sclp.h revision 6d4740c89c187ee8f5ac7355c4eeffda26493d1f
1/* 2 * drivers/s390/char/sclp.h 3 * 4 * S390 version 5 * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation 6 * Author(s): Martin Peschke <mpeschke@de.ibm.com> 7 * Martin Schwidefsky <schwidefsky@de.ibm.com> 8 */ 9 10#ifndef __SCLP_H__ 11#define __SCLP_H__ 12 13#include <linux/types.h> 14#include <linux/list.h> 15#include <asm/sclp.h> 16#include <asm/ebcdic.h> 17 18/* maximum number of pages concerning our own memory management */ 19#define MAX_KMEM_PAGES (sizeof(unsigned long) << 3) 20#define MAX_CONSOLE_PAGES 4 21 22#define EVTYP_OPCMD 0x01 23#define EVTYP_MSG 0x02 24#define EVTYP_STATECHANGE 0x08 25#define EVTYP_PMSGCMD 0x09 26#define EVTYP_CNTLPROGOPCMD 0x20 27#define EVTYP_CNTLPROGIDENT 0x0B 28#define EVTYP_SIGQUIESCE 0x1D 29#define EVTYP_VT220MSG 0x1A 30#define EVTYP_SDIAS 0x1C 31 32#define EVTYP_OPCMD_MASK 0x80000000 33#define EVTYP_MSG_MASK 0x40000000 34#define EVTYP_STATECHANGE_MASK 0x01000000 35#define EVTYP_PMSGCMD_MASK 0x00800000 36#define EVTYP_CTLPROGOPCMD_MASK 0x00000001 37#define EVTYP_CTLPROGIDENT_MASK 0x00200000 38#define EVTYP_SIGQUIESCE_MASK 0x00000008 39#define EVTYP_VT220MSG_MASK 0x00000040 40#define EVTYP_SDIAS_MASK 0x00000010 41 42#define GNRLMSGFLGS_DOM 0x8000 43#define GNRLMSGFLGS_SNDALRM 0x4000 44#define GNRLMSGFLGS_HOLDMSG 0x2000 45 46#define LNTPFLGS_CNTLTEXT 0x8000 47#define LNTPFLGS_LABELTEXT 0x4000 48#define LNTPFLGS_DATATEXT 0x2000 49#define LNTPFLGS_ENDTEXT 0x1000 50#define LNTPFLGS_PROMPTTEXT 0x0800 51 52typedef unsigned int sclp_cmdw_t; 53 54#define SCLP_CMDW_READ_EVENT_DATA 0x00770005 55#define SCLP_CMDW_WRITE_EVENT_DATA 0x00760005 56#define SCLP_CMDW_WRITE_EVENT_MASK 0x00780005 57#define SCLP_CMDW_READ_SCP_INFO 0x00020001 58#define SCLP_CMDW_READ_SCP_INFO_FORCED 0x00120001 59 60#define GDS_ID_MDSMU 0x1310 61#define GDS_ID_MDSROUTEINFO 0x1311 62#define GDS_ID_AGUNWRKCORR 0x1549 63#define GDS_ID_SNACONDREPORT 0x1532 64#define GDS_ID_CPMSU 0x1212 65#define GDS_ID_ROUTTARGINSTR 0x154D 66#define GDS_ID_OPREQ 0x8070 67#define GDS_ID_TEXTCMD 0x1320 68 69#define GDS_KEY_SELFDEFTEXTMSG 0x31 70 71typedef u32 sccb_mask_t; /* ATTENTION: assumes 32bit mask !!! */ 72 73struct gds_subvector { 74 u8 length; 75 u8 key; 76} __attribute__((packed)); 77 78struct gds_vector { 79 u16 length; 80 u16 gds_id; 81} __attribute__((packed)); 82 83struct evbuf_header { 84 u16 length; 85 u8 type; 86 u8 flags; 87 u16 _reserved; 88} __attribute__((packed)); 89 90struct sclp_req { 91 struct list_head list; /* list_head for request queueing. */ 92 sclp_cmdw_t command; /* sclp command to execute */ 93 void *sccb; /* pointer to the sccb to execute */ 94 char status; /* status of this request */ 95 int start_count; /* number of SVCs done for this req */ 96 /* Callback that is called after reaching final status. */ 97 void (*callback)(struct sclp_req *, void *data); 98 void *callback_data; 99}; 100 101#define SCLP_REQ_FILLED 0x00 /* request is ready to be processed */ 102#define SCLP_REQ_QUEUED 0x01 /* request is queued to be processed */ 103#define SCLP_REQ_RUNNING 0x02 /* request is currently running */ 104#define SCLP_REQ_DONE 0x03 /* request is completed successfully */ 105#define SCLP_REQ_FAILED 0x05 /* request is finally failed */ 106 107/* function pointers that a high level driver has to use for registration */ 108/* of some routines it wants to be called from the low level driver */ 109struct sclp_register { 110 struct list_head list; 111 /* event masks this user is registered for */ 112 sccb_mask_t receive_mask; 113 sccb_mask_t send_mask; 114 /* actually present events */ 115 sccb_mask_t sclp_receive_mask; 116 sccb_mask_t sclp_send_mask; 117 /* called if event type availability changes */ 118 void (*state_change_fn)(struct sclp_register *); 119 /* called for events in cp_receive_mask/sclp_receive_mask */ 120 void (*receiver_fn)(struct evbuf_header *); 121}; 122 123/* externals from sclp.c */ 124int sclp_add_request(struct sclp_req *req); 125void sclp_sync_wait(void); 126int sclp_register(struct sclp_register *reg); 127void sclp_unregister(struct sclp_register *reg); 128int sclp_remove_processed(struct sccb_header *sccb); 129int sclp_deactivate(void); 130int sclp_reactivate(void); 131int sclp_service_call(sclp_cmdw_t command, void *sccb); 132 133/* useful inlines */ 134 135/* VM uses EBCDIC 037, LPAR+native(SE+HMC) use EBCDIC 500 */ 136/* translate single character from ASCII to EBCDIC */ 137static inline unsigned char 138sclp_ascebc(unsigned char ch) 139{ 140 return (MACHINE_IS_VM) ? _ascebc[ch] : _ascebc_500[ch]; 141} 142 143/* translate string from EBCDIC to ASCII */ 144static inline void 145sclp_ebcasc_str(unsigned char *str, int nr) 146{ 147 (MACHINE_IS_VM) ? EBCASC(str, nr) : EBCASC_500(str, nr); 148} 149 150/* translate string from ASCII to EBCDIC */ 151static inline void 152sclp_ascebc_str(unsigned char *str, int nr) 153{ 154 (MACHINE_IS_VM) ? ASCEBC(str, nr) : ASCEBC_500(str, nr); 155} 156 157#endif /* __SCLP_H__ */ 158