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5c7ab634 VH |
1 | /* |
2 | * omap_vout.c | |
3 | * | |
4 | * Copyright (C) 2005-2010 Texas Instruments. | |
5 | * | |
6 | * This file is licensed under the terms of the GNU General Public License | |
7 | * version 2. This program is licensed "as is" without any warranty of any | |
8 | * kind, whether express or implied. | |
9 | * | |
10 | * Leveraged code from the OMAP2 camera driver | |
11 | * Video-for-Linux (Version 2) camera capture driver for | |
12 | * the OMAP24xx camera controller. | |
13 | * | |
14 | * Author: Andy Lowe (source@mvista.com) | |
15 | * | |
16 | * Copyright (C) 2004 MontaVista Software, Inc. | |
17 | * Copyright (C) 2010 Texas Instruments. | |
18 | * | |
19 | * History: | |
20 | * 20-APR-2006 Khasim Modified VRFB based Rotation, | |
21 | * The image data is always read from 0 degree | |
22 | * view and written | |
23 | * to the virtual space of desired rotation angle | |
24 | * 4-DEC-2006 Jian Changed to support better memory management | |
25 | * | |
26 | * 17-Nov-2008 Hardik Changed driver to use video_ioctl2 | |
27 | * | |
28 | * 23-Feb-2010 Vaibhav H Modified to use new DSS2 interface | |
29 | * | |
30 | */ | |
31 | ||
32 | #include <linux/init.h> | |
33 | #include <linux/module.h> | |
34 | #include <linux/vmalloc.h> | |
35 | #include <linux/sched.h> | |
36 | #include <linux/types.h> | |
37 | #include <linux/platform_device.h> | |
38 | #include <linux/dma-mapping.h> | |
39 | #include <linux/irq.h> | |
40 | #include <linux/videodev2.h> | |
41 | ||
42 | #include <media/videobuf-dma-sg.h> | |
43 | #include <media/v4l2-device.h> | |
44 | #include <media/v4l2-ioctl.h> | |
45 | ||
46 | #include <plat/dma.h> | |
47 | #include <plat/vram.h> | |
48 | #include <plat/vrfb.h> | |
49 | #include <plat/display.h> | |
50 | ||
51 | #include "omap_voutlib.h" | |
52 | #include "omap_voutdef.h" | |
53 | ||
54 | MODULE_AUTHOR("Texas Instruments"); | |
55 | MODULE_DESCRIPTION("OMAP Video for Linux Video out driver"); | |
56 | MODULE_LICENSE("GPL"); | |
57 | ||
58 | ||
59 | /* Driver Configuration macros */ | |
60 | #define VOUT_NAME "omap_vout" | |
61 | ||
62 | enum omap_vout_channels { | |
63 | OMAP_VIDEO1, | |
64 | OMAP_VIDEO2, | |
65 | }; | |
66 | ||
67 | enum dma_channel_state { | |
68 | DMA_CHAN_NOT_ALLOTED, | |
69 | DMA_CHAN_ALLOTED, | |
70 | }; | |
71 | ||
72 | #define QQVGA_WIDTH 160 | |
73 | #define QQVGA_HEIGHT 120 | |
74 | ||
75 | /* Max Resolution supported by the driver */ | |
76 | #define VID_MAX_WIDTH 1280 /* Largest width */ | |
77 | #define VID_MAX_HEIGHT 720 /* Largest height */ | |
78 | ||
79 | /* Mimimum requirement is 2x2 for DSS */ | |
80 | #define VID_MIN_WIDTH 2 | |
81 | #define VID_MIN_HEIGHT 2 | |
82 | ||
83 | /* 2048 x 2048 is max res supported by OMAP display controller */ | |
84 | #define MAX_PIXELS_PER_LINE 2048 | |
85 | ||
86 | #define VRFB_TX_TIMEOUT 1000 | |
87 | #define VRFB_NUM_BUFS 4 | |
88 | ||
89 | /* Max buffer size tobe allocated during init */ | |
90 | #define OMAP_VOUT_MAX_BUF_SIZE (VID_MAX_WIDTH*VID_MAX_HEIGHT*4) | |
91 | ||
92 | static struct videobuf_queue_ops video_vbq_ops; | |
93 | /* Variables configurable through module params*/ | |
94 | static u32 video1_numbuffers = 3; | |
95 | static u32 video2_numbuffers = 3; | |
96 | static u32 video1_bufsize = OMAP_VOUT_MAX_BUF_SIZE; | |
97 | static u32 video2_bufsize = OMAP_VOUT_MAX_BUF_SIZE; | |
98 | static u32 vid1_static_vrfb_alloc; | |
99 | static u32 vid2_static_vrfb_alloc; | |
100 | static int debug; | |
101 | ||
102 | /* Module parameters */ | |
103 | module_param(video1_numbuffers, uint, S_IRUGO); | |
104 | MODULE_PARM_DESC(video1_numbuffers, | |
105 | "Number of buffers to be allocated at init time for Video1 device."); | |
106 | ||
107 | module_param(video2_numbuffers, uint, S_IRUGO); | |
108 | MODULE_PARM_DESC(video2_numbuffers, | |
109 | "Number of buffers to be allocated at init time for Video2 device."); | |
110 | ||
111 | module_param(video1_bufsize, uint, S_IRUGO); | |
112 | MODULE_PARM_DESC(video1_bufsize, | |
113 | "Size of the buffer to be allocated for video1 device"); | |
114 | ||
115 | module_param(video2_bufsize, uint, S_IRUGO); | |
116 | MODULE_PARM_DESC(video2_bufsize, | |
117 | "Size of the buffer to be allocated for video2 device"); | |
118 | ||
119 | module_param(vid1_static_vrfb_alloc, bool, S_IRUGO); | |
120 | MODULE_PARM_DESC(vid1_static_vrfb_alloc, | |
121 | "Static allocation of the VRFB buffer for video1 device"); | |
122 | ||
123 | module_param(vid2_static_vrfb_alloc, bool, S_IRUGO); | |
124 | MODULE_PARM_DESC(vid2_static_vrfb_alloc, | |
125 | "Static allocation of the VRFB buffer for video2 device"); | |
126 | ||
127 | module_param(debug, bool, S_IRUGO); | |
128 | MODULE_PARM_DESC(debug, "Debug level (0-1)"); | |
129 | ||
130 | /* list of image formats supported by OMAP2 video pipelines */ | |
131 | const static struct v4l2_fmtdesc omap_formats[] = { | |
132 | { | |
133 | /* Note: V4L2 defines RGB565 as: | |
134 | * | |
135 | * Byte 0 Byte 1 | |
136 | * g2 g1 g0 r4 r3 r2 r1 r0 b4 b3 b2 b1 b0 g5 g4 g3 | |
137 | * | |
138 | * We interpret RGB565 as: | |
139 | * | |
140 | * Byte 0 Byte 1 | |
141 | * g2 g1 g0 b4 b3 b2 b1 b0 r4 r3 r2 r1 r0 g5 g4 g3 | |
142 | */ | |
143 | .description = "RGB565, le", | |
144 | .pixelformat = V4L2_PIX_FMT_RGB565, | |
145 | }, | |
146 | { | |
147 | /* Note: V4L2 defines RGB32 as: RGB-8-8-8-8 we use | |
148 | * this for RGB24 unpack mode, the last 8 bits are ignored | |
149 | * */ | |
150 | .description = "RGB32, le", | |
151 | .pixelformat = V4L2_PIX_FMT_RGB32, | |
152 | }, | |
153 | { | |
154 | /* Note: V4L2 defines RGB24 as: RGB-8-8-8 we use | |
155 | * this for RGB24 packed mode | |
156 | * | |
157 | */ | |
158 | .description = "RGB24, le", | |
159 | .pixelformat = V4L2_PIX_FMT_RGB24, | |
160 | }, | |
161 | { | |
162 | .description = "YUYV (YUV 4:2:2), packed", | |
163 | .pixelformat = V4L2_PIX_FMT_YUYV, | |
164 | }, | |
165 | { | |
166 | .description = "UYVY, packed", | |
167 | .pixelformat = V4L2_PIX_FMT_UYVY, | |
168 | }, | |
169 | }; | |
170 | ||
171 | #define NUM_OUTPUT_FORMATS (ARRAY_SIZE(omap_formats)) | |
172 | ||
173 | /* | |
174 | * Allocate buffers | |
175 | */ | |
176 | static unsigned long omap_vout_alloc_buffer(u32 buf_size, u32 *phys_addr) | |
177 | { | |
178 | u32 order, size; | |
179 | unsigned long virt_addr, addr; | |
180 | ||
181 | size = PAGE_ALIGN(buf_size); | |
182 | order = get_order(size); | |
183 | virt_addr = __get_free_pages(GFP_KERNEL | GFP_DMA, order); | |
184 | addr = virt_addr; | |
185 | ||
186 | if (virt_addr) { | |
187 | while (size > 0) { | |
188 | SetPageReserved(virt_to_page(addr)); | |
189 | addr += PAGE_SIZE; | |
190 | size -= PAGE_SIZE; | |
191 | } | |
192 | } | |
193 | *phys_addr = (u32) virt_to_phys((void *) virt_addr); | |
194 | return virt_addr; | |
195 | } | |
196 | ||
197 | /* | |
198 | * Free buffers | |
199 | */ | |
200 | static void omap_vout_free_buffer(unsigned long virtaddr, u32 buf_size) | |
201 | { | |
202 | u32 order, size; | |
203 | unsigned long addr = virtaddr; | |
204 | ||
205 | size = PAGE_ALIGN(buf_size); | |
206 | order = get_order(size); | |
207 | ||
208 | while (size > 0) { | |
209 | ClearPageReserved(virt_to_page(addr)); | |
210 | addr += PAGE_SIZE; | |
211 | size -= PAGE_SIZE; | |
212 | } | |
213 | free_pages((unsigned long) virtaddr, order); | |
214 | } | |
215 | ||
216 | /* | |
217 | * Function for allocating video buffers | |
218 | */ | |
219 | static int omap_vout_allocate_vrfb_buffers(struct omap_vout_device *vout, | |
220 | unsigned int *count, int startindex) | |
221 | { | |
222 | int i, j; | |
223 | ||
224 | for (i = 0; i < *count; i++) { | |
225 | if (!vout->smsshado_virt_addr[i]) { | |
226 | vout->smsshado_virt_addr[i] = | |
227 | omap_vout_alloc_buffer(vout->smsshado_size, | |
228 | &vout->smsshado_phy_addr[i]); | |
229 | } | |
230 | if (!vout->smsshado_virt_addr[i] && startindex != -1) { | |
231 | if (V4L2_MEMORY_MMAP == vout->memory && i >= startindex) | |
232 | break; | |
233 | } | |
234 | if (!vout->smsshado_virt_addr[i]) { | |
235 | for (j = 0; j < i; j++) { | |
236 | omap_vout_free_buffer( | |
237 | vout->smsshado_virt_addr[j], | |
238 | vout->smsshado_size); | |
239 | vout->smsshado_virt_addr[j] = 0; | |
240 | vout->smsshado_phy_addr[j] = 0; | |
241 | } | |
242 | *count = 0; | |
243 | return -ENOMEM; | |
244 | } | |
245 | memset((void *) vout->smsshado_virt_addr[i], 0, | |
246 | vout->smsshado_size); | |
247 | } | |
248 | return 0; | |
249 | } | |
250 | ||
251 | /* | |
252 | * Try format | |
253 | */ | |
254 | static int omap_vout_try_format(struct v4l2_pix_format *pix) | |
255 | { | |
256 | int ifmt, bpp = 0; | |
257 | ||
258 | pix->height = clamp(pix->height, (u32)VID_MIN_HEIGHT, | |
259 | (u32)VID_MAX_HEIGHT); | |
260 | pix->width = clamp(pix->width, (u32)VID_MIN_WIDTH, (u32)VID_MAX_WIDTH); | |
261 | ||
262 | for (ifmt = 0; ifmt < NUM_OUTPUT_FORMATS; ifmt++) { | |
263 | if (pix->pixelformat == omap_formats[ifmt].pixelformat) | |
264 | break; | |
265 | } | |
266 | ||
267 | if (ifmt == NUM_OUTPUT_FORMATS) | |
268 | ifmt = 0; | |
269 | ||
270 | pix->pixelformat = omap_formats[ifmt].pixelformat; | |
271 | pix->field = V4L2_FIELD_ANY; | |
272 | pix->priv = 0; | |
273 | ||
274 | switch (pix->pixelformat) { | |
275 | case V4L2_PIX_FMT_YUYV: | |
276 | case V4L2_PIX_FMT_UYVY: | |
277 | default: | |
278 | pix->colorspace = V4L2_COLORSPACE_JPEG; | |
279 | bpp = YUYV_BPP; | |
280 | break; | |
281 | case V4L2_PIX_FMT_RGB565: | |
282 | case V4L2_PIX_FMT_RGB565X: | |
283 | pix->colorspace = V4L2_COLORSPACE_SRGB; | |
284 | bpp = RGB565_BPP; | |
285 | break; | |
286 | case V4L2_PIX_FMT_RGB24: | |
287 | pix->colorspace = V4L2_COLORSPACE_SRGB; | |
288 | bpp = RGB24_BPP; | |
289 | break; | |
290 | case V4L2_PIX_FMT_RGB32: | |
291 | case V4L2_PIX_FMT_BGR32: | |
292 | pix->colorspace = V4L2_COLORSPACE_SRGB; | |
293 | bpp = RGB32_BPP; | |
294 | break; | |
295 | } | |
296 | pix->bytesperline = pix->width * bpp; | |
297 | pix->sizeimage = pix->bytesperline * pix->height; | |
298 | ||
299 | return bpp; | |
300 | } | |
301 | ||
302 | /* | |
303 | * omap_vout_uservirt_to_phys: This inline function is used to convert user | |
304 | * space virtual address to physical address. | |
305 | */ | |
306 | static u32 omap_vout_uservirt_to_phys(u32 virtp) | |
307 | { | |
308 | unsigned long physp = 0; | |
309 | struct vm_area_struct *vma; | |
310 | struct mm_struct *mm = current->mm; | |
311 | ||
312 | vma = find_vma(mm, virtp); | |
313 | /* For kernel direct-mapped memory, take the easy way */ | |
314 | if (virtp >= PAGE_OFFSET) { | |
315 | physp = virt_to_phys((void *) virtp); | |
316 | } else if (vma && (vma->vm_flags & VM_IO) && vma->vm_pgoff) { | |
317 | /* this will catch, kernel-allocated, mmaped-to-usermode | |
318 | addresses */ | |
319 | physp = (vma->vm_pgoff << PAGE_SHIFT) + (virtp - vma->vm_start); | |
320 | } else { | |
321 | /* otherwise, use get_user_pages() for general userland pages */ | |
322 | int res, nr_pages = 1; | |
323 | struct page *pages; | |
324 | down_read(¤t->mm->mmap_sem); | |
325 | ||
326 | res = get_user_pages(current, current->mm, virtp, nr_pages, 1, | |
327 | 0, &pages, NULL); | |
328 | up_read(¤t->mm->mmap_sem); | |
329 | ||
330 | if (res == nr_pages) { | |
331 | physp = __pa(page_address(&pages[0]) + | |
332 | (virtp & ~PAGE_MASK)); | |
333 | } else { | |
334 | printk(KERN_WARNING VOUT_NAME | |
335 | "get_user_pages failed\n"); | |
336 | return 0; | |
337 | } | |
338 | } | |
339 | ||
340 | return physp; | |
341 | } | |
342 | ||
343 | /* | |
344 | * Wakes up the application once the DMA transfer to VRFB space is completed. | |
345 | */ | |
346 | static void omap_vout_vrfb_dma_tx_callback(int lch, u16 ch_status, void *data) | |
347 | { | |
348 | struct vid_vrfb_dma *t = (struct vid_vrfb_dma *) data; | |
349 | ||
350 | t->tx_status = 1; | |
351 | wake_up_interruptible(&t->wait); | |
352 | } | |
353 | ||
354 | /* | |
355 | * Release the VRFB context once the module exits | |
356 | */ | |
357 | static void omap_vout_release_vrfb(struct omap_vout_device *vout) | |
358 | { | |
359 | int i; | |
360 | ||
361 | for (i = 0; i < VRFB_NUM_BUFS; i++) | |
362 | omap_vrfb_release_ctx(&vout->vrfb_context[i]); | |
363 | ||
364 | if (vout->vrfb_dma_tx.req_status == DMA_CHAN_ALLOTED) { | |
365 | vout->vrfb_dma_tx.req_status = DMA_CHAN_NOT_ALLOTED; | |
366 | omap_free_dma(vout->vrfb_dma_tx.dma_ch); | |
367 | } | |
368 | } | |
369 | ||
370 | /* | |
371 | * Return true if rotation is 90 or 270 | |
372 | */ | |
373 | static inline int rotate_90_or_270(const struct omap_vout_device *vout) | |
374 | { | |
375 | return (vout->rotation == dss_rotation_90_degree || | |
376 | vout->rotation == dss_rotation_270_degree); | |
377 | } | |
378 | ||
379 | /* | |
380 | * Return true if rotation is enabled | |
381 | */ | |
382 | static inline int rotation_enabled(const struct omap_vout_device *vout) | |
383 | { | |
384 | return vout->rotation || vout->mirror; | |
385 | } | |
386 | ||
387 | /* | |
388 | * Reverse the rotation degree if mirroring is enabled | |
389 | */ | |
390 | static inline int calc_rotation(const struct omap_vout_device *vout) | |
391 | { | |
392 | if (!vout->mirror) | |
393 | return vout->rotation; | |
394 | ||
395 | switch (vout->rotation) { | |
396 | case dss_rotation_90_degree: | |
397 | return dss_rotation_270_degree; | |
398 | case dss_rotation_270_degree: | |
399 | return dss_rotation_90_degree; | |
400 | case dss_rotation_180_degree: | |
401 | return dss_rotation_0_degree; | |
402 | default: | |
403 | return dss_rotation_180_degree; | |
404 | } | |
405 | } | |
406 | ||
407 | /* | |
408 | * Free the V4L2 buffers | |
409 | */ | |
410 | static void omap_vout_free_buffers(struct omap_vout_device *vout) | |
411 | { | |
412 | int i, numbuffers; | |
413 | ||
414 | /* Allocate memory for the buffers */ | |
415 | numbuffers = (vout->vid) ? video2_numbuffers : video1_numbuffers; | |
416 | vout->buffer_size = (vout->vid) ? video2_bufsize : video1_bufsize; | |
417 | ||
418 | for (i = 0; i < numbuffers; i++) { | |
419 | omap_vout_free_buffer(vout->buf_virt_addr[i], | |
420 | vout->buffer_size); | |
421 | vout->buf_phy_addr[i] = 0; | |
422 | vout->buf_virt_addr[i] = 0; | |
423 | } | |
424 | } | |
425 | ||
426 | /* | |
427 | * Free VRFB buffers | |
428 | */ | |
429 | static void omap_vout_free_vrfb_buffers(struct omap_vout_device *vout) | |
430 | { | |
431 | int j; | |
432 | ||
433 | for (j = 0; j < VRFB_NUM_BUFS; j++) { | |
434 | omap_vout_free_buffer(vout->smsshado_virt_addr[j], | |
435 | vout->smsshado_size); | |
436 | vout->smsshado_virt_addr[j] = 0; | |
437 | vout->smsshado_phy_addr[j] = 0; | |
438 | } | |
439 | } | |
440 | ||
441 | /* | |
442 | * Allocate the buffers for the VRFB space. Data is copied from V4L2 | |
443 | * buffers to the VRFB buffers using the DMA engine. | |
444 | */ | |
445 | static int omap_vout_vrfb_buffer_setup(struct omap_vout_device *vout, | |
446 | unsigned int *count, unsigned int startindex) | |
447 | { | |
448 | int i; | |
449 | bool yuv_mode; | |
450 | ||
451 | /* Allocate the VRFB buffers only if the buffers are not | |
452 | * allocated during init time. | |
453 | */ | |
454 | if ((rotation_enabled(vout)) && !vout->vrfb_static_allocation) | |
455 | if (omap_vout_allocate_vrfb_buffers(vout, count, startindex)) | |
456 | return -ENOMEM; | |
457 | ||
458 | if (vout->dss_mode == OMAP_DSS_COLOR_YUV2 || | |
459 | vout->dss_mode == OMAP_DSS_COLOR_UYVY) | |
460 | yuv_mode = true; | |
461 | else | |
462 | yuv_mode = false; | |
463 | ||
464 | for (i = 0; i < *count; i++) | |
465 | omap_vrfb_setup(&vout->vrfb_context[i], | |
466 | vout->smsshado_phy_addr[i], vout->pix.width, | |
467 | vout->pix.height, vout->bpp, yuv_mode); | |
468 | ||
469 | return 0; | |
470 | } | |
471 | ||
472 | /* | |
473 | * Convert V4L2 rotation to DSS rotation | |
474 | * V4L2 understand 0, 90, 180, 270. | |
475 | * Convert to 0, 1, 2 and 3 repsectively for DSS | |
476 | */ | |
477 | static int v4l2_rot_to_dss_rot(int v4l2_rotation, | |
478 | enum dss_rotation *rotation, bool mirror) | |
479 | { | |
480 | int ret = 0; | |
481 | ||
482 | switch (v4l2_rotation) { | |
483 | case 90: | |
484 | *rotation = dss_rotation_90_degree; | |
485 | break; | |
486 | case 180: | |
487 | *rotation = dss_rotation_180_degree; | |
488 | break; | |
489 | case 270: | |
490 | *rotation = dss_rotation_270_degree; | |
491 | break; | |
492 | case 0: | |
493 | *rotation = dss_rotation_0_degree; | |
494 | break; | |
495 | default: | |
496 | ret = -EINVAL; | |
497 | } | |
498 | return ret; | |
499 | } | |
500 | ||
501 | /* | |
502 | * Calculate the buffer offsets from which the streaming should | |
503 | * start. This offset calculation is mainly required because of | |
504 | * the VRFB 32 pixels alignment with rotation. | |
505 | */ | |
506 | static int omap_vout_calculate_offset(struct omap_vout_device *vout) | |
507 | { | |
508 | struct omap_overlay *ovl; | |
509 | enum dss_rotation rotation; | |
510 | struct omapvideo_info *ovid; | |
511 | bool mirroring = vout->mirror; | |
512 | struct omap_dss_device *cur_display; | |
513 | struct v4l2_rect *crop = &vout->crop; | |
514 | struct v4l2_pix_format *pix = &vout->pix; | |
515 | int *cropped_offset = &vout->cropped_offset; | |
516 | int vr_ps = 1, ps = 2, temp_ps = 2; | |
517 | int offset = 0, ctop = 0, cleft = 0, line_length = 0; | |
518 | ||
519 | ovid = &vout->vid_info; | |
520 | ovl = ovid->overlays[0]; | |
521 | /* get the display device attached to the overlay */ | |
522 | if (!ovl->manager || !ovl->manager->device) | |
523 | return -1; | |
524 | ||
525 | cur_display = ovl->manager->device; | |
526 | rotation = calc_rotation(vout); | |
527 | ||
528 | if (V4L2_PIX_FMT_YUYV == pix->pixelformat || | |
529 | V4L2_PIX_FMT_UYVY == pix->pixelformat) { | |
530 | if (rotation_enabled(vout)) { | |
531 | /* | |
532 | * ps - Actual pixel size for YUYV/UYVY for | |
533 | * VRFB/Mirroring is 4 bytes | |
534 | * vr_ps - Virtually pixel size for YUYV/UYVY is | |
535 | * 2 bytes | |
536 | */ | |
537 | ps = 4; | |
538 | vr_ps = 2; | |
539 | } else { | |
540 | ps = 2; /* otherwise the pixel size is 2 byte */ | |
541 | } | |
542 | } else if (V4L2_PIX_FMT_RGB32 == pix->pixelformat) { | |
543 | ps = 4; | |
544 | } else if (V4L2_PIX_FMT_RGB24 == pix->pixelformat) { | |
545 | ps = 3; | |
546 | } | |
547 | vout->ps = ps; | |
548 | vout->vr_ps = vr_ps; | |
549 | ||
550 | if (rotation_enabled(vout)) { | |
551 | line_length = MAX_PIXELS_PER_LINE; | |
552 | ctop = (pix->height - crop->height) - crop->top; | |
553 | cleft = (pix->width - crop->width) - crop->left; | |
554 | } else { | |
555 | line_length = pix->width; | |
556 | } | |
557 | vout->line_length = line_length; | |
558 | switch (rotation) { | |
559 | case dss_rotation_90_degree: | |
560 | offset = vout->vrfb_context[0].yoffset * | |
561 | vout->vrfb_context[0].bytespp; | |
562 | temp_ps = ps / vr_ps; | |
563 | if (mirroring == 0) { | |
564 | *cropped_offset = offset + line_length * | |
565 | temp_ps * cleft + crop->top * temp_ps; | |
566 | } else { | |
567 | *cropped_offset = offset + line_length * temp_ps * | |
568 | cleft + crop->top * temp_ps + (line_length * | |
569 | ((crop->width / (vr_ps)) - 1) * ps); | |
570 | } | |
571 | break; | |
572 | case dss_rotation_180_degree: | |
573 | offset = ((MAX_PIXELS_PER_LINE * vout->vrfb_context[0].yoffset * | |
574 | vout->vrfb_context[0].bytespp) + | |
575 | (vout->vrfb_context[0].xoffset * | |
576 | vout->vrfb_context[0].bytespp)); | |
577 | if (mirroring == 0) { | |
578 | *cropped_offset = offset + (line_length * ps * ctop) + | |
579 | (cleft / vr_ps) * ps; | |
580 | ||
581 | } else { | |
582 | *cropped_offset = offset + (line_length * ps * ctop) + | |
583 | (cleft / vr_ps) * ps + (line_length * | |
584 | (crop->height - 1) * ps); | |
585 | } | |
586 | break; | |
587 | case dss_rotation_270_degree: | |
588 | offset = MAX_PIXELS_PER_LINE * vout->vrfb_context[0].xoffset * | |
589 | vout->vrfb_context[0].bytespp; | |
590 | temp_ps = ps / vr_ps; | |
591 | if (mirroring == 0) { | |
592 | *cropped_offset = offset + line_length * | |
593 | temp_ps * crop->left + ctop * ps; | |
594 | } else { | |
595 | *cropped_offset = offset + line_length * | |
596 | temp_ps * crop->left + ctop * ps + | |
597 | (line_length * ((crop->width / vr_ps) - 1) * | |
598 | ps); | |
599 | } | |
600 | break; | |
601 | case dss_rotation_0_degree: | |
602 | if (mirroring == 0) { | |
603 | *cropped_offset = (line_length * ps) * | |
604 | crop->top + (crop->left / vr_ps) * ps; | |
605 | } else { | |
606 | *cropped_offset = (line_length * ps) * | |
607 | crop->top + (crop->left / vr_ps) * ps + | |
608 | (line_length * (crop->height - 1) * ps); | |
609 | } | |
610 | break; | |
611 | default: | |
612 | *cropped_offset = (line_length * ps * crop->top) / | |
613 | vr_ps + (crop->left * ps) / vr_ps + | |
614 | ((crop->width / vr_ps) - 1) * ps; | |
615 | break; | |
616 | } | |
617 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "%s Offset:%x\n", | |
618 | __func__, *cropped_offset); | |
619 | return 0; | |
620 | } | |
621 | ||
622 | /* | |
623 | * Convert V4L2 pixel format to DSS pixel format | |
624 | */ | |
72fcf2a8 | 625 | static int video_mode_to_dss_mode(struct omap_vout_device *vout) |
5c7ab634 VH |
626 | { |
627 | struct omap_overlay *ovl; | |
628 | struct omapvideo_info *ovid; | |
629 | struct v4l2_pix_format *pix = &vout->pix; | |
630 | enum omap_color_mode mode; | |
631 | ||
632 | ovid = &vout->vid_info; | |
633 | ovl = ovid->overlays[0]; | |
634 | ||
635 | switch (pix->pixelformat) { | |
636 | case 0: | |
637 | break; | |
638 | case V4L2_PIX_FMT_YUYV: | |
639 | mode = OMAP_DSS_COLOR_YUV2; | |
640 | break; | |
641 | case V4L2_PIX_FMT_UYVY: | |
642 | mode = OMAP_DSS_COLOR_UYVY; | |
643 | break; | |
644 | case V4L2_PIX_FMT_RGB565: | |
645 | mode = OMAP_DSS_COLOR_RGB16; | |
646 | break; | |
647 | case V4L2_PIX_FMT_RGB24: | |
648 | mode = OMAP_DSS_COLOR_RGB24P; | |
649 | break; | |
650 | case V4L2_PIX_FMT_RGB32: | |
651 | mode = (ovl->id == OMAP_DSS_VIDEO1) ? | |
652 | OMAP_DSS_COLOR_RGB24U : OMAP_DSS_COLOR_ARGB32; | |
653 | break; | |
654 | case V4L2_PIX_FMT_BGR32: | |
655 | mode = OMAP_DSS_COLOR_RGBX32; | |
656 | break; | |
657 | default: | |
658 | mode = -EINVAL; | |
659 | } | |
660 | return mode; | |
661 | } | |
662 | ||
663 | /* | |
664 | * Setup the overlay | |
665 | */ | |
666 | int omapvid_setup_overlay(struct omap_vout_device *vout, | |
667 | struct omap_overlay *ovl, int posx, int posy, int outw, | |
668 | int outh, u32 addr) | |
669 | { | |
670 | int ret = 0; | |
671 | struct omap_overlay_info info; | |
672 | int cropheight, cropwidth, pixheight, pixwidth; | |
673 | ||
674 | if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 && | |
675 | (outw != vout->pix.width || outh != vout->pix.height)) { | |
676 | ret = -EINVAL; | |
677 | goto setup_ovl_err; | |
678 | } | |
679 | ||
680 | vout->dss_mode = video_mode_to_dss_mode(vout); | |
681 | if (vout->dss_mode == -EINVAL) { | |
682 | ret = -EINVAL; | |
683 | goto setup_ovl_err; | |
684 | } | |
685 | ||
686 | /* Setup the input plane parameters according to | |
687 | * rotation value selected. | |
688 | */ | |
689 | if (rotate_90_or_270(vout)) { | |
690 | cropheight = vout->crop.width; | |
691 | cropwidth = vout->crop.height; | |
692 | pixheight = vout->pix.width; | |
693 | pixwidth = vout->pix.height; | |
694 | } else { | |
695 | cropheight = vout->crop.height; | |
696 | cropwidth = vout->crop.width; | |
697 | pixheight = vout->pix.height; | |
698 | pixwidth = vout->pix.width; | |
699 | } | |
700 | ||
701 | ovl->get_overlay_info(ovl, &info); | |
702 | info.paddr = addr; | |
703 | info.vaddr = NULL; | |
704 | info.width = cropwidth; | |
705 | info.height = cropheight; | |
706 | info.color_mode = vout->dss_mode; | |
707 | info.mirror = vout->mirror; | |
708 | info.pos_x = posx; | |
709 | info.pos_y = posy; | |
710 | info.out_width = outw; | |
711 | info.out_height = outh; | |
712 | info.global_alpha = vout->win.global_alpha; | |
713 | if (!rotation_enabled(vout)) { | |
714 | info.rotation = 0; | |
715 | info.rotation_type = OMAP_DSS_ROT_DMA; | |
716 | info.screen_width = pixwidth; | |
717 | } else { | |
718 | info.rotation = vout->rotation; | |
719 | info.rotation_type = OMAP_DSS_ROT_VRFB; | |
720 | info.screen_width = 2048; | |
721 | } | |
722 | ||
723 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, | |
724 | "%s enable=%d addr=%x width=%d\n height=%d color_mode=%d\n" | |
725 | "rotation=%d mirror=%d posx=%d posy=%d out_width = %d \n" | |
726 | "out_height=%d rotation_type=%d screen_width=%d\n", | |
727 | __func__, info.enabled, info.paddr, info.width, info.height, | |
728 | info.color_mode, info.rotation, info.mirror, info.pos_x, | |
729 | info.pos_y, info.out_width, info.out_height, info.rotation_type, | |
730 | info.screen_width); | |
731 | ||
732 | ret = ovl->set_overlay_info(ovl, &info); | |
733 | if (ret) | |
734 | goto setup_ovl_err; | |
735 | ||
736 | return 0; | |
737 | ||
738 | setup_ovl_err: | |
739 | v4l2_warn(&vout->vid_dev->v4l2_dev, "setup_overlay failed\n"); | |
740 | return ret; | |
741 | } | |
742 | ||
743 | /* | |
744 | * Initialize the overlay structure | |
745 | */ | |
746 | int omapvid_init(struct omap_vout_device *vout, u32 addr) | |
747 | { | |
748 | int ret = 0, i; | |
749 | struct v4l2_window *win; | |
750 | struct omap_overlay *ovl; | |
751 | int posx, posy, outw, outh, temp; | |
752 | struct omap_video_timings *timing; | |
753 | struct omapvideo_info *ovid = &vout->vid_info; | |
754 | ||
755 | win = &vout->win; | |
756 | for (i = 0; i < ovid->num_overlays; i++) { | |
757 | ovl = ovid->overlays[i]; | |
758 | if (!ovl->manager || !ovl->manager->device) | |
759 | return -EINVAL; | |
760 | ||
761 | timing = &ovl->manager->device->panel.timings; | |
762 | ||
763 | outw = win->w.width; | |
764 | outh = win->w.height; | |
765 | switch (vout->rotation) { | |
766 | case dss_rotation_90_degree: | |
767 | /* Invert the height and width for 90 | |
768 | * and 270 degree rotation | |
769 | */ | |
770 | temp = outw; | |
771 | outw = outh; | |
772 | outh = temp; | |
773 | posy = (timing->y_res - win->w.width) - win->w.left; | |
774 | posx = win->w.top; | |
775 | break; | |
776 | ||
777 | case dss_rotation_180_degree: | |
778 | posx = (timing->x_res - win->w.width) - win->w.left; | |
779 | posy = (timing->y_res - win->w.height) - win->w.top; | |
780 | break; | |
781 | ||
782 | case dss_rotation_270_degree: | |
783 | temp = outw; | |
784 | outw = outh; | |
785 | outh = temp; | |
786 | posy = win->w.left; | |
787 | posx = (timing->x_res - win->w.height) - win->w.top; | |
788 | break; | |
789 | ||
790 | default: | |
791 | posx = win->w.left; | |
792 | posy = win->w.top; | |
793 | break; | |
794 | } | |
795 | ||
796 | ret = omapvid_setup_overlay(vout, ovl, posx, posy, | |
797 | outw, outh, addr); | |
798 | if (ret) | |
799 | goto omapvid_init_err; | |
800 | } | |
801 | return 0; | |
802 | ||
803 | omapvid_init_err: | |
804 | v4l2_warn(&vout->vid_dev->v4l2_dev, "apply_changes failed\n"); | |
805 | return ret; | |
806 | } | |
807 | ||
808 | /* | |
809 | * Apply the changes set the go bit of DSS | |
810 | */ | |
811 | int omapvid_apply_changes(struct omap_vout_device *vout) | |
812 | { | |
813 | int i; | |
814 | struct omap_overlay *ovl; | |
815 | struct omapvideo_info *ovid = &vout->vid_info; | |
816 | ||
817 | for (i = 0; i < ovid->num_overlays; i++) { | |
818 | ovl = ovid->overlays[i]; | |
819 | if (!ovl->manager || !ovl->manager->device) | |
820 | return -EINVAL; | |
821 | ovl->manager->apply(ovl->manager); | |
822 | } | |
823 | ||
824 | return 0; | |
825 | } | |
826 | ||
827 | void omap_vout_isr(void *arg, unsigned int irqstatus) | |
828 | { | |
829 | int ret; | |
830 | u32 addr, fid; | |
831 | struct omap_overlay *ovl; | |
832 | struct timeval timevalue; | |
833 | struct omapvideo_info *ovid; | |
834 | struct omap_dss_device *cur_display; | |
835 | struct omap_vout_device *vout = (struct omap_vout_device *)arg; | |
836 | ||
837 | if (!vout->streaming) | |
838 | return; | |
839 | ||
840 | ovid = &vout->vid_info; | |
841 | ovl = ovid->overlays[0]; | |
842 | /* get the display device attached to the overlay */ | |
843 | if (!ovl->manager || !ovl->manager->device) | |
844 | return; | |
845 | ||
846 | cur_display = ovl->manager->device; | |
847 | ||
848 | spin_lock(&vout->vbq_lock); | |
849 | do_gettimeofday(&timevalue); | |
850 | if (cur_display->type == OMAP_DISPLAY_TYPE_DPI) { | |
851 | if (!(irqstatus & DISPC_IRQ_VSYNC)) | |
852 | goto vout_isr_err; | |
853 | ||
854 | if (!vout->first_int && (vout->cur_frm != vout->next_frm)) { | |
855 | vout->cur_frm->ts = timevalue; | |
856 | vout->cur_frm->state = VIDEOBUF_DONE; | |
857 | wake_up_interruptible(&vout->cur_frm->done); | |
858 | vout->cur_frm = vout->next_frm; | |
859 | } | |
860 | vout->first_int = 0; | |
861 | if (list_empty(&vout->dma_queue)) | |
862 | goto vout_isr_err; | |
863 | ||
864 | vout->next_frm = list_entry(vout->dma_queue.next, | |
865 | struct videobuf_buffer, queue); | |
866 | list_del(&vout->next_frm->queue); | |
867 | ||
868 | vout->next_frm->state = VIDEOBUF_ACTIVE; | |
869 | ||
870 | addr = (unsigned long) vout->queued_buf_addr[vout->next_frm->i] | |
871 | + vout->cropped_offset; | |
872 | ||
873 | /* First save the configuration in ovelray structure */ | |
874 | ret = omapvid_init(vout, addr); | |
875 | if (ret) | |
876 | printk(KERN_ERR VOUT_NAME | |
877 | "failed to set overlay info\n"); | |
878 | /* Enable the pipeline and set the Go bit */ | |
879 | ret = omapvid_apply_changes(vout); | |
880 | if (ret) | |
881 | printk(KERN_ERR VOUT_NAME "failed to change mode\n"); | |
882 | } else { | |
883 | ||
884 | if (vout->first_int) { | |
885 | vout->first_int = 0; | |
886 | goto vout_isr_err; | |
887 | } | |
888 | if (irqstatus & DISPC_IRQ_EVSYNC_ODD) | |
889 | fid = 1; | |
890 | else if (irqstatus & DISPC_IRQ_EVSYNC_EVEN) | |
891 | fid = 0; | |
892 | else | |
893 | goto vout_isr_err; | |
894 | ||
895 | vout->field_id ^= 1; | |
896 | if (fid != vout->field_id) { | |
897 | if (0 == fid) | |
898 | vout->field_id = fid; | |
899 | ||
900 | goto vout_isr_err; | |
901 | } | |
902 | if (0 == fid) { | |
903 | if (vout->cur_frm == vout->next_frm) | |
904 | goto vout_isr_err; | |
905 | ||
906 | vout->cur_frm->ts = timevalue; | |
907 | vout->cur_frm->state = VIDEOBUF_DONE; | |
908 | wake_up_interruptible(&vout->cur_frm->done); | |
909 | vout->cur_frm = vout->next_frm; | |
910 | } else if (1 == fid) { | |
911 | if (list_empty(&vout->dma_queue) || | |
912 | (vout->cur_frm != vout->next_frm)) | |
913 | goto vout_isr_err; | |
914 | ||
915 | vout->next_frm = list_entry(vout->dma_queue.next, | |
916 | struct videobuf_buffer, queue); | |
917 | list_del(&vout->next_frm->queue); | |
918 | ||
919 | vout->next_frm->state = VIDEOBUF_ACTIVE; | |
920 | addr = (unsigned long) | |
921 | vout->queued_buf_addr[vout->next_frm->i] + | |
922 | vout->cropped_offset; | |
923 | /* First save the configuration in ovelray structure */ | |
924 | ret = omapvid_init(vout, addr); | |
925 | if (ret) | |
926 | printk(KERN_ERR VOUT_NAME | |
927 | "failed to set overlay info\n"); | |
928 | /* Enable the pipeline and set the Go bit */ | |
929 | ret = omapvid_apply_changes(vout); | |
930 | if (ret) | |
931 | printk(KERN_ERR VOUT_NAME | |
932 | "failed to change mode\n"); | |
933 | } | |
934 | ||
935 | } | |
936 | ||
937 | vout_isr_err: | |
938 | spin_unlock(&vout->vbq_lock); | |
939 | } | |
940 | ||
941 | ||
942 | /* Video buffer call backs */ | |
943 | ||
944 | /* | |
945 | * Buffer setup function is called by videobuf layer when REQBUF ioctl is | |
946 | * called. This is used to setup buffers and return size and count of | |
947 | * buffers allocated. After the call to this buffer, videobuf layer will | |
948 | * setup buffer queue depending on the size and count of buffers | |
949 | */ | |
950 | static int omap_vout_buffer_setup(struct videobuf_queue *q, unsigned int *count, | |
951 | unsigned int *size) | |
952 | { | |
953 | int startindex = 0, i, j; | |
954 | u32 phy_addr = 0, virt_addr = 0; | |
955 | struct omap_vout_device *vout = q->priv_data; | |
956 | ||
957 | if (!vout) | |
958 | return -EINVAL; | |
959 | ||
960 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != q->type) | |
961 | return -EINVAL; | |
962 | ||
963 | startindex = (vout->vid == OMAP_VIDEO1) ? | |
964 | video1_numbuffers : video2_numbuffers; | |
965 | if (V4L2_MEMORY_MMAP == vout->memory && *count < startindex) | |
966 | *count = startindex; | |
967 | ||
968 | if ((rotation_enabled(vout)) && *count > VRFB_NUM_BUFS) | |
969 | *count = VRFB_NUM_BUFS; | |
970 | ||
971 | /* If rotation is enabled, allocate memory for VRFB space also */ | |
972 | if (rotation_enabled(vout)) | |
973 | if (omap_vout_vrfb_buffer_setup(vout, count, startindex)) | |
974 | return -ENOMEM; | |
975 | ||
976 | if (V4L2_MEMORY_MMAP != vout->memory) | |
977 | return 0; | |
978 | ||
979 | /* Now allocated the V4L2 buffers */ | |
980 | *size = PAGE_ALIGN(vout->pix.width * vout->pix.height * vout->bpp); | |
981 | startindex = (vout->vid == OMAP_VIDEO1) ? | |
982 | video1_numbuffers : video2_numbuffers; | |
983 | ||
984 | for (i = startindex; i < *count; i++) { | |
985 | vout->buffer_size = *size; | |
986 | ||
987 | virt_addr = omap_vout_alloc_buffer(vout->buffer_size, | |
988 | &phy_addr); | |
989 | if (!virt_addr) { | |
990 | if (!rotation_enabled(vout)) | |
991 | break; | |
992 | /* Free the VRFB buffers if no space for V4L2 buffers */ | |
993 | for (j = i; j < *count; j++) { | |
994 | omap_vout_free_buffer( | |
995 | vout->smsshado_virt_addr[j], | |
996 | vout->smsshado_size); | |
997 | vout->smsshado_virt_addr[j] = 0; | |
998 | vout->smsshado_phy_addr[j] = 0; | |
999 | } | |
1000 | } | |
1001 | vout->buf_virt_addr[i] = virt_addr; | |
1002 | vout->buf_phy_addr[i] = phy_addr; | |
1003 | } | |
1004 | *count = vout->buffer_allocated = i; | |
1005 | ||
1006 | return 0; | |
1007 | } | |
1008 | ||
1009 | /* | |
1010 | * Free the V4L2 buffers additionally allocated than default | |
1011 | * number of buffers and free all the VRFB buffers | |
1012 | */ | |
1013 | static void omap_vout_free_allbuffers(struct omap_vout_device *vout) | |
1014 | { | |
1015 | int num_buffers = 0, i; | |
1016 | ||
1017 | num_buffers = (vout->vid == OMAP_VIDEO1) ? | |
1018 | video1_numbuffers : video2_numbuffers; | |
1019 | ||
1020 | for (i = num_buffers; i < vout->buffer_allocated; i++) { | |
1021 | if (vout->buf_virt_addr[i]) | |
1022 | omap_vout_free_buffer(vout->buf_virt_addr[i], | |
1023 | vout->buffer_size); | |
1024 | ||
1025 | vout->buf_virt_addr[i] = 0; | |
1026 | vout->buf_phy_addr[i] = 0; | |
1027 | } | |
1028 | /* Free the VRFB buffers only if they are allocated | |
1029 | * during reqbufs. Don't free if init time allocated | |
1030 | */ | |
1031 | if (!vout->vrfb_static_allocation) { | |
1032 | for (i = 0; i < VRFB_NUM_BUFS; i++) { | |
1033 | if (vout->smsshado_virt_addr[i]) { | |
1034 | omap_vout_free_buffer( | |
1035 | vout->smsshado_virt_addr[i], | |
1036 | vout->smsshado_size); | |
1037 | vout->smsshado_virt_addr[i] = 0; | |
1038 | vout->smsshado_phy_addr[i] = 0; | |
1039 | } | |
1040 | } | |
1041 | } | |
1042 | vout->buffer_allocated = num_buffers; | |
1043 | } | |
1044 | ||
1045 | /* | |
1046 | * This function will be called when VIDIOC_QBUF ioctl is called. | |
1047 | * It prepare buffers before give out for the display. This function | |
1048 | * converts user space virtual address into physical address if userptr memory | |
1049 | * exchange mechanism is used. If rotation is enabled, it copies entire | |
1050 | * buffer into VRFB memory space before giving it to the DSS. | |
1051 | */ | |
1052 | static int omap_vout_buffer_prepare(struct videobuf_queue *q, | |
1053 | struct videobuf_buffer *vb, | |
1054 | enum v4l2_field field) | |
1055 | { | |
1056 | struct vid_vrfb_dma *tx; | |
1057 | enum dss_rotation rotation; | |
1058 | struct videobuf_dmabuf *dmabuf = NULL; | |
1059 | struct omap_vout_device *vout = q->priv_data; | |
1060 | u32 dest_frame_index = 0, src_element_index = 0; | |
1061 | u32 dest_element_index = 0, src_frame_index = 0; | |
1062 | u32 elem_count = 0, frame_count = 0, pixsize = 2; | |
1063 | ||
1064 | if (VIDEOBUF_NEEDS_INIT == vb->state) { | |
1065 | vb->width = vout->pix.width; | |
1066 | vb->height = vout->pix.height; | |
1067 | vb->size = vb->width * vb->height * vout->bpp; | |
1068 | vb->field = field; | |
1069 | } | |
1070 | vb->state = VIDEOBUF_PREPARED; | |
1071 | /* if user pointer memory mechanism is used, get the physical | |
1072 | * address of the buffer | |
1073 | */ | |
1074 | if (V4L2_MEMORY_USERPTR == vb->memory) { | |
1075 | if (0 == vb->baddr) | |
1076 | return -EINVAL; | |
1077 | /* Virtual address */ | |
1078 | /* priv points to struct videobuf_pci_sg_memory. But we went | |
1079 | * pointer to videobuf_dmabuf, which is member of | |
1080 | * videobuf_pci_sg_memory */ | |
1081 | dmabuf = videobuf_to_dma(q->bufs[vb->i]); | |
1082 | dmabuf->vmalloc = (void *) vb->baddr; | |
1083 | ||
1084 | /* Physical address */ | |
1085 | dmabuf->bus_addr = | |
1086 | (dma_addr_t) omap_vout_uservirt_to_phys(vb->baddr); | |
1087 | } | |
1088 | ||
1089 | if (!rotation_enabled(vout)) { | |
1090 | dmabuf = videobuf_to_dma(q->bufs[vb->i]); | |
1091 | vout->queued_buf_addr[vb->i] = (u8 *) dmabuf->bus_addr; | |
1092 | return 0; | |
1093 | } | |
1094 | dmabuf = videobuf_to_dma(q->bufs[vb->i]); | |
1095 | /* If rotation is enabled, copy input buffer into VRFB | |
1096 | * memory space using DMA. We are copying input buffer | |
1097 | * into VRFB memory space of desired angle and DSS will | |
1098 | * read image VRFB memory for 0 degree angle | |
1099 | */ | |
1100 | pixsize = vout->bpp * vout->vrfb_bpp; | |
1101 | /* | |
1102 | * DMA transfer in double index mode | |
1103 | */ | |
1104 | ||
1105 | /* Frame index */ | |
1106 | dest_frame_index = ((MAX_PIXELS_PER_LINE * pixsize) - | |
1107 | (vout->pix.width * vout->bpp)) + 1; | |
1108 | ||
1109 | /* Source and destination parameters */ | |
1110 | src_element_index = 0; | |
1111 | src_frame_index = 0; | |
1112 | dest_element_index = 1; | |
1113 | /* Number of elements per frame */ | |
1114 | elem_count = vout->pix.width * vout->bpp; | |
1115 | frame_count = vout->pix.height; | |
1116 | tx = &vout->vrfb_dma_tx; | |
1117 | tx->tx_status = 0; | |
1118 | omap_set_dma_transfer_params(tx->dma_ch, OMAP_DMA_DATA_TYPE_S32, | |
1119 | (elem_count / 4), frame_count, OMAP_DMA_SYNC_ELEMENT, | |
1120 | tx->dev_id, 0x0); | |
1121 | /* src_port required only for OMAP1 */ | |
1122 | omap_set_dma_src_params(tx->dma_ch, 0, OMAP_DMA_AMODE_POST_INC, | |
1123 | dmabuf->bus_addr, src_element_index, src_frame_index); | |
1124 | /*set dma source burst mode for VRFB */ | |
1125 | omap_set_dma_src_burst_mode(tx->dma_ch, OMAP_DMA_DATA_BURST_16); | |
1126 | rotation = calc_rotation(vout); | |
1127 | ||
1128 | /* dest_port required only for OMAP1 */ | |
1129 | omap_set_dma_dest_params(tx->dma_ch, 0, OMAP_DMA_AMODE_DOUBLE_IDX, | |
1130 | vout->vrfb_context[vb->i].paddr[0], dest_element_index, | |
1131 | dest_frame_index); | |
1132 | /*set dma dest burst mode for VRFB */ | |
1133 | omap_set_dma_dest_burst_mode(tx->dma_ch, OMAP_DMA_DATA_BURST_16); | |
1134 | omap_dma_set_global_params(DMA_DEFAULT_ARB_RATE, 0x20, 0); | |
1135 | ||
1136 | omap_start_dma(tx->dma_ch); | |
1137 | interruptible_sleep_on_timeout(&tx->wait, VRFB_TX_TIMEOUT); | |
1138 | ||
1139 | if (tx->tx_status == 0) { | |
1140 | omap_stop_dma(tx->dma_ch); | |
1141 | return -EINVAL; | |
1142 | } | |
1143 | /* Store buffers physical address into an array. Addresses | |
1144 | * from this array will be used to configure DSS */ | |
1145 | vout->queued_buf_addr[vb->i] = (u8 *) | |
1146 | vout->vrfb_context[vb->i].paddr[rotation]; | |
1147 | return 0; | |
1148 | } | |
1149 | ||
1150 | /* | |
1151 | * Buffer queue funtion will be called from the videobuf layer when _QBUF | |
1152 | * ioctl is called. It is used to enqueue buffer, which is ready to be | |
1153 | * displayed. | |
1154 | */ | |
1155 | static void omap_vout_buffer_queue(struct videobuf_queue *q, | |
1156 | struct videobuf_buffer *vb) | |
1157 | { | |
1158 | struct omap_vout_device *vout = q->priv_data; | |
1159 | ||
1160 | /* Driver is also maintainig a queue. So enqueue buffer in the driver | |
1161 | * queue */ | |
1162 | list_add_tail(&vb->queue, &vout->dma_queue); | |
1163 | ||
1164 | vb->state = VIDEOBUF_QUEUED; | |
1165 | } | |
1166 | ||
1167 | /* | |
1168 | * Buffer release function is called from videobuf layer to release buffer | |
1169 | * which are already allocated | |
1170 | */ | |
1171 | static void omap_vout_buffer_release(struct videobuf_queue *q, | |
1172 | struct videobuf_buffer *vb) | |
1173 | { | |
1174 | struct omap_vout_device *vout = q->priv_data; | |
1175 | ||
1176 | vb->state = VIDEOBUF_NEEDS_INIT; | |
1177 | ||
1178 | if (V4L2_MEMORY_MMAP != vout->memory) | |
1179 | return; | |
1180 | } | |
1181 | ||
1182 | /* | |
1183 | * File operations | |
1184 | */ | |
1185 | static void omap_vout_vm_open(struct vm_area_struct *vma) | |
1186 | { | |
1187 | struct omap_vout_device *vout = vma->vm_private_data; | |
1188 | ||
1189 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, | |
1190 | "vm_open [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end); | |
1191 | vout->mmap_count++; | |
1192 | } | |
1193 | ||
1194 | static void omap_vout_vm_close(struct vm_area_struct *vma) | |
1195 | { | |
1196 | struct omap_vout_device *vout = vma->vm_private_data; | |
1197 | ||
1198 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, | |
1199 | "vm_close [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end); | |
1200 | vout->mmap_count--; | |
1201 | } | |
1202 | ||
1203 | static struct vm_operations_struct omap_vout_vm_ops = { | |
1204 | .open = omap_vout_vm_open, | |
1205 | .close = omap_vout_vm_close, | |
1206 | }; | |
1207 | ||
1208 | static int omap_vout_mmap(struct file *file, struct vm_area_struct *vma) | |
1209 | { | |
1210 | int i; | |
1211 | void *pos; | |
1212 | unsigned long start = vma->vm_start; | |
1213 | unsigned long size = (vma->vm_end - vma->vm_start); | |
1214 | struct videobuf_dmabuf *dmabuf = NULL; | |
1215 | struct omap_vout_device *vout = file->private_data; | |
1216 | struct videobuf_queue *q = &vout->vbq; | |
1217 | ||
1218 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, | |
1219 | " %s pgoff=0x%lx, start=0x%lx, end=0x%lx\n", __func__, | |
1220 | vma->vm_pgoff, vma->vm_start, vma->vm_end); | |
1221 | ||
1222 | /* look for the buffer to map */ | |
1223 | for (i = 0; i < VIDEO_MAX_FRAME; i++) { | |
1224 | if (NULL == q->bufs[i]) | |
1225 | continue; | |
1226 | if (V4L2_MEMORY_MMAP != q->bufs[i]->memory) | |
1227 | continue; | |
1228 | if (q->bufs[i]->boff == (vma->vm_pgoff << PAGE_SHIFT)) | |
1229 | break; | |
1230 | } | |
1231 | ||
1232 | if (VIDEO_MAX_FRAME == i) { | |
1233 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, | |
1234 | "offset invalid [offset=0x%lx]\n", | |
1235 | (vma->vm_pgoff << PAGE_SHIFT)); | |
1236 | return -EINVAL; | |
1237 | } | |
1238 | q->bufs[i]->baddr = vma->vm_start; | |
1239 | ||
1240 | vma->vm_flags |= VM_RESERVED; | |
1241 | vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); | |
1242 | vma->vm_ops = &omap_vout_vm_ops; | |
1243 | vma->vm_private_data = (void *) vout; | |
1244 | dmabuf = videobuf_to_dma(q->bufs[i]); | |
1245 | pos = dmabuf->vmalloc; | |
1246 | vma->vm_pgoff = virt_to_phys((void *)pos) >> PAGE_SHIFT; | |
1247 | while (size > 0) { | |
1248 | unsigned long pfn; | |
1249 | pfn = virt_to_phys((void *) pos) >> PAGE_SHIFT; | |
1250 | if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED)) | |
1251 | return -EAGAIN; | |
1252 | start += PAGE_SIZE; | |
1253 | pos += PAGE_SIZE; | |
1254 | size -= PAGE_SIZE; | |
1255 | } | |
1256 | vout->mmap_count++; | |
1257 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__); | |
1258 | ||
1259 | return 0; | |
1260 | } | |
1261 | ||
1262 | static int omap_vout_release(struct file *file) | |
1263 | { | |
1264 | unsigned int ret, i; | |
1265 | struct videobuf_queue *q; | |
1266 | struct omapvideo_info *ovid; | |
1267 | struct omap_vout_device *vout = file->private_data; | |
1268 | ||
1269 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__); | |
1270 | ovid = &vout->vid_info; | |
1271 | ||
1272 | if (!vout) | |
1273 | return 0; | |
1274 | ||
1275 | q = &vout->vbq; | |
1276 | /* Disable all the overlay managers connected with this interface */ | |
1277 | for (i = 0; i < ovid->num_overlays; i++) { | |
1278 | struct omap_overlay *ovl = ovid->overlays[i]; | |
1279 | if (ovl->manager && ovl->manager->device) { | |
1280 | struct omap_overlay_info info; | |
1281 | ovl->get_overlay_info(ovl, &info); | |
1282 | info.enabled = 0; | |
1283 | ovl->set_overlay_info(ovl, &info); | |
1284 | } | |
1285 | } | |
1286 | /* Turn off the pipeline */ | |
1287 | ret = omapvid_apply_changes(vout); | |
1288 | if (ret) | |
1289 | v4l2_warn(&vout->vid_dev->v4l2_dev, | |
1290 | "Unable to apply changes\n"); | |
1291 | ||
1292 | /* Free all buffers */ | |
1293 | omap_vout_free_allbuffers(vout); | |
1294 | videobuf_mmap_free(q); | |
1295 | ||
1296 | /* Even if apply changes fails we should continue | |
1297 | freeing allocated memeory */ | |
1298 | if (vout->streaming) { | |
1299 | u32 mask = 0; | |
1300 | ||
1301 | mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | | |
1302 | DISPC_IRQ_EVSYNC_ODD; | |
1303 | omap_dispc_unregister_isr(omap_vout_isr, vout, mask); | |
1304 | vout->streaming = 0; | |
1305 | ||
1306 | videobuf_streamoff(q); | |
1307 | videobuf_queue_cancel(q); | |
1308 | } | |
1309 | ||
1310 | if (vout->mmap_count != 0) | |
1311 | vout->mmap_count = 0; | |
1312 | ||
1313 | vout->opened -= 1; | |
1314 | file->private_data = NULL; | |
1315 | ||
1316 | if (vout->buffer_allocated) | |
1317 | videobuf_mmap_free(q); | |
1318 | ||
1319 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__); | |
1320 | return ret; | |
1321 | } | |
1322 | ||
1323 | static int omap_vout_open(struct file *file) | |
1324 | { | |
1325 | struct videobuf_queue *q; | |
1326 | struct omap_vout_device *vout = NULL; | |
1327 | ||
1328 | vout = video_drvdata(file); | |
1329 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__); | |
1330 | ||
1331 | if (vout == NULL) | |
1332 | return -ENODEV; | |
1333 | ||
1334 | /* for now, we only support single open */ | |
1335 | if (vout->opened) | |
1336 | return -EBUSY; | |
1337 | ||
1338 | vout->opened += 1; | |
1339 | ||
1340 | file->private_data = vout; | |
1341 | vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
1342 | ||
1343 | q = &vout->vbq; | |
1344 | video_vbq_ops.buf_setup = omap_vout_buffer_setup; | |
1345 | video_vbq_ops.buf_prepare = omap_vout_buffer_prepare; | |
1346 | video_vbq_ops.buf_release = omap_vout_buffer_release; | |
1347 | video_vbq_ops.buf_queue = omap_vout_buffer_queue; | |
1348 | spin_lock_init(&vout->vbq_lock); | |
1349 | ||
1350 | videobuf_queue_sg_init(q, &video_vbq_ops, NULL, &vout->vbq_lock, | |
1351 | vout->type, V4L2_FIELD_NONE, | |
1352 | sizeof(struct videobuf_buffer), vout); | |
1353 | ||
1354 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__); | |
1355 | return 0; | |
1356 | } | |
1357 | ||
1358 | /* | |
1359 | * V4L2 ioctls | |
1360 | */ | |
1361 | static int vidioc_querycap(struct file *file, void *fh, | |
1362 | struct v4l2_capability *cap) | |
1363 | { | |
1364 | struct omap_vout_device *vout = fh; | |
1365 | ||
1366 | strlcpy(cap->driver, VOUT_NAME, sizeof(cap->driver)); | |
1367 | strlcpy(cap->card, vout->vfd->name, sizeof(cap->card)); | |
1368 | cap->bus_info[0] = '\0'; | |
1369 | cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT; | |
1370 | ||
1371 | return 0; | |
1372 | } | |
1373 | ||
1374 | static int vidioc_enum_fmt_vid_out(struct file *file, void *fh, | |
1375 | struct v4l2_fmtdesc *fmt) | |
1376 | { | |
1377 | int index = fmt->index; | |
1378 | enum v4l2_buf_type type = fmt->type; | |
1379 | ||
1380 | fmt->index = index; | |
1381 | fmt->type = type; | |
1382 | if (index >= NUM_OUTPUT_FORMATS) | |
1383 | return -EINVAL; | |
1384 | ||
1385 | fmt->flags = omap_formats[index].flags; | |
1386 | strlcpy(fmt->description, omap_formats[index].description, | |
1387 | sizeof(fmt->description)); | |
1388 | fmt->pixelformat = omap_formats[index].pixelformat; | |
1389 | ||
1390 | return 0; | |
1391 | } | |
1392 | ||
1393 | static int vidioc_g_fmt_vid_out(struct file *file, void *fh, | |
1394 | struct v4l2_format *f) | |
1395 | { | |
1396 | struct omap_vout_device *vout = fh; | |
1397 | ||
1398 | f->fmt.pix = vout->pix; | |
1399 | return 0; | |
1400 | ||
1401 | } | |
1402 | ||
1403 | static int vidioc_try_fmt_vid_out(struct file *file, void *fh, | |
1404 | struct v4l2_format *f) | |
1405 | { | |
1406 | struct omap_overlay *ovl; | |
1407 | struct omapvideo_info *ovid; | |
1408 | struct omap_video_timings *timing; | |
1409 | struct omap_vout_device *vout = fh; | |
1410 | ||
1411 | ovid = &vout->vid_info; | |
1412 | ovl = ovid->overlays[0]; | |
1413 | ||
1414 | if (!ovl->manager || !ovl->manager->device) | |
1415 | return -EINVAL; | |
1416 | /* get the display device attached to the overlay */ | |
1417 | timing = &ovl->manager->device->panel.timings; | |
1418 | ||
1419 | vout->fbuf.fmt.height = timing->y_res; | |
1420 | vout->fbuf.fmt.width = timing->x_res; | |
1421 | ||
1422 | omap_vout_try_format(&f->fmt.pix); | |
1423 | return 0; | |
1424 | } | |
1425 | ||
1426 | static int vidioc_s_fmt_vid_out(struct file *file, void *fh, | |
1427 | struct v4l2_format *f) | |
1428 | { | |
1429 | int ret, bpp; | |
1430 | struct omap_overlay *ovl; | |
1431 | struct omapvideo_info *ovid; | |
1432 | struct omap_video_timings *timing; | |
1433 | struct omap_vout_device *vout = fh; | |
1434 | ||
1435 | if (vout->streaming) | |
1436 | return -EBUSY; | |
1437 | ||
1438 | mutex_lock(&vout->lock); | |
1439 | ||
1440 | ovid = &vout->vid_info; | |
1441 | ovl = ovid->overlays[0]; | |
1442 | ||
1443 | /* get the display device attached to the overlay */ | |
1444 | if (!ovl->manager || !ovl->manager->device) { | |
1445 | ret = -EINVAL; | |
1446 | goto s_fmt_vid_out_exit; | |
1447 | } | |
1448 | timing = &ovl->manager->device->panel.timings; | |
1449 | ||
1450 | /* We dont support RGB24-packed mode if vrfb rotation | |
1451 | * is enabled*/ | |
1452 | if ((rotation_enabled(vout)) && | |
1453 | f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) { | |
1454 | ret = -EINVAL; | |
1455 | goto s_fmt_vid_out_exit; | |
1456 | } | |
1457 | ||
1458 | /* get the framebuffer parameters */ | |
1459 | ||
1460 | if (rotate_90_or_270(vout)) { | |
1461 | vout->fbuf.fmt.height = timing->x_res; | |
1462 | vout->fbuf.fmt.width = timing->y_res; | |
1463 | } else { | |
1464 | vout->fbuf.fmt.height = timing->y_res; | |
1465 | vout->fbuf.fmt.width = timing->x_res; | |
1466 | } | |
1467 | ||
1468 | /* change to samller size is OK */ | |
1469 | ||
1470 | bpp = omap_vout_try_format(&f->fmt.pix); | |
1471 | f->fmt.pix.sizeimage = f->fmt.pix.width * f->fmt.pix.height * bpp; | |
1472 | ||
1473 | /* try & set the new output format */ | |
1474 | vout->bpp = bpp; | |
1475 | vout->pix = f->fmt.pix; | |
1476 | vout->vrfb_bpp = 1; | |
1477 | ||
1478 | /* If YUYV then vrfb bpp is 2, for others its 1 */ | |
1479 | if (V4L2_PIX_FMT_YUYV == vout->pix.pixelformat || | |
1480 | V4L2_PIX_FMT_UYVY == vout->pix.pixelformat) | |
1481 | vout->vrfb_bpp = 2; | |
1482 | ||
1483 | /* set default crop and win */ | |
1484 | omap_vout_new_format(&vout->pix, &vout->fbuf, &vout->crop, &vout->win); | |
1485 | ||
1486 | /* Save the changes in the overlay strcuture */ | |
1487 | ret = omapvid_init(vout, 0); | |
1488 | if (ret) { | |
1489 | v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n"); | |
1490 | goto s_fmt_vid_out_exit; | |
1491 | } | |
1492 | ||
1493 | ret = 0; | |
1494 | ||
1495 | s_fmt_vid_out_exit: | |
1496 | mutex_unlock(&vout->lock); | |
1497 | return ret; | |
1498 | } | |
1499 | ||
1500 | static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, | |
1501 | struct v4l2_format *f) | |
1502 | { | |
1503 | int ret = 0; | |
1504 | struct omap_vout_device *vout = fh; | |
1505 | struct v4l2_window *win = &f->fmt.win; | |
1506 | ||
1507 | ret = omap_vout_try_window(&vout->fbuf, win); | |
1508 | ||
1509 | if (!ret) { | |
1510 | if (vout->vid == OMAP_VIDEO1) | |
1511 | win->global_alpha = 255; | |
1512 | else | |
1513 | win->global_alpha = f->fmt.win.global_alpha; | |
1514 | } | |
1515 | ||
1516 | return ret; | |
1517 | } | |
1518 | ||
1519 | static int vidioc_s_fmt_vid_overlay(struct file *file, void *fh, | |
1520 | struct v4l2_format *f) | |
1521 | { | |
1522 | int ret = 0; | |
1523 | struct omap_overlay *ovl; | |
1524 | struct omapvideo_info *ovid; | |
1525 | struct omap_vout_device *vout = fh; | |
1526 | struct v4l2_window *win = &f->fmt.win; | |
1527 | ||
1528 | mutex_lock(&vout->lock); | |
1529 | ovid = &vout->vid_info; | |
1530 | ovl = ovid->overlays[0]; | |
1531 | ||
1532 | ret = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win); | |
1533 | if (!ret) { | |
1534 | /* Video1 plane does not support global alpha */ | |
1535 | if (ovl->id == OMAP_DSS_VIDEO1) | |
1536 | vout->win.global_alpha = 255; | |
1537 | else | |
1538 | vout->win.global_alpha = f->fmt.win.global_alpha; | |
1539 | ||
1540 | vout->win.chromakey = f->fmt.win.chromakey; | |
1541 | } | |
1542 | mutex_unlock(&vout->lock); | |
1543 | return ret; | |
1544 | } | |
1545 | ||
1546 | static int vidioc_enum_fmt_vid_overlay(struct file *file, void *fh, | |
1547 | struct v4l2_fmtdesc *fmt) | |
1548 | { | |
1549 | int index = fmt->index; | |
1550 | enum v4l2_buf_type type = fmt->type; | |
1551 | ||
1552 | fmt->index = index; | |
1553 | fmt->type = type; | |
1554 | if (index >= NUM_OUTPUT_FORMATS) | |
1555 | return -EINVAL; | |
1556 | ||
1557 | fmt->flags = omap_formats[index].flags; | |
1558 | strlcpy(fmt->description, omap_formats[index].description, | |
1559 | sizeof(fmt->description)); | |
1560 | fmt->pixelformat = omap_formats[index].pixelformat; | |
1561 | return 0; | |
1562 | } | |
1563 | ||
1564 | static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh, | |
1565 | struct v4l2_format *f) | |
1566 | { | |
1567 | u32 key_value = 0; | |
1568 | struct omap_overlay *ovl; | |
1569 | struct omapvideo_info *ovid; | |
1570 | struct omap_vout_device *vout = fh; | |
1571 | struct omap_overlay_manager_info info; | |
1572 | struct v4l2_window *win = &f->fmt.win; | |
1573 | ||
1574 | ovid = &vout->vid_info; | |
1575 | ovl = ovid->overlays[0]; | |
1576 | ||
1577 | win->w = vout->win.w; | |
1578 | win->field = vout->win.field; | |
1579 | win->global_alpha = vout->win.global_alpha; | |
1580 | ||
1581 | if (ovl->manager && ovl->manager->get_manager_info) { | |
1582 | ovl->manager->get_manager_info(ovl->manager, &info); | |
1583 | key_value = info.trans_key; | |
1584 | } | |
1585 | win->chromakey = key_value; | |
1586 | return 0; | |
1587 | } | |
1588 | ||
1589 | static int vidioc_cropcap(struct file *file, void *fh, | |
1590 | struct v4l2_cropcap *cropcap) | |
1591 | { | |
1592 | struct omap_vout_device *vout = fh; | |
1593 | struct v4l2_pix_format *pix = &vout->pix; | |
1594 | ||
1595 | if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
1596 | return -EINVAL; | |
1597 | ||
1598 | /* Width and height are always even */ | |
1599 | cropcap->bounds.width = pix->width & ~1; | |
1600 | cropcap->bounds.height = pix->height & ~1; | |
1601 | ||
1602 | omap_vout_default_crop(&vout->pix, &vout->fbuf, &cropcap->defrect); | |
1603 | cropcap->pixelaspect.numerator = 1; | |
1604 | cropcap->pixelaspect.denominator = 1; | |
1605 | return 0; | |
1606 | } | |
1607 | ||
1608 | static int vidioc_g_crop(struct file *file, void *fh, struct v4l2_crop *crop) | |
1609 | { | |
1610 | struct omap_vout_device *vout = fh; | |
1611 | ||
1612 | if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
1613 | return -EINVAL; | |
1614 | crop->c = vout->crop; | |
1615 | return 0; | |
1616 | } | |
1617 | ||
1618 | static int vidioc_s_crop(struct file *file, void *fh, struct v4l2_crop *crop) | |
1619 | { | |
1620 | int ret = -EINVAL; | |
1621 | struct omap_vout_device *vout = fh; | |
1622 | struct omapvideo_info *ovid; | |
1623 | struct omap_overlay *ovl; | |
1624 | struct omap_video_timings *timing; | |
1625 | ||
1626 | if (vout->streaming) | |
1627 | return -EBUSY; | |
1628 | ||
1629 | mutex_lock(&vout->lock); | |
1630 | ovid = &vout->vid_info; | |
1631 | ovl = ovid->overlays[0]; | |
1632 | ||
1633 | if (!ovl->manager || !ovl->manager->device) { | |
1634 | ret = -EINVAL; | |
1635 | goto s_crop_err; | |
1636 | } | |
1637 | /* get the display device attached to the overlay */ | |
1638 | timing = &ovl->manager->device->panel.timings; | |
1639 | ||
1640 | if (rotate_90_or_270(vout)) { | |
1641 | vout->fbuf.fmt.height = timing->x_res; | |
1642 | vout->fbuf.fmt.width = timing->y_res; | |
1643 | } else { | |
1644 | vout->fbuf.fmt.height = timing->y_res; | |
1645 | vout->fbuf.fmt.width = timing->x_res; | |
1646 | } | |
1647 | ||
1648 | if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
1649 | ret = omap_vout_new_crop(&vout->pix, &vout->crop, &vout->win, | |
1650 | &vout->fbuf, &crop->c); | |
1651 | ||
1652 | s_crop_err: | |
1653 | mutex_unlock(&vout->lock); | |
1654 | return ret; | |
1655 | } | |
1656 | ||
1657 | static int vidioc_queryctrl(struct file *file, void *fh, | |
1658 | struct v4l2_queryctrl *ctrl) | |
1659 | { | |
1660 | int ret = 0; | |
1661 | ||
1662 | switch (ctrl->id) { | |
1663 | case V4L2_CID_ROTATE: | |
1664 | ret = v4l2_ctrl_query_fill(ctrl, 0, 270, 90, 0); | |
1665 | break; | |
1666 | case V4L2_CID_BG_COLOR: | |
1667 | ret = v4l2_ctrl_query_fill(ctrl, 0, 0xFFFFFF, 1, 0); | |
1668 | break; | |
1669 | case V4L2_CID_VFLIP: | |
1670 | ret = v4l2_ctrl_query_fill(ctrl, 0, 1, 1, 0); | |
1671 | break; | |
1672 | default: | |
1673 | ctrl->name[0] = '\0'; | |
1674 | ret = -EINVAL; | |
1675 | } | |
1676 | return ret; | |
1677 | } | |
1678 | ||
1679 | static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *ctrl) | |
1680 | { | |
1681 | int ret = 0; | |
1682 | struct omap_vout_device *vout = fh; | |
1683 | ||
1684 | switch (ctrl->id) { | |
1685 | case V4L2_CID_ROTATE: | |
1686 | ctrl->value = vout->control[0].value; | |
1687 | break; | |
1688 | case V4L2_CID_BG_COLOR: | |
1689 | { | |
1690 | struct omap_overlay_manager_info info; | |
1691 | struct omap_overlay *ovl; | |
1692 | ||
1693 | ovl = vout->vid_info.overlays[0]; | |
1694 | if (!ovl->manager || !ovl->manager->get_manager_info) { | |
1695 | ret = -EINVAL; | |
1696 | break; | |
1697 | } | |
1698 | ||
1699 | ovl->manager->get_manager_info(ovl->manager, &info); | |
1700 | ctrl->value = info.default_color; | |
1701 | break; | |
1702 | } | |
1703 | case V4L2_CID_VFLIP: | |
1704 | ctrl->value = vout->control[2].value; | |
1705 | break; | |
1706 | default: | |
1707 | ret = -EINVAL; | |
1708 | } | |
1709 | return ret; | |
1710 | } | |
1711 | ||
1712 | static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a) | |
1713 | { | |
1714 | int ret = 0; | |
1715 | struct omap_vout_device *vout = fh; | |
1716 | ||
1717 | switch (a->id) { | |
1718 | case V4L2_CID_ROTATE: | |
1719 | { | |
1720 | int rotation = a->value; | |
1721 | ||
1722 | mutex_lock(&vout->lock); | |
1723 | ||
1724 | if (rotation && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) { | |
1725 | mutex_unlock(&vout->lock); | |
1726 | ret = -EINVAL; | |
1727 | break; | |
1728 | } | |
1729 | ||
1730 | if (v4l2_rot_to_dss_rot(rotation, &vout->rotation, | |
1731 | vout->mirror)) { | |
1732 | mutex_unlock(&vout->lock); | |
1733 | ret = -EINVAL; | |
1734 | break; | |
1735 | } | |
1736 | ||
1737 | vout->control[0].value = rotation; | |
1738 | mutex_unlock(&vout->lock); | |
1739 | break; | |
1740 | } | |
1741 | case V4L2_CID_BG_COLOR: | |
1742 | { | |
1743 | struct omap_overlay *ovl; | |
1744 | unsigned int color = a->value; | |
1745 | struct omap_overlay_manager_info info; | |
1746 | ||
1747 | ovl = vout->vid_info.overlays[0]; | |
1748 | ||
1749 | mutex_lock(&vout->lock); | |
1750 | if (!ovl->manager || !ovl->manager->get_manager_info) { | |
1751 | mutex_unlock(&vout->lock); | |
1752 | ret = -EINVAL; | |
1753 | break; | |
1754 | } | |
1755 | ||
1756 | ovl->manager->get_manager_info(ovl->manager, &info); | |
1757 | info.default_color = color; | |
1758 | if (ovl->manager->set_manager_info(ovl->manager, &info)) { | |
1759 | mutex_unlock(&vout->lock); | |
1760 | ret = -EINVAL; | |
1761 | break; | |
1762 | } | |
1763 | ||
1764 | vout->control[1].value = color; | |
1765 | mutex_unlock(&vout->lock); | |
1766 | break; | |
1767 | } | |
1768 | case V4L2_CID_VFLIP: | |
1769 | { | |
1770 | struct omap_overlay *ovl; | |
1771 | struct omapvideo_info *ovid; | |
1772 | unsigned int mirror = a->value; | |
1773 | ||
1774 | ovid = &vout->vid_info; | |
1775 | ovl = ovid->overlays[0]; | |
1776 | ||
1777 | mutex_lock(&vout->lock); | |
1778 | ||
1779 | if (mirror && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) { | |
1780 | mutex_unlock(&vout->lock); | |
1781 | ret = -EINVAL; | |
1782 | break; | |
1783 | } | |
1784 | vout->mirror = mirror; | |
1785 | vout->control[2].value = mirror; | |
1786 | mutex_unlock(&vout->lock); | |
1787 | break; | |
1788 | } | |
1789 | default: | |
1790 | ret = -EINVAL; | |
1791 | } | |
1792 | return ret; | |
1793 | } | |
1794 | ||
1795 | static int vidioc_reqbufs(struct file *file, void *fh, | |
1796 | struct v4l2_requestbuffers *req) | |
1797 | { | |
1798 | int ret = 0; | |
1799 | unsigned int i, num_buffers = 0; | |
1800 | struct omap_vout_device *vout = fh; | |
1801 | struct videobuf_queue *q = &vout->vbq; | |
1802 | struct videobuf_dmabuf *dmabuf = NULL; | |
1803 | ||
1804 | if ((req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || (req->count < 0)) | |
1805 | return -EINVAL; | |
1806 | /* if memory is not mmp or userptr | |
1807 | return error */ | |
1808 | if ((V4L2_MEMORY_MMAP != req->memory) && | |
1809 | (V4L2_MEMORY_USERPTR != req->memory)) | |
1810 | return -EINVAL; | |
1811 | ||
1812 | mutex_lock(&vout->lock); | |
1813 | /* Cannot be requested when streaming is on */ | |
1814 | if (vout->streaming) { | |
1815 | ret = -EBUSY; | |
1816 | goto reqbuf_err; | |
1817 | } | |
1818 | ||
1819 | /* If buffers are already allocated free them */ | |
1820 | if (q->bufs[0] && (V4L2_MEMORY_MMAP == q->bufs[0]->memory)) { | |
1821 | if (vout->mmap_count) { | |
1822 | ret = -EBUSY; | |
1823 | goto reqbuf_err; | |
1824 | } | |
1825 | num_buffers = (vout->vid == OMAP_VIDEO1) ? | |
1826 | video1_numbuffers : video2_numbuffers; | |
1827 | for (i = num_buffers; i < vout->buffer_allocated; i++) { | |
1828 | dmabuf = videobuf_to_dma(q->bufs[i]); | |
1829 | omap_vout_free_buffer((u32)dmabuf->vmalloc, | |
1830 | vout->buffer_size); | |
1831 | vout->buf_virt_addr[i] = 0; | |
1832 | vout->buf_phy_addr[i] = 0; | |
1833 | } | |
1834 | vout->buffer_allocated = num_buffers; | |
1835 | videobuf_mmap_free(q); | |
1836 | } else if (q->bufs[0] && (V4L2_MEMORY_USERPTR == q->bufs[0]->memory)) { | |
1837 | if (vout->buffer_allocated) { | |
1838 | videobuf_mmap_free(q); | |
1839 | for (i = 0; i < vout->buffer_allocated; i++) { | |
1840 | kfree(q->bufs[i]); | |
1841 | q->bufs[i] = NULL; | |
1842 | } | |
1843 | vout->buffer_allocated = 0; | |
1844 | } | |
1845 | } | |
1846 | ||
1847 | /*store the memory type in data structure */ | |
1848 | vout->memory = req->memory; | |
1849 | ||
1850 | INIT_LIST_HEAD(&vout->dma_queue); | |
1851 | ||
1852 | /* call videobuf_reqbufs api */ | |
1853 | ret = videobuf_reqbufs(q, req); | |
1854 | if (ret < 0) | |
1855 | goto reqbuf_err; | |
1856 | ||
1857 | vout->buffer_allocated = req->count; | |
1858 | for (i = 0; i < req->count; i++) { | |
1859 | dmabuf = videobuf_to_dma(q->bufs[i]); | |
1860 | dmabuf->vmalloc = (void *) vout->buf_virt_addr[i]; | |
1861 | dmabuf->bus_addr = (dma_addr_t) vout->buf_phy_addr[i]; | |
1862 | dmabuf->sglen = 1; | |
1863 | } | |
1864 | reqbuf_err: | |
1865 | mutex_unlock(&vout->lock); | |
1866 | return ret; | |
1867 | } | |
1868 | ||
1869 | static int vidioc_querybuf(struct file *file, void *fh, | |
1870 | struct v4l2_buffer *b) | |
1871 | { | |
1872 | struct omap_vout_device *vout = fh; | |
1873 | ||
1874 | return videobuf_querybuf(&vout->vbq, b); | |
1875 | } | |
1876 | ||
1877 | static int vidioc_qbuf(struct file *file, void *fh, | |
1878 | struct v4l2_buffer *buffer) | |
1879 | { | |
1880 | struct omap_vout_device *vout = fh; | |
1881 | struct videobuf_queue *q = &vout->vbq; | |
1882 | ||
1883 | if ((V4L2_BUF_TYPE_VIDEO_OUTPUT != buffer->type) || | |
1884 | (buffer->index >= vout->buffer_allocated) || | |
1885 | (q->bufs[buffer->index]->memory != buffer->memory)) { | |
1886 | return -EINVAL; | |
1887 | } | |
1888 | if (V4L2_MEMORY_USERPTR == buffer->memory) { | |
1889 | if ((buffer->length < vout->pix.sizeimage) || | |
1890 | (0 == buffer->m.userptr)) { | |
1891 | return -EINVAL; | |
1892 | } | |
1893 | } | |
1894 | ||
1895 | if ((rotation_enabled(vout)) && | |
1896 | vout->vrfb_dma_tx.req_status == DMA_CHAN_NOT_ALLOTED) { | |
1897 | v4l2_warn(&vout->vid_dev->v4l2_dev, | |
1898 | "DMA Channel not allocated for Rotation\n"); | |
1899 | return -EINVAL; | |
1900 | } | |
1901 | ||
1902 | return videobuf_qbuf(q, buffer); | |
1903 | } | |
1904 | ||
1905 | static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b) | |
1906 | { | |
1907 | struct omap_vout_device *vout = fh; | |
1908 | struct videobuf_queue *q = &vout->vbq; | |
1909 | ||
1910 | if (!vout->streaming) | |
1911 | return -EINVAL; | |
1912 | ||
1913 | if (file->f_flags & O_NONBLOCK) | |
1914 | /* Call videobuf_dqbuf for non blocking mode */ | |
1915 | return videobuf_dqbuf(q, (struct v4l2_buffer *)b, 1); | |
1916 | else | |
1917 | /* Call videobuf_dqbuf for blocking mode */ | |
1918 | return videobuf_dqbuf(q, (struct v4l2_buffer *)b, 0); | |
1919 | } | |
1920 | ||
1921 | static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i) | |
1922 | { | |
1923 | int ret = 0, j; | |
1924 | u32 addr = 0, mask = 0; | |
1925 | struct omap_vout_device *vout = fh; | |
1926 | struct videobuf_queue *q = &vout->vbq; | |
1927 | struct omapvideo_info *ovid = &vout->vid_info; | |
1928 | ||
1929 | mutex_lock(&vout->lock); | |
1930 | ||
1931 | if (vout->streaming) { | |
1932 | ret = -EBUSY; | |
1933 | goto streamon_err; | |
1934 | } | |
1935 | ||
1936 | ret = videobuf_streamon(q); | |
1937 | if (ret) | |
1938 | goto streamon_err; | |
1939 | ||
1940 | if (list_empty(&vout->dma_queue)) { | |
1941 | ret = -EIO; | |
1942 | goto streamon_err1; | |
1943 | } | |
1944 | ||
1945 | /* Get the next frame from the buffer queue */ | |
1946 | vout->next_frm = vout->cur_frm = list_entry(vout->dma_queue.next, | |
1947 | struct videobuf_buffer, queue); | |
1948 | /* Remove buffer from the buffer queue */ | |
1949 | list_del(&vout->cur_frm->queue); | |
1950 | /* Mark state of the current frame to active */ | |
1951 | vout->cur_frm->state = VIDEOBUF_ACTIVE; | |
1952 | /* Initialize field_id and started member */ | |
1953 | vout->field_id = 0; | |
1954 | ||
1955 | /* set flag here. Next QBUF will start DMA */ | |
1956 | vout->streaming = 1; | |
1957 | ||
1958 | vout->first_int = 1; | |
1959 | ||
1960 | if (omap_vout_calculate_offset(vout)) { | |
1961 | ret = -EINVAL; | |
1962 | goto streamon_err1; | |
1963 | } | |
1964 | addr = (unsigned long) vout->queued_buf_addr[vout->cur_frm->i] | |
1965 | + vout->cropped_offset; | |
1966 | ||
1967 | mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD; | |
1968 | ||
1969 | omap_dispc_register_isr(omap_vout_isr, vout, mask); | |
1970 | ||
1971 | for (j = 0; j < ovid->num_overlays; j++) { | |
1972 | struct omap_overlay *ovl = ovid->overlays[j]; | |
1973 | ||
1974 | if (ovl->manager && ovl->manager->device) { | |
1975 | struct omap_overlay_info info; | |
1976 | ovl->get_overlay_info(ovl, &info); | |
1977 | info.enabled = 1; | |
1978 | info.paddr = addr; | |
1979 | if (ovl->set_overlay_info(ovl, &info)) { | |
1980 | ret = -EINVAL; | |
1981 | goto streamon_err1; | |
1982 | } | |
1983 | } | |
1984 | } | |
1985 | ||
1986 | /* First save the configuration in ovelray structure */ | |
1987 | ret = omapvid_init(vout, addr); | |
1988 | if (ret) | |
1989 | v4l2_err(&vout->vid_dev->v4l2_dev, | |
1990 | "failed to set overlay info\n"); | |
1991 | /* Enable the pipeline and set the Go bit */ | |
1992 | ret = omapvid_apply_changes(vout); | |
1993 | if (ret) | |
1994 | v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n"); | |
1995 | ||
1996 | ret = 0; | |
1997 | ||
1998 | streamon_err1: | |
1999 | if (ret) | |
2000 | ret = videobuf_streamoff(q); | |
2001 | streamon_err: | |
2002 | mutex_unlock(&vout->lock); | |
2003 | return ret; | |
2004 | } | |
2005 | ||
2006 | static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i) | |
2007 | { | |
2008 | u32 mask = 0; | |
2009 | int ret = 0, j; | |
2010 | struct omap_vout_device *vout = fh; | |
2011 | struct omapvideo_info *ovid = &vout->vid_info; | |
2012 | ||
2013 | if (!vout->streaming) | |
2014 | return -EINVAL; | |
2015 | ||
2016 | vout->streaming = 0; | |
2017 | mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD; | |
2018 | ||
2019 | omap_dispc_unregister_isr(omap_vout_isr, vout, mask); | |
2020 | ||
2021 | for (j = 0; j < ovid->num_overlays; j++) { | |
2022 | struct omap_overlay *ovl = ovid->overlays[j]; | |
2023 | ||
2024 | if (ovl->manager && ovl->manager->device) { | |
2025 | struct omap_overlay_info info; | |
2026 | ||
2027 | ovl->get_overlay_info(ovl, &info); | |
2028 | info.enabled = 0; | |
2029 | ret = ovl->set_overlay_info(ovl, &info); | |
2030 | if (ret) | |
2031 | v4l2_err(&vout->vid_dev->v4l2_dev, | |
2032 | "failed to update overlay info in streamoff\n"); | |
2033 | } | |
2034 | } | |
2035 | ||
2036 | /* Turn of the pipeline */ | |
2037 | ret = omapvid_apply_changes(vout); | |
2038 | if (ret) | |
2039 | v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode in" | |
2040 | " streamoff\n"); | |
2041 | ||
2042 | INIT_LIST_HEAD(&vout->dma_queue); | |
2043 | ret = videobuf_streamoff(&vout->vbq); | |
2044 | ||
2045 | return ret; | |
2046 | } | |
2047 | ||
2048 | static int vidioc_s_fbuf(struct file *file, void *fh, | |
2049 | struct v4l2_framebuffer *a) | |
2050 | { | |
2051 | int enable = 0; | |
2052 | struct omap_overlay *ovl; | |
2053 | struct omapvideo_info *ovid; | |
2054 | struct omap_vout_device *vout = fh; | |
2055 | struct omap_overlay_manager_info info; | |
2056 | enum omap_dss_trans_key_type key_type = OMAP_DSS_COLOR_KEY_GFX_DST; | |
2057 | ||
2058 | ovid = &vout->vid_info; | |
2059 | ovl = ovid->overlays[0]; | |
2060 | ||
2061 | /* OMAP DSS doesn't support Source and Destination color | |
2062 | key together */ | |
2063 | if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY) && | |
2064 | (a->flags & V4L2_FBUF_FLAG_CHROMAKEY)) | |
2065 | return -EINVAL; | |
2066 | /* OMAP DSS Doesn't support the Destination color key | |
2067 | and alpha blending together */ | |
2068 | if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY) && | |
2069 | (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA)) | |
2070 | return -EINVAL; | |
2071 | ||
2072 | if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY)) { | |
2073 | vout->fbuf.flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY; | |
2074 | key_type = OMAP_DSS_COLOR_KEY_VID_SRC; | |
2075 | } else | |
2076 | vout->fbuf.flags &= ~V4L2_FBUF_FLAG_SRC_CHROMAKEY; | |
2077 | ||
2078 | if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY)) { | |
2079 | vout->fbuf.flags |= V4L2_FBUF_FLAG_CHROMAKEY; | |
2080 | key_type = OMAP_DSS_COLOR_KEY_GFX_DST; | |
2081 | } else | |
2082 | vout->fbuf.flags &= ~V4L2_FBUF_FLAG_CHROMAKEY; | |
2083 | ||
2084 | if (a->flags & (V4L2_FBUF_FLAG_CHROMAKEY | | |
2085 | V4L2_FBUF_FLAG_SRC_CHROMAKEY)) | |
2086 | enable = 1; | |
2087 | else | |
2088 | enable = 0; | |
2089 | if (ovl->manager && ovl->manager->get_manager_info && | |
2090 | ovl->manager->set_manager_info) { | |
2091 | ||
2092 | ovl->manager->get_manager_info(ovl->manager, &info); | |
2093 | info.trans_enabled = enable; | |
2094 | info.trans_key_type = key_type; | |
2095 | info.trans_key = vout->win.chromakey; | |
2096 | ||
2097 | if (ovl->manager->set_manager_info(ovl->manager, &info)) | |
2098 | return -EINVAL; | |
2099 | } | |
2100 | if (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA) { | |
2101 | vout->fbuf.flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA; | |
2102 | enable = 1; | |
2103 | } else { | |
2104 | vout->fbuf.flags &= ~V4L2_FBUF_FLAG_LOCAL_ALPHA; | |
2105 | enable = 0; | |
2106 | } | |
2107 | if (ovl->manager && ovl->manager->get_manager_info && | |
2108 | ovl->manager->set_manager_info) { | |
2109 | ovl->manager->get_manager_info(ovl->manager, &info); | |
2110 | info.alpha_enabled = enable; | |
2111 | if (ovl->manager->set_manager_info(ovl->manager, &info)) | |
2112 | return -EINVAL; | |
2113 | } | |
2114 | ||
2115 | return 0; | |
2116 | } | |
2117 | ||
2118 | static int vidioc_g_fbuf(struct file *file, void *fh, | |
2119 | struct v4l2_framebuffer *a) | |
2120 | { | |
2121 | struct omap_overlay *ovl; | |
2122 | struct omapvideo_info *ovid; | |
2123 | struct omap_vout_device *vout = fh; | |
2124 | struct omap_overlay_manager_info info; | |
2125 | ||
2126 | ovid = &vout->vid_info; | |
2127 | ovl = ovid->overlays[0]; | |
2128 | ||
2129 | a->flags = 0x0; | |
2130 | a->capability = V4L2_FBUF_CAP_LOCAL_ALPHA | V4L2_FBUF_CAP_CHROMAKEY | |
2131 | | V4L2_FBUF_CAP_SRC_CHROMAKEY; | |
2132 | ||
2133 | if (ovl->manager && ovl->manager->get_manager_info) { | |
2134 | ovl->manager->get_manager_info(ovl->manager, &info); | |
2135 | if (info.trans_key_type == OMAP_DSS_COLOR_KEY_VID_SRC) | |
2136 | a->flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY; | |
2137 | if (info.trans_key_type == OMAP_DSS_COLOR_KEY_GFX_DST) | |
2138 | a->flags |= V4L2_FBUF_FLAG_CHROMAKEY; | |
2139 | } | |
2140 | if (ovl->manager && ovl->manager->get_manager_info) { | |
2141 | ovl->manager->get_manager_info(ovl->manager, &info); | |
2142 | if (info.alpha_enabled) | |
2143 | a->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA; | |
2144 | } | |
2145 | ||
2146 | return 0; | |
2147 | } | |
2148 | ||
2149 | static const struct v4l2_ioctl_ops vout_ioctl_ops = { | |
2150 | .vidioc_querycap = vidioc_querycap, | |
2151 | .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out, | |
2152 | .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out, | |
2153 | .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out, | |
2154 | .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out, | |
2155 | .vidioc_queryctrl = vidioc_queryctrl, | |
2156 | .vidioc_g_ctrl = vidioc_g_ctrl, | |
2157 | .vidioc_s_fbuf = vidioc_s_fbuf, | |
2158 | .vidioc_g_fbuf = vidioc_g_fbuf, | |
2159 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
2160 | .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_vid_overlay, | |
2161 | .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_vid_overlay, | |
2162 | .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_overlay, | |
2163 | .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_vid_overlay, | |
2164 | .vidioc_cropcap = vidioc_cropcap, | |
2165 | .vidioc_g_crop = vidioc_g_crop, | |
2166 | .vidioc_s_crop = vidioc_s_crop, | |
2167 | .vidioc_reqbufs = vidioc_reqbufs, | |
2168 | .vidioc_querybuf = vidioc_querybuf, | |
2169 | .vidioc_qbuf = vidioc_qbuf, | |
2170 | .vidioc_dqbuf = vidioc_dqbuf, | |
2171 | .vidioc_streamon = vidioc_streamon, | |
2172 | .vidioc_streamoff = vidioc_streamoff, | |
2173 | }; | |
2174 | ||
2175 | static const struct v4l2_file_operations omap_vout_fops = { | |
2176 | .owner = THIS_MODULE, | |
2177 | .unlocked_ioctl = video_ioctl2, | |
2178 | .mmap = omap_vout_mmap, | |
2179 | .open = omap_vout_open, | |
2180 | .release = omap_vout_release, | |
2181 | }; | |
2182 | ||
2183 | /* Init functions used during driver initialization */ | |
2184 | /* Initial setup of video_data */ | |
2185 | static int __init omap_vout_setup_video_data(struct omap_vout_device *vout) | |
2186 | { | |
2187 | struct video_device *vfd; | |
2188 | struct v4l2_pix_format *pix; | |
2189 | struct v4l2_control *control; | |
2190 | struct omap_dss_device *display = | |
2191 | vout->vid_info.overlays[0]->manager->device; | |
2192 | ||
2193 | /* set the default pix */ | |
2194 | pix = &vout->pix; | |
2195 | ||
2196 | /* Set the default picture of QVGA */ | |
2197 | pix->width = QQVGA_WIDTH; | |
2198 | pix->height = QQVGA_HEIGHT; | |
2199 | ||
2200 | /* Default pixel format is RGB 5-6-5 */ | |
2201 | pix->pixelformat = V4L2_PIX_FMT_RGB565; | |
2202 | pix->field = V4L2_FIELD_ANY; | |
2203 | pix->bytesperline = pix->width * 2; | |
2204 | pix->sizeimage = pix->bytesperline * pix->height; | |
2205 | pix->priv = 0; | |
2206 | pix->colorspace = V4L2_COLORSPACE_JPEG; | |
2207 | ||
2208 | vout->bpp = RGB565_BPP; | |
2209 | vout->fbuf.fmt.width = display->panel.timings.x_res; | |
2210 | vout->fbuf.fmt.height = display->panel.timings.y_res; | |
2211 | ||
2212 | /* Set the data structures for the overlay parameters*/ | |
2213 | vout->win.global_alpha = 255; | |
2214 | vout->fbuf.flags = 0; | |
2215 | vout->fbuf.capability = V4L2_FBUF_CAP_LOCAL_ALPHA | | |
2216 | V4L2_FBUF_CAP_SRC_CHROMAKEY | V4L2_FBUF_CAP_CHROMAKEY; | |
2217 | vout->win.chromakey = 0; | |
2218 | ||
2219 | omap_vout_new_format(pix, &vout->fbuf, &vout->crop, &vout->win); | |
2220 | ||
2221 | /*Initialize the control variables for | |
2222 | rotation, flipping and background color. */ | |
2223 | control = vout->control; | |
2224 | control[0].id = V4L2_CID_ROTATE; | |
2225 | control[0].value = 0; | |
2226 | vout->rotation = 0; | |
2227 | vout->mirror = 0; | |
2228 | vout->control[2].id = V4L2_CID_HFLIP; | |
2229 | vout->control[2].value = 0; | |
2230 | vout->vrfb_bpp = 2; | |
2231 | ||
2232 | control[1].id = V4L2_CID_BG_COLOR; | |
2233 | control[1].value = 0; | |
2234 | ||
2235 | /* initialize the video_device struct */ | |
2236 | vfd = vout->vfd = video_device_alloc(); | |
2237 | ||
2238 | if (!vfd) { | |
2239 | printk(KERN_ERR VOUT_NAME ": could not allocate" | |
2240 | " video device struct\n"); | |
2241 | return -ENOMEM; | |
2242 | } | |
2243 | vfd->release = video_device_release; | |
2244 | vfd->ioctl_ops = &vout_ioctl_ops; | |
2245 | ||
2246 | strlcpy(vfd->name, VOUT_NAME, sizeof(vfd->name)); | |
2247 | ||
2248 | /* need to register for a VID_HARDWARE_* ID in videodev.h */ | |
2249 | vfd->fops = &omap_vout_fops; | |
2250 | vfd->v4l2_dev = &vout->vid_dev->v4l2_dev; | |
2251 | mutex_init(&vout->lock); | |
2252 | ||
2253 | vfd->minor = -1; | |
2254 | return 0; | |
2255 | ||
2256 | } | |
2257 | ||
2258 | /* Setup video buffers */ | |
2259 | static int __init omap_vout_setup_video_bufs(struct platform_device *pdev, | |
2260 | int vid_num) | |
2261 | { | |
2262 | u32 numbuffers; | |
2263 | int ret = 0, i, j; | |
2264 | int image_width, image_height; | |
2265 | struct video_device *vfd; | |
2266 | struct omap_vout_device *vout; | |
2267 | int static_vrfb_allocation = 0, vrfb_num_bufs = VRFB_NUM_BUFS; | |
2268 | struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); | |
2269 | struct omap2video_device *vid_dev = | |
2270 | container_of(v4l2_dev, struct omap2video_device, v4l2_dev); | |
2271 | ||
2272 | vout = vid_dev->vouts[vid_num]; | |
2273 | vfd = vout->vfd; | |
2274 | ||
2275 | numbuffers = (vid_num == 0) ? video1_numbuffers : video2_numbuffers; | |
2276 | vout->buffer_size = (vid_num == 0) ? video1_bufsize : video2_bufsize; | |
2277 | dev_info(&pdev->dev, "Buffer Size = %d\n", vout->buffer_size); | |
2278 | ||
2279 | for (i = 0; i < numbuffers; i++) { | |
2280 | vout->buf_virt_addr[i] = | |
2281 | omap_vout_alloc_buffer(vout->buffer_size, | |
2282 | (u32 *) &vout->buf_phy_addr[i]); | |
2283 | if (!vout->buf_virt_addr[i]) { | |
2284 | numbuffers = i; | |
2285 | ret = -ENOMEM; | |
2286 | goto free_buffers; | |
2287 | } | |
2288 | } | |
2289 | ||
2290 | for (i = 0; i < VRFB_NUM_BUFS; i++) { | |
2291 | if (omap_vrfb_request_ctx(&vout->vrfb_context[i])) { | |
2292 | dev_info(&pdev->dev, ": VRFB allocation failed\n"); | |
2293 | for (j = 0; j < i; j++) | |
2294 | omap_vrfb_release_ctx(&vout->vrfb_context[j]); | |
2295 | ret = -ENOMEM; | |
2296 | goto free_buffers; | |
2297 | } | |
2298 | } | |
2299 | vout->cropped_offset = 0; | |
2300 | ||
2301 | /* Calculate VRFB memory size */ | |
2302 | /* allocate for worst case size */ | |
2303 | image_width = VID_MAX_WIDTH / TILE_SIZE; | |
2304 | if (VID_MAX_WIDTH % TILE_SIZE) | |
2305 | image_width++; | |
2306 | ||
2307 | image_width = image_width * TILE_SIZE; | |
2308 | image_height = VID_MAX_HEIGHT / TILE_SIZE; | |
2309 | ||
2310 | if (VID_MAX_HEIGHT % TILE_SIZE) | |
2311 | image_height++; | |
2312 | ||
2313 | image_height = image_height * TILE_SIZE; | |
2314 | vout->smsshado_size = PAGE_ALIGN(image_width * image_height * 2 * 2); | |
2315 | ||
2316 | /* | |
2317 | * Request and Initialize DMA, for DMA based VRFB transfer | |
2318 | */ | |
2319 | vout->vrfb_dma_tx.dev_id = OMAP_DMA_NO_DEVICE; | |
2320 | vout->vrfb_dma_tx.dma_ch = -1; | |
2321 | vout->vrfb_dma_tx.req_status = DMA_CHAN_ALLOTED; | |
2322 | ret = omap_request_dma(vout->vrfb_dma_tx.dev_id, "VRFB DMA TX", | |
2323 | omap_vout_vrfb_dma_tx_callback, | |
2324 | (void *) &vout->vrfb_dma_tx, &vout->vrfb_dma_tx.dma_ch); | |
2325 | if (ret < 0) { | |
2326 | vout->vrfb_dma_tx.req_status = DMA_CHAN_NOT_ALLOTED; | |
2327 | dev_info(&pdev->dev, ": failed to allocate DMA Channel for" | |
2328 | " video%d\n", vfd->minor); | |
2329 | } | |
2330 | init_waitqueue_head(&vout->vrfb_dma_tx.wait); | |
2331 | ||
2332 | /* Allocate VRFB buffers if selected through bootargs */ | |
2333 | static_vrfb_allocation = (vid_num == 0) ? | |
2334 | vid1_static_vrfb_alloc : vid2_static_vrfb_alloc; | |
2335 | ||
2336 | /* statically allocated the VRFB buffer is done through | |
2337 | commands line aruments */ | |
2338 | if (static_vrfb_allocation) { | |
2339 | if (omap_vout_allocate_vrfb_buffers(vout, &vrfb_num_bufs, -1)) { | |
2340 | ret = -ENOMEM; | |
2341 | goto release_vrfb_ctx; | |
2342 | } | |
2343 | vout->vrfb_static_allocation = 1; | |
2344 | } | |
2345 | return 0; | |
2346 | ||
2347 | release_vrfb_ctx: | |
2348 | for (j = 0; j < VRFB_NUM_BUFS; j++) | |
2349 | omap_vrfb_release_ctx(&vout->vrfb_context[j]); | |
2350 | ||
2351 | free_buffers: | |
2352 | for (i = 0; i < numbuffers; i++) { | |
2353 | omap_vout_free_buffer(vout->buf_virt_addr[i], | |
2354 | vout->buffer_size); | |
2355 | vout->buf_virt_addr[i] = 0; | |
2356 | vout->buf_phy_addr[i] = 0; | |
2357 | } | |
2358 | return ret; | |
2359 | ||
2360 | } | |
2361 | ||
2362 | /* Create video out devices */ | |
2363 | static int __init omap_vout_create_video_devices(struct platform_device *pdev) | |
2364 | { | |
2365 | int ret = 0, k; | |
2366 | struct omap_vout_device *vout; | |
2367 | struct video_device *vfd = NULL; | |
2368 | struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); | |
2369 | struct omap2video_device *vid_dev = container_of(v4l2_dev, | |
2370 | struct omap2video_device, v4l2_dev); | |
2371 | ||
2372 | for (k = 0; k < pdev->num_resources; k++) { | |
2373 | ||
2ef17c9f | 2374 | vout = kzalloc(sizeof(struct omap_vout_device), GFP_KERNEL); |
5c7ab634 VH |
2375 | if (!vout) { |
2376 | dev_err(&pdev->dev, ": could not allocate memory\n"); | |
2377 | return -ENOMEM; | |
2378 | } | |
5c7ab634 VH |
2379 | |
2380 | vout->vid = k; | |
2381 | vid_dev->vouts[k] = vout; | |
2382 | vout->vid_dev = vid_dev; | |
2383 | /* Select video2 if only 1 overlay is controlled by V4L2 */ | |
2384 | if (pdev->num_resources == 1) | |
2385 | vout->vid_info.overlays[0] = vid_dev->overlays[k + 2]; | |
2386 | else | |
2387 | /* Else select video1 and video2 one by one. */ | |
2388 | vout->vid_info.overlays[0] = vid_dev->overlays[k + 1]; | |
2389 | vout->vid_info.num_overlays = 1; | |
2390 | vout->vid_info.id = k + 1; | |
2391 | ||
2392 | /* Setup the default configuration for the video devices | |
2393 | */ | |
2394 | if (omap_vout_setup_video_data(vout) != 0) { | |
2395 | ret = -ENOMEM; | |
2396 | goto error; | |
2397 | } | |
2398 | ||
2399 | /* Allocate default number of buffers for the video streaming | |
2400 | * and reserve the VRFB space for rotation | |
2401 | */ | |
2402 | if (omap_vout_setup_video_bufs(pdev, k) != 0) { | |
2403 | ret = -ENOMEM; | |
2404 | goto error1; | |
2405 | } | |
2406 | ||
2407 | /* Register the Video device with V4L2 | |
2408 | */ | |
2409 | vfd = vout->vfd; | |
2410 | if (video_register_device(vfd, VFL_TYPE_GRABBER, k + 1) < 0) { | |
2411 | dev_err(&pdev->dev, ": Could not register " | |
2412 | "Video for Linux device\n"); | |
2413 | vfd->minor = -1; | |
2414 | ret = -ENODEV; | |
2415 | goto error2; | |
2416 | } | |
2417 | video_set_drvdata(vfd, vout); | |
2418 | ||
2419 | /* Configure the overlay structure */ | |
2420 | ret = omapvid_init(vid_dev->vouts[k], 0); | |
2421 | if (!ret) | |
2422 | goto success; | |
2423 | ||
2424 | error2: | |
2425 | omap_vout_release_vrfb(vout); | |
2426 | omap_vout_free_buffers(vout); | |
2427 | error1: | |
2428 | video_device_release(vfd); | |
2429 | error: | |
2430 | kfree(vout); | |
2431 | return ret; | |
2432 | ||
2433 | success: | |
2434 | dev_info(&pdev->dev, ": registered and initialized" | |
2435 | " video device %d\n", vfd->minor); | |
2436 | if (k == (pdev->num_resources - 1)) | |
2437 | return 0; | |
2438 | } | |
2439 | ||
2440 | return -ENODEV; | |
2441 | } | |
2442 | /* Driver functions */ | |
2443 | static void omap_vout_cleanup_device(struct omap_vout_device *vout) | |
2444 | { | |
2445 | struct video_device *vfd; | |
2446 | ||
2447 | if (!vout) | |
2448 | return; | |
2449 | ||
2450 | vfd = vout->vfd; | |
2451 | if (vfd) { | |
2452 | if (!video_is_registered(vfd)) { | |
2453 | /* | |
2454 | * The device was never registered, so release the | |
2455 | * video_device struct directly. | |
2456 | */ | |
2457 | video_device_release(vfd); | |
2458 | } else { | |
2459 | /* | |
2460 | * The unregister function will release the video_device | |
2461 | * struct as well as unregistering it. | |
2462 | */ | |
2463 | video_unregister_device(vfd); | |
2464 | } | |
2465 | } | |
2466 | ||
2467 | omap_vout_release_vrfb(vout); | |
2468 | omap_vout_free_buffers(vout); | |
2469 | /* Free the VRFB buffer if allocated | |
2470 | * init time | |
2471 | */ | |
2472 | if (vout->vrfb_static_allocation) | |
2473 | omap_vout_free_vrfb_buffers(vout); | |
2474 | ||
2475 | kfree(vout); | |
2476 | } | |
2477 | ||
2478 | static int omap_vout_remove(struct platform_device *pdev) | |
2479 | { | |
2480 | int k; | |
2481 | struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); | |
2482 | struct omap2video_device *vid_dev = container_of(v4l2_dev, struct | |
2483 | omap2video_device, v4l2_dev); | |
2484 | ||
2485 | v4l2_device_unregister(v4l2_dev); | |
2486 | for (k = 0; k < pdev->num_resources; k++) | |
2487 | omap_vout_cleanup_device(vid_dev->vouts[k]); | |
2488 | ||
2489 | for (k = 0; k < vid_dev->num_displays; k++) { | |
2490 | if (vid_dev->displays[k]->state != OMAP_DSS_DISPLAY_DISABLED) | |
2491 | vid_dev->displays[k]->disable(vid_dev->displays[k]); | |
2492 | ||
2493 | omap_dss_put_device(vid_dev->displays[k]); | |
2494 | } | |
2495 | kfree(vid_dev); | |
2496 | return 0; | |
2497 | } | |
2498 | ||
2499 | static int __init omap_vout_probe(struct platform_device *pdev) | |
2500 | { | |
2501 | int ret = 0, i; | |
2502 | struct omap_overlay *ovl; | |
2503 | struct omap_dss_device *dssdev = NULL; | |
2504 | struct omap_dss_device *def_display; | |
2505 | struct omap2video_device *vid_dev = NULL; | |
2506 | ||
2507 | if (pdev->num_resources == 0) { | |
2508 | dev_err(&pdev->dev, "probed for an unknown device\n"); | |
2509 | return -ENODEV; | |
2510 | } | |
2511 | ||
2512 | vid_dev = kzalloc(sizeof(struct omap2video_device), GFP_KERNEL); | |
2513 | if (vid_dev == NULL) | |
2514 | return -ENOMEM; | |
2515 | ||
2516 | vid_dev->num_displays = 0; | |
2517 | for_each_dss_dev(dssdev) { | |
2518 | omap_dss_get_device(dssdev); | |
2519 | vid_dev->displays[vid_dev->num_displays++] = dssdev; | |
2520 | } | |
2521 | ||
2522 | if (vid_dev->num_displays == 0) { | |
2523 | dev_err(&pdev->dev, "no displays\n"); | |
2524 | ret = -EINVAL; | |
2525 | goto probe_err0; | |
2526 | } | |
2527 | ||
2528 | vid_dev->num_overlays = omap_dss_get_num_overlays(); | |
2529 | for (i = 0; i < vid_dev->num_overlays; i++) | |
2530 | vid_dev->overlays[i] = omap_dss_get_overlay(i); | |
2531 | ||
2532 | vid_dev->num_managers = omap_dss_get_num_overlay_managers(); | |
2533 | for (i = 0; i < vid_dev->num_managers; i++) | |
2534 | vid_dev->managers[i] = omap_dss_get_overlay_manager(i); | |
2535 | ||
2536 | /* Get the Video1 overlay and video2 overlay. | |
2537 | * Setup the Display attached to that overlays | |
2538 | */ | |
2539 | for (i = 1; i < vid_dev->num_overlays; i++) { | |
2540 | ovl = omap_dss_get_overlay(i); | |
2541 | if (ovl->manager && ovl->manager->device) { | |
2542 | def_display = ovl->manager->device; | |
2543 | } else { | |
2544 | dev_warn(&pdev->dev, "cannot find display\n"); | |
2545 | def_display = NULL; | |
2546 | } | |
2547 | if (def_display) { | |
2548 | ret = def_display->enable(def_display); | |
2549 | if (ret) { | |
2550 | /* Here we are not considering a error | |
2551 | * as display may be enabled by frame | |
2552 | * buffer driver | |
2553 | */ | |
2554 | dev_warn(&pdev->dev, | |
2555 | "'%s' Display already enabled\n", | |
2556 | def_display->name); | |
2557 | } | |
2558 | /* set the update mode */ | |
2559 | if (def_display->caps & | |
2560 | OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) { | |
2561 | #ifdef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE | |
2562 | if (def_display->enable_te) | |
2563 | def_display->enable_te(def_display, 1); | |
2564 | if (def_display->set_update_mode) | |
2565 | def_display->set_update_mode(def_display, | |
2566 | OMAP_DSS_UPDATE_AUTO); | |
2567 | #else /* MANUAL_UPDATE */ | |
2568 | if (def_display->enable_te) | |
2569 | def_display->enable_te(def_display, 0); | |
2570 | if (def_display->set_update_mode) | |
2571 | def_display->set_update_mode(def_display, | |
2572 | OMAP_DSS_UPDATE_MANUAL); | |
2573 | #endif | |
2574 | } else { | |
2575 | if (def_display->set_update_mode) | |
2576 | def_display->set_update_mode(def_display, | |
2577 | OMAP_DSS_UPDATE_AUTO); | |
2578 | } | |
2579 | } | |
2580 | } | |
2581 | ||
2582 | if (v4l2_device_register(&pdev->dev, &vid_dev->v4l2_dev) < 0) { | |
2583 | dev_err(&pdev->dev, "v4l2_device_register failed\n"); | |
2584 | ret = -ENODEV; | |
2585 | goto probe_err1; | |
2586 | } | |
2587 | ||
2588 | ret = omap_vout_create_video_devices(pdev); | |
2589 | if (ret) | |
2590 | goto probe_err2; | |
2591 | ||
2592 | for (i = 0; i < vid_dev->num_displays; i++) { | |
2593 | struct omap_dss_device *display = vid_dev->displays[i]; | |
2594 | ||
2595 | if (display->update) | |
2596 | display->update(display, 0, 0, | |
2597 | display->panel.timings.x_res, | |
2598 | display->panel.timings.y_res); | |
2599 | } | |
2600 | return 0; | |
2601 | ||
2602 | probe_err2: | |
2603 | v4l2_device_unregister(&vid_dev->v4l2_dev); | |
2604 | probe_err1: | |
2605 | for (i = 1; i < vid_dev->num_overlays; i++) { | |
2606 | def_display = NULL; | |
2607 | ovl = omap_dss_get_overlay(i); | |
2608 | if (ovl->manager && ovl->manager->device) | |
2609 | def_display = ovl->manager->device; | |
2610 | ||
2611 | if (def_display) | |
2612 | def_display->disable(def_display); | |
2613 | } | |
2614 | probe_err0: | |
2615 | kfree(vid_dev); | |
2616 | return ret; | |
2617 | } | |
2618 | ||
2619 | static struct platform_driver omap_vout_driver = { | |
2620 | .driver = { | |
2621 | .name = VOUT_NAME, | |
2622 | }, | |
2623 | .probe = omap_vout_probe, | |
2624 | .remove = omap_vout_remove, | |
2625 | }; | |
2626 | ||
2627 | static int __init omap_vout_init(void) | |
2628 | { | |
2629 | if (platform_driver_register(&omap_vout_driver) != 0) { | |
2630 | printk(KERN_ERR VOUT_NAME ":Could not register Video driver\n"); | |
2631 | return -EINVAL; | |
2632 | } | |
2633 | return 0; | |
2634 | } | |
2635 | ||
2636 | static void omap_vout_cleanup(void) | |
2637 | { | |
2638 | platform_driver_unregister(&omap_vout_driver); | |
2639 | } | |
2640 | ||
2641 | late_initcall(omap_vout_init); | |
2642 | module_exit(omap_vout_cleanup); |