1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
|
/*
cx231xx_conf-reg.h - driver for Conexant Cx23100/101/102 USB
video capture devices
Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _POLARIS_REG_H_
#define _POLARIS_REG_H_
#define BOARD_CFG_STAT 0x0
#define TS_MODE_REG 0x4
#define TS1_CFG_REG 0x8
#define TS1_LENGTH_REG 0xc
#define TS2_CFG_REG 0x10
#define TS2_LENGTH_REG 0x14
#define EP_MODE_SET 0x18
#define CIR_PWR_PTN1 0x1c
#define CIR_PWR_PTN2 0x20
#define CIR_PWR_PTN3 0x24
#define CIR_PWR_MASK0 0x28
#define CIR_PWR_MASK1 0x2c
#define CIR_PWR_MASK2 0x30
#define CIR_GAIN 0x34
#define CIR_CAR_REG 0x38
#define CIR_OT_CFG1 0x40
#define CIR_OT_CFG2 0x44
#define PWR_CTL_EN 0x74
/* Polaris Endpoints capture mask for register EP_MODE_SET */
#define ENABLE_EP1 0x01 /* Bit[0]=1 */
#define ENABLE_EP2 0x02 /* Bit[1]=1 */
#define ENABLE_EP3 0x04 /* Bit[2]=1 */
#define ENABLE_EP4 0x08 /* Bit[3]=1 */
#define ENABLE_EP5 0x10 /* Bit[4]=1 */
#define ENABLE_EP6 0x20 /* Bit[5]=1 */
/* Bit definition for register PWR_CTL_EN */
#define PWR_MODE_MASK 0x17f
#define PWR_AV_EN 0x08 /* bit3 */
#define PWR_ISO_EN 0x40 /* bit6 */
#define PWR_AV_MODE 0x30 /* bit4,5 */
#define PWR_TUNER_EN 0x04 /* bit2 */
#define PWR_DEMOD_EN 0x02 /* bit1 */
#define I2C_DEMOD_EN 0x01 /* bit0 */
#define PWR_RESETOUT_EN 0x100 /* bit8 */
enum AV_MODE{
POLARIS_AVMODE_DEFAULT = 0,
POLARIS_AVMODE_DIGITAL = 0x10,
POLARIS_AVMODE_ANALOGT_TV = 0x20,
POLARIS_AVMODE_ENXTERNAL_AV = 0x30,
};
/* Colibri Registers */
#define SINGLE_ENDED 0x0
#define LOW_IF 0x4
#define EU_IF 0x9
#define US_IF 0xa
#define SUP_BLK_TUNE1 0x00
#define SUP_BLK_TUNE2 0x01
#define SUP_BLK_TUNE3 0x02
#define SUP_BLK_XTAL 0x03
#define SUP_BLK_PLL1 0x04
#define SUP_BLK_PLL2 0x05
#define SUP_BLK_PLL3 0x06
#define SUP_BLK_REF 0x07
#define SUP_BLK_PWRDN 0x08
#define SUP_BLK_TESTPAD 0x09
#define ADC_COM_INT5_STAB_REF 0x0a
#define ADC_COM_QUANT 0x0b
#define ADC_COM_BIAS1 0x0c
#define ADC_COM_BIAS2 0x0d
#define ADC_COM_BIAS3 0x0e
#define TESTBUS_CTRL 0x12
#define FLD_PWRDN_TUNING_BIAS 0x10
#define FLD_PWRDN_ENABLE_PLL 0x08
#define FLD_PWRDN_PD_BANDGAP 0x04
#define FLD_PWRDN_PD_BIAS 0x02
#define FLD_PWRDN_PD_TUNECK 0x01
#define ADC_STATUS_CH1 0x20
#define ADC_STATUS_CH2 0x40
#define ADC_STATUS_CH3 0x60
#define ADC_STATUS2_CH1 0x21
#define ADC_STATUS2_CH2 0x41
#define ADC_STATUS2_CH3 0x61
#define ADC_CAL_ATEST_CH1 0x22
#define ADC_CAL_ATEST_CH2 0x42
#define ADC_CAL_ATEST_CH3 0x62
#define ADC_PWRDN_CLAMP_CH1 0x23
#define ADC_PWRDN_CLAMP_CH2 0x43
#define ADC_PWRDN_CLAMP_CH3 0x63
#define ADC_CTRL_DAC23_CH1 0x24
#define ADC_CTRL_DAC23_CH2 0x44
#define ADC_CTRL_DAC23_CH3 0x64
#define ADC_CTRL_DAC1_CH1 0x25
#define ADC_CTRL_DAC1_CH2 0x45
#define ADC_CTRL_DAC1_CH3 0x65
#define ADC_DCSERVO_DEM_CH1 0x26
#define ADC_DCSERVO_DEM_CH2 0x46
#define ADC_DCSERVO_DEM_CH3 0x66
#define ADC_FB_FRCRST_CH1 0x27
#define ADC_FB_FRCRST_CH2 0x47
#define ADC_FB_FRCRST_CH3 0x67
#define ADC_INPUT_CH1 0x28
#define ADC_INPUT_CH2 0x48
#define ADC_INPUT_CH3 0x68
#define INPUT_SEL_MASK 0x30 /* [5:4] in_sel */
#define ADC_NTF_PRECLMP_EN_CH1 0x29
#define ADC_NTF_PRECLMP_EN_CH2 0x49
#define ADC_NTF_PRECLMP_EN_CH3 0x69
#define ADC_QGAIN_RES_TRM_CH1 0x2a
#define ADC_QGAIN_RES_TRM_CH2 0x4a
#define ADC_QGAIN_RES_TRM_CH3 0x6a
#define ADC_SOC_PRECLMP_TERM_CH1 0x2b
#define ADC_SOC_PRECLMP_TERM_CH2 0x4b
#define ADC_SOC_PRECLMP_TERM_CH3 0x6b
#define TESTBUS_CTRL_CH1 0x32
#define TESTBUS_CTRL_CH2 0x52
#define TESTBUS_CTRL_CH3 0x72
/******************************************************************************
* DIF registers *
******************************************************************************/
#define DIRECT_IF_REVB_BASE 0x00300
/*****************************************************************************/
#define DIF_PLL_FREQ_WORD (DIRECT_IF_REVB_BASE + 0x00000000)
/*****************************************************************************/
#define FLD_DIF_PLL_LOCK 0x80000000
/* Reserved [30:29] */
#define FLD_DIF_PLL_FREE_RUN 0x10000000
#define FLD_DIF_PLL_FREQ 0x0fffffff
/*****************************************************************************/
#define DIF_PLL_CTRL (DIRECT_IF_REVB_BASE + 0x00000004)
/*****************************************************************************/
#define FLD_DIF_KD_PD 0xff000000
/* Reserved [23:20] */
#define FLD_DIF_KDS_PD 0x000f0000
#define FLD_DIF_KI_PD 0x0000ff00
/* Reserved [7:4] */
#define FLD_DIF_KIS_PD 0x0000000f
/*****************************************************************************/
#define DIF_PLL_CTRL1 (DIRECT_IF_REVB_BASE + 0x00000008)
/*****************************************************************************/
#define FLD_DIF_KD_FD 0xff000000
/* Reserved [23:20] */
#define FLD_DIF_KDS_FD 0x000f0000
#define FLD_DIF_KI_FD 0x0000ff00
#define FLD_DIF_SIG_PROP_SZ 0x000000f0
#define FLD_DIF_KIS_FD 0x0000000f
/*****************************************************************************/
#define DIF_PLL_CTRL2 (DIRECT_IF_REVB_BASE + 0x0000000c)
/*****************************************************************************/
#define FLD_DIF_PLL_AGC_REF 0xfff00000
#define FLD_DIF_PLL_AGC_KI 0x000f0000
/* Reserved [15] */
#define FLD_DIF_FREQ_LIMIT 0x00007000
#define FLD_DIF_K_FD 0x00000f00
#define FLD_DIF_DOWNSMPL_FD 0x000000ff
/*****************************************************************************/
#define DIF_PLL_CTRL3 (DIRECT_IF_REVB_BASE + 0x00000010)
/*****************************************************************************/
/* Reserved [31:16] */
#define FLD_DIF_PLL_AGC_EN 0x00008000
/* Reserved [14:12] */
#define FLD_DIF_PLL_MAN_GAIN 0x00000fff
/*****************************************************************************/
#define DIF_AGC_IF_REF (DIRECT_IF_REVB_BASE + 0x00000014)
/*****************************************************************************/
#define FLD_DIF_K_AGC_RF 0xf0000000
#define FLD_DIF_K_AGC_IF 0x0f000000
#define FLD_DIF_K_AGC_INT 0x00f00000
/* Reserved [19:12] */
#define FLD_DIF_IF_REF 0x00000fff
/*****************************************************************************/
#define DIF_AGC_CTRL_IF (DIRECT_IF_REVB_BASE + 0x00000018)
/*****************************************************************************/
#define FLD_DIF_IF_MAX 0xff000000
#define FLD_DIF_IF_MIN 0x00ff0000
#define FLD_DIF_IF_AGC 0x0000ffff
/*****************************************************************************/
#define DIF_AGC_CTRL_INT (DIRECT_IF_REVB_BASE + 0x0000001c)
/*****************************************************************************/
#define FLD_DIF_INT_MAX 0xff000000
#define FLD_DIF_INT_MIN 0x00ff0000
#define FLD_DIF_INT_AGC 0x0000ffff
/*****************************************************************************/
#define DIF_AGC_CTRL_RF (DIRECT_IF_REVB_BASE + 0x00000020)
/*****************************************************************************/
#define FLD_DIF_RF_MAX 0xff000000
#define FLD_DIF_RF_MIN 0x00ff0000
#define FLD_DIF_RF_AGC 0x0000ffff
/*****************************************************************************/
#define DIF_AGC_IF_INT_CURRENT (DIRECT_IF_REVB_BASE + 0x00000024)
/*****************************************************************************/
#define FLD_DIF_IF_AGC_IN 0xffff0000
#define FLD_DIF_INT_AGC_IN 0x0000ffff
/*****************************************************************************/
#define DIF_AGC_RF_CURRENT (DIRECT_IF_REVB_BASE + 0x00000028)
/*****************************************************************************/
/* Reserved [31:16] */
#define FLD_DIF_RF_AGC_IN 0x0000ffff
/*****************************************************************************/
#define DIF_VIDEO_AGC_CTRL (DIRECT_IF_REVB_BASE + 0x0000002c)
/*****************************************************************************/
#define FLD_DIF_AFD 0xc0000000
#define FLD_DIF_K_VID_AGC 0x30000000
#define FLD_DIF_LINE_LENGTH 0x0fff0000
#define FLD_DIF_AGC_GAIN 0x0000ffff
/*****************************************************************************/
#define DIF_VID_AUD_OVERRIDE (DIRECT_IF_REVB_BASE + 0x00000030)
/*****************************************************************************/
#define FLD_DIF_AUDIO_AGC_OVERRIDE 0x80000000
/* Reserved [30:30] */
#define FLD_DIF_AUDIO_MAN_GAIN 0x3f000000
/* Reserved [23:17] */
#define FLD_DIF_VID_AGC_OVERRIDE 0x00010000
#define FLD_DIF_VID_MAN_GAIN 0x0000ffff
/*****************************************************************************/
#define DIF_AV_SEP_CTRL (DIRECT_IF_REVB_BASE + 0x00000034)
/*****************************************************************************/
#define FLD_DIF_LPF_FREQ 0xc0000000
#define FLD_DIF_AV_PHASE_INC 0x3f000000
#define FLD_DIF_AUDIO_FREQ 0x00ffffff
/*****************************************************************************/
#define DIF_COMP_FLT_CTRL (DIRECT_IF_REVB_BASE + 0x00000038)
/*****************************************************************************/
/* Reserved [31:24] */
#define FLD_DIF_IIR23_R2 0x00ff0000
#define FLD_DIF_IIR23_R1 0x0000ff00
#define FLD_DIF_IIR1_R1 0x000000ff
/*****************************************************************************/
#define DIF_MISC_CTRL (DIRECT_IF_REVB_BASE + 0x0000003c)
/*****************************************************************************/
#define FLD_DIF_DIF_BYPASS 0x80000000
#define FLD_DIF_FM_NYQ_GAIN 0x40000000
#define FLD_DIF_RF_AGC_ENA 0x20000000
#define FLD_DIF_INT_AGC_ENA 0x10000000
#define FLD_DIF_IF_AGC_ENA 0x08000000
#define FLD_DIF_FORCE_RF_IF_LOCK 0x04000000
#define FLD_DIF_VIDEO_AGC_ENA 0x02000000
#define FLD_DIF_RF_AGC_INV 0x01000000
#define FLD_DIF_INT_AGC_INV 0x00800000
#define FLD_DIF_IF_AGC_INV 0x00400000
#define FLD_DIF_SPEC_INV 0x00200000
#define FLD_DIF_AUD_FULL_BW 0x00100000
#define FLD_DIF_AUD_SRC_SEL 0x00080000
/* Reserved [18] */
#define FLD_DIF_IF_FREQ 0x00030000
/* Reserved [15:14] */
#define FLD_DIF_TIP_OFFSET 0x00003f00
/* Reserved [7:5] */
#define FLD_DIF_DITHER_ENA 0x00000010
/* Reserved [3:1] */
#define FLD_DIF_RF_IF_LOCK 0x00000001
/*****************************************************************************/
#define DIF_SRC_PHASE_INC (DIRECT_IF_REVB_BASE + 0x00000040)
/*****************************************************************************/
/* Reserved [31:29] */
#define FLD_DIF_PHASE_INC 0x1fffffff
/*****************************************************************************/
#define DIF_SRC_GAIN_CONTROL (DIRECT_IF_REVB_BASE + 0x00000044)
/*****************************************************************************/
/* Reserved [31:16] */
#define FLD_DIF_SRC_KI 0x0000ff00
#define FLD_DIF_SRC_KD 0x000000ff
/*****************************************************************************/
#define DIF_BPF_COEFF01 (DIRECT_IF_REVB_BASE + 0x00000048)
/*****************************************************************************/
/* Reserved [31:19] */
#define FLD_DIF_BPF_COEFF_0 0x00070000
/* Reserved [15:4] */
#define FLD_DIF_BPF_COEFF_1 0x0000000f
/*****************************************************************************/
#define DIF_BPF_COEFF23 (DIRECT_IF_REVB_BASE + 0x0000004c)
/*****************************************************************************/
/* Reserved [31:22] */
#define FLD_DIF_BPF_COEFF_2 0x003f0000
/* Reserved [15:7] */
#define FLD_DIF_BPF_COEFF_3 0x0000007f
/*****************************************************************************/
#define DIF_BPF_COEFF45 (DIRECT_IF_REVB_BASE + 0x00000050)
/*****************************************************************************/
/* Reserved [31:24] */
#define FLD_DIF_BPF_COEFF_4 0x00ff0000
/* Reserved [15:8] */
#define FLD_DIF_BPF_COEFF_5 0x000000ff
/*****************************************************************************/
#define DIF_BPF_COEFF67 (DIRECT_IF_REVB_BASE + 0x00000054)
/*****************************************************************************/
/* Reserved [31:25] */
#define FLD_DIF_BPF_COEFF_6 0x01ff0000
/* Reserved [15:9] */
#define FLD_DIF_BPF_COEFF_7 0x000001ff
/*****************************************************************************/
#define DIF_BPF_COEFF89 (DIRECT_IF_REVB_BASE + 0x00000058)
/*****************************************************************************/
/* Reserved [31:26] */
#define FLD_DIF_BPF_COEFF_8 0x03ff0000
/* Reserved [15:10] */
#define FLD_DIF_BPF_COEFF_9 0x000003ff
/*****************************************************************************/
#define DIF_BPF_COEFF1011 (DIRECT_IF_REVB_BASE + 0x0000005c)
/*****************************************************************************/
/* Reserved [31:27] */
#define FLD_DIF_BPF_COEFF_10 0x07ff0000
/* Reserved [15:11] */
#define FLD_DIF_BPF_COEFF_11 0x000007ff
/*****************************************************************************/
#define DIF_BPF_COEFF1213 (DIRECT_IF_REVB_BASE + 0x00000060)
/*****************************************************************************/
/* Reserved [31:27] */
#define FLD_DIF_BPF_COEFF_12 0x07ff0000
/* Reserved [15:12] */
#define FLD_DIF_BPF_COEFF_13 0x00000fff
/*****************************************************************************/
#define DIF_BPF_COEFF1415 (DIRECT_IF_REVB_BASE + 0x00000064)
/*****************************************************************************/
/* Reserved [31:28] */
#define FLD_DIF_BPF_COEFF_14 0x0fff0000
/* Reserved [15:12] */
#define FLD_DIF_BPF_COEFF_15 0x00000fff
/*****************************************************************************/
#define DIF_BPF_COEFF1617 (DIRECT_IF_REVB_BASE + 0x00000068)
/*****************************************************************************/
/* Reserved [31:29] */
#define FLD_DIF_BPF_COEFF_16 0x1fff0000
/* Reserved [15:13] */
#define FLD_DIF_BPF_COEFF_17 0x00001fff
/*****************************************************************************/
#define DIF_BPF_COEFF1819 (DIRECT_IF_REVB_BASE + 0x0000006c)
/*****************************************************************************/
/* Reserved [31:29] */
#define FLD_DIF_BPF_COEFF_18 0x1fff0000
/* Reserved [15:13] */
#define FLD_DIF_BPF_COEFF_19 0x00001fff
/*****************************************************************************/
#define DIF_BPF_COEFF2021 (DIRECT_IF_REVB_BASE + 0x00000070)
/*****************************************************************************/
/* Reserved [31:29] */
#define FLD_DIF_BPF_COEFF_20 0x1fff0000
/* Reserved [15:14] */
#define FLD_DIF_BPF_COEFF_21 0x00003fff
/*****************************************************************************/
#define DIF_BPF_COEFF2223 (DIRECT_IF_REVB_BASE + 0x00000074)
/*****************************************************************************/
/* Reserved [31:30] */
#define FLD_DIF_BPF_COEFF_22 0x3fff0000
/* Reserved [15:14] */
#define FLD_DIF_BPF_COEFF_23 0x00003fff
/*****************************************************************************/
#define DIF_BPF_COEFF2425 (DIRECT_IF_REVB_BASE + 0x00000078)
/*****************************************************************************/
/* Reserved [31:30] */
#define FLD_DIF_BPF_COEFF_24 0x3fff0000
/* Reserved [15:14] */
#define FLD_DIF_BPF_COEFF_25 0x00003fff
/*****************************************************************************/
#define DIF_BPF_COEFF2627 (DIRECT_IF_REVB_BASE + 0x0000007c)
/*****************************************************************************/
/* Reserved [31:30] */
#define FLD_DIF_BPF_COEFF_26 0x3fff0000
/* Reserved [15:14] */
#define FLD_DIF_BPF_COEFF_27 0x00003fff
/*****************************************************************************/
#define DIF_BPF_COEFF2829 (DIRECT_IF_REVB_BASE + 0x00000080)
/*****************************************************************************/
/* Reserved [31:30] */
#define FLD_DIF_BPF_COEFF_28 0x3fff0000
/* Reserved [15:14] */
#define FLD_DIF_BPF_COEFF_29 0x00003fff
/*****************************************************************************/
#define DIF_BPF_COEFF3031 (DIRECT_IF_REVB_BASE + 0x00000084)
/*****************************************************************************/
/* Reserved [31:30] */
#define FLD_DIF_BPF_COEFF_30 0x3fff0000
/* Reserved [15:14] */
#define FLD_DIF_BPF_COEFF_31 0x00003fff
/*****************************************************************************/
#define DIF_BPF_COEFF3233 (DIRECT_IF_REVB_BASE + 0x00000088)
/*****************************************************************************/
/* Reserved [31:30] */
#define FLD_DIF_BPF_COEFF_32 0x3fff0000
/* Reserved [15:14] */
#define FLD_DIF_BPF_COEFF_33 0x00003fff
/*****************************************************************************/
#define DIF_BPF_COEFF3435 (DIRECT_IF_REVB_BASE + 0x0000008c)
/*****************************************************************************/
/* Reserved [31:30] */
#define FLD_DIF_BPF_COEFF_34 0x3fff0000
/* Reserved [15:14] */
#define FLD_DIF_BPF_COEFF_35 0x00003fff
/*****************************************************************************/
#define DIF_BPF_COEFF36 (DIRECT_IF_REVB_BASE + 0x00000090)
/*****************************************************************************/
/* Reserved [31:30] */
#define FLD_DIF_BPF_COEFF_36 0x3fff0000
/* Reserved [15:0] */
/*****************************************************************************/
#define DIF_RPT_VARIANCE (DIRECT_IF_REVB_BASE + 0x00000094)
/*****************************************************************************/
/* Reserved [31:20] */
#define FLD_DIF_RPT_VARIANCE 0x000fffff
/*****************************************************************************/
#define DIF_SOFT_RST_CTRL_REVB (DIRECT_IF_REVB_BASE + 0x00000098)
/*****************************************************************************/
/* Reserved [31:8] */
#define FLD_DIF_DIF_SOFT_RST 0x00000080
#define FLD_DIF_DIF_REG_RST_MSK 0x00000040
#define FLD_DIF_AGC_RST_MSK 0x00000020
#define FLD_DIF_CMP_RST_MSK 0x00000010
#define FLD_DIF_AVS_RST_MSK 0x00000008
#define FLD_DIF_NYQ_RST_MSK 0x00000004
#define FLD_DIF_DIF_SRC_RST_MSK 0x00000002
#define FLD_DIF_PLL_RST_MSK 0x00000001
/*****************************************************************************/
#define DIF_PLL_FREQ_ERR (DIRECT_IF_REVB_BASE + 0x0000009c)
/*****************************************************************************/
/* Reserved [31:25] */
#define FLD_DIF_CTL_IP 0x01ffffff
#endif
|
