/* * drivers/s390/char/sclp.h * * S390 version * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation * Author(s): Martin Peschke <mpeschke@de.ibm.com> * Martin Schwidefsky <schwidefsky@de.ibm.com> */ #ifndef __SCLP_H__ #define __SCLP_H__ #include <linux/types.h> #include <linux/list.h> #include <asm/ebcdic.h> /* maximum number of pages concerning our own memory management */ #define MAX_KMEM_PAGES (sizeof(unsigned long) << 3) #define MAX_CONSOLE_PAGES 4 #define EvTyp_OpCmd 0x01 #define EvTyp_Msg 0x02 #define EvTyp_StateChange 0x08 #define EvTyp_PMsgCmd 0x09 #define EvTyp_CntlProgOpCmd 0x20 #define EvTyp_CntlProgIdent 0x0B #define EvTyp_SigQuiesce 0x1D #define EvTyp_VT220Msg 0x1A #define EvTyp_OpCmd_Mask 0x80000000 #define EvTyp_Msg_Mask 0x40000000 #define EvTyp_StateChange_Mask 0x01000000 #define EvTyp_PMsgCmd_Mask 0x00800000 #define EvTyp_CtlProgOpCmd_Mask 0x00000001 #define EvTyp_CtlProgIdent_Mask 0x00200000 #define EvTyp_SigQuiesce_Mask 0x00000008 #define EvTyp_VT220Msg_Mask 0x00000040 #define GnrlMsgFlgs_DOM 0x8000 #define GnrlMsgFlgs_SndAlrm 0x4000 #define GnrlMsgFlgs_HoldMsg 0x2000 #define LnTpFlgs_CntlText 0x8000 #define LnTpFlgs_LabelText 0x4000 #define LnTpFlgs_DataText 0x2000 #define LnTpFlgs_EndText 0x1000 #define LnTpFlgs_PromptText 0x0800 typedef unsigned int sclp_cmdw_t; #define SCLP_CMDW_READDATA 0x00770005 #define SCLP_CMDW_WRITEDATA 0x00760005 #define SCLP_CMDW_WRITEMASK 0x00780005 #define GDS_ID_MDSMU 0x1310 #define GDS_ID_MDSRouteInfo 0x1311 #define GDS_ID_AgUnWrkCorr 0x1549 #define GDS_ID_SNACondReport 0x1532 #define GDS_ID_CPMSU 0x1212 #define GDS_ID_RoutTargInstr 0x154D #define GDS_ID_OpReq 0x8070 #define GDS_ID_TextCmd 0x1320 #define GDS_KEY_SelfDefTextMsg 0x31 typedef u32 sccb_mask_t; /* ATTENTION: assumes 32bit mask !!! */ struct sccb_header { u16 length; u8 function_code; u8 control_mask[3]; u16 response_code; } __attribute__((packed)); struct gds_subvector { u8 length; u8 key; } __attribute__((packed)); struct gds_vector { u16 length; u16 gds_id; } __attribute__((packed)); struct evbuf_header { u16 length; u8 type; u8 flags; u16 _reserved; } __attribute__((packed)); struct sclp_req { struct list_head list; /* list_head for request queueing. */ sclp_cmdw_t command; /* sclp command to execute */ void *sccb; /* pointer to the sccb to execute */ char status; /* status of this request */ int start_count; /* number of SVCs done for this req */ /* Callback that is called after reaching final status. */ void (*callback)(struct sclp_req *, void *data); void *callback_data; }; #define SCLP_REQ_FILLED 0x00 /* request is ready to be processed */ #define SCLP_REQ_QUEUED 0x01 /* request is queued to be processed */ #define SCLP_REQ_RUNNING 0x02 /* request is currently running */ #define SCLP_REQ_DONE 0x03 /* request is completed successfully */ #define SCLP_REQ_FAILED 0x05 /* request is finally failed */ /* function pointers that a high level driver has to use for registration */ /* of some routines it wants to be called from the low level driver */ struct sclp_register { struct list_head list; /* event masks this user is registered for */ sccb_mask_t receive_mask; sccb_mask_t send_mask; /* actually present events */ sccb_mask_t sclp_receive_mask; sccb_mask_t sclp_send_mask; /* called if event type availability changes */ void (*state_change_fn)(struct sclp_register *); /* called for events in cp_receive_mask/sclp_receive_mask */ void (*receiver_fn)(struct evbuf_header *); }; /* externals from sclp.c */ int sclp_add_request(struct sclp_req *req); void sclp_sync_wait(void); int sclp_register(struct sclp_register *reg); void sclp_unregister(struct sclp_register *reg); int sclp_remove_processed(struct sccb_header *sccb); int sclp_deactivate(void); int sclp_reactivate(void); /* useful inlines */ /* VM uses EBCDIC 037, LPAR+native(SE+HMC) use EBCDIC 500 */ /* translate single character from ASCII to EBCDIC */ static inline unsigned char sclp_ascebc(unsigned char ch) { return (MACHINE_IS_VM) ? _ascebc[ch] : _ascebc_500[ch]; } /* translate string from EBCDIC to ASCII */ static inline void sclp_ebcasc_str(unsigned char *str, int nr) { (MACHINE_IS_VM) ? EBCASC(str, nr) : EBCASC_500(str, nr); } /* translate string from ASCII to EBCDIC */ static inline void sclp_ascebc_str(unsigned char *str, int nr) { (MACHINE_IS_VM) ? ASCEBC(str, nr) : ASCEBC_500(str, nr); } #endif /* __SCLP_H__ */