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OMAP3: SR: Replace printk's with pr_* calls
[linux-ginger.git] / drivers / media / video / davinci / dm644x_ccdc.c
blob2f19a919f4778c18d03059dbadcd74bb4a38cb03
1 /*
2 * Copyright (C) 2006-2009 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 DM6446
19 * ------------------------------
20 *
21 * This module is for configuring CCD controller of DM6446 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 Raw 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 includes dm644x_ccdc.h and vpfe_capture.h header
28 * files. The setparams() API is called by vpfe_capture driver
29 * to configure module parameters. This file is named DM644x so that other
30 * variants such DM6443 may be supported using the same module.
31 *
32 * TODO: Test Raw bayer parameter settings and bayer capture
33 * Split module parameter structure to module specific ioctl structs
34 * 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/dm644x_ccdc.h>
41 #include <media/davinci/vpss.h>
42 #include "dm644x_ccdc_regs.h"
43 #include "ccdc_hw_device.h"
44
45 MODULE_LICENSE("GPL");
46 MODULE_DESCRIPTION("CCDC Driver for DM6446");
47 MODULE_AUTHOR("Texas Instruments");
48
49 static struct device *dev;
50
51 /* Object for CCDC raw mode */
52 static 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 .config_params = {
60 .data_sz = CCDC_DATA_10BITS,
61 },
62 };
63
64 /* Object for CCDC ycbcr mode */
65 static struct ccdc_params_ycbcr ccdc_hw_params_ycbcr = {
66 .pix_fmt = CCDC_PIXFMT_YCBCR_8BIT,
67 .frm_fmt = CCDC_FRMFMT_INTERLACED,
68 .win = CCDC_WIN_PAL,
69 .fid_pol = VPFE_PINPOL_POSITIVE,
70 .vd_pol = VPFE_PINPOL_POSITIVE,
71 .hd_pol = VPFE_PINPOL_POSITIVE,
72 .bt656_enable = 1,
73 .pix_order = CCDC_PIXORDER_CBYCRY,
74 .buf_type = CCDC_BUFTYPE_FLD_INTERLEAVED
75 };
76
77 #define CCDC_MAX_RAW_YUV_FORMATS 2
78
79 /* Raw Bayer formats */
80 static u32 ccdc_raw_bayer_pix_formats[] =
81 {V4L2_PIX_FMT_SBGGR8, V4L2_PIX_FMT_SBGGR16};
82
83 /* Raw YUV formats */
84 static u32 ccdc_raw_yuv_pix_formats[] =
85 {V4L2_PIX_FMT_UYVY, V4L2_PIX_FMT_YUYV};
86
87 static void *__iomem ccdc_base_addr;
88 static int ccdc_addr_size;
89 static enum vpfe_hw_if_type ccdc_if_type;
90
91 /* register access routines */
92 static inline u32 regr(u32 offset)
93 {
94 return __raw_readl(ccdc_base_addr + offset);
95 }
96
97 static inline void regw(u32 val, u32 offset)
98 {
99 __raw_writel(val, ccdc_base_addr + offset);
100 }
101
102 static void ccdc_set_ccdc_base(void *addr, int size)
103 {
104 ccdc_base_addr = addr;
105 ccdc_addr_size = size;
106 }
107
108 static void ccdc_enable(int flag)
109 {
110 regw(flag, CCDC_PCR);
111 }
112
113 static void ccdc_enable_vport(int flag)
114 {
115 if (flag)
116 /* enable video port */
117 regw(CCDC_ENABLE_VIDEO_PORT, CCDC_FMTCFG);
118 else
119 regw(CCDC_DISABLE_VIDEO_PORT, CCDC_FMTCFG);
120 }
121
122 /*
123 * ccdc_setwin()
124 * This function will configure the window size
125 * to be capture in CCDC reg
126 */
127 void ccdc_setwin(struct v4l2_rect *image_win,
128 enum ccdc_frmfmt frm_fmt,
129 int ppc)
130 {
131 int horz_start, horz_nr_pixels;
132 int vert_start, vert_nr_lines;
133 int val = 0, mid_img = 0;
134
135 dev_dbg(dev, "\nStarting ccdc_setwin...");
136 /*
137 * ppc - per pixel count. indicates how many pixels per cell
138 * output to SDRAM. example, for ycbcr, it is one y and one c, so 2.
139 * raw capture this is 1
140 */
141 horz_start = image_win->left << (ppc - 1);
142 horz_nr_pixels = (image_win->width << (ppc - 1)) - 1;
143 regw((horz_start << CCDC_HORZ_INFO_SPH_SHIFT) | horz_nr_pixels,
144 CCDC_HORZ_INFO);
145
146 vert_start = image_win->top;
147
148 if (frm_fmt == CCDC_FRMFMT_INTERLACED) {
149 vert_nr_lines = (image_win->height >> 1) - 1;
150 vert_start >>= 1;
151 /* Since first line doesn't have any data */
152 vert_start += 1;
153 /* configure VDINT0 */
154 val = (vert_start << CCDC_VDINT_VDINT0_SHIFT);
155 regw(val, CCDC_VDINT);
156
157 } else {
158 /* Since first line doesn't have any data */
159 vert_start += 1;
160 vert_nr_lines = image_win->height - 1;
161 /*
162 * configure VDINT0 and VDINT1. VDINT1 will be at half
163 * of image height
164 */
165 mid_img = vert_start + (image_win->height / 2);
166 val = (vert_start << CCDC_VDINT_VDINT0_SHIFT) |
167 (mid_img & CCDC_VDINT_VDINT1_MASK);
168 regw(val, CCDC_VDINT);
169
170 }
171 regw((vert_start << CCDC_VERT_START_SLV0_SHIFT) | vert_start,
172 CCDC_VERT_START);
173 regw(vert_nr_lines, CCDC_VERT_LINES);
174 dev_dbg(dev, "\nEnd of ccdc_setwin...");
175 }
176
177 static void ccdc_readregs(void)
178 {
179 unsigned int val = 0;
180
181 val = regr(CCDC_ALAW);
182 dev_notice(dev, "\nReading 0x%x to ALAW...\n", val);
183 val = regr(CCDC_CLAMP);
184 dev_notice(dev, "\nReading 0x%x to CLAMP...\n", val);
185 val = regr(CCDC_DCSUB);
186 dev_notice(dev, "\nReading 0x%x to DCSUB...\n", val);
187 val = regr(CCDC_BLKCMP);
188 dev_notice(dev, "\nReading 0x%x to BLKCMP...\n", val);
189 val = regr(CCDC_FPC_ADDR);
190 dev_notice(dev, "\nReading 0x%x to FPC_ADDR...\n", val);
191 val = regr(CCDC_FPC);
192 dev_notice(dev, "\nReading 0x%x to FPC...\n", val);
193 val = regr(CCDC_FMTCFG);
194 dev_notice(dev, "\nReading 0x%x to FMTCFG...\n", val);
195 val = regr(CCDC_COLPTN);
196 dev_notice(dev, "\nReading 0x%x to COLPTN...\n", val);
197 val = regr(CCDC_FMT_HORZ);
198 dev_notice(dev, "\nReading 0x%x to FMT_HORZ...\n", val);
199 val = regr(CCDC_FMT_VERT);
200 dev_notice(dev, "\nReading 0x%x to FMT_VERT...\n", val);
201 val = regr(CCDC_HSIZE_OFF);
202 dev_notice(dev, "\nReading 0x%x to HSIZE_OFF...\n", val);
203 val = regr(CCDC_SDOFST);
204 dev_notice(dev, "\nReading 0x%x to SDOFST...\n", val);
205 val = regr(CCDC_VP_OUT);
206 dev_notice(dev, "\nReading 0x%x to VP_OUT...\n", val);
207 val = regr(CCDC_SYN_MODE);
208 dev_notice(dev, "\nReading 0x%x to SYN_MODE...\n", val);
209 val = regr(CCDC_HORZ_INFO);
210 dev_notice(dev, "\nReading 0x%x to HORZ_INFO...\n", val);
211 val = regr(CCDC_VERT_START);
212 dev_notice(dev, "\nReading 0x%x to VERT_START...\n", val);
213 val = regr(CCDC_VERT_LINES);
214 dev_notice(dev, "\nReading 0x%x to VERT_LINES...\n", val);
215 }
216
217 static int validate_ccdc_param(struct ccdc_config_params_raw *ccdcparam)
218 {
219 if (ccdcparam->alaw.enable) {
220 if ((ccdcparam->alaw.gama_wd > CCDC_GAMMA_BITS_09_0) ||
221 (ccdcparam->alaw.gama_wd < CCDC_GAMMA_BITS_15_6) ||
222 (ccdcparam->alaw.gama_wd < ccdcparam->data_sz)) {
223 dev_dbg(dev, "\nInvalid data line select");
224 return -1;
225 }
226 }
227 return 0;
228 }
229
230 static int ccdc_update_raw_params(struct ccdc_config_params_raw *raw_params)
231 {
232 struct ccdc_config_params_raw *config_params =
233 &ccdc_hw_params_raw.config_params;
234 unsigned int *fpc_virtaddr = NULL;
235 unsigned int *fpc_physaddr = NULL;
236
237 memcpy(config_params, raw_params, sizeof(*raw_params));
238 /*
239 * allocate memory for fault pixel table and copy the user
240 * values to the table
241 */
242 if (!config_params->fault_pxl.enable)
243 return 0;
244
245 fpc_physaddr = (unsigned int *)config_params->fault_pxl.fpc_table_addr;
246 fpc_virtaddr = (unsigned int *)phys_to_virt(
247 (unsigned long)fpc_physaddr);
248 /*
249 * Allocate memory for FPC table if current
250 * FPC table buffer is not big enough to
251 * accomodate FPC Number requested
252 */
253 if (raw_params->fault_pxl.fp_num != config_params->fault_pxl.fp_num) {
254 if (fpc_physaddr != NULL) {
255 free_pages((unsigned long)fpc_physaddr,
256 get_order
257 (config_params->fault_pxl.fp_num *
258 FP_NUM_BYTES));
259 }
260
261 /* Allocate memory for FPC table */
262 fpc_virtaddr =
263 (unsigned int *)__get_free_pages(GFP_KERNEL | GFP_DMA,
264 get_order(raw_params->
265 fault_pxl.fp_num *
266 FP_NUM_BYTES));
267
268 if (fpc_virtaddr == NULL) {
269 dev_dbg(dev,
270 "\nUnable to allocate memory for FPC");
271 return -EFAULT;
272 }
273 fpc_physaddr =
274 (unsigned int *)virt_to_phys((void *)fpc_virtaddr);
275 }
276
277 /* Copy number of fault pixels and FPC table */
278 config_params->fault_pxl.fp_num = raw_params->fault_pxl.fp_num;
279 if (copy_from_user(fpc_virtaddr,
280 (void __user *)raw_params->fault_pxl.fpc_table_addr,
281 config_params->fault_pxl.fp_num * FP_NUM_BYTES)) {
282 dev_dbg(dev, "\n copy_from_user failed");
283 return -EFAULT;
284 }
285 config_params->fault_pxl.fpc_table_addr = (unsigned int)fpc_physaddr;
286 return 0;
287 }
288
289 static int ccdc_close(struct device *dev)
290 {
291 struct ccdc_config_params_raw *config_params =
292 &ccdc_hw_params_raw.config_params;
293 unsigned int *fpc_physaddr = NULL, *fpc_virtaddr = NULL;
294
295 fpc_physaddr = (unsigned int *)config_params->fault_pxl.fpc_table_addr;
296
297 if (fpc_physaddr != NULL) {
298 fpc_virtaddr = (unsigned int *)
299 phys_to_virt((unsigned long)fpc_physaddr);
300 free_pages((unsigned long)fpc_virtaddr,
301 get_order(config_params->fault_pxl.fp_num *
302 FP_NUM_BYTES));
303 }
304 return 0;
305 }
306
307 /*
308 * ccdc_restore_defaults()
309 * This function will write defaults to all CCDC registers
310 */
311 static void ccdc_restore_defaults(void)
312 {
313 int i;
314
315 /* disable CCDC */
316 ccdc_enable(0);
317 /* set all registers to default value */
318 for (i = 4; i <= 0x94; i += 4)
319 regw(0, i);
320 regw(CCDC_NO_CULLING, CCDC_CULLING);
321 regw(CCDC_GAMMA_BITS_11_2, CCDC_ALAW);
322 }
323
324 static int ccdc_open(struct device *device)
325 {
326 dev = device;
327 ccdc_restore_defaults();
328 if (ccdc_if_type == VPFE_RAW_BAYER)
329 ccdc_enable_vport(1);
330 return 0;
331 }
332
333 static void ccdc_sbl_reset(void)
334 {
335 vpss_clear_wbl_overflow(VPSS_PCR_CCDC_WBL_O);
336 }
337
338 /* Parameter operations */
339 static int ccdc_set_params(void __user *params)
340 {
341 struct ccdc_config_params_raw ccdc_raw_params;
342 int x;
343
344 if (ccdc_if_type != VPFE_RAW_BAYER)
345 return -EINVAL;
346
347 x = copy_from_user(&ccdc_raw_params, params, sizeof(ccdc_raw_params));
348 if (x) {
349 dev_dbg(dev, "ccdc_set_params: error in copying"
350 "ccdc params, %d\n", x);
351 return -EFAULT;
352 }
353
354 if (!validate_ccdc_param(&ccdc_raw_params)) {
355 if (!ccdc_update_raw_params(&ccdc_raw_params))
356 return 0;
357 }
358 return -EINVAL;
359 }
360
361 /*
362 * ccdc_config_ycbcr()
363 * This function will configure CCDC for YCbCr video capture
364 */
365 void ccdc_config_ycbcr(void)
366 {
367 struct ccdc_params_ycbcr *params = &ccdc_hw_params_ycbcr;
368 u32 syn_mode;
369
370 dev_dbg(dev, "\nStarting ccdc_config_ycbcr...");
371 /*
372 * first restore the CCDC registers to default values
373 * This is important since we assume default values to be set in
374 * a lot of registers that we didn't touch
375 */
376 ccdc_restore_defaults();
377
378 /*
379 * configure pixel format, frame format, configure video frame
380 * format, enable output to SDRAM, enable internal timing generator
381 * and 8bit pack mode
382 */
383 syn_mode = (((params->pix_fmt & CCDC_SYN_MODE_INPMOD_MASK) <<
384 CCDC_SYN_MODE_INPMOD_SHIFT) |
385 ((params->frm_fmt & CCDC_SYN_FLDMODE_MASK) <<
386 CCDC_SYN_FLDMODE_SHIFT) | CCDC_VDHDEN_ENABLE |
387 CCDC_WEN_ENABLE | CCDC_DATA_PACK_ENABLE);
388
389 /* setup BT.656 sync mode */
390 if (params->bt656_enable) {
391 regw(CCDC_REC656IF_BT656_EN, CCDC_REC656IF);
392
393 /*
394 * configure the FID, VD, HD pin polarity,
395 * fld,hd pol positive, vd negative, 8-bit data
396 */
397 syn_mode |= CCDC_SYN_MODE_VD_POL_NEGATIVE | CCDC_SYN_MODE_8BITS;
398 } else {
399 /* y/c external sync mode */
400 syn_mode |= (((params->fid_pol & CCDC_FID_POL_MASK) <<
401 CCDC_FID_POL_SHIFT) |
402 ((params->hd_pol & CCDC_HD_POL_MASK) <<
403 CCDC_HD_POL_SHIFT) |
404 ((params->vd_pol & CCDC_VD_POL_MASK) <<
405 CCDC_VD_POL_SHIFT));
406 }
407 regw(syn_mode, CCDC_SYN_MODE);
408
409 /* configure video window */
410 ccdc_setwin(&params->win, params->frm_fmt, 2);
411
412 /*
413 * configure the order of y cb cr in SDRAM, and disable latch
414 * internal register on vsync
415 */
416 regw((params->pix_order << CCDC_CCDCFG_Y8POS_SHIFT) |
417 CCDC_LATCH_ON_VSYNC_DISABLE, CCDC_CCDCFG);
418
419 /*
420 * configure the horizontal line offset. This should be a
421 * on 32 byte bondary. So clear LSB 5 bits
422 */
423 regw(((params->win.width * 2 + 31) & ~0x1f), CCDC_HSIZE_OFF);
424
425 /* configure the memory line offset */
426 if (params->buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED)
427 /* two fields are interleaved in memory */
428 regw(CCDC_SDOFST_FIELD_INTERLEAVED, CCDC_SDOFST);
429
430 ccdc_sbl_reset();
431 dev_dbg(dev, "\nEnd of ccdc_config_ycbcr...\n");
432 ccdc_readregs();
433 }
434
435 static void ccdc_config_black_clamp(struct ccdc_black_clamp *bclamp)
436 {
437 u32 val;
438
439 if (!bclamp->enable) {
440 /* configure DCSub */
441 val = (bclamp->dc_sub) & CCDC_BLK_DC_SUB_MASK;
442 regw(val, CCDC_DCSUB);
443 dev_dbg(dev, "\nWriting 0x%x to DCSUB...\n", val);
444 regw(CCDC_CLAMP_DEFAULT_VAL, CCDC_CLAMP);
445 dev_dbg(dev, "\nWriting 0x0000 to CLAMP...\n");
446 return;
447 }
448 /*
449 * Configure gain, Start pixel, No of line to be avg,
450 * No of pixel/line to be avg, & Enable the Black clamping
451 */
452 val = ((bclamp->sgain & CCDC_BLK_SGAIN_MASK) |
453 ((bclamp->start_pixel & CCDC_BLK_ST_PXL_MASK) <<
454 CCDC_BLK_ST_PXL_SHIFT) |
455 ((bclamp->sample_ln & CCDC_BLK_SAMPLE_LINE_MASK) <<
456 CCDC_BLK_SAMPLE_LINE_SHIFT) |
457 ((bclamp->sample_pixel & CCDC_BLK_SAMPLE_LN_MASK) <<
458 CCDC_BLK_SAMPLE_LN_SHIFT) | CCDC_BLK_CLAMP_ENABLE);
459 regw(val, CCDC_CLAMP);
460 dev_dbg(dev, "\nWriting 0x%x to CLAMP...\n", val);
461 /* If Black clamping is enable then make dcsub 0 */
462 regw(CCDC_DCSUB_DEFAULT_VAL, CCDC_DCSUB);
463 dev_dbg(dev, "\nWriting 0x00000000 to DCSUB...\n");
464 }
465
466 static void ccdc_config_black_compense(struct ccdc_black_compensation *bcomp)
467 {
468 u32 val;
469
470 val = ((bcomp->b & CCDC_BLK_COMP_MASK) |
471 ((bcomp->gb & CCDC_BLK_COMP_MASK) <<
472 CCDC_BLK_COMP_GB_COMP_SHIFT) |
473 ((bcomp->gr & CCDC_BLK_COMP_MASK) <<
474 CCDC_BLK_COMP_GR_COMP_SHIFT) |
475 ((bcomp->r & CCDC_BLK_COMP_MASK) <<
476 CCDC_BLK_COMP_R_COMP_SHIFT));
477 regw(val, CCDC_BLKCMP);
478 }
479
480 static void ccdc_config_fpc(struct ccdc_fault_pixel *fpc)
481 {
482 u32 val;
483
484 /* Initially disable FPC */
485 val = CCDC_FPC_DISABLE;
486 regw(val, CCDC_FPC);
487
488 if (!fpc->enable)
489 return;
490
491 /* Configure Fault pixel if needed */
492 regw(fpc->fpc_table_addr, CCDC_FPC_ADDR);
493 dev_dbg(dev, "\nWriting 0x%x to FPC_ADDR...\n",
494 (fpc->fpc_table_addr));
495 /* Write the FPC params with FPC disable */
496 val = fpc->fp_num & CCDC_FPC_FPC_NUM_MASK;
497 regw(val, CCDC_FPC);
498
499 dev_dbg(dev, "\nWriting 0x%x to FPC...\n", val);
500 /* read the FPC register */
501 val = regr(CCDC_FPC) | CCDC_FPC_ENABLE;
502 regw(val, CCDC_FPC);
503 dev_dbg(dev, "\nWriting 0x%x to FPC...\n", val);
504 }
505
506 /*
507 * ccdc_config_raw()
508 * This function will configure CCDC for Raw capture mode
509 */
510 void ccdc_config_raw(void)
511 {
512 struct ccdc_params_raw *params = &ccdc_hw_params_raw;
513 struct ccdc_config_params_raw *config_params =
514 &ccdc_hw_params_raw.config_params;
515 unsigned int syn_mode = 0;
516 unsigned int val;
517
518 dev_dbg(dev, "\nStarting ccdc_config_raw...");
519
520 /* Reset CCDC */
521 ccdc_restore_defaults();
522
523 /* Disable latching function registers on VSYNC */
524 regw(CCDC_LATCH_ON_VSYNC_DISABLE, CCDC_CCDCFG);
525
526 /*
527 * Configure the vertical sync polarity(SYN_MODE.VDPOL),
528 * horizontal sync polarity (SYN_MODE.HDPOL), frame id polarity
529 * (SYN_MODE.FLDPOL), frame format(progressive or interlace),
530 * data size(SYNMODE.DATSIZ), &pixel format (Input mode), output
531 * SDRAM, enable internal timing generator
532 */
533 syn_mode =
534 (((params->vd_pol & CCDC_VD_POL_MASK) << CCDC_VD_POL_SHIFT) |
535 ((params->hd_pol & CCDC_HD_POL_MASK) << CCDC_HD_POL_SHIFT) |
536 ((params->fid_pol & CCDC_FID_POL_MASK) << CCDC_FID_POL_SHIFT) |
537 ((params->frm_fmt & CCDC_FRM_FMT_MASK) << CCDC_FRM_FMT_SHIFT) |
538 ((config_params->data_sz & CCDC_DATA_SZ_MASK) <<
539 CCDC_DATA_SZ_SHIFT) |
540 ((params->pix_fmt & CCDC_PIX_FMT_MASK) << CCDC_PIX_FMT_SHIFT) |
541 CCDC_WEN_ENABLE | CCDC_VDHDEN_ENABLE);
542
543 /* Enable and configure aLaw register if needed */
544 if (config_params->alaw.enable) {
545 val = ((config_params->alaw.gama_wd &
546 CCDC_ALAW_GAMA_WD_MASK) | CCDC_ALAW_ENABLE);
547 regw(val, CCDC_ALAW);
548 dev_dbg(dev, "\nWriting 0x%x to ALAW...\n", val);
549 }
550
551 /* Configure video window */
552 ccdc_setwin(&params->win, params->frm_fmt, CCDC_PPC_RAW);
553
554 /* Configure Black Clamp */
555 ccdc_config_black_clamp(&config_params->blk_clamp);
556
557 /* Configure Black level compensation */
558 ccdc_config_black_compense(&config_params->blk_comp);
559
560 /* Configure Fault Pixel Correction */
561 ccdc_config_fpc(&config_params->fault_pxl);
562
563 /* If data size is 8 bit then pack the data */
564 if ((config_params->data_sz == CCDC_DATA_8BITS) ||
565 config_params->alaw.enable)
566 syn_mode |= CCDC_DATA_PACK_ENABLE;
567
568 #ifdef CONFIG_DM644X_VIDEO_PORT_ENABLE
569 /* enable video port */
570 val = CCDC_ENABLE_VIDEO_PORT;
571 #else
572 /* disable video port */
573 val = CCDC_DISABLE_VIDEO_PORT;
574 #endif
575
576 if (config_params->data_sz == CCDC_DATA_8BITS)
577 val |= (CCDC_DATA_10BITS & CCDC_FMTCFG_VPIN_MASK)
578 << CCDC_FMTCFG_VPIN_SHIFT;
579 else
580 val |= (config_params->data_sz & CCDC_FMTCFG_VPIN_MASK)
581 << CCDC_FMTCFG_VPIN_SHIFT;
582 /* Write value in FMTCFG */
583 regw(val, CCDC_FMTCFG);
584
585 dev_dbg(dev, "\nWriting 0x%x to FMTCFG...\n", val);
586 /* Configure the color pattern according to mt9t001 sensor */
587 regw(CCDC_COLPTN_VAL, CCDC_COLPTN);
588
589 dev_dbg(dev, "\nWriting 0xBB11BB11 to COLPTN...\n");
590 /*
591 * Configure Data formatter(Video port) pixel selection
592 * (FMT_HORZ, FMT_VERT)
593 */
594 val = ((params->win.left & CCDC_FMT_HORZ_FMTSPH_MASK) <<
595 CCDC_FMT_HORZ_FMTSPH_SHIFT) |
596 (params->win.width & CCDC_FMT_HORZ_FMTLNH_MASK);
597 regw(val, CCDC_FMT_HORZ);
598
599 dev_dbg(dev, "\nWriting 0x%x to FMT_HORZ...\n", val);
600 val = (params->win.top & CCDC_FMT_VERT_FMTSLV_MASK)
601 << CCDC_FMT_VERT_FMTSLV_SHIFT;
602 if (params->frm_fmt == CCDC_FRMFMT_PROGRESSIVE)
603 val |= (params->win.height) & CCDC_FMT_VERT_FMTLNV_MASK;
604 else
605 val |= (params->win.height >> 1) & CCDC_FMT_VERT_FMTLNV_MASK;
606
607 dev_dbg(dev, "\nparams->win.height 0x%x ...\n",
608 params->win.height);
609 regw(val, CCDC_FMT_VERT);
610
611 dev_dbg(dev, "\nWriting 0x%x to FMT_VERT...\n", val);
612
613 dev_dbg(dev, "\nbelow regw(val, FMT_VERT)...");
614
615 /*
616 * Configure Horizontal offset register. If pack 8 is enabled then
617 * 1 pixel will take 1 byte
618 */
619 if ((config_params->data_sz == CCDC_DATA_8BITS) ||
620 config_params->alaw.enable)
621 regw((params->win.width + CCDC_32BYTE_ALIGN_VAL) &
622 CCDC_HSIZE_OFF_MASK, CCDC_HSIZE_OFF);
623 else
624 /* else one pixel will take 2 byte */
625 regw(((params->win.width * CCDC_TWO_BYTES_PER_PIXEL) +
626 CCDC_32BYTE_ALIGN_VAL) & CCDC_HSIZE_OFF_MASK,
627 CCDC_HSIZE_OFF);
628
629 /* Set value for SDOFST */
630 if (params->frm_fmt == CCDC_FRMFMT_INTERLACED) {
631 if (params->image_invert_enable) {
632 /* For intelace inverse mode */
633 regw(CCDC_INTERLACED_IMAGE_INVERT, CCDC_SDOFST);
634 dev_dbg(dev, "\nWriting 0x4B6D to SDOFST...\n");
635 }
636
637 else {
638 /* For intelace non inverse mode */
639 regw(CCDC_INTERLACED_NO_IMAGE_INVERT, CCDC_SDOFST);
640 dev_dbg(dev, "\nWriting 0x0249 to SDOFST...\n");
641 }
642 } else if (params->frm_fmt == CCDC_FRMFMT_PROGRESSIVE) {
643 regw(CCDC_PROGRESSIVE_NO_IMAGE_INVERT, CCDC_SDOFST);
644 dev_dbg(dev, "\nWriting 0x0000 to SDOFST...\n");
645 }
646
647 /*
648 * Configure video port pixel selection (VPOUT)
649 * Here -1 is to make the height value less than FMT_VERT.FMTLNV
650 */
651 if (params->frm_fmt == CCDC_FRMFMT_PROGRESSIVE)
652 val = (((params->win.height - 1) & CCDC_VP_OUT_VERT_NUM_MASK))
653 << CCDC_VP_OUT_VERT_NUM_SHIFT;
654 else
655 val =
656 ((((params->win.height >> CCDC_INTERLACED_HEIGHT_SHIFT) -
657 1) & CCDC_VP_OUT_VERT_NUM_MASK)) <<
658 CCDC_VP_OUT_VERT_NUM_SHIFT;
659
660 val |= ((((params->win.width))) & CCDC_VP_OUT_HORZ_NUM_MASK)
661 << CCDC_VP_OUT_HORZ_NUM_SHIFT;
662 val |= (params->win.left) & CCDC_VP_OUT_HORZ_ST_MASK;
663 regw(val, CCDC_VP_OUT);
664
665 dev_dbg(dev, "\nWriting 0x%x to VP_OUT...\n", val);
666 regw(syn_mode, CCDC_SYN_MODE);
667 dev_dbg(dev, "\nWriting 0x%x to SYN_MODE...\n", syn_mode);
668
669 ccdc_sbl_reset();
670 dev_dbg(dev, "\nend of ccdc_config_raw...");
671 ccdc_readregs();
672 }
673
674 static int ccdc_configure(void)
675 {
676 if (ccdc_if_type == VPFE_RAW_BAYER)
677 ccdc_config_raw();
678 else
679 ccdc_config_ycbcr();
680 return 0;
681 }
682
683 static int ccdc_set_buftype(enum ccdc_buftype buf_type)
684 {
685 if (ccdc_if_type == VPFE_RAW_BAYER)
686 ccdc_hw_params_raw.buf_type = buf_type;
687 else
688 ccdc_hw_params_ycbcr.buf_type = buf_type;
689 return 0;
690 }
691
692 static enum ccdc_buftype ccdc_get_buftype(void)
693 {
694 if (ccdc_if_type == VPFE_RAW_BAYER)
695 return ccdc_hw_params_raw.buf_type;
696 return ccdc_hw_params_ycbcr.buf_type;
697 }
698
699 static int ccdc_enum_pix(u32 *pix, int i)
700 {
701 int ret = -EINVAL;
702 if (ccdc_if_type == VPFE_RAW_BAYER) {
703 if (i < ARRAY_SIZE(ccdc_raw_bayer_pix_formats)) {
704 *pix = ccdc_raw_bayer_pix_formats[i];
705 ret = 0;
706 }
707 } else {
708 if (i < ARRAY_SIZE(ccdc_raw_yuv_pix_formats)) {
709 *pix = ccdc_raw_yuv_pix_formats[i];
710 ret = 0;
711 }
712 }
713 return ret;
714 }
715
716 static int ccdc_set_pixel_format(u32 pixfmt)
717 {
718 if (ccdc_if_type == VPFE_RAW_BAYER) {
719 ccdc_hw_params_raw.pix_fmt = CCDC_PIXFMT_RAW;
720 if (pixfmt == V4L2_PIX_FMT_SBGGR8)
721 ccdc_hw_params_raw.config_params.alaw.enable = 1;
722 else if (pixfmt != V4L2_PIX_FMT_SBGGR16)
723 return -EINVAL;
724 } else {
725 if (pixfmt == V4L2_PIX_FMT_YUYV)
726 ccdc_hw_params_ycbcr.pix_order = CCDC_PIXORDER_YCBYCR;
727 else if (pixfmt == V4L2_PIX_FMT_UYVY)
728 ccdc_hw_params_ycbcr.pix_order = CCDC_PIXORDER_CBYCRY;
729 else
730 return -EINVAL;
731 }
732 return 0;
733 }
734
735 static u32 ccdc_get_pixel_format(void)
736 {
737 struct ccdc_a_law *alaw =
738 &ccdc_hw_params_raw.config_params.alaw;
739 u32 pixfmt;
740
741 if (ccdc_if_type == VPFE_RAW_BAYER)
742 if (alaw->enable)
743 pixfmt = V4L2_PIX_FMT_SBGGR8;
744 else
745 pixfmt = V4L2_PIX_FMT_SBGGR16;
746 else {
747 if (ccdc_hw_params_ycbcr.pix_order == CCDC_PIXORDER_YCBYCR)
748 pixfmt = V4L2_PIX_FMT_YUYV;
749 else
750 pixfmt = V4L2_PIX_FMT_UYVY;
751 }
752 return pixfmt;
753 }
754
755 static int ccdc_set_image_window(struct v4l2_rect *win)
756 {
757 if (ccdc_if_type == VPFE_RAW_BAYER)
758 ccdc_hw_params_raw.win = *win;
759 else
760 ccdc_hw_params_ycbcr.win = *win;
761 return 0;
762 }
763
764 static void ccdc_get_image_window(struct v4l2_rect *win)
765 {
766 if (ccdc_if_type == VPFE_RAW_BAYER)
767 *win = ccdc_hw_params_raw.win;
768 else
769 *win = ccdc_hw_params_ycbcr.win;
770 }
771
772 static unsigned int ccdc_get_line_length(void)
773 {
774 struct ccdc_config_params_raw *config_params =
775 &ccdc_hw_params_raw.config_params;
776 unsigned int len;
777
778 if (ccdc_if_type == VPFE_RAW_BAYER) {
779 if ((config_params->alaw.enable) ||
780 (config_params->data_sz == CCDC_DATA_8BITS))
781 len = ccdc_hw_params_raw.win.width;
782 else
783 len = ccdc_hw_params_raw.win.width * 2;
784 } else
785 len = ccdc_hw_params_ycbcr.win.width * 2;
786 return ALIGN(len, 32);
787 }
788
789 static int ccdc_set_frame_format(enum ccdc_frmfmt frm_fmt)
790 {
791 if (ccdc_if_type == VPFE_RAW_BAYER)
792 ccdc_hw_params_raw.frm_fmt = frm_fmt;
793 else
794 ccdc_hw_params_ycbcr.frm_fmt = frm_fmt;
795 return 0;
796 }
797
798 static enum ccdc_frmfmt ccdc_get_frame_format(void)
799 {
800 if (ccdc_if_type == VPFE_RAW_BAYER)
801 return ccdc_hw_params_raw.frm_fmt;
802 else
803 return ccdc_hw_params_ycbcr.frm_fmt;
804 }
805
806 static int ccdc_getfid(void)
807 {
808 return (regr(CCDC_SYN_MODE) >> 15) & 1;
809 }
810
811 /* misc operations */
812 static inline void ccdc_setfbaddr(unsigned long addr)
813 {
814 regw(addr & 0xffffffe0, CCDC_SDR_ADDR);
815 }
816
817 static int ccdc_set_hw_if_params(struct vpfe_hw_if_param *params)
818 {
819 ccdc_if_type = params->if_type;
820
821 switch (params->if_type) {
822 case VPFE_BT656:
823 case VPFE_YCBCR_SYNC_16:
824 case VPFE_YCBCR_SYNC_8:
825 ccdc_hw_params_ycbcr.vd_pol = params->vdpol;
826 ccdc_hw_params_ycbcr.hd_pol = params->hdpol;
827 break;
828 default:
829 /* TODO add support for raw bayer here */
830 return -EINVAL;
831 }
832 return 0;
833 }
834
835 static struct ccdc_hw_device ccdc_hw_dev = {
836 .name = "DM6446 CCDC",
837 .owner = THIS_MODULE,
838 .hw_ops = {
839 .open = ccdc_open,
840 .close = ccdc_close,
841 .set_ccdc_base = ccdc_set_ccdc_base,
842 .reset = ccdc_sbl_reset,
843 .enable = ccdc_enable,
844 .set_hw_if_params = ccdc_set_hw_if_params,
845 .set_params = ccdc_set_params,
846 .configure = ccdc_configure,
847 .set_buftype = ccdc_set_buftype,
848 .get_buftype = ccdc_get_buftype,
849 .enum_pix = ccdc_enum_pix,
850 .set_pixel_format = ccdc_set_pixel_format,
851 .get_pixel_format = ccdc_get_pixel_format,
852 .set_frame_format = ccdc_set_frame_format,
853 .get_frame_format = ccdc_get_frame_format,
854 .set_image_window = ccdc_set_image_window,
855 .get_image_window = ccdc_get_image_window,
856 .get_line_length = ccdc_get_line_length,
857 .setfbaddr = ccdc_setfbaddr,
858 .getfid = ccdc_getfid,
859 },
860 };
861
862 static int dm644x_ccdc_init(void)
863 {
864 printk(KERN_NOTICE "dm644x_ccdc_init\n");
865 if (vpfe_register_ccdc_device(&ccdc_hw_dev) < 0)
866 return -1;
867 printk(KERN_NOTICE "%s is registered with vpfe.\n",
868 ccdc_hw_dev.name);
869 return 0;
870 }
871
872 static void dm644x_ccdc_exit(void)
873 {
874 vpfe_unregister_ccdc_device(&ccdc_hw_dev);
875 }
876
877 module_init(dm644x_ccdc_init);
878 module_exit(dm644x_ccdc_exit);
Linux for Ginger Game Console