#include <u.h>
#include <libc.h>
#include <thread.h>
#include "usb.h"
#include "usbaudio.h"
#include "usbaudioctl.h"
int endpt[2] = {-1, -1};
int interface[2] = {-1, -1};
int featureid[2] = {-1, -1};
int selectorid[2] = {-1, -1};
int mixerid[2] = {-1, -1};
int curalt[2] = {-1, -1};
int buttonendpt = -1;
int id;
Device *ad;
Audiocontrol controls[2][Ncontrol] = {
{
[Speed_control] = { "speed", 0, {0}, 0, 44100, Undef},
[Mute_control] = { "mute", 0, {0}, 0, 0, Undef},
[Volume_control] = { "volume", 0, {0}, 0, 0, Undef},
[Bass_control] = { "bass", 0, {0}, 0, 0, Undef},
[Mid_control] = { "mid", 0, {0}, 0, 0, Undef},
[Treble_control] = { "treble", 0, {0}, 0, 0, Undef},
[Equalizer_control] = { "equalizer", 0, {0}, 0, 0, Undef},
[Agc_control] = { "agc", 0, {0}, 0, 0, Undef},
[Delay_control] = { "delay", 0, {0}, 0, 0, Undef},
[Bassboost_control] = { "bassboost", 0, {0}, 0, 0, Undef},
[Loudness_control] = { "loudness", 0, {0}, 0, 0, Undef},
[Channel_control] = { "channels", 0, {0}, 0, 2, Undef},
[Resolution_control] = { "resolution", 0, {0}, 0, 16, Undef},
// [Selector_control] = { "selector", 0, {0}, 0, 0, Undef},
}, {
[Speed_control] = { "speed", 0, {0}, 0, 44100, Undef},
[Mute_control] = { "mute", 0, {0}, 0, 0, Undef},
[Volume_control] = { "volume", 0, {0}, 0, 0, Undef},
[Bass_control] = { "bass", 0, {0}, 0, 0, Undef},
[Mid_control] = { "mid", 0, {0}, 0, 0, Undef},
[Treble_control] = { "treble", 0, {0}, 0, 0, Undef},
[Equalizer_control] = { "equalizer", 0, {0}, 0, 0, Undef},
[Agc_control] = { "agc", 0, {0}, 0, 0, Undef},
[Delay_control] = { "delay", 0, {0}, 0, 0, Undef},
[Bassboost_control] = { "bassboost", 0, {0}, 0, 0, Undef},
[Loudness_control] = { "loudness", 0, {0}, 0, 0, Undef},
[Channel_control] = { "channels", 0, {0}, 0, 2, Undef},
[Resolution_control] = { "resolution", 0, {0}, 0, 16, Undef},
// [Selector_control] = { "selector", 0, {0}, 0, 0, Undef},
}
};
int
setaudioalt(int rec, Audiocontrol *c, int control)
{
if (debug & Dbgcontrol)
fprint(2, "setcontrol %s: Set alt %d\n", c->name, control);
curalt[rec] = control;
if (setupcmd(ad->ep[0], RH2D|Rstandard|Rinterface, SET_INTERFACE, control, interface[rec], nil, 0) < 0){
if (debug & Dbgcontrol) fprint(2, "setcontrol: setupcmd %s failed\n", c->name);
return -1;
}
return control;
}
int
findalt(int rec, int nchan, int res, int speed)
{
Endpt *ep;
Audioalt *a;
Dalt *da;
int i, j, k, retval;
retval = -1;
controls[rec][Channel_control].min = 1000000;
controls[rec][Channel_control].max = 0;
controls[rec][Channel_control].step = Undef;
controls[rec][Resolution_control].min = 1000000;
controls[rec][Resolution_control].max = 0;
controls[rec][Resolution_control].step = Undef;
for (i = 0; i < Nendpt; i++) {
if ((ep = ad->ep[i]) == nil)
continue;
if(ep->csp != CSP(CL_AUDIO, 2, 0))
continue;
if (ep->iface == nil) {
fprint(2, "\tno interface\n");
return 0;
}
if ((rec == Play && (ep->addr & 0x80))
|| (rec == Record && (ep->addr & 0x80) == 0))
continue;
for (j = 0; j < 16; j++) {
if ((da = ep->iface->dalt[j]) == nil || (a = da->devspec) == nil)
continue;
if (a->nchan < controls[rec][Channel_control].min)
controls[rec][Channel_control].min = a->nchan;
if (a->nchan > controls[rec][Channel_control].max)
controls[rec][Channel_control].max = a->nchan;
if (a->res < controls[rec][Resolution_control].min)
controls[rec][Resolution_control].min = a->res;
if (a->res > controls[rec][Resolution_control].max)
controls[rec][Resolution_control].max = a->res;
controls[rec][Channel_control].settable = 1;
controls[rec][Channel_control].readable = 1;
controls[rec][Resolution_control].settable = 1;
controls[rec][Resolution_control].readable = 1;
controls[rec][Speed_control].settable = 1;
controls[rec][Speed_control].readable = 1;
if (a->nchan == nchan && a->res == res){
if(speed == Undef)
retval = j;
else if(a->caps & (has_discfreq|onefreq)){
for(k = 0; k < nelem(a->freqs); k++){
if(a->freqs[k] == speed){
retval = j;
break;
}
}
} else {
if(speed >= a->minfreq && speed <= a->maxfreq)
retval = j;
}
}
}
}
if ((debug & Dbgcontrol) && retval < 0){
fprint(2, "findalt(%d, %d, %d, %d) failed\n", rec, nchan, res, speed);
}
return retval;
}
int
setspeed(int rec, int speed)
{
int ps, n, no, dist, i;
Audioalt *a;
Dalt *da;
Endpt *ep;
char cmdbuf[32];
uchar buf[3];
if (curalt[rec] < 0){
fprint(2, "Must set channels and resolution before speed\n");
return Undef;
}
if (endpt[rec] < 0)
sysfatal("endpt[%s] not set\n", rec?"Record":"Playback");
ep = ad->ep[endpt[rec]];
if (ep->iface == nil)
sysfatal("no interface");
if (curalt[rec] < 0)
sysfatal("curalt[%s] not set\n", rec?"Record":"Playback");
da = ep->iface->dalt[curalt[rec]];
a = da->devspec;
if (a->caps & onefreq){
if (debug & Dbgcontrol)
fprint(2, "setspeed %d: onefreq\n", speed);
speed = a->freqs[0]; /* speed not settable, but packet size must still be set */
}else if (a->caps & has_contfreq){
if (debug & Dbgcontrol)
fprint(2, "setspeed %d: contfreq\n", speed);
if (speed < a->minfreq)
speed = a->minfreq;
else if (speed > a->maxfreq)
speed = a->maxfreq;
if (debug & Dbgcontrol)
fprint(2, "Setting continuously variable %s speed to %d\n",
rec?"record":"playback", speed);
}else if (a->caps & has_discfreq){
if (debug & Dbgcontrol)
fprint(2, "setspeed %d: discfreq\n", speed);
dist = 1000000;
no = -1;
for (i = 0; a->freqs[i] > 0; i++)
if (abs(a->freqs[i] - speed) < dist){
dist = abs(a->freqs[i] - speed);
no = i;
}
if (no == -1){
if (debug & Dbgcontrol)
fprint(2, "no = -1\n");
return Undef;
}
speed = a->freqs[no];
if (debug & Dbgcontrol)
fprint(2, "Setting discreetly variable %s speed to %d\n",
rec?"record":"playback", speed);
}else{
if (debug & Dbgcontrol)
fprint(2, "can't happen\n?");
return Undef;
}
if (a->caps & has_setspeed){
if (debug & Dbgcontrol)
fprint(2, "Setting %s speed to %d Hz;", rec?"record":"playback", speed);
buf[0] = speed;
buf[1] = speed >> 8;
buf[2] = speed >> 16;
if(setupcmd(ad->ep[0], RH2D|Rclass|Rendpt, SET_CUR, sampling_freq_control<<8, endpt[rec], buf, 3) < 0){
fprint(2, "Error in setupcmd\n");
return Undef;
}
if (setupreq(ad->ep[0], RD2H|Rclass|Rendpt, GET_CUR, sampling_freq_control<<8, endpt[rec], 3) < 0){
fprint(2, "Error in setupreq\n");
return Undef;
}
n = setupreply(ad->ep[0], buf, 3);
if (n != 3)
fprint(2, "Error in setupreply: %d\n", n);
else if (buf[2]){
if (debug & Dbgcontrol)
fprint(2, "Speed out of bounds %d (0x%x)\n",
buf[0] | buf[1] << 8 | buf[2] << 16,
buf[0] | buf[1] << 8 | buf[2] << 16);
}else
speed = buf[0] | buf[1] << 8 | buf[2] << 16;
if (debug & Dbgcontrol)
fprint(2, " speed now %d Hz;", speed);
}
ps = ((speed * da->interval + 999) / 1000)
* controls[rec][Channel_control].value[0]
* controls[rec][Resolution_control].value[0]/8;
if(ps > ep->maxpkt){
fprint(2, "packet size %d > maximum packet size %d\n",
ps, ep->maxpkt);
return Undef;
}
if (debug & Dbgcontrol)
fprint(2, "Configuring %s endpoint for %d Hz\n",
rec?"record":"playback", speed);
sprint(cmdbuf, "ep %d %d %c %ld %d", endpt[rec], da->interval, rec?'r':'w',
controls[rec][Channel_control].value[0]*controls[rec][Resolution_control].value[0]/8,
speed);
if (write(ad->ctl, cmdbuf, strlen(cmdbuf)) != strlen(cmdbuf)){
fprint(2, "writing %s to #U/usb/%d/ctl: %r\n", cmdbuf, id);
return Undef;
}
if (debug & Dbgcontrol) fprint(2, "sent `%s' to /dev/usb/%d/ctl\n", cmdbuf, id);
return speed;
}
long
getspeed(int rec, int which)
{
int i, n;
Audioalt *a;
Dalt *da;
Endpt *ep;
uchar buf[3];
if (curalt[rec] < 0){
fprint(2, "Must set channels and resolution before getspeed\n");
return Undef;
}
if (endpt[rec] < 0)
sysfatal("endpt[%s] not set\n", rec?"Record":"Playback");
if(debug & Dbgcontrol)
fprint(2, "getspeed: curalt[%d] == %d\n", rec, endpt[rec]);
ep = ad->ep[endpt[rec]];
if (ep->iface == nil)
sysfatal("no interface");
if (curalt[rec] < 0)
sysfatal("curalt[%s] not set\n", rec?"Record":"Playback");
da = ep->iface->dalt[curalt[rec]];
a = da->devspec;
if (a->caps & onefreq){
if(debug & Dbgcontrol)
fprint(2, "getspeed: onefreq\n");
if (which == GET_RES)
return Undef;
return a->freqs[0]; /* speed not settable */
}
if (a->caps & has_setspeed){
if(debug & Dbgcontrol)
fprint(2, "getspeed: has_setspeed, ask\n");
if (setupreq(ad->ep[0], RD2H|Rclass|Rendpt, which, sampling_freq_control<<8, endpt[rec], 3) < 0)
return Undef;
n = setupreply(ad->ep[0], buf, 3);
if(n == 3){
if(buf[2]){
if (debug & Dbgcontrol)
fprint(2, "Speed out of bounds\n");
if ((a->caps & has_discfreq) && (buf[0] | buf[1] << 8) < 8)
return a->freqs[buf[0] | buf[1] << 8];
}
return buf[0] | buf[1] << 8 | buf[2] << 16;
}
if(debug & Dbgcontrol)
fprint(2, "getspeed: n = %d\n", n);
}
if (a->caps & has_contfreq){
if(debug & Dbgcontrol)
fprint(2, "getspeed: has_contfreq\n");
if (which == GET_CUR)
return controls[rec][Speed_control].value[0];
if (which == GET_MIN)
return a->minfreq;
if (which == GET_MAX)
return a->maxfreq;
if (which == GET_RES)
return 1;
}
if (a->caps & has_discfreq){
if(debug & Dbgcontrol)
fprint(2, "getspeed: has_discfreq\n");
if (which == GET_CUR)
return controls[rec][Speed_control].value[0];
if (which == GET_MIN)
return a->freqs[0];
for (i = 0; i < 8 && a->freqs[i] > 0; i++)
;
if (which == GET_MAX)
return a->freqs[i-1];
if (which == GET_RES)
return Undef;
}
if (debug & Dbgcontrol)
fprint(2, "can't happen\n?");
return Undef;
}
int
setcontrol(int rec, char *name, long *value)
{
int i, ctl, m;
byte buf[3];
int type, req, control, index, count;
Audiocontrol *c;
c = nil;
for (ctl = 0; ctl < Ncontrol; ctl++){
c = &controls[rec][ctl];
if (strcmp(name, c->name) == 0)
break;
}
if (ctl == Ncontrol){
if (debug & Dbgcontrol) fprint(2, "setcontrol: control not found\n");
return -1;
}
if (c->settable == 0) {
if (debug & Dbgcontrol) fprint(2, "setcontrol: control %d.%d not settable\n", rec, ctl);
if (c->chans){
for (i = 0; i < 8; i++)
if ((c->chans & 1 << i) && c->value[i] != value[i])
return -1;
return 0;
}
if (c->value[0] != value[0])
return -1;
return 0;
}
if (c->chans){
value[0] = 0; // set to average
m = 0;
for (i = 1; i < 8; i++)
if (c->chans & 1 << i){
if (c->min != Undef && value[i] < c->min)
value[i] = c->min;
if (c->max != Undef && value[i] > c->max)
value[i] = c->max;
value[0] += value[i];
m++;
} else
value[i] = Undef;
if (m) value[0] /= m;
}else{
if (c->min != Undef && value[0] < c->min)
value[0] = c->min;
if (c->max != Undef && value[0] > c->max)
value[0] = c->max;
}
req = SET_CUR;
count = 1;
switch(ctl){
default:
if (debug & Dbgcontrol) fprint(2, "setcontrol: can't happen\n");
return -1;
case Speed_control:
if ((value[0] = setspeed(rec, value[0])) < 0)
return -1;
c->value[0] = value[0];
return 0;
case Equalizer_control:
/* not implemented */
return -1;
case Resolution_control:
control = findalt(rec, controls[rec][Channel_control].value[0], value[0], defaultspeed[rec]);
if(control < 0 || setaudioalt(rec, c, control) < 0){
if (debug & Dbgcontrol) fprint(2, "setcontrol: can't find setting for %s\n",
c->name);
return -1;
}
c->value[0] = value[0];
controls[rec][Speed_control].value[0] = defaultspeed[rec];
return 0;
case Volume_control:
case Delay_control:
count = 2;
/* fall through */
case Mute_control:
case Bass_control:
case Mid_control:
case Treble_control:
case Agc_control:
case Bassboost_control:
case Loudness_control:
type = RH2D|Rclass|Rinterface;
control = ctl<<8;
index = featureid[rec]<<8;
break;
case Selector_control:
type = RH2D|Rclass|Rinterface;
control = ctl<<8;
index = selectorid[rec];
break;
case Channel_control:
control = findalt(rec, value[0], controls[rec][Resolution_control].value[0], defaultspeed[rec]);
if(control < 0 || setaudioalt(rec, c, control) < 0){
if (debug & Dbgcontrol) fprint(2, "setcontrol: can't find setting for %s\n",
c->name);
return -1;
}
c->value[0] = value[0];
controls[rec][Speed_control].value[0] = defaultspeed[rec];
return 0;
}
if(c->chans){
for (i = 1; i < 8; i++)
if (c->chans & 1 << i){
switch(count){
case 2:
buf[1] = value[i] >> 8;
case 1:
buf[0] = value[i];
}
if (setupcmd(ad->ep[0], type, req, control | i, index, buf, count) < 0){
if (debug & Dbgcontrol) fprint(2, "setcontrol: setupcmd %s failed\n",
controls[rec][ctl].name);
return -1;
}
c->value[i] = value[i];
}
}else{
switch(count){
case 2:
buf[1] = value[0] >> 8;
case 1:
buf[0] = value[0];
}
if (setupcmd(ad->ep[0], type, req, control, index, buf, count) < 0){
if (debug & Dbgcontrol) fprint(2, "setcontrol: setupcmd %s failed\n",
c->name);
return -1;
}
}
c->value[0] = value[0];
return 0;
}
int
getspecialcontrol(int rec, int ctl, int req, long *value)
{
byte buf[3];
int m, n, i;
int type, control, index, count;
short svalue;
count = 1;
switch(ctl){
default:
return Undef;
case Speed_control:
value[0] = getspeed(rec, req);
return 0;
case Channel_control:
case Resolution_control:
if (req == GET_MIN)
value[0] = controls[rec][ctl].min;
if (req == GET_MAX)
value[0] = controls[rec][ctl].max;
if (req == GET_RES)
value[0] = controls[rec][ctl].step;
if (req == GET_CUR)
value[0] = controls[rec][ctl].value[0];
return 0;
case Volume_control:
case Delay_control:
count = 2;
/* fall through */
case Mute_control:
case Bass_control:
case Mid_control:
case Treble_control:
case Equalizer_control:
case Agc_control:
case Bassboost_control:
case Loudness_control:
type = RD2H|Rclass|Rinterface;
control = ctl<<8;
index = featureid[rec]<<8;
break;
case Selector_control:
type = RD2H|Rclass|Rinterface;
control = ctl<<8;
index = selectorid[rec];
break;
}
if (controls[rec][ctl].chans){
m = 0;
value[0] = 0; // set to average
for (i = 1; i < 8; i++){
value[i] = Undef;
if (controls[rec][ctl].chans & 1 << i){
if (setupreq(ad->ep[0], type, req, control | i, index, count) < 0)
return Undef;
n = setupreply(ad->ep[0], buf, count);
if (n != count)
return -1;
switch (count) {
case 2:
svalue = buf[1] << 8 | buf[0];
if (req == GET_CUR){
value[i] = svalue;
value[0] += svalue;
m++;
}else
value[0] = svalue;
break;
case 1:
if (req == GET_CUR){
value[i] = buf[0];
value[0] += buf[0];
m++;
}else
value[0] = buf[0];
}
}
}
if (m) value[0] /= m;
return 0;
}
value[0] = Undef;
if (setupreq(ad->ep[0], type, req, control, index, count) < 0)
return -1;
n = setupreply(ad->ep[0], buf, count);
if (n != count)
return -1;
switch (count) {
case 2:
svalue = buf[1] << 8 | buf[0];
value[0] = svalue;
break;
case 1:
value[0] = buf[0];
}
return 0;
}
int
getcontrol(int rec, char *name, long *value)
{
int i;
for (i = 0; i < Ncontrol; i++){
if (strcmp(name, controls[rec][i].name) == 0)
break;
}
if (i == Ncontrol)
return -1;
if (controls[rec][i].readable == 0)
return -1;
if(getspecialcontrol(rec, i, GET_CUR, value) < 0)
return -1;
memmove(controls[rec][i].value, value, sizeof controls[rec][i].value);
return 0;
}
void
getcontrols(void)
{
int rec, ctl, i;
Audiocontrol *c;
long v[8];
for (rec = 0; rec < 2; rec++)
for (ctl = 0; ctl < Ncontrol; ctl++){
c = &controls[rec][ctl];
if (c->readable){
if (verbose)
fprint(2, "%s %s control",
rec?"Record":"Playback", controls[rec][ctl].name);
c->min = (getspecialcontrol(rec, ctl, GET_MIN, v) < 0) ? Undef : v[0];
if (verbose && c->min != Undef)
fprint(2, ", min %ld", c->min);
c->max = (getspecialcontrol(rec, ctl, GET_MAX, v) < 0) ? Undef : v[0];
if (verbose && c->max != Undef)
fprint(2, ", max %ld", c->max);
c->step = (getspecialcontrol(rec, ctl, GET_RES, v) < 0) ? Undef : v[0];
if (verbose && c->step != Undef)
fprint(2, ", step %ld", c->step);
if (getspecialcontrol(rec, ctl, GET_CUR, c->value) == 0){
if (verbose) {
if (c->chans){
fprint(2, ", values");
for (i = 1; i < 8; i++)
if (c->chans & 1 << i)
fprint(2, "[%d] %ld ", i, c->value[i]);
}else
fprint(2, ", value %ld", c->value[0]);
}
}
if (verbose)
fprint(2, "\n");
} else {
c->min = Undef;
c->max = Undef;
c->step = Undef;
c->value[0] = Undef;
if (debug & Dbgcontrol)
fprint(2, "%s %s control not settable\n",
rec?"Playback":"Record", controls[rec][ctl].name);
}
}
}
int
ctlparse(char *s, Audiocontrol *c, long *v)
{
int i, j, nf, m;
char *vals[9];
char *p;
long val;
nf = tokenize(s, vals, nelem(vals));
if (nf <= 0)
return -1;
if (c->chans){
j = 0;
m = 0;
SET(val);
v[0] = 0; // will compute average of v[i]
for (i = 1; i < 8; i++)
if (c->chans & 1 << i) {
if (j < nf){
val = strtol(vals[j], &p, 0);
if (val == 0 && *p != '\0' && *p != '%')
return -1;
if (*p == '%' && c->min != Undef)
val = (val*c->max + (100-val)*c->min)/100;
j++;
}
v[i] = val;
v[0] += val;
m++;
} else
v[i] = Undef;
if (m) v[0] /= m;
} else {
val = strtol(vals[0], &p, 0);
if (*p == '%' && c->min != Undef)
val = (val*c->max + (100-val)*c->min)/100;
v[0] = val;
}
return 0;
}
int
Aconv(Fmt *fp)
{
char str[256];
Audiocontrol *c;
int fst, i;
char *p;
c = va_arg(fp->args, Audiocontrol*);
p = str;
if (c->chans) {
fst = 1;
for (i = 1; i < 8; i++)
if (c->chans & 1 << i){
p = seprint(p, str+sizeof str, "%s%ld", fst?"'":" ", c->value[i]);
fst = 0;
}
seprint(p, str+sizeof str, "'");
} else
seprint(p, str+sizeof str, "%ld", c->value[0]);
return fmtstrcpy(fp, str);
}
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