The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/sound/isa/ess.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
    5  * Copyright (c) 1997,1998 Luigi Rizzo
    6  *
    7  * Derived from files in the Voxware 3.5 distribution,
    8  * Copyright by Hannu Savolainen 1994, under the same copyright
    9  * conditions.
   10  * All rights reserved.
   11  *
   12  * Redistribution and use in source and binary forms, with or without
   13  * modification, are permitted provided that the following conditions
   14  * are met:
   15  * 1. Redistributions of source code must retain the above copyright
   16  *    notice, this list of conditions and the following disclaimer.
   17  * 2. Redistributions in binary form must reproduce the above copyright
   18  *    notice, this list of conditions and the following disclaimer in the
   19  *    documentation and/or other materials provided with the distribution.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   31  * SUCH DAMAGE.
   32  */
   33 
   34 #ifdef HAVE_KERNEL_OPTION_HEADERS
   35 #include "opt_snd.h"
   36 #endif
   37 
   38 #include <dev/sound/pcm/sound.h>
   39 
   40 #include  <dev/sound/isa/sb.h>
   41 #include  <dev/sound/chip.h>
   42 
   43 #include <isa/isavar.h>
   44 
   45 #include "mixer_if.h"
   46 
   47 SND_DECLARE_FILE("$FreeBSD$");
   48 
   49 #define ESS_BUFFSIZE (4096)
   50 #define ABS(x) (((x) < 0)? -(x) : (x))
   51 
   52 /* audio2 never generates irqs and sounds very noisy */
   53 #undef ESS18XX_DUPLEX
   54 
   55 /* more accurate clocks and split audio1/audio2 rates */
   56 #define ESS18XX_NEWSPEED
   57 
   58 static u_int32_t ess_pfmt[] = {
   59         SND_FORMAT(AFMT_U8, 1, 0),
   60         SND_FORMAT(AFMT_U8, 2, 0),
   61         SND_FORMAT(AFMT_S8, 1, 0),
   62         SND_FORMAT(AFMT_S8, 2, 0),
   63         SND_FORMAT(AFMT_S16_LE, 1, 0),
   64         SND_FORMAT(AFMT_S16_LE, 2, 0),
   65         SND_FORMAT(AFMT_U16_LE, 1, 0),
   66         SND_FORMAT(AFMT_U16_LE, 2, 0),
   67         0
   68 };
   69 
   70 static struct pcmchan_caps ess_playcaps = {6000, 48000, ess_pfmt, 0};
   71 
   72 static u_int32_t ess_rfmt[] = {
   73         SND_FORMAT(AFMT_U8, 1, 0),
   74         SND_FORMAT(AFMT_U8, 2, 0),
   75         SND_FORMAT(AFMT_S8, 1, 0),
   76         SND_FORMAT(AFMT_S8, 2, 0),
   77         SND_FORMAT(AFMT_S16_LE, 1, 0),
   78         SND_FORMAT(AFMT_S16_LE, 2, 0),
   79         SND_FORMAT(AFMT_U16_LE, 1, 0),
   80         SND_FORMAT(AFMT_U16_LE, 2, 0),
   81         0
   82 };
   83 
   84 static struct pcmchan_caps ess_reccaps = {6000, 48000, ess_rfmt, 0};
   85 
   86 struct ess_info;
   87 
   88 struct ess_chinfo {
   89         struct ess_info *parent;
   90         struct pcm_channel *channel;
   91         struct snd_dbuf *buffer;
   92         int dir, hwch, stopping, run;
   93         u_int32_t fmt, spd, blksz;
   94 };
   95 
   96 struct ess_info {
   97         device_t parent_dev;
   98         struct resource *io_base;       /* I/O address for the board */
   99         struct resource *irq;
  100         struct resource *drq1;
  101         struct resource *drq2;
  102         void *ih;
  103         bus_dma_tag_t parent_dmat;
  104 
  105         unsigned int bufsize;
  106         int type;
  107         unsigned int duplex:1, newspeed:1;
  108         u_long bd_flags;       /* board-specific flags */
  109         struct ess_chinfo pch, rch;
  110 };
  111 
  112 #if 0
  113 static int ess_rd(struct ess_info *sc, int reg);
  114 static void ess_wr(struct ess_info *sc, int reg, u_int8_t val);
  115 static int ess_dspready(struct ess_info *sc);
  116 static int ess_cmd(struct ess_info *sc, u_char val);
  117 static int ess_cmd1(struct ess_info *sc, u_char cmd, int val);
  118 static int ess_get_byte(struct ess_info *sc);
  119 static void ess_setmixer(struct ess_info *sc, u_int port, u_int value);
  120 static int ess_getmixer(struct ess_info *sc, u_int port);
  121 static int ess_reset_dsp(struct ess_info *sc);
  122 
  123 static int ess_write(struct ess_info *sc, u_char reg, int val);
  124 static int ess_read(struct ess_info *sc, u_char reg);
  125 
  126 static void ess_intr(void *arg);
  127 static int ess_setupch(struct ess_info *sc, int ch, int dir, int spd, u_int32_t fmt, int len);
  128 static int ess_start(struct ess_chinfo *ch);
  129 static int ess_stop(struct ess_chinfo *ch);
  130 #endif
  131 
  132 /*
  133  * Common code for the midi and pcm functions
  134  *
  135  * ess_cmd write a single byte to the CMD port.
  136  * ess_cmd1 write a CMD + 1 byte arg
  137  * ess_cmd2 write a CMD + 2 byte arg
  138  * ess_get_byte returns a single byte from the DSP data port
  139  *
  140  * ess_write is actually ess_cmd1
  141  * ess_read access ext. regs via ess_cmd(0xc0, reg) followed by ess_get_byte
  142  */
  143 
  144 static void
  145 ess_lock(struct ess_info *sc) {
  146 
  147         sbc_lock(device_get_softc(sc->parent_dev));
  148 }
  149 
  150 static void
  151 ess_unlock(struct ess_info *sc) {
  152 
  153         sbc_unlock(device_get_softc(sc->parent_dev));
  154 }
  155 
  156 static int
  157 port_rd(struct resource *port, int off)
  158 {
  159         return bus_space_read_1(rman_get_bustag(port),
  160                                 rman_get_bushandle(port),
  161                                 off);
  162 }
  163 
  164 static void
  165 port_wr(struct resource *port, int off, u_int8_t data)
  166 {
  167         bus_space_write_1(rman_get_bustag(port),
  168                           rman_get_bushandle(port),
  169                           off, data);
  170 }
  171 
  172 static int
  173 ess_rd(struct ess_info *sc, int reg)
  174 {
  175         return port_rd(sc->io_base, reg);
  176 }
  177 
  178 static void
  179 ess_wr(struct ess_info *sc, int reg, u_int8_t val)
  180 {
  181         port_wr(sc->io_base, reg, val);
  182 }
  183 
  184 static int
  185 ess_dspready(struct ess_info *sc)
  186 {
  187         return ((ess_rd(sc, SBDSP_STATUS) & 0x80) == 0);
  188 }
  189 
  190 static int
  191 ess_dspwr(struct ess_info *sc, u_char val)
  192 {
  193         int  i;
  194 
  195         for (i = 0; i < 1000; i++) {
  196                 if (ess_dspready(sc)) {
  197                         ess_wr(sc, SBDSP_CMD, val);
  198                         return 1;
  199                 }
  200                 if (i > 10) DELAY((i > 100)? 1000 : 10);
  201         }
  202         printf("ess_dspwr(0x%02x) timed out.\n", val);
  203         return 0;
  204 }
  205 
  206 static int
  207 ess_cmd(struct ess_info *sc, u_char val)
  208 {
  209 #if 0
  210         printf("ess_cmd: %x\n", val);
  211 #endif
  212         return ess_dspwr(sc, val);
  213 }
  214 
  215 static int
  216 ess_cmd1(struct ess_info *sc, u_char cmd, int val)
  217 {
  218 #if 0
  219         printf("ess_cmd1: %x, %x\n", cmd, val);
  220 #endif
  221         if (ess_dspwr(sc, cmd)) {
  222                 return ess_dspwr(sc, val & 0xff);
  223         } else return 0;
  224 }
  225 
  226 static void
  227 ess_setmixer(struct ess_info *sc, u_int port, u_int value)
  228 {
  229         DEB(printf("ess_setmixer: reg=%x, val=%x\n", port, value);)
  230         ess_wr(sc, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
  231         DELAY(10);
  232         ess_wr(sc, SB_MIX_DATA, (u_char) (value & 0xff));
  233         DELAY(10);
  234 }
  235 
  236 static int
  237 ess_getmixer(struct ess_info *sc, u_int port)
  238 {
  239         int val;
  240         ess_wr(sc, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
  241         DELAY(10);
  242         val = ess_rd(sc, SB_MIX_DATA);
  243         DELAY(10);
  244 
  245         return val;
  246 }
  247 
  248 static int
  249 ess_get_byte(struct ess_info *sc)
  250 {
  251         int i;
  252 
  253         for (i = 1000; i > 0; i--) {
  254                 if (ess_rd(sc, DSP_DATA_AVAIL) & 0x80)
  255                         return ess_rd(sc, DSP_READ);
  256                 else
  257                         DELAY(20);
  258         }
  259         return -1;
  260 }
  261 
  262 static int
  263 ess_write(struct ess_info *sc, u_char reg, int val)
  264 {
  265         return ess_cmd1(sc, reg, val);
  266 }
  267 
  268 static int
  269 ess_read(struct ess_info *sc, u_char reg)
  270 {
  271         return (ess_cmd(sc, 0xc0) && ess_cmd(sc, reg))? ess_get_byte(sc) : -1;
  272 }
  273 
  274 static int
  275 ess_reset_dsp(struct ess_info *sc)
  276 {
  277         ess_wr(sc, SBDSP_RST, 3);
  278         DELAY(100);
  279         ess_wr(sc, SBDSP_RST, 0);
  280         if (ess_get_byte(sc) != 0xAA) {
  281                 DEB(printf("ess_reset_dsp 0x%lx failed\n",
  282                            rman_get_start(sc->io_base)));
  283                 return ENXIO;   /* Sorry */
  284         }
  285         ess_cmd(sc, 0xc6);
  286         return 0;
  287 }
  288 
  289 static void
  290 ess_release_resources(struct ess_info *sc, device_t dev)
  291 {
  292         if (sc->irq) {
  293                 if (sc->ih)
  294                         bus_teardown_intr(dev, sc->irq, sc->ih);
  295                 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq);
  296                 sc->irq = NULL;
  297         }
  298         if (sc->drq1) {
  299                 isa_dma_release(rman_get_start(sc->drq1));
  300                 bus_release_resource(dev, SYS_RES_DRQ, 0, sc->drq1);
  301                 sc->drq1 = NULL;
  302         }
  303         if (sc->drq2) {
  304                 isa_dma_release(rman_get_start(sc->drq2));
  305                 bus_release_resource(dev, SYS_RES_DRQ, 1, sc->drq2);
  306                 sc->drq2 = NULL;
  307         }
  308         if (sc->io_base) {
  309                 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->io_base);
  310                 sc->io_base = NULL;
  311         }
  312         if (sc->parent_dmat) {
  313                 bus_dma_tag_destroy(sc->parent_dmat);
  314                 sc->parent_dmat = 0;
  315         }
  316         free(sc, M_DEVBUF);
  317 }
  318 
  319 static int
  320 ess_alloc_resources(struct ess_info *sc, device_t dev)
  321 {
  322         int rid;
  323 
  324         rid = 0;
  325         if (!sc->io_base)
  326                 sc->io_base = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
  327                                                      &rid, RF_ACTIVE);
  328         rid = 0;
  329         if (!sc->irq)
  330                 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
  331                                                  &rid, RF_ACTIVE);
  332         rid = 0;
  333         if (!sc->drq1)
  334                 sc->drq1 = bus_alloc_resource_any(dev, SYS_RES_DRQ,
  335                                                   &rid, RF_ACTIVE);
  336         rid = 1;
  337         if (!sc->drq2)
  338                 sc->drq2 = bus_alloc_resource_any(dev, SYS_RES_DRQ,
  339                                                   &rid, RF_ACTIVE);
  340 
  341         if (sc->io_base && sc->drq1 && sc->irq) {
  342                 isa_dma_acquire(rman_get_start(sc->drq1));
  343                 isa_dmainit(rman_get_start(sc->drq1), sc->bufsize);
  344 
  345                 if (sc->drq2) {
  346                         isa_dma_acquire(rman_get_start(sc->drq2));
  347                         isa_dmainit(rman_get_start(sc->drq2), sc->bufsize);
  348                 }
  349 
  350                 return 0;
  351         } else return ENXIO;
  352 }
  353 
  354 static void
  355 ess_intr(void *arg)
  356 {
  357         struct ess_info *sc = (struct ess_info *)arg;
  358         int src, pirq, rirq;
  359 
  360         ess_lock(sc);
  361         src = 0;
  362         if (ess_getmixer(sc, 0x7a) & 0x80)
  363                 src |= 2;
  364         if (ess_rd(sc, 0x0c) & 0x01)
  365                 src |= 1;
  366 
  367         pirq = (src & sc->pch.hwch)? 1 : 0;
  368         rirq = (src & sc->rch.hwch)? 1 : 0;
  369 
  370         if (pirq) {
  371                 if (sc->pch.run) {
  372                         ess_unlock(sc);
  373                         chn_intr(sc->pch.channel);
  374                         ess_lock(sc);
  375                 }
  376                 if (sc->pch.stopping) {
  377                         sc->pch.run = 0;
  378                         sndbuf_dma(sc->pch.buffer, PCMTRIG_STOP);
  379                         sc->pch.stopping = 0;
  380                         if (sc->pch.hwch == 1)
  381                                 ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x01);
  382                         else
  383                                 ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) & ~0x03);
  384                 }
  385         }
  386 
  387         if (rirq) {
  388                 if (sc->rch.run) {
  389                         ess_unlock(sc);
  390                         chn_intr(sc->rch.channel);
  391                         ess_lock(sc);
  392                 }
  393                 if (sc->rch.stopping) {
  394                         sc->rch.run = 0;
  395                         sndbuf_dma(sc->rch.buffer, PCMTRIG_STOP);
  396                         sc->rch.stopping = 0;
  397                         /* XXX: will this stop audio2? */
  398                         ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x01);
  399                 }
  400         }
  401 
  402         if (src & 2)
  403                 ess_setmixer(sc, 0x7a, ess_getmixer(sc, 0x7a) & ~0x80);
  404         if (src & 1)
  405                 ess_rd(sc, DSP_DATA_AVAIL);
  406         ess_unlock(sc);
  407 }
  408 
  409 /* utility functions for ESS */
  410 static u_int8_t
  411 ess_calcspeed8(int *spd)
  412 {
  413         int speed = *spd;
  414         u_int32_t t;
  415 
  416         if (speed > 22000) {
  417                 t = (795500 + speed / 2) / speed;
  418                 speed = (795500 + t / 2) / t;
  419                 t = (256 - t) | 0x80;
  420         } else {
  421                 t = (397700 + speed / 2) / speed;
  422                 speed = (397700 + t / 2) / t;
  423                 t = 128 - t;
  424         }
  425         *spd = speed;
  426         return t & 0x000000ff;
  427 }
  428 
  429 static u_int8_t
  430 ess_calcspeed9(int *spd)
  431 {
  432         int speed, s0, s1, use0;
  433         u_int8_t t0, t1;
  434 
  435         /* rate = source / (256 - divisor) */
  436         /* divisor = 256 - (source / rate) */
  437         speed = *spd;
  438         t0 = 128 - (793800 / speed);
  439         s0 = 793800 / (128 - t0);
  440 
  441         t1 = 128 - (768000 / speed);
  442         s1 = 768000 / (128 - t1);
  443         t1 |= 0x80;
  444 
  445         use0 = (ABS(speed - s0) < ABS(speed - s1))? 1 : 0;
  446 
  447         *spd = use0? s0 : s1;
  448         return use0? t0 : t1;
  449 }
  450 
  451 static u_int8_t
  452 ess_calcfilter(int spd)
  453 {
  454         int cutoff;
  455 
  456         /* cutoff = 7160000 / (256 - divisor) */
  457         /* divisor = 256 - (7160000 / cutoff) */
  458         cutoff = (spd * 9 * 82) / 20;
  459         return (256 - (7160000 / cutoff));
  460 }
  461 
  462 static int
  463 ess_setupch(struct ess_info *sc, int ch, int dir, int spd, u_int32_t fmt, int len)
  464 {
  465         int play = (dir == PCMDIR_PLAY)? 1 : 0;
  466         int b16 = (fmt & AFMT_16BIT)? 1 : 0;
  467         int stereo = (AFMT_CHANNEL(fmt) > 1)? 1 : 0;
  468         int unsign = (fmt == AFMT_U8 || fmt == AFMT_U16_LE)? 1 : 0;
  469         u_int8_t spdval, fmtval;
  470 
  471 
  472         spdval = (sc->newspeed)? ess_calcspeed9(&spd) : ess_calcspeed8(&spd);
  473         len = -len;
  474 
  475         if (ch == 1) {
  476                 KASSERT((dir == PCMDIR_PLAY) || (dir == PCMDIR_REC), ("ess_setupch: dir1 bad"));
  477                 /* transfer length low */
  478                 ess_write(sc, 0xa4, len & 0x00ff);
  479                 /* transfer length high */
  480                 ess_write(sc, 0xa5, (len & 0xff00) >> 8);
  481                 /* autoinit, dma dir */
  482                 ess_write(sc, 0xb8, 0x04 | (play? 0x00 : 0x0a));
  483                 /* mono/stereo */
  484                 ess_write(sc, 0xa8, (ess_read(sc, 0xa8) & ~0x03) | (stereo? 0x01 : 0x02));
  485                 /* demand mode, 4 bytes/xfer */
  486                 ess_write(sc, 0xb9, 0x02);
  487                 /* sample rate */
  488                 ess_write(sc, 0xa1, spdval);
  489                 /* filter cutoff */
  490                 ess_write(sc, 0xa2, ess_calcfilter(spd));
  491                 /* setup dac/adc */
  492                 if (play)
  493                         ess_write(sc, 0xb6, unsign? 0x80 : 0x00);
  494                 /* mono, b16: signed, load signal */
  495                 ess_write(sc, 0xb7, 0x51 | (unsign? 0x00 : 0x20));
  496                 /* setup fifo */
  497                 ess_write(sc, 0xb7, 0x90 | (unsign? 0x00 : 0x20) |
  498                                            (b16? 0x04 : 0x00) |
  499                                            (stereo? 0x08 : 0x40));
  500                 /* irq control */
  501                 ess_write(sc, 0xb1, (ess_read(sc, 0xb1) & 0x0f) | 0x50);
  502                 /* drq control */
  503                 ess_write(sc, 0xb2, (ess_read(sc, 0xb2) & 0x0f) | 0x50);
  504         } else if (ch == 2) {
  505                 KASSERT(dir == PCMDIR_PLAY, ("ess_setupch: dir2 bad"));
  506                 /* transfer length low */
  507                 ess_setmixer(sc, 0x74, len & 0x00ff);
  508                 /* transfer length high */
  509                 ess_setmixer(sc, 0x76, (len & 0xff00) >> 8);
  510                 /* autoinit, 4 bytes/req */
  511                 ess_setmixer(sc, 0x78, 0x90);
  512                 fmtval = b16 | (stereo << 1) | (unsign << 2);
  513                 /* enable irq, set format */
  514                 ess_setmixer(sc, 0x7a, 0x40 | fmtval);
  515                 if (sc->newspeed) {
  516                         /* sample rate */
  517                         ess_setmixer(sc, 0x70, spdval);
  518                         /* filter cutoff */
  519                         ess_setmixer(sc, 0x72, ess_calcfilter(spd));
  520                 }
  521         }
  522 
  523         return 0;
  524 }
  525 static int
  526 ess_start(struct ess_chinfo *ch)
  527 {
  528         struct ess_info *sc = ch->parent;
  529         int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
  530 
  531         ess_lock(sc);
  532         ess_setupch(sc, ch->hwch, ch->dir, ch->spd, ch->fmt, ch->blksz);
  533         ch->stopping = 0;
  534         if (ch->hwch == 1)
  535                 ess_write(sc, 0xb8, ess_read(sc, 0xb8) | 0x01);
  536         else
  537                 ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) | 0x03);
  538         if (play)
  539                 ess_cmd(sc, DSP_CMD_SPKON);
  540         ess_unlock(sc);
  541         return 0;
  542 }
  543 
  544 static int
  545 ess_stop(struct ess_chinfo *ch)
  546 {
  547         struct ess_info *sc = ch->parent;
  548         int play = (ch->dir == PCMDIR_PLAY)? 1 : 0;
  549 
  550         ess_lock(sc);
  551         ch->stopping = 1;
  552         if (ch->hwch == 1)
  553                 ess_write(sc, 0xb8, ess_read(sc, 0xb8) & ~0x04);
  554         else
  555                 ess_setmixer(sc, 0x78, ess_getmixer(sc, 0x78) & ~0x10);
  556         if (play)
  557                 ess_cmd(sc, DSP_CMD_SPKOFF);
  558         ess_unlock(sc);
  559         return 0;
  560 }
  561 
  562 /* -------------------------------------------------------------------- */
  563 /* channel interface for ESS18xx */
  564 static void *
  565 esschan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
  566 {
  567         struct ess_info *sc = devinfo;
  568         struct ess_chinfo *ch = (dir == PCMDIR_PLAY)? &sc->pch : &sc->rch;
  569 
  570         ch->parent = sc;
  571         ch->channel = c;
  572         ch->buffer = b;
  573         if (sndbuf_alloc(ch->buffer, sc->parent_dmat, 0, sc->bufsize) != 0)
  574                 return NULL;
  575         ch->dir = dir;
  576         ch->hwch = 1;
  577         if ((dir == PCMDIR_PLAY) && (sc->duplex))
  578                 ch->hwch = 2;
  579         sndbuf_dmasetup(ch->buffer, (ch->hwch == 1)? sc->drq1 : sc->drq2);
  580         return ch;
  581 }
  582 
  583 static int
  584 esschan_setformat(kobj_t obj, void *data, u_int32_t format)
  585 {
  586         struct ess_chinfo *ch = data;
  587 
  588         ch->fmt = format;
  589         return 0;
  590 }
  591 
  592 static u_int32_t
  593 esschan_setspeed(kobj_t obj, void *data, u_int32_t speed)
  594 {
  595         struct ess_chinfo *ch = data;
  596         struct ess_info *sc = ch->parent;
  597 
  598         ch->spd = speed;
  599         if (sc->newspeed)
  600                 ess_calcspeed9(&ch->spd);
  601         else
  602                 ess_calcspeed8(&ch->spd);
  603         return ch->spd;
  604 }
  605 
  606 static u_int32_t
  607 esschan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
  608 {
  609         struct ess_chinfo *ch = data;
  610 
  611         ch->blksz = blocksize;
  612         return ch->blksz;
  613 }
  614 
  615 static int
  616 esschan_trigger(kobj_t obj, void *data, int go)
  617 {
  618         struct ess_chinfo *ch = data;
  619 
  620         if (!PCMTRIG_COMMON(go))
  621                 return 0;
  622 
  623         switch (go) {
  624         case PCMTRIG_START:
  625                 ch->run = 1;
  626                 sndbuf_dma(ch->buffer, go);
  627                 ess_start(ch);
  628                 break;
  629 
  630         case PCMTRIG_STOP:
  631         case PCMTRIG_ABORT:
  632         default:
  633                 ess_stop(ch);
  634                 break;
  635         }
  636         return 0;
  637 }
  638 
  639 static u_int32_t
  640 esschan_getptr(kobj_t obj, void *data)
  641 {
  642         struct ess_chinfo *ch = data;
  643 
  644         return sndbuf_dmaptr(ch->buffer);
  645 }
  646 
  647 static struct pcmchan_caps *
  648 esschan_getcaps(kobj_t obj, void *data)
  649 {
  650         struct ess_chinfo *ch = data;
  651 
  652         return (ch->dir == PCMDIR_PLAY)? &ess_playcaps : &ess_reccaps;
  653 }
  654 
  655 static kobj_method_t esschan_methods[] = {
  656         KOBJMETHOD(channel_init,                esschan_init),
  657         KOBJMETHOD(channel_setformat,           esschan_setformat),
  658         KOBJMETHOD(channel_setspeed,            esschan_setspeed),
  659         KOBJMETHOD(channel_setblocksize,        esschan_setblocksize),
  660         KOBJMETHOD(channel_trigger,             esschan_trigger),
  661         KOBJMETHOD(channel_getptr,              esschan_getptr),
  662         KOBJMETHOD(channel_getcaps,             esschan_getcaps),
  663         KOBJMETHOD_END
  664 };
  665 CHANNEL_DECLARE(esschan);
  666 
  667 /************************************************************/
  668 
  669 static int
  670 essmix_init(struct snd_mixer *m)
  671 {
  672         struct ess_info *sc = mix_getdevinfo(m);
  673 
  674         mix_setrecdevs(m, SOUND_MASK_CD | SOUND_MASK_MIC | SOUND_MASK_LINE |
  675                           SOUND_MASK_IMIX);
  676 
  677         mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_LINE |
  678                        SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_VOLUME |
  679                        SOUND_MASK_LINE1 | SOUND_MASK_SPEAKER);
  680 
  681         ess_setmixer(sc, 0, 0); /* reset */
  682 
  683         return 0;
  684 }
  685 
  686 static int
  687 essmix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
  688 {
  689         struct ess_info *sc = mix_getdevinfo(m);
  690         int preg = 0, rreg = 0, l, r;
  691 
  692         l = (left * 15) / 100;
  693         r = (right * 15) / 100;
  694         switch (dev) {
  695         case SOUND_MIXER_SYNTH:
  696                 preg = 0x36;
  697                 rreg = 0x6b;
  698                 break;
  699 
  700         case SOUND_MIXER_PCM:
  701                 preg = 0x14;
  702                 rreg = 0x7c;
  703                 break;
  704 
  705         case SOUND_MIXER_LINE:
  706                 preg = 0x3e;
  707                 rreg = 0x6e;
  708                 break;
  709 
  710         case SOUND_MIXER_MIC:
  711                 preg = 0x1a;
  712                 rreg = 0x68;
  713                 break;
  714 
  715         case SOUND_MIXER_LINE1:
  716                 preg = 0x3a;
  717                 rreg = 0x6c;
  718                 break;
  719 
  720         case SOUND_MIXER_CD:
  721                 preg = 0x38;
  722                 rreg = 0x6a;
  723                 break;
  724 
  725         case SOUND_MIXER_SPEAKER:
  726                 preg = 0x3c;
  727                 break;
  728 
  729         case SOUND_MIXER_VOLUME:
  730                 l = left? (left * 63) / 100 : 64;
  731                 r = right? (right * 63) / 100 : 64;
  732                 ess_setmixer(sc, 0x60, l);
  733                 ess_setmixer(sc, 0x62, r);
  734                 left = (l == 64)? 0 : (l * 100) / 63;
  735                 right = (r == 64)? 0 : (r * 100) / 63;
  736                 return left | (right << 8);
  737         }
  738 
  739         if (preg)
  740                 ess_setmixer(sc, preg, (l << 4) | r);
  741         if (rreg)
  742                 ess_setmixer(sc, rreg, (l << 4) | r);
  743 
  744         left = (l * 100) / 15;
  745         right = (r * 100) / 15;
  746 
  747         return left | (right << 8);
  748 }
  749 
  750 static u_int32_t
  751 essmix_setrecsrc(struct snd_mixer *m, u_int32_t src)
  752 {
  753         struct ess_info *sc = mix_getdevinfo(m);
  754         u_char recdev;
  755 
  756         switch (src) {
  757         case SOUND_MASK_CD:
  758                 recdev = 0x02;
  759                 break;
  760 
  761         case SOUND_MASK_LINE:
  762                 recdev = 0x06;
  763                 break;
  764 
  765         case SOUND_MASK_IMIX:
  766                 recdev = 0x05;
  767                 break;
  768 
  769         case SOUND_MASK_MIC:
  770         default:
  771                 recdev = 0x00;
  772                 src = SOUND_MASK_MIC;
  773                 break;
  774         }
  775 
  776         ess_setmixer(sc, 0x1c, recdev);
  777 
  778         return src;
  779 }
  780 
  781 static kobj_method_t essmixer_methods[] = {
  782         KOBJMETHOD(mixer_init,          essmix_init),
  783         KOBJMETHOD(mixer_set,           essmix_set),
  784         KOBJMETHOD(mixer_setrecsrc,     essmix_setrecsrc),
  785         KOBJMETHOD_END
  786 };
  787 MIXER_DECLARE(essmixer);
  788 
  789 /************************************************************/
  790 
  791 static int
  792 ess_probe(device_t dev)
  793 {
  794         uintptr_t func, ver, r, f;
  795 
  796         /* The parent device has already been probed. */
  797         r = BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func);
  798         if (func != SCF_PCM)
  799                 return (ENXIO);
  800 
  801         r = BUS_READ_IVAR(device_get_parent(dev), dev, 1, &ver);
  802         f = (ver & 0xffff0000) >> 16;
  803         if (!(f & BD_F_ESS))
  804                 return (ENXIO);
  805 
  806         device_set_desc(dev, "ESS 18xx DSP");
  807 
  808         return 0;
  809 }
  810 
  811 static int
  812 ess_attach(device_t dev)
  813 {
  814         struct ess_info *sc;
  815         char status[SND_STATUSLEN], buf[64];
  816         int ver;
  817 
  818         gone_in_dev(dev, 14, "ISA sound driver");
  819         sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO);
  820         sc->parent_dev = device_get_parent(dev);
  821         sc->bufsize = pcm_getbuffersize(dev, 4096, ESS_BUFFSIZE, 65536);
  822         if (ess_alloc_resources(sc, dev))
  823                 goto no;
  824         if (ess_reset_dsp(sc))
  825                 goto no;
  826         if (mixer_init(dev, &essmixer_class, sc))
  827                 goto no;
  828 
  829         sc->duplex = 0;
  830         sc->newspeed = 0;
  831         ver = (ess_getmixer(sc, 0x40) << 8) | ess_rd(sc, SB_MIX_DATA);
  832         snprintf(buf, sizeof buf, "ESS %x DSP", ver);
  833         device_set_desc_copy(dev, buf);
  834         if (bootverbose)
  835                 device_printf(dev, "ESS%x detected", ver);
  836 
  837         switch (ver) {
  838         case 0x1869:
  839         case 0x1879:
  840 #ifdef ESS18XX_DUPLEX
  841                 sc->duplex = sc->drq2? 1 : 0;
  842 #endif
  843 #ifdef ESS18XX_NEWSPEED
  844                 sc->newspeed = 1;
  845 #endif
  846                 break;
  847         }
  848         if (bootverbose)
  849                 printf("%s%s\n", sc->duplex? ", duplex" : "",
  850                                  sc->newspeed? ", newspeed" : "");
  851 
  852         if (sc->newspeed)
  853                 ess_setmixer(sc, 0x71, 0x22);
  854 
  855         snd_setup_intr(dev, sc->irq, 0, ess_intr, sc, &sc->ih);
  856         if (!sc->duplex)
  857                 pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
  858 
  859         if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2,
  860                         /*boundary*/0,
  861                         /*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
  862                         /*highaddr*/BUS_SPACE_MAXADDR,
  863                         /*filter*/NULL, /*filterarg*/NULL,
  864                         /*maxsize*/sc->bufsize, /*nsegments*/1,
  865                         /*maxsegz*/0x3ffff,
  866                         /*flags*/0, /*lockfunc*/busdma_lock_mutex,
  867                         /*lockarg*/&Giant, &sc->parent_dmat) != 0) {
  868                 device_printf(dev, "unable to create dma tag\n");
  869                 goto no;
  870         }
  871 
  872         if (sc->drq2)
  873                 snprintf(buf, SND_STATUSLEN, ":%jd", rman_get_start(sc->drq2));
  874         else
  875                 buf[0] = '\0';
  876 
  877         snprintf(status, SND_STATUSLEN, "at io 0x%jx irq %jd drq %jd%s bufsz %u %s",
  878                 rman_get_start(sc->io_base), rman_get_start(sc->irq),
  879                 rman_get_start(sc->drq1), buf, sc->bufsize,
  880                 PCM_KLDSTRING(snd_ess));
  881 
  882         if (pcm_register(dev, sc, 1, 1))
  883                 goto no;
  884         pcm_addchan(dev, PCMDIR_REC, &esschan_class, sc);
  885         pcm_addchan(dev, PCMDIR_PLAY, &esschan_class, sc);
  886         pcm_setstatus(dev, status);
  887 
  888         return 0;
  889 
  890 no:
  891         ess_release_resources(sc, dev);
  892         return ENXIO;
  893 }
  894 
  895 static int
  896 ess_detach(device_t dev)
  897 {
  898         int r;
  899         struct ess_info *sc;
  900 
  901         r = pcm_unregister(dev);
  902         if (r)
  903                 return r;
  904 
  905         sc = pcm_getdevinfo(dev);
  906         ess_release_resources(sc, dev);
  907         return 0;
  908 }
  909 
  910 static int
  911 ess_resume(device_t dev)
  912 {
  913         struct ess_info *sc;
  914 
  915         sc = pcm_getdevinfo(dev);
  916 
  917         if (ess_reset_dsp(sc)) {
  918                 device_printf(dev, "unable to reset DSP at resume\n");
  919                 return ENXIO;
  920         }
  921 
  922         if (mixer_reinit(dev)) {
  923                 device_printf(dev, "unable to reinitialize mixer at resume\n");
  924                 return ENXIO;
  925         }
  926 
  927         return 0;
  928 }
  929 
  930 static device_method_t ess_methods[] = {
  931         /* Device interface */
  932         DEVMETHOD(device_probe,         ess_probe),
  933         DEVMETHOD(device_attach,        ess_attach),
  934         DEVMETHOD(device_detach,        ess_detach),
  935         DEVMETHOD(device_resume,        ess_resume),
  936 
  937         { 0, 0 }
  938 };
  939 
  940 static driver_t ess_driver = {
  941         "pcm",
  942         ess_methods,
  943         PCM_SOFTC_SIZE,
  944 };
  945 
  946 DRIVER_MODULE(snd_ess, sbc, ess_driver, pcm_devclass, 0, 0);
  947 MODULE_DEPEND(snd_ess, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
  948 MODULE_DEPEND(snd_ess, snd_sbc, 1, 1, 1);
  949 MODULE_VERSION(snd_ess, 1);
  950 
  951 /************************************************************/
  952 
  953 static devclass_t esscontrol_devclass;
  954 
  955 static struct isa_pnp_id essc_ids[] = {
  956         {0x06007316, "ESS Control"},
  957         {0}
  958 };
  959 
  960 static int
  961 esscontrol_probe(device_t dev)
  962 {
  963         int i;
  964 
  965         i = ISA_PNP_PROBE(device_get_parent(dev), dev, essc_ids);
  966         if (i == 0)
  967                 device_quiet(dev);
  968         return i;
  969 }
  970 
  971 static int
  972 esscontrol_attach(device_t dev)
  973 {
  974 #ifdef notyet
  975         struct resource *io;
  976         int rid, i, x;
  977 
  978         rid = 0;
  979         io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
  980         x = 0;
  981         for (i = 0; i < 0x100; i++) {
  982                 port_wr(io, 0, i);
  983                 x = port_rd(io, 1);
  984                 if ((i & 0x0f) == 0)
  985                         printf("%3.3x: ", i);
  986                 printf("%2.2x ", x);
  987                 if ((i & 0x0f) == 0x0f)
  988                         printf("\n");
  989         }
  990         bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
  991         io = NULL;
  992 #endif
  993 
  994         return 0;
  995 }
  996 
  997 static int
  998 esscontrol_detach(device_t dev)
  999 {
 1000         return 0;
 1001 }
 1002 
 1003 static device_method_t esscontrol_methods[] = {
 1004         /* Device interface */
 1005         DEVMETHOD(device_probe,         esscontrol_probe),
 1006         DEVMETHOD(device_attach,        esscontrol_attach),
 1007         DEVMETHOD(device_detach,        esscontrol_detach),
 1008 
 1009         { 0, 0 }
 1010 };
 1011 
 1012 static driver_t esscontrol_driver = {
 1013         "esscontrol",
 1014         esscontrol_methods,
 1015         1,
 1016 };
 1017 
 1018 DRIVER_MODULE(esscontrol, isa, esscontrol_driver, esscontrol_devclass, 0, 0);
 1019 DRIVER_MODULE(esscontrol, acpi, esscontrol_driver, esscontrol_devclass, 0, 0);
 1020 ISA_PNP_INFO(essc_ids);

Cache object: 9f077731bd94c2827535d318bd53c485


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