audioamd.c revision 1.24 1 1.24 tsutsui /* $NetBSD: audioamd.c,v 1.24 2009/09/17 12:38:11 tsutsui Exp $ */
2 1.1 augustss /* NetBSD: am7930_sparc.c,v 1.44 1999/03/14 22:29:00 jonathan Exp */
3 1.1 augustss
4 1.1 augustss /*
5 1.1 augustss * Copyright (c) 1995 Rolf Grossmann
6 1.1 augustss * All rights reserved.
7 1.1 augustss *
8 1.1 augustss * Redistribution and use in source and binary forms, with or without
9 1.1 augustss * modification, are permitted provided that the following conditions
10 1.1 augustss * are met:
11 1.1 augustss * 1. Redistributions of source code must retain the above copyright
12 1.1 augustss * notice, this list of conditions and the following disclaimer.
13 1.1 augustss * 2. Redistributions in binary form must reproduce the above copyright
14 1.1 augustss * notice, this list of conditions and the following disclaimer in the
15 1.1 augustss * documentation and/or other materials provided with the distribution.
16 1.1 augustss * 3. All advertising materials mentioning features or use of this software
17 1.1 augustss * must display the following acknowledgement:
18 1.1 augustss * This product includes software developed by Rolf Grossmann.
19 1.1 augustss * 4. The name of the author may not be used to endorse or promote products
20 1.1 augustss * derived from this software without specific prior written permission
21 1.1 augustss *
22 1.1 augustss * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 1.1 augustss * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 1.1 augustss * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 1.1 augustss * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 1.1 augustss * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 1.1 augustss * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 1.1 augustss * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 1.1 augustss * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 1.1 augustss * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 1.1 augustss * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 1.1 augustss */
33 1.17 lukem
34 1.17 lukem #include <sys/cdefs.h>
35 1.24 tsutsui __KERNEL_RCSID(0, "$NetBSD: audioamd.c,v 1.24 2009/09/17 12:38:11 tsutsui Exp $");
36 1.1 augustss
37 1.1 augustss #include "audio.h"
38 1.1 augustss #if NAUDIO > 0
39 1.1 augustss
40 1.1 augustss #include <sys/param.h>
41 1.1 augustss #include <sys/systm.h>
42 1.1 augustss #include <sys/errno.h>
43 1.1 augustss #include <sys/device.h>
44 1.22 ad #include <sys/bus.h>
45 1.22 ad #include <sys/intr.h>
46 1.23 ad #include <sys/mutex.h>
47 1.1 augustss
48 1.1 augustss #include <machine/autoconf.h>
49 1.1 augustss
50 1.1 augustss #include <sys/audioio.h>
51 1.1 augustss #include <dev/audio_if.h>
52 1.1 augustss
53 1.1 augustss #include <dev/ic/am7930reg.h>
54 1.1 augustss #include <dev/ic/am7930var.h>
55 1.3 mycroft #include <sparc/dev/audioamdvar.h>
56 1.1 augustss
57 1.1 augustss #define AUDIO_ROM_NAME "audio"
58 1.1 augustss
59 1.1 augustss #ifdef AUDIO_DEBUG
60 1.1 augustss #define DPRINTF(x) if (am7930debug) printf x
61 1.1 augustss #define DPRINTFN(n,x) if (am7930debug>(n)) printf x
62 1.1 augustss #else
63 1.1 augustss #define DPRINTF(x)
64 1.1 augustss #define DPRINTFN(n,x)
65 1.1 augustss #endif /* AUDIO_DEBUG */
66 1.1 augustss
67 1.1 augustss
68 1.1 augustss /* interrupt interfaces */
69 1.20 kent int am7930hwintr(void *);
70 1.1 augustss struct auio *auiop;
71 1.20 kent void am7930swintr(void *);
72 1.1 augustss
73 1.15 pk /* from amd7930intr.s: */
74 1.15 pk void amd7930_trap(void);
75 1.15 pk
76 1.1 augustss /*
77 1.20 kent * interrupt-handler status
78 1.1 augustss */
79 1.1 augustss struct am7930_intrhand {
80 1.20 kent int (*ih_fun)(void *);
81 1.1 augustss void *ih_arg;
82 1.1 augustss };
83 1.1 augustss
84 1.1 augustss struct audioamd_softc {
85 1.1 augustss struct am7930_softc sc_am7930; /* glue to MI code */
86 1.1 augustss
87 1.1 augustss bus_space_tag_t sc_bt; /* bus cookie */
88 1.1 augustss bus_space_handle_t sc_bh; /* device registers */
89 1.1 augustss
90 1.1 augustss struct am7930_intrhand sc_ih; /* interrupt vector (hw or sw) */
91 1.1 augustss void (*sc_rintr)(void*); /* input completion intr handler */
92 1.1 augustss void *sc_rarg; /* arg for sc_rintr() */
93 1.1 augustss void (*sc_pintr)(void*); /* output completion intr handler */
94 1.1 augustss void *sc_parg; /* arg for sc_pintr() */
95 1.1 augustss
96 1.1 augustss /* sc_au is special in that the hardware interrupt handler uses it */
97 1.1 augustss struct auio sc_au; /* recv and xmit buffers, etc */
98 1.1 augustss #define sc_intrcnt sc_au.au_intrcnt /* statistics */
99 1.14 pk void *sc_sicookie; /* softintr(9) cookie */
100 1.23 ad kmutex_t sc_lock;
101 1.1 augustss };
102 1.1 augustss
103 1.24 tsutsui int audioamd_mainbus_match(device_t, cfdata_t, void *);
104 1.24 tsutsui void audioamd_mainbus_attach(device_t, device_t, void *);
105 1.24 tsutsui int audioamd_obio_match(device_t, cfdata_t, void *);
106 1.24 tsutsui void audioamd_obio_attach(device_t, device_t, void *);
107 1.24 tsutsui int audioamd_sbus_match(device_t, cfdata_t, void *);
108 1.24 tsutsui void audioamd_sbus_attach(device_t, device_t, void *);
109 1.20 kent void audioamd_attach(struct audioamd_softc *, int);
110 1.1 augustss
111 1.11 thorpej CFATTACH_DECL(audioamd_mainbus, sizeof(struct audioamd_softc),
112 1.12 thorpej audioamd_mainbus_match, audioamd_mainbus_attach, NULL, NULL);
113 1.1 augustss
114 1.13 jdc CFATTACH_DECL(audioamd_obio, sizeof(struct audioamd_softc),
115 1.13 jdc audioamd_obio_match, audioamd_obio_attach, NULL, NULL);
116 1.13 jdc
117 1.11 thorpej CFATTACH_DECL(audioamd_sbus, sizeof(struct audioamd_softc),
118 1.12 thorpej audioamd_sbus_match, audioamd_sbus_attach, NULL, NULL);
119 1.1 augustss
120 1.1 augustss /*
121 1.1 augustss * Define our interface into the am7930 MI driver.
122 1.1 augustss */
123 1.1 augustss
124 1.20 kent uint8_t audioamd_codec_iread(struct am7930_softc *, int);
125 1.20 kent uint16_t audioamd_codec_iread16(struct am7930_softc *, int);
126 1.20 kent uint8_t audioamd_codec_dread(struct audioamd_softc *, int);
127 1.20 kent void audioamd_codec_iwrite(struct am7930_softc *, int, uint8_t);
128 1.20 kent void audioamd_codec_iwrite16(struct am7930_softc *, int, uint16_t);
129 1.20 kent void audioamd_codec_dwrite(struct audioamd_softc *, int, uint8_t);
130 1.20 kent void audioamd_onopen(struct am7930_softc *);
131 1.20 kent void audioamd_onclose(struct am7930_softc *);
132 1.1 augustss
133 1.1 augustss struct am7930_glue audioamd_glue = {
134 1.1 augustss audioamd_codec_iread,
135 1.1 augustss audioamd_codec_iwrite,
136 1.1 augustss audioamd_codec_iread16,
137 1.1 augustss audioamd_codec_iwrite16,
138 1.1 augustss audioamd_onopen,
139 1.1 augustss audioamd_onclose,
140 1.1 augustss 0,
141 1.1 augustss 0,
142 1.1 augustss 0,
143 1.1 augustss };
144 1.1 augustss
145 1.1 augustss /*
146 1.1 augustss * Define our interface to the higher level audio driver.
147 1.1 augustss */
148 1.20 kent int audioamd_start_output(void *, void *, int, void (*)(void *), void *);
149 1.20 kent int audioamd_start_input(void *, void *, int, void (*)(void *), void *);
150 1.20 kent int audioamd_getdev(void *, struct audio_device *);
151 1.1 augustss
152 1.19 yamt const struct audio_hw_if sa_hw_if = {
153 1.1 augustss am7930_open,
154 1.1 augustss am7930_close,
155 1.1 augustss 0,
156 1.1 augustss am7930_query_encoding,
157 1.1 augustss am7930_set_params,
158 1.1 augustss am7930_round_blocksize,
159 1.1 augustss am7930_commit_settings,
160 1.1 augustss 0,
161 1.1 augustss 0,
162 1.1 augustss audioamd_start_output, /* md */
163 1.1 augustss audioamd_start_input, /* md */
164 1.1 augustss am7930_halt_output,
165 1.1 augustss am7930_halt_input,
166 1.1 augustss 0,
167 1.1 augustss audioamd_getdev,
168 1.1 augustss 0,
169 1.1 augustss am7930_set_port,
170 1.1 augustss am7930_get_port,
171 1.1 augustss am7930_query_devinfo,
172 1.1 augustss 0,
173 1.1 augustss 0,
174 1.1 augustss 0,
175 1.20 kent 0,
176 1.1 augustss am7930_get_props,
177 1.7 augustss 0,
178 1.7 augustss 0,
179 1.20 kent 0,
180 1.1 augustss };
181 1.1 augustss
182 1.1 augustss struct audio_device audioamd_device = {
183 1.1 augustss "am7930",
184 1.1 augustss "x",
185 1.1 augustss "audioamd"
186 1.1 augustss };
187 1.1 augustss
188 1.1 augustss
189 1.1 augustss int
190 1.24 tsutsui audioamd_mainbus_match(device_t parent, cfdata_t cf, void *aux)
191 1.1 augustss {
192 1.20 kent struct mainbus_attach_args *ma;
193 1.1 augustss
194 1.20 kent ma = aux;
195 1.1 augustss if (CPU_ISSUN4)
196 1.20 kent return 0;
197 1.20 kent return strcmp(AUDIO_ROM_NAME, ma->ma_name) == 0;
198 1.1 augustss }
199 1.1 augustss
200 1.1 augustss int
201 1.24 tsutsui audioamd_obio_match(device_t parent, cfdata_t cf, void *aux)
202 1.13 jdc {
203 1.20 kent union obio_attach_args *uoba;
204 1.13 jdc
205 1.20 kent uoba = aux;
206 1.13 jdc if (uoba->uoba_isobio4 != 0)
207 1.20 kent return 0;
208 1.13 jdc
209 1.20 kent return strcmp("audio", uoba->uoba_sbus.sa_name) == 0;
210 1.13 jdc }
211 1.13 jdc
212 1.13 jdc int
213 1.24 tsutsui audioamd_sbus_match(device_t parent, cfdata_t cf, void *aux)
214 1.1 augustss {
215 1.20 kent struct sbus_attach_args *sa;
216 1.1 augustss
217 1.20 kent sa = aux;
218 1.20 kent return strcmp(AUDIO_ROM_NAME, sa->sa_name) == 0;
219 1.1 augustss }
220 1.1 augustss
221 1.1 augustss void
222 1.24 tsutsui audioamd_mainbus_attach(device_t parent, device_t self, void *aux)
223 1.1 augustss {
224 1.20 kent struct mainbus_attach_args *ma;
225 1.20 kent struct audioamd_softc *sc;
226 1.1 augustss bus_space_handle_t bh;
227 1.1 augustss
228 1.20 kent ma = aux;
229 1.24 tsutsui sc = device_private(self);
230 1.1 augustss sc->sc_bt = ma->ma_bustag;
231 1.1 augustss
232 1.8 pk if (bus_space_map(
233 1.1 augustss ma->ma_bustag,
234 1.1 augustss ma->ma_paddr,
235 1.2 mycroft AM7930_DREG_SIZE,
236 1.1 augustss BUS_SPACE_MAP_LINEAR,
237 1.1 augustss &bh) != 0) {
238 1.24 tsutsui printf("%s: cannot map registers\n", device_xname(self));
239 1.1 augustss return;
240 1.1 augustss }
241 1.1 augustss sc->sc_bh = bh;
242 1.1 augustss audioamd_attach(sc, ma->ma_pri);
243 1.1 augustss }
244 1.1 augustss
245 1.13 jdc void
246 1.24 tsutsui audioamd_obio_attach(device_t parent, device_t self, void *aux)
247 1.20 kent {
248 1.20 kent union obio_attach_args *uoba;
249 1.20 kent struct sbus_attach_args *sa;
250 1.20 kent struct audioamd_softc *sc;
251 1.13 jdc bus_space_handle_t bh;
252 1.13 jdc
253 1.20 kent uoba = aux;
254 1.20 kent sa = &uoba->uoba_sbus;
255 1.24 tsutsui sc = device_private(self);
256 1.13 jdc sc->sc_bt = sa->sa_bustag;
257 1.13 jdc
258 1.13 jdc if (sbus_bus_map(sa->sa_bustag,
259 1.13 jdc sa->sa_slot, sa->sa_offset,
260 1.13 jdc AM7930_DREG_SIZE,
261 1.13 jdc 0, &bh) != 0) {
262 1.24 tsutsui printf("%s: cannot map registers\n", device_xname(self));
263 1.13 jdc return;
264 1.13 jdc }
265 1.13 jdc sc->sc_bh = bh;
266 1.13 jdc audioamd_attach(sc, sa->sa_pri);
267 1.13 jdc }
268 1.1 augustss
269 1.1 augustss void
270 1.24 tsutsui audioamd_sbus_attach(device_t parent, device_t self, void *aux)
271 1.1 augustss {
272 1.20 kent struct sbus_attach_args *sa;
273 1.20 kent struct audioamd_softc *sc;
274 1.1 augustss bus_space_handle_t bh;
275 1.1 augustss
276 1.20 kent sa = aux;
277 1.24 tsutsui sc = device_private(self);
278 1.1 augustss sc->sc_bt = sa->sa_bustag;
279 1.1 augustss
280 1.8 pk if (sbus_bus_map(sa->sa_bustag,
281 1.8 pk sa->sa_slot, sa->sa_offset,
282 1.8 pk AM7930_DREG_SIZE,
283 1.8 pk 0, &bh) != 0) {
284 1.24 tsutsui printf("%s: cannot map registers\n", device_xname(self));
285 1.1 augustss return;
286 1.1 augustss }
287 1.1 augustss sc->sc_bh = bh;
288 1.1 augustss audioamd_attach(sc, sa->sa_pri);
289 1.1 augustss }
290 1.1 augustss
291 1.1 augustss void
292 1.20 kent audioamd_attach(struct audioamd_softc *sc, int pri)
293 1.1 augustss {
294 1.24 tsutsui device_t self;
295 1.1 augustss
296 1.1 augustss /*
297 1.1 augustss * Set up glue for MI code early; we use some of it here.
298 1.1 augustss */
299 1.24 tsutsui self = &sc->sc_am7930.sc_dev;
300 1.2 mycroft sc->sc_am7930.sc_glue = &audioamd_glue;
301 1.23 ad mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_HIGH);
302 1.1 augustss
303 1.2 mycroft am7930_init(&sc->sc_am7930, AUDIOAMD_POLL_MODE);
304 1.1 augustss
305 1.14 pk auiop = &sc->sc_au;
306 1.15 pk
307 1.15 pk /* Copy bus tag & handle for use by am7930_trap */
308 1.15 pk sc->sc_au.au_bt = sc->sc_bt;
309 1.15 pk sc->sc_au.au_bh = sc->sc_bh;
310 1.23 ad (void)bus_intr_establish2(sc->sc_bt, pri, IPL_HIGH,
311 1.15 pk am7930hwintr, sc, amd7930_trap);
312 1.14 pk
313 1.22 ad sc->sc_sicookie = softint_establish(SOFTINT_SERIAL, am7930swintr, sc);
314 1.14 pk if (sc->sc_sicookie == NULL) {
315 1.14 pk printf("\n%s: cannot establish software interrupt\n",
316 1.24 tsutsui device_xname(self));
317 1.14 pk return;
318 1.14 pk }
319 1.14 pk
320 1.14 pk printf(" softpri %d\n", IPL_SOFTAUDIO);
321 1.14 pk
322 1.1 augustss
323 1.4 cgd evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL,
324 1.24 tsutsui device_xname(self), "intr");
325 1.1 augustss
326 1.24 tsutsui audio_attach_mi(&sa_hw_if, sc, self);
327 1.1 augustss }
328 1.1 augustss
329 1.1 augustss
330 1.1 augustss void
331 1.20 kent audioamd_onopen(struct am7930_softc *sc)
332 1.1 augustss {
333 1.20 kent struct audioamd_softc *mdsc;
334 1.1 augustss
335 1.20 kent mdsc = (struct audioamd_softc *)sc;
336 1.23 ad
337 1.1 augustss /* reset pdma state */
338 1.23 ad mutex_spin_enter(&mdsc->sc_lock);
339 1.1 augustss mdsc->sc_rintr = 0;
340 1.1 augustss mdsc->sc_rarg = 0;
341 1.1 augustss mdsc->sc_pintr = 0;
342 1.1 augustss mdsc->sc_parg = 0;
343 1.1 augustss mdsc->sc_au.au_rdata = 0;
344 1.1 augustss mdsc->sc_au.au_pdata = 0;
345 1.23 ad mutex_spin_exit(&mdsc->sc_lock);
346 1.1 augustss }
347 1.1 augustss
348 1.1 augustss
349 1.1 augustss void
350 1.20 kent audioamd_onclose(struct am7930_softc *sc)
351 1.1 augustss {
352 1.1 augustss /* On sparc, just do the chipset-level halt. */
353 1.1 augustss am7930_halt_input(sc);
354 1.1 augustss am7930_halt_output(sc);
355 1.1 augustss }
356 1.1 augustss
357 1.1 augustss int
358 1.20 kent audioamd_start_output(void *addr, void *p, int cc,
359 1.20 kent void (*intr)(void *), void *arg)
360 1.1 augustss {
361 1.20 kent struct audioamd_softc *sc;
362 1.1 augustss
363 1.1 augustss DPRINTFN(1, ("sa_start_output: cc=%d %p (%p)\n", cc, intr, arg));
364 1.20 kent sc = addr;
365 1.23 ad
366 1.23 ad mutex_spin_enter(&sc->sc_lock);
367 1.18 mycroft audioamd_codec_iwrite(&sc->sc_am7930,
368 1.20 kent AM7930_IREG_INIT, AM7930_INIT_PMS_ACTIVE);
369 1.1 augustss sc->sc_pintr = intr;
370 1.1 augustss sc->sc_parg = arg;
371 1.1 augustss sc->sc_au.au_pdata = p;
372 1.1 augustss sc->sc_au.au_pend = (char *)p + cc - 1;
373 1.23 ad mutex_spin_exit(&sc->sc_lock);
374 1.23 ad
375 1.23 ad DPRINTF(("sa_start_output: started intrs.\n"));
376 1.1 augustss return(0);
377 1.1 augustss }
378 1.1 augustss
379 1.1 augustss int
380 1.20 kent audioamd_start_input(void *addr, void *p, int cc,
381 1.20 kent void (*intr)(void *), void *arg)
382 1.1 augustss {
383 1.20 kent struct audioamd_softc *sc;
384 1.1 augustss
385 1.1 augustss DPRINTFN(1, ("sa_start_input: cc=%d %p (%p)\n", cc, intr, arg));
386 1.20 kent sc = addr;
387 1.23 ad
388 1.23 ad mutex_spin_enter(&sc->sc_lock);
389 1.18 mycroft audioamd_codec_iwrite(&sc->sc_am7930,
390 1.20 kent AM7930_IREG_INIT, AM7930_INIT_PMS_ACTIVE);
391 1.1 augustss sc->sc_rintr = intr;
392 1.1 augustss sc->sc_rarg = arg;
393 1.1 augustss sc->sc_au.au_rdata = p;
394 1.1 augustss sc->sc_au.au_rend = (char *)p + cc -1;
395 1.23 ad mutex_spin_exit(&sc->sc_lock);
396 1.23 ad
397 1.23 ad DPRINTF(("sa_start_input: started intrs.\n"));
398 1.23 ad
399 1.1 augustss return(0);
400 1.1 augustss }
401 1.1 augustss
402 1.1 augustss
403 1.1 augustss /*
404 1.1 augustss * Pseudo-DMA support: either C or locore assember.
405 1.1 augustss */
406 1.1 augustss
407 1.1 augustss int
408 1.20 kent am7930hwintr(void *v)
409 1.1 augustss {
410 1.20 kent struct audioamd_softc *sc;
411 1.20 kent struct auio *au;
412 1.20 kent uint8_t *d, *e;
413 1.1 augustss int k;
414 1.1 augustss
415 1.20 kent sc = v;
416 1.20 kent au = &sc->sc_au;
417 1.23 ad mutex_spin_enter(&sc->sc_lock);
418 1.23 ad
419 1.1 augustss /* clear interrupt */
420 1.1 augustss k = audioamd_codec_dread(sc, AM7930_DREG_IR);
421 1.14 pk if ((k & (AM7930_IR_DTTHRSH|AM7930_IR_DRTHRSH|AM7930_IR_DSRI|
422 1.23 ad AM7930_IR_DERI|AM7930_IR_BBUFF)) == 0) {
423 1.23 ad mutex_spin_exit(&sc->sc_lock);
424 1.20 kent return 0;
425 1.23 ad }
426 1.1 augustss
427 1.1 augustss /* receive incoming data */
428 1.1 augustss d = au->au_rdata;
429 1.1 augustss e = au->au_rend;
430 1.1 augustss if (d && d <= e) {
431 1.1 augustss *d = audioamd_codec_dread(sc, AM7930_DREG_BBRB);
432 1.1 augustss au->au_rdata++;
433 1.1 augustss if (d == e) {
434 1.1 augustss DPRINTFN(1, ("am7930hwintr: swintr(r) requested"));
435 1.22 ad softint_schedule(sc->sc_sicookie);
436 1.1 augustss }
437 1.1 augustss }
438 1.1 augustss
439 1.1 augustss /* send outgoing data */
440 1.1 augustss d = au->au_pdata;
441 1.1 augustss e = au->au_pend;
442 1.1 augustss if (d && d <= e) {
443 1.1 augustss audioamd_codec_dwrite(sc, AM7930_DREG_BBTB, *d);
444 1.1 augustss au->au_pdata++;
445 1.1 augustss if (d == e) {
446 1.1 augustss DPRINTFN(1, ("am7930hwintr: swintr(p) requested"));
447 1.22 ad softint_schedule(sc->sc_sicookie);
448 1.1 augustss }
449 1.1 augustss }
450 1.1 augustss
451 1.9 gmcgarry au->au_intrcnt.ev_count++;
452 1.23 ad mutex_spin_exit(&sc->sc_lock);
453 1.23 ad
454 1.20 kent return 1;
455 1.1 augustss }
456 1.1 augustss
457 1.14 pk void
458 1.20 kent am7930swintr(void *sc0)
459 1.1 augustss {
460 1.20 kent struct audioamd_softc *sc;
461 1.1 augustss struct auio *au;
462 1.23 ad bool pint;
463 1.1 augustss
464 1.20 kent sc = sc0;
465 1.1 augustss DPRINTFN(1, ("audiointr: sc=%p\n", sc););
466 1.1 augustss
467 1.1 augustss au = &sc->sc_au;
468 1.23 ad mutex_spin_enter(&sc->sc_lock);
469 1.1 augustss if (au->au_rdata > au->au_rend && sc->sc_rintr != NULL) {
470 1.23 ad mutex_spin_exit(&sc->sc_lock);
471 1.1 augustss (*sc->sc_rintr)(sc->sc_rarg);
472 1.23 ad mutex_spin_enter(&sc->sc_lock);
473 1.1 augustss }
474 1.23 ad pint = (au->au_pdata > au->au_pend && sc->sc_pintr != NULL);
475 1.23 ad mutex_spin_exit(&sc->sc_lock);
476 1.23 ad if (pint)
477 1.1 augustss (*sc->sc_pintr)(sc->sc_parg);
478 1.1 augustss }
479 1.1 augustss
480 1.1 augustss
481 1.1 augustss /* indirect write */
482 1.1 augustss void
483 1.20 kent audioamd_codec_iwrite(struct am7930_softc *sc, int reg, uint8_t val)
484 1.1 augustss {
485 1.20 kent struct audioamd_softc *mdsc;
486 1.2 mycroft
487 1.20 kent mdsc = (struct audioamd_softc *)sc;
488 1.2 mycroft audioamd_codec_dwrite(mdsc, AM7930_DREG_CR, reg);
489 1.2 mycroft audioamd_codec_dwrite(mdsc, AM7930_DREG_DR, val);
490 1.1 augustss }
491 1.1 augustss
492 1.1 augustss void
493 1.20 kent audioamd_codec_iwrite16(struct am7930_softc *sc, int reg, uint16_t val)
494 1.1 augustss {
495 1.20 kent struct audioamd_softc *mdsc;
496 1.2 mycroft
497 1.20 kent mdsc = (struct audioamd_softc *)sc;
498 1.2 mycroft audioamd_codec_dwrite(mdsc, AM7930_DREG_CR, reg);
499 1.2 mycroft audioamd_codec_dwrite(mdsc, AM7930_DREG_DR, val);
500 1.2 mycroft audioamd_codec_dwrite(mdsc, AM7930_DREG_DR, val>>8);
501 1.1 augustss }
502 1.1 augustss
503 1.1 augustss
504 1.1 augustss /* indirect read */
505 1.20 kent uint8_t
506 1.20 kent audioamd_codec_iread(struct am7930_softc *sc, int reg)
507 1.1 augustss {
508 1.20 kent struct audioamd_softc *mdsc;
509 1.2 mycroft
510 1.20 kent mdsc = (struct audioamd_softc *)sc;
511 1.2 mycroft audioamd_codec_dwrite(mdsc, AM7930_DREG_CR, reg);
512 1.2 mycroft return (audioamd_codec_dread(mdsc, AM7930_DREG_DR));
513 1.1 augustss }
514 1.1 augustss
515 1.20 kent uint16_t
516 1.20 kent audioamd_codec_iread16(struct am7930_softc *sc, int reg)
517 1.1 augustss {
518 1.20 kent struct audioamd_softc *mdsc;
519 1.20 kent uint8_t lo, hi;
520 1.2 mycroft
521 1.20 kent mdsc = (struct audioamd_softc *)sc;
522 1.2 mycroft audioamd_codec_dwrite(mdsc, AM7930_DREG_CR, reg);
523 1.2 mycroft lo = audioamd_codec_dread(mdsc, AM7930_DREG_DR);
524 1.2 mycroft hi = audioamd_codec_dread(mdsc, AM7930_DREG_DR);
525 1.20 kent return (hi << 8) | lo;
526 1.1 augustss }
527 1.1 augustss
528 1.1 augustss /* direct read */
529 1.20 kent uint8_t
530 1.20 kent audioamd_codec_dread(struct audioamd_softc *sc, int reg)
531 1.2 mycroft {
532 1.20 kent
533 1.20 kent return bus_space_read_1(sc->sc_bt, sc->sc_bh, reg);
534 1.2 mycroft }
535 1.2 mycroft
536 1.2 mycroft /* direct write */
537 1.2 mycroft void
538 1.20 kent audioamd_codec_dwrite(struct audioamd_softc *sc, int reg, uint8_t val)
539 1.1 augustss {
540 1.20 kent
541 1.2 mycroft bus_space_write_1(sc->sc_bt, sc->sc_bh, reg, val);
542 1.2 mycroft }
543 1.2 mycroft
544 1.2 mycroft int
545 1.20 kent audioamd_getdev(void *addr, struct audio_device *retp)
546 1.2 mycroft {
547 1.2 mycroft
548 1.2 mycroft *retp = audioamd_device;
549 1.20 kent return 0;
550 1.1 augustss }
551 1.1 augustss
552 1.1 augustss #endif /* NAUDIO > 0 */
553