diff options
Diffstat (limited to 'usr/src/uts/sun4u/mpxu/io/tsalarm.c')
| -rw-r--r-- | usr/src/uts/sun4u/mpxu/io/tsalarm.c | 379 |
1 files changed, 379 insertions, 0 deletions
diff --git a/usr/src/uts/sun4u/mpxu/io/tsalarm.c b/usr/src/uts/sun4u/mpxu/io/tsalarm.c new file mode 100644 index 0000000000..359a4d041f --- /dev/null +++ b/usr/src/uts/sun4u/mpxu/io/tsalarm.c @@ -0,0 +1,379 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2004 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/conf.h> +#include <sys/modctl.h> +#include <sys/sunddi.h> +#include <sys/callb.h> +#include <sys/strlog.h> +#include <sys/file.h> +#include <sys/lom_io.h> +#include <sys/ddi.h> +#include <sys/time.h> + +#define LOMIOCALCTL_OLD _IOW('a', 4, ts_aldata_t) +#define LOMIOCALSTATE_OLD _IOWR('a', 5, ts_aldata_t) + +struct tsalarm_softc { + dev_info_t *dip; + kmutex_t mutex; +}; + +#define getsoftc(minor) \ + ((struct tsalarm_softc *)ddi_get_soft_state(statep, (minor))) +/* + * Driver entry points + */ + +/* dev_ops and cb_ops entry point function declarations */ + +static int tsalarm_attach(dev_info_t *, ddi_attach_cmd_t); +static int tsalarm_detach(dev_info_t *, ddi_detach_cmd_t); +static int tsalarm_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **); + +static int tsalarm_open(dev_t *, int, int, cred_t *); +static int tsalarm_close(dev_t, int, int, cred_t *); +static int tsalarm_ioctl(dev_t, int, intptr_t, int, cred_t *, int *); + +static struct cb_ops tsalarm_cb_ops = { + tsalarm_open, /* open */ + tsalarm_close, /* close */ + nodev, /* strategy() */ + nodev, /* print() */ + nodev, /* dump() */ + nodev, /* read() */ + nodev, /* write() */ + tsalarm_ioctl, /* ioctl() */ + nodev, /* devmap() */ + nodev, /* mmap() */ + ddi_segmap, /* segmap() */ + nochpoll, /* poll() */ + ddi_prop_op, /* prop_op() */ + NULL, /* cb_str */ + D_NEW | D_MP /* cb_flag */ +}; + + +static struct dev_ops tsalarm_ops = { + DEVO_REV, + 0, /* ref count */ + tsalarm_getinfo, /* getinfo() */ + nulldev, /* identify() */ + nulldev, /* probe() */ + tsalarm_attach, /* attach() */ + tsalarm_detach, /* detach */ + nodev, /* reset */ + &tsalarm_cb_ops, /* pointer to cb_ops structure */ + (struct bus_ops *)NULL, + nulldev /* power() */ +}; + +/* + * Loadable module support. + */ +extern struct mod_ops mod_driverops; +static void *statep; + +static struct modldrv modldrv = { + &mod_driverops, /* Type of module. This is a driver */ + "tsalarm control driver v%I%", /* Name of the module */ + &tsalarm_ops /* pointer to the dev_ops structure */ +}; + +static struct modlinkage modlinkage = { + MODREV_1, + &modldrv, + NULL +}; + +extern int rmclomv_alarm_get(int alarm_type, int *alarm_state); +extern int rmclomv_alarm_set(int alarm_type, int new_state); + +int +_init(void) +{ + int e; + + if (e = ddi_soft_state_init(&statep, + sizeof (struct tsalarm_softc), 1)) { + return (e); + } + + if ((e = mod_install(&modlinkage)) != 0) { + ddi_soft_state_fini(&statep); + } + + return (e); +} + + +int +_fini(void) +{ + int e; + + if ((e = mod_remove(&modlinkage)) != 0) { + return (e); + } + + ddi_soft_state_fini(&statep); + + return (DDI_SUCCESS); +} + + +int +_info(struct modinfo *modinfop) +{ + return (mod_info(&modlinkage, modinfop)); +} + + +/* ARGSUSED */ +static int +tsalarm_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result) +{ + int inst = getminor((dev_t)arg); + int retval = DDI_SUCCESS; + struct tsalarm_softc *softc; + + switch (cmd) { + + case DDI_INFO_DEVT2DEVINFO: + if ((softc = getsoftc(inst)) == NULL) { + *result = (void *)NULL; + retval = DDI_FAILURE; + } else { + *result = (void *)softc->dip; + } + break; + + case DDI_INFO_DEVT2INSTANCE: + *result = (void *)inst; + break; + + default: + retval = DDI_FAILURE; + } + + return (retval); +} + +static int +tsalarm_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) +{ + + int inst; + struct tsalarm_softc *softc = NULL; + + switch (cmd) { + + case DDI_ATTACH: + inst = ddi_get_instance(dip); + /* + * Allocate a soft state structure for this instance. + */ + if (ddi_soft_state_zalloc(statep, inst) != DDI_SUCCESS) + goto attach_failed; + + softc = getsoftc(inst); + softc->dip = dip; + mutex_init(&softc->mutex, NULL, MUTEX_DRIVER, NULL); + /* + * Create minor node. The minor device number, inst, has no + * meaning. The model number above, which will be added to + * the device's softc, is used to direct peculiar behavior. + */ + if (ddi_create_minor_node(dip, "lom", S_IFCHR, 0, + DDI_PSEUDO, NULL) == DDI_FAILURE) + goto attach_failed; + + ddi_report_dev(dip); + return (DDI_SUCCESS); + + case DDI_RESUME: + return (DDI_SUCCESS); + + default: + return (DDI_FAILURE); + } + +attach_failed: + /* Free soft state, if allocated. remove minor node if added earlier */ + if (softc) { + mutex_destroy(&softc->mutex); + ddi_soft_state_free(statep, inst); + } + + ddi_remove_minor_node(dip, NULL); + + return (DDI_FAILURE); +} + +static int +tsalarm_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) +{ + int inst; + struct tsalarm_softc *softc; + + switch (cmd) { + + case DDI_DETACH: + inst = ddi_get_instance(dip); + if ((softc = getsoftc(inst)) == NULL) + return (DDI_FAILURE); + /* + * Free the soft state and remove minor node added earlier. + */ + ddi_remove_minor_node(dip, NULL); + mutex_destroy(&softc->mutex); + ddi_soft_state_free(statep, inst); + return (DDI_SUCCESS); + + case DDI_SUSPEND: + return (DDI_SUCCESS); + + default: + return (DDI_FAILURE); + + } +} + +/* ARGSUSED */ +static int +tsalarm_open(dev_t *devp, int flag, int otyp, cred_t *credp) +{ + int inst = getminor(*devp); + + return (getsoftc(inst) == NULL ? ENXIO : 0); +} + + +/* ARGSUSED */ +static int +tsalarm_close(dev_t dev, int flag, int otyp, cred_t *credp) +{ + int inst = getminor(dev); + + return (getsoftc(inst) == NULL ? ENXIO : 0); +} + + +/* ARGSUSED */ +static int +tsalarm_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, + cred_t *credp, int *rvalp) +{ + int inst = getminor(dev); + struct tsalarm_softc *softc; + int retval = 0; + ts_aldata_t ts_alinfo; + int alarm_type, alarm_state = 0; + + if ((softc = getsoftc(inst)) == NULL) + return (ENXIO); + + mutex_enter(&softc->mutex); + + switch (cmd) { + + case LOMIOCALSTATE: + case LOMIOCALSTATE_OLD: + { + if (ddi_copyin((caddr_t)arg, (caddr_t)&ts_alinfo, + sizeof (ts_aldata_t), mode) != 0) { + retval = EFAULT; + goto end; + } + + alarm_type = ts_alinfo.alarm_no; + if ((alarm_type < ALARM_CRITICAL) || + (alarm_type > ALARM_USER)) { + retval = EINVAL; + goto end; + } + + retval = rmclomv_alarm_get(alarm_type, &alarm_state); + + if (retval != 0) + goto end; + + if ((alarm_state != 0) && (alarm_state != 1)) { + retval = EIO; + goto end; + } + + ts_alinfo.alarm_state = alarm_state; + if (ddi_copyout((caddr_t)&ts_alinfo, (caddr_t)arg, + sizeof (ts_aldata_t), mode) != 0) { + retval = EFAULT; + goto end; + } + + } + break; + + case LOMIOCALCTL: + case LOMIOCALCTL_OLD: + { + if (ddi_copyin((caddr_t)arg, (caddr_t)&ts_alinfo, + sizeof (ts_aldata_t), mode) != 0) { + retval = EFAULT; + goto end; + } + + alarm_type = ts_alinfo.alarm_no; + alarm_state = ts_alinfo.alarm_state; + + if ((alarm_type < ALARM_CRITICAL) || + (alarm_type > ALARM_USER)) { + retval = EINVAL; + goto end; + } + if ((alarm_state < ALARM_OFF) || + (alarm_state > ALARM_ON)) { + retval = EINVAL; + goto end; + } + + retval = rmclomv_alarm_set(alarm_type, alarm_state); + } + break; + + default: + retval = EINVAL; + break; + } + +end: + mutex_exit(&softc->mutex); + + return (retval); +} |
