/* * SCLP ASCII access driver * * Copyright (c) 2013 Alexander Graf <agraf@suse.de> * * This work is licensed under the terms of the GNU GPL, version 2 or (at * your option) any later version. See the COPYING file in the top-level * directory. */ #ifndef SCLP_H #define SCLP_H /* SCLP command codes */ #define SCLP_CMDW_READ_SCP_INFO 0x00020001 #define SCLP_CMDW_READ_SCP_INFO_FORCED 0x00120001 #define SCLP_CMD_READ_EVENT_DATA 0x00770005 #define SCLP_CMD_WRITE_EVENT_DATA 0x00760005 #define SCLP_CMD_READ_EVENT_DATA 0x00770005 #define SCLP_CMD_WRITE_EVENT_DATA 0x00760005 #define SCLP_CMD_WRITE_EVENT_MASK 0x00780005 /* SCLP response codes */ #define SCLP_RC_NORMAL_READ_COMPLETION 0x0010 #define SCLP_RC_NORMAL_COMPLETION 0x0020 #define SCLP_RC_INVALID_SCLP_COMMAND 0x01f0 #define SCLP_RC_CONTAINED_EQUIPMENT_CHECK 0x0340 #define SCLP_RC_INSUFFICIENT_SCCB_LENGTH 0x0300 #define SCLP_RC_INVALID_FUNCTION 0x40f0 #define SCLP_RC_NO_EVENT_BUFFERS_STORED 0x60f0 #define SCLP_RC_INVALID_SELECTION_MASK 0x70f0 #define SCLP_RC_INCONSISTENT_LENGTHS 0x72f0 #define SCLP_RC_EVENT_BUFFER_SYNTAX_ERROR 0x73f0 #define SCLP_RC_INVALID_MASK_LENGTH 0x74f0 /* Service Call Control Block (SCCB) and its elements */ #define SCCB_SIZE 4096 #define SCLP_VARIABLE_LENGTH_RESPONSE 0x80 #define SCLP_EVENT_BUFFER_ACCEPTED 0x80 #define SCLP_FC_NORMAL_WRITE 0 typedef struct SCCBHeader { uint16_t length; uint8_t function_code; uint8_t control_mask[3]; uint16_t response_code; } __attribute__((packed)) SCCBHeader; #define SCCB_DATA_LEN (SCCB_SIZE - sizeof(SCCBHeader)) typedef struct ReadInfo { SCCBHeader h; uint16_t rnmax; uint8_t rnsize; uint8_t reserved[13]; uint8_t loadparm[LOADPARM_LEN]; } __attribute__((packed)) ReadInfo; typedef struct SCCB { SCCBHeader h; char data[SCCB_DATA_LEN]; } __attribute__((packed)) SCCB; /* SCLP event types */ #define SCLP_EVENT_ASCII_CONSOLE_DATA 0x1a #define SCLP_EVENT_SIGNAL_QUIESCE 0x1d /* SCLP event masks */ #define SCLP_EVENT_MASK_SIGNAL_QUIESCE 0x00000008 #define SCLP_EVENT_MASK_MSG_ASCII 0x00000040 #define SCLP_UNCONDITIONAL_READ 0x00 #define SCLP_SELECTIVE_READ 0x01 typedef struct WriteEventMask { SCCBHeader h; uint16_t _reserved; uint16_t mask_length; uint32_t cp_receive_mask; uint32_t cp_send_mask; uint32_t send_mask; uint32_t receive_mask; } __attribute__((packed)) WriteEventMask; typedef struct EventBufferHeader { uint16_t length; uint8_t type; uint8_t flags; uint16_t _reserved; } __attribute__((packed)) EventBufferHeader; typedef struct WriteEventData { SCCBHeader h; EventBufferHeader ebh; char data[]; } __attribute__((packed)) WriteEventData; typedef struct ReadEventData { SCCBHeader h; EventBufferHeader ebh; uint32_t mask; } __attribute__((packed)) ReadEventData; #define __pa(x) (x) #endif /* SCLP_H */