7ba175ac23
code into cardbus and s/pci/cardbus. This exposes a few pci_* functions that are now static. This work is similar to work Justin posted to the mobile list about a year or two ago, which I have neglected since then. This is a subset of his current work with the multiple inheritance newbus architecutre. When completed, that will eliminate the need for pci/pci_private.h. Similar work is needed for the cardbus_cis and pccard_cis code as well.
387 lines
11 KiB
C
387 lines
11 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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/* XXX pci_cfgfree vs cardbus_cfgfree */
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/*
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* Cardbus Bus Driver
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*
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* Written by Jonathan Chen <jon@freebsd.org>
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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/malloc.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#include <sys/pciio.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pci_private.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 "power_if.h"
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#include "card_if.h"
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#include "pcib_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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static int cardbus_probe(device_t cbdev);
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static int cardbus_attach(device_t cbdev);
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static int cardbus_detach(device_t cbdev);
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static void device_setup_regs(device_t brdev, int b, int s, int f,
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pcicfgregs *cfg);
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static int cardbus_attach_card(device_t cbdev);
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static int cardbus_detach_card(device_t cbdev, int flags);
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static void cardbus_driver_added(device_t cbdev, driver_t *driver);
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static void cardbus_release_all_resources(device_t cbdev,
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struct cardbus_devinfo *dinfo);
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/************************************************************************/
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/* Probe/Attach */
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/************************************************************************/
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static int
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cardbus_probe(device_t cbdev)
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{
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device_set_desc(cbdev, "CardBus bus");
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return 0;
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}
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static int
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cardbus_attach(device_t cbdev)
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{
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return 0;
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}
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static int
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cardbus_detach(device_t cbdev)
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{
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cardbus_detach_card(cbdev, DETACH_FORCE);
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return 0;
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}
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static int
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cardbus_suspend(device_t self)
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{
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cardbus_detach_card(self, DETACH_FORCE);
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return (0);
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}
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static int
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cardbus_resume(device_t self)
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{
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return (0);
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}
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/************************************************************************/
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/* Attach/Detach card */
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/************************************************************************/
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static void
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device_setup_regs(device_t brdev, int b, int s, int f, pcicfgregs *cfg)
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{
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PCIB_WRITE_CONFIG(brdev, b, s, f, PCIR_INTLINE,
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pci_get_irq(device_get_parent(brdev)), 1);
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cfg->intline = PCIB_READ_CONFIG(brdev, b, s, f, PCIR_INTLINE, 1);
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PCIB_WRITE_CONFIG(brdev, b, s, f, PCIR_CACHELNSZ, 0x08, 1);
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cfg->cachelnsz = PCIB_READ_CONFIG(brdev, b, s, f, PCIR_CACHELNSZ, 1);
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PCIB_WRITE_CONFIG(brdev, b, s, f, PCIR_LATTIMER, 0xa8, 1);
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cfg->lattimer = PCIB_READ_CONFIG(brdev, b, s, f, PCIR_LATTIMER, 1);
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PCIB_WRITE_CONFIG(brdev, b, s, f, PCIR_MINGNT, 0x14, 1);
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cfg->mingnt = PCIB_READ_CONFIG(brdev, b, s, f, PCIR_MINGNT, 1);
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PCIB_WRITE_CONFIG(brdev, b, s, f, PCIR_MAXLAT, 0x14, 1);
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cfg->maxlat = PCIB_READ_CONFIG(brdev, b, s, f, PCIR_MAXLAT, 1);
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}
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static int
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cardbus_attach_card(device_t cbdev)
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{
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device_t brdev = device_get_parent(cbdev);
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int cardattached = 0;
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static int curr_bus_number = 2; /* XXX EVILE BAD (see below) */
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int bus, slot, func;
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struct cardbus_devinfo *dinfo;
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int cardbusfunchigh = 0;
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cardbus_detach_card(cbdev, 0); /* detach existing cards */
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POWER_ENABLE_SOCKET(brdev, cbdev);
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bus = pcib_get_bus(cbdev);
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if (bus == 0) {
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/*
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* XXX EVILE BAD XXX
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* Not all BIOSes initialize the secondary bus number properly,
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* so if the default is bad, we just put one in and hope it
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* works.
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*/
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bus = curr_bus_number;
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pci_write_config(brdev, PCIR_SECBUS_2, curr_bus_number, 1);
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pci_write_config(brdev, PCIR_SUBBUS_2, curr_bus_number + 2, 1);
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curr_bus_number += 3;
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}
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/* For each function, set it up and try to attach a driver to it */
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for (slot = 0; slot <= CARDBUS_SLOTMAX; slot++) {
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cardbusfunchigh = 0;
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for (func = 0; func <= cardbusfunchigh; func++) {
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dinfo = (struct cardbus_devinfo *)
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pci_read_device(brdev, bus, slot, func);
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if (dinfo == NULL)
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continue;
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if (dinfo->pci.cfg.mfdev)
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cardbusfunchigh = CARDBUS_FUNCMAX;
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device_setup_regs(brdev, bus, slot, func,
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&dinfo->pci.cfg);
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pci_print_verbose(&dinfo->pci);
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dinfo->pci.cfg.dev = device_add_child(cbdev, NULL, -1);
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if (!dinfo->pci.cfg.dev) {
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DEVPRINTF((cbdev, "Cannot add child!\n"));
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pci_freecfg(&dinfo->pci);
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continue;
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}
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resource_list_init(&dinfo->pci.resources);
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device_set_ivars(dinfo->pci.cfg.dev, &dinfo->pci);
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cardbus_do_cis(cbdev, dinfo->pci.cfg.dev);
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if (device_probe_and_attach(dinfo->pci.cfg.dev) != 0) {
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/* when fail, release all resources */
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cardbus_release_all_resources(cbdev, dinfo);
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} else
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cardattached++;
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}
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}
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if (cardattached > 0)
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return 0;
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POWER_DISABLE_SOCKET(brdev, cbdev);
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return ENOENT;
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}
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static int
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cardbus_detach_card(device_t cbdev, int flags)
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{
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int numdevs;
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device_t *devlist;
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int tmp;
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int err = 0;
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struct cardbus_devinfo *dinfo;
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int status;
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device_get_children(cbdev, &devlist, &numdevs);
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if (numdevs == 0) {
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if (bootverbose)
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DEVPRINTF((cbdev, "detach_card: no card to detach!\n"));
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POWER_DISABLE_SOCKET(device_get_parent(cbdev), cbdev);
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free(devlist, M_TEMP);
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return ENOENT;
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}
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for (tmp = 0; tmp < numdevs; tmp++) {
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dinfo = device_get_ivars(devlist[tmp]);
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status = device_get_state(devlist[tmp]);
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if (status == DS_ATTACHED || status == DS_BUSY) {
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if (device_detach(dinfo->pci.cfg.dev) == 0 ||
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flags & DETACH_FORCE) {
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cardbus_release_all_resources(cbdev, dinfo);
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device_delete_child(cbdev, devlist[tmp]);
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} else {
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err++;
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}
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pci_freecfg(&dinfo->pci);
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} else {
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cardbus_release_all_resources(cbdev, dinfo);
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device_delete_child(cbdev, devlist[tmp]);
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pci_freecfg(&dinfo->pci);
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}
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}
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if (err == 0)
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POWER_DISABLE_SOCKET(device_get_parent(cbdev), cbdev);
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free(devlist, M_TEMP);
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return err;
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}
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static void
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cardbus_driver_added(device_t cbdev, driver_t *driver)
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{
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int numdevs;
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device_t *devlist;
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int tmp, cardattached;
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struct cardbus_devinfo *dinfo;
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device_get_children(cbdev, &devlist, &numdevs);
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cardattached = 0;
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for (tmp = 0; tmp < numdevs; tmp++) {
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if (device_get_state(devlist[tmp]) != DS_NOTPRESENT)
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cardattached++;
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}
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if (cardattached == 0) {
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free(devlist, M_TEMP);
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CARD_REPROBE_CARD(device_get_parent(cbdev), cbdev);
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return;
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}
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DEVICE_IDENTIFY(driver, cbdev);
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for (tmp = 0; tmp < numdevs; tmp++) {
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if (device_get_state(devlist[tmp]) == DS_NOTPRESENT) {
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dinfo = device_get_ivars(devlist[tmp]);
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cardbus_release_all_resources(cbdev, dinfo);
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resource_list_init(&dinfo->pci.resources);
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cardbus_do_cis(cbdev, dinfo->pci.cfg.dev);
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if (device_probe_and_attach(dinfo->pci.cfg.dev) != 0)
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cardbus_release_all_resources(cbdev, dinfo);
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else
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cardattached++;
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}
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}
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free(devlist, M_TEMP);
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}
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/************************************************************************/
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/* Resources */
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/************************************************************************/
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static void
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cardbus_release_all_resources(device_t cbdev, struct cardbus_devinfo *dinfo)
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{
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struct resource_list_entry *rle;
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/* Free all allocated resources */
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SLIST_FOREACH(rle, &dinfo->pci.resources, link) {
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if (rle->res) {
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if (rle->res->r_dev != cbdev)
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device_printf(cbdev, "release_all_resource: "
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"Resource still owned by child, oops. "
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"(type=%d, rid=%d, addr=%lx)\n",
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rle->type, rle->rid,
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rman_get_start(rle->res));
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BUS_RELEASE_RESOURCE(device_get_parent(cbdev),
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rle->res->r_dev,
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rle->type, rle->rid,
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rle->res);
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rle->res = NULL;
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/*
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* zero out config so the card won't acknowledge
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* access to the space anymore
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*/
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pci_write_config(dinfo->pci.cfg.dev, rle->rid, 0, 4);
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}
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}
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resource_list_free(&dinfo->pci.resources);
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}
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static device_method_t cardbus_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, cardbus_probe),
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DEVMETHOD(device_attach, cardbus_attach),
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DEVMETHOD(device_detach, cardbus_detach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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DEVMETHOD(device_suspend, cardbus_suspend),
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DEVMETHOD(device_resume, cardbus_resume),
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/* Bus interface */
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DEVMETHOD(bus_print_child, pci_print_child),
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DEVMETHOD(bus_probe_nomatch, pci_probe_nomatch),
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DEVMETHOD(bus_read_ivar, pci_read_ivar),
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DEVMETHOD(bus_write_ivar, pci_write_ivar),
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DEVMETHOD(bus_driver_added, cardbus_driver_added),
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DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
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DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
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DEVMETHOD(bus_get_resource_list,pci_get_resource_list),
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DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource),
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DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
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DEVMETHOD(bus_delete_resource, pci_delete_resource),
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DEVMETHOD(bus_alloc_resource, pci_alloc_resource),
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DEVMETHOD(bus_release_resource, bus_generic_rl_release_resource),
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DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
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DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
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/* Card Interface */
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DEVMETHOD(card_attach_card, cardbus_attach_card),
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DEVMETHOD(card_detach_card, cardbus_detach_card),
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DEVMETHOD(card_cis_read, cardbus_cis_read),
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DEVMETHOD(card_cis_free, cardbus_cis_free),
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/* Cardbus/PCI interface */
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DEVMETHOD(pci_read_config, pci_read_config_method),
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DEVMETHOD(pci_write_config, pci_write_config_method),
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DEVMETHOD(pci_enable_busmaster, pci_enable_busmaster_method),
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DEVMETHOD(pci_disable_busmaster, pci_disable_busmaster_method),
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DEVMETHOD(pci_enable_io, pci_enable_io_method),
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DEVMETHOD(pci_disable_io, pci_disable_io_method),
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DEVMETHOD(pci_get_powerstate, pci_get_powerstate_method),
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DEVMETHOD(pci_set_powerstate, pci_set_powerstate_method),
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{0,0}
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};
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static driver_t cardbus_driver = {
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"cardbus",
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cardbus_methods,
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0 /* no softc */
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};
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static devclass_t cardbus_devclass;
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DRIVER_MODULE(cardbus, pccbb, cardbus_driver, cardbus_devclass, 0, 0);
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/*
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MODULE_DEPEND(cardbus, pccbb, 1, 1, 1);
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*/
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