FreeBSD/Linux Kernel Cross Reference
sys/dev/sound/pci/es137x.c

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD AND BSD-4-Clause
      *
      * Copyright (c) 1999 Russell Cattelan <cattelan@thebarn.com>
      * Copyright (c) 1998 Joachim Kuebart <joachim.kuebart@gmx.net>
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     */
    
    /*-
     * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
     * All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     *
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     *
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in
     *    the documentation and/or other materials provided with the
     *    distribution.
     *
     * 3. All advertising materials mentioning features or use of this
     *    software must display the following acknowledgement:
     *      This product includes software developed by Joachim Kuebart.
     *
     * 4. The name of the author may not be used to endorse or promote
     *    products derived from this software without specific prior
     *    written permission.
     *
     * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
     * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
     * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
     * OF THE POSSIBILITY OF SUCH DAMAGE.
     */
    
    /*
     * Support the ENSONIQ AudioPCI board and Creative Labs SoundBlaster PCI
     * boards based on the ES1370, ES1371 and ES1373 chips.
     *
     * Part of this code was heavily inspired by the linux driver from
     * Thomas Sailer (sailer@ife.ee.ethz.ch)
     * Just about everything has been touched and reworked in some way but
     * the all the underlying sequences/timing/register values are from
     * Thomas' code.
    */
    
    #ifdef HAVE_KERNEL_OPTION_HEADERS
    #include "opt_snd.h"
    #endif
    
    #include <dev/sound/pcm/sound.h>
    #include <dev/sound/pcm/ac97.h>
    #include <dev/sound/pci/es137x.h>
    
    #include <dev/pci/pcireg.h>
    #include <dev/pci/pcivar.h>
    
    #include <sys/sysctl.h>
    
    #include "mixer_if.h"
    
    SND_DECLARE_FILE("$FreeBSD$");
    
    #define MEM_MAP_REG 0x14
    
    /* PCI IDs of supported chips */
    #define ES1370_PCI_ID 0x50001274
    #define ES1371_PCI_ID 0x13711274
   #define ES1371_PCI_ID2 0x13713274
   #define CT5880_PCI_ID 0x58801274
   #define CT4730_PCI_ID 0x89381102
   
   #define ES1371REV_ES1371_A  0x02
   #define ES1371REV_ES1371_B  0x09
   
   #define ES1371REV_ES1373_8  0x08
   #define ES1371REV_ES1373_A  0x04
   #define ES1371REV_ES1373_B  0x06
   
   #define ES1371REV_CT5880_A  0x07
   
   #define CT5880REV_CT5880_C  0x02
   #define CT5880REV_CT5880_D  0x03
   #define CT5880REV_CT5880_E  0x04
   
   #define CT4730REV_CT4730_A  0x00
   
   #define ES_DEFAULT_BUFSZ 4096
   
   /* 2 DAC for playback, 1 ADC for record */
   #define ES_DAC1         0
   #define ES_DAC2         1
   #define ES_ADC          2
   #define ES_NCHANS       3
   
   #define ES_DMA_SEGS_MIN 2
   #define ES_DMA_SEGS_MAX 256
   #define ES_BLK_MIN      64
   #define ES_BLK_ALIGN    (~(ES_BLK_MIN - 1))
   
   #define ES1370_DAC1_MINSPEED    5512
   #define ES1370_DAC1_MAXSPEED    44100
   
   /* device private data */
   struct es_info;
   
   struct es_chinfo {
           struct es_info *parent;
           struct pcm_channel *channel;
           struct snd_dbuf *buffer;
           struct pcmchan_caps caps;
           int dir, num, index;
           uint32_t fmt, blksz, blkcnt, bufsz;
           uint32_t ptr, prevptr;
           int active;
   };
   
   /*
    *     32bit Ensoniq Configuration (es->escfg).
    *     ----------------------------------------
    *
    *     +-------+--------+------+------+---------+--------+---------+---------+
    * len |  16   |    1   |  1   |  1   |    2    |   2    |    1    |    8    |
    *     +-------+--------+------+------+---------+--------+---------+---------+
    *     | fixed | single |      |      |         |        |   is    | general |
    *     | rate  |   pcm  | DACx | DACy | numplay | numrec | es1370? | purpose |
    *     |       |  mixer |      |      |         |        |         |         |
    *     +-------+--------+------+------+---------+--------+---------+---------+
    */
   #define ES_FIXED_RATE(cfgv)     \
                   (((cfgv) & 0xffff0000) >> 16)
   #define ES_SET_FIXED_RATE(cfgv, nv)     \
                   (((cfgv) & ~0xffff0000) | (((nv) & 0xffff) << 16))
   #define ES_SINGLE_PCM_MIX(cfgv) \
                   (((cfgv) & 0x8000) >> 15)
   #define ES_SET_SINGLE_PCM_MIX(cfgv, nv) \
                   (((cfgv) & ~0x8000) | (((nv) ? 1 : 0) << 15))
   #define ES_DAC_FIRST(cfgv)      \
                   (((cfgv) & 0x4000) >> 14)
   #define ES_SET_DAC_FIRST(cfgv, nv)      \
                   (((cfgv) & ~0x4000) | (((nv) & 0x1) << 14))
   #define ES_DAC_SECOND(cfgv)     \
                   (((cfgv) & 0x2000) >> 13)
   #define ES_SET_DAC_SECOND(cfgv, nv)     \
                   (((cfgv) & ~0x2000) | (((nv) & 0x1) << 13))
   #define ES_NUMPLAY(cfgv)        \
                   (((cfgv) & 0x1800) >> 11)
   #define ES_SET_NUMPLAY(cfgv, nv)        \
                   (((cfgv) & ~0x1800) | (((nv) & 0x3) << 11))
   #define ES_NUMREC(cfgv) \
                   (((cfgv) & 0x600) >> 9)
   #define ES_SET_NUMREC(cfgv, nv) \
                   (((cfgv) & ~0x600) | (((nv) & 0x3) << 9))
   #define ES_IS_ES1370(cfgv)      \
                   (((cfgv) & 0x100) >> 8)
   #define ES_SET_IS_ES1370(cfgv, nv)      \
                   (((cfgv) & ~0x100) | (((nv) ? 1 : 0) << 8))
   #define ES_GP(cfgv)     \
                   ((cfgv) & 0xff)
   #define ES_SET_GP(cfgv, nv)     \
                   (((cfgv) & ~0xff) | ((nv) & 0xff))
   
   #define ES_DAC1_ENABLED(cfgv)   \
                   (ES_NUMPLAY(cfgv) > 1 || \
                   (ES_NUMPLAY(cfgv) == 1 && ES_DAC_FIRST(cfgv) == ES_DAC1))
   #define ES_DAC2_ENABLED(cfgv)   \
                   (ES_NUMPLAY(cfgv) > 1 || \
                   (ES_NUMPLAY(cfgv) == 1 && ES_DAC_FIRST(cfgv) == ES_DAC2))
   
   /*
    * DAC 1/2 configuration through kernel hint - hint.pcm.<unit>.dac="val"
    *
    * 0 = Enable both DACs - Default
    * 1 = Enable single DAC (DAC1)
    * 2 = Enable single DAC (DAC2)
    * 3 = Enable both DACs, swap position (DAC2 comes first instead of DAC1)
    */
   #define ES_DEFAULT_DAC_CFG      0
   
   struct es_info {
           bus_space_tag_t st;
           bus_space_handle_t sh;
           bus_dma_tag_t   parent_dmat;
   
           struct resource *reg, *irq;
           int regtype, regid, irqid;
           void *ih;
   
           device_t dev;
           int num;
           unsigned int bufsz, blkcnt;
   
           /* Contents of board's registers */
           uint32_t        ctrl;
           uint32_t        sctrl;
           uint32_t        escfg;
           struct es_chinfo ch[ES_NCHANS];
           struct mtx      *lock;
           struct callout  poll_timer;
           int poll_ticks, polling;
   };
   
   #define ES_LOCK(sc)             snd_mtxlock((sc)->lock)
   #define ES_UNLOCK(sc)           snd_mtxunlock((sc)->lock)
   #define ES_LOCK_ASSERT(sc)      snd_mtxassert((sc)->lock)
   
   /* prototypes */
   static void     es_intr(void *);
   static uint32_t es1371_wait_src_ready(struct es_info *);
   static void     es1371_src_write(struct es_info *,
                                           unsigned short, unsigned short);
   static unsigned int     es1371_adc_rate(struct es_info *, unsigned int, int);
   static unsigned int     es1371_dac_rate(struct es_info *, unsigned int, int);
   static int      es1371_init(struct es_info *);
   static int      es1370_init(struct es_info *);
   static int      es1370_wrcodec(struct es_info *, unsigned char, unsigned char);
   
   static uint32_t es_fmt[] = {
           SND_FORMAT(AFMT_U8, 1, 0),
           SND_FORMAT(AFMT_U8, 2, 0),
           SND_FORMAT(AFMT_S16_LE, 1, 0),
           SND_FORMAT(AFMT_S16_LE, 2, 0),
           0
   };
   static struct pcmchan_caps es_caps = {4000, 48000, es_fmt, 0};
   
   static const struct {
           unsigned        volidx:4;
           unsigned        left:4;
           unsigned        right:4;
           unsigned        stereo:1;
           unsigned        recmask:13;
           unsigned        avail:1;
   }       mixtable[SOUND_MIXER_NRDEVICES] = {
           [SOUND_MIXER_VOLUME]    = { 0, 0x0, 0x1, 1, 0x1f7f, 1 },
           [SOUND_MIXER_PCM]       = { 1, 0x2, 0x3, 1, 0x0400, 1 },
           [SOUND_MIXER_SYNTH]     = { 2, 0x4, 0x5, 1, 0x0060, 1 },
           [SOUND_MIXER_CD]        = { 3, 0x6, 0x7, 1, 0x0006, 1 },
           [SOUND_MIXER_LINE]      = { 4, 0x8, 0x9, 1, 0x0018, 1 },
           [SOUND_MIXER_LINE1]     = { 5, 0xa, 0xb, 1, 0x1800, 1 },
           [SOUND_MIXER_LINE2]     = { 6, 0xc, 0x0, 0, 0x0100, 1 },
           [SOUND_MIXER_LINE3]     = { 7, 0xd, 0x0, 0, 0x0200, 1 },
           [SOUND_MIXER_MIC]       = { 8, 0xe, 0x0, 0, 0x0001, 1 },
           [SOUND_MIXER_OGAIN]     = { 9, 0xf, 0x0, 0, 0x0000, 1 }
   };
   
   static __inline uint32_t
   es_rd(struct es_info *es, int regno, int size)
   {
           switch (size) {
           case 1:
                   return (bus_space_read_1(es->st, es->sh, regno));
           case 2:
                   return (bus_space_read_2(es->st, es->sh, regno));
           case 4:
                   return (bus_space_read_4(es->st, es->sh, regno));
           default:
                   return (0xFFFFFFFF);
           }
   }
   
   static __inline void
   es_wr(struct es_info *es, int regno, uint32_t data, int size)
   {
   
           switch (size) {
           case 1:
                   bus_space_write_1(es->st, es->sh, regno, data);
                   break;
           case 2:
                   bus_space_write_2(es->st, es->sh, regno, data);
                   break;
           case 4:
                   bus_space_write_4(es->st, es->sh, regno, data);
                   break;
           }
   }
   
   /* -------------------------------------------------------------------- */
   /* The es1370 mixer interface */
   
   static int
   es1370_mixinit(struct snd_mixer *m)
   {
           struct es_info *es;
           int i;
           uint32_t v;
   
           es = mix_getdevinfo(m);
           v = 0;
           for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
                   if (mixtable[i].avail)
                           v |= (1 << i);
           }
           /*
            * Each DAC1/2 for ES1370 can be controlled independently
            *   DAC1 = controlled by synth
            *   DAC2 = controlled by pcm
            * This is indeed can confuse user if DAC1 become primary playback
            * channel. Try to be smart and combine both if necessary.
            */
           if (ES_SINGLE_PCM_MIX(es->escfg))
                   v &= ~(1 << SOUND_MIXER_SYNTH);
           mix_setdevs(m, v);
           v = 0;
           for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
                   if (mixtable[i].recmask)
                           v |= (1 << i);
           }
           if (ES_SINGLE_PCM_MIX(es->escfg)) /* ditto */
                   v &= ~(1 << SOUND_MIXER_SYNTH);
           mix_setrecdevs(m, v);
           return (0);
   }
   
   static int
   es1370_mixset(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
   {
           struct es_info *es;
           int l, r, rl, rr, set_dac1;
   
           if (!mixtable[dev].avail)
                   return (-1);
           l = left;
           r = (mixtable[dev].stereo) ? right : l;
           if (mixtable[dev].left == 0xf)
                   rl = (l < 2) ? 0x80 : 7 - (l - 2) / 14;
           else
                   rl = (l < 7) ? 0x80 : 31 - (l - 7) / 3;
           es = mix_getdevinfo(m);
           ES_LOCK(es);
           if (dev == SOUND_MIXER_PCM && (ES_SINGLE_PCM_MIX(es->escfg)) &&
               ES_DAC1_ENABLED(es->escfg))
                   set_dac1 = 1;
           else
                   set_dac1 = 0;
           if (mixtable[dev].stereo) {
                   rr = (r < 7) ? 0x80 : 31 - (r - 7) / 3;
                   es1370_wrcodec(es, mixtable[dev].right, rr);
                   if (set_dac1 && mixtable[SOUND_MIXER_SYNTH].stereo)
                           es1370_wrcodec(es,
                               mixtable[SOUND_MIXER_SYNTH].right, rr);
           }
           es1370_wrcodec(es, mixtable[dev].left, rl);
           if (set_dac1)
                   es1370_wrcodec(es, mixtable[SOUND_MIXER_SYNTH].left, rl);
           ES_UNLOCK(es);
   
           return (l | (r << 8));
   }
   
   static uint32_t
   es1370_mixsetrecsrc(struct snd_mixer *m, uint32_t src)
   {
           struct es_info *es;
           int i, j = 0;
   
           es = mix_getdevinfo(m);
           if (src == 0) src = 1 << SOUND_MIXER_MIC;
           src &= mix_getrecdevs(m);
           for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
                   if ((src & (1 << i)) != 0) j |= mixtable[i].recmask;
   
           ES_LOCK(es);
           if ((src & (1 << SOUND_MIXER_PCM)) && ES_SINGLE_PCM_MIX(es->escfg) &&
               ES_DAC1_ENABLED(es->escfg))
                   j |= mixtable[SOUND_MIXER_SYNTH].recmask;
           es1370_wrcodec(es, CODEC_LIMIX1, j & 0x55);
           es1370_wrcodec(es, CODEC_RIMIX1, j & 0xaa);
           es1370_wrcodec(es, CODEC_LIMIX2, (j >> 8) & 0x17);
           es1370_wrcodec(es, CODEC_RIMIX2, (j >> 8) & 0x0f);
           es1370_wrcodec(es, CODEC_OMIX1, 0x7f);
           es1370_wrcodec(es, CODEC_OMIX2, 0x3f);
           ES_UNLOCK(es);
   
           return (src);
   }
   
   static kobj_method_t es1370_mixer_methods[] = {
           KOBJMETHOD(mixer_init,          es1370_mixinit),
           KOBJMETHOD(mixer_set,           es1370_mixset),
           KOBJMETHOD(mixer_setrecsrc,     es1370_mixsetrecsrc),
           KOBJMETHOD_END
   };
   MIXER_DECLARE(es1370_mixer);
   
   /* -------------------------------------------------------------------- */
   
   static int
   es1370_wrcodec(struct es_info *es, unsigned char i, unsigned char data)
   {
           unsigned int t;
   
           ES_LOCK_ASSERT(es);
   
           for (t = 0; t < 0x1000; t++) {
                   if ((es_rd(es, ES1370_REG_STATUS, 4) &
                       STAT_CSTAT) == 0) {
                           es_wr(es, ES1370_REG_CODEC,
                               ((unsigned short)i << CODEC_INDEX_SHIFT) | data, 2);
                           return (0);
                   }
                   DELAY(1);
           }
           device_printf(es->dev, "%s: timed out\n", __func__);
           return (-1);
   }
   
   /* -------------------------------------------------------------------- */
   
   /* channel interface */
   static void *
   eschan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b,
                                   struct pcm_channel *c, int dir)
   {
           struct es_info *es = devinfo;
           struct es_chinfo *ch;
           uint32_t index;
   
           ES_LOCK(es);
   
           if (dir == PCMDIR_PLAY) {
                   index = ES_GP(es->escfg);
                   es->escfg = ES_SET_GP(es->escfg, index + 1);
                   if (index == 0)
                           index = ES_DAC_FIRST(es->escfg);
                   else if (index == 1)
                           index = ES_DAC_SECOND(es->escfg);
                   else {
                           device_printf(es->dev,
                               "Invalid ES_GP index: %d\n", index);
                           ES_UNLOCK(es);
                           return (NULL);
                   }
                   if (!(index == ES_DAC1 || index == ES_DAC2)) {
                           device_printf(es->dev, "Unknown DAC: %d\n", index + 1);
                           ES_UNLOCK(es);
                           return (NULL);
                   }
                   if (es->ch[index].channel != NULL) {
                           device_printf(es->dev, "DAC%d already initialized!\n",
                               index + 1);
                           ES_UNLOCK(es);
                           return (NULL);
                   }
           } else
                   index = ES_ADC;
   
           ch = &es->ch[index];
           ch->index = index;
           ch->num = es->num++;
           ch->caps = es_caps;
           if (ES_IS_ES1370(es->escfg)) {
                   if (ch->index == ES_DAC1) {
                           ch->caps.maxspeed = ES1370_DAC1_MAXSPEED;
                           ch->caps.minspeed = ES1370_DAC1_MINSPEED;
                   } else {
                           uint32_t fixed_rate = ES_FIXED_RATE(es->escfg);
                           if (!(fixed_rate < es_caps.minspeed ||
                               fixed_rate > es_caps.maxspeed)) {
                                   ch->caps.maxspeed = fixed_rate;
                                   ch->caps.minspeed = fixed_rate;
                           }
                   }
           }
           ch->parent = es;
           ch->channel = c;
           ch->buffer = b;
           ch->bufsz = es->bufsz;
           ch->blkcnt = es->blkcnt;
           ch->blksz = ch->bufsz / ch->blkcnt;
           ch->dir = dir;
           ES_UNLOCK(es);
           if (sndbuf_alloc(ch->buffer, es->parent_dmat, 0, ch->bufsz) != 0)
                   return (NULL);
           ES_LOCK(es);
           if (dir == PCMDIR_PLAY) {
                   if (ch->index == ES_DAC1) {
                           es_wr(es, ES1370_REG_MEMPAGE,
                               ES1370_REG_DAC1_FRAMEADR >> 8, 1);
                           es_wr(es, ES1370_REG_DAC1_FRAMEADR & 0xff,
                               sndbuf_getbufaddr(ch->buffer), 4);
                           es_wr(es, ES1370_REG_DAC1_FRAMECNT & 0xff,
                               (ch->bufsz >> 2) - 1, 4);
                   } else {
                           es_wr(es, ES1370_REG_MEMPAGE,
                               ES1370_REG_DAC2_FRAMEADR >> 8, 1);
                           es_wr(es, ES1370_REG_DAC2_FRAMEADR & 0xff,
                               sndbuf_getbufaddr(ch->buffer), 4);
                           es_wr(es, ES1370_REG_DAC2_FRAMECNT & 0xff,
                               (ch->bufsz >> 2) - 1, 4);
                   }
           } else {
                   es_wr(es, ES1370_REG_MEMPAGE, ES1370_REG_ADC_FRAMEADR >> 8, 1);
                   es_wr(es, ES1370_REG_ADC_FRAMEADR & 0xff,
                       sndbuf_getbufaddr(ch->buffer), 4);
                   es_wr(es, ES1370_REG_ADC_FRAMECNT & 0xff,
                       (ch->bufsz >> 2) - 1, 4);
           }
           ES_UNLOCK(es);
           return (ch);
   }
   
   static int
   eschan_setformat(kobj_t obj, void *data, uint32_t format)
   {
           struct es_chinfo *ch = data;
           struct es_info *es = ch->parent;
   
           ES_LOCK(es);
           if (ch->dir == PCMDIR_PLAY) {
                   if (ch->index == ES_DAC1) {
                           es->sctrl &= ~SCTRL_P1FMT;
                           if (format & AFMT_S16_LE)
                                   es->sctrl |= SCTRL_P1SEB;
                           if (AFMT_CHANNEL(format) > 1)
                                   es->sctrl |= SCTRL_P1SMB;
                   } else {
                           es->sctrl &= ~SCTRL_P2FMT;
                           if (format & AFMT_S16_LE)
                                   es->sctrl |= SCTRL_P2SEB;
                           if (AFMT_CHANNEL(format) > 1)
                                   es->sctrl |= SCTRL_P2SMB;
                   }
           } else {
                   es->sctrl &= ~SCTRL_R1FMT;
                   if (format & AFMT_S16_LE)
                           es->sctrl |= SCTRL_R1SEB;
                   if (AFMT_CHANNEL(format) > 1)
                           es->sctrl |= SCTRL_R1SMB;
           }
           es_wr(es, ES1370_REG_SERIAL_CONTROL, es->sctrl, 4);
           ES_UNLOCK(es);
           ch->fmt = format;
           return (0);
   }
   
   static uint32_t
   eschan1370_setspeed(kobj_t obj, void *data, uint32_t speed)
   {
           struct es_chinfo *ch = data;
           struct es_info *es = ch->parent;
   
           ES_LOCK(es);
           /* Fixed rate , do nothing. */
           if (ch->caps.minspeed == ch->caps.maxspeed) {
                   ES_UNLOCK(es);
                   return (ch->caps.maxspeed);
           }
           if (speed < ch->caps.minspeed)
                   speed = ch->caps.minspeed;
           if (speed > ch->caps.maxspeed)
                   speed = ch->caps.maxspeed;
           if (ch->index == ES_DAC1) {
                   /*
                    * DAC1 does not support continuous rate settings.
                    * Pick the nearest and use it since FEEDER_RATE will
                    * do the proper conversion for us.
                    */
                   es->ctrl &= ~CTRL_WTSRSEL;
                   if (speed < 8268) {
                           speed = 5512;
                           es->ctrl |= 0 << CTRL_SH_WTSRSEL;
                   } else if (speed < 16537) {
                           speed = 11025;
                           es->ctrl |= 1 << CTRL_SH_WTSRSEL;
                   } else if (speed < 33075) {
                           speed = 22050;
                           es->ctrl |= 2 << CTRL_SH_WTSRSEL;
                   } else {
                           speed = 44100;
                           es->ctrl |= 3 << CTRL_SH_WTSRSEL;
                   }
           } else {
                   es->ctrl &= ~CTRL_PCLKDIV;
                   es->ctrl |= DAC2_SRTODIV(speed) << CTRL_SH_PCLKDIV;
           }
           es_wr(es, ES1370_REG_CONTROL, es->ctrl, 4);
           ES_UNLOCK(es);
           return (speed);
   }
   
   static uint32_t
   eschan1371_setspeed(kobj_t obj, void *data, uint32_t speed)
   {
           struct es_chinfo *ch = data;
           struct es_info *es = ch->parent;
           uint32_t i;
           int delta;
   
           ES_LOCK(es);
           if (ch->dir == PCMDIR_PLAY)
                   i = es1371_dac_rate(es, speed, ch->index); /* play */
           else
                   i = es1371_adc_rate(es, speed, ch->index); /* record */
           ES_UNLOCK(es);
           delta = (speed > i) ? (speed - i) : (i - speed);
           if (delta < 2)
                   return (speed);
           return (i);
   }
   
   static int
   eschan_setfragments(kobj_t obj, void *data, uint32_t blksz, uint32_t blkcnt)
   {
           struct es_chinfo *ch = data;
           struct es_info *es = ch->parent;
   
           blksz &= ES_BLK_ALIGN;
   
           if (blksz > (sndbuf_getmaxsize(ch->buffer) / ES_DMA_SEGS_MIN))
                   blksz = sndbuf_getmaxsize(ch->buffer) / ES_DMA_SEGS_MIN;
           if (blksz < ES_BLK_MIN)
                   blksz = ES_BLK_MIN;
           if (blkcnt > ES_DMA_SEGS_MAX)
                   blkcnt = ES_DMA_SEGS_MAX;
           if (blkcnt < ES_DMA_SEGS_MIN)
                   blkcnt = ES_DMA_SEGS_MIN;
   
           while ((blksz * blkcnt) > sndbuf_getmaxsize(ch->buffer)) {
                   if ((blkcnt >> 1) >= ES_DMA_SEGS_MIN)
                           blkcnt >>= 1;
                   else if ((blksz >> 1) >= ES_BLK_MIN)
                           blksz >>= 1;
                   else
                           break;
           }
   
           if ((sndbuf_getblksz(ch->buffer) != blksz ||
               sndbuf_getblkcnt(ch->buffer) != blkcnt) &&
               sndbuf_resize(ch->buffer, blkcnt, blksz) != 0)
                   device_printf(es->dev, "%s: failed blksz=%u blkcnt=%u\n",
                       __func__, blksz, blkcnt);
   
           ch->bufsz = sndbuf_getsize(ch->buffer);
           ch->blksz = sndbuf_getblksz(ch->buffer);
           ch->blkcnt = sndbuf_getblkcnt(ch->buffer);
   
           return (0);
   }
   
   static uint32_t
   eschan_setblocksize(kobj_t obj, void *data, uint32_t blksz)
   {
           struct es_chinfo *ch = data;
           struct es_info *es = ch->parent;
   
           eschan_setfragments(obj, data, blksz, es->blkcnt);
   
           return (ch->blksz);
   }
   
   #define es_chan_active(es)      ((es)->ch[ES_DAC1].active + \
                                   (es)->ch[ES_DAC2].active + \
                                   (es)->ch[ES_ADC].active)
   
   static __inline int
   es_poll_channel(struct es_chinfo *ch)
   {
           struct es_info *es;
           uint32_t sz, delta;
           uint32_t reg, ptr;
   
           if (ch == NULL || ch->channel == NULL || ch->active == 0)
                   return (0);
   
           es = ch->parent;
           if (ch->dir == PCMDIR_PLAY) {
                   if (ch->index == ES_DAC1)
                           reg = ES1370_REG_DAC1_FRAMECNT;
                   else
                           reg = ES1370_REG_DAC2_FRAMECNT;
           } else
                   reg = ES1370_REG_ADC_FRAMECNT;
           sz = ch->blksz * ch->blkcnt;
           es_wr(es, ES1370_REG_MEMPAGE, reg >> 8, 4);
           ptr = es_rd(es, reg & 0x000000ff, 4) >> 16;
           ptr <<= 2;
           ch->ptr = ptr;
           ptr %= sz;
           ptr &= ~(ch->blksz - 1);
           delta = (sz + ptr - ch->prevptr) % sz;
   
           if (delta < ch->blksz)
                   return (0);
   
           ch->prevptr = ptr;
   
           return (1);
   }
   
   static void
   es_poll_callback(void *arg)
   {
           struct es_info *es = arg;
           uint32_t trigger = 0;
           int i;
   
           if (es == NULL)
                   return;
   
           ES_LOCK(es);
           if (es->polling == 0 || es_chan_active(es) == 0) {
                   ES_UNLOCK(es);
                   return;
           }
   
           for (i = 0; i < ES_NCHANS; i++) {
                   if (es_poll_channel(&es->ch[i]) != 0)
                           trigger |= 1 << i;
           }
   
           /* XXX */
           callout_reset(&es->poll_timer, 1/*es->poll_ticks*/,
               es_poll_callback, es);
   
           ES_UNLOCK(es);
   
           for (i = 0; i < ES_NCHANS; i++) {
                   if (trigger & (1 << i))
                           chn_intr(es->ch[i].channel);
           }
   }
   
   static int
   eschan_trigger(kobj_t obj, void *data, int go)
   {
           struct es_chinfo *ch = data;
           struct es_info *es = ch->parent;
           uint32_t cnt, b = 0;
   
           if (!PCMTRIG_COMMON(go))
                   return 0;
   
           ES_LOCK(es);
           cnt = (ch->blksz / sndbuf_getalign(ch->buffer)) - 1;
           if (ch->fmt & AFMT_16BIT)
                   b |= 0x02;
           if (AFMT_CHANNEL(ch->fmt) > 1)
                   b |= 0x01;
           if (ch->dir == PCMDIR_PLAY) {
                   if (go == PCMTRIG_START) {
                           if (ch->index == ES_DAC1) {
                                   es->ctrl |= CTRL_DAC1_EN;
                                   es->sctrl &= ~(SCTRL_P1LOOPSEL |
                                       SCTRL_P1PAUSE | SCTRL_P1SCTRLD);
                                   if (es->polling == 0)
                                           es->sctrl |= SCTRL_P1INTEN;
                                   else
                                           es->sctrl &= ~SCTRL_P1INTEN;
                                   es->sctrl |= b;
                                   es_wr(es, ES1370_REG_DAC1_SCOUNT, cnt, 4);
                                   /* start at beginning of buffer */
                                   es_wr(es, ES1370_REG_MEMPAGE,
                                       ES1370_REG_DAC1_FRAMECNT >> 8, 4);
                                   es_wr(es, ES1370_REG_DAC1_FRAMECNT & 0xff,
                                       (ch->bufsz >> 2) - 1, 4);
                           } else {
                                   es->ctrl |= CTRL_DAC2_EN;
                                   es->sctrl &= ~(SCTRL_P2ENDINC | SCTRL_P2STINC |
                                       SCTRL_P2LOOPSEL | SCTRL_P2PAUSE |
                                       SCTRL_P2DACSEN);
                                   if (es->polling == 0)
                                           es->sctrl |= SCTRL_P2INTEN;
                                   else
                                           es->sctrl &= ~SCTRL_P2INTEN;
                                   es->sctrl |= (b << 2) |
                                       ((((b >> 1) & 1) + 1) << SCTRL_SH_P2ENDINC);
                                   es_wr(es, ES1370_REG_DAC2_SCOUNT, cnt, 4);
                                   /* start at beginning of buffer */
                                   es_wr(es, ES1370_REG_MEMPAGE,
                                       ES1370_REG_DAC2_FRAMECNT >> 8, 4);
                                   es_wr(es, ES1370_REG_DAC2_FRAMECNT & 0xff,
                                       (ch->bufsz >> 2) - 1, 4);
                           }
                   } else
                           es->ctrl &= ~((ch->index == ES_DAC1) ?
                               CTRL_DAC1_EN : CTRL_DAC2_EN);
           } else {
                   if (go == PCMTRIG_START) {
                           es->ctrl |= CTRL_ADC_EN;
                           es->sctrl &= ~SCTRL_R1LOOPSEL;
                           if (es->polling == 0)
                                   es->sctrl |= SCTRL_R1INTEN;
                           else
                                   es->sctrl &= ~SCTRL_R1INTEN;
                           es->sctrl |= b << 4;
                           es_wr(es, ES1370_REG_ADC_SCOUNT, cnt, 4);
                           /* start at beginning of buffer */
                           es_wr(es, ES1370_REG_MEMPAGE,
                               ES1370_REG_ADC_FRAMECNT >> 8, 4);
                           es_wr(es, ES1370_REG_ADC_FRAMECNT & 0xff,
                               (ch->bufsz >> 2) - 1, 4);
                   } else
                           es->ctrl &= ~CTRL_ADC_EN;
           }
           es_wr(es, ES1370_REG_SERIAL_CONTROL, es->sctrl, 4);
           es_wr(es, ES1370_REG_CONTROL, es->ctrl, 4);
           if (go == PCMTRIG_START) {
                   if (es->polling != 0) {
                           ch->ptr = 0;
                           ch->prevptr = 0;
                           if (es_chan_active(es) == 0) {
                                   es->poll_ticks = 1;
                                   callout_reset(&es->poll_timer, 1,
                                       es_poll_callback, es);
                           }
                   }
                   ch->active = 1;
           } else {
                   ch->active = 0;
                   if (es->polling != 0) {
                           if (es_chan_active(es) == 0) {
                                   callout_stop(&es->poll_timer);
                                   es->poll_ticks = 1;
                           }
                   }
           }
           ES_UNLOCK(es);
           return (0);
   }
   
   static uint32_t
   eschan_getptr(kobj_t obj, void *data)
   {
           struct es_chinfo *ch = data;
           struct es_info *es = ch->parent;
           uint32_t reg, cnt;
   
           ES_LOCK(es);
           if (es->polling != 0)
                   cnt = ch->ptr;
           else {
                   if (ch->dir == PCMDIR_PLAY) {
                           if (ch->index == ES_DAC1)
                                   reg = ES1370_REG_DAC1_FRAMECNT;
                           else
                                   reg = ES1370_REG_DAC2_FRAMECNT;
                   } else
                           reg = ES1370_REG_ADC_FRAMECNT;
                   es_wr(es, ES1370_REG_MEMPAGE, reg >> 8, 4);
                   cnt = es_rd(es, reg & 0x000000ff, 4) >> 16;
                   /* cnt is longwords */
                   cnt <<= 2;
           }
           ES_UNLOCK(es);
   
           cnt &= ES_BLK_ALIGN;
   
           return (cnt);
   }
   
   static struct pcmchan_caps *
   eschan_getcaps(kobj_t obj, void *data)
   {
           struct es_chinfo *ch = data;
   
           return (&ch->caps);
   }
   
   static kobj_method_t eschan1370_methods[] = {
           KOBJMETHOD(channel_init,                eschan_init),
           KOBJMETHOD(channel_setformat,           eschan_setformat),
           KOBJMETHOD(channel_setspeed,            eschan1370_setspeed),
           KOBJMETHOD(channel_setblocksize,        eschan_setblocksize),
           KOBJMETHOD(channel_setfragments,        eschan_setfragments),
           KOBJMETHOD(channel_trigger,             eschan_trigger),
           KOBJMETHOD(channel_getptr,              eschan_getptr),
           KOBJMETHOD(channel_getcaps,             eschan_getcaps),
           KOBJMETHOD_END
   };
   CHANNEL_DECLARE(eschan1370);
   
   static kobj_method_t eschan1371_methods[] = {
           KOBJMETHOD(channel_init,                eschan_init),
           KOBJMETHOD(channel_setformat,           eschan_setformat),
           KOBJMETHOD(channel_setspeed,            eschan1371_setspeed),
           KOBJMETHOD(channel_setblocksize,        eschan_setblocksize),
           KOBJMETHOD(channel_setfragments,        eschan_setfragments),
           KOBJMETHOD(channel_trigger,             eschan_trigger),
           KOBJMETHOD(channel_getptr,              eschan_getptr),
           KOBJMETHOD(channel_getcaps,             eschan_getcaps),
           KOBJMETHOD_END
   };
   CHANNEL_DECLARE(eschan1371);
   
   /* -------------------------------------------------------------------- */
   /* The interrupt handler */
   static void
   es_intr(void *p)
   {
           struct es_info *es = p;
           uint32_t intsrc, sctrl;
   
           ES_LOCK(es);
           if (es->polling != 0) {
                   ES_UNLOCK(es);
                   return;
           }
           intsrc = es_rd(es, ES1370_REG_STATUS, 4);
           if ((intsrc & STAT_INTR) == 0) {
                   ES_UNLOCK(es);
                   return;
           }
   
           sctrl = es->sctrl;
           if (intsrc & STAT_ADC)
                   sctrl &= ~SCTRL_R1INTEN;
           if (intsrc & STAT_DAC1)
                   sctrl &= ~SCTRL_P1INTEN;
           if (intsrc & STAT_DAC2)
                   sctrl &= ~SCTRL_P2INTEN;
   
           es_wr(es, ES1370_REG_SERIAL_CONTROL, sctrl, 4);
           es_wr(es, ES1370_REG_SERIAL_CONTROL, es->sctrl, 4);
           ES_UNLOCK(es);
   
           if (intsrc & STAT_ADC)
                   chn_intr(es->ch[ES_ADC].channel);
           if (intsrc & STAT_DAC1)
                   chn_intr(es->ch[ES_DAC1].channel);
           if (intsrc & STAT_DAC2)
                   chn_intr(es->ch[ES_DAC2].channel);
   }
   
   /* ES1370 specific */
   static int
   es1370_init(struct es_info *es)
   {
           uint32_t fixed_rate;
           int r, single_pcm;
   
           /* ES1370 default to fixed rate operation */
           if (resource_int_value(device_get_name(es->dev),
               device_get_unit(es->dev), "fixed_rate", &r) == 0) {
                   fixed_rate = r;
                   if (fixed_rate) {
                           if (fixed_rate < es_caps.minspeed)
                                   fixed_rate = es_caps.minspeed;
                           if (fixed_rate > es_caps.maxspeed)
                                   fixed_rate = es_caps.maxspeed;
                   }
           } else
                   fixed_rate = es_caps.maxspeed;
   
           if (resource_int_value(device_get_name(es->dev),
               device_get_unit(es->dev), "single_pcm_mixer", &r) == 0)
                   single_pcm = (r != 0) ? 1 : 0;
           else
                   single_pcm = 1;
   
           ES_LOCK(es);
           if (ES_NUMPLAY(es->escfg) == 1)
                   single_pcm = 1;
           /* This is ES1370 */
           es->escfg = ES_SET_IS_ES1370(es->escfg, 1);
           if (fixed_rate)
                   es->escfg = ES_SET_FIXED_RATE(es->escfg, fixed_rate);
           else {
                   es->escfg = ES_SET_FIXED_RATE(es->escfg, 0);
                   fixed_rate = DSP_DEFAULT_SPEED;
           }
           if (single_pcm)
                   es->escfg = ES_SET_SINGLE_PCM_MIX(es->escfg, 1);
           else
                   es->escfg = ES_SET_SINGLE_PCM_MIX(es->escfg, 0);
           es->ctrl = CTRL_CDC_EN | CTRL_JYSTK_EN | CTRL_SERR_DIS |
               (DAC2_SRTODIV(fixed_rate) << CTRL_SH_PCLKDIV);
          es->ctrl |= 3 << CTRL_SH_WTSRSEL;
          es_wr(es, ES1370_REG_CONTROL, es->ctrl, 4);
  
          es->sctrl = 0;
          es_wr(es, ES1370_REG_SERIAL_CONTROL, es->sctrl, 4);
  
          /* No RST, PD */
          es1370_wrcodec(es, CODEC_RES_PD, 3);
          /*
           * CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off the LRCLK2 PLL;
           * program DAC_SYNC=0!
           */
          es1370_wrcodec(es, CODEC_CSEL, 0);
          /* Recording source is mixer */
          es1370_wrcodec(es, CODEC_ADSEL, 0);
          /* MIC amp is 0db */
          es1370_wrcodec(es, CODEC_MGAIN, 0);
          ES_UNLOCK(es);
  
          return (0);
  }
  
  /* ES1371 specific */
  int
  es1371_init(struct es_info *es)
  {
          uint32_t cssr, devid, revid, subdev;
          int idx;
  
          ES_LOCK(es);
          /* This is NOT ES1370 */
          es->escfg = ES_SET_IS_ES1370(es->escfg, 0);
          es->num = 0;
          es->sctrl = 0;
          cssr = 0;
          devid = pci_get_devid(es->dev);
          revid = pci_get_revid(es->dev);
          subdev = (pci_get_subdevice(es->dev) << 16) |
              pci_get_subvendor(es->dev);
          /*
           * Joyport blacklist. Either we're facing with broken hardware
           * or because this hardware need special (unknown) initialization
           * procedures.
           */
          switch (subdev) {
          case 0x20001274:        /* old Ensoniq */
                  es->ctrl = 0;
                  break;
          default:
                  es->ctrl = CTRL_JYSTK_EN;
                  break;
          }
          if (devid == CT4730_PCI_ID) {
                  /* XXX amplifier hack? */
                  es->ctrl |= (1 << 16);
          }
          /* initialize the chips */
          es_wr(es, ES1370_REG_CONTROL, es->ctrl, 4);
          es_wr(es, ES1370_REG_SERIAL_CONTROL, es->sctrl, 4);
          es_wr(es, ES1371_REG_LEGACY, 0, 4);
          if ((devid == ES1371_PCI_ID && revid == ES1371REV_ES1373_8) ||
              (devid == ES1371_PCI_ID && revid == ES1371REV_CT5880_A) ||
              (devid == CT5880_PCI_ID && revid == CT5880REV_CT5880_C) ||
              (devid == CT5880_PCI_ID && revid == CT5880REV_CT5880_D) ||
              (devid == CT5880_PCI_ID && revid == CT5880REV_CT5880_E)) {
                  cssr = 1 << 29;
                  es_wr(es, ES1370_REG_STATUS, cssr, 4);
                  DELAY(20000);
          }
          /* AC'97 warm reset to start the bitclk */
          es_wr(es, ES1370_REG_CONTROL, es->ctrl, 4);
          es_wr(es, ES1371_REG_LEGACY, ES1371_SYNC_RES, 4);
          DELAY(2000);
          es_wr(es, ES1370_REG_CONTROL, es->sctrl, 4);
          es1371_wait_src_ready(es);
          /* Init the sample rate converter */
          es_wr(es, ES1371_REG_SMPRATE, ES1371_DIS_SRC, 4);
          for (idx = 0; idx < 0x80; idx++)
                  es1371_src_write(es, idx, 0);
          es1371_src_write(es, ES_SMPREG_DAC1 + ES_SMPREG_TRUNC_N, 16 << 4);
          es1371_src_write(es, ES_SMPREG_DAC1 + ES_SMPREG_INT_REGS, 16 << 10);
          es1371_src_write(es, ES_SMPREG_DAC2 + ES_SMPREG_TRUNC_N, 16 << 4);
          es1371_src_write(es, ES_SMPREG_DAC2 + ES_SMPREG_INT_REGS, 16 << 10);
          es1371_src_write(es, ES_SMPREG_VOL_ADC, 1 << 12);
          es1371_src_write(es, ES_SMPREG_VOL_ADC + 1, 1 << 12);
          es1371_src_write(es, ES_SMPREG_VOL_DAC1, 1 << 12);
          es1371_src_write(es, ES_SMPREG_VOL_DAC1 + 1, 1 << 12);
          es1371_src_write(es, ES_SMPREG_VOL_DAC2, 1 << 12);
          es1371_src_write(es, ES_SMPREG_VOL_DAC2 + 1, 1 << 12);
          es1371_adc_rate(es, 22050, ES_ADC);
          es1371_dac_rate(es, 22050, ES_DAC1);
          es1371_dac_rate(es, 22050, ES_DAC2);
          /*
           * WARNING:
           * enabling the sample rate converter without properly programming
           * its parameters causes the chip to lock up (the SRC busy bit will
           * be stuck high, and I've found no way to rectify this other than
           * power cycle)
           */
          es1371_wait_src_ready(es);
          es_wr(es, ES1371_REG_SMPRATE, 0, 4);
          /* try to reset codec directly */
          es_wr(es, ES1371_REG_CODEC, 0, 4);
          es_wr(es, ES1370_REG_STATUS, cssr, 4);
          ES_UNLOCK(es);
  
          return (0);
  }
  
  /* -------------------------------------------------------------------- */
  
  static int
  es1371_wrcd(kobj_t obj, void *s, int addr, uint32_t data)
  {
          uint32_t t, x, orig;
          struct es_info *es = (struct es_info*)s;
  
          for (t = 0; t < 0x1000; t++) {
                  if (!es_rd(es, ES1371_REG_CODEC & CODEC_WIP, 4))
                          break;
          }
          /* save the current state for later */
          x = orig = es_rd(es, ES1371_REG_SMPRATE, 4);
          /* enable SRC state data in SRC mux */
          es_wr(es, ES1371_REG_SMPRATE, (x & (ES1371_DIS_SRC | ES1371_DIS_P1 |
              ES1371_DIS_P2 | ES1371_DIS_R1)) | 0x00010000, 4);
          /* busy wait */
          for (t = 0; t < 0x1000; t++) {
                  if ((es_rd(es, ES1371_REG_SMPRATE, 4) & 0x00870000) ==
                      0x00000000)
                          break;
          }
          /* wait for a SAFE time to write addr/data and then do it, dammit */
          for (t = 0; t < 0x1000; t++) {
                  if ((es_rd(es, ES1371_REG_SMPRATE, 4) & 0x00870000) ==
                      0x00010000)
                          break;
          }
  
          es_wr(es, ES1371_REG_CODEC, ((addr << CODEC_POADD_SHIFT) &
              CODEC_POADD_MASK) | ((data << CODEC_PODAT_SHIFT) &
              CODEC_PODAT_MASK), 4);
          /* restore SRC reg */
          es1371_wait_src_ready(s);
          es_wr(es, ES1371_REG_SMPRATE, orig, 4);
  
          return (0);
  }
  
  static int
  es1371_rdcd(kobj_t obj, void *s, int addr)
  {
          uint32_t t, x, orig;
          struct es_info *es = (struct es_info *)s;
  
          for (t = 0; t < 0x1000; t++) {
                  if (!(x = es_rd(es, ES1371_REG_CODEC, 4) & CODEC_WIP))
                          break;
          }
  
          /* save the current state for later */
          x = orig = es_rd(es, ES1371_REG_SMPRATE, 4);
          /* enable SRC state data in SRC mux */
          es_wr(es, ES1371_REG_SMPRATE, (x & (ES1371_DIS_SRC | ES1371_DIS_P1 |
              ES1371_DIS_P2 | ES1371_DIS_R1)) | 0x00010000, 4);
          /* busy wait */
          for (t = 0; t < 0x1000; t++) {
                  if ((x = es_rd(es, ES1371_REG_SMPRATE, 4) & 0x00870000) ==
                      0x00000000)
                          break;
          }
          /* wait for a SAFE time to write addr/data and then do it, dammit */
          for (t = 0; t < 0x1000; t++) {
                  if ((x = es_rd(es, ES1371_REG_SMPRATE, 4) & 0x00870000) ==
                      0x00010000)
                          break;
          }
  
          es_wr(es, ES1371_REG_CODEC, ((addr << CODEC_POADD_SHIFT) &
              CODEC_POADD_MASK) | CODEC_PORD, 4);
  
          /* restore SRC reg */
          es1371_wait_src_ready(s);
          es_wr(es, ES1371_REG_SMPRATE, orig, 4);
  
          /* now wait for the stinkin' data (RDY) */
          for (t = 0; t < 0x1000; t++) {
                  if ((x = es_rd(es, ES1371_REG_CODEC, 4)) & CODEC_RDY)
                          break;
          }
  
          return ((x & CODEC_PIDAT_MASK) >> CODEC_PIDAT_SHIFT);
  }
  
  static kobj_method_t es1371_ac97_methods[] = {
          KOBJMETHOD(ac97_read,           es1371_rdcd),
          KOBJMETHOD(ac97_write,          es1371_wrcd),
          KOBJMETHOD_END
  };
  AC97_DECLARE(es1371_ac97);
  
  /* -------------------------------------------------------------------- */
  
  static unsigned int
  es1371_src_read(struct es_info *es, unsigned short reg)
  {
          uint32_t r;
  
          r = es1371_wait_src_ready(es) & (ES1371_DIS_SRC | ES1371_DIS_P1 |
              ES1371_DIS_P2 | ES1371_DIS_R1);
          r |= ES1371_SRC_RAM_ADDRO(reg);
          es_wr(es, ES1371_REG_SMPRATE, r, 4);
          return (ES1371_SRC_RAM_DATAI(es1371_wait_src_ready(es)));
  }
  
  static void
  es1371_src_write(struct es_info *es, unsigned short reg, unsigned short data)
  {
          uint32_t r;
  
          r = es1371_wait_src_ready(es) & (ES1371_DIS_SRC | ES1371_DIS_P1 |
              ES1371_DIS_P2 | ES1371_DIS_R1);
          r |= ES1371_SRC_RAM_ADDRO(reg) |  ES1371_SRC_RAM_DATAO(data);
          es_wr(es, ES1371_REG_SMPRATE, r | ES1371_SRC_RAM_WE, 4);
  }
  
  static unsigned int
  es1371_adc_rate(struct es_info *es, unsigned int rate, int set)
  {
          unsigned int n, truncm, freq, result;
  
          ES_LOCK_ASSERT(es);
  
          if (rate > 48000)
                  rate = 48000;
          if (rate < 4000)
                  rate = 4000;
          n = rate / 3000;
          if ((1 << n) & ((1 << 15) | (1 << 13) | (1 << 11) | (1 << 9)))
                  n--;
          truncm = (21 * n - 1) | 1;
          freq = ((48000UL << 15) / rate) * n;
          result = (48000UL << 15) / (freq / n);
          if (set) {
                  if (rate >= 24000) {
                          if (truncm > 239)
                                  truncm = 239;
                          es1371_src_write(es, ES_SMPREG_ADC + ES_SMPREG_TRUNC_N,
                              (((239 - truncm) >> 1) << 9) | (n << 4));
                  } else {
                          if (truncm > 119)
                                  truncm = 119;
                          es1371_src_write(es, ES_SMPREG_ADC + ES_SMPREG_TRUNC_N,
                              0x8000 | (((119 - truncm) >> 1) << 9) | (n << 4));
                  }
                  es1371_src_write(es, ES_SMPREG_ADC + ES_SMPREG_INT_REGS,
                      (es1371_src_read(es, ES_SMPREG_ADC + ES_SMPREG_INT_REGS) &
                      0x00ff) | ((freq >> 5) & 0xfc00));
                  es1371_src_write(es, ES_SMPREG_ADC + ES_SMPREG_VFREQ_FRAC,
                      freq & 0x7fff);
                  es1371_src_write(es, ES_SMPREG_VOL_ADC, n << 8);
                  es1371_src_write(es, ES_SMPREG_VOL_ADC + 1, n << 8);
          }
          return (result);
  }
  
  static unsigned int
  es1371_dac_rate(struct es_info *es, unsigned int rate, int set)
  {
          unsigned int freq, r, result, dac, dis;
  
          ES_LOCK_ASSERT(es);
  
          if (rate > 48000)
                  rate = 48000;
          if (rate < 4000)
                  rate = 4000;
          freq = ((rate << 15) + 1500) / 3000;
          result = (freq * 3000) >> 15;
  
          dac = (set == ES_DAC1) ? ES_SMPREG_DAC1 : ES_SMPREG_DAC2;
          dis = (set == ES_DAC1) ? ES1371_DIS_P2 : ES1371_DIS_P1;
          r = (es1371_wait_src_ready(es) & (ES1371_DIS_SRC | ES1371_DIS_P1 |
              ES1371_DIS_P2 | ES1371_DIS_R1));
          es_wr(es, ES1371_REG_SMPRATE, r, 4);
          es1371_src_write(es, dac + ES_SMPREG_INT_REGS,
              (es1371_src_read(es, dac + ES_SMPREG_INT_REGS) & 0x00ff) |
              ((freq >> 5) & 0xfc00));
          es1371_src_write(es, dac + ES_SMPREG_VFREQ_FRAC, freq & 0x7fff);
          r = (es1371_wait_src_ready(es) &
              (ES1371_DIS_SRC | dis | ES1371_DIS_R1));
          es_wr(es, ES1371_REG_SMPRATE, r, 4);
          return (result);
  }
  
  static uint32_t
  es1371_wait_src_ready(struct es_info *es)
  {
          uint32_t t, r;
  
          for (t = 0; t < 0x1000; t++) {
                  if (!((r = es_rd(es, ES1371_REG_SMPRATE, 4)) &
                      ES1371_SRC_RAM_BUSY))
                          return (r);
                  DELAY(1);
          }
          device_printf(es->dev, "%s: timed out 0x%x [0x%x]\n", __func__,
                  ES1371_REG_SMPRATE, r);
          return (0);
  }
  
  /* -------------------------------------------------------------------- */
  
  /*
   * Probe and attach the card
   */
  
  static int
  es_pci_probe(device_t dev)
  {
          switch(pci_get_devid(dev)) {
          case ES1370_PCI_ID:
                  device_set_desc(dev, "AudioPCI ES1370");
                  return (BUS_PROBE_DEFAULT);
          case ES1371_PCI_ID:
                  switch(pci_get_revid(dev)) {
                  case ES1371REV_ES1371_A:
                          device_set_desc(dev, "AudioPCI ES1371-A");
                          return (BUS_PROBE_DEFAULT);
                  case ES1371REV_ES1371_B:
                          device_set_desc(dev, "AudioPCI ES1371-B");
                          return (BUS_PROBE_DEFAULT);
                  case ES1371REV_ES1373_A:
                          device_set_desc(dev, "AudioPCI ES1373-A");
                          return (BUS_PROBE_DEFAULT);
                  case ES1371REV_ES1373_B:
                          device_set_desc(dev, "AudioPCI ES1373-B");
                          return (BUS_PROBE_DEFAULT);
                  case ES1371REV_ES1373_8:
                          device_set_desc(dev, "AudioPCI ES1373-8");
                          return (BUS_PROBE_DEFAULT);
                  case ES1371REV_CT5880_A:
                          device_set_desc(dev, "Creative CT5880-A");
                          return (BUS_PROBE_DEFAULT);
                  default:
                          device_set_desc(dev, "AudioPCI ES1371-?");
                          device_printf(dev,
                              "unknown revision %d -- please report to "
                              "freebsd-multimedia@freebsd.org\n",
                              pci_get_revid(dev));
                          return (BUS_PROBE_DEFAULT);
                  }
          case ES1371_PCI_ID2:
                  device_set_desc(dev, "Strange AudioPCI ES1371-? (vid=3274)");
                  device_printf(dev,
                      "unknown revision %d -- please report to "
                      "freebsd-multimedia@freebsd.org\n", pci_get_revid(dev));
                  return (BUS_PROBE_DEFAULT);
          case CT4730_PCI_ID:
                  switch(pci_get_revid(dev)) {
                  case CT4730REV_CT4730_A:
                          device_set_desc(dev,
                              "Creative SB AudioPCI CT4730/EV1938");
                          return (BUS_PROBE_DEFAULT);
                  default:
                          device_set_desc(dev, "Creative SB AudioPCI CT4730-?");
                          device_printf(dev,
                              "unknown revision %d -- please report to "
                              "freebsd-multimedia@freebsd.org\n",
                              pci_get_revid(dev));
                          return (BUS_PROBE_DEFAULT);
                  }
          case CT5880_PCI_ID:
                  switch(pci_get_revid(dev)) {
                  case CT5880REV_CT5880_C:
                          device_set_desc(dev, "Creative CT5880-C");
                          return (BUS_PROBE_DEFAULT);
                  case CT5880REV_CT5880_D:
                          device_set_desc(dev, "Creative CT5880-D");
                          return (BUS_PROBE_DEFAULT);
                  case CT5880REV_CT5880_E:
                          device_set_desc(dev, "Creative CT5880-E");
                          return (BUS_PROBE_DEFAULT);
                  default:
                          device_set_desc(dev, "Creative CT5880-?");
                          device_printf(dev,
                              "unknown revision %d -- please report to "
                              "freebsd-multimedia@freebsd.org\n",
                              pci_get_revid(dev));
                          return (BUS_PROBE_DEFAULT);
                  }
          default:
                  return (ENXIO);
          }
  }
  
  static int
  sysctl_es137x_spdif_enable(SYSCTL_HANDLER_ARGS)
  {
          struct es_info *es;
          device_t dev;
          uint32_t r;
          int err, new_en;
  
          dev = oidp->oid_arg1;
          es = pcm_getdevinfo(dev);
          ES_LOCK(es);
          r = es_rd(es, ES1370_REG_STATUS, 4);
          ES_UNLOCK(es);
          new_en = (r & ENABLE_SPDIF) ? 1 : 0;
          err = sysctl_handle_int(oidp, &new_en, 0, req);
  
          if (err || req->newptr == NULL)
                  return (err);
          if (new_en < 0 || new_en > 1)
                  return (EINVAL);
  
          ES_LOCK(es);
          if (new_en) {
                  r |= ENABLE_SPDIF;
                  es->ctrl |= SPDIFEN_B;
                  es->ctrl |= RECEN_B;
          } else {
                  r &= ~ENABLE_SPDIF;
                  es->ctrl &= ~SPDIFEN_B;
                  es->ctrl &= ~RECEN_B;
          }
          es_wr(es, ES1370_REG_CONTROL, es->ctrl, 4);
          es_wr(es, ES1370_REG_STATUS, r, 4);
          ES_UNLOCK(es);
  
          return (0);
  }
  
  static int
  sysctl_es137x_latency_timer(SYSCTL_HANDLER_ARGS)
  {
          struct es_info *es;
          device_t dev;
          uint32_t val;
          int err;
  
          dev = oidp->oid_arg1;
          es = pcm_getdevinfo(dev);
          ES_LOCK(es);
          val = pci_read_config(dev, PCIR_LATTIMER, 1);
          ES_UNLOCK(es);
          err = sysctl_handle_int(oidp, &val, 0, req);
  
          if (err || req->newptr == NULL)
                  return (err);
          if (val > 255)
                  return (EINVAL);
  
          ES_LOCK(es);
          pci_write_config(dev, PCIR_LATTIMER, val, 1);
          ES_UNLOCK(es);
  
          return (0);
  }
  
  static int
  sysctl_es137x_fixed_rate(SYSCTL_HANDLER_ARGS)
  {
          struct es_info *es;
          device_t dev;
          uint32_t val;
          int err;
  
          dev = oidp->oid_arg1;
          es = pcm_getdevinfo(dev);
          ES_LOCK(es);
          val = ES_FIXED_RATE(es->escfg);
          if (val < es_caps.minspeed)
                  val = 0;
          ES_UNLOCK(es);
          err = sysctl_handle_int(oidp, &val, 0, req);
  
          if (err || req->newptr == NULL)
                  return (err);
          if (val != 0 && (val < es_caps.minspeed || val > es_caps.maxspeed))
                  return (EINVAL);
  
          ES_LOCK(es);
          if (es->ctrl & (CTRL_DAC2_EN|CTRL_ADC_EN)) {
                  ES_UNLOCK(es);
                  return (EBUSY);
          }
          if (val) {
                  if (val != ES_FIXED_RATE(es->escfg)) {
                          es->escfg = ES_SET_FIXED_RATE(es->escfg, val);
                          es->ch[ES_DAC2].caps.maxspeed = val;
                          es->ch[ES_DAC2].caps.minspeed = val;
                          es->ch[ES_ADC].caps.maxspeed = val;
                          es->ch[ES_ADC].caps.minspeed = val;
                          es->ctrl &= ~CTRL_PCLKDIV;
                          es->ctrl |= DAC2_SRTODIV(val) << CTRL_SH_PCLKDIV;
                          es_wr(es, ES1370_REG_CONTROL, es->ctrl, 4);
                  }
          } else {
                  es->escfg = ES_SET_FIXED_RATE(es->escfg, 0);
                  es->ch[ES_DAC2].caps = es_caps;
                  es->ch[ES_ADC].caps = es_caps;
          }
          ES_UNLOCK(es);
  
          return (0);
  }
  
  static int
  sysctl_es137x_single_pcm_mixer(SYSCTL_HANDLER_ARGS)
  {
          struct es_info *es;
          struct snddev_info *d;
          struct snd_mixer *m;
          device_t dev;
          uint32_t val, set;
          int recsrc, level, err;
  
          dev = oidp->oid_arg1;
          d = device_get_softc(dev);
          if (!PCM_REGISTERED(d) || d->mixer_dev == NULL ||
              d->mixer_dev->si_drv1 == NULL)
                  return (EINVAL);
          es = d->devinfo;
          if (es == NULL)
                  return (EINVAL);
          ES_LOCK(es);
          set = ES_SINGLE_PCM_MIX(es->escfg);
          val = set;
          ES_UNLOCK(es);
          err = sysctl_handle_int(oidp, &val, 0, req);
  
          if (err || req->newptr == NULL)
                  return (err);
          if (!(val == 0 || val == 1))
                  return (EINVAL);
          if (val == set)
                  return (0);
          PCM_ACQUIRE_QUICK(d);
          m = (d->mixer_dev != NULL) ? d->mixer_dev->si_drv1 : NULL;
          if (m == NULL) {
                  PCM_RELEASE_QUICK(d);
                  return (ENODEV);
          }
          if (mixer_busy(m) != 0) {
                  PCM_RELEASE_QUICK(d);
                  return (EBUSY);
          }
          level = mix_get(m, SOUND_MIXER_PCM);
          recsrc = mix_getrecsrc(m);
          if (level < 0 || recsrc < 0) {
                  PCM_RELEASE_QUICK(d);
                  return (ENXIO);
          }
  
          ES_LOCK(es);
          if (es->ctrl & (CTRL_ADC_EN | CTRL_DAC1_EN | CTRL_DAC2_EN)) {
                  ES_UNLOCK(es);
                  PCM_RELEASE_QUICK(d);
                  return (EBUSY);
          }
          if (val)
                  es->escfg = ES_SET_SINGLE_PCM_MIX(es->escfg, 1);
          else
                  es->escfg = ES_SET_SINGLE_PCM_MIX(es->escfg, 0);
          ES_UNLOCK(es);
          if (!val) {
                  mix_setdevs(m, mix_getdevs(m) | (1 << SOUND_MIXER_SYNTH));
                  mix_setrecdevs(m, mix_getrecdevs(m) | (1 << SOUND_MIXER_SYNTH));
                  err = mix_set(m, SOUND_MIXER_SYNTH, level & 0x7f,
                      (level >> 8) & 0x7f);
          } else {
                  err = mix_set(m, SOUND_MIXER_SYNTH, level & 0x7f,
                      (level >> 8) & 0x7f);
                  mix_setdevs(m, mix_getdevs(m) & ~(1 << SOUND_MIXER_SYNTH));
                  mix_setrecdevs(m, mix_getrecdevs(m) &
                      ~(1 << SOUND_MIXER_SYNTH));
          }
          if (!err) {
                  level = recsrc;
                  if (recsrc & (1 << SOUND_MIXER_PCM))
                          recsrc |= 1 << SOUND_MIXER_SYNTH;
                  else if (recsrc & (1 << SOUND_MIXER_SYNTH))
                          recsrc |= 1 << SOUND_MIXER_PCM;
                  if (level != recsrc)
                          err = mix_setrecsrc(m, recsrc);
          }
  
          PCM_RELEASE_QUICK(d);
  
          return (err);
  }
  
  static int
  sysctl_es_polling(SYSCTL_HANDLER_ARGS)
  {
          struct es_info *es;
          device_t dev;
          int err, val;
  
          dev = oidp->oid_arg1;
          es = pcm_getdevinfo(dev);
          if (es == NULL)
                  return (EINVAL);
          ES_LOCK(es);
          val = es->polling;
          ES_UNLOCK(es);
          err = sysctl_handle_int(oidp, &val, 0, req);
  
          if (err || req->newptr == NULL)
                  return (err);
          if (val < 0 || val > 1)
                  return (EINVAL);
  
          ES_LOCK(es);
          if (val != es->polling) {
                  if (es_chan_active(es) != 0)
                          err = EBUSY;
                  else if (val == 0)
                          es->polling = 0;
                  else
                          es->polling = 1;
          }
          ES_UNLOCK(es);
  
          return (err);
  }
  
  static void
  es_init_sysctls(device_t dev)
  {
          struct es_info *es;
          int r, devid, revid;
  
          devid = pci_get_devid(dev);
          revid = pci_get_revid(dev);
          es = pcm_getdevinfo(dev);
          if ((devid == ES1371_PCI_ID && revid == ES1371REV_ES1373_8) ||
              (devid == ES1371_PCI_ID && revid == ES1371REV_CT5880_A) ||
              (devid == CT5880_PCI_ID && revid == CT5880REV_CT5880_C) ||
              (devid == CT5880_PCI_ID && revid == CT5880REV_CT5880_D) ||
              (devid == CT5880_PCI_ID && revid == CT5880REV_CT5880_E)) {
                  /* XXX: an user should be able to set this with a control tool,
                     if not done before 7.0-RELEASE, this needs to be converted
                     to a device specific sysctl "dev.pcm.X.yyy" via
                     device_get_sysctl_*() as discussed on multimedia@ in msg-id
                     <861wujij2q.fsf@xps.des.no> */
                  SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
                      SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
                      "spdif_enabled", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE,
                      dev, sizeof(dev), sysctl_es137x_spdif_enable, "I",
                      "Enable S/PDIF output on primary playback channel");
          } else if (devid == ES1370_PCI_ID) {
                  /*
                   * Enable fixed rate sysctl if both DAC2 / ADC enabled.
                   */
                  if (es->ch[ES_DAC2].channel != NULL &&
                      es->ch[ES_ADC].channel != NULL) {
                  /* XXX: an user should be able to set this with a control tool,
                     if not done before 7.0-RELEASE, this needs to be converted
                     to a device specific sysctl "dev.pcm.X.yyy" via
                     device_get_sysctl_*() as discussed on multimedia@ in msg-id
                     <861wujij2q.fsf@xps.des.no> */
                          SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
                              SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
                              OID_AUTO, "fixed_rate",
                              CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE,
                              dev, sizeof(dev), sysctl_es137x_fixed_rate, "I",
                              "Enable fixed rate playback/recording");
                  }
                  /*
                   * Enable single pcm mixer sysctl if both DAC1/2 enabled.
                   */
                  if (es->ch[ES_DAC1].channel != NULL &&
                      es->ch[ES_DAC2].channel != NULL) {
                  /* XXX: an user should be able to set this with a control tool,
                     if not done before 7.0-RELEASE, this needs to be converted
                     to a device specific sysctl "dev.pcm.X.yyy" via
                     device_get_sysctl_*() as discussed on multimedia@ in msg-id
                     <861wujij2q.fsf@xps.des.no> */
                          SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
                              SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
                              OID_AUTO, "single_pcm_mixer",
                              CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, dev,
                              sizeof(dev), sysctl_es137x_single_pcm_mixer, "I",
                              "Single PCM mixer controller for both DAC1/DAC2");
                  }
          }
          if (resource_int_value(device_get_name(dev), device_get_unit(dev),
              "latency_timer", &r) == 0 && !(r < 0 || r > 255))
                  pci_write_config(dev, PCIR_LATTIMER, r, 1);
          /* XXX: this needs to be converted to a device specific sysctl
             "dev.pcm.X.yyy" via device_get_sysctl_*() as discussed on
             multimedia@ in msg-id <861wujij2q.fsf@xps.des.no> */
          SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
              SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
              "latency_timer", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE,
              dev, sizeof(dev), sysctl_es137x_latency_timer, "I",
              "PCI Latency Timer configuration");
          SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
              SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
              "polling", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, dev,
              sizeof(dev), sysctl_es_polling, "I", "Enable polling mode");
  }
  
  static int
  es_pci_attach(device_t dev)
  {
          struct es_info *es = NULL;
          int             mapped, i, numplay, dac_cfg;
          char            status[SND_STATUSLEN];
          struct ac97_info *codec = NULL;
          kobj_class_t    ct = NULL;
          uint32_t devid;
  
          es = malloc(sizeof *es, M_DEVBUF, M_WAITOK | M_ZERO);
          es->lock = snd_mtxcreate(device_get_nameunit(dev), "snd_es137x softc");
          es->dev = dev;
          es->escfg = 0;
          mapped = 0;
  
          pci_enable_busmaster(dev);
          if (mapped == 0) {
                  es->regid = MEM_MAP_REG;
                  es->regtype = SYS_RES_MEMORY;
                  es->reg = bus_alloc_resource_any(dev, es->regtype, &es->regid,
                      RF_ACTIVE);
                  if (es->reg)
                          mapped++;
          }
          if (mapped == 0) {
                  es->regid = PCIR_BAR(0);
                  es->regtype = SYS_RES_IOPORT;
                  es->reg = bus_alloc_resource_any(dev, es->regtype, &es->regid,
                      RF_ACTIVE);
                  if (es->reg)
                          mapped++;
          }
          if (mapped == 0) {
                  device_printf(dev, "unable to map register space\n");
                  goto bad;
          }
  
          es->st = rman_get_bustag(es->reg);
          es->sh = rman_get_bushandle(es->reg);
          callout_init(&es->poll_timer, 1);
          es->poll_ticks = 1;
  
          if (resource_int_value(device_get_name(dev),
              device_get_unit(dev), "polling", &i) == 0 && i != 0)
                  es->polling = 1;
          else
                  es->polling = 0;
  
          es->bufsz = pcm_getbuffersize(dev, 4096, ES_DEFAULT_BUFSZ, 65536);
          if (resource_int_value(device_get_name(dev),
              device_get_unit(dev), "blocksize", &i) == 0 && i > 0) {
                  i &= ES_BLK_ALIGN;
                  if (i < ES_BLK_MIN)
                          i = ES_BLK_MIN;
                  es->blkcnt = es->bufsz / i;
                  i = 0;
                  while (es->blkcnt >> i)
                          i++;
                  es->blkcnt = 1 << (i - 1);
                  if (es->blkcnt < ES_DMA_SEGS_MIN)
                          es->blkcnt = ES_DMA_SEGS_MIN;
                  else if (es->blkcnt > ES_DMA_SEGS_MAX)
                          es->blkcnt = ES_DMA_SEGS_MAX;
  
          } else
                  es->blkcnt = 2;
  
          if (resource_int_value(device_get_name(dev), device_get_unit(dev),
              "dac", &dac_cfg) == 0) {
                  if (dac_cfg < 0 || dac_cfg > 3)
                          dac_cfg = ES_DEFAULT_DAC_CFG;
          } else
                  dac_cfg = ES_DEFAULT_DAC_CFG;
  
          switch (dac_cfg) {
          case 0: /* Enable all DAC: DAC1, DAC2 */
                  numplay = 2;
                  es->escfg = ES_SET_DAC_FIRST(es->escfg, ES_DAC1);
                  es->escfg = ES_SET_DAC_SECOND(es->escfg, ES_DAC2);
                  break;
          case 1: /* Only DAC1 */
                  numplay = 1;
                  es->escfg = ES_SET_DAC_FIRST(es->escfg, ES_DAC1);
                  break;
          case 3: /* Enable all DAC / swap position: DAC2, DAC1 */
                  numplay = 2;
                  es->escfg = ES_SET_DAC_FIRST(es->escfg, ES_DAC2);
                  es->escfg = ES_SET_DAC_SECOND(es->escfg, ES_DAC1);
                  break;
          case 2: /* Only DAC2 */
          default:
                  numplay = 1;
                  es->escfg = ES_SET_DAC_FIRST(es->escfg, ES_DAC2);
                  break;
          }
          es->escfg = ES_SET_NUMPLAY(es->escfg, numplay);
          es->escfg = ES_SET_NUMREC(es->escfg, 1);
  
          devid = pci_get_devid(dev);
          switch (devid) {
          case ES1371_PCI_ID:
          case ES1371_PCI_ID2:
          case CT5880_PCI_ID:
          case CT4730_PCI_ID:
                  es1371_init(es);
                  codec = AC97_CREATE(dev, es, es1371_ac97);
                  if (codec == NULL)
                          goto bad;
                  /* our init routine does everything for us */
                  /* set to NULL; flag mixer_init not to run the ac97_init */
                  /*        ac97_mixer.init = NULL;  */
                  if (mixer_init(dev, ac97_getmixerclass(), codec))
                          goto bad;
                  ct = &eschan1371_class;
                  break;
          case ES1370_PCI_ID:
                  es1370_init(es);
                  /* 
                   * Disable fixed rate operation if DAC2 disabled.
                   * This is a special case for es1370 only, where the
                   * speed of both ADC and DAC2 locked together.
                   */
                  if (!ES_DAC2_ENABLED(es->escfg))
                          es->escfg = ES_SET_FIXED_RATE(es->escfg, 0);
                  if (mixer_init(dev, &es1370_mixer_class, es))
                          goto bad;
                  ct = &eschan1370_class;
                  break;
          default:
                  goto bad;
                  /* NOTREACHED */
          }
  
          es->irqid = 0;
          es->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &es->irqid,
              RF_ACTIVE | RF_SHAREABLE);
          if (!es->irq || snd_setup_intr(dev, es->irq, INTR_MPSAFE, es_intr,
              es, &es->ih)) {
                  device_printf(dev, "unable to map interrupt\n");
                  goto bad;
          }
  
          if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev),
                  /*alignment*/2, /*boundary*/0,
                  /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
                  /*highaddr*/BUS_SPACE_MAXADDR,
                  /*filter*/NULL, /*filterarg*/NULL,
                  /*maxsize*/es->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff,
                  /*flags*/0, /*lockfunc*/NULL,
                  /*lockarg*/NULL, &es->parent_dmat) != 0) {
                  device_printf(dev, "unable to create dma tag\n");
                  goto bad;
          }
  
          snprintf(status, SND_STATUSLEN, "at %s 0x%jx irq %jd %s",
              (es->regtype == SYS_RES_IOPORT)? "io" : "memory",
              rman_get_start(es->reg), rman_get_start(es->irq),
              PCM_KLDSTRING(snd_es137x));
  
          if (pcm_register(dev, es, numplay, 1))
                  goto bad;
          for (i = 0; i < numplay; i++)
                  pcm_addchan(dev, PCMDIR_PLAY, ct, es);
          pcm_addchan(dev, PCMDIR_REC, ct, es);
          es_init_sysctls(dev);
          pcm_setstatus(dev, status);
          es->escfg = ES_SET_GP(es->escfg, 0);
          if (numplay == 1)
                  device_printf(dev, "<Playback: DAC%d / Record: ADC>\n",
                      ES_DAC_FIRST(es->escfg) + 1);
          else if (numplay == 2)
                  device_printf(dev, "<Playback: DAC%d,DAC%d / Record: ADC>\n",
                      ES_DAC_FIRST(es->escfg) + 1, ES_DAC_SECOND(es->escfg) + 1);
          return (0);
  
  bad:
          if (es->parent_dmat)
                  bus_dma_tag_destroy(es->parent_dmat);
          if (es->ih)
                  bus_teardown_intr(dev, es->irq, es->ih);
          if (es->irq)
                  bus_release_resource(dev, SYS_RES_IRQ, es->irqid, es->irq);
          if (codec)
                  ac97_destroy(codec);
          if (es->reg)
                  bus_release_resource(dev, es->regtype, es->regid, es->reg);
          if (es->lock)
                  snd_mtxfree(es->lock);
          if (es)
                  free(es, M_DEVBUF);
          return (ENXIO);
  }
  
  static int
  es_pci_detach(device_t dev)
  {
          int r;
          struct es_info *es;
  
          r = pcm_unregister(dev);
          if (r)
                  return (r);
  
          es = pcm_getdevinfo(dev);
  
          if (es != NULL && es->num != 0) {
                  ES_LOCK(es);
                  es->polling = 0;
                  callout_stop(&es->poll_timer);
                  ES_UNLOCK(es);
                  callout_drain(&es->poll_timer);
          }
  
          bus_teardown_intr(dev, es->irq, es->ih);
          bus_release_resource(dev, SYS_RES_IRQ, es->irqid, es->irq);
          bus_release_resource(dev, es->regtype, es->regid, es->reg);
          bus_dma_tag_destroy(es->parent_dmat);
          snd_mtxfree(es->lock);
          free(es, M_DEVBUF);
  
          return (0);
  }
  
  static device_method_t es_methods[] = {
          /* Device interface */
          DEVMETHOD(device_probe,         es_pci_probe),
          DEVMETHOD(device_attach,        es_pci_attach),
          DEVMETHOD(device_detach,        es_pci_detach),
          { 0, 0 }
  };
  
  static driver_t es_driver = {
          "pcm",
          es_methods,
          PCM_SOFTC_SIZE,
  };
  
  DRIVER_MODULE(snd_es137x, pci, es_driver, 0, 0);
  MODULE_DEPEND(snd_es137x, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
  MODULE_VERSION(snd_es137x, 1);

Cache object: 734ea8fa1b13c0a4e5a96061d9a7ad07