_info->h_exp = H_EXP_9_OVER_8; | |
531 | } else { | |
532 | /* no scaling, only cropping. Set display area to crop area */ | |
533 | cfg->xsize = expected_xsize; | |
534 | } | |
535 | ||
536 | if (pixfmt->height < expected_ysize) { | |
537 | v_scale = expected_ysize / pixfmt->height; | |
538 | if (v_scale < 2) | |
539 | v_scale = 1; | |
540 | else if (v_scale >= 4) | |
541 | v_scale = 4; | |
542 | else | |
543 | v_scale = 2; | |
544 | cfg->ysize *= v_scale; | |
545 | if (cfg->ysize < expected_ysize) { | |
546 | if ((standard_id & V4L2_STD_625_50)) { | |
547 | calculated_xsize = (cfg->ysize * | |
548 | VPBE_DISPLAY_V_EXP_RATIO_N) / | |
549 | VPBE_DISPLAY_V_EXP_RATIO_D; | |
550 | if (calculated_xsize <= expected_ysize) { | |
551 | v_exp = 1; | |
552 | cfg->ysize = calculated_xsize; | |
553 | } | |
554 | } | |
555 | } | |
556 | if (v_scale == 2) | |
557 | layer_info->v_zoom = ZOOM_X2; | |
558 | else if (v_scale == 4) | |
559 | layer_info->v_zoom = ZOOM_X4; | |
560 | if (v_exp) | |
561 | layer_info->h_exp = V_EXP_6_OVER_5; | |
562 | } else { | |
563 | /* no scaling, only cropping. Set display area to crop area */ | |
564 | cfg->ysize = expected_ysize; | |
565 | } | |
566 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
567 | "crop display xsize = %d, ysize = %d\n", | |
568 | cfg->xsize, cfg->ysize); | |
569 | } | |
570 | ||
571 | static void vpbe_disp_adj_position(struct vpbe_display *disp_dev, | |
572 | struct vpbe_layer *layer, | |
573 | int top, int left) | |
574 | { | |
575 | struct osd_layer_config *cfg = &layer->layer_info.config; | |
576 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
577 | ||
578 | cfg->xpos = min((unsigned int)left, | |
579 | vpbe_dev->current_timings.xres - cfg->xsize); | |
580 | cfg->ypos = min((unsigned int)top, | |
581 | vpbe_dev->current_timings.yres - cfg->ysize); | |
582 | ||
583 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
584 | "new xpos = %d, ypos = %d\n", | |
585 | cfg->xpos, cfg->ypos); | |
586 | } | |
587 | ||
588 | static void vpbe_disp_check_window_params(struct vpbe_display *disp_dev, | |
589 | struct v4l2_rect *c) | |
590 | { | |
591 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
592 | ||
593 | if ((c->width == 0) || | |
594 | ((c->width + c->left) > vpbe_dev->current_timings.xres)) | |
595 | c->width = vpbe_dev->current_timings.xres - c->left; | |
596 | ||
597 | if ((c->height == 0) || ((c->height + c->top) > | |
598 | vpbe_dev->current_timings.yres)) | |
599 | c->height = vpbe_dev->current_timings.yres - c->top; | |
600 | ||
601 | /* window height must be even for interlaced display */ | |
602 | if (vpbe_dev->current_timings.interlaced) | |
603 | c->height &= (~0x01); | |
604 | ||
605 | } | |
606 | ||
607 | /** | |
608 | * vpbe_try_format() | |
609 | * If user application provides width and height, and have bytesperline set | |
610 | * to zero, driver calculates bytesperline and sizeimage based on hardware | |
611 | * limits. | |
612 | */ | |
613 | static int vpbe_try_format(struct vpbe_display *disp_dev, | |
614 | struct v4l2_pix_format *pixfmt, int check) | |
615 | { | |
616 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
617 | int min_height = 1; | |
618 | int min_width = 32; | |
619 | int max_height; | |
620 | int max_width; | |
621 | int bpp; | |
622 | ||
623 | if ((pixfmt->pixelformat != V4L2_PIX_FMT_UYVY) && | |
624 | (pixfmt->pixelformat != V4L2_PIX_FMT_NV12)) | |
625 | /* choose default as V4L2_PIX_FMT_UYVY */ | |
626 | pixfmt->pixelformat = V4L2_PIX_FMT_UYVY; | |
627 | ||
628 | /* Check the field format */ | |
629 | if ((pixfmt->field != V4L2_FIELD_INTERLACED) && | |
630 | (pixfmt->field != V4L2_FIELD_NONE)) { | |
631 | if (vpbe_dev->current_timings.interlaced) | |
632 | pixfmt->field = V4L2_FIELD_INTERLACED; | |
633 | else | |
634 | pixfmt->field = V4L2_FIELD_NONE; | |
635 | } | |
636 | ||
637 | if (pixfmt->field == V4L2_FIELD_INTERLACED) | |
638 | min_height = 2; | |
639 | ||
640 | if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) | |
641 | bpp = 1; | |
642 | else | |
643 | bpp = 2; | |
644 | ||
645 | max_width = vpbe_dev->current_timings.xres; | |
646 | max_height = vpbe_dev->current_timings.yres; | |
647 | ||
648 | min_width /= bpp; | |
649 | ||
650 | if (!pixfmt->width || (pixfmt->width < min_width) || | |
651 | (pixfmt->width > max_width)) { | |
652 | pixfmt->width = vpbe_dev->current_timings.xres; | |
653 | } | |
654 | ||
655 | if (!pixfmt->height || (pixfmt->height < min_height) || | |
656 | (pixfmt->height > max_height)) { | |
657 | pixfmt->height = vpbe_dev->current_timings.yres; | |
658 | } | |
659 | ||
660 | if (pixfmt->bytesperline < (pixfmt->width * bpp)) | |
661 | pixfmt->bytesperline = pixfmt->width * bpp; | |
662 | ||
663 | /* Make the bytesperline 32 byte aligned */ | |
664 | pixfmt->bytesperline = ((pixfmt->width * bpp + 31) & ~31); | |
665 | ||
666 | if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) | |
667 | pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height + | |
668 | (pixfmt->bytesperline * pixfmt->height >> 1); | |
669 | else | |
670 | pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; | |
671 | ||
672 | return 0; | |
673 | } | |
674 | ||
675 | static int vpbe_display_g_priority(struct file *file, void *priv, | |
676 | enum v4l2_priority *p) | |
677 | { | |
678 | struct vpbe_fh *fh = file->private_data; | |
679 | struct vpbe_layer *layer = fh->layer; | |
680 | ||
681 | *p = v4l2_prio_max(&layer->prio); | |
682 | ||
683 | return 0; | |
684 | } | |
685 | ||
686 | static int vpbe_display_s_priority(struct file *file, void *priv, | |
687 | enum v4l2_priority p) | |
688 | { | |
689 | struct vpbe_fh *fh = file->private_data; | |
690 | struct vpbe_layer *layer = fh->layer; | |
691 | int ret; | |
692 | ||
693 | ret = v4l2_prio_change(&layer->prio, &fh->prio, p); | |
694 | ||
695 | return ret; | |
696 | } | |
697 | ||
698 | static int vpbe_display_querycap(struct file *file, void *priv, | |
699 | struct v4l2_capability *cap) | |
700 | { | |
701 | struct vpbe_fh *fh = file->private_data; | |
702 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
703 | ||
704 | cap->version = VPBE_DISPLAY_VERSION_CODE; | |
d046628d LP |
705 | cap->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING; |
706 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; | |
707 | snprintf(cap->driver, sizeof(cap->driver), "%s", | |
708 | dev_name(vpbe_dev->pdev)); | |
709 | snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", | |
710 | dev_name(vpbe_dev->pdev)); | |
a2c25b44 MH |
711 | strlcpy(cap->card, vpbe_dev->cfg->module_name, sizeof(cap->card)); |
712 | ||
713 | return 0; | |
714 | } | |
715 | ||
716 | static int vpbe_display_s_crop(struct file *file, void *priv, | |
4f996594 | 717 | const struct v4l2_crop *crop) |
a2c25b44 MH |
718 | { |
719 | struct vpbe_fh *fh = file->private_data; | |
720 | struct vpbe_layer *layer = fh->layer; | |
721 | struct vpbe_display *disp_dev = fh->disp_dev; | |
722 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
723 | struct osd_layer_config *cfg = &layer->layer_info.config; | |
724 | struct osd_state *osd_device = disp_dev->osd_device; | |
fabc4e94 | 725 | struct v4l2_rect rect = crop->c; |
a2c25b44 MH |
726 | int ret; |
727 | ||
728 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
729 | "VIDIOC_S_CROP, layer id = %d\n", layer->device_id); | |
730 | ||
731 | if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) { | |
732 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buf type\n"); | |
733 | return -EINVAL; | |
734 | } | |
735 | ||
fabc4e94 LP |
736 | if (rect.top < 0) |
737 | rect.top = 0; | |
738 | if (rect.left < 0) | |
739 | rect.left = 0; | |
a2c25b44 | 740 | |
fabc4e94 | 741 | vpbe_disp_check_window_params(disp_dev, &rect); |
a2c25b44 MH |
742 | |
743 | osd_device->ops.get_layer_config(osd_device, | |
744 | layer->layer_info.id, cfg); | |
745 | ||
746 | vpbe_disp_calculate_scale_factor(disp_dev, layer, | |
fabc4e94 LP |
747 | rect.width, |
748 | rect.height); | |
749 | vpbe_disp_adj_position(disp_dev, layer, rect.top, | |
750 | rect.left); | |
a2c25b44 MH |
751 | ret = osd_device->ops.set_layer_config(osd_device, |
752 | layer->layer_info.id, cfg); | |
753 | if (ret < 0) { | |
754 | v4l2_err(&vpbe_dev->v4l2_dev, | |
755 | "Error in set layer config:\n"); | |
756 | return -EINVAL; | |
757 | } | |
758 | ||
759 | /* apply zooming and h or v expansion */ | |
760 | osd_device->ops.set_zoom(osd_device, | |
761 | layer->layer_info.id, | |
762 | layer->layer_info.h_zoom, | |
763 | layer->layer_info.v_zoom); | |
764 | ret = osd_device->ops.set_vid_expansion(osd_device, | |
765 | layer->layer_info.h_exp, | |
766 | layer->layer_info.v_exp); | |
767 | if (ret < 0) { | |
768 | v4l2_err(&vpbe_dev->v4l2_dev, | |
769 | "Error in set vid expansion:\n"); | |
770 | return -EINVAL; | |
771 | } | |
772 | ||
773 | if ((layer->layer_info.h_zoom != ZOOM_X1) || | |
774 | (layer->layer_info.v_zoom != ZOOM_X1) || | |
775 | (layer->layer_info.h_exp != H_EXP_OFF) || | |
776 | (layer->layer_info.v_exp != V_EXP_OFF)) | |
777 | /* Enable expansion filter */ | |
778 | osd_device->ops.set_interpolation_filter(osd_device, 1); | |
779 | else | |
780 | osd_device->ops.set_interpolation_filter(osd_device, 0); | |
781 | ||
782 | return 0; | |
783 | } | |
784 | ||
785 | static int vpbe_display_g_crop(struct file *file, void *priv, | |
786 | struct v4l2_crop *crop) | |
787 | { | |
788 | struct vpbe_fh *fh = file->private_data; | |
789 | struct vpbe_layer *layer = fh->layer; | |
790 | struct osd_layer_config *cfg = &layer->layer_info.config; | |
791 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
792 | struct osd_state *osd_device = fh->disp_dev->osd_device; | |
793 | struct v4l2_rect *rect = &crop->c; | |
794 | int ret; | |
795 | ||
796 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
797 | "VIDIOC_G_CROP, layer id = %d\n", | |
798 | layer->device_id); | |
799 | ||
800 | if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) { | |
801 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buf type\n"); | |
802 | ret = -EINVAL; | |
803 | } | |
804 | osd_device->ops.get_layer_config(osd_device, | |
805 | layer->layer_info.id, cfg); | |
806 | rect->top = cfg->ypos; | |
807 | rect->left = cfg->xpos; | |
808 | rect->width = cfg->xsize; | |
809 | rect->height = cfg->ysize; | |
810 | ||
811 | return 0; | |
812 | } | |
813 | ||
814 | static int vpbe_display_cropcap(struct file *file, void *priv, | |
815 | struct v4l2_cropcap *cropcap) | |
816 | { | |
817 | struct vpbe_fh *fh = file->private_data; | |
818 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
819 | ||
820 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_CROPCAP ioctl\n"); | |
821 | ||
822 | cropcap->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
823 | cropcap->bounds.left = 0; | |
824 | cropcap->bounds.top = 0; | |
825 | cropcap->bounds.width = vpbe_dev->current_timings.xres; | |
826 | cropcap->bounds.height = vpbe_dev->current_timings.yres; | |
827 | cropcap->pixelaspect = vpbe_dev->current_timings.aspect; | |
828 | cropcap->defrect = cropcap->bounds; | |
829 | return 0; | |
830 | } | |
831 | ||
832 | static int vpbe_display_g_fmt(struct file *file, void *priv, | |
833 | struct v4l2_format *fmt) | |
834 | { | |
835 | struct vpbe_fh *fh = file->private_data; | |
836 | struct vpbe_layer *layer = fh->layer; | |
837 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
838 | ||
839 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
840 | "VIDIOC_G_FMT, layer id = %d\n", | |
841 | layer->device_id); | |
842 | ||
843 | /* If buffer type is video output */ | |
844 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != fmt->type) { | |
845 | v4l2_err(&vpbe_dev->v4l2_dev, "invalid type\n"); | |
846 | return -EINVAL; | |
847 | } | |
848 | /* Fill in the information about format */ | |
849 | fmt->fmt.pix = layer->pix_fmt; | |
850 | ||
851 | return 0; | |
852 | } | |
853 | ||
854 | static int vpbe_display_enum_fmt(struct file *file, void *priv, | |
855 | struct v4l2_fmtdesc *fmt) | |
856 | { | |
857 | struct vpbe_fh *fh = file->private_data; | |
858 | struct vpbe_layer *layer = fh->layer; | |
859 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
860 | unsigned int index = 0; | |
861 | ||
862 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
863 | "VIDIOC_ENUM_FMT, layer id = %d\n", | |
864 | layer->device_id); | |
865 | if (fmt->index > 1) { | |
866 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid format index\n"); | |
867 | return -EINVAL; | |
868 | } | |
869 | ||
870 | /* Fill in the information about format */ | |
871 | index = fmt->index; | |
872 | memset(fmt, 0, sizeof(*fmt)); | |
873 | fmt->index = index; | |
874 | fmt->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
875 | if (index == 0) { | |
876 | strcpy(fmt->description, "YUV 4:2:2 - UYVY"); | |
877 | fmt->pixelformat = V4L2_PIX_FMT_UYVY; | |
878 | } else { | |
879 | strcpy(fmt->description, "Y/CbCr 4:2:0"); | |
880 | fmt->pixelformat = V4L2_PIX_FMT_NV12; | |
881 | } | |
882 | ||
883 | return 0; | |
884 | } | |
885 | ||
886 | static int vpbe_display_s_fmt(struct file *file, void *priv, | |
887 | struct v4l2_format *fmt) | |
888 | { | |
889 | struct vpbe_fh *fh = file->private_data; | |
890 | struct vpbe_layer *layer = fh->layer; | |
891 | struct vpbe_display *disp_dev = fh->disp_dev; | |
892 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
893 | struct osd_layer_config *cfg = &layer->layer_info.config; | |
894 | struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; | |
895 | struct osd_state *osd_device = disp_dev->osd_device; | |
896 | int ret; | |
897 | ||
898 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
899 | "VIDIOC_S_FMT, layer id = %d\n", | |
900 | layer->device_id); | |
901 | ||
902 | /* If streaming is started, return error */ | |
903 | if (layer->started) { | |
904 | v4l2_err(&vpbe_dev->v4l2_dev, "Streaming is started\n"); | |
905 | return -EBUSY; | |
906 | } | |
907 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != fmt->type) { | |
908 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "invalid type\n"); | |
909 | return -EINVAL; | |
910 | } | |
911 | /* Check for valid pixel format */ | |
912 | ret = vpbe_try_format(disp_dev, pixfmt, 1); | |
913 | if (ret) | |
914 | return ret; | |
915 | ||
916 | /* YUV420 is requested, check availability of the | |
917 | other video window */ | |
918 | ||
919 | layer->pix_fmt = *pixfmt; | |
920 | ||
921 | /* Get osd layer config */ | |
922 | osd_device->ops.get_layer_config(osd_device, | |
923 | layer->layer_info.id, cfg); | |
924 | /* Store the pixel format in the layer object */ | |
925 | cfg->xsize = pixfmt->width; | |
926 | cfg->ysize = pixfmt->height; | |
927 | cfg->line_length = pixfmt->bytesperline; | |
928 | cfg->ypos = 0; | |
929 | cfg->xpos = 0; | |
930 | cfg->interlaced = vpbe_dev->current_timings.interlaced; | |
931 | ||
932 | if (V4L2_PIX_FMT_UYVY == pixfmt->pixelformat) | |
933 | cfg->pixfmt = PIXFMT_YCbCrI; | |
934 | ||
935 | /* Change of the default pixel format for both video windows */ | |
936 | if (V4L2_PIX_FMT_NV12 == pixfmt->pixelformat) { | |
937 | struct vpbe_layer *otherlayer; | |
938 | cfg->pixfmt = PIXFMT_NV12; | |
939 | otherlayer = _vpbe_display_get_other_win_layer(disp_dev, | |
940 | layer); | |
941 | otherlayer->layer_info.config.pixfmt = PIXFMT_NV12; | |
942 | } | |
943 | ||
944 | /* Set the layer config in the osd window */ | |
945 | ret = osd_device->ops.set_layer_config(osd_device, | |
946 | layer->layer_info.id, cfg); | |
947 | if (ret < 0) { | |
948 | v4l2_err(&vpbe_dev->v4l2_dev, | |
949 | "Error in S_FMT params:\n"); | |
950 | return -EINVAL; | |
951 | } | |
952 | ||
953 | /* Readback and fill the local copy of current pix format */ | |
954 | osd_device->ops.get_layer_config(osd_device, | |
955 | layer->layer_info.id, cfg); | |
956 | ||
957 | return 0; | |
958 | } | |
959 | ||
960 | static int vpbe_display_try_fmt(struct file *file, void *priv, | |
961 | struct v4l2_format *fmt) | |
962 | { | |
963 | struct vpbe_fh *fh = file->private_data; | |
964 | struct vpbe_display *disp_dev = fh->disp_dev; | |
965 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
966 | struct v4l2_pix_format *pixfmt = &fmt->fmt.pix; | |
967 | ||
968 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_TRY_FMT\n"); | |
969 | ||
970 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != fmt->type) { | |
971 | v4l2_err(&vpbe_dev->v4l2_dev, "invalid type\n"); | |
972 | return -EINVAL; | |
973 | } | |
974 | ||
975 | /* Check for valid field format */ | |
976 | return vpbe_try_format(disp_dev, pixfmt, 0); | |
977 | ||
978 | } | |
979 | ||
980 | /** | |
981 | * vpbe_display_s_std - Set the given standard in the encoder | |
982 | * | |
983 | * Sets the standard if supported by the current encoder. Return the status. | |
984 | * 0 - success & -EINVAL on error | |
985 | */ | |
986 | static int vpbe_display_s_std(struct file *file, void *priv, | |
987 | v4l2_std_id *std_id) | |
988 | { | |
989 | struct vpbe_fh *fh = priv; | |
990 | struct vpbe_layer *layer = fh->layer; | |
991 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
992 | int ret; | |
993 | ||
994 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_S_STD\n"); | |
995 | ||
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.s_std) { | |
1002 | ret = vpbe_dev->ops.s_std(vpbe_dev, std_id); | |
1003 | if (ret) { | |
1004 | v4l2_err(&vpbe_dev->v4l2_dev, | |
1005 | "Failed to set standard for sub devices\n"); | |
1006 | return -EINVAL; | |
1007 | } | |
1008 | } else { | |
1009 | return -EINVAL; | |
1010 | } | |
1011 | ||
1012 | return 0; | |
1013 | } | |
1014 | ||
1015 | /** | |
1016 | * vpbe_display_g_std - Get the standard in the current encoder | |
1017 | * | |
1018 | * Get the standard in the current encoder. Return the status. 0 - success | |
1019 | * -EINVAL on error | |
1020 | */ | |
1021 | static int vpbe_display_g_std(struct file *file, void *priv, | |
1022 | v4l2_std_id *std_id) | |
1023 | { | |
1024 | struct vpbe_fh *fh = priv; | |
1025 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1026 | ||
1027 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_G_STD\n"); | |
1028 | ||
1029 | /* Get the standard from the current encoder */ | |
1030 | if (vpbe_dev->current_timings.timings_type & VPBE_ENC_STD) { | |
36864082 | 1031 | *std_id = vpbe_dev->current_timings.std_id; |
a2c25b44 MH |
1032 | return 0; |
1033 | } | |
1034 | ||
1035 | return -EINVAL; | |
1036 | } | |
1037 | ||
1038 | /** | |
1039 | * vpbe_display_enum_output - enumerate outputs | |
1040 | * | |
1041 | * Enumerates the outputs available at the vpbe display | |
1042 | * returns the status, -EINVAL if end of output list | |
1043 | */ | |
1044 | static int vpbe_display_enum_output(struct file *file, void *priv, | |
1045 | struct v4l2_output *output) | |
1046 | { | |
1047 | struct vpbe_fh *fh = priv; | |
1048 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1049 | int ret; | |
1050 | ||
1051 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_ENUM_OUTPUT\n"); | |
1052 | ||
1053 | /* Enumerate outputs */ | |
1054 | ||
1055 | if (NULL == vpbe_dev->ops.enum_outputs) | |
1056 | return -EINVAL; | |
1057 | ||
1058 | ret = vpbe_dev->ops.enum_outputs(vpbe_dev, output); | |
1059 | if (ret) { | |
1060 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
1061 | "Failed to enumerate outputs\n"); | |
1062 | return -EINVAL; | |
1063 | } | |
1064 | ||
1065 | return 0; | |
1066 | } | |
1067 | ||
1068 | /** | |
1069 | * vpbe_display_s_output - Set output to | |
1070 | * the output specified by the index | |
1071 | */ | |
1072 | static int vpbe_display_s_output(struct file *file, void *priv, | |
1073 | unsigned int i) | |
1074 | { | |
1075 | struct vpbe_fh *fh = priv; | |
1076 | struct vpbe_layer *layer = fh->layer; | |
1077 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1078 | int ret; | |
1079 | ||
1080 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_S_OUTPUT\n"); | |
1081 | /* If streaming is started, return error */ | |
1082 | if (layer->started) { | |
1083 | v4l2_err(&vpbe_dev->v4l2_dev, "Streaming is started\n"); | |
1084 | return -EBUSY; | |
1085 | } | |
1086 | if (NULL == vpbe_dev->ops.set_output) | |
1087 | return -EINVAL; | |
1088 | ||
1089 | ret = vpbe_dev->ops.set_output(vpbe_dev, i); | |
1090 | if (ret) { | |
1091 | v4l2_err(&vpbe_dev->v4l2_dev, | |
1092 | "Failed to set output for sub devices\n"); | |
1093 | return -EINVAL; | |
1094 | } | |
1095 | ||
1096 | return 0; | |
1097 | } | |
1098 | ||
1099 | /** | |
1100 | * vpbe_display_g_output - Get output from subdevice | |
1101 | * for a given by the index | |
1102 | */ | |
1103 | static int vpbe_display_g_output(struct file *file, void *priv, | |
1104 | unsigned int *i) | |
1105 | { | |
1106 | struct vpbe_fh *fh = priv; | |
1107 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1108 | ||
1109 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_G_OUTPUT\n"); | |
1110 | /* Get the standard from the current encoder */ | |
1111 | *i = vpbe_dev->current_out_index; | |
1112 | ||
1113 | return 0; | |
1114 | } | |
1115 | ||
1116 | /** | |
36864082 | 1117 | * vpbe_display_enum_dv_timings - Enumerate the dv timings |
a2c25b44 | 1118 | * |
36864082 | 1119 | * enum the timings in the current encoder. Return the status. 0 - success |
a2c25b44 MH |
1120 | * -EINVAL on error |
1121 | */ | |
1122 | static int | |
36864082 HV |
1123 | vpbe_display_enum_dv_timings(struct file *file, void *priv, |
1124 | struct v4l2_enum_dv_timings *timings) | |
a2c25b44 MH |
1125 | { |
1126 | struct vpbe_fh *fh = priv; | |
1127 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1128 | int ret; | |
1129 | ||
36864082 | 1130 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_ENUM_DV_TIMINGS\n"); |
a2c25b44 MH |
1131 | |
1132 | /* Enumerate outputs */ | |
36864082 | 1133 | if (NULL == vpbe_dev->ops.enum_dv_timings) |
a2c25b44 MH |
1134 | return -EINVAL; |
1135 | ||
36864082 | 1136 | ret = vpbe_dev->ops.enum_dv_timings(vpbe_dev, timings); |
a2c25b44 MH |
1137 | if (ret) { |
1138 | v4l2_err(&vpbe_dev->v4l2_dev, | |
36864082 | 1139 | "Failed to enumerate dv timings info\n"); |
a2c25b44 MH |
1140 | return -EINVAL; |
1141 | } | |
1142 | ||
1143 | return 0; | |
1144 | } | |
1145 | ||
1146 | /** | |
36864082 | 1147 | * vpbe_display_s_dv_timings - Set the dv timings |
a2c25b44 | 1148 | * |
36864082 | 1149 | * Set the timings in the current encoder. Return the status. 0 - success |
a2c25b44 MH |
1150 | * -EINVAL on error |
1151 | */ | |
1152 | static int | |
36864082 HV |
1153 | vpbe_display_s_dv_timings(struct file *file, void *priv, |
1154 | struct v4l2_dv_timings *timings) | |
a2c25b44 MH |
1155 | { |
1156 | struct vpbe_fh *fh = priv; | |
1157 | struct vpbe_layer *layer = fh->layer; | |
1158 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1159 | int ret; | |
1160 | ||
36864082 | 1161 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_S_DV_TIMINGS\n"); |
a2c25b44 MH |
1162 | |
1163 | ||
1164 | /* If streaming is started, return error */ | |
1165 | if (layer->started) { | |
1166 | v4l2_err(&vpbe_dev->v4l2_dev, "Streaming is started\n"); | |
1167 | return -EBUSY; | |
1168 | } | |
1169 | ||
1170 | /* Set the given standard in the encoder */ | |
36864082 | 1171 | if (!vpbe_dev->ops.s_dv_timings) |
a2c25b44 MH |
1172 | return -EINVAL; |
1173 | ||
36864082 | 1174 | ret = vpbe_dev->ops.s_dv_timings(vpbe_dev, timings); |
a2c25b44 MH |
1175 | if (ret) { |
1176 | v4l2_err(&vpbe_dev->v4l2_dev, | |
36864082 | 1177 | "Failed to set the dv timings info\n"); |
a2c25b44 MH |
1178 | return -EINVAL; |
1179 | } | |
1180 | /* set the current norm to zero to be consistent. If STD is used | |
1181 | * v4l2 layer will set the norm properly on successful s_std call | |
1182 | */ | |
1183 | layer->video_dev.current_norm = 0; | |
1184 | ||
1185 | return 0; | |
1186 | } | |
1187 | ||
1188 | /** | |
36864082 | 1189 | * vpbe_display_g_dv_timings - Set the dv timings |
a2c25b44 | 1190 | * |
36864082 | 1191 | * Get the timings in the current encoder. Return the status. 0 - success |
a2c25b44 MH |
1192 | * -EINVAL on error |
1193 | */ | |
1194 | static int | |
36864082 HV |
1195 | vpbe_display_g_dv_timings(struct file *file, void *priv, |
1196 | struct v4l2_dv_timings *dv_timings) | |
a2c25b44 MH |
1197 | { |
1198 | struct vpbe_fh *fh = priv; | |
1199 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1200 | ||
36864082 | 1201 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_G_DV_TIMINGS\n"); |
a2c25b44 MH |
1202 | |
1203 | /* Get the given standard in the encoder */ | |
1204 | ||
1205 | if (vpbe_dev->current_timings.timings_type & | |
36864082 HV |
1206 | VPBE_ENC_CUSTOM_TIMINGS) { |
1207 | *dv_timings = vpbe_dev->current_timings.dv_timings; | |
a2c25b44 MH |
1208 | } else { |
1209 | return -EINVAL; | |
1210 | } | |
1211 | ||
1212 | return 0; | |
1213 | } | |
1214 | ||
1215 | static int vpbe_display_streamoff(struct file *file, void *priv, | |
1216 | enum v4l2_buf_type buf_type) | |
1217 | { | |
1218 | struct vpbe_fh *fh = file->private_data; | |
1219 | struct vpbe_layer *layer = fh->layer; | |
1220 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1221 | struct osd_state *osd_device = fh->disp_dev->osd_device; | |
1222 | int ret; | |
1223 | ||
1224 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
1225 | "VIDIOC_STREAMOFF,layer id = %d\n", | |
1226 | layer->device_id); | |
1227 | ||
1228 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != buf_type) { | |
1229 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1230 | return -EINVAL; | |
1231 | } | |
1232 | ||
1233 | /* If io is allowed for this file handle, return error */ | |
1234 | if (!fh->io_allowed) { | |
1235 | v4l2_err(&vpbe_dev->v4l2_dev, "No io_allowed\n"); | |
1236 | return -EACCES; | |
1237 | } | |
1238 | ||
1239 | /* If streaming is not started, return error */ | |
1240 | if (!layer->started) { | |
1241 | v4l2_err(&vpbe_dev->v4l2_dev, "streaming not started in layer" | |
1242 | " id = %d\n", layer->device_id); | |
1243 | return -EINVAL; | |
1244 | } | |
1245 | ||
1246 | osd_device->ops.disable_layer(osd_device, | |
1247 | layer->layer_info.id); | |
1248 | layer->started = 0; | |
13fc23d3 | 1249 | ret = vb2_streamoff(&layer->buffer_queue, buf_type); |
a2c25b44 MH |
1250 | |
1251 | return ret; | |
1252 | } | |
1253 | ||
1254 | static int vpbe_display_streamon(struct file *file, void *priv, | |
1255 | enum v4l2_buf_type buf_type) | |
1256 | { | |
1257 | struct vpbe_fh *fh = file->private_data; | |
1258 | struct vpbe_layer *layer = fh->layer; | |
1259 | struct vpbe_display *disp_dev = fh->disp_dev; | |
1260 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1261 | struct osd_state *osd_device = disp_dev->osd_device; | |
1262 | int ret; | |
1263 | ||
1264 | osd_device->ops.disable_layer(osd_device, | |
1265 | layer->layer_info.id); | |
1266 | ||
1267 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "VIDIOC_STREAMON, layerid=%d\n", | |
1268 | layer->device_id); | |
1269 | ||
1270 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != buf_type) { | |
1271 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1272 | return -EINVAL; | |
1273 | } | |
1274 | ||
1275 | /* If file handle is not allowed IO, return error */ | |
1276 | if (!fh->io_allowed) { | |
1277 | v4l2_err(&vpbe_dev->v4l2_dev, "No io_allowed\n"); | |
1278 | return -EACCES; | |
1279 | } | |
1280 | /* If Streaming is already started, return error */ | |
1281 | if (layer->started) { | |
1282 | v4l2_err(&vpbe_dev->v4l2_dev, "layer is already streaming\n"); | |
1283 | return -EBUSY; | |
1284 | } | |
1285 | ||
1286 | /* | |
13fc23d3 | 1287 | * Call vb2_streamon to start streaming |
a2c25b44 MH |
1288 | * in videobuf |
1289 | */ | |
13fc23d3 | 1290 | ret = vb2_streamon(&layer->buffer_queue, buf_type); |
a2c25b44 MH |
1291 | if (ret) { |
1292 | v4l2_err(&vpbe_dev->v4l2_dev, | |
13fc23d3 | 1293 | "error in vb2_streamon\n"); |
a2c25b44 MH |
1294 | return ret; |
1295 | } | |
a2c25b44 MH |
1296 | return ret; |
1297 | } | |
1298 | ||
1299 | static int vpbe_display_dqbuf(struct file *file, void *priv, | |
1300 | struct v4l2_buffer *buf) | |
1301 | { | |
1302 | struct vpbe_fh *fh = file->private_data; | |
1303 | struct vpbe_layer *layer = fh->layer; | |
1304 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1305 | int ret; | |
1306 | ||
1307 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
1308 | "VIDIOC_DQBUF, layer id = %d\n", | |
1309 | layer->device_id); | |
1310 | ||
1311 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != buf->type) { | |
1312 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1313 | return -EINVAL; | |
1314 | } | |
1315 | /* If this file handle is not allowed to do IO, return error */ | |
1316 | if (!fh->io_allowed) { | |
1317 | v4l2_err(&vpbe_dev->v4l2_dev, "No io_allowed\n"); | |
1318 | return -EACCES; | |
1319 | } | |
1320 | if (file->f_flags & O_NONBLOCK) | |
1321 | /* Call videobuf_dqbuf for non blocking mode */ | |
13fc23d3 | 1322 | ret = vb2_dqbuf(&layer->buffer_queue, buf, 1); |
a2c25b44 MH |
1323 | else |
1324 | /* Call videobuf_dqbuf for blocking mode */ | |
13fc23d3 | 1325 | ret = vb2_dqbuf(&layer->buffer_queue, buf, 0); |
a2c25b44 MH |
1326 | |
1327 | return ret; | |
1328 | } | |
1329 | ||
1330 | static int vpbe_display_qbuf(struct file *file, void *priv, | |
1331 | struct v4l2_buffer *p) | |
1332 | { | |
1333 | struct vpbe_fh *fh = file->private_data; | |
1334 | struct vpbe_layer *layer = fh->layer; | |
1335 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1336 | ||
1337 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
1338 | "VIDIOC_QBUF, layer id = %d\n", | |
1339 | layer->device_id); | |
1340 | ||
1341 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != p->type) { | |
1342 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1343 | return -EINVAL; | |
1344 | } | |
1345 | ||
1346 | /* If this file handle is not allowed to do IO, return error */ | |
1347 | if (!fh->io_allowed) { | |
1348 | v4l2_err(&vpbe_dev->v4l2_dev, "No io_allowed\n"); | |
1349 | return -EACCES; | |
1350 | } | |
1351 | ||
13fc23d3 | 1352 | return vb2_qbuf(&layer->buffer_queue, p); |
a2c25b44 MH |
1353 | } |
1354 | ||
1355 | static int vpbe_display_querybuf(struct file *file, void *priv, | |
1356 | struct v4l2_buffer *buf) | |
1357 | { | |
1358 | struct vpbe_fh *fh = file->private_data; | |
1359 | struct vpbe_layer *layer = fh->layer; | |
1360 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
a2c25b44 MH |
1361 | |
1362 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
1363 | "VIDIOC_QUERYBUF, layer id = %d\n", | |
1364 | layer->device_id); | |
1365 | ||
1366 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != buf->type) { | |
1367 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1368 | return -EINVAL; | |
1369 | } | |
13fc23d3 LP |
1370 | /* Call vb2_querybuf to get information */ |
1371 | return vb2_querybuf(&layer->buffer_queue, buf); | |
a2c25b44 MH |
1372 | } |
1373 | ||
1374 | static int vpbe_display_reqbufs(struct file *file, void *priv, | |
1375 | struct v4l2_requestbuffers *req_buf) | |
1376 | { | |
1377 | struct vpbe_fh *fh = file->private_data; | |
1378 | struct vpbe_layer *layer = fh->layer; | |
1379 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
13fc23d3 | 1380 | struct vb2_queue *q; |
a2c25b44 | 1381 | int ret; |
a2c25b44 MH |
1382 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_reqbufs\n"); |
1383 | ||
1384 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != req_buf->type) { | |
1385 | v4l2_err(&vpbe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1386 | return -EINVAL; | |
1387 | } | |
1388 | ||
1389 | /* If io users of the layer is not zero, return error */ | |
1390 | if (0 != layer->io_usrs) { | |
1391 | v4l2_err(&vpbe_dev->v4l2_dev, "not IO user\n"); | |
1392 | return -EBUSY; | |
1393 | } | |
1394 | /* Initialize videobuf queue as per the buffer type */ | |
13fc23d3 LP |
1395 | layer->alloc_ctx = vb2_dma_contig_init_ctx(vpbe_dev->pdev); |
1396 | if (!layer->alloc_ctx) { | |
1397 | v4l2_err(&vpbe_dev->v4l2_dev, "Failed to get the context\n"); | |
1398 | return -EINVAL; | |
1399 | } | |
1400 | q = &layer->buffer_queue; | |
1401 | memset(q, 0, sizeof(*q)); | |
1402 | q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
1403 | q->io_modes = VB2_MMAP | VB2_USERPTR; | |
1404 | q->drv_priv = fh; | |
1405 | q->ops = &video_qops; | |
1406 | q->mem_ops = &vb2_dma_contig_memops; | |
1407 | q->buf_struct_size = sizeof(struct vpbe_disp_buffer); | |
1408 | ||
1409 | ret = vb2_queue_init(q); | |
1410 | if (ret) { | |
1411 | v4l2_err(&vpbe_dev->v4l2_dev, "vb2_queue_init() failed\n"); | |
1412 | vb2_dma_contig_cleanup_ctx(layer->alloc_ctx); | |
1413 | return ret; | |
1414 | } | |
a2c25b44 MH |
1415 | /* Set io allowed member of file handle to TRUE */ |
1416 | fh->io_allowed = 1; | |
1417 | /* Increment io usrs member of layer object to 1 */ | |
1418 | layer->io_usrs = 1; | |
1419 | /* Store type of memory requested in layer object */ | |
1420 | layer->memory = req_buf->memory; | |
1421 | /* Initialize buffer queue */ | |
1422 | INIT_LIST_HEAD(&layer->dma_queue); | |
1423 | /* Allocate buffers */ | |
13fc23d3 | 1424 | return vb2_reqbufs(q, req_buf); |
a2c25b44 MH |
1425 | } |
1426 | ||
1427 | /* | |
1428 | * vpbe_display_mmap() | |
1429 | * It is used to map kernel space buffers into user spaces | |
1430 | */ | |
1431 | static int vpbe_display_mmap(struct file *filep, struct vm_area_struct *vma) | |
1432 | { | |
1433 | /* Get the layer object and file handle object */ | |
1434 | struct vpbe_fh *fh = filep->private_data; | |
1435 | struct vpbe_layer *layer = fh->layer; | |
1436 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
cbc807dc | 1437 | int ret; |
a2c25b44 MH |
1438 | |
1439 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_mmap\n"); | |
1440 | ||
cbc807dc HV |
1441 | if (mutex_lock_interruptible(&layer->opslock)) |
1442 | return -ERESTARTSYS; | |
13fc23d3 | 1443 | ret = vb2_mmap(&layer->buffer_queue, vma); |
cbc807dc HV |
1444 | mutex_unlock(&layer->opslock); |
1445 | return ret; | |
a2c25b44 MH |
1446 | } |
1447 | ||
1448 | /* vpbe_display_poll(): It is used for select/poll system call | |
1449 | */ | |
1450 | static unsigned int vpbe_display_poll(struct file *filep, poll_table *wait) | |
1451 | { | |
1452 | struct vpbe_fh *fh = filep->private_data; | |
1453 | struct vpbe_layer *layer = fh->layer; | |
1454 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
1455 | unsigned int err = 0; | |
1456 | ||
1457 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_poll\n"); | |
cbc807dc HV |
1458 | if (layer->started) { |
1459 | mutex_lock(&layer->opslock); | |
13fc23d3 | 1460 | err = vb2_poll(&layer->buffer_queue, filep, wait); |
cbc807dc HV |
1461 | mutex_unlock(&layer->opslock); |
1462 | } | |
a2c25b44 MH |
1463 | return err; |
1464 | } | |
1465 | ||
1466 | /* | |
1467 | * vpbe_display_open() | |
1468 | * It creates object of file handle structure and stores it in private_data | |
1469 | * member of filepointer | |
1470 | */ | |
1471 | static int vpbe_display_open(struct file *file) | |
1472 | { | |
1473 | struct vpbe_fh *fh = NULL; | |
1474 | struct vpbe_layer *layer = video_drvdata(file); | |
1475 | struct vpbe_display *disp_dev = layer->disp_dev; | |
1476 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
1477 | struct osd_state *osd_device = disp_dev->osd_device; | |
1478 | int err; | |
1479 | ||
1480 | /* Allocate memory for the file handle object */ | |
1481 | fh = kmalloc(sizeof(struct vpbe_fh), GFP_KERNEL); | |
1482 | if (fh == NULL) { | |
1483 | v4l2_err(&vpbe_dev->v4l2_dev, | |
1484 | "unable to allocate memory for file handle object\n"); | |
1485 | return -ENOMEM; | |
1486 | } | |
1487 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
1488 | "vpbe display open plane = %d\n", | |
1489 | layer->device_id); | |
1490 | ||
1491 | /* store pointer to fh in private_data member of filep */ | |
1492 | file->private_data = fh; | |
1493 | fh->layer = layer; | |
1494 | fh->disp_dev = disp_dev; | |
1495 | ||
1496 | if (!layer->usrs) { | |
cbc807dc HV |
1497 | if (mutex_lock_interruptible(&layer->opslock)) |
1498 | return -ERESTARTSYS; | |
a2c25b44 MH |
1499 | /* First claim the layer for this device */ |
1500 | err = osd_device->ops.request_layer(osd_device, | |
1501 | layer->layer_info.id); | |
cbc807dc | 1502 | mutex_unlock(&layer->opslock); |
a2c25b44 MH |
1503 | if (err < 0) { |
1504 | /* Couldn't get layer */ | |
1505 | v4l2_err(&vpbe_dev->v4l2_dev, | |
1506 | "Display Manager failed to allocate layer\n"); | |
1507 | kfree(fh); | |
1508 | return -EINVAL; | |
1509 | } | |
1510 | } | |
1511 | /* Increment layer usrs counter */ | |
1512 | layer->usrs++; | |
1513 | /* Set io_allowed member to false */ | |
1514 | fh->io_allowed = 0; | |
1515 | /* Initialize priority of this instance to default priority */ | |
1516 | fh->prio = V4L2_PRIORITY_UNSET; | |
1517 | v4l2_prio_open(&layer->prio, &fh->prio); | |
1518 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, | |
1519 | "vpbe display device opened successfully\n"); | |
1520 | return 0; | |
1521 | } | |
1522 | ||
1523 | /* | |
1524 | * vpbe_display_release() | |
1525 | * This function deletes buffer queue, frees the buffers and the davinci | |
1526 | * display file * handle | |
1527 | */ | |
1528 | static int vpbe_display_release(struct file *file) | |
1529 | { | |
1530 | /* Get the layer object and file handle object */ | |
1531 | struct vpbe_fh *fh = file->private_data; | |
1532 | struct vpbe_layer *layer = fh->layer; | |
1533 | struct osd_layer_config *cfg = &layer->layer_info.config; | |
1534 | struct vpbe_display *disp_dev = fh->disp_dev; | |
1535 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
1536 | struct osd_state *osd_device = disp_dev->osd_device; | |
1537 | ||
1538 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_release\n"); | |
1539 | ||
cbc807dc | 1540 | mutex_lock(&layer->opslock); |
a2c25b44 MH |
1541 | /* if this instance is doing IO */ |
1542 | if (fh->io_allowed) { | |
1543 | /* Reset io_usrs member of layer object */ | |
1544 | layer->io_usrs = 0; | |
1545 | ||
1546 | osd_device->ops.disable_layer(osd_device, | |
1547 | layer->layer_info.id); | |
1548 | layer->started = 0; | |
1549 | /* Free buffers allocated */ | |
13fc23d3 LP |
1550 | vb2_queue_release(&layer->buffer_queue); |
1551 | vb2_dma_contig_cleanup_ctx(&layer->buffer_queue); | |
a2c25b44 MH |
1552 | } |
1553 | ||
1554 | /* Decrement layer usrs counter */ | |
1555 | layer->usrs--; | |
1556 | /* If this file handle has initialize encoder device, reset it */ | |
1557 | if (!layer->usrs) { | |
1558 | if (cfg->pixfmt == PIXFMT_NV12) { | |
1559 | struct vpbe_layer *otherlayer; | |
1560 | otherlayer = | |
1561 | _vpbe_display_get_other_win_layer(disp_dev, layer); | |
1562 | osd_device->ops.disable_layer(osd_device, | |
1563 | otherlayer->layer_info.id); | |
1564 | osd_device->ops.release_layer(osd_device, | |
1565 | otherlayer->layer_info.id); | |
1566 | } | |
1567 | osd_device->ops.disable_layer(osd_device, | |
1568 | layer->layer_info.id); | |
1569 | osd_device->ops.release_layer(osd_device, | |
1570 | layer->layer_info.id); | |
1571 | } | |
1572 | /* Close the priority */ | |
1573 | v4l2_prio_close(&layer->prio, fh->prio); | |
1574 | file->private_data = NULL; | |
cbc807dc | 1575 | mutex_unlock(&layer->opslock); |
a2c25b44 MH |
1576 | |
1577 | /* Free memory allocated to file handle object */ | |
1578 | kfree(fh); | |
1579 | ||
1580 | disp_dev->cbcr_ofst = 0; | |
1581 | ||
1582 | return 0; | |
1583 | } | |
1584 | ||
1585 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1586 | static int vpbe_display_g_register(struct file *file, void *priv, | |
1587 | struct v4l2_dbg_register *reg) | |
1588 | { | |
1589 | struct v4l2_dbg_match *match = ®->match; | |
4927c3f1 PL |
1590 | struct vpbe_fh *fh = file->private_data; |
1591 | struct vpbe_device *vpbe_dev = fh->disp_dev->vpbe_dev; | |
a2c25b44 MH |
1592 | |
1593 | if (match->type >= 2) { | |
1594 | v4l2_subdev_call(vpbe_dev->venc, | |
1595 | core, | |
1596 | g_register, | |
1597 | reg); | |
1598 | } | |
1599 | ||
1600 | return 0; | |
1601 | } | |
1602 | ||
1603 | static int vpbe_display_s_register(struct file *file, void *priv, | |
1604 | struct v4l2_dbg_register *reg) | |
1605 | { | |
1606 | return 0; | |
1607 | } | |
1608 | #endif | |
1609 | ||
1610 | /* vpbe capture ioctl operations */ | |
1611 | static const struct v4l2_ioctl_ops vpbe_ioctl_ops = { | |
1612 | .vidioc_querycap = vpbe_display_querycap, | |
1613 | .vidioc_g_fmt_vid_out = vpbe_display_g_fmt, | |
1614 | .vidioc_enum_fmt_vid_out = vpbe_display_enum_fmt, | |
1615 | .vidioc_s_fmt_vid_out = vpbe_display_s_fmt, | |
1616 | .vidioc_try_fmt_vid_out = vpbe_display_try_fmt, | |
1617 | .vidioc_reqbufs = vpbe_display_reqbufs, | |
1618 | .vidioc_querybuf = vpbe_display_querybuf, | |
1619 | .vidioc_qbuf = vpbe_display_qbuf, | |
1620 | .vidioc_dqbuf = vpbe_display_dqbuf, | |
1621 | .vidioc_streamon = vpbe_display_streamon, | |
1622 | .vidioc_streamoff = vpbe_display_streamoff, | |
1623 | .vidioc_cropcap = vpbe_display_cropcap, | |
1624 | .vidioc_g_crop = vpbe_display_g_crop, | |
1625 | .vidioc_s_crop = vpbe_display_s_crop, | |
1626 | .vidioc_g_priority = vpbe_display_g_priority, | |
1627 | .vidioc_s_priority = vpbe_display_s_priority, | |
1628 | .vidioc_s_std = vpbe_display_s_std, | |
1629 | .vidioc_g_std = vpbe_display_g_std, | |
1630 | .vidioc_enum_output = vpbe_display_enum_output, | |
1631 | .vidioc_s_output = vpbe_display_s_output, | |
1632 | .vidioc_g_output = vpbe_display_g_output, | |
36864082 HV |
1633 | .vidioc_s_dv_timings = vpbe_display_s_dv_timings, |
1634 | .vidioc_g_dv_timings = vpbe_display_g_dv_timings, | |
1635 | .vidioc_enum_dv_timings = vpbe_display_enum_dv_timings, | |
a2c25b44 MH |
1636 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
1637 | .vidioc_g_register = vpbe_display_g_register, | |
1638 | .vidioc_s_register = vpbe_display_s_register, | |
1639 | #endif | |
1640 | }; | |
1641 | ||
1642 | static struct v4l2_file_operations vpbe_fops = { | |
1643 | .owner = THIS_MODULE, | |
1644 | .open = vpbe_display_open, | |
1645 | .release = vpbe_display_release, | |
1646 | .unlocked_ioctl = video_ioctl2, | |
1647 | .mmap = vpbe_display_mmap, | |
1648 | .poll = vpbe_display_poll | |
1649 | }; | |
1650 | ||
1651 | static int vpbe_device_get(struct device *dev, void *data) | |
1652 | { | |
1653 | struct platform_device *pdev = to_platform_device(dev); | |
1654 | struct vpbe_display *vpbe_disp = data; | |
1655 | ||
1656 | if (strcmp("vpbe_controller", pdev->name) == 0) | |
1657 | vpbe_disp->vpbe_dev = platform_get_drvdata(pdev); | |
1658 | ||
caff80c3 | 1659 | if (strstr(pdev->name, "vpbe-osd") != NULL) |
a2c25b44 MH |
1660 | vpbe_disp->osd_device = platform_get_drvdata(pdev); |
1661 | ||
1662 | return 0; | |
1663 | } | |
1664 | ||
1665 | static __devinit int init_vpbe_layer(int i, struct vpbe_display *disp_dev, | |
1666 | struct platform_device *pdev) | |
1667 | { | |
1668 | struct vpbe_layer *vpbe_display_layer = NULL; | |
1669 | struct video_device *vbd = NULL; | |
1670 | ||
1671 | /* Allocate memory for four plane display objects */ | |
1672 | ||
1673 | disp_dev->dev[i] = | |
1674 | kzalloc(sizeof(struct vpbe_layer), GFP_KERNEL); | |
1675 | ||
1676 | /* If memory allocation fails, return error */ | |
1677 | if (!disp_dev->dev[i]) { | |
1678 | printk(KERN_ERR "ran out of memory\n"); | |
1679 | return -ENOMEM; | |
1680 | } | |
1681 | spin_lock_init(&disp_dev->dev[i]->irqlock); | |
1682 | mutex_init(&disp_dev->dev[i]->opslock); | |
1683 | ||
1684 | /* Get the pointer to the layer object */ | |
1685 | vpbe_display_layer = disp_dev->dev[i]; | |
1686 | vbd = &vpbe_display_layer->video_dev; | |
1687 | /* Initialize field of video device */ | |
1688 | vbd->release = video_device_release_empty; | |
1689 | vbd->fops = &vpbe_fops; | |
1690 | vbd->ioctl_ops = &vpbe_ioctl_ops; | |
1691 | vbd->minor = -1; | |
1692 | vbd->v4l2_dev = &disp_dev->vpbe_dev->v4l2_dev; | |
1693 | vbd->lock = &vpbe_display_layer->opslock; | |
954f340f | 1694 | vbd->vfl_dir = VFL_DIR_TX; |
a2c25b44 MH |
1695 | |
1696 | if (disp_dev->vpbe_dev->current_timings.timings_type & | |
1697 | VPBE_ENC_STD) { | |
1698 | vbd->tvnorms = (V4L2_STD_525_60 | V4L2_STD_625_50); | |
1699 | vbd->current_norm = | |
36864082 | 1700 | disp_dev->vpbe_dev->current_timings.std_id; |
a2c25b44 MH |
1701 | } else |
1702 | vbd->current_norm = 0; | |
1703 | ||
1704 | snprintf(vbd->name, sizeof(vbd->name), | |
1705 | "DaVinci_VPBE Display_DRIVER_V%d.%d.%d", | |
1706 | (VPBE_DISPLAY_VERSION_CODE >> 16) & 0xff, | |
1707 | (VPBE_DISPLAY_VERSION_CODE >> 8) & 0xff, | |
1708 | (VPBE_DISPLAY_VERSION_CODE) & 0xff); | |
1709 | ||
1710 | vpbe_display_layer->device_id = i; | |
1711 | ||
1712 | vpbe_display_layer->layer_info.id = | |
1713 | ((i == VPBE_DISPLAY_DEVICE_0) ? WIN_VID0 : WIN_VID1); | |
1714 | ||
1715 | /* Initialize prio member of layer object */ | |
1716 | v4l2_prio_init(&vpbe_display_layer->prio); | |
1717 | ||
1718 | return 0; | |
1719 | } | |
1720 | ||
1721 | static __devinit int register_device(struct vpbe_layer *vpbe_display_layer, | |
1722 | struct vpbe_display *disp_dev, | |
1723 | struct platform_device *pdev) { | |
1724 | int err; | |
1725 | ||
1726 | v4l2_info(&disp_dev->vpbe_dev->v4l2_dev, | |
1727 | "Trying to register VPBE display device.\n"); | |
1728 | v4l2_info(&disp_dev->vpbe_dev->v4l2_dev, | |
1729 | "layer=%x,layer->video_dev=%x\n", | |
1730 | (int)vpbe_display_layer, | |
1731 | (int)&vpbe_display_layer->video_dev); | |
1732 | ||
1733 | err = video_register_device(&vpbe_display_layer->video_dev, | |
1734 | VFL_TYPE_GRABBER, | |
1735 | -1); | |
1736 | if (err) | |
1737 | return -ENODEV; | |
1738 | ||
1739 | vpbe_display_layer->disp_dev = disp_dev; | |
1740 | /* set the driver data in platform device */ | |
1741 | platform_set_drvdata(pdev, disp_dev); | |
1742 | video_set_drvdata(&vpbe_display_layer->video_dev, | |
1743 | vpbe_display_layer); | |
1744 | ||
1745 | return 0; | |
1746 | } | |
1747 | ||
1748 | ||
1749 | ||
1750 | /* | |
1751 | * vpbe_display_probe() | |
1752 | * This function creates device entries by register itself to the V4L2 driver | |
1753 | * and initializes fields of each layer objects | |
1754 | */ | |
1755 | static __devinit int vpbe_display_probe(struct platform_device *pdev) | |
1756 | { | |
1757 | struct vpbe_layer *vpbe_display_layer; | |
1758 | struct vpbe_display *disp_dev; | |
1759 | struct resource *res = NULL; | |
1760 | int k; | |
1761 | int i; | |
1762 | int err; | |
1763 | int irq; | |
1764 | ||
1765 | printk(KERN_DEBUG "vpbe_display_probe\n"); | |
1766 | /* Allocate memory for vpbe_display */ | |
1767 | disp_dev = kzalloc(sizeof(struct vpbe_display), GFP_KERNEL); | |
1768 | if (!disp_dev) { | |
1769 | printk(KERN_ERR "ran out of memory\n"); | |
1770 | return -ENOMEM; | |
1771 | } | |
1772 | ||
1773 | spin_lock_init(&disp_dev->dma_queue_lock); | |
1774 | /* | |
1775 | * Scan all the platform devices to find the vpbe | |
1776 | * controller device and get the vpbe_dev object | |
1777 | */ | |
1778 | err = bus_for_each_dev(&platform_bus_type, NULL, disp_dev, | |
1779 | vpbe_device_get); | |
1780 | if (err < 0) | |
1781 | return err; | |
1782 | /* Initialize the vpbe display controller */ | |
1783 | if (NULL != disp_dev->vpbe_dev->ops.initialize) { | |
1784 | err = disp_dev->vpbe_dev->ops.initialize(&pdev->dev, | |
1785 | disp_dev->vpbe_dev); | |
1786 | if (err) { | |
1787 | v4l2_err(&disp_dev->vpbe_dev->v4l2_dev, | |
1788 | "Error initing vpbe\n"); | |
1789 | err = -ENOMEM; | |
1790 | goto probe_out; | |
1791 | } | |
1792 | } | |
1793 | ||
1794 | for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { | |
1795 | if (init_vpbe_layer(i, disp_dev, pdev)) { | |
1796 | err = -ENODEV; | |
1797 | goto probe_out; | |
1798 | } | |
1799 | } | |
1800 | ||
1801 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); | |
1802 | if (!res) { | |
1803 | v4l2_err(&disp_dev->vpbe_dev->v4l2_dev, | |
1804 | "Unable to get VENC interrupt resource\n"); | |
1805 | err = -ENODEV; | |
1806 | goto probe_out; | |
1807 | } | |
1808 | ||
1809 | irq = res->start; | |
1810 | if (request_irq(irq, venc_isr, IRQF_DISABLED, VPBE_DISPLAY_DRIVER, | |
1811 | disp_dev)) { | |
1812 | v4l2_err(&disp_dev->vpbe_dev->v4l2_dev, | |
1813 | "Unable to request interrupt\n"); | |
1814 | err = -ENODEV; | |
1815 | goto probe_out; | |
1816 | } | |
1817 | ||
1818 | for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { | |
1819 | if (register_device(disp_dev->dev[i], disp_dev, pdev)) { | |
1820 | err = -ENODEV; | |
49a0513c | 1821 | goto probe_out_irq; |
a2c25b44 MH |
1822 | } |
1823 | } | |
1824 | ||
1825 | printk(KERN_DEBUG "Successfully completed the probing of vpbe v4l2 device\n"); | |
1826 | return 0; | |
1827 | ||
49a0513c | 1828 | probe_out_irq: |
a2c25b44 | 1829 | free_irq(res->start, disp_dev); |
49a0513c | 1830 | probe_out: |
a2c25b44 MH |
1831 | for (k = 0; k < VPBE_DISPLAY_MAX_DEVICES; k++) { |
1832 | /* Get the pointer to the layer object */ | |
1833 | vpbe_display_layer = disp_dev->dev[k]; | |
1834 | /* Unregister video device */ | |
1835 | if (vpbe_display_layer) { | |
1836 | video_unregister_device( | |
1837 | &vpbe_display_layer->video_dev); | |
1838 | kfree(disp_dev->dev[k]); | |
1839 | } | |
1840 | } | |
1841 | kfree(disp_dev); | |
1842 | return err; | |
1843 | } | |
1844 | ||
1845 | /* | |
1846 | * vpbe_display_remove() | |
1847 | * It un-register hardware layer from V4L2 driver | |
1848 | */ | |
1849 | static int vpbe_display_remove(struct platform_device *pdev) | |
1850 | { | |
1851 | struct vpbe_layer *vpbe_display_layer; | |
1852 | struct vpbe_display *disp_dev = platform_get_drvdata(pdev); | |
1853 | struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev; | |
1854 | struct resource *res; | |
1855 | int i; | |
1856 | ||
1857 | v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_remove\n"); | |
1858 | ||
1859 | /* unregister irq */ | |
1860 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); | |
1861 | free_irq(res->start, disp_dev); | |
1862 | ||
1863 | /* deinitialize the vpbe display controller */ | |
1864 | if (NULL != vpbe_dev->ops.deinitialize) | |
1865 | vpbe_dev->ops.deinitialize(&pdev->dev, vpbe_dev); | |
1866 | /* un-register device */ | |
1867 | for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { | |
1868 | /* Get the pointer to the layer object */ | |
1869 | vpbe_display_layer = disp_dev->dev[i]; | |
1870 | /* Unregister video device */ | |
1871 | video_unregister_device(&vpbe_display_layer->video_dev); | |
1872 | ||
1873 | } | |
1874 | for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) { | |
1875 | kfree(disp_dev->dev[i]); | |
1876 | disp_dev->dev[i] = NULL; | |
1877 | } | |
1878 | ||
1879 | return 0; | |
1880 | } | |
1881 | ||
1882 | static struct platform_driver vpbe_display_driver = { | |
1883 | .driver = { | |
1884 | .name = VPBE_DISPLAY_DRIVER, | |
1885 | .owner = THIS_MODULE, | |
1886 | .bus = &platform_bus_type, | |
1887 | }, | |
1888 | .probe = vpbe_display_probe, | |
1889 | .remove = __devexit_p(vpbe_display_remove), | |
1890 | }; | |
1891 | ||
1d6629b1 | 1892 | module_platform_driver(vpbe_display_driver); |
a2c25b44 MH |
1893 | |
1894 | MODULE_DESCRIPTION("TI DM644x/DM355/DM365 VPBE Display controller"); | |
1895 | MODULE_LICENSE("GPL"); | |
1896 | MODULE_AUTHOR("Texas Instruments"); |