561 lines
13 KiB
C
561 lines
13 KiB
C
/*
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* Copyright (c) 1995 Andrew McRae. 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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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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#ifndef lint
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static const char rcsid[] =
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"$Id: cardd.c,v 1.31 1998/04/20 15:24:28 nate Exp $";
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#endif /* not lint */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include "cardd.h"
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static struct card_config *assign_driver(struct card *);
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static int assign_io(struct slot *);
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static int setup_slot(struct slot *);
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static void card_inserted(struct slot *);
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static void card_removed(struct slot *);
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static void pr_cmd(struct cmd *);
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static void read_ether(struct slot *);
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/*
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* Dump configuration file data.
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*/
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void
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dump_config_file(void)
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{
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struct card *cp;
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struct card_config *confp;
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for (cp = cards; cp; cp = cp->next) {
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printf("Card manuf %s, vers %s\n", cp->manuf, cp->version);
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printf("Configuration entries:\n");
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for (confp = cp->config; confp; confp = confp->next)
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printf("\tIndex code = 0x%x, driver name = %s\n",
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confp->index, confp->driver->name);
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if (cp->insert) {
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printf("Insert commands are:\n");
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pr_cmd(cp->insert);
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}
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if (cp->remove) {
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printf("Remove commands are:\n");
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pr_cmd(cp->remove);
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}
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}
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}
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static void
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pr_cmd(struct cmd *cp)
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{
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while (cp) {
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printf("\t%s\n", cp->line);
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cp = cp->next;
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}
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}
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/*
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* readslots - read all the PCMCIA slots, and build
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* a list of the slots.
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*/
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struct slot *
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readslots(void)
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{
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char name[128];
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int i, fd;
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struct slot *slots, *sp;
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slots = NULL;
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for (i = 0; i < MAXSLOT; i++) {
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sprintf(name, CARD_DEVICE, i);
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fd = open(name, 2);
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if (fd < 0)
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continue;
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sp = xmalloc(sizeof(*sp));
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sp->fd = fd;
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sp->name = newstr(name);
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sp->slot = i;
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/* Check to see if the controller memory has been set up. */
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if (slots == 0) {
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unsigned long mem = 0;
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if (ioctl(fd, PIOCRWMEM, &mem))
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logerr("ioctl (PIOCRWMEM)");
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#ifdef DEBUG
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logmsg("mem=0x%x\n", mem);
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#endif
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if (mem == 0) {
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mem = alloc_memory(4 * 1024);
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if (mem == 0)
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die("can't allocate memory for controller access");
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if (ioctl(fd, PIOCRWMEM, &mem))
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logerr("ioctl (PIOCRWMEM)");
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}
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}
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sp->next = slots;
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slots = sp;
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slot_change(sp);
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}
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return (slots);
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}
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/*
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* slot_change - Card status has changed.
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* read new state and process.
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*/
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void
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slot_change(struct slot *sp)
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{
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struct slotstate state;
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if (ioctl(sp->fd, PIOCGSTATE, &state)) {
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logerr("ioctl (PIOCGSTATE)");
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return;
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}
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switch (state.state) {
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case empty:
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case noslot:
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/* Debounce potentially incorrectly reported removals */
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if (state.laststate == filled || state.laststate == suspend)
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card_removed(sp);
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break;
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case filled:
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card_inserted(sp);
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break;
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case suspend:
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/* ignored */
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break;
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}
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}
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/*
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* card_removed - card has been removed from slot.
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* Execute the remove commands, and clear the slot's state.
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* Execute the device commands, then the driver commands
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* and then the card commands. This is the reverse
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* order to the insertion commands
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*/
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void
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card_removed(struct slot *sp)
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{
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struct card *cp;
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if (sp->cis)
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freecis(sp->cis);
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if (sp->config) {
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sp->config->inuse = 0;
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sp->config->driver->inuse = 0;
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}
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if ((cp = sp->card) != 0)
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execute(cp->remove, sp);
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sp->cis = 0;
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sp->config = 0;
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/* release io */
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bit_nset(io_avail, sp->io.addr, sp->io.addr + sp->io.size - 1);
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}
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/*
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* card_inserted - Card has been inserted;
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* - Read the CIS
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* - match the card type.
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* - Match the driver and allocate a driver instance.
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* - Allocate I/O ports, memory and IRQ.
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* - Set up the slot.
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* - assign the driver (if failed, then terminate).
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* - Run the card commands.
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* - Run the driver commands
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* - Run the device commands
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*/
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void
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card_inserted(struct slot *sp)
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{
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struct card *cp;
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sleep(5);
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sp->cis = readcis(sp->fd);
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if (sp->cis == 0) {
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logmsg("Error reading CIS on %s\n", sp->name);
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return;
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}
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#if 0
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dumpcis(sp->cis);
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#endif
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for (cp = cards; cp; cp = cp->next)
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if (strncmp(cp->manuf, sp->cis->manuf, CIS_MAXSTR) == 0 &&
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strncmp(cp->version, sp->cis->vers, CIS_MAXSTR) == 0)
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break;
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sp->card = cp;
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#if 0
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reset_slot(sp);
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#endif
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if (cp == 0) {
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logmsg("No card in database for \"%s\"(\"%s\")",
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sp->cis->manuf, sp->cis->vers);
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return;
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}
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if (cp->ether)
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read_ether(sp);
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if ((sp->config = assign_driver(cp)) == NULL)
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return;
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if (assign_io(sp)) {
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logmsg("Resource allocation failure for %s", sp->cis->manuf);
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return;
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}
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/*
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*
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* Once assigned, set up the I/O & mem contexts, set up the
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* windows, and then attach the driver.
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*/
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if (setup_slot(sp))
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execute(cp->insert, sp);
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#if 0
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else
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reset_slot(sp);
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#endif
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}
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/*
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* read_ether - read ethernet address from card. Offset is
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* the offset into the attribute memory of the card.
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*/
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static void
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read_ether(struct slot *sp)
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{
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unsigned char net_addr[12];
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lseek(sp->fd, (off_t)sp->card->ether, SEEK_SET);
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if (read(sp->fd, net_addr, sizeof(net_addr)) != sizeof(net_addr)) {
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logerr("read err on net addr");
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return;
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}
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sp->eaddr[0] = net_addr[0];
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sp->eaddr[1] = net_addr[2];
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sp->eaddr[2] = net_addr[4];
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sp->eaddr[3] = net_addr[6];
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sp->eaddr[4] = net_addr[8];
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sp->eaddr[5] = net_addr[10];
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logmsg("Ether=%02x:%02x:%02x:%02x:%02x:%02x\n",
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sp->eaddr[0], sp->eaddr[1], sp->eaddr[2],
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sp->eaddr[3], sp->eaddr[4], sp->eaddr[5]);
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}
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/*
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* assign_driver - Assign driver to card.
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* First, see if an existing driver is already setup.
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*/
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static struct card_config *
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assign_driver(struct card *cp)
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{
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struct driver *drvp;
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struct card_config *conf;
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for (conf = cp->config; conf; conf = conf->next)
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if (conf->inuse == 0 && conf->driver->card == cp &&
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conf->driver->config == conf) {
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#ifdef DEBUG
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logmsg("Found existing driver (%s) for %s\n",
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conf->driver->name, cp->manuf);
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#endif
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return (conf);
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}
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/*
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* New driver must be allocated. Find one that matches the
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* any configurations not in use.
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*/
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for (conf = cp->config; conf; conf = conf->next)
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if (conf->inuse == 0 && conf->driver->card == 0)
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break;
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if (conf == 0) {
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logmsg("No free configuration for card %s", cp->manuf);
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return (NULL);
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}
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/*
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* Now we have a free driver and a matching configuration.
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* Before assigning and allocating everything, check to
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* see if a device class can be allocated to this.
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*/
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drvp = conf->driver;
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/* If none available, then we can't use this card. */
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if (drvp->inuse) {
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logmsg("Driver already being used for %s", cp->manuf);
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return (NULL);
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}
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/* Allocate a free IRQ if none has been specified */
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if (conf->irq == 0) {
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int i;
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for (i = 1; i < 16; i++)
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if (pool_irq[i]) {
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conf->irq = i;
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pool_irq[i] = 0;
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break;
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}
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if (conf->irq == 0) {
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logmsg("Failed to allocate IRQ for %s\n", cp->manuf);
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return (NULL);
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}
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}
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drvp->card = cp;
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drvp->config = conf;
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drvp->inuse = 1;
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conf->inuse = 1;
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return (conf);
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}
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/*
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* assign_io - Allocate resources to slot matching the
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* configuration index selected.
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*/
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static int
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assign_io(struct slot *sp)
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{
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struct cis *cis;
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struct cis_config *cisconf, *defconf;
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cis = sp->cis;
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defconf = cis->def_config;
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for (cisconf = cis->conf; cisconf; cisconf = cisconf->next)
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if (cisconf->id == sp->config->index)
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break;
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if (cisconf == 0)
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return (-1);
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sp->card_config = cisconf;
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/*
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* Found a matching configuration. Now look at the I/O, memory and IRQ
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* to create the desired parameters. Look at memory first.
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*/
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if (cisconf->memspace || (defconf && defconf->memspace)) {
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struct cis_memblk *mp;
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mp = cisconf->mem;
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if (!cisconf->memspace)
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mp = defconf->mem;
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sp->mem.size = mp->length;
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sp->mem.cardaddr = mp->address;
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/* For now, we allocate our own memory from the pool. */
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sp->mem.addr = sp->config->driver->mem;
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/*
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* Host memory address is required. Allocate one
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* from our pool.
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*/
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if (sp->mem.size && sp->mem.addr == 0) {
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sp->mem.addr = alloc_memory(mp->length);
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if (sp->mem.addr == 0)
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return (-2);
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sp->config->driver->mem = sp->mem.addr;
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}
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sp->mem.cardaddr = 0x4000;
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#ifdef DEBUG
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logmsg("Using mem addr 0x%x, size %d, card addr 0x%x\n",
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sp->mem.addr, sp->mem.size, sp->mem.cardaddr);
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#endif
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}
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/* Now look at I/O. */
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bzero(&sp->io, sizeof(sp->io));
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if (cisconf->iospace || (defconf && defconf->iospace)) {
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struct cis_config *cp;
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cp = cisconf;
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if (!cisconf->iospace)
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cp = defconf;
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/*
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* If # of I/O lines decoded == 10, then card does its
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* own decoding.
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*
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* If an I/O block exists, then use it.
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* If no address (but a length) is available, allocate
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* from the pool.
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*/
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if (cp->io) {
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sp->io.addr = cp->io->addr;
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sp->io.size = cp->io->size;
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} else
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/*
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* No I/O block, assume the address lines
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* decode gives the size.
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*/
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sp->io.size = 1 << cp->io_addr;
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if (sp->io.addr == 0) {
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int i = bit_fns(io_avail, IOPORTS, sp->io.size);
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if (i < 0)
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return (-1);
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sp->io.addr = i;
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}
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bit_nclear(io_avail, sp->io.addr,
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sp->io.addr + sp->io.size - 1);
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/* Set up the size to take into account the decode lines. */
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sp->io.cardaddr = cp->io_addr;
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switch (cp->io_bus) {
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case 0:
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break;
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case 1:
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sp->io.flags = IODF_WS;
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break;
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case 2:
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sp->io.flags = IODF_WS | IODF_CS16;
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break;
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case 3:
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sp->io.flags = IODF_WS | IODF_CS16 | IODF_16BIT;
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break;
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}
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#ifdef DEBUG
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logmsg("Using I/O addr 0x%x, size %d\n",
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sp->io.addr, sp->io.size);
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#endif
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}
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sp->irq = sp->config->irq;
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return (0);
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}
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/*
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* setup_slot - Allocate the I/O and memory contexts
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* return true if completed OK.
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*/
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static int
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setup_slot(struct slot *sp)
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{
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struct mem_desc mem;
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struct io_desc io;
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struct dev_desc drv;
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struct driver *drvp = sp->config->driver;
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char c;
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off_t offs;
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int rw_flags;
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memset(&io, 0, sizeof io);
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memset(&drv, 0, sizeof drv);
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offs = sp->cis->reg_addr;
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rw_flags = MDF_ATTR;
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ioctl(sp->fd, PIOCRWFLAG, &rw_flags);
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lseek(sp->fd, offs, SEEK_SET);
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c = 0x80;
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write(sp->fd, &c, sizeof(c));
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usleep(sp->card->reset_time * 1000);
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lseek(sp->fd, offs, SEEK_SET);
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c = 0x00;
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write(sp->fd, &c, sizeof(c));
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usleep(sp->card->reset_time * 1000);
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lseek(sp->fd, offs, SEEK_SET);
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c = sp->config->index;
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c |= 0x40;
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write(sp->fd, &c, sizeof(c));
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#ifdef DEBUG
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logmsg("Setting config reg at offs 0x%lx to 0x%x, Reset time = %d ms\n",
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(unsigned long)offs, c, sp->card->reset_time);
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#endif
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sleep(5);
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usleep(sp->card->reset_time * 1000);
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/* If other config registers exist, set them up. */
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if (sp->cis->ccrs & 2) {
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/* CCSR */
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c = 0;
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if (sp->cis->def_config && sp->cis->def_config->misc_valid &&
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(sp->cis->def_config->misc & 0x8))
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c |= 0x08;
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if (sp->card_config->io_bus == 1)
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c |= 0x20;
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lseek(sp->fd, offs + 2, SEEK_SET);
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write(sp->fd, &c, sizeof(c));
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}
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mem.window = 0;
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if (sp->mem.addr) {
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mem.window = 0;
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mem.flags = sp->mem.flags | MDF_ACTIVE | MDF_16BITS;
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mem.start = (caddr_t) sp->mem.addr;
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mem.card = sp->mem.cardaddr;
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mem.size = sp->mem.size;
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if (ioctl(sp->fd, PIOCSMEM, &mem)) {
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logerr("ioctl (PIOCSMEM)");
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return (0);
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}
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}
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io.window = 0;
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if (sp->io.size) {
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io.flags = sp->io.flags;
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io.start = sp->io.addr;
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io.size = sp->io.size;
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#if 0
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io.start = sp->io.addr & ~((1 << sp->io.cardaddr) - 1);
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io.size = 1 << sp->io.cardaddr;
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if (io.start < 0x100) {
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io.start = 0x100;
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io.size = 0x300;
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}
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#endif
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#ifdef DEBUG
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logmsg("Assigning I/O window %d, start 0x%x, size 0x%x flags 0x%x\n",
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io.window, io.start, io.size, io.flags);
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#endif
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io.flags |= IODF_ACTIVE;
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if (ioctl(sp->fd, PIOCSIO, &io)) {
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logerr("ioctl (PIOCSIO)");
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return (0);
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}
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}
|
|
strcpy(drv.name, drvp->kernel);
|
|
drv.unit = drvp->unit;
|
|
drv.irqmask = 1 << sp->irq;
|
|
drv.flags = 0x80;
|
|
if (sp->mem.size) {
|
|
drv.mem = sp->mem.addr;
|
|
drv.memsize = sp->mem.size;
|
|
} else {
|
|
drv.mem = 0;
|
|
drv.memsize = 0;
|
|
}
|
|
if (sp->io.size)
|
|
drv.iobase = sp->io.addr;
|
|
else
|
|
drv.iobase = 0;
|
|
#ifdef DEBUG
|
|
logmsg("Assign %s%d, io 0x%x, mem 0x%lx, %d bytes, irq %d, flags %x\n",
|
|
drv.name, drv.unit, drv.iobase, drv.mem, drv.memsize, sp->irq, drv.flags);
|
|
#endif
|
|
|
|
/*
|
|
* If the driver fails to be connected to the device,
|
|
* then it may mean that the driver did not recognise it.
|
|
*/
|
|
memcpy(drv.misc, sp->eaddr, 6);
|
|
if (ioctl(sp->fd, PIOCSDRV, &drv)) {
|
|
logmsg("driver allocation failed for %s", sp->card->manuf);
|
|
return (0);
|
|
}
|
|
return (1);
|
|
}
|