Exemplo n.º 1
0
/*
 * ppb_poll_bus()
 *
 * Polls the bus
 *
 * max is a delay in 10-milliseconds
 */
int
ppb_poll_bus(device_t bus, int max,
	     char mask, char status, int how)
{
	struct ppb_data *ppb = DEVTOSOFTC(bus);
	int i, j, error;
	char r;

	ppb_assert_locked(bus);

	/* try at least up to 10ms */
	for (j = 0; j < ((how & PPB_POLL) ? max : 1); j++) {
		for (i = 0; i < 10000; i++) {
			r = ppb_rstr(bus);
			DELAY(1);
			if ((r & mask) == status)
				return (0);
		}
	}

	if (!(how & PPB_POLL)) {
	   for (i = 0; max == PPB_FOREVER || i < max-1; i++) {
		if ((ppb_rstr(bus) & mask) == status)
			return (0);

		/* wait 10 ms */
		error = mtx_sleep((caddr_t)bus, ppb->ppc_lock, PPBPRI |
		    (how == PPB_NOINTR ? 0 : PCATCH), "ppbpoll", hz/100);
		if (error != EWOULDBLOCK)
			return (error);
	   }
	}

	return (EWOULDBLOCK);
}
Exemplo n.º 2
0
/*
 * ppb_ecp_sync()
 *
 * Wait for the ECP FIFO to be empty
 */
int
ppb_ecp_sync(device_t bus)
{

	ppb_assert_locked(bus);
	return (PPBUS_ECP_SYNC(device_get_parent(bus)));
}
Exemplo n.º 3
0
/*
 * ppb_reset_epp_timeout()
 *
 * Reset the EPP timeout bit in the status register
 */
int
ppb_reset_epp_timeout(device_t bus)
{

	ppb_assert_locked(bus);
	return(PPBUS_RESET_EPP(device_get_parent(bus)));
}
Exemplo n.º 4
0
/*
 * ppb_write()
 *
 * Write charaters to the port
 */
int
ppb_write(device_t bus, char *buf, int len, int how)
{

	ppb_assert_locked(bus);
	return (PPBUS_WRITE(device_get_parent(bus), buf, len, how));
}
Exemplo n.º 5
0
/*
 * ppb_get_mode()
 *
 */
int
ppb_get_mode(device_t bus)
{
	struct ppb_data *ppb = DEVTOSOFTC(bus);

	/* XXX yet device mode = ppbus mode = chipset mode */
	ppb_assert_locked(bus);
	return (ppb->mode);
}
Exemplo n.º 6
0
/* Reset bus by setting SDA first and then SCL. */
static void
lpbb_reset_bus(device_t dev)
{
	device_t ppbus = device_get_parent(dev);

	ppb_assert_locked(ppbus);
	ppb_wdtr(ppbus, (u_char)~SDA_out);
	ppb_wctr(ppbus, (u_char)(ppb_rctr(ppbus) | SCL_out));
}
Exemplo n.º 7
0
/*
 * ppb_get_epp_protocol()
 *
 * Return the chipset EPP protocol
 */
int
ppb_get_epp_protocol(device_t bus)
{
	uintptr_t protocol;

	ppb_assert_locked(bus);
	BUS_READ_IVAR(device_get_parent(bus), bus, PPC_IVAR_EPP_PROTO, &protocol);

	return (protocol);
}
Exemplo n.º 8
0
/*
 * ppb_set_mode()
 *
 * Set the operating mode of the chipset, return the previous mode
 */
int
ppb_set_mode(device_t bus, int mode)
{
	struct ppb_data *ppb = DEVTOSOFTC(bus);
	int old_mode = ppb_get_mode(bus);

	ppb_assert_locked(bus);
	if (PPBUS_SETMODE(device_get_parent(bus), mode))
		return (-1);

	/* XXX yet device mode = ppbus mode = chipset mode */
	ppb->mode = (mode & PPB_MASK);

	return (old_mode);
}
Exemplo n.º 9
0
/*
 * ppb_get_status()
 *
 * Read the status register and update the status info
 */
int
ppb_get_status(device_t bus, struct ppb_status *status)
{
	register char r;

	ppb_assert_locked(bus);

	r = status->status = ppb_rstr(bus);

	status->timeout	= r & TIMEOUT;
	status->error	= !(r & nFAULT);
	status->select	= r & SELECT;
	status->paper_end = r & PERROR;
	status->ack	= !(r & nACK);
	status->busy	= !(r & nBUSY);

	return (0);
}
Exemplo n.º 10
0
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;
}