2 cx88x-audio.c - Conexant CX23880/23881 audio downstream driver driver
4 (c) 2001 Michael Eskin, Tom Zakrajsek [Windows version]
5 (c) 2002 Yurij Sysoev <yurij@naturesoft.net>
6 (c) 2003 Gerd Knorr <kraxel@bytesex.org>
8 -----------------------------------------------------------------------
10 Lot of voodoo here. Even the data sheet doesn't help to
11 understand what is going on here, the documentation for the audio
12 part of the cx2388x chip is *very* bad.
14 Some of this comes from party done linux driver sources I got from
17 Some comes from the dscaler sources, one of the dscaler driver guy works
20 -----------------------------------------------------------------------
22 This program is free software; you can redistribute it and/or modify
23 it under the terms of the GNU General Public License as published by
24 the Free Software Foundation; either version 2 of the License, or
25 (at your option) any later version.
27 This program is distributed in the hope that it will be useful,
28 but WITHOUT ANY WARRANTY; without even the implied warranty of
29 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 GNU General Public License for more details.
32 You should have received a copy of the GNU General Public License
33 along with this program; if not, write to the Free Software
34 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
37 #include <linux/module.h>
38 #include <linux/errno.h>
39 #include <linux/kernel.h>
40 #include <linux/slab.h>
42 #include <linux/poll.h>
43 #include <linux/pci.h>
44 #include <linux/signal.h>
45 #include <linux/ioport.h>
46 #include <linux/sched.h>
47 #include <linux/types.h>
48 #include <linux/interrupt.h>
49 #include <linux/vmalloc.h>
50 #include <linux/init.h>
54 static unsigned int audio_debug = 1;
55 MODULE_PARM(audio_debug,"i");
56 MODULE_PARM_DESC(audio_debug,"enable debug messages [audio]");
58 #define dprintk(fmt, arg...) if (audio_debug) \
59 printk(KERN_DEBUG "%s: " fmt, dev->name , ## arg)
61 /* ----------------------------------------------------------- */
68 static void set_audio_registers(struct cx8800_dev *dev,
69 const struct rlist *l)
73 for (i = 0; l[i].reg; i++) {
75 case AUD_PDF_DDS_CNST_BYTE2:
76 case AUD_PDF_DDS_CNST_BYTE1:
77 case AUD_PDF_DDS_CNST_BYTE0:
79 case AUD_PHACC_FREQ_8MSB:
80 case AUD_PHACC_FREQ_8LSB:
81 cx_writeb(l[i].reg, l[i].val);
84 cx_write(l[i].reg, l[i].val);
90 static void set_audio_start(struct cx8800_dev *dev,
94 cx_write(AUD_VOL_CTL, (1 << 6));
96 // increase level of input by 12dB
97 cx_write(AUD_AFE_12DB_EN, 0x0001);
100 cx_write(AUD_CTL, 0x0000);
101 cx_write(AUD_INIT, mode);
102 cx_write(AUD_INIT_LD, 0x0001);
103 cx_write(AUD_SOFT_RESET, 0x0001);
105 cx_write(AUD_CTL, ctl);
108 static void set_audio_finish(struct cx8800_dev *dev)
112 // finish programming
113 cx_write(AUD_SOFT_RESET, 0x0000);
115 // start audio processing
116 cx_set(AUD_CTL, EN_DAC_ENABLE);
119 volume = cx_sread(SHADOW_AUD_VOL_CTL);
120 cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, volume);
123 /* ----------------------------------------------------------- */
125 static void set_audio_standard_BTSC(struct cx8800_dev *dev, unsigned int sap)
127 static const struct rlist btsc[] = {
128 /* Magic stuff from leadtek driver + datasheet.*/
129 { AUD_DBX_IN_GAIN, 0x4734 },
130 { AUD_DBX_WBE_GAIN, 0x4640 },
131 { AUD_DBX_SE_GAIN, 0x8D31 },
132 { AUD_DEEMPH0_G0, 0x1604 },
133 { AUD_PHASE_FIX_CTL, 0x0020 },
135 { /* end of list */ },
138 dprintk("%s (status: unknown)\n",__FUNCTION__);
139 set_audio_start(dev, 0x0001,
140 EN_BTSC_AUTO_STEREO);
141 set_audio_registers(dev, btsc);
142 set_audio_finish(dev);
145 static void set_audio_standard_NICAM(struct cx8800_dev *dev)
147 static const struct rlist nicam[] = {
148 { AUD_RATE_ADJ1, 0x00000010 },
149 { AUD_RATE_ADJ2, 0x00000040 },
150 { AUD_RATE_ADJ3, 0x00000100 },
151 { AUD_RATE_ADJ4, 0x00000400 },
152 { AUD_RATE_ADJ5, 0x00001000 },
153 // { AUD_DMD_RA_DDS, 0x00c0d5ce },
155 // setup QAM registers
156 { AUD_PDF_DDS_CNST_BYTE2, 0x06 },
157 { AUD_PDF_DDS_CNST_BYTE1, 0x82 },
158 { AUD_PDF_DDS_CNST_BYTE0, 0x16 },
159 { AUD_QAM_MODE, 0x05 },
160 { AUD_PHACC_FREQ_8MSB, 0x34 },
161 { AUD_PHACC_FREQ_8LSB, 0x4c },
163 { /* end of list */ },
166 dprintk("%s (status: unknown)\n",__FUNCTION__);
167 set_audio_start(dev, 0x0010,
168 EN_DMTRX_LR | EN_NICAM_FORCE_STEREO);
169 set_audio_registers(dev, nicam);
170 set_audio_finish(dev);
173 static void set_audio_standard_NICAM_L(struct cx8800_dev *dev)
175 /* This is officially wierd.. register dumps indicate windows
176 * uses audio mode 4.. A2. Let's operate and find out. */
178 static const struct rlist nicam_l[] = {
179 // setup QAM registers
180 { AUD_PDF_DDS_CNST_BYTE2, 0x48 },
181 { AUD_PDF_DDS_CNST_BYTE1, 0x3d },
182 { AUD_PDF_DDS_CNST_BYTE0, 0xf5 },
183 { AUD_QAM_MODE, 0x00 },
184 { AUD_PHACC_FREQ_8MSB, 0x3a },
185 { AUD_PHACC_FREQ_8LSB, 0x4a },
187 { AUD_POLY0_DDS_CONSTANT, 0x000e4db2 },
188 { AUD_IIR1_0_SEL, 0x00000000 },
189 { AUD_IIR1_1_SEL, 0x00000002 },
190 { AUD_IIR1_2_SEL, 0x00000023 },
191 { AUD_IIR1_3_SEL, 0x00000004 },
192 { AUD_IIR1_4_SEL, 0x00000005 },
193 { AUD_IIR1_5_SEL, 0x00000007 },
194 { AUD_IIR1_0_SHIFT, 0x00000007 },
195 { AUD_IIR1_1_SHIFT, 0x00000000 },
196 { AUD_IIR1_2_SHIFT, 0x00000000 },
197 { AUD_IIR1_3_SHIFT, 0x00000007 },
198 { AUD_IIR1_4_SHIFT, 0x00000007 },
199 { AUD_IIR1_5_SHIFT, 0x00000007 },
200 { AUD_IIR2_0_SEL, 0x00000002 },
201 { AUD_IIR2_1_SEL, 0x00000003 },
202 { AUD_IIR2_2_SEL, 0x00000004 },
203 { AUD_IIR2_3_SEL, 0x00000005 },
204 { AUD_IIR3_0_SEL, 0x00000007 },
205 { AUD_IIR3_1_SEL, 0x00000023 },
206 { AUD_IIR3_2_SEL, 0x00000016 },
207 { AUD_IIR4_0_SHIFT, 0x00000000 },
208 { AUD_IIR4_1_SHIFT, 0x00000000 },
209 { AUD_IIR3_2_SHIFT, 0x00000002 },
210 { AUD_IIR4_0_SEL, 0x0000001d },
211 { AUD_IIR4_1_SEL, 0x00000019 },
212 { AUD_IIR4_2_SEL, 0x00000008 },
213 { AUD_IIR4_0_SHIFT, 0x00000000 },
214 { AUD_IIR4_1_SHIFT, 0x00000007 },
215 { AUD_IIR4_2_SHIFT, 0x00000007 },
216 { AUD_IIR4_0_CA0, 0x0003e57e },
217 { AUD_IIR4_0_CA1, 0x00005e11 },
218 { AUD_IIR4_0_CA2, 0x0003a7cf },
219 { AUD_IIR4_0_CB0, 0x00002368 },
220 { AUD_IIR4_0_CB1, 0x0003bf1b },
221 { AUD_IIR4_1_CA0, 0x00006349 },
222 { AUD_IIR4_1_CA1, 0x00006f27 },
223 { AUD_IIR4_1_CA2, 0x0000e7a3 },
224 { AUD_IIR4_1_CB0, 0x00005653 },
225 { AUD_IIR4_1_CB1, 0x0000cf97 },
226 { AUD_IIR4_2_CA0, 0x00006349 },
227 { AUD_IIR4_2_CA1, 0x00006f27 },
228 { AUD_IIR4_2_CA2, 0x0000e7a3 },
229 { AUD_IIR4_2_CB0, 0x00005653 },
230 { AUD_IIR4_2_CB1, 0x0000cf97 },
231 { AUD_HP_MD_IIR4_1, 0x00000001 },
232 { AUD_HP_PROG_IIR4_1, 0x0000001a },
233 { AUD_DN0_FREQ, 0x00000000 },
234 { AUD_DN1_FREQ, 0x00003318 },
235 { AUD_DN1_SRC_SEL, 0x00000017 },
236 { AUD_DN1_SHFT, 0x00000007 },
237 { AUD_DN1_AFC, 0x00000000 },
238 { AUD_DN1_FREQ_SHIFT, 0x00000000 },
239 { AUD_DN2_FREQ, 0x00003551 },
240 { AUD_DN2_SRC_SEL, 0x00000001 },
241 { AUD_DN2_SHFT, 0x00000000 },
242 { AUD_DN2_AFC, 0x00000002 },
243 { AUD_DN2_FREQ_SHIFT, 0x00000000 },
244 { AUD_PDET_SRC, 0x00000014 },
245 { AUD_PDET_SHIFT, 0x00000000 },
246 { AUD_DEEMPH0_SRC_SEL, 0x00000011 },
247 { AUD_DEEMPH1_SRC_SEL, 0x00000011 },
248 { AUD_DEEMPH0_SHIFT, 0x00000000 },
249 { AUD_DEEMPH1_SHIFT, 0x00000000 },
250 { AUD_DEEMPH0_G0, 0x00007000 },
251 { AUD_DEEMPH0_A0, 0x00000000 },
252 { AUD_DEEMPH0_B0, 0x00000000 },
253 { AUD_DEEMPH0_A1, 0x00000000 },
254 { AUD_DEEMPH0_B1, 0x00000000 },
255 { AUD_DEEMPH1_G0, 0x00007000 },
256 { AUD_DEEMPH1_A0, 0x00000000 },
257 { AUD_DEEMPH1_B0, 0x00000000 },
258 { AUD_DEEMPH1_A1, 0x00000000 },
259 { AUD_DEEMPH1_B1, 0x00000000 },
260 { AUD_DMD_RA_DDS, 0x00f5c285 },
261 { AUD_RATE_ADJ1, 0x00000100 },
262 { AUD_RATE_ADJ2, 0x00000200 },
263 { AUD_RATE_ADJ3, 0x00000300 },
264 { AUD_RATE_ADJ4, 0x00000400 },
265 { AUD_RATE_ADJ5, 0x00000500 },
266 { AUD_C2_UP_THR, 0x00005400 },
267 { AUD_C2_LO_THR, 0x00003000 },
268 { AUD_C1_UP_THR, 0x00007000 },
269 { AUD_C2_LO_THR, 0x00005400 },
270 { AUD_CTL, 0x0000100c },
271 { AUD_DCOC_0_SRC, 0x00000021 },
272 { AUD_DCOC_1_SRC, 0x00000003 },
273 { AUD_DCOC1_SHIFT, 0x00000000 },
274 { AUD_DCOC_1_SHIFT_IN0, 0x0000000a },
275 { AUD_DCOC_1_SHIFT_IN1, 0x00000008 },
276 { AUD_DCOC_PASS_IN, 0x00000000 },
277 { AUD_DCOC_2_SRC, 0x0000001b },
278 { AUD_IIR4_0_SEL, 0x0000001d },
279 { AUD_POLY0_DDS_CONSTANT, 0x000e4db2 },
280 { AUD_PHASE_FIX_CTL, 0x00000000 },
281 { AUD_CORDIC_SHIFT_1, 0x00000007 },
282 { AUD_PLL_EN, 0x00000000 },
283 { AUD_PLL_PRESCALE, 0x00000002 },
284 { AUD_PLL_INT, 0x0000001e },
285 { AUD_OUT1_SHIFT, 0x00000000 },
287 { /* end of list */ },
290 dprintk("%s (status: unknown)\n",__FUNCTION__);
291 set_audio_start(dev, 0x0004,
293 set_audio_registers(dev, nicam_l);
294 set_audio_finish(dev);
297 static void set_audio_standard_A2(struct cx8800_dev *dev)
299 /* from dscaler cvs */
300 static const struct rlist a2[] = {
301 { AUD_PDF_DDS_CNST_BYTE2, 0x06 },
302 { AUD_PDF_DDS_CNST_BYTE1, 0x82 },
303 { AUD_PDF_DDS_CNST_BYTE0, 0x12 },
304 { AUD_QAM_MODE, 0x05 },
305 { AUD_PHACC_FREQ_8MSB, 0x34 },
306 { AUD_PHACC_FREQ_8LSB, 0x4c },
308 { AUD_RATE_ADJ1, 0x00001000 },
309 { AUD_RATE_ADJ2, 0x00002000 },
310 { AUD_RATE_ADJ3, 0x00003000 },
311 { AUD_RATE_ADJ4, 0x00004000 },
312 { AUD_RATE_ADJ5, 0x00005000 },
313 { AUD_THR_FR, 0x00000000 },
314 { AAGC_HYST, 0x0000001a },
315 { AUD_PILOT_BQD_1_K0, 0x0000755b },
316 { AUD_PILOT_BQD_1_K1, 0x00551340 },
317 { AUD_PILOT_BQD_1_K2, 0x006d30be },
318 { AUD_PILOT_BQD_1_K3, 0xffd394af },
319 { AUD_PILOT_BQD_1_K4, 0x00400000 },
320 { AUD_PILOT_BQD_2_K0, 0x00040000 },
321 { AUD_PILOT_BQD_2_K1, 0x002a4841 },
322 { AUD_PILOT_BQD_2_K2, 0x00400000 },
323 { AUD_PILOT_BQD_2_K3, 0x00000000 },
324 { AUD_PILOT_BQD_2_K4, 0x00000000 },
325 { AUD_MODE_CHG_TIMER, 0x00000040 },
326 { AUD_START_TIMER, 0x00000200 },
327 { AUD_AFE_12DB_EN, 0x00000000 },
328 { AUD_CORDIC_SHIFT_0, 0x00000007 },
329 { AUD_CORDIC_SHIFT_1, 0x00000007 },
330 { AUD_DEEMPH0_G0, 0x00000380 },
331 { AUD_DEEMPH1_G0, 0x00000380 },
332 { AUD_DCOC_0_SRC, 0x0000001a },
333 { AUD_DCOC0_SHIFT, 0x00000000 },
334 { AUD_DCOC_0_SHIFT_IN0, 0x0000000a },
335 { AUD_DCOC_0_SHIFT_IN1, 0x00000008 },
336 { AUD_DCOC_PASS_IN, 0x00000003 },
337 { AUD_IIR3_0_SEL, 0x00000021 },
338 { AUD_DN2_AFC, 0x00000002 },
339 { AUD_DCOC_1_SRC, 0x0000001b },
340 { AUD_DCOC1_SHIFT, 0x00000000 },
341 { AUD_DCOC_1_SHIFT_IN0, 0x0000000a },
342 { AUD_DCOC_1_SHIFT_IN1, 0x00000008 },
343 { AUD_IIR3_1_SEL, 0x00000023 },
344 { AUD_RDSI_SEL, 0x00000017 },
345 { AUD_RDSI_SHIFT, 0x00000000 },
346 { AUD_RDSQ_SEL, 0x00000017 },
347 { AUD_RDSQ_SHIFT, 0x00000000 },
348 { AUD_POLYPH80SCALEFAC, 0x00000001 },
351 { AUD_DMD_RA_DDS, 0x002a73bd },
352 { AUD_C1_UP_THR, 0x00007000 },
353 { AUD_C1_LO_THR, 0x00005400 },
354 { AUD_C2_UP_THR, 0x00005400 },
355 { AUD_C2_LO_THR, 0x00003000 },
358 // found this in WDM-driver for A2, must country spec.
360 { AUD_DMD_RA_DDS, 0x002a73bd },
361 { AUD_C1_UP_THR, 0x00007000 },
362 { AUD_C1_LO_THR, 0x00005400 },
363 { AUD_C2_UP_THR, 0x00005400 },
364 { AUD_C2_LO_THR, 0x00003000 },
365 { AUD_DN0_FREQ, 0x00003a1c },
366 { AUD_DN2_FREQ, 0x0000d2e0 },
369 { AUD_DMD_RA_DDS, 0x002a2873 },
370 { AUD_C1_UP_THR, 0x00003c00 },
371 { AUD_C1_LO_THR, 0x00003000 },
372 { AUD_C2_UP_THR, 0x00006000 },
373 { AUD_C2_LO_THR, 0x00003c00 },
374 { AUD_DN0_FREQ, 0x00002836 },
375 { AUD_DN1_FREQ, 0x00003418 },
376 { AUD_DN2_FREQ, 0x000029c7 },
377 { AUD_POLY0_DDS_CONSTANT, 0x000a7540 },
380 { /* end of list */ },
383 static const struct rlist a2_old[] = {
384 { AUD_DN0_FREQ, 0x0000312b },
385 { AUD_POLY0_DDS_CONSTANT, 0x000a62b4 },
386 { AUD_IIR1_0_SEL, 0x00000000 },
387 { AUD_IIR1_1_SEL, 0x00000001 },
388 { AUD_IIR1_2_SEL, 0x0000001f },
389 { AUD_IIR1_3_SEL, 0x00000020 },
390 { AUD_IIR1_4_SEL, 0x00000023 },
391 { AUD_IIR1_5_SEL, 0x00000007 },
392 { AUD_IIR1_0_SHIFT, 0x00000000 },
393 { AUD_IIR1_1_SHIFT, 0x00000000 },
394 { AUD_IIR1_2_SHIFT, 0x00000007 },
395 { AUD_IIR1_3_SHIFT, 0x00000007 },
396 { AUD_IIR1_4_SHIFT, 0x00000007 },
397 { AUD_IIR1_5_SHIFT, 0x00000000 },
398 { AUD_IIR2_0_SEL, 0x00000002 },
399 { AUD_IIR2_1_SEL, 0x00000003 },
400 { AUD_IIR2_2_SEL, 0x00000004 },
401 { AUD_IIR2_3_SEL, 0x00000005 },
402 { AUD_IIR3_0_SEL, 0x00000021 },
403 { AUD_IIR3_1_SEL, 0x00000023 },
404 { AUD_IIR3_2_SEL, 0x00000016 },
405 { AUD_IIR3_0_SHIFT, 0x00000000 },
406 { AUD_IIR3_1_SHIFT, 0x00000000 },
407 { AUD_IIR3_2_SHIFT, 0x00000000 },
408 { AUD_IIR4_0_SEL, 0x0000001d },
409 { AUD_IIR4_1_SEL, 0x00000019 },
410 { AUD_IIR4_2_SEL, 0x00000008 },
411 { AUD_IIR4_0_SHIFT, 0x00000000 },
412 { AUD_IIR4_1_SHIFT, 0x00000000 },
413 { AUD_IIR4_2_SHIFT, 0x00000001 },
414 { AUD_IIR4_0_CA0, 0x0003e57e },
415 { AUD_IIR4_0_CA1, 0x00005e11 },
416 { AUD_IIR4_0_CA2, 0x0003a7cf },
417 { AUD_IIR4_0_CB0, 0x00002368 },
418 { AUD_IIR4_0_CB1, 0x0003bf1b },
419 { AUD_IIR4_1_CA0, 0x00006349 },
420 { AUD_IIR4_1_CA1, 0x00006f27 },
421 { AUD_IIR4_1_CA2, 0x0000e7a3 },
422 { AUD_IIR4_1_CB0, 0x00005653 },
423 { AUD_IIR4_1_CB1, 0x0000cf97 },
424 { AUD_IIR4_2_CA0, 0x00006349 },
425 { AUD_IIR4_2_CA1, 0x00006f27 },
426 { AUD_IIR4_2_CA2, 0x0000e7a3 },
427 { AUD_IIR4_2_CB0, 0x00005653 },
428 { AUD_IIR4_2_CB1, 0x0000cf97 },
429 { AUD_HP_MD_IIR4_1, 0x00000001 },
430 { AUD_HP_PROG_IIR4_1, 0x00000017 },
431 { AUD_DN1_FREQ, 0x00003618 },
432 { AUD_DN1_SRC_SEL, 0x00000017 },
433 { AUD_DN1_SHFT, 0x00000007 },
434 { AUD_DN1_AFC, 0x00000000 },
435 { AUD_DN1_FREQ_SHIFT, 0x00000000 },
436 { AUD_DN2_SRC_SEL, 0x00000040 },
437 { AUD_DN2_SHFT, 0x00000000 },
438 { AUD_DN2_AFC, 0x00000002 },
439 { AUD_DN2_FREQ, 0x0000caaf },
440 { AUD_DN2_FREQ_SHIFT, 0x00000000 },
441 { AUD_PDET_SRC, 0x00000014 },
442 { AUD_PDET_SHIFT, 0x00000000 },
443 { AUD_DEEMPH0_SRC_SEL, 0x00000011 },
444 { AUD_DEEMPH1_SRC_SEL, 0x00000013 },
445 { AUD_DEEMPH0_SHIFT, 0x00000000 },
446 { AUD_DEEMPH1_SHIFT, 0x00000000 },
447 { AUD_DEEMPH0_G0, 0x000004da },
448 { AUD_DEEMPH0_A0, 0x0000777a },
449 { AUD_DEEMPH0_B0, 0x00000000 },
450 { AUD_DEEMPH0_A1, 0x0003f062 },
451 { AUD_DEEMPH0_B1, 0x00000000 },
452 { AUD_DEEMPH1_G0, 0x000004da },
453 { AUD_DEEMPH1_A0, 0x0000777a },
454 { AUD_DEEMPH1_B0, 0x00000000 },
455 { AUD_DEEMPH1_A1, 0x0003f062 },
456 { AUD_DEEMPH1_B1, 0x00000000 },
457 { AUD_PLL_EN, 0x00000000 },
458 { AUD_DMD_RA_DDS, 0x002a4efb },
459 { AUD_RATE_ADJ1, 0x00001000 },
460 { AUD_RATE_ADJ2, 0x00002000 },
461 { AUD_RATE_ADJ3, 0x00003000 },
462 { AUD_RATE_ADJ4, 0x00004000 },
463 { AUD_RATE_ADJ5, 0x00005000 },
464 { AUD_C2_UP_THR, 0x0000ffff },
465 { AUD_C2_LO_THR, 0x0000e800 },
466 { AUD_C1_UP_THR, 0x00008c00 },
467 { AUD_C1_LO_THR, 0x00006c00 },
469 // ; Completely ditch AFC feedback
470 { AUD_DCOC_0_SRC, 0x00000021 },
471 { AUD_DCOC_1_SRC, 0x0000001a },
472 { AUD_DCOC1_SHIFT, 0x00000000 },
473 { AUD_DCOC_1_SHIFT_IN0, 0x0000000a },
474 { AUD_DCOC_1_SHIFT_IN1, 0x00000008 },
475 { AUD_DCOC_PASS_IN, 0x00000000 },
476 { AUD_IIR4_0_SEL, 0x00000023 },
478 // ; Completely ditc FM-2 AFC feedback
479 { AUD_DN1_AFC, 0x00000000 },
480 { AUD_DCOC_2_SRC, 0x0000001b },
481 { AUD_IIR4_1_SEL, 0x00000025 },
483 // ; WARNING!!! THIS CHANGE WAS NOT EXPECTED!!!
484 // ; Swap I & Q inputs into second rotator
485 // ; to reverse frequency and therefor invert
486 // ; phase from the cordic FM demodulator
487 // ; (frequency rotation must also be reversed
488 { AUD_DN2_SRC_SEL, 0x00000001 },
489 { AUD_DN2_FREQ, 0x00003551 },
492 { AUD_PLL_PRESCALE, 0x00000002 },
493 { AUD_PLL_INT, 0x0000001f },
495 { /* end of list */ },
499 dprintk("%s (status: WorksForMe[tm])\n",__FUNCTION__);
503 set_audio_start(dev, 0x0004, EN_DMTRX_SUMR | EN_A2_AUTO_STEREO);
504 set_audio_registers(dev, a2_old);
505 set_audio_finish(dev);
508 set_audio_start(dev, 0x0004, EN_DMTRX_LR | EN_A2_AUTO_STEREO);
509 set_audio_registers(dev, a2);
510 set_audio_finish(dev);
514 static void set_audio_standard_EIAJ(struct cx8800_dev *dev)
516 static const struct rlist eiaj[] = {
517 /* TODO: eiaj register settings are not there yet ... */
519 { /* end of list */ },
521 dprintk("%s (status: unknown)\n",__FUNCTION__);
523 set_audio_start(dev, 0x0002, EN_EIAJ_AUTO_STEREO);
524 set_audio_registers(dev, eiaj);
525 set_audio_finish(dev);
528 static void set_audio_standard_FM(struct cx8800_dev *dev)
531 switch (dev->audio_properties.FM_deemphasis)
533 case WW_FM_DEEMPH_50:
534 //Set De-emphasis filter coefficients for 50 usec
535 cx_write(AUD_DEEMPH0_G0, 0x0C45);
536 cx_write(AUD_DEEMPH0_A0, 0x6262);
537 cx_write(AUD_DEEMPH0_B0, 0x1C29);
538 cx_write(AUD_DEEMPH0_A1, 0x3FC66);
539 cx_write(AUD_DEEMPH0_B1, 0x399A);
541 cx_write(AUD_DEEMPH1_G0, 0x0D80);
542 cx_write(AUD_DEEMPH1_A0, 0x6262);
543 cx_write(AUD_DEEMPH1_B0, 0x1C29);
544 cx_write(AUD_DEEMPH1_A1, 0x3FC66);
545 cx_write(AUD_DEEMPH1_B1, 0x399A);
549 case WW_FM_DEEMPH_75:
550 //Set De-emphasis filter coefficients for 75 usec
551 cx_write(AUD_DEEMPH0_G0, 0x91B );
552 cx_write(AUD_DEEMPH0_A0, 0x6B68);
553 cx_write(AUD_DEEMPH0_B0, 0x11EC);
554 cx_write(AUD_DEEMPH0_A1, 0x3FC66);
555 cx_write(AUD_DEEMPH0_B1, 0x399A);
557 cx_write(AUD_DEEMPH1_G0, 0xAA0 );
558 cx_write(AUD_DEEMPH1_A0, 0x6B68);
559 cx_write(AUD_DEEMPH1_B0, 0x11EC);
560 cx_write(AUD_DEEMPH1_A1, 0x3FC66);
561 cx_write(AUD_DEEMPH1_B1, 0x399A);
567 dprintk("%s (status: unknown)\n",__FUNCTION__);
568 set_audio_start(dev, 0x0020, EN_FMRADIO_AUTO_STEREO);
570 // AB: 10/2/01: this register is not being reset appropriately on occasion.
571 cx_write(AUD_POLYPH80SCALEFAC,3);
573 set_audio_finish(dev);
576 /* ----------------------------------------------------------- */
578 void cx88_set_tvaudio(struct cx8800_dev *dev)
580 switch (dev->tvaudio) {
582 set_audio_standard_BTSC(dev,0);
586 set_audio_standard_NICAM(dev);
591 set_audio_standard_A2(dev);
594 set_audio_standard_EIAJ(dev);
597 set_audio_standard_FM(dev);
600 set_audio_standard_NICAM_L(dev);
604 printk("%s: unknown tv audio mode [%d]\n",
605 dev->name, dev->tvaudio);
611 void cx88_get_stereo(struct cx8800_dev *dev, struct v4l2_tuner *t)
613 static char *m[] = {"stereo", "dual mono", "mono", "sap"};
614 static char *p[] = {"no pilot", "pilot c1", "pilot c2", "?"};
617 reg = cx_read(AUD_STATUS);
619 pilot = (reg >> 2) & 0x03;
620 dprintk("AUD_STATUS: %s / %s [status=0x%x,ctl=0x%x,vol=0x%x]\n",
621 m[mode], p[pilot], reg,
622 cx_read(AUD_CTL), cx_sread(SHADOW_AUD_VOL_CTL));
624 t->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_SAP |
625 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
626 t->rxsubchans = V4L2_TUNER_SUB_MONO;
627 t->audmode = V4L2_TUNER_MODE_MONO;
629 switch (dev->tvaudio) {
633 t->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
635 t->audmode = V4L2_TUNER_MODE_STEREO;
638 /* dual language -- FIXME */
639 t->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
640 t->audmode = V4L2_TUNER_MODE_LANG1;
645 t->audmode = V4L2_TUNER_MODE_STEREO;
648 t->rxsubchans = V4L2_TUNER_SUB_MONO;
649 t->audmode = V4L2_TUNER_MODE_MONO;
655 void cx88_set_stereo(struct cx8800_dev *dev, u32 mode)
660 switch (dev->tvaudio) {
663 case V4L2_TUNER_MODE_MONO:
664 case V4L2_TUNER_MODE_LANG1:
665 ctl = EN_A2_FORCE_MONO1;
668 case V4L2_TUNER_MODE_LANG2:
669 ctl = EN_A2_AUTO_MONO2;
672 case V4L2_TUNER_MODE_STEREO:
673 ctl = EN_A2_AUTO_STEREO | EN_DMTRX_SUMR;
680 case V4L2_TUNER_MODE_MONO:
681 ctl = EN_NICAM_FORCE_MONO1;
684 case V4L2_TUNER_MODE_LANG1:
685 ctl = EN_NICAM_AUTO_MONO2;
688 case V4L2_TUNER_MODE_STEREO:
689 ctl = EN_NICAM_FORCE_STEREO | EN_DMTRX_LR;
696 case V4L2_TUNER_MODE_MONO:
697 ctl = EN_FMRADIO_FORCE_MONO;
700 case V4L2_TUNER_MODE_STEREO:
701 ctl = EN_FMRADIO_AUTO_STEREO;
709 cx_write(AUD_SOFT_RESET, 0x0001);
710 cx_andor(AUD_CTL, mask, ctl);
711 cx_write(AUD_SOFT_RESET, 0x0000);
712 dprintk("cx88_set_stereo: mask 0x%x, ctl 0x%x "
713 "[status=0x%x,ctl=0x%x,vol=0x%x]\n",
714 mask, ctl, cx_read(AUD_STATUS),
715 cx_read(AUD_CTL), cx_sread(SHADOW_AUD_VOL_CTL));