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-rw-r--r--drivers/misc/ibmasm/dot_command.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/misc/ibmasm/dot_command.h b/drivers/misc/ibmasm/dot_command.h
new file mode 100644
index 0000000000..e03399ebe2
--- /dev/null
+++ b/drivers/misc/ibmasm/dot_command.h
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * IBM ASM Service Processor Device Driver
+ *
+ * Copyright (C) IBM Corporation, 2004
+ *
+ * Author: Max Asböck <amax@us.ibm.com>
+ */
+
+#ifndef __DOT_COMMAND_H__
+#define __DOT_COMMAND_H__
+
+/*
+ * dot commands are the protocol used to communicate with the service
+ * processor.
+ * They consist of header, a command of variable length and data of
+ * variable length.
+ */
+
+/* dot command types */
+#define sp_write 0
+#define sp_write_next 1
+#define sp_read 2
+#define sp_read_next 3
+#define sp_command_response 4
+#define sp_event 5
+#define sp_heartbeat 6
+
+#pragma pack(1)
+struct dot_command_header {
+ u8 type;
+ u8 command_size;
+ u16 data_size;
+ u8 status;
+ u8 reserved;
+};
+#pragma pack()
+
+static inline size_t get_dot_command_size(void *buffer)
+{
+ struct dot_command_header *cmd = (struct dot_command_header *)buffer;
+ return sizeof(struct dot_command_header) + cmd->command_size + cmd->data_size;
+}
+
+static inline unsigned int get_dot_command_timeout(void *buffer)
+{
+ struct dot_command_header *header = (struct dot_command_header *)buffer;
+ unsigned char *cmd = buffer + sizeof(struct dot_command_header);
+
+ /* dot commands 6.3.1, 7.1 and 8.x need a longer timeout */
+
+ if (header->command_size == 3) {
+ if ((cmd[0] == 6) && (cmd[1] == 3) && (cmd[2] == 1))
+ return IBMASM_CMD_TIMEOUT_EXTRA;
+ } else if (header->command_size == 2) {
+ if ((cmd[0] == 7) && (cmd[1] == 1))
+ return IBMASM_CMD_TIMEOUT_EXTRA;
+ if (cmd[0] == 8)
+ return IBMASM_CMD_TIMEOUT_EXTRA;
+ }
+ return IBMASM_CMD_TIMEOUT_NORMAL;
+}
+
+#endif /* __DOT_COMMAND_H__ */