1 /* 2 * Copyright (c) 1988 University of Utah. 3 * Copyright (c) 1982, 1990 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * the Systems Programming Group of the University of Utah Computer 8 * Science Department. 9 * 10 * %sccs.include.redist.c% 11 * 12 * from: Utah $Hdr: rd.c 1.14 89/02/27$ 13 * 14 * @(#)rd.c 7.3 (Berkeley) 05/05/91 15 */ 16 17 /* 18 * CS80/SS80 disk driver 19 */ 20 #include <sys/param.h> 21 #include "saio.h" 22 #include "samachdep.h" 23 24 #include "../dev/rdreg.h" 25 26 struct rd_iocmd rd_ioc; 27 struct rd_rscmd rd_rsc; 28 struct rd_stat rd_stat; 29 struct rd_ssmcmd rd_ssmc; 30 31 struct rd_softc { 32 char sc_retry; 33 char sc_alive; 34 short sc_type; 35 } rd_softc[NRD]; 36 37 #define RDRETRY 5 38 39 int rdcyloff[][8] = { 40 { 1, 143, 0, 143, 0, 0, 323, 503, }, /* 7945A */ 41 { 1, 167, 0, 0, 0, 0, 0, 0, }, /* 9134D */ 42 { 0, 0, 0, 0, 0, 0, 0, 0, }, /* 9122S */ 43 { 0, 71, 0, 221, 292, 542, 221, 0, }, /* 7912P */ 44 { 1, 72, 0, 72, 362, 802, 252, 362, }, /* 7914P */ 45 { 1, 28, 0, 140, 167, 444, 140, 721, }, /* 7933H */ 46 { 1, 200, 0, 200, 0, 0, 450, 600, }, /* 9134L */ 47 { 1, 105, 0, 105, 380, 736, 265, 380, }, /* 7957A */ 48 { 1, 65, 0, 65, 257, 657, 193, 257, }, /* 7958A */ 49 { 1, 128, 0, 128, 518, 918, 388, 518, }, /* 7957B */ 50 { 1, 44, 0, 44, 174, 496, 131, 174, }, /* 7958B */ 51 { 1, 44, 0, 44, 218, 918, 174, 218, }, /* 7959B */ 52 { 1, 20, 0, 98, 117, 256, 98, 397, }, /* 7936H */ 53 { 1, 11, 0, 53, 63, 217, 53, 371, }, /* 7937H */ 54 }; 55 56 struct rdinfo { 57 int nbpc; 58 int hwid; 59 int *cyloff; 60 } rdinfo[] = { 61 NRD7945ABPT*NRD7945ATRK, RD7946AID, rdcyloff[0], 62 NRD9134DBPT*NRD9134DTRK, RD9134DID, rdcyloff[1], 63 NRD9122SBPT*NRD9122STRK, RD9134LID, rdcyloff[2], 64 NRD7912PBPT*NRD7912PTRK, RD7912PID, rdcyloff[3], 65 NRD7914PBPT*NRD7914PTRK, RD7914PID, rdcyloff[4], 66 NRD7958ABPT*NRD7958ATRK, RD7958AID, rdcyloff[8], 67 NRD7957ABPT*NRD7957ATRK, RD7957AID, rdcyloff[7], 68 NRD7933HBPT*NRD7933HTRK, RD7933HID, rdcyloff[5], 69 NRD9134LBPT*NRD9134LTRK, RD9134LID, rdcyloff[6], 70 NRD7936HBPT*NRD7936HTRK, RD7936HID, rdcyloff[12], 71 NRD7937HBPT*NRD7937HTRK, RD7937HID, rdcyloff[13], 72 NRD7914PBPT*NRD7914PTRK, RD7914CTID,rdcyloff[4], 73 NRD7945ABPT*NRD7945ATRK, RD7946AID, rdcyloff[0], 74 NRD9122SBPT*NRD9122STRK, RD9134LID, rdcyloff[2], 75 NRD7957BBPT*NRD7957BTRK, RD7957BID, rdcyloff[9], 76 NRD7958BBPT*NRD7958BTRK, RD7958BID, rdcyloff[10], 77 NRD7959BBPT*NRD7959BTRK, RD7959BID, rdcyloff[11], 78 }; 79 int nrdinfo = sizeof(rdinfo) / sizeof(rdinfo[0]); 80 81 rdinit(unit) 82 register int unit; 83 { 84 register struct rd_softc *rs; 85 u_char stat; 86 87 if (unit > NRD) 88 return (0); 89 rs = &rd_softc[unit]; 90 rs->sc_type = rdident(unit); 91 if (rs->sc_type < 0) 92 return (0); 93 rs->sc_alive = 1; 94 return (1); 95 } 96 97 rdreset(unit) 98 { 99 u_char stat; 100 101 rd_ssmc.c_unit = C_SUNIT(0); 102 rd_ssmc.c_cmd = C_SSM; 103 rd_ssmc.c_refm = REF_MASK; 104 rd_ssmc.c_fefm = FEF_MASK; 105 rd_ssmc.c_aefm = AEF_MASK; 106 rd_ssmc.c_iefm = IEF_MASK; 107 hpibsend(unit, C_CMD, &rd_ssmc, sizeof(rd_ssmc)); 108 hpibswait(unit); 109 hpibrecv(unit, C_QSTAT, &stat, 1); 110 } 111 112 rdident(unit) 113 { 114 struct rd_describe desc; 115 u_char stat, cmd[3]; 116 char name[7]; 117 register int id, i; 118 119 id = hpibid(unit); 120 if ((id & 0x200) == 0) 121 return(-1); 122 for (i = 0; i < nrdinfo; i++) 123 if (id == rdinfo[i].hwid) 124 break; 125 if (i == nrdinfo) 126 return(-1); 127 id = i; 128 rdreset(unit); 129 cmd[0] = C_SUNIT(0); 130 cmd[1] = C_SVOL(0); 131 cmd[2] = C_DESC; 132 hpibsend(unit, C_CMD, cmd, sizeof(cmd)); 133 hpibrecv(unit, C_EXEC, &desc, 37); 134 hpibrecv(unit, C_QSTAT, &stat, sizeof(stat)); 135 bzero(name, sizeof(name)); 136 if (!stat) { 137 register int n = desc.d_name; 138 for (i = 5; i >= 0; i--) { 139 name[i] = (n & 0xf) + '0'; 140 n >>= 4; 141 } 142 } 143 /* 144 * Take care of a couple of anomolies: 145 * 1. 7945A and 7946A both return same HW id 146 * 2. 9122S and 9134D both return same HW id 147 * 3. 9122D and 9134L both return same HW id 148 */ 149 switch (rdinfo[id].hwid) { 150 case RD7946AID: 151 if (bcmp(name, "079450", 6) == 0) 152 id = RD7945A; 153 else 154 id = RD7946A; 155 break; 156 157 case RD9134LID: 158 if (bcmp(name, "091340", 6) == 0) 159 id = RD9134L; 160 else 161 id = RD9122D; 162 break; 163 164 case RD9134DID: 165 if (bcmp(name, "091220", 6) == 0) 166 id = RD9122S; 167 else 168 id = RD9134D; 169 break; 170 } 171 return(id); 172 } 173 174 rdopen(io) 175 struct iob *io; 176 { 177 register int unit = io->i_unit; 178 register struct rd_softc *rs = &rd_softc[unit]; 179 struct rdinfo *ri; 180 181 if (hpibalive(unit) == 0) 182 _stop("rd controller not configured"); 183 if (rs->sc_alive == 0) 184 if (rdinit(unit) == 0) 185 _stop("rd init failed"); 186 if (io->i_boff < 0 || io->i_boff > 7) 187 _stop("rd bad minor"); 188 ri = &rdinfo[rs->sc_type]; 189 io->i_boff = ri->cyloff[io->i_boff] * ri->nbpc; 190 } 191 192 rdstrategy(io, func) 193 register struct iob *io; 194 register int func; 195 { 196 register int unit = io->i_unit; 197 register struct rd_softc *rs = &rd_softc[unit]; 198 char stat; 199 200 rs->sc_retry = 0; 201 rd_ioc.c_unit = C_SUNIT(0); 202 rd_ioc.c_volume = C_SVOL(0); 203 rd_ioc.c_saddr = C_SADDR; 204 rd_ioc.c_hiaddr = 0; 205 rd_ioc.c_addr = RDBTOS(io->i_bn); 206 rd_ioc.c_nop2 = C_NOP; 207 rd_ioc.c_slen = C_SLEN; 208 rd_ioc.c_len = io->i_cc; 209 rd_ioc.c_cmd = func == F_READ ? C_READ : C_WRITE; 210 retry: 211 hpibsend(unit, C_CMD, &rd_ioc.c_unit, sizeof(rd_ioc)-2); 212 hpibswait(unit); 213 hpibgo(unit, C_EXEC, io->i_ma, io->i_cc, func); 214 hpibswait(unit); 215 hpibrecv(unit, C_QSTAT, &stat, 1); 216 if (stat) { 217 if (rderror(unit) == 0) 218 return(-1); 219 if (++rs->sc_retry > RDRETRY) 220 return(-1); 221 else 222 goto retry; 223 } 224 return(io->i_cc); 225 } 226 227 rderror(unit) 228 register int unit; 229 { 230 register struct rd_softc *rd = &rd_softc[unit]; 231 char stat; 232 233 rd_rsc.c_unit = C_SUNIT(0); 234 rd_rsc.c_sram = C_SRAM; 235 rd_rsc.c_ram = C_RAM; 236 rd_rsc.c_cmd = C_STATUS; 237 hpibsend(unit, C_CMD, &rd_rsc, sizeof(rd_rsc)); 238 hpibrecv(unit, C_EXEC, &rd_stat, sizeof(rd_stat)); 239 hpibrecv(unit, C_QSTAT, &stat, 1); 240 if (stat) { 241 printf("rd(%d,?): request status fail %d\n", unit, stat); 242 return(0); 243 } 244 printf("rd(%d,?) err: vu 0x%x", unit, rd_stat.c_vu); 245 if ((rd_stat.c_aef & AEF_UD) || (rd_stat.c_ief & (IEF_MD|IEF_RD))) 246 printf(", block %d", rd_stat.c_blk); 247 printf(", R0x%x F0x%x A0x%x I0x%x\n", 248 rd_stat.c_ref, rd_stat.c_fef, rd_stat.c_aef, rd_stat.c_ief); 249 return(1); 250 } 251