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freebsd/sys/pccard/pcic_pci.c

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/*
* Copyright (c) 2001 M. Warner Losh. All Rights Reserved.
* Copyright (c) 1997 Ted Faber All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Absolutely no warranty of function or purpose is made by the author
* Ted Faber.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/sysctl.h>
#include <sys/systm.h>
#if __FreeBSD_version < 500000
#include <pci/pcireg.h>
#include <pci/pcivar.h>
#else
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#endif
#include <pccard/pcic_pci.h>
#include <pccard/i82365.h>
#include <pccard/cardinfo.h>
#include <pccard/slot.h>
#include <pccard/pcicvar.h>
#include <dev/pccard/pccardvar.h>
#include "card_if.h"
#define PRVERB(x) do { \
if (bootverbose) { device_printf x; } \
} while (0)
static int pcic_pci_get_memory(device_t dev);
SYSCTL_DECL(_hw_pcic);
static int pcic_ignore_function_1 = 0;
TUNABLE_INT("hw.pcic.ignore_function_1", &pcic_ignore_function_1);
SYSCTL_INT(_hw_pcic, OID_AUTO, ignore_function_1, CTLFLAG_RD,
&pcic_ignore_function_1, 0,
"When set, driver ignores pci function 1 of the bridge");
/*
* The following should be a hint, so we can do it on a per device
* instance, but this is convenient. Do not set this unless pci
* routing doesn't work. It is purposely vague and undocumented
* at the moment.
*/
static int pcic_intr_path = (int)pcic_iw_pci;
TUNABLE_INT("hw.pcic.intr_path", &pcic_intr_path);
SYSCTL_INT(_hw_pcic, OID_AUTO, intr_path, CTLFLAG_RD, &pcic_intr_path, 0,
"Which path to send the interrupts over.");
static int pcic_init_routing = 0;
TUNABLE_INT("hw.pcic.init_routing", &pcic_init_routing);
SYSCTL_INT(_hw_pcic, OID_AUTO, init_routing, CTLFLAG_RD,
&pcic_init_routing, 0,
"Force the interrupt routing to be initialized on those bridges where\n\
doing so will cause probelms. Often when no interrupts appear to be routed\n\
setting this tunable to 1 will resolve the problem. PCI Cards will almost\n\
always require this, while builtin bridges need it less often");
static void pcic_pci_cardbus_init(device_t);
static pcic_intr_way_t pcic_pci_gen_func;
static pcic_intr_way_t pcic_pci_gen_csc;
static pcic_intr_mapirq_t pcic_pci_gen_mapirq;
static pcic_intr_way_t pcic_pci_oz67xx_func;
static pcic_intr_way_t pcic_pci_oz67xx_csc;
static pcic_init_t pcic_pci_oz67xx_init;
static pcic_intr_way_t pcic_pci_oz68xx_func;
static pcic_intr_way_t pcic_pci_oz68xx_csc;
static pcic_init_t pcic_pci_oz68xx_init;
static pcic_intr_way_t pcic_pci_pd67xx_func;
static pcic_intr_way_t pcic_pci_pd67xx_csc;
static pcic_init_t pcic_pci_pd67xx_init;
static pcic_intr_way_t pcic_pci_pd68xx_func;
static pcic_intr_way_t pcic_pci_pd68xx_csc;
static pcic_init_t pcic_pci_pd68xx_init;
static pcic_intr_way_t pcic_pci_ricoh_func;
static pcic_intr_way_t pcic_pci_ricoh_csc;
static pcic_init_t pcic_pci_ricoh_init;
static pcic_intr_way_t pcic_pci_ti113x_func;
static pcic_intr_way_t pcic_pci_ti113x_csc;
static pcic_init_t pcic_pci_ti_init;
static pcic_intr_way_t pcic_pci_ti12xx_func;
static pcic_intr_way_t pcic_pci_ti12xx_csc;
static pcic_intr_way_t pcic_pci_topic_func;
static pcic_intr_way_t pcic_pci_topic_csc;
static pcic_init_t pcic_pci_topic_init;
static struct pcic_chip pcic_pci_oz67xx_chip = {
pcic_pci_oz67xx_func,
pcic_pci_oz67xx_csc,
pcic_pci_gen_mapirq,
pcic_pci_oz67xx_init
};
static struct pcic_chip pcic_pci_oz68xx_chip = {
pcic_pci_oz68xx_func,
pcic_pci_oz68xx_csc,
pcic_pci_gen_mapirq,
pcic_pci_oz68xx_init
};
static struct pcic_chip pcic_pci_pd67xx_chip = {
pcic_pci_pd67xx_func,
pcic_pci_pd67xx_csc,
pcic_pci_gen_mapirq,
pcic_pci_pd67xx_init
};
static struct pcic_chip pcic_pci_pd68xx_chip = {
pcic_pci_pd68xx_func,
pcic_pci_pd68xx_csc,
pcic_pci_gen_mapirq,
pcic_pci_pd68xx_init
};
static struct pcic_chip pcic_pci_ricoh_chip = {
pcic_pci_ricoh_func,
pcic_pci_ricoh_csc,
pcic_pci_gen_mapirq,
pcic_pci_ricoh_init
};
static struct pcic_chip pcic_pci_ti113x_chip = {
pcic_pci_ti113x_func,
pcic_pci_ti113x_csc,
pcic_pci_gen_mapirq,
pcic_pci_ti_init
};
static struct pcic_chip pcic_pci_ti12xx_chip = {
pcic_pci_ti12xx_func,
pcic_pci_ti12xx_csc,
pcic_pci_gen_mapirq,
pcic_pci_ti_init
};
static struct pcic_chip pcic_pci_topic_chip = {
pcic_pci_topic_func,
pcic_pci_topic_csc,
pcic_pci_gen_mapirq,
pcic_pci_topic_init
};
static struct pcic_chip pcic_pci_generic_chip = {
pcic_pci_gen_func,
pcic_pci_gen_csc,
pcic_pci_gen_mapirq,
pcic_pci_cardbus_init
};
struct pcic_pci_table
{
u_int32_t devid;
const char *descr;
int type;
u_int32_t flags;
struct pcic_chip *chip;
} pcic_pci_devs[] = {
{ PCI_DEVICE_ID_PCIC_CLPD6729,
"Cirrus Logic PD6729/6730 PC-Card Controller",
PCIC_PD6729, PCIC_PD_POWER, &pcic_pci_pd67xx_chip },
{ PCI_DEVICE_ID_PCIC_CLPD6832,
"Cirrus Logic PD6832 PCI-CardBus Bridge",
PCIC_PD673X, PCIC_PD_POWER, &pcic_pci_pd68xx_chip },
{ PCI_DEVICE_ID_PCIC_CLPD6833,
"Cirrus Logic PD6833 PCI-CardBus Bridge",
PCIC_PD673X, PCIC_PD_POWER, &pcic_pci_pd68xx_chip },
{ PCI_DEVICE_ID_PCIC_CLPD6834,
"Cirrus Logic PD6834 PCI-CardBus Bridge",
PCIC_PD673X, PCIC_PD_POWER, &pcic_pci_pd68xx_chip },
{ PCI_DEVICE_ID_PCIC_OZ6729,
"O2micro OZ6729 PC-Card Bridge",
PCIC_I82365, PCIC_AB_POWER, &pcic_pci_oz67xx_chip },
{ PCI_DEVICE_ID_PCIC_OZ6730,
"O2micro OZ6730 PC-Card Bridge",
PCIC_I82365, PCIC_AB_POWER, &pcic_pci_oz67xx_chip },
{ PCI_DEVICE_ID_PCIC_OZ6832,
"O2micro 6832/6833 PCI-Cardbus Bridge",
PCIC_I82365, PCIC_AB_POWER, &pcic_pci_oz68xx_chip },
{ PCI_DEVICE_ID_PCIC_OZ6860,
"O2micro 6836/6860 PCI-Cardbus Bridge",
PCIC_I82365, PCIC_AB_POWER, &pcic_pci_oz68xx_chip },
{ PCI_DEVICE_ID_PCIC_OZ6872,
"O2micro 6812/6872 PCI-Cardbus Bridge",
PCIC_I82365, PCIC_AB_POWER, &pcic_pci_oz68xx_chip },
{ PCI_DEVICE_ID_PCIC_OZ6912,
"O2micro 6912 PCI-Cardbus Bridge",
PCIC_I82365, PCIC_AB_POWER, &pcic_pci_oz68xx_chip },
{ PCI_DEVICE_ID_PCIC_OZ6922,
"O2micro 6922 PCI-Cardbus Bridge",
PCIC_I82365, PCIC_AB_POWER, &pcic_pci_oz68xx_chip },
{ PCI_DEVICE_ID_PCIC_OZ6933,
"O2micro 6933 PCI-Cardbus Bridge",
PCIC_I82365, PCIC_AB_POWER, &pcic_pci_oz68xx_chip },
{ PCI_DEVICE_ID_RICOH_RL5C465,
"Ricoh RL5C465 PCI-CardBus Bridge",
PCIC_RF5C296, PCIC_RICOH_POWER, &pcic_pci_ricoh_chip },
{ PCI_DEVICE_ID_RICOH_RL5C475,
"Ricoh RL5C475 PCI-CardBus Bridge",
PCIC_RF5C296, PCIC_RICOH_POWER, &pcic_pci_ricoh_chip },
{ PCI_DEVICE_ID_RICOH_RL5C476,
"Ricoh RL5C476 PCI-CardBus Bridge",
PCIC_RF5C296, PCIC_RICOH_POWER, &pcic_pci_ricoh_chip },
{ PCI_DEVICE_ID_RICOH_RL5C477,
"Ricoh RL5C477 PCI-CardBus Bridge",
PCIC_RF5C296, PCIC_RICOH_POWER, &pcic_pci_ricoh_chip },
{ PCI_DEVICE_ID_RICOH_RL5C478,
"Ricoh RL5C478 PCI-CardBus Bridge",
PCIC_RF5C296, PCIC_RICOH_POWER, &pcic_pci_ricoh_chip },
{ PCI_DEVICE_ID_PCIC_TI1031,
"TI PCI-1031 PCI-PCMCIA Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti113x_chip },
{ PCI_DEVICE_ID_PCIC_TI1130,
"TI PCI-1130 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti113x_chip },
{ PCI_DEVICE_ID_PCIC_TI1131,
"TI PCI-1131 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti113x_chip },
{ PCI_DEVICE_ID_PCIC_TI1210,
"TI PCI-1210 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI1211,
"TI PCI-1211 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI1220,
"TI PCI-1220 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI1221,
"TI PCI-1221 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI1225,
"TI PCI-1225 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI1250,
"TI PCI-1250 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI1251,
"TI PCI-1251 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI1251B,
"TI PCI-1251B PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI1260,
"TI PCI-1260 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI1260B,
"TI PCI-1260B PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI1410,
"TI PCI-1410 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI1420,
"TI PCI-1420 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI1421,
"TI PCI-1421 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI1450,
"TI PCI-1450 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI1451,
"TI PCI-1451 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI4410,
"TI PCI-4410 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI4450,
"TI PCI-4450 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_PCIC_TI4451,
"TI PCI-4451 PCI-CardBus Bridge",
PCIC_I82365SL_DF, PCIC_DF_POWER, &pcic_pci_ti12xx_chip },
{ PCI_DEVICE_ID_TOSHIBA_TOPIC95,
"Toshiba ToPIC95 PCI-CardBus Bridge",
PCIC_I82365, PCIC_AB_POWER, &pcic_pci_topic_chip },
{ PCI_DEVICE_ID_TOSHIBA_TOPIC95B,
"Toshiba ToPIC95B PCI-CardBus Bridge",
PCIC_I82365, PCIC_AB_POWER, &pcic_pci_topic_chip },
{ PCI_DEVICE_ID_TOSHIBA_TOPIC97,
"Toshiba ToPIC97 PCI-CardBus Bridge",
PCIC_I82365, PCIC_DF_POWER, &pcic_pci_topic_chip },
{ PCI_DEVICE_ID_TOSHIBA_TOPIC100,
"Toshiba ToPIC100 PCI-CardBus Bridge",
PCIC_I82365, PCIC_DF_POWER, &pcic_pci_topic_chip },
{ 0, NULL, 0, 0, NULL }
};
/*
* Read a register from the PCIC.
*/
static unsigned char
pcic_pci_getb2(struct pcic_slot *sp, int reg)
{
return (bus_space_read_1(sp->bst, sp->bsh, sp->offset + reg));
}
/*
* Write a register on the PCIC
*/
static void
pcic_pci_putb2(struct pcic_slot *sp, int reg, unsigned char val)
{
bus_space_write_1(sp->bst, sp->bsh, sp->offset + reg, val);
}
/*
* lookup inside the table
*/
static struct pcic_pci_table *
pcic_pci_lookup(u_int32_t devid, struct pcic_pci_table *tbl)
{
while (tbl->devid) {
if (tbl->devid == devid)
return (tbl);
tbl++;
}
return (NULL);
}
/*
* The standard way to control fuction interrupts is via bit 7 in the BCR
* register. Some data sheets indicate that this is just for "intterupts"
* while others are clear that it is for function interrupts. When this
* bit is set, function interrupts are routed via the ExCA register. When
* this bit is clear, they are routed via the PCI bus, usually via the int
* in the INTPIN register.
*/
static int
pcic_pci_gen_func(struct pcic_slot *sp, enum pcic_intr_way way)
{
u_int16_t bcr;
bcr = pci_read_config(sp->sc->dev, CB_PCI_BRIDGE_CTRL, 2);
if (way == pcic_iw_pci)
bcr &= ~CB_BCR_INT_EXCA;
else
bcr |= CB_BCR_INT_EXCA;
pci_write_config(sp->sc->dev, CB_PCI_BRIDGE_CTRL, bcr, 2);
return (0);
}
static int
pcic_pci_gen_csc(struct pcic_slot *sp, enum pcic_intr_way way)
{
return (0);
}
/*
* The O2micro OZ67xx chips functions.
*/
static int
pcic_pci_oz67xx_func(struct pcic_slot *sp, enum pcic_intr_way way)
{
return (pcic_pci_gen_func(sp, way));
}
static int
pcic_pci_oz67xx_csc(struct pcic_slot *sp, enum pcic_intr_way way)
{
/*
* Need datasheet to find out what's going on. However, the
* 68xx datasheets are so vague that it is hard to know what
* the right thing to do is.
*/
/* XXX */
return (0);
}
static void
pcic_pci_oz67xx_init(device_t dev)
{
device_printf(dev, "Warning: O2micro OZ67xx chips may not work\n");
pcic_pci_cardbus_init(dev);
}
/*
* The O2micro OZ68xx chips functions.
*/
static int
pcic_pci_oz68xx_func(struct pcic_slot *sp, enum pcic_intr_way way)
{
return (pcic_pci_gen_func(sp, way));
}
static int
pcic_pci_oz68xx_csc(struct pcic_slot *sp, enum pcic_intr_way way)
{
/*
* The 68xx datasheets make it hard to know what the right thing
* do do here is. We do hwat we knjow, which is nothing, and
* hope for the best.
*/
/* XXX */
return (0);
}
static void
pcic_pci_oz68xx_init(device_t dev)
{
/*
* This is almost certainly incomplete.
*/
device_printf(dev, "Warning: O2micro OZ68xx chips may not work\n");
pcic_pci_cardbus_init(dev);
}
/*
* The Cirrus Logic PD6729/30. These are weird beasts, so be careful.
*/
static int
pcic_pci_pd67xx_func(struct pcic_slot *sp, enum pcic_intr_way way)
{
/*
* We're only supporting ISA interrupts, so do nothing for the
* moment.
*/
/* XXX */
return (0);
}
static int
pcic_pci_pd67xx_csc(struct pcic_slot *sp, enum pcic_intr_way way)
{
/*
* We're only supporting ISA interrupts, so do nothing for the
* moment.
*/
/* XXX */
return (0);
}
static void
pcic_pci_pd67xx_init(device_t dev)
{
struct pcic_softc *sc = device_get_softc(dev);
if (sc->csc_route == pcic_iw_pci || sc->func_route == pcic_iw_pci)
device_printf(dev, "CL-PD67xx broken for PCI routing.\n");
}
/*
* Set up the CL-PD6832, 6833 and 6834.
*/
static int
pcic_pci_pd68xx_func(struct pcic_slot *sp, enum pcic_intr_way way)
{
return (pcic_pci_gen_func(sp, way));
}
static int
pcic_pci_pd68xx_csc(struct pcic_slot *sp, enum pcic_intr_way way)
{
struct pcic_softc *sc = sp->sc;
device_t dev = sc->dev;
u_int32_t device_id = pci_get_devid(dev);
u_long bcr;
u_long cm1;
/*
* CLPD6832 management interrupt enable bit is bit 11
* (MGMT_IRQ_ENA) in bridge control register(offset 0x3d).
* When on, card status interrupts are ISA controlled by
* the ExCA register 0x05.
*
* The CLPD6833 does things differently. It doesn't have bit
* 11 in the bridge control register. Instead, this
* functionality appears to be in the "Configuration
* Miscellaneous 1" register bit 1.
*
* I'm assuming that the CLPD6834 does things like the '33
*/
if (device_id == PCI_DEVICE_ID_PCIC_CLPD6832) {
bcr = pci_read_config(dev, CB_PCI_BRIDGE_CTRL, 2);
if (way == pcic_iw_pci)
bcr &= ~CLPD6832_BCR_MGMT_IRQ_ENA;
else
bcr |= CLPD6832_BCR_MGMT_IRQ_ENA;
pci_write_config(dev, CB_PCI_BRIDGE_CTRL, bcr, 2);
}
if (device_id != PCI_DEVICE_ID_PCIC_CLPD6832) {
cm1 = pci_read_config(dev, CLPD6833_CFG_MISC_1, 4);
if (way == pcic_iw_pci)
cm1 &= ~CLPD6833_CM1_MGMT_EXCA_ENA;
else
cm1 |= CLPD6833_CM1_MGMT_EXCA_ENA;
pci_write_config(dev, CLPD6833_CFG_MISC_1, cm1, 4);
}
return (0);
}
static void
pcic_pci_pd68xx_init(device_t dev)
{
pcic_pci_cardbus_init(dev);
}
static int
pcic_pci_ricoh_func(struct pcic_slot *sp, enum pcic_intr_way way)
{
return (pcic_pci_gen_func(sp, way));
}
static int
pcic_pci_ricoh_csc(struct pcic_slot *sp, enum pcic_intr_way way)
{
struct pcic_softc *sc = sp->sc;
device_t dev = sc->dev;
u_int16_t mcr2;
/*
* For CSC interrupts via ISA, we can't do that exactly.
* However, we can disable INT# routing, which is usually what
* we want. This is bit 7 in the field. Note, bit 6 looks
* interesting, but appears to be unnecessary.
*/
mcr2 = pci_read_config(dev, R5C47X_MISC_CONTROL_REGISTER_2, 2);
if (way == pcic_iw_pci)
mcr2 &= ~R5C47X_MCR2_CSC_TO_INTX_DISABLE;
else
mcr2 |= R5C47X_MCR2_CSC_TO_INTX_DISABLE;
pci_write_config(dev, R5C47X_MISC_CONTROL_REGISTER_2, mcr2, 2);
return (0);
}
static void
pcic_pci_ricoh_init(device_t dev)
{
u_int16_t brgcntl;
u_int32_t device_id = pci_get_devid(dev);
switch (device_id) {
case PCI_DEVICE_ID_RICOH_RL5C465:
case PCI_DEVICE_ID_RICOH_RL5C466:
/*
* Ricoh chips have a legacy bridge enable different than most
* Code cribbed from NEWBUS's bridge code since I can't find a
* datasheet for them that has register definitions.
*/
brgcntl = pci_read_config(dev, CB_PCI_BRIDGE_CTRL, 2);
brgcntl &= ~(CB_BCR_RL_3E2_EN | CB_BCR_RL_3E0_EN);
pci_write_config(dev, CB_PCI_BRIDGE_CTRL, brgcntl, 2);
break;
}
pcic_pci_cardbus_init(dev);
}
/*
* TI 1030, 1130, and 1131.
*/
static int
pcic_pci_ti113x_func(struct pcic_slot *sp, enum pcic_intr_way way)
{
u_int32_t cardcntl;
device_t dev = sp->sc->dev;
/*
* The TI-1130 (and 1030 and 1131) have a different interrupt
* routing control than the newer cards. assume we're not
* routing PCI, but enable as necessary when we find someone
* uses PCI interrupts. In order to get any pci interrupts,
* PCI_IRQ_ENA (bit 5) must be set. If either PCI_IREQ (bit
* 4) or PCI_CSC (bit 3) are set, then set bit 5 at the same
* time, since setting them enables the PCI interrupt routing.
*
* It also appears necessary to set the function routing bit
* in the bridge control register, but cardbus_init does that
* for us.
*/
cardcntl = pci_read_config(dev, TI113X_PCI_CARD_CONTROL, 1);
if (way == pcic_iw_pci)
cardcntl |= TI113X_CARDCNTL_PCI_IREQ;
else
cardcntl &= ~TI113X_CARDCNTL_PCI_IREQ;
if (cardcntl & (TI113X_CARDCNTL_PCI_IREQ | TI113X_CARDCNTL_PCI_CSC))
cardcntl |= TI113X_CARDCNTL_PCI_IRQ_ENA;
else
cardcntl &= ~TI113X_CARDCNTL_PCI_IRQ_ENA;
pci_write_config(dev, TI113X_PCI_CARD_CONTROL, cardcntl, 1);
return (pcic_pci_gen_func(sp, way));
}
static int
pcic_pci_ti113x_csc(struct pcic_slot *sp, enum pcic_intr_way way)
{
u_int32_t cardcntl;
device_t dev = sp->sc->dev;
/*
* The TI-1130 (and 1030 and 1131) have a different interrupt
* routing control than the newer cards. assume we're not
* routing PCI, but enable as necessary when we find someone
* uses PCI interrupts. In order to get any pci interrupts,
* PCI_IRQ_ENA (bit 5) must be set. If either PCI_IREQ (bit
* 4) or PCI_CSC (bit 3) are set, then set bit 5 at the same
* time, since setting them enables the PCI interrupt routing.
*
* It also appears necessary to set the function routing bit
* in the bridge control register, but cardbus_init does that
* for us.
*/
cardcntl = pci_read_config(dev, TI113X_PCI_CARD_CONTROL, 1);
if (way == pcic_iw_pci)
cardcntl |= TI113X_CARDCNTL_PCI_CSC;
else
cardcntl &= ~TI113X_CARDCNTL_PCI_CSC;
if (cardcntl & (TI113X_CARDCNTL_PCI_IREQ | TI113X_CARDCNTL_PCI_CSC))
cardcntl |= TI113X_CARDCNTL_PCI_IRQ_ENA;
else
cardcntl &= ~TI113X_CARDCNTL_PCI_IRQ_ENA;
pci_write_config(dev, TI113X_PCI_CARD_CONTROL, cardcntl, 1);
return (0);
}
static int
pcic_pci_ti12xx_func(struct pcic_slot *sp, enum pcic_intr_way way)
{
return (pcic_pci_gen_func(sp, way));
}
static int
pcic_pci_ti12xx_csc(struct pcic_slot *sp, enum pcic_intr_way way)
{
/*
* Nothing happens here. The TI12xx parts will route the
* CSC interrupt via PCI if ExCA register tells it to use
* interrupt 0. And via IRQ otherwise (except for reserved
* values which may or may not do anything).
*
* We just hope for the best here that doing nothing is the
* right thing to do.
*/
return (0);
}
/*
* TI PCI-CardBus Host Adapter specific function code.
* This function is separated from pcic_pci_attach().
* Takeshi Shibagaki(shiba@jp.freebsd.org).
*/
static void
pcic_pci_ti_init(device_t dev)
{
u_int32_t syscntl, diagctl, devcntl, cardcntl;
u_int32_t device_id = pci_get_devid(dev);
struct pcic_softc *sc = device_get_softc(dev);
int ti113x = (device_id == PCI_DEVICE_ID_PCIC_TI1031) ||
(device_id == PCI_DEVICE_ID_PCIC_TI1130) ||
(device_id == PCI_DEVICE_ID_PCIC_TI1131);
syscntl = pci_read_config(dev, TI113X_PCI_SYSTEM_CONTROL, 4);
devcntl = pci_read_config(dev, TI113X_PCI_DEVICE_CONTROL, 1);
cardcntl = pci_read_config(dev, TI113X_PCI_CARD_CONTROL, 1);
if (ti113x) {
device_printf(dev, "TI113X PCI Config Reg: ");
if (syscntl & TI113X_SYSCNTL_CLKRUN_ENA) {
if (syscntl & TI113X_SYSCNTL_CLKRUN_SEL)
printf("[clkrun irq 12]");
else
printf("[clkrun irq 10]");
}
} else {
device_printf(dev, "TI12XX PCI Config Reg: ");
/*
* Turn on async CSC interrupts. This appears to
* be the default, but the old, pre pci-aware, code
* did this and it appears PAO does as well.
*/
diagctl = pci_read_config(dev, TI12XX_PCI_DIAGNOSTIC, 1);
diagctl |= TI12XX_DIAG_CSC_INTR;
pci_write_config(dev, TI12XX_PCI_DIAGNOSTIC, diagctl, 1);
/*
* 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);
}
/*
* Special code for the Orinoco cards (and a few others). They
* seem to need this special code to make them work only over pci
* interrupts. Sadly, doing this code also causes problems for
* many laptops, so we have to make it controlled by a tunable.
*/
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);
}
/*
* Code for TOPIC chips
*/
static int
pcic_pci_topic_func(struct pcic_slot *sp, enum pcic_intr_way way)
{
#ifdef THIS_BRAEKS_THINGS
device_t dev = sp->sc->dev;
u_int32_t scr;
scr = pci_read_config(dev, TOPIC_SOCKET_CTRL, 4);
if (way == pcic_iw_pci)
scr |= TOPIC_SOCKET_CTRL_SCR_IRQSEL;
else
scr &= ~TOPIC_SOCKET_CTRL_SCR_IRQSEL;
pci_write_config(dev, TOPIC_SLOT_CTRL, scr, 4);
#endif
return (pcic_pci_gen_func(sp, way));
}
static int
pcic_pci_topic_csc(struct pcic_slot *sp, enum pcic_intr_way way)
{
device_t dev = sp->sc->dev;
u_int32_t scr;
u_int32_t device_id;
device_id = pci_get_devid(dev);
if (device_id == PCI_DEVICE_ID_TOSHIBA_TOPIC100 ||
device_id == PCI_DEVICE_ID_TOSHIBA_TOPIC97) {
scr = pci_read_config(dev, TOPIC_SLOT_CTRL, 4);
if (way == pcic_iw_pci)
scr |= TOPIC97_SLOT_CTRL_PCIINT;
else
scr &= ~TOPIC97_SLOT_CTRL_PCIINT;
pci_write_config(dev, TOPIC_SLOT_CTRL, scr, 4);
}
return (0);
}
static void
pcic_pci_topic_init(device_t dev)
{
struct pcic_softc *sc = device_get_softc(dev);
u_int32_t reg;
u_int32_t device_id;
device_id = pci_get_devid(dev);
if (device_id == PCI_DEVICE_ID_TOSHIBA_TOPIC100 ||
device_id == PCI_DEVICE_ID_TOSHIBA_TOPIC97) {
/*
* We need to enable voltage sense and 3V cards explicitly
* in the bridge. The datasheets I have for both the
* ToPIC 97 and 100 both lists these ports. Without
* datasheets for the ToPIC95s, I can't tell if we need
* to do it there or not.
*/
pcic_setb(&sc->slots[0], PCIC_TOPIC_FCR,
PCIC_FCR_3V_EN | PCIC_FCR_VS_EN);
}
reg = pci_read_config(dev, TOPIC_SLOT_CTRL, 4);
reg |= (TOPIC_SLOT_CTRL_SLOTON | TOPIC_SLOT_CTRL_SLOTEN |
TOPIC_SLOT_CTRL_ID_LOCK | TOPIC_SLOT_CTRL_CARDBUS);
reg &= ~TOPIC_SLOT_CTRL_SWDETECT;
if (device_id == PCI_DEVICE_ID_TOSHIBA_TOPIC100 ||
device_id == PCI_DEVICE_ID_TOSHIBA_TOPIC97)
reg &= ~(TOPIC97_SLOT_CTRL_STSIRQP | TOPIC97_SLOT_CTRL_IRQP);
pci_write_config(dev, TOPIC_SLOT_CTRL, reg, 4);
pcic_pci_cardbus_init(dev);
}
static void
pcic_pci_cardbus_init(device_t dev)
{
struct pcic_softc *sc = device_get_softc(dev);
u_int16_t brgcntl;
int unit;
unit = device_get_unit(dev);
brgcntl = pci_read_config(dev, CB_PCI_BRIDGE_CTRL, 2);
brgcntl |= CB_BCR_WRITE_POST_EN | CB_BCR_MASTER_ABORT;
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 memory I/O windows. 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);
/*
* Force the function interrupts to be pulse rather than
* edge triggered.
*/
sc->chip->func_intr_way(&sc->slots[0], pcic_iw_isa);
sc->chip->csc_intr_way(&sc->slots[0], sc->csc_route);
return;
}
static const char *
pcic_pci_cardtype(u_int32_t stat)
{
if (stat & CB_SS_NOTCARD)
return ("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 also debounced. We turn
* off interrupt servicing during the settling time to prevent infinite
* loops in the driver.
*
* Note: We only handle the card detect change events. We don't handle
* power events and status change events.
*/
static void
pcic_cd_change(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);
/* Status changed while present; remove the card from the system. */
if (sc->cd_present) {
sc->cd_present = 0;
pccard_event(sp->slt, card_removed);
}
/* Nothing to do if the debounced state is 'not present'. */
if ((stat & CB_SS_CD) != 0)
return;
sc->cd_present = 1;
if (bootverbose && (stat & CB_SS_BADVCC) != 0)
device_printf(sc->dev, "BAD Vcc request\n");
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;
event = bus_space_read_4(sp->bst, sp->bsh, CB_SOCKET_EVENT);
if (event != 0) {
if (bootverbose)
device_printf(sc->dev, "Event mask 0x%x\n", event);
/*
* Treat all card-detect signal transitions the same way
* since we can't reliably tell if this is an insert or a
* remove event. Stop the card from getting interrupts and
* defer the insert/remove event until the CB_SOCKET_STATE
* signals have had time to settle.
*/
if ((event & CB_SE_CD) != 0) {
if (sc->cd_pending) {
untimeout(pcic_cd_change, arg, sc->cd_ch);
sc->cd_pending = 0;
}
sc->cd_pending = 1;
sc->cd_ch = timeout(pcic_cd_change, arg, hz/2);
sc->func_intr = NULL;
}
/* 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.
*
* We have to check it every interrupt because these bits can sometimes
* show up indepentently of the CB_SOCKET_EVENT register above.
*/
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.
*
* Note: The CLPD6729 is a special case. See its init function
* for an explaination of ISA vs PCI interrupts.
*/
if (pcic_intr_path == pcic_iw_pci &&
device_id != PCI_DEVICE_ID_PCIC_CLPD6729) {
rid = 0;
#ifdef __i386__
/*
* IRQ 0 is invalid on x86, but not other platforms.
* If we have irq 0, then write 255 to force a new, non-
* bogus one to be assigned.
*/
if (pci_get_irq(dev) == 0) {
pci_set_irq(dev, 255);
pci_write_config(dev, PCIR_INTLINE, 255, 1);
}
#endif
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)
{
/*
* More reports of things working w/o this code than with it.
*/
#if 0
struct pcic_softc *sc;
struct pcic_slot *sp;
sc = (struct pcic_softc *) device_get_softc(dev);
sp = &sc->slots[0];
/*
* Make the chips use ISA again.
*/
sc->chip->func_intr_way(&sc->slots[0], pcic_iw_isa);
sc->chip->csc_intr_way(&sc->slots[0], pcic_iw_isa);
/*
* 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.
*
* Also, turn off the generation of status interrupts too.
*/
sp->putb(sp, PCIC_INT_GEN, 0);
sp->putb(sp, PCIC_STAT_INT, 0);
sp->putb(sp, PCIC_POWER, 0);
DELAY(4000);
/*
* 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.
* We also set the interrupt mask to 0, in an effort to avoid
* getting further interrupts.
*/
bus_space_write_4(sp->bst, sp->bsh, CB_SOCKET_MASK, 0);
bus_space_write_4(sp->bst, sp->bsh, CB_SOCKET_EVENT, 0xffffffff);
sp->getb(sp, PCIC_STAT_CHG);
#endif
}
/*
* Print out the config space
*/
static void
pcic_pci_print_config(device_t dev)
{
int i;
device_printf(dev, "PCI Configuration space:");
for (i = 0; i < 256; i += 4) {
if (i % 16 == 0)
printf("\n 0x%02x: ", i);
printf("0x%08x ", pci_read_config(dev, i, 4));
}
printf("\n");
}
/*
* 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;
u_int32_t stat;
struct pcic_pci_table *itm;
int rid;
int i;
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) {
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);
sc->flags = PCIC_PD_POWER;
itm = pcic_pci_lookup(device_id, &pcic_pci_devs[0]);
for (i = 0; i < 2; i++) {
sp[i].bst = rman_get_bustag(sc->iores);
sp[i].bsh = rman_get_bushandle(sc->iores);
sp[i].sc = sc;
sp[i].revision = 0;
sp[i].getb = pcic_getb_io;
sp[i].putb = pcic_putb_io;
sp[i].offset = i * PCIC_SLOT_SIZE;
sp[i].controller = itm ? itm->type : PCIC_PD6729;
if ((sp[i].getb(&sp[i], PCIC_ID_REV) & 0xc0) == 0x80)
sp[i].slt = (struct slot *) 1;
}
/*
* We only support isa at this time. These cards can be
* wired up as either ISA cards *OR* PCI cards (well, weird
* hybrids are possible, but not seen in the wild). Since it
* is an either or thing, we assume ISA since all laptops that
* we supported in 4.3 and earlier work.
*/
sc->csc_route = pcic_iw_isa;
sc->func_route = pcic_iw_isa;
if (itm)
sc->flags = itm->flags;
} 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->flags = PCIC_CARDBUS_POWER; */
sp->slt = (struct slot *) 1;
sc->csc_route = pcic_intr_path;
sc->func_route = pcic_intr_path;
stat = bus_space_read_4(sp->bst, sp->bsh, CB_SOCKET_STATE);
sc->cd_present = (stat & CB_SS_CD) == 0;
}
sc->dev = dev;
if (itm)
sc->chip = itm->chip;
else
sc->chip = &pcic_pci_generic_chip;
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);
}
device_printf(dev,
"Management interrupt on ISA IRQ %ld\n", irq);
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 (!sc->chip)
panic("Bug: sc->chip not set!\n");
sc->chip->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);
}
}
if (bootverbose)
pcic_pci_print_config(dev);
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 int
pcic_pci_gen_mapirq(struct pcic_slot *sp, int irq)
{
/*
* If we're doing ISA interrupt routing, then just go to the
* generic ISA routine. Also, irq 0 means turn off the interrupts
* at the bridge. We do this by making the interrupts edge
* triggered rather then level.
*/
if (sp->sc->func_route == pcic_iw_isa || irq == 0)
return (pcic_isa_mapirq(sp, irq));
return (sp->sc->chip->func_intr_way(sp, pcic_iw_pci));
}
static void
pcic_pci_func_intr(void *arg)
{
struct pcic_softc *sc = (struct pcic_softc *) arg;
struct pcic_slot *sp = &sc->slots[0];
u_int32_t stat;
stat = bus_space_read_4(sp->bst, sp->bsh, CB_SOCKET_STATE);
if ((stat & CB_SS_CD) == 0 && sc->func_intr != 0)
sc->func_intr(sc->func_arg);
}
static int
pcic_pci_setup_intr(device_t dev, device_t child, struct resource *irq,
int flags, driver_intr_t *intr, void *arg, void **cookiep)
{
struct pcic_softc *sc = device_get_softc(dev);
struct pcic_slot *sp = &sc->slots[0];
int err;
if (sc->func_route == pcic_iw_isa)
return(pcic_setup_intr(dev, child, irq, flags, intr, arg,
cookiep));
#if __FreeBSD_version >= 500000
if ((flags & INTR_FAST) != 0)
#else
if ((flags & INTR_TYPE_FAST) != 0)
#endif
return (EINVAL);
if (sc->func_intr != NULL) {
device_printf(child, "Can't establish another ISR\n");
return (EINVAL);
}
err = bus_generic_setup_intr(dev, child, irq, flags,
pcic_pci_func_intr, sc, cookiep);
if (err != 0)
return (err);
sc->chip->map_irq(sp, rman_get_start(irq));
sc->func_intr = intr;
sc->func_arg = arg;
return (0);
}
static int
pcic_pci_teardown_intr(device_t dev, device_t child, struct resource *irq,
void *cookie)
{
struct pcic_softc *sc = device_get_softc(dev);
if (sc->func_route == pcic_iw_isa)
return (pcic_teardown_intr(dev, child, irq, cookie));
sc->func_intr = NULL;
return (bus_generic_teardown_intr(dev, child, irq, cookie));
}
static int
pcic_pci_resume(device_t dev)
{
struct pcic_softc *sc = device_get_softc(dev);
/*
* Some BIOSes will not save the BARs for the pci chips, so we
* must do it ourselves. If the BAR is reset to 0 for an I/O
* device, it will read back as 0x1, so no explicit test for
* memory devices are needed.
*
* Note: The PCI bus code should do this automatically for us on
* suspend/resume, but until it does, we have to cope.
*/
if (pci_read_config(dev, CB_PCI_SOCKET_BASE, 4) == 0)
pci_write_config(dev, CB_PCI_SOCKET_BASE,
rman_get_start(sc->memres), 4);
return (bus_generic_resume(dev));
}
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, pcic_pci_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_pci_setup_intr),
DEVMETHOD(bus_teardown_intr, pcic_pci_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);
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