afd9750bfd
o For TI PCI-1130, you need to set bit 5 of register 91 if you want ANY pci interrupts. Then set bits 3 and/or 4 as appropriate. This will fix those people with 1030, 1130 and 1131 in their machines trying to do PCI interrupts. o Fix case where we were trying to automatically fail back to ISA interrupt routing. We were dereferencing a NULL pointer. This was true of ANY chipset. o The bus_setup_intr method needs to be pcic_setup_intr so that "FAST" interrupts fail on PCI case (modems act flakey if we don't force them to fall back to normal interrupts). Also needed so that the proper ISA IRQ can be set in the ExCA register. This fixes the people whose ISA routing was failing[*]. o When we find a generic yenta/pccard bridge, go ahead and print its vendor ID in boot verbose. Machine with theses symptoms and a serial console by: jedgar [*] Looks like my pc98 machine has some interrupt source on IRQ 15 that gave about 30 interrupts per second, which masked this problem on my PC-9821Nr15.
910 lines
28 KiB
C
910 lines
28 KiB
C
/*
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* Copyright (c) 2001 M. Warner Losh. All Rights Reserved.
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* Copyright (c) 1997 Ted Faber All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice immediately at the beginning of the file, without modification,
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* this list of conditions, and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Absolutely no warranty of function or purpose is made by the author
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* Ted Faber.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/sysctl.h>
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#include <sys/systm.h>
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#if __FreeBSD_version < 500000
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#include <pci/pcireg.h>
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#include <pci/pcivar.h>
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#else
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#endif
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#include <pccard/pcic_pci.h>
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#include <pccard/i82365.h>
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#include <pccard/cardinfo.h>
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#include <pccard/slot.h>
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#include <pccard/pcicvar.h>
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#include <dev/pccard/pccardvar.h>
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#include "card_if.h"
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#define PRVERB(x) do { \
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if (bootverbose) { device_printf x; } \
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} while (0)
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static int pcic_pci_get_memory(device_t dev);
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SYSCTL_DECL(_hw_pcic);
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static int pcic_ignore_function_1 = 0;
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TUNABLE_INT("hw.pcic.ignore_function_1", &pcic_ignore_function_1);
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SYSCTL_INT(_hw_pcic, OID_AUTO, ignore_function_1, CTLFLAG_RD,
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&pcic_ignore_function_1, 0,
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"When set, driver ignores pci function 1 of the bridge");
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/*
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* The following should be a hint, so we can do it on a per device
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* instance, but this is convenient. Do not set this unless pci
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* routing doesn't work. It is purposely vague and undocumented
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* at the moment.
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*/
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static int pcic_intr_path = (int)pcic_iw_pci;
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TUNABLE_INT("hw.pcic.intr_path", &pcic_intr_path);
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SYSCTL_INT(_hw_pcic, OID_AUTO, intr_path, CTLFLAG_RD, &pcic_intr_path, 0,
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"Which path to send the interrupts over.");
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static int pcic_init_routing = 0;
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TUNABLE_INT("hw.pcic.init_routing", &pcic_init_routing);
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SYSCTL_INT(_hw_pcic, OID_AUTO, init_routing, CTLFLAG_RD,
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&pcic_init_routing, 0,
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"Force the interrupt routing to be initialized on those bridges where\n\
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doing so will cause probelms. Often when no interrupts appear to be routed\n\
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setting this tunable to 1 will resolve the problem. PCI Cards will almost\n\
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always require this, while builtin bridges need it less often");
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typedef void (*init_t)(device_t);
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static void pcic_pci_cardbus_init(device_t);
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static void pcic_pci_oz67xx_init(device_t);
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static void pcic_pci_oz68xx_init(device_t);
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static void pcic_pci_pd67xx_init(device_t);
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static void pcic_pci_pd683x_init(device_t);
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static void pcic_pci_ricoh_init(device_t);
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static void pcic_pci_ti_init(device_t);
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static void pcic_pci_topic_init(device_t);
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struct pcic_pci_table
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{
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u_int32_t devid;
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const char *descr;
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int type;
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u_int32_t flags;
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init_t init;
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} pcic_pci_devs[] = {
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{ PCI_DEVICE_ID_PCIC_CLPD6729,
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"Cirrus Logic PD6729/6730 PC-Card Controller",
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PCIC_PD672X, PCIC_PD_POWER, pcic_pci_pd67xx_init },
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{ PCI_DEVICE_ID_PCIC_CLPD6832,
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"Cirrus Logic PD6832 PCI-CardBus Bridge",
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PCIC_PD672X, PCIC_PD_POWER, pcic_pci_pd683x_init },
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{ PCI_DEVICE_ID_PCIC_CLPD6833,
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"Cirrus Logic PD6833 PCI-CardBus Bridge",
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PCIC_PD672X, PCIC_PD_POWER, pcic_pci_pd683x_init },
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{ PCI_DEVICE_ID_PCIC_OZ6729,
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"O2micro OZ6729 PC-Card Bridge",
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PCIC_I82365, PCIC_AB_POWER, pcic_pci_oz67xx_init },
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{ PCI_DEVICE_ID_PCIC_OZ6730,
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"O2micro OZ6730 PC-Card Bridge",
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PCIC_I82365, PCIC_AB_POWER, pcic_pci_oz67xx_init },
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{ PCI_DEVICE_ID_PCIC_OZ6832,
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"O2micro 6832/6833 PCI-Cardbus Bridge",
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PCIC_I82365, PCIC_AB_POWER, pcic_pci_oz68xx_init },
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{ PCI_DEVICE_ID_PCIC_OZ6860,
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"O2micro 6860/6836 PCI-Cardbus Bridge",
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PCIC_I82365, PCIC_AB_POWER, pcic_pci_oz68xx_init },
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{ PCI_DEVICE_ID_PCIC_OZ6872,
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"O2micro 6812/6872 PCI-Cardbus Bridge",
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PCIC_I82365, PCIC_AB_POWER, pcic_pci_oz68xx_init },
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{ PCI_DEVICE_ID_RICOH_RL5C465,
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"Ricoh RL5C465 PCI-CardBus Bridge",
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PCIC_RF5C296, PCIC_RICOH_POWER, pcic_pci_ricoh_init },
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{ PCI_DEVICE_ID_RICOH_RL5C475,
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"Ricoh RL5C475 PCI-CardBus Bridge",
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PCIC_RF5C296, PCIC_RICOH_POWER, pcic_pci_ricoh_init },
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{ PCI_DEVICE_ID_RICOH_RL5C476,
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"Ricoh RL5C476 PCI-CardBus Bridge",
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PCIC_RF5C296, PCIC_RICOH_POWER, pcic_pci_ricoh_init },
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{ PCI_DEVICE_ID_RICOH_RL5C477,
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"Ricoh RL5C477 PCI-CardBus Bridge",
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PCIC_RF5C296, PCIC_RICOH_POWER, pcic_pci_ricoh_init },
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{ PCI_DEVICE_ID_RICOH_RL5C478,
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"Ricoh RL5C478 PCI-CardBus Bridge",
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PCIC_RF5C296, PCIC_RICOH_POWER, pcic_pci_ricoh_init },
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{ PCI_DEVICE_ID_PCIC_TI1031,
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"TI PCI-1031 PCI-PCMCIA Bridge",
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PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init },
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{ PCI_DEVICE_ID_PCIC_TI1130,
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"TI PCI-1130 PCI-CardBus Bridge",
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PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init },
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{ PCI_DEVICE_ID_PCIC_TI1131,
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"TI PCI-1131 PCI-CardBus Bridge",
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PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init },
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{ PCI_DEVICE_ID_PCIC_TI1211,
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"TI PCI-1211 PCI-CardBus Bridge",
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PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init },
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{ PCI_DEVICE_ID_PCIC_TI1220,
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"TI PCI-1220 PCI-CardBus Bridge",
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PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init },
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{ PCI_DEVICE_ID_PCIC_TI1221,
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"TI PCI-1221 PCI-CardBus Bridge",
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PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init },
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{ PCI_DEVICE_ID_PCIC_TI1225,
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"TI PCI-1225 PCI-CardBus Bridge",
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PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init },
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{ PCI_DEVICE_ID_PCIC_TI1250,
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"TI PCI-1250 PCI-CardBus Bridge",
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PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init },
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{ PCI_DEVICE_ID_PCIC_TI1251,
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"TI PCI-1251 PCI-CardBus Bridge",
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PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init },
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{ PCI_DEVICE_ID_PCIC_TI1251B,
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"TI PCI-1251B PCI-CardBus Bridge",
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PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init },
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{ PCI_DEVICE_ID_PCIC_TI1410,
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"TI PCI-1410 PCI-CardBus Bridge",
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PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init },
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{ PCI_DEVICE_ID_PCIC_TI1420,
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"TI PCI-1420 PCI-CardBus Bridge",
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PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init },
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{ PCI_DEVICE_ID_PCIC_TI1450,
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"TI PCI-1450 PCI-CardBus Bridge",
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PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init },
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{ PCI_DEVICE_ID_PCIC_TI1451,
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"TI PCI-1451 PCI-CardBus Bridge",
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PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init },
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{ PCI_DEVICE_ID_PCIC_TI4451,
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"TI PCI-4451 PCI-CardBus Bridge",
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PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init },
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{ PCI_DEVICE_ID_TOSHIBA_TOPIC95,
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"Toshiba ToPIC95 PCI-CardBus Bridge",
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PCIC_I82365, PCIC_AB_POWER, pcic_pci_topic_init },
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{ PCI_DEVICE_ID_TOSHIBA_TOPIC97,
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"Toshiba ToPIC97 PCI-CardBus Bridge",
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PCIC_I82365, PCIC_AB_POWER, pcic_pci_topic_init },
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{ PCI_DEVICE_ID_TOSHIBA_TOPIC100,
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"Toshiba ToPIC100 PCI-CardBus Bridge",
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PCIC_I82365, PCIC_AB_POWER, pcic_pci_topic_init },
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{ 0, NULL, 0, 0, NULL }
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};
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/*
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* Read a register from the PCIC.
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*/
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static unsigned char
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pcic_pci_getb2(struct pcic_slot *sp, int reg)
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{
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return (bus_space_read_1(sp->bst, sp->bsh, sp->offset + reg));
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}
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/*
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* Write a register on the PCIC
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*/
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static void
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pcic_pci_putb2(struct pcic_slot *sp, int reg, unsigned char val)
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{
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bus_space_write_1(sp->bst, sp->bsh, sp->offset + reg, val);
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}
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/*
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* lookup inside the table
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*/
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static struct pcic_pci_table *
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pcic_pci_lookup(u_int32_t devid, struct pcic_pci_table *tbl)
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{
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while (tbl->devid) {
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if (tbl->devid == devid)
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return (tbl);
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tbl++;
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}
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return (NULL);
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}
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static void
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pcic_pci_oz67xx_init(device_t dev)
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{
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/*
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* This is almost certainly incomplete.
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*/
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device_printf(dev, "Warning: O2micro OZ67xx chips may not work\n");
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pcic_pci_cardbus_init(dev);
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}
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static void
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pcic_pci_oz68xx_init(device_t dev)
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{
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/*
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* This is almost certainly incomplete.
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*/
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device_printf(dev, "Warning: O2micro OZ68xx chips may not work\n");
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pcic_pci_cardbus_init(dev);
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}
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static void
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pcic_pci_pd67xx_init(device_t dev)
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{
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/*
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* This is incomplete.
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*/
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device_printf(dev, "Warning: CL-PD67xx chips may not work\n");
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}
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/*
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* Set up the CL-PD6832
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*/
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static void
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pcic_pci_pd683x_init(device_t dev)
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{
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struct pcic_softc *sc = device_get_softc(dev);
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u_int32_t device_id = pci_get_devid(dev);
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u_long bcr;
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u_long cm1;
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/*
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* CLPD6832 management interrupt enable bit is bit 11 (MGMT_IRQ_ENA)
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* in bridge control register(offset 0x3d).
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* When this bit is turned on, card status change interrupt sets
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* on ISA IRQ interrupt.
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* Bit 7 controls the function interrupts and appears to be stanard.
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*
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* The CLPD6833 does things differently. It has bit 7, but not bit
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* 11. Bit 11's functionality appears to be in the "Configuration
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* Miscellaneous 1" register bit 1.
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*/
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bcr = pci_read_config(dev, CB_PCI_BRIDGE_CTRL, 2);
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if (device_id == PCI_DEVICE_ID_PCIC_CLPD6832) {
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if (sc->csc_route == pcic_iw_pci)
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bcr &= ~CLPD6832_BCR_MGMT_IRQ_ENA;
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else
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bcr |= CLPD6832_BCR_MGMT_IRQ_ENA;
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}
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if (sc->func_route == pcic_iw_pci)
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bcr &= ~CB_BCR_INT_EXCA;
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else
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bcr |= CB_BCR_INT_EXCA;
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pci_write_config(dev, CB_PCI_BRIDGE_CTRL, bcr, 2);
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if (device_id == PCI_DEVICE_ID_PCIC_CLPD6833) {
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cm1 = pci_read_config(dev, CLPD6833_CFG_MISC_1, 4);
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if (sc->csc_route == pcic_iw_pci)
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cm1 &= ~CLPD6833_CM1_MGMT_EXCA_ENA;
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else
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cm1 |= CLPD6833_CM1_MGMT_EXCA_ENA;
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pci_write_config(dev, CLPD6833_CFG_MISC_1, cm1, 4);
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}
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pcic_pci_cardbus_init(dev);
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}
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static void
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pcic_pci_ricoh_init(device_t dev)
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{
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u_int16_t brgcntl;
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u_int32_t device_id = pci_get_devid(dev);
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switch (device_id) {
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case PCI_DEVICE_ID_RICOH_RL5C465:
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case PCI_DEVICE_ID_RICOH_RL5C466:
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/*
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* Ricoh chips have a legacy bridge enable different than most
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* Code cribbed from NEWBUS's bridge code since I can't find a
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* datasheet for them that has register definitions.
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*/
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brgcntl = pci_read_config(dev, CB_PCI_BRIDGE_CTRL, 2);
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brgcntl &= ~(CB_BCR_RL_3E2_EN | CB_BCR_RL_3E0_EN);
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pci_write_config(dev, CB_PCI_BRIDGE_CTRL, brgcntl, 2);
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break;
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}
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pcic_pci_cardbus_init(dev);
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}
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/*
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* TI PCI-CardBus Host Adapter specific function code.
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* This function is separated from pcic_pci_attach().
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* Takeshi Shibagaki(shiba@jp.freebsd.org).
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*/
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static void
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pcic_pci_ti_init(device_t dev)
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{
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u_int32_t syscntl, diagctl, devcntl, cardcntl;
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u_int32_t device_id = pci_get_devid(dev);
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struct pcic_softc *sc = device_get_softc(dev);
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int ti113x = (device_id == PCI_DEVICE_ID_PCIC_TI1031) ||
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(device_id == PCI_DEVICE_ID_PCIC_TI1130) ||
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(device_id == PCI_DEVICE_ID_PCIC_TI1131);
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syscntl = pci_read_config(dev, TI113X_PCI_SYSTEM_CONTROL, 4);
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devcntl = pci_read_config(dev, TI113X_PCI_DEVICE_CONTROL, 1);
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cardcntl = pci_read_config(dev, TI113X_PCI_CARD_CONTROL, 1);
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if (ti113x) {
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device_printf(dev, "TI113X PCI Config Reg: ");
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/*
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* The TI-1130 (and 1030 and 1131) have a different
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* interrupt routing control than the newer cards.
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* assume we're not routing PCI, but enable as necessary
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* when we find someone uses PCI interrupts. In order to
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* get any pci interrupts, PCI_IRQ_ENA (bit 5) must
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* be set. If either PCI_IREQ (bit 4) or PCI_CSC (bit 3)
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* are set, then set bit 5 at the same time, since setting
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* them enables the PCI interrupt routing.
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*/
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cardcntl &= ~TI113X_CARDCNTL_PCI_IRQ_ENA;
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if (sc->func_route == pcic_iw_pci)
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cardcntl |= TI113X_CARDCNTL_PCI_IRQ_ENA |
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TI113X_CARDCNTL_PCI_IREQ;
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else
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cardcntl &= ~TI113X_CARDCNTL_PCI_IREQ;
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if (sc->csc_route == pcic_iw_pci)
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cardcntl |= TI113X_CARDCNTL_PCI_IRQ_ENA |
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TI113X_CARDCNTL_PCI_CSC;
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else
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cardcntl &= ~TI113X_CARDCNTL_PCI_CSC;
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pci_write_config(dev, TI113X_PCI_CARD_CONTROL, cardcntl, 1);
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cardcntl = pci_read_config(dev, TI113X_PCI_CARD_CONTROL, 1);
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if (syscntl & TI113X_SYSCNTL_CLKRUN_ENA) {
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if (syscntl & TI113X_SYSCNTL_CLKRUN_SEL)
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printf("[clkrun irq 12]");
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else
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printf("[clkrun irq 10]");
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}
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} else {
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device_printf(dev, "TI12XX PCI Config Reg: ");
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/*
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* Turn on async CSC interrupts. This appears to
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* be the default, but the old, pre pci-aware, code
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* did this and it appears PAO does as well.
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*/
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diagctl = pci_read_config(dev, TI12XX_PCI_DIAGNOSTIC, 1);
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diagctl |= TI12XX_DIAG_CSC_INTR;
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pci_write_config(dev, TI12XX_PCI_DIAGNOSTIC, diagctl, 1);
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/*
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* Turn off Zoom Video. Some cards have this enabled,
|
|
* some do not but it causes problems when enabled. This
|
|
* register doesn't exist on the 1130 (and likely the 1131,
|
|
* but without a datasheet it is impossible to know).
|
|
* Some 12xx chips may not have it, but setting it is
|
|
* believed to be harmless.
|
|
*/
|
|
pci_write_config(dev, TI12XX_PCI_MULTIMEDIA_CONTROL, 0, 4);
|
|
}
|
|
/*
|
|
* Default card control register setting is PCI interrupt.
|
|
* The method of this code switches PCI INT and ISA IRQ by bit
|
|
* 7 of Bridge Control Register(Offset:0x3e,0x13e).
|
|
* Takeshi Shibagaki(shiba@jp.freebsd.org)
|
|
*/
|
|
if (sc->func_route == pcic_iw_pci) {
|
|
if (pcic_init_routing) {
|
|
devcntl &= ~TI113X_DEVCNTL_INTR_MASK;
|
|
pci_write_config(dev, TI113X_PCI_DEVICE_CONTROL,
|
|
devcntl, 1);
|
|
devcntl = pci_read_config(dev,
|
|
TI113X_PCI_DEVICE_CONTROL, 1);
|
|
syscntl |= TI113X_SYSCNTL_INTRTIE;
|
|
}
|
|
syscntl &= ~TI113X_SYSCNTL_SMIENB;
|
|
pci_write_config(dev, TI113X_PCI_SYSTEM_CONTROL, syscntl, 1);
|
|
}
|
|
if (cardcntl & TI113X_CARDCNTL_RING_ENA)
|
|
printf("[ring enable]");
|
|
if (cardcntl & TI113X_CARDCNTL_SPKR_ENA)
|
|
printf("[speaker enable]");
|
|
if (syscntl & TI113X_SYSCNTL_PWRSAVINGS)
|
|
printf("[pwr save]");
|
|
switch(devcntl & TI113X_DEVCNTL_INTR_MASK){
|
|
case TI113X_DEVCNTL_INTR_ISA :
|
|
printf("[CSC parallel isa irq]");
|
|
break;
|
|
case TI113X_DEVCNTL_INTR_SERIAL :
|
|
printf("[CSC serial isa irq]");
|
|
break;
|
|
case TI113X_DEVCNTL_INTR_NONE :
|
|
printf("[pci only]");
|
|
break;
|
|
case TI12XX_DEVCNTL_INTR_ALLSERIAL :
|
|
printf("[FUNC pci int + CSC serial isa irq]");
|
|
break;
|
|
}
|
|
printf("\n");
|
|
pcic_pci_cardbus_init(dev);
|
|
}
|
|
|
|
static void
|
|
pcic_pci_topic_init(device_t dev)
|
|
{
|
|
/*
|
|
* This is almost certainly incomplete.
|
|
*/
|
|
device_printf(dev, "Warning: Toshiba ToPIC chips may not work\n");
|
|
pcic_pci_cardbus_init(dev);
|
|
}
|
|
|
|
static void
|
|
pcic_pci_cardbus_init(device_t dev)
|
|
{
|
|
u_int16_t brgcntl;
|
|
int unit;
|
|
struct pcic_softc *sc = device_get_softc(dev);
|
|
|
|
unit = device_get_unit(dev);
|
|
|
|
if (sc->func_route == pcic_iw_pci) {
|
|
/* Use INTA for routing function interrupts via pci bus */
|
|
brgcntl = pci_read_config(dev, CB_PCI_BRIDGE_CTRL, 2);
|
|
brgcntl &= ~CB_BCR_INT_EXCA;
|
|
brgcntl |= CB_BCR_WRITE_POST_EN | CB_BCR_MASTER_ABORT;
|
|
pci_write_config(dev, CB_PCI_BRIDGE_CTRL, brgcntl, 2);
|
|
} else {
|
|
/* Output ISA IRQ indicated in ExCA register(0x03). */
|
|
brgcntl = pci_read_config(dev, CB_PCI_BRIDGE_CTRL, 2);
|
|
brgcntl |= CB_BCR_INT_EXCA;
|
|
pci_write_config(dev, CB_PCI_BRIDGE_CTRL, brgcntl, 2);
|
|
}
|
|
|
|
/* Turn off legacy address */
|
|
pci_write_config(dev, CB_PCI_LEGACY16_IOADDR, 0, 2);
|
|
|
|
/*
|
|
* Write zeros into the remaining BARs. This seems to turn off
|
|
* the pci configuration of these things and make the cardbus
|
|
* bridge use the values for memory programmed into the pcic
|
|
* registers.
|
|
*/
|
|
pci_write_config(dev, CB_PCI_MEMBASE0, 0, 4);
|
|
pci_write_config(dev, CB_PCI_MEMLIMIT0, 0, 4);
|
|
pci_write_config(dev, CB_PCI_MEMBASE1, 0, 4);
|
|
pci_write_config(dev, CB_PCI_MEMLIMIT1, 0, 4);
|
|
pci_write_config(dev, CB_PCI_IOBASE0, 0, 4);
|
|
pci_write_config(dev, CB_PCI_IOLIMIT0, 0, 4);
|
|
pci_write_config(dev, CB_PCI_IOBASE1, 0, 4);
|
|
pci_write_config(dev, CB_PCI_IOLIMIT1, 0, 4);
|
|
|
|
return;
|
|
}
|
|
|
|
static const char *
|
|
pcic_pci_cardtype(u_int32_t stat)
|
|
{
|
|
if (stat & CB_SS_NOTCARD)
|
|
return ("Cardtype unrecognized by bridge");
|
|
if ((stat & (CB_SS_16BIT | CB_SS_CB)) == (CB_SS_16BIT | CB_SS_CB))
|
|
return ("16-bit and 32-bit (can't happen)");
|
|
if (stat & CB_SS_16BIT)
|
|
return ("16-bit pccard");
|
|
if (stat & CB_SS_CB)
|
|
return ("32-bit cardbus");
|
|
return ("none (can't happen)");
|
|
}
|
|
|
|
/*
|
|
* Card insertion and removal code. The insertion events need to be
|
|
* debounced so that the noisy insertion/removal events don't result
|
|
* in the hardware being initialized many times, only to be torn down
|
|
* as well. This may also cause races with pccardd. Instead, we wait
|
|
* for the insertion signal to be stable for 0.5 seconds before we declare
|
|
* it to be a real insertion event. Removal is done right away.
|
|
*
|
|
* Note: We only handle the card detect change events. We don't handle
|
|
* power events and status change events.
|
|
*/
|
|
static void
|
|
pcic_cd_insert(void *arg)
|
|
{
|
|
struct pcic_softc *sc = (struct pcic_softc *) arg;
|
|
struct pcic_slot *sp = &sc->slots[0];
|
|
u_int32_t stat;
|
|
|
|
sc->cd_pending = 0;
|
|
stat = bus_space_read_4(sp->bst, sp->bsh, CB_SOCKET_STATE);
|
|
|
|
/* Just return if the interrupt handler missed a remove transition. */
|
|
if ((stat & CB_SS_CD) != 0)
|
|
return;
|
|
sc->cd_present = 1;
|
|
if ((stat & CB_SS_16BIT) == 0)
|
|
device_printf(sp->sc->dev, "Card type %s is unsupported\n",
|
|
pcic_pci_cardtype(stat));
|
|
else
|
|
pccard_event(sp->slt, card_inserted);
|
|
}
|
|
|
|
static void
|
|
pcic_pci_intr(void *arg)
|
|
{
|
|
struct pcic_softc *sc = (struct pcic_softc *) arg;
|
|
struct pcic_slot *sp = &sc->slots[0];
|
|
u_int32_t event;
|
|
u_int32_t stat;
|
|
int present;
|
|
|
|
event = bus_space_read_4(sp->bst, sp->bsh, CB_SOCKET_EVENT);
|
|
if (event != 0) {
|
|
stat = bus_space_read_4(sp->bst, sp->bsh, CB_SOCKET_STATE);
|
|
if (bootverbose)
|
|
device_printf(sc->dev, "Event mask 0x%x stat 0x%x\n",
|
|
event, stat);
|
|
|
|
present = (stat & CB_SS_CD) == 0;
|
|
if (present != sc->cd_present) {
|
|
if (sc->cd_pending) {
|
|
untimeout(pcic_cd_insert, arg, sc->cd_ch);
|
|
sc->cd_pending = 0;
|
|
}
|
|
/* Delay insert events to debounce noisy signals. */
|
|
if (present) {
|
|
sc->cd_ch = timeout(pcic_cd_insert, arg, hz/2);
|
|
sc->cd_pending = 1;
|
|
} else {
|
|
sc->cd_present = 0;
|
|
sp->intr = NULL;
|
|
pccard_event(sp->slt, card_removed);
|
|
}
|
|
}
|
|
/* Ack the interrupt */
|
|
bus_space_write_4(sp->bst, sp->bsh, 0, event);
|
|
}
|
|
|
|
/*
|
|
* Some TI chips also require us to read the old ExCA register for
|
|
* card status change when we route CSC via PCI! So, we go ahead
|
|
* and read it to clear the bits. Maybe we should check the status
|
|
* ala the ISA interrupt handler, but those changes should be caught
|
|
* in the CD change.
|
|
*/
|
|
sp->getb(sp, PCIC_STAT_CHG);
|
|
}
|
|
|
|
/*
|
|
* Return the ID string for the controller if the vendor/product id
|
|
* matches, NULL otherwise.
|
|
*/
|
|
static int
|
|
pcic_pci_probe(device_t dev)
|
|
{
|
|
u_int8_t subclass;
|
|
u_int8_t progif;
|
|
const char *desc;
|
|
u_int32_t device_id;
|
|
struct pcic_pci_table *itm;
|
|
struct resource *res;
|
|
int rid;
|
|
|
|
device_id = pci_get_devid(dev);
|
|
desc = NULL;
|
|
itm = pcic_pci_lookup(device_id, &pcic_pci_devs[0]);
|
|
if (pcic_ignore_function_1 && pci_get_function(dev) == 1) {
|
|
if (itm != NULL)
|
|
PRVERB((dev, "Ignoring function 1\n"));
|
|
return (ENXIO);
|
|
}
|
|
if (itm != NULL)
|
|
desc = itm->descr;
|
|
if (desc == NULL && pci_get_class(dev) == PCIC_BRIDGE) {
|
|
subclass = pci_get_subclass(dev);
|
|
progif = pci_get_progif(dev);
|
|
if (subclass == PCIS_BRIDGE_PCMCIA && progif == 0)
|
|
desc = "Generic PCI-PCMCIA Bridge";
|
|
if (subclass == PCIS_BRIDGE_CARDBUS && progif == 0)
|
|
desc = "YENTA PCI-CARDBUS Bridge";
|
|
if (bootverbose && desc)
|
|
printf("Found unknown %s devid 0x%x\n", desc, device_id);
|
|
}
|
|
if (desc == NULL)
|
|
return (ENXIO);
|
|
device_set_desc(dev, desc);
|
|
|
|
/*
|
|
* Take us out of power down mode, if necessary. It also
|
|
* appears that even reading the power register is enough on
|
|
* some systems to cause correct behavior.
|
|
*/
|
|
if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
|
|
/* Reset the power state. */
|
|
device_printf(dev, "chip is in D%d power mode "
|
|
"-- setting to D0\n", pci_get_powerstate(dev));
|
|
pci_set_powerstate(dev, PCI_POWERSTATE_D0);
|
|
}
|
|
|
|
/*
|
|
* Allocated/deallocate interrupt. This forces the PCI BIOS or
|
|
* other MD method to route the interrupts to this card.
|
|
* This so we get the interrupt number in the probe message.
|
|
* We only need to route interrupts when we're doing pci
|
|
* parallel interrupt routing.
|
|
*/
|
|
if (pcic_intr_path == pcic_iw_pci) {
|
|
rid = 0;
|
|
res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
|
|
RF_ACTIVE);
|
|
if (res)
|
|
bus_release_resource(dev, SYS_RES_IRQ, rid, res);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
pcic_pci_shutdown(device_t dev)
|
|
{
|
|
struct pcic_softc *sc;
|
|
struct pcic_slot *sp;
|
|
|
|
sc = (struct pcic_softc *) device_get_softc(dev);
|
|
sp = &sc->slots[0];
|
|
|
|
/*
|
|
* Turn off the power to the slot in an attempt to
|
|
* keep the system from hanging on reboot. We also turn off
|
|
* card interrupts in an attempt to control interrupt storms.
|
|
* on some (all?) this has the effect of also turning off
|
|
* card status change interrupts. A side effect of writing 0
|
|
* to INT_GEN is that the card is placed into "reset" mode
|
|
* where nothing happens until it is taken out of "reset"
|
|
* mode.
|
|
*/
|
|
sp->putb(sp, PCIC_INT_GEN, 0);
|
|
sp->putb(sp, PCIC_POWER, 0);
|
|
|
|
/*
|
|
* Writing to INT_GEN can cause an interrupt, so we blindly
|
|
* ack all possible interrupts here. Reading the stat change
|
|
* shouldn't be necessary, but some TI chipsets need it in the
|
|
* normal course of operations, so we do it here too. We can't
|
|
* lose any interrupts after this point, so go ahead and ack
|
|
* everything. The bits in INT_GEN clear upon reading them.
|
|
*/
|
|
bus_space_write_4(sp->bst, sp->bsh, 0, 0xffffffff);
|
|
sp->getb(sp, PCIC_STAT_CHG);
|
|
}
|
|
|
|
/*
|
|
* General PCI based card dispatch routine. Right now
|
|
* it only understands the Ricoh, CL-PD6832 and TI parts. It does
|
|
* try to do generic things with other parts.
|
|
*/
|
|
static int
|
|
pcic_pci_attach(device_t dev)
|
|
{
|
|
u_int32_t device_id = pci_get_devid(dev);
|
|
u_long command;
|
|
struct pcic_slot *sp;
|
|
struct pcic_softc *sc;
|
|
u_int32_t sockbase;
|
|
struct pcic_pci_table *itm;
|
|
int rid;
|
|
struct resource *r = NULL;
|
|
int error;
|
|
u_long irq = 0;
|
|
driver_intr_t *intr = NULL;
|
|
|
|
/*
|
|
* In sys/pci/pcireg.h, PCIR_COMMAND must be separated
|
|
* PCI_COMMAND_REG(0x04) and PCI_STATUS_REG(0x06).
|
|
* Takeshi Shibagaki(shiba@jp.freebsd.org).
|
|
*/
|
|
command = pci_read_config(dev, PCIR_COMMAND, 4);
|
|
command |= PCIM_CMD_PORTEN | PCIM_CMD_MEMEN;
|
|
pci_write_config(dev, PCIR_COMMAND, command, 4);
|
|
|
|
sc = (struct pcic_softc *) device_get_softc(dev);
|
|
sp = &sc->slots[0];
|
|
sp->sc = sc;
|
|
sockbase = pci_read_config(dev, 0x10, 4);
|
|
if (sockbase & 0x1) {
|
|
device_printf(dev, "I/O mapped device, might not work.\n");
|
|
sc->iorid = CB_PCI_SOCKET_BASE;
|
|
sc->iores = bus_alloc_resource(dev, SYS_RES_IOPORT,
|
|
&sc->iorid, 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
|
|
if (sc->iores == NULL)
|
|
return (ENOMEM);
|
|
sp->getb = pcic_getb_io;
|
|
sp->putb = pcic_putb_io;
|
|
sp->bst = rman_get_bustag(sc->iores);
|
|
sp->bsh = rman_get_bushandle(sc->iores);
|
|
sp->offset = pci_get_function(dev) * PCIC_SLOT_SIZE;
|
|
sp->controller = PCIC_PD672X;
|
|
sp->revision = 0;
|
|
sc->flags = PCIC_PD_POWER;
|
|
itm = pcic_pci_lookup(device_id, &pcic_pci_devs[0]);
|
|
} else {
|
|
sc->memrid = CB_PCI_SOCKET_BASE;
|
|
sc->memres = bus_alloc_resource(dev, SYS_RES_MEMORY,
|
|
&sc->memrid, 0, ~0, 1, RF_ACTIVE);
|
|
if (sc->memres == NULL && pcic_pci_get_memory(dev) != 0)
|
|
return (ENOMEM);
|
|
sp->getb = pcic_pci_getb2;
|
|
sp->putb = pcic_pci_putb2;
|
|
sp->offset = CB_EXCA_OFFSET;
|
|
sp->bst = rman_get_bustag(sc->memres);
|
|
sp->bsh = rman_get_bushandle(sc->memres);
|
|
itm = pcic_pci_lookup(device_id, &pcic_pci_devs[0]);
|
|
if (itm != NULL) {
|
|
sp->controller = itm->type;
|
|
sp->revision = 0;
|
|
sc->flags = itm->flags;
|
|
} else {
|
|
/* By default, assume we're a D step compatible */
|
|
sp->controller = PCIC_I82365SL_DF;
|
|
sp->revision = 0;
|
|
sc->flags = PCIC_DF_POWER;
|
|
}
|
|
}
|
|
sc->dev = dev;
|
|
sc->csc_route = pcic_intr_path;
|
|
sc->func_route = pcic_intr_path;
|
|
sp->slt = (struct slot *) 1;
|
|
|
|
if (sc->csc_route == pcic_iw_pci) {
|
|
rid = 0;
|
|
r = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
|
|
RF_ACTIVE | RF_SHAREABLE);
|
|
if (r == NULL) {
|
|
sc->csc_route = pcic_iw_isa;
|
|
sc->func_route = pcic_iw_isa;
|
|
device_printf(dev,
|
|
"No PCI interrupt routed, trying ISA.\n");
|
|
} else {
|
|
intr = pcic_pci_intr;
|
|
irq = rman_get_start(r);
|
|
}
|
|
}
|
|
if (sc->csc_route == pcic_iw_isa) {
|
|
rid = 0;
|
|
irq = pcic_override_irq;
|
|
if (irq != 0) {
|
|
r = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, irq,
|
|
irq, 1, RF_ACTIVE);
|
|
if (r == NULL) {
|
|
device_printf(dev,
|
|
"Can't route ISA CSC interrupt.\n");
|
|
pcic_dealloc(dev);
|
|
return (ENXIO);
|
|
}
|
|
intr = pcic_isa_intr;
|
|
} else {
|
|
sc->slot_poll = pcic_timeout;
|
|
sc->timeout_ch = timeout(sc->slot_poll, sc, hz/2);
|
|
device_printf(dev, "Polling mode\n");
|
|
intr = NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Initialize AFTER we figure out what kind of interrupt we're
|
|
* going to be using, if any.
|
|
*/
|
|
if (itm && itm->init)
|
|
itm->init(dev);
|
|
else
|
|
pcic_pci_cardbus_init(dev);
|
|
|
|
/*
|
|
* Now install the interrupt handler, if necessary.
|
|
*/
|
|
sc->irqrid = rid;
|
|
sc->irqres = r;
|
|
sc->irq = irq;
|
|
if (intr) {
|
|
error = bus_setup_intr(dev, r, INTR_TYPE_AV, intr, sc, &sc->ih);
|
|
if (error) {
|
|
pcic_dealloc(dev);
|
|
return (error);
|
|
}
|
|
}
|
|
|
|
return (pcic_attach(dev));
|
|
}
|
|
|
|
static int
|
|
pcic_pci_detach(device_t dev)
|
|
{
|
|
return (EBUSY); /* Can't detach this device */
|
|
}
|
|
|
|
/*
|
|
* The PCI bus should do this for us. However, it doesn't quite yet, so
|
|
* we cope by doing it ourselves. If it ever does, this code can go quietly
|
|
* into that good night.
|
|
*/
|
|
static int
|
|
pcic_pci_get_memory(device_t dev)
|
|
{
|
|
struct pcic_softc *sc;
|
|
u_int32_t sockbase;
|
|
|
|
sc = (struct pcic_softc *) device_get_softc(dev);
|
|
sockbase = pci_read_config(dev, sc->memrid, 4);
|
|
if (sockbase >= 0x100000 && sockbase < 0xfffffff0) {
|
|
device_printf(dev, "Could not map register memory\n");
|
|
return (ENOMEM);
|
|
}
|
|
pci_write_config(dev, sc->memrid, 0xffffffff, 4);
|
|
sockbase = pci_read_config(dev, sc->memrid, 4);
|
|
sockbase = (sockbase & 0xfffffff0) & -(sockbase & 0xfffffff0);
|
|
#define CARDBUS_SYS_RES_MEMORY_START 0x44000000
|
|
#define CARDBUS_SYS_RES_MEMORY_END 0xFFFFFFFF
|
|
sc->memres = bus_generic_alloc_resource(device_get_parent(dev),
|
|
dev, SYS_RES_MEMORY, &sc->memrid,
|
|
CARDBUS_SYS_RES_MEMORY_START, CARDBUS_SYS_RES_MEMORY_END,
|
|
sockbase, RF_ACTIVE | rman_make_alignment_flags(sockbase));
|
|
if (sc->memres == NULL) {
|
|
device_printf(dev, "Could not grab register memory\n");
|
|
return (ENOMEM);
|
|
}
|
|
sockbase = rman_get_start(sc->memres);
|
|
pci_write_config(dev, sc->memrid, sockbase, 4);
|
|
device_printf(dev, "PCI Memory allocated: 0x%08x\n", sockbase);
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t pcic_pci_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, pcic_pci_probe),
|
|
DEVMETHOD(device_attach, pcic_pci_attach),
|
|
DEVMETHOD(device_detach, pcic_pci_detach),
|
|
DEVMETHOD(device_suspend, bus_generic_suspend),
|
|
DEVMETHOD(device_resume, bus_generic_resume),
|
|
DEVMETHOD(device_shutdown, pcic_pci_shutdown),
|
|
|
|
/* Bus interface */
|
|
DEVMETHOD(bus_print_child, bus_generic_print_child),
|
|
DEVMETHOD(bus_alloc_resource, pcic_alloc_resource),
|
|
DEVMETHOD(bus_release_resource, bus_generic_release_resource),
|
|
DEVMETHOD(bus_activate_resource, pcic_activate_resource),
|
|
DEVMETHOD(bus_deactivate_resource, pcic_deactivate_resource),
|
|
DEVMETHOD(bus_setup_intr, pcic_setup_intr),
|
|
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
|
|
|
|
/* Card interface */
|
|
DEVMETHOD(card_set_res_flags, pcic_set_res_flags),
|
|
DEVMETHOD(card_get_res_flags, pcic_get_res_flags),
|
|
DEVMETHOD(card_set_memory_offset, pcic_set_memory_offset),
|
|
DEVMETHOD(card_get_memory_offset, pcic_get_memory_offset),
|
|
|
|
{0, 0}
|
|
};
|
|
|
|
static driver_t pcic_pci_driver = {
|
|
"pcic",
|
|
pcic_pci_methods,
|
|
sizeof(struct pcic_softc)
|
|
};
|
|
|
|
DRIVER_MODULE(pcic, pci, pcic_pci_driver, pcic_devclass, 0, 0);
|