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freebsd-dev/sys/pccard/pcic_isa.c

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Separate out isa attachment to its own file. The pci attachment will soon attach directly to pcic rather than the kludge pci-pcic device we have now. In some ways, this is similar to the work PAO3 did to try to support cardbus bridges. In some ways different. This and future commits will be taking from the spirit of many of those changes. pcicvar.h is completely different from the pcicvar.h that appeared in PAO3, but similar in concept.
2001-05-16 07:32:04 +00:00
/*
* Copyright (c) 2001 M. Warner Losh. 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, 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.
*
* 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>
Introduce two new tunables from the boot loader. hw.pcic.irq Globally set the IRQ for all pcic devices' management interrupt (aka card status change or CSC interrupt) This is what used to be known as machdep.pccard.pcic_irq (which has been retained for now for compatibility). hw.pcic.ignore_fuction_1 Ignores function 1 for all PCIC bridges by not attaching to them. Lucent released a huge batch of cards that were imporperly manufactuered (lacking the 0 ohm resister to disable slot 1). This is a big hammer to keep those cards from causing problems (I've had 4 people contact me saying my patches worked great once they added a kludge to always ignore function 1, or until they soldered these resistors in place!). No clue where to document these. They act as both boot loader environment variables, as well as read-only sysctls after boot. At the same time, sort sys/systm.h in its proper order after sys/sysctl.h.
2001-07-27 16:07:02 +00:00
#include <sys/sysctl.h>
#include <sys/systm.h>
Separate out isa attachment to its own file. The pci attachment will soon attach directly to pcic rather than the kludge pci-pcic device we have now. In some ways, this is similar to the work PAO3 did to try to support cardbus bridges. In some ways different. This and future commits will be taking from the spirit of many of those changes. pcicvar.h is completely different from the pcicvar.h that appeared in PAO3, but similar in concept.
2001-05-16 07:32:04 +00:00
#include <pccard/i82365.h>
#include <pccard/cardinfo.h>
#include <pccard/slot.h>
#include <pccard/pcicvar.h>
/* Get pnp IDs */
#include <isa/isavar.h>
#include <dev/pcic/i82365reg.h>
#include <dev/pccard/pccardvar.h>
#include "card_if.h"
static struct isa_pnp_id pcic_ids[] = {
{PCIC_PNP_ACTIONTEC, NULL}, /* AEI0218 */
{PCIC_PNP_IBM3765, NULL}, /* IBM3765 */
{PCIC_PNP_82365, NULL}, /* PNP0E00 */
{PCIC_PNP_CL_PD6720, NULL}, /* PNP0E01 */
{PCIC_PNP_VLSI_82C146, NULL}, /* PNP0E02 */
{PCIC_PNP_82365_CARDBUS, NULL}, /* PNP0E03 */
{PCIC_PNP_SCM_SWAPBOX, NULL}, /* SCM0469 */
Add PC9801-102 CBUS card to the list of plug and play devices. Some mapping of irq 6 may be required to use that irq, but if so, additional commits will follow. Submitted by: Hiroshi TSUKADA-san
2001-06-09 06:43:54 +00:00
{PCIC_NEC_PC9801_102, NULL}, /* NEC8091 */
On PC-98, map IRQ 6 to IRQ 7 at the pcic level. That is, when we're told to use IRQ 6, progam the pcic to use irq 7 instead. Evidentally, at least some of the cards are wired this way. If you want to use irq 6, configure it. All the mapping is done just before we set the interrupt registers. See [FreeBSD98-testers 5064] for details. Added commentary about valid interrupts on some CBUS pc98 CL PD6722 based cards. Submitted by: Hiroshi TSUKADA-san <hiroshi@kiwi.ne.jp>
2001-06-16 06:18:16 +00:00
{PCIC_NEC_PC9821RA_E01, NULL}, /* NEC8121 */
Separate out isa attachment to its own file. The pci attachment will soon attach directly to pcic rather than the kludge pci-pcic device we have now. In some ways, this is similar to the work PAO3 did to try to support cardbus bridges. In some ways different. This and future commits will be taking from the spirit of many of those changes. pcicvar.h is completely different from the pcicvar.h that appeared in PAO3, but similar in concept.
2001-05-16 07:32:04 +00:00
{0}
};
Next step on the road to pci: power taming. Work through the various power commands and convert them from a "is this a foo controller or a foo' controller or a foo''' controller" to a cabability based scheme. We have bits in the softc that tell us what kind of power control scheme the controller uses, rather than relying on being able to enumerate them all. Cardbus bridges are numerous, but nearly all implement the i82365sl-DF scheme (well, a few implement cirrus CL-PD67xx, but those were made by Cirrus Logic!). Add a pointer back to the softc in each pcic_slot so we can access these flags. Add comments that talk about the issues here. Also note in passing that there are two differ Vpp schemes in use and that we may need to adjust the code to deal with both of them. Note why it usually works now. We have 5 power management modes right now: KING, AB, DF, PD and VG. AB is for the i82365 stpes A, B and C. DF is for step DF. PD is the cirrus logic extensions for 3.3V while VG is the VADEM extensions for 3.3V. KING is for the IBM KING controller found on some old cards. # I'm looking for one of those old cards or a laptop that has the KING # bridge in it. We have to still cheat and treat the AB parts like the DF parts because pci isn't here yet. As far as I can tell, this is harmless for actual old parts and necessary to work with 3.3V cards in some laptops. This almost eliminates all tests for controller in the code. There are still a few unrelated to power that need taming as well.
2001-05-21 04:44:14 +00:00
static struct {
const char *name;
u_int32_t flags;
} bridges[] = {
{ "Intel i82365SL-A/B", PCIC_AB_POWER},
{ "IBM PCIC", PCIC_AB_POWER},
{ "VLSI 82C146", PCIC_AB_POWER},
{ "Cirrus logic 672x", PCIC_PD_POWER},
{ "Cirrus logic 6710", PCIC_PD_POWER},
{ "Vadem 365", PCIC_VG_POWER},
{ "Vadem 465", PCIC_VG_POWER},
{ "Vadem 468", PCIC_VG_POWER},
{ "Vadem 469", PCIC_VG_POWER},
Add better support for the Ricoh 5C296 and 5C396 chips. These chips have a slightly different 3.3V support than the other clones, so compensate as best we can. Note: 3.3V support is untested since I do not have any 3.3V cards that I know of to test it with.
2001-05-23 05:06:04 +00:00
{ "Ricoh RF5C296", PCIC_RICOH_POWER},
{ "Ricoh RF5C396", PCIC_RICOH_POWER},
Next step on the road to pci: power taming. Work through the various power commands and convert them from a "is this a foo controller or a foo' controller or a foo''' controller" to a cabability based scheme. We have bits in the softc that tell us what kind of power control scheme the controller uses, rather than relying on being able to enumerate them all. Cardbus bridges are numerous, but nearly all implement the i82365sl-DF scheme (well, a few implement cirrus CL-PD67xx, but those were made by Cirrus Logic!). Add a pointer back to the softc in each pcic_slot so we can access these flags. Add comments that talk about the issues here. Also note in passing that there are two differ Vpp schemes in use and that we may need to adjust the code to deal with both of them. Note why it usually works now. We have 5 power management modes right now: KING, AB, DF, PD and VG. AB is for the i82365 stpes A, B and C. DF is for step DF. PD is the cirrus logic extensions for 3.3V while VG is the VADEM extensions for 3.3V. KING is for the IBM KING controller found on some old cards. # I'm looking for one of those old cards or a laptop that has the KING # bridge in it. We have to still cheat and treat the AB parts like the DF parts because pci isn't here yet. As far as I can tell, this is harmless for actual old parts and necessary to work with 3.3V cards in some laptops. This almost eliminates all tests for controller in the code. There are still a few unrelated to power that need taming as well.
2001-05-21 04:44:14 +00:00
{ "IBM KING", PCIC_KING_POWER},
{ "Intel i82365SL-DF", PCIC_DF_POWER}
Move ISA specific code into pcic_isa. This is the probe routine, the get/setb1 routines. Also expose clrb and setb as pcic_{clrb,setb} so we can use it from the probe. pcic_probe is no longer needed.
2001-05-19 05:21:23 +00:00
};
/*
* Look for an Intel PCIC (or compatible).
* For each available slot, allocate a PC-CARD slot.
*/
Separate out isa attachment to its own file. The pci attachment will soon attach directly to pcic rather than the kludge pci-pcic device we have now. In some ways, this is similar to the work PAO3 did to try to support cardbus bridges. In some ways different. This and future commits will be taking from the spirit of many of those changes. pcicvar.h is completely different from the pcicvar.h that appeared in PAO3, but similar in concept.
2001-05-16 07:32:04 +00:00
static int
pcic_isa_probe(device_t dev)
{
Move ISA specific code into pcic_isa. This is the probe routine, the get/setb1 routines. Also expose clrb and setb as pcic_{clrb,setb} so we can use it from the probe. pcic_probe is no longer needed.
2001-05-19 05:21:23 +00:00
int slotnum, validslots = 0;
struct pcic_slot *sp;
struct pcic_slot *sp0;
struct pcic_slot *sp1;
struct pcic_slot spsave;
unsigned char c;
struct resource *r;
int rid;
struct pcic_softc *sc;
Separate out isa attachment to its own file. The pci attachment will soon attach directly to pcic rather than the kludge pci-pcic device we have now. In some ways, this is similar to the work PAO3 did to try to support cardbus bridges. In some ways different. This and future commits will be taking from the spirit of many of those changes. pcicvar.h is completely different from the pcicvar.h that appeared in PAO3, but similar in concept.
2001-05-16 07:32:04 +00:00
int error;
/* Check isapnp ids */
error = ISA_PNP_PROBE(device_get_parent(dev), dev, pcic_ids);
if (error == ENXIO)
return (ENXIO);
Move ISA specific code into pcic_isa. This is the probe routine, the get/setb1 routines. Also expose clrb and setb as pcic_{clrb,setb} so we can use it from the probe. pcic_probe is no longer needed.
2001-05-19 05:21:23 +00:00
if (bus_get_resource_start(dev, SYS_RES_IOPORT, 0) == 0)
Use bus_space functions rather than inb/outb. Add defines for PCIC_INDEX and PCIC_DATA offsets. Change PCIC_INDEX_0 to PCIC_PORT_0 Add define for PCIC_NPORT. Document why the vadem probe works.
2001-05-24 06:54:48 +00:00
bus_set_resource(dev, SYS_RES_IOPORT, 0, PCIC_PORT_0,
PCIC_NPORT);
Move ISA specific code into pcic_isa. This is the probe routine, the get/setb1 routines. Also expose clrb and setb as pcic_{clrb,setb} so we can use it from the probe. pcic_probe is no longer needed.
2001-05-19 05:21:23 +00:00
rid = 0;
r = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
if (!r) {
if (bootverbose)
device_printf(dev, "Cannot get I/O range\n");
return (ENOMEM);
}
sc = (struct pcic_softc *) device_get_softc(dev);
Migrate from unit based to dev base. Don't save unit number, but do save dev. Convert all uses of unit to dev as appropriate. Minor comment fixes to pcic_softc definition.
2001-05-25 18:28:49 +00:00
sc->dev = dev;
Move ISA specific code into pcic_isa. This is the probe routine, the get/setb1 routines. Also expose clrb and setb as pcic_{clrb,setb} so we can use it from the probe. pcic_probe is no longer needed.
2001-05-19 05:21:23 +00:00
sp = &sc->slots[0];
for (slotnum = 0; slotnum < PCIC_CARD_SLOTS; slotnum++, sp++) {
/*
* Initialise the PCIC slot table.
*/
Move getb1 and putb1 from pcic_isa.c to pcic.c. Rename them to pcic_{get,put}b_io. There are some pci bridges (the CL-PD6729 and maybe others) that do not have memory mapped registers, so we'll need these in both places. Declare them in pcicvar.h.
2001-05-24 04:03:28 +00:00
sp->getb = pcic_getb_io;
sp->putb = pcic_putb_io;
Use bus_space functions rather than inb/outb. Add defines for PCIC_INDEX and PCIC_DATA offsets. Change PCIC_INDEX_0 to PCIC_PORT_0 Add define for PCIC_NPORT. Document why the vadem probe works.
2001-05-24 06:54:48 +00:00
sp->bst = rman_get_bustag(r);
sp->bsh = rman_get_bushandle(r);
Move ISA specific code into pcic_isa. This is the probe routine, the get/setb1 routines. Also expose clrb and setb as pcic_{clrb,setb} so we can use it from the probe. pcic_probe is no longer needed.
2001-05-19 05:21:23 +00:00
sp->offset = slotnum * PCIC_SLOT_SIZE;
sp->controller = -1;
}
/*
* Prescan for the broken VLSI chips.
*
* According to the Linux PCMCIA code from David Hinds,
* working chipsets return 0x84 from their (correct) ID ports,
* while the broken ones would need to be probed at the new
* offset we set after we assume it's broken.
*
* Note: because of this, we may incorrectly detect a single
* slot vlsi chip as a i82365sl step D. I cannot find a
* datasheet for the affected chip, so that's the best we can
* do for now.
*/
sp0 = &sc->slots[0];
sp1 = &sc->slots[1];
if (sp0->getb(sp0, PCIC_ID_REV) == PCIC_VLSI82C146 &&
sp1->getb(sp1, PCIC_ID_REV) != PCIC_VLSI82C146) {
spsave = *sp1;
Use bus_space functions rather than inb/outb. Add defines for PCIC_INDEX and PCIC_DATA offsets. Change PCIC_INDEX_0 to PCIC_PORT_0 Add define for PCIC_NPORT. Document why the vadem probe works.
2001-05-24 06:54:48 +00:00
sp1->bsh += 4;
Move ISA specific code into pcic_isa. This is the probe routine, the get/setb1 routines. Also expose clrb and setb as pcic_{clrb,setb} so we can use it from the probe. pcic_probe is no longer needed.
2001-05-19 05:21:23 +00:00
sp1->offset = PCIC_SLOT_SIZE << 1;
if (sp1->getb(sp1, PCIC_ID_REV) != PCIC_VLSI82C146) {
*sp1 = spsave;
} else {
sp0->controller = PCIC_VLSI;
sp1->controller = PCIC_VLSI;
}
}
/*
* Look for normal chipsets here.
*/
sp = &sc->slots[0];
for (slotnum = 0; slotnum < PCIC_CARD_SLOTS; slotnum++, sp++) {
/*
* see if there's a PCMCIA controller here
* Intel PCMCIA controllers use 0x82 and 0x83
* IBM clone chips use 0x88 and 0x89, apparently
*/
c = sp->getb(sp, PCIC_ID_REV);
sp->revision = -1;
switch(c) {
/*
* 82365 or clones.
*/
case PCIC_INTEL0:
case PCIC_INTEL1:
sp->controller = PCIC_I82365;
sp->revision = c & 1;
/*
Use bus_space functions rather than inb/outb. Add defines for PCIC_INDEX and PCIC_DATA offsets. Change PCIC_INDEX_0 to PCIC_PORT_0 Add define for PCIC_NPORT. Document why the vadem probe works.
2001-05-24 06:54:48 +00:00
* Check for Vadem chips by unlocking their extra
* registers and looking for valid ID. Bit 3 in
* the ID register is normally 0, except when
* PCIC_VADEMREV is set. Other bridges appear
* to ignore this frobbing.
Move ISA specific code into pcic_isa. This is the probe routine, the get/setb1 routines. Also expose clrb and setb as pcic_{clrb,setb} so we can use it from the probe. pcic_probe is no longer needed.
2001-05-19 05:21:23 +00:00
*/
Use bus_space functions rather than inb/outb. Add defines for PCIC_INDEX and PCIC_DATA offsets. Change PCIC_INDEX_0 to PCIC_PORT_0 Add define for PCIC_NPORT. Document why the vadem probe works.
2001-05-24 06:54:48 +00:00
bus_space_write_1(sp->bst, sp->bsh, PCIC_INDEX, 0x0E);
bus_space_write_1(sp->bst, sp->bsh, PCIC_INDEX, 0x37);
Move ISA specific code into pcic_isa. This is the probe routine, the get/setb1 routines. Also expose clrb and setb as pcic_{clrb,setb} so we can use it from the probe. pcic_probe is no longer needed.
2001-05-19 05:21:23 +00:00
pcic_setb(sp, PCIC_VMISC, PCIC_VADEMREV);
c = sp->getb(sp, PCIC_ID_REV);
if (c & 0x08) {
switch (sp->revision = c & 7) {
case 1:
sp->controller = PCIC_VG365;
break;
case 2:
sp->controller = PCIC_VG465;
break;
case 3:
sp->controller = PCIC_VG468;
break;
default:
sp->controller = PCIC_VG469;
break;
}
pcic_clrb(sp, PCIC_VMISC, PCIC_VADEMREV);
}
/*
Add better support for the Ricoh 5C296 and 5C396 chips. These chips have a slightly different 3.3V support than the other clones, so compensate as best we can. Note: 3.3V support is untested since I do not have any 3.3V cards that I know of to test it with.
2001-05-23 05:06:04 +00:00
* Check for RICOH RF5C[23]96 PCMCIA Controller
Move ISA specific code into pcic_isa. This is the probe routine, the get/setb1 routines. Also expose clrb and setb as pcic_{clrb,setb} so we can use it from the probe. pcic_probe is no longer needed.
2001-05-19 05:21:23 +00:00
*/
Add better support for the Ricoh 5C296 and 5C396 chips. These chips have a slightly different 3.3V support than the other clones, so compensate as best we can. Note: 3.3V support is untested since I do not have any 3.3V cards that I know of to test it with.
2001-05-23 05:06:04 +00:00
c = sp->getb(sp, PCIC_RICOH_ID);
if (c == PCIC_RID_396)
Move ISA specific code into pcic_isa. This is the probe routine, the get/setb1 routines. Also expose clrb and setb as pcic_{clrb,setb} so we can use it from the probe. pcic_probe is no longer needed.
2001-05-19 05:21:23 +00:00
sp->controller = PCIC_RF5C396;
Add better support for the Ricoh 5C296 and 5C396 chips. These chips have a slightly different 3.3V support than the other clones, so compensate as best we can. Note: 3.3V support is untested since I do not have any 3.3V cards that I know of to test it with.
2001-05-23 05:06:04 +00:00
else if (c == PCIC_RID_296)
sp->controller = PCIC_RF5C296;
Move ISA specific code into pcic_isa. This is the probe routine, the get/setb1 routines. Also expose clrb and setb as pcic_{clrb,setb} so we can use it from the probe. pcic_probe is no longer needed.
2001-05-19 05:21:23 +00:00
break;
/*
Add better support for the Ricoh 5C296 and 5C396 chips. These chips have a slightly different 3.3V support than the other clones, so compensate as best we can. Note: 3.3V support is untested since I do not have any 3.3V cards that I know of to test it with.
2001-05-23 05:06:04 +00:00
* Intel i82365sl-DF step or maybe a vlsi 82c146
Move ISA specific code into pcic_isa. This is the probe routine, the get/setb1 routines. Also expose clrb and setb as pcic_{clrb,setb} so we can use it from the probe. pcic_probe is no longer needed.
2001-05-19 05:21:23 +00:00
* we detected the vlsi case earlier, so if the controller
* isn't set, we know it is a i82365sl step D.
*/
case PCIC_INTEL2:
if (sp->controller == -1)
sp->controller = PCIC_I82365SL_DF;
break;
case PCIC_IBM1:
case PCIC_IBM2:
sp->controller = PCIC_IBM;
sp->revision = c & 1;
break;
case PCIC_IBM3:
sp->controller = PCIC_IBM_KING;
sp->revision = c & 1;
break;
default:
continue;
}
/*
* Check for Cirrus logic chips.
*/
sp->putb(sp, PCIC_CLCHIP, 0);
c = sp->getb(sp, PCIC_CLCHIP);
if ((c & PCIC_CLC_TOGGLE) == PCIC_CLC_TOGGLE) {
c = sp->getb(sp, PCIC_CLCHIP);
if ((c & PCIC_CLC_TOGGLE) == 0) {
if (c & PCIC_CLC_DUAL)
sp->controller = PCIC_PD672X;
else
sp->controller = PCIC_PD6710;
sp->revision = 8 - ((c & 0x1F) >> 2);
}
}
Next step on the road to pci: power taming. Work through the various power commands and convert them from a "is this a foo controller or a foo' controller or a foo''' controller" to a cabability based scheme. We have bits in the softc that tell us what kind of power control scheme the controller uses, rather than relying on being able to enumerate them all. Cardbus bridges are numerous, but nearly all implement the i82365sl-DF scheme (well, a few implement cirrus CL-PD67xx, but those were made by Cirrus Logic!). Add a pointer back to the softc in each pcic_slot so we can access these flags. Add comments that talk about the issues here. Also note in passing that there are two differ Vpp schemes in use and that we may need to adjust the code to deal with both of them. Note why it usually works now. We have 5 power management modes right now: KING, AB, DF, PD and VG. AB is for the i82365 stpes A, B and C. DF is for step DF. PD is the cirrus logic extensions for 3.3V while VG is the VADEM extensions for 3.3V. KING is for the IBM KING controller found on some old cards. # I'm looking for one of those old cards or a laptop that has the KING # bridge in it. We have to still cheat and treat the AB parts like the DF parts because pci isn't here yet. As far as I can tell, this is harmless for actual old parts and necessary to work with 3.3V cards in some laptops. This almost eliminates all tests for controller in the code. There are still a few unrelated to power that need taming as well.
2001-05-21 04:44:14 +00:00
device_set_desc(dev, bridges[(int) sp->controller].name);
sc->flags = bridges[(int) sp->controller].flags;
Move ISA specific code into pcic_isa. This is the probe routine, the get/setb1 routines. Also expose clrb and setb as pcic_{clrb,setb} so we can use it from the probe. pcic_probe is no longer needed.
2001-05-19 05:21:23 +00:00
/*
* OK it seems we have a PCIC or lookalike.
* Allocate a slot and initialise the data structures.
*/
validslots++;
sp->slt = (struct slot *) 1;
/*
* Modem cards send the speaker audio (dialing noises)
* to the host's speaker. Cirrus Logic PCIC chips must
* enable this. There is also a Low Power Dynamic Mode bit
* that claims to reduce power consumption by 30%, so
* enable it and hope for the best.
*/
if (sp->controller == PCIC_PD672X) {
pcic_setb(sp, PCIC_MISC1, PCIC_MISC1_SPEAKER);
pcic_setb(sp, PCIC_MISC2, PCIC_LPDM_EN);
}
}
bus_release_resource(dev, SYS_RES_IOPORT, rid, r);
return (validslots ? 0 : ENXIO);
Separate out isa attachment to its own file. The pci attachment will soon attach directly to pcic rather than the kludge pci-pcic device we have now. In some ways, this is similar to the work PAO3 did to try to support cardbus bridges. In some ways different. This and future commits will be taking from the spirit of many of those changes. pcicvar.h is completely different from the pcicvar.h that appeared in PAO3, but similar in concept.
2001-05-16 07:32:04 +00:00
}
static int
pcic_isa_attach(device_t dev)
{
Next step towards pcic_pci: the ability to allocate mapped memory in attach. o Introduce flags word to the softc. This will be used to control various aspects of the driver. Right now there are two bits defined, PCIC_IO_MAPPED and PCIC_MEM_MAPPED. One for ISA cards that are I/O mapped, the other is for PCI cards that are memory mapped. Only the ISA side is implemented with this commit. o Introduce a pcic_dealloc which will cleanly dealloc resources used. Right now it is only supported when called from probe/attach. o Keep track of resources allocated in the pcic_softc. o move pcictimeout_ch to the softc so we can support multiple devices in polling mode. o In ISA probe, set PCIC_IO_MAPPED. o Introduce and compute the slot mask. This will be used later when we expand the number of slots on ISA from 2 to 4. In such a case, we appear to have to use polling mode otherwise we get two different cards trying to drive the same interrupt line. I don't have hardware to test this configuration, so I'll stop here.
2001-05-21 03:22:52 +00:00
struct pcic_softc *sc;
Move allocation of ExCA registers from the base driver into the bus attachment code.
2001-05-21 07:32:46 +00:00
int rid;
struct resource *r;
Move the pcic interrupt from pcic.c to pcic_isa.c. The ISA handling for card change interrupts is different than the pci stuff that's coming soon. Set the management irq in different ways. If pci_parallel interrutp routing, then use the PCI way of getting interrupts. Move polling mode into pcic_isa since when we're routing via pci polling doesn't work because many bridges (systems hang solid). If we're routing interrupts via pci, they can be shared, so flag them as such. Note, this doesn't actually change anything since the pci attachment isn't quite ready to be committed.
2001-06-04 03:29:06 +00:00
int irq = 0;
int error;
Next step towards pcic_pci: the ability to allocate mapped memory in attach. o Introduce flags word to the softc. This will be used to control various aspects of the driver. Right now there are two bits defined, PCIC_IO_MAPPED and PCIC_MEM_MAPPED. One for ISA cards that are I/O mapped, the other is for PCI cards that are memory mapped. Only the ISA side is implemented with this commit. o Introduce a pcic_dealloc which will cleanly dealloc resources used. Right now it is only supported when called from probe/attach. o Keep track of resources allocated in the pcic_softc. o move pcictimeout_ch to the softc so we can support multiple devices in polling mode. o In ISA probe, set PCIC_IO_MAPPED. o Introduce and compute the slot mask. This will be used later when we expand the number of slots on ISA from 2 to 4. In such a case, we appear to have to use polling mode otherwise we get two different cards trying to drive the same interrupt line. I don't have hardware to test this configuration, so I'll stop here.
2001-05-21 03:22:52 +00:00
sc = device_get_softc(dev);
Move allocation of ExCA registers from the base driver into the bus attachment code.
2001-05-21 07:32:46 +00:00
rid = 0;
r = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
if (!r) {
pcic_dealloc(dev);
return (ENXIO);
}
sc->iorid = rid;
sc->iores = r;
Rearrange how we do interrupt routing tweaking. We now have hw.pcic.intr_path {1,2} 1 == ISA, 2 == PCI hw.pcic.init_route Force TI chipset initializations in edge case.
2001-08-21 20:04:42 +00:00
sc->csc_route = pcic_iw_isa;
sc->func_route = pcic_iw_isa;
Move the pcic interrupt from pcic.c to pcic_isa.c. The ISA handling for card change interrupts is different than the pci stuff that's coming soon. Set the management irq in different ways. If pci_parallel interrutp routing, then use the PCI way of getting interrupts. Move polling mode into pcic_isa since when we're routing via pci polling doesn't work because many bridges (systems hang solid). If we're routing interrupts via pci, they can be shared, so flag them as such. Note, this doesn't actually change anything since the pci attachment isn't quite ready to be committed.
2001-06-04 03:29:06 +00:00
rid = 0;
r = NULL;
r = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE);
Introduce two new tunables from the boot loader. hw.pcic.irq Globally set the IRQ for all pcic devices' management interrupt (aka card status change or CSC interrupt) This is what used to be known as machdep.pccard.pcic_irq (which has been retained for now for compatibility). hw.pcic.ignore_fuction_1 Ignores function 1 for all PCIC bridges by not attaching to them. Lucent released a huge batch of cards that were imporperly manufactuered (lacking the 0 ohm resister to disable slot 1). This is a big hammer to keep those cards from causing problems (I've had 4 people contact me saying my patches worked great once they added a kludge to always ignore function 1, or until they soldered these resistors in place!). No clue where to document these. They act as both boot loader environment variables, as well as read-only sysctls after boot. At the same time, sort sys/systm.h in its proper order after sys/sysctl.h.
2001-07-27 16:07:02 +00:00
if (r == NULL && pcic_override_irq != 0) {
irq = pcic_override_irq;
r = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, irq, irq, 1,
RF_ACTIVE);
Move the pcic interrupt from pcic.c to pcic_isa.c. The ISA handling for card change interrupts is different than the pci stuff that's coming soon. Set the management irq in different ways. If pci_parallel interrutp routing, then use the PCI way of getting interrupts. Move polling mode into pcic_isa since when we're routing via pci polling doesn't work because many bridges (systems hang solid). If we're routing interrupts via pci, they can be shared, so flag them as such. Note, this doesn't actually change anything since the pci attachment isn't quite ready to be committed.
2001-06-04 03:29:06 +00:00
}
if (r && ((1 << (rman_get_start(r))) & PCIC_INT_MASK_ALLOWED) == 0) {
device_printf(dev,
"Hardware does not support irq %d, trying polling.\n",
irq);
bus_release_resource(dev, SYS_RES_IRQ, rid, r);
irq = 0;
r = NULL;
}
sc->irqrid = rid;
sc->irqres = r;
irq = 0;
if (r != NULL) {
error = bus_setup_intr(dev, r, INTR_TYPE_MISC,
Move ISA interrupt ISR and timeout routines to pcic from pcic_isa so that we can use them in the pci code when we have to fall back to ISA interrupt routing.
2001-08-10 06:07:20 +00:00
pcic_isa_intr, (void *) sc, &sc->ih);
Move the pcic interrupt from pcic.c to pcic_isa.c. The ISA handling for card change interrupts is different than the pci stuff that's coming soon. Set the management irq in different ways. If pci_parallel interrutp routing, then use the PCI way of getting interrupts. Move polling mode into pcic_isa since when we're routing via pci polling doesn't work because many bridges (systems hang solid). If we're routing interrupts via pci, they can be shared, so flag them as such. Note, this doesn't actually change anything since the pci attachment isn't quite ready to be committed.
2001-06-04 03:29:06 +00:00
if (error) {
pcic_dealloc(dev);
return (error);
}
irq = rman_get_start(r);
device_printf(dev, "management irq %d\n", irq);
}
sc->irq = irq;
if (irq == 0) {
Move ISA interrupt ISR and timeout routines to pcic from pcic_isa so that we can use them in the pci code when we have to fall back to ISA interrupt routing.
2001-08-10 06:07:20 +00:00
sc->slot_poll = pcic_timeout;
Move the pcic interrupt from pcic.c to pcic_isa.c. The ISA handling for card change interrupts is different than the pci stuff that's coming soon. Set the management irq in different ways. If pci_parallel interrutp routing, then use the PCI way of getting interrupts. Move polling mode into pcic_isa since when we're routing via pci polling doesn't work because many bridges (systems hang solid). If we're routing interrupts via pci, they can be shared, so flag them as such. Note, this doesn't actually change anything since the pci attachment isn't quite ready to be committed.
2001-06-04 03:29:06 +00:00
sc->timeout_ch = timeout(sc->slot_poll, (void *) sc, hz/2);
device_printf(dev, "Polling mode\n");
}
Separate out isa attachment to its own file. The pci attachment will soon attach directly to pcic rather than the kludge pci-pcic device we have now. In some ways, this is similar to the work PAO3 did to try to support cardbus bridges. In some ways different. This and future commits will be taking from the spirit of many of those changes. pcicvar.h is completely different from the pcicvar.h that appeared in PAO3, but similar in concept.
2001-05-16 07:32:04 +00:00
return (pcic_attach(dev));
}
static device_method_t pcic_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, pcic_isa_probe),
DEVMETHOD(device_attach, pcic_isa_attach),
DEVMETHOD(device_detach, bus_generic_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
/* Bus interface */
DEVMETHOD(bus_print_child, bus_generic_print_child),
Turns out that one bit isn't enough. Introduce two new fields csc_route and func_route to hold the way that each interrupt is routed. csc is Card Status Change in the datasheets and standard, but is called "Management Interrupt" in FreeBSDese. There are three types of interrupt routing: ISA parallel, PCI parallel and ISA serial (some chipsets support other types as well, but I don't plan on supporting them). When we try to allocate an interrupt, and the type for that interrupt is pci_parallel, allow it to be shared by oring in RF_SHAREABLE to the flags argument. Introduce pcic_alloc_resource to allow this to happen.
2001-05-28 02:53:02 +00:00
DEVMETHOD(bus_alloc_resource, pcic_alloc_resource),
Separate out isa attachment to its own file. The pci attachment will soon attach directly to pcic rather than the kludge pci-pcic device we have now. In some ways, this is similar to the work PAO3 did to try to support cardbus bridges. In some ways different. This and future commits will be taking from the spirit of many of those changes. pcicvar.h is completely different from the pcicvar.h that appeared in PAO3, but similar in concept.
2001-05-16 07:32:04 +00:00
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, pcic_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_driver = {
"pcic",
pcic_methods,
sizeof(struct pcic_softc)
};
DRIVER_MODULE(pcic, isa, pcic_driver, pcic_devclass, 0, 0);
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