1 /*
2    cx231xx_avcore.c - driver for Conexant Cx23100/101/102
3 		      USB video capture devices
4 
5    Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
6 
7    This program contains the specific code to control the avdecoder chip and
8    other related usb control functions for cx231xx based chipset.
9 
10    This program is free software; you can redistribute it and/or modify
11    it under the terms of the GNU General Public License as published by
12    the Free Software Foundation; either version 2 of the License, or
13    (at your option) any later version.
14 
15    This program is distributed in the hope that it will be useful,
16    but WITHOUT ANY WARRANTY; without even the implied warranty of
17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18    GNU General Public License for more details.
19 
20    You should have received a copy of the GNU General Public License
21    along with this program; if not, write to the Free Software
22    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23  */
24 
25 #include "cx231xx.h"
26 #include <linux/init.h>
27 #include <linux/list.h>
28 #include <linux/module.h>
29 #include <linux/kernel.h>
30 #include <linux/bitmap.h>
31 #include <linux/i2c.h>
32 #include <linux/mm.h>
33 #include <linux/mutex.h>
34 #include <media/tuner.h>
35 
36 #include <media/v4l2-common.h>
37 #include <media/v4l2-ioctl.h>
38 
39 #include "cx231xx-dif.h"
40 
41 #define TUNER_MODE_FM_RADIO 0
42 /******************************************************************************
43 			-: BLOCK ARRANGEMENT :-
44 	I2S block ----------------------|
45 	[I2S audio]			|
46 					|
47 	Analog Front End --> Direct IF -|-> Cx25840 --> Audio
48 	[video & audio]			|   [Audio]
49 					|
50 					|-> Cx25840 --> Video
51 					    [Video]
52 
53 *******************************************************************************/
54 /******************************************************************************
55  *                    VERVE REGISTER                                          *
56  *									      *
57  ******************************************************************************/
58 static int verve_write_byte(struct cx231xx *dev, u8 saddr, u8 data)
59 {
60 	return cx231xx_write_i2c_data(dev, VERVE_I2C_ADDRESS,
61 					saddr, 1, data, 1);
62 }
63 
64 static int verve_read_byte(struct cx231xx *dev, u8 saddr, u8 *data)
65 {
66 	int status;
67 	u32 temp = 0;
68 
69 	status = cx231xx_read_i2c_data(dev, VERVE_I2C_ADDRESS,
70 					saddr, 1, &temp, 1);
71 	*data = (u8) temp;
72 	return status;
73 }
74 void initGPIO(struct cx231xx *dev)
75 {
76 	u32 _gpio_direction = 0;
77 	u32 value = 0;
78 	u8 val = 0;
79 
80 	_gpio_direction = _gpio_direction & 0xFC0003FF;
81 	_gpio_direction = _gpio_direction | 0x03FDFC00;
82 	cx231xx_send_gpio_cmd(dev, _gpio_direction, (u8 *)&value, 4, 0, 0);
83 
84 	verve_read_byte(dev, 0x07, &val);
85 	dev_dbg(dev->dev, "verve_read_byte address0x07=0x%x\n", val);
86 	verve_write_byte(dev, 0x07, 0xF4);
87 	verve_read_byte(dev, 0x07, &val);
88 	dev_dbg(dev->dev, "verve_read_byte address0x07=0x%x\n", val);
89 
90 	cx231xx_capture_start(dev, 1, Vbi);
91 
92 	cx231xx_mode_register(dev, EP_MODE_SET, 0x0500FE00);
93 	cx231xx_mode_register(dev, GBULK_BIT_EN, 0xFFFDFFFF);
94 
95 }
96 void uninitGPIO(struct cx231xx *dev)
97 {
98 	u8 value[4] = { 0, 0, 0, 0 };
99 
100 	cx231xx_capture_start(dev, 0, Vbi);
101 	verve_write_byte(dev, 0x07, 0x14);
102 	cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
103 			0x68, value, 4);
104 }
105 
106 /******************************************************************************
107  *                    A F E - B L O C K    C O N T R O L   functions          *
108  * 				[ANALOG FRONT END]			      *
109  ******************************************************************************/
110 static int afe_write_byte(struct cx231xx *dev, u16 saddr, u8 data)
111 {
112 	return cx231xx_write_i2c_data(dev, AFE_DEVICE_ADDRESS,
113 					saddr, 2, data, 1);
114 }
115 
116 static int afe_read_byte(struct cx231xx *dev, u16 saddr, u8 *data)
117 {
118 	int status;
119 	u32 temp = 0;
120 
121 	status = cx231xx_read_i2c_data(dev, AFE_DEVICE_ADDRESS,
122 					saddr, 2, &temp, 1);
123 	*data = (u8) temp;
124 	return status;
125 }
126 
127 int cx231xx_afe_init_super_block(struct cx231xx *dev, u32 ref_count)
128 {
129 	int status = 0;
130 	u8 temp = 0;
131 	u8 afe_power_status = 0;
132 	int i = 0;
133 
134 	/* super block initialize */
135 	temp = (u8) (ref_count & 0xff);
136 	status = afe_write_byte(dev, SUP_BLK_TUNE2, temp);
137 	if (status < 0)
138 		return status;
139 
140 	status = afe_read_byte(dev, SUP_BLK_TUNE2, &afe_power_status);
141 	if (status < 0)
142 		return status;
143 
144 	temp = (u8) ((ref_count & 0x300) >> 8);
145 	temp |= 0x40;
146 	status = afe_write_byte(dev, SUP_BLK_TUNE1, temp);
147 	if (status < 0)
148 		return status;
149 
150 	status = afe_write_byte(dev, SUP_BLK_PLL2, 0x0f);
151 	if (status < 0)
152 		return status;
153 
154 	/* enable pll     */
155 	while (afe_power_status != 0x18) {
156 		status = afe_write_byte(dev, SUP_BLK_PWRDN, 0x18);
157 		if (status < 0) {
158 			dev_dbg(dev->dev,
159 				"%s: Init Super Block failed in send cmd\n",
160 				__func__);
161 			break;
162 		}
163 
164 		status = afe_read_byte(dev, SUP_BLK_PWRDN, &afe_power_status);
165 		afe_power_status &= 0xff;
166 		if (status < 0) {
167 			dev_dbg(dev->dev,
168 				"%s: Init Super Block failed in receive cmd\n",
169 				__func__);
170 			break;
171 		}
172 		i++;
173 		if (i == 10) {
174 			dev_dbg(dev->dev,
175 				"%s: Init Super Block force break in loop !!!!\n",
176 				__func__);
177 			status = -1;
178 			break;
179 		}
180 	}
181 
182 	if (status < 0)
183 		return status;
184 
185 	/* start tuning filter */
186 	status = afe_write_byte(dev, SUP_BLK_TUNE3, 0x40);
187 	if (status < 0)
188 		return status;
189 
190 	msleep(5);
191 
192 	/* exit tuning */
193 	status = afe_write_byte(dev, SUP_BLK_TUNE3, 0x00);
194 
195 	return status;
196 }
197 
198 int cx231xx_afe_init_channels(struct cx231xx *dev)
199 {
200 	int status = 0;
201 
202 	/* power up all 3 channels, clear pd_buffer */
203 	status = afe_write_byte(dev, ADC_PWRDN_CLAMP_CH1, 0x00);
204 	status = afe_write_byte(dev, ADC_PWRDN_CLAMP_CH2, 0x00);
205 	status = afe_write_byte(dev, ADC_PWRDN_CLAMP_CH3, 0x00);
206 
207 	/* Enable quantizer calibration */
208 	status = afe_write_byte(dev, ADC_COM_QUANT, 0x02);
209 
210 	/* channel initialize, force modulator (fb) reset */
211 	status = afe_write_byte(dev, ADC_FB_FRCRST_CH1, 0x17);
212 	status = afe_write_byte(dev, ADC_FB_FRCRST_CH2, 0x17);
213 	status = afe_write_byte(dev, ADC_FB_FRCRST_CH3, 0x17);
214 
215 	/* start quantilizer calibration  */
216 	status = afe_write_byte(dev, ADC_CAL_ATEST_CH1, 0x10);
217 	status = afe_write_byte(dev, ADC_CAL_ATEST_CH2, 0x10);
218 	status = afe_write_byte(dev, ADC_CAL_ATEST_CH3, 0x10);
219 	msleep(5);
220 
221 	/* exit modulator (fb) reset */
222 	status = afe_write_byte(dev, ADC_FB_FRCRST_CH1, 0x07);
223 	status = afe_write_byte(dev, ADC_FB_FRCRST_CH2, 0x07);
224 	status = afe_write_byte(dev, ADC_FB_FRCRST_CH3, 0x07);
225 
226 	/* enable the pre_clamp in each channel for single-ended input */
227 	status = afe_write_byte(dev, ADC_NTF_PRECLMP_EN_CH1, 0xf0);
228 	status = afe_write_byte(dev, ADC_NTF_PRECLMP_EN_CH2, 0xf0);
229 	status = afe_write_byte(dev, ADC_NTF_PRECLMP_EN_CH3, 0xf0);
230 
231 	/* use diode instead of resistor, so set term_en to 0, res_en to 0  */
232 	status = cx231xx_reg_mask_write(dev, AFE_DEVICE_ADDRESS, 8,
233 				   ADC_QGAIN_RES_TRM_CH1, 3, 7, 0x00);
234 	status = cx231xx_reg_mask_write(dev, AFE_DEVICE_ADDRESS, 8,
235 				   ADC_QGAIN_RES_TRM_CH2, 3, 7, 0x00);
236 	status = cx231xx_reg_mask_write(dev, AFE_DEVICE_ADDRESS, 8,
237 				   ADC_QGAIN_RES_TRM_CH3, 3, 7, 0x00);
238 
239 	/* dynamic element matching off */
240 	status = afe_write_byte(dev, ADC_DCSERVO_DEM_CH1, 0x03);
241 	status = afe_write_byte(dev, ADC_DCSERVO_DEM_CH2, 0x03);
242 	status = afe_write_byte(dev, ADC_DCSERVO_DEM_CH3, 0x03);
243 
244 	return status;
245 }
246 
247 int cx231xx_afe_setup_AFE_for_baseband(struct cx231xx *dev)
248 {
249 	u8 c_value = 0;
250 	int status = 0;
251 
252 	status = afe_read_byte(dev, ADC_PWRDN_CLAMP_CH2, &c_value);
253 	c_value &= (~(0x50));
254 	status = afe_write_byte(dev, ADC_PWRDN_CLAMP_CH2, c_value);
255 
256 	return status;
257 }
258 
259 /*
260 	The Analog Front End in Cx231xx has 3 channels. These
261 	channels are used to share between different inputs
262 	like tuner, s-video and composite inputs.
263 
264 	channel 1 ----- pin 1  to pin4(in reg is 1-4)
265 	channel 2 ----- pin 5  to pin8(in reg is 5-8)
266 	channel 3 ----- pin 9 to pin 12(in reg is 9-11)
267 */
268 int cx231xx_afe_set_input_mux(struct cx231xx *dev, u32 input_mux)
269 {
270 	u8 ch1_setting = (u8) input_mux;
271 	u8 ch2_setting = (u8) (input_mux >> 8);
272 	u8 ch3_setting = (u8) (input_mux >> 16);
273 	int status = 0;
274 	u8 value = 0;
275 
276 	if (ch1_setting != 0) {
277 		status = afe_read_byte(dev, ADC_INPUT_CH1, &value);
278 		value &= ~INPUT_SEL_MASK;
279 		value |= (ch1_setting - 1) << 4;
280 		value &= 0xff;
281 		status = afe_write_byte(dev, ADC_INPUT_CH1, value);
282 	}
283 
284 	if (ch2_setting != 0) {
285 		status = afe_read_byte(dev, ADC_INPUT_CH2, &value);
286 		value &= ~INPUT_SEL_MASK;
287 		value |= (ch2_setting - 1) << 4;
288 		value &= 0xff;
289 		status = afe_write_byte(dev, ADC_INPUT_CH2, value);
290 	}
291 
292 	/* For ch3_setting, the value to put in the register is
293 	   7 less than the input number */
294 	if (ch3_setting != 0) {
295 		status = afe_read_byte(dev, ADC_INPUT_CH3, &value);
296 		value &= ~INPUT_SEL_MASK;
297 		value |= (ch3_setting - 1) << 4;
298 		value &= 0xff;
299 		status = afe_write_byte(dev, ADC_INPUT_CH3, value);
300 	}
301 
302 	return status;
303 }
304 
305 int cx231xx_afe_set_mode(struct cx231xx *dev, enum AFE_MODE mode)
306 {
307 	int status = 0;
308 
309 	/*
310 	* FIXME: We need to implement the AFE code for LOW IF and for HI IF.
311 	* Currently, only baseband works.
312 	*/
313 
314 	switch (mode) {
315 	case AFE_MODE_LOW_IF:
316 		cx231xx_Setup_AFE_for_LowIF(dev);
317 		break;
318 	case AFE_MODE_BASEBAND:
319 		status = cx231xx_afe_setup_AFE_for_baseband(dev);
320 		break;
321 	case AFE_MODE_EU_HI_IF:
322 		/* SetupAFEforEuHiIF(); */
323 		break;
324 	case AFE_MODE_US_HI_IF:
325 		/* SetupAFEforUsHiIF(); */
326 		break;
327 	case AFE_MODE_JAPAN_HI_IF:
328 		/* SetupAFEforJapanHiIF(); */
329 		break;
330 	}
331 
332 	if ((mode != dev->afe_mode) &&
333 		(dev->video_input == CX231XX_VMUX_TELEVISION))
334 		status = cx231xx_afe_adjust_ref_count(dev,
335 						     CX231XX_VMUX_TELEVISION);
336 
337 	dev->afe_mode = mode;
338 
339 	return status;
340 }
341 
342 int cx231xx_afe_update_power_control(struct cx231xx *dev,
343 					enum AV_MODE avmode)
344 {
345 	u8 afe_power_status = 0;
346 	int status = 0;
347 
348 	switch (dev->model) {
349 	case CX231XX_BOARD_CNXT_CARRAERA:
350 	case CX231XX_BOARD_CNXT_RDE_250:
351 	case CX231XX_BOARD_CNXT_SHELBY:
352 	case CX231XX_BOARD_CNXT_RDU_250:
353 	case CX231XX_BOARD_CNXT_RDE_253S:
354 	case CX231XX_BOARD_CNXT_RDU_253S:
355 	case CX231XX_BOARD_CNXT_VIDEO_GRABBER:
356 	case CX231XX_BOARD_HAUPPAUGE_EXETER:
357 	case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
358 	case CX231XX_BOARD_HAUPPAUGE_USBLIVE2:
359 	case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
360 	case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
361 	case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
362 	case CX231XX_BOARD_OTG102:
363 		if (avmode == POLARIS_AVMODE_ANALOGT_TV) {
364 			while (afe_power_status != (FLD_PWRDN_TUNING_BIAS |
365 						FLD_PWRDN_ENABLE_PLL)) {
366 				status = afe_write_byte(dev, SUP_BLK_PWRDN,
367 							FLD_PWRDN_TUNING_BIAS |
368 							FLD_PWRDN_ENABLE_PLL);
369 				status |= afe_read_byte(dev, SUP_BLK_PWRDN,
370 							&afe_power_status);
371 				if (status < 0)
372 					break;
373 			}
374 
375 			status = afe_write_byte(dev, ADC_PWRDN_CLAMP_CH1,
376 							0x00);
377 			status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH2,
378 							0x00);
379 			status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH3,
380 							0x00);
381 		} else if (avmode == POLARIS_AVMODE_DIGITAL) {
382 			status = afe_write_byte(dev, ADC_PWRDN_CLAMP_CH1,
383 							0x70);
384 			status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH2,
385 							0x70);
386 			status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH3,
387 							0x70);
388 
389 			status |= afe_read_byte(dev, SUP_BLK_PWRDN,
390 						  &afe_power_status);
391 			afe_power_status |= FLD_PWRDN_PD_BANDGAP |
392 						FLD_PWRDN_PD_BIAS |
393 						FLD_PWRDN_PD_TUNECK;
394 			status |= afe_write_byte(dev, SUP_BLK_PWRDN,
395 						   afe_power_status);
396 		} else if (avmode == POLARIS_AVMODE_ENXTERNAL_AV) {
397 			while (afe_power_status != (FLD_PWRDN_TUNING_BIAS |
398 						FLD_PWRDN_ENABLE_PLL)) {
399 				status = afe_write_byte(dev, SUP_BLK_PWRDN,
400 							FLD_PWRDN_TUNING_BIAS |
401 							FLD_PWRDN_ENABLE_PLL);
402 				status |= afe_read_byte(dev, SUP_BLK_PWRDN,
403 							&afe_power_status);
404 				if (status < 0)
405 					break;
406 			}
407 
408 			status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH1,
409 						0x00);
410 			status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH2,
411 						0x00);
412 			status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH3,
413 						0x00);
414 		} else {
415 			dev_dbg(dev->dev, "Invalid AV mode input\n");
416 			status = -1;
417 		}
418 		break;
419 	default:
420 		if (avmode == POLARIS_AVMODE_ANALOGT_TV) {
421 			while (afe_power_status != (FLD_PWRDN_TUNING_BIAS |
422 						FLD_PWRDN_ENABLE_PLL)) {
423 				status = afe_write_byte(dev, SUP_BLK_PWRDN,
424 							FLD_PWRDN_TUNING_BIAS |
425 							FLD_PWRDN_ENABLE_PLL);
426 				status |= afe_read_byte(dev, SUP_BLK_PWRDN,
427 							&afe_power_status);
428 				if (status < 0)
429 					break;
430 			}
431 
432 			status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH1,
433 							0x40);
434 			status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH2,
435 							0x40);
436 			status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH3,
437 							0x00);
438 		} else if (avmode == POLARIS_AVMODE_DIGITAL) {
439 			status = afe_write_byte(dev, ADC_PWRDN_CLAMP_CH1,
440 							0x70);
441 			status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH2,
442 							0x70);
443 			status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH3,
444 							0x70);
445 
446 			status |= afe_read_byte(dev, SUP_BLK_PWRDN,
447 						       &afe_power_status);
448 			afe_power_status |= FLD_PWRDN_PD_BANDGAP |
449 						FLD_PWRDN_PD_BIAS |
450 						FLD_PWRDN_PD_TUNECK;
451 			status |= afe_write_byte(dev, SUP_BLK_PWRDN,
452 							afe_power_status);
453 		} else if (avmode == POLARIS_AVMODE_ENXTERNAL_AV) {
454 			while (afe_power_status != (FLD_PWRDN_TUNING_BIAS |
455 						FLD_PWRDN_ENABLE_PLL)) {
456 				status = afe_write_byte(dev, SUP_BLK_PWRDN,
457 							FLD_PWRDN_TUNING_BIAS |
458 							FLD_PWRDN_ENABLE_PLL);
459 				status |= afe_read_byte(dev, SUP_BLK_PWRDN,
460 							&afe_power_status);
461 				if (status < 0)
462 					break;
463 			}
464 
465 			status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH1,
466 							0x00);
467 			status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH2,
468 							0x00);
469 			status |= afe_write_byte(dev, ADC_PWRDN_CLAMP_CH3,
470 							0x40);
471 		} else {
472 			dev_dbg(dev->dev, "Invalid AV mode input\n");
473 			status = -1;
474 		}
475 	}			/* switch  */
476 
477 	return status;
478 }
479 
480 int cx231xx_afe_adjust_ref_count(struct cx231xx *dev, u32 video_input)
481 {
482 	u8 input_mode = 0;
483 	u8 ntf_mode = 0;
484 	int status = 0;
485 
486 	dev->video_input = video_input;
487 
488 	if (video_input == CX231XX_VMUX_TELEVISION) {
489 		status = afe_read_byte(dev, ADC_INPUT_CH3, &input_mode);
490 		status = afe_read_byte(dev, ADC_NTF_PRECLMP_EN_CH3,
491 					&ntf_mode);
492 	} else {
493 		status = afe_read_byte(dev, ADC_INPUT_CH1, &input_mode);
494 		status = afe_read_byte(dev, ADC_NTF_PRECLMP_EN_CH1,
495 					&ntf_mode);
496 	}
497 
498 	input_mode = (ntf_mode & 0x3) | ((input_mode & 0x6) << 1);
499 
500 	switch (input_mode) {
501 	case SINGLE_ENDED:
502 		dev->afe_ref_count = 0x23C;
503 		break;
504 	case LOW_IF:
505 		dev->afe_ref_count = 0x24C;
506 		break;
507 	case EU_IF:
508 		dev->afe_ref_count = 0x258;
509 		break;
510 	case US_IF:
511 		dev->afe_ref_count = 0x260;
512 		break;
513 	default:
514 		break;
515 	}
516 
517 	status = cx231xx_afe_init_super_block(dev, dev->afe_ref_count);
518 
519 	return status;
520 }
521 
522 /******************************************************************************
523  *     V I D E O / A U D I O    D E C O D E R    C O N T R O L   functions    *
524  ******************************************************************************/
525 static int vid_blk_write_byte(struct cx231xx *dev, u16 saddr, u8 data)
526 {
527 	return cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS,
528 					saddr, 2, data, 1);
529 }
530 
531 static int vid_blk_read_byte(struct cx231xx *dev, u16 saddr, u8 *data)
532 {
533 	int status;
534 	u32 temp = 0;
535 
536 	status = cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
537 					saddr, 2, &temp, 1);
538 	*data = (u8) temp;
539 	return status;
540 }
541 
542 static int vid_blk_write_word(struct cx231xx *dev, u16 saddr, u32 data)
543 {
544 	return cx231xx_write_i2c_data(dev, VID_BLK_I2C_ADDRESS,
545 					saddr, 2, data, 4);
546 }
547 
548 static int vid_blk_read_word(struct cx231xx *dev, u16 saddr, u32 *data)
549 {
550 	return cx231xx_read_i2c_data(dev, VID_BLK_I2C_ADDRESS,
551 					saddr, 2, data, 4);
552 }
553 int cx231xx_check_fw(struct cx231xx *dev)
554 {
555 	u8 temp = 0;
556 	int status = 0;
557 	status = vid_blk_read_byte(dev, DL_CTL_ADDRESS_LOW, &temp);
558 	if (status < 0)
559 		return status;
560 	else
561 		return temp;
562 
563 }
564 
565 int cx231xx_set_video_input_mux(struct cx231xx *dev, u8 input)
566 {
567 	int status = 0;
568 
569 	switch (INPUT(input)->type) {
570 	case CX231XX_VMUX_COMPOSITE1:
571 	case CX231XX_VMUX_SVIDEO:
572 		if ((dev->current_pcb_config.type == USB_BUS_POWER) &&
573 		    (dev->power_mode != POLARIS_AVMODE_ENXTERNAL_AV)) {
574 			/* External AV */
575 			status = cx231xx_set_power_mode(dev,
576 					POLARIS_AVMODE_ENXTERNAL_AV);
577 			if (status < 0) {
578 				dev_err(dev->dev,
579 					"%s: Failed to set Power - errCode [%d]!\n",
580 					__func__, status);
581 				return status;
582 			}
583 		}
584 		status = cx231xx_set_decoder_video_input(dev,
585 							 INPUT(input)->type,
586 							 INPUT(input)->vmux);
587 		break;
588 	case CX231XX_VMUX_TELEVISION:
589 	case CX231XX_VMUX_CABLE:
590 		if ((dev->current_pcb_config.type == USB_BUS_POWER) &&
591 		    (dev->power_mode != POLARIS_AVMODE_ANALOGT_TV)) {
592 			/* Tuner */
593 			status = cx231xx_set_power_mode(dev,
594 						POLARIS_AVMODE_ANALOGT_TV);
595 			if (status < 0) {
596 				dev_err(dev->dev,
597 					"%s: Failed to set Power - errCode [%d]!\n",
598 					__func__, status);
599 				return status;
600 			}
601 		}
602 		if (dev->tuner_type == TUNER_NXP_TDA18271)
603 			status = cx231xx_set_decoder_video_input(dev,
604 							CX231XX_VMUX_TELEVISION,
605 							INPUT(input)->vmux);
606 		else
607 			status = cx231xx_set_decoder_video_input(dev,
608 							CX231XX_VMUX_COMPOSITE1,
609 							INPUT(input)->vmux);
610 
611 		break;
612 	default:
613 		dev_err(dev->dev, "%s: Unknown Input %d !\n",
614 			__func__, INPUT(input)->type);
615 		break;
616 	}
617 
618 	/* save the selection */
619 	dev->video_input = input;
620 
621 	return status;
622 }
623 
624 int cx231xx_set_decoder_video_input(struct cx231xx *dev,
625 				u8 pin_type, u8 input)
626 {
627 	int status = 0;
628 	u32 value = 0;
629 
630 	if (pin_type != dev->video_input) {
631 		status = cx231xx_afe_adjust_ref_count(dev, pin_type);
632 		if (status < 0) {
633 			dev_err(dev->dev,
634 				"%s: adjust_ref_count :Failed to set AFE input mux - errCode [%d]!\n",
635 				__func__, status);
636 			return status;
637 		}
638 	}
639 
640 	/* call afe block to set video inputs */
641 	status = cx231xx_afe_set_input_mux(dev, input);
642 	if (status < 0) {
643 		dev_err(dev->dev,
644 			"%s: set_input_mux :Failed to set AFE input mux - errCode [%d]!\n",
645 			__func__, status);
646 		return status;
647 	}
648 
649 	switch (pin_type) {
650 	case CX231XX_VMUX_COMPOSITE1:
651 		status = vid_blk_read_word(dev, AFE_CTRL, &value);
652 		value |= (0 << 13) | (1 << 4);
653 		value &= ~(1 << 5);
654 
655 		/* set [24:23] [22:15] to 0  */
656 		value &= (~(0x1ff8000));
657 		/* set FUNC_MODE[24:23] = 2 IF_MOD[22:15] = 0  */
658 		value |= 0x1000000;
659 		status = vid_blk_write_word(dev, AFE_CTRL, value);
660 
661 		status = vid_blk_read_word(dev, OUT_CTRL1, &value);
662 		value |= (1 << 7);
663 		status = vid_blk_write_word(dev, OUT_CTRL1, value);
664 
665 		/* Set output mode */
666 		status = cx231xx_read_modify_write_i2c_dword(dev,
667 							VID_BLK_I2C_ADDRESS,
668 							OUT_CTRL1,
669 							FLD_OUT_MODE,
670 							dev->board.output_mode);
671 
672 		/* Tell DIF object to go to baseband mode  */
673 		status = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
674 		if (status < 0) {
675 			dev_err(dev->dev,
676 				"%s: cx231xx_dif set to By pass mode- errCode [%d]!\n",
677 				__func__, status);
678 			return status;
679 		}
680 
681 		/* Read the DFE_CTRL1 register */
682 		status = vid_blk_read_word(dev, DFE_CTRL1, &value);
683 
684 		/* enable the VBI_GATE_EN */
685 		value |= FLD_VBI_GATE_EN;
686 
687 		/* Enable the auto-VGA enable */
688 		value |= FLD_VGA_AUTO_EN;
689 
690 		/* Write it back */
691 		status = vid_blk_write_word(dev, DFE_CTRL1, value);
692 
693 		/* Disable auto config of registers */
694 		status = cx231xx_read_modify_write_i2c_dword(dev,
695 					VID_BLK_I2C_ADDRESS,
696 					MODE_CTRL, FLD_ACFG_DIS,
697 					cx231xx_set_field(FLD_ACFG_DIS, 1));
698 
699 		/* Set CVBS input mode */
700 		status = cx231xx_read_modify_write_i2c_dword(dev,
701 			VID_BLK_I2C_ADDRESS,
702 			MODE_CTRL, FLD_INPUT_MODE,
703 			cx231xx_set_field(FLD_INPUT_MODE, INPUT_MODE_CVBS_0));
704 		break;
705 	case CX231XX_VMUX_SVIDEO:
706 		/* Disable the use of  DIF */
707 
708 		status = vid_blk_read_word(dev, AFE_CTRL, &value);
709 
710 		/* set [24:23] [22:15] to 0 */
711 		value &= (~(0x1ff8000));
712 		/* set FUNC_MODE[24:23] = 2
713 		IF_MOD[22:15] = 0 DCR_BYP_CH2[4:4] = 1; */
714 		value |= 0x1000010;
715 		status = vid_blk_write_word(dev, AFE_CTRL, value);
716 
717 		/* Tell DIF object to go to baseband mode */
718 		status = cx231xx_dif_set_standard(dev, DIF_USE_BASEBAND);
719 		if (status < 0) {
720 			dev_err(dev->dev,
721 				"%s: cx231xx_dif set to By pass mode- errCode [%d]!\n",
722 				__func__, status);
723 			return status;
724 		}
725 
726 		/* Read the DFE_CTRL1 register */
727 		status = vid_blk_read_word(dev, DFE_CTRL1, &value);
728 
729 		/* enable the VBI_GATE_EN */
730 		value |= FLD_VBI_GATE_EN;
731 
732 		/* Enable the auto-VGA enable */
733 		value |= FLD_VGA_AUTO_EN;
734 
735 		/* Write it back */
736 		status = vid_blk_write_word(dev, DFE_CTRL1, value);
737 
738 		/* Disable auto config of registers  */
739 		status =  cx231xx_read_modify_write_i2c_dword(dev,
740 					VID_BLK_I2C_ADDRESS,
741 					MODE_CTRL, FLD_ACFG_DIS,
742 					cx231xx_set_field(FLD_ACFG_DIS, 1));
743 
744 		/* Set YC input mode */
745 		status = cx231xx_read_modify_write_i2c_dword(dev,
746 			VID_BLK_I2C_ADDRESS,
747 			MODE_CTRL,
748 			FLD_INPUT_MODE,
749 			cx231xx_set_field(FLD_INPUT_MODE, INPUT_MODE_YC_1));
750 
751 		/* Chroma to ADC2 */
752 		status = vid_blk_read_word(dev, AFE_CTRL, &value);
753 		value |= FLD_CHROMA_IN_SEL;	/* set the chroma in select */
754 
755 		/* Clear VGA_SEL_CH2 and VGA_SEL_CH3 (bits 7 and 8)
756 		   This sets them to use video
757 		   rather than audio.  Only one of the two will be in use. */
758 		value &= ~(FLD_VGA_SEL_CH2 | FLD_VGA_SEL_CH3);
759 
760 		status = vid_blk_write_word(dev, AFE_CTRL, value);
761 
762 		status = cx231xx_afe_set_mode(dev, AFE_MODE_BASEBAND);
763 		break;
764 	case CX231XX_VMUX_TELEVISION:
765 	case CX231XX_VMUX_CABLE:
766 	default:
767 		/* TODO: Test if this is also needed for xc2028/xc3028 */
768 		if (dev->board.tuner_type == TUNER_XC5000) {
769 			/* Disable the use of  DIF   */
770 
771 			status = vid_blk_read_word(dev, AFE_CTRL, &value);
772 			value |= (0 << 13) | (1 << 4);
773 			value &= ~(1 << 5);
774 
775 			/* set [24:23] [22:15] to 0 */
776 			value &= (~(0x1FF8000));
777 			/* set FUNC_MODE[24:23] = 2 IF_MOD[22:15] = 0 */
778 			value |= 0x1000000;
779 			status = vid_blk_write_word(dev, AFE_CTRL, value);
780 
781 			status = vid_blk_read_word(dev, OUT_CTRL1, &value);
782 			value |= (1 << 7);
783 			status = vid_blk_write_word(dev, OUT_CTRL1, value);
784 
785 			/* Set output mode */
786 			status = cx231xx_read_modify_write_i2c_dword(dev,
787 							VID_BLK_I2C_ADDRESS,
788 							OUT_CTRL1, FLD_OUT_MODE,
789 							dev->board.output_mode);
790 
791 			/* Tell DIF object to go to baseband mode */
792 			status = cx231xx_dif_set_standard(dev,
793 							  DIF_USE_BASEBAND);
794 			if (status < 0) {
795 				dev_err(dev->dev,
796 					"%s: cx231xx_dif set to By pass mode- errCode [%d]!\n",
797 				       __func__, status);
798 				return status;
799 			}
800 
801 			/* Read the DFE_CTRL1 register */
802 			status = vid_blk_read_word(dev, DFE_CTRL1, &value);
803 
804 			/* enable the VBI_GATE_EN */
805 			value |= FLD_VBI_GATE_EN;
806 
807 			/* Enable the auto-VGA enable */
808 			value |= FLD_VGA_AUTO_EN;
809 
810 			/* Write it back */
811 			status = vid_blk_write_word(dev, DFE_CTRL1, value);
812 
813 			/* Disable auto config of registers */
814 			status = cx231xx_read_modify_write_i2c_dword(dev,
815 					VID_BLK_I2C_ADDRESS,
816 					MODE_CTRL, FLD_ACFG_DIS,
817 					cx231xx_set_field(FLD_ACFG_DIS, 1));
818 
819 			/* Set CVBS input mode */
820 			status = cx231xx_read_modify_write_i2c_dword(dev,
821 				VID_BLK_I2C_ADDRESS,
822 				MODE_CTRL, FLD_INPUT_MODE,
823 				cx231xx_set_field(FLD_INPUT_MODE,
824 						INPUT_MODE_CVBS_0));
825 		} else {
826 			/* Enable the DIF for the tuner */
827 
828 			/* Reinitialize the DIF */
829 			status = cx231xx_dif_set_standard(dev, dev->norm);
830 			if (status < 0) {
831 				dev_err(dev->dev,
832 					"%s: cx231xx_dif set to By pass mode- errCode [%d]!\n",
833 					__func__, status);
834 				return status;
835 			}
836 
837 			/* Make sure bypass is cleared */
838 			status = vid_blk_read_word(dev, DIF_MISC_CTRL, &value);
839 
840 			/* Clear the bypass bit */
841 			value &= ~FLD_DIF_DIF_BYPASS;
842 
843 			/* Enable the use of the DIF block */
844 			status = vid_blk_write_word(dev, DIF_MISC_CTRL, value);
845 
846 			/* Read the DFE_CTRL1 register */
847 			status = vid_blk_read_word(dev, DFE_CTRL1, &value);
848 
849 			/* Disable the VBI_GATE_EN */
850 			value &= ~FLD_VBI_GATE_EN;
851 
852 			/* Enable the auto-VGA enable, AGC, and
853 			   set the skip count to 2 */
854 			value |= FLD_VGA_AUTO_EN | FLD_AGC_AUTO_EN | 0x00200000;
855 
856 			/* Write it back */
857 			status = vid_blk_write_word(dev, DFE_CTRL1, value);
858 
859 			/* Wait until AGC locks up */
860 			msleep(1);
861 
862 			/* Disable the auto-VGA enable AGC */
863 			value &= ~(FLD_VGA_AUTO_EN);
864 
865 			/* Write it back */
866 			status = vid_blk_write_word(dev, DFE_CTRL1, value);
867 
868 			/* Enable Polaris B0 AGC output */
869 			status = vid_blk_read_word(dev, PIN_CTRL, &value);
870 			value |= (FLD_OEF_AGC_RF) |
871 				 (FLD_OEF_AGC_IFVGA) |
872 				 (FLD_OEF_AGC_IF);
873 			status = vid_blk_write_word(dev, PIN_CTRL, value);
874 
875 			/* Set output mode */
876 			status = cx231xx_read_modify_write_i2c_dword(dev,
877 						VID_BLK_I2C_ADDRESS,
878 						OUT_CTRL1, FLD_OUT_MODE,
879 						dev->board.output_mode);
880 
881 			/* Disable auto config of registers */
882 			status = cx231xx_read_modify_write_i2c_dword(dev,
883 					VID_BLK_I2C_ADDRESS,
884 					MODE_CTRL, FLD_ACFG_DIS,
885 					cx231xx_set_field(FLD_ACFG_DIS, 1));
886 
887 			/* Set CVBS input mode */
888 			status = cx231xx_read_modify_write_i2c_dword(dev,
889 				VID_BLK_I2C_ADDRESS,
890 				MODE_CTRL, FLD_INPUT_MODE,
891 				cx231xx_set_field(FLD_INPUT_MODE,
892 						INPUT_MODE_CVBS_0));
893 
894 			/* Set some bits in AFE_CTRL so that channel 2 or 3
895 			 * is ready to receive audio */
896 			/* Clear clamp for channels 2 and 3      (bit 16-17) */
897 			/* Clear droop comp                      (bit 19-20) */
898 			/* Set VGA_SEL (for audio control)       (bit 7-8) */
899 			status = vid_blk_read_word(dev, AFE_CTRL, &value);
900 
901 			/*Set Func mode:01-DIF 10-baseband 11-YUV*/
902 			value &= (~(FLD_FUNC_MODE));
903 			value |= 0x800000;
904 
905 			value |= FLD_VGA_SEL_CH3 | FLD_VGA_SEL_CH2;
906 
907 			status = vid_blk_write_word(dev, AFE_CTRL, value);
908 
909 			if (dev->tuner_type == TUNER_NXP_TDA18271) {
910 				status = vid_blk_read_word(dev, PIN_CTRL,
911 				 &value);
912 				status = vid_blk_write_word(dev, PIN_CTRL,
913 				 (value & 0xFFFFFFEF));
914 			}
915 
916 			break;
917 
918 		}
919 		break;
920 	}
921 
922 	/* Set raw VBI mode */
923 	status = cx231xx_read_modify_write_i2c_dword(dev,
924 				VID_BLK_I2C_ADDRESS,
925 				OUT_CTRL1, FLD_VBIHACTRAW_EN,
926 				cx231xx_set_field(FLD_VBIHACTRAW_EN, 1));
927 
928 	status = vid_blk_read_word(dev, OUT_CTRL1, &value);
929 	if (value & 0x02) {
930 		value |= (1 << 19);
931 		status = vid_blk_write_word(dev, OUT_CTRL1, value);
932 	}
933 
934 	return status;
935 }
936 
937 void cx231xx_enable656(struct cx231xx *dev)
938 {
939 	u8 temp = 0;
940 	/*enable TS1 data[0:7] as output to export 656*/
941 
942 	vid_blk_write_byte(dev, TS1_PIN_CTL0, 0xFF);
943 
944 	/*enable TS1 clock as output to export 656*/
945 
946 	vid_blk_read_byte(dev, TS1_PIN_CTL1, &temp);
947 	temp = temp|0x04;
948 
949 	vid_blk_write_byte(dev, TS1_PIN_CTL1, temp);
950 }
951 EXPORT_SYMBOL_GPL(cx231xx_enable656);
952 
953 void cx231xx_disable656(struct cx231xx *dev)
954 {
955 	u8 temp = 0;
956 
957 	vid_blk_write_byte(dev, TS1_PIN_CTL0, 0x00);
958 
959 	vid_blk_read_byte(dev, TS1_PIN_CTL1, &temp);
960 	temp = temp&0xFB;
961 
962 	vid_blk_write_byte(dev, TS1_PIN_CTL1, temp);
963 }
964 EXPORT_SYMBOL_GPL(cx231xx_disable656);
965 
966 /*
967  * Handle any video-mode specific overrides that are different
968  * on a per video standards basis after touching the MODE_CTRL
969  * register which resets many values for autodetect
970  */
971 int cx231xx_do_mode_ctrl_overrides(struct cx231xx *dev)
972 {
973 	int status = 0;
974 
975 	dev_dbg(dev->dev, "%s: 0x%x\n",
976 		__func__, (unsigned int)dev->norm);
977 
978 	/* Change the DFE_CTRL3 bp_percent to fix flagging */
979 	status = vid_blk_write_word(dev, DFE_CTRL3, 0xCD3F0280);
980 
981 	if (dev->norm & (V4L2_STD_NTSC | V4L2_STD_PAL_M)) {
982 		dev_dbg(dev->dev, "%s: NTSC\n", __func__);
983 
984 		/* Move the close caption lines out of active video,
985 		   adjust the active video start point */
986 		status = cx231xx_read_modify_write_i2c_dword(dev,
987 							VID_BLK_I2C_ADDRESS,
988 							VERT_TIM_CTRL,
989 							FLD_VBLANK_CNT, 0x18);
990 		status = cx231xx_read_modify_write_i2c_dword(dev,
991 							VID_BLK_I2C_ADDRESS,
992 							VERT_TIM_CTRL,
993 							FLD_VACTIVE_CNT,
994 							0x1E7000);
995 		status = cx231xx_read_modify_write_i2c_dword(dev,
996 							VID_BLK_I2C_ADDRESS,
997 							VERT_TIM_CTRL,
998 							FLD_V656BLANK_CNT,
999 							0x1C000000);
1000 
1001 		status = cx231xx_read_modify_write_i2c_dword(dev,
1002 							VID_BLK_I2C_ADDRESS,
1003 							HORIZ_TIM_CTRL,
1004 							FLD_HBLANK_CNT,
1005 							cx231xx_set_field
1006 							(FLD_HBLANK_CNT, 0x79));
1007 
1008 	} else if (dev->norm & V4L2_STD_SECAM) {
1009 		dev_dbg(dev->dev, "%s: SECAM\n", __func__);
1010 		status =  cx231xx_read_modify_write_i2c_dword(dev,
1011 							VID_BLK_I2C_ADDRESS,
1012 							VERT_TIM_CTRL,
1013 							FLD_VBLANK_CNT, 0x20);
1014 		status = cx231xx_read_modify_write_i2c_dword(dev,
1015 							VID_BLK_I2C_ADDRESS,
1016 							VERT_TIM_CTRL,
1017 							FLD_VACTIVE_CNT,
1018 							cx231xx_set_field
1019 							(FLD_VACTIVE_CNT,
1020 							 0x244));
1021 		status = cx231xx_read_modify_write_i2c_dword(dev,
1022 							VID_BLK_I2C_ADDRESS,
1023 							VERT_TIM_CTRL,
1024 							FLD_V656BLANK_CNT,
1025 							cx231xx_set_field
1026 							(FLD_V656BLANK_CNT,
1027 							0x24));
1028 		/* Adjust the active video horizontal start point */
1029 		status = cx231xx_read_modify_write_i2c_dword(dev,
1030 							VID_BLK_I2C_ADDRESS,
1031 							HORIZ_TIM_CTRL,
1032 							FLD_HBLANK_CNT,
1033 							cx231xx_set_field
1034 							(FLD_HBLANK_CNT, 0x85));
1035 	} else {
1036 		dev_dbg(dev->dev, "%s: PAL\n", __func__);
1037 		status = cx231xx_read_modify_write_i2c_dword(dev,
1038 							VID_BLK_I2C_ADDRESS,
1039 							VERT_TIM_CTRL,
1040 							FLD_VBLANK_CNT, 0x20);
1041 		status = cx231xx_read_modify_write_i2c_dword(dev,
1042 							VID_BLK_I2C_ADDRESS,
1043 							VERT_TIM_CTRL,
1044 							FLD_VACTIVE_CNT,
1045 							cx231xx_set_field
1046 							(FLD_VACTIVE_CNT,
1047 							 0x244));
1048 		status = cx231xx_read_modify_write_i2c_dword(dev,
1049 							VID_BLK_I2C_ADDRESS,
1050 							VERT_TIM_CTRL,
1051 							FLD_V656BLANK_CNT,
1052 							cx231xx_set_field
1053 							(FLD_V656BLANK_CNT,
1054 							0x24));
1055 		/* Adjust the active video horizontal start point */
1056 		status = cx231xx_read_modify_write_i2c_dword(dev,
1057 							VID_BLK_I2C_ADDRESS,
1058 							HORIZ_TIM_CTRL,
1059 							FLD_HBLANK_CNT,
1060 							cx231xx_set_field
1061 							(FLD_HBLANK_CNT, 0x85));
1062 
1063 	}
1064 
1065 	return status;
1066 }
1067 
1068 int cx231xx_unmute_audio(struct cx231xx *dev)
1069 {
1070 	return vid_blk_write_byte(dev, PATH1_VOL_CTL, 0x24);
1071 }
1072 EXPORT_SYMBOL_GPL(cx231xx_unmute_audio);
1073 
1074 static int stopAudioFirmware(struct cx231xx *dev)
1075 {
1076 	return vid_blk_write_byte(dev, DL_CTL_CONTROL, 0x03);
1077 }
1078 
1079 static int restartAudioFirmware(struct cx231xx *dev)
1080 {
1081 	return vid_blk_write_byte(dev, DL_CTL_CONTROL, 0x13);
1082 }
1083 
1084 int cx231xx_set_audio_input(struct cx231xx *dev, u8 input)
1085 {
1086 	int status = 0;
1087 	enum AUDIO_INPUT ainput = AUDIO_INPUT_LINE;
1088 
1089 	switch (INPUT(input)->amux) {
1090 	case CX231XX_AMUX_VIDEO:
1091 		ainput = AUDIO_INPUT_TUNER_TV;
1092 		break;
1093 	case CX231XX_AMUX_LINE_IN:
1094 		status = cx231xx_i2s_blk_set_audio_input(dev, input);
1095 		ainput = AUDIO_INPUT_LINE;
1096 		break;
1097 	default:
1098 		break;
1099 	}
1100 
1101 	status = cx231xx_set_audio_decoder_input(dev, ainput);
1102 
1103 	return status;
1104 }
1105 
1106 int cx231xx_set_audio_decoder_input(struct cx231xx *dev,
1107 				    enum AUDIO_INPUT audio_input)
1108 {
1109 	u32 dwval;
1110 	int status;
1111 	u8 gen_ctrl;
1112 	u32 value = 0;
1113 
1114 	/* Put it in soft reset   */
1115 	status = vid_blk_read_byte(dev, GENERAL_CTL, &gen_ctrl);
1116 	gen_ctrl |= 1;
1117 	status = vid_blk_write_byte(dev, GENERAL_CTL, gen_ctrl);
1118 
1119 	switch (audio_input) {
1120 	case AUDIO_INPUT_LINE:
1121 		/* setup AUD_IO control from Merlin paralle output */
1122 		value = cx231xx_set_field(FLD_AUD_CHAN1_SRC,
1123 					  AUD_CHAN_SRC_PARALLEL);
1124 		status = vid_blk_write_word(dev, AUD_IO_CTRL, value);
1125 
1126 		/* setup input to Merlin, SRC2 connect to AC97
1127 		   bypass upsample-by-2, slave mode, sony mode, left justify
1128 		   adr 091c, dat 01000000 */
1129 		status = vid_blk_read_word(dev, AC97_CTL, &dwval);
1130 
1131 		status = vid_blk_write_word(dev, AC97_CTL,
1132 					   (dwval | FLD_AC97_UP2X_BYPASS));
1133 
1134 		/* select the parallel1 and SRC3 */
1135 		status = vid_blk_write_word(dev, BAND_OUT_SEL,
1136 				cx231xx_set_field(FLD_SRC3_IN_SEL, 0x0) |
1137 				cx231xx_set_field(FLD_SRC3_CLK_SEL, 0x0) |
1138 				cx231xx_set_field(FLD_PARALLEL1_SRC_SEL, 0x0));
1139 
1140 		/* unmute all, AC97 in, independence mode
1141 		   adr 08d0, data 0x00063073 */
1142 		status = vid_blk_write_word(dev, DL_CTL, 0x3000001);
1143 		status = vid_blk_write_word(dev, PATH1_CTL1, 0x00063073);
1144 
1145 		/* set AVC maximum threshold, adr 08d4, dat ffff0024 */
1146 		status = vid_blk_read_word(dev, PATH1_VOL_CTL, &dwval);
1147 		status = vid_blk_write_word(dev, PATH1_VOL_CTL,
1148 					   (dwval | FLD_PATH1_AVC_THRESHOLD));
1149 
1150 		/* set SC maximum threshold, adr 08ec, dat ffffb3a3 */
1151 		status = vid_blk_read_word(dev, PATH1_SC_CTL, &dwval);
1152 		status = vid_blk_write_word(dev, PATH1_SC_CTL,
1153 					   (dwval | FLD_PATH1_SC_THRESHOLD));
1154 		break;
1155 
1156 	case AUDIO_INPUT_TUNER_TV:
1157 	default:
1158 		status = stopAudioFirmware(dev);
1159 		/* Setup SRC sources and clocks */
1160 		status = vid_blk_write_word(dev, BAND_OUT_SEL,
1161 			cx231xx_set_field(FLD_SRC6_IN_SEL, 0x00)         |
1162 			cx231xx_set_field(FLD_SRC6_CLK_SEL, 0x01)        |
1163 			cx231xx_set_field(FLD_SRC5_IN_SEL, 0x00)         |
1164 			cx231xx_set_field(FLD_SRC5_CLK_SEL, 0x02)        |
1165 			cx231xx_set_field(FLD_SRC4_IN_SEL, 0x02)         |
1166 			cx231xx_set_field(FLD_SRC4_CLK_SEL, 0x03)        |
1167 			cx231xx_set_field(FLD_SRC3_IN_SEL, 0x00)         |
1168 			cx231xx_set_field(FLD_SRC3_CLK_SEL, 0x00)        |
1169 			cx231xx_set_field(FLD_BASEBAND_BYPASS_CTL, 0x00) |
1170 			cx231xx_set_field(FLD_AC97_SRC_SEL, 0x03)        |
1171 			cx231xx_set_field(FLD_I2S_SRC_SEL, 0x00)         |
1172 			cx231xx_set_field(FLD_PARALLEL2_SRC_SEL, 0x02)   |
1173 			cx231xx_set_field(FLD_PARALLEL1_SRC_SEL, 0x01));
1174 
1175 		/* Setup the AUD_IO control */
1176 		status = vid_blk_write_word(dev, AUD_IO_CTRL,
1177 			cx231xx_set_field(FLD_I2S_PORT_DIR, 0x00)  |
1178 			cx231xx_set_field(FLD_I2S_OUT_SRC, 0x00)   |
1179 			cx231xx_set_field(FLD_AUD_CHAN3_SRC, 0x00) |
1180 			cx231xx_set_field(FLD_AUD_CHAN2_SRC, 0x00) |
1181 			cx231xx_set_field(FLD_AUD_CHAN1_SRC, 0x03));
1182 
1183 		status = vid_blk_write_word(dev, PATH1_CTL1, 0x1F063870);
1184 
1185 		/* setAudioStandard(_audio_standard); */
1186 		status = vid_blk_write_word(dev, PATH1_CTL1, 0x00063870);
1187 
1188 		status = restartAudioFirmware(dev);
1189 
1190 		switch (dev->board.tuner_type) {
1191 		case TUNER_XC5000:
1192 			/* SIF passthrough at 28.6363 MHz sample rate */
1193 			status = cx231xx_read_modify_write_i2c_dword(dev,
1194 					VID_BLK_I2C_ADDRESS,
1195 					CHIP_CTRL,
1196 					FLD_SIF_EN,
1197 					cx231xx_set_field(FLD_SIF_EN, 1));
1198 			break;
1199 		case TUNER_NXP_TDA18271:
1200 			/* Normal mode: SIF passthrough at 14.32 MHz */
1201 			status = cx231xx_read_modify_write_i2c_dword(dev,
1202 					VID_BLK_I2C_ADDRESS,
1203 					CHIP_CTRL,
1204 					FLD_SIF_EN,
1205 					cx231xx_set_field(FLD_SIF_EN, 0));
1206 			break;
1207 		default:
1208 			/* This is just a casual suggestion to people adding
1209 			   new boards in case they use a tuner type we don't
1210 			   currently know about */
1211 			dev_info(dev->dev,
1212 				 "Unknown tuner type configuring SIF");
1213 			break;
1214 		}
1215 		break;
1216 
1217 	case AUDIO_INPUT_TUNER_FM:
1218 		/*  use SIF for FM radio
1219 		   setupFM();
1220 		   setAudioStandard(_audio_standard);
1221 		 */
1222 		break;
1223 
1224 	case AUDIO_INPUT_MUTE:
1225 		status = vid_blk_write_word(dev, PATH1_CTL1, 0x1F011012);
1226 		break;
1227 	}
1228 
1229 	/* Take it out of soft reset */
1230 	status = vid_blk_read_byte(dev, GENERAL_CTL, &gen_ctrl);
1231 	gen_ctrl &= ~1;
1232 	status = vid_blk_write_byte(dev, GENERAL_CTL, gen_ctrl);
1233 
1234 	return status;
1235 }
1236 
1237 /******************************************************************************
1238  *                    C H I P Specific  C O N T R O L   functions             *
1239  ******************************************************************************/
1240 int cx231xx_init_ctrl_pin_status(struct cx231xx *dev)
1241 {
1242 	u32 value;
1243 	int status = 0;
1244 
1245 	status = vid_blk_read_word(dev, PIN_CTRL, &value);
1246 	value |= (~dev->board.ctl_pin_status_mask);
1247 	status = vid_blk_write_word(dev, PIN_CTRL, value);
1248 
1249 	return status;
1250 }
1251 
1252 int cx231xx_set_agc_analog_digital_mux_select(struct cx231xx *dev,
1253 					      u8 analog_or_digital)
1254 {
1255 	int status = 0;
1256 
1257 	/* first set the direction to output */
1258 	status = cx231xx_set_gpio_direction(dev,
1259 					    dev->board.
1260 					    agc_analog_digital_select_gpio, 1);
1261 
1262 	/* 0 - demod ; 1 - Analog mode */
1263 	status = cx231xx_set_gpio_value(dev,
1264 				   dev->board.agc_analog_digital_select_gpio,
1265 				   analog_or_digital);
1266 
1267 	if (status < 0)
1268 		return status;
1269 
1270 	return 0;
1271 }
1272 
1273 int cx231xx_enable_i2c_port_3(struct cx231xx *dev, bool is_port_3)
1274 {
1275 	u8 value[4] = { 0, 0, 0, 0 };
1276 	int status = 0;
1277 	bool current_is_port_3;
1278 
1279 	/*
1280 	 * Should this code check dev->port_3_switch_enabled first
1281 	 * to skip unnecessary reading of the register?
1282 	 * If yes, the flag dev->port_3_switch_enabled must be initialized
1283 	 * correctly.
1284 	 */
1285 
1286 	status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
1287 				       PWR_CTL_EN, value, 4);
1288 	if (status < 0)
1289 		return status;
1290 
1291 	current_is_port_3 = value[0] & I2C_DEMOD_EN ? true : false;
1292 
1293 	/* Just return, if already using the right port */
1294 	if (current_is_port_3 == is_port_3)
1295 		return 0;
1296 
1297 	if (is_port_3)
1298 		value[0] |= I2C_DEMOD_EN;
1299 	else
1300 		value[0] &= ~I2C_DEMOD_EN;
1301 
1302 	status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1303 					PWR_CTL_EN, value, 4);
1304 
1305 	/* remember status of the switch for usage in is_tuner */
1306 	if (status >= 0)
1307 		dev->port_3_switch_enabled = is_port_3;
1308 
1309 	return status;
1310 
1311 }
1312 EXPORT_SYMBOL_GPL(cx231xx_enable_i2c_port_3);
1313 
1314 void update_HH_register_after_set_DIF(struct cx231xx *dev)
1315 {
1316 /*
1317 	u8 status = 0;
1318 	u32 value = 0;
1319 
1320 	vid_blk_write_word(dev, PIN_CTRL, 0xA0FFF82F);
1321 	vid_blk_write_word(dev, DIF_MISC_CTRL, 0x0A203F11);
1322 	vid_blk_write_word(dev, DIF_SRC_PHASE_INC, 0x1BEFBF06);
1323 
1324 	status = vid_blk_read_word(dev, AFE_CTRL_C2HH_SRC_CTRL, &value);
1325 	vid_blk_write_word(dev, AFE_CTRL_C2HH_SRC_CTRL, 0x4485D390);
1326 	status = vid_blk_read_word(dev, AFE_CTRL_C2HH_SRC_CTRL,  &value);
1327 */
1328 }
1329 
1330 void cx231xx_dump_HH_reg(struct cx231xx *dev)
1331 {
1332 	u32 value = 0;
1333 	u16  i = 0;
1334 
1335 	value = 0x45005390;
1336 	vid_blk_write_word(dev, 0x104, value);
1337 
1338 	for (i = 0x100; i < 0x140; i++) {
1339 		vid_blk_read_word(dev, i, &value);
1340 		dev_dbg(dev->dev, "reg0x%x=0x%x\n", i, value);
1341 		i = i+3;
1342 	}
1343 
1344 	for (i = 0x300; i < 0x400; i++) {
1345 		vid_blk_read_word(dev, i, &value);
1346 		dev_dbg(dev->dev, "reg0x%x=0x%x\n", i, value);
1347 		i = i+3;
1348 	}
1349 
1350 	for (i = 0x400; i < 0x440; i++) {
1351 		vid_blk_read_word(dev, i,  &value);
1352 		dev_dbg(dev->dev, "reg0x%x=0x%x\n", i, value);
1353 		i = i+3;
1354 	}
1355 
1356 	vid_blk_read_word(dev, AFE_CTRL_C2HH_SRC_CTRL, &value);
1357 	dev_dbg(dev->dev, "AFE_CTRL_C2HH_SRC_CTRL=0x%x\n", value);
1358 	vid_blk_write_word(dev, AFE_CTRL_C2HH_SRC_CTRL, 0x4485D390);
1359 	vid_blk_read_word(dev, AFE_CTRL_C2HH_SRC_CTRL, &value);
1360 	dev_dbg(dev->dev, "AFE_CTRL_C2HH_SRC_CTRL=0x%x\n", value);
1361 }
1362 
1363 #if 0
1364 static void cx231xx_dump_SC_reg(struct cx231xx *dev)
1365 {
1366 	u8 value[4] = { 0, 0, 0, 0 };
1367 	dev_dbg(dev->dev, "%s!\n", __func__);
1368 
1369 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, BOARD_CFG_STAT,
1370 				 value, 4);
1371 	dev_dbg(dev->dev,
1372 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", BOARD_CFG_STAT, value[0],
1373 		value[1], value[2], value[3]);
1374 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, TS_MODE_REG,
1375 				 value, 4);
1376 	dev_dbg(dev->dev,
1377 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", TS_MODE_REG, value[0],
1378 		 value[1], value[2], value[3]);
1379 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, TS1_CFG_REG,
1380 				 value, 4);
1381 	dev_dbg(dev->dev,
1382 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", TS1_CFG_REG, value[0],
1383 		 value[1], value[2], value[3]);
1384 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, TS1_LENGTH_REG,
1385 				 value, 4);
1386 	dev_dbg(dev->dev,
1387 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", TS1_LENGTH_REG, value[0],
1388 		value[1], value[2], value[3]);
1389 
1390 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, TS2_CFG_REG,
1391 				 value, 4);
1392 	dev_dbg(dev->dev,
1393 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", TS2_CFG_REG, value[0],
1394 		value[1], value[2], value[3]);
1395 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, TS2_LENGTH_REG,
1396 				 value, 4);
1397 	dev_dbg(dev->dev,
1398 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", TS2_LENGTH_REG, value[0],
1399 		value[1], value[2], value[3]);
1400 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, EP_MODE_SET,
1401 				 value, 4);
1402 	dev_dbg(dev->dev,
1403 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", EP_MODE_SET, value[0],
1404 		 value[1], value[2], value[3]);
1405 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, CIR_PWR_PTN1,
1406 				 value, 4);
1407 	dev_dbg(dev->dev,
1408 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", CIR_PWR_PTN1, value[0],
1409 		value[1], value[2], value[3]);
1410 
1411 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, CIR_PWR_PTN2,
1412 				 value, 4);
1413 	dev_dbg(dev->dev,
1414 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", CIR_PWR_PTN2, value[0],
1415 		value[1], value[2], value[3]);
1416 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, CIR_PWR_PTN3,
1417 				 value, 4);
1418 	dev_dbg(dev->dev,
1419 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", CIR_PWR_PTN3, value[0],
1420 		value[1], value[2], value[3]);
1421 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, CIR_PWR_MASK0,
1422 				 value, 4);
1423 	dev_dbg(dev->dev,
1424 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", CIR_PWR_MASK0, value[0],
1425 		value[1], value[2], value[3]);
1426 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, CIR_PWR_MASK1,
1427 				 value, 4);
1428 	dev_dbg(dev->dev,
1429 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", CIR_PWR_MASK1, value[0],
1430 		value[1], value[2], value[3]);
1431 
1432 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, CIR_PWR_MASK2,
1433 				 value, 4);
1434 	dev_dbg(dev->dev,
1435 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", CIR_PWR_MASK2, value[0],
1436 		value[1], value[2], value[3]);
1437 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, CIR_GAIN,
1438 				 value, 4);
1439 	dev_dbg(dev->dev,
1440 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", CIR_GAIN, value[0],
1441 		value[1], value[2], value[3]);
1442 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, CIR_CAR_REG,
1443 				 value, 4);
1444 	dev_dbg(dev->dev,
1445 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", CIR_CAR_REG, value[0],
1446 		value[1], value[2], value[3]);
1447 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, CIR_OT_CFG1,
1448 				 value, 4);
1449 	dev_dbg(dev->dev,
1450 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", CIR_OT_CFG1, value[0],
1451 		value[1], value[2], value[3]);
1452 
1453 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, CIR_OT_CFG2,
1454 				 value, 4);
1455 	dev_dbg(dev->dev,
1456 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", CIR_OT_CFG2, value[0],
1457 		value[1], value[2], value[3]);
1458 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
1459 				 value, 4);
1460 	dev_dbg(dev->dev,
1461 		"reg0x%x=0x%x 0x%x 0x%x 0x%x\n", PWR_CTL_EN, value[0],
1462 		value[1], value[2], value[3]);
1463 }
1464 #endif
1465 
1466 void cx231xx_Setup_AFE_for_LowIF(struct cx231xx *dev)
1467 
1468 {
1469 	u8 value = 0;
1470 
1471 	afe_read_byte(dev, ADC_STATUS2_CH3, &value);
1472 	value = (value & 0xFE)|0x01;
1473 	afe_write_byte(dev, ADC_STATUS2_CH3, value);
1474 
1475 	afe_read_byte(dev, ADC_STATUS2_CH3, &value);
1476 	value = (value & 0xFE)|0x00;
1477 	afe_write_byte(dev, ADC_STATUS2_CH3, value);
1478 
1479 
1480 /*
1481 	config colibri to lo-if mode
1482 
1483 	FIXME: ntf_mode = 2'b00 by default. But set 0x1 would reduce
1484 		the diff IF input by half,
1485 
1486 		for low-if agc defect
1487 */
1488 
1489 	afe_read_byte(dev, ADC_NTF_PRECLMP_EN_CH3, &value);
1490 	value = (value & 0xFC)|0x00;
1491 	afe_write_byte(dev, ADC_NTF_PRECLMP_EN_CH3, value);
1492 
1493 	afe_read_byte(dev, ADC_INPUT_CH3, &value);
1494 	value = (value & 0xF9)|0x02;
1495 	afe_write_byte(dev, ADC_INPUT_CH3, value);
1496 
1497 	afe_read_byte(dev, ADC_FB_FRCRST_CH3, &value);
1498 	value = (value & 0xFB)|0x04;
1499 	afe_write_byte(dev, ADC_FB_FRCRST_CH3, value);
1500 
1501 	afe_read_byte(dev, ADC_DCSERVO_DEM_CH3, &value);
1502 	value = (value & 0xFC)|0x03;
1503 	afe_write_byte(dev, ADC_DCSERVO_DEM_CH3, value);
1504 
1505 	afe_read_byte(dev, ADC_CTRL_DAC1_CH3, &value);
1506 	value = (value & 0xFB)|0x04;
1507 	afe_write_byte(dev, ADC_CTRL_DAC1_CH3, value);
1508 
1509 	afe_read_byte(dev, ADC_CTRL_DAC23_CH3, &value);
1510 	value = (value & 0xF8)|0x06;
1511 	afe_write_byte(dev, ADC_CTRL_DAC23_CH3, value);
1512 
1513 	afe_read_byte(dev, ADC_CTRL_DAC23_CH3, &value);
1514 	value = (value & 0x8F)|0x40;
1515 	afe_write_byte(dev, ADC_CTRL_DAC23_CH3, value);
1516 
1517 	afe_read_byte(dev, ADC_PWRDN_CLAMP_CH3, &value);
1518 	value = (value & 0xDF)|0x20;
1519 	afe_write_byte(dev, ADC_PWRDN_CLAMP_CH3, value);
1520 }
1521 
1522 void cx231xx_set_Colibri_For_LowIF(struct cx231xx *dev, u32 if_freq,
1523 		 u8 spectral_invert, u32 mode)
1524 {
1525 	u32 colibri_carrier_offset = 0;
1526 	u32 func_mode = 0x01; /* Device has a DIF if this function is called */
1527 	u32 standard = 0;
1528 	u8 value[4] = { 0, 0, 0, 0 };
1529 
1530 	dev_dbg(dev->dev, "Enter cx231xx_set_Colibri_For_LowIF()\n");
1531 	value[0] = (u8) 0x6F;
1532 	value[1] = (u8) 0x6F;
1533 	value[2] = (u8) 0x6F;
1534 	value[3] = (u8) 0x6F;
1535 	cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
1536 					PWR_CTL_EN, value, 4);
1537 
1538 	/*Set colibri for low IF*/
1539 	cx231xx_afe_set_mode(dev, AFE_MODE_LOW_IF);
1540 
1541 	/* Set C2HH for low IF operation.*/
1542 	standard = dev->norm;
1543 	cx231xx_dif_configure_C2HH_for_low_IF(dev, dev->active_mode,
1544 						       func_mode, standard);
1545 
1546 	/* Get colibri offsets.*/
1547 	colibri_carrier_offset = cx231xx_Get_Colibri_CarrierOffset(mode,
1548 								   standard);
1549 
1550 	dev_dbg(dev->dev, "colibri_carrier_offset=%d, standard=0x%x\n",
1551 		     colibri_carrier_offset, standard);
1552 
1553 	/* Set the band Pass filter for DIF*/
1554 	cx231xx_set_DIF_bandpass(dev, (if_freq+colibri_carrier_offset),
1555 				 spectral_invert, mode);
1556 }
1557 
1558 u32 cx231xx_Get_Colibri_CarrierOffset(u32 mode, u32 standerd)
1559 {
1560 	u32 colibri_carrier_offset = 0;
1561 
1562 	if (mode == TUNER_MODE_FM_RADIO) {
1563 		colibri_carrier_offset = 1100000;
1564 	} else if (standerd & (V4L2_STD_MN | V4L2_STD_NTSC_M_JP)) {
1565 		colibri_carrier_offset = 4832000;  /*4.83MHz	*/
1566 	} else if (standerd & (V4L2_STD_PAL_B | V4L2_STD_PAL_G)) {
1567 		colibri_carrier_offset = 2700000;  /*2.70MHz       */
1568 	} else if (standerd & (V4L2_STD_PAL_D | V4L2_STD_PAL_I
1569 			| V4L2_STD_SECAM)) {
1570 		colibri_carrier_offset = 2100000;  /*2.10MHz	*/
1571 	}
1572 
1573 	return colibri_carrier_offset;
1574 }
1575 
1576 void cx231xx_set_DIF_bandpass(struct cx231xx *dev, u32 if_freq,
1577 		 u8 spectral_invert, u32 mode)
1578 {
1579 	unsigned long pll_freq_word;
1580 	u32 dif_misc_ctrl_value = 0;
1581 	u64 pll_freq_u64 = 0;
1582 	u32 i = 0;
1583 
1584 	dev_dbg(dev->dev, "if_freq=%d;spectral_invert=0x%x;mode=0x%x\n",
1585 		if_freq, spectral_invert, mode);
1586 
1587 
1588 	if (mode == TUNER_MODE_FM_RADIO) {
1589 		pll_freq_word = 0x905A1CAC;
1590 		vid_blk_write_word(dev, DIF_PLL_FREQ_WORD,  pll_freq_word);
1591 
1592 	} else /*KSPROPERTY_TUNER_MODE_TV*/{
1593 		/* Calculate the PLL frequency word based on the adjusted if_freq*/
1594 		pll_freq_word = if_freq;
1595 		pll_freq_u64 = (u64)pll_freq_word << 28L;
1596 		do_div(pll_freq_u64, 50000000);
1597 		pll_freq_word = (u32)pll_freq_u64;
1598 		/*pll_freq_word = 0x3463497;*/
1599 		vid_blk_write_word(dev, DIF_PLL_FREQ_WORD,  pll_freq_word);
1600 
1601 		if (spectral_invert) {
1602 			if_freq -= 400000;
1603 			/* Enable Spectral Invert*/
1604 			vid_blk_read_word(dev, DIF_MISC_CTRL,
1605 					  &dif_misc_ctrl_value);
1606 			dif_misc_ctrl_value = dif_misc_ctrl_value | 0x00200000;
1607 			vid_blk_write_word(dev, DIF_MISC_CTRL,
1608 					  dif_misc_ctrl_value);
1609 		} else {
1610 			if_freq += 400000;
1611 			/* Disable Spectral Invert*/
1612 			vid_blk_read_word(dev, DIF_MISC_CTRL,
1613 					  &dif_misc_ctrl_value);
1614 			dif_misc_ctrl_value = dif_misc_ctrl_value & 0xFFDFFFFF;
1615 			vid_blk_write_word(dev, DIF_MISC_CTRL,
1616 					  dif_misc_ctrl_value);
1617 		}
1618 
1619 		if_freq = (if_freq / 100000) * 100000;
1620 
1621 		if (if_freq < 3000000)
1622 			if_freq = 3000000;
1623 
1624 		if (if_freq > 16000000)
1625 			if_freq = 16000000;
1626 	}
1627 
1628 	dev_dbg(dev->dev, "Enter IF=%zu\n", ARRAY_SIZE(Dif_set_array));
1629 	for (i = 0; i < ARRAY_SIZE(Dif_set_array); i++) {
1630 		if (Dif_set_array[i].if_freq == if_freq) {
1631 			vid_blk_write_word(dev,
1632 			Dif_set_array[i].register_address, Dif_set_array[i].value);
1633 		}
1634 	}
1635 }
1636 
1637 /******************************************************************************
1638  *                 D I F - B L O C K    C O N T R O L   functions             *
1639  ******************************************************************************/
1640 int cx231xx_dif_configure_C2HH_for_low_IF(struct cx231xx *dev, u32 mode,
1641 					  u32 function_mode, u32 standard)
1642 {
1643 	int status = 0;
1644 
1645 
1646 	if (mode == V4L2_TUNER_RADIO) {
1647 		/* C2HH */
1648 		/* lo if big signal */
1649 		status = cx231xx_reg_mask_write(dev,
1650 				VID_BLK_I2C_ADDRESS, 32,
1651 				AFE_CTRL_C2HH_SRC_CTRL, 30, 31, 0x1);
1652 		/* FUNC_MODE = DIF */
1653 		status = cx231xx_reg_mask_write(dev,
1654 				VID_BLK_I2C_ADDRESS, 32,
1655 				AFE_CTRL_C2HH_SRC_CTRL, 23, 24, function_mode);
1656 		/* IF_MODE */
1657 		status = cx231xx_reg_mask_write(dev,
1658 				VID_BLK_I2C_ADDRESS, 32,
1659 				AFE_CTRL_C2HH_SRC_CTRL, 15, 22, 0xFF);
1660 		/* no inv */
1661 		status = cx231xx_reg_mask_write(dev,
1662 				VID_BLK_I2C_ADDRESS, 32,
1663 				AFE_CTRL_C2HH_SRC_CTRL, 9, 9, 0x1);
1664 	} else if (standard != DIF_USE_BASEBAND) {
1665 		if (standard & V4L2_STD_MN) {
1666 			/* lo if big signal */
1667 			status = cx231xx_reg_mask_write(dev,
1668 					VID_BLK_I2C_ADDRESS, 32,
1669 					AFE_CTRL_C2HH_SRC_CTRL, 30, 31, 0x1);
1670 			/* FUNC_MODE = DIF */
1671 			status = cx231xx_reg_mask_write(dev,
1672 					VID_BLK_I2C_ADDRESS, 32,
1673 					AFE_CTRL_C2HH_SRC_CTRL, 23, 24,
1674 					function_mode);
1675 			/* IF_MODE */
1676 			status = cx231xx_reg_mask_write(dev,
1677 					VID_BLK_I2C_ADDRESS, 32,
1678 					AFE_CTRL_C2HH_SRC_CTRL, 15, 22, 0xb);
1679 			/* no inv */
1680 			status = cx231xx_reg_mask_write(dev,
1681 					VID_BLK_I2C_ADDRESS, 32,
1682 					AFE_CTRL_C2HH_SRC_CTRL, 9, 9, 0x1);
1683 			/* 0x124, AUD_CHAN1_SRC = 0x3 */
1684 			status = cx231xx_reg_mask_write(dev,
1685 					VID_BLK_I2C_ADDRESS, 32,
1686 					AUD_IO_CTRL, 0, 31, 0x00000003);
1687 		} else if ((standard == V4L2_STD_PAL_I) |
1688 			(standard & V4L2_STD_PAL_D) |
1689 			(standard & V4L2_STD_SECAM)) {
1690 			/* C2HH setup */
1691 			/* lo if big signal */
1692 			status = cx231xx_reg_mask_write(dev,
1693 					VID_BLK_I2C_ADDRESS, 32,
1694 					AFE_CTRL_C2HH_SRC_CTRL, 30, 31, 0x1);
1695 			/* FUNC_MODE = DIF */
1696 			status = cx231xx_reg_mask_write(dev,
1697 					VID_BLK_I2C_ADDRESS, 32,
1698 					AFE_CTRL_C2HH_SRC_CTRL, 23, 24,
1699 					function_mode);
1700 			/* IF_MODE */
1701 			status = cx231xx_reg_mask_write(dev,
1702 					VID_BLK_I2C_ADDRESS, 32,
1703 					AFE_CTRL_C2HH_SRC_CTRL, 15, 22, 0xF);
1704 			/* no inv */
1705 			status = cx231xx_reg_mask_write(dev,
1706 					VID_BLK_I2C_ADDRESS, 32,
1707 					AFE_CTRL_C2HH_SRC_CTRL, 9, 9, 0x1);
1708 		} else {
1709 			/* default PAL BG */
1710 			/* C2HH setup */
1711 			/* lo if big signal */
1712 			status = cx231xx_reg_mask_write(dev,
1713 					VID_BLK_I2C_ADDRESS, 32,
1714 					AFE_CTRL_C2HH_SRC_CTRL, 30, 31, 0x1);
1715 			/* FUNC_MODE = DIF */
1716 			status = cx231xx_reg_mask_write(dev,
1717 					VID_BLK_I2C_ADDRESS, 32,
1718 					AFE_CTRL_C2HH_SRC_CTRL, 23, 24,
1719 					function_mode);
1720 			/* IF_MODE */
1721 			status = cx231xx_reg_mask_write(dev,
1722 					VID_BLK_I2C_ADDRESS, 32,
1723 					AFE_CTRL_C2HH_SRC_CTRL, 15, 22, 0xE);
1724 			/* no inv */
1725 			status = cx231xx_reg_mask_write(dev,
1726 					VID_BLK_I2C_ADDRESS, 32,
1727 					AFE_CTRL_C2HH_SRC_CTRL, 9, 9, 0x1);
1728 		}
1729 	}
1730 
1731 	return status;
1732 }
1733 
1734 int cx231xx_dif_set_standard(struct cx231xx *dev, u32 standard)
1735 {
1736 	int status = 0;
1737 	u32 dif_misc_ctrl_value = 0;
1738 	u32 func_mode = 0;
1739 
1740 	dev_dbg(dev->dev, "%s: setStandard to %x\n", __func__, standard);
1741 
1742 	status = vid_blk_read_word(dev, DIF_MISC_CTRL, &dif_misc_ctrl_value);
1743 	if (standard != DIF_USE_BASEBAND)
1744 		dev->norm = standard;
1745 
1746 	switch (dev->model) {
1747 	case CX231XX_BOARD_CNXT_CARRAERA:
1748 	case CX231XX_BOARD_CNXT_RDE_250:
1749 	case CX231XX_BOARD_CNXT_SHELBY:
1750 	case CX231XX_BOARD_CNXT_RDU_250:
1751 	case CX231XX_BOARD_CNXT_VIDEO_GRABBER:
1752 	case CX231XX_BOARD_HAUPPAUGE_EXETER:
1753 	case CX231XX_BOARD_OTG102:
1754 		func_mode = 0x03;
1755 		break;
1756 	case CX231XX_BOARD_CNXT_RDE_253S:
1757 	case CX231XX_BOARD_CNXT_RDU_253S:
1758 	case CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL:
1759 	case CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC:
1760 		func_mode = 0x01;
1761 		break;
1762 	default:
1763 		func_mode = 0x01;
1764 	}
1765 
1766 	status = cx231xx_dif_configure_C2HH_for_low_IF(dev, dev->active_mode,
1767 						  func_mode, standard);
1768 
1769 	if (standard == DIF_USE_BASEBAND) {	/* base band */
1770 		/* There is a different SRC_PHASE_INC value
1771 		   for baseband vs. DIF */
1772 		status = vid_blk_write_word(dev, DIF_SRC_PHASE_INC, 0xDF7DF83);
1773 		status = vid_blk_read_word(dev, DIF_MISC_CTRL,
1774 						&dif_misc_ctrl_value);
1775 		dif_misc_ctrl_value |= FLD_DIF_DIF_BYPASS;
1776 		status = vid_blk_write_word(dev, DIF_MISC_CTRL,
1777 						dif_misc_ctrl_value);
1778 	} else if (standard & V4L2_STD_PAL_D) {
1779 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1780 					   DIF_PLL_CTRL, 0, 31, 0x6503bc0c);
1781 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1782 					   DIF_PLL_CTRL1, 0, 31, 0xbd038c85);
1783 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1784 					   DIF_PLL_CTRL2, 0, 31, 0x1db4640a);
1785 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1786 					   DIF_PLL_CTRL3, 0, 31, 0x00008800);
1787 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1788 					   DIF_AGC_IF_REF, 0, 31, 0x444C1380);
1789 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1790 					   DIF_AGC_CTRL_IF, 0, 31, 0xDA302600);
1791 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1792 					   DIF_AGC_CTRL_INT, 0, 31, 0xDA261700);
1793 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1794 					   DIF_AGC_CTRL_RF, 0, 31, 0xDA262600);
1795 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1796 					   DIF_AGC_IF_INT_CURRENT, 0, 31,
1797 					   0x26001700);
1798 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1799 					   DIF_AGC_RF_CURRENT, 0, 31,
1800 					   0x00002660);
1801 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1802 					   DIF_VIDEO_AGC_CTRL, 0, 31,
1803 					   0x72500800);
1804 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1805 					   DIF_VID_AUD_OVERRIDE, 0, 31,
1806 					   0x27000100);
1807 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1808 					   DIF_AV_SEP_CTRL, 0, 31, 0x3F3934EA);
1809 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1810 					   DIF_COMP_FLT_CTRL, 0, 31,
1811 					   0x00000000);
1812 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1813 					   DIF_SRC_PHASE_INC, 0, 31,
1814 					   0x1befbf06);
1815 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1816 					   DIF_SRC_GAIN_CONTROL, 0, 31,
1817 					   0x000035e8);
1818 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1819 					   DIF_RPT_VARIANCE, 0, 31, 0x00000000);
1820 		/* Save the Spec Inversion value */
1821 		dif_misc_ctrl_value &= FLD_DIF_SPEC_INV;
1822 		dif_misc_ctrl_value |= 0x3a023F11;
1823 	} else if (standard & V4L2_STD_PAL_I) {
1824 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1825 					   DIF_PLL_CTRL, 0, 31, 0x6503bc0c);
1826 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1827 					   DIF_PLL_CTRL1, 0, 31, 0xbd038c85);
1828 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1829 					   DIF_PLL_CTRL2, 0, 31, 0x1db4640a);
1830 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1831 					   DIF_PLL_CTRL3, 0, 31, 0x00008800);
1832 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1833 					   DIF_AGC_IF_REF, 0, 31, 0x444C1380);
1834 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1835 					   DIF_AGC_CTRL_IF, 0, 31, 0xDA302600);
1836 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1837 					   DIF_AGC_CTRL_INT, 0, 31, 0xDA261700);
1838 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1839 					   DIF_AGC_CTRL_RF, 0, 31, 0xDA262600);
1840 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1841 					   DIF_AGC_IF_INT_CURRENT, 0, 31,
1842 					   0x26001700);
1843 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1844 					   DIF_AGC_RF_CURRENT, 0, 31,
1845 					   0x00002660);
1846 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1847 					   DIF_VIDEO_AGC_CTRL, 0, 31,
1848 					   0x72500800);
1849 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1850 					   DIF_VID_AUD_OVERRIDE, 0, 31,
1851 					   0x27000100);
1852 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1853 					   DIF_AV_SEP_CTRL, 0, 31, 0x5F39A934);
1854 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1855 					   DIF_COMP_FLT_CTRL, 0, 31,
1856 					   0x00000000);
1857 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1858 					   DIF_SRC_PHASE_INC, 0, 31,
1859 					   0x1befbf06);
1860 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1861 					   DIF_SRC_GAIN_CONTROL, 0, 31,
1862 					   0x000035e8);
1863 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1864 					   DIF_RPT_VARIANCE, 0, 31, 0x00000000);
1865 		/* Save the Spec Inversion value */
1866 		dif_misc_ctrl_value &= FLD_DIF_SPEC_INV;
1867 		dif_misc_ctrl_value |= 0x3a033F11;
1868 	} else if (standard & V4L2_STD_PAL_M) {
1869 		/* improved Low Frequency Phase Noise */
1870 		status = vid_blk_write_word(dev, DIF_PLL_CTRL, 0xFF01FF0C);
1871 		status = vid_blk_write_word(dev, DIF_PLL_CTRL1, 0xbd038c85);
1872 		status = vid_blk_write_word(dev, DIF_PLL_CTRL2, 0x1db4640a);
1873 		status = vid_blk_write_word(dev, DIF_PLL_CTRL3, 0x00008800);
1874 		status = vid_blk_write_word(dev, DIF_AGC_IF_REF, 0x444C1380);
1875 		status = vid_blk_write_word(dev, DIF_AGC_IF_INT_CURRENT,
1876 						0x26001700);
1877 		status = vid_blk_write_word(dev, DIF_AGC_RF_CURRENT,
1878 						0x00002660);
1879 		status = vid_blk_write_word(dev, DIF_VIDEO_AGC_CTRL,
1880 						0x72500800);
1881 		status = vid_blk_write_word(dev, DIF_VID_AUD_OVERRIDE,
1882 						0x27000100);
1883 		status = vid_blk_write_word(dev, DIF_AV_SEP_CTRL, 0x012c405d);
1884 		status = vid_blk_write_word(dev, DIF_COMP_FLT_CTRL,
1885 						0x009f50c1);
1886 		status = vid_blk_write_word(dev, DIF_SRC_PHASE_INC,
1887 						0x1befbf06);
1888 		status = vid_blk_write_word(dev, DIF_SRC_GAIN_CONTROL,
1889 						0x000035e8);
1890 		status = vid_blk_write_word(dev, DIF_SOFT_RST_CTRL_REVB,
1891 						0x00000000);
1892 		/* Save the Spec Inversion value */
1893 		dif_misc_ctrl_value &= FLD_DIF_SPEC_INV;
1894 		dif_misc_ctrl_value |= 0x3A0A3F10;
1895 	} else if (standard & (V4L2_STD_PAL_N | V4L2_STD_PAL_Nc)) {
1896 		/* improved Low Frequency Phase Noise */
1897 		status = vid_blk_write_word(dev, DIF_PLL_CTRL, 0xFF01FF0C);
1898 		status = vid_blk_write_word(dev, DIF_PLL_CTRL1, 0xbd038c85);
1899 		status = vid_blk_write_word(dev, DIF_PLL_CTRL2, 0x1db4640a);
1900 		status = vid_blk_write_word(dev, DIF_PLL_CTRL3, 0x00008800);
1901 		status = vid_blk_write_word(dev, DIF_AGC_IF_REF, 0x444C1380);
1902 		status = vid_blk_write_word(dev, DIF_AGC_IF_INT_CURRENT,
1903 						0x26001700);
1904 		status = vid_blk_write_word(dev, DIF_AGC_RF_CURRENT,
1905 						0x00002660);
1906 		status = vid_blk_write_word(dev, DIF_VIDEO_AGC_CTRL,
1907 						0x72500800);
1908 		status = vid_blk_write_word(dev, DIF_VID_AUD_OVERRIDE,
1909 						0x27000100);
1910 		status = vid_blk_write_word(dev, DIF_AV_SEP_CTRL,
1911 						0x012c405d);
1912 		status = vid_blk_write_word(dev, DIF_COMP_FLT_CTRL,
1913 						0x009f50c1);
1914 		status = vid_blk_write_word(dev, DIF_SRC_PHASE_INC,
1915 						0x1befbf06);
1916 		status = vid_blk_write_word(dev, DIF_SRC_GAIN_CONTROL,
1917 						0x000035e8);
1918 		status = vid_blk_write_word(dev, DIF_SOFT_RST_CTRL_REVB,
1919 						0x00000000);
1920 		/* Save the Spec Inversion value */
1921 		dif_misc_ctrl_value &= FLD_DIF_SPEC_INV;
1922 		dif_misc_ctrl_value = 0x3A093F10;
1923 	} else if (standard &
1924 		  (V4L2_STD_SECAM_B | V4L2_STD_SECAM_D | V4L2_STD_SECAM_G |
1925 		   V4L2_STD_SECAM_K | V4L2_STD_SECAM_K1)) {
1926 
1927 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1928 					   DIF_PLL_CTRL, 0, 31, 0x6503bc0c);
1929 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1930 					   DIF_PLL_CTRL1, 0, 31, 0xbd038c85);
1931 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1932 					   DIF_PLL_CTRL2, 0, 31, 0x1db4640a);
1933 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1934 					   DIF_PLL_CTRL3, 0, 31, 0x00008800);
1935 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1936 					   DIF_AGC_IF_REF, 0, 31, 0x888C0380);
1937 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1938 					   DIF_AGC_CTRL_IF, 0, 31, 0xe0262600);
1939 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1940 					   DIF_AGC_CTRL_INT, 0, 31, 0xc2171700);
1941 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1942 					   DIF_AGC_CTRL_RF, 0, 31, 0xc2262600);
1943 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1944 					   DIF_AGC_IF_INT_CURRENT, 0, 31,
1945 					   0x26001700);
1946 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1947 					   DIF_AGC_RF_CURRENT, 0, 31,
1948 					   0x00002660);
1949 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1950 					   DIF_VID_AUD_OVERRIDE, 0, 31,
1951 					   0x27000100);
1952 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1953 					   DIF_AV_SEP_CTRL, 0, 31, 0x3F3530ec);
1954 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1955 					   DIF_COMP_FLT_CTRL, 0, 31,
1956 					   0x00000000);
1957 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1958 					   DIF_SRC_PHASE_INC, 0, 31,
1959 					   0x1befbf06);
1960 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1961 					   DIF_SRC_GAIN_CONTROL, 0, 31,
1962 					   0x000035e8);
1963 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1964 					   DIF_RPT_VARIANCE, 0, 31, 0x00000000);
1965 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1966 					   DIF_VIDEO_AGC_CTRL, 0, 31,
1967 					   0xf4000000);
1968 
1969 		/* Save the Spec Inversion value */
1970 		dif_misc_ctrl_value &= FLD_DIF_SPEC_INV;
1971 		dif_misc_ctrl_value |= 0x3a023F11;
1972 	} else if (standard & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC)) {
1973 		/* Is it SECAM_L1? */
1974 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1975 					   DIF_PLL_CTRL, 0, 31, 0x6503bc0c);
1976 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1977 					   DIF_PLL_CTRL1, 0, 31, 0xbd038c85);
1978 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1979 					   DIF_PLL_CTRL2, 0, 31, 0x1db4640a);
1980 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1981 					   DIF_PLL_CTRL3, 0, 31, 0x00008800);
1982 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1983 					   DIF_AGC_IF_REF, 0, 31, 0x888C0380);
1984 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1985 					   DIF_AGC_CTRL_IF, 0, 31, 0xe0262600);
1986 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1987 					   DIF_AGC_CTRL_INT, 0, 31, 0xc2171700);
1988 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1989 					   DIF_AGC_CTRL_RF, 0, 31, 0xc2262600);
1990 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1991 					   DIF_AGC_IF_INT_CURRENT, 0, 31,
1992 					   0x26001700);
1993 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1994 					   DIF_AGC_RF_CURRENT, 0, 31,
1995 					   0x00002660);
1996 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
1997 					   DIF_VID_AUD_OVERRIDE, 0, 31,
1998 					   0x27000100);
1999 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2000 					   DIF_AV_SEP_CTRL, 0, 31, 0x3F3530ec);
2001 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2002 					   DIF_COMP_FLT_CTRL, 0, 31,
2003 					   0x00000000);
2004 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2005 					   DIF_SRC_PHASE_INC, 0, 31,
2006 					   0x1befbf06);
2007 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2008 					   DIF_SRC_GAIN_CONTROL, 0, 31,
2009 					   0x000035e8);
2010 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2011 					   DIF_RPT_VARIANCE, 0, 31, 0x00000000);
2012 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2013 					   DIF_VIDEO_AGC_CTRL, 0, 31,
2014 					   0xf2560000);
2015 
2016 		/* Save the Spec Inversion value */
2017 		dif_misc_ctrl_value &= FLD_DIF_SPEC_INV;
2018 		dif_misc_ctrl_value |= 0x3a023F11;
2019 
2020 	} else if (standard & V4L2_STD_NTSC_M) {
2021 		/* V4L2_STD_NTSC_M (75 IRE Setup) Or
2022 		   V4L2_STD_NTSC_M_JP (Japan,  0 IRE Setup) */
2023 
2024 		/* For NTSC the centre frequency of video coming out of
2025 		   sidewinder is around 7.1MHz or 3.6MHz depending on the
2026 		   spectral inversion. so for a non spectrally inverted channel
2027 		   the pll freq word is 0x03420c49
2028 		 */
2029 
2030 		status = vid_blk_write_word(dev, DIF_PLL_CTRL, 0x6503BC0C);
2031 		status = vid_blk_write_word(dev, DIF_PLL_CTRL1, 0xBD038C85);
2032 		status = vid_blk_write_word(dev, DIF_PLL_CTRL2, 0x1DB4640A);
2033 		status = vid_blk_write_word(dev, DIF_PLL_CTRL3, 0x00008800);
2034 		status = vid_blk_write_word(dev, DIF_AGC_IF_REF, 0x444C0380);
2035 		status = vid_blk_write_word(dev, DIF_AGC_IF_INT_CURRENT,
2036 						0x26001700);
2037 		status = vid_blk_write_word(dev, DIF_AGC_RF_CURRENT,
2038 						0x00002660);
2039 		status = vid_blk_write_word(dev, DIF_VIDEO_AGC_CTRL,
2040 						0x04000800);
2041 		status = vid_blk_write_word(dev, DIF_VID_AUD_OVERRIDE,
2042 						0x27000100);
2043 		status = vid_blk_write_word(dev, DIF_AV_SEP_CTRL, 0x01296e1f);
2044 
2045 		status = vid_blk_write_word(dev, DIF_COMP_FLT_CTRL,
2046 						0x009f50c1);
2047 		status = vid_blk_write_word(dev, DIF_SRC_PHASE_INC,
2048 						0x1befbf06);
2049 		status = vid_blk_write_word(dev, DIF_SRC_GAIN_CONTROL,
2050 						0x000035e8);
2051 
2052 		status = vid_blk_write_word(dev, DIF_AGC_CTRL_IF, 0xC2262600);
2053 		status = vid_blk_write_word(dev, DIF_AGC_CTRL_INT,
2054 						0xC2262600);
2055 		status = vid_blk_write_word(dev, DIF_AGC_CTRL_RF, 0xC2262600);
2056 
2057 		/* Save the Spec Inversion value */
2058 		dif_misc_ctrl_value &= FLD_DIF_SPEC_INV;
2059 		dif_misc_ctrl_value |= 0x3a003F10;
2060 	} else {
2061 		/* default PAL BG */
2062 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2063 					   DIF_PLL_CTRL, 0, 31, 0x6503bc0c);
2064 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2065 					   DIF_PLL_CTRL1, 0, 31, 0xbd038c85);
2066 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2067 					   DIF_PLL_CTRL2, 0, 31, 0x1db4640a);
2068 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2069 					   DIF_PLL_CTRL3, 0, 31, 0x00008800);
2070 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2071 					   DIF_AGC_IF_REF, 0, 31, 0x444C1380);
2072 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2073 					   DIF_AGC_CTRL_IF, 0, 31, 0xDA302600);
2074 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2075 					   DIF_AGC_CTRL_INT, 0, 31, 0xDA261700);
2076 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2077 					   DIF_AGC_CTRL_RF, 0, 31, 0xDA262600);
2078 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2079 					   DIF_AGC_IF_INT_CURRENT, 0, 31,
2080 					   0x26001700);
2081 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2082 					   DIF_AGC_RF_CURRENT, 0, 31,
2083 					   0x00002660);
2084 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2085 					   DIF_VIDEO_AGC_CTRL, 0, 31,
2086 					   0x72500800);
2087 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2088 					   DIF_VID_AUD_OVERRIDE, 0, 31,
2089 					   0x27000100);
2090 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2091 					   DIF_AV_SEP_CTRL, 0, 31, 0x3F3530EC);
2092 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2093 					   DIF_COMP_FLT_CTRL, 0, 31,
2094 					   0x00A653A8);
2095 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2096 					   DIF_SRC_PHASE_INC, 0, 31,
2097 					   0x1befbf06);
2098 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2099 					   DIF_SRC_GAIN_CONTROL, 0, 31,
2100 					   0x000035e8);
2101 		status = cx231xx_reg_mask_write(dev, VID_BLK_I2C_ADDRESS, 32,
2102 					   DIF_RPT_VARIANCE, 0, 31, 0x00000000);
2103 		/* Save the Spec Inversion value */
2104 		dif_misc_ctrl_value &= FLD_DIF_SPEC_INV;
2105 		dif_misc_ctrl_value |= 0x3a013F11;
2106 	}
2107 
2108 	/* The AGC values should be the same for all standards,
2109 	   AUD_SRC_SEL[19] should always be disabled    */
2110 	dif_misc_ctrl_value &= ~FLD_DIF_AUD_SRC_SEL;
2111 
2112 	/* It is still possible to get Set Standard calls even when we
2113 	   are in FM mode.
2114 	   This is done to override the value for FM. */
2115 	if (dev->active_mode == V4L2_TUNER_RADIO)
2116 		dif_misc_ctrl_value = 0x7a080000;
2117 
2118 	/* Write the calculated value for misc ontrol register      */
2119 	status = vid_blk_write_word(dev, DIF_MISC_CTRL, dif_misc_ctrl_value);
2120 
2121 	return status;
2122 }
2123 
2124 int cx231xx_tuner_pre_channel_change(struct cx231xx *dev)
2125 {
2126 	int status = 0;
2127 	u32 dwval;
2128 
2129 	/* Set the RF and IF k_agc values to 3 */
2130 	status = vid_blk_read_word(dev, DIF_AGC_IF_REF, &dwval);
2131 	dwval &= ~(FLD_DIF_K_AGC_RF | FLD_DIF_K_AGC_IF);
2132 	dwval |= 0x33000000;
2133 
2134 	status = vid_blk_write_word(dev, DIF_AGC_IF_REF, dwval);
2135 
2136 	return status;
2137 }
2138 
2139 int cx231xx_tuner_post_channel_change(struct cx231xx *dev)
2140 {
2141 	int status = 0;
2142 	u32 dwval;
2143 	dev_dbg(dev->dev, "%s: dev->tuner_type =0%d\n",
2144 		__func__, dev->tuner_type);
2145 	/* Set the RF and IF k_agc values to 4 for PAL/NTSC and 8 for
2146 	 * SECAM L/B/D standards */
2147 	status = vid_blk_read_word(dev, DIF_AGC_IF_REF, &dwval);
2148 	dwval &= ~(FLD_DIF_K_AGC_RF | FLD_DIF_K_AGC_IF);
2149 
2150 	if (dev->norm & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_B |
2151 			 V4L2_STD_SECAM_D)) {
2152 			if (dev->tuner_type == TUNER_NXP_TDA18271) {
2153 				dwval &= ~FLD_DIF_IF_REF;
2154 				dwval |= 0x88000300;
2155 			} else
2156 				dwval |= 0x88000000;
2157 		} else {
2158 			if (dev->tuner_type == TUNER_NXP_TDA18271) {
2159 				dwval &= ~FLD_DIF_IF_REF;
2160 				dwval |= 0xCC000300;
2161 			} else
2162 				dwval |= 0x44000000;
2163 		}
2164 
2165 	status = vid_blk_write_word(dev, DIF_AGC_IF_REF, dwval);
2166 
2167 	return status == sizeof(dwval) ? 0 : -EIO;
2168 }
2169 
2170 /******************************************************************************
2171  *        	    I 2 S - B L O C K    C O N T R O L   functions            *
2172  ******************************************************************************/
2173 int cx231xx_i2s_blk_initialize(struct cx231xx *dev)
2174 {
2175 	int status = 0;
2176 	u32 value;
2177 
2178 	status = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
2179 				       CH_PWR_CTRL1, 1, &value, 1);
2180 	/* enables clock to delta-sigma and decimation filter */
2181 	value |= 0x80;
2182 	status = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
2183 					CH_PWR_CTRL1, 1, value, 1);
2184 	/* power up all channel */
2185 	status = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
2186 					CH_PWR_CTRL2, 1, 0x00, 1);
2187 
2188 	return status;
2189 }
2190 
2191 int cx231xx_i2s_blk_update_power_control(struct cx231xx *dev,
2192 					enum AV_MODE avmode)
2193 {
2194 	int status = 0;
2195 	u32 value = 0;
2196 
2197 	if (avmode != POLARIS_AVMODE_ENXTERNAL_AV) {
2198 		status = cx231xx_read_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
2199 					  CH_PWR_CTRL2, 1, &value, 1);
2200 		value |= 0xfe;
2201 		status = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
2202 						CH_PWR_CTRL2, 1, value, 1);
2203 	} else {
2204 		status = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
2205 						CH_PWR_CTRL2, 1, 0x00, 1);
2206 	}
2207 
2208 	return status;
2209 }
2210 
2211 /* set i2s_blk for audio input types */
2212 int cx231xx_i2s_blk_set_audio_input(struct cx231xx *dev, u8 audio_input)
2213 {
2214 	int status = 0;
2215 
2216 	switch (audio_input) {
2217 	case CX231XX_AMUX_LINE_IN:
2218 		status = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
2219 						CH_PWR_CTRL2, 1, 0x00, 1);
2220 		status = cx231xx_write_i2c_data(dev, I2S_BLK_DEVICE_ADDRESS,
2221 						CH_PWR_CTRL1, 1, 0x80, 1);
2222 		break;
2223 	case CX231XX_AMUX_VIDEO:
2224 	default:
2225 		break;
2226 	}
2227 
2228 	dev->ctl_ainput = audio_input;
2229 
2230 	return status;
2231 }
2232 
2233 /******************************************************************************
2234  *                  P O W E R      C O N T R O L   functions                  *
2235  ******************************************************************************/
2236 int cx231xx_set_power_mode(struct cx231xx *dev, enum AV_MODE mode)
2237 {
2238 	u8 value[4] = { 0, 0, 0, 0 };
2239 	u32 tmp = 0;
2240 	int status = 0;
2241 
2242 	if (dev->power_mode != mode)
2243 		dev->power_mode = mode;
2244 	else {
2245 		dev_dbg(dev->dev, "%s: mode = %d, No Change req.\n",
2246 			 __func__, mode);
2247 		return 0;
2248 	}
2249 
2250 	status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN, value,
2251 				       4);
2252 	if (status < 0)
2253 		return status;
2254 
2255 	tmp = le32_to_cpu(*((__le32 *) value));
2256 
2257 	switch (mode) {
2258 	case POLARIS_AVMODE_ENXTERNAL_AV:
2259 
2260 		tmp &= (~PWR_MODE_MASK);
2261 
2262 		tmp |= PWR_AV_EN;
2263 		value[0] = (u8) tmp;
2264 		value[1] = (u8) (tmp >> 8);
2265 		value[2] = (u8) (tmp >> 16);
2266 		value[3] = (u8) (tmp >> 24);
2267 		status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
2268 						PWR_CTL_EN, value, 4);
2269 		msleep(PWR_SLEEP_INTERVAL);
2270 
2271 		tmp |= PWR_ISO_EN;
2272 		value[0] = (u8) tmp;
2273 		value[1] = (u8) (tmp >> 8);
2274 		value[2] = (u8) (tmp >> 16);
2275 		value[3] = (u8) (tmp >> 24);
2276 		status =
2277 		    cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, PWR_CTL_EN,
2278 					   value, 4);
2279 		msleep(PWR_SLEEP_INTERVAL);
2280 
2281 		tmp |= POLARIS_AVMODE_ENXTERNAL_AV;
2282 		value[0] = (u8) tmp;
2283 		value[1] = (u8) (tmp >> 8);
2284 		value[2] = (u8) (tmp >> 16);
2285 		value[3] = (u8) (tmp >> 24);
2286 		status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
2287 						PWR_CTL_EN, value, 4);
2288 
2289 		/* reset state of xceive tuner */
2290 		dev->xc_fw_load_done = 0;
2291 		break;
2292 
2293 	case POLARIS_AVMODE_ANALOGT_TV:
2294 
2295 		tmp |= PWR_DEMOD_EN;
2296 		value[0] = (u8) tmp;
2297 		value[1] = (u8) (tmp >> 8);
2298 		value[2] = (u8) (tmp >> 16);
2299 		value[3] = (u8) (tmp >> 24);
2300 		status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
2301 						PWR_CTL_EN, value, 4);
2302 		msleep(PWR_SLEEP_INTERVAL);
2303 
2304 		if (!(tmp & PWR_TUNER_EN)) {
2305 			tmp |= (PWR_TUNER_EN);
2306 			value[0] = (u8) tmp;
2307 			value[1] = (u8) (tmp >> 8);
2308 			value[2] = (u8) (tmp >> 16);
2309 			value[3] = (u8) (tmp >> 24);
2310 			status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
2311 							PWR_CTL_EN, value, 4);
2312 			msleep(PWR_SLEEP_INTERVAL);
2313 		}
2314 
2315 		if (!(tmp & PWR_AV_EN)) {
2316 			tmp |= PWR_AV_EN;
2317 			value[0] = (u8) tmp;
2318 			value[1] = (u8) (tmp >> 8);
2319 			value[2] = (u8) (tmp >> 16);
2320 			value[3] = (u8) (tmp >> 24);
2321 			status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
2322 							PWR_CTL_EN, value, 4);
2323 			msleep(PWR_SLEEP_INTERVAL);
2324 		}
2325 		if (!(tmp & PWR_ISO_EN)) {
2326 			tmp |= PWR_ISO_EN;
2327 			value[0] = (u8) tmp;
2328 			value[1] = (u8) (tmp >> 8);
2329 			value[2] = (u8) (tmp >> 16);
2330 			value[3] = (u8) (tmp >> 24);
2331 			status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
2332 							PWR_CTL_EN, value, 4);
2333 			msleep(PWR_SLEEP_INTERVAL);
2334 		}
2335 
2336 		if (!(tmp & POLARIS_AVMODE_ANALOGT_TV)) {
2337 			tmp |= POLARIS_AVMODE_ANALOGT_TV;
2338 			value[0] = (u8) tmp;
2339 			value[1] = (u8) (tmp >> 8);
2340 			value[2] = (u8) (tmp >> 16);
2341 			value[3] = (u8) (tmp >> 24);
2342 			status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
2343 							PWR_CTL_EN, value, 4);
2344 			msleep(PWR_SLEEP_INTERVAL);
2345 		}
2346 
2347 		if (dev->board.tuner_type != TUNER_ABSENT) {
2348 			/* reset the Tuner */
2349 			if (dev->board.tuner_gpio)
2350 				cx231xx_gpio_set(dev, dev->board.tuner_gpio);
2351 
2352 			if (dev->cx231xx_reset_analog_tuner)
2353 				dev->cx231xx_reset_analog_tuner(dev);
2354 		}
2355 
2356 		break;
2357 
2358 	case POLARIS_AVMODE_DIGITAL:
2359 		if (!(tmp & PWR_TUNER_EN)) {
2360 			tmp |= (PWR_TUNER_EN);
2361 			value[0] = (u8) tmp;
2362 			value[1] = (u8) (tmp >> 8);
2363 			value[2] = (u8) (tmp >> 16);
2364 			value[3] = (u8) (tmp >> 24);
2365 			status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
2366 							PWR_CTL_EN, value, 4);
2367 			msleep(PWR_SLEEP_INTERVAL);
2368 		}
2369 		if (!(tmp & PWR_AV_EN)) {
2370 			tmp |= PWR_AV_EN;
2371 			value[0] = (u8) tmp;
2372 			value[1] = (u8) (tmp >> 8);
2373 			value[2] = (u8) (tmp >> 16);
2374 			value[3] = (u8) (tmp >> 24);
2375 			status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
2376 							PWR_CTL_EN, value, 4);
2377 			msleep(PWR_SLEEP_INTERVAL);
2378 		}
2379 		if (!(tmp & PWR_ISO_EN)) {
2380 			tmp |= PWR_ISO_EN;
2381 			value[0] = (u8) tmp;
2382 			value[1] = (u8) (tmp >> 8);
2383 			value[2] = (u8) (tmp >> 16);
2384 			value[3] = (u8) (tmp >> 24);
2385 			status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
2386 							PWR_CTL_EN, value, 4);
2387 			msleep(PWR_SLEEP_INTERVAL);
2388 		}
2389 
2390 		tmp &= (~PWR_AV_MODE);
2391 		tmp |= POLARIS_AVMODE_DIGITAL;
2392 		value[0] = (u8) tmp;
2393 		value[1] = (u8) (tmp >> 8);
2394 		value[2] = (u8) (tmp >> 16);
2395 		value[3] = (u8) (tmp >> 24);
2396 		status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
2397 						PWR_CTL_EN, value, 4);
2398 		msleep(PWR_SLEEP_INTERVAL);
2399 
2400 		if (!(tmp & PWR_DEMOD_EN)) {
2401 			tmp |= PWR_DEMOD_EN;
2402 			value[0] = (u8) tmp;
2403 			value[1] = (u8) (tmp >> 8);
2404 			value[2] = (u8) (tmp >> 16);
2405 			value[3] = (u8) (tmp >> 24);
2406 			status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
2407 							PWR_CTL_EN, value, 4);
2408 			msleep(PWR_SLEEP_INTERVAL);
2409 		}
2410 
2411 		if (dev->board.tuner_type != TUNER_ABSENT) {
2412 			/* reset the Tuner */
2413 			if (dev->board.tuner_gpio)
2414 				cx231xx_gpio_set(dev, dev->board.tuner_gpio);
2415 
2416 			if (dev->cx231xx_reset_analog_tuner)
2417 				dev->cx231xx_reset_analog_tuner(dev);
2418 		}
2419 		break;
2420 
2421 	default:
2422 		break;
2423 	}
2424 
2425 	msleep(PWR_SLEEP_INTERVAL);
2426 
2427 	/* For power saving, only enable Pwr_resetout_n
2428 	   when digital TV is selected. */
2429 	if (mode == POLARIS_AVMODE_DIGITAL) {
2430 		tmp |= PWR_RESETOUT_EN;
2431 		value[0] = (u8) tmp;
2432 		value[1] = (u8) (tmp >> 8);
2433 		value[2] = (u8) (tmp >> 16);
2434 		value[3] = (u8) (tmp >> 24);
2435 		status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER,
2436 						PWR_CTL_EN, value, 4);
2437 		msleep(PWR_SLEEP_INTERVAL);
2438 	}
2439 
2440 	/* update power control for afe */
2441 	status = cx231xx_afe_update_power_control(dev, mode);
2442 
2443 	/* update power control for i2s_blk */
2444 	status = cx231xx_i2s_blk_update_power_control(dev, mode);
2445 
2446 	status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN, value,
2447 				       4);
2448 
2449 	return status;
2450 }
2451 
2452 int cx231xx_power_suspend(struct cx231xx *dev)
2453 {
2454 	u8 value[4] = { 0, 0, 0, 0 };
2455 	u32 tmp = 0;
2456 	int status = 0;
2457 
2458 	status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN,
2459 				       value, 4);
2460 	if (status > 0)
2461 		return status;
2462 
2463 	tmp = le32_to_cpu(*((__le32 *) value));
2464 	tmp &= (~PWR_MODE_MASK);
2465 
2466 	value[0] = (u8) tmp;
2467 	value[1] = (u8) (tmp >> 8);
2468 	value[2] = (u8) (tmp >> 16);
2469 	value[3] = (u8) (tmp >> 24);
2470 	status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, PWR_CTL_EN,
2471 					value, 4);
2472 
2473 	return status;
2474 }
2475 
2476 /******************************************************************************
2477  *                  S T R E A M    C O N T R O L   functions                  *
2478  ******************************************************************************/
2479 int cx231xx_start_stream(struct cx231xx *dev, u32 ep_mask)
2480 {
2481 	u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
2482 	u32 tmp = 0;
2483 	int status = 0;
2484 
2485 	dev_dbg(dev->dev, "%s: ep_mask = %x\n", __func__, ep_mask);
2486 	status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, EP_MODE_SET,
2487 				       value, 4);
2488 	if (status < 0)
2489 		return status;
2490 
2491 	tmp = le32_to_cpu(*((__le32 *) value));
2492 	tmp |= ep_mask;
2493 	value[0] = (u8) tmp;
2494 	value[1] = (u8) (tmp >> 8);
2495 	value[2] = (u8) (tmp >> 16);
2496 	value[3] = (u8) (tmp >> 24);
2497 
2498 	status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, EP_MODE_SET,
2499 					value, 4);
2500 
2501 	return status;
2502 }
2503 
2504 int cx231xx_stop_stream(struct cx231xx *dev, u32 ep_mask)
2505 {
2506 	u8 value[4] = { 0x0, 0x0, 0x0, 0x0 };
2507 	u32 tmp = 0;
2508 	int status = 0;
2509 
2510 	dev_dbg(dev->dev, "%s: ep_mask = %x\n", __func__, ep_mask);
2511 	status =
2512 	    cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, EP_MODE_SET, value, 4);
2513 	if (status < 0)
2514 		return status;
2515 
2516 	tmp = le32_to_cpu(*((__le32 *) value));
2517 	tmp &= (~ep_mask);
2518 	value[0] = (u8) tmp;
2519 	value[1] = (u8) (tmp >> 8);
2520 	value[2] = (u8) (tmp >> 16);
2521 	value[3] = (u8) (tmp >> 24);
2522 
2523 	status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, EP_MODE_SET,
2524 					value, 4);
2525 
2526 	return status;
2527 }
2528 
2529 int cx231xx_initialize_stream_xfer(struct cx231xx *dev, u32 media_type)
2530 {
2531 	int status = 0;
2532 	u32 value = 0;
2533 	u8 val[4] = { 0, 0, 0, 0 };
2534 
2535 	if (dev->udev->speed == USB_SPEED_HIGH) {
2536 		switch (media_type) {
2537 		case Audio:
2538 			dev_dbg(dev->dev,
2539 				"%s: Audio enter HANC\n", __func__);
2540 			status =
2541 			    cx231xx_mode_register(dev, TS_MODE_REG, 0x9300);
2542 			break;
2543 
2544 		case Vbi:
2545 			dev_dbg(dev->dev,
2546 				"%s: set vanc registers\n", __func__);
2547 			status = cx231xx_mode_register(dev, TS_MODE_REG, 0x300);
2548 			break;
2549 
2550 		case Sliced_cc:
2551 			dev_dbg(dev->dev,
2552 				"%s: set hanc registers\n", __func__);
2553 			status =
2554 			    cx231xx_mode_register(dev, TS_MODE_REG, 0x1300);
2555 			break;
2556 
2557 		case Raw_Video:
2558 			dev_dbg(dev->dev,
2559 				"%s: set video registers\n", __func__);
2560 			status = cx231xx_mode_register(dev, TS_MODE_REG, 0x100);
2561 			break;
2562 
2563 		case TS1_serial_mode:
2564 			dev_dbg(dev->dev,
2565 				"%s: set ts1 registers", __func__);
2566 
2567 			if (dev->board.has_417) {
2568 				dev_dbg(dev->dev,
2569 					"%s: MPEG\n", __func__);
2570 				value &= 0xFFFFFFFC;
2571 				value |= 0x3;
2572 
2573 				status = cx231xx_mode_register(dev,
2574 							 TS_MODE_REG, value);
2575 
2576 				val[0] = 0x04;
2577 				val[1] = 0xA3;
2578 				val[2] = 0x3B;
2579 				val[3] = 0x00;
2580 				status = cx231xx_write_ctrl_reg(dev,
2581 							VRT_SET_REGISTER,
2582 							TS1_CFG_REG, val, 4);
2583 
2584 				val[0] = 0x00;
2585 				val[1] = 0x08;
2586 				val[2] = 0x00;
2587 				val[3] = 0x08;
2588 				status = cx231xx_write_ctrl_reg(dev,
2589 							VRT_SET_REGISTER,
2590 							TS1_LENGTH_REG, val, 4);
2591 			} else {
2592 				dev_dbg(dev->dev, "%s: BDA\n", __func__);
2593 				status = cx231xx_mode_register(dev,
2594 							 TS_MODE_REG, 0x101);
2595 				status = cx231xx_mode_register(dev,
2596 							TS1_CFG_REG, 0x010);
2597 			}
2598 			break;
2599 
2600 		case TS1_parallel_mode:
2601 			dev_dbg(dev->dev,
2602 				"%s: set ts1 parallel mode registers\n",
2603 				__func__);
2604 			status = cx231xx_mode_register(dev, TS_MODE_REG, 0x100);
2605 			status = cx231xx_mode_register(dev, TS1_CFG_REG, 0x400);
2606 			break;
2607 		}
2608 	} else {
2609 		status = cx231xx_mode_register(dev, TS_MODE_REG, 0x101);
2610 	}
2611 
2612 	return status;
2613 }
2614 
2615 int cx231xx_capture_start(struct cx231xx *dev, int start, u8 media_type)
2616 {
2617 	int rc = -1;
2618 	u32 ep_mask = -1;
2619 	struct pcb_config *pcb_config;
2620 
2621 	/* get EP for media type */
2622 	pcb_config = (struct pcb_config *)&dev->current_pcb_config;
2623 
2624 	if (pcb_config->config_num) {
2625 		switch (media_type) {
2626 		case Raw_Video:
2627 			ep_mask = ENABLE_EP4;	/* ep4  [00:1000] */
2628 			break;
2629 		case Audio:
2630 			ep_mask = ENABLE_EP3;	/* ep3  [00:0100] */
2631 			break;
2632 		case Vbi:
2633 			ep_mask = ENABLE_EP5;	/* ep5 [01:0000] */
2634 			break;
2635 		case Sliced_cc:
2636 			ep_mask = ENABLE_EP6;	/* ep6 [10:0000] */
2637 			break;
2638 		case TS1_serial_mode:
2639 		case TS1_parallel_mode:
2640 			ep_mask = ENABLE_EP1;	/* ep1 [00:0001] */
2641 			break;
2642 		case TS2:
2643 			ep_mask = ENABLE_EP2;	/* ep2 [00:0010] */
2644 			break;
2645 		}
2646 	}
2647 
2648 	if (start) {
2649 		rc = cx231xx_initialize_stream_xfer(dev, media_type);
2650 
2651 		if (rc < 0)
2652 			return rc;
2653 
2654 		/* enable video capture */
2655 		if (ep_mask > 0)
2656 			rc = cx231xx_start_stream(dev, ep_mask);
2657 	} else {
2658 		/* disable video capture */
2659 		if (ep_mask > 0)
2660 			rc = cx231xx_stop_stream(dev, ep_mask);
2661 	}
2662 
2663 	return rc;
2664 }
2665 EXPORT_SYMBOL_GPL(cx231xx_capture_start);
2666 
2667 /*****************************************************************************
2668 *                   G P I O   B I T control functions                        *
2669 ******************************************************************************/
2670 static int cx231xx_set_gpio_bit(struct cx231xx *dev, u32 gpio_bit, u32 gpio_val)
2671 {
2672 	int status = 0;
2673 
2674 	gpio_val = (__force u32)cpu_to_le32(gpio_val);
2675 	status = cx231xx_send_gpio_cmd(dev, gpio_bit, (u8 *)&gpio_val, 4, 0, 0);
2676 
2677 	return status;
2678 }
2679 
2680 static int cx231xx_get_gpio_bit(struct cx231xx *dev, u32 gpio_bit, u32 *gpio_val)
2681 {
2682 	__le32 tmp;
2683 	int status = 0;
2684 
2685 	status = cx231xx_send_gpio_cmd(dev, gpio_bit, (u8 *)&tmp, 4, 0, 1);
2686 	*gpio_val = le32_to_cpu(tmp);
2687 
2688 	return status;
2689 }
2690 
2691 /*
2692 * cx231xx_set_gpio_direction
2693 *      Sets the direction of the GPIO pin to input or output
2694 *
2695 * Parameters :
2696 *      pin_number : The GPIO Pin number to program the direction for
2697 *                   from 0 to 31
2698 *      pin_value : The Direction of the GPIO Pin under reference.
2699 *                      0 = Input direction
2700 *                      1 = Output direction
2701 */
2702 int cx231xx_set_gpio_direction(struct cx231xx *dev,
2703 			       int pin_number, int pin_value)
2704 {
2705 	int status = 0;
2706 	u32 value = 0;
2707 
2708 	/* Check for valid pin_number - if 32 , bail out */
2709 	if (pin_number >= 32)
2710 		return -EINVAL;
2711 
2712 	/* input */
2713 	if (pin_value == 0)
2714 		value = dev->gpio_dir & (~(1 << pin_number));	/* clear */
2715 	else
2716 		value = dev->gpio_dir | (1 << pin_number);
2717 
2718 	status = cx231xx_set_gpio_bit(dev, value, dev->gpio_val);
2719 
2720 	/* cache the value for future */
2721 	dev->gpio_dir = value;
2722 
2723 	return status;
2724 }
2725 
2726 /*
2727 * cx231xx_set_gpio_value
2728 *      Sets the value of the GPIO pin to Logic high or low. The Pin under
2729 *      reference should ALREADY BE SET IN OUTPUT MODE !!!!!!!!!
2730 *
2731 * Parameters :
2732 *      pin_number : The GPIO Pin number to program the direction for
2733 *      pin_value : The value of the GPIO Pin under reference.
2734 *                      0 = set it to 0
2735 *                      1 = set it to 1
2736 */
2737 int cx231xx_set_gpio_value(struct cx231xx *dev, int pin_number, int pin_value)
2738 {
2739 	int status = 0;
2740 	u32 value = 0;
2741 
2742 	/* Check for valid pin_number - if 0xFF , bail out */
2743 	if (pin_number >= 32)
2744 		return -EINVAL;
2745 
2746 	/* first do a sanity check - if the Pin is not output, make it output */
2747 	if ((dev->gpio_dir & (1 << pin_number)) == 0x00) {
2748 		/* It was in input mode */
2749 		value = dev->gpio_dir | (1 << pin_number);
2750 		dev->gpio_dir = value;
2751 		status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
2752 					      dev->gpio_val);
2753 		value = 0;
2754 	}
2755 
2756 	if (pin_value == 0)
2757 		value = dev->gpio_val & (~(1 << pin_number));
2758 	else
2759 		value = dev->gpio_val | (1 << pin_number);
2760 
2761 	/* store the value */
2762 	dev->gpio_val = value;
2763 
2764 	/* toggle bit0 of GP_IO */
2765 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
2766 
2767 	return status;
2768 }
2769 
2770 /*****************************************************************************
2771 *                      G P I O I2C related functions                         *
2772 ******************************************************************************/
2773 int cx231xx_gpio_i2c_start(struct cx231xx *dev)
2774 {
2775 	int status = 0;
2776 
2777 	/* set SCL to output 1 ; set SDA to output 1 */
2778 	dev->gpio_dir |= 1 << dev->board.tuner_scl_gpio;
2779 	dev->gpio_dir |= 1 << dev->board.tuner_sda_gpio;
2780 	dev->gpio_val |= 1 << dev->board.tuner_scl_gpio;
2781 	dev->gpio_val |= 1 << dev->board.tuner_sda_gpio;
2782 
2783 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
2784 	if (status < 0)
2785 		return -EINVAL;
2786 
2787 	/* set SCL to output 1; set SDA to output 0 */
2788 	dev->gpio_val |= 1 << dev->board.tuner_scl_gpio;
2789 	dev->gpio_val &= ~(1 << dev->board.tuner_sda_gpio);
2790 
2791 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
2792 	if (status < 0)
2793 		return -EINVAL;
2794 
2795 	/* set SCL to output 0; set SDA to output 0      */
2796 	dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
2797 	dev->gpio_val &= ~(1 << dev->board.tuner_sda_gpio);
2798 
2799 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
2800 	if (status < 0)
2801 		return -EINVAL;
2802 
2803 	return status;
2804 }
2805 
2806 int cx231xx_gpio_i2c_end(struct cx231xx *dev)
2807 {
2808 	int status = 0;
2809 
2810 	/* set SCL to output 0; set SDA to output 0      */
2811 	dev->gpio_dir |= 1 << dev->board.tuner_scl_gpio;
2812 	dev->gpio_dir |= 1 << dev->board.tuner_sda_gpio;
2813 
2814 	dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
2815 	dev->gpio_val &= ~(1 << dev->board.tuner_sda_gpio);
2816 
2817 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
2818 	if (status < 0)
2819 		return -EINVAL;
2820 
2821 	/* set SCL to output 1; set SDA to output 0      */
2822 	dev->gpio_val |= 1 << dev->board.tuner_scl_gpio;
2823 	dev->gpio_val &= ~(1 << dev->board.tuner_sda_gpio);
2824 
2825 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
2826 	if (status < 0)
2827 		return -EINVAL;
2828 
2829 	/* set SCL to input ,release SCL cable control
2830 	   set SDA to input ,release SDA cable control */
2831 	dev->gpio_dir &= ~(1 << dev->board.tuner_scl_gpio);
2832 	dev->gpio_dir &= ~(1 << dev->board.tuner_sda_gpio);
2833 
2834 	status =
2835 	    cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
2836 	if (status < 0)
2837 		return -EINVAL;
2838 
2839 	return status;
2840 }
2841 
2842 int cx231xx_gpio_i2c_write_byte(struct cx231xx *dev, u8 data)
2843 {
2844 	int status = 0;
2845 	u8 i;
2846 
2847 	/* set SCL to output ; set SDA to output */
2848 	dev->gpio_dir |= 1 << dev->board.tuner_scl_gpio;
2849 	dev->gpio_dir |= 1 << dev->board.tuner_sda_gpio;
2850 
2851 	for (i = 0; i < 8; i++) {
2852 		if (((data << i) & 0x80) == 0) {
2853 			/* set SCL to output 0; set SDA to output 0     */
2854 			dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
2855 			dev->gpio_val &= ~(1 << dev->board.tuner_sda_gpio);
2856 			status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
2857 						      dev->gpio_val);
2858 
2859 			/* set SCL to output 1; set SDA to output 0     */
2860 			dev->gpio_val |= 1 << dev->board.tuner_scl_gpio;
2861 			status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
2862 						      dev->gpio_val);
2863 
2864 			/* set SCL to output 0; set SDA to output 0     */
2865 			dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
2866 			status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
2867 						      dev->gpio_val);
2868 		} else {
2869 			/* set SCL to output 0; set SDA to output 1     */
2870 			dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
2871 			dev->gpio_val |= 1 << dev->board.tuner_sda_gpio;
2872 			status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
2873 						      dev->gpio_val);
2874 
2875 			/* set SCL to output 1; set SDA to output 1     */
2876 			dev->gpio_val |= 1 << dev->board.tuner_scl_gpio;
2877 			status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
2878 						      dev->gpio_val);
2879 
2880 			/* set SCL to output 0; set SDA to output 1     */
2881 			dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
2882 			status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
2883 						      dev->gpio_val);
2884 		}
2885 	}
2886 	return status;
2887 }
2888 
2889 int cx231xx_gpio_i2c_read_byte(struct cx231xx *dev, u8 *buf)
2890 {
2891 	u8 value = 0;
2892 	int status = 0;
2893 	u32 gpio_logic_value = 0;
2894 	u8 i;
2895 
2896 	/* read byte */
2897 	for (i = 0; i < 8; i++) {	/* send write I2c addr */
2898 
2899 		/* set SCL to output 0; set SDA to input */
2900 		dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
2901 		status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
2902 					      dev->gpio_val);
2903 
2904 		/* set SCL to output 1; set SDA to input */
2905 		dev->gpio_val |= 1 << dev->board.tuner_scl_gpio;
2906 		status = cx231xx_set_gpio_bit(dev, dev->gpio_dir,
2907 					      dev->gpio_val);
2908 
2909 		/* get SDA data bit */
2910 		gpio_logic_value = dev->gpio_val;
2911 		status = cx231xx_get_gpio_bit(dev, dev->gpio_dir,
2912 					      &dev->gpio_val);
2913 		if ((dev->gpio_val & (1 << dev->board.tuner_sda_gpio)) != 0)
2914 			value |= (1 << (8 - i - 1));
2915 
2916 		dev->gpio_val = gpio_logic_value;
2917 	}
2918 
2919 	/* set SCL to output 0,finish the read latest SCL signal.
2920 	   !!!set SDA to input, never to modify SDA direction at
2921 	   the same times */
2922 	dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
2923 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
2924 
2925 	/* store the value */
2926 	*buf = value & 0xff;
2927 
2928 	return status;
2929 }
2930 
2931 int cx231xx_gpio_i2c_read_ack(struct cx231xx *dev)
2932 {
2933 	int status = 0;
2934 	u32 gpio_logic_value = 0;
2935 	int nCnt = 10;
2936 	int nInit = nCnt;
2937 
2938 	/* clock stretch; set SCL to input; set SDA to input;
2939 	   get SCL value till SCL = 1 */
2940 	dev->gpio_dir &= ~(1 << dev->board.tuner_sda_gpio);
2941 	dev->gpio_dir &= ~(1 << dev->board.tuner_scl_gpio);
2942 
2943 	gpio_logic_value = dev->gpio_val;
2944 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
2945 
2946 	do {
2947 		msleep(2);
2948 		status = cx231xx_get_gpio_bit(dev, dev->gpio_dir,
2949 					      &dev->gpio_val);
2950 		nCnt--;
2951 	} while (((dev->gpio_val &
2952 			  (1 << dev->board.tuner_scl_gpio)) == 0) &&
2953 			 (nCnt > 0));
2954 
2955 	if (nCnt == 0)
2956 		dev_dbg(dev->dev,
2957 			"No ACK after %d msec -GPIO I2C failed!",
2958 			nInit * 10);
2959 
2960 	/*
2961 	 * readAck
2962 	 * through clock stretch, slave has given a SCL signal,
2963 	 * so the SDA data can be directly read.
2964 	 */
2965 	status = cx231xx_get_gpio_bit(dev, dev->gpio_dir, &dev->gpio_val);
2966 
2967 	if ((dev->gpio_val & 1 << dev->board.tuner_sda_gpio) == 0) {
2968 		dev->gpio_val = gpio_logic_value;
2969 		dev->gpio_val &= ~(1 << dev->board.tuner_sda_gpio);
2970 		status = 0;
2971 	} else {
2972 		dev->gpio_val = gpio_logic_value;
2973 		dev->gpio_val |= (1 << dev->board.tuner_sda_gpio);
2974 	}
2975 
2976 	/* read SDA end, set the SCL to output 0, after this operation,
2977 	   SDA direction can be changed. */
2978 	dev->gpio_val = gpio_logic_value;
2979 	dev->gpio_dir |= (1 << dev->board.tuner_scl_gpio);
2980 	dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
2981 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
2982 
2983 	return status;
2984 }
2985 
2986 int cx231xx_gpio_i2c_write_ack(struct cx231xx *dev)
2987 {
2988 	int status = 0;
2989 
2990 	/* set SDA to ouput */
2991 	dev->gpio_dir |= 1 << dev->board.tuner_sda_gpio;
2992 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
2993 
2994 	/* set SCL = 0 (output); set SDA = 0 (output) */
2995 	dev->gpio_val &= ~(1 << dev->board.tuner_sda_gpio);
2996 	dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
2997 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
2998 
2999 	/* set SCL = 1 (output); set SDA = 0 (output) */
3000 	dev->gpio_val |= 1 << dev->board.tuner_scl_gpio;
3001 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
3002 
3003 	/* set SCL = 0 (output); set SDA = 0 (output) */
3004 	dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
3005 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
3006 
3007 	/* set SDA to input,and then the slave will read data from SDA. */
3008 	dev->gpio_dir &= ~(1 << dev->board.tuner_sda_gpio);
3009 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
3010 
3011 	return status;
3012 }
3013 
3014 int cx231xx_gpio_i2c_write_nak(struct cx231xx *dev)
3015 {
3016 	int status = 0;
3017 
3018 	/* set scl to output ; set sda to input */
3019 	dev->gpio_dir |= 1 << dev->board.tuner_scl_gpio;
3020 	dev->gpio_dir &= ~(1 << dev->board.tuner_sda_gpio);
3021 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
3022 
3023 	/* set scl to output 0; set sda to input */
3024 	dev->gpio_val &= ~(1 << dev->board.tuner_scl_gpio);
3025 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
3026 
3027 	/* set scl to output 1; set sda to input */
3028 	dev->gpio_val |= 1 << dev->board.tuner_scl_gpio;
3029 	status = cx231xx_set_gpio_bit(dev, dev->gpio_dir, dev->gpio_val);
3030 
3031 	return status;
3032 }
3033 
3034 /*****************************************************************************
3035 *                      G P I O I2C related functions                         *
3036 ******************************************************************************/
3037 /* cx231xx_gpio_i2c_read
3038  * Function to read data from gpio based I2C interface
3039  */
3040 int cx231xx_gpio_i2c_read(struct cx231xx *dev, u8 dev_addr, u8 *buf, u8 len)
3041 {
3042 	int status = 0;
3043 	int i = 0;
3044 
3045 	/* get the lock */
3046 	mutex_lock(&dev->gpio_i2c_lock);
3047 
3048 	/* start */
3049 	status = cx231xx_gpio_i2c_start(dev);
3050 
3051 	/* write dev_addr */
3052 	status = cx231xx_gpio_i2c_write_byte(dev, (dev_addr << 1) + 1);
3053 
3054 	/* readAck */
3055 	status = cx231xx_gpio_i2c_read_ack(dev);
3056 
3057 	/* read data */
3058 	for (i = 0; i < len; i++) {
3059 		/* read data */
3060 		buf[i] = 0;
3061 		status = cx231xx_gpio_i2c_read_byte(dev, &buf[i]);
3062 
3063 		if ((i + 1) != len) {
3064 			/* only do write ack if we more length */
3065 			status = cx231xx_gpio_i2c_write_ack(dev);
3066 		}
3067 	}
3068 
3069 	/* write NAK - inform reads are complete */
3070 	status = cx231xx_gpio_i2c_write_nak(dev);
3071 
3072 	/* write end */
3073 	status = cx231xx_gpio_i2c_end(dev);
3074 
3075 	/* release the lock */
3076 	mutex_unlock(&dev->gpio_i2c_lock);
3077 
3078 	return status;
3079 }
3080 
3081 /* cx231xx_gpio_i2c_write
3082  * Function to write data to gpio based I2C interface
3083  */
3084 int cx231xx_gpio_i2c_write(struct cx231xx *dev, u8 dev_addr, u8 *buf, u8 len)
3085 {
3086 	int i = 0;
3087 
3088 	/* get the lock */
3089 	mutex_lock(&dev->gpio_i2c_lock);
3090 
3091 	/* start */
3092 	cx231xx_gpio_i2c_start(dev);
3093 
3094 	/* write dev_addr */
3095 	cx231xx_gpio_i2c_write_byte(dev, dev_addr << 1);
3096 
3097 	/* read Ack */
3098 	cx231xx_gpio_i2c_read_ack(dev);
3099 
3100 	for (i = 0; i < len; i++) {
3101 		/* Write data */
3102 		cx231xx_gpio_i2c_write_byte(dev, buf[i]);
3103 
3104 		/* read Ack */
3105 		cx231xx_gpio_i2c_read_ack(dev);
3106 	}
3107 
3108 	/* write End */
3109 	cx231xx_gpio_i2c_end(dev);
3110 
3111 	/* release the lock */
3112 	mutex_unlock(&dev->gpio_i2c_lock);
3113 
3114 	return 0;
3115 }
3116