Index: head/sys/dev/sound/pcm/channel.c =================================================================== --- head/sys/dev/sound/pcm/channel.c (revision 282649) +++ head/sys/dev/sound/pcm/channel.c (revision 282650) @@ -1,2538 +1,2513 @@ /*- * Copyright (c) 2005-2009 Ariff Abdullah * Portions Copyright (c) Ryan Beasley - GSoC 2006 * Copyright (c) 1999 Cameron Grant * Portions Copyright (c) Luigi Rizzo - 1997-99 * 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. */ #include "opt_isa.h" #ifdef HAVE_KERNEL_OPTION_HEADERS #include "opt_snd.h" #endif #include #include #include "feeder_if.h" SND_DECLARE_FILE("$FreeBSD$"); int report_soft_formats = 1; SYSCTL_INT(_hw_snd, OID_AUTO, report_soft_formats, CTLFLAG_RW, &report_soft_formats, 0, "report software-emulated formats"); int report_soft_matrix = 1; SYSCTL_INT(_hw_snd, OID_AUTO, report_soft_matrix, CTLFLAG_RW, &report_soft_matrix, 0, "report software-emulated channel matrixing"); int chn_latency = CHN_LATENCY_DEFAULT; static int sysctl_hw_snd_latency(SYSCTL_HANDLER_ARGS) { int err, val; val = chn_latency; err = sysctl_handle_int(oidp, &val, 0, req); if (err != 0 || req->newptr == NULL) return err; if (val < CHN_LATENCY_MIN || val > CHN_LATENCY_MAX) err = EINVAL; else chn_latency = val; return err; } SYSCTL_PROC(_hw_snd, OID_AUTO, latency, CTLTYPE_INT | CTLFLAG_RWTUN, 0, sizeof(int), sysctl_hw_snd_latency, "I", "buffering latency (0=low ... 10=high)"); int chn_latency_profile = CHN_LATENCY_PROFILE_DEFAULT; static int sysctl_hw_snd_latency_profile(SYSCTL_HANDLER_ARGS) { int err, val; val = chn_latency_profile; err = sysctl_handle_int(oidp, &val, 0, req); if (err != 0 || req->newptr == NULL) return err; if (val < CHN_LATENCY_PROFILE_MIN || val > CHN_LATENCY_PROFILE_MAX) err = EINVAL; else chn_latency_profile = val; return err; } SYSCTL_PROC(_hw_snd, OID_AUTO, latency_profile, CTLTYPE_INT | CTLFLAG_RWTUN, 0, sizeof(int), sysctl_hw_snd_latency_profile, "I", "buffering latency profile (0=aggressive 1=safe)"); static int chn_timeout = CHN_TIMEOUT; static int sysctl_hw_snd_timeout(SYSCTL_HANDLER_ARGS) { int err, val; val = chn_timeout; err = sysctl_handle_int(oidp, &val, 0, req); if (err != 0 || req->newptr == NULL) return err; if (val < CHN_TIMEOUT_MIN || val > CHN_TIMEOUT_MAX) err = EINVAL; else chn_timeout = val; return err; } SYSCTL_PROC(_hw_snd, OID_AUTO, timeout, CTLTYPE_INT | CTLFLAG_RWTUN, 0, sizeof(int), sysctl_hw_snd_timeout, "I", "interrupt timeout (1 - 10) seconds"); static int chn_vpc_autoreset = 1; SYSCTL_INT(_hw_snd, OID_AUTO, vpc_autoreset, CTLFLAG_RWTUN, &chn_vpc_autoreset, 0, "automatically reset channels volume to 0db"); static int chn_vol_0db_pcm = SND_VOL_0DB_PCM; static void chn_vpc_proc(int reset, int db) { struct snddev_info *d; struct pcm_channel *c; int i; for (i = 0; pcm_devclass != NULL && i < devclass_get_maxunit(pcm_devclass); i++) { d = devclass_get_softc(pcm_devclass, i); if (!PCM_REGISTERED(d)) continue; PCM_LOCK(d); PCM_WAIT(d); PCM_ACQUIRE(d); CHN_FOREACH(c, d, channels.pcm) { CHN_LOCK(c); CHN_SETVOLUME(c, SND_VOL_C_PCM, SND_CHN_T_VOL_0DB, db); if (reset != 0) chn_vpc_reset(c, SND_VOL_C_PCM, 1); CHN_UNLOCK(c); } PCM_RELEASE(d); PCM_UNLOCK(d); } } static int sysctl_hw_snd_vpc_0db(SYSCTL_HANDLER_ARGS) { int err, val; val = chn_vol_0db_pcm; err = sysctl_handle_int(oidp, &val, 0, req); if (err != 0 || req->newptr == NULL) return (err); if (val < SND_VOL_0DB_MIN || val > SND_VOL_0DB_MAX) return (EINVAL); chn_vol_0db_pcm = val; chn_vpc_proc(0, val); return (0); } SYSCTL_PROC(_hw_snd, OID_AUTO, vpc_0db, CTLTYPE_INT | CTLFLAG_RWTUN, 0, sizeof(int), sysctl_hw_snd_vpc_0db, "I", "0db relative level"); static int sysctl_hw_snd_vpc_reset(SYSCTL_HANDLER_ARGS) { int err, val; val = 0; err = sysctl_handle_int(oidp, &val, 0, req); if (err != 0 || req->newptr == NULL || val == 0) return (err); chn_vol_0db_pcm = SND_VOL_0DB_PCM; chn_vpc_proc(1, SND_VOL_0DB_PCM); return (0); } SYSCTL_PROC(_hw_snd, OID_AUTO, vpc_reset, CTLTYPE_INT | CTLFLAG_RW, 0, sizeof(int), sysctl_hw_snd_vpc_reset, "I", "reset volume on all channels"); static int chn_usefrags = 0; static int chn_syncdelay = -1; SYSCTL_INT(_hw_snd, OID_AUTO, usefrags, CTLFLAG_RWTUN, &chn_usefrags, 0, "prefer setfragments() over setblocksize()"); SYSCTL_INT(_hw_snd, OID_AUTO, syncdelay, CTLFLAG_RWTUN, &chn_syncdelay, 0, "append (0-1000) millisecond trailing buffer delay on each sync"); /** * @brief Channel sync group lock * * Clients should acquire this lock @b without holding any channel locks * before touching syncgroups or the main syncgroup list. */ struct mtx snd_pcm_syncgroups_mtx; MTX_SYSINIT(pcm_syncgroup, &snd_pcm_syncgroups_mtx, "PCM channel sync group lock", MTX_DEF); /** * @brief syncgroups' master list * * Each time a channel syncgroup is created, it's added to this list. This * list should only be accessed with @sa snd_pcm_syncgroups_mtx held. * * See SNDCTL_DSP_SYNCGROUP for more information. */ struct pcm_synclist snd_pcm_syncgroups = SLIST_HEAD_INITIALIZER(snd_pcm_syncgroups); static void chn_lockinit(struct pcm_channel *c, int dir) { switch (dir) { case PCMDIR_PLAY: c->lock = snd_mtxcreate(c->name, "pcm play channel"); cv_init(&c->intr_cv, "pcmwr"); break; case PCMDIR_PLAY_VIRTUAL: c->lock = snd_mtxcreate(c->name, "pcm virtual play channel"); cv_init(&c->intr_cv, "pcmwrv"); break; case PCMDIR_REC: c->lock = snd_mtxcreate(c->name, "pcm record channel"); cv_init(&c->intr_cv, "pcmrd"); break; case PCMDIR_REC_VIRTUAL: c->lock = snd_mtxcreate(c->name, "pcm virtual record channel"); cv_init(&c->intr_cv, "pcmrdv"); break; default: panic("%s(): Invalid direction=%d", __func__, dir); break; } cv_init(&c->cv, "pcmchn"); } static void chn_lockdestroy(struct pcm_channel *c) { CHN_LOCKASSERT(c); CHN_BROADCAST(&c->cv); CHN_BROADCAST(&c->intr_cv); cv_destroy(&c->cv); cv_destroy(&c->intr_cv); snd_mtxfree(c->lock); } /** * @brief Determine channel is ready for I/O * * @retval 1 = ready for I/O * @retval 0 = not ready for I/O */ static int chn_polltrigger(struct pcm_channel *c) { struct snd_dbuf *bs = c->bufsoft; u_int delta; CHN_LOCKASSERT(c); if (c->flags & CHN_F_MMAP) { if (sndbuf_getprevtotal(bs) < c->lw) delta = c->lw; else delta = sndbuf_gettotal(bs) - sndbuf_getprevtotal(bs); } else { if (c->direction == PCMDIR_PLAY) delta = sndbuf_getfree(bs); else delta = sndbuf_getready(bs); } return ((delta < c->lw) ? 0 : 1); } static void chn_pollreset(struct pcm_channel *c) { CHN_LOCKASSERT(c); sndbuf_updateprevtotal(c->bufsoft); } static void chn_wakeup(struct pcm_channel *c) { struct snd_dbuf *bs; struct pcm_channel *ch; CHN_LOCKASSERT(c); bs = c->bufsoft; if (CHN_EMPTY(c, children.busy)) { if (SEL_WAITING(sndbuf_getsel(bs)) && chn_polltrigger(c)) selwakeuppri(sndbuf_getsel(bs), PRIBIO); if (c->flags & CHN_F_SLEEPING) { /* * Ok, I can just panic it right here since it is * quite obvious that we never allow multiple waiters * from userland. I'm too generous... */ CHN_BROADCAST(&c->intr_cv); } } else { CHN_FOREACH(ch, c, children.busy) { CHN_LOCK(ch); chn_wakeup(ch); CHN_UNLOCK(ch); } } } static int chn_sleep(struct pcm_channel *c, int timeout) { int ret; CHN_LOCKASSERT(c); if (c->flags & CHN_F_DEAD) return (EINVAL); c->flags |= CHN_F_SLEEPING; ret = cv_timedwait_sig(&c->intr_cv, c->lock, timeout); c->flags &= ~CHN_F_SLEEPING; return ((c->flags & CHN_F_DEAD) ? EINVAL : ret); } /* * chn_dmaupdate() tracks the status of a dma transfer, * updating pointers. */ static unsigned int chn_dmaupdate(struct pcm_channel *c) { struct snd_dbuf *b = c->bufhard; unsigned int delta, old, hwptr, amt; KASSERT(sndbuf_getsize(b) > 0, ("bufsize == 0")); CHN_LOCKASSERT(c); old = sndbuf_gethwptr(b); hwptr = chn_getptr(c); delta = (sndbuf_getsize(b) + hwptr - old) % sndbuf_getsize(b); sndbuf_sethwptr(b, hwptr); if (c->direction == PCMDIR_PLAY) { amt = min(delta, sndbuf_getready(b)); amt -= amt % sndbuf_getalign(b); if (amt > 0) sndbuf_dispose(b, NULL, amt); } else { amt = min(delta, sndbuf_getfree(b)); amt -= amt % sndbuf_getalign(b); if (amt > 0) sndbuf_acquire(b, NULL, amt); } if (snd_verbose > 3 && CHN_STARTED(c) && delta == 0) { device_printf(c->dev, "WARNING: %s DMA completion " "too fast/slow ! hwptr=%u, old=%u " "delta=%u amt=%u ready=%u free=%u\n", CHN_DIRSTR(c), hwptr, old, delta, amt, sndbuf_getready(b), sndbuf_getfree(b)); } return delta; } static void chn_wrfeed(struct pcm_channel *c) { struct snd_dbuf *b = c->bufhard; struct snd_dbuf *bs = c->bufsoft; unsigned int amt, want, wasfree; CHN_LOCKASSERT(c); if ((c->flags & CHN_F_MMAP) && !(c->flags & CHN_F_CLOSING)) sndbuf_acquire(bs, NULL, sndbuf_getfree(bs)); wasfree = sndbuf_getfree(b); want = min(sndbuf_getsize(b), imax(0, sndbuf_xbytes(sndbuf_getsize(bs), bs, b) - sndbuf_getready(b))); amt = min(wasfree, want); if (amt > 0) sndbuf_feed(bs, b, c, c->feeder, amt); /* * Possible xruns. There should be no empty space left in buffer. */ if (sndbuf_getready(b) < want) c->xruns++; if (sndbuf_getfree(b) < wasfree) chn_wakeup(c); } #if 0 static void chn_wrupdate(struct pcm_channel *c) { CHN_LOCKASSERT(c); KASSERT(c->direction == PCMDIR_PLAY, ("%s(): bad channel", __func__)); if ((c->flags & (CHN_F_MMAP | CHN_F_VIRTUAL)) || CHN_STOPPED(c)) return; chn_dmaupdate(c); chn_wrfeed(c); /* tell the driver we've updated the primary buffer */ chn_trigger(c, PCMTRIG_EMLDMAWR); } #endif static void chn_wrintr(struct pcm_channel *c) { CHN_LOCKASSERT(c); /* update pointers in primary buffer */ chn_dmaupdate(c); /* ...and feed from secondary to primary */ chn_wrfeed(c); /* tell the driver we've updated the primary buffer */ chn_trigger(c, PCMTRIG_EMLDMAWR); } /* * user write routine - uiomove data into secondary buffer, trigger if necessary * if blocking, sleep, rinse and repeat. * * called externally, so must handle locking */ int chn_write(struct pcm_channel *c, struct uio *buf) { struct snd_dbuf *bs = c->bufsoft; void *off; int ret, timeout, sz, t, p; CHN_LOCKASSERT(c); ret = 0; timeout = chn_timeout * hz; while (ret == 0 && buf->uio_resid > 0) { sz = min(buf->uio_resid, sndbuf_getfree(bs)); if (sz > 0) { /* * The following assumes that the free space in * the buffer can never be less around the * unlock-uiomove-lock sequence. */ while (ret == 0 && sz > 0) { p = sndbuf_getfreeptr(bs); t = min(sz, sndbuf_getsize(bs) - p); off = sndbuf_getbufofs(bs, p); CHN_UNLOCK(c); ret = uiomove(off, t, buf); CHN_LOCK(c); sz -= t; sndbuf_acquire(bs, NULL, t); } ret = 0; if (CHN_STOPPED(c) && !(c->flags & CHN_F_NOTRIGGER)) { ret = chn_start(c, 0); if (ret != 0) c->flags |= CHN_F_DEAD; } } else if (c->flags & (CHN_F_NBIO | CHN_F_NOTRIGGER)) { /** * @todo Evaluate whether EAGAIN is truly desirable. * 4Front drivers behave like this, but I'm * not sure if it at all violates the "write * should be allowed to block" model. * * The idea is that, while set with CHN_F_NOTRIGGER, * a channel isn't playing, *but* without this we * end up with "interrupt timeout / channel dead". */ ret = EAGAIN; } else { ret = chn_sleep(c, timeout); if (ret == EAGAIN) { ret = EINVAL; c->flags |= CHN_F_DEAD; device_printf(c->dev, "%s(): %s: " "play interrupt timeout, channel dead\n", __func__, c->name); } else if (ret == ERESTART || ret == EINTR) c->flags |= CHN_F_ABORTING; } } return (ret); } /* * Feed new data from the read buffer. Can be called in the bottom half. */ static void chn_rdfeed(struct pcm_channel *c) { struct snd_dbuf *b = c->bufhard; struct snd_dbuf *bs = c->bufsoft; unsigned int amt; CHN_LOCKASSERT(c); if (c->flags & CHN_F_MMAP) sndbuf_dispose(bs, NULL, sndbuf_getready(bs)); amt = sndbuf_getfree(bs); if (amt > 0) sndbuf_feed(b, bs, c, c->feeder, amt); amt = sndbuf_getready(b); if (amt > 0) { c->xruns++; sndbuf_dispose(b, NULL, amt); } if (sndbuf_getready(bs) > 0) chn_wakeup(c); } #if 0 static void chn_rdupdate(struct pcm_channel *c) { CHN_LOCKASSERT(c); KASSERT(c->direction == PCMDIR_REC, ("chn_rdupdate on bad channel")); if ((c->flags & (CHN_F_MMAP | CHN_F_VIRTUAL)) || CHN_STOPPED(c)) return; chn_trigger(c, PCMTRIG_EMLDMARD); chn_dmaupdate(c); chn_rdfeed(c); } #endif /* read interrupt routine. Must be called with interrupts blocked. */ static void chn_rdintr(struct pcm_channel *c) { CHN_LOCKASSERT(c); /* tell the driver to update the primary buffer if non-dma */ chn_trigger(c, PCMTRIG_EMLDMARD); /* update pointers in primary buffer */ chn_dmaupdate(c); /* ...and feed from primary to secondary */ chn_rdfeed(c); } /* * user read routine - trigger if necessary, uiomove data from secondary buffer * if blocking, sleep, rinse and repeat. * * called externally, so must handle locking */ int chn_read(struct pcm_channel *c, struct uio *buf) { struct snd_dbuf *bs = c->bufsoft; void *off; int ret, timeout, sz, t, p; CHN_LOCKASSERT(c); if (CHN_STOPPED(c) && !(c->flags & CHN_F_NOTRIGGER)) { ret = chn_start(c, 0); if (ret != 0) { c->flags |= CHN_F_DEAD; return (ret); } } ret = 0; timeout = chn_timeout * hz; while (ret == 0 && buf->uio_resid > 0) { sz = min(buf->uio_resid, sndbuf_getready(bs)); if (sz > 0) { /* * The following assumes that the free space in * the buffer can never be less around the * unlock-uiomove-lock sequence. */ while (ret == 0 && sz > 0) { p = sndbuf_getreadyptr(bs); t = min(sz, sndbuf_getsize(bs) - p); off = sndbuf_getbufofs(bs, p); CHN_UNLOCK(c); ret = uiomove(off, t, buf); CHN_LOCK(c); sz -= t; sndbuf_dispose(bs, NULL, t); } ret = 0; } else if (c->flags & (CHN_F_NBIO | CHN_F_NOTRIGGER)) ret = EAGAIN; else { ret = chn_sleep(c, timeout); if (ret == EAGAIN) { ret = EINVAL; c->flags |= CHN_F_DEAD; device_printf(c->dev, "%s(): %s: " "record interrupt timeout, channel dead\n", __func__, c->name); } else if (ret == ERESTART || ret == EINTR) c->flags |= CHN_F_ABORTING; } } return (ret); } void chn_intr_locked(struct pcm_channel *c) { CHN_LOCKASSERT(c); c->interrupts++; if (c->direction == PCMDIR_PLAY) chn_wrintr(c); else chn_rdintr(c); } void chn_intr(struct pcm_channel *c) { if (CHN_LOCKOWNED(c)) { chn_intr_locked(c); return; } CHN_LOCK(c); chn_intr_locked(c); CHN_UNLOCK(c); } u_int32_t chn_start(struct pcm_channel *c, int force) { u_int32_t i, j; struct snd_dbuf *b = c->bufhard; struct snd_dbuf *bs = c->bufsoft; int err; CHN_LOCKASSERT(c); /* if we're running, or if we're prevented from triggering, bail */ if (CHN_STARTED(c) || ((c->flags & CHN_F_NOTRIGGER) && !force)) return (EINVAL); err = 0; if (force) { i = 1; j = 0; } else { if (c->direction == PCMDIR_REC) { i = sndbuf_getfree(bs); j = (i > 0) ? 1 : sndbuf_getready(b); } else { if (sndbuf_getfree(bs) == 0) { i = 1; j = 0; } else { struct snd_dbuf *pb; pb = CHN_BUF_PARENT(c, b); i = sndbuf_xbytes(sndbuf_getready(bs), bs, pb); j = sndbuf_getalign(pb); } } if (snd_verbose > 3 && CHN_EMPTY(c, children)) device_printf(c->dev, "%s(): %s (%s) threshold " "i=%d j=%d\n", __func__, CHN_DIRSTR(c), (c->flags & CHN_F_VIRTUAL) ? "virtual" : "hardware", i, j); } if (i >= j) { c->flags |= CHN_F_TRIGGERED; sndbuf_setrun(b, 1); if (c->flags & CHN_F_CLOSING) c->feedcount = 2; else { c->feedcount = 0; c->interrupts = 0; c->xruns = 0; } if (c->parentchannel == NULL) { if (c->direction == PCMDIR_PLAY) sndbuf_fillsilence_rl(b, sndbuf_xbytes(sndbuf_getsize(bs), bs, b)); if (snd_verbose > 3) device_printf(c->dev, "%s(): %s starting! (%s/%s) " "(ready=%d force=%d i=%d j=%d " "intrtimeout=%u latency=%dms)\n", __func__, (c->flags & CHN_F_HAS_VCHAN) ? "VCHAN PARENT" : "HW", CHN_DIRSTR(c), (c->flags & CHN_F_CLOSING) ? "closing" : "running", sndbuf_getready(b), force, i, j, c->timeout, (sndbuf_getsize(b) * 1000) / (sndbuf_getalign(b) * sndbuf_getspd(b))); } err = chn_trigger(c, PCMTRIG_START); } return (err); } void chn_resetbuf(struct pcm_channel *c) { struct snd_dbuf *b = c->bufhard; struct snd_dbuf *bs = c->bufsoft; c->blocks = 0; sndbuf_reset(b); sndbuf_reset(bs); } /* * chn_sync waits until the space in the given channel goes above * a threshold. The threshold is checked against fl or rl respectively. * Assume that the condition can become true, do not check here... */ int chn_sync(struct pcm_channel *c, int threshold) { struct snd_dbuf *b, *bs; int ret, count, hcount, minflush, resid, residp, syncdelay, blksz; u_int32_t cflag; CHN_LOCKASSERT(c); if (c->direction != PCMDIR_PLAY) return (EINVAL); bs = c->bufsoft; if ((c->flags & (CHN_F_DEAD | CHN_F_ABORTING)) || (threshold < 1 && sndbuf_getready(bs) < 1)) return (0); /* if we haven't yet started and nothing is buffered, else start*/ if (CHN_STOPPED(c)) { if (threshold > 0 || sndbuf_getready(bs) > 0) { ret = chn_start(c, 1); if (ret != 0) return (ret); } else return (0); } b = CHN_BUF_PARENT(c, c->bufhard); minflush = threshold + sndbuf_xbytes(sndbuf_getready(b), b, bs); syncdelay = chn_syncdelay; if (syncdelay < 0 && (threshold > 0 || sndbuf_getready(bs) > 0)) minflush += sndbuf_xbytes(sndbuf_getsize(b), b, bs); /* * Append (0-1000) millisecond trailing buffer (if needed) * for slower / high latency hardwares (notably USB audio) * to avoid audible truncation. */ if (syncdelay > 0) minflush += (sndbuf_getalign(bs) * sndbuf_getspd(bs) * ((syncdelay > 1000) ? 1000 : syncdelay)) / 1000; minflush -= minflush % sndbuf_getalign(bs); if (minflush > 0) { threshold = min(minflush, sndbuf_getfree(bs)); sndbuf_clear(bs, threshold); sndbuf_acquire(bs, NULL, threshold); minflush -= threshold; } resid = sndbuf_getready(bs); residp = resid; blksz = sndbuf_getblksz(b); if (blksz < 1) { device_printf(c->dev, "%s(): WARNING: blksz < 1 ! maxsize=%d [%d/%d/%d]\n", __func__, sndbuf_getmaxsize(b), sndbuf_getsize(b), sndbuf_getblksz(b), sndbuf_getblkcnt(b)); if (sndbuf_getblkcnt(b) > 0) blksz = sndbuf_getsize(b) / sndbuf_getblkcnt(b); if (blksz < 1) blksz = 1; } count = sndbuf_xbytes(minflush + resid, bs, b) / blksz; hcount = count; ret = 0; if (snd_verbose > 3) device_printf(c->dev, "%s(): [begin] timeout=%d count=%d " "minflush=%d resid=%d\n", __func__, c->timeout, count, minflush, resid); cflag = c->flags & CHN_F_CLOSING; c->flags |= CHN_F_CLOSING; while (count > 0 && (resid > 0 || minflush > 0)) { ret = chn_sleep(c, c->timeout); if (ret == ERESTART || ret == EINTR) { c->flags |= CHN_F_ABORTING; break; } else if (ret == 0 || ret == EAGAIN) { resid = sndbuf_getready(bs); if (resid == residp) { --count; if (snd_verbose > 3) device_printf(c->dev, "%s(): [stalled] timeout=%d " "count=%d hcount=%d " "resid=%d minflush=%d\n", __func__, c->timeout, count, hcount, resid, minflush); } else if (resid < residp && count < hcount) { ++count; if (snd_verbose > 3) device_printf(c->dev, "%s((): [resume] timeout=%d " "count=%d hcount=%d " "resid=%d minflush=%d\n", __func__, c->timeout, count, hcount, resid, minflush); } if (minflush > 0 && sndbuf_getfree(bs) > 0) { threshold = min(minflush, sndbuf_getfree(bs)); sndbuf_clear(bs, threshold); sndbuf_acquire(bs, NULL, threshold); resid = sndbuf_getready(bs); minflush -= threshold; } residp = resid; } else break; } c->flags &= ~CHN_F_CLOSING; c->flags |= cflag; if (snd_verbose > 3) device_printf(c->dev, "%s(): timeout=%d count=%d hcount=%d resid=%d residp=%d " "minflush=%d ret=%d\n", __func__, c->timeout, count, hcount, resid, residp, minflush, ret); return (0); } /* called externally, handle locking */ int chn_poll(struct pcm_channel *c, int ev, struct thread *td) { struct snd_dbuf *bs = c->bufsoft; int ret; CHN_LOCKASSERT(c); if (!(c->flags & (CHN_F_MMAP | CHN_F_TRIGGERED))) { ret = chn_start(c, 1); if (ret != 0) return (0); } ret = 0; if (chn_polltrigger(c)) { chn_pollreset(c); ret = ev; } else selrecord(td, sndbuf_getsel(bs)); return (ret); } /* * chn_abort terminates a running dma transfer. it may sleep up to 200ms. * it returns the number of bytes that have not been transferred. * * called from: dsp_close, dsp_ioctl, with channel locked */ int chn_abort(struct pcm_channel *c) { int missing = 0; struct snd_dbuf *b = c->bufhard; struct snd_dbuf *bs = c->bufsoft; CHN_LOCKASSERT(c); if (CHN_STOPPED(c)) return 0; c->flags |= CHN_F_ABORTING; c->flags &= ~CHN_F_TRIGGERED; /* kill the channel */ chn_trigger(c, PCMTRIG_ABORT); sndbuf_setrun(b, 0); if (!(c->flags & CHN_F_VIRTUAL)) chn_dmaupdate(c); missing = sndbuf_getready(bs); c->flags &= ~CHN_F_ABORTING; return missing; } /* * this routine tries to flush the dma transfer. It is called * on a close of a playback channel. * first, if there is data in the buffer, but the dma has not yet * begun, we need to start it. * next, we wait for the play buffer to drain * finally, we stop the dma. * * called from: dsp_close, not valid for record channels. */ int chn_flush(struct pcm_channel *c) { struct snd_dbuf *b = c->bufhard; CHN_LOCKASSERT(c); KASSERT(c->direction == PCMDIR_PLAY, ("chn_flush on bad channel")); DEB(printf("chn_flush: c->flags 0x%08x\n", c->flags)); c->flags |= CHN_F_CLOSING; chn_sync(c, 0); c->flags &= ~CHN_F_TRIGGERED; /* kill the channel */ chn_trigger(c, PCMTRIG_ABORT); sndbuf_setrun(b, 0); c->flags &= ~CHN_F_CLOSING; return 0; } int snd_fmtvalid(uint32_t fmt, uint32_t *fmtlist) { int i; for (i = 0; fmtlist[i] != 0; i++) { if (fmt == fmtlist[i] || ((fmt & AFMT_PASSTHROUGH) && (AFMT_ENCODING(fmt) & fmtlist[i]))) return (1); } return (0); } static const struct { char *name, *alias1, *alias2; uint32_t afmt; } afmt_tab[] = { { "alaw", NULL, NULL, AFMT_A_LAW }, { "mulaw", NULL, NULL, AFMT_MU_LAW }, { "u8", "8", NULL, AFMT_U8 }, { "s8", NULL, NULL, AFMT_S8 }, #if BYTE_ORDER == LITTLE_ENDIAN { "s16le", "s16", "16", AFMT_S16_LE }, { "s16be", NULL, NULL, AFMT_S16_BE }, #else { "s16le", NULL, NULL, AFMT_S16_LE }, { "s16be", "s16", "16", AFMT_S16_BE }, #endif { "u16le", NULL, NULL, AFMT_U16_LE }, { "u16be", NULL, NULL, AFMT_U16_BE }, { "s24le", NULL, NULL, AFMT_S24_LE }, { "s24be", NULL, NULL, AFMT_S24_BE }, { "u24le", NULL, NULL, AFMT_U24_LE }, { "u24be", NULL, NULL, AFMT_U24_BE }, #if BYTE_ORDER == LITTLE_ENDIAN { "s32le", "s32", "32", AFMT_S32_LE }, { "s32be", NULL, NULL, AFMT_S32_BE }, #else { "s32le", NULL, NULL, AFMT_S32_LE }, { "s32be", "s32", "32", AFMT_S32_BE }, #endif { "u32le", NULL, NULL, AFMT_U32_LE }, { "u32be", NULL, NULL, AFMT_U32_BE }, { "ac3", NULL, NULL, AFMT_AC3 }, { NULL, NULL, NULL, 0 } }; -static const struct { - char *name, *alias1, *alias2; - int matrix_id; -} matrix_id_tab[] = { - { "1.0", "1", "mono", SND_CHN_MATRIX_1_0 }, - { "2.0", "2", "stereo", SND_CHN_MATRIX_2_0 }, - { "2.1", NULL, NULL, SND_CHN_MATRIX_2_1 }, - { "3.0", "3", NULL, SND_CHN_MATRIX_3_0 }, - { "3.1", NULL, NULL, SND_CHN_MATRIX_3_1 }, - { "4.0", "4", "quad", SND_CHN_MATRIX_4_0 }, - { "4.1", NULL, NULL, SND_CHN_MATRIX_4_1 }, - { "5.0", "5", NULL, SND_CHN_MATRIX_5_0 }, - { "5.1", "6", NULL, SND_CHN_MATRIX_5_1 }, - { "6.0", NULL, NULL, SND_CHN_MATRIX_6_0 }, - { "6.1", "7", NULL, SND_CHN_MATRIX_6_1 }, - { "7.0", NULL, NULL, SND_CHN_MATRIX_7_0 }, - { "7.1", "8", NULL, SND_CHN_MATRIX_7_1 }, - { NULL, NULL, NULL, SND_CHN_MATRIX_UNKNOWN } -}; - uint32_t snd_str2afmt(const char *req) { - uint32_t i, afmt; - int matrix_id; - char b1[8], b2[8]; + int ext; + int ch; + int i; + char b1[8]; + char b2[8]; + memset(b1, 0, sizeof(b1)); + memset(b2, 0, sizeof(b2)); + i = sscanf(req, "%5[^:]:%6s", b1, b2); if (i == 1) { if (strlen(req) != strlen(b1)) return (0); strlcpy(b2, "2.0", sizeof(b2)); } else if (i == 2) { if (strlen(req) != (strlen(b1) + 1 + strlen(b2))) return (0); } else return (0); - afmt = 0; - matrix_id = SND_CHN_MATRIX_UNKNOWN; + i = sscanf(b2, "%d.%d", &ch, &ext); - for (i = 0; afmt == 0 && afmt_tab[i].name != NULL; i++) { - if (strcasecmp(afmt_tab[i].name, b1) == 0 || - (afmt_tab[i].alias1 != NULL && - strcasecmp(afmt_tab[i].alias1, b1) == 0) || - (afmt_tab[i].alias2 != NULL && - strcasecmp(afmt_tab[i].alias2, b1) == 0)) { - afmt = afmt_tab[i].afmt; - strlcpy(b1, afmt_tab[i].name, sizeof(b1)); - } - } - - if (afmt == 0) + if (i == 0) { + if (strcasecmp(b2, "mono") == 0) { + ch = 1; + ext = 0; + } else if (strcasecmp(b2, "stereo") == 0) { + ch = 2; + ext = 0; + } else if (strcasecmp(b2, "quad") == 0) { + ch = 4; + ext = 0; + } else + return (0); + } else if (i == 1) { + if (ch < 1 || ch > AFMT_CHANNEL_MAX) + return (0); + ext = 0; + } else if (i == 2) { + if (ext < 0 || ext > AFMT_EXTCHANNEL_MAX) + return (0); + if (ch < 1 || (ch + ext) > AFMT_CHANNEL_MAX) + return (0); + } else return (0); - for (i = 0; matrix_id == SND_CHN_MATRIX_UNKNOWN && - matrix_id_tab[i].name != NULL; i++) { - if (strcmp(matrix_id_tab[i].name, b2) == 0 || - (matrix_id_tab[i].alias1 != NULL && - strcmp(matrix_id_tab[i].alias1, b2) == 0) || - (matrix_id_tab[i].alias2 != NULL && - strcasecmp(matrix_id_tab[i].alias2, b2) == 0)) { - matrix_id = matrix_id_tab[i].matrix_id; - strlcpy(b2, matrix_id_tab[i].name, sizeof(b2)); + for (i = 0; afmt_tab[i].name != NULL; i++) { + if (strcasecmp(afmt_tab[i].name, b1) != 0) { + if (afmt_tab[i].alias1 == NULL) + continue; + if (strcasecmp(afmt_tab[i].alias1, b1) != 0) { + if (afmt_tab[i].alias2 == NULL) + continue; + if (strcasecmp(afmt_tab[i].alias2, b1) != 0) + continue; + } } + /* found a match */ + return (SND_FORMAT(afmt_tab[i].afmt, ch + ext, ext)); } - - if (matrix_id == SND_CHN_MATRIX_UNKNOWN) - return (0); - -#ifndef _KERNEL - printf("Parse OK: '%s' -> '%s:%s' %d\n", req, b1, b2, - (int)(b2[0]) - '0' + (int)(b2[2]) - '0'); -#endif - - return (SND_FORMAT(afmt, b2[0] - '0' + b2[2] - '0', b2[2] - '0')); + /* not a valid format */ + return (0); } uint32_t snd_afmt2str(uint32_t afmt, char *buf, size_t len) { - uint32_t i, enc, ch, ext; - char tmp[AFMTSTR_LEN]; + uint32_t enc; + uint32_t ext; + uint32_t ch; + int i; if (buf == NULL || len < AFMTSTR_LEN) return (0); - - bzero(tmp, sizeof(tmp)); + memset(buf, 0, len); enc = AFMT_ENCODING(afmt); ch = AFMT_CHANNEL(afmt); ext = AFMT_EXTCHANNEL(afmt); - + /* check there is at least one channel */ + if (ch <= ext) + return (0); for (i = 0; afmt_tab[i].name != NULL; i++) { - if (enc == afmt_tab[i].afmt) { - strlcpy(tmp, afmt_tab[i].name, sizeof(tmp)); - strlcat(tmp, ":", sizeof(tmp)); - break; - } + if (enc != afmt_tab[i].afmt) + continue; + /* found a match */ + snprintf(buf, len, "%s:%d.%d", + afmt_tab[i].name, ch - ext, ext); + return (SND_FORMAT(enc, ch, ext)); } - - if (strlen(tmp) == 0) - return (0); - - for (i = 0; matrix_id_tab[i].name != NULL; i++) { - if (ch == (matrix_id_tab[i].name[0] - '0' + - matrix_id_tab[i].name[2] - '0') && - ext == (matrix_id_tab[i].name[2] - '0')) { - strlcat(tmp, matrix_id_tab[i].name, sizeof(tmp)); - break; - } - } - - if (strlen(tmp) == 0) - return (0); - - strlcpy(buf, tmp, len); - - return (snd_str2afmt(buf)); + return (0); } int chn_reset(struct pcm_channel *c, uint32_t fmt, uint32_t spd) { int r; CHN_LOCKASSERT(c); c->feedcount = 0; c->flags &= CHN_F_RESET; c->interrupts = 0; c->timeout = 1; c->xruns = 0; c->flags |= (pcm_getflags(c->dev) & SD_F_BITPERFECT) ? CHN_F_BITPERFECT : 0; r = CHANNEL_RESET(c->methods, c->devinfo); if (r == 0 && fmt != 0 && spd != 0) { r = chn_setparam(c, fmt, spd); fmt = 0; spd = 0; } if (r == 0 && fmt != 0) r = chn_setformat(c, fmt); if (r == 0 && spd != 0) r = chn_setspeed(c, spd); if (r == 0) r = chn_setlatency(c, chn_latency); if (r == 0) { chn_resetbuf(c); r = CHANNEL_RESETDONE(c->methods, c->devinfo); } return r; } int chn_init(struct pcm_channel *c, void *devinfo, int dir, int direction) { struct feeder_class *fc; struct snd_dbuf *b, *bs; int i, ret; if (chn_timeout < CHN_TIMEOUT_MIN || chn_timeout > CHN_TIMEOUT_MAX) chn_timeout = CHN_TIMEOUT; chn_lockinit(c, dir); b = NULL; bs = NULL; CHN_INIT(c, children); CHN_INIT(c, children.busy); c->devinfo = NULL; c->feeder = NULL; c->latency = -1; c->timeout = 1; ret = ENOMEM; b = sndbuf_create(c->dev, c->name, "primary", c); if (b == NULL) goto out; bs = sndbuf_create(c->dev, c->name, "secondary", c); if (bs == NULL) goto out; CHN_LOCK(c); ret = EINVAL; fc = feeder_getclass(NULL); if (fc == NULL) goto out; if (chn_addfeeder(c, fc, NULL)) goto out; /* * XXX - sndbuf_setup() & sndbuf_resize() expect to be called * with the channel unlocked because they are also called * from driver methods that don't know about locking */ CHN_UNLOCK(c); sndbuf_setup(bs, NULL, 0); CHN_LOCK(c); c->bufhard = b; c->bufsoft = bs; c->flags = 0; c->feederflags = 0; c->sm = NULL; c->format = SND_FORMAT(AFMT_U8, 1, 0); c->speed = DSP_DEFAULT_SPEED; c->matrix = *feeder_matrix_id_map(SND_CHN_MATRIX_1_0); c->matrix.id = SND_CHN_MATRIX_PCMCHANNEL; for (i = 0; i < SND_CHN_T_MAX; i++) { c->volume[SND_VOL_C_MASTER][i] = SND_VOL_0DB_MASTER; } c->volume[SND_VOL_C_MASTER][SND_CHN_T_VOL_0DB] = SND_VOL_0DB_MASTER; c->volume[SND_VOL_C_PCM][SND_CHN_T_VOL_0DB] = chn_vol_0db_pcm; chn_vpc_reset(c, SND_VOL_C_PCM, 1); ret = ENODEV; CHN_UNLOCK(c); /* XXX - Unlock for CHANNEL_INIT() malloc() call */ c->devinfo = CHANNEL_INIT(c->methods, devinfo, b, c, direction); CHN_LOCK(c); if (c->devinfo == NULL) goto out; ret = ENOMEM; if ((sndbuf_getsize(b) == 0) && ((c->flags & CHN_F_VIRTUAL) == 0)) goto out; ret = 0; c->direction = direction; sndbuf_setfmt(b, c->format); sndbuf_setspd(b, c->speed); sndbuf_setfmt(bs, c->format); sndbuf_setspd(bs, c->speed); /** * @todo Should this be moved somewhere else? The primary buffer * is allocated by the driver or via DMA map setup, and tmpbuf * seems to only come into existence in sndbuf_resize(). */ if (c->direction == PCMDIR_PLAY) { bs->sl = sndbuf_getmaxsize(bs); bs->shadbuf = malloc(bs->sl, M_DEVBUF, M_NOWAIT); if (bs->shadbuf == NULL) { ret = ENOMEM; goto out; } } out: CHN_UNLOCK(c); if (ret) { if (c->devinfo) { if (CHANNEL_FREE(c->methods, c->devinfo)) sndbuf_free(b); } if (bs) sndbuf_destroy(bs); if (b) sndbuf_destroy(b); CHN_LOCK(c); c->flags |= CHN_F_DEAD; chn_lockdestroy(c); return ret; } return 0; } int chn_kill(struct pcm_channel *c) { struct snd_dbuf *b = c->bufhard; struct snd_dbuf *bs = c->bufsoft; if (CHN_STARTED(c)) { CHN_LOCK(c); chn_trigger(c, PCMTRIG_ABORT); CHN_UNLOCK(c); } while (chn_removefeeder(c) == 0) ; if (CHANNEL_FREE(c->methods, c->devinfo)) sndbuf_free(b); sndbuf_destroy(bs); sndbuf_destroy(b); CHN_LOCK(c); c->flags |= CHN_F_DEAD; chn_lockdestroy(c); return (0); } /* XXX Obsolete. Use *_matrix() variant instead. */ int chn_setvolume(struct pcm_channel *c, int left, int right) { int ret; ret = chn_setvolume_matrix(c, SND_VOL_C_MASTER, SND_CHN_T_FL, left); ret |= chn_setvolume_matrix(c, SND_VOL_C_MASTER, SND_CHN_T_FR, right) << 8; return (ret); } int chn_setvolume_multi(struct pcm_channel *c, int vc, int left, int right, int center) { int i, ret; ret = 0; for (i = 0; i < SND_CHN_T_MAX; i++) { if ((1 << i) & SND_CHN_LEFT_MASK) ret |= chn_setvolume_matrix(c, vc, i, left); else if ((1 << i) & SND_CHN_RIGHT_MASK) ret |= chn_setvolume_matrix(c, vc, i, right) << 8; else ret |= chn_setvolume_matrix(c, vc, i, center) << 16; } return (ret); } int chn_setvolume_matrix(struct pcm_channel *c, int vc, int vt, int val) { int i; KASSERT(c != NULL && vc >= SND_VOL_C_MASTER && vc < SND_VOL_C_MAX && (vc == SND_VOL_C_MASTER || (vc & 1)) && (vt == SND_CHN_T_VOL_0DB || (vt >= SND_CHN_T_BEGIN && vt <= SND_CHN_T_END)) && (vt != SND_CHN_T_VOL_0DB || (val >= SND_VOL_0DB_MIN && val <= SND_VOL_0DB_MAX)), ("%s(): invalid volume matrix c=%p vc=%d vt=%d val=%d", __func__, c, vc, vt, val)); CHN_LOCKASSERT(c); if (val < 0) val = 0; if (val > 100) val = 100; c->volume[vc][vt] = val; /* * Do relative calculation here and store it into class + 1 * to ease the job of feeder_volume. */ if (vc == SND_VOL_C_MASTER) { for (vc = SND_VOL_C_BEGIN; vc <= SND_VOL_C_END; vc += SND_VOL_C_STEP) c->volume[SND_VOL_C_VAL(vc)][vt] = SND_VOL_CALC_VAL(c->volume, vc, vt); } else if (vc & 1) { if (vt == SND_CHN_T_VOL_0DB) for (i = SND_CHN_T_BEGIN; i <= SND_CHN_T_END; i += SND_CHN_T_STEP) { c->volume[SND_VOL_C_VAL(vc)][i] = SND_VOL_CALC_VAL(c->volume, vc, i); } else c->volume[SND_VOL_C_VAL(vc)][vt] = SND_VOL_CALC_VAL(c->volume, vc, vt); } return (val); } int chn_getvolume_matrix(struct pcm_channel *c, int vc, int vt) { KASSERT(c != NULL && vc >= SND_VOL_C_MASTER && vc < SND_VOL_C_MAX && (vt == SND_CHN_T_VOL_0DB || (vt >= SND_CHN_T_BEGIN && vt <= SND_CHN_T_END)), ("%s(): invalid volume matrix c=%p vc=%d vt=%d", __func__, c, vc, vt)); CHN_LOCKASSERT(c); return (c->volume[vc][vt]); } struct pcmchan_matrix * chn_getmatrix(struct pcm_channel *c) { KASSERT(c != NULL, ("%s(): NULL channel", __func__)); CHN_LOCKASSERT(c); if (!(c->format & AFMT_CONVERTIBLE)) return (NULL); return (&c->matrix); } int chn_setmatrix(struct pcm_channel *c, struct pcmchan_matrix *m) { KASSERT(c != NULL && m != NULL, ("%s(): NULL channel or matrix", __func__)); CHN_LOCKASSERT(c); if (!(c->format & AFMT_CONVERTIBLE)) return (EINVAL); c->matrix = *m; c->matrix.id = SND_CHN_MATRIX_PCMCHANNEL; return (chn_setformat(c, SND_FORMAT(c->format, m->channels, m->ext))); } /* * XXX chn_oss_* exists for the sake of compatibility. */ int chn_oss_getorder(struct pcm_channel *c, unsigned long long *map) { KASSERT(c != NULL && map != NULL, ("%s(): NULL channel or map", __func__)); CHN_LOCKASSERT(c); if (!(c->format & AFMT_CONVERTIBLE)) return (EINVAL); return (feeder_matrix_oss_get_channel_order(&c->matrix, map)); } int chn_oss_setorder(struct pcm_channel *c, unsigned long long *map) { struct pcmchan_matrix m; int ret; KASSERT(c != NULL && map != NULL, ("%s(): NULL channel or map", __func__)); CHN_LOCKASSERT(c); if (!(c->format & AFMT_CONVERTIBLE)) return (EINVAL); m = c->matrix; ret = feeder_matrix_oss_set_channel_order(&m, map); if (ret != 0) return (ret); return (chn_setmatrix(c, &m)); } #define SND_CHN_OSS_FRONT (SND_CHN_T_MASK_FL | SND_CHN_T_MASK_FR) #define SND_CHN_OSS_SURR (SND_CHN_T_MASK_SL | SND_CHN_T_MASK_SR) #define SND_CHN_OSS_CENTER_LFE (SND_CHN_T_MASK_FC | SND_CHN_T_MASK_LF) #define SND_CHN_OSS_REAR (SND_CHN_T_MASK_BL | SND_CHN_T_MASK_BR) int chn_oss_getmask(struct pcm_channel *c, uint32_t *retmask) { struct pcmchan_matrix *m; struct pcmchan_caps *caps; uint32_t i, format; KASSERT(c != NULL && retmask != NULL, ("%s(): NULL channel or retmask", __func__)); CHN_LOCKASSERT(c); caps = chn_getcaps(c); if (caps == NULL || caps->fmtlist == NULL) return (ENODEV); for (i = 0; caps->fmtlist[i] != 0; i++) { format = caps->fmtlist[i]; if (!(format & AFMT_CONVERTIBLE)) { *retmask |= DSP_BIND_SPDIF; continue; } m = CHANNEL_GETMATRIX(c->methods, c->devinfo, format); if (m == NULL) continue; if (m->mask & SND_CHN_OSS_FRONT) *retmask |= DSP_BIND_FRONT; if (m->mask & SND_CHN_OSS_SURR) *retmask |= DSP_BIND_SURR; if (m->mask & SND_CHN_OSS_CENTER_LFE) *retmask |= DSP_BIND_CENTER_LFE; if (m->mask & SND_CHN_OSS_REAR) *retmask |= DSP_BIND_REAR; } /* report software-supported binding mask */ if (!CHN_BITPERFECT(c) && report_soft_matrix) *retmask |= DSP_BIND_FRONT | DSP_BIND_SURR | DSP_BIND_CENTER_LFE | DSP_BIND_REAR; return (0); } void chn_vpc_reset(struct pcm_channel *c, int vc, int force) { int i; KASSERT(c != NULL && vc >= SND_VOL_C_BEGIN && vc <= SND_VOL_C_END, ("%s(): invalid reset c=%p vc=%d", __func__, c, vc)); CHN_LOCKASSERT(c); if (force == 0 && chn_vpc_autoreset == 0) return; for (i = SND_CHN_T_BEGIN; i <= SND_CHN_T_END; i += SND_CHN_T_STEP) CHN_SETVOLUME(c, vc, i, c->volume[vc][SND_CHN_T_VOL_0DB]); } static u_int32_t round_pow2(u_int32_t v) { u_int32_t ret; if (v < 2) v = 2; ret = 0; while (v >> ret) ret++; ret = 1 << (ret - 1); while (ret < v) ret <<= 1; return ret; } static u_int32_t round_blksz(u_int32_t v, int round) { u_int32_t ret, tmp; if (round < 1) round = 1; ret = min(round_pow2(v), CHN_2NDBUFMAXSIZE >> 1); if (ret > v && (ret >> 1) > 0 && (ret >> 1) >= ((v * 3) >> 2)) ret >>= 1; tmp = ret - (ret % round); while (tmp < 16 || tmp < round) { ret <<= 1; tmp = ret - (ret % round); } return ret; } /* * 4Front call it DSP Policy, while we call it "Latency Profile". The idea * is to keep 2nd buffer short so that it doesn't cause long queue during * buffer transfer. * * Latency reference table for 48khz stereo 16bit: (PLAY) * * +---------+------------+-----------+------------+ * | Latency | Blockcount | Blocksize | Buffersize | * +---------+------------+-----------+------------+ * | 0 | 2 | 64 | 128 | * +---------+------------+-----------+------------+ * | 1 | 4 | 128 | 512 | * +---------+------------+-----------+------------+ * | 2 | 8 | 512 | 4096 | * +---------+------------+-----------+------------+ * | 3 | 16 | 512 | 8192 | * +---------+------------+-----------+------------+ * | 4 | 32 | 512 | 16384 | * +---------+------------+-----------+------------+ * | 5 | 32 | 1024 | 32768 | * +---------+------------+-----------+------------+ * | 6 | 16 | 2048 | 32768 | * +---------+------------+-----------+------------+ * | 7 | 8 | 4096 | 32768 | * +---------+------------+-----------+------------+ * | 8 | 4 | 8192 | 32768 | * +---------+------------+-----------+------------+ * | 9 | 2 | 16384 | 32768 | * +---------+------------+-----------+------------+ * | 10 | 2 | 32768 | 65536 | * +---------+------------+-----------+------------+ * * Recording need a different reference table. All we care is * gobbling up everything within reasonable buffering threshold. * * Latency reference table for 48khz stereo 16bit: (REC) * * +---------+------------+-----------+------------+ * | Latency | Blockcount | Blocksize | Buffersize | * +---------+------------+-----------+------------+ * | 0 | 512 | 32 | 16384 | * +---------+------------+-----------+------------+ * | 1 | 256 | 64 | 16384 | * +---------+------------+-----------+------------+ * | 2 | 128 | 128 | 16384 | * +---------+------------+-----------+------------+ * | 3 | 64 | 256 | 16384 | * +---------+------------+-----------+------------+ * | 4 | 32 | 512 | 16384 | * +---------+------------+-----------+------------+ * | 5 | 32 | 1024 | 32768 | * +---------+------------+-----------+------------+ * | 6 | 16 | 2048 | 32768 | * +---------+------------+-----------+------------+ * | 7 | 8 | 4096 | 32768 | * +---------+------------+-----------+------------+ * | 8 | 4 | 8192 | 32768 | * +---------+------------+-----------+------------+ * | 9 | 2 | 16384 | 32768 | * +---------+------------+-----------+------------+ * | 10 | 2 | 32768 | 65536 | * +---------+------------+-----------+------------+ * * Calculations for other data rate are entirely based on these reference * tables. For normal operation, Latency 5 seems give the best, well * balanced performance for typical workload. Anything below 5 will * eat up CPU to keep up with increasing context switches because of * shorter buffer space and usually require the application to handle it * aggresively through possibly real time programming technique. * */ #define CHN_LATENCY_PBLKCNT_REF \ {{1, 2, 3, 4, 5, 5, 4, 3, 2, 1, 1}, \ {1, 2, 3, 4, 5, 5, 4, 3, 2, 1, 1}} #define CHN_LATENCY_PBUFSZ_REF \ {{7, 9, 12, 13, 14, 15, 15, 15, 15, 15, 16}, \ {11, 12, 13, 14, 15, 16, 16, 16, 16, 16, 17}} #define CHN_LATENCY_RBLKCNT_REF \ {{9, 8, 7, 6, 5, 5, 4, 3, 2, 1, 1}, \ {9, 8, 7, 6, 5, 5, 4, 3, 2, 1, 1}} #define CHN_LATENCY_RBUFSZ_REF \ {{14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 16}, \ {15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 17}} #define CHN_LATENCY_DATA_REF 192000 /* 48khz stereo 16bit ~ 48000 x 2 x 2 */ static int chn_calclatency(int dir, int latency, int bps, u_int32_t datarate, u_int32_t max, int *rblksz, int *rblkcnt) { static int pblkcnts[CHN_LATENCY_PROFILE_MAX + 1][CHN_LATENCY_MAX + 1] = CHN_LATENCY_PBLKCNT_REF; static int pbufszs[CHN_LATENCY_PROFILE_MAX + 1][CHN_LATENCY_MAX + 1] = CHN_LATENCY_PBUFSZ_REF; static int rblkcnts[CHN_LATENCY_PROFILE_MAX + 1][CHN_LATENCY_MAX + 1] = CHN_LATENCY_RBLKCNT_REF; static int rbufszs[CHN_LATENCY_PROFILE_MAX + 1][CHN_LATENCY_MAX + 1] = CHN_LATENCY_RBUFSZ_REF; u_int32_t bufsz; int lprofile, blksz, blkcnt; if (latency < CHN_LATENCY_MIN || latency > CHN_LATENCY_MAX || bps < 1 || datarate < 1 || !(dir == PCMDIR_PLAY || dir == PCMDIR_REC)) { if (rblksz != NULL) *rblksz = CHN_2NDBUFMAXSIZE >> 1; if (rblkcnt != NULL) *rblkcnt = 2; printf("%s(): FAILED dir=%d latency=%d bps=%d " "datarate=%u max=%u\n", __func__, dir, latency, bps, datarate, max); return CHN_2NDBUFMAXSIZE; } lprofile = chn_latency_profile; if (dir == PCMDIR_PLAY) { blkcnt = pblkcnts[lprofile][latency]; bufsz = pbufszs[lprofile][latency]; } else { blkcnt = rblkcnts[lprofile][latency]; bufsz = rbufszs[lprofile][latency]; } bufsz = round_pow2(snd_xbytes(1 << bufsz, CHN_LATENCY_DATA_REF, datarate)); if (bufsz > max) bufsz = max; blksz = round_blksz(bufsz >> blkcnt, bps); if (rblksz != NULL) *rblksz = blksz; if (rblkcnt != NULL) *rblkcnt = 1 << blkcnt; return blksz << blkcnt; } static int chn_resizebuf(struct pcm_channel *c, int latency, int blkcnt, int blksz) { struct snd_dbuf *b, *bs, *pb; int sblksz, sblkcnt, hblksz, hblkcnt, limit = 0, nsblksz, nsblkcnt; int ret; CHN_LOCKASSERT(c); if ((c->flags & (CHN_F_MMAP | CHN_F_TRIGGERED)) || !(c->direction == PCMDIR_PLAY || c->direction == PCMDIR_REC)) return EINVAL; if (latency == -1) { c->latency = -1; latency = chn_latency; } else if (latency == -2) { latency = c->latency; if (latency < CHN_LATENCY_MIN || latency > CHN_LATENCY_MAX) latency = chn_latency; } else if (latency < CHN_LATENCY_MIN || latency > CHN_LATENCY_MAX) return EINVAL; else { c->latency = latency; } bs = c->bufsoft; b = c->bufhard; if (!(blksz == 0 || blkcnt == -1) && (blksz < 16 || blksz < sndbuf_getalign(bs) || blkcnt < 2 || (blksz * blkcnt) > CHN_2NDBUFMAXSIZE)) return EINVAL; chn_calclatency(c->direction, latency, sndbuf_getalign(bs), sndbuf_getalign(bs) * sndbuf_getspd(bs), CHN_2NDBUFMAXSIZE, &sblksz, &sblkcnt); if (blksz == 0 || blkcnt == -1) { if (blkcnt == -1) c->flags &= ~CHN_F_HAS_SIZE; if (c->flags & CHN_F_HAS_SIZE) { blksz = sndbuf_getblksz(bs); blkcnt = sndbuf_getblkcnt(bs); } } else c->flags |= CHN_F_HAS_SIZE; if (c->flags & CHN_F_HAS_SIZE) { /* * The application has requested their own blksz/blkcnt. * Just obey with it, and let them toast alone. We can * clamp it to the nearest latency profile, but that would * defeat the purpose of having custom control. The least * we can do is round it to the nearest ^2 and align it. */ sblksz = round_blksz(blksz, sndbuf_getalign(bs)); sblkcnt = round_pow2(blkcnt); } if (c->parentchannel != NULL) { pb = c->parentchannel->bufsoft; CHN_UNLOCK(c); CHN_LOCK(c->parentchannel); chn_notify(c->parentchannel, CHN_N_BLOCKSIZE); CHN_UNLOCK(c->parentchannel); CHN_LOCK(c); if (c->direction == PCMDIR_PLAY) { limit = (pb != NULL) ? sndbuf_xbytes(sndbuf_getsize(pb), pb, bs) : 0; } else { limit = (pb != NULL) ? sndbuf_xbytes(sndbuf_getblksz(pb), pb, bs) * 2 : 0; } } else { hblkcnt = 2; if (c->flags & CHN_F_HAS_SIZE) { hblksz = round_blksz(sndbuf_xbytes(sblksz, bs, b), sndbuf_getalign(b)); hblkcnt = round_pow2(sndbuf_getblkcnt(bs)); } else chn_calclatency(c->direction, latency, sndbuf_getalign(b), sndbuf_getalign(b) * sndbuf_getspd(b), CHN_2NDBUFMAXSIZE, &hblksz, &hblkcnt); if ((hblksz << 1) > sndbuf_getmaxsize(b)) hblksz = round_blksz(sndbuf_getmaxsize(b) >> 1, sndbuf_getalign(b)); while ((hblksz * hblkcnt) > sndbuf_getmaxsize(b)) { if (hblkcnt < 4) hblksz >>= 1; else hblkcnt >>= 1; } hblksz -= hblksz % sndbuf_getalign(b); #if 0 hblksz = sndbuf_getmaxsize(b) >> 1; hblksz -= hblksz % sndbuf_getalign(b); hblkcnt = 2; #endif CHN_UNLOCK(c); if (chn_usefrags == 0 || CHANNEL_SETFRAGMENTS(c->methods, c->devinfo, hblksz, hblkcnt) != 0) sndbuf_setblksz(b, CHANNEL_SETBLOCKSIZE(c->methods, c->devinfo, hblksz)); CHN_LOCK(c); if (!CHN_EMPTY(c, children)) { nsblksz = round_blksz( sndbuf_xbytes(sndbuf_getblksz(b), b, bs), sndbuf_getalign(bs)); nsblkcnt = sndbuf_getblkcnt(b); if (c->direction == PCMDIR_PLAY) { do { nsblkcnt--; } while (nsblkcnt >= 2 && nsblksz * nsblkcnt >= sblksz * sblkcnt); nsblkcnt++; } sblksz = nsblksz; sblkcnt = nsblkcnt; limit = 0; } else limit = sndbuf_xbytes(sndbuf_getblksz(b), b, bs) * 2; } if (limit > CHN_2NDBUFMAXSIZE) limit = CHN_2NDBUFMAXSIZE; #if 0 while (limit > 0 && (sblksz * sblkcnt) > limit) { if (sblkcnt < 4) break; sblkcnt >>= 1; } #endif while ((sblksz * sblkcnt) < limit) sblkcnt <<= 1; while ((sblksz * sblkcnt) > CHN_2NDBUFMAXSIZE) { if (sblkcnt < 4) sblksz >>= 1; else sblkcnt >>= 1; } sblksz -= sblksz % sndbuf_getalign(bs); if (sndbuf_getblkcnt(bs) != sblkcnt || sndbuf_getblksz(bs) != sblksz || sndbuf_getsize(bs) != (sblkcnt * sblksz)) { ret = sndbuf_remalloc(bs, sblkcnt, sblksz); if (ret != 0) { device_printf(c->dev, "%s(): Failed: %d %d\n", __func__, sblkcnt, sblksz); return ret; } } /* * Interrupt timeout */ c->timeout = ((u_int64_t)hz * sndbuf_getsize(bs)) / ((u_int64_t)sndbuf_getspd(bs) * sndbuf_getalign(bs)); if (c->parentchannel != NULL) c->timeout = min(c->timeout, c->parentchannel->timeout); if (c->timeout < 1) c->timeout = 1; /* * OSSv4 docs: "By default OSS will set the low water level equal * to the fragment size which is optimal in most cases." */ c->lw = sndbuf_getblksz(bs); chn_resetbuf(c); if (snd_verbose > 3) device_printf(c->dev, "%s(): %s (%s) timeout=%u " "b[%d/%d/%d] bs[%d/%d/%d] limit=%d\n", __func__, CHN_DIRSTR(c), (c->flags & CHN_F_VIRTUAL) ? "virtual" : "hardware", c->timeout, sndbuf_getsize(b), sndbuf_getblksz(b), sndbuf_getblkcnt(b), sndbuf_getsize(bs), sndbuf_getblksz(bs), sndbuf_getblkcnt(bs), limit); return 0; } int chn_setlatency(struct pcm_channel *c, int latency) { CHN_LOCKASSERT(c); /* Destroy blksz/blkcnt, enforce latency profile. */ return chn_resizebuf(c, latency, -1, 0); } int chn_setblocksize(struct pcm_channel *c, int blkcnt, int blksz) { CHN_LOCKASSERT(c); /* Destroy latency profile, enforce blksz/blkcnt */ return chn_resizebuf(c, -1, blkcnt, blksz); } int chn_setparam(struct pcm_channel *c, uint32_t format, uint32_t speed) { struct pcmchan_caps *caps; uint32_t hwspeed, delta; int ret; CHN_LOCKASSERT(c); if (speed < 1 || format == 0 || CHN_STARTED(c)) return (EINVAL); c->format = format; c->speed = speed; caps = chn_getcaps(c); hwspeed = speed; RANGE(hwspeed, caps->minspeed, caps->maxspeed); sndbuf_setspd(c->bufhard, CHANNEL_SETSPEED(c->methods, c->devinfo, hwspeed)); hwspeed = sndbuf_getspd(c->bufhard); delta = (hwspeed > speed) ? (hwspeed - speed) : (speed - hwspeed); if (delta <= feeder_rate_round) c->speed = hwspeed; ret = feeder_chain(c); if (ret == 0) ret = CHANNEL_SETFORMAT(c->methods, c->devinfo, sndbuf_getfmt(c->bufhard)); if (ret == 0) ret = chn_resizebuf(c, -2, 0, 0); return (ret); } int chn_setspeed(struct pcm_channel *c, uint32_t speed) { uint32_t oldformat, oldspeed, format; int ret; #if 0 /* XXX force 48k */ if (c->format & AFMT_PASSTHROUGH) speed = AFMT_PASSTHROUGH_RATE; #endif oldformat = c->format; oldspeed = c->speed; format = oldformat; ret = chn_setparam(c, format, speed); if (ret != 0) { if (snd_verbose > 3) device_printf(c->dev, "%s(): Setting speed %d failed, " "falling back to %d\n", __func__, speed, oldspeed); chn_setparam(c, c->format, oldspeed); } return (ret); } int chn_setformat(struct pcm_channel *c, uint32_t format) { uint32_t oldformat, oldspeed, speed; int ret; /* XXX force stereo */ if ((format & AFMT_PASSTHROUGH) && AFMT_CHANNEL(format) < 2) { format = SND_FORMAT(format, AFMT_PASSTHROUGH_CHANNEL, AFMT_PASSTHROUGH_EXTCHANNEL); } oldformat = c->format; oldspeed = c->speed; speed = oldspeed; ret = chn_setparam(c, format, speed); if (ret != 0) { if (snd_verbose > 3) device_printf(c->dev, "%s(): Format change 0x%08x failed, " "falling back to 0x%08x\n", __func__, format, oldformat); chn_setparam(c, oldformat, oldspeed); } return (ret); } void chn_syncstate(struct pcm_channel *c) { struct snddev_info *d; struct snd_mixer *m; d = (c != NULL) ? c->parentsnddev : NULL; m = (d != NULL && d->mixer_dev != NULL) ? d->mixer_dev->si_drv1 : NULL; if (d == NULL || m == NULL) return; CHN_LOCKASSERT(c); if (c->feederflags & (1 << FEEDER_VOLUME)) { uint32_t parent; int vol, pvol, left, right, center; if (c->direction == PCMDIR_PLAY && (d->flags & SD_F_SOFTPCMVOL)) { /* CHN_UNLOCK(c); */ vol = mix_get(m, SOUND_MIXER_PCM); parent = mix_getparent(m, SOUND_MIXER_PCM); if (parent != SOUND_MIXER_NONE) pvol = mix_get(m, parent); else pvol = 100 | (100 << 8); /* CHN_LOCK(c); */ } else { vol = 100 | (100 << 8); pvol = vol; } if (vol == -1) { device_printf(c->dev, "Soft PCM Volume: Failed to read pcm " "default value\n"); vol = 100 | (100 << 8); } if (pvol == -1) { device_printf(c->dev, "Soft PCM Volume: Failed to read parent " "default value\n"); pvol = 100 | (100 << 8); } left = ((vol & 0x7f) * (pvol & 0x7f)) / 100; right = (((vol >> 8) & 0x7f) * ((pvol >> 8) & 0x7f)) / 100; center = (left + right) >> 1; chn_setvolume_multi(c, SND_VOL_C_MASTER, left, right, center); } if (c->feederflags & (1 << FEEDER_EQ)) { struct pcm_feeder *f; int treble, bass, state; /* CHN_UNLOCK(c); */ treble = mix_get(m, SOUND_MIXER_TREBLE); bass = mix_get(m, SOUND_MIXER_BASS); /* CHN_LOCK(c); */ if (treble == -1) treble = 50; else treble = ((treble & 0x7f) + ((treble >> 8) & 0x7f)) >> 1; if (bass == -1) bass = 50; else bass = ((bass & 0x7f) + ((bass >> 8) & 0x7f)) >> 1; f = chn_findfeeder(c, FEEDER_EQ); if (f != NULL) { if (FEEDER_SET(f, FEEDEQ_TREBLE, treble) != 0) device_printf(c->dev, "EQ: Failed to set treble -- %d\n", treble); if (FEEDER_SET(f, FEEDEQ_BASS, bass) != 0) device_printf(c->dev, "EQ: Failed to set bass -- %d\n", bass); if (FEEDER_SET(f, FEEDEQ_PREAMP, d->eqpreamp) != 0) device_printf(c->dev, "EQ: Failed to set preamp -- %d\n", d->eqpreamp); if (d->flags & SD_F_EQ_BYPASSED) state = FEEDEQ_BYPASS; else if (d->flags & SD_F_EQ_ENABLED) state = FEEDEQ_ENABLE; else state = FEEDEQ_DISABLE; if (FEEDER_SET(f, FEEDEQ_STATE, state) != 0) device_printf(c->dev, "EQ: Failed to set state -- %d\n", state); } } } int chn_trigger(struct pcm_channel *c, int go) { #ifdef DEV_ISA struct snd_dbuf *b = c->bufhard; #endif struct snddev_info *d = c->parentsnddev; int ret; CHN_LOCKASSERT(c); #ifdef DEV_ISA if (SND_DMA(b) && (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD)) sndbuf_dmabounce(b); #endif if (!PCMTRIG_COMMON(go)) return (CHANNEL_TRIGGER(c->methods, c->devinfo, go)); if (go == c->trigger) return (0); ret = CHANNEL_TRIGGER(c->methods, c->devinfo, go); if (ret != 0) return (ret); switch (go) { case PCMTRIG_START: if (snd_verbose > 3) device_printf(c->dev, "%s() %s: calling go=0x%08x , " "prev=0x%08x\n", __func__, c->name, go, c->trigger); if (c->trigger != PCMTRIG_START) { c->trigger = go; CHN_UNLOCK(c); PCM_LOCK(d); CHN_INSERT_HEAD(d, c, channels.pcm.busy); PCM_UNLOCK(d); CHN_LOCK(c); chn_syncstate(c); } break; case PCMTRIG_STOP: case PCMTRIG_ABORT: if (snd_verbose > 3) device_printf(c->dev, "%s() %s: calling go=0x%08x , " "prev=0x%08x\n", __func__, c->name, go, c->trigger); if (c->trigger == PCMTRIG_START) { c->trigger = go; CHN_UNLOCK(c); PCM_LOCK(d); CHN_REMOVE(d, c, channels.pcm.busy); PCM_UNLOCK(d); CHN_LOCK(c); } break; default: break; } return (0); } /** * @brief Queries sound driver for sample-aligned hardware buffer pointer index * * This function obtains the hardware pointer location, then aligns it to * the current bytes-per-sample value before returning. (E.g., a channel * running in 16 bit stereo mode would require 4 bytes per sample, so a * hwptr value ranging from 32-35 would be returned as 32.) * * @param c PCM channel context * @returns sample-aligned hardware buffer pointer index */ int chn_getptr(struct pcm_channel *c) { int hwptr; CHN_LOCKASSERT(c); hwptr = (CHN_STARTED(c)) ? CHANNEL_GETPTR(c->methods, c->devinfo) : 0; return (hwptr - (hwptr % sndbuf_getalign(c->bufhard))); } struct pcmchan_caps * chn_getcaps(struct pcm_channel *c) { CHN_LOCKASSERT(c); return CHANNEL_GETCAPS(c->methods, c->devinfo); } u_int32_t chn_getformats(struct pcm_channel *c) { u_int32_t *fmtlist, fmts; int i; fmtlist = chn_getcaps(c)->fmtlist; fmts = 0; for (i = 0; fmtlist[i]; i++) fmts |= fmtlist[i]; /* report software-supported formats */ if (!CHN_BITPERFECT(c) && report_soft_formats) fmts |= AFMT_CONVERTIBLE; return (AFMT_ENCODING(fmts)); } int chn_notify(struct pcm_channel *c, u_int32_t flags) { struct pcm_channel *ch; struct pcmchan_caps *caps; uint32_t bestformat, bestspeed, besthwformat, *vchanformat, *vchanrate; uint32_t vpflags; int dirty, err, run, nrun; CHN_LOCKASSERT(c); if (CHN_EMPTY(c, children)) return (ENODEV); err = 0; /* * If the hwchan is running, we can't change its rate, format or * blocksize */ run = (CHN_STARTED(c)) ? 1 : 0; if (run) flags &= CHN_N_VOLUME | CHN_N_TRIGGER; if (flags & CHN_N_RATE) { /* * XXX I'll make good use of this someday. * However this is currently being superseded by * the availability of CHN_F_VCHAN_DYNAMIC. */ } if (flags & CHN_N_FORMAT) { /* * XXX I'll make good use of this someday. * However this is currently being superseded by * the availability of CHN_F_VCHAN_DYNAMIC. */ } if (flags & CHN_N_VOLUME) { /* * XXX I'll make good use of this someday, though * soft volume control is currently pretty much * integrated. */ } if (flags & CHN_N_BLOCKSIZE) { /* * Set to default latency profile */ chn_setlatency(c, chn_latency); } if ((flags & CHN_N_TRIGGER) && !(c->flags & CHN_F_VCHAN_DYNAMIC)) { nrun = CHN_EMPTY(c, children.busy) ? 0 : 1; if (nrun && !run) err = chn_start(c, 1); if (!nrun && run) chn_abort(c); flags &= ~CHN_N_TRIGGER; } if (flags & CHN_N_TRIGGER) { if (c->direction == PCMDIR_PLAY) { vchanformat = &c->parentsnddev->pvchanformat; vchanrate = &c->parentsnddev->pvchanrate; } else { vchanformat = &c->parentsnddev->rvchanformat; vchanrate = &c->parentsnddev->rvchanrate; } /* Dynamic Virtual Channel */ if (!(c->flags & CHN_F_VCHAN_ADAPTIVE)) { bestformat = *vchanformat; bestspeed = *vchanrate; } else { bestformat = 0; bestspeed = 0; } besthwformat = 0; nrun = 0; caps = chn_getcaps(c); dirty = 0; vpflags = 0; CHN_FOREACH(ch, c, children.busy) { CHN_LOCK(ch); if ((ch->format & AFMT_PASSTHROUGH) && snd_fmtvalid(ch->format, caps->fmtlist)) { bestformat = ch->format; bestspeed = ch->speed; CHN_UNLOCK(ch); vpflags = CHN_F_PASSTHROUGH; nrun++; break; } if ((ch->flags & CHN_F_EXCLUSIVE) && vpflags == 0) { if (c->flags & CHN_F_VCHAN_ADAPTIVE) { bestspeed = ch->speed; RANGE(bestspeed, caps->minspeed, caps->maxspeed); besthwformat = snd_fmtbest(ch->format, caps->fmtlist); if (besthwformat != 0) bestformat = besthwformat; } CHN_UNLOCK(ch); vpflags = CHN_F_EXCLUSIVE; nrun++; continue; } if (!(c->flags & CHN_F_VCHAN_ADAPTIVE) || vpflags != 0) { CHN_UNLOCK(ch); nrun++; continue; } if (ch->speed > bestspeed) { bestspeed = ch->speed; RANGE(bestspeed, caps->minspeed, caps->maxspeed); } besthwformat = snd_fmtbest(ch->format, caps->fmtlist); if (!(besthwformat & AFMT_VCHAN)) { CHN_UNLOCK(ch); nrun++; continue; } if (AFMT_CHANNEL(besthwformat) > AFMT_CHANNEL(bestformat)) bestformat = besthwformat; else if (AFMT_CHANNEL(besthwformat) == AFMT_CHANNEL(bestformat) && AFMT_BIT(besthwformat) > AFMT_BIT(bestformat)) bestformat = besthwformat; CHN_UNLOCK(ch); nrun++; } if (bestformat == 0) bestformat = c->format; if (bestspeed == 0) bestspeed = c->speed; if (bestformat != c->format || bestspeed != c->speed) dirty = 1; c->flags &= ~(CHN_F_PASSTHROUGH | CHN_F_EXCLUSIVE); c->flags |= vpflags; if (nrun && !run) { if (dirty) { bestspeed = CHANNEL_SETSPEED(c->methods, c->devinfo, bestspeed); err = chn_reset(c, bestformat, bestspeed); } if (err == 0 && dirty) { CHN_FOREACH(ch, c, children.busy) { CHN_LOCK(ch); if (VCHAN_SYNC_REQUIRED(ch)) vchan_sync(ch); CHN_UNLOCK(ch); } } if (err == 0) { if (dirty) c->flags |= CHN_F_DIRTY; err = chn_start(c, 1); } } if (nrun && run && dirty) { chn_abort(c); bestspeed = CHANNEL_SETSPEED(c->methods, c->devinfo, bestspeed); err = chn_reset(c, bestformat, bestspeed); if (err == 0) { CHN_FOREACH(ch, c, children.busy) { CHN_LOCK(ch); if (VCHAN_SYNC_REQUIRED(ch)) vchan_sync(ch); CHN_UNLOCK(ch); } } if (err == 0) { c->flags |= CHN_F_DIRTY; err = chn_start(c, 1); } } if (err == 0 && !(bestformat & AFMT_PASSTHROUGH) && (bestformat & AFMT_VCHAN)) { *vchanformat = bestformat; *vchanrate = bestspeed; } if (!nrun && run) { c->flags &= ~(CHN_F_PASSTHROUGH | CHN_F_EXCLUSIVE); bestformat = *vchanformat; bestspeed = *vchanrate; chn_abort(c); if (c->format != bestformat || c->speed != bestspeed) chn_reset(c, bestformat, bestspeed); } } return (err); } /** * @brief Fetch array of supported discrete sample rates * * Wrapper for CHANNEL_GETRATES. Please see channel_if.m:getrates() for * detailed information. * * @note If the operation isn't supported, this function will just return 0 * (no rates in the array), and *rates will be set to NULL. Callers * should examine rates @b only if this function returns non-zero. * * @param c pcm channel to examine * @param rates pointer to array of integers; rate table will be recorded here * * @return number of rates in the array pointed to be @c rates */ int chn_getrates(struct pcm_channel *c, int **rates) { KASSERT(rates != NULL, ("rates is null")); CHN_LOCKASSERT(c); return CHANNEL_GETRATES(c->methods, c->devinfo, rates); } /** * @brief Remove channel from a sync group, if there is one. * * This function is initially intended for the following conditions: * - Starting a syncgroup (@c SNDCTL_DSP_SYNCSTART ioctl) * - Closing a device. (A channel can't be destroyed if it's still in use.) * * @note Before calling this function, the syncgroup list mutex must be * held. (Consider pcm_channel::sm protected by the SG list mutex * whether @c c is locked or not.) * * @param c channel device to be started or closed * @returns If this channel was the only member of a group, the group ID * is returned to the caller so that the caller can release it * via free_unr() after giving up the syncgroup lock. Else it * returns 0. */ int chn_syncdestroy(struct pcm_channel *c) { struct pcmchan_syncmember *sm; struct pcmchan_syncgroup *sg; int sg_id; sg_id = 0; PCM_SG_LOCKASSERT(MA_OWNED); if (c->sm != NULL) { sm = c->sm; sg = sm->parent; c->sm = NULL; KASSERT(sg != NULL, ("syncmember has null parent")); SLIST_REMOVE(&sg->members, sm, pcmchan_syncmember, link); free(sm, M_DEVBUF); if (SLIST_EMPTY(&sg->members)) { SLIST_REMOVE(&snd_pcm_syncgroups, sg, pcmchan_syncgroup, link); sg_id = sg->id; free(sg, M_DEVBUF); } } return sg_id; } #ifdef OSSV4_EXPERIMENT int chn_getpeaks(struct pcm_channel *c, int *lpeak, int *rpeak) { CHN_LOCKASSERT(c); return CHANNEL_GETPEAKS(c->methods, c->devinfo, lpeak, rpeak); } #endif Index: head/sys/dev/sound/pcm/channel.h =================================================================== --- head/sys/dev/sound/pcm/channel.h (revision 282649) +++ head/sys/dev/sound/pcm/channel.h (revision 282650) @@ -1,444 +1,445 @@ /*- * Copyright (c) 2005-2009 Ariff Abdullah * Portions Copyright (c) Ryan Beasley - GSoC 2006 * Copyright (c) 1999 Cameron Grant * 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. * * $FreeBSD$ */ struct pcmchan_caps { u_int32_t minspeed, maxspeed; u_int32_t *fmtlist; u_int32_t caps; }; struct pcmchan_matrix { int id; uint8_t channels, ext; struct { int type; uint32_t members; } map[SND_CHN_T_MAX + 1]; uint32_t mask; int8_t offset[SND_CHN_T_MAX]; }; /* Forward declarations */ struct pcm_channel; struct pcmchan_syncgroup; struct pcmchan_syncmember; extern struct mtx snd_pcm_syncgroups_mtx; extern SLIST_HEAD(pcm_synclist, pcmchan_syncgroup) snd_pcm_syncgroups; #define PCM_SG_LOCK() mtx_lock(&snd_pcm_syncgroups_mtx) #define PCM_SG_TRYLOCK() mtx_trylock(&snd_pcm_syncgroups_mtx) #define PCM_SG_UNLOCK() mtx_unlock(&snd_pcm_syncgroups_mtx) #define PCM_SG_LOCKASSERT(arg) mtx_assert(&snd_pcm_syncgroups_mtx, arg) /** * @brief Specifies an audio device sync group */ struct pcmchan_syncgroup { SLIST_ENTRY(pcmchan_syncgroup) link; SLIST_HEAD(, pcmchan_syncmember) members; int id; /**< Group identifier; set to address of group. */ }; /** * @brief Specifies a container for members of a sync group */ struct pcmchan_syncmember { SLIST_ENTRY(pcmchan_syncmember) link; struct pcmchan_syncgroup *parent; /**< group head */ struct pcm_channel *ch; }; #define CHN_NAMELEN 32 #define CHN_COMM_UNUSED "" #define CHN_COMM_UNKNOWN "" struct pcm_channel { kobj_t methods; pid_t pid; int refcount; struct pcm_feeder *feeder; u_int32_t align; int latency; u_int32_t speed; u_int32_t format; u_int32_t flags; u_int32_t feederflags; u_int64_t blocks; int direction; unsigned int interrupts, xruns, feedcount; unsigned int timeout; struct snd_dbuf *bufhard, *bufsoft; struct snddev_info *parentsnddev; struct pcm_channel *parentchannel; void *devinfo; device_t dev; int unit; char name[CHN_NAMELEN]; char comm[MAXCOMLEN + 1]; struct mtx *lock; int trigger; /** * For interrupt manipulations. */ struct cv intr_cv; /** * Increment,decrement this around operations that temporarily yield * lock. */ unsigned int inprog; /** * Special channel operations should examine @c inprog after acquiring * lock. If zero, operations may continue. Else, thread should * wait on this cv for previous operation to finish. */ struct cv cv; /** * Low water mark for select()/poll(). * * This is initialized to the channel's fragment size, and will be * overwritten if a new fragment size is set. Users may alter this * value directly with the @c SNDCTL_DSP_LOW_WATER ioctl. */ unsigned int lw; /** * If part of a sync group, this will point to the syncmember * container. */ struct pcmchan_syncmember *sm; #ifdef OSSV4_EXPERIMENT u_int16_t lpeak, rpeak; /**< Peak value from 0-32767. */ #endif struct { SLIST_HEAD(, pcm_channel) head; SLIST_ENTRY(pcm_channel) link; struct { SLIST_HEAD(, pcm_channel) head; SLIST_ENTRY(pcm_channel) link; } busy; } children; struct { struct { SLIST_ENTRY(pcm_channel) link; struct { SLIST_ENTRY(pcm_channel) link; } busy; struct { SLIST_ENTRY(pcm_channel) link; } opened; } pcm; } channels; struct pcmchan_matrix matrix; + struct pcmchan_matrix matrix_scratch; int volume[SND_VOL_C_MAX][SND_CHN_T_VOL_MAX]; void *data1, *data2; }; #define CHN_HEAD(x, y) &(x)->y.head #define CHN_INIT(x, y) SLIST_INIT(CHN_HEAD(x, y)) #define CHN_LINK(y) y.link #define CHN_EMPTY(x, y) SLIST_EMPTY(CHN_HEAD(x, y)) #define CHN_FIRST(x, y) SLIST_FIRST(CHN_HEAD(x, y)) #define CHN_FOREACH(x, y, z) \ SLIST_FOREACH(x, CHN_HEAD(y, z), CHN_LINK(z)) #define CHN_FOREACH_SAFE(w, x, y, z) \ SLIST_FOREACH_SAFE(w, CHN_HEAD(x, z), CHN_LINK(z), y) #define CHN_INSERT_HEAD(x, y, z) \ SLIST_INSERT_HEAD(CHN_HEAD(x, z), y, CHN_LINK(z)) #define CHN_INSERT_AFTER(x, y, z) \ SLIST_INSERT_AFTER(x, y, CHN_LINK(z)) #define CHN_REMOVE(x, y, z) \ SLIST_REMOVE(CHN_HEAD(x, z), y, pcm_channel, CHN_LINK(z)) #define CHN_INSERT_HEAD_SAFE(x, y, z) do { \ struct pcm_channel *t = NULL; \ CHN_FOREACH(t, x, z) { \ if (t == y) \ break; \ } \ if (t != y) \ CHN_INSERT_HEAD(x, y, z); \ } while (0) #define CHN_INSERT_AFTER_SAFE(w, x, y, z) do { \ struct pcm_channel *t = NULL; \ CHN_FOREACH(t, w, z) { \ if (t == y) \ break; \ } \ if (t != y) \ CHN_INSERT_AFTER(x, y, z); \ } while (0) #define CHN_REMOVE_SAFE(x, y, z) do { \ struct pcm_channel *t = NULL; \ CHN_FOREACH(t, x, z) { \ if (t == y) \ break; \ } \ if (t == y) \ CHN_REMOVE(x, y, z); \ } while (0) #define CHN_INSERT_SORT(w, x, y, z) do { \ struct pcm_channel *t, *a = NULL; \ CHN_FOREACH(t, x, z) { \ if ((y)->unit w t->unit) \ a = t; \ else \ break; \ } \ if (a != NULL) \ CHN_INSERT_AFTER(a, y, z); \ else \ CHN_INSERT_HEAD(x, y, z); \ } while (0) #define CHN_INSERT_SORT_ASCEND(x, y, z) CHN_INSERT_SORT(>, x, y, z) #define CHN_INSERT_SORT_DESCEND(x, y, z) CHN_INSERT_SORT(<, x, y, z) #define CHN_UNIT(x) (snd_unit2u((x)->unit)) #define CHN_DEV(x) (snd_unit2d((x)->unit)) #define CHN_CHAN(x) (snd_unit2c((x)->unit)) #define CHN_BUF_PARENT(x, y) \ (((x) != NULL && (x)->parentchannel != NULL && \ (x)->parentchannel->bufhard != NULL) ? \ (x)->parentchannel->bufhard : (y)) #define CHN_BROADCAST(x) do { \ if ((x)->cv_waiters != 0) \ cv_broadcastpri(x, PRIBIO); \ } while (0) #include "channel_if.h" int chn_reinit(struct pcm_channel *c); int chn_write(struct pcm_channel *c, struct uio *buf); int chn_read(struct pcm_channel *c, struct uio *buf); u_int32_t chn_start(struct pcm_channel *c, int force); int chn_sync(struct pcm_channel *c, int threshold); int chn_flush(struct pcm_channel *c); int chn_poll(struct pcm_channel *c, int ev, struct thread *td); int chn_init(struct pcm_channel *c, void *devinfo, int dir, int direction); int chn_kill(struct pcm_channel *c); int chn_reset(struct pcm_channel *c, u_int32_t fmt, u_int32_t spd); int chn_setvolume(struct pcm_channel *c, int left, int right); int chn_setvolume_multi(struct pcm_channel *c, int vc, int left, int right, int center); int chn_setvolume_matrix(struct pcm_channel *c, int vc, int vt, int val); int chn_getvolume_matrix(struct pcm_channel *c, int vc, int vt); void chn_vpc_reset(struct pcm_channel *c, int vc, int force); int chn_setparam(struct pcm_channel *c, uint32_t format, uint32_t speed); int chn_setspeed(struct pcm_channel *c, uint32_t speed); int chn_setformat(struct pcm_channel *c, uint32_t format); int chn_setblocksize(struct pcm_channel *c, int blkcnt, int blksz); int chn_setlatency(struct pcm_channel *c, int latency); void chn_syncstate(struct pcm_channel *c); int chn_trigger(struct pcm_channel *c, int go); int chn_getptr(struct pcm_channel *c); struct pcmchan_caps *chn_getcaps(struct pcm_channel *c); u_int32_t chn_getformats(struct pcm_channel *c); struct pcmchan_matrix *chn_getmatrix(struct pcm_channel *); int chn_setmatrix(struct pcm_channel *, struct pcmchan_matrix *); int chn_oss_getorder(struct pcm_channel *, unsigned long long *); int chn_oss_setorder(struct pcm_channel *, unsigned long long *); int chn_oss_getmask(struct pcm_channel *, uint32_t *); void chn_resetbuf(struct pcm_channel *c); void chn_intr_locked(struct pcm_channel *c); void chn_intr(struct pcm_channel *c); int chn_abort(struct pcm_channel *c); int chn_notify(struct pcm_channel *c, u_int32_t flags); int chn_getrates(struct pcm_channel *c, int **rates); int chn_syncdestroy(struct pcm_channel *c); #define CHN_SETVOLUME(...) chn_setvolume_matrix(__VA_ARGS__) #if defined(SND_DIAGNOSTIC) || defined(INVARIANTS) #define CHN_GETVOLUME(...) chn_getvolume_matrix(__VA_ARGS__) #else #define CHN_GETVOLUME(x, y, z) ((x)->volume[y][z]) #endif #ifdef OSSV4_EXPERIMENT int chn_getpeaks(struct pcm_channel *c, int *lpeak, int *rpeak); #endif #define CHN_LOCKOWNED(c) mtx_owned((c)->lock) #define CHN_LOCK(c) mtx_lock((c)->lock) #define CHN_UNLOCK(c) mtx_unlock((c)->lock) #define CHN_TRYLOCK(c) mtx_trylock((c)->lock) #define CHN_LOCKASSERT(c) mtx_assert((c)->lock, MA_OWNED) #define CHN_UNLOCKASSERT(c) mtx_assert((c)->lock, MA_NOTOWNED) int snd_fmtvalid(uint32_t fmt, uint32_t *fmtlist); uint32_t snd_str2afmt(const char *); uint32_t snd_afmt2str(uint32_t, char *, size_t); #define AFMTSTR_LEN 16 extern int chn_latency; extern int chn_latency_profile; extern int report_soft_formats; extern int report_soft_matrix; #define PCMDIR_PLAY 1 #define PCMDIR_PLAY_VIRTUAL 2 #define PCMDIR_REC -1 #define PCMDIR_REC_VIRTUAL -2 #define PCMTRIG_START 1 #define PCMTRIG_EMLDMAWR 2 #define PCMTRIG_EMLDMARD 3 #define PCMTRIG_STOP 0 #define PCMTRIG_ABORT -1 #define PCMTRIG_COMMON(x) ((x) == PCMTRIG_START || \ (x) == PCMTRIG_STOP || \ (x) == PCMTRIG_ABORT) #define CHN_F_CLOSING 0x00000001 /* a pending close */ #define CHN_F_ABORTING 0x00000002 /* a pending abort */ #define CHN_F_RUNNING 0x00000004 /* dma is running */ #define CHN_F_TRIGGERED 0x00000008 #define CHN_F_NOTRIGGER 0x00000010 #define CHN_F_SLEEPING 0x00000020 #define CHN_F_NBIO 0x00000040 /* do non-blocking i/o */ #define CHN_F_MMAP 0x00000080 /* has been mmap()ed */ #define CHN_F_BUSY 0x00000100 /* has been opened */ #define CHN_F_DIRTY 0x00000200 /* need re-config */ #define CHN_F_DEAD 0x00000400 /* too many errors, dead, mdk */ #define CHN_F_SILENCE 0x00000800 /* silence, nil, null, yada */ #define CHN_F_HAS_SIZE 0x00001000 /* user set block size */ #define CHN_F_HAS_VCHAN 0x00002000 /* vchan master */ #define CHN_F_VCHAN_PASSTHROUGH 0x00004000 /* digital ac3/dts passthrough */ #define CHN_F_VCHAN_ADAPTIVE 0x00008000 /* adaptive format/rate selection */ #define CHN_F_VCHAN_DYNAMIC (CHN_F_VCHAN_PASSTHROUGH | CHN_F_VCHAN_ADAPTIVE) #define CHN_F_VIRTUAL 0x10000000 /* not backed by hardware */ #define CHN_F_BITPERFECT 0x20000000 /* un-cooked, Heh.. */ #define CHN_F_PASSTHROUGH 0x40000000 /* passthrough re-config */ #define CHN_F_EXCLUSIVE 0x80000000 /* exclusive access */ #define CHN_F_BITS "\020" \ "\001CLOSING" \ "\002ABORTING" \ "\003RUNNING" \ "\004TRIGGERED" \ "\005NOTRIGGER" \ "\006SLEEPING" \ "\007NBIO" \ "\010MMAP" \ "\011BUSY" \ "\012DIRTY" \ "\013DEAD" \ "\014SILENCE" \ "\015HAS_SIZE" \ "\016HAS_VCHAN" \ "\017VCHAN_PASSTHROUGH" \ "\020VCHAN_ADAPTIVE" \ "\035VIRTUAL" \ "\036BITPERFECT" \ "\037PASSTHROUGH" \ "\040EXCLUSIVE" #define CHN_F_RESET (CHN_F_BUSY | CHN_F_DEAD | \ CHN_F_VIRTUAL | CHN_F_HAS_VCHAN | \ CHN_F_VCHAN_DYNAMIC | \ CHN_F_PASSTHROUGH | CHN_F_EXCLUSIVE) #define CHN_F_MMAP_INVALID (CHN_F_DEAD | CHN_F_RUNNING) #define CHN_N_RATE 0x00000001 #define CHN_N_FORMAT 0x00000002 #define CHN_N_VOLUME 0x00000004 #define CHN_N_BLOCKSIZE 0x00000008 #define CHN_N_TRIGGER 0x00000010 #define CHN_LATENCY_MIN 0 #define CHN_LATENCY_MAX 10 #define CHN_LATENCY_DEFAULT 5 #define CHN_POLICY_MIN CHN_LATENCY_MIN #define CHN_POLICY_MAX CHN_LATENCY_MAX #define CHN_POLICY_DEFAULT CHN_LATENCY_DEFAULT #define CHN_LATENCY_PROFILE_MIN 0 #define CHN_LATENCY_PROFILE_MAX 1 #define CHN_LATENCY_PROFILE_DEFAULT CHN_LATENCY_PROFILE_MAX #define CHN_STARTED(c) ((c)->flags & CHN_F_TRIGGERED) #define CHN_STOPPED(c) (!CHN_STARTED(c)) #define CHN_DIRSTR(c) (((c)->direction == PCMDIR_PLAY) ? \ "PCMDIR_PLAY" : "PCMDIR_REC") #define CHN_BITPERFECT(c) ((c)->flags & CHN_F_BITPERFECT) #define CHN_PASSTHROUGH(c) ((c)->flags & CHN_F_PASSTHROUGH) #define CHN_TIMEOUT 5 #define CHN_TIMEOUT_MIN 1 #define CHN_TIMEOUT_MAX 10 /* * This should be large enough to hold all pcm data between * tsleeps in chn_{read,write} at the highest sample rate. * (which is usually 48kHz * 16bit * stereo = 192000 bytes/sec) */ #define CHN_2NDBUFBLKSIZE (2 * 1024) /* The total number of blocks per secondary bufhard. */ #define CHN_2NDBUFBLKNUM (32) /* The size of a whole secondary bufhard. */ #define CHN_2NDBUFMAXSIZE (131072) #define CHANNEL_DECLARE(name) static DEFINE_CLASS(name, name ## _methods, sizeof(struct kobj)) Index: head/sys/dev/sound/pcm/feeder_chain.c =================================================================== --- head/sys/dev/sound/pcm/feeder_chain.c (revision 282649) +++ head/sys/dev/sound/pcm/feeder_chain.c (revision 282650) @@ -1,842 +1,857 @@ /*- * Copyright (c) 2008-2009 Ariff Abdullah * 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. */ #ifdef HAVE_KERNEL_OPTION_HEADERS #include "opt_snd.h" #endif #include #include "feeder_if.h" SND_DECLARE_FILE("$FreeBSD$"); /* chain state */ struct feeder_chain_state { uint32_t afmt; /* audio format */ uint32_t rate; /* sampling rate */ struct pcmchan_matrix *matrix; /* matrix map */ }; /* * chain descriptor that will be passed around from the beginning until the * end of chain process. */ struct feeder_chain_desc { struct feeder_chain_state origin; /* original state */ struct feeder_chain_state current; /* current state */ struct feeder_chain_state target; /* target state */ struct pcm_feederdesc desc; /* feeder descriptor */ uint32_t afmt_ne; /* prefered native endian */ int mode; /* chain mode */ int use_eq; /* need EQ? */ int use_matrix; /* need channel matrixing? */ int use_volume; /* need softpcmvol? */ int dummy; /* dummy passthrough */ int expensive; /* possibly expensive */ }; #define FEEDER_CHAIN_LEAN 0 #define FEEDER_CHAIN_16 1 #define FEEDER_CHAIN_32 2 #define FEEDER_CHAIN_MULTI 3 #define FEEDER_CHAIN_FULLMULTI 4 #define FEEDER_CHAIN_LAST 5 #if defined(SND_FEEDER_FULL_MULTIFORMAT) #define FEEDER_CHAIN_DEFAULT FEEDER_CHAIN_FULLMULTI #elif defined(SND_FEEDER_MULTIFORMAT) #define FEEDER_CHAIN_DEFAULT FEEDER_CHAIN_MULTI #else #define FEEDER_CHAIN_DEFAULT FEEDER_CHAIN_LEAN #endif /* * List of prefered formats that might be required during * processing. It will be decided through snd_fmtbest(). */ /* 'Lean' mode, signed 16 or 32 bit native endian. */ static uint32_t feeder_chain_formats_lean[] = { AFMT_S16_NE, AFMT_S32_NE, 0 }; /* Force everything to signed 16 bit native endian. */ static uint32_t feeder_chain_formats_16[] = { AFMT_S16_NE, 0 }; /* Force everything to signed 32 bit native endian. */ static uint32_t feeder_chain_formats_32[] = { AFMT_S32_NE, 0 }; /* Multiple choices, all except 8 bit. */ static uint32_t feeder_chain_formats_multi[] = { AFMT_S16_LE, AFMT_S16_BE, AFMT_U16_LE, AFMT_U16_BE, AFMT_S24_LE, AFMT_S24_BE, AFMT_U24_LE, AFMT_U24_BE, AFMT_S32_LE, AFMT_S32_BE, AFMT_U32_LE, AFMT_U32_BE, 0 }; /* Everything that is convertible. */ static uint32_t feeder_chain_formats_fullmulti[] = { AFMT_S8, AFMT_U8, AFMT_S16_LE, AFMT_S16_BE, AFMT_U16_LE, AFMT_U16_BE, AFMT_S24_LE, AFMT_S24_BE, AFMT_U24_LE, AFMT_U24_BE, AFMT_S32_LE, AFMT_S32_BE, AFMT_U32_LE, AFMT_U32_BE, 0 }; static uint32_t *feeder_chain_formats[FEEDER_CHAIN_LAST] = { [FEEDER_CHAIN_LEAN] = feeder_chain_formats_lean, [FEEDER_CHAIN_16] = feeder_chain_formats_16, [FEEDER_CHAIN_32] = feeder_chain_formats_32, [FEEDER_CHAIN_MULTI] = feeder_chain_formats_multi, [FEEDER_CHAIN_FULLMULTI] = feeder_chain_formats_fullmulti }; static int feeder_chain_mode = FEEDER_CHAIN_DEFAULT; #if defined(_KERNEL) && defined(SND_DEBUG) && defined(SND_FEEDER_FULL_MULTIFORMAT) SYSCTL_INT(_hw_snd, OID_AUTO, feeder_chain_mode, CTLFLAG_RWTUN, &feeder_chain_mode, 0, "feeder chain mode " "(0=lean, 1=16bit, 2=32bit, 3=multiformat, 4=fullmultiformat)"); #endif /* * feeder_build_format(): Chain any format converter. */ static int feeder_build_format(struct pcm_channel *c, struct feeder_chain_desc *cdesc) { struct feeder_class *fc; struct pcm_feederdesc *desc; int ret; desc = &(cdesc->desc); desc->type = FEEDER_FORMAT; desc->in = 0; desc->out = 0; desc->flags = 0; fc = feeder_getclass(desc); if (fc == NULL) { device_printf(c->dev, "%s(): can't find feeder_format\n", __func__); return (ENOTSUP); } desc->in = cdesc->current.afmt; desc->out = cdesc->target.afmt; ret = chn_addfeeder(c, fc, desc); if (ret != 0) { device_printf(c->dev, "%s(): can't add feeder_format\n", __func__); return (ret); } c->feederflags |= 1 << FEEDER_FORMAT; cdesc->current.afmt = cdesc->target.afmt; return (0); } /* * feeder_build_formatne(): Chain format converter that suite best for native * endian format. */ static int feeder_build_formatne(struct pcm_channel *c, struct feeder_chain_desc *cdesc) { struct feeder_chain_state otarget; int ret; if (cdesc->afmt_ne == 0 || AFMT_ENCODING(cdesc->current.afmt) == cdesc->afmt_ne) return (0); otarget = cdesc->target; cdesc->target = cdesc->current; cdesc->target.afmt = SND_FORMAT(cdesc->afmt_ne, cdesc->current.matrix->channels, cdesc->current.matrix->ext); ret = feeder_build_format(c, cdesc); if (ret != 0) return (ret); cdesc->target = otarget; return (0); } /* * feeder_build_rate(): Chain sample rate converter. */ static int feeder_build_rate(struct pcm_channel *c, struct feeder_chain_desc *cdesc) { struct feeder_class *fc; struct pcm_feeder *f; struct pcm_feederdesc *desc; int ret; ret = feeder_build_formatne(c, cdesc); if (ret != 0) return (ret); desc = &(cdesc->desc); desc->type = FEEDER_RATE; desc->in = 0; desc->out = 0; desc->flags = 0; fc = feeder_getclass(desc); if (fc == NULL) { device_printf(c->dev, "%s(): can't find feeder_rate\n", __func__); return (ENOTSUP); } desc->in = cdesc->current.afmt; desc->out = desc->in; ret = chn_addfeeder(c, fc, desc); if (ret != 0) { device_printf(c->dev, "%s(): can't add feeder_rate\n", __func__); return (ret); } f = c->feeder; /* * If in 'dummy' mode (possibly due to passthrough mode), set the * conversion quality to the lowest possible (should be fastest) since * listener won't be hearing anything. Theoretically we can just * disable it, but that will cause weird runtime behaviour: * application appear to play something that is either too fast or too * slow. */ if (cdesc->dummy != 0) { ret = FEEDER_SET(f, FEEDRATE_QUALITY, 0); if (ret != 0) { device_printf(c->dev, "%s(): can't set resampling quality\n", __func__); return (ret); } } ret = FEEDER_SET(f, FEEDRATE_SRC, cdesc->current.rate); if (ret != 0) { device_printf(c->dev, "%s(): can't set source rate\n", __func__); return (ret); } ret = FEEDER_SET(f, FEEDRATE_DST, cdesc->target.rate); if (ret != 0) { device_printf(c->dev, "%s(): can't set destination rate\n", __func__); return (ret); } c->feederflags |= 1 << FEEDER_RATE; cdesc->current.rate = cdesc->target.rate; return (0); } /* * feeder_build_matrix(): Chain channel matrixing converter. */ static int feeder_build_matrix(struct pcm_channel *c, struct feeder_chain_desc *cdesc) { struct feeder_class *fc; struct pcm_feeder *f; struct pcm_feederdesc *desc; int ret; ret = feeder_build_formatne(c, cdesc); if (ret != 0) return (ret); desc = &(cdesc->desc); desc->type = FEEDER_MATRIX; desc->in = 0; desc->out = 0; desc->flags = 0; fc = feeder_getclass(desc); if (fc == NULL) { device_printf(c->dev, "%s(): can't find feeder_matrix\n", __func__); return (ENOTSUP); } desc->in = cdesc->current.afmt; desc->out = SND_FORMAT(cdesc->current.afmt, cdesc->target.matrix->channels, cdesc->target.matrix->ext); ret = chn_addfeeder(c, fc, desc); if (ret != 0) { device_printf(c->dev, "%s(): can't add feeder_matrix\n", __func__); return (ret); } f = c->feeder; ret = feeder_matrix_setup(f, cdesc->current.matrix, cdesc->target.matrix); if (ret != 0) { device_printf(c->dev, "%s(): feeder_matrix_setup() failed\n", __func__); return (ret); } c->feederflags |= 1 << FEEDER_MATRIX; cdesc->current.afmt = desc->out; cdesc->current.matrix = cdesc->target.matrix; cdesc->use_matrix = 0; return (0); } /* * feeder_build_volume(): Chain soft volume. */ static int feeder_build_volume(struct pcm_channel *c, struct feeder_chain_desc *cdesc) { struct feeder_class *fc; struct pcm_feeder *f; struct pcm_feederdesc *desc; int ret; ret = feeder_build_formatne(c, cdesc); if (ret != 0) return (ret); desc = &(cdesc->desc); desc->type = FEEDER_VOLUME; desc->in = 0; desc->out = 0; desc->flags = 0; fc = feeder_getclass(desc); if (fc == NULL) { device_printf(c->dev, "%s(): can't find feeder_volume\n", __func__); return (ENOTSUP); } desc->in = cdesc->current.afmt; desc->out = desc->in; ret = chn_addfeeder(c, fc, desc); if (ret != 0) { device_printf(c->dev, "%s(): can't add feeder_volume\n", __func__); return (ret); } f = c->feeder; /* * If in 'dummy' mode (possibly due to passthrough mode), set BYPASS * mode since listener won't be hearing anything. Theoretically we can * just disable it, but that will confuse volume per channel mixer. */ if (cdesc->dummy != 0) { ret = FEEDER_SET(f, FEEDVOLUME_STATE, FEEDVOLUME_BYPASS); if (ret != 0) { device_printf(c->dev, "%s(): can't set volume bypass\n", __func__); return (ret); } } ret = feeder_volume_apply_matrix(f, cdesc->current.matrix); if (ret != 0) { device_printf(c->dev, "%s(): feeder_volume_apply_matrix() failed\n", __func__); return (ret); } c->feederflags |= 1 << FEEDER_VOLUME; cdesc->use_volume = 0; return (0); } /* * feeder_build_eq(): Chain parametric software equalizer. */ static int feeder_build_eq(struct pcm_channel *c, struct feeder_chain_desc *cdesc) { struct feeder_class *fc; struct pcm_feeder *f; struct pcm_feederdesc *desc; int ret; ret = feeder_build_formatne(c, cdesc); if (ret != 0) return (ret); desc = &(cdesc->desc); desc->type = FEEDER_EQ; desc->in = 0; desc->out = 0; desc->flags = 0; fc = feeder_getclass(desc); if (fc == NULL) { device_printf(c->dev, "%s(): can't find feeder_eq\n", __func__); return (ENOTSUP); } desc->in = cdesc->current.afmt; desc->out = desc->in; ret = chn_addfeeder(c, fc, desc); if (ret != 0) { device_printf(c->dev, "%s(): can't add feeder_eq\n", __func__); return (ret); } f = c->feeder; ret = FEEDER_SET(f, FEEDEQ_RATE, cdesc->current.rate); if (ret != 0) { device_printf(c->dev, "%s(): can't set rate on feeder_eq\n", __func__); return (ret); } c->feederflags |= 1 << FEEDER_EQ; cdesc->use_eq = 0; return (0); } /* * feeder_build_root(): Chain root feeder, the top, father of all. */ static int feeder_build_root(struct pcm_channel *c, struct feeder_chain_desc *cdesc) { struct feeder_class *fc; int ret; fc = feeder_getclass(NULL); if (fc == NULL) { device_printf(c->dev, "%s(): can't find feeder_root\n", __func__); return (ENOTSUP); } ret = chn_addfeeder(c, fc, NULL); if (ret != 0) { device_printf(c->dev, "%s(): can't add feeder_root\n", __func__); return (ret); } c->feederflags |= 1 << FEEDER_ROOT; c->feeder->desc->in = cdesc->current.afmt; c->feeder->desc->out = cdesc->current.afmt; return (0); } /* * feeder_build_mixer(): Chain software mixer for virtual channels. */ static int feeder_build_mixer(struct pcm_channel *c, struct feeder_chain_desc *cdesc) { struct feeder_class *fc; struct pcm_feederdesc *desc; int ret; desc = &(cdesc->desc); desc->type = FEEDER_MIXER; desc->in = 0; desc->out = 0; desc->flags = 0; fc = feeder_getclass(desc); if (fc == NULL) { device_printf(c->dev, "%s(): can't find feeder_mixer\n", __func__); return (ENOTSUP); } desc->in = cdesc->current.afmt; desc->out = desc->in; ret = chn_addfeeder(c, fc, desc); if (ret != 0) { device_printf(c->dev, "%s(): can't add feeder_mixer\n", __func__); return (ret); } c->feederflags |= 1 << FEEDER_MIXER; return (0); } /* Macrosses to ease our job doing stuffs later. */ #define FEEDER_BW(c, t) ((c)->t.matrix->channels * (c)->t.rate) #define FEEDRATE_UP(c) ((c)->target.rate > (c)->current.rate) #define FEEDRATE_DOWN(c) ((c)->target.rate < (c)->current.rate) #define FEEDRATE_REQUIRED(c) (FEEDRATE_UP(c) || FEEDRATE_DOWN(c)) #define FEEDMATRIX_UP(c) ((c)->target.matrix->channels > \ (c)->current.matrix->channels) #define FEEDMATRIX_DOWN(c) ((c)->target.matrix->channels < \ (c)->current.matrix->channels) #define FEEDMATRIX_REQUIRED(c) (FEEDMATRIX_UP(c) || \ FEEDMATRIX_DOWN(c) || (c)->use_matrix != 0) #define FEEDFORMAT_REQUIRED(c) (AFMT_ENCODING((c)->current.afmt) != \ AFMT_ENCODING((c)->target.afmt)) #define FEEDVOLUME_REQUIRED(c) ((c)->use_volume != 0) #define FEEDEQ_VALIDRATE(c, t) (feeder_eq_validrate((c)->t.rate) != 0) #define FEEDEQ_ECONOMY(c) (FEEDER_BW(c, current) < FEEDER_BW(c, target)) #define FEEDEQ_REQUIRED(c) ((c)->use_eq != 0 && \ FEEDEQ_VALIDRATE(c, current)) #define FEEDFORMAT_NE_REQUIRED(c) \ ((c)->afmt_ne != AFMT_S32_NE && \ (((c)->mode == FEEDER_CHAIN_16 && \ AFMT_ENCODING((c)->current.afmt) != AFMT_S16_NE) || \ ((c)->mode == FEEDER_CHAIN_32 && \ AFMT_ENCODING((c)->current.afmt) != AFMT_S32_NE) || \ (c)->mode == FEEDER_CHAIN_FULLMULTI || \ ((c)->mode == FEEDER_CHAIN_MULTI && \ ((c)->current.afmt & AFMT_8BIT)) || \ ((c)->mode == FEEDER_CHAIN_LEAN && \ !((c)->current.afmt & (AFMT_S16_NE | AFMT_S32_NE))))) +static void +feeder_default_matrix(struct pcmchan_matrix *m, uint32_t fmt, int id) +{ + int x; + + memset(m, 0, sizeof(*m)); + + m->id = id; + m->channels = AFMT_CHANNEL(fmt); + m->ext = AFMT_EXTCHANNEL(fmt); + for (x = 0; x != SND_CHN_T_MAX; x++) + m->offset[x] = -1; +} + int feeder_chain(struct pcm_channel *c) { struct snddev_info *d; struct pcmchan_caps *caps; struct feeder_chain_desc cdesc; struct pcmchan_matrix *hwmatrix, *softmatrix; uint32_t hwfmt, softfmt; int ret; CHN_LOCKASSERT(c); /* Remove everything first. */ while (chn_removefeeder(c) == 0) ; KASSERT(c->feeder == NULL, ("feeder chain not empty")); /* clear and populate chain descriptor. */ bzero(&cdesc, sizeof(cdesc)); switch (feeder_chain_mode) { case FEEDER_CHAIN_LEAN: case FEEDER_CHAIN_16: case FEEDER_CHAIN_32: #if defined(SND_FEEDER_MULTIFORMAT) || defined(SND_FEEDER_FULL_MULTIFORMAT) case FEEDER_CHAIN_MULTI: #endif #if defined(SND_FEEDER_FULL_MULTIFORMAT) case FEEDER_CHAIN_FULLMULTI: #endif break; default: feeder_chain_mode = FEEDER_CHAIN_DEFAULT; break; } cdesc.mode = feeder_chain_mode; cdesc.expensive = 1; /* XXX faster.. */ #define VCHAN_PASSTHROUGH(c) (((c)->flags & (CHN_F_VIRTUAL | \ CHN_F_PASSTHROUGH)) == \ (CHN_F_VIRTUAL | CHN_F_PASSTHROUGH)) /* Get the best possible hardware format. */ if (VCHAN_PASSTHROUGH(c)) hwfmt = c->parentchannel->format; else { caps = chn_getcaps(c); if (caps == NULL || caps->fmtlist == NULL) { device_printf(c->dev, "%s(): failed to get channel caps\n", __func__); return (ENODEV); } if ((c->format & AFMT_PASSTHROUGH) && !snd_fmtvalid(c->format, caps->fmtlist)) return (ENODEV); hwfmt = snd_fmtbest(c->format, caps->fmtlist); if (hwfmt == 0 || !snd_fmtvalid(hwfmt, caps->fmtlist)) { device_printf(c->dev, "%s(): invalid hardware format 0x%08x\n", __func__, hwfmt); { int i; for (i = 0; caps->fmtlist[i] != 0; i++) printf("0x%08x\n", caps->fmtlist[i]); printf("Req: 0x%08x\n", c->format); } return (ENODEV); } } /* * The 'hardware' possibly have different intepretation of channel * matrixing, so get it first ..... */ hwmatrix = CHANNEL_GETMATRIX(c->methods, c->devinfo, hwfmt); if (hwmatrix == NULL) { - device_printf(c->dev, - "%s(): failed to acquire hw matrix [0x%08x]\n", - __func__, hwfmt); - return (ENODEV); + /* setup a default matrix */ + hwmatrix = &c->matrix_scratch; + feeder_default_matrix(hwmatrix, hwfmt, + SND_CHN_MATRIX_UNKNOWN); } /* ..... and rebuild hwfmt. */ hwfmt = SND_FORMAT(hwfmt, hwmatrix->channels, hwmatrix->ext); /* Reset and rebuild default channel format/matrix map. */ softfmt = c->format; softmatrix = &c->matrix; if (softmatrix->channels != AFMT_CHANNEL(softfmt) || softmatrix->ext != AFMT_EXTCHANNEL(softfmt)) { softmatrix = feeder_matrix_format_map(softfmt); if (softmatrix == NULL) { - device_printf(c->dev, - "%s(): failed to acquire soft matrix [0x%08x]\n", - __func__, softfmt); - return (ENODEV); + /* setup a default matrix */ + softmatrix = &c->matrix; + feeder_default_matrix(softmatrix, softfmt, + SND_CHN_MATRIX_PCMCHANNEL); + } else { + c->matrix = *softmatrix; + c->matrix.id = SND_CHN_MATRIX_PCMCHANNEL; } - c->matrix = *softmatrix; - c->matrix.id = SND_CHN_MATRIX_PCMCHANNEL; } softfmt = SND_FORMAT(softfmt, softmatrix->channels, softmatrix->ext); if (softfmt != c->format) device_printf(c->dev, "%s(): WARNING: %s Soft format 0x%08x -> 0x%08x\n", __func__, CHN_DIRSTR(c), c->format, softfmt); /* * PLAY and REC are opposite. */ if (c->direction == PCMDIR_PLAY) { cdesc.origin.afmt = softfmt; cdesc.origin.matrix = softmatrix; cdesc.origin.rate = c->speed; cdesc.target.afmt = hwfmt; cdesc.target.matrix = hwmatrix; cdesc.target.rate = sndbuf_getspd(c->bufhard); } else { cdesc.origin.afmt = hwfmt; cdesc.origin.matrix = hwmatrix; cdesc.origin.rate = sndbuf_getspd(c->bufhard); cdesc.target.afmt = softfmt; cdesc.target.matrix = softmatrix; cdesc.target.rate = c->speed; } d = c->parentsnddev; /* * If channel is in bitperfect or passthrough mode, make it appear * that 'origin' and 'target' identical, skipping mostly chain * procedures. */ if (CHN_BITPERFECT(c) || (c->format & AFMT_PASSTHROUGH)) { if (c->direction == PCMDIR_PLAY) cdesc.origin = cdesc.target; else cdesc.target = cdesc.origin; c->format = cdesc.target.afmt; c->speed = cdesc.target.rate; } else { /* hwfmt is not convertible, so 'dummy' it. */ if (hwfmt & AFMT_PASSTHROUGH) cdesc.dummy = 1; if ((softfmt & AFMT_CONVERTIBLE) && (((d->flags & SD_F_VPC) && !(c->flags & CHN_F_HAS_VCHAN)) || (!(d->flags & SD_F_VPC) && (d->flags & SD_F_SOFTPCMVOL) && !(c->flags & CHN_F_VIRTUAL)))) cdesc.use_volume = 1; if (feeder_matrix_compare(cdesc.origin.matrix, cdesc.target.matrix) != 0) cdesc.use_matrix = 1; /* Soft EQ only applicable for PLAY. */ if (cdesc.dummy == 0 && c->direction == PCMDIR_PLAY && (d->flags & SD_F_EQ) && (((d->flags & SD_F_EQ_PC) && !(c->flags & CHN_F_HAS_VCHAN)) || (!(d->flags & SD_F_EQ_PC) && !(c->flags & CHN_F_VIRTUAL)))) cdesc.use_eq = 1; if (FEEDFORMAT_NE_REQUIRED(&cdesc)) { cdesc.afmt_ne = (cdesc.dummy != 0) ? snd_fmtbest(AFMT_ENCODING(softfmt), feeder_chain_formats[cdesc.mode]) : snd_fmtbest(AFMT_ENCODING(cdesc.target.afmt), feeder_chain_formats[cdesc.mode]); if (cdesc.afmt_ne == 0) { device_printf(c->dev, "%s(): snd_fmtbest failed!\n", __func__); cdesc.afmt_ne = (((cdesc.dummy != 0) ? softfmt : cdesc.target.afmt) & (AFMT_24BIT | AFMT_32BIT)) ? AFMT_S32_NE : AFMT_S16_NE; } } } cdesc.current = cdesc.origin; /* Build everything. */ c->feederflags = 0; #define FEEDER_BUILD(t) do { \ ret = feeder_build_##t(c, &cdesc); \ if (ret != 0) \ return (ret); \ } while (0) if (!(c->flags & CHN_F_HAS_VCHAN) || c->direction == PCMDIR_REC) FEEDER_BUILD(root); else if (c->direction == PCMDIR_PLAY && (c->flags & CHN_F_HAS_VCHAN)) FEEDER_BUILD(mixer); else return (ENOTSUP); /* * The basic idea is: The smaller the bandwidth, the cheaper the * conversion process, with following constraints:- * * 1) Almost all feeders work best in 16/32 native endian. * 2) Try to avoid 8bit feeders due to poor dynamic range. * 3) Avoid volume, format, matrix and rate in BITPERFECT or * PASSTHROUGH mode. * 4) Try putting volume before EQ or rate. Should help to * avoid/reduce possible clipping. * 5) EQ require specific, valid rate, unless it allow sloppy * conversion. */ if (FEEDMATRIX_UP(&cdesc)) { if (FEEDEQ_REQUIRED(&cdesc) && (!FEEDEQ_VALIDRATE(&cdesc, target) || (cdesc.expensive == 0 && FEEDEQ_ECONOMY(&cdesc)))) FEEDER_BUILD(eq); if (FEEDRATE_REQUIRED(&cdesc)) FEEDER_BUILD(rate); FEEDER_BUILD(matrix); if (FEEDVOLUME_REQUIRED(&cdesc)) FEEDER_BUILD(volume); if (FEEDEQ_REQUIRED(&cdesc)) FEEDER_BUILD(eq); } else if (FEEDMATRIX_DOWN(&cdesc)) { FEEDER_BUILD(matrix); if (FEEDVOLUME_REQUIRED(&cdesc)) FEEDER_BUILD(volume); if (FEEDEQ_REQUIRED(&cdesc) && (!FEEDEQ_VALIDRATE(&cdesc, target) || FEEDEQ_ECONOMY(&cdesc))) FEEDER_BUILD(eq); if (FEEDRATE_REQUIRED(&cdesc)) FEEDER_BUILD(rate); if (FEEDEQ_REQUIRED(&cdesc)) FEEDER_BUILD(eq); } else { if (FEEDRATE_DOWN(&cdesc)) { if (FEEDEQ_REQUIRED(&cdesc) && !FEEDEQ_VALIDRATE(&cdesc, target)) { if (FEEDVOLUME_REQUIRED(&cdesc)) FEEDER_BUILD(volume); FEEDER_BUILD(eq); } FEEDER_BUILD(rate); } if (FEEDMATRIX_REQUIRED(&cdesc)) FEEDER_BUILD(matrix); if (FEEDVOLUME_REQUIRED(&cdesc)) FEEDER_BUILD(volume); if (FEEDRATE_UP(&cdesc)) { if (FEEDEQ_REQUIRED(&cdesc) && !FEEDEQ_VALIDRATE(&cdesc, target)) FEEDER_BUILD(eq); FEEDER_BUILD(rate); } if (FEEDEQ_REQUIRED(&cdesc)) FEEDER_BUILD(eq); } if (FEEDFORMAT_REQUIRED(&cdesc)) FEEDER_BUILD(format); if (c->direction == PCMDIR_REC && (c->flags & CHN_F_HAS_VCHAN)) FEEDER_BUILD(mixer); sndbuf_setfmt(c->bufsoft, c->format); sndbuf_setspd(c->bufsoft, c->speed); sndbuf_setfmt(c->bufhard, hwfmt); chn_syncstate(c); return (0); } Index: head/sys/dev/sound/pcm/sound.h =================================================================== --- head/sys/dev/sound/pcm/sound.h (revision 282649) +++ head/sys/dev/sound/pcm/sound.h (revision 282650) @@ -1,622 +1,624 @@ /*- * Copyright (c) 2005-2009 Ariff Abdullah * Copyright (c) 1999 Cameron Grant * Copyright (c) 1995 Hannu Savolainen * 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. * * $FreeBSD$ */ /* * first, include kernel header files. */ #ifndef _OS_H_ #define _OS_H_ #ifdef _KERNEL #include #include #include #include #include #include #include #include #include /* for DATA_SET */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef KOBJMETHOD_END #define KOBJMETHOD_END { NULL, NULL } #endif struct pcm_channel; struct pcm_feeder; struct snd_dbuf; struct snd_mixer; #include #include #include #include #include #include #include #include #include #define PCM_SOFTC_SIZE (sizeof(struct snddev_info)) #define SND_STATUSLEN 64 #define SOUND_MODVER 5 #define SOUND_MINVER SOUND_MODVER #define SOUND_PREFVER SOUND_MODVER #define SOUND_MAXVER SOUND_MODVER /* * We're abusing the fact that MAXMINOR still have enough room * for our bit twiddling and nobody ever need 512 unique soundcards, * 32 unique device types and 1024 unique cloneable devices for the * next 100 years... */ #define PCMMAXUNIT (snd_max_u()) #define PCMMAXDEV (snd_max_d()) #define PCMMAXCHAN (snd_max_c()) #define PCMMAXCLONE PCMMAXCHAN #define PCMUNIT(x) (snd_unit2u(dev2unit(x))) #define PCMDEV(x) (snd_unit2d(dev2unit(x))) #define PCMCHAN(x) (snd_unit2c(dev2unit(x))) /* XXX unit2minor compat */ #define PCMMINOR(x) (x) /* * By design, limit possible channels for each direction. */ #define SND_MAXHWCHAN 256 #define SND_MAXVCHANS SND_MAXHWCHAN #define SD_F_SIMPLEX 0x00000001 #define SD_F_AUTOVCHAN 0x00000002 #define SD_F_SOFTPCMVOL 0x00000004 /* * Obsolete due to better matrixing */ #if 0 #define SD_F_PSWAPLR 0x00000008 #define SD_F_RSWAPLR 0x00000010 #endif #define SD_F_DYING 0x00000008 #define SD_F_SUICIDE 0x00000010 #define SD_F_BUSY 0x00000020 #define SD_F_MPSAFE 0x00000040 #define SD_F_REGISTERED 0x00000080 #define SD_F_BITPERFECT 0x00000100 #define SD_F_VPC 0x00000200 /* volume-per-channel */ #define SD_F_EQ 0x00000400 /* EQ */ #define SD_F_EQ_ENABLED 0x00000800 /* EQ enabled */ #define SD_F_EQ_BYPASSED 0x00001000 /* EQ bypassed */ #define SD_F_EQ_PC 0x00002000 /* EQ per-channel */ #define SD_F_EQ_DEFAULT (SD_F_EQ | SD_F_EQ_ENABLED) #define SD_F_EQ_MASK (SD_F_EQ | SD_F_EQ_ENABLED | \ SD_F_EQ_BYPASSED | SD_F_EQ_PC) #define SD_F_PRIO_RD 0x10000000 #define SD_F_PRIO_WR 0x20000000 #define SD_F_PRIO_SET (SD_F_PRIO_RD | SD_F_PRIO_WR) #define SD_F_DIR_SET 0x40000000 #define SD_F_TRANSIENT 0xf0000000 #define SD_F_BITS "\020" \ "\001SIMPLEX" \ "\002AUTOVCHAN" \ "\003SOFTPCMVOL" \ "\004DYING" \ "\005SUICIDE" \ "\006BUSY" \ "\007MPSAFE" \ "\010REGISTERED" \ "\011BITPERFECT" \ "\012VPC" \ "\013EQ" \ "\014EQ_ENABLED" \ "\015EQ_BYPASSED" \ "\016EQ_PC" \ "\035PRIO_RD" \ "\036PRIO_WR" \ "\037DIR_SET" #define PCM_ALIVE(x) ((x) != NULL && (x)->lock != NULL && \ !((x)->flags & SD_F_DYING)) #define PCM_REGISTERED(x) (PCM_ALIVE(x) && \ ((x)->flags & SD_F_REGISTERED)) /* many variables should be reduced to a range. Here define a macro */ #define RANGE(var, low, high) (var) = \ (((var)<(low))? (low) : ((var)>(high))? (high) : (var)) #define DSP_BUFFSIZE (8192) /* make figuring out what a format is easier. got AFMT_STEREO already */ #define AFMT_32BIT (AFMT_S32_LE | AFMT_S32_BE | AFMT_U32_LE | AFMT_U32_BE) #define AFMT_24BIT (AFMT_S24_LE | AFMT_S24_BE | AFMT_U24_LE | AFMT_U24_BE) #define AFMT_16BIT (AFMT_S16_LE | AFMT_S16_BE | AFMT_U16_LE | AFMT_U16_BE) #define AFMT_G711 (AFMT_MU_LAW | AFMT_A_LAW) #define AFMT_8BIT (AFMT_G711 | AFMT_U8 | AFMT_S8) #define AFMT_SIGNED (AFMT_S32_LE | AFMT_S32_BE | AFMT_S24_LE | AFMT_S24_BE | \ AFMT_S16_LE | AFMT_S16_BE | AFMT_S8) #define AFMT_BIGENDIAN (AFMT_S32_BE | AFMT_U32_BE | AFMT_S24_BE | AFMT_U24_BE | \ AFMT_S16_BE | AFMT_U16_BE) #define AFMT_CONVERTIBLE (AFMT_8BIT | AFMT_16BIT | AFMT_24BIT | \ AFMT_32BIT) /* Supported vchan mixing formats */ #define AFMT_VCHAN (AFMT_CONVERTIBLE & ~AFMT_G711) #define AFMT_PASSTHROUGH AFMT_AC3 #define AFMT_PASSTHROUGH_RATE 48000 #define AFMT_PASSTHROUGH_CHANNEL 2 #define AFMT_PASSTHROUGH_EXTCHANNEL 0 /* * We're simply using unused, contiguous bits from various AFMT_ definitions. * ~(0xb00ff7ff) */ #define AFMT_ENCODING_MASK 0xf00fffff -#define AFMT_CHANNEL_MASK 0x01f00000 +#define AFMT_CHANNEL_MASK 0x07f00000 #define AFMT_CHANNEL_SHIFT 20 -#define AFMT_EXTCHANNEL_MASK 0x0e000000 -#define AFMT_EXTCHANNEL_SHIFT 25 +#define AFMT_CHANNEL_MAX 0x7f +#define AFMT_EXTCHANNEL_MASK 0x08000000 +#define AFMT_EXTCHANNEL_SHIFT 27 +#define AFMT_EXTCHANNEL_MAX 1 #define AFMT_ENCODING(v) ((v) & AFMT_ENCODING_MASK) #define AFMT_EXTCHANNEL(v) (((v) & AFMT_EXTCHANNEL_MASK) >> \ AFMT_EXTCHANNEL_SHIFT) #define AFMT_CHANNEL(v) (((v) & AFMT_CHANNEL_MASK) >> \ AFMT_CHANNEL_SHIFT) #define AFMT_BIT(v) (((v) & AFMT_32BIT) ? 32 : \ (((v) & AFMT_24BIT) ? 24 : \ ((((v) & AFMT_16BIT) || \ ((v) & AFMT_PASSTHROUGH)) ? 16 : 8))) #define AFMT_BPS(v) (AFMT_BIT(v) >> 3) #define AFMT_ALIGN(v) (AFMT_BPS(v) * AFMT_CHANNEL(v)) #define SND_FORMAT(f, c, e) (AFMT_ENCODING(f) | \ (((c) << AFMT_CHANNEL_SHIFT) & \ AFMT_CHANNEL_MASK) | \ (((e) << AFMT_EXTCHANNEL_SHIFT) & \ AFMT_EXTCHANNEL_MASK)) #define AFMT_U8_NE AFMT_U8 #define AFMT_S8_NE AFMT_S8 #define AFMT_SIGNED_NE (AFMT_S8_NE | AFMT_S16_NE | AFMT_S24_NE | AFMT_S32_NE) #define AFMT_NE (AFMT_SIGNED_NE | AFMT_U8_NE | AFMT_U16_NE | \ AFMT_U24_NE | AFMT_U32_NE) /* * Minor numbers for the sound driver. * * Unfortunately Creative called the codec chip of SB as a DSP. For this * reason the /dev/dsp is reserved for digitized audio use. There is a * device for true DSP processors but it will be called something else. * In v3.0 it's /dev/sndproc but this could be a temporary solution. */ #define SND_DEV_CTL 0 /* Control port /dev/mixer */ #define SND_DEV_SEQ 1 /* Sequencer /dev/sequencer */ #define SND_DEV_MIDIN 2 /* Raw midi access */ #define SND_DEV_DSP 3 /* Digitized voice /dev/dsp */ #define SND_DEV_AUDIO 4 /* Sparc compatible /dev/audio */ #define SND_DEV_DSP16 5 /* Like /dev/dsp but 16 bits/sample */ #define SND_DEV_STATUS 6 /* /dev/sndstat */ /* #7 not in use now. */ #define SND_DEV_SEQ2 8 /* /dev/sequencer, level 2 interface */ #define SND_DEV_SNDPROC 9 /* /dev/sndproc for programmable devices */ #define SND_DEV_PSS SND_DEV_SNDPROC /* ? */ #define SND_DEV_NORESET 10 #define SND_DEV_DSPHW_PLAY 11 /* specific playback channel */ #define SND_DEV_DSPHW_VPLAY 12 /* specific virtual playback channel */ #define SND_DEV_DSPHW_REC 13 /* specific record channel */ #define SND_DEV_DSPHW_VREC 14 /* specific virtual record channel */ #define SND_DEV_DSPHW_CD 15 /* s16le/stereo 44100Hz CD */ /* * OSSv4 compatible device. For now, it serve no purpose and * the cloning itself will forward the request to ordinary /dev/dsp * instead. */ #define SND_DEV_DSP_MMAP 16 /* /dev/dsp_mmap */ #define SND_DEV_DSP_AC3 17 /* /dev/dsp_ac3 */ #define SND_DEV_DSP_MULTICH 18 /* /dev/dsp_multich */ #define SND_DEV_DSP_SPDIFOUT 19 /* /dev/dsp_spdifout */ #define SND_DEV_DSP_SPDIFIN 20 /* /dev/dsp_spdifin */ #define SND_DEV_LAST SND_DEV_DSP_SPDIFIN #define SND_DEV_MAX PCMMAXDEV #define DSP_DEFAULT_SPEED 8000 #define ON 1 #define OFF 0 extern int pcm_veto_load; extern int snd_unit; extern int snd_maxautovchans; extern int snd_verbose; extern devclass_t pcm_devclass; extern struct unrhdr *pcmsg_unrhdr; /* * some macros for debugging purposes * DDB/DEB to enable/disable debugging stuff * BVDDB to enable debugging when bootverbose */ #define BVDDB(x) if (bootverbose) x #ifndef DEB #define DEB(x) #endif SYSCTL_DECL(_hw_snd); int pcm_setvchans(struct snddev_info *d, int direction, int newcnt, int num); int pcm_chnalloc(struct snddev_info *d, struct pcm_channel **ch, int direction, pid_t pid, char *comm, int devunit); int pcm_chnrelease(struct pcm_channel *c); int pcm_chnref(struct pcm_channel *c, int ref); int pcm_inprog(struct snddev_info *d, int delta); struct pcm_channel *pcm_chn_create(struct snddev_info *d, struct pcm_channel *parent, kobj_class_t cls, int dir, int num, void *devinfo); int pcm_chn_destroy(struct pcm_channel *ch); int pcm_chn_add(struct snddev_info *d, struct pcm_channel *ch); int pcm_chn_remove(struct snddev_info *d, struct pcm_channel *ch); int pcm_addchan(device_t dev, int dir, kobj_class_t cls, void *devinfo); unsigned int pcm_getbuffersize(device_t dev, unsigned int minbufsz, unsigned int deflt, unsigned int maxbufsz); int pcm_register(device_t dev, void *devinfo, int numplay, int numrec); int pcm_unregister(device_t dev); int pcm_setstatus(device_t dev, char *str); u_int32_t pcm_getflags(device_t dev); void pcm_setflags(device_t dev, u_int32_t val); void *pcm_getdevinfo(device_t dev); int snd_setup_intr(device_t dev, struct resource *res, int flags, driver_intr_t hand, void *param, void **cookiep); void *snd_mtxcreate(const char *desc, const char *type); void snd_mtxfree(void *m); void snd_mtxassert(void *m); #define snd_mtxlock(m) mtx_lock(m) #define snd_mtxunlock(m) mtx_unlock(m) typedef int (*sndstat_handler)(struct sbuf *s, device_t dev, int verbose); int sndstat_acquire(struct thread *td); int sndstat_release(struct thread *td); int sndstat_register(device_t dev, char *str, sndstat_handler handler); int sndstat_registerfile(char *str); int sndstat_unregister(device_t dev); int sndstat_unregisterfile(char *str); #define SND_DECLARE_FILE(version) \ _SND_DECLARE_FILE(__LINE__, version) #define _SND_DECLARE_FILE(uniq, version) \ __SND_DECLARE_FILE(uniq, version) #define __SND_DECLARE_FILE(uniq, version) \ static char sndstat_vinfo[] = version; \ SYSINIT(sdf_ ## uniq, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sndstat_registerfile, sndstat_vinfo); \ SYSUNINIT(sdf_ ## uniq, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sndstat_unregisterfile, sndstat_vinfo); /* usage of flags in device config entry (config file) */ #define DV_F_DRQ_MASK 0x00000007 /* mask for secondary drq */ #define DV_F_DUAL_DMA 0x00000010 /* set to use secondary dma channel */ /* ought to be made obsolete but still used by mss */ #define DV_F_DEV_MASK 0x0000ff00 /* force device type/class */ #define DV_F_DEV_SHIFT 8 /* force device type/class */ /* * this is rather kludgey- we need to duplicate these struct def'ns from sound.c * so that the macro versions of pcm_{,un}lock can dereference them. * we also have to do this now makedev() has gone away. */ struct snddev_info { struct { struct { SLIST_HEAD(, pcm_channel) head; struct { SLIST_HEAD(, pcm_channel) head; } busy; struct { SLIST_HEAD(, pcm_channel) head; } opened; } pcm; } channels; TAILQ_HEAD(dsp_cdevinfo_linkhead, dsp_cdevinfo) dsp_cdevinfo_pool; struct snd_clone *clones; unsigned devcount, playcount, reccount, pvchancount, rvchancount ; unsigned flags; int inprog; unsigned int bufsz; void *devinfo; device_t dev; char status[SND_STATUSLEN]; struct mtx *lock; struct cdev *mixer_dev; uint32_t pvchanrate, pvchanformat; uint32_t rvchanrate, rvchanformat; int32_t eqpreamp; struct sysctl_ctx_list play_sysctl_ctx, rec_sysctl_ctx; struct sysctl_oid *play_sysctl_tree, *rec_sysctl_tree; struct cv cv; }; void sound_oss_sysinfo(oss_sysinfo *); int sound_oss_card_info(oss_card_info *); #define PCM_LOCKOWNED(d) mtx_owned((d)->lock) #define PCM_LOCK(d) mtx_lock((d)->lock) #define PCM_UNLOCK(d) mtx_unlock((d)->lock) #define PCM_TRYLOCK(d) mtx_trylock((d)->lock) #define PCM_LOCKASSERT(d) mtx_assert((d)->lock, MA_OWNED) #define PCM_UNLOCKASSERT(d) mtx_assert((d)->lock, MA_NOTOWNED) /* * For PCM_[WAIT | ACQUIRE | RELEASE], be sure to surround these * with PCM_LOCK/UNLOCK() sequence, or I'll come to gnaw upon you! */ #ifdef SND_DIAGNOSTIC #define PCM_WAIT(x) do { \ if (!PCM_LOCKOWNED(x)) \ panic("%s(%d): [PCM WAIT] Mutex not owned!", \ __func__, __LINE__); \ while ((x)->flags & SD_F_BUSY) { \ if (snd_verbose > 3) \ device_printf((x)->dev, \ "%s(%d): [PCM WAIT] calling cv_wait().\n", \ __func__, __LINE__); \ cv_wait(&(x)->cv, (x)->lock); \ } \ } while (0) #define PCM_ACQUIRE(x) do { \ if (!PCM_LOCKOWNED(x)) \ panic("%s(%d): [PCM ACQUIRE] Mutex not owned!", \ __func__, __LINE__); \ if ((x)->flags & SD_F_BUSY) \ panic("%s(%d): [PCM ACQUIRE] " \ "Trying to acquire BUSY cv!", __func__, __LINE__); \ (x)->flags |= SD_F_BUSY; \ } while (0) #define PCM_RELEASE(x) do { \ if (!PCM_LOCKOWNED(x)) \ panic("%s(%d): [PCM RELEASE] Mutex not owned!", \ __func__, __LINE__); \ if ((x)->flags & SD_F_BUSY) { \ (x)->flags &= ~SD_F_BUSY; \ if ((x)->cv.cv_waiters != 0) { \ if ((x)->cv.cv_waiters > 1 && snd_verbose > 3) \ device_printf((x)->dev, \ "%s(%d): [PCM RELEASE] " \ "cv_waiters=%d > 1!\n", \ __func__, __LINE__, \ (x)->cv.cv_waiters); \ cv_broadcast(&(x)->cv); \ } \ } else \ panic("%s(%d): [PCM RELEASE] Releasing non-BUSY cv!", \ __func__, __LINE__); \ } while (0) /* Quick version, for shorter path. */ #define PCM_ACQUIRE_QUICK(x) do { \ if (PCM_LOCKOWNED(x)) \ panic("%s(%d): [PCM ACQUIRE QUICK] Mutex owned!", \ __func__, __LINE__); \ PCM_LOCK(x); \ PCM_WAIT(x); \ PCM_ACQUIRE(x); \ PCM_UNLOCK(x); \ } while (0) #define PCM_RELEASE_QUICK(x) do { \ if (PCM_LOCKOWNED(x)) \ panic("%s(%d): [PCM RELEASE QUICK] Mutex owned!", \ __func__, __LINE__); \ PCM_LOCK(x); \ PCM_RELEASE(x); \ PCM_UNLOCK(x); \ } while (0) #define PCM_BUSYASSERT(x) do { \ if (!((x) != NULL && ((x)->flags & SD_F_BUSY))) \ panic("%s(%d): [PCM BUSYASSERT] " \ "Failed, snddev_info=%p", __func__, __LINE__, x); \ } while (0) #define PCM_GIANT_ENTER(x) do { \ int _pcm_giant = 0; \ if (PCM_LOCKOWNED(x)) \ panic("%s(%d): [GIANT ENTER] PCM lock owned!", \ __func__, __LINE__); \ if (mtx_owned(&Giant) != 0 && snd_verbose > 3) \ device_printf((x)->dev, \ "%s(%d): [GIANT ENTER] Giant owned!\n", \ __func__, __LINE__); \ if (!((x)->flags & SD_F_MPSAFE) && mtx_owned(&Giant) == 0) \ do { \ mtx_lock(&Giant); \ _pcm_giant = 1; \ } while (0) #define PCM_GIANT_EXIT(x) do { \ if (PCM_LOCKOWNED(x)) \ panic("%s(%d): [GIANT EXIT] PCM lock owned!", \ __func__, __LINE__); \ if (!(_pcm_giant == 0 || _pcm_giant == 1)) \ panic("%s(%d): [GIANT EXIT] _pcm_giant screwed!", \ __func__, __LINE__); \ if ((x)->flags & SD_F_MPSAFE) { \ if (_pcm_giant == 1) \ panic("%s(%d): [GIANT EXIT] MPSAFE Giant?", \ __func__, __LINE__); \ if (mtx_owned(&Giant) != 0 && snd_verbose > 3) \ device_printf((x)->dev, \ "%s(%d): [GIANT EXIT] Giant owned!\n", \ __func__, __LINE__); \ } \ if (_pcm_giant != 0) { \ if (mtx_owned(&Giant) == 0) \ panic("%s(%d): [GIANT EXIT] Giant not owned!", \ __func__, __LINE__); \ _pcm_giant = 0; \ mtx_unlock(&Giant); \ } \ } while (0) #else /* SND_DIAGNOSTIC */ #define PCM_WAIT(x) do { \ PCM_LOCKASSERT(x); \ while ((x)->flags & SD_F_BUSY) \ cv_wait(&(x)->cv, (x)->lock); \ } while (0) #define PCM_ACQUIRE(x) do { \ PCM_LOCKASSERT(x); \ KASSERT(!((x)->flags & SD_F_BUSY), \ ("%s(%d): [PCM ACQUIRE] Trying to acquire BUSY cv!", \ __func__, __LINE__)); \ (x)->flags |= SD_F_BUSY; \ } while (0) #define PCM_RELEASE(x) do { \ PCM_LOCKASSERT(x); \ KASSERT((x)->flags & SD_F_BUSY, \ ("%s(%d): [PCM RELEASE] Releasing non-BUSY cv!", \ __func__, __LINE__)); \ (x)->flags &= ~SD_F_BUSY; \ if ((x)->cv.cv_waiters != 0) \ cv_broadcast(&(x)->cv); \ } while (0) /* Quick version, for shorter path. */ #define PCM_ACQUIRE_QUICK(x) do { \ PCM_UNLOCKASSERT(x); \ PCM_LOCK(x); \ PCM_WAIT(x); \ PCM_ACQUIRE(x); \ PCM_UNLOCK(x); \ } while (0) #define PCM_RELEASE_QUICK(x) do { \ PCM_UNLOCKASSERT(x); \ PCM_LOCK(x); \ PCM_RELEASE(x); \ PCM_UNLOCK(x); \ } while (0) #define PCM_BUSYASSERT(x) KASSERT(x != NULL && \ ((x)->flags & SD_F_BUSY), \ ("%s(%d): [PCM BUSYASSERT] " \ "Failed, snddev_info=%p", \ __func__, __LINE__, x)) #define PCM_GIANT_ENTER(x) do { \ int _pcm_giant = 0; \ PCM_UNLOCKASSERT(x); \ if (!((x)->flags & SD_F_MPSAFE) && mtx_owned(&Giant) == 0) \ do { \ mtx_lock(&Giant); \ _pcm_giant = 1; \ } while (0) #define PCM_GIANT_EXIT(x) do { \ PCM_UNLOCKASSERT(x); \ KASSERT(_pcm_giant == 0 || _pcm_giant == 1, \ ("%s(%d): [GIANT EXIT] _pcm_giant screwed!", \ __func__, __LINE__)); \ KASSERT(!((x)->flags & SD_F_MPSAFE) || \ (((x)->flags & SD_F_MPSAFE) && _pcm_giant == 0), \ ("%s(%d): [GIANT EXIT] MPSAFE Giant?", \ __func__, __LINE__)); \ if (_pcm_giant != 0) { \ mtx_assert(&Giant, MA_OWNED); \ _pcm_giant = 0; \ mtx_unlock(&Giant); \ } \ } while (0) #endif /* !SND_DIAGNOSTIC */ #define PCM_GIANT_LEAVE(x) \ PCM_GIANT_EXIT(x); \ } while (0) #ifdef KLD_MODULE #define PCM_KLDSTRING(a) ("kld " # a) #else #define PCM_KLDSTRING(a) "" #endif #endif /* _KERNEL */ #endif /* _OS_H_ */ Index: head/sys/sys/param.h =================================================================== --- head/sys/sys/param.h (revision 282649) +++ head/sys/sys/param.h (revision 282650) @@ -1,362 +1,362 @@ /*- * Copyright (c) 1982, 1986, 1989, 1993 * The Regents of the University of California. All rights reserved. * (c) UNIX System Laboratories, Inc. * All or some portions of this file are derived from material licensed * to the University of California by American Telephone and Telegraph * Co. or Unix System Laboratories, Inc. and are reproduced herein with * the permission of UNIX System Laboratories, Inc. * * 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. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. * * @(#)param.h 8.3 (Berkeley) 4/4/95 * $FreeBSD$ */ #ifndef _SYS_PARAM_H_ #define _SYS_PARAM_H_ #include #define BSD 199506 /* System version (year & month). */ #define BSD4_3 1 #define BSD4_4 1 /* * __FreeBSD_version numbers are documented in the Porter's Handbook. * If you bump the version for any reason, you should update the documentation * there. * Currently this lives here in the doc/ repository: * * head/en_US.ISO8859-1/books/porters-handbook/versions/chapter.xml * * scheme is: Rxx * 'R' is in the range 0 to 4 if this is a release branch or * x.0-CURRENT before RELENG_*_0 is created, otherwise 'R' is * in the range 5 to 9. */ #undef __FreeBSD_version -#define __FreeBSD_version 1100072 /* Master, propagated to newvers */ +#define __FreeBSD_version 1100073 /* Master, propagated to newvers */ /* * __FreeBSD_kernel__ indicates that this system uses the kernel of FreeBSD, * which by definition is always true on FreeBSD. This macro is also defined * on other systems that use the kernel of FreeBSD, such as GNU/kFreeBSD. * * It is tempting to use this macro in userland code when we want to enable * kernel-specific routines, and in fact it's fine to do this in code that * is part of FreeBSD itself. However, be aware that as presence of this * macro is still not widespread (e.g. older FreeBSD versions, 3rd party * compilers, etc), it is STRONGLY DISCOURAGED to check for this macro in * external applications without also checking for __FreeBSD__ as an * alternative. */ #undef __FreeBSD_kernel__ #define __FreeBSD_kernel__ #ifdef _KERNEL #define P_OSREL_SIGWAIT 700000 #define P_OSREL_SIGSEGV 700004 #define P_OSREL_MAP_ANON 800104 #define P_OSREL_MAP_FSTRICT 1100036 #define P_OSREL_MAJOR(x) ((x) / 100000) #endif #ifndef LOCORE #include #endif /* * Machine-independent constants (some used in following include files). * Redefined constants are from POSIX 1003.1 limits file. * * MAXCOMLEN should be >= sizeof(ac_comm) (see ) */ #include #define MAXCOMLEN 19 /* max command name remembered */ #define MAXINTERP PATH_MAX /* max interpreter file name length */ #define MAXLOGNAME 33 /* max login name length (incl. NUL) */ #define MAXUPRC CHILD_MAX /* max simultaneous processes */ #define NCARGS ARG_MAX /* max bytes for an exec function */ #define NGROUPS (NGROUPS_MAX+1) /* max number groups */ #define NOFILE OPEN_MAX /* max open files per process */ #define NOGROUP 65535 /* marker for empty group set member */ #define MAXHOSTNAMELEN 256 /* max hostname size */ #define SPECNAMELEN 63 /* max length of devicename */ /* More types and definitions used throughout the kernel. */ #ifdef _KERNEL #include #include #ifndef LOCORE #include #include #endif #ifndef FALSE #define FALSE 0 #endif #ifndef TRUE #define TRUE 1 #endif #endif #ifndef _KERNEL /* Signals. */ #include #endif /* Machine type dependent parameters. */ #include #ifndef _KERNEL #include #endif #ifndef DEV_BSHIFT #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ #endif #define DEV_BSIZE (1<>PAGE_SHIFT) #endif /* * btodb() is messy and perhaps slow because `bytes' may be an off_t. We * want to shift an unsigned type to avoid sign extension and we don't * want to widen `bytes' unnecessarily. Assume that the result fits in * a daddr_t. */ #ifndef btodb #define btodb(bytes) /* calculates (bytes / DEV_BSIZE) */ \ (sizeof (bytes) > sizeof(long) \ ? (daddr_t)((unsigned long long)(bytes) >> DEV_BSHIFT) \ : (daddr_t)((unsigned long)(bytes) >> DEV_BSHIFT)) #endif #ifndef dbtob #define dbtob(db) /* calculates (db * DEV_BSIZE) */ \ ((off_t)(db) << DEV_BSHIFT) #endif #define PRIMASK 0x0ff #define PCATCH 0x100 /* OR'd with pri for tsleep to check signals */ #define PDROP 0x200 /* OR'd with pri to stop re-entry of interlock mutex */ #define NZERO 0 /* default "nice" */ #define NBBY 8 /* number of bits in a byte */ #define NBPW sizeof(int) /* number of bytes per word (integer) */ #define CMASK 022 /* default file mask: S_IWGRP|S_IWOTH */ #define NODEV (dev_t)(-1) /* non-existent device */ /* * File system parameters and macros. * * MAXBSIZE - Filesystems are made out of blocks of at most MAXBSIZE bytes * per block. MAXBSIZE may be made larger without effecting * any existing filesystems as long as it does not exceed MAXPHYS, * and may be made smaller at the risk of not being able to use * filesystems which require a block size exceeding MAXBSIZE. * * MAXBCACHEBUF - Maximum size of a buffer in the buffer cache. This must * be >= MAXBSIZE and can be set differently for different * architectures by defining it in . * Making this larger allows NFS to do larger reads/writes. * * BKVASIZE - Nominal buffer space per buffer, in bytes. BKVASIZE is the * minimum KVM memory reservation the kernel is willing to make. * Filesystems can of course request smaller chunks. Actual * backing memory uses a chunk size of a page (PAGE_SIZE). * The default value here can be overridden on a per-architecture * basis by defining it in . This should * probably be done to increase its value, when MAXBCACHEBUF is * defined as a larger value in . * * If you make BKVASIZE too small you risk seriously fragmenting * the buffer KVM map which may slow things down a bit. If you * make it too big the kernel will not be able to optimally use * the KVM memory reserved for the buffer cache and will wind * up with too-few buffers. * * The default is 16384, roughly 2x the block size used by a * normal UFS filesystem. */ #define MAXBSIZE 65536 /* must be power of 2 */ #ifndef MAXBCACHEBUF #define MAXBCACHEBUF MAXBSIZE /* must be a power of 2 >= MAXBSIZE */ #endif #ifndef BKVASIZE #define BKVASIZE 16384 /* must be power of 2 */ #endif #define BKVAMASK (BKVASIZE-1) /* * MAXPATHLEN defines the longest permissible path length after expanding * symbolic links. It is used to allocate a temporary buffer from the buffer * pool in which to do the name expansion, hence should be a power of two, * and must be less than or equal to MAXBSIZE. MAXSYMLINKS defines the * maximum number of symbolic links that may be expanded in a path name. * It should be set high enough to allow all legitimate uses, but halt * infinite loops reasonably quickly. */ #define MAXPATHLEN PATH_MAX #define MAXSYMLINKS 32 /* Bit map related macros. */ #define setbit(a,i) (((unsigned char *)(a))[(i)/NBBY] |= 1<<((i)%NBBY)) #define clrbit(a,i) (((unsigned char *)(a))[(i)/NBBY] &= ~(1<<((i)%NBBY))) #define isset(a,i) \ (((const unsigned char *)(a))[(i)/NBBY] & (1<<((i)%NBBY))) #define isclr(a,i) \ ((((const unsigned char *)(a))[(i)/NBBY] & (1<<((i)%NBBY))) == 0) /* Macros for counting and rounding. */ #ifndef howmany #define howmany(x, y) (((x)+((y)-1))/(y)) #endif #define nitems(x) (sizeof((x)) / sizeof((x)[0])) #define rounddown(x, y) (((x)/(y))*(y)) #define rounddown2(x, y) ((x)&(~((y)-1))) /* if y is power of two */ #define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) /* to any y */ #define roundup2(x, y) (((x)+((y)-1))&(~((y)-1))) /* if y is powers of two */ #define powerof2(x) ((((x)-1)&(x))==0) /* Macros for min/max. */ #define MIN(a,b) (((a)<(b))?(a):(b)) #define MAX(a,b) (((a)>(b))?(a):(b)) #ifdef _KERNEL /* * Basic byte order function prototypes for non-inline functions. */ #ifndef LOCORE #ifndef _BYTEORDER_PROTOTYPED #define _BYTEORDER_PROTOTYPED __BEGIN_DECLS __uint32_t htonl(__uint32_t); __uint16_t htons(__uint16_t); __uint32_t ntohl(__uint32_t); __uint16_t ntohs(__uint16_t); __END_DECLS #endif #endif #ifndef lint #ifndef _BYTEORDER_FUNC_DEFINED #define _BYTEORDER_FUNC_DEFINED #define htonl(x) __htonl(x) #define htons(x) __htons(x) #define ntohl(x) __ntohl(x) #define ntohs(x) __ntohs(x) #endif /* !_BYTEORDER_FUNC_DEFINED */ #endif /* lint */ #endif /* _KERNEL */ /* * Scale factor for scaled integers used to count %cpu time and load avgs. * * The number of CPU `tick's that map to a unique `%age' can be expressed * by the formula (1 / (2 ^ (FSHIFT - 11))). The maximum load average that * can be calculated (assuming 32 bits) can be closely approximated using * the formula (2 ^ (2 * (16 - FSHIFT))) for (FSHIFT < 15). * * For the scheduler to maintain a 1:1 mapping of CPU `tick' to `%age', * FSHIFT must be at least 11; this gives us a maximum load avg of ~1024. */ #define FSHIFT 11 /* bits to right of fixed binary point */ #define FSCALE (1<> (PAGE_SHIFT - DEV_BSHIFT)) #define ctodb(db) /* calculates pages to devblks */ \ ((db) << (PAGE_SHIFT - DEV_BSHIFT)) /* * Old spelling of __containerof(). */ #define member2struct(s, m, x) \ ((struct s *)(void *)((char *)(x) - offsetof(struct s, m))) /* * Access a variable length array that has been declared as a fixed * length array. */ #define __PAST_END(array, offset) (((__typeof__(*(array)) *)(array))[offset]) #endif /* _SYS_PARAM_H_ */