143 lines
4.5 KiB
C
143 lines
4.5 KiB
C
/* $NetBSD: if_mtd_pci.c,v 1.16 2011/07/26 20:51:24 dyoung Exp $ */
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/*-
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* Copyright (c) 2002 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 Peter Bex <Peter.Bex@student.kun.nl>.
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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 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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* PCI interface for MTD803 cards
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* Written by Peter Bex (peter.bex@student.kun.nl)
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*/
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/* TODO: Check why in IO space, the MII won't work. Memory mapped works */
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_mtd_pci.c,v 1.16 2011/07/26 20:51:24 dyoung Exp $");
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/systm.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_ether.h>
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#include <net/if_media.h>
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#include <sys/bus.h>
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#include <dev/mii/miivar.h>
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#include <dev/ic/mtd803reg.h>
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#include <dev/ic/mtd803var.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#define PCI_IO_MAP_REG PCI_BAR(0)
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#define PCI_MEM_MAP_REG PCI_BAR(1)
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struct mtd_pci_device_id {
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pci_vendor_id_t vendor; /* PCI vendor ID */
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pci_product_id_t product; /* PCI product ID */
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};
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static struct mtd_pci_device_id mtd_ids[] = {
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{ PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD803 },
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{ 0, 0 }
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};
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static int mtd_pci_match(device_t, cfdata_t, void *);
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static void mtd_pci_attach(device_t, device_t, void *);
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CFATTACH_DECL(mtd_pci, sizeof(struct mtd_softc), mtd_pci_match, mtd_pci_attach,
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NULL, NULL);
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static int
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mtd_pci_match(device_t parent, cfdata_t match, void *aux)
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{
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struct pci_attach_args *pa = aux;
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struct mtd_pci_device_id *id;
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for (id = mtd_ids; id->vendor != 0; ++id) {
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if (PCI_VENDOR(pa->pa_id) == id->vendor &&
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PCI_PRODUCT(pa->pa_id) == id->product)
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return (1);
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}
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return (0);
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}
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static void
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mtd_pci_attach(device_t parent, device_t self, void *aux)
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{
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struct pci_attach_args * const pa = aux;
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struct mtd_softc * const sc = device_private(self);
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pci_intr_handle_t ih;
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const char *intrstring = NULL;
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bus_space_tag_t iot, memt;
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bus_space_handle_t ioh, memh;
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int io_valid, mem_valid;
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char devinfo[256];
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pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
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printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class));
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io_valid = (pci_mapreg_map(pa, PCI_IO_MAP_REG, PCI_MAPREG_TYPE_IO,
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0, &iot, &ioh, NULL, NULL) == 0);
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mem_valid = (pci_mapreg_map(pa, PCI_MEM_MAP_REG, PCI_MAPREG_TYPE_MEM
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| PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh,
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NULL, NULL) == 0);
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if (mem_valid) {
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sc->bus_tag = memt;
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sc->bus_handle = memh;
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} else if (io_valid) {
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sc->bus_tag = iot;
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sc->bus_handle = ioh;
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} else {
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aprint_error_dev(&sc->dev, "could not map memory or i/o space\n");
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return;
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}
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sc->dma_tag = pa->pa_dmat;
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/* Do generic attach. Seems this must be done before setting IRQ */
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mtd_config(sc);
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if (pci_intr_map(pa, &ih)) {
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aprint_error_dev(&sc->dev, "could not map interrupt\n");
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return;
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}
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intrstring = pci_intr_string(pa->pa_pc, ih);
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if (pci_intr_establish(pa->pa_pc, ih, IPL_NET, mtd_irq_h, sc) == NULL) {
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aprint_error_dev(&sc->dev, "could not establish interrupt");
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if (intrstring != NULL)
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aprint_error(" at %s", intrstring);
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aprint_error("\n");
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return;
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} else {
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aprint_normal_dev(&sc->dev, "using %s for interrupt\n",
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intrstring ? intrstring : "unknown interrupt");
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}
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}
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