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
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
31 #include <sys/param.h>
32 #include <sys/systm.h>
33 #include <sys/module.h>
36 #include <sys/mutex.h>
37 #include <sys/malloc.h>
40 #include <cam/cam_ccb.h>
41 #include <cam/cam_sim.h>
42 #include <cam/cam_xpt_sim.h>
43 #include <cam/cam_debug.h>
44 #include <cam/cam_periph.h>
46 #include <cam/scsi/scsi_all.h>
47 #include <cam/scsi/scsi_message.h>
48 #include <cam/scsi/scsi_da.h>
50 #include <sys/kernel.h>
54 #include <dev/ppbus/ppbconf.h>
55 #include <dev/ppbus/vpoio.h>
60 struct scsi_sense cmd;
75 struct vpo_sense vpo_sense;
77 struct vpoio_data vpo_io; /* interface to low level functions */
80 #define DEVTOSOFTC(dev) \
81 ((struct vpo_data *)device_get_softc(dev))
83 /* cam related functions */
84 static void vpo_action(struct cam_sim *sim, union ccb *ccb);
85 static void vpo_poll(struct cam_sim *sim);
86 static void vpo_cam_rescan_callback(struct cam_periph *periph,
88 static void vpo_cam_rescan(struct vpo_data *vpo);
91 vpo_identify(driver_t *driver, device_t parent)
96 dev = device_find_child(parent, "vpo", -1);
98 BUS_ADD_CHILD(parent, 0, "vpo", -1);
105 vpo_probe(device_t dev)
107 device_t ppbus = device_get_parent(dev);
108 struct vpo_data *vpo;
111 vpo = DEVTOSOFTC(dev);
114 /* check ZIP before ZIP+ or imm_probe() will send controls to
115 * the printer or whatelse connected to the port */
117 if ((error = vpoio_probe(dev, &vpo->vpo_io)) == 0) {
120 "Iomega VPI0 Parallel to SCSI interface");
121 } else if ((error = imm_probe(dev, &vpo->vpo_io)) == 0) {
124 "Iomega Matchmaker Parallel to SCSI interface");
138 vpo_attach(device_t dev)
140 struct vpo_data *vpo = DEVTOSOFTC(dev);
141 device_t ppbus = device_get_parent(dev);
142 struct ppb_data *ppb = device_get_softc(ppbus); /* XXX: layering */
143 struct cam_devq *devq;
146 /* low level attachment */
147 if (vpo->vpo_isplus) {
148 if ((error = imm_attach(&vpo->vpo_io)))
151 if ((error = vpoio_attach(&vpo->vpo_io)))
156 ** Now tell the generic SCSI layer
159 devq = cam_simq_alloc(/*maxopenings*/1);
160 /* XXX What about low-level detach on error? */
164 vpo->sim = cam_sim_alloc(vpo_action, vpo_poll, "vpo", vpo,
165 device_get_unit(dev), ppb->ppc_lock,
166 /*untagged*/1, /*tagged*/0, devq);
167 if (vpo->sim == NULL) {
173 if (xpt_bus_register(vpo->sim, dev, /*bus*/0) != CAM_SUCCESS) {
174 cam_sim_free(vpo->sim, /*free_devq*/TRUE);
182 vpo_cam_rescan(vpo); /* have CAM rescan the bus */
188 vpo_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
195 vpo_cam_rescan(struct vpo_data *vpo)
197 struct cam_path *path;
198 union ccb *ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO);
200 if (xpt_create_path(&path, xpt_periph, cam_sim_path(vpo->sim), 0, 0)
202 /* A failure is benign as the user can do a manual rescan */
207 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/);
208 ccb->ccb_h.func_code = XPT_SCAN_BUS;
209 ccb->ccb_h.cbfcnp = vpo_cam_rescan_callback;
210 ccb->crcn.flags = CAM_FLAG_NONE;
213 /* The scan is in progress now. */
220 vpo_intr(struct vpo_data *vpo, struct ccb_scsiio *csio)
222 int errno; /* error in errno.h */
227 if (vpo->vpo_isplus) {
228 errno = imm_do_scsi(&vpo->vpo_io, VP0_INITIATOR,
229 csio->ccb_h.target_id,
230 (char *)&csio->cdb_io.cdb_bytes, csio->cdb_len,
231 (char *)csio->data_ptr, csio->dxfer_len,
232 &vpo->vpo_stat, &vpo->vpo_count, &vpo->vpo_error);
234 errno = vpoio_do_scsi(&vpo->vpo_io, VP0_INITIATOR,
235 csio->ccb_h.target_id,
236 (char *)&csio->cdb_io.cdb_bytes, csio->cdb_len,
237 (char *)csio->data_ptr, csio->dxfer_len,
238 &vpo->vpo_stat, &vpo->vpo_count, &vpo->vpo_error);
242 printf("vpo_do_scsi = %d, status = 0x%x, count = %d, vpo_error = %d\n",
243 errno, vpo->vpo_stat, vpo->vpo_count, vpo->vpo_error);
245 /* dump of command */
246 for (i=0; i<csio->cdb_len; i++)
247 printf("%x ", ((char *)&csio->cdb_io.cdb_bytes)[i]);
253 /* connection to ppbus interrupted */
254 csio->ccb_h.status = CAM_CMD_TIMEOUT;
258 /* if a timeout occured, no sense */
259 if (vpo->vpo_error) {
260 if (vpo->vpo_error != VP0_ESELECT_TIMEOUT)
261 device_printf(vpo->vpo_dev, "VP0 error/timeout (%d)\n",
264 csio->ccb_h.status = CAM_CMD_TIMEOUT;
268 /* check scsi status */
269 if (vpo->vpo_stat != SCSI_STATUS_OK) {
270 csio->scsi_status = vpo->vpo_stat;
272 /* check if we have to sense the drive */
273 if ((vpo->vpo_stat & SCSI_STATUS_CHECK_COND) != 0) {
275 vpo->vpo_sense.cmd.opcode = REQUEST_SENSE;
276 vpo->vpo_sense.cmd.length = csio->sense_len;
277 vpo->vpo_sense.cmd.control = 0;
279 if (vpo->vpo_isplus) {
280 errno = imm_do_scsi(&vpo->vpo_io, VP0_INITIATOR,
281 csio->ccb_h.target_id,
282 (char *)&vpo->vpo_sense.cmd,
283 sizeof(vpo->vpo_sense.cmd),
284 (char *)&csio->sense_data, csio->sense_len,
285 &vpo->vpo_sense.stat, &vpo->vpo_sense.count,
288 errno = vpoio_do_scsi(&vpo->vpo_io, VP0_INITIATOR,
289 csio->ccb_h.target_id,
290 (char *)&vpo->vpo_sense.cmd,
291 sizeof(vpo->vpo_sense.cmd),
292 (char *)&csio->sense_data, csio->sense_len,
293 &vpo->vpo_sense.stat, &vpo->vpo_sense.count,
299 printf("(sense) vpo_do_scsi = %d, status = 0x%x, count = %d, vpo_error = %d\n",
300 errno, vpo->vpo_sense.stat, vpo->vpo_sense.count, vpo->vpo_error);
303 /* check sense return status */
304 if (errno == 0 && vpo->vpo_sense.stat == SCSI_STATUS_OK) {
306 csio->ccb_h.status = CAM_AUTOSNS_VALID | CAM_SCSI_STATUS_ERROR;
307 csio->sense_resid = csio->sense_len - vpo->vpo_sense.count;
310 /* dump of sense info */
312 for (i=0; i<vpo->vpo_sense.count; i++)
313 printf("%x ", ((char *)&csio->sense_data)[i]);
319 csio->ccb_h.status = CAM_AUTOSENSE_FAIL;
323 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR;
329 csio->resid = csio->dxfer_len - vpo->vpo_count;
330 csio->ccb_h.status = CAM_REQ_CMP;
334 vpo_action(struct cam_sim *sim, union ccb *ccb)
336 struct vpo_data *vpo = (struct vpo_data *)sim->softc;
338 device_t ppbus = device_get_parent(vpo->vpo_dev);
340 ppb_assert_locked(ppbus);
342 switch (ccb->ccb_h.func_code) {
345 struct ccb_scsiio *csio;
350 device_printf(vpo->vpo_dev, "XPT_SCSI_IO (0x%x) request\n",
351 csio->cdb_io.cdb_bytes[0]);
360 case XPT_CALC_GEOMETRY:
362 struct ccb_calc_geometry *ccg;
367 device_printf(vpo->vpo_dev, "XPT_CALC_GEOMETRY (bs=%d,vs=%jd,c=%d,h=%d,spt=%d) request\n",
369 (intmax_t)ccg->volume_size,
372 ccg->secs_per_track);
376 ccg->secs_per_track = 32;
377 ccg->cylinders = ccg->volume_size /
378 (ccg->heads * ccg->secs_per_track);
380 ccb->ccb_h.status = CAM_REQ_CMP;
384 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
388 device_printf(vpo->vpo_dev, "XPT_RESET_BUS request\n");
391 if (vpo->vpo_isplus) {
392 if (imm_reset_bus(&vpo->vpo_io)) {
393 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
398 if (vpoio_reset_bus(&vpo->vpo_io)) {
399 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
405 ccb->ccb_h.status = CAM_REQ_CMP;
409 case XPT_PATH_INQ: /* Path routing inquiry */
411 struct ccb_pathinq *cpi = &ccb->cpi;
414 device_printf(vpo->vpo_dev, "XPT_PATH_INQ request\n");
416 cpi->version_num = 1; /* XXX??? */
417 cpi->hba_inquiry = 0;
418 cpi->target_sprt = 0;
420 cpi->hba_eng_cnt = 0;
423 cpi->initiator_id = VP0_INITIATOR;
424 cpi->bus_id = sim->bus_id;
425 cpi->base_transfer_speed = 93;
426 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
427 strncpy(cpi->hba_vid, "Iomega", HBA_IDLEN);
428 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
429 cpi->unit_number = sim->unit_number;
430 cpi->transport = XPORT_PPB;
431 cpi->transport_version = 0;
433 cpi->ccb_h.status = CAM_REQ_CMP;
438 ccb->ccb_h.status = CAM_REQ_INVALID;
447 vpo_poll(struct cam_sim *sim)
450 /* The ZIP is actually always polled throw vpo_action(). */
453 static devclass_t vpo_devclass;
455 static device_method_t vpo_methods[] = {
456 /* device interface */
457 DEVMETHOD(device_identify, vpo_identify),
458 DEVMETHOD(device_probe, vpo_probe),
459 DEVMETHOD(device_attach, vpo_attach),
464 static driver_t vpo_driver = {
467 sizeof(struct vpo_data),
469 DRIVER_MODULE(vpo, ppbus, vpo_driver, vpo_devclass, 0, 0);
470 MODULE_DEPEND(vpo, ppbus, 1, 1, 1);
471 MODULE_DEPEND(vpo, cam, 1, 1, 1);