1 /* 2 * Copyright IBM Corp. 1999, 2009 3 * 4 * Author(s): Martin Peschke <mpeschke@de.ibm.com> 5 * Martin Schwidefsky <schwidefsky@de.ibm.com> 6 */ 7 8 #ifndef __SCLP_H__ 9 #define __SCLP_H__ 10 11 #include <linux/types.h> 12 #include <linux/list.h> 13 #include <asm/sclp.h> 14 #include <asm/ebcdic.h> 15 16 /* maximum number of pages concerning our own memory management */ 17 #define MAX_KMEM_PAGES (sizeof(unsigned long) << 3) 18 #define MAX_CONSOLE_PAGES 6 19 20 #define EVTYP_OPCMD 0x01 21 #define EVTYP_MSG 0x02 22 #define EVTYP_STATECHANGE 0x08 23 #define EVTYP_PMSGCMD 0x09 24 #define EVTYP_CNTLPROGOPCMD 0x20 25 #define EVTYP_CNTLPROGIDENT 0x0B 26 #define EVTYP_SIGQUIESCE 0x1D 27 #define EVTYP_VT220MSG 0x1A 28 #define EVTYP_CONFMGMDATA 0x04 29 #define EVTYP_SDIAS 0x1C 30 31 #define EVTYP_OPCMD_MASK 0x80000000 32 #define EVTYP_MSG_MASK 0x40000000 33 #define EVTYP_STATECHANGE_MASK 0x01000000 34 #define EVTYP_PMSGCMD_MASK 0x00800000 35 #define EVTYP_CTLPROGOPCMD_MASK 0x00000001 36 #define EVTYP_CTLPROGIDENT_MASK 0x00200000 37 #define EVTYP_SIGQUIESCE_MASK 0x00000008 38 #define EVTYP_VT220MSG_MASK 0x00000040 39 #define EVTYP_CONFMGMDATA_MASK 0x10000000 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 52 typedef 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 58 #define GDS_ID_MDSMU 0x1310 59 #define GDS_ID_MDSROUTEINFO 0x1311 60 #define GDS_ID_AGUNWRKCORR 0x1549 61 #define GDS_ID_SNACONDREPORT 0x1532 62 #define GDS_ID_CPMSU 0x1212 63 #define GDS_ID_ROUTTARGINSTR 0x154D 64 #define GDS_ID_OPREQ 0x8070 65 #define GDS_ID_TEXTCMD 0x1320 66 67 #define GDS_KEY_SELFDEFTEXTMSG 0x31 68 69 enum sclp_pm_event { 70 SCLP_PM_EVENT_FREEZE, 71 SCLP_PM_EVENT_THAW, 72 SCLP_PM_EVENT_RESTORE, 73 }; 74 75 #define SCLP_PANIC_PRIO 1 76 #define SCLP_PANIC_PRIO_CLIENT 0 77 78 typedef u32 sccb_mask_t; /* ATTENTION: assumes 32bit mask !!! */ 79 80 struct sccb_header { 81 u16 length; 82 u8 function_code; 83 u8 control_mask[3]; 84 u16 response_code; 85 } __attribute__((packed)); 86 87 extern u64 sclp_facilities; 88 89 #define SCLP_HAS_CHP_INFO (sclp_facilities & 0x8000000000000000ULL) 90 #define SCLP_HAS_CHP_RECONFIG (sclp_facilities & 0x2000000000000000ULL) 91 #define SCLP_HAS_CPU_INFO (sclp_facilities & 0x0800000000000000ULL) 92 #define SCLP_HAS_CPU_RECONFIG (sclp_facilities & 0x0400000000000000ULL) 93 94 struct gds_subvector { 95 u8 length; 96 u8 key; 97 } __attribute__((packed)); 98 99 struct gds_vector { 100 u16 length; 101 u16 gds_id; 102 } __attribute__((packed)); 103 104 struct evbuf_header { 105 u16 length; 106 u8 type; 107 u8 flags; 108 u16 _reserved; 109 } __attribute__((packed)); 110 111 struct sclp_req { 112 struct list_head list; /* list_head for request queueing. */ 113 sclp_cmdw_t command; /* sclp command to execute */ 114 void *sccb; /* pointer to the sccb to execute */ 115 char status; /* status of this request */ 116 int start_count; /* number of SVCs done for this req */ 117 /* Callback that is called after reaching final status. */ 118 void (*callback)(struct sclp_req *, void *data); 119 void *callback_data; 120 }; 121 122 #define SCLP_REQ_FILLED 0x00 /* request is ready to be processed */ 123 #define SCLP_REQ_QUEUED 0x01 /* request is queued to be processed */ 124 #define SCLP_REQ_RUNNING 0x02 /* request is currently running */ 125 #define SCLP_REQ_DONE 0x03 /* request is completed successfully */ 126 #define SCLP_REQ_FAILED 0x05 /* request is finally failed */ 127 128 /* function pointers that a high level driver has to use for registration */ 129 /* of some routines it wants to be called from the low level driver */ 130 struct sclp_register { 131 struct list_head list; 132 /* User wants to receive: */ 133 sccb_mask_t receive_mask; 134 /* User wants to send: */ 135 sccb_mask_t send_mask; 136 /* H/W can receive: */ 137 sccb_mask_t sclp_receive_mask; 138 /* H/W can send: */ 139 sccb_mask_t sclp_send_mask; 140 /* called if event type availability changes */ 141 void (*state_change_fn)(struct sclp_register *); 142 /* called for events in cp_receive_mask/sclp_receive_mask */ 143 void (*receiver_fn)(struct evbuf_header *); 144 /* called for power management events */ 145 void (*pm_event_fn)(struct sclp_register *, enum sclp_pm_event); 146 /* pm event posted flag */ 147 int pm_event_posted; 148 }; 149 150 /* externals from sclp.c */ 151 int sclp_add_request(struct sclp_req *req); 152 void sclp_sync_wait(void); 153 int sclp_register(struct sclp_register *reg); 154 void sclp_unregister(struct sclp_register *reg); 155 int sclp_remove_processed(struct sccb_header *sccb); 156 int sclp_deactivate(void); 157 int sclp_reactivate(void); 158 int sclp_service_call(sclp_cmdw_t command, void *sccb); 159 160 int sclp_sdias_init(void); 161 void sclp_sdias_exit(void); 162 163 /* useful inlines */ 164 165 /* VM uses EBCDIC 037, LPAR+native(SE+HMC) use EBCDIC 500 */ 166 /* translate single character from ASCII to EBCDIC */ 167 static inline unsigned char 168 sclp_ascebc(unsigned char ch) 169 { 170 return (MACHINE_IS_VM) ? _ascebc[ch] : _ascebc_500[ch]; 171 } 172 173 /* translate string from EBCDIC to ASCII */ 174 static inline void 175 sclp_ebcasc_str(unsigned char *str, int nr) 176 { 177 (MACHINE_IS_VM) ? EBCASC(str, nr) : EBCASC_500(str, nr); 178 } 179 180 /* translate string from ASCII to EBCDIC */ 181 static inline void 182 sclp_ascebc_str(unsigned char *str, int nr) 183 { 184 (MACHINE_IS_VM) ? ASCEBC(str, nr) : ASCEBC_500(str, nr); 185 } 186 187 #endif /* __SCLP_H__ */ 188