siop_common.c revision 1.11.2.3 1 1.11.2.3 bouyer /* $NetBSD: siop_common.c,v 1.11.2.3 2000/12/14 13:09:31 bouyer Exp $ */
2 1.11.2.2 bouyer
3 1.11.2.2 bouyer /*
4 1.11.2.2 bouyer * Copyright (c) 2000 Manuel Bouyer.
5 1.11.2.2 bouyer *
6 1.11.2.2 bouyer * Redistribution and use in source and binary forms, with or without
7 1.11.2.2 bouyer * modification, are permitted provided that the following conditions
8 1.11.2.2 bouyer * are met:
9 1.11.2.2 bouyer * 1. Redistributions of source code must retain the above copyright
10 1.11.2.2 bouyer * notice, this list of conditions and the following disclaimer.
11 1.11.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright
12 1.11.2.2 bouyer * notice, this list of conditions and the following disclaimer in the
13 1.11.2.2 bouyer * documentation and/or other materials provided with the distribution.
14 1.11.2.2 bouyer * 3. All advertising materials mentioning features or use of this software
15 1.11.2.2 bouyer * must display the following acknowledgement:
16 1.11.2.2 bouyer * This product includes software developed by Manuel Bouyer
17 1.11.2.2 bouyer * 4. The name of the author may not be used to endorse or promote products
18 1.11.2.2 bouyer * derived from this software without specific prior written permission.
19 1.11.2.2 bouyer *
20 1.11.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 1.11.2.2 bouyer * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 1.11.2.2 bouyer * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 1.11.2.2 bouyer * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 1.11.2.2 bouyer * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 1.11.2.2 bouyer * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 1.11.2.2 bouyer * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 1.11.2.2 bouyer * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 1.11.2.2 bouyer * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 1.11.2.2 bouyer * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 1.11.2.2 bouyer *
31 1.11.2.2 bouyer */
32 1.11.2.2 bouyer
33 1.11.2.2 bouyer /* SYM53c7/8xx PCI-SCSI I/O Processors driver */
34 1.11.2.2 bouyer
35 1.11.2.2 bouyer #include <sys/param.h>
36 1.11.2.2 bouyer #include <sys/systm.h>
37 1.11.2.2 bouyer #include <sys/device.h>
38 1.11.2.2 bouyer #include <sys/malloc.h>
39 1.11.2.2 bouyer #include <sys/buf.h>
40 1.11.2.2 bouyer #include <sys/kernel.h>
41 1.11.2.2 bouyer #include <sys/scsiio.h>
42 1.11.2.2 bouyer
43 1.11.2.2 bouyer #include <machine/endian.h>
44 1.11.2.2 bouyer #include <machine/bus.h>
45 1.11.2.2 bouyer
46 1.11.2.2 bouyer #include <dev/scsipi/scsi_all.h>
47 1.11.2.2 bouyer #include <dev/scsipi/scsi_message.h>
48 1.11.2.2 bouyer #include <dev/scsipi/scsipi_all.h>
49 1.11.2.2 bouyer
50 1.11.2.2 bouyer #include <dev/scsipi/scsiconf.h>
51 1.11.2.2 bouyer
52 1.11.2.2 bouyer #include <dev/ic/siopreg.h>
53 1.11.2.2 bouyer #include <dev/ic/siopvar.h>
54 1.11.2.2 bouyer #include <dev/ic/siopvar_common.h>
55 1.11.2.2 bouyer
56 1.11.2.2 bouyer #undef DEBUG
57 1.11.2.2 bouyer #undef DEBUG_DR
58 1.11.2.2 bouyer
59 1.11.2.2 bouyer void
60 1.11.2.2 bouyer siop_common_reset(sc)
61 1.11.2.2 bouyer struct siop_softc *sc;
62 1.11.2.2 bouyer {
63 1.11.2.2 bouyer u_int32_t stest3;
64 1.11.2.2 bouyer
65 1.11.2.2 bouyer /* reset the chip */
66 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_ISTAT, ISTAT_SRST);
67 1.11.2.2 bouyer delay(1000);
68 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_ISTAT, 0);
69 1.11.2.2 bouyer
70 1.11.2.2 bouyer /* init registers */
71 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_SCNTL0,
72 1.11.2.2 bouyer SCNTL0_ARB_MASK | SCNTL0_EPC | SCNTL0_AAP);
73 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_SCNTL1, 0);
74 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_SCNTL3, sc->clock_div);
75 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_SXFER, 0);
76 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_DIEN, 0xff);
77 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_SIEN0,
78 1.11.2.2 bouyer 0xff & ~(SIEN0_CMP | SIEN0_SEL | SIEN0_RSL));
79 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_SIEN1,
80 1.11.2.2 bouyer 0xff & ~(SIEN1_HTH | SIEN1_GEN));
81 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STEST2, 0);
82 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STEST3, STEST3_TE);
83 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STIME0,
84 1.11.2.2 bouyer (0xb << STIME0_SEL_SHIFT));
85 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_SCID,
86 1.11.2.3 bouyer sc->sc_chan.chan_id | SCID_RRE);
87 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_RESPID0,
88 1.11.2.3 bouyer 1 << sc->sc_chan.chan_id);
89 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_DCNTL,
90 1.11.2.2 bouyer (sc->features & SF_CHIP_PF) ? DCNTL_COM | DCNTL_PFEN : DCNTL_COM);
91 1.11.2.2 bouyer
92 1.11.2.2 bouyer /* enable clock doubler or quadruler if appropriate */
93 1.11.2.2 bouyer if (sc->features & (SF_CHIP_DBLR | SF_CHIP_QUAD)) {
94 1.11.2.2 bouyer stest3 = bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_STEST3);
95 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STEST1,
96 1.11.2.2 bouyer STEST1_DBLEN);
97 1.11.2.2 bouyer if (sc->features & SF_CHIP_QUAD) {
98 1.11.2.2 bouyer /* wait for PPL to lock */
99 1.11.2.2 bouyer while ((bus_space_read_1(sc->sc_rt, sc->sc_rh,
100 1.11.2.2 bouyer SIOP_STEST4) & STEST4_LOCK) == 0)
101 1.11.2.2 bouyer delay(10);
102 1.11.2.2 bouyer } else {
103 1.11.2.2 bouyer /* data sheet says 20us - more won't hurt */
104 1.11.2.2 bouyer delay(100);
105 1.11.2.2 bouyer }
106 1.11.2.2 bouyer /* halt scsi clock, select doubler/quad, restart clock */
107 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STEST3,
108 1.11.2.2 bouyer stest3 | STEST3_HSC);
109 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STEST1,
110 1.11.2.2 bouyer STEST1_DBLEN | STEST1_DBLSEL);
111 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STEST3, stest3);
112 1.11.2.2 bouyer } else {
113 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STEST1, 0);
114 1.11.2.2 bouyer }
115 1.11.2.2 bouyer if (sc->features & SF_CHIP_FIFO)
116 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_CTEST5,
117 1.11.2.2 bouyer bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_CTEST5) |
118 1.11.2.2 bouyer CTEST5_DFS);
119 1.11.2.2 bouyer
120 1.11.2.2 bouyer sc->sc_reset(sc);
121 1.11.2.2 bouyer }
122 1.11.2.2 bouyer
123 1.11.2.2 bouyer /* prepare tables before sending a cmd */
124 1.11.2.2 bouyer void
125 1.11.2.2 bouyer siop_setuptables(siop_cmd)
126 1.11.2.2 bouyer struct siop_cmd *siop_cmd;
127 1.11.2.2 bouyer {
128 1.11.2.2 bouyer int i;
129 1.11.2.2 bouyer struct siop_softc *sc = siop_cmd->siop_sc;
130 1.11.2.2 bouyer struct scsipi_xfer *xs = siop_cmd->xs;
131 1.11.2.3 bouyer int target = xs->xs_periph->periph_target;
132 1.11.2.3 bouyer int lun = xs->xs_periph->periph_lun;
133 1.11.2.2 bouyer
134 1.11.2.2 bouyer siop_cmd->siop_tables.id = htole32(sc->targets[target]->id);
135 1.11.2.2 bouyer memset(siop_cmd->siop_tables.msg_out, 0, 8);
136 1.11.2.2 bouyer siop_cmd->siop_tables.msg_out[0] = MSG_IDENTIFY(lun, 1);
137 1.11.2.2 bouyer siop_cmd->siop_tables.t_msgout.count= htole32(1);
138 1.11.2.2 bouyer if (sc->targets[target]->status == TARST_ASYNC) {
139 1.11.2.2 bouyer if (sc->targets[target]->flags & TARF_WIDE) {
140 1.11.2.2 bouyer sc->targets[target]->status = TARST_WIDE_NEG;
141 1.11.2.2 bouyer siop_wdtr_msg(siop_cmd, 1, MSG_EXT_WDTR_BUS_16_BIT);
142 1.11.2.2 bouyer } else if (sc->targets[target]->flags & TARF_SYNC) {
143 1.11.2.2 bouyer sc->targets[target]->status = TARST_SYNC_NEG;
144 1.11.2.2 bouyer siop_sdtr_msg(siop_cmd, 1, sc->minsync, sc->maxoff);
145 1.11.2.2 bouyer } else {
146 1.11.2.2 bouyer sc->targets[target]->status = TARST_OK;
147 1.11.2.3 bouyer siop_update_xfer_mode(sc, target);
148 1.11.2.2 bouyer }
149 1.11.2.2 bouyer } else if (sc->targets[target]->status == TARST_OK &&
150 1.11.2.2 bouyer (sc->targets[target]->flags & TARF_TAG) &&
151 1.11.2.2 bouyer siop_cmd->status != CMDST_SENSE) {
152 1.11.2.2 bouyer siop_cmd->flags |= CMDFL_TAG;
153 1.11.2.2 bouyer }
154 1.11.2.2 bouyer siop_cmd->siop_tables.status =
155 1.11.2.2 bouyer htole32(SCSI_SIOP_NOSTATUS); /* set invalid status */
156 1.11.2.2 bouyer
157 1.11.2.2 bouyer siop_cmd->siop_tables.cmd.count =
158 1.11.2.2 bouyer htole32(siop_cmd->dmamap_cmd->dm_segs[0].ds_len);
159 1.11.2.2 bouyer siop_cmd->siop_tables.cmd.addr =
160 1.11.2.2 bouyer htole32(siop_cmd->dmamap_cmd->dm_segs[0].ds_addr);
161 1.11.2.2 bouyer if ((xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) ||
162 1.11.2.2 bouyer siop_cmd->status == CMDST_SENSE) {
163 1.11.2.2 bouyer for (i = 0; i < siop_cmd->dmamap_data->dm_nsegs; i++) {
164 1.11.2.2 bouyer siop_cmd->siop_tables.data[i].count =
165 1.11.2.2 bouyer htole32(siop_cmd->dmamap_data->dm_segs[i].ds_len);
166 1.11.2.2 bouyer siop_cmd->siop_tables.data[i].addr =
167 1.11.2.2 bouyer htole32(siop_cmd->dmamap_data->dm_segs[i].ds_addr);
168 1.11.2.2 bouyer }
169 1.11.2.2 bouyer }
170 1.11.2.2 bouyer siop_table_sync(siop_cmd, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
171 1.11.2.2 bouyer }
172 1.11.2.2 bouyer
173 1.11.2.2 bouyer int
174 1.11.2.2 bouyer siop_wdtr_neg(siop_cmd)
175 1.11.2.2 bouyer struct siop_cmd *siop_cmd;
176 1.11.2.2 bouyer {
177 1.11.2.2 bouyer struct siop_softc *sc = siop_cmd->siop_sc;
178 1.11.2.2 bouyer struct siop_target *siop_target = siop_cmd->siop_target;
179 1.11.2.3 bouyer int target = siop_cmd->xs->xs_periph->periph_target;
180 1.11.2.2 bouyer struct siop_xfer_common *tables = &siop_cmd->siop_xfer->tables;
181 1.11.2.2 bouyer
182 1.11.2.2 bouyer if (siop_target->status == TARST_WIDE_NEG) {
183 1.11.2.2 bouyer /* we initiated wide negotiation */
184 1.11.2.2 bouyer switch (tables->msg_in[3]) {
185 1.11.2.2 bouyer case MSG_EXT_WDTR_BUS_8_BIT:
186 1.11.2.2 bouyer siop_target->flags &= ~TARF_ISWIDE;
187 1.11.2.2 bouyer sc->targets[target]->id &= ~(SCNTL3_EWS << 24);
188 1.11.2.2 bouyer break;
189 1.11.2.2 bouyer case MSG_EXT_WDTR_BUS_16_BIT:
190 1.11.2.2 bouyer if (siop_target->flags & TARF_WIDE) {
191 1.11.2.2 bouyer siop_target->flags |= TARF_ISWIDE;
192 1.11.2.2 bouyer sc->targets[target]->id |= (SCNTL3_EWS << 24);
193 1.11.2.2 bouyer break;
194 1.11.2.2 bouyer }
195 1.11.2.2 bouyer /* FALLTHROUH */
196 1.11.2.2 bouyer default:
197 1.11.2.2 bouyer /*
198 1.11.2.2 bouyer * hum, we got more than what we can handle, shoudn't
199 1.11.2.2 bouyer * happen. Reject, and stay async
200 1.11.2.2 bouyer */
201 1.11.2.2 bouyer siop_target->flags &= ~TARF_ISWIDE;
202 1.11.2.2 bouyer siop_target->status = TARST_OK;
203 1.11.2.3 bouyer siop_target->offset = siop_target->period = 0;
204 1.11.2.3 bouyer siop_update_xfer_mode(sc, target);
205 1.11.2.2 bouyer printf("%s: rejecting invalid wide negotiation from "
206 1.11.2.2 bouyer "target %d (%d)\n", sc->sc_dev.dv_xname, target,
207 1.11.2.2 bouyer tables->msg_in[3]);
208 1.11.2.2 bouyer tables->t_msgout.count= htole32(1);
209 1.11.2.2 bouyer tables->msg_out[0] = MSG_MESSAGE_REJECT;
210 1.11.2.2 bouyer return SIOP_NEG_MSGOUT;
211 1.11.2.2 bouyer }
212 1.11.2.2 bouyer tables->id = htole32(sc->targets[target]->id);
213 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh,
214 1.11.2.2 bouyer SIOP_SCNTL3,
215 1.11.2.2 bouyer (sc->targets[target]->id >> 24) & 0xff);
216 1.11.2.2 bouyer /* we now need to do sync */
217 1.11.2.2 bouyer if (siop_target->flags & TARF_SYNC) {
218 1.11.2.2 bouyer siop_target->status = TARST_SYNC_NEG;
219 1.11.2.2 bouyer siop_sdtr_msg(siop_cmd, 0, sc->minsync, sc->maxoff);
220 1.11.2.2 bouyer return SIOP_NEG_MSGOUT;
221 1.11.2.2 bouyer } else {
222 1.11.2.2 bouyer siop_target->status = TARST_OK;
223 1.11.2.3 bouyer siop_update_xfer_mode(sc, target);
224 1.11.2.2 bouyer return SIOP_NEG_ACK;
225 1.11.2.2 bouyer }
226 1.11.2.2 bouyer } else {
227 1.11.2.2 bouyer /* target initiated wide negotiation */
228 1.11.2.2 bouyer if (tables->msg_in[3] >= MSG_EXT_WDTR_BUS_16_BIT
229 1.11.2.2 bouyer && (siop_target->flags & TARF_WIDE)) {
230 1.11.2.2 bouyer siop_target->flags |= TARF_ISWIDE;
231 1.11.2.2 bouyer sc->targets[target]->id |= SCNTL3_EWS << 24;
232 1.11.2.2 bouyer } else {
233 1.11.2.2 bouyer siop_target->flags &= ~TARF_ISWIDE;
234 1.11.2.2 bouyer sc->targets[target]->id &= ~(SCNTL3_EWS << 24);
235 1.11.2.2 bouyer }
236 1.11.2.2 bouyer tables->id = htole32(sc->targets[target]->id);
237 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_SCNTL3,
238 1.11.2.2 bouyer (sc->targets[target]->id >> 24) & 0xff);
239 1.11.2.2 bouyer /*
240 1.11.2.2 bouyer * we did reset wide parameters, so fall back to async,
241 1.11.2.2 bouyer * but don't schedule a sync neg, target should initiate it
242 1.11.2.2 bouyer */
243 1.11.2.2 bouyer siop_target->status = TARST_OK;
244 1.11.2.3 bouyer siop_target->offset = siop_target->period = 0;
245 1.11.2.3 bouyer siop_update_xfer_mode(sc, target);
246 1.11.2.2 bouyer siop_wdtr_msg(siop_cmd, 0, (siop_target->flags & TARF_ISWIDE) ?
247 1.11.2.2 bouyer MSG_EXT_WDTR_BUS_16_BIT : MSG_EXT_WDTR_BUS_8_BIT);
248 1.11.2.2 bouyer return SIOP_NEG_MSGOUT;
249 1.11.2.2 bouyer }
250 1.11.2.2 bouyer }
251 1.11.2.2 bouyer
252 1.11.2.2 bouyer int
253 1.11.2.2 bouyer siop_sdtr_neg(siop_cmd)
254 1.11.2.2 bouyer struct siop_cmd *siop_cmd;
255 1.11.2.2 bouyer {
256 1.11.2.2 bouyer struct siop_softc *sc = siop_cmd->siop_sc;
257 1.11.2.2 bouyer struct siop_target *siop_target = siop_cmd->siop_target;
258 1.11.2.3 bouyer int target = siop_cmd->xs->xs_periph->periph_target;
259 1.11.2.2 bouyer int sync, offset, i;
260 1.11.2.2 bouyer int send_msgout = 0;
261 1.11.2.2 bouyer struct siop_xfer_common *tables = &siop_cmd->siop_xfer->tables;
262 1.11.2.2 bouyer
263 1.11.2.2 bouyer sync = tables->msg_in[3];
264 1.11.2.2 bouyer offset = tables->msg_in[4];
265 1.11.2.2 bouyer
266 1.11.2.2 bouyer if (siop_target->status == TARST_SYNC_NEG) {
267 1.11.2.2 bouyer /* we initiated sync negotiation */
268 1.11.2.2 bouyer siop_target->status = TARST_OK;
269 1.11.2.2 bouyer #ifdef DEBUG
270 1.11.2.2 bouyer printf("sdtr: sync %d offset %d\n", sync, offset);
271 1.11.2.2 bouyer #endif
272 1.11.2.2 bouyer if (offset > sc->maxoff || sync < sc->minsync ||
273 1.11.2.2 bouyer sync > sc->maxsync)
274 1.11.2.2 bouyer goto reject;
275 1.11.2.2 bouyer for (i = 0; i < sizeof(scf_period) / sizeof(scf_period[0]);
276 1.11.2.2 bouyer i++) {
277 1.11.2.2 bouyer if (sc->clock_period != scf_period[i].clock)
278 1.11.2.2 bouyer continue;
279 1.11.2.2 bouyer if (scf_period[i].period == sync) {
280 1.11.2.2 bouyer /* ok, found it. we now are sync. */
281 1.11.2.3 bouyer siop_target->offset = offset;
282 1.11.2.3 bouyer siop_target->period = sync;
283 1.11.2.2 bouyer sc->targets[target]->id &=
284 1.11.2.2 bouyer ~(SCNTL3_SCF_MASK << 24);
285 1.11.2.2 bouyer sc->targets[target]->id |= scf_period[i].scf
286 1.11.2.2 bouyer << (24 + SCNTL3_SCF_SHIFT);
287 1.11.2.2 bouyer if (sync < 25) /* Ultra */
288 1.11.2.2 bouyer sc->targets[target]->id |=
289 1.11.2.2 bouyer SCNTL3_ULTRA << 24;
290 1.11.2.2 bouyer else
291 1.11.2.2 bouyer sc->targets[target]->id &=
292 1.11.2.2 bouyer ~(SCNTL3_ULTRA << 24);
293 1.11.2.2 bouyer sc->targets[target]->id &=
294 1.11.2.2 bouyer ~(SXFER_MO_MASK << 8);
295 1.11.2.2 bouyer sc->targets[target]->id |=
296 1.11.2.2 bouyer (offset & SXFER_MO_MASK) << 8;
297 1.11.2.2 bouyer goto end;
298 1.11.2.2 bouyer }
299 1.11.2.2 bouyer }
300 1.11.2.2 bouyer /*
301 1.11.2.2 bouyer * we didn't find it in our table, do async and send reject
302 1.11.2.2 bouyer * msg
303 1.11.2.2 bouyer */
304 1.11.2.2 bouyer reject:
305 1.11.2.2 bouyer send_msgout = 1;
306 1.11.2.2 bouyer tables->t_msgout.count= htole32(1);
307 1.11.2.2 bouyer tables->msg_out[0] = MSG_MESSAGE_REJECT;
308 1.11.2.2 bouyer sc->targets[target]->id &= ~(SCNTL3_SCF_MASK << 24);
309 1.11.2.2 bouyer sc->targets[target]->id &= ~(SCNTL3_ULTRA << 24);
310 1.11.2.2 bouyer sc->targets[target]->id &= ~(SXFER_MO_MASK << 8);
311 1.11.2.3 bouyer siop_target->offset = siop_target->period = 0;
312 1.11.2.2 bouyer } else { /* target initiated sync neg */
313 1.11.2.2 bouyer #ifdef DEBUG
314 1.11.2.2 bouyer printf("sdtr (target): sync %d offset %d\n", sync, offset);
315 1.11.2.2 bouyer #endif
316 1.11.2.2 bouyer if (offset == 0 || sync > sc->maxsync) { /* async */
317 1.11.2.2 bouyer goto async;
318 1.11.2.2 bouyer }
319 1.11.2.2 bouyer if (offset > sc->maxoff)
320 1.11.2.2 bouyer offset = sc->maxoff;
321 1.11.2.2 bouyer if (sync < sc->minsync)
322 1.11.2.2 bouyer sync = sc->minsync;
323 1.11.2.2 bouyer /* look for sync period */
324 1.11.2.2 bouyer for (i = 0; i < sizeof(scf_period) / sizeof(scf_period[0]);
325 1.11.2.2 bouyer i++) {
326 1.11.2.2 bouyer if (sc->clock_period != scf_period[i].clock)
327 1.11.2.2 bouyer continue;
328 1.11.2.2 bouyer if (scf_period[i].period == sync) {
329 1.11.2.2 bouyer /* ok, found it. we now are sync. */
330 1.11.2.3 bouyer siop_target->offset = offset;
331 1.11.2.3 bouyer siop_target->period = sync;
332 1.11.2.2 bouyer sc->targets[target]->id &=
333 1.11.2.2 bouyer ~(SCNTL3_SCF_MASK << 24);
334 1.11.2.2 bouyer sc->targets[target]->id |= scf_period[i].scf
335 1.11.2.2 bouyer << (24 + SCNTL3_SCF_SHIFT);
336 1.11.2.2 bouyer if (sync < 25) /* Ultra */
337 1.11.2.2 bouyer sc->targets[target]->id |=
338 1.11.2.2 bouyer SCNTL3_ULTRA << 24;
339 1.11.2.2 bouyer else
340 1.11.2.2 bouyer sc->targets[target]->id &=
341 1.11.2.2 bouyer ~(SCNTL3_ULTRA << 24);
342 1.11.2.2 bouyer sc->targets[target]->id &=
343 1.11.2.2 bouyer ~(SXFER_MO_MASK << 8);
344 1.11.2.2 bouyer sc->targets[target]->id |=
345 1.11.2.2 bouyer (offset & SXFER_MO_MASK) << 8;
346 1.11.2.2 bouyer siop_sdtr_msg(siop_cmd, 0, sync, offset);
347 1.11.2.2 bouyer send_msgout = 1;
348 1.11.2.2 bouyer goto end;
349 1.11.2.2 bouyer }
350 1.11.2.2 bouyer }
351 1.11.2.2 bouyer async:
352 1.11.2.3 bouyer siop_target->offset = siop_target->period = 0;
353 1.11.2.2 bouyer sc->targets[target]->id &= ~(SCNTL3_SCF_MASK << 24);
354 1.11.2.2 bouyer sc->targets[target]->id &= ~(SCNTL3_ULTRA << 24);
355 1.11.2.2 bouyer sc->targets[target]->id &= ~(SXFER_MO_MASK << 8);
356 1.11.2.2 bouyer siop_sdtr_msg(siop_cmd, 0, 0, 0);
357 1.11.2.2 bouyer send_msgout = 1;
358 1.11.2.2 bouyer }
359 1.11.2.2 bouyer end:
360 1.11.2.3 bouyer if (siop_target->status == TARST_OK)
361 1.11.2.3 bouyer siop_update_xfer_mode(sc, target);
362 1.11.2.2 bouyer #ifdef DEBUG
363 1.11.2.2 bouyer printf("id now 0x%x\n", sc->targets[target]->id);
364 1.11.2.2 bouyer #endif
365 1.11.2.2 bouyer tables->id = htole32(sc->targets[target]->id);
366 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_SCNTL3,
367 1.11.2.2 bouyer (sc->targets[target]->id >> 24) & 0xff);
368 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_SXFER,
369 1.11.2.2 bouyer (sc->targets[target]->id >> 8) & 0xff);
370 1.11.2.2 bouyer if (send_msgout) {
371 1.11.2.2 bouyer return SIOP_NEG_MSGOUT;
372 1.11.2.2 bouyer } else {
373 1.11.2.2 bouyer return SIOP_NEG_ACK;
374 1.11.2.2 bouyer }
375 1.11.2.2 bouyer }
376 1.11.2.2 bouyer
377 1.11.2.2 bouyer void
378 1.11.2.2 bouyer siop_sdtr_msg(siop_cmd, offset, ssync, soff)
379 1.11.2.2 bouyer struct siop_cmd *siop_cmd;
380 1.11.2.2 bouyer int offset;
381 1.11.2.2 bouyer int ssync, soff;
382 1.11.2.2 bouyer {
383 1.11.2.2 bouyer siop_cmd->siop_tables.msg_out[offset + 0] = MSG_EXTENDED;
384 1.11.2.2 bouyer siop_cmd->siop_tables.msg_out[offset + 1] = MSG_EXT_SDTR_LEN;
385 1.11.2.2 bouyer siop_cmd->siop_tables.msg_out[offset + 2] = MSG_EXT_SDTR;
386 1.11.2.2 bouyer siop_cmd->siop_tables.msg_out[offset + 3] = ssync;
387 1.11.2.2 bouyer siop_cmd->siop_tables.msg_out[offset + 4] = soff;
388 1.11.2.2 bouyer siop_cmd->siop_tables.t_msgout.count =
389 1.11.2.2 bouyer htole32(offset + MSG_EXT_SDTR_LEN + 2);
390 1.11.2.2 bouyer }
391 1.11.2.2 bouyer
392 1.11.2.2 bouyer void
393 1.11.2.2 bouyer siop_wdtr_msg(siop_cmd, offset, wide)
394 1.11.2.2 bouyer struct siop_cmd *siop_cmd;
395 1.11.2.2 bouyer int offset;
396 1.11.2.2 bouyer {
397 1.11.2.2 bouyer siop_cmd->siop_tables.msg_out[offset + 0] = MSG_EXTENDED;
398 1.11.2.2 bouyer siop_cmd->siop_tables.msg_out[offset + 1] = MSG_EXT_WDTR_LEN;
399 1.11.2.2 bouyer siop_cmd->siop_tables.msg_out[offset + 2] = MSG_EXT_WDTR;
400 1.11.2.2 bouyer siop_cmd->siop_tables.msg_out[offset + 3] = wide;
401 1.11.2.2 bouyer siop_cmd->siop_tables.t_msgout.count =
402 1.11.2.2 bouyer htole32(offset + MSG_EXT_WDTR_LEN + 2);
403 1.11.2.2 bouyer }
404 1.11.2.2 bouyer
405 1.11.2.2 bouyer void
406 1.11.2.2 bouyer siop_minphys(bp)
407 1.11.2.2 bouyer struct buf *bp;
408 1.11.2.2 bouyer {
409 1.11.2.2 bouyer minphys(bp);
410 1.11.2.2 bouyer }
411 1.11.2.2 bouyer
412 1.11.2.2 bouyer int
413 1.11.2.3 bouyer siop_ioctl(chan, cmd, arg, flag, p)
414 1.11.2.3 bouyer struct scsipi_channel *chan;
415 1.11.2.2 bouyer u_long cmd;
416 1.11.2.2 bouyer caddr_t arg;
417 1.11.2.2 bouyer int flag;
418 1.11.2.2 bouyer struct proc *p;
419 1.11.2.2 bouyer {
420 1.11.2.3 bouyer struct siop_softc *sc = (void *)chan->chan_adapter->adapt_dev;
421 1.11.2.2 bouyer u_int8_t scntl1;
422 1.11.2.2 bouyer int s;
423 1.11.2.2 bouyer
424 1.11.2.2 bouyer switch (cmd) {
425 1.11.2.2 bouyer case SCBUSIORESET:
426 1.11.2.2 bouyer s = splbio();
427 1.11.2.2 bouyer scntl1 = bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_SCNTL1);
428 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_SCNTL1,
429 1.11.2.2 bouyer scntl1 | SCNTL1_RST);
430 1.11.2.2 bouyer /* minimum 25 us, more time won't hurt */
431 1.11.2.2 bouyer delay(100);
432 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_SCNTL1, scntl1);
433 1.11.2.2 bouyer splx(s);
434 1.11.2.2 bouyer return (0);
435 1.11.2.2 bouyer default:
436 1.11.2.2 bouyer return (ENOTTY);
437 1.11.2.2 bouyer }
438 1.11.2.2 bouyer }
439 1.11.2.2 bouyer
440 1.11.2.2 bouyer void
441 1.11.2.2 bouyer siop_sdp(siop_cmd)
442 1.11.2.2 bouyer struct siop_cmd *siop_cmd;
443 1.11.2.2 bouyer {
444 1.11.2.2 bouyer /* save data pointer. Handle async only for now */
445 1.11.2.2 bouyer int offset, dbc, sstat;
446 1.11.2.2 bouyer struct siop_softc *sc = siop_cmd->siop_sc;
447 1.11.2.2 bouyer scr_table_t *table; /* table to patch */
448 1.11.2.2 bouyer
449 1.11.2.2 bouyer if ((siop_cmd->xs->xs_control & (XS_CTL_DATA_OUT | XS_CTL_DATA_IN))
450 1.11.2.2 bouyer == 0)
451 1.11.2.2 bouyer return; /* no data pointers to save */
452 1.11.2.2 bouyer offset = bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_SCRATCHA + 1);
453 1.11.2.2 bouyer if (offset >= SIOP_NSG) {
454 1.11.2.2 bouyer printf("%s: bad offset in siop_sdp (%d)\n",
455 1.11.2.2 bouyer sc->sc_dev.dv_xname, offset);
456 1.11.2.2 bouyer return;
457 1.11.2.2 bouyer }
458 1.11.2.2 bouyer table = &siop_cmd->siop_xfer->tables.data[offset];
459 1.11.2.2 bouyer #ifdef DEBUG_DR
460 1.11.2.2 bouyer printf("sdp: offset %d count=%d addr=0x%x ", offset,
461 1.11.2.2 bouyer table->count, table->addr);
462 1.11.2.2 bouyer #endif
463 1.11.2.2 bouyer dbc = bus_space_read_4(sc->sc_rt, sc->sc_rh, SIOP_DBC) & 0x00ffffff;
464 1.11.2.2 bouyer if (siop_cmd->xs->xs_control & XS_CTL_DATA_OUT) {
465 1.11.2.2 bouyer /* need to account stale data in FIFO */
466 1.11.2.2 bouyer int dfifo = bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_DFIFO);
467 1.11.2.2 bouyer if (sc->features & SF_CHIP_FIFO) {
468 1.11.2.2 bouyer dfifo |= (bus_space_read_1(sc->sc_rt, sc->sc_rh,
469 1.11.2.2 bouyer SIOP_CTEST5) & CTEST5_BOMASK) << 8;
470 1.11.2.2 bouyer dbc += (dfifo - (dbc & 0x3ff)) & 0x3ff;
471 1.11.2.2 bouyer } else {
472 1.11.2.2 bouyer dbc += (dfifo - (dbc & 0x7f)) & 0x7f;
473 1.11.2.2 bouyer }
474 1.11.2.2 bouyer sstat = bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_SSTAT0);
475 1.11.2.2 bouyer if (sstat & SSTAT0_OLF)
476 1.11.2.2 bouyer dbc++;
477 1.11.2.2 bouyer if (sstat & SSTAT0_ORF)
478 1.11.2.2 bouyer dbc++;
479 1.11.2.2 bouyer if (siop_cmd->siop_target->flags & TARF_ISWIDE) {
480 1.11.2.2 bouyer sstat = bus_space_read_1(sc->sc_rt, sc->sc_rh,
481 1.11.2.2 bouyer SIOP_SSTAT2);
482 1.11.2.2 bouyer if (sstat & SSTAT2_OLF1)
483 1.11.2.2 bouyer dbc++;
484 1.11.2.2 bouyer if (sstat & SSTAT2_ORF1)
485 1.11.2.2 bouyer dbc++;
486 1.11.2.2 bouyer }
487 1.11.2.2 bouyer /* clear the FIFO */
488 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_CTEST3,
489 1.11.2.2 bouyer bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_CTEST3) |
490 1.11.2.2 bouyer CTEST3_CLF);
491 1.11.2.2 bouyer }
492 1.11.2.2 bouyer table->addr =
493 1.11.2.2 bouyer htole32(le32toh(table->addr) + le32toh(table->count) - dbc);
494 1.11.2.2 bouyer table->count = htole32(dbc);
495 1.11.2.2 bouyer #ifdef DEBUG_DR
496 1.11.2.2 bouyer printf("now count=%d addr=0x%x\n", table->count, table->addr);
497 1.11.2.2 bouyer #endif
498 1.11.2.2 bouyer }
499 1.11.2.2 bouyer
500 1.11.2.2 bouyer void
501 1.11.2.2 bouyer siop_clearfifo(sc)
502 1.11.2.2 bouyer struct siop_softc *sc;
503 1.11.2.2 bouyer {
504 1.11.2.2 bouyer int timeout = 0;
505 1.11.2.2 bouyer int ctest3 = bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_CTEST3);
506 1.11.2.2 bouyer
507 1.11.2.2 bouyer #ifdef DEBUG_INTR
508 1.11.2.2 bouyer printf("DMA fifo not empty !\n");
509 1.11.2.2 bouyer #endif
510 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_CTEST3,
511 1.11.2.2 bouyer ctest3 | CTEST3_CLF);
512 1.11.2.2 bouyer while ((bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_CTEST3) &
513 1.11.2.2 bouyer CTEST3_CLF) != 0) {
514 1.11.2.2 bouyer delay(1);
515 1.11.2.2 bouyer if (++timeout > 1000) {
516 1.11.2.2 bouyer printf("clear fifo failed\n");
517 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_CTEST3,
518 1.11.2.2 bouyer bus_space_read_1(sc->sc_rt, sc->sc_rh,
519 1.11.2.2 bouyer SIOP_CTEST3) & ~CTEST3_CLF);
520 1.11.2.2 bouyer return;
521 1.11.2.2 bouyer }
522 1.11.2.2 bouyer }
523 1.11.2.2 bouyer }
524 1.11.2.2 bouyer
525 1.11.2.2 bouyer int
526 1.11.2.2 bouyer siop_modechange(sc)
527 1.11.2.2 bouyer struct siop_softc *sc;
528 1.11.2.2 bouyer {
529 1.11.2.2 bouyer int retry;
530 1.11.2.2 bouyer int sist0, sist1, stest2, stest4;
531 1.11.2.2 bouyer for (retry = 0; retry < 5; retry++) {
532 1.11.2.2 bouyer /*
533 1.11.2.2 bouyer * datasheet says to wait 100ms and re-read SIST1,
534 1.11.2.2 bouyer * to check that DIFFSENSE is srable.
535 1.11.2.2 bouyer * We may delay() 5 times for 100ms at interrupt time;
536 1.11.2.2 bouyer * hopefully this will not happen often.
537 1.11.2.2 bouyer */
538 1.11.2.2 bouyer delay(100000);
539 1.11.2.2 bouyer sist0 = bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_SIST0);
540 1.11.2.2 bouyer sist1 = bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_SIST1);
541 1.11.2.2 bouyer if (sist1 & SIEN1_SBMC)
542 1.11.2.2 bouyer continue; /* we got an irq again */
543 1.11.2.2 bouyer stest4 = bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_STEST4) &
544 1.11.2.2 bouyer STEST4_MODE_MASK;
545 1.11.2.2 bouyer stest2 = bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_STEST2);
546 1.11.2.2 bouyer switch(stest4) {
547 1.11.2.2 bouyer case STEST4_MODE_DIF:
548 1.11.2.2 bouyer printf("%s: switching to differential mode\n",
549 1.11.2.2 bouyer sc->sc_dev.dv_xname);
550 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STEST2,
551 1.11.2.2 bouyer stest2 | STEST2_DIF);
552 1.11.2.2 bouyer break;
553 1.11.2.2 bouyer case STEST4_MODE_SE:
554 1.11.2.2 bouyer printf("%s: switching to single-ended mode\n",
555 1.11.2.2 bouyer sc->sc_dev.dv_xname);
556 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STEST2,
557 1.11.2.2 bouyer stest2 & ~STEST2_DIF);
558 1.11.2.2 bouyer break;
559 1.11.2.2 bouyer case STEST4_MODE_LVD:
560 1.11.2.2 bouyer printf("%s: switching to LVD mode\n",
561 1.11.2.2 bouyer sc->sc_dev.dv_xname);
562 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STEST2,
563 1.11.2.2 bouyer stest2 & ~STEST2_DIF);
564 1.11.2.2 bouyer break;
565 1.11.2.2 bouyer default:
566 1.11.2.2 bouyer printf("%s: invalid SCSI mode 0x%x\n",
567 1.11.2.2 bouyer sc->sc_dev.dv_xname, stest4);
568 1.11.2.2 bouyer return 0;
569 1.11.2.2 bouyer }
570 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STEST0,
571 1.11.2.2 bouyer stest4 >> 2);
572 1.11.2.2 bouyer return 1;
573 1.11.2.2 bouyer }
574 1.11.2.2 bouyer printf("%s: timeout waiting for DIFFSENSE to stabilise\n",
575 1.11.2.2 bouyer sc->sc_dev.dv_xname);
576 1.11.2.2 bouyer return 0;
577 1.11.2.2 bouyer }
578 1.11.2.2 bouyer
579 1.11.2.2 bouyer void
580 1.11.2.2 bouyer siop_resetbus(sc)
581 1.11.2.2 bouyer struct siop_softc *sc;
582 1.11.2.2 bouyer {
583 1.11.2.2 bouyer int scntl1;
584 1.11.2.2 bouyer scntl1 = bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_SCNTL1);
585 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_SCNTL1,
586 1.11.2.2 bouyer scntl1 | SCNTL1_RST);
587 1.11.2.2 bouyer /* minimum 25 us, more time won't hurt */
588 1.11.2.2 bouyer delay(100);
589 1.11.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_SCNTL1, scntl1);
590 1.11.2.2 bouyer }
591