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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> | |
5c7ab634 VH |
38 | #include <linux/irq.h> |
39 | #include <linux/videodev2.h> | |
72915e85 | 40 | #include <linux/dma-mapping.h> |
d1ee8878 | 41 | #include <linux/slab.h> |
5c7ab634 | 42 | |
dd880dd4 | 43 | #include <media/videobuf-dma-contig.h> |
5c7ab634 VH |
44 | #include <media/v4l2-device.h> |
45 | #include <media/v4l2-ioctl.h> | |
46 | ||
6a1c9f6d | 47 | #include <video/omapvrfb.h> |
a0b38cc4 | 48 | #include <video/omapdss.h> |
5c7ab634 VH |
49 | |
50 | #include "omap_voutlib.h" | |
51 | #include "omap_voutdef.h" | |
445e258f | 52 | #include "omap_vout_vrfb.h" |
5c7ab634 VH |
53 | |
54 | MODULE_AUTHOR("Texas Instruments"); | |
55 | MODULE_DESCRIPTION("OMAP Video for Linux Video out driver"); | |
56 | MODULE_LICENSE("GPL"); | |
57 | ||
5c7ab634 VH |
58 | /* Driver Configuration macros */ |
59 | #define VOUT_NAME "omap_vout" | |
60 | ||
61 | enum omap_vout_channels { | |
62 | OMAP_VIDEO1, | |
63 | OMAP_VIDEO2, | |
64 | }; | |
65 | ||
5c7ab634 VH |
66 | static struct videobuf_queue_ops video_vbq_ops; |
67 | /* Variables configurable through module params*/ | |
68 | static u32 video1_numbuffers = 3; | |
69 | static u32 video2_numbuffers = 3; | |
70 | static u32 video1_bufsize = OMAP_VOUT_MAX_BUF_SIZE; | |
71 | static u32 video2_bufsize = OMAP_VOUT_MAX_BUF_SIZE; | |
90ab5ee9 RR |
72 | static bool vid1_static_vrfb_alloc; |
73 | static bool vid2_static_vrfb_alloc; | |
74 | static bool debug; | |
5c7ab634 VH |
75 | |
76 | /* Module parameters */ | |
77 | module_param(video1_numbuffers, uint, S_IRUGO); | |
78 | MODULE_PARM_DESC(video1_numbuffers, | |
79 | "Number of buffers to be allocated at init time for Video1 device."); | |
80 | ||
81 | module_param(video2_numbuffers, uint, S_IRUGO); | |
82 | MODULE_PARM_DESC(video2_numbuffers, | |
83 | "Number of buffers to be allocated at init time for Video2 device."); | |
84 | ||
85 | module_param(video1_bufsize, uint, S_IRUGO); | |
86 | MODULE_PARM_DESC(video1_bufsize, | |
87 | "Size of the buffer to be allocated for video1 device"); | |
88 | ||
89 | module_param(video2_bufsize, uint, S_IRUGO); | |
90 | MODULE_PARM_DESC(video2_bufsize, | |
91 | "Size of the buffer to be allocated for video2 device"); | |
92 | ||
93 | module_param(vid1_static_vrfb_alloc, bool, S_IRUGO); | |
94 | MODULE_PARM_DESC(vid1_static_vrfb_alloc, | |
95 | "Static allocation of the VRFB buffer for video1 device"); | |
96 | ||
97 | module_param(vid2_static_vrfb_alloc, bool, S_IRUGO); | |
98 | MODULE_PARM_DESC(vid2_static_vrfb_alloc, | |
99 | "Static allocation of the VRFB buffer for video2 device"); | |
100 | ||
101 | module_param(debug, bool, S_IRUGO); | |
102 | MODULE_PARM_DESC(debug, "Debug level (0-1)"); | |
103 | ||
104 | /* list of image formats supported by OMAP2 video pipelines */ | |
0d334f7f | 105 | static const struct v4l2_fmtdesc omap_formats[] = { |
5c7ab634 VH |
106 | { |
107 | /* Note: V4L2 defines RGB565 as: | |
108 | * | |
109 | * Byte 0 Byte 1 | |
110 | * g2 g1 g0 r4 r3 r2 r1 r0 b4 b3 b2 b1 b0 g5 g4 g3 | |
111 | * | |
112 | * We interpret RGB565 as: | |
113 | * | |
114 | * Byte 0 Byte 1 | |
115 | * g2 g1 g0 b4 b3 b2 b1 b0 r4 r3 r2 r1 r0 g5 g4 g3 | |
116 | */ | |
117 | .description = "RGB565, le", | |
118 | .pixelformat = V4L2_PIX_FMT_RGB565, | |
119 | }, | |
120 | { | |
121 | /* Note: V4L2 defines RGB32 as: RGB-8-8-8-8 we use | |
122 | * this for RGB24 unpack mode, the last 8 bits are ignored | |
123 | * */ | |
124 | .description = "RGB32, le", | |
125 | .pixelformat = V4L2_PIX_FMT_RGB32, | |
126 | }, | |
127 | { | |
128 | /* Note: V4L2 defines RGB24 as: RGB-8-8-8 we use | |
129 | * this for RGB24 packed mode | |
130 | * | |
131 | */ | |
132 | .description = "RGB24, le", | |
133 | .pixelformat = V4L2_PIX_FMT_RGB24, | |
134 | }, | |
135 | { | |
136 | .description = "YUYV (YUV 4:2:2), packed", | |
137 | .pixelformat = V4L2_PIX_FMT_YUYV, | |
138 | }, | |
139 | { | |
140 | .description = "UYVY, packed", | |
141 | .pixelformat = V4L2_PIX_FMT_UYVY, | |
142 | }, | |
143 | }; | |
144 | ||
145 | #define NUM_OUTPUT_FORMATS (ARRAY_SIZE(omap_formats)) | |
146 | ||
5c7ab634 VH |
147 | /* |
148 | * Try format | |
149 | */ | |
150 | static int omap_vout_try_format(struct v4l2_pix_format *pix) | |
151 | { | |
152 | int ifmt, bpp = 0; | |
153 | ||
154 | pix->height = clamp(pix->height, (u32)VID_MIN_HEIGHT, | |
155 | (u32)VID_MAX_HEIGHT); | |
156 | pix->width = clamp(pix->width, (u32)VID_MIN_WIDTH, (u32)VID_MAX_WIDTH); | |
157 | ||
158 | for (ifmt = 0; ifmt < NUM_OUTPUT_FORMATS; ifmt++) { | |
159 | if (pix->pixelformat == omap_formats[ifmt].pixelformat) | |
160 | break; | |
161 | } | |
162 | ||
163 | if (ifmt == NUM_OUTPUT_FORMATS) | |
164 | ifmt = 0; | |
165 | ||
166 | pix->pixelformat = omap_formats[ifmt].pixelformat; | |
167 | pix->field = V4L2_FIELD_ANY; | |
168 | pix->priv = 0; | |
169 | ||
170 | switch (pix->pixelformat) { | |
171 | case V4L2_PIX_FMT_YUYV: | |
172 | case V4L2_PIX_FMT_UYVY: | |
173 | default: | |
174 | pix->colorspace = V4L2_COLORSPACE_JPEG; | |
175 | bpp = YUYV_BPP; | |
176 | break; | |
177 | case V4L2_PIX_FMT_RGB565: | |
178 | case V4L2_PIX_FMT_RGB565X: | |
179 | pix->colorspace = V4L2_COLORSPACE_SRGB; | |
180 | bpp = RGB565_BPP; | |
181 | break; | |
182 | case V4L2_PIX_FMT_RGB24: | |
183 | pix->colorspace = V4L2_COLORSPACE_SRGB; | |
184 | bpp = RGB24_BPP; | |
185 | break; | |
186 | case V4L2_PIX_FMT_RGB32: | |
187 | case V4L2_PIX_FMT_BGR32: | |
188 | pix->colorspace = V4L2_COLORSPACE_SRGB; | |
189 | bpp = RGB32_BPP; | |
190 | break; | |
191 | } | |
192 | pix->bytesperline = pix->width * bpp; | |
193 | pix->sizeimage = pix->bytesperline * pix->height; | |
194 | ||
195 | return bpp; | |
196 | } | |
197 | ||
198 | /* | |
199 | * omap_vout_uservirt_to_phys: This inline function is used to convert user | |
200 | * space virtual address to physical address. | |
201 | */ | |
202 | static u32 omap_vout_uservirt_to_phys(u32 virtp) | |
203 | { | |
204 | unsigned long physp = 0; | |
205 | struct vm_area_struct *vma; | |
206 | struct mm_struct *mm = current->mm; | |
207 | ||
5c7ab634 | 208 | /* For kernel direct-mapped memory, take the easy way */ |
55ee64b3 AV |
209 | if (virtp >= PAGE_OFFSET) |
210 | return virt_to_phys((void *) virtp); | |
211 | ||
212 | down_read(¤t->mm->mmap_sem); | |
213 | vma = find_vma(mm, virtp); | |
214 | if (vma && (vma->vm_flags & VM_IO) && vma->vm_pgoff) { | |
5c7ab634 VH |
215 | /* this will catch, kernel-allocated, mmaped-to-usermode |
216 | addresses */ | |
217 | physp = (vma->vm_pgoff << PAGE_SHIFT) + (virtp - vma->vm_start); | |
55ee64b3 | 218 | up_read(¤t->mm->mmap_sem); |
5c7ab634 VH |
219 | } else { |
220 | /* otherwise, use get_user_pages() for general userland pages */ | |
221 | int res, nr_pages = 1; | |
222 | struct page *pages; | |
5c7ab634 VH |
223 | |
224 | res = get_user_pages(current, current->mm, virtp, nr_pages, 1, | |
225 | 0, &pages, NULL); | |
226 | up_read(¤t->mm->mmap_sem); | |
227 | ||
228 | if (res == nr_pages) { | |
229 | physp = __pa(page_address(&pages[0]) + | |
230 | (virtp & ~PAGE_MASK)); | |
231 | } else { | |
232 | printk(KERN_WARNING VOUT_NAME | |
233 | "get_user_pages failed\n"); | |
234 | return 0; | |
235 | } | |
236 | } | |
237 | ||
238 | return physp; | |
239 | } | |
240 | ||
5c7ab634 VH |
241 | /* |
242 | * Free the V4L2 buffers | |
243 | */ | |
445e258f | 244 | void omap_vout_free_buffers(struct omap_vout_device *vout) |
5c7ab634 VH |
245 | { |
246 | int i, numbuffers; | |
247 | ||
248 | /* Allocate memory for the buffers */ | |
249 | numbuffers = (vout->vid) ? video2_numbuffers : video1_numbuffers; | |
250 | vout->buffer_size = (vout->vid) ? video2_bufsize : video1_bufsize; | |
251 | ||
252 | for (i = 0; i < numbuffers; i++) { | |
253 | omap_vout_free_buffer(vout->buf_virt_addr[i], | |
254 | vout->buffer_size); | |
255 | vout->buf_phy_addr[i] = 0; | |
256 | vout->buf_virt_addr[i] = 0; | |
257 | } | |
258 | } | |
259 | ||
5c7ab634 VH |
260 | /* |
261 | * Convert V4L2 rotation to DSS rotation | |
262 | * V4L2 understand 0, 90, 180, 270. | |
25985edc | 263 | * Convert to 0, 1, 2 and 3 respectively for DSS |
5c7ab634 VH |
264 | */ |
265 | static int v4l2_rot_to_dss_rot(int v4l2_rotation, | |
266 | enum dss_rotation *rotation, bool mirror) | |
267 | { | |
268 | int ret = 0; | |
269 | ||
270 | switch (v4l2_rotation) { | |
271 | case 90: | |
272 | *rotation = dss_rotation_90_degree; | |
273 | break; | |
274 | case 180: | |
275 | *rotation = dss_rotation_180_degree; | |
276 | break; | |
277 | case 270: | |
278 | *rotation = dss_rotation_270_degree; | |
279 | break; | |
280 | case 0: | |
281 | *rotation = dss_rotation_0_degree; | |
282 | break; | |
283 | default: | |
284 | ret = -EINVAL; | |
285 | } | |
286 | return ret; | |
287 | } | |
288 | ||
5c7ab634 VH |
289 | static int omap_vout_calculate_offset(struct omap_vout_device *vout) |
290 | { | |
5c7ab634 | 291 | struct omapvideo_info *ovid; |
5c7ab634 VH |
292 | struct v4l2_rect *crop = &vout->crop; |
293 | struct v4l2_pix_format *pix = &vout->pix; | |
294 | int *cropped_offset = &vout->cropped_offset; | |
445e258f | 295 | int ps = 2, line_length = 0; |
5c7ab634 VH |
296 | |
297 | ovid = &vout->vid_info; | |
5c7ab634 | 298 | |
445e258f AT |
299 | if (ovid->rotation_type == VOUT_ROT_VRFB) { |
300 | omap_vout_calculate_vrfb_offset(vout); | |
301 | } else { | |
302 | vout->line_length = line_length = pix->width; | |
5c7ab634 | 303 | |
445e258f AT |
304 | if (V4L2_PIX_FMT_YUYV == pix->pixelformat || |
305 | V4L2_PIX_FMT_UYVY == pix->pixelformat) | |
306 | ps = 2; | |
307 | else if (V4L2_PIX_FMT_RGB32 == pix->pixelformat) | |
5c7ab634 | 308 | ps = 4; |
445e258f AT |
309 | else if (V4L2_PIX_FMT_RGB24 == pix->pixelformat) |
310 | ps = 3; | |
5c7ab634 | 311 | |
445e258f AT |
312 | vout->ps = ps; |
313 | ||
314 | *cropped_offset = (line_length * ps) * | |
315 | crop->top + crop->left * ps; | |
5c7ab634 | 316 | } |
445e258f | 317 | |
5c7ab634 | 318 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "%s Offset:%x\n", |
445e258f AT |
319 | __func__, vout->cropped_offset); |
320 | ||
5c7ab634 VH |
321 | return 0; |
322 | } | |
323 | ||
324 | /* | |
325 | * Convert V4L2 pixel format to DSS pixel format | |
326 | */ | |
72fcf2a8 | 327 | static int video_mode_to_dss_mode(struct omap_vout_device *vout) |
5c7ab634 VH |
328 | { |
329 | struct omap_overlay *ovl; | |
330 | struct omapvideo_info *ovid; | |
331 | struct v4l2_pix_format *pix = &vout->pix; | |
332 | enum omap_color_mode mode; | |
333 | ||
334 | ovid = &vout->vid_info; | |
335 | ovl = ovid->overlays[0]; | |
336 | ||
337 | switch (pix->pixelformat) { | |
338 | case 0: | |
339 | break; | |
340 | case V4L2_PIX_FMT_YUYV: | |
341 | mode = OMAP_DSS_COLOR_YUV2; | |
342 | break; | |
343 | case V4L2_PIX_FMT_UYVY: | |
344 | mode = OMAP_DSS_COLOR_UYVY; | |
345 | break; | |
346 | case V4L2_PIX_FMT_RGB565: | |
347 | mode = OMAP_DSS_COLOR_RGB16; | |
348 | break; | |
349 | case V4L2_PIX_FMT_RGB24: | |
350 | mode = OMAP_DSS_COLOR_RGB24P; | |
351 | break; | |
352 | case V4L2_PIX_FMT_RGB32: | |
353 | mode = (ovl->id == OMAP_DSS_VIDEO1) ? | |
354 | OMAP_DSS_COLOR_RGB24U : OMAP_DSS_COLOR_ARGB32; | |
355 | break; | |
356 | case V4L2_PIX_FMT_BGR32: | |
357 | mode = OMAP_DSS_COLOR_RGBX32; | |
358 | break; | |
359 | default: | |
360 | mode = -EINVAL; | |
361 | } | |
362 | return mode; | |
363 | } | |
364 | ||
365 | /* | |
366 | * Setup the overlay | |
367 | */ | |
a137ac87 | 368 | static int omapvid_setup_overlay(struct omap_vout_device *vout, |
5c7ab634 VH |
369 | struct omap_overlay *ovl, int posx, int posy, int outw, |
370 | int outh, u32 addr) | |
371 | { | |
372 | int ret = 0; | |
373 | struct omap_overlay_info info; | |
374 | int cropheight, cropwidth, pixheight, pixwidth; | |
375 | ||
376 | if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 && | |
377 | (outw != vout->pix.width || outh != vout->pix.height)) { | |
378 | ret = -EINVAL; | |
379 | goto setup_ovl_err; | |
380 | } | |
381 | ||
382 | vout->dss_mode = video_mode_to_dss_mode(vout); | |
383 | if (vout->dss_mode == -EINVAL) { | |
384 | ret = -EINVAL; | |
385 | goto setup_ovl_err; | |
386 | } | |
387 | ||
388 | /* Setup the input plane parameters according to | |
389 | * rotation value selected. | |
390 | */ | |
b366888a | 391 | if (is_rotation_90_or_270(vout)) { |
5c7ab634 VH |
392 | cropheight = vout->crop.width; |
393 | cropwidth = vout->crop.height; | |
394 | pixheight = vout->pix.width; | |
395 | pixwidth = vout->pix.height; | |
396 | } else { | |
397 | cropheight = vout->crop.height; | |
398 | cropwidth = vout->crop.width; | |
399 | pixheight = vout->pix.height; | |
400 | pixwidth = vout->pix.width; | |
401 | } | |
402 | ||
403 | ovl->get_overlay_info(ovl, &info); | |
404 | info.paddr = addr; | |
5c7ab634 VH |
405 | info.width = cropwidth; |
406 | info.height = cropheight; | |
407 | info.color_mode = vout->dss_mode; | |
408 | info.mirror = vout->mirror; | |
409 | info.pos_x = posx; | |
410 | info.pos_y = posy; | |
411 | info.out_width = outw; | |
412 | info.out_height = outh; | |
413 | info.global_alpha = vout->win.global_alpha; | |
b366888a | 414 | if (!is_rotation_enabled(vout)) { |
5c7ab634 VH |
415 | info.rotation = 0; |
416 | info.rotation_type = OMAP_DSS_ROT_DMA; | |
417 | info.screen_width = pixwidth; | |
418 | } else { | |
419 | info.rotation = vout->rotation; | |
420 | info.rotation_type = OMAP_DSS_ROT_VRFB; | |
421 | info.screen_width = 2048; | |
422 | } | |
423 | ||
424 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, | |
425 | "%s enable=%d addr=%x width=%d\n height=%d color_mode=%d\n" | |
426 | "rotation=%d mirror=%d posx=%d posy=%d out_width = %d \n" | |
427 | "out_height=%d rotation_type=%d screen_width=%d\n", | |
aaa874a9 | 428 | __func__, ovl->is_enabled(ovl), info.paddr, info.width, info.height, |
5c7ab634 VH |
429 | info.color_mode, info.rotation, info.mirror, info.pos_x, |
430 | info.pos_y, info.out_width, info.out_height, info.rotation_type, | |
431 | info.screen_width); | |
432 | ||
433 | ret = ovl->set_overlay_info(ovl, &info); | |
434 | if (ret) | |
435 | goto setup_ovl_err; | |
436 | ||
437 | return 0; | |
438 | ||
439 | setup_ovl_err: | |
440 | v4l2_warn(&vout->vid_dev->v4l2_dev, "setup_overlay failed\n"); | |
441 | return ret; | |
442 | } | |
443 | ||
444 | /* | |
445 | * Initialize the overlay structure | |
446 | */ | |
a137ac87 | 447 | static int omapvid_init(struct omap_vout_device *vout, u32 addr) |
5c7ab634 VH |
448 | { |
449 | int ret = 0, i; | |
450 | struct v4l2_window *win; | |
451 | struct omap_overlay *ovl; | |
452 | int posx, posy, outw, outh, temp; | |
453 | struct omap_video_timings *timing; | |
454 | struct omapvideo_info *ovid = &vout->vid_info; | |
455 | ||
456 | win = &vout->win; | |
457 | for (i = 0; i < ovid->num_overlays; i++) { | |
d629f03f AT |
458 | struct omap_dss_device *dssdev; |
459 | ||
5c7ab634 | 460 | ovl = ovid->overlays[i]; |
d629f03f AT |
461 | dssdev = ovl->get_device(ovl); |
462 | ||
463 | if (!dssdev) | |
5c7ab634 VH |
464 | return -EINVAL; |
465 | ||
d629f03f | 466 | timing = &dssdev->panel.timings; |
5c7ab634 VH |
467 | |
468 | outw = win->w.width; | |
469 | outh = win->w.height; | |
470 | switch (vout->rotation) { | |
471 | case dss_rotation_90_degree: | |
472 | /* Invert the height and width for 90 | |
473 | * and 270 degree rotation | |
474 | */ | |
475 | temp = outw; | |
476 | outw = outh; | |
477 | outh = temp; | |
478 | posy = (timing->y_res - win->w.width) - win->w.left; | |
479 | posx = win->w.top; | |
480 | break; | |
481 | ||
482 | case dss_rotation_180_degree: | |
483 | posx = (timing->x_res - win->w.width) - win->w.left; | |
484 | posy = (timing->y_res - win->w.height) - win->w.top; | |
485 | break; | |
486 | ||
487 | case dss_rotation_270_degree: | |
488 | temp = outw; | |
489 | outw = outh; | |
490 | outh = temp; | |
491 | posy = win->w.left; | |
492 | posx = (timing->x_res - win->w.height) - win->w.top; | |
493 | break; | |
494 | ||
495 | default: | |
496 | posx = win->w.left; | |
497 | posy = win->w.top; | |
498 | break; | |
499 | } | |
500 | ||
501 | ret = omapvid_setup_overlay(vout, ovl, posx, posy, | |
502 | outw, outh, addr); | |
503 | if (ret) | |
504 | goto omapvid_init_err; | |
505 | } | |
506 | return 0; | |
507 | ||
508 | omapvid_init_err: | |
509 | v4l2_warn(&vout->vid_dev->v4l2_dev, "apply_changes failed\n"); | |
510 | return ret; | |
511 | } | |
512 | ||
513 | /* | |
514 | * Apply the changes set the go bit of DSS | |
515 | */ | |
a137ac87 | 516 | static int omapvid_apply_changes(struct omap_vout_device *vout) |
5c7ab634 VH |
517 | { |
518 | int i; | |
519 | struct omap_overlay *ovl; | |
520 | struct omapvideo_info *ovid = &vout->vid_info; | |
521 | ||
522 | for (i = 0; i < ovid->num_overlays; i++) { | |
d629f03f AT |
523 | struct omap_dss_device *dssdev; |
524 | ||
5c7ab634 | 525 | ovl = ovid->overlays[i]; |
d629f03f AT |
526 | dssdev = ovl->get_device(ovl); |
527 | if (!dssdev) | |
5c7ab634 VH |
528 | return -EINVAL; |
529 | ovl->manager->apply(ovl->manager); | |
530 | } | |
531 | ||
532 | return 0; | |
533 | } | |
534 | ||
27801688 AT |
535 | static int omapvid_handle_interlace_display(struct omap_vout_device *vout, |
536 | unsigned int irqstatus, struct timeval timevalue) | |
537 | { | |
538 | u32 fid; | |
539 | ||
540 | if (vout->first_int) { | |
541 | vout->first_int = 0; | |
542 | goto err; | |
543 | } | |
544 | ||
545 | if (irqstatus & DISPC_IRQ_EVSYNC_ODD) | |
546 | fid = 1; | |
547 | else if (irqstatus & DISPC_IRQ_EVSYNC_EVEN) | |
548 | fid = 0; | |
549 | else | |
550 | goto err; | |
551 | ||
552 | vout->field_id ^= 1; | |
553 | if (fid != vout->field_id) { | |
554 | if (fid == 0) | |
555 | vout->field_id = fid; | |
556 | } else if (0 == fid) { | |
557 | if (vout->cur_frm == vout->next_frm) | |
558 | goto err; | |
559 | ||
560 | vout->cur_frm->ts = timevalue; | |
561 | vout->cur_frm->state = VIDEOBUF_DONE; | |
562 | wake_up_interruptible(&vout->cur_frm->done); | |
563 | vout->cur_frm = vout->next_frm; | |
564 | } else { | |
565 | if (list_empty(&vout->dma_queue) || | |
566 | (vout->cur_frm != vout->next_frm)) | |
567 | goto err; | |
568 | } | |
569 | ||
570 | return vout->field_id; | |
571 | err: | |
572 | return 0; | |
573 | } | |
574 | ||
a137ac87 | 575 | static void omap_vout_isr(void *arg, unsigned int irqstatus) |
5c7ab634 | 576 | { |
e144ca64 AT |
577 | int ret, fid, mgr_id; |
578 | u32 addr, irq; | |
5c7ab634 VH |
579 | struct omap_overlay *ovl; |
580 | struct timeval timevalue; | |
581 | struct omapvideo_info *ovid; | |
582 | struct omap_dss_device *cur_display; | |
583 | struct omap_vout_device *vout = (struct omap_vout_device *)arg; | |
584 | ||
585 | if (!vout->streaming) | |
586 | return; | |
587 | ||
588 | ovid = &vout->vid_info; | |
589 | ovl = ovid->overlays[0]; | |
5c7ab634 | 590 | |
e144ca64 | 591 | mgr_id = ovl->manager->id; |
d629f03f AT |
592 | |
593 | /* get the display device attached to the overlay */ | |
594 | cur_display = ovl->get_device(ovl); | |
595 | ||
596 | if (!cur_display) | |
597 | return; | |
5c7ab634 VH |
598 | |
599 | spin_lock(&vout->vbq_lock); | |
8e6057b5 | 600 | v4l2_get_timestamp(&timevalue); |
5c7ab634 | 601 | |
27801688 | 602 | switch (cur_display->type) { |
881a9640 | 603 | case OMAP_DISPLAY_TYPE_DSI: |
27801688 | 604 | case OMAP_DISPLAY_TYPE_DPI: |
e144ca64 AT |
605 | if (mgr_id == OMAP_DSS_CHANNEL_LCD) |
606 | irq = DISPC_IRQ_VSYNC; | |
607 | else if (mgr_id == OMAP_DSS_CHANNEL_LCD2) | |
608 | irq = DISPC_IRQ_VSYNC2; | |
609 | else | |
5c7ab634 VH |
610 | goto vout_isr_err; |
611 | ||
e144ca64 | 612 | if (!(irqstatus & irq)) |
5251dd6c | 613 | goto vout_isr_err; |
27801688 AT |
614 | break; |
615 | case OMAP_DISPLAY_TYPE_VENC: | |
616 | fid = omapvid_handle_interlace_display(vout, irqstatus, | |
617 | timevalue); | |
618 | if (!fid) | |
5c7ab634 | 619 | goto vout_isr_err; |
27801688 AT |
620 | break; |
621 | case OMAP_DISPLAY_TYPE_HDMI: | |
622 | if (!(irqstatus & DISPC_IRQ_EVSYNC_EVEN)) | |
623 | goto vout_isr_err; | |
624 | break; | |
625 | default: | |
626 | goto vout_isr_err; | |
627 | } | |
5c7ab634 | 628 | |
27801688 AT |
629 | if (!vout->first_int && (vout->cur_frm != vout->next_frm)) { |
630 | vout->cur_frm->ts = timevalue; | |
631 | vout->cur_frm->state = VIDEOBUF_DONE; | |
632 | wake_up_interruptible(&vout->cur_frm->done); | |
633 | vout->cur_frm = vout->next_frm; | |
634 | } | |
5c7ab634 | 635 | |
27801688 AT |
636 | vout->first_int = 0; |
637 | if (list_empty(&vout->dma_queue)) | |
638 | goto vout_isr_err; | |
5c7ab634 | 639 | |
27801688 AT |
640 | vout->next_frm = list_entry(vout->dma_queue.next, |
641 | struct videobuf_buffer, queue); | |
642 | list_del(&vout->next_frm->queue); | |
5c7ab634 | 643 | |
27801688 | 644 | vout->next_frm->state = VIDEOBUF_ACTIVE; |
5c7ab634 | 645 | |
27801688 AT |
646 | addr = (unsigned long) vout->queued_buf_addr[vout->next_frm->i] |
647 | + vout->cropped_offset; | |
5c7ab634 | 648 | |
27801688 AT |
649 | /* First save the configuration in ovelray structure */ |
650 | ret = omapvid_init(vout, addr); | |
15170025 | 651 | if (ret) { |
27801688 AT |
652 | printk(KERN_ERR VOUT_NAME |
653 | "failed to set overlay info\n"); | |
15170025 FF |
654 | goto vout_isr_err; |
655 | } | |
656 | ||
27801688 AT |
657 | /* Enable the pipeline and set the Go bit */ |
658 | ret = omapvid_apply_changes(vout); | |
659 | if (ret) | |
660 | printk(KERN_ERR VOUT_NAME "failed to change mode\n"); | |
5c7ab634 VH |
661 | |
662 | vout_isr_err: | |
663 | spin_unlock(&vout->vbq_lock); | |
664 | } | |
665 | ||
5c7ab634 VH |
666 | /* Video buffer call backs */ |
667 | ||
668 | /* | |
669 | * Buffer setup function is called by videobuf layer when REQBUF ioctl is | |
670 | * called. This is used to setup buffers and return size and count of | |
671 | * buffers allocated. After the call to this buffer, videobuf layer will | |
672 | * setup buffer queue depending on the size and count of buffers | |
673 | */ | |
674 | static int omap_vout_buffer_setup(struct videobuf_queue *q, unsigned int *count, | |
675 | unsigned int *size) | |
676 | { | |
677 | int startindex = 0, i, j; | |
678 | u32 phy_addr = 0, virt_addr = 0; | |
679 | struct omap_vout_device *vout = q->priv_data; | |
445e258f | 680 | struct omapvideo_info *ovid = &vout->vid_info; |
d06db7ec | 681 | int vid_max_buf_size; |
5c7ab634 VH |
682 | |
683 | if (!vout) | |
684 | return -EINVAL; | |
685 | ||
d06db7ec AT |
686 | vid_max_buf_size = vout->vid == OMAP_VIDEO1 ? video1_bufsize : |
687 | video2_bufsize; | |
688 | ||
5c7ab634 VH |
689 | if (V4L2_BUF_TYPE_VIDEO_OUTPUT != q->type) |
690 | return -EINVAL; | |
691 | ||
692 | startindex = (vout->vid == OMAP_VIDEO1) ? | |
693 | video1_numbuffers : video2_numbuffers; | |
694 | if (V4L2_MEMORY_MMAP == vout->memory && *count < startindex) | |
695 | *count = startindex; | |
696 | ||
445e258f | 697 | if (ovid->rotation_type == VOUT_ROT_VRFB) { |
5c7ab634 VH |
698 | if (omap_vout_vrfb_buffer_setup(vout, count, startindex)) |
699 | return -ENOMEM; | |
445e258f | 700 | } |
5c7ab634 VH |
701 | |
702 | if (V4L2_MEMORY_MMAP != vout->memory) | |
703 | return 0; | |
704 | ||
705 | /* Now allocated the V4L2 buffers */ | |
706 | *size = PAGE_ALIGN(vout->pix.width * vout->pix.height * vout->bpp); | |
707 | startindex = (vout->vid == OMAP_VIDEO1) ? | |
708 | video1_numbuffers : video2_numbuffers; | |
709 | ||
383e4f69 | 710 | /* Check the size of the buffer */ |
d06db7ec | 711 | if (*size > vid_max_buf_size) { |
383e4f69 VH |
712 | v4l2_err(&vout->vid_dev->v4l2_dev, |
713 | "buffer allocation mismatch [%u] [%u]\n", | |
714 | *size, vout->buffer_size); | |
715 | return -ENOMEM; | |
716 | } | |
717 | ||
5c7ab634 VH |
718 | for (i = startindex; i < *count; i++) { |
719 | vout->buffer_size = *size; | |
720 | ||
721 | virt_addr = omap_vout_alloc_buffer(vout->buffer_size, | |
722 | &phy_addr); | |
723 | if (!virt_addr) { | |
445e258f | 724 | if (ovid->rotation_type == VOUT_ROT_NONE) { |
5c7ab634 | 725 | break; |
445e258f AT |
726 | } else { |
727 | if (!is_rotation_enabled(vout)) | |
728 | break; | |
5c7ab634 VH |
729 | /* Free the VRFB buffers if no space for V4L2 buffers */ |
730 | for (j = i; j < *count; j++) { | |
731 | omap_vout_free_buffer( | |
732 | vout->smsshado_virt_addr[j], | |
733 | vout->smsshado_size); | |
734 | vout->smsshado_virt_addr[j] = 0; | |
735 | vout->smsshado_phy_addr[j] = 0; | |
445e258f | 736 | } |
5c7ab634 VH |
737 | } |
738 | } | |
739 | vout->buf_virt_addr[i] = virt_addr; | |
740 | vout->buf_phy_addr[i] = phy_addr; | |
741 | } | |
742 | *count = vout->buffer_allocated = i; | |
743 | ||
744 | return 0; | |
745 | } | |
746 | ||
747 | /* | |
748 | * Free the V4L2 buffers additionally allocated than default | |
445e258f | 749 | * number of buffers |
5c7ab634 | 750 | */ |
445e258f | 751 | static void omap_vout_free_extra_buffers(struct omap_vout_device *vout) |
5c7ab634 VH |
752 | { |
753 | int num_buffers = 0, i; | |
754 | ||
755 | num_buffers = (vout->vid == OMAP_VIDEO1) ? | |
756 | video1_numbuffers : video2_numbuffers; | |
757 | ||
758 | for (i = num_buffers; i < vout->buffer_allocated; i++) { | |
759 | if (vout->buf_virt_addr[i]) | |
760 | omap_vout_free_buffer(vout->buf_virt_addr[i], | |
761 | vout->buffer_size); | |
762 | ||
763 | vout->buf_virt_addr[i] = 0; | |
764 | vout->buf_phy_addr[i] = 0; | |
765 | } | |
5c7ab634 VH |
766 | vout->buffer_allocated = num_buffers; |
767 | } | |
768 | ||
769 | /* | |
770 | * This function will be called when VIDIOC_QBUF ioctl is called. | |
771 | * It prepare buffers before give out for the display. This function | |
772 | * converts user space virtual address into physical address if userptr memory | |
773 | * exchange mechanism is used. If rotation is enabled, it copies entire | |
774 | * buffer into VRFB memory space before giving it to the DSS. | |
775 | */ | |
776 | static int omap_vout_buffer_prepare(struct videobuf_queue *q, | |
445e258f AT |
777 | struct videobuf_buffer *vb, |
778 | enum v4l2_field field) | |
5c7ab634 | 779 | { |
5c7ab634 | 780 | struct omap_vout_device *vout = q->priv_data; |
445e258f | 781 | struct omapvideo_info *ovid = &vout->vid_info; |
5c7ab634 VH |
782 | |
783 | if (VIDEOBUF_NEEDS_INIT == vb->state) { | |
784 | vb->width = vout->pix.width; | |
785 | vb->height = vout->pix.height; | |
786 | vb->size = vb->width * vb->height * vout->bpp; | |
787 | vb->field = field; | |
788 | } | |
789 | vb->state = VIDEOBUF_PREPARED; | |
790 | /* if user pointer memory mechanism is used, get the physical | |
791 | * address of the buffer | |
792 | */ | |
793 | if (V4L2_MEMORY_USERPTR == vb->memory) { | |
794 | if (0 == vb->baddr) | |
795 | return -EINVAL; | |
5c7ab634 | 796 | /* Physical address */ |
dd880dd4 VH |
797 | vout->queued_buf_addr[vb->i] = (u8 *) |
798 | omap_vout_uservirt_to_phys(vb->baddr); | |
799 | } else { | |
72915e85 AJ |
800 | u32 addr, dma_addr; |
801 | unsigned long size; | |
802 | ||
803 | addr = (unsigned long) vout->buf_virt_addr[vb->i]; | |
804 | size = (unsigned long) vb->size; | |
805 | ||
806 | dma_addr = dma_map_single(vout->vid_dev->v4l2_dev.dev, (void *) addr, | |
807 | size, DMA_TO_DEVICE); | |
808 | if (dma_mapping_error(vout->vid_dev->v4l2_dev.dev, dma_addr)) | |
809 | v4l2_err(&vout->vid_dev->v4l2_dev, "dma_map_single failed\n"); | |
810 | ||
dd880dd4 | 811 | vout->queued_buf_addr[vb->i] = (u8 *)vout->buf_phy_addr[vb->i]; |
5c7ab634 VH |
812 | } |
813 | ||
445e258f AT |
814 | if (ovid->rotation_type == VOUT_ROT_VRFB) |
815 | return omap_vout_prepare_vrfb(vout, vb); | |
816 | else | |
5c7ab634 | 817 | return 0; |
5c7ab634 VH |
818 | } |
819 | ||
820 | /* | |
25985edc | 821 | * Buffer queue function will be called from the videobuf layer when _QBUF |
5c7ab634 VH |
822 | * ioctl is called. It is used to enqueue buffer, which is ready to be |
823 | * displayed. | |
824 | */ | |
825 | static void omap_vout_buffer_queue(struct videobuf_queue *q, | |
826 | struct videobuf_buffer *vb) | |
827 | { | |
828 | struct omap_vout_device *vout = q->priv_data; | |
829 | ||
830 | /* Driver is also maintainig a queue. So enqueue buffer in the driver | |
831 | * queue */ | |
832 | list_add_tail(&vb->queue, &vout->dma_queue); | |
833 | ||
834 | vb->state = VIDEOBUF_QUEUED; | |
835 | } | |
836 | ||
837 | /* | |
838 | * Buffer release function is called from videobuf layer to release buffer | |
839 | * which are already allocated | |
840 | */ | |
841 | static void omap_vout_buffer_release(struct videobuf_queue *q, | |
842 | struct videobuf_buffer *vb) | |
843 | { | |
844 | struct omap_vout_device *vout = q->priv_data; | |
845 | ||
846 | vb->state = VIDEOBUF_NEEDS_INIT; | |
847 | ||
848 | if (V4L2_MEMORY_MMAP != vout->memory) | |
849 | return; | |
850 | } | |
851 | ||
852 | /* | |
853 | * File operations | |
854 | */ | |
94f3f48f LP |
855 | static unsigned int omap_vout_poll(struct file *file, |
856 | struct poll_table_struct *wait) | |
857 | { | |
858 | struct omap_vout_device *vout = file->private_data; | |
859 | struct videobuf_queue *q = &vout->vbq; | |
860 | ||
861 | return videobuf_poll_stream(file, q, wait); | |
862 | } | |
863 | ||
5c7ab634 VH |
864 | static void omap_vout_vm_open(struct vm_area_struct *vma) |
865 | { | |
866 | struct omap_vout_device *vout = vma->vm_private_data; | |
867 | ||
868 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, | |
869 | "vm_open [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end); | |
870 | vout->mmap_count++; | |
871 | } | |
872 | ||
873 | static void omap_vout_vm_close(struct vm_area_struct *vma) | |
874 | { | |
875 | struct omap_vout_device *vout = vma->vm_private_data; | |
876 | ||
877 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, | |
878 | "vm_close [vma=%08lx-%08lx]\n", vma->vm_start, vma->vm_end); | |
879 | vout->mmap_count--; | |
880 | } | |
881 | ||
882 | static struct vm_operations_struct omap_vout_vm_ops = { | |
883 | .open = omap_vout_vm_open, | |
884 | .close = omap_vout_vm_close, | |
885 | }; | |
886 | ||
887 | static int omap_vout_mmap(struct file *file, struct vm_area_struct *vma) | |
888 | { | |
889 | int i; | |
890 | void *pos; | |
891 | unsigned long start = vma->vm_start; | |
892 | unsigned long size = (vma->vm_end - vma->vm_start); | |
5c7ab634 VH |
893 | struct omap_vout_device *vout = file->private_data; |
894 | struct videobuf_queue *q = &vout->vbq; | |
895 | ||
896 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, | |
897 | " %s pgoff=0x%lx, start=0x%lx, end=0x%lx\n", __func__, | |
898 | vma->vm_pgoff, vma->vm_start, vma->vm_end); | |
899 | ||
900 | /* look for the buffer to map */ | |
901 | for (i = 0; i < VIDEO_MAX_FRAME; i++) { | |
902 | if (NULL == q->bufs[i]) | |
903 | continue; | |
904 | if (V4L2_MEMORY_MMAP != q->bufs[i]->memory) | |
905 | continue; | |
906 | if (q->bufs[i]->boff == (vma->vm_pgoff << PAGE_SHIFT)) | |
907 | break; | |
908 | } | |
909 | ||
910 | if (VIDEO_MAX_FRAME == i) { | |
911 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, | |
912 | "offset invalid [offset=0x%lx]\n", | |
913 | (vma->vm_pgoff << PAGE_SHIFT)); | |
914 | return -EINVAL; | |
915 | } | |
383e4f69 VH |
916 | /* Check the size of the buffer */ |
917 | if (size > vout->buffer_size) { | |
918 | v4l2_err(&vout->vid_dev->v4l2_dev, | |
919 | "insufficient memory [%lu] [%u]\n", | |
920 | size, vout->buffer_size); | |
921 | return -ENOMEM; | |
922 | } | |
923 | ||
5c7ab634 VH |
924 | q->bufs[i]->baddr = vma->vm_start; |
925 | ||
314e51b9 | 926 | vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; |
5c7ab634 VH |
927 | vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); |
928 | vma->vm_ops = &omap_vout_vm_ops; | |
929 | vma->vm_private_data = (void *) vout; | |
dd880dd4 | 930 | pos = (void *)vout->buf_virt_addr[i]; |
5c7ab634 VH |
931 | vma->vm_pgoff = virt_to_phys((void *)pos) >> PAGE_SHIFT; |
932 | while (size > 0) { | |
933 | unsigned long pfn; | |
934 | pfn = virt_to_phys((void *) pos) >> PAGE_SHIFT; | |
935 | if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED)) | |
936 | return -EAGAIN; | |
937 | start += PAGE_SIZE; | |
938 | pos += PAGE_SIZE; | |
939 | size -= PAGE_SIZE; | |
940 | } | |
941 | vout->mmap_count++; | |
942 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__); | |
943 | ||
944 | return 0; | |
945 | } | |
946 | ||
947 | static int omap_vout_release(struct file *file) | |
948 | { | |
949 | unsigned int ret, i; | |
950 | struct videobuf_queue *q; | |
951 | struct omapvideo_info *ovid; | |
952 | struct omap_vout_device *vout = file->private_data; | |
953 | ||
954 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__); | |
955 | ovid = &vout->vid_info; | |
956 | ||
957 | if (!vout) | |
958 | return 0; | |
959 | ||
960 | q = &vout->vbq; | |
961 | /* Disable all the overlay managers connected with this interface */ | |
962 | for (i = 0; i < ovid->num_overlays; i++) { | |
963 | struct omap_overlay *ovl = ovid->overlays[i]; | |
d629f03f AT |
964 | struct omap_dss_device *dssdev = ovl->get_device(ovl); |
965 | ||
966 | if (dssdev) | |
aaa874a9 | 967 | ovl->disable(ovl); |
5c7ab634 VH |
968 | } |
969 | /* Turn off the pipeline */ | |
970 | ret = omapvid_apply_changes(vout); | |
971 | if (ret) | |
972 | v4l2_warn(&vout->vid_dev->v4l2_dev, | |
973 | "Unable to apply changes\n"); | |
974 | ||
975 | /* Free all buffers */ | |
445e258f AT |
976 | omap_vout_free_extra_buffers(vout); |
977 | ||
978 | /* Free the VRFB buffers only if they are allocated | |
979 | * during reqbufs. Don't free if init time allocated | |
980 | */ | |
981 | if (ovid->rotation_type == VOUT_ROT_VRFB) { | |
982 | if (!vout->vrfb_static_allocation) | |
983 | omap_vout_free_vrfb_buffers(vout); | |
984 | } | |
5c7ab634 VH |
985 | videobuf_mmap_free(q); |
986 | ||
987 | /* Even if apply changes fails we should continue | |
b595076a | 988 | freeing allocated memory */ |
5c7ab634 VH |
989 | if (vout->streaming) { |
990 | u32 mask = 0; | |
991 | ||
992 | mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | | |
5251dd6c | 993 | DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_VSYNC2; |
5c7ab634 VH |
994 | omap_dispc_unregister_isr(omap_vout_isr, vout, mask); |
995 | vout->streaming = 0; | |
996 | ||
997 | videobuf_streamoff(q); | |
998 | videobuf_queue_cancel(q); | |
999 | } | |
1000 | ||
1001 | if (vout->mmap_count != 0) | |
1002 | vout->mmap_count = 0; | |
1003 | ||
1004 | vout->opened -= 1; | |
1005 | file->private_data = NULL; | |
1006 | ||
1007 | if (vout->buffer_allocated) | |
1008 | videobuf_mmap_free(q); | |
1009 | ||
1010 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__); | |
1011 | return ret; | |
1012 | } | |
1013 | ||
1014 | static int omap_vout_open(struct file *file) | |
1015 | { | |
1016 | struct videobuf_queue *q; | |
1017 | struct omap_vout_device *vout = NULL; | |
1018 | ||
1019 | vout = video_drvdata(file); | |
1020 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Entering %s\n", __func__); | |
1021 | ||
1022 | if (vout == NULL) | |
1023 | return -ENODEV; | |
1024 | ||
1025 | /* for now, we only support single open */ | |
1026 | if (vout->opened) | |
1027 | return -EBUSY; | |
1028 | ||
1029 | vout->opened += 1; | |
1030 | ||
1031 | file->private_data = vout; | |
1032 | vout->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
1033 | ||
1034 | q = &vout->vbq; | |
1035 | video_vbq_ops.buf_setup = omap_vout_buffer_setup; | |
1036 | video_vbq_ops.buf_prepare = omap_vout_buffer_prepare; | |
1037 | video_vbq_ops.buf_release = omap_vout_buffer_release; | |
1038 | video_vbq_ops.buf_queue = omap_vout_buffer_queue; | |
1039 | spin_lock_init(&vout->vbq_lock); | |
1040 | ||
dd880dd4 VH |
1041 | videobuf_queue_dma_contig_init(q, &video_vbq_ops, q->dev, |
1042 | &vout->vbq_lock, vout->type, V4L2_FIELD_NONE, | |
e3cfd447 | 1043 | sizeof(struct videobuf_buffer), vout, NULL); |
5c7ab634 VH |
1044 | |
1045 | v4l2_dbg(1, debug, &vout->vid_dev->v4l2_dev, "Exiting %s\n", __func__); | |
1046 | return 0; | |
1047 | } | |
1048 | ||
1049 | /* | |
1050 | * V4L2 ioctls | |
1051 | */ | |
1052 | static int vidioc_querycap(struct file *file, void *fh, | |
1053 | struct v4l2_capability *cap) | |
1054 | { | |
1055 | struct omap_vout_device *vout = fh; | |
1056 | ||
1057 | strlcpy(cap->driver, VOUT_NAME, sizeof(cap->driver)); | |
1058 | strlcpy(cap->card, vout->vfd->name, sizeof(cap->card)); | |
1059 | cap->bus_info[0] = '\0'; | |
047a01fd HV |
1060 | cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_OUTPUT | |
1061 | V4L2_CAP_VIDEO_OUTPUT_OVERLAY; | |
5c7ab634 VH |
1062 | |
1063 | return 0; | |
1064 | } | |
1065 | ||
1066 | static int vidioc_enum_fmt_vid_out(struct file *file, void *fh, | |
1067 | struct v4l2_fmtdesc *fmt) | |
1068 | { | |
1069 | int index = fmt->index; | |
5c7ab634 | 1070 | |
5c7ab634 VH |
1071 | if (index >= NUM_OUTPUT_FORMATS) |
1072 | return -EINVAL; | |
1073 | ||
1074 | fmt->flags = omap_formats[index].flags; | |
1075 | strlcpy(fmt->description, omap_formats[index].description, | |
1076 | sizeof(fmt->description)); | |
1077 | fmt->pixelformat = omap_formats[index].pixelformat; | |
1078 | ||
1079 | return 0; | |
1080 | } | |
1081 | ||
1082 | static int vidioc_g_fmt_vid_out(struct file *file, void *fh, | |
1083 | struct v4l2_format *f) | |
1084 | { | |
1085 | struct omap_vout_device *vout = fh; | |
1086 | ||
1087 | f->fmt.pix = vout->pix; | |
1088 | return 0; | |
1089 | ||
1090 | } | |
1091 | ||
1092 | static int vidioc_try_fmt_vid_out(struct file *file, void *fh, | |
1093 | struct v4l2_format *f) | |
1094 | { | |
1095 | struct omap_overlay *ovl; | |
1096 | struct omapvideo_info *ovid; | |
1097 | struct omap_video_timings *timing; | |
1098 | struct omap_vout_device *vout = fh; | |
d629f03f | 1099 | struct omap_dss_device *dssdev; |
5c7ab634 VH |
1100 | |
1101 | ovid = &vout->vid_info; | |
1102 | ovl = ovid->overlays[0]; | |
d629f03f AT |
1103 | /* get the display device attached to the overlay */ |
1104 | dssdev = ovl->get_device(ovl); | |
5c7ab634 | 1105 | |
d629f03f | 1106 | if (!dssdev) |
5c7ab634 | 1107 | return -EINVAL; |
d629f03f AT |
1108 | |
1109 | timing = &dssdev->panel.timings; | |
5c7ab634 VH |
1110 | |
1111 | vout->fbuf.fmt.height = timing->y_res; | |
1112 | vout->fbuf.fmt.width = timing->x_res; | |
1113 | ||
1114 | omap_vout_try_format(&f->fmt.pix); | |
1115 | return 0; | |
1116 | } | |
1117 | ||
1118 | static int vidioc_s_fmt_vid_out(struct file *file, void *fh, | |
1119 | struct v4l2_format *f) | |
1120 | { | |
1121 | int ret, bpp; | |
1122 | struct omap_overlay *ovl; | |
1123 | struct omapvideo_info *ovid; | |
1124 | struct omap_video_timings *timing; | |
1125 | struct omap_vout_device *vout = fh; | |
d629f03f | 1126 | struct omap_dss_device *dssdev; |
5c7ab634 VH |
1127 | |
1128 | if (vout->streaming) | |
1129 | return -EBUSY; | |
1130 | ||
1131 | mutex_lock(&vout->lock); | |
1132 | ||
1133 | ovid = &vout->vid_info; | |
1134 | ovl = ovid->overlays[0]; | |
d629f03f | 1135 | dssdev = ovl->get_device(ovl); |
5c7ab634 VH |
1136 | |
1137 | /* get the display device attached to the overlay */ | |
d629f03f | 1138 | if (!dssdev) { |
5c7ab634 VH |
1139 | ret = -EINVAL; |
1140 | goto s_fmt_vid_out_exit; | |
1141 | } | |
d629f03f | 1142 | timing = &dssdev->panel.timings; |
5c7ab634 VH |
1143 | |
1144 | /* We dont support RGB24-packed mode if vrfb rotation | |
1145 | * is enabled*/ | |
b366888a | 1146 | if ((is_rotation_enabled(vout)) && |
5c7ab634 VH |
1147 | f->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) { |
1148 | ret = -EINVAL; | |
1149 | goto s_fmt_vid_out_exit; | |
1150 | } | |
1151 | ||
1152 | /* get the framebuffer parameters */ | |
1153 | ||
b366888a | 1154 | if (is_rotation_90_or_270(vout)) { |
5c7ab634 VH |
1155 | vout->fbuf.fmt.height = timing->x_res; |
1156 | vout->fbuf.fmt.width = timing->y_res; | |
1157 | } else { | |
1158 | vout->fbuf.fmt.height = timing->y_res; | |
1159 | vout->fbuf.fmt.width = timing->x_res; | |
1160 | } | |
1161 | ||
1162 | /* change to samller size is OK */ | |
1163 | ||
1164 | bpp = omap_vout_try_format(&f->fmt.pix); | |
1165 | f->fmt.pix.sizeimage = f->fmt.pix.width * f->fmt.pix.height * bpp; | |
1166 | ||
1167 | /* try & set the new output format */ | |
1168 | vout->bpp = bpp; | |
1169 | vout->pix = f->fmt.pix; | |
1170 | vout->vrfb_bpp = 1; | |
1171 | ||
1172 | /* If YUYV then vrfb bpp is 2, for others its 1 */ | |
1173 | if (V4L2_PIX_FMT_YUYV == vout->pix.pixelformat || | |
1174 | V4L2_PIX_FMT_UYVY == vout->pix.pixelformat) | |
1175 | vout->vrfb_bpp = 2; | |
1176 | ||
1177 | /* set default crop and win */ | |
1178 | omap_vout_new_format(&vout->pix, &vout->fbuf, &vout->crop, &vout->win); | |
1179 | ||
5c7ab634 VH |
1180 | ret = 0; |
1181 | ||
1182 | s_fmt_vid_out_exit: | |
1183 | mutex_unlock(&vout->lock); | |
1184 | return ret; | |
1185 | } | |
1186 | ||
1187 | static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, | |
1188 | struct v4l2_format *f) | |
1189 | { | |
1190 | int ret = 0; | |
1191 | struct omap_vout_device *vout = fh; | |
11354dd5 AT |
1192 | struct omap_overlay *ovl; |
1193 | struct omapvideo_info *ovid; | |
5c7ab634 VH |
1194 | struct v4l2_window *win = &f->fmt.win; |
1195 | ||
11354dd5 AT |
1196 | ovid = &vout->vid_info; |
1197 | ovl = ovid->overlays[0]; | |
1198 | ||
5c7ab634 VH |
1199 | ret = omap_vout_try_window(&vout->fbuf, win); |
1200 | ||
1201 | if (!ret) { | |
11354dd5 | 1202 | if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0) |
5c7ab634 VH |
1203 | win->global_alpha = 255; |
1204 | else | |
1205 | win->global_alpha = f->fmt.win.global_alpha; | |
1206 | } | |
1207 | ||
1208 | return ret; | |
1209 | } | |
1210 | ||
1211 | static int vidioc_s_fmt_vid_overlay(struct file *file, void *fh, | |
1212 | struct v4l2_format *f) | |
1213 | { | |
1214 | int ret = 0; | |
1215 | struct omap_overlay *ovl; | |
1216 | struct omapvideo_info *ovid; | |
1217 | struct omap_vout_device *vout = fh; | |
1218 | struct v4l2_window *win = &f->fmt.win; | |
1219 | ||
1220 | mutex_lock(&vout->lock); | |
1221 | ovid = &vout->vid_info; | |
1222 | ovl = ovid->overlays[0]; | |
1223 | ||
1224 | ret = omap_vout_new_window(&vout->crop, &vout->win, &vout->fbuf, win); | |
1225 | if (!ret) { | |
11354dd5 AT |
1226 | /* Video1 plane does not support global alpha on OMAP3 */ |
1227 | if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0) | |
5c7ab634 VH |
1228 | vout->win.global_alpha = 255; |
1229 | else | |
1230 | vout->win.global_alpha = f->fmt.win.global_alpha; | |
1231 | ||
1232 | vout->win.chromakey = f->fmt.win.chromakey; | |
1233 | } | |
1234 | mutex_unlock(&vout->lock); | |
1235 | return ret; | |
1236 | } | |
1237 | ||
5c7ab634 VH |
1238 | static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh, |
1239 | struct v4l2_format *f) | |
1240 | { | |
1241 | u32 key_value = 0; | |
1242 | struct omap_overlay *ovl; | |
1243 | struct omapvideo_info *ovid; | |
1244 | struct omap_vout_device *vout = fh; | |
1245 | struct omap_overlay_manager_info info; | |
1246 | struct v4l2_window *win = &f->fmt.win; | |
1247 | ||
1248 | ovid = &vout->vid_info; | |
1249 | ovl = ovid->overlays[0]; | |
1250 | ||
1251 | win->w = vout->win.w; | |
1252 | win->field = vout->win.field; | |
1253 | win->global_alpha = vout->win.global_alpha; | |
1254 | ||
1255 | if (ovl->manager && ovl->manager->get_manager_info) { | |
1256 | ovl->manager->get_manager_info(ovl->manager, &info); | |
1257 | key_value = info.trans_key; | |
1258 | } | |
1259 | win->chromakey = key_value; | |
1260 | return 0; | |
1261 | } | |
1262 | ||
1263 | static int vidioc_cropcap(struct file *file, void *fh, | |
1264 | struct v4l2_cropcap *cropcap) | |
1265 | { | |
1266 | struct omap_vout_device *vout = fh; | |
1267 | struct v4l2_pix_format *pix = &vout->pix; | |
1268 | ||
1269 | if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
1270 | return -EINVAL; | |
1271 | ||
1272 | /* Width and height are always even */ | |
1273 | cropcap->bounds.width = pix->width & ~1; | |
1274 | cropcap->bounds.height = pix->height & ~1; | |
1275 | ||
1276 | omap_vout_default_crop(&vout->pix, &vout->fbuf, &cropcap->defrect); | |
1277 | cropcap->pixelaspect.numerator = 1; | |
1278 | cropcap->pixelaspect.denominator = 1; | |
1279 | return 0; | |
1280 | } | |
1281 | ||
1282 | static int vidioc_g_crop(struct file *file, void *fh, struct v4l2_crop *crop) | |
1283 | { | |
1284 | struct omap_vout_device *vout = fh; | |
1285 | ||
1286 | if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
1287 | return -EINVAL; | |
1288 | crop->c = vout->crop; | |
1289 | return 0; | |
1290 | } | |
1291 | ||
4f996594 | 1292 | static int vidioc_s_crop(struct file *file, void *fh, const struct v4l2_crop *crop) |
5c7ab634 VH |
1293 | { |
1294 | int ret = -EINVAL; | |
1295 | struct omap_vout_device *vout = fh; | |
1296 | struct omapvideo_info *ovid; | |
1297 | struct omap_overlay *ovl; | |
1298 | struct omap_video_timings *timing; | |
d629f03f | 1299 | struct omap_dss_device *dssdev; |
5c7ab634 VH |
1300 | |
1301 | if (vout->streaming) | |
1302 | return -EBUSY; | |
1303 | ||
1304 | mutex_lock(&vout->lock); | |
1305 | ovid = &vout->vid_info; | |
1306 | ovl = ovid->overlays[0]; | |
d629f03f AT |
1307 | /* get the display device attached to the overlay */ |
1308 | dssdev = ovl->get_device(ovl); | |
5c7ab634 | 1309 | |
d629f03f | 1310 | if (!dssdev) { |
5c7ab634 VH |
1311 | ret = -EINVAL; |
1312 | goto s_crop_err; | |
1313 | } | |
d629f03f AT |
1314 | |
1315 | timing = &dssdev->panel.timings; | |
5c7ab634 | 1316 | |
b366888a | 1317 | if (is_rotation_90_or_270(vout)) { |
5c7ab634 VH |
1318 | vout->fbuf.fmt.height = timing->x_res; |
1319 | vout->fbuf.fmt.width = timing->y_res; | |
1320 | } else { | |
1321 | vout->fbuf.fmt.height = timing->y_res; | |
1322 | vout->fbuf.fmt.width = timing->x_res; | |
1323 | } | |
1324 | ||
1325 | if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
1326 | ret = omap_vout_new_crop(&vout->pix, &vout->crop, &vout->win, | |
1327 | &vout->fbuf, &crop->c); | |
1328 | ||
1329 | s_crop_err: | |
1330 | mutex_unlock(&vout->lock); | |
1331 | return ret; | |
1332 | } | |
1333 | ||
1334 | static int vidioc_queryctrl(struct file *file, void *fh, | |
1335 | struct v4l2_queryctrl *ctrl) | |
1336 | { | |
1337 | int ret = 0; | |
1338 | ||
1339 | switch (ctrl->id) { | |
1340 | case V4L2_CID_ROTATE: | |
1341 | ret = v4l2_ctrl_query_fill(ctrl, 0, 270, 90, 0); | |
1342 | break; | |
1343 | case V4L2_CID_BG_COLOR: | |
1344 | ret = v4l2_ctrl_query_fill(ctrl, 0, 0xFFFFFF, 1, 0); | |
1345 | break; | |
1346 | case V4L2_CID_VFLIP: | |
1347 | ret = v4l2_ctrl_query_fill(ctrl, 0, 1, 1, 0); | |
1348 | break; | |
1349 | default: | |
1350 | ctrl->name[0] = '\0'; | |
1351 | ret = -EINVAL; | |
1352 | } | |
1353 | return ret; | |
1354 | } | |
1355 | ||
1356 | static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *ctrl) | |
1357 | { | |
1358 | int ret = 0; | |
1359 | struct omap_vout_device *vout = fh; | |
1360 | ||
1361 | switch (ctrl->id) { | |
1362 | case V4L2_CID_ROTATE: | |
1363 | ctrl->value = vout->control[0].value; | |
1364 | break; | |
1365 | case V4L2_CID_BG_COLOR: | |
1366 | { | |
1367 | struct omap_overlay_manager_info info; | |
1368 | struct omap_overlay *ovl; | |
1369 | ||
1370 | ovl = vout->vid_info.overlays[0]; | |
1371 | if (!ovl->manager || !ovl->manager->get_manager_info) { | |
1372 | ret = -EINVAL; | |
1373 | break; | |
1374 | } | |
1375 | ||
1376 | ovl->manager->get_manager_info(ovl->manager, &info); | |
1377 | ctrl->value = info.default_color; | |
1378 | break; | |
1379 | } | |
1380 | case V4L2_CID_VFLIP: | |
1381 | ctrl->value = vout->control[2].value; | |
1382 | break; | |
1383 | default: | |
1384 | ret = -EINVAL; | |
1385 | } | |
1386 | return ret; | |
1387 | } | |
1388 | ||
1389 | static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *a) | |
1390 | { | |
1391 | int ret = 0; | |
1392 | struct omap_vout_device *vout = fh; | |
1393 | ||
1394 | switch (a->id) { | |
1395 | case V4L2_CID_ROTATE: | |
1396 | { | |
445e258f | 1397 | struct omapvideo_info *ovid; |
5c7ab634 VH |
1398 | int rotation = a->value; |
1399 | ||
445e258f AT |
1400 | ovid = &vout->vid_info; |
1401 | ||
5c7ab634 | 1402 | mutex_lock(&vout->lock); |
445e258f AT |
1403 | if (rotation && ovid->rotation_type == VOUT_ROT_NONE) { |
1404 | mutex_unlock(&vout->lock); | |
1405 | ret = -ERANGE; | |
1406 | break; | |
1407 | } | |
5c7ab634 VH |
1408 | |
1409 | if (rotation && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) { | |
1410 | mutex_unlock(&vout->lock); | |
1411 | ret = -EINVAL; | |
1412 | break; | |
1413 | } | |
1414 | ||
1415 | if (v4l2_rot_to_dss_rot(rotation, &vout->rotation, | |
1416 | vout->mirror)) { | |
1417 | mutex_unlock(&vout->lock); | |
1418 | ret = -EINVAL; | |
1419 | break; | |
1420 | } | |
1421 | ||
1422 | vout->control[0].value = rotation; | |
1423 | mutex_unlock(&vout->lock); | |
1424 | break; | |
1425 | } | |
1426 | case V4L2_CID_BG_COLOR: | |
1427 | { | |
1428 | struct omap_overlay *ovl; | |
1429 | unsigned int color = a->value; | |
1430 | struct omap_overlay_manager_info info; | |
1431 | ||
1432 | ovl = vout->vid_info.overlays[0]; | |
1433 | ||
1434 | mutex_lock(&vout->lock); | |
1435 | if (!ovl->manager || !ovl->manager->get_manager_info) { | |
1436 | mutex_unlock(&vout->lock); | |
1437 | ret = -EINVAL; | |
1438 | break; | |
1439 | } | |
1440 | ||
1441 | ovl->manager->get_manager_info(ovl->manager, &info); | |
1442 | info.default_color = color; | |
1443 | if (ovl->manager->set_manager_info(ovl->manager, &info)) { | |
1444 | mutex_unlock(&vout->lock); | |
1445 | ret = -EINVAL; | |
1446 | break; | |
1447 | } | |
1448 | ||
1449 | vout->control[1].value = color; | |
1450 | mutex_unlock(&vout->lock); | |
1451 | break; | |
1452 | } | |
1453 | case V4L2_CID_VFLIP: | |
1454 | { | |
1455 | struct omap_overlay *ovl; | |
1456 | struct omapvideo_info *ovid; | |
1457 | unsigned int mirror = a->value; | |
1458 | ||
1459 | ovid = &vout->vid_info; | |
1460 | ovl = ovid->overlays[0]; | |
1461 | ||
1462 | mutex_lock(&vout->lock); | |
445e258f AT |
1463 | if (mirror && ovid->rotation_type == VOUT_ROT_NONE) { |
1464 | mutex_unlock(&vout->lock); | |
1465 | ret = -ERANGE; | |
1466 | break; | |
1467 | } | |
5c7ab634 VH |
1468 | |
1469 | if (mirror && vout->pix.pixelformat == V4L2_PIX_FMT_RGB24) { | |
1470 | mutex_unlock(&vout->lock); | |
1471 | ret = -EINVAL; | |
1472 | break; | |
1473 | } | |
1474 | vout->mirror = mirror; | |
1475 | vout->control[2].value = mirror; | |
1476 | mutex_unlock(&vout->lock); | |
1477 | break; | |
1478 | } | |
1479 | default: | |
1480 | ret = -EINVAL; | |
1481 | } | |
1482 | return ret; | |
1483 | } | |
1484 | ||
1485 | static int vidioc_reqbufs(struct file *file, void *fh, | |
1486 | struct v4l2_requestbuffers *req) | |
1487 | { | |
1488 | int ret = 0; | |
1489 | unsigned int i, num_buffers = 0; | |
1490 | struct omap_vout_device *vout = fh; | |
1491 | struct videobuf_queue *q = &vout->vbq; | |
5c7ab634 VH |
1492 | |
1493 | if ((req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || (req->count < 0)) | |
1494 | return -EINVAL; | |
1495 | /* if memory is not mmp or userptr | |
1496 | return error */ | |
1497 | if ((V4L2_MEMORY_MMAP != req->memory) && | |
1498 | (V4L2_MEMORY_USERPTR != req->memory)) | |
1499 | return -EINVAL; | |
1500 | ||
1501 | mutex_lock(&vout->lock); | |
1502 | /* Cannot be requested when streaming is on */ | |
1503 | if (vout->streaming) { | |
1504 | ret = -EBUSY; | |
1505 | goto reqbuf_err; | |
1506 | } | |
1507 | ||
1508 | /* If buffers are already allocated free them */ | |
1509 | if (q->bufs[0] && (V4L2_MEMORY_MMAP == q->bufs[0]->memory)) { | |
1510 | if (vout->mmap_count) { | |
1511 | ret = -EBUSY; | |
1512 | goto reqbuf_err; | |
1513 | } | |
1514 | num_buffers = (vout->vid == OMAP_VIDEO1) ? | |
1515 | video1_numbuffers : video2_numbuffers; | |
1516 | for (i = num_buffers; i < vout->buffer_allocated; i++) { | |
dd880dd4 | 1517 | omap_vout_free_buffer(vout->buf_virt_addr[i], |
5c7ab634 VH |
1518 | vout->buffer_size); |
1519 | vout->buf_virt_addr[i] = 0; | |
1520 | vout->buf_phy_addr[i] = 0; | |
1521 | } | |
1522 | vout->buffer_allocated = num_buffers; | |
1523 | videobuf_mmap_free(q); | |
1524 | } else if (q->bufs[0] && (V4L2_MEMORY_USERPTR == q->bufs[0]->memory)) { | |
1525 | if (vout->buffer_allocated) { | |
1526 | videobuf_mmap_free(q); | |
1527 | for (i = 0; i < vout->buffer_allocated; i++) { | |
1528 | kfree(q->bufs[i]); | |
1529 | q->bufs[i] = NULL; | |
1530 | } | |
1531 | vout->buffer_allocated = 0; | |
1532 | } | |
1533 | } | |
1534 | ||
1535 | /*store the memory type in data structure */ | |
1536 | vout->memory = req->memory; | |
1537 | ||
1538 | INIT_LIST_HEAD(&vout->dma_queue); | |
1539 | ||
1540 | /* call videobuf_reqbufs api */ | |
1541 | ret = videobuf_reqbufs(q, req); | |
1542 | if (ret < 0) | |
1543 | goto reqbuf_err; | |
1544 | ||
1545 | vout->buffer_allocated = req->count; | |
dd880dd4 | 1546 | |
5c7ab634 VH |
1547 | reqbuf_err: |
1548 | mutex_unlock(&vout->lock); | |
1549 | return ret; | |
1550 | } | |
1551 | ||
1552 | static int vidioc_querybuf(struct file *file, void *fh, | |
1553 | struct v4l2_buffer *b) | |
1554 | { | |
1555 | struct omap_vout_device *vout = fh; | |
1556 | ||
1557 | return videobuf_querybuf(&vout->vbq, b); | |
1558 | } | |
1559 | ||
1560 | static int vidioc_qbuf(struct file *file, void *fh, | |
1561 | struct v4l2_buffer *buffer) | |
1562 | { | |
1563 | struct omap_vout_device *vout = fh; | |
1564 | struct videobuf_queue *q = &vout->vbq; | |
1565 | ||
1566 | if ((V4L2_BUF_TYPE_VIDEO_OUTPUT != buffer->type) || | |
1567 | (buffer->index >= vout->buffer_allocated) || | |
1568 | (q->bufs[buffer->index]->memory != buffer->memory)) { | |
1569 | return -EINVAL; | |
1570 | } | |
1571 | if (V4L2_MEMORY_USERPTR == buffer->memory) { | |
1572 | if ((buffer->length < vout->pix.sizeimage) || | |
1573 | (0 == buffer->m.userptr)) { | |
1574 | return -EINVAL; | |
1575 | } | |
1576 | } | |
1577 | ||
b366888a | 1578 | if ((is_rotation_enabled(vout)) && |
5c7ab634 VH |
1579 | vout->vrfb_dma_tx.req_status == DMA_CHAN_NOT_ALLOTED) { |
1580 | v4l2_warn(&vout->vid_dev->v4l2_dev, | |
1581 | "DMA Channel not allocated for Rotation\n"); | |
1582 | return -EINVAL; | |
1583 | } | |
1584 | ||
1585 | return videobuf_qbuf(q, buffer); | |
1586 | } | |
1587 | ||
1588 | static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b) | |
1589 | { | |
1590 | struct omap_vout_device *vout = fh; | |
1591 | struct videobuf_queue *q = &vout->vbq; | |
1592 | ||
72915e85 AJ |
1593 | int ret; |
1594 | u32 addr; | |
1595 | unsigned long size; | |
1596 | struct videobuf_buffer *vb; | |
1597 | ||
1598 | vb = q->bufs[b->index]; | |
1599 | ||
5c7ab634 VH |
1600 | if (!vout->streaming) |
1601 | return -EINVAL; | |
1602 | ||
1603 | if (file->f_flags & O_NONBLOCK) | |
1604 | /* Call videobuf_dqbuf for non blocking mode */ | |
72915e85 | 1605 | ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 1); |
5c7ab634 VH |
1606 | else |
1607 | /* Call videobuf_dqbuf for blocking mode */ | |
72915e85 AJ |
1608 | ret = videobuf_dqbuf(q, (struct v4l2_buffer *)b, 0); |
1609 | ||
1610 | addr = (unsigned long) vout->buf_phy_addr[vb->i]; | |
1611 | size = (unsigned long) vb->size; | |
1612 | dma_unmap_single(vout->vid_dev->v4l2_dev.dev, addr, | |
1613 | size, DMA_TO_DEVICE); | |
1614 | return ret; | |
5c7ab634 VH |
1615 | } |
1616 | ||
1617 | static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i) | |
1618 | { | |
1619 | int ret = 0, j; | |
1620 | u32 addr = 0, mask = 0; | |
1621 | struct omap_vout_device *vout = fh; | |
1622 | struct videobuf_queue *q = &vout->vbq; | |
1623 | struct omapvideo_info *ovid = &vout->vid_info; | |
1624 | ||
1625 | mutex_lock(&vout->lock); | |
1626 | ||
1627 | if (vout->streaming) { | |
1628 | ret = -EBUSY; | |
1629 | goto streamon_err; | |
1630 | } | |
1631 | ||
1632 | ret = videobuf_streamon(q); | |
1633 | if (ret) | |
1634 | goto streamon_err; | |
1635 | ||
1636 | if (list_empty(&vout->dma_queue)) { | |
1637 | ret = -EIO; | |
1638 | goto streamon_err1; | |
1639 | } | |
1640 | ||
1641 | /* Get the next frame from the buffer queue */ | |
1642 | vout->next_frm = vout->cur_frm = list_entry(vout->dma_queue.next, | |
1643 | struct videobuf_buffer, queue); | |
1644 | /* Remove buffer from the buffer queue */ | |
1645 | list_del(&vout->cur_frm->queue); | |
1646 | /* Mark state of the current frame to active */ | |
1647 | vout->cur_frm->state = VIDEOBUF_ACTIVE; | |
1648 | /* Initialize field_id and started member */ | |
1649 | vout->field_id = 0; | |
1650 | ||
1651 | /* set flag here. Next QBUF will start DMA */ | |
1652 | vout->streaming = 1; | |
1653 | ||
1654 | vout->first_int = 1; | |
1655 | ||
1656 | if (omap_vout_calculate_offset(vout)) { | |
1657 | ret = -EINVAL; | |
1658 | goto streamon_err1; | |
1659 | } | |
1660 | addr = (unsigned long) vout->queued_buf_addr[vout->cur_frm->i] | |
1661 | + vout->cropped_offset; | |
1662 | ||
5251dd6c AJ |
1663 | mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD |
1664 | | DISPC_IRQ_VSYNC2; | |
5c7ab634 | 1665 | |
5c7ab634 VH |
1666 | /* First save the configuration in ovelray structure */ |
1667 | ret = omapvid_init(vout, addr); | |
15170025 | 1668 | if (ret) { |
5c7ab634 VH |
1669 | v4l2_err(&vout->vid_dev->v4l2_dev, |
1670 | "failed to set overlay info\n"); | |
15170025 FF |
1671 | goto streamon_err1; |
1672 | } | |
1673 | ||
1674 | omap_dispc_register_isr(omap_vout_isr, vout, mask); | |
1675 | ||
5c7ab634 VH |
1676 | /* Enable the pipeline and set the Go bit */ |
1677 | ret = omapvid_apply_changes(vout); | |
1678 | if (ret) | |
1679 | v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode\n"); | |
1680 | ||
aaa874a9 TV |
1681 | for (j = 0; j < ovid->num_overlays; j++) { |
1682 | struct omap_overlay *ovl = ovid->overlays[j]; | |
d629f03f | 1683 | struct omap_dss_device *dssdev = ovl->get_device(ovl); |
aaa874a9 | 1684 | |
d629f03f | 1685 | if (dssdev) { |
aaa874a9 TV |
1686 | ret = ovl->enable(ovl); |
1687 | if (ret) | |
1688 | goto streamon_err1; | |
1689 | } | |
1690 | } | |
1691 | ||
5c7ab634 VH |
1692 | ret = 0; |
1693 | ||
1694 | streamon_err1: | |
1695 | if (ret) | |
1696 | ret = videobuf_streamoff(q); | |
1697 | streamon_err: | |
1698 | mutex_unlock(&vout->lock); | |
1699 | return ret; | |
1700 | } | |
1701 | ||
1702 | static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i) | |
1703 | { | |
1704 | u32 mask = 0; | |
1705 | int ret = 0, j; | |
1706 | struct omap_vout_device *vout = fh; | |
1707 | struct omapvideo_info *ovid = &vout->vid_info; | |
1708 | ||
1709 | if (!vout->streaming) | |
1710 | return -EINVAL; | |
1711 | ||
1712 | vout->streaming = 0; | |
5251dd6c AJ |
1713 | mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD |
1714 | | DISPC_IRQ_VSYNC2; | |
5c7ab634 VH |
1715 | |
1716 | omap_dispc_unregister_isr(omap_vout_isr, vout, mask); | |
1717 | ||
1718 | for (j = 0; j < ovid->num_overlays; j++) { | |
1719 | struct omap_overlay *ovl = ovid->overlays[j]; | |
d629f03f | 1720 | struct omap_dss_device *dssdev = ovl->get_device(ovl); |
5c7ab634 | 1721 | |
d629f03f | 1722 | if (dssdev) |
aaa874a9 | 1723 | ovl->disable(ovl); |
5c7ab634 VH |
1724 | } |
1725 | ||
1726 | /* Turn of the pipeline */ | |
1727 | ret = omapvid_apply_changes(vout); | |
1728 | if (ret) | |
1729 | v4l2_err(&vout->vid_dev->v4l2_dev, "failed to change mode in" | |
1730 | " streamoff\n"); | |
1731 | ||
1732 | INIT_LIST_HEAD(&vout->dma_queue); | |
1733 | ret = videobuf_streamoff(&vout->vbq); | |
1734 | ||
1735 | return ret; | |
1736 | } | |
1737 | ||
1738 | static int vidioc_s_fbuf(struct file *file, void *fh, | |
e6eb28c2 | 1739 | const struct v4l2_framebuffer *a) |
5c7ab634 VH |
1740 | { |
1741 | int enable = 0; | |
1742 | struct omap_overlay *ovl; | |
1743 | struct omapvideo_info *ovid; | |
1744 | struct omap_vout_device *vout = fh; | |
1745 | struct omap_overlay_manager_info info; | |
1746 | enum omap_dss_trans_key_type key_type = OMAP_DSS_COLOR_KEY_GFX_DST; | |
1747 | ||
1748 | ovid = &vout->vid_info; | |
1749 | ovl = ovid->overlays[0]; | |
1750 | ||
1751 | /* OMAP DSS doesn't support Source and Destination color | |
1752 | key together */ | |
1753 | if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY) && | |
1754 | (a->flags & V4L2_FBUF_FLAG_CHROMAKEY)) | |
1755 | return -EINVAL; | |
1756 | /* OMAP DSS Doesn't support the Destination color key | |
1757 | and alpha blending together */ | |
1758 | if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY) && | |
1759 | (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA)) | |
1760 | return -EINVAL; | |
1761 | ||
1762 | if ((a->flags & V4L2_FBUF_FLAG_SRC_CHROMAKEY)) { | |
1763 | vout->fbuf.flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY; | |
1764 | key_type = OMAP_DSS_COLOR_KEY_VID_SRC; | |
1765 | } else | |
1766 | vout->fbuf.flags &= ~V4L2_FBUF_FLAG_SRC_CHROMAKEY; | |
1767 | ||
1768 | if ((a->flags & V4L2_FBUF_FLAG_CHROMAKEY)) { | |
1769 | vout->fbuf.flags |= V4L2_FBUF_FLAG_CHROMAKEY; | |
1770 | key_type = OMAP_DSS_COLOR_KEY_GFX_DST; | |
1771 | } else | |
1772 | vout->fbuf.flags &= ~V4L2_FBUF_FLAG_CHROMAKEY; | |
1773 | ||
1774 | if (a->flags & (V4L2_FBUF_FLAG_CHROMAKEY | | |
1775 | V4L2_FBUF_FLAG_SRC_CHROMAKEY)) | |
1776 | enable = 1; | |
1777 | else | |
1778 | enable = 0; | |
1779 | if (ovl->manager && ovl->manager->get_manager_info && | |
1780 | ovl->manager->set_manager_info) { | |
1781 | ||
1782 | ovl->manager->get_manager_info(ovl->manager, &info); | |
1783 | info.trans_enabled = enable; | |
1784 | info.trans_key_type = key_type; | |
1785 | info.trans_key = vout->win.chromakey; | |
1786 | ||
1787 | if (ovl->manager->set_manager_info(ovl->manager, &info)) | |
1788 | return -EINVAL; | |
1789 | } | |
1790 | if (a->flags & V4L2_FBUF_FLAG_LOCAL_ALPHA) { | |
1791 | vout->fbuf.flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA; | |
1792 | enable = 1; | |
1793 | } else { | |
1794 | vout->fbuf.flags &= ~V4L2_FBUF_FLAG_LOCAL_ALPHA; | |
1795 | enable = 0; | |
1796 | } | |
1797 | if (ovl->manager && ovl->manager->get_manager_info && | |
1798 | ovl->manager->set_manager_info) { | |
1799 | ovl->manager->get_manager_info(ovl->manager, &info); | |
11354dd5 AT |
1800 | /* enable this only if there is no zorder cap */ |
1801 | if ((ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) == 0) | |
1802 | info.partial_alpha_enabled = enable; | |
5c7ab634 VH |
1803 | if (ovl->manager->set_manager_info(ovl->manager, &info)) |
1804 | return -EINVAL; | |
1805 | } | |
1806 | ||
1807 | return 0; | |
1808 | } | |
1809 | ||
1810 | static int vidioc_g_fbuf(struct file *file, void *fh, | |
1811 | struct v4l2_framebuffer *a) | |
1812 | { | |
1813 | struct omap_overlay *ovl; | |
1814 | struct omapvideo_info *ovid; | |
1815 | struct omap_vout_device *vout = fh; | |
1816 | struct omap_overlay_manager_info info; | |
1817 | ||
1818 | ovid = &vout->vid_info; | |
1819 | ovl = ovid->overlays[0]; | |
1820 | ||
047a01fd HV |
1821 | /* The video overlay must stay within the framebuffer and can't be |
1822 | positioned independently. */ | |
1823 | a->flags = V4L2_FBUF_FLAG_OVERLAY; | |
5c7ab634 VH |
1824 | a->capability = V4L2_FBUF_CAP_LOCAL_ALPHA | V4L2_FBUF_CAP_CHROMAKEY |
1825 | | V4L2_FBUF_CAP_SRC_CHROMAKEY; | |
1826 | ||
1827 | if (ovl->manager && ovl->manager->get_manager_info) { | |
1828 | ovl->manager->get_manager_info(ovl->manager, &info); | |
1829 | if (info.trans_key_type == OMAP_DSS_COLOR_KEY_VID_SRC) | |
1830 | a->flags |= V4L2_FBUF_FLAG_SRC_CHROMAKEY; | |
1831 | if (info.trans_key_type == OMAP_DSS_COLOR_KEY_GFX_DST) | |
1832 | a->flags |= V4L2_FBUF_FLAG_CHROMAKEY; | |
1833 | } | |
1834 | if (ovl->manager && ovl->manager->get_manager_info) { | |
1835 | ovl->manager->get_manager_info(ovl->manager, &info); | |
11354dd5 | 1836 | if (info.partial_alpha_enabled) |
5c7ab634 VH |
1837 | a->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA; |
1838 | } | |
1839 | ||
1840 | return 0; | |
1841 | } | |
1842 | ||
1843 | static const struct v4l2_ioctl_ops vout_ioctl_ops = { | |
1844 | .vidioc_querycap = vidioc_querycap, | |
1845 | .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out, | |
1846 | .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out, | |
1847 | .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out, | |
1848 | .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out, | |
1849 | .vidioc_queryctrl = vidioc_queryctrl, | |
1850 | .vidioc_g_ctrl = vidioc_g_ctrl, | |
1851 | .vidioc_s_fbuf = vidioc_s_fbuf, | |
1852 | .vidioc_g_fbuf = vidioc_g_fbuf, | |
1853 | .vidioc_s_ctrl = vidioc_s_ctrl, | |
7b2607c9 LP |
1854 | .vidioc_try_fmt_vid_out_overlay = vidioc_try_fmt_vid_overlay, |
1855 | .vidioc_s_fmt_vid_out_overlay = vidioc_s_fmt_vid_overlay, | |
1856 | .vidioc_g_fmt_vid_out_overlay = vidioc_g_fmt_vid_overlay, | |
5c7ab634 VH |
1857 | .vidioc_cropcap = vidioc_cropcap, |
1858 | .vidioc_g_crop = vidioc_g_crop, | |
1859 | .vidioc_s_crop = vidioc_s_crop, | |
1860 | .vidioc_reqbufs = vidioc_reqbufs, | |
1861 | .vidioc_querybuf = vidioc_querybuf, | |
1862 | .vidioc_qbuf = vidioc_qbuf, | |
1863 | .vidioc_dqbuf = vidioc_dqbuf, | |
1864 | .vidioc_streamon = vidioc_streamon, | |
1865 | .vidioc_streamoff = vidioc_streamoff, | |
1866 | }; | |
1867 | ||
1868 | static const struct v4l2_file_operations omap_vout_fops = { | |
1869 | .owner = THIS_MODULE, | |
94f3f48f | 1870 | .poll = omap_vout_poll, |
5c7ab634 VH |
1871 | .unlocked_ioctl = video_ioctl2, |
1872 | .mmap = omap_vout_mmap, | |
1873 | .open = omap_vout_open, | |
1874 | .release = omap_vout_release, | |
1875 | }; | |
1876 | ||
1877 | /* Init functions used during driver initialization */ | |
1878 | /* Initial setup of video_data */ | |
1879 | static int __init omap_vout_setup_video_data(struct omap_vout_device *vout) | |
1880 | { | |
1881 | struct video_device *vfd; | |
1882 | struct v4l2_pix_format *pix; | |
1883 | struct v4l2_control *control; | |
d629f03f AT |
1884 | struct omap_overlay *ovl = vout->vid_info.overlays[0]; |
1885 | struct omap_dss_device *display = ovl->get_device(ovl); | |
5c7ab634 VH |
1886 | |
1887 | /* set the default pix */ | |
1888 | pix = &vout->pix; | |
1889 | ||
1890 | /* Set the default picture of QVGA */ | |
1891 | pix->width = QQVGA_WIDTH; | |
1892 | pix->height = QQVGA_HEIGHT; | |
1893 | ||
1894 | /* Default pixel format is RGB 5-6-5 */ | |
1895 | pix->pixelformat = V4L2_PIX_FMT_RGB565; | |
1896 | pix->field = V4L2_FIELD_ANY; | |
1897 | pix->bytesperline = pix->width * 2; | |
1898 | pix->sizeimage = pix->bytesperline * pix->height; | |
1899 | pix->priv = 0; | |
1900 | pix->colorspace = V4L2_COLORSPACE_JPEG; | |
1901 | ||
1902 | vout->bpp = RGB565_BPP; | |
1903 | vout->fbuf.fmt.width = display->panel.timings.x_res; | |
1904 | vout->fbuf.fmt.height = display->panel.timings.y_res; | |
1905 | ||
1906 | /* Set the data structures for the overlay parameters*/ | |
1907 | vout->win.global_alpha = 255; | |
1908 | vout->fbuf.flags = 0; | |
1909 | vout->fbuf.capability = V4L2_FBUF_CAP_LOCAL_ALPHA | | |
1910 | V4L2_FBUF_CAP_SRC_CHROMAKEY | V4L2_FBUF_CAP_CHROMAKEY; | |
1911 | vout->win.chromakey = 0; | |
1912 | ||
1913 | omap_vout_new_format(pix, &vout->fbuf, &vout->crop, &vout->win); | |
1914 | ||
1915 | /*Initialize the control variables for | |
1916 | rotation, flipping and background color. */ | |
1917 | control = vout->control; | |
1918 | control[0].id = V4L2_CID_ROTATE; | |
1919 | control[0].value = 0; | |
1920 | vout->rotation = 0; | |
1921 | vout->mirror = 0; | |
1922 | vout->control[2].id = V4L2_CID_HFLIP; | |
1923 | vout->control[2].value = 0; | |
445e258f AT |
1924 | if (vout->vid_info.rotation_type == VOUT_ROT_VRFB) |
1925 | vout->vrfb_bpp = 2; | |
5c7ab634 VH |
1926 | |
1927 | control[1].id = V4L2_CID_BG_COLOR; | |
1928 | control[1].value = 0; | |
1929 | ||
1930 | /* initialize the video_device struct */ | |
1931 | vfd = vout->vfd = video_device_alloc(); | |
1932 | ||
1933 | if (!vfd) { | |
1934 | printk(KERN_ERR VOUT_NAME ": could not allocate" | |
1935 | " video device struct\n"); | |
1936 | return -ENOMEM; | |
1937 | } | |
1938 | vfd->release = video_device_release; | |
1939 | vfd->ioctl_ops = &vout_ioctl_ops; | |
1940 | ||
1941 | strlcpy(vfd->name, VOUT_NAME, sizeof(vfd->name)); | |
1942 | ||
5c7ab634 VH |
1943 | vfd->fops = &omap_vout_fops; |
1944 | vfd->v4l2_dev = &vout->vid_dev->v4l2_dev; | |
954f340f | 1945 | vfd->vfl_dir = VFL_DIR_TX; |
5c7ab634 VH |
1946 | mutex_init(&vout->lock); |
1947 | ||
1948 | vfd->minor = -1; | |
1949 | return 0; | |
1950 | ||
1951 | } | |
1952 | ||
1953 | /* Setup video buffers */ | |
1954 | static int __init omap_vout_setup_video_bufs(struct platform_device *pdev, | |
1955 | int vid_num) | |
1956 | { | |
1957 | u32 numbuffers; | |
445e258f AT |
1958 | int ret = 0, i; |
1959 | struct omapvideo_info *ovid; | |
5c7ab634 | 1960 | struct omap_vout_device *vout; |
5c7ab634 VH |
1961 | struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); |
1962 | struct omap2video_device *vid_dev = | |
1963 | container_of(v4l2_dev, struct omap2video_device, v4l2_dev); | |
1964 | ||
1965 | vout = vid_dev->vouts[vid_num]; | |
445e258f | 1966 | ovid = &vout->vid_info; |
5c7ab634 VH |
1967 | |
1968 | numbuffers = (vid_num == 0) ? video1_numbuffers : video2_numbuffers; | |
1969 | vout->buffer_size = (vid_num == 0) ? video1_bufsize : video2_bufsize; | |
1970 | dev_info(&pdev->dev, "Buffer Size = %d\n", vout->buffer_size); | |
1971 | ||
1972 | for (i = 0; i < numbuffers; i++) { | |
1973 | vout->buf_virt_addr[i] = | |
1974 | omap_vout_alloc_buffer(vout->buffer_size, | |
1975 | (u32 *) &vout->buf_phy_addr[i]); | |
1976 | if (!vout->buf_virt_addr[i]) { | |
1977 | numbuffers = i; | |
1978 | ret = -ENOMEM; | |
1979 | goto free_buffers; | |
1980 | } | |
1981 | } | |
1982 | ||
5c7ab634 VH |
1983 | vout->cropped_offset = 0; |
1984 | ||
445e258f AT |
1985 | if (ovid->rotation_type == VOUT_ROT_VRFB) { |
1986 | int static_vrfb_allocation = (vid_num == 0) ? | |
1987 | vid1_static_vrfb_alloc : vid2_static_vrfb_alloc; | |
1988 | ret = omap_vout_setup_vrfb_bufs(pdev, vid_num, | |
1989 | static_vrfb_allocation); | |
5c7ab634 | 1990 | } |
5c7ab634 | 1991 | |
445e258f | 1992 | return ret; |
5c7ab634 VH |
1993 | |
1994 | free_buffers: | |
1995 | for (i = 0; i < numbuffers; i++) { | |
1996 | omap_vout_free_buffer(vout->buf_virt_addr[i], | |
1997 | vout->buffer_size); | |
1998 | vout->buf_virt_addr[i] = 0; | |
1999 | vout->buf_phy_addr[i] = 0; | |
2000 | } | |
2001 | return ret; | |
2002 | ||
2003 | } | |
2004 | ||
2005 | /* Create video out devices */ | |
2006 | static int __init omap_vout_create_video_devices(struct platform_device *pdev) | |
2007 | { | |
2008 | int ret = 0, k; | |
2009 | struct omap_vout_device *vout; | |
2010 | struct video_device *vfd = NULL; | |
2011 | struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); | |
2012 | struct omap2video_device *vid_dev = container_of(v4l2_dev, | |
2013 | struct omap2video_device, v4l2_dev); | |
2014 | ||
2015 | for (k = 0; k < pdev->num_resources; k++) { | |
2016 | ||
2ef17c9f | 2017 | vout = kzalloc(sizeof(struct omap_vout_device), GFP_KERNEL); |
5c7ab634 VH |
2018 | if (!vout) { |
2019 | dev_err(&pdev->dev, ": could not allocate memory\n"); | |
2020 | return -ENOMEM; | |
2021 | } | |
5c7ab634 VH |
2022 | |
2023 | vout->vid = k; | |
2024 | vid_dev->vouts[k] = vout; | |
2025 | vout->vid_dev = vid_dev; | |
2026 | /* Select video2 if only 1 overlay is controlled by V4L2 */ | |
2027 | if (pdev->num_resources == 1) | |
2028 | vout->vid_info.overlays[0] = vid_dev->overlays[k + 2]; | |
2029 | else | |
2030 | /* Else select video1 and video2 one by one. */ | |
2031 | vout->vid_info.overlays[0] = vid_dev->overlays[k + 1]; | |
2032 | vout->vid_info.num_overlays = 1; | |
2033 | vout->vid_info.id = k + 1; | |
2034 | ||
445e258f | 2035 | /* Set VRFB as rotation_type for omap2 and omap3 */ |
950e2fb4 | 2036 | if (omap_vout_dss_omap24xx() || omap_vout_dss_omap34xx()) |
445e258f AT |
2037 | vout->vid_info.rotation_type = VOUT_ROT_VRFB; |
2038 | ||
5c7ab634 VH |
2039 | /* Setup the default configuration for the video devices |
2040 | */ | |
2041 | if (omap_vout_setup_video_data(vout) != 0) { | |
2042 | ret = -ENOMEM; | |
2043 | goto error; | |
2044 | } | |
2045 | ||
2046 | /* Allocate default number of buffers for the video streaming | |
2047 | * and reserve the VRFB space for rotation | |
2048 | */ | |
2049 | if (omap_vout_setup_video_bufs(pdev, k) != 0) { | |
2050 | ret = -ENOMEM; | |
2051 | goto error1; | |
2052 | } | |
2053 | ||
2054 | /* Register the Video device with V4L2 | |
2055 | */ | |
2056 | vfd = vout->vfd; | |
8f3a307b | 2057 | if (video_register_device(vfd, VFL_TYPE_GRABBER, -1) < 0) { |
5c7ab634 VH |
2058 | dev_err(&pdev->dev, ": Could not register " |
2059 | "Video for Linux device\n"); | |
2060 | vfd->minor = -1; | |
2061 | ret = -ENODEV; | |
2062 | goto error2; | |
2063 | } | |
2064 | video_set_drvdata(vfd, vout); | |
2065 | ||
32d640de AT |
2066 | dev_info(&pdev->dev, ": registered and initialized" |
2067 | " video device %d\n", vfd->minor); | |
2068 | if (k == (pdev->num_resources - 1)) | |
2069 | return 0; | |
5c7ab634 | 2070 | |
32d640de | 2071 | continue; |
5c7ab634 | 2072 | error2: |
445e258f AT |
2073 | if (vout->vid_info.rotation_type == VOUT_ROT_VRFB) |
2074 | omap_vout_release_vrfb(vout); | |
5c7ab634 VH |
2075 | omap_vout_free_buffers(vout); |
2076 | error1: | |
2077 | video_device_release(vfd); | |
2078 | error: | |
2079 | kfree(vout); | |
2080 | return ret; | |
5c7ab634 VH |
2081 | } |
2082 | ||
2083 | return -ENODEV; | |
2084 | } | |
2085 | /* Driver functions */ | |
2086 | static void omap_vout_cleanup_device(struct omap_vout_device *vout) | |
2087 | { | |
2088 | struct video_device *vfd; | |
445e258f | 2089 | struct omapvideo_info *ovid; |
5c7ab634 VH |
2090 | |
2091 | if (!vout) | |
2092 | return; | |
2093 | ||
2094 | vfd = vout->vfd; | |
445e258f | 2095 | ovid = &vout->vid_info; |
5c7ab634 VH |
2096 | if (vfd) { |
2097 | if (!video_is_registered(vfd)) { | |
2098 | /* | |
2099 | * The device was never registered, so release the | |
2100 | * video_device struct directly. | |
2101 | */ | |
2102 | video_device_release(vfd); | |
2103 | } else { | |
2104 | /* | |
2105 | * The unregister function will release the video_device | |
2106 | * struct as well as unregistering it. | |
2107 | */ | |
2108 | video_unregister_device(vfd); | |
2109 | } | |
2110 | } | |
445e258f AT |
2111 | if (ovid->rotation_type == VOUT_ROT_VRFB) { |
2112 | omap_vout_release_vrfb(vout); | |
2113 | /* Free the VRFB buffer if allocated | |
2114 | * init time | |
2115 | */ | |
2116 | if (vout->vrfb_static_allocation) | |
2117 | omap_vout_free_vrfb_buffers(vout); | |
2118 | } | |
5c7ab634 | 2119 | omap_vout_free_buffers(vout); |
5c7ab634 VH |
2120 | |
2121 | kfree(vout); | |
2122 | } | |
2123 | ||
2124 | static int omap_vout_remove(struct platform_device *pdev) | |
2125 | { | |
2126 | int k; | |
2127 | struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); | |
2128 | struct omap2video_device *vid_dev = container_of(v4l2_dev, struct | |
2129 | omap2video_device, v4l2_dev); | |
2130 | ||
2131 | v4l2_device_unregister(v4l2_dev); | |
2132 | for (k = 0; k < pdev->num_resources; k++) | |
2133 | omap_vout_cleanup_device(vid_dev->vouts[k]); | |
2134 | ||
2135 | for (k = 0; k < vid_dev->num_displays; k++) { | |
2136 | if (vid_dev->displays[k]->state != OMAP_DSS_DISPLAY_DISABLED) | |
5ba9bb0e | 2137 | vid_dev->displays[k]->driver->disable(vid_dev->displays[k]); |
5c7ab634 VH |
2138 | |
2139 | omap_dss_put_device(vid_dev->displays[k]); | |
2140 | } | |
2141 | kfree(vid_dev); | |
2142 | return 0; | |
2143 | } | |
2144 | ||
2145 | static int __init omap_vout_probe(struct platform_device *pdev) | |
2146 | { | |
2147 | int ret = 0, i; | |
2148 | struct omap_overlay *ovl; | |
2149 | struct omap_dss_device *dssdev = NULL; | |
2150 | struct omap_dss_device *def_display; | |
2151 | struct omap2video_device *vid_dev = NULL; | |
2152 | ||
591a0ac7 TV |
2153 | if (omapdss_is_initialized() == false) |
2154 | return -EPROBE_DEFER; | |
2155 | ||
a9ee9f08 TV |
2156 | ret = omapdss_compat_init(); |
2157 | if (ret) { | |
2158 | dev_err(&pdev->dev, "failed to init dss\n"); | |
2159 | return ret; | |
2160 | } | |
2161 | ||
5c7ab634 VH |
2162 | if (pdev->num_resources == 0) { |
2163 | dev_err(&pdev->dev, "probed for an unknown device\n"); | |
a9ee9f08 TV |
2164 | ret = -ENODEV; |
2165 | goto err_dss_init; | |
5c7ab634 VH |
2166 | } |
2167 | ||
2168 | vid_dev = kzalloc(sizeof(struct omap2video_device), GFP_KERNEL); | |
a9ee9f08 TV |
2169 | if (vid_dev == NULL) { |
2170 | ret = -ENOMEM; | |
2171 | goto err_dss_init; | |
2172 | } | |
5c7ab634 VH |
2173 | |
2174 | vid_dev->num_displays = 0; | |
2175 | for_each_dss_dev(dssdev) { | |
2176 | omap_dss_get_device(dssdev); | |
71c7a972 TV |
2177 | |
2178 | if (!dssdev->driver) { | |
2179 | dev_warn(&pdev->dev, "no driver for display: %s\n", | |
2180 | dssdev->name); | |
2181 | omap_dss_put_device(dssdev); | |
2182 | continue; | |
2183 | } | |
2184 | ||
5c7ab634 VH |
2185 | vid_dev->displays[vid_dev->num_displays++] = dssdev; |
2186 | } | |
2187 | ||
2188 | if (vid_dev->num_displays == 0) { | |
2189 | dev_err(&pdev->dev, "no displays\n"); | |
2190 | ret = -EINVAL; | |
2191 | goto probe_err0; | |
2192 | } | |
2193 | ||
2194 | vid_dev->num_overlays = omap_dss_get_num_overlays(); | |
2195 | for (i = 0; i < vid_dev->num_overlays; i++) | |
2196 | vid_dev->overlays[i] = omap_dss_get_overlay(i); | |
2197 | ||
2198 | vid_dev->num_managers = omap_dss_get_num_overlay_managers(); | |
2199 | for (i = 0; i < vid_dev->num_managers; i++) | |
2200 | vid_dev->managers[i] = omap_dss_get_overlay_manager(i); | |
2201 | ||
2202 | /* Get the Video1 overlay and video2 overlay. | |
2203 | * Setup the Display attached to that overlays | |
2204 | */ | |
2205 | for (i = 1; i < vid_dev->num_overlays; i++) { | |
2206 | ovl = omap_dss_get_overlay(i); | |
d629f03f AT |
2207 | dssdev = ovl->get_device(ovl); |
2208 | ||
2209 | if (dssdev) { | |
2210 | def_display = dssdev; | |
5c7ab634 VH |
2211 | } else { |
2212 | dev_warn(&pdev->dev, "cannot find display\n"); | |
2213 | def_display = NULL; | |
2214 | } | |
2215 | if (def_display) { | |
5ba9bb0e VH |
2216 | struct omap_dss_driver *dssdrv = def_display->driver; |
2217 | ||
2218 | ret = dssdrv->enable(def_display); | |
5c7ab634 VH |
2219 | if (ret) { |
2220 | /* Here we are not considering a error | |
2221 | * as display may be enabled by frame | |
2222 | * buffer driver | |
2223 | */ | |
2224 | dev_warn(&pdev->dev, | |
2225 | "'%s' Display already enabled\n", | |
2226 | def_display->name); | |
2227 | } | |
5c7ab634 VH |
2228 | } |
2229 | } | |
2230 | ||
2231 | if (v4l2_device_register(&pdev->dev, &vid_dev->v4l2_dev) < 0) { | |
2232 | dev_err(&pdev->dev, "v4l2_device_register failed\n"); | |
2233 | ret = -ENODEV; | |
2234 | goto probe_err1; | |
2235 | } | |
2236 | ||
2237 | ret = omap_vout_create_video_devices(pdev); | |
2238 | if (ret) | |
2239 | goto probe_err2; | |
2240 | ||
2241 | for (i = 0; i < vid_dev->num_displays; i++) { | |
2242 | struct omap_dss_device *display = vid_dev->displays[i]; | |
2243 | ||
5ba9bb0e VH |
2244 | if (display->driver->update) |
2245 | display->driver->update(display, 0, 0, | |
5c7ab634 VH |
2246 | display->panel.timings.x_res, |
2247 | display->panel.timings.y_res); | |
2248 | } | |
2249 | return 0; | |
2250 | ||
2251 | probe_err2: | |
2252 | v4l2_device_unregister(&vid_dev->v4l2_dev); | |
2253 | probe_err1: | |
2254 | for (i = 1; i < vid_dev->num_overlays; i++) { | |
2255 | def_display = NULL; | |
2256 | ovl = omap_dss_get_overlay(i); | |
d629f03f AT |
2257 | dssdev = ovl->get_device(ovl); |
2258 | ||
2259 | if (dssdev) | |
2260 | def_display = dssdev; | |
5c7ab634 | 2261 | |
5ba9bb0e VH |
2262 | if (def_display && def_display->driver) |
2263 | def_display->driver->disable(def_display); | |
5c7ab634 VH |
2264 | } |
2265 | probe_err0: | |
2266 | kfree(vid_dev); | |
a9ee9f08 TV |
2267 | err_dss_init: |
2268 | omapdss_compat_uninit(); | |
5c7ab634 VH |
2269 | return ret; |
2270 | } | |
2271 | ||
2272 | static struct platform_driver omap_vout_driver = { | |
2273 | .driver = { | |
2274 | .name = VOUT_NAME, | |
2275 | }, | |
5c7ab634 VH |
2276 | .remove = omap_vout_remove, |
2277 | }; | |
2278 | ||
2279 | static int __init omap_vout_init(void) | |
2280 | { | |
93596ef7 | 2281 | if (platform_driver_probe(&omap_vout_driver, omap_vout_probe) != 0) { |
5c7ab634 VH |
2282 | printk(KERN_ERR VOUT_NAME ":Could not register Video driver\n"); |
2283 | return -EINVAL; | |
2284 | } | |
2285 | return 0; | |
2286 | } | |
2287 | ||
2288 | static void omap_vout_cleanup(void) | |
2289 | { | |
2290 | platform_driver_unregister(&omap_vout_driver); | |
2291 | } | |
2292 | ||
2293 | late_initcall(omap_vout_init); | |
2294 | module_exit(omap_vout_cleanup); |