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 */
36 #include <machine/clock.h>
39 #include <cam/cam_ccb.h>
40 #include <cam/cam_sim.h>
41 #include <cam/cam_xpt_sim.h>
42 #include <cam/cam_debug.h>
43 #include <cam/cam_periph.h>
45 #include <cam/scsi/scsi_all.h>
46 #include <cam/scsi/scsi_message.h>
47 #include <cam/scsi/scsi_da.h>
49 #include <sys/kernel.h>
53 #include <dev/ppbus/ppbconf.h>
54 #include <dev/ppbus/vpoio.h>
59 struct scsi_sense cmd;
65 unsigned short vpo_unit;
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)
94 BUS_ADD_CHILD(parent, 0, "vpo", 0);
101 vpo_probe(device_t dev)
103 struct vpo_data *vpo;
106 vpo = DEVTOSOFTC(dev);
107 bzero(vpo, sizeof(struct vpo_data));
109 /* vpo dependent initialisation */
110 vpo->vpo_unit = device_get_unit(dev);
112 /* low level probe */
113 vpoio_set_unit(&vpo->vpo_io, vpo->vpo_unit);
115 /* check ZIP before ZIP+ or imm_probe() will send controls to
116 * 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");
136 vpo_attach(device_t dev)
138 struct vpo_data *vpo = DEVTOSOFTC(dev);
139 struct cam_devq *devq;
142 /* low level attachment */
143 if (vpo->vpo_isplus) {
144 if ((error = imm_attach(&vpo->vpo_io)))
147 if ((error = vpoio_attach(&vpo->vpo_io)))
152 ** Now tell the generic SCSI layer
155 devq = cam_simq_alloc(/*maxopenings*/1);
156 /* XXX What about low-level detach on error? */
160 vpo->sim = cam_sim_alloc(vpo_action, vpo_poll, "vpo", vpo,
161 device_get_unit(dev),
162 /*untagged*/1, /*tagged*/0, devq);
163 if (vpo->sim == NULL) {
168 if (xpt_bus_register(vpo->sim, /*bus*/0) != CAM_SUCCESS) {
169 cam_sim_free(vpo->sim, /*free_devq*/TRUE);
175 vpo_cam_rescan(vpo); /* have CAM rescan the bus */
181 vpo_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
187 vpo_cam_rescan(struct vpo_data *vpo)
189 struct cam_path *path;
190 union ccb *ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK);
192 bzero(ccb, sizeof(union ccb));
194 if (xpt_create_path(&path, xpt_periph, cam_sim_path(vpo->sim), 0, 0)
196 /* A failure is benign as the user can do a manual rescan */
200 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/);
201 ccb->ccb_h.func_code = XPT_SCAN_BUS;
202 ccb->ccb_h.cbfcnp = vpo_cam_rescan_callback;
203 ccb->crcn.flags = CAM_FLAG_NONE;
206 /* The scan is in progress now. */
213 vpo_intr(struct vpo_data *vpo, struct ccb_scsiio *csio)
215 int errno; /* error in errno.h */
223 if (vpo->vpo_isplus) {
224 errno = imm_do_scsi(&vpo->vpo_io, VP0_INITIATOR,
225 csio->ccb_h.target_id,
226 (char *)&csio->cdb_io.cdb_bytes, csio->cdb_len,
227 (char *)csio->data_ptr, csio->dxfer_len,
228 &vpo->vpo_stat, &vpo->vpo_count, &vpo->vpo_error);
230 errno = vpoio_do_scsi(&vpo->vpo_io, VP0_INITIATOR,
231 csio->ccb_h.target_id,
232 (char *)&csio->cdb_io.cdb_bytes, csio->cdb_len,
233 (char *)csio->data_ptr, csio->dxfer_len,
234 &vpo->vpo_stat, &vpo->vpo_count, &vpo->vpo_error);
238 printf("vpo_do_scsi = %d, status = 0x%x, count = %d, vpo_error = %d\n",
239 errno, vpo->vpo_stat, vpo->vpo_count, vpo->vpo_error);
241 /* dump of command */
242 for (i=0; i<csio->cdb_len; i++)
243 printf("%x ", ((char *)&csio->cdb_io.cdb_bytes)[i]);
249 /* connection to ppbus interrupted */
250 csio->ccb_h.status = CAM_CMD_TIMEOUT;
254 /* if a timeout occured, no sense */
255 if (vpo->vpo_error) {
256 if (vpo->vpo_error != VP0_ESELECT_TIMEOUT)
257 printf("vpo%d: VP0 error/timeout (%d)\n",
258 vpo->vpo_unit, vpo->vpo_error);
260 csio->ccb_h.status = CAM_CMD_TIMEOUT;
264 /* check scsi status */
265 if (vpo->vpo_stat != SCSI_STATUS_OK) {
266 csio->scsi_status = vpo->vpo_stat;
268 /* check if we have to sense the drive */
269 if ((vpo->vpo_stat & SCSI_STATUS_CHECK_COND) != 0) {
271 vpo->vpo_sense.cmd.opcode = REQUEST_SENSE;
272 vpo->vpo_sense.cmd.length = csio->sense_len;
273 vpo->vpo_sense.cmd.control = 0;
275 if (vpo->vpo_isplus) {
276 errno = imm_do_scsi(&vpo->vpo_io, VP0_INITIATOR,
277 csio->ccb_h.target_id,
278 (char *)&vpo->vpo_sense.cmd,
279 sizeof(vpo->vpo_sense.cmd),
280 (char *)&csio->sense_data, csio->sense_len,
281 &vpo->vpo_sense.stat, &vpo->vpo_sense.count,
284 errno = vpoio_do_scsi(&vpo->vpo_io, VP0_INITIATOR,
285 csio->ccb_h.target_id,
286 (char *)&vpo->vpo_sense.cmd,
287 sizeof(vpo->vpo_sense.cmd),
288 (char *)&csio->sense_data, csio->sense_len,
289 &vpo->vpo_sense.stat, &vpo->vpo_sense.count,
295 printf("(sense) vpo_do_scsi = %d, status = 0x%x, count = %d, vpo_error = %d\n",
296 errno, vpo->vpo_sense.stat, vpo->vpo_sense.count, vpo->vpo_error);
299 /* check sense return status */
300 if (errno == 0 && vpo->vpo_sense.stat == SCSI_STATUS_OK) {
302 csio->ccb_h.status = CAM_AUTOSNS_VALID | CAM_SCSI_STATUS_ERROR;
303 csio->sense_resid = csio->sense_len - vpo->vpo_sense.count;
306 /* dump of sense info */
308 for (i=0; i<vpo->vpo_sense.count; i++)
309 printf("%x ", ((char *)&csio->sense_data)[i]);
315 csio->ccb_h.status = CAM_AUTOSENSE_FAIL;
319 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR;
325 csio->resid = csio->dxfer_len - vpo->vpo_count;
326 csio->ccb_h.status = CAM_REQ_CMP;
335 vpo_action(struct cam_sim *sim, union ccb *ccb)
338 struct vpo_data *vpo = (struct vpo_data *)sim->softc;
340 switch (ccb->ccb_h.func_code) {
343 struct ccb_scsiio *csio;
348 printf("vpo%d: XPT_SCSI_IO (0x%x) request\n",
349 vpo->vpo_unit, csio->cdb_io.cdb_bytes[0]);
358 case XPT_CALC_GEOMETRY:
360 struct ccb_calc_geometry *ccg;
365 printf("vpo%d: XPT_CALC_GEOMETRY (bs=%d,vs=%d,c=%d,h=%d,spt=%d) request\n",
371 ccg->secs_per_track);
375 ccg->secs_per_track = 32;
376 ccg->cylinders = ccg->volume_size /
377 (ccg->heads * ccg->secs_per_track);
379 ccb->ccb_h.status = CAM_REQ_CMP;
383 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
387 printf("vpo%d: XPT_RESET_BUS request\n", vpo->vpo_unit);
390 if (vpo->vpo_isplus) {
391 if (imm_reset_bus(&vpo->vpo_io)) {
392 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
397 if (vpoio_reset_bus(&vpo->vpo_io)) {
398 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
404 ccb->ccb_h.status = CAM_REQ_CMP;
408 case XPT_PATH_INQ: /* Path routing inquiry */
410 struct ccb_pathinq *cpi = &ccb->cpi;
413 printf("vpo%d: XPT_PATH_INQ request\n", vpo->vpo_unit);
415 cpi->version_num = 1; /* XXX??? */
416 cpi->hba_inquiry = 0;
417 cpi->target_sprt = 0;
419 cpi->hba_eng_cnt = 0;
422 cpi->initiator_id = VP0_INITIATOR;
423 cpi->bus_id = sim->bus_id;
424 cpi->base_transfer_speed = 93;
425 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
426 strncpy(cpi->hba_vid, "Iomega", HBA_IDLEN);
427 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
428 cpi->unit_number = sim->unit_number;
430 cpi->ccb_h.status = CAM_REQ_CMP;
435 ccb->ccb_h.status = CAM_REQ_INVALID;
444 vpo_poll(struct cam_sim *sim)
446 /* The ZIP is actually always polled throw vpo_action() */
450 static devclass_t vpo_devclass;
452 static device_method_t vpo_methods[] = {
453 /* device interface */
454 DEVMETHOD(device_identify, vpo_identify),
455 DEVMETHOD(device_probe, vpo_probe),
456 DEVMETHOD(device_attach, vpo_attach),
461 static driver_t vpo_driver = {
464 sizeof(struct vpo_data),
466 DRIVER_MODULE(vpo, ppbus, vpo_driver, vpo_devclass, 0, 0);