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[src/trunk]: src/usr.sbin/bta2dpd/bta2dpd Intoduce "-n" switch.



details:   https://anonhg.NetBSD.org/src/rev/1e68c57a5156
branches:  trunk
changeset: 981298:1e68c57a5156
user:      nat <nat%NetBSD.org@localhost>
date:      Sun Mar 07 13:09:43 2021 +0000

description:
Intoduce "-n" switch.

Running btat2dpd with "-n" especially for use with pad(4) will stop bta2dpd
from exiting upon a read error from pad(4) devices.

This is to compenstate for the behaviour in NetBSD current that pad(4) will
no longer output 0's when its corresponding audio(4) device is not active.

I believe that this new pad(4) behaviour is not present in -9 and -8.

While here I've improved its function as a daemon and it should reconnect to
bluetooth speakers when they are disconnected/reconnected.

Reported and tested by reinoud@ and maya@

diffstat:

 usr.sbin/bta2dpd/bta2dpd/bta2dpd.8 |   8 ++++-
 usr.sbin/bta2dpd/bta2dpd/bta2dpd.c |  46 ++++++++++++++++++++++++++-----------
 2 files changed, 38 insertions(+), 16 deletions(-)

diffs (165 lines):

diff -r a40e8bd8d268 -r 1e68c57a5156 usr.sbin/bta2dpd/bta2dpd/bta2dpd.8
--- a/usr.sbin/bta2dpd/bta2dpd/bta2dpd.8        Sun Mar 07 12:30:03 2021 +0000
+++ b/usr.sbin/bta2dpd/bta2dpd/bta2dpd.8        Sun Mar 07 13:09:43 2021 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: bta2dpd.8,v 1.4 2019/07/27 20:10:29 nakayama Exp $
+.\"    $NetBSD: bta2dpd.8,v 1.5 2021/03/07 13:09:43 nat Exp $
 .\"
 .\" Copyright (c) 2015 - 2016  Nathanial Sloss <nathanialsloss%yahoo.com.au@localhost>
 .\" All rights reserved.
@@ -37,7 +37,7 @@
 .Nd Bluetooth Advanced Audio Distribution Profile daemon
 .Sh SYNOPSIS
 .Nm
-.Op Fl \&Dv
+.Op Fl \&Dnv
 .Op Fl A Ar bitpool_allocation
 .Op Fl B Ar bitpool
 .Op Fl b Ar blocks
@@ -107,6 +107,10 @@
 option and the maximum bitpool for your device will be printed to stdout.
 .It Fl D
 Run in the background.
+.It Fl n
+Do not close conection on end of file (EOF).
+Useful for
+.Xr pad 4 .
 .It Fl d Ar device
 Local device address.
 May be given as BDADDR or device name.
diff -r a40e8bd8d268 -r 1e68c57a5156 usr.sbin/bta2dpd/bta2dpd/bta2dpd.c
--- a/usr.sbin/bta2dpd/bta2dpd/bta2dpd.c        Sun Mar 07 12:30:03 2021 +0000
+++ b/usr.sbin/bta2dpd/bta2dpd/bta2dpd.c        Sun Mar 07 13:09:43 2021 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: bta2dpd.c,v 1.7 2020/05/31 06:17:23 nat Exp $ */
+/* $NetBSD: bta2dpd.c,v 1.8 2021/03/07 13:09:43 nat Exp $ */
 
 /*-
  * Copyright (c) 2015 - 2016 Nathanial Sloss <nathanialsloss%yahoo.com.au@localhost>
@@ -220,12 +220,14 @@
 struct l2cap_info      info;
 static bool            runasDaemon;
 static bool            asSpeaker;
+static bool            dontStop;
 static bool            initDiscover;   /* initiate avdtp discover */
 static bool            verbose;        /* copy to stdout */
 static bool            test_mode;      /* copy to stdout */
 static uint8_t         channel_mode = MODE_STEREO;
 static uint8_t         alloc_method = ALLOC_LOUDNESS;
 static uint8_t         frequency = FREQ_44_1K;
+static int             freqnum = 44100;
 static uint8_t         freqs[4];
 static uint8_t         blocks_config[4];
 static uint8_t         channel_config[4];
@@ -252,6 +254,7 @@
 static void do_interrupt(int, short, void *);
 static void do_recv(int, short, void *);
 static void do_ctlreq(int, short, void *);
+static void bt_exit(int fd);
 
 #define log_err(st, fmt, args...)      \
        do { syslog(LOG_ERR, fmt, ##args); exit(st); } while (0)
@@ -262,12 +265,13 @@
 int
 main(int ac, char *av[])
 {
-       int enc, i, n, m, l, j, k, o, ch, freqnum, blocksnum;
+       int enc, i, n, m, l, j, k, o, ch, blocksnum;
        u_int tmpbitpool;
        bdaddr_copy(&info.laddr, BDADDR_ANY);
 
        sc = hc = -1;
        verbose = asSpeaker = test_mode = initDiscover = runasDaemon = false;
+       dontStop = false;
        n = m = l = i = j = o = 0;
        freqs[0] = frequency;
        channel_config[0] = channel_mode;
@@ -276,7 +280,8 @@
        alloc_config[0] = alloc_method;
        channel_config[0] = channel_mode;
 
-       while ((ch = getopt(ac, av, "A:a:B:b:Dd:e:f:IKM:m:p:r:tV:v")) != EOF) {
+       while ((ch = getopt(ac, av, "A:a:B:b:Dd:e:f:IKnM:m:p:r:tV:v")) !=
+           EOF) {
                switch (ch) {
                case 'A':
                        for (k = 0; k < (int)strlen(optarg); k++) {
@@ -405,6 +410,9 @@
                                errx(EXIT_FAILURE, "%s: unknown mode", optarg);
 
                        break;
+               case 'n':
+                       dontStop = true;
+                       break;
                case 'p':
                        l2cap_psm = (uint16_t)atoi(optarg);
                        break;
@@ -556,7 +564,7 @@
                audfile = -1;
        }
 
-       if (asSpeaker)
+       if (runasDaemon)
                goto again;
 
        return EXIT_SUCCESS;
@@ -566,9 +574,9 @@
 usage(void)
 {
        fprintf(stderr,
-           "usage:\t%s [-v] [-D] [-d device] [-m mode] [-r rate] [-M mtu]\n"
-           "\t\t[-V volume] [-f mode] [-b blocks] [-e bands] [-A alloc]\n"
-           "\t\t[-B bitpool] -a address files...\n"
+           "usage:\t%s [-v] [-D] [-n] [-d device] [-m mode] [-r rate]\n"
+           "\t\t[-M mtu] [-V volume] [-f mode] [-b blocks] [-e bands]\n"
+           "\t\t[-A alloc] [-B bitpool] -a address files...\n"
            "\t%s [-v] [-D] [-d device] [-m mode] [-p psm] [-B bitpool]\n"
            "\t\t[-a address] [-M mtu] [-r rate] [-I] -K file\n"
            "\t%s -t [-v] [-K] [-r rate] [-M mtu] [-V volume] [-f mode]\n"
@@ -626,6 +634,17 @@
 }
 
 static void
+bt_exit(int fd)
+{
+       if (!runasDaemon) {
+                       close(fd);
+                       fd = -1;
+                       exit(1);
+       }
+       /* Not reached */
+}
+
+static void
 do_ctlreq(int fd, short ev, void *arg)
 {
        bool isCommand;
@@ -825,9 +844,7 @@
 
        if (len < 0) {
                event_del(&recv_ev);
-               close(fd);
-               fd = -1;
-               exit(1);
+               bt_exit(fd);
        }
 }
 
@@ -844,12 +861,13 @@
        len = stream(fd, sc, channel_mode, frequency, bands, blocks,
            alloc_method, bitpool, mtu, volume);
 
+
 next_file:
-       if (len == -1 && currentFileInd >= numfiles -1) {
+       if (dontStop && len == -1)
+               usleep(1);
+       else if (len == -1 && currentFileInd >= numfiles -1) {
                event_del(&interrupt_ev);
-               close(fd);
-               fd = -1;
-               exit(1);
+               bt_exit(fd);
        } else if (len == -1) {
                close(fd);
                currentFileInd++;



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