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65fb49a994
front-end and the LSI64854 and NCR53C9x code in case one of these functions fails. Add detach functions to these parts and make esp(4) detachable. - Revert rev. 1.7 of esp_sbus.c, since rev. 1.34 of sbus.c the clockfreq IVAR defaults to the per-child values. - Merge ncr53c9x.c rev. 1.111 from NetBSD (partial): On reset, clear state flags and the msgout queue. In NetBSD code to notify the upper layer (i.e. CAM in FreeBSD) on reset was also added with this revision. This is believed to be not necessary in FreeBSD and was not merged. This makes ncr53c9x.c to be in sync with NetBSD up to rev. 1.114. - Conditionalize the LSI64854 support on sbus(4) only instead of sbus(4) and esp(4) as it's also required for the 'dma', 'espdma' and 'ledma' busses/devices as well as the 'SUNW,bpp' device (printer port) which all hang off of sbus(4). - Add a driver for the 'dma', 'espdma' and 'ledma' (pseudo-)busses/ devices. These busses and devices actually represent the LSI64854 DMA engines for the ESP SCSI and LANCE Ethernet controllers found on the SBus of Ultra 1 and SBus add-on cards. With 'espdma' and 'ledma' the 'esp' and 'le' devices hang off of the respective DMA bus instead of directly from the SBus. The 'dma' devices are either also used in this manner or on some add-on cards also as a companion device to an 'esp' device which also hangs off directly from the SBus. With the latter variant it's a bit tricky to glue the DMA engine to the core logic of the respective 'esp' device. With rev. 1.35 of sbus.c we are however guaranteed that such a 'dma' device is probed before the respective 'esp' device which simplifies things a lot. [1] - In the esp(4) SBus front-end read the part-unique ID code of Fast-SCSI capable chips the right way. This fixes erroneously detecting some chips as FAS366 when in fact they are not. Add explicit checks for the FAS100A, FAS216 and FAS236 variants instead treating all of these as ESP200. That way we can correctly set the respective Fast-SCSI config bits instead of driving them out of specs. This includes adding the FAS100A and FAS236 variants to the NCR53C9x core code. We probably still subsume some chip variants as ESP200 while in fact they are another variant which however shouldn't really matter as this will only happen when these chips are driven at 25MHz or less which implies not being able to run Fast-SCSI. [3] - Add a workaround to the NCR53C9x interrupt handler which ignores the stray interrupt generated by FAS100A when doing path inquiry during boot and which otherwiese would trigger a panic. - Add support for the 'esp' devices hanging off of a 'dma' or 'espdma' busses or which are companions of 'dma' devices to esp(4). In case of the variants that hang off of a DMA device this is a bit hackish as esp(4) then directly uses the softc of the respective parent to talk to the DMA engine. It might make sense to add an interface for this in order to implement this in a cleaner way however it's not yet clear how the requirements for the LANCE Ethernet controllers are and the hack works for now. [2] This effectively adds support for the onboard SCSI controller in Ultra 1 as well as most of the ESP-based SBus add-on cards to esp(4). With this the code for supporting the Performance Technologies SBS430 SBus SCSI add-on cards is also largely in place the remaining bits were however omitted as it's unclear from the NetBSD how to couple the DMA engine and the core logic together for these cards. Obtained from: OpenBSD [1] Obtained from: NetBSD [2] Clue from: BSD/OS [3] Reviewed by: scottl (earlier version) Tested with: FSBE/S add-on card (FAS236), SSHA add-on card (ESP100A), Ultra 1 (onboard FAS100A), Ultra 2 (onboard FAS366)
507 lines
14 KiB
C
507 lines
14 KiB
C
/* $OpenBSD: dma_sbus.c,v 1.12 2005/03/03 01:41:45 miod Exp $ */
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/* $NetBSD: dma_sbus.c,v 1.5 2000/07/09 20:57:42 pk Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Paul Kranenburg.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1994 Peter Galbavy. All rights reserved.
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* Copyright (c) 2005 Marius Strobl <marius@FreeBSD.org>. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/resource.h>
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#include <sys/rman.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/openfirm.h>
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#include <machine/bus.h>
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#include <machine/bus_common.h>
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#include <machine/resource.h>
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#include <sparc64/sbus/lsi64854reg.h>
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#include <sparc64/sbus/lsi64854var.h>
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#include <sparc64/sbus/ofw_sbus.h>
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#include <sparc64/sbus/sbusreg.h>
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#include <sparc64/sbus/sbusvar.h>
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struct dma_devinfo {
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char *ddi_compat; /* PROM compatible */
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char *ddi_model; /* PROM model */
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char *ddi_name; /* PROM name */
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phandle_t ddi_node; /* PROM node */
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char *ddi_type; /* PROM device_type */
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struct resource_list ddi_rl;
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};
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struct dma_softc {
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struct lsi64854_softc sc_lsi64854; /* base device */
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int sc_ign;
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int sc_slot;
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};
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static devclass_t dma_devclass;
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static device_probe_t dma_probe;
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static device_attach_t dma_attach;
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static bus_print_child_t dma_print_child;
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static bus_probe_nomatch_t dma_probe_nomatch;
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static bus_get_resource_list_t dma_get_resource_list;
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#if 0
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static bus_setup_intr_t dma_setup_intr;
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#endif
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static ofw_bus_get_compat_t dma_get_compat;
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static ofw_bus_get_model_t dma_get_model;
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static ofw_bus_get_name_t dma_get_name;
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static ofw_bus_get_node_t dma_get_node;
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static ofw_bus_get_type_t dma_get_type;
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static struct dma_devinfo *dma_setup_dinfo(device_t, phandle_t, char *);
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static void dma_destroy_dinfo(struct dma_devinfo *);
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static device_method_t dma_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, dma_probe),
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DEVMETHOD(device_attach, dma_attach),
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/* Bus interface */
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DEVMETHOD(bus_print_child, dma_print_child),
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DEVMETHOD(bus_probe_nomatch, dma_probe_nomatch),
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#if 0
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DEVMETHOD(bus_setup_intr, dma_setup_intr),
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#else
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DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
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#endif
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DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
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DEVMETHOD(bus_alloc_resource, bus_generic_rl_alloc_resource),
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DEVMETHOD(bus_release_resource, bus_generic_rl_release_resource),
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DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
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DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
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DEVMETHOD(bus_get_resource_list, dma_get_resource_list),
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DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
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/* ofw_bus interface */
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DEVMETHOD(ofw_bus_get_compat, dma_get_compat),
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DEVMETHOD(ofw_bus_get_model, dma_get_model),
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DEVMETHOD(ofw_bus_get_name, dma_get_name),
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DEVMETHOD(ofw_bus_get_node, dma_get_node),
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DEVMETHOD(ofw_bus_get_type, dma_get_type),
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{ 0, 0 }
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};
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static driver_t dma_driver = {
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"dma",
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dma_methods,
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sizeof(struct dma_softc),
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};
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DRIVER_MODULE(dma, sbus, dma_driver, dma_devclass, 0, 0);
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static int
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dma_probe(device_t dev)
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{
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const char *name;
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name = ofw_bus_get_name(dev);
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if (strcmp(name, "espdma") == 0 || strcmp(name, "dma") == 0 ||
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strcmp(name, "ledma") == 0) {
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device_set_desc_copy(dev, name);
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return (0);
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}
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return (ENXIO);
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}
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static int
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dma_attach(device_t dev)
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{
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struct dma_softc *dsc;
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struct lsi64854_softc *lsc;
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struct dma_devinfo *ddi;
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device_t cdev;
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const char *name;
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char *cabletype, *cname;
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uint32_t csr;
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phandle_t child, node;
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int error, burst, children;
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dsc = device_get_softc(dev);
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bzero(dsc, sizeof(struct dma_softc));
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lsc = &dsc->sc_lsi64854;
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name = ofw_bus_get_name(dev);
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node = ofw_bus_get_node(dev);
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dsc->sc_ign = sbus_get_ign(dev);
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dsc->sc_slot = sbus_get_slot(dev);
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lsc->sc_rid = 0;
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lsc->sc_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &lsc->sc_rid,
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RF_ACTIVE);
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if (lsc->sc_res == NULL) {
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device_printf(dev, "cannot allocate resources\n");
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return (ENXIO);
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}
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lsc->sc_regt = rman_get_bustag(lsc->sc_res);
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lsc->sc_regh = rman_get_bushandle(lsc->sc_res);
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if (strcmp(name, "espdma") == 0 || strcmp(name, "dma") == 0)
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lsc->sc_channel = L64854_CHANNEL_SCSI;
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else if (strcmp(name, "ledma") == 0) {
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/*
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* Check to see which cable type is currently active and
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* set the appropriate bit in the ledma csr so that it
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* gets used. If we didn't netboot, the PROM won't have
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* the "cable-selection" property; default to TP and then
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* the user can change it via a "media" option to ifconfig.
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*/
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csr = L64854_GCSR(lsc);
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if ((OF_getprop_alloc(node, "cable-selection", 1,
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(void **)&cabletype)) == -1) {
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/* assume TP if nothing there */
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csr |= E_TP_AUI;
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} else {
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if (strcmp(cabletype, "aui") == 0)
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csr &= ~E_TP_AUI;
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else
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csr |= E_TP_AUI;
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free(cabletype, M_OFWPROP);
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}
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L64854_SCSR(lsc, csr);
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DELAY(20000); /* manual says we need a 20ms delay */
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lsc->sc_channel = L64854_CHANNEL_ENET;
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} else {
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device_printf(dev, "unsupported DMA channel\n");
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error = ENXIO;
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goto fail_lres;
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}
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error = bus_dma_tag_create(
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NULL, /* parent */
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PAGE_SIZE, 0, /* alignment, boundary */
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BUS_SPACE_MAXADDR, /* lowaddr */
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BUS_SPACE_MAXADDR, /* highaddr */
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NULL, NULL, /* filter, filterarg */
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BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
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0, /* nsegments */
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BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
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0, /* flags */
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NULL, NULL, /* no locking */
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&lsc->sc_parent_dmat);
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if (error != 0) {
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device_printf(dev, "cannot allocate parent DMA tag\n");
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goto fail_lres;
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}
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burst = sbus_get_burstsz(dev);
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lsc->sc_burst = (burst & SBUS_BURST_32) ? 32 :
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(burst & SBUS_BURST_16) ? 16 : 0;
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lsc->sc_dev = dev;
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error = lsi64854_attach(lsc);
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if (error != 0) {
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device_printf(dev, "lsi64854_attach failed\n");
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goto fail_lpdma;
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}
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/* Attach children. */
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children = 0;
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for (child = OF_child(node); child != 0; child = OF_peer(child)) {
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if ((OF_getprop_alloc(child, "name", 1, (void **)&cname)) == -1)
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continue;
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if ((ddi = dma_setup_dinfo(dev, child, cname)) == NULL) {
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device_printf(dev, "<%s>: incomplete\n", cname);
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free(cname, M_OFWPROP);
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continue;
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}
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if (children != 0) {
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device_printf(dev, "<%s>: only one child per DMA "
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"channel supported\n", cname);
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dma_destroy_dinfo(ddi);
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free(cname, M_OFWPROP);
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continue;
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}
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if ((cdev = device_add_child(dev, NULL, -1)) == NULL) {
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device_printf(dev, "<%s>: device_add_child failed\n",
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cname);
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dma_destroy_dinfo(ddi);
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free(cname, M_OFWPROP);
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continue;
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}
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device_set_ivars(cdev, ddi);
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children++;
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}
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error = bus_generic_attach(dev);
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if (error != 0) {
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device_printf(dev, "bus_generic_attach failed\n");
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goto fail_lsi;
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}
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return (0);
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fail_lsi:
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lsi64854_detach(lsc);
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fail_lpdma:
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bus_dma_tag_destroy(lsc->sc_parent_dmat);
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fail_lres:
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bus_release_resource(dev, SYS_RES_MEMORY, lsc->sc_rid, lsc->sc_res);
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return (error);
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}
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static struct dma_devinfo *
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dma_setup_dinfo(device_t dev, phandle_t node, char *name)
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{
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struct dma_softc *dsc;
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struct dma_devinfo *ddi;
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struct sbus_regs *reg;
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uint32_t base, iv, *intr;
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int i, nreg, nintr, slot, rslot;
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dsc = device_get_softc(dev);
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ddi = malloc(sizeof(*ddi), M_DEVBUF, M_WAITOK | M_ZERO);
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if (ddi == NULL)
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return (NULL);
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resource_list_init(&ddi->ddi_rl);
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ddi->ddi_name = name;
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ddi->ddi_node = node;
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OF_getprop_alloc(node, "compatible", 1, (void **)&ddi->ddi_compat);
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OF_getprop_alloc(node, "device_type", 1, (void **)&ddi->ddi_type);
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OF_getprop_alloc(node, "model", 1, (void **)&ddi->ddi_model);
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slot = -1;
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nreg = OF_getprop_alloc(node, "reg", sizeof(*reg), (void **)®);
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if (nreg == -1) {
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dma_destroy_dinfo(ddi);
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return (NULL);
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}
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for (i = 0; i < nreg; i++) {
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base = reg[i].sbr_offset;
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if (SBUS_ABS(base)) {
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rslot = SBUS_ABS_TO_SLOT(base);
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base = SBUS_ABS_TO_OFFSET(base);
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} else
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rslot = reg[i].sbr_slot;
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if (slot != -1 && slot != rslot) {
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device_printf(dev, "<%s>: multiple slots\n", name);
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free(reg, M_OFWPROP);
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dma_destroy_dinfo(ddi);
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return (NULL);
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}
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slot = rslot;
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resource_list_add(&ddi->ddi_rl, SYS_RES_MEMORY, i, base,
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base + reg[i].sbr_size, reg[i].sbr_size);
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}
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free(reg, M_OFWPROP);
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if (slot != dsc->sc_slot) {
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device_printf(dev, "<%s>: parent and child slot do not match\n",
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name);
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dma_destroy_dinfo(ddi);
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return (NULL);
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}
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/*
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* The `interrupts' property contains the SBus interrupt level.
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*/
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nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intr),
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(void **)&intr);
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if (nintr != -1) {
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for (i = 0; i < nintr; i++) {
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iv = intr[i];
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/*
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* SBus card devices need the slot number encoded into
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* the vector as this is generally not done.
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*/
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if ((iv & INTMAP_OBIO_MASK) == 0)
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iv |= slot << 3;
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/* Set the IGN as appropriate. */
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iv |= dsc->sc_ign << INTMAP_IGN_SHIFT;
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resource_list_add(&ddi->ddi_rl, SYS_RES_IRQ, i,
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iv, iv, 1);
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}
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free(intr, M_OFWPROP);
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}
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return (ddi);
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}
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static void
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dma_destroy_dinfo(struct dma_devinfo *dinfo)
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{
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resource_list_free(&dinfo->ddi_rl);
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if (dinfo->ddi_compat != NULL)
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free(dinfo->ddi_compat, M_OFWPROP);
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if (dinfo->ddi_model != NULL)
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free(dinfo->ddi_model, M_OFWPROP);
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if (dinfo->ddi_type != NULL)
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free(dinfo->ddi_type, M_OFWPROP);
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free(dinfo, M_DEVBUF);
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}
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static int
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dma_print_child(device_t dev, device_t child)
|
|
{
|
|
struct dma_devinfo *ddi;
|
|
struct resource_list *rl;
|
|
int rv;
|
|
|
|
ddi = device_get_ivars(child);
|
|
rl = &ddi->ddi_rl;
|
|
rv = bus_print_child_header(dev, child);
|
|
rv += resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#lx");
|
|
rv += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%ld");
|
|
rv += bus_print_child_footer(dev, child);
|
|
return (rv);
|
|
}
|
|
|
|
static void
|
|
dma_probe_nomatch(device_t dev, device_t child)
|
|
{
|
|
struct dma_devinfo *ddi;
|
|
struct resource_list *rl;
|
|
|
|
ddi = device_get_ivars(child);
|
|
rl = &ddi->ddi_rl;
|
|
device_printf(dev, "<%s>", ddi->ddi_name);
|
|
resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#lx");
|
|
resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%ld");
|
|
printf(" type %s (no driver attached)\n",
|
|
ddi->ddi_type != NULL ? ddi->ddi_type : "unknown");
|
|
}
|
|
|
|
static struct resource_list *
|
|
dma_get_resource_list(device_t dev, device_t child)
|
|
{
|
|
struct dma_devinfo *ddi;
|
|
|
|
ddi = device_get_ivars(child);
|
|
return (&ddi->ddi_rl);
|
|
}
|
|
|
|
#if 0
|
|
static int
|
|
dma_setup_intr(device_t dev, device_t child, struct resource *ires, int flags,
|
|
driver_intr_t *intr, void *arg, void **cookiep)
|
|
{
|
|
struct lsi64854_softc *sc;
|
|
|
|
sc = (struct lsi64854_softc *)device_get_softc(dev);
|
|
/* XXX - for now only le; do ESP later */
|
|
if (sc->sc_channel == L64854_CHANNEL_ENET) {
|
|
sc->sc_intrchain = intr;
|
|
sc->sc_intrchainarg = arg;
|
|
intr = (driver_intr_t *)lsi64854_enet_intr;
|
|
arg = sc;
|
|
}
|
|
|
|
return (BUS_SETUP_INTR(device_get_parent(dev), child, ires, flags,
|
|
intr, arg, cookiep));
|
|
}
|
|
#endif
|
|
|
|
static const char *
|
|
dma_get_compat(device_t bus, device_t dev)
|
|
{
|
|
struct dma_devinfo *dinfo;
|
|
|
|
dinfo = device_get_ivars(dev);
|
|
return (dinfo->ddi_compat);
|
|
}
|
|
|
|
static const char *
|
|
dma_get_model(device_t bus, device_t dev)
|
|
{
|
|
struct dma_devinfo *dinfo;
|
|
|
|
dinfo = device_get_ivars(dev);
|
|
return (dinfo->ddi_model);
|
|
}
|
|
|
|
static const char *
|
|
dma_get_name(device_t bus, device_t dev)
|
|
{
|
|
struct dma_devinfo *dinfo;
|
|
|
|
dinfo = device_get_ivars(dev);
|
|
return (dinfo->ddi_name);
|
|
}
|
|
|
|
static phandle_t
|
|
dma_get_node(device_t bus, device_t dev)
|
|
{
|
|
struct dma_devinfo *dinfo;
|
|
|
|
dinfo = device_get_ivars(dev);
|
|
return (dinfo->ddi_node);
|
|
}
|
|
|
|
static const char *
|
|
dma_get_type(device_t bus, device_t dev)
|
|
{
|
|
struct dma_devinfo *dinfo;
|
|
|
|
dinfo = device_get_ivars(dev);
|
|
return (dinfo->ddi_type);
|
|
}
|