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[src/netbsd-8]: src/sys/dev Pull up following revision(s) (requested by nat i...



details:   https://anonhg.NetBSD.org/src/rev/f83b8114df53
branches:  netbsd-8
changeset: 851652:f83b8114df53
user:      martin <martin%NetBSD.org@localhost>
date:      Mon Apr 16 14:11:44 2018 +0000

description:
Pull up following revision(s) (requested by nat in ticket #759):

        sys/dev/audio.c: revision 1.367
        sys/dev/audio.c: revision 1.369
        sys/dev/audio.c: revision 1.376 (patch)
        sys/dev/audio.c: revision 1.377 (patch)
        sys/dev/audio.c: revision 1.378
        sys/dev/audio.c: revision 1.382 (patch)
        sys/dev/audio.c: revision 1.383 (patch)
        sys/dev/audio.c: revision 1.384
        sys/dev/audio.c: revision 1.388
        sys/dev/audio.c: revision 1.389
        sys/dev/audio.c: revision 1.395
        sys/dev/audio.c: revision 1.396 (patch)
        sys/dev/audio.c: revision 1.397
        sys/dev/audio.c: revision 1.403
        sys/dev/audio.c: revision 1.451
        sys/dev/audio.c: revision 1.452
        sys/dev/audiovar.h: revision 1.59 (patch)
        sys/dev/aurateconv.c: revision 1.21 (patch)
        sys/dev/auconv.c: revision 1.31 (patch)
        sys/dev/audiovar.h: revision 1.60 (patch)

Broadcast all conditional variables if in being deactivated so no readers
or writers get stuck.

Fix a panic caused by opening pad(4)'s mixer before the corresponding
audio device has attached.

Addresses PR kern/52424.

Improve audio_set_vchan_defaults().
- Correct confused input/output parameters.
- Remove sc->{sc_channels, sc_precision, sc_frequency}.  They are
  the same as sc->sc_vchan_params.{channels, precision, sample_rate}.
The input parameter of audio_set_vchan_defaults() is now only
sc->sc_vchan_params.

Fix PR kern/52437

const-ify.

0 -> NULL in audioattach()

"bits" sounds better than "name" for argument name.
I feel expression (name / NBBY) a little strange.

The audio module will now compile with WARNS=5.

Typo in debug message.

Remove a duplicated line.

Add missing initialization of sc_rfilters in audioattach().

Remove dead codes.

sc->sc_opens never changes in this loop and as a result of
previous sc_audiochan cleanup "sc_opens == 0" is the same as
"sc_audiochan is empty".

Clean up audio_allocbufs().

As a result of sc_audiochan cleanup, it is easy to access sc_hwvc.

Clean up audio_open().

As a result of sc_audiochan cleanup, this loop is the same as last + 1.
hw_if->set_params is mandatory, so it will never be NULL.

CID-1427745: kill possible buffer overflows.

Revert my wrong r1.380 and add a comment instead.

diffstat:

 sys/dev/auconv.c     |    6 +-
 sys/dev/audio.c      |  161 ++++++++++++++++++++++++++------------------------
 sys/dev/audiovar.h   |    6 +-
 sys/dev/aurateconv.c |   16 ++--
 4 files changed, 99 insertions(+), 90 deletions(-)

diffs (truncated from 555 to 300 lines):

diff -r 4e7860923ff1 -r f83b8114df53 sys/dev/auconv.c
--- a/sys/dev/auconv.c  Mon Apr 16 13:31:33 2018 +0000
+++ b/sys/dev/auconv.c  Mon Apr 16 14:11:44 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: auconv.c,v 1.26.2.4 2018/01/09 19:35:03 snj Exp $      */
+/*     $NetBSD: auconv.c,v 1.26.2.5 2018/04/16 14:11:44 martin Exp $   */
 
 /*
  * Copyright (c) 1996 The NetBSD Foundation, Inc.
@@ -35,7 +35,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: auconv.c,v 1.26.2.4 2018/01/09 19:35:03 snj Exp $");
+__KERNEL_RCSID(0, "$NetBSD: auconv.c,v 1.26.2.5 2018/04/16 14:11:44 martin Exp $");
 
 #include <sys/types.h>
 #include <sys/audioio.h>
@@ -2115,7 +2115,7 @@
                        if (formats[i].frequency[1] > maxrate)
                                maxrate = formats[i].frequency[1];
                } else {
-                       for (j = 0; j < formats[i].frequency_type; j++) {
+                       for (j = 0; j < (int)formats[i].frequency_type; j++) {
                                if (formats[i].frequency[j] < minrate)
                                        minrate = formats[i].frequency[j];
                                if (formats[i].frequency[j] > maxrate)
diff -r 4e7860923ff1 -r f83b8114df53 sys/dev/audio.c
--- a/sys/dev/audio.c   Mon Apr 16 13:31:33 2018 +0000
+++ b/sys/dev/audio.c   Mon Apr 16 14:11:44 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: audio.c,v 1.357.2.10 2018/01/15 00:08:55 snj Exp $     */
+/*     $NetBSD: audio.c,v 1.357.2.11 2018/04/16 14:11:44 martin Exp $  */
 
 /*-
  * Copyright (c) 2016 Nathanial Sloss <nathanialsloss%yahoo.com.au@localhost>
@@ -148,7 +148,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.357.2.10 2018/01/15 00:08:55 snj Exp $");
+__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.357.2.11 2018/04/16 14:11:44 martin Exp $");
 
 #ifdef _KERNEL_OPT
 #include "audio.h"
@@ -209,7 +209,7 @@
 
 #define PREFILL_BLOCKS 3       /* no. audioblocks required to start stream */
 #define ROUNDSIZE(x)   (x) &= -16      /* round to nice boundary */
-#define SPECIFIED(x)   ((x) != ~0)
+#define SPECIFIED(x)   ((int)(x) != ~0)
 #define SPECIFIED_CH(x)        ((x) != (u_char)~0)
 
 /* #define AUDIO_PM_IDLE */
@@ -282,10 +282,10 @@
 static void    audio_setblksize(struct audio_softc *,
                                 struct virtual_channel *, int, int);
 int    audio_calc_blksize(struct audio_softc *, const audio_params_t *);
-void   audio_fill_silence(struct audio_params *, uint8_t *, int);
+void   audio_fill_silence(const struct audio_params *, uint8_t *, int);
 int    audio_silence_copyout(struct audio_softc *, int, struct uio *);
 
-static int     audio_allocbufs(struct audio_softc *, struct virtual_channel *);
+static int     audio_allocbufs(struct audio_softc *);
 void   audio_init_ringbuffer(struct audio_softc *,
                              struct audio_ringbuffer *, int);
 int    audio_initbufs(struct audio_softc *, struct virtual_channel *);
@@ -396,7 +396,7 @@
 static int audio_set_params (struct audio_softc *, int, int,
                 audio_params_t *, audio_params_t *,
                 stream_filter_list_t *, stream_filter_list_t *,
-                struct virtual_channel *);
+                const struct virtual_channel *);
 static int
 audio_query_encoding(struct audio_softc *, struct audio_encoding *);
 static int audio_set_vchan_defaults(struct audio_softc *, u_int);
@@ -527,8 +527,9 @@
        vc->sc_open = 0;
        vc->sc_mode = 0;
        vc->sc_npfilters = 0;
-       memset(vc->sc_pfilters, 0,
-           sizeof(vc->sc_pfilters));
+       vc->sc_nrfilters = 0;
+       memset(vc->sc_pfilters, 0, sizeof(vc->sc_pfilters));
+       memset(vc->sc_rfilters, 0, sizeof(vc->sc_rfilters));
        vc->sc_lastinfovalid = false;
        vc->sc_swvol = 255;
        vc->sc_recswvol = 255;
@@ -545,7 +546,7 @@
        cv_init(&sc->sc_condvar,"play");
        cv_init(&sc->sc_rcondvar,"record");
 
-       if (hwp == 0 || hwp->get_locks == 0) {
+       if (hwp == NULL || hwp->get_locks == NULL) {
                aprint_error(": missing method\n");
                panic("audioattach");
        }
@@ -553,17 +554,17 @@
        hwp->get_locks(hdlp, &sc->sc_intr_lock, &sc->sc_lock);
 
 #ifdef DIAGNOSTIC
-       if (hwp->query_encoding == 0 ||
-           hwp->set_params == 0 ||
-           (hwp->start_output == 0 && hwp->trigger_output == 0) ||
-           (hwp->start_input == 0 && hwp->trigger_input == 0) ||
-           hwp->halt_output == 0 ||
-           hwp->halt_input == 0 ||
-           hwp->getdev == 0 ||
-           hwp->set_port == 0 ||
-           hwp->get_port == 0 ||
-           hwp->query_devinfo == 0 ||
-           hwp->get_props == 0) {
+       if (hwp->query_encoding == NULL ||
+           hwp->set_params == NULL ||
+           (hwp->start_output == NULL && hwp->trigger_output == NULL) ||
+           (hwp->start_input == NULL && hwp->trigger_input == NULL) ||
+           hwp->halt_output == NULL ||
+           hwp->halt_input == NULL ||
+           hwp->getdev == NULL ||
+           hwp->set_port == NULL ||
+           hwp->get_port == NULL ||
+           hwp->query_devinfo == NULL ||
+           hwp->get_props == NULL) {
                aprint_error(": missing method\n");
                return;
        }
@@ -595,7 +596,7 @@
        aprint_normal("\n");
 
        mutex_enter(sc->sc_lock);
-       if (audio_allocbufs(sc, vc) != 0) {
+       if (audio_allocbufs(sc) != 0) {
                aprint_error_dev(sc->sc_dev,
                        "could not allocate ring buffer\n");
                mutex_exit(sc->sc_lock);
@@ -869,6 +870,10 @@
                sc->sc_dying = true;
                mutex_enter(sc->sc_intr_lock);
                cv_broadcast(&sc->sc_condvar);
+               cv_broadcast(&sc->sc_rcondvar);
+               cv_broadcast(&sc->sc_wchan);
+               cv_broadcast(&sc->sc_rchan);
+               cv_broadcast(&sc->sc_lchan);
                mutex_exit(sc->sc_intr_lock);
                mutex_exit(sc->sc_lock);
                return 0;
@@ -1125,10 +1130,13 @@
 
 /* Allocate all ring buffers. called from audioattach() */
 static int
-audio_allocbufs(struct audio_softc *sc, struct virtual_channel *vc)
+audio_allocbufs(struct audio_softc *sc)
 {
+       struct virtual_channel *vc;
        int error;
 
+       vc = sc->sc_hwvc;
+
        sc->sc_mixring.sc_mpr.s.start = NULL;
        vc->sc_mpr.s.start = NULL;
        sc->sc_mixring.sc_mrr.s.start = NULL;
@@ -1224,7 +1232,7 @@
                    false, 0);
                if (error) {
                        uvm_unmap(kernel_map, vstart, vstart + vsize);
-                       uao_detach(r->uobj);
+                       /* uvm_unmap also detach uobj */
                        r->uobj = NULL;         /* paranoia */
                        return error;
                }
@@ -1420,7 +1428,7 @@
 
 #ifdef AUDIO_DEBUG
        if (audiodebug) {
-               printf("%s: HW-buffer=%p pustream=%p\n",
+               printf("%s: HW-buffer=%p rustream=%p\n",
                       __func__, &vc->sc_mrr.s, vc->sc_rustream);
                audio_print_params("[HW]", &vc->sc_mrr.s.param);
                for (i = 0; i < rfilters->req_size; i++) {
@@ -1834,7 +1842,6 @@
 
        if ((error = audio_enter(dev, rw, &sc)) != 0)
                return error;
-       chan = fp->f_audioctx;
 
        switch (AUDIODEV(dev)) {
        case SOUND_DEVICE:
@@ -2005,7 +2012,7 @@
        blksize = rp->blksize;
        if (blksize < AUMINBLK)
                blksize = AUMINBLK;
-       if (blksize > rp->s.bufsize / AUMINNOBLK)
+       if (blksize > (int)(rp->s.bufsize / AUMINNOBLK))
                blksize = rp->s.bufsize / AUMINNOBLK;
        ROUNDSIZE(blksize);
        DPRINTF(("audio_init_ringbuffer: MI blksize=%d\n", blksize));
@@ -2154,12 +2161,11 @@
        hw = sc->hw_if;
        if (hw == NULL)
                return ENXIO;
+
        n = 1;
-       SIMPLEQ_FOREACH(chan, &sc->sc_audiochan, entries) {
+       chan = SIMPLEQ_LAST(&sc->sc_audiochan, audio_chan, entries);
+       if (chan != NULL)
                n = chan->chan + 1;
-       }
-       if (n < 0)
-               return ENOMEM;
 
        chan = kmem_zalloc(sizeof(struct audio_chan), KM_SLEEP);
        if (sc->sc_usemixer)
@@ -2377,8 +2383,8 @@
 audio_drain(struct audio_softc *sc, struct virtual_channel *vc)
 {
        struct audio_ringbuffer *cb;
-       int error, drops;
-       int cc, i, used;
+       int error, cc, i, used;
+       uint drops;
        bool hw = false;
 
        KASSERT(mutex_owned(sc->sc_lock));
@@ -2569,7 +2575,8 @@
        struct audio_ringbuffer *cb;
        const uint8_t *outp;
        uint8_t *inp;
-       int error, used, cc, n;
+       int error, used, n;
+       uint cc;
 
        KASSERT(mutex_owned(sc->sc_lock));
 
@@ -2750,7 +2757,7 @@
 }
 
 void
-audio_fill_silence(struct audio_params *params, uint8_t *p, int n)
+audio_fill_silence(const struct audio_params *params, uint8_t *p, int n)
 {
        uint8_t auzero0, auzero1;
        int nfill;
@@ -3498,7 +3505,7 @@
        cb = &vc->sc_mpr;
 #endif
 
-       if (len > cb->s.bufsize || *offp > cb->s.bufsize - len)
+       if (len > cb->s.bufsize || *offp > (uint)(cb->s.bufsize - len))
                return EOVERFLOW;
 
        if (!cb->mmapped) {
@@ -3735,9 +3742,6 @@
 
        blksize = sc->sc_mixring.sc_mpr.blksize;
        SIMPLEQ_FOREACH(chan, &sc->sc_audiochan, entries) {
-               if (!sc->sc_opens)
-                       break;          /* ignore interrupt if not open */
-
                vc = chan->vc;
 
                if (!vc->sc_open)
@@ -3953,9 +3957,6 @@
        blksize = sc->sc_mixring.sc_mrr.blksize;
 
        SIMPLEQ_FOREACH(chan, &sc->sc_audiochan, entries) {
-               if (!sc->sc_opens)
-                       break;          /* ignore interrupt if not open */
-
                vc = chan->vc;
 
                if (!(vc->sc_open & AUOPEN_READ))
@@ -4172,12 +4173,12 @@
        ai.play.pause         = false;
        ai.mode               = mode;
 
-       sc->sc_format->encoding = sc->sc_vchan_params.encoding;
-       sc->sc_format->channels = sc->sc_vchan_params.channels;
-       sc->sc_format->precision = sc->sc_vchan_params.precision;
-       sc->sc_format->validbits = sc->sc_vchan_params.precision;
-       sc->sc_format->frequency_type = 1;
-       sc->sc_format->frequency[0] = sc->sc_vchan_params.sample_rate;
+       sc->sc_format[0].encoding = sc->sc_vchan_params.encoding;
+       sc->sc_format[0].channels = sc->sc_vchan_params.channels;
+       sc->sc_format[0].precision = sc->sc_vchan_params.precision;
+       sc->sc_format[0].validbits = sc->sc_vchan_params.precision;
+       sc->sc_format[0].frequency_type = 1;
+       sc->sc_format[0].frequency[0] = sc->sc_vchan_params.sample_rate;
 
        auconv_delete_encodings(sc->sc_encodings);
        error = auconv_create_encodings(sc->sc_format, VAUDIO_NFORMATS,
@@ -4523,7 +4524,7 @@
        int setmode;
        int error;
        int np, nr;
-       unsigned int blks;
+       int blks;
        u_int gain;
        bool rbus, pbus;
        bool cleared, modechange, pausechange;
@@ -5577,9 +5578,9 @@



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