merge sd changes from 9atom

1 files changed, 62 insertions, 0 deletions

diff --git a/sys/src/9/port/led.c b/sys/src/9/port/led.c
new file mode 100644
index 000000000..8456d32cc
--- /dev/null
+++ b/sys/src/9/port/led.c
@@ -0,0 +1,62 @@
+#include "u.h"
+#include "../port/lib.h"
+#include "mem.h"
+#include "dat.h"
+#include "../port/error.h"
+#include "fns.h"
+#include "led.h"
+
+static char *ibpinames[Ibpilast] = {
+[Ibpinone]	"none",
+[Ibpinormal]	"normal",
+[Ibpilocate]	"locate",
+[Ibpifail]		"fail",
+[Ibpirebuild]	"rebuild",
+[Ibpipfa]		"pfa",
+[Ibpispare]	"spare",
+[Ibpicritarray]	"critarray",
+[Ibpifailarray]	"failarray",
+};
+
+char*
+ledname(int c)
+{
+	if(c >= 0 && c < Ibpilast)
+		return ibpinames[c];
+	return "bad index";
+}
+
+ int
+name2led(char *s)
+{
+	int i;
+
+	for(i = 0; i < nelem(ibpinames); i++)
+		if(strcmp(ibpinames[i], s) == 0)
+			return i;
+	return -1;
+}
+
+long
+ledr(Ledport *p, Chan*, void *a, long n, vlong off)
+{
+	char buf[64];
+
+	snprint(buf, sizeof buf, "%s\n", ledname(p->led));
+	return readstr(off, a, n, buf);
+}
+
+long
+ledw(Ledport *p, Chan*, void *a, long n, vlong)
+{
+	int i;
+	Cmdbuf *cb;
+
+	cb = parsecmd(a, n);
+	i = name2led(cb->f[0]);
+	free(cb);
+	if(i == -1)
+		error(Ebadarg);
+	p->led = i;
+	return n;
+}