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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/misc/ibmasm/ibmasm.h
downloadblackbird-op-linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
blackbird-op-linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/misc/ibmasm/ibmasm.h')
-rw-r--r--drivers/misc/ibmasm/ibmasm.h229
1 files changed, 229 insertions, 0 deletions
diff --git a/drivers/misc/ibmasm/ibmasm.h b/drivers/misc/ibmasm/ibmasm.h
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index 000000000000..6fec7fd8cd1a
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+++ b/drivers/misc/ibmasm/ibmasm.h
@@ -0,0 +1,229 @@
+
+/*
+ * 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/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/wait.h>
+#include <linux/spinlock.h>
+#include <linux/slab.h>
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+
+/* Driver identification */
+#define DRIVER_NAME "ibmasm"
+#define DRIVER_VERSION "0.4"
+#define DRIVER_AUTHOR "Max Asbock"
+#define DRIVER_DESC "IBM ASM Service Processor Driver"
+
+#define err(msg) printk(KERN_ERR "%s: " msg "\n", DRIVER_NAME)
+#define info(msg) printk(KERN_INFO "%s: " msg "\n", DRIVER_NAME)
+
+
+#define IBMASM_CMD_PENDING 0
+#define IBMASM_CMD_COMPLETE 1
+#define IBMASM_CMD_FAILED 2
+
+#define IBMASM_CMD_TIMEOUT_NORMAL 45
+#define IBMASM_CMD_TIMEOUT_EXTRA 240
+
+#define IBMASM_CMD_MAX_BUFFER_SIZE 0x4000
+
+#define REVERSE_HEARTBEAT_TIMEOUT 120
+
+#define HEARTBEAT_BUFFER_SIZE 0x400
+
+#ifdef IA64
+#define IBMASM_DRIVER_VPD "Lin64 6.08 "
+#else
+#define IBMASM_DRIVER_VPD "Lin32 6.08 "
+#endif
+
+#define SYSTEM_STATE_OS_UP 5
+#define SYSTEM_STATE_OS_DOWN 4
+
+#define IBMASM_NAME_SIZE 16
+
+#define IBMASM_NUM_EVENTS 10
+#define IBMASM_EVENT_MAX_SIZE 2048u
+
+
+struct command {
+ struct list_head queue_node;
+ wait_queue_head_t wait;
+ unsigned char *buffer;
+ size_t buffer_size;
+ int status;
+ struct kobject kobj;
+};
+#define to_command(c) container_of(c, struct command, kobj)
+
+static inline void command_put(struct command *cmd)
+{
+ kobject_put(&cmd->kobj);
+}
+
+static inline void command_get(struct command *cmd)
+{
+ kobject_get(&cmd->kobj);
+}
+
+
+struct ibmasm_event {
+ unsigned int serial_number;
+ unsigned int data_size;
+ unsigned char data[IBMASM_EVENT_MAX_SIZE];
+};
+
+struct event_buffer {
+ struct ibmasm_event events[IBMASM_NUM_EVENTS];
+ unsigned int next_serial_number;
+ unsigned int next_index;
+ struct list_head readers;
+};
+
+struct event_reader {
+ unsigned int next_serial_number;
+ wait_queue_head_t wait;
+ struct list_head node;
+ unsigned int data_size;
+ unsigned char data[IBMASM_EVENT_MAX_SIZE];
+};
+
+struct reverse_heartbeat {
+ wait_queue_head_t wait;
+ unsigned int stopped;
+};
+
+
+/* remote console events */
+struct mouse_event {
+ long x;
+ long y;
+ unsigned char buttons;
+ unsigned char transitions;
+};
+
+struct keyboard_event {
+ unsigned long key_code;
+ unsigned char key_down;
+};
+
+struct remote_event {
+ unsigned long type;
+ union {
+ struct mouse_event mouse;
+ struct keyboard_event keyboard;
+ } data;
+};
+
+#define DRIVER_REMOTE_QUEUE_SIZE 240
+
+struct remote_queue {
+ struct remote_event *start;
+ struct remote_event *end;
+ struct remote_event *reader;
+ struct remote_event *writer;
+ unsigned int size;
+ int open;
+ wait_queue_head_t wait;
+};
+
+
+struct service_processor {
+ struct list_head node;
+ spinlock_t lock;
+ void __iomem *base_address;
+ unsigned int irq;
+ struct command *current_command;
+ struct command *heartbeat;
+ struct list_head command_queue;
+ struct event_buffer *event_buffer;
+ char dirname[IBMASM_NAME_SIZE];
+ char devname[IBMASM_NAME_SIZE];
+ unsigned int number;
+ struct remote_queue remote_queue;
+ int serial_line;
+ struct device *dev;
+};
+
+/* command processing */
+extern struct command *ibmasm_new_command(size_t buffer_size);
+extern void ibmasm_exec_command(struct service_processor *sp, struct command *cmd);
+extern void ibmasm_wait_for_response(struct command *cmd, int timeout);
+extern void ibmasm_receive_command_response(struct service_processor *sp, void *response, size_t size);
+
+/* event processing */
+extern int ibmasm_event_buffer_init(struct service_processor *sp);
+extern void ibmasm_event_buffer_exit(struct service_processor *sp);
+extern void ibmasm_receive_event(struct service_processor *sp, void *data, unsigned int data_size);
+extern void ibmasm_event_reader_register(struct service_processor *sp, struct event_reader *reader);
+extern void ibmasm_event_reader_unregister(struct service_processor *sp, struct event_reader *reader);
+extern int ibmasm_get_next_event(struct service_processor *sp, struct event_reader *reader);
+
+/* heartbeat - from SP to OS */
+extern void ibmasm_register_panic_notifier(void);
+extern void ibmasm_unregister_panic_notifier(void);
+extern int ibmasm_heartbeat_init(struct service_processor *sp);
+extern void ibmasm_heartbeat_exit(struct service_processor *sp);
+extern void ibmasm_receive_heartbeat(struct service_processor *sp, void *message, size_t size);
+
+/* reverse heartbeat - from OS to SP */
+extern void ibmasm_init_reverse_heartbeat(struct service_processor *sp, struct reverse_heartbeat *rhb);
+extern int ibmasm_start_reverse_heartbeat(struct service_processor *sp, struct reverse_heartbeat *rhb);
+extern void ibmasm_stop_reverse_heartbeat(struct reverse_heartbeat *rhb);
+
+/* dot commands */
+extern void ibmasm_receive_message(struct service_processor *sp, void *data, int data_size);
+extern int ibmasm_send_driver_vpd(struct service_processor *sp);
+extern int ibmasm_send_os_state(struct service_processor *sp, int os_state);
+
+/* low level message processing */
+extern int ibmasm_send_i2o_message(struct service_processor *sp);
+extern irqreturn_t ibmasm_interrupt_handler(int irq, void * dev_id, struct pt_regs *regs);
+
+/* remote console */
+extern void ibmasm_handle_mouse_interrupt(struct service_processor *sp);
+extern int ibmasm_init_remote_queue(struct service_processor *sp);
+extern void ibmasm_free_remote_queue(struct service_processor *sp);
+extern void ibmasm_advance_reader(struct remote_queue *q, unsigned int n);
+extern size_t ibmasm_events_available(struct remote_queue *q);
+
+/* file system */
+extern int ibmasmfs_register(void);
+extern void ibmasmfs_unregister(void);
+extern void ibmasmfs_add_sp(struct service_processor *sp);
+
+/* uart */
+#ifdef CONFIG_SERIAL_8250
+extern void ibmasm_register_uart(struct service_processor *sp);
+extern void ibmasm_unregister_uart(struct service_processor *sp);
+#else
+#define ibmasm_register_uart(sp) do { } while(0)
+#define ibmasm_unregister_uart(sp) do { } while(0)
+#endif
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