projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
[media] cx25821: fix sparse warnings
[deliverable/linux.git] / drivers / media / pci / cx25821 / cx25821-medusa-video.c
1 /*
2 * Driver for the Conexant CX25821 PCIe bridge
3 *
4 * Copyright (C) 2009 Conexant Systems Inc.
5 * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 *
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22
23 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
24
25 #include "cx25821.h"
26 #include "cx25821-medusa-video.h"
27 #include "cx25821-biffuncs.h"
28
29 /*
30 * medusa_enable_bluefield_output()
31 *
32 * Enable the generation of blue filed output if no video
33 *
34 */
35 static void medusa_enable_bluefield_output(struct cx25821_dev *dev, int channel,
36 int enable)
37 {
38 u32 value = 0;
39 u32 tmp = 0;
40 int out_ctrl = OUT_CTRL1;
41 int out_ctrl_ns = OUT_CTRL_NS;
42
43 switch (channel) {
44 default:
45 case VDEC_A:
46 break;
47 case VDEC_B:
48 out_ctrl = VDEC_B_OUT_CTRL1;
49 out_ctrl_ns = VDEC_B_OUT_CTRL_NS;
50 break;
51 case VDEC_C:
52 out_ctrl = VDEC_C_OUT_CTRL1;
53 out_ctrl_ns = VDEC_C_OUT_CTRL_NS;
54 break;
55 case VDEC_D:
56 out_ctrl = VDEC_D_OUT_CTRL1;
57 out_ctrl_ns = VDEC_D_OUT_CTRL_NS;
58 break;
59 case VDEC_E:
60 out_ctrl = VDEC_E_OUT_CTRL1;
61 out_ctrl_ns = VDEC_E_OUT_CTRL_NS;
62 return;
63 case VDEC_F:
64 out_ctrl = VDEC_F_OUT_CTRL1;
65 out_ctrl_ns = VDEC_F_OUT_CTRL_NS;
66 return;
67 case VDEC_G:
68 out_ctrl = VDEC_G_OUT_CTRL1;
69 out_ctrl_ns = VDEC_G_OUT_CTRL_NS;
70 return;
71 case VDEC_H:
72 out_ctrl = VDEC_H_OUT_CTRL1;
73 out_ctrl_ns = VDEC_H_OUT_CTRL_NS;
74 return;
75 }
76
77 value = cx25821_i2c_read(&dev->i2c_bus[0], out_ctrl, &tmp);
78 value &= 0xFFFFFF7F; /* clear BLUE_FIELD_EN */
79 if (enable)
80 value |= 0x00000080; /* set BLUE_FIELD_EN */
81 cx25821_i2c_write(&dev->i2c_bus[0], out_ctrl, value);
82
83 value = cx25821_i2c_read(&dev->i2c_bus[0], out_ctrl_ns, &tmp);
84 value &= 0xFFFFFF7F;
85 if (enable)
86 value |= 0x00000080; /* set BLUE_FIELD_EN */
87 cx25821_i2c_write(&dev->i2c_bus[0], out_ctrl_ns, value);
88 }
89
90 static int medusa_initialize_ntsc(struct cx25821_dev *dev)
91 {
92 int ret_val = 0;
93 int i = 0;
94 u32 value = 0;
95 u32 tmp = 0;
96
97 for (i = 0; i < MAX_DECODERS; i++) {
98 /* set video format NTSC-M */
99 value = cx25821_i2c_read(&dev->i2c_bus[0],
100 MODE_CTRL + (0x200 * i), &tmp);
101 value &= 0xFFFFFFF0;
102 /* enable the fast locking mode bit[16] */
103 value |= 0x10001;
104 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
105 MODE_CTRL + (0x200 * i), value);
106
107 /* resolution NTSC 720x480 */
108 value = cx25821_i2c_read(&dev->i2c_bus[0],
109 HORIZ_TIM_CTRL + (0x200 * i), &tmp);
110 value &= 0x00C00C00;
111 value |= 0x612D0074;
112 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
113 HORIZ_TIM_CTRL + (0x200 * i), value);
114
115 value = cx25821_i2c_read(&dev->i2c_bus[0],
116 VERT_TIM_CTRL + (0x200 * i), &tmp);
117 value &= 0x00C00C00;
118 value |= 0x1C1E001A; /* vblank_cnt + 2 to get camera ID */
119 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
120 VERT_TIM_CTRL + (0x200 * i), value);
121
122 /* chroma subcarrier step size */
123 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
124 SC_STEP_SIZE + (0x200 * i), 0x43E00000);
125
126 /* enable VIP optional active */
127 value = cx25821_i2c_read(&dev->i2c_bus[0],
128 OUT_CTRL_NS + (0x200 * i), &tmp);
129 value &= 0xFFFBFFFF;
130 value |= 0x00040000;
131 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
132 OUT_CTRL_NS + (0x200 * i), value);
133
134 /* enable VIP optional active (VIP_OPT_AL) for direct output. */
135 value = cx25821_i2c_read(&dev->i2c_bus[0],
136 OUT_CTRL1 + (0x200 * i), &tmp);
137 value &= 0xFFFBFFFF;
138 value |= 0x00040000;
139 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
140 OUT_CTRL1 + (0x200 * i), value);
141
142 /*
143 * clear VPRES_VERT_EN bit, fixes the chroma run away problem
144 * when the input switching rate < 16 fields
145 */
146 value = cx25821_i2c_read(&dev->i2c_bus[0],
147 MISC_TIM_CTRL + (0x200 * i), &tmp);
148 /* disable special play detection */
149 value = setBitAtPos(value, 14);
150 value = clearBitAtPos(value, 15);
151 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
152 MISC_TIM_CTRL + (0x200 * i), value);
153
154 /* set vbi_gate_en to 0 */
155 value = cx25821_i2c_read(&dev->i2c_bus[0],
156 DFE_CTRL1 + (0x200 * i), &tmp);
157 value = clearBitAtPos(value, 29);
158 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
159 DFE_CTRL1 + (0x200 * i), value);
160
161 /* Enable the generation of blue field output if no video */
162 medusa_enable_bluefield_output(dev, i, 1);
163 }
164
165 for (i = 0; i < MAX_ENCODERS; i++) {
166 /* NTSC hclock */
167 value = cx25821_i2c_read(&dev->i2c_bus[0],
168 DENC_A_REG_1 + (0x100 * i), &tmp);
169 value &= 0xF000FC00;
170 value |= 0x06B402D0;
171 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
172 DENC_A_REG_1 + (0x100 * i), value);
173
174 /* burst begin and burst end */
175 value = cx25821_i2c_read(&dev->i2c_bus[0],
176 DENC_A_REG_2 + (0x100 * i), &tmp);
177 value &= 0xFF000000;
178 value |= 0x007E9054;
179 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
180 DENC_A_REG_2 + (0x100 * i), value);
181
182 value = cx25821_i2c_read(&dev->i2c_bus[0],
183 DENC_A_REG_3 + (0x100 * i), &tmp);
184 value &= 0xFC00FE00;
185 value |= 0x00EC00F0;
186 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
187 DENC_A_REG_3 + (0x100 * i), value);
188
189 /* set NTSC vblank, no phase alternation, 7.5 IRE pedestal */
190 value = cx25821_i2c_read(&dev->i2c_bus[0],
191 DENC_A_REG_4 + (0x100 * i), &tmp);
192 value &= 0x00FCFFFF;
193 value |= 0x13020000;
194 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
195 DENC_A_REG_4 + (0x100 * i), value);
196
197 value = cx25821_i2c_read(&dev->i2c_bus[0],
198 DENC_A_REG_5 + (0x100 * i), &tmp);
199 value &= 0xFFFF0000;
200 value |= 0x0000E575;
201 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
202 DENC_A_REG_5 + (0x100 * i), value);
203
204 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
205 DENC_A_REG_6 + (0x100 * i), 0x009A89C1);
206
207 /* Subcarrier Increment */
208 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
209 DENC_A_REG_7 + (0x100 * i), 0x21F07C1F);
210 }
211
212 /* set picture resolutions */
213 /* 0 - 720 */
214 ret_val = cx25821_i2c_write(&dev->i2c_bus[0], HSCALE_CTRL, 0x0);
215 /* 0 - 480 */
216 ret_val = cx25821_i2c_write(&dev->i2c_bus[0], VSCALE_CTRL, 0x0);
217
218 /* set Bypass input format to NTSC 525 lines */
219 value = cx25821_i2c_read(&dev->i2c_bus[0], BYP_AB_CTRL, &tmp);
220 value |= 0x00080200;
221 ret_val = cx25821_i2c_write(&dev->i2c_bus[0], BYP_AB_CTRL, value);
222
223 return ret_val;
224 }
225
226 static int medusa_PALCombInit(struct cx25821_dev *dev, int dec)
227 {
228 int ret_val = -1;
229 u32 value = 0, tmp = 0;
230
231 /* Setup for 2D threshold */
232 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
233 COMB_2D_HFS_CFG + (0x200 * dec), 0x20002861);
234 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
235 COMB_2D_HFD_CFG + (0x200 * dec), 0x20002861);
236 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
237 COMB_2D_LF_CFG + (0x200 * dec), 0x200A1023);
238
239 /* Setup flat chroma and luma thresholds */
240 value = cx25821_i2c_read(&dev->i2c_bus[0],
241 COMB_FLAT_THRESH_CTRL + (0x200 * dec), &tmp);
242 value &= 0x06230000;
243 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
244 COMB_FLAT_THRESH_CTRL + (0x200 * dec), value);
245
246 /* set comb 2D blend */
247 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
248 COMB_2D_BLEND + (0x200 * dec), 0x210F0F0F);
249
250 /* COMB MISC CONTROL */
251 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
252 COMB_MISC_CTRL + (0x200 * dec), 0x41120A7F);
253
254 return ret_val;
255 }
256
257 static int medusa_initialize_pal(struct cx25821_dev *dev)
258 {
259 int ret_val = 0;
260 int i = 0;
261 u32 value = 0;
262 u32 tmp = 0;
263
264 for (i = 0; i < MAX_DECODERS; i++) {
265 /* set video format PAL-BDGHI */
266 value = cx25821_i2c_read(&dev->i2c_bus[0],
267 MODE_CTRL + (0x200 * i), &tmp);
268 value &= 0xFFFFFFF0;
269 /* enable the fast locking mode bit[16] */
270 value |= 0x10004;
271 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
272 MODE_CTRL + (0x200 * i), value);
273
274 /* resolution PAL 720x576 */
275 value = cx25821_i2c_read(&dev->i2c_bus[0],
276 HORIZ_TIM_CTRL + (0x200 * i), &tmp);
277 value &= 0x00C00C00;
278 value |= 0x632D007D;
279 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
280 HORIZ_TIM_CTRL + (0x200 * i), value);
281
282 /* vblank656_cnt=x26, vactive_cnt=240h, vblank_cnt=x24 */
283 value = cx25821_i2c_read(&dev->i2c_bus[0],
284 VERT_TIM_CTRL + (0x200 * i), &tmp);
285 value &= 0x00C00C00;
286 value |= 0x28240026; /* vblank_cnt + 2 to get camera ID */
287 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
288 VERT_TIM_CTRL + (0x200 * i), value);
289
290 /* chroma subcarrier step size */
291 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
292 SC_STEP_SIZE + (0x200 * i), 0x5411E2D0);
293
294 /* enable VIP optional active */
295 value = cx25821_i2c_read(&dev->i2c_bus[0],
296 OUT_CTRL_NS + (0x200 * i), &tmp);
297 value &= 0xFFFBFFFF;
298 value |= 0x00040000;
299 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
300 OUT_CTRL_NS + (0x200 * i), value);
301
302 /* enable VIP optional active (VIP_OPT_AL) for direct output. */
303 value = cx25821_i2c_read(&dev->i2c_bus[0],
304 OUT_CTRL1 + (0x200 * i), &tmp);
305 value &= 0xFFFBFFFF;
306 value |= 0x00040000;
307 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
308 OUT_CTRL1 + (0x200 * i), value);
309
310 /*
311 * clear VPRES_VERT_EN bit, fixes the chroma run away problem
312 * when the input switching rate < 16 fields
313 */
314 value = cx25821_i2c_read(&dev->i2c_bus[0],
315 MISC_TIM_CTRL + (0x200 * i), &tmp);
316 /* disable special play detection */
317 value = setBitAtPos(value, 14);
318 value = clearBitAtPos(value, 15);
319 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
320 MISC_TIM_CTRL + (0x200 * i), value);
321
322 /* set vbi_gate_en to 0 */
323 value = cx25821_i2c_read(&dev->i2c_bus[0],
324 DFE_CTRL1 + (0x200 * i), &tmp);
325 value = clearBitAtPos(value, 29);
326 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
327 DFE_CTRL1 + (0x200 * i), value);
328
329 medusa_PALCombInit(dev, i);
330
331 /* Enable the generation of blue field output if no video */
332 medusa_enable_bluefield_output(dev, i, 1);
333 }
334
335 for (i = 0; i < MAX_ENCODERS; i++) {
336 /* PAL hclock */
337 value = cx25821_i2c_read(&dev->i2c_bus[0],
338 DENC_A_REG_1 + (0x100 * i), &tmp);
339 value &= 0xF000FC00;
340 value |= 0x06C002D0;
341 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
342 DENC_A_REG_1 + (0x100 * i), value);
343
344 /* burst begin and burst end */
345 value = cx25821_i2c_read(&dev->i2c_bus[0],
346 DENC_A_REG_2 + (0x100 * i), &tmp);
347 value &= 0xFF000000;
348 value |= 0x007E9754;
349 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
350 DENC_A_REG_2 + (0x100 * i), value);
351
352 /* hblank and vactive */
353 value = cx25821_i2c_read(&dev->i2c_bus[0],
354 DENC_A_REG_3 + (0x100 * i), &tmp);
355 value &= 0xFC00FE00;
356 value |= 0x00FC0120;
357 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
358 DENC_A_REG_3 + (0x100 * i), value);
359
360 /* set PAL vblank, phase alternation, 0 IRE pedestal */
361 value = cx25821_i2c_read(&dev->i2c_bus[0],
362 DENC_A_REG_4 + (0x100 * i), &tmp);
363 value &= 0x00FCFFFF;
364 value |= 0x14010000;
365 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
366 DENC_A_REG_4 + (0x100 * i), value);
367
368 value = cx25821_i2c_read(&dev->i2c_bus[0],
369 DENC_A_REG_5 + (0x100 * i), &tmp);
370 value &= 0xFFFF0000;
371 value |= 0x0000F078;
372 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
373 DENC_A_REG_5 + (0x100 * i), value);
374
375 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
376 DENC_A_REG_6 + (0x100 * i), 0x00A493CF);
377
378 /* Subcarrier Increment */
379 ret_val = cx25821_i2c_write(&dev->i2c_bus[0],
380 DENC_A_REG_7 + (0x100 * i), 0x2A098ACB);
381 }
382
383 /* set picture resolutions */
384 /* 0 - 720 */
385 ret_val = cx25821_i2c_write(&dev->i2c_bus[0], HSCALE_CTRL, 0x0);
386 /* 0 - 576 */
387 ret_val = cx25821_i2c_write(&dev->i2c_bus[0], VSCALE_CTRL, 0x0);
388
389 /* set Bypass input format to PAL 625 lines */
390 value = cx25821_i2c_read(&dev->i2c_bus[0], BYP_AB_CTRL, &tmp);
391 value &= 0xFFF7FDFF;
392 ret_val = cx25821_i2c_write(&dev->i2c_bus[0], BYP_AB_CTRL, value);
393
394 return ret_val;
395 }
396
397 int medusa_set_videostandard(struct cx25821_dev *dev)
398 {
399 int status = 0;
400 u32 value = 0, tmp = 0;
401
402 if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK)
403 status = medusa_initialize_pal(dev);
404 else
405 status = medusa_initialize_ntsc(dev);
406
407 /* Enable DENC_A output */
408 value = cx25821_i2c_read(&dev->i2c_bus[0], DENC_A_REG_4, &tmp);
409 value = setBitAtPos(value, 4);
410 status = cx25821_i2c_write(&dev->i2c_bus[0], DENC_A_REG_4, value);
411
412 /* Enable DENC_B output */
413 value = cx25821_i2c_read(&dev->i2c_bus[0], DENC_B_REG_4, &tmp);
414 value = setBitAtPos(value, 4);
415 status = cx25821_i2c_write(&dev->i2c_bus[0], DENC_B_REG_4, value);
416
417 return status;
418 }
419
420 void medusa_set_resolution(struct cx25821_dev *dev, int width,
421 int decoder_select)
422 {
423 int decoder = 0;
424 int decoder_count = 0;
425 u32 hscale = 0x0;
426 u32 vscale = 0x0;
427 const int MAX_WIDTH = 720;
428
429 /* validate the width */
430 if (width > MAX_WIDTH) {
431 pr_info("%s(): width %d > MAX_WIDTH %d ! resetting to MAX_WIDTH\n",
432 __func__, width, MAX_WIDTH);
433 width = MAX_WIDTH;
434 }
435
436 if (decoder_select <= 7 && decoder_select >= 0) {
437 decoder = decoder_select;
438 decoder_count = decoder_select + 1;
439 } else {
440 decoder = 0;
441 decoder_count = dev->_max_num_decoders;
442 }
443
444 switch (width) {
445 case 320:
446 hscale = 0x13E34B;
447 vscale = 0x0;
448 break;
449
450 case 352:
451 hscale = 0x10A273;
452 vscale = 0x0;
453 break;
454
455 case 176:
456 hscale = 0x3115B2;
457 vscale = 0x1E00;
458 break;
459
460 case 160:
461 hscale = 0x378D84;
462 vscale = 0x1E00;
463 break;
464
465 default: /* 720 */
466 hscale = 0x0;
467 vscale = 0x0;
468 break;
469 }
470
471 for (; decoder < decoder_count; decoder++) {
472 /* write scaling values for each decoder */
473 cx25821_i2c_write(&dev->i2c_bus[0],
474 HSCALE_CTRL + (0x200 * decoder), hscale);
475 cx25821_i2c_write(&dev->i2c_bus[0],
476 VSCALE_CTRL + (0x200 * decoder), vscale);
477 }
478 }
479
480 static void medusa_set_decoderduration(struct cx25821_dev *dev, int decoder,
481 int duration)
482 {
483 u32 fld_cnt = 0;
484 u32 tmp = 0;
485 u32 disp_cnt_reg = DISP_AB_CNT;
486
487 /* no support */
488 if (decoder < VDEC_A || decoder > VDEC_H) {
489 return;
490 }
491
492 switch (decoder) {
493 default:
494 break;
495 case VDEC_C:
496 case VDEC_D:
497 disp_cnt_reg = DISP_CD_CNT;
498 break;
499 case VDEC_E:
500 case VDEC_F:
501 disp_cnt_reg = DISP_EF_CNT;
502 break;
503 case VDEC_G:
504 case VDEC_H:
505 disp_cnt_reg = DISP_GH_CNT;
506 break;
507 }
508
509 /* update hardware */
510 fld_cnt = cx25821_i2c_read(&dev->i2c_bus[0], disp_cnt_reg, &tmp);
511
512 if (!(decoder % 2)) { /* EVEN decoder */
513 fld_cnt &= 0xFFFF0000;
514 fld_cnt |= duration;
515 } else {
516 fld_cnt &= 0x0000FFFF;
517 fld_cnt |= ((u32) duration) << 16;
518 }
519
520 cx25821_i2c_write(&dev->i2c_bus[0], disp_cnt_reg, fld_cnt);
521 }
522
523 /* Map to Medusa register setting */
524 static int mapM(int srcMin, int srcMax, int srcVal, int dstMin, int dstMax,
525 int *dstVal)
526 {
527 int numerator;
528 int denominator;
529 int quotient;
530
531 if ((srcMin == srcMax) || (srcVal < srcMin) || (srcVal > srcMax))
532 return -1;
533 /*
534 * This is the overall expression used:
535 * *dstVal =
536 * (srcVal - srcMin)*(dstMax - dstMin) / (srcMax - srcMin) + dstMin;
537 * but we need to account for rounding so below we use the modulus
538 * operator to find the remainder and increment if necessary.
539 */
540 numerator = (srcVal - srcMin) * (dstMax - dstMin);
541 denominator = srcMax - srcMin;
542 quotient = numerator / denominator;
543
544 if (2 * (numerator % denominator) >= denominator)
545 quotient++;
546
547 *dstVal = quotient + dstMin;
548
549 return 0;
550 }
551
552 static unsigned long convert_to_twos(long numeric, unsigned long bits_len)
553 {
554 unsigned char temp;
555
556 if (numeric >= 0)
557 return numeric;
558 else {
559 temp = ~(abs(numeric) & 0xFF);
560 temp += 1;
561 return temp;
562 }
563 }
564
565 int medusa_set_brightness(struct cx25821_dev *dev, int brightness, int decoder)
566 {
567 int ret_val = 0;
568 int value = 0;
569 u32 val = 0, tmp = 0;
570
571 if ((brightness > VIDEO_PROCAMP_MAX) ||
572 (brightness < VIDEO_PROCAMP_MIN)) {
573 return -1;
574 }
575 ret_val = mapM(VIDEO_PROCAMP_MIN, VIDEO_PROCAMP_MAX, brightness,
576 SIGNED_BYTE_MIN, SIGNED_BYTE_MAX, &value);
577 value = convert_to_twos(value, 8);
578 val = cx25821_i2c_read(&dev->i2c_bus[0],
579 VDEC_A_BRITE_CTRL + (0x200 * decoder), &tmp);
580 val &= 0xFFFFFF00;
581 ret_val |= cx25821_i2c_write(&dev->i2c_bus[0],
582 VDEC_A_BRITE_CTRL + (0x200 * decoder), val | value);
583 return ret_val;
584 }
585
586 int medusa_set_contrast(struct cx25821_dev *dev, int contrast, int decoder)
587 {
588 int ret_val = 0;
589 int value = 0;
590 u32 val = 0, tmp = 0;
591
592 if ((contrast > VIDEO_PROCAMP_MAX) || (contrast < VIDEO_PROCAMP_MIN)) {
593 return -1;
594 }
595
596 ret_val = mapM(VIDEO_PROCAMP_MIN, VIDEO_PROCAMP_MAX, contrast,
597 UNSIGNED_BYTE_MIN, UNSIGNED_BYTE_MAX, &value);
598 val = cx25821_i2c_read(&dev->i2c_bus[0],
599 VDEC_A_CNTRST_CTRL + (0x200 * decoder), &tmp);
600 val &= 0xFFFFFF00;
601 ret_val |= cx25821_i2c_write(&dev->i2c_bus[0],
602 VDEC_A_CNTRST_CTRL + (0x200 * decoder), val | value);
603
604 return ret_val;
605 }
606
607 int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder)
608 {
609 int ret_val = 0;
610 int value = 0;
611 u32 val = 0, tmp = 0;
612
613 if ((hue > VIDEO_PROCAMP_MAX) || (hue < VIDEO_PROCAMP_MIN)) {
614 return -1;
615 }
616
617 ret_val = mapM(VIDEO_PROCAMP_MIN, VIDEO_PROCAMP_MAX, hue,
618 SIGNED_BYTE_MIN, SIGNED_BYTE_MAX, &value);
619
620 value = convert_to_twos(value, 8);
621 val = cx25821_i2c_read(&dev->i2c_bus[0],
622 VDEC_A_HUE_CTRL + (0x200 * decoder), &tmp);
623 val &= 0xFFFFFF00;
624
625 ret_val |= cx25821_i2c_write(&dev->i2c_bus[0],
626 VDEC_A_HUE_CTRL + (0x200 * decoder), val | value);
627
628 return ret_val;
629 }
630
631 int medusa_set_saturation(struct cx25821_dev *dev, int saturation, int decoder)
632 {
633 int ret_val = 0;
634 int value = 0;
635 u32 val = 0, tmp = 0;
636
637 if ((saturation > VIDEO_PROCAMP_MAX) ||
638 (saturation < VIDEO_PROCAMP_MIN)) {
639 return -1;
640 }
641
642 ret_val = mapM(VIDEO_PROCAMP_MIN, VIDEO_PROCAMP_MAX, saturation,
643 UNSIGNED_BYTE_MIN, UNSIGNED_BYTE_MAX, &value);
644
645 val = cx25821_i2c_read(&dev->i2c_bus[0],
646 VDEC_A_USAT_CTRL + (0x200 * decoder), &tmp);
647 val &= 0xFFFFFF00;
648 ret_val |= cx25821_i2c_write(&dev->i2c_bus[0],
649 VDEC_A_USAT_CTRL + (0x200 * decoder), val | value);
650
651 val = cx25821_i2c_read(&dev->i2c_bus[0],
652 VDEC_A_VSAT_CTRL + (0x200 * decoder), &tmp);
653 val &= 0xFFFFFF00;
654 ret_val |= cx25821_i2c_write(&dev->i2c_bus[0],
655 VDEC_A_VSAT_CTRL + (0x200 * decoder), val | value);
656
657 return ret_val;
658 }
659
660 /* Program the display sequence and monitor output. */
661
662 int medusa_video_init(struct cx25821_dev *dev)
663 {
664 u32 value = 0, tmp = 0;
665 int ret_val = 0;
666 int i = 0;
667
668 /* disable Auto source selection on all video decoders */
669 value = cx25821_i2c_read(&dev->i2c_bus[0], MON_A_CTRL, &tmp);
670 value &= 0xFFFFF0FF;
671 ret_val = cx25821_i2c_write(&dev->i2c_bus[0], MON_A_CTRL, value);
672
673 if (ret_val < 0)
674 goto error;
675
676 /* Turn off Master source switch enable */
677 value = cx25821_i2c_read(&dev->i2c_bus[0], MON_A_CTRL, &tmp);
678 value &= 0xFFFFFFDF;
679 ret_val = cx25821_i2c_write(&dev->i2c_bus[0], MON_A_CTRL, value);
680
681 if (ret_val < 0)
682 goto error;
683
684 /*
685 * FIXME: due to a coding bug the duration was always 0. It's
686 * likely that it really should be something else, but due to the
687 * lack of documentation I have no idea what it should be. For
688 * now just fill in 0 as the duration.
689 */
690 for (i = 0; i < dev->_max_num_decoders; i++)
691 medusa_set_decoderduration(dev, i, 0);
692
693 /* Select monitor as DENC A input, power up the DAC */
694 value = cx25821_i2c_read(&dev->i2c_bus[0], DENC_AB_CTRL, &tmp);
695 value &= 0xFF70FF70;
696 value |= 0x00090008; /* set en_active */
697 ret_val = cx25821_i2c_write(&dev->i2c_bus[0], DENC_AB_CTRL, value);
698
699 if (ret_val < 0)
700 goto error;
701
702 /* enable input is VIP/656 */
703 value = cx25821_i2c_read(&dev->i2c_bus[0], BYP_AB_CTRL, &tmp);
704 value |= 0x00040100; /* enable VIP */
705 ret_val = cx25821_i2c_write(&dev->i2c_bus[0], BYP_AB_CTRL, value);
706
707 if (ret_val < 0)
708 goto error;
709
710 /* select AFE clock to output mode */
711 value = cx25821_i2c_read(&dev->i2c_bus[0], AFE_AB_DIAG_CTRL, &tmp);
712 value &= 0x83FFFFFF;
713 ret_val = cx25821_i2c_write(&dev->i2c_bus[0], AFE_AB_DIAG_CTRL,
714 value | 0x10000000);
715
716 if (ret_val < 0)
717 goto error;
718
719 /* Turn on all of the data out and control output pins. */
720 value = cx25821_i2c_read(&dev->i2c_bus[0], PIN_OE_CTRL, &tmp);
721 value &= 0xFEF0FE00;
722 if (dev->_max_num_decoders == MAX_DECODERS) {
723 /*
724 * Note: The octal board does not support control pins(bit16-19)
725 * These bits are ignored in the octal board.
726 *
727 * disable VDEC A-C port, default to Mobilygen Interface
728 */
729 value |= 0x010001F8;
730 } else {
731 /* disable VDEC A-C port, default to Mobilygen Interface */
732 value |= 0x010F0108;
733 }
734
735 value |= 7;
736 ret_val = cx25821_i2c_write(&dev->i2c_bus[0], PIN_OE_CTRL, value);
737
738 if (ret_val < 0)
739 goto error;
740
741 ret_val = medusa_set_videostandard(dev);
742
743 error:
744 return ret_val;
745 }
Linux kernel - Deliverables
This page took 0.045747 seconds and 5 git commands to generate.