esa.c revision 1.4
1/* $NetBSD: esa.c,v 1.4 2002/01/13 10:06:51 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
60#include <dev/pci/esareg.h>
61#include <dev/pci/esadsp.h>
62#include <dev/pci/esavar.h>
63
64#define PCI_CBIO	0x10
65
66#define ESA_DAC_DATA	0x1100
67
68enum {
69	ESS_ALLEGRO1,
70	ESS_MAESTRO3
71};
72
73static struct esa_card_type {
74	u_int16_t pci_vendor_id;
75	u_int16_t pci_product_id;
76	int type;
77	int delay1, delay2;
78} esa_card_types[] = {
79	{ PCI_VENDOR_ESSTECH, PCI_PRODUCT_ESSTECH_ALLEGRO1,
80	  ESS_ALLEGRO1, 50, 800 },
81	{ PCI_VENDOR_ESSTECH, PCI_PRODUCT_ESSTECH_MAESTRO3,
82	  ESS_MAESTRO3, 20, 500 },
83	{ PCI_VENDOR_ESSTECH, PCI_PRODUCT_ESSTECH_MAESTRO3_2,
84	  ESS_MAESTRO3, 20, 500 },
85	{ 0, 0, 0, 0, 0 }
86};
87
88struct audio_device esa_device = {
89	"ESS Allegro",
90	"",
91	"esa"
92};
93
94int		esa_match(struct device *, struct cfdata *, void *);
95void		esa_attach(struct device *, struct device *, void *);
96int		esa_detach(struct device *, int);
97
98/* audio(9) functions */
99int		esa_open(void *, int);
100void		esa_close(void *);
101int		esa_query_encoding(void *, struct audio_encoding *);
102int		esa_set_params(void *, int, int, struct audio_params *,
103			       struct audio_params *);
104int		esa_round_blocksize(void *, int);
105int		esa_init_output(void *, void *, int);
106int		esa_halt_output(void *);
107int		esa_halt_input(void *);
108int		esa_set_port(void *, mixer_ctrl_t *);
109int		esa_get_port(void *, mixer_ctrl_t *);
110int		esa_query_devinfo(void *, mixer_devinfo_t *);
111void *		esa_malloc(void *, int, size_t, int, int);
112void		esa_free(void *, void *, int);
113int		esa_getdev(void *, struct audio_device *);
114size_t		esa_round_buffersize(void *, int, size_t);
115int		esa_get_props(void *);
116int		esa_trigger_output(void *, void *, void *, int,
117				   void (*)(void *), void *,
118				   struct audio_params *);
119int		esa_trigger_input(void *, void *, void *, int,
120				  void (*)(void *), void *,
121				  struct audio_params *);
122
123int		esa_intr(void *);
124int		esa_allocmem(struct esa_softc *, size_t, size_t,
125			     struct esa_dma *);
126int		esa_freemem(struct esa_softc *, struct esa_dma *);
127paddr_t		esa_mappage(void *addr, void *mem, off_t off, int prot);
128
129/* Supporting subroutines */
130u_int16_t	esa_read_assp(struct esa_softc *, u_int16_t, u_int16_t);
131void		esa_write_assp(struct esa_softc *, u_int16_t, u_int16_t,
132			       u_int16_t);
133int		esa_init_codec(struct esa_softc *);
134int		esa_attach_codec(void *, struct ac97_codec_if *);
135int		esa_read_codec(void *, u_int8_t, u_int16_t *);
136int		esa_write_codec(void *, u_int8_t, u_int16_t);
137void		esa_reset_codec(void *);
138enum ac97_host_flags	esa_flags_codec(void *);
139int		esa_wait(struct esa_softc *);
140int		esa_init(struct esa_softc *);
141void		esa_config(struct esa_softc *);
142u_int8_t	esa_assp_halt(struct esa_softc *);
143void		esa_codec_reset(struct esa_softc *);
144int		esa_amp_enable(struct esa_softc *);
145void		esa_enable_interrupts(struct esa_softc *);
146u_int32_t	esa_get_pointer(struct esa_softc *, struct esa_channel *);
147
148/* power management */
149int		esa_power(struct esa_softc *, int);
150void		esa_powerhook(int, void *);
151int		esa_suspend(struct esa_softc *);
152int		esa_resume(struct esa_softc *);
153
154struct device *	audio_attach_mi_lkm(struct audio_hw_if *, void *,
155				    struct device *);
156
157static audio_encoding_t esa_encoding[] = {
158	{ 0, AudioEulinear, AUDIO_ENCODING_ULINEAR, 8, 0 },
159	{ 1, AudioEmulaw, AUDIO_ENCODING_ULAW, 8,
160		AUDIO_ENCODINGFLAG_EMULATED },
161	{ 2, AudioEalaw, AUDIO_ENCODING_ALAW, 8, AUDIO_ENCODINGFLAG_EMULATED },
162	{ 3, AudioEslinear, AUDIO_ENCODING_SLINEAR, 8,
163		AUDIO_ENCODINGFLAG_EMULATED }, /* XXX: Are you sure? */
164	{ 4, AudioEslinear_le, AUDIO_ENCODING_SLINEAR_LE, 16, 0 },
165	{ 5, AudioEulinear_le, AUDIO_ENCODING_ULINEAR_LE, 16,
166		AUDIO_ENCODINGFLAG_EMULATED },
167	{ 6, AudioEslinear_be, AUDIO_ENCODING_SLINEAR_BE, 16,
168		AUDIO_ENCODINGFLAG_EMULATED },
169	{ 7, AudioEulinear_be, AUDIO_ENCODING_ULINEAR_BE, 16,
170		AUDIO_ENCODINGFLAG_EMULATED }
171};
172
173#define ESA_NENCODINGS 8
174
175struct audio_hw_if esa_hw_if = {
176	esa_open,
177	esa_close,
178	NULL,			/* drain */
179	esa_query_encoding,
180	esa_set_params,
181	esa_round_blocksize,
182	NULL,			/* commit_settings */
183	esa_init_output,
184	NULL,			/* esa_init_input */
185	NULL,			/* start_output */
186	NULL,			/* start_input */
187	esa_halt_output,
188	esa_halt_input,
189	NULL,			/* speaker_ctl */
190	esa_getdev,
191	NULL,			/* getfd */
192	esa_set_port,
193	esa_get_port,
194	esa_query_devinfo,
195	esa_malloc,
196	esa_free,
197	esa_round_buffersize,
198	esa_mappage,
199	esa_get_props,
200	esa_trigger_output,
201	esa_trigger_input
202};
203
204struct cfattach esa_ca = {
205	sizeof(struct esa_softc), esa_match, esa_attach,
206	esa_detach, /*esa_activate*/ NULL
207};
208
209/*
210 * audio(9) functions
211 */
212
213int
214esa_open(void *hdl, int flags)
215{
216
217	return (0);
218}
219
220void
221esa_close(void *hdl)
222{
223
224	return;
225}
226
227int
228esa_query_encoding(void *hdl, struct audio_encoding *ae)
229{
230
231	if (ae->index < 0 || ae->index >= ESA_NENCODINGS)
232		return (EINVAL);
233	*ae = esa_encoding[ae->index];
234
235	return (0);
236}
237
238int
239esa_set_params(void *hdl, int setmode, int usemode, struct audio_params *play,
240	       struct audio_params *rec)
241{
242	struct esa_softc *sc = hdl;
243	struct esa_channel *ch;
244	struct audio_params *p;
245	u_int32_t data;
246	u_int32_t freq;
247	int mode;
248
249	for (mode = AUMODE_RECORD; mode != -1;
250	     mode = (mode == AUMODE_RECORD) ? AUMODE_PLAY : -1) {
251		if ((setmode & mode) == 0)
252			continue;
253
254		switch (mode) {
255		case AUMODE_PLAY:
256			p = play;
257			ch = &sc->play;
258			break;
259		case AUMODE_RECORD:
260			p = rec;
261			ch = &sc->rec;
262			break;
263		}
264
265		if (p->sample_rate < ESA_MINRATE ||
266		    p->sample_rate > ESA_MAXRATE ||
267		    (p->precision != 8 && p->precision != 16) ||
268		    (p->channels < 1 && p->channels > 2))
269			return (EINVAL);
270
271		p->factor = 1;
272		p->sw_code = 0;
273
274		switch(p->encoding) {
275		case AUDIO_ENCODING_SLINEAR_BE:
276			if (p->precision == 16)
277				p->sw_code = swap_bytes;
278			else
279				p->sw_code = change_sign8;
280			break;
281		case AUDIO_ENCODING_SLINEAR_LE:
282			if (p->precision != 16)
283				p->sw_code = change_sign8;
284			break;
285		case AUDIO_ENCODING_ULINEAR_BE:
286			if (p->precision == 16) {
287				if (mode == AUMODE_PLAY)
288					p->sw_code =
289					    swap_bytes_change_sign16_le;
290				else
291					p->sw_code =
292					    change_sign16_swap_bytes_le;
293			}
294			break;
295		case AUDIO_ENCODING_ULINEAR_LE:
296			if (p->precision == 16)
297				p->sw_code = change_sign16_le;
298			break;
299		case AUDIO_ENCODING_ULAW:
300			if (mode == AUMODE_PLAY) {
301				p->factor = 2;
302				p->sw_code = mulaw_to_slinear16_le;
303			} else
304				p->sw_code = ulinear8_to_mulaw;
305			break;
306		case AUDIO_ENCODING_ALAW:
307			if (mode == AUMODE_PLAY) {
308				p->factor = 2;
309				p->sw_code = alaw_to_slinear16_le;
310			} else
311				p->sw_code = ulinear8_to_alaw;
312			break;
313		default:
314			return (EINVAL);
315		}
316
317		if (p->channels == 1)
318			data = 1;
319		else
320			data = 0;
321		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
322			       ch->data_offset + ESA_SRC3_MODE_OFFSET,
323		    data);
324
325		if (play->precision * play->factor == 8)
326			data = 1;
327		else
328			data = 0;
329		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
330			       ch->data_offset + ESA_SRC3_WORD_LENGTH_OFFSET,
331			       data);
332
333		if ((freq = ((p->sample_rate << 15) + 24000) / 48000) != 0) {
334			freq--;
335		}
336		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
337			       ch->data_offset + ESA_CDATA_FREQUENCY, freq);
338	}
339
340	return (0);
341}
342
343int
344esa_round_blocksize(void *hdl, int bs)
345{
346	struct esa_softc *sc = hdl;
347
348	sc->play.blksize = sc->rec.blksize = 4096;
349
350	return (sc->play.blksize);
351}
352
353int
354esa_init_output(void *hdl, void *buffer, int size)
355{
356
357	return (0);
358}
359
360int
361esa_halt_output(void *hdl)
362{
363	struct esa_softc *sc = hdl;
364
365	if (sc->play.active == 0)
366		return (0);
367
368	sc->play.active = 0;
369
370	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
371		       ESA_KDATA_INSTANCE0_MINISRC, 0);
372	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_DMA_XFER0, 0);
373	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_MIXER_XFER0, 0);
374
375	return (0);
376}
377
378int
379esa_halt_input(void *hdl)
380{
381	struct esa_softc *sc = hdl;
382	bus_space_tag_t iot = sc->sc_iot;
383	bus_space_handle_t ioh = sc->sc_ioh;
384	u_int32_t data;
385
386	if (sc->rec.active == 0)
387		return (0);
388
389	sc->rec.active = 0;
390
391	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
392		       ESA_KDATA_TIMER_COUNT_RELOAD, 0);
393	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_TIMER_COUNT_CURRENT, 0);
394	data = bus_space_read_2(iot, ioh, ESA_HOST_INT_CTRL);
395	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL, data & ~ESA_CLKRUN_GEN_ENABLE);
396
397	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, sc->rec.data_offset +
398		       ESA_CDATA_INSTANCE_READY, 0);
399	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_ADC1_REQUEST, 0);
400
401	return (0);
402}
403
404void *
405esa_malloc(void *hdl, int direction, size_t size, int type, int flags)
406{
407	struct esa_softc *sc = hdl;
408	struct esa_dma *p;
409	int error;
410
411	p = malloc(sizeof(*p), type, flags);
412	if (!p)
413		return (0);
414	error = esa_allocmem(sc, size, 16, p);
415	if (error) {
416		free(p, type);
417		printf("%s: esa_malloc: not enough memory\n",
418		    sc->sc_dev.dv_xname);
419		return (0);
420	}
421	p->next = sc->sc_dmas;
422	sc->sc_dmas = p;
423
424	return (KERNADDR(p));
425}
426
427void
428esa_free(void *hdl, void *addr, int type)
429{
430	struct esa_softc *sc = hdl;
431	struct esa_dma *p;
432	struct esa_dma **pp;
433
434	for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next)
435		if (KERNADDR(p) == addr) {
436			esa_freemem(sc, p);
437			*pp = p->next;
438			free(p, type);
439			return;
440		}
441}
442
443int
444esa_getdev(void *hdl, struct audio_device *ret)
445{
446
447	*ret = esa_device;
448
449	return (0);
450}
451
452int
453esa_set_port(void *hdl, mixer_ctrl_t *mc)
454{
455	struct esa_softc *sc = hdl;
456
457	return (sc->codec_if->vtbl->mixer_set_port(sc->codec_if, mc));
458}
459
460int
461esa_get_port(void *hdl, mixer_ctrl_t *mc)
462{
463	struct esa_softc *sc = hdl;
464
465	return (sc->codec_if->vtbl->mixer_get_port(sc->codec_if, mc));
466}
467
468int
469esa_query_devinfo(void *hdl, mixer_devinfo_t *di)
470{
471	struct esa_softc *sc = hdl;
472
473	return (sc->codec_if->vtbl->query_devinfo(sc->codec_if, di));
474}
475
476size_t
477esa_round_buffersize(void *hdl, int direction, size_t bufsize)
478{
479	struct esa_softc *sc = hdl;
480
481	sc->play.bufsize = sc->rec.bufsize = 65536;
482
483	return (sc->play.bufsize);
484}
485
486int
487esa_get_props(void *hdl)
488{
489
490	return (AUDIO_PROP_MMAP | AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX);
491}
492
493int
494esa_trigger_output(void *hdl, void *start, void *end, int blksize,
495			void (*intr)(void *), void *intrarg,
496			struct audio_params *param)
497{
498	struct esa_softc *sc = hdl;
499	struct esa_dma *p;
500	bus_space_tag_t iot = sc->sc_iot;
501	bus_space_handle_t ioh = sc->sc_ioh;
502	u_int32_t data;
503	u_int32_t bufaddr;
504	u_int32_t i;
505	size_t size;
506	int data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
507			   (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
508			   (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255)
509			   &~ 255;
510	int dac_data = ESA_DAC_DATA + data_bytes;
511	int dsp_in_size = ESA_MINISRC_IN_BUFFER_SIZE - (0x20 * 2);
512	int dsp_out_size = ESA_MINISRC_OUT_BUFFER_SIZE - (0x20 * 2);
513	int dsp_in_buf = dac_data + (ESA_MINISRC_TMP_BUFFER_SIZE / 2);
514	int dsp_out_buf = dsp_in_buf + (dsp_in_size / 2) + 1;
515	sc->play.data_offset = dac_data;
516
517	if (sc->play.active)
518		return (EINVAL);
519
520	for (p = sc->sc_dmas; p && KERNADDR(p) != start; p = p->next)
521		;
522	if (!p) {
523		printf("%s: esa_trigger_output: bad addr %p\n",
524		    sc->sc_dev.dv_xname, start);
525		return (EINVAL);
526	}
527
528	sc->play.active = 1;
529	sc->play.intr = intr;
530	sc->play.arg = intrarg;
531	sc->play.pos = 0;
532	sc->play.count = 0;
533	sc->play.buf = start;
534	size = (size_t)(((caddr_t)end - (caddr_t)start));
535	bufaddr = DMAADDR(p);
536	sc->play.start = bufaddr;
537
538#define LO(x) ((x) & 0x0000ffff)
539#define HI(x) ((x) >> 16)
540
541	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
542	    ESA_CDATA_HOST_SRC_ADDRL, LO(bufaddr));
543	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
544	    ESA_CDATA_HOST_SRC_ADDRH, HI(bufaddr));
545	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
546	    ESA_CDATA_HOST_SRC_END_PLUS_1L, LO(bufaddr + size));
547	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
548	    ESA_CDATA_HOST_SRC_END_PLUS_1H, HI(bufaddr + size));
549	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
550	    ESA_CDATA_HOST_SRC_CURRENTL, LO(bufaddr));
551	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
552	    ESA_CDATA_HOST_SRC_CURRENTH, HI(bufaddr));
553
554	/* DSP buffers */
555	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
556	    ESA_CDATA_IN_BUF_BEGIN, dsp_in_buf);
557	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
558	    ESA_CDATA_IN_BUF_END_PLUS_1, dsp_in_buf + (dsp_in_size / 2));
559	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
560	    ESA_CDATA_IN_BUF_HEAD, dsp_in_buf);
561	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
562	    ESA_CDATA_IN_BUF_TAIL, dsp_in_buf);
563	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
564	    ESA_CDATA_OUT_BUF_BEGIN, dsp_out_buf);
565	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
566	    ESA_CDATA_OUT_BUF_END_PLUS_1, dsp_out_buf + (dsp_out_size / 2));
567	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
568	    ESA_CDATA_OUT_BUF_HEAD, dsp_out_buf);
569	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
570	    ESA_CDATA_OUT_BUF_TAIL, dsp_out_buf);
571
572	/* Some per-client initializers */
573	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
574	    ESA_SRC3_DIRECTION_OFFSET + 12, dac_data + 40 + 8);
575	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
576	    ESA_SRC3_DIRECTION_OFFSET + 19, 0x400 + ESA_MINISRC_COEF_LOC);
577	/* Enable or disable low-pass filter? (0xff if rate > 45000) */
578	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
579	    ESA_SRC3_DIRECTION_OFFSET + 22, 0);
580	/* Tell it which way DMA is going */
581	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
582	    ESA_CDATA_DMA_CONTROL,
583	    ESA_DMACONTROL_AUTOREPEAT + ESA_DMAC_PAGE3_SELECTOR +
584	    ESA_DMAC_BLOCKF_SELECTOR);
585
586	/* Set an armload of static initializers */
587	for (i = 0; i < (sizeof(esa_playvals) / sizeof(esa_playvals[0])); i++)
588		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
589		    esa_playvals[i].addr, esa_playvals[i].val);
590
591	/* Put us in the packed task lists */
592	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
593	    ESA_KDATA_INSTANCE0_MINISRC,
594	    dac_data >> ESA_DP_SHIFT_COUNT);
595	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_DMA_XFER0,
596	    dac_data >> ESA_DP_SHIFT_COUNT);
597	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_MIXER_XFER0,
598	    dac_data >> ESA_DP_SHIFT_COUNT);
599#undef LO
600#undef HI
601
602	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
603	    ESA_KDATA_TIMER_COUNT_RELOAD, 240);
604	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
605	    ESA_KDATA_TIMER_COUNT_CURRENT, 240);
606	data = bus_space_read_2(iot, ioh, ESA_HOST_INT_CTRL);
607	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
608	    data | ESA_CLKRUN_GEN_ENABLE);
609
610	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, dac_data +
611	    ESA_CDATA_INSTANCE_READY, 1);
612	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
613	    ESA_KDATA_MIXER_TASK_NUMBER, 1);
614
615	return (0);
616}
617
618int
619esa_trigger_input(void *hdl, void *start, void *end, int blksize,
620			void (*intr)(void *), void *intrarg,
621			struct audio_params *param)
622{
623	struct esa_softc *sc = hdl;
624	struct esa_dma *p;
625	bus_space_tag_t iot = sc->sc_iot;
626	bus_space_handle_t ioh = sc->sc_ioh;
627	u_int32_t data;
628	u_int32_t bufaddr;
629	u_int32_t i;
630	size_t size;
631	int data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
632			   (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
633			   (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255)
634			   &~ 255;
635	int adc_data = ESA_DAC_DATA + data_bytes + (data_bytes / 2);
636	int dsp_in_size = ESA_MINISRC_IN_BUFFER_SIZE - (0x10 * 2);
637	int dsp_out_size = ESA_MINISRC_OUT_BUFFER_SIZE - (0x10 * 2);
638	int dsp_in_buf = adc_data + (ESA_MINISRC_TMP_BUFFER_SIZE / 2);
639	int dsp_out_buf = dsp_in_buf + (dsp_in_size / 2) + 1;
640	sc->rec.data_offset = adc_data;
641
642	if (sc->rec.active)
643		return (EINVAL);
644
645	for (p = sc->sc_dmas; p && KERNADDR(p) != start; p = p->next)
646		;
647	if (!p) {
648		printf("%s: esa_trigger_input: bad addr %p\n",
649		    sc->sc_dev.dv_xname, start);
650		return (EINVAL);
651	}
652
653	sc->rec.active = 1;
654	sc->rec.intr = intr;
655	sc->rec.arg = intrarg;
656	sc->rec.pos = 0;
657	sc->rec.count = 0;
658	sc->rec.buf = start;
659	size = (size_t)(((caddr_t)end - (caddr_t)start));
660	bufaddr = DMAADDR(p);
661	sc->rec.start = bufaddr;
662
663#define LO(x) ((x) & 0x0000ffff)
664#define HI(x) ((x) >> 16)
665
666	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
667	    ESA_CDATA_HOST_SRC_ADDRL, LO(bufaddr));
668	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
669	    ESA_CDATA_HOST_SRC_ADDRH, HI(bufaddr));
670	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
671	    ESA_CDATA_HOST_SRC_END_PLUS_1L, LO(bufaddr + size));
672	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
673	    ESA_CDATA_HOST_SRC_END_PLUS_1H, HI(bufaddr + size));
674	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
675	    ESA_CDATA_HOST_SRC_CURRENTL, LO(bufaddr));
676	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
677	    ESA_CDATA_HOST_SRC_CURRENTH, HI(bufaddr));
678
679	/* DSP buffers */
680	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
681	    ESA_CDATA_IN_BUF_BEGIN, dsp_in_buf);
682	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
683	    ESA_CDATA_IN_BUF_END_PLUS_1, dsp_in_buf + (dsp_in_size / 2));
684	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
685	    ESA_CDATA_IN_BUF_HEAD, dsp_in_buf);
686	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
687	    ESA_CDATA_IN_BUF_TAIL, dsp_in_buf);
688	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
689	    ESA_CDATA_OUT_BUF_BEGIN, dsp_out_buf);
690	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
691	    ESA_CDATA_OUT_BUF_END_PLUS_1, dsp_out_buf + (dsp_out_size / 2));
692	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
693	    ESA_CDATA_OUT_BUF_HEAD, dsp_out_buf);
694	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
695	    ESA_CDATA_OUT_BUF_TAIL, dsp_out_buf);
696
697	/* Some per-client initializers */
698	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
699	    ESA_SRC3_DIRECTION_OFFSET + 12, adc_data + 40 + 8);
700	/* Tell it which way DMA is going */
701	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
702	    ESA_CDATA_DMA_CONTROL,
703	    ESA_DMACONTROL_DIRECTION + ESA_DMACONTROL_AUTOREPEAT +
704	    ESA_DMAC_PAGE3_SELECTOR + ESA_DMAC_BLOCKF_SELECTOR);
705
706	/* Set an armload of static initializers */
707	for (i = 0; i < (sizeof(esa_recvals) / sizeof(esa_recvals[0])); i++)
708		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
709		    esa_recvals[i].addr, esa_recvals[i].val);
710
711	/* Put us in the packed task lists */
712	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
713	    ESA_KDATA_INSTANCE0_MINISRC,
714	    adc_data >> ESA_DP_SHIFT_COUNT);
715	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_DMA_XFER0,
716	    adc_data >> ESA_DP_SHIFT_COUNT);
717	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_ADC1_XFER0,
718	    adc_data >> ESA_DP_SHIFT_COUNT);
719#undef LO
720#undef HI
721
722	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
723	    ESA_KDATA_TIMER_COUNT_RELOAD, 240);
724	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
725	    ESA_KDATA_TIMER_COUNT_CURRENT, 240);
726	data = bus_space_read_2(iot, ioh, ESA_HOST_INT_CTRL);
727	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
728	    data | ESA_CLKRUN_GEN_ENABLE);
729
730	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_ADC1_REQUEST, 1);
731	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, adc_data +
732	    ESA_CDATA_INSTANCE_READY, 1);
733
734	return (0);
735}
736
737/* Interrupt handler */
738
739int
740esa_intr(void *hdl)
741{
742	struct esa_softc *sc = hdl;
743	bus_space_tag_t iot = sc->sc_iot;
744	bus_space_handle_t ioh = sc->sc_ioh;
745	u_int32_t status, ctl;
746	u_int32_t pos;
747	u_int32_t diff;
748	u_int32_t play_blksize = sc->play.blksize;
749	u_int32_t play_bufsize = sc->play.bufsize;
750	u_int32_t rec_blksize = sc->rec.blksize;
751	u_int32_t rec_bufsize = sc->rec.bufsize;
752
753	status = bus_space_read_1(iot, ioh, ESA_HOST_INT_STATUS);
754	if (!status)
755		return (0);
756
757	/* ack the interrupt */
758	bus_space_write_1(iot, ioh, ESA_HOST_INT_STATUS, 0xff);
759
760	if (status & ESA_HV_INT_PENDING) {
761		u_int8_t event;
762
763		printf("%s: hardware volume interrupt\n", sc->sc_dev.dv_xname);
764		event = bus_space_read_1(iot, ioh, ESA_HW_VOL_COUNTER_MASTER);
765		switch(event) {
766		case 0x99:
767		case 0xaa:
768		case 0x66:
769		case 0x88:
770			printf("%s: esa_intr: FIXME\n", sc->sc_dev.dv_xname);
771			break;
772		default:
773			printf("%s: unknown hwvol event 0x%02x\n",
774			    sc->sc_dev.dv_xname, event);
775			break;
776		}
777		bus_space_write_1(iot, ioh, ESA_HW_VOL_COUNTER_MASTER, 0x88);
778	}
779
780	if (status & ESA_ASSP_INT_PENDING) {
781		ctl = bus_space_read_1(iot, ioh, ESA_ASSP_CONTROL_B);
782		if (!(ctl & ESA_STOP_ASSP_CLOCK)) {
783			ctl = bus_space_read_1(iot, ioh,
784					       ESA_ASSP_HOST_INT_STATUS);
785			if (ctl & ESA_DSP2HOST_REQ_TIMER) {
786				bus_space_write_1(iot, ioh,
787				    ESA_ASSP_HOST_INT_STATUS,
788				    ESA_DSP2HOST_REQ_TIMER);
789				if (sc->play.active) {
790					pos = esa_get_pointer(sc, &sc->play)
791					    % play_bufsize;
792					diff = (play_bufsize + pos - sc->play.pos)
793					    % play_bufsize;
794					sc->play.pos = pos;
795					sc->play.count += diff;
796					while(sc->play.count >= play_blksize) {
797						sc->play.count -= play_blksize;
798						(*sc->play.intr)(sc->play.arg);
799					}
800				}
801				if (sc->rec.active) {
802					pos = esa_get_pointer(sc, &sc->rec)
803					    % rec_bufsize;
804					diff = (rec_bufsize + pos - sc->rec.pos)
805					    % rec_bufsize;
806					sc->rec.pos = pos;
807					sc->rec.count += diff;
808					while(sc->rec.count >= rec_blksize) {
809						sc->rec.count -= rec_blksize;
810						(*sc->rec.intr)(sc->rec.arg);
811					}
812				}
813			}
814		}
815	}
816
817	return (1);
818}
819
820int
821esa_allocmem(struct esa_softc *sc, size_t size, size_t align,
822		struct esa_dma *p)
823{
824	int error;
825
826	p->size = size;
827	error = bus_dmamem_alloc(sc->sc_dmat, p->size, align, 0,
828				 p->segs, sizeof(p->segs) / sizeof(p->segs[0]),
829				 &p->nsegs, BUS_DMA_NOWAIT);
830	if (error)
831		return (error);
832
833	error = bus_dmamem_map(sc->sc_dmat, p->segs, p->nsegs, p->size,
834				&p->addr, BUS_DMA_NOWAIT | BUS_DMA_COHERENT);
835	if (error)
836		goto free;
837
838	error = bus_dmamap_create(sc->sc_dmat, p->size, 1, p->size, 0,
839				  BUS_DMA_NOWAIT, &p->map);
840	if (error)
841		goto unmap;
842
843	error = bus_dmamap_load(sc->sc_dmat, p->map, p->addr, p->size, NULL,
844				BUS_DMA_NOWAIT);
845	if (error)
846		goto destroy;
847
848	return (0);
849
850destroy:
851	bus_dmamap_destroy(sc->sc_dmat, p->map);
852unmap:
853	bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
854free:
855	bus_dmamem_free(sc->sc_dmat, p->segs, p->nsegs);
856
857	return (error);
858}
859
860int
861esa_freemem(struct esa_softc *sc, struct esa_dma *p)
862{
863
864	bus_dmamap_unload(sc->sc_dmat, p->map);
865	bus_dmamap_destroy(sc->sc_dmat, p->map);
866	bus_dmamem_unmap(sc->sc_dmat, p->addr, p->size);
867	bus_dmamem_free(sc->sc_dmat, p->segs, p->nsegs);
868
869	return (0);
870}
871
872/*
873 * Supporting Subroutines
874 */
875
876int
877esa_match(struct device *dev, struct cfdata *match, void *aux)
878{
879	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
880
881	switch(PCI_VENDOR(pa->pa_id)) {
882	case PCI_VENDOR_ESSTECH:
883		switch(PCI_PRODUCT(pa->pa_id)) {
884		case PCI_PRODUCT_ESSTECH_ALLEGRO1:
885		case PCI_PRODUCT_ESSTECH_MAESTRO3:
886		case PCI_PRODUCT_ESSTECH_MAESTRO3_2:
887			return (1);
888		}
889	}
890
891	return (0);
892}
893
894void
895esa_attach(struct device *parent, struct device *self, void *aux)
896{
897	struct esa_softc *sc = (struct esa_softc *)self;
898	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
899	pcitag_t tag = pa->pa_tag;
900	pci_chipset_tag_t pc = pa->pa_pc;
901	pci_intr_handle_t ih;
902	struct esa_card_type *card;
903	const char *intrstr;
904	u_int32_t data;
905	char devinfo[256];
906	int revision, len;
907
908	pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
909	revision = PCI_REVISION(pa->pa_class);
910	printf(": %s (rev. 0x%02x)\n", devinfo, revision);
911
912	for (card = esa_card_types; card->pci_vendor_id; card++)
913		if (PCI_VENDOR(pa->pa_id) == card->pci_vendor_id &&
914		    PCI_PRODUCT(pa->pa_id) == card->pci_product_id) {
915			sc->type = card->type;
916			sc->delay1 = card->delay1;
917			sc->delay2 = card->delay2;
918			break;
919		}
920
921	data = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
922	data |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE
923	    | PCI_COMMAND_MASTER_ENABLE);
924	pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, data);
925
926	/* Map I/O register */
927	if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
928	    &sc->sc_iot, &sc->sc_ioh, &sc->sc_iob, &sc->sc_ios)) {
929		printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
930		return;
931	}
932
933	/* Initialize softc */
934	sc->sc_tag = tag;
935	sc->sc_pct = pc;
936	sc->sc_dmat = pa->pa_dmat;
937
938	/* Map and establish an interrupt */
939	if (pci_intr_map(pa, &ih)) {
940		printf("%s: can't map interrupt\n", sc->sc_dev.dv_xname);
941		return;
942	}
943	intrstr = pci_intr_string(pc, ih);
944	sc->sc_ih = pci_intr_establish(pc, ih, IPL_AUDIO, esa_intr, self);
945	if (sc->sc_ih == NULL) {
946		printf("%s: can't establish interrupt", sc->sc_dev.dv_xname);
947		if (intrstr != NULL)
948			printf(" at %s", intrstr);
949		printf("\n");
950		return;
951	}
952	printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
953
954	/* Power up chip */
955	esa_power(sc, ESA_PPMI_D0);
956
957	/* Init chip */
958	if (esa_init(sc) == -1) {
959		printf("%s: esa_attach: unable to initialize the card\n",
960		    sc->sc_dev.dv_xname);
961		return;
962	}
963
964	/* create suspend save area */
965	len = sizeof(u_int16_t) * (ESA_REV_B_CODE_MEMORY_LENGTH
966	    + ESA_REV_B_DATA_MEMORY_LENGTH + 1);
967	sc->savemem = (u_int16_t *)malloc(len, M_DEVBUF, M_NOWAIT);
968	if (sc->savemem == NULL) {
969		printf("%s: unable to allocate suspend buffer\n",
970		    sc->sc_dev.dv_xname);
971		return;
972	}
973	memset(sc->savemem, 0, len);
974
975	/* Attach AC97 host interface */
976	sc->host_if.arg = self;
977	sc->host_if.attach = esa_attach_codec;
978	sc->host_if.read = esa_read_codec;
979	sc->host_if.write = esa_write_codec;
980	sc->host_if.reset = esa_reset_codec;
981	sc->host_if.flags = esa_flags_codec;
982
983	if (ac97_attach(&sc->host_if) != 0)
984		return;
985
986	sc->sc_audiodev = audio_attach_mi(&esa_hw_if, self, &sc->sc_dev);
987
988	sc->powerhook = powerhook_establish(esa_powerhook, sc);
989	if (sc->powerhook == NULL)
990		printf("%s: WARNING: unable to establish powerhook\n",
991		    sc->sc_dev.dv_xname);
992
993	return;
994}
995
996int
997esa_detach(struct device *self, int flags)
998{
999	struct esa_softc *sc = (struct esa_softc *)self;
1000	int rv = 0;
1001
1002	if (sc->sc_audiodev != NULL)
1003		rv = config_detach(sc->sc_audiodev, flags);
1004	if (rv)
1005		return (rv);
1006
1007	if (sc->sc_ih != NULL)
1008		pci_intr_disestablish(sc->sc_pct, sc->sc_ih);
1009	if (sc->sc_ios)
1010		bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
1011
1012	return (0);
1013}
1014
1015u_int16_t
1016esa_read_assp(struct esa_softc *sc, u_int16_t region, u_int16_t index)
1017{
1018	u_int16_t data;
1019	bus_space_tag_t iot = sc->sc_iot;
1020	bus_space_handle_t ioh = sc->sc_ioh;
1021
1022	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_TYPE,
1023	    region & ESA_MEMTYPE_MASK);
1024	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_INDEX, index);
1025	data = bus_space_read_2(iot, ioh, ESA_DSP_PORT_MEMORY_DATA);
1026
1027	return (data);
1028}
1029
1030void
1031esa_write_assp(struct esa_softc *sc, u_int16_t region, u_int16_t index,
1032		u_int16_t data)
1033{
1034	bus_space_tag_t iot = sc->sc_iot;
1035	bus_space_handle_t ioh = sc->sc_ioh;
1036
1037	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_TYPE,
1038	    region & ESA_MEMTYPE_MASK);
1039	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_INDEX, index);
1040	bus_space_write_2(iot, ioh, ESA_DSP_PORT_MEMORY_DATA, data);
1041
1042	return;
1043}
1044
1045int
1046esa_init_codec(struct esa_softc *sc)
1047{
1048	bus_space_tag_t iot = sc->sc_iot;
1049	bus_space_handle_t ioh = sc->sc_ioh;
1050	u_int32_t data;
1051
1052	data = bus_space_read_1(iot, ioh, ESA_CODEC_COMMAND);
1053
1054	return ((data & 0x1) ? 0 : 1);
1055}
1056
1057int
1058esa_attach_codec(void *aux, struct ac97_codec_if *codec_if)
1059{
1060	struct esa_softc *sc = aux;
1061
1062	sc->codec_if = codec_if;
1063
1064	return (0);
1065}
1066
1067int
1068esa_read_codec(void *aux, u_int8_t reg, u_int16_t *result)
1069{
1070	struct esa_softc *sc = aux;
1071	bus_space_tag_t iot = sc->sc_iot;
1072	bus_space_handle_t ioh = sc->sc_ioh;
1073
1074	if (esa_wait(sc))
1075		printf("%s: esa_read_codec: timed out\n", sc->sc_dev.dv_xname);
1076	bus_space_write_1(iot, ioh, ESA_CODEC_COMMAND, (reg & 0x7f) | 0x80);
1077	delay(50);
1078	if (esa_wait(sc))
1079		printf("%s: esa_read_codec: timed out\n", sc->sc_dev.dv_xname);
1080	*result = bus_space_read_2(iot, ioh, ESA_CODEC_DATA);
1081
1082	return (0);
1083}
1084
1085int
1086esa_write_codec(void *aux, u_int8_t reg, u_int16_t data)
1087{
1088	struct esa_softc *sc = aux;
1089	bus_space_tag_t iot = sc->sc_iot;
1090	bus_space_handle_t ioh = sc->sc_ioh;
1091
1092	if (esa_wait(sc)) {
1093		printf("%s: esa_write_codec: timed out\n", sc->sc_dev.dv_xname);
1094		return (-1);
1095	}
1096	bus_space_write_2(iot, ioh, ESA_CODEC_DATA, data);
1097	bus_space_write_1(iot, ioh, ESA_CODEC_COMMAND, reg & 0x7f);
1098	delay(50);
1099
1100	return (0);
1101}
1102
1103void
1104esa_reset_codec(void *aux)
1105{
1106
1107	return;
1108}
1109
1110enum ac97_host_flags
1111esa_flags_codec(void *aux)
1112{
1113	struct esa_softc *sc = aux;
1114
1115	return (sc->codec_flags);
1116}
1117
1118int
1119esa_wait(struct esa_softc *sc)
1120{
1121	int i, val;
1122	bus_space_tag_t iot = sc->sc_iot;
1123	bus_space_handle_t ioh = sc->sc_ioh;
1124
1125	for (i = 0; i < 20; i++) {
1126		val = bus_space_read_1(iot, ioh, ESA_CODEC_STATUS);
1127		if ((val & 1) == 0)
1128			return (0);
1129		delay(2);
1130	}
1131
1132	return (-1);
1133}
1134
1135int
1136esa_init(struct esa_softc *sc)
1137{
1138	bus_space_tag_t iot = sc->sc_iot;
1139	bus_space_handle_t ioh = sc->sc_ioh;
1140	pcitag_t tag = sc->sc_tag;
1141	pci_chipset_tag_t pc = sc->sc_pct;
1142	u_int32_t data, i, size;
1143	u_int8_t reset_state;
1144	int data_bytes = (((ESA_MINISRC_TMP_BUFFER_SIZE & ~1) +
1145			   (ESA_MINISRC_IN_BUFFER_SIZE & ~1) +
1146			   (ESA_MINISRC_OUT_BUFFER_SIZE & ~1) + 4) + 255)
1147			   &~ 255;
1148
1149	/* Disable legacy emulation */
1150	data = pci_conf_read(pc, tag, PCI_LEGACY_AUDIO_CTRL);
1151	data |= DISABLE_LEGACY;
1152	pci_conf_write(pc, tag, PCI_LEGACY_AUDIO_CTRL, data);
1153
1154	esa_config(sc);
1155
1156	reset_state = esa_assp_halt(sc);
1157
1158	esa_init_codec(sc);
1159	esa_codec_reset(sc);
1160
1161	/* Zero kernel and mixer data */
1162	size = ESA_REV_B_DATA_MEMORY_UNIT_LENGTH * ESA_NUM_UNITS_KERNEL_DATA;
1163	for (i = 0; i < size / 2; i++) {
1164		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1165		    ESA_KDATA_BASE_ADDR + i, 0);
1166		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1167		    ESA_KDATA_BASE_ADDR2 + i, 0);
1168	}
1169
1170	/* Init DMA pointer */
1171	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_CURRENT_DMA,
1172	    ESA_KDATA_DMA_XFER0);
1173
1174	/* Write kernel code into memory */
1175	size = sizeof(esa_assp_kernel_image);
1176	for (i = 0; i < size / 2; i++)
1177		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
1178		    ESA_REV_B_CODE_MEMORY_BEGIN + i, esa_assp_kernel_image[i]);
1179
1180	size = sizeof(esa_assp_minisrc_image);
1181	for (i = 0; i < size / 2; i++)
1182		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE, 0x400 + i,
1183		    esa_assp_minisrc_image[i]);
1184
1185	/* Write the coefficients for the low pass filter */
1186	size = sizeof(esa_minisrc_lpf_image);
1187	for (i = 0; i < size / 2; i++)
1188		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
1189		    0x400 + ESA_MINISRC_COEF_LOC + i, esa_minisrc_lpf_image[i]);
1190	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE,
1191	    0x400 + ESA_MINISRC_COEF_LOC + size, 0x8000);
1192	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_TASK0, 0x400);
1193	/* Init the mixer number */
1194	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1195             ESA_KDATA_MIXER_TASK_NUMBER, 0);
1196	/* Extreme kernel master volume */
1197	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_DAC_LEFT_VOLUME,
1198	    ESA_ARB_VOLUME);
1199	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA,
1200            ESA_KDATA_DAC_RIGHT_VOLUME, ESA_ARB_VOLUME);
1201
1202	if (esa_amp_enable(sc))
1203		return (-1);
1204
1205	/* Zero entire DAC/ADC area */
1206	for (i = 0x1100; i < 0x1c00; i++)
1207		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, i, 0);
1208
1209	/* set some sane defaults */
1210	sc->play.data_offset = ESA_DAC_DATA + data_bytes;
1211	sc->rec.data_offset = ESA_DAC_DATA + data_bytes + (data_bytes / 2);
1212
1213	esa_enable_interrupts(sc);
1214
1215	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
1216	    reset_state | ESA_REGB_ENABLE_RESET);
1217
1218	return (0);
1219}
1220
1221void
1222esa_config(struct esa_softc *sc)
1223{
1224	bus_space_tag_t iot = sc->sc_iot;
1225	bus_space_handle_t ioh = sc->sc_ioh;
1226	pcitag_t tag = sc->sc_tag;
1227	pci_chipset_tag_t pc = sc->sc_pct;
1228	u_int32_t data;
1229
1230	data = pci_conf_read(pc, tag, ESA_PCI_ALLEGRO_CONFIG);
1231	data &= ESA_REDUCED_DEBOUNCE;
1232	data |= ESA_PM_CTRL_ENABLE | ESA_CLK_DIV_BY_49 | ESA_USE_PCI_TIMING;
1233	pci_conf_write(pc, tag, ESA_PCI_ALLEGRO_CONFIG, data);
1234
1235	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_B, ESA_RESET_ASSP);
1236	data = pci_conf_read(pc, tag, ESA_PCI_ALLEGRO_CONFIG);
1237	data &= ~ESA_INT_CLK_SELECT;
1238	if (sc->type == ESS_MAESTRO3) {
1239		data &= ~ESA_INT_CLK_MULT_ENABLE;
1240		data |= ESA_INT_CLK_SRC_NOT_PCI;
1241	}
1242	data &= ~(ESA_CLK_MULT_MODE_SELECT | ESA_CLK_MULT_MODE_SELECT_2);
1243	pci_conf_write(pc, tag, ESA_PCI_ALLEGRO_CONFIG, data);
1244
1245	if (sc->type == ESS_ALLEGRO1) {
1246		data = pci_conf_read(pc, tag, ESA_PCI_USER_CONFIG);
1247		data |= ESA_IN_CLK_12MHZ_SELECT;
1248		pci_conf_write(pc, tag, ESA_PCI_USER_CONFIG, data);
1249	}
1250
1251	data = bus_space_read_1(iot, ioh, ESA_ASSP_CONTROL_A);
1252	data &= ~(ESA_DSP_CLK_36MHZ_SELECT | ESA_ASSP_CLK_49MHZ_SELECT);
1253	data |= ESA_ASSP_CLK_49MHZ_SELECT;	/* XXX: Assumes 49MHz DSP */
1254	data |= ESA_ASSP_0_WS_ENABLE;
1255	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_A, data);
1256
1257	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_B, ESA_RUN_ASSP);
1258
1259	return;
1260}
1261
1262u_int8_t
1263esa_assp_halt(struct esa_softc *sc)
1264{
1265	bus_space_tag_t iot = sc->sc_iot;
1266	bus_space_handle_t ioh = sc->sc_ioh;
1267	u_int8_t data, reset_state;
1268
1269	data = bus_space_read_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B);
1270	reset_state = data & ~ESA_REGB_STOP_CLOCK;
1271	delay(10000);		/* XXX use tsleep */
1272	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
1273			reset_state & ~ESA_REGB_ENABLE_RESET);
1274	delay(10000);		/* XXX use tsleep */
1275
1276	return (reset_state);
1277}
1278
1279void
1280esa_codec_reset(struct esa_softc *sc)
1281{
1282	bus_space_tag_t iot = sc->sc_iot;
1283	bus_space_handle_t ioh = sc->sc_ioh;
1284	u_int16_t data, dir;
1285	int retry = 0;
1286
1287	do {
1288		data = bus_space_read_2(iot, ioh, ESA_GPIO_DIRECTION);
1289		dir = data | 0x10; /* assuming pci bus master? */
1290
1291		/* remote codec config */
1292		data = bus_space_read_2(iot, ioh, ESA_RING_BUS_CTRL_B);
1293		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_B,
1294		    data & ~ESA_SECOND_CODEC_ID_MASK);
1295		data = bus_space_read_2(iot, ioh, ESA_SDO_OUT_DEST_CTRL);
1296		bus_space_write_2(iot, ioh, ESA_SDO_OUT_DEST_CTRL,
1297		    data & ~ESA_COMMAND_ADDR_OUT);
1298		data = bus_space_read_2(iot, ioh, ESA_SDO_IN_DEST_CTRL);
1299		bus_space_write_2(iot, ioh, ESA_SDO_IN_DEST_CTRL,
1300		    data & ~ESA_STATUS_ADDR_IN);
1301
1302		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_A,
1303				  ESA_IO_SRAM_ENABLE);
1304		delay(20);
1305
1306		bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION,
1307		    dir & ~ESA_GPO_PRIMARY_AC97);
1308		bus_space_write_2(iot, ioh, ESA_GPIO_MASK,
1309				  ~ESA_GPO_PRIMARY_AC97);
1310		bus_space_write_2(iot, ioh, ESA_GPIO_DATA, 0);
1311		bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION,
1312		    dir | ESA_GPO_PRIMARY_AC97);
1313		delay(sc->delay1 * 1000);
1314		bus_space_write_2(iot, ioh, ESA_GPIO_DATA,
1315				  ESA_GPO_PRIMARY_AC97);
1316		delay(5);
1317		bus_space_write_2(iot, ioh, ESA_RING_BUS_CTRL_A,
1318		    ESA_IO_SRAM_ENABLE | ESA_SERIAL_AC_LINK_ENABLE);
1319		bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~0);
1320		delay(sc->delay2 * 1000);
1321
1322		esa_read_codec(sc, 0x7c, &data);
1323		if ((data == 0) || (data == 0xffff)) {
1324			retry++;
1325			if (retry > 3) {
1326				printf("%s: esa_codec_reset: failed\n",
1327				    sc->sc_dev.dv_xname);
1328				break;
1329			}
1330			printf("%s: esa_codec_reset: retrying\n",
1331			    sc->sc_dev.dv_xname);
1332		} else
1333			retry = 0;
1334	} while (retry);
1335
1336	return;
1337}
1338
1339int
1340esa_amp_enable(struct esa_softc *sc)
1341{
1342	bus_space_tag_t iot = sc->sc_iot;
1343	bus_space_handle_t ioh = sc->sc_ioh;
1344	u_int32_t gpo, polarity_port, polarity;
1345	u_int16_t data;
1346
1347	switch (sc->type) {
1348	case ESS_ALLEGRO1:
1349		polarity_port = 0x1800;
1350		break;
1351	case ESS_MAESTRO3:
1352		polarity_port = 0x1100;
1353		break;
1354	default:
1355		printf("%s: esa_amp_enable: Unknown chip type!!!\n",
1356		    sc->sc_dev.dv_xname);
1357		return (1);
1358	}
1359
1360	gpo = (polarity_port >> 8) & 0x0f;
1361	polarity = polarity_port >> 12;
1362	polarity = !polarity;	/* Enable */
1363	polarity = polarity << gpo;
1364	gpo = 1 << gpo;
1365	bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~gpo);
1366	data = bus_space_read_2(iot, ioh, ESA_GPIO_DIRECTION);
1367	bus_space_write_2(iot, ioh, ESA_GPIO_DIRECTION, data | gpo);
1368	data = ESA_GPO_SECONDARY_AC97 | ESA_GPO_PRIMARY_AC97 | polarity;
1369	bus_space_write_2(iot, ioh, ESA_GPIO_DATA, data);
1370	bus_space_write_2(iot, ioh, ESA_GPIO_MASK, ~0);
1371
1372	return (0);
1373}
1374
1375void
1376esa_enable_interrupts(struct esa_softc *sc)
1377{
1378	bus_space_tag_t iot = sc->sc_iot;
1379	bus_space_handle_t ioh = sc->sc_ioh;
1380	u_int8_t data;
1381
1382	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL,
1383	    ESA_ASSP_INT_ENABLE | ESA_HV_INT_ENABLE);
1384	data = bus_space_read_1(iot, ioh, ESA_ASSP_CONTROL_C);
1385	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_C,
1386	    data | ESA_ASSP_HOST_INT_ENABLE);
1387}
1388
1389int
1390esa_power(struct esa_softc *sc, int state)
1391{
1392	pcitag_t tag = sc->sc_tag;
1393	pci_chipset_tag_t pc = sc->sc_pct;
1394	u_int32_t data;
1395
1396	data = pci_conf_read(pc, tag, ESA_CONF_PM_PTR);
1397	if (pci_conf_read(pc, tag, data) == 1)
1398		pci_conf_write(pc, tag, data + 4, state);
1399
1400	return (0);
1401}
1402
1403void
1404esa_powerhook(int why, void *hdl)
1405{
1406	struct esa_softc *sc = (struct esa_softc *)hdl;
1407
1408	switch (why) {
1409	case PWR_SUSPEND:
1410	case PWR_STANDBY:
1411		esa_suspend(sc);
1412		break;
1413	case PWR_RESUME:
1414		esa_resume(sc);
1415		(sc->codec_if->vtbl->restore_ports)(sc->codec_if);
1416		break;
1417	}
1418}
1419
1420int
1421esa_suspend(struct esa_softc *sc)
1422{
1423	bus_space_tag_t iot = sc->sc_iot;
1424	bus_space_handle_t ioh = sc->sc_ioh;
1425	int x, i, index;
1426
1427	index = 0;
1428
1429	x = splaudio();
1430	esa_halt_output(sc);
1431	delay(10000);
1432	splx(x);
1433
1434	bus_space_write_2(iot, ioh, ESA_HOST_INT_CTRL, 0);
1435	bus_space_write_1(iot, ioh, ESA_ASSP_CONTROL_C, 0);
1436
1437	esa_assp_halt(sc);
1438
1439	/* Save ASSP state */
1440	for (i = ESA_REV_B_CODE_MEMORY_BEGIN; i <= ESA_REV_B_CODE_MEMORY_END;
1441	    i++)
1442		sc->savemem[index++] = esa_read_assp(sc,
1443		    ESA_MEMTYPE_INTERNAL_CODE, i);
1444	for (i = ESA_REV_B_DATA_MEMORY_BEGIN; i <= ESA_REV_B_DATA_MEMORY_END;
1445	    i++)
1446		sc->savemem[index++] = esa_read_assp(sc,
1447		    ESA_MEMTYPE_INTERNAL_DATA, i);
1448
1449	esa_power(sc, ESA_PPMI_D3);
1450
1451	return (0);
1452}
1453
1454int
1455esa_resume(struct esa_softc *sc) {
1456	bus_space_tag_t iot = sc->sc_iot;
1457	bus_space_handle_t ioh = sc->sc_ioh;
1458	int i, index;
1459	u_int8_t reset_state;
1460
1461	index = 0;
1462
1463	esa_power(sc, ESA_PPMI_D0);
1464	delay(10000);
1465
1466	esa_config(sc);
1467
1468	reset_state = esa_assp_halt(sc);
1469
1470	/* restore ASSP */
1471	for (i = ESA_REV_B_CODE_MEMORY_BEGIN; i <= ESA_REV_B_CODE_MEMORY_END;
1472	    i++)
1473		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_CODE, i,
1474		    sc->savemem[index++]);
1475	for (i = ESA_REV_B_DATA_MEMORY_BEGIN; i <= ESA_REV_B_DATA_MEMORY_END;
1476	    i++)
1477		esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, i,
1478		    sc->savemem[index++]);
1479
1480	esa_write_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, ESA_KDATA_DMA_ACTIVE, 0);
1481	bus_space_write_1(iot, ioh, ESA_DSP_PORT_CONTROL_REG_B,
1482	    reset_state | ESA_REGB_ENABLE_RESET);
1483
1484	esa_enable_interrupts(sc);
1485	esa_amp_enable(sc);
1486
1487	return (0);
1488}
1489
1490u_int32_t
1491esa_get_pointer(struct esa_softc *sc, struct esa_channel *ch)
1492{
1493	u_int16_t hi = 0, lo = 0;
1494	u_int32_t addr;
1495	int data_offset = ch->data_offset;
1496
1497	hi = esa_read_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, data_offset +
1498	    ESA_CDATA_HOST_SRC_CURRENTH);
1499	lo = esa_read_assp(sc, ESA_MEMTYPE_INTERNAL_DATA, data_offset +
1500	    ESA_CDATA_HOST_SRC_CURRENTL);
1501
1502	addr = lo | ((u_int32_t)hi << 16);
1503	return (addr - ch->start);
1504}
1505
1506paddr_t
1507esa_mappage(void *addr, void *mem, off_t off, int prot)
1508{
1509	struct esa_softc *sc = addr;
1510	struct esa_dma *p;
1511
1512	if (off < 0)
1513		return (-1);
1514	for (p = sc->sc_dmas; p && KERNADDR(p) != mem; p = p->next)
1515		;
1516	if (!p)
1517		return (-1);
1518	return (bus_dmamem_mmap(sc->sc_dmat, p->segs, p->nsegs,
1519				off, prot, BUS_DMA_WAITOK));
1520}
1521