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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/drivers/misc/ibmasm/heartbeat.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/drivers/misc/ibmasm/heartbeat.c')
-rw-r--r--ANDROID_3.4.5/drivers/misc/ibmasm/heartbeat.c101
1 files changed, 0 insertions, 101 deletions
diff --git a/ANDROID_3.4.5/drivers/misc/ibmasm/heartbeat.c b/ANDROID_3.4.5/drivers/misc/ibmasm/heartbeat.c
deleted file mode 100644
index 90746378..00000000
--- a/ANDROID_3.4.5/drivers/misc/ibmasm/heartbeat.c
+++ /dev/null
@@ -1,101 +0,0 @@
-
-/*
- * IBM ASM Service Processor Device Driver
- *
- * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright (C) IBM Corporation, 2004
- *
- * Author: Max Asböck <amax@us.ibm.com>
- *
- */
-
-#include <linux/notifier.h>
-#include "ibmasm.h"
-#include "dot_command.h"
-#include "lowlevel.h"
-
-static int suspend_heartbeats = 0;
-
-/*
- * Once the driver indicates to the service processor that it is running
- * - see send_os_state() - the service processor sends periodic heartbeats
- * to the driver. The driver must respond to the heartbeats or else the OS
- * will be rebooted.
- * In the case of a panic the interrupt handler continues to work and thus
- * continues to respond to heartbeats, making the service processor believe
- * the OS is still running and thus preventing a reboot.
- * To prevent this from happening a callback is added the panic_notifier_list.
- * Before responding to a heartbeat the driver checks if a panic has happened,
- * if yes it suspends heartbeat, causing the service processor to reboot as
- * expected.
- */
-static int panic_happened(struct notifier_block *n, unsigned long val, void *v)
-{
- suspend_heartbeats = 1;
- return 0;
-}
-
-static struct notifier_block panic_notifier = { panic_happened, NULL, 1 };
-
-void ibmasm_register_panic_notifier(void)
-{
- atomic_notifier_chain_register(&panic_notifier_list, &panic_notifier);
-}
-
-void ibmasm_unregister_panic_notifier(void)
-{
- atomic_notifier_chain_unregister(&panic_notifier_list,
- &panic_notifier);
-}
-
-
-int ibmasm_heartbeat_init(struct service_processor *sp)
-{
- sp->heartbeat = ibmasm_new_command(sp, HEARTBEAT_BUFFER_SIZE);
- if (sp->heartbeat == NULL)
- return -ENOMEM;
-
- return 0;
-}
-
-void ibmasm_heartbeat_exit(struct service_processor *sp)
-{
- char tsbuf[32];
-
- dbg("%s:%d at %s\n", __func__, __LINE__, get_timestamp(tsbuf));
- ibmasm_wait_for_response(sp->heartbeat, IBMASM_CMD_TIMEOUT_NORMAL);
- dbg("%s:%d at %s\n", __func__, __LINE__, get_timestamp(tsbuf));
- suspend_heartbeats = 1;
- command_put(sp->heartbeat);
-}
-
-void ibmasm_receive_heartbeat(struct service_processor *sp, void *message, size_t size)
-{
- struct command *cmd = sp->heartbeat;
- struct dot_command_header *header = (struct dot_command_header *)cmd->buffer;
- char tsbuf[32];
-
- dbg("%s:%d at %s\n", __func__, __LINE__, get_timestamp(tsbuf));
- if (suspend_heartbeats)
- return;
-
- /* return the received dot command to sender */
- cmd->status = IBMASM_CMD_PENDING;
- size = min(size, cmd->buffer_size);
- memcpy_fromio(cmd->buffer, message, size);
- header->type = sp_write;
- ibmasm_exec_command(sp, cmd);
-}