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path: root/drivers/media/video/davinci/dm355_ccdc.c
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-rw-r--r--drivers/media/video/davinci/dm355_ccdc.c978
1 files changed, 978 insertions, 0 deletions
diff --git a/drivers/media/video/davinci/dm355_ccdc.c b/drivers/media/video/davinci/dm355_ccdc.c
new file mode 100644
index 000000000000..4629cabe3f28
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+++ b/drivers/media/video/davinci/dm355_ccdc.c
@@ -0,0 +1,978 @@
1/*
2 * Copyright (C) 2005-2009 Texas Instruments Inc
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 *
18 * CCDC hardware module for DM355
19 * ------------------------------
20 *
21 * This module is for configuring DM355 CCD controller of VPFE to capture
22 * Raw yuv or Bayer RGB data from a decoder. CCDC has several modules
23 * such as Defect Pixel Correction, Color Space Conversion etc to
24 * pre-process the Bayer RGB data, before writing it to SDRAM. This
25 * module also allows application to configure individual
26 * module parameters through VPFE_CMD_S_CCDC_RAW_PARAMS IOCTL.
27 * To do so, application include dm355_ccdc.h and vpfe_capture.h header
28 * files. The setparams() API is called by vpfe_capture driver
29 * to configure module parameters
30 *
31 * TODO: 1) Raw bayer parameter settings and bayer capture
32 * 2) Split module parameter structure to module specific ioctl structs
33 * 3) add support for lense shading correction
34 * 4) investigate if enum used for user space type definition
35 * to be replaced by #defines or integer
36 */
37#include <linux/platform_device.h>
38#include <linux/uaccess.h>
39#include <linux/videodev2.h>
40#include <media/davinci/dm355_ccdc.h>
41#include <media/davinci/vpss.h>
42#include "dm355_ccdc_regs.h"
43#include "ccdc_hw_device.h"
44
45MODULE_LICENSE("GPL");
46MODULE_DESCRIPTION("CCDC Driver for DM355");
47MODULE_AUTHOR("Texas Instruments");
48
49static struct device *dev;
50
51/* Object for CCDC raw mode */
52static struct ccdc_params_raw ccdc_hw_params_raw = {
53 .pix_fmt = CCDC_PIXFMT_RAW,
54 .frm_fmt = CCDC_FRMFMT_PROGRESSIVE,
55 .win = CCDC_WIN_VGA,
56 .fid_pol = VPFE_PINPOL_POSITIVE,
57 .vd_pol = VPFE_PINPOL_POSITIVE,
58 .hd_pol = VPFE_PINPOL_POSITIVE,
59 .gain = {
60 .r_ye = 256,
61 .gb_g = 256,
62 .gr_cy = 256,
63 .b_mg = 256
64 },
65 .config_params = {
66 .datasft = 2,
67 .data_sz = CCDC_DATA_10BITS,
68 .mfilt1 = CCDC_NO_MEDIAN_FILTER1,
69 .mfilt2 = CCDC_NO_MEDIAN_FILTER2,
70 .alaw = {
71 .gama_wd = 2,
72 },
73 .blk_clamp = {
74 .sample_pixel = 1,
75 .dc_sub = 25
76 },
77 .col_pat_field0 = {
78 .olop = CCDC_GREEN_BLUE,
79 .olep = CCDC_BLUE,
80 .elop = CCDC_RED,
81 .elep = CCDC_GREEN_RED
82 },
83 .col_pat_field1 = {
84 .olop = CCDC_GREEN_BLUE,
85 .olep = CCDC_BLUE,
86 .elop = CCDC_RED,
87 .elep = CCDC_GREEN_RED
88 },
89 },
90};
91
92
93/* Object for CCDC ycbcr mode */
94static struct ccdc_params_ycbcr ccdc_hw_params_ycbcr = {
95 .win = CCDC_WIN_PAL,
96 .pix_fmt = CCDC_PIXFMT_YCBCR_8BIT,
97 .frm_fmt = CCDC_FRMFMT_INTERLACED,
98 .fid_pol = VPFE_PINPOL_POSITIVE,
99 .vd_pol = VPFE_PINPOL_POSITIVE,
100 .hd_pol = VPFE_PINPOL_POSITIVE,
101 .bt656_enable = 1,
102 .pix_order = CCDC_PIXORDER_CBYCRY,
103 .buf_type = CCDC_BUFTYPE_FLD_INTERLEAVED
104};
105
106static enum vpfe_hw_if_type ccdc_if_type;
107static void *__iomem ccdc_base_addr;
108static int ccdc_addr_size;
109
110/* Raw Bayer formats */
111static u32 ccdc_raw_bayer_pix_formats[] =
112 {V4L2_PIX_FMT_SBGGR8, V4L2_PIX_FMT_SBGGR16};
113
114/* Raw YUV formats */
115static u32 ccdc_raw_yuv_pix_formats[] =
116 {V4L2_PIX_FMT_UYVY, V4L2_PIX_FMT_YUYV};
117
118/* register access routines */
119static inline u32 regr(u32 offset)
120{
121 return __raw_readl(ccdc_base_addr + offset);
122}
123
124static inline void regw(u32 val, u32 offset)
125{
126 __raw_writel(val, ccdc_base_addr + offset);
127}
128
129static void ccdc_set_ccdc_base(void *addr, int size)
130{
131 ccdc_base_addr = addr;
132 ccdc_addr_size = size;
133}
134
135static void ccdc_enable(int en)
136{
137 unsigned int temp;
138 temp = regr(SYNCEN);
139 temp &= (~CCDC_SYNCEN_VDHDEN_MASK);
140 temp |= (en & CCDC_SYNCEN_VDHDEN_MASK);
141 regw(temp, SYNCEN);
142}
143
144static void ccdc_enable_output_to_sdram(int en)
145{
146 unsigned int temp;
147 temp = regr(SYNCEN);
148 temp &= (~(CCDC_SYNCEN_WEN_MASK));
149 temp |= ((en << CCDC_SYNCEN_WEN_SHIFT) & CCDC_SYNCEN_WEN_MASK);
150 regw(temp, SYNCEN);
151}
152
153static void ccdc_config_gain_offset(void)
154{
155 /* configure gain */
156 regw(ccdc_hw_params_raw.gain.r_ye, RYEGAIN);
157 regw(ccdc_hw_params_raw.gain.gr_cy, GRCYGAIN);
158 regw(ccdc_hw_params_raw.gain.gb_g, GBGGAIN);
159 regw(ccdc_hw_params_raw.gain.b_mg, BMGGAIN);
160 /* configure offset */
161 regw(ccdc_hw_params_raw.ccdc_offset, OFFSET);
162}
163
164/*
165 * ccdc_restore_defaults()
166 * This function restore power on defaults in the ccdc registers
167 */
168static int ccdc_restore_defaults(void)
169{
170 int i;
171
172 dev_dbg(dev, "\nstarting ccdc_restore_defaults...");
173 /* set all registers to zero */
174 for (i = 0; i <= CCDC_REG_LAST; i += 4)
175 regw(0, i);
176
177 /* now override the values with power on defaults in registers */
178 regw(MODESET_DEFAULT, MODESET);
179 /* no culling support */
180 regw(CULH_DEFAULT, CULH);
181 regw(CULV_DEFAULT, CULV);
182 /* Set default Gain and Offset */
183 ccdc_hw_params_raw.gain.r_ye = GAIN_DEFAULT;
184 ccdc_hw_params_raw.gain.gb_g = GAIN_DEFAULT;
185 ccdc_hw_params_raw.gain.gr_cy = GAIN_DEFAULT;
186 ccdc_hw_params_raw.gain.b_mg = GAIN_DEFAULT;
187 ccdc_config_gain_offset();
188 regw(OUTCLIP_DEFAULT, OUTCLIP);
189 regw(LSCCFG2_DEFAULT, LSCCFG2);
190 /* select ccdc input */
191 if (vpss_select_ccdc_source(VPSS_CCDCIN)) {
192 dev_dbg(dev, "\ncouldn't select ccdc input source");
193 return -EFAULT;
194 }
195 /* select ccdc clock */
196 if (vpss_enable_clock(VPSS_CCDC_CLOCK, 1) < 0) {
197 dev_dbg(dev, "\ncouldn't enable ccdc clock");
198 return -EFAULT;
199 }
200 dev_dbg(dev, "\nEnd of ccdc_restore_defaults...");
201 return 0;
202}
203
204static int ccdc_open(struct device *device)
205{
206 dev = device;
207 return ccdc_restore_defaults();
208}
209
210static int ccdc_close(struct device *device)
211{
212 /* disable clock */
213 vpss_enable_clock(VPSS_CCDC_CLOCK, 0);
214 /* do nothing for now */
215 return 0;
216}
217/*
218 * ccdc_setwin()
219 * This function will configure the window size to
220 * be capture in CCDC reg.
221 */
222static void ccdc_setwin(struct v4l2_rect *image_win,
223 enum ccdc_frmfmt frm_fmt, int ppc)
224{
225 int horz_start, horz_nr_pixels;
226 int vert_start, vert_nr_lines;
227 int mid_img = 0;
228
229 dev_dbg(dev, "\nStarting ccdc_setwin...");
230
231 /*
232 * ppc - per pixel count. indicates how many pixels per cell
233 * output to SDRAM. example, for ycbcr, it is one y and one c, so 2.
234 * raw capture this is 1
235 */
236 horz_start = image_win->left << (ppc - 1);
237 horz_nr_pixels = ((image_win->width) << (ppc - 1)) - 1;
238
239 /* Writing the horizontal info into the registers */
240 regw(horz_start, SPH);
241 regw(horz_nr_pixels, NPH);
242 vert_start = image_win->top;
243
244 if (frm_fmt == CCDC_FRMFMT_INTERLACED) {
245 vert_nr_lines = (image_win->height >> 1) - 1;
246 vert_start >>= 1;
247 /* Since first line doesn't have any data */
248 vert_start += 1;
249 /* configure VDINT0 and VDINT1 */
250 regw(vert_start, VDINT0);
251 } else {
252 /* Since first line doesn't have any data */
253 vert_start += 1;
254 vert_nr_lines = image_win->height - 1;
255 /* configure VDINT0 and VDINT1 */
256 mid_img = vert_start + (image_win->height / 2);
257 regw(vert_start, VDINT0);
258 regw(mid_img, VDINT1);
259 }
260 regw(vert_start & CCDC_START_VER_ONE_MASK, SLV0);
261 regw(vert_start & CCDC_START_VER_TWO_MASK, SLV1);
262 regw(vert_nr_lines & CCDC_NUM_LINES_VER, NLV);
263 dev_dbg(dev, "\nEnd of ccdc_setwin...");
264}
265
266static int validate_ccdc_param(struct ccdc_config_params_raw *ccdcparam)
267{
268 if (ccdcparam->datasft < CCDC_DATA_NO_SHIFT ||
269 ccdcparam->datasft > CCDC_DATA_SHIFT_6BIT) {
270 dev_dbg(dev, "Invalid value of data shift\n");
271 return -EINVAL;
272 }
273
274 if (ccdcparam->mfilt1 < CCDC_NO_MEDIAN_FILTER1 ||
275 ccdcparam->mfilt1 > CCDC_MEDIAN_FILTER1) {
276 dev_dbg(dev, "Invalid value of median filter1\n");
277 return -EINVAL;
278 }
279
280 if (ccdcparam->mfilt2 < CCDC_NO_MEDIAN_FILTER2 ||
281 ccdcparam->mfilt2 > CCDC_MEDIAN_FILTER2) {
282 dev_dbg(dev, "Invalid value of median filter2\n");
283 return -EINVAL;
284 }
285
286 if ((ccdcparam->med_filt_thres < 0) ||
287 (ccdcparam->med_filt_thres > CCDC_MED_FILT_THRESH)) {
288 dev_dbg(dev, "Invalid value of median filter thresold\n");
289 return -EINVAL;
290 }
291
292 if (ccdcparam->data_sz < CCDC_DATA_16BITS ||
293 ccdcparam->data_sz > CCDC_DATA_8BITS) {
294 dev_dbg(dev, "Invalid value of data size\n");
295 return -EINVAL;
296 }
297
298 if (ccdcparam->alaw.enable) {
299 if (ccdcparam->alaw.gama_wd < CCDC_GAMMA_BITS_13_4 ||
300 ccdcparam->alaw.gama_wd > CCDC_GAMMA_BITS_09_0) {
301 dev_dbg(dev, "Invalid value of ALAW\n");
302 return -EINVAL;
303 }
304 }
305
306 if (ccdcparam->blk_clamp.b_clamp_enable) {
307 if (ccdcparam->blk_clamp.sample_pixel < CCDC_SAMPLE_1PIXELS ||
308 ccdcparam->blk_clamp.sample_pixel > CCDC_SAMPLE_16PIXELS) {
309 dev_dbg(dev, "Invalid value of sample pixel\n");
310 return -EINVAL;
311 }
312 if (ccdcparam->blk_clamp.sample_ln < CCDC_SAMPLE_1LINES ||
313 ccdcparam->blk_clamp.sample_ln > CCDC_SAMPLE_16LINES) {
314 dev_dbg(dev, "Invalid value of sample lines\n");
315 return -EINVAL;
316 }
317 }
318 return 0;
319}
320
321/* Parameter operations */
322static int ccdc_set_params(void __user *params)
323{
324 struct ccdc_config_params_raw ccdc_raw_params;
325 int x;
326
327 /* only raw module parameters can be set through the IOCTL */
328 if (ccdc_if_type != VPFE_RAW_BAYER)
329 return -EINVAL;
330
331 x = copy_from_user(&ccdc_raw_params, params, sizeof(ccdc_raw_params));
332 if (x) {
333 dev_dbg(dev, "ccdc_set_params: error in copying ccdc"
334 "params, %d\n", x);
335 return -EFAULT;
336 }
337
338 if (!validate_ccdc_param(&ccdc_raw_params)) {
339 memcpy(&ccdc_hw_params_raw.config_params,
340 &ccdc_raw_params,
341 sizeof(ccdc_raw_params));
342 return 0;
343 }
344 return -EINVAL;
345}
346
347/* This function will configure CCDC for YCbCr video capture */
348static void ccdc_config_ycbcr(void)
349{
350 struct ccdc_params_ycbcr *params = &ccdc_hw_params_ycbcr;
351 u32 temp;
352
353 /* first set the CCDC power on defaults values in all registers */
354 dev_dbg(dev, "\nStarting ccdc_config_ycbcr...");
355 ccdc_restore_defaults();
356
357 /* configure pixel format & video frame format */
358 temp = (((params->pix_fmt & CCDC_INPUT_MODE_MASK) <<
359 CCDC_INPUT_MODE_SHIFT) |
360 ((params->frm_fmt & CCDC_FRM_FMT_MASK) <<
361 CCDC_FRM_FMT_SHIFT));
362
363 /* setup BT.656 sync mode */
364 if (params->bt656_enable) {
365 regw(CCDC_REC656IF_BT656_EN, REC656IF);
366 /*
367 * configure the FID, VD, HD pin polarity fld,hd pol positive,
368 * vd negative, 8-bit pack mode
369 */
370 temp |= CCDC_VD_POL_NEGATIVE;
371 } else { /* y/c external sync mode */
372 temp |= (((params->fid_pol & CCDC_FID_POL_MASK) <<
373 CCDC_FID_POL_SHIFT) |
374 ((params->hd_pol & CCDC_HD_POL_MASK) <<
375 CCDC_HD_POL_SHIFT) |
376 ((params->vd_pol & CCDC_VD_POL_MASK) <<
377 CCDC_VD_POL_SHIFT));
378 }
379
380 /* pack the data to 8-bit */
381 temp |= CCDC_DATA_PACK_ENABLE;
382
383 regw(temp, MODESET);
384
385 /* configure video window */
386 ccdc_setwin(&params->win, params->frm_fmt, 2);
387
388 /* configure the order of y cb cr in SD-RAM */
389 temp = (params->pix_order << CCDC_Y8POS_SHIFT);
390 temp |= CCDC_LATCH_ON_VSYNC_DISABLE | CCDC_CCDCFG_FIDMD_NO_LATCH_VSYNC;
391 regw(temp, CCDCFG);
392
393 /*
394 * configure the horizontal line offset. This is done by rounding up
395 * width to a multiple of 16 pixels and multiply by two to account for
396 * y:cb:cr 4:2:2 data
397 */
398 regw(((params->win.width * 2 + 31) >> 5), HSIZE);
399
400 /* configure the memory line offset */
401 if (params->buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED) {
402 /* two fields are interleaved in memory */
403 regw(CCDC_SDOFST_FIELD_INTERLEAVED, SDOFST);
404 }
405
406 dev_dbg(dev, "\nEnd of ccdc_config_ycbcr...\n");
407}
408
409/*
410 * ccdc_config_black_clamp()
411 * configure parameters for Optical Black Clamp
412 */
413static void ccdc_config_black_clamp(struct ccdc_black_clamp *bclamp)
414{
415 u32 val;
416
417 if (!bclamp->b_clamp_enable) {
418 /* configure DCSub */
419 regw(bclamp->dc_sub & CCDC_BLK_DC_SUB_MASK, DCSUB);
420 regw(0x0000, CLAMP);
421 return;
422 }
423 /* Enable the Black clamping, set sample lines and pixels */
424 val = (bclamp->start_pixel & CCDC_BLK_ST_PXL_MASK) |
425 ((bclamp->sample_pixel & CCDC_BLK_SAMPLE_LN_MASK) <<
426 CCDC_BLK_SAMPLE_LN_SHIFT) | CCDC_BLK_CLAMP_ENABLE;
427 regw(val, CLAMP);
428
429 /* If Black clamping is enable then make dcsub 0 */
430 val = (bclamp->sample_ln & CCDC_NUM_LINE_CALC_MASK)
431 << CCDC_NUM_LINE_CALC_SHIFT;
432 regw(val, DCSUB);
433}
434
435/*
436 * ccdc_config_black_compense()
437 * configure parameters for Black Compensation
438 */
439static void ccdc_config_black_compense(struct ccdc_black_compensation *bcomp)
440{
441 u32 val;
442
443 val = (bcomp->b & CCDC_BLK_COMP_MASK) |
444 ((bcomp->gb & CCDC_BLK_COMP_MASK) <<
445 CCDC_BLK_COMP_GB_COMP_SHIFT);
446 regw(val, BLKCMP1);
447
448 val = ((bcomp->gr & CCDC_BLK_COMP_MASK) <<
449 CCDC_BLK_COMP_GR_COMP_SHIFT) |
450 ((bcomp->r & CCDC_BLK_COMP_MASK) <<
451 CCDC_BLK_COMP_R_COMP_SHIFT);
452 regw(val, BLKCMP0);
453}
454
455/*
456 * ccdc_write_dfc_entry()
457 * write an entry in the dfc table.
458 */
459int ccdc_write_dfc_entry(int index, struct ccdc_vertical_dft *dfc)
460{
461/* TODO This is to be re-visited and adjusted */
462#define DFC_WRITE_WAIT_COUNT 1000
463 u32 val, count = DFC_WRITE_WAIT_COUNT;
464
465 regw(dfc->dft_corr_vert[index], DFCMEM0);
466 regw(dfc->dft_corr_horz[index], DFCMEM1);
467 regw(dfc->dft_corr_sub1[index], DFCMEM2);
468 regw(dfc->dft_corr_sub2[index], DFCMEM3);
469 regw(dfc->dft_corr_sub3[index], DFCMEM4);
470 /* set WR bit to write */
471 val = regr(DFCMEMCTL) | CCDC_DFCMEMCTL_DFCMWR_MASK;
472 regw(val, DFCMEMCTL);
473
474 /*
475 * Assume, it is very short. If we get an error, we need to
476 * adjust this value
477 */
478 while (regr(DFCMEMCTL) & CCDC_DFCMEMCTL_DFCMWR_MASK)
479 count--;
480 /*
481 * TODO We expect the count to be non-zero to be successful. Adjust
482 * the count if write requires more time
483 */
484
485 if (count) {
486 dev_err(dev, "defect table write timeout !!!\n");
487 return -1;
488 }
489 return 0;
490}
491
492/*
493 * ccdc_config_vdfc()
494 * configure parameters for Vertical Defect Correction
495 */
496static int ccdc_config_vdfc(struct ccdc_vertical_dft *dfc)
497{
498 u32 val;
499 int i;
500
501 /* Configure General Defect Correction. The table used is from IPIPE */
502 val = dfc->gen_dft_en & CCDC_DFCCTL_GDFCEN_MASK;
503
504 /* Configure Vertical Defect Correction if needed */
505 if (!dfc->ver_dft_en) {
506 /* Enable only General Defect Correction */
507 regw(val, DFCCTL);
508 return 0;
509 }
510
511 if (dfc->table_size > CCDC_DFT_TABLE_SIZE)
512 return -EINVAL;
513
514 val |= CCDC_DFCCTL_VDFC_DISABLE;
515 val |= (dfc->dft_corr_ctl.vdfcsl & CCDC_DFCCTL_VDFCSL_MASK) <<
516 CCDC_DFCCTL_VDFCSL_SHIFT;
517 val |= (dfc->dft_corr_ctl.vdfcuda & CCDC_DFCCTL_VDFCUDA_MASK) <<
518 CCDC_DFCCTL_VDFCUDA_SHIFT;
519 val |= (dfc->dft_corr_ctl.vdflsft & CCDC_DFCCTL_VDFLSFT_MASK) <<
520 CCDC_DFCCTL_VDFLSFT_SHIFT;
521 regw(val , DFCCTL);
522
523 /* clear address ptr to offset 0 */
524 val = CCDC_DFCMEMCTL_DFCMARST_MASK << CCDC_DFCMEMCTL_DFCMARST_SHIFT;
525
526 /* write defect table entries */
527 for (i = 0; i < dfc->table_size; i++) {
528 /* increment address for non zero index */
529 if (i != 0)
530 val = CCDC_DFCMEMCTL_INC_ADDR;
531 regw(val, DFCMEMCTL);
532 if (ccdc_write_dfc_entry(i, dfc) < 0)
533 return -EFAULT;
534 }
535
536 /* update saturation level and enable dfc */
537 regw(dfc->saturation_ctl & CCDC_VDC_DFCVSAT_MASK, DFCVSAT);
538 val = regr(DFCCTL) | (CCDC_DFCCTL_VDFCEN_MASK <<
539 CCDC_DFCCTL_VDFCEN_SHIFT);
540 regw(val, DFCCTL);
541 return 0;
542}
543
544/*
545 * ccdc_config_csc()
546 * configure parameters for color space conversion
547 * Each register CSCM0-7 has two values in S8Q5 format.
548 */
549static void ccdc_config_csc(struct ccdc_csc *csc)
550{
551 u32 val1, val2;
552 int i;
553
554 if (!csc->enable)
555 return;
556
557 /* Enable the CSC sub-module */
558 regw(CCDC_CSC_ENABLE, CSCCTL);
559
560 /* Converting the co-eff as per the format of the register */
561 for (i = 0; i < CCDC_CSC_COEFF_TABLE_SIZE; i++) {
562 if ((i % 2) == 0) {
563 /* CSCM - LSB */
564 val1 = (csc->coeff[i].integer &
565 CCDC_CSC_COEF_INTEG_MASK)
566 << CCDC_CSC_COEF_INTEG_SHIFT;
567 /*
568 * convert decimal part to binary. Use 2 decimal
569 * precision, user values range from .00 - 0.99
570 */
571 val1 |= (((csc->coeff[i].decimal &
572 CCDC_CSC_COEF_DECIMAL_MASK) *
573 CCDC_CSC_DEC_MAX) / 100);
574 } else {
575
576 /* CSCM - MSB */
577 val2 = (csc->coeff[i].integer &
578 CCDC_CSC_COEF_INTEG_MASK)
579 << CCDC_CSC_COEF_INTEG_SHIFT;
580 val2 |= (((csc->coeff[i].decimal &
581 CCDC_CSC_COEF_DECIMAL_MASK) *
582 CCDC_CSC_DEC_MAX) / 100);
583 val2 <<= CCDC_CSCM_MSB_SHIFT;
584 val2 |= val1;
585 regw(val2, (CSCM0 + ((i - 1) << 1)));
586 }
587 }
588}
589
590/*
591 * ccdc_config_color_patterns()
592 * configure parameters for color patterns
593 */
594static void ccdc_config_color_patterns(struct ccdc_col_pat *pat0,
595 struct ccdc_col_pat *pat1)
596{
597 u32 val;
598
599 val = (pat0->olop | (pat0->olep << 2) | (pat0->elop << 4) |
600 (pat0->elep << 6) | (pat1->olop << 8) | (pat1->olep << 10) |
601 (pat1->elop << 12) | (pat1->elep << 14));
602 regw(val, COLPTN);
603}
604
605/* This function will configure CCDC for Raw mode image capture */
606static int ccdc_config_raw(void)
607{
608 struct ccdc_params_raw *params = &ccdc_hw_params_raw;
609 struct ccdc_config_params_raw *config_params =
610 &ccdc_hw_params_raw.config_params;
611 unsigned int val;
612
613 dev_dbg(dev, "\nStarting ccdc_config_raw...");
614
615 /* restore power on defaults to register */
616 ccdc_restore_defaults();
617
618 /* CCDCFG register:
619 * set CCD Not to swap input since input is RAW data
620 * set FID detection function to Latch at V-Sync
621 * set WENLOG - ccdc valid area to AND
622 * set TRGSEL to WENBIT
623 * set EXTRG to DISABLE
624 * disable latching function on VSYNC - shadowed registers
625 */
626 regw(CCDC_YCINSWP_RAW | CCDC_CCDCFG_FIDMD_LATCH_VSYNC |
627 CCDC_CCDCFG_WENLOG_AND | CCDC_CCDCFG_TRGSEL_WEN |
628 CCDC_CCDCFG_EXTRG_DISABLE | CCDC_LATCH_ON_VSYNC_DISABLE, CCDCFG);
629
630 /*
631 * Set VDHD direction to input, input type to raw input
632 * normal data polarity, do not use external WEN
633 */
634 val = (CCDC_VDHDOUT_INPUT | CCDC_RAW_IP_MODE | CCDC_DATAPOL_NORMAL |
635 CCDC_EXWEN_DISABLE);
636
637 /*
638 * Configure the vertical sync polarity (MODESET.VDPOL), horizontal
639 * sync polarity (MODESET.HDPOL), field id polarity (MODESET.FLDPOL),
640 * frame format(progressive or interlace), & pixel format (Input mode)
641 */
642 val |= (((params->vd_pol & CCDC_VD_POL_MASK) << CCDC_VD_POL_SHIFT) |
643 ((params->hd_pol & CCDC_HD_POL_MASK) << CCDC_HD_POL_SHIFT) |
644 ((params->fid_pol & CCDC_FID_POL_MASK) << CCDC_FID_POL_SHIFT) |
645 ((params->frm_fmt & CCDC_FRM_FMT_MASK) << CCDC_FRM_FMT_SHIFT) |
646 ((params->pix_fmt & CCDC_PIX_FMT_MASK) << CCDC_PIX_FMT_SHIFT));
647
648 /* set pack for alaw compression */
649 if ((config_params->data_sz == CCDC_DATA_8BITS) ||
650 config_params->alaw.enable)
651 val |= CCDC_DATA_PACK_ENABLE;
652
653 /* Configure for LPF */
654 if (config_params->lpf_enable)
655 val |= (config_params->lpf_enable & CCDC_LPF_MASK) <<
656 CCDC_LPF_SHIFT;
657
658 /* Configure the data shift */
659 val |= (config_params->datasft & CCDC_DATASFT_MASK) <<
660 CCDC_DATASFT_SHIFT;
661 regw(val , MODESET);
662 dev_dbg(dev, "\nWriting 0x%x to MODESET...\n", val);
663
664 /* Configure the Median Filter threshold */
665 regw((config_params->med_filt_thres) & CCDC_MED_FILT_THRESH, MEDFILT);
666
667 /* Configure GAMMAWD register. defaur 11-2, and Mosaic cfa pattern */
668 val = CCDC_GAMMA_BITS_11_2 << CCDC_GAMMAWD_INPUT_SHIFT |
669 CCDC_CFA_MOSAIC;
670
671 /* Enable and configure aLaw register if needed */
672 if (config_params->alaw.enable) {
673 val |= (CCDC_ALAW_ENABLE |
674 ((config_params->alaw.gama_wd &
675 CCDC_ALAW_GAMA_WD_MASK) <<
676 CCDC_GAMMAWD_INPUT_SHIFT));
677 }
678
679 /* Configure Median filter1 & filter2 */
680 val |= ((config_params->mfilt1 << CCDC_MFILT1_SHIFT) |
681 (config_params->mfilt2 << CCDC_MFILT2_SHIFT));
682
683 regw(val, GAMMAWD);
684 dev_dbg(dev, "\nWriting 0x%x to GAMMAWD...\n", val);
685
686 /* configure video window */
687 ccdc_setwin(&params->win, params->frm_fmt, 1);
688
689 /* Optical Clamp Averaging */
690 ccdc_config_black_clamp(&config_params->blk_clamp);
691
692 /* Black level compensation */
693 ccdc_config_black_compense(&config_params->blk_comp);
694
695 /* Vertical Defect Correction if needed */
696 if (ccdc_config_vdfc(&config_params->vertical_dft) < 0)
697 return -EFAULT;
698
699 /* color space conversion */
700 ccdc_config_csc(&config_params->csc);
701
702 /* color pattern */
703 ccdc_config_color_patterns(&config_params->col_pat_field0,
704 &config_params->col_pat_field1);
705
706 /* Configure the Gain & offset control */
707 ccdc_config_gain_offset();
708
709 dev_dbg(dev, "\nWriting %x to COLPTN...\n", val);
710
711 /* Configure DATAOFST register */
712 val = (config_params->data_offset.horz_offset & CCDC_DATAOFST_MASK) <<
713 CCDC_DATAOFST_H_SHIFT;
714 val |= (config_params->data_offset.vert_offset & CCDC_DATAOFST_MASK) <<
715 CCDC_DATAOFST_V_SHIFT;
716 regw(val, DATAOFST);
717
718 /* configuring HSIZE register */
719 val = (params->horz_flip_enable & CCDC_HSIZE_FLIP_MASK) <<
720 CCDC_HSIZE_FLIP_SHIFT;
721
722 /* If pack 8 is enable then 1 pixel will take 1 byte */
723 if ((config_params->data_sz == CCDC_DATA_8BITS) ||
724 config_params->alaw.enable) {
725 val |= (((params->win.width) + 31) >> 5) &
726 CCDC_HSIZE_VAL_MASK;
727
728 /* adjust to multiple of 32 */
729 dev_dbg(dev, "\nWriting 0x%x to HSIZE...\n",
730 (((params->win.width) + 31) >> 5) &
731 CCDC_HSIZE_VAL_MASK);
732 } else {
733 /* else one pixel will take 2 byte */
734 val |= (((params->win.width * 2) + 31) >> 5) &
735 CCDC_HSIZE_VAL_MASK;
736
737 dev_dbg(dev, "\nWriting 0x%x to HSIZE...\n",
738 (((params->win.width * 2) + 31) >> 5) &
739 CCDC_HSIZE_VAL_MASK);
740 }
741 regw(val, HSIZE);
742
743 /* Configure SDOFST register */
744 if (params->frm_fmt == CCDC_FRMFMT_INTERLACED) {
745 if (params->image_invert_enable) {
746 /* For interlace inverse mode */
747 regw(CCDC_SDOFST_INTERLACE_INVERSE, SDOFST);
748 dev_dbg(dev, "\nWriting %x to SDOFST...\n",
749 CCDC_SDOFST_INTERLACE_INVERSE);
750 } else {
751 /* For interlace non inverse mode */
752 regw(CCDC_SDOFST_INTERLACE_NORMAL, SDOFST);
753 dev_dbg(dev, "\nWriting %x to SDOFST...\n",
754 CCDC_SDOFST_INTERLACE_NORMAL);
755 }
756 } else if (params->frm_fmt == CCDC_FRMFMT_PROGRESSIVE) {
757 if (params->image_invert_enable) {
758 /* For progessive inverse mode */
759 regw(CCDC_SDOFST_PROGRESSIVE_INVERSE, SDOFST);
760 dev_dbg(dev, "\nWriting %x to SDOFST...\n",
761 CCDC_SDOFST_PROGRESSIVE_INVERSE);
762 } else {
763 /* For progessive non inverse mode */
764 regw(CCDC_SDOFST_PROGRESSIVE_NORMAL, SDOFST);
765 dev_dbg(dev, "\nWriting %x to SDOFST...\n",
766 CCDC_SDOFST_PROGRESSIVE_NORMAL);
767 }
768 }
769 dev_dbg(dev, "\nend of ccdc_config_raw...");
770 return 0;
771}
772
773static int ccdc_configure(void)
774{
775 if (ccdc_if_type == VPFE_RAW_BAYER)
776 return ccdc_config_raw();
777 else
778 ccdc_config_ycbcr();
779 return 0;
780}
781
782static int ccdc_set_buftype(enum ccdc_buftype buf_type)
783{
784 if (ccdc_if_type == VPFE_RAW_BAYER)
785 ccdc_hw_params_raw.buf_type = buf_type;
786 else
787 ccdc_hw_params_ycbcr.buf_type = buf_type;
788 return 0;
789}
790static enum ccdc_buftype ccdc_get_buftype(void)
791{
792 if (ccdc_if_type == VPFE_RAW_BAYER)
793 return ccdc_hw_params_raw.buf_type;
794 return ccdc_hw_params_ycbcr.buf_type;
795}
796
797static int ccdc_enum_pix(u32 *pix, int i)
798{
799 int ret = -EINVAL;
800 if (ccdc_if_type == VPFE_RAW_BAYER) {
801 if (i < ARRAY_SIZE(ccdc_raw_bayer_pix_formats)) {
802 *pix = ccdc_raw_bayer_pix_formats[i];
803 ret = 0;
804 }
805 } else {
806 if (i < ARRAY_SIZE(ccdc_raw_yuv_pix_formats)) {
807 *pix = ccdc_raw_yuv_pix_formats[i];
808 ret = 0;
809 }
810 }
811 return ret;
812}
813
814static int ccdc_set_pixel_format(u32 pixfmt)
815{
816 struct ccdc_a_law *alaw =
817 &ccdc_hw_params_raw.config_params.alaw;
818
819 if (ccdc_if_type == VPFE_RAW_BAYER) {
820 ccdc_hw_params_raw.pix_fmt = CCDC_PIXFMT_RAW;
821 if (pixfmt == V4L2_PIX_FMT_SBGGR8)
822 alaw->enable = 1;
823 else if (pixfmt != V4L2_PIX_FMT_SBGGR16)
824 return -EINVAL;
825 } else {
826 if (pixfmt == V4L2_PIX_FMT_YUYV)
827 ccdc_hw_params_ycbcr.pix_order = CCDC_PIXORDER_YCBYCR;
828 else if (pixfmt == V4L2_PIX_FMT_UYVY)
829 ccdc_hw_params_ycbcr.pix_order = CCDC_PIXORDER_CBYCRY;
830 else
831 return -EINVAL;
832 }
833 return 0;
834}
835static u32 ccdc_get_pixel_format(void)
836{
837 struct ccdc_a_law *alaw =
838 &ccdc_hw_params_raw.config_params.alaw;
839 u32 pixfmt;
840
841 if (ccdc_if_type == VPFE_RAW_BAYER)
842 if (alaw->enable)
843 pixfmt = V4L2_PIX_FMT_SBGGR8;
844 else
845 pixfmt = V4L2_PIX_FMT_SBGGR16;
846 else {
847 if (ccdc_hw_params_ycbcr.pix_order == CCDC_PIXORDER_YCBYCR)
848 pixfmt = V4L2_PIX_FMT_YUYV;
849 else
850 pixfmt = V4L2_PIX_FMT_UYVY;
851 }
852 return pixfmt;
853}
854static int ccdc_set_image_window(struct v4l2_rect *win)
855{
856 if (ccdc_if_type == VPFE_RAW_BAYER)
857 ccdc_hw_params_raw.win = *win;
858 else
859 ccdc_hw_params_ycbcr.win = *win;
860 return 0;
861}
862
863static void ccdc_get_image_window(struct v4l2_rect *win)
864{
865 if (ccdc_if_type == VPFE_RAW_BAYER)
866 *win = ccdc_hw_params_raw.win;
867 else
868 *win = ccdc_hw_params_ycbcr.win;
869}
870
871static unsigned int ccdc_get_line_length(void)
872{
873 struct ccdc_config_params_raw *config_params =
874 &ccdc_hw_params_raw.config_params;
875 unsigned int len;
876
877 if (ccdc_if_type == VPFE_RAW_BAYER) {
878 if ((config_params->alaw.enable) ||
879 (config_params->data_sz == CCDC_DATA_8BITS))
880 len = ccdc_hw_params_raw.win.width;
881 else
882 len = ccdc_hw_params_raw.win.width * 2;
883 } else
884 len = ccdc_hw_params_ycbcr.win.width * 2;
885 return ALIGN(len, 32);
886}
887
888static int ccdc_set_frame_format(enum ccdc_frmfmt frm_fmt)
889{
890 if (ccdc_if_type == VPFE_RAW_BAYER)
891 ccdc_hw_params_raw.frm_fmt = frm_fmt;
892 else
893 ccdc_hw_params_ycbcr.frm_fmt = frm_fmt;
894 return 0;
895}
896
897static enum ccdc_frmfmt ccdc_get_frame_format(void)
898{
899 if (ccdc_if_type == VPFE_RAW_BAYER)
900 return ccdc_hw_params_raw.frm_fmt;
901 else
902 return ccdc_hw_params_ycbcr.frm_fmt;
903}
904
905static int ccdc_getfid(void)
906{
907 return (regr(MODESET) >> 15) & 1;
908}
909
910/* misc operations */
911static inline void ccdc_setfbaddr(unsigned long addr)
912{
913 regw((addr >> 21) & 0x007f, STADRH);
914 regw((addr >> 5) & 0x0ffff, STADRL);
915}
916
917static int ccdc_set_hw_if_params(struct vpfe_hw_if_param *params)
918{
919 ccdc_if_type = params->if_type;
920
921 switch (params->if_type) {
922 case VPFE_BT656:
923 case VPFE_YCBCR_SYNC_16:
924 case VPFE_YCBCR_SYNC_8:
925 ccdc_hw_params_ycbcr.vd_pol = params->vdpol;
926 ccdc_hw_params_ycbcr.hd_pol = params->hdpol;
927 break;
928 default:
929 /* TODO add support for raw bayer here */
930 return -EINVAL;
931 }
932 return 0;
933}
934
935static struct ccdc_hw_device ccdc_hw_dev = {
936 .name = "DM355 CCDC",
937 .owner = THIS_MODULE,
938 .hw_ops = {
939 .open = ccdc_open,
940 .close = ccdc_close,
941 .set_ccdc_base = ccdc_set_ccdc_base,
942 .enable = ccdc_enable,
943 .enable_out_to_sdram = ccdc_enable_output_to_sdram,
944 .set_hw_if_params = ccdc_set_hw_if_params,
945 .set_params = ccdc_set_params,
946 .configure = ccdc_configure,
947 .set_buftype = ccdc_set_buftype,
948 .get_buftype = ccdc_get_buftype,
949 .enum_pix = ccdc_enum_pix,
950 .set_pixel_format = ccdc_set_pixel_format,
951 .get_pixel_format = ccdc_get_pixel_format,
952 .set_frame_format = ccdc_set_frame_format,
953 .get_frame_format = ccdc_get_frame_format,
954 .set_image_window = ccdc_set_image_window,
955 .get_image_window = ccdc_get_image_window,
956 .get_line_length = ccdc_get_line_length,
957 .setfbaddr = ccdc_setfbaddr,
958 .getfid = ccdc_getfid,
959 },
960};
961
962static int dm355_ccdc_init(void)
963{
964 printk(KERN_NOTICE "dm355_ccdc_init\n");
965 if (vpfe_register_ccdc_device(&ccdc_hw_dev) < 0)
966 return -1;
967 printk(KERN_NOTICE "%s is registered with vpfe.\n",
968 ccdc_hw_dev.name);
969 return 0;
970}
971
972static void dm355_ccdc_exit(void)
973{
974 vpfe_unregister_ccdc_device(&ccdc_hw_dev);
975}
976
977module_init(dm355_ccdc_init);
978module_exit(dm355_ccdc_exit);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-11 07:52:45 -0500