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/* 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__ */
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