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/thread2.h> /* for crit_*() */
36 #include <machine/clock.h>
38 #include <bus/cam/cam.h>
39 #include <bus/cam/cam_ccb.h>
40 #include <bus/cam/cam_sim.h>
41 #include <bus/cam/cam_xpt_sim.h>
42 #include <bus/cam/cam_debug.h>
43 #include <bus/cam/cam_periph.h>
45 #include <bus/cam/scsi/scsi_all.h>
46 #include <bus/cam/scsi/scsi_message.h>
47 #include <bus/cam/scsi/scsi_da.h>
49 #include <sys/kernel.h>
53 #include <bus/ppbus/ppbconf.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);
94 vpo_probe(device_t dev)
99 vpo = DEVTOSOFTC(dev);
100 bzero(vpo, sizeof(struct vpo_data));
102 /* vpo dependent initialisation */
103 vpo->vpo_unit = device_get_unit(dev);
105 /* low level probe */
106 vpoio_set_unit(&vpo->vpo_io, vpo->vpo_unit);
108 /* check ZIP before ZIP+ or imm_probe() will send controls to
109 * the printer or whatelse connected to the port */
110 if ((error = vpoio_probe(dev, &vpo->vpo_io)) == 0) {
113 "Iomega VPI0 Parallel to SCSI interface");
114 } else if ((error = imm_probe(dev, &vpo->vpo_io)) == 0) {
117 "Iomega Matchmaker Parallel to SCSI interface");
129 vpo_attach(device_t dev)
131 struct vpo_data *vpo = DEVTOSOFTC(dev);
132 struct cam_devq *devq;
135 /* low level attachment */
136 if (vpo->vpo_isplus) {
137 if ((error = imm_attach(&vpo->vpo_io)))
140 if ((error = vpoio_attach(&vpo->vpo_io)))
145 ** Now tell the generic SCSI layer
148 devq = cam_simq_alloc(/*maxopenings*/1);
149 /* XXX What about low-level detach on error? */
153 vpo->sim = cam_sim_alloc(vpo_action, vpo_poll, "vpo", vpo,
154 device_get_unit(dev), &sim_mplock,
155 /*untagged*/1, /*tagged*/0, devq);
156 cam_simq_release(devq);
157 if (vpo->sim == NULL) {
161 if (xpt_bus_register(vpo->sim, /*bus*/0) != CAM_SUCCESS) {
162 cam_sim_free(vpo->sim);
168 vpo_cam_rescan(vpo); /* have CAM rescan the bus */
174 vpo_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
180 vpo_cam_rescan(struct vpo_data *vpo)
182 struct cam_path *path;
183 union ccb *ccb = kmalloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO);
185 if (xpt_create_path(&path, xpt_periph, cam_sim_path(vpo->sim), 0, 0)
187 /* A failure is benign as the user can do a manual rescan */
191 xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/);
192 ccb->ccb_h.func_code = XPT_SCAN_BUS;
193 ccb->ccb_h.cbfcnp = vpo_cam_rescan_callback;
194 ccb->crcn.flags = CAM_FLAG_NONE;
197 /* The scan is in progress now. */
204 vpo_intr(struct vpo_data *vpo, struct ccb_scsiio *csio)
213 if (vpo->vpo_isplus) {
214 error = imm_do_scsi(&vpo->vpo_io, VP0_INITIATOR,
215 csio->ccb_h.target_id,
216 (char *)&csio->cdb_io.cdb_bytes, csio->cdb_len,
217 (char *)csio->data_ptr, csio->dxfer_len,
218 &vpo->vpo_stat, &vpo->vpo_count, &vpo->vpo_error);
220 error = vpoio_do_scsi(&vpo->vpo_io, VP0_INITIATOR,
221 csio->ccb_h.target_id,
222 (char *)&csio->cdb_io.cdb_bytes, csio->cdb_len,
223 (char *)csio->data_ptr, csio->dxfer_len,
224 &vpo->vpo_stat, &vpo->vpo_count, &vpo->vpo_error);
228 kprintf("vpo_do_scsi = %d, status = 0x%x, count = %d, vpo_error = %d\n",
229 error, vpo->vpo_stat, vpo->vpo_count, vpo->vpo_error);
231 /* dump of command */
232 for (i=0; i<csio->cdb_len; i++)
233 kprintf("%x ", ((char *)&csio->cdb_io.cdb_bytes)[i]);
239 /* connection to ppbus interrupted */
240 csio->ccb_h.status = CAM_CMD_TIMEOUT;
244 /* if a timeout occured, no sense */
245 if (vpo->vpo_error) {
246 if (vpo->vpo_error != VP0_ESELECT_TIMEOUT)
247 kprintf("vpo%d: VP0 error/timeout (%d)\n",
248 vpo->vpo_unit, vpo->vpo_error);
250 csio->ccb_h.status = CAM_CMD_TIMEOUT;
254 /* check scsi status */
255 if (vpo->vpo_stat != SCSI_STATUS_OK) {
256 csio->scsi_status = vpo->vpo_stat;
258 /* check if we have to sense the drive */
259 if ((vpo->vpo_stat & SCSI_STATUS_CHECK_COND) != 0) {
261 vpo->vpo_sense.cmd.opcode = REQUEST_SENSE;
262 vpo->vpo_sense.cmd.length = csio->sense_len;
263 vpo->vpo_sense.cmd.control = 0;
265 if (vpo->vpo_isplus) {
266 error = imm_do_scsi(&vpo->vpo_io, VP0_INITIATOR,
267 csio->ccb_h.target_id,
268 (char *)&vpo->vpo_sense.cmd,
269 sizeof(vpo->vpo_sense.cmd),
270 (char *)&csio->sense_data, csio->sense_len,
271 &vpo->vpo_sense.stat, &vpo->vpo_sense.count,
274 error = vpoio_do_scsi(&vpo->vpo_io, VP0_INITIATOR,
275 csio->ccb_h.target_id,
276 (char *)&vpo->vpo_sense.cmd,
277 sizeof(vpo->vpo_sense.cmd),
278 (char *)&csio->sense_data, csio->sense_len,
279 &vpo->vpo_sense.stat, &vpo->vpo_sense.count,
285 kprintf("(sense) vpo_do_scsi = %d, status = 0x%x, count = %d, vpo_error = %d\n",
286 error, vpo->vpo_sense.stat, vpo->vpo_sense.count, vpo->vpo_error);
289 /* check sense return status */
290 if (error == 0 && vpo->vpo_sense.stat == SCSI_STATUS_OK) {
292 csio->ccb_h.status = CAM_AUTOSNS_VALID | CAM_SCSI_STATUS_ERROR;
293 csio->sense_resid = csio->sense_len - vpo->vpo_sense.count;
296 /* dump of sense info */
298 for (i=0; i<vpo->vpo_sense.count; i++)
299 kprintf("%x ", ((char *)&csio->sense_data)[i]);
305 csio->ccb_h.status = CAM_AUTOSENSE_FAIL;
309 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR;
315 csio->resid = csio->dxfer_len - vpo->vpo_count;
316 csio->ccb_h.status = CAM_REQ_CMP;
325 vpo_action(struct cam_sim *sim, union ccb *ccb)
328 struct vpo_data *vpo = (struct vpo_data *)sim->softc;
330 switch (ccb->ccb_h.func_code) {
333 struct ccb_scsiio *csio;
338 kprintf("vpo%d: XPT_SCSI_IO (0x%x) request\n",
339 vpo->vpo_unit, csio->cdb_io.cdb_bytes[0]);
348 case XPT_CALC_GEOMETRY:
350 struct ccb_calc_geometry *ccg;
355 kprintf("vpo%d: XPT_CALC_GEOMETRY (bs=%d,vs=%ju,c=%d,h=%d,spt=%d) request\n",
358 (uintmax_t)ccg->volume_size,
361 ccg->secs_per_track);
365 ccg->secs_per_track = 32;
366 ccg->cylinders = ccg->volume_size /
367 (ccg->heads * ccg->secs_per_track);
369 ccb->ccb_h.status = CAM_REQ_CMP;
373 case XPT_RESET_BUS: /* Reset the specified SCSI bus */
377 kprintf("vpo%d: XPT_RESET_BUS request\n", vpo->vpo_unit);
380 if (vpo->vpo_isplus) {
381 if (imm_reset_bus(&vpo->vpo_io)) {
382 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
387 if (vpoio_reset_bus(&vpo->vpo_io)) {
388 ccb->ccb_h.status = CAM_REQ_CMP_ERR;
394 ccb->ccb_h.status = CAM_REQ_CMP;
398 case XPT_PATH_INQ: /* Path routing inquiry */
400 struct ccb_pathinq *cpi = &ccb->cpi;
403 kprintf("vpo%d: XPT_PATH_INQ request\n", vpo->vpo_unit);
405 cpi->version_num = 1; /* XXX??? */
406 cpi->hba_inquiry = 0;
407 cpi->target_sprt = 0;
409 cpi->hba_eng_cnt = 0;
412 cpi->initiator_id = VP0_INITIATOR;
413 cpi->bus_id = sim->bus_id;
414 cpi->base_transfer_speed = 93;
415 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
416 strncpy(cpi->hba_vid, "Iomega", HBA_IDLEN);
417 strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN);
418 cpi->unit_number = sim->unit_number;
420 cpi->ccb_h.status = CAM_REQ_CMP;
425 ccb->ccb_h.status = CAM_REQ_INVALID;
434 vpo_poll(struct cam_sim *sim)
436 /* The ZIP is actually always polled throw vpo_action() */
441 * Always create a "vpo" device under ppbus. Use device_identify to
442 * create the static entry for any attached ppbus.
444 static devclass_t vpo_devclass;
446 static device_method_t vpo_methods[] = {
447 /* device interface */
448 DEVMETHOD(device_identify, bus_generic_identify),
449 DEVMETHOD(device_probe, vpo_probe),
450 DEVMETHOD(device_attach, vpo_attach),
454 static driver_t vpo_driver = {
457 sizeof(struct vpo_data),
459 DRIVER_MODULE(vpo, ppbus, vpo_driver, vpo_devclass, NULL, NULL);