This source file includes following definitions.
- find_format_by_code
- find_format_by_pix
- mbus_to_pix
- pix_to_mbus
- print_fourcc
- cmp_v4l2_format
- vpfe_reg_read
- vpfe_reg_write
- to_vpfe
- to_vpfe_buffer
- vpfe_pcr_enable
- vpfe_config_enable
- vpfe_ccdc_setwin
- vpfe_reg_dump
- vpfe_ccdc_validate_param
- vpfe_ccdc_update_raw_params
- vpfe_ccdc_restore_defaults
- vpfe_ccdc_close
- vpfe_ccdc_set_params
- vpfe_ccdc_config_ycbcr
- vpfe_ccdc_config_black_clamp
- vpfe_ccdc_config_black_compense
- vpfe_ccdc_config_raw
- vpfe_ccdc_set_buftype
- vpfe_ccdc_get_buftype
- vpfe_ccdc_set_pixel_format
- vpfe_ccdc_get_pixel_format
- vpfe_ccdc_set_image_window
- vpfe_ccdc_get_image_window
- vpfe_ccdc_get_line_length
- vpfe_ccdc_set_frame_format
- vpfe_ccdc_get_frame_format
- vpfe_ccdc_getfid
- vpfe_set_sdr_addr
- vpfe_ccdc_set_hw_if_params
- vpfe_clear_intr
- vpfe_ccdc_config_defaults
- vpfe_get_ccdc_image_format
- vpfe_config_ccdc_image_format
- vpfe_config_image_format
- vpfe_initialize_device
- vpfe_release
- vpfe_open
- vpfe_schedule_next_buffer
- vpfe_schedule_bottom_field
- vpfe_process_buffer_complete
- vpfe_isr
- vpfe_detach_irq
- vpfe_attach_irq
- vpfe_querycap
- __vpfe_get_format
- __vpfe_set_format
- vpfe_g_fmt
- vpfe_enum_fmt
- vpfe_try_fmt
- vpfe_s_fmt
- vpfe_enum_size
- vpfe_get_subdev_input_index
- vpfe_get_app_input_index
- vpfe_enum_input
- vpfe_g_input
- vpfe_set_input
- vpfe_s_input
- vpfe_querystd
- vpfe_s_std
- vpfe_g_std
- vpfe_calculate_offsets
- vpfe_queue_setup
- vpfe_buffer_prepare
- vpfe_buffer_queue
- vpfe_start_streaming
- vpfe_stop_streaming
- vpfe_g_pixelaspect
- vpfe_g_selection
- enclosed_rectangle
- vpfe_s_selection
- vpfe_ioctl_default
- vpfe_async_bound
- vpfe_probe_complete
- vpfe_async_complete
- vpfe_get_pdata
- vpfe_probe
- vpfe_remove
- vpfe_save_context
- vpfe_suspend
- vpfe_restore_context
- vpfe_resume
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23 #include <linux/delay.h>
24 #include <linux/err.h>
25 #include <linux/init.h>
26 #include <linux/interrupt.h>
27 #include <linux/io.h>
28 #include <linux/module.h>
29 #include <linux/of_graph.h>
30 #include <linux/pinctrl/consumer.h>
31 #include <linux/platform_device.h>
32 #include <linux/pm_runtime.h>
33 #include <linux/slab.h>
34 #include <linux/uaccess.h>
35 #include <linux/videodev2.h>
36
37 #include <media/v4l2-common.h>
38 #include <media/v4l2-ctrls.h>
39 #include <media/v4l2-event.h>
40 #include <media/v4l2-fwnode.h>
41
42 #include "am437x-vpfe.h"
43
44 #define VPFE_MODULE_NAME "vpfe"
45 #define VPFE_VERSION "0.1.0"
46
47 static int debug;
48 module_param(debug, int, 0644);
49 MODULE_PARM_DESC(debug, "Debug level 0-8");
50
51 #define vpfe_dbg(level, dev, fmt, arg...) \
52 v4l2_dbg(level, debug, &dev->v4l2_dev, fmt, ##arg)
53 #define vpfe_info(dev, fmt, arg...) \
54 v4l2_info(&dev->v4l2_dev, fmt, ##arg)
55 #define vpfe_err(dev, fmt, arg...) \
56 v4l2_err(&dev->v4l2_dev, fmt, ##arg)
57
58
59 struct vpfe_standard {
60 v4l2_std_id std_id;
61 unsigned int width;
62 unsigned int height;
63 struct v4l2_fract pixelaspect;
64 int frame_format;
65 };
66
67 static const struct vpfe_standard vpfe_standards[] = {
68 {V4L2_STD_525_60, 720, 480, {11, 10}, 1},
69 {V4L2_STD_625_50, 720, 576, {54, 59}, 1},
70 };
71
72 struct bus_format {
73 unsigned int width;
74 unsigned int bpp;
75 };
76
77
78
79
80
81
82
83
84
85
86
87 struct vpfe_fmt {
88 u32 fourcc;
89 u32 code;
90 struct bus_format l;
91 struct bus_format s;
92 bool supported;
93 u32 index;
94 };
95
96 static struct vpfe_fmt formats[] = {
97 {
98 .fourcc = V4L2_PIX_FMT_YUYV,
99 .code = MEDIA_BUS_FMT_YUYV8_2X8,
100 .l.width = 10,
101 .l.bpp = 4,
102 .s.width = 8,
103 .s.bpp = 2,
104 .supported = false,
105 }, {
106 .fourcc = V4L2_PIX_FMT_UYVY,
107 .code = MEDIA_BUS_FMT_UYVY8_2X8,
108 .l.width = 10,
109 .l.bpp = 4,
110 .s.width = 8,
111 .s.bpp = 2,
112 .supported = false,
113 }, {
114 .fourcc = V4L2_PIX_FMT_YVYU,
115 .code = MEDIA_BUS_FMT_YVYU8_2X8,
116 .l.width = 10,
117 .l.bpp = 4,
118 .s.width = 8,
119 .s.bpp = 2,
120 .supported = false,
121 }, {
122 .fourcc = V4L2_PIX_FMT_VYUY,
123 .code = MEDIA_BUS_FMT_VYUY8_2X8,
124 .l.width = 10,
125 .l.bpp = 4,
126 .s.width = 8,
127 .s.bpp = 2,
128 .supported = false,
129 }, {
130 .fourcc = V4L2_PIX_FMT_SBGGR8,
131 .code = MEDIA_BUS_FMT_SBGGR8_1X8,
132 .l.width = 10,
133 .l.bpp = 2,
134 .s.width = 8,
135 .s.bpp = 1,
136 .supported = false,
137 }, {
138 .fourcc = V4L2_PIX_FMT_SGBRG8,
139 .code = MEDIA_BUS_FMT_SGBRG8_1X8,
140 .l.width = 10,
141 .l.bpp = 2,
142 .s.width = 8,
143 .s.bpp = 1,
144 .supported = false,
145 }, {
146 .fourcc = V4L2_PIX_FMT_SGRBG8,
147 .code = MEDIA_BUS_FMT_SGRBG8_1X8,
148 .l.width = 10,
149 .l.bpp = 2,
150 .s.width = 8,
151 .s.bpp = 1,
152 .supported = false,
153 }, {
154 .fourcc = V4L2_PIX_FMT_SRGGB8,
155 .code = MEDIA_BUS_FMT_SRGGB8_1X8,
156 .l.width = 10,
157 .l.bpp = 2,
158 .s.width = 8,
159 .s.bpp = 1,
160 .supported = false,
161 }, {
162 .fourcc = V4L2_PIX_FMT_RGB565,
163 .code = MEDIA_BUS_FMT_RGB565_2X8_LE,
164 .l.width = 10,
165 .l.bpp = 4,
166 .s.width = 8,
167 .s.bpp = 2,
168 .supported = false,
169 }, {
170 .fourcc = V4L2_PIX_FMT_RGB565X,
171 .code = MEDIA_BUS_FMT_RGB565_2X8_BE,
172 .l.width = 10,
173 .l.bpp = 4,
174 .s.width = 8,
175 .s.bpp = 2,
176 .supported = false,
177 },
178 };
179
180 static int
181 __vpfe_get_format(struct vpfe_device *vpfe,
182 struct v4l2_format *format, unsigned int *bpp);
183
184 static struct vpfe_fmt *find_format_by_code(unsigned int code)
185 {
186 struct vpfe_fmt *fmt;
187 unsigned int k;
188
189 for (k = 0; k < ARRAY_SIZE(formats); k++) {
190 fmt = &formats[k];
191 if (fmt->code == code)
192 return fmt;
193 }
194
195 return NULL;
196 }
197
198 static struct vpfe_fmt *find_format_by_pix(unsigned int pixelformat)
199 {
200 struct vpfe_fmt *fmt;
201 unsigned int k;
202
203 for (k = 0; k < ARRAY_SIZE(formats); k++) {
204 fmt = &formats[k];
205 if (fmt->fourcc == pixelformat)
206 return fmt;
207 }
208
209 return NULL;
210 }
211
212 static void
213 mbus_to_pix(struct vpfe_device *vpfe,
214 const struct v4l2_mbus_framefmt *mbus,
215 struct v4l2_pix_format *pix, unsigned int *bpp)
216 {
217 struct vpfe_subdev_info *sdinfo = vpfe->current_subdev;
218 unsigned int bus_width = sdinfo->vpfe_param.bus_width;
219 struct vpfe_fmt *fmt;
220
221 fmt = find_format_by_code(mbus->code);
222 if (WARN_ON(fmt == NULL)) {
223 pr_err("Invalid mbus code set\n");
224 *bpp = 1;
225 return;
226 }
227
228 memset(pix, 0, sizeof(*pix));
229 v4l2_fill_pix_format(pix, mbus);
230 pix->pixelformat = fmt->fourcc;
231 *bpp = (bus_width == 10) ? fmt->l.bpp : fmt->s.bpp;
232
233
234 pix->bytesperline = ALIGN(pix->width * *bpp, 32);
235 pix->sizeimage = pix->bytesperline * pix->height;
236 }
237
238 static void pix_to_mbus(struct vpfe_device *vpfe,
239 struct v4l2_pix_format *pix_fmt,
240 struct v4l2_mbus_framefmt *mbus_fmt)
241 {
242 struct vpfe_fmt *fmt;
243
244 fmt = find_format_by_pix(pix_fmt->pixelformat);
245 if (!fmt) {
246
247 vpfe_dbg(3, vpfe, "Invalid pixel code: %x, default used instead\n",
248 pix_fmt->pixelformat);
249 fmt = &formats[0];
250 }
251
252 memset(mbus_fmt, 0, sizeof(*mbus_fmt));
253 v4l2_fill_mbus_format(mbus_fmt, pix_fmt, fmt->code);
254 }
255
256
257 static char *print_fourcc(u32 fmt)
258 {
259 static char code[5];
260
261 code[0] = (unsigned char)(fmt & 0xff);
262 code[1] = (unsigned char)((fmt >> 8) & 0xff);
263 code[2] = (unsigned char)((fmt >> 16) & 0xff);
264 code[3] = (unsigned char)((fmt >> 24) & 0xff);
265 code[4] = '\0';
266
267 return code;
268 }
269
270 static int
271 cmp_v4l2_format(const struct v4l2_format *lhs, const struct v4l2_format *rhs)
272 {
273 return lhs->type == rhs->type &&
274 lhs->fmt.pix.width == rhs->fmt.pix.width &&
275 lhs->fmt.pix.height == rhs->fmt.pix.height &&
276 lhs->fmt.pix.pixelformat == rhs->fmt.pix.pixelformat &&
277 lhs->fmt.pix.field == rhs->fmt.pix.field &&
278 lhs->fmt.pix.colorspace == rhs->fmt.pix.colorspace &&
279 lhs->fmt.pix.ycbcr_enc == rhs->fmt.pix.ycbcr_enc &&
280 lhs->fmt.pix.quantization == rhs->fmt.pix.quantization &&
281 lhs->fmt.pix.xfer_func == rhs->fmt.pix.xfer_func;
282 }
283
284 static inline u32 vpfe_reg_read(struct vpfe_ccdc *ccdc, u32 offset)
285 {
286 return ioread32(ccdc->ccdc_cfg.base_addr + offset);
287 }
288
289 static inline void vpfe_reg_write(struct vpfe_ccdc *ccdc, u32 val, u32 offset)
290 {
291 iowrite32(val, ccdc->ccdc_cfg.base_addr + offset);
292 }
293
294 static inline struct vpfe_device *to_vpfe(struct vpfe_ccdc *ccdc)
295 {
296 return container_of(ccdc, struct vpfe_device, ccdc);
297 }
298
299 static inline
300 struct vpfe_cap_buffer *to_vpfe_buffer(struct vb2_v4l2_buffer *vb)
301 {
302 return container_of(vb, struct vpfe_cap_buffer, vb);
303 }
304
305 static inline void vpfe_pcr_enable(struct vpfe_ccdc *ccdc, int flag)
306 {
307 vpfe_reg_write(ccdc, !!flag, VPFE_PCR);
308 }
309
310 static void vpfe_config_enable(struct vpfe_ccdc *ccdc, int flag)
311 {
312 unsigned int cfg;
313
314 if (!flag) {
315 cfg = vpfe_reg_read(ccdc, VPFE_CONFIG);
316 cfg &= ~(VPFE_CONFIG_EN_ENABLE << VPFE_CONFIG_EN_SHIFT);
317 } else {
318 cfg = VPFE_CONFIG_EN_ENABLE << VPFE_CONFIG_EN_SHIFT;
319 }
320
321 vpfe_reg_write(ccdc, cfg, VPFE_CONFIG);
322 }
323
324 static void vpfe_ccdc_setwin(struct vpfe_ccdc *ccdc,
325 struct v4l2_rect *image_win,
326 enum ccdc_frmfmt frm_fmt,
327 int bpp)
328 {
329 int horz_start, horz_nr_pixels;
330 int vert_start, vert_nr_lines;
331 int val, mid_img;
332
333
334
335
336
337
338 horz_start = image_win->left * bpp;
339 horz_nr_pixels = (image_win->width * bpp) - 1;
340 vpfe_reg_write(ccdc, (horz_start << VPFE_HORZ_INFO_SPH_SHIFT) |
341 horz_nr_pixels, VPFE_HORZ_INFO);
342
343 vert_start = image_win->top;
344
345 if (frm_fmt == CCDC_FRMFMT_INTERLACED) {
346 vert_nr_lines = (image_win->height >> 1) - 1;
347 vert_start >>= 1;
348
349 vert_start += 1;
350
351 val = (vert_start << VPFE_VDINT_VDINT0_SHIFT);
352 } else {
353
354 vert_start += 1;
355 vert_nr_lines = image_win->height - 1;
356
357
358
359
360 mid_img = vert_start + (image_win->height / 2);
361 val = (vert_start << VPFE_VDINT_VDINT0_SHIFT) |
362 (mid_img & VPFE_VDINT_VDINT1_MASK);
363 }
364
365 vpfe_reg_write(ccdc, val, VPFE_VDINT);
366
367 vpfe_reg_write(ccdc, (vert_start << VPFE_VERT_START_SLV0_SHIFT) |
368 vert_start, VPFE_VERT_START);
369 vpfe_reg_write(ccdc, vert_nr_lines, VPFE_VERT_LINES);
370 }
371
372 static void vpfe_reg_dump(struct vpfe_ccdc *ccdc)
373 {
374 struct vpfe_device *vpfe = to_vpfe(ccdc);
375
376 vpfe_dbg(3, vpfe, "ALAW: 0x%x\n", vpfe_reg_read(ccdc, VPFE_ALAW));
377 vpfe_dbg(3, vpfe, "CLAMP: 0x%x\n", vpfe_reg_read(ccdc, VPFE_CLAMP));
378 vpfe_dbg(3, vpfe, "DCSUB: 0x%x\n", vpfe_reg_read(ccdc, VPFE_DCSUB));
379 vpfe_dbg(3, vpfe, "BLKCMP: 0x%x\n", vpfe_reg_read(ccdc, VPFE_BLKCMP));
380 vpfe_dbg(3, vpfe, "COLPTN: 0x%x\n", vpfe_reg_read(ccdc, VPFE_COLPTN));
381 vpfe_dbg(3, vpfe, "SDOFST: 0x%x\n", vpfe_reg_read(ccdc, VPFE_SDOFST));
382 vpfe_dbg(3, vpfe, "SYN_MODE: 0x%x\n",
383 vpfe_reg_read(ccdc, VPFE_SYNMODE));
384 vpfe_dbg(3, vpfe, "HSIZE_OFF: 0x%x\n",
385 vpfe_reg_read(ccdc, VPFE_HSIZE_OFF));
386 vpfe_dbg(3, vpfe, "HORZ_INFO: 0x%x\n",
387 vpfe_reg_read(ccdc, VPFE_HORZ_INFO));
388 vpfe_dbg(3, vpfe, "VERT_START: 0x%x\n",
389 vpfe_reg_read(ccdc, VPFE_VERT_START));
390 vpfe_dbg(3, vpfe, "VERT_LINES: 0x%x\n",
391 vpfe_reg_read(ccdc, VPFE_VERT_LINES));
392 }
393
394 static int
395 vpfe_ccdc_validate_param(struct vpfe_ccdc *ccdc,
396 struct vpfe_ccdc_config_params_raw *ccdcparam)
397 {
398 struct vpfe_device *vpfe = to_vpfe(ccdc);
399 u8 max_gamma, max_data;
400
401 if (!ccdcparam->alaw.enable)
402 return 0;
403
404 max_gamma = ccdc_gamma_width_max_bit(ccdcparam->alaw.gamma_wd);
405 max_data = ccdc_data_size_max_bit(ccdcparam->data_sz);
406
407 if (ccdcparam->alaw.gamma_wd > VPFE_CCDC_GAMMA_BITS_09_0 ||
408 ccdcparam->alaw.gamma_wd < VPFE_CCDC_GAMMA_BITS_15_6 ||
409 max_gamma > max_data) {
410 vpfe_dbg(1, vpfe, "Invalid data line select\n");
411 return -EINVAL;
412 }
413
414 return 0;
415 }
416
417 static void
418 vpfe_ccdc_update_raw_params(struct vpfe_ccdc *ccdc,
419 struct vpfe_ccdc_config_params_raw *raw_params)
420 {
421 struct vpfe_ccdc_config_params_raw *config_params =
422 &ccdc->ccdc_cfg.bayer.config_params;
423
424 *config_params = *raw_params;
425 }
426
427
428
429
430
431 static void vpfe_ccdc_restore_defaults(struct vpfe_ccdc *ccdc)
432 {
433 int i;
434
435
436 vpfe_pcr_enable(ccdc, 0);
437
438
439 for (i = 4; i <= 0x94; i += 4)
440 vpfe_reg_write(ccdc, 0, i);
441
442 vpfe_reg_write(ccdc, VPFE_NO_CULLING, VPFE_CULLING);
443 vpfe_reg_write(ccdc, VPFE_CCDC_GAMMA_BITS_11_2, VPFE_ALAW);
444 }
445
446 static int vpfe_ccdc_close(struct vpfe_ccdc *ccdc, struct device *dev)
447 {
448 int dma_cntl, i, pcr;
449
450
451 for (i = 0; i < 10; i++) {
452 usleep_range(5000, 6000);
453 pcr = vpfe_reg_read(ccdc, VPFE_PCR);
454 if (!pcr)
455 break;
456
457
458 vpfe_pcr_enable(ccdc, 0);
459 }
460
461
462 vpfe_ccdc_restore_defaults(ccdc);
463
464
465
466
467 for (i = 0; i < 10; i++) {
468 dma_cntl = vpfe_reg_read(ccdc, VPFE_DMA_CNTL);
469 if (!(dma_cntl & VPFE_DMA_CNTL_OVERFLOW))
470 break;
471
472
473 vpfe_reg_write(ccdc, dma_cntl, VPFE_DMA_CNTL);
474 usleep_range(5000, 6000);
475 }
476
477
478 vpfe_config_enable(ccdc, 0);
479
480 pm_runtime_put_sync(dev);
481
482 return 0;
483 }
484
485 static int vpfe_ccdc_set_params(struct vpfe_ccdc *ccdc, void __user *params)
486 {
487 struct vpfe_device *vpfe = container_of(ccdc, struct vpfe_device, ccdc);
488 struct vpfe_ccdc_config_params_raw raw_params;
489 int x;
490
491 if (ccdc->ccdc_cfg.if_type != VPFE_RAW_BAYER)
492 return -EINVAL;
493
494 x = copy_from_user(&raw_params, params, sizeof(raw_params));
495 if (x) {
496 vpfe_dbg(1, vpfe,
497 "vpfe_ccdc_set_params: error in copying ccdc params, %d\n",
498 x);
499 return -EFAULT;
500 }
501
502 if (!vpfe_ccdc_validate_param(ccdc, &raw_params)) {
503 vpfe_ccdc_update_raw_params(ccdc, &raw_params);
504 return 0;
505 }
506
507 return -EINVAL;
508 }
509
510
511
512
513
514 static void vpfe_ccdc_config_ycbcr(struct vpfe_ccdc *ccdc)
515 {
516 struct vpfe_device *vpfe = container_of(ccdc, struct vpfe_device, ccdc);
517 struct ccdc_params_ycbcr *params = &ccdc->ccdc_cfg.ycbcr;
518 u32 syn_mode;
519
520 vpfe_dbg(3, vpfe, "vpfe_ccdc_config_ycbcr:\n");
521
522
523
524
525
526 vpfe_ccdc_restore_defaults(ccdc);
527
528
529
530
531
532
533 syn_mode = (((params->pix_fmt & VPFE_SYN_MODE_INPMOD_MASK) <<
534 VPFE_SYN_MODE_INPMOD_SHIFT) |
535 ((params->frm_fmt & VPFE_SYN_FLDMODE_MASK) <<
536 VPFE_SYN_FLDMODE_SHIFT) | VPFE_VDHDEN_ENABLE |
537 VPFE_WEN_ENABLE | VPFE_DATA_PACK_ENABLE);
538
539
540 if (params->bt656_enable) {
541 vpfe_reg_write(ccdc, VPFE_REC656IF_BT656_EN, VPFE_REC656IF);
542
543
544
545
546
547 syn_mode |= VPFE_SYN_MODE_VD_POL_NEGATIVE;
548 if (ccdc->ccdc_cfg.if_type == VPFE_BT656_10BIT)
549 syn_mode |= VPFE_SYN_MODE_10BITS;
550 else
551 syn_mode |= VPFE_SYN_MODE_8BITS;
552 } else {
553
554 syn_mode |= (((params->fid_pol & VPFE_FID_POL_MASK) <<
555 VPFE_FID_POL_SHIFT) |
556 ((params->hd_pol & VPFE_HD_POL_MASK) <<
557 VPFE_HD_POL_SHIFT) |
558 ((params->vd_pol & VPFE_VD_POL_MASK) <<
559 VPFE_VD_POL_SHIFT));
560 }
561 vpfe_reg_write(ccdc, syn_mode, VPFE_SYNMODE);
562
563
564 vpfe_ccdc_setwin(ccdc, ¶ms->win,
565 params->frm_fmt, params->bytesperpixel);
566
567
568
569
570
571 if (ccdc->ccdc_cfg.if_type == VPFE_BT656_10BIT)
572 vpfe_reg_write(ccdc,
573 (params->pix_order << VPFE_CCDCFG_Y8POS_SHIFT) |
574 VPFE_LATCH_ON_VSYNC_DISABLE |
575 VPFE_CCDCFG_BW656_10BIT, VPFE_CCDCFG);
576 else
577 vpfe_reg_write(ccdc,
578 (params->pix_order << VPFE_CCDCFG_Y8POS_SHIFT) |
579 VPFE_LATCH_ON_VSYNC_DISABLE, VPFE_CCDCFG);
580
581
582
583
584
585 vpfe_reg_write(ccdc, params->bytesperline, VPFE_HSIZE_OFF);
586
587
588 if (params->buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED)
589
590 vpfe_reg_write(ccdc, VPFE_SDOFST_FIELD_INTERLEAVED,
591 VPFE_SDOFST);
592 }
593
594 static void
595 vpfe_ccdc_config_black_clamp(struct vpfe_ccdc *ccdc,
596 struct vpfe_ccdc_black_clamp *bclamp)
597 {
598 u32 val;
599
600 if (!bclamp->enable) {
601
602 val = (bclamp->dc_sub) & VPFE_BLK_DC_SUB_MASK;
603 vpfe_reg_write(ccdc, val, VPFE_DCSUB);
604 vpfe_reg_write(ccdc, VPFE_CLAMP_DEFAULT_VAL, VPFE_CLAMP);
605 return;
606 }
607
608
609
610
611 val = ((bclamp->sgain & VPFE_BLK_SGAIN_MASK) |
612 ((bclamp->start_pixel & VPFE_BLK_ST_PXL_MASK) <<
613 VPFE_BLK_ST_PXL_SHIFT) |
614 ((bclamp->sample_ln & VPFE_BLK_SAMPLE_LINE_MASK) <<
615 VPFE_BLK_SAMPLE_LINE_SHIFT) |
616 ((bclamp->sample_pixel & VPFE_BLK_SAMPLE_LN_MASK) <<
617 VPFE_BLK_SAMPLE_LN_SHIFT) | VPFE_BLK_CLAMP_ENABLE);
618 vpfe_reg_write(ccdc, val, VPFE_CLAMP);
619
620 vpfe_reg_write(ccdc, VPFE_DCSUB_DEFAULT_VAL, VPFE_DCSUB);
621 }
622
623 static void
624 vpfe_ccdc_config_black_compense(struct vpfe_ccdc *ccdc,
625 struct vpfe_ccdc_black_compensation *bcomp)
626 {
627 u32 val;
628
629 val = ((bcomp->b & VPFE_BLK_COMP_MASK) |
630 ((bcomp->gb & VPFE_BLK_COMP_MASK) <<
631 VPFE_BLK_COMP_GB_COMP_SHIFT) |
632 ((bcomp->gr & VPFE_BLK_COMP_MASK) <<
633 VPFE_BLK_COMP_GR_COMP_SHIFT) |
634 ((bcomp->r & VPFE_BLK_COMP_MASK) <<
635 VPFE_BLK_COMP_R_COMP_SHIFT));
636 vpfe_reg_write(ccdc, val, VPFE_BLKCMP);
637 }
638
639
640
641
642
643 static void vpfe_ccdc_config_raw(struct vpfe_ccdc *ccdc)
644 {
645 struct vpfe_device *vpfe = container_of(ccdc, struct vpfe_device, ccdc);
646 struct vpfe_ccdc_config_params_raw *config_params =
647 &ccdc->ccdc_cfg.bayer.config_params;
648 struct ccdc_params_raw *params = &ccdc->ccdc_cfg.bayer;
649 unsigned int syn_mode;
650 unsigned int val;
651
652 vpfe_dbg(3, vpfe, "vpfe_ccdc_config_raw:\n");
653
654
655 vpfe_ccdc_restore_defaults(ccdc);
656
657
658 vpfe_reg_write(ccdc, VPFE_LATCH_ON_VSYNC_DISABLE, VPFE_CCDCFG);
659
660
661
662
663
664
665
666
667 syn_mode = (((params->vd_pol & VPFE_VD_POL_MASK) << VPFE_VD_POL_SHIFT) |
668 ((params->hd_pol & VPFE_HD_POL_MASK) << VPFE_HD_POL_SHIFT) |
669 ((params->fid_pol & VPFE_FID_POL_MASK) <<
670 VPFE_FID_POL_SHIFT) | ((params->frm_fmt &
671 VPFE_FRM_FMT_MASK) << VPFE_FRM_FMT_SHIFT) |
672 ((config_params->data_sz & VPFE_DATA_SZ_MASK) <<
673 VPFE_DATA_SZ_SHIFT) | ((params->pix_fmt &
674 VPFE_PIX_FMT_MASK) << VPFE_PIX_FMT_SHIFT) |
675 VPFE_WEN_ENABLE | VPFE_VDHDEN_ENABLE);
676
677
678 if (config_params->alaw.enable) {
679 val = ((config_params->alaw.gamma_wd &
680 VPFE_ALAW_GAMMA_WD_MASK) | VPFE_ALAW_ENABLE);
681 vpfe_reg_write(ccdc, val, VPFE_ALAW);
682 vpfe_dbg(3, vpfe, "\nWriting 0x%x to ALAW...\n", val);
683 }
684
685
686 vpfe_ccdc_setwin(ccdc, ¶ms->win, params->frm_fmt,
687 params->bytesperpixel);
688
689
690 vpfe_ccdc_config_black_clamp(ccdc, &config_params->blk_clamp);
691
692
693 vpfe_ccdc_config_black_compense(ccdc, &config_params->blk_comp);
694
695
696 if ((config_params->data_sz == VPFE_CCDC_DATA_8BITS) ||
697 config_params->alaw.enable)
698 syn_mode |= VPFE_DATA_PACK_ENABLE;
699
700
701
702
703
704 vpfe_reg_write(ccdc, params->bytesperline, VPFE_HSIZE_OFF);
705
706 vpfe_dbg(3, vpfe, "Writing %d (%x) to HSIZE_OFF\n",
707 params->bytesperline, params->bytesperline);
708
709
710 if (params->frm_fmt == CCDC_FRMFMT_INTERLACED) {
711 if (params->image_invert_enable) {
712
713 vpfe_reg_write(ccdc, VPFE_INTERLACED_IMAGE_INVERT,
714 VPFE_SDOFST);
715 } else {
716
717 vpfe_reg_write(ccdc, VPFE_INTERLACED_NO_IMAGE_INVERT,
718 VPFE_SDOFST);
719 }
720 } else if (params->frm_fmt == CCDC_FRMFMT_PROGRESSIVE) {
721 vpfe_reg_write(ccdc, VPFE_PROGRESSIVE_NO_IMAGE_INVERT,
722 VPFE_SDOFST);
723 }
724
725 vpfe_reg_write(ccdc, syn_mode, VPFE_SYNMODE);
726
727 vpfe_reg_dump(ccdc);
728 }
729
730 static inline int
731 vpfe_ccdc_set_buftype(struct vpfe_ccdc *ccdc,
732 enum ccdc_buftype buf_type)
733 {
734 if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
735 ccdc->ccdc_cfg.bayer.buf_type = buf_type;
736 else
737 ccdc->ccdc_cfg.ycbcr.buf_type = buf_type;
738
739 return 0;
740 }
741
742 static inline enum ccdc_buftype vpfe_ccdc_get_buftype(struct vpfe_ccdc *ccdc)
743 {
744 if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
745 return ccdc->ccdc_cfg.bayer.buf_type;
746
747 return ccdc->ccdc_cfg.ycbcr.buf_type;
748 }
749
750 static int vpfe_ccdc_set_pixel_format(struct vpfe_ccdc *ccdc, u32 pixfmt)
751 {
752 struct vpfe_device *vpfe = container_of(ccdc, struct vpfe_device, ccdc);
753
754 vpfe_dbg(1, vpfe, "vpfe_ccdc_set_pixel_format: if_type: %d, pixfmt:%s\n",
755 ccdc->ccdc_cfg.if_type, print_fourcc(pixfmt));
756
757 if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER) {
758 ccdc->ccdc_cfg.bayer.pix_fmt = CCDC_PIXFMT_RAW;
759
760
761
762
763 ccdc->ccdc_cfg.bayer.config_params.alaw.enable = 0;
764
765 switch (pixfmt) {
766 case V4L2_PIX_FMT_SBGGR8:
767 ccdc->ccdc_cfg.bayer.config_params.alaw.enable = 1;
768 break;
769
770 case V4L2_PIX_FMT_YUYV:
771 case V4L2_PIX_FMT_UYVY:
772 case V4L2_PIX_FMT_YUV420:
773 case V4L2_PIX_FMT_NV12:
774 case V4L2_PIX_FMT_RGB565X:
775 break;
776
777 case V4L2_PIX_FMT_SBGGR16:
778 default:
779 return -EINVAL;
780 }
781 } else {
782 switch (pixfmt) {
783 case V4L2_PIX_FMT_YUYV:
784 ccdc->ccdc_cfg.ycbcr.pix_order = CCDC_PIXORDER_YCBYCR;
785 break;
786
787 case V4L2_PIX_FMT_UYVY:
788 ccdc->ccdc_cfg.ycbcr.pix_order = CCDC_PIXORDER_CBYCRY;
789 break;
790
791 default:
792 return -EINVAL;
793 }
794 }
795
796 return 0;
797 }
798
799 static u32 vpfe_ccdc_get_pixel_format(struct vpfe_ccdc *ccdc)
800 {
801 u32 pixfmt;
802
803 if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER) {
804 pixfmt = V4L2_PIX_FMT_YUYV;
805 } else {
806 if (ccdc->ccdc_cfg.ycbcr.pix_order == CCDC_PIXORDER_YCBYCR)
807 pixfmt = V4L2_PIX_FMT_YUYV;
808 else
809 pixfmt = V4L2_PIX_FMT_UYVY;
810 }
811
812 return pixfmt;
813 }
814
815 static int
816 vpfe_ccdc_set_image_window(struct vpfe_ccdc *ccdc,
817 struct v4l2_rect *win, unsigned int bpp)
818 {
819 if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER) {
820 ccdc->ccdc_cfg.bayer.win = *win;
821 ccdc->ccdc_cfg.bayer.bytesperpixel = bpp;
822 ccdc->ccdc_cfg.bayer.bytesperline = ALIGN(win->width * bpp, 32);
823 } else {
824 ccdc->ccdc_cfg.ycbcr.win = *win;
825 ccdc->ccdc_cfg.ycbcr.bytesperpixel = bpp;
826 ccdc->ccdc_cfg.ycbcr.bytesperline = ALIGN(win->width * bpp, 32);
827 }
828
829 return 0;
830 }
831
832 static inline void
833 vpfe_ccdc_get_image_window(struct vpfe_ccdc *ccdc,
834 struct v4l2_rect *win)
835 {
836 if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
837 *win = ccdc->ccdc_cfg.bayer.win;
838 else
839 *win = ccdc->ccdc_cfg.ycbcr.win;
840 }
841
842 static inline unsigned int vpfe_ccdc_get_line_length(struct vpfe_ccdc *ccdc)
843 {
844 if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
845 return ccdc->ccdc_cfg.bayer.bytesperline;
846
847 return ccdc->ccdc_cfg.ycbcr.bytesperline;
848 }
849
850 static inline int
851 vpfe_ccdc_set_frame_format(struct vpfe_ccdc *ccdc,
852 enum ccdc_frmfmt frm_fmt)
853 {
854 if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
855 ccdc->ccdc_cfg.bayer.frm_fmt = frm_fmt;
856 else
857 ccdc->ccdc_cfg.ycbcr.frm_fmt = frm_fmt;
858
859 return 0;
860 }
861
862 static inline enum ccdc_frmfmt
863 vpfe_ccdc_get_frame_format(struct vpfe_ccdc *ccdc)
864 {
865 if (ccdc->ccdc_cfg.if_type == VPFE_RAW_BAYER)
866 return ccdc->ccdc_cfg.bayer.frm_fmt;
867
868 return ccdc->ccdc_cfg.ycbcr.frm_fmt;
869 }
870
871 static inline int vpfe_ccdc_getfid(struct vpfe_ccdc *ccdc)
872 {
873 return (vpfe_reg_read(ccdc, VPFE_SYNMODE) >> 15) & 1;
874 }
875
876 static inline void vpfe_set_sdr_addr(struct vpfe_ccdc *ccdc, unsigned long addr)
877 {
878 vpfe_reg_write(ccdc, addr & 0xffffffe0, VPFE_SDR_ADDR);
879 }
880
881 static int vpfe_ccdc_set_hw_if_params(struct vpfe_ccdc *ccdc,
882 struct vpfe_hw_if_param *params)
883 {
884 struct vpfe_device *vpfe = container_of(ccdc, struct vpfe_device, ccdc);
885
886 ccdc->ccdc_cfg.if_type = params->if_type;
887
888 switch (params->if_type) {
889 case VPFE_BT656:
890 case VPFE_YCBCR_SYNC_16:
891 case VPFE_YCBCR_SYNC_8:
892 case VPFE_BT656_10BIT:
893 ccdc->ccdc_cfg.ycbcr.vd_pol = params->vdpol;
894 ccdc->ccdc_cfg.ycbcr.hd_pol = params->hdpol;
895 break;
896
897 case VPFE_RAW_BAYER:
898 ccdc->ccdc_cfg.bayer.vd_pol = params->vdpol;
899 ccdc->ccdc_cfg.bayer.hd_pol = params->hdpol;
900 if (params->bus_width == 10)
901 ccdc->ccdc_cfg.bayer.config_params.data_sz =
902 VPFE_CCDC_DATA_10BITS;
903 else
904 ccdc->ccdc_cfg.bayer.config_params.data_sz =
905 VPFE_CCDC_DATA_8BITS;
906 vpfe_dbg(1, vpfe, "params.bus_width: %d\n",
907 params->bus_width);
908 vpfe_dbg(1, vpfe, "config_params.data_sz: %d\n",
909 ccdc->ccdc_cfg.bayer.config_params.data_sz);
910 break;
911
912 default:
913 return -EINVAL;
914 }
915
916 return 0;
917 }
918
919 static void vpfe_clear_intr(struct vpfe_ccdc *ccdc, int vdint)
920 {
921 unsigned int vpfe_int_status;
922
923 vpfe_int_status = vpfe_reg_read(ccdc, VPFE_IRQ_STS);
924
925 switch (vdint) {
926
927 case VPFE_VDINT0:
928 vpfe_int_status &= ~VPFE_VDINT0;
929 vpfe_int_status |= VPFE_VDINT0;
930 break;
931
932
933 case VPFE_VDINT1:
934 vpfe_int_status &= ~VPFE_VDINT1;
935 vpfe_int_status |= VPFE_VDINT1;
936 break;
937
938
939 case VPFE_VDINT2:
940 vpfe_int_status &= ~VPFE_VDINT2;
941 vpfe_int_status |= VPFE_VDINT2;
942 break;
943
944
945 default:
946 vpfe_int_status &= ~(VPFE_VDINT0 |
947 VPFE_VDINT1 |
948 VPFE_VDINT2);
949 vpfe_int_status |= (VPFE_VDINT0 |
950 VPFE_VDINT1 |
951 VPFE_VDINT2);
952 break;
953 }
954
955 vpfe_reg_write(ccdc, vpfe_int_status, VPFE_IRQ_STS);
956
957 vpfe_int_status = vpfe_reg_read(ccdc, VPFE_IRQ_STS);
958
959
960 vpfe_reg_write(ccdc, 1, VPFE_IRQ_EOI);
961 }
962
963 static void vpfe_ccdc_config_defaults(struct vpfe_ccdc *ccdc)
964 {
965 ccdc->ccdc_cfg.if_type = VPFE_RAW_BAYER;
966
967 ccdc->ccdc_cfg.ycbcr.pix_fmt = CCDC_PIXFMT_YCBCR_8BIT;
968 ccdc->ccdc_cfg.ycbcr.frm_fmt = CCDC_FRMFMT_INTERLACED;
969 ccdc->ccdc_cfg.ycbcr.fid_pol = VPFE_PINPOL_POSITIVE;
970 ccdc->ccdc_cfg.ycbcr.vd_pol = VPFE_PINPOL_POSITIVE;
971 ccdc->ccdc_cfg.ycbcr.hd_pol = VPFE_PINPOL_POSITIVE;
972 ccdc->ccdc_cfg.ycbcr.pix_order = CCDC_PIXORDER_CBYCRY;
973 ccdc->ccdc_cfg.ycbcr.buf_type = CCDC_BUFTYPE_FLD_INTERLEAVED;
974
975 ccdc->ccdc_cfg.ycbcr.win.left = 0;
976 ccdc->ccdc_cfg.ycbcr.win.top = 0;
977 ccdc->ccdc_cfg.ycbcr.win.width = 720;
978 ccdc->ccdc_cfg.ycbcr.win.height = 576;
979 ccdc->ccdc_cfg.ycbcr.bt656_enable = 1;
980
981 ccdc->ccdc_cfg.bayer.pix_fmt = CCDC_PIXFMT_RAW;
982 ccdc->ccdc_cfg.bayer.frm_fmt = CCDC_FRMFMT_PROGRESSIVE;
983 ccdc->ccdc_cfg.bayer.fid_pol = VPFE_PINPOL_POSITIVE;
984 ccdc->ccdc_cfg.bayer.vd_pol = VPFE_PINPOL_POSITIVE;
985 ccdc->ccdc_cfg.bayer.hd_pol = VPFE_PINPOL_POSITIVE;
986
987 ccdc->ccdc_cfg.bayer.win.left = 0;
988 ccdc->ccdc_cfg.bayer.win.top = 0;
989 ccdc->ccdc_cfg.bayer.win.width = 800;
990 ccdc->ccdc_cfg.bayer.win.height = 600;
991 ccdc->ccdc_cfg.bayer.config_params.data_sz = VPFE_CCDC_DATA_8BITS;
992 ccdc->ccdc_cfg.bayer.config_params.alaw.gamma_wd =
993 VPFE_CCDC_GAMMA_BITS_09_0;
994 }
995
996
997
998
999 static int vpfe_get_ccdc_image_format(struct vpfe_device *vpfe,
1000 struct v4l2_format *f)
1001 {
1002 struct v4l2_rect image_win;
1003 enum ccdc_buftype buf_type;
1004 enum ccdc_frmfmt frm_fmt;
1005
1006 memset(f, 0, sizeof(*f));
1007 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1008 vpfe_ccdc_get_image_window(&vpfe->ccdc, &image_win);
1009 f->fmt.pix.width = image_win.width;
1010 f->fmt.pix.height = image_win.height;
1011 f->fmt.pix.bytesperline = vpfe_ccdc_get_line_length(&vpfe->ccdc);
1012 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
1013 f->fmt.pix.height;
1014 buf_type = vpfe_ccdc_get_buftype(&vpfe->ccdc);
1015 f->fmt.pix.pixelformat = vpfe_ccdc_get_pixel_format(&vpfe->ccdc);
1016 frm_fmt = vpfe_ccdc_get_frame_format(&vpfe->ccdc);
1017
1018 if (frm_fmt == CCDC_FRMFMT_PROGRESSIVE) {
1019 f->fmt.pix.field = V4L2_FIELD_NONE;
1020 } else if (frm_fmt == CCDC_FRMFMT_INTERLACED) {
1021 if (buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED) {
1022 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1023 } else if (buf_type == CCDC_BUFTYPE_FLD_SEPARATED) {
1024 f->fmt.pix.field = V4L2_FIELD_SEQ_TB;
1025 } else {
1026 vpfe_err(vpfe, "Invalid buf_type\n");
1027 return -EINVAL;
1028 }
1029 } else {
1030 vpfe_err(vpfe, "Invalid frm_fmt\n");
1031 return -EINVAL;
1032 }
1033 return 0;
1034 }
1035
1036 static int vpfe_config_ccdc_image_format(struct vpfe_device *vpfe)
1037 {
1038 enum ccdc_frmfmt frm_fmt = CCDC_FRMFMT_INTERLACED;
1039 int ret = 0;
1040
1041 vpfe_dbg(2, vpfe, "vpfe_config_ccdc_image_format\n");
1042
1043 vpfe_dbg(1, vpfe, "pixelformat: %s\n",
1044 print_fourcc(vpfe->fmt.fmt.pix.pixelformat));
1045
1046 if (vpfe_ccdc_set_pixel_format(&vpfe->ccdc,
1047 vpfe->fmt.fmt.pix.pixelformat) < 0) {
1048 vpfe_err(vpfe, "couldn't set pix format in ccdc\n");
1049 return -EINVAL;
1050 }
1051
1052
1053 vpfe_ccdc_set_image_window(&vpfe->ccdc, &vpfe->crop, vpfe->bpp);
1054
1055 switch (vpfe->fmt.fmt.pix.field) {
1056 case V4L2_FIELD_INTERLACED:
1057
1058 ret = vpfe_ccdc_set_buftype(
1059 &vpfe->ccdc,
1060 CCDC_BUFTYPE_FLD_INTERLEAVED);
1061 break;
1062
1063 case V4L2_FIELD_NONE:
1064 frm_fmt = CCDC_FRMFMT_PROGRESSIVE;
1065
1066 break;
1067
1068 case V4L2_FIELD_SEQ_TB:
1069 ret = vpfe_ccdc_set_buftype(
1070 &vpfe->ccdc,
1071 CCDC_BUFTYPE_FLD_SEPARATED);
1072 break;
1073
1074 default:
1075 return -EINVAL;
1076 }
1077
1078 if (ret)
1079 return ret;
1080
1081 return vpfe_ccdc_set_frame_format(&vpfe->ccdc, frm_fmt);
1082 }
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094 static int vpfe_config_image_format(struct vpfe_device *vpfe,
1095 v4l2_std_id std_id)
1096 {
1097 struct v4l2_pix_format *pix = &vpfe->fmt.fmt.pix;
1098 int i, ret;
1099
1100 for (i = 0; i < ARRAY_SIZE(vpfe_standards); i++) {
1101 if (vpfe_standards[i].std_id & std_id) {
1102 vpfe->std_info.active_pixels =
1103 vpfe_standards[i].width;
1104 vpfe->std_info.active_lines =
1105 vpfe_standards[i].height;
1106 vpfe->std_info.frame_format =
1107 vpfe_standards[i].frame_format;
1108 vpfe->std_index = i;
1109
1110 break;
1111 }
1112 }
1113
1114 if (i == ARRAY_SIZE(vpfe_standards)) {
1115 vpfe_err(vpfe, "standard not supported\n");
1116 return -EINVAL;
1117 }
1118
1119 vpfe->crop.top = vpfe->crop.left = 0;
1120 vpfe->crop.width = vpfe->std_info.active_pixels;
1121 vpfe->crop.height = vpfe->std_info.active_lines;
1122 pix->width = vpfe->crop.width;
1123 pix->height = vpfe->crop.height;
1124 pix->pixelformat = V4L2_PIX_FMT_YUYV;
1125
1126
1127 if (vpfe->std_info.frame_format)
1128 pix->field = V4L2_FIELD_INTERLACED;
1129 else
1130 pix->field = V4L2_FIELD_NONE;
1131
1132 ret = __vpfe_get_format(vpfe, &vpfe->fmt, &vpfe->bpp);
1133 if (ret)
1134 return ret;
1135
1136
1137 vpfe->crop.width = pix->width;
1138 vpfe->crop.height = pix->height;
1139
1140 return vpfe_config_ccdc_image_format(vpfe);
1141 }
1142
1143 static int vpfe_initialize_device(struct vpfe_device *vpfe)
1144 {
1145 struct vpfe_subdev_info *sdinfo;
1146 int ret;
1147
1148 sdinfo = &vpfe->cfg->sub_devs[0];
1149 sdinfo->sd = vpfe->sd[0];
1150 vpfe->current_input = 0;
1151 vpfe->std_index = 0;
1152
1153 ret = vpfe_config_image_format(vpfe,
1154 vpfe_standards[vpfe->std_index].std_id);
1155 if (ret)
1156 return ret;
1157
1158 pm_runtime_get_sync(vpfe->pdev);
1159
1160 vpfe_config_enable(&vpfe->ccdc, 1);
1161
1162 vpfe_ccdc_restore_defaults(&vpfe->ccdc);
1163
1164
1165 vpfe_clear_intr(&vpfe->ccdc, -1);
1166
1167 return ret;
1168 }
1169
1170
1171
1172
1173
1174
1175
1176 static int vpfe_release(struct file *file)
1177 {
1178 struct vpfe_device *vpfe = video_drvdata(file);
1179 bool fh_singular;
1180 int ret;
1181
1182 mutex_lock(&vpfe->lock);
1183
1184
1185 fh_singular = v4l2_fh_is_singular_file(file);
1186
1187
1188 ret = _vb2_fop_release(file, NULL);
1189
1190
1191
1192
1193
1194 if (fh_singular)
1195 vpfe_ccdc_close(&vpfe->ccdc, vpfe->pdev);
1196
1197 mutex_unlock(&vpfe->lock);
1198
1199 return ret;
1200 }
1201
1202
1203
1204
1205
1206
1207 static int vpfe_open(struct file *file)
1208 {
1209 struct vpfe_device *vpfe = video_drvdata(file);
1210 int ret;
1211
1212 mutex_lock(&vpfe->lock);
1213
1214 ret = v4l2_fh_open(file);
1215 if (ret) {
1216 vpfe_err(vpfe, "v4l2_fh_open failed\n");
1217 goto unlock;
1218 }
1219
1220 if (!v4l2_fh_is_singular_file(file))
1221 goto unlock;
1222
1223 if (vpfe_initialize_device(vpfe)) {
1224 v4l2_fh_release(file);
1225 ret = -ENODEV;
1226 }
1227
1228 unlock:
1229 mutex_unlock(&vpfe->lock);
1230 return ret;
1231 }
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243 static inline void vpfe_schedule_next_buffer(struct vpfe_device *vpfe)
1244 {
1245 vpfe->next_frm = list_entry(vpfe->dma_queue.next,
1246 struct vpfe_cap_buffer, list);
1247 list_del(&vpfe->next_frm->list);
1248
1249 vpfe_set_sdr_addr(&vpfe->ccdc,
1250 vb2_dma_contig_plane_dma_addr(&vpfe->next_frm->vb.vb2_buf, 0));
1251 }
1252
1253 static inline void vpfe_schedule_bottom_field(struct vpfe_device *vpfe)
1254 {
1255 unsigned long addr;
1256
1257 addr = vb2_dma_contig_plane_dma_addr(&vpfe->next_frm->vb.vb2_buf, 0) +
1258 vpfe->field_off;
1259
1260 vpfe_set_sdr_addr(&vpfe->ccdc, addr);
1261 }
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271 static inline void vpfe_process_buffer_complete(struct vpfe_device *vpfe)
1272 {
1273 vpfe->cur_frm->vb.vb2_buf.timestamp = ktime_get_ns();
1274 vpfe->cur_frm->vb.field = vpfe->fmt.fmt.pix.field;
1275 vpfe->cur_frm->vb.sequence = vpfe->sequence++;
1276 vb2_buffer_done(&vpfe->cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE);
1277 vpfe->cur_frm = vpfe->next_frm;
1278 }
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288 static irqreturn_t vpfe_isr(int irq, void *dev)
1289 {
1290 struct vpfe_device *vpfe = (struct vpfe_device *)dev;
1291 enum v4l2_field field;
1292 int intr_status;
1293 int fid;
1294
1295 intr_status = vpfe_reg_read(&vpfe->ccdc, VPFE_IRQ_STS);
1296
1297 if (intr_status & VPFE_VDINT0) {
1298 field = vpfe->fmt.fmt.pix.field;
1299
1300 if (field == V4L2_FIELD_NONE) {
1301
1302 if (vpfe->cur_frm != vpfe->next_frm)
1303 vpfe_process_buffer_complete(vpfe);
1304 goto next_intr;
1305 }
1306
1307
1308
1309 fid = vpfe_ccdc_getfid(&vpfe->ccdc);
1310
1311
1312 vpfe->field ^= 1;
1313 if (fid == vpfe->field) {
1314
1315 if (fid == 0) {
1316
1317
1318
1319
1320
1321 if (vpfe->cur_frm != vpfe->next_frm)
1322 vpfe_process_buffer_complete(vpfe);
1323
1324
1325
1326
1327
1328 if (field == V4L2_FIELD_SEQ_TB)
1329 vpfe_schedule_bottom_field(vpfe);
1330
1331 goto next_intr;
1332 }
1333
1334
1335
1336
1337
1338
1339 spin_lock(&vpfe->dma_queue_lock);
1340 if (!list_empty(&vpfe->dma_queue) &&
1341 vpfe->cur_frm == vpfe->next_frm)
1342 vpfe_schedule_next_buffer(vpfe);
1343 spin_unlock(&vpfe->dma_queue_lock);
1344 } else if (fid == 0) {
1345
1346
1347
1348
1349 vpfe->field = fid;
1350 }
1351 }
1352
1353 next_intr:
1354 if (intr_status & VPFE_VDINT1) {
1355 spin_lock(&vpfe->dma_queue_lock);
1356 if (vpfe->fmt.fmt.pix.field == V4L2_FIELD_NONE &&
1357 !list_empty(&vpfe->dma_queue) &&
1358 vpfe->cur_frm == vpfe->next_frm)
1359 vpfe_schedule_next_buffer(vpfe);
1360 spin_unlock(&vpfe->dma_queue_lock);
1361 }
1362
1363 vpfe_clear_intr(&vpfe->ccdc, intr_status);
1364
1365 return IRQ_HANDLED;
1366 }
1367
1368 static inline void vpfe_detach_irq(struct vpfe_device *vpfe)
1369 {
1370 unsigned int intr = VPFE_VDINT0;
1371 enum ccdc_frmfmt frame_format;
1372
1373 frame_format = vpfe_ccdc_get_frame_format(&vpfe->ccdc);
1374 if (frame_format == CCDC_FRMFMT_PROGRESSIVE)
1375 intr |= VPFE_VDINT1;
1376
1377 vpfe_reg_write(&vpfe->ccdc, intr, VPFE_IRQ_EN_CLR);
1378 }
1379
1380 static inline void vpfe_attach_irq(struct vpfe_device *vpfe)
1381 {
1382 unsigned int intr = VPFE_VDINT0;
1383 enum ccdc_frmfmt frame_format;
1384
1385 frame_format = vpfe_ccdc_get_frame_format(&vpfe->ccdc);
1386 if (frame_format == CCDC_FRMFMT_PROGRESSIVE)
1387 intr |= VPFE_VDINT1;
1388
1389 vpfe_reg_write(&vpfe->ccdc, intr, VPFE_IRQ_EN_SET);
1390 }
1391
1392 static int vpfe_querycap(struct file *file, void *priv,
1393 struct v4l2_capability *cap)
1394 {
1395 struct vpfe_device *vpfe = video_drvdata(file);
1396
1397 vpfe_dbg(2, vpfe, "vpfe_querycap\n");
1398
1399 strscpy(cap->driver, VPFE_MODULE_NAME, sizeof(cap->driver));
1400 strscpy(cap->card, "TI AM437x VPFE", sizeof(cap->card));
1401 snprintf(cap->bus_info, sizeof(cap->bus_info),
1402 "platform:%s", vpfe->v4l2_dev.name);
1403 return 0;
1404 }
1405
1406
1407 static int __vpfe_get_format(struct vpfe_device *vpfe,
1408 struct v4l2_format *format, unsigned int *bpp)
1409 {
1410 struct v4l2_mbus_framefmt mbus_fmt;
1411 struct vpfe_subdev_info *sdinfo;
1412 struct v4l2_subdev_format fmt;
1413 int ret;
1414
1415 sdinfo = vpfe->current_subdev;
1416 if (!sdinfo->sd)
1417 return -EINVAL;
1418
1419 fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
1420 fmt.pad = 0;
1421
1422 ret = v4l2_subdev_call(sdinfo->sd, pad, get_fmt, NULL, &fmt);
1423 if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
1424 return ret;
1425
1426 if (!ret) {
1427 v4l2_fill_pix_format(&format->fmt.pix, &fmt.format);
1428 mbus_to_pix(vpfe, &fmt.format, &format->fmt.pix, bpp);
1429 } else {
1430 ret = v4l2_device_call_until_err(&vpfe->v4l2_dev,
1431 sdinfo->grp_id,
1432 pad, get_fmt,
1433 NULL, &fmt);
1434 if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
1435 return ret;
1436 v4l2_fill_pix_format(&format->fmt.pix, &mbus_fmt);
1437 mbus_to_pix(vpfe, &mbus_fmt, &format->fmt.pix, bpp);
1438 }
1439
1440 format->type = vpfe->fmt.type;
1441
1442 vpfe_dbg(1, vpfe,
1443 "%s size %dx%d (%s) bytesperline = %d, size = %d, bpp = %d\n",
1444 __func__, format->fmt.pix.width, format->fmt.pix.height,
1445 print_fourcc(format->fmt.pix.pixelformat),
1446 format->fmt.pix.bytesperline, format->fmt.pix.sizeimage, *bpp);
1447
1448 return 0;
1449 }
1450
1451
1452 static int __vpfe_set_format(struct vpfe_device *vpfe,
1453 struct v4l2_format *format, unsigned int *bpp)
1454 {
1455 struct vpfe_subdev_info *sdinfo;
1456 struct v4l2_subdev_format fmt;
1457 int ret;
1458
1459 vpfe_dbg(2, vpfe, "__vpfe_set_format\n");
1460
1461 sdinfo = vpfe->current_subdev;
1462 if (!sdinfo->sd)
1463 return -EINVAL;
1464
1465 fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
1466 fmt.pad = 0;
1467
1468 pix_to_mbus(vpfe, &format->fmt.pix, &fmt.format);
1469
1470 ret = v4l2_subdev_call(sdinfo->sd, pad, set_fmt, NULL, &fmt);
1471 if (ret)
1472 return ret;
1473
1474 v4l2_fill_pix_format(&format->fmt.pix, &fmt.format);
1475 mbus_to_pix(vpfe, &fmt.format, &format->fmt.pix, bpp);
1476
1477 format->type = vpfe->fmt.type;
1478
1479 vpfe_dbg(1, vpfe,
1480 "%s size %dx%d (%s) bytesperline = %d, size = %d, bpp = %d\n",
1481 __func__, format->fmt.pix.width, format->fmt.pix.height,
1482 print_fourcc(format->fmt.pix.pixelformat),
1483 format->fmt.pix.bytesperline, format->fmt.pix.sizeimage, *bpp);
1484
1485 return 0;
1486 }
1487
1488 static int vpfe_g_fmt(struct file *file, void *priv,
1489 struct v4l2_format *fmt)
1490 {
1491 struct vpfe_device *vpfe = video_drvdata(file);
1492
1493 vpfe_dbg(2, vpfe, "vpfe_g_fmt\n");
1494
1495 *fmt = vpfe->fmt;
1496
1497 return 0;
1498 }
1499
1500 static int vpfe_enum_fmt(struct file *file, void *priv,
1501 struct v4l2_fmtdesc *f)
1502 {
1503 struct vpfe_device *vpfe = video_drvdata(file);
1504 struct vpfe_subdev_info *sdinfo;
1505 struct vpfe_fmt *fmt = NULL;
1506 unsigned int k;
1507
1508 vpfe_dbg(2, vpfe, "vpfe_enum_format index:%d\n",
1509 f->index);
1510
1511 sdinfo = vpfe->current_subdev;
1512 if (!sdinfo->sd)
1513 return -EINVAL;
1514
1515 if (f->index > ARRAY_SIZE(formats))
1516 return -EINVAL;
1517
1518 for (k = 0; k < ARRAY_SIZE(formats); k++) {
1519 if (formats[k].index == f->index) {
1520 fmt = &formats[k];
1521 break;
1522 }
1523 }
1524 if (!fmt)
1525 return -EINVAL;
1526
1527 f->pixelformat = fmt->fourcc;
1528
1529 vpfe_dbg(1, vpfe, "vpfe_enum_format: mbus index: %d code: %x pixelformat: %s\n",
1530 f->index, fmt->code, print_fourcc(fmt->fourcc));
1531
1532 return 0;
1533 }
1534
1535 static int vpfe_try_fmt(struct file *file, void *priv,
1536 struct v4l2_format *fmt)
1537 {
1538 struct vpfe_device *vpfe = video_drvdata(file);
1539 unsigned int bpp;
1540
1541 vpfe_dbg(2, vpfe, "vpfe_try_fmt\n");
1542
1543 return __vpfe_get_format(vpfe, fmt, &bpp);
1544 }
1545
1546 static int vpfe_s_fmt(struct file *file, void *priv,
1547 struct v4l2_format *fmt)
1548 {
1549 struct vpfe_device *vpfe = video_drvdata(file);
1550 struct v4l2_format format;
1551 unsigned int bpp;
1552 int ret;
1553
1554 vpfe_dbg(2, vpfe, "vpfe_s_fmt\n");
1555
1556
1557 if (vb2_is_busy(&vpfe->buffer_queue)) {
1558 vpfe_err(vpfe, "%s device busy\n", __func__);
1559 return -EBUSY;
1560 }
1561
1562 ret = __vpfe_get_format(vpfe, &format, &bpp);
1563 if (ret)
1564 return ret;
1565
1566
1567 if (!cmp_v4l2_format(fmt, &format)) {
1568
1569
1570
1571 ret = __vpfe_set_format(vpfe, fmt, &bpp);
1572 if (ret)
1573 return ret;
1574 } else
1575 *fmt = format;
1576
1577
1578 vpfe_detach_irq(vpfe);
1579 vpfe->fmt = *fmt;
1580 vpfe->bpp = bpp;
1581
1582
1583 vpfe->crop.width = fmt->fmt.pix.width;
1584 vpfe->crop.height = fmt->fmt.pix.height;
1585
1586
1587 return vpfe_config_ccdc_image_format(vpfe);
1588 }
1589
1590 static int vpfe_enum_size(struct file *file, void *priv,
1591 struct v4l2_frmsizeenum *fsize)
1592 {
1593 struct vpfe_device *vpfe = video_drvdata(file);
1594 struct v4l2_subdev_frame_size_enum fse;
1595 struct vpfe_subdev_info *sdinfo;
1596 struct v4l2_mbus_framefmt mbus;
1597 struct v4l2_pix_format pix;
1598 struct vpfe_fmt *fmt;
1599 int ret;
1600
1601 vpfe_dbg(2, vpfe, "vpfe_enum_size\n");
1602
1603
1604 fmt = find_format_by_pix(fsize->pixel_format);
1605 if (!fmt) {
1606 vpfe_dbg(3, vpfe, "Invalid pixel code: %x, default used instead\n",
1607 fsize->pixel_format);
1608 return -EINVAL;
1609 }
1610
1611 memset(fsize->reserved, 0x0, sizeof(fsize->reserved));
1612
1613 sdinfo = vpfe->current_subdev;
1614 if (!sdinfo->sd)
1615 return -EINVAL;
1616
1617 memset(&pix, 0x0, sizeof(pix));
1618
1619 pix.pixelformat = fsize->pixel_format;
1620 pix.width = 640;
1621 pix.height = 480;
1622 pix.colorspace = V4L2_COLORSPACE_SRGB;
1623 pix.field = V4L2_FIELD_NONE;
1624 pix_to_mbus(vpfe, &pix, &mbus);
1625
1626 memset(&fse, 0x0, sizeof(fse));
1627 fse.index = fsize->index;
1628 fse.pad = 0;
1629 fse.code = mbus.code;
1630 fse.which = V4L2_SUBDEV_FORMAT_ACTIVE;
1631 ret = v4l2_subdev_call(sdinfo->sd, pad, enum_frame_size, NULL, &fse);
1632 if (ret)
1633 return -EINVAL;
1634
1635 vpfe_dbg(1, vpfe, "vpfe_enum_size: index: %d code: %x W:[%d,%d] H:[%d,%d]\n",
1636 fse.index, fse.code, fse.min_width, fse.max_width,
1637 fse.min_height, fse.max_height);
1638
1639 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1640 fsize->discrete.width = fse.max_width;
1641 fsize->discrete.height = fse.max_height;
1642
1643 vpfe_dbg(1, vpfe, "vpfe_enum_size: index: %d pixformat: %s size: %dx%d\n",
1644 fsize->index, print_fourcc(fsize->pixel_format),
1645 fsize->discrete.width, fsize->discrete.height);
1646
1647 return 0;
1648 }
1649
1650
1651
1652
1653
1654 static int
1655 vpfe_get_subdev_input_index(struct vpfe_device *vpfe,
1656 int *subdev_index,
1657 int *subdev_input_index,
1658 int app_input_index)
1659 {
1660 int i, j = 0;
1661
1662 for (i = 0; i < ARRAY_SIZE(vpfe->cfg->asd); i++) {
1663 if (app_input_index < (j + 1)) {
1664 *subdev_index = i;
1665 *subdev_input_index = app_input_index - j;
1666 return 0;
1667 }
1668 j++;
1669 }
1670 return -EINVAL;
1671 }
1672
1673
1674
1675
1676
1677
1678 static int vpfe_get_app_input_index(struct vpfe_device *vpfe,
1679 int *app_input_index)
1680 {
1681 struct vpfe_config *cfg = vpfe->cfg;
1682 struct vpfe_subdev_info *sdinfo;
1683 struct i2c_client *client;
1684 struct i2c_client *curr_client;
1685 int i, j = 0;
1686
1687 curr_client = v4l2_get_subdevdata(vpfe->current_subdev->sd);
1688 for (i = 0; i < ARRAY_SIZE(vpfe->cfg->asd); i++) {
1689 sdinfo = &cfg->sub_devs[i];
1690 client = v4l2_get_subdevdata(sdinfo->sd);
1691 if (client->addr == curr_client->addr &&
1692 client->adapter->nr == curr_client->adapter->nr) {
1693 if (vpfe->current_input >= 1)
1694 return -1;
1695 *app_input_index = j + vpfe->current_input;
1696 return 0;
1697 }
1698 j++;
1699 }
1700 return -EINVAL;
1701 }
1702
1703 static int vpfe_enum_input(struct file *file, void *priv,
1704 struct v4l2_input *inp)
1705 {
1706 struct vpfe_device *vpfe = video_drvdata(file);
1707 struct vpfe_subdev_info *sdinfo;
1708 int subdev, index;
1709
1710 vpfe_dbg(2, vpfe, "vpfe_enum_input\n");
1711
1712 if (vpfe_get_subdev_input_index(vpfe, &subdev, &index,
1713 inp->index) < 0) {
1714 vpfe_dbg(1, vpfe,
1715 "input information not found for the subdev\n");
1716 return -EINVAL;
1717 }
1718 sdinfo = &vpfe->cfg->sub_devs[subdev];
1719 *inp = sdinfo->inputs[index];
1720
1721 return 0;
1722 }
1723
1724 static int vpfe_g_input(struct file *file, void *priv, unsigned int *index)
1725 {
1726 struct vpfe_device *vpfe = video_drvdata(file);
1727
1728 vpfe_dbg(2, vpfe, "vpfe_g_input\n");
1729
1730 return vpfe_get_app_input_index(vpfe, index);
1731 }
1732
1733
1734 static int vpfe_set_input(struct vpfe_device *vpfe, unsigned int index)
1735 {
1736 int subdev_index = 0, inp_index = 0;
1737 struct vpfe_subdev_info *sdinfo;
1738 struct vpfe_route *route;
1739 u32 input, output;
1740 int ret;
1741
1742 vpfe_dbg(2, vpfe, "vpfe_set_input: index: %d\n", index);
1743
1744
1745 if (vb2_is_busy(&vpfe->buffer_queue)) {
1746 vpfe_err(vpfe, "%s device busy\n", __func__);
1747 return -EBUSY;
1748 }
1749 ret = vpfe_get_subdev_input_index(vpfe,
1750 &subdev_index,
1751 &inp_index,
1752 index);
1753 if (ret < 0) {
1754 vpfe_err(vpfe, "invalid input index: %d\n", index);
1755 goto get_out;
1756 }
1757
1758 sdinfo = &vpfe->cfg->sub_devs[subdev_index];
1759 sdinfo->sd = vpfe->sd[subdev_index];
1760 route = &sdinfo->routes[inp_index];
1761 if (route && sdinfo->can_route) {
1762 input = route->input;
1763 output = route->output;
1764 if (sdinfo->sd) {
1765 ret = v4l2_subdev_call(sdinfo->sd, video,
1766 s_routing, input, output, 0);
1767 if (ret) {
1768 vpfe_err(vpfe, "s_routing failed\n");
1769 ret = -EINVAL;
1770 goto get_out;
1771 }
1772 }
1773
1774 }
1775
1776 vpfe->current_subdev = sdinfo;
1777 if (sdinfo->sd)
1778 vpfe->v4l2_dev.ctrl_handler = sdinfo->sd->ctrl_handler;
1779 vpfe->current_input = index;
1780 vpfe->std_index = 0;
1781
1782
1783 ret = vpfe_ccdc_set_hw_if_params(&vpfe->ccdc, &sdinfo->vpfe_param);
1784 if (ret)
1785 return ret;
1786
1787
1788 return vpfe_config_image_format(vpfe,
1789 vpfe_standards[vpfe->std_index].std_id);
1790
1791 get_out:
1792 return ret;
1793 }
1794
1795 static int vpfe_s_input(struct file *file, void *priv, unsigned int index)
1796 {
1797 struct vpfe_device *vpfe = video_drvdata(file);
1798
1799 vpfe_dbg(2, vpfe,
1800 "vpfe_s_input: index: %d\n", index);
1801
1802 return vpfe_set_input(vpfe, index);
1803 }
1804
1805 static int vpfe_querystd(struct file *file, void *priv, v4l2_std_id *std_id)
1806 {
1807 struct vpfe_device *vpfe = video_drvdata(file);
1808 struct vpfe_subdev_info *sdinfo;
1809
1810 vpfe_dbg(2, vpfe, "vpfe_querystd\n");
1811
1812 sdinfo = vpfe->current_subdev;
1813 if (!(sdinfo->inputs[0].capabilities & V4L2_IN_CAP_STD))
1814 return -ENODATA;
1815
1816
1817 return v4l2_device_call_until_err(&vpfe->v4l2_dev, sdinfo->grp_id,
1818 video, querystd, std_id);
1819 }
1820
1821 static int vpfe_s_std(struct file *file, void *priv, v4l2_std_id std_id)
1822 {
1823 struct vpfe_device *vpfe = video_drvdata(file);
1824 struct vpfe_subdev_info *sdinfo;
1825 int ret;
1826
1827 vpfe_dbg(2, vpfe, "vpfe_s_std\n");
1828
1829 sdinfo = vpfe->current_subdev;
1830 if (!(sdinfo->inputs[0].capabilities & V4L2_IN_CAP_STD))
1831 return -ENODATA;
1832
1833
1834 if (vpfe_standards[vpfe->std_index].std_id == std_id)
1835 return 0;
1836
1837
1838 if (vb2_is_busy(&vpfe->buffer_queue)) {
1839 vpfe_err(vpfe, "%s device busy\n", __func__);
1840 ret = -EBUSY;
1841 return ret;
1842 }
1843
1844 ret = v4l2_device_call_until_err(&vpfe->v4l2_dev, sdinfo->grp_id,
1845 video, s_std, std_id);
1846 if (ret < 0) {
1847 vpfe_err(vpfe, "Failed to set standard\n");
1848 return ret;
1849 }
1850 ret = vpfe_config_image_format(vpfe, std_id);
1851
1852 return ret;
1853 }
1854
1855 static int vpfe_g_std(struct file *file, void *priv, v4l2_std_id *std_id)
1856 {
1857 struct vpfe_device *vpfe = video_drvdata(file);
1858 struct vpfe_subdev_info *sdinfo;
1859
1860 vpfe_dbg(2, vpfe, "vpfe_g_std\n");
1861
1862 sdinfo = vpfe->current_subdev;
1863 if (sdinfo->inputs[0].capabilities != V4L2_IN_CAP_STD)
1864 return -ENODATA;
1865
1866 *std_id = vpfe_standards[vpfe->std_index].std_id;
1867
1868 return 0;
1869 }
1870
1871
1872
1873
1874
1875 static void vpfe_calculate_offsets(struct vpfe_device *vpfe)
1876 {
1877 struct v4l2_rect image_win;
1878
1879 vpfe_dbg(2, vpfe, "vpfe_calculate_offsets\n");
1880
1881 vpfe_ccdc_get_image_window(&vpfe->ccdc, &image_win);
1882 vpfe->field_off = image_win.height * image_win.width;
1883 }
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896 static int vpfe_queue_setup(struct vb2_queue *vq,
1897 unsigned int *nbuffers, unsigned int *nplanes,
1898 unsigned int sizes[], struct device *alloc_devs[])
1899 {
1900 struct vpfe_device *vpfe = vb2_get_drv_priv(vq);
1901 unsigned size = vpfe->fmt.fmt.pix.sizeimage;
1902
1903 if (vq->num_buffers + *nbuffers < 3)
1904 *nbuffers = 3 - vq->num_buffers;
1905
1906 if (*nplanes) {
1907 if (sizes[0] < size)
1908 return -EINVAL;
1909 size = sizes[0];
1910 }
1911
1912 *nplanes = 1;
1913 sizes[0] = size;
1914
1915 vpfe_dbg(1, vpfe,
1916 "nbuffers=%d, size=%u\n", *nbuffers, sizes[0]);
1917
1918
1919 vpfe_calculate_offsets(vpfe);
1920
1921 return 0;
1922 }
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932 static int vpfe_buffer_prepare(struct vb2_buffer *vb)
1933 {
1934 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1935 struct vpfe_device *vpfe = vb2_get_drv_priv(vb->vb2_queue);
1936
1937 vb2_set_plane_payload(vb, 0, vpfe->fmt.fmt.pix.sizeimage);
1938
1939 if (vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0))
1940 return -EINVAL;
1941
1942 vbuf->field = vpfe->fmt.fmt.pix.field;
1943
1944 return 0;
1945 }
1946
1947
1948
1949
1950
1951 static void vpfe_buffer_queue(struct vb2_buffer *vb)
1952 {
1953 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1954 struct vpfe_device *vpfe = vb2_get_drv_priv(vb->vb2_queue);
1955 struct vpfe_cap_buffer *buf = to_vpfe_buffer(vbuf);
1956 unsigned long flags = 0;
1957
1958
1959 spin_lock_irqsave(&vpfe->dma_queue_lock, flags);
1960 list_add_tail(&buf->list, &vpfe->dma_queue);
1961 spin_unlock_irqrestore(&vpfe->dma_queue_lock, flags);
1962 }
1963
1964
1965
1966
1967
1968
1969 static int vpfe_start_streaming(struct vb2_queue *vq, unsigned int count)
1970 {
1971 struct vpfe_device *vpfe = vb2_get_drv_priv(vq);
1972 struct vpfe_cap_buffer *buf, *tmp;
1973 struct vpfe_subdev_info *sdinfo;
1974 unsigned long flags;
1975 unsigned long addr;
1976 int ret;
1977
1978 spin_lock_irqsave(&vpfe->dma_queue_lock, flags);
1979
1980 vpfe->field = 0;
1981 vpfe->sequence = 0;
1982
1983 sdinfo = vpfe->current_subdev;
1984
1985 vpfe_attach_irq(vpfe);
1986
1987 if (vpfe->ccdc.ccdc_cfg.if_type == VPFE_RAW_BAYER)
1988 vpfe_ccdc_config_raw(&vpfe->ccdc);
1989 else
1990 vpfe_ccdc_config_ycbcr(&vpfe->ccdc);
1991
1992
1993 vpfe->next_frm = list_entry(vpfe->dma_queue.next,
1994 struct vpfe_cap_buffer, list);
1995 vpfe->cur_frm = vpfe->next_frm;
1996
1997 list_del(&vpfe->cur_frm->list);
1998 spin_unlock_irqrestore(&vpfe->dma_queue_lock, flags);
1999
2000 addr = vb2_dma_contig_plane_dma_addr(&vpfe->cur_frm->vb.vb2_buf, 0);
2001
2002 vpfe_set_sdr_addr(&vpfe->ccdc, (unsigned long)(addr));
2003
2004 vpfe_pcr_enable(&vpfe->ccdc, 1);
2005
2006 ret = v4l2_subdev_call(sdinfo->sd, video, s_stream, 1);
2007 if (ret < 0) {
2008 vpfe_err(vpfe, "Error in attaching interrupt handle\n");
2009 goto err;
2010 }
2011
2012 return 0;
2013
2014 err:
2015 list_for_each_entry_safe(buf, tmp, &vpfe->dma_queue, list) {
2016 list_del(&buf->list);
2017 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED);
2018 }
2019
2020 return ret;
2021 }
2022
2023
2024
2025
2026
2027
2028
2029
2030 static void vpfe_stop_streaming(struct vb2_queue *vq)
2031 {
2032 struct vpfe_device *vpfe = vb2_get_drv_priv(vq);
2033 struct vpfe_subdev_info *sdinfo;
2034 unsigned long flags;
2035 int ret;
2036
2037 vpfe_pcr_enable(&vpfe->ccdc, 0);
2038
2039 vpfe_detach_irq(vpfe);
2040
2041 sdinfo = vpfe->current_subdev;
2042 ret = v4l2_subdev_call(sdinfo->sd, video, s_stream, 0);
2043 if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
2044 vpfe_dbg(1, vpfe, "stream off failed in subdev\n");
2045
2046
2047 spin_lock_irqsave(&vpfe->dma_queue_lock, flags);
2048 if (vpfe->cur_frm == vpfe->next_frm) {
2049 vb2_buffer_done(&vpfe->cur_frm->vb.vb2_buf,
2050 VB2_BUF_STATE_ERROR);
2051 } else {
2052 if (vpfe->cur_frm != NULL)
2053 vb2_buffer_done(&vpfe->cur_frm->vb.vb2_buf,
2054 VB2_BUF_STATE_ERROR);
2055 if (vpfe->next_frm != NULL)
2056 vb2_buffer_done(&vpfe->next_frm->vb.vb2_buf,
2057 VB2_BUF_STATE_ERROR);
2058 }
2059
2060 while (!list_empty(&vpfe->dma_queue)) {
2061 vpfe->next_frm = list_entry(vpfe->dma_queue.next,
2062 struct vpfe_cap_buffer, list);
2063 list_del(&vpfe->next_frm->list);
2064 vb2_buffer_done(&vpfe->next_frm->vb.vb2_buf,
2065 VB2_BUF_STATE_ERROR);
2066 }
2067 spin_unlock_irqrestore(&vpfe->dma_queue_lock, flags);
2068 }
2069
2070 static int vpfe_g_pixelaspect(struct file *file, void *priv,
2071 int type, struct v4l2_fract *f)
2072 {
2073 struct vpfe_device *vpfe = video_drvdata(file);
2074
2075 vpfe_dbg(2, vpfe, "vpfe_g_pixelaspect\n");
2076
2077 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2078 vpfe->std_index >= ARRAY_SIZE(vpfe_standards))
2079 return -EINVAL;
2080
2081 *f = vpfe_standards[vpfe->std_index].pixelaspect;
2082
2083 return 0;
2084 }
2085
2086 static int
2087 vpfe_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
2088 {
2089 struct vpfe_device *vpfe = video_drvdata(file);
2090
2091 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2092 vpfe->std_index >= ARRAY_SIZE(vpfe_standards))
2093 return -EINVAL;
2094
2095 switch (s->target) {
2096 case V4L2_SEL_TGT_CROP_BOUNDS:
2097 case V4L2_SEL_TGT_CROP_DEFAULT:
2098 s->r.left = 0;
2099 s->r.top = 0;
2100 s->r.width = vpfe_standards[vpfe->std_index].width;
2101 s->r.height = vpfe_standards[vpfe->std_index].height;
2102 break;
2103
2104 case V4L2_SEL_TGT_CROP:
2105 s->r = vpfe->crop;
2106 break;
2107
2108 default:
2109 return -EINVAL;
2110 }
2111
2112 return 0;
2113 }
2114
2115 static int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b)
2116 {
2117 if (a->left < b->left || a->top < b->top)
2118 return 0;
2119
2120 if (a->left + a->width > b->left + b->width)
2121 return 0;
2122
2123 if (a->top + a->height > b->top + b->height)
2124 return 0;
2125
2126 return 1;
2127 }
2128
2129 static int
2130 vpfe_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
2131 {
2132 struct vpfe_device *vpfe = video_drvdata(file);
2133 struct v4l2_rect cr = vpfe->crop;
2134 struct v4l2_rect r = s->r;
2135
2136
2137 if (vb2_is_busy(&vpfe->buffer_queue)) {
2138 vpfe_err(vpfe, "%s device busy\n", __func__);
2139 return -EBUSY;
2140 }
2141
2142 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2143 s->target != V4L2_SEL_TGT_CROP)
2144 return -EINVAL;
2145
2146 v4l_bound_align_image(&r.width, 0, cr.width, 0,
2147 &r.height, 0, cr.height, 0, 0);
2148
2149 r.left = clamp_t(unsigned int, r.left, 0, cr.width - r.width);
2150 r.top = clamp_t(unsigned int, r.top, 0, cr.height - r.height);
2151
2152 if (s->flags & V4L2_SEL_FLAG_LE && !enclosed_rectangle(&r, &s->r))
2153 return -ERANGE;
2154
2155 if (s->flags & V4L2_SEL_FLAG_GE && !enclosed_rectangle(&s->r, &r))
2156 return -ERANGE;
2157
2158 s->r = vpfe->crop = r;
2159
2160 vpfe_ccdc_set_image_window(&vpfe->ccdc, &r, vpfe->bpp);
2161 vpfe->fmt.fmt.pix.width = r.width;
2162 vpfe->fmt.fmt.pix.height = r.height;
2163 vpfe->fmt.fmt.pix.bytesperline = vpfe_ccdc_get_line_length(&vpfe->ccdc);
2164 vpfe->fmt.fmt.pix.sizeimage = vpfe->fmt.fmt.pix.bytesperline *
2165 vpfe->fmt.fmt.pix.height;
2166
2167 vpfe_dbg(1, vpfe, "cropped (%d,%d)/%dx%d of %dx%d\n",
2168 r.left, r.top, r.width, r.height, cr.width, cr.height);
2169
2170 return 0;
2171 }
2172
2173 static long vpfe_ioctl_default(struct file *file, void *priv,
2174 bool valid_prio, unsigned int cmd, void *param)
2175 {
2176 struct vpfe_device *vpfe = video_drvdata(file);
2177 int ret;
2178
2179 vpfe_dbg(2, vpfe, "vpfe_ioctl_default\n");
2180
2181 if (!valid_prio) {
2182 vpfe_err(vpfe, "%s device busy\n", __func__);
2183 return -EBUSY;
2184 }
2185
2186
2187 if (vb2_is_busy(&vpfe->buffer_queue)) {
2188 vpfe_err(vpfe, "%s device busy\n", __func__);
2189 return -EBUSY;
2190 }
2191
2192 switch (cmd) {
2193 case VIDIOC_AM437X_CCDC_CFG:
2194 ret = vpfe_ccdc_set_params(&vpfe->ccdc, (void __user *)param);
2195 if (ret) {
2196 vpfe_dbg(2, vpfe,
2197 "Error setting parameters in CCDC\n");
2198 return ret;
2199 }
2200 ret = vpfe_get_ccdc_image_format(vpfe,
2201 &vpfe->fmt);
2202 if (ret < 0) {
2203 vpfe_dbg(2, vpfe,
2204 "Invalid image format at CCDC\n");
2205 return ret;
2206 }
2207 break;
2208
2209 default:
2210 ret = -ENOTTY;
2211 break;
2212 }
2213
2214 return ret;
2215 }
2216
2217 static const struct vb2_ops vpfe_video_qops = {
2218 .wait_prepare = vb2_ops_wait_prepare,
2219 .wait_finish = vb2_ops_wait_finish,
2220 .queue_setup = vpfe_queue_setup,
2221 .buf_prepare = vpfe_buffer_prepare,
2222 .buf_queue = vpfe_buffer_queue,
2223 .start_streaming = vpfe_start_streaming,
2224 .stop_streaming = vpfe_stop_streaming,
2225 };
2226
2227
2228 static const struct v4l2_file_operations vpfe_fops = {
2229 .owner = THIS_MODULE,
2230 .open = vpfe_open,
2231 .release = vpfe_release,
2232 .read = vb2_fop_read,
2233 .poll = vb2_fop_poll,
2234 .unlocked_ioctl = video_ioctl2,
2235 .mmap = vb2_fop_mmap,
2236 };
2237
2238
2239 static const struct v4l2_ioctl_ops vpfe_ioctl_ops = {
2240 .vidioc_querycap = vpfe_querycap,
2241 .vidioc_enum_fmt_vid_cap = vpfe_enum_fmt,
2242 .vidioc_g_fmt_vid_cap = vpfe_g_fmt,
2243 .vidioc_s_fmt_vid_cap = vpfe_s_fmt,
2244 .vidioc_try_fmt_vid_cap = vpfe_try_fmt,
2245
2246 .vidioc_enum_framesizes = vpfe_enum_size,
2247
2248 .vidioc_enum_input = vpfe_enum_input,
2249 .vidioc_g_input = vpfe_g_input,
2250 .vidioc_s_input = vpfe_s_input,
2251
2252 .vidioc_querystd = vpfe_querystd,
2253 .vidioc_s_std = vpfe_s_std,
2254 .vidioc_g_std = vpfe_g_std,
2255
2256 .vidioc_reqbufs = vb2_ioctl_reqbufs,
2257 .vidioc_create_bufs = vb2_ioctl_create_bufs,
2258 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
2259 .vidioc_querybuf = vb2_ioctl_querybuf,
2260 .vidioc_qbuf = vb2_ioctl_qbuf,
2261 .vidioc_dqbuf = vb2_ioctl_dqbuf,
2262 .vidioc_expbuf = vb2_ioctl_expbuf,
2263 .vidioc_streamon = vb2_ioctl_streamon,
2264 .vidioc_streamoff = vb2_ioctl_streamoff,
2265
2266 .vidioc_log_status = v4l2_ctrl_log_status,
2267 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
2268 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
2269
2270 .vidioc_g_pixelaspect = vpfe_g_pixelaspect,
2271 .vidioc_g_selection = vpfe_g_selection,
2272 .vidioc_s_selection = vpfe_s_selection,
2273
2274 .vidioc_default = vpfe_ioctl_default,
2275 };
2276
2277 static int
2278 vpfe_async_bound(struct v4l2_async_notifier *notifier,
2279 struct v4l2_subdev *subdev,
2280 struct v4l2_async_subdev *asd)
2281 {
2282 struct vpfe_device *vpfe = container_of(notifier->v4l2_dev,
2283 struct vpfe_device, v4l2_dev);
2284 struct v4l2_subdev_mbus_code_enum mbus_code;
2285 struct vpfe_subdev_info *sdinfo;
2286 bool found = false;
2287 int i, j;
2288
2289 vpfe_dbg(1, vpfe, "vpfe_async_bound\n");
2290
2291 for (i = 0; i < ARRAY_SIZE(vpfe->cfg->asd); i++) {
2292 if (vpfe->cfg->asd[i]->match.fwnode ==
2293 asd[i].match.fwnode) {
2294 sdinfo = &vpfe->cfg->sub_devs[i];
2295 vpfe->sd[i] = subdev;
2296 vpfe->sd[i]->grp_id = sdinfo->grp_id;
2297 found = true;
2298 break;
2299 }
2300 }
2301
2302 if (!found) {
2303 vpfe_info(vpfe, "sub device (%s) not matched\n", subdev->name);
2304 return -EINVAL;
2305 }
2306
2307 vpfe->video_dev.tvnorms |= sdinfo->inputs[0].std;
2308
2309
2310 for (j = 0, i = 0; ; ++j) {
2311 struct vpfe_fmt *fmt;
2312 int ret;
2313
2314 memset(&mbus_code, 0, sizeof(mbus_code));
2315 mbus_code.index = j;
2316 mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE;
2317 ret = v4l2_subdev_call(subdev, pad, enum_mbus_code,
2318 NULL, &mbus_code);
2319 if (ret)
2320 break;
2321
2322 fmt = find_format_by_code(mbus_code.code);
2323 if (!fmt)
2324 continue;
2325
2326 fmt->supported = true;
2327 fmt->index = i++;
2328 }
2329
2330 return 0;
2331 }
2332
2333 static int vpfe_probe_complete(struct vpfe_device *vpfe)
2334 {
2335 struct video_device *vdev;
2336 struct vb2_queue *q;
2337 int err;
2338
2339 spin_lock_init(&vpfe->dma_queue_lock);
2340 mutex_init(&vpfe->lock);
2341
2342 vpfe->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2343
2344
2345 vpfe->current_subdev = &vpfe->cfg->sub_devs[0];
2346 vpfe->v4l2_dev.ctrl_handler = vpfe->sd[0]->ctrl_handler;
2347
2348 err = vpfe_set_input(vpfe, 0);
2349 if (err)
2350 goto probe_out;
2351
2352
2353 q = &vpfe->buffer_queue;
2354 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2355 q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
2356 q->drv_priv = vpfe;
2357 q->ops = &vpfe_video_qops;
2358 q->mem_ops = &vb2_dma_contig_memops;
2359 q->buf_struct_size = sizeof(struct vpfe_cap_buffer);
2360 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2361 q->lock = &vpfe->lock;
2362 q->min_buffers_needed = 1;
2363 q->dev = vpfe->pdev;
2364
2365 err = vb2_queue_init(q);
2366 if (err) {
2367 vpfe_err(vpfe, "vb2_queue_init() failed\n");
2368 goto probe_out;
2369 }
2370
2371 INIT_LIST_HEAD(&vpfe->dma_queue);
2372
2373 vdev = &vpfe->video_dev;
2374 strscpy(vdev->name, VPFE_MODULE_NAME, sizeof(vdev->name));
2375 vdev->release = video_device_release_empty;
2376 vdev->fops = &vpfe_fops;
2377 vdev->ioctl_ops = &vpfe_ioctl_ops;
2378 vdev->v4l2_dev = &vpfe->v4l2_dev;
2379 vdev->vfl_dir = VFL_DIR_RX;
2380 vdev->queue = q;
2381 vdev->lock = &vpfe->lock;
2382 vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING |
2383 V4L2_CAP_READWRITE;
2384 video_set_drvdata(vdev, vpfe);
2385 err = video_register_device(&vpfe->video_dev, VFL_TYPE_GRABBER, -1);
2386 if (err) {
2387 vpfe_err(vpfe,
2388 "Unable to register video device.\n");
2389 goto probe_out;
2390 }
2391
2392 return 0;
2393
2394 probe_out:
2395 v4l2_device_unregister(&vpfe->v4l2_dev);
2396 return err;
2397 }
2398
2399 static int vpfe_async_complete(struct v4l2_async_notifier *notifier)
2400 {
2401 struct vpfe_device *vpfe = container_of(notifier->v4l2_dev,
2402 struct vpfe_device, v4l2_dev);
2403
2404 return vpfe_probe_complete(vpfe);
2405 }
2406
2407 static const struct v4l2_async_notifier_operations vpfe_async_ops = {
2408 .bound = vpfe_async_bound,
2409 .complete = vpfe_async_complete,
2410 };
2411
2412 static struct vpfe_config *
2413 vpfe_get_pdata(struct vpfe_device *vpfe)
2414 {
2415 struct device_node *endpoint = NULL;
2416 struct device *dev = vpfe->pdev;
2417 struct vpfe_subdev_info *sdinfo;
2418 struct vpfe_config *pdata;
2419 unsigned int flags;
2420 unsigned int i;
2421 int err;
2422
2423 dev_dbg(dev, "vpfe_get_pdata\n");
2424
2425 v4l2_async_notifier_init(&vpfe->notifier);
2426
2427 if (!IS_ENABLED(CONFIG_OF) || !dev->of_node)
2428 return dev->platform_data;
2429
2430 pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
2431 if (!pdata)
2432 return NULL;
2433
2434 for (i = 0; ; i++) {
2435 struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
2436 struct device_node *rem;
2437
2438 endpoint = of_graph_get_next_endpoint(dev->of_node, endpoint);
2439 if (!endpoint)
2440 break;
2441
2442 sdinfo = &pdata->sub_devs[i];
2443 sdinfo->grp_id = 0;
2444
2445
2446 sdinfo->inputs[0].index = i;
2447 strscpy(sdinfo->inputs[0].name, "Camera",
2448 sizeof(sdinfo->inputs[0].name));
2449 sdinfo->inputs[0].type = V4L2_INPUT_TYPE_CAMERA;
2450 sdinfo->inputs[0].std = V4L2_STD_ALL;
2451 sdinfo->inputs[0].capabilities = V4L2_IN_CAP_STD;
2452
2453 sdinfo->can_route = 0;
2454 sdinfo->routes = NULL;
2455
2456 of_property_read_u32(endpoint, "ti,am437x-vpfe-interface",
2457 &sdinfo->vpfe_param.if_type);
2458 if (sdinfo->vpfe_param.if_type < 0 ||
2459 sdinfo->vpfe_param.if_type > 4) {
2460 sdinfo->vpfe_param.if_type = VPFE_RAW_BAYER;
2461 }
2462
2463 err = v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint),
2464 &bus_cfg);
2465 if (err) {
2466 dev_err(dev, "Could not parse the endpoint\n");
2467 goto cleanup;
2468 }
2469
2470 sdinfo->vpfe_param.bus_width = bus_cfg.bus.parallel.bus_width;
2471
2472 if (sdinfo->vpfe_param.bus_width < 8 ||
2473 sdinfo->vpfe_param.bus_width > 16) {
2474 dev_err(dev, "Invalid bus width.\n");
2475 goto cleanup;
2476 }
2477
2478 flags = bus_cfg.bus.parallel.flags;
2479
2480 if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
2481 sdinfo->vpfe_param.hdpol = 1;
2482
2483 if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
2484 sdinfo->vpfe_param.vdpol = 1;
2485
2486 rem = of_graph_get_remote_port_parent(endpoint);
2487 if (!rem) {
2488 dev_err(dev, "Remote device at %pOF not found\n",
2489 endpoint);
2490 goto cleanup;
2491 }
2492
2493 pdata->asd[i] = v4l2_async_notifier_add_fwnode_subdev(
2494 &vpfe->notifier, of_fwnode_handle(rem),
2495 sizeof(struct v4l2_async_subdev));
2496 of_node_put(rem);
2497 if (IS_ERR(pdata->asd[i]))
2498 goto cleanup;
2499 }
2500
2501 of_node_put(endpoint);
2502 return pdata;
2503
2504 cleanup:
2505 v4l2_async_notifier_cleanup(&vpfe->notifier);
2506 of_node_put(endpoint);
2507 return NULL;
2508 }
2509
2510
2511
2512
2513
2514
2515 static int vpfe_probe(struct platform_device *pdev)
2516 {
2517 struct vpfe_config *vpfe_cfg;
2518 struct vpfe_device *vpfe;
2519 struct vpfe_ccdc *ccdc;
2520 struct resource *res;
2521 int ret;
2522
2523 vpfe = devm_kzalloc(&pdev->dev, sizeof(*vpfe), GFP_KERNEL);
2524 if (!vpfe)
2525 return -ENOMEM;
2526
2527 vpfe->pdev = &pdev->dev;
2528
2529 vpfe_cfg = vpfe_get_pdata(vpfe);
2530 if (!vpfe_cfg) {
2531 dev_err(&pdev->dev, "No platform data\n");
2532 return -EINVAL;
2533 }
2534
2535 vpfe->cfg = vpfe_cfg;
2536 ccdc = &vpfe->ccdc;
2537
2538 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2539 ccdc->ccdc_cfg.base_addr = devm_ioremap_resource(&pdev->dev, res);
2540 if (IS_ERR(ccdc->ccdc_cfg.base_addr)) {
2541 ret = PTR_ERR(ccdc->ccdc_cfg.base_addr);
2542 goto probe_out_cleanup;
2543 }
2544
2545 ret = platform_get_irq(pdev, 0);
2546 if (ret <= 0) {
2547 ret = -ENODEV;
2548 goto probe_out_cleanup;
2549 }
2550 vpfe->irq = ret;
2551
2552 ret = devm_request_irq(vpfe->pdev, vpfe->irq, vpfe_isr, 0,
2553 "vpfe_capture0", vpfe);
2554 if (ret) {
2555 dev_err(&pdev->dev, "Unable to request interrupt\n");
2556 ret = -EINVAL;
2557 goto probe_out_cleanup;
2558 }
2559
2560 ret = v4l2_device_register(&pdev->dev, &vpfe->v4l2_dev);
2561 if (ret) {
2562 vpfe_err(vpfe,
2563 "Unable to register v4l2 device.\n");
2564 goto probe_out_cleanup;
2565 }
2566
2567
2568 platform_set_drvdata(pdev, vpfe);
2569
2570 pm_runtime_enable(&pdev->dev);
2571
2572
2573 pm_runtime_get_sync(&pdev->dev);
2574
2575 vpfe_ccdc_config_defaults(ccdc);
2576
2577 pm_runtime_put_sync(&pdev->dev);
2578
2579 vpfe->sd = devm_kcalloc(&pdev->dev,
2580 ARRAY_SIZE(vpfe->cfg->asd),
2581 sizeof(struct v4l2_subdev *),
2582 GFP_KERNEL);
2583 if (!vpfe->sd) {
2584 ret = -ENOMEM;
2585 goto probe_out_v4l2_unregister;
2586 }
2587
2588 vpfe->notifier.ops = &vpfe_async_ops;
2589 ret = v4l2_async_notifier_register(&vpfe->v4l2_dev, &vpfe->notifier);
2590 if (ret) {
2591 vpfe_err(vpfe, "Error registering async notifier\n");
2592 ret = -EINVAL;
2593 goto probe_out_v4l2_unregister;
2594 }
2595
2596 return 0;
2597
2598 probe_out_v4l2_unregister:
2599 v4l2_device_unregister(&vpfe->v4l2_dev);
2600 probe_out_cleanup:
2601 v4l2_async_notifier_cleanup(&vpfe->notifier);
2602 return ret;
2603 }
2604
2605
2606
2607
2608 static int vpfe_remove(struct platform_device *pdev)
2609 {
2610 struct vpfe_device *vpfe = platform_get_drvdata(pdev);
2611
2612 vpfe_dbg(2, vpfe, "vpfe_remove\n");
2613
2614 pm_runtime_disable(&pdev->dev);
2615
2616 v4l2_async_notifier_unregister(&vpfe->notifier);
2617 v4l2_async_notifier_cleanup(&vpfe->notifier);
2618 v4l2_device_unregister(&vpfe->v4l2_dev);
2619 video_unregister_device(&vpfe->video_dev);
2620
2621 return 0;
2622 }
2623
2624 #ifdef CONFIG_PM_SLEEP
2625
2626 static void vpfe_save_context(struct vpfe_ccdc *ccdc)
2627 {
2628 ccdc->ccdc_ctx[VPFE_PCR >> 2] = vpfe_reg_read(ccdc, VPFE_PCR);
2629 ccdc->ccdc_ctx[VPFE_SYNMODE >> 2] = vpfe_reg_read(ccdc, VPFE_SYNMODE);
2630 ccdc->ccdc_ctx[VPFE_SDOFST >> 2] = vpfe_reg_read(ccdc, VPFE_SDOFST);
2631 ccdc->ccdc_ctx[VPFE_SDR_ADDR >> 2] = vpfe_reg_read(ccdc, VPFE_SDR_ADDR);
2632 ccdc->ccdc_ctx[VPFE_CLAMP >> 2] = vpfe_reg_read(ccdc, VPFE_CLAMP);
2633 ccdc->ccdc_ctx[VPFE_DCSUB >> 2] = vpfe_reg_read(ccdc, VPFE_DCSUB);
2634 ccdc->ccdc_ctx[VPFE_COLPTN >> 2] = vpfe_reg_read(ccdc, VPFE_COLPTN);
2635 ccdc->ccdc_ctx[VPFE_BLKCMP >> 2] = vpfe_reg_read(ccdc, VPFE_BLKCMP);
2636 ccdc->ccdc_ctx[VPFE_VDINT >> 2] = vpfe_reg_read(ccdc, VPFE_VDINT);
2637 ccdc->ccdc_ctx[VPFE_ALAW >> 2] = vpfe_reg_read(ccdc, VPFE_ALAW);
2638 ccdc->ccdc_ctx[VPFE_REC656IF >> 2] = vpfe_reg_read(ccdc, VPFE_REC656IF);
2639 ccdc->ccdc_ctx[VPFE_CCDCFG >> 2] = vpfe_reg_read(ccdc, VPFE_CCDCFG);
2640 ccdc->ccdc_ctx[VPFE_CULLING >> 2] = vpfe_reg_read(ccdc, VPFE_CULLING);
2641 ccdc->ccdc_ctx[VPFE_HD_VD_WID >> 2] = vpfe_reg_read(ccdc,
2642 VPFE_HD_VD_WID);
2643 ccdc->ccdc_ctx[VPFE_PIX_LINES >> 2] = vpfe_reg_read(ccdc,
2644 VPFE_PIX_LINES);
2645 ccdc->ccdc_ctx[VPFE_HORZ_INFO >> 2] = vpfe_reg_read(ccdc,
2646 VPFE_HORZ_INFO);
2647 ccdc->ccdc_ctx[VPFE_VERT_START >> 2] = vpfe_reg_read(ccdc,
2648 VPFE_VERT_START);
2649 ccdc->ccdc_ctx[VPFE_VERT_LINES >> 2] = vpfe_reg_read(ccdc,
2650 VPFE_VERT_LINES);
2651 ccdc->ccdc_ctx[VPFE_HSIZE_OFF >> 2] = vpfe_reg_read(ccdc,
2652 VPFE_HSIZE_OFF);
2653 }
2654
2655 static int vpfe_suspend(struct device *dev)
2656 {
2657 struct vpfe_device *vpfe = dev_get_drvdata(dev);
2658 struct vpfe_ccdc *ccdc = &vpfe->ccdc;
2659
2660
2661 if (!vb2_start_streaming_called(&vpfe->buffer_queue))
2662 return 0;
2663
2664 pm_runtime_get_sync(dev);
2665 vpfe_config_enable(ccdc, 1);
2666
2667
2668 vpfe_save_context(ccdc);
2669
2670
2671 vpfe_pcr_enable(ccdc, 0);
2672 vpfe_config_enable(ccdc, 0);
2673
2674
2675 pm_runtime_put_sync(dev);
2676
2677
2678 pinctrl_pm_select_sleep_state(dev);
2679
2680 return 0;
2681 }
2682
2683 static void vpfe_restore_context(struct vpfe_ccdc *ccdc)
2684 {
2685 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_SYNMODE >> 2], VPFE_SYNMODE);
2686 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_CULLING >> 2], VPFE_CULLING);
2687 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_SDOFST >> 2], VPFE_SDOFST);
2688 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_SDR_ADDR >> 2], VPFE_SDR_ADDR);
2689 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_CLAMP >> 2], VPFE_CLAMP);
2690 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_DCSUB >> 2], VPFE_DCSUB);
2691 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_COLPTN >> 2], VPFE_COLPTN);
2692 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_BLKCMP >> 2], VPFE_BLKCMP);
2693 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_VDINT >> 2], VPFE_VDINT);
2694 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_ALAW >> 2], VPFE_ALAW);
2695 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_REC656IF >> 2], VPFE_REC656IF);
2696 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_CCDCFG >> 2], VPFE_CCDCFG);
2697 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_PCR >> 2], VPFE_PCR);
2698 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_HD_VD_WID >> 2],
2699 VPFE_HD_VD_WID);
2700 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_PIX_LINES >> 2],
2701 VPFE_PIX_LINES);
2702 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_HORZ_INFO >> 2],
2703 VPFE_HORZ_INFO);
2704 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_VERT_START >> 2],
2705 VPFE_VERT_START);
2706 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_VERT_LINES >> 2],
2707 VPFE_VERT_LINES);
2708 vpfe_reg_write(ccdc, ccdc->ccdc_ctx[VPFE_HSIZE_OFF >> 2],
2709 VPFE_HSIZE_OFF);
2710 }
2711
2712 static int vpfe_resume(struct device *dev)
2713 {
2714 struct vpfe_device *vpfe = dev_get_drvdata(dev);
2715 struct vpfe_ccdc *ccdc = &vpfe->ccdc;
2716
2717
2718 if (!vb2_start_streaming_called(&vpfe->buffer_queue))
2719 return 0;
2720
2721
2722 pm_runtime_get_sync(dev);
2723 vpfe_config_enable(ccdc, 1);
2724
2725
2726 vpfe_restore_context(ccdc);
2727
2728 vpfe_config_enable(ccdc, 0);
2729 pm_runtime_put_sync(dev);
2730
2731
2732 pinctrl_pm_select_default_state(dev);
2733
2734 return 0;
2735 }
2736
2737 #endif
2738
2739 static SIMPLE_DEV_PM_OPS(vpfe_pm_ops, vpfe_suspend, vpfe_resume);
2740
2741 static const struct of_device_id vpfe_of_match[] = {
2742 { .compatible = "ti,am437x-vpfe", },
2743 { },
2744 };
2745 MODULE_DEVICE_TABLE(of, vpfe_of_match);
2746
2747 static struct platform_driver vpfe_driver = {
2748 .probe = vpfe_probe,
2749 .remove = vpfe_remove,
2750 .driver = {
2751 .name = VPFE_MODULE_NAME,
2752 .pm = &vpfe_pm_ops,
2753 .of_match_table = of_match_ptr(vpfe_of_match),
2754 },
2755 };
2756
2757 module_platform_driver(vpfe_driver);
2758
2759 MODULE_AUTHOR("Texas Instruments");
2760 MODULE_DESCRIPTION("TI AM437x VPFE driver");
2761 MODULE_LICENSE("GPL");
2762 MODULE_VERSION(VPFE_VERSION);