vpo.c revision 114451
128219Smsmith/*- 255939Snsouch * Copyright (c) 1997, 1998, 1999 Nicolas Souchu 328219Smsmith * All rights reserved. 428219Smsmith * 528219Smsmith * Redistribution and use in source and binary forms, with or without 628219Smsmith * modification, are permitted provided that the following conditions 728219Smsmith * are met: 828219Smsmith * 1. Redistributions of source code must retain the above copyright 928219Smsmith * notice, this list of conditions and the following disclaimer. 1028219Smsmith * 2. Redistributions in binary form must reproduce the above copyright 1128219Smsmith * notice, this list of conditions and the following disclaimer in the 1228219Smsmith * documentation and/or other materials provided with the distribution. 1328219Smsmith * 1428219Smsmith * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1528219Smsmith * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1628219Smsmith * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1728219Smsmith * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1828219Smsmith * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1928219Smsmith * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2028219Smsmith * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2128219Smsmith * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2228219Smsmith * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2328219Smsmith * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2428219Smsmith * SUCH DAMAGE. 2528219Smsmith * 2650477Speter * $FreeBSD: head/sys/dev/ppbus/vpo.c 114451 2003-05-01 19:46:21Z jhb $ 2728219Smsmith */ 2828219Smsmith 2928219Smsmith#include <sys/param.h> 3028219Smsmith#include <sys/systm.h> 3155939Snsouch#include <sys/module.h> 3255939Snsouch#include <sys/bus.h> 3359018Sn_hibma#include <sys/malloc.h> 3428219Smsmith 3539520Snsouch#include <cam/cam.h> 3639520Snsouch#include <cam/cam_ccb.h> 3739520Snsouch#include <cam/cam_sim.h> 3839520Snsouch#include <cam/cam_xpt_sim.h> 3939520Snsouch#include <cam/cam_debug.h> 4059018Sn_hibma#include <cam/cam_periph.h> 4139520Snsouch 4239520Snsouch#include <cam/scsi/scsi_all.h> 4339520Snsouch#include <cam/scsi/scsi_message.h> 4439520Snsouch#include <cam/scsi/scsi_da.h> 4539520Snsouch 4628219Smsmith#include <sys/kernel.h> 4728219Smsmith 4842475Snsouch#include "opt_vpo.h" 4942475Snsouch 5028219Smsmith#include <dev/ppbus/ppbconf.h> 5138061Smsmith#include <dev/ppbus/vpoio.h> 5228219Smsmith 5355939Snsouch#include "ppbus_if.h" 5455939Snsouch 5538061Smsmithstruct vpo_sense { 5638061Smsmith struct scsi_sense cmd; 5738061Smsmith unsigned int stat; 5838061Smsmith unsigned int count; 5938061Smsmith}; 6028219Smsmith 6138061Smsmithstruct vpo_data { 6238061Smsmith unsigned short vpo_unit; 6328219Smsmith 6438061Smsmith int vpo_stat; 6538061Smsmith int vpo_count; 6638061Smsmith int vpo_error; 6728219Smsmith 6839134Snsouch int vpo_isplus; 6939134Snsouch 7039520Snsouch struct cam_sim *sim; 7139520Snsouch 7238061Smsmith struct vpo_sense vpo_sense; 7338061Smsmith 7438061Smsmith struct vpoio_data vpo_io; /* interface to low level functions */ 7538061Smsmith}; 7638061Smsmith 7755939Snsouch#define DEVTOSOFTC(dev) \ 7855939Snsouch ((struct vpo_data *)device_get_softc(dev)) 7928219Smsmith 8055939Snsouch/* cam related functions */ 8155939Snsouchstatic void vpo_action(struct cam_sim *sim, union ccb *ccb); 8255939Snsouchstatic void vpo_poll(struct cam_sim *sim); 8359018Sn_hibmastatic void vpo_cam_rescan_callback(struct cam_periph *periph, 8459018Sn_hibma union ccb *ccb); 8559018Sn_hibmastatic void vpo_cam_rescan(struct vpo_data *vpo); 8655939Snsouch 8756455Speterstatic void 8856455Spetervpo_identify(driver_t *driver, device_t parent) 8956455Speter{ 9056455Speter 9194154Sticso BUS_ADD_CHILD(parent, 0, "vpo", -1); 9256455Speter} 9356455Speter 9428219Smsmith/* 9555939Snsouch * vpo_probe() 9628219Smsmith */ 9755939Snsouchstatic int 9855939Snsouchvpo_probe(device_t dev) 9928219Smsmith{ 10028219Smsmith struct vpo_data *vpo; 10155939Snsouch int error; 10228219Smsmith 10355939Snsouch vpo = DEVTOSOFTC(dev); 10428219Smsmith bzero(vpo, sizeof(struct vpo_data)); 10528219Smsmith 10628219Smsmith /* vpo dependent initialisation */ 10755939Snsouch vpo->vpo_unit = device_get_unit(dev); 10828219Smsmith 10938061Smsmith /* low level probe */ 11038061Smsmith vpoio_set_unit(&vpo->vpo_io, vpo->vpo_unit); 11138061Smsmith 11239520Snsouch /* check ZIP before ZIP+ or imm_probe() will send controls to 11339520Snsouch * the printer or whatelse connected to the port */ 11455939Snsouch if ((error = vpoio_probe(dev, &vpo->vpo_io)) == 0) { 11539520Snsouch vpo->vpo_isplus = 0; 11655939Snsouch device_set_desc(dev, 11755939Snsouch "Iomega VPI0 Parallel to SCSI interface"); 11855939Snsouch } else if ((error = imm_probe(dev, &vpo->vpo_io)) == 0) { 11939134Snsouch vpo->vpo_isplus = 1; 12055939Snsouch device_set_desc(dev, 12155939Snsouch "Iomega Matchmaker Parallel to SCSI interface"); 12239520Snsouch } else { 12355939Snsouch return (error); 12428219Smsmith } 12528219Smsmith 12655939Snsouch return (0); 12728219Smsmith} 12828219Smsmith 12928219Smsmith/* 13055939Snsouch * vpo_attach() 13128219Smsmith */ 13228219Smsmithstatic int 13355939Snsouchvpo_attach(device_t dev) 13428219Smsmith{ 13555939Snsouch struct vpo_data *vpo = DEVTOSOFTC(dev); 13639520Snsouch struct cam_devq *devq; 13755939Snsouch int error; 13828219Smsmith 13938061Smsmith /* low level attachment */ 14039134Snsouch if (vpo->vpo_isplus) { 14155939Snsouch if ((error = imm_attach(&vpo->vpo_io))) 14255939Snsouch return (error); 14339134Snsouch } else { 14455939Snsouch if ((error = vpoio_attach(&vpo->vpo_io))) 14555939Snsouch return (error); 14639134Snsouch } 14738061Smsmith 14828219Smsmith /* 14939520Snsouch ** Now tell the generic SCSI layer 15039520Snsouch ** about our bus. 15139520Snsouch */ 15239520Snsouch devq = cam_simq_alloc(/*maxopenings*/1); 15339520Snsouch /* XXX What about low-level detach on error? */ 15439520Snsouch if (devq == NULL) 15555939Snsouch return (ENXIO); 15628219Smsmith 15755939Snsouch vpo->sim = cam_sim_alloc(vpo_action, vpo_poll, "vpo", vpo, 15855939Snsouch device_get_unit(dev), 15939520Snsouch /*untagged*/1, /*tagged*/0, devq); 16039520Snsouch if (vpo->sim == NULL) { 16139520Snsouch cam_simq_free(devq); 16255939Snsouch return (ENXIO); 16339520Snsouch } 16438061Smsmith 16539520Snsouch if (xpt_bus_register(vpo->sim, /*bus*/0) != CAM_SUCCESS) { 16639520Snsouch cam_sim_free(vpo->sim, /*free_devq*/TRUE); 16755939Snsouch return (ENXIO); 16839520Snsouch } 16928219Smsmith 17039520Snsouch /* all went ok */ 17128219Smsmith 17259018Sn_hibma vpo_cam_rescan(vpo); /* have CAM rescan the bus */ 17359018Sn_hibma 17455939Snsouch return (0); 17528219Smsmith} 17628219Smsmith 17759018Sn_hibmastatic void 17859018Sn_hibmavpo_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) 17959018Sn_hibma{ 18059018Sn_hibma free(ccb, M_TEMP); 18159018Sn_hibma} 18259018Sn_hibma 18359018Sn_hibmastatic void 18459018Sn_hibmavpo_cam_rescan(struct vpo_data *vpo) 18559018Sn_hibma{ 18659018Sn_hibma struct cam_path *path; 187111119Simp union ccb *ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO); 18859018Sn_hibma 18959018Sn_hibma if (xpt_create_path(&path, xpt_periph, cam_sim_path(vpo->sim), 0, 0) 19059018Sn_hibma != CAM_REQ_CMP) { 19159018Sn_hibma /* A failure is benign as the user can do a manual rescan */ 19259018Sn_hibma return; 19359018Sn_hibma } 19459018Sn_hibma 19559018Sn_hibma xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/); 19659018Sn_hibma ccb->ccb_h.func_code = XPT_SCAN_BUS; 19759018Sn_hibma ccb->ccb_h.cbfcnp = vpo_cam_rescan_callback; 19859018Sn_hibma ccb->crcn.flags = CAM_FLAG_NONE; 19959018Sn_hibma xpt_action(ccb); 20059018Sn_hibma 20159018Sn_hibma /* The scan is in progress now. */ 20259018Sn_hibma} 20359018Sn_hibma 20428219Smsmith/* 20538061Smsmith * vpo_intr() 20628219Smsmith */ 20738061Smsmithstatic void 20839520Snsouchvpo_intr(struct vpo_data *vpo, struct ccb_scsiio *csio) 20928219Smsmith{ 21041591Sarchie int errno; /* error in errno.h */ 21139520Snsouch int s; 21241591Sarchie#ifdef VP0_DEBUG 21341591Sarchie int i; 21441591Sarchie#endif 21528219Smsmith 21639520Snsouch s = splcam(); 21728219Smsmith 21839134Snsouch if (vpo->vpo_isplus) { 21939134Snsouch errno = imm_do_scsi(&vpo->vpo_io, VP0_INITIATOR, 22039520Snsouch csio->ccb_h.target_id, 22139520Snsouch (char *)&csio->cdb_io.cdb_bytes, csio->cdb_len, 22239520Snsouch (char *)csio->data_ptr, csio->dxfer_len, 22339520Snsouch &vpo->vpo_stat, &vpo->vpo_count, &vpo->vpo_error); 22439134Snsouch } else { 22539134Snsouch errno = vpoio_do_scsi(&vpo->vpo_io, VP0_INITIATOR, 22639520Snsouch csio->ccb_h.target_id, 22739520Snsouch (char *)&csio->cdb_io.cdb_bytes, csio->cdb_len, 22839520Snsouch (char *)csio->data_ptr, csio->dxfer_len, 22939520Snsouch &vpo->vpo_stat, &vpo->vpo_count, &vpo->vpo_error); 23039134Snsouch } 23128219Smsmith 23228257Smsmith#ifdef VP0_DEBUG 23328257Smsmith printf("vpo_do_scsi = %d, status = 0x%x, count = %d, vpo_error = %d\n", 23428257Smsmith errno, vpo->vpo_stat, vpo->vpo_count, vpo->vpo_error); 23539520Snsouch 23639520Snsouch /* dump of command */ 23739520Snsouch for (i=0; i<csio->cdb_len; i++) 23839520Snsouch printf("%x ", ((char *)&csio->cdb_io.cdb_bytes)[i]); 23939520Snsouch 24039520Snsouch printf("\n"); 24128257Smsmith#endif 24228257Smsmith 24328257Smsmith if (errno) { 24428257Smsmith /* connection to ppbus interrupted */ 24539520Snsouch csio->ccb_h.status = CAM_CMD_TIMEOUT; 24628257Smsmith goto error; 24728257Smsmith } 24828219Smsmith 24928257Smsmith /* if a timeout occured, no sense */ 25028257Smsmith if (vpo->vpo_error) { 25139520Snsouch if (vpo->vpo_error != VP0_ESELECT_TIMEOUT) 25239520Snsouch printf("vpo%d: VP0 error/timeout (%d)\n", 25339520Snsouch vpo->vpo_unit, vpo->vpo_error); 25439520Snsouch 25539520Snsouch csio->ccb_h.status = CAM_CMD_TIMEOUT; 25628257Smsmith goto error; 25728257Smsmith } 25828219Smsmith 25939520Snsouch /* check scsi status */ 26039520Snsouch if (vpo->vpo_stat != SCSI_STATUS_OK) { 26139520Snsouch csio->scsi_status = vpo->vpo_stat; 26228219Smsmith 26339520Snsouch /* check if we have to sense the drive */ 26439520Snsouch if ((vpo->vpo_stat & SCSI_STATUS_CHECK_COND) != 0) { 26528219Smsmith 26639520Snsouch vpo->vpo_sense.cmd.opcode = REQUEST_SENSE; 26739520Snsouch vpo->vpo_sense.cmd.length = csio->sense_len; 26828219Smsmith vpo->vpo_sense.cmd.control = 0; 26928219Smsmith 27039134Snsouch if (vpo->vpo_isplus) { 27139134Snsouch errno = imm_do_scsi(&vpo->vpo_io, VP0_INITIATOR, 27239520Snsouch csio->ccb_h.target_id, 27339134Snsouch (char *)&vpo->vpo_sense.cmd, 27439134Snsouch sizeof(vpo->vpo_sense.cmd), 27539520Snsouch (char *)&csio->sense_data, csio->sense_len, 27639134Snsouch &vpo->vpo_sense.stat, &vpo->vpo_sense.count, 27739134Snsouch &vpo->vpo_error); 27839134Snsouch } else { 27939134Snsouch errno = vpoio_do_scsi(&vpo->vpo_io, VP0_INITIATOR, 28039520Snsouch csio->ccb_h.target_id, 28139134Snsouch (char *)&vpo->vpo_sense.cmd, 28239134Snsouch sizeof(vpo->vpo_sense.cmd), 28339520Snsouch (char *)&csio->sense_data, csio->sense_len, 28439134Snsouch &vpo->vpo_sense.stat, &vpo->vpo_sense.count, 28539134Snsouch &vpo->vpo_error); 28639134Snsouch } 28739520Snsouch 28828219Smsmith 28939520Snsouch#ifdef VP0_DEBUG 29039520Snsouch printf("(sense) vpo_do_scsi = %d, status = 0x%x, count = %d, vpo_error = %d\n", 29139520Snsouch errno, vpo->vpo_sense.stat, vpo->vpo_sense.count, vpo->vpo_error); 29239520Snsouch#endif 29328257Smsmith 29439520Snsouch /* check sense return status */ 29539520Snsouch if (errno == 0 && vpo->vpo_sense.stat == SCSI_STATUS_OK) { 29639520Snsouch /* sense ok */ 29739520Snsouch csio->ccb_h.status = CAM_AUTOSNS_VALID | CAM_SCSI_STATUS_ERROR; 29839520Snsouch csio->sense_resid = csio->sense_len - vpo->vpo_sense.count; 29928219Smsmith 30039520Snsouch#ifdef VP0_DEBUG 30139520Snsouch /* dump of sense info */ 30239520Snsouch printf("(sense) "); 30339520Snsouch for (i=0; i<vpo->vpo_sense.count; i++) 30439520Snsouch printf("%x ", ((char *)&csio->sense_data)[i]); 30539520Snsouch printf("\n"); 30639520Snsouch#endif 30739520Snsouch 30839520Snsouch } else { 30939520Snsouch /* sense failed */ 31039520Snsouch csio->ccb_h.status = CAM_AUTOSENSE_FAIL; 31139520Snsouch } 31239520Snsouch } else { 31339520Snsouch /* no sense */ 31439520Snsouch csio->ccb_h.status = CAM_SCSI_STATUS_ERROR; 31539520Snsouch } 31639520Snsouch 31739520Snsouch goto error; 31828219Smsmith } 31928219Smsmith 32039520Snsouch csio->resid = csio->dxfer_len - vpo->vpo_count; 32139520Snsouch csio->ccb_h.status = CAM_REQ_CMP; 32228219Smsmith 32328219Smsmitherror: 32439520Snsouch splx(s); 32528219Smsmith 32628219Smsmith return; 32728219Smsmith} 32828219Smsmith 32939520Snsouchstatic void 33039520Snsouchvpo_action(struct cam_sim *sim, union ccb *ccb) 33128219Smsmith{ 33228219Smsmith 33339520Snsouch struct vpo_data *vpo = (struct vpo_data *)sim->softc; 33428219Smsmith 33539520Snsouch switch (ccb->ccb_h.func_code) { 33639520Snsouch case XPT_SCSI_IO: 33739520Snsouch { 33839520Snsouch struct ccb_scsiio *csio; 33939520Snsouch 34039520Snsouch csio = &ccb->csio; 34139520Snsouch 34239520Snsouch#ifdef VP0_DEBUG 34339520Snsouch printf("vpo%d: XPT_SCSI_IO (0x%x) request\n", 34439520Snsouch vpo->vpo_unit, csio->cdb_io.cdb_bytes[0]); 34539520Snsouch#endif 34639520Snsouch 34739520Snsouch vpo_intr(vpo, csio); 34839520Snsouch 34939520Snsouch xpt_done(ccb); 35039520Snsouch 35139520Snsouch break; 35228219Smsmith } 35339520Snsouch case XPT_CALC_GEOMETRY: 35439520Snsouch { 35539520Snsouch struct ccb_calc_geometry *ccg; 35628219Smsmith 35739520Snsouch ccg = &ccb->ccg; 35839520Snsouch 35939520Snsouch#ifdef VP0_DEBUG 360114451Sjhb printf("vpo%d: XPT_CALC_GEOMETRY (bs=%d,vs=%jd,c=%d,h=%d,spt=%d) request\n", 36151952Sn_hibma vpo->vpo_unit, 36251952Sn_hibma ccg->block_size, 363114451Sjhb (intmax_t)ccg->volume_size, 36451952Sn_hibma ccg->cylinders, 36551952Sn_hibma ccg->heads, 36651952Sn_hibma ccg->secs_per_track); 36739520Snsouch#endif 36851952Sn_hibma 36939520Snsouch ccg->heads = 64; 37039520Snsouch ccg->secs_per_track = 32; 37151952Sn_hibma ccg->cylinders = ccg->volume_size / 37251952Sn_hibma (ccg->heads * ccg->secs_per_track); 37339520Snsouch 37439520Snsouch ccb->ccb_h.status = CAM_REQ_CMP; 37539520Snsouch xpt_done(ccb); 37639520Snsouch break; 37728219Smsmith } 37839520Snsouch case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 37939520Snsouch { 38028219Smsmith 38128257Smsmith#ifdef VP0_DEBUG 38239520Snsouch printf("vpo%d: XPT_RESET_BUS request\n", vpo->vpo_unit); 38328219Smsmith#endif 38428219Smsmith 38539520Snsouch if (vpo->vpo_isplus) { 38639520Snsouch if (imm_reset_bus(&vpo->vpo_io)) { 38739520Snsouch ccb->ccb_h.status = CAM_REQ_CMP_ERR; 38839520Snsouch xpt_done(ccb); 38939520Snsouch return; 39039520Snsouch } 39139520Snsouch } else { 39239520Snsouch if (vpoio_reset_bus(&vpo->vpo_io)) { 39339520Snsouch ccb->ccb_h.status = CAM_REQ_CMP_ERR; 39439520Snsouch xpt_done(ccb); 39539520Snsouch return; 39639520Snsouch } 39739520Snsouch } 39839520Snsouch 39939520Snsouch ccb->ccb_h.status = CAM_REQ_CMP; 40039520Snsouch xpt_done(ccb); 40139520Snsouch break; 40228219Smsmith } 40339520Snsouch case XPT_PATH_INQ: /* Path routing inquiry */ 40439520Snsouch { 40539520Snsouch struct ccb_pathinq *cpi = &ccb->cpi; 40639520Snsouch 40739520Snsouch#ifdef VP0_DEBUG 40839520Snsouch printf("vpo%d: XPT_PATH_INQ request\n", vpo->vpo_unit); 40939520Snsouch#endif 41039520Snsouch cpi->version_num = 1; /* XXX??? */ 41142441Snsouch cpi->hba_inquiry = 0; 41242441Snsouch cpi->target_sprt = 0; 41342441Snsouch cpi->hba_misc = 0; 41442441Snsouch cpi->hba_eng_cnt = 0; 41539520Snsouch cpi->max_target = 7; 41639520Snsouch cpi->max_lun = 0; 41739520Snsouch cpi->initiator_id = VP0_INITIATOR; 41839520Snsouch cpi->bus_id = sim->bus_id; 41946586Sken cpi->base_transfer_speed = 93; 42039520Snsouch strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 42139520Snsouch strncpy(cpi->hba_vid, "Iomega", HBA_IDLEN); 42239520Snsouch strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); 42339520Snsouch cpi->unit_number = sim->unit_number; 42428219Smsmith 42539520Snsouch cpi->ccb_h.status = CAM_REQ_CMP; 42639520Snsouch xpt_done(ccb); 42739520Snsouch break; 42839520Snsouch } 42939520Snsouch default: 43039520Snsouch ccb->ccb_h.status = CAM_REQ_INVALID; 43139520Snsouch xpt_done(ccb); 43239520Snsouch break; 43339520Snsouch } 43428219Smsmith 43539520Snsouch return; 43639520Snsouch} 43728219Smsmith 43839520Snsouchstatic void 43939520Snsouchvpo_poll(struct cam_sim *sim) 44039520Snsouch{ 44139520Snsouch /* The ZIP is actually always polled throw vpo_action() */ 44239520Snsouch return; 44328219Smsmith} 44455939Snsouch 44556455Speterstatic devclass_t vpo_devclass; 44656455Speter 44756455Speterstatic device_method_t vpo_methods[] = { 44856455Speter /* device interface */ 44956455Speter DEVMETHOD(device_identify, vpo_identify), 45056455Speter DEVMETHOD(device_probe, vpo_probe), 45156455Speter DEVMETHOD(device_attach, vpo_attach), 45256455Speter 45356455Speter { 0, 0 } 45456455Speter}; 45556455Speter 45656455Speterstatic driver_t vpo_driver = { 45756455Speter "vpo", 45856455Speter vpo_methods, 45956455Speter sizeof(struct vpo_data), 46056455Speter}; 46155939SnsouchDRIVER_MODULE(vpo, ppbus, vpo_driver, vpo_devclass, 0, 0); 462