The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: 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  * 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: stable/12/sys/dev/sound/isa/sb16.c 326255 2017-11-27 14:52:40Z pfg $");
   48 
   49 #define SB16_BUFFSIZE   4096
   50 #define PLAIN_SB16(x) ((((x)->bd_flags) & (BD_F_SB16|BD_F_SB16X)) == BD_F_SB16)
   51 
   52 static u_int32_t sb16_fmt8[] = {
   53         SND_FORMAT(AFMT_U8, 1, 0),
   54         SND_FORMAT(AFMT_U8, 2, 0),
   55         0
   56 };
   57 static struct pcmchan_caps sb16_caps8 = {5000, 45000, sb16_fmt8, 0};
   58 
   59 static u_int32_t sb16_fmt16[] = {
   60         SND_FORMAT(AFMT_S16_LE, 1, 0),
   61         SND_FORMAT(AFMT_S16_LE, 2, 0),
   62         0
   63 };
   64 static struct pcmchan_caps sb16_caps16 = {5000, 45000, sb16_fmt16, 0};
   65 
   66 static u_int32_t sb16x_fmt[] = {
   67         SND_FORMAT(AFMT_U8, 1, 0),
   68         SND_FORMAT(AFMT_U8, 2, 0),
   69         SND_FORMAT(AFMT_S16_LE, 1, 0),
   70         SND_FORMAT(AFMT_S16_LE, 2, 0),
   71         0
   72 };
   73 static struct pcmchan_caps sb16x_caps = {5000, 49000, sb16x_fmt, 0};
   74 
   75 struct sb_info;
   76 
   77 struct sb_chinfo {
   78         struct sb_info *parent;
   79         struct pcm_channel *channel;
   80         struct snd_dbuf *buffer;
   81         int dir, run, dch;
   82         u_int32_t fmt, spd, blksz;
   83 };
   84 
   85 struct sb_info {
   86         struct resource *io_base;       /* I/O address for the board */
   87         struct resource *irq;
   88         struct resource *drq1;
   89         struct resource *drq2;
   90         void *ih;
   91         bus_dma_tag_t parent_dmat;
   92 
   93         unsigned int bufsize;
   94         int bd_id;
   95         u_long bd_flags;       /* board-specific flags */
   96         int prio, prio16;
   97         struct sb_chinfo pch, rch;
   98         device_t parent_dev;
   99 };
  100 
  101 #if 0
  102 static void sb_lock(struct sb_info *sb);
  103 static void sb_unlock(struct sb_info *sb);
  104 static int sb_rd(struct sb_info *sb, int reg);
  105 static void sb_wr(struct sb_info *sb, int reg, u_int8_t val);
  106 static int sb_cmd(struct sb_info *sb, u_char val);
  107 /* static int sb_cmd1(struct sb_info *sb, u_char cmd, int val); */
  108 static int sb_cmd2(struct sb_info *sb, u_char cmd, int val);
  109 static u_int sb_get_byte(struct sb_info *sb);
  110 static void sb_setmixer(struct sb_info *sb, u_int port, u_int value);
  111 static int sb_getmixer(struct sb_info *sb, u_int port);
  112 static int sb_reset_dsp(struct sb_info *sb);
  113 
  114 static void sb_intr(void *arg);
  115 #endif
  116 
  117 /*
  118  * Common code for the midi and pcm functions
  119  *
  120  * sb_cmd write a single byte to the CMD port.
  121  * sb_cmd1 write a CMD + 1 byte arg
  122  * sb_cmd2 write a CMD + 2 byte arg
  123  * sb_get_byte returns a single byte from the DSP data port
  124  */
  125 
  126 static void
  127 sb_lock(struct sb_info *sb) {
  128 
  129         sbc_lock(device_get_softc(sb->parent_dev));
  130 }
  131 
  132 static void
  133 sb_lockassert(struct sb_info *sb) {
  134 
  135         sbc_lockassert(device_get_softc(sb->parent_dev));
  136 }
  137 
  138 static void
  139 sb_unlock(struct sb_info *sb) {
  140 
  141         sbc_unlock(device_get_softc(sb->parent_dev));
  142 }
  143 
  144 static int
  145 port_rd(struct resource *port, int off)
  146 {
  147         return bus_space_read_1(rman_get_bustag(port), rman_get_bushandle(port), off);
  148 }
  149 
  150 static void
  151 port_wr(struct resource *port, int off, u_int8_t data)
  152 {
  153         bus_space_write_1(rman_get_bustag(port), rman_get_bushandle(port), off, data);
  154 }
  155 
  156 static int
  157 sb_rd(struct sb_info *sb, int reg)
  158 {
  159         return port_rd(sb->io_base, reg);
  160 }
  161 
  162 static void
  163 sb_wr(struct sb_info *sb, int reg, u_int8_t val)
  164 {
  165         port_wr(sb->io_base, reg, val);
  166 }
  167 
  168 static int
  169 sb_dspwr(struct sb_info *sb, u_char val)
  170 {
  171         int  i;
  172 
  173         for (i = 0; i < 1000; i++) {
  174                 if ((sb_rd(sb, SBDSP_STATUS) & 0x80))
  175                         DELAY((i > 100)? 1000 : 10);
  176                 else {
  177                         sb_wr(sb, SBDSP_CMD, val);
  178                         return 1;
  179                 }
  180         }
  181         if (curthread->td_intr_nesting_level == 0)
  182                 printf("sb_dspwr(0x%02x) timed out.\n", val);
  183         return 0;
  184 }
  185 
  186 static int
  187 sb_cmd(struct sb_info *sb, u_char val)
  188 {
  189 #if 0
  190         printf("sb_cmd: %x\n", val);
  191 #endif
  192         return sb_dspwr(sb, val);
  193 }
  194 
  195 /*
  196 static int
  197 sb_cmd1(struct sb_info *sb, u_char cmd, int val)
  198 {
  199 #if 0
  200         printf("sb_cmd1: %x, %x\n", cmd, val);
  201 #endif
  202         if (sb_dspwr(sb, cmd)) {
  203                 return sb_dspwr(sb, val & 0xff);
  204         } else return 0;
  205 }
  206 */
  207 
  208 static int
  209 sb_cmd2(struct sb_info *sb, u_char cmd, int val)
  210 {
  211         int r;
  212 
  213 #if 0
  214         printf("sb_cmd2: %x, %x\n", cmd, val);
  215 #endif
  216         sb_lockassert(sb);
  217         r = 0;
  218         if (sb_dspwr(sb, cmd)) {
  219                 if (sb_dspwr(sb, val & 0xff)) {
  220                         if (sb_dspwr(sb, (val >> 8) & 0xff)) {
  221                                 r = 1;
  222                         }
  223                 }
  224         }
  225 
  226         return r;
  227 }
  228 
  229 /*
  230  * in the SB, there is a set of indirect "mixer" registers with
  231  * address at offset 4, data at offset 5
  232  */
  233 static void
  234 sb_setmixer(struct sb_info *sb, u_int port, u_int value)
  235 {
  236         sb_lock(sb);
  237         sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
  238         DELAY(10);
  239         sb_wr(sb, SB_MIX_DATA, (u_char) (value & 0xff));
  240         DELAY(10);
  241         sb_unlock(sb);
  242 }
  243 
  244 static int
  245 sb_getmixer(struct sb_info *sb, u_int port)
  246 {
  247         int val;
  248 
  249         sb_lockassert(sb);
  250         sb_wr(sb, SB_MIX_ADDR, (u_char) (port & 0xff)); /* Select register */
  251         DELAY(10);
  252         val = sb_rd(sb, SB_MIX_DATA);
  253         DELAY(10);
  254 
  255         return val;
  256 }
  257 
  258 static u_int
  259 sb_get_byte(struct sb_info *sb)
  260 {
  261         int i;
  262 
  263         for (i = 1000; i > 0; i--) {
  264                 if (sb_rd(sb, DSP_DATA_AVAIL) & 0x80)
  265                         return sb_rd(sb, DSP_READ);
  266                 else
  267                         DELAY(20);
  268         }
  269         return 0xffff;
  270 }
  271 
  272 static int
  273 sb_reset_dsp(struct sb_info *sb)
  274 {
  275         u_char b;
  276 
  277         sb_lockassert(sb);
  278         sb_wr(sb, SBDSP_RST, 3);
  279         DELAY(100);
  280         sb_wr(sb, SBDSP_RST, 0);
  281         b = sb_get_byte(sb);
  282         if (b != 0xAA) {
  283                 DEB(printf("sb_reset_dsp 0x%lx failed\n",
  284                            rman_get_start(sb->io_base)));
  285                 return ENXIO;   /* Sorry */
  286         }
  287         return 0;
  288 }
  289 
  290 /************************************************************/
  291 
  292 struct sb16_mixent {
  293         int reg;
  294         int bits;
  295         int ofs;
  296         int stereo;
  297 };
  298 
  299 static const struct sb16_mixent sb16_mixtab[32] = {
  300         [SOUND_MIXER_VOLUME]    = { 0x30, 5, 3, 1 },
  301         [SOUND_MIXER_PCM]       = { 0x32, 5, 3, 1 },
  302         [SOUND_MIXER_SYNTH]     = { 0x34, 5, 3, 1 },
  303         [SOUND_MIXER_CD]        = { 0x36, 5, 3, 1 },
  304         [SOUND_MIXER_LINE]      = { 0x38, 5, 3, 1 },
  305         [SOUND_MIXER_MIC]       = { 0x3a, 5, 3, 0 },
  306         [SOUND_MIXER_SPEAKER]   = { 0x3b, 5, 3, 0 },
  307         [SOUND_MIXER_IGAIN]     = { 0x3f, 2, 6, 1 },
  308         [SOUND_MIXER_OGAIN]     = { 0x41, 2, 6, 1 },
  309         [SOUND_MIXER_TREBLE]    = { 0x44, 4, 4, 1 },
  310         [SOUND_MIXER_BASS]      = { 0x46, 4, 4, 1 },
  311         [SOUND_MIXER_LINE1]     = { 0x52, 5, 3, 1 }
  312 };
  313 
  314 static int
  315 sb16mix_init(struct snd_mixer *m)
  316 {
  317         struct sb_info *sb = mix_getdevinfo(m);
  318 
  319         mix_setdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_SPEAKER |
  320                        SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD |
  321                        SOUND_MASK_IGAIN | SOUND_MASK_OGAIN | SOUND_MASK_LINE1 |
  322                        SOUND_MASK_VOLUME | SOUND_MASK_BASS | SOUND_MASK_TREBLE);
  323 
  324         mix_setrecdevs(m, SOUND_MASK_SYNTH | SOUND_MASK_LINE |
  325                           SOUND_MASK_LINE1 | SOUND_MASK_MIC | SOUND_MASK_CD);
  326 
  327         sb_setmixer(sb, 0x3c, 0x1f); /* make all output active */
  328 
  329         sb_setmixer(sb, 0x3d, 0); /* make all inputs-l off */
  330         sb_setmixer(sb, 0x3e, 0); /* make all inputs-r off */
  331 
  332         return 0;
  333 }
  334 
  335 static int
  336 rel2abs_volume(int x, int max)
  337 {
  338         int temp;
  339         
  340         temp = ((x * max) + 50) / 100;
  341         if (temp > max)
  342                 temp = max;
  343         else if (temp < 0)
  344                 temp = 0;
  345         return (temp);
  346 }
  347 
  348 static int
  349 sb16mix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
  350 {
  351         struct sb_info *sb = mix_getdevinfo(m);
  352         const struct sb16_mixent *e;
  353         int max;
  354 
  355         e = &sb16_mixtab[dev];
  356         max = (1 << e->bits) - 1;
  357 
  358         left = rel2abs_volume(left, max);
  359         right = rel2abs_volume(right, max);
  360 
  361         sb_setmixer(sb, e->reg, left << e->ofs);
  362         if (e->stereo)
  363                 sb_setmixer(sb, e->reg + 1, right << e->ofs);
  364         else
  365                 right = left;
  366 
  367         left = (left * 100) / max;
  368         right = (right * 100) / max;
  369 
  370         return left | (right << 8);
  371 }
  372 
  373 static u_int32_t
  374 sb16mix_setrecsrc(struct snd_mixer *m, u_int32_t src)
  375 {
  376         struct sb_info *sb = mix_getdevinfo(m);
  377         u_char recdev_l, recdev_r;
  378 
  379         recdev_l = 0;
  380         recdev_r = 0;
  381         if (src & SOUND_MASK_MIC) {
  382                 recdev_l |= 0x01; /* mono mic */
  383                 recdev_r |= 0x01;
  384         }
  385 
  386         if (src & SOUND_MASK_CD) {
  387                 recdev_l |= 0x04; /* l cd */
  388                 recdev_r |= 0x02; /* r cd */
  389         }
  390 
  391         if (src & SOUND_MASK_LINE) {
  392                 recdev_l |= 0x10; /* l line */
  393                 recdev_r |= 0x08; /* r line */
  394         }
  395 
  396         if (src & SOUND_MASK_SYNTH) {
  397                 recdev_l |= 0x40; /* l midi */
  398                 recdev_r |= 0x20; /* r midi */
  399         }
  400 
  401         sb_setmixer(sb, SB16_IMASK_L, recdev_l);
  402         sb_setmixer(sb, SB16_IMASK_R, recdev_r);
  403 
  404         /* Switch on/off FM tuner source */
  405         if (src & SOUND_MASK_LINE1)
  406                 sb_setmixer(sb, 0x4a, 0x0c);
  407         else
  408                 sb_setmixer(sb, 0x4a, 0x00);
  409 
  410         /*
  411          * since the same volume controls apply to the input and
  412          * output sections, the best approach to have a consistent
  413          * behaviour among cards would be to disable the output path
  414          * on devices which are used to record.
  415          * However, since users like to have feedback, we only disable
  416          * the mic -- permanently.
  417          */
  418         sb_setmixer(sb, SB16_OMASK, 0x1f & ~1);
  419 
  420         return src;
  421 }
  422 
  423 static kobj_method_t sb16mix_mixer_methods[] = {
  424         KOBJMETHOD(mixer_init,          sb16mix_init),
  425         KOBJMETHOD(mixer_set,           sb16mix_set),
  426         KOBJMETHOD(mixer_setrecsrc,     sb16mix_setrecsrc),
  427         KOBJMETHOD_END
  428 };
  429 MIXER_DECLARE(sb16mix_mixer);
  430 
  431 /************************************************************/
  432 
  433 static void
  434 sb16_release_resources(struct sb_info *sb, device_t dev)
  435 {
  436         if (sb->irq) {
  437                 if (sb->ih)
  438                         bus_teardown_intr(dev, sb->irq, sb->ih);
  439                 bus_release_resource(dev, SYS_RES_IRQ, 0, sb->irq);
  440                 sb->irq = NULL;
  441         }
  442         if (sb->drq2) {
  443                 if (sb->drq2 != sb->drq1) {
  444                         isa_dma_release(rman_get_start(sb->drq2));
  445                         bus_release_resource(dev, SYS_RES_DRQ, 1, sb->drq2);
  446                 }
  447                 sb->drq2 = NULL;
  448         }
  449         if (sb->drq1) {
  450                 isa_dma_release(rman_get_start(sb->drq1));
  451                 bus_release_resource(dev, SYS_RES_DRQ, 0, sb->drq1);
  452                 sb->drq1 = NULL;
  453         }
  454         if (sb->io_base) {
  455                 bus_release_resource(dev, SYS_RES_IOPORT, 0, sb->io_base);
  456                 sb->io_base = NULL;
  457         }
  458         if (sb->parent_dmat) {
  459                 bus_dma_tag_destroy(sb->parent_dmat);
  460                 sb->parent_dmat = 0;
  461         }
  462         free(sb, M_DEVBUF);
  463 }
  464 
  465 static int
  466 sb16_alloc_resources(struct sb_info *sb, device_t dev)
  467 {
  468         int rid;
  469 
  470         rid = 0;
  471         if (!sb->io_base)
  472                 sb->io_base = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
  473                         &rid, RF_ACTIVE);
  474 
  475         rid = 0;
  476         if (!sb->irq)
  477                 sb->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
  478                         RF_ACTIVE);
  479 
  480         rid = 0;
  481         if (!sb->drq1)
  482                 sb->drq1 = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
  483                         RF_ACTIVE);
  484 
  485         rid = 1;
  486         if (!sb->drq2)
  487                 sb->drq2 = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
  488                         RF_ACTIVE);
  489 
  490         if (sb->io_base && sb->drq1 && sb->irq) {
  491                 isa_dma_acquire(rman_get_start(sb->drq1));
  492                 isa_dmainit(rman_get_start(sb->drq1), sb->bufsize);
  493 
  494                 if (sb->drq2) {
  495                         isa_dma_acquire(rman_get_start(sb->drq2));
  496                         isa_dmainit(rman_get_start(sb->drq2), sb->bufsize);
  497                 } else {
  498                         sb->drq2 = sb->drq1;
  499                         pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
  500                 }
  501                 return 0;
  502         } else return ENXIO;
  503 }
  504 
  505 /* sbc does locking for us */
  506 static void
  507 sb_intr(void *arg)
  508 {
  509         struct sb_info *sb = (struct sb_info *)arg;
  510         int reason, c;
  511 
  512         /*
  513          * The Vibra16X has separate flags for 8 and 16 bit transfers, but
  514          * I have no idea how to tell capture from playback interrupts...
  515          */
  516 
  517         reason = 0;
  518         sb_lock(sb);
  519         c = sb_getmixer(sb, IRQ_STAT);
  520         if (c & 1)
  521                 sb_rd(sb, DSP_DATA_AVAIL); /* 8-bit int ack */
  522 
  523         if (c & 2)
  524                 sb_rd(sb, DSP_DATA_AVL16); /* 16-bit int ack */
  525         sb_unlock(sb);
  526 
  527         /*
  528          * this tells us if the source is 8-bit or 16-bit dma. We
  529          * have to check the io channel to map it to read or write...
  530          */
  531 
  532         if (sb->bd_flags & BD_F_SB16X) {
  533                 if (c & 1) { /* 8-bit format */
  534                         if (sb->pch.fmt & AFMT_8BIT)
  535                                 reason |= 1;
  536                         if (sb->rch.fmt & AFMT_8BIT)
  537                                 reason |= 2;
  538                 }
  539                 if (c & 2) { /* 16-bit format */
  540                         if (sb->pch.fmt & AFMT_16BIT)
  541                                 reason |= 1;
  542                         if (sb->rch.fmt & AFMT_16BIT)
  543                                 reason |= 2;
  544                 }
  545         } else {
  546                 if (c & 1) { /* 8-bit dma */
  547                         if (sb->pch.dch == 1)
  548                                 reason |= 1;
  549                         if (sb->rch.dch == 1)
  550                                 reason |= 2;
  551                 }
  552                 if (c & 2) { /* 16-bit dma */
  553                         if (sb->pch.dch == 2)
  554                                 reason |= 1;
  555                         if (sb->rch.dch == 2)
  556                                 reason |= 2;
  557                 }
  558         }
  559 #if 0
  560         printf("sb_intr: reason=%d c=0x%x\n", reason, c);
  561 #endif
  562         if ((reason & 1) && (sb->pch.run))
  563                 chn_intr(sb->pch.channel);
  564 
  565         if ((reason & 2) && (sb->rch.run))
  566                 chn_intr(sb->rch.channel);
  567 }
  568 
  569 static int
  570 sb_setup(struct sb_info *sb)
  571 {
  572         struct sb_chinfo *ch;
  573         u_int8_t v;
  574         int l, pprio;
  575 
  576         sb_lock(sb);
  577         if (sb->bd_flags & BD_F_DMARUN)
  578                 sndbuf_dma(sb->pch.buffer, PCMTRIG_STOP);
  579         if (sb->bd_flags & BD_F_DMARUN2)
  580                 sndbuf_dma(sb->rch.buffer, PCMTRIG_STOP);
  581         sb->bd_flags &= ~(BD_F_DMARUN | BD_F_DMARUN2);
  582 
  583         sb_reset_dsp(sb);
  584 
  585         if (sb->bd_flags & BD_F_SB16X) {
  586                 /* full-duplex doesn't work! */
  587                 pprio = sb->pch.run? 1 : 0;
  588                 sndbuf_dmasetup(sb->pch.buffer, pprio? sb->drq1 : sb->drq2);
  589                 sb->pch.dch = pprio? 1 : 0;
  590                 sndbuf_dmasetup(sb->rch.buffer, pprio? sb->drq2 : sb->drq1);
  591                 sb->rch.dch = pprio? 2 : 1;
  592         } else {
  593                 if (sb->pch.run && sb->rch.run) {
  594                         pprio = (sb->rch.fmt & AFMT_16BIT)? 0 : 1;
  595                         sndbuf_dmasetup(sb->pch.buffer, pprio? sb->drq2 : sb->drq1);
  596                         sb->pch.dch = pprio? 2 : 1;
  597                         sndbuf_dmasetup(sb->rch.buffer, pprio? sb->drq1 : sb->drq2);
  598                         sb->rch.dch = pprio? 1 : 2;
  599                 } else {
  600                         if (sb->pch.run) {
  601                                 sndbuf_dmasetup(sb->pch.buffer, (sb->pch.fmt & AFMT_16BIT)? sb->drq2 : sb->drq1);
  602                                 sb->pch.dch = (sb->pch.fmt & AFMT_16BIT)? 2 : 1;
  603                                 sndbuf_dmasetup(sb->rch.buffer, (sb->pch.fmt & AFMT_16BIT)? sb->drq1 : sb->drq2);
  604                                 sb->rch.dch = (sb->pch.fmt & AFMT_16BIT)? 1 : 2;
  605                         } else if (sb->rch.run) {
  606                                 sndbuf_dmasetup(sb->pch.buffer, (sb->rch.fmt & AFMT_16BIT)? sb->drq1 : sb->drq2);
  607                                 sb->pch.dch = (sb->rch.fmt & AFMT_16BIT)? 1 : 2;
  608                                 sndbuf_dmasetup(sb->rch.buffer, (sb->rch.fmt & AFMT_16BIT)? sb->drq2 : sb->drq1);
  609                                 sb->rch.dch = (sb->rch.fmt & AFMT_16BIT)? 2 : 1;
  610                         }
  611                 }
  612         }
  613 
  614         sndbuf_dmasetdir(sb->pch.buffer, PCMDIR_PLAY);
  615         sndbuf_dmasetdir(sb->rch.buffer, PCMDIR_REC);
  616 
  617         /*
  618         printf("setup: [pch = %d, pfmt = %d, pgo = %d] [rch = %d, rfmt = %d, rgo = %d]\n",
  619                sb->pch.dch, sb->pch.fmt, sb->pch.run, sb->rch.dch, sb->rch.fmt, sb->rch.run);
  620         */
  621 
  622         ch = &sb->pch;
  623         if (ch->run) {
  624                 l = ch->blksz;
  625                 if (ch->fmt & AFMT_16BIT)
  626                         l >>= 1;
  627                 l--;
  628 
  629                 /* play speed */
  630                 RANGE(ch->spd, 5000, 45000);
  631                 sb_cmd(sb, DSP_CMD_OUT16);
  632                 sb_cmd(sb, ch->spd >> 8);
  633                 sb_cmd(sb, ch->spd & 0xff);
  634 
  635                 /* play format, length */
  636                 v = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_F16_DAC;
  637                 v |= (ch->fmt & AFMT_16BIT)? DSP_DMA16 : DSP_DMA8;
  638                 sb_cmd(sb, v);
  639 
  640                 v = (AFMT_CHANNEL(ch->fmt) > 1)? DSP_F16_STEREO : 0;
  641                 v |= (ch->fmt & AFMT_SIGNED)? DSP_F16_SIGNED : 0;
  642                 sb_cmd2(sb, v, l);
  643                 sndbuf_dma(ch->buffer, PCMTRIG_START);
  644                 sb->bd_flags |= BD_F_DMARUN;
  645         }
  646 
  647         ch = &sb->rch;
  648         if (ch->run) {
  649                 l = ch->blksz;
  650                 if (ch->fmt & AFMT_16BIT)
  651                         l >>= 1;
  652                 l--;
  653 
  654                 /* record speed */
  655                 RANGE(ch->spd, 5000, 45000);
  656                 sb_cmd(sb, DSP_CMD_IN16);
  657                 sb_cmd(sb, ch->spd >> 8);
  658                 sb_cmd(sb, ch->spd & 0xff);
  659 
  660                 /* record format, length */
  661                 v = DSP_F16_AUTO | DSP_F16_FIFO_ON | DSP_F16_ADC;
  662                 v |= (ch->fmt & AFMT_16BIT)? DSP_DMA16 : DSP_DMA8;
  663                 sb_cmd(sb, v);
  664 
  665                 v = (AFMT_CHANNEL(ch->fmt) > 1)? DSP_F16_STEREO : 0;
  666                 v |= (ch->fmt & AFMT_SIGNED)? DSP_F16_SIGNED : 0;
  667                 sb_cmd2(sb, v, l);
  668                 sndbuf_dma(ch->buffer, PCMTRIG_START);
  669                 sb->bd_flags |= BD_F_DMARUN2;
  670         }
  671         sb_unlock(sb);
  672 
  673         return 0;
  674 }
  675 
  676 /* channel interface */
  677 static void *
  678 sb16chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
  679 {
  680         struct sb_info *sb = devinfo;
  681         struct sb_chinfo *ch = (dir == PCMDIR_PLAY)? &sb->pch : &sb->rch;
  682 
  683         ch->parent = sb;
  684         ch->channel = c;
  685         ch->buffer = b;
  686         ch->dir = dir;
  687 
  688         if (sndbuf_alloc(ch->buffer, sb->parent_dmat, 0, sb->bufsize) != 0)
  689                 return NULL;
  690 
  691         return ch;
  692 }
  693 
  694 static int
  695 sb16chan_setformat(kobj_t obj, void *data, u_int32_t format)
  696 {
  697         struct sb_chinfo *ch = data;
  698         struct sb_info *sb = ch->parent;
  699 
  700         ch->fmt = format;
  701         sb->prio = ch->dir;
  702         sb->prio16 = (ch->fmt & AFMT_16BIT)? 1 : 0;
  703 
  704         return 0;
  705 }
  706 
  707 static u_int32_t
  708 sb16chan_setspeed(kobj_t obj, void *data, u_int32_t speed)
  709 {
  710         struct sb_chinfo *ch = data;
  711 
  712         ch->spd = speed;
  713         return speed;
  714 }
  715 
  716 static u_int32_t
  717 sb16chan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
  718 {
  719         struct sb_chinfo *ch = data;
  720 
  721         ch->blksz = blocksize;
  722         return ch->blksz;
  723 }
  724 
  725 static int
  726 sb16chan_trigger(kobj_t obj, void *data, int go)
  727 {
  728         struct sb_chinfo *ch = data;
  729         struct sb_info *sb = ch->parent;
  730 
  731         if (!PCMTRIG_COMMON(go))
  732                 return 0;
  733 
  734         if (go == PCMTRIG_START)
  735                 ch->run = 1;
  736         else
  737                 ch->run = 0;
  738 
  739         sb_setup(sb);
  740 
  741         return 0;
  742 }
  743 
  744 static u_int32_t
  745 sb16chan_getptr(kobj_t obj, void *data)
  746 {
  747         struct sb_chinfo *ch = data;
  748 
  749         return sndbuf_dmaptr(ch->buffer);
  750 }
  751 
  752 static struct pcmchan_caps *
  753 sb16chan_getcaps(kobj_t obj, void *data)
  754 {
  755         struct sb_chinfo *ch = data;
  756         struct sb_info *sb = ch->parent;
  757 
  758         if ((sb->prio == 0) || (sb->prio == ch->dir))
  759                 return &sb16x_caps;
  760         else
  761                 return sb->prio16? &sb16_caps8 : &sb16_caps16;
  762 }
  763 
  764 static int
  765 sb16chan_resetdone(kobj_t obj, void *data)
  766 {
  767         struct sb_chinfo *ch = data;
  768         struct sb_info *sb = ch->parent;
  769 
  770         sb->prio = 0;
  771 
  772         return 0;
  773 }
  774 
  775 static kobj_method_t sb16chan_methods[] = {
  776         KOBJMETHOD(channel_init,                sb16chan_init),
  777         KOBJMETHOD(channel_resetdone,           sb16chan_resetdone),
  778         KOBJMETHOD(channel_setformat,           sb16chan_setformat),
  779         KOBJMETHOD(channel_setspeed,            sb16chan_setspeed),
  780         KOBJMETHOD(channel_setblocksize,        sb16chan_setblocksize),
  781         KOBJMETHOD(channel_trigger,             sb16chan_trigger),
  782         KOBJMETHOD(channel_getptr,              sb16chan_getptr),
  783         KOBJMETHOD(channel_getcaps,             sb16chan_getcaps),
  784         KOBJMETHOD_END
  785 };
  786 CHANNEL_DECLARE(sb16chan);
  787 
  788 /************************************************************/
  789 
  790 static int
  791 sb16_probe(device_t dev)
  792 {
  793         char buf[64];
  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         ver &= 0x0000ffff;
  804         if (f & BD_F_SB16) {
  805                 snprintf(buf, sizeof buf, "SB16 DSP %d.%02d%s", (int) ver >> 8, (int) ver & 0xff,
  806                          (f & BD_F_SB16X)? " (ViBRA16X)" : "");
  807                 device_set_desc_copy(dev, buf);
  808                 return 0;
  809         } else
  810                 return (ENXIO);
  811 }
  812 
  813 static int
  814 sb16_attach(device_t dev)
  815 {
  816         struct sb_info *sb;
  817         uintptr_t ver;
  818         char status[SND_STATUSLEN], status2[SND_STATUSLEN];
  819 
  820         sb = malloc(sizeof(*sb), M_DEVBUF, M_WAITOK | M_ZERO);
  821         sb->parent_dev = device_get_parent(dev);
  822         BUS_READ_IVAR(sb->parent_dev, dev, 1, &ver);
  823         sb->bd_id = ver & 0x0000ffff;
  824         sb->bd_flags = (ver & 0xffff0000) >> 16;
  825         sb->bufsize = pcm_getbuffersize(dev, 4096, SB16_BUFFSIZE, 65536);
  826 
  827         if (sb16_alloc_resources(sb, dev))
  828                 goto no;
  829         sb_lock(sb);
  830         if (sb_reset_dsp(sb)) {
  831                 sb_unlock(sb);
  832                 goto no;
  833         }
  834         sb_unlock(sb);
  835         if (mixer_init(dev, &sb16mix_mixer_class, sb))
  836                 goto no;
  837         if (snd_setup_intr(dev, sb->irq, 0, sb_intr, sb, &sb->ih))
  838                 goto no;
  839 
  840         if (sb->bd_flags & BD_F_SB16X)
  841                 pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
  842 
  843         sb->prio = 0;
  844 
  845         if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2,
  846                         /*boundary*/0,
  847                         /*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
  848                         /*highaddr*/BUS_SPACE_MAXADDR,
  849                         /*filter*/NULL, /*filterarg*/NULL,
  850                         /*maxsize*/sb->bufsize, /*nsegments*/1,
  851                         /*maxsegz*/0x3ffff, /*flags*/0,
  852                         /*lockfunc*/busdma_lock_mutex, /*lockarg*/&Giant,
  853                         &sb->parent_dmat) != 0) {
  854                 device_printf(dev, "unable to create dma tag\n");
  855                 goto no;
  856         }
  857 
  858         if (!(pcm_getflags(dev) & SD_F_SIMPLEX))
  859                 snprintf(status2, SND_STATUSLEN, ":%jd", rman_get_start(sb->drq2));
  860         else
  861                 status2[0] = '\0';
  862 
  863         snprintf(status, SND_STATUSLEN, "at io 0x%jx irq %jd drq %jd%s bufsz %u %s",
  864                 rman_get_start(sb->io_base), rman_get_start(sb->irq),
  865                 rman_get_start(sb->drq1), status2, sb->bufsize,
  866                 PCM_KLDSTRING(snd_sb16));
  867 
  868         if (pcm_register(dev, sb, 1, 1))
  869                 goto no;
  870         pcm_addchan(dev, PCMDIR_REC, &sb16chan_class, sb);
  871         pcm_addchan(dev, PCMDIR_PLAY, &sb16chan_class, sb);
  872 
  873         pcm_setstatus(dev, status);
  874 
  875         return 0;
  876 
  877 no:
  878         sb16_release_resources(sb, dev);
  879         return ENXIO;
  880 }
  881 
  882 static int
  883 sb16_detach(device_t dev)
  884 {
  885         int r;
  886         struct sb_info *sb;
  887 
  888         r = pcm_unregister(dev);
  889         if (r)
  890                 return r;
  891 
  892         sb = pcm_getdevinfo(dev);
  893         sb16_release_resources(sb, dev);
  894         return 0;
  895 }
  896 
  897 static device_method_t sb16_methods[] = {
  898         /* Device interface */
  899         DEVMETHOD(device_probe,         sb16_probe),
  900         DEVMETHOD(device_attach,        sb16_attach),
  901         DEVMETHOD(device_detach,        sb16_detach),
  902 
  903         { 0, 0 }
  904 };
  905 
  906 static driver_t sb16_driver = {
  907         "pcm",
  908         sb16_methods,
  909         PCM_SOFTC_SIZE,
  910 };
  911 
  912 DRIVER_MODULE(snd_sb16, sbc, sb16_driver, pcm_devclass, 0, 0);
  913 MODULE_DEPEND(snd_sb16, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
  914 MODULE_DEPEND(snd_sb16, snd_sbc, 1, 1, 1);
  915 MODULE_VERSION(snd_sb16, 1);

Cache object: 4a79724319877a6f45b436d18d00b42c


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