diff options
Diffstat (limited to 'drivers/misc/ibmasm/dot_command.h')
| -rw-r--r-- | drivers/misc/ibmasm/dot_command.h | 64 |
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__ */ |