Commit | Line | Data |
---|---|---|
7da8a6cb MK |
1 | /* |
2 | * Copyright (C) 2008-2009 Texas Instruments Inc | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
17 | * | |
18 | * Driver name : VPFE Capture driver | |
19 | * VPFE Capture driver allows applications to capture and stream video | |
20 | * frames on DaVinci SoCs (DM6446, DM355 etc) from a YUV source such as | |
21 | * TVP5146 or Raw Bayer RGB image data from an image sensor | |
22 | * such as Microns' MT9T001, MT9T031 etc. | |
23 | * | |
24 | * These SoCs have, in common, a Video Processing Subsystem (VPSS) that | |
25 | * consists of a Video Processing Front End (VPFE) for capturing | |
26 | * video/raw image data and Video Processing Back End (VPBE) for displaying | |
27 | * YUV data through an in-built analog encoder or Digital LCD port. This | |
28 | * driver is for capture through VPFE. A typical EVM using these SoCs have | |
29 | * following high level configuration. | |
30 | * | |
31 | * | |
32 | * decoder(TVP5146/ YUV/ | |
33 | * MT9T001) --> Raw Bayer RGB ---> MUX -> VPFE (CCDC/ISIF) | |
34 | * data input | | | |
35 | * V | | |
36 | * SDRAM | | |
37 | * V | |
38 | * Image Processor | |
39 | * | | |
40 | * V | |
41 | * SDRAM | |
42 | * The data flow happens from a decoder connected to the VPFE over a | |
43 | * YUV embedded (BT.656/BT.1120) or separate sync or raw bayer rgb interface | |
44 | * and to the input of VPFE through an optional MUX (if more inputs are | |
45 | * to be interfaced on the EVM). The input data is first passed through | |
46 | * CCDC (CCD Controller, a.k.a Image Sensor Interface, ISIF). The CCDC | |
47 | * does very little or no processing on YUV data and does pre-process Raw | |
48 | * Bayer RGB data through modules such as Defect Pixel Correction (DFC) | |
49 | * Color Space Conversion (CSC), data gain/offset etc. After this, data | |
50 | * can be written to SDRAM or can be connected to the image processing | |
51 | * block such as IPIPE (on DM355 only). | |
52 | * | |
53 | * Features supported | |
54 | * - MMAP IO | |
55 | * - Capture using TVP5146 over BT.656 | |
56 | * - support for interfacing decoders using sub device model | |
57 | * - Work with DM355 or DM6446 CCDC to do Raw Bayer RGB/YUV | |
58 | * data capture to SDRAM. | |
59 | * TODO list | |
60 | * - Support multiple REQBUF after open | |
61 | * - Support for de-allocating buffers through REQBUF | |
62 | * - Support for Raw Bayer RGB capture | |
63 | * - Support for chaining Image Processor | |
64 | * - Support for static allocation of buffers | |
65 | * - Support for USERPTR IO | |
66 | * - Support for STREAMON before QBUF | |
67 | * - Support for control ioctls | |
68 | */ | |
69 | #include <linux/module.h> | |
70 | #include <linux/init.h> | |
71 | #include <linux/platform_device.h> | |
72 | #include <linux/interrupt.h> | |
73 | #include <linux/version.h> | |
74 | #include <media/v4l2-common.h> | |
75 | #include <linux/io.h> | |
76 | #include <media/davinci/vpfe_capture.h> | |
77 | #include "ccdc_hw_device.h" | |
78 | ||
79 | static int debug; | |
80 | static u32 numbuffers = 3; | |
81 | static u32 bufsize = (720 * 576 * 2); | |
82 | ||
83 | module_param(numbuffers, uint, S_IRUGO); | |
84 | module_param(bufsize, uint, S_IRUGO); | |
85 | module_param(debug, int, 0644); | |
86 | ||
87 | MODULE_PARM_DESC(numbuffers, "buffer count (default:3)"); | |
88 | MODULE_PARM_DESC(bufsize, "buffer size in bytes (default:720 x 576 x 2)"); | |
89 | MODULE_PARM_DESC(debug, "Debug level 0-1"); | |
90 | ||
91 | MODULE_DESCRIPTION("VPFE Video for Linux Capture Driver"); | |
92 | MODULE_LICENSE("GPL"); | |
93 | MODULE_AUTHOR("Texas Instruments"); | |
94 | ||
95 | /* standard information */ | |
96 | struct vpfe_standard { | |
97 | v4l2_std_id std_id; | |
98 | unsigned int width; | |
99 | unsigned int height; | |
100 | struct v4l2_fract pixelaspect; | |
101 | /* 0 - progressive, 1 - interlaced */ | |
102 | int frame_format; | |
103 | }; | |
104 | ||
105 | /* ccdc configuration */ | |
106 | struct ccdc_config { | |
107 | /* This make sure vpfe is probed and ready to go */ | |
108 | int vpfe_probed; | |
109 | /* name of ccdc device */ | |
110 | char name[32]; | |
111 | /* for storing mem maps for CCDC */ | |
112 | int ccdc_addr_size; | |
113 | void *__iomem ccdc_addr; | |
114 | }; | |
115 | ||
116 | /* data structures */ | |
117 | static struct vpfe_config_params config_params = { | |
118 | .min_numbuffers = 3, | |
119 | .numbuffers = 3, | |
120 | .min_bufsize = 720 * 480 * 2, | |
121 | .device_bufsize = 720 * 576 * 2, | |
122 | }; | |
123 | ||
124 | /* ccdc device registered */ | |
125 | static struct ccdc_hw_device *ccdc_dev; | |
126 | /* lock for accessing ccdc information */ | |
127 | static DEFINE_MUTEX(ccdc_lock); | |
128 | /* ccdc configuration */ | |
129 | static struct ccdc_config *ccdc_cfg; | |
130 | ||
131 | const struct vpfe_standard vpfe_standards[] = { | |
132 | {V4L2_STD_525_60, 720, 480, {11, 10}, 1}, | |
133 | {V4L2_STD_625_50, 720, 576, {54, 59}, 1}, | |
134 | }; | |
135 | ||
136 | /* Used when raw Bayer image from ccdc is directly captured to SDRAM */ | |
137 | static const struct vpfe_pixel_format vpfe_pix_fmts[] = { | |
138 | { | |
139 | .fmtdesc = { | |
140 | .index = 0, | |
141 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
142 | .description = "Bayer GrRBGb 8bit A-Law compr.", | |
143 | .pixelformat = V4L2_PIX_FMT_SBGGR8, | |
144 | }, | |
145 | .bpp = 1, | |
146 | }, | |
147 | { | |
148 | .fmtdesc = { | |
149 | .index = 1, | |
150 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
151 | .description = "Bayer GrRBGb - 16bit", | |
152 | .pixelformat = V4L2_PIX_FMT_SBGGR16, | |
153 | }, | |
154 | .bpp = 2, | |
155 | }, | |
156 | { | |
157 | .fmtdesc = { | |
158 | .index = 2, | |
159 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
160 | .description = "Bayer GrRBGb 8bit DPCM compr.", | |
161 | .pixelformat = V4L2_PIX_FMT_SGRBG10DPCM8, | |
162 | }, | |
163 | .bpp = 1, | |
164 | }, | |
165 | { | |
166 | .fmtdesc = { | |
167 | .index = 3, | |
168 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
169 | .description = "YCbCr 4:2:2 Interleaved UYVY", | |
170 | .pixelformat = V4L2_PIX_FMT_UYVY, | |
171 | }, | |
172 | .bpp = 2, | |
173 | }, | |
174 | { | |
175 | .fmtdesc = { | |
176 | .index = 4, | |
177 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
178 | .description = "YCbCr 4:2:2 Interleaved YUYV", | |
179 | .pixelformat = V4L2_PIX_FMT_YUYV, | |
180 | }, | |
181 | .bpp = 2, | |
182 | }, | |
183 | { | |
184 | .fmtdesc = { | |
185 | .index = 5, | |
186 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
187 | .description = "Y/CbCr 4:2:0 - Semi planar", | |
188 | .pixelformat = V4L2_PIX_FMT_NV12, | |
189 | }, | |
190 | .bpp = 1, | |
191 | }, | |
192 | }; | |
193 | ||
194 | /* | |
195 | * vpfe_lookup_pix_format() | |
196 | * lookup an entry in the vpfe pix format table based on pix_format | |
197 | */ | |
198 | static const struct vpfe_pixel_format *vpfe_lookup_pix_format(u32 pix_format) | |
199 | { | |
200 | int i; | |
201 | ||
202 | for (i = 0; i < ARRAY_SIZE(vpfe_pix_fmts); i++) { | |
203 | if (pix_format == vpfe_pix_fmts[i].fmtdesc.pixelformat) | |
204 | return &vpfe_pix_fmts[i]; | |
205 | } | |
206 | return NULL; | |
207 | } | |
208 | ||
209 | /* | |
210 | * vpfe_register_ccdc_device. CCDC module calls this to | |
211 | * register with vpfe capture | |
212 | */ | |
213 | int vpfe_register_ccdc_device(struct ccdc_hw_device *dev) | |
214 | { | |
215 | int ret = 0; | |
216 | printk(KERN_NOTICE "vpfe_register_ccdc_device: %s\n", dev->name); | |
217 | ||
218 | BUG_ON(!dev->hw_ops.open); | |
219 | BUG_ON(!dev->hw_ops.enable); | |
220 | BUG_ON(!dev->hw_ops.set_hw_if_params); | |
221 | BUG_ON(!dev->hw_ops.configure); | |
222 | BUG_ON(!dev->hw_ops.set_buftype); | |
223 | BUG_ON(!dev->hw_ops.get_buftype); | |
224 | BUG_ON(!dev->hw_ops.enum_pix); | |
225 | BUG_ON(!dev->hw_ops.set_frame_format); | |
226 | BUG_ON(!dev->hw_ops.get_frame_format); | |
227 | BUG_ON(!dev->hw_ops.get_pixel_format); | |
228 | BUG_ON(!dev->hw_ops.set_pixel_format); | |
229 | BUG_ON(!dev->hw_ops.set_params); | |
230 | BUG_ON(!dev->hw_ops.set_image_window); | |
231 | BUG_ON(!dev->hw_ops.get_image_window); | |
232 | BUG_ON(!dev->hw_ops.get_line_length); | |
233 | BUG_ON(!dev->hw_ops.setfbaddr); | |
234 | BUG_ON(!dev->hw_ops.getfid); | |
235 | ||
236 | mutex_lock(&ccdc_lock); | |
237 | if (NULL == ccdc_cfg) { | |
238 | /* | |
239 | * TODO. Will this ever happen? if so, we need to fix it. | |
240 | * Proabably we need to add the request to a linked list and | |
241 | * walk through it during vpfe probe | |
242 | */ | |
243 | printk(KERN_ERR "vpfe capture not initialized\n"); | |
244 | ret = -1; | |
245 | goto unlock; | |
246 | } | |
247 | ||
248 | if (strcmp(dev->name, ccdc_cfg->name)) { | |
249 | /* ignore this ccdc */ | |
250 | ret = -1; | |
251 | goto unlock; | |
252 | } | |
253 | ||
254 | if (ccdc_dev) { | |
255 | printk(KERN_ERR "ccdc already registered\n"); | |
256 | ret = -1; | |
257 | goto unlock; | |
258 | } | |
259 | ||
260 | ccdc_dev = dev; | |
261 | dev->hw_ops.set_ccdc_base(ccdc_cfg->ccdc_addr, | |
262 | ccdc_cfg->ccdc_addr_size); | |
263 | unlock: | |
264 | mutex_unlock(&ccdc_lock); | |
265 | return ret; | |
266 | } | |
267 | EXPORT_SYMBOL(vpfe_register_ccdc_device); | |
268 | ||
269 | /* | |
270 | * vpfe_unregister_ccdc_device. CCDC module calls this to | |
271 | * unregister with vpfe capture | |
272 | */ | |
273 | void vpfe_unregister_ccdc_device(struct ccdc_hw_device *dev) | |
274 | { | |
275 | if (NULL == dev) { | |
276 | printk(KERN_ERR "invalid ccdc device ptr\n"); | |
277 | return; | |
278 | } | |
279 | ||
280 | printk(KERN_NOTICE "vpfe_unregister_ccdc_device, dev->name = %s\n", | |
281 | dev->name); | |
282 | ||
283 | if (strcmp(dev->name, ccdc_cfg->name)) { | |
284 | /* ignore this ccdc */ | |
285 | return; | |
286 | } | |
287 | ||
288 | mutex_lock(&ccdc_lock); | |
289 | ccdc_dev = NULL; | |
290 | mutex_unlock(&ccdc_lock); | |
291 | return; | |
292 | } | |
293 | EXPORT_SYMBOL(vpfe_unregister_ccdc_device); | |
294 | ||
295 | /* | |
296 | * vpfe_get_ccdc_image_format - Get image parameters based on CCDC settings | |
297 | */ | |
298 | static int vpfe_get_ccdc_image_format(struct vpfe_device *vpfe_dev, | |
299 | struct v4l2_format *f) | |
300 | { | |
301 | struct v4l2_rect image_win; | |
302 | enum ccdc_buftype buf_type; | |
303 | enum ccdc_frmfmt frm_fmt; | |
304 | ||
305 | memset(f, 0, sizeof(*f)); | |
306 | f->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
307 | ccdc_dev->hw_ops.get_image_window(&image_win); | |
308 | f->fmt.pix.width = image_win.width; | |
309 | f->fmt.pix.height = image_win.height; | |
310 | f->fmt.pix.bytesperline = ccdc_dev->hw_ops.get_line_length(); | |
311 | f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * | |
312 | f->fmt.pix.height; | |
313 | buf_type = ccdc_dev->hw_ops.get_buftype(); | |
314 | f->fmt.pix.pixelformat = ccdc_dev->hw_ops.get_pixel_format(); | |
315 | frm_fmt = ccdc_dev->hw_ops.get_frame_format(); | |
316 | if (frm_fmt == CCDC_FRMFMT_PROGRESSIVE) | |
317 | f->fmt.pix.field = V4L2_FIELD_NONE; | |
318 | else if (frm_fmt == CCDC_FRMFMT_INTERLACED) { | |
319 | if (buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED) | |
320 | f->fmt.pix.field = V4L2_FIELD_INTERLACED; | |
321 | else if (buf_type == CCDC_BUFTYPE_FLD_SEPARATED) | |
322 | f->fmt.pix.field = V4L2_FIELD_SEQ_TB; | |
323 | else { | |
324 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf_type\n"); | |
325 | return -EINVAL; | |
326 | } | |
327 | } else { | |
328 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid frm_fmt\n"); | |
329 | return -EINVAL; | |
330 | } | |
331 | return 0; | |
332 | } | |
333 | ||
334 | /* | |
335 | * vpfe_config_ccdc_image_format() | |
336 | * For a pix format, configure ccdc to setup the capture | |
337 | */ | |
338 | static int vpfe_config_ccdc_image_format(struct vpfe_device *vpfe_dev) | |
339 | { | |
340 | enum ccdc_frmfmt frm_fmt = CCDC_FRMFMT_INTERLACED; | |
341 | int ret = 0; | |
342 | ||
343 | if (ccdc_dev->hw_ops.set_pixel_format( | |
344 | vpfe_dev->fmt.fmt.pix.pixelformat) < 0) { | |
345 | v4l2_err(&vpfe_dev->v4l2_dev, | |
346 | "couldn't set pix format in ccdc\n"); | |
347 | return -EINVAL; | |
348 | } | |
349 | /* configure the image window */ | |
350 | ccdc_dev->hw_ops.set_image_window(&vpfe_dev->crop); | |
351 | ||
352 | switch (vpfe_dev->fmt.fmt.pix.field) { | |
353 | case V4L2_FIELD_INTERLACED: | |
354 | /* do nothing, since it is default */ | |
355 | ret = ccdc_dev->hw_ops.set_buftype( | |
356 | CCDC_BUFTYPE_FLD_INTERLEAVED); | |
357 | break; | |
358 | case V4L2_FIELD_NONE: | |
359 | frm_fmt = CCDC_FRMFMT_PROGRESSIVE; | |
360 | /* buffer type only applicable for interlaced scan */ | |
361 | break; | |
362 | case V4L2_FIELD_SEQ_TB: | |
363 | ret = ccdc_dev->hw_ops.set_buftype( | |
364 | CCDC_BUFTYPE_FLD_SEPARATED); | |
365 | break; | |
366 | default: | |
367 | return -EINVAL; | |
368 | } | |
369 | ||
370 | /* set the frame format */ | |
371 | if (!ret) | |
372 | ret = ccdc_dev->hw_ops.set_frame_format(frm_fmt); | |
373 | return ret; | |
374 | } | |
375 | /* | |
376 | * vpfe_config_image_format() | |
377 | * For a given standard, this functions sets up the default | |
378 | * pix format & crop values in the vpfe device and ccdc. It first | |
379 | * starts with defaults based values from the standard table. | |
380 | * It then checks if sub device support g_fmt and then override the | |
381 | * values based on that.Sets crop values to match with scan resolution | |
382 | * starting at 0,0. It calls vpfe_config_ccdc_image_format() set the | |
383 | * values in ccdc | |
384 | */ | |
385 | static int vpfe_config_image_format(struct vpfe_device *vpfe_dev, | |
386 | const v4l2_std_id *std_id) | |
387 | { | |
388 | struct vpfe_subdev_info *sdinfo = vpfe_dev->current_subdev; | |
389 | int i, ret = 0; | |
390 | ||
391 | for (i = 0; i < ARRAY_SIZE(vpfe_standards); i++) { | |
392 | if (vpfe_standards[i].std_id & *std_id) { | |
393 | vpfe_dev->std_info.active_pixels = | |
394 | vpfe_standards[i].width; | |
395 | vpfe_dev->std_info.active_lines = | |
396 | vpfe_standards[i].height; | |
397 | vpfe_dev->std_info.frame_format = | |
398 | vpfe_standards[i].frame_format; | |
399 | vpfe_dev->std_index = i; | |
400 | break; | |
401 | } | |
402 | } | |
403 | ||
404 | if (i == ARRAY_SIZE(vpfe_standards)) { | |
405 | v4l2_err(&vpfe_dev->v4l2_dev, "standard not supported\n"); | |
406 | return -EINVAL; | |
407 | } | |
408 | ||
409 | vpfe_dev->crop.top = 0; | |
410 | vpfe_dev->crop.left = 0; | |
411 | vpfe_dev->crop.width = vpfe_dev->std_info.active_pixels; | |
412 | vpfe_dev->crop.height = vpfe_dev->std_info.active_lines; | |
413 | vpfe_dev->fmt.fmt.pix.width = vpfe_dev->crop.width; | |
414 | vpfe_dev->fmt.fmt.pix.height = vpfe_dev->crop.height; | |
415 | ||
416 | /* first field and frame format based on standard frame format */ | |
417 | if (vpfe_dev->std_info.frame_format) { | |
418 | vpfe_dev->fmt.fmt.pix.field = V4L2_FIELD_INTERLACED; | |
419 | /* assume V4L2_PIX_FMT_UYVY as default */ | |
420 | vpfe_dev->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; | |
421 | } else { | |
422 | vpfe_dev->fmt.fmt.pix.field = V4L2_FIELD_NONE; | |
423 | /* assume V4L2_PIX_FMT_SBGGR8 */ | |
424 | vpfe_dev->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_SBGGR8; | |
425 | } | |
426 | ||
427 | /* if sub device supports g_fmt, override the defaults */ | |
428 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, | |
429 | sdinfo->grp_id, video, g_fmt, &vpfe_dev->fmt); | |
430 | ||
431 | if (ret && ret != -ENOIOCTLCMD) { | |
432 | v4l2_err(&vpfe_dev->v4l2_dev, | |
433 | "error in getting g_fmt from sub device\n"); | |
434 | return ret; | |
435 | } | |
436 | ||
437 | /* Sets the values in CCDC */ | |
438 | ret = vpfe_config_ccdc_image_format(vpfe_dev); | |
439 | if (ret) | |
440 | return ret; | |
441 | ||
442 | /* Update the values of sizeimage and bytesperline */ | |
443 | if (!ret) { | |
444 | vpfe_dev->fmt.fmt.pix.bytesperline = | |
445 | ccdc_dev->hw_ops.get_line_length(); | |
446 | vpfe_dev->fmt.fmt.pix.sizeimage = | |
447 | vpfe_dev->fmt.fmt.pix.bytesperline * | |
448 | vpfe_dev->fmt.fmt.pix.height; | |
449 | } | |
450 | return ret; | |
451 | } | |
452 | ||
453 | static int vpfe_initialize_device(struct vpfe_device *vpfe_dev) | |
454 | { | |
455 | int ret = 0; | |
456 | ||
457 | /* set first input of current subdevice as the current input */ | |
458 | vpfe_dev->current_input = 0; | |
459 | ||
460 | /* set default standard */ | |
461 | vpfe_dev->std_index = 0; | |
462 | ||
463 | /* Configure the default format information */ | |
464 | ret = vpfe_config_image_format(vpfe_dev, | |
465 | &vpfe_standards[vpfe_dev->std_index].std_id); | |
466 | if (ret) | |
467 | return ret; | |
468 | ||
469 | /* now open the ccdc device to initialize it */ | |
470 | mutex_lock(&ccdc_lock); | |
471 | if (NULL == ccdc_dev) { | |
472 | v4l2_err(&vpfe_dev->v4l2_dev, "ccdc device not registered\n"); | |
473 | ret = -ENODEV; | |
474 | goto unlock; | |
475 | } | |
476 | ||
477 | if (!try_module_get(ccdc_dev->owner)) { | |
478 | v4l2_err(&vpfe_dev->v4l2_dev, "Couldn't lock ccdc module\n"); | |
479 | ret = -ENODEV; | |
480 | goto unlock; | |
481 | } | |
482 | ret = ccdc_dev->hw_ops.open(vpfe_dev->pdev); | |
483 | if (!ret) | |
484 | vpfe_dev->initialized = 1; | |
485 | unlock: | |
486 | mutex_unlock(&ccdc_lock); | |
487 | return ret; | |
488 | } | |
489 | ||
490 | /* | |
491 | * vpfe_open : It creates object of file handle structure and | |
492 | * stores it in private_data member of filepointer | |
493 | */ | |
494 | static int vpfe_open(struct file *file) | |
495 | { | |
496 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
497 | struct vpfe_fh *fh; | |
498 | ||
499 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_open\n"); | |
500 | ||
501 | if (!vpfe_dev->cfg->num_subdevs) { | |
502 | v4l2_err(&vpfe_dev->v4l2_dev, "No decoder registered\n"); | |
503 | return -ENODEV; | |
504 | } | |
505 | ||
506 | /* Allocate memory for the file handle object */ | |
507 | fh = kmalloc(sizeof(struct vpfe_fh), GFP_KERNEL); | |
508 | if (NULL == fh) { | |
509 | v4l2_err(&vpfe_dev->v4l2_dev, | |
510 | "unable to allocate memory for file handle object\n"); | |
511 | return -ENOMEM; | |
512 | } | |
513 | /* store pointer to fh in private_data member of file */ | |
514 | file->private_data = fh; | |
515 | fh->vpfe_dev = vpfe_dev; | |
516 | mutex_lock(&vpfe_dev->lock); | |
517 | /* If decoder is not initialized. initialize it */ | |
518 | if (!vpfe_dev->initialized) { | |
519 | if (vpfe_initialize_device(vpfe_dev)) { | |
520 | mutex_unlock(&vpfe_dev->lock); | |
521 | return -ENODEV; | |
522 | } | |
523 | } | |
524 | /* Increment device usrs counter */ | |
525 | vpfe_dev->usrs++; | |
526 | /* Set io_allowed member to false */ | |
527 | fh->io_allowed = 0; | |
528 | /* Initialize priority of this instance to default priority */ | |
529 | fh->prio = V4L2_PRIORITY_UNSET; | |
530 | v4l2_prio_open(&vpfe_dev->prio, &fh->prio); | |
531 | mutex_unlock(&vpfe_dev->lock); | |
532 | return 0; | |
533 | } | |
534 | ||
535 | static void vpfe_schedule_next_buffer(struct vpfe_device *vpfe_dev) | |
536 | { | |
537 | unsigned long addr; | |
538 | ||
539 | vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next, | |
540 | struct videobuf_buffer, queue); | |
541 | list_del(&vpfe_dev->next_frm->queue); | |
542 | vpfe_dev->next_frm->state = VIDEOBUF_ACTIVE; | |
543 | addr = videobuf_to_dma_contig(vpfe_dev->next_frm); | |
544 | ccdc_dev->hw_ops.setfbaddr(addr); | |
545 | } | |
546 | ||
547 | static void vpfe_process_buffer_complete(struct vpfe_device *vpfe_dev) | |
548 | { | |
549 | struct timeval timevalue; | |
550 | ||
551 | do_gettimeofday(&timevalue); | |
552 | vpfe_dev->cur_frm->ts = timevalue; | |
553 | vpfe_dev->cur_frm->state = VIDEOBUF_DONE; | |
554 | vpfe_dev->cur_frm->size = vpfe_dev->fmt.fmt.pix.sizeimage; | |
555 | wake_up_interruptible(&vpfe_dev->cur_frm->done); | |
556 | vpfe_dev->cur_frm = vpfe_dev->next_frm; | |
557 | } | |
558 | ||
559 | /* ISR for VINT0*/ | |
560 | static irqreturn_t vpfe_isr(int irq, void *dev_id) | |
561 | { | |
562 | struct vpfe_device *vpfe_dev = dev_id; | |
563 | enum v4l2_field field; | |
564 | unsigned long addr; | |
565 | int fid; | |
566 | ||
567 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nStarting vpfe_isr...\n"); | |
568 | field = vpfe_dev->fmt.fmt.pix.field; | |
569 | ||
570 | /* if streaming not started, don't do anything */ | |
571 | if (!vpfe_dev->started) | |
572 | return IRQ_HANDLED; | |
573 | ||
574 | /* only for 6446 this will be applicable */ | |
575 | if (NULL != ccdc_dev->hw_ops.reset) | |
576 | ccdc_dev->hw_ops.reset(); | |
577 | ||
578 | if (field == V4L2_FIELD_NONE) { | |
579 | /* handle progressive frame capture */ | |
580 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
581 | "frame format is progressive...\n"); | |
582 | if (vpfe_dev->cur_frm != vpfe_dev->next_frm) | |
583 | vpfe_process_buffer_complete(vpfe_dev); | |
584 | return IRQ_HANDLED; | |
585 | } | |
586 | ||
587 | /* interlaced or TB capture check which field we are in hardware */ | |
588 | fid = ccdc_dev->hw_ops.getfid(); | |
589 | ||
590 | /* switch the software maintained field id */ | |
591 | vpfe_dev->field_id ^= 1; | |
592 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "field id = %x:%x.\n", | |
593 | fid, vpfe_dev->field_id); | |
594 | if (fid == vpfe_dev->field_id) { | |
595 | /* we are in-sync here,continue */ | |
596 | if (fid == 0) { | |
597 | /* | |
598 | * One frame is just being captured. If the next frame | |
599 | * is available, release the current frame and move on | |
600 | */ | |
601 | if (vpfe_dev->cur_frm != vpfe_dev->next_frm) | |
602 | vpfe_process_buffer_complete(vpfe_dev); | |
603 | /* | |
604 | * based on whether the two fields are stored | |
605 | * interleavely or separately in memory, reconfigure | |
606 | * the CCDC memory address | |
607 | */ | |
608 | if (field == V4L2_FIELD_SEQ_TB) { | |
609 | addr = | |
610 | videobuf_to_dma_contig(vpfe_dev->cur_frm); | |
611 | addr += vpfe_dev->field_off; | |
612 | ccdc_dev->hw_ops.setfbaddr(addr); | |
613 | } | |
614 | return IRQ_HANDLED; | |
615 | } | |
616 | /* | |
617 | * if one field is just being captured configure | |
618 | * the next frame get the next frame from the empty | |
619 | * queue if no frame is available hold on to the | |
620 | * current buffer | |
621 | */ | |
622 | spin_lock(&vpfe_dev->dma_queue_lock); | |
623 | if (!list_empty(&vpfe_dev->dma_queue) && | |
624 | vpfe_dev->cur_frm == vpfe_dev->next_frm) | |
625 | vpfe_schedule_next_buffer(vpfe_dev); | |
626 | spin_unlock(&vpfe_dev->dma_queue_lock); | |
627 | } else if (fid == 0) { | |
628 | /* | |
629 | * out of sync. Recover from any hardware out-of-sync. | |
630 | * May loose one frame | |
631 | */ | |
632 | vpfe_dev->field_id = fid; | |
633 | } | |
634 | return IRQ_HANDLED; | |
635 | } | |
636 | ||
637 | /* vdint1_isr - isr handler for VINT1 interrupt */ | |
638 | static irqreturn_t vdint1_isr(int irq, void *dev_id) | |
639 | { | |
640 | struct vpfe_device *vpfe_dev = dev_id; | |
641 | ||
642 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nInside vdint1_isr...\n"); | |
643 | ||
644 | /* if streaming not started, don't do anything */ | |
645 | if (!vpfe_dev->started) | |
646 | return IRQ_HANDLED; | |
647 | ||
648 | spin_lock(&vpfe_dev->dma_queue_lock); | |
649 | if ((vpfe_dev->fmt.fmt.pix.field == V4L2_FIELD_NONE) && | |
650 | !list_empty(&vpfe_dev->dma_queue) && | |
651 | vpfe_dev->cur_frm == vpfe_dev->next_frm) | |
652 | vpfe_schedule_next_buffer(vpfe_dev); | |
653 | spin_unlock(&vpfe_dev->dma_queue_lock); | |
654 | return IRQ_HANDLED; | |
655 | } | |
656 | ||
657 | static void vpfe_detach_irq(struct vpfe_device *vpfe_dev) | |
658 | { | |
659 | enum ccdc_frmfmt frame_format; | |
660 | ||
661 | frame_format = ccdc_dev->hw_ops.get_frame_format(); | |
662 | if (frame_format == CCDC_FRMFMT_PROGRESSIVE) | |
1ead696b | 663 | free_irq(vpfe_dev->ccdc_irq1, vpfe_dev); |
7da8a6cb MK |
664 | } |
665 | ||
666 | static int vpfe_attach_irq(struct vpfe_device *vpfe_dev) | |
667 | { | |
668 | enum ccdc_frmfmt frame_format; | |
669 | ||
670 | frame_format = ccdc_dev->hw_ops.get_frame_format(); | |
671 | if (frame_format == CCDC_FRMFMT_PROGRESSIVE) { | |
672 | return request_irq(vpfe_dev->ccdc_irq1, vdint1_isr, | |
673 | IRQF_DISABLED, "vpfe_capture1", | |
674 | vpfe_dev); | |
675 | } | |
676 | return 0; | |
677 | } | |
678 | ||
679 | /* vpfe_stop_ccdc_capture: stop streaming in ccdc/isif */ | |
680 | static void vpfe_stop_ccdc_capture(struct vpfe_device *vpfe_dev) | |
681 | { | |
682 | vpfe_dev->started = 0; | |
683 | ccdc_dev->hw_ops.enable(0); | |
684 | if (ccdc_dev->hw_ops.enable_out_to_sdram) | |
685 | ccdc_dev->hw_ops.enable_out_to_sdram(0); | |
686 | } | |
687 | ||
688 | /* | |
689 | * vpfe_release : This function deletes buffer queue, frees the | |
690 | * buffers and the vpfe file handle | |
691 | */ | |
692 | static int vpfe_release(struct file *file) | |
693 | { | |
694 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
695 | struct vpfe_fh *fh = file->private_data; | |
696 | struct vpfe_subdev_info *sdinfo; | |
697 | int ret; | |
698 | ||
699 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_release\n"); | |
700 | ||
701 | /* Get the device lock */ | |
702 | mutex_lock(&vpfe_dev->lock); | |
703 | /* if this instance is doing IO */ | |
704 | if (fh->io_allowed) { | |
705 | if (vpfe_dev->started) { | |
706 | sdinfo = vpfe_dev->current_subdev; | |
707 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, | |
708 | sdinfo->grp_id, | |
709 | video, s_stream, 0); | |
710 | if (ret && (ret != -ENOIOCTLCMD)) | |
711 | v4l2_err(&vpfe_dev->v4l2_dev, | |
712 | "stream off failed in subdev\n"); | |
713 | vpfe_stop_ccdc_capture(vpfe_dev); | |
714 | vpfe_detach_irq(vpfe_dev); | |
715 | videobuf_streamoff(&vpfe_dev->buffer_queue); | |
716 | } | |
717 | vpfe_dev->io_usrs = 0; | |
718 | vpfe_dev->numbuffers = config_params.numbuffers; | |
719 | } | |
720 | ||
721 | /* Decrement device usrs counter */ | |
722 | vpfe_dev->usrs--; | |
723 | /* Close the priority */ | |
724 | v4l2_prio_close(&vpfe_dev->prio, &fh->prio); | |
725 | /* If this is the last file handle */ | |
726 | if (!vpfe_dev->usrs) { | |
727 | vpfe_dev->initialized = 0; | |
728 | if (ccdc_dev->hw_ops.close) | |
729 | ccdc_dev->hw_ops.close(vpfe_dev->pdev); | |
730 | module_put(ccdc_dev->owner); | |
731 | } | |
732 | mutex_unlock(&vpfe_dev->lock); | |
733 | file->private_data = NULL; | |
734 | /* Free memory allocated to file handle object */ | |
735 | kfree(fh); | |
736 | return 0; | |
737 | } | |
738 | ||
739 | /* | |
740 | * vpfe_mmap : It is used to map kernel space buffers | |
741 | * into user spaces | |
742 | */ | |
743 | static int vpfe_mmap(struct file *file, struct vm_area_struct *vma) | |
744 | { | |
745 | /* Get the device object and file handle object */ | |
746 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
747 | ||
748 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_mmap\n"); | |
749 | ||
750 | return videobuf_mmap_mapper(&vpfe_dev->buffer_queue, vma); | |
751 | } | |
752 | ||
753 | /* | |
754 | * vpfe_poll: It is used for select/poll system call | |
755 | */ | |
756 | static unsigned int vpfe_poll(struct file *file, poll_table *wait) | |
757 | { | |
758 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
759 | ||
760 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_poll\n"); | |
761 | ||
762 | if (vpfe_dev->started) | |
763 | return videobuf_poll_stream(file, | |
764 | &vpfe_dev->buffer_queue, wait); | |
765 | return 0; | |
766 | } | |
767 | ||
768 | /* vpfe capture driver file operations */ | |
769 | static const struct v4l2_file_operations vpfe_fops = { | |
770 | .owner = THIS_MODULE, | |
771 | .open = vpfe_open, | |
772 | .release = vpfe_release, | |
773 | .unlocked_ioctl = video_ioctl2, | |
774 | .mmap = vpfe_mmap, | |
775 | .poll = vpfe_poll | |
776 | }; | |
777 | ||
778 | /* | |
779 | * vpfe_check_format() | |
780 | * This function adjust the input pixel format as per hardware | |
781 | * capabilities and update the same in pixfmt. | |
782 | * Following algorithm used :- | |
783 | * | |
784 | * If given pixformat is not in the vpfe list of pix formats or not | |
785 | * supported by the hardware, current value of pixformat in the device | |
786 | * is used | |
787 | * If given field is not supported, then current field is used. If field | |
788 | * is different from current, then it is matched with that from sub device. | |
789 | * Minimum height is 2 lines for interlaced or tb field and 1 line for | |
790 | * progressive. Maximum height is clamped to active active lines of scan | |
791 | * Minimum width is 32 bytes in memory and width is clamped to active | |
792 | * pixels of scan. | |
793 | * bytesperline is a multiple of 32. | |
794 | */ | |
795 | static const struct vpfe_pixel_format * | |
796 | vpfe_check_format(struct vpfe_device *vpfe_dev, | |
797 | struct v4l2_pix_format *pixfmt) | |
798 | { | |
799 | u32 min_height = 1, min_width = 32, max_width, max_height; | |
800 | const struct vpfe_pixel_format *vpfe_pix_fmt; | |
801 | u32 pix; | |
802 | int temp, found; | |
803 | ||
804 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
805 | if (NULL == vpfe_pix_fmt) { | |
806 | /* | |
807 | * use current pixel format in the vpfe device. We | |
808 | * will find this pix format in the table | |
809 | */ | |
810 | pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat; | |
811 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
812 | } | |
813 | ||
814 | /* check if hw supports it */ | |
815 | temp = 0; | |
816 | found = 0; | |
817 | while (ccdc_dev->hw_ops.enum_pix(&pix, temp) >= 0) { | |
818 | if (vpfe_pix_fmt->fmtdesc.pixelformat == pix) { | |
819 | found = 1; | |
820 | break; | |
821 | } | |
822 | temp++; | |
823 | } | |
824 | ||
825 | if (!found) { | |
826 | /* use current pixel format */ | |
827 | pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat; | |
828 | /* | |
829 | * Since this is currently used in the vpfe device, we | |
830 | * will find this pix format in the table | |
831 | */ | |
832 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
833 | } | |
834 | ||
835 | /* check what field format is supported */ | |
836 | if (pixfmt->field == V4L2_FIELD_ANY) { | |
837 | /* if field is any, use current value as default */ | |
838 | pixfmt->field = vpfe_dev->fmt.fmt.pix.field; | |
839 | } | |
840 | ||
841 | /* | |
842 | * if field is not same as current field in the vpfe device | |
843 | * try matching the field with the sub device field | |
844 | */ | |
845 | if (vpfe_dev->fmt.fmt.pix.field != pixfmt->field) { | |
846 | /* | |
847 | * If field value is not in the supported fields, use current | |
848 | * field used in the device as default | |
849 | */ | |
850 | switch (pixfmt->field) { | |
851 | case V4L2_FIELD_INTERLACED: | |
852 | case V4L2_FIELD_SEQ_TB: | |
853 | /* if sub device is supporting progressive, use that */ | |
854 | if (!vpfe_dev->std_info.frame_format) | |
855 | pixfmt->field = V4L2_FIELD_NONE; | |
856 | break; | |
857 | case V4L2_FIELD_NONE: | |
858 | if (vpfe_dev->std_info.frame_format) | |
859 | pixfmt->field = V4L2_FIELD_INTERLACED; | |
860 | break; | |
861 | ||
862 | default: | |
863 | /* use current field as default */ | |
864 | pixfmt->field = vpfe_dev->fmt.fmt.pix.field; | |
865 | break; | |
866 | } | |
867 | } | |
868 | ||
869 | /* Now adjust image resolutions supported */ | |
870 | if (pixfmt->field == V4L2_FIELD_INTERLACED || | |
871 | pixfmt->field == V4L2_FIELD_SEQ_TB) | |
872 | min_height = 2; | |
873 | ||
874 | max_width = vpfe_dev->std_info.active_pixels; | |
875 | max_height = vpfe_dev->std_info.active_lines; | |
876 | min_width /= vpfe_pix_fmt->bpp; | |
877 | ||
878 | v4l2_info(&vpfe_dev->v4l2_dev, "width = %d, height = %d, bpp = %d\n", | |
879 | pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp); | |
880 | ||
881 | pixfmt->width = clamp((pixfmt->width), min_width, max_width); | |
882 | pixfmt->height = clamp((pixfmt->height), min_height, max_height); | |
883 | ||
884 | /* If interlaced, adjust height to be a multiple of 2 */ | |
885 | if (pixfmt->field == V4L2_FIELD_INTERLACED) | |
886 | pixfmt->height &= (~1); | |
887 | /* | |
888 | * recalculate bytesperline and sizeimage since width | |
889 | * and height might have changed | |
890 | */ | |
891 | pixfmt->bytesperline = (((pixfmt->width * vpfe_pix_fmt->bpp) + 31) | |
892 | & ~31); | |
893 | if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) | |
894 | pixfmt->sizeimage = | |
895 | pixfmt->bytesperline * pixfmt->height + | |
896 | ((pixfmt->bytesperline * pixfmt->height) >> 1); | |
897 | else | |
898 | pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; | |
899 | ||
900 | v4l2_info(&vpfe_dev->v4l2_dev, "adjusted width = %d, height =" | |
901 | " %d, bpp = %d, bytesperline = %d, sizeimage = %d\n", | |
902 | pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp, | |
903 | pixfmt->bytesperline, pixfmt->sizeimage); | |
904 | return vpfe_pix_fmt; | |
905 | } | |
906 | ||
907 | static int vpfe_querycap(struct file *file, void *priv, | |
908 | struct v4l2_capability *cap) | |
909 | { | |
910 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
911 | ||
912 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querycap\n"); | |
913 | ||
914 | cap->version = VPFE_CAPTURE_VERSION_CODE; | |
915 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; | |
916 | strlcpy(cap->driver, CAPTURE_DRV_NAME, sizeof(cap->driver)); | |
917 | strlcpy(cap->bus_info, "VPFE", sizeof(cap->bus_info)); | |
918 | strlcpy(cap->card, vpfe_dev->cfg->card_name, sizeof(cap->card)); | |
919 | return 0; | |
920 | } | |
921 | ||
922 | static int vpfe_g_fmt_vid_cap(struct file *file, void *priv, | |
923 | struct v4l2_format *fmt) | |
924 | { | |
925 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
926 | int ret = 0; | |
927 | ||
928 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_fmt_vid_cap\n"); | |
929 | /* Fill in the information about format */ | |
930 | *fmt = vpfe_dev->fmt; | |
931 | return ret; | |
932 | } | |
933 | ||
934 | static int vpfe_enum_fmt_vid_cap(struct file *file, void *priv, | |
935 | struct v4l2_fmtdesc *fmt) | |
936 | { | |
937 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
938 | const struct vpfe_pixel_format *pix_fmt; | |
939 | int temp_index; | |
940 | u32 pix; | |
941 | ||
942 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_fmt_vid_cap\n"); | |
943 | ||
944 | if (ccdc_dev->hw_ops.enum_pix(&pix, fmt->index) < 0) | |
945 | return -EINVAL; | |
946 | ||
947 | /* Fill in the information about format */ | |
948 | pix_fmt = vpfe_lookup_pix_format(pix); | |
949 | if (NULL != pix_fmt) { | |
950 | temp_index = fmt->index; | |
951 | *fmt = pix_fmt->fmtdesc; | |
952 | fmt->index = temp_index; | |
953 | return 0; | |
954 | } | |
955 | return -EINVAL; | |
956 | } | |
957 | ||
958 | static int vpfe_s_fmt_vid_cap(struct file *file, void *priv, | |
959 | struct v4l2_format *fmt) | |
960 | { | |
961 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
962 | const struct vpfe_pixel_format *pix_fmts; | |
963 | int ret = 0; | |
964 | ||
965 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_fmt_vid_cap\n"); | |
966 | ||
967 | /* If streaming is started, return error */ | |
968 | if (vpfe_dev->started) { | |
969 | v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is started\n"); | |
970 | return -EBUSY; | |
971 | } | |
972 | ||
973 | /* Check for valid frame format */ | |
974 | pix_fmts = vpfe_check_format(vpfe_dev, &fmt->fmt.pix); | |
975 | ||
976 | if (NULL == pix_fmts) | |
977 | return -EINVAL; | |
978 | ||
979 | /* store the pixel format in the device object */ | |
980 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
981 | if (ret) | |
982 | return ret; | |
983 | ||
984 | /* First detach any IRQ if currently attached */ | |
985 | vpfe_detach_irq(vpfe_dev); | |
986 | vpfe_dev->fmt = *fmt; | |
987 | /* set image capture parameters in the ccdc */ | |
988 | ret = vpfe_config_ccdc_image_format(vpfe_dev); | |
989 | mutex_unlock(&vpfe_dev->lock); | |
990 | return ret; | |
991 | } | |
992 | ||
993 | static int vpfe_try_fmt_vid_cap(struct file *file, void *priv, | |
994 | struct v4l2_format *f) | |
995 | { | |
996 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
997 | const struct vpfe_pixel_format *pix_fmts; | |
998 | ||
999 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_try_fmt_vid_cap\n"); | |
1000 | ||
1001 | pix_fmts = vpfe_check_format(vpfe_dev, &f->fmt.pix); | |
1002 | if (NULL == pix_fmts) | |
1003 | return -EINVAL; | |
1004 | return 0; | |
1005 | } | |
1006 | ||
1007 | /* | |
1008 | * vpfe_get_subdev_input_index - Get subdev index and subdev input index for a | |
1009 | * given app input index | |
1010 | */ | |
1011 | static int vpfe_get_subdev_input_index(struct vpfe_device *vpfe_dev, | |
1012 | int *subdev_index, | |
1013 | int *subdev_input_index, | |
1014 | int app_input_index) | |
1015 | { | |
1016 | struct vpfe_config *cfg = vpfe_dev->cfg; | |
1017 | struct vpfe_subdev_info *sdinfo; | |
1018 | int i, j = 0; | |
1019 | ||
1020 | for (i = 0; i < cfg->num_subdevs; i++) { | |
1021 | sdinfo = &cfg->sub_devs[i]; | |
1022 | if (app_input_index < (j + sdinfo->num_inputs)) { | |
1023 | *subdev_index = i; | |
1024 | *subdev_input_index = app_input_index - j; | |
1025 | return 0; | |
1026 | } | |
1027 | j += sdinfo->num_inputs; | |
1028 | } | |
1029 | return -EINVAL; | |
1030 | } | |
1031 | ||
1032 | /* | |
1033 | * vpfe_get_app_input - Get app input index for a given subdev input index | |
1034 | * driver stores the input index of the current sub device and translate it | |
1035 | * when application request the current input | |
1036 | */ | |
1037 | static int vpfe_get_app_input_index(struct vpfe_device *vpfe_dev, | |
1038 | int *app_input_index) | |
1039 | { | |
1040 | struct vpfe_config *cfg = vpfe_dev->cfg; | |
1041 | struct vpfe_subdev_info *sdinfo; | |
1042 | int i, j = 0; | |
1043 | ||
1044 | for (i = 0; i < cfg->num_subdevs; i++) { | |
1045 | sdinfo = &cfg->sub_devs[i]; | |
1046 | if (!strcmp(sdinfo->name, vpfe_dev->current_subdev->name)) { | |
1047 | if (vpfe_dev->current_input >= sdinfo->num_inputs) | |
1048 | return -1; | |
1049 | *app_input_index = j + vpfe_dev->current_input; | |
1050 | return 0; | |
1051 | } | |
1052 | j += sdinfo->num_inputs; | |
1053 | } | |
1054 | return -EINVAL; | |
1055 | } | |
1056 | ||
1057 | static int vpfe_enum_input(struct file *file, void *priv, | |
1058 | struct v4l2_input *inp) | |
1059 | { | |
1060 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1061 | struct vpfe_subdev_info *sdinfo; | |
1062 | int subdev, index ; | |
1063 | ||
1064 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_input\n"); | |
1065 | ||
1066 | if (vpfe_get_subdev_input_index(vpfe_dev, | |
1067 | &subdev, | |
1068 | &index, | |
1069 | inp->index) < 0) { | |
1070 | v4l2_err(&vpfe_dev->v4l2_dev, "input information not found" | |
1071 | " for the subdev\n"); | |
1072 | return -EINVAL; | |
1073 | } | |
1074 | sdinfo = &vpfe_dev->cfg->sub_devs[subdev]; | |
1075 | memcpy(inp, &sdinfo->inputs[index], sizeof(struct v4l2_input)); | |
1076 | return 0; | |
1077 | } | |
1078 | ||
1079 | static int vpfe_g_input(struct file *file, void *priv, unsigned int *index) | |
1080 | { | |
1081 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1082 | ||
1083 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_input\n"); | |
1084 | ||
1085 | return vpfe_get_app_input_index(vpfe_dev, index); | |
1086 | } | |
1087 | ||
1088 | ||
1089 | static int vpfe_s_input(struct file *file, void *priv, unsigned int index) | |
1090 | { | |
1091 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1092 | struct vpfe_subdev_info *sdinfo; | |
1093 | int subdev_index, inp_index; | |
1094 | struct vpfe_route *route; | |
1095 | u32 input = 0, output = 0; | |
1096 | int ret = -EINVAL; | |
1097 | ||
1098 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_input\n"); | |
1099 | ||
1100 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1101 | if (ret) | |
1102 | return ret; | |
1103 | ||
1104 | /* | |
1105 | * If streaming is started return device busy | |
1106 | * error | |
1107 | */ | |
1108 | if (vpfe_dev->started) { | |
1109 | v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is on\n"); | |
1110 | ret = -EBUSY; | |
1111 | goto unlock_out; | |
1112 | } | |
1113 | ||
1114 | if (vpfe_get_subdev_input_index(vpfe_dev, | |
1115 | &subdev_index, | |
1116 | &inp_index, | |
1117 | index) < 0) { | |
1118 | v4l2_err(&vpfe_dev->v4l2_dev, "invalid input index\n"); | |
1119 | goto unlock_out; | |
1120 | } | |
1121 | ||
1122 | sdinfo = &vpfe_dev->cfg->sub_devs[subdev_index]; | |
1123 | route = &sdinfo->routes[inp_index]; | |
1124 | if (route && sdinfo->can_route) { | |
1125 | input = route->input; | |
1126 | output = route->output; | |
1127 | } | |
1128 | ||
1129 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1130 | video, s_routing, input, output, 0); | |
1131 | ||
1132 | if (ret) { | |
1133 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1134 | "vpfe_doioctl:error in setting input in decoder\n"); | |
1135 | ret = -EINVAL; | |
1136 | goto unlock_out; | |
1137 | } | |
1138 | vpfe_dev->current_subdev = sdinfo; | |
1139 | vpfe_dev->current_input = index; | |
1140 | vpfe_dev->std_index = 0; | |
1141 | ||
1142 | /* set the bus/interface parameter for the sub device in ccdc */ | |
1143 | ret = ccdc_dev->hw_ops.set_hw_if_params(&sdinfo->ccdc_if_params); | |
1144 | if (ret) | |
1145 | goto unlock_out; | |
1146 | ||
1147 | /* set the default image parameters in the device */ | |
1148 | ret = vpfe_config_image_format(vpfe_dev, | |
1149 | &vpfe_standards[vpfe_dev->std_index].std_id); | |
1150 | unlock_out: | |
1151 | mutex_unlock(&vpfe_dev->lock); | |
1152 | return ret; | |
1153 | } | |
1154 | ||
1155 | static int vpfe_querystd(struct file *file, void *priv, v4l2_std_id *std_id) | |
1156 | { | |
1157 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1158 | struct vpfe_subdev_info *sdinfo; | |
1159 | int ret = 0; | |
1160 | ||
1161 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querystd\n"); | |
1162 | ||
1163 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1164 | sdinfo = vpfe_dev->current_subdev; | |
1165 | if (ret) | |
1166 | return ret; | |
1167 | /* Call querystd function of decoder device */ | |
1168 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1169 | video, querystd, std_id); | |
1170 | mutex_unlock(&vpfe_dev->lock); | |
1171 | return ret; | |
1172 | } | |
1173 | ||
1174 | static int vpfe_s_std(struct file *file, void *priv, v4l2_std_id *std_id) | |
1175 | { | |
1176 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1177 | struct vpfe_subdev_info *sdinfo; | |
1178 | int ret = 0; | |
1179 | ||
1180 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_std\n"); | |
1181 | ||
1182 | /* Call decoder driver function to set the standard */ | |
1183 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1184 | if (ret) | |
1185 | return ret; | |
1186 | ||
1187 | sdinfo = vpfe_dev->current_subdev; | |
1188 | /* If streaming is started, return device busy error */ | |
1189 | if (vpfe_dev->started) { | |
1190 | v4l2_err(&vpfe_dev->v4l2_dev, "streaming is started\n"); | |
1191 | ret = -EBUSY; | |
1192 | goto unlock_out; | |
1193 | } | |
1194 | ||
1195 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1196 | core, s_std, *std_id); | |
1197 | if (ret < 0) { | |
1198 | v4l2_err(&vpfe_dev->v4l2_dev, "Failed to set standard\n"); | |
1199 | goto unlock_out; | |
1200 | } | |
1201 | ret = vpfe_config_image_format(vpfe_dev, std_id); | |
1202 | ||
1203 | unlock_out: | |
1204 | mutex_unlock(&vpfe_dev->lock); | |
1205 | return ret; | |
1206 | } | |
1207 | ||
1208 | static int vpfe_g_std(struct file *file, void *priv, v4l2_std_id *std_id) | |
1209 | { | |
1210 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1211 | ||
1212 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_std\n"); | |
1213 | ||
1214 | *std_id = vpfe_standards[vpfe_dev->std_index].std_id; | |
1215 | return 0; | |
1216 | } | |
1217 | /* | |
1218 | * Videobuf operations | |
1219 | */ | |
1220 | static int vpfe_videobuf_setup(struct videobuf_queue *vq, | |
1221 | unsigned int *count, | |
1222 | unsigned int *size) | |
1223 | { | |
1224 | struct vpfe_fh *fh = vq->priv_data; | |
1225 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1226 | ||
1227 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_setup\n"); | |
1228 | *size = config_params.device_bufsize; | |
1229 | ||
1230 | if (*count < config_params.min_numbuffers) | |
1231 | *count = config_params.min_numbuffers; | |
1232 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1233 | "count=%d, size=%d\n", *count, *size); | |
1234 | return 0; | |
1235 | } | |
1236 | ||
1237 | static int vpfe_videobuf_prepare(struct videobuf_queue *vq, | |
1238 | struct videobuf_buffer *vb, | |
1239 | enum v4l2_field field) | |
1240 | { | |
1241 | struct vpfe_fh *fh = vq->priv_data; | |
1242 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1243 | ||
1244 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_prepare\n"); | |
1245 | ||
1246 | /* If buffer is not initialized, initialize it */ | |
1247 | if (VIDEOBUF_NEEDS_INIT == vb->state) { | |
1248 | vb->width = vpfe_dev->fmt.fmt.pix.width; | |
1249 | vb->height = vpfe_dev->fmt.fmt.pix.height; | |
1250 | vb->size = vpfe_dev->fmt.fmt.pix.sizeimage; | |
1251 | vb->field = field; | |
1252 | } | |
1253 | vb->state = VIDEOBUF_PREPARED; | |
1254 | return 0; | |
1255 | } | |
1256 | ||
1257 | static void vpfe_videobuf_queue(struct videobuf_queue *vq, | |
1258 | struct videobuf_buffer *vb) | |
1259 | { | |
1260 | /* Get the file handle object and device object */ | |
1261 | struct vpfe_fh *fh = vq->priv_data; | |
1262 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1263 | unsigned long flags; | |
1264 | ||
1265 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_queue\n"); | |
1266 | ||
1267 | /* add the buffer to the DMA queue */ | |
1268 | spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags); | |
1269 | list_add_tail(&vb->queue, &vpfe_dev->dma_queue); | |
1270 | spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags); | |
1271 | ||
1272 | /* Change state of the buffer */ | |
1273 | vb->state = VIDEOBUF_QUEUED; | |
1274 | } | |
1275 | ||
1276 | static void vpfe_videobuf_release(struct videobuf_queue *vq, | |
1277 | struct videobuf_buffer *vb) | |
1278 | { | |
1279 | struct vpfe_fh *fh = vq->priv_data; | |
1280 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1281 | unsigned long flags; | |
1282 | ||
1283 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_videobuf_release\n"); | |
1284 | ||
1285 | /* | |
1286 | * We need to flush the buffer from the dma queue since | |
1287 | * they are de-allocated | |
1288 | */ | |
1289 | spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags); | |
1290 | INIT_LIST_HEAD(&vpfe_dev->dma_queue); | |
1291 | spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags); | |
1292 | videobuf_dma_contig_free(vq, vb); | |
1293 | vb->state = VIDEOBUF_NEEDS_INIT; | |
1294 | } | |
1295 | ||
1296 | static struct videobuf_queue_ops vpfe_videobuf_qops = { | |
1297 | .buf_setup = vpfe_videobuf_setup, | |
1298 | .buf_prepare = vpfe_videobuf_prepare, | |
1299 | .buf_queue = vpfe_videobuf_queue, | |
1300 | .buf_release = vpfe_videobuf_release, | |
1301 | }; | |
1302 | ||
1303 | /* | |
1304 | * vpfe_reqbufs. currently support REQBUF only once opening | |
1305 | * the device. | |
1306 | */ | |
1307 | static int vpfe_reqbufs(struct file *file, void *priv, | |
1308 | struct v4l2_requestbuffers *req_buf) | |
1309 | { | |
1310 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1311 | struct vpfe_fh *fh = file->private_data; | |
1312 | int ret = 0; | |
1313 | ||
1314 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_reqbufs\n"); | |
1315 | ||
1316 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != req_buf->type) { | |
1317 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1318 | return -EINVAL; | |
1319 | } | |
1320 | ||
1321 | if (V4L2_MEMORY_USERPTR == req_buf->memory) { | |
1322 | /* we don't support user ptr IO */ | |
1323 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_reqbufs:" | |
1324 | " USERPTR IO not supported\n"); | |
1325 | return -EINVAL; | |
1326 | } | |
1327 | ||
1328 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1329 | if (ret) | |
1330 | return ret; | |
1331 | ||
1332 | if (vpfe_dev->io_usrs != 0) { | |
1333 | v4l2_err(&vpfe_dev->v4l2_dev, "Only one IO user allowed\n"); | |
1334 | ret = -EBUSY; | |
1335 | goto unlock_out; | |
1336 | } | |
1337 | ||
1338 | vpfe_dev->memory = req_buf->memory; | |
1339 | videobuf_queue_dma_contig_init(&vpfe_dev->buffer_queue, | |
1340 | &vpfe_videobuf_qops, | |
204e6ea9 | 1341 | vpfe_dev->pdev, |
7da8a6cb MK |
1342 | &vpfe_dev->irqlock, |
1343 | req_buf->type, | |
1344 | vpfe_dev->fmt.fmt.pix.field, | |
1345 | sizeof(struct videobuf_buffer), | |
1346 | fh); | |
1347 | ||
1348 | fh->io_allowed = 1; | |
1349 | vpfe_dev->io_usrs = 1; | |
1350 | INIT_LIST_HEAD(&vpfe_dev->dma_queue); | |
1351 | ret = videobuf_reqbufs(&vpfe_dev->buffer_queue, req_buf); | |
1352 | unlock_out: | |
1353 | mutex_unlock(&vpfe_dev->lock); | |
1354 | return ret; | |
1355 | } | |
1356 | ||
1357 | static int vpfe_querybuf(struct file *file, void *priv, | |
1358 | struct v4l2_buffer *buf) | |
1359 | { | |
1360 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1361 | ||
1362 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querybuf\n"); | |
1363 | ||
1364 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) { | |
1365 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1366 | return -EINVAL; | |
1367 | } | |
1368 | ||
1369 | if (vpfe_dev->memory != V4L2_MEMORY_MMAP) { | |
1370 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid memory\n"); | |
1371 | return -EINVAL; | |
1372 | } | |
1373 | /* Call videobuf_querybuf to get information */ | |
1374 | return videobuf_querybuf(&vpfe_dev->buffer_queue, buf); | |
1375 | } | |
1376 | ||
1377 | static int vpfe_qbuf(struct file *file, void *priv, | |
1378 | struct v4l2_buffer *p) | |
1379 | { | |
1380 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1381 | struct vpfe_fh *fh = file->private_data; | |
1382 | ||
1383 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_qbuf\n"); | |
1384 | ||
1385 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != p->type) { | |
1386 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1387 | return -EINVAL; | |
1388 | } | |
1389 | ||
1390 | /* | |
1391 | * If this file handle is not allowed to do IO, | |
1392 | * return error | |
1393 | */ | |
1394 | if (!fh->io_allowed) { | |
1395 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1396 | return -EACCES; | |
1397 | } | |
1398 | return videobuf_qbuf(&vpfe_dev->buffer_queue, p); | |
1399 | } | |
1400 | ||
1401 | static int vpfe_dqbuf(struct file *file, void *priv, | |
1402 | struct v4l2_buffer *buf) | |
1403 | { | |
1404 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1405 | ||
1406 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_dqbuf\n"); | |
1407 | ||
1408 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) { | |
1409 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1410 | return -EINVAL; | |
1411 | } | |
1412 | return videobuf_dqbuf(&vpfe_dev->buffer_queue, | |
1413 | buf, file->f_flags & O_NONBLOCK); | |
1414 | } | |
1415 | ||
d73bfc5f VH |
1416 | static int vpfe_queryctrl(struct file *file, void *priv, |
1417 | struct v4l2_queryctrl *qctrl) | |
1418 | { | |
1419 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1420 | struct vpfe_subdev_info *sdinfo; | |
1421 | ||
1422 | sdinfo = vpfe_dev->current_subdev; | |
1423 | ||
1424 | return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1425 | core, queryctrl, qctrl); | |
1426 | ||
1427 | } | |
1428 | ||
1429 | static int vpfe_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) | |
1430 | { | |
1431 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1432 | struct vpfe_subdev_info *sdinfo; | |
1433 | ||
1434 | sdinfo = vpfe_dev->current_subdev; | |
1435 | ||
1436 | return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1437 | core, g_ctrl, ctrl); | |
1438 | } | |
1439 | ||
1440 | static int vpfe_s_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) | |
1441 | { | |
1442 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1443 | struct vpfe_subdev_info *sdinfo; | |
1444 | ||
1445 | sdinfo = vpfe_dev->current_subdev; | |
1446 | ||
1447 | return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1448 | core, s_ctrl, ctrl); | |
1449 | } | |
1450 | ||
7da8a6cb MK |
1451 | /* |
1452 | * vpfe_calculate_offsets : This function calculates buffers offset | |
1453 | * for top and bottom field | |
1454 | */ | |
1455 | static void vpfe_calculate_offsets(struct vpfe_device *vpfe_dev) | |
1456 | { | |
1457 | struct v4l2_rect image_win; | |
1458 | ||
1459 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_calculate_offsets\n"); | |
1460 | ||
1461 | ccdc_dev->hw_ops.get_image_window(&image_win); | |
1462 | vpfe_dev->field_off = image_win.height * image_win.width; | |
1463 | } | |
1464 | ||
1465 | /* vpfe_start_ccdc_capture: start streaming in ccdc/isif */ | |
1466 | static void vpfe_start_ccdc_capture(struct vpfe_device *vpfe_dev) | |
1467 | { | |
1468 | ccdc_dev->hw_ops.enable(1); | |
1469 | if (ccdc_dev->hw_ops.enable_out_to_sdram) | |
1470 | ccdc_dev->hw_ops.enable_out_to_sdram(1); | |
1471 | vpfe_dev->started = 1; | |
1472 | } | |
1473 | ||
1474 | /* | |
1475 | * vpfe_streamon. Assume the DMA queue is not empty. | |
1476 | * application is expected to call QBUF before calling | |
1477 | * this ioctl. If not, driver returns error | |
1478 | */ | |
1479 | static int vpfe_streamon(struct file *file, void *priv, | |
1480 | enum v4l2_buf_type buf_type) | |
1481 | { | |
1482 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1483 | struct vpfe_fh *fh = file->private_data; | |
1484 | struct vpfe_subdev_info *sdinfo; | |
1485 | unsigned long addr; | |
1486 | int ret = 0; | |
1487 | ||
1488 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamon\n"); | |
1489 | ||
1490 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) { | |
1491 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1492 | return -EINVAL; | |
1493 | } | |
1494 | ||
1495 | /* If file handle is not allowed IO, return error */ | |
1496 | if (!fh->io_allowed) { | |
1497 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1498 | return -EACCES; | |
1499 | } | |
1500 | ||
1501 | sdinfo = vpfe_dev->current_subdev; | |
1502 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1503 | video, s_stream, 1); | |
1504 | ||
1505 | if (ret && (ret != -ENOIOCTLCMD)) { | |
1506 | v4l2_err(&vpfe_dev->v4l2_dev, "stream on failed in subdev\n"); | |
1507 | return -EINVAL; | |
1508 | } | |
1509 | ||
1510 | /* If buffer queue is empty, return error */ | |
1511 | if (list_empty(&vpfe_dev->buffer_queue.stream)) { | |
1512 | v4l2_err(&vpfe_dev->v4l2_dev, "buffer queue is empty\n"); | |
1513 | return -EIO; | |
1514 | } | |
1515 | ||
1516 | /* Call videobuf_streamon to start streaming * in videobuf */ | |
1517 | ret = videobuf_streamon(&vpfe_dev->buffer_queue); | |
1518 | if (ret) | |
1519 | return ret; | |
1520 | ||
1521 | ||
1522 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1523 | if (ret) | |
1524 | goto streamoff; | |
1525 | /* Get the next frame from the buffer queue */ | |
1526 | vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next, | |
1527 | struct videobuf_buffer, queue); | |
1528 | vpfe_dev->cur_frm = vpfe_dev->next_frm; | |
1529 | /* Remove buffer from the buffer queue */ | |
1530 | list_del(&vpfe_dev->cur_frm->queue); | |
1531 | /* Mark state of the current frame to active */ | |
1532 | vpfe_dev->cur_frm->state = VIDEOBUF_ACTIVE; | |
1533 | /* Initialize field_id and started member */ | |
1534 | vpfe_dev->field_id = 0; | |
1535 | addr = videobuf_to_dma_contig(vpfe_dev->cur_frm); | |
1536 | ||
1537 | /* Calculate field offset */ | |
1538 | vpfe_calculate_offsets(vpfe_dev); | |
1539 | ||
1540 | if (vpfe_attach_irq(vpfe_dev) < 0) { | |
1541 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1542 | "Error in attaching interrupt handle\n"); | |
1543 | ret = -EFAULT; | |
1544 | goto unlock_out; | |
1545 | } | |
1546 | if (ccdc_dev->hw_ops.configure() < 0) { | |
1547 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1548 | "Error in configuring ccdc\n"); | |
1549 | ret = -EINVAL; | |
1550 | goto unlock_out; | |
1551 | } | |
1552 | ccdc_dev->hw_ops.setfbaddr((unsigned long)(addr)); | |
1553 | vpfe_start_ccdc_capture(vpfe_dev); | |
1554 | mutex_unlock(&vpfe_dev->lock); | |
1555 | return ret; | |
1556 | unlock_out: | |
1557 | mutex_unlock(&vpfe_dev->lock); | |
1558 | streamoff: | |
1559 | ret = videobuf_streamoff(&vpfe_dev->buffer_queue); | |
1560 | return ret; | |
1561 | } | |
1562 | ||
1563 | static int vpfe_streamoff(struct file *file, void *priv, | |
1564 | enum v4l2_buf_type buf_type) | |
1565 | { | |
1566 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1567 | struct vpfe_fh *fh = file->private_data; | |
1568 | struct vpfe_subdev_info *sdinfo; | |
1569 | int ret = 0; | |
1570 | ||
1571 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamoff\n"); | |
1572 | ||
1573 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) { | |
1574 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1575 | return -EINVAL; | |
1576 | } | |
1577 | ||
1578 | /* If io is allowed for this file handle, return error */ | |
1579 | if (!fh->io_allowed) { | |
1580 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1581 | return -EACCES; | |
1582 | } | |
1583 | ||
1584 | /* If streaming is not started, return error */ | |
1585 | if (!vpfe_dev->started) { | |
1586 | v4l2_err(&vpfe_dev->v4l2_dev, "device started\n"); | |
1587 | return -EINVAL; | |
1588 | } | |
1589 | ||
1590 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1591 | if (ret) | |
1592 | return ret; | |
1593 | ||
1594 | vpfe_stop_ccdc_capture(vpfe_dev); | |
1595 | vpfe_detach_irq(vpfe_dev); | |
1596 | ||
1597 | sdinfo = vpfe_dev->current_subdev; | |
1598 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1599 | video, s_stream, 0); | |
1600 | ||
1601 | if (ret && (ret != -ENOIOCTLCMD)) | |
1602 | v4l2_err(&vpfe_dev->v4l2_dev, "stream off failed in subdev\n"); | |
1603 | ret = videobuf_streamoff(&vpfe_dev->buffer_queue); | |
1604 | mutex_unlock(&vpfe_dev->lock); | |
1605 | return ret; | |
1606 | } | |
1607 | ||
1608 | static int vpfe_cropcap(struct file *file, void *priv, | |
1609 | struct v4l2_cropcap *crop) | |
1610 | { | |
1611 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1612 | ||
1613 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_cropcap\n"); | |
1614 | ||
0b66cf90 | 1615 | if (vpfe_dev->std_index >= ARRAY_SIZE(vpfe_standards)) |
7da8a6cb MK |
1616 | return -EINVAL; |
1617 | ||
1618 | memset(crop, 0, sizeof(struct v4l2_cropcap)); | |
1619 | crop->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1620 | crop->bounds.width = crop->defrect.width = | |
1621 | vpfe_standards[vpfe_dev->std_index].width; | |
1622 | crop->bounds.height = crop->defrect.height = | |
1623 | vpfe_standards[vpfe_dev->std_index].height; | |
1624 | crop->pixelaspect = vpfe_standards[vpfe_dev->std_index].pixelaspect; | |
1625 | return 0; | |
1626 | } | |
1627 | ||
1628 | static int vpfe_g_crop(struct file *file, void *priv, | |
1629 | struct v4l2_crop *crop) | |
1630 | { | |
1631 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1632 | ||
1633 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_crop\n"); | |
1634 | ||
1635 | crop->c = vpfe_dev->crop; | |
1636 | return 0; | |
1637 | } | |
1638 | ||
1639 | static int vpfe_s_crop(struct file *file, void *priv, | |
1640 | struct v4l2_crop *crop) | |
1641 | { | |
1642 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1643 | int ret = 0; | |
1644 | ||
1645 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_crop\n"); | |
1646 | ||
1647 | if (vpfe_dev->started) { | |
1648 | /* make sure streaming is not started */ | |
1649 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1650 | "Cannot change crop when streaming is ON\n"); | |
1651 | return -EBUSY; | |
1652 | } | |
1653 | ||
1654 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1655 | if (ret) | |
1656 | return ret; | |
1657 | ||
1658 | if (crop->c.top < 0 || crop->c.left < 0) { | |
1659 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1660 | "doesn't support negative values for top & left\n"); | |
1661 | ret = -EINVAL; | |
1662 | goto unlock_out; | |
1663 | } | |
1664 | ||
1665 | /* adjust the width to 16 pixel boundry */ | |
1666 | crop->c.width = ((crop->c.width + 15) & ~0xf); | |
1667 | ||
1668 | /* make sure parameters are valid */ | |
1669 | if ((crop->c.left + crop->c.width > | |
1670 | vpfe_dev->std_info.active_pixels) || | |
1671 | (crop->c.top + crop->c.height > | |
1672 | vpfe_dev->std_info.active_lines)) { | |
1673 | v4l2_err(&vpfe_dev->v4l2_dev, "Error in S_CROP params\n"); | |
1674 | ret = -EINVAL; | |
1675 | goto unlock_out; | |
1676 | } | |
1677 | ccdc_dev->hw_ops.set_image_window(&crop->c); | |
1678 | vpfe_dev->fmt.fmt.pix.width = crop->c.width; | |
1679 | vpfe_dev->fmt.fmt.pix.height = crop->c.height; | |
1680 | vpfe_dev->fmt.fmt.pix.bytesperline = | |
1681 | ccdc_dev->hw_ops.get_line_length(); | |
1682 | vpfe_dev->fmt.fmt.pix.sizeimage = | |
1683 | vpfe_dev->fmt.fmt.pix.bytesperline * | |
1684 | vpfe_dev->fmt.fmt.pix.height; | |
1685 | vpfe_dev->crop = crop->c; | |
1686 | unlock_out: | |
1687 | mutex_unlock(&vpfe_dev->lock); | |
1688 | return ret; | |
1689 | } | |
1690 | ||
1691 | ||
1692 | static long vpfe_param_handler(struct file *file, void *priv, | |
1693 | int cmd, void *param) | |
1694 | { | |
1695 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1696 | int ret = 0; | |
1697 | ||
1698 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_param_handler\n"); | |
1699 | ||
1700 | if (vpfe_dev->started) { | |
1701 | /* only allowed if streaming is not started */ | |
1702 | v4l2_err(&vpfe_dev->v4l2_dev, "device already started\n"); | |
1703 | return -EBUSY; | |
1704 | } | |
1705 | ||
1706 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1707 | if (ret) | |
1708 | return ret; | |
1709 | ||
1710 | switch (cmd) { | |
1711 | case VPFE_CMD_S_CCDC_RAW_PARAMS: | |
1712 | v4l2_warn(&vpfe_dev->v4l2_dev, | |
1713 | "VPFE_CMD_S_CCDC_RAW_PARAMS: experimental ioctl\n"); | |
1714 | ret = ccdc_dev->hw_ops.set_params(param); | |
1715 | if (ret) { | |
1716 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1717 | "Error in setting parameters in CCDC\n"); | |
1718 | goto unlock_out; | |
1719 | } | |
1720 | if (vpfe_get_ccdc_image_format(vpfe_dev, &vpfe_dev->fmt) < 0) { | |
1721 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1722 | "Invalid image format at CCDC\n"); | |
1723 | goto unlock_out; | |
1724 | } | |
1725 | break; | |
1726 | default: | |
1727 | ret = -EINVAL; | |
1728 | } | |
1729 | unlock_out: | |
1730 | mutex_unlock(&vpfe_dev->lock); | |
1731 | return ret; | |
1732 | } | |
1733 | ||
1734 | ||
1735 | /* vpfe capture ioctl operations */ | |
1736 | static const struct v4l2_ioctl_ops vpfe_ioctl_ops = { | |
1737 | .vidioc_querycap = vpfe_querycap, | |
1738 | .vidioc_g_fmt_vid_cap = vpfe_g_fmt_vid_cap, | |
1739 | .vidioc_enum_fmt_vid_cap = vpfe_enum_fmt_vid_cap, | |
1740 | .vidioc_s_fmt_vid_cap = vpfe_s_fmt_vid_cap, | |
1741 | .vidioc_try_fmt_vid_cap = vpfe_try_fmt_vid_cap, | |
1742 | .vidioc_enum_input = vpfe_enum_input, | |
1743 | .vidioc_g_input = vpfe_g_input, | |
1744 | .vidioc_s_input = vpfe_s_input, | |
1745 | .vidioc_querystd = vpfe_querystd, | |
1746 | .vidioc_s_std = vpfe_s_std, | |
1747 | .vidioc_g_std = vpfe_g_std, | |
d73bfc5f VH |
1748 | .vidioc_queryctrl = vpfe_queryctrl, |
1749 | .vidioc_g_ctrl = vpfe_g_ctrl, | |
1750 | .vidioc_s_ctrl = vpfe_s_ctrl, | |
7da8a6cb MK |
1751 | .vidioc_reqbufs = vpfe_reqbufs, |
1752 | .vidioc_querybuf = vpfe_querybuf, | |
1753 | .vidioc_qbuf = vpfe_qbuf, | |
1754 | .vidioc_dqbuf = vpfe_dqbuf, | |
1755 | .vidioc_streamon = vpfe_streamon, | |
1756 | .vidioc_streamoff = vpfe_streamoff, | |
1757 | .vidioc_cropcap = vpfe_cropcap, | |
1758 | .vidioc_g_crop = vpfe_g_crop, | |
1759 | .vidioc_s_crop = vpfe_s_crop, | |
1760 | .vidioc_default = vpfe_param_handler, | |
1761 | }; | |
1762 | ||
1763 | static struct vpfe_device *vpfe_initialize(void) | |
1764 | { | |
1765 | struct vpfe_device *vpfe_dev; | |
1766 | ||
1767 | /* Default number of buffers should be 3 */ | |
1768 | if ((numbuffers > 0) && | |
1769 | (numbuffers < config_params.min_numbuffers)) | |
1770 | numbuffers = config_params.min_numbuffers; | |
1771 | ||
1772 | /* | |
1773 | * Set buffer size to min buffers size if invalid buffer size is | |
1774 | * given | |
1775 | */ | |
1776 | if (bufsize < config_params.min_bufsize) | |
1777 | bufsize = config_params.min_bufsize; | |
1778 | ||
1779 | config_params.numbuffers = numbuffers; | |
1780 | ||
1781 | if (numbuffers) | |
1782 | config_params.device_bufsize = bufsize; | |
1783 | ||
1784 | /* Allocate memory for device objects */ | |
1785 | vpfe_dev = kzalloc(sizeof(*vpfe_dev), GFP_KERNEL); | |
1786 | ||
1787 | return vpfe_dev; | |
1788 | } | |
1789 | ||
1790 | static void vpfe_disable_clock(struct vpfe_device *vpfe_dev) | |
1791 | { | |
1792 | struct vpfe_config *vpfe_cfg = vpfe_dev->cfg; | |
1793 | ||
1794 | clk_disable(vpfe_cfg->vpssclk); | |
1795 | clk_put(vpfe_cfg->vpssclk); | |
1796 | clk_disable(vpfe_cfg->slaveclk); | |
1797 | clk_put(vpfe_cfg->slaveclk); | |
1798 | v4l2_info(vpfe_dev->pdev->driver, | |
1799 | "vpfe vpss master & slave clocks disabled\n"); | |
1800 | } | |
1801 | ||
1802 | static int vpfe_enable_clock(struct vpfe_device *vpfe_dev) | |
1803 | { | |
1804 | struct vpfe_config *vpfe_cfg = vpfe_dev->cfg; | |
1805 | int ret = -ENOENT; | |
1806 | ||
1807 | vpfe_cfg->vpssclk = clk_get(vpfe_dev->pdev, "vpss_master"); | |
1808 | if (NULL == vpfe_cfg->vpssclk) { | |
1809 | v4l2_err(vpfe_dev->pdev->driver, "No clock defined for" | |
1810 | "vpss_master\n"); | |
1811 | return ret; | |
1812 | } | |
1813 | ||
1814 | if (clk_enable(vpfe_cfg->vpssclk)) { | |
1815 | v4l2_err(vpfe_dev->pdev->driver, | |
1816 | "vpfe vpss master clock not enabled\n"); | |
1817 | goto out; | |
1818 | } | |
1819 | v4l2_info(vpfe_dev->pdev->driver, | |
1820 | "vpfe vpss master clock enabled\n"); | |
1821 | ||
1822 | vpfe_cfg->slaveclk = clk_get(vpfe_dev->pdev, "vpss_slave"); | |
1823 | if (NULL == vpfe_cfg->slaveclk) { | |
1824 | v4l2_err(vpfe_dev->pdev->driver, | |
1825 | "No clock defined for vpss slave\n"); | |
1826 | goto out; | |
1827 | } | |
1828 | ||
1829 | if (clk_enable(vpfe_cfg->slaveclk)) { | |
1830 | v4l2_err(vpfe_dev->pdev->driver, | |
1831 | "vpfe vpss slave clock not enabled\n"); | |
1832 | goto out; | |
1833 | } | |
1834 | v4l2_info(vpfe_dev->pdev->driver, "vpfe vpss slave clock enabled\n"); | |
1835 | return 0; | |
1836 | out: | |
1837 | if (vpfe_cfg->vpssclk) | |
1838 | clk_put(vpfe_cfg->vpssclk); | |
1839 | if (vpfe_cfg->slaveclk) | |
1840 | clk_put(vpfe_cfg->slaveclk); | |
1841 | ||
1842 | return -1; | |
1843 | } | |
1844 | ||
1845 | /* | |
1846 | * vpfe_probe : This function creates device entries by register | |
1847 | * itself to the V4L2 driver and initializes fields of each | |
1848 | * device objects | |
1849 | */ | |
1850 | static __init int vpfe_probe(struct platform_device *pdev) | |
1851 | { | |
1852 | struct vpfe_subdev_info *sdinfo; | |
1853 | struct vpfe_config *vpfe_cfg; | |
1854 | struct resource *res1; | |
1855 | struct vpfe_device *vpfe_dev; | |
1856 | struct i2c_adapter *i2c_adap; | |
1857 | struct video_device *vfd; | |
1858 | int ret = -ENOMEM, i, j; | |
1859 | int num_subdevs = 0; | |
1860 | ||
1861 | /* Get the pointer to the device object */ | |
1862 | vpfe_dev = vpfe_initialize(); | |
1863 | ||
1864 | if (!vpfe_dev) { | |
1865 | v4l2_err(pdev->dev.driver, | |
1866 | "Failed to allocate memory for vpfe_dev\n"); | |
1867 | return ret; | |
1868 | } | |
1869 | ||
1870 | vpfe_dev->pdev = &pdev->dev; | |
1871 | ||
1872 | if (NULL == pdev->dev.platform_data) { | |
1873 | v4l2_err(pdev->dev.driver, "Unable to get vpfe config\n"); | |
1874 | ret = -ENOENT; | |
1875 | goto probe_free_dev_mem; | |
1876 | } | |
1877 | ||
1878 | vpfe_cfg = pdev->dev.platform_data; | |
1879 | vpfe_dev->cfg = vpfe_cfg; | |
1880 | if (NULL == vpfe_cfg->ccdc || | |
1881 | NULL == vpfe_cfg->card_name || | |
1882 | NULL == vpfe_cfg->sub_devs) { | |
1883 | v4l2_err(pdev->dev.driver, "null ptr in vpfe_cfg\n"); | |
1884 | ret = -ENOENT; | |
1885 | goto probe_free_dev_mem; | |
1886 | } | |
1887 | ||
1888 | /* enable vpss clocks */ | |
1889 | ret = vpfe_enable_clock(vpfe_dev); | |
1890 | if (ret) | |
1891 | goto probe_free_dev_mem; | |
1892 | ||
1893 | mutex_lock(&ccdc_lock); | |
1894 | /* Allocate memory for ccdc configuration */ | |
1895 | ccdc_cfg = kmalloc(sizeof(struct ccdc_config), GFP_KERNEL); | |
1896 | if (NULL == ccdc_cfg) { | |
1897 | v4l2_err(pdev->dev.driver, | |
1898 | "Memory allocation failed for ccdc_cfg\n"); | |
1899 | goto probe_disable_clock; | |
1900 | } | |
1901 | ||
1902 | strncpy(ccdc_cfg->name, vpfe_cfg->ccdc, 32); | |
1903 | /* Get VINT0 irq resource */ | |
1904 | res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 0); | |
1905 | if (!res1) { | |
1906 | v4l2_err(pdev->dev.driver, | |
1907 | "Unable to get interrupt for VINT0\n"); | |
1908 | ret = -ENOENT; | |
1909 | goto probe_disable_clock; | |
1910 | } | |
1911 | vpfe_dev->ccdc_irq0 = res1->start; | |
1912 | ||
1913 | /* Get VINT1 irq resource */ | |
1914 | res1 = platform_get_resource(pdev, | |
1915 | IORESOURCE_IRQ, 1); | |
1916 | if (!res1) { | |
1917 | v4l2_err(pdev->dev.driver, | |
1918 | "Unable to get interrupt for VINT1\n"); | |
1919 | ret = -ENOENT; | |
1920 | goto probe_disable_clock; | |
1921 | } | |
1922 | vpfe_dev->ccdc_irq1 = res1->start; | |
1923 | ||
1924 | /* Get address base of CCDC */ | |
1925 | res1 = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
1926 | if (!res1) { | |
1927 | v4l2_err(pdev->dev.driver, | |
1928 | "Unable to get register address map\n"); | |
1929 | ret = -ENOENT; | |
1930 | goto probe_disable_clock; | |
1931 | } | |
1932 | ||
1933 | ccdc_cfg->ccdc_addr_size = res1->end - res1->start + 1; | |
1934 | if (!request_mem_region(res1->start, ccdc_cfg->ccdc_addr_size, | |
1935 | pdev->dev.driver->name)) { | |
1936 | v4l2_err(pdev->dev.driver, | |
1937 | "Failed request_mem_region for ccdc base\n"); | |
1938 | ret = -ENXIO; | |
1939 | goto probe_disable_clock; | |
1940 | } | |
1941 | ccdc_cfg->ccdc_addr = ioremap_nocache(res1->start, | |
1942 | ccdc_cfg->ccdc_addr_size); | |
1943 | if (!ccdc_cfg->ccdc_addr) { | |
1944 | v4l2_err(pdev->dev.driver, "Unable to ioremap ccdc addr\n"); | |
1945 | ret = -ENXIO; | |
1946 | goto probe_out_release_mem1; | |
1947 | } | |
1948 | ||
1949 | ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, IRQF_DISABLED, | |
1950 | "vpfe_capture0", vpfe_dev); | |
1951 | ||
1952 | if (0 != ret) { | |
1953 | v4l2_err(pdev->dev.driver, "Unable to request interrupt\n"); | |
1954 | goto probe_out_unmap1; | |
1955 | } | |
1956 | ||
1957 | /* Allocate memory for video device */ | |
1958 | vfd = video_device_alloc(); | |
1959 | if (NULL == vfd) { | |
1960 | ret = -ENOMEM; | |
1961 | v4l2_err(pdev->dev.driver, | |
1962 | "Unable to alloc video device\n"); | |
1963 | goto probe_out_release_irq; | |
1964 | } | |
1965 | ||
1966 | /* Initialize field of video device */ | |
1967 | vfd->release = video_device_release; | |
1968 | vfd->fops = &vpfe_fops; | |
1969 | vfd->ioctl_ops = &vpfe_ioctl_ops; | |
1970 | vfd->minor = -1; | |
1971 | vfd->tvnorms = 0; | |
1972 | vfd->current_norm = V4L2_STD_PAL; | |
1973 | vfd->v4l2_dev = &vpfe_dev->v4l2_dev; | |
1974 | snprintf(vfd->name, sizeof(vfd->name), | |
1975 | "%s_V%d.%d.%d", | |
1976 | CAPTURE_DRV_NAME, | |
1977 | (VPFE_CAPTURE_VERSION_CODE >> 16) & 0xff, | |
1978 | (VPFE_CAPTURE_VERSION_CODE >> 8) & 0xff, | |
1979 | (VPFE_CAPTURE_VERSION_CODE) & 0xff); | |
1980 | /* Set video_dev to the video device */ | |
1981 | vpfe_dev->video_dev = vfd; | |
1982 | ||
1983 | ret = v4l2_device_register(&pdev->dev, &vpfe_dev->v4l2_dev); | |
1984 | if (ret) { | |
1985 | v4l2_err(pdev->dev.driver, | |
1986 | "Unable to register v4l2 device.\n"); | |
1987 | goto probe_out_video_release; | |
1988 | } | |
1989 | v4l2_info(&vpfe_dev->v4l2_dev, "v4l2 device registered\n"); | |
1990 | spin_lock_init(&vpfe_dev->irqlock); | |
1991 | spin_lock_init(&vpfe_dev->dma_queue_lock); | |
1992 | mutex_init(&vpfe_dev->lock); | |
1993 | ||
1994 | /* Initialize field of the device objects */ | |
1995 | vpfe_dev->numbuffers = config_params.numbuffers; | |
1996 | ||
1997 | /* Initialize prio member of device object */ | |
1998 | v4l2_prio_init(&vpfe_dev->prio); | |
1999 | /* register video device */ | |
2000 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
2001 | "trying to register vpfe device.\n"); | |
2002 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
2003 | "video_dev=%x\n", (int)&vpfe_dev->video_dev); | |
2004 | vpfe_dev->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
2005 | ret = video_register_device(vpfe_dev->video_dev, | |
2006 | VFL_TYPE_GRABBER, -1); | |
2007 | ||
2008 | if (ret) { | |
2009 | v4l2_err(pdev->dev.driver, | |
2010 | "Unable to register video device.\n"); | |
2011 | goto probe_out_v4l2_unregister; | |
2012 | } | |
2013 | ||
2014 | v4l2_info(&vpfe_dev->v4l2_dev, "video device registered\n"); | |
2015 | /* set the driver data in platform device */ | |
2016 | platform_set_drvdata(pdev, vpfe_dev); | |
2017 | /* set driver private data */ | |
2018 | video_set_drvdata(vpfe_dev->video_dev, vpfe_dev); | |
14cbaafe | 2019 | i2c_adap = i2c_get_adapter(vpfe_cfg->i2c_adapter_id); |
7da8a6cb MK |
2020 | num_subdevs = vpfe_cfg->num_subdevs; |
2021 | vpfe_dev->sd = kmalloc(sizeof(struct v4l2_subdev *) * num_subdevs, | |
2022 | GFP_KERNEL); | |
2023 | if (NULL == vpfe_dev->sd) { | |
2024 | v4l2_err(&vpfe_dev->v4l2_dev, | |
2025 | "unable to allocate memory for subdevice pointers\n"); | |
2026 | ret = -ENOMEM; | |
2027 | goto probe_out_video_unregister; | |
2028 | } | |
2029 | ||
2030 | for (i = 0; i < num_subdevs; i++) { | |
2031 | struct v4l2_input *inps; | |
2032 | ||
2033 | sdinfo = &vpfe_cfg->sub_devs[i]; | |
2034 | ||
2035 | /* Load up the subdevice */ | |
2036 | vpfe_dev->sd[i] = | |
2037 | v4l2_i2c_new_subdev_board(&vpfe_dev->v4l2_dev, | |
2038 | i2c_adap, | |
2039 | sdinfo->name, | |
2040 | &sdinfo->board_info, | |
2041 | NULL); | |
2042 | if (vpfe_dev->sd[i]) { | |
2043 | v4l2_info(&vpfe_dev->v4l2_dev, | |
2044 | "v4l2 sub device %s registered\n", | |
2045 | sdinfo->name); | |
2046 | vpfe_dev->sd[i]->grp_id = sdinfo->grp_id; | |
2047 | /* update tvnorms from the sub devices */ | |
2048 | for (j = 0; j < sdinfo->num_inputs; j++) { | |
2049 | inps = &sdinfo->inputs[j]; | |
2050 | vfd->tvnorms |= inps->std; | |
2051 | } | |
2052 | } else { | |
2053 | v4l2_info(&vpfe_dev->v4l2_dev, | |
2054 | "v4l2 sub device %s register fails\n", | |
2055 | sdinfo->name); | |
2056 | goto probe_sd_out; | |
2057 | } | |
2058 | } | |
2059 | ||
2060 | /* set first sub device as current one */ | |
2061 | vpfe_dev->current_subdev = &vpfe_cfg->sub_devs[0]; | |
2062 | ||
2063 | /* We have at least one sub device to work with */ | |
2064 | mutex_unlock(&ccdc_lock); | |
2065 | return 0; | |
2066 | ||
2067 | probe_sd_out: | |
2068 | kfree(vpfe_dev->sd); | |
2069 | probe_out_video_unregister: | |
2070 | video_unregister_device(vpfe_dev->video_dev); | |
2071 | probe_out_v4l2_unregister: | |
2072 | v4l2_device_unregister(&vpfe_dev->v4l2_dev); | |
2073 | probe_out_video_release: | |
2074 | if (vpfe_dev->video_dev->minor == -1) | |
2075 | video_device_release(vpfe_dev->video_dev); | |
2076 | probe_out_release_irq: | |
2077 | free_irq(vpfe_dev->ccdc_irq0, vpfe_dev); | |
2078 | probe_out_unmap1: | |
2079 | iounmap(ccdc_cfg->ccdc_addr); | |
2080 | probe_out_release_mem1: | |
2081 | release_mem_region(res1->start, res1->end - res1->start + 1); | |
2082 | probe_disable_clock: | |
2083 | vpfe_disable_clock(vpfe_dev); | |
2084 | mutex_unlock(&ccdc_lock); | |
2085 | kfree(ccdc_cfg); | |
2086 | probe_free_dev_mem: | |
2087 | kfree(vpfe_dev); | |
2088 | return ret; | |
2089 | } | |
2090 | ||
2091 | /* | |
2092 | * vpfe_remove : It un-register device from V4L2 driver | |
2093 | */ | |
2094 | static int vpfe_remove(struct platform_device *pdev) | |
2095 | { | |
2096 | struct vpfe_device *vpfe_dev = platform_get_drvdata(pdev); | |
2097 | struct resource *res; | |
2098 | ||
2099 | v4l2_info(pdev->dev.driver, "vpfe_remove\n"); | |
2100 | ||
2101 | free_irq(vpfe_dev->ccdc_irq0, vpfe_dev); | |
2102 | kfree(vpfe_dev->sd); | |
2103 | v4l2_device_unregister(&vpfe_dev->v4l2_dev); | |
2104 | video_unregister_device(vpfe_dev->video_dev); | |
2105 | mutex_lock(&ccdc_lock); | |
2106 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
2107 | release_mem_region(res->start, res->end - res->start + 1); | |
2108 | iounmap(ccdc_cfg->ccdc_addr); | |
2109 | mutex_unlock(&ccdc_lock); | |
2110 | vpfe_disable_clock(vpfe_dev); | |
2111 | kfree(vpfe_dev); | |
2112 | kfree(ccdc_cfg); | |
2113 | return 0; | |
2114 | } | |
2115 | ||
2116 | static int | |
2117 | vpfe_suspend(struct device *dev) | |
2118 | { | |
2119 | /* add suspend code here later */ | |
2120 | return -1; | |
2121 | } | |
2122 | ||
2123 | static int | |
2124 | vpfe_resume(struct device *dev) | |
2125 | { | |
2126 | /* add resume code here later */ | |
2127 | return -1; | |
2128 | } | |
2129 | ||
47145210 | 2130 | static const struct dev_pm_ops vpfe_dev_pm_ops = { |
7da8a6cb MK |
2131 | .suspend = vpfe_suspend, |
2132 | .resume = vpfe_resume, | |
2133 | }; | |
2134 | ||
2135 | static struct platform_driver vpfe_driver = { | |
2136 | .driver = { | |
2137 | .name = CAPTURE_DRV_NAME, | |
2138 | .owner = THIS_MODULE, | |
2139 | .pm = &vpfe_dev_pm_ops, | |
2140 | }, | |
2141 | .probe = vpfe_probe, | |
2142 | .remove = __devexit_p(vpfe_remove), | |
2143 | }; | |
2144 | ||
2145 | static __init int vpfe_init(void) | |
2146 | { | |
2147 | printk(KERN_NOTICE "vpfe_init\n"); | |
2148 | /* Register driver to the kernel */ | |
2149 | return platform_driver_register(&vpfe_driver); | |
2150 | } | |
2151 | ||
2152 | /* | |
2153 | * vpfe_cleanup : This function un-registers device driver | |
2154 | */ | |
2155 | static void vpfe_cleanup(void) | |
2156 | { | |
2157 | platform_driver_unregister(&vpfe_driver); | |
2158 | } | |
2159 | ||
2160 | module_init(vpfe_init); | |
2161 | module_exit(vpfe_cleanup); |