sys/dev/sound/isa/ess.c

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