#include <u.h>#include <libc.h>#include <bio.h> static voidusage(void){ fprint(2, "usage: %s [-h hp_safe_volume] [-s sp_safe_volume]\n", argv0); exits("usage");} voidmain(int argc, char **argv){ int hp, sp, lp, cmd, ctl, vol, lastvol, newvol; int debug, hpsafevol, spsafevol; u32int x, y[4], has, had, c; char *s, *a[16], tmp[32]; Biobuf *b; debug = 0; hpsafevol = 65; spsafevol = 70; ARGBEGIN{ case 'd': debug++; break; case 'h': hpsafevol = atoi(EARGF(usage())); break; case 's': spsafevol = atoi(EARGF(usage())); break; default: usage(); }ARGEND if((cmd = open("/dev/hdacmd", ORDWR)) < 0) sysfatal("%r"); if((ctl = open("/dev/audioctl", OWRITE)) < 0) sysfatal("%r"); if((vol = open("/dev/volume", ORDWR)) < 0) sysfatal("%r"); if((b = Bopen("/dev/audiostat", OREAD)) == nil) sysfatal("%r"); sp = -1; hp = -1; lp = -1; while((sp < 0 || hp < 0) && (s = Brdline(b, '\n')) != nil){ s[Blinelen(b)-1] = 0; if(tokenize(s, a, nelem(a)) < 8) continue; if(strcmp(a[0], "pin") != 0 || (strcmp(a[2], "out") != 0 && strcmp(a[2], "inout") != 0)) continue; if(strcmp(a[3], "jack") == 0 && strcmp(a[6], "hpout") == 0){ hp = atoi(a[1]); if(debug) fprint(2, "hpout pin %d\n", hp); } if(strcmp(a[3], "fix") == 0){ if(strcmp(a[6], "speaker") == 0){ sp = atoi(a[1]); if(debug) fprint(2, "speaker pin %d\n", sp); }else if(strcmp(a[4], "int") == 0){ /* fallback for built-in speakers/etc */ lp = atoi(a[1]); if(debug) fprint(2, "speaker fallback pin %d\n", lp); } } } Bterm(b); if(sp < 0) sp = lp; if(sp < 0 || hp < 0){ fprint(2, "couldn't detect pins\n"); exits("pins"); } x = 0x0f0900 | (hp<<4)<<16 | (hp>>4)<<24; had = -1; lastvol = (spsafevol < hpsafevol ? spsafevol : hpsafevol)*2/3; for(;;){ c = 0;again: if(write(cmd, &x, 4) != 4 || read(cmd, y, sizeof(y)) < 4) sysfatal("command failed: %r"); has = y[0] & (1<<31); if(has != had){ if(c++ < 2){ sleep(75); goto again; } newvol = lastvol; if(pread(vol, tmp, sizeof(tmp)-1, 0) > 0 && strncmp(tmp, "master ", 7) == 0) lastvol = atoi(tmp+7); if(had == ~0) newvol = lastvol; /* SAVE MY EARS, OK? THANKS */ if(has && newvol > hpsafevol) newvol = hpsafevol; else if(!has && newvol > spsafevol) newvol = spsafevol; if(fprint(ctl, "pin %d", has ? hp : sp) < 0) fprint(2, "vol: %r\n"); if(fprint(vol, "master 0 0") < 0) fprint(2, "vol: %r\n"); sleep(100); if(fprint(vol, "master %d %d", newvol, newvol) < 0) fprint(2, "vol: %r\n"); } had = has; sleep(300); }}
#include <u.h>
#include <libc.h>
#include <bio.h>
static void
usage(void)
{
fprint(2, "usage: %s [-h hp_safe_volume] [-s sp_safe_volume]\n", argv0);
exits("usage");
}
void
main(int argc, char **argv)
{
int hp, sp, lp, cmd, ctl, vol, lastvol, newvol;
int debug, hpsafevol, spsafevol;
u32int x, y[4], has, had, c;
char *s, *a[16], tmp[32];
Biobuf *b;
debug = 0;
hpsafevol = 65;
spsafevol = 70;
ARGBEGIN{
case 'd':
debug++;
break;
case 'h':
hpsafevol = atoi(EARGF(usage()));
break;
case 's':
spsafevol = atoi(EARGF(usage()));
break;
default:
usage();
}ARGEND
if((cmd = open("/dev/hdacmd", ORDWR)) < 0)
sysfatal("%r");
if((ctl = open("/dev/audioctl", OWRITE)) < 0)
sysfatal("%r");
if((vol = open("/dev/volume", ORDWR)) < 0)
sysfatal("%r");
if((b = Bopen("/dev/audiostat", OREAD)) == nil)
sysfatal("%r");
sp = -1;
hp = -1;
lp = -1;
while((sp < 0 || hp < 0) && (s = Brdline(b, '\n')) != nil){
s[Blinelen(b)-1] = 0;
if(tokenize(s, a, nelem(a)) < 8)
continue;
if(strcmp(a[0], "pin") != 0 || (strcmp(a[2], "out") != 0 && strcmp(a[2], "inout") != 0))
continue;
if(strcmp(a[3], "jack") == 0 && strcmp(a[6], "hpout") == 0){
hp = atoi(a[1]);
if(debug) fprint(2, "hpout pin %d\n", hp);
}
if(strcmp(a[3], "fix") == 0){
if(strcmp(a[6], "speaker") == 0){
sp = atoi(a[1]);
if(debug) fprint(2, "speaker pin %d\n", sp);
}else if(strcmp(a[4], "int") == 0){
/* fallback for built-in speakers/etc */
lp = atoi(a[1]);
if(debug) fprint(2, "speaker fallback pin %d\n", lp);
}
}
}
Bterm(b);
if(sp < 0)
sp = lp;
if(sp < 0 || hp < 0){
fprint(2, "couldn't detect pins\n");
exits("pins");
}
x = 0x0f0900 | (hp<<4)<<16 | (hp>>4)<<24;
had = -1;
lastvol = (spsafevol < hpsafevol ? spsafevol : hpsafevol)*2/3;
for(;;){
c = 0;
again:
if(write(cmd, &x, 4) != 4 || read(cmd, y, sizeof(y)) < 4)
sysfatal("command failed: %r");
has = y[0] & (1<<31);
if(has != had){
if(c++ < 2){
sleep(75);
goto again;
}
newvol = lastvol;
if(pread(vol, tmp, sizeof(tmp)-1, 0) > 0 && strncmp(tmp, "master ", 7) == 0)
lastvol = atoi(tmp+7);
if(had == ~0)
newvol = lastvol;
/* SAVE MY EARS, OK? THANKS */
if(has && newvol > hpsafevol)
newvol = hpsafevol;
else if(!has && newvol > spsafevol)
newvol = spsafevol;
if(fprint(ctl, "pin %d", has ? hp : sp) < 0)
fprint(2, "vol: %r\n");
if(fprint(vol, "master 0 0") < 0)
fprint(2, "vol: %r\n");
sleep(100);
if(fprint(vol, "master %d %d", newvol, newvol) < 0)
fprint(2, "vol: %r\n");
}
had = has;
sleep(300);
}
}