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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 | ||
283 | /* | |
284 | * vpfe_get_ccdc_image_format - Get image parameters based on CCDC settings | |
285 | */ | |
286 | static int vpfe_get_ccdc_image_format(struct vpfe_device *vpfe_dev, | |
287 | struct v4l2_format *f) | |
288 | { | |
289 | struct v4l2_rect image_win; | |
290 | enum ccdc_buftype buf_type; | |
291 | enum ccdc_frmfmt frm_fmt; | |
292 | ||
293 | memset(f, 0, sizeof(*f)); | |
294 | f->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
295 | ccdc_dev->hw_ops.get_image_window(&image_win); | |
296 | f->fmt.pix.width = image_win.width; | |
297 | f->fmt.pix.height = image_win.height; | |
298 | f->fmt.pix.bytesperline = ccdc_dev->hw_ops.get_line_length(); | |
299 | f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * | |
300 | f->fmt.pix.height; | |
301 | buf_type = ccdc_dev->hw_ops.get_buftype(); | |
302 | f->fmt.pix.pixelformat = ccdc_dev->hw_ops.get_pixel_format(); | |
303 | frm_fmt = ccdc_dev->hw_ops.get_frame_format(); | |
304 | if (frm_fmt == CCDC_FRMFMT_PROGRESSIVE) | |
305 | f->fmt.pix.field = V4L2_FIELD_NONE; | |
306 | else if (frm_fmt == CCDC_FRMFMT_INTERLACED) { | |
307 | if (buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED) | |
308 | f->fmt.pix.field = V4L2_FIELD_INTERLACED; | |
309 | else if (buf_type == CCDC_BUFTYPE_FLD_SEPARATED) | |
310 | f->fmt.pix.field = V4L2_FIELD_SEQ_TB; | |
311 | else { | |
312 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf_type\n"); | |
313 | return -EINVAL; | |
314 | } | |
315 | } else { | |
316 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid frm_fmt\n"); | |
317 | return -EINVAL; | |
318 | } | |
319 | return 0; | |
320 | } | |
321 | ||
322 | /* | |
323 | * vpfe_config_ccdc_image_format() | |
324 | * For a pix format, configure ccdc to setup the capture | |
325 | */ | |
326 | static int vpfe_config_ccdc_image_format(struct vpfe_device *vpfe_dev) | |
327 | { | |
328 | enum ccdc_frmfmt frm_fmt = CCDC_FRMFMT_INTERLACED; | |
329 | int ret = 0; | |
330 | ||
331 | if (ccdc_dev->hw_ops.set_pixel_format( | |
332 | vpfe_dev->fmt.fmt.pix.pixelformat) < 0) { | |
333 | v4l2_err(&vpfe_dev->v4l2_dev, | |
334 | "couldn't set pix format in ccdc\n"); | |
335 | return -EINVAL; | |
336 | } | |
337 | /* configure the image window */ | |
338 | ccdc_dev->hw_ops.set_image_window(&vpfe_dev->crop); | |
339 | ||
340 | switch (vpfe_dev->fmt.fmt.pix.field) { | |
341 | case V4L2_FIELD_INTERLACED: | |
342 | /* do nothing, since it is default */ | |
343 | ret = ccdc_dev->hw_ops.set_buftype( | |
344 | CCDC_BUFTYPE_FLD_INTERLEAVED); | |
345 | break; | |
346 | case V4L2_FIELD_NONE: | |
347 | frm_fmt = CCDC_FRMFMT_PROGRESSIVE; | |
348 | /* buffer type only applicable for interlaced scan */ | |
349 | break; | |
350 | case V4L2_FIELD_SEQ_TB: | |
351 | ret = ccdc_dev->hw_ops.set_buftype( | |
352 | CCDC_BUFTYPE_FLD_SEPARATED); | |
353 | break; | |
354 | default: | |
355 | return -EINVAL; | |
356 | } | |
357 | ||
358 | /* set the frame format */ | |
359 | if (!ret) | |
360 | ret = ccdc_dev->hw_ops.set_frame_format(frm_fmt); | |
361 | return ret; | |
362 | } | |
363 | /* | |
364 | * vpfe_config_image_format() | |
365 | * For a given standard, this functions sets up the default | |
366 | * pix format & crop values in the vpfe device and ccdc. It first | |
367 | * starts with defaults based values from the standard table. | |
da298c6d | 368 | * It then checks if sub device supports get_fmt and then override the |
7da8a6cb MK |
369 | * values based on that.Sets crop values to match with scan resolution |
370 | * starting at 0,0. It calls vpfe_config_ccdc_image_format() set the | |
371 | * values in ccdc | |
372 | */ | |
373 | static int vpfe_config_image_format(struct vpfe_device *vpfe_dev, | |
314527ac | 374 | v4l2_std_id std_id) |
7da8a6cb MK |
375 | { |
376 | struct vpfe_subdev_info *sdinfo = vpfe_dev->current_subdev; | |
da298c6d HV |
377 | struct v4l2_subdev_format fmt = { |
378 | .which = V4L2_SUBDEV_FORMAT_ACTIVE, | |
379 | }; | |
380 | struct v4l2_mbus_framefmt *mbus_fmt = &fmt.format; | |
d3ca7759 | 381 | struct v4l2_pix_format *pix = &vpfe_dev->fmt.fmt.pix; |
2a0de2c8 | 382 | int i, ret; |
7da8a6cb MK |
383 | |
384 | for (i = 0; i < ARRAY_SIZE(vpfe_standards); i++) { | |
314527ac | 385 | if (vpfe_standards[i].std_id & std_id) { |
7da8a6cb MK |
386 | vpfe_dev->std_info.active_pixels = |
387 | vpfe_standards[i].width; | |
388 | vpfe_dev->std_info.active_lines = | |
389 | vpfe_standards[i].height; | |
390 | vpfe_dev->std_info.frame_format = | |
391 | vpfe_standards[i].frame_format; | |
392 | vpfe_dev->std_index = i; | |
393 | break; | |
394 | } | |
395 | } | |
396 | ||
397 | if (i == ARRAY_SIZE(vpfe_standards)) { | |
398 | v4l2_err(&vpfe_dev->v4l2_dev, "standard not supported\n"); | |
399 | return -EINVAL; | |
400 | } | |
401 | ||
402 | vpfe_dev->crop.top = 0; | |
403 | vpfe_dev->crop.left = 0; | |
404 | vpfe_dev->crop.width = vpfe_dev->std_info.active_pixels; | |
405 | vpfe_dev->crop.height = vpfe_dev->std_info.active_lines; | |
d3ca7759 HV |
406 | pix->width = vpfe_dev->crop.width; |
407 | pix->height = vpfe_dev->crop.height; | |
7da8a6cb MK |
408 | |
409 | /* first field and frame format based on standard frame format */ | |
410 | if (vpfe_dev->std_info.frame_format) { | |
d3ca7759 | 411 | pix->field = V4L2_FIELD_INTERLACED; |
7da8a6cb | 412 | /* assume V4L2_PIX_FMT_UYVY as default */ |
d3ca7759 | 413 | pix->pixelformat = V4L2_PIX_FMT_UYVY; |
da298c6d | 414 | v4l2_fill_mbus_format(mbus_fmt, pix, |
27ffaeb0 | 415 | MEDIA_BUS_FMT_YUYV10_2X10); |
7da8a6cb | 416 | } else { |
d3ca7759 | 417 | pix->field = V4L2_FIELD_NONE; |
7da8a6cb | 418 | /* assume V4L2_PIX_FMT_SBGGR8 */ |
d3ca7759 | 419 | pix->pixelformat = V4L2_PIX_FMT_SBGGR8; |
da298c6d | 420 | v4l2_fill_mbus_format(mbus_fmt, pix, |
27ffaeb0 | 421 | MEDIA_BUS_FMT_SBGGR8_1X8); |
7da8a6cb MK |
422 | } |
423 | ||
da298c6d | 424 | /* if sub device supports get_fmt, override the defaults */ |
7da8a6cb | 425 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, |
da298c6d | 426 | sdinfo->grp_id, pad, get_fmt, NULL, &fmt); |
7da8a6cb MK |
427 | |
428 | if (ret && ret != -ENOIOCTLCMD) { | |
429 | v4l2_err(&vpfe_dev->v4l2_dev, | |
da298c6d | 430 | "error in getting get_fmt from sub device\n"); |
7da8a6cb MK |
431 | return ret; |
432 | } | |
da298c6d | 433 | v4l2_fill_pix_format(pix, mbus_fmt); |
d3ca7759 HV |
434 | pix->bytesperline = pix->width * 2; |
435 | pix->sizeimage = pix->bytesperline * pix->height; | |
7da8a6cb MK |
436 | |
437 | /* Sets the values in CCDC */ | |
438 | ret = vpfe_config_ccdc_image_format(vpfe_dev); | |
439 | if (ret) | |
440 | return ret; | |
441 | ||
442 | /* Update the values of sizeimage and bytesperline */ | |
692f6375 DC |
443 | pix->bytesperline = ccdc_dev->hw_ops.get_line_length(); |
444 | pix->sizeimage = pix->bytesperline * pix->height; | |
445 | ||
446 | return 0; | |
7da8a6cb MK |
447 | } |
448 | ||
449 | static int vpfe_initialize_device(struct vpfe_device *vpfe_dev) | |
450 | { | |
2a0de2c8 | 451 | int ret; |
7da8a6cb MK |
452 | |
453 | /* set first input of current subdevice as the current input */ | |
454 | vpfe_dev->current_input = 0; | |
455 | ||
456 | /* set default standard */ | |
457 | vpfe_dev->std_index = 0; | |
458 | ||
459 | /* Configure the default format information */ | |
460 | ret = vpfe_config_image_format(vpfe_dev, | |
314527ac | 461 | vpfe_standards[vpfe_dev->std_index].std_id); |
7da8a6cb MK |
462 | if (ret) |
463 | return ret; | |
464 | ||
465 | /* now open the ccdc device to initialize it */ | |
466 | mutex_lock(&ccdc_lock); | |
c580f295 | 467 | if (!ccdc_dev) { |
7da8a6cb MK |
468 | v4l2_err(&vpfe_dev->v4l2_dev, "ccdc device not registered\n"); |
469 | ret = -ENODEV; | |
470 | goto unlock; | |
471 | } | |
472 | ||
473 | if (!try_module_get(ccdc_dev->owner)) { | |
474 | v4l2_err(&vpfe_dev->v4l2_dev, "Couldn't lock ccdc module\n"); | |
475 | ret = -ENODEV; | |
476 | goto unlock; | |
477 | } | |
478 | ret = ccdc_dev->hw_ops.open(vpfe_dev->pdev); | |
479 | if (!ret) | |
480 | vpfe_dev->initialized = 1; | |
085b54a2 VH |
481 | |
482 | /* Clear all VPFE/CCDC interrupts */ | |
483 | if (vpfe_dev->cfg->clr_intr) | |
484 | vpfe_dev->cfg->clr_intr(-1); | |
485 | ||
7da8a6cb MK |
486 | unlock: |
487 | mutex_unlock(&ccdc_lock); | |
488 | return ret; | |
489 | } | |
490 | ||
491 | /* | |
492 | * vpfe_open : It creates object of file handle structure and | |
493 | * stores it in private_data member of filepointer | |
494 | */ | |
495 | static int vpfe_open(struct file *file) | |
496 | { | |
497 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
3bdaa382 | 498 | struct video_device *vdev = video_devdata(file); |
7da8a6cb MK |
499 | struct vpfe_fh *fh; |
500 | ||
501 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_open\n"); | |
502 | ||
503 | if (!vpfe_dev->cfg->num_subdevs) { | |
504 | v4l2_err(&vpfe_dev->v4l2_dev, "No decoder registered\n"); | |
505 | return -ENODEV; | |
506 | } | |
507 | ||
508 | /* Allocate memory for the file handle object */ | |
1d3811d3 | 509 | fh = kmalloc(sizeof(*fh), GFP_KERNEL); |
11691f0e | 510 | if (!fh) |
7da8a6cb | 511 | return -ENOMEM; |
11691f0e | 512 | |
7da8a6cb MK |
513 | /* store pointer to fh in private_data member of file */ |
514 | file->private_data = fh; | |
515 | fh->vpfe_dev = vpfe_dev; | |
3bdaa382 | 516 | v4l2_fh_init(&fh->fh, vdev); |
7da8a6cb MK |
517 | mutex_lock(&vpfe_dev->lock); |
518 | /* If decoder is not initialized. initialize it */ | |
519 | if (!vpfe_dev->initialized) { | |
520 | if (vpfe_initialize_device(vpfe_dev)) { | |
521 | mutex_unlock(&vpfe_dev->lock); | |
d39e74fd SV |
522 | v4l2_fh_exit(&fh->fh); |
523 | kfree(fh); | |
7da8a6cb MK |
524 | return -ENODEV; |
525 | } | |
526 | } | |
527 | /* Increment device usrs counter */ | |
528 | vpfe_dev->usrs++; | |
529 | /* Set io_allowed member to false */ | |
530 | fh->io_allowed = 0; | |
3bdaa382 | 531 | v4l2_fh_add(&fh->fh); |
7da8a6cb MK |
532 | mutex_unlock(&vpfe_dev->lock); |
533 | return 0; | |
534 | } | |
535 | ||
536 | static void vpfe_schedule_next_buffer(struct vpfe_device *vpfe_dev) | |
537 | { | |
538 | unsigned long addr; | |
539 | ||
540 | vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next, | |
541 | struct videobuf_buffer, queue); | |
542 | list_del(&vpfe_dev->next_frm->queue); | |
543 | vpfe_dev->next_frm->state = VIDEOBUF_ACTIVE; | |
544 | addr = videobuf_to_dma_contig(vpfe_dev->next_frm); | |
844cc0dc VH |
545 | |
546 | ccdc_dev->hw_ops.setfbaddr(addr); | |
547 | } | |
548 | ||
549 | static void vpfe_schedule_bottom_field(struct vpfe_device *vpfe_dev) | |
550 | { | |
551 | unsigned long addr; | |
552 | ||
553 | addr = videobuf_to_dma_contig(vpfe_dev->cur_frm); | |
554 | addr += vpfe_dev->field_off; | |
7da8a6cb MK |
555 | ccdc_dev->hw_ops.setfbaddr(addr); |
556 | } | |
557 | ||
558 | static void vpfe_process_buffer_complete(struct vpfe_device *vpfe_dev) | |
559 | { | |
8e6057b5 | 560 | v4l2_get_timestamp(&vpfe_dev->cur_frm->ts); |
7da8a6cb MK |
561 | vpfe_dev->cur_frm->state = VIDEOBUF_DONE; |
562 | vpfe_dev->cur_frm->size = vpfe_dev->fmt.fmt.pix.sizeimage; | |
563 | wake_up_interruptible(&vpfe_dev->cur_frm->done); | |
564 | vpfe_dev->cur_frm = vpfe_dev->next_frm; | |
565 | } | |
566 | ||
567 | /* ISR for VINT0*/ | |
568 | static irqreturn_t vpfe_isr(int irq, void *dev_id) | |
569 | { | |
570 | struct vpfe_device *vpfe_dev = dev_id; | |
571 | enum v4l2_field field; | |
7da8a6cb MK |
572 | int fid; |
573 | ||
574 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nStarting vpfe_isr...\n"); | |
575 | field = vpfe_dev->fmt.fmt.pix.field; | |
576 | ||
577 | /* if streaming not started, don't do anything */ | |
578 | if (!vpfe_dev->started) | |
085b54a2 | 579 | goto clear_intr; |
7da8a6cb MK |
580 | |
581 | /* only for 6446 this will be applicable */ | |
c580f295 | 582 | if (ccdc_dev->hw_ops.reset) |
7da8a6cb MK |
583 | ccdc_dev->hw_ops.reset(); |
584 | ||
585 | if (field == V4L2_FIELD_NONE) { | |
586 | /* handle progressive frame capture */ | |
587 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
588 | "frame format is progressive...\n"); | |
589 | if (vpfe_dev->cur_frm != vpfe_dev->next_frm) | |
590 | vpfe_process_buffer_complete(vpfe_dev); | |
085b54a2 | 591 | goto clear_intr; |
7da8a6cb MK |
592 | } |
593 | ||
594 | /* interlaced or TB capture check which field we are in hardware */ | |
595 | fid = ccdc_dev->hw_ops.getfid(); | |
596 | ||
597 | /* switch the software maintained field id */ | |
598 | vpfe_dev->field_id ^= 1; | |
599 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "field id = %x:%x.\n", | |
600 | fid, vpfe_dev->field_id); | |
601 | if (fid == vpfe_dev->field_id) { | |
602 | /* we are in-sync here,continue */ | |
603 | if (fid == 0) { | |
604 | /* | |
605 | * One frame is just being captured. If the next frame | |
606 | * is available, release the current frame and move on | |
607 | */ | |
608 | if (vpfe_dev->cur_frm != vpfe_dev->next_frm) | |
609 | vpfe_process_buffer_complete(vpfe_dev); | |
610 | /* | |
611 | * based on whether the two fields are stored | |
612 | * interleavely or separately in memory, reconfigure | |
613 | * the CCDC memory address | |
614 | */ | |
b8990656 | 615 | if (field == V4L2_FIELD_SEQ_TB) |
844cc0dc | 616 | vpfe_schedule_bottom_field(vpfe_dev); |
085b54a2 | 617 | goto clear_intr; |
7da8a6cb MK |
618 | } |
619 | /* | |
620 | * if one field is just being captured configure | |
621 | * the next frame get the next frame from the empty | |
622 | * queue if no frame is available hold on to the | |
623 | * current buffer | |
624 | */ | |
625 | spin_lock(&vpfe_dev->dma_queue_lock); | |
626 | if (!list_empty(&vpfe_dev->dma_queue) && | |
627 | vpfe_dev->cur_frm == vpfe_dev->next_frm) | |
628 | vpfe_schedule_next_buffer(vpfe_dev); | |
629 | spin_unlock(&vpfe_dev->dma_queue_lock); | |
630 | } else if (fid == 0) { | |
631 | /* | |
632 | * out of sync. Recover from any hardware out-of-sync. | |
633 | * May loose one frame | |
634 | */ | |
635 | vpfe_dev->field_id = fid; | |
636 | } | |
085b54a2 VH |
637 | clear_intr: |
638 | if (vpfe_dev->cfg->clr_intr) | |
639 | vpfe_dev->cfg->clr_intr(irq); | |
640 | ||
7da8a6cb MK |
641 | return IRQ_HANDLED; |
642 | } | |
643 | ||
644 | /* vdint1_isr - isr handler for VINT1 interrupt */ | |
645 | static irqreturn_t vdint1_isr(int irq, void *dev_id) | |
646 | { | |
647 | struct vpfe_device *vpfe_dev = dev_id; | |
648 | ||
649 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nInside vdint1_isr...\n"); | |
650 | ||
651 | /* if streaming not started, don't do anything */ | |
085b54a2 VH |
652 | if (!vpfe_dev->started) { |
653 | if (vpfe_dev->cfg->clr_intr) | |
654 | vpfe_dev->cfg->clr_intr(irq); | |
7da8a6cb | 655 | return IRQ_HANDLED; |
085b54a2 | 656 | } |
7da8a6cb MK |
657 | |
658 | spin_lock(&vpfe_dev->dma_queue_lock); | |
659 | if ((vpfe_dev->fmt.fmt.pix.field == V4L2_FIELD_NONE) && | |
660 | !list_empty(&vpfe_dev->dma_queue) && | |
661 | vpfe_dev->cur_frm == vpfe_dev->next_frm) | |
662 | vpfe_schedule_next_buffer(vpfe_dev); | |
663 | spin_unlock(&vpfe_dev->dma_queue_lock); | |
085b54a2 VH |
664 | |
665 | if (vpfe_dev->cfg->clr_intr) | |
666 | vpfe_dev->cfg->clr_intr(irq); | |
667 | ||
7da8a6cb MK |
668 | return IRQ_HANDLED; |
669 | } | |
670 | ||
671 | static void vpfe_detach_irq(struct vpfe_device *vpfe_dev) | |
672 | { | |
673 | enum ccdc_frmfmt frame_format; | |
674 | ||
675 | frame_format = ccdc_dev->hw_ops.get_frame_format(); | |
676 | if (frame_format == CCDC_FRMFMT_PROGRESSIVE) | |
1ead696b | 677 | free_irq(vpfe_dev->ccdc_irq1, vpfe_dev); |
7da8a6cb MK |
678 | } |
679 | ||
680 | static int vpfe_attach_irq(struct vpfe_device *vpfe_dev) | |
681 | { | |
682 | enum ccdc_frmfmt frame_format; | |
683 | ||
684 | frame_format = ccdc_dev->hw_ops.get_frame_format(); | |
685 | if (frame_format == CCDC_FRMFMT_PROGRESSIVE) { | |
686 | return request_irq(vpfe_dev->ccdc_irq1, vdint1_isr, | |
d8c279a0 | 687 | 0, "vpfe_capture1", |
7da8a6cb MK |
688 | vpfe_dev); |
689 | } | |
690 | return 0; | |
691 | } | |
692 | ||
693 | /* vpfe_stop_ccdc_capture: stop streaming in ccdc/isif */ | |
694 | static void vpfe_stop_ccdc_capture(struct vpfe_device *vpfe_dev) | |
695 | { | |
696 | vpfe_dev->started = 0; | |
697 | ccdc_dev->hw_ops.enable(0); | |
698 | if (ccdc_dev->hw_ops.enable_out_to_sdram) | |
699 | ccdc_dev->hw_ops.enable_out_to_sdram(0); | |
700 | } | |
701 | ||
702 | /* | |
703 | * vpfe_release : This function deletes buffer queue, frees the | |
704 | * buffers and the vpfe file handle | |
705 | */ | |
706 | static int vpfe_release(struct file *file) | |
707 | { | |
708 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
709 | struct vpfe_fh *fh = file->private_data; | |
710 | struct vpfe_subdev_info *sdinfo; | |
711 | int ret; | |
712 | ||
713 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_release\n"); | |
714 | ||
715 | /* Get the device lock */ | |
716 | mutex_lock(&vpfe_dev->lock); | |
717 | /* if this instance is doing IO */ | |
718 | if (fh->io_allowed) { | |
719 | if (vpfe_dev->started) { | |
720 | sdinfo = vpfe_dev->current_subdev; | |
721 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, | |
722 | sdinfo->grp_id, | |
723 | video, s_stream, 0); | |
724 | if (ret && (ret != -ENOIOCTLCMD)) | |
725 | v4l2_err(&vpfe_dev->v4l2_dev, | |
726 | "stream off failed in subdev\n"); | |
727 | vpfe_stop_ccdc_capture(vpfe_dev); | |
728 | vpfe_detach_irq(vpfe_dev); | |
729 | videobuf_streamoff(&vpfe_dev->buffer_queue); | |
730 | } | |
731 | vpfe_dev->io_usrs = 0; | |
732 | vpfe_dev->numbuffers = config_params.numbuffers; | |
c1d1e40b LP |
733 | videobuf_stop(&vpfe_dev->buffer_queue); |
734 | videobuf_mmap_free(&vpfe_dev->buffer_queue); | |
7da8a6cb MK |
735 | } |
736 | ||
737 | /* Decrement device usrs counter */ | |
738 | vpfe_dev->usrs--; | |
3bdaa382 LP |
739 | v4l2_fh_del(&fh->fh); |
740 | v4l2_fh_exit(&fh->fh); | |
7da8a6cb MK |
741 | /* If this is the last file handle */ |
742 | if (!vpfe_dev->usrs) { | |
743 | vpfe_dev->initialized = 0; | |
744 | if (ccdc_dev->hw_ops.close) | |
745 | ccdc_dev->hw_ops.close(vpfe_dev->pdev); | |
746 | module_put(ccdc_dev->owner); | |
747 | } | |
748 | mutex_unlock(&vpfe_dev->lock); | |
749 | file->private_data = NULL; | |
750 | /* Free memory allocated to file handle object */ | |
751 | kfree(fh); | |
752 | return 0; | |
753 | } | |
754 | ||
755 | /* | |
756 | * vpfe_mmap : It is used to map kernel space buffers | |
757 | * into user spaces | |
758 | */ | |
759 | static int vpfe_mmap(struct file *file, struct vm_area_struct *vma) | |
760 | { | |
761 | /* Get the device object and file handle object */ | |
762 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
763 | ||
764 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_mmap\n"); | |
765 | ||
766 | return videobuf_mmap_mapper(&vpfe_dev->buffer_queue, vma); | |
767 | } | |
768 | ||
769 | /* | |
770 | * vpfe_poll: It is used for select/poll system call | |
771 | */ | |
772 | static unsigned int vpfe_poll(struct file *file, poll_table *wait) | |
773 | { | |
774 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
775 | ||
776 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_poll\n"); | |
777 | ||
778 | if (vpfe_dev->started) | |
779 | return videobuf_poll_stream(file, | |
780 | &vpfe_dev->buffer_queue, wait); | |
781 | return 0; | |
782 | } | |
783 | ||
784 | /* vpfe capture driver file operations */ | |
785 | static const struct v4l2_file_operations vpfe_fops = { | |
786 | .owner = THIS_MODULE, | |
787 | .open = vpfe_open, | |
788 | .release = vpfe_release, | |
789 | .unlocked_ioctl = video_ioctl2, | |
790 | .mmap = vpfe_mmap, | |
791 | .poll = vpfe_poll | |
792 | }; | |
793 | ||
794 | /* | |
795 | * vpfe_check_format() | |
796 | * This function adjust the input pixel format as per hardware | |
797 | * capabilities and update the same in pixfmt. | |
798 | * Following algorithm used :- | |
799 | * | |
800 | * If given pixformat is not in the vpfe list of pix formats or not | |
801 | * supported by the hardware, current value of pixformat in the device | |
802 | * is used | |
803 | * If given field is not supported, then current field is used. If field | |
804 | * is different from current, then it is matched with that from sub device. | |
805 | * Minimum height is 2 lines for interlaced or tb field and 1 line for | |
806 | * progressive. Maximum height is clamped to active active lines of scan | |
807 | * Minimum width is 32 bytes in memory and width is clamped to active | |
808 | * pixels of scan. | |
809 | * bytesperline is a multiple of 32. | |
810 | */ | |
811 | static const struct vpfe_pixel_format * | |
812 | vpfe_check_format(struct vpfe_device *vpfe_dev, | |
813 | struct v4l2_pix_format *pixfmt) | |
814 | { | |
815 | u32 min_height = 1, min_width = 32, max_width, max_height; | |
816 | const struct vpfe_pixel_format *vpfe_pix_fmt; | |
817 | u32 pix; | |
818 | int temp, found; | |
819 | ||
820 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
c580f295 | 821 | if (!vpfe_pix_fmt) { |
7da8a6cb MK |
822 | /* |
823 | * use current pixel format in the vpfe device. We | |
824 | * will find this pix format in the table | |
825 | */ | |
826 | pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat; | |
827 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
828 | } | |
829 | ||
830 | /* check if hw supports it */ | |
831 | temp = 0; | |
832 | found = 0; | |
833 | while (ccdc_dev->hw_ops.enum_pix(&pix, temp) >= 0) { | |
834 | if (vpfe_pix_fmt->fmtdesc.pixelformat == pix) { | |
835 | found = 1; | |
836 | break; | |
837 | } | |
838 | temp++; | |
839 | } | |
840 | ||
841 | if (!found) { | |
842 | /* use current pixel format */ | |
843 | pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat; | |
844 | /* | |
845 | * Since this is currently used in the vpfe device, we | |
846 | * will find this pix format in the table | |
847 | */ | |
848 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
849 | } | |
850 | ||
851 | /* check what field format is supported */ | |
852 | if (pixfmt->field == V4L2_FIELD_ANY) { | |
853 | /* if field is any, use current value as default */ | |
854 | pixfmt->field = vpfe_dev->fmt.fmt.pix.field; | |
855 | } | |
856 | ||
857 | /* | |
858 | * if field is not same as current field in the vpfe device | |
859 | * try matching the field with the sub device field | |
860 | */ | |
861 | if (vpfe_dev->fmt.fmt.pix.field != pixfmt->field) { | |
862 | /* | |
863 | * If field value is not in the supported fields, use current | |
864 | * field used in the device as default | |
865 | */ | |
866 | switch (pixfmt->field) { | |
867 | case V4L2_FIELD_INTERLACED: | |
868 | case V4L2_FIELD_SEQ_TB: | |
869 | /* if sub device is supporting progressive, use that */ | |
870 | if (!vpfe_dev->std_info.frame_format) | |
871 | pixfmt->field = V4L2_FIELD_NONE; | |
872 | break; | |
873 | case V4L2_FIELD_NONE: | |
874 | if (vpfe_dev->std_info.frame_format) | |
875 | pixfmt->field = V4L2_FIELD_INTERLACED; | |
876 | break; | |
877 | ||
878 | default: | |
879 | /* use current field as default */ | |
880 | pixfmt->field = vpfe_dev->fmt.fmt.pix.field; | |
881 | break; | |
882 | } | |
883 | } | |
884 | ||
885 | /* Now adjust image resolutions supported */ | |
886 | if (pixfmt->field == V4L2_FIELD_INTERLACED || | |
887 | pixfmt->field == V4L2_FIELD_SEQ_TB) | |
888 | min_height = 2; | |
889 | ||
890 | max_width = vpfe_dev->std_info.active_pixels; | |
891 | max_height = vpfe_dev->std_info.active_lines; | |
892 | min_width /= vpfe_pix_fmt->bpp; | |
893 | ||
894 | v4l2_info(&vpfe_dev->v4l2_dev, "width = %d, height = %d, bpp = %d\n", | |
895 | pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp); | |
896 | ||
897 | pixfmt->width = clamp((pixfmt->width), min_width, max_width); | |
898 | pixfmt->height = clamp((pixfmt->height), min_height, max_height); | |
899 | ||
900 | /* If interlaced, adjust height to be a multiple of 2 */ | |
901 | if (pixfmt->field == V4L2_FIELD_INTERLACED) | |
902 | pixfmt->height &= (~1); | |
903 | /* | |
904 | * recalculate bytesperline and sizeimage since width | |
905 | * and height might have changed | |
906 | */ | |
907 | pixfmt->bytesperline = (((pixfmt->width * vpfe_pix_fmt->bpp) + 31) | |
908 | & ~31); | |
909 | if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) | |
910 | pixfmt->sizeimage = | |
911 | pixfmt->bytesperline * pixfmt->height + | |
912 | ((pixfmt->bytesperline * pixfmt->height) >> 1); | |
913 | else | |
914 | pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; | |
915 | ||
ded026e0 | 916 | v4l2_info(&vpfe_dev->v4l2_dev, "adjusted width = %d, height = %d, bpp = %d, bytesperline = %d, sizeimage = %d\n", |
7da8a6cb MK |
917 | pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp, |
918 | pixfmt->bytesperline, pixfmt->sizeimage); | |
919 | return vpfe_pix_fmt; | |
920 | } | |
921 | ||
922 | static int vpfe_querycap(struct file *file, void *priv, | |
923 | struct v4l2_capability *cap) | |
924 | { | |
925 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
926 | ||
927 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querycap\n"); | |
928 | ||
8c17e5e3 HV |
929 | cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; |
930 | cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; | |
7da8a6cb MK |
931 | strlcpy(cap->driver, CAPTURE_DRV_NAME, sizeof(cap->driver)); |
932 | strlcpy(cap->bus_info, "VPFE", sizeof(cap->bus_info)); | |
933 | strlcpy(cap->card, vpfe_dev->cfg->card_name, sizeof(cap->card)); | |
934 | return 0; | |
935 | } | |
936 | ||
937 | static int vpfe_g_fmt_vid_cap(struct file *file, void *priv, | |
938 | struct v4l2_format *fmt) | |
939 | { | |
940 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
7da8a6cb MK |
941 | |
942 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_fmt_vid_cap\n"); | |
943 | /* Fill in the information about format */ | |
944 | *fmt = vpfe_dev->fmt; | |
b80cefb4 | 945 | return 0; |
7da8a6cb MK |
946 | } |
947 | ||
948 | static int vpfe_enum_fmt_vid_cap(struct file *file, void *priv, | |
949 | struct v4l2_fmtdesc *fmt) | |
950 | { | |
951 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
952 | const struct vpfe_pixel_format *pix_fmt; | |
953 | int temp_index; | |
954 | u32 pix; | |
955 | ||
956 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_fmt_vid_cap\n"); | |
957 | ||
958 | if (ccdc_dev->hw_ops.enum_pix(&pix, fmt->index) < 0) | |
959 | return -EINVAL; | |
960 | ||
961 | /* Fill in the information about format */ | |
962 | pix_fmt = vpfe_lookup_pix_format(pix); | |
c580f295 | 963 | if (pix_fmt) { |
7da8a6cb MK |
964 | temp_index = fmt->index; |
965 | *fmt = pix_fmt->fmtdesc; | |
966 | fmt->index = temp_index; | |
967 | return 0; | |
968 | } | |
969 | return -EINVAL; | |
970 | } | |
971 | ||
972 | static int vpfe_s_fmt_vid_cap(struct file *file, void *priv, | |
973 | struct v4l2_format *fmt) | |
974 | { | |
975 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
976 | const struct vpfe_pixel_format *pix_fmts; | |
2a0de2c8 | 977 | int ret; |
7da8a6cb MK |
978 | |
979 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_fmt_vid_cap\n"); | |
980 | ||
981 | /* If streaming is started, return error */ | |
982 | if (vpfe_dev->started) { | |
983 | v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is started\n"); | |
984 | return -EBUSY; | |
985 | } | |
986 | ||
987 | /* Check for valid frame format */ | |
988 | pix_fmts = vpfe_check_format(vpfe_dev, &fmt->fmt.pix); | |
c580f295 | 989 | if (!pix_fmts) |
7da8a6cb MK |
990 | return -EINVAL; |
991 | ||
992 | /* store the pixel format in the device object */ | |
993 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
994 | if (ret) | |
995 | return ret; | |
996 | ||
997 | /* First detach any IRQ if currently attached */ | |
998 | vpfe_detach_irq(vpfe_dev); | |
999 | vpfe_dev->fmt = *fmt; | |
1000 | /* set image capture parameters in the ccdc */ | |
1001 | ret = vpfe_config_ccdc_image_format(vpfe_dev); | |
1002 | mutex_unlock(&vpfe_dev->lock); | |
1003 | return ret; | |
1004 | } | |
1005 | ||
1006 | static int vpfe_try_fmt_vid_cap(struct file *file, void *priv, | |
1007 | struct v4l2_format *f) | |
1008 | { | |
1009 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1010 | const struct vpfe_pixel_format *pix_fmts; | |
1011 | ||
1012 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_try_fmt_vid_cap\n"); | |
1013 | ||
1014 | pix_fmts = vpfe_check_format(vpfe_dev, &f->fmt.pix); | |
c580f295 | 1015 | if (!pix_fmts) |
7da8a6cb MK |
1016 | return -EINVAL; |
1017 | return 0; | |
1018 | } | |
1019 | ||
1020 | /* | |
1021 | * vpfe_get_subdev_input_index - Get subdev index and subdev input index for a | |
1022 | * given app input index | |
1023 | */ | |
1024 | static int vpfe_get_subdev_input_index(struct vpfe_device *vpfe_dev, | |
1025 | int *subdev_index, | |
1026 | int *subdev_input_index, | |
1027 | int app_input_index) | |
1028 | { | |
1029 | struct vpfe_config *cfg = vpfe_dev->cfg; | |
1030 | struct vpfe_subdev_info *sdinfo; | |
1031 | int i, j = 0; | |
1032 | ||
1033 | for (i = 0; i < cfg->num_subdevs; i++) { | |
1034 | sdinfo = &cfg->sub_devs[i]; | |
1035 | if (app_input_index < (j + sdinfo->num_inputs)) { | |
1036 | *subdev_index = i; | |
1037 | *subdev_input_index = app_input_index - j; | |
1038 | return 0; | |
1039 | } | |
1040 | j += sdinfo->num_inputs; | |
1041 | } | |
1042 | return -EINVAL; | |
1043 | } | |
1044 | ||
1045 | /* | |
1046 | * vpfe_get_app_input - Get app input index for a given subdev input index | |
1047 | * driver stores the input index of the current sub device and translate it | |
1048 | * when application request the current input | |
1049 | */ | |
1050 | static int vpfe_get_app_input_index(struct vpfe_device *vpfe_dev, | |
1051 | int *app_input_index) | |
1052 | { | |
1053 | struct vpfe_config *cfg = vpfe_dev->cfg; | |
1054 | struct vpfe_subdev_info *sdinfo; | |
1055 | int i, j = 0; | |
1056 | ||
1057 | for (i = 0; i < cfg->num_subdevs; i++) { | |
1058 | sdinfo = &cfg->sub_devs[i]; | |
1059 | if (!strcmp(sdinfo->name, vpfe_dev->current_subdev->name)) { | |
1060 | if (vpfe_dev->current_input >= sdinfo->num_inputs) | |
1061 | return -1; | |
1062 | *app_input_index = j + vpfe_dev->current_input; | |
1063 | return 0; | |
1064 | } | |
1065 | j += sdinfo->num_inputs; | |
1066 | } | |
1067 | return -EINVAL; | |
1068 | } | |
1069 | ||
1070 | static int vpfe_enum_input(struct file *file, void *priv, | |
1071 | struct v4l2_input *inp) | |
1072 | { | |
1073 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1074 | struct vpfe_subdev_info *sdinfo; | |
1075 | int subdev, index ; | |
1076 | ||
1077 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_input\n"); | |
1078 | ||
1079 | if (vpfe_get_subdev_input_index(vpfe_dev, | |
1080 | &subdev, | |
1081 | &index, | |
1082 | inp->index) < 0) { | |
ded026e0 | 1083 | v4l2_err(&vpfe_dev->v4l2_dev, "input information not found for the subdev\n"); |
7da8a6cb MK |
1084 | return -EINVAL; |
1085 | } | |
1086 | sdinfo = &vpfe_dev->cfg->sub_devs[subdev]; | |
e91b6006 | 1087 | *inp = sdinfo->inputs[index]; |
7da8a6cb MK |
1088 | return 0; |
1089 | } | |
1090 | ||
1091 | static int vpfe_g_input(struct file *file, void *priv, unsigned int *index) | |
1092 | { | |
1093 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1094 | ||
1095 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_input\n"); | |
1096 | ||
1097 | return vpfe_get_app_input_index(vpfe_dev, index); | |
1098 | } | |
1099 | ||
1100 | ||
1101 | static int vpfe_s_input(struct file *file, void *priv, unsigned int index) | |
1102 | { | |
1103 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
6f55dbae | 1104 | struct v4l2_subdev *sd; |
7da8a6cb MK |
1105 | struct vpfe_subdev_info *sdinfo; |
1106 | int subdev_index, inp_index; | |
1107 | struct vpfe_route *route; | |
19d4695a | 1108 | u32 input, output; |
2a0de2c8 | 1109 | int ret; |
7da8a6cb MK |
1110 | |
1111 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_input\n"); | |
1112 | ||
1113 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1114 | if (ret) | |
1115 | return ret; | |
1116 | ||
1117 | /* | |
1118 | * If streaming is started return device busy | |
1119 | * error | |
1120 | */ | |
1121 | if (vpfe_dev->started) { | |
1122 | v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is on\n"); | |
1123 | ret = -EBUSY; | |
1124 | goto unlock_out; | |
1125 | } | |
9a888ba2 PST |
1126 | ret = vpfe_get_subdev_input_index(vpfe_dev, |
1127 | &subdev_index, | |
1128 | &inp_index, | |
1129 | index); | |
1130 | if (ret < 0) { | |
7da8a6cb MK |
1131 | v4l2_err(&vpfe_dev->v4l2_dev, "invalid input index\n"); |
1132 | goto unlock_out; | |
1133 | } | |
1134 | ||
1135 | sdinfo = &vpfe_dev->cfg->sub_devs[subdev_index]; | |
6f55dbae | 1136 | sd = vpfe_dev->sd[subdev_index]; |
7da8a6cb MK |
1137 | route = &sdinfo->routes[inp_index]; |
1138 | if (route && sdinfo->can_route) { | |
1139 | input = route->input; | |
1140 | output = route->output; | |
19d4695a ME |
1141 | } else { |
1142 | input = 0; | |
1143 | output = 0; | |
7da8a6cb MK |
1144 | } |
1145 | ||
6f55dbae HV |
1146 | if (sd) |
1147 | ret = v4l2_subdev_call(sd, video, s_routing, input, output, 0); | |
7da8a6cb MK |
1148 | |
1149 | if (ret) { | |
1150 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1151 | "vpfe_doioctl:error in setting input in decoder\n"); | |
1152 | ret = -EINVAL; | |
1153 | goto unlock_out; | |
1154 | } | |
1155 | vpfe_dev->current_subdev = sdinfo; | |
6f55dbae HV |
1156 | if (sd) |
1157 | vpfe_dev->v4l2_dev.ctrl_handler = sd->ctrl_handler; | |
7da8a6cb MK |
1158 | vpfe_dev->current_input = index; |
1159 | vpfe_dev->std_index = 0; | |
1160 | ||
1161 | /* set the bus/interface parameter for the sub device in ccdc */ | |
1162 | ret = ccdc_dev->hw_ops.set_hw_if_params(&sdinfo->ccdc_if_params); | |
1163 | if (ret) | |
1164 | goto unlock_out; | |
1165 | ||
1166 | /* set the default image parameters in the device */ | |
1167 | ret = vpfe_config_image_format(vpfe_dev, | |
314527ac | 1168 | vpfe_standards[vpfe_dev->std_index].std_id); |
7da8a6cb MK |
1169 | unlock_out: |
1170 | mutex_unlock(&vpfe_dev->lock); | |
1171 | return ret; | |
1172 | } | |
1173 | ||
1174 | static int vpfe_querystd(struct file *file, void *priv, v4l2_std_id *std_id) | |
1175 | { | |
1176 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1177 | struct vpfe_subdev_info *sdinfo; | |
2a0de2c8 | 1178 | int ret; |
7da8a6cb MK |
1179 | |
1180 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querystd\n"); | |
1181 | ||
1182 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1183 | sdinfo = vpfe_dev->current_subdev; | |
1184 | if (ret) | |
1185 | return ret; | |
1186 | /* Call querystd function of decoder device */ | |
1187 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1188 | video, querystd, std_id); | |
1189 | mutex_unlock(&vpfe_dev->lock); | |
1190 | return ret; | |
1191 | } | |
1192 | ||
314527ac | 1193 | static int vpfe_s_std(struct file *file, void *priv, v4l2_std_id std_id) |
7da8a6cb MK |
1194 | { |
1195 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1196 | struct vpfe_subdev_info *sdinfo; | |
2a0de2c8 | 1197 | int ret; |
7da8a6cb MK |
1198 | |
1199 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_std\n"); | |
1200 | ||
1201 | /* Call decoder driver function to set the standard */ | |
1202 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1203 | if (ret) | |
1204 | return ret; | |
1205 | ||
1206 | sdinfo = vpfe_dev->current_subdev; | |
1207 | /* If streaming is started, return device busy error */ | |
1208 | if (vpfe_dev->started) { | |
1209 | v4l2_err(&vpfe_dev->v4l2_dev, "streaming is started\n"); | |
1210 | ret = -EBUSY; | |
1211 | goto unlock_out; | |
1212 | } | |
1213 | ||
1214 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
8774bed9 | 1215 | video, s_std, std_id); |
7da8a6cb MK |
1216 | if (ret < 0) { |
1217 | v4l2_err(&vpfe_dev->v4l2_dev, "Failed to set standard\n"); | |
1218 | goto unlock_out; | |
1219 | } | |
1220 | ret = vpfe_config_image_format(vpfe_dev, std_id); | |
1221 | ||
1222 | unlock_out: | |
1223 | mutex_unlock(&vpfe_dev->lock); | |
1224 | return ret; | |
1225 | } | |
1226 | ||
1227 | static int vpfe_g_std(struct file *file, void *priv, v4l2_std_id *std_id) | |
1228 | { | |
1229 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1230 | ||
1231 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_std\n"); | |
1232 | ||
1233 | *std_id = vpfe_standards[vpfe_dev->std_index].std_id; | |
1234 | return 0; | |
1235 | } | |
1236 | /* | |
1237 | * Videobuf operations | |
1238 | */ | |
1239 | static int vpfe_videobuf_setup(struct videobuf_queue *vq, | |
1240 | unsigned int *count, | |
1241 | unsigned int *size) | |
1242 | { | |
1243 | struct vpfe_fh *fh = vq->priv_data; | |
1244 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1245 | ||
1246 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_setup\n"); | |
844cc0dc VH |
1247 | *size = vpfe_dev->fmt.fmt.pix.sizeimage; |
1248 | if (vpfe_dev->memory == V4L2_MEMORY_MMAP && | |
1249 | vpfe_dev->fmt.fmt.pix.sizeimage > config_params.device_bufsize) | |
1250 | *size = config_params.device_bufsize; | |
7da8a6cb MK |
1251 | |
1252 | if (*count < config_params.min_numbuffers) | |
1253 | *count = config_params.min_numbuffers; | |
1254 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1255 | "count=%d, size=%d\n", *count, *size); | |
1256 | return 0; | |
1257 | } | |
1258 | ||
1259 | static int vpfe_videobuf_prepare(struct videobuf_queue *vq, | |
1260 | struct videobuf_buffer *vb, | |
1261 | enum v4l2_field field) | |
1262 | { | |
1263 | struct vpfe_fh *fh = vq->priv_data; | |
1264 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
844cc0dc VH |
1265 | unsigned long addr; |
1266 | int ret; | |
7da8a6cb MK |
1267 | |
1268 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_prepare\n"); | |
1269 | ||
1270 | /* If buffer is not initialized, initialize it */ | |
1271 | if (VIDEOBUF_NEEDS_INIT == vb->state) { | |
1272 | vb->width = vpfe_dev->fmt.fmt.pix.width; | |
1273 | vb->height = vpfe_dev->fmt.fmt.pix.height; | |
1274 | vb->size = vpfe_dev->fmt.fmt.pix.sizeimage; | |
1275 | vb->field = field; | |
844cc0dc | 1276 | |
b1dc614a | 1277 | ret = videobuf_iolock(vq, vb, NULL); |
844cc0dc VH |
1278 | if (ret < 0) |
1279 | return ret; | |
1280 | ||
1281 | addr = videobuf_to_dma_contig(vb); | |
1282 | /* Make sure user addresses are aligned to 32 bytes */ | |
1283 | if (!ALIGN(addr, 32)) | |
1284 | return -EINVAL; | |
1285 | ||
1286 | vb->state = VIDEOBUF_PREPARED; | |
7da8a6cb | 1287 | } |
7da8a6cb MK |
1288 | return 0; |
1289 | } | |
1290 | ||
1291 | static void vpfe_videobuf_queue(struct videobuf_queue *vq, | |
1292 | struct videobuf_buffer *vb) | |
1293 | { | |
1294 | /* Get the file handle object and device object */ | |
1295 | struct vpfe_fh *fh = vq->priv_data; | |
1296 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1297 | unsigned long flags; | |
1298 | ||
1299 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_queue\n"); | |
1300 | ||
1301 | /* add the buffer to the DMA queue */ | |
1302 | spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags); | |
1303 | list_add_tail(&vb->queue, &vpfe_dev->dma_queue); | |
1304 | spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags); | |
1305 | ||
1306 | /* Change state of the buffer */ | |
1307 | vb->state = VIDEOBUF_QUEUED; | |
1308 | } | |
1309 | ||
1310 | static void vpfe_videobuf_release(struct videobuf_queue *vq, | |
1311 | struct videobuf_buffer *vb) | |
1312 | { | |
1313 | struct vpfe_fh *fh = vq->priv_data; | |
1314 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1315 | unsigned long flags; | |
1316 | ||
1317 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_videobuf_release\n"); | |
1318 | ||
1319 | /* | |
1320 | * We need to flush the buffer from the dma queue since | |
1321 | * they are de-allocated | |
1322 | */ | |
1323 | spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags); | |
1324 | INIT_LIST_HEAD(&vpfe_dev->dma_queue); | |
1325 | spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags); | |
1326 | videobuf_dma_contig_free(vq, vb); | |
1327 | vb->state = VIDEOBUF_NEEDS_INIT; | |
1328 | } | |
1329 | ||
1330 | static struct videobuf_queue_ops vpfe_videobuf_qops = { | |
1331 | .buf_setup = vpfe_videobuf_setup, | |
1332 | .buf_prepare = vpfe_videobuf_prepare, | |
1333 | .buf_queue = vpfe_videobuf_queue, | |
1334 | .buf_release = vpfe_videobuf_release, | |
1335 | }; | |
1336 | ||
1337 | /* | |
1338 | * vpfe_reqbufs. currently support REQBUF only once opening | |
1339 | * the device. | |
1340 | */ | |
1341 | static int vpfe_reqbufs(struct file *file, void *priv, | |
1342 | struct v4l2_requestbuffers *req_buf) | |
1343 | { | |
1344 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1345 | struct vpfe_fh *fh = file->private_data; | |
2a0de2c8 | 1346 | int ret; |
7da8a6cb MK |
1347 | |
1348 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_reqbufs\n"); | |
1349 | ||
1350 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != req_buf->type) { | |
1351 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1352 | return -EINVAL; | |
1353 | } | |
1354 | ||
7da8a6cb MK |
1355 | ret = mutex_lock_interruptible(&vpfe_dev->lock); |
1356 | if (ret) | |
1357 | return ret; | |
1358 | ||
1359 | if (vpfe_dev->io_usrs != 0) { | |
1360 | v4l2_err(&vpfe_dev->v4l2_dev, "Only one IO user allowed\n"); | |
1361 | ret = -EBUSY; | |
1362 | goto unlock_out; | |
1363 | } | |
1364 | ||
1365 | vpfe_dev->memory = req_buf->memory; | |
1366 | videobuf_queue_dma_contig_init(&vpfe_dev->buffer_queue, | |
1367 | &vpfe_videobuf_qops, | |
204e6ea9 | 1368 | vpfe_dev->pdev, |
7da8a6cb MK |
1369 | &vpfe_dev->irqlock, |
1370 | req_buf->type, | |
1371 | vpfe_dev->fmt.fmt.pix.field, | |
1372 | sizeof(struct videobuf_buffer), | |
e3cfd447 | 1373 | fh, NULL); |
7da8a6cb MK |
1374 | |
1375 | fh->io_allowed = 1; | |
1376 | vpfe_dev->io_usrs = 1; | |
1377 | INIT_LIST_HEAD(&vpfe_dev->dma_queue); | |
1378 | ret = videobuf_reqbufs(&vpfe_dev->buffer_queue, req_buf); | |
1379 | unlock_out: | |
1380 | mutex_unlock(&vpfe_dev->lock); | |
1381 | return ret; | |
1382 | } | |
1383 | ||
1384 | static int vpfe_querybuf(struct file *file, void *priv, | |
1385 | struct v4l2_buffer *buf) | |
1386 | { | |
1387 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1388 | ||
1389 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querybuf\n"); | |
1390 | ||
1391 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) { | |
1392 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1393 | return -EINVAL; | |
1394 | } | |
1395 | ||
1396 | if (vpfe_dev->memory != V4L2_MEMORY_MMAP) { | |
1397 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid memory\n"); | |
1398 | return -EINVAL; | |
1399 | } | |
1400 | /* Call videobuf_querybuf to get information */ | |
1401 | return videobuf_querybuf(&vpfe_dev->buffer_queue, buf); | |
1402 | } | |
1403 | ||
1404 | static int vpfe_qbuf(struct file *file, void *priv, | |
1405 | struct v4l2_buffer *p) | |
1406 | { | |
1407 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1408 | struct vpfe_fh *fh = file->private_data; | |
1409 | ||
1410 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_qbuf\n"); | |
1411 | ||
1412 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != p->type) { | |
1413 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1414 | return -EINVAL; | |
1415 | } | |
1416 | ||
1417 | /* | |
1418 | * If this file handle is not allowed to do IO, | |
1419 | * return error | |
1420 | */ | |
1421 | if (!fh->io_allowed) { | |
1422 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1423 | return -EACCES; | |
1424 | } | |
1425 | return videobuf_qbuf(&vpfe_dev->buffer_queue, p); | |
1426 | } | |
1427 | ||
1428 | static int vpfe_dqbuf(struct file *file, void *priv, | |
1429 | struct v4l2_buffer *buf) | |
1430 | { | |
1431 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1432 | ||
1433 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_dqbuf\n"); | |
1434 | ||
1435 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) { | |
1436 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1437 | return -EINVAL; | |
1438 | } | |
1439 | return videobuf_dqbuf(&vpfe_dev->buffer_queue, | |
1440 | buf, file->f_flags & O_NONBLOCK); | |
1441 | } | |
1442 | ||
1443 | /* | |
1444 | * vpfe_calculate_offsets : This function calculates buffers offset | |
1445 | * for top and bottom field | |
1446 | */ | |
1447 | static void vpfe_calculate_offsets(struct vpfe_device *vpfe_dev) | |
1448 | { | |
1449 | struct v4l2_rect image_win; | |
1450 | ||
1451 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_calculate_offsets\n"); | |
1452 | ||
1453 | ccdc_dev->hw_ops.get_image_window(&image_win); | |
1454 | vpfe_dev->field_off = image_win.height * image_win.width; | |
1455 | } | |
1456 | ||
1457 | /* vpfe_start_ccdc_capture: start streaming in ccdc/isif */ | |
1458 | static void vpfe_start_ccdc_capture(struct vpfe_device *vpfe_dev) | |
1459 | { | |
1460 | ccdc_dev->hw_ops.enable(1); | |
1461 | if (ccdc_dev->hw_ops.enable_out_to_sdram) | |
1462 | ccdc_dev->hw_ops.enable_out_to_sdram(1); | |
1463 | vpfe_dev->started = 1; | |
1464 | } | |
1465 | ||
1466 | /* | |
1467 | * vpfe_streamon. Assume the DMA queue is not empty. | |
1468 | * application is expected to call QBUF before calling | |
1469 | * this ioctl. If not, driver returns error | |
1470 | */ | |
1471 | static int vpfe_streamon(struct file *file, void *priv, | |
1472 | enum v4l2_buf_type buf_type) | |
1473 | { | |
1474 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1475 | struct vpfe_fh *fh = file->private_data; | |
1476 | struct vpfe_subdev_info *sdinfo; | |
1477 | unsigned long addr; | |
2a0de2c8 | 1478 | int ret; |
7da8a6cb MK |
1479 | |
1480 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamon\n"); | |
1481 | ||
1482 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) { | |
1483 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1484 | return -EINVAL; | |
1485 | } | |
1486 | ||
1487 | /* If file handle is not allowed IO, return error */ | |
1488 | if (!fh->io_allowed) { | |
1489 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1490 | return -EACCES; | |
1491 | } | |
1492 | ||
1493 | sdinfo = vpfe_dev->current_subdev; | |
1494 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1495 | video, s_stream, 1); | |
1496 | ||
1497 | if (ret && (ret != -ENOIOCTLCMD)) { | |
1498 | v4l2_err(&vpfe_dev->v4l2_dev, "stream on failed in subdev\n"); | |
1499 | return -EINVAL; | |
1500 | } | |
1501 | ||
1502 | /* If buffer queue is empty, return error */ | |
1503 | if (list_empty(&vpfe_dev->buffer_queue.stream)) { | |
1504 | v4l2_err(&vpfe_dev->v4l2_dev, "buffer queue is empty\n"); | |
1505 | return -EIO; | |
1506 | } | |
1507 | ||
1508 | /* Call videobuf_streamon to start streaming * in videobuf */ | |
1509 | ret = videobuf_streamon(&vpfe_dev->buffer_queue); | |
1510 | if (ret) | |
1511 | return ret; | |
1512 | ||
1513 | ||
1514 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1515 | if (ret) | |
1516 | goto streamoff; | |
1517 | /* Get the next frame from the buffer queue */ | |
1518 | vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next, | |
1519 | struct videobuf_buffer, queue); | |
1520 | vpfe_dev->cur_frm = vpfe_dev->next_frm; | |
1521 | /* Remove buffer from the buffer queue */ | |
1522 | list_del(&vpfe_dev->cur_frm->queue); | |
1523 | /* Mark state of the current frame to active */ | |
1524 | vpfe_dev->cur_frm->state = VIDEOBUF_ACTIVE; | |
1525 | /* Initialize field_id and started member */ | |
1526 | vpfe_dev->field_id = 0; | |
1527 | addr = videobuf_to_dma_contig(vpfe_dev->cur_frm); | |
1528 | ||
1529 | /* Calculate field offset */ | |
1530 | vpfe_calculate_offsets(vpfe_dev); | |
1531 | ||
1532 | if (vpfe_attach_irq(vpfe_dev) < 0) { | |
1533 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1534 | "Error in attaching interrupt handle\n"); | |
1535 | ret = -EFAULT; | |
1536 | goto unlock_out; | |
1537 | } | |
1538 | if (ccdc_dev->hw_ops.configure() < 0) { | |
1539 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1540 | "Error in configuring ccdc\n"); | |
1541 | ret = -EINVAL; | |
1542 | goto unlock_out; | |
1543 | } | |
1544 | ccdc_dev->hw_ops.setfbaddr((unsigned long)(addr)); | |
1545 | vpfe_start_ccdc_capture(vpfe_dev); | |
1546 | mutex_unlock(&vpfe_dev->lock); | |
1547 | return ret; | |
1548 | unlock_out: | |
1549 | mutex_unlock(&vpfe_dev->lock); | |
1550 | streamoff: | |
1551 | ret = videobuf_streamoff(&vpfe_dev->buffer_queue); | |
1552 | return ret; | |
1553 | } | |
1554 | ||
1555 | static int vpfe_streamoff(struct file *file, void *priv, | |
1556 | enum v4l2_buf_type buf_type) | |
1557 | { | |
1558 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1559 | struct vpfe_fh *fh = file->private_data; | |
1560 | struct vpfe_subdev_info *sdinfo; | |
2a0de2c8 | 1561 | int ret; |
7da8a6cb MK |
1562 | |
1563 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamoff\n"); | |
1564 | ||
1565 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) { | |
1566 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1567 | return -EINVAL; | |
1568 | } | |
1569 | ||
1570 | /* If io is allowed for this file handle, return error */ | |
1571 | if (!fh->io_allowed) { | |
1572 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1573 | return -EACCES; | |
1574 | } | |
1575 | ||
1576 | /* If streaming is not started, return error */ | |
1577 | if (!vpfe_dev->started) { | |
1578 | v4l2_err(&vpfe_dev->v4l2_dev, "device started\n"); | |
1579 | return -EINVAL; | |
1580 | } | |
1581 | ||
1582 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1583 | if (ret) | |
1584 | return ret; | |
1585 | ||
1586 | vpfe_stop_ccdc_capture(vpfe_dev); | |
1587 | vpfe_detach_irq(vpfe_dev); | |
1588 | ||
1589 | sdinfo = vpfe_dev->current_subdev; | |
1590 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1591 | video, s_stream, 0); | |
1592 | ||
1593 | if (ret && (ret != -ENOIOCTLCMD)) | |
1594 | v4l2_err(&vpfe_dev->v4l2_dev, "stream off failed in subdev\n"); | |
1595 | ret = videobuf_streamoff(&vpfe_dev->buffer_queue); | |
1596 | mutex_unlock(&vpfe_dev->lock); | |
1597 | return ret; | |
1598 | } | |
1599 | ||
1600 | static int vpfe_cropcap(struct file *file, void *priv, | |
1601 | struct v4l2_cropcap *crop) | |
1602 | { | |
1603 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1604 | ||
1605 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_cropcap\n"); | |
1606 | ||
ffc2a6bb | 1607 | if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
7da8a6cb | 1608 | return -EINVAL; |
ffc2a6bb HV |
1609 | /* If std_index is invalid, then just return (== 1:1 aspect) */ |
1610 | if (vpfe_dev->std_index >= ARRAY_SIZE(vpfe_standards)) | |
1611 | return 0; | |
7da8a6cb | 1612 | |
7da8a6cb MK |
1613 | crop->pixelaspect = vpfe_standards[vpfe_dev->std_index].pixelaspect; |
1614 | return 0; | |
1615 | } | |
1616 | ||
ffc2a6bb HV |
1617 | static int vpfe_g_selection(struct file *file, void *priv, |
1618 | struct v4l2_selection *sel) | |
7da8a6cb MK |
1619 | { |
1620 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1621 | ||
ffc2a6bb | 1622 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_selection\n"); |
7da8a6cb | 1623 | |
ffc2a6bb HV |
1624 | if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
1625 | return -EINVAL; | |
1626 | ||
1627 | switch (sel->target) { | |
1628 | case V4L2_SEL_TGT_CROP: | |
1629 | sel->r = vpfe_dev->crop; | |
1630 | break; | |
1631 | case V4L2_SEL_TGT_CROP_DEFAULT: | |
1632 | case V4L2_SEL_TGT_CROP_BOUNDS: | |
1633 | sel->r.width = vpfe_standards[vpfe_dev->std_index].width; | |
1634 | sel->r.height = vpfe_standards[vpfe_dev->std_index].height; | |
1635 | break; | |
1636 | default: | |
1637 | return -EINVAL; | |
1638 | } | |
7da8a6cb MK |
1639 | return 0; |
1640 | } | |
1641 | ||
ffc2a6bb HV |
1642 | static int vpfe_s_selection(struct file *file, void *priv, |
1643 | struct v4l2_selection *sel) | |
7da8a6cb MK |
1644 | { |
1645 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
ffc2a6bb | 1646 | struct v4l2_rect rect = sel->r; |
2a0de2c8 | 1647 | int ret; |
7da8a6cb | 1648 | |
ffc2a6bb HV |
1649 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_selection\n"); |
1650 | ||
1651 | if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1652 | sel->target != V4L2_SEL_TGT_CROP) | |
1653 | return -EINVAL; | |
7da8a6cb MK |
1654 | |
1655 | if (vpfe_dev->started) { | |
1656 | /* make sure streaming is not started */ | |
1657 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1658 | "Cannot change crop when streaming is ON\n"); | |
1659 | return -EBUSY; | |
1660 | } | |
1661 | ||
1662 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1663 | if (ret) | |
1664 | return ret; | |
1665 | ||
8b6faacd | 1666 | if (rect.top < 0 || rect.left < 0) { |
7da8a6cb MK |
1667 | v4l2_err(&vpfe_dev->v4l2_dev, |
1668 | "doesn't support negative values for top & left\n"); | |
1669 | ret = -EINVAL; | |
1670 | goto unlock_out; | |
1671 | } | |
1672 | ||
25985edc | 1673 | /* adjust the width to 16 pixel boundary */ |
8b6faacd | 1674 | rect.width = ((rect.width + 15) & ~0xf); |
7da8a6cb MK |
1675 | |
1676 | /* make sure parameters are valid */ | |
8b6faacd | 1677 | if ((rect.left + rect.width > |
7da8a6cb | 1678 | vpfe_dev->std_info.active_pixels) || |
8b6faacd | 1679 | (rect.top + rect.height > |
7da8a6cb | 1680 | vpfe_dev->std_info.active_lines)) { |
ffc2a6bb | 1681 | v4l2_err(&vpfe_dev->v4l2_dev, "Error in S_SELECTION params\n"); |
7da8a6cb MK |
1682 | ret = -EINVAL; |
1683 | goto unlock_out; | |
1684 | } | |
8b6faacd LP |
1685 | ccdc_dev->hw_ops.set_image_window(&rect); |
1686 | vpfe_dev->fmt.fmt.pix.width = rect.width; | |
1687 | vpfe_dev->fmt.fmt.pix.height = rect.height; | |
7da8a6cb MK |
1688 | vpfe_dev->fmt.fmt.pix.bytesperline = |
1689 | ccdc_dev->hw_ops.get_line_length(); | |
1690 | vpfe_dev->fmt.fmt.pix.sizeimage = | |
1691 | vpfe_dev->fmt.fmt.pix.bytesperline * | |
1692 | vpfe_dev->fmt.fmt.pix.height; | |
8b6faacd | 1693 | vpfe_dev->crop = rect; |
ffc2a6bb | 1694 | sel->r = rect; |
7da8a6cb MK |
1695 | unlock_out: |
1696 | mutex_unlock(&vpfe_dev->lock); | |
1697 | return ret; | |
1698 | } | |
1699 | ||
1700 | ||
1701 | static long vpfe_param_handler(struct file *file, void *priv, | |
6d43be77 | 1702 | bool valid_prio, unsigned int cmd, void *param) |
7da8a6cb MK |
1703 | { |
1704 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
2a0de2c8 | 1705 | int ret; |
7da8a6cb | 1706 | |
6a4f0623 | 1707 | v4l2_dbg(2, debug, &vpfe_dev->v4l2_dev, "vpfe_param_handler\n"); |
7da8a6cb MK |
1708 | |
1709 | if (vpfe_dev->started) { | |
1710 | /* only allowed if streaming is not started */ | |
6a4f0623 MK |
1711 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, |
1712 | "device already started\n"); | |
7da8a6cb MK |
1713 | return -EBUSY; |
1714 | } | |
1715 | ||
1716 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1717 | if (ret) | |
1718 | return ret; | |
1719 | ||
1720 | switch (cmd) { | |
1721 | case VPFE_CMD_S_CCDC_RAW_PARAMS: | |
1722 | v4l2_warn(&vpfe_dev->v4l2_dev, | |
1723 | "VPFE_CMD_S_CCDC_RAW_PARAMS: experimental ioctl\n"); | |
6a4f0623 MK |
1724 | if (ccdc_dev->hw_ops.set_params) { |
1725 | ret = ccdc_dev->hw_ops.set_params(param); | |
1726 | if (ret) { | |
1727 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1728 | "Error setting parameters in CCDC\n"); | |
1729 | goto unlock_out; | |
1730 | } | |
9a888ba2 PST |
1731 | ret = vpfe_get_ccdc_image_format(vpfe_dev, |
1732 | &vpfe_dev->fmt); | |
1733 | if (ret < 0) { | |
6a4f0623 MK |
1734 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, |
1735 | "Invalid image format at CCDC\n"); | |
1736 | goto unlock_out; | |
1737 | } | |
1738 | } else { | |
1739 | ret = -EINVAL; | |
1740 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1741 | "VPFE_CMD_S_CCDC_RAW_PARAMS not supported\n"); | |
7da8a6cb MK |
1742 | } |
1743 | break; | |
1744 | default: | |
d1c754a9 | 1745 | ret = -ENOTTY; |
7da8a6cb MK |
1746 | } |
1747 | unlock_out: | |
1748 | mutex_unlock(&vpfe_dev->lock); | |
1749 | return ret; | |
1750 | } | |
1751 | ||
1752 | ||
1753 | /* vpfe capture ioctl operations */ | |
1754 | static const struct v4l2_ioctl_ops vpfe_ioctl_ops = { | |
1755 | .vidioc_querycap = vpfe_querycap, | |
1756 | .vidioc_g_fmt_vid_cap = vpfe_g_fmt_vid_cap, | |
1757 | .vidioc_enum_fmt_vid_cap = vpfe_enum_fmt_vid_cap, | |
1758 | .vidioc_s_fmt_vid_cap = vpfe_s_fmt_vid_cap, | |
1759 | .vidioc_try_fmt_vid_cap = vpfe_try_fmt_vid_cap, | |
1760 | .vidioc_enum_input = vpfe_enum_input, | |
1761 | .vidioc_g_input = vpfe_g_input, | |
1762 | .vidioc_s_input = vpfe_s_input, | |
1763 | .vidioc_querystd = vpfe_querystd, | |
1764 | .vidioc_s_std = vpfe_s_std, | |
1765 | .vidioc_g_std = vpfe_g_std, | |
1766 | .vidioc_reqbufs = vpfe_reqbufs, | |
1767 | .vidioc_querybuf = vpfe_querybuf, | |
1768 | .vidioc_qbuf = vpfe_qbuf, | |
1769 | .vidioc_dqbuf = vpfe_dqbuf, | |
1770 | .vidioc_streamon = vpfe_streamon, | |
1771 | .vidioc_streamoff = vpfe_streamoff, | |
1772 | .vidioc_cropcap = vpfe_cropcap, | |
ffc2a6bb HV |
1773 | .vidioc_g_selection = vpfe_g_selection, |
1774 | .vidioc_s_selection = vpfe_s_selection, | |
7da8a6cb MK |
1775 | .vidioc_default = vpfe_param_handler, |
1776 | }; | |
1777 | ||
1778 | static struct vpfe_device *vpfe_initialize(void) | |
1779 | { | |
1780 | struct vpfe_device *vpfe_dev; | |
1781 | ||
1782 | /* Default number of buffers should be 3 */ | |
1783 | if ((numbuffers > 0) && | |
1784 | (numbuffers < config_params.min_numbuffers)) | |
1785 | numbuffers = config_params.min_numbuffers; | |
1786 | ||
1787 | /* | |
1788 | * Set buffer size to min buffers size if invalid buffer size is | |
1789 | * given | |
1790 | */ | |
1791 | if (bufsize < config_params.min_bufsize) | |
1792 | bufsize = config_params.min_bufsize; | |
1793 | ||
1794 | config_params.numbuffers = numbuffers; | |
1795 | ||
1796 | if (numbuffers) | |
1797 | config_params.device_bufsize = bufsize; | |
1798 | ||
1799 | /* Allocate memory for device objects */ | |
1800 | vpfe_dev = kzalloc(sizeof(*vpfe_dev), GFP_KERNEL); | |
1801 | ||
1802 | return vpfe_dev; | |
1803 | } | |
1804 | ||
7da8a6cb MK |
1805 | /* |
1806 | * vpfe_probe : This function creates device entries by register | |
1807 | * itself to the V4L2 driver and initializes fields of each | |
1808 | * device objects | |
1809 | */ | |
4c62e976 | 1810 | static int vpfe_probe(struct platform_device *pdev) |
7da8a6cb MK |
1811 | { |
1812 | struct vpfe_subdev_info *sdinfo; | |
1813 | struct vpfe_config *vpfe_cfg; | |
1814 | struct resource *res1; | |
1815 | struct vpfe_device *vpfe_dev; | |
1816 | struct i2c_adapter *i2c_adap; | |
1817 | struct video_device *vfd; | |
efb74461 | 1818 | int ret, i, j; |
7da8a6cb MK |
1819 | int num_subdevs = 0; |
1820 | ||
1821 | /* Get the pointer to the device object */ | |
1822 | vpfe_dev = vpfe_initialize(); | |
1823 | ||
1824 | if (!vpfe_dev) { | |
1825 | v4l2_err(pdev->dev.driver, | |
1826 | "Failed to allocate memory for vpfe_dev\n"); | |
efb74461 | 1827 | return -ENOMEM; |
7da8a6cb MK |
1828 | } |
1829 | ||
1830 | vpfe_dev->pdev = &pdev->dev; | |
1831 | ||
c580f295 | 1832 | if (!pdev->dev.platform_data) { |
7da8a6cb | 1833 | v4l2_err(pdev->dev.driver, "Unable to get vpfe config\n"); |
51444ea3 | 1834 | ret = -ENODEV; |
7da8a6cb MK |
1835 | goto probe_free_dev_mem; |
1836 | } | |
1837 | ||
1838 | vpfe_cfg = pdev->dev.platform_data; | |
1839 | vpfe_dev->cfg = vpfe_cfg; | |
c580f295 | 1840 | if (!vpfe_cfg->ccdc || !vpfe_cfg->card_name || !vpfe_cfg->sub_devs) { |
7da8a6cb MK |
1841 | v4l2_err(pdev->dev.driver, "null ptr in vpfe_cfg\n"); |
1842 | ret = -ENOENT; | |
1843 | goto probe_free_dev_mem; | |
1844 | } | |
1845 | ||
7da8a6cb | 1846 | /* Allocate memory for ccdc configuration */ |
e4c0cd0a | 1847 | ccdc_cfg = kmalloc(sizeof(*ccdc_cfg), GFP_KERNEL); |
1827bdc7 HV |
1848 | if (!ccdc_cfg) { |
1849 | ret = -ENOMEM; | |
39e219d9 | 1850 | goto probe_free_dev_mem; |
1827bdc7 | 1851 | } |
7da8a6cb | 1852 | |
2b080c5d DC |
1853 | mutex_lock(&ccdc_lock); |
1854 | ||
7da8a6cb MK |
1855 | strncpy(ccdc_cfg->name, vpfe_cfg->ccdc, 32); |
1856 | /* Get VINT0 irq resource */ | |
1857 | res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 0); | |
1858 | if (!res1) { | |
1859 | v4l2_err(pdev->dev.driver, | |
1860 | "Unable to get interrupt for VINT0\n"); | |
51444ea3 MK |
1861 | ret = -ENODEV; |
1862 | goto probe_free_ccdc_cfg_mem; | |
7da8a6cb MK |
1863 | } |
1864 | vpfe_dev->ccdc_irq0 = res1->start; | |
1865 | ||
1866 | /* Get VINT1 irq resource */ | |
51444ea3 | 1867 | res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 1); |
7da8a6cb MK |
1868 | if (!res1) { |
1869 | v4l2_err(pdev->dev.driver, | |
1870 | "Unable to get interrupt for VINT1\n"); | |
51444ea3 MK |
1871 | ret = -ENODEV; |
1872 | goto probe_free_ccdc_cfg_mem; | |
7da8a6cb MK |
1873 | } |
1874 | vpfe_dev->ccdc_irq1 = res1->start; | |
1875 | ||
d8c279a0 | 1876 | ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, 0, |
7da8a6cb MK |
1877 | "vpfe_capture0", vpfe_dev); |
1878 | ||
1879 | if (0 != ret) { | |
1880 | v4l2_err(pdev->dev.driver, "Unable to request interrupt\n"); | |
51444ea3 | 1881 | goto probe_free_ccdc_cfg_mem; |
7da8a6cb MK |
1882 | } |
1883 | ||
03c278f0 | 1884 | vfd = &vpfe_dev->video_dev; |
7da8a6cb | 1885 | /* Initialize field of video device */ |
03c278f0 | 1886 | vfd->release = video_device_release_empty; |
7da8a6cb MK |
1887 | vfd->fops = &vpfe_fops; |
1888 | vfd->ioctl_ops = &vpfe_ioctl_ops; | |
7da8a6cb | 1889 | vfd->tvnorms = 0; |
7da8a6cb MK |
1890 | vfd->v4l2_dev = &vpfe_dev->v4l2_dev; |
1891 | snprintf(vfd->name, sizeof(vfd->name), | |
1892 | "%s_V%d.%d.%d", | |
1893 | CAPTURE_DRV_NAME, | |
1894 | (VPFE_CAPTURE_VERSION_CODE >> 16) & 0xff, | |
1895 | (VPFE_CAPTURE_VERSION_CODE >> 8) & 0xff, | |
1896 | (VPFE_CAPTURE_VERSION_CODE) & 0xff); | |
7da8a6cb MK |
1897 | |
1898 | ret = v4l2_device_register(&pdev->dev, &vpfe_dev->v4l2_dev); | |
1899 | if (ret) { | |
1900 | v4l2_err(pdev->dev.driver, | |
1901 | "Unable to register v4l2 device.\n"); | |
03c278f0 | 1902 | goto probe_out_release_irq; |
7da8a6cb MK |
1903 | } |
1904 | v4l2_info(&vpfe_dev->v4l2_dev, "v4l2 device registered\n"); | |
1905 | spin_lock_init(&vpfe_dev->irqlock); | |
1906 | spin_lock_init(&vpfe_dev->dma_queue_lock); | |
1907 | mutex_init(&vpfe_dev->lock); | |
1908 | ||
1909 | /* Initialize field of the device objects */ | |
1910 | vpfe_dev->numbuffers = config_params.numbuffers; | |
1911 | ||
7da8a6cb MK |
1912 | /* register video device */ |
1913 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1914 | "trying to register vpfe device.\n"); | |
1915 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
212bdba3 | 1916 | "video_dev=%p\n", &vpfe_dev->video_dev); |
7da8a6cb | 1917 | vpfe_dev->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
03c278f0 | 1918 | ret = video_register_device(&vpfe_dev->video_dev, |
7da8a6cb MK |
1919 | VFL_TYPE_GRABBER, -1); |
1920 | ||
1921 | if (ret) { | |
1922 | v4l2_err(pdev->dev.driver, | |
1923 | "Unable to register video device.\n"); | |
1924 | goto probe_out_v4l2_unregister; | |
1925 | } | |
1926 | ||
1927 | v4l2_info(&vpfe_dev->v4l2_dev, "video device registered\n"); | |
1928 | /* set the driver data in platform device */ | |
1929 | platform_set_drvdata(pdev, vpfe_dev); | |
1930 | /* set driver private data */ | |
03c278f0 | 1931 | video_set_drvdata(&vpfe_dev->video_dev, vpfe_dev); |
14cbaafe | 1932 | i2c_adap = i2c_get_adapter(vpfe_cfg->i2c_adapter_id); |
7da8a6cb | 1933 | num_subdevs = vpfe_cfg->num_subdevs; |
ed011a23 ME |
1934 | vpfe_dev->sd = kmalloc_array(num_subdevs, |
1935 | sizeof(*vpfe_dev->sd), | |
1936 | GFP_KERNEL); | |
c580f295 | 1937 | if (!vpfe_dev->sd) { |
7da8a6cb MK |
1938 | ret = -ENOMEM; |
1939 | goto probe_out_video_unregister; | |
1940 | } | |
1941 | ||
1942 | for (i = 0; i < num_subdevs; i++) { | |
1943 | struct v4l2_input *inps; | |
1944 | ||
1945 | sdinfo = &vpfe_cfg->sub_devs[i]; | |
1946 | ||
1947 | /* Load up the subdevice */ | |
1948 | vpfe_dev->sd[i] = | |
1949 | v4l2_i2c_new_subdev_board(&vpfe_dev->v4l2_dev, | |
1950 | i2c_adap, | |
7da8a6cb MK |
1951 | &sdinfo->board_info, |
1952 | NULL); | |
1953 | if (vpfe_dev->sd[i]) { | |
1954 | v4l2_info(&vpfe_dev->v4l2_dev, | |
1955 | "v4l2 sub device %s registered\n", | |
1956 | sdinfo->name); | |
1957 | vpfe_dev->sd[i]->grp_id = sdinfo->grp_id; | |
1958 | /* update tvnorms from the sub devices */ | |
1959 | for (j = 0; j < sdinfo->num_inputs; j++) { | |
1960 | inps = &sdinfo->inputs[j]; | |
1961 | vfd->tvnorms |= inps->std; | |
1962 | } | |
1963 | } else { | |
1964 | v4l2_info(&vpfe_dev->v4l2_dev, | |
1965 | "v4l2 sub device %s register fails\n", | |
1966 | sdinfo->name); | |
d3d83ee2 | 1967 | ret = -ENXIO; |
7da8a6cb MK |
1968 | goto probe_sd_out; |
1969 | } | |
1970 | } | |
1971 | ||
1972 | /* set first sub device as current one */ | |
1973 | vpfe_dev->current_subdev = &vpfe_cfg->sub_devs[0]; | |
6f55dbae | 1974 | vpfe_dev->v4l2_dev.ctrl_handler = vpfe_dev->sd[0]->ctrl_handler; |
7da8a6cb MK |
1975 | |
1976 | /* We have at least one sub device to work with */ | |
1977 | mutex_unlock(&ccdc_lock); | |
1978 | return 0; | |
1979 | ||
1980 | probe_sd_out: | |
1981 | kfree(vpfe_dev->sd); | |
1982 | probe_out_video_unregister: | |
03c278f0 | 1983 | video_unregister_device(&vpfe_dev->video_dev); |
7da8a6cb MK |
1984 | probe_out_v4l2_unregister: |
1985 | v4l2_device_unregister(&vpfe_dev->v4l2_dev); | |
7da8a6cb MK |
1986 | probe_out_release_irq: |
1987 | free_irq(vpfe_dev->ccdc_irq0, vpfe_dev); | |
51444ea3 | 1988 | probe_free_ccdc_cfg_mem: |
7da8a6cb | 1989 | kfree(ccdc_cfg); |
ab51bec1 | 1990 | mutex_unlock(&ccdc_lock); |
7da8a6cb MK |
1991 | probe_free_dev_mem: |
1992 | kfree(vpfe_dev); | |
1993 | return ret; | |
1994 | } | |
1995 | ||
1996 | /* | |
1997 | * vpfe_remove : It un-register device from V4L2 driver | |
1998 | */ | |
4c62e976 | 1999 | static int vpfe_remove(struct platform_device *pdev) |
7da8a6cb MK |
2000 | { |
2001 | struct vpfe_device *vpfe_dev = platform_get_drvdata(pdev); | |
7da8a6cb MK |
2002 | |
2003 | v4l2_info(pdev->dev.driver, "vpfe_remove\n"); | |
2004 | ||
2005 | free_irq(vpfe_dev->ccdc_irq0, vpfe_dev); | |
2006 | kfree(vpfe_dev->sd); | |
2007 | v4l2_device_unregister(&vpfe_dev->v4l2_dev); | |
03c278f0 | 2008 | video_unregister_device(&vpfe_dev->video_dev); |
7da8a6cb MK |
2009 | kfree(vpfe_dev); |
2010 | kfree(ccdc_cfg); | |
2011 | return 0; | |
2012 | } | |
2013 | ||
aa2dc903 | 2014 | static int vpfe_suspend(struct device *dev) |
7da8a6cb | 2015 | { |
aa2dc903 | 2016 | return 0; |
7da8a6cb MK |
2017 | } |
2018 | ||
aa2dc903 | 2019 | static int vpfe_resume(struct device *dev) |
7da8a6cb | 2020 | { |
aa2dc903 | 2021 | return 0; |
7da8a6cb MK |
2022 | } |
2023 | ||
47145210 | 2024 | static const struct dev_pm_ops vpfe_dev_pm_ops = { |
7da8a6cb MK |
2025 | .suspend = vpfe_suspend, |
2026 | .resume = vpfe_resume, | |
2027 | }; | |
2028 | ||
a1b3a6ce | 2029 | static struct platform_driver vpfe_driver = { |
7da8a6cb MK |
2030 | .driver = { |
2031 | .name = CAPTURE_DRV_NAME, | |
7da8a6cb MK |
2032 | .pm = &vpfe_dev_pm_ops, |
2033 | }, | |
2034 | .probe = vpfe_probe, | |
4c62e976 | 2035 | .remove = vpfe_remove, |
7da8a6cb MK |
2036 | }; |
2037 | ||
1d6629b1 | 2038 | module_platform_driver(vpfe_driver); |