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_CONFMGMDATA 0x04 31#define EVTYP_SDIAS 0x1C 32 33#define EVTYP_OPCMD_MASK 0x80000000 34#define EVTYP_MSG_MASK 0x40000000 35#define EVTYP_STATECHANGE_MASK 0x01000000 36#define EVTYP_PMSGCMD_MASK 0x00800000 37#define EVTYP_CTLPROGOPCMD_MASK 0x00000001 38#define EVTYP_CTLPROGIDENT_MASK 0x00200000 39#define EVTYP_SIGQUIESCE_MASK 0x00000008 40#define EVTYP_VT220MSG_MASK 0x00000040 41#define EVTYP_CONFMGMDATA_MASK 0x10000000 42#define EVTYP_SDIAS_MASK 0x00000010 43 44#define GNRLMSGFLGS_DOM 0x8000 45#define GNRLMSGFLGS_SNDALRM 0x4000 46#define GNRLMSGFLGS_HOLDMSG 0x2000 47 48#define LNTPFLGS_CNTLTEXT 0x8000 49#define LNTPFLGS_LABELTEXT 0x4000 50#define LNTPFLGS_DATATEXT 0x2000 51#define LNTPFLGS_ENDTEXT 0x1000 52#define LNTPFLGS_PROMPTTEXT 0x0800 53 54typedef unsigned int sclp_cmdw_t; 55 56#define SCLP_CMDW_READ_EVENT_DATA 0x00770005 57#define SCLP_CMDW_WRITE_EVENT_DATA 0x00760005 58#define SCLP_CMDW_WRITE_EVENT_MASK 0x00780005 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 sccb_header { 74 u16 length; 75 u8 function_code; 76 u8 control_mask[3]; 77 u16 response_code; 78} __attribute__((packed)); 79 80extern u64 sclp_facilities; 81 82#define SCLP_HAS_CHP_INFO (sclp_facilities & 0x8000000000000000ULL) 83#define SCLP_HAS_CHP_RECONFIG (sclp_facilities & 0x2000000000000000ULL) 84#define SCLP_HAS_CPU_INFO (sclp_facilities & 0x0800000000000000ULL) 85#define SCLP_HAS_CPU_RECONFIG (sclp_facilities & 0x0400000000000000ULL) 86 87struct gds_subvector { 88 u8 length; 89 u8 key; 90} __attribute__((packed)); 91 92struct gds_vector { 93 u16 length; 94 u16 gds_id; 95} __attribute__((packed)); 96 97struct evbuf_header { 98 u16 length; 99 u8 type; 100 u8 flags; 101 u16 _reserved; 102} __attribute__((packed)); 103 104struct sclp_req { 105 struct list_head list; /* list_head for request queueing. */ 106 sclp_cmdw_t command; /* sclp command to execute */ 107 void *sccb; /* pointer to the sccb to execute */ 108 char status; /* status of this request */ 109 int start_count; /* number of SVCs done for this req */ 110 /* Callback that is called after reaching final status. */ 111 void (*callback)(struct sclp_req *, void *data); 112 void *callback_data; 113}; 114 115#define SCLP_REQ_FILLED 0x00 /* request is ready to be processed */ 116#define SCLP_REQ_QUEUED 0x01 /* request is queued to be processed */ 117#define SCLP_REQ_RUNNING 0x02 /* request is currently running */ 118#define SCLP_REQ_DONE 0x03 /* request is completed successfully */ 119#define SCLP_REQ_FAILED 0x05 /* request is finally failed */ 120 121/* function pointers that a high level driver has to use for registration */ 122/* of some routines it wants to be called from the low level driver */ 123struct sclp_register { 124 struct list_head list; 125 /* User wants to receive: */ 126 sccb_mask_t receive_mask; 127 /* User wants to send: */ 128 sccb_mask_t send_mask; 129 /* H/W can receive: */ 130 sccb_mask_t sclp_receive_mask; 131 /* H/W can send: */ 132 sccb_mask_t sclp_send_mask; 133 /* called if event type availability changes */ 134 void (*state_change_fn)(struct sclp_register *); 135 /* called for events in cp_receive_mask/sclp_receive_mask */ 136 void (*receiver_fn)(struct evbuf_header *); 137}; 138 139/* externals from sclp.c */ 140int sclp_add_request(struct sclp_req *req); 141void sclp_sync_wait(void); 142int sclp_register(struct sclp_register *reg); 143void sclp_unregister(struct sclp_register *reg); 144int sclp_remove_processed(struct sccb_header *sccb); 145int sclp_deactivate(void); 146int sclp_reactivate(void); 147int sclp_service_call(sclp_cmdw_t command, void *sccb); 148 149int sclp_sdias_init(void); 150void sclp_sdias_exit(void); 151 152/* useful inlines */ 153 154/* VM uses EBCDIC 037, LPAR+native(SE+HMC) use EBCDIC 500 */ 155/* translate single character from ASCII to EBCDIC */ 156static inline unsigned char 157sclp_ascebc(unsigned char ch) 158{ 159 return (MACHINE_IS_VM) ? _ascebc[ch] : _ascebc_500[ch]; 160} 161 162/* translate string from EBCDIC to ASCII */ 163static inline void 164sclp_ebcasc_str(unsigned char *str, int nr) 165{ 166 (MACHINE_IS_VM) ? EBCASC(str, nr) : EBCASC_500(str, nr); 167} 168 169/* translate string from ASCII to EBCDIC */ 170static inline void 171sclp_ascebc_str(unsigned char *str, int nr) 172{ 173 (MACHINE_IS_VM) ? ASCEBC(str, nr) : ASCEBC_500(str, nr); 174} 175 176#endif /* __SCLP_H__ */ 177