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Diffstat (limited to 'src/lpt.c')
-rw-r--r--src/lpt.c107
1 files changed, 60 insertions, 47 deletions
diff --git a/src/lpt.c b/src/lpt.c
index 270aead..26f4468 100644
--- a/src/lpt.c
+++ b/src/lpt.c
@@ -1,4 +1,4 @@
-/*
+/*
* lpt: read/write the parallel port
*
* (c) 1999-2011 IOhannes m zmölnig, forum::für::umläute, institute of electronic music and acoustics (iem)
@@ -7,18 +7,18 @@
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
+ *
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-/*
+/*
(c) 2000:forum::für::umläute:2005
write to the parallel port
@@ -68,7 +68,9 @@ extern int open_port(int port);
static int ioperm(int port, int a, int b)
{
- if(open_port(port) == -1)return(1);
+ if(open_port(port) == -1) {
+ return(1);
+ }
return(0);
}
@@ -104,8 +106,7 @@ static int sys_inb(int port)
static int count_iopl = 0;
static t_class *lpt_class;
-typedef struct _lpt
-{
+typedef struct _lpt {
t_object x_obj;
unsigned long port;
@@ -119,13 +120,13 @@ static void lpt_float(t_lpt *x, t_floatarg f)
#ifdef Z_WANT_LPT
unsigned char b = f;
# ifdef HAVE_LINUX_PPDEV_H
- if (x->device>0){
+ if (x->device>0) {
ioctl (x->device, PPWDATA, &b);
} else
# endif
- if (x->port) {
- sys_outb(b, x->port+0);
- }
+ if (x->port) {
+ sys_outb(b, x->port+0);
+ }
#endif /* Z_WANT_LPT */
}
@@ -134,13 +135,13 @@ static void lpt_control(t_lpt *x, t_floatarg f)
#ifdef Z_WANT_LPT
unsigned char b = f;
# ifdef HAVE_LINUX_PPDEV_H
- if (x->device>0){
+ if (x->device>0) {
ioctl (x->device, PPWCONTROL, &b);
} else
# endif
- if (x->port) {
- sys_outb(b, x->port+2);
- }
+ if (x->port) {
+ sys_outb(b, x->port+2);
+ }
#endif /* Z_WANT_LPT */
}
@@ -148,15 +149,15 @@ static void lpt_bang(t_lpt *x)
{
#ifdef Z_WANT_LPT
# ifdef HAVE_LINUX_PPDEV_H
- if (x->device>0){
+ if (x->device>0) {
unsigned char b=0;
ioctl (x->device, PPRCONTROL, &b);
- outlet_float(x->x_obj.ob_outlet, (t_float)b);
+ outlet_float(x->x_obj.ob_outlet, (t_float)b);
} else
# endif
- if (x->port) {
- outlet_float(x->x_obj.ob_outlet, (t_float)sys_inb(x->port+1));
- }
+ if (x->port) {
+ outlet_float(x->x_obj.ob_outlet, (t_float)sys_inb(x->port+1));
+ }
#endif /* Z_WANT_LPT */
}
@@ -165,8 +166,9 @@ static void *lpt_new(t_symbol *s, int argc, t_atom *argv)
{
t_lpt *x = (t_lpt *)pd_new(lpt_class);
char*devname=atom_getsymbol(argv)->s_name;
- if(s==gensym("lp"))
+ if(s==gensym("lp")) {
error("lpt: the use of 'lp' has been deprecated; use 'lpt' instead");
+ }
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("control"));
@@ -184,7 +186,7 @@ static void *lpt_new(t_symbol *s, int argc, t_atom *argv)
break;
case 1:
x->port = BASE1;
- break;
+ break;
case 2:
x->port = BASE2;
break;
@@ -193,17 +195,17 @@ static void *lpt_new(t_symbol *s, int argc, t_atom *argv)
x->port = 0;
return (x);
}
- } else {
+ } else {
/* SYMBOL might be a file or a hex port-number;
we ignore the file (device) case by now;
LATER think about this
*/
x->device=-1;
x->port=strtol(devname, 0, 16);
- if(0==x->port){
+ if(0==x->port) {
#ifdef HAVE_LINUX_PPDEV_H
x->device = open(devname, O_RDWR);
- if(x->device<=0){
+ if(x->device<=0) {
error("lpt: bad device %s", devname);
return(x);
} else {
@@ -217,12 +219,12 @@ static void *lpt_new(t_symbol *s, int argc, t_atom *argv)
}
}
- if ((x->device<0) && (!x->port || x->port>65535)){
+ if ((x->device<0) && (!x->port || x->port>65535)) {
error("lpt : bad port %x", x->port);
x->port = 0;
return (x);
}
- if (x->device<0){
+ if (x->device<0) {
/* this is ugly: when using a named device,
* we are currently assuming that we have read/write-access
* of course, this is not necessary true
@@ -231,29 +233,37 @@ static void *lpt_new(t_symbol *s, int argc, t_atom *argv)
* withOUT write permissions
* (just reading the parport)
*/
- if (x->port && x->port < 0x400){
+ if (x->port && x->port < 0x400) {
if (ioperm(x->port, 8, 1)) {
x->mode=MODE_NONE;
- } else x->mode = MODE_IOPERM;
+ } else {
+ x->mode = MODE_IOPERM;
+ }
}
- if(x->mode==MODE_NONE){
- if (iopl(3)){
+ if(x->mode==MODE_NONE) {
+ if (iopl(3)) {
x->mode=MODE_NONE;
- } else x->mode=MODE_IOPL;
+ } else {
+ x->mode=MODE_IOPL;
+ }
count_iopl++;
}
-
- if(x->mode==MODE_NONE){
+
+ if(x->mode==MODE_NONE) {
error("lpt : couldn't get write permissions");
x->port = 0;
return (x);
}
}
- if(x->device>0)
+ if(x->device>0) {
post("lpt: connected to device %s", devname);
- else
- post("lpt: connected to port %x in mode '%s'", x->port, (x->mode==MODE_IOPL)?"iopl":"ioperm");
- if (x->mode==MODE_IOPL)post("lpt-warning: this might seriously damage your pc...");
+ } else {
+ post("lpt: connected to port %x in mode '%s'", x->port,
+ (x->mode==MODE_IOPL)?"iopl":"ioperm");
+ }
+ if (x->mode==MODE_IOPL) {
+ post("lpt-warning: this might seriously damage your pc...");
+ }
#else
error("zexy has been compiled without [lpt]!");
count_iopl=0;
@@ -268,17 +278,19 @@ static void lpt_free(t_lpt *x)
{
#ifdef Z_WANT_LPT
# ifdef HAVE_LINUX_PPDEV_H
- if (x->device>0){
+ if (x->device>0) {
ioctl (x->device, PPRELEASE);
close(x->device);
x->device=0;
} else
# endif
- if (x->port) {
- if (x->mode==MODE_IOPERM && ioperm(x->port, 8, 0)) error("lpt: couldn't clean up device");
- else if (x->mode==MODE_IOPL && (!--count_iopl) && iopl(0))
- error("lpt: couldn't clean up device");
- }
+ if (x->port) {
+ if (x->mode==MODE_IOPERM && ioperm(x->port, 8, 0)) {
+ error("lpt: couldn't clean up device");
+ } else if (x->mode==MODE_IOPL && (!--count_iopl) && iopl(0)) {
+ error("lpt: couldn't clean up device");
+ }
+ }
#endif /* Z_WANT_LPT */
}
@@ -294,12 +306,13 @@ static void lpt_helper(t_lpt*UNUSED(x))
void lpt_setup(void)
{
lpt_class = class_new(gensym("lpt"),
- (t_newmethod)lpt_new, (t_method)lpt_free,
- sizeof(t_lpt), 0, A_GIMME, 0);
+ (t_newmethod)lpt_new, (t_method)lpt_free,
+ sizeof(t_lpt), 0, A_GIMME, 0);
class_addcreator((t_newmethod)lpt_new, gensym("lp"), A_GIMME, 0);
class_addfloat(lpt_class, (t_method)lpt_float);
- class_addmethod(lpt_class, (t_method)lpt_control, gensym("control"), A_FLOAT, 0);
+ class_addmethod(lpt_class, (t_method)lpt_control, gensym("control"),
+ A_FLOAT, 0);
class_addbang(lpt_class, (t_method)lpt_bang);
class_addmethod(lpt_class, (t_method)lpt_helper, gensym("help"), 0);
generated by cgit v1.2.1 (git 2.18.0) at 2024-05-05 12:29:59 +0000