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 <cg@freebsd.org>
    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 <isa/isavar.h>
   38 
   39 #include "mixer_if.h"
   40 
   41 SND_DECLARE_FILE("$FreeBSD: releng/5.2/sys/dev/sound/isa/sb16.c 119853 2003-09-07 16:28:03Z cg $");
   42 
   43 #define SB16_BUFFSIZE   4096
   44 #define PLAIN_SB16(x) ((((x)->bd_flags) & (BD_F_SB16|BD_F_SB16X)) == BD_F_SB16)
   45 
   46 static u_int32_t sb16_fmt8[] = {
   47         AFMT_U8,
   48         AFMT_STEREO | AFMT_U8,
   49         0
   50 };
   51 static struct pcmchan_caps sb16_caps8 = {5000, 45000, sb16_fmt8, 0};
   52 
   53 static u_int32_t sb16_fmt16[] = {
   54         AFMT_S16_LE,
   55         AFMT_STEREO | AFMT_S16_LE,
   56         0
   57 };
   58 static struct pcmchan_caps sb16_caps16 = {5000, 45000, sb16_fmt16, 0};
   59 
   60 static u_int32_t sb16x_fmt[] = {
   61         AFMT_U8,
   62         AFMT_STEREO | AFMT_U8,
   63         AFMT_S16_LE,
   64         AFMT_STEREO | AFMT_S16_LE,
   65         0
   66 };
   67 static struct pcmchan_caps sb16x_caps = {5000, 49000, sb16x_fmt, 0};
   68 
   69 struct sb_info;
   70 
   71 struct sb_chinfo {
   72         struct sb_info *parent;
   73         struct pcm_channel *channel;
   74         struct snd_dbuf *buffer;
   75         int dir, run, dch;
   76         u_int32_t fmt, spd, blksz;
   77 };
   78 
   79 struct sb_info {
   80         struct resource *io_base;       /* I/O address for the board */
   81         struct resource *irq;
   82         struct resource *drq1;
   83         struct resource *drq2;
   84         void *ih;
   85         bus_dma_tag_t parent_dmat;
   86 
   87         unsigned int bufsize;
   88         int bd_id;
   89         u_long bd_flags;       /* board-specific flags */
   90         int prio, prio16;
   91         struct sb_chinfo pch, rch;
   92         device_t parent_dev;
   93 };
   94 
   95 #if 0
   96 static void sb_lock(struct sb_info *sb);
   97 static void sb_unlock(struct sb_info *sb);
   98 static int sb_rd(struct sb_info *sb, int reg);
   99 static void sb_wr(struct sb_info *sb, int reg, u_int8_t val);
  100 static int sb_cmd(struct sb_info *sb, u_char val);
  101 /* static int sb_cmd1(struct sb_info *sb, u_char cmd, int val); */
  102 static int sb_cmd2(struct sb_info *sb, u_char cmd, int val);
  103 static u_int sb_get_byte(struct sb_info *sb);
  104 static void sb_setmixer(struct sb_info *sb, u_int port, u_int value);
  105 static int sb_getmixer(struct sb_info *sb, u_int port);
  106 static int sb_reset_dsp(struct sb_info *sb);
  107 
  108 static void sb_intr(void *arg);
  109 #endif
  110 
  111 /*
  112  * Common code for the midi and pcm functions
  113  *
  114  * sb_cmd write a single byte to the CMD port.
  115  * sb_cmd1 write a CMD + 1 byte arg
  116  * sb_cmd2 write a CMD + 2 byte arg
  117  * sb_get_byte returns a single byte from the DSP data port
  118  */
  119 
  120 static void
  121 sb_lock(struct sb_info *sb) {
  122 
  123         sbc_lock(device_get_softc(sb->parent_dev));
  124 }
  125 
  126 static void
  127 sb_unlock(struct sb_info *sb) {
  128 
  129         sbc_unlock(device_get_softc(sb->parent_dev));
  130 }
  131 
  132 static int
  133 port_rd(struct resource *port, int off)
  134 {
  135         return bus_space_read_1(rman_get_bustag(port), rman_get_bushandle(port), off);
  136 }
  137 
  138 static void
  139 port_wr(struct resource *port, int off, u_int8_t data)
  140 {
  141         bus_space_write_1(rman_get_bustag(port), rman_get_bushandle(port), off, data);
  142 }
  143 
  144 static int
  145 sb_rd(struct sb_info *sb, int reg)
  146 {
  147         return port_rd(sb->io_base, reg);
  148 }
  149 
  150 static void
  151 sb_wr(struct sb_info *sb, int reg, u_int8_t val)
  152 {
  153         port_wr(sb->io_base, reg, val);
  154 }
  155 
  156 static int
  157 sb_dspwr(struct sb_info *sb, u_char val)
  158 {
  159         int  i;
  160 
  161         for (i = 0; i < 1000; i++) {
  162                 if ((sb_rd(sb, SBDSP_STATUS) & 0x80))
  163                         DELAY((i > 100)? 1000 : 10);
  164                 else {
  165                         sb_wr(sb, SBDSP_CMD, val);
  166                         return 1;
  167                 }
  168         }
  169 #if __FreeBSD_version > 500000
  170         if (curthread->td_intr_nesting_level == 0)
  171                 printf("sb_dspwr(0x%02x) timed out.\n", val);
  172 #endif
  173         return 0;
  174 }
  175 
  176 static int
  177 sb_cmd(struct sb_info *sb, u_char val)
  178 {
  179 #if 0
  180         printf("sb_cmd: %x\n", val);
  181 #endif
  182         return sb_dspwr(sb, val);
  183 }
  184 
  185 /*
  186 static int
  187 sb_cmd1(struct sb_info *sb, u_char cmd, int val)
  188 {
  189 #if 0
  190         printf("sb_cmd1: %x, %x\n", cmd, val);
  191 #endif
  192         if (sb_dspwr(sb, cmd)) {
  193                 return sb_dspwr(sb, val & 0xff);
  194         } else return 0;
  195 }
  196 */
  197 
  198 static int
  199 sb_cmd2(struct sb_info *sb, u_char cmd, int val)
  200 {
  201         int r;
  202 
  203 #if 0
  204         printf("sb_cmd2: %x, %x\n", cmd, val);
  205 #endif
  206         sb_lock(sb);
  207         r = 0;
  208         if (sb_dspwr(sb, cmd)) {
  209                 if (sb_dspwr(sb, val & 0xff)) {
  210                         if (sb_dspwr(sb, (val >> 8) & 0xff)) {
  211                                 r = 1;
  212                         }
  213                 }
  214         }
  215         sb_unlock(sb);
  216 
  217         return r;
  218 }
  219 
  220 /*
  221  * in the SB, there is a set of indirect "mixer" registers with
  222  * address at offset 4, data at offset 5
  223  */
  224 static void
  225 sb_setmixer(struct sb_info *sb, u_int port, u_int value)
  226 {
  227         sb_lock(sb);
  228         sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
  229         DELAY(10);
  230         sb_wr(sb, SB_MIX_DATA, (u_char) (value & 0xff));
  231         DELAY(10);
  232         sb_unlock(sb);
  233 }
  234 
  235 static int
  236 sb_getmixer(struct sb_info *sb, u_int port)
  237 {
  238         int val;
  239 
  240         sb_lock(sb);
  241         sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
  242         DELAY(10);
  243         val = sb_rd(sb, SB_MIX_DATA);
  244         DELAY(10);
  245         sb_unlock(sb);
  246 
  247         return val;
  248 }
  249 
  250 static u_int
  251 sb_get_byte(struct sb_info *sb)
  252 {
  253         int i;
  254 
  255         for (i = 1000; i > 0; i--) {
  256                 if (sb_rd(sb, DSP_DATA_AVAIL) & 0x80)
  257                         return sb_rd(sb, DSP_READ);
  258                 else
  259                         DELAY(20);
  260         }
  261         return 0xffff;
  262 }
  263 
  264 static int
  265 sb_reset_dsp(struct sb_info *sb)
  266 {
  267         u_char b;
  268 
  269         sb_lock(sb);
  270         sb_wr(sb, SBDSP_RST, 3);
  271         DELAY(100);
  272         sb_wr(sb, SBDSP_RST, 0);
  273         b = sb_get_byte(sb);
  274         sb_unlock(sb);
  275         if (b != 0xAA) {
  276                 DEB(printf("sb_reset_dsp 0x%lx failed\n",
  277                            rman_get_start(sb->io_base)));
  278                 return ENXIO;   /* Sorry */
  279         }
  280         return 0;
  281 }
  282 
  283 /************************************************************/
  284 
  285 struct sb16_mixent {
  286         int reg;
  287         int bits;
  288         int ofs;
  289         int stereo;
  290 };
  291 
  292 static const struct sb16_mixent sb16_mixtab[32] = {
  293         [SOUND_MIXER_VOLUME]    = { 0x30, 5, 3, 1 },
  294         [SOUND_MIXER_PCM]       = { 0x32, 5, 3, 1 },
  295         [SOUND_MIXER_SYNTH]     = { 0x34, 5, 3, 1 },
  296         [SOUND_MIXER_CD]        = { 0x36, 5, 3, 1 },
  297         [SOUND_MIXER_LINE]      = { 0x38, 5, 3, 1 },
  298         [SOUND_MIXER_MIC]       = { 0x3a, 5, 3, 0 },
  299         [SOUND_MIXER_SPEAKER]   = { 0x3b, 5, 3, 0 },
  300         [SOUND_MIXER_IGAIN]     = { 0x3f, 2, 6, 1 },
  301         [SOUND_MIXER_OGAIN]     = { 0x41, 2, 6, 1 },
  302         [SOUND_MIXER_TREBLE]    = { 0x44, 4, 4, 1 },
  303         [SOUND_MIXER_BASS]      = { 0x46, 4, 4, 1 },
  304         [SOUND_MIXER_LINE1]     = { 0x52, 5, 3, 1 }
  305 };
  306 
  307 static int
  308 sb16mix_init(struct snd_mixer *m)
  309 {
  310         struct sb_info *sb = mix_getdevinfo(m);
  311 
  312         mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_SPEAKER |
  313                        SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD |
  314                        SOUND_MASK_IGAIN | SOUND_MASK_OGAIN | SOUND_MASK_LINE1 |
  315                        SOUND_MASK_VOLUME | SOUND_MASK_BASS | SOUND_MASK_TREBLE);
  316 
  317         mix_setrecdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_LINE |
  318                           SOUND_MASK_LINE1 | SOUND_MASK_MIC | SOUND_MASK_CD);
  319 
  320         sb_setmixer(sb, 0x3c, 0x1f); /* make all output active */
  321 
  322         sb_setmixer(sb, 0x3d, 0); /* make all inputs-l off */
  323         sb_setmixer(sb, 0x3e, 0); /* make all inputs-r off */
  324 
  325         return 0;
  326 }
  327 
  328 static int
  329 sb16mix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
  330 {
  331         struct sb_info *sb = mix_getdevinfo(m);
  332         const struct sb16_mixent *e;
  333         int max;
  334 
  335         e = &sb16_mixtab[dev];
  336         max = (1 << e->bits) - 1;
  337 
  338         left = (left * max) / 100;
  339         right = (right * max) / 100;
  340 
  341         sb_setmixer(sb, e->reg, left << e->ofs);
  342         if (e->stereo)
  343                 sb_setmixer(sb, e->reg + 1, right << e->ofs);
  344         else
  345                 right = left;
  346 
  347         left = (left * 100) / max;
  348         right = (right * 100) / max;
  349 
  350         return left | (right << 8);
  351 }
  352 
  353 static int
  354 sb16mix_setrecsrc(struct snd_mixer *m, u_int32_t src)
  355 {
  356         struct sb_info *sb = mix_getdevinfo(m);
  357         u_char recdev;
  358 
  359         recdev = 0;
  360         if (src & SOUND_MASK_MIC)
  361                 recdev |= 0x01; /* mono mic */
  362 
  363         if (src & SOUND_MASK_CD)
  364                 recdev |= 0x06; /* l+r cd */
  365 
  366         if (src & SOUND_MASK_LINE)
  367                 recdev |= 0x18; /* l+r line */
  368 
  369         if (src & SOUND_MASK_SYNTH)
  370                 recdev |= 0x60; /* l+r midi */
  371 
  372         sb_setmixer(sb, SB16_IMASK_L, recdev);
  373         sb_setmixer(sb, SB16_IMASK_R, recdev);
  374 
  375         /* Switch on/off FM tuner source */
  376         if (src & SOUND_MASK_LINE1)
  377                 sb_setmixer(sb, 0x4a, 0x0c);
  378         else
  379                 sb_setmixer(sb, 0x4a, 0x00);
  380 
  381         /*
  382          * since the same volume controls apply to the input and
  383          * output sections, the best approach to have a consistent
  384          * behaviour among cards would be to disable the output path
  385          * on devices which are used to record.
  386          * However, since users like to have feedback, we only disable
  387          * the mic -- permanently.
  388          */
  389         sb_setmixer(sb, SB16_OMASK, 0x1f & ~1);
  390 
  391         return src;
  392 }
  393 
  394 static kobj_method_t sb16mix_mixer_methods[] = {
  395         KOBJMETHOD(mixer_init,          sb16mix_init),
  396         KOBJMETHOD(mixer_set,           sb16mix_set),
  397         KOBJMETHOD(mixer_setrecsrc,     sb16mix_setrecsrc),
  398         { 0, 0 }
  399 };
  400 MIXER_DECLARE(sb16mix_mixer);
  401 
  402 /************************************************************/
  403 
  404 static void
  405 sb16_release_resources(struct sb_info *sb, device_t dev)
  406 {
  407         if (sb->irq) {
  408                 if (sb->ih)
  409                         bus_teardown_intr(dev, sb->irq, sb->ih);
  410                 bus_release_resource(dev, SYS_RES_IRQ, 0, sb->irq);
  411                 sb->irq = 0;
  412         }
  413         if (sb->drq2) {
  414                 if (sb->drq2 != sb->drq1) {
  415                         isa_dma_release(rman_get_start(sb->drq2));
  416                         bus_release_resource(dev, SYS_RES_DRQ, 1, sb->drq2);
  417                 }
  418                 sb->drq2 = 0;
  419         }
  420         if (sb->drq1) {
  421                 isa_dma_release(rman_get_start(sb->drq1));
  422                 bus_release_resource(dev, SYS_RES_DRQ, 0, sb->drq1);
  423                 sb->drq1 = 0;
  424         }
  425         if (sb->io_base) {
  426                 bus_release_resource(dev, SYS_RES_IOPORT, 0, sb->io_base);
  427                 sb->io_base = 0;
  428         }
  429         if (sb->parent_dmat) {
  430                 bus_dma_tag_destroy(sb->parent_dmat);
  431                 sb->parent_dmat = 0;
  432         }
  433         free(sb, M_DEVBUF);
  434 }
  435 
  436 static int
  437 sb16_alloc_resources(struct sb_info *sb, device_t dev)
  438 {
  439         int rid;
  440 
  441         rid = 0;
  442         if (!sb->io_base)
  443                 sb->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
  444 
  445         rid = 0;
  446         if (!sb->irq)
  447                 sb->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE);
  448 
  449         rid = 0;
  450         if (!sb->drq1)
  451                 sb->drq1 = bus_alloc_resource(dev, SYS_RES_DRQ, &rid, 0, ~0, 1, RF_ACTIVE);
  452 
  453         rid = 1;
  454         if (!sb->drq2)
  455                 sb->drq2 = bus_alloc_resource(dev, SYS_RES_DRQ, &rid, 0, ~0, 1, RF_ACTIVE);
  456 
  457         if (sb->io_base && sb->drq1 && sb->irq) {
  458                 isa_dma_acquire(rman_get_start(sb->drq1));
  459                 isa_dmainit(rman_get_start(sb->drq1), sb->bufsize);
  460 
  461                 if (sb->drq2) {
  462                         isa_dma_acquire(rman_get_start(sb->drq2));
  463                         isa_dmainit(rman_get_start(sb->drq2), sb->bufsize);
  464                 } else {
  465                         sb->drq2 = sb->drq1;
  466                         pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
  467                 }
  468                 return 0;
  469         } else return ENXIO;
  470 }
  471 
  472 /* sbc does locking for us */
  473 static void
  474 sb_intr(void *arg)
  475 {
  476         struct sb_info *sb = (struct sb_info *)arg;
  477         int reason = 3, c;
  478 
  479         /*
  480          * The Vibra16X has separate flags for 8 and 16 bit transfers, but
  481          * I have no idea how to tell capture from playback interrupts...
  482          */
  483 
  484         reason = 0;
  485         sb_lock(sb);
  486         c = sb_getmixer(sb, IRQ_STAT);
  487         if (c & 1)
  488                 sb_rd(sb, DSP_DATA_AVAIL); /* 8-bit int ack */
  489 
  490         if (c & 2)
  491                 sb_rd(sb, DSP_DATA_AVL16); /* 16-bit int ack */
  492         sb_unlock(sb);
  493 
  494         /*
  495          * this tells us if the source is 8-bit or 16-bit dma. We
  496          * have to check the io channel to map it to read or write...
  497          */
  498 
  499         if (sb->bd_flags & BD_F_SB16X) {
  500                 if (c & 1) { /* 8-bit format */
  501                         if (sb->pch.fmt & AFMT_8BIT)
  502                                 reason |= 1;
  503                         if (sb->rch.fmt & AFMT_8BIT)
  504                                 reason |= 2;
  505                 }
  506                 if (c & 2) { /* 16-bit format */
  507                         if (sb->pch.fmt & AFMT_16BIT)
  508                                 reason |= 1;
  509                         if (sb->rch.fmt & AFMT_16BIT)
  510                                 reason |= 2;
  511                 }
  512         } else {
  513                 if (c & 1) { /* 8-bit dma */
  514                         if (sb->pch.dch == 1)
  515                                 reason |= 1;
  516                         if (sb->rch.dch == 1)
  517                                 reason |= 2;
  518                 }
  519                 if (c & 2) { /* 16-bit dma */
  520                         if (sb->pch.dch == 2)
  521                                 reason |= 1;
  522                         if (sb->rch.dch == 2)
  523                                 reason |= 2;
  524                 }
  525         }
  526 #if 0
  527         printf("sb_intr: reason=%d c=0x%x\n", reason, c);
  528 #endif
  529         if ((reason & 1) && (sb->pch.run))
  530                 chn_intr(sb->pch.channel);
  531 
  532         if ((reason & 2) && (sb->rch.run))
  533                 chn_intr(sb->rch.channel);
  534 }
  535 
  536 static int
  537 sb_setup(struct sb_info *sb)
  538 {
  539         struct sb_chinfo *ch;
  540         u_int8_t v;
  541         int l, pprio;
  542 
  543         sb_lock(sb);
  544         if (sb->bd_flags & BD_F_DMARUN)
  545                 sndbuf_dma(sb->pch.buffer, PCMTRIG_STOP);
  546         if (sb->bd_flags & BD_F_DMARUN2)
  547                 sndbuf_dma(sb->rch.buffer, PCMTRIG_STOP);
  548         sb->bd_flags &= ~(BD_F_DMARUN | BD_F_DMARUN2);
  549 
  550         sb_reset_dsp(sb);
  551 
  552         if (sb->bd_flags & BD_F_SB16X) {
  553                 pprio = sb->pch.run? 1 : 0;
  554                 sndbuf_dmasetup(sb->pch.buffer, pprio? sb->drq1 : NULL);
  555                 sb->pch.dch = pprio? 1 : 0;
  556                 sndbuf_dmasetup(sb->rch.buffer, pprio? sb->drq2 : sb->drq1);
  557                 sb->rch.dch = pprio? 2 : 1;
  558         } else {
  559                 if (sb->pch.run && sb->rch.run) {
  560                         pprio = (sb->rch.fmt & AFMT_16BIT)? 0 : 1;
  561                         sndbuf_dmasetup(sb->pch.buffer, pprio? sb->drq2 : sb->drq1);
  562                         sb->pch.dch = pprio? 2 : 1;
  563                         sndbuf_dmasetup(sb->rch.buffer, pprio? sb->drq1 : sb->drq2);
  564                         sb->rch.dch = pprio? 1 : 2;
  565                 } else {
  566                         if (sb->pch.run) {
  567                                 sndbuf_dmasetup(sb->pch.buffer, (sb->pch.fmt & AFMT_16BIT)? sb->drq2 : sb->drq1);
  568                                 sb->pch.dch = (sb->pch.fmt & AFMT_16BIT)? 2 : 1;
  569                                 sndbuf_dmasetup(sb->rch.buffer, (sb->pch.fmt & AFMT_16BIT)? sb->drq1 : sb->drq2);
  570                                 sb->rch.dch = (sb->pch.fmt & AFMT_16BIT)? 1 : 2;
  571                         } else if (sb->rch.run) {
  572                                 sndbuf_dmasetup(sb->pch.buffer, (sb->rch.fmt & AFMT_16BIT)? sb->drq1 : sb->drq2);
  573                                 sb->pch.dch = (sb->rch.fmt & AFMT_16BIT)? 1 : 2;
  574                                 sndbuf_dmasetup(sb->rch.buffer, (sb->rch.fmt & AFMT_16BIT)? sb->drq2 : sb->drq1);
  575                                 sb->rch.dch = (sb->rch.fmt & AFMT_16BIT)? 2 : 1;
  576                         }
  577                 }
  578         }
  579 
  580         sndbuf_dmasetdir(sb->pch.buffer, PCMDIR_PLAY);
  581         sndbuf_dmasetdir(sb->rch.buffer, PCMDIR_REC);
  582 
  583         /*
  584         printf("setup: [pch = %d, pfmt = %d, pgo = %d] [rch = %d, rfmt = %d, rgo = %d]\n",
  585                sb->pch.dch, sb->pch.fmt, sb->pch.run, sb->rch.dch, sb->rch.fmt, sb->rch.run);
  586         */
  587 
  588         ch = &sb->pch;
  589         if (ch->run) {
  590                 l = ch->blksz;
  591                 if (ch->fmt & AFMT_16BIT)
  592                         l >>= 1;
  593                 l--;
  594 
  595                 /* play speed */
  596                 RANGE(ch->spd, 5000, 45000);
  597                 sb_cmd(sb, DSP_CMD_OUT16);
  598                 sb_cmd(sb, ch->spd >> 8);
  599                 sb_cmd(sb, ch->spd & 0xff);
  600 
  601                 /* play format, length */
  602                 v = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_F16_DAC;
  603                 v |= (ch->fmt & AFMT_16BIT)? DSP_DMA16 : DSP_DMA8;
  604                 sb_cmd(sb, v);
  605 
  606                 v = (ch->fmt & AFMT_STEREO)? DSP_F16_STEREO : 0;
  607                 v |= (ch->fmt & AFMT_SIGNED)? DSP_F16_SIGNED : 0;
  608                 sb_cmd2(sb, v, l);
  609                 sndbuf_dma(ch->buffer, PCMTRIG_START);
  610                 sb->bd_flags |= BD_F_DMARUN;
  611         }
  612 
  613         ch = &sb->rch;
  614         if (ch->run) {
  615                 l = ch->blksz;
  616                 if (ch->fmt & AFMT_16BIT)
  617                         l >>= 1;
  618                 l--;
  619 
  620                 /* record speed */
  621                 RANGE(ch->spd, 5000, 45000);
  622                 sb_cmd(sb, DSP_CMD_IN16);
  623                 sb_cmd(sb, ch->spd >> 8);
  624                 sb_cmd(sb, ch->spd & 0xff);
  625 
  626                 /* record format, length */
  627                 v = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_F16_ADC;
  628                 v |= (ch->fmt & AFMT_16BIT)? DSP_DMA16 : DSP_DMA8;
  629                 sb_cmd(sb, v);
  630 
  631                 v = (ch->fmt & AFMT_STEREO)? DSP_F16_STEREO : 0;
  632                 v |= (ch->fmt & AFMT_SIGNED)? DSP_F16_SIGNED : 0;
  633                 sb_cmd2(sb, v, l);
  634                 sndbuf_dma(ch->buffer, PCMTRIG_START);
  635                 sb->bd_flags |= BD_F_DMARUN2;
  636         }
  637         sb_unlock(sb);
  638 
  639         return 0;
  640 }
  641 
  642 /* channel interface */
  643 static void *
  644 sb16chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
  645 {
  646         struct sb_info *sb = devinfo;
  647         struct sb_chinfo *ch = (dir == PCMDIR_PLAY)? &sb->pch : &sb->rch;
  648 
  649         ch->parent = sb;
  650         ch->channel = c;
  651         ch->buffer = b;
  652         ch->dir = dir;
  653 
  654         if (sndbuf_alloc(ch->buffer, sb->parent_dmat, sb->bufsize) == -1)
  655                 return NULL;
  656 
  657         return ch;
  658 }
  659 
  660 static int
  661 sb16chan_setformat(kobj_t obj, void *data, u_int32_t format)
  662 {
  663         struct sb_chinfo *ch = data;
  664         struct sb_info *sb = ch->parent;
  665 
  666         ch->fmt = format;
  667         sb->prio = ch->dir;
  668         sb->prio16 = (ch->fmt & AFMT_16BIT)? 1 : 0;
  669 
  670         return 0;
  671 }
  672 
  673 static int
  674 sb16chan_setspeed(kobj_t obj, void *data, u_int32_t speed)
  675 {
  676         struct sb_chinfo *ch = data;
  677 
  678         ch->spd = speed;
  679         return speed;
  680 }
  681 
  682 static int
  683 sb16chan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
  684 {
  685         struct sb_chinfo *ch = data;
  686 
  687         ch->blksz = blocksize;
  688         return ch->blksz;
  689 }
  690 
  691 static int
  692 sb16chan_trigger(kobj_t obj, void *data, int go)
  693 {
  694         struct sb_chinfo *ch = data;
  695         struct sb_info *sb = ch->parent;
  696 
  697         if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD)
  698                 return 0;
  699 
  700         if (go == PCMTRIG_START)
  701                 ch->run = 1;
  702         else
  703                 ch->run = 0;
  704 
  705         sb_setup(sb);
  706 
  707         return 0;
  708 }
  709 
  710 static int
  711 sb16chan_getptr(kobj_t obj, void *data)
  712 {
  713         struct sb_chinfo *ch = data;
  714 
  715         return sndbuf_dmaptr(ch->buffer);
  716 }
  717 
  718 static struct pcmchan_caps *
  719 sb16chan_getcaps(kobj_t obj, void *data)
  720 {
  721         struct sb_chinfo *ch = data;
  722         struct sb_info *sb = ch->parent;
  723 
  724         if ((sb->prio == 0) || (sb->prio == ch->dir))
  725                 return &sb16x_caps;
  726         else
  727                 return sb->prio16? &sb16_caps8 : &sb16_caps16;
  728 }
  729 
  730 static int
  731 sb16chan_resetdone(kobj_t obj, void *data)
  732 {
  733         struct sb_chinfo *ch = data;
  734         struct sb_info *sb = ch->parent;
  735 
  736         sb->prio = 0;
  737 
  738         return 0;
  739 }
  740 
  741 static kobj_method_t sb16chan_methods[] = {
  742         KOBJMETHOD(channel_init,                sb16chan_init),
  743         KOBJMETHOD(channel_resetdone,           sb16chan_resetdone),
  744         KOBJMETHOD(channel_setformat,           sb16chan_setformat),
  745         KOBJMETHOD(channel_setspeed,            sb16chan_setspeed),
  746         KOBJMETHOD(channel_setblocksize,        sb16chan_setblocksize),
  747         KOBJMETHOD(channel_trigger,             sb16chan_trigger),
  748         KOBJMETHOD(channel_getptr,              sb16chan_getptr),
  749         KOBJMETHOD(channel_getcaps,             sb16chan_getcaps),
  750         { 0, 0 }
  751 };
  752 CHANNEL_DECLARE(sb16chan);
  753 
  754 /************************************************************/
  755 
  756 static int
  757 sb16_probe(device_t dev)
  758 {
  759         char buf[64];
  760         uintptr_t func, ver, r, f;
  761 
  762         /* The parent device has already been probed. */
  763         r = BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func);
  764         if (func != SCF_PCM)
  765                 return (ENXIO);
  766 
  767         r = BUS_READ_IVAR(device_get_parent(dev), dev, 1, &ver);
  768         f = (ver & 0xffff0000) >> 16;
  769         ver &= 0x0000ffff;
  770         if (f & BD_F_SB16) {
  771                 snprintf(buf, sizeof buf, "SB16 DSP %d.%02d%s", (int) ver >> 8, (int) ver & 0xff,
  772                          (f & BD_F_SB16X)? " (ViBRA16X)" : "");
  773                 device_set_desc_copy(dev, buf);
  774                 return 0;
  775         } else
  776                 return (ENXIO);
  777 }
  778 
  779 static int
  780 sb16_attach(device_t dev)
  781 {
  782         struct sb_info *sb;
  783         uintptr_t ver;
  784         char status[SND_STATUSLEN], status2[SND_STATUSLEN];
  785 
  786         sb = (struct sb_info *)malloc(sizeof *sb, M_DEVBUF, M_NOWAIT | M_ZERO);
  787         if (!sb)
  788                 return ENXIO;
  789 
  790         sb->parent_dev = device_get_parent(dev);
  791         BUS_READ_IVAR(sb->parent_dev, dev, 1, &ver);
  792         sb->bd_id = ver & 0x0000ffff;
  793         sb->bd_flags = (ver & 0xffff0000) >> 16;
  794         sb->bufsize = pcm_getbuffersize(dev, 4096, SB16_BUFFSIZE, 65536);
  795 
  796         if (sb16_alloc_resources(sb, dev))
  797                 goto no;
  798         if (sb_reset_dsp(sb))
  799                 goto no;
  800         if (mixer_init(dev, &sb16mix_mixer_class, sb))
  801                 goto no;
  802         if (snd_setup_intr(dev, sb->irq, INTR_MPSAFE, sb_intr, sb, &sb->ih))
  803                 goto no;
  804 
  805         if (sb->bd_flags & BD_F_SB16X)
  806                 pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
  807 
  808         sb->prio = 0;
  809 
  810         if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
  811                         /*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
  812                         /*highaddr*/BUS_SPACE_MAXADDR,
  813                         /*filter*/NULL, /*filterarg*/NULL,
  814                         /*maxsize*/sb->bufsize, /*nsegments*/1,
  815                         /*maxsegz*/0x3ffff, /*flags*/0,
  816                         /*lockfunc*/busdma_lock_mutex, /*lockarg*/&Giant,
  817                         &sb->parent_dmat) != 0) {
  818                 device_printf(dev, "unable to create dma tag\n");
  819                 goto no;
  820         }
  821 
  822         if (!(pcm_getflags(dev) & SD_F_SIMPLEX))
  823                 snprintf(status2, SND_STATUSLEN, ":%ld", rman_get_start(sb->drq2));
  824         else
  825                 status2[0] = '\0';
  826 
  827         snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld drq %ld%s bufsz %ud",
  828                 rman_get_start(sb->io_base), rman_get_start(sb->irq),
  829                 rman_get_start(sb->drq1), status2, sb->bufsize);
  830 
  831         if (pcm_register(dev, sb, 1, 1))
  832                 goto no;
  833         pcm_addchan(dev, PCMDIR_REC, &sb16chan_class, sb);
  834         pcm_addchan(dev, PCMDIR_PLAY, &sb16chan_class, sb);
  835 
  836         pcm_setstatus(dev, status);
  837 
  838         return 0;
  839 
  840 no:
  841         sb16_release_resources(sb, dev);
  842         return ENXIO;
  843 }
  844 
  845 static int
  846 sb16_detach(device_t dev)
  847 {
  848         int r;
  849         struct sb_info *sb;
  850 
  851         r = pcm_unregister(dev);
  852         if (r)
  853                 return r;
  854 
  855         sb = pcm_getdevinfo(dev);
  856         sb16_release_resources(sb, dev);
  857         return 0;
  858 }
  859 
  860 static device_method_t sb16_methods[] = {
  861         /* Device interface */
  862         DEVMETHOD(device_probe,         sb16_probe),
  863         DEVMETHOD(device_attach,        sb16_attach),
  864         DEVMETHOD(device_detach,        sb16_detach),
  865 
  866         { 0, 0 }
  867 };
  868 
  869 static driver_t sb16_driver = {
  870         "pcm",
  871         sb16_methods,
  872         PCM_SOFTC_SIZE,
  873 };
  874 
  875 DRIVER_MODULE(snd_sb16, sbc, sb16_driver, pcm_devclass, 0, 0);
  876 MODULE_DEPEND(snd_sb16, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER);
  877 MODULE_DEPEND(snd_sb16, snd_sbc, 1, 1, 1);
  878 MODULE_VERSION(snd_sb16, 1);

Cache object: bf5dd30374c9934593577c7692d8eb4e


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