Current Path : /sys/dev/ppbus/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/dev/ppbus/vpo.c |
/*- * Copyright (c) 1997, 1998, 1999 Nicolas Souchu * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ #include <sys/cdefs.h> __FBSDID("$FreeBSD: release/9.1.0/sys/dev/ppbus/vpo.c 230800 2012-01-31 01:51:30Z attilio $"); #include <sys/param.h> #include <sys/systm.h> #include <sys/module.h> #include <sys/bus.h> #include <sys/lock.h> #include <sys/mutex.h> #include <sys/malloc.h> #include <cam/cam.h> #include <cam/cam_ccb.h> #include <cam/cam_sim.h> #include <cam/cam_xpt_sim.h> #include <cam/cam_debug.h> #include <cam/cam_periph.h> #include <cam/scsi/scsi_all.h> #include <cam/scsi/scsi_message.h> #include <cam/scsi/scsi_da.h> #include <sys/kernel.h> #include "opt_vpo.h" #include <dev/ppbus/ppbconf.h> #include <dev/ppbus/vpoio.h> #include "ppbus_if.h" struct vpo_sense { struct scsi_sense cmd; unsigned int stat; unsigned int count; }; struct vpo_data { device_t vpo_dev; int vpo_stat; int vpo_count; int vpo_error; int vpo_isplus; struct cam_sim *sim; struct vpo_sense vpo_sense; struct vpoio_data vpo_io; /* interface to low level functions */ }; #define DEVTOSOFTC(dev) \ ((struct vpo_data *)device_get_softc(dev)) /* cam related functions */ static void vpo_action(struct cam_sim *sim, union ccb *ccb); static void vpo_poll(struct cam_sim *sim); static void vpo_identify(driver_t *driver, device_t parent) { device_t dev; dev = device_find_child(parent, "vpo", -1); if (!dev) BUS_ADD_CHILD(parent, 0, "vpo", -1); } /* * vpo_probe() */ static int vpo_probe(device_t dev) { device_t ppbus = device_get_parent(dev); struct vpo_data *vpo; int error; vpo = DEVTOSOFTC(dev); vpo->vpo_dev = dev; /* check ZIP before ZIP+ or imm_probe() will send controls to * the printer or whatelse connected to the port */ ppb_lock(ppbus); if ((error = vpoio_probe(dev, &vpo->vpo_io)) == 0) { vpo->vpo_isplus = 0; device_set_desc(dev, "Iomega VPI0 Parallel to SCSI interface"); } else if ((error = imm_probe(dev, &vpo->vpo_io)) == 0) { vpo->vpo_isplus = 1; device_set_desc(dev, "Iomega Matchmaker Parallel to SCSI interface"); } else { ppb_unlock(ppbus); return (error); } ppb_unlock(ppbus); return (0); } /* * vpo_attach() */ static int vpo_attach(device_t dev) { struct vpo_data *vpo = DEVTOSOFTC(dev); device_t ppbus = device_get_parent(dev); struct ppb_data *ppb = device_get_softc(ppbus); /* XXX: layering */ struct cam_devq *devq; int error; /* low level attachment */ if (vpo->vpo_isplus) { if ((error = imm_attach(&vpo->vpo_io))) return (error); } else { if ((error = vpoio_attach(&vpo->vpo_io))) return (error); } /* ** Now tell the generic SCSI layer ** about our bus. */ devq = cam_simq_alloc(/*maxopenings*/1); /* XXX What about low-level detach on error? */ if (devq == NULL) return (ENXIO); vpo->sim = cam_sim_alloc(vpo_action, vpo_poll, "vpo", vpo, device_get_unit(dev), ppb->ppc_lock, /*untagged*/1, /*tagged*/0, devq); if (vpo->sim == NULL) { cam_simq_free(devq); return (ENXIO); } ppb_lock(ppbus); if (xpt_bus_register(vpo->sim, dev, /*bus*/0) != CAM_SUCCESS) { cam_sim_free(vpo->sim, /*free_devq*/TRUE); ppb_unlock(ppbus); return (ENXIO); } ppb_unlock(ppbus); return (0); } /* * vpo_intr() */ static void vpo_intr(struct vpo_data *vpo, struct ccb_scsiio *csio) { int errno; /* error in errno.h */ #ifdef VP0_DEBUG int i; #endif if (vpo->vpo_isplus) { errno = imm_do_scsi(&vpo->vpo_io, VP0_INITIATOR, csio->ccb_h.target_id, (char *)&csio->cdb_io.cdb_bytes, csio->cdb_len, (char *)csio->data_ptr, csio->dxfer_len, &vpo->vpo_stat, &vpo->vpo_count, &vpo->vpo_error); } else { errno = vpoio_do_scsi(&vpo->vpo_io, VP0_INITIATOR, csio->ccb_h.target_id, (char *)&csio->cdb_io.cdb_bytes, csio->cdb_len, (char *)csio->data_ptr, csio->dxfer_len, &vpo->vpo_stat, &vpo->vpo_count, &vpo->vpo_error); } #ifdef VP0_DEBUG printf("vpo_do_scsi = %d, status = 0x%x, count = %d, vpo_error = %d\n", errno, vpo->vpo_stat, vpo->vpo_count, vpo->vpo_error); /* dump of command */ for (i=0; i<csio->cdb_len; i++) printf("%x ", ((char *)&csio->cdb_io.cdb_bytes)[i]); printf("\n"); #endif if (errno) { /* connection to ppbus interrupted */ csio->ccb_h.status = CAM_CMD_TIMEOUT; return; } /* if a timeout occured, no sense */ if (vpo->vpo_error) { if (vpo->vpo_error != VP0_ESELECT_TIMEOUT) device_printf(vpo->vpo_dev, "VP0 error/timeout (%d)\n", vpo->vpo_error); csio->ccb_h.status = CAM_CMD_TIMEOUT; return; } /* check scsi status */ if (vpo->vpo_stat != SCSI_STATUS_OK) { csio->scsi_status = vpo->vpo_stat; /* check if we have to sense the drive */ if ((vpo->vpo_stat & SCSI_STATUS_CHECK_COND) != 0) { vpo->vpo_sense.cmd.opcode = REQUEST_SENSE; vpo->vpo_sense.cmd.length = csio->sense_len; vpo->vpo_sense.cmd.control = 0; if (vpo->vpo_isplus) { errno = imm_do_scsi(&vpo->vpo_io, VP0_INITIATOR, csio->ccb_h.target_id, (char *)&vpo->vpo_sense.cmd, sizeof(vpo->vpo_sense.cmd), (char *)&csio->sense_data, csio->sense_len, &vpo->vpo_sense.stat, &vpo->vpo_sense.count, &vpo->vpo_error); } else { errno = vpoio_do_scsi(&vpo->vpo_io, VP0_INITIATOR, csio->ccb_h.target_id, (char *)&vpo->vpo_sense.cmd, sizeof(vpo->vpo_sense.cmd), (char *)&csio->sense_data, csio->sense_len, &vpo->vpo_sense.stat, &vpo->vpo_sense.count, &vpo->vpo_error); } #ifdef VP0_DEBUG printf("(sense) vpo_do_scsi = %d, status = 0x%x, count = %d, vpo_error = %d\n", errno, vpo->vpo_sense.stat, vpo->vpo_sense.count, vpo->vpo_error); #endif /* check sense return status */ if (errno == 0 && vpo->vpo_sense.stat == SCSI_STATUS_OK) { /* sense ok */ csio->ccb_h.status = CAM_AUTOSNS_VALID | CAM_SCSI_STATUS_ERROR; csio->sense_resid = csio->sense_len - vpo->vpo_sense.count; #ifdef VP0_DEBUG /* dump of sense info */ printf("(sense) "); for (i=0; i<vpo->vpo_sense.count; i++) printf("%x ", ((char *)&csio->sense_data)[i]); printf("\n"); #endif } else { /* sense failed */ csio->ccb_h.status = CAM_AUTOSENSE_FAIL; } } else { /* no sense */ csio->ccb_h.status = CAM_SCSI_STATUS_ERROR; } return; } csio->resid = csio->dxfer_len - vpo->vpo_count; csio->ccb_h.status = CAM_REQ_CMP; } static void vpo_action(struct cam_sim *sim, union ccb *ccb) { struct vpo_data *vpo = (struct vpo_data *)sim->softc; ppb_assert_locked(device_get_parent(vpo->vpo_dev)); switch (ccb->ccb_h.func_code) { case XPT_SCSI_IO: { struct ccb_scsiio *csio; csio = &ccb->csio; #ifdef VP0_DEBUG device_printf(vpo->vpo_dev, "XPT_SCSI_IO (0x%x) request\n", csio->cdb_io.cdb_bytes[0]); #endif vpo_intr(vpo, csio); xpt_done(ccb); break; } case XPT_CALC_GEOMETRY: { struct ccb_calc_geometry *ccg; ccg = &ccb->ccg; #ifdef VP0_DEBUG device_printf(vpo->vpo_dev, "XPT_CALC_GEOMETRY (bs=%d,vs=%jd,c=%d,h=%d,spt=%d) request\n", ccg->block_size, (intmax_t)ccg->volume_size, ccg->cylinders, ccg->heads, ccg->secs_per_track); #endif ccg->heads = 64; ccg->secs_per_track = 32; ccg->cylinders = ccg->volume_size / (ccg->heads * ccg->secs_per_track); ccb->ccb_h.status = CAM_REQ_CMP; xpt_done(ccb); break; } case XPT_RESET_BUS: /* Reset the specified SCSI bus */ { #ifdef VP0_DEBUG device_printf(vpo->vpo_dev, "XPT_RESET_BUS request\n"); #endif if (vpo->vpo_isplus) { if (imm_reset_bus(&vpo->vpo_io)) { ccb->ccb_h.status = CAM_REQ_CMP_ERR; xpt_done(ccb); return; } } else { if (vpoio_reset_bus(&vpo->vpo_io)) { ccb->ccb_h.status = CAM_REQ_CMP_ERR; xpt_done(ccb); return; } } ccb->ccb_h.status = CAM_REQ_CMP; xpt_done(ccb); break; } case XPT_PATH_INQ: /* Path routing inquiry */ { struct ccb_pathinq *cpi = &ccb->cpi; #ifdef VP0_DEBUG device_printf(vpo->vpo_dev, "XPT_PATH_INQ request\n"); #endif cpi->version_num = 1; /* XXX??? */ cpi->hba_inquiry = 0; cpi->target_sprt = 0; cpi->hba_misc = 0; cpi->hba_eng_cnt = 0; cpi->max_target = 7; cpi->max_lun = 0; cpi->initiator_id = VP0_INITIATOR; cpi->bus_id = sim->bus_id; cpi->base_transfer_speed = 93; strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); strncpy(cpi->hba_vid, "Iomega", HBA_IDLEN); strncpy(cpi->dev_name, sim->sim_name, DEV_IDLEN); cpi->unit_number = sim->unit_number; cpi->transport = XPORT_PPB; cpi->transport_version = 0; cpi->ccb_h.status = CAM_REQ_CMP; xpt_done(ccb); break; } default: ccb->ccb_h.status = CAM_REQ_INVALID; xpt_done(ccb); break; } return; } static void vpo_poll(struct cam_sim *sim) { /* The ZIP is actually always polled throw vpo_action(). */ } static devclass_t vpo_devclass; static device_method_t vpo_methods[] = { /* device interface */ DEVMETHOD(device_identify, vpo_identify), DEVMETHOD(device_probe, vpo_probe), DEVMETHOD(device_attach, vpo_attach), { 0, 0 } }; static driver_t vpo_driver = { "vpo", vpo_methods, sizeof(struct vpo_data), }; DRIVER_MODULE(vpo, ppbus, vpo_driver, vpo_devclass, 0, 0); MODULE_DEPEND(vpo, ppbus, 1, 1, 1); MODULE_DEPEND(vpo, cam, 1, 1, 1);