xref: /netbsd-src/sys/dev/ic/ac97.c (revision fad4c9f71477ae11cea2ee75ec82151ac770a534)
1 /*      $NetBSD: ac97.c,v 1.81 2006/05/10 09:07:57 uebayasi Exp $ */
2 /*	$OpenBSD: ac97.c,v 1.8 2000/07/19 09:01:35 csapuntz Exp $	*/
3 
4 /*
5  * Copyright (c) 1999, 2000 Constantine Sapuntzakis
6  *
7  * Author:        Constantine Sapuntzakis <csapuntz@stanford.edu>
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. The name of the author may not be used to endorse or promote
18  *    products derived from this software without specific prior written
19  *    permission.
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
21  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
22  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE
24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
26  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
27  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
30  * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
31  * DAMAGE
32  */
33 
34 /* Partially inspired by FreeBSD's sys/dev/pcm/ac97.c. It came with
35    the following copyright */
36 
37 /*
38  * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
39  * All rights reserved.
40  *
41  * Redistribution and use in source and binary forms, with or without
42  * modification, are permitted provided that the following conditions
43  * are met:
44  * 1. Redistributions of source code must retain the above copyright
45  *    notice, this list of conditions and the following disclaimer.
46  * 2. Redistributions in binary form must reproduce the above copyright
47  *    notice, this list of conditions and the following disclaimer in the
48  *    documentation and/or other materials provided with the distribution.
49  *
50  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
51  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
53  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
54  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
55  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
56  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
57  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
58  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
59  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
60  * SUCH DAMAGE.
61  *
62  * $FreeBSD$
63  */
64 
65 #include <sys/cdefs.h>
66 __KERNEL_RCSID(0, "$NetBSD: ac97.c,v 1.81 2006/05/10 09:07:57 uebayasi Exp $");
67 
68 #include <sys/param.h>
69 #include <sys/systm.h>
70 #include <sys/kernel.h>
71 #include <sys/malloc.h>
72 #include <sys/device.h>
73 #include <sys/sysctl.h>
74 
75 #include <sys/audioio.h>
76 #include <dev/audio_if.h>
77 
78 #include <dev/ic/ac97reg.h>
79 #include <dev/ic/ac97var.h>
80 
81 struct ac97_softc;
82 struct ac97_source_info;
83 static int	ac97_mixer_get_port(struct ac97_codec_if *, mixer_ctrl_t *);
84 static int	ac97_mixer_set_port(struct ac97_codec_if *, mixer_ctrl_t *);
85 static void	ac97_detach(struct ac97_codec_if *);
86 static int	ac97_query_devinfo(struct ac97_codec_if *, mixer_devinfo_t *);
87 static int	ac97_get_portnum_by_name(struct ac97_codec_if *, const char *,
88 					 const char *, const char *);
89 static void	ac97_restore_shadow(struct ac97_codec_if *);
90 static int	ac97_set_rate(struct ac97_codec_if *, int, u_int *);
91 static void	ac97_set_clock(struct ac97_codec_if *, unsigned int);
92 static uint16_t ac97_get_extcaps(struct ac97_codec_if *);
93 static int	ac97_add_port(struct ac97_softc *,
94 			      const struct ac97_source_info *);
95 static int	ac97_str_equal(const char *, const char *);
96 static int	ac97_check_capability(struct ac97_softc *, int);
97 static void	ac97_setup_source_info(struct ac97_softc *);
98 static void	ac97_read(struct ac97_softc *, uint8_t, uint16_t *);
99 static void	ac97_setup_defaults(struct ac97_softc *);
100 static int	ac97_write(struct ac97_softc *, uint8_t, uint16_t);
101 
102 static void	ac97_ad198x_init(struct ac97_softc *);
103 static void	ac97_alc650_init(struct ac97_softc *);
104 static void	ac97_vt1616_init(struct ac97_softc *);
105 
106 static int	ac97_modem_offhook_set(struct ac97_softc *, int, int);
107 static int	ac97_sysctl_verify(SYSCTLFN_ARGS);
108 
109 #define Ac97Nphone	"phone"
110 #define Ac97Nline1	"line1"
111 #define Ac97Nline2	"line2"
112 #define Ac97Nhandset	"handset"
113 
114 static const struct audio_mixer_enum
115 ac97_on_off = { 2, { { { AudioNoff } , 0 },
116 		     { { AudioNon }  , 1 } } };
117 
118 static const struct audio_mixer_enum
119 ac97_mic_select = { 2, { { { AudioNmicrophone "0" }, 0 },
120 			 { { AudioNmicrophone "1" }, 1 } } };
121 
122 static const struct audio_mixer_enum
123 ac97_mono_select = { 2, { { { AudioNmixerout }, 0 },
124 			  { { AudioNmicrophone }, 1 } } };
125 
126 static const struct audio_mixer_enum
127 ac97_source = { 8, { { { AudioNmicrophone } , 0 },
128 		     { { AudioNcd }, 1 },
129 		     { { AudioNvideo }, 2 },
130 		     { { AudioNaux }, 3 },
131 		     { { AudioNline }, 4 },
132 		     { { AudioNmixerout }, 5 },
133 		     { { AudioNmixerout AudioNmono }, 6 },
134 		     { { Ac97Nphone }, 7 } } };
135 
136 /*
137  * Due to different values for each source that uses these structures,
138  * the ac97_query_devinfo function sets delta in mixer_devinfo_t using
139  * ac97_source_info.bits.
140  */
141 static const struct audio_mixer_value
142 ac97_volume_stereo = { { AudioNvolume }, 2 };
143 
144 static const struct audio_mixer_value
145 ac97_volume_mono = { { AudioNvolume }, 1 };
146 
147 #define WRAP(a)  &a, sizeof(a)
148 
149 struct ac97_source_info {
150 	const char *class;
151 	const char *device;
152 	const char *qualifier;
153 
154 	int  type;
155 	const void *info;
156 	int  info_size;
157 
158 	uint8_t  reg;
159 	uint16_t default_value;
160 	uint8_t  bits:3;
161 	uint8_t  ofs:4;
162 	uint8_t  mute:1;
163 	uint8_t  polarity:1;   /* Does 0 == MAX or MIN */
164 	enum {
165 		CHECK_NONE = 0,
166 		CHECK_SURROUND,
167 		CHECK_CENTER,
168 		CHECK_LFE,
169 		CHECK_HEADPHONES,
170 		CHECK_TONE,
171 		CHECK_MIC,
172 		CHECK_LOUDNESS,
173 		CHECK_3D,
174 		CHECK_LINE1,
175 		CHECK_LINE2,
176 		CHECK_HANDSET
177 	} req_feature;
178 
179 	int  prev;
180 	int  next;
181 	int  mixer_class;
182 };
183 
184 static const struct ac97_source_info audio_source_info[] = {
185 	{ AudioCinputs,		NULL,		NULL,
186 	  AUDIO_MIXER_CLASS, },
187 	{ AudioCoutputs,	NULL,		NULL,
188 	  AUDIO_MIXER_CLASS, },
189 	{ AudioCrecord,		NULL,		NULL,
190 	  AUDIO_MIXER_CLASS, },
191 	/* Stereo master volume*/
192 	{ AudioCoutputs,	AudioNmaster,	NULL,
193 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_stereo),
194 	  AC97_REG_MASTER_VOLUME, 0x8000, 5, 0, 1,
195 	},
196 	/* Mono volume */
197 	{ AudioCoutputs,	AudioNmono,	NULL,
198 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_mono),
199 	  AC97_REG_MASTER_VOLUME_MONO, 0x8000, 6, 0, 1,
200 	},
201 	{ AudioCoutputs,	AudioNmono,	AudioNsource,
202 	  AUDIO_MIXER_ENUM, WRAP(ac97_mono_select),
203 	  AC97_REG_GP, 0x0000, 1, 9, 0,
204 	},
205 	/* Headphone volume */
206 	{ AudioCoutputs,	AudioNheadphone, NULL,
207 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_stereo),
208 	  AC97_REG_HEADPHONE_VOLUME, 0x8000, 6, 0, 1, 0, CHECK_HEADPHONES
209 	},
210 	/* Surround volume - logic hard coded for mute */
211 	{ AudioCoutputs,	AudioNsurround,	NULL,
212 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_stereo),
213 	  AC97_REG_SURR_MASTER, 0x8080, 5, 0, 1, 0, CHECK_SURROUND
214 	},
215 	/* Center volume*/
216 	{ AudioCoutputs,	AudioNcenter,	NULL,
217 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_mono),
218 	  AC97_REG_CENTER_LFE_MASTER, 0x8080, 5, 0, 0, 0, CHECK_CENTER
219 	},
220 	{ AudioCoutputs,	AudioNcenter,	AudioNmute,
221 	  AUDIO_MIXER_ENUM, WRAP(ac97_on_off),
222 	  AC97_REG_CENTER_LFE_MASTER, 0x8080, 1, 7, 0, 0, CHECK_CENTER
223 	},
224 	/* LFE volume*/
225 	{ AudioCoutputs,	AudioNlfe,	NULL,
226 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_mono),
227 	  AC97_REG_CENTER_LFE_MASTER, 0x8080, 5, 8, 0, 0, CHECK_LFE
228 	},
229 	{ AudioCoutputs,	AudioNlfe,	AudioNmute,
230 	  AUDIO_MIXER_ENUM, WRAP(ac97_on_off),
231 	  AC97_REG_CENTER_LFE_MASTER, 0x8080, 1, 15, 0, 0, CHECK_LFE
232 	},
233 	/* Tone - bass */
234 	{ AudioCoutputs,	AudioNbass,	NULL,
235 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_mono),
236 	  AC97_REG_MASTER_TONE, 0x0f0f, 4, 8, 0, 0, CHECK_TONE
237 	},
238 	/* Tone - treble */
239 	{ AudioCoutputs,	AudioNtreble,	NULL,
240 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_mono),
241 	  AC97_REG_MASTER_TONE, 0x0f0f, 4, 0, 0, 0, CHECK_TONE
242 	},
243 	/* PC Beep Volume */
244 	{ AudioCinputs,		AudioNspeaker,	NULL,
245 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_mono),
246 	  AC97_REG_PCBEEP_VOLUME, 0x0000, 4, 1, 1,
247 	},
248 
249 	/* Phone */
250 	{ AudioCinputs,		Ac97Nphone,	NULL,
251 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_mono),
252 	  AC97_REG_PHONE_VOLUME, 0x8008, 5, 0, 1,
253 	},
254 	/* Mic Volume */
255 	{ AudioCinputs,		AudioNmicrophone, NULL,
256 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_mono),
257 	  AC97_REG_MIC_VOLUME, 0x8008, 5, 0, 1,
258 	},
259 	{ AudioCinputs,		AudioNmicrophone, AudioNpreamp,
260 	  AUDIO_MIXER_ENUM, WRAP(ac97_on_off),
261 	  AC97_REG_MIC_VOLUME, 0x8008, 1, 6, 0,
262 	},
263 	{ AudioCinputs,		AudioNmicrophone, AudioNsource,
264 	  AUDIO_MIXER_ENUM, WRAP(ac97_mic_select),
265 	  AC97_REG_GP, 0x0000, 1, 8, 0,
266 	},
267 	/* Line in Volume */
268 	{ AudioCinputs,		AudioNline,	NULL,
269 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_stereo),
270 	  AC97_REG_LINEIN_VOLUME, 0x8808, 5, 0, 1,
271 	},
272 	/* CD Volume */
273 	{ AudioCinputs,		AudioNcd,	NULL,
274 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_stereo),
275 	  AC97_REG_CD_VOLUME, 0x8808, 5, 0, 1,
276 	},
277 	/* Video Volume */
278 	{ AudioCinputs,		AudioNvideo,	NULL,
279 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_stereo),
280 	  AC97_REG_VIDEO_VOLUME, 0x8808, 5, 0, 1,
281 	},
282 	/* AUX volume */
283 	{ AudioCinputs,		AudioNaux,	NULL,
284 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_stereo),
285 	  AC97_REG_AUX_VOLUME, 0x8808, 5, 0, 1,
286 	},
287 	/* PCM out volume */
288 	{ AudioCinputs,		AudioNdac,	NULL,
289 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_stereo),
290 	  AC97_REG_PCMOUT_VOLUME, 0x8808, 5, 0, 1,
291 	},
292 	/* Record Source - some logic for this is hard coded - see below */
293 	{ AudioCrecord,		AudioNsource,	NULL,
294 	  AUDIO_MIXER_ENUM, WRAP(ac97_source),
295 	  AC97_REG_RECORD_SELECT, 0x0000, 3, 0, 0,
296 	},
297 	/* Record Gain */
298 	{ AudioCrecord,		AudioNvolume,	NULL,
299 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_stereo),
300 	  AC97_REG_RECORD_GAIN, 0x8000, 4, 0, 1, 1,
301 	},
302 	/* Record Gain mic */
303 	{ AudioCrecord,		AudioNmicrophone, NULL,
304 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_mono),
305 	  AC97_REG_RECORD_GAIN_MIC, 0x8000, 4, 0, 1, 1, CHECK_MIC
306 	},
307 	/* */
308 	{ AudioCoutputs,	AudioNloudness,	NULL,
309 	  AUDIO_MIXER_ENUM, WRAP(ac97_on_off),
310 	  AC97_REG_GP, 0x0000, 1, 12, 0, 0, CHECK_LOUDNESS
311 	},
312 	{ AudioCoutputs,	AudioNspatial,	NULL,
313 	  AUDIO_MIXER_ENUM, WRAP(ac97_on_off),
314 	  AC97_REG_GP, 0x0000, 1, 13, 0, 1, CHECK_3D
315 	},
316 	{ AudioCoutputs,	AudioNspatial,	"center",
317 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_mono),
318 	  AC97_REG_3D_CONTROL, 0x0000, 4, 8, 0, 1, CHECK_3D
319 	},
320 	{ AudioCoutputs,	AudioNspatial,	"depth",
321 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_mono),
322 	  AC97_REG_3D_CONTROL, 0x0000, 4, 0, 0, 1, CHECK_3D
323 	},
324 
325 	/* Missing features: Simulated Stereo, POP, Loopback mode */
326 };
327 
328 static const struct ac97_source_info modem_source_info[] = {
329 	/* Classes */
330 	{ AudioCinputs,		NULL,		NULL,
331 	  AUDIO_MIXER_CLASS, },
332 	{ AudioCoutputs,	NULL,		NULL,
333 	  AUDIO_MIXER_CLASS, },
334 	{ AudioCinputs, 	Ac97Nline1,	NULL,
335 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_mono),
336 	  AC97_REG_LINE1_LEVEL, 0x8080, 4, 0, 0, 1, CHECK_LINE1
337 	},
338 	{ AudioCoutputs,	Ac97Nline1,	NULL,
339 	  AUDIO_MIXER_VALUE, WRAP(ac97_volume_mono),
340 	  AC97_REG_LINE1_LEVEL, 0x8080, 4, 8, 0, 1, CHECK_LINE1
341 	},
342 	{ AudioCinputs,		Ac97Nline1,	AudioNmute,
343 	  AUDIO_MIXER_ENUM, WRAP(ac97_on_off),
344 	  AC97_REG_LINE1_LEVEL, 0x8080, 1, 7, 0, 0, CHECK_LINE1
345 	},
346 	{ AudioCoutputs,	Ac97Nline1,	AudioNmute,
347 	  AUDIO_MIXER_ENUM, WRAP(ac97_on_off),
348 	  AC97_REG_LINE1_LEVEL, 0x8080, 1, 15, 0, 0, CHECK_LINE1
349 	},
350 };
351 
352 #define AUDIO_SOURCE_INFO_SIZE \
353 		(sizeof(audio_source_info)/sizeof(audio_source_info[0]))
354 #define MODEM_SOURCE_INFO_SIZE \
355 		(sizeof(modem_source_info)/sizeof(modem_source_info[0]))
356 #define SOURCE_INFO_SIZE(as) ((as)->type == AC97_CODEC_TYPE_MODEM ? \
357 	        MODEM_SOURCE_INFO_SIZE : AUDIO_SOURCE_INFO_SIZE)
358 
359 /*
360  * Check out http://developer.intel.com/pc-supp/platform/ac97/ for
361  * information on AC-97
362  */
363 
364 struct ac97_softc {
365 	/* ac97_codec_if must be at the first of ac97_softc. */
366 	struct ac97_codec_if codec_if;
367 
368 	struct ac97_host_if *host_if;
369 
370 #define AUDIO_MAX_SOURCES	(2 * AUDIO_SOURCE_INFO_SIZE)
371 #define MODEM_MAX_SOURCES	(2 * MODEM_SOURCE_INFO_SIZE)
372 	struct ac97_source_info audio_source_info[AUDIO_MAX_SOURCES];
373 	struct ac97_source_info modem_source_info[MODEM_MAX_SOURCES];
374 	struct ac97_source_info *source_info;
375 	int num_source_info;
376 
377 	enum ac97_host_flags host_flags;
378 	unsigned int ac97_clock; /* usually 48000 */
379 #define AC97_STANDARD_CLOCK	48000U
380 	uint16_t power_all;
381 	uint16_t power_reg;	/* -> AC97_REG_POWER */
382 	uint16_t caps;		/* -> AC97_REG_RESET */
383 	uint16_t ext_id;	/* -> AC97_REG_EXT_AUDIO_ID */
384 	uint16_t ext_mid;	/* -> AC97_REG_EXT_MODEM_ID */
385 	uint16_t shadow_reg[128];
386 
387 	int type;
388 
389 	/* sysctl */
390 	struct sysctllog *log;
391 	int offhook_line1_mib;
392 	int offhook_line2_mib;
393 	int offhook_line1;
394 	int offhook_line2;
395 };
396 
397 static struct ac97_codec_if_vtbl ac97civ = {
398 	ac97_mixer_get_port,
399 	ac97_mixer_set_port,
400 	ac97_query_devinfo,
401 	ac97_get_portnum_by_name,
402 	ac97_restore_shadow,
403 	ac97_get_extcaps,
404 	ac97_set_rate,
405 	ac97_set_clock,
406 	ac97_detach,
407 };
408 
409 static const struct ac97_codecid {
410 	uint32_t id;
411 	uint32_t mask;
412 	const char *name;
413 	void (*init)(struct ac97_softc *);
414 } ac97codecid[] = {
415 	/*
416 	 * Analog Devices SoundMAX
417 	 * http://www.soundmax.com/products/information/codecs.html
418 	 * http://www.analog.com/productSelection/pdf/AD1881A_0.pdf
419 	 * http://www.analog.com/productSelection/pdf/AD1885_0.pdf
420 	 * http://www.analog.com/UploadedFiles/Data_Sheets/206585810AD1980_0.pdf
421 	 * http://www.analog.com/productSelection/pdf/AD1981A_0.pdf
422 	 * http://www.analog.com/productSelection/pdf/AD1981B_0.pdf
423 	 * http://www.analog.com/UploadedFiles/Data_Sheets/180644528AD1985_0.pdf
424 	 */
425 	{ AC97_CODEC_ID('A', 'D', 'S', 3),
426 	  0xffffffff,			"Analog Devices AD1819B" },
427 	{ AC97_CODEC_ID('A', 'D', 'S', 0x40),
428 	  0xffffffff,			"Analog Devices AD1881" },
429 	{ AC97_CODEC_ID('A', 'D', 'S', 0x48),
430 	  0xffffffff,			"Analog Devices AD1881A" },
431 	{ AC97_CODEC_ID('A', 'D', 'S', 0x60),
432 	  0xffffffff,			"Analog Devices AD1885" },
433 	{ AC97_CODEC_ID('A', 'D', 'S', 0x61),
434 	  0xffffffff,			"Analog Devices AD1886" },
435 	{ AC97_CODEC_ID('A', 'D', 'S', 0x63),
436 	  0xffffffff,			"Analog Devices AD1886A" },
437 	{ AC97_CODEC_ID('A', 'D', 'S', 0x68),
438 	  0xffffffff,			"Analog Devices AD1888", ac97_ad198x_init },
439 	{ AC97_CODEC_ID('A', 'D', 'S', 0x70),
440 	  0xffffffff,			"Analog Devices AD1980", ac97_ad198x_init },
441 	{ AC97_CODEC_ID('A', 'D', 'S', 0x72),
442 	  0xffffffff,			"Analog Devices AD1981A" },
443 	{ AC97_CODEC_ID('A', 'D', 'S', 0x74),
444 	  0xffffffff,			"Analog Devices AD1981B" },
445 	{ AC97_CODEC_ID('A', 'D', 'S', 0x75),
446 	  0xffffffff,			"Analog Devices AD1985", ac97_ad198x_init },
447 	{ AC97_CODEC_ID('A', 'D', 'S', 0),
448 	  AC97_VENDOR_ID_MASK,		"Analog Devices unknown" },
449 
450 	/*
451 	 * Datasheets:
452 	 *	http://www.asahi-kasei.co.jp/akm/japanese/product/ak4543/ek4543.pdf
453 	 *	http://www.asahi-kasei.co.jp/akm/japanese/product/ak4544a/ek4544a.pdf
454 	 *	http://www.asahi-kasei.co.jp/akm/japanese/product/ak4545/ak4545_f00e.pdf
455 	 */
456 	{ AC97_CODEC_ID('A', 'K', 'M', 0),
457 	  0xffffffff,			"Asahi Kasei AK4540"	},
458 	{ AC97_CODEC_ID('A', 'K', 'M', 1),
459 	  0xffffffff,			"Asahi Kasei AK4542"	},
460 	{ AC97_CODEC_ID('A', 'K', 'M', 2),
461 	  0xffffffff,			"Asahi Kasei AK4541/AK4543" },
462 	{ AC97_CODEC_ID('A', 'K', 'M', 5),
463 	  0xffffffff,			"Asahi Kasei AK4544" },
464 	{ AC97_CODEC_ID('A', 'K', 'M', 6),
465 	  0xffffffff,			"Asahi Kasei AK4544A" },
466 	{ AC97_CODEC_ID('A', 'K', 'M', 7),
467 	  0xffffffff,			"Asahi Kasei AK4545" },
468 	{ AC97_CODEC_ID('A', 'K', 'M', 0),
469 	  AC97_VENDOR_ID_MASK,		"Asahi Kasei unknown" },
470 
471 	/*
472 	 * Realtek & Avance Logic
473 	 *	http://www.realtek.com.tw/downloads/downloads1-3.aspx?lineid=5&famid=All&series=All&Spec=True
474 	 *
475 	 * ALC650 and ALC658 support VRA, but it supports only 8000, 11025,
476 	 * 12000, 16000, 22050, 24000, 32000, 44100, and 48000 Hz.
477 	 */
478 	{ AC97_CODEC_ID('A', 'L', 'C', 0x00),
479 	  0xfffffff0,			"Realtek RL5306"	},
480 	{ AC97_CODEC_ID('A', 'L', 'C', 0x10),
481 	  0xfffffff0,			"Realtek RL5382"	},
482 	{ AC97_CODEC_ID('A', 'L', 'C', 0x20),
483 	  0xfffffff0,			"Realtek RL5383/RL5522/ALC100"	},
484 	{ AC97_CODEC_ID('A', 'L', 'G', 0x10),
485 	  0xffffffff,			"Avance Logic ALC200/ALC201"	},
486 	{ AC97_CODEC_ID('A', 'L', 'G', 0x20),
487 	  0xfffffff0,			"Avance Logic ALC650", ac97_alc650_init },
488 	{ AC97_CODEC_ID('A', 'L', 'G', 0x30),
489 	  0xffffffff,			"Avance Logic ALC101"	},
490 	{ AC97_CODEC_ID('A', 'L', 'G', 0x40),
491 	  0xffffffff,			"Avance Logic ALC202"	},
492 	{ AC97_CODEC_ID('A', 'L', 'G', 0x50),
493 	  0xffffffff,			"Avance Logic ALC250"	},
494 	{ AC97_CODEC_ID('A', 'L', 'G', 0x60),
495 	  0xfffffff0,			"Avance Logic ALC655"	},
496 	{ AC97_CODEC_ID('A', 'L', 'G', 0x80),
497 	  0xfffffff0,			"Avance Logic ALC658"	},
498 	{ AC97_CODEC_ID('A', 'L', 'G', 0x90),
499 	  0xfffffff0,			"Avance Logic ALC850"	},
500 	{ AC97_CODEC_ID('A', 'L', 'C', 0),
501 	  AC97_VENDOR_ID_MASK,		"Realtek unknown"	},
502 	{ AC97_CODEC_ID('A', 'L', 'G', 0),
503 	  AC97_VENDOR_ID_MASK,		"Avance Logic unknown"	},
504 
505 	/**
506 	 * C-Media Electronics Inc.
507 	 * http://www.cmedia.com.tw/doc/CMI9739%206CH%20Audio%20Codec%20SPEC_Ver12.pdf
508 	 */
509 	{ AC97_CODEC_ID('C', 'M', 'I', 0x61),
510 	  0xffffffff,			"C-Media CMI9739"	},
511 	{ AC97_CODEC_ID('C', 'M', 'I', 0),
512 	  AC97_VENDOR_ID_MASK,		"C-Media unknown"	},
513 
514 	/* Cirrus Logic, Crystal series:
515 	 *  'C' 'R' 'Y' 0x0[0-7]  - CS4297
516 	 *              0x1[0-7]  - CS4297A
517 	 *              0x2[0-7]  - CS4298
518 	 *              0x2[8-f]  - CS4294
519 	 *              0x3[0-7]  - CS4299
520 	 *              0x4[8-f]  - CS4201
521 	 *              0x5[8-f]  - CS4205
522 	 *              0x6[0-7]  - CS4291
523 	 *              0x7[0-7]  - CS4202
524 	 * Datasheets:
525 	 *	http://www.cirrus.com/pubs/cs4297A-5.pdf?DocumentID=593
526 	 *	http://www.cirrus.com/pubs/cs4294.pdf?DocumentID=32
527 	 *	http://www.cirrus.com/pubs/cs4299-5.pdf?DocumentID=594
528 	 *	http://www.cirrus.com/pubs/cs4201-2.pdf?DocumentID=492
529 	 *	http://www.cirrus.com/pubs/cs4205-2.pdf?DocumentID=492
530 	 *	http://www.cirrus.com/pubs/cs4202-1.pdf?DocumentID=852
531 	 */
532 	{ AC97_CODEC_ID('C', 'R', 'Y', 0x00),
533 	  0xfffffff8,			"Crystal CS4297",	},
534 	{ AC97_CODEC_ID('C', 'R', 'Y', 0x10),
535 	  0xfffffff8,			"Crystal CS4297A",	},
536 	{ AC97_CODEC_ID('C', 'R', 'Y', 0x20),
537 	  0xfffffff8,			"Crystal CS4298",	},
538 	{ AC97_CODEC_ID('C', 'R', 'Y', 0x28),
539 	  0xfffffff8,			"Crystal CS4294",	},
540 	{ AC97_CODEC_ID('C', 'R', 'Y', 0x30),
541 	  0xfffffff8,			"Crystal CS4299",	},
542 	{ AC97_CODEC_ID('C', 'R', 'Y', 0x48),
543 	  0xfffffff8,			"Crystal CS4201",	},
544 	{ AC97_CODEC_ID('C', 'R', 'Y', 0x58),
545 	  0xfffffff8,			"Crystal CS4205",	},
546 	{ AC97_CODEC_ID('C', 'R', 'Y', 0x60),
547 	  0xfffffff8,			"Crystal CS4291",	},
548 	{ AC97_CODEC_ID('C', 'R', 'Y', 0x70),
549 	  0xfffffff8,			"Crystal CS4202",	},
550 	{ AC97_CODEC_ID('C', 'R', 'Y', 0),
551 	  AC97_VENDOR_ID_MASK,		"Cirrus Logic unknown",	},
552 
553 	{ 0x45838308, 0xffffffff,	"ESS Technology ES1921", },
554 	{ 0x45838300, AC97_VENDOR_ID_MASK, "ESS Technology unknown", },
555 
556 	{ AC97_CODEC_ID('H', 'R', 'S', 0),
557 	  0xffffffff,			"Intersil HMP9701",	},
558 	{ AC97_CODEC_ID('H', 'R', 'S', 0),
559 	  AC97_VENDOR_ID_MASK,		"Intersil unknown",	},
560 
561 	/*
562 	 * IC Ensemble (VIA)
563 	 *	http://www.viatech.com/en/datasheet/DS1616.pdf
564 	 */
565 	{ AC97_CODEC_ID('I', 'C', 'E', 0x01),
566 	  0xffffffff,			"ICEnsemble ICE1230/VT1611",	},
567 	{ AC97_CODEC_ID('I', 'C', 'E', 0x11),
568 	  0xffffffff,			"ICEnsemble ICE1232/VT1611A",	},
569 	{ AC97_CODEC_ID('I', 'C', 'E', 0x14),
570 	  0xffffffff,			"ICEnsemble ICE1232A",	},
571 	{ AC97_CODEC_ID('I', 'C', 'E', 0x51),
572 	  0xffffffff,			"VIA Technologies VT1616", ac97_vt1616_init },
573 	{ AC97_CODEC_ID('I', 'C', 'E', 0x52),
574 	  0xffffffff,			"VIA Technologies VT1616i", ac97_vt1616_init },
575 	{ AC97_CODEC_ID('I', 'C', 'E', 0),
576 	  AC97_VENDOR_ID_MASK,		"ICEnsemble/VIA unknown",	},
577 
578 	{ AC97_CODEC_ID('N', 'S', 'C', 0),
579 	  0xffffffff,			"National Semiconductor LM454[03568]", },
580 	{ AC97_CODEC_ID('N', 'S', 'C', 49),
581 	  0xffffffff,			"National Semiconductor LM4549", },
582 	{ AC97_CODEC_ID('N', 'S', 'C', 0),
583 	  AC97_VENDOR_ID_MASK,		"National Semiconductor unknown", },
584 
585 	{ AC97_CODEC_ID('P', 'S', 'C', 4),
586 	  0xffffffff,			"Philips Semiconductor UCB1400", },
587 	{ AC97_CODEC_ID('P', 'S', 'C', 0),
588 	  AC97_VENDOR_ID_MASK,		"Philips Semiconductor unknown", },
589 
590 	{ AC97_CODEC_ID('S', 'I', 'L', 34),
591 	  0xffffffff,			"Silicon Laboratory Si3036", },
592 	{ AC97_CODEC_ID('S', 'I', 'L', 35),
593 	  0xffffffff,			"Silicon Laboratory Si3038", },
594 	{ AC97_CODEC_ID('S', 'I', 'L', 0),
595 	  AC97_VENDOR_ID_MASK,		"Silicon Laboratory unknown", },
596 
597 	{ AC97_CODEC_ID('T', 'R', 'A', 2),
598 	  0xffffffff,			"TriTech TR28022",	},
599 	{ AC97_CODEC_ID('T', 'R', 'A', 3),
600 	  0xffffffff,			"TriTech TR28023",	},
601 	{ AC97_CODEC_ID('T', 'R', 'A', 6),
602 	  0xffffffff,			"TriTech TR28026",	},
603 	{ AC97_CODEC_ID('T', 'R', 'A', 8),
604 	  0xffffffff,			"TriTech TR28028",	},
605 	{ AC97_CODEC_ID('T', 'R', 'A', 35),
606 	  0xffffffff,			"TriTech TR28602",	},
607 	{ AC97_CODEC_ID('T', 'R', 'A', 0),
608 	  AC97_VENDOR_ID_MASK,		"TriTech unknown",	},
609 
610 	{ AC97_CODEC_ID('T', 'X', 'N', 0x20),
611 	  0xffffffff,			"Texas Instruments TLC320AD9xC", },
612 	{ AC97_CODEC_ID('T', 'X', 'N', 0),
613 	  AC97_VENDOR_ID_MASK,		"Texas Instruments unknown", },
614 
615 	/*
616 	 * VIA
617 	 * http://www.viatech.com/en/multimedia/audio.jsp
618 	 */
619 	{ AC97_CODEC_ID('V', 'I', 'A', 0x61),
620 	  0xffffffff,			"VIA Technologies VT1612A", },
621 	{ AC97_CODEC_ID('V', 'I', 'A', 0),
622 	  AC97_VENDOR_ID_MASK,		"VIA Technologies unknown", },
623 
624 	{ AC97_CODEC_ID('W', 'E', 'C', 1),
625 	  0xffffffff,			"Winbond W83971D",	},
626 	{ AC97_CODEC_ID('W', 'E', 'C', 0),
627 	  AC97_VENDOR_ID_MASK,		"Winbond unknown",	},
628 
629 	/*
630 	 * http://www.wolfsonmicro.com/product_list.asp?cid=64
631 	 *	http://www.wolfsonmicro.com/download.asp/did.56/WM9701A.pdf - 00
632 	 *	http://www.wolfsonmicro.com/download.asp/did.57/WM9703.pdf  - 03
633 	 *	http://www.wolfsonmicro.com/download.asp/did.58/WM9704M.pdf - 04
634 	 *	http://www.wolfsonmicro.com/download.asp/did.59/WM9704Q.pdf - 04
635 	 *	http://www.wolfsonmicro.com/download.asp/did.184/WM9705_Rev34.pdf - 05
636 	 *	http://www.wolfsonmicro.com/download.asp/did.60/WM9707.pdf  - 03
637 	 *	http://www.wolfsonmicro.com/download.asp/did.136/WM9708.pdf - 03
638 	 *	http://www.wolfsonmicro.com/download.asp/did.243/WM9710.pdf - 05
639 	 */
640 	{ AC97_CODEC_ID('W', 'M', 'L', 0),
641 	  0xffffffff,			"Wolfson WM9701A",	},
642 	{ AC97_CODEC_ID('W', 'M', 'L', 3),
643 	  0xffffffff,			"Wolfson WM9703/WM9707/WM9708",	},
644 	{ AC97_CODEC_ID('W', 'M', 'L', 4),
645 	  0xffffffff,			"Wolfson WM9704",	},
646 	{ AC97_CODEC_ID('W', 'M', 'L', 5),
647 	  0xffffffff,			"Wolfson WM9705/WM9710", },
648 	{ AC97_CODEC_ID('W', 'M', 'L', 0),
649 	  AC97_VENDOR_ID_MASK,		"Wolfson unknown",	},
650 
651 	/*
652 	 * http://www.yamaha.co.jp/english/product/lsi/us/products/pcaudio.html
653 	 * Datasheets:
654 	 *	http://www.yamaha.co.jp/english/product/lsi/us/products/pdf/4MF743A20.pdf
655 	 *	http://www.yamaha.co.jp/english/product/lsi/us/products/pdf/4MF753A20.pdf
656 	 */
657 	{ AC97_CODEC_ID('Y', 'M', 'H', 0),
658 	  0xffffffff,			"Yamaha YMF743-S",	},
659 	{ AC97_CODEC_ID('Y', 'M', 'H', 3),
660 	  0xffffffff,			"Yamaha YMF753-S",	},
661 	{ AC97_CODEC_ID('Y', 'M', 'H', 0),
662 	  AC97_VENDOR_ID_MASK,		"Yamaha unknown",	},
663 
664 	/*
665 	 * http://www.sigmatel.com/products/technical_docs.htm
666 	 * and
667 	 * http://www.sigmatel.com/documents/c-major-brochure-9-0.pdf
668 	 */
669 	{ 0x83847600, 0xffffffff,	"SigmaTel STAC9700",	},
670 	{ 0x83847604, 0xffffffff,	"SigmaTel STAC9701/3/4/5", },
671 	{ 0x83847605, 0xffffffff,	"SigmaTel STAC9704",	},
672 	{ 0x83847608, 0xffffffff,	"SigmaTel STAC9708",	},
673 	{ 0x83847609, 0xffffffff,	"SigmaTel STAC9721/23",	},
674 	{ 0x83847644, 0xffffffff,	"SigmaTel STAC9744/45",	},
675 	{ 0x83847650, 0xffffffff,	"SigmaTel STAC9750/51",	},
676 	{ 0x83847652, 0xffffffff,	"SigmaTel STAC9752/53",	},
677 	{ 0x83847656, 0xffffffff,	"SigmaTel STAC9756/57",	},
678 	{ 0x83847658, 0xffffffff,	"SigmaTel STAC9758/59",	},
679 	{ 0x83847666, 0xffffffff,	"SigmaTel STAC9766/67",	},
680 	{ 0x83847684, 0xffffffff,	"SigmaTel STAC9783/84",	},
681 	{ 0x83847600, AC97_VENDOR_ID_MASK, "SigmaTel unknown",	},
682 
683 	/* Conexant AC'97 modems -- good luck finding datasheets! */
684 	{ AC97_CODEC_ID('C', 'X', 'T', 33),
685 	  0xffffffff,			"Conexant HSD11246", },
686 	{ AC97_CODEC_ID('C', 'X', 'T', 34),
687 	  0xffffffff,			"Conexant D480 MDC V.92 Modem", },
688 	{ AC97_CODEC_ID('C', 'X', 'T', 48),
689 	  0xffffffff,			"Conexant CXT48", },
690 	{ AC97_CODEC_ID('C', 'X', 'T', 0),
691 	  AC97_VENDOR_ID_MASK,		"Conexant unknown", },
692 
693 	{ 0,
694 	  0,			NULL,			}
695 };
696 
697 static const char * const ac97enhancement[] = {
698 	"no 3D stereo",
699 	"Analog Devices Phat Stereo",
700 	"Creative",
701 	"National Semi 3D",
702 	"Yamaha Ymersion",
703 	"BBE 3D",
704 	"Crystal Semi 3D",
705 	"Qsound QXpander",
706 	"Spatializer 3D",
707 	"SRS 3D",
708 	"Platform Tech 3D",
709 	"AKM 3D",
710 	"Aureal",
711 	"AZTECH 3D",
712 	"Binaura 3D",
713 	"ESS Technology",
714 	"Harman International VMAx",
715 	"Nvidea 3D",
716 	"Philips Incredible Sound",
717 	"Texas Instruments' 3D",
718 	"VLSI Technology 3D",
719 	"TriTech 3D",
720 	"Realtek 3D",
721 	"Samsung 3D",
722 	"Wolfson Microelectronics 3D",
723 	"Delta Integration 3D",
724 	"SigmaTel 3D",
725 	"KS Waves 3D",
726 	"Rockwell 3D",
727 	"Unknown 3D",
728 	"Unknown 3D",
729 	"Unknown 3D",
730 };
731 
732 static const char * const ac97feature[] = {
733 	"dedicated mic channel",
734 	"reserved",
735 	"tone",
736 	"simulated stereo",
737 	"headphone",
738 	"bass boost",
739 	"18 bit DAC",
740 	"20 bit DAC",
741 	"18 bit ADC",
742 	"20 bit ADC"
743 };
744 
745 
746 /* #define AC97_DEBUG 10 */
747 /* #define AC97_IO_DEBUG */
748 
749 #ifdef AUDIO_DEBUG
750 #define DPRINTF(x)	if (ac97debug) printf x
751 #define DPRINTFN(n,x)	if (ac97debug>(n)) printf x
752 #ifdef AC97_DEBUG
753 int	ac97debug = AC97_DEBUG;
754 #else
755 int	ac97debug = 0;
756 #endif
757 #else
758 #define DPRINTF(x)
759 #define DPRINTFN(n,x)
760 #endif
761 
762 #ifdef AC97_IO_DEBUG
763 static const char *ac97_register_names[0x80 / 2] = {
764 	"RESET", "MASTER_VOLUME", "HEADPHONE_VOLUME", "MASTER_VOLUME_MONO",
765 	"MASTER_TONE", "PCBEEP_VOLUME", "PHONE_VOLUME", "MIC_VOLUME",
766 	"LINEIN_VOLUME", "CD_VOLUME", "VIDEO_VOLUME", "AUX_VOLUME",
767 	"PCMOUT_VOLUME", "RECORD_SELECT", "RECORD_GATIN", "RECORD_GAIN_MIC",
768 	"GP", "3D_CONTROL", "AUDIO_INT", "POWER",
769 	"EXT_AUDIO_ID", "EXT_AUDIO_CTRL", "PCM_FRONT_DAC_RATE", "PCM_SURR_DAC_RATE",
770 	"PCM_LFE_DAC_RATE", "PCM_LR_ADC_RATE", "PCM_MIC_ADC_RATE", "CENTER_LFE_MASTER",
771 	"SURR_MASTER", "SPDIF_CTRL", "EXT_MODEM_ID", "EXT_MODEM_CTRL",
772 	"LINE1_RATE", "LINE2_RATE", "HANDSET_RATE", "LINE1_LEVEL",
773 	"LINE2_LEVEL", "HANDSET_LEVEL", "GPIO_PIN_CONFIG", "GPIO_PIN_POLARITY",
774 	"GPIO_PIN_STICKY", "GPIO_PIN_WAKEUP", "GPIO_PIN_STATUS", "MISC_MODEM_CTRL",
775 	"0x58", "VENDOR-5A", "VENDOR-5C", "VENDOR-5E",
776 	"0x60", "0x62", "0x64", "0x66",
777 	"0x68", "0x6a", "0x6c", "0x6e",
778 	"VENDOR-70", "VENDOR-72", "VENDOR-74", "VENDOR-76",
779 	"VENDOR-78", "VENDOR-7A", "VENDOR_ID1", "VENDOR_ID2"
780 };
781 #endif
782 
783 /*
784  * XXX Some cards have an inverted AC97_POWER_EAMP bit.
785  * These cards will produce no sound unless AC97_HOST_INVERTED_EAMP is set.
786  */
787 
788 #define POWER_EAMP_ON(as)  ((as->host_flags & AC97_HOST_INVERTED_EAMP) \
789 			    ? AC97_POWER_EAMP : 0)
790 #define POWER_EAMP_OFF(as) ((as->host_flags & AC97_HOST_INVERTED_EAMP) \
791 			    ? 0 : AC97_POWER_EAMP)
792 
793 static void
794 ac97_read(struct ac97_softc *as, uint8_t reg, uint16_t *val)
795 {
796 	if (as->host_flags & AC97_HOST_DONT_READ &&
797 	    (reg != AC97_REG_VENDOR_ID1 && reg != AC97_REG_VENDOR_ID2 &&
798 	     reg != AC97_REG_RESET)) {
799 		*val = as->shadow_reg[reg >> 1];
800 		return;
801 	}
802 
803 	if (as->host_if->read(as->host_if->arg, reg, val)) {
804 		*val = as->shadow_reg[reg >> 1];
805 	}
806 }
807 
808 static int
809 ac97_write(struct ac97_softc *as, uint8_t reg, uint16_t val)
810 {
811 #ifndef AC97_IO_DEBUG
812 	as->shadow_reg[reg >> 1] = val;
813 	return as->host_if->write(as->host_if->arg, reg, val);
814 #else
815 	int ret;
816 	uint16_t actual;
817 
818 	as->shadow_reg[reg >> 1] = val;
819 	ret = as->host_if->write(as->host_if->arg, reg, val);
820 	as->host_if->read(as->host_if->arg, reg, &actual);
821 	if (val != actual && reg < 0x80) {
822 		printf("ac97_write: reg=%s, written=0x%04x, read=0x%04x\n",
823 		       ac97_register_names[reg / 2], val, actual);
824 	}
825 	return ret;
826 #endif
827 }
828 
829 static void
830 ac97_setup_defaults(struct ac97_softc *as)
831 {
832 	int idx;
833 	const struct ac97_source_info *si;
834 
835 	memset(as->shadow_reg, 0, sizeof(as->shadow_reg));
836 
837 	for (idx = 0; idx < AUDIO_SOURCE_INFO_SIZE; idx++) {
838 		si = &audio_source_info[idx];
839 		ac97_write(as, si->reg, si->default_value);
840 	}
841 	for (idx = 0; idx < MODEM_SOURCE_INFO_SIZE; idx++) {
842 		si = &modem_source_info[idx];
843 		ac97_write(as, si->reg, si->default_value);
844 	}
845 }
846 
847 static void
848 ac97_restore_shadow(struct ac97_codec_if *self)
849 {
850 	struct ac97_softc *as;
851 	const struct ac97_source_info *si;
852 	int idx;
853 	uint16_t val;
854 
855 	as = (struct ac97_softc *) self;
856 
857 	if (as->type == AC97_CODEC_TYPE_AUDIO) {
858 		/* restore AC97_REG_POWER */
859 		ac97_write(as, AC97_REG_POWER, as->power_reg);
860 		/* make sure chip is fully operational */
861 		for (idx = 50000; idx >= 0; idx--) {
862 			ac97_read(as, AC97_REG_POWER, &val);
863 			if ((val & as->power_all) == as->power_all)
864 				break;
865 			DELAY(10);
866 		}
867 
868 		/*
869 		 * actually try changing a value!
870 		 * The default value of AC97_REG_MASTER_VOLUME is 0x8000.
871 		 */
872 		for (idx = 50000; idx >= 0; idx--) {
873 			ac97_write(as, AC97_REG_MASTER_VOLUME, 0x1010);
874 			ac97_read(as, AC97_REG_MASTER_VOLUME, &val);
875 			if (val == 0x1010)
876 				break;
877 			DELAY(10);
878 		}
879 	}
880 
881        for (idx = 0; idx < SOURCE_INFO_SIZE(as); idx++) {
882 		if (as->type == AC97_CODEC_TYPE_MODEM)
883 			si = &modem_source_info[idx];
884 		else
885 			si = &audio_source_info[idx];
886 		/* don't "restore" to the reset reg! */
887 		if (si->reg != AC97_REG_RESET)
888 			ac97_write(as, si->reg, as->shadow_reg[si->reg >> 1]);
889 	}
890 
891 	if (as->ext_id & (AC97_EXT_AUDIO_VRA | AC97_EXT_AUDIO_DRA
892 			  | AC97_EXT_AUDIO_SPDIF | AC97_EXT_AUDIO_VRM
893 			  | AC97_EXT_AUDIO_CDAC | AC97_EXT_AUDIO_SDAC
894 			  | AC97_EXT_AUDIO_LDAC)) {
895 		ac97_write(as, AC97_REG_EXT_AUDIO_CTRL,
896 		    as->shadow_reg[AC97_REG_EXT_AUDIO_CTRL >> 1]);
897 	}
898 	if (as->ext_mid & (AC97_EXT_MODEM_LINE1 | AC97_EXT_MODEM_LINE2
899 			  | AC97_EXT_MODEM_HANDSET | AC97_EXT_MODEM_CID1
900 			  | AC97_EXT_MODEM_CID2 | AC97_EXT_MODEM_ID0
901 			  | AC97_EXT_MODEM_ID1)) {
902 		ac97_write(as, AC97_REG_EXT_MODEM_CTRL,
903 		    as->shadow_reg[AC97_REG_EXT_MODEM_CTRL >> 1]);
904 	}
905 }
906 
907 static int
908 ac97_str_equal(const char *a, const char *b)
909 {
910 	return (a == b) || (a && b && (!strcmp(a, b)));
911 }
912 
913 static int
914 ac97_check_capability(struct ac97_softc *as, int check)
915 {
916 	switch (check) {
917 	case CHECK_NONE:
918 		return 1;
919 	case CHECK_SURROUND:
920 		return as->ext_id & AC97_EXT_AUDIO_SDAC;
921 	case CHECK_CENTER:
922 		return as->ext_id & AC97_EXT_AUDIO_CDAC;
923 	case CHECK_LFE:
924 		return as->ext_id & AC97_EXT_AUDIO_LDAC;
925 	case CHECK_HEADPHONES:
926 		return as->caps & AC97_CAPS_HEADPHONES;
927 	case CHECK_TONE:
928 		return as->caps & AC97_CAPS_TONECTRL;
929 	case CHECK_MIC:
930 		return as->caps & AC97_CAPS_MICIN;
931 	case CHECK_LOUDNESS:
932 		return as->caps & AC97_CAPS_LOUDNESS;
933 	case CHECK_3D:
934 		return AC97_CAPS_ENHANCEMENT(as->caps) != 0;
935 	case CHECK_LINE1:
936 		return as->ext_mid & AC97_EXT_MODEM_LINE1;
937 	case CHECK_LINE2:
938 		return as->ext_mid & AC97_EXT_MODEM_LINE2;
939 	case CHECK_HANDSET:
940 		return as->ext_mid & AC97_EXT_MODEM_HANDSET;
941 	default:
942 		printf("%s: internal error: feature=%d\n", __func__, check);
943 		return 0;
944 	}
945 }
946 
947 static void
948 ac97_setup_source_info(struct ac97_softc *as)
949 {
950 	int idx, ouridx;
951 	struct ac97_source_info *si, *si2;
952 
953 	for (idx = 0, ouridx = 0; idx < SOURCE_INFO_SIZE(as); idx++) {
954 		si = &as->source_info[ouridx];
955 		if (as->type == AC97_CODEC_TYPE_MODEM) {
956 			if (!ac97_check_capability(as,
957 			    modem_source_info[idx].req_feature))
958 				continue;
959 			memcpy(si, &modem_source_info[idx], sizeof(*si));
960 		} else {
961 			if (!ac97_check_capability(as,
962 			    audio_source_info[idx].req_feature))
963 				continue;
964 			memcpy(si, &audio_source_info[idx], sizeof(*si));
965 		}
966 
967 		switch (si->type) {
968 		case AUDIO_MIXER_CLASS:
969 			si->mixer_class = ouridx;
970 			ouridx++;
971 			break;
972 		case AUDIO_MIXER_VALUE:
973 			/* Todo - Test to see if it works */
974 			ouridx++;
975 
976 			/* Add an entry for mute, if necessary */
977 			if (si->mute) {
978 				si = &as->source_info[ouridx];
979 				if (as->type == AC97_CODEC_TYPE_MODEM)
980 					memcpy(si, &modem_source_info[idx],
981 					    sizeof(*si));
982 				else
983 					memcpy(si, &audio_source_info[idx],
984 					    sizeof(*si));
985 				si->qualifier = AudioNmute;
986 				si->type = AUDIO_MIXER_ENUM;
987 				si->info = &ac97_on_off;
988 				si->info_size = sizeof(ac97_on_off);
989 				si->bits = 1;
990 				si->ofs = 15;
991 				si->mute = 0;
992 				si->polarity = 0;
993 				ouridx++;
994 			}
995 			break;
996 		case AUDIO_MIXER_ENUM:
997 			/* Todo - Test to see if it works */
998 			ouridx++;
999 			break;
1000 		default:
1001 			aprint_error ("ac97: shouldn't get here\n");
1002 			break;
1003 		}
1004 	}
1005 
1006 	as->num_source_info = ouridx;
1007 
1008 	for (idx = 0; idx < as->num_source_info; idx++) {
1009 		int idx2, previdx;
1010 
1011 		si = &as->source_info[idx];
1012 
1013 		/* Find mixer class */
1014 		for (idx2 = 0; idx2 < as->num_source_info; idx2++) {
1015 			si2 = &as->source_info[idx2];
1016 
1017 			if (si2->type == AUDIO_MIXER_CLASS &&
1018 			    ac97_str_equal(si->class,
1019 					   si2->class)) {
1020 				si->mixer_class = idx2;
1021 			}
1022 		}
1023 
1024 
1025 		/* Setup prev and next pointers */
1026 		if (si->prev != 0)
1027 			continue;
1028 
1029 		if (si->qualifier)
1030 			continue;
1031 
1032 		si->prev = AUDIO_MIXER_LAST;
1033 		previdx = idx;
1034 
1035 		for (idx2 = 0; idx2 < as->num_source_info; idx2++) {
1036 			if (idx2 == idx)
1037 				continue;
1038 
1039 			si2 = &as->source_info[idx2];
1040 
1041 			if (!si2->prev &&
1042 			    ac97_str_equal(si->class, si2->class) &&
1043 			    ac97_str_equal(si->device, si2->device)) {
1044 				as->source_info[previdx].next = idx2;
1045 				as->source_info[idx2].prev = previdx;
1046 
1047 				previdx = idx2;
1048 			}
1049 		}
1050 
1051 		as->source_info[previdx].next = AUDIO_MIXER_LAST;
1052 	}
1053 }
1054 
1055 /* backward compatibility */
1056 int
1057 ac97_attach(struct ac97_host_if *host_if, struct device *sc_dev)
1058 {
1059 	return ac97_attach_type(host_if, sc_dev, AC97_CODEC_TYPE_AUDIO);
1060 }
1061 
1062 int
1063 ac97_attach_type(struct ac97_host_if *host_if, struct device *sc_dev, int type)
1064 {
1065 	struct ac97_softc *as;
1066 	int error, i, j;
1067 	uint32_t id;
1068 	uint16_t id1, id2;
1069 	uint16_t extstat, rate;
1070 	uint16_t val;
1071 	mixer_ctrl_t ctl;
1072 	void (*initfunc)(struct ac97_softc *);
1073 #define FLAGBUFLEN	140
1074 	char flagbuf[FLAGBUFLEN];
1075 
1076 	initfunc = NULL;
1077 	as = malloc(sizeof(struct ac97_softc), M_DEVBUF, M_WAITOK|M_ZERO);
1078 
1079 	if (as == NULL)
1080 		return ENOMEM;
1081 
1082 	as->codec_if.vtbl = &ac97civ;
1083 	as->host_if = host_if;
1084 	as->type = type;
1085 
1086 	if ((error = host_if->attach(host_if->arg, &as->codec_if))) {
1087 		free(as, M_DEVBUF);
1088 		return error;
1089 	}
1090 
1091 	if (host_if->reset != NULL) {
1092 		if ((error = host_if->reset(host_if->arg))) {
1093 			free(as, M_DEVBUF);
1094 			return error;
1095 		}
1096 	}
1097 
1098 	if (host_if->flags)
1099 		as->host_flags = host_if->flags(host_if->arg);
1100 
1101 	/*
1102 	 * Assume codec has all four power bits.
1103 	 * XXXSCW: what to do for modems?
1104 	 */
1105 	as->power_all = AC97_POWER_REF | AC97_POWER_ANL | AC97_POWER_DAC |
1106 	    AC97_POWER_ADC;
1107 	if (as->type == AC97_CODEC_TYPE_AUDIO) {
1108 		host_if->write(host_if->arg, AC97_REG_RESET, 0);
1109 
1110 		/*
1111 		 * Power-up everything except the analogue mixer.
1112 		 * If this codec doesn't support analogue mixer power-down,
1113 		 * AC97_POWER_MIXER will read back as zero.
1114 		 */
1115 		host_if->write(host_if->arg, AC97_REG_POWER, AC97_POWER_MIXER);
1116 		ac97_read(as, AC97_REG_POWER, &val);
1117 		if ((val & AC97_POWER_MIXER) == 0) {
1118 			/* Codec doesn't support analogue mixer power-down */
1119 			as->power_all &= ~AC97_POWER_ANL;
1120 		}
1121 		host_if->write(host_if->arg, AC97_REG_POWER, POWER_EAMP_ON(as));
1122 
1123 		for (i = 500000; i >= 0; i--) {
1124 			ac97_read(as, AC97_REG_POWER, &val);
1125 			if ((val & as->power_all) == as->power_all)
1126 			       break;
1127 			DELAY(1);
1128 		}
1129 
1130 		/* save AC97_REG_POWER so that we can restore it later */
1131 		ac97_read(as, AC97_REG_POWER, &as->power_reg);
1132 	} else if (as->type == AC97_CODEC_TYPE_MODEM) {
1133 		host_if->write(host_if->arg, AC97_REG_EXT_MODEM_ID, 0);
1134 	}
1135 
1136 	ac97_setup_defaults(as);
1137 	if (as->type == AC97_CODEC_TYPE_AUDIO)
1138 		ac97_read(as, AC97_REG_RESET, &as->caps);
1139 	ac97_read(as, AC97_REG_VENDOR_ID1, &id1);
1140 	ac97_read(as, AC97_REG_VENDOR_ID2, &id2);
1141 
1142 	id = (id1 << 16) | id2;
1143 	aprint_normal("%s: ac97: ", sc_dev->dv_xname);
1144 
1145 	for (i = 0; ; i++) {
1146 		if (ac97codecid[i].id == 0) {
1147 			char pnp[4];
1148 
1149 			AC97_GET_CODEC_ID(id, pnp);
1150 #define ISASCII(c) ((c) >= ' ' && (c) < 0x7f)
1151 			if (ISASCII(pnp[0]) && ISASCII(pnp[1]) &&
1152 			    ISASCII(pnp[2]))
1153 				aprint_normal("%c%c%c%d",
1154 				    pnp[0], pnp[1], pnp[2], pnp[3]);
1155 			else
1156 				aprint_normal("unknown (0x%08x)", id);
1157 			break;
1158 		}
1159 		if (ac97codecid[i].id == (id & ac97codecid[i].mask)) {
1160 			aprint_normal("%s", ac97codecid[i].name);
1161 			if (ac97codecid[i].mask == AC97_VENDOR_ID_MASK) {
1162 				aprint_normal(" (0x%08x)", id);
1163 			}
1164 			initfunc = ac97codecid[i].init;
1165 			break;
1166 		}
1167 	}
1168 	aprint_normal(" codec; ");
1169 	for (i = j = 0; i < 10; i++) {
1170 		if (as->caps & (1 << i)) {
1171 			aprint_normal("%s%s", j ? ", " : "", ac97feature[i]);
1172 			j++;
1173 		}
1174 	}
1175 	aprint_normal("%s%s\n", j ? ", " : "",
1176 	       ac97enhancement[AC97_CAPS_ENHANCEMENT(as->caps)]);
1177 
1178 	as->ac97_clock = AC97_STANDARD_CLOCK;
1179 
1180 	if (as->type == AC97_CODEC_TYPE_AUDIO) {
1181 		ac97_read(as, AC97_REG_EXT_AUDIO_ID, &as->ext_id);
1182 		if (as->ext_id != 0) {
1183 			/* Print capabilities */
1184 			bitmask_snprintf(as->ext_id,
1185 				 "\20\20SECONDARY10\17SECONDARY01"
1186 				 "\14AC97_23\13AC97_22\12AMAP\11LDAC\10SDAC"
1187 				 "\7CDAC\4VRM\3SPDIF\2DRA\1VRA",
1188 				 flagbuf, FLAGBUFLEN);
1189 			aprint_normal("%s: ac97: ext id %s\n", sc_dev->dv_xname,
1190 				      flagbuf);
1191 
1192 			/* Print unusual settings */
1193 			if (as->ext_id & AC97_EXT_AUDIO_DSA_MASK) {
1194 				aprint_normal("%s: ac97: Slot assignment: ",
1195 					      sc_dev->dv_xname);
1196 				switch (as->ext_id & AC97_EXT_AUDIO_DSA_MASK) {
1197 				case AC97_EXT_AUDIO_DSA01:
1198 					aprint_normal("7&8, 6&9, 10&11.\n");
1199 					break;
1200 				case AC97_EXT_AUDIO_DSA10:
1201 					aprint_normal("6&9, 10&11, 3&4.\n");
1202 					break;
1203 				case AC97_EXT_AUDIO_DSA11:
1204 					aprint_normal("10&11, 3&4, 7&8.\n");
1205 					break;
1206 				}
1207 			}
1208 			if (as->host_flags & AC97_HOST_INVERTED_EAMP) {
1209 				aprint_normal("%s: ac97: using inverted "
1210 					      "AC97_POWER_EAMP bit\n",
1211 					      sc_dev->dv_xname);
1212 			}
1213 
1214 			/* Enable and disable features */
1215 			ac97_read(as, AC97_REG_EXT_AUDIO_CTRL, &extstat);
1216 			extstat &= ~AC97_EXT_AUDIO_DRA;
1217 			if (as->ext_id & AC97_EXT_AUDIO_LDAC)
1218 				extstat |= AC97_EXT_AUDIO_LDAC;
1219 			if (as->ext_id & AC97_EXT_AUDIO_SDAC)
1220 				extstat |= AC97_EXT_AUDIO_SDAC;
1221 			if (as->ext_id & AC97_EXT_AUDIO_CDAC)
1222 				extstat |= AC97_EXT_AUDIO_CDAC;
1223 			if (as->ext_id & AC97_EXT_AUDIO_VRM)
1224 				extstat |= AC97_EXT_AUDIO_VRM;
1225 			if (as->ext_id & AC97_EXT_AUDIO_SPDIF) {
1226 				/* Output the same data as DAC to SPDIF output */
1227 				extstat &= ~AC97_EXT_AUDIO_SPSA_MASK;
1228 				extstat |= AC97_EXT_AUDIO_SPSA34;
1229 			}
1230 			if (as->ext_id & AC97_EXT_AUDIO_VRA)
1231 				extstat |= AC97_EXT_AUDIO_VRA;
1232 			ac97_write(as, AC97_REG_EXT_AUDIO_CTRL, extstat);
1233 			if (as->ext_id & AC97_EXT_AUDIO_VRA) {
1234 				/* VRA should be enabled. */
1235 				/* so it claims to do variable rate, let's make sure */
1236 				ac97_write(as, AC97_REG_PCM_FRONT_DAC_RATE,
1237 					   44100);
1238 				ac97_read(as, AC97_REG_PCM_FRONT_DAC_RATE,
1239 					  &rate);
1240 				if (rate != 44100) {
1241 					/* We can't believe ext_id */
1242 					as->ext_id = 0;
1243 					aprint_normal(
1244 					    "%s: Ignore these capabilities.\n",
1245 					    sc_dev->dv_xname);
1246 				}
1247 				/* restore the default value */
1248 				ac97_write(as, AC97_REG_PCM_FRONT_DAC_RATE,
1249 					   AC97_SINGLE_RATE);
1250 			}
1251 		}
1252 	} else if (as->type == AC97_CODEC_TYPE_MODEM) {
1253 		const struct sysctlnode *node;
1254 		const struct sysctlnode *node_line1;
1255 		const struct sysctlnode *node_line2;
1256 		uint16_t xrate = 8000;
1257 		uint16_t xval, reg;
1258 		int err;
1259 
1260 		ac97_read(as, AC97_REG_EXT_MODEM_ID, &as->ext_mid);
1261 		if (as->ext_mid == 0 || as->ext_mid == 0xffff) {
1262 			aprint_normal("%s: no modem codec found\n",
1263 				      sc_dev->dv_xname);
1264 			return ENXIO;
1265 		}
1266 		as->type = AC97_CODEC_TYPE_MODEM;
1267 
1268 		/* Print capabilities */
1269 		bitmask_snprintf(as->ext_mid,
1270 				 "\20\5CID2\4CID1\3HANDSET\2LINE2\1LINE1",
1271 				 flagbuf, FLAGBUFLEN);
1272 		aprint_normal("%s: ac97: ext mid %s", sc_dev->dv_xname,
1273 			      flagbuf);
1274 		aprint_normal(", %s codec\n",
1275 			      (as->ext_mid & 0xc000) == 0 ?
1276 			      "primary" : "secondary");
1277 
1278 		/* Setup modem and sysctls */
1279 		err = sysctl_createv(&as->log, 0, NULL, NULL, 0, CTLTYPE_NODE,
1280 				     "hw", NULL, NULL, 0, NULL, 0, CTL_HW,
1281 				     CTL_EOL);
1282 		if (err != 0)
1283 			goto setup_modem;
1284 		err = sysctl_createv(&as->log, 0, NULL, &node, 0,
1285 				     CTLTYPE_NODE, sc_dev->dv_xname, NULL,
1286 				     NULL, 0, NULL, 0, CTL_HW, CTL_CREATE,
1287 				     CTL_EOL);
1288 		if (err != 0)
1289 			goto setup_modem;
1290 setup_modem:
1291 		/* reset */
1292 		ac97_write(as, AC97_REG_EXT_MODEM_ID, 1);
1293 
1294 		/* program rates */
1295 		xval = 0xff00 & ~AC97_EXT_MODEM_CTRL_PRA;
1296 		if (as->ext_mid & AC97_EXT_MODEM_LINE1) {
1297 			ac97_write(as, AC97_REG_LINE1_RATE, xrate);
1298 			xval &= ~(AC97_EXT_MODEM_CTRL_PRC |
1299 			       AC97_EXT_MODEM_CTRL_PRD);
1300 		}
1301 		if (as->ext_mid & AC97_EXT_MODEM_LINE2) {
1302 			ac97_write(as, AC97_REG_LINE2_RATE, xrate);
1303 			xval &= ~(AC97_EXT_MODEM_CTRL_PRE |
1304 			       AC97_EXT_MODEM_CTRL_PRF);
1305 		}
1306 		if (as->ext_mid & AC97_EXT_MODEM_HANDSET) {
1307 			ac97_write(as, AC97_REG_HANDSET_RATE, xrate);
1308 			xval &= ~(AC97_EXT_MODEM_CTRL_PRG |
1309 			       AC97_EXT_MODEM_CTRL_PRH);
1310 		}
1311 
1312 		/* power-up everything */
1313 		ac97_write(as, AC97_REG_EXT_MODEM_CTRL, 0);
1314 		for (i = 5000; i >= 0; i--) {
1315 			ac97_read(as, AC97_REG_EXT_MODEM_CTRL, &reg);
1316 			if ((reg & /*XXXval*/0xf) == /*XXXval*/0xf)
1317 			       break;
1318 			DELAY(1);
1319 		}
1320 		if (i <= 0) {
1321 			printf("%s: codec not responding, status=0x%x\n",
1322 			    sc_dev->dv_xname, reg);
1323 			return ENXIO;
1324 		}
1325 
1326 		/* setup sysctls */
1327 		if (as->ext_mid & AC97_EXT_MODEM_LINE1) {
1328 			ac97_read(as, AC97_REG_GPIO_CFG, &reg);
1329 			reg &= ~AC97_GPIO_LINE1_OH;
1330 			ac97_write(as, AC97_REG_GPIO_CFG, reg);
1331 			ac97_read(as, AC97_REG_GPIO_POLARITY, &reg);
1332 			reg &= ~AC97_GPIO_LINE1_OH;
1333 			ac97_write(as, AC97_REG_GPIO_POLARITY, reg);
1334 
1335 			err = sysctl_createv(&as->log, 0, NULL, &node_line1,
1336 					     CTLFLAG_READWRITE, CTLTYPE_INT,
1337 					     "line1",
1338 					     SYSCTL_DESCR("off-hook line1"),
1339 					     ac97_sysctl_verify, 0, as, 0,
1340 					     CTL_HW, node->sysctl_num,
1341 					     CTL_CREATE, CTL_EOL);
1342 			if (err != 0)
1343 				goto sysctl_err;
1344 			as->offhook_line1_mib = node_line1->sysctl_num;
1345 		}
1346 		if (as->ext_mid & AC97_EXT_MODEM_LINE2) {
1347 			ac97_read(as, AC97_REG_GPIO_CFG, &reg);
1348 			reg &= ~AC97_GPIO_LINE2_OH;
1349 			ac97_write(as, AC97_REG_GPIO_CFG, reg);
1350 			ac97_read(as, AC97_REG_GPIO_POLARITY, &reg);
1351 			reg &= ~AC97_GPIO_LINE2_OH;
1352 			ac97_write(as, AC97_REG_GPIO_POLARITY, reg);
1353 
1354 			err = sysctl_createv(&as->log, 0, NULL, &node_line2,
1355 					     CTLFLAG_READWRITE, CTLTYPE_INT,
1356 					     "line2",
1357 					     SYSCTL_DESCR("off-hook line2"),
1358 					     ac97_sysctl_verify, 0, as, 0,
1359 					     CTL_HW, node->sysctl_num,
1360 					     CTL_CREATE, CTL_EOL);
1361 			if (err != 0)
1362 				goto sysctl_err;
1363 			as->offhook_line2_mib = node_line2->sysctl_num;
1364 		}
1365 sysctl_err:
1366 
1367 		ac97_write(as, AC97_REG_GPIO_STICKY, 0xffff);
1368 		ac97_write(as, AC97_REG_GPIO_WAKEUP, 0x0);
1369 		ac97_write(as, AC97_REG_MISC_AFE, 0x0);
1370 	}
1371 
1372 	as->source_info = (as->type == AC97_CODEC_TYPE_MODEM ?
1373 			   as->modem_source_info : as->audio_source_info);
1374 	ac97_setup_source_info(as);
1375 
1376 	memset(&ctl, 0, sizeof(ctl));
1377 	/* disable mutes */
1378 	for (i = 0; i < 11; i++) {
1379 		static struct {
1380 			const char *class, *device;
1381 		} d[11] = {
1382 			{ AudioCoutputs, AudioNmaster},
1383 			{ AudioCoutputs, AudioNheadphone},
1384 			{ AudioCoutputs, AudioNsurround},
1385 			{ AudioCoutputs, AudioNcenter},
1386 			{ AudioCoutputs, AudioNlfe},
1387 			{ AudioCinputs, AudioNdac},
1388 			{ AudioCinputs, AudioNcd},
1389 			{ AudioCinputs, AudioNline},
1390 			{ AudioCinputs, AudioNaux},
1391 			{ AudioCinputs, AudioNvideo},
1392 			{ AudioCrecord, AudioNvolume},
1393 		};
1394 
1395 		ctl.type = AUDIO_MIXER_ENUM;
1396 		ctl.un.ord = 0;
1397 
1398 		ctl.dev = ac97_get_portnum_by_name(&as->codec_if,
1399 			d[i].class, d[i].device, AudioNmute);
1400 		ac97_mixer_set_port(&as->codec_if, &ctl);
1401 	}
1402 	ctl.type = AUDIO_MIXER_ENUM;
1403 	ctl.un.ord = 0;
1404 	ctl.dev = ac97_get_portnum_by_name(&as->codec_if, AudioCrecord,
1405 					   AudioNsource, NULL);
1406 	ac97_mixer_set_port(&as->codec_if, &ctl);
1407 
1408 	/* set a reasonable default volume */
1409 	ctl.type = AUDIO_MIXER_VALUE;
1410 	ctl.un.value.num_channels = 2;
1411 	ctl.un.value.level[AUDIO_MIXER_LEVEL_LEFT] = \
1412 	ctl.un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = 127;
1413 	ctl.dev = ac97_get_portnum_by_name(&as->codec_if, AudioCoutputs,
1414 					   AudioNmaster, NULL);
1415 	ac97_mixer_set_port(&as->codec_if, &ctl);
1416 	ctl.dev = ac97_get_portnum_by_name(&as->codec_if, AudioCoutputs,
1417 					   AudioNsurround, NULL);
1418 	ac97_mixer_set_port(&as->codec_if, &ctl);
1419 	ctl.un.value.num_channels = 1;
1420 	ctl.dev = ac97_get_portnum_by_name(&as->codec_if, AudioCoutputs,
1421 					   AudioNcenter, NULL);
1422 	ac97_mixer_set_port(&as->codec_if, &ctl);
1423 	ctl.dev = ac97_get_portnum_by_name(&as->codec_if, AudioCoutputs,
1424 					   AudioNlfe, NULL);
1425 	ac97_mixer_set_port(&as->codec_if, &ctl);
1426 
1427 	if (initfunc != NULL)
1428 		initfunc(as);
1429 
1430 	/* restore AC97_REG_POWER */
1431 	if (as->type == AC97_CODEC_TYPE_AUDIO)
1432 		ac97_write(as, AC97_REG_POWER, as->power_reg);
1433 
1434 	return 0;
1435 }
1436 
1437 static void
1438 ac97_detach(struct ac97_codec_if *codec_if)
1439 {
1440 	struct ac97_softc *as;
1441 
1442 	as = (struct ac97_softc *)codec_if;
1443 	ac97_write(as, AC97_REG_POWER, AC97_POWER_IN | AC97_POWER_OUT
1444 		   | AC97_POWER_MIXER | AC97_POWER_MIXER_VREF
1445 		   | AC97_POWER_ACLINK | AC97_POWER_CLK | AC97_POWER_AUX
1446 		   | POWER_EAMP_OFF(as));
1447 	free(as, M_DEVBUF);
1448 }
1449 
1450 static int
1451 ac97_query_devinfo(struct ac97_codec_if *codec_if, mixer_devinfo_t *dip)
1452 {
1453 	struct ac97_softc *as;
1454 	struct ac97_source_info *si;
1455 	const char *name;
1456 
1457 	as = (struct ac97_softc *)codec_if;
1458 	if (dip->index < as->num_source_info) {
1459 		si = &as->source_info[dip->index];
1460 		dip->type = si->type;
1461 		dip->mixer_class = si->mixer_class;
1462 		dip->prev = si->prev;
1463 		dip->next = si->next;
1464 
1465 		if (si->qualifier)
1466 			name = si->qualifier;
1467 		else if (si->device)
1468 			name = si->device;
1469 		else if (si->class)
1470 			name = si->class;
1471 		else
1472 			name = 0;
1473 
1474 		if (name)
1475 			strcpy(dip->label.name, name);
1476 
1477 		memcpy(&dip->un, si->info, si->info_size);
1478 
1479 		/* Set the delta for volume sources */
1480 		if (dip->type == AUDIO_MIXER_VALUE)
1481 			dip->un.v.delta = 1 << (8 - si->bits);
1482 
1483 		return 0;
1484 	}
1485 
1486 	return ENXIO;
1487 }
1488 
1489 static int
1490 ac97_mixer_set_port(struct ac97_codec_if *codec_if, mixer_ctrl_t *cp)
1491 {
1492 	struct ac97_softc *as;
1493 	struct ac97_source_info *si;
1494 	uint16_t mask;
1495 	uint16_t val, newval;
1496 	int error;
1497 
1498 	as = (struct ac97_softc *)codec_if;
1499 	si = &as->source_info[cp->dev];
1500 	if (cp->dev < 0 || cp->dev >= as->num_source_info)
1501 		return EINVAL;
1502 
1503 	if (cp->type != si->type)
1504 		return EINVAL;
1505 
1506 	ac97_read(as, si->reg, &val);
1507 
1508 	DPRINTFN(5, ("read(%x) = %x\n", si->reg, val));
1509 
1510 	mask = (1 << si->bits) - 1;
1511 
1512 	switch (cp->type) {
1513 	case AUDIO_MIXER_ENUM:
1514 		if (cp->un.ord > mask || cp->un.ord < 0)
1515 			return EINVAL;
1516 
1517 		newval = (cp->un.ord << si->ofs);
1518 		if (si->reg == AC97_REG_RECORD_SELECT) {
1519 			newval |= (newval << (8 + si->ofs));
1520 			mask |= (mask << 8);
1521 			mask = mask << si->ofs;
1522 		} else if (si->reg == AC97_REG_SURR_MASTER) {
1523 			newval = cp->un.ord ? 0x8080 : 0x0000;
1524 			mask = 0x8080;
1525 		} else
1526 			mask = mask << si->ofs;
1527 		break;
1528 	case AUDIO_MIXER_VALUE:
1529 	{
1530 		const struct audio_mixer_value *value = si->info;
1531 		uint16_t  l, r, ol, or;
1532 		int deltal, deltar;
1533 
1534 		if ((cp->un.value.num_channels <= 0) ||
1535 		    (cp->un.value.num_channels > value->num_channels))
1536 			return EINVAL;
1537 
1538 		if (cp->un.value.num_channels == 1) {
1539 			l = r = cp->un.value.level[AUDIO_MIXER_LEVEL_MONO];
1540 		} else {
1541 			if (!(as->host_flags & AC97_HOST_SWAPPED_CHANNELS)) {
1542 				l = cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT];
1543 				r = cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
1544 			} else {	/* left/right is reversed here */
1545 				r = cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT];
1546 				l = cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
1547 			}
1548 
1549 		}
1550 
1551 		if (!si->polarity) {
1552 			l = 255 - l;
1553 			r = 255 - r;
1554 		}
1555 
1556 		ol = (val >> (8+si->ofs)) & mask;
1557 		or = (val >> si->ofs) & mask;
1558 
1559 		deltal = (ol << (8 - si->bits)) - l;
1560 		deltar = (or << (8 - si->bits)) - r;
1561 
1562 		l = l >> (8 - si->bits);
1563 		r = r >> (8 - si->bits);
1564 
1565 		if (deltal && ol == l)
1566 			l += (deltal > 0) ? (l ? -1 : 0) : (l < mask ? 1 : 0);
1567 		if (deltar && or == r)
1568 			r += (deltar > 0) ? (r ? -1 : 0) : (r < mask ? 1 : 0);
1569 
1570 		newval = ((r & mask) << si->ofs);
1571 		if (value->num_channels == 2) {
1572 			newval = newval | ((l & mask) << (si->ofs+8));
1573 			mask |= (mask << 8);
1574 		}
1575 		mask = mask << si->ofs;
1576 		break;
1577 	}
1578 	default:
1579 		return EINVAL;
1580 	}
1581 
1582 	error = ac97_write(as, si->reg, (val & ~mask) | newval);
1583 	if (error)
1584 		return error;
1585 
1586 	return 0;
1587 }
1588 
1589 static int
1590 ac97_get_portnum_by_name(struct ac97_codec_if *codec_if, const char *class,
1591 			 const char *device, const char *qualifier)
1592 {
1593 	struct ac97_softc *as;
1594 	int idx;
1595 
1596 	as = (struct ac97_softc *)codec_if;
1597 	for (idx = 0; idx < as->num_source_info; idx++) {
1598 		struct ac97_source_info *si = &as->source_info[idx];
1599 		if (ac97_str_equal(class, si->class) &&
1600 		    ac97_str_equal(device, si->device) &&
1601 		    ac97_str_equal(qualifier, si->qualifier))
1602 			return idx;
1603 	}
1604 
1605 	return -1;
1606 }
1607 
1608 static int
1609 ac97_mixer_get_port(struct ac97_codec_if *codec_if, mixer_ctrl_t *cp)
1610 {
1611 	struct ac97_softc *as;
1612 	struct ac97_source_info *si;
1613 	uint16_t mask;
1614 	uint16_t val;
1615 
1616 	as = (struct ac97_softc *)codec_if;
1617 	si = &as->source_info[cp->dev];
1618 	if (cp->dev < 0 || cp->dev >= as->num_source_info)
1619 		return EINVAL;
1620 
1621 	if (cp->type != si->type)
1622 		return EINVAL;
1623 
1624 	ac97_read(as, si->reg, &val);
1625 
1626 	DPRINTFN(5, ("read(%x) = %x\n", si->reg, val));
1627 
1628 	mask = (1 << si->bits) - 1;
1629 
1630 	switch (cp->type) {
1631 	case AUDIO_MIXER_ENUM:
1632 		cp->un.ord = (val >> si->ofs) & mask;
1633 		DPRINTFN(4, ("AUDIO_MIXER_ENUM: %x %d %x %d\n",
1634 			     val, si->ofs, mask, cp->un.ord));
1635 		break;
1636 	case AUDIO_MIXER_VALUE:
1637 	{
1638 		const struct audio_mixer_value *value = si->info;
1639 		uint16_t  l, r;
1640 
1641 		if ((cp->un.value.num_channels <= 0) ||
1642 		    (cp->un.value.num_channels > value->num_channels))
1643 			return EINVAL;
1644 
1645 		if (value->num_channels == 1) {
1646 			l = r = (val >> si->ofs) & mask;
1647 		} else {
1648 			if (!(as->host_flags & AC97_HOST_SWAPPED_CHANNELS)) {
1649 				l = (val >> (si->ofs + 8)) & mask;
1650 				r = (val >> si->ofs) & mask;
1651 			} else {	/* host has reversed channels */
1652 				r = (val >> (si->ofs + 8)) & mask;
1653 				l = (val >> si->ofs) & mask;
1654 			}
1655 		}
1656 
1657 		l = (l << (8 - si->bits));
1658 		r = (r << (8 - si->bits));
1659 		if (!si->polarity) {
1660 			l = 255 - l;
1661 			r = 255 - r;
1662 		}
1663 
1664 		/* The EAP driver averages l and r for stereo
1665 		   channels that are requested in MONO mode. Does this
1666 		   make sense? */
1667 		if (cp->un.value.num_channels == 1) {
1668 			cp->un.value.level[AUDIO_MIXER_LEVEL_MONO] = l;
1669 		} else if (cp->un.value.num_channels == 2) {
1670 			cp->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = l;
1671 			cp->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = r;
1672 		}
1673 
1674 		break;
1675 	}
1676 	default:
1677 		return EINVAL;
1678 	}
1679 
1680 	return 0;
1681 }
1682 
1683 
1684 static int
1685 ac97_set_rate(struct ac97_codec_if *codec_if, int target, u_int *rate)
1686 {
1687 	struct ac97_softc *as;
1688 	u_int value;
1689 	uint16_t ext_stat;
1690 	uint16_t actual;
1691 	uint16_t power;
1692 	uint16_t power_bit;
1693 
1694 	as = (struct ac97_softc *)codec_if;
1695 	if (target == AC97_REG_PCM_MIC_ADC_RATE) {
1696 		if (!(as->ext_id & AC97_EXT_AUDIO_VRM)) {
1697 			*rate = AC97_SINGLE_RATE;
1698 			return 0;
1699 		}
1700 	} else {
1701 		if (!(as->ext_id & AC97_EXT_AUDIO_VRA)) {
1702 			*rate = AC97_SINGLE_RATE;
1703 			return 0;
1704 		}
1705 	}
1706 	value = *rate * AC97_STANDARD_CLOCK / as->ac97_clock;
1707 	ext_stat = 0;
1708 	/*
1709 	 * PCM_FRONT_DAC_RATE/PCM_SURR_DAC_RATE/PCM_LFE_DAC_RATE
1710 	 *	Check VRA, DRA
1711 	 * PCM_LR_ADC_RATE
1712 	 *	Check VRA
1713 	 * PCM_MIC_ADC_RATE
1714 	 *	Check VRM
1715 	 */
1716 	switch (target) {
1717 	case AC97_REG_PCM_FRONT_DAC_RATE:
1718 	case AC97_REG_PCM_SURR_DAC_RATE:
1719 	case AC97_REG_PCM_LFE_DAC_RATE:
1720 		power_bit = AC97_POWER_OUT;
1721 		if (!(as->ext_id & AC97_EXT_AUDIO_VRA)) {
1722 			*rate = AC97_SINGLE_RATE;
1723 			return 0;
1724 		}
1725 		if (as->ext_id & AC97_EXT_AUDIO_DRA) {
1726 			ac97_read(as, AC97_REG_EXT_AUDIO_CTRL, &ext_stat);
1727 			if (value > 0x1ffff) {
1728 				return EINVAL;
1729 			} else if (value > 0xffff) {
1730 				/* Enable DRA */
1731 				ext_stat |= AC97_EXT_AUDIO_DRA;
1732 				ac97_write(as, AC97_REG_EXT_AUDIO_CTRL, ext_stat);
1733 				value /= 2;
1734 			} else {
1735 				/* Disable DRA */
1736 				ext_stat &= ~AC97_EXT_AUDIO_DRA;
1737 				ac97_write(as, AC97_REG_EXT_AUDIO_CTRL, ext_stat);
1738 			}
1739 		} else {
1740 			if (value > 0xffff)
1741 				return EINVAL;
1742 		}
1743 		break;
1744 	case AC97_REG_PCM_LR_ADC_RATE:
1745 		power_bit = AC97_POWER_IN;
1746 		if (!(as->ext_id & AC97_EXT_AUDIO_VRA)) {
1747 			*rate = AC97_SINGLE_RATE;
1748 			return 0;
1749 		}
1750 		if (value > 0xffff)
1751 			return EINVAL;
1752 		break;
1753 	case AC97_REG_PCM_MIC_ADC_RATE:
1754 		power_bit = AC97_POWER_IN;
1755 		if (!(as->ext_id & AC97_EXT_AUDIO_VRM)) {
1756 			*rate = AC97_SINGLE_RATE;
1757 			return 0;
1758 		}
1759 		if (value > 0xffff)
1760 			return EINVAL;
1761 		break;
1762 	default:
1763 		printf("%s: Unknown register: 0x%x\n", __func__, target);
1764 		return EINVAL;
1765 	}
1766 
1767 	ac97_read(as, AC97_REG_POWER, &power);
1768 	ac97_write(as, AC97_REG_POWER, power | power_bit);
1769 
1770 	ac97_write(as, target, (uint16_t)value);
1771 	ac97_read(as, target, &actual);
1772 	actual = (uint32_t)actual * as->ac97_clock / AC97_STANDARD_CLOCK;
1773 
1774 	ac97_write(as, AC97_REG_POWER, power);
1775 	if (ext_stat & AC97_EXT_AUDIO_DRA) {
1776 		*rate = actual * 2;
1777 	} else {
1778 		*rate = actual;
1779 	}
1780 	return 0;
1781 }
1782 
1783 static void
1784 ac97_set_clock(struct ac97_codec_if *codec_if, unsigned int clock)
1785 {
1786 	struct ac97_softc *as;
1787 
1788 	as = (struct ac97_softc *)codec_if;
1789 	as->ac97_clock = clock;
1790 }
1791 
1792 static uint16_t
1793 ac97_get_extcaps(struct ac97_codec_if *codec_if)
1794 {
1795 	struct ac97_softc *as;
1796 
1797 	as = (struct ac97_softc *)codec_if;
1798 	return as->ext_id;
1799 }
1800 
1801 static int
1802 ac97_add_port(struct ac97_softc *as, const struct ac97_source_info *src)
1803 {
1804 	struct ac97_source_info *si;
1805 	int ouridx, idx;
1806 
1807 	if ((as->type == AC97_CODEC_TYPE_AUDIO &&
1808 	     as->num_source_info >= AUDIO_MAX_SOURCES) ||
1809 	    (as->type == AC97_CODEC_TYPE_MODEM &&
1810 	     as->num_source_info >= MODEM_MAX_SOURCES)) {
1811 		printf("%s: internal error: increase MAX_SOURCES in %s\n",
1812 		       __func__, __FILE__);
1813 		return -1;
1814 	}
1815 	if (!ac97_check_capability(as, src->req_feature))
1816 		return -1;
1817 	ouridx = as->num_source_info;
1818 	si = &as->source_info[ouridx];
1819 	memcpy(si, src, sizeof(*si));
1820 
1821 	switch (si->type) {
1822 	case AUDIO_MIXER_CLASS:
1823 	case AUDIO_MIXER_VALUE:
1824 		printf("%s: adding class/value is not supported yet.\n",
1825 		       __func__);
1826 		return -1;
1827 	case AUDIO_MIXER_ENUM:
1828 		break;
1829 	default:
1830 		printf("%s: unknown type: %d\n", __func__, si->type);
1831 		return -1;
1832 	}
1833 	as->num_source_info++;
1834 
1835 	si->mixer_class = ac97_get_portnum_by_name(&as->codec_if, si->class,
1836 						   NULL, NULL);
1837 	/* Find the root of the device */
1838 	idx = ac97_get_portnum_by_name(&as->codec_if, si->class,
1839 				       si->device, NULL);
1840 	/* Find the last item */
1841 	while (as->source_info[idx].next != AUDIO_MIXER_LAST)
1842 		idx = as->source_info[idx].next;
1843 	/* Append */
1844 	as->source_info[idx].next = ouridx;
1845 	si->prev = idx;
1846 	si->next = AUDIO_MIXER_LAST;
1847 
1848 	return 0;
1849 }
1850 
1851 /**
1852  * Codec-dependent initialization
1853  */
1854 
1855 #define	AD1980_REG_MISC	0x76
1856 #define		AD1980_MISC_MBG0	0x0001	/* 0 1888/1980/1981 /1985 */
1857 #define		AD1980_MISC_MBG1	0x0002	/* 1 1888/1980/1981 /1985 */
1858 #define		AD1980_MISC_VREFD	0x0004	/* 2 1888/1980/1981 /1985 */
1859 #define		AD1980_MISC_VREFH	0x0008	/* 3 1888/1980/1981 /1985 */
1860 #define		AD1980_MISC_SRU		0x0010	/* 4 1888/1980      /1985 */
1861 #define		AD1980_MISC_LOSEL	0x0020	/* 5 1888/1980/1981 /1985 */
1862 #define		AD1980_MISC_2CMIC	0x0040	/* 6      1980/1981B/1985 */
1863 #define		AD1980_MISC_SPRD	0x0080	/* 7 1888/1980      /1985 */
1864 #define		AD1980_MISC_DMIX0	0x0100	/* 8 1888/1980      /1985 */
1865 #define		AD1980_MISC_DMIX1	0x0200	/* 9 1888/1980      /1985 */
1866 #define		AD1980_MISC_HPSEL	0x0400	/*10 1888/1980      /1985 */
1867 #define		AD1980_MISC_CLDIS	0x0800	/*11 1888/1980      /1985 */
1868 #define		AD1980_MISC_LODIS	0x1000	/*12 1888/1980/1981 /1985 */
1869 #define		AD1980_MISC_MSPLT	0x2000	/*13 1888/1980/1981 /1985 */
1870 #define		AD1980_MISC_AC97NC	0x4000	/*14 1888/1980      /1985 */
1871 #define		AD1980_MISC_DACZ	0x8000	/*15 1888/1980/1981 /1985 */
1872 #define	AD1981_REG_MISC	0x76
1873 #define		AD1981_MISC_MADST	0x0010  /* 4 */
1874 #define		AD1981A_MISC_MADPD	0x0040  /* 6 */
1875 #define		AD1981B_MISC_MADPD	0x0080  /* 7 */
1876 #define		AD1981_MISC_FMXE	0x0200  /* 9 */
1877 #define		AD1981_MISC_DAM		0x0800  /*11 */
1878 static void
1879 ac97_ad198x_init(struct ac97_softc *as)
1880 {
1881 	int i;
1882 	uint16_t misc;
1883 
1884 	ac97_read(as, AD1980_REG_MISC, &misc);
1885 	ac97_write(as, AD1980_REG_MISC,
1886 		   misc | AD1980_MISC_LOSEL | AD1980_MISC_HPSEL);
1887 
1888 	for (i = 0; i < as->num_source_info; i++) {
1889 		if (as->source_info[i].type != AUDIO_MIXER_VALUE)
1890 			continue;
1891 
1892 		if (as->source_info[i].reg == AC97_REG_MASTER_VOLUME)
1893 			as->source_info[i].reg = AC97_REG_SURR_MASTER;
1894 		else if (as->source_info[i].reg == AC97_REG_SURR_MASTER)
1895 			as->source_info[i].reg = AC97_REG_MASTER_VOLUME;
1896 	}
1897 }
1898 
1899 #define ALC650_REG_MULTI_CHANNEL_CONTROL	0x6a
1900 #define		ALC650_MCC_SLOT_MODIFY_MASK		0xc000
1901 #define		ALC650_MCC_FRONTDAC_FROM_SPDIFIN	0x2000 /* 13 */
1902 #define		ALC650_MCC_SPDIFOUT_FROM_ADC		0x1000 /* 12 */
1903 #define		ALC650_MCC_PCM_FROM_SPDIFIN		0x0800 /* 11 */
1904 #define		ALC650_MCC_MIC_OR_CENTERLFE		0x0400 /* 10 */
1905 #define		ALC650_MCC_LINEIN_OR_SURROUND		0x0200 /* 9 */
1906 #define		ALC650_MCC_INDEPENDENT_MASTER_L		0x0080 /* 7 */
1907 #define		ALC650_MCC_INDEPENDENT_MASTER_R		0x0040 /* 6 */
1908 #define		ALC650_MCC_ANALOG_TO_CENTERLFE		0x0020 /* 5 */
1909 #define		ALC650_MCC_ANALOG_TO_SURROUND		0x0010 /* 4 */
1910 #define		ALC650_MCC_EXCHANGE_CENTERLFE		0x0008 /* 3 */
1911 #define		ALC650_MCC_CENTERLFE_DOWNMIX		0x0004 /* 2 */
1912 #define		ALC650_MCC_SURROUND_DOWNMIX		0x0002 /* 1 */
1913 #define		ALC650_MCC_LINEOUT_TO_SURROUND		0x0001 /* 0 */
1914 static void
1915 ac97_alc650_init(struct ac97_softc *as)
1916 {
1917 	static const struct ac97_source_info sources[6] = {
1918 		{ AudioCoutputs, AudioNsurround, "lineinjack",
1919 		  AUDIO_MIXER_ENUM, WRAP(ac97_on_off),
1920 		  ALC650_REG_MULTI_CHANNEL_CONTROL,
1921 		  0x0000, 1, 9, 0, 0, CHECK_SURROUND },
1922 		{ AudioCoutputs, AudioNsurround, "mixtofront",
1923 		  AUDIO_MIXER_ENUM, WRAP(ac97_on_off),
1924 		  ALC650_REG_MULTI_CHANNEL_CONTROL,
1925 		  0x0000, 1, 1, 0, 0, CHECK_SURROUND },
1926 		{ AudioCoutputs, AudioNcenter, "micjack",
1927 		  AUDIO_MIXER_ENUM, WRAP(ac97_on_off),
1928 		  ALC650_REG_MULTI_CHANNEL_CONTROL,
1929 		  0x0000, 1, 10, 0, 0, CHECK_CENTER },
1930 		{ AudioCoutputs, AudioNlfe, "micjack",
1931 		  AUDIO_MIXER_ENUM, WRAP(ac97_on_off),
1932 		  ALC650_REG_MULTI_CHANNEL_CONTROL,
1933 		  0x0000, 1, 10, 0, 0, CHECK_LFE },
1934 		{ AudioCoutputs, AudioNcenter, "mixtofront",
1935 		  AUDIO_MIXER_ENUM, WRAP(ac97_on_off),
1936 		  ALC650_REG_MULTI_CHANNEL_CONTROL,
1937 		  0x0000, 1, 2, 0, 0, CHECK_CENTER },
1938 		{ AudioCoutputs, AudioNlfe, "mixtofront",
1939 		  AUDIO_MIXER_ENUM, WRAP(ac97_on_off),
1940 		  ALC650_REG_MULTI_CHANNEL_CONTROL,
1941 		  0x0000, 1, 2, 0, 0, CHECK_LFE },
1942 	};
1943 
1944 	ac97_add_port(as, &sources[0]);
1945 	ac97_add_port(as, &sources[1]);
1946 	ac97_add_port(as, &sources[2]);
1947 	ac97_add_port(as, &sources[3]);
1948 	ac97_add_port(as, &sources[4]);
1949 	ac97_add_port(as, &sources[5]);
1950 }
1951 
1952 #define VT1616_REG_IO_CONTROL	0x5a
1953 #define		VT1616_IC_LVL			(1 << 15)
1954 #define		VT1616_IC_LFECENTER_TO_FRONT	(1 << 12)
1955 #define		VT1616_IC_SURROUND_TO_FRONT	(1 << 11)
1956 #define		VT1616_IC_BPDC			(1 << 10)
1957 #define		VT1616_IC_DC			(1 << 9)
1958 #define		VT1616_IC_IB_MASK		0x000c
1959 static void
1960 ac97_vt1616_init(struct ac97_softc *as)
1961 {
1962 	static const struct ac97_source_info sources[3] = {
1963 		{ AudioCoutputs, AudioNsurround, "mixtofront",
1964 		  AUDIO_MIXER_ENUM, WRAP(ac97_on_off),
1965 		  VT1616_REG_IO_CONTROL,
1966 		  0x0000, 1, 11, 0, 0, CHECK_SURROUND },
1967 		{ AudioCoutputs, AudioNcenter, "mixtofront",
1968 		  AUDIO_MIXER_ENUM, WRAP(ac97_on_off),
1969 		  VT1616_REG_IO_CONTROL,
1970 		  0x0000, 1, 12, 0, 0, CHECK_CENTER },
1971 		{ AudioCoutputs, AudioNlfe, "mixtofront",
1972 		  AUDIO_MIXER_ENUM, WRAP(ac97_on_off),
1973 		  VT1616_REG_IO_CONTROL,
1974 		  0x0000, 1, 12, 0, 0, CHECK_LFE },
1975 	};
1976 
1977 	ac97_add_port(as, &sources[0]);
1978 	ac97_add_port(as, &sources[1]);
1979 	ac97_add_port(as, &sources[2]);
1980 }
1981 
1982 static int
1983 ac97_modem_offhook_set(struct ac97_softc *as, int line, int newval)
1984 {
1985 	uint16_t val;
1986 
1987 	val = as->shadow_reg[AC97_REG_GPIO_STATUS >> 1];
1988 	switch (newval) {
1989 	case 0:
1990 		val &= ~line;
1991 		break;
1992 	case 1:
1993 		val |= line;
1994 		break;
1995 	}
1996 	ac97_write(as, AC97_REG_GPIO_STATUS, val);
1997 
1998 	return 0;
1999 }
2000 
2001 static int
2002 ac97_sysctl_verify(SYSCTLFN_ARGS)
2003 {
2004 	int error, tmp;
2005 	struct sysctlnode node;
2006 	struct ac97_softc *as;
2007 
2008 	node = *rnode;
2009 	as = rnode->sysctl_data;
2010 	if (node.sysctl_num == as->offhook_line1_mib) {
2011 		tmp = as->offhook_line1;
2012 		node.sysctl_data = &tmp;
2013 		error = sysctl_lookup(SYSCTLFN_CALL(&node));
2014 		if (error || newp == NULL)
2015 			return error;
2016 
2017 		if (tmp < 0 || tmp > 1)
2018 			return EINVAL;
2019 
2020 		as->offhook_line1 = tmp;
2021 		ac97_modem_offhook_set(as, AC97_GPIO_LINE1_OH, tmp);
2022 	} else if (node.sysctl_num == as->offhook_line2_mib) {
2023 		tmp = as->offhook_line2;
2024 		node.sysctl_data = &tmp;
2025 		error = sysctl_lookup(SYSCTLFN_CALL(&node));
2026 		if (error || newp == NULL)
2027 			return error;
2028 
2029 		if (tmp < 0 || tmp > 1)
2030 			return EINVAL;
2031 
2032 		as->offhook_line2 = tmp;
2033 		ac97_modem_offhook_set(as, AC97_GPIO_LINE2_OH, tmp);
2034 	}
2035 
2036 	return 0;
2037 }
2038