xref: /netbsd-src/sys/arch/macppc/dev/snapper.c (revision 404fbe5fb94ca1e054339640cabb2801ce52dd30)
1 /*	$NetBSD: snapper.c,v 1.31 2008/12/16 22:35:24 christos Exp $	*/
2 /*	Id: snapper.c,v 1.11 2002/10/31 17:42:13 tsubai Exp	*/
3 /*	Id: i2s.c,v 1.12 2005/01/15 14:32:35 tsubai Exp		*/
4 
5 /*-
6  * Copyright (c) 2002, 2003 Tsubai Masanari.  All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. The name of the author may not be used to endorse or promote products
17  *    derived from this software without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 /*
32  * Datasheet is available from
33  * http://www.ti.com/sc/docs/products/analog/tas3004.html
34  * http://www.ti.com/sc/docs/products/analog/tas3001.html
35  */
36 
37 #include <sys/cdefs.h>
38 __KERNEL_RCSID(0, "$NetBSD: snapper.c,v 1.31 2008/12/16 22:35:24 christos Exp $");
39 
40 #include <sys/param.h>
41 #include <sys/audioio.h>
42 #include <sys/device.h>
43 #include <sys/systm.h>
44 #include <sys/malloc.h>
45 
46 #include <dev/auconv.h>
47 #include <dev/audio_if.h>
48 #include <dev/mulaw.h>
49 #include <dev/ofw/openfirm.h>
50 #include <macppc/dev/dbdma.h>
51 
52 #include <uvm/uvm_extern.h>
53 #include <dev/i2c/i2cvar.h>
54 
55 #include <machine/autoconf.h>
56 #include <machine/pio.h>
57 
58 #include <macppc/dev/deqvar.h>
59 #include <macppc/dev/obiovar.h>
60 
61 #ifdef SNAPPER_DEBUG
62 # define DPRINTF printf
63 #else
64 # define DPRINTF while (0) printf
65 #endif
66 
67 #define SNAPPER_MAXPAGES	16
68 
69 struct snapper_softc {
70 	device_t sc_dev;
71 	int sc_mode;		  // 0 for TAS3004
72 #define SNAPPER_IS_TAS3001	1 // codec is TAS3001
73 #define SNAPPER_SWVOL		2 // software codec
74 
75 	int sc_node;
76 
77 	struct audio_encoding_set *sc_encodings;
78 
79 	void (*sc_ointr)(void *);	/* dma completion intr handler */
80 	void *sc_oarg;			/* arg for sc_ointr() */
81 	int sc_opages;			/* # of output pages */
82 
83 	void (*sc_iintr)(void *);	/* dma completion intr handler */
84 	void *sc_iarg;			/* arg for sc_iintr() */
85 	int sc_ipages;			/* # of input pages */
86 
87 	u_int sc_record_source;		/* recording source mask */
88 	u_int sc_output_mask;		/* output source mask */
89 
90 	bus_space_tag_t sc_tag;
91 	bus_space_handle_t sc_bsh;
92 	i2c_addr_t sc_deqaddr;
93 	i2c_tag_t sc_i2c;
94 	uint32_t sc_baseaddr;
95 
96 	int sc_rate;                    /* current sampling rate */
97 	int sc_bitspersample;
98 
99 	int sc_swvol;
100 
101 	u_int sc_vol_l;
102 	u_int sc_vol_r;
103 	u_int sc_treble;
104 	u_int sc_bass;
105 	u_int mixer[6]; /* s1_l, s2_l, an_l, s1_r, s2_r, an_r */
106 
107 	bus_space_handle_t sc_odmah;
108 	bus_space_handle_t sc_idmah;
109 	dbdma_regmap_t *sc_odma;
110 	dbdma_regmap_t *sc_idma;
111 	unsigned char	dbdma_cmdspace[sizeof(struct dbdma_command) * 40 + 15];
112 	struct dbdma_command *sc_odmacmd;
113 	struct dbdma_command *sc_idmacmd;
114 };
115 
116 static int snapper_match(device_t, struct cfdata *, void *);
117 static void snapper_attach(device_t, device_t, void *);
118 static void snapper_defer(device_t);
119 static int snapper_intr(void *);
120 static int snapper_query_encoding(void *, struct audio_encoding *);
121 static int snapper_set_params(void *, int, int, audio_params_t *,
122     audio_params_t *, stream_filter_list_t *, stream_filter_list_t *);
123 static int snapper_round_blocksize(void *, int, int, const audio_params_t *);
124 static int snapper_halt_output(void *);
125 static int snapper_halt_input(void *);
126 static int snapper_getdev(void *, struct audio_device *);
127 static int snapper_set_port(void *, mixer_ctrl_t *);
128 static int snapper_get_port(void *, mixer_ctrl_t *);
129 static int snapper_query_devinfo(void *, mixer_devinfo_t *);
130 static size_t snapper_round_buffersize(void *, int, size_t);
131 static paddr_t snapper_mappage(void *, void *, off_t, int);
132 static int snapper_get_props(void *);
133 static int snapper_trigger_output(void *, void *, void *, int, void (*)(void *),
134     void *, const audio_params_t *);
135 static int snapper_trigger_input(void *, void *, void *, int, void (*)(void *),
136     void *, const audio_params_t *);
137 static void snapper_set_volume(struct snapper_softc *, u_int, u_int);
138 static int snapper_set_rate(struct snapper_softc *);
139 static void snapper_set_treble(struct snapper_softc *, u_int);
140 static void snapper_set_bass(struct snapper_softc *, u_int);
141 static void snapper_write_mixers(struct snapper_softc *);
142 
143 static int tas3004_write(struct snapper_softc *, u_int, const void *);
144 static int gpio_read(char *);
145 static void gpio_write(char *, int);
146 static void snapper_mute_speaker(struct snapper_softc *, int);
147 static void snapper_mute_headphone(struct snapper_softc *, int);
148 static int snapper_cint(void *);
149 static int tas3004_init(struct snapper_softc *);
150 static void snapper_init(struct snapper_softc *, int);
151 static void snapper_volume_up(device_t);
152 static void snapper_volume_down(device_t);
153 
154 struct snapper_codecvar {
155 	stream_filter_t	base;
156 
157 #ifdef DIAGNOSTIC
158 # define SNAPPER_CODECVAR_MAGIC		0xC0DEC
159 	uint32_t	magic;
160 #endif // DIAGNOSTIC
161 
162 	int16_t		rval; // for snapper_fixphase
163 };
164 
165 static stream_filter_t *snapper_filter_factory
166 	(int (*)(stream_fetcher_t *, audio_stream_t *, int));
167 static void snapper_filter_dtor(stream_filter_t *);
168 
169 /* XXX We can't access the hw device softc from our audio
170  *     filter -- lame...
171  */
172 static u_int snapper_vol_l = 128, snapper_vol_r = 128;
173 
174 /* XXX why doesn't auconv define this? */
175 #define DEFINE_FILTER(name)	\
176 static int \
177 name##_fetch_to(stream_fetcher_t *, audio_stream_t *, int); \
178 stream_filter_t * name(struct audio_softc *, \
179     const audio_params_t *, const audio_params_t *); \
180 stream_filter_t * \
181 name(struct audio_softc *sc, const audio_params_t *from, \
182      const audio_params_t *to) \
183 { \
184 	return snapper_filter_factory(name##_fetch_to); \
185 } \
186 static int \
187 name##_fetch_to(stream_fetcher_t *self, audio_stream_t *dst, int max_used)
188 
189 DEFINE_FILTER(snapper_volume)
190 {
191 	stream_filter_t *this;
192 	int16_t j;
193 	int16_t *wp;
194 	int m, err;
195 
196 	this = (stream_filter_t *)self;
197 	max_used = (max_used + 1) & ~1;
198 	if ((err = this->prev->fetch_to(this->prev, this->src, max_used)))
199 		return err;
200 	m = (dst->end - dst->start) & ~1;
201 	m = min(m, max_used);
202 	FILTER_LOOP_PROLOGUE(this->src, 2, dst, 2, m) {
203 		j = (s[0] << 8 | s[1]);
204 		wp = (int16_t *)d;
205 		*wp = ((j * snapper_vol_l) / 255);
206 	} FILTER_LOOP_EPILOGUE(this->src, dst);
207 
208 	return 0;
209 }
210 
211 /*
212  * A hardware bug in the TAS3004 I2S transport
213  * produces phase differences between channels
214  * (left channel appears delayed by one sample).
215  * Fix the phase difference by delaying the right channel
216  * by one sample.
217  */
218 DEFINE_FILTER(snapper_fixphase)
219 {
220 	struct snapper_codecvar *cv = (struct snapper_codecvar *) self;
221 	stream_filter_t *this = &cv->base;
222 	int err, m;
223 	const int16_t *rp;
224 	int16_t *wp, rval = cv->rval;
225 
226 #ifdef DIAGNOSTIC
227 	if (cv->magic != SNAPPER_CODECVAR_MAGIC)
228 		panic("snapper_fixphase");
229 #endif
230 	max_used = (max_used + 3) & ~2;
231 	if ((err = this->prev->fetch_to(this->prev, this->src, max_used)))
232 		return err;
233 
234 	/* work in stereo frames (4 bytes) */
235 	m = (dst->end - dst->start) & ~2;
236 	m = min(m, max_used);
237 	FILTER_LOOP_PROLOGUE(this->src, 4, dst, 4, m) {
238 		rp = (const int16_t *) s;
239 		wp = (int16_t *) d;
240 		wp[0] = rp[0];
241 		wp[1] = rval;
242 		rval = rp[1];
243 	} FILTER_LOOP_EPILOGUE(this->src, dst);
244 	cv->rval = rval;
245 
246 	return 0;
247 }
248 
249 static stream_filter_t *
250 snapper_filter_factory(int (*fetch_to)(stream_fetcher_t *, audio_stream_t *, int))
251 {
252 	struct snapper_codecvar *this;
253 
254 	this = malloc(sizeof(*this), M_DEVBUF, M_WAITOK | M_ZERO);
255 	this->base.base.fetch_to = fetch_to;
256 	this->base.dtor = snapper_filter_dtor;
257 	this->base.set_fetcher = stream_filter_set_fetcher;
258 	this->base.set_inputbuffer = stream_filter_set_inputbuffer;
259 
260 #ifdef DIAGNOSTIC
261 	this->magic = SNAPPER_CODECVAR_MAGIC;
262 #endif
263 	return (stream_filter_t *) this;
264 }
265 
266 static void
267 snapper_filter_dtor(stream_filter_t *this)
268 {
269 	if (this != NULL)
270 		free(this, M_DEVBUF);
271 }
272 
273 CFATTACH_DECL_NEW(snapper, sizeof(struct snapper_softc), snapper_match,
274 	snapper_attach, NULL, NULL);
275 
276 const struct audio_hw_if snapper_hw_if = {
277 	NULL,
278 	NULL,
279 	NULL,
280 	snapper_query_encoding,
281 	snapper_set_params,
282 	snapper_round_blocksize,
283 	NULL,
284 	NULL,
285 	NULL,
286 	NULL,
287 	NULL,
288 	snapper_halt_output,
289 	snapper_halt_input,
290 	NULL,
291 	snapper_getdev,
292 	NULL,
293 	snapper_set_port,
294 	snapper_get_port,
295 	snapper_query_devinfo,
296 	NULL,
297 	NULL,
298 	snapper_round_buffersize,
299 	snapper_mappage,
300 	snapper_get_props,
301 	snapper_trigger_output,
302 	snapper_trigger_input,
303 	NULL,
304 	NULL
305 };
306 
307 struct audio_device snapper_device = {
308 	"SNAPPER",
309 	"",
310 	"snapper"
311 };
312 
313 #define SNAPPER_BASSTAB_0DB	18
314 const uint8_t snapper_basstab[] = {
315 	0x96,	/* -18dB */
316 	0x94,	/* -17dB */
317 	0x92,	/* -16dB */
318 	0x90,	/* -15dB */
319 	0x8e,	/* -14dB */
320 	0x8c,	/* -13dB */
321 	0x8a,	/* -12dB */
322 	0x88,	/* -11dB */
323 	0x86,	/* -10dB */
324 	0x84,	/* -9dB */
325 	0x82,	/* -8dB */
326 	0x80,	/* -7dB */
327 	0x7e,	/* -6dB */
328 	0x7c,	/* -5dB */
329 	0x7a,	/* -4dB */
330 	0x78,	/* -3dB */
331 	0x76,	/* -2dB */
332 	0x74,	/* -1dB */
333 	0x72,	/* 0dB */
334 	0x6f,	/* 1dB */
335 	0x6d,	/* 2dB */
336 	0x6a,	/* 3dB */
337 	0x67,	/* 4dB */
338 	0x65,	/* 5dB */
339 	0x62,	/* 6dB */
340 	0x5f,	/* 7dB */
341 	0x5b,	/* 8dB */
342 	0x55,	/* 9dB */
343 	0x4f,	/* 10dB */
344 	0x49,	/* 11dB */
345 	0x43,	/* 12dB */
346 	0x3b,	/* 13dB */
347 	0x33,	/* 14dB */
348 	0x29,	/* 15dB */
349 	0x1e,	/* 16dB */
350 	0x11,	/* 17dB */
351 	0x01,	/* 18dB */
352 };
353 
354 #define SNAPPER_MIXER_GAIN_0DB		36
355 const uint8_t snapper_mixer_gain[178][3] = {
356 	{ 0x7f, 0x17, 0xaf }, /* 18.0 dB */
357 	{ 0x77, 0xfb, 0xaa }, /* 17.5 dB */
358 	{ 0x71, 0x45, 0x75 }, /* 17.0 dB */
359 	{ 0x6a, 0xef, 0x5d }, /* 16.5 dB */
360 	{ 0x64, 0xf4, 0x03 }, /* 16.0 dB */
361 	{ 0x5f, 0x4e, 0x52 }, /* 15.5 dB */
362 	{ 0x59, 0xf9, 0x80 }, /* 15.0 dB */
363 	{ 0x54, 0xf1, 0x06 }, /* 14.5 dB */
364 	{ 0x50, 0x30, 0xa1 }, /* 14.0 dB */
365 	{ 0x4b, 0xb4, 0x46 }, /* 13.5 dB */
366 	{ 0x47, 0x78, 0x28 }, /* 13.0 dB */
367 	{ 0x43, 0x78, 0xb0 }, /* 12.5 dB */
368 	{ 0x3f, 0xb2, 0x78 }, /* 12.0 dB */
369 	{ 0x3c, 0x22, 0x4c }, /* 11.5 dB */
370 	{ 0x38, 0xc5, 0x28 }, /* 11.0 dB */
371 	{ 0x35, 0x98, 0x2f }, /* 10.5 dB */
372 	{ 0x32, 0x98, 0xb0 }, /* 10.0 dB */
373 	{ 0x2f, 0xc4, 0x20 }, /* 9.5 dB */
374 	{ 0x2d, 0x18, 0x18 }, /* 9.0 dB */
375 	{ 0x2a, 0x92, 0x54 }, /* 8.5 dB */
376 	{ 0x28, 0x30, 0xaf }, /* 8.0 dB */
377 	{ 0x25, 0xf1, 0x25 }, /* 7.5 dB */
378 	{ 0x23, 0xd1, 0xcd }, /* 7.0 dB */
379 	{ 0x21, 0xd0, 0xd9 }, /* 6.5 dB */
380 	{ 0x1f, 0xec, 0x98 }, /* 6.0 dB */
381 	{ 0x1e, 0x23, 0x6d }, /* 5.5 dB */
382 	{ 0x1c, 0x73, 0xd5 }, /* 5.0 dB */
383 	{ 0x1a, 0xdc, 0x61 }, /* 4.5 dB */
384 	{ 0x19, 0x5b, 0xb8 }, /* 4.0 dB */
385 	{ 0x17, 0xf0, 0x94 }, /* 3.5 dB */
386 	{ 0x16, 0x99, 0xc0 }, /* 3.0 dB */
387 	{ 0x15, 0x56, 0x1a }, /* 2.5 dB */
388 	{ 0x14, 0x24, 0x8e }, /* 2.0 dB */
389 	{ 0x13, 0x04, 0x1a }, /* 1.5 dB */
390 	{ 0x11, 0xf3, 0xc9 }, /* 1.0 dB */
391 	{ 0x10, 0xf2, 0xb4 }, /* 0.5 dB */
392 	{ 0x10, 0x00, 0x00 }, /* 0.0 dB */
393 	{ 0x0f, 0x1a, 0xdf }, /* -0.5 dB */
394 	{ 0x0e, 0x42, 0x90 }, /* -1.0 dB */
395 	{ 0x0d, 0x76, 0x5a }, /* -1.5 dB */
396 	{ 0x0c, 0xb5, 0x91 }, /* -2.0 dB */
397 	{ 0x0b, 0xff, 0x91 }, /* -2.5 dB */
398 	{ 0x0b, 0x53, 0xbe }, /* -3.0 dB */
399 	{ 0x0a, 0xb1, 0x89 }, /* -3.5 dB */
400 	{ 0x0a, 0x18, 0x66 }, /* -4.0 dB */
401 	{ 0x09, 0x87, 0xd5 }, /* -4.5 dB */
402 	{ 0x08, 0xff, 0x59 }, /* -5.0 dB */
403 	{ 0x08, 0x7e, 0x80 }, /* -5.5 dB */
404 	{ 0x08, 0x04, 0xdc }, /* -6.0 dB */
405 	{ 0x07, 0x92, 0x07 }, /* -6.5 dB */
406 	{ 0x07, 0x25, 0x9d }, /* -7.0 dB */
407 	{ 0x06, 0xbf, 0x44 }, /* -7.5 dB */
408 	{ 0x06, 0x5e, 0xa5 }, /* -8.0 dB */
409 	{ 0x06, 0x03, 0x6e }, /* -8.5 dB */
410 	{ 0x05, 0xad, 0x50 }, /* -9.0 dB */
411 	{ 0x05, 0x5c, 0x04 }, /* -9.5 dB */
412 	{ 0x05, 0x0f, 0x44 }, /* -10.0 dB */
413 	{ 0x04, 0xc6, 0xd0 }, /* -10.5 dB */
414 	{ 0x04, 0x82, 0x68 }, /* -11.0 dB */
415 	{ 0x04, 0x41, 0xd5 }, /* -11.5 dB */
416 	{ 0x04, 0x04, 0xde }, /* -12.0 dB */
417 	{ 0x03, 0xcb, 0x50 }, /* -12.5 dB */
418 	{ 0x03, 0x94, 0xfa }, /* -13.0 dB */
419 	{ 0x03, 0x61, 0xaf }, /* -13.5 dB */
420 	{ 0x03, 0x31, 0x42 }, /* -14.0 dB */
421 	{ 0x03, 0x03, 0x8a }, /* -14.5 dB */
422 	{ 0x02, 0xd8, 0x62 }, /* -15.0 dB */
423 	{ 0x02, 0xaf, 0xa3 }, /* -15.5 dB */
424 	{ 0x02, 0x89, 0x2c }, /* -16.0 dB */
425 	{ 0x02, 0x64, 0xdb }, /* -16.5 dB */
426 	{ 0x02, 0x42, 0x93 }, /* -17.0 dB */
427 	{ 0x02, 0x22, 0x35 }, /* -17.5 dB */
428 	{ 0x02, 0x03, 0xa7 }, /* -18.0 dB */
429 	{ 0x01, 0xe6, 0xcf }, /* -18.5 dB */
430 	{ 0x01, 0xcb, 0x94 }, /* -19.0 dB */
431 	{ 0x01, 0xb1, 0xde }, /* -19.5 dB */
432 	{ 0x01, 0x99, 0x99 }, /* -20.0 dB */
433 	{ 0x01, 0x82, 0xaf }, /* -20.5 dB */
434 	{ 0x01, 0x6d, 0x0e }, /* -21.0 dB */
435 	{ 0x01, 0x58, 0xa2 }, /* -21.5 dB */
436 	{ 0x01, 0x45, 0x5b }, /* -22.0 dB */
437 	{ 0x01, 0x33, 0x28 }, /* -22.5 dB */
438 	{ 0x01, 0x21, 0xf9 }, /* -23.0 dB */
439 	{ 0x01, 0x11, 0xc0 }, /* -23.5 dB */
440 	{ 0x01, 0x02, 0x70 }, /* -24.0 dB */
441 	{ 0x00, 0xf3, 0xfb }, /* -24.5 dB */
442 	{ 0x00, 0xe6, 0x55 }, /* -25.0 dB */
443 	{ 0x00, 0xd9, 0x73 }, /* -25.5 dB */
444 	{ 0x00, 0xcd, 0x49 }, /* -26.0 dB */
445 	{ 0x00, 0xc1, 0xcd }, /* -26.5 dB */
446 	{ 0x00, 0xb6, 0xf6 }, /* -27.0 dB */
447 	{ 0x00, 0xac, 0xba }, /* -27.5 dB */
448 	{ 0x00, 0xa3, 0x10 }, /* -28.0 dB */
449 	{ 0x00, 0x99, 0xf1 }, /* -28.5 dB */
450 	{ 0x00, 0x91, 0x54 }, /* -29.0 dB */
451 	{ 0x00, 0x89, 0x33 }, /* -29.5 dB */
452 	{ 0x00, 0x81, 0x86 }, /* -30.0 dB */
453 	{ 0x00, 0x7a, 0x48 }, /* -30.5 dB */
454 	{ 0x00, 0x73, 0x70 }, /* -31.0 dB */
455 	{ 0x00, 0x6c, 0xfb }, /* -31.5 dB */
456 	{ 0x00, 0x66, 0xe3 }, /* -32.0 dB */
457 	{ 0x00, 0x61, 0x21 }, /* -32.5 dB */
458 	{ 0x00, 0x5b, 0xb2 }, /* -33.0 dB */
459 	{ 0x00, 0x56, 0x91 }, /* -33.5 dB */
460 	{ 0x00, 0x51, 0xb9 }, /* -34.0 dB */
461 	{ 0x00, 0x4d, 0x27 }, /* -34.5 dB */
462 	{ 0x00, 0x48, 0xd6 }, /* -35.0 dB */
463 	{ 0x00, 0x44, 0xc3 }, /* -35.5 dB */
464 	{ 0x00, 0x40, 0xea }, /* -36.0 dB */
465 	{ 0x00, 0x3d, 0x49 }, /* -36.5 dB */
466 	{ 0x00, 0x39, 0xdb }, /* -37.0 dB */
467 	{ 0x00, 0x36, 0x9e }, /* -37.5 dB */
468 	{ 0x00, 0x33, 0x90 }, /* -38.0 dB */
469 	{ 0x00, 0x30, 0xae }, /* -38.5 dB */
470 	{ 0x00, 0x2d, 0xf5 }, /* -39.0 dB */
471 	{ 0x00, 0x2b, 0x63 }, /* -39.5 dB */
472 	{ 0x00, 0x28, 0xf5 }, /* -40.0 dB */
473 	{ 0x00, 0x26, 0xab }, /* -40.5 dB */
474 	{ 0x00, 0x24, 0x81 }, /* -41.0 dB */
475 	{ 0x00, 0x22, 0x76 }, /* -41.5 dB */
476 	{ 0x00, 0x20, 0x89 }, /* -42.0 dB */
477 	{ 0x00, 0x1e, 0xb7 }, /* -42.5 dB */
478 	{ 0x00, 0x1c, 0xff }, /* -43.0 dB */
479 	{ 0x00, 0x1b, 0x60 }, /* -43.5 dB */
480 	{ 0x00, 0x19, 0xd8 }, /* -44.0 dB */
481 	{ 0x00, 0x18, 0x65 }, /* -44.5 dB */
482 	{ 0x00, 0x17, 0x08 }, /* -45.0 dB */
483 	{ 0x00, 0x15, 0xbe }, /* -45.5 dB */
484 	{ 0x00, 0x14, 0x87 }, /* -46.0 dB */
485 	{ 0x00, 0x13, 0x61 }, /* -46.5 dB */
486 	{ 0x00, 0x12, 0x4b }, /* -47.0 dB */
487 	{ 0x00, 0x11, 0x45 }, /* -47.5 dB */
488 	{ 0x00, 0x10, 0x4e }, /* -48.0 dB */
489 	{ 0x00, 0x0f, 0x64 }, /* -48.5 dB */
490 	{ 0x00, 0x0e, 0x88 }, /* -49.0 dB */
491 	{ 0x00, 0x0d, 0xb8 }, /* -49.5 dB */
492 	{ 0x00, 0x0c, 0xf3 }, /* -50.0 dB */
493 	{ 0x00, 0x0c, 0x3a }, /* -50.5 dB */
494 	{ 0x00, 0x0b, 0x8b }, /* -51.0 dB */
495 	{ 0x00, 0x0a, 0xe5 }, /* -51.5 dB */
496 	{ 0x00, 0x0a, 0x49 }, /* -52.0 dB */
497 	{ 0x00, 0x09, 0xb6 }, /* -52.5 dB */
498 	{ 0x00, 0x09, 0x2b }, /* -53.0 dB */
499 	{ 0x00, 0x08, 0xa8 }, /* -53.5 dB */
500 	{ 0x00, 0x08, 0x2c }, /* -54.0 dB */
501 	{ 0x00, 0x07, 0xb7 }, /* -54.5 dB */
502 	{ 0x00, 0x07, 0x48 }, /* -55.0 dB */
503 	{ 0x00, 0x06, 0xe0 }, /* -55.5 dB */
504 	{ 0x00, 0x06, 0x7d }, /* -56.0 dB */
505 	{ 0x00, 0x06, 0x20 }, /* -56.5 dB */
506 	{ 0x00, 0x05, 0xc9 }, /* -57.0 dB */
507 	{ 0x00, 0x05, 0x76 }, /* -57.5 dB */
508 	{ 0x00, 0x05, 0x28 }, /* -58.0 dB */
509 	{ 0x00, 0x04, 0xde }, /* -58.5 dB */
510 	{ 0x00, 0x04, 0x98 }, /* -59.0 dB */
511 	{ 0x00, 0x04, 0x56 }, /* -59.5 dB */
512 	{ 0x00, 0x04, 0x18 }, /* -60.0 dB */
513 	{ 0x00, 0x03, 0xdd }, /* -60.5 dB */
514 	{ 0x00, 0x03, 0xa6 }, /* -61.0 dB */
515 	{ 0x00, 0x03, 0x72 }, /* -61.5 dB */
516 	{ 0x00, 0x03, 0x40 }, /* -62.0 dB */
517 	{ 0x00, 0x03, 0x12 }, /* -62.5 dB */
518 	{ 0x00, 0x02, 0xe6 }, /* -63.0 dB */
519 	{ 0x00, 0x02, 0xbc }, /* -63.5 dB */
520 	{ 0x00, 0x02, 0x95 }, /* -64.0 dB */
521 	{ 0x00, 0x02, 0x70 }, /* -64.5 dB */
522 	{ 0x00, 0x02, 0x4d }, /* -65.0 dB */
523 	{ 0x00, 0x02, 0x2c }, /* -65.5 dB */
524 	{ 0x00, 0x02, 0x0d }, /* -66.0 dB */
525 	{ 0x00, 0x01, 0xf0 }, /* -66.5 dB */
526 	{ 0x00, 0x01, 0xd4 }, /* -67.0 dB */
527 	{ 0x00, 0x01, 0xba }, /* -67.5 dB */
528 	{ 0x00, 0x01, 0xa1 }, /* -68.0 dB */
529 	{ 0x00, 0x01, 0x8a }, /* -68.5 dB */
530 	{ 0x00, 0x01, 0x74 }, /* -69.0 dB */
531 	{ 0x00, 0x01, 0x5f }, /* -69.5 dB */
532 	{ 0x00, 0x01, 0x4b }, /* -70.0 dB */
533 	{ 0x00, 0x00, 0x00 }  /* Mute */
534 };
535 
536 #define SNAPPER_NFORMATS	2
537 static const struct audio_format snapper_formats[SNAPPER_NFORMATS] = {
538 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_BE, 16, 16,
539 	 2, AUFMT_STEREO, 3, {32000, 44100, 48000}},
540 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_BE, 24, 24,
541 	 2, AUFMT_STEREO, 3, {32000, 44100, 48000}},
542 };
543 
544 #define TUMBLER_NFORMATS	1
545 static const struct audio_format tumbler_formats[TUMBLER_NFORMATS] = {
546 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_BE, 16, 16,
547 	 2, AUFMT_STEREO, 4, {32000, 44100, 48000, 96000}},
548 };
549 
550 static u_char *amp_mute;
551 static u_char *headphone_mute;
552 static u_char *audio_hw_reset;
553 static u_char *headphone_detect;
554 static int headphone_detect_active;
555 
556 
557 /* I2S registers */
558 #define I2S_INT		0x00
559 #define I2S_FORMAT	0x10
560 #define I2S_FRAMECOUNT	0x40
561 #define I2S_FRAMEMATCH	0x50
562 #define I2S_WORDSIZE	0x60
563 
564 /* I2S_INT register definitions */
565 #define I2S_INT_CLKSTOPPEND 0x01000000  /* clock-stop interrupt pending */
566 
567 /* FCR(0x3c) bits */
568 #define KEYLARGO_FCR1   0x3c
569 #define  I2S0CLKEN      0x1000
570 #define  I2S0EN         0x2000
571 #define  I2S1CLKEN      0x080000
572 #define  I2S1EN         0x100000
573 #define FCR3C_BITMASK "\020\25I2S1EN\24I2S1CLKEN\16I2S0EN\15I2S0CLKEN"
574 
575 /* TAS3004/TAS3001 registers */
576 #define DEQ_MCR1	0x01	/* Main control register 1 (1byte) */
577 #define DEQ_DRC		0x02	/* Dynamic range compression (6bytes?)
578                             	   2 bytes (reserved) on the TAS 3001 */
579 #define DEQ_VOLUME	0x04	/* Volume (6bytes) */
580 #define DEQ_TREBLE	0x05	/* Treble control (1byte) */
581 #define DEQ_BASS	0x06	/* Bass control (1byte) */
582 #define DEQ_MIXER_L	0x07	/* Mixer left gain (9bytes; 3 on TAS3001) */
583 #define DEQ_MIXER_R	0x08	/* Mixer right gain (9bytes; 3 on TAS3001) */
584 #define DEQ_LB0		0x0a	/* Left biquad 0 (15bytes) */
585 #define DEQ_LB1		0x0b	/* Left biquad 1 (15bytes) */
586 #define DEQ_LB2		0x0c	/* Left biquad 2 (15bytes) */
587 #define DEQ_LB3		0x0d	/* Left biquad 3 (15bytes) */
588 #define DEQ_LB4		0x0e	/* Left biquad 4 (15bytes) */
589 #define DEQ_LB5		0x0f	/* Left biquad 5 (15bytes) */
590 #define DEQ_LB6		0x10	/* Left biquad 6 (15bytes) */
591 #define DEQ_RB0		0x13	/* Right biquad 0 (15bytes) */
592 #define DEQ_RB1		0x14	/* Right biquad 1 (15bytes) */
593 #define DEQ_RB2		0x15	/* Right biquad 2 (15bytes) */
594 #define DEQ_RB3		0x16	/* Right biquad 3 (15bytes) */
595 #define DEQ_RB4		0x17	/* Right biquad 4 (15bytes) */
596 #define DEQ_RB5		0x18	/* Right biquad 5 (15bytes) */
597 #define DEQ_RB6		0x19	/* Right biquad 6 (15bytes) */
598 #define DEQ_LLB		0x21	/* Left loudness biquad (15bytes) */
599 #define DEQ_RLB		0x22	/* Right loudness biquad (15bytes) */
600 #define DEQ_LLB_GAIN	0x23	/* Left loudness biquad gain (3bytes) */
601 #define DEQ_RLB_GAIN	0x24	/* Right loudness biquad gain (3bytes) */
602 #define DEQ_ACR		0x40	/* [TAS3004] Analog control register (1byte) */
603 #define DEQ_MCR2	0x43	/* [TAS3004] Main control register 2 (1byte) */
604 #define DEQ_MCR1_FL	0x80	/* Fast load */
605 #define DEQ_MCR1_SC	0x40	/* SCLK frequency */
606 #define  DEQ_MCR1_SC_32	0x00	/*  32fs */
607 #define  DEQ_MCR1_SC_64	0x40	/*  64fs */
608 #define DEQ_MCR1_SM	0x30	/* Output serial port mode */
609 #define  DEQ_MCR1_SM_L	0x00	/*  Left justified */
610 #define  DEQ_MCR1_SM_R	0x10	/*  Right justified */
611 #define  DEQ_MCR1_SM_I2S 0x20	/*  I2S */
612 #define DEQ_MCR1_ISM	0x0c	/* [TAS3001] Input serial port mode */
613 #define  DEQ_MCR1_ISM_L	0x00	/*           Left justified */
614 #define  DEQ_MCR1_ISM_R	0x04	/*           Right justified */
615 #define  DEQ_MCR1_ISM_I2S 0x08	/*           I2S */
616 #define DEQ_MCR1_W	0x03	/* Serial port word length */
617 #define  DEQ_MCR1_W_16	0x00	/*  16 bit */
618 #define  DEQ_MCR1_W_18	0x01	/*  18 bit */
619 #define  DEQ_MCR1_W_20	0x02	/*  20 bit */
620 #define  DEQ_MCR1_W_24	0x03	/*  20 bit */
621 
622 #define DEQ_MCR2_DL	0x80	/* Download */
623 #define DEQ_MCR2_AP	0x02	/* All pass mode */
624 
625 #define DEQ_ACR_ADM	0x80	/* ADC output mode */
626 #define DEQ_ACR_LRB	0x40	/* Select B input */
627 #define DEQ_ACR_DM	0x0c	/* De-emphasis control */
628 #define  DEQ_ACR_DM_OFF	0x00	/*  off */
629 #define  DEQ_ACR_DM_48	0x04	/*  fs = 48kHz */
630 #define  DEQ_ACR_DM_44	0x08	/*  fs = 44.1kHz */
631 #define DEQ_ACR_INP	0x02	/* Analog input select */
632 #define  DEQ_ACR_INP_A	0x00	/*  A */
633 #define  DEQ_ACR_INP_B	0x02	/*  B */
634 #define DEQ_ACR_APD	0x01	/* Analog power down */
635 
636 struct tas3004_reg {
637 	u_char MCR1[1];
638 	u_char DRC[6];
639 	u_char VOLUME[6];
640 	u_char TREBLE[1];
641 	u_char BASS[1];
642 	u_char MIXER_L[9];
643 	u_char MIXER_R[9];
644 	u_char LB0[15];
645 	u_char LB1[15];
646 	u_char LB2[15];
647 	u_char LB3[15];
648 	u_char LB4[15];
649 	u_char LB5[15];
650 	u_char LB6[15];
651 	u_char RB0[15];
652 	u_char RB1[15];
653 	u_char RB2[15];
654 	u_char RB3[15];
655 	u_char RB4[15];
656 	u_char RB5[15];
657 	u_char RB6[15];
658 	u_char LLB[15];
659 	u_char RLB[15];
660 	u_char LLB_GAIN[3];
661 	u_char RLB_GAIN[3];
662 	u_char ACR[1];
663 	u_char MCR2[1];
664 };
665 
666 #define GPIO_OUTSEL	0xf0	/* Output select */
667 		/*	0x00	GPIO bit0 is output
668 			0x10	media-bay power
669 			0x20	reserved
670 			0x30	MPIC */
671 
672 #define GPIO_ALTOE	0x08	/* Alternate output enable */
673 		/*	0x00	Use DDR
674 			0x08	Use output select */
675 
676 #define GPIO_DDR	0x04	/* Data direction */
677 #define GPIO_DDR_OUTPUT	0x04	/* Output */
678 #define GPIO_DDR_INPUT	0x00	/* Input */
679 
680 #define GPIO_LEVEL	0x02	/* Pin level (RO) */
681 
682 #define	GPIO_DATA	0x01	/* Data */
683 
684 static int
685 snapper_match(device_t parent, struct cfdata *match, void *aux)
686 {
687 	struct confargs *ca;
688 	int soundbus, soundchip, soundcodec;
689 	char compat[32];
690 
691 	ca = aux;
692 	if (strcmp(ca->ca_name, "i2s") != 0)
693 		return 0;
694 
695 	if ((soundbus = OF_child(ca->ca_node)) == 0 ||
696 	    (soundchip = OF_child(soundbus)) == 0)
697 		return 0;
698 
699 	bzero(compat, sizeof compat);
700 	OF_getprop(soundchip, "compatible", compat, sizeof compat);
701 
702 	if (strcmp(compat, "snapper") == 0)
703 		return 1;
704 
705 	if (strcmp(compat, "tumbler") == 0)
706 		return 1;
707 
708 	if (strcmp(compat, "AOAKeylargo") == 0)
709 		return 1;
710 
711 	if (strcmp(compat, "AOAK2") == 0)
712 		return 1;
713 
714 	if (OF_getprop(soundchip, "platform-tas-codec-ref",
715 	    &soundcodec, sizeof soundcodec) == sizeof soundcodec)
716 		return 1;
717 
718 	return 0;
719 }
720 
721 static void
722 snapper_attach(device_t parent, device_t self, void *aux)
723 {
724 	struct snapper_softc *sc;
725 	struct confargs *ca;
726 	int cirq, oirq, iirq, cirq_type, oirq_type, iirq_type;
727 	int soundbus, intr[6];
728 	char compat[32];
729 
730 	sc = device_private(self);
731 	sc->sc_dev = self;
732 
733 	ca = aux;
734 
735 	soundbus = OF_child(ca->ca_node);
736 	bzero(compat, sizeof compat);
737 	OF_getprop(OF_child(soundbus), "compatible", compat, sizeof compat);
738 
739 	if (strcmp(compat, "tumbler") == 0)
740 		sc->sc_mode = SNAPPER_IS_TAS3001;
741 
742 	if (sc->sc_mode == SNAPPER_IS_TAS3001) {
743 		if (auconv_create_encodings(tumbler_formats, TUMBLER_NFORMATS,
744 				&sc->sc_encodings) != 0) {
745 			aprint_normal("can't create encodings\n");
746 			return;
747 		}
748 	} else {
749 		if (auconv_create_encodings(snapper_formats, SNAPPER_NFORMATS,
750 				&sc->sc_encodings) != 0) {
751 			aprint_normal("can't create encodings\n");
752 			return;
753 		}
754 	}
755 
756 	sc->sc_odmacmd = dbdma_alloc((SNAPPER_MAXPAGES + 4) *
757 				     sizeof(struct dbdma_command));
758 	sc->sc_idmacmd = dbdma_alloc((SNAPPER_MAXPAGES + 4) *
759 				     sizeof(struct dbdma_command));
760 
761 	sc->sc_baseaddr = ca->ca_baseaddr;
762 	ca->ca_reg[0] += ca->ca_baseaddr;
763 	ca->ca_reg[2] += ca->ca_baseaddr;
764 	ca->ca_reg[4] += ca->ca_baseaddr;
765 
766 	sc->sc_node = ca->ca_node;
767 	sc->sc_tag = ca->ca_tag;
768 	bus_space_map(sc->sc_tag, ca->ca_reg[0], ca->ca_reg[1], 0, &sc->sc_bsh);
769 	bus_space_map(sc->sc_tag, ca->ca_reg[2], ca->ca_reg[3],
770 	    BUS_SPACE_MAP_LINEAR, &sc->sc_odmah);
771 	bus_space_map(sc->sc_tag, ca->ca_reg[4], ca->ca_reg[5],
772 	    BUS_SPACE_MAP_LINEAR, &sc->sc_idmah);
773 	sc->sc_odma = bus_space_vaddr(sc->sc_tag, sc->sc_odmah);
774 	sc->sc_idma = bus_space_vaddr(sc->sc_tag, sc->sc_idmah);
775 
776 	OF_getprop(soundbus, "interrupts", intr, sizeof intr);
777 	cirq = intr[0];
778 	oirq = intr[2];
779 	iirq = intr[4];
780 	cirq_type = intr[1] ? IST_LEVEL : IST_EDGE;
781 	oirq_type = intr[3] ? IST_LEVEL : IST_EDGE;
782 	iirq_type = intr[5] ? IST_LEVEL : IST_EDGE;
783 
784 	/* intr_establish(cirq, cirq_type, IPL_AUDIO, snapper_intr, sc); */
785 	intr_establish(oirq, oirq_type, IPL_AUDIO, snapper_intr, sc);
786 	intr_establish(iirq, iirq_type, IPL_AUDIO, snapper_intr, sc);
787 
788 	aprint_normal(": irq %d,%d,%d\n", cirq, oirq, iirq);
789 
790 	/* PMF event handler */
791 	pmf_event_register(self, PMFE_AUDIO_VOLUME_DOWN,
792 	    snapper_volume_down, TRUE);
793 	pmf_event_register(self, PMFE_AUDIO_VOLUME_UP,
794 	    snapper_volume_up, TRUE);
795 	config_defer(self, snapper_defer);
796 }
797 
798 static void
799 snapper_defer(device_t dev)
800 {
801 	struct snapper_softc *sc;
802 	device_t dv;
803 	struct deq_softc *deq;
804 
805 	sc = device_private(dev);
806 	TAILQ_FOREACH(dv, &alldevs, dv_list) {
807 		if (device_is_a(dv, "deq")) {
808 			deq = device_private(dv);
809 			sc->sc_i2c = deq->sc_i2c;
810 			sc->sc_deqaddr = deq->sc_address;
811 		}
812 	}
813 
814 	/* If we don't find a codec, it's not the end of the world;
815 	 * we can control the volume in software in this case.
816 	 */
817 	if (sc->sc_i2c == NULL)
818 		sc->sc_mode = SNAPPER_SWVOL;
819 
820 	switch (sc->sc_mode) {
821 	case SNAPPER_SWVOL:
822 		aprint_verbose("%s: software codec\n", device_xname(dev));
823 		break;
824 	case SNAPPER_IS_TAS3001:
825 		aprint_verbose("%s: codec: TAS3001\n", device_xname(dev));
826 		break;
827 	case 0:
828 		aprint_verbose("%s: codec: TAS3004\n", device_xname(dev));
829 		break;
830 	}
831 
832 	audio_attach_mi(&snapper_hw_if, sc, sc->sc_dev);
833 
834 	/* ki2c_setmode(sc->sc_i2c, I2C_STDSUBMODE); */
835 	snapper_init(sc, sc->sc_node);
836 }
837 
838 static int
839 snapper_intr(void *v)
840 {
841 	struct snapper_softc *sc;
842 	struct dbdma_command *cmd;
843 	int count;
844 	int status;
845 
846 	sc = v;
847 	cmd = sc->sc_odmacmd;
848 	count = sc->sc_opages;
849 	/* Fill used buffer(s). */
850 	while (count-- > 0) {
851 		if ((in16rb(&cmd->d_command) & 0x30) == 0x30) {
852 			status = in16rb(&cmd->d_status);
853 			cmd->d_status = 0;
854 			if (status)	/* status == 0x8400 */
855 				if (sc->sc_ointr)
856 					(*sc->sc_ointr)(sc->sc_oarg);
857 		}
858 		cmd++;
859 	}
860 
861 	cmd = sc->sc_idmacmd;
862 	count = sc->sc_ipages;
863 	while (count-- > 0) {
864 		if ((in16rb(&cmd->d_command) & 0x30) == 0x30) {
865 			status = in16rb(&cmd->d_status);
866 			cmd->d_status = 0;
867 			if (status)	/* status == 0x8400 */
868 				if (sc->sc_iintr)
869 					(*sc->sc_iintr)(sc->sc_iarg);
870 		}
871 		cmd++;
872 	}
873 
874 
875 	return 1;
876 }
877 
878 
879 static int
880 snapper_query_encoding(void *h, struct audio_encoding *ae)
881 {
882 
883 	struct snapper_softc *sc = h;
884 
885 	return auconv_query_encoding(sc->sc_encodings, ae);
886 }
887 
888 static int
889 snapper_set_params(void *h, int setmode, int usemode,
890 		   audio_params_t *play, audio_params_t *rec,
891 		   stream_filter_list_t *pfil, stream_filter_list_t *rfil)
892 {
893 	struct snapper_softc *sc;
894 	audio_params_t *p;
895 	stream_filter_list_t *fil = NULL; /* XXX gcc */
896 	int mode;
897 
898 	sc = h;
899 	p = NULL;
900 
901 	/*
902 	 * This device only has one clock, so make the sample rates match.
903 	 */
904 	if (play->sample_rate != rec->sample_rate &&
905 	    usemode == (AUMODE_PLAY | AUMODE_RECORD)) {
906 		if (setmode == AUMODE_PLAY) {
907 			rec->sample_rate = play->sample_rate;
908 			setmode |= AUMODE_RECORD;
909 		} else if (setmode == AUMODE_RECORD) {
910 			play->sample_rate = rec->sample_rate;
911 			setmode |= AUMODE_PLAY;
912 		} else
913 			return EINVAL;
914 	}
915 
916 	for (mode = AUMODE_RECORD; mode != -1;
917 	     mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) {
918 		if ((setmode & mode) == 0)
919 			continue;
920 
921 		p = mode == AUMODE_PLAY ? play : rec;
922 		fil = mode == AUMODE_PLAY ? pfil : rfil;
923 		if (sc->sc_mode == SNAPPER_IS_TAS3001) {
924 			if (auconv_set_converter(tumbler_formats,
925 				    TUMBLER_NFORMATS, mode, p, true, fil) < 0) {
926 				DPRINTF("snapper_set_params: "
927 					"auconv_set_converter failed\n");
928 				return EINVAL;
929 			}
930 		} else {	/* TAS 3004 */
931 			if (auconv_set_converter(snapper_formats,
932 				    SNAPPER_NFORMATS, mode, p, true, fil) < 0) {
933 				DPRINTF("snapper_set_params: "
934 					"auconv_set_converter failed\n");
935 				return EINVAL;
936 			}
937 		}
938 
939 		if (fil->req_size > 0)
940 			p = &fil->filters[0].param;
941 		if (p->precision == 16) {
942 			if (sc->sc_mode == SNAPPER_SWVOL)
943 				fil->prepend(fil, snapper_volume, p);
944 			else if (sc->sc_mode == 0 && p->channels == 2) {
945 				/*
946 				 * Fix phase problems on TAS3004.
947 				 * This filter must go last on the chain,
948 				 * so prepend it, not append it.
949 				 */
950 				fil->prepend(fil, snapper_fixphase, p);
951 			}
952 		}
953 	}
954 
955 	/* Set the speed. p points HW encoding. */
956 	if (p) {
957 		sc->sc_rate = p->sample_rate;
958 		sc->sc_bitspersample = p->precision;
959 	}
960 	return 0;
961 }
962 
963 static int
964 snapper_round_blocksize(void *h, int size, int mode,
965 			const audio_params_t *param)
966 {
967 
968 	if (size < NBPG)
969 		size = NBPG;
970 	return size & ~PGOFSET;
971 }
972 
973 static int
974 snapper_halt_output(void *h)
975 {
976 	struct snapper_softc *sc;
977 
978 	sc = h;
979 	dbdma_stop(sc->sc_odma);
980 	dbdma_reset(sc->sc_odma);
981 	sc->sc_ointr = NULL;
982 	return 0;
983 }
984 
985 static int
986 snapper_halt_input(void *h)
987 {
988 	struct snapper_softc *sc;
989 
990 	sc = h;
991 	dbdma_stop(sc->sc_idma);
992 	dbdma_reset(sc->sc_idma);
993 	sc->sc_iintr = NULL;
994 	return 0;
995 }
996 
997 static int
998 snapper_getdev(void *h, struct audio_device *retp)
999 {
1000 
1001 	*retp = snapper_device;
1002 	return 0;
1003 }
1004 
1005 enum {
1006 	SNAPPER_MONITOR_CLASS,
1007 	SNAPPER_OUTPUT_CLASS,
1008 	SNAPPER_RECORD_CLASS,
1009 	SNAPPER_OUTPUT_SELECT,
1010 	SNAPPER_VOL_OUTPUT,
1011 	SNAPPER_DIGI1,
1012 	SNAPPER_DIGI2,
1013 	SNAPPER_VOL_INPUT,
1014 	SNAPPER_TREBLE,
1015 	SNAPPER_BASS,
1016 	/* From this point, unsupported by the TAS 3001 */
1017 	SNAPPER_ANALOG,
1018 	SNAPPER_INPUT_SELECT,
1019 	SNAPPER_ENUM_LAST
1020 };
1021 
1022 static int
1023 snapper_set_port(void *h, mixer_ctrl_t *mc)
1024 {
1025 	struct snapper_softc *sc;
1026 	int l, r;
1027 	u_char data;
1028 
1029 	DPRINTF("snapper_set_port dev = %d, type = %d\n", mc->dev, mc->type);
1030 	sc = h;
1031 	l = mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT];
1032 	r = mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
1033 
1034 	switch (mc->dev) {
1035 	case SNAPPER_OUTPUT_SELECT:
1036 		/* No change necessary? */
1037 		if (mc->un.mask == sc->sc_output_mask)
1038 			return 0;
1039 
1040 		snapper_mute_speaker(sc, 1);
1041 		snapper_mute_headphone(sc, 1);
1042 		if (mc->un.mask & 1 << 0)
1043 			snapper_mute_speaker(sc, 0);
1044 		if (mc->un.mask & 1 << 1)
1045 			snapper_mute_headphone(sc, 0);
1046 
1047 		sc->sc_output_mask = mc->un.mask;
1048 		return 0;
1049 
1050 	case SNAPPER_VOL_OUTPUT:
1051 		snapper_set_volume(sc, l, r);
1052 		return 0;
1053 
1054 	case SNAPPER_INPUT_SELECT:
1055 		if (sc->sc_mode != 0)
1056 			return ENXIO;
1057 
1058 		/* no change necessary? */
1059 		if (mc->un.mask == sc->sc_record_source)
1060 			return 0;
1061 		switch (mc->un.mask) {
1062 		case 1 << 0: /* microphone */
1063 			/* Select right channel of B input */
1064 			data = DEQ_ACR_ADM | DEQ_ACR_LRB | DEQ_ACR_INP_B;
1065 			tas3004_write(sc, DEQ_ACR, &data);
1066 			break;
1067 		case 1 << 1: /* line in */
1068 			/* Select both channels of A input */
1069 			data = 0;
1070 			tas3004_write(sc, DEQ_ACR, &data);
1071 			break;
1072 		default: /* invalid argument */
1073 			return EINVAL;
1074 		}
1075 		sc->sc_record_source = mc->un.mask;
1076 		return 0;
1077 
1078 	case SNAPPER_VOL_INPUT:
1079 		/* XXX TO BE DONE */
1080 		return 0;
1081 
1082 	case SNAPPER_BASS:
1083 		if (sc->sc_mode == SNAPPER_SWVOL)
1084 			return ENXIO;
1085 		snapper_set_bass(sc, l);
1086 		return 0;
1087 	case SNAPPER_TREBLE:
1088 		if (sc->sc_mode == SNAPPER_SWVOL)
1089 			return ENXIO;
1090 		snapper_set_treble(sc, l);
1091 		return 0;
1092 	case SNAPPER_DIGI1:
1093 		if (sc->sc_mode == SNAPPER_SWVOL)
1094 			return ENXIO;
1095 
1096 		sc->mixer[0] = l;
1097 		sc->mixer[3] = r;
1098 		snapper_write_mixers(sc);
1099 		return 0;
1100 	case SNAPPER_DIGI2:
1101 		if (sc->sc_mode == SNAPPER_SWVOL)
1102 			return ENXIO;
1103 
1104 		if (sc->sc_mode == SNAPPER_IS_TAS3001)
1105 			sc->mixer[3] = l;
1106 		else {
1107 			sc->mixer[1] = l;
1108 			sc->mixer[4] = r;
1109 		}
1110 		snapper_write_mixers(sc);
1111 		return 0;
1112 	case SNAPPER_ANALOG:
1113 		if (sc->sc_mode != 0)
1114 			return ENXIO;
1115 
1116 		sc->mixer[2] = l;
1117 		sc->mixer[5] = r;
1118 		snapper_write_mixers(sc);
1119 		return 0;
1120 	}
1121 	return ENXIO;
1122 }
1123 
1124 static int
1125 snapper_get_port(void *h, mixer_ctrl_t *mc)
1126 {
1127 	struct snapper_softc *sc;
1128 
1129 	DPRINTF("snapper_get_port dev = %d, type = %d\n", mc->dev, mc->type);
1130 	sc = h;
1131 	switch (mc->dev) {
1132 	case SNAPPER_OUTPUT_SELECT:
1133 		mc->un.mask = sc->sc_output_mask;
1134 		return 0;
1135 
1136 	case SNAPPER_VOL_OUTPUT:
1137 		mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = sc->sc_vol_l;
1138 		mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = sc->sc_vol_r;
1139 		return 0;
1140 
1141 	case SNAPPER_INPUT_SELECT:
1142 		if (sc->sc_mode != 0)
1143 			return ENXIO;
1144 
1145 		mc->un.mask = sc->sc_record_source;
1146 		return 0;
1147 
1148 	case SNAPPER_VOL_INPUT:
1149 		/* XXX TO BE DONE */
1150 		mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = 0;
1151 		mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = 0;
1152 		return 0;
1153 
1154 	case SNAPPER_TREBLE:
1155 		if (sc->sc_mode == SNAPPER_SWVOL)
1156 			return ENXIO;
1157 		mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_treble;
1158 		return 0;
1159 	case SNAPPER_BASS:
1160 		if (sc->sc_mode == SNAPPER_SWVOL)
1161 			return ENXIO;
1162 		mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_bass;
1163 		return 0;
1164 
1165 	case SNAPPER_DIGI1:
1166 		if (sc->sc_mode == SNAPPER_SWVOL)
1167 			return ENXIO;
1168 
1169 		mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = sc->mixer[0];
1170 		mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = sc->mixer[3];
1171 		return 0;
1172 	case SNAPPER_DIGI2:
1173 		if (sc->sc_mode == SNAPPER_SWVOL)
1174 			return ENXIO;
1175 
1176 		mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = sc->mixer[1];
1177 		mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = sc->mixer[4];
1178 		return 0;
1179 	case SNAPPER_ANALOG:
1180 		if (sc->sc_mode != 0)
1181 			return ENXIO;
1182 
1183 		mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = sc->mixer[2];
1184 		mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = sc->mixer[5];
1185 		return 0;
1186 	default:
1187 		return ENXIO;
1188 	}
1189 
1190 	return 0;
1191 }
1192 
1193 static int
1194 snapper_query_devinfo(void *h, mixer_devinfo_t *dip)
1195 {
1196 	struct snapper_softc *sc = h;
1197 
1198 	switch (dip->index) {
1199 
1200 	case SNAPPER_OUTPUT_SELECT:
1201 		dip->mixer_class = SNAPPER_MONITOR_CLASS;
1202 		strcpy(dip->label.name, AudioNoutput);
1203 		dip->type = AUDIO_MIXER_SET;
1204 		dip->prev = dip->next = AUDIO_MIXER_LAST;
1205 		dip->un.s.num_mem = 2;
1206 		strcpy(dip->un.s.member[0].label.name, AudioNspeaker);
1207 		dip->un.s.member[0].mask = 1 << 0;
1208 		strcpy(dip->un.s.member[1].label.name, AudioNheadphone);
1209 		dip->un.s.member[1].mask = 1 << 1;
1210 		return 0;
1211 
1212 	case SNAPPER_VOL_OUTPUT:
1213 		dip->mixer_class = SNAPPER_MONITOR_CLASS;
1214 		strcpy(dip->label.name, AudioNmaster);
1215 		dip->type = AUDIO_MIXER_VALUE;
1216 		dip->prev = dip->next = AUDIO_MIXER_LAST;
1217 		dip->un.v.num_channels = 2;
1218 		strcpy(dip->un.v.units.name, AudioNvolume);
1219 		return 0;
1220 
1221 	case SNAPPER_INPUT_SELECT:
1222 		if (sc->sc_mode != 0)
1223 			return ENXIO;
1224 
1225 		dip->mixer_class = SNAPPER_RECORD_CLASS;
1226 		strcpy(dip->label.name, AudioNsource);
1227 		dip->type = AUDIO_MIXER_SET;
1228 		dip->prev = dip->next = AUDIO_MIXER_LAST;
1229 		dip->un.s.num_mem = 2;
1230 		strcpy(dip->un.s.member[0].label.name, AudioNmicrophone);
1231 		dip->un.s.member[0].mask = 1 << 0;
1232 		strcpy(dip->un.s.member[1].label.name, AudioNline);
1233 		dip->un.s.member[1].mask = 1 << 1;
1234 		return 0;
1235 
1236 	case SNAPPER_VOL_INPUT:
1237 		dip->mixer_class = SNAPPER_RECORD_CLASS;
1238 		strcpy(dip->label.name, AudioNrecord);
1239 		dip->type = AUDIO_MIXER_VALUE;
1240 		dip->prev = dip->next = AUDIO_MIXER_LAST;
1241 		dip->un.v.num_channels = 2;
1242 		strcpy(dip->un.v.units.name, AudioNvolume);
1243 		return 0;
1244 
1245 	case SNAPPER_MONITOR_CLASS:
1246 		dip->mixer_class = SNAPPER_MONITOR_CLASS;
1247 		strcpy(dip->label.name, AudioCmonitor);
1248 		dip->type = AUDIO_MIXER_CLASS;
1249 		dip->next = dip->prev = AUDIO_MIXER_LAST;
1250 		return 0;
1251 
1252 	case SNAPPER_OUTPUT_CLASS:
1253 		dip->mixer_class = SNAPPER_OUTPUT_CLASS;
1254 		strcpy(dip->label.name, AudioCoutputs);
1255 		dip->type = AUDIO_MIXER_CLASS;
1256 		dip->next = dip->prev = AUDIO_MIXER_LAST;
1257 		return 0;
1258 
1259 	case SNAPPER_RECORD_CLASS:
1260 		dip->mixer_class = SNAPPER_RECORD_CLASS;
1261 		strcpy(dip->label.name, AudioCrecord);
1262 		dip->type = AUDIO_MIXER_CLASS;
1263 		dip->next = dip->prev = AUDIO_MIXER_LAST;
1264 		return 0;
1265 
1266 	case SNAPPER_TREBLE:
1267 		if (sc->sc_mode == SNAPPER_SWVOL)
1268 			return ENXIO;
1269 
1270 		dip->mixer_class = SNAPPER_MONITOR_CLASS;
1271 		strcpy(dip->label.name, AudioNtreble);
1272 		dip->type = AUDIO_MIXER_VALUE;
1273 		dip->prev = dip->next = AUDIO_MIXER_LAST;
1274 		dip->un.v.num_channels = 1;
1275 		return 0;
1276 
1277 	case SNAPPER_BASS:
1278 		if (sc->sc_mode == SNAPPER_SWVOL)
1279 			return ENXIO;
1280 
1281 		dip->mixer_class = SNAPPER_MONITOR_CLASS;
1282 		strcpy(dip->label.name, AudioNbass);
1283 		dip->type = AUDIO_MIXER_VALUE;
1284 		dip->prev = dip->next = AUDIO_MIXER_LAST;
1285 		dip->un.v.num_channels = 1;
1286 		return 0;
1287 
1288 	case SNAPPER_DIGI1:
1289 		if (sc->sc_mode == SNAPPER_SWVOL)
1290 			return ENXIO;
1291 
1292 		dip->mixer_class = SNAPPER_MONITOR_CLASS;
1293 		strcpy(dip->label.name, AudioNdac);
1294 		dip->type = AUDIO_MIXER_VALUE;
1295 		dip->prev = dip->next = AUDIO_MIXER_LAST;
1296 		dip->un.v.num_channels =
1297 			sc->sc_mode == SNAPPER_IS_TAS3001? 1 : 2;
1298 		return 0;
1299 	case SNAPPER_DIGI2:
1300 		if (sc->sc_mode == SNAPPER_SWVOL)
1301 			return ENXIO;
1302 
1303 		dip->mixer_class = SNAPPER_MONITOR_CLASS;
1304 		strcpy(dip->label.name, AudioNline);
1305 		dip->type = AUDIO_MIXER_VALUE;
1306 		dip->prev = dip->next = AUDIO_MIXER_LAST;
1307 		dip->un.v.num_channels =
1308 			sc->sc_mode == SNAPPER_IS_TAS3001? 1 : 2;
1309 		return 0;
1310 	case SNAPPER_ANALOG:
1311 		if (sc->sc_mode != 0)
1312 			return ENXIO;
1313 
1314 		dip->mixer_class = SNAPPER_MONITOR_CLASS;
1315 		strcpy(dip->label.name, AudioNmicrophone);
1316 		dip->type = AUDIO_MIXER_VALUE;
1317 		dip->prev = dip->next = AUDIO_MIXER_LAST;
1318 		dip->un.v.num_channels = 2;
1319 		return 0;
1320 	}
1321 
1322 	return ENXIO;
1323 }
1324 
1325 static size_t
1326 snapper_round_buffersize(void *h, int dir, size_t size)
1327 {
1328 
1329 	if (size > 65536)
1330 		size = 65536;
1331 	return size;
1332 }
1333 
1334 static paddr_t
1335 snapper_mappage(void *h, void *mem, off_t off, int prot)
1336 {
1337 
1338 	if (off < 0)
1339 		return -1;
1340 	return -1;	/* XXX */
1341 }
1342 
1343 static int
1344 snapper_get_props(void *h)
1345 {
1346 	return AUDIO_PROP_FULLDUPLEX /* | AUDIO_PROP_MMAP */;
1347 }
1348 
1349 static int
1350 snapper_trigger_output(void *h, void *start, void *end, int bsize,
1351 		       void (*intr)(void *), void *arg,
1352 		       const audio_params_t *param)
1353 {
1354 	struct snapper_softc *sc;
1355 	struct dbdma_command *cmd;
1356 	vaddr_t va;
1357 	int i, len, intmode;
1358 	int res;
1359 
1360 	DPRINTF("trigger_output %p %p 0x%x\n", start, end, bsize);
1361 	sc = h;
1362 
1363 	if ((res = snapper_set_rate(sc)) != 0)
1364 		return res;
1365 
1366 	cmd = sc->sc_odmacmd;
1367 	sc->sc_ointr = intr;
1368 	sc->sc_oarg = arg;
1369 	sc->sc_opages = ((char *)end - (char *)start) / NBPG;
1370 
1371 #ifdef DIAGNOSTIC
1372 	if (sc->sc_opages > SNAPPER_MAXPAGES)
1373 		panic("snapper_trigger_output");
1374 #endif
1375 
1376 	va = (vaddr_t)start;
1377 	len = 0;
1378 	for (i = sc->sc_opages; i > 0; i--) {
1379 		len += NBPG;
1380 		if (len < bsize)
1381 			intmode = 0;
1382 		else {
1383 			len = 0;
1384 			intmode = DBDMA_INT_ALWAYS;
1385 		}
1386 
1387 		DBDMA_BUILD(cmd, DBDMA_CMD_OUT_MORE, 0, NBPG, vtophys(va),
1388 		    intmode, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
1389 		cmd++;
1390 		va += NBPG;
1391 	}
1392 
1393 	DBDMA_BUILD(cmd, DBDMA_CMD_NOP, 0, 0,
1394 	    0/*vtophys((vaddr_t)sc->sc_odmacmd)*/, 0, DBDMA_WAIT_NEVER,
1395 	    DBDMA_BRANCH_ALWAYS);
1396 
1397 	out32rb(&cmd->d_cmddep, vtophys((vaddr_t)sc->sc_odmacmd));
1398 
1399 	dbdma_start(sc->sc_odma, sc->sc_odmacmd);
1400 
1401 	return 0;
1402 }
1403 
1404 static int
1405 snapper_trigger_input(void *h, void *start, void *end, int bsize,
1406 		      void (*intr)(void *), void *arg,
1407 		      const audio_params_t *param)
1408 {
1409 	struct snapper_softc *sc;
1410 	struct dbdma_command *cmd;
1411 	vaddr_t va;
1412 	int i, len, intmode;
1413 	int res;
1414 
1415 	DPRINTF("trigger_input %p %p 0x%x\n", start, end, bsize);
1416 	sc = h;
1417 
1418 	if ((res = snapper_set_rate(sc)) != 0)
1419 		return res;
1420 
1421 	cmd = sc->sc_idmacmd;
1422 	sc->sc_iintr = intr;
1423 	sc->sc_iarg = arg;
1424 	sc->sc_ipages = ((char *)end - (char *)start) / NBPG;
1425 
1426 #ifdef DIAGNOSTIC
1427 	if (sc->sc_ipages > SNAPPER_MAXPAGES)
1428 		panic("snapper_trigger_input");
1429 #endif
1430 
1431 	va = (vaddr_t)start;
1432 	len = 0;
1433 	for (i = sc->sc_ipages; i > 0; i--) {
1434 		len += NBPG;
1435 		if (len < bsize)
1436 			intmode = 0;
1437 		else {
1438 			len = 0;
1439 			intmode = DBDMA_INT_ALWAYS;
1440 		}
1441 
1442 		DBDMA_BUILD(cmd, DBDMA_CMD_IN_MORE, 0, NBPG, vtophys(va),
1443 		    intmode, DBDMA_WAIT_NEVER, DBDMA_BRANCH_NEVER);
1444 		cmd++;
1445 		va += NBPG;
1446 	}
1447 
1448 	DBDMA_BUILD(cmd, DBDMA_CMD_NOP, 0, 0,
1449 	    0/*vtophys((vaddr_t)sc->sc_odmacmd)*/, 0, DBDMA_WAIT_NEVER,
1450 	    DBDMA_BRANCH_ALWAYS);
1451 
1452 	out32rb(&cmd->d_cmddep, vtophys((vaddr_t)sc->sc_idmacmd));
1453 
1454 	dbdma_start(sc->sc_idma, sc->sc_idmacmd);
1455 
1456 	return 0;
1457 }
1458 
1459 static void
1460 snapper_set_volume(struct snapper_softc *sc, u_int left, u_int right)
1461 {
1462 	u_char regs[6];
1463 	int l, r;
1464 
1465 	left = min(255, left);
1466 	right = min(255, right);
1467 
1468 	if (sc->sc_mode == SNAPPER_SWVOL) {
1469 		snapper_vol_l = left;
1470 		snapper_vol_r = right;
1471 	} else {
1472 		/*
1473 		 * for some insane reason the gain table for master volume and the
1474 		 * mixer channels is almost identical - just shifted by 4 bits
1475 		 * so we use the mixer_gain table and bit-twiddle it...
1476 		 */
1477 		l = 177 - (left * 178 / 256);
1478 		regs[0] =  (snapper_mixer_gain[l][0] >> 4);
1479 		regs[1] = ((snapper_mixer_gain[l][0] & 0x0f) << 4) |
1480 			   (snapper_mixer_gain[l][1] >> 4);
1481 		regs[2] = ((snapper_mixer_gain[l][1] & 0x0f) << 4) |
1482 			   (snapper_mixer_gain[l][2] >> 4);
1483 
1484 		r = 177 - (right * 178 / 256);
1485 		regs[3] =  (snapper_mixer_gain[r][0] >> 4);
1486 		regs[4] = ((snapper_mixer_gain[r][0] & 0x0f) << 4) |
1487 			   (snapper_mixer_gain[r][1] >> 4);
1488 		regs[5] = ((snapper_mixer_gain[r][1] & 0x0f) << 4) |
1489 			   (snapper_mixer_gain[r][2] >> 4);
1490 
1491 		tas3004_write(sc, DEQ_VOLUME, regs);
1492 
1493 		DPRINTF("%d %02x %02x %02x : %d %02x %02x %02x\n", l, regs[0],
1494 		    regs[1], regs[2], r, regs[3], regs[4], regs[5]);
1495 	}
1496 
1497 	sc->sc_vol_l = left;
1498 	sc->sc_vol_r = right;
1499 }
1500 
1501 static void
1502 snapper_set_basstreble(struct snapper_softc *sc, u_int val, u_int mode)
1503 {
1504 	int i = val & 0xFF;
1505 	uint8_t reg;
1506 
1507 	/*
1508 	 * Make 128 match the 0 dB point
1509 	 */
1510 	i = (i - (128 - (SNAPPER_BASSTAB_0DB << 2))) >> 2;
1511 	if (i < 0)
1512 		i = 0;
1513 	else if (i >= sizeof(snapper_basstab))
1514 		i = sizeof(snapper_basstab) - 1;
1515 	reg = snapper_basstab[i];
1516 
1517 	if (sc->sc_mode == SNAPPER_IS_TAS3001 &&
1518 	    mode == DEQ_BASS) {
1519 	    /*
1520 	     * XXX -- The TAS3001 bass table is different
1521 	     *        than the other tables.
1522 	     */
1523 	    reg = (reg >> 1) + 5; // map 0x72 -> 0x3E (0 dB)
1524 	}
1525 
1526 	tas3004_write(sc, mode, &reg);
1527 }
1528 
1529 static void
1530 snapper_set_treble(struct snapper_softc *sc, u_int val)
1531 {
1532 	if (sc->sc_treble != (u_char)val) {
1533 		sc->sc_treble = val;
1534 		snapper_set_basstreble(sc, val, DEQ_TREBLE);
1535 	}
1536 }
1537 
1538 static void
1539 snapper_set_bass(struct snapper_softc *sc, u_int val)
1540 {
1541 	if (sc->sc_bass != (u_char)val) {
1542 		sc->sc_bass = val;
1543 		snapper_set_basstreble(sc, val, DEQ_BASS);
1544 	}
1545 }
1546 
1547 
1548 /*
1549  * In the mixer gain setting, make 128 correspond to
1550  * the 0dB value from the table.
1551  * Note that the table values are complemented.
1552  */
1553 #define SNAPPER_MIXER_GAIN_SIZE	(sizeof(snapper_mixer_gain) / \
1554                                	 sizeof(snapper_mixer_gain[0]))
1555 #define NORMALIZE(i)	((~(i) & 0xff) - ((~128 & 0xff) - SNAPPER_MIXER_GAIN_0DB))
1556 #define ADJUST(v, i)	do { \
1557                 		(v) = NORMALIZE(i);\
1558 				if ((v) < 0) \
1559 					(v) = 0; \
1560 				else if ((v) >= SNAPPER_MIXER_GAIN_SIZE) \
1561 					(v) = SNAPPER_MIXER_GAIN_SIZE - 1; \
1562 				\
1563 			} while (0)
1564 static void
1565 snapper_write_mixers(struct snapper_softc *sc)
1566 {
1567 	uint8_t regs[9] = {0, 0, 0, 0, 0, 0, 0, 0, 0};
1568 	int i;
1569 
1570 	/* Left channel of SDIN1 */
1571 	ADJUST(i, sc->mixer[0]);
1572 	regs[0] = snapper_mixer_gain[i][0];
1573 	regs[1] = snapper_mixer_gain[i][1];
1574 	regs[2] = snapper_mixer_gain[i][2];
1575 
1576 	/* Left channel of SDIN2 */
1577 	ADJUST(i, sc->mixer[1]);
1578 	regs[3] = snapper_mixer_gain[i][0];
1579 	regs[4] = snapper_mixer_gain[i][1];
1580 	regs[5] = snapper_mixer_gain[i][2];
1581 
1582 	/* Left channel of analog input */
1583 	ADJUST(i, sc->mixer[2]);
1584 	regs[6] = snapper_mixer_gain[i][0];
1585 	regs[7] = snapper_mixer_gain[i][1];
1586 	regs[8] = snapper_mixer_gain[i][2];
1587 
1588 	tas3004_write(sc, DEQ_MIXER_L, regs);
1589 
1590 	/* Right channel of SDIN1 */
1591 	ADJUST(i, sc->mixer[3]);
1592 	regs[0] = snapper_mixer_gain[i][0];
1593 	regs[1] = snapper_mixer_gain[i][1];
1594 	regs[2] = snapper_mixer_gain[i][2];
1595 
1596 	/* Right channel of SDIN2 */
1597 	ADJUST(i, sc->mixer[4]);
1598 	regs[3] = snapper_mixer_gain[i][0];
1599 	regs[4] = snapper_mixer_gain[i][1];
1600 	regs[5] = snapper_mixer_gain[i][2];
1601 
1602 	/* Right channel of analog input */
1603 	ADJUST(i, sc->mixer[5]);
1604 	regs[6] = snapper_mixer_gain[i][0];
1605 	regs[7] = snapper_mixer_gain[i][1];
1606 	regs[8] = snapper_mixer_gain[i][2];
1607 
1608 	tas3004_write(sc, DEQ_MIXER_R, regs);
1609 }
1610 
1611 #define CLKSRC_49MHz	0x80000000	/* Use 49152000Hz Osc. */
1612 #define CLKSRC_45MHz	0x40000000	/* Use 45158400Hz Osc. */
1613 #define CLKSRC_18MHz	0x00000000	/* Use 18432000Hz Osc. */
1614 #define MCLK_DIV	0x1f000000	/* MCLK = SRC / DIV */
1615 #define  MCLK_DIV1	0x14000000	/*  MCLK = SRC */
1616 #define  MCLK_DIV3	0x13000000	/*  MCLK = SRC / 3 */
1617 #define  MCLK_DIV5	0x12000000	/*  MCLK = SRC / 5 */
1618 #define SCLK_DIV	0x00f00000	/* SCLK = MCLK / DIV */
1619 #define  SCLK_DIV1	0x00800000
1620 #define  SCLK_DIV3	0x00900000
1621 #define SCLK_MASTER	0x00080000	/* Master mode */
1622 #define SCLK_SLAVE	0x00000000	/* Slave mode */
1623 #define SERIAL_FORMAT	0x00070000
1624 #define  SERIAL_SONY	0x00000000
1625 #define  SERIAL_64x	0x00010000
1626 #define  SERIAL_32x	0x00020000
1627 #define  SERIAL_DAV	0x00040000
1628 #define  SERIAL_SILICON	0x00050000
1629 
1630 /*
1631  * rate = fs = LRCLK
1632  * SCLK = 64*LRCLK (I2S)
1633  * MCLK = 256fs (typ. -- changeable)
1634  *
1635  * MCLK = clksrc / mdiv
1636  * SCLK = MCLK / sdiv
1637  * rate = SCLK / 64    ( = LRCLK = fs)
1638  */
1639 
1640 int
1641 snapper_set_rate(struct snapper_softc *sc)
1642 {
1643 	u_int reg = 0, x;
1644 	u_int rate = sc->sc_rate;
1645 	uint32_t wordsize, ows;
1646 	int MCLK;
1647 	int clksrc, mdiv, sdiv;
1648 	int mclk_fs;
1649 	int timo;
1650 	uint8_t mcr1;
1651 
1652 	switch (rate) {
1653 	case 44100:
1654 		clksrc = 45158400;		/* 45MHz */
1655 		reg = CLKSRC_45MHz;
1656 		mclk_fs = 256;
1657 		break;
1658 
1659 	case 32000:
1660 	case 48000:
1661 	case 96000:
1662 		clksrc = 49152000;		/* 49MHz */
1663 		reg = CLKSRC_49MHz;
1664 		mclk_fs = 256;
1665 		break;
1666 
1667 	default:
1668 		DPRINTF("snapper_set_rate: invalid rate %u\n", rate);
1669 		return EINVAL;
1670 	}
1671 
1672 	MCLK = rate * mclk_fs;
1673 	mdiv = clksrc / MCLK;			/* 4 */
1674 	sdiv = mclk_fs / 64;			/* 4 */
1675 
1676 	switch (mdiv) {
1677 	case 1:
1678 		reg |= MCLK_DIV1;
1679 		break;
1680 	case 3:
1681 		reg |= MCLK_DIV3;
1682 		break;
1683 	case 5:
1684 		reg |= MCLK_DIV5;
1685 		break;
1686 	default:
1687 		reg |= ((mdiv / 2 - 1) << 24) & 0x1f000000;
1688 		break;
1689 	}
1690 
1691 	switch (sdiv) {
1692 	case 1:
1693 		reg |= SCLK_DIV1;
1694 		break;
1695 	case 3:
1696 		reg |= SCLK_DIV3;
1697 		break;
1698 	default:
1699 		reg |= ((sdiv / 2 - 1) << 20) & 0x00f00000;
1700 		break;
1701 	}
1702 
1703 	reg |= SCLK_MASTER;	/* XXX master mode */
1704 
1705 	reg |= SERIAL_64x;
1706 
1707 	/* stereo input and output */
1708 
1709 	DPRINTF("precision: %d\n", sc->sc_bitspersample);
1710 	switch(sc->sc_bitspersample) {
1711 		case 16:
1712 			wordsize = 0x02000200;
1713 			mcr1 = DEQ_MCR1_SC_64 | DEQ_MCR1_SM_I2S | DEQ_MCR1_W_16;
1714 			break;
1715 		case 24:
1716 			wordsize = 0x03000300;
1717 			mcr1 = DEQ_MCR1_SC_64 | DEQ_MCR1_SM_I2S | DEQ_MCR1_W_24;
1718 			break;
1719 		default:
1720 			printf("%s: unsupported sample size %d\n",
1721 			    device_xname(sc->sc_dev), sc->sc_bitspersample);
1722 			return EINVAL;
1723 	}
1724 
1725 	if (sc->sc_mode == SNAPPER_IS_TAS3001)
1726 		mcr1 |= DEQ_MCR1_ISM_I2S;
1727 
1728 	ows = bus_space_read_4(sc->sc_tag, sc->sc_bsh, I2S_WORDSIZE);
1729 
1730 	DPRINTF("I2SSetDataWordSizeReg 0x%08x -> 0x%08x\n",
1731 	    ows, wordsize);
1732 	if (ows != wordsize) {
1733 		bus_space_write_4(sc->sc_tag, sc->sc_bsh, I2S_WORDSIZE,
1734 		    wordsize);
1735 		if (sc->sc_mode != SNAPPER_SWVOL)
1736 			tas3004_write(sc, DEQ_MCR1, &mcr1);
1737 	}
1738 
1739 	x = bus_space_read_4(sc->sc_tag, sc->sc_bsh, I2S_FORMAT);
1740 	if (x == reg)
1741 		return 0;        /* No change; do nothing. */
1742 
1743 	DPRINTF("I2SSetSerialFormatReg 0x%x -> 0x%x\n",
1744 	    bus_space_read_4(sc->sc_tag, sc->sc_bsh, + I2S_FORMAT), reg);
1745 
1746 	/* Clear CLKSTOPPEND. */
1747 	bus_space_write_4(sc->sc_tag, sc->sc_bsh, I2S_INT, I2S_INT_CLKSTOPPEND);
1748 
1749 	x = obio_read_4(KEYLARGO_FCR1);                /* FCR */
1750 	x &= ~I2S0CLKEN;                /* XXX I2S0 */
1751 	obio_write_4(KEYLARGO_FCR1, x);
1752 
1753 	/* Wait until clock is stopped. */
1754 	for (timo = 1000; timo > 0; timo--) {
1755 		if (bus_space_read_4(sc->sc_tag, sc->sc_bsh, I2S_INT) &
1756 		    I2S_INT_CLKSTOPPEND)
1757 			goto done;
1758 		delay(1);
1759 	}
1760 	DPRINTF("snapper_set_rate: timeout\n");
1761 done:
1762 	bus_space_write_4(sc->sc_tag, sc->sc_bsh, I2S_FORMAT, reg);
1763 
1764 	x = obio_read_4(KEYLARGO_FCR1);
1765 	x |= I2S0CLKEN;
1766 	obio_write_4(KEYLARGO_FCR1, x);
1767 
1768 	return 0;
1769 }
1770 
1771 const struct tas3004_reg tas3004_initdata = {
1772 	{ DEQ_MCR1_SC_64 | DEQ_MCR1_SM_I2S | DEQ_MCR1_W_16 },	/* MCR1 */
1773 	{ 1, 0, 0, 0, 0, 0 },					/* DRC */
1774 	{ 0, 0, 0, 0, 0, 0 },					/* VOLUME */
1775 	{ 0x72 },						/* TREBLE */
1776 	{ 0x72 },						/* BASS */
1777 	{ 0x10, 0x00, 0x00, 0, 0, 0, 0, 0, 0 },			/* MIXER_L */
1778 	{ 0x10, 0x00, 0x00, 0, 0, 0, 0, 0, 0 },			/* MIXER_R */
1779 	{ 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },	/* BIQUAD */
1780 	{ 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },	/* BIQUAD */
1781 	{ 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },	/* BIQUAD */
1782 	{ 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },	/* BIQUAD */
1783 	{ 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },	/* BIQUAD */
1784 	{ 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },	/* BIQUAD */
1785 	{ 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },	/* BIQUAD */
1786 	{ 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },	/* BIQUAD */
1787 	{ 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },	/* BIQUAD */
1788 	{ 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },	/* BIQUAD */
1789 	{ 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },	/* BIQUAD */
1790 	{ 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },	/* BIQUAD */
1791 	{ 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },	/* BIQUAD */
1792 	{ 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },	/* BIQUAD */
1793 	{ 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },	/* BIQUAD */
1794 	{ 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },	/* BIQUAD */
1795 	{ 0, 0, 0 },						/* LLB_GAIN */
1796 	{ 0, 0, 0 },						/* RLB_GAIN */
1797 	{ DEQ_ACR_ADM | DEQ_ACR_LRB | DEQ_ACR_INP_B },		/* ACR - right channel of input B is the microphone */
1798 	{ 2 }							/* MCR2 - AllPass mode since we don't use the equalizer anyway */
1799 };
1800 
1801 const char tas3004_regsize[] = {
1802 	0,					/* 0x00 */
1803 	sizeof tas3004_initdata.MCR1,		/* 0x01 */
1804 	sizeof tas3004_initdata.DRC,		/* 0x02 */
1805 	0,					/* 0x03 */
1806 	sizeof tas3004_initdata.VOLUME,		/* 0x04 */
1807 	sizeof tas3004_initdata.TREBLE,		/* 0x05 */
1808 	sizeof tas3004_initdata.BASS,		/* 0x06 */
1809 	sizeof tas3004_initdata.MIXER_L,	/* 0x07 */
1810 	sizeof tas3004_initdata.MIXER_R,	/* 0x08 */
1811 	0,					/* 0x09 */
1812 	sizeof tas3004_initdata.LB0,		/* 0x0a */
1813 	sizeof tas3004_initdata.LB1,		/* 0x0b */
1814 	sizeof tas3004_initdata.LB2,		/* 0x0c */
1815 	sizeof tas3004_initdata.LB3,		/* 0x0d */
1816 	sizeof tas3004_initdata.LB4,		/* 0x0e */
1817 	sizeof tas3004_initdata.LB5,		/* 0x0f */
1818 	sizeof tas3004_initdata.LB6,		/* 0x10 */
1819 	0,					/* 0x11 */
1820 	0,					/* 0x12 */
1821 	sizeof tas3004_initdata.RB0,		/* 0x13 */
1822 	sizeof tas3004_initdata.RB1,		/* 0x14 */
1823 	sizeof tas3004_initdata.RB2,		/* 0x15 */
1824 	sizeof tas3004_initdata.RB3,		/* 0x16 */
1825 	sizeof tas3004_initdata.RB4,		/* 0x17 */
1826 	sizeof tas3004_initdata.RB5,		/* 0x18 */
1827 	sizeof tas3004_initdata.RB6,		/* 0x19 */
1828 	0,0,0,0, 0,0,
1829 	0,					/* 0x20 */
1830 	sizeof tas3004_initdata.LLB,		/* 0x21 */
1831 	sizeof tas3004_initdata.RLB,		/* 0x22 */
1832 	sizeof tas3004_initdata.LLB_GAIN,	/* 0x23 */
1833 	sizeof tas3004_initdata.RLB_GAIN,	/* 0x24 */
1834 	0,0,0,0, 0,0,0,0, 0,0,0,
1835 	0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0,
1836 	sizeof tas3004_initdata.ACR,		/* 0x40 */
1837 	0,					/* 0x41 */
1838 	0,					/* 0x42 */
1839 	sizeof tas3004_initdata.MCR2		/* 0x43 */
1840 };
1841 
1842 static int
1843 tas3004_write(struct snapper_softc *sc, u_int reg, const void *data)
1844 {
1845 	int size;
1846 	static char regblock[sizeof(struct tas3004_reg)+1];
1847 
1848 	if (sc->sc_i2c == NULL)
1849 		return 0;
1850 
1851 	KASSERT(reg < sizeof tas3004_regsize);
1852 	size = tas3004_regsize[reg];
1853 	KASSERT(size > 0);
1854 
1855 	DPRINTF("reg: %x, %d %d\n", reg, size, ((const char*)data)[0]);
1856 
1857 	regblock[0] = reg;
1858 	memcpy(&regblock[1], data, size);
1859 	if (sc->sc_mode == SNAPPER_IS_TAS3001) {
1860 		if (reg == DEQ_MIXER_L || reg == DEQ_MIXER_R)
1861 			size = 3;
1862 		else if (reg == DEQ_DRC || reg == DEQ_ACR ||
1863 			 reg == DEQ_MCR2) {
1864 			/* these registers are not available on TAS3001 */
1865 			return 0;
1866 		}
1867 	}
1868 	iic_acquire_bus(sc->sc_i2c, 0);
1869 	iic_exec(sc->sc_i2c, I2C_OP_WRITE, sc->sc_deqaddr, regblock, size + 1,
1870 	    NULL, 0, 0);
1871 	iic_release_bus(sc->sc_i2c, 0);
1872 
1873 	return 0;
1874 }
1875 
1876 static int
1877 gpio_read(char *addr)
1878 {
1879 
1880 	if (*addr & GPIO_DATA)
1881 		return 1;
1882 	return 0;
1883 }
1884 
1885 static void
1886 gpio_write(char *addr, int val)
1887 {
1888 	u_int data;
1889 
1890 	data = GPIO_DDR_OUTPUT;
1891 	if (val)
1892 		data |= GPIO_DATA;
1893 	*addr = data;
1894 	__asm volatile ("eieio");
1895 }
1896 
1897 #define headphone_active 0	/* XXX OF */
1898 #define amp_active 0		/* XXX OF */
1899 
1900 static void
1901 snapper_mute_speaker(struct snapper_softc *sc, int mute)
1902 {
1903 	u_int x;
1904 
1905 	DPRINTF("ampmute %d --> ", gpio_read(amp_mute));
1906 
1907 	if (mute)
1908 		x = amp_active;		/* mute */
1909 	else
1910 		x = !amp_active;	/* unmute */
1911 	if (x != gpio_read(amp_mute))
1912 		gpio_write(amp_mute, x);
1913 
1914 	DPRINTF("%d\n", gpio_read(amp_mute));
1915 }
1916 
1917 static void
1918 snapper_mute_headphone(struct snapper_softc *sc, int mute)
1919 {
1920 	u_int x;
1921 
1922 	DPRINTF("headphonemute %d --> ", gpio_read(headphone_mute));
1923 
1924 	if (mute)
1925 		x = headphone_active;	/* mute */
1926 	else
1927 		x = !headphone_active;	/* unmute */
1928 	if (x != gpio_read(headphone_mute))
1929 		gpio_write(headphone_mute, x);
1930 
1931 	DPRINTF("%d\n", gpio_read(headphone_mute));
1932 }
1933 
1934 static int
1935 snapper_cint(void *v)
1936 {
1937 	struct snapper_softc *sc;
1938 	u_int sense;
1939 
1940 	sc = v;
1941 	sense = *headphone_detect;
1942 	DPRINTF("headphone detect = 0x%x\n", sense);
1943 
1944 	if (((sense & 0x02) >> 1) == headphone_detect_active) {
1945 		DPRINTF("headphone is inserted\n");
1946 		snapper_mute_speaker(sc, 1);
1947 		snapper_mute_headphone(sc, 0);
1948 		sc->sc_output_mask = 1 << 1;
1949 	} else {
1950 		DPRINTF("headphone is NOT inserted\n");
1951 		snapper_mute_speaker(sc, 0);
1952 		snapper_mute_headphone(sc, 1);
1953 		sc->sc_output_mask = 1 << 0;
1954 	}
1955 
1956 	return 1;
1957 }
1958 
1959 #define reset_active 0	/* XXX OF */
1960 
1961 #define DEQ_WRITE(sc, reg, addr) \
1962 	if (tas3004_write(sc, reg, addr)) goto err
1963 
1964 static int
1965 tas3004_init(struct snapper_softc *sc)
1966 {
1967 
1968 	/* No reset port.  Nothing to do. */
1969 	if (audio_hw_reset == NULL)
1970 		goto noreset;
1971 
1972 	/* Reset TAS3004. */
1973 	gpio_write(audio_hw_reset, !reset_active);	/* Negate RESET */
1974 	delay(100000);				/* XXX Really needed? */
1975 
1976 	gpio_write(audio_hw_reset, reset_active);	/* Assert RESET */
1977 	delay(1);
1978 
1979 	gpio_write(audio_hw_reset, !reset_active);	/* Negate RESET */
1980 	delay(10000);
1981 
1982 noreset:
1983 	DEQ_WRITE(sc, DEQ_LB0, tas3004_initdata.LB0);
1984 	DEQ_WRITE(sc, DEQ_LB1, tas3004_initdata.LB1);
1985 	DEQ_WRITE(sc, DEQ_LB2, tas3004_initdata.LB2);
1986 	DEQ_WRITE(sc, DEQ_LB3, tas3004_initdata.LB3);
1987 	DEQ_WRITE(sc, DEQ_LB4, tas3004_initdata.LB4);
1988 	DEQ_WRITE(sc, DEQ_LB5, tas3004_initdata.LB5);
1989 	DEQ_WRITE(sc, DEQ_LB6, tas3004_initdata.LB6);
1990 	DEQ_WRITE(sc, DEQ_RB0, tas3004_initdata.RB0);
1991 	DEQ_WRITE(sc, DEQ_RB1, tas3004_initdata.RB1);
1992 	DEQ_WRITE(sc, DEQ_RB1, tas3004_initdata.RB1);
1993 	DEQ_WRITE(sc, DEQ_RB2, tas3004_initdata.RB2);
1994 	DEQ_WRITE(sc, DEQ_RB3, tas3004_initdata.RB3);
1995 	DEQ_WRITE(sc, DEQ_RB4, tas3004_initdata.RB4);
1996 	DEQ_WRITE(sc, DEQ_RB5, tas3004_initdata.RB5);
1997 	DEQ_WRITE(sc, DEQ_MCR1, tas3004_initdata.MCR1);
1998 	DEQ_WRITE(sc, DEQ_MCR2, tas3004_initdata.MCR2);
1999 	DEQ_WRITE(sc, DEQ_DRC, tas3004_initdata.DRC);
2000 	DEQ_WRITE(sc, DEQ_VOLUME, tas3004_initdata.VOLUME);
2001 	DEQ_WRITE(sc, DEQ_TREBLE, tas3004_initdata.TREBLE);
2002 	DEQ_WRITE(sc, DEQ_BASS, tas3004_initdata.BASS);
2003 	DEQ_WRITE(sc, DEQ_MIXER_L, tas3004_initdata.MIXER_L);
2004 	DEQ_WRITE(sc, DEQ_MIXER_R, tas3004_initdata.MIXER_R);
2005 	DEQ_WRITE(sc, DEQ_LLB, tas3004_initdata.LLB);
2006 	DEQ_WRITE(sc, DEQ_RLB, tas3004_initdata.RLB);
2007 	DEQ_WRITE(sc, DEQ_LLB_GAIN, tas3004_initdata.LLB_GAIN);
2008 	DEQ_WRITE(sc, DEQ_RLB_GAIN, tas3004_initdata.RLB_GAIN);
2009 	DEQ_WRITE(sc, DEQ_ACR, tas3004_initdata.ACR);
2010 
2011 	return 0;
2012 err:
2013 	printf("tas3004_init: error\n");
2014 	return -1;
2015 }
2016 
2017 static void
2018 snapper_init(struct snapper_softc *sc, int node)
2019 {
2020 	int gpio;
2021 	int headphone_detect_intr, headphone_detect_intrtype;
2022 #ifdef SNAPPER_DEBUG
2023 	char fcr[32];
2024 
2025 	snprintb(fcr, sizeof(fcr),  FCR3C_BITMASK, obio_read_4(KEYLARGO_FCR1));
2026 	printf("FCR(0x3c) 0x%s\n", fcr);
2027 #endif
2028 	headphone_detect_intr = -1;
2029 
2030 	gpio = of_getnode_byname(OF_parent(node), "gpio");
2031 	DPRINTF(" /gpio 0x%x\n", gpio);
2032 	gpio = OF_child(gpio);
2033 	while (gpio) {
2034 		char name[64], audio_gpio[64];
2035 		int intr[2];
2036 		char *addr;
2037 
2038 		bzero(name, sizeof name);
2039 		bzero(audio_gpio, sizeof audio_gpio);
2040 		addr = 0;
2041 		OF_getprop(gpio, "name", name, sizeof name);
2042 		OF_getprop(gpio, "audio-gpio", audio_gpio, sizeof audio_gpio);
2043 		OF_getprop(gpio, "AAPL,address", &addr, sizeof addr);
2044 		DPRINTF(" 0x%x %s %s\n", gpio, name, audio_gpio);
2045 
2046 		/* gpio5 */
2047 		if (strcmp(audio_gpio, "headphone-mute") == 0)
2048 			headphone_mute = addr;
2049 		/* gpio6 */
2050 		if (strcmp(audio_gpio, "amp-mute") == 0)
2051 			amp_mute = addr;
2052 		/* extint-gpio15 */
2053 		if (strcmp(audio_gpio, "headphone-detect") == 0) {
2054 			headphone_detect = addr;
2055 			OF_getprop(gpio, "audio-gpio-active-state",
2056 			    &headphone_detect_active, 4);
2057 			OF_getprop(gpio, "interrupts", intr, 8);
2058 			headphone_detect_intr = intr[0];
2059 			headphone_detect_intrtype = intr[1];
2060 		}
2061 		/* gpio11 (keywest-11) */
2062 		if (strcmp(audio_gpio, "audio-hw-reset") == 0)
2063 			audio_hw_reset = addr;
2064 		gpio = OF_peer(gpio);
2065 	}
2066 	DPRINTF(" headphone-mute %p\n", headphone_mute);
2067 	DPRINTF(" amp-mute %p\n", amp_mute);
2068 	DPRINTF(" headphone-detect %p\n", headphone_detect);
2069 	DPRINTF(" headphone-detect active %x\n", headphone_detect_active);
2070 	DPRINTF(" headphone-detect intr %x\n", headphone_detect_intr);
2071 	DPRINTF(" audio-hw-reset %p\n", audio_hw_reset);
2072 
2073 	if (headphone_detect_intr != -1)
2074 		intr_establish(headphone_detect_intr, IST_EDGE, IPL_AUDIO,
2075 		    snapper_cint, sc);
2076 
2077 	sc->sc_rate = 44100;	/* default rate */
2078 	sc->sc_bitspersample = 16;
2079 
2080 	/* Enable headphone interrupt? */
2081 	*headphone_detect |= 0x80;
2082 	__asm volatile ("eieio");
2083 
2084 	/* i2c_set_port(port); */
2085 
2086 	if (tas3004_init(sc))
2087 		return;
2088 
2089 	/* Update headphone status. */
2090 	snapper_cint(sc);
2091 
2092 	snapper_set_volume(sc, 128, 128);
2093 	snapper_set_bass(sc, 128);
2094 	snapper_set_treble(sc, 128);
2095 
2096 	/* Record source defaults to microphone.  This reflects the
2097 	 * default value for the ACR (see tas3004_initdata).
2098 	 */
2099 	sc->sc_record_source = 1 << 0;
2100 
2101 	/* We mute the analog input for now */
2102 	sc->mixer[0] = 128;
2103 	sc->mixer[1] = 128;
2104 	sc->mixer[2] = 0;
2105 	sc->mixer[3] = 128;
2106 	sc->mixer[4] = 128;
2107 	sc->mixer[5] = 0;
2108 	snapper_write_mixers(sc);
2109 }
2110 
2111 static void
2112 snapper_volume_up(device_t dev)
2113 {
2114 	struct snapper_softc *sc = device_private(dev);
2115 
2116 	snapper_set_volume(sc, min(0xff, sc->sc_vol_l + 8),
2117 	     min(0xff, sc->sc_vol_r + 8));
2118 }
2119 
2120 static void
2121 snapper_volume_down(device_t dev)
2122 {
2123 	struct snapper_softc *sc = device_private(dev);
2124 
2125 	snapper_set_volume(sc, max(0, sc->sc_vol_l - 8),
2126 	     max(0, sc->sc_vol_r - 8));
2127 }
2128