ref: cc861074b49c3c5410f335c7e3668c542c2c46fb
parent: 6ee1e4bd7898b96abb5c655bc9335df96fafa19f
author: Sigrid Solveig Haflínudóttir <sigrid@ftrv.se>
date: Wed Aug 24 09:45:51 EDT 2022
reform: add reform/shortcuts
--- a/sys/man/1/reform
+++ b/sys/man/1/reform
@@ -1,7 +1,8 @@
.TH REFORM 1
.SH NAME
audio,
-pm
+pm,
+shortcuts
- MNT Reform 2 support utilities
.SH SYNOPSIS
.B reform/audio
@@ -32,9 +33,20 @@
.B -s
.I service
]
+.PP
+.B reform/shortcuts
+[
+.B -l
+.I light_step
+]
+[
+.B -v
+.I vol_step
+]
.SH DESCRIPTION
These programs provide support for certain functions of MNT Reform 2
-computing device and make controlling file systems available under
+computing device. Some of them also make controlling file systems
+available under
.BR /dev .
.PP
.SS Audio
@@ -103,6 +115,27 @@
.TP
.B cputemp
Exposes the current temperature reading of the CPU.
+.SS Shortcuts
+.I shortcuts
+enables LCD brightness and audio volume adjustment via keyboard shortcuts.
+.PP
+The program uses Rio's
+.I kbdtap
+to function:
+.IP
+.EX
+reform/shortcuts </dev/kbdtap >/dev/kbdtap
+.EE
+.PP
+.I Super+F1/F2
+decreases/increases LCD brightness,
+.I Super+F3/F4
+decreases/increases "master" volume.
+Optionally, a single step amount can be set with
+.I -l
+for LCD light level (default is 5) and
+.I -v
+for volume (default is 3).
.SH SOURCE
.B /sys/src/cmd/reform
.SH SEE ALSO
--- a/sys/src/cmd/reform/mkfile
+++ b/sys/src/cmd/reform/mkfile
@@ -4,6 +4,7 @@
TARG=\
audio\
pm\
+ shortcuts\
</sys/src/cmd/mkmany
--- /dev/null
+++ b/sys/src/cmd/reform/shortcuts.c
@@ -1,0 +1,105 @@
+#include <u.h>
+#include <libc.h>
+#include <keyboard.h>
+
+static int lightstep = 5, volstep = 3;
+static int light, vol, mod;
+
+static void
+process(char *s)
+{+ char b[128], *p;
+ int n, o;
+ Rune r;
+
+ if(*s == 'K' && s[1] == 0)
+ mod = 0;
+
+ o = 0;
+ b[o++] = *s;
+ for(p = s+1; *p != 0; p += n){+ if((n = chartorune(&r, p)) == 1 && r == Runeerror){+ /* bail out */
+ n = strlen(p);
+ memmove(b+o, p, n);
+ o += n;
+ p += n;
+ break;
+ }
+
+ if(*s == 'k' && r == Kmod4){+ mod = 1;
+ }else if(*s == 'K'){+ if(mod && r >= (KF|1) && r <= (KF|4))
+ continue;
+ if(r == Kmod4)
+ mod = 0;
+ }else if(mod && r >= (KF|1) && r <= (KF|4)){+ if(*s == 'c'){+ if(r == (KF|1))
+ fprint(light, "lcd -%d", lightstep);
+ else if(r == (KF|2))
+ fprint(light, "lcd +%d", lightstep);
+ else if(r == (KF|3))
+ fprint(vol, "master -%d", volstep);
+ else if(r == (KF|4))
+ fprint(vol, "master +%d", volstep);
+ }
+ continue;
+ }
+
+ memmove(b+o, p, n);
+ o += n;
+ }
+
+ /* all runes filtered out - ignore completely */
+ if(o == 1 && p-s > 1)
+ return;
+
+ b[o++] = 0;
+ if(write(1, b, o) != o)
+ exits(nil);
+}
+
+static void
+usage(void)
+{+ fprint(2, "usage: [-l light_step] [-v vol_step] %s\n", argv0);
+ exits("usage");+}
+
+void
+main(int argc, char **argv)
+{+ char b[128];
+ int i, j, n;
+
+ ARGBEGIN{+ case 'l':
+ lightstep = atoi(EARGF(usage()));
+ break;
+ case 'v':
+ volstep = atoi(EARGF(usage()));
+ break;
+ default:
+ usage();
+ }ARGEND
+
+ light = open("/dev/light", OWRITE);+ vol = open("/dev/volume", OWRITE);+ for(i = 0;;){+ if((n = read(0, b+i, sizeof(b)-i)) <= 0)
+ break;
+ n += i;
+ for(j = 0; j < n; j++){+ if(b[j] == 0){+ process(b+i);
+ i = j+1;
+ }
+ }
+ memmove(b, b+i, j-i);
+ i -= j;
+ }
+
+ exits(nil);
+}