Annotation of sys/arch/macppc/dev/snapper.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: snapper.c,v 1.28 2007/04/23 16:27:20 deraadt Exp $ */
2: /* $NetBSD: snapper.c,v 1.1 2003/12/27 02:19:34 grant Exp $ */
3:
4: /*-
5: * Copyright (c) 2002 Tsubai Masanari. All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: * 3. The name of the author may not be used to endorse or promote products
16: * derived from this software without specific prior written permission.
17: *
18: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27: * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28: */
29:
30: /*
31: * Datasheet is available from
32: * http://focus.ti.com/docs/prod/folders/print/tas3004.html
33: */
34:
35: #include <sys/param.h>
36: #include <sys/audioio.h>
37: #include <sys/device.h>
38: #include <sys/systm.h>
39:
40: #include <dev/audio_if.h>
41: #include <dev/ofw/openfirm.h>
42: #include <macppc/dev/dbdma.h>
43:
44: #include <machine/autoconf.h>
45:
46: #include <macppc/dev/i2svar.h>
47:
48: #ifdef SNAPPER_DEBUG
49: # define DPRINTF printf
50: #else
51: # define DPRINTF while (0) printf
52: #endif
53:
54: /* XXX */
55: #define snapper_softc i2s_softc
56:
57: /* XXX */
58: int kiic_write(struct device *, int, int, const void *, int);
59: int kiic_writereg(struct device *, int, u_int);
60:
61: void snapper_init(struct snapper_softc *);
62: int snapper_getdev(void *, struct audio_device *);
63: int snapper_match(struct device *, void *, void *);
64: void snapper_attach(struct device *, struct device *, void *);
65: void snapper_defer(struct device *);
66: void snapper_set_volume(struct snapper_softc *, int, int);
67: void snapper_set_bass(struct snapper_softc *, int);
68: void snapper_set_treble(struct snapper_softc *, int);
69:
70: int tas3004_write(struct snapper_softc *, u_int, const void *);
71: int tas3004_init(struct snapper_softc *);
72:
73: struct cfattach snapper_ca = {
74: sizeof(struct snapper_softc), snapper_match, snapper_attach
75: };
76: struct cfdriver snapper_cd = {
77: NULL, "snapper", DV_DULL
78: };
79:
80: struct audio_hw_if snapper_hw_if = {
81: i2s_open,
82: i2s_close,
83: NULL,
84: i2s_query_encoding,
85: i2s_set_params,
86: i2s_round_blocksize,
87: NULL,
88: NULL,
89: NULL,
90: NULL,
91: NULL,
92: i2s_halt_output,
93: i2s_halt_input,
94: NULL,
95: snapper_getdev,
96: NULL,
97: i2s_set_port,
98: i2s_get_port,
99: i2s_query_devinfo,
100: i2s_allocm, /* allocm */
101: NULL,
102: i2s_round_buffersize,
103: i2s_mappage,
104: i2s_get_props,
105: i2s_trigger_output,
106: i2s_trigger_input,
107: };
108:
109: struct audio_device snapper_device = {
110: "SNAPPER",
111: "",
112: "snapper"
113: };
114:
115: const uint8_t snapper_trebletab[] = {
116: 0x96, /* -18dB */
117: 0x94, /* -17dB */
118: 0x92, /* -16dB */
119: 0x90, /* -15dB */
120: 0x8e, /* -14dB */
121: 0x8c, /* -13dB */
122: 0x8a, /* -12dB */
123: 0x88, /* -11dB */
124: 0x86, /* -10dB */
125: 0x84, /* -9dB */
126: 0x82, /* -8dB */
127: 0x80, /* -7dB */
128: 0x7e, /* -6dB */
129: 0x7c, /* -5dB */
130: 0x7a, /* -4dB */
131: 0x78, /* -3dB */
132: 0x76, /* -2dB */
133: 0x74, /* -1dB */
134: 0x72, /* 0dB */
135: 0x70, /* 1dB */
136: 0x6d, /* 2dB */
137: 0x6b, /* 3dB */
138: 0x68, /* 4dB */
139: 0x65, /* 5dB */
140: 0x62, /* 6dB */
141: 0x5d, /* 7dB */
142: 0x59, /* 8dB */
143: 0x53, /* 9dB */
144: 0x4d, /* 10dB */
145: 0x47, /* 11dB */
146: 0x3f, /* 12dB */
147: 0x36, /* 13dB */
148: 0x2c, /* 14dB */
149: 0x20, /* 15dB */
150: 0x13, /* 16dB */
151: 0x04, /* 17dB */
152: 0x01, /* 18dB */
153: };
154:
155: const uint8_t snapper_basstab[] = {
156: 0x96, /* -18dB */
157: 0x94, /* -17dB */
158: 0x92, /* -16dB */
159: 0x90, /* -15dB */
160: 0x8e, /* -14dB */
161: 0x8c, /* -13dB */
162: 0x8a, /* -12dB */
163: 0x88, /* -11dB */
164: 0x86, /* -10dB */
165: 0x84, /* -9dB */
166: 0x82, /* -8dB */
167: 0x80, /* -7dB */
168: 0x7e, /* -6dB */
169: 0x7c, /* -5dB */
170: 0x7a, /* -4dB */
171: 0x78, /* -3dB */
172: 0x76, /* -2dB */
173: 0x74, /* -1dB */
174: 0x72, /* 0dB */
175: 0x6f, /* 1dB */
176: 0x6d, /* 2dB */
177: 0x6a, /* 3dB */
178: 0x67, /* 4dB */
179: 0x65, /* 5dB */
180: 0x62, /* 6dB */
181: 0x5f, /* 7dB */
182: 0x5b, /* 8dB */
183: 0x55, /* 9dB */
184: 0x4f, /* 10dB */
185: 0x49, /* 11dB */
186: 0x43, /* 12dB */
187: 0x3b, /* 13dB */
188: 0x33, /* 14dB */
189: 0x29, /* 15dB */
190: 0x1e, /* 16dB */
191: 0x11, /* 17dB */
192: 0x01, /* 18dB */
193: };
194:
195: /* TAS3004 registers */
196: #define DEQ_MCR1 0x01 /* Main control register 1 (1byte) */
197: #define DEQ_DRC 0x02 /* Dynamic range compression (6bytes?) */
198: #define DEQ_VOLUME 0x04 /* Volume (6bytes) */
199: #define DEQ_TREBLE 0x05 /* Treble control (1byte) */
200: #define DEQ_BASS 0x06 /* Bass control (1byte) */
201: #define DEQ_MIXER_L 0x07 /* Mixer left gain (9bytes) */
202: #define DEQ_MIXER_R 0x08 /* Mixer right gain (9bytes) */
203: #define DEQ_LB0 0x0a /* Left biquad 0 (15bytes) */
204: #define DEQ_LB1 0x0b /* Left biquad 1 (15bytes) */
205: #define DEQ_LB2 0x0c /* Left biquad 2 (15bytes) */
206: #define DEQ_LB3 0x0d /* Left biquad 3 (15bytes) */
207: #define DEQ_LB4 0x0e /* Left biquad 4 (15bytes) */
208: #define DEQ_LB5 0x0f /* Left biquad 5 (15bytes) */
209: #define DEQ_LB6 0x10 /* Left biquad 6 (15bytes) */
210: #define DEQ_RB0 0x13 /* Right biquad 0 (15bytes) */
211: #define DEQ_RB1 0x14 /* Right biquad 1 (15bytes) */
212: #define DEQ_RB2 0x15 /* Right biquad 2 (15bytes) */
213: #define DEQ_RB3 0x16 /* Right biquad 3 (15bytes) */
214: #define DEQ_RB4 0x17 /* Right biquad 4 (15bytes) */
215: #define DEQ_RB5 0x18 /* Right biquad 5 (15bytes) */
216: #define DEQ_RB6 0x19 /* Right biquad 6 (15bytes) */
217: #define DEQ_LLB 0x21 /* Left loudness biquad (15bytes) */
218: #define DEQ_RLB 0x22 /* Right loudness biquad (15bytes) */
219: #define DEQ_LLB_GAIN 0x23 /* Left loudness biquad gain (3bytes) */
220: #define DEQ_RLB_GAIN 0x24 /* Right loudness biquad gain (3bytes) */
221: #define DEQ_ACR 0x40 /* Analog control register (1byte) */
222: #define DEQ_MCR2 0x43 /* Main control register 2 (1byte) */
223:
224: #define DEQ_MCR1_FL 0x80 /* Fast load */
225: #define DEQ_MCR1_SC 0x40 /* SCLK frequency */
226: #define DEQ_MCR1_SC_32 0x00 /* 32fs */
227: #define DEQ_MCR1_SC_64 0x40 /* 64fs */
228: #define DEQ_MCR1_SM 0x30 /* Output serial port mode */
229: #define DEQ_MCR1_SM_L 0x00 /* Left justified */
230: #define DEQ_MCR1_SM_R 0x10 /* Right justified */
231: #define DEQ_MCR1_SM_I2S 0x20 /* I2S */
232: #define DEQ_MCR1_W 0x03 /* Serial port word length */
233: #define DEQ_MCR1_W_16 0x00 /* 16 bit */
234: #define DEQ_MCR1_W_18 0x01 /* 18 bit */
235: #define DEQ_MCR1_W_20 0x02 /* 20 bit */
236:
237: #define DEQ_MCR2_DL 0x80 /* Download */
238: #define DEQ_MCR2_AP 0x02 /* All pass mode */
239:
240: #define DEQ_ACR_ADM 0x80 /* ADC output mode */
241: #define DEQ_ACR_LRB 0x40 /* Select B input */
242: #define DEQ_ACR_DM 0x0c /* De-emphasis control */
243: #define DEQ_ACR_DM_OFF 0x00 /* off */
244: #define DEQ_ACR_DM_48 0x04 /* fs = 48kHz */
245: #define DEQ_ACR_DM_44 0x08 /* fs = 44.1kHz */
246: #define DEQ_ACR_INP 0x02 /* Analog input select */
247: #define DEQ_ACR_INP_A 0x00 /* A */
248: #define DEQ_ACR_INP_B 0x02 /* B */
249: #define DEQ_ACR_APD 0x01 /* Analog power down */
250:
251: struct tas3004_reg {
252: u_char MCR1[1];
253: u_char DRC[6];
254: u_char VOLUME[6];
255: u_char TREBLE[1];
256: u_char BASS[1];
257: u_char MIXER_L[9];
258: u_char MIXER_R[9];
259: u_char LB0[15];
260: u_char LB1[15];
261: u_char LB2[15];
262: u_char LB3[15];
263: u_char LB4[15];
264: u_char LB5[15];
265: u_char LB6[15];
266: u_char RB0[15];
267: u_char RB1[15];
268: u_char RB2[15];
269: u_char RB3[15];
270: u_char RB4[15];
271: u_char RB5[15];
272: u_char RB6[15];
273: u_char LLB[15];
274: u_char RLB[15];
275: u_char LLB_GAIN[3];
276: u_char RLB_GAIN[3];
277: u_char ACR[1];
278: u_char MCR2[1];
279: };
280:
281: int
282: snapper_match(struct device *parent, void *match, void *aux)
283: {
284: struct confargs *ca = aux;
285: int soundbus, soundchip, soundcodec;
286: char compat[32];
287:
288: if (strcmp(ca->ca_name, "i2s") != 0)
289: return (0);
290:
291: if ((soundbus = OF_child(ca->ca_node)) == 0 ||
292: (soundchip = OF_child(soundbus)) == 0)
293: return (0);
294:
295: bzero(compat, sizeof compat);
296: OF_getprop(soundchip, "compatible", compat, sizeof compat);
297:
298: if (strcmp(compat, "snapper") == 0)
299: return (1);
300:
301: if (OF_getprop(soundchip, "platform-tas-codec-ref",
302: &soundcodec, sizeof soundcodec) == sizeof soundcodec)
303: return (1);
304:
305: return (0);
306: }
307:
308: void
309: snapper_attach(struct device *parent, struct device *self, void *aux)
310: {
311: struct snapper_softc *sc = (struct snapper_softc *)self;
312:
313: sc->sc_setvolume = snapper_set_volume;
314: sc->sc_setbass = snapper_set_bass;
315: sc->sc_settreble = snapper_set_treble;
316:
317: i2s_attach(parent, sc, aux);
318: config_defer(self, snapper_defer);
319: }
320:
321: void
322: snapper_defer(struct device *dev)
323: {
324: struct snapper_softc *sc = (struct snapper_softc *)dev;
325: struct device *dv;
326:
327: TAILQ_FOREACH(dv, &alldevs, dv_list)
328: if (strncmp(dv->dv_xname, "kiic", 4) == 0 &&
329: strncmp(dv->dv_parent->dv_xname, "macobio", 7) == 0)
330: sc->sc_i2c = dv;
331: if (sc->sc_i2c == NULL) {
332: printf("%s: unable to find i2c\n", sc->sc_dev.dv_xname);
333: return;
334: }
335:
336: /* XXX If i2c has failed to attach, what should we do? */
337:
338: audio_attach_mi(&snapper_hw_if, sc, &sc->sc_dev);
339:
340: /* kiic_setmode(sc->sc_i2c, I2C_STDSUBMODE); */
341: snapper_init(sc);
342: }
343:
344: void
345: snapper_set_volume(struct snapper_softc *sc, int left, int right)
346: {
347: u_char vol[6];
348:
349: sc->sc_vol_l = left;
350: sc->sc_vol_r = right;
351:
352: left <<= 8; /* XXX for now */
353: right <<= 8;
354:
355: vol[0] = left >> 16;
356: vol[1] = left >> 8;
357: vol[2] = left;
358: vol[3] = right >> 16;
359: vol[4] = right >> 8;
360: vol[5] = right;
361:
362: tas3004_write(sc, DEQ_VOLUME, vol);
363: }
364:
365: void
366: snapper_set_treble(struct snapper_softc *sc, int value)
367: {
368: uint8_t reg;
369:
370: if ((value >= 0) && (value <= 255) && (value != sc->sc_treble)) {
371: reg = snapper_trebletab[(value >> 3) + 2];
372: if (tas3004_write(sc, DEQ_TREBLE, ®) < 0)
373: return;
374: sc->sc_treble = value;
375: }
376: }
377:
378: void
379: snapper_set_bass(struct snapper_softc *sc, int value)
380: {
381: uint8_t reg;
382:
383: if ((value >= 0) && (value <= 255) && (value != sc->sc_bass)) {
384: reg = snapper_basstab[(value >> 3) + 2];
385: if (tas3004_write(sc, DEQ_BASS, ®) < 0)
386: return;
387: sc->sc_bass = value;
388: }
389: }
390:
391: const struct tas3004_reg tas3004_initdata = {
392: { DEQ_MCR1_SC_64 | DEQ_MCR1_SM_I2S | DEQ_MCR1_W_20 }, /* MCR1 */
393: { 1, 0, 0, 0, 0, 0 }, /* DRC */
394: { 0, 0, 0, 0, 0, 0 }, /* VOLUME */
395: { 0x72 }, /* TREBLE */
396: { 0x72 }, /* BASS */
397: { 0x10, 0x00, 0x00, 0, 0, 0, 0, 0, 0 }, /* MIXER_L */
398: { 0x10, 0x00, 0x00, 0, 0, 0, 0, 0, 0 }, /* MIXER_R */
399: { 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* BIQUAD */
400: { 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* BIQUAD */
401: { 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* BIQUAD */
402: { 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* BIQUAD */
403: { 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* BIQUAD */
404: { 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* BIQUAD */
405: { 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* BIQUAD */
406: { 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* BIQUAD */
407: { 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* BIQUAD */
408: { 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* BIQUAD */
409: { 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* BIQUAD */
410: { 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* BIQUAD */
411: { 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* BIQUAD */
412: { 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* BIQUAD */
413: { 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* BIQUAD */
414: { 0x10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* BIQUAD */
415: { 0, 0, 0 }, /* LLB_GAIN */
416: { 0, 0, 0 }, /* RLB_GAIN */
417: { 0 }, /* ACR */
418: { 0 } /* MCR2 */
419: };
420:
421: const char tas3004_regsize[] = {
422: 0, /* 0x00 */
423: sizeof tas3004_initdata.MCR1, /* 0x01 */
424: sizeof tas3004_initdata.DRC, /* 0x02 */
425: 0, /* 0x03 */
426: sizeof tas3004_initdata.VOLUME, /* 0x04 */
427: sizeof tas3004_initdata.TREBLE, /* 0x05 */
428: sizeof tas3004_initdata.BASS, /* 0x06 */
429: sizeof tas3004_initdata.MIXER_L, /* 0x07 */
430: sizeof tas3004_initdata.MIXER_R, /* 0x08 */
431: 0, /* 0x09 */
432: sizeof tas3004_initdata.LB0, /* 0x0a */
433: sizeof tas3004_initdata.LB1, /* 0x0b */
434: sizeof tas3004_initdata.LB2, /* 0x0c */
435: sizeof tas3004_initdata.LB3, /* 0x0d */
436: sizeof tas3004_initdata.LB4, /* 0x0e */
437: sizeof tas3004_initdata.LB5, /* 0x0f */
438: sizeof tas3004_initdata.LB6, /* 0x10 */
439: 0, /* 0x11 */
440: 0, /* 0x12 */
441: sizeof tas3004_initdata.RB0, /* 0x13 */
442: sizeof tas3004_initdata.RB1, /* 0x14 */
443: sizeof tas3004_initdata.RB2, /* 0x15 */
444: sizeof tas3004_initdata.RB3, /* 0x16 */
445: sizeof tas3004_initdata.RB4, /* 0x17 */
446: sizeof tas3004_initdata.RB5, /* 0x18 */
447: sizeof tas3004_initdata.RB6, /* 0x19 */
448: 0,0,0,0, 0,0,
449: 0, /* 0x20 */
450: sizeof tas3004_initdata.LLB, /* 0x21 */
451: sizeof tas3004_initdata.RLB, /* 0x22 */
452: sizeof tas3004_initdata.LLB_GAIN, /* 0x23 */
453: sizeof tas3004_initdata.RLB_GAIN, /* 0x24 */
454: 0,0,0,0, 0,0,0,0, 0,0,0,
455: 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0,
456: sizeof tas3004_initdata.ACR, /* 0x40 */
457: 0, /* 0x41 */
458: 0, /* 0x42 */
459: sizeof tas3004_initdata.MCR2 /* 0x43 */
460: };
461:
462: #define DEQaddr 0x6a
463:
464: int
465: tas3004_write(struct snapper_softc *sc, u_int reg, const void *data)
466: {
467: int size;
468:
469: KASSERT(reg < sizeof tas3004_regsize);
470: size = tas3004_regsize[reg];
471: KASSERT(size > 0);
472:
473: if (kiic_write(sc->sc_i2c, DEQaddr, reg, data, size))
474: return (-1);
475:
476: return (0);
477: }
478:
479: #define DEQ_WRITE(sc, reg, addr) \
480: if (tas3004_write(sc, reg, addr)) goto err
481:
482: int
483: tas3004_init(struct snapper_softc *sc)
484: {
485: deq_reset(sc);
486:
487: DEQ_WRITE(sc, DEQ_LB0, tas3004_initdata.LB0);
488: DEQ_WRITE(sc, DEQ_LB1, tas3004_initdata.LB1);
489: DEQ_WRITE(sc, DEQ_LB2, tas3004_initdata.LB2);
490: DEQ_WRITE(sc, DEQ_LB3, tas3004_initdata.LB3);
491: DEQ_WRITE(sc, DEQ_LB4, tas3004_initdata.LB4);
492: DEQ_WRITE(sc, DEQ_LB5, tas3004_initdata.LB5);
493: DEQ_WRITE(sc, DEQ_LB6, tas3004_initdata.LB6);
494: DEQ_WRITE(sc, DEQ_RB0, tas3004_initdata.RB0);
495: DEQ_WRITE(sc, DEQ_RB1, tas3004_initdata.RB1);
496: DEQ_WRITE(sc, DEQ_RB1, tas3004_initdata.RB1);
497: DEQ_WRITE(sc, DEQ_RB2, tas3004_initdata.RB2);
498: DEQ_WRITE(sc, DEQ_RB3, tas3004_initdata.RB3);
499: DEQ_WRITE(sc, DEQ_RB4, tas3004_initdata.RB4);
500: DEQ_WRITE(sc, DEQ_RB5, tas3004_initdata.RB5);
501: DEQ_WRITE(sc, DEQ_MCR1, tas3004_initdata.MCR1);
502: DEQ_WRITE(sc, DEQ_MCR2, tas3004_initdata.MCR2);
503: DEQ_WRITE(sc, DEQ_DRC, tas3004_initdata.DRC);
504: DEQ_WRITE(sc, DEQ_VOLUME, tas3004_initdata.VOLUME);
505: DEQ_WRITE(sc, DEQ_TREBLE, tas3004_initdata.TREBLE);
506: DEQ_WRITE(sc, DEQ_BASS, tas3004_initdata.BASS);
507: DEQ_WRITE(sc, DEQ_MIXER_L, tas3004_initdata.MIXER_L);
508: DEQ_WRITE(sc, DEQ_MIXER_R, tas3004_initdata.MIXER_R);
509: DEQ_WRITE(sc, DEQ_LLB, tas3004_initdata.LLB);
510: DEQ_WRITE(sc, DEQ_RLB, tas3004_initdata.RLB);
511: DEQ_WRITE(sc, DEQ_LLB_GAIN, tas3004_initdata.LLB_GAIN);
512: DEQ_WRITE(sc, DEQ_RLB_GAIN, tas3004_initdata.RLB_GAIN);
513: DEQ_WRITE(sc, DEQ_ACR, tas3004_initdata.ACR);
514:
515: return (0);
516: err:
517: printf("%s: tas3004_init failed\n", sc->sc_dev.dv_xname);
518: return (-1);
519: }
520:
521: void
522: snapper_init(struct snapper_softc *sc)
523: {
524:
525: /* "sample-rates" (44100, 48000) */
526: i2s_set_rate(sc, 44100);
527:
528: #if 1
529: /* Enable I2C interrupts. */
530: #define IER 4
531: #define I2C_INT_DATA 0x01
532: #define I2C_INT_ADDR 0x02
533: #define I2C_INT_STOP 0x04
534: kiic_writereg(sc->sc_i2c, IER,I2C_INT_DATA|I2C_INT_ADDR|I2C_INT_STOP);
535: #endif
536:
537: if (tas3004_init(sc))
538: return;
539:
540: snapper_set_volume(sc, 80, 80);
541: }
542:
543: int
544: snapper_getdev(void *h, struct audio_device *retp)
545: {
546: *retp = snapper_device;
547: return (0);
548: }
CVSweb
![[BACK]](/icons/back.gif){kind=icon}
Return to snapper.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / sys / arch / macppc / dev