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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> | |
5a0e3ad6 | 70 | #include <linux/slab.h> |
7da8a6cb MK |
71 | #include <linux/init.h> |
72 | #include <linux/platform_device.h> | |
73 | #include <linux/interrupt.h> | |
7da8a6cb MK |
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]; | |
7da8a6cb MK |
111 | }; |
112 | ||
113 | /* data structures */ | |
114 | static struct vpfe_config_params config_params = { | |
115 | .min_numbuffers = 3, | |
116 | .numbuffers = 3, | |
117 | .min_bufsize = 720 * 480 * 2, | |
118 | .device_bufsize = 720 * 576 * 2, | |
119 | }; | |
120 | ||
121 | /* ccdc device registered */ | |
122 | static struct ccdc_hw_device *ccdc_dev; | |
123 | /* lock for accessing ccdc information */ | |
124 | static DEFINE_MUTEX(ccdc_lock); | |
125 | /* ccdc configuration */ | |
126 | static struct ccdc_config *ccdc_cfg; | |
127 | ||
128 | const struct vpfe_standard vpfe_standards[] = { | |
129 | {V4L2_STD_525_60, 720, 480, {11, 10}, 1}, | |
130 | {V4L2_STD_625_50, 720, 576, {54, 59}, 1}, | |
131 | }; | |
132 | ||
133 | /* Used when raw Bayer image from ccdc is directly captured to SDRAM */ | |
134 | static const struct vpfe_pixel_format vpfe_pix_fmts[] = { | |
135 | { | |
136 | .fmtdesc = { | |
137 | .index = 0, | |
138 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
139 | .description = "Bayer GrRBGb 8bit A-Law compr.", | |
140 | .pixelformat = V4L2_PIX_FMT_SBGGR8, | |
141 | }, | |
142 | .bpp = 1, | |
143 | }, | |
144 | { | |
145 | .fmtdesc = { | |
146 | .index = 1, | |
147 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
148 | .description = "Bayer GrRBGb - 16bit", | |
149 | .pixelformat = V4L2_PIX_FMT_SBGGR16, | |
150 | }, | |
151 | .bpp = 2, | |
152 | }, | |
153 | { | |
154 | .fmtdesc = { | |
155 | .index = 2, | |
156 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
157 | .description = "Bayer GrRBGb 8bit DPCM compr.", | |
158 | .pixelformat = V4L2_PIX_FMT_SGRBG10DPCM8, | |
159 | }, | |
160 | .bpp = 1, | |
161 | }, | |
162 | { | |
163 | .fmtdesc = { | |
164 | .index = 3, | |
165 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
166 | .description = "YCbCr 4:2:2 Interleaved UYVY", | |
167 | .pixelformat = V4L2_PIX_FMT_UYVY, | |
168 | }, | |
169 | .bpp = 2, | |
170 | }, | |
171 | { | |
172 | .fmtdesc = { | |
173 | .index = 4, | |
174 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
175 | .description = "YCbCr 4:2:2 Interleaved YUYV", | |
176 | .pixelformat = V4L2_PIX_FMT_YUYV, | |
177 | }, | |
178 | .bpp = 2, | |
179 | }, | |
180 | { | |
181 | .fmtdesc = { | |
182 | .index = 5, | |
183 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
184 | .description = "Y/CbCr 4:2:0 - Semi planar", | |
185 | .pixelformat = V4L2_PIX_FMT_NV12, | |
186 | }, | |
187 | .bpp = 1, | |
188 | }, | |
189 | }; | |
190 | ||
191 | /* | |
192 | * vpfe_lookup_pix_format() | |
193 | * lookup an entry in the vpfe pix format table based on pix_format | |
194 | */ | |
195 | static const struct vpfe_pixel_format *vpfe_lookup_pix_format(u32 pix_format) | |
196 | { | |
197 | int i; | |
198 | ||
199 | for (i = 0; i < ARRAY_SIZE(vpfe_pix_fmts); i++) { | |
200 | if (pix_format == vpfe_pix_fmts[i].fmtdesc.pixelformat) | |
201 | return &vpfe_pix_fmts[i]; | |
202 | } | |
203 | return NULL; | |
204 | } | |
205 | ||
206 | /* | |
207 | * vpfe_register_ccdc_device. CCDC module calls this to | |
208 | * register with vpfe capture | |
209 | */ | |
210 | int vpfe_register_ccdc_device(struct ccdc_hw_device *dev) | |
211 | { | |
212 | int ret = 0; | |
213 | printk(KERN_NOTICE "vpfe_register_ccdc_device: %s\n", dev->name); | |
214 | ||
215 | BUG_ON(!dev->hw_ops.open); | |
216 | BUG_ON(!dev->hw_ops.enable); | |
217 | BUG_ON(!dev->hw_ops.set_hw_if_params); | |
218 | BUG_ON(!dev->hw_ops.configure); | |
219 | BUG_ON(!dev->hw_ops.set_buftype); | |
220 | BUG_ON(!dev->hw_ops.get_buftype); | |
221 | BUG_ON(!dev->hw_ops.enum_pix); | |
222 | BUG_ON(!dev->hw_ops.set_frame_format); | |
223 | BUG_ON(!dev->hw_ops.get_frame_format); | |
224 | BUG_ON(!dev->hw_ops.get_pixel_format); | |
225 | BUG_ON(!dev->hw_ops.set_pixel_format); | |
226 | BUG_ON(!dev->hw_ops.set_params); | |
227 | BUG_ON(!dev->hw_ops.set_image_window); | |
228 | BUG_ON(!dev->hw_ops.get_image_window); | |
229 | BUG_ON(!dev->hw_ops.get_line_length); | |
7da8a6cb MK |
230 | BUG_ON(!dev->hw_ops.getfid); |
231 | ||
232 | mutex_lock(&ccdc_lock); | |
233 | if (NULL == ccdc_cfg) { | |
234 | /* | |
235 | * TODO. Will this ever happen? if so, we need to fix it. | |
236 | * Proabably we need to add the request to a linked list and | |
237 | * walk through it during vpfe probe | |
238 | */ | |
239 | printk(KERN_ERR "vpfe capture not initialized\n"); | |
51444ea3 | 240 | ret = -EFAULT; |
7da8a6cb MK |
241 | goto unlock; |
242 | } | |
243 | ||
244 | if (strcmp(dev->name, ccdc_cfg->name)) { | |
245 | /* ignore this ccdc */ | |
51444ea3 | 246 | ret = -EINVAL; |
7da8a6cb MK |
247 | goto unlock; |
248 | } | |
249 | ||
250 | if (ccdc_dev) { | |
251 | printk(KERN_ERR "ccdc already registered\n"); | |
51444ea3 | 252 | ret = -EINVAL; |
7da8a6cb MK |
253 | goto unlock; |
254 | } | |
255 | ||
256 | ccdc_dev = dev; | |
7da8a6cb MK |
257 | unlock: |
258 | mutex_unlock(&ccdc_lock); | |
259 | return ret; | |
260 | } | |
261 | EXPORT_SYMBOL(vpfe_register_ccdc_device); | |
262 | ||
263 | /* | |
264 | * vpfe_unregister_ccdc_device. CCDC module calls this to | |
265 | * unregister with vpfe capture | |
266 | */ | |
267 | void vpfe_unregister_ccdc_device(struct ccdc_hw_device *dev) | |
268 | { | |
269 | if (NULL == dev) { | |
270 | printk(KERN_ERR "invalid ccdc device ptr\n"); | |
271 | return; | |
272 | } | |
273 | ||
274 | printk(KERN_NOTICE "vpfe_unregister_ccdc_device, dev->name = %s\n", | |
275 | dev->name); | |
276 | ||
277 | if (strcmp(dev->name, ccdc_cfg->name)) { | |
278 | /* ignore this ccdc */ | |
279 | return; | |
280 | } | |
281 | ||
282 | mutex_lock(&ccdc_lock); | |
283 | ccdc_dev = NULL; | |
284 | mutex_unlock(&ccdc_lock); | |
285 | return; | |
286 | } | |
287 | EXPORT_SYMBOL(vpfe_unregister_ccdc_device); | |
288 | ||
289 | /* | |
290 | * vpfe_get_ccdc_image_format - Get image parameters based on CCDC settings | |
291 | */ | |
292 | static int vpfe_get_ccdc_image_format(struct vpfe_device *vpfe_dev, | |
293 | struct v4l2_format *f) | |
294 | { | |
295 | struct v4l2_rect image_win; | |
296 | enum ccdc_buftype buf_type; | |
297 | enum ccdc_frmfmt frm_fmt; | |
298 | ||
299 | memset(f, 0, sizeof(*f)); | |
300 | f->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
301 | ccdc_dev->hw_ops.get_image_window(&image_win); | |
302 | f->fmt.pix.width = image_win.width; | |
303 | f->fmt.pix.height = image_win.height; | |
304 | f->fmt.pix.bytesperline = ccdc_dev->hw_ops.get_line_length(); | |
305 | f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * | |
306 | f->fmt.pix.height; | |
307 | buf_type = ccdc_dev->hw_ops.get_buftype(); | |
308 | f->fmt.pix.pixelformat = ccdc_dev->hw_ops.get_pixel_format(); | |
309 | frm_fmt = ccdc_dev->hw_ops.get_frame_format(); | |
310 | if (frm_fmt == CCDC_FRMFMT_PROGRESSIVE) | |
311 | f->fmt.pix.field = V4L2_FIELD_NONE; | |
312 | else if (frm_fmt == CCDC_FRMFMT_INTERLACED) { | |
313 | if (buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED) | |
314 | f->fmt.pix.field = V4L2_FIELD_INTERLACED; | |
315 | else if (buf_type == CCDC_BUFTYPE_FLD_SEPARATED) | |
316 | f->fmt.pix.field = V4L2_FIELD_SEQ_TB; | |
317 | else { | |
318 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf_type\n"); | |
319 | return -EINVAL; | |
320 | } | |
321 | } else { | |
322 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid frm_fmt\n"); | |
323 | return -EINVAL; | |
324 | } | |
325 | return 0; | |
326 | } | |
327 | ||
328 | /* | |
329 | * vpfe_config_ccdc_image_format() | |
330 | * For a pix format, configure ccdc to setup the capture | |
331 | */ | |
332 | static int vpfe_config_ccdc_image_format(struct vpfe_device *vpfe_dev) | |
333 | { | |
334 | enum ccdc_frmfmt frm_fmt = CCDC_FRMFMT_INTERLACED; | |
335 | int ret = 0; | |
336 | ||
337 | if (ccdc_dev->hw_ops.set_pixel_format( | |
338 | vpfe_dev->fmt.fmt.pix.pixelformat) < 0) { | |
339 | v4l2_err(&vpfe_dev->v4l2_dev, | |
340 | "couldn't set pix format in ccdc\n"); | |
341 | return -EINVAL; | |
342 | } | |
343 | /* configure the image window */ | |
344 | ccdc_dev->hw_ops.set_image_window(&vpfe_dev->crop); | |
345 | ||
346 | switch (vpfe_dev->fmt.fmt.pix.field) { | |
347 | case V4L2_FIELD_INTERLACED: | |
348 | /* do nothing, since it is default */ | |
349 | ret = ccdc_dev->hw_ops.set_buftype( | |
350 | CCDC_BUFTYPE_FLD_INTERLEAVED); | |
351 | break; | |
352 | case V4L2_FIELD_NONE: | |
353 | frm_fmt = CCDC_FRMFMT_PROGRESSIVE; | |
354 | /* buffer type only applicable for interlaced scan */ | |
355 | break; | |
356 | case V4L2_FIELD_SEQ_TB: | |
357 | ret = ccdc_dev->hw_ops.set_buftype( | |
358 | CCDC_BUFTYPE_FLD_SEPARATED); | |
359 | break; | |
360 | default: | |
361 | return -EINVAL; | |
362 | } | |
363 | ||
364 | /* set the frame format */ | |
365 | if (!ret) | |
366 | ret = ccdc_dev->hw_ops.set_frame_format(frm_fmt); | |
367 | return ret; | |
368 | } | |
369 | /* | |
370 | * vpfe_config_image_format() | |
371 | * For a given standard, this functions sets up the default | |
372 | * pix format & crop values in the vpfe device and ccdc. It first | |
373 | * starts with defaults based values from the standard table. | |
374 | * It then checks if sub device support g_fmt and then override the | |
375 | * values based on that.Sets crop values to match with scan resolution | |
376 | * starting at 0,0. It calls vpfe_config_ccdc_image_format() set the | |
377 | * values in ccdc | |
378 | */ | |
379 | static int vpfe_config_image_format(struct vpfe_device *vpfe_dev, | |
380 | const v4l2_std_id *std_id) | |
381 | { | |
382 | struct vpfe_subdev_info *sdinfo = vpfe_dev->current_subdev; | |
383 | int i, ret = 0; | |
384 | ||
385 | for (i = 0; i < ARRAY_SIZE(vpfe_standards); i++) { | |
386 | if (vpfe_standards[i].std_id & *std_id) { | |
387 | vpfe_dev->std_info.active_pixels = | |
388 | vpfe_standards[i].width; | |
389 | vpfe_dev->std_info.active_lines = | |
390 | vpfe_standards[i].height; | |
391 | vpfe_dev->std_info.frame_format = | |
392 | vpfe_standards[i].frame_format; | |
393 | vpfe_dev->std_index = i; | |
394 | break; | |
395 | } | |
396 | } | |
397 | ||
398 | if (i == ARRAY_SIZE(vpfe_standards)) { | |
399 | v4l2_err(&vpfe_dev->v4l2_dev, "standard not supported\n"); | |
400 | return -EINVAL; | |
401 | } | |
402 | ||
403 | vpfe_dev->crop.top = 0; | |
404 | vpfe_dev->crop.left = 0; | |
405 | vpfe_dev->crop.width = vpfe_dev->std_info.active_pixels; | |
406 | vpfe_dev->crop.height = vpfe_dev->std_info.active_lines; | |
407 | vpfe_dev->fmt.fmt.pix.width = vpfe_dev->crop.width; | |
408 | vpfe_dev->fmt.fmt.pix.height = vpfe_dev->crop.height; | |
409 | ||
410 | /* first field and frame format based on standard frame format */ | |
411 | if (vpfe_dev->std_info.frame_format) { | |
412 | vpfe_dev->fmt.fmt.pix.field = V4L2_FIELD_INTERLACED; | |
413 | /* assume V4L2_PIX_FMT_UYVY as default */ | |
414 | vpfe_dev->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; | |
415 | } else { | |
416 | vpfe_dev->fmt.fmt.pix.field = V4L2_FIELD_NONE; | |
417 | /* assume V4L2_PIX_FMT_SBGGR8 */ | |
418 | vpfe_dev->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_SBGGR8; | |
419 | } | |
420 | ||
421 | /* if sub device supports g_fmt, override the defaults */ | |
422 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, | |
423 | sdinfo->grp_id, video, g_fmt, &vpfe_dev->fmt); | |
424 | ||
425 | if (ret && ret != -ENOIOCTLCMD) { | |
426 | v4l2_err(&vpfe_dev->v4l2_dev, | |
427 | "error in getting g_fmt from sub device\n"); | |
428 | return ret; | |
429 | } | |
430 | ||
431 | /* Sets the values in CCDC */ | |
432 | ret = vpfe_config_ccdc_image_format(vpfe_dev); | |
433 | if (ret) | |
434 | return ret; | |
435 | ||
436 | /* Update the values of sizeimage and bytesperline */ | |
437 | if (!ret) { | |
438 | vpfe_dev->fmt.fmt.pix.bytesperline = | |
439 | ccdc_dev->hw_ops.get_line_length(); | |
440 | vpfe_dev->fmt.fmt.pix.sizeimage = | |
441 | vpfe_dev->fmt.fmt.pix.bytesperline * | |
442 | vpfe_dev->fmt.fmt.pix.height; | |
443 | } | |
444 | return ret; | |
445 | } | |
446 | ||
447 | static int vpfe_initialize_device(struct vpfe_device *vpfe_dev) | |
448 | { | |
449 | int ret = 0; | |
450 | ||
451 | /* set first input of current subdevice as the current input */ | |
452 | vpfe_dev->current_input = 0; | |
453 | ||
454 | /* set default standard */ | |
455 | vpfe_dev->std_index = 0; | |
456 | ||
457 | /* Configure the default format information */ | |
458 | ret = vpfe_config_image_format(vpfe_dev, | |
459 | &vpfe_standards[vpfe_dev->std_index].std_id); | |
460 | if (ret) | |
461 | return ret; | |
462 | ||
463 | /* now open the ccdc device to initialize it */ | |
464 | mutex_lock(&ccdc_lock); | |
465 | if (NULL == ccdc_dev) { | |
466 | v4l2_err(&vpfe_dev->v4l2_dev, "ccdc device not registered\n"); | |
467 | ret = -ENODEV; | |
468 | goto unlock; | |
469 | } | |
470 | ||
471 | if (!try_module_get(ccdc_dev->owner)) { | |
472 | v4l2_err(&vpfe_dev->v4l2_dev, "Couldn't lock ccdc module\n"); | |
473 | ret = -ENODEV; | |
474 | goto unlock; | |
475 | } | |
476 | ret = ccdc_dev->hw_ops.open(vpfe_dev->pdev); | |
477 | if (!ret) | |
478 | vpfe_dev->initialized = 1; | |
479 | unlock: | |
480 | mutex_unlock(&ccdc_lock); | |
481 | return ret; | |
482 | } | |
483 | ||
484 | /* | |
485 | * vpfe_open : It creates object of file handle structure and | |
486 | * stores it in private_data member of filepointer | |
487 | */ | |
488 | static int vpfe_open(struct file *file) | |
489 | { | |
490 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
491 | struct vpfe_fh *fh; | |
492 | ||
493 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_open\n"); | |
494 | ||
495 | if (!vpfe_dev->cfg->num_subdevs) { | |
496 | v4l2_err(&vpfe_dev->v4l2_dev, "No decoder registered\n"); | |
497 | return -ENODEV; | |
498 | } | |
499 | ||
500 | /* Allocate memory for the file handle object */ | |
501 | fh = kmalloc(sizeof(struct vpfe_fh), GFP_KERNEL); | |
502 | if (NULL == fh) { | |
503 | v4l2_err(&vpfe_dev->v4l2_dev, | |
504 | "unable to allocate memory for file handle object\n"); | |
505 | return -ENOMEM; | |
506 | } | |
507 | /* store pointer to fh in private_data member of file */ | |
508 | file->private_data = fh; | |
509 | fh->vpfe_dev = vpfe_dev; | |
510 | mutex_lock(&vpfe_dev->lock); | |
511 | /* If decoder is not initialized. initialize it */ | |
512 | if (!vpfe_dev->initialized) { | |
513 | if (vpfe_initialize_device(vpfe_dev)) { | |
514 | mutex_unlock(&vpfe_dev->lock); | |
515 | return -ENODEV; | |
516 | } | |
517 | } | |
518 | /* Increment device usrs counter */ | |
519 | vpfe_dev->usrs++; | |
520 | /* Set io_allowed member to false */ | |
521 | fh->io_allowed = 0; | |
522 | /* Initialize priority of this instance to default priority */ | |
523 | fh->prio = V4L2_PRIORITY_UNSET; | |
524 | v4l2_prio_open(&vpfe_dev->prio, &fh->prio); | |
525 | mutex_unlock(&vpfe_dev->lock); | |
526 | return 0; | |
527 | } | |
528 | ||
529 | static void vpfe_schedule_next_buffer(struct vpfe_device *vpfe_dev) | |
530 | { | |
531 | unsigned long addr; | |
532 | ||
533 | vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next, | |
534 | struct videobuf_buffer, queue); | |
535 | list_del(&vpfe_dev->next_frm->queue); | |
536 | vpfe_dev->next_frm->state = VIDEOBUF_ACTIVE; | |
537 | addr = videobuf_to_dma_contig(vpfe_dev->next_frm); | |
538 | ccdc_dev->hw_ops.setfbaddr(addr); | |
539 | } | |
540 | ||
541 | static void vpfe_process_buffer_complete(struct vpfe_device *vpfe_dev) | |
542 | { | |
543 | struct timeval timevalue; | |
544 | ||
545 | do_gettimeofday(&timevalue); | |
546 | vpfe_dev->cur_frm->ts = timevalue; | |
547 | vpfe_dev->cur_frm->state = VIDEOBUF_DONE; | |
548 | vpfe_dev->cur_frm->size = vpfe_dev->fmt.fmt.pix.sizeimage; | |
549 | wake_up_interruptible(&vpfe_dev->cur_frm->done); | |
550 | vpfe_dev->cur_frm = vpfe_dev->next_frm; | |
551 | } | |
552 | ||
553 | /* ISR for VINT0*/ | |
554 | static irqreturn_t vpfe_isr(int irq, void *dev_id) | |
555 | { | |
556 | struct vpfe_device *vpfe_dev = dev_id; | |
557 | enum v4l2_field field; | |
558 | unsigned long addr; | |
559 | int fid; | |
560 | ||
561 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nStarting vpfe_isr...\n"); | |
562 | field = vpfe_dev->fmt.fmt.pix.field; | |
563 | ||
564 | /* if streaming not started, don't do anything */ | |
565 | if (!vpfe_dev->started) | |
566 | return IRQ_HANDLED; | |
567 | ||
568 | /* only for 6446 this will be applicable */ | |
569 | if (NULL != ccdc_dev->hw_ops.reset) | |
570 | ccdc_dev->hw_ops.reset(); | |
571 | ||
572 | if (field == V4L2_FIELD_NONE) { | |
573 | /* handle progressive frame capture */ | |
574 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
575 | "frame format is progressive...\n"); | |
576 | if (vpfe_dev->cur_frm != vpfe_dev->next_frm) | |
577 | vpfe_process_buffer_complete(vpfe_dev); | |
578 | return IRQ_HANDLED; | |
579 | } | |
580 | ||
581 | /* interlaced or TB capture check which field we are in hardware */ | |
582 | fid = ccdc_dev->hw_ops.getfid(); | |
583 | ||
584 | /* switch the software maintained field id */ | |
585 | vpfe_dev->field_id ^= 1; | |
586 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "field id = %x:%x.\n", | |
587 | fid, vpfe_dev->field_id); | |
588 | if (fid == vpfe_dev->field_id) { | |
589 | /* we are in-sync here,continue */ | |
590 | if (fid == 0) { | |
591 | /* | |
592 | * One frame is just being captured. If the next frame | |
593 | * is available, release the current frame and move on | |
594 | */ | |
595 | if (vpfe_dev->cur_frm != vpfe_dev->next_frm) | |
596 | vpfe_process_buffer_complete(vpfe_dev); | |
597 | /* | |
598 | * based on whether the two fields are stored | |
599 | * interleavely or separately in memory, reconfigure | |
600 | * the CCDC memory address | |
601 | */ | |
602 | if (field == V4L2_FIELD_SEQ_TB) { | |
603 | addr = | |
604 | videobuf_to_dma_contig(vpfe_dev->cur_frm); | |
605 | addr += vpfe_dev->field_off; | |
606 | ccdc_dev->hw_ops.setfbaddr(addr); | |
607 | } | |
608 | return IRQ_HANDLED; | |
609 | } | |
610 | /* | |
611 | * if one field is just being captured configure | |
612 | * the next frame get the next frame from the empty | |
613 | * queue if no frame is available hold on to the | |
614 | * current buffer | |
615 | */ | |
616 | spin_lock(&vpfe_dev->dma_queue_lock); | |
617 | if (!list_empty(&vpfe_dev->dma_queue) && | |
618 | vpfe_dev->cur_frm == vpfe_dev->next_frm) | |
619 | vpfe_schedule_next_buffer(vpfe_dev); | |
620 | spin_unlock(&vpfe_dev->dma_queue_lock); | |
621 | } else if (fid == 0) { | |
622 | /* | |
623 | * out of sync. Recover from any hardware out-of-sync. | |
624 | * May loose one frame | |
625 | */ | |
626 | vpfe_dev->field_id = fid; | |
627 | } | |
628 | return IRQ_HANDLED; | |
629 | } | |
630 | ||
631 | /* vdint1_isr - isr handler for VINT1 interrupt */ | |
632 | static irqreturn_t vdint1_isr(int irq, void *dev_id) | |
633 | { | |
634 | struct vpfe_device *vpfe_dev = dev_id; | |
635 | ||
636 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nInside vdint1_isr...\n"); | |
637 | ||
638 | /* if streaming not started, don't do anything */ | |
639 | if (!vpfe_dev->started) | |
640 | return IRQ_HANDLED; | |
641 | ||
642 | spin_lock(&vpfe_dev->dma_queue_lock); | |
643 | if ((vpfe_dev->fmt.fmt.pix.field == V4L2_FIELD_NONE) && | |
644 | !list_empty(&vpfe_dev->dma_queue) && | |
645 | vpfe_dev->cur_frm == vpfe_dev->next_frm) | |
646 | vpfe_schedule_next_buffer(vpfe_dev); | |
647 | spin_unlock(&vpfe_dev->dma_queue_lock); | |
648 | return IRQ_HANDLED; | |
649 | } | |
650 | ||
651 | static void vpfe_detach_irq(struct vpfe_device *vpfe_dev) | |
652 | { | |
653 | enum ccdc_frmfmt frame_format; | |
654 | ||
655 | frame_format = ccdc_dev->hw_ops.get_frame_format(); | |
656 | if (frame_format == CCDC_FRMFMT_PROGRESSIVE) | |
1ead696b | 657 | free_irq(vpfe_dev->ccdc_irq1, vpfe_dev); |
7da8a6cb MK |
658 | } |
659 | ||
660 | static int vpfe_attach_irq(struct vpfe_device *vpfe_dev) | |
661 | { | |
662 | enum ccdc_frmfmt frame_format; | |
663 | ||
664 | frame_format = ccdc_dev->hw_ops.get_frame_format(); | |
665 | if (frame_format == CCDC_FRMFMT_PROGRESSIVE) { | |
666 | return request_irq(vpfe_dev->ccdc_irq1, vdint1_isr, | |
667 | IRQF_DISABLED, "vpfe_capture1", | |
668 | vpfe_dev); | |
669 | } | |
670 | return 0; | |
671 | } | |
672 | ||
673 | /* vpfe_stop_ccdc_capture: stop streaming in ccdc/isif */ | |
674 | static void vpfe_stop_ccdc_capture(struct vpfe_device *vpfe_dev) | |
675 | { | |
676 | vpfe_dev->started = 0; | |
677 | ccdc_dev->hw_ops.enable(0); | |
678 | if (ccdc_dev->hw_ops.enable_out_to_sdram) | |
679 | ccdc_dev->hw_ops.enable_out_to_sdram(0); | |
680 | } | |
681 | ||
682 | /* | |
683 | * vpfe_release : This function deletes buffer queue, frees the | |
684 | * buffers and the vpfe file handle | |
685 | */ | |
686 | static int vpfe_release(struct file *file) | |
687 | { | |
688 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
689 | struct vpfe_fh *fh = file->private_data; | |
690 | struct vpfe_subdev_info *sdinfo; | |
691 | int ret; | |
692 | ||
693 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_release\n"); | |
694 | ||
695 | /* Get the device lock */ | |
696 | mutex_lock(&vpfe_dev->lock); | |
697 | /* if this instance is doing IO */ | |
698 | if (fh->io_allowed) { | |
699 | if (vpfe_dev->started) { | |
700 | sdinfo = vpfe_dev->current_subdev; | |
701 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, | |
702 | sdinfo->grp_id, | |
703 | video, s_stream, 0); | |
704 | if (ret && (ret != -ENOIOCTLCMD)) | |
705 | v4l2_err(&vpfe_dev->v4l2_dev, | |
706 | "stream off failed in subdev\n"); | |
707 | vpfe_stop_ccdc_capture(vpfe_dev); | |
708 | vpfe_detach_irq(vpfe_dev); | |
709 | videobuf_streamoff(&vpfe_dev->buffer_queue); | |
710 | } | |
711 | vpfe_dev->io_usrs = 0; | |
712 | vpfe_dev->numbuffers = config_params.numbuffers; | |
713 | } | |
714 | ||
715 | /* Decrement device usrs counter */ | |
716 | vpfe_dev->usrs--; | |
717 | /* Close the priority */ | |
718 | v4l2_prio_close(&vpfe_dev->prio, &fh->prio); | |
719 | /* If this is the last file handle */ | |
720 | if (!vpfe_dev->usrs) { | |
721 | vpfe_dev->initialized = 0; | |
722 | if (ccdc_dev->hw_ops.close) | |
723 | ccdc_dev->hw_ops.close(vpfe_dev->pdev); | |
724 | module_put(ccdc_dev->owner); | |
725 | } | |
726 | mutex_unlock(&vpfe_dev->lock); | |
727 | file->private_data = NULL; | |
728 | /* Free memory allocated to file handle object */ | |
729 | kfree(fh); | |
730 | return 0; | |
731 | } | |
732 | ||
733 | /* | |
734 | * vpfe_mmap : It is used to map kernel space buffers | |
735 | * into user spaces | |
736 | */ | |
737 | static int vpfe_mmap(struct file *file, struct vm_area_struct *vma) | |
738 | { | |
739 | /* Get the device object and file handle object */ | |
740 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
741 | ||
742 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_mmap\n"); | |
743 | ||
744 | return videobuf_mmap_mapper(&vpfe_dev->buffer_queue, vma); | |
745 | } | |
746 | ||
747 | /* | |
748 | * vpfe_poll: It is used for select/poll system call | |
749 | */ | |
750 | static unsigned int vpfe_poll(struct file *file, poll_table *wait) | |
751 | { | |
752 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
753 | ||
754 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_poll\n"); | |
755 | ||
756 | if (vpfe_dev->started) | |
757 | return videobuf_poll_stream(file, | |
758 | &vpfe_dev->buffer_queue, wait); | |
759 | return 0; | |
760 | } | |
761 | ||
762 | /* vpfe capture driver file operations */ | |
763 | static const struct v4l2_file_operations vpfe_fops = { | |
764 | .owner = THIS_MODULE, | |
765 | .open = vpfe_open, | |
766 | .release = vpfe_release, | |
767 | .unlocked_ioctl = video_ioctl2, | |
768 | .mmap = vpfe_mmap, | |
769 | .poll = vpfe_poll | |
770 | }; | |
771 | ||
772 | /* | |
773 | * vpfe_check_format() | |
774 | * This function adjust the input pixel format as per hardware | |
775 | * capabilities and update the same in pixfmt. | |
776 | * Following algorithm used :- | |
777 | * | |
778 | * If given pixformat is not in the vpfe list of pix formats or not | |
779 | * supported by the hardware, current value of pixformat in the device | |
780 | * is used | |
781 | * If given field is not supported, then current field is used. If field | |
782 | * is different from current, then it is matched with that from sub device. | |
783 | * Minimum height is 2 lines for interlaced or tb field and 1 line for | |
784 | * progressive. Maximum height is clamped to active active lines of scan | |
785 | * Minimum width is 32 bytes in memory and width is clamped to active | |
786 | * pixels of scan. | |
787 | * bytesperline is a multiple of 32. | |
788 | */ | |
789 | static const struct vpfe_pixel_format * | |
790 | vpfe_check_format(struct vpfe_device *vpfe_dev, | |
791 | struct v4l2_pix_format *pixfmt) | |
792 | { | |
793 | u32 min_height = 1, min_width = 32, max_width, max_height; | |
794 | const struct vpfe_pixel_format *vpfe_pix_fmt; | |
795 | u32 pix; | |
796 | int temp, found; | |
797 | ||
798 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
799 | if (NULL == vpfe_pix_fmt) { | |
800 | /* | |
801 | * use current pixel format in the vpfe device. We | |
802 | * will find this pix format in the table | |
803 | */ | |
804 | pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat; | |
805 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
806 | } | |
807 | ||
808 | /* check if hw supports it */ | |
809 | temp = 0; | |
810 | found = 0; | |
811 | while (ccdc_dev->hw_ops.enum_pix(&pix, temp) >= 0) { | |
812 | if (vpfe_pix_fmt->fmtdesc.pixelformat == pix) { | |
813 | found = 1; | |
814 | break; | |
815 | } | |
816 | temp++; | |
817 | } | |
818 | ||
819 | if (!found) { | |
820 | /* use current pixel format */ | |
821 | pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat; | |
822 | /* | |
823 | * Since this is currently used in the vpfe device, we | |
824 | * will find this pix format in the table | |
825 | */ | |
826 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
827 | } | |
828 | ||
829 | /* check what field format is supported */ | |
830 | if (pixfmt->field == V4L2_FIELD_ANY) { | |
831 | /* if field is any, use current value as default */ | |
832 | pixfmt->field = vpfe_dev->fmt.fmt.pix.field; | |
833 | } | |
834 | ||
835 | /* | |
836 | * if field is not same as current field in the vpfe device | |
837 | * try matching the field with the sub device field | |
838 | */ | |
839 | if (vpfe_dev->fmt.fmt.pix.field != pixfmt->field) { | |
840 | /* | |
841 | * If field value is not in the supported fields, use current | |
842 | * field used in the device as default | |
843 | */ | |
844 | switch (pixfmt->field) { | |
845 | case V4L2_FIELD_INTERLACED: | |
846 | case V4L2_FIELD_SEQ_TB: | |
847 | /* if sub device is supporting progressive, use that */ | |
848 | if (!vpfe_dev->std_info.frame_format) | |
849 | pixfmt->field = V4L2_FIELD_NONE; | |
850 | break; | |
851 | case V4L2_FIELD_NONE: | |
852 | if (vpfe_dev->std_info.frame_format) | |
853 | pixfmt->field = V4L2_FIELD_INTERLACED; | |
854 | break; | |
855 | ||
856 | default: | |
857 | /* use current field as default */ | |
858 | pixfmt->field = vpfe_dev->fmt.fmt.pix.field; | |
859 | break; | |
860 | } | |
861 | } | |
862 | ||
863 | /* Now adjust image resolutions supported */ | |
864 | if (pixfmt->field == V4L2_FIELD_INTERLACED || | |
865 | pixfmt->field == V4L2_FIELD_SEQ_TB) | |
866 | min_height = 2; | |
867 | ||
868 | max_width = vpfe_dev->std_info.active_pixels; | |
869 | max_height = vpfe_dev->std_info.active_lines; | |
870 | min_width /= vpfe_pix_fmt->bpp; | |
871 | ||
872 | v4l2_info(&vpfe_dev->v4l2_dev, "width = %d, height = %d, bpp = %d\n", | |
873 | pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp); | |
874 | ||
875 | pixfmt->width = clamp((pixfmt->width), min_width, max_width); | |
876 | pixfmt->height = clamp((pixfmt->height), min_height, max_height); | |
877 | ||
878 | /* If interlaced, adjust height to be a multiple of 2 */ | |
879 | if (pixfmt->field == V4L2_FIELD_INTERLACED) | |
880 | pixfmt->height &= (~1); | |
881 | /* | |
882 | * recalculate bytesperline and sizeimage since width | |
883 | * and height might have changed | |
884 | */ | |
885 | pixfmt->bytesperline = (((pixfmt->width * vpfe_pix_fmt->bpp) + 31) | |
886 | & ~31); | |
887 | if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) | |
888 | pixfmt->sizeimage = | |
889 | pixfmt->bytesperline * pixfmt->height + | |
890 | ((pixfmt->bytesperline * pixfmt->height) >> 1); | |
891 | else | |
892 | pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; | |
893 | ||
894 | v4l2_info(&vpfe_dev->v4l2_dev, "adjusted width = %d, height =" | |
895 | " %d, bpp = %d, bytesperline = %d, sizeimage = %d\n", | |
896 | pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp, | |
897 | pixfmt->bytesperline, pixfmt->sizeimage); | |
898 | return vpfe_pix_fmt; | |
899 | } | |
900 | ||
901 | static int vpfe_querycap(struct file *file, void *priv, | |
902 | struct v4l2_capability *cap) | |
903 | { | |
904 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
905 | ||
906 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querycap\n"); | |
907 | ||
908 | cap->version = VPFE_CAPTURE_VERSION_CODE; | |
909 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; | |
910 | strlcpy(cap->driver, CAPTURE_DRV_NAME, sizeof(cap->driver)); | |
911 | strlcpy(cap->bus_info, "VPFE", sizeof(cap->bus_info)); | |
912 | strlcpy(cap->card, vpfe_dev->cfg->card_name, sizeof(cap->card)); | |
913 | return 0; | |
914 | } | |
915 | ||
916 | static int vpfe_g_fmt_vid_cap(struct file *file, void *priv, | |
917 | struct v4l2_format *fmt) | |
918 | { | |
919 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
920 | int ret = 0; | |
921 | ||
922 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_fmt_vid_cap\n"); | |
923 | /* Fill in the information about format */ | |
924 | *fmt = vpfe_dev->fmt; | |
925 | return ret; | |
926 | } | |
927 | ||
928 | static int vpfe_enum_fmt_vid_cap(struct file *file, void *priv, | |
929 | struct v4l2_fmtdesc *fmt) | |
930 | { | |
931 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
932 | const struct vpfe_pixel_format *pix_fmt; | |
933 | int temp_index; | |
934 | u32 pix; | |
935 | ||
936 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_fmt_vid_cap\n"); | |
937 | ||
938 | if (ccdc_dev->hw_ops.enum_pix(&pix, fmt->index) < 0) | |
939 | return -EINVAL; | |
940 | ||
941 | /* Fill in the information about format */ | |
942 | pix_fmt = vpfe_lookup_pix_format(pix); | |
943 | if (NULL != pix_fmt) { | |
944 | temp_index = fmt->index; | |
945 | *fmt = pix_fmt->fmtdesc; | |
946 | fmt->index = temp_index; | |
947 | return 0; | |
948 | } | |
949 | return -EINVAL; | |
950 | } | |
951 | ||
952 | static int vpfe_s_fmt_vid_cap(struct file *file, void *priv, | |
953 | struct v4l2_format *fmt) | |
954 | { | |
955 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
956 | const struct vpfe_pixel_format *pix_fmts; | |
957 | int ret = 0; | |
958 | ||
959 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_fmt_vid_cap\n"); | |
960 | ||
961 | /* If streaming is started, return error */ | |
962 | if (vpfe_dev->started) { | |
963 | v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is started\n"); | |
964 | return -EBUSY; | |
965 | } | |
966 | ||
967 | /* Check for valid frame format */ | |
968 | pix_fmts = vpfe_check_format(vpfe_dev, &fmt->fmt.pix); | |
969 | ||
970 | if (NULL == pix_fmts) | |
971 | return -EINVAL; | |
972 | ||
973 | /* store the pixel format in the device object */ | |
974 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
975 | if (ret) | |
976 | return ret; | |
977 | ||
978 | /* First detach any IRQ if currently attached */ | |
979 | vpfe_detach_irq(vpfe_dev); | |
980 | vpfe_dev->fmt = *fmt; | |
981 | /* set image capture parameters in the ccdc */ | |
982 | ret = vpfe_config_ccdc_image_format(vpfe_dev); | |
983 | mutex_unlock(&vpfe_dev->lock); | |
984 | return ret; | |
985 | } | |
986 | ||
987 | static int vpfe_try_fmt_vid_cap(struct file *file, void *priv, | |
988 | struct v4l2_format *f) | |
989 | { | |
990 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
991 | const struct vpfe_pixel_format *pix_fmts; | |
992 | ||
993 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_try_fmt_vid_cap\n"); | |
994 | ||
995 | pix_fmts = vpfe_check_format(vpfe_dev, &f->fmt.pix); | |
996 | if (NULL == pix_fmts) | |
997 | return -EINVAL; | |
998 | return 0; | |
999 | } | |
1000 | ||
1001 | /* | |
1002 | * vpfe_get_subdev_input_index - Get subdev index and subdev input index for a | |
1003 | * given app input index | |
1004 | */ | |
1005 | static int vpfe_get_subdev_input_index(struct vpfe_device *vpfe_dev, | |
1006 | int *subdev_index, | |
1007 | int *subdev_input_index, | |
1008 | int app_input_index) | |
1009 | { | |
1010 | struct vpfe_config *cfg = vpfe_dev->cfg; | |
1011 | struct vpfe_subdev_info *sdinfo; | |
1012 | int i, j = 0; | |
1013 | ||
1014 | for (i = 0; i < cfg->num_subdevs; i++) { | |
1015 | sdinfo = &cfg->sub_devs[i]; | |
1016 | if (app_input_index < (j + sdinfo->num_inputs)) { | |
1017 | *subdev_index = i; | |
1018 | *subdev_input_index = app_input_index - j; | |
1019 | return 0; | |
1020 | } | |
1021 | j += sdinfo->num_inputs; | |
1022 | } | |
1023 | return -EINVAL; | |
1024 | } | |
1025 | ||
1026 | /* | |
1027 | * vpfe_get_app_input - Get app input index for a given subdev input index | |
1028 | * driver stores the input index of the current sub device and translate it | |
1029 | * when application request the current input | |
1030 | */ | |
1031 | static int vpfe_get_app_input_index(struct vpfe_device *vpfe_dev, | |
1032 | int *app_input_index) | |
1033 | { | |
1034 | struct vpfe_config *cfg = vpfe_dev->cfg; | |
1035 | struct vpfe_subdev_info *sdinfo; | |
1036 | int i, j = 0; | |
1037 | ||
1038 | for (i = 0; i < cfg->num_subdevs; i++) { | |
1039 | sdinfo = &cfg->sub_devs[i]; | |
1040 | if (!strcmp(sdinfo->name, vpfe_dev->current_subdev->name)) { | |
1041 | if (vpfe_dev->current_input >= sdinfo->num_inputs) | |
1042 | return -1; | |
1043 | *app_input_index = j + vpfe_dev->current_input; | |
1044 | return 0; | |
1045 | } | |
1046 | j += sdinfo->num_inputs; | |
1047 | } | |
1048 | return -EINVAL; | |
1049 | } | |
1050 | ||
1051 | static int vpfe_enum_input(struct file *file, void *priv, | |
1052 | struct v4l2_input *inp) | |
1053 | { | |
1054 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1055 | struct vpfe_subdev_info *sdinfo; | |
1056 | int subdev, index ; | |
1057 | ||
1058 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_input\n"); | |
1059 | ||
1060 | if (vpfe_get_subdev_input_index(vpfe_dev, | |
1061 | &subdev, | |
1062 | &index, | |
1063 | inp->index) < 0) { | |
1064 | v4l2_err(&vpfe_dev->v4l2_dev, "input information not found" | |
1065 | " for the subdev\n"); | |
1066 | return -EINVAL; | |
1067 | } | |
1068 | sdinfo = &vpfe_dev->cfg->sub_devs[subdev]; | |
1069 | memcpy(inp, &sdinfo->inputs[index], sizeof(struct v4l2_input)); | |
1070 | return 0; | |
1071 | } | |
1072 | ||
1073 | static int vpfe_g_input(struct file *file, void *priv, unsigned int *index) | |
1074 | { | |
1075 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1076 | ||
1077 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_input\n"); | |
1078 | ||
1079 | return vpfe_get_app_input_index(vpfe_dev, index); | |
1080 | } | |
1081 | ||
1082 | ||
1083 | static int vpfe_s_input(struct file *file, void *priv, unsigned int index) | |
1084 | { | |
1085 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1086 | struct vpfe_subdev_info *sdinfo; | |
1087 | int subdev_index, inp_index; | |
1088 | struct vpfe_route *route; | |
1089 | u32 input = 0, output = 0; | |
1090 | int ret = -EINVAL; | |
1091 | ||
1092 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_input\n"); | |
1093 | ||
1094 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1095 | if (ret) | |
1096 | return ret; | |
1097 | ||
1098 | /* | |
1099 | * If streaming is started return device busy | |
1100 | * error | |
1101 | */ | |
1102 | if (vpfe_dev->started) { | |
1103 | v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is on\n"); | |
1104 | ret = -EBUSY; | |
1105 | goto unlock_out; | |
1106 | } | |
1107 | ||
1108 | if (vpfe_get_subdev_input_index(vpfe_dev, | |
1109 | &subdev_index, | |
1110 | &inp_index, | |
1111 | index) < 0) { | |
1112 | v4l2_err(&vpfe_dev->v4l2_dev, "invalid input index\n"); | |
1113 | goto unlock_out; | |
1114 | } | |
1115 | ||
1116 | sdinfo = &vpfe_dev->cfg->sub_devs[subdev_index]; | |
1117 | route = &sdinfo->routes[inp_index]; | |
1118 | if (route && sdinfo->can_route) { | |
1119 | input = route->input; | |
1120 | output = route->output; | |
1121 | } | |
1122 | ||
1123 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1124 | video, s_routing, input, output, 0); | |
1125 | ||
1126 | if (ret) { | |
1127 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1128 | "vpfe_doioctl:error in setting input in decoder\n"); | |
1129 | ret = -EINVAL; | |
1130 | goto unlock_out; | |
1131 | } | |
1132 | vpfe_dev->current_subdev = sdinfo; | |
1133 | vpfe_dev->current_input = index; | |
1134 | vpfe_dev->std_index = 0; | |
1135 | ||
1136 | /* set the bus/interface parameter for the sub device in ccdc */ | |
1137 | ret = ccdc_dev->hw_ops.set_hw_if_params(&sdinfo->ccdc_if_params); | |
1138 | if (ret) | |
1139 | goto unlock_out; | |
1140 | ||
1141 | /* set the default image parameters in the device */ | |
1142 | ret = vpfe_config_image_format(vpfe_dev, | |
1143 | &vpfe_standards[vpfe_dev->std_index].std_id); | |
1144 | unlock_out: | |
1145 | mutex_unlock(&vpfe_dev->lock); | |
1146 | return ret; | |
1147 | } | |
1148 | ||
1149 | static int vpfe_querystd(struct file *file, void *priv, v4l2_std_id *std_id) | |
1150 | { | |
1151 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1152 | struct vpfe_subdev_info *sdinfo; | |
1153 | int ret = 0; | |
1154 | ||
1155 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querystd\n"); | |
1156 | ||
1157 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1158 | sdinfo = vpfe_dev->current_subdev; | |
1159 | if (ret) | |
1160 | return ret; | |
1161 | /* Call querystd function of decoder device */ | |
1162 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1163 | video, querystd, std_id); | |
1164 | mutex_unlock(&vpfe_dev->lock); | |
1165 | return ret; | |
1166 | } | |
1167 | ||
1168 | static int vpfe_s_std(struct file *file, void *priv, v4l2_std_id *std_id) | |
1169 | { | |
1170 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1171 | struct vpfe_subdev_info *sdinfo; | |
1172 | int ret = 0; | |
1173 | ||
1174 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_std\n"); | |
1175 | ||
1176 | /* Call decoder driver function to set the standard */ | |
1177 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1178 | if (ret) | |
1179 | return ret; | |
1180 | ||
1181 | sdinfo = vpfe_dev->current_subdev; | |
1182 | /* If streaming is started, return device busy error */ | |
1183 | if (vpfe_dev->started) { | |
1184 | v4l2_err(&vpfe_dev->v4l2_dev, "streaming is started\n"); | |
1185 | ret = -EBUSY; | |
1186 | goto unlock_out; | |
1187 | } | |
1188 | ||
1189 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1190 | core, s_std, *std_id); | |
1191 | if (ret < 0) { | |
1192 | v4l2_err(&vpfe_dev->v4l2_dev, "Failed to set standard\n"); | |
1193 | goto unlock_out; | |
1194 | } | |
1195 | ret = vpfe_config_image_format(vpfe_dev, std_id); | |
1196 | ||
1197 | unlock_out: | |
1198 | mutex_unlock(&vpfe_dev->lock); | |
1199 | return ret; | |
1200 | } | |
1201 | ||
1202 | static int vpfe_g_std(struct file *file, void *priv, v4l2_std_id *std_id) | |
1203 | { | |
1204 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1205 | ||
1206 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_std\n"); | |
1207 | ||
1208 | *std_id = vpfe_standards[vpfe_dev->std_index].std_id; | |
1209 | return 0; | |
1210 | } | |
1211 | /* | |
1212 | * Videobuf operations | |
1213 | */ | |
1214 | static int vpfe_videobuf_setup(struct videobuf_queue *vq, | |
1215 | unsigned int *count, | |
1216 | unsigned int *size) | |
1217 | { | |
1218 | struct vpfe_fh *fh = vq->priv_data; | |
1219 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1220 | ||
1221 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_setup\n"); | |
1222 | *size = config_params.device_bufsize; | |
1223 | ||
1224 | if (*count < config_params.min_numbuffers) | |
1225 | *count = config_params.min_numbuffers; | |
1226 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1227 | "count=%d, size=%d\n", *count, *size); | |
1228 | return 0; | |
1229 | } | |
1230 | ||
1231 | static int vpfe_videobuf_prepare(struct videobuf_queue *vq, | |
1232 | struct videobuf_buffer *vb, | |
1233 | enum v4l2_field field) | |
1234 | { | |
1235 | struct vpfe_fh *fh = vq->priv_data; | |
1236 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1237 | ||
1238 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_prepare\n"); | |
1239 | ||
1240 | /* If buffer is not initialized, initialize it */ | |
1241 | if (VIDEOBUF_NEEDS_INIT == vb->state) { | |
1242 | vb->width = vpfe_dev->fmt.fmt.pix.width; | |
1243 | vb->height = vpfe_dev->fmt.fmt.pix.height; | |
1244 | vb->size = vpfe_dev->fmt.fmt.pix.sizeimage; | |
1245 | vb->field = field; | |
1246 | } | |
1247 | vb->state = VIDEOBUF_PREPARED; | |
1248 | return 0; | |
1249 | } | |
1250 | ||
1251 | static void vpfe_videobuf_queue(struct videobuf_queue *vq, | |
1252 | struct videobuf_buffer *vb) | |
1253 | { | |
1254 | /* Get the file handle object and device object */ | |
1255 | struct vpfe_fh *fh = vq->priv_data; | |
1256 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1257 | unsigned long flags; | |
1258 | ||
1259 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_queue\n"); | |
1260 | ||
1261 | /* add the buffer to the DMA queue */ | |
1262 | spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags); | |
1263 | list_add_tail(&vb->queue, &vpfe_dev->dma_queue); | |
1264 | spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags); | |
1265 | ||
1266 | /* Change state of the buffer */ | |
1267 | vb->state = VIDEOBUF_QUEUED; | |
1268 | } | |
1269 | ||
1270 | static void vpfe_videobuf_release(struct videobuf_queue *vq, | |
1271 | struct videobuf_buffer *vb) | |
1272 | { | |
1273 | struct vpfe_fh *fh = vq->priv_data; | |
1274 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1275 | unsigned long flags; | |
1276 | ||
1277 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_videobuf_release\n"); | |
1278 | ||
1279 | /* | |
1280 | * We need to flush the buffer from the dma queue since | |
1281 | * they are de-allocated | |
1282 | */ | |
1283 | spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags); | |
1284 | INIT_LIST_HEAD(&vpfe_dev->dma_queue); | |
1285 | spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags); | |
1286 | videobuf_dma_contig_free(vq, vb); | |
1287 | vb->state = VIDEOBUF_NEEDS_INIT; | |
1288 | } | |
1289 | ||
1290 | static struct videobuf_queue_ops vpfe_videobuf_qops = { | |
1291 | .buf_setup = vpfe_videobuf_setup, | |
1292 | .buf_prepare = vpfe_videobuf_prepare, | |
1293 | .buf_queue = vpfe_videobuf_queue, | |
1294 | .buf_release = vpfe_videobuf_release, | |
1295 | }; | |
1296 | ||
1297 | /* | |
1298 | * vpfe_reqbufs. currently support REQBUF only once opening | |
1299 | * the device. | |
1300 | */ | |
1301 | static int vpfe_reqbufs(struct file *file, void *priv, | |
1302 | struct v4l2_requestbuffers *req_buf) | |
1303 | { | |
1304 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1305 | struct vpfe_fh *fh = file->private_data; | |
1306 | int ret = 0; | |
1307 | ||
1308 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_reqbufs\n"); | |
1309 | ||
1310 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != req_buf->type) { | |
1311 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1312 | return -EINVAL; | |
1313 | } | |
1314 | ||
1315 | if (V4L2_MEMORY_USERPTR == req_buf->memory) { | |
1316 | /* we don't support user ptr IO */ | |
1317 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_reqbufs:" | |
1318 | " USERPTR IO not supported\n"); | |
1319 | return -EINVAL; | |
1320 | } | |
1321 | ||
1322 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1323 | if (ret) | |
1324 | return ret; | |
1325 | ||
1326 | if (vpfe_dev->io_usrs != 0) { | |
1327 | v4l2_err(&vpfe_dev->v4l2_dev, "Only one IO user allowed\n"); | |
1328 | ret = -EBUSY; | |
1329 | goto unlock_out; | |
1330 | } | |
1331 | ||
1332 | vpfe_dev->memory = req_buf->memory; | |
1333 | videobuf_queue_dma_contig_init(&vpfe_dev->buffer_queue, | |
1334 | &vpfe_videobuf_qops, | |
204e6ea9 | 1335 | vpfe_dev->pdev, |
7da8a6cb MK |
1336 | &vpfe_dev->irqlock, |
1337 | req_buf->type, | |
1338 | vpfe_dev->fmt.fmt.pix.field, | |
1339 | sizeof(struct videobuf_buffer), | |
1340 | fh); | |
1341 | ||
1342 | fh->io_allowed = 1; | |
1343 | vpfe_dev->io_usrs = 1; | |
1344 | INIT_LIST_HEAD(&vpfe_dev->dma_queue); | |
1345 | ret = videobuf_reqbufs(&vpfe_dev->buffer_queue, req_buf); | |
1346 | unlock_out: | |
1347 | mutex_unlock(&vpfe_dev->lock); | |
1348 | return ret; | |
1349 | } | |
1350 | ||
1351 | static int vpfe_querybuf(struct file *file, void *priv, | |
1352 | struct v4l2_buffer *buf) | |
1353 | { | |
1354 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1355 | ||
1356 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querybuf\n"); | |
1357 | ||
1358 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) { | |
1359 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1360 | return -EINVAL; | |
1361 | } | |
1362 | ||
1363 | if (vpfe_dev->memory != V4L2_MEMORY_MMAP) { | |
1364 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid memory\n"); | |
1365 | return -EINVAL; | |
1366 | } | |
1367 | /* Call videobuf_querybuf to get information */ | |
1368 | return videobuf_querybuf(&vpfe_dev->buffer_queue, buf); | |
1369 | } | |
1370 | ||
1371 | static int vpfe_qbuf(struct file *file, void *priv, | |
1372 | struct v4l2_buffer *p) | |
1373 | { | |
1374 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1375 | struct vpfe_fh *fh = file->private_data; | |
1376 | ||
1377 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_qbuf\n"); | |
1378 | ||
1379 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != p->type) { | |
1380 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1381 | return -EINVAL; | |
1382 | } | |
1383 | ||
1384 | /* | |
1385 | * If this file handle is not allowed to do IO, | |
1386 | * return error | |
1387 | */ | |
1388 | if (!fh->io_allowed) { | |
1389 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1390 | return -EACCES; | |
1391 | } | |
1392 | return videobuf_qbuf(&vpfe_dev->buffer_queue, p); | |
1393 | } | |
1394 | ||
1395 | static int vpfe_dqbuf(struct file *file, void *priv, | |
1396 | struct v4l2_buffer *buf) | |
1397 | { | |
1398 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1399 | ||
1400 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_dqbuf\n"); | |
1401 | ||
1402 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) { | |
1403 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1404 | return -EINVAL; | |
1405 | } | |
1406 | return videobuf_dqbuf(&vpfe_dev->buffer_queue, | |
1407 | buf, file->f_flags & O_NONBLOCK); | |
1408 | } | |
1409 | ||
d73bfc5f VH |
1410 | static int vpfe_queryctrl(struct file *file, void *priv, |
1411 | struct v4l2_queryctrl *qctrl) | |
1412 | { | |
1413 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1414 | struct vpfe_subdev_info *sdinfo; | |
1415 | ||
1416 | sdinfo = vpfe_dev->current_subdev; | |
1417 | ||
1418 | return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1419 | core, queryctrl, qctrl); | |
1420 | ||
1421 | } | |
1422 | ||
1423 | static int vpfe_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) | |
1424 | { | |
1425 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1426 | struct vpfe_subdev_info *sdinfo; | |
1427 | ||
1428 | sdinfo = vpfe_dev->current_subdev; | |
1429 | ||
1430 | return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1431 | core, g_ctrl, ctrl); | |
1432 | } | |
1433 | ||
1434 | static int vpfe_s_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) | |
1435 | { | |
1436 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1437 | struct vpfe_subdev_info *sdinfo; | |
1438 | ||
1439 | sdinfo = vpfe_dev->current_subdev; | |
1440 | ||
1441 | return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1442 | core, s_ctrl, ctrl); | |
1443 | } | |
1444 | ||
7da8a6cb MK |
1445 | /* |
1446 | * vpfe_calculate_offsets : This function calculates buffers offset | |
1447 | * for top and bottom field | |
1448 | */ | |
1449 | static void vpfe_calculate_offsets(struct vpfe_device *vpfe_dev) | |
1450 | { | |
1451 | struct v4l2_rect image_win; | |
1452 | ||
1453 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_calculate_offsets\n"); | |
1454 | ||
1455 | ccdc_dev->hw_ops.get_image_window(&image_win); | |
1456 | vpfe_dev->field_off = image_win.height * image_win.width; | |
1457 | } | |
1458 | ||
1459 | /* vpfe_start_ccdc_capture: start streaming in ccdc/isif */ | |
1460 | static void vpfe_start_ccdc_capture(struct vpfe_device *vpfe_dev) | |
1461 | { | |
1462 | ccdc_dev->hw_ops.enable(1); | |
1463 | if (ccdc_dev->hw_ops.enable_out_to_sdram) | |
1464 | ccdc_dev->hw_ops.enable_out_to_sdram(1); | |
1465 | vpfe_dev->started = 1; | |
1466 | } | |
1467 | ||
1468 | /* | |
1469 | * vpfe_streamon. Assume the DMA queue is not empty. | |
1470 | * application is expected to call QBUF before calling | |
1471 | * this ioctl. If not, driver returns error | |
1472 | */ | |
1473 | static int vpfe_streamon(struct file *file, void *priv, | |
1474 | enum v4l2_buf_type buf_type) | |
1475 | { | |
1476 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1477 | struct vpfe_fh *fh = file->private_data; | |
1478 | struct vpfe_subdev_info *sdinfo; | |
1479 | unsigned long addr; | |
1480 | int ret = 0; | |
1481 | ||
1482 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamon\n"); | |
1483 | ||
1484 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) { | |
1485 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1486 | return -EINVAL; | |
1487 | } | |
1488 | ||
1489 | /* If file handle is not allowed IO, return error */ | |
1490 | if (!fh->io_allowed) { | |
1491 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1492 | return -EACCES; | |
1493 | } | |
1494 | ||
1495 | sdinfo = vpfe_dev->current_subdev; | |
1496 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1497 | video, s_stream, 1); | |
1498 | ||
1499 | if (ret && (ret != -ENOIOCTLCMD)) { | |
1500 | v4l2_err(&vpfe_dev->v4l2_dev, "stream on failed in subdev\n"); | |
1501 | return -EINVAL; | |
1502 | } | |
1503 | ||
1504 | /* If buffer queue is empty, return error */ | |
1505 | if (list_empty(&vpfe_dev->buffer_queue.stream)) { | |
1506 | v4l2_err(&vpfe_dev->v4l2_dev, "buffer queue is empty\n"); | |
1507 | return -EIO; | |
1508 | } | |
1509 | ||
1510 | /* Call videobuf_streamon to start streaming * in videobuf */ | |
1511 | ret = videobuf_streamon(&vpfe_dev->buffer_queue); | |
1512 | if (ret) | |
1513 | return ret; | |
1514 | ||
1515 | ||
1516 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1517 | if (ret) | |
1518 | goto streamoff; | |
1519 | /* Get the next frame from the buffer queue */ | |
1520 | vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next, | |
1521 | struct videobuf_buffer, queue); | |
1522 | vpfe_dev->cur_frm = vpfe_dev->next_frm; | |
1523 | /* Remove buffer from the buffer queue */ | |
1524 | list_del(&vpfe_dev->cur_frm->queue); | |
1525 | /* Mark state of the current frame to active */ | |
1526 | vpfe_dev->cur_frm->state = VIDEOBUF_ACTIVE; | |
1527 | /* Initialize field_id and started member */ | |
1528 | vpfe_dev->field_id = 0; | |
1529 | addr = videobuf_to_dma_contig(vpfe_dev->cur_frm); | |
1530 | ||
1531 | /* Calculate field offset */ | |
1532 | vpfe_calculate_offsets(vpfe_dev); | |
1533 | ||
1534 | if (vpfe_attach_irq(vpfe_dev) < 0) { | |
1535 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1536 | "Error in attaching interrupt handle\n"); | |
1537 | ret = -EFAULT; | |
1538 | goto unlock_out; | |
1539 | } | |
1540 | if (ccdc_dev->hw_ops.configure() < 0) { | |
1541 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1542 | "Error in configuring ccdc\n"); | |
1543 | ret = -EINVAL; | |
1544 | goto unlock_out; | |
1545 | } | |
1546 | ccdc_dev->hw_ops.setfbaddr((unsigned long)(addr)); | |
1547 | vpfe_start_ccdc_capture(vpfe_dev); | |
1548 | mutex_unlock(&vpfe_dev->lock); | |
1549 | return ret; | |
1550 | unlock_out: | |
1551 | mutex_unlock(&vpfe_dev->lock); | |
1552 | streamoff: | |
1553 | ret = videobuf_streamoff(&vpfe_dev->buffer_queue); | |
1554 | return ret; | |
1555 | } | |
1556 | ||
1557 | static int vpfe_streamoff(struct file *file, void *priv, | |
1558 | enum v4l2_buf_type buf_type) | |
1559 | { | |
1560 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1561 | struct vpfe_fh *fh = file->private_data; | |
1562 | struct vpfe_subdev_info *sdinfo; | |
1563 | int ret = 0; | |
1564 | ||
1565 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamoff\n"); | |
1566 | ||
1567 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) { | |
1568 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1569 | return -EINVAL; | |
1570 | } | |
1571 | ||
1572 | /* If io is allowed for this file handle, return error */ | |
1573 | if (!fh->io_allowed) { | |
1574 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1575 | return -EACCES; | |
1576 | } | |
1577 | ||
1578 | /* If streaming is not started, return error */ | |
1579 | if (!vpfe_dev->started) { | |
1580 | v4l2_err(&vpfe_dev->v4l2_dev, "device started\n"); | |
1581 | return -EINVAL; | |
1582 | } | |
1583 | ||
1584 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1585 | if (ret) | |
1586 | return ret; | |
1587 | ||
1588 | vpfe_stop_ccdc_capture(vpfe_dev); | |
1589 | vpfe_detach_irq(vpfe_dev); | |
1590 | ||
1591 | sdinfo = vpfe_dev->current_subdev; | |
1592 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1593 | video, s_stream, 0); | |
1594 | ||
1595 | if (ret && (ret != -ENOIOCTLCMD)) | |
1596 | v4l2_err(&vpfe_dev->v4l2_dev, "stream off failed in subdev\n"); | |
1597 | ret = videobuf_streamoff(&vpfe_dev->buffer_queue); | |
1598 | mutex_unlock(&vpfe_dev->lock); | |
1599 | return ret; | |
1600 | } | |
1601 | ||
1602 | static int vpfe_cropcap(struct file *file, void *priv, | |
1603 | struct v4l2_cropcap *crop) | |
1604 | { | |
1605 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1606 | ||
1607 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_cropcap\n"); | |
1608 | ||
0b66cf90 | 1609 | if (vpfe_dev->std_index >= ARRAY_SIZE(vpfe_standards)) |
7da8a6cb MK |
1610 | return -EINVAL; |
1611 | ||
1612 | memset(crop, 0, sizeof(struct v4l2_cropcap)); | |
1613 | crop->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1614 | crop->bounds.width = crop->defrect.width = | |
1615 | vpfe_standards[vpfe_dev->std_index].width; | |
1616 | crop->bounds.height = crop->defrect.height = | |
1617 | vpfe_standards[vpfe_dev->std_index].height; | |
1618 | crop->pixelaspect = vpfe_standards[vpfe_dev->std_index].pixelaspect; | |
1619 | return 0; | |
1620 | } | |
1621 | ||
1622 | static int vpfe_g_crop(struct file *file, void *priv, | |
1623 | struct v4l2_crop *crop) | |
1624 | { | |
1625 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1626 | ||
1627 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_crop\n"); | |
1628 | ||
1629 | crop->c = vpfe_dev->crop; | |
1630 | return 0; | |
1631 | } | |
1632 | ||
1633 | static int vpfe_s_crop(struct file *file, void *priv, | |
1634 | struct v4l2_crop *crop) | |
1635 | { | |
1636 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1637 | int ret = 0; | |
1638 | ||
1639 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_crop\n"); | |
1640 | ||
1641 | if (vpfe_dev->started) { | |
1642 | /* make sure streaming is not started */ | |
1643 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1644 | "Cannot change crop when streaming is ON\n"); | |
1645 | return -EBUSY; | |
1646 | } | |
1647 | ||
1648 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1649 | if (ret) | |
1650 | return ret; | |
1651 | ||
1652 | if (crop->c.top < 0 || crop->c.left < 0) { | |
1653 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1654 | "doesn't support negative values for top & left\n"); | |
1655 | ret = -EINVAL; | |
1656 | goto unlock_out; | |
1657 | } | |
1658 | ||
1659 | /* adjust the width to 16 pixel boundry */ | |
1660 | crop->c.width = ((crop->c.width + 15) & ~0xf); | |
1661 | ||
1662 | /* make sure parameters are valid */ | |
1663 | if ((crop->c.left + crop->c.width > | |
1664 | vpfe_dev->std_info.active_pixels) || | |
1665 | (crop->c.top + crop->c.height > | |
1666 | vpfe_dev->std_info.active_lines)) { | |
1667 | v4l2_err(&vpfe_dev->v4l2_dev, "Error in S_CROP params\n"); | |
1668 | ret = -EINVAL; | |
1669 | goto unlock_out; | |
1670 | } | |
1671 | ccdc_dev->hw_ops.set_image_window(&crop->c); | |
1672 | vpfe_dev->fmt.fmt.pix.width = crop->c.width; | |
1673 | vpfe_dev->fmt.fmt.pix.height = crop->c.height; | |
1674 | vpfe_dev->fmt.fmt.pix.bytesperline = | |
1675 | ccdc_dev->hw_ops.get_line_length(); | |
1676 | vpfe_dev->fmt.fmt.pix.sizeimage = | |
1677 | vpfe_dev->fmt.fmt.pix.bytesperline * | |
1678 | vpfe_dev->fmt.fmt.pix.height; | |
1679 | vpfe_dev->crop = crop->c; | |
1680 | unlock_out: | |
1681 | mutex_unlock(&vpfe_dev->lock); | |
1682 | return ret; | |
1683 | } | |
1684 | ||
1685 | ||
1686 | static long vpfe_param_handler(struct file *file, void *priv, | |
1687 | int cmd, void *param) | |
1688 | { | |
1689 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1690 | int ret = 0; | |
1691 | ||
1692 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_param_handler\n"); | |
1693 | ||
1694 | if (vpfe_dev->started) { | |
1695 | /* only allowed if streaming is not started */ | |
1696 | v4l2_err(&vpfe_dev->v4l2_dev, "device already started\n"); | |
1697 | return -EBUSY; | |
1698 | } | |
1699 | ||
1700 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1701 | if (ret) | |
1702 | return ret; | |
1703 | ||
1704 | switch (cmd) { | |
1705 | case VPFE_CMD_S_CCDC_RAW_PARAMS: | |
1706 | v4l2_warn(&vpfe_dev->v4l2_dev, | |
1707 | "VPFE_CMD_S_CCDC_RAW_PARAMS: experimental ioctl\n"); | |
1708 | ret = ccdc_dev->hw_ops.set_params(param); | |
1709 | if (ret) { | |
1710 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1711 | "Error in setting parameters in CCDC\n"); | |
1712 | goto unlock_out; | |
1713 | } | |
1714 | if (vpfe_get_ccdc_image_format(vpfe_dev, &vpfe_dev->fmt) < 0) { | |
1715 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1716 | "Invalid image format at CCDC\n"); | |
1717 | goto unlock_out; | |
1718 | } | |
1719 | break; | |
1720 | default: | |
1721 | ret = -EINVAL; | |
1722 | } | |
1723 | unlock_out: | |
1724 | mutex_unlock(&vpfe_dev->lock); | |
1725 | return ret; | |
1726 | } | |
1727 | ||
1728 | ||
1729 | /* vpfe capture ioctl operations */ | |
1730 | static const struct v4l2_ioctl_ops vpfe_ioctl_ops = { | |
1731 | .vidioc_querycap = vpfe_querycap, | |
1732 | .vidioc_g_fmt_vid_cap = vpfe_g_fmt_vid_cap, | |
1733 | .vidioc_enum_fmt_vid_cap = vpfe_enum_fmt_vid_cap, | |
1734 | .vidioc_s_fmt_vid_cap = vpfe_s_fmt_vid_cap, | |
1735 | .vidioc_try_fmt_vid_cap = vpfe_try_fmt_vid_cap, | |
1736 | .vidioc_enum_input = vpfe_enum_input, | |
1737 | .vidioc_g_input = vpfe_g_input, | |
1738 | .vidioc_s_input = vpfe_s_input, | |
1739 | .vidioc_querystd = vpfe_querystd, | |
1740 | .vidioc_s_std = vpfe_s_std, | |
1741 | .vidioc_g_std = vpfe_g_std, | |
d73bfc5f VH |
1742 | .vidioc_queryctrl = vpfe_queryctrl, |
1743 | .vidioc_g_ctrl = vpfe_g_ctrl, | |
1744 | .vidioc_s_ctrl = vpfe_s_ctrl, | |
7da8a6cb MK |
1745 | .vidioc_reqbufs = vpfe_reqbufs, |
1746 | .vidioc_querybuf = vpfe_querybuf, | |
1747 | .vidioc_qbuf = vpfe_qbuf, | |
1748 | .vidioc_dqbuf = vpfe_dqbuf, | |
1749 | .vidioc_streamon = vpfe_streamon, | |
1750 | .vidioc_streamoff = vpfe_streamoff, | |
1751 | .vidioc_cropcap = vpfe_cropcap, | |
1752 | .vidioc_g_crop = vpfe_g_crop, | |
1753 | .vidioc_s_crop = vpfe_s_crop, | |
1754 | .vidioc_default = vpfe_param_handler, | |
1755 | }; | |
1756 | ||
1757 | static struct vpfe_device *vpfe_initialize(void) | |
1758 | { | |
1759 | struct vpfe_device *vpfe_dev; | |
1760 | ||
1761 | /* Default number of buffers should be 3 */ | |
1762 | if ((numbuffers > 0) && | |
1763 | (numbuffers < config_params.min_numbuffers)) | |
1764 | numbuffers = config_params.min_numbuffers; | |
1765 | ||
1766 | /* | |
1767 | * Set buffer size to min buffers size if invalid buffer size is | |
1768 | * given | |
1769 | */ | |
1770 | if (bufsize < config_params.min_bufsize) | |
1771 | bufsize = config_params.min_bufsize; | |
1772 | ||
1773 | config_params.numbuffers = numbuffers; | |
1774 | ||
1775 | if (numbuffers) | |
1776 | config_params.device_bufsize = bufsize; | |
1777 | ||
1778 | /* Allocate memory for device objects */ | |
1779 | vpfe_dev = kzalloc(sizeof(*vpfe_dev), GFP_KERNEL); | |
1780 | ||
1781 | return vpfe_dev; | |
1782 | } | |
1783 | ||
7da8a6cb MK |
1784 | /* |
1785 | * vpfe_probe : This function creates device entries by register | |
1786 | * itself to the V4L2 driver and initializes fields of each | |
1787 | * device objects | |
1788 | */ | |
1789 | static __init int vpfe_probe(struct platform_device *pdev) | |
1790 | { | |
1791 | struct vpfe_subdev_info *sdinfo; | |
1792 | struct vpfe_config *vpfe_cfg; | |
1793 | struct resource *res1; | |
1794 | struct vpfe_device *vpfe_dev; | |
1795 | struct i2c_adapter *i2c_adap; | |
1796 | struct video_device *vfd; | |
1797 | int ret = -ENOMEM, i, j; | |
1798 | int num_subdevs = 0; | |
1799 | ||
1800 | /* Get the pointer to the device object */ | |
1801 | vpfe_dev = vpfe_initialize(); | |
1802 | ||
1803 | if (!vpfe_dev) { | |
1804 | v4l2_err(pdev->dev.driver, | |
1805 | "Failed to allocate memory for vpfe_dev\n"); | |
1806 | return ret; | |
1807 | } | |
1808 | ||
1809 | vpfe_dev->pdev = &pdev->dev; | |
1810 | ||
1811 | if (NULL == pdev->dev.platform_data) { | |
1812 | v4l2_err(pdev->dev.driver, "Unable to get vpfe config\n"); | |
51444ea3 | 1813 | ret = -ENODEV; |
7da8a6cb MK |
1814 | goto probe_free_dev_mem; |
1815 | } | |
1816 | ||
1817 | vpfe_cfg = pdev->dev.platform_data; | |
1818 | vpfe_dev->cfg = vpfe_cfg; | |
1819 | if (NULL == vpfe_cfg->ccdc || | |
1820 | NULL == vpfe_cfg->card_name || | |
1821 | NULL == vpfe_cfg->sub_devs) { | |
1822 | v4l2_err(pdev->dev.driver, "null ptr in vpfe_cfg\n"); | |
1823 | ret = -ENOENT; | |
1824 | goto probe_free_dev_mem; | |
1825 | } | |
1826 | ||
7da8a6cb MK |
1827 | mutex_lock(&ccdc_lock); |
1828 | /* Allocate memory for ccdc configuration */ | |
1829 | ccdc_cfg = kmalloc(sizeof(struct ccdc_config), GFP_KERNEL); | |
1830 | if (NULL == ccdc_cfg) { | |
1831 | v4l2_err(pdev->dev.driver, | |
1832 | "Memory allocation failed for ccdc_cfg\n"); | |
51444ea3 | 1833 | goto probe_free_dev_mem; |
7da8a6cb MK |
1834 | } |
1835 | ||
1836 | strncpy(ccdc_cfg->name, vpfe_cfg->ccdc, 32); | |
1837 | /* Get VINT0 irq resource */ | |
1838 | res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 0); | |
1839 | if (!res1) { | |
1840 | v4l2_err(pdev->dev.driver, | |
1841 | "Unable to get interrupt for VINT0\n"); | |
51444ea3 MK |
1842 | ret = -ENODEV; |
1843 | goto probe_free_ccdc_cfg_mem; | |
7da8a6cb MK |
1844 | } |
1845 | vpfe_dev->ccdc_irq0 = res1->start; | |
1846 | ||
1847 | /* Get VINT1 irq resource */ | |
51444ea3 | 1848 | res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 1); |
7da8a6cb MK |
1849 | if (!res1) { |
1850 | v4l2_err(pdev->dev.driver, | |
1851 | "Unable to get interrupt for VINT1\n"); | |
51444ea3 MK |
1852 | ret = -ENODEV; |
1853 | goto probe_free_ccdc_cfg_mem; | |
7da8a6cb MK |
1854 | } |
1855 | vpfe_dev->ccdc_irq1 = res1->start; | |
1856 | ||
7da8a6cb MK |
1857 | ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, IRQF_DISABLED, |
1858 | "vpfe_capture0", vpfe_dev); | |
1859 | ||
1860 | if (0 != ret) { | |
1861 | v4l2_err(pdev->dev.driver, "Unable to request interrupt\n"); | |
51444ea3 | 1862 | goto probe_free_ccdc_cfg_mem; |
7da8a6cb MK |
1863 | } |
1864 | ||
1865 | /* Allocate memory for video device */ | |
1866 | vfd = video_device_alloc(); | |
1867 | if (NULL == vfd) { | |
1868 | ret = -ENOMEM; | |
51444ea3 | 1869 | v4l2_err(pdev->dev.driver, "Unable to alloc video device\n"); |
7da8a6cb MK |
1870 | goto probe_out_release_irq; |
1871 | } | |
1872 | ||
1873 | /* Initialize field of video device */ | |
1874 | vfd->release = video_device_release; | |
1875 | vfd->fops = &vpfe_fops; | |
1876 | vfd->ioctl_ops = &vpfe_ioctl_ops; | |
7da8a6cb MK |
1877 | vfd->tvnorms = 0; |
1878 | vfd->current_norm = V4L2_STD_PAL; | |
1879 | vfd->v4l2_dev = &vpfe_dev->v4l2_dev; | |
1880 | snprintf(vfd->name, sizeof(vfd->name), | |
1881 | "%s_V%d.%d.%d", | |
1882 | CAPTURE_DRV_NAME, | |
1883 | (VPFE_CAPTURE_VERSION_CODE >> 16) & 0xff, | |
1884 | (VPFE_CAPTURE_VERSION_CODE >> 8) & 0xff, | |
1885 | (VPFE_CAPTURE_VERSION_CODE) & 0xff); | |
1886 | /* Set video_dev to the video device */ | |
1887 | vpfe_dev->video_dev = vfd; | |
1888 | ||
1889 | ret = v4l2_device_register(&pdev->dev, &vpfe_dev->v4l2_dev); | |
1890 | if (ret) { | |
1891 | v4l2_err(pdev->dev.driver, | |
1892 | "Unable to register v4l2 device.\n"); | |
1893 | goto probe_out_video_release; | |
1894 | } | |
1895 | v4l2_info(&vpfe_dev->v4l2_dev, "v4l2 device registered\n"); | |
1896 | spin_lock_init(&vpfe_dev->irqlock); | |
1897 | spin_lock_init(&vpfe_dev->dma_queue_lock); | |
1898 | mutex_init(&vpfe_dev->lock); | |
1899 | ||
1900 | /* Initialize field of the device objects */ | |
1901 | vpfe_dev->numbuffers = config_params.numbuffers; | |
1902 | ||
1903 | /* Initialize prio member of device object */ | |
1904 | v4l2_prio_init(&vpfe_dev->prio); | |
1905 | /* register video device */ | |
1906 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1907 | "trying to register vpfe device.\n"); | |
1908 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1909 | "video_dev=%x\n", (int)&vpfe_dev->video_dev); | |
1910 | vpfe_dev->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1911 | ret = video_register_device(vpfe_dev->video_dev, | |
1912 | VFL_TYPE_GRABBER, -1); | |
1913 | ||
1914 | if (ret) { | |
1915 | v4l2_err(pdev->dev.driver, | |
1916 | "Unable to register video device.\n"); | |
1917 | goto probe_out_v4l2_unregister; | |
1918 | } | |
1919 | ||
1920 | v4l2_info(&vpfe_dev->v4l2_dev, "video device registered\n"); | |
1921 | /* set the driver data in platform device */ | |
1922 | platform_set_drvdata(pdev, vpfe_dev); | |
1923 | /* set driver private data */ | |
1924 | video_set_drvdata(vpfe_dev->video_dev, vpfe_dev); | |
14cbaafe | 1925 | i2c_adap = i2c_get_adapter(vpfe_cfg->i2c_adapter_id); |
7da8a6cb MK |
1926 | num_subdevs = vpfe_cfg->num_subdevs; |
1927 | vpfe_dev->sd = kmalloc(sizeof(struct v4l2_subdev *) * num_subdevs, | |
1928 | GFP_KERNEL); | |
1929 | if (NULL == vpfe_dev->sd) { | |
1930 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1931 | "unable to allocate memory for subdevice pointers\n"); | |
1932 | ret = -ENOMEM; | |
1933 | goto probe_out_video_unregister; | |
1934 | } | |
1935 | ||
1936 | for (i = 0; i < num_subdevs; i++) { | |
1937 | struct v4l2_input *inps; | |
1938 | ||
1939 | sdinfo = &vpfe_cfg->sub_devs[i]; | |
1940 | ||
1941 | /* Load up the subdevice */ | |
1942 | vpfe_dev->sd[i] = | |
1943 | v4l2_i2c_new_subdev_board(&vpfe_dev->v4l2_dev, | |
1944 | i2c_adap, | |
1945 | sdinfo->name, | |
1946 | &sdinfo->board_info, | |
1947 | NULL); | |
1948 | if (vpfe_dev->sd[i]) { | |
1949 | v4l2_info(&vpfe_dev->v4l2_dev, | |
1950 | "v4l2 sub device %s registered\n", | |
1951 | sdinfo->name); | |
1952 | vpfe_dev->sd[i]->grp_id = sdinfo->grp_id; | |
1953 | /* update tvnorms from the sub devices */ | |
1954 | for (j = 0; j < sdinfo->num_inputs; j++) { | |
1955 | inps = &sdinfo->inputs[j]; | |
1956 | vfd->tvnorms |= inps->std; | |
1957 | } | |
1958 | } else { | |
1959 | v4l2_info(&vpfe_dev->v4l2_dev, | |
1960 | "v4l2 sub device %s register fails\n", | |
1961 | sdinfo->name); | |
1962 | goto probe_sd_out; | |
1963 | } | |
1964 | } | |
1965 | ||
1966 | /* set first sub device as current one */ | |
1967 | vpfe_dev->current_subdev = &vpfe_cfg->sub_devs[0]; | |
1968 | ||
1969 | /* We have at least one sub device to work with */ | |
1970 | mutex_unlock(&ccdc_lock); | |
1971 | return 0; | |
1972 | ||
1973 | probe_sd_out: | |
1974 | kfree(vpfe_dev->sd); | |
1975 | probe_out_video_unregister: | |
1976 | video_unregister_device(vpfe_dev->video_dev); | |
1977 | probe_out_v4l2_unregister: | |
1978 | v4l2_device_unregister(&vpfe_dev->v4l2_dev); | |
1979 | probe_out_video_release: | |
f0813b4c | 1980 | if (!video_is_registered(vpfe_dev->video_dev)) |
7da8a6cb MK |
1981 | video_device_release(vpfe_dev->video_dev); |
1982 | probe_out_release_irq: | |
1983 | free_irq(vpfe_dev->ccdc_irq0, vpfe_dev); | |
51444ea3 | 1984 | probe_free_ccdc_cfg_mem: |
7da8a6cb MK |
1985 | mutex_unlock(&ccdc_lock); |
1986 | kfree(ccdc_cfg); | |
1987 | probe_free_dev_mem: | |
1988 | kfree(vpfe_dev); | |
1989 | return ret; | |
1990 | } | |
1991 | ||
1992 | /* | |
1993 | * vpfe_remove : It un-register device from V4L2 driver | |
1994 | */ | |
9d893824 | 1995 | static int __devexit vpfe_remove(struct platform_device *pdev) |
7da8a6cb MK |
1996 | { |
1997 | struct vpfe_device *vpfe_dev = platform_get_drvdata(pdev); | |
7da8a6cb MK |
1998 | |
1999 | v4l2_info(pdev->dev.driver, "vpfe_remove\n"); | |
2000 | ||
2001 | free_irq(vpfe_dev->ccdc_irq0, vpfe_dev); | |
2002 | kfree(vpfe_dev->sd); | |
2003 | v4l2_device_unregister(&vpfe_dev->v4l2_dev); | |
2004 | video_unregister_device(vpfe_dev->video_dev); | |
7da8a6cb MK |
2005 | kfree(vpfe_dev); |
2006 | kfree(ccdc_cfg); | |
2007 | return 0; | |
2008 | } | |
2009 | ||
2010 | static int | |
2011 | vpfe_suspend(struct device *dev) | |
2012 | { | |
2013 | /* add suspend code here later */ | |
2014 | return -1; | |
2015 | } | |
2016 | ||
2017 | static int | |
2018 | vpfe_resume(struct device *dev) | |
2019 | { | |
2020 | /* add resume code here later */ | |
2021 | return -1; | |
2022 | } | |
2023 | ||
47145210 | 2024 | static const struct dev_pm_ops vpfe_dev_pm_ops = { |
7da8a6cb MK |
2025 | .suspend = vpfe_suspend, |
2026 | .resume = vpfe_resume, | |
2027 | }; | |
2028 | ||
2029 | static struct platform_driver vpfe_driver = { | |
2030 | .driver = { | |
2031 | .name = CAPTURE_DRV_NAME, | |
2032 | .owner = THIS_MODULE, | |
2033 | .pm = &vpfe_dev_pm_ops, | |
2034 | }, | |
2035 | .probe = vpfe_probe, | |
2036 | .remove = __devexit_p(vpfe_remove), | |
2037 | }; | |
2038 | ||
2039 | static __init int vpfe_init(void) | |
2040 | { | |
2041 | printk(KERN_NOTICE "vpfe_init\n"); | |
2042 | /* Register driver to the kernel */ | |
2043 | return platform_driver_register(&vpfe_driver); | |
2044 | } | |
2045 | ||
2046 | /* | |
2047 | * vpfe_cleanup : This function un-registers device driver | |
2048 | */ | |
2049 | static void vpfe_cleanup(void) | |
2050 | { | |
2051 | platform_driver_unregister(&vpfe_driver); | |
2052 | } | |
2053 | ||
2054 | module_init(vpfe_init); | |
2055 | module_exit(vpfe_cleanup); |