esa.c revision 1.7
1/* $NetBSD: esa.c,v 1.7 2002/01/14 19:24:39 pooka Exp $ */
2
3/*
4 * Copyright (c) 2001, 2002 Jared D. McNeill <jmcneill@invisible.yi.org>
5 * 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. The name of the author may not be used to endorse or promote products
13 *    derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28/*
29 * ESS Allegro-1 / Maestro3 Audio Driver
30 *
31 * Based on the FreeBSD maestro3 driver and the NetBSD eap driver.
32 * Original driver by Don Kim.
33 */
34
35#include <sys/types.h>
36#include <sys/errno.h>
37#include <sys/null.h>
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/malloc.h>
41#include <sys/device.h>
42#include <sys/conf.h>
43#include <sys/exec.h>
44#include <sys/select.h>
45#include <sys/audioio.h>
46
47#include <machine/bus.h>
48#include <machine/intr.h>
49
50#include <dev/pci/pcidevs.h>
51#include <dev/pci/pcivar.h>
52
53#include <dev/audio_if.h>
54#include <dev/mulaw.h>
55#include <dev/auconv.h>
56#include <dev/ic/ac97var.h>
57#include <dev/ic/ac97reg.h>
58
59#include <dev/pci/esareg.h>
60#include <dev/pci/esadsp.h>
61#include <dev/pci/esavar.h>
62
63#define PCI_CBIO	0x10
64
65#define ESA_DAC_DATA	0x1100
66
67enum {
68	ESS_ALLEGRO1,
69	ESS_MAESTRO3
70};
71
72static struct esa_card_type {
73	u_int16_t pci_vendor_id;
74	u_int16_t pci_product_id;
75	int type;
76	int delay1, delay2;
77} esa_card_types[] = {
78	{ PCI_VENDOR_ESSTECH, PCI_PRODUCT_ESSTECH_ALLEGRO1,
79	  ESS_ALLEGRO1, 50, 800 },
80	{ PCI_VENDOR_ESSTECH, PCI_PRODUCT_ESSTECH_MAESTRO3,
81	  ESS_MAESTRO3, 20, 500 },
82	{ PCI_VENDOR_ESSTECH, PCI_PRODUCT_ESSTECH_MAESTRO3_2,
83	  ESS_MAESTRO3, 20, 500 },
84	{ 0, 0, 0, 0, 0 }
85};
86
87struct audio_device esa_device = {
88	"ESS Allegro",
89	"",
90	"esa"
91};
92
93int		esa_match(struct device *, struct cfdata *, void *);
94void		esa_attach(struct device *, struct device *, void *);
95int		esa_detach(struct device *, int);
96
97/* audio(9) functions */
98int		esa_open(void *, int);
99void		esa_close(void *);
100int		esa_query_encoding(void *, struct audio_encoding *);
101int		esa_set_params(void *, int, int, struct audio_params *,
102			       struct audio_params *);
103int		esa_round_blocksize(void *, int);
104int		esa_init_output(void *, void *, int);
105int		esa_halt_output(void *);
106int		esa_halt_input(void *);
107int		esa_set_port(void *, mixer_ctrl_t *);
108int		esa_get_port(void *, mixer_ctrl_t *);
109int		esa_query_devinfo(void *, mixer_devinfo_t *);
110void *		esa_malloc(void *, int, size_t, int, int);
111void		esa_free(void *, void *, int);
112int		esa_getdev(void *, struct audio_device *);
113size_t		esa_round_buffersize(void *, int, size_t);
114int		esa_get_props(void *);
115int		esa_trigger_output(void *, void *, void *, int,
116				   void (*)(void *), void *,
117				   struct audio_params *);
118int		esa_trigger_input(void *, void *, void *, int,
119				  void (*)(void *), void *,
120				  struct audio_params *);
121
122int		esa_intr(void *);
123int		esa_allocmem(struct esa_softc *, size_t, size_t,
124			     struct esa_dma *);
125int		esa_freemem(struct esa_softc *, struct esa_dma *);
126paddr_t		esa_mappage(void *addr, void *mem, off_t off, int prot);
127
128/* Supporting subroutines */
129u_int16_t	esa_read_assp(struct esa_softc *, u_int16_t, u_int16_t);
130void		esa_write_assp(struct esa_softc *, u_int16_t, u_int16_t,
131			       u_int16_t);
132int		esa_init_codec(struct esa_softc *);
133int		esa_attach_codec(void *, struct ac97_codec_if *);
134int		esa_read_codec(void *, u_int8_t, u_int16_t *);
135int		esa_write_codec(void *, u_int8_t, u_int16_t);
136void		esa_reset_codec(void *);
137enum ac97_host_flags	esa_flags_codec(void *);
138int		esa_wait(struct esa_softc *);
139int		esa_init(struct esa_softc *);
140void		esa_config(struct esa_softc *);
141u_int8_t	esa_assp_halt(struct esa_softc *);
142void		esa_codec_reset(struct esa_softc *);
143int		esa_amp_enable(struct esa_softc *);
144void		esa_enable_interrupts(struct esa_softc *);
145u_int32_t	esa_get_pointer(struct esa_softc *, struct esa_channel *);
146
147/* power management */
148int		esa_power(struct esa_softc *, int);
149void		esa_powerhook(int, void *);
150int		esa_suspend(struct esa_softc *);
151int		esa_resume(struct esa_softc *);
152
153struct device *	audio_attach_mi_lkm(struct audio_hw_if *, void *,
154				    struct device *);
155
156static audio_encoding_t esa_encoding[] = {
157	{ 0, AudioEulinear, AUDIO_ENCODING_ULINEAR, 8, 0 },
158	{ 1, AudioEmulaw, AUDIO_ENCODING_ULAW, 8,
159		AUDIO_ENCODINGFLAG_EMULATED },
160	{ 2, AudioEalaw, AUDIO_ENCODING_ALAW, 8, AUDIO_ENCODINGFLAG_EMULATED },
161	{ 3, AudioEslinear, AUDIO_ENCODING_SLINEAR, 8,
162		AUDIO_ENCODINGFLAG_EMULATED }, /* XXX: Are you sure? */
163	{ 4, AudioEslinear_le, AUDIO_ENCODING_SLINEAR_LE, 16, 0 },
164	{ 5, AudioEulinear_le, AUDIO_ENCODING_ULINEAR_LE, 16,
165		AUDIO_ENCODINGFLAG_EMULATED },
166	{ 6, AudioEslinear_be, AUDIO_ENCODING_SLINEAR_BE, 16,
167		AUDIO_ENCODINGFLAG_EMULATED },
168	{ 7, AudioEulinear_be, AUDIO_ENCODING_ULINEAR_BE, 16,
169		AUDIO_ENCODINGFLAG_EMULATED }
170};
171
172#define ESA_NENCODINGS 8
173
174struct audio_hw_if esa_hw_if = {
175	esa_open,
176	esa_close,
177	NULL,			/* drain */
178	esa_query_encoding,
179	esa_set_params,
180	esa_round_blocksize,
181	NULL,			/* commit_settings */
182	esa_init_output,
183	NULL,			/* esa_init_input */
184	NULL,			/* start_output */
185	NULL,			/* start_input */
186	esa_halt_output,
187	esa_halt_input,
188	NULL,			/* speaker_ctl */
189	esa_getdev,
190	NULL,			/* getfd */
191	esa_set_port,
192	esa_get_port,
193	esa_query_devinfo,
194	esa_malloc,
195	esa_free,
196	esa_round_buffersize,
197	esa_mappage,
198	esa_get_props,
199	esa_trigger_output,
200	esa_trigger_input
201};
202
203struct cfattach esa_ca = {
204	sizeof(struct esa_softc), esa_match, esa_attach,
205	esa_detach, /*esa_activate*/ NULL
206};
207
208/*
209 * audio(9) functions
210 */
211
212int
213esa_open(void *hdl, int flags)
214{
215
216	return (0);
217}
218
219void
220esa_close(void *hdl)
221{
222
223	return;
224}
225
226int
227esa_query_encoding(void *hdl, struct audio_encoding *ae)
228{
229
230	if (ae->index < 0 || ae->index >= ESA_NENCODINGS)
231		return (EINVAL);
232	*ae = esa_encoding[ae->index];
233
234	return (0);
235}
236
237int
238esa_set_params(void *hdl, int setmode, int usemode, struct audio_params *play,
239	       struct audio_params *rec)
240{
241	struct esa_softc *sc = hdl;
242	struct esa_channel *ch;
243	struct audio_params *p;
244	u_int32_t data;
245	u_int32_t freq;
246	int mode;
247
248	for (mode = AUMODE_RECORD; mode != -1;
249	     mode = (mode == AUMODE_RECORD) ? AUMODE_PLAY : -1) {
250		if ((setmode & mode) == 0)
251			continue;
252
253		switch (mode) {
254		case AUMODE_PLAY:
255			p = play;
256			ch = &sc->play;
257			break;
258		case AUMODE_RECORD:
259			p = rec;
260			ch = &sc->rec;
261			break;
262		}
263
264		if (p->sample_rate < ESA_MINRATE ||
265		    p->sample_rate > ESA_MAXRATE ||
266		    (p->precision != 8 && p->precision != 16) ||
267		    (p->channels < 1 && p->channels > 2))
268			return (EINVAL);
269
270		p->factor = 1;
271		p->sw_code = 0;
272
273		switch(p->encoding) {
274		case AUDIO_ENCODING_SLINEAR_BE:
275			if (p->precision == 16)
276				p->sw_code = swap_bytes;
277			else
278				p->sw_code = change_sign8;
279			break;
280		case AUDIO_ENCODING_SLINEAR_LE:
281			if (p->precision != 16)
282				p->sw_code = change_sign8;
283			break;
284		case AUDIO_ENCODING_ULINEAR_BE:
285			if (p->precision == 16) {
286				if (mode == AUMODE_PLAY)
287					p->sw_code =
288					    swap_bytes_change_sign16_le;
289				else
290					p->sw_code =
291					    change_sign16_swap_bytes_le;
292			}
293			break;
294		case AUDIO_ENCODING_ULINEAR_LE:
295			if (p->precision == 16)
296				p->sw_code = change_sign16_le;
297			break;
298		case AUDIO_ENCODING_ULAW:
299			if (mode == AUMODE_PLAY) {
300				p->factor = 2;
301				p->sw_code = mulaw_to_slinear16_le;
302			} else
303				p->sw_code = ulinear8_to_mulaw;
304			break;
305		case AUDIO_ENCODING_ALAW:
306			if (mode == AUMODE_PLAY) {
307				p->factor = 2;
308				p->sw_code = alaw_to_slinear16_le;
309			} else
310				p->sw_code = ulinear8_to_alaw;
311			break;
312		default:
313			return (EINVAL);
314		}
315
316		if (p->channels == 1)
317			data = 1;
318		else
319			data = 0;
320		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
321			       ch->data_offset + ESA_SRC3_MODE_OFFSET,
322		    data);
323
324		if (play->precision * play->factor == 8)
325			data = 1;
326		else
327			data = 0;
328		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
329			       ch->data_offset + ESA_SRC3_WORD_LENGTH_OFFSET,
330			       data);
331
332		if ((freq = ((p->sample_rate << 15) + 24000) / 48000) != 0) {
333			freq--;
334		}
335		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
336			       ch->data_offset + ESA_CDATA_FREQUENCY, freq);
337	}
338
339	return (0);
340}
341
342int
343esa_round_blocksize(void *hdl, int bs)
344{
345	struct esa_softc *sc = hdl;
346
347	sc->play.blksize = sc->rec.blksize = 4096;
348
349	return (sc->play.blksize);
350}
351
352int
353esa_init_output(void *hdl, void *buffer, int size)
354{
355
356	return (0);
357}
358
359int
360esa_halt_output(void *hdl)
361{
362	struct esa_softc *sc = hdl;
363
364	if (sc->play.active == 0)
365		return (0);
366
367	sc->play.active = 0;
368
369	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
370		       ESA_KDATA_INSTANCE0_MINISRC, 0);
371	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_DMA_XFER0, 0);
372	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_MIXER_XFER0, 0);
373
374	return (0);
375}
376
377int
378esa_halt_input(void *hdl)
379{
380	struct esa_softc *sc = hdl;
381	bus_space_tag_t iot = sc->sc_iot;
382	bus_space_handle_t ioh = sc->sc_ioh;
383	u_int32_t data;
384
385	if (sc->rec.active == 0)
386		return (0);
387
388	sc->rec.active = 0;
389
390	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
391		       ESA_KDATA_TIMER_COUNT_RELOAD, 0);
392	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_TIMER_COUNT_CURRENT, 0);
393	data = bus_space_read_2(iot, ioh, ESA_HOST_INT_CTRL);
394	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL, data & ~ESA_CLKRUN_GEN_ENABLE);
395
396	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, sc->rec.data_offset +
397		       ESA_CDATA_INSTANCE_READY, 0);
398	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_ADC1_REQUEST, 0);
399
400	return (0);
401}
402
403void *
404esa_malloc(void *hdl, int direction, size_t size, int type, int flags)
405{
406	struct esa_softc *sc = hdl;
407	struct esa_dma *p;
408	int error;
409
410	p = malloc(sizeof(*p), type, flags);
411	if (!p)
412		return (0);
413	error = esa_allocmem(sc, size, 16, p);
414	if (error) {
415		free(p, type);
416		printf("%s: esa_malloc: not enough memory\n",
417		    sc->sc_dev.dv_xname);
418		return (0);
419	}
420	p->next = sc->sc_dmas;
421	sc->sc_dmas = p;
422
423	return (KERNADDR(p));
424}
425
426void
427esa_free(void *hdl, void *addr, int type)
428{
429	struct esa_softc *sc = hdl;
430	struct esa_dma *p;
431	struct esa_dma **pp;
432
433	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next)
434		if (KERNADDR(p) == addr) {
435			esa_freemem(sc, p);
436			*pp = p->next;
437			free(p, type);
438			return;
439		}
440}
441
442int
443esa_getdev(void *hdl, struct audio_device *ret)
444{
445
446	*ret = esa_device;
447
448	return (0);
449}
450
451int
452esa_set_port(void *hdl, mixer_ctrl_t *mc)
453{
454	struct esa_softc *sc = hdl;
455
456	return (sc->codec_if->vtbl->mixer_set_port(sc->codec_if, mc));
457}
458
459int
460esa_get_port(void *hdl, mixer_ctrl_t *mc)
461{
462	struct esa_softc *sc = hdl;
463
464	return (sc->codec_if->vtbl->mixer_get_port(sc->codec_if, mc));
465}
466
467int
468esa_query_devinfo(void *hdl, mixer_devinfo_t *di)
469{
470	struct esa_softc *sc = hdl;
471
472	return (sc->codec_if->vtbl->query_devinfo(sc->codec_if, di));
473}
474
475size_t
476esa_round_buffersize(void *hdl, int direction, size_t bufsize)
477{
478	struct esa_softc *sc = hdl;
479
480	sc->play.bufsize = sc->rec.bufsize = 65536;
481
482	return (sc->play.bufsize);
483}
484
485int
486esa_get_props(void *hdl)
487{
488
489	return (AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX);
490}
491
492int
493esa_trigger_output(void *hdl, void *start, void *end, int blksize,
494			void (*intr)(void *), void *intrarg,
495			struct audio_params *param)
496{
497	struct esa_softc *sc = hdl;
498	struct esa_dma *p;
499	bus_space_tag_t iot = sc->sc_iot;
500	bus_space_handle_t ioh = sc->sc_ioh;
501	u_int32_t data;
502	u_int32_t bufaddr;
503	u_int32_t i;
504	size_t size;
505	int data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
506			   (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
507			   (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255)
508			   &~ 255;
509	int dac_data = ESA_DAC_DATA + data_bytes;
510	int dsp_in_size = ESA_MINISRC_IN_BUFFER_SIZE - (0x20 * 2);
511	int dsp_out_size = ESA_MINISRC_OUT_BUFFER_SIZE - (0x20 * 2);
512	int dsp_in_buf = dac_data + (ESA_MINISRC_TMP_BUFFER_SIZE / 2);
513	int dsp_out_buf = dsp_in_buf + (dsp_in_size / 2) + 1;
514	sc->play.data_offset = dac_data;
515
516	if (sc->play.active)
517		return (EINVAL);
518
519	for (p = sc->sc_dmas; p && KERNADDR(p) != start; p = p->next)
520		;
521	if (!p) {
522		printf("%s: esa_trigger_output: bad addr %p\n",
523		    sc->sc_dev.dv_xname, start);
524		return (EINVAL);
525	}
526
527	sc->play.active = 1;
528	sc->play.intr = intr;
529	sc->play.arg = intrarg;
530	sc->play.pos = 0;
531	sc->play.count = 0;
532	sc->play.buf = start;
533	size = (size_t)(((caddr_t)end - (caddr_t)start));
534	bufaddr = DMAADDR(p);
535	sc->play.start = bufaddr;
536
537#define LO(x) ((x) & 0x0000ffff)
538#define HI(x) ((x) >> 16)
539
540	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
541	    ESA_CDATA_HOST_SRC_ADDRL, LO(bufaddr));
542	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
543	    ESA_CDATA_HOST_SRC_ADDRH, HI(bufaddr));
544	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
545	    ESA_CDATA_HOST_SRC_END_PLUS_1L, LO(bufaddr + size));
546	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
547	    ESA_CDATA_HOST_SRC_END_PLUS_1H, HI(bufaddr + size));
548	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
549	    ESA_CDATA_HOST_SRC_CURRENTL, LO(bufaddr));
550	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
551	    ESA_CDATA_HOST_SRC_CURRENTH, HI(bufaddr));
552
553	/* DSP buffers */
554	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
555	    ESA_CDATA_IN_BUF_BEGIN, dsp_in_buf);
556	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
557	    ESA_CDATA_IN_BUF_END_PLUS_1, dsp_in_buf + (dsp_in_size / 2));
558	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
559	    ESA_CDATA_IN_BUF_HEAD, dsp_in_buf);
560	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
561	    ESA_CDATA_IN_BUF_TAIL, dsp_in_buf);
562	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
563	    ESA_CDATA_OUT_BUF_BEGIN, dsp_out_buf);
564	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
565	    ESA_CDATA_OUT_BUF_END_PLUS_1, dsp_out_buf + (dsp_out_size / 2));
566	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
567	    ESA_CDATA_OUT_BUF_HEAD, dsp_out_buf);
568	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
569	    ESA_CDATA_OUT_BUF_TAIL, dsp_out_buf);
570
571	/* Some per-client initializers */
572	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
573	    ESA_SRC3_DIRECTION_OFFSET + 12, dac_data + 40 + 8);
574	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
575	    ESA_SRC3_DIRECTION_OFFSET + 19, 0x400 + ESA_MINISRC_COEF_LOC);
576	/* Enable or disable low-pass filter? (0xff if rate > 45000) */
577	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
578	    ESA_SRC3_DIRECTION_OFFSET + 22, 0);
579	/* Tell it which way DMA is going */
580	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
581	    ESA_CDATA_DMA_CONTROL,
582	    ESA_DMACONTROL_AUTOREPEAT + ESA_DMAC_PAGE3_SELECTOR +
583	    ESA_DMAC_BLOCKF_SELECTOR);
584
585	/* Set an armload of static initializers */
586	for (i = 0; i < (sizeof(esa_playvals) / sizeof(esa_playvals[0])); i++)
587		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
588		    esa_playvals[i].addr, esa_playvals[i].val);
589
590	/* Put us in the packed task lists */
591	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
592	    ESA_KDATA_INSTANCE0_MINISRC,
593	    dac_data >> ESA_DP_SHIFT_COUNT);
594	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_DMA_XFER0,
595	    dac_data >> ESA_DP_SHIFT_COUNT);
596	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_MIXER_XFER0,
597	    dac_data >> ESA_DP_SHIFT_COUNT);
598#undef LO
599#undef HI
600
601	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
602	    ESA_KDATA_TIMER_COUNT_RELOAD, 240);
603	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
604	    ESA_KDATA_TIMER_COUNT_CURRENT, 240);
605	data = bus_space_read_2(iot, ioh, ESA_HOST_INT_CTRL);
606	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
607	    data | ESA_CLKRUN_GEN_ENABLE);
608
609	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
610	    ESA_CDATA_INSTANCE_READY, 1);
611	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
612	    ESA_KDATA_MIXER_TASK_NUMBER, 1);
613
614	return (0);
615}
616
617int
618esa_trigger_input(void *hdl, void *start, void *end, int blksize,
619			void (*intr)(void *), void *intrarg,
620			struct audio_params *param)
621{
622	struct esa_softc *sc = hdl;
623	struct esa_dma *p;
624	bus_space_tag_t iot = sc->sc_iot;
625	bus_space_handle_t ioh = sc->sc_ioh;
626	u_int32_t data;
627	u_int32_t bufaddr;
628	u_int32_t i;
629	size_t size;
630	int data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
631			   (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
632			   (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255)
633			   &~ 255;
634	int adc_data = ESA_DAC_DATA + data_bytes + (data_bytes / 2);
635	int dsp_in_size = ESA_MINISRC_IN_BUFFER_SIZE - (0x10 * 2);
636	int dsp_out_size = ESA_MINISRC_OUT_BUFFER_SIZE - (0x10 * 2);
637	int dsp_in_buf = adc_data + (ESA_MINISRC_TMP_BUFFER_SIZE / 2);
638	int dsp_out_buf = dsp_in_buf + (dsp_in_size / 2) + 1;
639	sc->rec.data_offset = adc_data;
640
641	if (sc->rec.active)
642		return (EINVAL);
643
644	for (p = sc->sc_dmas; p && KERNADDR(p) != start; p = p->next)
645		;
646	if (!p) {
647		printf("%s: esa_trigger_input: bad addr %p\n",
648		    sc->sc_dev.dv_xname, start);
649		return (EINVAL);
650	}
651
652	sc->rec.active = 1;
653	sc->rec.intr = intr;
654	sc->rec.arg = intrarg;
655	sc->rec.pos = 0;
656	sc->rec.count = 0;
657	sc->rec.buf = start;
658	size = (size_t)(((caddr_t)end - (caddr_t)start));
659	bufaddr = DMAADDR(p);
660	sc->rec.start = bufaddr;
661
662#define LO(x) ((x) & 0x0000ffff)
663#define HI(x) ((x) >> 16)
664
665	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
666	    ESA_CDATA_HOST_SRC_ADDRL, LO(bufaddr));
667	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
668	    ESA_CDATA_HOST_SRC_ADDRH, HI(bufaddr));
669	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
670	    ESA_CDATA_HOST_SRC_END_PLUS_1L, LO(bufaddr + size));
671	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
672	    ESA_CDATA_HOST_SRC_END_PLUS_1H, HI(bufaddr + size));
673	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
674	    ESA_CDATA_HOST_SRC_CURRENTL, LO(bufaddr));
675	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
676	    ESA_CDATA_HOST_SRC_CURRENTH, HI(bufaddr));
677
678	/* DSP buffers */
679	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
680	    ESA_CDATA_IN_BUF_BEGIN, dsp_in_buf);
681	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
682	    ESA_CDATA_IN_BUF_END_PLUS_1, dsp_in_buf + (dsp_in_size / 2));
683	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
684	    ESA_CDATA_IN_BUF_HEAD, dsp_in_buf);
685	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
686	    ESA_CDATA_IN_BUF_TAIL, dsp_in_buf);
687	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
688	    ESA_CDATA_OUT_BUF_BEGIN, dsp_out_buf);
689	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
690	    ESA_CDATA_OUT_BUF_END_PLUS_1, dsp_out_buf + (dsp_out_size / 2));
691	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
692	    ESA_CDATA_OUT_BUF_HEAD, dsp_out_buf);
693	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
694	    ESA_CDATA_OUT_BUF_TAIL, dsp_out_buf);
695
696	/* Some per-client initializers */
697	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
698	    ESA_SRC3_DIRECTION_OFFSET + 12, adc_data + 40 + 8);
699	/* Tell it which way DMA is going */
700	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
701	    ESA_CDATA_DMA_CONTROL,
702	    ESA_DMACONTROL_DIRECTION + ESA_DMACONTROL_AUTOREPEAT +
703	    ESA_DMAC_PAGE3_SELECTOR + ESA_DMAC_BLOCKF_SELECTOR);
704
705	/* Set an armload of static initializers */
706	for (i = 0; i < (sizeof(esa_recvals) / sizeof(esa_recvals[0])); i++)
707		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
708		    esa_recvals[i].addr, esa_recvals[i].val);
709
710	/* Put us in the packed task lists */
711	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
712	    ESA_KDATA_INSTANCE0_MINISRC,
713	    adc_data >> ESA_DP_SHIFT_COUNT);
714	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_DMA_XFER0,
715	    adc_data >> ESA_DP_SHIFT_COUNT);
716	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_ADC1_XFER0,
717	    adc_data >> ESA_DP_SHIFT_COUNT);
718#undef LO
719#undef HI
720
721	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
722	    ESA_KDATA_TIMER_COUNT_RELOAD, 240);
723	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
724	    ESA_KDATA_TIMER_COUNT_CURRENT, 240);
725	data = bus_space_read_2(iot, ioh, ESA_HOST_INT_CTRL);
726	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
727	    data | ESA_CLKRUN_GEN_ENABLE);
728
729	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_ADC1_REQUEST, 1);
730	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
731	    ESA_CDATA_INSTANCE_READY, 1);
732
733	return (0);
734}
735
736/* Interrupt handler */
737
738int
739esa_intr(void *hdl)
740{
741	struct esa_softc *sc = hdl;
742	bus_space_tag_t iot = sc->sc_iot;
743	bus_space_handle_t ioh = sc->sc_ioh;
744	u_int32_t status, ctl;
745	u_int32_t pos;
746	u_int32_t diff;
747	u_int32_t play_blksize = sc->play.blksize;
748	u_int32_t play_bufsize = sc->play.bufsize;
749	u_int32_t rec_blksize = sc->rec.blksize;
750	u_int32_t rec_bufsize = sc->rec.bufsize;
751
752	status = bus_space_read_1(iot, ioh, ESA_HOST_INT_STATUS);
753	if (!status)
754		return (0);
755
756	/* ack the interrupt */
757	bus_space_write_1(iot, ioh, ESA_HOST_INT_STATUS, 0xff);
758
759	if (status & ESA_HV_INT_PENDING) {
760		u_int8_t event;
761
762		printf("%s: hardware volume interrupt\n", sc->sc_dev.dv_xname);
763		event = bus_space_read_1(iot, ioh, ESA_HW_VOL_COUNTER_MASTER);
764		switch(event) {
765		case 0x99:
766		case 0xaa:
767		case 0x66:
768		case 0x88:
769			printf("%s: esa_intr: FIXME\n", sc->sc_dev.dv_xname);
770			break;
771		default:
772			printf("%s: unknown hwvol event 0x%02x\n",
773			    sc->sc_dev.dv_xname, event);
774			break;
775		}
776		bus_space_write_1(iot, ioh, ESA_HW_VOL_COUNTER_MASTER, 0x88);
777	}
778
779	if (status & ESA_ASSP_INT_PENDING) {
780		ctl = bus_space_read_1(iot, ioh, ESA_ASSP_CONTROL_B);
781		if (!(ctl & ESA_STOP_ASSP_CLOCK)) {
782			ctl = bus_space_read_1(iot, ioh,
783					       ESA_ASSP_HOST_INT_STATUS);
784			if (ctl & ESA_DSP2HOST_REQ_TIMER) {
785				bus_space_write_1(iot, ioh,
786				    ESA_ASSP_HOST_INT_STATUS,
787				    ESA_DSP2HOST_REQ_TIMER);
788				if (sc->play.active) {
789					pos = esa_get_pointer(sc, &sc->play)
790					    % play_bufsize;
791					diff = (play_bufsize + pos - sc->play.pos)
792					    % play_bufsize;
793					sc->play.pos = pos;
794					sc->play.count += diff;
795					while(sc->play.count >= play_blksize) {
796						sc->play.count -= play_blksize;
797						(*sc->play.intr)(sc->play.arg);
798					}
799				}
800				if (sc->rec.active) {
801					pos = esa_get_pointer(sc, &sc->rec)
802					    % rec_bufsize;
803					diff = (rec_bufsize + pos - sc->rec.pos)
804					    % rec_bufsize;
805					sc->rec.pos = pos;
806					sc->rec.count += diff;
807					while(sc->rec.count >= rec_blksize) {
808						sc->rec.count -= rec_blksize;
809						(*sc->rec.intr)(sc->rec.arg);
810					}
811				}
812			}
813		}
814	}
815
816	return (1);
817}
818
819int
820esa_allocmem(struct esa_softc *sc, size_t size, size_t align,
821		struct esa_dma *p)
822{
823	int error;
824
825	p->size = size;
826	error = bus_dmamem_alloc(sc->sc_dmat, p->size, align, 0,
827				 p->segs, sizeof(p->segs) / sizeof(p->segs[0]),
828				 &p->nsegs, BUS_DMA_NOWAIT);
829	if (error)
830		return (error);
831
832	error = bus_dmamem_map(sc->sc_dmat, p->segs, p->nsegs, p->size,
833				&p->addr, BUS_DMA_NOWAIT | BUS_DMA_COHERENT);
834	if (error)
835		goto free;
836
837	error = bus_dmamap_create(sc->sc_dmat, p->size, 1, p->size, 0,
838				  BUS_DMA_NOWAIT, &p->map);
839	if (error)
840		goto unmap;
841
842	error = bus_dmamap_load(sc->sc_dmat, p->map, p->addr, p->size, NULL,
843				BUS_DMA_NOWAIT);
844	if (error)
845		goto destroy;
846
847	return (0);
848
849destroy:
850	bus_dmamap_destroy(sc->sc_dmat, p->map);
851unmap:
852	bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
853free:
854	bus_dmamem_free(sc->sc_dmat, p->segs, p->nsegs);
855
856	return (error);
857}
858
859int
860esa_freemem(struct esa_softc *sc, struct esa_dma *p)
861{
862
863	bus_dmamap_unload(sc->sc_dmat, p->map);
864	bus_dmamap_destroy(sc->sc_dmat, p->map);
865	bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
866	bus_dmamem_free(sc->sc_dmat, p->segs, p->nsegs);
867
868	return (0);
869}
870
871/*
872 * Supporting Subroutines
873 */
874
875int
876esa_match(struct device *dev, struct cfdata *match, void *aux)
877{
878	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
879
880	switch(PCI_VENDOR(pa->pa_id)) {
881	case PCI_VENDOR_ESSTECH:
882		switch(PCI_PRODUCT(pa->pa_id)) {
883		case PCI_PRODUCT_ESSTECH_ALLEGRO1:
884		case PCI_PRODUCT_ESSTECH_MAESTRO3:
885		case PCI_PRODUCT_ESSTECH_MAESTRO3_2:
886			return (1);
887		}
888	}
889
890	return (0);
891}
892
893void
894esa_attach(struct device *parent, struct device *self, void *aux)
895{
896	struct esa_softc *sc = (struct esa_softc *)self;
897	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
898	pcitag_t tag = pa->pa_tag;
899	pci_chipset_tag_t pc = pa->pa_pc;
900	pci_intr_handle_t ih;
901	struct esa_card_type *card;
902	const char *intrstr;
903	u_int32_t data;
904	char devinfo[256];
905	int revision, len;
906
907	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
908	revision = PCI_REVISION(pa->pa_class);
909	printf(": %s (rev. 0x%02x)\n", devinfo, revision);
910
911	for (card = esa_card_types; card->pci_vendor_id; card++)
912		if (PCI_VENDOR(pa->pa_id) == card->pci_vendor_id &&
913		    PCI_PRODUCT(pa->pa_id) == card->pci_product_id) {
914			sc->type = card->type;
915			sc->delay1 = card->delay1;
916			sc->delay2 = card->delay2;
917			break;
918		}
919
920	data = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
921	data |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE
922	    | PCI_COMMAND_MASTER_ENABLE);
923	pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, data);
924
925	/* Map I/O register */
926	if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
927	    &sc->sc_iot, &sc->sc_ioh, &sc->sc_iob, &sc->sc_ios)) {
928		printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
929		return;
930	}
931
932	/* Initialize softc */
933	sc->sc_tag = tag;
934	sc->sc_pct = pc;
935	sc->sc_dmat = pa->pa_dmat;
936
937	/* Map and establish an interrupt */
938	if (pci_intr_map(pa, &ih)) {
939		printf("%s: can't map interrupt\n", sc->sc_dev.dv_xname);
940		return;
941	}
942	intrstr = pci_intr_string(pc, ih);
943	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, esa_intr, self);
944	if (sc->sc_ih == NULL) {
945		printf("%s: can't establish interrupt", sc->sc_dev.dv_xname);
946		if (intrstr != NULL)
947			printf(" at %s", intrstr);
948		printf("\n");
949		return;
950	}
951	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
952
953	/* Power up chip */
954	esa_power(sc, PCI_PMCSR_STATE_D0);
955
956	/* Init chip */
957	if (esa_init(sc) == -1) {
958		printf("%s: esa_attach: unable to initialize the card\n",
959		    sc->sc_dev.dv_xname);
960		return;
961	}
962
963	/* create suspend save area */
964	len = sizeof(u_int16_t) * (ESA_REV_B_CODE_MEMORY_LENGTH
965	    + ESA_REV_B_DATA_MEMORY_LENGTH + 1);
966	sc->savemem = (u_int16_t *)malloc(len, M_DEVBUF, M_NOWAIT | M_ZERO);
967	if (sc->savemem == NULL) {
968		printf("%s: unable to allocate suspend buffer\n",
969		    sc->sc_dev.dv_xname);
970		return;
971	}
972
973	/*
974	 * Every card I've seen has had their channels swapped with respect
975	 * to the mixer. Ie:
976	 *  $ mixerctl -w outputs.master=0,191
977	 * Would result in the _right_ speaker being turned off.
978	 *
979	 * So, we will swap the left and right mixer channels to compensate
980	 * for this.
981	 */
982	sc->codec_flags |= AC97_HOST_SWAPPED_CHANNELS;
983	sc->codec_flags |= AC97_HOST_DONT_READ;
984
985	/* Attach AC97 host interface */
986	sc->host_if.arg = self;
987	sc->host_if.attach = esa_attach_codec;
988	sc->host_if.read = esa_read_codec;
989	sc->host_if.write = esa_write_codec;
990	sc->host_if.reset = esa_reset_codec;
991	sc->host_if.flags = esa_flags_codec;
992
993	if (ac97_attach(&sc->host_if) != 0)
994		return;
995
996	sc->sc_audiodev = audio_attach_mi(&esa_hw_if, self, &sc->sc_dev);
997
998	sc->powerhook = powerhook_establish(esa_powerhook, sc);
999	if (sc->powerhook == NULL)
1000		printf("%s: WARNING: unable to establish powerhook\n",
1001		    sc->sc_dev.dv_xname);
1002
1003	return;
1004}
1005
1006int
1007esa_detach(struct device *self, int flags)
1008{
1009	struct esa_softc *sc = (struct esa_softc *)self;
1010	int rv = 0;
1011
1012	if (sc->sc_audiodev != NULL)
1013		rv = config_detach(sc->sc_audiodev, flags);
1014	if (rv)
1015		return (rv);
1016
1017	if (sc->sc_ih != NULL)
1018		pci_intr_disestablish(sc->sc_pct, sc->sc_ih);
1019	if (sc->sc_ios)
1020		bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
1021
1022	return (0);
1023}
1024
1025u_int16_t
1026esa_read_assp(struct esa_softc *sc, u_int16_t region, u_int16_t index)
1027{
1028	u_int16_t data;
1029	bus_space_tag_t iot = sc->sc_iot;
1030	bus_space_handle_t ioh = sc->sc_ioh;
1031
1032	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_TYPE,
1033	    region & ESA_MEMTYPE_MASK);
1034	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_INDEX, index);
1035	data = bus_space_read_2(iot, ioh, ESA_DSP_PORT_MEMORY_DATA);
1036
1037	return (data);
1038}
1039
1040void
1041esa_write_assp(struct esa_softc *sc, u_int16_t region, u_int16_t index,
1042		u_int16_t data)
1043{
1044	bus_space_tag_t iot = sc->sc_iot;
1045	bus_space_handle_t ioh = sc->sc_ioh;
1046
1047	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_TYPE,
1048	    region & ESA_MEMTYPE_MASK);
1049	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_INDEX, index);
1050	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_DATA, data);
1051
1052	return;
1053}
1054
1055int
1056esa_init_codec(struct esa_softc *sc)
1057{
1058	bus_space_tag_t iot = sc->sc_iot;
1059	bus_space_handle_t ioh = sc->sc_ioh;
1060	u_int32_t data;
1061
1062	data = bus_space_read_1(iot, ioh, ESA_CODEC_COMMAND);
1063
1064	return ((data & 0x1) ? 0 : 1);
1065}
1066
1067int
1068esa_attach_codec(void *aux, struct ac97_codec_if *codec_if)
1069{
1070	struct esa_softc *sc = aux;
1071
1072	sc->codec_if = codec_if;
1073
1074	return (0);
1075}
1076
1077int
1078esa_read_codec(void *aux, u_int8_t reg, u_int16_t *result)
1079{
1080	struct esa_softc *sc = aux;
1081	bus_space_tag_t iot = sc->sc_iot;
1082	bus_space_handle_t ioh = sc->sc_ioh;
1083
1084	if (esa_wait(sc))
1085		printf("%s: esa_read_codec: timed out\n", sc->sc_dev.dv_xname);
1086	bus_space_write_1(iot, ioh, ESA_CODEC_COMMAND, (reg & 0x7f) | 0x80);
1087	delay(50);
1088	if (esa_wait(sc))
1089		printf("%s: esa_read_codec: timed out\n", sc->sc_dev.dv_xname);
1090	*result = bus_space_read_2(iot, ioh, ESA_CODEC_DATA);
1091
1092	return (0);
1093}
1094
1095int
1096esa_write_codec(void *aux, u_int8_t reg, u_int16_t data)
1097{
1098	struct esa_softc *sc = aux;
1099	bus_space_tag_t iot = sc->sc_iot;
1100	bus_space_handle_t ioh = sc->sc_ioh;
1101
1102	if (esa_wait(sc)) {
1103		printf("%s: esa_write_codec: timed out\n", sc->sc_dev.dv_xname);
1104		return (-1);
1105	}
1106	bus_space_write_2(iot, ioh, ESA_CODEC_DATA, data);
1107	bus_space_write_1(iot, ioh, ESA_CODEC_COMMAND, reg & 0x7f);
1108	delay(50);
1109
1110	return (0);
1111}
1112
1113void
1114esa_reset_codec(void *aux)
1115{
1116
1117	return;
1118}
1119
1120enum ac97_host_flags
1121esa_flags_codec(void *aux)
1122{
1123	struct esa_softc *sc = aux;
1124
1125	return (sc->codec_flags);
1126}
1127
1128int
1129esa_wait(struct esa_softc *sc)
1130{
1131	int i, val;
1132	bus_space_tag_t iot = sc->sc_iot;
1133	bus_space_handle_t ioh = sc->sc_ioh;
1134
1135	for (i = 0; i < 20; i++) {
1136		val = bus_space_read_1(iot, ioh, ESA_CODEC_STATUS);
1137		if ((val & 1) == 0)
1138			return (0);
1139		delay(2);
1140	}
1141
1142	return (-1);
1143}
1144
1145int
1146esa_init(struct esa_softc *sc)
1147{
1148	bus_space_tag_t iot = sc->sc_iot;
1149	bus_space_handle_t ioh = sc->sc_ioh;
1150	pcitag_t tag = sc->sc_tag;
1151	pci_chipset_tag_t pc = sc->sc_pct;
1152	u_int32_t data, i, size;
1153	u_int8_t reset_state;
1154	int data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
1155			   (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
1156			   (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255)
1157			   &~ 255;
1158
1159	/* Disable legacy emulation */
1160	data = pci_conf_read(pc, tag, PCI_LEGACY_AUDIO_CTRL);
1161	data |= DISABLE_LEGACY;
1162	pci_conf_write(pc, tag, PCI_LEGACY_AUDIO_CTRL, data);
1163
1164	esa_config(sc);
1165
1166	reset_state = esa_assp_halt(sc);
1167
1168	esa_init_codec(sc);
1169	esa_codec_reset(sc);
1170
1171	/* Zero kernel and mixer data */
1172	size = ESA_REV_B_DATA_MEMORY_UNIT_LENGTH * ESA_NUM_UNITS_KERNEL_DATA;
1173	for (i = 0; i < size / 2; i++) {
1174		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1175		    ESA_KDATA_BASE_ADDR + i, 0);
1176		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1177		    ESA_KDATA_BASE_ADDR2 + i, 0);
1178	}
1179
1180	/* Init DMA pointer */
1181	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_CURRENT_DMA,
1182	    ESA_KDATA_DMA_XFER0);
1183
1184	/* Write kernel code into memory */
1185	size = sizeof(esa_assp_kernel_image);
1186	for (i = 0; i < size / 2; i++)
1187		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
1188		    ESA_REV_B_CODE_MEMORY_BEGIN + i, esa_assp_kernel_image[i]);
1189
1190	size = sizeof(esa_assp_minisrc_image);
1191	for (i = 0; i < size / 2; i++)
1192		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE, 0x400 + i,
1193		    esa_assp_minisrc_image[i]);
1194
1195	/* Write the coefficients for the low pass filter */
1196	size = sizeof(esa_minisrc_lpf_image);
1197	for (i = 0; i < size / 2; i++)
1198		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
1199		    0x400 + ESA_MINISRC_COEF_LOC + i, esa_minisrc_lpf_image[i]);
1200	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
1201	    0x400 + ESA_MINISRC_COEF_LOC + size, 0x8000);
1202	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_TASK0, 0x400);
1203	/* Init the mixer number */
1204	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1205             ESA_KDATA_MIXER_TASK_NUMBER, 0);
1206	/* Extreme kernel master volume */
1207	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_DAC_LEFT_VOLUME,
1208	    ESA_ARB_VOLUME);
1209	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1210            ESA_KDATA_DAC_RIGHT_VOLUME, ESA_ARB_VOLUME);
1211
1212	if (esa_amp_enable(sc))
1213		return (-1);
1214
1215	/* Zero entire DAC/ADC area */
1216	for (i = 0x1100; i < 0x1c00; i++)
1217		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, i, 0);
1218
1219	/* set some sane defaults */
1220	sc->play.data_offset = ESA_DAC_DATA + data_bytes;
1221	sc->rec.data_offset = ESA_DAC_DATA + data_bytes + (data_bytes / 2);
1222
1223	esa_enable_interrupts(sc);
1224
1225	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
1226	    reset_state | ESA_REGB_ENABLE_RESET);
1227
1228	return (0);
1229}
1230
1231void
1232esa_config(struct esa_softc *sc)
1233{
1234	bus_space_tag_t iot = sc->sc_iot;
1235	bus_space_handle_t ioh = sc->sc_ioh;
1236	pcitag_t tag = sc->sc_tag;
1237	pci_chipset_tag_t pc = sc->sc_pct;
1238	u_int32_t data;
1239
1240	data = pci_conf_read(pc, tag, ESA_PCI_ALLEGRO_CONFIG);
1241	data &= ESA_REDUCED_DEBOUNCE;
1242	data |= ESA_PM_CTRL_ENABLE | ESA_CLK_DIV_BY_49 | ESA_USE_PCI_TIMING;
1243	pci_conf_write(pc, tag, ESA_PCI_ALLEGRO_CONFIG, data);
1244
1245	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_B, ESA_RESET_ASSP);
1246	data = pci_conf_read(pc, tag, ESA_PCI_ALLEGRO_CONFIG);
1247	data &= ~ESA_INT_CLK_SELECT;
1248	if (sc->type == ESS_MAESTRO3) {
1249		data &= ~ESA_INT_CLK_MULT_ENABLE;
1250		data |= ESA_INT_CLK_SRC_NOT_PCI;
1251	}
1252	data &= ~(ESA_CLK_MULT_MODE_SELECT | ESA_CLK_MULT_MODE_SELECT_2);
1253	pci_conf_write(pc, tag, ESA_PCI_ALLEGRO_CONFIG, data);
1254
1255	if (sc->type == ESS_ALLEGRO1) {
1256		data = pci_conf_read(pc, tag, ESA_PCI_USER_CONFIG);
1257		data |= ESA_IN_CLK_12MHZ_SELECT;
1258		pci_conf_write(pc, tag, ESA_PCI_USER_CONFIG, data);
1259	}
1260
1261	data = bus_space_read_1(iot, ioh, ESA_ASSP_CONTROL_A);
1262	data &= ~(ESA_DSP_CLK_36MHZ_SELECT | ESA_ASSP_CLK_49MHZ_SELECT);
1263	data |= ESA_ASSP_CLK_49MHZ_SELECT;	/* XXX: Assumes 49MHz DSP */
1264	data |= ESA_ASSP_0_WS_ENABLE;
1265	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_A, data);
1266
1267	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_B, ESA_RUN_ASSP);
1268
1269	return;
1270}
1271
1272u_int8_t
1273esa_assp_halt(struct esa_softc *sc)
1274{
1275	bus_space_tag_t iot = sc->sc_iot;
1276	bus_space_handle_t ioh = sc->sc_ioh;
1277	u_int8_t data, reset_state;
1278
1279	data = bus_space_read_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B);
1280	reset_state = data & ~ESA_REGB_STOP_CLOCK;
1281	delay(10000);		/* XXX use tsleep */
1282	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
1283			reset_state & ~ESA_REGB_ENABLE_RESET);
1284	delay(10000);		/* XXX use tsleep */
1285
1286	return (reset_state);
1287}
1288
1289void
1290esa_codec_reset(struct esa_softc *sc)
1291{
1292	bus_space_tag_t iot = sc->sc_iot;
1293	bus_space_handle_t ioh = sc->sc_ioh;
1294	u_int16_t data, dir;
1295	int retry = 0;
1296
1297	do {
1298		data = bus_space_read_2(iot, ioh, ESA_GPIO_DIRECTION);
1299		dir = data | 0x10; /* assuming pci bus master? */
1300
1301		/* remote codec config */
1302		data = bus_space_read_2(iot, ioh, ESA_RING_BUS_CTRL_B);
1303		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_B,
1304		    data & ~ESA_SECOND_CODEC_ID_MASK);
1305		data = bus_space_read_2(iot, ioh, ESA_SDO_OUT_DEST_CTRL);
1306		bus_space_write_2(iot, ioh, ESA_SDO_OUT_DEST_CTRL,
1307		    data & ~ESA_COMMAND_ADDR_OUT);
1308		data = bus_space_read_2(iot, ioh, ESA_SDO_IN_DEST_CTRL);
1309		bus_space_write_2(iot, ioh, ESA_SDO_IN_DEST_CTRL,
1310		    data & ~ESA_STATUS_ADDR_IN);
1311
1312		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_A,
1313				  ESA_IO_SRAM_ENABLE);
1314		delay(20);
1315
1316		bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION,
1317		    dir & ~ESA_GPO_PRIMARY_AC97);
1318		bus_space_write_2(iot, ioh, ESA_GPIO_MASK,
1319				  ~ESA_GPO_PRIMARY_AC97);
1320		bus_space_write_2(iot, ioh, ESA_GPIO_DATA, 0);
1321		bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION,
1322		    dir | ESA_GPO_PRIMARY_AC97);
1323		delay(sc->delay1 * 1000);
1324		bus_space_write_2(iot, ioh, ESA_GPIO_DATA,
1325				  ESA_GPO_PRIMARY_AC97);
1326		delay(5);
1327		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_A,
1328		    ESA_IO_SRAM_ENABLE | ESA_SERIAL_AC_LINK_ENABLE);
1329		bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~0);
1330		delay(sc->delay2 * 1000);
1331
1332		esa_read_codec(sc, 0x7c, &data);
1333		if ((data == 0) || (data == 0xffff)) {
1334			retry++;
1335			if (retry > 3) {
1336				printf("%s: esa_codec_reset: failed\n",
1337				    sc->sc_dev.dv_xname);
1338				break;
1339			}
1340			printf("%s: esa_codec_reset: retrying\n",
1341			    sc->sc_dev.dv_xname);
1342		} else
1343			retry = 0;
1344	} while (retry);
1345
1346	return;
1347}
1348
1349int
1350esa_amp_enable(struct esa_softc *sc)
1351{
1352	bus_space_tag_t iot = sc->sc_iot;
1353	bus_space_handle_t ioh = sc->sc_ioh;
1354	u_int32_t gpo, polarity_port, polarity;
1355	u_int16_t data;
1356
1357	switch (sc->type) {
1358	case ESS_ALLEGRO1:
1359		polarity_port = 0x1800;
1360		break;
1361	case ESS_MAESTRO3:
1362		polarity_port = 0x1100;
1363		break;
1364	default:
1365		printf("%s: esa_amp_enable: Unknown chip type!!!\n",
1366		    sc->sc_dev.dv_xname);
1367		return (1);
1368	}
1369
1370	gpo = (polarity_port >> 8) & 0x0f;
1371	polarity = polarity_port >> 12;
1372	polarity = !polarity;	/* Enable */
1373	polarity = polarity << gpo;
1374	gpo = 1 << gpo;
1375	bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~gpo);
1376	data = bus_space_read_2(iot, ioh, ESA_GPIO_DIRECTION);
1377	bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION, data | gpo);
1378	data = ESA_GPO_SECONDARY_AC97 | ESA_GPO_PRIMARY_AC97 | polarity;
1379	bus_space_write_2(iot, ioh, ESA_GPIO_DATA, data);
1380	bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~0);
1381
1382	return (0);
1383}
1384
1385void
1386esa_enable_interrupts(struct esa_softc *sc)
1387{
1388	bus_space_tag_t iot = sc->sc_iot;
1389	bus_space_handle_t ioh = sc->sc_ioh;
1390	u_int8_t data;
1391
1392	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
1393	    ESA_ASSP_INT_ENABLE | ESA_HV_INT_ENABLE);
1394	data = bus_space_read_1(iot, ioh, ESA_ASSP_CONTROL_C);
1395	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_C,
1396	    data | ESA_ASSP_HOST_INT_ENABLE);
1397}
1398
1399int
1400esa_power(struct esa_softc *sc, int state)
1401{
1402	pcitag_t tag = sc->sc_tag;
1403	pci_chipset_tag_t pc = sc->sc_pct;
1404	pcireg_t data;
1405	int pmcapreg;
1406
1407	if (pci_get_capability(pc, tag, PCI_CAP_PWRMGMT, &pmcapreg, 0)) {
1408		data = pci_conf_read(pc, tag, pmcapreg + 4);
1409		if ((data && PCI_PMCSR_STATE_MASK) != state)
1410			pci_conf_write(pc, tag, pmcapreg + 4, state);
1411	}
1412
1413	return (0);
1414}
1415
1416void
1417esa_powerhook(int why, void *hdl)
1418{
1419	struct esa_softc *sc = (struct esa_softc *)hdl;
1420
1421	switch (why) {
1422	case PWR_SUSPEND:
1423	case PWR_STANDBY:
1424		esa_suspend(sc);
1425		break;
1426	case PWR_RESUME:
1427		esa_resume(sc);
1428		(sc->codec_if->vtbl->restore_ports)(sc->codec_if);
1429		break;
1430	}
1431}
1432
1433int
1434esa_suspend(struct esa_softc *sc)
1435{
1436	bus_space_tag_t iot = sc->sc_iot;
1437	bus_space_handle_t ioh = sc->sc_ioh;
1438	int x, i, index;
1439
1440	index = 0;
1441
1442	x = splaudio();
1443	esa_halt_output(sc);
1444	delay(10000);
1445	splx(x);
1446
1447	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL, 0);
1448	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_C, 0);
1449
1450	esa_assp_halt(sc);
1451
1452	/* Save ASSP state */
1453	for (i = ESA_REV_B_CODE_MEMORY_BEGIN; i <= ESA_REV_B_CODE_MEMORY_END;
1454	    i++)
1455		sc->savemem[index++] = esa_read_assp(sc,
1456		    ESA_MEMTYPE_INTERNAL_CODE, i);
1457	for (i = ESA_REV_B_DATA_MEMORY_BEGIN; i <= ESA_REV_B_DATA_MEMORY_END;
1458	    i++)
1459		sc->savemem[index++] = esa_read_assp(sc,
1460		    ESA_MEMTYPE_INTERNAL_DATA, i);
1461
1462	esa_power(sc, PCI_PMCSR_STATE_D3);
1463
1464	return (0);
1465}
1466
1467int
1468esa_resume(struct esa_softc *sc) {
1469	bus_space_tag_t iot = sc->sc_iot;
1470	bus_space_handle_t ioh = sc->sc_ioh;
1471	int i, index;
1472	u_int8_t reset_state;
1473
1474	index = 0;
1475
1476	esa_power(sc, PCI_PMCSR_STATE_D0);
1477	delay(10000);
1478
1479	esa_config(sc);
1480
1481	reset_state = esa_assp_halt(sc);
1482
1483	/* restore ASSP */
1484	for (i = ESA_REV_B_CODE_MEMORY_BEGIN; i <= ESA_REV_B_CODE_MEMORY_END;
1485	    i++)
1486		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE, i,
1487		    sc->savemem[index++]);
1488	for (i = ESA_REV_B_DATA_MEMORY_BEGIN; i <= ESA_REV_B_DATA_MEMORY_END;
1489	    i++)
1490		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, i,
1491		    sc->savemem[index++]);
1492
1493	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_DMA_ACTIVE, 0);
1494	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
1495	    reset_state | ESA_REGB_ENABLE_RESET);
1496
1497	esa_enable_interrupts(sc);
1498	esa_amp_enable(sc);
1499
1500	return (0);
1501}
1502
1503u_int32_t
1504esa_get_pointer(struct esa_softc *sc, struct esa_channel *ch)
1505{
1506	u_int16_t hi = 0, lo = 0;
1507	u_int32_t addr;
1508	int data_offset = ch->data_offset;
1509
1510	hi = esa_read_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, data_offset +
1511	    ESA_CDATA_HOST_SRC_CURRENTH);
1512	lo = esa_read_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, data_offset +
1513	    ESA_CDATA_HOST_SRC_CURRENTL);
1514
1515	addr = lo | ((u_int32_t)hi << 16);
1516	return (addr - ch->start);
1517}
1518
1519paddr_t
1520esa_mappage(void *addr, void *mem, off_t off, int prot)
1521{
1522	struct esa_softc *sc = addr;
1523	struct esa_dma *p;
1524
1525	if (off < 0)
1526		return (-1);
1527	for (p = sc->sc_dmas; p && KERNADDR(p) != mem; p = p->next)
1528		;
1529	if (!p)
1530		return (-1);
1531	return (bus_dmamem_mmap(sc->sc_dmat, p->segs, p->nsegs,
1532				off, prot, BUS_DMA_WAITOK));
1533}
1534