Full support for Ginger Console
[linux-ginger.git] / drivers / media / video / cx88 / cx88-tvaudio.c
blobe8316cf7f32f70b8e76b78eac4569b205cddf15d
1 /*
3 cx88x-audio.c - Conexant CX23880/23881 audio downstream driver driver
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>
9 -----------------------------------------------------------------------
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.
15 Some of this comes from party done linux driver sources I got from
16 [undocumented].
18 Some comes from the dscaler sources, one of the dscaler driver guy works
19 for Conexant ...
21 -----------------------------------------------------------------------
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.
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.
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.
38 #include <linux/module.h>
39 #include <linux/errno.h>
40 #include <linux/freezer.h>
41 #include <linux/kernel.h>
42 #include <linux/slab.h>
43 #include <linux/mm.h>
44 #include <linux/poll.h>
45 #include <linux/signal.h>
46 #include <linux/ioport.h>
47 #include <linux/types.h>
48 #include <linux/interrupt.h>
49 #include <linux/vmalloc.h>
50 #include <linux/init.h>
51 #include <linux/delay.h>
52 #include <linux/kthread.h>
54 #include "cx88.h"
56 static unsigned int audio_debug;
57 module_param(audio_debug, int, 0644);
58 MODULE_PARM_DESC(audio_debug, "enable debug messages [audio]");
60 static unsigned int always_analog;
61 module_param(always_analog,int,0644);
62 MODULE_PARM_DESC(always_analog,"force analog audio out");
64 static unsigned int radio_deemphasis;
65 module_param(radio_deemphasis,int,0644);
66 MODULE_PARM_DESC(radio_deemphasis, "Radio deemphasis time constant, "
67 "0=None, 1=50us (elsewhere), 2=75us (USA)");
69 #define dprintk(fmt, arg...) if (audio_debug) \
70 printk(KERN_DEBUG "%s/0: " fmt, core->name , ## arg)
72 /* ----------------------------------------------------------- */
74 static char *aud_ctl_names[64] = {
75 [EN_BTSC_FORCE_MONO] = "BTSC_FORCE_MONO",
76 [EN_BTSC_FORCE_STEREO] = "BTSC_FORCE_STEREO",
77 [EN_BTSC_FORCE_SAP] = "BTSC_FORCE_SAP",
78 [EN_BTSC_AUTO_STEREO] = "BTSC_AUTO_STEREO",
79 [EN_BTSC_AUTO_SAP] = "BTSC_AUTO_SAP",
80 [EN_A2_FORCE_MONO1] = "A2_FORCE_MONO1",
81 [EN_A2_FORCE_MONO2] = "A2_FORCE_MONO2",
82 [EN_A2_FORCE_STEREO] = "A2_FORCE_STEREO",
83 [EN_A2_AUTO_MONO2] = "A2_AUTO_MONO2",
84 [EN_A2_AUTO_STEREO] = "A2_AUTO_STEREO",
85 [EN_EIAJ_FORCE_MONO1] = "EIAJ_FORCE_MONO1",
86 [EN_EIAJ_FORCE_MONO2] = "EIAJ_FORCE_MONO2",
87 [EN_EIAJ_FORCE_STEREO] = "EIAJ_FORCE_STEREO",
88 [EN_EIAJ_AUTO_MONO2] = "EIAJ_AUTO_MONO2",
89 [EN_EIAJ_AUTO_STEREO] = "EIAJ_AUTO_STEREO",
90 [EN_NICAM_FORCE_MONO1] = "NICAM_FORCE_MONO1",
91 [EN_NICAM_FORCE_MONO2] = "NICAM_FORCE_MONO2",
92 [EN_NICAM_FORCE_STEREO] = "NICAM_FORCE_STEREO",
93 [EN_NICAM_AUTO_MONO2] = "NICAM_AUTO_MONO2",
94 [EN_NICAM_AUTO_STEREO] = "NICAM_AUTO_STEREO",
95 [EN_FMRADIO_FORCE_MONO] = "FMRADIO_FORCE_MONO",
96 [EN_FMRADIO_FORCE_STEREO] = "FMRADIO_FORCE_STEREO",
97 [EN_FMRADIO_AUTO_STEREO] = "FMRADIO_AUTO_STEREO",
100 struct rlist {
101 u32 reg;
102 u32 val;
105 static void set_audio_registers(struct cx88_core *core, const struct rlist *l)
107 int i;
109 for (i = 0; l[i].reg; i++) {
110 switch (l[i].reg) {
111 case AUD_PDF_DDS_CNST_BYTE2:
112 case AUD_PDF_DDS_CNST_BYTE1:
113 case AUD_PDF_DDS_CNST_BYTE0:
114 case AUD_QAM_MODE:
115 case AUD_PHACC_FREQ_8MSB:
116 case AUD_PHACC_FREQ_8LSB:
117 cx_writeb(l[i].reg, l[i].val);
118 break;
119 default:
120 cx_write(l[i].reg, l[i].val);
121 break;
126 static void set_audio_start(struct cx88_core *core, u32 mode)
128 /* mute */
129 cx_write(AUD_VOL_CTL, (1 << 6));
131 /* start programming */
132 cx_write(AUD_INIT, mode);
133 cx_write(AUD_INIT_LD, 0x0001);
134 cx_write(AUD_SOFT_RESET, 0x0001);
137 static void set_audio_finish(struct cx88_core *core, u32 ctl)
139 u32 volume;
141 /* restart dma; This avoids buzz in NICAM and is good in others */
142 cx88_stop_audio_dma(core);
143 cx_write(AUD_RATE_THRES_DMD, 0x000000C0);
144 cx88_start_audio_dma(core);
146 if (core->board.mpeg & CX88_MPEG_BLACKBIRD) {
147 cx_write(AUD_I2SINPUTCNTL, 4);
148 cx_write(AUD_BAUDRATE, 1);
149 /* 'pass-thru mode': this enables the i2s output to the mpeg encoder */
150 cx_set(AUD_CTL, EN_I2SOUT_ENABLE);
151 cx_write(AUD_I2SOUTPUTCNTL, 1);
152 cx_write(AUD_I2SCNTL, 0);
153 /* cx_write(AUD_APB_IN_RATE_ADJ, 0); */
155 if ((always_analog) || (!(core->board.mpeg & CX88_MPEG_BLACKBIRD))) {
156 ctl |= EN_DAC_ENABLE;
157 cx_write(AUD_CTL, ctl);
160 /* finish programming */
161 cx_write(AUD_SOFT_RESET, 0x0000);
163 /* unmute */
164 volume = cx_sread(SHADOW_AUD_VOL_CTL);
165 cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, volume);
167 core->last_change = jiffies;
170 /* ----------------------------------------------------------- */
172 static void set_audio_standard_BTSC(struct cx88_core *core, unsigned int sap,
173 u32 mode)
175 static const struct rlist btsc[] = {
176 {AUD_AFE_12DB_EN, 0x00000001},
177 {AUD_OUT1_SEL, 0x00000013},
178 {AUD_OUT1_SHIFT, 0x00000000},
179 {AUD_POLY0_DDS_CONSTANT, 0x0012010c},
180 {AUD_DMD_RA_DDS, 0x00c3e7aa},
181 {AUD_DBX_IN_GAIN, 0x00004734},
182 {AUD_DBX_WBE_GAIN, 0x00004640},
183 {AUD_DBX_SE_GAIN, 0x00008d31},
184 {AUD_DCOC_0_SRC, 0x0000001a},
185 {AUD_IIR1_4_SEL, 0x00000021},
186 {AUD_DCOC_PASS_IN, 0x00000003},
187 {AUD_DCOC_0_SHIFT_IN0, 0x0000000a},
188 {AUD_DCOC_0_SHIFT_IN1, 0x00000008},
189 {AUD_DCOC_1_SHIFT_IN0, 0x0000000a},
190 {AUD_DCOC_1_SHIFT_IN1, 0x00000008},
191 {AUD_DN0_FREQ, 0x0000283b},
192 {AUD_DN2_SRC_SEL, 0x00000008},
193 {AUD_DN2_FREQ, 0x00003000},
194 {AUD_DN2_AFC, 0x00000002},
195 {AUD_DN2_SHFT, 0x00000000},
196 {AUD_IIR2_2_SEL, 0x00000020},
197 {AUD_IIR2_2_SHIFT, 0x00000000},
198 {AUD_IIR2_3_SEL, 0x0000001f},
199 {AUD_IIR2_3_SHIFT, 0x00000000},
200 {AUD_CRDC1_SRC_SEL, 0x000003ce},
201 {AUD_CRDC1_SHIFT, 0x00000000},
202 {AUD_CORDIC_SHIFT_1, 0x00000007},
203 {AUD_DCOC_1_SRC, 0x0000001b},
204 {AUD_DCOC1_SHIFT, 0x00000000},
205 {AUD_RDSI_SEL, 0x00000008},
206 {AUD_RDSQ_SEL, 0x00000008},
207 {AUD_RDSI_SHIFT, 0x00000000},
208 {AUD_RDSQ_SHIFT, 0x00000000},
209 {AUD_POLYPH80SCALEFAC, 0x00000003},
210 { /* end of list */ },
212 static const struct rlist btsc_sap[] = {
213 {AUD_AFE_12DB_EN, 0x00000001},
214 {AUD_DBX_IN_GAIN, 0x00007200},
215 {AUD_DBX_WBE_GAIN, 0x00006200},
216 {AUD_DBX_SE_GAIN, 0x00006200},
217 {AUD_IIR1_1_SEL, 0x00000000},
218 {AUD_IIR1_3_SEL, 0x00000001},
219 {AUD_DN1_SRC_SEL, 0x00000007},
220 {AUD_IIR1_4_SHIFT, 0x00000006},
221 {AUD_IIR2_1_SHIFT, 0x00000000},
222 {AUD_IIR2_2_SHIFT, 0x00000000},
223 {AUD_IIR3_0_SHIFT, 0x00000000},
224 {AUD_IIR3_1_SHIFT, 0x00000000},
225 {AUD_IIR3_0_SEL, 0x0000000d},
226 {AUD_IIR3_1_SEL, 0x0000000e},
227 {AUD_DEEMPH1_SRC_SEL, 0x00000014},
228 {AUD_DEEMPH1_SHIFT, 0x00000000},
229 {AUD_DEEMPH1_G0, 0x00004000},
230 {AUD_DEEMPH1_A0, 0x00000000},
231 {AUD_DEEMPH1_B0, 0x00000000},
232 {AUD_DEEMPH1_A1, 0x00000000},
233 {AUD_DEEMPH1_B1, 0x00000000},
234 {AUD_OUT0_SEL, 0x0000003f},
235 {AUD_OUT1_SEL, 0x0000003f},
236 {AUD_DN1_AFC, 0x00000002},
237 {AUD_DCOC_0_SHIFT_IN0, 0x0000000a},
238 {AUD_DCOC_0_SHIFT_IN1, 0x00000008},
239 {AUD_DCOC_1_SHIFT_IN0, 0x0000000a},
240 {AUD_DCOC_1_SHIFT_IN1, 0x00000008},
241 {AUD_IIR1_0_SEL, 0x0000001d},
242 {AUD_IIR1_2_SEL, 0x0000001e},
243 {AUD_IIR2_1_SEL, 0x00000002},
244 {AUD_IIR2_2_SEL, 0x00000004},
245 {AUD_IIR3_2_SEL, 0x0000000f},
246 {AUD_DCOC2_SHIFT, 0x00000001},
247 {AUD_IIR3_2_SHIFT, 0x00000001},
248 {AUD_DEEMPH0_SRC_SEL, 0x00000014},
249 {AUD_CORDIC_SHIFT_1, 0x00000006},
250 {AUD_POLY0_DDS_CONSTANT, 0x000e4db2},
251 {AUD_DMD_RA_DDS, 0x00f696e6},
252 {AUD_IIR2_3_SEL, 0x00000025},
253 {AUD_IIR1_4_SEL, 0x00000021},
254 {AUD_DN1_FREQ, 0x0000c965},
255 {AUD_DCOC_PASS_IN, 0x00000003},
256 {AUD_DCOC_0_SRC, 0x0000001a},
257 {AUD_DCOC_1_SRC, 0x0000001b},
258 {AUD_DCOC1_SHIFT, 0x00000000},
259 {AUD_RDSI_SEL, 0x00000009},
260 {AUD_RDSQ_SEL, 0x00000009},
261 {AUD_RDSI_SHIFT, 0x00000000},
262 {AUD_RDSQ_SHIFT, 0x00000000},
263 {AUD_POLYPH80SCALEFAC, 0x00000003},
264 { /* end of list */ },
267 mode |= EN_FMRADIO_EN_RDS;
269 if (sap) {
270 dprintk("%s SAP (status: unknown)\n", __func__);
271 set_audio_start(core, SEL_SAP);
272 set_audio_registers(core, btsc_sap);
273 set_audio_finish(core, mode);
274 } else {
275 dprintk("%s (status: known-good)\n", __func__);
276 set_audio_start(core, SEL_BTSC);
277 set_audio_registers(core, btsc);
278 set_audio_finish(core, mode);
282 static void set_audio_standard_NICAM(struct cx88_core *core, u32 mode)
284 static const struct rlist nicam_l[] = {
285 {AUD_AFE_12DB_EN, 0x00000001},
286 {AUD_RATE_ADJ1, 0x00000060},
287 {AUD_RATE_ADJ2, 0x000000F9},
288 {AUD_RATE_ADJ3, 0x000001CC},
289 {AUD_RATE_ADJ4, 0x000002B3},
290 {AUD_RATE_ADJ5, 0x00000726},
291 {AUD_DEEMPHDENOM1_R, 0x0000F3D0},
292 {AUD_DEEMPHDENOM2_R, 0x00000000},
293 {AUD_ERRLOGPERIOD_R, 0x00000064},
294 {AUD_ERRINTRPTTHSHLD1_R, 0x00000FFF},
295 {AUD_ERRINTRPTTHSHLD2_R, 0x0000001F},
296 {AUD_ERRINTRPTTHSHLD3_R, 0x0000000F},
297 {AUD_POLYPH80SCALEFAC, 0x00000003},
298 {AUD_DMD_RA_DDS, 0x00C00000},
299 {AUD_PLL_INT, 0x0000001E},
300 {AUD_PLL_DDS, 0x00000000},
301 {AUD_PLL_FRAC, 0x0000E542},
302 {AUD_START_TIMER, 0x00000000},
303 {AUD_DEEMPHNUMER1_R, 0x000353DE},
304 {AUD_DEEMPHNUMER2_R, 0x000001B1},
305 {AUD_PDF_DDS_CNST_BYTE2, 0x06},
306 {AUD_PDF_DDS_CNST_BYTE1, 0x82},
307 {AUD_PDF_DDS_CNST_BYTE0, 0x12},
308 {AUD_QAM_MODE, 0x05},
309 {AUD_PHACC_FREQ_8MSB, 0x34},
310 {AUD_PHACC_FREQ_8LSB, 0x4C},
311 {AUD_DEEMPHGAIN_R, 0x00006680},
312 {AUD_RATE_THRES_DMD, 0x000000C0},
313 { /* end of list */ },
316 static const struct rlist nicam_bgdki_common[] = {
317 {AUD_AFE_12DB_EN, 0x00000001},
318 {AUD_RATE_ADJ1, 0x00000010},
319 {AUD_RATE_ADJ2, 0x00000040},
320 {AUD_RATE_ADJ3, 0x00000100},
321 {AUD_RATE_ADJ4, 0x00000400},
322 {AUD_RATE_ADJ5, 0x00001000},
323 {AUD_ERRLOGPERIOD_R, 0x00000fff},
324 {AUD_ERRINTRPTTHSHLD1_R, 0x000003ff},
325 {AUD_ERRINTRPTTHSHLD2_R, 0x000000ff},
326 {AUD_ERRINTRPTTHSHLD3_R, 0x0000003f},
327 {AUD_POLYPH80SCALEFAC, 0x00000003},
328 {AUD_DEEMPHGAIN_R, 0x000023c2},
329 {AUD_DEEMPHNUMER1_R, 0x0002a7bc},
330 {AUD_DEEMPHNUMER2_R, 0x0003023e},
331 {AUD_DEEMPHDENOM1_R, 0x0000f3d0},
332 {AUD_DEEMPHDENOM2_R, 0x00000000},
333 {AUD_PDF_DDS_CNST_BYTE2, 0x06},
334 {AUD_PDF_DDS_CNST_BYTE1, 0x82},
335 {AUD_QAM_MODE, 0x05},
336 { /* end of list */ },
339 static const struct rlist nicam_i[] = {
340 {AUD_PDF_DDS_CNST_BYTE0, 0x12},
341 {AUD_PHACC_FREQ_8MSB, 0x3a},
342 {AUD_PHACC_FREQ_8LSB, 0x93},
343 { /* end of list */ },
346 static const struct rlist nicam_default[] = {
347 {AUD_PDF_DDS_CNST_BYTE0, 0x16},
348 {AUD_PHACC_FREQ_8MSB, 0x34},
349 {AUD_PHACC_FREQ_8LSB, 0x4c},
350 { /* end of list */ },
353 set_audio_start(core,SEL_NICAM);
354 switch (core->tvaudio) {
355 case WW_L:
356 dprintk("%s SECAM-L NICAM (status: devel)\n", __func__);
357 set_audio_registers(core, nicam_l);
358 break;
359 case WW_I:
360 dprintk("%s PAL-I NICAM (status: known-good)\n", __func__);
361 set_audio_registers(core, nicam_bgdki_common);
362 set_audio_registers(core, nicam_i);
363 break;
364 default:
365 dprintk("%s PAL-BGDK NICAM (status: known-good)\n", __func__);
366 set_audio_registers(core, nicam_bgdki_common);
367 set_audio_registers(core, nicam_default);
368 break;
371 mode |= EN_DMTRX_LR | EN_DMTRX_BYPASS;
372 set_audio_finish(core, mode);
375 static void set_audio_standard_A2(struct cx88_core *core, u32 mode)
377 static const struct rlist a2_bgdk_common[] = {
378 {AUD_ERRLOGPERIOD_R, 0x00000064},
379 {AUD_ERRINTRPTTHSHLD1_R, 0x00000fff},
380 {AUD_ERRINTRPTTHSHLD2_R, 0x0000001f},
381 {AUD_ERRINTRPTTHSHLD3_R, 0x0000000f},
382 {AUD_PDF_DDS_CNST_BYTE2, 0x06},
383 {AUD_PDF_DDS_CNST_BYTE1, 0x82},
384 {AUD_PDF_DDS_CNST_BYTE0, 0x12},
385 {AUD_QAM_MODE, 0x05},
386 {AUD_PHACC_FREQ_8MSB, 0x34},
387 {AUD_PHACC_FREQ_8LSB, 0x4c},
388 {AUD_RATE_ADJ1, 0x00000100},
389 {AUD_RATE_ADJ2, 0x00000200},
390 {AUD_RATE_ADJ3, 0x00000300},
391 {AUD_RATE_ADJ4, 0x00000400},
392 {AUD_RATE_ADJ5, 0x00000500},
393 {AUD_THR_FR, 0x00000000},
394 {AAGC_HYST, 0x0000001a},
395 {AUD_PILOT_BQD_1_K0, 0x0000755b},
396 {AUD_PILOT_BQD_1_K1, 0x00551340},
397 {AUD_PILOT_BQD_1_K2, 0x006d30be},
398 {AUD_PILOT_BQD_1_K3, 0xffd394af},
399 {AUD_PILOT_BQD_1_K4, 0x00400000},
400 {AUD_PILOT_BQD_2_K0, 0x00040000},
401 {AUD_PILOT_BQD_2_K1, 0x002a4841},
402 {AUD_PILOT_BQD_2_K2, 0x00400000},
403 {AUD_PILOT_BQD_2_K3, 0x00000000},
404 {AUD_PILOT_BQD_2_K4, 0x00000000},
405 {AUD_MODE_CHG_TIMER, 0x00000040},
406 {AUD_AFE_12DB_EN, 0x00000001},
407 {AUD_CORDIC_SHIFT_0, 0x00000007},
408 {AUD_CORDIC_SHIFT_1, 0x00000007},
409 {AUD_DEEMPH0_G0, 0x00000380},
410 {AUD_DEEMPH1_G0, 0x00000380},
411 {AUD_DCOC_0_SRC, 0x0000001a},
412 {AUD_DCOC0_SHIFT, 0x00000000},
413 {AUD_DCOC_0_SHIFT_IN0, 0x0000000a},
414 {AUD_DCOC_0_SHIFT_IN1, 0x00000008},
415 {AUD_DCOC_PASS_IN, 0x00000003},
416 {AUD_IIR3_0_SEL, 0x00000021},
417 {AUD_DN2_AFC, 0x00000002},
418 {AUD_DCOC_1_SRC, 0x0000001b},
419 {AUD_DCOC1_SHIFT, 0x00000000},
420 {AUD_DCOC_1_SHIFT_IN0, 0x0000000a},
421 {AUD_DCOC_1_SHIFT_IN1, 0x00000008},
422 {AUD_IIR3_1_SEL, 0x00000023},
423 {AUD_RDSI_SEL, 0x00000017},
424 {AUD_RDSI_SHIFT, 0x00000000},
425 {AUD_RDSQ_SEL, 0x00000017},
426 {AUD_RDSQ_SHIFT, 0x00000000},
427 {AUD_PLL_INT, 0x0000001e},
428 {AUD_PLL_DDS, 0x00000000},
429 {AUD_PLL_FRAC, 0x0000e542},
430 {AUD_POLYPH80SCALEFAC, 0x00000001},
431 {AUD_START_TIMER, 0x00000000},
432 { /* end of list */ },
435 static const struct rlist a2_bg[] = {
436 {AUD_DMD_RA_DDS, 0x002a4f2f},
437 {AUD_C1_UP_THR, 0x00007000},
438 {AUD_C1_LO_THR, 0x00005400},
439 {AUD_C2_UP_THR, 0x00005400},
440 {AUD_C2_LO_THR, 0x00003000},
441 { /* end of list */ },
444 static const struct rlist a2_dk[] = {
445 {AUD_DMD_RA_DDS, 0x002a4f2f},
446 {AUD_C1_UP_THR, 0x00007000},
447 {AUD_C1_LO_THR, 0x00005400},
448 {AUD_C2_UP_THR, 0x00005400},
449 {AUD_C2_LO_THR, 0x00003000},
450 {AUD_DN0_FREQ, 0x00003a1c},
451 {AUD_DN2_FREQ, 0x0000d2e0},
452 { /* end of list */ },
455 static const struct rlist a1_i[] = {
456 {AUD_ERRLOGPERIOD_R, 0x00000064},
457 {AUD_ERRINTRPTTHSHLD1_R, 0x00000fff},
458 {AUD_ERRINTRPTTHSHLD2_R, 0x0000001f},
459 {AUD_ERRINTRPTTHSHLD3_R, 0x0000000f},
460 {AUD_PDF_DDS_CNST_BYTE2, 0x06},
461 {AUD_PDF_DDS_CNST_BYTE1, 0x82},
462 {AUD_PDF_DDS_CNST_BYTE0, 0x12},
463 {AUD_QAM_MODE, 0x05},
464 {AUD_PHACC_FREQ_8MSB, 0x3a},
465 {AUD_PHACC_FREQ_8LSB, 0x93},
466 {AUD_DMD_RA_DDS, 0x002a4f2f},
467 {AUD_PLL_INT, 0x0000001e},
468 {AUD_PLL_DDS, 0x00000004},
469 {AUD_PLL_FRAC, 0x0000e542},
470 {AUD_RATE_ADJ1, 0x00000100},
471 {AUD_RATE_ADJ2, 0x00000200},
472 {AUD_RATE_ADJ3, 0x00000300},
473 {AUD_RATE_ADJ4, 0x00000400},
474 {AUD_RATE_ADJ5, 0x00000500},
475 {AUD_THR_FR, 0x00000000},
476 {AUD_PILOT_BQD_1_K0, 0x0000755b},
477 {AUD_PILOT_BQD_1_K1, 0x00551340},
478 {AUD_PILOT_BQD_1_K2, 0x006d30be},
479 {AUD_PILOT_BQD_1_K3, 0xffd394af},
480 {AUD_PILOT_BQD_1_K4, 0x00400000},
481 {AUD_PILOT_BQD_2_K0, 0x00040000},
482 {AUD_PILOT_BQD_2_K1, 0x002a4841},
483 {AUD_PILOT_BQD_2_K2, 0x00400000},
484 {AUD_PILOT_BQD_2_K3, 0x00000000},
485 {AUD_PILOT_BQD_2_K4, 0x00000000},
486 {AUD_MODE_CHG_TIMER, 0x00000060},
487 {AUD_AFE_12DB_EN, 0x00000001},
488 {AAGC_HYST, 0x0000000a},
489 {AUD_CORDIC_SHIFT_0, 0x00000007},
490 {AUD_CORDIC_SHIFT_1, 0x00000007},
491 {AUD_C1_UP_THR, 0x00007000},
492 {AUD_C1_LO_THR, 0x00005400},
493 {AUD_C2_UP_THR, 0x00005400},
494 {AUD_C2_LO_THR, 0x00003000},
495 {AUD_DCOC_0_SRC, 0x0000001a},
496 {AUD_DCOC0_SHIFT, 0x00000000},
497 {AUD_DCOC_0_SHIFT_IN0, 0x0000000a},
498 {AUD_DCOC_0_SHIFT_IN1, 0x00000008},
499 {AUD_DCOC_PASS_IN, 0x00000003},
500 {AUD_IIR3_0_SEL, 0x00000021},
501 {AUD_DN2_AFC, 0x00000002},
502 {AUD_DCOC_1_SRC, 0x0000001b},
503 {AUD_DCOC1_SHIFT, 0x00000000},
504 {AUD_DCOC_1_SHIFT_IN0, 0x0000000a},
505 {AUD_DCOC_1_SHIFT_IN1, 0x00000008},
506 {AUD_IIR3_1_SEL, 0x00000023},
507 {AUD_DN0_FREQ, 0x000035a3},
508 {AUD_DN2_FREQ, 0x000029c7},
509 {AUD_CRDC0_SRC_SEL, 0x00000511},
510 {AUD_IIR1_0_SEL, 0x00000001},
511 {AUD_IIR1_1_SEL, 0x00000000},
512 {AUD_IIR3_2_SEL, 0x00000003},
513 {AUD_IIR3_2_SHIFT, 0x00000000},
514 {AUD_IIR3_0_SEL, 0x00000002},
515 {AUD_IIR2_0_SEL, 0x00000021},
516 {AUD_IIR2_0_SHIFT, 0x00000002},
517 {AUD_DEEMPH0_SRC_SEL, 0x0000000b},
518 {AUD_DEEMPH1_SRC_SEL, 0x0000000b},
519 {AUD_POLYPH80SCALEFAC, 0x00000001},
520 {AUD_START_TIMER, 0x00000000},
521 { /* end of list */ },
524 static const struct rlist am_l[] = {
525 {AUD_ERRLOGPERIOD_R, 0x00000064},
526 {AUD_ERRINTRPTTHSHLD1_R, 0x00000FFF},
527 {AUD_ERRINTRPTTHSHLD2_R, 0x0000001F},
528 {AUD_ERRINTRPTTHSHLD3_R, 0x0000000F},
529 {AUD_PDF_DDS_CNST_BYTE2, 0x48},
530 {AUD_PDF_DDS_CNST_BYTE1, 0x3D},
531 {AUD_QAM_MODE, 0x00},
532 {AUD_PDF_DDS_CNST_BYTE0, 0xf5},
533 {AUD_PHACC_FREQ_8MSB, 0x3a},
534 {AUD_PHACC_FREQ_8LSB, 0x4a},
535 {AUD_DEEMPHGAIN_R, 0x00006680},
536 {AUD_DEEMPHNUMER1_R, 0x000353DE},
537 {AUD_DEEMPHNUMER2_R, 0x000001B1},
538 {AUD_DEEMPHDENOM1_R, 0x0000F3D0},
539 {AUD_DEEMPHDENOM2_R, 0x00000000},
540 {AUD_FM_MODE_ENABLE, 0x00000007},
541 {AUD_POLYPH80SCALEFAC, 0x00000003},
542 {AUD_AFE_12DB_EN, 0x00000001},
543 {AAGC_GAIN, 0x00000000},
544 {AAGC_HYST, 0x00000018},
545 {AAGC_DEF, 0x00000020},
546 {AUD_DN0_FREQ, 0x00000000},
547 {AUD_POLY0_DDS_CONSTANT, 0x000E4DB2},
548 {AUD_DCOC_0_SRC, 0x00000021},
549 {AUD_IIR1_0_SEL, 0x00000000},
550 {AUD_IIR1_0_SHIFT, 0x00000007},
551 {AUD_IIR1_1_SEL, 0x00000002},
552 {AUD_IIR1_1_SHIFT, 0x00000000},
553 {AUD_DCOC_1_SRC, 0x00000003},
554 {AUD_DCOC1_SHIFT, 0x00000000},
555 {AUD_DCOC_PASS_IN, 0x00000000},
556 {AUD_IIR1_2_SEL, 0x00000023},
557 {AUD_IIR1_2_SHIFT, 0x00000000},
558 {AUD_IIR1_3_SEL, 0x00000004},
559 {AUD_IIR1_3_SHIFT, 0x00000007},
560 {AUD_IIR1_4_SEL, 0x00000005},
561 {AUD_IIR1_4_SHIFT, 0x00000007},
562 {AUD_IIR3_0_SEL, 0x00000007},
563 {AUD_IIR3_0_SHIFT, 0x00000000},
564 {AUD_DEEMPH0_SRC_SEL, 0x00000011},
565 {AUD_DEEMPH0_SHIFT, 0x00000000},
566 {AUD_DEEMPH0_G0, 0x00007000},
567 {AUD_DEEMPH0_A0, 0x00000000},
568 {AUD_DEEMPH0_B0, 0x00000000},
569 {AUD_DEEMPH0_A1, 0x00000000},
570 {AUD_DEEMPH0_B1, 0x00000000},
571 {AUD_DEEMPH1_SRC_SEL, 0x00000011},
572 {AUD_DEEMPH1_SHIFT, 0x00000000},
573 {AUD_DEEMPH1_G0, 0x00007000},
574 {AUD_DEEMPH1_A0, 0x00000000},
575 {AUD_DEEMPH1_B0, 0x00000000},
576 {AUD_DEEMPH1_A1, 0x00000000},
577 {AUD_DEEMPH1_B1, 0x00000000},
578 {AUD_OUT0_SEL, 0x0000003F},
579 {AUD_OUT1_SEL, 0x0000003F},
580 {AUD_DMD_RA_DDS, 0x00F5C285},
581 {AUD_PLL_INT, 0x0000001E},
582 {AUD_PLL_DDS, 0x00000000},
583 {AUD_PLL_FRAC, 0x0000E542},
584 {AUD_RATE_ADJ1, 0x00000100},
585 {AUD_RATE_ADJ2, 0x00000200},
586 {AUD_RATE_ADJ3, 0x00000300},
587 {AUD_RATE_ADJ4, 0x00000400},
588 {AUD_RATE_ADJ5, 0x00000500},
589 {AUD_RATE_THRES_DMD, 0x000000C0},
590 { /* end of list */ },
593 static const struct rlist a2_deemph50[] = {
594 {AUD_DEEMPH0_G0, 0x00000380},
595 {AUD_DEEMPH1_G0, 0x00000380},
596 {AUD_DEEMPHGAIN_R, 0x000011e1},
597 {AUD_DEEMPHNUMER1_R, 0x0002a7bc},
598 {AUD_DEEMPHNUMER2_R, 0x0003023c},
599 { /* end of list */ },
602 set_audio_start(core, SEL_A2);
603 switch (core->tvaudio) {
604 case WW_BG:
605 dprintk("%s PAL-BG A1/2 (status: known-good)\n", __func__);
606 set_audio_registers(core, a2_bgdk_common);
607 set_audio_registers(core, a2_bg);
608 set_audio_registers(core, a2_deemph50);
609 break;
610 case WW_DK:
611 dprintk("%s PAL-DK A1/2 (status: known-good)\n", __func__);
612 set_audio_registers(core, a2_bgdk_common);
613 set_audio_registers(core, a2_dk);
614 set_audio_registers(core, a2_deemph50);
615 break;
616 case WW_I:
617 dprintk("%s PAL-I A1 (status: known-good)\n", __func__);
618 set_audio_registers(core, a1_i);
619 set_audio_registers(core, a2_deemph50);
620 break;
621 case WW_L:
622 dprintk("%s AM-L (status: devel)\n", __func__);
623 set_audio_registers(core, am_l);
624 break;
625 default:
626 dprintk("%s Warning: wrong value\n", __func__);
627 return;
628 break;
631 mode |= EN_FMRADIO_EN_RDS | EN_DMTRX_SUMDIFF;
632 set_audio_finish(core, mode);
635 static void set_audio_standard_EIAJ(struct cx88_core *core)
637 static const struct rlist eiaj[] = {
638 /* TODO: eiaj register settings are not there yet ... */
640 { /* end of list */ },
642 dprintk("%s (status: unknown)\n", __func__);
644 set_audio_start(core, SEL_EIAJ);
645 set_audio_registers(core, eiaj);
646 set_audio_finish(core, EN_EIAJ_AUTO_STEREO);
649 static void set_audio_standard_FM(struct cx88_core *core,
650 enum cx88_deemph_type deemph)
652 static const struct rlist fm_deemph_50[] = {
653 {AUD_DEEMPH0_G0, 0x0C45},
654 {AUD_DEEMPH0_A0, 0x6262},
655 {AUD_DEEMPH0_B0, 0x1C29},
656 {AUD_DEEMPH0_A1, 0x3FC66},
657 {AUD_DEEMPH0_B1, 0x399A},
659 {AUD_DEEMPH1_G0, 0x0D80},
660 {AUD_DEEMPH1_A0, 0x6262},
661 {AUD_DEEMPH1_B0, 0x1C29},
662 {AUD_DEEMPH1_A1, 0x3FC66},
663 {AUD_DEEMPH1_B1, 0x399A},
665 {AUD_POLYPH80SCALEFAC, 0x0003},
666 { /* end of list */ },
668 static const struct rlist fm_deemph_75[] = {
669 {AUD_DEEMPH0_G0, 0x091B},
670 {AUD_DEEMPH0_A0, 0x6B68},
671 {AUD_DEEMPH0_B0, 0x11EC},
672 {AUD_DEEMPH0_A1, 0x3FC66},
673 {AUD_DEEMPH0_B1, 0x399A},
675 {AUD_DEEMPH1_G0, 0x0AA0},
676 {AUD_DEEMPH1_A0, 0x6B68},
677 {AUD_DEEMPH1_B0, 0x11EC},
678 {AUD_DEEMPH1_A1, 0x3FC66},
679 {AUD_DEEMPH1_B1, 0x399A},
681 {AUD_POLYPH80SCALEFAC, 0x0003},
682 { /* end of list */ },
685 /* It is enough to leave default values? */
686 /* No, it's not! The deemphasis registers are reset to the 75us
687 * values by default. Analyzing the spectrum of the decoded audio
688 * reveals that "no deemphasis" is the same as 75 us, while the 50 us
689 * setting results in less deemphasis. */
690 static const struct rlist fm_no_deemph[] = {
692 {AUD_POLYPH80SCALEFAC, 0x0003},
693 { /* end of list */ },
696 dprintk("%s (status: unknown)\n", __func__);
697 set_audio_start(core, SEL_FMRADIO);
699 switch (deemph) {
700 default:
701 case FM_NO_DEEMPH:
702 set_audio_registers(core, fm_no_deemph);
703 break;
705 case FM_DEEMPH_50:
706 set_audio_registers(core, fm_deemph_50);
707 break;
709 case FM_DEEMPH_75:
710 set_audio_registers(core, fm_deemph_75);
711 break;
714 set_audio_finish(core, EN_FMRADIO_AUTO_STEREO);
717 /* ----------------------------------------------------------- */
719 static int cx88_detect_nicam(struct cx88_core *core)
721 int i, j = 0;
723 dprintk("start nicam autodetect.\n");
725 for (i = 0; i < 6; i++) {
726 /* if bit1=1 then nicam is detected */
727 j += ((cx_read(AUD_NICAM_STATUS2) & 0x02) >> 1);
729 if (j == 1) {
730 dprintk("nicam is detected.\n");
731 return 1;
734 /* wait a little bit for next reading status */
735 msleep(10);
738 dprintk("nicam is not detected.\n");
739 return 0;
742 void cx88_set_tvaudio(struct cx88_core *core)
744 switch (core->tvaudio) {
745 case WW_BTSC:
746 set_audio_standard_BTSC(core, 0, EN_BTSC_AUTO_STEREO);
747 break;
748 case WW_BG:
749 case WW_DK:
750 case WW_M:
751 case WW_I:
752 case WW_L:
753 /* prepare all dsp registers */
754 set_audio_standard_A2(core, EN_A2_FORCE_MONO1);
756 /* set nicam mode - otherwise
757 AUD_NICAM_STATUS2 contains wrong values */
758 set_audio_standard_NICAM(core, EN_NICAM_AUTO_STEREO);
759 if (0 == cx88_detect_nicam(core)) {
760 /* fall back to fm / am mono */
761 set_audio_standard_A2(core, EN_A2_FORCE_MONO1);
762 core->audiomode_current = V4L2_TUNER_MODE_MONO;
763 core->use_nicam = 0;
764 } else {
765 core->use_nicam = 1;
767 break;
768 case WW_EIAJ:
769 set_audio_standard_EIAJ(core);
770 break;
771 case WW_FM:
772 set_audio_standard_FM(core, radio_deemphasis);
773 break;
774 case WW_I2SADC:
775 set_audio_start(core, 0x01);
776 /* Slave/Philips/Autobaud */
777 cx_write(AUD_I2SINPUTCNTL, 0);
778 /* Switch to "I2S ADC mode" */
779 cx_write(AUD_I2SCNTL, 0x1);
780 set_audio_finish(core, EN_I2SIN_ENABLE);
781 break;
782 case WW_NONE:
783 default:
784 printk("%s/0: unknown tv audio mode [%d]\n",
785 core->name, core->tvaudio);
786 break;
788 return;
791 void cx88_newstation(struct cx88_core *core)
793 core->audiomode_manual = UNSET;
794 core->last_change = jiffies;
797 void cx88_get_stereo(struct cx88_core *core, struct v4l2_tuner *t)
799 static char *m[] = { "stereo", "dual mono", "mono", "sap" };
800 static char *p[] = { "no pilot", "pilot c1", "pilot c2", "?" };
801 u32 reg, mode, pilot;
803 reg = cx_read(AUD_STATUS);
804 mode = reg & 0x03;
805 pilot = (reg >> 2) & 0x03;
807 if (core->astat != reg)
808 dprintk("AUD_STATUS: 0x%x [%s/%s] ctl=%s\n",
809 reg, m[mode], p[pilot],
810 aud_ctl_names[cx_read(AUD_CTL) & 63]);
811 core->astat = reg;
813 t->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_SAP |
814 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
815 t->rxsubchans = UNSET;
816 t->audmode = V4L2_TUNER_MODE_MONO;
818 switch (mode) {
819 case 0:
820 t->audmode = V4L2_TUNER_MODE_STEREO;
821 break;
822 case 1:
823 t->audmode = V4L2_TUNER_MODE_LANG2;
824 break;
825 case 2:
826 t->audmode = V4L2_TUNER_MODE_MONO;
827 break;
828 case 3:
829 t->audmode = V4L2_TUNER_MODE_SAP;
830 break;
833 switch (core->tvaudio) {
834 case WW_BTSC:
835 case WW_BG:
836 case WW_DK:
837 case WW_M:
838 case WW_EIAJ:
839 if (!core->use_nicam) {
840 t->rxsubchans = cx88_dsp_detect_stereo_sap(core);
841 break;
843 break;
844 default:
845 /* nothing */
846 break;
849 /* If software stereo detection is not supported... */
850 if (UNSET == t->rxsubchans) {
851 t->rxsubchans = V4L2_TUNER_SUB_MONO;
852 /* If the hardware itself detected stereo, also return
853 stereo as an available subchannel */
854 if (V4L2_TUNER_MODE_STEREO == t->audmode)
855 t->rxsubchans |= V4L2_TUNER_SUB_STEREO;
857 return;
860 void cx88_set_stereo(struct cx88_core *core, u32 mode, int manual)
862 u32 ctl = UNSET;
863 u32 mask = UNSET;
865 if (manual) {
866 core->audiomode_manual = mode;
867 } else {
868 if (UNSET != core->audiomode_manual)
869 return;
871 core->audiomode_current = mode;
873 switch (core->tvaudio) {
874 case WW_BTSC:
875 switch (mode) {
876 case V4L2_TUNER_MODE_MONO:
877 set_audio_standard_BTSC(core, 0, EN_BTSC_FORCE_MONO);
878 break;
879 case V4L2_TUNER_MODE_LANG1:
880 set_audio_standard_BTSC(core, 0, EN_BTSC_AUTO_STEREO);
881 break;
882 case V4L2_TUNER_MODE_LANG2:
883 set_audio_standard_BTSC(core, 1, EN_BTSC_FORCE_SAP);
884 break;
885 case V4L2_TUNER_MODE_STEREO:
886 case V4L2_TUNER_MODE_LANG1_LANG2:
887 set_audio_standard_BTSC(core, 0, EN_BTSC_FORCE_STEREO);
888 break;
890 break;
891 case WW_BG:
892 case WW_DK:
893 case WW_M:
894 case WW_I:
895 case WW_L:
896 if (1 == core->use_nicam) {
897 switch (mode) {
898 case V4L2_TUNER_MODE_MONO:
899 case V4L2_TUNER_MODE_LANG1:
900 set_audio_standard_NICAM(core,
901 EN_NICAM_FORCE_MONO1);
902 break;
903 case V4L2_TUNER_MODE_LANG2:
904 set_audio_standard_NICAM(core,
905 EN_NICAM_FORCE_MONO2);
906 break;
907 case V4L2_TUNER_MODE_STEREO:
908 case V4L2_TUNER_MODE_LANG1_LANG2:
909 set_audio_standard_NICAM(core,
910 EN_NICAM_FORCE_STEREO);
911 break;
913 } else {
914 if ((core->tvaudio == WW_I) || (core->tvaudio == WW_L)) {
915 /* fall back to fm / am mono */
916 set_audio_standard_A2(core, EN_A2_FORCE_MONO1);
917 } else {
918 /* TODO: Add A2 autodection */
919 mask = 0x3f;
920 switch (mode) {
921 case V4L2_TUNER_MODE_MONO:
922 case V4L2_TUNER_MODE_LANG1:
923 ctl = EN_A2_FORCE_MONO1;
924 break;
925 case V4L2_TUNER_MODE_LANG2:
926 ctl = EN_A2_FORCE_MONO2;
927 break;
928 case V4L2_TUNER_MODE_STEREO:
929 case V4L2_TUNER_MODE_LANG1_LANG2:
930 ctl = EN_A2_FORCE_STEREO;
931 break;
935 break;
936 case WW_FM:
937 switch (mode) {
938 case V4L2_TUNER_MODE_MONO:
939 ctl = EN_FMRADIO_FORCE_MONO;
940 mask = 0x3f;
941 break;
942 case V4L2_TUNER_MODE_STEREO:
943 ctl = EN_FMRADIO_AUTO_STEREO;
944 mask = 0x3f;
945 break;
947 break;
948 case WW_I2SADC:
949 /* DO NOTHING */
950 break;
953 if (UNSET != ctl) {
954 dprintk("cx88_set_stereo: mask 0x%x, ctl 0x%x "
955 "[status=0x%x,ctl=0x%x,vol=0x%x]\n",
956 mask, ctl, cx_read(AUD_STATUS),
957 cx_read(AUD_CTL), cx_sread(SHADOW_AUD_VOL_CTL));
958 cx_andor(AUD_CTL, mask, ctl);
960 return;
963 int cx88_audio_thread(void *data)
965 struct cx88_core *core = data;
966 struct v4l2_tuner t;
967 u32 mode = 0;
969 dprintk("cx88: tvaudio thread started\n");
970 set_freezable();
971 for (;;) {
972 msleep_interruptible(1000);
973 if (kthread_should_stop())
974 break;
975 try_to_freeze();
977 switch (core->tvaudio) {
978 case WW_BG:
979 case WW_DK:
980 case WW_M:
981 case WW_I:
982 case WW_L:
983 if (core->use_nicam)
984 goto hw_autodetect;
986 /* just monitor the audio status for now ... */
987 memset(&t, 0, sizeof(t));
988 cx88_get_stereo(core, &t);
990 if (UNSET != core->audiomode_manual)
991 /* manually set, don't do anything. */
992 continue;
994 /* monitor signal and set stereo if available */
995 if (t.rxsubchans & V4L2_TUNER_SUB_STEREO)
996 mode = V4L2_TUNER_MODE_STEREO;
997 else
998 mode = V4L2_TUNER_MODE_MONO;
999 if (mode == core->audiomode_current)
1000 continue;
1001 /* automatically switch to best available mode */
1002 cx88_set_stereo(core, mode, 0);
1003 break;
1004 default:
1005 hw_autodetect:
1006 /* stereo autodetection is supported by hardware so
1007 we don't need to do it manually. Do nothing. */
1008 break;
1012 dprintk("cx88: tvaudio thread exiting\n");
1013 return 0;
1016 /* ----------------------------------------------------------- */
1018 EXPORT_SYMBOL(cx88_set_tvaudio);
1019 EXPORT_SYMBOL(cx88_newstation);
1020 EXPORT_SYMBOL(cx88_set_stereo);
1021 EXPORT_SYMBOL(cx88_get_stereo);
1022 EXPORT_SYMBOL(cx88_audio_thread);
1025 * Local variables:
1026 * c-basic-offset: 8
1027 * End:
1028 * 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