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PM / sleep: Asynchronous threads for suspend_noirq
[linux/fpc-iii.git] / drivers / media / pci / cx88 / cx88-tvaudio.c
blob424fd97495dcc8144852ee15417c991e30c10a89
1 /*
2
3 cx88x-audio.c - Conexant CX23880/23881 audio downstream driver driver
4
5 (c) 2001 Michael Eskin, Tom Zakrajsek [Windows version]
6 (c) 2002 Yurij Sysoev <yurij@naturesoft.net>
7 (c) 2003 Gerd Knorr <kraxel@bytesex.org>
8
9 -----------------------------------------------------------------------
10
11 Lot of voodoo here. Even the data sheet doesn't help to
12 understand what is going on here, the documentation for the audio
13 part of the cx2388x chip is *very* bad.
14
15 Some of this comes from party done linux driver sources I got from
16 [undocumented].
17
18 Some comes from the dscaler sources, one of the dscaler driver guy works
19 for Conexant ...
20
21 -----------------------------------------------------------------------
22
23 This program is free software; you can redistribute it and/or modify
24 it under the terms of the GNU General Public License as published by
25 the Free Software Foundation; either version 2 of the License, or
26 (at your option) any later version.
27
28 This program is distributed in the hope that it will be useful,
29 but WITHOUT ANY WARRANTY; without even the implied warranty of
30 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
31 GNU General Public License for more details.
32
33 You should have received a copy of the GNU General Public License
34 along with this program; if not, write to the Free Software
35 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
36 */
37
38 #include <linux/module.h>
39 #include <linux/errno.h>
40 #include <linux/freezer.h>
41 #include <linux/kernel.h>
42 #include <linux/mm.h>
43 #include <linux/poll.h>
44 #include <linux/signal.h>
45 #include <linux/ioport.h>
46 #include <linux/types.h>
47 #include <linux/interrupt.h>
48 #include <linux/vmalloc.h>
49 #include <linux/init.h>
50 #include <linux/delay.h>
51 #include <linux/kthread.h>
52
53 #include "cx88.h"
54
55 static unsigned int audio_debug;
56 module_param(audio_debug, int, 0644);
57 MODULE_PARM_DESC(audio_debug, "enable debug messages [audio]");
58
59 static unsigned int always_analog;
60 module_param(always_analog,int,0644);
61 MODULE_PARM_DESC(always_analog,"force analog audio out");
62
63 static unsigned int radio_deemphasis;
64 module_param(radio_deemphasis,int,0644);
65 MODULE_PARM_DESC(radio_deemphasis, "Radio deemphasis time constant, "
66 "0=None, 1=50us (elsewhere), 2=75us (USA)");
67
68 #define dprintk(fmt, arg...) if (audio_debug) \
69 printk(KERN_DEBUG "%s/0: " fmt, core->name , ## arg)
70
71 /* ----------------------------------------------------------- */
72
73 static const char * const aud_ctl_names[64] = {
74 [EN_BTSC_FORCE_MONO] = "BTSC_FORCE_MONO",
75 [EN_BTSC_FORCE_STEREO] = "BTSC_FORCE_STEREO",
76 [EN_BTSC_FORCE_SAP] = "BTSC_FORCE_SAP",
77 [EN_BTSC_AUTO_STEREO] = "BTSC_AUTO_STEREO",
78 [EN_BTSC_AUTO_SAP] = "BTSC_AUTO_SAP",
79 [EN_A2_FORCE_MONO1] = "A2_FORCE_MONO1",
80 [EN_A2_FORCE_MONO2] = "A2_FORCE_MONO2",
81 [EN_A2_FORCE_STEREO] = "A2_FORCE_STEREO",
82 [EN_A2_AUTO_MONO2] = "A2_AUTO_MONO2",
83 [EN_A2_AUTO_STEREO] = "A2_AUTO_STEREO",
84 [EN_EIAJ_FORCE_MONO1] = "EIAJ_FORCE_MONO1",
85 [EN_EIAJ_FORCE_MONO2] = "EIAJ_FORCE_MONO2",
86 [EN_EIAJ_FORCE_STEREO] = "EIAJ_FORCE_STEREO",
87 [EN_EIAJ_AUTO_MONO2] = "EIAJ_AUTO_MONO2",
88 [EN_EIAJ_AUTO_STEREO] = "EIAJ_AUTO_STEREO",
89 [EN_NICAM_FORCE_MONO1] = "NICAM_FORCE_MONO1",
90 [EN_NICAM_FORCE_MONO2] = "NICAM_FORCE_MONO2",
91 [EN_NICAM_FORCE_STEREO] = "NICAM_FORCE_STEREO",
92 [EN_NICAM_AUTO_MONO2] = "NICAM_AUTO_MONO2",
93 [EN_NICAM_AUTO_STEREO] = "NICAM_AUTO_STEREO",
94 [EN_FMRADIO_FORCE_MONO] = "FMRADIO_FORCE_MONO",
95 [EN_FMRADIO_FORCE_STEREO] = "FMRADIO_FORCE_STEREO",
96 [EN_FMRADIO_AUTO_STEREO] = "FMRADIO_AUTO_STEREO",
97 };
98
99 struct rlist {
100 u32 reg;
101 u32 val;
102 };
103
104 static void set_audio_registers(struct cx88_core *core, const struct rlist *l)
105 {
106 int i;
107
108 for (i = 0; l[i].reg; i++) {
109 switch (l[i].reg) {
110 case AUD_PDF_DDS_CNST_BYTE2:
111 case AUD_PDF_DDS_CNST_BYTE1:
112 case AUD_PDF_DDS_CNST_BYTE0:
113 case AUD_QAM_MODE:
114 case AUD_PHACC_FREQ_8MSB:
115 case AUD_PHACC_FREQ_8LSB:
116 cx_writeb(l[i].reg, l[i].val);
117 break;
118 default:
119 cx_write(l[i].reg, l[i].val);
120 break;
121 }
122 }
123 }
124
125 static void set_audio_start(struct cx88_core *core, u32 mode)
126 {
127 /* mute */
128 cx_write(AUD_VOL_CTL, (1 << 6));
129
130 /* start programming */
131 cx_write(AUD_INIT, mode);
132 cx_write(AUD_INIT_LD, 0x0001);
133 cx_write(AUD_SOFT_RESET, 0x0001);
134 }
135
136 static void set_audio_finish(struct cx88_core *core, u32 ctl)
137 {
138 u32 volume;
139
140 /* restart dma; This avoids buzz in NICAM and is good in others */
141 cx88_stop_audio_dma(core);
142 cx_write(AUD_RATE_THRES_DMD, 0x000000C0);
143 cx88_start_audio_dma(core);
144
145 if (core->board.mpeg & CX88_MPEG_BLACKBIRD) {
146 cx_write(AUD_I2SINPUTCNTL, 4);
147 cx_write(AUD_BAUDRATE, 1);
148 /* 'pass-thru mode': this enables the i2s output to the mpeg encoder */
149 cx_set(AUD_CTL, EN_I2SOUT_ENABLE);
150 cx_write(AUD_I2SOUTPUTCNTL, 1);
151 cx_write(AUD_I2SCNTL, 0);
152 /* cx_write(AUD_APB_IN_RATE_ADJ, 0); */
153 }
154 if ((always_analog) || (!(core->board.mpeg & CX88_MPEG_BLACKBIRD))) {
155 ctl |= EN_DAC_ENABLE;
156 cx_write(AUD_CTL, ctl);
157 }
158
159 /* finish programming */
160 cx_write(AUD_SOFT_RESET, 0x0000);
161
162 /* unmute */
163 volume = cx_sread(SHADOW_AUD_VOL_CTL);
164 cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, volume);
165
166 core->last_change = jiffies;
167 }
168
169 /* ----------------------------------------------------------- */
170
171 static void set_audio_standard_BTSC(struct cx88_core *core, unsigned int sap,
172 u32 mode)
173 {
174 static const struct rlist btsc[] = {
175 {AUD_AFE_12DB_EN, 0x00000001},
176 {AUD_OUT1_SEL, 0x00000013},
177 {AUD_OUT1_SHIFT, 0x00000000},
178 {AUD_POLY0_DDS_CONSTANT, 0x0012010c},
179 {AUD_DMD_RA_DDS, 0x00c3e7aa},
180 {AUD_DBX_IN_GAIN, 0x00004734},
181 {AUD_DBX_WBE_GAIN, 0x00004640},
182 {AUD_DBX_SE_GAIN, 0x00008d31},
183 {AUD_DCOC_0_SRC, 0x0000001a},
184 {AUD_IIR1_4_SEL, 0x00000021},
185 {AUD_DCOC_PASS_IN, 0x00000003},
186 {AUD_DCOC_0_SHIFT_IN0, 0x0000000a},
187 {AUD_DCOC_0_SHIFT_IN1, 0x00000008},
188 {AUD_DCOC_1_SHIFT_IN0, 0x0000000a},
189 {AUD_DCOC_1_SHIFT_IN1, 0x00000008},
190 {AUD_DN0_FREQ, 0x0000283b},
191 {AUD_DN2_SRC_SEL, 0x00000008},
192 {AUD_DN2_FREQ, 0x00003000},
193 {AUD_DN2_AFC, 0x00000002},
194 {AUD_DN2_SHFT, 0x00000000},
195 {AUD_IIR2_2_SEL, 0x00000020},
196 {AUD_IIR2_2_SHIFT, 0x00000000},
197 {AUD_IIR2_3_SEL, 0x0000001f},
198 {AUD_IIR2_3_SHIFT, 0x00000000},
199 {AUD_CRDC1_SRC_SEL, 0x000003ce},
200 {AUD_CRDC1_SHIFT, 0x00000000},
201 {AUD_CORDIC_SHIFT_1, 0x00000007},
202 {AUD_DCOC_1_SRC, 0x0000001b},
203 {AUD_DCOC1_SHIFT, 0x00000000},
204 {AUD_RDSI_SEL, 0x00000008},
205 {AUD_RDSQ_SEL, 0x00000008},
206 {AUD_RDSI_SHIFT, 0x00000000},
207 {AUD_RDSQ_SHIFT, 0x00000000},
208 {AUD_POLYPH80SCALEFAC, 0x00000003},
209 { /* end of list */ },
210 };
211 static const struct rlist btsc_sap[] = {
212 {AUD_AFE_12DB_EN, 0x00000001},
213 {AUD_DBX_IN_GAIN, 0x00007200},
214 {AUD_DBX_WBE_GAIN, 0x00006200},
215 {AUD_DBX_SE_GAIN, 0x00006200},
216 {AUD_IIR1_1_SEL, 0x00000000},
217 {AUD_IIR1_3_SEL, 0x00000001},
218 {AUD_DN1_SRC_SEL, 0x00000007},
219 {AUD_IIR1_4_SHIFT, 0x00000006},
220 {AUD_IIR2_1_SHIFT, 0x00000000},
221 {AUD_IIR2_2_SHIFT, 0x00000000},
222 {AUD_IIR3_0_SHIFT, 0x00000000},
223 {AUD_IIR3_1_SHIFT, 0x00000000},
224 {AUD_IIR3_0_SEL, 0x0000000d},
225 {AUD_IIR3_1_SEL, 0x0000000e},
226 {AUD_DEEMPH1_SRC_SEL, 0x00000014},
227 {AUD_DEEMPH1_SHIFT, 0x00000000},
228 {AUD_DEEMPH1_G0, 0x00004000},
229 {AUD_DEEMPH1_A0, 0x00000000},
230 {AUD_DEEMPH1_B0, 0x00000000},
231 {AUD_DEEMPH1_A1, 0x00000000},
232 {AUD_DEEMPH1_B1, 0x00000000},
233 {AUD_OUT0_SEL, 0x0000003f},
234 {AUD_OUT1_SEL, 0x0000003f},
235 {AUD_DN1_AFC, 0x00000002},
236 {AUD_DCOC_0_SHIFT_IN0, 0x0000000a},
237 {AUD_DCOC_0_SHIFT_IN1, 0x00000008},
238 {AUD_DCOC_1_SHIFT_IN0, 0x0000000a},
239 {AUD_DCOC_1_SHIFT_IN1, 0x00000008},
240 {AUD_IIR1_0_SEL, 0x0000001d},
241 {AUD_IIR1_2_SEL, 0x0000001e},
242 {AUD_IIR2_1_SEL, 0x00000002},
243 {AUD_IIR2_2_SEL, 0x00000004},
244 {AUD_IIR3_2_SEL, 0x0000000f},
245 {AUD_DCOC2_SHIFT, 0x00000001},
246 {AUD_IIR3_2_SHIFT, 0x00000001},
247 {AUD_DEEMPH0_SRC_SEL, 0x00000014},
248 {AUD_CORDIC_SHIFT_1, 0x00000006},
249 {AUD_POLY0_DDS_CONSTANT, 0x000e4db2},
250 {AUD_DMD_RA_DDS, 0x00f696e6},
251 {AUD_IIR2_3_SEL, 0x00000025},
252 {AUD_IIR1_4_SEL, 0x00000021},
253 {AUD_DN1_FREQ, 0x0000c965},
254 {AUD_DCOC_PASS_IN, 0x00000003},
255 {AUD_DCOC_0_SRC, 0x0000001a},
256 {AUD_DCOC_1_SRC, 0x0000001b},
257 {AUD_DCOC1_SHIFT, 0x00000000},
258 {AUD_RDSI_SEL, 0x00000009},
259 {AUD_RDSQ_SEL, 0x00000009},
260 {AUD_RDSI_SHIFT, 0x00000000},
261 {AUD_RDSQ_SHIFT, 0x00000000},
262 {AUD_POLYPH80SCALEFAC, 0x00000003},
263 { /* end of list */ },
264 };
265
266 mode |= EN_FMRADIO_EN_RDS;
267
268 if (sap) {
269 dprintk("%s SAP (status: unknown)\n", __func__);
270 set_audio_start(core, SEL_SAP);
271 set_audio_registers(core, btsc_sap);
272 set_audio_finish(core, mode);
273 } else {
274 dprintk("%s (status: known-good)\n", __func__);
275 set_audio_start(core, SEL_BTSC);
276 set_audio_registers(core, btsc);
277 set_audio_finish(core, mode);
278 }
279 }
280
281 static void set_audio_standard_NICAM(struct cx88_core *core, u32 mode)
282 {
283 static const struct rlist nicam_l[] = {
284 {AUD_AFE_12DB_EN, 0x00000001},
285 {AUD_RATE_ADJ1, 0x00000060},
286 {AUD_RATE_ADJ2, 0x000000F9},
287 {AUD_RATE_ADJ3, 0x000001CC},
288 {AUD_RATE_ADJ4, 0x000002B3},
289 {AUD_RATE_ADJ5, 0x00000726},
290 {AUD_DEEMPHDENOM1_R, 0x0000F3D0},
291 {AUD_DEEMPHDENOM2_R, 0x00000000},
292 {AUD_ERRLOGPERIOD_R, 0x00000064},
293 {AUD_ERRINTRPTTHSHLD1_R, 0x00000FFF},
294 {AUD_ERRINTRPTTHSHLD2_R, 0x0000001F},
295 {AUD_ERRINTRPTTHSHLD3_R, 0x0000000F},
296 {AUD_POLYPH80SCALEFAC, 0x00000003},
297 {AUD_DMD_RA_DDS, 0x00C00000},
298 {AUD_PLL_INT, 0x0000001E},
299 {AUD_PLL_DDS, 0x00000000},
300 {AUD_PLL_FRAC, 0x0000E542},
301 {AUD_START_TIMER, 0x00000000},
302 {AUD_DEEMPHNUMER1_R, 0x000353DE},
303 {AUD_DEEMPHNUMER2_R, 0x000001B1},
304 {AUD_PDF_DDS_CNST_BYTE2, 0x06},
305 {AUD_PDF_DDS_CNST_BYTE1, 0x82},
306 {AUD_PDF_DDS_CNST_BYTE0, 0x12},
307 {AUD_QAM_MODE, 0x05},
308 {AUD_PHACC_FREQ_8MSB, 0x34},
309 {AUD_PHACC_FREQ_8LSB, 0x4C},
310 {AUD_DEEMPHGAIN_R, 0x00006680},
311 {AUD_RATE_THRES_DMD, 0x000000C0},
312 { /* end of list */ },
313 };
314
315 static const struct rlist nicam_bgdki_common[] = {
316 {AUD_AFE_12DB_EN, 0x00000001},
317 {AUD_RATE_ADJ1, 0x00000010},
318 {AUD_RATE_ADJ2, 0x00000040},
319 {AUD_RATE_ADJ3, 0x00000100},
320 {AUD_RATE_ADJ4, 0x00000400},
321 {AUD_RATE_ADJ5, 0x00001000},
322 {AUD_ERRLOGPERIOD_R, 0x00000fff},
323 {AUD_ERRINTRPTTHSHLD1_R, 0x000003ff},
324 {AUD_ERRINTRPTTHSHLD2_R, 0x000000ff},
325 {AUD_ERRINTRPTTHSHLD3_R, 0x0000003f},
326 {AUD_POLYPH80SCALEFAC, 0x00000003},
327 {AUD_DEEMPHGAIN_R, 0x000023c2},
328 {AUD_DEEMPHNUMER1_R, 0x0002a7bc},
329 {AUD_DEEMPHNUMER2_R, 0x0003023e},
330 {AUD_DEEMPHDENOM1_R, 0x0000f3d0},
331 {AUD_DEEMPHDENOM2_R, 0x00000000},
332 {AUD_PDF_DDS_CNST_BYTE2, 0x06},
333 {AUD_PDF_DDS_CNST_BYTE1, 0x82},
334 {AUD_QAM_MODE, 0x05},
335 { /* end of list */ },
336 };
337
338 static const struct rlist nicam_i[] = {
339 {AUD_PDF_DDS_CNST_BYTE0, 0x12},
340 {AUD_PHACC_FREQ_8MSB, 0x3a},
341 {AUD_PHACC_FREQ_8LSB, 0x93},
342 { /* end of list */ },
343 };
344
345 static const struct rlist nicam_default[] = {
346 {AUD_PDF_DDS_CNST_BYTE0, 0x16},
347 {AUD_PHACC_FREQ_8MSB, 0x34},
348 {AUD_PHACC_FREQ_8LSB, 0x4c},
349 { /* end of list */ },
350 };
351
352 set_audio_start(core,SEL_NICAM);
353 switch (core->tvaudio) {
354 case WW_L:
355 dprintk("%s SECAM-L NICAM (status: devel)\n", __func__);
356 set_audio_registers(core, nicam_l);
357 break;
358 case WW_I:
359 dprintk("%s PAL-I NICAM (status: known-good)\n", __func__);
360 set_audio_registers(core, nicam_bgdki_common);
361 set_audio_registers(core, nicam_i);
362 break;
363 case WW_NONE:
364 case WW_BTSC:
365 case WW_BG:
366 case WW_DK:
367 case WW_EIAJ:
368 case WW_I2SPT:
369 case WW_FM:
370 case WW_I2SADC:
371 case WW_M:
372 dprintk("%s PAL-BGDK NICAM (status: known-good)\n", __func__);
373 set_audio_registers(core, nicam_bgdki_common);
374 set_audio_registers(core, nicam_default);
375 break;
376 }
377
378 mode |= EN_DMTRX_LR | EN_DMTRX_BYPASS;
379 set_audio_finish(core, mode);
380 }
381
382 static void set_audio_standard_A2(struct cx88_core *core, u32 mode)
383 {
384 static const struct rlist a2_bgdk_common[] = {
385 {AUD_ERRLOGPERIOD_R, 0x00000064},
386 {AUD_ERRINTRPTTHSHLD1_R, 0x00000fff},
387 {AUD_ERRINTRPTTHSHLD2_R, 0x0000001f},
388 {AUD_ERRINTRPTTHSHLD3_R, 0x0000000f},
389 {AUD_PDF_DDS_CNST_BYTE2, 0x06},
390 {AUD_PDF_DDS_CNST_BYTE1, 0x82},
391 {AUD_PDF_DDS_CNST_BYTE0, 0x12},
392 {AUD_QAM_MODE, 0x05},
393 {AUD_PHACC_FREQ_8MSB, 0x34},
394 {AUD_PHACC_FREQ_8LSB, 0x4c},
395 {AUD_RATE_ADJ1, 0x00000100},
396 {AUD_RATE_ADJ2, 0x00000200},
397 {AUD_RATE_ADJ3, 0x00000300},
398 {AUD_RATE_ADJ4, 0x00000400},
399 {AUD_RATE_ADJ5, 0x00000500},
400 {AUD_THR_FR, 0x00000000},
401 {AAGC_HYST, 0x0000001a},
402 {AUD_PILOT_BQD_1_K0, 0x0000755b},
403 {AUD_PILOT_BQD_1_K1, 0x00551340},
404 {AUD_PILOT_BQD_1_K2, 0x006d30be},
405 {AUD_PILOT_BQD_1_K3, 0xffd394af},
406 {AUD_PILOT_BQD_1_K4, 0x00400000},
407 {AUD_PILOT_BQD_2_K0, 0x00040000},
408 {AUD_PILOT_BQD_2_K1, 0x002a4841},
409 {AUD_PILOT_BQD_2_K2, 0x00400000},
410 {AUD_PILOT_BQD_2_K3, 0x00000000},
411 {AUD_PILOT_BQD_2_K4, 0x00000000},
412 {AUD_MODE_CHG_TIMER, 0x00000040},
413 {AUD_AFE_12DB_EN, 0x00000001},
414 {AUD_CORDIC_SHIFT_0, 0x00000007},
415 {AUD_CORDIC_SHIFT_1, 0x00000007},
416 {AUD_DEEMPH0_G0, 0x00000380},
417 {AUD_DEEMPH1_G0, 0x00000380},
418 {AUD_DCOC_0_SRC, 0x0000001a},
419 {AUD_DCOC0_SHIFT, 0x00000000},
420 {AUD_DCOC_0_SHIFT_IN0, 0x0000000a},
421 {AUD_DCOC_0_SHIFT_IN1, 0x00000008},
422 {AUD_DCOC_PASS_IN, 0x00000003},
423 {AUD_IIR3_0_SEL, 0x00000021},
424 {AUD_DN2_AFC, 0x00000002},
425 {AUD_DCOC_1_SRC, 0x0000001b},
426 {AUD_DCOC1_SHIFT, 0x00000000},
427 {AUD_DCOC_1_SHIFT_IN0, 0x0000000a},
428 {AUD_DCOC_1_SHIFT_IN1, 0x00000008},
429 {AUD_IIR3_1_SEL, 0x00000023},
430 {AUD_RDSI_SEL, 0x00000017},
431 {AUD_RDSI_SHIFT, 0x00000000},
432 {AUD_RDSQ_SEL, 0x00000017},
433 {AUD_RDSQ_SHIFT, 0x00000000},
434 {AUD_PLL_INT, 0x0000001e},
435 {AUD_PLL_DDS, 0x00000000},
436 {AUD_PLL_FRAC, 0x0000e542},
437 {AUD_POLYPH80SCALEFAC, 0x00000001},
438 {AUD_START_TIMER, 0x00000000},
439 { /* end of list */ },
440 };
441
442 static const struct rlist a2_bg[] = {
443 {AUD_DMD_RA_DDS, 0x002a4f2f},
444 {AUD_C1_UP_THR, 0x00007000},
445 {AUD_C1_LO_THR, 0x00005400},
446 {AUD_C2_UP_THR, 0x00005400},
447 {AUD_C2_LO_THR, 0x00003000},
448 { /* end of list */ },
449 };
450
451 static const struct rlist a2_dk[] = {
452 {AUD_DMD_RA_DDS, 0x002a4f2f},
453 {AUD_C1_UP_THR, 0x00007000},
454 {AUD_C1_LO_THR, 0x00005400},
455 {AUD_C2_UP_THR, 0x00005400},
456 {AUD_C2_LO_THR, 0x00003000},
457 {AUD_DN0_FREQ, 0x00003a1c},
458 {AUD_DN2_FREQ, 0x0000d2e0},
459 { /* end of list */ },
460 };
461
462 static const struct rlist a1_i[] = {
463 {AUD_ERRLOGPERIOD_R, 0x00000064},
464 {AUD_ERRINTRPTTHSHLD1_R, 0x00000fff},
465 {AUD_ERRINTRPTTHSHLD2_R, 0x0000001f},
466 {AUD_ERRINTRPTTHSHLD3_R, 0x0000000f},
467 {AUD_PDF_DDS_CNST_BYTE2, 0x06},
468 {AUD_PDF_DDS_CNST_BYTE1, 0x82},
469 {AUD_PDF_DDS_CNST_BYTE0, 0x12},
470 {AUD_QAM_MODE, 0x05},
471 {AUD_PHACC_FREQ_8MSB, 0x3a},
472 {AUD_PHACC_FREQ_8LSB, 0x93},
473 {AUD_DMD_RA_DDS, 0x002a4f2f},
474 {AUD_PLL_INT, 0x0000001e},
475 {AUD_PLL_DDS, 0x00000004},
476 {AUD_PLL_FRAC, 0x0000e542},
477 {AUD_RATE_ADJ1, 0x00000100},
478 {AUD_RATE_ADJ2, 0x00000200},
479 {AUD_RATE_ADJ3, 0x00000300},
480 {AUD_RATE_ADJ4, 0x00000400},
481 {AUD_RATE_ADJ5, 0x00000500},
482 {AUD_THR_FR, 0x00000000},
483 {AUD_PILOT_BQD_1_K0, 0x0000755b},
484 {AUD_PILOT_BQD_1_K1, 0x00551340},
485 {AUD_PILOT_BQD_1_K2, 0x006d30be},
486 {AUD_PILOT_BQD_1_K3, 0xffd394af},
487 {AUD_PILOT_BQD_1_K4, 0x00400000},
488 {AUD_PILOT_BQD_2_K0, 0x00040000},
489 {AUD_PILOT_BQD_2_K1, 0x002a4841},
490 {AUD_PILOT_BQD_2_K2, 0x00400000},
491 {AUD_PILOT_BQD_2_K3, 0x00000000},
492 {AUD_PILOT_BQD_2_K4, 0x00000000},
493 {AUD_MODE_CHG_TIMER, 0x00000060},
494 {AUD_AFE_12DB_EN, 0x00000001},
495 {AAGC_HYST, 0x0000000a},
496 {AUD_CORDIC_SHIFT_0, 0x00000007},
497 {AUD_CORDIC_SHIFT_1, 0x00000007},
498 {AUD_C1_UP_THR, 0x00007000},
499 {AUD_C1_LO_THR, 0x00005400},
500 {AUD_C2_UP_THR, 0x00005400},
501 {AUD_C2_LO_THR, 0x00003000},
502 {AUD_DCOC_0_SRC, 0x0000001a},
503 {AUD_DCOC0_SHIFT, 0x00000000},
504 {AUD_DCOC_0_SHIFT_IN0, 0x0000000a},
505 {AUD_DCOC_0_SHIFT_IN1, 0x00000008},
506 {AUD_DCOC_PASS_IN, 0x00000003},
507 {AUD_IIR3_0_SEL, 0x00000021},
508 {AUD_DN2_AFC, 0x00000002},
509 {AUD_DCOC_1_SRC, 0x0000001b},
510 {AUD_DCOC1_SHIFT, 0x00000000},
511 {AUD_DCOC_1_SHIFT_IN0, 0x0000000a},
512 {AUD_DCOC_1_SHIFT_IN1, 0x00000008},
513 {AUD_IIR3_1_SEL, 0x00000023},
514 {AUD_DN0_FREQ, 0x000035a3},
515 {AUD_DN2_FREQ, 0x000029c7},
516 {AUD_CRDC0_SRC_SEL, 0x00000511},
517 {AUD_IIR1_0_SEL, 0x00000001},
518 {AUD_IIR1_1_SEL, 0x00000000},
519 {AUD_IIR3_2_SEL, 0x00000003},
520 {AUD_IIR3_2_SHIFT, 0x00000000},
521 {AUD_IIR3_0_SEL, 0x00000002},
522 {AUD_IIR2_0_SEL, 0x00000021},
523 {AUD_IIR2_0_SHIFT, 0x00000002},
524 {AUD_DEEMPH0_SRC_SEL, 0x0000000b},
525 {AUD_DEEMPH1_SRC_SEL, 0x0000000b},
526 {AUD_POLYPH80SCALEFAC, 0x00000001},
527 {AUD_START_TIMER, 0x00000000},
528 { /* end of list */ },
529 };
530
531 static const struct rlist am_l[] = {
532 {AUD_ERRLOGPERIOD_R, 0x00000064},
533 {AUD_ERRINTRPTTHSHLD1_R, 0x00000FFF},
534 {AUD_ERRINTRPTTHSHLD2_R, 0x0000001F},
535 {AUD_ERRINTRPTTHSHLD3_R, 0x0000000F},
536 {AUD_PDF_DDS_CNST_BYTE2, 0x48},
537 {AUD_PDF_DDS_CNST_BYTE1, 0x3D},
538 {AUD_QAM_MODE, 0x00},
539 {AUD_PDF_DDS_CNST_BYTE0, 0xf5},
540 {AUD_PHACC_FREQ_8MSB, 0x3a},
541 {AUD_PHACC_FREQ_8LSB, 0x4a},
542 {AUD_DEEMPHGAIN_R, 0x00006680},
543 {AUD_DEEMPHNUMER1_R, 0x000353DE},
544 {AUD_DEEMPHNUMER2_R, 0x000001B1},
545 {AUD_DEEMPHDENOM1_R, 0x0000F3D0},
546 {AUD_DEEMPHDENOM2_R, 0x00000000},
547 {AUD_FM_MODE_ENABLE, 0x00000007},
548 {AUD_POLYPH80SCALEFAC, 0x00000003},
549 {AUD_AFE_12DB_EN, 0x00000001},
550 {AAGC_GAIN, 0x00000000},
551 {AAGC_HYST, 0x00000018},
552 {AAGC_DEF, 0x00000020},
553 {AUD_DN0_FREQ, 0x00000000},
554 {AUD_POLY0_DDS_CONSTANT, 0x000E4DB2},
555 {AUD_DCOC_0_SRC, 0x00000021},
556 {AUD_IIR1_0_SEL, 0x00000000},
557 {AUD_IIR1_0_SHIFT, 0x00000007},
558 {AUD_IIR1_1_SEL, 0x00000002},
559 {AUD_IIR1_1_SHIFT, 0x00000000},
560 {AUD_DCOC_1_SRC, 0x00000003},
561 {AUD_DCOC1_SHIFT, 0x00000000},
562 {AUD_DCOC_PASS_IN, 0x00000000},
563 {AUD_IIR1_2_SEL, 0x00000023},
564 {AUD_IIR1_2_SHIFT, 0x00000000},
565 {AUD_IIR1_3_SEL, 0x00000004},
566 {AUD_IIR1_3_SHIFT, 0x00000007},
567 {AUD_IIR1_4_SEL, 0x00000005},
568 {AUD_IIR1_4_SHIFT, 0x00000007},
569 {AUD_IIR3_0_SEL, 0x00000007},
570 {AUD_IIR3_0_SHIFT, 0x00000000},
571 {AUD_DEEMPH0_SRC_SEL, 0x00000011},
572 {AUD_DEEMPH0_SHIFT, 0x00000000},
573 {AUD_DEEMPH0_G0, 0x00007000},
574 {AUD_DEEMPH0_A0, 0x00000000},
575 {AUD_DEEMPH0_B0, 0x00000000},
576 {AUD_DEEMPH0_A1, 0x00000000},
577 {AUD_DEEMPH0_B1, 0x00000000},
578 {AUD_DEEMPH1_SRC_SEL, 0x00000011},
579 {AUD_DEEMPH1_SHIFT, 0x00000000},
580 {AUD_DEEMPH1_G0, 0x00007000},
581 {AUD_DEEMPH1_A0, 0x00000000},
582 {AUD_DEEMPH1_B0, 0x00000000},
583 {AUD_DEEMPH1_A1, 0x00000000},
584 {AUD_DEEMPH1_B1, 0x00000000},
585 {AUD_OUT0_SEL, 0x0000003F},
586 {AUD_OUT1_SEL, 0x0000003F},
587 {AUD_DMD_RA_DDS, 0x00F5C285},
588 {AUD_PLL_INT, 0x0000001E},
589 {AUD_PLL_DDS, 0x00000000},
590 {AUD_PLL_FRAC, 0x0000E542},
591 {AUD_RATE_ADJ1, 0x00000100},
592 {AUD_RATE_ADJ2, 0x00000200},
593 {AUD_RATE_ADJ3, 0x00000300},
594 {AUD_RATE_ADJ4, 0x00000400},
595 {AUD_RATE_ADJ5, 0x00000500},
596 {AUD_RATE_THRES_DMD, 0x000000C0},
597 { /* end of list */ },
598 };
599
600 static const struct rlist a2_deemph50[] = {
601 {AUD_DEEMPH0_G0, 0x00000380},
602 {AUD_DEEMPH1_G0, 0x00000380},
603 {AUD_DEEMPHGAIN_R, 0x000011e1},
604 {AUD_DEEMPHNUMER1_R, 0x0002a7bc},
605 {AUD_DEEMPHNUMER2_R, 0x0003023c},
606 { /* end of list */ },
607 };
608
609 set_audio_start(core, SEL_A2);
610 switch (core->tvaudio) {
611 case WW_BG:
612 dprintk("%s PAL-BG A1/2 (status: known-good)\n", __func__);
613 set_audio_registers(core, a2_bgdk_common);
614 set_audio_registers(core, a2_bg);
615 set_audio_registers(core, a2_deemph50);
616 break;
617 case WW_DK:
618 dprintk("%s PAL-DK A1/2 (status: known-good)\n", __func__);
619 set_audio_registers(core, a2_bgdk_common);
620 set_audio_registers(core, a2_dk);
621 set_audio_registers(core, a2_deemph50);
622 break;
623 case WW_I:
624 dprintk("%s PAL-I A1 (status: known-good)\n", __func__);
625 set_audio_registers(core, a1_i);
626 set_audio_registers(core, a2_deemph50);
627 break;
628 case WW_L:
629 dprintk("%s AM-L (status: devel)\n", __func__);
630 set_audio_registers(core, am_l);
631 break;
632 case WW_NONE:
633 case WW_BTSC:
634 case WW_EIAJ:
635 case WW_I2SPT:
636 case WW_FM:
637 case WW_I2SADC:
638 case WW_M:
639 dprintk("%s Warning: wrong value\n", __func__);
640 return;
641 break;
642 }
643
644 mode |= EN_FMRADIO_EN_RDS | EN_DMTRX_SUMDIFF;
645 set_audio_finish(core, mode);
646 }
647
648 static void set_audio_standard_EIAJ(struct cx88_core *core)
649 {
650 static const struct rlist eiaj[] = {
651 /* TODO: eiaj register settings are not there yet ... */
652
653 { /* end of list */ },
654 };
655 dprintk("%s (status: unknown)\n", __func__);
656
657 set_audio_start(core, SEL_EIAJ);
658 set_audio_registers(core, eiaj);
659 set_audio_finish(core, EN_EIAJ_AUTO_STEREO);
660 }
661
662 static void set_audio_standard_FM(struct cx88_core *core,
663 enum cx88_deemph_type deemph)
664 {
665 static const struct rlist fm_deemph_50[] = {
666 {AUD_DEEMPH0_G0, 0x0C45},
667 {AUD_DEEMPH0_A0, 0x6262},
668 {AUD_DEEMPH0_B0, 0x1C29},
669 {AUD_DEEMPH0_A1, 0x3FC66},
670 {AUD_DEEMPH0_B1, 0x399A},
671
672 {AUD_DEEMPH1_G0, 0x0D80},
673 {AUD_DEEMPH1_A0, 0x6262},
674 {AUD_DEEMPH1_B0, 0x1C29},
675 {AUD_DEEMPH1_A1, 0x3FC66},
676 {AUD_DEEMPH1_B1, 0x399A},
677
678 {AUD_POLYPH80SCALEFAC, 0x0003},
679 { /* end of list */ },
680 };
681 static const struct rlist fm_deemph_75[] = {
682 {AUD_DEEMPH0_G0, 0x091B},
683 {AUD_DEEMPH0_A0, 0x6B68},
684 {AUD_DEEMPH0_B0, 0x11EC},
685 {AUD_DEEMPH0_A1, 0x3FC66},
686 {AUD_DEEMPH0_B1, 0x399A},
687
688 {AUD_DEEMPH1_G0, 0x0AA0},
689 {AUD_DEEMPH1_A0, 0x6B68},
690 {AUD_DEEMPH1_B0, 0x11EC},
691 {AUD_DEEMPH1_A1, 0x3FC66},
692 {AUD_DEEMPH1_B1, 0x399A},
693
694 {AUD_POLYPH80SCALEFAC, 0x0003},
695 { /* end of list */ },
696 };
697
698 /* It is enough to leave default values? */
699 /* No, it's not! The deemphasis registers are reset to the 75us
700 * values by default. Analyzing the spectrum of the decoded audio
701 * reveals that "no deemphasis" is the same as 75 us, while the 50 us
702 * setting results in less deemphasis. */
703 static const struct rlist fm_no_deemph[] = {
704
705 {AUD_POLYPH80SCALEFAC, 0x0003},
706 { /* end of list */ },
707 };
708
709 dprintk("%s (status: unknown)\n", __func__);
710 set_audio_start(core, SEL_FMRADIO);
711
712 switch (deemph) {
713 default:
714 case FM_NO_DEEMPH:
715 set_audio_registers(core, fm_no_deemph);
716 break;
717
718 case FM_DEEMPH_50:
719 set_audio_registers(core, fm_deemph_50);
720 break;
721
722 case FM_DEEMPH_75:
723 set_audio_registers(core, fm_deemph_75);
724 break;
725 }
726
727 set_audio_finish(core, EN_FMRADIO_AUTO_STEREO);
728 }
729
730 /* ----------------------------------------------------------- */
731
732 static int cx88_detect_nicam(struct cx88_core *core)
733 {
734 int i, j = 0;
735
736 dprintk("start nicam autodetect.\n");
737
738 for (i = 0; i < 6; i++) {
739 /* if bit1=1 then nicam is detected */
740 j += ((cx_read(AUD_NICAM_STATUS2) & 0x02) >> 1);
741
742 if (j == 1) {
743 dprintk("nicam is detected.\n");
744 return 1;
745 }
746
747 /* wait a little bit for next reading status */
748 msleep(10);
749 }
750
751 dprintk("nicam is not detected.\n");
752 return 0;
753 }
754
755 void cx88_set_tvaudio(struct cx88_core *core)
756 {
757 switch (core->tvaudio) {
758 case WW_BTSC:
759 set_audio_standard_BTSC(core, 0, EN_BTSC_AUTO_STEREO);
760 break;
761 case WW_BG:
762 case WW_DK:
763 case WW_M:
764 case WW_I:
765 case WW_L:
766 /* prepare all dsp registers */
767 set_audio_standard_A2(core, EN_A2_FORCE_MONO1);
768
769 /* set nicam mode - otherwise
770 AUD_NICAM_STATUS2 contains wrong values */
771 set_audio_standard_NICAM(core, EN_NICAM_AUTO_STEREO);
772 if (0 == cx88_detect_nicam(core)) {
773 /* fall back to fm / am mono */
774 set_audio_standard_A2(core, EN_A2_FORCE_MONO1);
775 core->audiomode_current = V4L2_TUNER_MODE_MONO;
776 core->use_nicam = 0;
777 } else {
778 core->use_nicam = 1;
779 }
780 break;
781 case WW_EIAJ:
782 set_audio_standard_EIAJ(core);
783 break;
784 case WW_FM:
785 set_audio_standard_FM(core, radio_deemphasis);
786 break;
787 case WW_I2SADC:
788 set_audio_start(core, 0x01);
789 /*
790 * Slave/Philips/Autobaud
791 * NB on Nova-S bit1 NPhilipsSony appears to be inverted:
792 * 0= Sony, 1=Philips
793 */
794 cx_write(AUD_I2SINPUTCNTL, core->board.i2sinputcntl);
795 /* Switch to "I2S ADC mode" */
796 cx_write(AUD_I2SCNTL, 0x1);
797 set_audio_finish(core, EN_I2SIN_ENABLE);
798 break;
799 case WW_NONE:
800 case WW_I2SPT:
801 printk("%s/0: unknown tv audio mode [%d]\n",
802 core->name, core->tvaudio);
803 break;
804 }
805 return;
806 }
807
808 void cx88_newstation(struct cx88_core *core)
809 {
810 core->audiomode_manual = UNSET;
811 core->last_change = jiffies;
812 }
813
814 void cx88_get_stereo(struct cx88_core *core, struct v4l2_tuner *t)
815 {
816 static const char * const m[] = { "stereo", "dual mono", "mono", "sap" };
817 static const char * const p[] = { "no pilot", "pilot c1", "pilot c2", "?" };
818 u32 reg, mode, pilot;
819
820 reg = cx_read(AUD_STATUS);
821 mode = reg & 0x03;
822 pilot = (reg >> 2) & 0x03;
823
824 if (core->astat != reg)
825 dprintk("AUD_STATUS: 0x%x [%s/%s] ctl=%s\n",
826 reg, m[mode], p[pilot],
827 aud_ctl_names[cx_read(AUD_CTL) & 63]);
828 core->astat = reg;
829
830 t->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_SAP |
831 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
832 t->rxsubchans = UNSET;
833 t->audmode = V4L2_TUNER_MODE_MONO;
834
835 switch (mode) {
836 case 0:
837 t->audmode = V4L2_TUNER_MODE_STEREO;
838 break;
839 case 1:
840 t->audmode = V4L2_TUNER_MODE_LANG2;
841 break;
842 case 2:
843 t->audmode = V4L2_TUNER_MODE_MONO;
844 break;
845 case 3:
846 t->audmode = V4L2_TUNER_MODE_SAP;
847 break;
848 }
849
850 switch (core->tvaudio) {
851 case WW_BTSC:
852 case WW_BG:
853 case WW_DK:
854 case WW_M:
855 case WW_EIAJ:
856 if (!core->use_nicam) {
857 t->rxsubchans = cx88_dsp_detect_stereo_sap(core);
858 break;
859 }
860 break;
861 case WW_NONE:
862 case WW_I:
863 case WW_L:
864 case WW_I2SPT:
865 case WW_FM:
866 case WW_I2SADC:
867 /* nothing */
868 break;
869 }
870
871 /* If software stereo detection is not supported... */
872 if (UNSET == t->rxsubchans) {
873 t->rxsubchans = V4L2_TUNER_SUB_MONO;
874 /* If the hardware itself detected stereo, also return
875 stereo as an available subchannel */
876 if (V4L2_TUNER_MODE_STEREO == t->audmode)
877 t->rxsubchans |= V4L2_TUNER_SUB_STEREO;
878 }
879 return;
880 }
881
882 void cx88_set_stereo(struct cx88_core *core, u32 mode, int manual)
883 {
884 u32 ctl = UNSET;
885 u32 mask = UNSET;
886
887 if (manual) {
888 core->audiomode_manual = mode;
889 } else {
890 if (UNSET != core->audiomode_manual)
891 return;
892 }
893 core->audiomode_current = mode;
894
895 switch (core->tvaudio) {
896 case WW_BTSC:
897 switch (mode) {
898 case V4L2_TUNER_MODE_MONO:
899 set_audio_standard_BTSC(core, 0, EN_BTSC_FORCE_MONO);
900 break;
901 case V4L2_TUNER_MODE_LANG1:
902 set_audio_standard_BTSC(core, 0, EN_BTSC_AUTO_STEREO);
903 break;
904 case V4L2_TUNER_MODE_LANG2:
905 set_audio_standard_BTSC(core, 1, EN_BTSC_FORCE_SAP);
906 break;
907 case V4L2_TUNER_MODE_STEREO:
908 case V4L2_TUNER_MODE_LANG1_LANG2:
909 set_audio_standard_BTSC(core, 0, EN_BTSC_FORCE_STEREO);
910 break;
911 }
912 break;
913 case WW_BG:
914 case WW_DK:
915 case WW_M:
916 case WW_I:
917 case WW_L:
918 if (1 == core->use_nicam) {
919 switch (mode) {
920 case V4L2_TUNER_MODE_MONO:
921 case V4L2_TUNER_MODE_LANG1:
922 set_audio_standard_NICAM(core,
923 EN_NICAM_FORCE_MONO1);
924 break;
925 case V4L2_TUNER_MODE_LANG2:
926 set_audio_standard_NICAM(core,
927 EN_NICAM_FORCE_MONO2);
928 break;
929 case V4L2_TUNER_MODE_STEREO:
930 case V4L2_TUNER_MODE_LANG1_LANG2:
931 set_audio_standard_NICAM(core,
932 EN_NICAM_FORCE_STEREO);
933 break;
934 }
935 } else {
936 if ((core->tvaudio == WW_I) || (core->tvaudio == WW_L)) {
937 /* fall back to fm / am mono */
938 set_audio_standard_A2(core, EN_A2_FORCE_MONO1);
939 } else {
940 /* TODO: Add A2 autodection */
941 mask = 0x3f;
942 switch (mode) {
943 case V4L2_TUNER_MODE_MONO:
944 case V4L2_TUNER_MODE_LANG1:
945 ctl = EN_A2_FORCE_MONO1;
946 break;
947 case V4L2_TUNER_MODE_LANG2:
948 ctl = EN_A2_FORCE_MONO2;
949 break;
950 case V4L2_TUNER_MODE_STEREO:
951 case V4L2_TUNER_MODE_LANG1_LANG2:
952 ctl = EN_A2_FORCE_STEREO;
953 break;
954 }
955 }
956 }
957 break;
958 case WW_FM:
959 switch (mode) {
960 case V4L2_TUNER_MODE_MONO:
961 ctl = EN_FMRADIO_FORCE_MONO;
962 mask = 0x3f;
963 break;
964 case V4L2_TUNER_MODE_STEREO:
965 ctl = EN_FMRADIO_AUTO_STEREO;
966 mask = 0x3f;
967 break;
968 }
969 break;
970 case WW_I2SADC:
971 case WW_NONE:
972 case WW_EIAJ:
973 case WW_I2SPT:
974 /* DO NOTHING */
975 break;
976 }
977
978 if (UNSET != ctl) {
979 dprintk("cx88_set_stereo: mask 0x%x, ctl 0x%x "
980 "[status=0x%x,ctl=0x%x,vol=0x%x]\n",
981 mask, ctl, cx_read(AUD_STATUS),
982 cx_read(AUD_CTL), cx_sread(SHADOW_AUD_VOL_CTL));
983 cx_andor(AUD_CTL, mask, ctl);
984 }
985 return;
986 }
987
988 int cx88_audio_thread(void *data)
989 {
990 struct cx88_core *core = data;
991 struct v4l2_tuner t;
992 u32 mode = 0;
993
994 dprintk("cx88: tvaudio thread started\n");
995 set_freezable();
996 for (;;) {
997 msleep_interruptible(1000);
998 if (kthread_should_stop())
999 break;
1000 try_to_freeze();
1001
1002 switch (core->tvaudio) {
1003 case WW_BG:
1004 case WW_DK:
1005 case WW_M:
1006 case WW_I:
1007 case WW_L:
1008 if (core->use_nicam)
1009 goto hw_autodetect;
1010
1011 /* just monitor the audio status for now ... */
1012 memset(&t, 0, sizeof(t));
1013 cx88_get_stereo(core, &t);
1014
1015 if (UNSET != core->audiomode_manual)
1016 /* manually set, don't do anything. */
1017 continue;
1018
1019 /* monitor signal and set stereo if available */
1020 if (t.rxsubchans & V4L2_TUNER_SUB_STEREO)
1021 mode = V4L2_TUNER_MODE_STEREO;
1022 else
1023 mode = V4L2_TUNER_MODE_MONO;
1024 if (mode == core->audiomode_current)
1025 continue;
1026 /* automatically switch to best available mode */
1027 cx88_set_stereo(core, mode, 0);
1028 break;
1029 case WW_NONE:
1030 case WW_BTSC:
1031 case WW_EIAJ:
1032 case WW_I2SPT:
1033 case WW_FM:
1034 case WW_I2SADC:
1035 hw_autodetect:
1036 /* stereo autodetection is supported by hardware so
1037 we don't need to do it manually. Do nothing. */
1038 break;
1039 }
1040 }
1041
1042 dprintk("cx88: tvaudio thread exiting\n");
1043 return 0;
1044 }
1045
1046 /* ----------------------------------------------------------- */
1047
1048 EXPORT_SYMBOL(cx88_set_tvaudio);
1049 EXPORT_SYMBOL(cx88_newstation);
1050 EXPORT_SYMBOL(cx88_set_stereo);
1051 EXPORT_SYMBOL(cx88_get_stereo);
1052 EXPORT_SYMBOL(cx88_audio_thread);
1053
1054 /*
1055 * Local variables:
1056 * c-basic-offset: 8
1057 * End:
1058 * kate: eol "unix"; indent-width 3; remove-trailing-space on; replace-trailing-space-save on; tab-width 8; replace-tabs off; space-indent off; mixed-indent off
1059 */
Linux with added FPC-III support