xref: /illumos-gate/usr/src/lib/libipmi/common/ipmi_sensor.c (revision 03100a6332bd4edc7a53091fcf7c9a7131bcdaa7)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #pragma ident	"%Z%%M%	%I%	%E% SMI"
27 
28 #include <libipmi.h>
29 #include <string.h>
30 
31 #include "ipmi_impl.h"
32 
33 ipmi_sensor_reading_t *
34 ipmi_get_sensor_reading(ipmi_handle_t *ihp, uint8_t id)
35 {
36 	ipmi_cmd_t cmd, *resp;
37 	ipmi_sensor_reading_t *srp;
38 
39 	cmd.ic_netfn = IPMI_NETFN_SE;
40 	cmd.ic_cmd = IPMI_CMD_GET_SENSOR_READING;
41 	cmd.ic_lun = 0;
42 	cmd.ic_data = &id;
43 	cmd.ic_dlen = sizeof (id);
44 
45 	if ((resp = ipmi_send(ihp, &cmd)) == NULL)
46 		return (NULL);
47 
48 	/*
49 	 * The upper half of the state field is optional, so if it's not
50 	 * present, then set it to zero.  We also need to convert to the
51 	 * native endianness.
52 	 */
53 	if (resp->ic_dlen < sizeof (ipmi_sensor_reading_t) - sizeof (uint8_t)) {
54 		(void) ipmi_set_error(ihp, EIPMI_BAD_RESPONSE_LENGTH, NULL);
55 		return (NULL);
56 	}
57 	srp = resp->ic_data;
58 
59 	if (resp->ic_dlen < sizeof (ipmi_sensor_reading_t))
60 		(void) memset((char *)srp + resp->ic_dlen, '\0',
61 		    sizeof (ipmi_sensor_reading_t) - resp->ic_dlen);
62 
63 	srp->isr_state = LE_16(srp->isr_state);
64 	return (srp);
65 }
66 
67 int
68 ipmi_set_sensor_reading(ipmi_handle_t *ihp, ipmi_set_sensor_reading_t *req)
69 {
70 	ipmi_set_sensor_reading_t realreq;
71 	ipmi_cmd_t cmd, *resp;
72 
73 	/*
74 	 * Convert states to little endian.
75 	 */
76 	(void) memcpy(&realreq, req, sizeof (realreq));
77 
78 	realreq.iss_assert_state = LE_16(realreq.iss_assert_state);
79 	realreq.iss_deassert_state = LE_16(realreq.iss_deassert_state);
80 
81 	cmd.ic_netfn = IPMI_NETFN_SE;
82 	cmd.ic_cmd = IPMI_CMD_SET_SENSOR_READING;
83 	cmd.ic_lun = 0;
84 	cmd.ic_data = &realreq;
85 	cmd.ic_dlen = sizeof (realreq);
86 
87 	if ((resp = ipmi_send(ihp, &cmd)) == NULL)
88 		return (-1);
89 
90 	if (resp->ic_dlen != 0)
91 		return (ipmi_set_error(ihp, EIPMI_BAD_RESPONSE_LENGTH, NULL));
92 
93 	return (0);
94 }
95