+++ /dev/null
-diff -rduNp linux-2.6.20.3.orig/drivers/char/ipmi/ipmi_msghandler.c linux-2.6.20.3/drivers/char/ipmi/ipmi_msghandler.c
---- linux-2.6.20.3.orig/drivers/char/ipmi/ipmi_msghandler.c 2007-03-13 19:27:08.000000000 +0100
-+++ linux-2.6.20.3/drivers/char/ipmi/ipmi_msghandler.c 2007-03-14 14:23:02.000000000 +0100
-@@ -1954,6 +1954,24 @@ static void remove_proc_entries(ipmi_smi
- #endif /* CONFIG_PROC_FS */
- }
-
-+/*
-+ * Retrieves the bmc_device struct for a given ipmi interface number (or NULL if none).
-+ */
-+struct device *ipmi_get_bmcdevice(int if_num)
-+{
-+ ipmi_smi_t intf;
-+ mutex_lock(&ipmi_interfaces_mutex);
-+ list_for_each_entry_rcu(intf, &ipmi_interfaces, link) {
-+ if (intf->intf_num == if_num){
-+ mutex_unlock(&ipmi_interfaces_mutex);
-+ return &intf->bmc->dev->dev;
-+ }
-+ }
-+ mutex_unlock(&ipmi_interfaces_mutex);
-+
-+ return NULL;
-+}
-+
- static int __find_bmc_guid(struct device *dev, void *data)
- {
- unsigned char *id = data;
-@@ -4183,3 +4201,4 @@ EXPORT_SYMBOL(ipmi_get_my_LUN);
- EXPORT_SYMBOL(ipmi_smi_add_proc_entry);
- EXPORT_SYMBOL(ipmi_user_set_run_to_completion);
- EXPORT_SYMBOL(ipmi_free_recv_msg);
-+EXPORT_SYMBOL(ipmi_get_bmcdevice);
-diff -rduNp linux-2.6.20.3.orig/drivers/hwmon/Kconfig linux-2.6.20.3/drivers/hwmon/Kconfig
---- linux-2.6.20.3.orig/drivers/hwmon/Kconfig 2007-03-13 19:27:08.000000000 +0100
-+++ linux-2.6.20.3/drivers/hwmon/Kconfig 2007-03-14 14:23:02.000000000 +0100
-@@ -218,6 +218,16 @@ config SENSORS_GL520SM
- This driver can also be built as a module. If so, the module
- will be called gl520sm.
-
-+config SENSORS_IPMI
-+ tristate "IPMI Hardware Monitoring Support"
-+ depends on HWMON && IPMI_HANDLER && EXPERIMENTAL
-+ help
-+ If you say yes here you get support for sensors monitored by
-+ an IPMI baseboard management controller (BMC).
-+
-+ This driver can also be built as a module. If so, the module
-+ will be called ipmisensors.
-+
- config SENSORS_IT87
- tristate "ITE IT87xx and compatibles"
- depends on HWMON && I2C
-diff -rduNp linux-2.6.20.3.orig/drivers/hwmon/Makefile linux-2.6.20.3/drivers/hwmon/Makefile
---- linux-2.6.20.3.orig/drivers/hwmon/Makefile 2007-03-13 19:27:08.000000000 +0100
-+++ linux-2.6.20.3/drivers/hwmon/Makefile 2007-03-14 14:23:02.000000000 +0100
-@@ -28,6 +28,7 @@ obj-$(CONFIG_SENSORS_FSCPOS) += fscpos.o
- obj-$(CONFIG_SENSORS_GL518SM) += gl518sm.o
- obj-$(CONFIG_SENSORS_GL520SM) += gl520sm.o
- obj-$(CONFIG_SENSORS_HDAPS) += hdaps.o
-+obj-$(CONFIG_SENSORS_IPMI) += ipmisensors.o
- obj-$(CONFIG_SENSORS_IT87) += it87.o
- obj-$(CONFIG_SENSORS_K8TEMP) += k8temp.o
- obj-$(CONFIG_SENSORS_LM63) += lm63.o
-diff -rduNp linux-2.6.20.3.orig/drivers/hwmon/ipmisensors.c linux-2.6.20.3/drivers/hwmon/ipmisensors.c
---- linux-2.6.20.3.orig/drivers/hwmon/ipmisensors.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.20.3/drivers/hwmon/ipmisensors.c 2007-03-14 14:44:42.000000000 +0100
-@@ -0,0 +1,1552 @@
-+/*
-+ * ipmisensors.c - lm-sensors/hwmon interface to IPMI sensors.
-+ *
-+ * Copyright (C) 2004-2006 Yani Ioannou <yani.ioannou@gmail.com>
-+ *
-+ * Adapted from bmcsensors (lm-sensors for linux 2.4)
-+ * bmcsensors (C) Mark D. Studebaker <mdsxyz123@yahoo.com>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License as published by
-+ * the Free Software Foundation; either version 2 of the License, or
-+ * (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-+ */
-+
-+#include <linux/init.h>
-+#include <linux/module.h>
-+#include <linux/param.h>
-+#include <linux/hwmon.h>
-+#include <linux/list.h>
-+#include <linux/slab.h>
-+#include <linux/device.h>
-+#include <linux/hwmon.h>
-+
-+#include "ipmisensors.h"
-+
-+/****** Function Prototypes ******/
-+static void ipmisensors_send_message(struct ipmisensors_bmc_data *bmc,
-+ long msgid, struct kernel_ipmi_msg *msg);
-+static void ipmisensors_reserve_sdr(struct ipmisensors_bmc_data *bmc);
-+static void ipmisensors_get_sdr(struct ipmisensors_bmc_data *bmc, u16 res_id,
-+ u16 record, u8 offset);
-+static void ipmisensors_set_sensor_threshold(struct ipmisensors_bmc_data *bmc,
-+ u8 number, int value,
-+ int lim_index);
-+static void ipmisensors_get_reading(struct ipmisensors_bmc_data *bmc,
-+ struct sdrdata *sdr);
-+static void ipmisensors_msg_handler(struct ipmi_recv_msg *msg,
-+ void *user_msg_data);
-+static int ipmisensors_intf_registered(int ipmi_intf);
-+static int ipmisensors_bmc_registered(struct device *bmc);
-+static void ipmisensors_register_bmc(int ipmi_intf, struct ipmi_addr *address);
-+static void ipmisensors_unregister_bmc(int ipmi_intf);
-+static void ipmisensors_unregister_bmc_all(void);
-+static void ipmisensors_new_smi(int if_num, struct device *dev);
-+static void ipmisensors_smi_gone(int if_num);
-+static void ipmisensors_update_bmc(struct work_struct *);
-+static void ipmisensors_cleanup(void);
-+
-+/****** Static Vars ******/
-+
-+/* set when module is being removed */
-+static int cleanup = 0;
-+
-+/* ipmisensors driver data */
-+static struct ipmisensors_data driver_data = {
-+ .driver_name = "bmc",
-+ .bmc_data = LIST_HEAD_INIT(driver_data.bmc_data),
-+ .interfaces = 0,
-+ .smi_watcher = {
-+ .owner = THIS_MODULE,
-+ .new_smi = ipmisensors_new_smi,
-+ .smi_gone = ipmisensors_smi_gone,
-+ },
-+ .ipmi_hndlrs = {
-+ .ipmi_recv_hndl = ipmisensors_msg_handler,
-+ },
-+};
-+
-+/* sensor refresh workqueue */
-+static struct workqueue_struct *ipmisensors_workqueue;
-+
-+/****** SDR List Functions ******/
-+/**
-+ * Creates a new sdrdata struct, or returns NULL if insufficient memory.
-+ */
-+static struct sdrdata *ipmisensors_new_sdr(void)
-+{
-+ struct sdrdata *sdr;
-+
-+ sdr = kmem_cache_alloc(driver_data.sdrdata_cache, GFP_ATOMIC);
-+ if (sdr) {
-+ memset(sdr, 0, sizeof(struct sdrdata));
-+ } else {
-+ printk(KERN_ERR
-+ "ipmisensors: Couldn't allocate memory for new SDR\n");
-+ }
-+
-+ return sdr;
-+}
-+
-+/**
-+ * Adds the given sdrdata struct to the given bmc's SDR list.
-+ *
-+ * @bmc: the bmc to send the message to.
-+ */
-+static inline void ipmisensors_add_sdr(struct ipmisensors_bmc_data *bmc,
-+ struct sdrdata *sdr)
-+{
-+ list_add(&sdr->list, &bmc->sdrs);
-+ printk(KERN_DEBUG
-+ "ipmisensors: SDR %d: type 0x%02x (%s)\n",
-+ bmc->sdr_count, sdr->stype, sdr->id);
-+ bmc->sdr_count++;
-+}
-+
-+/**
-+ * Cleanup the sdr list for the given BMC.
-+ *
-+ * @bmc: the bmc to send the message to.
-+ */
-+static void ipmisensors_sdr_cleanup(struct ipmisensors_bmc_data *bmc)
-+{
-+ struct sdrdata *cursor, *next;
-+
-+ /* find and free each sdr data struct */
-+ list_for_each_entry_safe(cursor, next, &bmc->sdrs, list) {
-+ device_remove_file(bmc->dev, &cursor->attr.dev_attr);
-+ device_remove_file(bmc->dev, &cursor->attr_min.dev_attr);
-+ device_remove_file(bmc->dev, &cursor->attr_max.dev_attr);
-+ device_remove_file(bmc->dev, &cursor->attr_label.dev_attr);
-+
-+ kfree(cursor->attr_name);
-+ kfree(cursor->attr_max_name);
-+ kfree(cursor->attr_min_name);
-+ kfree(cursor->attr_label_name);
-+
-+ list_del(&cursor->list);
-+ kmem_cache_free(driver_data.sdrdata_cache, cursor);
-+ }
-+}
-+
-+/* worker function for workqueue ipmisensors_workqueue */
-+static void ipmisensors_update_bmc(struct work_struct *work)
-+{
-+ struct ipmisensors_bmc_data *bmc = container_of(work, struct ipmisensors_bmc_data, update_work.work);
-+
-+ /* don't start an update cycle if one already in progress */
-+ if (bmc->state != STATE_READING) {
-+ struct sdrdata *cursor, *next;
-+ bmc->state = STATE_READING;
-+ printk(KERN_DEBUG "ipmisensors: starting update\n");
-+
-+ /* init semaphore to 1 for update cycle */
-+ sema_init(&bmc->update_semaphore, 1);
-+
-+ /* update each sdr reading */
-+ list_for_each_entry_safe(cursor, next, &bmc->sdrs, list) {
-+ ipmisensors_get_reading(bmc, cursor);
-+ }
-+ }
-+
-+ /* wait for readings (need timeout?) */
-+ down_interruptible(&bmc->update_semaphore);
-+
-+ printk(KERN_DEBUG "ipmisensors: update complete\n");
-+
-+ bmc->state = STATE_DONE;
-+
-+ /* if the module isn't cleaning up, schedule another update */
-+ if (!cleanup)
-+ queue_delayed_work(ipmisensors_workqueue, &bmc->update_work,
-+ bmc->update_period * HZ);
-+}
-+
-+/****** IPMI Message Sending ******/
-+
-+/**
-+ * Send a message to the IPMI BMC
-+ *
-+ * @bmc: the bmc to send the message to.
-+ * @msgid: the message id to use.
-+ * @msg: the ipmi message structure.
-+ */
-+static void ipmisensors_send_message(struct ipmisensors_bmc_data *bmc,
-+ long msgid, struct kernel_ipmi_msg *msg)
-+{
-+ if (msg->data == NULL)
-+ printk(KERN_DEBUG "ipmisensors: Send 0x%x\n", msg->cmd);
-+ else
-+ printk(KERN_DEBUG "ipmisensors: Send 0x%x 0x%x 0x%x\n",
-+ msg->cmd, msg->data[0], msg->data[1]);
-+
-+ /* This should be ipmi_request, but Corey had to remove
-+ * that due to it being unused at the moment, as soon as
-+ * this makes it into the kernel we should request it be re-instated.
-+ */
-+ ipmi_request_settime(bmc->user, &bmc->address, msgid, msg, bmc, 0,
-+ -1, 0);
-+}
-+
-+/**
-+ * Compose and send a "reserve SDR" message
-+ *
-+ * @bmc: the bmc to send the message to.
-+ */
-+static void ipmisensors_reserve_sdr(struct ipmisensors_bmc_data *bmc)
-+{
-+ bmc->tx_message.netfn = IPMI_NETFN_STORAGE_REQUEST;
-+ bmc->tx_message.cmd = IPMI_RESERVE_SDR;
-+ bmc->tx_message.data_len = 0;
-+ bmc->tx_message.data = NULL;
-+
-+ ipmisensors_send_message(bmc, bmc->msgid++, &bmc->tx_message);
-+}
-+
-+/**
-+ * Componse and send a "get SDR" message
-+ *
-+ * @bmc: the bmc to send the message to.
-+ * @res_id:
-+ * @record:
-+ * @offset:
-+ */
-+static void ipmisensors_get_sdr(struct ipmisensors_bmc_data *bmc, u16 res_id,
-+ u16 record, u8 offset)
-+{
-+ printk(KERN_DEBUG "ipmisensors: Get SDR 0x%x 0x%x 0x%x\n",
-+ res_id, record, offset);
-+ bmc->tx_message.netfn = IPMI_NETFN_STORAGE_REQUEST;
-+ bmc->tx_message.cmd = IPMI_GET_SDR;
-+ bmc->tx_message.data_len = 6;
-+ bmc->tx_message.data = bmc->tx_msg_data;
-+ bmc->tx_msg_data[0] = res_id & 0xff;
-+ bmc->tx_msg_data[1] = res_id >> 8;
-+ bmc->tx_msg_data[2] = record & 0xff;
-+ bmc->tx_msg_data[3] = record >> 8;
-+ bmc->tx_msg_data[4] = offset;
-+ bmc->tx_msg_data[5] = bmc->ipmi_sdr_partial_size;
-+
-+ ipmisensors_send_message(bmc, bmc->msgid++, &bmc->tx_message);
-+}
-+
-+/**
-+ * Compose and send a "set sensor threshold" message
-+ *
-+ * @bmc: the bmc to send the message to.
-+ * @id: the ipmi id number of the sensor.
-+ * @value: the new value for the threshold.
-+ * @lim_index: the index in the lim[] array for which this value applies.
-+ */
-+static void ipmisensors_set_sensor_threshold(struct ipmisensors_bmc_data *bmc,
-+ u8 number, int value,
-+ int lim_index)
-+{
-+ int i;
-+
-+ printk(KERN_DEBUG "ipmisensors: Set SDR Threshold %d %d %d\n",
-+ number, value, lim_index);
-+ bmc->tx_message.netfn = IPMI_NETFN_STORAGE_REQUEST;
-+ bmc->tx_message.cmd = IPMI_SET_SENSOR_THRESHOLD;
-+ bmc->tx_message.data_len = 8;
-+ bmc->tx_message.data = bmc->tx_msg_data;
-+ bmc->tx_msg_data[0] = number & 0xff;
-+ bmc->tx_msg_data[1] = 0x01 << lim_index;
-+
-+ if (lim_index > 5 || lim_index < 0) {
-+ printk(KERN_INFO
-+ "ipmisensors: Error - ipmisensors_set_sensor_threshold given invalid lim_index\n");
-+ return;
-+ }
-+
-+ for (i = 2; i < 8; i++)
-+ bmc->tx_msg_data[i] = 0x00;
-+
-+ bmc->tx_msg_data[lim_index] = value && 0xff;
-+
-+ ipmisensors_send_message(bmc, bmc->msgid++, &bmc->tx_message);
-+}
-+
-+/**
-+ * Compose and send a "get sensor reading" message for the given sdr.
-+ *
-+ * @bmc: the bmc to send the message to.
-+ * @sdr: the sdr of the sensor to get the reading for.
-+ */
-+static void ipmisensors_get_reading(struct ipmisensors_bmc_data *bmc,
-+ struct sdrdata *sdr)
-+{
-+ bmc->tx_message.netfn = IPMI_NETFN_SENSOR_EVENT_REQUEST;
-+ bmc->tx_message.cmd = IPMI_GET_SENSOR_STATE_READING;
-+ bmc->tx_message.data_len = 1;
-+ bmc->tx_message.data = bmc->tx_msg_data;
-+ bmc->tx_msg_data[0] = sdr->number;
-+ bmc->current_sdr = sdr;
-+
-+ ipmisensors_send_message(bmc, bmc->msgid++, &bmc->tx_message);
-+ down_interruptible(&bmc->update_semaphore);
-+}
-+
-+/****** IPMI Message Receiving ******/
-+
-+/**
-+ * Process an sensor reading response message.
-+ *
-+ * @bmc: the bmc the message is from
-+ * @msg: the IPMI SDR response message
-+ */
-+static void ipmisensors_rcv_reading_msg(struct ipmisensors_bmc_data *bmc,
-+ struct kernel_ipmi_msg *msg)
-+{
-+ struct sdrdata *sdr = bmc->current_sdr;
-+
-+ if (sdr == NULL) {
-+ printk(KERN_ERR
-+ "ipmisensors: Error ipmisensors_rcv_reading with NULL sdr\n");
-+ return;
-+ }
-+
-+ sdr->reading = msg->data[1];
-+ sdr->status = msg->data[2];
-+ sdr->thresholds = msg->data[3];
-+
-+ printk(KERN_DEBUG "ipmisensors: sensor %d (type %d) reading %d\n",
-+ sdr->number, sdr->stype, msg->data[1]);
-+
-+ up(&bmc->update_semaphore);
-+}
-+
-+/**
-+ * Unpack based on string type, convert to normal, null terminate.
-+ */
-+static void ipmisensors_sprintf(u8 * to, u8 * from, u8 type, u8 length)
-+{
-+ static const u8 *bcdplus = "0123456789 -.:,_";
-+ int i;
-+
-+ switch (type) {
-+ case 0: /* unicode */
-+ for (i = 0; i < length; i++)
-+ *to++ = (*from++ & 0x7f);
-+ *to = 0;
-+ break;
-+ case 1: /* BCD Plus */
-+ for (i = 0; i < length; i++)
-+ *to++ = bcdplus[*from++ & 0x0f];
-+ *to = 0;
-+ break;
-+ case 2: /* packed ascii *//* if not a mult. of 3 this will run over */
-+ for (i = 0; i < length; i += 3) {
-+ *to++ = *from & 0x3f;
-+ *to++ = *from >> 6 | ((*(from+1) & 0xf) << 2);
-+ from++;
-+ *to++ = *from >> 4 | ((*(from+1) & 0x3) << 4);
-+ from++;
-+ *to++ = (*from++ >> 2) & 0x3f;
-+ }
-+ *to = 0;
-+ break;
-+ case 3: /* normal */
-+ if (length > 1)
-+ memcpy(to, from, length);
-+ to[length] = 0;
-+ break;
-+ }
-+}
-+
-+/* IPMI V1.5 Section 30 */
-+static const int exps[] =
-+ { 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000 };
-+
-+/* Return 0 for fan, 2 for temp, 3 for voltage
-+ We could make it variable based on the accuracy (= log10(m * 10**k2));
-+ this would work for /proc output, however libsensors resolution
-+ is statically set in lib/chips.c */
-+static int decplaces(struct sdrdata *sd)
-+{
-+ switch (sd->stype) {
-+ case STYPE_TEMP:
-+ return 2;
-+ case STYPE_CURR:
-+ case STYPE_VOLT:
-+ return 3;
-+ case STYPE_FAN:
-+ default:
-+ return 0;
-+ }
-+}
-+
-+/* convert a raw value to a reading. IMPI V1.5 Section 30 */
-+static long conv_val(int value, struct sdrdata *sd)
-+{
-+ u8 k1, k2;
-+ long r;
-+
-+ r = value * sd->m;
-+ k1 = sd->k & 0x0f;
-+ k2 = sd->k >> 4;
-+ if (k1 < 8)
-+ r += sd->b * exps[k1];
-+ else
-+ r += sd->b / exps[16 - k1];
-+ r *= exps[decplaces(sd)];
-+ if (k2 < 8) {
-+ if (sd->linear != 7)
-+ r *= exps[k2];
-+ else
-+ /* this will always truncate to 0: r = 1 / (exps[k2] * r); */
-+ r = 0;
-+ } else {
-+ if (sd->linear != 7)
-+ r /= exps[16 - k2];
-+ else {
-+ if (r != 0)
-+ /* 1 / x * 10 ** (-m) == 10 ** m / x */
-+ r = exps[16 - k2] / r;
-+ else
-+ r = 0;
-+ }
-+ }
-+
-+ return r;
-+}
-+
-+static const char *threshold_text[] = {
-+ "upper non-recoverable threshold",
-+ "upper critical threshold",
-+ "upper non-critical threshold",
-+ "lower non-recoverable threshold",
-+ "lower critical threshold",
-+ "lower non-critical threshold",
-+ "positive-going hysteresis",
-+ "negative-going hysteresis" /* unused */
-+};
-+
-+/* select two out of the 8 possible readable thresholds, and place indexes into the limits
-+ array into lim1 and lim2. Set writable flags */
-+static void ipmisensors_select_thresholds(struct sdrdata *sd)
-+{
-+ u8 capab = sd->capab;
-+ u16 mask = sd->thresh_mask;
-+ int tmp;
-+
-+ sd->lim1 = -1;
-+ sd->lim2 = -1;
-+ sd->lim1_write = 0;
-+ sd->lim2_write = 0;
-+
-+ if (((capab & 0x0c) == 0x04) || /* readable thresholds ? */
-+ ((capab & 0x0c) == 0x08)) {
-+ /* select upper threshold */
-+ if (mask & 0x10) { /* upper crit */
-+ sd->lim1 = 1;
-+ if ((capab & 0x0c) == 0x08 && (mask & 0x1000))
-+ sd->lim1_write = 1;
-+ } else if (mask & 0x20) { /* upper non-recov */
-+ sd->lim1 = 0;
-+ if ((capab & 0x0c) == 0x08 && (mask & 0x2000))
-+ sd->lim1_write = 1;
-+ } else if (mask & 0x08) { /* upper non-crit */
-+ sd->lim1 = 2;
-+ if ((capab & 0x0c) == 0x08 && (mask & 0x0800))
-+ sd->lim1_write = 1;
-+ }
-+
-+ /* select lower threshold */
-+ if ((((capab & 0x30) == 0x10) || /* readable ? */
-+ ((capab & 0x30) == 0x20)) && /* pos hyst */
-+ sd->stype == STYPE_TEMP)
-+ sd->lim2 = 6;
-+ else if (mask & 0x02) { /* lower crit */
-+ sd->lim2 = 4;
-+ if ((capab & 0x0c) == 0x08 && (mask & 0x0200))
-+ sd->lim2_write = 1;
-+ } else if (mask & 0x04) { /* lower non-recov */
-+ sd->lim2 = 3;
-+ if ((capab & 0x0c) == 0x08 && (mask & 0x0400))
-+ sd->lim2_write = 1;
-+ } else if (mask & 0x01) { /* lower non-crit */
-+ sd->lim2 = 5;
-+ if ((capab & 0x0c) == 0x08 && (mask & 0x0100))
-+ sd->lim2_write = 1;
-+ }
-+ }
-+
-+ /* swap lim1/lim2 if m < 0 or function is 1/x (but not both!) */
-+ if ((sd->m < 0 && sd->linear != 7) || (sd->m >= 0 && sd->linear == 7)) {
-+ tmp = sd->lim1;
-+ sd->lim1 = sd->lim2;
-+ sd->lim2 = tmp;
-+ }
-+
-+ if (sd->lim1 >= 0)
-+ printk(KERN_INFO "ipmisensors: using %s for upper limit\n",
-+ threshold_text[sd->lim1]);
-+ else
-+ printk(KERN_DEBUG "ipmisensors: no readable upper limit\n");
-+
-+ if (sd->lim2 >= 0)
-+ printk(KERN_INFO "ipmisensors: using %s for lower limit\n",
-+ threshold_text[sd->lim2]);
-+ else
-+ printk(KERN_DEBUG "ipmisensors: no readable lower limit\n");
-+}
-+
-+/************* sysfs callback functions *********/
-+static ssize_t show_update_period(struct device *dev,
-+ struct device_attribute *attr, char *buf)
-+{
-+ struct ipmisensors_bmc_device_attribute *aattr =
-+ to_ipmisensors_bmc_dev_attr(attr);
-+
-+ return snprintf(buf, 20, "%d\n", aattr->bmc->update_period);
-+}
-+
-+static ssize_t store_update_period(struct device *dev,
-+ struct device_attribute *attr,
-+ const char *buf, size_t count)
-+{
-+ struct ipmisensors_bmc_device_attribute *aattr =
-+ to_ipmisensors_bmc_dev_attr(attr);
-+
-+ aattr->bmc->update_period = simple_strtoul(buf, NULL, 10);;
-+ return count;
-+};
-+
-+static ssize_t show_sensor(struct device *dev, struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct ipmisensors_device_attribute *sattr =
-+ to_ipmisensors_dev_attr(attr);
-+ return snprintf(buf, 20, "%ld\n",
-+ conv_val(sattr->sdr->reading, sattr->sdr));
-+}
-+
-+static ssize_t show_sensor_max(struct device *dev,
-+ struct device_attribute *attr, char *buf)
-+{
-+ long max = 0;
-+ struct ipmisensors_device_attribute *sattr =
-+ to_ipmisensors_dev_attr(attr);
-+
-+ if (sattr->sdr->lim1 >= 0)
-+ max = conv_val(sattr->sdr->limits[sattr->sdr->lim1],
-+ sattr->sdr);
-+ return snprintf(buf, 20, "%ld\n", max);
-+}
-+
-+static ssize_t show_sensor_min(struct device *dev,
-+ struct device_attribute *attr, char *buf)
-+{
-+ long min = 0;
-+ struct ipmisensors_device_attribute *sattr =
-+ to_ipmisensors_dev_attr(attr);
-+
-+ if (sattr->sdr->lim2 >= 0)
-+ min = conv_val(sattr->sdr->limits[sattr->sdr->lim2],
-+ sattr->sdr);
-+ return snprintf(buf, 20, "%ld\n", min);
-+};
-+
-+static ssize_t show_sensor_label(struct device *dev,
-+ struct device_attribute *attr, char *buf)
-+{
-+ u8 label[SDR_MAX_UNPACKED_ID_LENGTH];
-+ struct ipmisensors_device_attribute *sattr =
-+ to_ipmisensors_dev_attr(attr);
-+
-+ ipmisensors_sprintf(label, sattr->sdr->id, sattr->sdr->string_type,
-+ sattr->sdr->id_length);
-+ return snprintf(buf, 20, "%s\n", label);
-+};
-+
-+static ssize_t store_sensor_max(struct device *dev,
-+ struct device_attribute *attr, const char *buf,
-+ size_t count)
-+{
-+ long val = simple_strtoul(buf, NULL, 10);
-+ struct ipmisensors_device_attribute *sattr =
-+ to_ipmisensors_dev_attr(attr);
-+ printk(KERN_DEBUG "ipmisensors: set max on sensor #%d to %ld",
-+ sattr->sdr->number, val);
-+ ipmisensors_set_sensor_threshold(sattr->sdr->bmc, sattr->sdr->number,
-+ val, sattr->sdr->lim1);
-+ return count;
-+};
-+
-+static ssize_t store_sensor_min(struct device *dev,
-+ struct device_attribute *attr, const char *buf,
-+ size_t count)
-+{
-+ long val = simple_strtoul(buf, NULL, 10);
-+ struct ipmisensors_device_attribute *sattr =
-+ to_ipmisensors_dev_attr(attr);
-+ printk(KERN_DEBUG "ipmisensors: set min on sensor #%d to %ld",
-+ sattr->sdr->number, val);
-+ ipmisensors_set_sensor_threshold(sattr->sdr->bmc, sattr->sdr->number,
-+ val, sattr->sdr->lim2);
-+ return count;
-+};
-+
-+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct ipmisensors_bmc_device_attribute *aattr =
-+ to_ipmisensors_bmc_dev_attr(attr);
-+ return snprintf(buf, 20, "%d\n", aattr->bmc->alarms);
-+};
-+
-+static ssize_t show_name(struct device *dev, struct device_attribute *attr,
-+ char *buf)
-+{
-+ return snprintf(buf, 20, "%s\n", driver_data.driver_name);
-+};
-+
-+/* work function to build the sysfs entries using the ipmi sdrs */
-+static void ipmisensors_build_sysfs(struct work_struct *work)
-+{
-+ int temps = 0, volts = 0, currs = 0, fans = 0;
-+ struct sdrdata *cursor, *next;
-+ struct ipmisensors_bmc_data *bmc = container_of(work, struct ipmisensors_bmc_data, sysfs_work);
-+
-+ /* find and create entries for each sdr data struct */
-+ list_for_each_entry_safe(cursor, next, &bmc->sdrs, list) {
-+ u8 id[SDR_MAX_UNPACKED_ID_LENGTH];
-+
-+ cursor->attr_name =
-+ (char *)kmalloc(sizeof(char) * MAX_FILENAME_LENGTH,
-+ GFP_KERNEL);
-+ cursor->attr_max_name =
-+ (char *)kmalloc(sizeof(char) * MAX_FILENAME_LENGTH,
-+ GFP_KERNEL);
-+ cursor->attr_min_name =
-+ (char *)kmalloc(sizeof(char) * MAX_FILENAME_LENGTH,
-+ GFP_KERNEL);
-+
-+ if (cursor->id_length > 0) {
-+ cursor->attr_label_name =
-+ (char *)kmalloc(sizeof(char) * MAX_FILENAME_LENGTH,
-+ GFP_KERNEL);
-+
-+ if (cursor->attr_label_name == NULL) {
-+ printk(KERN_INFO
-+ "ipmisensors: Out of memory (kmalloc failed)");
-+ kfree(cursor->attr_name);
-+ kfree(cursor->attr_max_name);
-+ kfree(cursor->attr_min_name);
-+ return;
-+ }
-+ }
-+
-+ if (cursor->attr_name == NULL || cursor->attr_max_name == NULL
-+ || cursor->attr_min_name == NULL
-+ || cursor->attr_label_name == NULL) {
-+ printk(KERN_INFO
-+ "ipmisensors: Out of memory (kmalloc failed)");
-+ kfree(cursor->attr_name);
-+ kfree(cursor->attr_max_name);
-+ kfree(cursor->attr_min_name);
-+ kfree(cursor->attr_label_name);
-+ return;
-+ }
-+
-+ switch (cursor->stype) {
-+ case (STYPE_TEMP):
-+ /* create the name of the sensor */
-+ snprintf(cursor->attr_name, MAX_FILENAME_LENGTH,
-+ "temp%d_input", ++temps);
-+ /* create min, max attributes */
-+ snprintf(cursor->attr_max_name, MAX_FILENAME_LENGTH,
-+ "temp%d_max", temps);
-+ snprintf(cursor->attr_min_name, MAX_FILENAME_LENGTH,
-+ "temp%d_min", temps);
-+ /* create the label of the sensor */
-+ snprintf(cursor->attr_label_name, MAX_FILENAME_LENGTH,
-+ "temp%d_label", temps);
-+ break;
-+ case (STYPE_VOLT):
-+ /* create the name of the sensor */
-+ snprintf(cursor->attr_name, MAX_FILENAME_LENGTH,
-+ "in%d_input", ++volts);
-+ /* create min, max attributes */
-+ snprintf(cursor->attr_max_name, MAX_FILENAME_LENGTH,
-+ "in%d_max", volts);
-+ snprintf(cursor->attr_min_name, MAX_FILENAME_LENGTH,
-+ "in%d_min", volts);
-+ /* create the label of the sensor */
-+ snprintf(cursor->attr_label_name, MAX_FILENAME_LENGTH,
-+ "in%d_label", volts);
-+ break;
-+ case (STYPE_CURR):
-+ /* create the name of the sensor */
-+ snprintf(cursor->attr_name, MAX_FILENAME_LENGTH,
-+ "curr%d_input", ++currs);
-+ /* create min, max attributes */
-+ sprintf(cursor->attr_max_name, "curr%d_max", currs);
-+ sprintf(cursor->attr_min_name, "curr%d_min", currs);
-+ /* create the label of the sensor */
-+ snprintf(cursor->attr_label_name, MAX_FILENAME_LENGTH,
-+ "curr%d_label", currs);
-+ break;
-+ case (STYPE_FAN):
-+ /* create the name of the sensor */
-+ snprintf(cursor->attr_name, MAX_FILENAME_LENGTH,
-+ "fan%d_input", ++fans);
-+ /* create min, max attributes */
-+ sprintf(cursor->attr_max_name, "fan%d_max", fans);
-+ sprintf(cursor->attr_min_name, "fan%d_min", fans);
-+ /* create the label of the sensor */
-+ snprintf(cursor->attr_label_name, MAX_FILENAME_LENGTH,
-+ "fan%d_label", fans);
-+ break;
-+ default:
-+ printk(KERN_INFO "ipmisensors: unkown sensor type\n");
-+ continue;
-+ }
-+
-+ cursor->attr.dev_attr.attr.name = cursor->attr_name;
-+ cursor->attr.dev_attr.attr.mode = S_IRUGO;
-+ cursor->attr.dev_attr.attr.owner = THIS_MODULE;
-+ cursor->attr.dev_attr.show = show_sensor;
-+ cursor->attr.dev_attr.store = NULL;
-+ cursor->attr.sdr = cursor;
-+
-+ cursor->attr_min.dev_attr.attr.name = cursor->attr_min_name;
-+ cursor->attr_min.dev_attr.attr.owner = THIS_MODULE;
-+ cursor->attr_min.dev_attr.show = show_sensor_min;
-+ cursor->attr_min.sdr = cursor;
-+
-+ if (cursor->lim2_write) {
-+ printk(KERN_INFO
-+ "ipmisensors: You have a writable sensor threshold! Send me an e-mail at <yani.ioannou@gmail.com>.\n");
-+ cursor->attr_min.dev_attr.store = store_sensor_min;
-+ cursor->attr_min.dev_attr.attr.mode = S_IWUSR | S_IRUGO;
-+ } else {
-+ cursor->attr_min.dev_attr.store = NULL;
-+ cursor->attr_min.dev_attr.attr.mode = S_IRUGO;
-+ }
-+
-+ cursor->attr_max.dev_attr.attr.name = cursor->attr_max_name;
-+ cursor->attr_max.dev_attr.attr.owner = THIS_MODULE;
-+ cursor->attr_max.dev_attr.show = show_sensor_max;
-+ cursor->attr_max.sdr = cursor;
-+
-+ if (cursor->lim1_write) {
-+ printk(KERN_INFO
-+ "ipmisensors: You have a writable sensor threshold! Send me an e-mail at <yani.ioannou@gmail.com>.\n");
-+ cursor->attr_max.dev_attr.store = store_sensor_max;
-+ cursor->attr_max.dev_attr.attr.mode = S_IWUSR | S_IRUGO;
-+ } else {
-+ cursor->attr_max.dev_attr.store = NULL;
-+ cursor->attr_max.dev_attr.attr.mode = S_IRUGO;
-+ }
-+
-+ if (cursor->id_length > 0) {
-+ cursor->attr_label.dev_attr.attr.name =
-+ cursor->attr_label_name;
-+ cursor->attr_label.dev_attr.attr.mode = S_IRUGO;
-+ cursor->attr_label.dev_attr.attr.owner = THIS_MODULE;
-+ cursor->attr_label.dev_attr.show = show_sensor_label;
-+ cursor->attr_label.dev_attr.store = NULL;
-+ cursor->attr_label.sdr = cursor;
-+ }
-+
-+ printk(KERN_INFO
-+ "ipmisensors: registering sensor %d: (type 0x%.2x) "
-+ "(fmt=%d; m=%d; b=%d; k1=%d; k2=%d; cap=0x%.2x; mask=0x%.4x)\n",
-+ cursor->number, cursor->stype, cursor->format, cursor->m,
-+ cursor->b, cursor->k & 0xf, cursor->k >> 4,
-+ cursor->capab, cursor->thresh_mask);
-+
-+ if (cursor->id_length > 0) {
-+ ipmisensors_sprintf(id, cursor->id, cursor->string_type,
-+ cursor->id_length);
-+ switch (cursor->stype) {
-+ case (STYPE_TEMP):
-+ printk(KERN_INFO
-+ "ipmisensors: sensors.conf: label temp%d \"%s\"\n",
-+ temps, id);
-+ break;
-+ case (STYPE_VOLT):
-+ printk(KERN_INFO
-+ "ipmisensors: sensors.conf: label in%d \"%s\"\n",
-+ volts, id);
-+ break;
-+ case (STYPE_CURR):
-+ printk(KERN_INFO
-+ "ipmisensors: sensors.conf: label curr%d \"%s\"\n",
-+ currs, id);
-+ break;
-+ case (STYPE_FAN):
-+ printk(KERN_INFO
-+ "ipmisensors: sensors.conf: label fan%d \"%s\"\n",
-+ fans, id);
-+ break;
-+ }
-+ }
-+
-+ ipmisensors_select_thresholds(cursor);
-+
-+ if (cursor->linear != 0 && cursor->linear != 7) {
-+ printk(KERN_INFO
-+ "ipmisensors: sensor %d: nonlinear function 0x%.2x unsupported, expect bad results\n",
-+ cursor->number, cursor->linear);
-+ }
-+
-+ if ((cursor->format & 0x03) == 0x02) {
-+ printk(KERN_INFO
-+ "ipmisensors: sensor %d: 1's complement format unsupported, expect bad results\n",
-+ cursor->number);
-+ } else if ((cursor->format & 0x03) == 0x03) {
-+ printk(KERN_INFO
-+ "ipmisensors: sensor %d: threshold sensor only, no readings available",
-+ cursor->number);
-+ }
-+
-+ if (cursor->lim1_write || cursor->lim2_write)
-+ cursor->attr.dev_attr.attr.mode = 0644;
-+ else
-+ cursor->attr.dev_attr.attr.mode = 0444;
-+
-+ if (device_create_file(bmc->dev, &cursor->attr.dev_attr) < 0
-+ || device_create_file(bmc->dev,
-+ &cursor->attr_min.dev_attr) < 0
-+ || device_create_file(bmc->dev,
-+ &cursor->attr_max.dev_attr) < 0
-+ || (cursor->id_length >
-+ 0 ? device_create_file(bmc->dev,
-+ &cursor->attr_label.dev_attr) <
-+ 0 : 0)
-+ ) {
-+ printk(KERN_INFO
-+ "ipmisensors: sysfs file creation failed for SDR %d (%s).\n",
-+ cursor->number, cursor->id);
-+ kfree(cursor->attr_name);
-+ kfree(cursor->attr_max_name);
-+ kfree(cursor->attr_min_name);
-+ kfree(cursor->attr_label_name);
-+ return;
-+ }
-+ }
-+
-+ bmc->alarms_attr.dev_attr.attr.name = "alarms";
-+ bmc->alarms_attr.dev_attr.attr.mode = S_IRUGO;
-+ bmc->alarms_attr.dev_attr.attr.owner = THIS_MODULE;
-+ bmc->alarms_attr.dev_attr.show = show_alarms;
-+ bmc->alarms_attr.dev_attr.store = NULL;
-+ bmc->alarms_attr.bmc = bmc;
-+
-+ if (device_create_file(bmc->dev, &bmc->alarms_attr.dev_attr) < 0) {
-+ printk(KERN_INFO
-+ "ipmisensors: Failed to create sysfs entry 'alarms'");
-+ return;
-+ }
-+
-+ bmc->name_attr.attr.name = "name";
-+ bmc->name_attr.attr.mode = S_IRUGO;
-+ bmc->name_attr.attr.owner = THIS_MODULE;
-+ bmc->name_attr.show = show_name;
-+
-+ if (device_create_file(bmc->dev, &bmc->name_attr) < 0) {
-+ printk(KERN_INFO
-+ "ipmisensors: Failed to create sysfs entry 'name'");
-+ return;
-+ }
-+
-+ bmc->update_attr.dev_attr.attr.name = "update_period";
-+ bmc->update_attr.dev_attr.attr.mode = S_IWUSR | S_IRUGO;
-+ bmc->update_attr.dev_attr.attr.owner = THIS_MODULE;
-+ bmc->update_attr.dev_attr.show = show_update_period;
-+ bmc->update_attr.dev_attr.store = store_update_period;
-+ bmc->update_attr.bmc = bmc;
-+
-+ if (device_create_file(bmc->dev, &bmc->update_attr.dev_attr) < 0) {
-+ printk(KERN_INFO
-+ "ipmisensors: Failed to create sysfs entry 'update_period'");
-+ return;
-+ }
-+
-+ printk(KERN_INFO
-+ "ipmisensors: registered %d temp, %d volt, %d current, %d fan sensors\n",
-+ temps, volts, currs, fans);
-+
-+ /* This completes the initialization. We can now kickoff the
-+ * periodic update of the bmc sensor's values by scheduling
-+ * the first work.
-+ */
-+ queue_work(ipmisensors_workqueue, &bmc->update_work.work);
-+
-+}
-+
-+/**
-+ * Process an SDR response message, save the SDRs we like in the sdr
-+ * list for the given BMC.
-+ *
-+ * @bmc: the bmc the message is from
-+ * @msg: the IPMI SDR response message
-+ */
-+static void ipmisensors_rcv_sdr_msg(struct ipmisensors_bmc_data *bmc,
-+ struct kernel_ipmi_msg *msg)
-+{
-+ u16 record;
-+ int type;
-+ int stype;
-+ int id_length;
-+ int i;
-+ int ipmi_ver = 0;
-+ unsigned char *data;
-+ u8 id[SDR_MAX_UNPACKED_ID_LENGTH];
-+ struct sdrdata *sdr;
-+
-+ if (msg->data[0] != 0) {
-+ /* cut request in half and try again */
-+ bmc->ipmi_sdr_partial_size /= 2;
-+ if (bmc->ipmi_sdr_partial_size < 8) {
-+ printk(KERN_INFO
-+ "ipmisensors: IPMI buffers too small, giving up\n");
-+ bmc->state = STATE_DONE;
-+ return;
-+ }
-+ printk(KERN_DEBUG
-+ "ipmisensors: Reducing SDR request size to %d\n",
-+ bmc->ipmi_sdr_partial_size);
-+
-+ ipmisensors_get_sdr(bmc, 0, 0, 0);
-+ bmc->state = STATE_SDR;
-+ return;
-+ }
-+ if (bmc->ipmi_sdr_partial_size < IPMI_SDR_SIZE) {
-+ if (bmc->rx_msg_data_offset == 0) {
-+ memcpy(bmc->rx_msg_data, msg->data,
-+ bmc->ipmi_sdr_partial_size + 3);
-+ bmc->rx_msg_data_offset =
-+ bmc->ipmi_sdr_partial_size + 3;
-+ } else {
-+ memcpy(bmc->rx_msg_data + bmc->rx_msg_data_offset,
-+ msg->data + 3, bmc->ipmi_sdr_partial_size);
-+ bmc->rx_msg_data_offset += bmc->ipmi_sdr_partial_size;
-+ }
-+ if (bmc->rx_msg_data_offset > bmc->rx_msg_data[7] + 7) {
-+ /* got last chunk */
-+ bmc->rx_msg_data_offset = 0;
-+ data = bmc->rx_msg_data;
-+ } else {
-+ /* get more */
-+ record =
-+ (bmc->rx_msg_data[4] << 8) | bmc->rx_msg_data[3];
-+ ipmisensors_get_sdr(bmc, bmc->resid, record,
-+ bmc->rx_msg_data_offset - 3);
-+ bmc->state = STATE_SDR;
-+ return;
-+ }
-+ } else {
-+ /* got it in one chunk */
-+ data = msg->data;
-+ }
-+
-+ bmc->nextrecord = (data[2] << 8) | data[1];
-+
-+ /* If the ipmi version is 0.9 we have to remap some things.
-+ * Yes this is very ugly, but we aren't the ones who
-+ * implemented an incomplete spec!
-+ */
-+ ipmi_ver = data[5];
-+
-+ type = data[6];
-+ /* known SDR type */
-+ if (type == 1 || type == 2) {
-+ stype = data[(ipmi_ver == 0x90 ? 16 : 15)];
-+ /* known sensor type */
-+ if (stype <= STYPE_MAX) {
-+ if (data[(ipmi_ver == 0x90 ? 17 : 16)] != 0x01) {
-+ if (type == 1)
-+ ipmisensors_sprintf(id, &data[51],
-+ data[50] >> 6,
-+ data[50] & 0x1f);
-+ else
-+ ipmisensors_sprintf(id,
-+ &data[(ipmi_ver ==
-+ 0x90 ? 30 :
-+ 35)],
-+ data[(ipmi_ver ==
-+ 0x90 ? 29 :
-+ 34)] >> 6,
-+ data[(ipmi_ver ==
-+ 0x90 ? 29 :
-+ 34)] & 0x1f);
-+ printk(KERN_INFO
-+ "ipmisensors: skipping non-threshold sensor \"%s\"\n",
-+ id);
-+ } else {
-+ /* add entry to sdrd table */
-+ sdr = ipmisensors_new_sdr();
-+ if (!sdr) {
-+ printk(KERN_ERR
-+ "ipmisensors: could not allocate memory for new SDR");
-+ return;
-+ }
-+ sdr->bmc = bmc;
-+ sdr->stype = stype;
-+ sdr->number = data[10];
-+ sdr->capab = data[(ipmi_ver == 0x90 ? 15 : 14)];
-+ sdr->thresh_mask =
-+ (((u16) data[(ipmi_ver == 0x90 ? 21 : 22)])
-+ << 8) | data[21];
-+ if (type == 1) {
-+ sdr->format =
-+ data[(ipmi_ver ==
-+ 0x90 ? 22 : 24)] >> 6;
-+ sdr->linear =
-+ data[(ipmi_ver ==
-+ 0x90 ? 25 : 26)] & 0x7f;
-+ sdr->m =
-+ data[(ipmi_ver == 0x90 ? 26 : 27)];
-+ sdr->m |= ((u16)
-+ (data
-+ [(ipmi_ver ==
-+ 0x90 ? 27 : 28)]
-+ & 0xc0)) << 2;
-+ if (sdr->m & 0x0200) {
-+ /* sign extend */
-+ sdr->m |= 0xfc00;
-+ }
-+ sdr->b =
-+ data[(ipmi_ver == 0x90 ? 28 : 29)];
-+ sdr->b |= ((u16)
-+ (data
-+ [(ipmi_ver ==
-+ 0x90 ? 29 : 30)]
-+ & 0xc0)) << 2;
-+ if (sdr->b & 0x0200) {
-+ /* sign extend */
-+ sdr->b |= 0xfc00;
-+ }
-+ sdr->k =
-+ data[(ipmi_ver == 0x90 ? 31 : 32)];
-+ sdr->nominal =
-+ data[(ipmi_ver == 0x90 ? 33 : 34)];
-+ for (i = 0; i < SDR_LIMITS; i++) {
-+ /* assume readable */
-+ sdr->limits[i] =
-+ data[(ipmi_ver ==
-+ 0x90 ? 40 : 39) + i];
-+ }
-+ sdr->string_type = data[50] >> 6;
-+ id_length = data[50] & 0x1f;
-+ memcpy(sdr->id, &data[51], id_length);
-+ sdr->id_length = id_length;
-+ } else {
-+ sdr->m = 1;
-+ sdr->b = 0;
-+ sdr->k = 0;
-+ sdr->string_type =
-+ data[(ipmi_ver ==
-+ 0x90 ? 29 : 34)] >> 6;
-+ id_length = data[34] & 0x1f;
-+ if (id_length > 0) {
-+ memcpy(sdr->id,
-+ &data[(ipmi_ver ==
-+ 0x90 ? 30 : 35)],
-+ id_length);
-+ }
-+ sdr->id_length = id_length;
-+ /* limits?? */
-+ if (ipmi_ver == 0x90) {
-+ memcpy(sdr->id,
-+ &data[30], id_length);
-+ sdr->id_length = id_length;
-+ }
-+ }
-+ ipmisensors_add_sdr(bmc, sdr);
-+ }
-+ }
-+ /* peek at the other SDR types */
-+ } else if (type == 0x10 || type == 0x11 || type == 0x12) {
-+ ipmisensors_sprintf(id, data + 19, data[18] >> 6,
-+ data[18] & 0x1f);
-+ if (type == 0x10) {
-+ printk(KERN_INFO
-+ "ipmisensors: Generic Device acc=0x%x; slv=0x%x; lun=0x%x; type=0x%x; \"%s\"\n",
-+ data[8], data[9], data[10], data[13], id);
-+ } else if (type == 0x11) {
-+ printk(KERN_INFO
-+ "ipmisensors: FRU Device acc=0x%x; slv=0x%x; log=0x%x; ch=0x%x; type=0x%x; \"%s\"\n",
-+ data[8], data[9], data[10], data[11], data[13],
-+ id);
-+ } else {
-+ printk(KERN_INFO
-+ "ipmisensors: Mgmt Ctllr Device slv=0x%x; \"%s\"\n",
-+ data[8], id);
-+ }
-+ } else if (type == 0x14) {
-+ printk(KERN_INFO
-+ "ipmisensors: Message Channel Info Records:\n");
-+ for (i = 0; i < 8; i++) {
-+ printk(KERN_INFO "ipmisensors: Channel %d info 0x%x\n",
-+ i, data[9 + i]);
-+ }
-+ } else {
-+ printk(KERN_INFO "ipmisensors: Skipping SDR type 0x%x\n", type);
-+ }
-+ if (ipmi_ver != 0x90) {
-+ if (bmc->nextrecord >= 6224) {
-+ /*YJ stop sensor scan on poweredge 1750 */
-+ bmc->nextrecord = 0xffff;
-+ }
-+ }
-+
-+ if (bmc->nextrecord == 0xFFFF) {
-+ if (bmc->sdr_count == 0) {
-+ printk(KERN_INFO
-+ "ipmisensors: No recognized sensors found.\n");
-+ bmc->state = STATE_DONE;
-+ } else {
-+ printk(KERN_INFO "ipmisensors: all sensors detected\n");
-+ bmc->state = STATE_SYSTABLE;
-+
-+ /* Schedule sysfs build/registration work */
-+ INIT_WORK(&bmc->sysfs_work, ipmisensors_build_sysfs);
-+ queue_work(ipmisensors_workqueue, &bmc->sysfs_work);
-+ }
-+ } else {
-+ ipmisensors_get_sdr(bmc, 0, bmc->nextrecord, 0);
-+ bmc->state = STATE_SDR;
-+ }
-+}
-+
-+/**
-+ * Process incoming messages based on internal state
-+ *
-+ * @bmc: the bmc the message is from.
-+ * @msg: the ipmi message to process.
-+ */
-+static void ipmisensors_rcv_msg(struct ipmisensors_bmc_data *bmc,
-+ struct kernel_ipmi_msg *msg)
-+{
-+ switch (bmc->state) {
-+ case STATE_INIT:
-+ case STATE_RESERVE:
-+ bmc->resid = (((u16) msg->data[2]) << 8) | msg->data[1];
-+
-+ printk(KERN_DEBUG "ipmisensors: Got first resid 0x%.4x\n",
-+ bmc->resid);
-+
-+ ipmisensors_get_sdr(bmc, 0, 0, 0);
-+ bmc->state = STATE_SDR;
-+ break;
-+
-+ case STATE_SDR:
-+ case STATE_SDRPARTIAL:
-+ ipmisensors_rcv_sdr_msg(bmc, msg);
-+ break;
-+
-+ case STATE_READING:
-+ ipmisensors_rcv_reading_msg(bmc, msg);
-+ break;
-+
-+ case STATE_UNCANCEL:
-+ bmc->resid = (((u16) msg->data[2]) << 8) | msg->data[1];
-+
-+ printk(KERN_DEBUG "ipmisensors: Got new resid 0x%.4x\n",
-+ bmc->resid);
-+
-+ bmc->rx_msg_data_offset = 0;
-+ ipmisensors_get_sdr(bmc, 0, bmc->nextrecord, 0);
-+ bmc->state = STATE_SDR;
-+ break;
-+
-+ case STATE_DONE:
-+ case STATE_SYSTABLE:
-+ break;
-+ default:
-+ bmc->state = STATE_INIT;
-+ }
-+}
-+
-+/**
-+ * Callback to handle a received IPMI message from a given BMC.
-+ *
-+ * @msg: the received message.
-+ * @handler_data: a pointer to the particular bmc ipmisensors_bmc_data struct.
-+ */
-+static void ipmisensors_msg_handler(struct ipmi_recv_msg *msg,
-+ void *user_msg_data)
-+{
-+ struct ipmisensors_bmc_data *bmc =
-+ (struct ipmisensors_bmc_data *)user_msg_data;
-+
-+ if (msg->msg.data[0] != 0)
-+ printk(KERN_WARNING
-+ "ipmisensors: Error 0x%x on cmd 0x%x/0x%x\n",
-+ msg->msg.data[0], msg->msg.netfn, msg->msg.cmd);
-+
-+ if (bmc != NULL && ipmisensors_intf_registered(bmc->interface_id)) {
-+ if (bmc->state == STATE_SDR &&
-+ msg->msg.data[0] == IPMI_INVALID_RESERVATION_ID) {
-+ /* reservation cancelled, get new resid */
-+ if (++bmc->errorcount > 275) {
-+ printk(KERN_ERR
-+ "ipmisensors: Too many reservations cancelled, giving up\n");
-+ bmc->state = STATE_DONE;
-+ } else {
-+ printk(KERN_DEBUG
-+ "ipmisensors: resid 0x%04x cancelled, getting new one\n",
-+ bmc->resid);
-+
-+ ipmisensors_reserve_sdr(bmc);
-+ bmc->state = STATE_UNCANCEL;
-+ }
-+ } else if (msg->msg.data[0] != IPMI_CC_NO_ERROR &&
-+ msg->msg.data[0] != IPMI_ERR_RETURNING_REQ_BYTES &&
-+ msg->msg.data[0] != IPMI_ERR_PROVIDING_RESPONSE) {
-+ printk(KERN_ERR
-+ "ipmisensors: Error 0x%x on cmd 0x%x/0x%x; state = %d; probably fatal.\n",
-+ msg->msg.data[0], msg->msg.netfn & 0xfe,
-+ msg->msg.cmd, bmc->state);
-+ } else {
-+ printk(KERN_DEBUG "ipmisensors: received message\n");
-+ ipmisensors_rcv_msg(bmc, &msg->msg);
-+ }
-+
-+ } else {
-+ printk(KERN_WARNING
-+ "ipmisensors: Response for non-registered BMC\n");
-+ if (bmc != NULL)
-+ printk(KERN_DEBUG "ipmisensors: BMC ID: %d\n",
-+ bmc->interface_id);
-+ else
-+ printk(KERN_DEBUG "ipmisensors: BMC NULL!\n");
-+ }
-+
-+ ipmi_free_recv_msg(msg);
-+}
-+
-+/****** IPMI Interface Initialization ******/
-+
-+/**
-+ * Return true if the given ipmi interface has been registered.
-+ *
-+ * @ipmi_intf: The IPMI interface number.
-+ */
-+static int ipmisensors_intf_registered(int ipmi_intf)
-+{
-+ int found = 0;
-+ struct ipmisensors_bmc_data *cursor, *next;
-+
-+ /* find and free the ipmisensors_bmc_data struct */
-+ list_for_each_entry_safe(cursor, next, &driver_data.bmc_data, list) {
-+ if (cursor->interface_id == ipmi_intf) {
-+ found++;
-+ }
-+ }
-+
-+ return found;
-+}
-+
-+/**
-+ * Return true if the given BMC has been registered.
-+ *
-+ * @bmc: The BMC device.
-+ */
-+static int ipmisensors_bmc_registered(struct device *bmc)
-+{
-+ int found = 0;
-+ struct ipmisensors_bmc_data *cursor, *next;
-+
-+ /* find and free the ipmisensors_bmc_data struct */
-+ list_for_each_entry_safe(cursor, next, &driver_data.bmc_data, list) {
-+ if (cursor->dev == bmc) {
-+ found++;
-+ }
-+ }
-+
-+ return found;
-+}
-+
-+/**
-+ * Register new IPMI BMC interface. Interface indpendent callback created
-+ * for flexibility in adding new types of interface callbacks in future.
-+ *
-+ * @ipmi_intf: The IPMI interface number.
-+ */
-+static void ipmisensors_register_bmc(int ipmi_intf, struct ipmi_addr *address)
-+{
-+ int error;
-+
-+ /* allocate a new ipmisensors_bmc_data struct */
-+
-+ struct ipmisensors_bmc_data *bmc = (struct ipmisensors_bmc_data *)
-+ kmalloc(sizeof(struct ipmisensors_bmc_data), GFP_KERNEL);
-+
-+ /* initialize members */
-+ INIT_LIST_HEAD(&bmc->sdrs);
-+ bmc->interface_id = ipmi_intf;
-+
-+ bmc->address = *address;
-+
-+ bmc->sdr_count = 0;
-+ bmc->msgid = 0;
-+ bmc->ipmi_sdr_partial_size = IPMI_CHUNK_SIZE;
-+ bmc->state = STATE_INIT;
-+ bmc->errorcount = 0;
-+ bmc->rx_msg_data_offset = 0;
-+ bmc->dev = ipmi_get_bmcdevice(ipmi_intf);
-+
-+ /* default to 3 second min update interval */
-+ bmc->update_period = 3;
-+
-+ if (bmc->dev == NULL) {
-+ printk(KERN_ERR
-+ "ipmisensors: Error, couldn't get BMC device for interface %d\n",
-+ bmc->interface_id);
-+ kfree(bmc);
-+ return;
-+ }
-+
-+ /* Create IPMI messaging interface user */
-+ error = ipmi_create_user(bmc->interface_id, &driver_data.ipmi_hndlrs,
-+ bmc, &bmc->user);
-+ if (error < 0) {
-+ printk(KERN_ERR
-+ "ipmisensors: Error, unable to register user with ipmi interface %d\n",
-+ bmc->interface_id);
-+ kfree(bmc);
-+ return;
-+ }
-+
-+ /* Register the BMC as a HWMON class device */
-+ bmc->class_dev = hwmon_device_register(bmc->dev);
-+
-+ if (IS_ERR(bmc->class_dev)) {
-+ printk(KERN_ERR
-+ "ipmisensors: Error, unable to register hwmon class device for interface %d\n",
-+ bmc->interface_id);
-+ kfree(bmc);
-+ return;
-+ }
-+
-+ /* Register the BMC in the driver */
-+ if (ipmisensors_bmc_registered(bmc->dev)) {
-+ printk(KERN_ERR
-+ "ipmisensors: BMC on interface %d already registered\n",
-+ bmc->interface_id);
-+ hwmon_device_unregister(bmc->class_dev);
-+ kfree(bmc);
-+ return;
-+ }
-+
-+ ipmi_get_version(bmc->user, &bmc->ipmi_version_major,
-+ &bmc->ipmi_version_minor);
-+
-+ /* finally add the new bmc data to the bmc data list */
-+ list_add_tail(&bmc->list, &driver_data.bmc_data);
-+ driver_data.interfaces++;
-+
-+ printk(KERN_INFO
-+ "ipmisensors: Registered IPMI %d.%d BMC over interface %d\n",
-+ bmc->ipmi_version_major,
-+ bmc->ipmi_version_minor, bmc->interface_id);
-+
-+ /* Send a reserve SDR command to the bmc */
-+ ipmisensors_reserve_sdr(bmc);
-+
-+ /* initialize the bmc's update work struct */
-+ INIT_DELAYED_WORK(&bmc->update_work, ipmisensors_update_bmc);
-+}
-+
-+/**
-+ * Callback for when an IPMI BMC is gone. Interface indpendent callback created
-+ * for flexibility in adding new types of interface callbacks in future.
-+ *
-+ * @ipmi_intf: The IPMI interface number.
-+ */
-+static void ipmisensors_unregister_bmc(int ipmi_intf)
-+{
-+ struct ipmisensors_bmc_data *cursor, *next;
-+
-+ /* find and free the ipmisensors_bmc_data struct */
-+ list_for_each_entry_safe(cursor, next, &driver_data.bmc_data, list) {
-+ if (cursor->interface_id == ipmi_intf) {
-+ list_del(&cursor->list);
-+ printk(KERN_DEBUG
-+ "ipmisensors: cancelling queued work\n");
-+ /* cancel update work queued for this bmc */
-+ cancel_delayed_work(&cursor->update_work);
-+ printk(KERN_DEBUG
-+ "ipmisensors: waiting for update to finish\n");
-+ /* wait for readings to finish */
-+ while (cursor->state != STATE_DONE) ;
-+
-+ device_remove_file(cursor->dev,
-+ &cursor->alarms_attr.dev_attr);
-+ device_remove_file(cursor->dev,
-+ &cursor->update_attr.dev_attr);
-+ hwmon_device_unregister(cursor->class_dev);
-+ ipmisensors_sdr_cleanup(cursor);
-+ ipmi_destroy_user(cursor->user);
-+
-+ printk(KERN_INFO
-+ "ipmisensors: Unegistered IPMI interface %d\n",
-+ cursor->interface_id);
-+
-+ kfree(cursor);
-+ driver_data.interfaces--;
-+ }
-+ }
-+
-+}
-+
-+/**
-+ * Unregister all registered bmcs.
-+ */
-+static void ipmisensors_unregister_bmc_all(void)
-+{
-+ struct ipmisensors_bmc_data *cursor, *next;
-+
-+ /* find and free the ipmisensors_bmc_data struct */
-+ list_for_each_entry_safe(cursor, next, &driver_data.bmc_data, list) {
-+ list_del(&cursor->list);
-+
-+ /* cancel update work queued for this bmc */
-+ printk(KERN_DEBUG "ipmisensors: cancelling queued work\n");
-+ cancel_delayed_work(&cursor->update_work);
-+
-+ printk(KERN_DEBUG
-+ "ipmisensors: waiting for update to finish\n");
-+ /* wait for readings to finish */
-+ while (cursor->state != STATE_DONE) ;
-+
-+ device_remove_file(cursor->dev, &cursor->alarms_attr.dev_attr);
-+ device_remove_file(cursor->dev, &cursor->update_attr.dev_attr);
-+ hwmon_device_unregister(cursor->class_dev);
-+ ipmisensors_sdr_cleanup(cursor);
-+ ipmi_destroy_user(cursor->user);
-+
-+ printk(KERN_INFO
-+ "ipmisensors: Unegistered IPMI interface %d\n",
-+ cursor->interface_id);
-+
-+ kfree(cursor);
-+ }
-+
-+ driver_data.interfaces = 0;
-+}
-+
-+/**
-+ * Callback for when a new IPMI SMI type interface is found.
-+ *
-+ * @if_num: The IPMI interface number.
-+ */
-+static void ipmisensors_new_smi(int if_num, struct device *dev)
-+{
-+ struct ipmi_addr smi_address = {
-+ IPMI_SYSTEM_INTERFACE_ADDR_TYPE,
-+ IPMI_BMC_CHANNEL,
-+ {0},
-+ };
-+
-+ /* calls the generic new interface function */
-+ ipmisensors_register_bmc(if_num, &smi_address);
-+}
-+
-+/**
-+ * Callback for when an exisiting IPMI SMI type interface is gone.
-+ *
-+ * @if_num: The IPMI interface number.
-+ */
-+static void ipmisensors_smi_gone(int if_num)
-+{
-+ if (driver_data.interfaces > 0) {
-+ ipmisensors_unregister_bmc(if_num);
-+ }
-+}
-+
-+/**
-+ * Initialize the module.
-+ */
-+static int __init ipmisensors_init(void)
-+{
-+ int error;
-+ printk(KERN_INFO "ipmisensors - IPMI BMC sensors interface\n");
-+
-+ /* init cache managers */
-+ driver_data.sdrdata_cache =
-+ kmem_cache_create("ipmisensors_sdrdata", sizeof(struct sdrdata), 0,
-+ 0, NULL, NULL);
-+ driver_data.sysfsattr_cache =
-+ kmem_cache_create("ipmisensors_sysfsattr",
-+ sizeof(struct ipmisensors_device_attribute), 0, 0,
-+ NULL, NULL);
-+
-+ if (!driver_data.sdrdata_cache || !driver_data.sysfsattr_cache) {
-+ if (driver_data.sdrdata_cache)
-+ kmem_cache_destroy(driver_data.sdrdata_cache);
-+ if (driver_data.sysfsattr_cache)
-+ kmem_cache_destroy(driver_data.sysfsattr_cache);
-+ return -ENOMEM;
-+ }
-+
-+ /* register IPMI interface callback(s) */
-+ error = ipmi_smi_watcher_register(&driver_data.smi_watcher);
-+ if (error) {
-+ printk(KERN_WARNING
-+ "ipmisensors: can't register smi watcher\n");
-+ return error;
-+ }
-+
-+ /* create work queue, keep it simple, single-threaded */
-+ ipmisensors_workqueue =
-+ create_singlethread_workqueue("ipmisensors_workqueue");
-+
-+ return 0;
-+}
-+
-+/**
-+ * Cleanup
-+ */
-+static void ipmisensors_cleanup(void)
-+{
-+ /* start cleanup */
-+ cleanup = 1;
-+
-+ /* unregister bmcs */
-+ printk(KERN_DEBUG "ipmisensors: unregister bmcs\n");
-+ ipmi_smi_watcher_unregister(&driver_data.smi_watcher);
-+ ipmisensors_unregister_bmc_all();
-+
-+ /* flush & destroy work queue */
-+ printk(KERN_DEBUG "ipmisensors: destroy workqueue\n");
-+ flush_workqueue(ipmisensors_workqueue);
-+ destroy_workqueue(ipmisensors_workqueue);
-+
-+ /* remove cache managers */
-+ if (driver_data.sdrdata_cache)
-+ kmem_cache_destroy(driver_data.sdrdata_cache);
-+ if (driver_data.sysfsattr_cache)
-+ kmem_cache_destroy(driver_data.sysfsattr_cache);
-+}
-+
-+/**
-+ * Cleanup and exit the module
-+ */
-+static void __exit ipmisensors_exit(void)
-+{
-+ ipmisensors_cleanup();
-+ printk(KERN_DEBUG "ipmisensors: cleanup finished\n");
-+}
-+
-+MODULE_AUTHOR("Yani Ioannou <yani.ioannou@gmail.com>");
-+MODULE_DESCRIPTION("IPMI BMC sensors");
-+MODULE_LICENSE("GPL");
-+
-+module_init(ipmisensors_init);
-+module_exit(ipmisensors_exit);
-diff -rduNp linux-2.6.20.3.orig/drivers/hwmon/ipmisensors.h linux-2.6.20.3/drivers/hwmon/ipmisensors.h
---- linux-2.6.20.3.orig/drivers/hwmon/ipmisensors.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.20.3/drivers/hwmon/ipmisensors.h 2007-03-14 14:41:23.000000000 +0100
-@@ -0,0 +1,240 @@
-+/*
-+ * ipmisensors.h - lm_sensors interface to IPMI sensors.
-+ *
-+ * Copyright (C) 2004-2006 Yani Ioannou <yani.ioannou@gmail.com>
-+ *
-+ * Adapted from bmcsensors (lm-sensors for linux 2.4)
-+ * bmcsensors (C) Mark D. Studebaker <mdsxyz123@yahoo.com>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License as published by
-+ * the Free Software Foundation; either version 2 of the License, or
-+ * (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-+ */
-+
-+#include <linux/ipmi.h>
-+#include <linux/list.h>
-+#include <linux/slab.h>
-+#include <linux/workqueue.h>
-+
-+/* SDR defs */
-+#define STYPE_TEMP 0x01
-+#define STYPE_VOLT 0x02
-+#define STYPE_CURR 0x03
-+#define STYPE_FAN 0x04
-+
-+#define SDR_LIMITS 8
-+#define SDR_MAX_ID_LENGTH 16
-+#define SDR_MAX_UNPACKED_ID_LENGTH ((SDR_MAX_ID_LENGTH * 4 / 3) + 2)
-+
-+/* the last sensor type we are interested in */
-+#define STYPE_MAX 4
-+
-+#define IPMI_SDR_SIZE 67
-+#define IPMI_CHUNK_SIZE 16
-+
-+#define MAX_FILENAME_LENGTH 30
-+
-+struct ipmisensors_device_attribute {
-+ struct device_attribute dev_attr;
-+ struct sdrdata *sdr;
-+};
-+#define to_ipmisensors_dev_attr(_dev_attr) \
-+ container_of(_dev_attr, struct ipmisensors_device_attribute, dev_attr)
-+
-+#define IPMISENSORS_DEVICE_ATTR(_name,_mode,_show,_store,_index) \
-+struct ipmisensors_attribute sensor_dev_attr_##_name = { \
-+ .dev_attr = __ATTR(_name,_mode,_show,_store), \
-+ .index = _index, \
-+}
-+
-+struct ipmisensors_bmc_device_attribute {
-+ struct device_attribute dev_attr;
-+ struct ipmisensors_bmc_data *bmc;
-+};
-+#define to_ipmisensors_bmc_dev_attr(_dev_attr) \
-+ container_of(_dev_attr, struct ipmisensors_bmc_device_attribute, dev_attr)
-+
-+/**
-+ * &struct_sdrdata stores the IPMI Sensor Data Record (SDR) data, as recieved from the BMC, along with the corresponding sysfs attributes
-+ */
-+struct sdrdata {
-+ struct list_head list;
-+ /* retrieved from SDR, not expected to change */
-+ /* Sensor Type Code */
-+ u8 stype;
-+ u8 number;
-+ /* Sensor Capability Code */
-+ u8 capab;
-+ u16 thresh_mask;
-+ u8 format;
-+ u8 linear;
-+ s16 m;
-+ s16 b;
-+ u8 k;
-+ u8 nominal;
-+ u8 limits[SDR_LIMITS];
-+ /* index into limits for reported upper and lower limit */
-+ int lim1, lim2;
-+ u8 lim1_write, lim2_write;
-+ u8 string_type;
-+ u8 id_length;
-+ u8 id[SDR_MAX_ID_LENGTH];
-+ /* retrieved from reading */
-+ u8 reading;
-+ u8 status;
-+ u8 thresholds;
-+ /* sensor's bmc */
-+ struct ipmisensors_bmc_data *bmc;
-+ /* sysfs entries */
-+ struct ipmisensors_device_attribute attr;
-+ char *attr_name;
-+ struct ipmisensors_device_attribute attr_min;
-+ char *attr_min_name;
-+ struct ipmisensors_device_attribute attr_max;
-+ char *attr_max_name;
-+ struct ipmisensors_device_attribute attr_label;
-+ char *attr_label_name;
-+
-+};
-+
-+/**
-+ * &struct_ipmisensors_data stores the data for the ipmisensors driver.
-+ */
-+struct ipmisensors_data {
-+ /* Driver struct */
-+ char *driver_name;
-+
-+ /* Linked list of ipmisensors_bmc_data structs, one for each BMC */
-+ struct list_head bmc_data;
-+
-+ /* Number of ipmi interfaces (and hence ipmisensors_data structs). */
-+ int interfaces;
-+
-+ /* IPMI kernel interface - SMI watcher */
-+ struct ipmi_smi_watcher smi_watcher;
-+
-+ /* IPMI kernel interface - user handlers */
-+ struct ipmi_user_hndl ipmi_hndlrs;
-+
-+ /* Cache manager for sdrdata cache */
-+ struct kmem_cache *sdrdata_cache;
-+
-+ /* Cache manager for ipmi_sensor_device_attribute cache */
-+ struct kmem_cache *sysfsattr_cache;
-+};
-+
-+/**
-+ * &states: enumeration of state codes for a bmc specific ipmisensors
-+ */
-+enum states {
-+ STATE_INIT,
-+ STATE_RESERVE,
-+ STATE_SDR,
-+ STATE_SDRPARTIAL,
-+ STATE_READING,
-+ STATE_UNCANCEL,
-+ STATE_SYSTABLE,
-+ STATE_DONE
-+};
-+
-+/**
-+ * &struct_ipmisensors_bmc_data stores the data for a particular IPMI BMC.
-+ */
-+struct ipmisensors_bmc_data {
-+ struct list_head list;
-+
-+ /* The IPMI interface number */
-+ int interface_id;
-+
-+ /* The IPMI address */
-+ struct ipmi_addr address;
-+
-+ /* List of sdrdata structs (sdrs) recieved from the BMC */
-+ struct list_head sdrs;
-+
-+ /* Count of the number of sdrs stored in the sdr list */
-+ int sdr_count;
-+
-+ /* next message id */
-+ int msgid;
-+
-+ /* The ipmi interface 'user' used to access this particular bmc */
-+ ipmi_user_t user;
-+
-+ /* BMC IPMI Version (major) */
-+ unsigned char ipmi_version_major;
-+
-+ /* BMC IPMI Version (minor) */
-+ unsigned char ipmi_version_minor;
-+
-+ /* The size of the SDR request message */
-+ int ipmi_sdr_partial_size;
-+
-+ /* transmit message buffer */
-+ struct kernel_ipmi_msg tx_message;
-+
-+ /* ipmi transmited data buffer */
-+ unsigned char tx_msg_data[IPMI_MAX_MSG_LENGTH + 50]; /* why the +50 in bmcsensors? */
-+
-+ /* ipmi recieved data buffer */
-+ unsigned char rx_msg_data[IPMI_MAX_MSG_LENGTH + 50];
-+
-+ /* current recieve buffer offset */
-+ int rx_msg_data_offset;
-+
-+ /* The id of then next SDR record to read during update cycle */
-+ u16 nextrecord;
-+
-+ /* BMC SDR Reservation ID */
-+ u16 resid;
-+
-+ /* Alarm status */
-+ u8 alarms;
-+
-+ /* The cumalative error count for this bmc */
-+ int errorcount;
-+
-+ /* The current state of this bmc w.r.t. ipmisensors (see enum states) */
-+ int state;
-+
-+ /* The current sdr for which a reading is pending */
-+ struct sdrdata *current_sdr;
-+
-+ /* The BMC's device struct */
-+ struct device *dev;
-+
-+ /* hwmon class device */
-+ struct class_device *class_dev;
-+
-+ /* hwmon device name */
-+ struct device_attribute name_attr;
-+
-+ /* alarms attribute */
-+ struct ipmisensors_bmc_device_attribute alarms_attr;
-+
-+ /* update_period attribute */
-+ struct ipmisensors_bmc_device_attribute update_attr;
-+
-+ /* lower bound on time between updates (in seconds) */
-+ unsigned int update_period;
-+
-+ /* semaphore used to do a headcount of the SDR readings we are waiting
-+ * on in a given bmc update */
-+ struct semaphore update_semaphore;
-+
-+ /* bmc's work struct for updating sensors */
-+ struct delayed_work update_work;
-+
-+ /* bmc's work struct for building the sysfs workqueue */
-+ struct work_struct sysfs_work;
-+};
-diff -rduNp linux-2.6.20.3.orig/include/linux/ipmi.h linux-2.6.20.3/include/linux/ipmi.h
---- linux-2.6.20.3.orig/include/linux/ipmi.h 2007-03-13 19:27:08.000000000 +0100
-+++ linux-2.6.20.3/include/linux/ipmi.h 2007-03-14 14:23:02.000000000 +0100
-@@ -300,6 +300,9 @@ int ipmi_create_user(unsigned int
- safe, too. */
- int ipmi_destroy_user(ipmi_user_t user);
-
-+/* Get the IPMI BMC's device struct */
-+struct device *ipmi_get_bmcdevice(int ipmi_intf);
-+
- /* Get the IPMI version of the BMC we are talking to. */
- void ipmi_get_version(ipmi_user_t user,
- unsigned char *major,
-diff -rduNp linux-2.6.20.3.orig/include/linux/ipmi_msgdefs.h linux-2.6.20.3/include/linux/ipmi_msgdefs.h
---- linux-2.6.20.3.orig/include/linux/ipmi_msgdefs.h 2007-03-13 19:27:08.000000000 +0100
-+++ linux-2.6.20.3/include/linux/ipmi_msgdefs.h 2007-03-14 14:23:02.000000000 +0100
-@@ -45,6 +45,7 @@
-
- #define IPMI_NETFN_APP_REQUEST 0x06
- #define IPMI_NETFN_APP_RESPONSE 0x07
-+#define IPMI_GET_DEVICE_GUID_CMD 0x08
- #define IPMI_GET_DEVICE_ID_CMD 0x01
- #define IPMI_COLD_RESET_CMD 0x02
- #define IPMI_WARM_RESET_CMD 0x03
-@@ -57,6 +58,11 @@
- #define IPMI_GET_BMC_GLOBAL_ENABLES_CMD 0x2f
- #define IPMI_READ_EVENT_MSG_BUFFER_CMD 0x35
- #define IPMI_GET_CHANNEL_INFO_CMD 0x42
-+#define IPMI_RESERVE_SDR 0x22
-+#define IPMI_GET_SDR 0x23
-+#define IPMI_GET_SENSOR_STATE_READING 0x2D
-+#define IPMI_SET_SENSOR_HYSTERESIS 0x24
-+#define IPMI_SET_SENSOR_THRESHOLD 0x26
-
- #define IPMI_NETFN_STORAGE_REQUEST 0x0a
- #define IPMI_NETFN_STORAGE_RESPONSE 0x0b
-@@ -79,10 +85,13 @@
- #define IPMI_NODE_BUSY_ERR 0xc0
- #define IPMI_INVALID_COMMAND_ERR 0xc1
- #define IPMI_TIMEOUT_ERR 0xc3
-+#define IPMI_INVALID_RESERVATION_ID 0xc5
- #define IPMI_ERR_MSG_TRUNCATED 0xc6
- #define IPMI_REQ_LEN_INVALID_ERR 0xc7
- #define IPMI_REQ_LEN_EXCEEDED_ERR 0xc8
- #define IPMI_NOT_IN_MY_STATE_ERR 0xd5 /* IPMI 2.0 */
-+#define IPMI_ERR_RETURNING_REQ_BYTES 0xca
-+#define IPMI_ERR_PROVIDING_RESPONSE 0xce
- #define IPMI_LOST_ARBITRATION_ERR 0x81
- #define IPMI_BUS_ERR 0x82
- #define IPMI_NAK_ON_WRITE_ERR 0x83
+++ /dev/null
-diff -rduNp linux-2.6.22.1.oorig2/drivers/char/ipmi/ipmi_msghandler.c linux-2.6.22.1/drivers/char/ipmi/ipmi_msghandler.c
---- linux-2.6.22.1.oorig2/drivers/char/ipmi/ipmi_msghandler.c 2007-07-10 20:56:30.000000000 +0200
-+++ linux-2.6.22.1/drivers/char/ipmi/ipmi_msghandler.c 2007-07-24 14:22:26.000000000 +0200
-@@ -1953,6 +1953,24 @@ static void remove_proc_entries(ipmi_smi
- #endif /* CONFIG_PROC_FS */
- }
-
-+/*
-+ * Retrieves the bmc_device struct for a given ipmi interface number (or NULL if none).
-+ */
-+struct device *ipmi_get_bmcdevice(int if_num)
-+{
-+ ipmi_smi_t intf;
-+ mutex_lock(&ipmi_interfaces_mutex);
-+ list_for_each_entry_rcu(intf, &ipmi_interfaces, link) {
-+ if (intf->intf_num == if_num){
-+ mutex_unlock(&ipmi_interfaces_mutex);
-+ return &intf->bmc->dev->dev;
-+ }
-+ }
-+ mutex_unlock(&ipmi_interfaces_mutex);
-+
-+ return NULL;
-+}
-+
- static int __find_bmc_guid(struct device *dev, void *data)
- {
- unsigned char *id = data;
-@@ -4196,3 +4214,4 @@ EXPORT_SYMBOL(ipmi_get_my_LUN);
- EXPORT_SYMBOL(ipmi_smi_add_proc_entry);
- EXPORT_SYMBOL(ipmi_user_set_run_to_completion);
- EXPORT_SYMBOL(ipmi_free_recv_msg);
-+EXPORT_SYMBOL(ipmi_get_bmcdevice);
-diff -rduNp linux-2.6.22.1.oorig2/drivers/hwmon/Kconfig linux-2.6.22.1/drivers/hwmon/Kconfig
---- linux-2.6.22.1.oorig2/drivers/hwmon/Kconfig 2007-07-10 20:56:30.000000000 +0200
-+++ linux-2.6.22.1/drivers/hwmon/Kconfig 2007-07-24 14:22:26.000000000 +0200
-@@ -248,6 +248,16 @@ config SENSORS_CORETEMP
- sensor inside your CPU. Supported all are all known variants
- of Intel Core family.
-
-+config SENSORS_IPMI
-+ tristate "IPMI Hardware Monitoring Support"
-+ depends on HWMON && IPMI_HANDLER && EXPERIMENTAL
-+ help
-+ If you say yes here you get support for sensors monitored by
-+ an IPMI baseboard management controller (BMC).
-+
-+ This driver can also be built as a module. If so, the module
-+ will be called ipmisensors.
-+
- config SENSORS_IT87
- tristate "ITE IT87xx and compatibles"
- depends on I2C
-diff -rduNp linux-2.6.22.1.oorig2/drivers/hwmon/Makefile linux-2.6.22.1/drivers/hwmon/Makefile
---- linux-2.6.22.1.oorig2/drivers/hwmon/Makefile 2007-07-10 20:56:30.000000000 +0200
-+++ linux-2.6.22.1/drivers/hwmon/Makefile 2007-07-24 14:22:26.000000000 +0200
-@@ -32,6 +32,7 @@ obj-$(CONFIG_SENSORS_FSCPOS) += fscpos.o
- obj-$(CONFIG_SENSORS_GL518SM) += gl518sm.o
- obj-$(CONFIG_SENSORS_GL520SM) += gl520sm.o
- obj-$(CONFIG_SENSORS_HDAPS) += hdaps.o
-+obj-$(CONFIG_SENSORS_IPMI) += ipmisensors.o
- obj-$(CONFIG_SENSORS_IT87) += it87.o
- obj-$(CONFIG_SENSORS_K8TEMP) += k8temp.o
- obj-$(CONFIG_SENSORS_LM63) += lm63.o
-diff -rduNp linux-2.6.22.1.oorig2/drivers/hwmon/ipmisensors.c linux-2.6.22.1/drivers/hwmon/ipmisensors.c
---- linux-2.6.22.1.oorig2/drivers/hwmon/ipmisensors.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.22.1/drivers/hwmon/ipmisensors.c 2007-07-24 14:22:26.000000000 +0200
-@@ -0,0 +1,1552 @@
-+/*
-+ * ipmisensors.c - lm-sensors/hwmon interface to IPMI sensors.
-+ *
-+ * Copyright (C) 2004-2006 Yani Ioannou <yani.ioannou@gmail.com>
-+ *
-+ * Adapted from bmcsensors (lm-sensors for linux 2.4)
-+ * bmcsensors (C) Mark D. Studebaker <mdsxyz123@yahoo.com>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License as published by
-+ * the Free Software Foundation; either version 2 of the License, or
-+ * (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-+ */
-+
-+#include <linux/init.h>
-+#include <linux/module.h>
-+#include <linux/param.h>
-+#include <linux/hwmon.h>
-+#include <linux/list.h>
-+#include <linux/slab.h>
-+#include <linux/device.h>
-+#include <linux/hwmon.h>
-+
-+#include "ipmisensors.h"
-+
-+/****** Function Prototypes ******/
-+static void ipmisensors_send_message(struct ipmisensors_bmc_data *bmc,
-+ long msgid, struct kernel_ipmi_msg *msg);
-+static void ipmisensors_reserve_sdr(struct ipmisensors_bmc_data *bmc);
-+static void ipmisensors_get_sdr(struct ipmisensors_bmc_data *bmc, u16 res_id,
-+ u16 record, u8 offset);
-+static void ipmisensors_set_sensor_threshold(struct ipmisensors_bmc_data *bmc,
-+ u8 number, int value,
-+ int lim_index);
-+static void ipmisensors_get_reading(struct ipmisensors_bmc_data *bmc,
-+ struct sdrdata *sdr);
-+static void ipmisensors_msg_handler(struct ipmi_recv_msg *msg,
-+ void *user_msg_data);
-+static int ipmisensors_intf_registered(int ipmi_intf);
-+static int ipmisensors_bmc_registered(struct device *bmc);
-+static void ipmisensors_register_bmc(int ipmi_intf, struct ipmi_addr *address);
-+static void ipmisensors_unregister_bmc(int ipmi_intf);
-+static void ipmisensors_unregister_bmc_all(void);
-+static void ipmisensors_new_smi(int if_num, struct device *dev);
-+static void ipmisensors_smi_gone(int if_num);
-+static void ipmisensors_update_bmc(struct work_struct *);
-+static void ipmisensors_cleanup(void);
-+
-+/****** Static Vars ******/
-+
-+/* set when module is being removed */
-+static int cleanup = 0;
-+
-+/* ipmisensors driver data */
-+static struct ipmisensors_data driver_data = {
-+ .driver_name = "bmc",
-+ .bmc_data = LIST_HEAD_INIT(driver_data.bmc_data),
-+ .interfaces = 0,
-+ .smi_watcher = {
-+ .owner = THIS_MODULE,
-+ .new_smi = ipmisensors_new_smi,
-+ .smi_gone = ipmisensors_smi_gone,
-+ },
-+ .ipmi_hndlrs = {
-+ .ipmi_recv_hndl = ipmisensors_msg_handler,
-+ },
-+};
-+
-+/* sensor refresh workqueue */
-+static struct workqueue_struct *ipmisensors_workqueue;
-+
-+/****** SDR List Functions ******/
-+/**
-+ * Creates a new sdrdata struct, or returns NULL if insufficient memory.
-+ */
-+static struct sdrdata *ipmisensors_new_sdr(void)
-+{
-+ struct sdrdata *sdr;
-+
-+ sdr = kmem_cache_alloc(driver_data.sdrdata_cache, GFP_ATOMIC);
-+ if (sdr) {
-+ memset(sdr, 0, sizeof(struct sdrdata));
-+ } else {
-+ printk(KERN_ERR
-+ "ipmisensors: Couldn't allocate memory for new SDR\n");
-+ }
-+
-+ return sdr;
-+}
-+
-+/**
-+ * Adds the given sdrdata struct to the given bmc's SDR list.
-+ *
-+ * @bmc: the bmc to send the message to.
-+ */
-+static inline void ipmisensors_add_sdr(struct ipmisensors_bmc_data *bmc,
-+ struct sdrdata *sdr)
-+{
-+ list_add(&sdr->list, &bmc->sdrs);
-+ printk(KERN_DEBUG
-+ "ipmisensors: SDR %d: type 0x%02x (%s)\n",
-+ bmc->sdr_count, sdr->stype, sdr->id);
-+ bmc->sdr_count++;
-+}
-+
-+/**
-+ * Cleanup the sdr list for the given BMC.
-+ *
-+ * @bmc: the bmc to send the message to.
-+ */
-+static void ipmisensors_sdr_cleanup(struct ipmisensors_bmc_data *bmc)
-+{
-+ struct sdrdata *cursor, *next;
-+
-+ /* find and free each sdr data struct */
-+ list_for_each_entry_safe(cursor, next, &bmc->sdrs, list) {
-+ device_remove_file(bmc->dev, &cursor->attr.dev_attr);
-+ device_remove_file(bmc->dev, &cursor->attr_min.dev_attr);
-+ device_remove_file(bmc->dev, &cursor->attr_max.dev_attr);
-+ device_remove_file(bmc->dev, &cursor->attr_label.dev_attr);
-+
-+ kfree(cursor->attr_name);
-+ kfree(cursor->attr_max_name);
-+ kfree(cursor->attr_min_name);
-+ kfree(cursor->attr_label_name);
-+
-+ list_del(&cursor->list);
-+ kmem_cache_free(driver_data.sdrdata_cache, cursor);
-+ }
-+}
-+
-+/* worker function for workqueue ipmisensors_workqueue */
-+static void ipmisensors_update_bmc(struct work_struct *work)
-+{
-+ struct ipmisensors_bmc_data *bmc = container_of(work, struct ipmisensors_bmc_data, update_work.work);
-+
-+ /* don't start an update cycle if one already in progress */
-+ if (bmc->state != STATE_READING) {
-+ struct sdrdata *cursor, *next;
-+ bmc->state = STATE_READING;
-+ printk(KERN_DEBUG "ipmisensors: starting update\n");
-+
-+ /* init semaphore to 1 for update cycle */
-+ sema_init(&bmc->update_semaphore, 1);
-+
-+ /* update each sdr reading */
-+ list_for_each_entry_safe(cursor, next, &bmc->sdrs, list) {
-+ ipmisensors_get_reading(bmc, cursor);
-+ }
-+ }
-+
-+ /* wait for readings (need timeout?) */
-+ down_interruptible(&bmc->update_semaphore);
-+
-+ printk(KERN_DEBUG "ipmisensors: update complete\n");
-+
-+ bmc->state = STATE_DONE;
-+
-+ /* if the module isn't cleaning up, schedule another update */
-+ if (!cleanup)
-+ queue_delayed_work(ipmisensors_workqueue, &bmc->update_work,
-+ bmc->update_period * HZ);
-+}
-+
-+/****** IPMI Message Sending ******/
-+
-+/**
-+ * Send a message to the IPMI BMC
-+ *
-+ * @bmc: the bmc to send the message to.
-+ * @msgid: the message id to use.
-+ * @msg: the ipmi message structure.
-+ */
-+static void ipmisensors_send_message(struct ipmisensors_bmc_data *bmc,
-+ long msgid, struct kernel_ipmi_msg *msg)
-+{
-+ if (msg->data == NULL)
-+ printk(KERN_DEBUG "ipmisensors: Send 0x%x\n", msg->cmd);
-+ else
-+ printk(KERN_DEBUG "ipmisensors: Send 0x%x 0x%x 0x%x\n",
-+ msg->cmd, msg->data[0], msg->data[1]);
-+
-+ /* This should be ipmi_request, but Corey had to remove
-+ * that due to it being unused at the moment, as soon as
-+ * this makes it into the kernel we should request it be re-instated.
-+ */
-+ ipmi_request_settime(bmc->user, &bmc->address, msgid, msg, bmc, 0,
-+ -1, 0);
-+}
-+
-+/**
-+ * Compose and send a "reserve SDR" message
-+ *
-+ * @bmc: the bmc to send the message to.
-+ */
-+static void ipmisensors_reserve_sdr(struct ipmisensors_bmc_data *bmc)
-+{
-+ bmc->tx_message.netfn = IPMI_NETFN_STORAGE_REQUEST;
-+ bmc->tx_message.cmd = IPMI_RESERVE_SDR;
-+ bmc->tx_message.data_len = 0;
-+ bmc->tx_message.data = NULL;
-+
-+ ipmisensors_send_message(bmc, bmc->msgid++, &bmc->tx_message);
-+}
-+
-+/**
-+ * Componse and send a "get SDR" message
-+ *
-+ * @bmc: the bmc to send the message to.
-+ * @res_id:
-+ * @record:
-+ * @offset:
-+ */
-+static void ipmisensors_get_sdr(struct ipmisensors_bmc_data *bmc, u16 res_id,
-+ u16 record, u8 offset)
-+{
-+ printk(KERN_DEBUG "ipmisensors: Get SDR 0x%x 0x%x 0x%x\n",
-+ res_id, record, offset);
-+ bmc->tx_message.netfn = IPMI_NETFN_STORAGE_REQUEST;
-+ bmc->tx_message.cmd = IPMI_GET_SDR;
-+ bmc->tx_message.data_len = 6;
-+ bmc->tx_message.data = bmc->tx_msg_data;
-+ bmc->tx_msg_data[0] = res_id & 0xff;
-+ bmc->tx_msg_data[1] = res_id >> 8;
-+ bmc->tx_msg_data[2] = record & 0xff;
-+ bmc->tx_msg_data[3] = record >> 8;
-+ bmc->tx_msg_data[4] = offset;
-+ bmc->tx_msg_data[5] = bmc->ipmi_sdr_partial_size;
-+
-+ ipmisensors_send_message(bmc, bmc->msgid++, &bmc->tx_message);
-+}
-+
-+/**
-+ * Compose and send a "set sensor threshold" message
-+ *
-+ * @bmc: the bmc to send the message to.
-+ * @id: the ipmi id number of the sensor.
-+ * @value: the new value for the threshold.
-+ * @lim_index: the index in the lim[] array for which this value applies.
-+ */
-+static void ipmisensors_set_sensor_threshold(struct ipmisensors_bmc_data *bmc,
-+ u8 number, int value,
-+ int lim_index)
-+{
-+ int i;
-+
-+ printk(KERN_DEBUG "ipmisensors: Set SDR Threshold %d %d %d\n",
-+ number, value, lim_index);
-+ bmc->tx_message.netfn = IPMI_NETFN_STORAGE_REQUEST;
-+ bmc->tx_message.cmd = IPMI_SET_SENSOR_THRESHOLD;
-+ bmc->tx_message.data_len = 8;
-+ bmc->tx_message.data = bmc->tx_msg_data;
-+ bmc->tx_msg_data[0] = number & 0xff;
-+ bmc->tx_msg_data[1] = 0x01 << lim_index;
-+
-+ if (lim_index > 5 || lim_index < 0) {
-+ printk(KERN_INFO
-+ "ipmisensors: Error - ipmisensors_set_sensor_threshold given invalid lim_index\n");
-+ return;
-+ }
-+
-+ for (i = 2; i < 8; i++)
-+ bmc->tx_msg_data[i] = 0x00;
-+
-+ bmc->tx_msg_data[lim_index] = value && 0xff;
-+
-+ ipmisensors_send_message(bmc, bmc->msgid++, &bmc->tx_message);
-+}
-+
-+/**
-+ * Compose and send a "get sensor reading" message for the given sdr.
-+ *
-+ * @bmc: the bmc to send the message to.
-+ * @sdr: the sdr of the sensor to get the reading for.
-+ */
-+static void ipmisensors_get_reading(struct ipmisensors_bmc_data *bmc,
-+ struct sdrdata *sdr)
-+{
-+ bmc->tx_message.netfn = IPMI_NETFN_SENSOR_EVENT_REQUEST;
-+ bmc->tx_message.cmd = IPMI_GET_SENSOR_STATE_READING;
-+ bmc->tx_message.data_len = 1;
-+ bmc->tx_message.data = bmc->tx_msg_data;
-+ bmc->tx_msg_data[0] = sdr->number;
-+ bmc->current_sdr = sdr;
-+
-+ ipmisensors_send_message(bmc, bmc->msgid++, &bmc->tx_message);
-+ down_interruptible(&bmc->update_semaphore);
-+}
-+
-+/****** IPMI Message Receiving ******/
-+
-+/**
-+ * Process an sensor reading response message.
-+ *
-+ * @bmc: the bmc the message is from
-+ * @msg: the IPMI SDR response message
-+ */
-+static void ipmisensors_rcv_reading_msg(struct ipmisensors_bmc_data *bmc,
-+ struct kernel_ipmi_msg *msg)
-+{
-+ struct sdrdata *sdr = bmc->current_sdr;
-+
-+ if (sdr == NULL) {
-+ printk(KERN_ERR
-+ "ipmisensors: Error ipmisensors_rcv_reading with NULL sdr\n");
-+ return;
-+ }
-+
-+ sdr->reading = msg->data[1];
-+ sdr->status = msg->data[2];
-+ sdr->thresholds = msg->data[3];
-+
-+ printk(KERN_DEBUG "ipmisensors: sensor %d (type %d) reading %d\n",
-+ sdr->number, sdr->stype, msg->data[1]);
-+
-+ up(&bmc->update_semaphore);
-+}
-+
-+/**
-+ * Unpack based on string type, convert to normal, null terminate.
-+ */
-+static void ipmisensors_sprintf(u8 * to, u8 * from, u8 type, u8 length)
-+{
-+ static const u8 *bcdplus = "0123456789 -.:,_";
-+ int i;
-+
-+ switch (type) {
-+ case 0: /* unicode */
-+ for (i = 0; i < length; i++)
-+ *to++ = (*from++ & 0x7f);
-+ *to = 0;
-+ break;
-+ case 1: /* BCD Plus */
-+ for (i = 0; i < length; i++)
-+ *to++ = bcdplus[*from++ & 0x0f];
-+ *to = 0;
-+ break;
-+ case 2: /* packed ascii *//* if not a mult. of 3 this will run over */
-+ for (i = 0; i < length; i += 3) {
-+ *to++ = *from & 0x3f;
-+ *to++ = *from >> 6 | ((*(from+1) & 0xf) << 2);
-+ from++;
-+ *to++ = *from >> 4 | ((*(from+1) & 0x3) << 4);
-+ from++;
-+ *to++ = (*from++ >> 2) & 0x3f;
-+ }
-+ *to = 0;
-+ break;
-+ case 3: /* normal */
-+ if (length > 1)
-+ memcpy(to, from, length);
-+ to[length] = 0;
-+ break;
-+ }
-+}
-+
-+/* IPMI V1.5 Section 30 */
-+static const int exps[] =
-+ { 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000 };
-+
-+/* Return 0 for fan, 2 for temp, 3 for voltage
-+ We could make it variable based on the accuracy (= log10(m * 10**k2));
-+ this would work for /proc output, however libsensors resolution
-+ is statically set in lib/chips.c */
-+static int decplaces(struct sdrdata *sd)
-+{
-+ switch (sd->stype) {
-+ case STYPE_TEMP:
-+ return 2;
-+ case STYPE_CURR:
-+ case STYPE_VOLT:
-+ return 3;
-+ case STYPE_FAN:
-+ default:
-+ return 0;
-+ }
-+}
-+
-+/* convert a raw value to a reading. IMPI V1.5 Section 30 */
-+static long conv_val(int value, struct sdrdata *sd)
-+{
-+ u8 k1, k2;
-+ long r;
-+
-+ r = value * sd->m;
-+ k1 = sd->k & 0x0f;
-+ k2 = sd->k >> 4;
-+ if (k1 < 8)
-+ r += sd->b * exps[k1];
-+ else
-+ r += sd->b / exps[16 - k1];
-+ r *= exps[decplaces(sd)];
-+ if (k2 < 8) {
-+ if (sd->linear != 7)
-+ r *= exps[k2];
-+ else
-+ /* this will always truncate to 0: r = 1 / (exps[k2] * r); */
-+ r = 0;
-+ } else {
-+ if (sd->linear != 7)
-+ r /= exps[16 - k2];
-+ else {
-+ if (r != 0)
-+ /* 1 / x * 10 ** (-m) == 10 ** m / x */
-+ r = exps[16 - k2] / r;
-+ else
-+ r = 0;
-+ }
-+ }
-+
-+ return r;
-+}
-+
-+static const char *threshold_text[] = {
-+ "upper non-recoverable threshold",
-+ "upper critical threshold",
-+ "upper non-critical threshold",
-+ "lower non-recoverable threshold",
-+ "lower critical threshold",
-+ "lower non-critical threshold",
-+ "positive-going hysteresis",
-+ "negative-going hysteresis" /* unused */
-+};
-+
-+/* select two out of the 8 possible readable thresholds, and place indexes into the limits
-+ array into lim1 and lim2. Set writable flags */
-+static void ipmisensors_select_thresholds(struct sdrdata *sd)
-+{
-+ u8 capab = sd->capab;
-+ u16 mask = sd->thresh_mask;
-+ int tmp;
-+
-+ sd->lim1 = -1;
-+ sd->lim2 = -1;
-+ sd->lim1_write = 0;
-+ sd->lim2_write = 0;
-+
-+ if (((capab & 0x0c) == 0x04) || /* readable thresholds ? */
-+ ((capab & 0x0c) == 0x08)) {
-+ /* select upper threshold */
-+ if (mask & 0x10) { /* upper crit */
-+ sd->lim1 = 1;
-+ if ((capab & 0x0c) == 0x08 && (mask & 0x1000))
-+ sd->lim1_write = 1;
-+ } else if (mask & 0x20) { /* upper non-recov */
-+ sd->lim1 = 0;
-+ if ((capab & 0x0c) == 0x08 && (mask & 0x2000))
-+ sd->lim1_write = 1;
-+ } else if (mask & 0x08) { /* upper non-crit */
-+ sd->lim1 = 2;
-+ if ((capab & 0x0c) == 0x08 && (mask & 0x0800))
-+ sd->lim1_write = 1;
-+ }
-+
-+ /* select lower threshold */
-+ if ((((capab & 0x30) == 0x10) || /* readable ? */
-+ ((capab & 0x30) == 0x20)) && /* pos hyst */
-+ sd->stype == STYPE_TEMP)
-+ sd->lim2 = 6;
-+ else if (mask & 0x02) { /* lower crit */
-+ sd->lim2 = 4;
-+ if ((capab & 0x0c) == 0x08 && (mask & 0x0200))
-+ sd->lim2_write = 1;
-+ } else if (mask & 0x04) { /* lower non-recov */
-+ sd->lim2 = 3;
-+ if ((capab & 0x0c) == 0x08 && (mask & 0x0400))
-+ sd->lim2_write = 1;
-+ } else if (mask & 0x01) { /* lower non-crit */
-+ sd->lim2 = 5;
-+ if ((capab & 0x0c) == 0x08 && (mask & 0x0100))
-+ sd->lim2_write = 1;
-+ }
-+ }
-+
-+ /* swap lim1/lim2 if m < 0 or function is 1/x (but not both!) */
-+ if ((sd->m < 0 && sd->linear != 7) || (sd->m >= 0 && sd->linear == 7)) {
-+ tmp = sd->lim1;
-+ sd->lim1 = sd->lim2;
-+ sd->lim2 = tmp;
-+ }
-+
-+ if (sd->lim1 >= 0)
-+ printk(KERN_INFO "ipmisensors: using %s for upper limit\n",
-+ threshold_text[sd->lim1]);
-+ else
-+ printk(KERN_DEBUG "ipmisensors: no readable upper limit\n");
-+
-+ if (sd->lim2 >= 0)
-+ printk(KERN_INFO "ipmisensors: using %s for lower limit\n",
-+ threshold_text[sd->lim2]);
-+ else
-+ printk(KERN_DEBUG "ipmisensors: no readable lower limit\n");
-+}
-+
-+/************* sysfs callback functions *********/
-+static ssize_t show_update_period(struct device *dev,
-+ struct device_attribute *attr, char *buf)
-+{
-+ struct ipmisensors_bmc_device_attribute *aattr =
-+ to_ipmisensors_bmc_dev_attr(attr);
-+
-+ return snprintf(buf, 20, "%d\n", aattr->bmc->update_period);
-+}
-+
-+static ssize_t store_update_period(struct device *dev,
-+ struct device_attribute *attr,
-+ const char *buf, size_t count)
-+{
-+ struct ipmisensors_bmc_device_attribute *aattr =
-+ to_ipmisensors_bmc_dev_attr(attr);
-+
-+ aattr->bmc->update_period = simple_strtoul(buf, NULL, 10);;
-+ return count;
-+};
-+
-+static ssize_t show_sensor(struct device *dev, struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct ipmisensors_device_attribute *sattr =
-+ to_ipmisensors_dev_attr(attr);
-+ return snprintf(buf, 20, "%ld\n",
-+ conv_val(sattr->sdr->reading, sattr->sdr));
-+}
-+
-+static ssize_t show_sensor_max(struct device *dev,
-+ struct device_attribute *attr, char *buf)
-+{
-+ long max = 0;
-+ struct ipmisensors_device_attribute *sattr =
-+ to_ipmisensors_dev_attr(attr);
-+
-+ if (sattr->sdr->lim1 >= 0)
-+ max = conv_val(sattr->sdr->limits[sattr->sdr->lim1],
-+ sattr->sdr);
-+ return snprintf(buf, 20, "%ld\n", max);
-+}
-+
-+static ssize_t show_sensor_min(struct device *dev,
-+ struct device_attribute *attr, char *buf)
-+{
-+ long min = 0;
-+ struct ipmisensors_device_attribute *sattr =
-+ to_ipmisensors_dev_attr(attr);
-+
-+ if (sattr->sdr->lim2 >= 0)
-+ min = conv_val(sattr->sdr->limits[sattr->sdr->lim2],
-+ sattr->sdr);
-+ return snprintf(buf, 20, "%ld\n", min);
-+};
-+
-+static ssize_t show_sensor_label(struct device *dev,
-+ struct device_attribute *attr, char *buf)
-+{
-+ u8 label[SDR_MAX_UNPACKED_ID_LENGTH];
-+ struct ipmisensors_device_attribute *sattr =
-+ to_ipmisensors_dev_attr(attr);
-+
-+ ipmisensors_sprintf(label, sattr->sdr->id, sattr->sdr->string_type,
-+ sattr->sdr->id_length);
-+ return snprintf(buf, 20, "%s\n", label);
-+};
-+
-+static ssize_t store_sensor_max(struct device *dev,
-+ struct device_attribute *attr, const char *buf,
-+ size_t count)
-+{
-+ long val = simple_strtoul(buf, NULL, 10);
-+ struct ipmisensors_device_attribute *sattr =
-+ to_ipmisensors_dev_attr(attr);
-+ printk(KERN_DEBUG "ipmisensors: set max on sensor #%d to %ld",
-+ sattr->sdr->number, val);
-+ ipmisensors_set_sensor_threshold(sattr->sdr->bmc, sattr->sdr->number,
-+ val, sattr->sdr->lim1);
-+ return count;
-+};
-+
-+static ssize_t store_sensor_min(struct device *dev,
-+ struct device_attribute *attr, const char *buf,
-+ size_t count)
-+{
-+ long val = simple_strtoul(buf, NULL, 10);
-+ struct ipmisensors_device_attribute *sattr =
-+ to_ipmisensors_dev_attr(attr);
-+ printk(KERN_DEBUG "ipmisensors: set min on sensor #%d to %ld",
-+ sattr->sdr->number, val);
-+ ipmisensors_set_sensor_threshold(sattr->sdr->bmc, sattr->sdr->number,
-+ val, sattr->sdr->lim2);
-+ return count;
-+};
-+
-+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
-+ char *buf)
-+{
-+ struct ipmisensors_bmc_device_attribute *aattr =
-+ to_ipmisensors_bmc_dev_attr(attr);
-+ return snprintf(buf, 20, "%d\n", aattr->bmc->alarms);
-+};
-+
-+static ssize_t show_name(struct device *dev, struct device_attribute *attr,
-+ char *buf)
-+{
-+ return snprintf(buf, 20, "%s\n", driver_data.driver_name);
-+};
-+
-+/* work function to build the sysfs entries using the ipmi sdrs */
-+static void ipmisensors_build_sysfs(struct work_struct *work)
-+{
-+ int temps = 0, volts = 0, currs = 0, fans = 0;
-+ struct sdrdata *cursor, *next;
-+ struct ipmisensors_bmc_data *bmc = container_of(work, struct ipmisensors_bmc_data, sysfs_work);
-+
-+ /* find and create entries for each sdr data struct */
-+ list_for_each_entry_safe(cursor, next, &bmc->sdrs, list) {
-+ u8 id[SDR_MAX_UNPACKED_ID_LENGTH];
-+
-+ cursor->attr_name =
-+ (char *)kmalloc(sizeof(char) * MAX_FILENAME_LENGTH,
-+ GFP_KERNEL);
-+ cursor->attr_max_name =
-+ (char *)kmalloc(sizeof(char) * MAX_FILENAME_LENGTH,
-+ GFP_KERNEL);
-+ cursor->attr_min_name =
-+ (char *)kmalloc(sizeof(char) * MAX_FILENAME_LENGTH,
-+ GFP_KERNEL);
-+
-+ if (cursor->id_length > 0) {
-+ cursor->attr_label_name =
-+ (char *)kmalloc(sizeof(char) * MAX_FILENAME_LENGTH,
-+ GFP_KERNEL);
-+
-+ if (cursor->attr_label_name == NULL) {
-+ printk(KERN_INFO
-+ "ipmisensors: Out of memory (kmalloc failed)");
-+ kfree(cursor->attr_name);
-+ kfree(cursor->attr_max_name);
-+ kfree(cursor->attr_min_name);
-+ return;
-+ }
-+ }
-+
-+ if (cursor->attr_name == NULL || cursor->attr_max_name == NULL
-+ || cursor->attr_min_name == NULL
-+ || cursor->attr_label_name == NULL) {
-+ printk(KERN_INFO
-+ "ipmisensors: Out of memory (kmalloc failed)");
-+ kfree(cursor->attr_name);
-+ kfree(cursor->attr_max_name);
-+ kfree(cursor->attr_min_name);
-+ kfree(cursor->attr_label_name);
-+ return;
-+ }
-+
-+ switch (cursor->stype) {
-+ case (STYPE_TEMP):
-+ /* create the name of the sensor */
-+ snprintf(cursor->attr_name, MAX_FILENAME_LENGTH,
-+ "temp%d_input", ++temps);
-+ /* create min, max attributes */
-+ snprintf(cursor->attr_max_name, MAX_FILENAME_LENGTH,
-+ "temp%d_max", temps);
-+ snprintf(cursor->attr_min_name, MAX_FILENAME_LENGTH,
-+ "temp%d_min", temps);
-+ /* create the label of the sensor */
-+ snprintf(cursor->attr_label_name, MAX_FILENAME_LENGTH,
-+ "temp%d_label", temps);
-+ break;
-+ case (STYPE_VOLT):
-+ /* create the name of the sensor */
-+ snprintf(cursor->attr_name, MAX_FILENAME_LENGTH,
-+ "in%d_input", ++volts);
-+ /* create min, max attributes */
-+ snprintf(cursor->attr_max_name, MAX_FILENAME_LENGTH,
-+ "in%d_max", volts);
-+ snprintf(cursor->attr_min_name, MAX_FILENAME_LENGTH,
-+ "in%d_min", volts);
-+ /* create the label of the sensor */
-+ snprintf(cursor->attr_label_name, MAX_FILENAME_LENGTH,
-+ "in%d_label", volts);
-+ break;
-+ case (STYPE_CURR):
-+ /* create the name of the sensor */
-+ snprintf(cursor->attr_name, MAX_FILENAME_LENGTH,
-+ "curr%d_input", ++currs);
-+ /* create min, max attributes */
-+ sprintf(cursor->attr_max_name, "curr%d_max", currs);
-+ sprintf(cursor->attr_min_name, "curr%d_min", currs);
-+ /* create the label of the sensor */
-+ snprintf(cursor->attr_label_name, MAX_FILENAME_LENGTH,
-+ "curr%d_label", currs);
-+ break;
-+ case (STYPE_FAN):
-+ /* create the name of the sensor */
-+ snprintf(cursor->attr_name, MAX_FILENAME_LENGTH,
-+ "fan%d_input", ++fans);
-+ /* create min, max attributes */
-+ sprintf(cursor->attr_max_name, "fan%d_max", fans);
-+ sprintf(cursor->attr_min_name, "fan%d_min", fans);
-+ /* create the label of the sensor */
-+ snprintf(cursor->attr_label_name, MAX_FILENAME_LENGTH,
-+ "fan%d_label", fans);
-+ break;
-+ default:
-+ printk(KERN_INFO "ipmisensors: unkown sensor type\n");
-+ continue;
-+ }
-+
-+ cursor->attr.dev_attr.attr.name = cursor->attr_name;
-+ cursor->attr.dev_attr.attr.mode = S_IRUGO;
-+ cursor->attr.dev_attr.attr.owner = THIS_MODULE;
-+ cursor->attr.dev_attr.show = show_sensor;
-+ cursor->attr.dev_attr.store = NULL;
-+ cursor->attr.sdr = cursor;
-+
-+ cursor->attr_min.dev_attr.attr.name = cursor->attr_min_name;
-+ cursor->attr_min.dev_attr.attr.owner = THIS_MODULE;
-+ cursor->attr_min.dev_attr.show = show_sensor_min;
-+ cursor->attr_min.sdr = cursor;
-+
-+ if (cursor->lim2_write) {
-+ printk(KERN_INFO
-+ "ipmisensors: You have a writable sensor threshold! Send me an e-mail at <yani.ioannou@gmail.com>.\n");
-+ cursor->attr_min.dev_attr.store = store_sensor_min;
-+ cursor->attr_min.dev_attr.attr.mode = S_IWUSR | S_IRUGO;
-+ } else {
-+ cursor->attr_min.dev_attr.store = NULL;
-+ cursor->attr_min.dev_attr.attr.mode = S_IRUGO;
-+ }
-+
-+ cursor->attr_max.dev_attr.attr.name = cursor->attr_max_name;
-+ cursor->attr_max.dev_attr.attr.owner = THIS_MODULE;
-+ cursor->attr_max.dev_attr.show = show_sensor_max;
-+ cursor->attr_max.sdr = cursor;
-+
-+ if (cursor->lim1_write) {
-+ printk(KERN_INFO
-+ "ipmisensors: You have a writable sensor threshold! Send me an e-mail at <yani.ioannou@gmail.com>.\n");
-+ cursor->attr_max.dev_attr.store = store_sensor_max;
-+ cursor->attr_max.dev_attr.attr.mode = S_IWUSR | S_IRUGO;
-+ } else {
-+ cursor->attr_max.dev_attr.store = NULL;
-+ cursor->attr_max.dev_attr.attr.mode = S_IRUGO;
-+ }
-+
-+ if (cursor->id_length > 0) {
-+ cursor->attr_label.dev_attr.attr.name =
-+ cursor->attr_label_name;
-+ cursor->attr_label.dev_attr.attr.mode = S_IRUGO;
-+ cursor->attr_label.dev_attr.attr.owner = THIS_MODULE;
-+ cursor->attr_label.dev_attr.show = show_sensor_label;
-+ cursor->attr_label.dev_attr.store = NULL;
-+ cursor->attr_label.sdr = cursor;
-+ }
-+
-+ printk(KERN_INFO
-+ "ipmisensors: registering sensor %d: (type 0x%.2x) "
-+ "(fmt=%d; m=%d; b=%d; k1=%d; k2=%d; cap=0x%.2x; mask=0x%.4x)\n",
-+ cursor->number, cursor->stype, cursor->format, cursor->m,
-+ cursor->b, cursor->k & 0xf, cursor->k >> 4,
-+ cursor->capab, cursor->thresh_mask);
-+
-+ if (cursor->id_length > 0) {
-+ ipmisensors_sprintf(id, cursor->id, cursor->string_type,
-+ cursor->id_length);
-+ switch (cursor->stype) {
-+ case (STYPE_TEMP):
-+ printk(KERN_INFO
-+ "ipmisensors: sensors.conf: label temp%d \"%s\"\n",
-+ temps, id);
-+ break;
-+ case (STYPE_VOLT):
-+ printk(KERN_INFO
-+ "ipmisensors: sensors.conf: label in%d \"%s\"\n",
-+ volts, id);
-+ break;
-+ case (STYPE_CURR):
-+ printk(KERN_INFO
-+ "ipmisensors: sensors.conf: label curr%d \"%s\"\n",
-+ currs, id);
-+ break;
-+ case (STYPE_FAN):
-+ printk(KERN_INFO
-+ "ipmisensors: sensors.conf: label fan%d \"%s\"\n",
-+ fans, id);
-+ break;
-+ }
-+ }
-+
-+ ipmisensors_select_thresholds(cursor);
-+
-+ if (cursor->linear != 0 && cursor->linear != 7) {
-+ printk(KERN_INFO
-+ "ipmisensors: sensor %d: nonlinear function 0x%.2x unsupported, expect bad results\n",
-+ cursor->number, cursor->linear);
-+ }
-+
-+ if ((cursor->format & 0x03) == 0x02) {
-+ printk(KERN_INFO
-+ "ipmisensors: sensor %d: 1's complement format unsupported, expect bad results\n",
-+ cursor->number);
-+ } else if ((cursor->format & 0x03) == 0x03) {
-+ printk(KERN_INFO
-+ "ipmisensors: sensor %d: threshold sensor only, no readings available",
-+ cursor->number);
-+ }
-+
-+ if (cursor->lim1_write || cursor->lim2_write)
-+ cursor->attr.dev_attr.attr.mode = 0644;
-+ else
-+ cursor->attr.dev_attr.attr.mode = 0444;
-+
-+ if (device_create_file(bmc->dev, &cursor->attr.dev_attr) < 0
-+ || device_create_file(bmc->dev,
-+ &cursor->attr_min.dev_attr) < 0
-+ || device_create_file(bmc->dev,
-+ &cursor->attr_max.dev_attr) < 0
-+ || (cursor->id_length >
-+ 0 ? device_create_file(bmc->dev,
-+ &cursor->attr_label.dev_attr) <
-+ 0 : 0)
-+ ) {
-+ printk(KERN_INFO
-+ "ipmisensors: sysfs file creation failed for SDR %d (%s).\n",
-+ cursor->number, cursor->id);
-+ kfree(cursor->attr_name);
-+ kfree(cursor->attr_max_name);
-+ kfree(cursor->attr_min_name);
-+ kfree(cursor->attr_label_name);
-+ return;
-+ }
-+ }
-+
-+ bmc->alarms_attr.dev_attr.attr.name = "alarms";
-+ bmc->alarms_attr.dev_attr.attr.mode = S_IRUGO;
-+ bmc->alarms_attr.dev_attr.attr.owner = THIS_MODULE;
-+ bmc->alarms_attr.dev_attr.show = show_alarms;
-+ bmc->alarms_attr.dev_attr.store = NULL;
-+ bmc->alarms_attr.bmc = bmc;
-+
-+ if (device_create_file(bmc->dev, &bmc->alarms_attr.dev_attr) < 0) {
-+ printk(KERN_INFO
-+ "ipmisensors: Failed to create sysfs entry 'alarms'");
-+ return;
-+ }
-+
-+ bmc->name_attr.attr.name = "name";
-+ bmc->name_attr.attr.mode = S_IRUGO;
-+ bmc->name_attr.attr.owner = THIS_MODULE;
-+ bmc->name_attr.show = show_name;
-+
-+ if (device_create_file(bmc->dev, &bmc->name_attr) < 0) {
-+ printk(KERN_INFO
-+ "ipmisensors: Failed to create sysfs entry 'name'");
-+ return;
-+ }
-+
-+ bmc->update_attr.dev_attr.attr.name = "update_period";
-+ bmc->update_attr.dev_attr.attr.mode = S_IWUSR | S_IRUGO;
-+ bmc->update_attr.dev_attr.attr.owner = THIS_MODULE;
-+ bmc->update_attr.dev_attr.show = show_update_period;
-+ bmc->update_attr.dev_attr.store = store_update_period;
-+ bmc->update_attr.bmc = bmc;
-+
-+ if (device_create_file(bmc->dev, &bmc->update_attr.dev_attr) < 0) {
-+ printk(KERN_INFO
-+ "ipmisensors: Failed to create sysfs entry 'update_period'");
-+ return;
-+ }
-+
-+ printk(KERN_INFO
-+ "ipmisensors: registered %d temp, %d volt, %d current, %d fan sensors\n",
-+ temps, volts, currs, fans);
-+
-+ /* This completes the initialization. We can now kickoff the
-+ * periodic update of the bmc sensor's values by scheduling
-+ * the first work.
-+ */
-+ queue_work(ipmisensors_workqueue, &bmc->update_work.work);
-+
-+}
-+
-+/**
-+ * Process an SDR response message, save the SDRs we like in the sdr
-+ * list for the given BMC.
-+ *
-+ * @bmc: the bmc the message is from
-+ * @msg: the IPMI SDR response message
-+ */
-+static void ipmisensors_rcv_sdr_msg(struct ipmisensors_bmc_data *bmc,
-+ struct kernel_ipmi_msg *msg)
-+{
-+ u16 record;
-+ int type;
-+ int stype;
-+ int id_length;
-+ int i;
-+ int ipmi_ver = 0;
-+ unsigned char *data;
-+ u8 id[SDR_MAX_UNPACKED_ID_LENGTH];
-+ struct sdrdata *sdr;
-+
-+ if (msg->data[0] != 0) {
-+ /* cut request in half and try again */
-+ bmc->ipmi_sdr_partial_size /= 2;
-+ if (bmc->ipmi_sdr_partial_size < 8) {
-+ printk(KERN_INFO
-+ "ipmisensors: IPMI buffers too small, giving up\n");
-+ bmc->state = STATE_DONE;
-+ return;
-+ }
-+ printk(KERN_DEBUG
-+ "ipmisensors: Reducing SDR request size to %d\n",
-+ bmc->ipmi_sdr_partial_size);
-+
-+ ipmisensors_get_sdr(bmc, 0, 0, 0);
-+ bmc->state = STATE_SDR;
-+ return;
-+ }
-+ if (bmc->ipmi_sdr_partial_size < IPMI_SDR_SIZE) {
-+ if (bmc->rx_msg_data_offset == 0) {
-+ memcpy(bmc->rx_msg_data, msg->data,
-+ bmc->ipmi_sdr_partial_size + 3);
-+ bmc->rx_msg_data_offset =
-+ bmc->ipmi_sdr_partial_size + 3;
-+ } else {
-+ memcpy(bmc->rx_msg_data + bmc->rx_msg_data_offset,
-+ msg->data + 3, bmc->ipmi_sdr_partial_size);
-+ bmc->rx_msg_data_offset += bmc->ipmi_sdr_partial_size;
-+ }
-+ if (bmc->rx_msg_data_offset > bmc->rx_msg_data[7] + 7) {
-+ /* got last chunk */
-+ bmc->rx_msg_data_offset = 0;
-+ data = bmc->rx_msg_data;
-+ } else {
-+ /* get more */
-+ record =
-+ (bmc->rx_msg_data[4] << 8) | bmc->rx_msg_data[3];
-+ ipmisensors_get_sdr(bmc, bmc->resid, record,
-+ bmc->rx_msg_data_offset - 3);
-+ bmc->state = STATE_SDR;
-+ return;
-+ }
-+ } else {
-+ /* got it in one chunk */
-+ data = msg->data;
-+ }
-+
-+ bmc->nextrecord = (data[2] << 8) | data[1];
-+
-+ /* If the ipmi version is 0.9 we have to remap some things.
-+ * Yes this is very ugly, but we aren't the ones who
-+ * implemented an incomplete spec!
-+ */
-+ ipmi_ver = data[5];
-+
-+ type = data[6];
-+ /* known SDR type */
-+ if (type == 1 || type == 2) {
-+ stype = data[(ipmi_ver == 0x90 ? 16 : 15)];
-+ /* known sensor type */
-+ if (stype <= STYPE_MAX) {
-+ if (data[(ipmi_ver == 0x90 ? 17 : 16)] != 0x01) {
-+ if (type == 1)
-+ ipmisensors_sprintf(id, &data[51],
-+ data[50] >> 6,
-+ data[50] & 0x1f);
-+ else
-+ ipmisensors_sprintf(id,
-+ &data[(ipmi_ver ==
-+ 0x90 ? 30 :
-+ 35)],
-+ data[(ipmi_ver ==
-+ 0x90 ? 29 :
-+ 34)] >> 6,
-+ data[(ipmi_ver ==
-+ 0x90 ? 29 :
-+ 34)] & 0x1f);
-+ printk(KERN_INFO
-+ "ipmisensors: skipping non-threshold sensor \"%s\"\n",
-+ id);
-+ } else {
-+ /* add entry to sdrd table */
-+ sdr = ipmisensors_new_sdr();
-+ if (!sdr) {
-+ printk(KERN_ERR
-+ "ipmisensors: could not allocate memory for new SDR");
-+ return;
-+ }
-+ sdr->bmc = bmc;
-+ sdr->stype = stype;
-+ sdr->number = data[10];
-+ sdr->capab = data[(ipmi_ver == 0x90 ? 15 : 14)];
-+ sdr->thresh_mask =
-+ (((u16) data[(ipmi_ver == 0x90 ? 21 : 22)])
-+ << 8) | data[21];
-+ if (type == 1) {
-+ sdr->format =
-+ data[(ipmi_ver ==
-+ 0x90 ? 22 : 24)] >> 6;
-+ sdr->linear =
-+ data[(ipmi_ver ==
-+ 0x90 ? 25 : 26)] & 0x7f;
-+ sdr->m =
-+ data[(ipmi_ver == 0x90 ? 26 : 27)];
-+ sdr->m |= ((u16)
-+ (data
-+ [(ipmi_ver ==
-+ 0x90 ? 27 : 28)]
-+ & 0xc0)) << 2;
-+ if (sdr->m & 0x0200) {
-+ /* sign extend */
-+ sdr->m |= 0xfc00;
-+ }
-+ sdr->b =
-+ data[(ipmi_ver == 0x90 ? 28 : 29)];
-+ sdr->b |= ((u16)
-+ (data
-+ [(ipmi_ver ==
-+ 0x90 ? 29 : 30)]
-+ & 0xc0)) << 2;
-+ if (sdr->b & 0x0200) {
-+ /* sign extend */
-+ sdr->b |= 0xfc00;
-+ }
-+ sdr->k =
-+ data[(ipmi_ver == 0x90 ? 31 : 32)];
-+ sdr->nominal =
-+ data[(ipmi_ver == 0x90 ? 33 : 34)];
-+ for (i = 0; i < SDR_LIMITS; i++) {
-+ /* assume readable */
-+ sdr->limits[i] =
-+ data[(ipmi_ver ==
-+ 0x90 ? 40 : 39) + i];
-+ }
-+ sdr->string_type = data[50] >> 6;
-+ id_length = data[50] & 0x1f;
-+ memcpy(sdr->id, &data[51], id_length);
-+ sdr->id_length = id_length;
-+ } else {
-+ sdr->m = 1;
-+ sdr->b = 0;
-+ sdr->k = 0;
-+ sdr->string_type =
-+ data[(ipmi_ver ==
-+ 0x90 ? 29 : 34)] >> 6;
-+ id_length = data[34] & 0x1f;
-+ if (id_length > 0) {
-+ memcpy(sdr->id,
-+ &data[(ipmi_ver ==
-+ 0x90 ? 30 : 35)],
-+ id_length);
-+ }
-+ sdr->id_length = id_length;
-+ /* limits?? */
-+ if (ipmi_ver == 0x90) {
-+ memcpy(sdr->id,
-+ &data[30], id_length);
-+ sdr->id_length = id_length;
-+ }
-+ }
-+ ipmisensors_add_sdr(bmc, sdr);
-+ }
-+ }
-+ /* peek at the other SDR types */
-+ } else if (type == 0x10 || type == 0x11 || type == 0x12) {
-+ ipmisensors_sprintf(id, data + 19, data[18] >> 6,
-+ data[18] & 0x1f);
-+ if (type == 0x10) {
-+ printk(KERN_INFO
-+ "ipmisensors: Generic Device acc=0x%x; slv=0x%x; lun=0x%x; type=0x%x; \"%s\"\n",
-+ data[8], data[9], data[10], data[13], id);
-+ } else if (type == 0x11) {
-+ printk(KERN_INFO
-+ "ipmisensors: FRU Device acc=0x%x; slv=0x%x; log=0x%x; ch=0x%x; type=0x%x; \"%s\"\n",
-+ data[8], data[9], data[10], data[11], data[13],
-+ id);
-+ } else {
-+ printk(KERN_INFO
-+ "ipmisensors: Mgmt Ctllr Device slv=0x%x; \"%s\"\n",
-+ data[8], id);
-+ }
-+ } else if (type == 0x14) {
-+ printk(KERN_INFO
-+ "ipmisensors: Message Channel Info Records:\n");
-+ for (i = 0; i < 8; i++) {
-+ printk(KERN_INFO "ipmisensors: Channel %d info 0x%x\n",
-+ i, data[9 + i]);
-+ }
-+ } else {
-+ printk(KERN_INFO "ipmisensors: Skipping SDR type 0x%x\n", type);
-+ }
-+ if (ipmi_ver != 0x90) {
-+ if (bmc->nextrecord >= 6224) {
-+ /*YJ stop sensor scan on poweredge 1750 */
-+ bmc->nextrecord = 0xffff;
-+ }
-+ }
-+
-+ if (bmc->nextrecord == 0xFFFF) {
-+ if (bmc->sdr_count == 0) {
-+ printk(KERN_INFO
-+ "ipmisensors: No recognized sensors found.\n");
-+ bmc->state = STATE_DONE;
-+ } else {
-+ printk(KERN_INFO "ipmisensors: all sensors detected\n");
-+ bmc->state = STATE_SYSTABLE;
-+
-+ /* Schedule sysfs build/registration work */
-+ INIT_WORK(&bmc->sysfs_work, ipmisensors_build_sysfs);
-+ queue_work(ipmisensors_workqueue, &bmc->sysfs_work);
-+ }
-+ } else {
-+ ipmisensors_get_sdr(bmc, 0, bmc->nextrecord, 0);
-+ bmc->state = STATE_SDR;
-+ }
-+}
-+
-+/**
-+ * Process incoming messages based on internal state
-+ *
-+ * @bmc: the bmc the message is from.
-+ * @msg: the ipmi message to process.
-+ */
-+static void ipmisensors_rcv_msg(struct ipmisensors_bmc_data *bmc,
-+ struct kernel_ipmi_msg *msg)
-+{
-+ switch (bmc->state) {
-+ case STATE_INIT:
-+ case STATE_RESERVE:
-+ bmc->resid = (((u16) msg->data[2]) << 8) | msg->data[1];
-+
-+ printk(KERN_DEBUG "ipmisensors: Got first resid 0x%.4x\n",
-+ bmc->resid);
-+
-+ ipmisensors_get_sdr(bmc, 0, 0, 0);
-+ bmc->state = STATE_SDR;
-+ break;
-+
-+ case STATE_SDR:
-+ case STATE_SDRPARTIAL:
-+ ipmisensors_rcv_sdr_msg(bmc, msg);
-+ break;
-+
-+ case STATE_READING:
-+ ipmisensors_rcv_reading_msg(bmc, msg);
-+ break;
-+
-+ case STATE_UNCANCEL:
-+ bmc->resid = (((u16) msg->data[2]) << 8) | msg->data[1];
-+
-+ printk(KERN_DEBUG "ipmisensors: Got new resid 0x%.4x\n",
-+ bmc->resid);
-+
-+ bmc->rx_msg_data_offset = 0;
-+ ipmisensors_get_sdr(bmc, 0, bmc->nextrecord, 0);
-+ bmc->state = STATE_SDR;
-+ break;
-+
-+ case STATE_DONE:
-+ case STATE_SYSTABLE:
-+ break;
-+ default:
-+ bmc->state = STATE_INIT;
-+ }
-+}
-+
-+/**
-+ * Callback to handle a received IPMI message from a given BMC.
-+ *
-+ * @msg: the received message.
-+ * @handler_data: a pointer to the particular bmc ipmisensors_bmc_data struct.
-+ */
-+static void ipmisensors_msg_handler(struct ipmi_recv_msg *msg,
-+ void *user_msg_data)
-+{
-+ struct ipmisensors_bmc_data *bmc =
-+ (struct ipmisensors_bmc_data *)user_msg_data;
-+
-+ if (msg->msg.data[0] != 0)
-+ printk(KERN_WARNING
-+ "ipmisensors: Error 0x%x on cmd 0x%x/0x%x\n",
-+ msg->msg.data[0], msg->msg.netfn, msg->msg.cmd);
-+
-+ if (bmc != NULL && ipmisensors_intf_registered(bmc->interface_id)) {
-+ if (bmc->state == STATE_SDR &&
-+ msg->msg.data[0] == IPMI_INVALID_RESERVATION_ID) {
-+ /* reservation cancelled, get new resid */
-+ if (++bmc->errorcount > 275) {
-+ printk(KERN_ERR
-+ "ipmisensors: Too many reservations cancelled, giving up\n");
-+ bmc->state = STATE_DONE;
-+ } else {
-+ printk(KERN_DEBUG
-+ "ipmisensors: resid 0x%04x cancelled, getting new one\n",
-+ bmc->resid);
-+
-+ ipmisensors_reserve_sdr(bmc);
-+ bmc->state = STATE_UNCANCEL;
-+ }
-+ } else if (msg->msg.data[0] != IPMI_CC_NO_ERROR &&
-+ msg->msg.data[0] != IPMI_ERR_RETURNING_REQ_BYTES &&
-+ msg->msg.data[0] != IPMI_ERR_PROVIDING_RESPONSE) {
-+ printk(KERN_ERR
-+ "ipmisensors: Error 0x%x on cmd 0x%x/0x%x; state = %d; probably fatal.\n",
-+ msg->msg.data[0], msg->msg.netfn & 0xfe,
-+ msg->msg.cmd, bmc->state);
-+ } else {
-+ printk(KERN_DEBUG "ipmisensors: received message\n");
-+ ipmisensors_rcv_msg(bmc, &msg->msg);
-+ }
-+
-+ } else {
-+ printk(KERN_WARNING
-+ "ipmisensors: Response for non-registered BMC\n");
-+ if (bmc != NULL)
-+ printk(KERN_DEBUG "ipmisensors: BMC ID: %d\n",
-+ bmc->interface_id);
-+ else
-+ printk(KERN_DEBUG "ipmisensors: BMC NULL!\n");
-+ }
-+
-+ ipmi_free_recv_msg(msg);
-+}
-+
-+/****** IPMI Interface Initialization ******/
-+
-+/**
-+ * Return true if the given ipmi interface has been registered.
-+ *
-+ * @ipmi_intf: The IPMI interface number.
-+ */
-+static int ipmisensors_intf_registered(int ipmi_intf)
-+{
-+ int found = 0;
-+ struct ipmisensors_bmc_data *cursor, *next;
-+
-+ /* find and free the ipmisensors_bmc_data struct */
-+ list_for_each_entry_safe(cursor, next, &driver_data.bmc_data, list) {
-+ if (cursor->interface_id == ipmi_intf) {
-+ found++;
-+ }
-+ }
-+
-+ return found;
-+}
-+
-+/**
-+ * Return true if the given BMC has been registered.
-+ *
-+ * @bmc: The BMC device.
-+ */
-+static int ipmisensors_bmc_registered(struct device *bmc)
-+{
-+ int found = 0;
-+ struct ipmisensors_bmc_data *cursor, *next;
-+
-+ /* find and free the ipmisensors_bmc_data struct */
-+ list_for_each_entry_safe(cursor, next, &driver_data.bmc_data, list) {
-+ if (cursor->dev == bmc) {
-+ found++;
-+ }
-+ }
-+
-+ return found;
-+}
-+
-+/**
-+ * Register new IPMI BMC interface. Interface indpendent callback created
-+ * for flexibility in adding new types of interface callbacks in future.
-+ *
-+ * @ipmi_intf: The IPMI interface number.
-+ */
-+static void ipmisensors_register_bmc(int ipmi_intf, struct ipmi_addr *address)
-+{
-+ int error;
-+
-+ /* allocate a new ipmisensors_bmc_data struct */
-+
-+ struct ipmisensors_bmc_data *bmc = (struct ipmisensors_bmc_data *)
-+ kmalloc(sizeof(struct ipmisensors_bmc_data), GFP_KERNEL);
-+
-+ /* initialize members */
-+ INIT_LIST_HEAD(&bmc->sdrs);
-+ bmc->interface_id = ipmi_intf;
-+
-+ bmc->address = *address;
-+
-+ bmc->sdr_count = 0;
-+ bmc->msgid = 0;
-+ bmc->ipmi_sdr_partial_size = IPMI_CHUNK_SIZE;
-+ bmc->state = STATE_INIT;
-+ bmc->errorcount = 0;
-+ bmc->rx_msg_data_offset = 0;
-+ bmc->dev = ipmi_get_bmcdevice(ipmi_intf);
-+
-+ /* default to 3 second min update interval */
-+ bmc->update_period = 3;
-+
-+ if (bmc->dev == NULL) {
-+ printk(KERN_ERR
-+ "ipmisensors: Error, couldn't get BMC device for interface %d\n",
-+ bmc->interface_id);
-+ kfree(bmc);
-+ return;
-+ }
-+
-+ /* Create IPMI messaging interface user */
-+ error = ipmi_create_user(bmc->interface_id, &driver_data.ipmi_hndlrs,
-+ bmc, &bmc->user);
-+ if (error < 0) {
-+ printk(KERN_ERR
-+ "ipmisensors: Error, unable to register user with ipmi interface %d\n",
-+ bmc->interface_id);
-+ kfree(bmc);
-+ return;
-+ }
-+
-+ /* Register the BMC as a HWMON class device */
-+ bmc->class_dev = hwmon_device_register(bmc->dev);
-+
-+ if (IS_ERR(bmc->class_dev)) {
-+ printk(KERN_ERR
-+ "ipmisensors: Error, unable to register hwmon class device for interface %d\n",
-+ bmc->interface_id);
-+ kfree(bmc);
-+ return;
-+ }
-+
-+ /* Register the BMC in the driver */
-+ if (ipmisensors_bmc_registered(bmc->dev)) {
-+ printk(KERN_ERR
-+ "ipmisensors: BMC on interface %d already registered\n",
-+ bmc->interface_id);
-+ hwmon_device_unregister(bmc->class_dev);
-+ kfree(bmc);
-+ return;
-+ }
-+
-+ ipmi_get_version(bmc->user, &bmc->ipmi_version_major,
-+ &bmc->ipmi_version_minor);
-+
-+ /* finally add the new bmc data to the bmc data list */
-+ list_add_tail(&bmc->list, &driver_data.bmc_data);
-+ driver_data.interfaces++;
-+
-+ printk(KERN_INFO
-+ "ipmisensors: Registered IPMI %d.%d BMC over interface %d\n",
-+ bmc->ipmi_version_major,
-+ bmc->ipmi_version_minor, bmc->interface_id);
-+
-+ /* Send a reserve SDR command to the bmc */
-+ ipmisensors_reserve_sdr(bmc);
-+
-+ /* initialize the bmc's update work struct */
-+ INIT_DELAYED_WORK(&bmc->update_work, ipmisensors_update_bmc);
-+}
-+
-+/**
-+ * Callback for when an IPMI BMC is gone. Interface indpendent callback created
-+ * for flexibility in adding new types of interface callbacks in future.
-+ *
-+ * @ipmi_intf: The IPMI interface number.
-+ */
-+static void ipmisensors_unregister_bmc(int ipmi_intf)
-+{
-+ struct ipmisensors_bmc_data *cursor, *next;
-+
-+ /* find and free the ipmisensors_bmc_data struct */
-+ list_for_each_entry_safe(cursor, next, &driver_data.bmc_data, list) {
-+ if (cursor->interface_id == ipmi_intf) {
-+ list_del(&cursor->list);
-+ printk(KERN_DEBUG
-+ "ipmisensors: cancelling queued work\n");
-+ /* cancel update work queued for this bmc */
-+ cancel_delayed_work(&cursor->update_work);
-+ printk(KERN_DEBUG
-+ "ipmisensors: waiting for update to finish\n");
-+ /* wait for readings to finish */
-+ while (cursor->state != STATE_DONE) ;
-+
-+ device_remove_file(cursor->dev,
-+ &cursor->alarms_attr.dev_attr);
-+ device_remove_file(cursor->dev,
-+ &cursor->update_attr.dev_attr);
-+ hwmon_device_unregister(cursor->class_dev);
-+ ipmisensors_sdr_cleanup(cursor);
-+ ipmi_destroy_user(cursor->user);
-+
-+ printk(KERN_INFO
-+ "ipmisensors: Unegistered IPMI interface %d\n",
-+ cursor->interface_id);
-+
-+ kfree(cursor);
-+ driver_data.interfaces--;
-+ }
-+ }
-+
-+}
-+
-+/**
-+ * Unregister all registered bmcs.
-+ */
-+static void ipmisensors_unregister_bmc_all(void)
-+{
-+ struct ipmisensors_bmc_data *cursor, *next;
-+
-+ /* find and free the ipmisensors_bmc_data struct */
-+ list_for_each_entry_safe(cursor, next, &driver_data.bmc_data, list) {
-+ list_del(&cursor->list);
-+
-+ /* cancel update work queued for this bmc */
-+ printk(KERN_DEBUG "ipmisensors: cancelling queued work\n");
-+ cancel_delayed_work(&cursor->update_work);
-+
-+ printk(KERN_DEBUG
-+ "ipmisensors: waiting for update to finish\n");
-+ /* wait for readings to finish */
-+ while (cursor->state != STATE_DONE) ;
-+
-+ device_remove_file(cursor->dev, &cursor->alarms_attr.dev_attr);
-+ device_remove_file(cursor->dev, &cursor->update_attr.dev_attr);
-+ hwmon_device_unregister(cursor->class_dev);
-+ ipmisensors_sdr_cleanup(cursor);
-+ ipmi_destroy_user(cursor->user);
-+
-+ printk(KERN_INFO
-+ "ipmisensors: Unegistered IPMI interface %d\n",
-+ cursor->interface_id);
-+
-+ kfree(cursor);
-+ }
-+
-+ driver_data.interfaces = 0;
-+}
-+
-+/**
-+ * Callback for when a new IPMI SMI type interface is found.
-+ *
-+ * @if_num: The IPMI interface number.
-+ */
-+static void ipmisensors_new_smi(int if_num, struct device *dev)
-+{
-+ struct ipmi_addr smi_address = {
-+ IPMI_SYSTEM_INTERFACE_ADDR_TYPE,
-+ IPMI_BMC_CHANNEL,
-+ {0},
-+ };
-+
-+ /* calls the generic new interface function */
-+ ipmisensors_register_bmc(if_num, &smi_address);
-+}
-+
-+/**
-+ * Callback for when an exisiting IPMI SMI type interface is gone.
-+ *
-+ * @if_num: The IPMI interface number.
-+ */
-+static void ipmisensors_smi_gone(int if_num)
-+{
-+ if (driver_data.interfaces > 0) {
-+ ipmisensors_unregister_bmc(if_num);
-+ }
-+}
-+
-+/**
-+ * Initialize the module.
-+ */
-+static int __init ipmisensors_init(void)
-+{
-+ int error;
-+ printk(KERN_INFO "ipmisensors - IPMI BMC sensors interface\n");
-+
-+ /* init cache managers */
-+ driver_data.sdrdata_cache =
-+ kmem_cache_create("ipmisensors_sdrdata", sizeof(struct sdrdata), 0,
-+ 0, NULL, NULL);
-+ driver_data.sysfsattr_cache =
-+ kmem_cache_create("ipmisensors_sysfsattr",
-+ sizeof(struct ipmisensors_device_attribute), 0, 0,
-+ NULL, NULL);
-+
-+ if (!driver_data.sdrdata_cache || !driver_data.sysfsattr_cache) {
-+ if (driver_data.sdrdata_cache)
-+ kmem_cache_destroy(driver_data.sdrdata_cache);
-+ if (driver_data.sysfsattr_cache)
-+ kmem_cache_destroy(driver_data.sysfsattr_cache);
-+ return -ENOMEM;
-+ }
-+
-+ /* register IPMI interface callback(s) */
-+ error = ipmi_smi_watcher_register(&driver_data.smi_watcher);
-+ if (error) {
-+ printk(KERN_WARNING
-+ "ipmisensors: can't register smi watcher\n");
-+ return error;
-+ }
-+
-+ /* create work queue, keep it simple, single-threaded */
-+ ipmisensors_workqueue =
-+ create_singlethread_workqueue("ipmisensors_workqueue");
-+
-+ return 0;
-+}
-+
-+/**
-+ * Cleanup
-+ */
-+static void ipmisensors_cleanup(void)
-+{
-+ /* start cleanup */
-+ cleanup = 1;
-+
-+ /* unregister bmcs */
-+ printk(KERN_DEBUG "ipmisensors: unregister bmcs\n");
-+ ipmi_smi_watcher_unregister(&driver_data.smi_watcher);
-+ ipmisensors_unregister_bmc_all();
-+
-+ /* flush & destroy work queue */
-+ printk(KERN_DEBUG "ipmisensors: destroy workqueue\n");
-+ flush_workqueue(ipmisensors_workqueue);
-+ destroy_workqueue(ipmisensors_workqueue);
-+
-+ /* remove cache managers */
-+ if (driver_data.sdrdata_cache)
-+ kmem_cache_destroy(driver_data.sdrdata_cache);
-+ if (driver_data.sysfsattr_cache)
-+ kmem_cache_destroy(driver_data.sysfsattr_cache);
-+}
-+
-+/**
-+ * Cleanup and exit the module
-+ */
-+static void __exit ipmisensors_exit(void)
-+{
-+ ipmisensors_cleanup();
-+ printk(KERN_DEBUG "ipmisensors: cleanup finished\n");
-+}
-+
-+MODULE_AUTHOR("Yani Ioannou <yani.ioannou@gmail.com>");
-+MODULE_DESCRIPTION("IPMI BMC sensors");
-+MODULE_LICENSE("GPL");
-+
-+module_init(ipmisensors_init);
-+module_exit(ipmisensors_exit);
-diff -rduNp linux-2.6.22.1.oorig2/drivers/hwmon/ipmisensors.h linux-2.6.22.1/drivers/hwmon/ipmisensors.h
---- linux-2.6.22.1.oorig2/drivers/hwmon/ipmisensors.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.22.1/drivers/hwmon/ipmisensors.h 2007-07-24 14:22:26.000000000 +0200
-@@ -0,0 +1,240 @@
-+/*
-+ * ipmisensors.h - lm_sensors interface to IPMI sensors.
-+ *
-+ * Copyright (C) 2004-2006 Yani Ioannou <yani.ioannou@gmail.com>
-+ *
-+ * Adapted from bmcsensors (lm-sensors for linux 2.4)
-+ * bmcsensors (C) Mark D. Studebaker <mdsxyz123@yahoo.com>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License as published by
-+ * the Free Software Foundation; either version 2 of the License, or
-+ * (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-+ */
-+
-+#include <linux/ipmi.h>
-+#include <linux/list.h>
-+#include <linux/slab.h>
-+#include <linux/workqueue.h>
-+
-+/* SDR defs */
-+#define STYPE_TEMP 0x01
-+#define STYPE_VOLT 0x02
-+#define STYPE_CURR 0x03
-+#define STYPE_FAN 0x04
-+
-+#define SDR_LIMITS 8
-+#define SDR_MAX_ID_LENGTH 16
-+#define SDR_MAX_UNPACKED_ID_LENGTH ((SDR_MAX_ID_LENGTH * 4 / 3) + 2)
-+
-+/* the last sensor type we are interested in */
-+#define STYPE_MAX 4
-+
-+#define IPMI_SDR_SIZE 67
-+#define IPMI_CHUNK_SIZE 16
-+
-+#define MAX_FILENAME_LENGTH 30
-+
-+struct ipmisensors_device_attribute {
-+ struct device_attribute dev_attr;
-+ struct sdrdata *sdr;
-+};
-+#define to_ipmisensors_dev_attr(_dev_attr) \
-+ container_of(_dev_attr, struct ipmisensors_device_attribute, dev_attr)
-+
-+#define IPMISENSORS_DEVICE_ATTR(_name,_mode,_show,_store,_index) \
-+struct ipmisensors_attribute sensor_dev_attr_##_name = { \
-+ .dev_attr = __ATTR(_name,_mode,_show,_store), \
-+ .index = _index, \
-+}
-+
-+struct ipmisensors_bmc_device_attribute {
-+ struct device_attribute dev_attr;
-+ struct ipmisensors_bmc_data *bmc;
-+};
-+#define to_ipmisensors_bmc_dev_attr(_dev_attr) \
-+ container_of(_dev_attr, struct ipmisensors_bmc_device_attribute, dev_attr)
-+
-+/**
-+ * &struct_sdrdata stores the IPMI Sensor Data Record (SDR) data, as recieved from the BMC, along with the corresponding sysfs attributes
-+ */
-+struct sdrdata {
-+ struct list_head list;
-+ /* retrieved from SDR, not expected to change */
-+ /* Sensor Type Code */
-+ u8 stype;
-+ u8 number;
-+ /* Sensor Capability Code */
-+ u8 capab;
-+ u16 thresh_mask;
-+ u8 format;
-+ u8 linear;
-+ s16 m;
-+ s16 b;
-+ u8 k;
-+ u8 nominal;
-+ u8 limits[SDR_LIMITS];
-+ /* index into limits for reported upper and lower limit */
-+ int lim1, lim2;
-+ u8 lim1_write, lim2_write;
-+ u8 string_type;
-+ u8 id_length;
-+ u8 id[SDR_MAX_ID_LENGTH];
-+ /* retrieved from reading */
-+ u8 reading;
-+ u8 status;
-+ u8 thresholds;
-+ /* sensor's bmc */
-+ struct ipmisensors_bmc_data *bmc;
-+ /* sysfs entries */
-+ struct ipmisensors_device_attribute attr;
-+ char *attr_name;
-+ struct ipmisensors_device_attribute attr_min;
-+ char *attr_min_name;
-+ struct ipmisensors_device_attribute attr_max;
-+ char *attr_max_name;
-+ struct ipmisensors_device_attribute attr_label;
-+ char *attr_label_name;
-+
-+};
-+
-+/**
-+ * &struct_ipmisensors_data stores the data for the ipmisensors driver.
-+ */
-+struct ipmisensors_data {
-+ /* Driver struct */
-+ char *driver_name;
-+
-+ /* Linked list of ipmisensors_bmc_data structs, one for each BMC */
-+ struct list_head bmc_data;
-+
-+ /* Number of ipmi interfaces (and hence ipmisensors_data structs). */
-+ int interfaces;
-+
-+ /* IPMI kernel interface - SMI watcher */
-+ struct ipmi_smi_watcher smi_watcher;
-+
-+ /* IPMI kernel interface - user handlers */
-+ struct ipmi_user_hndl ipmi_hndlrs;
-+
-+ /* Cache manager for sdrdata cache */
-+ struct kmem_cache *sdrdata_cache;
-+
-+ /* Cache manager for ipmi_sensor_device_attribute cache */
-+ struct kmem_cache *sysfsattr_cache;
-+};
-+
-+/**
-+ * &states: enumeration of state codes for a bmc specific ipmisensors
-+ */
-+enum states {
-+ STATE_INIT,
-+ STATE_RESERVE,
-+ STATE_SDR,
-+ STATE_SDRPARTIAL,
-+ STATE_READING,
-+ STATE_UNCANCEL,
-+ STATE_SYSTABLE,
-+ STATE_DONE
-+};
-+
-+/**
-+ * &struct_ipmisensors_bmc_data stores the data for a particular IPMI BMC.
-+ */
-+struct ipmisensors_bmc_data {
-+ struct list_head list;
-+
-+ /* The IPMI interface number */
-+ int interface_id;
-+
-+ /* The IPMI address */
-+ struct ipmi_addr address;
-+
-+ /* List of sdrdata structs (sdrs) recieved from the BMC */
-+ struct list_head sdrs;
-+
-+ /* Count of the number of sdrs stored in the sdr list */
-+ int sdr_count;
-+
-+ /* next message id */
-+ int msgid;
-+
-+ /* The ipmi interface 'user' used to access this particular bmc */
-+ ipmi_user_t user;
-+
-+ /* BMC IPMI Version (major) */
-+ unsigned char ipmi_version_major;
-+
-+ /* BMC IPMI Version (minor) */
-+ unsigned char ipmi_version_minor;
-+
-+ /* The size of the SDR request message */
-+ int ipmi_sdr_partial_size;
-+
-+ /* transmit message buffer */
-+ struct kernel_ipmi_msg tx_message;
-+
-+ /* ipmi transmited data buffer */
-+ unsigned char tx_msg_data[IPMI_MAX_MSG_LENGTH + 50]; /* why the +50 in bmcsensors? */
-+
-+ /* ipmi recieved data buffer */
-+ unsigned char rx_msg_data[IPMI_MAX_MSG_LENGTH + 50];
-+
-+ /* current recieve buffer offset */
-+ int rx_msg_data_offset;
-+
-+ /* The id of then next SDR record to read during update cycle */
-+ u16 nextrecord;
-+
-+ /* BMC SDR Reservation ID */
-+ u16 resid;
-+
-+ /* Alarm status */
-+ u8 alarms;
-+
-+ /* The cumalative error count for this bmc */
-+ int errorcount;
-+
-+ /* The current state of this bmc w.r.t. ipmisensors (see enum states) */
-+ int state;
-+
-+ /* The current sdr for which a reading is pending */
-+ struct sdrdata *current_sdr;
-+
-+ /* The BMC's device struct */
-+ struct device *dev;
-+
-+ /* hwmon class device */
-+ struct class_device *class_dev;
-+
-+ /* hwmon device name */
-+ struct device_attribute name_attr;
-+
-+ /* alarms attribute */
-+ struct ipmisensors_bmc_device_attribute alarms_attr;
-+
-+ /* update_period attribute */
-+ struct ipmisensors_bmc_device_attribute update_attr;
-+
-+ /* lower bound on time between updates (in seconds) */
-+ unsigned int update_period;
-+
-+ /* semaphore used to do a headcount of the SDR readings we are waiting
-+ * on in a given bmc update */
-+ struct semaphore update_semaphore;
-+
-+ /* bmc's work struct for updating sensors */
-+ struct delayed_work update_work;
-+
-+ /* bmc's work struct for building the sysfs workqueue */
-+ struct work_struct sysfs_work;
-+};
-diff -rduNp linux-2.6.22.1.oorig2/include/linux/ipmi.h linux-2.6.22.1/include/linux/ipmi.h
---- linux-2.6.22.1.oorig2/include/linux/ipmi.h 2007-07-10 20:56:30.000000000 +0200
-+++ linux-2.6.22.1/include/linux/ipmi.h 2007-07-24 14:22:26.000000000 +0200
-@@ -300,6 +300,9 @@ int ipmi_create_user(unsigned int
- safe, too. */
- int ipmi_destroy_user(ipmi_user_t user);
-
-+/* Get the IPMI BMC's device struct */
-+struct device *ipmi_get_bmcdevice(int ipmi_intf);
-+
- /* Get the IPMI version of the BMC we are talking to. */
- void ipmi_get_version(ipmi_user_t user,
- unsigned char *major,
-diff -rduNp linux-2.6.22.1.oorig2/include/linux/ipmi_msgdefs.h linux-2.6.22.1/include/linux/ipmi_msgdefs.h
---- linux-2.6.22.1.oorig2/include/linux/ipmi_msgdefs.h 2007-07-10 20:56:30.000000000 +0200
-+++ linux-2.6.22.1/include/linux/ipmi_msgdefs.h 2007-07-24 14:22:26.000000000 +0200
-@@ -45,6 +45,7 @@
-
- #define IPMI_NETFN_APP_REQUEST 0x06
- #define IPMI_NETFN_APP_RESPONSE 0x07
-+#define IPMI_GET_DEVICE_GUID_CMD 0x08
- #define IPMI_GET_DEVICE_ID_CMD 0x01
- #define IPMI_COLD_RESET_CMD 0x02
- #define IPMI_WARM_RESET_CMD 0x03
-@@ -57,6 +58,11 @@
- #define IPMI_GET_BMC_GLOBAL_ENABLES_CMD 0x2f
- #define IPMI_READ_EVENT_MSG_BUFFER_CMD 0x35
- #define IPMI_GET_CHANNEL_INFO_CMD 0x42
-+#define IPMI_RESERVE_SDR 0x22
-+#define IPMI_GET_SDR 0x23
-+#define IPMI_GET_SENSOR_STATE_READING 0x2D
-+#define IPMI_SET_SENSOR_HYSTERESIS 0x24
-+#define IPMI_SET_SENSOR_THRESHOLD 0x26
-
- #define IPMI_NETFN_STORAGE_REQUEST 0x0a
- #define IPMI_NETFN_STORAGE_RESPONSE 0x0b
-@@ -79,10 +85,13 @@
- #define IPMI_NODE_BUSY_ERR 0xc0
- #define IPMI_INVALID_COMMAND_ERR 0xc1
- #define IPMI_TIMEOUT_ERR 0xc3
-+#define IPMI_INVALID_RESERVATION_ID 0xc5
- #define IPMI_ERR_MSG_TRUNCATED 0xc6
- #define IPMI_REQ_LEN_INVALID_ERR 0xc7
- #define IPMI_REQ_LEN_EXCEEDED_ERR 0xc8
- #define IPMI_NOT_IN_MY_STATE_ERR 0xd5 /* IPMI 2.0 */
-+#define IPMI_ERR_RETURNING_REQ_BYTES 0xca
-+#define IPMI_ERR_PROVIDING_RESPONSE 0xce
- #define IPMI_LOST_ARBITRATION_ERR 0x81
- #define IPMI_BUS_ERR 0x82
- #define IPMI_NAK_ON_WRITE_ERR 0x83
projects / buildroot.git / commitdiff