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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 | * | |
7da8a6cb MK |
14 | * Driver name : VPFE Capture driver |
15 | * VPFE Capture driver allows applications to capture and stream video | |
16 | * frames on DaVinci SoCs (DM6446, DM355 etc) from a YUV source such as | |
17 | * TVP5146 or Raw Bayer RGB image data from an image sensor | |
18 | * such as Microns' MT9T001, MT9T031 etc. | |
19 | * | |
20 | * These SoCs have, in common, a Video Processing Subsystem (VPSS) that | |
21 | * consists of a Video Processing Front End (VPFE) for capturing | |
22 | * video/raw image data and Video Processing Back End (VPBE) for displaying | |
23 | * YUV data through an in-built analog encoder or Digital LCD port. This | |
24 | * driver is for capture through VPFE. A typical EVM using these SoCs have | |
25 | * following high level configuration. | |
26 | * | |
27 | * | |
28 | * decoder(TVP5146/ YUV/ | |
29 | * MT9T001) --> Raw Bayer RGB ---> MUX -> VPFE (CCDC/ISIF) | |
30 | * data input | | | |
31 | * V | | |
32 | * SDRAM | | |
33 | * V | |
34 | * Image Processor | |
35 | * | | |
36 | * V | |
37 | * SDRAM | |
38 | * The data flow happens from a decoder connected to the VPFE over a | |
39 | * YUV embedded (BT.656/BT.1120) or separate sync or raw bayer rgb interface | |
40 | * and to the input of VPFE through an optional MUX (if more inputs are | |
41 | * to be interfaced on the EVM). The input data is first passed through | |
42 | * CCDC (CCD Controller, a.k.a Image Sensor Interface, ISIF). The CCDC | |
43 | * does very little or no processing on YUV data and does pre-process Raw | |
44 | * Bayer RGB data through modules such as Defect Pixel Correction (DFC) | |
45 | * Color Space Conversion (CSC), data gain/offset etc. After this, data | |
46 | * can be written to SDRAM or can be connected to the image processing | |
47 | * block such as IPIPE (on DM355 only). | |
48 | * | |
49 | * Features supported | |
50 | * - MMAP IO | |
51 | * - Capture using TVP5146 over BT.656 | |
52 | * - support for interfacing decoders using sub device model | |
53 | * - Work with DM355 or DM6446 CCDC to do Raw Bayer RGB/YUV | |
54 | * data capture to SDRAM. | |
55 | * TODO list | |
56 | * - Support multiple REQBUF after open | |
57 | * - Support for de-allocating buffers through REQBUF | |
58 | * - Support for Raw Bayer RGB capture | |
59 | * - Support for chaining Image Processor | |
60 | * - Support for static allocation of buffers | |
61 | * - Support for USERPTR IO | |
62 | * - Support for STREAMON before QBUF | |
63 | * - Support for control ioctls | |
64 | */ | |
65 | #include <linux/module.h> | |
5a0e3ad6 | 66 | #include <linux/slab.h> |
7da8a6cb MK |
67 | #include <linux/init.h> |
68 | #include <linux/platform_device.h> | |
69 | #include <linux/interrupt.h> | |
7da8a6cb MK |
70 | #include <media/v4l2-common.h> |
71 | #include <linux/io.h> | |
72 | #include <media/davinci/vpfe_capture.h> | |
73 | #include "ccdc_hw_device.h" | |
74 | ||
75 | static int debug; | |
76 | static u32 numbuffers = 3; | |
77 | static u32 bufsize = (720 * 576 * 2); | |
78 | ||
79 | module_param(numbuffers, uint, S_IRUGO); | |
80 | module_param(bufsize, uint, S_IRUGO); | |
81 | module_param(debug, int, 0644); | |
82 | ||
83 | MODULE_PARM_DESC(numbuffers, "buffer count (default:3)"); | |
84 | MODULE_PARM_DESC(bufsize, "buffer size in bytes (default:720 x 576 x 2)"); | |
85 | MODULE_PARM_DESC(debug, "Debug level 0-1"); | |
86 | ||
87 | MODULE_DESCRIPTION("VPFE Video for Linux Capture Driver"); | |
88 | MODULE_LICENSE("GPL"); | |
89 | MODULE_AUTHOR("Texas Instruments"); | |
90 | ||
91 | /* standard information */ | |
92 | struct vpfe_standard { | |
93 | v4l2_std_id std_id; | |
94 | unsigned int width; | |
95 | unsigned int height; | |
96 | struct v4l2_fract pixelaspect; | |
97 | /* 0 - progressive, 1 - interlaced */ | |
98 | int frame_format; | |
99 | }; | |
100 | ||
101 | /* ccdc configuration */ | |
102 | struct ccdc_config { | |
103 | /* This make sure vpfe is probed and ready to go */ | |
104 | int vpfe_probed; | |
105 | /* name of ccdc device */ | |
106 | char name[32]; | |
7da8a6cb MK |
107 | }; |
108 | ||
109 | /* data structures */ | |
110 | static struct vpfe_config_params config_params = { | |
111 | .min_numbuffers = 3, | |
112 | .numbuffers = 3, | |
113 | .min_bufsize = 720 * 480 * 2, | |
114 | .device_bufsize = 720 * 576 * 2, | |
115 | }; | |
116 | ||
117 | /* ccdc device registered */ | |
118 | static struct ccdc_hw_device *ccdc_dev; | |
119 | /* lock for accessing ccdc information */ | |
120 | static DEFINE_MUTEX(ccdc_lock); | |
121 | /* ccdc configuration */ | |
122 | static struct ccdc_config *ccdc_cfg; | |
123 | ||
47c0b565 | 124 | static const struct vpfe_standard vpfe_standards[] = { |
7da8a6cb MK |
125 | {V4L2_STD_525_60, 720, 480, {11, 10}, 1}, |
126 | {V4L2_STD_625_50, 720, 576, {54, 59}, 1}, | |
127 | }; | |
128 | ||
129 | /* Used when raw Bayer image from ccdc is directly captured to SDRAM */ | |
130 | static const struct vpfe_pixel_format vpfe_pix_fmts[] = { | |
131 | { | |
132 | .fmtdesc = { | |
133 | .index = 0, | |
134 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
135 | .description = "Bayer GrRBGb 8bit A-Law compr.", | |
136 | .pixelformat = V4L2_PIX_FMT_SBGGR8, | |
137 | }, | |
138 | .bpp = 1, | |
139 | }, | |
140 | { | |
141 | .fmtdesc = { | |
142 | .index = 1, | |
143 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
144 | .description = "Bayer GrRBGb - 16bit", | |
145 | .pixelformat = V4L2_PIX_FMT_SBGGR16, | |
146 | }, | |
147 | .bpp = 2, | |
148 | }, | |
149 | { | |
150 | .fmtdesc = { | |
151 | .index = 2, | |
152 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
153 | .description = "Bayer GrRBGb 8bit DPCM compr.", | |
154 | .pixelformat = V4L2_PIX_FMT_SGRBG10DPCM8, | |
155 | }, | |
156 | .bpp = 1, | |
157 | }, | |
158 | { | |
159 | .fmtdesc = { | |
160 | .index = 3, | |
161 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
162 | .description = "YCbCr 4:2:2 Interleaved UYVY", | |
163 | .pixelformat = V4L2_PIX_FMT_UYVY, | |
164 | }, | |
165 | .bpp = 2, | |
166 | }, | |
167 | { | |
168 | .fmtdesc = { | |
169 | .index = 4, | |
170 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
171 | .description = "YCbCr 4:2:2 Interleaved YUYV", | |
172 | .pixelformat = V4L2_PIX_FMT_YUYV, | |
173 | }, | |
174 | .bpp = 2, | |
175 | }, | |
176 | { | |
177 | .fmtdesc = { | |
178 | .index = 5, | |
179 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, | |
180 | .description = "Y/CbCr 4:2:0 - Semi planar", | |
181 | .pixelformat = V4L2_PIX_FMT_NV12, | |
182 | }, | |
183 | .bpp = 1, | |
184 | }, | |
185 | }; | |
186 | ||
187 | /* | |
188 | * vpfe_lookup_pix_format() | |
189 | * lookup an entry in the vpfe pix format table based on pix_format | |
190 | */ | |
191 | static const struct vpfe_pixel_format *vpfe_lookup_pix_format(u32 pix_format) | |
192 | { | |
193 | int i; | |
194 | ||
195 | for (i = 0; i < ARRAY_SIZE(vpfe_pix_fmts); i++) { | |
196 | if (pix_format == vpfe_pix_fmts[i].fmtdesc.pixelformat) | |
197 | return &vpfe_pix_fmts[i]; | |
198 | } | |
199 | return NULL; | |
200 | } | |
201 | ||
202 | /* | |
203 | * vpfe_register_ccdc_device. CCDC module calls this to | |
204 | * register with vpfe capture | |
205 | */ | |
206 | int vpfe_register_ccdc_device(struct ccdc_hw_device *dev) | |
207 | { | |
208 | int ret = 0; | |
209 | printk(KERN_NOTICE "vpfe_register_ccdc_device: %s\n", dev->name); | |
210 | ||
211 | BUG_ON(!dev->hw_ops.open); | |
212 | BUG_ON(!dev->hw_ops.enable); | |
213 | BUG_ON(!dev->hw_ops.set_hw_if_params); | |
214 | BUG_ON(!dev->hw_ops.configure); | |
215 | BUG_ON(!dev->hw_ops.set_buftype); | |
216 | BUG_ON(!dev->hw_ops.get_buftype); | |
217 | BUG_ON(!dev->hw_ops.enum_pix); | |
218 | BUG_ON(!dev->hw_ops.set_frame_format); | |
219 | BUG_ON(!dev->hw_ops.get_frame_format); | |
220 | BUG_ON(!dev->hw_ops.get_pixel_format); | |
221 | BUG_ON(!dev->hw_ops.set_pixel_format); | |
7da8a6cb MK |
222 | BUG_ON(!dev->hw_ops.set_image_window); |
223 | BUG_ON(!dev->hw_ops.get_image_window); | |
224 | BUG_ON(!dev->hw_ops.get_line_length); | |
7da8a6cb MK |
225 | BUG_ON(!dev->hw_ops.getfid); |
226 | ||
227 | mutex_lock(&ccdc_lock); | |
c580f295 | 228 | if (!ccdc_cfg) { |
7da8a6cb MK |
229 | /* |
230 | * TODO. Will this ever happen? if so, we need to fix it. | |
231 | * Proabably we need to add the request to a linked list and | |
232 | * walk through it during vpfe probe | |
233 | */ | |
234 | printk(KERN_ERR "vpfe capture not initialized\n"); | |
51444ea3 | 235 | ret = -EFAULT; |
7da8a6cb MK |
236 | goto unlock; |
237 | } | |
238 | ||
239 | if (strcmp(dev->name, ccdc_cfg->name)) { | |
240 | /* ignore this ccdc */ | |
51444ea3 | 241 | ret = -EINVAL; |
7da8a6cb MK |
242 | goto unlock; |
243 | } | |
244 | ||
245 | if (ccdc_dev) { | |
246 | printk(KERN_ERR "ccdc already registered\n"); | |
51444ea3 | 247 | ret = -EINVAL; |
7da8a6cb MK |
248 | goto unlock; |
249 | } | |
250 | ||
251 | ccdc_dev = dev; | |
7da8a6cb MK |
252 | unlock: |
253 | mutex_unlock(&ccdc_lock); | |
254 | return ret; | |
255 | } | |
256 | EXPORT_SYMBOL(vpfe_register_ccdc_device); | |
257 | ||
258 | /* | |
259 | * vpfe_unregister_ccdc_device. CCDC module calls this to | |
260 | * unregister with vpfe capture | |
261 | */ | |
262 | void vpfe_unregister_ccdc_device(struct ccdc_hw_device *dev) | |
263 | { | |
c580f295 | 264 | if (!dev) { |
7da8a6cb MK |
265 | printk(KERN_ERR "invalid ccdc device ptr\n"); |
266 | return; | |
267 | } | |
268 | ||
269 | printk(KERN_NOTICE "vpfe_unregister_ccdc_device, dev->name = %s\n", | |
270 | dev->name); | |
271 | ||
272 | if (strcmp(dev->name, ccdc_cfg->name)) { | |
273 | /* ignore this ccdc */ | |
274 | return; | |
275 | } | |
276 | ||
277 | mutex_lock(&ccdc_lock); | |
278 | ccdc_dev = NULL; | |
279 | mutex_unlock(&ccdc_lock); | |
7da8a6cb MK |
280 | } |
281 | EXPORT_SYMBOL(vpfe_unregister_ccdc_device); | |
282 | ||
7da8a6cb MK |
283 | /* |
284 | * vpfe_config_ccdc_image_format() | |
285 | * For a pix format, configure ccdc to setup the capture | |
286 | */ | |
287 | static int vpfe_config_ccdc_image_format(struct vpfe_device *vpfe_dev) | |
288 | { | |
289 | enum ccdc_frmfmt frm_fmt = CCDC_FRMFMT_INTERLACED; | |
290 | int ret = 0; | |
291 | ||
292 | if (ccdc_dev->hw_ops.set_pixel_format( | |
293 | vpfe_dev->fmt.fmt.pix.pixelformat) < 0) { | |
294 | v4l2_err(&vpfe_dev->v4l2_dev, | |
295 | "couldn't set pix format in ccdc\n"); | |
296 | return -EINVAL; | |
297 | } | |
298 | /* configure the image window */ | |
299 | ccdc_dev->hw_ops.set_image_window(&vpfe_dev->crop); | |
300 | ||
301 | switch (vpfe_dev->fmt.fmt.pix.field) { | |
302 | case V4L2_FIELD_INTERLACED: | |
303 | /* do nothing, since it is default */ | |
304 | ret = ccdc_dev->hw_ops.set_buftype( | |
305 | CCDC_BUFTYPE_FLD_INTERLEAVED); | |
306 | break; | |
307 | case V4L2_FIELD_NONE: | |
308 | frm_fmt = CCDC_FRMFMT_PROGRESSIVE; | |
309 | /* buffer type only applicable for interlaced scan */ | |
310 | break; | |
311 | case V4L2_FIELD_SEQ_TB: | |
312 | ret = ccdc_dev->hw_ops.set_buftype( | |
313 | CCDC_BUFTYPE_FLD_SEPARATED); | |
314 | break; | |
315 | default: | |
316 | return -EINVAL; | |
317 | } | |
318 | ||
319 | /* set the frame format */ | |
320 | if (!ret) | |
321 | ret = ccdc_dev->hw_ops.set_frame_format(frm_fmt); | |
322 | return ret; | |
323 | } | |
324 | /* | |
325 | * vpfe_config_image_format() | |
326 | * For a given standard, this functions sets up the default | |
327 | * pix format & crop values in the vpfe device and ccdc. It first | |
328 | * starts with defaults based values from the standard table. | |
da298c6d | 329 | * It then checks if sub device supports get_fmt and then override the |
7da8a6cb MK |
330 | * values based on that.Sets crop values to match with scan resolution |
331 | * starting at 0,0. It calls vpfe_config_ccdc_image_format() set the | |
332 | * values in ccdc | |
333 | */ | |
334 | static int vpfe_config_image_format(struct vpfe_device *vpfe_dev, | |
314527ac | 335 | v4l2_std_id std_id) |
7da8a6cb MK |
336 | { |
337 | struct vpfe_subdev_info *sdinfo = vpfe_dev->current_subdev; | |
da298c6d HV |
338 | struct v4l2_subdev_format fmt = { |
339 | .which = V4L2_SUBDEV_FORMAT_ACTIVE, | |
340 | }; | |
341 | struct v4l2_mbus_framefmt *mbus_fmt = &fmt.format; | |
d3ca7759 | 342 | struct v4l2_pix_format *pix = &vpfe_dev->fmt.fmt.pix; |
2a0de2c8 | 343 | int i, ret; |
7da8a6cb MK |
344 | |
345 | for (i = 0; i < ARRAY_SIZE(vpfe_standards); i++) { | |
314527ac | 346 | if (vpfe_standards[i].std_id & std_id) { |
7da8a6cb MK |
347 | vpfe_dev->std_info.active_pixels = |
348 | vpfe_standards[i].width; | |
349 | vpfe_dev->std_info.active_lines = | |
350 | vpfe_standards[i].height; | |
351 | vpfe_dev->std_info.frame_format = | |
352 | vpfe_standards[i].frame_format; | |
353 | vpfe_dev->std_index = i; | |
354 | break; | |
355 | } | |
356 | } | |
357 | ||
358 | if (i == ARRAY_SIZE(vpfe_standards)) { | |
359 | v4l2_err(&vpfe_dev->v4l2_dev, "standard not supported\n"); | |
360 | return -EINVAL; | |
361 | } | |
362 | ||
363 | vpfe_dev->crop.top = 0; | |
364 | vpfe_dev->crop.left = 0; | |
365 | vpfe_dev->crop.width = vpfe_dev->std_info.active_pixels; | |
366 | vpfe_dev->crop.height = vpfe_dev->std_info.active_lines; | |
d3ca7759 HV |
367 | pix->width = vpfe_dev->crop.width; |
368 | pix->height = vpfe_dev->crop.height; | |
7da8a6cb MK |
369 | |
370 | /* first field and frame format based on standard frame format */ | |
371 | if (vpfe_dev->std_info.frame_format) { | |
d3ca7759 | 372 | pix->field = V4L2_FIELD_INTERLACED; |
7da8a6cb | 373 | /* assume V4L2_PIX_FMT_UYVY as default */ |
d3ca7759 | 374 | pix->pixelformat = V4L2_PIX_FMT_UYVY; |
da298c6d | 375 | v4l2_fill_mbus_format(mbus_fmt, pix, |
27ffaeb0 | 376 | MEDIA_BUS_FMT_YUYV10_2X10); |
7da8a6cb | 377 | } else { |
d3ca7759 | 378 | pix->field = V4L2_FIELD_NONE; |
7da8a6cb | 379 | /* assume V4L2_PIX_FMT_SBGGR8 */ |
d3ca7759 | 380 | pix->pixelformat = V4L2_PIX_FMT_SBGGR8; |
da298c6d | 381 | v4l2_fill_mbus_format(mbus_fmt, pix, |
27ffaeb0 | 382 | MEDIA_BUS_FMT_SBGGR8_1X8); |
7da8a6cb MK |
383 | } |
384 | ||
da298c6d | 385 | /* if sub device supports get_fmt, override the defaults */ |
7da8a6cb | 386 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, |
da298c6d | 387 | sdinfo->grp_id, pad, get_fmt, NULL, &fmt); |
7da8a6cb MK |
388 | |
389 | if (ret && ret != -ENOIOCTLCMD) { | |
390 | v4l2_err(&vpfe_dev->v4l2_dev, | |
da298c6d | 391 | "error in getting get_fmt from sub device\n"); |
7da8a6cb MK |
392 | return ret; |
393 | } | |
da298c6d | 394 | v4l2_fill_pix_format(pix, mbus_fmt); |
d3ca7759 HV |
395 | pix->bytesperline = pix->width * 2; |
396 | pix->sizeimage = pix->bytesperline * pix->height; | |
7da8a6cb MK |
397 | |
398 | /* Sets the values in CCDC */ | |
399 | ret = vpfe_config_ccdc_image_format(vpfe_dev); | |
400 | if (ret) | |
401 | return ret; | |
402 | ||
403 | /* Update the values of sizeimage and bytesperline */ | |
692f6375 DC |
404 | pix->bytesperline = ccdc_dev->hw_ops.get_line_length(); |
405 | pix->sizeimage = pix->bytesperline * pix->height; | |
406 | ||
407 | return 0; | |
7da8a6cb MK |
408 | } |
409 | ||
410 | static int vpfe_initialize_device(struct vpfe_device *vpfe_dev) | |
411 | { | |
2a0de2c8 | 412 | int ret; |
7da8a6cb MK |
413 | |
414 | /* set first input of current subdevice as the current input */ | |
415 | vpfe_dev->current_input = 0; | |
416 | ||
417 | /* set default standard */ | |
418 | vpfe_dev->std_index = 0; | |
419 | ||
420 | /* Configure the default format information */ | |
421 | ret = vpfe_config_image_format(vpfe_dev, | |
314527ac | 422 | vpfe_standards[vpfe_dev->std_index].std_id); |
7da8a6cb MK |
423 | if (ret) |
424 | return ret; | |
425 | ||
426 | /* now open the ccdc device to initialize it */ | |
427 | mutex_lock(&ccdc_lock); | |
c580f295 | 428 | if (!ccdc_dev) { |
7da8a6cb MK |
429 | v4l2_err(&vpfe_dev->v4l2_dev, "ccdc device not registered\n"); |
430 | ret = -ENODEV; | |
431 | goto unlock; | |
432 | } | |
433 | ||
434 | if (!try_module_get(ccdc_dev->owner)) { | |
435 | v4l2_err(&vpfe_dev->v4l2_dev, "Couldn't lock ccdc module\n"); | |
436 | ret = -ENODEV; | |
437 | goto unlock; | |
438 | } | |
439 | ret = ccdc_dev->hw_ops.open(vpfe_dev->pdev); | |
440 | if (!ret) | |
441 | vpfe_dev->initialized = 1; | |
085b54a2 VH |
442 | |
443 | /* Clear all VPFE/CCDC interrupts */ | |
444 | if (vpfe_dev->cfg->clr_intr) | |
445 | vpfe_dev->cfg->clr_intr(-1); | |
446 | ||
7da8a6cb MK |
447 | unlock: |
448 | mutex_unlock(&ccdc_lock); | |
449 | return ret; | |
450 | } | |
451 | ||
452 | /* | |
453 | * vpfe_open : It creates object of file handle structure and | |
454 | * stores it in private_data member of filepointer | |
455 | */ | |
456 | static int vpfe_open(struct file *file) | |
457 | { | |
458 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
3bdaa382 | 459 | struct video_device *vdev = video_devdata(file); |
7da8a6cb MK |
460 | struct vpfe_fh *fh; |
461 | ||
462 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_open\n"); | |
463 | ||
464 | if (!vpfe_dev->cfg->num_subdevs) { | |
465 | v4l2_err(&vpfe_dev->v4l2_dev, "No decoder registered\n"); | |
466 | return -ENODEV; | |
467 | } | |
468 | ||
469 | /* Allocate memory for the file handle object */ | |
1d3811d3 | 470 | fh = kmalloc(sizeof(*fh), GFP_KERNEL); |
11691f0e | 471 | if (!fh) |
7da8a6cb | 472 | return -ENOMEM; |
11691f0e | 473 | |
7da8a6cb MK |
474 | /* store pointer to fh in private_data member of file */ |
475 | file->private_data = fh; | |
476 | fh->vpfe_dev = vpfe_dev; | |
3bdaa382 | 477 | v4l2_fh_init(&fh->fh, vdev); |
7da8a6cb MK |
478 | mutex_lock(&vpfe_dev->lock); |
479 | /* If decoder is not initialized. initialize it */ | |
480 | if (!vpfe_dev->initialized) { | |
481 | if (vpfe_initialize_device(vpfe_dev)) { | |
482 | mutex_unlock(&vpfe_dev->lock); | |
d39e74fd SV |
483 | v4l2_fh_exit(&fh->fh); |
484 | kfree(fh); | |
7da8a6cb MK |
485 | return -ENODEV; |
486 | } | |
487 | } | |
488 | /* Increment device usrs counter */ | |
489 | vpfe_dev->usrs++; | |
490 | /* Set io_allowed member to false */ | |
491 | fh->io_allowed = 0; | |
3bdaa382 | 492 | v4l2_fh_add(&fh->fh); |
7da8a6cb MK |
493 | mutex_unlock(&vpfe_dev->lock); |
494 | return 0; | |
495 | } | |
496 | ||
497 | static void vpfe_schedule_next_buffer(struct vpfe_device *vpfe_dev) | |
498 | { | |
499 | unsigned long addr; | |
500 | ||
501 | vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next, | |
502 | struct videobuf_buffer, queue); | |
503 | list_del(&vpfe_dev->next_frm->queue); | |
504 | vpfe_dev->next_frm->state = VIDEOBUF_ACTIVE; | |
505 | addr = videobuf_to_dma_contig(vpfe_dev->next_frm); | |
844cc0dc VH |
506 | |
507 | ccdc_dev->hw_ops.setfbaddr(addr); | |
508 | } | |
509 | ||
510 | static void vpfe_schedule_bottom_field(struct vpfe_device *vpfe_dev) | |
511 | { | |
512 | unsigned long addr; | |
513 | ||
514 | addr = videobuf_to_dma_contig(vpfe_dev->cur_frm); | |
515 | addr += vpfe_dev->field_off; | |
7da8a6cb MK |
516 | ccdc_dev->hw_ops.setfbaddr(addr); |
517 | } | |
518 | ||
519 | static void vpfe_process_buffer_complete(struct vpfe_device *vpfe_dev) | |
520 | { | |
8e6057b5 | 521 | v4l2_get_timestamp(&vpfe_dev->cur_frm->ts); |
7da8a6cb MK |
522 | vpfe_dev->cur_frm->state = VIDEOBUF_DONE; |
523 | vpfe_dev->cur_frm->size = vpfe_dev->fmt.fmt.pix.sizeimage; | |
524 | wake_up_interruptible(&vpfe_dev->cur_frm->done); | |
525 | vpfe_dev->cur_frm = vpfe_dev->next_frm; | |
526 | } | |
527 | ||
528 | /* ISR for VINT0*/ | |
529 | static irqreturn_t vpfe_isr(int irq, void *dev_id) | |
530 | { | |
531 | struct vpfe_device *vpfe_dev = dev_id; | |
532 | enum v4l2_field field; | |
7da8a6cb MK |
533 | int fid; |
534 | ||
535 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nStarting vpfe_isr...\n"); | |
536 | field = vpfe_dev->fmt.fmt.pix.field; | |
537 | ||
538 | /* if streaming not started, don't do anything */ | |
539 | if (!vpfe_dev->started) | |
085b54a2 | 540 | goto clear_intr; |
7da8a6cb MK |
541 | |
542 | /* only for 6446 this will be applicable */ | |
c580f295 | 543 | if (ccdc_dev->hw_ops.reset) |
7da8a6cb MK |
544 | ccdc_dev->hw_ops.reset(); |
545 | ||
546 | if (field == V4L2_FIELD_NONE) { | |
547 | /* handle progressive frame capture */ | |
548 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
549 | "frame format is progressive...\n"); | |
550 | if (vpfe_dev->cur_frm != vpfe_dev->next_frm) | |
551 | vpfe_process_buffer_complete(vpfe_dev); | |
085b54a2 | 552 | goto clear_intr; |
7da8a6cb MK |
553 | } |
554 | ||
555 | /* interlaced or TB capture check which field we are in hardware */ | |
556 | fid = ccdc_dev->hw_ops.getfid(); | |
557 | ||
558 | /* switch the software maintained field id */ | |
559 | vpfe_dev->field_id ^= 1; | |
560 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "field id = %x:%x.\n", | |
561 | fid, vpfe_dev->field_id); | |
562 | if (fid == vpfe_dev->field_id) { | |
563 | /* we are in-sync here,continue */ | |
564 | if (fid == 0) { | |
565 | /* | |
566 | * One frame is just being captured. If the next frame | |
567 | * is available, release the current frame and move on | |
568 | */ | |
569 | if (vpfe_dev->cur_frm != vpfe_dev->next_frm) | |
570 | vpfe_process_buffer_complete(vpfe_dev); | |
571 | /* | |
572 | * based on whether the two fields are stored | |
573 | * interleavely or separately in memory, reconfigure | |
574 | * the CCDC memory address | |
575 | */ | |
b8990656 | 576 | if (field == V4L2_FIELD_SEQ_TB) |
844cc0dc | 577 | vpfe_schedule_bottom_field(vpfe_dev); |
085b54a2 | 578 | goto clear_intr; |
7da8a6cb MK |
579 | } |
580 | /* | |
581 | * if one field is just being captured configure | |
582 | * the next frame get the next frame from the empty | |
583 | * queue if no frame is available hold on to the | |
584 | * current buffer | |
585 | */ | |
586 | spin_lock(&vpfe_dev->dma_queue_lock); | |
587 | if (!list_empty(&vpfe_dev->dma_queue) && | |
588 | vpfe_dev->cur_frm == vpfe_dev->next_frm) | |
589 | vpfe_schedule_next_buffer(vpfe_dev); | |
590 | spin_unlock(&vpfe_dev->dma_queue_lock); | |
591 | } else if (fid == 0) { | |
592 | /* | |
593 | * out of sync. Recover from any hardware out-of-sync. | |
594 | * May loose one frame | |
595 | */ | |
596 | vpfe_dev->field_id = fid; | |
597 | } | |
085b54a2 VH |
598 | clear_intr: |
599 | if (vpfe_dev->cfg->clr_intr) | |
600 | vpfe_dev->cfg->clr_intr(irq); | |
601 | ||
7da8a6cb MK |
602 | return IRQ_HANDLED; |
603 | } | |
604 | ||
605 | /* vdint1_isr - isr handler for VINT1 interrupt */ | |
606 | static irqreturn_t vdint1_isr(int irq, void *dev_id) | |
607 | { | |
608 | struct vpfe_device *vpfe_dev = dev_id; | |
609 | ||
610 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nInside vdint1_isr...\n"); | |
611 | ||
612 | /* if streaming not started, don't do anything */ | |
085b54a2 VH |
613 | if (!vpfe_dev->started) { |
614 | if (vpfe_dev->cfg->clr_intr) | |
615 | vpfe_dev->cfg->clr_intr(irq); | |
7da8a6cb | 616 | return IRQ_HANDLED; |
085b54a2 | 617 | } |
7da8a6cb MK |
618 | |
619 | spin_lock(&vpfe_dev->dma_queue_lock); | |
620 | if ((vpfe_dev->fmt.fmt.pix.field == V4L2_FIELD_NONE) && | |
621 | !list_empty(&vpfe_dev->dma_queue) && | |
622 | vpfe_dev->cur_frm == vpfe_dev->next_frm) | |
623 | vpfe_schedule_next_buffer(vpfe_dev); | |
624 | spin_unlock(&vpfe_dev->dma_queue_lock); | |
085b54a2 VH |
625 | |
626 | if (vpfe_dev->cfg->clr_intr) | |
627 | vpfe_dev->cfg->clr_intr(irq); | |
628 | ||
7da8a6cb MK |
629 | return IRQ_HANDLED; |
630 | } | |
631 | ||
632 | static void vpfe_detach_irq(struct vpfe_device *vpfe_dev) | |
633 | { | |
634 | enum ccdc_frmfmt frame_format; | |
635 | ||
636 | frame_format = ccdc_dev->hw_ops.get_frame_format(); | |
637 | if (frame_format == CCDC_FRMFMT_PROGRESSIVE) | |
1ead696b | 638 | free_irq(vpfe_dev->ccdc_irq1, vpfe_dev); |
7da8a6cb MK |
639 | } |
640 | ||
641 | static int vpfe_attach_irq(struct vpfe_device *vpfe_dev) | |
642 | { | |
643 | enum ccdc_frmfmt frame_format; | |
644 | ||
645 | frame_format = ccdc_dev->hw_ops.get_frame_format(); | |
646 | if (frame_format == CCDC_FRMFMT_PROGRESSIVE) { | |
647 | return request_irq(vpfe_dev->ccdc_irq1, vdint1_isr, | |
d8c279a0 | 648 | 0, "vpfe_capture1", |
7da8a6cb MK |
649 | vpfe_dev); |
650 | } | |
651 | return 0; | |
652 | } | |
653 | ||
654 | /* vpfe_stop_ccdc_capture: stop streaming in ccdc/isif */ | |
655 | static void vpfe_stop_ccdc_capture(struct vpfe_device *vpfe_dev) | |
656 | { | |
657 | vpfe_dev->started = 0; | |
658 | ccdc_dev->hw_ops.enable(0); | |
659 | if (ccdc_dev->hw_ops.enable_out_to_sdram) | |
660 | ccdc_dev->hw_ops.enable_out_to_sdram(0); | |
661 | } | |
662 | ||
663 | /* | |
664 | * vpfe_release : This function deletes buffer queue, frees the | |
665 | * buffers and the vpfe file handle | |
666 | */ | |
667 | static int vpfe_release(struct file *file) | |
668 | { | |
669 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
670 | struct vpfe_fh *fh = file->private_data; | |
671 | struct vpfe_subdev_info *sdinfo; | |
672 | int ret; | |
673 | ||
674 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_release\n"); | |
675 | ||
676 | /* Get the device lock */ | |
677 | mutex_lock(&vpfe_dev->lock); | |
678 | /* if this instance is doing IO */ | |
679 | if (fh->io_allowed) { | |
680 | if (vpfe_dev->started) { | |
681 | sdinfo = vpfe_dev->current_subdev; | |
682 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, | |
683 | sdinfo->grp_id, | |
684 | video, s_stream, 0); | |
685 | if (ret && (ret != -ENOIOCTLCMD)) | |
686 | v4l2_err(&vpfe_dev->v4l2_dev, | |
687 | "stream off failed in subdev\n"); | |
688 | vpfe_stop_ccdc_capture(vpfe_dev); | |
689 | vpfe_detach_irq(vpfe_dev); | |
690 | videobuf_streamoff(&vpfe_dev->buffer_queue); | |
691 | } | |
692 | vpfe_dev->io_usrs = 0; | |
693 | vpfe_dev->numbuffers = config_params.numbuffers; | |
c1d1e40b LP |
694 | videobuf_stop(&vpfe_dev->buffer_queue); |
695 | videobuf_mmap_free(&vpfe_dev->buffer_queue); | |
7da8a6cb MK |
696 | } |
697 | ||
698 | /* Decrement device usrs counter */ | |
699 | vpfe_dev->usrs--; | |
3bdaa382 LP |
700 | v4l2_fh_del(&fh->fh); |
701 | v4l2_fh_exit(&fh->fh); | |
7da8a6cb MK |
702 | /* If this is the last file handle */ |
703 | if (!vpfe_dev->usrs) { | |
704 | vpfe_dev->initialized = 0; | |
705 | if (ccdc_dev->hw_ops.close) | |
706 | ccdc_dev->hw_ops.close(vpfe_dev->pdev); | |
707 | module_put(ccdc_dev->owner); | |
708 | } | |
709 | mutex_unlock(&vpfe_dev->lock); | |
710 | file->private_data = NULL; | |
711 | /* Free memory allocated to file handle object */ | |
712 | kfree(fh); | |
713 | return 0; | |
714 | } | |
715 | ||
716 | /* | |
717 | * vpfe_mmap : It is used to map kernel space buffers | |
718 | * into user spaces | |
719 | */ | |
720 | static int vpfe_mmap(struct file *file, struct vm_area_struct *vma) | |
721 | { | |
722 | /* Get the device object and file handle object */ | |
723 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
724 | ||
725 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_mmap\n"); | |
726 | ||
727 | return videobuf_mmap_mapper(&vpfe_dev->buffer_queue, vma); | |
728 | } | |
729 | ||
730 | /* | |
731 | * vpfe_poll: It is used for select/poll system call | |
732 | */ | |
733 | static unsigned int vpfe_poll(struct file *file, poll_table *wait) | |
734 | { | |
735 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
736 | ||
737 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_poll\n"); | |
738 | ||
739 | if (vpfe_dev->started) | |
740 | return videobuf_poll_stream(file, | |
741 | &vpfe_dev->buffer_queue, wait); | |
742 | return 0; | |
743 | } | |
744 | ||
745 | /* vpfe capture driver file operations */ | |
746 | static const struct v4l2_file_operations vpfe_fops = { | |
747 | .owner = THIS_MODULE, | |
748 | .open = vpfe_open, | |
749 | .release = vpfe_release, | |
750 | .unlocked_ioctl = video_ioctl2, | |
751 | .mmap = vpfe_mmap, | |
752 | .poll = vpfe_poll | |
753 | }; | |
754 | ||
755 | /* | |
756 | * vpfe_check_format() | |
757 | * This function adjust the input pixel format as per hardware | |
758 | * capabilities and update the same in pixfmt. | |
759 | * Following algorithm used :- | |
760 | * | |
761 | * If given pixformat is not in the vpfe list of pix formats or not | |
762 | * supported by the hardware, current value of pixformat in the device | |
763 | * is used | |
764 | * If given field is not supported, then current field is used. If field | |
765 | * is different from current, then it is matched with that from sub device. | |
766 | * Minimum height is 2 lines for interlaced or tb field and 1 line for | |
767 | * progressive. Maximum height is clamped to active active lines of scan | |
768 | * Minimum width is 32 bytes in memory and width is clamped to active | |
769 | * pixels of scan. | |
770 | * bytesperline is a multiple of 32. | |
771 | */ | |
772 | static const struct vpfe_pixel_format * | |
773 | vpfe_check_format(struct vpfe_device *vpfe_dev, | |
774 | struct v4l2_pix_format *pixfmt) | |
775 | { | |
776 | u32 min_height = 1, min_width = 32, max_width, max_height; | |
777 | const struct vpfe_pixel_format *vpfe_pix_fmt; | |
778 | u32 pix; | |
779 | int temp, found; | |
780 | ||
781 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
c580f295 | 782 | if (!vpfe_pix_fmt) { |
7da8a6cb MK |
783 | /* |
784 | * use current pixel format in the vpfe device. We | |
785 | * will find this pix format in the table | |
786 | */ | |
787 | pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat; | |
788 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
789 | } | |
790 | ||
791 | /* check if hw supports it */ | |
792 | temp = 0; | |
793 | found = 0; | |
794 | while (ccdc_dev->hw_ops.enum_pix(&pix, temp) >= 0) { | |
795 | if (vpfe_pix_fmt->fmtdesc.pixelformat == pix) { | |
796 | found = 1; | |
797 | break; | |
798 | } | |
799 | temp++; | |
800 | } | |
801 | ||
802 | if (!found) { | |
803 | /* use current pixel format */ | |
804 | pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat; | |
805 | /* | |
806 | * Since this is currently used in the vpfe device, we | |
807 | * will find this pix format in the table | |
808 | */ | |
809 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
810 | } | |
811 | ||
812 | /* check what field format is supported */ | |
813 | if (pixfmt->field == V4L2_FIELD_ANY) { | |
814 | /* if field is any, use current value as default */ | |
815 | pixfmt->field = vpfe_dev->fmt.fmt.pix.field; | |
816 | } | |
817 | ||
818 | /* | |
819 | * if field is not same as current field in the vpfe device | |
820 | * try matching the field with the sub device field | |
821 | */ | |
822 | if (vpfe_dev->fmt.fmt.pix.field != pixfmt->field) { | |
823 | /* | |
824 | * If field value is not in the supported fields, use current | |
825 | * field used in the device as default | |
826 | */ | |
827 | switch (pixfmt->field) { | |
828 | case V4L2_FIELD_INTERLACED: | |
829 | case V4L2_FIELD_SEQ_TB: | |
830 | /* if sub device is supporting progressive, use that */ | |
831 | if (!vpfe_dev->std_info.frame_format) | |
832 | pixfmt->field = V4L2_FIELD_NONE; | |
833 | break; | |
834 | case V4L2_FIELD_NONE: | |
835 | if (vpfe_dev->std_info.frame_format) | |
836 | pixfmt->field = V4L2_FIELD_INTERLACED; | |
837 | break; | |
838 | ||
839 | default: | |
840 | /* use current field as default */ | |
841 | pixfmt->field = vpfe_dev->fmt.fmt.pix.field; | |
842 | break; | |
843 | } | |
844 | } | |
845 | ||
846 | /* Now adjust image resolutions supported */ | |
847 | if (pixfmt->field == V4L2_FIELD_INTERLACED || | |
848 | pixfmt->field == V4L2_FIELD_SEQ_TB) | |
849 | min_height = 2; | |
850 | ||
851 | max_width = vpfe_dev->std_info.active_pixels; | |
852 | max_height = vpfe_dev->std_info.active_lines; | |
853 | min_width /= vpfe_pix_fmt->bpp; | |
854 | ||
855 | v4l2_info(&vpfe_dev->v4l2_dev, "width = %d, height = %d, bpp = %d\n", | |
856 | pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp); | |
857 | ||
858 | pixfmt->width = clamp((pixfmt->width), min_width, max_width); | |
859 | pixfmt->height = clamp((pixfmt->height), min_height, max_height); | |
860 | ||
861 | /* If interlaced, adjust height to be a multiple of 2 */ | |
862 | if (pixfmt->field == V4L2_FIELD_INTERLACED) | |
863 | pixfmt->height &= (~1); | |
864 | /* | |
865 | * recalculate bytesperline and sizeimage since width | |
866 | * and height might have changed | |
867 | */ | |
868 | pixfmt->bytesperline = (((pixfmt->width * vpfe_pix_fmt->bpp) + 31) | |
869 | & ~31); | |
870 | if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) | |
871 | pixfmt->sizeimage = | |
872 | pixfmt->bytesperline * pixfmt->height + | |
873 | ((pixfmt->bytesperline * pixfmt->height) >> 1); | |
874 | else | |
875 | pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; | |
876 | ||
ded026e0 | 877 | v4l2_info(&vpfe_dev->v4l2_dev, "adjusted width = %d, height = %d, bpp = %d, bytesperline = %d, sizeimage = %d\n", |
7da8a6cb MK |
878 | pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp, |
879 | pixfmt->bytesperline, pixfmt->sizeimage); | |
880 | return vpfe_pix_fmt; | |
881 | } | |
882 | ||
883 | static int vpfe_querycap(struct file *file, void *priv, | |
884 | struct v4l2_capability *cap) | |
885 | { | |
886 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
887 | ||
888 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querycap\n"); | |
889 | ||
8c17e5e3 HV |
890 | cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; |
891 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; | |
7da8a6cb MK |
892 | strlcpy(cap->driver, CAPTURE_DRV_NAME, sizeof(cap->driver)); |
893 | strlcpy(cap->bus_info, "VPFE", sizeof(cap->bus_info)); | |
894 | strlcpy(cap->card, vpfe_dev->cfg->card_name, sizeof(cap->card)); | |
895 | return 0; | |
896 | } | |
897 | ||
898 | static int vpfe_g_fmt_vid_cap(struct file *file, void *priv, | |
899 | struct v4l2_format *fmt) | |
900 | { | |
901 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
7da8a6cb MK |
902 | |
903 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_fmt_vid_cap\n"); | |
904 | /* Fill in the information about format */ | |
905 | *fmt = vpfe_dev->fmt; | |
b80cefb4 | 906 | return 0; |
7da8a6cb MK |
907 | } |
908 | ||
909 | static int vpfe_enum_fmt_vid_cap(struct file *file, void *priv, | |
910 | struct v4l2_fmtdesc *fmt) | |
911 | { | |
912 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
913 | const struct vpfe_pixel_format *pix_fmt; | |
914 | int temp_index; | |
915 | u32 pix; | |
916 | ||
917 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_fmt_vid_cap\n"); | |
918 | ||
919 | if (ccdc_dev->hw_ops.enum_pix(&pix, fmt->index) < 0) | |
920 | return -EINVAL; | |
921 | ||
922 | /* Fill in the information about format */ | |
923 | pix_fmt = vpfe_lookup_pix_format(pix); | |
c580f295 | 924 | if (pix_fmt) { |
7da8a6cb MK |
925 | temp_index = fmt->index; |
926 | *fmt = pix_fmt->fmtdesc; | |
927 | fmt->index = temp_index; | |
928 | return 0; | |
929 | } | |
930 | return -EINVAL; | |
931 | } | |
932 | ||
933 | static int vpfe_s_fmt_vid_cap(struct file *file, void *priv, | |
934 | struct v4l2_format *fmt) | |
935 | { | |
936 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
937 | const struct vpfe_pixel_format *pix_fmts; | |
2a0de2c8 | 938 | int ret; |
7da8a6cb MK |
939 | |
940 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_fmt_vid_cap\n"); | |
941 | ||
942 | /* If streaming is started, return error */ | |
943 | if (vpfe_dev->started) { | |
944 | v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is started\n"); | |
945 | return -EBUSY; | |
946 | } | |
947 | ||
948 | /* Check for valid frame format */ | |
949 | pix_fmts = vpfe_check_format(vpfe_dev, &fmt->fmt.pix); | |
c580f295 | 950 | if (!pix_fmts) |
7da8a6cb MK |
951 | return -EINVAL; |
952 | ||
953 | /* store the pixel format in the device object */ | |
954 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
955 | if (ret) | |
956 | return ret; | |
957 | ||
958 | /* First detach any IRQ if currently attached */ | |
959 | vpfe_detach_irq(vpfe_dev); | |
960 | vpfe_dev->fmt = *fmt; | |
961 | /* set image capture parameters in the ccdc */ | |
962 | ret = vpfe_config_ccdc_image_format(vpfe_dev); | |
963 | mutex_unlock(&vpfe_dev->lock); | |
964 | return ret; | |
965 | } | |
966 | ||
967 | static int vpfe_try_fmt_vid_cap(struct file *file, void *priv, | |
968 | struct v4l2_format *f) | |
969 | { | |
970 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
971 | const struct vpfe_pixel_format *pix_fmts; | |
972 | ||
973 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_try_fmt_vid_cap\n"); | |
974 | ||
975 | pix_fmts = vpfe_check_format(vpfe_dev, &f->fmt.pix); | |
c580f295 | 976 | if (!pix_fmts) |
7da8a6cb MK |
977 | return -EINVAL; |
978 | return 0; | |
979 | } | |
980 | ||
981 | /* | |
982 | * vpfe_get_subdev_input_index - Get subdev index and subdev input index for a | |
983 | * given app input index | |
984 | */ | |
985 | static int vpfe_get_subdev_input_index(struct vpfe_device *vpfe_dev, | |
986 | int *subdev_index, | |
987 | int *subdev_input_index, | |
988 | int app_input_index) | |
989 | { | |
990 | struct vpfe_config *cfg = vpfe_dev->cfg; | |
991 | struct vpfe_subdev_info *sdinfo; | |
992 | int i, j = 0; | |
993 | ||
994 | for (i = 0; i < cfg->num_subdevs; i++) { | |
995 | sdinfo = &cfg->sub_devs[i]; | |
996 | if (app_input_index < (j + sdinfo->num_inputs)) { | |
997 | *subdev_index = i; | |
998 | *subdev_input_index = app_input_index - j; | |
999 | return 0; | |
1000 | } | |
1001 | j += sdinfo->num_inputs; | |
1002 | } | |
1003 | return -EINVAL; | |
1004 | } | |
1005 | ||
1006 | /* | |
1007 | * vpfe_get_app_input - Get app input index for a given subdev input index | |
1008 | * driver stores the input index of the current sub device and translate it | |
1009 | * when application request the current input | |
1010 | */ | |
1011 | static int vpfe_get_app_input_index(struct vpfe_device *vpfe_dev, | |
1012 | int *app_input_index) | |
1013 | { | |
1014 | struct vpfe_config *cfg = vpfe_dev->cfg; | |
1015 | struct vpfe_subdev_info *sdinfo; | |
1016 | int i, j = 0; | |
1017 | ||
1018 | for (i = 0; i < cfg->num_subdevs; i++) { | |
1019 | sdinfo = &cfg->sub_devs[i]; | |
1020 | if (!strcmp(sdinfo->name, vpfe_dev->current_subdev->name)) { | |
1021 | if (vpfe_dev->current_input >= sdinfo->num_inputs) | |
1022 | return -1; | |
1023 | *app_input_index = j + vpfe_dev->current_input; | |
1024 | return 0; | |
1025 | } | |
1026 | j += sdinfo->num_inputs; | |
1027 | } | |
1028 | return -EINVAL; | |
1029 | } | |
1030 | ||
1031 | static int vpfe_enum_input(struct file *file, void *priv, | |
1032 | struct v4l2_input *inp) | |
1033 | { | |
1034 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1035 | struct vpfe_subdev_info *sdinfo; | |
1036 | int subdev, index ; | |
1037 | ||
1038 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_input\n"); | |
1039 | ||
1040 | if (vpfe_get_subdev_input_index(vpfe_dev, | |
1041 | &subdev, | |
1042 | &index, | |
1043 | inp->index) < 0) { | |
ded026e0 | 1044 | v4l2_err(&vpfe_dev->v4l2_dev, "input information not found for the subdev\n"); |
7da8a6cb MK |
1045 | return -EINVAL; |
1046 | } | |
1047 | sdinfo = &vpfe_dev->cfg->sub_devs[subdev]; | |
e91b6006 | 1048 | *inp = sdinfo->inputs[index]; |
7da8a6cb MK |
1049 | return 0; |
1050 | } | |
1051 | ||
1052 | static int vpfe_g_input(struct file *file, void *priv, unsigned int *index) | |
1053 | { | |
1054 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1055 | ||
1056 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_input\n"); | |
1057 | ||
1058 | return vpfe_get_app_input_index(vpfe_dev, index); | |
1059 | } | |
1060 | ||
1061 | ||
1062 | static int vpfe_s_input(struct file *file, void *priv, unsigned int index) | |
1063 | { | |
1064 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
6f55dbae | 1065 | struct v4l2_subdev *sd; |
7da8a6cb MK |
1066 | struct vpfe_subdev_info *sdinfo; |
1067 | int subdev_index, inp_index; | |
1068 | struct vpfe_route *route; | |
19d4695a | 1069 | u32 input, output; |
2a0de2c8 | 1070 | int ret; |
7da8a6cb MK |
1071 | |
1072 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_input\n"); | |
1073 | ||
1074 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1075 | if (ret) | |
1076 | return ret; | |
1077 | ||
1078 | /* | |
1079 | * If streaming is started return device busy | |
1080 | * error | |
1081 | */ | |
1082 | if (vpfe_dev->started) { | |
1083 | v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is on\n"); | |
1084 | ret = -EBUSY; | |
1085 | goto unlock_out; | |
1086 | } | |
9a888ba2 PST |
1087 | ret = vpfe_get_subdev_input_index(vpfe_dev, |
1088 | &subdev_index, | |
1089 | &inp_index, | |
1090 | index); | |
1091 | if (ret < 0) { | |
7da8a6cb MK |
1092 | v4l2_err(&vpfe_dev->v4l2_dev, "invalid input index\n"); |
1093 | goto unlock_out; | |
1094 | } | |
1095 | ||
1096 | sdinfo = &vpfe_dev->cfg->sub_devs[subdev_index]; | |
6f55dbae | 1097 | sd = vpfe_dev->sd[subdev_index]; |
7da8a6cb MK |
1098 | route = &sdinfo->routes[inp_index]; |
1099 | if (route && sdinfo->can_route) { | |
1100 | input = route->input; | |
1101 | output = route->output; | |
19d4695a ME |
1102 | } else { |
1103 | input = 0; | |
1104 | output = 0; | |
7da8a6cb MK |
1105 | } |
1106 | ||
6f55dbae HV |
1107 | if (sd) |
1108 | ret = v4l2_subdev_call(sd, video, s_routing, input, output, 0); | |
7da8a6cb MK |
1109 | |
1110 | if (ret) { | |
1111 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1112 | "vpfe_doioctl:error in setting input in decoder\n"); | |
1113 | ret = -EINVAL; | |
1114 | goto unlock_out; | |
1115 | } | |
1116 | vpfe_dev->current_subdev = sdinfo; | |
6f55dbae HV |
1117 | if (sd) |
1118 | vpfe_dev->v4l2_dev.ctrl_handler = sd->ctrl_handler; | |
7da8a6cb MK |
1119 | vpfe_dev->current_input = index; |
1120 | vpfe_dev->std_index = 0; | |
1121 | ||
1122 | /* set the bus/interface parameter for the sub device in ccdc */ | |
1123 | ret = ccdc_dev->hw_ops.set_hw_if_params(&sdinfo->ccdc_if_params); | |
1124 | if (ret) | |
1125 | goto unlock_out; | |
1126 | ||
1127 | /* set the default image parameters in the device */ | |
1128 | ret = vpfe_config_image_format(vpfe_dev, | |
314527ac | 1129 | vpfe_standards[vpfe_dev->std_index].std_id); |
7da8a6cb MK |
1130 | unlock_out: |
1131 | mutex_unlock(&vpfe_dev->lock); | |
1132 | return ret; | |
1133 | } | |
1134 | ||
1135 | static int vpfe_querystd(struct file *file, void *priv, v4l2_std_id *std_id) | |
1136 | { | |
1137 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1138 | struct vpfe_subdev_info *sdinfo; | |
2a0de2c8 | 1139 | int ret; |
7da8a6cb MK |
1140 | |
1141 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querystd\n"); | |
1142 | ||
1143 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1144 | sdinfo = vpfe_dev->current_subdev; | |
1145 | if (ret) | |
1146 | return ret; | |
1147 | /* Call querystd function of decoder device */ | |
1148 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1149 | video, querystd, std_id); | |
1150 | mutex_unlock(&vpfe_dev->lock); | |
1151 | return ret; | |
1152 | } | |
1153 | ||
314527ac | 1154 | static int vpfe_s_std(struct file *file, void *priv, v4l2_std_id std_id) |
7da8a6cb MK |
1155 | { |
1156 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1157 | struct vpfe_subdev_info *sdinfo; | |
2a0de2c8 | 1158 | int ret; |
7da8a6cb MK |
1159 | |
1160 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_std\n"); | |
1161 | ||
1162 | /* Call decoder driver function to set the standard */ | |
1163 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1164 | if (ret) | |
1165 | return ret; | |
1166 | ||
1167 | sdinfo = vpfe_dev->current_subdev; | |
1168 | /* If streaming is started, return device busy error */ | |
1169 | if (vpfe_dev->started) { | |
1170 | v4l2_err(&vpfe_dev->v4l2_dev, "streaming is started\n"); | |
1171 | ret = -EBUSY; | |
1172 | goto unlock_out; | |
1173 | } | |
1174 | ||
1175 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
8774bed9 | 1176 | video, s_std, std_id); |
7da8a6cb MK |
1177 | if (ret < 0) { |
1178 | v4l2_err(&vpfe_dev->v4l2_dev, "Failed to set standard\n"); | |
1179 | goto unlock_out; | |
1180 | } | |
1181 | ret = vpfe_config_image_format(vpfe_dev, std_id); | |
1182 | ||
1183 | unlock_out: | |
1184 | mutex_unlock(&vpfe_dev->lock); | |
1185 | return ret; | |
1186 | } | |
1187 | ||
1188 | static int vpfe_g_std(struct file *file, void *priv, v4l2_std_id *std_id) | |
1189 | { | |
1190 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1191 | ||
1192 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_std\n"); | |
1193 | ||
1194 | *std_id = vpfe_standards[vpfe_dev->std_index].std_id; | |
1195 | return 0; | |
1196 | } | |
1197 | /* | |
1198 | * Videobuf operations | |
1199 | */ | |
1200 | static int vpfe_videobuf_setup(struct videobuf_queue *vq, | |
1201 | unsigned int *count, | |
1202 | unsigned int *size) | |
1203 | { | |
1204 | struct vpfe_fh *fh = vq->priv_data; | |
1205 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1206 | ||
1207 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_setup\n"); | |
844cc0dc VH |
1208 | *size = vpfe_dev->fmt.fmt.pix.sizeimage; |
1209 | if (vpfe_dev->memory == V4L2_MEMORY_MMAP && | |
1210 | vpfe_dev->fmt.fmt.pix.sizeimage > config_params.device_bufsize) | |
1211 | *size = config_params.device_bufsize; | |
7da8a6cb MK |
1212 | |
1213 | if (*count < config_params.min_numbuffers) | |
1214 | *count = config_params.min_numbuffers; | |
1215 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1216 | "count=%d, size=%d\n", *count, *size); | |
1217 | return 0; | |
1218 | } | |
1219 | ||
1220 | static int vpfe_videobuf_prepare(struct videobuf_queue *vq, | |
1221 | struct videobuf_buffer *vb, | |
1222 | enum v4l2_field field) | |
1223 | { | |
1224 | struct vpfe_fh *fh = vq->priv_data; | |
1225 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
844cc0dc VH |
1226 | unsigned long addr; |
1227 | int ret; | |
7da8a6cb MK |
1228 | |
1229 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_prepare\n"); | |
1230 | ||
1231 | /* If buffer is not initialized, initialize it */ | |
1232 | if (VIDEOBUF_NEEDS_INIT == vb->state) { | |
1233 | vb->width = vpfe_dev->fmt.fmt.pix.width; | |
1234 | vb->height = vpfe_dev->fmt.fmt.pix.height; | |
1235 | vb->size = vpfe_dev->fmt.fmt.pix.sizeimage; | |
1236 | vb->field = field; | |
844cc0dc | 1237 | |
b1dc614a | 1238 | ret = videobuf_iolock(vq, vb, NULL); |
844cc0dc VH |
1239 | if (ret < 0) |
1240 | return ret; | |
1241 | ||
1242 | addr = videobuf_to_dma_contig(vb); | |
1243 | /* Make sure user addresses are aligned to 32 bytes */ | |
1244 | if (!ALIGN(addr, 32)) | |
1245 | return -EINVAL; | |
1246 | ||
1247 | vb->state = VIDEOBUF_PREPARED; | |
7da8a6cb | 1248 | } |
7da8a6cb MK |
1249 | return 0; |
1250 | } | |
1251 | ||
1252 | static void vpfe_videobuf_queue(struct videobuf_queue *vq, | |
1253 | struct videobuf_buffer *vb) | |
1254 | { | |
1255 | /* Get the file handle object and device object */ | |
1256 | struct vpfe_fh *fh = vq->priv_data; | |
1257 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1258 | unsigned long flags; | |
1259 | ||
1260 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_queue\n"); | |
1261 | ||
1262 | /* add the buffer to the DMA queue */ | |
1263 | spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags); | |
1264 | list_add_tail(&vb->queue, &vpfe_dev->dma_queue); | |
1265 | spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags); | |
1266 | ||
1267 | /* Change state of the buffer */ | |
1268 | vb->state = VIDEOBUF_QUEUED; | |
1269 | } | |
1270 | ||
1271 | static void vpfe_videobuf_release(struct videobuf_queue *vq, | |
1272 | struct videobuf_buffer *vb) | |
1273 | { | |
1274 | struct vpfe_fh *fh = vq->priv_data; | |
1275 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1276 | unsigned long flags; | |
1277 | ||
1278 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_videobuf_release\n"); | |
1279 | ||
1280 | /* | |
1281 | * We need to flush the buffer from the dma queue since | |
1282 | * they are de-allocated | |
1283 | */ | |
1284 | spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags); | |
1285 | INIT_LIST_HEAD(&vpfe_dev->dma_queue); | |
1286 | spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags); | |
1287 | videobuf_dma_contig_free(vq, vb); | |
1288 | vb->state = VIDEOBUF_NEEDS_INIT; | |
1289 | } | |
1290 | ||
1291 | static struct videobuf_queue_ops vpfe_videobuf_qops = { | |
1292 | .buf_setup = vpfe_videobuf_setup, | |
1293 | .buf_prepare = vpfe_videobuf_prepare, | |
1294 | .buf_queue = vpfe_videobuf_queue, | |
1295 | .buf_release = vpfe_videobuf_release, | |
1296 | }; | |
1297 | ||
1298 | /* | |
1299 | * vpfe_reqbufs. currently support REQBUF only once opening | |
1300 | * the device. | |
1301 | */ | |
1302 | static int vpfe_reqbufs(struct file *file, void *priv, | |
1303 | struct v4l2_requestbuffers *req_buf) | |
1304 | { | |
1305 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1306 | struct vpfe_fh *fh = file->private_data; | |
2a0de2c8 | 1307 | int ret; |
7da8a6cb MK |
1308 | |
1309 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_reqbufs\n"); | |
1310 | ||
1311 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != req_buf->type) { | |
1312 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1313 | return -EINVAL; | |
1314 | } | |
1315 | ||
7da8a6cb MK |
1316 | ret = mutex_lock_interruptible(&vpfe_dev->lock); |
1317 | if (ret) | |
1318 | return ret; | |
1319 | ||
1320 | if (vpfe_dev->io_usrs != 0) { | |
1321 | v4l2_err(&vpfe_dev->v4l2_dev, "Only one IO user allowed\n"); | |
1322 | ret = -EBUSY; | |
1323 | goto unlock_out; | |
1324 | } | |
1325 | ||
1326 | vpfe_dev->memory = req_buf->memory; | |
1327 | videobuf_queue_dma_contig_init(&vpfe_dev->buffer_queue, | |
1328 | &vpfe_videobuf_qops, | |
204e6ea9 | 1329 | vpfe_dev->pdev, |
7da8a6cb MK |
1330 | &vpfe_dev->irqlock, |
1331 | req_buf->type, | |
1332 | vpfe_dev->fmt.fmt.pix.field, | |
1333 | sizeof(struct videobuf_buffer), | |
e3cfd447 | 1334 | fh, NULL); |
7da8a6cb MK |
1335 | |
1336 | fh->io_allowed = 1; | |
1337 | vpfe_dev->io_usrs = 1; | |
1338 | INIT_LIST_HEAD(&vpfe_dev->dma_queue); | |
1339 | ret = videobuf_reqbufs(&vpfe_dev->buffer_queue, req_buf); | |
1340 | unlock_out: | |
1341 | mutex_unlock(&vpfe_dev->lock); | |
1342 | return ret; | |
1343 | } | |
1344 | ||
1345 | static int vpfe_querybuf(struct file *file, void *priv, | |
1346 | struct v4l2_buffer *buf) | |
1347 | { | |
1348 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1349 | ||
1350 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querybuf\n"); | |
1351 | ||
1352 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) { | |
1353 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1354 | return -EINVAL; | |
1355 | } | |
1356 | ||
1357 | if (vpfe_dev->memory != V4L2_MEMORY_MMAP) { | |
1358 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid memory\n"); | |
1359 | return -EINVAL; | |
1360 | } | |
1361 | /* Call videobuf_querybuf to get information */ | |
1362 | return videobuf_querybuf(&vpfe_dev->buffer_queue, buf); | |
1363 | } | |
1364 | ||
1365 | static int vpfe_qbuf(struct file *file, void *priv, | |
1366 | struct v4l2_buffer *p) | |
1367 | { | |
1368 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1369 | struct vpfe_fh *fh = file->private_data; | |
1370 | ||
1371 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_qbuf\n"); | |
1372 | ||
1373 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != p->type) { | |
1374 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1375 | return -EINVAL; | |
1376 | } | |
1377 | ||
1378 | /* | |
1379 | * If this file handle is not allowed to do IO, | |
1380 | * return error | |
1381 | */ | |
1382 | if (!fh->io_allowed) { | |
1383 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1384 | return -EACCES; | |
1385 | } | |
1386 | return videobuf_qbuf(&vpfe_dev->buffer_queue, p); | |
1387 | } | |
1388 | ||
1389 | static int vpfe_dqbuf(struct file *file, void *priv, | |
1390 | struct v4l2_buffer *buf) | |
1391 | { | |
1392 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1393 | ||
1394 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_dqbuf\n"); | |
1395 | ||
1396 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) { | |
1397 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1398 | return -EINVAL; | |
1399 | } | |
1400 | return videobuf_dqbuf(&vpfe_dev->buffer_queue, | |
1401 | buf, file->f_flags & O_NONBLOCK); | |
1402 | } | |
1403 | ||
1404 | /* | |
1405 | * vpfe_calculate_offsets : This function calculates buffers offset | |
1406 | * for top and bottom field | |
1407 | */ | |
1408 | static void vpfe_calculate_offsets(struct vpfe_device *vpfe_dev) | |
1409 | { | |
1410 | struct v4l2_rect image_win; | |
1411 | ||
1412 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_calculate_offsets\n"); | |
1413 | ||
1414 | ccdc_dev->hw_ops.get_image_window(&image_win); | |
1415 | vpfe_dev->field_off = image_win.height * image_win.width; | |
1416 | } | |
1417 | ||
1418 | /* vpfe_start_ccdc_capture: start streaming in ccdc/isif */ | |
1419 | static void vpfe_start_ccdc_capture(struct vpfe_device *vpfe_dev) | |
1420 | { | |
1421 | ccdc_dev->hw_ops.enable(1); | |
1422 | if (ccdc_dev->hw_ops.enable_out_to_sdram) | |
1423 | ccdc_dev->hw_ops.enable_out_to_sdram(1); | |
1424 | vpfe_dev->started = 1; | |
1425 | } | |
1426 | ||
1427 | /* | |
1428 | * vpfe_streamon. Assume the DMA queue is not empty. | |
1429 | * application is expected to call QBUF before calling | |
1430 | * this ioctl. If not, driver returns error | |
1431 | */ | |
1432 | static int vpfe_streamon(struct file *file, void *priv, | |
1433 | enum v4l2_buf_type buf_type) | |
1434 | { | |
1435 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1436 | struct vpfe_fh *fh = file->private_data; | |
1437 | struct vpfe_subdev_info *sdinfo; | |
1438 | unsigned long addr; | |
2a0de2c8 | 1439 | int ret; |
7da8a6cb MK |
1440 | |
1441 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamon\n"); | |
1442 | ||
1443 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) { | |
1444 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1445 | return -EINVAL; | |
1446 | } | |
1447 | ||
1448 | /* If file handle is not allowed IO, return error */ | |
1449 | if (!fh->io_allowed) { | |
1450 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1451 | return -EACCES; | |
1452 | } | |
1453 | ||
1454 | sdinfo = vpfe_dev->current_subdev; | |
1455 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1456 | video, s_stream, 1); | |
1457 | ||
1458 | if (ret && (ret != -ENOIOCTLCMD)) { | |
1459 | v4l2_err(&vpfe_dev->v4l2_dev, "stream on failed in subdev\n"); | |
1460 | return -EINVAL; | |
1461 | } | |
1462 | ||
1463 | /* If buffer queue is empty, return error */ | |
1464 | if (list_empty(&vpfe_dev->buffer_queue.stream)) { | |
1465 | v4l2_err(&vpfe_dev->v4l2_dev, "buffer queue is empty\n"); | |
1466 | return -EIO; | |
1467 | } | |
1468 | ||
1469 | /* Call videobuf_streamon to start streaming * in videobuf */ | |
1470 | ret = videobuf_streamon(&vpfe_dev->buffer_queue); | |
1471 | if (ret) | |
1472 | return ret; | |
1473 | ||
1474 | ||
1475 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1476 | if (ret) | |
1477 | goto streamoff; | |
1478 | /* Get the next frame from the buffer queue */ | |
1479 | vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next, | |
1480 | struct videobuf_buffer, queue); | |
1481 | vpfe_dev->cur_frm = vpfe_dev->next_frm; | |
1482 | /* Remove buffer from the buffer queue */ | |
1483 | list_del(&vpfe_dev->cur_frm->queue); | |
1484 | /* Mark state of the current frame to active */ | |
1485 | vpfe_dev->cur_frm->state = VIDEOBUF_ACTIVE; | |
1486 | /* Initialize field_id and started member */ | |
1487 | vpfe_dev->field_id = 0; | |
1488 | addr = videobuf_to_dma_contig(vpfe_dev->cur_frm); | |
1489 | ||
1490 | /* Calculate field offset */ | |
1491 | vpfe_calculate_offsets(vpfe_dev); | |
1492 | ||
1493 | if (vpfe_attach_irq(vpfe_dev) < 0) { | |
1494 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1495 | "Error in attaching interrupt handle\n"); | |
1496 | ret = -EFAULT; | |
1497 | goto unlock_out; | |
1498 | } | |
1499 | if (ccdc_dev->hw_ops.configure() < 0) { | |
1500 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1501 | "Error in configuring ccdc\n"); | |
1502 | ret = -EINVAL; | |
1503 | goto unlock_out; | |
1504 | } | |
1505 | ccdc_dev->hw_ops.setfbaddr((unsigned long)(addr)); | |
1506 | vpfe_start_ccdc_capture(vpfe_dev); | |
1507 | mutex_unlock(&vpfe_dev->lock); | |
1508 | return ret; | |
1509 | unlock_out: | |
1510 | mutex_unlock(&vpfe_dev->lock); | |
1511 | streamoff: | |
1512 | ret = videobuf_streamoff(&vpfe_dev->buffer_queue); | |
1513 | return ret; | |
1514 | } | |
1515 | ||
1516 | static int vpfe_streamoff(struct file *file, void *priv, | |
1517 | enum v4l2_buf_type buf_type) | |
1518 | { | |
1519 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1520 | struct vpfe_fh *fh = file->private_data; | |
1521 | struct vpfe_subdev_info *sdinfo; | |
2a0de2c8 | 1522 | int ret; |
7da8a6cb MK |
1523 | |
1524 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamoff\n"); | |
1525 | ||
1526 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) { | |
1527 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1528 | return -EINVAL; | |
1529 | } | |
1530 | ||
1531 | /* If io is allowed for this file handle, return error */ | |
1532 | if (!fh->io_allowed) { | |
1533 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1534 | return -EACCES; | |
1535 | } | |
1536 | ||
1537 | /* If streaming is not started, return error */ | |
1538 | if (!vpfe_dev->started) { | |
1539 | v4l2_err(&vpfe_dev->v4l2_dev, "device started\n"); | |
1540 | return -EINVAL; | |
1541 | } | |
1542 | ||
1543 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1544 | if (ret) | |
1545 | return ret; | |
1546 | ||
1547 | vpfe_stop_ccdc_capture(vpfe_dev); | |
1548 | vpfe_detach_irq(vpfe_dev); | |
1549 | ||
1550 | sdinfo = vpfe_dev->current_subdev; | |
1551 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1552 | video, s_stream, 0); | |
1553 | ||
1554 | if (ret && (ret != -ENOIOCTLCMD)) | |
1555 | v4l2_err(&vpfe_dev->v4l2_dev, "stream off failed in subdev\n"); | |
1556 | ret = videobuf_streamoff(&vpfe_dev->buffer_queue); | |
1557 | mutex_unlock(&vpfe_dev->lock); | |
1558 | return ret; | |
1559 | } | |
1560 | ||
1561 | static int vpfe_cropcap(struct file *file, void *priv, | |
1562 | struct v4l2_cropcap *crop) | |
1563 | { | |
1564 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1565 | ||
1566 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_cropcap\n"); | |
1567 | ||
ffc2a6bb | 1568 | if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
7da8a6cb | 1569 | return -EINVAL; |
ffc2a6bb HV |
1570 | /* If std_index is invalid, then just return (== 1:1 aspect) */ |
1571 | if (vpfe_dev->std_index >= ARRAY_SIZE(vpfe_standards)) | |
1572 | return 0; | |
7da8a6cb | 1573 | |
7da8a6cb MK |
1574 | crop->pixelaspect = vpfe_standards[vpfe_dev->std_index].pixelaspect; |
1575 | return 0; | |
1576 | } | |
1577 | ||
ffc2a6bb HV |
1578 | static int vpfe_g_selection(struct file *file, void *priv, |
1579 | struct v4l2_selection *sel) | |
7da8a6cb MK |
1580 | { |
1581 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1582 | ||
ffc2a6bb | 1583 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_selection\n"); |
7da8a6cb | 1584 | |
ffc2a6bb HV |
1585 | if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
1586 | return -EINVAL; | |
1587 | ||
1588 | switch (sel->target) { | |
1589 | case V4L2_SEL_TGT_CROP: | |
1590 | sel->r = vpfe_dev->crop; | |
1591 | break; | |
1592 | case V4L2_SEL_TGT_CROP_DEFAULT: | |
1593 | case V4L2_SEL_TGT_CROP_BOUNDS: | |
1594 | sel->r.width = vpfe_standards[vpfe_dev->std_index].width; | |
1595 | sel->r.height = vpfe_standards[vpfe_dev->std_index].height; | |
1596 | break; | |
1597 | default: | |
1598 | return -EINVAL; | |
1599 | } | |
7da8a6cb MK |
1600 | return 0; |
1601 | } | |
1602 | ||
ffc2a6bb HV |
1603 | static int vpfe_s_selection(struct file *file, void *priv, |
1604 | struct v4l2_selection *sel) | |
7da8a6cb MK |
1605 | { |
1606 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
ffc2a6bb | 1607 | struct v4l2_rect rect = sel->r; |
2a0de2c8 | 1608 | int ret; |
7da8a6cb | 1609 | |
ffc2a6bb HV |
1610 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_selection\n"); |
1611 | ||
1612 | if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1613 | sel->target != V4L2_SEL_TGT_CROP) | |
1614 | return -EINVAL; | |
7da8a6cb MK |
1615 | |
1616 | if (vpfe_dev->started) { | |
1617 | /* make sure streaming is not started */ | |
1618 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1619 | "Cannot change crop when streaming is ON\n"); | |
1620 | return -EBUSY; | |
1621 | } | |
1622 | ||
1623 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1624 | if (ret) | |
1625 | return ret; | |
1626 | ||
8b6faacd | 1627 | if (rect.top < 0 || rect.left < 0) { |
7da8a6cb MK |
1628 | v4l2_err(&vpfe_dev->v4l2_dev, |
1629 | "doesn't support negative values for top & left\n"); | |
1630 | ret = -EINVAL; | |
1631 | goto unlock_out; | |
1632 | } | |
1633 | ||
25985edc | 1634 | /* adjust the width to 16 pixel boundary */ |
8b6faacd | 1635 | rect.width = ((rect.width + 15) & ~0xf); |
7da8a6cb MK |
1636 | |
1637 | /* make sure parameters are valid */ | |
8b6faacd | 1638 | if ((rect.left + rect.width > |
7da8a6cb | 1639 | vpfe_dev->std_info.active_pixels) || |
8b6faacd | 1640 | (rect.top + rect.height > |
7da8a6cb | 1641 | vpfe_dev->std_info.active_lines)) { |
ffc2a6bb | 1642 | v4l2_err(&vpfe_dev->v4l2_dev, "Error in S_SELECTION params\n"); |
7da8a6cb MK |
1643 | ret = -EINVAL; |
1644 | goto unlock_out; | |
1645 | } | |
8b6faacd LP |
1646 | ccdc_dev->hw_ops.set_image_window(&rect); |
1647 | vpfe_dev->fmt.fmt.pix.width = rect.width; | |
1648 | vpfe_dev->fmt.fmt.pix.height = rect.height; | |
7da8a6cb MK |
1649 | vpfe_dev->fmt.fmt.pix.bytesperline = |
1650 | ccdc_dev->hw_ops.get_line_length(); | |
1651 | vpfe_dev->fmt.fmt.pix.sizeimage = | |
1652 | vpfe_dev->fmt.fmt.pix.bytesperline * | |
1653 | vpfe_dev->fmt.fmt.pix.height; | |
8b6faacd | 1654 | vpfe_dev->crop = rect; |
ffc2a6bb | 1655 | sel->r = rect; |
7da8a6cb MK |
1656 | unlock_out: |
1657 | mutex_unlock(&vpfe_dev->lock); | |
1658 | return ret; | |
1659 | } | |
1660 | ||
7da8a6cb MK |
1661 | /* vpfe capture ioctl operations */ |
1662 | static const struct v4l2_ioctl_ops vpfe_ioctl_ops = { | |
1663 | .vidioc_querycap = vpfe_querycap, | |
1664 | .vidioc_g_fmt_vid_cap = vpfe_g_fmt_vid_cap, | |
1665 | .vidioc_enum_fmt_vid_cap = vpfe_enum_fmt_vid_cap, | |
1666 | .vidioc_s_fmt_vid_cap = vpfe_s_fmt_vid_cap, | |
1667 | .vidioc_try_fmt_vid_cap = vpfe_try_fmt_vid_cap, | |
1668 | .vidioc_enum_input = vpfe_enum_input, | |
1669 | .vidioc_g_input = vpfe_g_input, | |
1670 | .vidioc_s_input = vpfe_s_input, | |
1671 | .vidioc_querystd = vpfe_querystd, | |
1672 | .vidioc_s_std = vpfe_s_std, | |
1673 | .vidioc_g_std = vpfe_g_std, | |
1674 | .vidioc_reqbufs = vpfe_reqbufs, | |
1675 | .vidioc_querybuf = vpfe_querybuf, | |
1676 | .vidioc_qbuf = vpfe_qbuf, | |
1677 | .vidioc_dqbuf = vpfe_dqbuf, | |
1678 | .vidioc_streamon = vpfe_streamon, | |
1679 | .vidioc_streamoff = vpfe_streamoff, | |
1680 | .vidioc_cropcap = vpfe_cropcap, | |
ffc2a6bb HV |
1681 | .vidioc_g_selection = vpfe_g_selection, |
1682 | .vidioc_s_selection = vpfe_s_selection, | |
7da8a6cb MK |
1683 | }; |
1684 | ||
1685 | static struct vpfe_device *vpfe_initialize(void) | |
1686 | { | |
1687 | struct vpfe_device *vpfe_dev; | |
1688 | ||
1689 | /* Default number of buffers should be 3 */ | |
1690 | if ((numbuffers > 0) && | |
1691 | (numbuffers < config_params.min_numbuffers)) | |
1692 | numbuffers = config_params.min_numbuffers; | |
1693 | ||
1694 | /* | |
1695 | * Set buffer size to min buffers size if invalid buffer size is | |
1696 | * given | |
1697 | */ | |
1698 | if (bufsize < config_params.min_bufsize) | |
1699 | bufsize = config_params.min_bufsize; | |
1700 | ||
1701 | config_params.numbuffers = numbuffers; | |
1702 | ||
1703 | if (numbuffers) | |
1704 | config_params.device_bufsize = bufsize; | |
1705 | ||
1706 | /* Allocate memory for device objects */ | |
1707 | vpfe_dev = kzalloc(sizeof(*vpfe_dev), GFP_KERNEL); | |
1708 | ||
1709 | return vpfe_dev; | |
1710 | } | |
1711 | ||
7da8a6cb MK |
1712 | /* |
1713 | * vpfe_probe : This function creates device entries by register | |
1714 | * itself to the V4L2 driver and initializes fields of each | |
1715 | * device objects | |
1716 | */ | |
4c62e976 | 1717 | static int vpfe_probe(struct platform_device *pdev) |
7da8a6cb MK |
1718 | { |
1719 | struct vpfe_subdev_info *sdinfo; | |
1720 | struct vpfe_config *vpfe_cfg; | |
1721 | struct resource *res1; | |
1722 | struct vpfe_device *vpfe_dev; | |
1723 | struct i2c_adapter *i2c_adap; | |
1724 | struct video_device *vfd; | |
efb74461 | 1725 | int ret, i, j; |
7da8a6cb MK |
1726 | int num_subdevs = 0; |
1727 | ||
1728 | /* Get the pointer to the device object */ | |
1729 | vpfe_dev = vpfe_initialize(); | |
1730 | ||
1731 | if (!vpfe_dev) { | |
1732 | v4l2_err(pdev->dev.driver, | |
1733 | "Failed to allocate memory for vpfe_dev\n"); | |
efb74461 | 1734 | return -ENOMEM; |
7da8a6cb MK |
1735 | } |
1736 | ||
1737 | vpfe_dev->pdev = &pdev->dev; | |
1738 | ||
c580f295 | 1739 | if (!pdev->dev.platform_data) { |
7da8a6cb | 1740 | v4l2_err(pdev->dev.driver, "Unable to get vpfe config\n"); |
51444ea3 | 1741 | ret = -ENODEV; |
7da8a6cb MK |
1742 | goto probe_free_dev_mem; |
1743 | } | |
1744 | ||
1745 | vpfe_cfg = pdev->dev.platform_data; | |
1746 | vpfe_dev->cfg = vpfe_cfg; | |
c580f295 | 1747 | if (!vpfe_cfg->ccdc || !vpfe_cfg->card_name || !vpfe_cfg->sub_devs) { |
7da8a6cb MK |
1748 | v4l2_err(pdev->dev.driver, "null ptr in vpfe_cfg\n"); |
1749 | ret = -ENOENT; | |
1750 | goto probe_free_dev_mem; | |
1751 | } | |
1752 | ||
7da8a6cb | 1753 | /* Allocate memory for ccdc configuration */ |
e4c0cd0a | 1754 | ccdc_cfg = kmalloc(sizeof(*ccdc_cfg), GFP_KERNEL); |
1827bdc7 HV |
1755 | if (!ccdc_cfg) { |
1756 | ret = -ENOMEM; | |
39e219d9 | 1757 | goto probe_free_dev_mem; |
1827bdc7 | 1758 | } |
7da8a6cb | 1759 | |
2b080c5d DC |
1760 | mutex_lock(&ccdc_lock); |
1761 | ||
7da8a6cb MK |
1762 | strncpy(ccdc_cfg->name, vpfe_cfg->ccdc, 32); |
1763 | /* Get VINT0 irq resource */ | |
1764 | res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 0); | |
1765 | if (!res1) { | |
1766 | v4l2_err(pdev->dev.driver, | |
1767 | "Unable to get interrupt for VINT0\n"); | |
51444ea3 MK |
1768 | ret = -ENODEV; |
1769 | goto probe_free_ccdc_cfg_mem; | |
7da8a6cb MK |
1770 | } |
1771 | vpfe_dev->ccdc_irq0 = res1->start; | |
1772 | ||
1773 | /* Get VINT1 irq resource */ | |
51444ea3 | 1774 | res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 1); |
7da8a6cb MK |
1775 | if (!res1) { |
1776 | v4l2_err(pdev->dev.driver, | |
1777 | "Unable to get interrupt for VINT1\n"); | |
51444ea3 MK |
1778 | ret = -ENODEV; |
1779 | goto probe_free_ccdc_cfg_mem; | |
7da8a6cb MK |
1780 | } |
1781 | vpfe_dev->ccdc_irq1 = res1->start; | |
1782 | ||
d8c279a0 | 1783 | ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, 0, |
7da8a6cb MK |
1784 | "vpfe_capture0", vpfe_dev); |
1785 | ||
1786 | if (0 != ret) { | |
1787 | v4l2_err(pdev->dev.driver, "Unable to request interrupt\n"); | |
51444ea3 | 1788 | goto probe_free_ccdc_cfg_mem; |
7da8a6cb MK |
1789 | } |
1790 | ||
03c278f0 | 1791 | vfd = &vpfe_dev->video_dev; |
7da8a6cb | 1792 | /* Initialize field of video device */ |
03c278f0 | 1793 | vfd->release = video_device_release_empty; |
7da8a6cb MK |
1794 | vfd->fops = &vpfe_fops; |
1795 | vfd->ioctl_ops = &vpfe_ioctl_ops; | |
7da8a6cb | 1796 | vfd->tvnorms = 0; |
7da8a6cb MK |
1797 | vfd->v4l2_dev = &vpfe_dev->v4l2_dev; |
1798 | snprintf(vfd->name, sizeof(vfd->name), | |
1799 | "%s_V%d.%d.%d", | |
1800 | CAPTURE_DRV_NAME, | |
1801 | (VPFE_CAPTURE_VERSION_CODE >> 16) & 0xff, | |
1802 | (VPFE_CAPTURE_VERSION_CODE >> 8) & 0xff, | |
1803 | (VPFE_CAPTURE_VERSION_CODE) & 0xff); | |
7da8a6cb MK |
1804 | |
1805 | ret = v4l2_device_register(&pdev->dev, &vpfe_dev->v4l2_dev); | |
1806 | if (ret) { | |
1807 | v4l2_err(pdev->dev.driver, | |
1808 | "Unable to register v4l2 device.\n"); | |
03c278f0 | 1809 | goto probe_out_release_irq; |
7da8a6cb MK |
1810 | } |
1811 | v4l2_info(&vpfe_dev->v4l2_dev, "v4l2 device registered\n"); | |
1812 | spin_lock_init(&vpfe_dev->irqlock); | |
1813 | spin_lock_init(&vpfe_dev->dma_queue_lock); | |
1814 | mutex_init(&vpfe_dev->lock); | |
1815 | ||
1816 | /* Initialize field of the device objects */ | |
1817 | vpfe_dev->numbuffers = config_params.numbuffers; | |
1818 | ||
7da8a6cb MK |
1819 | /* register video device */ |
1820 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1821 | "trying to register vpfe device.\n"); | |
1822 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
212bdba3 | 1823 | "video_dev=%p\n", &vpfe_dev->video_dev); |
7da8a6cb | 1824 | vpfe_dev->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
03c278f0 | 1825 | ret = video_register_device(&vpfe_dev->video_dev, |
7da8a6cb MK |
1826 | VFL_TYPE_GRABBER, -1); |
1827 | ||
1828 | if (ret) { | |
1829 | v4l2_err(pdev->dev.driver, | |
1830 | "Unable to register video device.\n"); | |
1831 | goto probe_out_v4l2_unregister; | |
1832 | } | |
1833 | ||
1834 | v4l2_info(&vpfe_dev->v4l2_dev, "video device registered\n"); | |
1835 | /* set the driver data in platform device */ | |
1836 | platform_set_drvdata(pdev, vpfe_dev); | |
1837 | /* set driver private data */ | |
03c278f0 | 1838 | video_set_drvdata(&vpfe_dev->video_dev, vpfe_dev); |
14cbaafe | 1839 | i2c_adap = i2c_get_adapter(vpfe_cfg->i2c_adapter_id); |
7da8a6cb | 1840 | num_subdevs = vpfe_cfg->num_subdevs; |
ed011a23 ME |
1841 | vpfe_dev->sd = kmalloc_array(num_subdevs, |
1842 | sizeof(*vpfe_dev->sd), | |
1843 | GFP_KERNEL); | |
c580f295 | 1844 | if (!vpfe_dev->sd) { |
7da8a6cb MK |
1845 | ret = -ENOMEM; |
1846 | goto probe_out_video_unregister; | |
1847 | } | |
1848 | ||
1849 | for (i = 0; i < num_subdevs; i++) { | |
1850 | struct v4l2_input *inps; | |
1851 | ||
1852 | sdinfo = &vpfe_cfg->sub_devs[i]; | |
1853 | ||
1854 | /* Load up the subdevice */ | |
1855 | vpfe_dev->sd[i] = | |
1856 | v4l2_i2c_new_subdev_board(&vpfe_dev->v4l2_dev, | |
1857 | i2c_adap, | |
7da8a6cb MK |
1858 | &sdinfo->board_info, |
1859 | NULL); | |
1860 | if (vpfe_dev->sd[i]) { | |
1861 | v4l2_info(&vpfe_dev->v4l2_dev, | |
1862 | "v4l2 sub device %s registered\n", | |
1863 | sdinfo->name); | |
1864 | vpfe_dev->sd[i]->grp_id = sdinfo->grp_id; | |
1865 | /* update tvnorms from the sub devices */ | |
1866 | for (j = 0; j < sdinfo->num_inputs; j++) { | |
1867 | inps = &sdinfo->inputs[j]; | |
1868 | vfd->tvnorms |= inps->std; | |
1869 | } | |
1870 | } else { | |
1871 | v4l2_info(&vpfe_dev->v4l2_dev, | |
1872 | "v4l2 sub device %s register fails\n", | |
1873 | sdinfo->name); | |
d3d83ee2 | 1874 | ret = -ENXIO; |
7da8a6cb MK |
1875 | goto probe_sd_out; |
1876 | } | |
1877 | } | |
1878 | ||
1879 | /* set first sub device as current one */ | |
1880 | vpfe_dev->current_subdev = &vpfe_cfg->sub_devs[0]; | |
6f55dbae | 1881 | vpfe_dev->v4l2_dev.ctrl_handler = vpfe_dev->sd[0]->ctrl_handler; |
7da8a6cb MK |
1882 | |
1883 | /* We have at least one sub device to work with */ | |
1884 | mutex_unlock(&ccdc_lock); | |
1885 | return 0; | |
1886 | ||
1887 | probe_sd_out: | |
1888 | kfree(vpfe_dev->sd); | |
1889 | probe_out_video_unregister: | |
03c278f0 | 1890 | video_unregister_device(&vpfe_dev->video_dev); |
7da8a6cb MK |
1891 | probe_out_v4l2_unregister: |
1892 | v4l2_device_unregister(&vpfe_dev->v4l2_dev); | |
7da8a6cb MK |
1893 | probe_out_release_irq: |
1894 | free_irq(vpfe_dev->ccdc_irq0, vpfe_dev); | |
51444ea3 | 1895 | probe_free_ccdc_cfg_mem: |
7da8a6cb | 1896 | kfree(ccdc_cfg); |
ab51bec1 | 1897 | mutex_unlock(&ccdc_lock); |
7da8a6cb MK |
1898 | probe_free_dev_mem: |
1899 | kfree(vpfe_dev); | |
1900 | return ret; | |
1901 | } | |
1902 | ||
1903 | /* | |
1904 | * vpfe_remove : It un-register device from V4L2 driver | |
1905 | */ | |
4c62e976 | 1906 | static int vpfe_remove(struct platform_device *pdev) |
7da8a6cb MK |
1907 | { |
1908 | struct vpfe_device *vpfe_dev = platform_get_drvdata(pdev); | |
7da8a6cb MK |
1909 | |
1910 | v4l2_info(pdev->dev.driver, "vpfe_remove\n"); | |
1911 | ||
1912 | free_irq(vpfe_dev->ccdc_irq0, vpfe_dev); | |
1913 | kfree(vpfe_dev->sd); | |
1914 | v4l2_device_unregister(&vpfe_dev->v4l2_dev); | |
03c278f0 | 1915 | video_unregister_device(&vpfe_dev->video_dev); |
7da8a6cb MK |
1916 | kfree(vpfe_dev); |
1917 | kfree(ccdc_cfg); | |
1918 | return 0; | |
1919 | } | |
1920 | ||
aa2dc903 | 1921 | static int vpfe_suspend(struct device *dev) |
7da8a6cb | 1922 | { |
aa2dc903 | 1923 | return 0; |
7da8a6cb MK |
1924 | } |
1925 | ||
aa2dc903 | 1926 | static int vpfe_resume(struct device *dev) |
7da8a6cb | 1927 | { |
aa2dc903 | 1928 | return 0; |
7da8a6cb MK |
1929 | } |
1930 | ||
47145210 | 1931 | static const struct dev_pm_ops vpfe_dev_pm_ops = { |
7da8a6cb MK |
1932 | .suspend = vpfe_suspend, |
1933 | .resume = vpfe_resume, | |
1934 | }; | |
1935 | ||
a1b3a6ce | 1936 | static struct platform_driver vpfe_driver = { |
7da8a6cb MK |
1937 | .driver = { |
1938 | .name = CAPTURE_DRV_NAME, | |
7da8a6cb MK |
1939 | .pm = &vpfe_dev_pm_ops, |
1940 | }, | |
1941 | .probe = vpfe_probe, | |
4c62e976 | 1942 | .remove = vpfe_remove, |
7da8a6cb MK |
1943 | }; |
1944 | ||
1d6629b1 | 1945 | module_platform_driver(vpfe_driver); |