* Copyright 1999 The Puffin Group, (Alex deVries, David Kennedy)
* Copyright 2003 Grant Grundler <grundler parisc-linux org>
* Copyright 2003,2004 Ryan Bradetich <rbrad@parisc-linux.org>
- * Copyright 2004 Thibaut VARENE <varenet@parisc-linux.org>
+ * Copyright 2004,2006 Thibaut VARENE <varenet@parisc-linux.org>
*
* 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
#endif
/**
- * pdc_chassis_disp - Updates display
+ * pdc_chassis_disp - Updates chassis code
* @retval: -1 on error, 0 on success
- *
- * Works on old PDC only (E class, others?)
*/
int pdc_chassis_disp(unsigned long disp)
{
return retval;
}
+/**
+ * pdc_chassis_warn - Fetches chassis warnings
+ * @retval: -1 on error, 0 on success
+ */
+int pdc_chassis_warn(unsigned long *warn)
+{
+ int retval = 0;
+
+ spin_lock_irq(&pdc_lock);
+ retval = mem_pdc_call(PDC_CHASSIS, PDC_CHASSIS_WARN, __pa(pdc_result));
+ *warn = pdc_result[0];
+ spin_unlock_irq(&pdc_lock);
+
+ return retval;
+}
+
/**
* pdc_coproc_cfg - To identify coprocessors attached to the processor.
* @pdc_coproc_info: Return buffer address.
/*
- * interfaces to log Chassis Codes via PDC (firmware)
+ * interfaces to Chassis Codes via PDC (firmware)
*
* Copyright (C) 2002 Laurent Canet <canetl@esiee.fr>
- * Copyright (C) 2002-2004 Thibaut VARENE <varenet@parisc-linux.org>
+ * Copyright (C) 2002-2006 Thibaut VARENE <varenet@parisc-linux.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2, as
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * TODO: poll chassis warns, trigger (configurable) machine shutdown when
+ * needed.
*/
#undef PDC_CHASSIS_DEBUG
#include <linux/reboot.h>
#include <linux/notifier.h>
#include <linux/cache.h>
+#include <linux/proc_fs.h>
#include <asm/pdc_chassis.h>
#include <asm/processor.h>
#ifdef CONFIG_PDC_CHASSIS
-static int pdc_chassis_old __read_mostly = 0;
static unsigned int pdc_chassis_enabled __read_mostly = 1;
* Currently, only E class and A180 are known to work with this.
* Inspired by Christoph Plattner
*/
-
+#if 0
static void __init pdc_chassis_checkold(void)
{
switch(CPU_HVERSION) {
case 0x482: /* E45 */
case 0x483: /* E55 */
case 0x516: /* A180 */
- pdc_chassis_old = 1;
break;
default:
}
DPRINTK(KERN_DEBUG "%s: pdc_chassis_checkold(); pdc_chassis_old = %d\n", __FILE__, pdc_chassis_old);
}
-
+#endif
/**
* pdc_chassis_panic_event() - Called by the panic handler.
DPRINTK(KERN_DEBUG "%s: parisc_pdc_chassis_init()\n", __FILE__);
/* Let see if we have something to handle... */
- /* Check for PDC_PAT or old LED Panel */
- pdc_chassis_checkold();
+ /* Check for PDC_PAT */
if (is_pdc_pat()) {
printk(KERN_INFO "Enabling PDC_PAT chassis codes support.\n");
handle = 1;
}
- else if (unlikely(pdc_chassis_old)) {
- printk(KERN_INFO "Enabling old style chassis LED panel support.\n");
+ else {
+ printk(KERN_INFO "Enabling regular chassis codes support.\n");
handle = 1;
}
}
} else retval = -1;
#else
- if (unlikely(pdc_chassis_old)) {
+ if (1) {
switch (message) {
case PDC_CHASSIS_DIRECT_BSTART:
+ retval = pdc_chassis_disp(PDC_CHASSIS_DISP_DATA(OSTAT_INIT));
+ break;
+
case PDC_CHASSIS_DIRECT_BCOMPLETE:
retval = pdc_chassis_disp(PDC_CHASSIS_DISP_DATA(OSTAT_RUN));
break;
#endif /* CONFIG_PDC_CHASSIS */
return retval;
}
+
+#ifdef CONFIG_PDC_CHASSIS_WARN
+#ifdef CONFIG_PROC_FS
+static int pdc_chassis_warn_pread(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ char *out = page;
+ int len, ret;
+ unsigned long warn;
+ u32 warnreg;
+
+ ret = pdc_chassis_warn(&warn);
+ if (ret != PDC_OK)
+ return -EIO;
+
+ warnreg = (warn & 0xFFFFFFFF);
+
+ if ((warnreg >> 24) & 0xFF)
+ out += sprintf(out, "Chassis component failure! (eg fan or PSU): 0x%.2x\n", ((warnreg >> 24) & 0xFF));
+
+ out += sprintf(out, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK");
+ out += sprintf(out, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK");
+ out += sprintf(out, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK");
+
+ len = out - page - off;
+ if (len < count) {
+ *eof = 1;
+ if (len <= 0) return 0;
+ } else {
+ len = count;
+ }
+ *start = page + off;
+ return len;
+}
+
+static int __init pdc_chassis_create_procfs(void)
+{
+ printk(KERN_INFO "Enabling PDC chassis warnings support.\n");
+ create_proc_read_entry("chassis", 0400, NULL, pdc_chassis_warn_pread,
+ NULL);
+ return 0;
+}
+
+__initcall(pdc_chassis_create_procfs);
+
+#endif /* CONFIG_PROC_FS */
+#endif /* CONFIG_PDC_CHASSIS_WARN */
If unsure, say Y.
config PDC_CHASSIS
- bool "PDC chassis State Panel support"
+ bool "PDC chassis state codes support"
default y
help
- Say Y here if you want to enable support for the LED State front
- panel as found on E class, and support for the GSP Virtual Front
- Panel (LED State and message logging) as found on high end
- servers such as A, L and N-class.
-
- This has nothing to do with Chassis LCD and LED support.
+ Say Y here if you want to enable support for Chassis codes.
+ That includes support for LED State front panel as found on E
+ class, and support for the GSP Virtual Front Panel (LED State and
+ message logging) as found on high end servers such as A, L and
+ N-class.
+ This driver will also display progress messages on LCD display,
+ such as "INI", "RUN" and "FLT", and might thus clobber messages
+ shown by the LED/LCD driver.
+ This driver updates the state panel (LED and/or LCD) upon system
+ state change (eg: boot, shutdown or panic).
If unsure, say Y.
+
+config PDC_CHASSIS_WARN
+ bool "PDC chassis warnings support"
+ depends on PROC_FS
+ default y
+ help
+ Say Y here if you want to enable support for Chassis warnings.
+ This will add a proc entry '/proc/chassis' giving some information
+ about the overall health state of the system.
+ This includes NVRAM battery level, overtemp or failures such as
+ fans or power units.
+
+ If unsure, say Y.
+
+
config PDC_STABLE
tristate "PDC Stable Storage support"
depends on SYSFS
projects / linux-2.6 / commitdiff