197 lines
5.8 KiB
C
197 lines
5.8 KiB
C
/*
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* Copyright (c) 1997 Ted Faber
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* 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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*
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* 1. Redistributions of source code must retain the above copyright
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* notice immediately at the beginning of the file, without modification,
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* 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. Absolutely no warranty of function or purpose is made by the author
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* Ted Faber.
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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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* $Id: pcic_p.c,v 1.6 1998/08/18 00:32:48 bde Exp $
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*/
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#include "pci.h"
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#if NPCI > 0
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <pci/pcireg.h>
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#include <pci/pcivar.h>
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#include <pci/pcic_p.h>
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#include <pccard/i82365.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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static u_long pcic_pci_count = 0;
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static const char *pcic_pci_probe(pcici_t, pcidi_t);
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static void pcic_pci_attach(pcici_t, int);
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static void pd6832_legacy_init(pcici_t tag, int unit);
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static struct pci_device pcic_pci_driver = {
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"pcic",
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pcic_pci_probe,
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pcic_pci_attach,
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&pcic_pci_count,
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NULL
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};
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DATA_SET(pcidevice_set, pcic_pci_driver);
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/*
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* Return the ID string for the controller if the vendor/product id
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* matches, NULL otherwise.
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*/
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static const char *
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pcic_pci_probe(pcici_t tag, pcidi_t type)
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{
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switch (type) {
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case PCI_DEVICE_ID_PCIC_CLPD6729:
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return ("Cirrus Logic PD6729/6730 PC-Card Controller");
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case PCI_DEVICE_ID_PCIC_CLPD6832:
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return ("Cirrus Logic PD6832 CardBus Adapter");
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case PCI_DEVICE_ID_PCIC_TI1130:
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return ("TI 1130 PCMCIA/CardBus Bridge");
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case PCI_DEVICE_ID_PCIC_TI1131:
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return ("TI 1131 PCI to PCMCIA/CardBus bridge");
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default:
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break;
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}
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return (NULL);
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}
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/*
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* General PCI based card dispatch routine. Right now
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* it only understands the CL-PD6832.
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*/
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static void
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pcic_pci_attach(pcici_t config_id, int unit)
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{
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u_long pcic_type; /* The vendor id of the PCI pcic */
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pcic_type = pci_conf_read(config_id, PCI_ID_REG);
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switch (pcic_type) {
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case PCI_DEVICE_ID_PCIC_CLPD6832:
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pd6832_legacy_init(config_id, unit);
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break;
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}
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if (bootverbose) {
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int i, j;
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u_char *p;
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u_long *pl;
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printf("PCI Config space:\n");
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for (j = 0; j < 0x98; j += 16) {
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printf("%02x: ", j);
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for (i = 0; i < 16; i += 4)
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printf(" %08lx", pci_conf_read(config_id, i+j));
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printf("\n");
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}
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p = (u_char *)pmap_mapdev(pci_conf_read(config_id, 0x10),
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0x1000);
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pl = (u_long *)p;
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printf("Cardbus Socket registers:\n");
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printf("00: ");
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for (i = 0; i < 4; i += 1)
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printf(" %08lx:", pl[i]);
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printf("\n10: ");
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for (i = 4; i < 8; i += 1)
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printf(" %08lx:", pl[i]);
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printf("\nExCa registers:\n");
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for (i = 0; i < 0x40; i += 16)
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printf("%02x: %16D\n", i, p + 0x800 + i, " ");
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}
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}
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/*
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* Set up the CL-PD6832 to look like a ISA based PCMCIA chip (a
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* PD672X). This routine is called once per PCMCIA socket.
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*/
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static void
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pd6832_legacy_init(pcici_t tag, int unit)
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{
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u_long bcr; /* to set interrupts */
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u_short io_port; /* the io_port to map this slot on */
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static int num6832 = 0; /* The number of 6832s initialized */
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/*
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* Some BIOS leave the legacy address uninitialized. This
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* insures that the PD6832 puts itself where the driver will
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* look. We assume that multiple 6832's should be laid out
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* sequentially. We only initialize the first socket's legacy port,
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* the other is a dummy.
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*/
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io_port = PCIC_INDEX_0 + num6832 * CLPD6832_NUM_REGS;
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if (unit == 0)
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pci_conf_write(tag, CLPD6832_LEGACY_16BIT_IOADDR,
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io_port & ~PCI_MAP_IO);
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/*
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* I think this should be a call to pci_map_port, but that
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* routine won't map regiaters above 0x28, and the register we
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* need to map is 0x44.
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*/
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io_port = pci_conf_read(tag, CLPD6832_LEGACY_16BIT_IOADDR)
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& ~PCI_MAP_IO;
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/*
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* Configure the first I/O window to contain CLPD6832_NUM_REGS
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* words and deactivate the second by setting the limit lower
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* than the base.
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*/
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pci_conf_write(tag, CLPD6832_IO_BASE0, io_port | 1);
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pci_conf_write(tag, CLPD6832_IO_LIMIT0,
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(io_port + CLPD6832_NUM_REGS) | 1);
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pci_conf_write(tag, CLPD6832_IO_BASE1, (io_port + 0x20) | 1);
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pci_conf_write(tag, CLPD6832_IO_LIMIT1, io_port | 1 );
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/*
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* Set default operating mode (I/O port space) and allocate
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* this socket to the current unit.
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*/
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pci_conf_write(tag, PCI_COMMAND_STATUS_REG, CLPD6832_COMMAND_DEFAULTS );
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pci_conf_write(tag, CLPD6832_SOCKET, unit);
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/*
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* Set up the card inserted/card removed interrupts to come
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* through the isa IRQ.
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*/
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bcr = pci_conf_read(tag, CLPD6832_BRIDGE_CONTROL);
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bcr |= (CLPD6832_BCR_ISA_IRQ|CLPD6832_BCR_MGMT_IRQ_ENA);
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pci_conf_write(tag, CLPD6832_BRIDGE_CONTROL, bcr);
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/* After initializing 2 sockets, the chip is fully configured */
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if (unit == 1)
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num6832++;
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if (bootverbose)
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printf("CardBus: Legacy PC-card 16bit I/O address [0x%x]\n",
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io_port);
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}
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#endif /* NPCI > 0 */
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