1/*-
2 * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
3 * Copyright (c) 1997,1998 Luigi Rizzo
4 *
5 * Derived from files in the Voxware 3.5 distribution,
6 * Copyright by Hannu Savolainen 1994, under the same copyright
7 * conditions.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#ifdef HAVE_KERNEL_OPTION_HEADERS
33#include "opt_snd.h"
34#endif
35
36#include <dev/sound/pcm/sound.h>
37
38#include  <dev/sound/isa/sb.h>
39#include  <dev/sound/chip.h>
40
41#include <isa/isavar.h>
42
43#include "mixer_if.h"
44
45SND_DECLARE_FILE("$FreeBSD$");
46
47#define ESS_BUFFSIZE (4096)
48#define ABS(x) (((x) < 0)? -(x) : (x))
49
50/* audio2 never generates irqs and sounds very noisy */
51#undef ESS18XX_DUPLEX
52
53/* more accurate clocks and split audio1/audio2 rates */
54#define ESS18XX_NEWSPEED
55
56static u_int32_t ess_pfmt[] = {
57	SND_FORMAT(AFMT_U8, 1, 0),
58	SND_FORMAT(AFMT_U8, 2, 0),
59	SND_FORMAT(AFMT_S8, 1, 0),
60	SND_FORMAT(AFMT_S8, 2, 0),
61	SND_FORMAT(AFMT_S16_LE, 1, 0),
62	SND_FORMAT(AFMT_S16_LE, 2, 0),
63	SND_FORMAT(AFMT_U16_LE, 1, 0),
64	SND_FORMAT(AFMT_U16_LE, 2, 0),
65	0
66};
67
68static struct pcmchan_caps ess_playcaps = {6000, 48000, ess_pfmt, 0};
69
70static u_int32_t ess_rfmt[] = {
71	SND_FORMAT(AFMT_U8, 1, 0),
72	SND_FORMAT(AFMT_U8, 2, 0),
73	SND_FORMAT(AFMT_S8, 1, 0),
74	SND_FORMAT(AFMT_S8, 2, 0),
75	SND_FORMAT(AFMT_S16_LE, 1, 0),
76	SND_FORMAT(AFMT_S16_LE, 2, 0),
77	SND_FORMAT(AFMT_U16_LE, 1, 0),
78	SND_FORMAT(AFMT_U16_LE, 2, 0),
79	0
80};
81
82static struct pcmchan_caps ess_reccaps = {6000, 48000, ess_rfmt, 0};
83
84struct ess_info;
85
86struct ess_chinfo {
87	struct ess_info *parent;
88	struct pcm_channel *channel;
89	struct snd_dbuf *buffer;
90	int dir, hwch, stopping, run;
91	u_int32_t fmt, spd, blksz;
92};
93
94struct ess_info {
95	device_t parent_dev;
96    	struct resource *io_base;	/* I/O address for the board */
97    	struct resource *irq;
98   	struct resource *drq1;
99    	struct resource *drq2;
100    	void *ih;
101    	bus_dma_tag_t parent_dmat;
102
103	unsigned int bufsize;
104    	int type;
105	unsigned int duplex:1, newspeed:1;
106    	u_long bd_flags;       /* board-specific flags */
107    	struct ess_chinfo pch, rch;
108};
109
110#if 0
111static int ess_rd(struct ess_info *sc, int reg);
112static void ess_wr(struct ess_info *sc, int reg, u_int8_t val);
113static int ess_dspready(struct ess_info *sc);
114static int ess_cmd(struct ess_info *sc, u_char val);
115static int ess_cmd1(struct ess_info *sc, u_char cmd, int val);
116static int ess_get_byte(struct ess_info *sc);
117static void ess_setmixer(struct ess_info *sc, u_int port, u_int value);
118static int ess_getmixer(struct ess_info *sc, u_int port);
119static int ess_reset_dsp(struct ess_info *sc);
120
121static int ess_write(struct ess_info *sc, u_char reg, int val);
122static int ess_read(struct ess_info *sc, u_char reg);
123
124static void ess_intr(void *arg);
125static int ess_setupch(struct ess_info *sc, int ch, int dir, int spd, u_int32_t fmt, int len);
126static int ess_start(struct ess_chinfo *ch);
127static int ess_stop(struct ess_chinfo *ch);
128#endif
129
130/*
131 * Common code for the midi and pcm functions
132 *
133 * ess_cmd write a single byte to the CMD port.
134 * ess_cmd1 write a CMD + 1 byte arg
135 * ess_cmd2 write a CMD + 2 byte arg
136 * ess_get_byte returns a single byte from the DSP data port
137 *
138 * ess_write is actually ess_cmd1
139 * ess_read access ext. regs via ess_cmd(0xc0, reg) followed by ess_get_byte
140 */
141
142static void
143ess_lock(struct ess_info *sc) {
144
145	sbc_lock(device_get_softc(sc->parent_dev));
146}
147
148static void
149ess_unlock(struct ess_info *sc) {
150
151	sbc_unlock(device_get_softc(sc->parent_dev));
152}
153
154static int
155port_rd(struct resource *port, int off)
156{
157	return bus_space_read_1(rman_get_bustag(port),
158				rman_get_bushandle(port),
159				off);
160}
161
162static void
163port_wr(struct resource *port, int off, u_int8_t data)
164{
165	bus_space_write_1(rman_get_bustag(port),
166			  rman_get_bushandle(port),
167			  off, data);
168}
169
170static int
171ess_rd(struct ess_info *sc, int reg)
172{
173	return port_rd(sc->io_base, reg);
174}
175
176static void
177ess_wr(struct ess_info *sc, int reg, u_int8_t val)
178{
179	port_wr(sc->io_base, reg, val);
180}
181
182static int
183ess_dspready(struct ess_info *sc)
184{
185	return ((ess_rd(sc, SBDSP_STATUS) & 0x80) == 0);
186}
187
188static int
189ess_dspwr(struct ess_info *sc, u_char val)
190{
191    	int  i;
192
193    	for (i = 0; i < 1000; i++) {
194		if (ess_dspready(sc)) {
195	    		ess_wr(sc, SBDSP_CMD, val);
196	    		return 1;
197		}
198		if (i > 10) DELAY((i > 100)? 1000 : 10);
199    	}
200    	printf("ess_dspwr(0x%02x) timed out.\n", val);
201    	return 0;
202}
203
204static int
205ess_cmd(struct ess_info *sc, u_char val)
206{
207#if 0
208	printf("ess_cmd: %x\n", val);
209#endif
210    	return ess_dspwr(sc, val);
211}
212
213static int
214ess_cmd1(struct ess_info *sc, u_char cmd, int val)
215{
216#if 0
217    	printf("ess_cmd1: %x, %x\n", cmd, val);
218#endif
219    	if (ess_dspwr(sc, cmd)) {
220		return ess_dspwr(sc, val & 0xff);
221    	} else return 0;
222}
223
224static void
225ess_setmixer(struct ess_info *sc, u_int port, u_int value)
226{
227	DEB(printf("ess_setmixer: reg=%x, val=%x\n", port, value);)
228    	ess_wr(sc, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
229    	DELAY(10);
230    	ess_wr(sc, SB_MIX_DATA, (u_char) (value & 0xff));
231    	DELAY(10);
232}
233
234static int
235ess_getmixer(struct ess_info *sc, u_int port)
236{
237    	int val;
238    	ess_wr(sc, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
239    	DELAY(10);
240    	val = ess_rd(sc, SB_MIX_DATA);
241    	DELAY(10);
242
243    	return val;
244}
245
246static int
247ess_get_byte(struct ess_info *sc)
248{
249    	int i;
250
251    	for (i = 1000; i > 0; i--) {
252		if (ess_rd(sc, DSP_DATA_AVAIL) & 0x80)
253			return ess_rd(sc, DSP_READ);
254		else
255			DELAY(20);
256    	}
257    	return -1;
258}
259
260static int
261ess_write(struct ess_info *sc, u_char reg, int val)
262{
263    	return ess_cmd1(sc, reg, val);
264}
265
266static int
267ess_read(struct ess_info *sc, u_char reg)
268{
269    	return (ess_cmd(sc, 0xc0) && ess_cmd(sc, reg))? ess_get_byte(sc) : -1;
270}
271
272static int
273ess_reset_dsp(struct ess_info *sc)
274{
275    	ess_wr(sc, SBDSP_RST, 3);
276    	DELAY(100);
277    	ess_wr(sc, SBDSP_RST, 0);
278    	if (ess_get_byte(sc) != 0xAA) {
279        	DEB(printf("ess_reset_dsp 0x%lx failed\n",
280			   rman_get_start(sc->io_base)));
281		return ENXIO;	/* Sorry */
282    	}
283    	ess_cmd(sc, 0xc6);
284    	return 0;
285}
286
287static void
288ess_release_resources(struct ess_info *sc, device_t dev)
289{
290    	if (sc->irq) {
291    		if (sc->ih)
292			bus_teardown_intr(dev, sc->irq, sc->ih);
293		bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq);
294		sc->irq = 0;
295    	}
296    	if (sc->drq1) {
297		isa_dma_release(rman_get_start(sc->drq1));
298		bus_release_resource(dev, SYS_RES_DRQ, 0, sc->drq1);
299		sc->drq1 = 0;
300    	}
301    	if (sc->drq2) {
302		isa_dma_release(rman_get_start(sc->drq2));
303		bus_release_resource(dev, SYS_RES_DRQ, 1, sc->drq2);
304		sc->drq2 = 0;
305    	}
306    	if (sc->io_base) {
307		bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->io_base);
308		sc->io_base = 0;
309    	}
310    	if (sc->parent_dmat) {
311		bus_dma_tag_destroy(sc->parent_dmat);
312		sc->parent_dmat = 0;
313    	}
314     	free(sc, M_DEVBUF);
315}
316
317static int
318ess_alloc_resources(struct ess_info *sc, device_t dev)
319{
320	int rid;
321
322	rid = 0;
323	if (!sc->io_base)
324    		sc->io_base = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
325						     &rid, RF_ACTIVE);
326	rid = 0;
327	if (!sc->irq)
328    		sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
329						 &rid, RF_ACTIVE);
330	rid = 0;
331	if (!sc->drq1)
332    		sc->drq1 = bus_alloc_resource_any(dev, SYS_RES_DRQ,
333						  &rid, RF_ACTIVE);
334	rid = 1;
335	if (!sc->drq2)
336        	sc->drq2 = bus_alloc_resource_any(dev, SYS_RES_DRQ,
337						  &rid, RF_ACTIVE);
338
339    	if (sc->io_base && sc->drq1 && sc->irq) {
340  		isa_dma_acquire(rman_get_start(sc->drq1));
341		isa_dmainit(rman_get_start(sc->drq1), sc->bufsize);
342
343		if (sc->drq2) {
344			isa_dma_acquire(rman_get_start(sc->drq2));
345			isa_dmainit(rman_get_start(sc->drq2), sc->bufsize);
346		}
347
348		return 0;
349	} else return ENXIO;
350}
351
352static void
353ess_intr(void *arg)
354{
355    	struct ess_info *sc = (struct ess_info *)arg;
356	int src, pirq, rirq;
357
358	ess_lock(sc);
359	src = 0;
360	if (ess_getmixer(sc, 0x7a) & 0x80)
361		src |= 2;
362	if (ess_rd(sc, 0x0c) & 0x01)
363		src |= 1;
364
365	pirq = (src & sc->pch.hwch)? 1 : 0;
366	rirq = (src & sc->rch.hwch)? 1 : 0;
367
368	if (pirq) {
369		if (sc->pch.run) {
370			ess_unlock(sc);
371			chn_intr(sc->pch.channel);
372			ess_lock(sc);
373		}
374		if (sc->pch.stopping) {
375			sc->pch.run = 0;
376			sndbuf_dma(sc->pch.buffer, PCMTRIG_STOP);
377			sc->pch.stopping = 0;
378			if (sc->pch.hwch == 1)
379				ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x01);
380			else
381				ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) & ~0x03);
382		}
383	}
384
385	if (rirq) {
386		if (sc->rch.run) {
387			ess_unlock(sc);
388			chn_intr(sc->rch.channel);
389			ess_lock(sc);
390		}
391		if (sc->rch.stopping) {
392			sc->rch.run = 0;
393			sndbuf_dma(sc->rch.buffer, PCMTRIG_STOP);
394			sc->rch.stopping = 0;
395			/* XXX: will this stop audio2? */
396			ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x01);
397		}
398	}
399
400	if (src & 2)
401		ess_setmixer(sc, 0x7a, ess_getmixer(sc, 0x7a) & ~0x80);
402	if (src & 1)
403    		ess_rd(sc, DSP_DATA_AVAIL);
404	ess_unlock(sc);
405}
406
407/* utility functions for ESS */
408static u_int8_t
409ess_calcspeed8(int *spd)
410{
411	int speed = *spd;
412	u_int32_t t;
413
414	if (speed > 22000) {
415		t = (795500 + speed / 2) / speed;
416		speed = (795500 + t / 2) / t;
417		t = (256 - t) | 0x80;
418	} else {
419		t = (397700 + speed / 2) / speed;
420		speed = (397700 + t / 2) / t;
421		t = 128 - t;
422	}
423	*spd = speed;
424	return t & 0x000000ff;
425}
426
427static u_int8_t
428ess_calcspeed9(int *spd)
429{
430	int speed, s0, s1, use0;
431	u_int8_t t0, t1;
432
433	/* rate = source / (256 - divisor) */
434	/* divisor = 256 - (source / rate) */
435	speed = *spd;
436	t0 = 128 - (793800 / speed);
437	s0 = 793800 / (128 - t0);
438
439	t1 = 128 - (768000 / speed);
440	s1 = 768000 / (128 - t1);
441	t1 |= 0x80;
442
443	use0 = (ABS(speed - s0) < ABS(speed - s1))? 1 : 0;
444
445	*spd = use0? s0 : s1;
446	return use0? t0 : t1;
447}
448
449static u_int8_t
450ess_calcfilter(int spd)
451{
452	int cutoff;
453
454	/* cutoff = 7160000 / (256 - divisor) */
455	/* divisor = 256 - (7160000 / cutoff) */
456	cutoff = (spd * 9 * 82) / 20;
457	return (256 - (7160000 / cutoff));
458}
459
460static int
461ess_setupch(struct ess_info *sc, int ch, int dir, int spd, u_int32_t fmt, int len)
462{
463	int play = (dir == PCMDIR_PLAY)? 1 : 0;
464	int b16 = (fmt & AFMT_16BIT)? 1 : 0;
465	int stereo = (AFMT_CHANNEL(fmt) > 1)? 1 : 0;
466	int unsign = (fmt == AFMT_U8 || fmt == AFMT_U16_LE)? 1 : 0;
467	u_int8_t spdval, fmtval;
468
469
470	spdval = (sc->newspeed)? ess_calcspeed9(&spd) : ess_calcspeed8(&spd);
471	len = -len;
472
473	if (ch == 1) {
474		KASSERT((dir == PCMDIR_PLAY) || (dir == PCMDIR_REC), ("ess_setupch: dir1 bad"));
475		/* transfer length low */
476		ess_write(sc, 0xa4, len & 0x00ff);
477		/* transfer length high */
478		ess_write(sc, 0xa5, (len & 0xff00) >> 8);
479		/* autoinit, dma dir */
480		ess_write(sc, 0xb8, 0x04 | (play? 0x00 : 0x0a));
481		/* mono/stereo */
482		ess_write(sc, 0xa8, (ess_read(sc, 0xa8) & ~0x03) | (stereo? 0x01 : 0x02));
483		/* demand mode, 4 bytes/xfer */
484		ess_write(sc, 0xb9, 0x02);
485		/* sample rate */
486        	ess_write(sc, 0xa1, spdval);
487		/* filter cutoff */
488		ess_write(sc, 0xa2, ess_calcfilter(spd));
489		/* setup dac/adc */
490		if (play)
491			ess_write(sc, 0xb6, unsign? 0x80 : 0x00);
492		/* mono, b16: signed, load signal */
493		ess_write(sc, 0xb7, 0x51 | (unsign? 0x00 : 0x20));
494		/* setup fifo */
495		ess_write(sc, 0xb7, 0x90 | (unsign? 0x00 : 0x20) |
496					   (b16? 0x04 : 0x00) |
497					   (stereo? 0x08 : 0x40));
498		/* irq control */
499		ess_write(sc, 0xb1, (ess_read(sc, 0xb1) & 0x0f) | 0x50);
500		/* drq control */
501		ess_write(sc, 0xb2, (ess_read(sc, 0xb2) & 0x0f) | 0x50);
502	} else if (ch == 2) {
503		KASSERT(dir == PCMDIR_PLAY, ("ess_setupch: dir2 bad"));
504		/* transfer length low */
505		ess_setmixer(sc, 0x74, len & 0x00ff);
506		/* transfer length high */
507		ess_setmixer(sc, 0x76, (len & 0xff00) >> 8);
508		/* autoinit, 4 bytes/req */
509		ess_setmixer(sc, 0x78, 0x90);
510		fmtval = b16 | (stereo << 1) | (unsign << 2);
511		/* enable irq, set format */
512		ess_setmixer(sc, 0x7a, 0x40 | fmtval);
513		if (sc->newspeed) {
514			/* sample rate */
515			ess_setmixer(sc, 0x70, spdval);
516			/* filter cutoff */
517			ess_setmixer(sc, 0x72, ess_calcfilter(spd));
518		}
519	}
520
521	return 0;
522}
523static int
524ess_start(struct ess_chinfo *ch)
525{
526	struct ess_info *sc = ch->parent;
527    	int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
528
529	ess_lock(sc);
530	ess_setupch(sc, ch->hwch, ch->dir, ch->spd, ch->fmt, ch->blksz);
531	ch->stopping = 0;
532	if (ch->hwch == 1)
533		ess_write(sc, 0xb8, ess_read(sc, 0xb8) | 0x01);
534	else
535		ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) | 0x03);
536	if (play)
537		ess_cmd(sc, DSP_CMD_SPKON);
538	ess_unlock(sc);
539	return 0;
540}
541
542static int
543ess_stop(struct ess_chinfo *ch)
544{
545	struct ess_info *sc = ch->parent;
546    	int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
547
548	ess_lock(sc);
549	ch->stopping = 1;
550	if (ch->hwch == 1)
551		ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x04);
552	else
553		ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) & ~0x10);
554	if (play)
555		ess_cmd(sc, DSP_CMD_SPKOFF);
556	ess_unlock(sc);
557	return 0;
558}
559
560/* -------------------------------------------------------------------- */
561/* channel interface for ESS18xx */
562static void *
563esschan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
564{
565	struct ess_info *sc = devinfo;
566	struct ess_chinfo *ch = (dir == PCMDIR_PLAY)? &sc->pch : &sc->rch;
567
568	ch->parent = sc;
569	ch->channel = c;
570	ch->buffer = b;
571	if (sndbuf_alloc(ch->buffer, sc->parent_dmat, 0, sc->bufsize) != 0)
572		return NULL;
573	ch->dir = dir;
574	ch->hwch = 1;
575	if ((dir == PCMDIR_PLAY) && (sc->duplex))
576		ch->hwch = 2;
577	sndbuf_dmasetup(ch->buffer, (ch->hwch == 1)? sc->drq1 : sc->drq2);
578	return ch;
579}
580
581static int
582esschan_setformat(kobj_t obj, void *data, u_int32_t format)
583{
584	struct ess_chinfo *ch = data;
585
586	ch->fmt = format;
587	return 0;
588}
589
590static u_int32_t
591esschan_setspeed(kobj_t obj, void *data, u_int32_t speed)
592{
593	struct ess_chinfo *ch = data;
594	struct ess_info *sc = ch->parent;
595
596	ch->spd = speed;
597	if (sc->newspeed)
598		ess_calcspeed9(&ch->spd);
599	else
600		ess_calcspeed8(&ch->spd);
601	return ch->spd;
602}
603
604static u_int32_t
605esschan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
606{
607	struct ess_chinfo *ch = data;
608
609	ch->blksz = blocksize;
610	return ch->blksz;
611}
612
613static int
614esschan_trigger(kobj_t obj, void *data, int go)
615{
616	struct ess_chinfo *ch = data;
617
618	if (!PCMTRIG_COMMON(go))
619		return 0;
620
621	switch (go) {
622	case PCMTRIG_START:
623		ch->run = 1;
624		sndbuf_dma(ch->buffer, go);
625		ess_start(ch);
626		break;
627
628	case PCMTRIG_STOP:
629	case PCMTRIG_ABORT:
630	default:
631		ess_stop(ch);
632		break;
633	}
634	return 0;
635}
636
637static u_int32_t
638esschan_getptr(kobj_t obj, void *data)
639{
640	struct ess_chinfo *ch = data;
641
642	return sndbuf_dmaptr(ch->buffer);
643}
644
645static struct pcmchan_caps *
646esschan_getcaps(kobj_t obj, void *data)
647{
648	struct ess_chinfo *ch = data;
649
650	return (ch->dir == PCMDIR_PLAY)? &ess_playcaps : &ess_reccaps;
651}
652
653static kobj_method_t esschan_methods[] = {
654    	KOBJMETHOD(channel_init,		esschan_init),
655    	KOBJMETHOD(channel_setformat,		esschan_setformat),
656    	KOBJMETHOD(channel_setspeed,		esschan_setspeed),
657    	KOBJMETHOD(channel_setblocksize,	esschan_setblocksize),
658    	KOBJMETHOD(channel_trigger,		esschan_trigger),
659    	KOBJMETHOD(channel_getptr,		esschan_getptr),
660    	KOBJMETHOD(channel_getcaps,		esschan_getcaps),
661	KOBJMETHOD_END
662};
663CHANNEL_DECLARE(esschan);
664
665/************************************************************/
666
667static int
668essmix_init(struct snd_mixer *m)
669{
670    	struct ess_info *sc = mix_getdevinfo(m);
671
672	mix_setrecdevs(m, SOUND_MASK_CD | SOUND_MASK_MIC | SOUND_MASK_LINE |
673			  SOUND_MASK_IMIX);
674
675	mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_LINE |
676		       SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_VOLUME |
677		       SOUND_MASK_LINE1 | SOUND_MASK_SPEAKER);
678
679	ess_setmixer(sc, 0, 0); /* reset */
680
681	return 0;
682}
683
684static int
685essmix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
686{
687    	struct ess_info *sc = mix_getdevinfo(m);
688    	int preg = 0, rreg = 0, l, r;
689
690	l = (left * 15) / 100;
691	r = (right * 15) / 100;
692	switch (dev) {
693	case SOUND_MIXER_SYNTH:
694		preg = 0x36;
695		rreg = 0x6b;
696		break;
697
698	case SOUND_MIXER_PCM:
699		preg = 0x14;
700		rreg = 0x7c;
701		break;
702
703	case SOUND_MIXER_LINE:
704		preg = 0x3e;
705		rreg = 0x6e;
706		break;
707
708	case SOUND_MIXER_MIC:
709		preg = 0x1a;
710		rreg = 0x68;
711		break;
712
713	case SOUND_MIXER_LINE1:
714		preg = 0x3a;
715		rreg = 0x6c;
716		break;
717
718	case SOUND_MIXER_CD:
719		preg = 0x38;
720		rreg = 0x6a;
721		break;
722
723	case SOUND_MIXER_SPEAKER:
724		preg = 0x3c;
725		break;
726
727 	case SOUND_MIXER_VOLUME:
728		l = left? (left * 63) / 100 : 64;
729		r = right? (right * 63) / 100 : 64;
730		ess_setmixer(sc, 0x60, l);
731		ess_setmixer(sc, 0x62, r);
732		left = (l == 64)? 0 : (l * 100) / 63;
733		right = (r == 64)? 0 : (r * 100) / 63;
734    		return left | (right << 8);
735	}
736
737	if (preg)
738		ess_setmixer(sc, preg, (l << 4) | r);
739	if (rreg)
740		ess_setmixer(sc, rreg, (l << 4) | r);
741
742	left = (l * 100) / 15;
743	right = (r * 100) / 15;
744
745    	return left | (right << 8);
746}
747
748static u_int32_t
749essmix_setrecsrc(struct snd_mixer *m, u_int32_t src)
750{
751    	struct ess_info *sc = mix_getdevinfo(m);
752    	u_char recdev;
753
754    	switch (src) {
755	case SOUND_MASK_CD:
756		recdev = 0x02;
757		break;
758
759	case SOUND_MASK_LINE:
760		recdev = 0x06;
761		break;
762
763	case SOUND_MASK_IMIX:
764		recdev = 0x05;
765		break;
766
767	case SOUND_MASK_MIC:
768	default:
769		recdev = 0x00;
770		src = SOUND_MASK_MIC;
771		break;
772	}
773
774	ess_setmixer(sc, 0x1c, recdev);
775
776	return src;
777}
778
779static kobj_method_t essmixer_methods[] = {
780    	KOBJMETHOD(mixer_init,		essmix_init),
781    	KOBJMETHOD(mixer_set,		essmix_set),
782    	KOBJMETHOD(mixer_setrecsrc,	essmix_setrecsrc),
783	KOBJMETHOD_END
784};
785MIXER_DECLARE(essmixer);
786
787/************************************************************/
788
789static int
790ess_probe(device_t dev)
791{
792	uintptr_t func, ver, r, f;
793
794	/* The parent device has already been probed. */
795	r = BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func);
796	if (func != SCF_PCM)
797		return (ENXIO);
798
799	r = BUS_READ_IVAR(device_get_parent(dev), dev, 1, &ver);
800	f = (ver & 0xffff0000) >> 16;
801	if (!(f & BD_F_ESS))
802		return (ENXIO);
803
804    	device_set_desc(dev, "ESS 18xx DSP");
805
806	return 0;
807}
808
809static int
810ess_attach(device_t dev)
811{
812    	struct ess_info *sc;
813    	char status[SND_STATUSLEN], buf[64];
814	int ver;
815
816    	sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO);
817	sc->parent_dev = device_get_parent(dev);
818	sc->bufsize = pcm_getbuffersize(dev, 4096, ESS_BUFFSIZE, 65536);
819    	if (ess_alloc_resources(sc, dev))
820		goto no;
821    	if (ess_reset_dsp(sc))
822		goto no;
823    	if (mixer_init(dev, &essmixer_class, sc))
824		goto no;
825
826	sc->duplex = 0;
827	sc->newspeed = 0;
828	ver = (ess_getmixer(sc, 0x40) << 8) | ess_rd(sc, SB_MIX_DATA);
829	snprintf(buf, sizeof buf, "ESS %x DSP", ver);
830	device_set_desc_copy(dev, buf);
831	if (bootverbose)
832		device_printf(dev, "ESS%x detected", ver);
833
834	switch (ver) {
835	case 0x1869:
836	case 0x1879:
837#ifdef ESS18XX_DUPLEX
838		sc->duplex = sc->drq2? 1 : 0;
839#endif
840#ifdef ESS18XX_NEWSPEED
841		sc->newspeed = 1;
842#endif
843		break;
844	}
845	if (bootverbose)
846		printf("%s%s\n", sc->duplex? ", duplex" : "",
847				 sc->newspeed? ", newspeed" : "");
848
849	if (sc->newspeed)
850		ess_setmixer(sc, 0x71, 0x22);
851
852	snd_setup_intr(dev, sc->irq, 0, ess_intr, sc, &sc->ih);
853    	if (!sc->duplex)
854		pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
855
856    	if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2,
857			/*boundary*/0,
858			/*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
859			/*highaddr*/BUS_SPACE_MAXADDR,
860			/*filter*/NULL, /*filterarg*/NULL,
861			/*maxsize*/sc->bufsize, /*nsegments*/1,
862			/*maxsegz*/0x3ffff,
863			/*flags*/0, /*lockfunc*/busdma_lock_mutex,
864			/*lockarg*/&Giant, &sc->parent_dmat) != 0) {
865		device_printf(dev, "unable to create dma tag\n");
866		goto no;
867    	}
868
869    	if (sc->drq2)
870		snprintf(buf, SND_STATUSLEN, ":%ld", rman_get_start(sc->drq2));
871	else
872		buf[0] = '\0';
873
874    	snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld drq %ld%s bufsz %u %s",
875    	     	rman_get_start(sc->io_base), rman_get_start(sc->irq),
876		rman_get_start(sc->drq1), buf, sc->bufsize,
877		PCM_KLDSTRING(snd_ess));
878
879    	if (pcm_register(dev, sc, 1, 1))
880		goto no;
881      	pcm_addchan(dev, PCMDIR_REC, &esschan_class, sc);
882	pcm_addchan(dev, PCMDIR_PLAY, &esschan_class, sc);
883	pcm_setstatus(dev, status);
884
885    	return 0;
886
887no:
888    	ess_release_resources(sc, dev);
889    	return ENXIO;
890}
891
892static int
893ess_detach(device_t dev)
894{
895	int r;
896	struct ess_info *sc;
897
898	r = pcm_unregister(dev);
899	if (r)
900		return r;
901
902	sc = pcm_getdevinfo(dev);
903    	ess_release_resources(sc, dev);
904	return 0;
905}
906
907static int
908ess_resume(device_t dev)
909{
910	struct ess_info *sc;
911
912	sc = pcm_getdevinfo(dev);
913
914	if (ess_reset_dsp(sc)) {
915		device_printf(dev, "unable to reset DSP at resume\n");
916		return ENXIO;
917	}
918
919	if (mixer_reinit(dev)) {
920		device_printf(dev, "unable to reinitialize mixer at resume\n");
921		return ENXIO;
922	}
923
924	return 0;
925}
926
927static device_method_t ess_methods[] = {
928	/* Device interface */
929	DEVMETHOD(device_probe,		ess_probe),
930	DEVMETHOD(device_attach,	ess_attach),
931	DEVMETHOD(device_detach,	ess_detach),
932	DEVMETHOD(device_resume,	ess_resume),
933
934	{ 0, 0 }
935};
936
937static driver_t ess_driver = {
938	"pcm",
939	ess_methods,
940	PCM_SOFTC_SIZE,
941};
942
943DRIVER_MODULE(snd_ess, sbc, ess_driver, pcm_devclass, 0, 0);
944MODULE_DEPEND(snd_ess, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
945MODULE_DEPEND(snd_ess, snd_sbc, 1, 1, 1);
946MODULE_VERSION(snd_ess, 1);
947
948/************************************************************/
949
950static devclass_t esscontrol_devclass;
951
952static struct isa_pnp_id essc_ids[] = {
953	{0x06007316, "ESS Control"},
954	{0}
955};
956
957static int
958esscontrol_probe(device_t dev)
959{
960	int i;
961
962	i = ISA_PNP_PROBE(device_get_parent(dev), dev, essc_ids);
963	if (i == 0)
964		device_quiet(dev);
965	return i;
966}
967
968static int
969esscontrol_attach(device_t dev)
970{
971#ifdef notyet
972    	struct resource *io;
973	int rid, i, x;
974
975	rid = 0;
976    	io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
977	x = 0;
978	for (i = 0; i < 0x100; i++) {
979		port_wr(io, 0, i);
980		x = port_rd(io, 1);
981		if ((i & 0x0f) == 0)
982			printf("%3.3x: ", i);
983		printf("%2.2x ", x);
984		if ((i & 0x0f) == 0x0f)
985			printf("\n");
986	}
987	bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
988	io = NULL;
989#endif
990
991    	return 0;
992}
993
994static int
995esscontrol_detach(device_t dev)
996{
997	return 0;
998}
999
1000static device_method_t esscontrol_methods[] = {
1001	/* Device interface */
1002	DEVMETHOD(device_probe,		esscontrol_probe),
1003	DEVMETHOD(device_attach,	esscontrol_attach),
1004	DEVMETHOD(device_detach,	esscontrol_detach),
1005
1006	{ 0, 0 }
1007};
1008
1009static driver_t esscontrol_driver = {
1010	"esscontrol",
1011	esscontrol_methods,
1012	1,
1013};
1014
1015DRIVER_MODULE(esscontrol, isa, esscontrol_driver, esscontrol_devclass, 0, 0);
1016DRIVER_MODULE(esscontrol, acpi, esscontrol_driver, esscontrol_devclass, 0, 0);
1017