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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); | |
7da8a6cb MK |
226 | BUG_ON(!dev->hw_ops.set_image_window); |
227 | BUG_ON(!dev->hw_ops.get_image_window); | |
228 | BUG_ON(!dev->hw_ops.get_line_length); | |
7da8a6cb MK |
229 | BUG_ON(!dev->hw_ops.getfid); |
230 | ||
231 | mutex_lock(&ccdc_lock); | |
232 | if (NULL == ccdc_cfg) { | |
233 | /* | |
234 | * TODO. Will this ever happen? if so, we need to fix it. | |
235 | * Proabably we need to add the request to a linked list and | |
236 | * walk through it during vpfe probe | |
237 | */ | |
238 | printk(KERN_ERR "vpfe capture not initialized\n"); | |
51444ea3 | 239 | ret = -EFAULT; |
7da8a6cb MK |
240 | goto unlock; |
241 | } | |
242 | ||
243 | if (strcmp(dev->name, ccdc_cfg->name)) { | |
244 | /* ignore this ccdc */ | |
51444ea3 | 245 | ret = -EINVAL; |
7da8a6cb MK |
246 | goto unlock; |
247 | } | |
248 | ||
249 | if (ccdc_dev) { | |
250 | printk(KERN_ERR "ccdc already registered\n"); | |
51444ea3 | 251 | ret = -EINVAL; |
7da8a6cb MK |
252 | goto unlock; |
253 | } | |
254 | ||
255 | ccdc_dev = dev; | |
7da8a6cb MK |
256 | unlock: |
257 | mutex_unlock(&ccdc_lock); | |
258 | return ret; | |
259 | } | |
260 | EXPORT_SYMBOL(vpfe_register_ccdc_device); | |
261 | ||
262 | /* | |
263 | * vpfe_unregister_ccdc_device. CCDC module calls this to | |
264 | * unregister with vpfe capture | |
265 | */ | |
266 | void vpfe_unregister_ccdc_device(struct ccdc_hw_device *dev) | |
267 | { | |
268 | if (NULL == dev) { | |
269 | printk(KERN_ERR "invalid ccdc device ptr\n"); | |
270 | return; | |
271 | } | |
272 | ||
273 | printk(KERN_NOTICE "vpfe_unregister_ccdc_device, dev->name = %s\n", | |
274 | dev->name); | |
275 | ||
276 | if (strcmp(dev->name, ccdc_cfg->name)) { | |
277 | /* ignore this ccdc */ | |
278 | return; | |
279 | } | |
280 | ||
281 | mutex_lock(&ccdc_lock); | |
282 | ccdc_dev = NULL; | |
283 | mutex_unlock(&ccdc_lock); | |
284 | return; | |
285 | } | |
286 | EXPORT_SYMBOL(vpfe_unregister_ccdc_device); | |
287 | ||
288 | /* | |
289 | * vpfe_get_ccdc_image_format - Get image parameters based on CCDC settings | |
290 | */ | |
291 | static int vpfe_get_ccdc_image_format(struct vpfe_device *vpfe_dev, | |
292 | struct v4l2_format *f) | |
293 | { | |
294 | struct v4l2_rect image_win; | |
295 | enum ccdc_buftype buf_type; | |
296 | enum ccdc_frmfmt frm_fmt; | |
297 | ||
298 | memset(f, 0, sizeof(*f)); | |
299 | f->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
300 | ccdc_dev->hw_ops.get_image_window(&image_win); | |
301 | f->fmt.pix.width = image_win.width; | |
302 | f->fmt.pix.height = image_win.height; | |
303 | f->fmt.pix.bytesperline = ccdc_dev->hw_ops.get_line_length(); | |
304 | f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * | |
305 | f->fmt.pix.height; | |
306 | buf_type = ccdc_dev->hw_ops.get_buftype(); | |
307 | f->fmt.pix.pixelformat = ccdc_dev->hw_ops.get_pixel_format(); | |
308 | frm_fmt = ccdc_dev->hw_ops.get_frame_format(); | |
309 | if (frm_fmt == CCDC_FRMFMT_PROGRESSIVE) | |
310 | f->fmt.pix.field = V4L2_FIELD_NONE; | |
311 | else if (frm_fmt == CCDC_FRMFMT_INTERLACED) { | |
312 | if (buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED) | |
313 | f->fmt.pix.field = V4L2_FIELD_INTERLACED; | |
314 | else if (buf_type == CCDC_BUFTYPE_FLD_SEPARATED) | |
315 | f->fmt.pix.field = V4L2_FIELD_SEQ_TB; | |
316 | else { | |
317 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf_type\n"); | |
318 | return -EINVAL; | |
319 | } | |
320 | } else { | |
321 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid frm_fmt\n"); | |
322 | return -EINVAL; | |
323 | } | |
324 | return 0; | |
325 | } | |
326 | ||
327 | /* | |
328 | * vpfe_config_ccdc_image_format() | |
329 | * For a pix format, configure ccdc to setup the capture | |
330 | */ | |
331 | static int vpfe_config_ccdc_image_format(struct vpfe_device *vpfe_dev) | |
332 | { | |
333 | enum ccdc_frmfmt frm_fmt = CCDC_FRMFMT_INTERLACED; | |
334 | int ret = 0; | |
335 | ||
336 | if (ccdc_dev->hw_ops.set_pixel_format( | |
337 | vpfe_dev->fmt.fmt.pix.pixelformat) < 0) { | |
338 | v4l2_err(&vpfe_dev->v4l2_dev, | |
339 | "couldn't set pix format in ccdc\n"); | |
340 | return -EINVAL; | |
341 | } | |
342 | /* configure the image window */ | |
343 | ccdc_dev->hw_ops.set_image_window(&vpfe_dev->crop); | |
344 | ||
345 | switch (vpfe_dev->fmt.fmt.pix.field) { | |
346 | case V4L2_FIELD_INTERLACED: | |
347 | /* do nothing, since it is default */ | |
348 | ret = ccdc_dev->hw_ops.set_buftype( | |
349 | CCDC_BUFTYPE_FLD_INTERLEAVED); | |
350 | break; | |
351 | case V4L2_FIELD_NONE: | |
352 | frm_fmt = CCDC_FRMFMT_PROGRESSIVE; | |
353 | /* buffer type only applicable for interlaced scan */ | |
354 | break; | |
355 | case V4L2_FIELD_SEQ_TB: | |
356 | ret = ccdc_dev->hw_ops.set_buftype( | |
357 | CCDC_BUFTYPE_FLD_SEPARATED); | |
358 | break; | |
359 | default: | |
360 | return -EINVAL; | |
361 | } | |
362 | ||
363 | /* set the frame format */ | |
364 | if (!ret) | |
365 | ret = ccdc_dev->hw_ops.set_frame_format(frm_fmt); | |
366 | return ret; | |
367 | } | |
368 | /* | |
369 | * vpfe_config_image_format() | |
370 | * For a given standard, this functions sets up the default | |
371 | * pix format & crop values in the vpfe device and ccdc. It first | |
372 | * starts with defaults based values from the standard table. | |
d3ca7759 | 373 | * It then checks if sub device support g_mbus_fmt and then override the |
7da8a6cb MK |
374 | * values based on that.Sets crop values to match with scan resolution |
375 | * starting at 0,0. It calls vpfe_config_ccdc_image_format() set the | |
376 | * values in ccdc | |
377 | */ | |
378 | static int vpfe_config_image_format(struct vpfe_device *vpfe_dev, | |
379 | const v4l2_std_id *std_id) | |
380 | { | |
381 | struct vpfe_subdev_info *sdinfo = vpfe_dev->current_subdev; | |
d3ca7759 HV |
382 | struct v4l2_mbus_framefmt mbus_fmt; |
383 | struct v4l2_pix_format *pix = &vpfe_dev->fmt.fmt.pix; | |
7da8a6cb MK |
384 | int i, ret = 0; |
385 | ||
386 | for (i = 0; i < ARRAY_SIZE(vpfe_standards); i++) { | |
387 | if (vpfe_standards[i].std_id & *std_id) { | |
388 | vpfe_dev->std_info.active_pixels = | |
389 | vpfe_standards[i].width; | |
390 | vpfe_dev->std_info.active_lines = | |
391 | vpfe_standards[i].height; | |
392 | vpfe_dev->std_info.frame_format = | |
393 | vpfe_standards[i].frame_format; | |
394 | vpfe_dev->std_index = i; | |
395 | break; | |
396 | } | |
397 | } | |
398 | ||
399 | if (i == ARRAY_SIZE(vpfe_standards)) { | |
400 | v4l2_err(&vpfe_dev->v4l2_dev, "standard not supported\n"); | |
401 | return -EINVAL; | |
402 | } | |
403 | ||
404 | vpfe_dev->crop.top = 0; | |
405 | vpfe_dev->crop.left = 0; | |
406 | vpfe_dev->crop.width = vpfe_dev->std_info.active_pixels; | |
407 | vpfe_dev->crop.height = vpfe_dev->std_info.active_lines; | |
d3ca7759 HV |
408 | pix->width = vpfe_dev->crop.width; |
409 | pix->height = vpfe_dev->crop.height; | |
7da8a6cb MK |
410 | |
411 | /* first field and frame format based on standard frame format */ | |
412 | if (vpfe_dev->std_info.frame_format) { | |
d3ca7759 | 413 | pix->field = V4L2_FIELD_INTERLACED; |
7da8a6cb | 414 | /* assume V4L2_PIX_FMT_UYVY as default */ |
d3ca7759 HV |
415 | pix->pixelformat = V4L2_PIX_FMT_UYVY; |
416 | v4l2_fill_mbus_format(&mbus_fmt, pix, | |
417 | V4L2_MBUS_FMT_YUYV10_2X10); | |
7da8a6cb | 418 | } else { |
d3ca7759 | 419 | pix->field = V4L2_FIELD_NONE; |
7da8a6cb | 420 | /* assume V4L2_PIX_FMT_SBGGR8 */ |
d3ca7759 HV |
421 | pix->pixelformat = V4L2_PIX_FMT_SBGGR8; |
422 | v4l2_fill_mbus_format(&mbus_fmt, pix, | |
423 | V4L2_MBUS_FMT_SBGGR8_1X8); | |
7da8a6cb MK |
424 | } |
425 | ||
d3ca7759 | 426 | /* if sub device supports g_mbus_fmt, override the defaults */ |
7da8a6cb | 427 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, |
d3ca7759 | 428 | sdinfo->grp_id, video, g_mbus_fmt, &mbus_fmt); |
7da8a6cb MK |
429 | |
430 | if (ret && ret != -ENOIOCTLCMD) { | |
431 | v4l2_err(&vpfe_dev->v4l2_dev, | |
d3ca7759 | 432 | "error in getting g_mbus_fmt from sub device\n"); |
7da8a6cb MK |
433 | return ret; |
434 | } | |
d3ca7759 HV |
435 | v4l2_fill_pix_format(pix, &mbus_fmt); |
436 | pix->bytesperline = pix->width * 2; | |
437 | pix->sizeimage = pix->bytesperline * pix->height; | |
7da8a6cb MK |
438 | |
439 | /* Sets the values in CCDC */ | |
440 | ret = vpfe_config_ccdc_image_format(vpfe_dev); | |
441 | if (ret) | |
442 | return ret; | |
443 | ||
444 | /* Update the values of sizeimage and bytesperline */ | |
445 | if (!ret) { | |
d3ca7759 HV |
446 | pix->bytesperline = ccdc_dev->hw_ops.get_line_length(); |
447 | pix->sizeimage = pix->bytesperline * pix->height; | |
7da8a6cb MK |
448 | } |
449 | return ret; | |
450 | } | |
451 | ||
452 | static int vpfe_initialize_device(struct vpfe_device *vpfe_dev) | |
453 | { | |
454 | int ret = 0; | |
455 | ||
456 | /* set first input of current subdevice as the current input */ | |
457 | vpfe_dev->current_input = 0; | |
458 | ||
459 | /* set default standard */ | |
460 | vpfe_dev->std_index = 0; | |
461 | ||
462 | /* Configure the default format information */ | |
463 | ret = vpfe_config_image_format(vpfe_dev, | |
464 | &vpfe_standards[vpfe_dev->std_index].std_id); | |
465 | if (ret) | |
466 | return ret; | |
467 | ||
468 | /* now open the ccdc device to initialize it */ | |
469 | mutex_lock(&ccdc_lock); | |
470 | if (NULL == ccdc_dev) { | |
471 | v4l2_err(&vpfe_dev->v4l2_dev, "ccdc device not registered\n"); | |
472 | ret = -ENODEV; | |
473 | goto unlock; | |
474 | } | |
475 | ||
476 | if (!try_module_get(ccdc_dev->owner)) { | |
477 | v4l2_err(&vpfe_dev->v4l2_dev, "Couldn't lock ccdc module\n"); | |
478 | ret = -ENODEV; | |
479 | goto unlock; | |
480 | } | |
481 | ret = ccdc_dev->hw_ops.open(vpfe_dev->pdev); | |
482 | if (!ret) | |
483 | vpfe_dev->initialized = 1; | |
085b54a2 VH |
484 | |
485 | /* Clear all VPFE/CCDC interrupts */ | |
486 | if (vpfe_dev->cfg->clr_intr) | |
487 | vpfe_dev->cfg->clr_intr(-1); | |
488 | ||
7da8a6cb MK |
489 | unlock: |
490 | mutex_unlock(&ccdc_lock); | |
491 | return ret; | |
492 | } | |
493 | ||
494 | /* | |
495 | * vpfe_open : It creates object of file handle structure and | |
496 | * stores it in private_data member of filepointer | |
497 | */ | |
498 | static int vpfe_open(struct file *file) | |
499 | { | |
500 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
501 | struct vpfe_fh *fh; | |
502 | ||
503 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_open\n"); | |
504 | ||
505 | if (!vpfe_dev->cfg->num_subdevs) { | |
506 | v4l2_err(&vpfe_dev->v4l2_dev, "No decoder registered\n"); | |
507 | return -ENODEV; | |
508 | } | |
509 | ||
510 | /* Allocate memory for the file handle object */ | |
511 | fh = kmalloc(sizeof(struct vpfe_fh), GFP_KERNEL); | |
512 | if (NULL == fh) { | |
513 | v4l2_err(&vpfe_dev->v4l2_dev, | |
514 | "unable to allocate memory for file handle object\n"); | |
515 | return -ENOMEM; | |
516 | } | |
517 | /* store pointer to fh in private_data member of file */ | |
518 | file->private_data = fh; | |
519 | fh->vpfe_dev = vpfe_dev; | |
520 | mutex_lock(&vpfe_dev->lock); | |
521 | /* If decoder is not initialized. initialize it */ | |
522 | if (!vpfe_dev->initialized) { | |
523 | if (vpfe_initialize_device(vpfe_dev)) { | |
524 | mutex_unlock(&vpfe_dev->lock); | |
525 | return -ENODEV; | |
526 | } | |
527 | } | |
528 | /* Increment device usrs counter */ | |
529 | vpfe_dev->usrs++; | |
530 | /* Set io_allowed member to false */ | |
531 | fh->io_allowed = 0; | |
532 | /* Initialize priority of this instance to default priority */ | |
533 | fh->prio = V4L2_PRIORITY_UNSET; | |
534 | v4l2_prio_open(&vpfe_dev->prio, &fh->prio); | |
535 | mutex_unlock(&vpfe_dev->lock); | |
536 | return 0; | |
537 | } | |
538 | ||
539 | static void vpfe_schedule_next_buffer(struct vpfe_device *vpfe_dev) | |
540 | { | |
541 | unsigned long addr; | |
542 | ||
543 | vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next, | |
544 | struct videobuf_buffer, queue); | |
545 | list_del(&vpfe_dev->next_frm->queue); | |
546 | vpfe_dev->next_frm->state = VIDEOBUF_ACTIVE; | |
547 | addr = videobuf_to_dma_contig(vpfe_dev->next_frm); | |
844cc0dc VH |
548 | |
549 | ccdc_dev->hw_ops.setfbaddr(addr); | |
550 | } | |
551 | ||
552 | static void vpfe_schedule_bottom_field(struct vpfe_device *vpfe_dev) | |
553 | { | |
554 | unsigned long addr; | |
555 | ||
556 | addr = videobuf_to_dma_contig(vpfe_dev->cur_frm); | |
557 | addr += vpfe_dev->field_off; | |
7da8a6cb MK |
558 | ccdc_dev->hw_ops.setfbaddr(addr); |
559 | } | |
560 | ||
561 | static void vpfe_process_buffer_complete(struct vpfe_device *vpfe_dev) | |
562 | { | |
8e6057b5 | 563 | v4l2_get_timestamp(&vpfe_dev->cur_frm->ts); |
7da8a6cb MK |
564 | vpfe_dev->cur_frm->state = VIDEOBUF_DONE; |
565 | vpfe_dev->cur_frm->size = vpfe_dev->fmt.fmt.pix.sizeimage; | |
566 | wake_up_interruptible(&vpfe_dev->cur_frm->done); | |
567 | vpfe_dev->cur_frm = vpfe_dev->next_frm; | |
568 | } | |
569 | ||
570 | /* ISR for VINT0*/ | |
571 | static irqreturn_t vpfe_isr(int irq, void *dev_id) | |
572 | { | |
573 | struct vpfe_device *vpfe_dev = dev_id; | |
574 | enum v4l2_field field; | |
7da8a6cb MK |
575 | int fid; |
576 | ||
577 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nStarting vpfe_isr...\n"); | |
578 | field = vpfe_dev->fmt.fmt.pix.field; | |
579 | ||
580 | /* if streaming not started, don't do anything */ | |
581 | if (!vpfe_dev->started) | |
085b54a2 | 582 | goto clear_intr; |
7da8a6cb MK |
583 | |
584 | /* only for 6446 this will be applicable */ | |
585 | if (NULL != ccdc_dev->hw_ops.reset) | |
586 | ccdc_dev->hw_ops.reset(); | |
587 | ||
588 | if (field == V4L2_FIELD_NONE) { | |
589 | /* handle progressive frame capture */ | |
590 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
591 | "frame format is progressive...\n"); | |
592 | if (vpfe_dev->cur_frm != vpfe_dev->next_frm) | |
593 | vpfe_process_buffer_complete(vpfe_dev); | |
085b54a2 | 594 | goto clear_intr; |
7da8a6cb MK |
595 | } |
596 | ||
597 | /* interlaced or TB capture check which field we are in hardware */ | |
598 | fid = ccdc_dev->hw_ops.getfid(); | |
599 | ||
600 | /* switch the software maintained field id */ | |
601 | vpfe_dev->field_id ^= 1; | |
602 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "field id = %x:%x.\n", | |
603 | fid, vpfe_dev->field_id); | |
604 | if (fid == vpfe_dev->field_id) { | |
605 | /* we are in-sync here,continue */ | |
606 | if (fid == 0) { | |
607 | /* | |
608 | * One frame is just being captured. If the next frame | |
609 | * is available, release the current frame and move on | |
610 | */ | |
611 | if (vpfe_dev->cur_frm != vpfe_dev->next_frm) | |
612 | vpfe_process_buffer_complete(vpfe_dev); | |
613 | /* | |
614 | * based on whether the two fields are stored | |
615 | * interleavely or separately in memory, reconfigure | |
616 | * the CCDC memory address | |
617 | */ | |
618 | if (field == V4L2_FIELD_SEQ_TB) { | |
844cc0dc | 619 | vpfe_schedule_bottom_field(vpfe_dev); |
7da8a6cb | 620 | } |
085b54a2 | 621 | goto clear_intr; |
7da8a6cb MK |
622 | } |
623 | /* | |
624 | * if one field is just being captured configure | |
625 | * the next frame get the next frame from the empty | |
626 | * queue if no frame is available hold on to the | |
627 | * current buffer | |
628 | */ | |
629 | spin_lock(&vpfe_dev->dma_queue_lock); | |
630 | if (!list_empty(&vpfe_dev->dma_queue) && | |
631 | vpfe_dev->cur_frm == vpfe_dev->next_frm) | |
632 | vpfe_schedule_next_buffer(vpfe_dev); | |
633 | spin_unlock(&vpfe_dev->dma_queue_lock); | |
634 | } else if (fid == 0) { | |
635 | /* | |
636 | * out of sync. Recover from any hardware out-of-sync. | |
637 | * May loose one frame | |
638 | */ | |
639 | vpfe_dev->field_id = fid; | |
640 | } | |
085b54a2 VH |
641 | clear_intr: |
642 | if (vpfe_dev->cfg->clr_intr) | |
643 | vpfe_dev->cfg->clr_intr(irq); | |
644 | ||
7da8a6cb MK |
645 | return IRQ_HANDLED; |
646 | } | |
647 | ||
648 | /* vdint1_isr - isr handler for VINT1 interrupt */ | |
649 | static irqreturn_t vdint1_isr(int irq, void *dev_id) | |
650 | { | |
651 | struct vpfe_device *vpfe_dev = dev_id; | |
652 | ||
653 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nInside vdint1_isr...\n"); | |
654 | ||
655 | /* if streaming not started, don't do anything */ | |
085b54a2 VH |
656 | if (!vpfe_dev->started) { |
657 | if (vpfe_dev->cfg->clr_intr) | |
658 | vpfe_dev->cfg->clr_intr(irq); | |
7da8a6cb | 659 | return IRQ_HANDLED; |
085b54a2 | 660 | } |
7da8a6cb MK |
661 | |
662 | spin_lock(&vpfe_dev->dma_queue_lock); | |
663 | if ((vpfe_dev->fmt.fmt.pix.field == V4L2_FIELD_NONE) && | |
664 | !list_empty(&vpfe_dev->dma_queue) && | |
665 | vpfe_dev->cur_frm == vpfe_dev->next_frm) | |
666 | vpfe_schedule_next_buffer(vpfe_dev); | |
667 | spin_unlock(&vpfe_dev->dma_queue_lock); | |
085b54a2 VH |
668 | |
669 | if (vpfe_dev->cfg->clr_intr) | |
670 | vpfe_dev->cfg->clr_intr(irq); | |
671 | ||
7da8a6cb MK |
672 | return IRQ_HANDLED; |
673 | } | |
674 | ||
675 | static void vpfe_detach_irq(struct vpfe_device *vpfe_dev) | |
676 | { | |
677 | enum ccdc_frmfmt frame_format; | |
678 | ||
679 | frame_format = ccdc_dev->hw_ops.get_frame_format(); | |
680 | if (frame_format == CCDC_FRMFMT_PROGRESSIVE) | |
1ead696b | 681 | free_irq(vpfe_dev->ccdc_irq1, vpfe_dev); |
7da8a6cb MK |
682 | } |
683 | ||
684 | static int vpfe_attach_irq(struct vpfe_device *vpfe_dev) | |
685 | { | |
686 | enum ccdc_frmfmt frame_format; | |
687 | ||
688 | frame_format = ccdc_dev->hw_ops.get_frame_format(); | |
689 | if (frame_format == CCDC_FRMFMT_PROGRESSIVE) { | |
690 | return request_irq(vpfe_dev->ccdc_irq1, vdint1_isr, | |
691 | IRQF_DISABLED, "vpfe_capture1", | |
692 | vpfe_dev); | |
693 | } | |
694 | return 0; | |
695 | } | |
696 | ||
697 | /* vpfe_stop_ccdc_capture: stop streaming in ccdc/isif */ | |
698 | static void vpfe_stop_ccdc_capture(struct vpfe_device *vpfe_dev) | |
699 | { | |
700 | vpfe_dev->started = 0; | |
701 | ccdc_dev->hw_ops.enable(0); | |
702 | if (ccdc_dev->hw_ops.enable_out_to_sdram) | |
703 | ccdc_dev->hw_ops.enable_out_to_sdram(0); | |
704 | } | |
705 | ||
706 | /* | |
707 | * vpfe_release : This function deletes buffer queue, frees the | |
708 | * buffers and the vpfe file handle | |
709 | */ | |
710 | static int vpfe_release(struct file *file) | |
711 | { | |
712 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
713 | struct vpfe_fh *fh = file->private_data; | |
714 | struct vpfe_subdev_info *sdinfo; | |
715 | int ret; | |
716 | ||
717 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_release\n"); | |
718 | ||
719 | /* Get the device lock */ | |
720 | mutex_lock(&vpfe_dev->lock); | |
721 | /* if this instance is doing IO */ | |
722 | if (fh->io_allowed) { | |
723 | if (vpfe_dev->started) { | |
724 | sdinfo = vpfe_dev->current_subdev; | |
725 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, | |
726 | sdinfo->grp_id, | |
727 | video, s_stream, 0); | |
728 | if (ret && (ret != -ENOIOCTLCMD)) | |
729 | v4l2_err(&vpfe_dev->v4l2_dev, | |
730 | "stream off failed in subdev\n"); | |
731 | vpfe_stop_ccdc_capture(vpfe_dev); | |
732 | vpfe_detach_irq(vpfe_dev); | |
733 | videobuf_streamoff(&vpfe_dev->buffer_queue); | |
734 | } | |
735 | vpfe_dev->io_usrs = 0; | |
736 | vpfe_dev->numbuffers = config_params.numbuffers; | |
737 | } | |
738 | ||
739 | /* Decrement device usrs counter */ | |
740 | vpfe_dev->usrs--; | |
741 | /* Close the priority */ | |
ffb4877b | 742 | v4l2_prio_close(&vpfe_dev->prio, fh->prio); |
7da8a6cb MK |
743 | /* If this is the last file handle */ |
744 | if (!vpfe_dev->usrs) { | |
745 | vpfe_dev->initialized = 0; | |
746 | if (ccdc_dev->hw_ops.close) | |
747 | ccdc_dev->hw_ops.close(vpfe_dev->pdev); | |
748 | module_put(ccdc_dev->owner); | |
749 | } | |
750 | mutex_unlock(&vpfe_dev->lock); | |
751 | file->private_data = NULL; | |
752 | /* Free memory allocated to file handle object */ | |
753 | kfree(fh); | |
754 | return 0; | |
755 | } | |
756 | ||
757 | /* | |
758 | * vpfe_mmap : It is used to map kernel space buffers | |
759 | * into user spaces | |
760 | */ | |
761 | static int vpfe_mmap(struct file *file, struct vm_area_struct *vma) | |
762 | { | |
763 | /* Get the device object and file handle object */ | |
764 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
765 | ||
766 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_mmap\n"); | |
767 | ||
768 | return videobuf_mmap_mapper(&vpfe_dev->buffer_queue, vma); | |
769 | } | |
770 | ||
771 | /* | |
772 | * vpfe_poll: It is used for select/poll system call | |
773 | */ | |
774 | static unsigned int vpfe_poll(struct file *file, poll_table *wait) | |
775 | { | |
776 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
777 | ||
778 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_poll\n"); | |
779 | ||
780 | if (vpfe_dev->started) | |
781 | return videobuf_poll_stream(file, | |
782 | &vpfe_dev->buffer_queue, wait); | |
783 | return 0; | |
784 | } | |
785 | ||
786 | /* vpfe capture driver file operations */ | |
787 | static const struct v4l2_file_operations vpfe_fops = { | |
788 | .owner = THIS_MODULE, | |
789 | .open = vpfe_open, | |
790 | .release = vpfe_release, | |
791 | .unlocked_ioctl = video_ioctl2, | |
792 | .mmap = vpfe_mmap, | |
793 | .poll = vpfe_poll | |
794 | }; | |
795 | ||
796 | /* | |
797 | * vpfe_check_format() | |
798 | * This function adjust the input pixel format as per hardware | |
799 | * capabilities and update the same in pixfmt. | |
800 | * Following algorithm used :- | |
801 | * | |
802 | * If given pixformat is not in the vpfe list of pix formats or not | |
803 | * supported by the hardware, current value of pixformat in the device | |
804 | * is used | |
805 | * If given field is not supported, then current field is used. If field | |
806 | * is different from current, then it is matched with that from sub device. | |
807 | * Minimum height is 2 lines for interlaced or tb field and 1 line for | |
808 | * progressive. Maximum height is clamped to active active lines of scan | |
809 | * Minimum width is 32 bytes in memory and width is clamped to active | |
810 | * pixels of scan. | |
811 | * bytesperline is a multiple of 32. | |
812 | */ | |
813 | static const struct vpfe_pixel_format * | |
814 | vpfe_check_format(struct vpfe_device *vpfe_dev, | |
815 | struct v4l2_pix_format *pixfmt) | |
816 | { | |
817 | u32 min_height = 1, min_width = 32, max_width, max_height; | |
818 | const struct vpfe_pixel_format *vpfe_pix_fmt; | |
819 | u32 pix; | |
820 | int temp, found; | |
821 | ||
822 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
823 | if (NULL == vpfe_pix_fmt) { | |
824 | /* | |
825 | * use current pixel format in the vpfe device. We | |
826 | * will find this pix format in the table | |
827 | */ | |
828 | pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat; | |
829 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
830 | } | |
831 | ||
832 | /* check if hw supports it */ | |
833 | temp = 0; | |
834 | found = 0; | |
835 | while (ccdc_dev->hw_ops.enum_pix(&pix, temp) >= 0) { | |
836 | if (vpfe_pix_fmt->fmtdesc.pixelformat == pix) { | |
837 | found = 1; | |
838 | break; | |
839 | } | |
840 | temp++; | |
841 | } | |
842 | ||
843 | if (!found) { | |
844 | /* use current pixel format */ | |
845 | pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat; | |
846 | /* | |
847 | * Since this is currently used in the vpfe device, we | |
848 | * will find this pix format in the table | |
849 | */ | |
850 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
851 | } | |
852 | ||
853 | /* check what field format is supported */ | |
854 | if (pixfmt->field == V4L2_FIELD_ANY) { | |
855 | /* if field is any, use current value as default */ | |
856 | pixfmt->field = vpfe_dev->fmt.fmt.pix.field; | |
857 | } | |
858 | ||
859 | /* | |
860 | * if field is not same as current field in the vpfe device | |
861 | * try matching the field with the sub device field | |
862 | */ | |
863 | if (vpfe_dev->fmt.fmt.pix.field != pixfmt->field) { | |
864 | /* | |
865 | * If field value is not in the supported fields, use current | |
866 | * field used in the device as default | |
867 | */ | |
868 | switch (pixfmt->field) { | |
869 | case V4L2_FIELD_INTERLACED: | |
870 | case V4L2_FIELD_SEQ_TB: | |
871 | /* if sub device is supporting progressive, use that */ | |
872 | if (!vpfe_dev->std_info.frame_format) | |
873 | pixfmt->field = V4L2_FIELD_NONE; | |
874 | break; | |
875 | case V4L2_FIELD_NONE: | |
876 | if (vpfe_dev->std_info.frame_format) | |
877 | pixfmt->field = V4L2_FIELD_INTERLACED; | |
878 | break; | |
879 | ||
880 | default: | |
881 | /* use current field as default */ | |
882 | pixfmt->field = vpfe_dev->fmt.fmt.pix.field; | |
883 | break; | |
884 | } | |
885 | } | |
886 | ||
887 | /* Now adjust image resolutions supported */ | |
888 | if (pixfmt->field == V4L2_FIELD_INTERLACED || | |
889 | pixfmt->field == V4L2_FIELD_SEQ_TB) | |
890 | min_height = 2; | |
891 | ||
892 | max_width = vpfe_dev->std_info.active_pixels; | |
893 | max_height = vpfe_dev->std_info.active_lines; | |
894 | min_width /= vpfe_pix_fmt->bpp; | |
895 | ||
896 | v4l2_info(&vpfe_dev->v4l2_dev, "width = %d, height = %d, bpp = %d\n", | |
897 | pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp); | |
898 | ||
899 | pixfmt->width = clamp((pixfmt->width), min_width, max_width); | |
900 | pixfmt->height = clamp((pixfmt->height), min_height, max_height); | |
901 | ||
902 | /* If interlaced, adjust height to be a multiple of 2 */ | |
903 | if (pixfmt->field == V4L2_FIELD_INTERLACED) | |
904 | pixfmt->height &= (~1); | |
905 | /* | |
906 | * recalculate bytesperline and sizeimage since width | |
907 | * and height might have changed | |
908 | */ | |
909 | pixfmt->bytesperline = (((pixfmt->width * vpfe_pix_fmt->bpp) + 31) | |
910 | & ~31); | |
911 | if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) | |
912 | pixfmt->sizeimage = | |
913 | pixfmt->bytesperline * pixfmt->height + | |
914 | ((pixfmt->bytesperline * pixfmt->height) >> 1); | |
915 | else | |
916 | pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; | |
917 | ||
918 | v4l2_info(&vpfe_dev->v4l2_dev, "adjusted width = %d, height =" | |
919 | " %d, bpp = %d, bytesperline = %d, sizeimage = %d\n", | |
920 | pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp, | |
921 | pixfmt->bytesperline, pixfmt->sizeimage); | |
922 | return vpfe_pix_fmt; | |
923 | } | |
924 | ||
925 | static int vpfe_querycap(struct file *file, void *priv, | |
926 | struct v4l2_capability *cap) | |
927 | { | |
928 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
929 | ||
930 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querycap\n"); | |
931 | ||
932 | cap->version = VPFE_CAPTURE_VERSION_CODE; | |
933 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; | |
934 | strlcpy(cap->driver, CAPTURE_DRV_NAME, sizeof(cap->driver)); | |
935 | strlcpy(cap->bus_info, "VPFE", sizeof(cap->bus_info)); | |
936 | strlcpy(cap->card, vpfe_dev->cfg->card_name, sizeof(cap->card)); | |
937 | return 0; | |
938 | } | |
939 | ||
940 | static int vpfe_g_fmt_vid_cap(struct file *file, void *priv, | |
941 | struct v4l2_format *fmt) | |
942 | { | |
943 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
944 | int ret = 0; | |
945 | ||
946 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_fmt_vid_cap\n"); | |
947 | /* Fill in the information about format */ | |
948 | *fmt = vpfe_dev->fmt; | |
949 | return ret; | |
950 | } | |
951 | ||
952 | static int vpfe_enum_fmt_vid_cap(struct file *file, void *priv, | |
953 | struct v4l2_fmtdesc *fmt) | |
954 | { | |
955 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
956 | const struct vpfe_pixel_format *pix_fmt; | |
957 | int temp_index; | |
958 | u32 pix; | |
959 | ||
960 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_fmt_vid_cap\n"); | |
961 | ||
962 | if (ccdc_dev->hw_ops.enum_pix(&pix, fmt->index) < 0) | |
963 | return -EINVAL; | |
964 | ||
965 | /* Fill in the information about format */ | |
966 | pix_fmt = vpfe_lookup_pix_format(pix); | |
967 | if (NULL != pix_fmt) { | |
968 | temp_index = fmt->index; | |
969 | *fmt = pix_fmt->fmtdesc; | |
970 | fmt->index = temp_index; | |
971 | return 0; | |
972 | } | |
973 | return -EINVAL; | |
974 | } | |
975 | ||
976 | static int vpfe_s_fmt_vid_cap(struct file *file, void *priv, | |
977 | struct v4l2_format *fmt) | |
978 | { | |
979 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
980 | const struct vpfe_pixel_format *pix_fmts; | |
981 | int ret = 0; | |
982 | ||
983 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_fmt_vid_cap\n"); | |
984 | ||
985 | /* If streaming is started, return error */ | |
986 | if (vpfe_dev->started) { | |
987 | v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is started\n"); | |
988 | return -EBUSY; | |
989 | } | |
990 | ||
991 | /* Check for valid frame format */ | |
992 | pix_fmts = vpfe_check_format(vpfe_dev, &fmt->fmt.pix); | |
993 | ||
994 | if (NULL == pix_fmts) | |
995 | return -EINVAL; | |
996 | ||
997 | /* store the pixel format in the device object */ | |
998 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
999 | if (ret) | |
1000 | return ret; | |
1001 | ||
1002 | /* First detach any IRQ if currently attached */ | |
1003 | vpfe_detach_irq(vpfe_dev); | |
1004 | vpfe_dev->fmt = *fmt; | |
1005 | /* set image capture parameters in the ccdc */ | |
1006 | ret = vpfe_config_ccdc_image_format(vpfe_dev); | |
1007 | mutex_unlock(&vpfe_dev->lock); | |
1008 | return ret; | |
1009 | } | |
1010 | ||
1011 | static int vpfe_try_fmt_vid_cap(struct file *file, void *priv, | |
1012 | struct v4l2_format *f) | |
1013 | { | |
1014 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1015 | const struct vpfe_pixel_format *pix_fmts; | |
1016 | ||
1017 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_try_fmt_vid_cap\n"); | |
1018 | ||
1019 | pix_fmts = vpfe_check_format(vpfe_dev, &f->fmt.pix); | |
1020 | if (NULL == pix_fmts) | |
1021 | return -EINVAL; | |
1022 | return 0; | |
1023 | } | |
1024 | ||
1025 | /* | |
1026 | * vpfe_get_subdev_input_index - Get subdev index and subdev input index for a | |
1027 | * given app input index | |
1028 | */ | |
1029 | static int vpfe_get_subdev_input_index(struct vpfe_device *vpfe_dev, | |
1030 | int *subdev_index, | |
1031 | int *subdev_input_index, | |
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 (app_input_index < (j + sdinfo->num_inputs)) { | |
1041 | *subdev_index = i; | |
1042 | *subdev_input_index = app_input_index - j; | |
1043 | return 0; | |
1044 | } | |
1045 | j += sdinfo->num_inputs; | |
1046 | } | |
1047 | return -EINVAL; | |
1048 | } | |
1049 | ||
1050 | /* | |
1051 | * vpfe_get_app_input - Get app input index for a given subdev input index | |
1052 | * driver stores the input index of the current sub device and translate it | |
1053 | * when application request the current input | |
1054 | */ | |
1055 | static int vpfe_get_app_input_index(struct vpfe_device *vpfe_dev, | |
1056 | int *app_input_index) | |
1057 | { | |
1058 | struct vpfe_config *cfg = vpfe_dev->cfg; | |
1059 | struct vpfe_subdev_info *sdinfo; | |
1060 | int i, j = 0; | |
1061 | ||
1062 | for (i = 0; i < cfg->num_subdevs; i++) { | |
1063 | sdinfo = &cfg->sub_devs[i]; | |
1064 | if (!strcmp(sdinfo->name, vpfe_dev->current_subdev->name)) { | |
1065 | if (vpfe_dev->current_input >= sdinfo->num_inputs) | |
1066 | return -1; | |
1067 | *app_input_index = j + vpfe_dev->current_input; | |
1068 | return 0; | |
1069 | } | |
1070 | j += sdinfo->num_inputs; | |
1071 | } | |
1072 | return -EINVAL; | |
1073 | } | |
1074 | ||
1075 | static int vpfe_enum_input(struct file *file, void *priv, | |
1076 | struct v4l2_input *inp) | |
1077 | { | |
1078 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1079 | struct vpfe_subdev_info *sdinfo; | |
1080 | int subdev, index ; | |
1081 | ||
1082 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_input\n"); | |
1083 | ||
1084 | if (vpfe_get_subdev_input_index(vpfe_dev, | |
1085 | &subdev, | |
1086 | &index, | |
1087 | inp->index) < 0) { | |
1088 | v4l2_err(&vpfe_dev->v4l2_dev, "input information not found" | |
1089 | " for the subdev\n"); | |
1090 | return -EINVAL; | |
1091 | } | |
1092 | sdinfo = &vpfe_dev->cfg->sub_devs[subdev]; | |
1093 | memcpy(inp, &sdinfo->inputs[index], sizeof(struct v4l2_input)); | |
1094 | return 0; | |
1095 | } | |
1096 | ||
1097 | static int vpfe_g_input(struct file *file, void *priv, unsigned int *index) | |
1098 | { | |
1099 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1100 | ||
1101 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_input\n"); | |
1102 | ||
1103 | return vpfe_get_app_input_index(vpfe_dev, index); | |
1104 | } | |
1105 | ||
1106 | ||
1107 | static int vpfe_s_input(struct file *file, void *priv, unsigned int index) | |
1108 | { | |
1109 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1110 | struct vpfe_subdev_info *sdinfo; | |
1111 | int subdev_index, inp_index; | |
1112 | struct vpfe_route *route; | |
1113 | u32 input = 0, output = 0; | |
1114 | int ret = -EINVAL; | |
1115 | ||
1116 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_input\n"); | |
1117 | ||
1118 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1119 | if (ret) | |
1120 | return ret; | |
1121 | ||
1122 | /* | |
1123 | * If streaming is started return device busy | |
1124 | * error | |
1125 | */ | |
1126 | if (vpfe_dev->started) { | |
1127 | v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is on\n"); | |
1128 | ret = -EBUSY; | |
1129 | goto unlock_out; | |
1130 | } | |
9a888ba2 PST |
1131 | ret = vpfe_get_subdev_input_index(vpfe_dev, |
1132 | &subdev_index, | |
1133 | &inp_index, | |
1134 | index); | |
1135 | if (ret < 0) { | |
7da8a6cb MK |
1136 | v4l2_err(&vpfe_dev->v4l2_dev, "invalid input index\n"); |
1137 | goto unlock_out; | |
1138 | } | |
1139 | ||
1140 | sdinfo = &vpfe_dev->cfg->sub_devs[subdev_index]; | |
1141 | route = &sdinfo->routes[inp_index]; | |
1142 | if (route && sdinfo->can_route) { | |
1143 | input = route->input; | |
1144 | output = route->output; | |
1145 | } | |
1146 | ||
1147 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1148 | video, s_routing, input, output, 0); | |
1149 | ||
1150 | if (ret) { | |
1151 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1152 | "vpfe_doioctl:error in setting input in decoder\n"); | |
1153 | ret = -EINVAL; | |
1154 | goto unlock_out; | |
1155 | } | |
1156 | vpfe_dev->current_subdev = sdinfo; | |
1157 | vpfe_dev->current_input = index; | |
1158 | vpfe_dev->std_index = 0; | |
1159 | ||
1160 | /* set the bus/interface parameter for the sub device in ccdc */ | |
1161 | ret = ccdc_dev->hw_ops.set_hw_if_params(&sdinfo->ccdc_if_params); | |
1162 | if (ret) | |
1163 | goto unlock_out; | |
1164 | ||
1165 | /* set the default image parameters in the device */ | |
1166 | ret = vpfe_config_image_format(vpfe_dev, | |
1167 | &vpfe_standards[vpfe_dev->std_index].std_id); | |
1168 | unlock_out: | |
1169 | mutex_unlock(&vpfe_dev->lock); | |
1170 | return ret; | |
1171 | } | |
1172 | ||
1173 | static int vpfe_querystd(struct file *file, void *priv, v4l2_std_id *std_id) | |
1174 | { | |
1175 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1176 | struct vpfe_subdev_info *sdinfo; | |
1177 | int ret = 0; | |
1178 | ||
1179 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querystd\n"); | |
1180 | ||
1181 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1182 | sdinfo = vpfe_dev->current_subdev; | |
1183 | if (ret) | |
1184 | return ret; | |
1185 | /* Call querystd function of decoder device */ | |
1186 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1187 | video, querystd, std_id); | |
1188 | mutex_unlock(&vpfe_dev->lock); | |
1189 | return ret; | |
1190 | } | |
1191 | ||
1192 | static int vpfe_s_std(struct file *file, void *priv, v4l2_std_id *std_id) | |
1193 | { | |
1194 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1195 | struct vpfe_subdev_info *sdinfo; | |
1196 | int ret = 0; | |
1197 | ||
1198 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_std\n"); | |
1199 | ||
1200 | /* Call decoder driver function to set the standard */ | |
1201 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1202 | if (ret) | |
1203 | return ret; | |
1204 | ||
1205 | sdinfo = vpfe_dev->current_subdev; | |
1206 | /* If streaming is started, return device busy error */ | |
1207 | if (vpfe_dev->started) { | |
1208 | v4l2_err(&vpfe_dev->v4l2_dev, "streaming is started\n"); | |
1209 | ret = -EBUSY; | |
1210 | goto unlock_out; | |
1211 | } | |
1212 | ||
1213 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1214 | core, s_std, *std_id); | |
1215 | if (ret < 0) { | |
1216 | v4l2_err(&vpfe_dev->v4l2_dev, "Failed to set standard\n"); | |
1217 | goto unlock_out; | |
1218 | } | |
1219 | ret = vpfe_config_image_format(vpfe_dev, std_id); | |
1220 | ||
1221 | unlock_out: | |
1222 | mutex_unlock(&vpfe_dev->lock); | |
1223 | return ret; | |
1224 | } | |
1225 | ||
1226 | static int vpfe_g_std(struct file *file, void *priv, v4l2_std_id *std_id) | |
1227 | { | |
1228 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1229 | ||
1230 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_std\n"); | |
1231 | ||
1232 | *std_id = vpfe_standards[vpfe_dev->std_index].std_id; | |
1233 | return 0; | |
1234 | } | |
1235 | /* | |
1236 | * Videobuf operations | |
1237 | */ | |
1238 | static int vpfe_videobuf_setup(struct videobuf_queue *vq, | |
1239 | unsigned int *count, | |
1240 | unsigned int *size) | |
1241 | { | |
1242 | struct vpfe_fh *fh = vq->priv_data; | |
1243 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1244 | ||
1245 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_setup\n"); | |
844cc0dc VH |
1246 | *size = vpfe_dev->fmt.fmt.pix.sizeimage; |
1247 | if (vpfe_dev->memory == V4L2_MEMORY_MMAP && | |
1248 | vpfe_dev->fmt.fmt.pix.sizeimage > config_params.device_bufsize) | |
1249 | *size = config_params.device_bufsize; | |
7da8a6cb MK |
1250 | |
1251 | if (*count < config_params.min_numbuffers) | |
1252 | *count = config_params.min_numbuffers; | |
1253 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1254 | "count=%d, size=%d\n", *count, *size); | |
1255 | return 0; | |
1256 | } | |
1257 | ||
1258 | static int vpfe_videobuf_prepare(struct videobuf_queue *vq, | |
1259 | struct videobuf_buffer *vb, | |
1260 | enum v4l2_field field) | |
1261 | { | |
1262 | struct vpfe_fh *fh = vq->priv_data; | |
1263 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
844cc0dc VH |
1264 | unsigned long addr; |
1265 | int ret; | |
7da8a6cb MK |
1266 | |
1267 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_prepare\n"); | |
1268 | ||
1269 | /* If buffer is not initialized, initialize it */ | |
1270 | if (VIDEOBUF_NEEDS_INIT == vb->state) { | |
1271 | vb->width = vpfe_dev->fmt.fmt.pix.width; | |
1272 | vb->height = vpfe_dev->fmt.fmt.pix.height; | |
1273 | vb->size = vpfe_dev->fmt.fmt.pix.sizeimage; | |
1274 | vb->field = field; | |
844cc0dc | 1275 | |
b1dc614a | 1276 | ret = videobuf_iolock(vq, vb, NULL); |
844cc0dc VH |
1277 | if (ret < 0) |
1278 | return ret; | |
1279 | ||
1280 | addr = videobuf_to_dma_contig(vb); | |
1281 | /* Make sure user addresses are aligned to 32 bytes */ | |
1282 | if (!ALIGN(addr, 32)) | |
1283 | return -EINVAL; | |
1284 | ||
1285 | vb->state = VIDEOBUF_PREPARED; | |
7da8a6cb | 1286 | } |
7da8a6cb MK |
1287 | return 0; |
1288 | } | |
1289 | ||
1290 | static void vpfe_videobuf_queue(struct videobuf_queue *vq, | |
1291 | struct videobuf_buffer *vb) | |
1292 | { | |
1293 | /* Get the file handle object and device object */ | |
1294 | struct vpfe_fh *fh = vq->priv_data; | |
1295 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1296 | unsigned long flags; | |
1297 | ||
1298 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_queue\n"); | |
1299 | ||
1300 | /* add the buffer to the DMA queue */ | |
1301 | spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags); | |
1302 | list_add_tail(&vb->queue, &vpfe_dev->dma_queue); | |
1303 | spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags); | |
1304 | ||
1305 | /* Change state of the buffer */ | |
1306 | vb->state = VIDEOBUF_QUEUED; | |
1307 | } | |
1308 | ||
1309 | static void vpfe_videobuf_release(struct videobuf_queue *vq, | |
1310 | struct videobuf_buffer *vb) | |
1311 | { | |
1312 | struct vpfe_fh *fh = vq->priv_data; | |
1313 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1314 | unsigned long flags; | |
1315 | ||
1316 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_videobuf_release\n"); | |
1317 | ||
1318 | /* | |
1319 | * We need to flush the buffer from the dma queue since | |
1320 | * they are de-allocated | |
1321 | */ | |
1322 | spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags); | |
1323 | INIT_LIST_HEAD(&vpfe_dev->dma_queue); | |
1324 | spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags); | |
1325 | videobuf_dma_contig_free(vq, vb); | |
1326 | vb->state = VIDEOBUF_NEEDS_INIT; | |
1327 | } | |
1328 | ||
1329 | static struct videobuf_queue_ops vpfe_videobuf_qops = { | |
1330 | .buf_setup = vpfe_videobuf_setup, | |
1331 | .buf_prepare = vpfe_videobuf_prepare, | |
1332 | .buf_queue = vpfe_videobuf_queue, | |
1333 | .buf_release = vpfe_videobuf_release, | |
1334 | }; | |
1335 | ||
1336 | /* | |
1337 | * vpfe_reqbufs. currently support REQBUF only once opening | |
1338 | * the device. | |
1339 | */ | |
1340 | static int vpfe_reqbufs(struct file *file, void *priv, | |
1341 | struct v4l2_requestbuffers *req_buf) | |
1342 | { | |
1343 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1344 | struct vpfe_fh *fh = file->private_data; | |
1345 | int ret = 0; | |
1346 | ||
1347 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_reqbufs\n"); | |
1348 | ||
1349 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != req_buf->type) { | |
1350 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1351 | return -EINVAL; | |
1352 | } | |
1353 | ||
7da8a6cb MK |
1354 | ret = mutex_lock_interruptible(&vpfe_dev->lock); |
1355 | if (ret) | |
1356 | return ret; | |
1357 | ||
1358 | if (vpfe_dev->io_usrs != 0) { | |
1359 | v4l2_err(&vpfe_dev->v4l2_dev, "Only one IO user allowed\n"); | |
1360 | ret = -EBUSY; | |
1361 | goto unlock_out; | |
1362 | } | |
1363 | ||
1364 | vpfe_dev->memory = req_buf->memory; | |
1365 | videobuf_queue_dma_contig_init(&vpfe_dev->buffer_queue, | |
1366 | &vpfe_videobuf_qops, | |
204e6ea9 | 1367 | vpfe_dev->pdev, |
7da8a6cb MK |
1368 | &vpfe_dev->irqlock, |
1369 | req_buf->type, | |
1370 | vpfe_dev->fmt.fmt.pix.field, | |
1371 | sizeof(struct videobuf_buffer), | |
e3cfd447 | 1372 | fh, NULL); |
7da8a6cb MK |
1373 | |
1374 | fh->io_allowed = 1; | |
1375 | vpfe_dev->io_usrs = 1; | |
1376 | INIT_LIST_HEAD(&vpfe_dev->dma_queue); | |
1377 | ret = videobuf_reqbufs(&vpfe_dev->buffer_queue, req_buf); | |
1378 | unlock_out: | |
1379 | mutex_unlock(&vpfe_dev->lock); | |
1380 | return ret; | |
1381 | } | |
1382 | ||
1383 | static int vpfe_querybuf(struct file *file, void *priv, | |
1384 | struct v4l2_buffer *buf) | |
1385 | { | |
1386 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1387 | ||
1388 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querybuf\n"); | |
1389 | ||
1390 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) { | |
1391 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1392 | return -EINVAL; | |
1393 | } | |
1394 | ||
1395 | if (vpfe_dev->memory != V4L2_MEMORY_MMAP) { | |
1396 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid memory\n"); | |
1397 | return -EINVAL; | |
1398 | } | |
1399 | /* Call videobuf_querybuf to get information */ | |
1400 | return videobuf_querybuf(&vpfe_dev->buffer_queue, buf); | |
1401 | } | |
1402 | ||
1403 | static int vpfe_qbuf(struct file *file, void *priv, | |
1404 | struct v4l2_buffer *p) | |
1405 | { | |
1406 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1407 | struct vpfe_fh *fh = file->private_data; | |
1408 | ||
1409 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_qbuf\n"); | |
1410 | ||
1411 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != p->type) { | |
1412 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1413 | return -EINVAL; | |
1414 | } | |
1415 | ||
1416 | /* | |
1417 | * If this file handle is not allowed to do IO, | |
1418 | * return error | |
1419 | */ | |
1420 | if (!fh->io_allowed) { | |
1421 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1422 | return -EACCES; | |
1423 | } | |
1424 | return videobuf_qbuf(&vpfe_dev->buffer_queue, p); | |
1425 | } | |
1426 | ||
1427 | static int vpfe_dqbuf(struct file *file, void *priv, | |
1428 | struct v4l2_buffer *buf) | |
1429 | { | |
1430 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1431 | ||
1432 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_dqbuf\n"); | |
1433 | ||
1434 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) { | |
1435 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1436 | return -EINVAL; | |
1437 | } | |
1438 | return videobuf_dqbuf(&vpfe_dev->buffer_queue, | |
1439 | buf, file->f_flags & O_NONBLOCK); | |
1440 | } | |
1441 | ||
d73bfc5f VH |
1442 | static int vpfe_queryctrl(struct file *file, void *priv, |
1443 | struct v4l2_queryctrl *qctrl) | |
1444 | { | |
1445 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1446 | struct vpfe_subdev_info *sdinfo; | |
1447 | ||
1448 | sdinfo = vpfe_dev->current_subdev; | |
1449 | ||
1450 | return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1451 | core, queryctrl, qctrl); | |
1452 | ||
1453 | } | |
1454 | ||
1455 | static int vpfe_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) | |
1456 | { | |
1457 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1458 | struct vpfe_subdev_info *sdinfo; | |
1459 | ||
1460 | sdinfo = vpfe_dev->current_subdev; | |
1461 | ||
1462 | return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1463 | core, g_ctrl, ctrl); | |
1464 | } | |
1465 | ||
1466 | static int vpfe_s_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl) | |
1467 | { | |
1468 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1469 | struct vpfe_subdev_info *sdinfo; | |
1470 | ||
1471 | sdinfo = vpfe_dev->current_subdev; | |
1472 | ||
1473 | return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1474 | core, s_ctrl, ctrl); | |
1475 | } | |
1476 | ||
7da8a6cb MK |
1477 | /* |
1478 | * vpfe_calculate_offsets : This function calculates buffers offset | |
1479 | * for top and bottom field | |
1480 | */ | |
1481 | static void vpfe_calculate_offsets(struct vpfe_device *vpfe_dev) | |
1482 | { | |
1483 | struct v4l2_rect image_win; | |
1484 | ||
1485 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_calculate_offsets\n"); | |
1486 | ||
1487 | ccdc_dev->hw_ops.get_image_window(&image_win); | |
1488 | vpfe_dev->field_off = image_win.height * image_win.width; | |
1489 | } | |
1490 | ||
1491 | /* vpfe_start_ccdc_capture: start streaming in ccdc/isif */ | |
1492 | static void vpfe_start_ccdc_capture(struct vpfe_device *vpfe_dev) | |
1493 | { | |
1494 | ccdc_dev->hw_ops.enable(1); | |
1495 | if (ccdc_dev->hw_ops.enable_out_to_sdram) | |
1496 | ccdc_dev->hw_ops.enable_out_to_sdram(1); | |
1497 | vpfe_dev->started = 1; | |
1498 | } | |
1499 | ||
1500 | /* | |
1501 | * vpfe_streamon. Assume the DMA queue is not empty. | |
1502 | * application is expected to call QBUF before calling | |
1503 | * this ioctl. If not, driver returns error | |
1504 | */ | |
1505 | static int vpfe_streamon(struct file *file, void *priv, | |
1506 | enum v4l2_buf_type buf_type) | |
1507 | { | |
1508 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1509 | struct vpfe_fh *fh = file->private_data; | |
1510 | struct vpfe_subdev_info *sdinfo; | |
1511 | unsigned long addr; | |
1512 | int ret = 0; | |
1513 | ||
1514 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamon\n"); | |
1515 | ||
1516 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) { | |
1517 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1518 | return -EINVAL; | |
1519 | } | |
1520 | ||
1521 | /* If file handle is not allowed IO, return error */ | |
1522 | if (!fh->io_allowed) { | |
1523 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1524 | return -EACCES; | |
1525 | } | |
1526 | ||
1527 | sdinfo = vpfe_dev->current_subdev; | |
1528 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1529 | video, s_stream, 1); | |
1530 | ||
1531 | if (ret && (ret != -ENOIOCTLCMD)) { | |
1532 | v4l2_err(&vpfe_dev->v4l2_dev, "stream on failed in subdev\n"); | |
1533 | return -EINVAL; | |
1534 | } | |
1535 | ||
1536 | /* If buffer queue is empty, return error */ | |
1537 | if (list_empty(&vpfe_dev->buffer_queue.stream)) { | |
1538 | v4l2_err(&vpfe_dev->v4l2_dev, "buffer queue is empty\n"); | |
1539 | return -EIO; | |
1540 | } | |
1541 | ||
1542 | /* Call videobuf_streamon to start streaming * in videobuf */ | |
1543 | ret = videobuf_streamon(&vpfe_dev->buffer_queue); | |
1544 | if (ret) | |
1545 | return ret; | |
1546 | ||
1547 | ||
1548 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1549 | if (ret) | |
1550 | goto streamoff; | |
1551 | /* Get the next frame from the buffer queue */ | |
1552 | vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next, | |
1553 | struct videobuf_buffer, queue); | |
1554 | vpfe_dev->cur_frm = vpfe_dev->next_frm; | |
1555 | /* Remove buffer from the buffer queue */ | |
1556 | list_del(&vpfe_dev->cur_frm->queue); | |
1557 | /* Mark state of the current frame to active */ | |
1558 | vpfe_dev->cur_frm->state = VIDEOBUF_ACTIVE; | |
1559 | /* Initialize field_id and started member */ | |
1560 | vpfe_dev->field_id = 0; | |
1561 | addr = videobuf_to_dma_contig(vpfe_dev->cur_frm); | |
1562 | ||
1563 | /* Calculate field offset */ | |
1564 | vpfe_calculate_offsets(vpfe_dev); | |
1565 | ||
1566 | if (vpfe_attach_irq(vpfe_dev) < 0) { | |
1567 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1568 | "Error in attaching interrupt handle\n"); | |
1569 | ret = -EFAULT; | |
1570 | goto unlock_out; | |
1571 | } | |
1572 | if (ccdc_dev->hw_ops.configure() < 0) { | |
1573 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1574 | "Error in configuring ccdc\n"); | |
1575 | ret = -EINVAL; | |
1576 | goto unlock_out; | |
1577 | } | |
1578 | ccdc_dev->hw_ops.setfbaddr((unsigned long)(addr)); | |
1579 | vpfe_start_ccdc_capture(vpfe_dev); | |
1580 | mutex_unlock(&vpfe_dev->lock); | |
1581 | return ret; | |
1582 | unlock_out: | |
1583 | mutex_unlock(&vpfe_dev->lock); | |
1584 | streamoff: | |
1585 | ret = videobuf_streamoff(&vpfe_dev->buffer_queue); | |
1586 | return ret; | |
1587 | } | |
1588 | ||
1589 | static int vpfe_streamoff(struct file *file, void *priv, | |
1590 | enum v4l2_buf_type buf_type) | |
1591 | { | |
1592 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1593 | struct vpfe_fh *fh = file->private_data; | |
1594 | struct vpfe_subdev_info *sdinfo; | |
1595 | int ret = 0; | |
1596 | ||
1597 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamoff\n"); | |
1598 | ||
1599 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) { | |
1600 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1601 | return -EINVAL; | |
1602 | } | |
1603 | ||
1604 | /* If io is allowed for this file handle, return error */ | |
1605 | if (!fh->io_allowed) { | |
1606 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1607 | return -EACCES; | |
1608 | } | |
1609 | ||
1610 | /* If streaming is not started, return error */ | |
1611 | if (!vpfe_dev->started) { | |
1612 | v4l2_err(&vpfe_dev->v4l2_dev, "device started\n"); | |
1613 | return -EINVAL; | |
1614 | } | |
1615 | ||
1616 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1617 | if (ret) | |
1618 | return ret; | |
1619 | ||
1620 | vpfe_stop_ccdc_capture(vpfe_dev); | |
1621 | vpfe_detach_irq(vpfe_dev); | |
1622 | ||
1623 | sdinfo = vpfe_dev->current_subdev; | |
1624 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1625 | video, s_stream, 0); | |
1626 | ||
1627 | if (ret && (ret != -ENOIOCTLCMD)) | |
1628 | v4l2_err(&vpfe_dev->v4l2_dev, "stream off failed in subdev\n"); | |
1629 | ret = videobuf_streamoff(&vpfe_dev->buffer_queue); | |
1630 | mutex_unlock(&vpfe_dev->lock); | |
1631 | return ret; | |
1632 | } | |
1633 | ||
1634 | static int vpfe_cropcap(struct file *file, void *priv, | |
1635 | struct v4l2_cropcap *crop) | |
1636 | { | |
1637 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1638 | ||
1639 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_cropcap\n"); | |
1640 | ||
0b66cf90 | 1641 | if (vpfe_dev->std_index >= ARRAY_SIZE(vpfe_standards)) |
7da8a6cb MK |
1642 | return -EINVAL; |
1643 | ||
1644 | memset(crop, 0, sizeof(struct v4l2_cropcap)); | |
1645 | crop->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1646 | crop->bounds.width = crop->defrect.width = | |
1647 | vpfe_standards[vpfe_dev->std_index].width; | |
1648 | crop->bounds.height = crop->defrect.height = | |
1649 | vpfe_standards[vpfe_dev->std_index].height; | |
1650 | crop->pixelaspect = vpfe_standards[vpfe_dev->std_index].pixelaspect; | |
1651 | return 0; | |
1652 | } | |
1653 | ||
1654 | static int vpfe_g_crop(struct file *file, void *priv, | |
1655 | struct v4l2_crop *crop) | |
1656 | { | |
1657 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1658 | ||
1659 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_crop\n"); | |
1660 | ||
1661 | crop->c = vpfe_dev->crop; | |
1662 | return 0; | |
1663 | } | |
1664 | ||
1665 | static int vpfe_s_crop(struct file *file, void *priv, | |
4f996594 | 1666 | const struct v4l2_crop *crop) |
7da8a6cb MK |
1667 | { |
1668 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
8b6faacd | 1669 | struct v4l2_rect rect = crop->c; |
7da8a6cb MK |
1670 | int ret = 0; |
1671 | ||
1672 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_crop\n"); | |
1673 | ||
1674 | if (vpfe_dev->started) { | |
1675 | /* make sure streaming is not started */ | |
1676 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1677 | "Cannot change crop when streaming is ON\n"); | |
1678 | return -EBUSY; | |
1679 | } | |
1680 | ||
1681 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1682 | if (ret) | |
1683 | return ret; | |
1684 | ||
8b6faacd | 1685 | if (rect.top < 0 || rect.left < 0) { |
7da8a6cb MK |
1686 | v4l2_err(&vpfe_dev->v4l2_dev, |
1687 | "doesn't support negative values for top & left\n"); | |
1688 | ret = -EINVAL; | |
1689 | goto unlock_out; | |
1690 | } | |
1691 | ||
25985edc | 1692 | /* adjust the width to 16 pixel boundary */ |
8b6faacd | 1693 | rect.width = ((rect.width + 15) & ~0xf); |
7da8a6cb MK |
1694 | |
1695 | /* make sure parameters are valid */ | |
8b6faacd | 1696 | if ((rect.left + rect.width > |
7da8a6cb | 1697 | vpfe_dev->std_info.active_pixels) || |
8b6faacd | 1698 | (rect.top + rect.height > |
7da8a6cb MK |
1699 | vpfe_dev->std_info.active_lines)) { |
1700 | v4l2_err(&vpfe_dev->v4l2_dev, "Error in S_CROP params\n"); | |
1701 | ret = -EINVAL; | |
1702 | goto unlock_out; | |
1703 | } | |
8b6faacd LP |
1704 | ccdc_dev->hw_ops.set_image_window(&rect); |
1705 | vpfe_dev->fmt.fmt.pix.width = rect.width; | |
1706 | vpfe_dev->fmt.fmt.pix.height = rect.height; | |
7da8a6cb MK |
1707 | vpfe_dev->fmt.fmt.pix.bytesperline = |
1708 | ccdc_dev->hw_ops.get_line_length(); | |
1709 | vpfe_dev->fmt.fmt.pix.sizeimage = | |
1710 | vpfe_dev->fmt.fmt.pix.bytesperline * | |
1711 | vpfe_dev->fmt.fmt.pix.height; | |
8b6faacd | 1712 | vpfe_dev->crop = rect; |
7da8a6cb MK |
1713 | unlock_out: |
1714 | mutex_unlock(&vpfe_dev->lock); | |
1715 | return ret; | |
1716 | } | |
1717 | ||
1718 | ||
1719 | static long vpfe_param_handler(struct file *file, void *priv, | |
99cd47bc | 1720 | bool valid_prio, int cmd, void *param) |
7da8a6cb MK |
1721 | { |
1722 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1723 | int ret = 0; | |
1724 | ||
6a4f0623 | 1725 | v4l2_dbg(2, debug, &vpfe_dev->v4l2_dev, "vpfe_param_handler\n"); |
7da8a6cb MK |
1726 | |
1727 | if (vpfe_dev->started) { | |
1728 | /* only allowed if streaming is not started */ | |
6a4f0623 MK |
1729 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, |
1730 | "device already started\n"); | |
7da8a6cb MK |
1731 | return -EBUSY; |
1732 | } | |
1733 | ||
1734 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1735 | if (ret) | |
1736 | return ret; | |
1737 | ||
1738 | switch (cmd) { | |
1739 | case VPFE_CMD_S_CCDC_RAW_PARAMS: | |
1740 | v4l2_warn(&vpfe_dev->v4l2_dev, | |
1741 | "VPFE_CMD_S_CCDC_RAW_PARAMS: experimental ioctl\n"); | |
6a4f0623 MK |
1742 | if (ccdc_dev->hw_ops.set_params) { |
1743 | ret = ccdc_dev->hw_ops.set_params(param); | |
1744 | if (ret) { | |
1745 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1746 | "Error setting parameters in CCDC\n"); | |
1747 | goto unlock_out; | |
1748 | } | |
9a888ba2 PST |
1749 | ret = vpfe_get_ccdc_image_format(vpfe_dev, |
1750 | &vpfe_dev->fmt); | |
1751 | if (ret < 0) { | |
6a4f0623 MK |
1752 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, |
1753 | "Invalid image format at CCDC\n"); | |
1754 | goto unlock_out; | |
1755 | } | |
1756 | } else { | |
1757 | ret = -EINVAL; | |
1758 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1759 | "VPFE_CMD_S_CCDC_RAW_PARAMS not supported\n"); | |
7da8a6cb MK |
1760 | } |
1761 | break; | |
1762 | default: | |
d1c754a9 | 1763 | ret = -ENOTTY; |
7da8a6cb MK |
1764 | } |
1765 | unlock_out: | |
1766 | mutex_unlock(&vpfe_dev->lock); | |
1767 | return ret; | |
1768 | } | |
1769 | ||
1770 | ||
1771 | /* vpfe capture ioctl operations */ | |
1772 | static const struct v4l2_ioctl_ops vpfe_ioctl_ops = { | |
1773 | .vidioc_querycap = vpfe_querycap, | |
1774 | .vidioc_g_fmt_vid_cap = vpfe_g_fmt_vid_cap, | |
1775 | .vidioc_enum_fmt_vid_cap = vpfe_enum_fmt_vid_cap, | |
1776 | .vidioc_s_fmt_vid_cap = vpfe_s_fmt_vid_cap, | |
1777 | .vidioc_try_fmt_vid_cap = vpfe_try_fmt_vid_cap, | |
1778 | .vidioc_enum_input = vpfe_enum_input, | |
1779 | .vidioc_g_input = vpfe_g_input, | |
1780 | .vidioc_s_input = vpfe_s_input, | |
1781 | .vidioc_querystd = vpfe_querystd, | |
1782 | .vidioc_s_std = vpfe_s_std, | |
1783 | .vidioc_g_std = vpfe_g_std, | |
d73bfc5f VH |
1784 | .vidioc_queryctrl = vpfe_queryctrl, |
1785 | .vidioc_g_ctrl = vpfe_g_ctrl, | |
1786 | .vidioc_s_ctrl = vpfe_s_ctrl, | |
7da8a6cb MK |
1787 | .vidioc_reqbufs = vpfe_reqbufs, |
1788 | .vidioc_querybuf = vpfe_querybuf, | |
1789 | .vidioc_qbuf = vpfe_qbuf, | |
1790 | .vidioc_dqbuf = vpfe_dqbuf, | |
1791 | .vidioc_streamon = vpfe_streamon, | |
1792 | .vidioc_streamoff = vpfe_streamoff, | |
1793 | .vidioc_cropcap = vpfe_cropcap, | |
1794 | .vidioc_g_crop = vpfe_g_crop, | |
1795 | .vidioc_s_crop = vpfe_s_crop, | |
1796 | .vidioc_default = vpfe_param_handler, | |
1797 | }; | |
1798 | ||
1799 | static struct vpfe_device *vpfe_initialize(void) | |
1800 | { | |
1801 | struct vpfe_device *vpfe_dev; | |
1802 | ||
1803 | /* Default number of buffers should be 3 */ | |
1804 | if ((numbuffers > 0) && | |
1805 | (numbuffers < config_params.min_numbuffers)) | |
1806 | numbuffers = config_params.min_numbuffers; | |
1807 | ||
1808 | /* | |
1809 | * Set buffer size to min buffers size if invalid buffer size is | |
1810 | * given | |
1811 | */ | |
1812 | if (bufsize < config_params.min_bufsize) | |
1813 | bufsize = config_params.min_bufsize; | |
1814 | ||
1815 | config_params.numbuffers = numbuffers; | |
1816 | ||
1817 | if (numbuffers) | |
1818 | config_params.device_bufsize = bufsize; | |
1819 | ||
1820 | /* Allocate memory for device objects */ | |
1821 | vpfe_dev = kzalloc(sizeof(*vpfe_dev), GFP_KERNEL); | |
1822 | ||
1823 | return vpfe_dev; | |
1824 | } | |
1825 | ||
7da8a6cb MK |
1826 | /* |
1827 | * vpfe_probe : This function creates device entries by register | |
1828 | * itself to the V4L2 driver and initializes fields of each | |
1829 | * device objects | |
1830 | */ | |
4c62e976 | 1831 | static int vpfe_probe(struct platform_device *pdev) |
7da8a6cb MK |
1832 | { |
1833 | struct vpfe_subdev_info *sdinfo; | |
1834 | struct vpfe_config *vpfe_cfg; | |
1835 | struct resource *res1; | |
1836 | struct vpfe_device *vpfe_dev; | |
1837 | struct i2c_adapter *i2c_adap; | |
1838 | struct video_device *vfd; | |
1839 | int ret = -ENOMEM, i, j; | |
1840 | int num_subdevs = 0; | |
1841 | ||
1842 | /* Get the pointer to the device object */ | |
1843 | vpfe_dev = vpfe_initialize(); | |
1844 | ||
1845 | if (!vpfe_dev) { | |
1846 | v4l2_err(pdev->dev.driver, | |
1847 | "Failed to allocate memory for vpfe_dev\n"); | |
1848 | return ret; | |
1849 | } | |
1850 | ||
1851 | vpfe_dev->pdev = &pdev->dev; | |
1852 | ||
1853 | if (NULL == pdev->dev.platform_data) { | |
1854 | v4l2_err(pdev->dev.driver, "Unable to get vpfe config\n"); | |
51444ea3 | 1855 | ret = -ENODEV; |
7da8a6cb MK |
1856 | goto probe_free_dev_mem; |
1857 | } | |
1858 | ||
1859 | vpfe_cfg = pdev->dev.platform_data; | |
1860 | vpfe_dev->cfg = vpfe_cfg; | |
1861 | if (NULL == vpfe_cfg->ccdc || | |
1862 | NULL == vpfe_cfg->card_name || | |
1863 | NULL == vpfe_cfg->sub_devs) { | |
1864 | v4l2_err(pdev->dev.driver, "null ptr in vpfe_cfg\n"); | |
1865 | ret = -ENOENT; | |
1866 | goto probe_free_dev_mem; | |
1867 | } | |
1868 | ||
7da8a6cb MK |
1869 | /* Allocate memory for ccdc configuration */ |
1870 | ccdc_cfg = kmalloc(sizeof(struct ccdc_config), GFP_KERNEL); | |
1871 | if (NULL == ccdc_cfg) { | |
1872 | v4l2_err(pdev->dev.driver, | |
1873 | "Memory allocation failed for ccdc_cfg\n"); | |
ab51bec1 | 1874 | goto probe_free_lock; |
7da8a6cb MK |
1875 | } |
1876 | ||
2b080c5d DC |
1877 | mutex_lock(&ccdc_lock); |
1878 | ||
7da8a6cb MK |
1879 | strncpy(ccdc_cfg->name, vpfe_cfg->ccdc, 32); |
1880 | /* Get VINT0 irq resource */ | |
1881 | res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 0); | |
1882 | if (!res1) { | |
1883 | v4l2_err(pdev->dev.driver, | |
1884 | "Unable to get interrupt for VINT0\n"); | |
51444ea3 MK |
1885 | ret = -ENODEV; |
1886 | goto probe_free_ccdc_cfg_mem; | |
7da8a6cb MK |
1887 | } |
1888 | vpfe_dev->ccdc_irq0 = res1->start; | |
1889 | ||
1890 | /* Get VINT1 irq resource */ | |
51444ea3 | 1891 | res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 1); |
7da8a6cb MK |
1892 | if (!res1) { |
1893 | v4l2_err(pdev->dev.driver, | |
1894 | "Unable to get interrupt for VINT1\n"); | |
51444ea3 MK |
1895 | ret = -ENODEV; |
1896 | goto probe_free_ccdc_cfg_mem; | |
7da8a6cb MK |
1897 | } |
1898 | vpfe_dev->ccdc_irq1 = res1->start; | |
1899 | ||
7da8a6cb MK |
1900 | ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, IRQF_DISABLED, |
1901 | "vpfe_capture0", vpfe_dev); | |
1902 | ||
1903 | if (0 != ret) { | |
1904 | v4l2_err(pdev->dev.driver, "Unable to request interrupt\n"); | |
51444ea3 | 1905 | goto probe_free_ccdc_cfg_mem; |
7da8a6cb MK |
1906 | } |
1907 | ||
1908 | /* Allocate memory for video device */ | |
1909 | vfd = video_device_alloc(); | |
1910 | if (NULL == vfd) { | |
1911 | ret = -ENOMEM; | |
51444ea3 | 1912 | v4l2_err(pdev->dev.driver, "Unable to alloc video device\n"); |
7da8a6cb MK |
1913 | goto probe_out_release_irq; |
1914 | } | |
1915 | ||
1916 | /* Initialize field of video device */ | |
1917 | vfd->release = video_device_release; | |
1918 | vfd->fops = &vpfe_fops; | |
1919 | vfd->ioctl_ops = &vpfe_ioctl_ops; | |
7da8a6cb MK |
1920 | vfd->tvnorms = 0; |
1921 | vfd->current_norm = V4L2_STD_PAL; | |
1922 | vfd->v4l2_dev = &vpfe_dev->v4l2_dev; | |
1923 | snprintf(vfd->name, sizeof(vfd->name), | |
1924 | "%s_V%d.%d.%d", | |
1925 | CAPTURE_DRV_NAME, | |
1926 | (VPFE_CAPTURE_VERSION_CODE >> 16) & 0xff, | |
1927 | (VPFE_CAPTURE_VERSION_CODE >> 8) & 0xff, | |
1928 | (VPFE_CAPTURE_VERSION_CODE) & 0xff); | |
1929 | /* Set video_dev to the video device */ | |
1930 | vpfe_dev->video_dev = vfd; | |
1931 | ||
1932 | ret = v4l2_device_register(&pdev->dev, &vpfe_dev->v4l2_dev); | |
1933 | if (ret) { | |
1934 | v4l2_err(pdev->dev.driver, | |
1935 | "Unable to register v4l2 device.\n"); | |
1936 | goto probe_out_video_release; | |
1937 | } | |
1938 | v4l2_info(&vpfe_dev->v4l2_dev, "v4l2 device registered\n"); | |
1939 | spin_lock_init(&vpfe_dev->irqlock); | |
1940 | spin_lock_init(&vpfe_dev->dma_queue_lock); | |
1941 | mutex_init(&vpfe_dev->lock); | |
1942 | ||
1943 | /* Initialize field of the device objects */ | |
1944 | vpfe_dev->numbuffers = config_params.numbuffers; | |
1945 | ||
1946 | /* Initialize prio member of device object */ | |
1947 | v4l2_prio_init(&vpfe_dev->prio); | |
1948 | /* register video device */ | |
1949 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1950 | "trying to register vpfe device.\n"); | |
1951 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1952 | "video_dev=%x\n", (int)&vpfe_dev->video_dev); | |
1953 | vpfe_dev->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1954 | ret = video_register_device(vpfe_dev->video_dev, | |
1955 | VFL_TYPE_GRABBER, -1); | |
1956 | ||
1957 | if (ret) { | |
1958 | v4l2_err(pdev->dev.driver, | |
1959 | "Unable to register video device.\n"); | |
1960 | goto probe_out_v4l2_unregister; | |
1961 | } | |
1962 | ||
1963 | v4l2_info(&vpfe_dev->v4l2_dev, "video device registered\n"); | |
1964 | /* set the driver data in platform device */ | |
1965 | platform_set_drvdata(pdev, vpfe_dev); | |
1966 | /* set driver private data */ | |
1967 | video_set_drvdata(vpfe_dev->video_dev, vpfe_dev); | |
14cbaafe | 1968 | i2c_adap = i2c_get_adapter(vpfe_cfg->i2c_adapter_id); |
7da8a6cb MK |
1969 | num_subdevs = vpfe_cfg->num_subdevs; |
1970 | vpfe_dev->sd = kmalloc(sizeof(struct v4l2_subdev *) * num_subdevs, | |
1971 | GFP_KERNEL); | |
1972 | if (NULL == vpfe_dev->sd) { | |
1973 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1974 | "unable to allocate memory for subdevice pointers\n"); | |
1975 | ret = -ENOMEM; | |
1976 | goto probe_out_video_unregister; | |
1977 | } | |
1978 | ||
1979 | for (i = 0; i < num_subdevs; i++) { | |
1980 | struct v4l2_input *inps; | |
1981 | ||
1982 | sdinfo = &vpfe_cfg->sub_devs[i]; | |
1983 | ||
1984 | /* Load up the subdevice */ | |
1985 | vpfe_dev->sd[i] = | |
1986 | v4l2_i2c_new_subdev_board(&vpfe_dev->v4l2_dev, | |
1987 | i2c_adap, | |
7da8a6cb MK |
1988 | &sdinfo->board_info, |
1989 | NULL); | |
1990 | if (vpfe_dev->sd[i]) { | |
1991 | v4l2_info(&vpfe_dev->v4l2_dev, | |
1992 | "v4l2 sub device %s registered\n", | |
1993 | sdinfo->name); | |
1994 | vpfe_dev->sd[i]->grp_id = sdinfo->grp_id; | |
1995 | /* update tvnorms from the sub devices */ | |
1996 | for (j = 0; j < sdinfo->num_inputs; j++) { | |
1997 | inps = &sdinfo->inputs[j]; | |
1998 | vfd->tvnorms |= inps->std; | |
1999 | } | |
2000 | } else { | |
2001 | v4l2_info(&vpfe_dev->v4l2_dev, | |
2002 | "v4l2 sub device %s register fails\n", | |
2003 | sdinfo->name); | |
2004 | goto probe_sd_out; | |
2005 | } | |
2006 | } | |
2007 | ||
2008 | /* set first sub device as current one */ | |
2009 | vpfe_dev->current_subdev = &vpfe_cfg->sub_devs[0]; | |
2010 | ||
2011 | /* We have at least one sub device to work with */ | |
2012 | mutex_unlock(&ccdc_lock); | |
2013 | return 0; | |
2014 | ||
2015 | probe_sd_out: | |
2016 | kfree(vpfe_dev->sd); | |
2017 | probe_out_video_unregister: | |
2018 | video_unregister_device(vpfe_dev->video_dev); | |
2019 | probe_out_v4l2_unregister: | |
2020 | v4l2_device_unregister(&vpfe_dev->v4l2_dev); | |
2021 | probe_out_video_release: | |
f0813b4c | 2022 | if (!video_is_registered(vpfe_dev->video_dev)) |
7da8a6cb MK |
2023 | video_device_release(vpfe_dev->video_dev); |
2024 | probe_out_release_irq: | |
2025 | free_irq(vpfe_dev->ccdc_irq0, vpfe_dev); | |
51444ea3 | 2026 | probe_free_ccdc_cfg_mem: |
7da8a6cb | 2027 | kfree(ccdc_cfg); |
ab51bec1 MK |
2028 | probe_free_lock: |
2029 | mutex_unlock(&ccdc_lock); | |
7da8a6cb MK |
2030 | probe_free_dev_mem: |
2031 | kfree(vpfe_dev); | |
2032 | return ret; | |
2033 | } | |
2034 | ||
2035 | /* | |
2036 | * vpfe_remove : It un-register device from V4L2 driver | |
2037 | */ | |
4c62e976 | 2038 | static int vpfe_remove(struct platform_device *pdev) |
7da8a6cb MK |
2039 | { |
2040 | struct vpfe_device *vpfe_dev = platform_get_drvdata(pdev); | |
7da8a6cb MK |
2041 | |
2042 | v4l2_info(pdev->dev.driver, "vpfe_remove\n"); | |
2043 | ||
2044 | free_irq(vpfe_dev->ccdc_irq0, vpfe_dev); | |
2045 | kfree(vpfe_dev->sd); | |
2046 | v4l2_device_unregister(&vpfe_dev->v4l2_dev); | |
2047 | video_unregister_device(vpfe_dev->video_dev); | |
7da8a6cb MK |
2048 | kfree(vpfe_dev); |
2049 | kfree(ccdc_cfg); | |
2050 | return 0; | |
2051 | } | |
2052 | ||
aa2dc903 | 2053 | static int vpfe_suspend(struct device *dev) |
7da8a6cb | 2054 | { |
aa2dc903 | 2055 | return 0; |
7da8a6cb MK |
2056 | } |
2057 | ||
aa2dc903 | 2058 | static int vpfe_resume(struct device *dev) |
7da8a6cb | 2059 | { |
aa2dc903 | 2060 | return 0; |
7da8a6cb MK |
2061 | } |
2062 | ||
47145210 | 2063 | static const struct dev_pm_ops vpfe_dev_pm_ops = { |
7da8a6cb MK |
2064 | .suspend = vpfe_suspend, |
2065 | .resume = vpfe_resume, | |
2066 | }; | |
2067 | ||
a1b3a6ce | 2068 | static struct platform_driver vpfe_driver = { |
7da8a6cb MK |
2069 | .driver = { |
2070 | .name = CAPTURE_DRV_NAME, | |
2071 | .owner = THIS_MODULE, | |
2072 | .pm = &vpfe_dev_pm_ops, | |
2073 | }, | |
2074 | .probe = vpfe_probe, | |
4c62e976 | 2075 | .remove = vpfe_remove, |
7da8a6cb MK |
2076 | }; |
2077 | ||
1d6629b1 | 2078 | module_platform_driver(vpfe_driver); |