[src/trunk]: src/sys/arch/sparc/sparc Add enable/disable and power management...

[jdc <jdc%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/aa5ec7c8a842
branches:  trunk
changeset: 483638:aa5ec7c8a842
user:      jdc <jdc%NetBSD.org@localhost>
date:      Tue Mar 14 21:18:27 2000 +0000

description:
Add enable/disable and power management hooks for serial ports.
Port states : always on / on when open (default) / always off

diffstat:

 sys/arch/sparc/sparc/auxiotwo.c |  92 ++++++++++++++++++++++++++++++++++------
 sys/arch/sparc/sparc/auxiotwo.h |  16 +++++-
 2 files changed, 91 insertions(+), 17 deletions(-)

diffs (158 lines):

diff -r 2660f74a4569 -r aa5ec7c8a842 sys/arch/sparc/sparc/auxiotwo.c
--- a/sys/arch/sparc/sparc/auxiotwo.c   Tue Mar 14 20:17:46 2000 +0000
+++ b/sys/arch/sparc/sparc/auxiotwo.c   Tue Mar 14 21:18:27 2000 +0000
@@ -1,7 +1,7 @@
-/*     $NetBSD: auxiotwo.c,v 1.1 2000/02/25 18:17:24 jdc Exp $ */
+/*     $NetBSD: auxiotwo.c,v 1.2 2000/03/14 21:18:27 jdc Exp $ */
 
 /*
- * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * Copyright (c) 2000 The NetBSD Foundation, Inc.
  * All rights reserved.
  *
  * This code is derived from software contributed to The NetBSD Foundation
@@ -48,8 +48,12 @@
 
 #include <machine/autoconf.h>
 
+#include <sparc/include/tctrl.h>
+#include <sparc/sparc/auxiotwo.h>
 #include <sparc/sparc/vaddrs.h>
-#include <sparc/sparc/auxiotwo.h>
+
+static int serial_refcount;
+static int serial_power;
 
 static int auxiotwomatch __P((struct device *, struct cfdata *, void *));
 
@@ -97,18 +101,9 @@
 
        auxiotwo_reg = (volatile u_char *)bh;
        auxiotwo_regval = *auxiotwo_reg;
+       serial_refcount = 0;
+       serial_power = PORT_PWR_STANDBY;
        printf("\n");
-
-       /*
-        * This powers on the serial ports
-        * XXX: this should probably be in the serial attach code.
-        */
-       auxiotwobisc(AUXIOTWO_SON, 0);
-
-       /*
-        * This powers them off :
-        * auxiotwobisc(AUXIOTWO_SOF, 1);
-        */
 }
 
 unsigned int
@@ -130,3 +125,72 @@
        splx(s);
        return (auxiotwo_regval);
 }
+
+/*
+ * Serial port state - called from zs_enable()/zs_disable()
+ */
+void
+auxiotwoserialendis (state)
+       int state;
+{
+       switch (state) {
+
+       case ZS_ENABLE:
+               /* Power on the serial ports? */
+               serial_refcount++;
+               if (serial_refcount == 1 && serial_power == PORT_PWR_STANDBY)
+                       auxiotwobisc(AUXIOTWO_SON, 0);
+               break;
+       case ZS_DISABLE:
+               /* Power off the serial ports? */
+               serial_refcount--;
+               if (!serial_refcount && serial_power == PORT_PWR_STANDBY)
+                       auxiotwobisc(AUXIOTWO_SOF, 1);
+               break;
+       }
+}
+
+/*
+ * Set power management - called by tctrl
+ */
+void
+auxiotwoserialsetapm (state)
+       int state;
+{
+       switch (state) {
+
+       case PORT_PWR_ON:
+               /* Change to: power always on */
+               if (serial_power == PORT_PWR_OFF ||
+                   (serial_power == PORT_PWR_STANDBY && !serial_refcount))
+                       auxiotwobisc(AUXIOTWO_SON, 0);
+               serial_power = PORT_PWR_ON;
+               break;
+
+       case PORT_PWR_STANDBY:
+               /* Change to: power on if open */
+               if (serial_power == PORT_PWR_ON && !serial_refcount)
+                       auxiotwobisc(AUXIOTWO_SOF, 1);
+               if (serial_power == PORT_PWR_OFF && serial_refcount)
+                       auxiotwobisc(AUXIOTWO_SON, 0);
+               serial_power = PORT_PWR_STANDBY;
+               break;
+
+       case PORT_PWR_OFF:
+               /* Change to: power always off */
+               if (serial_power == PORT_PWR_ON ||
+                   (serial_power == PORT_PWR_STANDBY && serial_refcount))
+                       auxiotwobisc(AUXIOTWO_SOF, 1);
+               serial_power = PORT_PWR_OFF;
+               break;
+       }
+}
+
+/*
+ * Get power management - called by tctrl
+ */
+int
+auxiotwoserialgetapm ()
+{
+       return (serial_power);
+}
diff -r 2660f74a4569 -r aa5ec7c8a842 sys/arch/sparc/sparc/auxiotwo.h
--- a/sys/arch/sparc/sparc/auxiotwo.h   Tue Mar 14 20:17:46 2000 +0000
+++ b/sys/arch/sparc/sparc/auxiotwo.h   Tue Mar 14 21:18:27 2000 +0000
@@ -1,11 +1,11 @@
-/*     $NetBSD: auxiotwo.h,v 1.1 2000/02/25 18:17:24 jdc Exp $ */
+/*     $NetBSD: auxiotwo.h,v 1.2 2000/03/14 21:18:27 jdc Exp $ */
 
 /*
- * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * Copyright (c) 2000 The NetBSD Foundation, Inc.
  * All rights reserved.
  *
  * This code is derived from software contributed to The NetBSD Foundation
- * by Julian Coleman, Waldi Ravens and Leo Weppelman.
+ * by Julian Coleman.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -54,8 +54,18 @@
 #define        AUXIOTWO_CPF    0x02            /* Clear Power Fail Detect */
 #define        AUXIOTWO_SON    0x01            /* Serial ports on (when cleared) */
 
+/*
+ * Serial port open/close
+ */
+
+#define ZS_ENABLE      0
+#define ZS_DISABLE     1
+
 #ifndef _LOCORE
 volatile u_char *auxiotwo_reg;
 u_char auxiotwo_regval;
 unsigned int auxiotwobisc __P((int, int));
+void auxiotwoserialendis __P((int));
+void auxiotwoserialsetapm __P((int));
+int auxiotwoserialgetapm __P((void));
 #endif