Commit | Line | Data |
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c942fddf | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
7da8a6cb MK |
2 | /* |
3 | * Copyright (C) 2008-2009 Texas Instruments Inc | |
4 | * | |
7da8a6cb MK |
5 | * Driver name : VPFE Capture driver |
6 | * VPFE Capture driver allows applications to capture and stream video | |
7 | * frames on DaVinci SoCs (DM6446, DM355 etc) from a YUV source such as | |
8 | * TVP5146 or Raw Bayer RGB image data from an image sensor | |
9 | * such as Microns' MT9T001, MT9T031 etc. | |
10 | * | |
11 | * These SoCs have, in common, a Video Processing Subsystem (VPSS) that | |
12 | * consists of a Video Processing Front End (VPFE) for capturing | |
13 | * video/raw image data and Video Processing Back End (VPBE) for displaying | |
14 | * YUV data through an in-built analog encoder or Digital LCD port. This | |
15 | * driver is for capture through VPFE. A typical EVM using these SoCs have | |
16 | * following high level configuration. | |
17 | * | |
7da8a6cb | 18 | * decoder(TVP5146/ YUV/ |
4a3fad70 MCC |
19 | * MT9T001) --> Raw Bayer RGB ---> MUX -> VPFE (CCDC/ISIF) |
20 | * data input | | | |
7da8a6cb MK |
21 | * V | |
22 | * SDRAM | | |
23 | * V | |
24 | * Image Processor | |
25 | * | | |
26 | * V | |
27 | * SDRAM | |
28 | * The data flow happens from a decoder connected to the VPFE over a | |
29 | * YUV embedded (BT.656/BT.1120) or separate sync or raw bayer rgb interface | |
30 | * and to the input of VPFE through an optional MUX (if more inputs are | |
31 | * to be interfaced on the EVM). The input data is first passed through | |
32 | * CCDC (CCD Controller, a.k.a Image Sensor Interface, ISIF). The CCDC | |
33 | * does very little or no processing on YUV data and does pre-process Raw | |
34 | * Bayer RGB data through modules such as Defect Pixel Correction (DFC) | |
35 | * Color Space Conversion (CSC), data gain/offset etc. After this, data | |
36 | * can be written to SDRAM or can be connected to the image processing | |
37 | * block such as IPIPE (on DM355 only). | |
38 | * | |
39 | * Features supported | |
4a3fad70 | 40 | * - MMAP IO |
7da8a6cb MK |
41 | * - Capture using TVP5146 over BT.656 |
42 | * - support for interfacing decoders using sub device model | |
43 | * - Work with DM355 or DM6446 CCDC to do Raw Bayer RGB/YUV | |
44 | * data capture to SDRAM. | |
45 | * TODO list | |
46 | * - Support multiple REQBUF after open | |
47 | * - Support for de-allocating buffers through REQBUF | |
48 | * - Support for Raw Bayer RGB capture | |
49 | * - Support for chaining Image Processor | |
50 | * - Support for static allocation of buffers | |
51 | * - Support for USERPTR IO | |
52 | * - Support for STREAMON before QBUF | |
53 | * - Support for control ioctls | |
54 | */ | |
55 | #include <linux/module.h> | |
5a0e3ad6 | 56 | #include <linux/slab.h> |
7da8a6cb MK |
57 | #include <linux/init.h> |
58 | #include <linux/platform_device.h> | |
59 | #include <linux/interrupt.h> | |
7da8a6cb MK |
60 | #include <media/v4l2-common.h> |
61 | #include <linux/io.h> | |
62 | #include <media/davinci/vpfe_capture.h> | |
63 | #include "ccdc_hw_device.h" | |
64 | ||
65 | static int debug; | |
66 | static u32 numbuffers = 3; | |
67 | static u32 bufsize = (720 * 576 * 2); | |
68 | ||
69 | module_param(numbuffers, uint, S_IRUGO); | |
70 | module_param(bufsize, uint, S_IRUGO); | |
71 | module_param(debug, int, 0644); | |
72 | ||
73 | MODULE_PARM_DESC(numbuffers, "buffer count (default:3)"); | |
74 | MODULE_PARM_DESC(bufsize, "buffer size in bytes (default:720 x 576 x 2)"); | |
75 | MODULE_PARM_DESC(debug, "Debug level 0-1"); | |
76 | ||
77 | MODULE_DESCRIPTION("VPFE Video for Linux Capture Driver"); | |
78 | MODULE_LICENSE("GPL"); | |
79 | MODULE_AUTHOR("Texas Instruments"); | |
80 | ||
81 | /* standard information */ | |
82 | struct vpfe_standard { | |
83 | v4l2_std_id std_id; | |
84 | unsigned int width; | |
85 | unsigned int height; | |
86 | struct v4l2_fract pixelaspect; | |
87 | /* 0 - progressive, 1 - interlaced */ | |
88 | int frame_format; | |
89 | }; | |
90 | ||
91 | /* ccdc configuration */ | |
92 | struct ccdc_config { | |
93 | /* This make sure vpfe is probed and ready to go */ | |
94 | int vpfe_probed; | |
95 | /* name of ccdc device */ | |
96 | char name[32]; | |
7da8a6cb MK |
97 | }; |
98 | ||
99 | /* data structures */ | |
100 | static struct vpfe_config_params config_params = { | |
101 | .min_numbuffers = 3, | |
102 | .numbuffers = 3, | |
103 | .min_bufsize = 720 * 480 * 2, | |
104 | .device_bufsize = 720 * 576 * 2, | |
105 | }; | |
106 | ||
107 | /* ccdc device registered */ | |
1e6be014 | 108 | static const struct ccdc_hw_device *ccdc_dev; |
7da8a6cb MK |
109 | /* lock for accessing ccdc information */ |
110 | static DEFINE_MUTEX(ccdc_lock); | |
111 | /* ccdc configuration */ | |
112 | static struct ccdc_config *ccdc_cfg; | |
113 | ||
47c0b565 | 114 | static const struct vpfe_standard vpfe_standards[] = { |
7da8a6cb MK |
115 | {V4L2_STD_525_60, 720, 480, {11, 10}, 1}, |
116 | {V4L2_STD_625_50, 720, 576, {54, 59}, 1}, | |
117 | }; | |
118 | ||
119 | /* Used when raw Bayer image from ccdc is directly captured to SDRAM */ | |
120 | static const struct vpfe_pixel_format vpfe_pix_fmts[] = { | |
121 | { | |
ee484875 | 122 | .pixelformat = V4L2_PIX_FMT_SBGGR8, |
7da8a6cb MK |
123 | .bpp = 1, |
124 | }, | |
125 | { | |
ee484875 | 126 | .pixelformat = V4L2_PIX_FMT_SBGGR16, |
7da8a6cb MK |
127 | .bpp = 2, |
128 | }, | |
129 | { | |
ee484875 | 130 | .pixelformat = V4L2_PIX_FMT_SGRBG10DPCM8, |
7da8a6cb MK |
131 | .bpp = 1, |
132 | }, | |
133 | { | |
ee484875 | 134 | .pixelformat = V4L2_PIX_FMT_UYVY, |
7da8a6cb MK |
135 | .bpp = 2, |
136 | }, | |
137 | { | |
ee484875 | 138 | .pixelformat = V4L2_PIX_FMT_YUYV, |
7da8a6cb MK |
139 | .bpp = 2, |
140 | }, | |
141 | { | |
ee484875 | 142 | .pixelformat = V4L2_PIX_FMT_NV12, |
7da8a6cb MK |
143 | .bpp = 1, |
144 | }, | |
145 | }; | |
146 | ||
147 | /* | |
148 | * vpfe_lookup_pix_format() | |
149 | * lookup an entry in the vpfe pix format table based on pix_format | |
150 | */ | |
151 | static const struct vpfe_pixel_format *vpfe_lookup_pix_format(u32 pix_format) | |
152 | { | |
153 | int i; | |
154 | ||
155 | for (i = 0; i < ARRAY_SIZE(vpfe_pix_fmts); i++) { | |
ee484875 | 156 | if (pix_format == vpfe_pix_fmts[i].pixelformat) |
7da8a6cb MK |
157 | return &vpfe_pix_fmts[i]; |
158 | } | |
159 | return NULL; | |
160 | } | |
161 | ||
162 | /* | |
163 | * vpfe_register_ccdc_device. CCDC module calls this to | |
164 | * register with vpfe capture | |
165 | */ | |
1e6be014 | 166 | int vpfe_register_ccdc_device(const struct ccdc_hw_device *dev) |
7da8a6cb MK |
167 | { |
168 | int ret = 0; | |
169 | printk(KERN_NOTICE "vpfe_register_ccdc_device: %s\n", dev->name); | |
170 | ||
b0e4cfae AP |
171 | if (!dev->hw_ops.open || |
172 | !dev->hw_ops.enable || | |
173 | !dev->hw_ops.set_hw_if_params || | |
174 | !dev->hw_ops.configure || | |
175 | !dev->hw_ops.set_buftype || | |
176 | !dev->hw_ops.get_buftype || | |
177 | !dev->hw_ops.enum_pix || | |
178 | !dev->hw_ops.set_frame_format || | |
179 | !dev->hw_ops.get_frame_format || | |
180 | !dev->hw_ops.get_pixel_format || | |
181 | !dev->hw_ops.set_pixel_format || | |
182 | !dev->hw_ops.set_image_window || | |
183 | !dev->hw_ops.get_image_window || | |
184 | !dev->hw_ops.get_line_length || | |
185 | !dev->hw_ops.getfid) | |
186 | return -EINVAL; | |
7da8a6cb MK |
187 | |
188 | mutex_lock(&ccdc_lock); | |
c580f295 | 189 | if (!ccdc_cfg) { |
7da8a6cb MK |
190 | /* |
191 | * TODO. Will this ever happen? if so, we need to fix it. | |
192 | * Proabably we need to add the request to a linked list and | |
193 | * walk through it during vpfe probe | |
194 | */ | |
195 | printk(KERN_ERR "vpfe capture not initialized\n"); | |
51444ea3 | 196 | ret = -EFAULT; |
7da8a6cb MK |
197 | goto unlock; |
198 | } | |
199 | ||
200 | if (strcmp(dev->name, ccdc_cfg->name)) { | |
201 | /* ignore this ccdc */ | |
51444ea3 | 202 | ret = -EINVAL; |
7da8a6cb MK |
203 | goto unlock; |
204 | } | |
205 | ||
206 | if (ccdc_dev) { | |
207 | printk(KERN_ERR "ccdc already registered\n"); | |
51444ea3 | 208 | ret = -EINVAL; |
7da8a6cb MK |
209 | goto unlock; |
210 | } | |
211 | ||
212 | ccdc_dev = dev; | |
7da8a6cb MK |
213 | unlock: |
214 | mutex_unlock(&ccdc_lock); | |
215 | return ret; | |
216 | } | |
217 | EXPORT_SYMBOL(vpfe_register_ccdc_device); | |
218 | ||
219 | /* | |
220 | * vpfe_unregister_ccdc_device. CCDC module calls this to | |
221 | * unregister with vpfe capture | |
222 | */ | |
1e6be014 | 223 | void vpfe_unregister_ccdc_device(const struct ccdc_hw_device *dev) |
7da8a6cb | 224 | { |
c580f295 | 225 | if (!dev) { |
7da8a6cb MK |
226 | printk(KERN_ERR "invalid ccdc device ptr\n"); |
227 | return; | |
228 | } | |
229 | ||
230 | printk(KERN_NOTICE "vpfe_unregister_ccdc_device, dev->name = %s\n", | |
231 | dev->name); | |
232 | ||
233 | if (strcmp(dev->name, ccdc_cfg->name)) { | |
234 | /* ignore this ccdc */ | |
235 | return; | |
236 | } | |
237 | ||
238 | mutex_lock(&ccdc_lock); | |
239 | ccdc_dev = NULL; | |
240 | mutex_unlock(&ccdc_lock); | |
7da8a6cb MK |
241 | } |
242 | EXPORT_SYMBOL(vpfe_unregister_ccdc_device); | |
243 | ||
7da8a6cb MK |
244 | /* |
245 | * vpfe_config_ccdc_image_format() | |
246 | * For a pix format, configure ccdc to setup the capture | |
247 | */ | |
248 | static int vpfe_config_ccdc_image_format(struct vpfe_device *vpfe_dev) | |
249 | { | |
250 | enum ccdc_frmfmt frm_fmt = CCDC_FRMFMT_INTERLACED; | |
251 | int ret = 0; | |
252 | ||
253 | if (ccdc_dev->hw_ops.set_pixel_format( | |
254 | vpfe_dev->fmt.fmt.pix.pixelformat) < 0) { | |
255 | v4l2_err(&vpfe_dev->v4l2_dev, | |
256 | "couldn't set pix format in ccdc\n"); | |
257 | return -EINVAL; | |
258 | } | |
259 | /* configure the image window */ | |
260 | ccdc_dev->hw_ops.set_image_window(&vpfe_dev->crop); | |
261 | ||
262 | switch (vpfe_dev->fmt.fmt.pix.field) { | |
263 | case V4L2_FIELD_INTERLACED: | |
264 | /* do nothing, since it is default */ | |
265 | ret = ccdc_dev->hw_ops.set_buftype( | |
266 | CCDC_BUFTYPE_FLD_INTERLEAVED); | |
267 | break; | |
268 | case V4L2_FIELD_NONE: | |
269 | frm_fmt = CCDC_FRMFMT_PROGRESSIVE; | |
270 | /* buffer type only applicable for interlaced scan */ | |
271 | break; | |
272 | case V4L2_FIELD_SEQ_TB: | |
273 | ret = ccdc_dev->hw_ops.set_buftype( | |
274 | CCDC_BUFTYPE_FLD_SEPARATED); | |
275 | break; | |
276 | default: | |
277 | return -EINVAL; | |
278 | } | |
279 | ||
280 | /* set the frame format */ | |
281 | if (!ret) | |
282 | ret = ccdc_dev->hw_ops.set_frame_format(frm_fmt); | |
283 | return ret; | |
284 | } | |
285 | /* | |
286 | * vpfe_config_image_format() | |
287 | * For a given standard, this functions sets up the default | |
288 | * pix format & crop values in the vpfe device and ccdc. It first | |
289 | * starts with defaults based values from the standard table. | |
da298c6d | 290 | * It then checks if sub device supports get_fmt and then override the |
7da8a6cb MK |
291 | * values based on that.Sets crop values to match with scan resolution |
292 | * starting at 0,0. It calls vpfe_config_ccdc_image_format() set the | |
293 | * values in ccdc | |
294 | */ | |
295 | static int vpfe_config_image_format(struct vpfe_device *vpfe_dev, | |
314527ac | 296 | v4l2_std_id std_id) |
7da8a6cb MK |
297 | { |
298 | struct vpfe_subdev_info *sdinfo = vpfe_dev->current_subdev; | |
da298c6d HV |
299 | struct v4l2_subdev_format fmt = { |
300 | .which = V4L2_SUBDEV_FORMAT_ACTIVE, | |
301 | }; | |
302 | struct v4l2_mbus_framefmt *mbus_fmt = &fmt.format; | |
d3ca7759 | 303 | struct v4l2_pix_format *pix = &vpfe_dev->fmt.fmt.pix; |
2a0de2c8 | 304 | int i, ret; |
7da8a6cb MK |
305 | |
306 | for (i = 0; i < ARRAY_SIZE(vpfe_standards); i++) { | |
314527ac | 307 | if (vpfe_standards[i].std_id & std_id) { |
7da8a6cb MK |
308 | vpfe_dev->std_info.active_pixels = |
309 | vpfe_standards[i].width; | |
310 | vpfe_dev->std_info.active_lines = | |
311 | vpfe_standards[i].height; | |
312 | vpfe_dev->std_info.frame_format = | |
313 | vpfe_standards[i].frame_format; | |
314 | vpfe_dev->std_index = i; | |
315 | break; | |
316 | } | |
317 | } | |
318 | ||
319 | if (i == ARRAY_SIZE(vpfe_standards)) { | |
320 | v4l2_err(&vpfe_dev->v4l2_dev, "standard not supported\n"); | |
321 | return -EINVAL; | |
322 | } | |
323 | ||
324 | vpfe_dev->crop.top = 0; | |
325 | vpfe_dev->crop.left = 0; | |
326 | vpfe_dev->crop.width = vpfe_dev->std_info.active_pixels; | |
327 | vpfe_dev->crop.height = vpfe_dev->std_info.active_lines; | |
d3ca7759 HV |
328 | pix->width = vpfe_dev->crop.width; |
329 | pix->height = vpfe_dev->crop.height; | |
7da8a6cb MK |
330 | |
331 | /* first field and frame format based on standard frame format */ | |
332 | if (vpfe_dev->std_info.frame_format) { | |
d3ca7759 | 333 | pix->field = V4L2_FIELD_INTERLACED; |
7da8a6cb | 334 | /* assume V4L2_PIX_FMT_UYVY as default */ |
d3ca7759 | 335 | pix->pixelformat = V4L2_PIX_FMT_UYVY; |
da298c6d | 336 | v4l2_fill_mbus_format(mbus_fmt, pix, |
27ffaeb0 | 337 | MEDIA_BUS_FMT_YUYV10_2X10); |
7da8a6cb | 338 | } else { |
d3ca7759 | 339 | pix->field = V4L2_FIELD_NONE; |
7da8a6cb | 340 | /* assume V4L2_PIX_FMT_SBGGR8 */ |
d3ca7759 | 341 | pix->pixelformat = V4L2_PIX_FMT_SBGGR8; |
da298c6d | 342 | v4l2_fill_mbus_format(mbus_fmt, pix, |
27ffaeb0 | 343 | MEDIA_BUS_FMT_SBGGR8_1X8); |
7da8a6cb MK |
344 | } |
345 | ||
da298c6d | 346 | /* if sub device supports get_fmt, override the defaults */ |
7da8a6cb | 347 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, |
da298c6d | 348 | sdinfo->grp_id, pad, get_fmt, NULL, &fmt); |
7da8a6cb MK |
349 | |
350 | if (ret && ret != -ENOIOCTLCMD) { | |
351 | v4l2_err(&vpfe_dev->v4l2_dev, | |
da298c6d | 352 | "error in getting get_fmt from sub device\n"); |
7da8a6cb MK |
353 | return ret; |
354 | } | |
da298c6d | 355 | v4l2_fill_pix_format(pix, mbus_fmt); |
d3ca7759 HV |
356 | pix->bytesperline = pix->width * 2; |
357 | pix->sizeimage = pix->bytesperline * pix->height; | |
7da8a6cb MK |
358 | |
359 | /* Sets the values in CCDC */ | |
360 | ret = vpfe_config_ccdc_image_format(vpfe_dev); | |
361 | if (ret) | |
362 | return ret; | |
363 | ||
364 | /* Update the values of sizeimage and bytesperline */ | |
692f6375 DC |
365 | pix->bytesperline = ccdc_dev->hw_ops.get_line_length(); |
366 | pix->sizeimage = pix->bytesperline * pix->height; | |
367 | ||
368 | return 0; | |
7da8a6cb MK |
369 | } |
370 | ||
371 | static int vpfe_initialize_device(struct vpfe_device *vpfe_dev) | |
372 | { | |
2a0de2c8 | 373 | int ret; |
7da8a6cb MK |
374 | |
375 | /* set first input of current subdevice as the current input */ | |
376 | vpfe_dev->current_input = 0; | |
377 | ||
378 | /* set default standard */ | |
379 | vpfe_dev->std_index = 0; | |
380 | ||
381 | /* Configure the default format information */ | |
382 | ret = vpfe_config_image_format(vpfe_dev, | |
314527ac | 383 | vpfe_standards[vpfe_dev->std_index].std_id); |
7da8a6cb MK |
384 | if (ret) |
385 | return ret; | |
386 | ||
387 | /* now open the ccdc device to initialize it */ | |
388 | mutex_lock(&ccdc_lock); | |
c580f295 | 389 | if (!ccdc_dev) { |
7da8a6cb MK |
390 | v4l2_err(&vpfe_dev->v4l2_dev, "ccdc device not registered\n"); |
391 | ret = -ENODEV; | |
392 | goto unlock; | |
393 | } | |
394 | ||
395 | if (!try_module_get(ccdc_dev->owner)) { | |
396 | v4l2_err(&vpfe_dev->v4l2_dev, "Couldn't lock ccdc module\n"); | |
397 | ret = -ENODEV; | |
398 | goto unlock; | |
399 | } | |
400 | ret = ccdc_dev->hw_ops.open(vpfe_dev->pdev); | |
401 | if (!ret) | |
402 | vpfe_dev->initialized = 1; | |
085b54a2 VH |
403 | |
404 | /* Clear all VPFE/CCDC interrupts */ | |
405 | if (vpfe_dev->cfg->clr_intr) | |
406 | vpfe_dev->cfg->clr_intr(-1); | |
407 | ||
7da8a6cb MK |
408 | unlock: |
409 | mutex_unlock(&ccdc_lock); | |
410 | return ret; | |
411 | } | |
412 | ||
413 | /* | |
414 | * vpfe_open : It creates object of file handle structure and | |
415 | * stores it in private_data member of filepointer | |
416 | */ | |
417 | static int vpfe_open(struct file *file) | |
418 | { | |
419 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
3bdaa382 | 420 | struct video_device *vdev = video_devdata(file); |
7da8a6cb MK |
421 | struct vpfe_fh *fh; |
422 | ||
423 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_open\n"); | |
424 | ||
425 | if (!vpfe_dev->cfg->num_subdevs) { | |
426 | v4l2_err(&vpfe_dev->v4l2_dev, "No decoder registered\n"); | |
427 | return -ENODEV; | |
428 | } | |
429 | ||
430 | /* Allocate memory for the file handle object */ | |
1d3811d3 | 431 | fh = kmalloc(sizeof(*fh), GFP_KERNEL); |
11691f0e | 432 | if (!fh) |
7da8a6cb | 433 | return -ENOMEM; |
11691f0e | 434 | |
7da8a6cb MK |
435 | /* store pointer to fh in private_data member of file */ |
436 | file->private_data = fh; | |
437 | fh->vpfe_dev = vpfe_dev; | |
3bdaa382 | 438 | v4l2_fh_init(&fh->fh, vdev); |
7da8a6cb MK |
439 | mutex_lock(&vpfe_dev->lock); |
440 | /* If decoder is not initialized. initialize it */ | |
441 | if (!vpfe_dev->initialized) { | |
442 | if (vpfe_initialize_device(vpfe_dev)) { | |
443 | mutex_unlock(&vpfe_dev->lock); | |
d39e74fd SV |
444 | v4l2_fh_exit(&fh->fh); |
445 | kfree(fh); | |
7da8a6cb MK |
446 | return -ENODEV; |
447 | } | |
448 | } | |
449 | /* Increment device usrs counter */ | |
450 | vpfe_dev->usrs++; | |
451 | /* Set io_allowed member to false */ | |
452 | fh->io_allowed = 0; | |
3bdaa382 | 453 | v4l2_fh_add(&fh->fh); |
7da8a6cb MK |
454 | mutex_unlock(&vpfe_dev->lock); |
455 | return 0; | |
456 | } | |
457 | ||
458 | static void vpfe_schedule_next_buffer(struct vpfe_device *vpfe_dev) | |
459 | { | |
460 | unsigned long addr; | |
461 | ||
462 | vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next, | |
463 | struct videobuf_buffer, queue); | |
464 | list_del(&vpfe_dev->next_frm->queue); | |
465 | vpfe_dev->next_frm->state = VIDEOBUF_ACTIVE; | |
466 | addr = videobuf_to_dma_contig(vpfe_dev->next_frm); | |
844cc0dc VH |
467 | |
468 | ccdc_dev->hw_ops.setfbaddr(addr); | |
469 | } | |
470 | ||
471 | static void vpfe_schedule_bottom_field(struct vpfe_device *vpfe_dev) | |
472 | { | |
473 | unsigned long addr; | |
474 | ||
475 | addr = videobuf_to_dma_contig(vpfe_dev->cur_frm); | |
476 | addr += vpfe_dev->field_off; | |
7da8a6cb MK |
477 | ccdc_dev->hw_ops.setfbaddr(addr); |
478 | } | |
479 | ||
480 | static void vpfe_process_buffer_complete(struct vpfe_device *vpfe_dev) | |
481 | { | |
15a40b27 | 482 | vpfe_dev->cur_frm->ts = ktime_get_ns(); |
7da8a6cb MK |
483 | vpfe_dev->cur_frm->state = VIDEOBUF_DONE; |
484 | vpfe_dev->cur_frm->size = vpfe_dev->fmt.fmt.pix.sizeimage; | |
485 | wake_up_interruptible(&vpfe_dev->cur_frm->done); | |
486 | vpfe_dev->cur_frm = vpfe_dev->next_frm; | |
487 | } | |
488 | ||
489 | /* ISR for VINT0*/ | |
490 | static irqreturn_t vpfe_isr(int irq, void *dev_id) | |
491 | { | |
492 | struct vpfe_device *vpfe_dev = dev_id; | |
493 | enum v4l2_field field; | |
7da8a6cb MK |
494 | int fid; |
495 | ||
496 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nStarting vpfe_isr...\n"); | |
497 | field = vpfe_dev->fmt.fmt.pix.field; | |
498 | ||
499 | /* if streaming not started, don't do anything */ | |
500 | if (!vpfe_dev->started) | |
085b54a2 | 501 | goto clear_intr; |
7da8a6cb MK |
502 | |
503 | /* only for 6446 this will be applicable */ | |
c580f295 | 504 | if (ccdc_dev->hw_ops.reset) |
7da8a6cb MK |
505 | ccdc_dev->hw_ops.reset(); |
506 | ||
507 | if (field == V4L2_FIELD_NONE) { | |
508 | /* handle progressive frame capture */ | |
509 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
510 | "frame format is progressive...\n"); | |
511 | if (vpfe_dev->cur_frm != vpfe_dev->next_frm) | |
512 | vpfe_process_buffer_complete(vpfe_dev); | |
085b54a2 | 513 | goto clear_intr; |
7da8a6cb MK |
514 | } |
515 | ||
516 | /* interlaced or TB capture check which field we are in hardware */ | |
517 | fid = ccdc_dev->hw_ops.getfid(); | |
518 | ||
519 | /* switch the software maintained field id */ | |
520 | vpfe_dev->field_id ^= 1; | |
521 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "field id = %x:%x.\n", | |
522 | fid, vpfe_dev->field_id); | |
523 | if (fid == vpfe_dev->field_id) { | |
524 | /* we are in-sync here,continue */ | |
525 | if (fid == 0) { | |
526 | /* | |
527 | * One frame is just being captured. If the next frame | |
528 | * is available, release the current frame and move on | |
529 | */ | |
530 | if (vpfe_dev->cur_frm != vpfe_dev->next_frm) | |
531 | vpfe_process_buffer_complete(vpfe_dev); | |
532 | /* | |
533 | * based on whether the two fields are stored | |
534 | * interleavely or separately in memory, reconfigure | |
535 | * the CCDC memory address | |
536 | */ | |
b8990656 | 537 | if (field == V4L2_FIELD_SEQ_TB) |
844cc0dc | 538 | vpfe_schedule_bottom_field(vpfe_dev); |
085b54a2 | 539 | goto clear_intr; |
7da8a6cb MK |
540 | } |
541 | /* | |
542 | * if one field is just being captured configure | |
543 | * the next frame get the next frame from the empty | |
544 | * queue if no frame is available hold on to the | |
545 | * current buffer | |
546 | */ | |
547 | spin_lock(&vpfe_dev->dma_queue_lock); | |
548 | if (!list_empty(&vpfe_dev->dma_queue) && | |
549 | vpfe_dev->cur_frm == vpfe_dev->next_frm) | |
550 | vpfe_schedule_next_buffer(vpfe_dev); | |
551 | spin_unlock(&vpfe_dev->dma_queue_lock); | |
552 | } else if (fid == 0) { | |
553 | /* | |
554 | * out of sync. Recover from any hardware out-of-sync. | |
555 | * May loose one frame | |
556 | */ | |
557 | vpfe_dev->field_id = fid; | |
558 | } | |
085b54a2 VH |
559 | clear_intr: |
560 | if (vpfe_dev->cfg->clr_intr) | |
561 | vpfe_dev->cfg->clr_intr(irq); | |
562 | ||
7da8a6cb MK |
563 | return IRQ_HANDLED; |
564 | } | |
565 | ||
566 | /* vdint1_isr - isr handler for VINT1 interrupt */ | |
567 | static irqreturn_t vdint1_isr(int irq, void *dev_id) | |
568 | { | |
569 | struct vpfe_device *vpfe_dev = dev_id; | |
570 | ||
571 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nInside vdint1_isr...\n"); | |
572 | ||
573 | /* if streaming not started, don't do anything */ | |
085b54a2 VH |
574 | if (!vpfe_dev->started) { |
575 | if (vpfe_dev->cfg->clr_intr) | |
576 | vpfe_dev->cfg->clr_intr(irq); | |
7da8a6cb | 577 | return IRQ_HANDLED; |
085b54a2 | 578 | } |
7da8a6cb MK |
579 | |
580 | spin_lock(&vpfe_dev->dma_queue_lock); | |
581 | if ((vpfe_dev->fmt.fmt.pix.field == V4L2_FIELD_NONE) && | |
582 | !list_empty(&vpfe_dev->dma_queue) && | |
583 | vpfe_dev->cur_frm == vpfe_dev->next_frm) | |
584 | vpfe_schedule_next_buffer(vpfe_dev); | |
585 | spin_unlock(&vpfe_dev->dma_queue_lock); | |
085b54a2 VH |
586 | |
587 | if (vpfe_dev->cfg->clr_intr) | |
588 | vpfe_dev->cfg->clr_intr(irq); | |
589 | ||
7da8a6cb MK |
590 | return IRQ_HANDLED; |
591 | } | |
592 | ||
593 | static void vpfe_detach_irq(struct vpfe_device *vpfe_dev) | |
594 | { | |
595 | enum ccdc_frmfmt frame_format; | |
596 | ||
597 | frame_format = ccdc_dev->hw_ops.get_frame_format(); | |
598 | if (frame_format == CCDC_FRMFMT_PROGRESSIVE) | |
1ead696b | 599 | free_irq(vpfe_dev->ccdc_irq1, vpfe_dev); |
7da8a6cb MK |
600 | } |
601 | ||
602 | static int vpfe_attach_irq(struct vpfe_device *vpfe_dev) | |
603 | { | |
604 | enum ccdc_frmfmt frame_format; | |
605 | ||
606 | frame_format = ccdc_dev->hw_ops.get_frame_format(); | |
607 | if (frame_format == CCDC_FRMFMT_PROGRESSIVE) { | |
608 | return request_irq(vpfe_dev->ccdc_irq1, vdint1_isr, | |
d8c279a0 | 609 | 0, "vpfe_capture1", |
7da8a6cb MK |
610 | vpfe_dev); |
611 | } | |
612 | return 0; | |
613 | } | |
614 | ||
615 | /* vpfe_stop_ccdc_capture: stop streaming in ccdc/isif */ | |
616 | static void vpfe_stop_ccdc_capture(struct vpfe_device *vpfe_dev) | |
617 | { | |
618 | vpfe_dev->started = 0; | |
619 | ccdc_dev->hw_ops.enable(0); | |
620 | if (ccdc_dev->hw_ops.enable_out_to_sdram) | |
621 | ccdc_dev->hw_ops.enable_out_to_sdram(0); | |
622 | } | |
623 | ||
624 | /* | |
625 | * vpfe_release : This function deletes buffer queue, frees the | |
626 | * buffers and the vpfe file handle | |
627 | */ | |
628 | static int vpfe_release(struct file *file) | |
629 | { | |
630 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
631 | struct vpfe_fh *fh = file->private_data; | |
632 | struct vpfe_subdev_info *sdinfo; | |
633 | int ret; | |
634 | ||
635 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_release\n"); | |
636 | ||
637 | /* Get the device lock */ | |
638 | mutex_lock(&vpfe_dev->lock); | |
639 | /* if this instance is doing IO */ | |
640 | if (fh->io_allowed) { | |
641 | if (vpfe_dev->started) { | |
642 | sdinfo = vpfe_dev->current_subdev; | |
643 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, | |
644 | sdinfo->grp_id, | |
645 | video, s_stream, 0); | |
646 | if (ret && (ret != -ENOIOCTLCMD)) | |
647 | v4l2_err(&vpfe_dev->v4l2_dev, | |
648 | "stream off failed in subdev\n"); | |
649 | vpfe_stop_ccdc_capture(vpfe_dev); | |
650 | vpfe_detach_irq(vpfe_dev); | |
651 | videobuf_streamoff(&vpfe_dev->buffer_queue); | |
652 | } | |
653 | vpfe_dev->io_usrs = 0; | |
654 | vpfe_dev->numbuffers = config_params.numbuffers; | |
c1d1e40b LP |
655 | videobuf_stop(&vpfe_dev->buffer_queue); |
656 | videobuf_mmap_free(&vpfe_dev->buffer_queue); | |
7da8a6cb MK |
657 | } |
658 | ||
659 | /* Decrement device usrs counter */ | |
660 | vpfe_dev->usrs--; | |
3bdaa382 LP |
661 | v4l2_fh_del(&fh->fh); |
662 | v4l2_fh_exit(&fh->fh); | |
7da8a6cb MK |
663 | /* If this is the last file handle */ |
664 | if (!vpfe_dev->usrs) { | |
665 | vpfe_dev->initialized = 0; | |
666 | if (ccdc_dev->hw_ops.close) | |
667 | ccdc_dev->hw_ops.close(vpfe_dev->pdev); | |
668 | module_put(ccdc_dev->owner); | |
669 | } | |
670 | mutex_unlock(&vpfe_dev->lock); | |
671 | file->private_data = NULL; | |
672 | /* Free memory allocated to file handle object */ | |
673 | kfree(fh); | |
674 | return 0; | |
675 | } | |
676 | ||
677 | /* | |
678 | * vpfe_mmap : It is used to map kernel space buffers | |
679 | * into user spaces | |
680 | */ | |
681 | static int vpfe_mmap(struct file *file, struct vm_area_struct *vma) | |
682 | { | |
683 | /* Get the device object and file handle object */ | |
684 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
685 | ||
686 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_mmap\n"); | |
687 | ||
688 | return videobuf_mmap_mapper(&vpfe_dev->buffer_queue, vma); | |
689 | } | |
690 | ||
691 | /* | |
692 | * vpfe_poll: It is used for select/poll system call | |
693 | */ | |
c23e0cb8 | 694 | static __poll_t vpfe_poll(struct file *file, poll_table *wait) |
7da8a6cb MK |
695 | { |
696 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
697 | ||
698 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_poll\n"); | |
699 | ||
700 | if (vpfe_dev->started) | |
701 | return videobuf_poll_stream(file, | |
702 | &vpfe_dev->buffer_queue, wait); | |
703 | return 0; | |
704 | } | |
705 | ||
706 | /* vpfe capture driver file operations */ | |
707 | static const struct v4l2_file_operations vpfe_fops = { | |
708 | .owner = THIS_MODULE, | |
709 | .open = vpfe_open, | |
710 | .release = vpfe_release, | |
711 | .unlocked_ioctl = video_ioctl2, | |
712 | .mmap = vpfe_mmap, | |
713 | .poll = vpfe_poll | |
714 | }; | |
715 | ||
716 | /* | |
717 | * vpfe_check_format() | |
718 | * This function adjust the input pixel format as per hardware | |
719 | * capabilities and update the same in pixfmt. | |
720 | * Following algorithm used :- | |
721 | * | |
722 | * If given pixformat is not in the vpfe list of pix formats or not | |
723 | * supported by the hardware, current value of pixformat in the device | |
724 | * is used | |
725 | * If given field is not supported, then current field is used. If field | |
726 | * is different from current, then it is matched with that from sub device. | |
727 | * Minimum height is 2 lines for interlaced or tb field and 1 line for | |
728 | * progressive. Maximum height is clamped to active active lines of scan | |
729 | * Minimum width is 32 bytes in memory and width is clamped to active | |
730 | * pixels of scan. | |
731 | * bytesperline is a multiple of 32. | |
732 | */ | |
733 | static const struct vpfe_pixel_format * | |
734 | vpfe_check_format(struct vpfe_device *vpfe_dev, | |
735 | struct v4l2_pix_format *pixfmt) | |
736 | { | |
737 | u32 min_height = 1, min_width = 32, max_width, max_height; | |
738 | const struct vpfe_pixel_format *vpfe_pix_fmt; | |
739 | u32 pix; | |
740 | int temp, found; | |
741 | ||
742 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
c580f295 | 743 | if (!vpfe_pix_fmt) { |
7da8a6cb MK |
744 | /* |
745 | * use current pixel format in the vpfe device. We | |
746 | * will find this pix format in the table | |
747 | */ | |
748 | pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat; | |
749 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
750 | } | |
751 | ||
752 | /* check if hw supports it */ | |
753 | temp = 0; | |
754 | found = 0; | |
755 | while (ccdc_dev->hw_ops.enum_pix(&pix, temp) >= 0) { | |
ee484875 | 756 | if (vpfe_pix_fmt->pixelformat == pix) { |
7da8a6cb MK |
757 | found = 1; |
758 | break; | |
759 | } | |
760 | temp++; | |
761 | } | |
762 | ||
763 | if (!found) { | |
764 | /* use current pixel format */ | |
765 | pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat; | |
766 | /* | |
767 | * Since this is currently used in the vpfe device, we | |
768 | * will find this pix format in the table | |
769 | */ | |
770 | vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat); | |
771 | } | |
772 | ||
773 | /* check what field format is supported */ | |
774 | if (pixfmt->field == V4L2_FIELD_ANY) { | |
775 | /* if field is any, use current value as default */ | |
776 | pixfmt->field = vpfe_dev->fmt.fmt.pix.field; | |
777 | } | |
778 | ||
779 | /* | |
780 | * if field is not same as current field in the vpfe device | |
781 | * try matching the field with the sub device field | |
782 | */ | |
783 | if (vpfe_dev->fmt.fmt.pix.field != pixfmt->field) { | |
784 | /* | |
785 | * If field value is not in the supported fields, use current | |
786 | * field used in the device as default | |
787 | */ | |
788 | switch (pixfmt->field) { | |
789 | case V4L2_FIELD_INTERLACED: | |
790 | case V4L2_FIELD_SEQ_TB: | |
791 | /* if sub device is supporting progressive, use that */ | |
792 | if (!vpfe_dev->std_info.frame_format) | |
793 | pixfmt->field = V4L2_FIELD_NONE; | |
794 | break; | |
795 | case V4L2_FIELD_NONE: | |
796 | if (vpfe_dev->std_info.frame_format) | |
797 | pixfmt->field = V4L2_FIELD_INTERLACED; | |
798 | break; | |
799 | ||
800 | default: | |
801 | /* use current field as default */ | |
802 | pixfmt->field = vpfe_dev->fmt.fmt.pix.field; | |
803 | break; | |
804 | } | |
805 | } | |
806 | ||
807 | /* Now adjust image resolutions supported */ | |
808 | if (pixfmt->field == V4L2_FIELD_INTERLACED || | |
809 | pixfmt->field == V4L2_FIELD_SEQ_TB) | |
810 | min_height = 2; | |
811 | ||
812 | max_width = vpfe_dev->std_info.active_pixels; | |
813 | max_height = vpfe_dev->std_info.active_lines; | |
814 | min_width /= vpfe_pix_fmt->bpp; | |
815 | ||
816 | v4l2_info(&vpfe_dev->v4l2_dev, "width = %d, height = %d, bpp = %d\n", | |
817 | pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp); | |
818 | ||
819 | pixfmt->width = clamp((pixfmt->width), min_width, max_width); | |
820 | pixfmt->height = clamp((pixfmt->height), min_height, max_height); | |
821 | ||
822 | /* If interlaced, adjust height to be a multiple of 2 */ | |
823 | if (pixfmt->field == V4L2_FIELD_INTERLACED) | |
824 | pixfmt->height &= (~1); | |
825 | /* | |
826 | * recalculate bytesperline and sizeimage since width | |
827 | * and height might have changed | |
828 | */ | |
829 | pixfmt->bytesperline = (((pixfmt->width * vpfe_pix_fmt->bpp) + 31) | |
830 | & ~31); | |
831 | if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12) | |
832 | pixfmt->sizeimage = | |
833 | pixfmt->bytesperline * pixfmt->height + | |
834 | ((pixfmt->bytesperline * pixfmt->height) >> 1); | |
835 | else | |
836 | pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height; | |
837 | ||
ded026e0 | 838 | v4l2_info(&vpfe_dev->v4l2_dev, "adjusted width = %d, height = %d, bpp = %d, bytesperline = %d, sizeimage = %d\n", |
7da8a6cb MK |
839 | pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp, |
840 | pixfmt->bytesperline, pixfmt->sizeimage); | |
841 | return vpfe_pix_fmt; | |
842 | } | |
843 | ||
844 | static int vpfe_querycap(struct file *file, void *priv, | |
845 | struct v4l2_capability *cap) | |
846 | { | |
847 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
848 | ||
849 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querycap\n"); | |
850 | ||
c0decac1 MCC |
851 | strscpy(cap->driver, CAPTURE_DRV_NAME, sizeof(cap->driver)); |
852 | strscpy(cap->bus_info, "VPFE", sizeof(cap->bus_info)); | |
853 | strscpy(cap->card, vpfe_dev->cfg->card_name, sizeof(cap->card)); | |
7da8a6cb MK |
854 | return 0; |
855 | } | |
856 | ||
857 | static int vpfe_g_fmt_vid_cap(struct file *file, void *priv, | |
858 | struct v4l2_format *fmt) | |
859 | { | |
860 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
7da8a6cb MK |
861 | |
862 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_fmt_vid_cap\n"); | |
863 | /* Fill in the information about format */ | |
864 | *fmt = vpfe_dev->fmt; | |
b80cefb4 | 865 | return 0; |
7da8a6cb MK |
866 | } |
867 | ||
868 | static int vpfe_enum_fmt_vid_cap(struct file *file, void *priv, | |
869 | struct v4l2_fmtdesc *fmt) | |
870 | { | |
871 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
872 | const struct vpfe_pixel_format *pix_fmt; | |
7da8a6cb MK |
873 | u32 pix; |
874 | ||
875 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_fmt_vid_cap\n"); | |
876 | ||
877 | if (ccdc_dev->hw_ops.enum_pix(&pix, fmt->index) < 0) | |
878 | return -EINVAL; | |
879 | ||
880 | /* Fill in the information about format */ | |
881 | pix_fmt = vpfe_lookup_pix_format(pix); | |
c580f295 | 882 | if (pix_fmt) { |
5dbef6b3 | 883 | fmt->pixelformat = pix_fmt->pixelformat; |
7da8a6cb MK |
884 | return 0; |
885 | } | |
886 | return -EINVAL; | |
887 | } | |
888 | ||
889 | static int vpfe_s_fmt_vid_cap(struct file *file, void *priv, | |
890 | struct v4l2_format *fmt) | |
891 | { | |
892 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
893 | const struct vpfe_pixel_format *pix_fmts; | |
2a0de2c8 | 894 | int ret; |
7da8a6cb MK |
895 | |
896 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_fmt_vid_cap\n"); | |
897 | ||
898 | /* If streaming is started, return error */ | |
899 | if (vpfe_dev->started) { | |
900 | v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is started\n"); | |
901 | return -EBUSY; | |
902 | } | |
903 | ||
904 | /* Check for valid frame format */ | |
905 | pix_fmts = vpfe_check_format(vpfe_dev, &fmt->fmt.pix); | |
c580f295 | 906 | if (!pix_fmts) |
7da8a6cb MK |
907 | return -EINVAL; |
908 | ||
909 | /* store the pixel format in the device object */ | |
910 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
911 | if (ret) | |
912 | return ret; | |
913 | ||
914 | /* First detach any IRQ if currently attached */ | |
915 | vpfe_detach_irq(vpfe_dev); | |
916 | vpfe_dev->fmt = *fmt; | |
917 | /* set image capture parameters in the ccdc */ | |
918 | ret = vpfe_config_ccdc_image_format(vpfe_dev); | |
919 | mutex_unlock(&vpfe_dev->lock); | |
920 | return ret; | |
921 | } | |
922 | ||
923 | static int vpfe_try_fmt_vid_cap(struct file *file, void *priv, | |
924 | struct v4l2_format *f) | |
925 | { | |
926 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
927 | const struct vpfe_pixel_format *pix_fmts; | |
928 | ||
929 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_try_fmt_vid_cap\n"); | |
930 | ||
931 | pix_fmts = vpfe_check_format(vpfe_dev, &f->fmt.pix); | |
c580f295 | 932 | if (!pix_fmts) |
7da8a6cb MK |
933 | return -EINVAL; |
934 | return 0; | |
935 | } | |
936 | ||
937 | /* | |
938 | * vpfe_get_subdev_input_index - Get subdev index and subdev input index for a | |
939 | * given app input index | |
940 | */ | |
941 | static int vpfe_get_subdev_input_index(struct vpfe_device *vpfe_dev, | |
942 | int *subdev_index, | |
943 | int *subdev_input_index, | |
944 | int app_input_index) | |
945 | { | |
946 | struct vpfe_config *cfg = vpfe_dev->cfg; | |
947 | struct vpfe_subdev_info *sdinfo; | |
948 | int i, j = 0; | |
949 | ||
950 | for (i = 0; i < cfg->num_subdevs; i++) { | |
951 | sdinfo = &cfg->sub_devs[i]; | |
952 | if (app_input_index < (j + sdinfo->num_inputs)) { | |
953 | *subdev_index = i; | |
954 | *subdev_input_index = app_input_index - j; | |
955 | return 0; | |
956 | } | |
957 | j += sdinfo->num_inputs; | |
958 | } | |
959 | return -EINVAL; | |
960 | } | |
961 | ||
962 | /* | |
963 | * vpfe_get_app_input - Get app input index for a given subdev input index | |
964 | * driver stores the input index of the current sub device and translate it | |
965 | * when application request the current input | |
966 | */ | |
967 | static int vpfe_get_app_input_index(struct vpfe_device *vpfe_dev, | |
968 | int *app_input_index) | |
969 | { | |
970 | struct vpfe_config *cfg = vpfe_dev->cfg; | |
971 | struct vpfe_subdev_info *sdinfo; | |
972 | int i, j = 0; | |
973 | ||
974 | for (i = 0; i < cfg->num_subdevs; i++) { | |
975 | sdinfo = &cfg->sub_devs[i]; | |
976 | if (!strcmp(sdinfo->name, vpfe_dev->current_subdev->name)) { | |
977 | if (vpfe_dev->current_input >= sdinfo->num_inputs) | |
978 | return -1; | |
979 | *app_input_index = j + vpfe_dev->current_input; | |
980 | return 0; | |
981 | } | |
982 | j += sdinfo->num_inputs; | |
983 | } | |
984 | return -EINVAL; | |
985 | } | |
986 | ||
987 | static int vpfe_enum_input(struct file *file, void *priv, | |
988 | struct v4l2_input *inp) | |
989 | { | |
990 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
991 | struct vpfe_subdev_info *sdinfo; | |
992 | int subdev, index ; | |
993 | ||
994 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_input\n"); | |
995 | ||
996 | if (vpfe_get_subdev_input_index(vpfe_dev, | |
997 | &subdev, | |
998 | &index, | |
999 | inp->index) < 0) { | |
ded026e0 | 1000 | v4l2_err(&vpfe_dev->v4l2_dev, "input information not found for the subdev\n"); |
7da8a6cb MK |
1001 | return -EINVAL; |
1002 | } | |
1003 | sdinfo = &vpfe_dev->cfg->sub_devs[subdev]; | |
e91b6006 | 1004 | *inp = sdinfo->inputs[index]; |
7da8a6cb MK |
1005 | return 0; |
1006 | } | |
1007 | ||
1008 | static int vpfe_g_input(struct file *file, void *priv, unsigned int *index) | |
1009 | { | |
1010 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1011 | ||
1012 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_input\n"); | |
1013 | ||
1014 | return vpfe_get_app_input_index(vpfe_dev, index); | |
1015 | } | |
1016 | ||
1017 | ||
1018 | static int vpfe_s_input(struct file *file, void *priv, unsigned int index) | |
1019 | { | |
1020 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
6f55dbae | 1021 | struct v4l2_subdev *sd; |
7da8a6cb MK |
1022 | struct vpfe_subdev_info *sdinfo; |
1023 | int subdev_index, inp_index; | |
1024 | struct vpfe_route *route; | |
19d4695a | 1025 | u32 input, output; |
2a0de2c8 | 1026 | int ret; |
7da8a6cb MK |
1027 | |
1028 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_input\n"); | |
1029 | ||
1030 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1031 | if (ret) | |
1032 | return ret; | |
1033 | ||
1034 | /* | |
1035 | * If streaming is started return device busy | |
1036 | * error | |
1037 | */ | |
1038 | if (vpfe_dev->started) { | |
1039 | v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is on\n"); | |
1040 | ret = -EBUSY; | |
1041 | goto unlock_out; | |
1042 | } | |
9a888ba2 PST |
1043 | ret = vpfe_get_subdev_input_index(vpfe_dev, |
1044 | &subdev_index, | |
1045 | &inp_index, | |
1046 | index); | |
1047 | if (ret < 0) { | |
7da8a6cb MK |
1048 | v4l2_err(&vpfe_dev->v4l2_dev, "invalid input index\n"); |
1049 | goto unlock_out; | |
1050 | } | |
1051 | ||
1052 | sdinfo = &vpfe_dev->cfg->sub_devs[subdev_index]; | |
6f55dbae | 1053 | sd = vpfe_dev->sd[subdev_index]; |
7da8a6cb MK |
1054 | route = &sdinfo->routes[inp_index]; |
1055 | if (route && sdinfo->can_route) { | |
1056 | input = route->input; | |
1057 | output = route->output; | |
19d4695a ME |
1058 | } else { |
1059 | input = 0; | |
1060 | output = 0; | |
7da8a6cb MK |
1061 | } |
1062 | ||
6f55dbae HV |
1063 | if (sd) |
1064 | ret = v4l2_subdev_call(sd, video, s_routing, input, output, 0); | |
7da8a6cb MK |
1065 | |
1066 | if (ret) { | |
1067 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1068 | "vpfe_doioctl:error in setting input in decoder\n"); | |
1069 | ret = -EINVAL; | |
1070 | goto unlock_out; | |
1071 | } | |
1072 | vpfe_dev->current_subdev = sdinfo; | |
6f55dbae HV |
1073 | if (sd) |
1074 | vpfe_dev->v4l2_dev.ctrl_handler = sd->ctrl_handler; | |
7da8a6cb MK |
1075 | vpfe_dev->current_input = index; |
1076 | vpfe_dev->std_index = 0; | |
1077 | ||
1078 | /* set the bus/interface parameter for the sub device in ccdc */ | |
1079 | ret = ccdc_dev->hw_ops.set_hw_if_params(&sdinfo->ccdc_if_params); | |
1080 | if (ret) | |
1081 | goto unlock_out; | |
1082 | ||
1083 | /* set the default image parameters in the device */ | |
1084 | ret = vpfe_config_image_format(vpfe_dev, | |
314527ac | 1085 | vpfe_standards[vpfe_dev->std_index].std_id); |
7da8a6cb MK |
1086 | unlock_out: |
1087 | mutex_unlock(&vpfe_dev->lock); | |
1088 | return ret; | |
1089 | } | |
1090 | ||
1091 | static int vpfe_querystd(struct file *file, void *priv, v4l2_std_id *std_id) | |
1092 | { | |
1093 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1094 | struct vpfe_subdev_info *sdinfo; | |
2a0de2c8 | 1095 | int ret; |
7da8a6cb MK |
1096 | |
1097 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querystd\n"); | |
1098 | ||
1099 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1100 | sdinfo = vpfe_dev->current_subdev; | |
1101 | if (ret) | |
1102 | return ret; | |
1103 | /* Call querystd function of decoder device */ | |
1104 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1105 | video, querystd, std_id); | |
1106 | mutex_unlock(&vpfe_dev->lock); | |
1107 | return ret; | |
1108 | } | |
1109 | ||
314527ac | 1110 | static int vpfe_s_std(struct file *file, void *priv, v4l2_std_id std_id) |
7da8a6cb MK |
1111 | { |
1112 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1113 | struct vpfe_subdev_info *sdinfo; | |
2a0de2c8 | 1114 | int ret; |
7da8a6cb MK |
1115 | |
1116 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_std\n"); | |
1117 | ||
1118 | /* Call decoder driver function to set the standard */ | |
1119 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1120 | if (ret) | |
1121 | return ret; | |
1122 | ||
1123 | sdinfo = vpfe_dev->current_subdev; | |
1124 | /* If streaming is started, return device busy error */ | |
1125 | if (vpfe_dev->started) { | |
1126 | v4l2_err(&vpfe_dev->v4l2_dev, "streaming is started\n"); | |
1127 | ret = -EBUSY; | |
1128 | goto unlock_out; | |
1129 | } | |
1130 | ||
1131 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
8774bed9 | 1132 | video, s_std, std_id); |
7da8a6cb MK |
1133 | if (ret < 0) { |
1134 | v4l2_err(&vpfe_dev->v4l2_dev, "Failed to set standard\n"); | |
1135 | goto unlock_out; | |
1136 | } | |
1137 | ret = vpfe_config_image_format(vpfe_dev, std_id); | |
1138 | ||
1139 | unlock_out: | |
1140 | mutex_unlock(&vpfe_dev->lock); | |
1141 | return ret; | |
1142 | } | |
1143 | ||
1144 | static int vpfe_g_std(struct file *file, void *priv, v4l2_std_id *std_id) | |
1145 | { | |
1146 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1147 | ||
1148 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_std\n"); | |
1149 | ||
1150 | *std_id = vpfe_standards[vpfe_dev->std_index].std_id; | |
1151 | return 0; | |
1152 | } | |
1153 | /* | |
1154 | * Videobuf operations | |
1155 | */ | |
1156 | static int vpfe_videobuf_setup(struct videobuf_queue *vq, | |
1157 | unsigned int *count, | |
1158 | unsigned int *size) | |
1159 | { | |
1160 | struct vpfe_fh *fh = vq->priv_data; | |
1161 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1162 | ||
1163 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_setup\n"); | |
844cc0dc VH |
1164 | *size = vpfe_dev->fmt.fmt.pix.sizeimage; |
1165 | if (vpfe_dev->memory == V4L2_MEMORY_MMAP && | |
1166 | vpfe_dev->fmt.fmt.pix.sizeimage > config_params.device_bufsize) | |
1167 | *size = config_params.device_bufsize; | |
7da8a6cb MK |
1168 | |
1169 | if (*count < config_params.min_numbuffers) | |
1170 | *count = config_params.min_numbuffers; | |
1171 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1172 | "count=%d, size=%d\n", *count, *size); | |
1173 | return 0; | |
1174 | } | |
1175 | ||
1176 | static int vpfe_videobuf_prepare(struct videobuf_queue *vq, | |
1177 | struct videobuf_buffer *vb, | |
1178 | enum v4l2_field field) | |
1179 | { | |
1180 | struct vpfe_fh *fh = vq->priv_data; | |
1181 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
844cc0dc VH |
1182 | unsigned long addr; |
1183 | int ret; | |
7da8a6cb MK |
1184 | |
1185 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_prepare\n"); | |
1186 | ||
1187 | /* If buffer is not initialized, initialize it */ | |
1188 | if (VIDEOBUF_NEEDS_INIT == vb->state) { | |
1189 | vb->width = vpfe_dev->fmt.fmt.pix.width; | |
1190 | vb->height = vpfe_dev->fmt.fmt.pix.height; | |
1191 | vb->size = vpfe_dev->fmt.fmt.pix.sizeimage; | |
1192 | vb->field = field; | |
844cc0dc | 1193 | |
b1dc614a | 1194 | ret = videobuf_iolock(vq, vb, NULL); |
844cc0dc VH |
1195 | if (ret < 0) |
1196 | return ret; | |
1197 | ||
1198 | addr = videobuf_to_dma_contig(vb); | |
1199 | /* Make sure user addresses are aligned to 32 bytes */ | |
1200 | if (!ALIGN(addr, 32)) | |
1201 | return -EINVAL; | |
1202 | ||
1203 | vb->state = VIDEOBUF_PREPARED; | |
7da8a6cb | 1204 | } |
7da8a6cb MK |
1205 | return 0; |
1206 | } | |
1207 | ||
1208 | static void vpfe_videobuf_queue(struct videobuf_queue *vq, | |
1209 | struct videobuf_buffer *vb) | |
1210 | { | |
1211 | /* Get the file handle object and device object */ | |
1212 | struct vpfe_fh *fh = vq->priv_data; | |
1213 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1214 | unsigned long flags; | |
1215 | ||
1216 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_queue\n"); | |
1217 | ||
1218 | /* add the buffer to the DMA queue */ | |
1219 | spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags); | |
1220 | list_add_tail(&vb->queue, &vpfe_dev->dma_queue); | |
1221 | spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags); | |
1222 | ||
1223 | /* Change state of the buffer */ | |
1224 | vb->state = VIDEOBUF_QUEUED; | |
1225 | } | |
1226 | ||
1227 | static void vpfe_videobuf_release(struct videobuf_queue *vq, | |
1228 | struct videobuf_buffer *vb) | |
1229 | { | |
1230 | struct vpfe_fh *fh = vq->priv_data; | |
1231 | struct vpfe_device *vpfe_dev = fh->vpfe_dev; | |
1232 | unsigned long flags; | |
1233 | ||
1234 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_videobuf_release\n"); | |
1235 | ||
1236 | /* | |
1237 | * We need to flush the buffer from the dma queue since | |
1238 | * they are de-allocated | |
1239 | */ | |
1240 | spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags); | |
1241 | INIT_LIST_HEAD(&vpfe_dev->dma_queue); | |
1242 | spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags); | |
1243 | videobuf_dma_contig_free(vq, vb); | |
1244 | vb->state = VIDEOBUF_NEEDS_INIT; | |
1245 | } | |
1246 | ||
bd9f8f75 | 1247 | static const struct videobuf_queue_ops vpfe_videobuf_qops = { |
7da8a6cb MK |
1248 | .buf_setup = vpfe_videobuf_setup, |
1249 | .buf_prepare = vpfe_videobuf_prepare, | |
1250 | .buf_queue = vpfe_videobuf_queue, | |
1251 | .buf_release = vpfe_videobuf_release, | |
1252 | }; | |
1253 | ||
1254 | /* | |
1255 | * vpfe_reqbufs. currently support REQBUF only once opening | |
1256 | * the device. | |
1257 | */ | |
1258 | static int vpfe_reqbufs(struct file *file, void *priv, | |
1259 | struct v4l2_requestbuffers *req_buf) | |
1260 | { | |
1261 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1262 | struct vpfe_fh *fh = file->private_data; | |
2a0de2c8 | 1263 | int ret; |
7da8a6cb MK |
1264 | |
1265 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_reqbufs\n"); | |
1266 | ||
1267 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != req_buf->type) { | |
1268 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buffer type\n"); | |
1269 | return -EINVAL; | |
1270 | } | |
1271 | ||
7da8a6cb MK |
1272 | ret = mutex_lock_interruptible(&vpfe_dev->lock); |
1273 | if (ret) | |
1274 | return ret; | |
1275 | ||
1276 | if (vpfe_dev->io_usrs != 0) { | |
1277 | v4l2_err(&vpfe_dev->v4l2_dev, "Only one IO user allowed\n"); | |
1278 | ret = -EBUSY; | |
1279 | goto unlock_out; | |
1280 | } | |
1281 | ||
1282 | vpfe_dev->memory = req_buf->memory; | |
1283 | videobuf_queue_dma_contig_init(&vpfe_dev->buffer_queue, | |
1284 | &vpfe_videobuf_qops, | |
204e6ea9 | 1285 | vpfe_dev->pdev, |
7da8a6cb MK |
1286 | &vpfe_dev->irqlock, |
1287 | req_buf->type, | |
1288 | vpfe_dev->fmt.fmt.pix.field, | |
1289 | sizeof(struct videobuf_buffer), | |
e3cfd447 | 1290 | fh, NULL); |
7da8a6cb MK |
1291 | |
1292 | fh->io_allowed = 1; | |
1293 | vpfe_dev->io_usrs = 1; | |
1294 | INIT_LIST_HEAD(&vpfe_dev->dma_queue); | |
1295 | ret = videobuf_reqbufs(&vpfe_dev->buffer_queue, req_buf); | |
1296 | unlock_out: | |
1297 | mutex_unlock(&vpfe_dev->lock); | |
1298 | return ret; | |
1299 | } | |
1300 | ||
1301 | static int vpfe_querybuf(struct file *file, void *priv, | |
1302 | struct v4l2_buffer *buf) | |
1303 | { | |
1304 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1305 | ||
1306 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querybuf\n"); | |
1307 | ||
1308 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) { | |
1309 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1310 | return -EINVAL; | |
1311 | } | |
1312 | ||
1313 | if (vpfe_dev->memory != V4L2_MEMORY_MMAP) { | |
1314 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid memory\n"); | |
1315 | return -EINVAL; | |
1316 | } | |
1317 | /* Call videobuf_querybuf to get information */ | |
1318 | return videobuf_querybuf(&vpfe_dev->buffer_queue, buf); | |
1319 | } | |
1320 | ||
1321 | static int vpfe_qbuf(struct file *file, void *priv, | |
1322 | struct v4l2_buffer *p) | |
1323 | { | |
1324 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1325 | struct vpfe_fh *fh = file->private_data; | |
1326 | ||
1327 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_qbuf\n"); | |
1328 | ||
1329 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != p->type) { | |
1330 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1331 | return -EINVAL; | |
1332 | } | |
1333 | ||
1334 | /* | |
1335 | * If this file handle is not allowed to do IO, | |
1336 | * return error | |
1337 | */ | |
1338 | if (!fh->io_allowed) { | |
1339 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1340 | return -EACCES; | |
1341 | } | |
1342 | return videobuf_qbuf(&vpfe_dev->buffer_queue, p); | |
1343 | } | |
1344 | ||
1345 | static int vpfe_dqbuf(struct file *file, void *priv, | |
1346 | struct v4l2_buffer *buf) | |
1347 | { | |
1348 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1349 | ||
1350 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_dqbuf\n"); | |
1351 | ||
1352 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) { | |
1353 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1354 | return -EINVAL; | |
1355 | } | |
1356 | return videobuf_dqbuf(&vpfe_dev->buffer_queue, | |
1357 | buf, file->f_flags & O_NONBLOCK); | |
1358 | } | |
1359 | ||
1360 | /* | |
1361 | * vpfe_calculate_offsets : This function calculates buffers offset | |
1362 | * for top and bottom field | |
1363 | */ | |
1364 | static void vpfe_calculate_offsets(struct vpfe_device *vpfe_dev) | |
1365 | { | |
1366 | struct v4l2_rect image_win; | |
1367 | ||
1368 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_calculate_offsets\n"); | |
1369 | ||
1370 | ccdc_dev->hw_ops.get_image_window(&image_win); | |
1371 | vpfe_dev->field_off = image_win.height * image_win.width; | |
1372 | } | |
1373 | ||
1374 | /* vpfe_start_ccdc_capture: start streaming in ccdc/isif */ | |
1375 | static void vpfe_start_ccdc_capture(struct vpfe_device *vpfe_dev) | |
1376 | { | |
1377 | ccdc_dev->hw_ops.enable(1); | |
1378 | if (ccdc_dev->hw_ops.enable_out_to_sdram) | |
1379 | ccdc_dev->hw_ops.enable_out_to_sdram(1); | |
1380 | vpfe_dev->started = 1; | |
1381 | } | |
1382 | ||
1383 | /* | |
1384 | * vpfe_streamon. Assume the DMA queue is not empty. | |
1385 | * application is expected to call QBUF before calling | |
1386 | * this ioctl. If not, driver returns error | |
1387 | */ | |
1388 | static int vpfe_streamon(struct file *file, void *priv, | |
1389 | enum v4l2_buf_type buf_type) | |
1390 | { | |
1391 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1392 | struct vpfe_fh *fh = file->private_data; | |
1393 | struct vpfe_subdev_info *sdinfo; | |
1394 | unsigned long addr; | |
2a0de2c8 | 1395 | int ret; |
7da8a6cb MK |
1396 | |
1397 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamon\n"); | |
1398 | ||
1399 | if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) { | |
1400 | v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n"); | |
1401 | return -EINVAL; | |
1402 | } | |
1403 | ||
1404 | /* If file handle is not allowed IO, return error */ | |
1405 | if (!fh->io_allowed) { | |
1406 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1407 | return -EACCES; | |
1408 | } | |
1409 | ||
1410 | sdinfo = vpfe_dev->current_subdev; | |
1411 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1412 | video, s_stream, 1); | |
1413 | ||
1414 | if (ret && (ret != -ENOIOCTLCMD)) { | |
1415 | v4l2_err(&vpfe_dev->v4l2_dev, "stream on failed in subdev\n"); | |
1416 | return -EINVAL; | |
1417 | } | |
1418 | ||
1419 | /* If buffer queue is empty, return error */ | |
1420 | if (list_empty(&vpfe_dev->buffer_queue.stream)) { | |
1421 | v4l2_err(&vpfe_dev->v4l2_dev, "buffer queue is empty\n"); | |
1422 | return -EIO; | |
1423 | } | |
1424 | ||
1425 | /* Call videobuf_streamon to start streaming * in videobuf */ | |
1426 | ret = videobuf_streamon(&vpfe_dev->buffer_queue); | |
1427 | if (ret) | |
1428 | return ret; | |
1429 | ||
1430 | ||
1431 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1432 | if (ret) | |
1433 | goto streamoff; | |
1434 | /* Get the next frame from the buffer queue */ | |
1435 | vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next, | |
1436 | struct videobuf_buffer, queue); | |
1437 | vpfe_dev->cur_frm = vpfe_dev->next_frm; | |
1438 | /* Remove buffer from the buffer queue */ | |
1439 | list_del(&vpfe_dev->cur_frm->queue); | |
1440 | /* Mark state of the current frame to active */ | |
1441 | vpfe_dev->cur_frm->state = VIDEOBUF_ACTIVE; | |
1442 | /* Initialize field_id and started member */ | |
1443 | vpfe_dev->field_id = 0; | |
1444 | addr = videobuf_to_dma_contig(vpfe_dev->cur_frm); | |
1445 | ||
1446 | /* Calculate field offset */ | |
1447 | vpfe_calculate_offsets(vpfe_dev); | |
1448 | ||
1449 | if (vpfe_attach_irq(vpfe_dev) < 0) { | |
1450 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1451 | "Error in attaching interrupt handle\n"); | |
1452 | ret = -EFAULT; | |
1453 | goto unlock_out; | |
1454 | } | |
1455 | if (ccdc_dev->hw_ops.configure() < 0) { | |
1456 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1457 | "Error in configuring ccdc\n"); | |
1458 | ret = -EINVAL; | |
1459 | goto unlock_out; | |
1460 | } | |
1461 | ccdc_dev->hw_ops.setfbaddr((unsigned long)(addr)); | |
1462 | vpfe_start_ccdc_capture(vpfe_dev); | |
1463 | mutex_unlock(&vpfe_dev->lock); | |
1464 | return ret; | |
1465 | unlock_out: | |
1466 | mutex_unlock(&vpfe_dev->lock); | |
1467 | streamoff: | |
366b4010 | 1468 | videobuf_streamoff(&vpfe_dev->buffer_queue); |
7da8a6cb MK |
1469 | return ret; |
1470 | } | |
1471 | ||
1472 | static int vpfe_streamoff(struct file *file, void *priv, | |
1473 | enum v4l2_buf_type buf_type) | |
1474 | { | |
1475 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1476 | struct vpfe_fh *fh = file->private_data; | |
1477 | struct vpfe_subdev_info *sdinfo; | |
2a0de2c8 | 1478 | int ret; |
7da8a6cb MK |
1479 | |
1480 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamoff\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 io is allowed for this file handle, return error */ | |
1488 | if (!fh->io_allowed) { | |
1489 | v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n"); | |
1490 | return -EACCES; | |
1491 | } | |
1492 | ||
1493 | /* If streaming is not started, return error */ | |
1494 | if (!vpfe_dev->started) { | |
1495 | v4l2_err(&vpfe_dev->v4l2_dev, "device started\n"); | |
1496 | return -EINVAL; | |
1497 | } | |
1498 | ||
1499 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1500 | if (ret) | |
1501 | return ret; | |
1502 | ||
1503 | vpfe_stop_ccdc_capture(vpfe_dev); | |
1504 | vpfe_detach_irq(vpfe_dev); | |
1505 | ||
1506 | sdinfo = vpfe_dev->current_subdev; | |
1507 | ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id, | |
1508 | video, s_stream, 0); | |
1509 | ||
1510 | if (ret && (ret != -ENOIOCTLCMD)) | |
1511 | v4l2_err(&vpfe_dev->v4l2_dev, "stream off failed in subdev\n"); | |
1512 | ret = videobuf_streamoff(&vpfe_dev->buffer_queue); | |
1513 | mutex_unlock(&vpfe_dev->lock); | |
1514 | return ret; | |
1515 | } | |
1516 | ||
5200ab6a HV |
1517 | static int vpfe_g_pixelaspect(struct file *file, void *priv, |
1518 | int type, struct v4l2_fract *f) | |
7da8a6cb MK |
1519 | { |
1520 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1521 | ||
5200ab6a | 1522 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_pixelaspect\n"); |
7da8a6cb | 1523 | |
5200ab6a | 1524 | if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
7da8a6cb | 1525 | return -EINVAL; |
ffc2a6bb HV |
1526 | /* If std_index is invalid, then just return (== 1:1 aspect) */ |
1527 | if (vpfe_dev->std_index >= ARRAY_SIZE(vpfe_standards)) | |
1528 | return 0; | |
7da8a6cb | 1529 | |
5200ab6a | 1530 | *f = vpfe_standards[vpfe_dev->std_index].pixelaspect; |
7da8a6cb MK |
1531 | return 0; |
1532 | } | |
1533 | ||
ffc2a6bb HV |
1534 | static int vpfe_g_selection(struct file *file, void *priv, |
1535 | struct v4l2_selection *sel) | |
7da8a6cb MK |
1536 | { |
1537 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
1538 | ||
ffc2a6bb | 1539 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_selection\n"); |
7da8a6cb | 1540 | |
ffc2a6bb HV |
1541 | if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
1542 | return -EINVAL; | |
1543 | ||
1544 | switch (sel->target) { | |
1545 | case V4L2_SEL_TGT_CROP: | |
1546 | sel->r = vpfe_dev->crop; | |
1547 | break; | |
1548 | case V4L2_SEL_TGT_CROP_DEFAULT: | |
1549 | case V4L2_SEL_TGT_CROP_BOUNDS: | |
1550 | sel->r.width = vpfe_standards[vpfe_dev->std_index].width; | |
1551 | sel->r.height = vpfe_standards[vpfe_dev->std_index].height; | |
1552 | break; | |
1553 | default: | |
1554 | return -EINVAL; | |
1555 | } | |
7da8a6cb MK |
1556 | return 0; |
1557 | } | |
1558 | ||
ffc2a6bb HV |
1559 | static int vpfe_s_selection(struct file *file, void *priv, |
1560 | struct v4l2_selection *sel) | |
7da8a6cb MK |
1561 | { |
1562 | struct vpfe_device *vpfe_dev = video_drvdata(file); | |
ffc2a6bb | 1563 | struct v4l2_rect rect = sel->r; |
2a0de2c8 | 1564 | int ret; |
7da8a6cb | 1565 | |
ffc2a6bb HV |
1566 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_selection\n"); |
1567 | ||
1568 | if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1569 | sel->target != V4L2_SEL_TGT_CROP) | |
1570 | return -EINVAL; | |
7da8a6cb MK |
1571 | |
1572 | if (vpfe_dev->started) { | |
1573 | /* make sure streaming is not started */ | |
1574 | v4l2_err(&vpfe_dev->v4l2_dev, | |
1575 | "Cannot change crop when streaming is ON\n"); | |
1576 | return -EBUSY; | |
1577 | } | |
1578 | ||
1579 | ret = mutex_lock_interruptible(&vpfe_dev->lock); | |
1580 | if (ret) | |
1581 | return ret; | |
1582 | ||
8b6faacd | 1583 | if (rect.top < 0 || rect.left < 0) { |
7da8a6cb MK |
1584 | v4l2_err(&vpfe_dev->v4l2_dev, |
1585 | "doesn't support negative values for top & left\n"); | |
1586 | ret = -EINVAL; | |
1587 | goto unlock_out; | |
1588 | } | |
1589 | ||
25985edc | 1590 | /* adjust the width to 16 pixel boundary */ |
8b6faacd | 1591 | rect.width = ((rect.width + 15) & ~0xf); |
7da8a6cb MK |
1592 | |
1593 | /* make sure parameters are valid */ | |
8b6faacd | 1594 | if ((rect.left + rect.width > |
7da8a6cb | 1595 | vpfe_dev->std_info.active_pixels) || |
8b6faacd | 1596 | (rect.top + rect.height > |
7da8a6cb | 1597 | vpfe_dev->std_info.active_lines)) { |
ffc2a6bb | 1598 | v4l2_err(&vpfe_dev->v4l2_dev, "Error in S_SELECTION params\n"); |
7da8a6cb MK |
1599 | ret = -EINVAL; |
1600 | goto unlock_out; | |
1601 | } | |
8b6faacd LP |
1602 | ccdc_dev->hw_ops.set_image_window(&rect); |
1603 | vpfe_dev->fmt.fmt.pix.width = rect.width; | |
1604 | vpfe_dev->fmt.fmt.pix.height = rect.height; | |
7da8a6cb MK |
1605 | vpfe_dev->fmt.fmt.pix.bytesperline = |
1606 | ccdc_dev->hw_ops.get_line_length(); | |
1607 | vpfe_dev->fmt.fmt.pix.sizeimage = | |
1608 | vpfe_dev->fmt.fmt.pix.bytesperline * | |
1609 | vpfe_dev->fmt.fmt.pix.height; | |
8b6faacd | 1610 | vpfe_dev->crop = rect; |
ffc2a6bb | 1611 | sel->r = rect; |
7da8a6cb MK |
1612 | unlock_out: |
1613 | mutex_unlock(&vpfe_dev->lock); | |
1614 | return ret; | |
1615 | } | |
1616 | ||
7da8a6cb MK |
1617 | /* vpfe capture ioctl operations */ |
1618 | static const struct v4l2_ioctl_ops vpfe_ioctl_ops = { | |
1619 | .vidioc_querycap = vpfe_querycap, | |
1620 | .vidioc_g_fmt_vid_cap = vpfe_g_fmt_vid_cap, | |
1621 | .vidioc_enum_fmt_vid_cap = vpfe_enum_fmt_vid_cap, | |
1622 | .vidioc_s_fmt_vid_cap = vpfe_s_fmt_vid_cap, | |
1623 | .vidioc_try_fmt_vid_cap = vpfe_try_fmt_vid_cap, | |
1624 | .vidioc_enum_input = vpfe_enum_input, | |
1625 | .vidioc_g_input = vpfe_g_input, | |
1626 | .vidioc_s_input = vpfe_s_input, | |
1627 | .vidioc_querystd = vpfe_querystd, | |
1628 | .vidioc_s_std = vpfe_s_std, | |
1629 | .vidioc_g_std = vpfe_g_std, | |
1630 | .vidioc_reqbufs = vpfe_reqbufs, | |
1631 | .vidioc_querybuf = vpfe_querybuf, | |
1632 | .vidioc_qbuf = vpfe_qbuf, | |
1633 | .vidioc_dqbuf = vpfe_dqbuf, | |
1634 | .vidioc_streamon = vpfe_streamon, | |
1635 | .vidioc_streamoff = vpfe_streamoff, | |
5200ab6a | 1636 | .vidioc_g_pixelaspect = vpfe_g_pixelaspect, |
ffc2a6bb HV |
1637 | .vidioc_g_selection = vpfe_g_selection, |
1638 | .vidioc_s_selection = vpfe_s_selection, | |
7da8a6cb MK |
1639 | }; |
1640 | ||
1641 | static struct vpfe_device *vpfe_initialize(void) | |
1642 | { | |
1643 | struct vpfe_device *vpfe_dev; | |
1644 | ||
1645 | /* Default number of buffers should be 3 */ | |
1646 | if ((numbuffers > 0) && | |
1647 | (numbuffers < config_params.min_numbuffers)) | |
1648 | numbuffers = config_params.min_numbuffers; | |
1649 | ||
1650 | /* | |
1651 | * Set buffer size to min buffers size if invalid buffer size is | |
1652 | * given | |
1653 | */ | |
1654 | if (bufsize < config_params.min_bufsize) | |
1655 | bufsize = config_params.min_bufsize; | |
1656 | ||
1657 | config_params.numbuffers = numbuffers; | |
1658 | ||
1659 | if (numbuffers) | |
1660 | config_params.device_bufsize = bufsize; | |
1661 | ||
1662 | /* Allocate memory for device objects */ | |
1663 | vpfe_dev = kzalloc(sizeof(*vpfe_dev), GFP_KERNEL); | |
1664 | ||
1665 | return vpfe_dev; | |
1666 | } | |
1667 | ||
7da8a6cb MK |
1668 | /* |
1669 | * vpfe_probe : This function creates device entries by register | |
1670 | * itself to the V4L2 driver and initializes fields of each | |
1671 | * device objects | |
1672 | */ | |
4c62e976 | 1673 | static int vpfe_probe(struct platform_device *pdev) |
7da8a6cb MK |
1674 | { |
1675 | struct vpfe_subdev_info *sdinfo; | |
1676 | struct vpfe_config *vpfe_cfg; | |
1677 | struct resource *res1; | |
1678 | struct vpfe_device *vpfe_dev; | |
1679 | struct i2c_adapter *i2c_adap; | |
1680 | struct video_device *vfd; | |
efb74461 | 1681 | int ret, i, j; |
7da8a6cb MK |
1682 | int num_subdevs = 0; |
1683 | ||
1684 | /* Get the pointer to the device object */ | |
1685 | vpfe_dev = vpfe_initialize(); | |
1686 | ||
1687 | if (!vpfe_dev) { | |
1688 | v4l2_err(pdev->dev.driver, | |
1689 | "Failed to allocate memory for vpfe_dev\n"); | |
efb74461 | 1690 | return -ENOMEM; |
7da8a6cb MK |
1691 | } |
1692 | ||
1693 | vpfe_dev->pdev = &pdev->dev; | |
1694 | ||
c580f295 | 1695 | if (!pdev->dev.platform_data) { |
7da8a6cb | 1696 | v4l2_err(pdev->dev.driver, "Unable to get vpfe config\n"); |
51444ea3 | 1697 | ret = -ENODEV; |
7da8a6cb MK |
1698 | goto probe_free_dev_mem; |
1699 | } | |
1700 | ||
1701 | vpfe_cfg = pdev->dev.platform_data; | |
1702 | vpfe_dev->cfg = vpfe_cfg; | |
c580f295 | 1703 | if (!vpfe_cfg->ccdc || !vpfe_cfg->card_name || !vpfe_cfg->sub_devs) { |
7da8a6cb MK |
1704 | v4l2_err(pdev->dev.driver, "null ptr in vpfe_cfg\n"); |
1705 | ret = -ENOENT; | |
1706 | goto probe_free_dev_mem; | |
1707 | } | |
1708 | ||
7da8a6cb | 1709 | /* Allocate memory for ccdc configuration */ |
e4c0cd0a | 1710 | ccdc_cfg = kmalloc(sizeof(*ccdc_cfg), GFP_KERNEL); |
1827bdc7 HV |
1711 | if (!ccdc_cfg) { |
1712 | ret = -ENOMEM; | |
39e219d9 | 1713 | goto probe_free_dev_mem; |
1827bdc7 | 1714 | } |
7da8a6cb | 1715 | |
2b080c5d DC |
1716 | mutex_lock(&ccdc_lock); |
1717 | ||
85709cbf | 1718 | strscpy(ccdc_cfg->name, vpfe_cfg->ccdc, sizeof(ccdc_cfg->name)); |
7da8a6cb MK |
1719 | /* Get VINT0 irq resource */ |
1720 | res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 0); | |
1721 | if (!res1) { | |
1722 | v4l2_err(pdev->dev.driver, | |
1723 | "Unable to get interrupt for VINT0\n"); | |
51444ea3 MK |
1724 | ret = -ENODEV; |
1725 | goto probe_free_ccdc_cfg_mem; | |
7da8a6cb MK |
1726 | } |
1727 | vpfe_dev->ccdc_irq0 = res1->start; | |
1728 | ||
1729 | /* Get VINT1 irq resource */ | |
51444ea3 | 1730 | res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 1); |
7da8a6cb MK |
1731 | if (!res1) { |
1732 | v4l2_err(pdev->dev.driver, | |
1733 | "Unable to get interrupt for VINT1\n"); | |
51444ea3 MK |
1734 | ret = -ENODEV; |
1735 | goto probe_free_ccdc_cfg_mem; | |
7da8a6cb MK |
1736 | } |
1737 | vpfe_dev->ccdc_irq1 = res1->start; | |
1738 | ||
d8c279a0 | 1739 | ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, 0, |
7da8a6cb MK |
1740 | "vpfe_capture0", vpfe_dev); |
1741 | ||
1742 | if (0 != ret) { | |
1743 | v4l2_err(pdev->dev.driver, "Unable to request interrupt\n"); | |
51444ea3 | 1744 | goto probe_free_ccdc_cfg_mem; |
7da8a6cb MK |
1745 | } |
1746 | ||
03c278f0 | 1747 | vfd = &vpfe_dev->video_dev; |
7da8a6cb | 1748 | /* Initialize field of video device */ |
03c278f0 | 1749 | vfd->release = video_device_release_empty; |
7da8a6cb MK |
1750 | vfd->fops = &vpfe_fops; |
1751 | vfd->ioctl_ops = &vpfe_ioctl_ops; | |
7da8a6cb | 1752 | vfd->tvnorms = 0; |
6e6a8b5a | 1753 | vfd->v4l2_dev = &vpfe_dev->v4l2_dev; |
b2778a30 | 1754 | vfd->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; |
7da8a6cb MK |
1755 | snprintf(vfd->name, sizeof(vfd->name), |
1756 | "%s_V%d.%d.%d", | |
1757 | CAPTURE_DRV_NAME, | |
1758 | (VPFE_CAPTURE_VERSION_CODE >> 16) & 0xff, | |
1759 | (VPFE_CAPTURE_VERSION_CODE >> 8) & 0xff, | |
1760 | (VPFE_CAPTURE_VERSION_CODE) & 0xff); | |
7da8a6cb MK |
1761 | |
1762 | ret = v4l2_device_register(&pdev->dev, &vpfe_dev->v4l2_dev); | |
1763 | if (ret) { | |
1764 | v4l2_err(pdev->dev.driver, | |
1765 | "Unable to register v4l2 device.\n"); | |
03c278f0 | 1766 | goto probe_out_release_irq; |
7da8a6cb MK |
1767 | } |
1768 | v4l2_info(&vpfe_dev->v4l2_dev, "v4l2 device registered\n"); | |
1769 | spin_lock_init(&vpfe_dev->irqlock); | |
1770 | spin_lock_init(&vpfe_dev->dma_queue_lock); | |
1771 | mutex_init(&vpfe_dev->lock); | |
1772 | ||
1773 | /* Initialize field of the device objects */ | |
1774 | vpfe_dev->numbuffers = config_params.numbuffers; | |
1775 | ||
7da8a6cb MK |
1776 | /* register video device */ |
1777 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
1778 | "trying to register vpfe device.\n"); | |
1779 | v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, | |
212bdba3 | 1780 | "video_dev=%p\n", &vpfe_dev->video_dev); |
7da8a6cb | 1781 | vpfe_dev->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
03c278f0 | 1782 | ret = video_register_device(&vpfe_dev->video_dev, |
70cad449 | 1783 | VFL_TYPE_VIDEO, -1); |
7da8a6cb MK |
1784 | |
1785 | if (ret) { | |
1786 | v4l2_err(pdev->dev.driver, | |
1787 | "Unable to register video device.\n"); | |
1788 | goto probe_out_v4l2_unregister; | |
1789 | } | |
1790 | ||
1791 | v4l2_info(&vpfe_dev->v4l2_dev, "video device registered\n"); | |
1792 | /* set the driver data in platform device */ | |
1793 | platform_set_drvdata(pdev, vpfe_dev); | |
1794 | /* set driver private data */ | |
03c278f0 | 1795 | video_set_drvdata(&vpfe_dev->video_dev, vpfe_dev); |
14cbaafe | 1796 | i2c_adap = i2c_get_adapter(vpfe_cfg->i2c_adapter_id); |
7da8a6cb | 1797 | num_subdevs = vpfe_cfg->num_subdevs; |
ed011a23 ME |
1798 | vpfe_dev->sd = kmalloc_array(num_subdevs, |
1799 | sizeof(*vpfe_dev->sd), | |
1800 | GFP_KERNEL); | |
c580f295 | 1801 | if (!vpfe_dev->sd) { |
7da8a6cb MK |
1802 | ret = -ENOMEM; |
1803 | goto probe_out_video_unregister; | |
1804 | } | |
1805 | ||
1806 | for (i = 0; i < num_subdevs; i++) { | |
1807 | struct v4l2_input *inps; | |
1808 | ||
1809 | sdinfo = &vpfe_cfg->sub_devs[i]; | |
1810 | ||
1811 | /* Load up the subdevice */ | |
1812 | vpfe_dev->sd[i] = | |
1813 | v4l2_i2c_new_subdev_board(&vpfe_dev->v4l2_dev, | |
1814 | i2c_adap, | |
7da8a6cb MK |
1815 | &sdinfo->board_info, |
1816 | NULL); | |
1817 | if (vpfe_dev->sd[i]) { | |
1818 | v4l2_info(&vpfe_dev->v4l2_dev, | |
1819 | "v4l2 sub device %s registered\n", | |
1820 | sdinfo->name); | |
1821 | vpfe_dev->sd[i]->grp_id = sdinfo->grp_id; | |
1822 | /* update tvnorms from the sub devices */ | |
1823 | for (j = 0; j < sdinfo->num_inputs; j++) { | |
1824 | inps = &sdinfo->inputs[j]; | |
1825 | vfd->tvnorms |= inps->std; | |
1826 | } | |
1827 | } else { | |
1828 | v4l2_info(&vpfe_dev->v4l2_dev, | |
1829 | "v4l2 sub device %s register fails\n", | |
1830 | sdinfo->name); | |
d3d83ee2 | 1831 | ret = -ENXIO; |
7da8a6cb MK |
1832 | goto probe_sd_out; |
1833 | } | |
1834 | } | |
1835 | ||
1836 | /* set first sub device as current one */ | |
1837 | vpfe_dev->current_subdev = &vpfe_cfg->sub_devs[0]; | |
6f55dbae | 1838 | vpfe_dev->v4l2_dev.ctrl_handler = vpfe_dev->sd[0]->ctrl_handler; |
7da8a6cb MK |
1839 | |
1840 | /* We have at least one sub device to work with */ | |
1841 | mutex_unlock(&ccdc_lock); | |
1842 | return 0; | |
1843 | ||
1844 | probe_sd_out: | |
1845 | kfree(vpfe_dev->sd); | |
1846 | probe_out_video_unregister: | |
03c278f0 | 1847 | video_unregister_device(&vpfe_dev->video_dev); |
7da8a6cb MK |
1848 | probe_out_v4l2_unregister: |
1849 | v4l2_device_unregister(&vpfe_dev->v4l2_dev); | |
7da8a6cb MK |
1850 | probe_out_release_irq: |
1851 | free_irq(vpfe_dev->ccdc_irq0, vpfe_dev); | |
51444ea3 | 1852 | probe_free_ccdc_cfg_mem: |
7da8a6cb | 1853 | kfree(ccdc_cfg); |
ab51bec1 | 1854 | mutex_unlock(&ccdc_lock); |
7da8a6cb MK |
1855 | probe_free_dev_mem: |
1856 | kfree(vpfe_dev); | |
1857 | return ret; | |
1858 | } | |
1859 | ||
1860 | /* | |
1861 | * vpfe_remove : It un-register device from V4L2 driver | |
1862 | */ | |
4c62e976 | 1863 | static int vpfe_remove(struct platform_device *pdev) |
7da8a6cb MK |
1864 | { |
1865 | struct vpfe_device *vpfe_dev = platform_get_drvdata(pdev); | |
7da8a6cb MK |
1866 | |
1867 | v4l2_info(pdev->dev.driver, "vpfe_remove\n"); | |
1868 | ||
1869 | free_irq(vpfe_dev->ccdc_irq0, vpfe_dev); | |
1870 | kfree(vpfe_dev->sd); | |
1871 | v4l2_device_unregister(&vpfe_dev->v4l2_dev); | |
03c278f0 | 1872 | video_unregister_device(&vpfe_dev->video_dev); |
7da8a6cb MK |
1873 | kfree(vpfe_dev); |
1874 | kfree(ccdc_cfg); | |
1875 | return 0; | |
1876 | } | |
1877 | ||
aa2dc903 | 1878 | static int vpfe_suspend(struct device *dev) |
7da8a6cb | 1879 | { |
aa2dc903 | 1880 | return 0; |
7da8a6cb MK |
1881 | } |
1882 | ||
aa2dc903 | 1883 | static int vpfe_resume(struct device *dev) |
7da8a6cb | 1884 | { |
aa2dc903 | 1885 | return 0; |
7da8a6cb MK |
1886 | } |
1887 | ||
47145210 | 1888 | static const struct dev_pm_ops vpfe_dev_pm_ops = { |
7da8a6cb MK |
1889 | .suspend = vpfe_suspend, |
1890 | .resume = vpfe_resume, | |
1891 | }; | |
1892 | ||
a1b3a6ce | 1893 | static struct platform_driver vpfe_driver = { |
7da8a6cb MK |
1894 | .driver = { |
1895 | .name = CAPTURE_DRV_NAME, | |
7da8a6cb MK |
1896 | .pm = &vpfe_dev_pm_ops, |
1897 | }, | |
1898 | .probe = vpfe_probe, | |
4c62e976 | 1899 | .remove = vpfe_remove, |
7da8a6cb MK |
1900 | }; |
1901 | ||
1d6629b1 | 1902 | module_platform_driver(vpfe_driver); |