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Implement a new command: "checkpower". Returns the current power management

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mode of an ATA device.
This commit is contained in:
kenh 1998-11-23 23:02:58 +00:00
parent 1f676cda09
commit 2e09168cb1
2 changed files with 54 additions and 2 deletions
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7
sbin/atactl/atactl.8
View File

@ -1,4 +1,4 @@
.\" $NetBSD: atactl.8,v 1.1 1998/11/19 23:55:00 kenh Exp $
.\" $NetBSD: atactl.8,v 1.2 1998/11/23 23:02:58 kenh Exp $
.\"
.\" Copyright (c) 1998 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -98,6 +98,11 @@ Places the specified device into Standby mode, and sets the Standby timer
to
.Ar standby-timer
seconds. A value of 0 will disable the Standby timer.
.Pp
.Nm checkpower
.Pp
Will print out if the device is in Active, Idle, or Standby power
management mode.
.Sh BUGS
The output from the
.Nm identify

49
sbin/atactl/atactl.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: atactl.c,v 1.2 1998/11/20 18:27:40 kenh Exp $ */
/* $NetBSD: atactl.c,v 1.3 1998/11/23 23:02:58 kenh Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -80,6 +80,7 @@ extern const char *__progname; /* from crt0.o */
void device_identify __P((int, char *[]));
void device_setidle __P((int, char *[]));
void device_idle __P((int, char *[]));
void device_checkpower __P((int, char *[]));
struct command commands[] = {
{ "identify", device_identify },
@ -88,6 +89,7 @@ struct command commands[] = {
{ "idle", device_idle },
{ "standby", device_idle },
{ "sleep", device_idle },
{ "checkpower", device_checkpower },
{ NULL, NULL },
};
@ -490,3 +492,48 @@ usage:
cmdname);
exit(1);
}
/*
* Query the device for the current power mode
*/
void
device_checkpower(argc, argv)
int argc;
char *argv[];
{
struct atareq req;
/* No arguments. */
if (argc != 0)
goto usage;
memset(&req, 0, sizeof(req));
req.command = WDCC_CHECK_PWR;
req.timeout = 1000;
req.flags = ATACMD_READREG;
ata_command(&req);
printf("Current power status: ");
switch (req.sec_count) {
case 0x00:
printf("Standby mode\n");
break;
case 0x80:
printf("Idle mode\n");
break;
case 0xff:
printf("Active mode\n");
break;
default:
printf("Unknown power code (%02x)\n", req.sec_count);
}
return;
usage:
fprintf(stderr, "usage: %s device %s\n", __progname, cmdname);
exit(1);
}