63fa9f4c0d
Briefly, the significant changes include: * Way better resource management in pccbb, pccard and cardbus. * pccard hot-removal now appears to work. * support pre-fetchable memory in cardbus. * update cardbus to support new pci bus interface functions. * Fix CIS reading to no longer use rman_get_virtual(). What's not there, but in the works: * pccard needs to do interrupt properly and not read the ISR on single function cards. * real resource management for pccard * a complete implementation of CIS parsing * need to look into how to correctly use mutex in pccbb
1026 lines
28 KiB
C
1026 lines
28 KiB
C
/*
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* Copyright (c) 2000,2001 Jonathan Chen.
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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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* 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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* without modification, immediately at the beginning of the file.
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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
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* CIS Handling for the Cardbus Bus
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*/
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#define CARDBUS_DEBUG
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <sys/pciio.h>
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#include <dev/cardbus/cardbusreg.h>
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#include <dev/cardbus/cardbusvar.h>
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#include <dev/cardbus/cardbus_cis.h>
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#include "card_if.h"
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#if defined CARDBUS_DEBUG
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#define DPRINTF(a) printf a
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#define DEVPRINTF(x) device_printf x
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#else
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#define DPRINTF(a)
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#define DEVPRINTF(x)
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#endif
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#if !defined(lint)
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static const char rcsid[] =
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"$FreeBSD$";
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#endif
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#define DECODE_PARAMS \
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(device_t cbdev, device_t child, int id, int len, \
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u_int8_t *tupledata, u_int32_t start, u_int32_t *off, \
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struct tuple_callbacks *info)
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struct tuple_callbacks {
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int id;
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char *name;
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int (*func) DECODE_PARAMS;
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};
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#define DECODE_PROTOTYPE(NAME) static int decode_tuple_ ## NAME DECODE_PARAMS
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DECODE_PROTOTYPE(generic);
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DECODE_PROTOTYPE(nothing);
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DECODE_PROTOTYPE(copy);
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DECODE_PROTOTYPE(linktarget);
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DECODE_PROTOTYPE(vers_1);
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DECODE_PROTOTYPE(funcid);
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DECODE_PROTOTYPE(manfid);
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DECODE_PROTOTYPE(funce);
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DECODE_PROTOTYPE(bar);
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DECODE_PROTOTYPE(unhandled);
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DECODE_PROTOTYPE(end);
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static int cardbus_read_tuple_conf(device_t cbdev, device_t child,
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u_int32_t start, u_int32_t *off, int *tupleid, int *len,
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u_int8_t *tupledata);
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static int cardbus_read_tuple_mem(device_t cbdev, struct resource *res,
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u_int32_t start, u_int32_t *off, int *tupleid, int *len,
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u_int8_t *tupledata);
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static int cardbus_read_tuple(device_t cbdev, device_t child,
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struct resource *res, u_int32_t start, u_int32_t *off,
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int *tupleid, int *len, u_int8_t *tupledata);
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static void cardbus_read_tuple_finish(device_t cbdev, device_t child,
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int rid, struct resource *res);
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static struct resource *cardbus_read_tuple_init(device_t cbdev, device_t child,
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u_int32_t *start, int *rid);
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static int decode_tuple(device_t cbdev, device_t child, int tupleid,
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int len, u_int8_t *tupledata, u_int32_t start,
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u_int32_t *off, struct tuple_callbacks *callbacks);
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static int cardbus_parse_cis(device_t cbdev, device_t child,
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struct tuple_callbacks *callbacks);
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static int barsort(const void *a, const void *b);
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static int cardbus_alloc_resources(device_t cbdev, device_t child);
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static void cardbus_add_map(device_t cbdev, device_t child, int reg);
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static void cardbus_pickup_maps(device_t cbdev, device_t child);
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#define MAKETUPLE(NAME,FUNC) { CISTPL_ ## NAME, #NAME, decode_tuple_ ## FUNC }
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static char *funcnames[] = {
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"Multi-Functioned",
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"Memory",
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"Serial Port",
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"Parallel Port",
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"Fixed Disk",
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"Video Adaptor",
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"Network Adaptor",
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"AIMS",
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"SCSI",
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"Security"
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};
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struct cardbus_quirk {
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u_int32_t devid; /* Vendor/device of the card */
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int type;
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#define CARDBUS_QUIRK_MAP_REG 1 /* PCI map register in weird place */
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int arg1;
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int arg2;
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};
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struct cardbus_quirk cardbus_quirks[] = {
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{ 0 }
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};
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static struct cis_tupleinfo *cisread_buf;
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static int ncisread_buf;
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/*
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* Handler functions for various CIS tuples
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*/
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DECODE_PROTOTYPE(generic)
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{
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#ifdef CARDBUS_DEBUG
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int i;
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if (info)
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printf("TUPLE: %s [%d]:", info->name, len);
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else
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printf("TUPLE: Unknown(0x%02x) [%d]:", id, len);
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for (i = 0; i < len; i++) {
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if (i % 0x10 == 0 && len > 0x10)
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printf("\n 0x%02x:", i);
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printf(" %02x", tupledata[i]);
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}
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printf("\n");
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#endif
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return 0;
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}
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DECODE_PROTOTYPE(nothing)
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{
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return 0;
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}
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DECODE_PROTOTYPE(copy)
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{
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struct cis_tupleinfo *tmpbuf;
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tmpbuf = malloc(sizeof(struct cis_tupleinfo) * (ncisread_buf+1),
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M_DEVBUF, M_WAITOK);
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if (ncisread_buf > 0) {
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memcpy(tmpbuf, cisread_buf,
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sizeof(struct cis_tupleinfo) * ncisread_buf);
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free(cisread_buf, M_DEVBUF);
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}
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cisread_buf = tmpbuf;
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cisread_buf[ncisread_buf].id = id;
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cisread_buf[ncisread_buf].len = len;
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cisread_buf[ncisread_buf].data = malloc(len, M_DEVBUF, M_WAITOK);
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memcpy(cisread_buf[ncisread_buf].data, tupledata, len);
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ncisread_buf++;
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return 0;
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}
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DECODE_PROTOTYPE(linktarget)
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{
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#ifdef CARDBUS_DEBUG
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int i;
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printf("TUPLE: %s [%d]:", info->name, len);
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for (i = 0; i < len; i++) {
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if (i % 0x10 == 0 && len > 0x10)
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printf("\n 0x%02x:", i);
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printf(" %02x", tupledata[i]);
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}
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printf("\n");
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#endif
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if (len != 3 || tupledata[0] != 'C' || tupledata[1] != 'I' ||
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tupledata[2] != 'S') {
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printf("Invalid data for CIS Link Target!\n");
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decode_tuple_generic(cbdev, child, id, len, tupledata,
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start, off, info);
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return EINVAL;
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}
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return 0;
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}
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DECODE_PROTOTYPE(vers_1)
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{
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int i;
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printf("Product version: %d.%d\n", tupledata[0], tupledata[1]);
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printf("Product name: ");
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for (i = 2; i < len; i++) {
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if (tupledata[i] == '\0')
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printf(" | ");
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else if (tupledata[i] == 0xff)
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break;
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else
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printf("%c", tupledata[i]);
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}
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printf("\n");
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return 0;
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}
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DECODE_PROTOTYPE(funcid)
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{
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int i;
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int numnames = sizeof(funcnames) / sizeof(funcnames[0]);
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printf("Functions: ");
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for (i = 0; i < len; i++) {
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if (tupledata[i] < numnames)
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printf("%s", funcnames[tupledata[i]]);
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else
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printf("Unknown(%d)", tupledata[i]);
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if (i < len-1)
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printf(", ");
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}
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printf("\n");
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return 0;
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}
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DECODE_PROTOTYPE(manfid)
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{
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int i;
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printf("Manufacturer ID: ");
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for (i = 0; i < len; i++)
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printf("%02x", tupledata[i]);
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printf("\n");
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return 0;
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}
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DECODE_PROTOTYPE(funce)
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{
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int i;
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printf("Function Extension: ");
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for (i = 0; i < len; i++)
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printf("%02x", tupledata[i]);
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printf("\n");
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return 0;
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}
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DECODE_PROTOTYPE(bar)
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{
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if (len != 6) {
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printf("*** ERROR *** BAR length not 6 (%d)\n", len);
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return EINVAL;
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} else {
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struct cardbus_devinfo *dinfo = device_get_ivars(child);
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int type;
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int reg;
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u_int32_t bar;
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reg = *(u_int16_t*)tupledata;
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len = *(u_int32_t*)(tupledata + 2);
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if (reg & TPL_BAR_REG_AS) {
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type = SYS_RES_IOPORT;
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} else {
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type = SYS_RES_MEMORY;
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}
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bar = (reg & TPL_BAR_REG_ASI_MASK) - 1;
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if (bar < 0 || bar > 5 ||
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(type == SYS_RES_IOPORT && bar == 5)) {
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device_printf(cbdev, "Invalid BAR number: %02x(%02x)\n",
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reg, bar);
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return 0;
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}
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bar = CARDBUS_BASE0_REG + bar * 4;
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if (type == SYS_RES_MEMORY) {
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if (bar & TPL_BAR_REG_PREFETCHABLE)
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dinfo->mprefetchable |= BARBIT(bar);
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if (bar & TPL_BAR_REG_BELOW1MB)
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dinfo->mbelow1mb |= BARBIT(bar);
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} else if (type == SYS_RES_IOPORT) {
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if (bar & TPL_BAR_REG_BELOW1MB)
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dinfo->ibelow1mb |= BARBIT(bar);
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}
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DEVPRINTF((cbdev, "Opening BAR: type=%s, bar=%02x, "
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"len=%04x%s%s\n",
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(type==SYS_RES_MEMORY)?"MEM":"IO", bar, len,
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(type==SYS_RES_MEMORY&&dinfo->mprefetchable&BARBIT(bar))?
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" (Prefetchable)":"",
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type==SYS_RES_MEMORY?
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((dinfo->mbelow1mb&BARBIT(bar))?" (Below 1Mb)":"")
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:(dinfo->ibelow1mb&BARBIT(bar))?" (Below 1Mb)":""
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));
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resource_list_add(&dinfo->resources, type, bar, 0UL, ~0UL, len);
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}
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return 0;
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}
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DECODE_PROTOTYPE(unhandled)
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{
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printf("TUPLE: %s [%d] is unhandled! Bailing...", info->name, len);
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return -1;
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}
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DECODE_PROTOTYPE(end)
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{
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printf("CIS reading done\n");
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return 0;
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}
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/*
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* Functions to read the a tuple from the card
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*/
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static int
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cardbus_read_tuple_conf(device_t cbdev, device_t child, u_int32_t start,
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u_int32_t *off, int *tupleid, int *len, u_int8_t *tupledata)
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{
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int i, j;
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u_int32_t e;
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u_int32_t loc;
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loc = start + *off;
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e = pci_read_config(child, loc - loc % 4, 4);
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for (j = loc % 4; j > 0; j--)
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e >>= 8;
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*len = 0;
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for (i = loc, j = -2; j < *len; j++, i++) {
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if (i % 4 == 0)
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e = pci_read_config(child, i, 4);
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if (j == -2)
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*tupleid = 0xff & e;
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else if (j == -1)
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*len = 0xff & e;
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else
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tupledata[j] = 0xff & e;
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e >>= 8;
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}
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*off += *len + 2;
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return 0;
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}
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static int
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cardbus_read_tuple_mem(device_t cbdev, struct resource *res, u_int32_t start,
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u_int32_t *off, int *tupleid, int *len, u_int8_t *tupledata)
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{
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bus_space_tag_t bt;
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bus_space_handle_t bh;
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int ret;
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bt = rman_get_bustag(res);
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bh = rman_get_bushandle(res);
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*tupleid = bus_space_read_1(bt, bh, start + *off);
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*len = bus_space_read_1(bt, bh, start + *off + 1);
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bus_space_read_region_1(bt, bh, *off + start + 2, tupledata, *len);
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ret = 0;
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*off += *len + 2;
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return ret;
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}
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static int
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cardbus_read_tuple(device_t cbdev, device_t child, struct resource *res,
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u_int32_t start, u_int32_t *off, int *tupleid, int *len,
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u_int8_t *tupledata)
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{
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if (res == (struct resource*)~0UL) {
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return cardbus_read_tuple_conf(cbdev, child, start, off,
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tupleid, len, tupledata);
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} else {
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return cardbus_read_tuple_mem(cbdev, res, start, off,
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tupleid, len, tupledata);
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}
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}
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static void
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cardbus_read_tuple_finish(device_t cbdev, device_t child, int rid,
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struct resource *res)
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{
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if (res != (struct resource*)~0UL) {
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bus_release_resource(cbdev, SYS_RES_MEMORY, rid, res);
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pci_write_config(child, rid, 0, 4);
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PCI_DISABLE_IO(cbdev, child, SYS_RES_MEMORY);
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}
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}
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static struct resource *
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cardbus_read_tuple_init(device_t cbdev, device_t child, u_int32_t *start,
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int *rid)
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{
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u_int32_t testval;
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u_int32_t size;
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struct resource *res;
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switch (CARDBUS_CIS_SPACE(*start)) {
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case CARDBUS_CIS_ASI_TUPLE:
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/* CIS in tuple space need no initialization */
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return (struct resource*)~0UL;
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case CARDBUS_CIS_ASI_BAR0:
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case CARDBUS_CIS_ASI_BAR1:
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case CARDBUS_CIS_ASI_BAR2:
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case CARDBUS_CIS_ASI_BAR3:
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case CARDBUS_CIS_ASI_BAR4:
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case CARDBUS_CIS_ASI_BAR5:
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*rid = CARDBUS_BASE0_REG + (CARDBUS_CIS_SPACE(*start) - 1) * 4;
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pci_write_config(child, *rid, ~0UL, 4);
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break;
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case CARDBUS_CIS_ASI_ROM:
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*rid = CARDBUS_ROM_REG;
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pci_write_config(child, *rid, CARDBUS_ROM_ADDRMASK, 4);
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break;
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default:
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device_printf(cbdev, "Unable to read CIS: Unknown space: %d\n",
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CARDBUS_CIS_SPACE(*start));
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return NULL;
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}
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/* figure out how much space we need */
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testval = pci_read_config(child, *rid, 4);
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if (testval & 1) {
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device_printf(cbdev, "CIS Space is IO, expecting memory.\n");
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return NULL;
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}
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size = CARDBUS_MAPREG_MEM_SIZE(testval);
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if (size < 4096)
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size = 4096;
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/* allocate the memory space to read CIS */
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res = bus_alloc_resource(cbdev, SYS_RES_MEMORY, rid, 0, ~0, size,
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rman_make_alignment_flags(size) | RF_ACTIVE);
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if (res == NULL) {
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device_printf(cbdev, "Unable to allocate resource "
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"to read CIS.\n");
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return NULL;
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}
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pci_write_config(child, *rid,
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rman_get_start(res) | ((*rid == CARDBUS_ROM_REG)?
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CARDBUS_ROM_ENABLE : 0),
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4);
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PCI_ENABLE_IO(cbdev, child, SYS_RES_MEMORY);
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/* Flip to the right ROM image if CIS is in ROM */
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if (CARDBUS_CIS_SPACE(*start) == CARDBUS_CIS_ASI_ROM) {
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bus_space_tag_t bt;
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bus_space_handle_t bh;
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int imagenum;
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u_int32_t imagesize;
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int mystart = 0;
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int romnum = 0;
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int dataptr;
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bt = rman_get_bustag(res);
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bh = rman_get_bushandle(res);
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imagenum = CARDBUS_CIS_ASI_ROM_IMAGE(*start);
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for (romnum = 0;; romnum++) {
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if (bus_space_read_2(bt, bh,
|
|
mystart+CARDBUS_EXROM_SIGNATURE) != 0xaa55) {
|
|
device_printf(cbdev, "Bad header in rom %d: "
|
|
"[%x] %04x\n", romnum, mystart +
|
|
CARDBUS_EXROM_SIGNATURE,
|
|
bus_space_read_2(bt, bh,
|
|
mystart+CARDBUS_EXROM_SIGNATURE));
|
|
bus_release_resource(cbdev, SYS_RES_MEMORY,
|
|
*rid, res);
|
|
*rid = 0;
|
|
return NULL;
|
|
}
|
|
dataptr = mystart + bus_space_read_2(bt, bh,
|
|
mystart + CARDBUS_EXROM_DATA_PTR);
|
|
imagesize = bus_space_read_2(bt, bh,
|
|
dataptr + CARDBUS_EXROM_DATA_IMAGE_LENGTH);
|
|
|
|
if (imagesize == 0) {
|
|
/*
|
|
* XXX some ROMs seem to have this as zero,
|
|
* can we assume this means 1 block?
|
|
*/
|
|
imagesize = 1;
|
|
}
|
|
imagesize <<= 9;
|
|
|
|
if (romnum == imagenum)
|
|
break;
|
|
if ((bus_space_read_1(bt, bh, mystart +
|
|
CARDBUS_EXROM_DATA_INDICATOR) & 0x80) == 0) {
|
|
device_printf(cbdev, "Cannot read CIS: "
|
|
"Not enough images of rom\n");
|
|
return NULL;
|
|
}
|
|
mystart += imagesize;
|
|
}
|
|
*start = mystart + CARDBUS_CIS_ADDR(*start);
|
|
} else {
|
|
*start = CARDBUS_CIS_SPACE(*start);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
/*
|
|
* Dispatch the right handler function per tuple
|
|
*/
|
|
|
|
static int
|
|
decode_tuple(device_t cbdev, device_t child, int tupleid, int len,
|
|
u_int8_t *tupledata, u_int32_t start, u_int32_t *off,
|
|
struct tuple_callbacks *callbacks)
|
|
{
|
|
int i;
|
|
for (i = 0; callbacks[i].id != CISTPL_GENERIC; i++) {
|
|
if (tupleid == callbacks[i].id)
|
|
return callbacks[i].func(cbdev, child, tupleid, len,
|
|
tupledata, start, off, &callbacks[i]);
|
|
}
|
|
|
|
if (tupleid < CISTPL_CUSTOMSTART) {
|
|
device_printf(cbdev, "Undefined tuple encountered, "
|
|
"CIS parsing terminated\n");
|
|
return EINVAL;
|
|
}
|
|
return callbacks[i].func(cbdev, child, tupleid, len,
|
|
tupledata, start, off, NULL);
|
|
}
|
|
|
|
static int
|
|
cardbus_parse_cis(device_t cbdev, device_t child,
|
|
struct tuple_callbacks *callbacks)
|
|
{
|
|
u_int8_t tupledata[MAXTUPLESIZE];
|
|
int tupleid;
|
|
int len;
|
|
int expect_linktarget;
|
|
u_int32_t start, off;
|
|
struct resource *res;
|
|
int rid;
|
|
|
|
bzero(tupledata, MAXTUPLESIZE);
|
|
expect_linktarget = TRUE;
|
|
start = pci_read_config(child, CARDBUS_CIS_REG, 4);
|
|
off = 0;
|
|
res = cardbus_read_tuple_init(cbdev, child, &start, &rid);
|
|
if (res == NULL)
|
|
return ENXIO;
|
|
do {
|
|
if (0 != cardbus_read_tuple(cbdev, child, res, start, &off,
|
|
&tupleid, &len, tupledata)) {
|
|
device_printf(cbdev, "Failed to read CIS.\n");
|
|
cardbus_read_tuple_finish(cbdev, child, rid, res);
|
|
return ENXIO;
|
|
}
|
|
|
|
if (expect_linktarget && tupleid != CISTPL_LINKTARGET) {
|
|
device_printf(cbdev, "Expecting link target, got 0x%x\n",
|
|
tupleid);
|
|
cardbus_read_tuple_finish(cbdev, child, rid, res);
|
|
return EINVAL;
|
|
}
|
|
expect_linktarget = decode_tuple(cbdev, child, tupleid, len,
|
|
tupledata, start, &off, callbacks);
|
|
if (expect_linktarget != 0) {
|
|
cardbus_read_tuple_finish(cbdev, child, rid, res);
|
|
return expect_linktarget;
|
|
}
|
|
} while (tupleid != CISTPL_END);
|
|
cardbus_read_tuple_finish(cbdev, child, rid, res);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
barsort(const void *a, const void *b)
|
|
{
|
|
return (*(const struct resource_list_entry **)b)->count -
|
|
(*(const struct resource_list_entry **)a)->count;
|
|
}
|
|
|
|
static int
|
|
cardbus_alloc_resources(device_t cbdev, device_t child)
|
|
{
|
|
struct cardbus_devinfo *dinfo = device_get_ivars(child);
|
|
int count;
|
|
struct resource_list_entry *rle;
|
|
struct resource_list_entry **barlist;
|
|
int tmp;
|
|
u_int32_t mem_psize = 0, mem_nsize = 0, io_size = 0;
|
|
struct resource *res;
|
|
u_int32_t start,end;
|
|
int rid, flags;
|
|
|
|
count = 0;
|
|
SLIST_FOREACH(rle, &dinfo->resources, link) {
|
|
count++;
|
|
}
|
|
if (count == 0)
|
|
return 0;
|
|
barlist = malloc(sizeof(struct resource_list_entry*) * count, M_DEVBUF,
|
|
M_WAITOK);
|
|
count = 0;
|
|
SLIST_FOREACH(rle, &dinfo->resources, link) {
|
|
barlist[count] = rle;
|
|
if (rle->type == SYS_RES_IOPORT) {
|
|
io_size += rle->count;
|
|
} else if (rle->type == SYS_RES_MEMORY) {
|
|
if (dinfo->mprefetchable & BARBIT(rle->rid))
|
|
mem_psize += rle->count;
|
|
else
|
|
mem_nsize += rle->count;
|
|
}
|
|
count++;
|
|
}
|
|
|
|
/*
|
|
* We want to allocate the largest resource first, so that our
|
|
* allocated memory is packed.
|
|
*/
|
|
qsort(barlist, count, sizeof(struct resource_list_entry*), barsort);
|
|
|
|
/* Allocate prefetchable memory */
|
|
flags = 0;
|
|
for (tmp = 0; tmp < count; tmp++) {
|
|
if (barlist[tmp]->res == NULL &&
|
|
barlist[tmp]->type == SYS_RES_MEMORY &&
|
|
dinfo->mprefetchable & BARBIT(barlist[tmp]->rid)) {
|
|
flags = rman_make_alignment_flags(barlist[tmp]->count);
|
|
break;
|
|
}
|
|
}
|
|
if (flags > 0) { /* If any prefetchable memory is requested... */
|
|
/*
|
|
* First we allocate one big space for all resources of this
|
|
* type. We do this because our parent, pccbb, needs to open
|
|
* a window to forward all addresses within the window, and
|
|
* it would be best if nobody else has resources allocated
|
|
* within the window.
|
|
* (XXX: Perhaps there might be a better way to do this?)
|
|
*/
|
|
rid = 0;
|
|
res = bus_alloc_resource(cbdev, SYS_RES_MEMORY, &rid, 0,
|
|
(dinfo->mprefetchable & dinfo->mbelow1mb)?0xFFFFF:~0UL,
|
|
mem_psize, flags);
|
|
start = rman_get_start(res);
|
|
end = rman_get_end(res);
|
|
DEVPRINTF((cbdev, "Prefetchable memory at %x-%x\n", start, end));
|
|
/*
|
|
* Now that we know the region is free, release it and hand it
|
|
* out piece by piece.
|
|
*/
|
|
bus_release_resource(cbdev, SYS_RES_MEMORY, rid, res);
|
|
for (tmp = 0; tmp < count; tmp++) {
|
|
if (barlist[tmp]->res == NULL &&
|
|
barlist[tmp]->type == SYS_RES_MEMORY &&
|
|
dinfo->mprefetchable & BARBIT(barlist[tmp]->rid)) {
|
|
barlist[tmp]->res = bus_alloc_resource(cbdev,
|
|
barlist[tmp]->type,
|
|
&barlist[tmp]->rid, start, end,
|
|
barlist[tmp]->count,
|
|
rman_make_alignment_flags(
|
|
barlist[tmp]->count));
|
|
if (barlist[tmp]->res == NULL) {
|
|
mem_nsize += barlist[tmp]->count;
|
|
dinfo->mprefetchable &=
|
|
~BARBIT(barlist[tmp]->rid);
|
|
DEVPRINTF((cbdev, "Cannot pre-allocate "
|
|
"prefetchable memory, will try as "
|
|
"non-prefetchable.\n"));
|
|
} else {
|
|
barlist[tmp]->start =
|
|
rman_get_start(barlist[tmp]->res);
|
|
barlist[tmp]->end =
|
|
rman_get_end(barlist[tmp]->res);
|
|
pci_write_config(child,
|
|
barlist[tmp]->rid,
|
|
barlist[tmp]->start, 4);
|
|
DEVPRINTF((cbdev, "Prefetchable memory "
|
|
"rid=%x at %lx-%lx\n",
|
|
barlist[tmp]->rid,
|
|
barlist[tmp]->start,
|
|
barlist[tmp]->end));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Allocate non-prefetchable memory */
|
|
flags = 0;
|
|
for (tmp = 0; tmp < count; tmp++) {
|
|
if (barlist[tmp]->res == NULL &&
|
|
barlist[tmp]->type == SYS_RES_MEMORY) {
|
|
flags = rman_make_alignment_flags(barlist[tmp]->count);
|
|
break;
|
|
}
|
|
}
|
|
if (flags > 0) { /* If any non-prefetchable memory is requested... */
|
|
/*
|
|
* First we allocate one big space for all resources of this
|
|
* type. We do this because our parent, pccbb, needs to open
|
|
* a window to forward all addresses within the window, and
|
|
* it would be best if nobody else has resources allocated
|
|
* within the window.
|
|
* (XXX: Perhaps there might be a better way to do this?)
|
|
*/
|
|
rid = 0;
|
|
res = bus_alloc_resource(cbdev, SYS_RES_MEMORY, &rid, 0,
|
|
((~dinfo->mprefetchable) & dinfo->mbelow1mb)?0xFFFFF:~0UL,
|
|
mem_nsize, flags);
|
|
start = rman_get_start(res);
|
|
end = rman_get_end(res);
|
|
DEVPRINTF((cbdev, "Non-prefetchable memory at %x-%x\n",
|
|
start, end));
|
|
/*
|
|
* Now that we know the region is free, release it and hand it
|
|
* out piece by piece.
|
|
*/
|
|
bus_release_resource(cbdev, SYS_RES_MEMORY, rid, res);
|
|
for (tmp = 0; tmp < count; tmp++) {
|
|
if (barlist[tmp]->res == NULL &&
|
|
barlist[tmp]->type == SYS_RES_MEMORY) {
|
|
barlist[tmp]->res = bus_alloc_resource(cbdev,
|
|
barlist[tmp]->type, &barlist[tmp]->rid,
|
|
start, end, barlist[tmp]->count,
|
|
rman_make_alignment_flags(
|
|
barlist[tmp]->count));
|
|
if (barlist[tmp]->res == NULL) {
|
|
DEVPRINTF((cbdev, "Cannot pre-allocate "
|
|
"memory for cardbus device\n"));
|
|
return ENOMEM;
|
|
}
|
|
barlist[tmp]->start =
|
|
rman_get_start(barlist[tmp]->res);
|
|
barlist[tmp]->end = rman_get_end(
|
|
barlist[tmp]->res);
|
|
pci_write_config(child, barlist[tmp]->rid,
|
|
barlist[tmp]->start, 4);
|
|
DEVPRINTF((cbdev, "Non-prefetchable memory "
|
|
"rid=%x at %lx-%lx (%lx)\n",
|
|
barlist[tmp]->rid, barlist[tmp]->start,
|
|
barlist[tmp]->end, barlist[tmp]->count));
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Allocate IO ports */
|
|
flags = 0;
|
|
for (tmp = 0; tmp < count; tmp++) {
|
|
if (barlist[tmp]->res == NULL &&
|
|
barlist[tmp]->type == SYS_RES_IOPORT) {
|
|
flags = rman_make_alignment_flags(barlist[tmp]->count);
|
|
break;
|
|
}
|
|
}
|
|
if (flags > 0) { /* If any IO port is requested... */
|
|
/*
|
|
* First we allocate one big space for all resources of this
|
|
* type. We do this because our parent, pccbb, needs to open
|
|
* a window to forward all addresses within the window, and
|
|
* it would be best if nobody else has resources allocated
|
|
* within the window.
|
|
* (XXX: Perhaps there might be a better way to do this?)
|
|
*/
|
|
rid = 0;
|
|
res = bus_alloc_resource(cbdev, SYS_RES_IOPORT, &rid, 0,
|
|
(dinfo->ibelow1mb)?0xFFFFF:~0UL, io_size, flags);
|
|
start = rman_get_start(res);
|
|
end = rman_get_end(res);
|
|
DEVPRINTF((cbdev, "IO port at %x-%x\n", start, end));
|
|
/*
|
|
* Now that we know the region is free, release it and hand it
|
|
* out piece by piece.
|
|
*/
|
|
bus_release_resource(cbdev, SYS_RES_IOPORT, rid, res);
|
|
for (tmp = 0; tmp < count; tmp++) {
|
|
if (barlist[tmp]->res == NULL &&
|
|
barlist[tmp]->type == SYS_RES_IOPORT) {
|
|
barlist[tmp]->res = bus_alloc_resource(cbdev,
|
|
barlist[tmp]->type, &barlist[tmp]->rid,
|
|
start, end, barlist[tmp]->count,
|
|
rman_make_alignment_flags(
|
|
barlist[tmp]->count));
|
|
if (barlist[tmp]->res == NULL) {
|
|
DEVPRINTF((cbdev, "Cannot pre-allocate "
|
|
"IO port for cardbus device\n"));
|
|
return ENOMEM;
|
|
}
|
|
barlist[tmp]->start =
|
|
rman_get_start(barlist[tmp]->res);
|
|
barlist[tmp]->end =
|
|
rman_get_end(barlist[tmp]->res);
|
|
pci_write_config(child, barlist[tmp]->rid,
|
|
barlist[tmp]->start, 4);
|
|
DEVPRINTF((cbdev, "IO port rid=%x at %lx-%lx\n",
|
|
barlist[tmp]->rid, barlist[tmp]->start,
|
|
barlist[tmp]->end));
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Allocate IRQ */
|
|
/* XXX: Search CIS for IRQ description */
|
|
rid = 0;
|
|
res = bus_alloc_resource(cbdev, SYS_RES_IRQ, &rid, 0, ~0UL, 1,
|
|
RF_SHAREABLE);
|
|
resource_list_add(&dinfo->resources, SYS_RES_IRQ, rid,
|
|
rman_get_start(res), rman_get_end(res), 1);
|
|
rle = resource_list_find(&dinfo->resources, SYS_RES_IRQ, rid);
|
|
rle->res = res;
|
|
dinfo->cfg.intline = rman_get_start(res);
|
|
pci_write_config(child, PCIR_INTLINE, rman_get_start(res), 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Adding a memory/io resource (sans CIS)
|
|
*/
|
|
|
|
static void
|
|
cardbus_add_map(device_t cbdev, device_t child, int reg)
|
|
{
|
|
struct cardbus_devinfo *dinfo = device_get_ivars(child);
|
|
struct resource_list_entry *rle;
|
|
u_int32_t size;
|
|
u_int32_t testval;
|
|
int type;
|
|
|
|
SLIST_FOREACH(rle, &dinfo->resources, link) {
|
|
if (rle->rid == reg)
|
|
return;
|
|
}
|
|
|
|
if (reg == CARDBUS_ROM_REG)
|
|
testval = CARDBUS_ROM_ADDRMASK;
|
|
else
|
|
testval = ~0;
|
|
|
|
pci_write_config(child, reg, testval, 4);
|
|
testval = pci_read_config(child, reg, 4);
|
|
|
|
if (testval == ~0 || testval == 0)
|
|
return;
|
|
|
|
if ((testval & 1) == 0)
|
|
type = SYS_RES_MEMORY;
|
|
else
|
|
type = SYS_RES_IOPORT;
|
|
|
|
size = CARDBUS_MAPREG_MEM_SIZE(testval);
|
|
device_printf(cbdev, "Resource not specified in CIS: id=%x, size=%x\n",
|
|
reg, size);
|
|
resource_list_add(&dinfo->resources, type, reg, 0UL, ~0UL, size);
|
|
}
|
|
|
|
static void
|
|
cardbus_pickup_maps(device_t cbdev, device_t child)
|
|
{
|
|
struct cardbus_devinfo *dinfo = device_get_ivars(child);
|
|
struct cardbus_quirk *q;
|
|
int reg;
|
|
|
|
/*
|
|
* Try to pick up any resources that was not specified in CIS.
|
|
* Some devices (eg, 3c656) does not list all resources required by
|
|
* the driver in its CIS.
|
|
* XXX: should we do this or use quirks?
|
|
*/
|
|
for (reg = 0; reg < dinfo->cfg.nummaps; reg++) {
|
|
cardbus_add_map(cbdev, child, PCIR_MAPS + reg * 4);
|
|
}
|
|
|
|
for (q = &cardbus_quirks[0]; q->devid; q++) {
|
|
if (q->devid == ((dinfo->cfg.device << 16) | dinfo->cfg.vendor)
|
|
&& q->type == CARDBUS_QUIRK_MAP_REG) {
|
|
cardbus_add_map(cbdev, child, q->arg1);
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
cardbus_cis_read(device_t cbdev, device_t child, u_int8_t id,
|
|
struct cis_tupleinfo **buff, int *nret)
|
|
{
|
|
struct tuple_callbacks cisread_callbacks[] = {
|
|
MAKETUPLE(NULL, nothing),
|
|
/* first entry will be overwritten */
|
|
MAKETUPLE(NULL, nothing),
|
|
MAKETUPLE(DEVICE, nothing),
|
|
MAKETUPLE(LONG_LINK_CB, unhandled),
|
|
MAKETUPLE(INDIRECT, unhandled),
|
|
MAKETUPLE(CONFIG_CB, nothing),
|
|
MAKETUPLE(CFTABLE_ENTRY_CB, nothing),
|
|
MAKETUPLE(LONGLINK_MFC, unhandled),
|
|
MAKETUPLE(BAR, nothing),
|
|
MAKETUPLE(PWR_MGMNT, nothing),
|
|
MAKETUPLE(EXTDEVICE, nothing),
|
|
MAKETUPLE(CHECKSUM, nothing),
|
|
MAKETUPLE(LONGLINK_A, unhandled),
|
|
MAKETUPLE(LONGLINK_C, unhandled),
|
|
MAKETUPLE(LINKTARGET, nothing),
|
|
MAKETUPLE(NO_LINK, nothing),
|
|
MAKETUPLE(VERS_1, nothing),
|
|
MAKETUPLE(ALTSTR, nothing),
|
|
MAKETUPLE(DEVICE_A, nothing),
|
|
MAKETUPLE(JEDEC_C, nothing),
|
|
MAKETUPLE(JEDEC_A, nothing),
|
|
MAKETUPLE(CONFIG, nothing),
|
|
MAKETUPLE(CFTABLE_ENTRY, nothing),
|
|
MAKETUPLE(DEVICE_OC, nothing),
|
|
MAKETUPLE(DEVICE_OA, nothing),
|
|
MAKETUPLE(DEVICE_GEO, nothing),
|
|
MAKETUPLE(DEVICE_GEO_A, nothing),
|
|
MAKETUPLE(MANFID, nothing),
|
|
MAKETUPLE(FUNCID, nothing),
|
|
MAKETUPLE(FUNCE, nothing),
|
|
MAKETUPLE(SWIL, nothing),
|
|
MAKETUPLE(VERS_2, nothing),
|
|
MAKETUPLE(FORMAT, nothing),
|
|
MAKETUPLE(GEOMETRY, nothing),
|
|
MAKETUPLE(BYTEORDER, nothing),
|
|
MAKETUPLE(DATE, nothing),
|
|
MAKETUPLE(BATTERY, nothing),
|
|
MAKETUPLE(ORG, nothing),
|
|
MAKETUPLE(END, end),
|
|
MAKETUPLE(GENERIC, nothing),
|
|
};
|
|
int ret;
|
|
|
|
cisread_callbacks[0].id = id;
|
|
cisread_callbacks[0].name = "COPY";
|
|
cisread_callbacks[0].func = decode_tuple_copy;
|
|
ncisread_buf = 0;
|
|
cisread_buf = NULL;
|
|
ret = cardbus_parse_cis(cbdev, child, cisread_callbacks);
|
|
|
|
*buff = cisread_buf;
|
|
*nret = ncisread_buf;
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
cardbus_cis_free(device_t cbdev, struct cis_tupleinfo *buff, int *nret)
|
|
{
|
|
int i;
|
|
for (i = 0; i < *nret; i++)
|
|
free(buff[i].data, M_DEVBUF);
|
|
if (*nret > 0)
|
|
free(buff, M_DEVBUF);
|
|
}
|
|
|
|
int
|
|
cardbus_do_cis(device_t cbdev, device_t child)
|
|
{
|
|
int ret;
|
|
struct tuple_callbacks init_callbacks[] = {
|
|
MAKETUPLE(NULL, generic),
|
|
MAKETUPLE(DEVICE, generic),
|
|
MAKETUPLE(LONG_LINK_CB, unhandled),
|
|
MAKETUPLE(INDIRECT, unhandled),
|
|
MAKETUPLE(CONFIG_CB, generic),
|
|
MAKETUPLE(CFTABLE_ENTRY_CB, generic),
|
|
MAKETUPLE(LONGLINK_MFC, unhandled),
|
|
MAKETUPLE(BAR, bar),
|
|
MAKETUPLE(PWR_MGMNT, generic),
|
|
MAKETUPLE(EXTDEVICE, generic),
|
|
MAKETUPLE(CHECKSUM, generic),
|
|
MAKETUPLE(LONGLINK_A, unhandled),
|
|
MAKETUPLE(LONGLINK_C, unhandled),
|
|
MAKETUPLE(LINKTARGET, linktarget),
|
|
MAKETUPLE(NO_LINK, generic),
|
|
MAKETUPLE(VERS_1, vers_1),
|
|
MAKETUPLE(ALTSTR, generic),
|
|
MAKETUPLE(DEVICE_A, generic),
|
|
MAKETUPLE(JEDEC_C, generic),
|
|
MAKETUPLE(JEDEC_A, generic),
|
|
MAKETUPLE(CONFIG, generic),
|
|
MAKETUPLE(CFTABLE_ENTRY, generic),
|
|
MAKETUPLE(DEVICE_OC, generic),
|
|
MAKETUPLE(DEVICE_OA, generic),
|
|
MAKETUPLE(DEVICE_GEO, generic),
|
|
MAKETUPLE(DEVICE_GEO_A, generic),
|
|
MAKETUPLE(MANFID, manfid),
|
|
MAKETUPLE(FUNCID, funcid),
|
|
MAKETUPLE(FUNCE, funce),
|
|
MAKETUPLE(SWIL, generic),
|
|
MAKETUPLE(VERS_2, generic),
|
|
MAKETUPLE(FORMAT, generic),
|
|
MAKETUPLE(GEOMETRY, generic),
|
|
MAKETUPLE(BYTEORDER, generic),
|
|
MAKETUPLE(DATE, generic),
|
|
MAKETUPLE(BATTERY, generic),
|
|
MAKETUPLE(ORG, generic),
|
|
MAKETUPLE(END, end),
|
|
MAKETUPLE(GENERIC, generic),
|
|
};
|
|
|
|
ret = cardbus_parse_cis(cbdev, child, init_callbacks);
|
|
if (ret < 0)
|
|
return ret;
|
|
cardbus_pickup_maps(cbdev, child);
|
|
return cardbus_alloc_resources(cbdev, child);
|
|
}
|