2 * Copyright (c) 1997, 1998, 1999 Nicolas Souchu
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/sys/dev/ppbus/vpo.c,v 1.20.2.1 2000/05/07 21:08:18 n_hibma Exp $
29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/module.h>
33 #include <sys/malloc.h>
34 #include <sys/devicestat.h> /* for struct devstat */
35 #include <sys/thread2.h> /* for crit_*() */
37 #include <machine/clock.h>
39 #include <bus/cam/cam.h>
40 #include <bus/cam/cam_ccb.h>
41 #include <bus/cam/cam_sim.h>
42 #include <bus/cam/cam_xpt_sim.h>
43 #include <bus/cam/cam_debug.h>
44 #include <bus/cam/cam_periph.h>
46 #include <bus/cam/scsi/scsi_all.h>
47 #include <bus/cam/scsi/scsi_message.h>
48 #include <bus/cam/scsi/scsi_da.h>
50 #include <sys/kernel.h>
54 #include <bus/ppbus/ppbconf.h>
60 struct scsi_sense cmd;
66 unsigned short vpo_unit;
76 struct vpo_sense vpo_sense;
78 struct vpoio_data vpo_io; /* interface to low level functions */
81 #define DEVTOSOFTC(dev) \
82 ((struct vpo_data *)device_get_softc(dev))
84 /* cam related functions */
85 static void vpo_action(struct cam_sim *sim, union ccb *ccb);
86 static void vpo_poll(struct cam_sim *sim);
87 static void vpo_cam_rescan_callback(struct cam_periph *periph,
89 static void vpo_cam_rescan(struct vpo_data *vpo);
95 vpo_probe(device_t dev)
100 vpo = DEVTOSOFTC(dev);
101 bzero(vpo, sizeof(struct vpo_data));
103 /* vpo dependent initialisation */
104 vpo->vpo_unit = device_get_unit(dev);
106 /* low level probe */
107 vpoio_set_unit(&vpo->vpo_io, vpo->vpo_unit);
109 /* check ZIP before ZIP+ or imm_probe() will send controls to
110 * the printer or whatelse connected to the port */
111 if ((error = vpoio_probe(dev, &vpo->vpo_io)) == 0) {
114 "Iomega VPI0 Parallel to SCSI interface");
115 } else if ((error = imm_probe(dev, &vpo->vpo_io)) == 0) {
118 "Iomega Matchmaker Parallel to SCSI interface");
130 vpo_attach(device_t dev)
132 struct vpo_data *vpo = DEVTOSOFTC(dev);
133 struct cam_devq *devq;
136 /* low level attachment */
137 if (vpo->vpo_isplus) {
138 if ((error = imm_attach(&vpo->vpo_io)))
141 if ((error = vpoio_attach(&vpo->vpo_io)))
146 ** Now tell the generic SCSI layer
149 devq = cam_simq_alloc(/*maxopenings*/1);
150 /* XXX What about low-level detach on error? */
154 vpo->sim = cam_sim_alloc(vpo_action, vpo_poll, "vpo", vpo,
155 device_get_unit(dev), &sim_mplock,
156 /*untagged*/1, /*tagged*/0, devq);
157 cam_simq_release(devq);
158 if (vpo->sim == NULL) {
162 if (xpt_bus_register(vpo->sim, /*bus*/0) != CAM_SUCCESS) {
163 cam_sim_free(vpo->sim);
169 vpo_cam_rescan(vpo); /* have CAM rescan the bus */
175 vpo_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
181 vpo_cam_rescan(struct vpo_data *vpo)
183 struct cam_path *path;
184 union ccb *ccb = kmalloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO);
186 if (xpt_create_path(&path, xpt_periph, cam_sim_path(vpo->sim), 0, 0)
188 /* A failure is benign as the user can do a manual rescan */
192 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/);
193 ccb->ccb_h.func_code = XPT_SCAN_BUS;
194 ccb->ccb_h.cbfcnp = vpo_cam_rescan_callback;
195 ccb->crcn.flags = CAM_FLAG_NONE;
198 /* The scan is in progress now. */
205 vpo_intr(struct vpo_data *vpo, struct ccb_scsiio *csio)
214 if (vpo->vpo_isplus) {
215 error = imm_do_scsi(&vpo->vpo_io, VP0_INITIATOR,
216 csio->ccb_h.target_id,
217 (char *)&csio->cdb_io.cdb_bytes, csio->cdb_len,
218 (char *)csio->data_ptr, csio->dxfer_len,
219 &vpo->vpo_stat, &vpo->vpo_count, &vpo->vpo_error);
221 error = vpoio_do_scsi(&vpo->vpo_io, VP0_INITIATOR,
222 csio->ccb_h.target_id,
223 (char *)&csio->cdb_io.cdb_bytes, csio->cdb_len,
224 (char *)csio->data_ptr, csio->dxfer_len,
225 &vpo->vpo_stat, &vpo->vpo_count, &vpo->vpo_error);
229 kprintf("vpo_do_scsi = %d, status = 0x%x, count = %d, vpo_error = %d\n",
230 error, vpo->vpo_stat, vpo->vpo_count, vpo->vpo_error);
232 /* dump of command */
233 for (i=0; i<csio->cdb_len; i++)
234 kprintf("%x ", ((char *)&csio->cdb_io.cdb_bytes)[i]);
240 /* connection to ppbus interrupted */
241 csio->ccb_h.status = CAM_CMD_TIMEOUT;
245 /* if a timeout occured, no sense */
246 if (vpo->vpo_error) {
247 if (vpo->vpo_error != VP0_ESELECT_TIMEOUT)
248 kprintf("vpo%d: VP0 error/timeout (%d)\n",
249 vpo->vpo_unit, vpo->vpo_error);
251 csio->ccb_h.status = CAM_CMD_TIMEOUT;
255 /* check scsi status */
256 if (vpo->vpo_stat != SCSI_STATUS_OK) {
257 csio->scsi_status = vpo->vpo_stat;
259 /* check if we have to sense the drive */
260 if ((vpo->vpo_stat & SCSI_STATUS_CHECK_COND) != 0) {
262 vpo->vpo_sense.cmd.opcode = REQUEST_SENSE;
263 vpo->vpo_sense.cmd.length = csio->sense_len;
264 vpo->vpo_sense.cmd.control = 0;
266 if (vpo->vpo_isplus) {
267 error = imm_do_scsi(&vpo->vpo_io, VP0_INITIATOR,
268 csio->ccb_h.target_id,
269 (char *)&vpo->vpo_sense.cmd,
270 sizeof(vpo->vpo_sense.cmd),
271 (char *)&csio->sense_data, csio->sense_len,
272 &vpo->vpo_sense.stat, &vpo->vpo_sense.count,
275 error = vpoio_do_scsi(&vpo->vpo_io, VP0_INITIATOR,
276 csio->ccb_h.target_id,
277 (char *)&vpo->vpo_sense.cmd,
278 sizeof(vpo->vpo_sense.cmd),
279 (char *)&csio->sense_data, csio->sense_len,
280 &vpo->vpo_sense.stat, &vpo->vpo_sense.count,
286 kprintf("(sense) vpo_do_scsi = %d, status = 0x%x, count = %d, vpo_error = %d\n",
287 error, vpo->vpo_sense.stat, vpo->vpo_sense.count, vpo->vpo_error);
290 /* check sense return status */
291 if (error == 0 && vpo->vpo_sense.stat == SCSI_STATUS_OK) {
293 csio->ccb_h.status = CAM_AUTOSNS_VALID | CAM_SCSI_STATUS_ERROR;
294 csio->sense_resid = csio->sense_len - vpo->vpo_sense.count;
297 /* dump of sense info */
299 for (i=0; i<vpo->vpo_sense.count; i++)
300 kprintf("%x ", ((char *)&csio->sense_data)[i]);
306 csio->ccb_h.status = CAM_AUTOSENSE_FAIL;
310 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR;
316 csio->resid = csio->dxfer_len - vpo->vpo_count;
317 csio->ccb_h.status = CAM_REQ_CMP;
326 vpo_action(struct cam_sim *sim, union ccb *ccb)
329 struct vpo_data *vpo = (struct vpo_data *)sim->softc;
331 switch (ccb->ccb_h.func_code) {
334 struct ccb_scsiio *csio;
339 kprintf("vpo%d: XPT_SCSI_IO (0x%x) request\n",
340 vpo->vpo_unit, csio->cdb_io.cdb_bytes[0]);
349 case XPT_CALC_GEOMETRY:
351 struct ccb_calc_geometry *ccg;
356 kprintf("vpo%d: XPT_CALC_GEOMETRY (bs=%d,vs=%ju,c=%d,h=%d,spt=%d) request\n",
359 (uintmax_t)ccg->volume_size,
362 ccg->secs_per_track);
366 ccg->secs_per_track = 32;
367 ccg->cylinders = ccg->volume_size /
368 (ccg->heads * ccg->secs_per_track);
370 ccb->ccb_h.status = CAM_REQ_CMP;
374 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
378 kprintf("vpo%d: XPT_RESET_BUS request\n", vpo->vpo_unit);
381 if (vpo->vpo_isplus) {
382 if (imm_reset_bus(&vpo->vpo_io)) {
383 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
388 if (vpoio_reset_bus(&vpo->vpo_io)) {
389 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
395 ccb->ccb_h.status = CAM_REQ_CMP;
399 case XPT_PATH_INQ: /* Path routing inquiry */
401 struct ccb_pathinq *cpi = &ccb->cpi;
404 kprintf("vpo%d: XPT_PATH_INQ request\n", vpo->vpo_unit);
406 cpi->version_num = 1; /* XXX??? */
407 cpi->hba_inquiry = 0;
408 cpi->target_sprt = 0;
410 cpi->hba_eng_cnt = 0;
413 cpi->initiator_id = VP0_INITIATOR;
414 cpi->bus_id = sim->bus_id;
415 cpi->base_transfer_speed = 93;
416 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
417 strncpy(cpi->hba_vid, "Iomega", HBA_IDLEN);
418 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
419 cpi->unit_number = sim->unit_number;
421 cpi->ccb_h.status = CAM_REQ_CMP;
426 ccb->ccb_h.status = CAM_REQ_INVALID;
435 vpo_poll(struct cam_sim *sim)
437 /* The ZIP is actually always polled throw vpo_action() */
442 * Always create a "vpo" device under ppbus. Use device_identify to
443 * create the static entry for any attached ppbus.
445 static devclass_t vpo_devclass;
447 static device_method_t vpo_methods[] = {
448 /* device interface */
449 DEVMETHOD(device_identify, bus_generic_identify),
450 DEVMETHOD(device_probe, vpo_probe),
451 DEVMETHOD(device_attach, vpo_attach),
455 static driver_t vpo_driver = {
458 sizeof(struct vpo_data),
460 DRIVER_MODULE(vpo, ppbus, vpo_driver, vpo_devclass, NULL, NULL);