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freebsd/sys/pccard/pcic_pci.c

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/*
* 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/kernel.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <pci/pcireg.h>
#include <pci/pcivar.h>
#include <pci/pcic_p.h>
#include <pccard/i82365.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#define PRVERB(x) if (bootverbose) device_printf x
/*
* Set up the CL-PD6832 to look like a ISA based PCMCIA chip (a
* PD672X). This routine is called once per PCMCIA socket.
*/
static void
pd6832_legacy_init(device_t dev)
{
u_long bcr; /* to set interrupts */
u_short io_port; /* the io_port to map this slot on */
static int num6832; /* The number of 6832s initialized */
int unit;
num6832 = 0;
unit = device_get_unit(dev);
/*
* Some BIOS leave the legacy address uninitialized. This
* insures that the PD6832 puts itself where the driver will
* look. We assume that multiple 6832's should be laid out
* sequentially. We only initialize the first socket's legacy port,
* the other is a dummy.
*/
io_port = PCIC_INDEX_0 + num6832 * CLPD6832_NUM_REGS;
if (unit == 0)
pci_write_config(dev, CLPD6832_LEGACY_16BIT_IOADDR,
io_port & ~CLPD6832_LEGACY_16BIT_IOENABLE, 4);
/*
* I think this should be a call to pci_map_port, but that
* routine won't map regiaters above 0x28, and the register we
* need to map is 0x44.
*/
io_port = pci_read_config(dev, CLPD6832_LEGACY_16BIT_IOADDR, 4) &
~CLPD6832_LEGACY_16BIT_IOENABLE;
/*
* Configure the first I/O window to contain CLPD6832_NUM_REGS
* words and deactivate the second by setting the limit lower
* than the base.
*/
pci_write_config(dev, CLPD6832_IO_BASE0, io_port | 1, 4);
pci_write_config(dev, CLPD6832_IO_LIMIT0,
(io_port + CLPD6832_NUM_REGS) | 1, 4);
pci_write_config(dev, CLPD6832_IO_BASE1, (io_port + 0x20) | 1, 4);
pci_write_config(dev, CLPD6832_IO_LIMIT1, io_port | 1, 4);
/*
* Set default operating mode (I/O port space) and allocate
* this socket to the current unit.
*/
pci_write_config(dev, PCIR_COMMAND, CLPD6832_COMMAND_DEFAULTS, 4);
pci_write_config(dev, CLPD6832_SOCKET, unit, 4);
/*
* Set up the card inserted/card removed interrupts to come
* through the isa IRQ.
*/
bcr = pci_read_config(dev, CLPD6832_BRIDGE_CONTROL, 4);
bcr |= (CLPD6832_BCR_ISA_IRQ|CLPD6832_BCR_MGMT_IRQ_ENA);
pci_write_config(dev, CLPD6832_BRIDGE_CONTROL, bcr, 4);
/* After initializing 2 sockets, the chip is fully configured */
if (unit == 1)
num6832++;
PRVERB((dev, "CardBus: Legacy PC-card 16bit I/O address [0x%x]\n",
io_port));
}
/*
* TI1XXX PCI-CardBus Host Adapter specific function code.
* This function is separated from pcic_pci_attach().
* Support Device: TI1130,TI1131,TI1250,TI1220.
* Test Device: TI1221.
* Takeshi Shibagaki(shiba@jp.freebsd.org).
*/
static void
ti1xxx_pci_init(device_t dev)
{
u_long syscntl,devcntl,cardcntl;
u_int32_t device_id = pci_get_devid(dev);
char buf[128];
int ti113x = (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);
switch(ti113x){
case 0 :
strcpy(buf, "TI12XX PCI Config Reg: ");
break;
case 1 :
strcpy(buf, "TI113X PCI Config Reg: ");
/*
* Defalut 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)
*/
cardcntl |= TI113X_CARDCNTL_PCI_IREQ;
cardcntl |= TI113X_CARDCNTL_PCI_CSC;
if (syscntl & TI113X_SYSCNTL_CLKRUN_ENA){
if (syscntl & TI113X_SYSCNTL_CLKRUN_SEL)
strcat(buf, "[clkrun irq 12]");
else
strcat(buf, "[clkrun irq 10]");
}
break;
}
if (cardcntl & TI113X_CARDCNTL_RING_ENA)
strcat(buf, "[ring enable]");
if (cardcntl & TI113X_CARDCNTL_SPKR_ENA)
strcat(buf, "[speaker enable]");
if (syscntl & TI113X_SYSCNTL_PWRSAVINGS)
strcat(buf, "[pwr save]");
switch(devcntl & TI113X_DEVCNTL_INTR_MASK){
case TI113X_DEVCNTL_INTR_ISA :
strcat(buf, "[CSC parallel isa irq]");
break;
case TI113X_DEVCNTL_INTR_SERIAL :
strcat(buf, "[CSC serial isa irq]");
break;
case TI113X_DEVCNTL_INTR_NONE :
strcat(buf, "[pci only]");
break;
case TI12XX_DEVCNTL_INTR_ALLSERIAL :
strcat(buf, "[FUNC pci int + CSC serial isa irq]");
break;
}
pci_write_config(dev, TI113X_PCI_CARD_CONTROL, cardcntl, 1);
if (ti113x)
cardcntl = pci_read_config(dev, TI113X_PCI_CARD_CONTROL, 1);
device_printf(dev, "%s\n",buf);
}
static void
generic_cardbus_attach(device_t dev)
{
u_int16_t brgcntl;
u_int32_t iobase;
int unit;
unit = device_get_unit(dev);
/* 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);
/* 16bit Legacy Mode Base Address */
if (unit != 0)
return;
iobase = pci_read_config(dev, CB_PCI_LEGACY16_IOADDR, 2) &
~CB_PCI_LEGACY16_IOENABLE;
if (!iobase) {
iobase = 0x3e0 | CB_PCI_LEGACY16_IOENABLE;
pci_write_config(dev, CB_PCI_LEGACY16_IOADDR, iobase, 2);
iobase = pci_read_config(dev, CB_PCI_LEGACY16_IOADDR, 2)
& ~CB_PCI_LEGACY16_IOENABLE;
}
PRVERB((dev, "Legacy address set to %#x\n", iobase));
return;
}
/*
* Return the ID string for the controller if the vendor/product id
* matches, NULL otherwise.
*/
static int
pcic_pci_probe(device_t dev)
{
u_int32_t device_id;
char *desc;
device_id = pci_get_devid(dev);
desc = NULL;
switch (device_id) {
case PCI_DEVICE_ID_PCIC_CLPD6832:
desc = "Cirrus Logic PD6832 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_PCIC_TI1031:
desc = "TI PCI-1031 PCI-PCMCIA Bridge";
break;
case PCI_DEVICE_ID_PCIC_TI1130:
desc = "TI PCI-1130 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_PCIC_TI1131:
desc = "TI PCI-1131 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_PCIC_TI1211:
desc = "TI PCI-1211 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_PCIC_TI1220:
desc = "TI PCI-1220 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_PCIC_TI1221:
desc = "TI PCI-1221 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_PCIC_TI1225:
desc = "TI PCI-1225 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_PCIC_TI1250:
desc = "TI PCI-1250 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_PCIC_TI1251:
desc = "TI PCI-1251 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_PCIC_TI1251B:
desc = "TI PCI-1251B PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_PCIC_TI1410:
desc = "TI PCI-1410 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_PCIC_TI1420:
desc = "TI PCI-1420 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_PCIC_TI1450:
desc = "TI PCI-1450 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_PCIC_TI1451:
desc = "TI PCI-1451 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_TOSHIBA_TOPIC95:
desc = "Toshiba ToPIC95 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_TOSHIBA_TOPIC97:
desc = "Toshiba ToPIC97 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_RICOH_RL5C465:
desc = "Ricoh RL5C465 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_RICOH_RL5C475:
desc = "Ricoh RL5C475 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_RICOH_RL5C476:
desc = "Ricoh RL5C476 PCI-CardBus Bridge";
break;
case PCI_DEVICE_ID_RICOH_RL5C478:
desc = "Ricoh RL5C478 PCI-CardBus Bridge";
break;
/* 16bit PC-card bridges */
case PCI_DEVICE_ID_PCIC_CLPD6729:
desc = "Cirrus Logic PD6729/6730 PC-Card Controller";
break;
case PCI_DEVICE_ID_PCIC_OZ6729:
desc = "O2micro OZ6729 PC-Card Bridge";
break;
case PCI_DEVICE_ID_PCIC_OZ6730:
desc = "O2micro OZ6730 PC-Card Bridge";
break;
default:
break;
}
if (desc == NULL)
return (ENXIO);
device_set_desc(dev, desc);
return 0; /* exact match */
}
/*
* General PCI based card dispatch routine. Right now
* it only understands the CL-PD6832.
*/
static int
pcic_pci_attach(device_t dev)
{
u_int32_t device_id = pci_get_devid(dev);
u_long command;
/* Init. CardBus/PC-card controllers as 16-bit PC-card controllers */
/* Place any per "slot" initialization here */
/*
* 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);
switch (device_id) {
case PCI_DEVICE_ID_PCIC_TI1130:
case PCI_DEVICE_ID_PCIC_TI1131:
case PCI_DEVICE_ID_PCIC_TI1211:
case PCI_DEVICE_ID_PCIC_TI1220:
case PCI_DEVICE_ID_PCIC_TI1221:
case PCI_DEVICE_ID_PCIC_TI1225:
case PCI_DEVICE_ID_PCIC_TI1250:
case PCI_DEVICE_ID_PCIC_TI1251:
case PCI_DEVICE_ID_PCIC_TI1251B:
case PCI_DEVICE_ID_PCIC_TI1410:
case PCI_DEVICE_ID_PCIC_TI1420:
case PCI_DEVICE_ID_PCIC_TI1450:
case PCI_DEVICE_ID_PCIC_TI1451:
ti1xxx_pci_init(dev);
/* FALLTHROUGH */
default:
generic_cardbus_attach(dev);
break;
case PCI_DEVICE_ID_PCIC_CLPD6832:
pd6832_legacy_init(dev);
break;
case PCI_DEVICE_ID_PCIC_TI1031:
break;
}
if (bootverbose) {
int i, j;
u_char *p;
u_long *pl;
printf("PCI Config space:\n");
for (j = 0; j < 0x98; j += 16) {
printf("%02x: ", j);
for (i = 0; i < 16; i += 4)
printf(" %08x", pci_read_config(dev, i+j, 4));
printf("\n");
}
p = (u_char *)pmap_mapdev(pci_read_config(dev, 0x10, 4),
0x1000);
pl = (u_long *)p;
printf("Cardbus Socket registers:\n");
printf("00: ");
for (i = 0; i < 4; i += 1)
printf(" %08lx:", pl[i]);
printf("\n10: ");
for (i = 4; i < 8; i += 1)
printf(" %08lx:", pl[i]);
printf("\nExCa registers:\n");
for (i = 0; i < 0x40; i += 16)
printf("%02x: %16D\n", i, p + 0x800 + i, " ");
}
return 0;
}
static int
pcic_pci_detach(device_t dev)
{
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, bus_generic_shutdown),
{0, 0}
};
static driver_t pcic_pci_driver = {
"pcic-pci",
pcic_pci_methods,
0 /* no softc */
};
static devclass_t pcic_pci_devclass;
DRIVER_MODULE(pcic_pci, pci, pcic_pci_driver, pcic_pci_devclass, 0, 0);
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