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freebsd/sys/pccard/pcicvar.h

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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.
*
* $FreeBSD$
*/
/*
* Per-slot data table.
*/
struct pcic_slot {
int offset; /* Offset value for index */
char controller; /* Device type */
char revision; /* Device Revision */
struct slot *slt; /* Back ptr to slot */
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
struct pcic_softc *sc; /* Back pointer to softc */
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
u_char (*getb)(struct pcic_slot *, int);
void (*putb)(struct pcic_slot *, int, u_char);
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_tag_t bst;
bus_space_handle_t bsh;
Some interrelated interrupt changes. Frist, for pci slots, make the setup intr save the requested interrupt vector and arg and return rather than passing it up to our parent. On interrupts, we call this vector iff there's a card in the slot. This should eliminate some of the hangs or "weird" messages that people see when ejecting cards and also help close the race window somewhat. Reading the pci bus one more time for this information is judged to be an acceptible tradeoff since it is very very fast. Cleanup a little how we detect unsupported cards. Only detect unsupported cards (eg cardbus cards) on card insertion (or more pedantically when a card is actually present). This should allow us to change the message in the future to "cardbus card not supported with OLDCARD" :-). Note: We may also consider this for the ISA bus case, but there the reads are much more expensive and the location of the CD pin status lines appears to be less standardized. Also, the ISA management interrupt isn't shared with the card's interrupt. The mutliplex the CSC and function interrupts bit also appears to be non-standard (or at least not imlemented on all bridges).
2001-07-01 23:41:43 +00:00
driver_intr_t *intr;
void *argp;
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
};
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
enum pcic_irq_type { isa_parallel, pci_parallel, isa_serial };
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
struct pcic_softc
{
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
u_int32_t slotmask;/* Mask of valid slots */
u_int32_t flags; /* Interesting flags */
Move allocation of ExCA registers from the base driver into the bus attachment code.
2001-05-21 07:32:46 +00:00
#define PCIC_AB_POWER 0x00000001 /* Use old A/B step power */
#define PCIC_DF_POWER 0x00000002 /* Uses DF step regs */
#define PCIC_PD_POWER 0x00000004 /* Uses CL-PD regs */
#define PCIC_VG_POWER 0x00000008 /* Uses VG power regs */
#define PCIC_KING_POWER 0x00000010 /* Uses IBM KING regs */
Some interrelated interrupt changes. Frist, for pci slots, make the setup intr save the requested interrupt vector and arg and return rather than passing it up to our parent. On interrupts, we call this vector iff there's a card in the slot. This should eliminate some of the hangs or "weird" messages that people see when ejecting cards and also help close the race window somewhat. Reading the pci bus one more time for this information is judged to be an acceptible tradeoff since it is very very fast. Cleanup a little how we detect unsupported cards. Only detect unsupported cards (eg cardbus cards) on card insertion (or more pedantically when a card is actually present). This should allow us to change the message in the future to "cardbus card not supported with OLDCARD" :-). Note: We may also consider this for the ISA bus case, but there the reads are much more expensive and the location of the CD pin status lines appears to be less standardized. Also, the ISA management interrupt isn't shared with the card's interrupt. The mutliplex the CSC and function interrupts bit also appears to be non-standard (or at least not imlemented on all bridges).
2001-07-01 23:41:43 +00:00
#define PCIC_RICOH_POWER 0x0000020 /* Uses the ricoh power regs */
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
enum pcic_irq_type csc_route; /* How to route csc interrupts */
enum pcic_irq_type func_route; /* How to route function ints */
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
int iorid; /* Rid of I/O region */
struct resource *iores; /* resource for I/O region */
int memrid; /* Memory rid */
struct resource *memres;/* Resource for memory mapped regs */
int irqrid; /* Irq rid */
struct resource *irqres;/* Irq resource */
void *ih; /* Our interrupt handler. */
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;
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
device_t dev; /* Our device */
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
void (*slot_poll)(void *);
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 callout_handle timeout_ch;
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
struct pcic_slot slots[PCIC_MAX_SLOTS];
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 cd_pending;
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
};
extern devclass_t pcic_devclass;
Move pcic_override_irq from pcic_isa, to pcic.
2001-07-31 06:32:02 +00:00
extern int pcic_override_irq;
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 pcic_activate_resource(device_t dev, device_t child, int type, int rid,
struct resource *r);
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
struct resource *pcic_alloc_resource(device_t dev, device_t child, int type,
int *rid, u_long start, u_long end, u_long count, u_int flags);
int pcic_attach(device_t dev);
void pcic_clrb(struct pcic_slot *sp, int reg, unsigned char mask);
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 pcic_deactivate_resource(device_t dev, device_t child, int type, int rid,
struct resource *r);
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
void pcic_dealloc(device_t dev);
Attempt to fix and document interactions between suspend/resume and pccardc power x 0. pccardc power x 0 used to disable the slot. But a suspend/resume would reactivate the pccard. It no longer does that. Now the disabling of the slot is sticy until it is reset with power x 1 or the card is ejected. This seems closer to correct behavior to me. o Process all card state changes the same using pccard_do_stat_change(). o Cleanup disabling the card so that we can preserve the state after the change. Basically, don't set it to empty as often as we do. o On suspend, the new state is "empty" and the laststate is "suspend" o Document state machine with a diagram of states and edges. The edges are labeld to tell the reader what event causes the external state changes. o "machdep.pccard.pcic_resume_reset" may be obsolete now. We always call the bridge driver's resume method on resume now. Otherwise cards won't automatically show up. If it needs to stay, I'll add it back.
2001-07-27 07:21:42 +00:00
void pcic_do_stat_delta(struct pcic_slot *sp);
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 pcic_get_memory_offset(device_t bus, device_t child, int rid,
u_int32_t *offset);
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
int pcic_get_res_flags(device_t bus, device_t child, int restype, int rid,
u_long *value);
unsigned char pcic_getb_io(struct pcic_slot *sp, int reg);
void pcic_putb_io(struct pcic_slot *sp, int reg, unsigned char val);
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 pcic_set_memory_offset(device_t bus, device_t child, int rid,
u_int32_t offset, u_int32_t *deltap);
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
int pcic_set_res_flags(device_t bus, device_t child, int restype, int rid,
u_long value);
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
void pcic_setb(struct pcic_slot *sp, int reg, unsigned char mask);
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
int pcic_setup_intr(device_t dev, device_t child, struct resource *irq,
int flags, driver_intr_t *intr, void *arg, void **cookiep);
int pcic_teardown_intr(device_t dev, device_t child, struct resource *irq,
void *cookie);
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