acpippm.c (19397407) acpippm.c (db2bae30)
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

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19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
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

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19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27
28#include <sys/types.h>
29#include <sys/conf.h>
30#include <sys/open.h>
31#include <sys/modctl.h>
32#include <sys/promif.h>
33#include <sys/stat.h>
34#include <sys/ddi_impldefs.h>
35#include <sys/ddi.h>

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45 * acpippm deals with those bits of ppm functionality that
46 * must be mediated by ACPI
47 *
48 * The routines in this driver is referenced by Platform
49 * Power Management driver of X86 workstation systems.
50 * acpippm driver is loaded because it is listed as a platform driver
51 * It is initially configured as a pseudo driver.
52 */
27#include <sys/types.h>
28#include <sys/conf.h>
29#include <sys/open.h>
30#include <sys/modctl.h>
31#include <sys/promif.h>
32#include <sys/stat.h>
33#include <sys/ddi_impldefs.h>
34#include <sys/ddi.h>

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44 * acpippm deals with those bits of ppm functionality that
45 * must be mediated by ACPI
46 *
47 * The routines in this driver is referenced by Platform
48 * Power Management driver of X86 workstation systems.
49 * acpippm driver is loaded because it is listed as a platform driver
50 * It is initially configured as a pseudo driver.
51 */
53extern void pc_tod_set_rtc_offsets(FADT_DESCRIPTOR *);
52extern void pc_tod_set_rtc_offsets(ACPI_TABLE_FADT *);
54
55/*
56 * Configuration Function prototypes and data structures
57 */
58static int appm_attach(dev_info_t *, ddi_attach_cmd_t);
59static int appm_detach(dev_info_t *, ddi_detach_cmd_t);
60static int appm_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **);
61static int appm_open(dev_t *dev_p, int flag, int otyp, cred_t *cred_p);

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192 * Driver attach(9e) entry point
193 */
194static int
195appm_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
196{
197 char *str = "appm_attach";
198 int instance;
199 appm_unit *unitp;
53
54/*
55 * Configuration Function prototypes and data structures
56 */
57static int appm_attach(dev_info_t *, ddi_attach_cmd_t);
58static int appm_detach(dev_info_t *, ddi_detach_cmd_t);
59static int appm_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **);
60static int appm_open(dev_t *dev_p, int flag, int otyp, cred_t *cred_p);

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191 * Driver attach(9e) entry point
192 */
193static int
194appm_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
195{
196 char *str = "appm_attach";
197 int instance;
198 appm_unit *unitp;
200 FADT_DESCRIPTOR *fadt = NULL;
199 ACPI_TABLE_FADT *fadt = NULL;
201 int rv = DDI_SUCCESS;
202
203 switch (cmd) {
204 case DDI_ATTACH:
205 break;
206 case DDI_RESUME:
207 return (DDI_SUCCESS);
208 default:

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250 /*
251 * create minor node for kernel_ioctl calls
252 */
253 rv = ddi_create_minor_node(dip, "acpi-ppm", S_IFCHR, instance, 0, 0);
254 if (rv != DDI_SUCCESS)
255 goto doerrs;
256
257 /* Get the FADT */
200 int rv = DDI_SUCCESS;
201
202 switch (cmd) {
203 case DDI_ATTACH:
204 break;
205 case DDI_RESUME:
206 return (DDI_SUCCESS);
207 default:

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249 /*
250 * create minor node for kernel_ioctl calls
251 */
252 rv = ddi_create_minor_node(dip, "acpi-ppm", S_IFCHR, instance, 0, 0);
253 if (rv != DDI_SUCCESS)
254 goto doerrs;
255
256 /* Get the FADT */
258 if (AcpiGetFirmwareTable(FADT_SIG, 1, ACPI_LOGICAL_ADDRESSING,
257 if (AcpiGetTable(ACPI_SIG_FADT, 1,
259 (ACPI_TABLE_HEADER **)&fadt) != AE_OK)
260 return (rv);
261
262 /* Init the RTC offsets */
263 if (fadt != NULL)
264 pc_tod_set_rtc_offsets(fadt);
265
266 return (rv);

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259 return (rv);
260
261 /* Init the RTC offsets */
262 if (fadt != NULL)
263 pc_tod_set_rtc_offsets(fadt);
264
265 return (rv);

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