parisc/kernel/pdc_chassis.c

1 // SPDX-License-Identifier: GPL-2.0-only
3  *    interfaces to Chassis Codes via PDC (firmware)
6  *    Copyright (C) 2002-2006 Thibaut VARENE <varenet@parisc-linux.org>
20 #include <linux/init.h>
21 #include <linux/module.h>
22 #include <linux/kernel.h>
23 #include <linux/panic_notifier.h>
24 #include <linux/reboot.h>
25 #include <linux/notifier.h>
26 #include <linux/cache.h>
27 #include <linux/proc_fs.h>
28 #include <linux/seq_file.h>
43  * pdc_chassis_setup() - Enable/disable pdc_chassis code at boot time.
58  * pdc_chassis_checkold() - Checks for old PDC_CHASSIS compatibility
82  * pdc_chassis_panic_event() - Called by the panic handler.
84  * @event: unused
91 		        unsigned long event, void *ptr)  in pdc_chassis_panic_event()  argument
105  * pdc_chassis_reboot_event() - Called by the reboot handler.
107  * @event: unused
114 		        unsigned long event, void *ptr)  in pdc_chassis_reboot_event()  argument
129  * parisc_pdc_chassis_init() - Called at boot time.
139 		printk(KERN_INFO "Enabling %s chassis codes support v%s\n",  in parisc_pdc_chassis_init()
155  * pdc_chassis_send_status() - Sends a predefined message to the chassis,
162  * returns 0 if no error, -1 if no supported PDC is present or invalid message,
165  * For a list of predefined messages, see asm-parisc/pdc_chassis.h
205 					retval = -1;  in pdc_chassis_send_status()
207 		} else retval = -1;  in pdc_chassis_send_status()
233 					retval = -1;  in pdc_chassis_send_status()
235 		} else retval = -1;  in pdc_chassis_send_status()
240 	if (retval != -1 && IS_ENABLED(CONFIG_CHASSIS_LCD_LED))  in pdc_chassis_send_status()
255 		return -EIO;  in pdc_chassis_warn_show()