| /* 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__ */ |
