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cebd67fba3
freebsd-nq/sys/dev/pccbb/pccbb.c
Warner Losh cebd67fba3 o Use INTR_TYPE_AV (the highest possible) rather than INTR_TYPE_BIO 
o Don't allow INTR_TYPE_FAST.  Since we are sharing the interrupt between
  CSC and the functions, they can't be FAST because fast interrupts can't
  be shared.
o Add the same workaround for resume that we have in OLDCARD.
o Also, return the error from bus_generic_resume rather than ignoring it.
2002-02-10 03:28:37 +00:00

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/*
* Copyright (c) 2000,2001 Jonathan Chen.
* 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,
* without modification, immediately at the beginning of the file.
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*
* $FreeBSD$
*/
/*
* Driver for PCI to Cardbus Bridge chips
*
* References:
* TI Datasheets:
* http://www-s.ti.com/cgi-bin/sc/generic2.cgi?family=PCI+CARDBUS+CONTROLLERS
*
* Written by Jonathan Chen <jon@freebsd.org>
* The author would like to acknowledge:
* * HAYAKAWA Koichi: Author of the NetBSD code for the same thing
* * Warner Losh: Newbus/newcard guru and author of the pccard side of things
* * YAMAMOTO Shigeru: Author of another FreeBSD cardbus driver
* * David Cross: Author of the initial ugly hack for a specific cardbus card
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/kernel.h>
#include <sys/kthread.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/sysctl.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <pci/pcireg.h>
#include <pci/pcivar.h>
#include <machine/clock.h>
#include <dev/pccard/pccardreg.h>
#include <dev/pccard/pccardvar.h>
#include <dev/exca/excareg.h>
#include <dev/exca/excavar.h>
#include <dev/pccbb/pccbbreg.h>
#include <dev/pccbb/pccbbvar.h>
#include "power_if.h"
#include "card_if.h"
#include "pcib_if.h"
#if defined CBB_DEBUG
#define DPRINTF(x) printf x
#define DEVPRINTF(x) device_printf x
#else
#define DPRINTF(x)
#define DEVPRINTF(x)
#endif
#define PCI_MASK_CONFIG(DEV,REG,MASK,SIZE) \
pci_write_config(DEV, REG, pci_read_config(DEV, REG, SIZE) MASK, SIZE)
#define PCI_MASK2_CONFIG(DEV,REG,MASK1,MASK2,SIZE) \
pci_write_config(DEV, REG, ( \
pci_read_config(DEV, REG, SIZE) MASK1) MASK2, SIZE)
#define PCCBB_START_MEM 0x84000000
#define PCCBB_START_IO 0x1000
struct pccbb_sclist {
struct pccbb_softc *sc;
STAILQ_ENTRY(pccbb_sclist) entries;
};
static STAILQ_HEAD(, pccbb_sclist) softcs;
static int softcs_init = 0;
struct yenta_chipinfo {
uint32_t yc_id;
const char *yc_name;
int yc_chiptype;
int yc_flags;
} yc_chipsets[] = {
/* Texas Instruments chips */
{PCI_DEVICE_ID_PCIC_TI1031, "TI1031 PCI-PCCard Bridge", CB_TI113X, 0},
{PCI_DEVICE_ID_PCIC_TI1130, "TI1130 PCI-CardBus Bridge", CB_TI113X, 0},
{PCI_DEVICE_ID_PCIC_TI1131, "TI1131 PCI-CardBus Bridge", CB_TI113X, 0},
{PCI_DEVICE_ID_PCIC_TI1210, "TI1210 PCI-CardBus Bridge", CB_TI12XX, 0},
{PCI_DEVICE_ID_PCIC_TI1211, "TI1211 PCI-CardBus Bridge", CB_TI12XX, 0},
{PCI_DEVICE_ID_PCIC_TI1220, "TI1220 PCI-CardBus Bridge", CB_TI12XX, 0},
{PCI_DEVICE_ID_PCIC_TI1221, "TI1221 PCI-CardBus Bridge", CB_TI12XX, 0},
{PCI_DEVICE_ID_PCIC_TI1225, "TI1225 PCI-CardBus Bridge", CB_TI12XX, 0},
{PCI_DEVICE_ID_PCIC_TI1250, "TI1250 PCI-CardBus Bridge", CB_TI12XX, 0},
{PCI_DEVICE_ID_PCIC_TI1251, "TI1251 PCI-CardBus Bridge", CB_TI12XX, 0},
{PCI_DEVICE_ID_PCIC_TI1251B,"TI1251B PCI-CardBus Bridge",CB_TI12XX, 0},
{PCI_DEVICE_ID_PCIC_TI1260, "TI1260 PCI-CardBus Bridge", CB_TI12XX, 0},
{PCI_DEVICE_ID_PCIC_TI1260B, "TI1260B PCI-CardBus Bridge", CB_TI12XX,
0},
{PCI_DEVICE_ID_PCIC_TI1410, "TI1410 PCI-CardBus Bridge", CB_TI12XX, 0},
{PCI_DEVICE_ID_PCIC_TI1420, "TI1420 PCI-CardBus Bridge", CB_TI12XX, 0},
{PCI_DEVICE_ID_PCIC_TI1421, "TI1421 PCI-CardBus Bridge", CB_TI12XX, 0},
{PCI_DEVICE_ID_PCIC_TI1450, "TI1450 PCI-CardBus Bridge", CB_TI12XX, 0},
{PCI_DEVICE_ID_PCIC_TI1451, "TI1451 PCI-CardBus Bridge", CB_TI12XX, 0},
{PCI_DEVICE_ID_PCIC_TI4410, "TI4410 PCI-CardBus Bridge", CB_TI12XX, 0},
{PCI_DEVICE_ID_PCIC_TI4450, "TI4450 PCI-CardBus Bridge", CB_TI12XX, 0},
{PCI_DEVICE_ID_PCIC_TI4451, "TI4451 PCI-CardBus Bridge", CB_TI12XX, 0},
/* Ricoh chips */
{PCI_DEVICE_ID_RICOH_RL5C465, "RF5C465 PCI-CardBus Bridge",
CB_RF5C46X, 0},
{PCI_DEVICE_ID_RICOH_RL5C466, "RF5C466 PCI-CardBus Bridge",
CB_RF5C46X, 0},
{PCI_DEVICE_ID_RICOH_RL5C475, "RF5C475 PCI-CardBus Bridge",
CB_RF5C47X, 0},
{PCI_DEVICE_ID_RICOH_RL5C476, "RF5C476 PCI-CardBus Bridge",
CB_RF5C47X, 0},
{PCI_DEVICE_ID_RICOH_RL5C478, "RF5C478 PCI-CardBus Bridge",
CB_RF5C47X, 0},
/* Toshiba products */
{PCI_DEVICE_ID_TOSHIBA_TOPIC95, "ToPIC95 PCI-CardBus Bridge",
CB_TOPIC95, 0},
{PCI_DEVICE_ID_TOSHIBA_TOPIC95B, "ToPIC95B PCI-CardBus Bridge",
CB_TOPIC95B, 0},
{PCI_DEVICE_ID_TOSHIBA_TOPIC97, "ToPIC97 PCI-CardBus Bridge",
CB_TOPIC97, 0},
{PCI_DEVICE_ID_TOSHIBA_TOPIC100, "ToPIC100 PCI-CardBus Bridge",
CB_TOPIC97, 0},
/* Cirrus Logic */
{PCI_DEVICE_ID_PCIC_CLPD6832, "CLPD6832 PCI-CardBus Bridge",
CB_CIRRUS, 0},
{PCI_DEVICE_ID_PCIC_CLPD6833, "CLPD6833 PCI-CardBus Bridge",
CB_CIRRUS, 0},
{PCI_DEVICE_ID_PCIC_CLPD6834, "CLPD6834 PCI-CardBus Bridge",
CB_CIRRUS, 0},
/* 02Micro */
{PCI_DEVICE_ID_PCIC_OZ6832, "O2Mirco OZ6832/6833 PCI-CardBus Bridge",
CB_CIRRUS, 0},
{PCI_DEVICE_ID_PCIC_OZ6860, "O2Mirco OZ6836/6860 PCI-CardBus Bridge",
CB_CIRRUS, 0},
{PCI_DEVICE_ID_PCIC_OZ6872, "O2Mirco OZ6812/6872 PCI-CardBus Bridge",
CB_CIRRUS, 0},
{PCI_DEVICE_ID_PCIC_OZ6912, "O2Mirco OZ6912/6972 PCI-CardBus Bridge",
CB_CIRRUS, 0},
{PCI_DEVICE_ID_PCIC_OZ6922, "O2Mirco OZ6822 PCI-CardBus Bridge",
CB_CIRRUS, 0},
{PCI_DEVICE_ID_PCIC_OZ6933, "O2Mirco OZ6833 PCI-CardBus Bridge",
CB_CIRRUS, 0},
/* sentinel */
{0 /* null id */, "unknown",
CB_UNKNOWN, 0},
};
/* sysctl vars */
SYSCTL_NODE(_hw, OID_AUTO, pccbb, CTLFLAG_RD, 0, "PCCBB parameters");
/* There's no way to say TUNEABLE_LONG to get the right types */
u_long pccbb_start_mem = PCCBB_START_MEM;
TUNABLE_INT("hw.pccbb.start_memory", (int *)&pccbb_start_mem);
SYSCTL_ULONG(_hw_pccbb, OID_AUTO, start_mem, CTLFLAG_RD,
&pccbb_start_mem, PCCBB_START_MEM,
"Starting address for memory allocations");
static int pccbb_chipset(uint32_t pci_id, const char **namep, int *flagp);
static int pccbb_probe(device_t brdev);
static void pccbb_chipinit(struct pccbb_softc *sc);
static int pccbb_attach(device_t brdev);
static int pccbb_detach(device_t brdev);
static int pccbb_shutdown(device_t brdev);
static void pccbb_driver_added(device_t brdev, driver_t *driver);
static void pccbb_child_detached(device_t brdev, device_t child);
static int pccbb_card_reprobe(device_t brdev, device_t busdev);
static void pccbb_event_thread(void *arg);
static void pccbb_create_event_thread(struct pccbb_softc *sc);
static void pccbb_start_threads(void *arg);
static void pccbb_insert(struct pccbb_softc *sc);
static void pccbb_removal(struct pccbb_softc *sc);
static void pccbb_intr(void *arg);
static int pccbb_detect_voltage(device_t brdev);
static int pccbb_power(device_t brdev, int volts);
static void pccbb_cardbus_reset(device_t brdev);
static int pccbb_cardbus_power_enable_socket(device_t brdev,
device_t child);
static void pccbb_cardbus_power_disable_socket(device_t brdev,
device_t child);
static int pccbb_cardbus_io_open(device_t brdev, int win, uint32_t start,
uint32_t end);
static int pccbb_cardbus_mem_open(device_t brdev, int win,
uint32_t start, uint32_t end);
static void pccbb_cardbus_auto_open(struct pccbb_softc *sc, int type);
static int pccbb_cardbus_activate_resource(device_t brdev, device_t child,
int type, int rid, struct resource *res);
static int pccbb_cardbus_deactivate_resource(device_t brdev,
device_t child, int type, int rid, struct resource *res);
static struct resource *pccbb_cardbus_alloc_resource(device_t brdev,
device_t child, int type, int *rid, u_long start,
u_long end, u_long count, uint flags);
static int pccbb_cardbus_release_resource(device_t brdev, device_t child,
int type, int rid, struct resource *res);
static int pccbb_power_enable_socket(device_t brdev, device_t child);
static void pccbb_power_disable_socket(device_t brdev, device_t child);
static int pccbb_activate_resource(device_t brdev, device_t child,
int type, int rid, struct resource *r);
static int pccbb_deactivate_resource(device_t brdev, device_t child,
int type, int rid, struct resource *r);
static struct resource *pccbb_alloc_resource(device_t brdev, device_t child,
int type, int *rid, u_long start, u_long end, u_long count,
uint flags);
static int pccbb_release_resource(device_t brdev, device_t child,
int type, int rid, struct resource *r);
static int pccbb_read_ivar(device_t brdev, device_t child, int which,
uintptr_t *result);
static int pccbb_write_ivar(device_t brdev, device_t child, int which,
uintptr_t value);
static int pccbb_maxslots(device_t brdev);
static uint32_t pccbb_read_config(device_t brdev, int b, int s, int f,
int reg, int width);
static void pccbb_write_config(device_t brdev, int b, int s, int f,
int reg, uint32_t val, int width);
/*
*/
static __inline void
pccbb_set(struct pccbb_softc *sc, uint32_t reg, uint32_t val)
{
bus_space_write_4(sc->sc_bst, sc->sc_bsh, reg, val);
}
static __inline uint32_t
pccbb_get(struct pccbb_softc *sc, uint32_t reg)
{
return (bus_space_read_4(sc->sc_bst, sc->sc_bsh, reg));
}
static __inline void
pccbb_setb(struct pccbb_softc *sc, uint32_t reg, uint32_t bits)
{
pccbb_set(sc, reg, pccbb_get(sc, reg) | bits);
}
static __inline void
pccbb_clrb(struct pccbb_softc *sc, uint32_t reg, uint32_t bits)
{
pccbb_set(sc, reg, pccbb_get(sc, reg) & ~bits);
}
static __inline uint8_t
pccbb_pcic_read(struct exca_softc *sc, int reg)
{
return (bus_space_read_1(sc->bst, sc->bsh, sc->offset + reg));
}
static __inline void
pccbb_pcic_write(struct exca_softc *sc, int reg, uint8_t val)
{
return (bus_space_write_1(sc->bst, sc->bsh, sc->offset + reg, val));
}
static void
pccbb_remove_res(struct pccbb_softc *sc, struct resource *res)
{
struct pccbb_reslist *rle;
SLIST_FOREACH(rle, &sc->rl, link) {
if (rle->res == res) {
SLIST_REMOVE(&sc->rl, rle, pccbb_reslist, link);
free(rle, M_DEVBUF);
return;
}
}
}
static struct resource *
pccbb_find_res(struct pccbb_softc *sc, int type, int rid)
{
struct pccbb_reslist *rle;
SLIST_FOREACH(rle, &sc->rl, link)
if (SYS_RES_MEMORY == rle->type && rid == rle->rid)
return (rle->res);
return (NULL);
}
static void
pccbb_insert_res(struct pccbb_softc *sc, struct resource *res, int type,
int rid)
{
struct pccbb_reslist *rle;
/*
* Need to record allocated resource so we can iterate through
* it later.
*/
rle = malloc(sizeof(struct pccbb_reslist), M_DEVBUF, M_NOWAIT);
if (!res)
panic("pccbb_cardbus_alloc_resource: can't record entry!");
rle->res = res;
rle->type = type;
rle->rid = rid;
SLIST_INSERT_HEAD(&sc->rl, rle, link);
}
static void
pccbb_destroy_res(struct pccbb_softc *sc)
{
struct pccbb_reslist *rle;
while ((rle = SLIST_FIRST(&sc->rl)) != NULL) {
device_printf(sc->sc_dev, "Danger Will Robinson: Resource "
"left allocated! This is a bug... "
"(rid=%x, type=%d, addr=%lx)\n", rle->rid, rle->type,
rman_get_start(rle->res));
SLIST_REMOVE_HEAD(&sc->rl, link);
free(rle, M_DEVBUF);
}
}
/************************************************************************/
/* Probe/Attach */
/************************************************************************/
static int
pccbb_chipset(uint32_t pci_id, const char **namep, int *flagp)
{
int loopend = sizeof(yc_chipsets)/sizeof(yc_chipsets[0]);
struct yenta_chipinfo *ycp, *ycend;
ycend = yc_chipsets + loopend;
for (ycp = yc_chipsets; ycp < ycend && pci_id != ycp->yc_id; ++ycp)
continue;
if (ycp == ycend)
/* not found */
ycp = yc_chipsets + loopend - 1; /* to point the sentinel */
if (namep != NULL)
*namep = ycp->yc_name;
if (flagp != NULL)
*flagp = ycp->yc_flags;
return (ycp->yc_chiptype);
}
static int
pccbb_probe(device_t brdev)
{
const char *name;
if (pccbb_chipset(pci_get_devid(brdev), &name, NULL) == CB_UNKNOWN)
return (ENXIO);
device_set_desc(brdev, name);
return (0);
}
static void
pccbb_chipinit(struct pccbb_softc *sc)
{
/* Set CardBus latency timer */
if (pci_read_config(sc->sc_dev, PCIR_SECLAT_1, 1) < 0x20)
pci_write_config(sc->sc_dev, PCIR_SECLAT_1, 0x20, 1);
/* Set PCI latency timer */
if (pci_read_config(sc->sc_dev, PCIR_LATTIMER, 1) < 0x20)
pci_write_config(sc->sc_dev, PCIR_LATTIMER, 0x20, 1);
/* Enable memory access */
PCI_MASK_CONFIG(sc->sc_dev, PCIR_COMMAND,
| PCIM_CMD_MEMEN
| PCIM_CMD_PORTEN
| PCIM_CMD_BUSMASTEREN, 2);
/* disable Legacy IO */
switch (sc->sc_chipset) {
case CB_RF5C46X:
PCI_MASK_CONFIG(sc->sc_dev, PCCBBR_BRIDGECTRL,
& ~(PCCBBM_BRIDGECTRL_RL_3E0_EN |
PCCBBM_BRIDGECTRL_RL_3E2_EN), 2);
break;
default:
pci_write_config(sc->sc_dev, PCCBBR_LEGACY, 0x0, 4);
break;
}
/* Use PCI interrupt for interrupt routing */
PCI_MASK2_CONFIG(sc->sc_dev, PCCBBR_BRIDGECTRL,
& ~(PCCBBM_BRIDGECTRL_MASTER_ABORT |
PCCBBM_BRIDGECTRL_INTR_IREQ_EN),
| PCCBBM_BRIDGECTRL_WRITE_POST_EN,
2);
/* XXX this should be a function table, ala OLDCARD. */
switch (sc->sc_chipset) {
case CB_TI113X:
/*
* The TI 1031, TI 1130 and TI 1131 all require another bit
* be set to enable PCI routing of interrupts, and then
* a bit for each of the CSC and Function interrupts we
* want routed.
*/
PCI_MASK_CONFIG(sc->sc_dev, PCCBBR_CBCTRL,
| PCCBBM_CBCTRL_113X_PCI_INTR |
PCCBBM_CBCTRL_113X_PCI_CSC | PCCBBM_CBCTRL_113X_PCI_IRQ_EN,
1);
PCI_MASK_CONFIG(sc->sc_dev, PCCBBR_DEVCTRL,
& ~(PCCBBM_DEVCTRL_INT_SERIAL |
PCCBBM_DEVCTRL_INT_PCI), 1);
exca_write(&sc->exca, EXCA_INTR, EXCA_INTR_ENABLE);
exca_write(&sc->exca, EXCA_CSC_INTR, 0);
break;
case CB_TI12XX:
exca_write(&sc->exca, EXCA_INTR, EXCA_INTR_ENABLE);
exca_write(&sc->exca, EXCA_CSC_INTR, 0);
break;
case CB_TOPIC95B:
PCI_MASK_CONFIG(sc->sc_dev, PCCBBR_TOPIC_SOCKETCTRL,
| PCCBBM_TOPIC_SOCKETCTRL_SCR_IRQSEL, 4);
PCI_MASK2_CONFIG(sc->sc_dev, PCCBBR_TOPIC_SLOTCTRL,
| PCCBBM_TOPIC_SLOTCTRL_SLOTON |
PCCBBM_TOPIC_SLOTCTRL_SLOTEN |
PCCBBM_TOPIC_SLOTCTRL_ID_LOCK |
PCCBBM_TOPIC_SLOTCTRL_CARDBUS,
& ~PCCBBM_TOPIC_SLOTCTRL_SWDETECT, 4);
break;
}
/* close all memory and io windows */
pci_write_config(sc->sc_dev, PCCBBR_MEMBASE0, 0xffffffff, 4);
pci_write_config(sc->sc_dev, PCCBBR_MEMLIMIT0, 0, 4);
pci_write_config(sc->sc_dev, PCCBBR_MEMBASE1, 0xffffffff, 4);
pci_write_config(sc->sc_dev, PCCBBR_MEMLIMIT1, 0, 4);
pci_write_config(sc->sc_dev, PCCBBR_IOBASE0, 0xffffffff, 4);
pci_write_config(sc->sc_dev, PCCBBR_IOLIMIT0, 0, 4);
pci_write_config(sc->sc_dev, PCCBBR_IOBASE1, 0xffffffff, 4);
pci_write_config(sc->sc_dev, PCCBBR_IOLIMIT1, 0, 4);
}
static int
pccbb_attach(device_t brdev)
{
struct pccbb_softc *sc = (struct pccbb_softc *)device_get_softc(brdev);
int rid;
uint32_t sockbase;
struct pccbb_sclist *sclist;
if (!softcs_init) {
softcs_init = 1;
STAILQ_INIT(&softcs);
}
mtx_init(&sc->sc_mtx, device_get_nameunit(brdev), MTX_DEF);
sc->sc_chipset = pccbb_chipset(pci_get_devid(brdev), NULL, &sc->sc_flags);
sc->sc_dev = brdev;
sc->sc_cbdev = NULL;
sc->sc_pccarddev = NULL;
sc->sc_secbus = pci_read_config(brdev, PCIR_SECBUS_2, 1);
sc->sc_subbus = pci_read_config(brdev, PCIR_SUBBUS_2, 1);
SLIST_INIT(&sc->rl);
/*
* The PCI bus code should assign us memory in the absense
* of the BIOS doing so. However, 'should' isn't 'is,' so we hack
* up something here until the PCI code is up to snuff.
*/
rid = PCCBBR_SOCKBASE;
sc->sc_base_res = bus_alloc_resource(brdev, SYS_RES_MEMORY, &rid,
0, ~0, 1, RF_ACTIVE);
if (!sc->sc_base_res) {
/*
* XXX EVILE HACK BAD THING! XXX
* The pci bus device should do this for us.
* Some BIOSes doesn't assign a memory space properly.
* So we try to manually put one in...
*/
sockbase = pci_read_config(brdev, rid, 4);
if (sockbase < 0x100000 || sockbase >= 0xfffffff0) {
pci_write_config(brdev, rid, 0xffffffff, 4);
sockbase = pci_read_config(brdev, rid, 4);
sockbase = (sockbase & 0xfffffff0) &
-(sockbase & 0xfffffff0);
sc->sc_base_res = bus_generic_alloc_resource(
device_get_parent(brdev), brdev, SYS_RES_MEMORY,
&rid, pccbb_start_mem, ~0, sockbase,
RF_ACTIVE|rman_make_alignment_flags(sockbase));
if (!sc->sc_base_res){
device_printf(brdev,
"Could not grab register memory\n");
mtx_destroy(&sc->sc_mtx);
return (ENOMEM);
}
pci_write_config(brdev, PCCBBR_SOCKBASE,
rman_get_start(sc->sc_base_res), 4);
DEVPRINTF((brdev, "PCI Memory allocated: %08lx\n",
rman_get_start(sc->sc_base_res)));
} else {
device_printf(brdev, "Could not map register memory\n");
mtx_destroy(&sc->sc_mtx);
return (ENOMEM);
}
}
sc->sc_bst = rman_get_bustag(sc->sc_base_res);
sc->sc_bsh = rman_get_bushandle(sc->sc_base_res);
exca_init(&sc->exca, brdev, &pccbb_pcic_write, &pccbb_pcic_read,
sc->sc_bst, sc->sc_bsh, 0x800);
pccbb_chipinit(sc);
/* CSC Interrupt: Card detect interrupt on */
pccbb_setb(sc, PCCBB_SOCKET_MASK, PCCBB_SOCKET_MASK_CD);
/* reset interrupt */
pccbb_set(sc, PCCBB_SOCKET_EVENT, pccbb_get(sc, PCCBB_SOCKET_EVENT));
/* Map and establish the interrupt. */
rid = 0;
sc->sc_irq_res = bus_alloc_resource(brdev, SYS_RES_IRQ, &rid, 0, ~0, 1,
RF_SHAREABLE | RF_ACTIVE);
if (sc->sc_irq_res == NULL) {
printf("pccbb: Unable to map IRQ...\n");
bus_release_resource(brdev, SYS_RES_MEMORY, PCCBBR_SOCKBASE,
sc->sc_base_res);
mtx_destroy(&sc->sc_mtx);
return (ENOMEM);
}
if (bus_setup_intr(brdev, sc->sc_irq_res, INTR_TYPE_AV, pccbb_intr, sc,
&sc->sc_intrhand)) {
device_printf(brdev, "couldn't establish interrupt");
bus_release_resource(brdev, SYS_RES_IRQ, 0, sc->sc_irq_res);
bus_release_resource(brdev, SYS_RES_MEMORY, PCCBBR_SOCKBASE,
sc->sc_base_res);
mtx_destroy(&sc->sc_mtx);
return (ENOMEM);
}
/* attach children */
sc->sc_cbdev = device_add_child(brdev, "cardbus", -1);
if (sc->sc_cbdev == NULL)
DEVPRINTF((brdev, "WARNING: cannot add cardbus bus.\n"));
else if (device_probe_and_attach(sc->sc_cbdev) != 0) {
DEVPRINTF((brdev, "WARNING: cannot attach cardbus bus!\n"));
sc->sc_cbdev = NULL;
}
sc->sc_pccarddev = device_add_child(brdev, "pccard", -1);
if (sc->sc_pccarddev == NULL)
DEVPRINTF((brdev, "WARNING: cannot add pccard bus.\n"));
else if (device_probe_and_attach(sc->sc_pccarddev) != 0) {
DEVPRINTF((brdev, "WARNING: cannot attach pccard bus.\n"));
sc->sc_pccarddev = NULL;
}
sclist = malloc(sizeof(struct pccbb_sclist), M_DEVBUF, M_WAITOK);
sclist->sc = sc;
STAILQ_INSERT_TAIL(&softcs, sclist, entries);
return (0);
}
static int
pccbb_detach(device_t brdev)
{
struct pccbb_softc *sc = device_get_softc(brdev);
int numdevs;
device_t *devlist;
int tmp;
int error;
device_get_children(brdev, &devlist, &numdevs);
error = 0;
for (tmp = 0; tmp < numdevs; tmp++) {
if (device_detach(devlist[tmp]) == 0)
device_delete_child(brdev, devlist[tmp]);
else
error++;
}
free(devlist, M_TEMP);
if (error > 0)
return (ENXIO);
mtx_lock(&sc->sc_mtx);
bus_teardown_intr(brdev, sc->sc_irq_res, sc->sc_intrhand);
sc->sc_flags |= PCCBB_KTHREAD_DONE;
if (sc->sc_flags & PCCBB_KTHREAD_RUNNING) {
wakeup(sc);
mtx_unlock(&sc->sc_mtx);
DEVPRINTF((brdev, "waiting for kthread exit..."));
error = tsleep(sc, PWAIT, "pccbb-detach-wait", 60 * hz);
if (error)
DPRINTF(("timeout\n"));
else
DPRINTF(("done\n"));
} else {
mtx_unlock(&sc->sc_mtx);
}
bus_release_resource(brdev, SYS_RES_IRQ, 0, sc->sc_irq_res);
bus_release_resource(brdev, SYS_RES_MEMORY, PCCBBR_SOCKBASE,
sc->sc_base_res);
mtx_destroy(&sc->sc_mtx);
return (0);
}
static int
pccbb_shutdown(device_t brdev)
{
struct pccbb_softc *sc = (struct pccbb_softc *)device_get_softc(brdev);
/* properly reset everything at shutdown */
PCI_MASK_CONFIG(brdev, PCCBBR_BRIDGECTRL, |PCCBBM_BRIDGECTRL_RESET, 2);
exca_clrb(&sc->exca, EXCA_INTR, EXCA_INTR_RESET);
pccbb_set(sc, PCCBB_SOCKET_MASK, 0);
pccbb_power(brdev, CARD_VCC_0V | CARD_VPP_0V);
exca_write(&sc->exca, EXCA_ADDRWIN_ENABLE, 0);
pci_write_config(brdev, PCCBBR_MEMBASE0, 0, 4);
pci_write_config(brdev, PCCBBR_MEMLIMIT0, 0, 4);
pci_write_config(brdev, PCCBBR_MEMBASE1, 0, 4);
pci_write_config(brdev, PCCBBR_MEMLIMIT1, 0, 4);
pci_write_config(brdev, PCCBBR_IOBASE0, 0, 4);
pci_write_config(brdev, PCCBBR_IOLIMIT0, 0, 4);
pci_write_config(brdev, PCCBBR_IOBASE1, 0, 4);
pci_write_config(brdev, PCCBBR_IOLIMIT1, 0, 4);
pci_write_config(brdev, PCIR_COMMAND, 0, 2);
return (0);
}
static int
pccbb_setup_intr(device_t dev, device_t child, struct resource *irq,
int flags, driver_intr_t *intr, void *arg, void **cookiep)
{
int err;
/*
* You aren't allowed to have fast interrupts for pccard/cardbus
* things since those interrupts are PCI and shared. Since we use
* the PCI interrupt for the status change interrupts, it can't be
* free for use by the driver. Fast interrupts must not be shared.
*/
if ((flags & INTR_FAST) != 0)
return (EINVAL);
err = bus_generic_setup_intr(dev, child, irq, flags, intr, arg,
cookiep);
/*
* XXX need to turn on ISA interrupts, if we ever support them, but
* XXX for now that's all we need to do.
*/
return (err);
}
static int
pccbb_teardown_intr(device_t dev, device_t child, struct resource *irq,
void *cookie)
{
/* XXX Need to do different things for ISA interrupts. */
return (bus_generic_teardown_intr(dev, child, irq, cookie));
}
static void
pccbb_driver_added(device_t brdev, driver_t *driver)
{
struct pccbb_softc *sc = device_get_softc(brdev);
device_t *devlist;
int tmp;
int numdevs;
int wake;
uint32_t sockstate;
DEVICE_IDENTIFY(driver, brdev);
device_get_children(brdev, &devlist, &numdevs);
wake = 0;
sockstate = pccbb_get(sc, PCCBB_SOCKET_STATE);
for (tmp = 0; tmp < numdevs; tmp++) {
if (device_get_state(devlist[tmp]) == DS_NOTPRESENT &&
device_probe_and_attach(devlist[tmp]) == 0) {
if (devlist[tmp] == NULL)
/* NOTHING */;
else if (strcmp(driver->name, "cardbus") == 0) {
sc->sc_cbdev = devlist[tmp];
if (((sockstate & PCCBB_SOCKET_STAT_CD) == 0) &&
(sockstate & PCCBB_SOCKET_STAT_CB))
wake++;
} else if (strcmp(driver->name, "pccard") == 0) {
sc->sc_pccarddev = devlist[tmp];
if (((sockstate & PCCBB_SOCKET_STAT_CD) == 0) &&
(sockstate & PCCBB_SOCKET_STAT_16BIT))
wake++;
} else
device_printf(brdev,
"Unsupported child bus: %s\n",
driver->name);
}
}
free(devlist, M_TEMP);
if (wake > 0) {
if ((pccbb_get(sc, PCCBB_SOCKET_STATE) & PCCBB_SOCKET_STAT_CD)
== 0) {
mtx_lock(&sc->sc_mtx);
wakeup(sc);
mtx_unlock(&sc->sc_mtx);
}
}
}
static void
pccbb_child_detached(device_t brdev, device_t child)
{
struct pccbb_softc *sc = device_get_softc(brdev);
if (child == sc->sc_cbdev)
sc->sc_cbdev = NULL;
else if (child == sc->sc_pccarddev)
sc->sc_pccarddev = NULL;
else
device_printf(brdev, "Unknown child detached: %s %p/%p\n",
device_get_nameunit(child), sc->sc_cbdev, sc->sc_pccarddev);
}
static int
pccbb_card_reprobe(device_t brdev, device_t busdev)
{
struct pccbb_softc *sc = device_get_softc(brdev);
int wake = 0;
uint32_t sockstate;
sockstate = pccbb_get(sc, PCCBB_SOCKET_STATE);
if ((sockstate & PCCBB_SOCKET_STAT_CD) == 0) {
if (busdev == sc->sc_cbdev &&
(sockstate & PCCBB_SOCKET_STAT_CB))
wake++;
else if (busdev == sc->sc_pccarddev &&
(sockstate & PCCBB_SOCKET_STAT_16BIT))
wake++;
if (wake > 0) {
mtx_lock(&sc->sc_mtx);
wakeup(sc);
mtx_unlock(&sc->sc_mtx);
return (0);
}
return (EBUSY);
}
return (ENOENT);
}
/************************************************************************/
/* Kthreads */
/************************************************************************/
static void
pccbb_event_thread(void *arg)
{
struct pccbb_softc *sc = arg;
uint32_t status;
mtx_lock(&Giant);
for(;;) {
if (!(sc->sc_flags & PCCBB_KTHREAD_RUNNING)) {
sc->sc_flags |= PCCBB_KTHREAD_RUNNING;
} else {
tsleep (sc, PWAIT, "pccbbev", 0);
/*
* Delay 1 second, make sure the user is done with
* whatever he is doing. We tsleep on sc->sc_flags,
* which should never be woken up.
*
* XXX Note: This can cause problems on card
* removal. See OLDCARD's ISR for how you may
* have to deal with the debouncing problem. The
* crux of the issue is interrupts delivered to
* the card after eject are unstable.
*/
tsleep (&sc->sc_flags, PWAIT, "pccbbev", 1*hz);
}
mtx_lock(&sc->sc_mtx);
if (sc->sc_flags & PCCBB_KTHREAD_DONE)
break;
status = pccbb_get(sc, PCCBB_SOCKET_STATE);
if ((status & PCCBB_SOCKET_STAT_CD) == 0) {
pccbb_insert(sc);
} else {
pccbb_removal(sc);
}
mtx_unlock(&sc->sc_mtx);
}
mtx_unlock(&sc->sc_mtx);
sc->sc_flags &= ~PCCBB_KTHREAD_RUNNING;
wakeup(sc);
kthread_exit(0);
}
static void
pccbb_create_event_thread(struct pccbb_softc *sc)
{
if (kthread_create(pccbb_event_thread, sc, &sc->event_thread,
0, "%s%d", device_get_name(sc->sc_dev),
device_get_unit(sc->sc_dev))) {
device_printf (sc->sc_dev, "unable to create event thread.\n");
panic ("pccbb_create_event_thread");
}
}
static void
pccbb_start_threads(void *arg)
{
struct pccbb_sclist *sclist;
STAILQ_FOREACH(sclist, &softcs, entries) {
pccbb_create_event_thread(sclist->sc);
}
}
/************************************************************************/
/* Insert/removal */
/************************************************************************/
static void
pccbb_insert(struct pccbb_softc *sc)
{
uint32_t sockevent, sockstate;
int timeout = 30;
do {
sockevent = pccbb_get(sc, PCCBB_SOCKET_EVENT);
sockstate = pccbb_get(sc, PCCBB_SOCKET_STATE);
} while (sockstate & PCCBB_SOCKET_STAT_CD && --timeout > 0);
if (timeout < 0) {
device_printf (sc->sc_dev, "insert timeout");
return;
}
DEVPRINTF((sc->sc_dev, "card inserted: event=0x%08x, state=%08x\n",
sockevent, sockstate));
if (sockstate & PCCBB_SOCKET_STAT_16BIT && sc->sc_pccarddev != NULL) {
sc->sc_flags |= PCCBB_16BIT_CARD;
if (CARD_ATTACH_CARD(sc->sc_pccarddev) != 0)
device_printf(sc->sc_dev, "card activation failed\n");
} else if (sockstate & PCCBB_SOCKET_STAT_CB && sc->sc_cbdev != NULL) {
sc->sc_flags &= ~PCCBB_16BIT_CARD;
if (CARD_ATTACH_CARD(sc->sc_cbdev) != 0)
device_printf(sc->sc_dev, "card activation failed\n");
} else {
device_printf (sc->sc_dev, "Unsupported card type detected\n");
}
}
static void
pccbb_removal(struct pccbb_softc *sc)
{
if (sc->sc_flags & PCCBB_16BIT_CARD && sc->sc_pccarddev != NULL)
CARD_DETACH_CARD(sc->sc_pccarddev, DETACH_FORCE);
else if ((!(sc->sc_flags & PCCBB_16BIT_CARD)) && sc->sc_cbdev != NULL)
CARD_DETACH_CARD(sc->sc_cbdev, DETACH_FORCE);
pccbb_destroy_res(sc);
}
/************************************************************************/
/* Interrupt Handler */
/************************************************************************/
static void
pccbb_intr(void *arg)
{
struct pccbb_softc *sc = arg;
uint32_t sockevent;
if (!(sockevent = pccbb_get(sc, PCCBB_SOCKET_EVENT))) {
/* not for me. */
return;
}
/* reset bit */
pccbb_setb(sc, PCCBB_SOCKET_EVENT, 0x01); /* XXXmagic */
if (sockevent & PCCBB_SOCKET_EVENT_CD) {
mtx_lock(&sc->sc_mtx);
wakeup(sc);
mtx_unlock(&sc->sc_mtx);
} else {
if (sockevent & PCCBB_SOCKET_EVENT_CSTS) {
DPRINTF((" cstsevent occures, 0x%08x\n",
pccbb_get(sc, PCCBB_SOCKET_STATE)));
}
if (sockevent & PCCBB_SOCKET_EVENT_POWER) {
DPRINTF((" pwrevent occures, 0x%08x\n",
pccbb_get(sc, PCCBB_SOCKET_STATE)));
}
}
}
/************************************************************************/
/* Generic Power functions */
/************************************************************************/
static int
pccbb_detect_voltage(device_t brdev)
{
struct pccbb_softc *sc = device_get_softc(brdev);
uint32_t psr;
int vol = CARD_UKN_CARD;
psr = pccbb_get(sc, PCCBB_SOCKET_STATE);
if (psr & PCCBB_SOCKET_STAT_5VCARD)
vol |= CARD_5V_CARD;
if (psr & PCCBB_SOCKET_STAT_3VCARD)
vol |= CARD_3V_CARD;
if (psr & PCCBB_SOCKET_STAT_XVCARD)
vol |= CARD_XV_CARD;
if (psr & PCCBB_SOCKET_STAT_YVCARD)
vol |= CARD_YV_CARD;
return (vol);
}
static int
pccbb_power(device_t brdev, int volts)
{
uint32_t status, sock_ctrl;
struct pccbb_softc *sc = device_get_softc(brdev);
int timeout;
uint32_t sockevent;
DEVPRINTF((sc->sc_dev, "pccbb_power: %s and %s [%x]\n",
(volts & CARD_VCCMASK) == CARD_VCC_UC ? "CARD_VCC_UC" :
(volts & CARD_VCCMASK) == CARD_VCC_5V ? "CARD_VCC_5V" :
(volts & CARD_VCCMASK) == CARD_VCC_3V ? "CARD_VCC_3V" :
(volts & CARD_VCCMASK) == CARD_VCC_XV ? "CARD_VCC_XV" :
(volts & CARD_VCCMASK) == CARD_VCC_YV ? "CARD_VCC_YV" :
(volts & CARD_VCCMASK) == CARD_VCC_0V ? "CARD_VCC_0V" :
"VCC-UNKNOWN",
(volts & CARD_VPPMASK) == CARD_VPP_UC ? "CARD_VPP_UC" :
(volts & CARD_VPPMASK) == CARD_VPP_12V ? "CARD_VPP_12V" :
(volts & CARD_VPPMASK) == CARD_VPP_VCC ? "CARD_VPP_VCC" :
(volts & CARD_VPPMASK) == CARD_VPP_0V ? "CARD_VPP_0V" :
"VPP-UNKNOWN",
volts));
status = pccbb_get(sc, PCCBB_SOCKET_STATE);
sock_ctrl = pccbb_get(sc, PCCBB_SOCKET_CONTROL);
switch (volts & CARD_VCCMASK) {
case CARD_VCC_UC:
break;
case CARD_VCC_5V:
if (PCCBB_SOCKET_STAT_5VCARD & status) { /* check 5 V card */
sock_ctrl &= ~PCCBB_SOCKET_CTRL_VCCMASK;
sock_ctrl |= PCCBB_SOCKET_CTRL_VCC_5V;
} else {
device_printf(sc->sc_dev,
"BAD voltage request: no 5 V card\n");
}
break;
case CARD_VCC_3V:
if (PCCBB_SOCKET_STAT_3VCARD & status) {
sock_ctrl &= ~PCCBB_SOCKET_CTRL_VCCMASK;
sock_ctrl |= PCCBB_SOCKET_CTRL_VCC_3V;
} else {
device_printf(sc->sc_dev,
"BAD voltage request: no 3.3 V card\n");
}
break;
case CARD_VCC_0V:
sock_ctrl &= ~PCCBB_SOCKET_CTRL_VCCMASK;
break;
default:
return (0); /* power NEVER changed */
break;
}
switch (volts & CARD_VPPMASK) {
case CARD_VPP_UC:
break;
case CARD_VPP_0V:
sock_ctrl &= ~PCCBB_SOCKET_CTRL_VPPMASK;
break;
case CARD_VPP_VCC:
sock_ctrl &= ~PCCBB_SOCKET_CTRL_VPPMASK;
sock_ctrl |= ((sock_ctrl >> 4) & 0x07);
break;
case CARD_VPP_12V:
sock_ctrl &= ~PCCBB_SOCKET_CTRL_VPPMASK;
sock_ctrl |= PCCBB_SOCKET_CTRL_VPP_12V;
break;
}
if (pccbb_get(sc, PCCBB_SOCKET_CONTROL) == sock_ctrl)
return (1); /* no change necessary */
pccbb_set(sc, PCCBB_SOCKET_CONTROL, sock_ctrl);
status = pccbb_get(sc, PCCBB_SOCKET_STATE);
/*
* XXX This busy wait is bogus. We should wait for a power
* interrupt and then whine if the status is bad. If we're
* worried about the card not coming up, then we should also
* schedule a timeout which we can cacel in the power interrupt.
*/
timeout = 20;
do {
DELAY(20*1000);
sockevent = pccbb_get(sc, PCCBB_SOCKET_EVENT);
} while (!(sockevent & PCCBB_SOCKET_EVENT_POWER) && --timeout > 0);
/* reset event status */
/* XXX should only reset EVENT_POWER */
pccbb_set(sc, PCCBB_SOCKET_EVENT, sockevent);
if (timeout < 0) {
printf ("VCC supply failed.\n");
return (0);
}
/* XXX
* delay 400 ms: thgough the standard defines that the Vcc set-up time
* is 20 ms, some PC-Card bridge requires longer duration.
* XXX Note: We should check the stutus AFTER the delay to give time
* for things to stabilize.
*/
DELAY(400*1000);
if (status & PCCBB_SOCKET_STAT_BADVCC) {
device_printf(sc->sc_dev,
"bad Vcc request. ctrl=0x%x, status=0x%x\n",
sock_ctrl ,status);
printf("pccbb_power: %s and %s [%x]\n",
(volts & CARD_VCCMASK) == CARD_VCC_UC ? "CARD_VCC_UC" :
(volts & CARD_VCCMASK) == CARD_VCC_5V ? "CARD_VCC_5V" :
(volts & CARD_VCCMASK) == CARD_VCC_3V ? "CARD_VCC_3V" :
(volts & CARD_VCCMASK) == CARD_VCC_XV ? "CARD_VCC_XV" :
(volts & CARD_VCCMASK) == CARD_VCC_YV ? "CARD_VCC_YV" :
(volts & CARD_VCCMASK) == CARD_VCC_0V ? "CARD_VCC_0V" :
"VCC-UNKNOWN",
(volts & CARD_VPPMASK) == CARD_VPP_UC ? "CARD_VPP_UC" :
(volts & CARD_VPPMASK) == CARD_VPP_12V ? "CARD_VPP_12V":
(volts & CARD_VPPMASK) == CARD_VPP_VCC ? "CARD_VPP_VCC":
(volts & CARD_VPPMASK) == CARD_VPP_0V ? "CARD_VPP_0V" :
"VPP-UNKNOWN",
volts);
return (0);
}
return (1); /* power changed correctly */
}
/************************************************************************/
/* Cardbus power functions */
/************************************************************************/
static void
pccbb_cardbus_reset(device_t brdev)
{
struct pccbb_softc *sc = device_get_softc(brdev);
int delay_us;
delay_us = sc->sc_chipset == CB_RF5C47X ? 400*1000 : 20*1000;
PCI_MASK_CONFIG(brdev, PCCBBR_BRIDGECTRL, |PCCBBM_BRIDGECTRL_RESET, 2);
DELAY(delay_us);
/* If a card exists, unreset it! */
if ((pccbb_get(sc, PCCBB_SOCKET_STATE) & PCCBB_SOCKET_STAT_CD) == 0) {
PCI_MASK_CONFIG(brdev, PCCBBR_BRIDGECTRL,
&~PCCBBM_BRIDGECTRL_RESET, 2);
DELAY(delay_us);
}
}
static int
pccbb_cardbus_power_enable_socket(device_t brdev, device_t child)
{
struct pccbb_softc *sc = device_get_softc(brdev);
int voltage;
if ((pccbb_get(sc, PCCBB_SOCKET_STATE) & PCCBB_SOCKET_STAT_CD) ==
PCCBB_SOCKET_STAT_CD)
return (ENODEV);
voltage = pccbb_detect_voltage(brdev);
pccbb_power(brdev, CARD_VCC_0V | CARD_VPP_0V);
if (voltage & CARD_5V_CARD)
pccbb_power(brdev, CARD_VCC_5V | CARD_VPP_VCC);
else if (voltage & CARD_3V_CARD)
pccbb_power(brdev, CARD_VCC_3V | CARD_VPP_VCC);
else {
device_printf(brdev, "Unknown card voltage\n");
return (ENXIO);
}
pccbb_cardbus_reset(brdev);
return (0);
}
static void
pccbb_cardbus_power_disable_socket(device_t brdev, device_t child)
{
pccbb_power(brdev, CARD_VCC_0V | CARD_VPP_0V);
pccbb_cardbus_reset(brdev);
}
/************************************************************************/
/* Cardbus Resource */
/************************************************************************/
static int
pccbb_cardbus_io_open(device_t brdev, int win, uint32_t start, uint32_t end)
{
int basereg;
int limitreg;
if ((win < 0) || (win > 1)) {
DEVPRINTF((brdev,
"pccbb_cardbus_io_open: window out of range %d\n", win));
return (EINVAL);
}
basereg = win*8 + PCCBBR_IOBASE0;
limitreg = win*8 + PCCBBR_IOLIMIT0;
pci_write_config(brdev, basereg, start, 4);
pci_write_config(brdev, limitreg, end, 4);
return (0);
}
static int
pccbb_cardbus_mem_open(device_t brdev, int win, uint32_t start, uint32_t end)
{
int basereg;
int limitreg;
if ((win < 0) || (win > 1)) {
DEVPRINTF((brdev,
"pccbb_cardbus_mem_open: window out of range %d\n", win));
return (EINVAL);
}
basereg = win*8 + PCCBBR_MEMBASE0;
limitreg = win*8 + PCCBBR_MEMLIMIT0;
pci_write_config(brdev, basereg, start, 4);
pci_write_config(brdev, limitreg, end, 4);
return (0);
}
/*
* XXX The following function belongs in the pci bus layer.
*/
static void
pccbb_cardbus_auto_open(struct pccbb_softc *sc, int type)
{
uint32_t starts[2];
uint32_t ends[2];
struct pccbb_reslist *rle;
int align;
int prefetchable[2];
uint32_t reg;
starts[0] = starts[1] = 0xffffffff;
ends[0] = ends[1] = 0;
if (type == SYS_RES_MEMORY)
align = PCCBB_MEMALIGN;
else if (type == SYS_RES_IOPORT)
align = PCCBB_IOALIGN;
else
align = 1;
SLIST_FOREACH(rle, &sc->rl, link) {
if (rle->type != type)
;
else if (rle->res == NULL) {
device_printf(sc->sc_dev, "WARNING: Resource not reserved? "
"(type=%d, addr=%lx)\n",
rle->type, rman_get_start(rle->res));
} else if (!(rman_get_flags(rle->res) & RF_ACTIVE)) {
/* XXX */
} else if (starts[0] == 0xffffffff) {
starts[0] = rman_get_start(rle->res);
ends[0] = rman_get_end(rle->res);
prefetchable[0] =
rman_get_flags(rle->res) & RF_PREFETCHABLE;
} else if (rman_get_end(rle->res) > ends[0] &&
rman_get_start(rle->res) - ends[0] <
PCCBB_AUTO_OPEN_SMALLHOLE && prefetchable[0] ==
(rman_get_flags(rle->res) & RF_PREFETCHABLE)) {
ends[0] = rman_get_end(rle->res);
} else if (rman_get_start(rle->res) < starts[0] &&
starts[0] - rman_get_end(rle->res) <
PCCBB_AUTO_OPEN_SMALLHOLE && prefetchable[0] ==
(rman_get_flags(rle->res) & RF_PREFETCHABLE)) {
starts[0] = rman_get_start(rle->res);
} else if (starts[1] == 0xffffffff) {
starts[1] = rman_get_start(rle->res);
ends[1] = rman_get_end(rle->res);
prefetchable[1] =
rman_get_flags(rle->res) & RF_PREFETCHABLE;
} else if (rman_get_end(rle->res) > ends[1] &&
rman_get_start(rle->res) - ends[1] <
PCCBB_AUTO_OPEN_SMALLHOLE && prefetchable[1] ==
(rman_get_flags(rle->res) & RF_PREFETCHABLE)) {
ends[1] = rman_get_end(rle->res);
} else if (rman_get_start(rle->res) < starts[1] &&
starts[1] - rman_get_end(rle->res) <
PCCBB_AUTO_OPEN_SMALLHOLE && prefetchable[1] ==
(rman_get_flags(rle->res) & RF_PREFETCHABLE)) {
starts[1] = rman_get_start(rle->res);
} else {
uint32_t diffs[2];
int win;
diffs[0] = diffs[1] = 0xffffffff;
if (rman_get_start(rle->res) > ends[0])
diffs[0] = rman_get_start(rle->res) - ends[0];
else if (rman_get_end(rle->res) < starts[0])
diffs[0] = starts[0] - rman_get_end(rle->res);
if (rman_get_start(rle->res) > ends[1])
diffs[1] = rman_get_start(rle->res) - ends[1];
else if (rman_get_end(rle->res) < starts[1])
diffs[1] = starts[1] - rman_get_end(rle->res);
win = (diffs[0] <= diffs[1])?0:1;
if (rman_get_start(rle->res) > ends[win])
ends[win] = rman_get_end(rle->res);
else if (rman_get_end(rle->res) < starts[win])
starts[win] = rman_get_start(rle->res);
if (!(rman_get_flags(rle->res) & RF_PREFETCHABLE))
prefetchable[win] = 0;
}
if (starts[0] != 0xffffffff)
starts[0] -= starts[0] % align;
if (starts[1] != 0xffffffff)
starts[1] -= starts[1] % align;
if (ends[0] % align != 0)
ends[0] += align - ends[0]%align - 1;
if (ends[1] % align != 0)
ends[1] += align - ends[1]%align - 1;
}
if (type == SYS_RES_MEMORY) {
pccbb_cardbus_mem_open(sc->sc_dev, 0, starts[0], ends[0]);
pccbb_cardbus_mem_open(sc->sc_dev, 1, starts[1], ends[1]);
reg = pci_read_config(sc->sc_dev, PCCBBR_BRIDGECTRL, 2);
reg &= ~(PCCBBM_BRIDGECTRL_PREFETCH_0|
PCCBBM_BRIDGECTRL_PREFETCH_1);
reg |= (prefetchable[0]?PCCBBM_BRIDGECTRL_PREFETCH_0:0)|
(prefetchable[1]?PCCBBM_BRIDGECTRL_PREFETCH_1:0);
pci_write_config(sc->sc_dev, PCCBBR_BRIDGECTRL, reg, 2);
} else if (type == SYS_RES_IOPORT) {
pccbb_cardbus_io_open(sc->sc_dev, 0, starts[0], ends[0]);
pccbb_cardbus_io_open(sc->sc_dev, 1, starts[1], ends[1]);
}
}
static int
pccbb_cardbus_activate_resource(device_t brdev, device_t child, int type,
int rid, struct resource *res)
{
int ret;
ret = BUS_ACTIVATE_RESOURCE(device_get_parent(brdev), child,
type, rid, res);
if (ret != 0)
return (ret);
pccbb_cardbus_auto_open(device_get_softc(brdev), type);
return (0);
}
static int
pccbb_cardbus_deactivate_resource(device_t brdev, device_t child, int type,
int rid, struct resource *res)
{
int ret;
ret = BUS_DEACTIVATE_RESOURCE(device_get_parent(brdev), child,
type, rid, res);
if (ret != 0)
return (ret);
pccbb_cardbus_auto_open(device_get_softc(brdev), type);
return (0);
}
static struct resource *
pccbb_cardbus_alloc_resource(device_t brdev, device_t child, int type, int *rid,
u_long start, u_long end, u_long count, uint flags)
{
struct pccbb_softc *sc = device_get_softc(brdev);
int tmp;
struct resource *res;
switch (type) {
case SYS_RES_IRQ:
tmp = rman_get_start(sc->sc_irq_res);
if (start > tmp || end < tmp || count != 1) {
device_printf(child, "requested interrupt %ld-%ld,"
"count = %ld not supported by pccbb\n",
start, end, count);
return (NULL);
}
start = end = tmp;
break;
case SYS_RES_IOPORT:
if (start <= PCCBB_START_IO)
start = PCCBB_START_IO;
if (end < start)
end = start;
break;
case SYS_RES_MEMORY:
if (start <= pccbb_start_mem)
start = pccbb_start_mem;
if (end < start)
end = start;
break;
}
res = BUS_ALLOC_RESOURCE(device_get_parent(brdev), child, type, rid,
start, end, count, flags & ~RF_ACTIVE);
if (res == NULL) {
printf("pccbb alloc res fail\n");
return (NULL);
}
pccbb_insert_res(sc, res, type, *rid);
if (flags & RF_ACTIVE)
if (bus_activate_resource(child, type, *rid, res) != 0) {
bus_release_resource(child, type, *rid, res);
return (NULL);
}
return (res);
}
static int
pccbb_cardbus_release_resource(device_t brdev, device_t child, int type,
int rid, struct resource *res)
{
struct pccbb_softc *sc = device_get_softc(brdev);
int error;
if (rman_get_flags(res) & RF_ACTIVE) {
error = bus_deactivate_resource(child, type, rid, res);
if (error != 0)
return (error);
}
pccbb_remove_res(sc, res);
return (BUS_RELEASE_RESOURCE(device_get_parent(brdev), child,
type, rid, res));
}
/************************************************************************/
/* PC Card Power Functions */
/************************************************************************/
static int
pccbb_pcic_power_enable_socket(device_t brdev, device_t child)
{
struct pccbb_softc *sc = device_get_softc(brdev);
int voltage;
DPRINTF(("pccbb_pcic_socket_enable:\n"));
/* power down/up the socket to reset */
voltage = pccbb_detect_voltage(brdev);
pccbb_power(brdev, CARD_VCC_0V | CARD_VPP_0V);
if (voltage & CARD_5V_CARD)
pccbb_power(brdev, CARD_VCC_5V | CARD_VPP_VCC);
else if (voltage & CARD_3V_CARD)
pccbb_power(brdev, CARD_VCC_3V | CARD_VPP_VCC);
else {
device_printf(brdev, "Unknown card voltage\n");
return (ENXIO);
}
exca_reset(&sc->exca, child);
return (0);
}
static void
pccbb_pcic_power_disable_socket(device_t brdev, device_t child)
{
struct pccbb_softc *sc = device_get_softc(brdev);
DPRINTF(("pccbb_pcic_socket_disable\n"));
/* reset signal asserting... */
exca_clrb(&sc->exca, EXCA_INTR, EXCA_INTR_RESET);
DELAY(2*1000);
/* power down the socket */
pccbb_power(brdev, CARD_VCC_0V | CARD_VPP_0V);
exca_clrb(&sc->exca, EXCA_PWRCTL, EXCA_PWRCTL_OE);
/* wait 300ms until power fails (Tpf). */
DELAY(300 * 1000);
}
/************************************************************************/
/* POWER methods */
/************************************************************************/
static int
pccbb_power_enable_socket(device_t brdev, device_t child)
{
struct pccbb_softc *sc = device_get_softc(brdev);
if (sc->sc_flags & PCCBB_16BIT_CARD)
return (pccbb_pcic_power_enable_socket(brdev, child));
else
return (pccbb_cardbus_power_enable_socket(brdev, child));
}
static void
pccbb_power_disable_socket(device_t brdev, device_t child)
{
struct pccbb_softc *sc = device_get_softc(brdev);
if (sc->sc_flags & PCCBB_16BIT_CARD)
pccbb_pcic_power_disable_socket(brdev, child);
else
pccbb_cardbus_power_disable_socket(brdev, child);
}
static int
pccbb_pcic_activate_resource(device_t brdev, device_t child, int type, int rid,
struct resource *res)
{
int err;
struct pccbb_softc *sc = device_get_softc(brdev);
if (!(rman_get_flags(res) & RF_ACTIVE)) { /* not already activated */
switch (type) {
case SYS_RES_IOPORT:
err = exca_io_map(&sc->exca, 0, res);
break;
case SYS_RES_MEMORY:
err = exca_mem_map(&sc->exca, 0, res);
break;
default:
err = 0;
break;
}
if (err)
return (err);
}
return (BUS_ACTIVATE_RESOURCE(device_get_parent(brdev), child,
type, rid, res));
}
static int
pccbb_pcic_deactivate_resource(device_t brdev, device_t child, int type,
int rid, struct resource *res)
{
struct pccbb_softc *sc = device_get_softc(brdev);
if (rman_get_flags(res) & RF_ACTIVE) { /* if activated */
switch (type) {
case SYS_RES_IOPORT:
if (exca_io_unmap_res(&sc->exca, res))
return (ENOENT);
break;
case SYS_RES_MEMORY:
if (exca_mem_unmap_res(&sc->exca, res))
return (ENOENT);
break;
}
}
return (BUS_DEACTIVATE_RESOURCE(device_get_parent(brdev), child,
type, rid, res));
}
static struct resource *
pccbb_pcic_alloc_resource(device_t brdev, device_t child, int type, int *rid,
u_long start, u_long end, u_long count, uint flags)
{
struct resource *res = NULL;
struct pccbb_softc *sc = device_get_softc(brdev);
int tmp;
switch (type) {
case SYS_RES_MEMORY:
if (start < pccbb_start_mem)
start = pccbb_start_mem;
if (end < start)
end = start;
flags = (flags & ~RF_ALIGNMENT_MASK) |
rman_make_alignment_flags(PCCBB_MEMALIGN);
break;
case SYS_RES_IOPORT:
if (start < 0x100)
start = 0x100; /* XXX tweakable? */
if (end < start)
end = start;
break;
case SYS_RES_IRQ:
tmp = rman_get_start(sc->sc_irq_res);
if (start > tmp || end < tmp || count != 1) {
device_printf(child, "requested interrupt %ld-%ld,"
"count = %ld not supported by pccbb\n",
start, end, count);
return (NULL);
}
flags |= RF_SHAREABLE;
start = end = rman_get_start(sc->sc_irq_res);
break;
}
res = BUS_ALLOC_RESOURCE(device_get_parent(brdev), child, type, rid,
start, end, count, flags & ~RF_ACTIVE);
if (res == NULL)
return (NULL);
pccbb_insert_res(sc, res, type, *rid);
if (flags & RF_ACTIVE) {
if (bus_activate_resource(child, type, *rid, res) != 0) {
bus_release_resource(child, type, *rid, res);
return (NULL);
}
}
return (res);
}
static int
pccbb_pcic_release_resource(device_t brdev, device_t child, int type,
int rid, struct resource *res)
{
struct pccbb_softc *sc = device_get_softc(brdev);
int error;
if (rman_get_flags(res) & RF_ACTIVE) {
error = bus_deactivate_resource(child, type, rid, res);
if (error != 0)
return (error);
}
pccbb_remove_res(sc, res);
return (BUS_RELEASE_RESOURCE(device_get_parent(brdev), child,
type, rid, res));
}
/************************************************************************/
/* PC Card methods */
/************************************************************************/
static int
pccbb_pcic_set_res_flags(device_t brdev, device_t child, int type, int rid,
uint32_t flags)
{
struct pccbb_softc *sc = device_get_softc(brdev);
struct resource *res;
if (type != SYS_RES_MEMORY)
return (EINVAL);
res = pccbb_find_res(sc, type, rid);
if (res == NULL) {
device_printf(brdev,
"set_res_flags: specified rid not found\n");
return (ENOENT);
}
return (exca_mem_set_flags(&sc->exca, res, flags));
}
static int
pccbb_pcic_set_memory_offset(device_t brdev, device_t child, int rid,
uint32_t cardaddr, uint32_t *deltap)
{
struct pccbb_softc *sc = device_get_softc(brdev);
struct resource *res;
res = pccbb_find_res(sc, SYS_RES_MEMORY, rid);
if (res == NULL) {
device_printf(brdev,
"set_memory_offset: specified rid not found\n");
return (ENOENT);
}
return (exca_mem_set_offset(&sc->exca, res, cardaddr, deltap));
}
/************************************************************************/
/* BUS Methods */
/************************************************************************/
static int
pccbb_activate_resource(device_t brdev, device_t child, int type, int rid,
struct resource *r)
{
struct pccbb_softc *sc = device_get_softc(brdev);
if (sc->sc_flags & PCCBB_16BIT_CARD)
return (pccbb_pcic_activate_resource(brdev, child, type, rid, r));
else
return (pccbb_cardbus_activate_resource(brdev, child, type, rid,
r));
}
static int
pccbb_deactivate_resource(device_t brdev, device_t child, int type,
int rid, struct resource *r)
{
struct pccbb_softc *sc = device_get_softc(brdev);
if (sc->sc_flags & PCCBB_16BIT_CARD)
return (pccbb_pcic_deactivate_resource(brdev, child, type,
rid, r));
else
return (pccbb_cardbus_deactivate_resource(brdev, child, type,
rid, r));
}
static struct resource *
pccbb_alloc_resource(device_t brdev, device_t child, int type, int *rid,
u_long start, u_long end, u_long count, uint flags)
{
struct pccbb_softc *sc = device_get_softc(brdev);
if (sc->sc_flags & PCCBB_16BIT_CARD)
return (pccbb_pcic_alloc_resource(brdev, child, type, rid,
start, end, count, flags));
else
return (pccbb_cardbus_alloc_resource(brdev, child, type, rid,
start, end, count, flags));
}
static int
pccbb_release_resource(device_t brdev, device_t child, int type, int rid,
struct resource *r)
{
struct pccbb_softc *sc = device_get_softc(brdev);
if (sc->sc_flags & PCCBB_16BIT_CARD)
return (pccbb_pcic_release_resource(brdev, child, type,
rid, r));
else
return (pccbb_cardbus_release_resource(brdev, child, type,
rid, r));
}
static int
pccbb_read_ivar(device_t brdev, device_t child, int which, uintptr_t *result)
{
struct pccbb_softc *sc = device_get_softc(brdev);
switch (which) {
case PCIB_IVAR_BUS:
*result = sc->sc_secbus;
return (0);
}
return (ENOENT);
}
static int
pccbb_write_ivar(device_t brdev, device_t child, int which, uintptr_t value)
{
struct pccbb_softc *sc = device_get_softc(brdev);
switch (which) {
case PCIB_IVAR_BUS:
sc->sc_secbus = value;
break;
}
return (ENOENT);
}
/************************************************************************/
/* PCI compat methods */
/************************************************************************/
static int
pccbb_maxslots(device_t brdev)
{
return (0);
}
static uint32_t
pccbb_read_config(device_t brdev, int b, int s, int f, int reg, int width)
{
/*
* Pass through to the next ppb up the chain (i.e. our grandparent).
*/
return (PCIB_READ_CONFIG(device_get_parent(device_get_parent(brdev)),
b, s, f, reg, width));
}
static void
pccbb_write_config(device_t brdev, int b, int s, int f, int reg, uint32_t val,
int width)
{
/*
* Pass through to the next ppb up the chain (i.e. our grandparent).
*/
PCIB_WRITE_CONFIG(device_get_parent(device_get_parent(brdev)),
b, s, f, reg, val, width);
}
static int
pccbb_suspend(device_t self)
{
int error = 0;
struct pccbb_softc* sc = device_get_softc(self);
bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intrhand);
error = bus_generic_suspend(self);
return (error);
}
static int
pccbb_resume(device_t self)
{
int error = 0;
struct pccbb_softc *sc = (struct pccbb_softc *)device_get_softc(self);
uint32_t tmp;
pci_write_config(self, PCCBBR_SOCKBASE,
rman_get_start(sc->sc_base_res), 4);
DEVPRINTF((self, "PCI Memory allocated: %08lx\n",
rman_get_start(sc->sc_base_res)));
pccbb_chipinit(sc);
/* CSC Interrupt: Card detect interrupt on */
pccbb_setb(sc, PCCBB_SOCKET_MASK, PCCBB_SOCKET_MASK_CD);
/* reset interrupt */
tmp = pccbb_get(sc, PCCBB_SOCKET_EVENT);
pccbb_set(sc, PCCBB_SOCKET_EVENT, tmp);
/* re-establish the interrupt. */
if (bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_AV, pccbb_intr, sc,
&sc->sc_intrhand)) {
device_printf(self, "couldn't re-establish interrupt");
bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res);
bus_release_resource(self, SYS_RES_MEMORY, PCCBBR_SOCKBASE,
sc->sc_base_res);
mtx_destroy(&sc->sc_mtx);
error = ENOMEM;
}
/*
* 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(self, PCCBBR_SOCKBASE, 4) == 0)
pci_write_config(self, PCCBBR_SOCKBASE,
rman_get_start(sc->sc_base_res), 4);
error = bus_generic_resume(self);
/* wakeup thread */
if (!error) {
mtx_lock(&sc->sc_mtx);
wakeup(sc);
mtx_unlock(&sc->sc_mtx);
}
return (error);
}
static device_method_t pccbb_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, pccbb_probe),
DEVMETHOD(device_attach, pccbb_attach),
DEVMETHOD(device_detach, pccbb_detach),
DEVMETHOD(device_shutdown, pccbb_shutdown),
DEVMETHOD(device_suspend, pccbb_suspend),
DEVMETHOD(device_resume, pccbb_resume),
/* bus methods */
DEVMETHOD(bus_print_child, bus_generic_print_child),
DEVMETHOD(bus_read_ivar, pccbb_read_ivar),
DEVMETHOD(bus_write_ivar, pccbb_write_ivar),
DEVMETHOD(bus_alloc_resource, pccbb_alloc_resource),
DEVMETHOD(bus_release_resource, pccbb_release_resource),
DEVMETHOD(bus_activate_resource, pccbb_activate_resource),
DEVMETHOD(bus_deactivate_resource, pccbb_deactivate_resource),
DEVMETHOD(bus_driver_added, pccbb_driver_added),
DEVMETHOD(bus_child_detached, pccbb_child_detached),
DEVMETHOD(bus_setup_intr, pccbb_setup_intr),
DEVMETHOD(bus_teardown_intr, pccbb_teardown_intr),
/* 16-bit card interface */
DEVMETHOD(card_set_res_flags, pccbb_pcic_set_res_flags),
DEVMETHOD(card_set_memory_offset, pccbb_pcic_set_memory_offset),
DEVMETHOD(card_reprobe_card, pccbb_card_reprobe),
/* power interface */
DEVMETHOD(power_enable_socket, pccbb_power_enable_socket),
DEVMETHOD(power_disable_socket, pccbb_power_disable_socket),
/* pcib compatibility interface */
DEVMETHOD(pcib_maxslots, pccbb_maxslots),
DEVMETHOD(pcib_read_config, pccbb_read_config),
DEVMETHOD(pcib_write_config, pccbb_write_config),
{0,0}
};
static driver_t pccbb_driver = {
"pccbb",
pccbb_methods,
sizeof(struct pccbb_softc)
};
static devclass_t pccbb_devclass;
DRIVER_MODULE(pccbb, pci, pccbb_driver, pccbb_devclass, 0, 0);
SYSINIT(pccbb, SI_SUB_KTHREAD_IDLE, SI_ORDER_ANY, pccbb_start_threads, 0);
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