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brcmfmac: remove unnecessary EXPORT_SYMBOL() usage
[deliverable/linux.git] / drivers / staging / winbond / phy_calibration.c
1 /*
2 * phy_302_calibration.c
3 *
4 * Copyright (C) 2002, 2005 Winbond Electronics Corp.
5 *
6 * modification history
7 * ---------------------------------------------------------------------------
8 * 0.01.001, 2003-04-16, Kevin created
9 *
10 */
11
12 /****************** INCLUDE FILES SECTION ***********************************/
13 #include "phy_calibration.h"
14 #include "wbhal.h"
15 #include "wb35reg_f.h"
16 #include "core.h"
17
18
19 /****************** DEBUG CONSTANT AND MACRO SECTION ************************/
20
21 /****************** LOCAL CONSTANT AND MACRO SECTION ************************/
22 #define LOOP_TIMES 20
23 #define US 1000/* MICROSECOND*/
24
25 #define AG_CONST 0.6072529350
26 #define FIXED(X) ((s32)((X) * 32768.0))
27 #define DEG2RAD(X) (0.017453 * (X))
28
29 static const s32 Angles[] = {
30 FIXED(DEG2RAD(45.0)), FIXED(DEG2RAD(26.565)),
31 FIXED(DEG2RAD(14.0362)), FIXED(DEG2RAD(7.12502)),
32 FIXED(DEG2RAD(3.57633)), FIXED(DEG2RAD(1.78991)),
33 FIXED(DEG2RAD(0.895174)), FIXED(DEG2RAD(0.447614)),
34 FIXED(DEG2RAD(0.223811)), FIXED(DEG2RAD(0.111906)),
35 FIXED(DEG2RAD(0.055953)), FIXED(DEG2RAD(0.027977))
36 };
37
38 /****************** LOCAL FUNCTION DECLARATION SECTION **********************/
39
40 /*
41 * void _phy_rf_write_delay(struct hw_data *phw_data);
42 * void phy_init_rf(struct hw_data *phw_data);
43 */
44
45 /****************** FUNCTION DEFINITION SECTION *****************************/
46
47 static s32 _s13_to_s32(u32 data)
48 {
49 u32 val;
50
51 val = (data & 0x0FFF);
52
53 if ((data & BIT(12)) != 0)
54 val |= 0xFFFFF000;
55
56 return (s32) val;
57 }
58
59 /****************************************************************************/
60 static s32 _s4_to_s32(u32 data)
61 {
62 s32 val;
63
64 val = (data & 0x0007);
65
66 if ((data & BIT(3)) != 0)
67 val |= 0xFFFFFFF8;
68
69 return val;
70 }
71
72 static u32 _s32_to_s4(s32 data)
73 {
74 u32 val;
75
76 if (data > 7)
77 data = 7;
78 else if (data < -8)
79 data = -8;
80
81 val = data & 0x000F;
82
83 return val;
84 }
85
86 /****************************************************************************/
87 static s32 _s5_to_s32(u32 data)
88 {
89 s32 val;
90
91 val = (data & 0x000F);
92
93 if ((data & BIT(4)) != 0)
94 val |= 0xFFFFFFF0;
95
96 return val;
97 }
98
99 static u32 _s32_to_s5(s32 data)
100 {
101 u32 val;
102
103 if (data > 15)
104 data = 15;
105 else if (data < -16)
106 data = -16;
107
108 val = data & 0x001F;
109
110 return val;
111 }
112
113 /****************************************************************************/
114 static s32 _s6_to_s32(u32 data)
115 {
116 s32 val;
117
118 val = (data & 0x001F);
119
120 if ((data & BIT(5)) != 0)
121 val |= 0xFFFFFFE0;
122
123 return val;
124 }
125
126 static u32 _s32_to_s6(s32 data)
127 {
128 u32 val;
129
130 if (data > 31)
131 data = 31;
132 else if (data < -32)
133 data = -32;
134
135 val = data & 0x003F;
136
137 return val;
138 }
139
140 /****************************************************************************/
141 static s32 _floor(s32 n)
142 {
143 if (n > 0)
144 n += 5;
145 else
146 n -= 5;
147
148 return n/10;
149 }
150
151 /****************************************************************************/
152 /*
153 * The following code is sqare-root function.
154 * sqsum is the input and the output is sq_rt;
155 * The maximum of sqsum = 2^27 -1;
156 */
157 static u32 _sqrt(u32 sqsum)
158 {
159 u32 sq_rt;
160
161 int g0, g1, g2, g3, g4;
162 int seed;
163 int next;
164 int step;
165
166 g4 = sqsum / 100000000;
167 g3 = (sqsum - g4*100000000) / 1000000;
168 g2 = (sqsum - g4*100000000 - g3*1000000) / 10000;
169 g1 = (sqsum - g4*100000000 - g3*1000000 - g2*10000) / 100;
170 g0 = (sqsum - g4*100000000 - g3*1000000 - g2*10000 - g1*100);
171
172 next = g4;
173 step = 0;
174 seed = 0;
175 while (((seed+1)*(step+1)) <= next) {
176 step++;
177 seed++;
178 }
179
180 sq_rt = seed * 10000;
181 next = (next-(seed*step))*100 + g3;
182
183 step = 0;
184 seed = 2 * seed * 10;
185 while (((seed+1)*(step+1)) <= next) {
186 step++;
187 seed++;
188 }
189
190 sq_rt = sq_rt + step * 1000;
191 next = (next - seed * step) * 100 + g2;
192 seed = (seed + step) * 10;
193 step = 0;
194 while (((seed+1)*(step+1)) <= next) {
195 step++;
196 seed++;
197 }
198
199 sq_rt = sq_rt + step * 100;
200 next = (next - seed * step) * 100 + g1;
201 seed = (seed + step) * 10;
202 step = 0;
203
204 while (((seed+1)*(step+1)) <= next) {
205 step++;
206 seed++;
207 }
208
209 sq_rt = sq_rt + step * 10;
210 next = (next - seed * step) * 100 + g0;
211 seed = (seed + step) * 10;
212 step = 0;
213
214 while (((seed+1)*(step+1)) <= next) {
215 step++;
216 seed++;
217 }
218
219 sq_rt = sq_rt + step;
220
221 return sq_rt;
222 }
223
224 /****************************************************************************/
225 static void _sin_cos(s32 angle, s32 *sin, s32 *cos)
226 {
227 s32 X, Y, TargetAngle, CurrAngle;
228 unsigned Step;
229
230 X = FIXED(AG_CONST); /* AG_CONST * cos(0) */
231 Y = 0; /* AG_CONST * sin(0) */
232 TargetAngle = abs(angle);
233 CurrAngle = 0;
234
235 for (Step = 0; Step < 12; Step++) {
236 s32 NewX;
237
238 if (TargetAngle > CurrAngle) {
239 NewX = X - (Y >> Step);
240 Y = (X >> Step) + Y;
241 X = NewX;
242 CurrAngle += Angles[Step];
243 } else {
244 NewX = X + (Y >> Step);
245 Y = -(X >> Step) + Y;
246 X = NewX;
247 CurrAngle -= Angles[Step];
248 }
249 }
250
251 if (angle > 0) {
252 *cos = X;
253 *sin = Y;
254 } else {
255 *cos = X;
256 *sin = -Y;
257 }
258 }
259
260 static unsigned char hal_get_dxx_reg(struct hw_data *pHwData, u16 number,
261 u32 *pValue)
262 {
263 if (number < 0x1000)
264 number += 0x1000;
265 return Wb35Reg_ReadSync(pHwData, number, pValue);
266 }
267 #define hw_get_dxx_reg(_A, _B, _C) hal_get_dxx_reg(_A, _B, (u32 *)_C)
268
269 static unsigned char hal_set_dxx_reg(struct hw_data *pHwData, u16 number,
270 u32 value)
271 {
272 unsigned char ret;
273
274 if (number < 0x1000)
275 number += 0x1000;
276 ret = Wb35Reg_WriteSync(pHwData, number, value);
277 return ret;
278 }
279 #define hw_set_dxx_reg(_A, _B, _C) hal_set_dxx_reg(_A, _B, (u32)_C)
280
281
282 static void _reset_rx_cal(struct hw_data *phw_data)
283 {
284 u32 val;
285
286 hw_get_dxx_reg(phw_data, 0x54, &val);
287
288 if (phw_data->revision == 0x2002) /* 1st-cut */
289 val &= 0xFFFF0000;
290 else /* 2nd-cut */
291 val &= 0x000003FF;
292
293 hw_set_dxx_reg(phw_data, 0x54, val);
294 }
295
296
297 /**************for winbond calibration*********/
298
299
300
301 /**********************************************/
302 static void _rxadc_dc_offset_cancellation_winbond(struct hw_data *phw_data, u32 frequency)
303 {
304 u32 reg_agc_ctrl3;
305 u32 reg_a_acq_ctrl;
306 u32 reg_b_acq_ctrl;
307 u32 val;
308
309 PHY_DEBUG(("[CAL] -> [1]_rxadc_dc_offset_cancellation()\n"));
310 phy_init_rf(phw_data);
311
312 /* set calibration channel */
313 if ((RF_WB_242 == phw_data->phy_type) ||
314 (RF_WB_242_1 == phw_data->phy_type)) /* 20060619.5 Add */{
315 if ((frequency >= 2412) && (frequency <= 2484)) {
316 /* w89rf242 change frequency to 2390Mhz */
317 PHY_DEBUG(("[CAL] W89RF242/11G/Channel=2390Mhz\n"));
318 phy_set_rf_data(phw_data, 3, (3<<24)|0x025586);
319
320 }
321 } else {
322
323 }
324
325 /* reset cancel_dc_i[9:5] and cancel_dc_q[4:0] in register DC_Cancel */
326 hw_get_dxx_reg(phw_data, 0x5C, &val);
327 val &= ~(0x03FF);
328 hw_set_dxx_reg(phw_data, 0x5C, val);
329
330 /* reset the TX and RX IQ calibration data */
331 hw_set_dxx_reg(phw_data, 0x3C, 0);
332 hw_set_dxx_reg(phw_data, 0x54, 0);
333
334 hw_set_dxx_reg(phw_data, 0x58, 0x30303030); /* IQ_Alpha Changed */
335
336 /* a. Disable AGC */
337 hw_get_dxx_reg(phw_data, REG_AGC_CTRL3, &reg_agc_ctrl3);
338 reg_agc_ctrl3 &= ~BIT(2);
339 reg_agc_ctrl3 |= (MASK_LNA_FIX_GAIN|MASK_AGC_FIX);
340 hw_set_dxx_reg(phw_data, REG_AGC_CTRL3, reg_agc_ctrl3);
341
342 hw_get_dxx_reg(phw_data, REG_AGC_CTRL5, &val);
343 val |= MASK_AGC_FIX_GAIN;
344 hw_set_dxx_reg(phw_data, REG_AGC_CTRL5, val);
345
346 /* b. Turn off BB RX */
347 hw_get_dxx_reg(phw_data, REG_A_ACQ_CTRL, &reg_a_acq_ctrl);
348 reg_a_acq_ctrl |= MASK_AMER_OFF_REG;
349 hw_set_dxx_reg(phw_data, REG_A_ACQ_CTRL, reg_a_acq_ctrl);
350
351 hw_get_dxx_reg(phw_data, REG_B_ACQ_CTRL, &reg_b_acq_ctrl);
352 reg_b_acq_ctrl |= MASK_BMER_OFF_REG;
353 hw_set_dxx_reg(phw_data, REG_B_ACQ_CTRL, reg_b_acq_ctrl);
354
355 /* c. Make sure MAC is in receiving mode
356 * d. Turn ON ADC calibration
357 * - ADC calibrator is triggered by this signal rising from 0 to 1 */
358 hw_get_dxx_reg(phw_data, REG_MODE_CTRL, &val);
359 val &= ~MASK_ADC_DC_CAL_STR;
360 hw_set_dxx_reg(phw_data, REG_MODE_CTRL, val);
361
362 val |= MASK_ADC_DC_CAL_STR;
363 hw_set_dxx_reg(phw_data, REG_MODE_CTRL, val);
364
365 /* e. The results are shown in "adc_dc_cal_i[8:0] and adc_dc_cal_q[8:0]" */
366 #ifdef _DEBUG
367 hw_get_dxx_reg(phw_data, REG_OFFSET_READ, &val);
368 PHY_DEBUG(("[CAL] REG_OFFSET_READ = 0x%08X\n", val));
369
370 PHY_DEBUG(("[CAL] ** adc_dc_cal_i = %d (0x%04X)\n",
371 _s9_to_s32(val&0x000001FF), val&0x000001FF));
372 PHY_DEBUG(("[CAL] ** adc_dc_cal_q = %d (0x%04X)\n",
373 _s9_to_s32((val&0x0003FE00)>>9),
374 (val&0x0003FE00)>>9));
375 #endif
376
377 hw_get_dxx_reg(phw_data, REG_MODE_CTRL, &val);
378 val &= ~MASK_ADC_DC_CAL_STR;
379 hw_set_dxx_reg(phw_data, REG_MODE_CTRL, val);
380
381 /* f. Turn on BB RX */
382 /* hw_get_dxx_reg(phw_data, REG_A_ACQ_CTRL, &reg_a_acq_ctrl); */
383 reg_a_acq_ctrl &= ~MASK_AMER_OFF_REG;
384 hw_set_dxx_reg(phw_data, REG_A_ACQ_CTRL, reg_a_acq_ctrl);
385
386 /* hw_get_dxx_reg(phw_data, REG_B_ACQ_CTRL, &reg_b_acq_ctrl); */
387 reg_b_acq_ctrl &= ~MASK_BMER_OFF_REG;
388 hw_set_dxx_reg(phw_data, REG_B_ACQ_CTRL, reg_b_acq_ctrl);
389
390 /* g. Enable AGC */
391 /* hw_get_dxx_reg(phw_data, REG_AGC_CTRL3, &val); */
392 reg_agc_ctrl3 |= BIT(2);
393 reg_agc_ctrl3 &= ~(MASK_LNA_FIX_GAIN|MASK_AGC_FIX);
394 hw_set_dxx_reg(phw_data, REG_AGC_CTRL3, reg_agc_ctrl3);
395 }
396
397 /* 20060612.1.a 20060718.1 Modify */
398 static u8 _tx_iq_calibration_loop_winbond(struct hw_data *phw_data,
399 s32 a_2_threshold,
400 s32 b_2_threshold)
401 {
402 u32 reg_mode_ctrl;
403 s32 iq_mag_0_tx;
404 s32 iqcal_tone_i0;
405 s32 iqcal_tone_q0;
406 s32 iqcal_tone_i;
407 s32 iqcal_tone_q;
408 u32 sqsum;
409 s32 rot_i_b;
410 s32 rot_q_b;
411 s32 tx_cal_flt_b[4];
412 s32 tx_cal[4];
413 s32 tx_cal_reg[4];
414 s32 a_2, b_2;
415 s32 sin_b, sin_2b;
416 s32 cos_b, cos_2b;
417 s32 divisor;
418 s32 temp1, temp2;
419 u32 val;
420 u16 loop;
421 s32 iqcal_tone_i_avg, iqcal_tone_q_avg;
422 u8 verify_count;
423 int capture_time;
424
425 PHY_DEBUG(("[CAL] -> _tx_iq_calibration_loop()\n"));
426 PHY_DEBUG(("[CAL] ** a_2_threshold = %d\n", a_2_threshold));
427 PHY_DEBUG(("[CAL] ** b_2_threshold = %d\n", b_2_threshold));
428
429 verify_count = 0;
430
431 hw_get_dxx_reg(phw_data, REG_MODE_CTRL, &reg_mode_ctrl);
432 PHY_DEBUG(("[CAL] MODE_CTRL (read) = 0x%08X\n", reg_mode_ctrl));
433
434 loop = LOOP_TIMES;
435
436 while (loop > 0) {
437 PHY_DEBUG(("[CAL] [%d.] <_tx_iq_calibration_loop>\n",
438 (LOOP_TIMES-loop+1)));
439
440 iqcal_tone_i_avg = 0;
441 iqcal_tone_q_avg = 0;
442 if (!hw_set_dxx_reg(phw_data, 0x3C, 0x00)) /* 20060718.1 modify */
443 return 0;
444 for (capture_time = 0; capture_time < 10; capture_time++) {
445 /*
446 * a. Set iqcal_mode[1:0] to 0x2 and set "calib_start"
447 * to 0x1 to enable "IQ calibration Mode II"
448 */
449 reg_mode_ctrl &= ~(MASK_IQCAL_TONE_SEL|MASK_IQCAL_MODE);
450 reg_mode_ctrl &= ~MASK_IQCAL_MODE;
451 reg_mode_ctrl |= (MASK_CALIB_START|0x02);
452 reg_mode_ctrl |= (MASK_CALIB_START|0x02|2<<2);
453 hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl);
454 PHY_DEBUG(("[CAL] MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl));
455
456 /* b. */
457 hw_get_dxx_reg(phw_data, REG_CALIB_READ1, &val);
458 PHY_DEBUG(("[CAL] CALIB_READ1 = 0x%08X\n", val));
459
460 iqcal_tone_i0 = _s13_to_s32(val & 0x00001FFF);
461 iqcal_tone_q0 = _s13_to_s32((val & 0x03FFE000) >> 13);
462 PHY_DEBUG(("[CAL] ** iqcal_tone_i0=%d, iqcal_tone_q0=%d\n",
463 iqcal_tone_i0, iqcal_tone_q0));
464
465 sqsum = iqcal_tone_i0*iqcal_tone_i0 +
466 iqcal_tone_q0*iqcal_tone_q0;
467 iq_mag_0_tx = (s32) _sqrt(sqsum);
468 PHY_DEBUG(("[CAL] ** iq_mag_0_tx=%d\n", iq_mag_0_tx));
469
470 /* c. Set "calib_start" to 0x0 */
471 reg_mode_ctrl &= ~MASK_CALIB_START;
472 hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl);
473 PHY_DEBUG(("[CAL] MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl));
474
475 /*
476 * d. Set iqcal_mode[1:0] to 0x3 and set "calib_start"
477 * to 0x1 to enable "IQ calibration Mode II"
478 */
479 /* hw_get_dxx_reg(phw_data, REG_MODE_CTRL, &val); */
480 hw_get_dxx_reg(phw_data, REG_MODE_CTRL, &reg_mode_ctrl);
481 reg_mode_ctrl &= ~MASK_IQCAL_MODE;
482 reg_mode_ctrl |= (MASK_CALIB_START|0x03);
483 hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl);
484 PHY_DEBUG(("[CAL] MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl));
485
486 /* e. */
487 hw_get_dxx_reg(phw_data, REG_CALIB_READ1, &val);
488 PHY_DEBUG(("[CAL] CALIB_READ1 = 0x%08X\n", val));
489
490 iqcal_tone_i = _s13_to_s32(val & 0x00001FFF);
491 iqcal_tone_q = _s13_to_s32((val & 0x03FFE000) >> 13);
492 PHY_DEBUG(("[CAL] ** iqcal_tone_i = %d, iqcal_tone_q = %d\n",
493 iqcal_tone_i, iqcal_tone_q));
494 if (capture_time == 0)
495 continue;
496 else {
497 iqcal_tone_i_avg = (iqcal_tone_i_avg*(capture_time-1) + iqcal_tone_i)/capture_time;
498 iqcal_tone_q_avg = (iqcal_tone_q_avg*(capture_time-1) + iqcal_tone_q)/capture_time;
499 }
500 }
501
502 iqcal_tone_i = iqcal_tone_i_avg;
503 iqcal_tone_q = iqcal_tone_q_avg;
504
505
506 rot_i_b = (iqcal_tone_i * iqcal_tone_i0 +
507 iqcal_tone_q * iqcal_tone_q0) / 1024;
508 rot_q_b = (iqcal_tone_i * iqcal_tone_q0 * (-1) +
509 iqcal_tone_q * iqcal_tone_i0) / 1024;
510 PHY_DEBUG(("[CAL] ** rot_i_b = %d, rot_q_b = %d\n",
511 rot_i_b, rot_q_b));
512
513 /* f. */
514 divisor = ((iq_mag_0_tx * iq_mag_0_tx * 2)/1024 - rot_i_b) * 2;
515
516 if (divisor == 0) {
517 PHY_DEBUG(("[CAL] ** <_tx_iq_calibration_loop> ERROR *******\n"));
518 PHY_DEBUG(("[CAL] ** divisor=0 to calculate EPS and THETA !!\n"));
519 PHY_DEBUG(("[CAL] ******************************************\n"));
520 break;
521 }
522
523 a_2 = (rot_i_b * 32768) / divisor;
524 b_2 = (rot_q_b * (-32768)) / divisor;
525 PHY_DEBUG(("[CAL] ***** EPSILON/2 = %d\n", a_2));
526 PHY_DEBUG(("[CAL] ***** THETA/2 = %d\n", b_2));
527
528 phw_data->iq_rsdl_gain_tx_d2 = a_2;
529 phw_data->iq_rsdl_phase_tx_d2 = b_2;
530
531 /* if ((abs(a_2) < 150) && (abs(b_2) < 100)) */
532 /* if ((abs(a_2) < 200) && (abs(b_2) < 200)) */
533 if ((abs(a_2) < a_2_threshold) && (abs(b_2) < b_2_threshold)) {
534 verify_count++;
535
536 PHY_DEBUG(("[CAL] ** <_tx_iq_calibration_loop> *************\n"));
537 PHY_DEBUG(("[CAL] ** VERIFY OK # %d !!\n", verify_count));
538 PHY_DEBUG(("[CAL] ******************************************\n"));
539
540 if (verify_count > 2) {
541 PHY_DEBUG(("[CAL] ** <_tx_iq_calibration_loop> *********\n"));
542 PHY_DEBUG(("[CAL] ** TX_IQ_CALIBRATION (EPS,THETA) OK !!\n"));
543 PHY_DEBUG(("[CAL] **************************************\n"));
544 return 0;
545 }
546
547 continue;
548 } else
549 verify_count = 0;
550
551 _sin_cos(b_2, &sin_b, &cos_b);
552 _sin_cos(b_2*2, &sin_2b, &cos_2b);
553 PHY_DEBUG(("[CAL] ** sin(b/2)=%d, cos(b/2)=%d\n", sin_b, cos_b));
554 PHY_DEBUG(("[CAL] ** sin(b)=%d, cos(b)=%d\n", sin_2b, cos_2b));
555
556 if (cos_2b == 0) {
557 PHY_DEBUG(("[CAL] ** <_tx_iq_calibration_loop> ERROR *******\n"));
558 PHY_DEBUG(("[CAL] ** cos(b)=0 !!\n"));
559 PHY_DEBUG(("[CAL] ******************************************\n"));
560 break;
561 }
562
563 /* 1280 * 32768 = 41943040 */
564 temp1 = (41943040/cos_2b)*cos_b;
565
566 /* temp2 = (41943040/cos_2b)*sin_b*(-1); */
567 if (phw_data->revision == 0x2002) /* 1st-cut */
568 temp2 = (41943040/cos_2b)*sin_b*(-1);
569 else /* 2nd-cut */
570 temp2 = (41943040*4/cos_2b)*sin_b*(-1);
571
572 tx_cal_flt_b[0] = _floor(temp1/(32768+a_2));
573 tx_cal_flt_b[1] = _floor(temp2/(32768+a_2));
574 tx_cal_flt_b[2] = _floor(temp2/(32768-a_2));
575 tx_cal_flt_b[3] = _floor(temp1/(32768-a_2));
576 PHY_DEBUG(("[CAL] ** tx_cal_flt_b[0] = %d\n", tx_cal_flt_b[0]));
577 PHY_DEBUG(("[CAL] tx_cal_flt_b[1] = %d\n", tx_cal_flt_b[1]));
578 PHY_DEBUG(("[CAL] tx_cal_flt_b[2] = %d\n", tx_cal_flt_b[2]));
579 PHY_DEBUG(("[CAL] tx_cal_flt_b[3] = %d\n", tx_cal_flt_b[3]));
580
581 tx_cal[2] = tx_cal_flt_b[2];
582 tx_cal[2] = tx_cal[2] + 3;
583 tx_cal[1] = tx_cal[2];
584 tx_cal[3] = tx_cal_flt_b[3] - 128;
585 tx_cal[0] = -tx_cal[3] + 1;
586
587 PHY_DEBUG(("[CAL] tx_cal[0] = %d\n", tx_cal[0]));
588 PHY_DEBUG(("[CAL] tx_cal[1] = %d\n", tx_cal[1]));
589 PHY_DEBUG(("[CAL] tx_cal[2] = %d\n", tx_cal[2]));
590 PHY_DEBUG(("[CAL] tx_cal[3] = %d\n", tx_cal[3]));
591
592 /* if ((tx_cal[0] == 0) && (tx_cal[1] == 0) &&
593 (tx_cal[2] == 0) && (tx_cal[3] == 0))
594 { */
595 /* PHY_DEBUG(("[CAL] ** <_tx_iq_calibration_loop> *************\n"));
596 * PHY_DEBUG(("[CAL] ** TX_IQ_CALIBRATION COMPLETE !!\n"));
597 * PHY_DEBUG(("[CAL] ******************************************\n"));
598 * return 0;
599 } */
600
601 /* g. */
602 if (phw_data->revision == 0x2002) /* 1st-cut */{
603 hw_get_dxx_reg(phw_data, 0x54, &val);
604 PHY_DEBUG(("[CAL] ** 0x54 = 0x%08X\n", val));
605 tx_cal_reg[0] = _s4_to_s32((val & 0xF0000000) >> 28);
606 tx_cal_reg[1] = _s4_to_s32((val & 0x0F000000) >> 24);
607 tx_cal_reg[2] = _s4_to_s32((val & 0x00F00000) >> 20);
608 tx_cal_reg[3] = _s4_to_s32((val & 0x000F0000) >> 16);
609 } else /* 2nd-cut */{
610 hw_get_dxx_reg(phw_data, 0x3C, &val);
611 PHY_DEBUG(("[CAL] ** 0x3C = 0x%08X\n", val));
612 tx_cal_reg[0] = _s5_to_s32((val & 0xF8000000) >> 27);
613 tx_cal_reg[1] = _s6_to_s32((val & 0x07E00000) >> 21);
614 tx_cal_reg[2] = _s6_to_s32((val & 0x001F8000) >> 15);
615 tx_cal_reg[3] = _s5_to_s32((val & 0x00007C00) >> 10);
616
617 }
618
619 PHY_DEBUG(("[CAL] ** tx_cal_reg[0] = %d\n", tx_cal_reg[0]));
620 PHY_DEBUG(("[CAL] tx_cal_reg[1] = %d\n", tx_cal_reg[1]));
621 PHY_DEBUG(("[CAL] tx_cal_reg[2] = %d\n", tx_cal_reg[2]));
622 PHY_DEBUG(("[CAL] tx_cal_reg[3] = %d\n", tx_cal_reg[3]));
623
624 if (phw_data->revision == 0x2002) /* 1st-cut */{
625 if (((tx_cal_reg[0] == 7) || (tx_cal_reg[0] == (-8))) &&
626 ((tx_cal_reg[3] == 7) || (tx_cal_reg[3] == (-8)))) {
627 PHY_DEBUG(("[CAL] ** <_tx_iq_calibration_loop> *********\n"));
628 PHY_DEBUG(("[CAL] ** TX_IQ_CALIBRATION SATUATION !!\n"));
629 PHY_DEBUG(("[CAL] **************************************\n"));
630 break;
631 }
632 } else /* 2nd-cut */{
633 if (((tx_cal_reg[0] == 31) || (tx_cal_reg[0] == (-32))) &&
634 ((tx_cal_reg[3] == 31) || (tx_cal_reg[3] == (-32)))) {
635 PHY_DEBUG(("[CAL] ** <_tx_iq_calibration_loop> *********\n"));
636 PHY_DEBUG(("[CAL] ** TX_IQ_CALIBRATION SATUATION !!\n"));
637 PHY_DEBUG(("[CAL] **************************************\n"));
638 break;
639 }
640 }
641
642 tx_cal[0] = tx_cal[0] + tx_cal_reg[0];
643 tx_cal[1] = tx_cal[1] + tx_cal_reg[1];
644 tx_cal[2] = tx_cal[2] + tx_cal_reg[2];
645 tx_cal[3] = tx_cal[3] + tx_cal_reg[3];
646 PHY_DEBUG(("[CAL] ** apply tx_cal[0] = %d\n", tx_cal[0]));
647 PHY_DEBUG(("[CAL] apply tx_cal[1] = %d\n", tx_cal[1]));
648 PHY_DEBUG(("[CAL] apply tx_cal[2] = %d\n", tx_cal[2]));
649 PHY_DEBUG(("[CAL] apply tx_cal[3] = %d\n", tx_cal[3]));
650
651 if (phw_data->revision == 0x2002) /* 1st-cut */{
652 val &= 0x0000FFFF;
653 val |= ((_s32_to_s4(tx_cal[0]) << 28)|
654 (_s32_to_s4(tx_cal[1]) << 24)|
655 (_s32_to_s4(tx_cal[2]) << 20)|
656 (_s32_to_s4(tx_cal[3]) << 16));
657 hw_set_dxx_reg(phw_data, 0x54, val);
658 PHY_DEBUG(("[CAL] ** CALIB_DATA = 0x%08X\n", val));
659 return 0;
660 } else /* 2nd-cut */{
661 val &= 0x000003FF;
662 val |= ((_s32_to_s5(tx_cal[0]) << 27)|
663 (_s32_to_s6(tx_cal[1]) << 21)|
664 (_s32_to_s6(tx_cal[2]) << 15)|
665 (_s32_to_s5(tx_cal[3]) << 10));
666 hw_set_dxx_reg(phw_data, 0x3C, val);
667 PHY_DEBUG(("[CAL] ** TX_IQ_CALIBRATION = 0x%08X\n", val));
668 return 0;
669 }
670
671 /* i. Set "calib_start" to 0x0 */
672 reg_mode_ctrl &= ~MASK_CALIB_START;
673 hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl);
674 PHY_DEBUG(("[CAL] MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl));
675
676 loop--;
677 }
678
679 return 1;
680 }
681
682 static void _tx_iq_calibration_winbond(struct hw_data *phw_data)
683 {
684 u32 reg_agc_ctrl3;
685 #ifdef _DEBUG
686 s32 tx_cal_reg[4];
687
688 #endif
689 u32 reg_mode_ctrl;
690 u32 val;
691 u8 result;
692
693 PHY_DEBUG(("[CAL] -> [4]_tx_iq_calibration()\n"));
694
695 /* 0x01 0xEE3FC2 ; 3B8FF ; Calibration (6a). enable TX IQ calibration loop circuits */
696 phy_set_rf_data(phw_data, 1, (1<<24)|0xEE3FC2);
697 /* 0x0B 0x1905D6 ; 06417 ; Calibration (6b). enable TX I/Q cal loop squaring circuit */
698 phy_set_rf_data(phw_data, 11, (11<<24)|0x19BDD6); /* 20060612.1.a 0x1905D6); */
699 /* 0x05 0x24C60A ; 09318 ; Calibration (6c). setting TX-VGA gain: TXGCH=2 & GPK=110 --> to be optimized */
700 phy_set_rf_data(phw_data, 5, (5<<24)|0x24C60A); /* 0x24C60A (high temperature) */
701 /* 0x06 0x06880C ; 01A20 ; Calibration (6d). RXGCH=00; RXGCL=100 000 (RXVGA=32) --> to be optimized */
702 phy_set_rf_data(phw_data, 6, (6<<24)|0x34880C); /* 20060612.1.a 0x06890C); */
703 /* 0x00 0xFDF1C0 ; 3F7C7 ; Calibration (6e). turn on IQ imbalance/Test mode */
704 phy_set_rf_data(phw_data, 0, (0<<24)|0xFDF1C0);
705 /* ; [BB-chip]: Calibration (6f).Send test pattern */
706 /* ; [BB-chip]: Calibration (6g). Search RXGCL optimal value */
707 /* ; [BB-chip]: Calibration (6h). Calculate TX-path IQ imbalance and setting TX path IQ compensation table */
708 /* phy_set_rf_data(phw_data, 3, (3<<24)|0x025586); */
709
710 msleep(30); /* 20060612.1.a 30ms delay. Add the follow 2 lines */
711 /* To adjust TXVGA to fit iq_mag_0 range from 1250 ~ 1750 */
712 adjust_TXVGA_for_iq_mag(phw_data);
713
714 /* a. Disable AGC */
715 hw_get_dxx_reg(phw_data, REG_AGC_CTRL3, &reg_agc_ctrl3);
716 reg_agc_ctrl3 &= ~BIT(2);
717 reg_agc_ctrl3 |= (MASK_LNA_FIX_GAIN|MASK_AGC_FIX);
718 hw_set_dxx_reg(phw_data, REG_AGC_CTRL3, reg_agc_ctrl3);
719
720 hw_get_dxx_reg(phw_data, REG_AGC_CTRL5, &val);
721 val |= MASK_AGC_FIX_GAIN;
722 hw_set_dxx_reg(phw_data, REG_AGC_CTRL5, val);
723
724 result = _tx_iq_calibration_loop_winbond(phw_data, 150, 100);
725
726 if (result > 0) {
727 if (phw_data->revision == 0x2002) /* 1st-cut */{
728 hw_get_dxx_reg(phw_data, 0x54, &val);
729 val &= 0x0000FFFF;
730 hw_set_dxx_reg(phw_data, 0x54, val);
731 } else /* 2nd-cut*/{
732 hw_get_dxx_reg(phw_data, 0x3C, &val);
733 val &= 0x000003FF;
734 hw_set_dxx_reg(phw_data, 0x3C, val);
735 }
736
737 result = _tx_iq_calibration_loop_winbond(phw_data, 300, 200);
738
739 if (result > 0) {
740 if (phw_data->revision == 0x2002) /* 1st-cut */{
741 hw_get_dxx_reg(phw_data, 0x54, &val);
742 val &= 0x0000FFFF;
743 hw_set_dxx_reg(phw_data, 0x54, val);
744 } else /* 2nd-cut*/{
745 hw_get_dxx_reg(phw_data, 0x3C, &val);
746 val &= 0x000003FF;
747 hw_set_dxx_reg(phw_data, 0x3C, val);
748 }
749
750 result = _tx_iq_calibration_loop_winbond(phw_data, 500, 400);
751 if (result > 0) {
752 if (phw_data->revision == 0x2002) /* 1st-cut */{
753 hw_get_dxx_reg(phw_data, 0x54, &val);
754 val &= 0x0000FFFF;
755 hw_set_dxx_reg(phw_data, 0x54, val);
756 } else /* 2nd-cut */{
757 hw_get_dxx_reg(phw_data, 0x3C, &val);
758 val &= 0x000003FF;
759 hw_set_dxx_reg(phw_data, 0x3C, val);
760 }
761
762
763 result = _tx_iq_calibration_loop_winbond(phw_data, 700, 500);
764
765 if (result > 0) {
766 PHY_DEBUG(("[CAL] ** <_tx_iq_calibration> **************\n"));
767 PHY_DEBUG(("[CAL] ** TX_IQ_CALIBRATION FAILURE !!\n"));
768 PHY_DEBUG(("[CAL] **************************************\n"));
769
770 if (phw_data->revision == 0x2002) /* 1st-cut */{
771 hw_get_dxx_reg(phw_data, 0x54, &val);
772 val &= 0x0000FFFF;
773 hw_set_dxx_reg(phw_data, 0x54, val);
774 } else /* 2nd-cut */{
775 hw_get_dxx_reg(phw_data, 0x3C, &val);
776 val &= 0x000003FF;
777 hw_set_dxx_reg(phw_data, 0x3C, val);
778 }
779 }
780 }
781 }
782 }
783
784 /* i. Set "calib_start" to 0x0 */
785 hw_get_dxx_reg(phw_data, REG_MODE_CTRL, &reg_mode_ctrl);
786 reg_mode_ctrl &= ~MASK_CALIB_START;
787 hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl);
788 PHY_DEBUG(("[CAL] MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl));
789
790 /* g. Enable AGC */
791 /* hw_get_dxx_reg(phw_data, REG_AGC_CTRL3, &val); */
792 reg_agc_ctrl3 |= BIT(2);
793 reg_agc_ctrl3 &= ~(MASK_LNA_FIX_GAIN|MASK_AGC_FIX);
794 hw_set_dxx_reg(phw_data, REG_AGC_CTRL3, reg_agc_ctrl3);
795
796 #ifdef _DEBUG
797 if (phw_data->revision == 0x2002) /* 1st-cut */{
798 hw_get_dxx_reg(phw_data, 0x54, &val);
799 PHY_DEBUG(("[CAL] ** 0x54 = 0x%08X\n", val));
800 tx_cal_reg[0] = _s4_to_s32((val & 0xF0000000) >> 28);
801 tx_cal_reg[1] = _s4_to_s32((val & 0x0F000000) >> 24);
802 tx_cal_reg[2] = _s4_to_s32((val & 0x00F00000) >> 20);
803 tx_cal_reg[3] = _s4_to_s32((val & 0x000F0000) >> 16);
804 } else /* 2nd-cut */ {
805 hw_get_dxx_reg(phw_data, 0x3C, &val);
806 PHY_DEBUG(("[CAL] ** 0x3C = 0x%08X\n", val));
807 tx_cal_reg[0] = _s5_to_s32((val & 0xF8000000) >> 27);
808 tx_cal_reg[1] = _s6_to_s32((val & 0x07E00000) >> 21);
809 tx_cal_reg[2] = _s6_to_s32((val & 0x001F8000) >> 15);
810 tx_cal_reg[3] = _s5_to_s32((val & 0x00007C00) >> 10);
811
812 }
813
814 PHY_DEBUG(("[CAL] ** tx_cal_reg[0] = %d\n", tx_cal_reg[0]));
815 PHY_DEBUG(("[CAL] tx_cal_reg[1] = %d\n", tx_cal_reg[1]));
816 PHY_DEBUG(("[CAL] tx_cal_reg[2] = %d\n", tx_cal_reg[2]));
817 PHY_DEBUG(("[CAL] tx_cal_reg[3] = %d\n", tx_cal_reg[3]));
818 #endif
819
820
821 /*
822 * for test - BEN
823 * RF Control Override
824 */
825 }
826
827 /*****************************************************/
828 static u8 _rx_iq_calibration_loop_winbond(struct hw_data *phw_data, u16 factor, u32 frequency)
829 {
830 u32 reg_mode_ctrl;
831 s32 iqcal_tone_i;
832 s32 iqcal_tone_q;
833 s32 iqcal_image_i;
834 s32 iqcal_image_q;
835 s32 rot_tone_i_b;
836 s32 rot_tone_q_b;
837 s32 rot_image_i_b;
838 s32 rot_image_q_b;
839 s32 rx_cal_flt_b[4];
840 s32 rx_cal[4];
841 s32 rx_cal_reg[4];
842 s32 a_2, b_2;
843 s32 sin_b, sin_2b;
844 s32 cos_b, cos_2b;
845 s32 temp1, temp2;
846 u32 val;
847 u16 loop;
848
849 u32 pwr_tone;
850 u32 pwr_image;
851 u8 verify_count;
852
853 s32 iqcal_tone_i_avg, iqcal_tone_q_avg;
854 s32 iqcal_image_i_avg, iqcal_image_q_avg;
855 u16 capture_time;
856
857 PHY_DEBUG(("[CAL] -> [5]_rx_iq_calibration_loop()\n"));
858 PHY_DEBUG(("[CAL] ** factor = %d\n", factor));
859
860 hw_set_dxx_reg(phw_data, 0x58, 0x44444444); /* IQ_Alpha */
861
862 /* b. */
863
864 hw_get_dxx_reg(phw_data, REG_MODE_CTRL, &reg_mode_ctrl);
865 PHY_DEBUG(("[CAL] MODE_CTRL (read) = 0x%08X\n", reg_mode_ctrl));
866
867 verify_count = 0;
868
869 /* for (loop = 0; loop < 1; loop++) */
870 /* for (loop = 0; loop < LOOP_TIMES; loop++) */
871 loop = LOOP_TIMES;
872 while (loop > 0) {
873 PHY_DEBUG(("[CAL] [%d.] <_rx_iq_calibration_loop>\n",
874 (LOOP_TIMES-loop+1)));
875 iqcal_tone_i_avg = 0;
876 iqcal_tone_q_avg = 0;
877 iqcal_image_i_avg = 0;
878 iqcal_image_q_avg = 0;
879 capture_time = 0;
880
881 for (capture_time = 0; capture_time < 10; capture_time++) {
882 /* i. Set "calib_start" to 0x0 */
883 reg_mode_ctrl &= ~MASK_CALIB_START;
884 if (!hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl))/*20060718.1 modify */
885 return 0;
886 PHY_DEBUG(("[CAL] MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl));
887
888 reg_mode_ctrl &= ~MASK_IQCAL_MODE;
889 reg_mode_ctrl |= (MASK_CALIB_START|0x1);
890 hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl);
891 PHY_DEBUG(("[CAL] MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl));
892
893 /* c. */
894 hw_get_dxx_reg(phw_data, REG_CALIB_READ1, &val);
895 PHY_DEBUG(("[CAL] CALIB_READ1 = 0x%08X\n", val));
896
897 iqcal_tone_i = _s13_to_s32(val & 0x00001FFF);
898 iqcal_tone_q = _s13_to_s32((val & 0x03FFE000) >> 13);
899 PHY_DEBUG(("[CAL] ** iqcal_tone_i = %d, iqcal_tone_q = %d\n",
900 iqcal_tone_i, iqcal_tone_q));
901
902 hw_get_dxx_reg(phw_data, REG_CALIB_READ2, &val);
903 PHY_DEBUG(("[CAL] CALIB_READ2 = 0x%08X\n", val));
904
905 iqcal_image_i = _s13_to_s32(val & 0x00001FFF);
906 iqcal_image_q = _s13_to_s32((val & 0x03FFE000) >> 13);
907 PHY_DEBUG(("[CAL] ** iqcal_image_i = %d, iqcal_image_q = %d\n",
908 iqcal_image_i, iqcal_image_q));
909 if (capture_time == 0)
910 continue;
911 else {
912 iqcal_image_i_avg = (iqcal_image_i_avg*(capture_time-1) + iqcal_image_i)/capture_time;
913 iqcal_image_q_avg = (iqcal_image_q_avg*(capture_time-1) + iqcal_image_q)/capture_time;
914 iqcal_tone_i_avg = (iqcal_tone_i_avg*(capture_time-1) + iqcal_tone_i)/capture_time;
915 iqcal_tone_q_avg = (iqcal_tone_q_avg*(capture_time-1) + iqcal_tone_q)/capture_time;
916 }
917 }
918
919
920 iqcal_image_i = iqcal_image_i_avg;
921 iqcal_image_q = iqcal_image_q_avg;
922 iqcal_tone_i = iqcal_tone_i_avg;
923 iqcal_tone_q = iqcal_tone_q_avg;
924
925 /* d. */
926 rot_tone_i_b = (iqcal_tone_i * iqcal_tone_i +
927 iqcal_tone_q * iqcal_tone_q) / 1024;
928 rot_tone_q_b = (iqcal_tone_i * iqcal_tone_q * (-1) +
929 iqcal_tone_q * iqcal_tone_i) / 1024;
930 rot_image_i_b = (iqcal_image_i * iqcal_tone_i -
931 iqcal_image_q * iqcal_tone_q) / 1024;
932 rot_image_q_b = (iqcal_image_i * iqcal_tone_q +
933 iqcal_image_q * iqcal_tone_i) / 1024;
934
935 PHY_DEBUG(("[CAL] ** rot_tone_i_b = %d\n", rot_tone_i_b));
936 PHY_DEBUG(("[CAL] ** rot_tone_q_b = %d\n", rot_tone_q_b));
937 PHY_DEBUG(("[CAL] ** rot_image_i_b = %d\n", rot_image_i_b));
938 PHY_DEBUG(("[CAL] ** rot_image_q_b = %d\n", rot_image_q_b));
939
940 /* f. */
941 if (rot_tone_i_b == 0) {
942 PHY_DEBUG(("[CAL] ** <_rx_iq_calibration_loop> ERROR *******\n"));
943 PHY_DEBUG(("[CAL] ** rot_tone_i_b=0 to calculate EPS and THETA !!\n"));
944 PHY_DEBUG(("[CAL] ******************************************\n"));
945 break;
946 }
947
948 a_2 = (rot_image_i_b * 32768) / rot_tone_i_b -
949 phw_data->iq_rsdl_gain_tx_d2;
950 b_2 = (rot_image_q_b * 32768) / rot_tone_i_b -
951 phw_data->iq_rsdl_phase_tx_d2;
952
953 PHY_DEBUG(("[CAL] ** iq_rsdl_gain_tx_d2 = %d\n",
954 phw_data->iq_rsdl_gain_tx_d2));
955 PHY_DEBUG(("[CAL] ** iq_rsdl_phase_tx_d2= %d\n",
956 phw_data->iq_rsdl_phase_tx_d2));
957 PHY_DEBUG(("[CAL] ***** EPSILON/2 = %d\n", a_2));
958 PHY_DEBUG(("[CAL] ***** THETA/2 = %d\n", b_2));
959
960 _sin_cos(b_2, &sin_b, &cos_b);
961 _sin_cos(b_2*2, &sin_2b, &cos_2b);
962 PHY_DEBUG(("[CAL] ** sin(b/2)=%d, cos(b/2)=%d\n", sin_b, cos_b));
963 PHY_DEBUG(("[CAL] ** sin(b)=%d, cos(b)=%d\n", sin_2b, cos_2b));
964
965 if (cos_2b == 0) {
966 PHY_DEBUG(("[CAL] ** <_rx_iq_calibration_loop> ERROR *******\n"));
967 PHY_DEBUG(("[CAL] ** cos(b)=0 !!\n"));
968 PHY_DEBUG(("[CAL] ******************************************\n"));
969 break;
970 }
971
972 /* 1280 * 32768 = 41943040 */
973 temp1 = (41943040/cos_2b)*cos_b;
974
975 /* temp2 = (41943040/cos_2b)*sin_b*(-1); */
976 if (phw_data->revision == 0x2002)/* 1st-cut */
977 temp2 = (41943040/cos_2b)*sin_b*(-1);
978 else/* 2nd-cut */
979 temp2 = (41943040*4/cos_2b)*sin_b*(-1);
980
981 rx_cal_flt_b[0] = _floor(temp1/(32768+a_2));
982 rx_cal_flt_b[1] = _floor(temp2/(32768-a_2));
983 rx_cal_flt_b[2] = _floor(temp2/(32768+a_2));
984 rx_cal_flt_b[3] = _floor(temp1/(32768-a_2));
985
986 PHY_DEBUG(("[CAL] ** rx_cal_flt_b[0] = %d\n", rx_cal_flt_b[0]));
987 PHY_DEBUG(("[CAL] rx_cal_flt_b[1] = %d\n", rx_cal_flt_b[1]));
988 PHY_DEBUG(("[CAL] rx_cal_flt_b[2] = %d\n", rx_cal_flt_b[2]));
989 PHY_DEBUG(("[CAL] rx_cal_flt_b[3] = %d\n", rx_cal_flt_b[3]));
990
991 rx_cal[0] = rx_cal_flt_b[0] - 128;
992 rx_cal[1] = rx_cal_flt_b[1];
993 rx_cal[2] = rx_cal_flt_b[2];
994 rx_cal[3] = rx_cal_flt_b[3] - 128;
995 PHY_DEBUG(("[CAL] ** rx_cal[0] = %d\n", rx_cal[0]));
996 PHY_DEBUG(("[CAL] rx_cal[1] = %d\n", rx_cal[1]));
997 PHY_DEBUG(("[CAL] rx_cal[2] = %d\n", rx_cal[2]));
998 PHY_DEBUG(("[CAL] rx_cal[3] = %d\n", rx_cal[3]));
999
1000 /* e. */
1001 pwr_tone = (iqcal_tone_i*iqcal_tone_i + iqcal_tone_q*iqcal_tone_q);
1002 pwr_image = (iqcal_image_i*iqcal_image_i +
1003 iqcal_image_q*iqcal_image_q)*factor;
1004
1005 PHY_DEBUG(("[CAL] ** pwr_tone = %d\n", pwr_tone));
1006 PHY_DEBUG(("[CAL] ** pwr_image = %d\n", pwr_image));
1007
1008 if (pwr_tone > pwr_image) {
1009 verify_count++;
1010
1011 PHY_DEBUG(("[CAL] ** <_rx_iq_calibration_loop> *************\n"));
1012 PHY_DEBUG(("[CAL] ** VERIFY OK # %d !!\n", verify_count));
1013 PHY_DEBUG(("[CAL] ******************************************\n"));
1014
1015 if (verify_count > 2) {
1016 PHY_DEBUG(("[CAL] ** <_rx_iq_calibration_loop> *********\n"));
1017 PHY_DEBUG(("[CAL] ** RX_IQ_CALIBRATION OK !!\n"));
1018 PHY_DEBUG(("[CAL] **************************************\n"));
1019 return 0;
1020 }
1021
1022 continue;
1023 }
1024 /* g. */
1025 hw_get_dxx_reg(phw_data, 0x54, &val);
1026 PHY_DEBUG(("[CAL] ** 0x54 = 0x%08X\n", val));
1027
1028 if (phw_data->revision == 0x2002) /* 1st-cut */{
1029 rx_cal_reg[0] = _s4_to_s32((val & 0x0000F000) >> 12);
1030 rx_cal_reg[1] = _s4_to_s32((val & 0x00000F00) >> 8);
1031 rx_cal_reg[2] = _s4_to_s32((val & 0x000000F0) >> 4);
1032 rx_cal_reg[3] = _s4_to_s32((val & 0x0000000F));
1033 } else /* 2nd-cut */{
1034 rx_cal_reg[0] = _s5_to_s32((val & 0xF8000000) >> 27);
1035 rx_cal_reg[1] = _s6_to_s32((val & 0x07E00000) >> 21);
1036 rx_cal_reg[2] = _s6_to_s32((val & 0x001F8000) >> 15);
1037 rx_cal_reg[3] = _s5_to_s32((val & 0x00007C00) >> 10);
1038 }
1039
1040 PHY_DEBUG(("[CAL] ** rx_cal_reg[0] = %d\n", rx_cal_reg[0]));
1041 PHY_DEBUG(("[CAL] rx_cal_reg[1] = %d\n", rx_cal_reg[1]));
1042 PHY_DEBUG(("[CAL] rx_cal_reg[2] = %d\n", rx_cal_reg[2]));
1043 PHY_DEBUG(("[CAL] rx_cal_reg[3] = %d\n", rx_cal_reg[3]));
1044
1045 if (phw_data->revision == 0x2002) /* 1st-cut */{
1046 if (((rx_cal_reg[0] == 7) || (rx_cal_reg[0] == (-8))) &&
1047 ((rx_cal_reg[3] == 7) || (rx_cal_reg[3] == (-8)))) {
1048 PHY_DEBUG(("[CAL] ** <_rx_iq_calibration_loop> *********\n"));
1049 PHY_DEBUG(("[CAL] ** RX_IQ_CALIBRATION SATUATION !!\n"));
1050 PHY_DEBUG(("[CAL] **************************************\n"));
1051 break;
1052 }
1053 } else /* 2nd-cut */{
1054 if (((rx_cal_reg[0] == 31) || (rx_cal_reg[0] == (-32))) &&
1055 ((rx_cal_reg[3] == 31) || (rx_cal_reg[3] == (-32)))) {
1056 PHY_DEBUG(("[CAL] ** <_rx_iq_calibration_loop> *********\n"));
1057 PHY_DEBUG(("[CAL] ** RX_IQ_CALIBRATION SATUATION !!\n"));
1058 PHY_DEBUG(("[CAL] **************************************\n"));
1059 break;
1060 }
1061 }
1062
1063 rx_cal[0] = rx_cal[0] + rx_cal_reg[0];
1064 rx_cal[1] = rx_cal[1] + rx_cal_reg[1];
1065 rx_cal[2] = rx_cal[2] + rx_cal_reg[2];
1066 rx_cal[3] = rx_cal[3] + rx_cal_reg[3];
1067 PHY_DEBUG(("[CAL] ** apply rx_cal[0] = %d\n", rx_cal[0]));
1068 PHY_DEBUG(("[CAL] apply rx_cal[1] = %d\n", rx_cal[1]));
1069 PHY_DEBUG(("[CAL] apply rx_cal[2] = %d\n", rx_cal[2]));
1070 PHY_DEBUG(("[CAL] apply rx_cal[3] = %d\n", rx_cal[3]));
1071
1072 hw_get_dxx_reg(phw_data, 0x54, &val);
1073 if (phw_data->revision == 0x2002) /* 1st-cut */{
1074 val &= 0x0000FFFF;
1075 val |= ((_s32_to_s4(rx_cal[0]) << 12)|
1076 (_s32_to_s4(rx_cal[1]) << 8)|
1077 (_s32_to_s4(rx_cal[2]) << 4)|
1078 (_s32_to_s4(rx_cal[3])));
1079 hw_set_dxx_reg(phw_data, 0x54, val);
1080 } else /* 2nd-cut */{
1081 val &= 0x000003FF;
1082 val |= ((_s32_to_s5(rx_cal[0]) << 27)|
1083 (_s32_to_s6(rx_cal[1]) << 21)|
1084 (_s32_to_s6(rx_cal[2]) << 15)|
1085 (_s32_to_s5(rx_cal[3]) << 10));
1086 hw_set_dxx_reg(phw_data, 0x54, val);
1087
1088 if (loop == 3)
1089 return 0;
1090 }
1091 PHY_DEBUG(("[CAL] ** CALIB_DATA = 0x%08X\n", val));
1092
1093 loop--;
1094 }
1095
1096 return 1;
1097 }
1098
1099 /*************************************************/
1100
1101 /***************************************************************/
1102 static void _rx_iq_calibration_winbond(struct hw_data *phw_data, u32 frequency)
1103 {
1104 /* figo 20050523 marked this flag for can't compile for release */
1105 #ifdef _DEBUG
1106 s32 rx_cal_reg[4];
1107 u32 val;
1108 #endif
1109
1110 u8 result;
1111
1112 PHY_DEBUG(("[CAL] -> [5]_rx_iq_calibration()\n"));
1113 /* a. Set RFIC to "RX calibration mode" */
1114 /* ; ----- Calibration (7). RX path IQ imbalance calibration loop */
1115 /* 0x01 0xFFBFC2 ; 3FEFF ; Calibration (7a). enable RX IQ calibration loop circuits */
1116 phy_set_rf_data(phw_data, 1, (1<<24)|0xEFBFC2);
1117 /* 0x0B 0x1A01D6 ; 06817 ; Calibration (7b). enable RX I/Q cal loop SW1 circuits */
1118 phy_set_rf_data(phw_data, 11, (11<<24)|0x1A05D6);
1119 /* 0x05 0x24848A ; 09212 ; Calibration (7c). setting TX-VGA gain (TXGCH) to 2 --> to be optimized */
1120 phy_set_rf_data(phw_data, 5, (5<<24) | phw_data->txvga_setting_for_cal);
1121 /* 0x06 0x06840C ; 01A10 ; Calibration (7d). RXGCH=00; RXGCL=010 000 (RXVGA) --> to be optimized */
1122 phy_set_rf_data(phw_data, 6, (6<<24)|0x06834C);
1123 /* 0x00 0xFFF1C0 ; 3F7C7 ; Calibration (7e). turn on IQ imbalance/Test mode */
1124 phy_set_rf_data(phw_data, 0, (0<<24)|0xFFF1C0);
1125
1126 /* ; [BB-chip]: Calibration (7f). Send test pattern */
1127 /* ; [BB-chip]: Calibration (7g). Search RXGCL optimal value */
1128 /* ; [BB-chip]: Calibration (7h). Calculate RX-path IQ imbalance and setting RX path IQ compensation table */
1129
1130 result = _rx_iq_calibration_loop_winbond(phw_data, 12589, frequency);
1131
1132 if (result > 0) {
1133 _reset_rx_cal(phw_data);
1134 result = _rx_iq_calibration_loop_winbond(phw_data, 7943, frequency);
1135
1136 if (result > 0) {
1137 _reset_rx_cal(phw_data);
1138 result = _rx_iq_calibration_loop_winbond(phw_data, 5011, frequency);
1139
1140 if (result > 0) {
1141 PHY_DEBUG(("[CAL] ** <_rx_iq_calibration> **************\n"));
1142 PHY_DEBUG(("[CAL] ** RX_IQ_CALIBRATION FAILURE !!\n"));
1143 PHY_DEBUG(("[CAL] **************************************\n"));
1144 _reset_rx_cal(phw_data);
1145 }
1146 }
1147 }
1148
1149 #ifdef _DEBUG
1150 hw_get_dxx_reg(phw_data, 0x54, &val);
1151 PHY_DEBUG(("[CAL] ** 0x54 = 0x%08X\n", val));
1152
1153 if (phw_data->revision == 0x2002) /* 1st-cut */{
1154 rx_cal_reg[0] = _s4_to_s32((val & 0x0000F000) >> 12);
1155 rx_cal_reg[1] = _s4_to_s32((val & 0x00000F00) >> 8);
1156 rx_cal_reg[2] = _s4_to_s32((val & 0x000000F0) >> 4);
1157 rx_cal_reg[3] = _s4_to_s32((val & 0x0000000F));
1158 } else /* 2nd-cut */{
1159 rx_cal_reg[0] = _s5_to_s32((val & 0xF8000000) >> 27);
1160 rx_cal_reg[1] = _s6_to_s32((val & 0x07E00000) >> 21);
1161 rx_cal_reg[2] = _s6_to_s32((val & 0x001F8000) >> 15);
1162 rx_cal_reg[3] = _s5_to_s32((val & 0x00007C00) >> 10);
1163 }
1164
1165 PHY_DEBUG(("[CAL] ** rx_cal_reg[0] = %d\n", rx_cal_reg[0]));
1166 PHY_DEBUG(("[CAL] rx_cal_reg[1] = %d\n", rx_cal_reg[1]));
1167 PHY_DEBUG(("[CAL] rx_cal_reg[2] = %d\n", rx_cal_reg[2]));
1168 PHY_DEBUG(("[CAL] rx_cal_reg[3] = %d\n", rx_cal_reg[3]));
1169 #endif
1170
1171 }
1172
1173 /*******************************************************/
1174 void phy_calibration_winbond(struct hw_data *phw_data, u32 frequency)
1175 {
1176 u32 reg_mode_ctrl;
1177 u32 iq_alpha;
1178
1179 PHY_DEBUG(("[CAL] -> phy_calibration_winbond()\n"));
1180
1181 hw_get_dxx_reg(phw_data, 0x58, &iq_alpha);
1182
1183 _rxadc_dc_offset_cancellation_winbond(phw_data, frequency);
1184 /* _txidac_dc_offset_cancellation_winbond(phw_data); */
1185 /* _txqdac_dc_offset_cancellation_winbond(phw_data); */
1186
1187 _tx_iq_calibration_winbond(phw_data);
1188 _rx_iq_calibration_winbond(phw_data, frequency);
1189
1190 /*********************************************************************/
1191 hw_get_dxx_reg(phw_data, REG_MODE_CTRL, &reg_mode_ctrl);
1192 reg_mode_ctrl &= ~(MASK_IQCAL_TONE_SEL|MASK_IQCAL_MODE|MASK_CALIB_START); /* set when finish */
1193 hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl);
1194 PHY_DEBUG(("[CAL] MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl));
1195
1196 /* i. Set RFIC to "Normal mode" */
1197 hw_set_dxx_reg(phw_data, 0x58, iq_alpha);
1198
1199 /*********************************************************************/
1200 phy_init_rf(phw_data);
1201
1202 }
1203
1204 /******************/
1205 void phy_set_rf_data(struct hw_data *pHwData, u32 index, u32 value)
1206 {
1207 u32 ltmp = 0;
1208
1209 switch (pHwData->phy_type) {
1210 case RF_MAXIM_2825:
1211 case RF_MAXIM_V1: /* 11g Winbond 2nd BB(with Phy board (v1) + Maxim 331) */
1212 ltmp = (1 << 31) | (0 << 30) | (18 << 24) | BitReverse(value, 18);
1213 break;
1214
1215 case RF_MAXIM_2827:
1216 ltmp = (1 << 31) | (0 << 30) | (18 << 24) | BitReverse(value, 18);
1217 break;
1218
1219 case RF_MAXIM_2828:
1220 ltmp = (1 << 31) | (0 << 30) | (18 << 24) | BitReverse(value, 18);
1221 break;
1222
1223 case RF_MAXIM_2829:
1224 ltmp = (1 << 31) | (0 << 30) | (18 << 24) | BitReverse(value, 18);
1225 break;
1226
1227 case RF_AIROHA_2230:
1228 case RF_AIROHA_2230S: /* 20060420 Add this */
1229 ltmp = (1 << 31) | (0 << 30) | (20 << 24) | BitReverse(value, 20);
1230 break;
1231
1232 case RF_AIROHA_7230:
1233 ltmp = (1 << 31) | (0 << 30) | (24 << 24) | (value&0xffffff);
1234 break;
1235
1236 case RF_WB_242:
1237 case RF_WB_242_1:/* 20060619.5 Add */
1238 ltmp = (1 << 31) | (0 << 30) | (24 << 24) | BitReverse(value, 24);
1239 break;
1240 }
1241
1242 Wb35Reg_WriteSync(pHwData, 0x0864, ltmp);
1243 }
1244
1245 /* 20060717 modify as Bruce's mail */
1246 unsigned char adjust_TXVGA_for_iq_mag(struct hw_data *phw_data)
1247 {
1248 int init_txvga = 0;
1249 u32 reg_mode_ctrl;
1250 u32 val;
1251 s32 iqcal_tone_i0;
1252 s32 iqcal_tone_q0;
1253 u32 sqsum;
1254 s32 iq_mag_0_tx;
1255 u8 reg_state;
1256 int current_txvga;
1257
1258
1259 reg_state = 0;
1260 for (init_txvga = 0; init_txvga < 10; init_txvga++) {
1261 current_txvga = (0x24C40A|(init_txvga<<6));
1262 phy_set_rf_data(phw_data, 5, ((5<<24)|current_txvga));
1263 phw_data->txvga_setting_for_cal = current_txvga;
1264
1265 msleep(30);/* 20060612.1.a */
1266
1267 if (!hw_get_dxx_reg(phw_data, REG_MODE_CTRL, &reg_mode_ctrl))/* 20060718.1 modify */
1268 return false;
1269
1270 PHY_DEBUG(("[CAL] MODE_CTRL (read) = 0x%08X\n", reg_mode_ctrl));
1271
1272 /*
1273 * a. Set iqcal_mode[1:0] to 0x2 and set "calib_start" to 0x1 to
1274 * enable "IQ alibration Mode II"
1275 */
1276 reg_mode_ctrl &= ~(MASK_IQCAL_TONE_SEL|MASK_IQCAL_MODE);
1277 reg_mode_ctrl &= ~MASK_IQCAL_MODE;
1278 reg_mode_ctrl |= (MASK_CALIB_START|0x02);
1279 reg_mode_ctrl |= (MASK_CALIB_START|0x02|2<<2);
1280 hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl);
1281 PHY_DEBUG(("[CAL] MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl));
1282
1283 udelay(1);/* 20060612.1.a */
1284
1285 udelay(300);/* 20060612.1.a */
1286
1287 /* b. */
1288 hw_get_dxx_reg(phw_data, REG_CALIB_READ1, &val);
1289
1290 PHY_DEBUG(("[CAL] CALIB_READ1 = 0x%08X\n", val));
1291 udelay(300);/* 20060612.1.a */
1292
1293 iqcal_tone_i0 = _s13_to_s32(val & 0x00001FFF);
1294 iqcal_tone_q0 = _s13_to_s32((val & 0x03FFE000) >> 13);
1295 PHY_DEBUG(("[CAL] ** iqcal_tone_i0=%d, iqcal_tone_q0=%d\n",
1296 iqcal_tone_i0, iqcal_tone_q0));
1297
1298 sqsum = iqcal_tone_i0*iqcal_tone_i0 + iqcal_tone_q0*iqcal_tone_q0;
1299 iq_mag_0_tx = (s32) _sqrt(sqsum);
1300 PHY_DEBUG(("[CAL] ** auto_adjust_txvga_for_iq_mag_0_tx=%d\n",
1301 iq_mag_0_tx));
1302
1303 if (iq_mag_0_tx >= 700 && iq_mag_0_tx <= 1750)
1304 break;
1305 else if (iq_mag_0_tx > 1750) {
1306 init_txvga = -2;
1307 continue;
1308 } else
1309 continue;
1310
1311 }
1312
1313 if (iq_mag_0_tx >= 700 && iq_mag_0_tx <= 1750)
1314 return true;
1315 else
1316 return false;
1317 }
Linux kernel - Deliverables
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