The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/sound/isa/sb16.c

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    1 /*
    2  * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
    3  * Copyright 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 "mixer_if.h"
   38 
   39 SND_DECLARE_FILE("$FreeBSD: stable/4/sys/dev/sound/isa/sb16.c 108266 2002-12-24 21:17:42Z semenu $");
   40 
   41 #define SB16_BUFFSIZE   4096
   42 #define PLAIN_SB16(x) ((((x)->bd_flags) & (BD_F_SB16|BD_F_SB16X)) == BD_F_SB16)
   43 
   44 static u_int32_t sb16_fmt8[] = {
   45         AFMT_U8,
   46         AFMT_STEREO | AFMT_U8,
   47         0
   48 };
   49 static struct pcmchan_caps sb16_caps8 = {5000, 45000, sb16_fmt8, 0};
   50 
   51 static u_int32_t sb16_fmt16[] = {
   52         AFMT_S16_LE,
   53         AFMT_STEREO | AFMT_S16_LE,
   54         0
   55 };
   56 static struct pcmchan_caps sb16_caps16 = {5000, 45000, sb16_fmt16, 0};
   57 
   58 static u_int32_t sb16x_fmt[] = {
   59         AFMT_U8,
   60         AFMT_STEREO | AFMT_U8,
   61         AFMT_S16_LE,
   62         AFMT_STEREO | AFMT_S16_LE,
   63         0
   64 };
   65 static struct pcmchan_caps sb16x_caps = {5000, 49000, sb16x_fmt, 0};
   66 
   67 struct sb_info;
   68 
   69 struct sb_chinfo {
   70         struct sb_info *parent;
   71         struct pcm_channel *channel;
   72         struct snd_dbuf *buffer;
   73         int dir, run, dch;
   74         u_int32_t fmt, spd, blksz;
   75 };
   76 
   77 struct sb_info {
   78         struct resource *io_base;       /* I/O address for the board */
   79         struct resource *irq;
   80         struct resource *drq1;
   81         struct resource *drq2;
   82         void *ih;
   83         bus_dma_tag_t parent_dmat;
   84 
   85         unsigned int bufsize;
   86         int bd_id;
   87         u_long bd_flags;       /* board-specific flags */
   88         int prio, prio16;
   89         struct sb_chinfo pch, rch;
   90         device_t parent_dev;
   91 };
   92 
   93 #if 0
   94 static void sb_lock(struct sb_info *sb);
   95 static void sb_unlock(struct sb_info *sb);
   96 static int sb_rd(struct sb_info *sb, int reg);
   97 static void sb_wr(struct sb_info *sb, int reg, u_int8_t val);
   98 static int sb_cmd(struct sb_info *sb, u_char val);
   99 /* static int sb_cmd1(struct sb_info *sb, u_char cmd, int val); */
  100 static int sb_cmd2(struct sb_info *sb, u_char cmd, int val);
  101 static u_int sb_get_byte(struct sb_info *sb);
  102 static void sb_setmixer(struct sb_info *sb, u_int port, u_int value);
  103 static int sb_getmixer(struct sb_info *sb, u_int port);
  104 static int sb_reset_dsp(struct sb_info *sb);
  105 
  106 static void sb_intr(void *arg);
  107 #endif
  108 
  109 /*
  110  * Common code for the midi and pcm functions
  111  *
  112  * sb_cmd write a single byte to the CMD port.
  113  * sb_cmd1 write a CMD + 1 byte arg
  114  * sb_cmd2 write a CMD + 2 byte arg
  115  * sb_get_byte returns a single byte from the DSP data port
  116  */
  117 
  118 static void
  119 sb_lock(struct sb_info *sb) {
  120 
  121         sbc_lock(device_get_softc(sb->parent_dev));
  122 }
  123 
  124 static void
  125 sb_unlock(struct sb_info *sb) {
  126 
  127         sbc_unlock(device_get_softc(sb->parent_dev));
  128 }
  129 
  130 static int
  131 port_rd(struct resource *port, int off)
  132 {
  133         return bus_space_read_1(rman_get_bustag(port), rman_get_bushandle(port), off);
  134 }
  135 
  136 static void
  137 port_wr(struct resource *port, int off, u_int8_t data)
  138 {
  139         bus_space_write_1(rman_get_bustag(port), rman_get_bushandle(port), off, data);
  140 }
  141 
  142 static int
  143 sb_rd(struct sb_info *sb, int reg)
  144 {
  145         return port_rd(sb->io_base, reg);
  146 }
  147 
  148 static void
  149 sb_wr(struct sb_info *sb, int reg, u_int8_t val)
  150 {
  151         port_wr(sb->io_base, reg, val);
  152 }
  153 
  154 static int
  155 sb_dspwr(struct sb_info *sb, u_char val)
  156 {
  157         int  i;
  158 
  159         for (i = 0; i < 1000; i++) {
  160                 if ((sb_rd(sb, SBDSP_STATUS) & 0x80))
  161                         DELAY((i > 100)? 1000 : 10);
  162                 else {
  163                         sb_wr(sb, SBDSP_CMD, val);
  164                         return 1;
  165                 }
  166         }
  167 #if __FreeBSD_version > 500000
  168         if (curthread->td_intr_nesting_level == 0)
  169                 printf("sb_dspwr(0x%02x) timed out.\n", val);
  170 #endif
  171         return 0;
  172 }
  173 
  174 static int
  175 sb_cmd(struct sb_info *sb, u_char val)
  176 {
  177 #if 0
  178         printf("sb_cmd: %x\n", val);
  179 #endif
  180         return sb_dspwr(sb, val);
  181 }
  182 
  183 /*
  184 static int
  185 sb_cmd1(struct sb_info *sb, u_char cmd, int val)
  186 {
  187 #if 0
  188         printf("sb_cmd1: %x, %x\n", cmd, val);
  189 #endif
  190         if (sb_dspwr(sb, cmd)) {
  191                 return sb_dspwr(sb, val & 0xff);
  192         } else return 0;
  193 }
  194 */
  195 
  196 static int
  197 sb_cmd2(struct sb_info *sb, u_char cmd, int val)
  198 {
  199         int r;
  200 
  201 #if 0
  202         printf("sb_cmd2: %x, %x\n", cmd, val);
  203 #endif
  204         sb_lock(sb);
  205         r = 0;
  206         if (sb_dspwr(sb, cmd)) {
  207                 if (sb_dspwr(sb, val & 0xff)) {
  208                         if (sb_dspwr(sb, (val >> 8) & 0xff)) {
  209                                 r = 1;
  210                         }
  211                 }
  212         }
  213         sb_unlock(sb);
  214 
  215         return r;
  216 }
  217 
  218 /*
  219  * in the SB, there is a set of indirect "mixer" registers with
  220  * address at offset 4, data at offset 5
  221  */
  222 static void
  223 sb_setmixer(struct sb_info *sb, u_int port, u_int value)
  224 {
  225         sb_lock(sb);
  226         sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
  227         DELAY(10);
  228         sb_wr(sb, SB_MIX_DATA, (u_char) (value & 0xff));
  229         DELAY(10);
  230         sb_unlock(sb);
  231 }
  232 
  233 static int
  234 sb_getmixer(struct sb_info *sb, u_int port)
  235 {
  236         int val;
  237 
  238         sb_lock(sb);
  239         sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
  240         DELAY(10);
  241         val = sb_rd(sb, SB_MIX_DATA);
  242         DELAY(10);
  243         sb_unlock(sb);
  244 
  245         return val;
  246 }
  247 
  248 static u_int
  249 sb_get_byte(struct sb_info *sb)
  250 {
  251         int i;
  252 
  253         for (i = 1000; i > 0; i--) {
  254                 if (sb_rd(sb, DSP_DATA_AVAIL) & 0x80)
  255                         return sb_rd(sb, DSP_READ);
  256                 else
  257                         DELAY(20);
  258         }
  259         return 0xffff;
  260 }
  261 
  262 static int
  263 sb_reset_dsp(struct sb_info *sb)
  264 {
  265         u_char b;
  266 
  267         sb_lock(sb);
  268         sb_wr(sb, SBDSP_RST, 3);
  269         DELAY(100);
  270         sb_wr(sb, SBDSP_RST, 0);
  271         b = sb_get_byte(sb);
  272         sb_unlock(sb);
  273         if (b != 0xAA) {
  274                 DEB(printf("sb_reset_dsp 0x%lx failed\n",
  275                            rman_get_start(sb->io_base)));
  276                 return ENXIO;   /* Sorry */
  277         }
  278         return 0;
  279 }
  280 
  281 /************************************************************/
  282 
  283 struct sb16_mixent {
  284         int reg;
  285         int bits;
  286         int ofs;
  287         int stereo;
  288 };
  289 
  290 static const struct sb16_mixent sb16_mixtab[32] = {
  291         [SOUND_MIXER_VOLUME]    = { 0x30, 5, 3, 1 },
  292         [SOUND_MIXER_PCM]       = { 0x32, 5, 3, 1 },
  293         [SOUND_MIXER_SYNTH]     = { 0x34, 5, 3, 1 },
  294         [SOUND_MIXER_CD]        = { 0x36, 5, 3, 1 },
  295         [SOUND_MIXER_LINE]      = { 0x38, 5, 3, 1 },
  296         [SOUND_MIXER_MIC]       = { 0x3a, 5, 3, 0 },
  297         [SOUND_MIXER_SPEAKER]   = { 0x3b, 5, 3, 0 },
  298         [SOUND_MIXER_IGAIN]     = { 0x3f, 2, 6, 1 },
  299         [SOUND_MIXER_OGAIN]     = { 0x41, 2, 6, 1 },
  300         [SOUND_MIXER_TREBLE]    = { 0x44, 4, 4, 1 },
  301         [SOUND_MIXER_BASS]      = { 0x46, 4, 4, 1 },
  302         [SOUND_MIXER_LINE1]     = { 0x52, 5, 3, 1 }
  303 };
  304 
  305 static int
  306 sb16mix_init(struct snd_mixer *m)
  307 {
  308         struct sb_info *sb = mix_getdevinfo(m);
  309 
  310         mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_SPEAKER |
  311                        SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD |
  312                        SOUND_MASK_IGAIN | SOUND_MASK_OGAIN | SOUND_MASK_LINE1 |
  313                        SOUND_MASK_VOLUME | SOUND_MASK_BASS | SOUND_MASK_TREBLE);
  314 
  315         mix_setrecdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_LINE |
  316                           SOUND_MASK_LINE1 | SOUND_MASK_MIC | SOUND_MASK_CD);
  317 
  318         sb_setmixer(sb, 0x3c, 0x1f); /* make all output active */
  319 
  320         sb_setmixer(sb, 0x3d, 0); /* make all inputs-l off */
  321         sb_setmixer(sb, 0x3e, 0); /* make all inputs-r off */
  322 
  323         return 0;
  324 }
  325 
  326 static int
  327 sb16mix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
  328 {
  329         struct sb_info *sb = mix_getdevinfo(m);
  330         const struct sb16_mixent *e;
  331         int max;
  332 
  333         e = &sb16_mixtab[dev];
  334         max = (1 << e->bits) - 1;
  335 
  336         left = (left * max) / 100;
  337         right = (right * max) / 100;
  338 
  339         sb_setmixer(sb, e->reg, left << e->ofs);
  340         if (e->stereo)
  341                 sb_setmixer(sb, e->reg + 1, right << e->ofs);
  342         else
  343                 right = left;
  344 
  345         left = (left * 100) / max;
  346         right = (right * 100) / max;
  347 
  348         return left | (right << 8);
  349 }
  350 
  351 static int
  352 sb16mix_setrecsrc(struct snd_mixer *m, u_int32_t src)
  353 {
  354         struct sb_info *sb = mix_getdevinfo(m);
  355         u_char recdev;
  356 
  357         recdev = 0;
  358         if (src & SOUND_MASK_MIC)
  359                 recdev |= 0x01; /* mono mic */
  360 
  361         if (src & SOUND_MASK_CD)
  362                 recdev |= 0x06; /* l+r cd */
  363 
  364         if (src & SOUND_MASK_LINE)
  365                 recdev |= 0x18; /* l+r line */
  366 
  367         if (src & SOUND_MASK_SYNTH)
  368                 recdev |= 0x60; /* l+r midi */
  369 
  370         sb_setmixer(sb, SB16_IMASK_L, recdev);
  371         sb_setmixer(sb, SB16_IMASK_R, recdev);
  372 
  373         /* Switch on/off FM tuner source */
  374         if (src & SOUND_MASK_LINE1)
  375                 sb_setmixer(sb, 0x4a, 0x0c);
  376         else
  377                 sb_setmixer(sb, 0x4a, 0x00);
  378 
  379         /*
  380          * since the same volume controls apply to the input and
  381          * output sections, the best approach to have a consistent
  382          * behaviour among cards would be to disable the output path
  383          * on devices which are used to record.
  384          * However, since users like to have feedback, we only disable
  385          * the mic -- permanently.
  386          */
  387         sb_setmixer(sb, SB16_OMASK, 0x1f & ~1);
  388 
  389         return src;
  390 }
  391 
  392 static kobj_method_t sb16mix_mixer_methods[] = {
  393         KOBJMETHOD(mixer_init,          sb16mix_init),
  394         KOBJMETHOD(mixer_set,           sb16mix_set),
  395         KOBJMETHOD(mixer_setrecsrc,     sb16mix_setrecsrc),
  396         { 0, 0 }
  397 };
  398 MIXER_DECLARE(sb16mix_mixer);
  399 
  400 /************************************************************/
  401 
  402 static void
  403 sb16_release_resources(struct sb_info *sb, device_t dev)
  404 {
  405         if (sb->irq) {
  406                 if (sb->ih)
  407                         bus_teardown_intr(dev, sb->irq, sb->ih);
  408                 bus_release_resource(dev, SYS_RES_IRQ, 0, sb->irq);
  409                 sb->irq = 0;
  410         }
  411         if (sb->drq2) {
  412                 if (sb->drq2 != sb->drq1) {
  413                         isa_dma_release(rman_get_start(sb->drq2));
  414                         bus_release_resource(dev, SYS_RES_DRQ, 1, sb->drq2);
  415                 }
  416                 sb->drq2 = 0;
  417         }
  418         if (sb->drq1) {
  419                 isa_dma_release(rman_get_start(sb->drq1));
  420                 bus_release_resource(dev, SYS_RES_DRQ, 0, sb->drq1);
  421                 sb->drq1 = 0;
  422         }
  423         if (sb->io_base) {
  424                 bus_release_resource(dev, SYS_RES_IOPORT, 0, sb->io_base);
  425                 sb->io_base = 0;
  426         }
  427         if (sb->parent_dmat) {
  428                 bus_dma_tag_destroy(sb->parent_dmat);
  429                 sb->parent_dmat = 0;
  430         }
  431         free(sb, M_DEVBUF);
  432 }
  433 
  434 static int
  435 sb16_alloc_resources(struct sb_info *sb, device_t dev)
  436 {
  437         int rid;
  438 
  439         rid = 0;
  440         if (!sb->io_base)
  441                 sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
  442 
  443         rid = 0;
  444         if (!sb->irq)
  445                 sb->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE);
  446 
  447         rid = 0;
  448         if (!sb->drq1)
  449                 sb->drq1 = bus_alloc_resource(dev, SYS_RES_DRQ, &rid, 0, ~0, 1, RF_ACTIVE);
  450 
  451         rid = 1;
  452         if (!sb->drq2)
  453                 sb->drq2 = bus_alloc_resource(dev, SYS_RES_DRQ, &rid, 0, ~0, 1, RF_ACTIVE);
  454 
  455         if (sb->io_base && sb->drq1 && sb->irq) {
  456                 isa_dma_acquire(rman_get_start(sb->drq1));
  457                 isa_dmainit(rman_get_start(sb->drq1), sb->bufsize);
  458 
  459                 if (sb->drq2) {
  460                         isa_dma_acquire(rman_get_start(sb->drq2));
  461                         isa_dmainit(rman_get_start(sb->drq2), sb->bufsize);
  462                 } else {
  463                         sb->drq2 = sb->drq1;
  464                         pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
  465                 }
  466                 return 0;
  467         } else return ENXIO;
  468 }
  469 
  470 /* sbc does locking for us */
  471 static void
  472 sb_intr(void *arg)
  473 {
  474         struct sb_info *sb = (struct sb_info *)arg;
  475         int reason = 3, c;
  476 
  477         /*
  478          * The Vibra16X has separate flags for 8 and 16 bit transfers, but
  479          * I have no idea how to tell capture from playback interrupts...
  480          */
  481 
  482         reason = 0;
  483         sb_lock(sb);
  484         c = sb_getmixer(sb, IRQ_STAT);
  485         if (c & 1)
  486                 sb_rd(sb, DSP_DATA_AVAIL); /* 8-bit int ack */
  487 
  488         if (c & 2)
  489                 sb_rd(sb, DSP_DATA_AVL16); /* 16-bit int ack */
  490         sb_unlock(sb);
  491 
  492         /*
  493          * this tells us if the source is 8-bit or 16-bit dma. We
  494          * have to check the io channel to map it to read or write...
  495          */
  496 
  497         if (sb->bd_flags & BD_F_SB16X) {
  498                 if (c & 1) { /* 8-bit format */
  499                         if (sb->pch.fmt & AFMT_8BIT)
  500                                 reason |= 1;
  501                         if (sb->rch.fmt & AFMT_8BIT)
  502                                 reason |= 2;
  503                 }
  504                 if (c & 2) { /* 16-bit format */
  505                         if (sb->pch.fmt & AFMT_16BIT)
  506                                 reason |= 1;
  507                         if (sb->rch.fmt & AFMT_16BIT)
  508                                 reason |= 2;
  509                 }
  510         } else {
  511                 if (c & 1) { /* 8-bit dma */
  512                         if (sb->pch.dch == 1)
  513                                 reason |= 1;
  514                         if (sb->rch.dch == 1)
  515                                 reason |= 2;
  516                 }
  517                 if (c & 2) { /* 16-bit dma */
  518                         if (sb->pch.dch == 2)
  519                                 reason |= 1;
  520                         if (sb->rch.dch == 2)
  521                                 reason |= 2;
  522                 }
  523         }
  524 #if 0
  525         printf("sb_intr: reason=%d c=0x%x\n", reason, c);
  526 #endif
  527         if ((reason & 1) && (sb->pch.run))
  528                 chn_intr(sb->pch.channel);
  529 
  530         if ((reason & 2) && (sb->rch.run))
  531                 chn_intr(sb->rch.channel);
  532 }
  533 
  534 static int
  535 sb_setup(struct sb_info *sb)
  536 {
  537         struct sb_chinfo *ch;
  538         u_int8_t v;
  539         int l, pprio;
  540 
  541         sb_lock(sb);
  542         if (sb->bd_flags & BD_F_DMARUN)
  543                 sndbuf_isadma(sb->pch.buffer, PCMTRIG_STOP);
  544         if (sb->bd_flags & BD_F_DMARUN2)
  545                 sndbuf_isadma(sb->rch.buffer, PCMTRIG_STOP);
  546         sb->bd_flags &= ~(BD_F_DMARUN | BD_F_DMARUN2);
  547 
  548         sb_reset_dsp(sb);
  549 
  550         if (sb->bd_flags & BD_F_SB16X) {
  551                 pprio = sb->pch.run? 1 : 0;
  552                 sndbuf_isadmasetup(sb->pch.buffer, pprio? sb->drq1 : NULL);
  553                 sb->pch.dch = pprio? 1 : 0;
  554                 sndbuf_isadmasetup(sb->rch.buffer, pprio? sb->drq2 : sb->drq1);
  555                 sb->rch.dch = pprio? 2 : 1;
  556         } else {
  557                 if (sb->pch.run && sb->rch.run) {
  558                         pprio = (sb->rch.fmt & AFMT_16BIT)? 0 : 1;
  559                         sndbuf_isadmasetup(sb->pch.buffer, pprio? sb->drq2 : sb->drq1);
  560                         sb->pch.dch = pprio? 2 : 1;
  561                         sndbuf_isadmasetup(sb->rch.buffer, pprio? sb->drq1 : sb->drq2);
  562                         sb->rch.dch = pprio? 1 : 2;
  563                 } else {
  564                         if (sb->pch.run) {
  565                                 sndbuf_isadmasetup(sb->pch.buffer, (sb->pch.fmt & AFMT_16BIT)? sb->drq2 : sb->drq1);
  566                                 sb->pch.dch = (sb->pch.fmt & AFMT_16BIT)? 2 : 1;
  567                                 sndbuf_isadmasetup(sb->rch.buffer, (sb->pch.fmt & AFMT_16BIT)? sb->drq1 : sb->drq2);
  568                                 sb->rch.dch = (sb->pch.fmt & AFMT_16BIT)? 1 : 2;
  569                         } else if (sb->rch.run) {
  570                                 sndbuf_isadmasetup(sb->pch.buffer, (sb->rch.fmt & AFMT_16BIT)? sb->drq1 : sb->drq2);
  571                                 sb->pch.dch = (sb->rch.fmt & AFMT_16BIT)? 1 : 2;
  572                                 sndbuf_isadmasetup(sb->rch.buffer, (sb->rch.fmt & AFMT_16BIT)? sb->drq2 : sb->drq1);
  573                                 sb->rch.dch = (sb->rch.fmt & AFMT_16BIT)? 2 : 1;
  574                         }
  575                 }
  576         }
  577 
  578         sndbuf_isadmasetdir(sb->pch.buffer, PCMDIR_PLAY);
  579         sndbuf_isadmasetdir(sb->rch.buffer, PCMDIR_REC);
  580 
  581         /*
  582         printf("setup: [pch = %d, pfmt = %d, pgo = %d] [rch = %d, rfmt = %d, rgo = %d]\n",
  583                sb->pch.dch, sb->pch.fmt, sb->pch.run, sb->rch.dch, sb->rch.fmt, sb->rch.run);
  584         */
  585 
  586         ch = &sb->pch;
  587         if (ch->run) {
  588                 l = ch->blksz;
  589                 if (ch->fmt & AFMT_16BIT)
  590                         l >>= 1;
  591                 l--;
  592 
  593                 /* play speed */
  594                 RANGE(ch->spd, 5000, 45000);
  595                 sb_cmd(sb, DSP_CMD_OUT16);
  596                 sb_cmd(sb, ch->spd >> 8);
  597                 sb_cmd(sb, ch->spd & 0xff);
  598 
  599                 /* play format, length */
  600                 v = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_F16_DAC;
  601                 v |= (ch->fmt & AFMT_16BIT)? DSP_DMA16 : DSP_DMA8;
  602                 sb_cmd(sb, v);
  603 
  604                 v = (ch->fmt & AFMT_STEREO)? DSP_F16_STEREO : 0;
  605                 v |= (ch->fmt & AFMT_SIGNED)? DSP_F16_SIGNED : 0;
  606                 sb_cmd2(sb, v, l);
  607                 sndbuf_isadma(ch->buffer, PCMTRIG_START);
  608                 sb->bd_flags |= BD_F_DMARUN;
  609         }
  610 
  611         ch = &sb->rch;
  612         if (ch->run) {
  613                 l = ch->blksz;
  614                 if (ch->fmt & AFMT_16BIT)
  615                         l >>= 1;
  616                 l--;
  617 
  618                 /* record speed */
  619                 RANGE(ch->spd, 5000, 45000);
  620                 sb_cmd(sb, DSP_CMD_IN16);
  621                 sb_cmd(sb, ch->spd >> 8);
  622                 sb_cmd(sb, ch->spd & 0xff);
  623 
  624                 /* record format, length */
  625                 v = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_F16_ADC;
  626                 v |= (ch->fmt & AFMT_16BIT)? DSP_DMA16 : DSP_DMA8;
  627                 sb_cmd(sb, v);
  628 
  629                 v = (ch->fmt & AFMT_STEREO)? DSP_F16_STEREO : 0;
  630                 v |= (ch->fmt & AFMT_SIGNED)? DSP_F16_SIGNED : 0;
  631                 sb_cmd2(sb, v, l);
  632                 sndbuf_isadma(ch->buffer, PCMTRIG_START);
  633                 sb->bd_flags |= BD_F_DMARUN2;
  634         }
  635         sb_unlock(sb);
  636 
  637         return 0;
  638 }
  639 
  640 /* channel interface */
  641 static void *
  642 sb16chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
  643 {
  644         struct sb_info *sb = devinfo;
  645         struct sb_chinfo *ch = (dir == PCMDIR_PLAY)? &sb->pch : &sb->rch;
  646 
  647         ch->parent = sb;
  648         ch->channel = c;
  649         ch->buffer = b;
  650         ch->dir = dir;
  651 
  652         if (sndbuf_alloc(ch->buffer, sb->parent_dmat, sb->bufsize) == -1)
  653                 return NULL;
  654 
  655         return ch;
  656 }
  657 
  658 static int
  659 sb16chan_setformat(kobj_t obj, void *data, u_int32_t format)
  660 {
  661         struct sb_chinfo *ch = data;
  662         struct sb_info *sb = ch->parent;
  663 
  664         ch->fmt = format;
  665         sb->prio = ch->dir;
  666         sb->prio16 = (ch->fmt & AFMT_16BIT)? 1 : 0;
  667 
  668         return 0;
  669 }
  670 
  671 static int
  672 sb16chan_setspeed(kobj_t obj, void *data, u_int32_t speed)
  673 {
  674         struct sb_chinfo *ch = data;
  675 
  676         ch->spd = speed;
  677         return speed;
  678 }
  679 
  680 static int
  681 sb16chan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
  682 {
  683         struct sb_chinfo *ch = data;
  684 
  685         ch->blksz = blocksize;
  686         return ch->blksz;
  687 }
  688 
  689 static int
  690 sb16chan_trigger(kobj_t obj, void *data, int go)
  691 {
  692         struct sb_chinfo *ch = data;
  693         struct sb_info *sb = ch->parent;
  694 
  695         if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD)
  696                 return 0;
  697 
  698         if (go == PCMTRIG_START)
  699                 ch->run = 1;
  700         else
  701                 ch->run = 0;
  702 
  703         sb_setup(sb);
  704 
  705         return 0;
  706 }
  707 
  708 static int
  709 sb16chan_getptr(kobj_t obj, void *data)
  710 {
  711         struct sb_chinfo *ch = data;
  712 
  713         return sndbuf_isadmaptr(ch->buffer);
  714 }
  715 
  716 static struct pcmchan_caps *
  717 sb16chan_getcaps(kobj_t obj, void *data)
  718 {
  719         struct sb_chinfo *ch = data;
  720         struct sb_info *sb = ch->parent;
  721 
  722         if ((sb->prio == 0) || (sb->prio == ch->dir))
  723                 return &sb16x_caps;
  724         else
  725                 return sb->prio16? &sb16_caps8 : &sb16_caps16;
  726 }
  727 
  728 static int
  729 sb16chan_resetdone(kobj_t obj, void *data)
  730 {
  731         struct sb_chinfo *ch = data;
  732         struct sb_info *sb = ch->parent;
  733 
  734         sb->prio = 0;
  735 
  736         return 0;
  737 }
  738 
  739 static kobj_method_t sb16chan_methods[] = {
  740         KOBJMETHOD(channel_init,                sb16chan_init),
  741         KOBJMETHOD(channel_resetdone,           sb16chan_resetdone),
  742         KOBJMETHOD(channel_setformat,           sb16chan_setformat),
  743         KOBJMETHOD(channel_setspeed,            sb16chan_setspeed),
  744         KOBJMETHOD(channel_setblocksize,        sb16chan_setblocksize),
  745         KOBJMETHOD(channel_trigger,             sb16chan_trigger),
  746         KOBJMETHOD(channel_getptr,              sb16chan_getptr),
  747         KOBJMETHOD(channel_getcaps,             sb16chan_getcaps),
  748         { 0, 0 }
  749 };
  750 CHANNEL_DECLARE(sb16chan);
  751 
  752 /************************************************************/
  753 
  754 static int
  755 sb16_probe(device_t dev)
  756 {
  757         char buf[64];
  758         uintptr_t func, ver, r, f;
  759 
  760         /* The parent device has already been probed. */
  761         r = BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func);
  762         if (func != SCF_PCM)
  763                 return (ENXIO);
  764 
  765         r = BUS_READ_IVAR(device_get_parent(dev), dev, 1, &ver);
  766         f = (ver & 0xffff0000) >> 16;
  767         ver &= 0x0000ffff;
  768         if (f & BD_F_SB16) {
  769                 snprintf(buf, sizeof buf, "SB16 DSP %d.%02d%s", (int) ver >> 8, (int) ver & 0xff,
  770                          (f & BD_F_SB16X)? " (ViBRA16X)" : "");
  771                 device_set_desc_copy(dev, buf);
  772                 return 0;
  773         } else
  774                 return (ENXIO);
  775 }
  776 
  777 static int
  778 sb16_attach(device_t dev)
  779 {
  780         struct sb_info *sb;
  781         uintptr_t ver;
  782         char status[SND_STATUSLEN], status2[SND_STATUSLEN];
  783 
  784         sb = (struct sb_info *)malloc(sizeof *sb, M_DEVBUF, M_NOWAIT | M_ZERO);
  785         if (!sb)
  786                 return ENXIO;
  787 
  788         sb->parent_dev = device_get_parent(dev);
  789         BUS_READ_IVAR(sb->parent_dev, dev, 1, &ver);
  790         sb->bd_id = ver & 0x0000ffff;
  791         sb->bd_flags = (ver & 0xffff0000) >> 16;
  792         sb->bufsize = pcm_getbuffersize(dev, 4096, SB16_BUFFSIZE, 65536);
  793 
  794         if (sb16_alloc_resources(sb, dev))
  795                 goto no;
  796         if (sb_reset_dsp(sb))
  797                 goto no;
  798         if (mixer_init(dev, &sb16mix_mixer_class, sb))
  799                 goto no;
  800         if (snd_setup_intr(dev, sb->irq, INTR_MPSAFE, sb_intr, sb, &sb->ih))
  801                 goto no;
  802 
  803         if (sb->bd_flags & BD_F_SB16X)
  804                 pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
  805 
  806         sb->prio = 0;
  807 
  808         if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
  809                         /*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
  810                         /*highaddr*/BUS_SPACE_MAXADDR,
  811                         /*filter*/NULL, /*filterarg*/NULL,
  812                         /*maxsize*/sb->bufsize, /*nsegments*/1,
  813                         /*maxsegz*/0x3ffff,
  814                         /*flags*/0, &sb->parent_dmat) != 0) {
  815                 device_printf(dev, "unable to create dma tag\n");
  816                 goto no;
  817         }
  818 
  819         if (!(pcm_getflags(dev) & SD_F_SIMPLEX))
  820                 snprintf(status2, SND_STATUSLEN, ":%ld", rman_get_start(sb->drq2));
  821         else
  822                 status2[0] = '\0';
  823 
  824         snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld drq %ld%s bufsz %ud",
  825                 rman_get_start(sb->io_base), rman_get_start(sb->irq),
  826                 rman_get_start(sb->drq1), status2, sb->bufsize);
  827 
  828         if (pcm_register(dev, sb, 1, 1))
  829                 goto no;
  830         pcm_addchan(dev, PCMDIR_REC, &sb16chan_class, sb);
  831         pcm_addchan(dev, PCMDIR_PLAY, &sb16chan_class, sb);
  832 
  833         pcm_setstatus(dev, status);
  834 
  835         return 0;
  836 
  837 no:
  838         sb16_release_resources(sb, dev);
  839         return ENXIO;
  840 }
  841 
  842 static int
  843 sb16_detach(device_t dev)
  844 {
  845         int r;
  846         struct sb_info *sb;
  847 
  848         r = pcm_unregister(dev);
  849         if (r)
  850                 return r;
  851 
  852         sb = pcm_getdevinfo(dev);
  853         sb16_release_resources(sb, dev);
  854         return 0;
  855 }
  856 
  857 static device_method_t sb16_methods[] = {
  858         /* Device interface */
  859         DEVMETHOD(device_probe,         sb16_probe),
  860         DEVMETHOD(device_attach,        sb16_attach),
  861         DEVMETHOD(device_detach,        sb16_detach),
  862 
  863         { 0, 0 }
  864 };
  865 
  866 static driver_t sb16_driver = {
  867         "pcm",
  868         sb16_methods,
  869         PCM_SOFTC_SIZE,
  870 };
  871 
  872 DRIVER_MODULE(snd_sb16, sbc, sb16_driver, pcm_devclass, 0, 0);
  873 MODULE_DEPEND(snd_sb16, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER);
  874 MODULE_DEPEND(snd_sb16, snd_sbc, 1, 1, 1);
  875 MODULE_VERSION(snd_sb16, 1);

Cache object: dc466f7ea06307d7d30cc0e32fddc5d6


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