diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/sparc/dev/ts102.c | 768 |
1 files changed, 768 insertions, 0 deletions
diff --git a/sys/arch/sparc/dev/ts102.c b/sys/arch/sparc/dev/ts102.c new file mode 100644 index 00000000000..dfddc79ef96 --- /dev/null +++ b/sys/arch/sparc/dev/ts102.c @@ -0,0 +1,768 @@ +/* $OpenBSD: ts102.c,v 1.1 2003/06/23 09:29:55 miod Exp $ */ +/* + * Copyright (c) 2003, Miodrag Vallat. + * + * 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. + */ + +/* + * Driver for the PCMCIA controller found in Tadpole SPARCbook 3 series + * notebooks. + * + * Based on the information provided in the SPARCbook 3 Technical Reference + * Manual (s3gxtrmb.pdf), chapter 7. A few ramblings against this document + * and/or the chip itself are scattered across this file. + * + * Implementation notes: + * + * - The TS102 exports its PCMCIA windows as SBus memory ranges: 64MB for + * the common memory window, and 16MB for the attribute and I/O windows. + * + * Mapping the whole windows would consume 192MB of address space, which + * is much more that what the iospace can offer. + * + * A best-effort solution would be to map the windows on demand. However, + * due to the wap mapdev() works, the va used for the mappings would be + * lost after unmapping (although using an extent to register iospace memory + * usage would fix this). So, instead, we will do a fixed mapping of a subset + * of each window upon attach - this is similar to what the stp4020 driver + * does. + * + * - IPL for the cards interrupt handles are not respected. See the stp4020 + * driver source for comments about this. + * + * Endianness farce: + * + * - The documentation pretends that the endianness settings only affect the + * common memory window. Gee, thanks a lot. What about other windows, then? + * As a result, this driver runs with endianness conversions turned off. + * + * - One of the little-endian SBus and big-endian PCMCIA flags has the reverse + * meaning, actually. To achieve a ``no endianness conversion'' status, + * one has to be set and the other unset. It does not matter which one, + * though. + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/conf.h> +#include <sys/device.h> +#include <sys/kthread.h> +#include <sys/malloc.h> +#include <sys/proc.h> +#include <sys/queue.h> + +#include <machine/bus.h> + +#include <uvm/uvm_extern.h> + +#include <dev/pcmcia/pcmciareg.h> +#include <dev/pcmcia/pcmciavar.h> +#include <dev/pcmcia/pcmciachip.h> + +#include <sparc/dev/sbusvar.h> +#include <sparc/dev/ts102reg.h> + +#define TS102_NUM_SLOTS 2 + +/* + * Memory ranges + */ +#define TS102_RANGE_COMMON 0 +#define TS102_RANGE_ATTR 1 +#define TS102_RANGE_IO 2 + +#define TS102_RANGE_CNT 3 +#define TS102_NUM_RANGES (TS102_RANGE_CNT * TS102_NUM_SLOTS) + +#define TS102_ARBITRARY_MAP_SIZE (1 * 1024 * 1024) + +struct tslot_softc; + +/* + * Slot event structure + */ +struct tslot_event { + SIMPLEQ_ENTRY(tslot_event) te_q; + int te_what; + int te_slot; +}; + +#define TSLOT_EVENT_INSERT 0 +#define TSLOT_EVENT_REMOVE 1 + +const char *tslot_event_descr[] = { + "insertion", + "removal" +}; + +/* + * Per-slot data + */ +struct tslot_data { + struct tslot_softc *td_parent; + struct device *td_pcmcia; + + volatile u_int8_t *td_regs; + vaddr_t td_space[TS102_RANGE_CNT]; + + /* Interrupt handler */ + int (*td_intr)(void *); + void *td_intrarg; + + /* Socket status */ + int td_slot; + int td_status; +#define TS_UNKNOWN -1 +#define TS_EMPTY 0 +#define TS_CARD 1 +}; + +struct tslot_softc { + struct device sc_dev; + struct sbusdev sc_sd; + + struct intrhand sc_ih; + + pcmcia_chipset_tag_t sc_pct; + + struct proc *sc_thread; /* event thread */ + SIMPLEQ_HEAD(, tslot_event) sc_events; + + struct tslot_data sc_slot[TS102_NUM_SLOTS]; +}; + +void tslot_attach(struct device *, struct device *, void *); +void tslot_create_event_thread(void *); +void tslot_event_thread(void *); +int tslot_intr(void *); +void tslot_intr_disestablish(pcmcia_chipset_handle_t, void *); +void *tslot_intr_establish(pcmcia_chipset_handle_t, struct pcmcia_function *, + int, int (*)(void *), void *, char *); +int tslot_io_alloc(pcmcia_chipset_handle_t, bus_addr_t, bus_size_t, + bus_size_t, struct pcmcia_io_handle *); +void tslot_io_free(pcmcia_chipset_handle_t, struct pcmcia_io_handle *); +int tslot_io_map(pcmcia_chipset_handle_t, int, bus_addr_t, bus_size_t, + struct pcmcia_io_handle *, int *); +void tslot_io_unmap(pcmcia_chipset_handle_t, int); +int tslot_match(struct device *, void *, void *); +int tslot_mem_alloc(pcmcia_chipset_handle_t, bus_size_t, + struct pcmcia_mem_handle *); +void tslot_mem_free(pcmcia_chipset_handle_t, struct pcmcia_mem_handle *); +int tslot_mem_map(pcmcia_chipset_handle_t, int, bus_addr_t, bus_size_t, + struct pcmcia_mem_handle *, bus_addr_t *, int *); +void tslot_mem_unmap(pcmcia_chipset_handle_t, int); +int tslot_print(void *, const char *); +int tslot_queue_event(struct tslot_softc *, int, int); +void tslot_reset(struct tslot_data *, u_int32_t); +void tslot_slot_disable(pcmcia_chipset_handle_t); +void tslot_slot_enable(pcmcia_chipset_handle_t); +void tslot_slot_intr(struct tslot_data *, int); + +struct cfattach tslot_ca = { + sizeof(struct tslot_softc), tslot_match, tslot_attach +}; + +struct cfdriver tslot_cd = { + NULL, "tslot", DV_DULL +}; + +/* + * PCMCIA chipset methods + */ +struct pcmcia_chip_functions tslot_functions = { + tslot_mem_alloc, + tslot_mem_free, + tslot_mem_map, + tslot_mem_unmap, + + tslot_io_alloc, + tslot_io_free, + tslot_io_map, + tslot_io_unmap, + + tslot_intr_establish, + tslot_intr_disestablish, + + tslot_slot_enable, + tslot_slot_disable +}; + +#define TSLOT_READ(slot, offset) \ + *(volatile u_int16_t *)((slot)->td_regs + (offset)) +#define TSLOT_WRITE(slot, offset, value) \ + *(volatile u_int16_t *)((slot)->td_regs + (offset)) = (value) + +/* + * Attachment and initialization + */ + +int +tslot_match(struct device *parent, void *vcf, void *aux) +{ + struct confargs *ca = aux; + + return (strcmp("ts102", ca->ca_ra.ra_name) == 0); +} + +void +tslot_attach(struct device *parent, struct device *self, void *args) +{ + struct confargs *ca = args; + struct tslot_softc *sc = (struct tslot_softc *)self; + struct romaux *ra; + struct rom_reg reg; + struct rom_range ranges[TS102_NUM_RANGES], *range; + struct tslot_data *td; + volatile u_int8_t *regs; + int node, nranges, slot, rnum; + + ra = &ca->ca_ra; + node = ra->ra_node; + regs = mapiodev(&ra->ra_reg[0], 0, ra->ra_len); + + /* + * Find memory ranges + */ + nranges = getproplen(node, "ranges") / sizeof(struct rom_range); + if (nranges < TS102_NUM_RANGES) { + printf(": expected %d memory ranges, got %d\n", + TS102_NUM_RANGES, nranges); + return; + } + getprop(node, "ranges", ranges, sizeof ranges); + + /* + * Ranges being relative to this sbus slot, turn them into absolute + * addresses. + */ + for (rnum = 0; rnum < TS102_NUM_RANGES; rnum++) { + ranges[rnum].poffset -= TS102_OFFSET_REGISTERS; + } + + sc->sc_ih.ih_fun = tslot_intr; + sc->sc_ih.ih_arg = sc; + intr_establish(ra->ra_intr[0].int_pri, &sc->sc_ih, -1); + printf(" pri %d", ra->ra_intr[0].int_pri); + + sbus_establish(&sc->sc_sd, self); + + printf(": %d slots\n", TS102_NUM_SLOTS); + + /* + * Setup asynchronous event handler + */ + SIMPLEQ_INIT(&sc->sc_events); + kthread_create_deferred(tslot_create_event_thread, sc); + + sc->sc_pct = (pcmcia_chipset_tag_t)&tslot_functions; + + /* + * Setup slots + */ + for (slot = 0; slot < TS102_NUM_SLOTS; slot++) { + td = &sc->sc_slot[slot]; + for (rnum = 0; rnum < TS102_RANGE_CNT; rnum++) { + range = ranges + (slot * TS102_RANGE_CNT + rnum); + reg = ra->ra_reg[0]; + reg.rr_iospace = range->pspace; + reg.rr_paddr = (void *) + ((u_int32_t)reg.rr_paddr + range->poffset); + td->td_space[rnum] = (vaddr_t)mapiodev(®, 0, + TS102_ARBITRARY_MAP_SIZE); + } + td->td_parent = sc; + td->td_regs = regs + + slot * (TS102_REG_CARD_B_INT - TS102_REG_CARD_A_INT); + td->td_slot = slot; + tslot_reset(td, TS102_ARBITRARY_MAP_SIZE); + } +} + +void +tslot_reset(struct tslot_data *td, u_int32_t iosize) +{ + struct pcmciabus_attach_args paa; + int ctl; + + paa.paa_busname = "pcmcia"; + paa.pct = (pcmcia_chipset_tag_t)td->td_parent->sc_pct; + paa.pch = (pcmcia_chipset_handle_t)td; + paa.iobase = 0; + paa.iosize = iosize; + + td->td_pcmcia = config_found(&td->td_parent->sc_dev, &paa, tslot_print); + + if (td->td_pcmcia == NULL) { + /* + * If no pcmcia attachment, power down the slot. + */ + tslot_slot_disable((pcmcia_chipset_handle_t)td); + return; + } + + /* + * Reset slot and initialize it + */ + + TSLOT_WRITE(td, TS102_REG_CARD_A_INT, TS102_CARD_INT_SOFT_RESET); + + ctl = TSLOT_READ(td, TS102_REG_CARD_A_CTL); + /* force low addresses */ + ctl &= ~(TS102_CARD_CTL_AA_MASK | TS102_CARD_CTL_IA_MASK); + /* Put SBus and PCMCIA in their respective endian mode */ + ctl |= TS102_CARD_CTL_SBLE; /* this is not what it looks like! */ + ctl &= ~TS102_CARD_CTL_PCMBE; + /* disable read ahead and address increment */ + ctl &= ~TS102_CARD_CTL_RAHD; + ctl &= ~TS102_CARD_CTL_INCDIS; + /* power on */ + ctl &= ~TS102_CARD_CTL_PWRD; + TSLOT_WRITE(td, TS102_REG_CARD_A_CTL, ctl); + + /* + * Enable interrupt upon insertion/removal + */ + + TSLOT_WRITE(td, TS102_REG_CARD_A_INT, + TS102_CARD_INT_MASK_CARDDETECT_STATUS); + + /* + * Force immediate probe - this will depend on the worker + * thread, so will not really happen until interrupts are enabled, + * which is exactly what we need. + */ + td->td_status = TS_UNKNOWN; + tslot_slot_intr(td, TS102_CARD_INT_STATUS_CARDDETECT_STATUS_CHANGED); +} + +/* XXX there ought to be a common function for this... */ +int +tslot_print(void *aux, const char *description) +{ + struct pcmciabus_attach_args *paa = aux; + struct tslot_data *td = (struct tslot_data *)paa->pch; + + printf(" socket %d", td->td_slot); + return (UNCONF); +} + +/* + * PCMCIA Helpers + */ + +int +tslot_io_alloc(pcmcia_chipset_handle_t pch, bus_addr_t start, bus_size_t size, + bus_size_t align, struct pcmcia_io_handle *pih) +{ +#ifdef TSLOT_DEBUG + printf("[io alloc %x]", size); +#endif + + pih->iot = 0; + pih->ioh = 0; + pih->addr = start; + pih->size = size; + pih->flags = 0; + + return (0); +} + +void +tslot_io_free(pcmcia_chipset_handle_t pch, struct pcmcia_io_handle *pih) +{ +#ifdef TSLOT_DEBUG + printf("[io free]"); +#endif +} + +int +tslot_io_map(pcmcia_chipset_handle_t pch, int width, bus_addr_t offset, + bus_size_t size, struct pcmcia_io_handle *pih, int *windowp) +{ + struct tslot_data *td = (struct tslot_data *)pch; + +#ifdef TSLOT_DEBUG + printf("[io map %x-%x", offset, size); +#endif + + pih->iot = 0; + pih->ioh = (bus_space_handle_t)(td->td_space[TS102_RANGE_IO]); + *windowp = TS102_RANGE_IO; + +#ifdef TSLOT_DEBUG + printf("->%p/%x]", pih->ioh, size); +#endif + + return (0); +} + +void +tslot_io_unmap(pcmcia_chipset_handle_t pch, int win) +{ +#ifdef TSLOT_DEBUG + printf("[io unmap]"); +#endif +} + +int +tslot_mem_alloc(pcmcia_chipset_handle_t pch, bus_size_t size, + struct pcmcia_mem_handle *pmh) +{ +#ifdef TSLOT_DEBUG + printf("[mem alloc %x]", size); +#endif + pmh->memt = 0; + pmh->size = round_page(size); + pmh->addr = 0; + pmh->mhandle = 0; + pmh->realsize = 0; /* nothing so far! */ + + return (0); +} + +void +tslot_mem_free(pcmcia_chipset_handle_t pch, struct pcmcia_mem_handle *pmh) +{ +#ifdef TSLOT_DEBUG + printf("[mem free]"); +#endif +} + +int +tslot_mem_map(pcmcia_chipset_handle_t pch, int kind, bus_addr_t addr, + bus_size_t size, struct pcmcia_mem_handle *pmh, bus_addr_t *offsetp, + int *windowp) +{ + struct tslot_data *td = (struct tslot_data *)pch; + int slot; + + slot = kind & PCMCIA_MEM_ATTR ? TS102_RANGE_ATTR : TS102_RANGE_COMMON; +#ifdef TSLOT_DEBUG + printf("[mem map %d %x-%x", slot, addr, size); +#endif + + addr += pmh->addr; + + pmh->memt = 0; + pmh->memh = (bus_space_handle_t)(td->td_space[slot] + addr); + pmh->realsize = TS102_ARBITRARY_MAP_SIZE - addr; + *offsetp = 0; + *windowp = slot; + +#ifdef TSLOT_DEBUG + printf("->%p/%x]", pmh->memh, size); +#endif + + return (0); +} + +void +tslot_mem_unmap(pcmcia_chipset_handle_t pch, int win) +{ +#ifdef TSLOT_DEBUG + printf("[mem unmap %d]", win); +#endif +} + +void +tslot_slot_disable(pcmcia_chipset_handle_t pch) +{ + struct tslot_data *td = (struct tslot_data *)pch; +#ifdef TSLOT_DEBUG + printf("%s: disable slot %d\n", + td->td_parent->sc_dev.dv_xname, td->td_slot); +#endif + + /* + * Disable card access. + */ + TSLOT_WRITE(td, TS102_REG_CARD_A_STS, + TSLOT_READ(td, TS102_REG_CARD_A_STS) & ~TS102_CARD_STS_ACEN); + + /* + * Disable interrupts, except for insertion. + */ + TSLOT_WRITE(td, TS102_REG_CARD_A_INT, + TS102_CARD_INT_MASK_CARDDETECT_STATUS); +} + +void +tslot_slot_enable(pcmcia_chipset_handle_t pch) +{ + struct tslot_data *td = (struct tslot_data *)pch; + int status, i; +#ifdef TSLOT_DEBUG + printf("%s: enable slot %d\n", + td->td_parent->sc_dev.dv_xname, td->td_slot); +#endif + + /* + * Power on the card if not already done, and enable card access + */ + status = TSLOT_READ(td, TS102_REG_CARD_A_STS); + status |= TS102_CARD_STS_ACEN; + status &= ~TS102_CARD_STS_VCCEN; + TSLOT_WRITE(td, TS102_REG_CARD_A_STS, status); + DELAY(200 * 1000); + + /* + * Wait until the card is unbusy. If it is still busy after 3 seconds, + * give up. We could enable card interrupts and wait for the interrupt + * to happen when BUSY is released, but the interrupt could also be + * triggered by the card itself if it's an I/O card, so better poll + * here. + */ + for (i = 30000; i != 0; i--) { + if (TSLOT_READ(td, TS102_REG_CARD_A_STS) & TS102_CARD_STS_RDY) + break; + else + DELAY(100); + } + + if (i == 0) { + printf("%s: slot %d still busy after 3 seconds, status 0x%x\n", + td->td_parent->sc_dev.dv_xname, td->td_slot, + TSLOT_READ(td, TS102_REG_CARD_A_STS)); + return; + } + + /* + * Enable the card interrupts if this is an I/O card. + * Note that the TS102_CARD_STS_IO bit in the status register will + * never get set, despite what the documentation says! + */ + if (pcmcia_card_gettype(td->td_pcmcia) == PCMCIA_IFTYPE_IO) { + TSLOT_WRITE(td, TS102_REG_CARD_A_INT, + TS102_CARD_INT_MASK_CARDDETECT_STATUS | + TS102_CARD_INT_MASK_IRQ); + } +} + +/* + * Event management + */ +void +tslot_create_event_thread(void *v) +{ + struct tslot_softc *sc = v; + const char *name = sc->sc_dev.dv_xname; + + if (kthread_create(tslot_event_thread, sc, &sc->sc_thread, "%s", + name) != 0) { + panic("%s: unable to create event kthread", name); + } +} + +void +tslot_event_thread(void *v) +{ + struct tslot_softc *sc = v; + struct tslot_data *td; + struct tslot_event *te; + int s; + + for (;;) { + s = splhigh(); + + if ((te = SIMPLEQ_FIRST(&sc->sc_events)) == NULL) { + splx(s); + tsleep(&sc->sc_events, PWAIT, "tslot_event", 0); + continue; + } + + SIMPLEQ_REMOVE_HEAD(&sc->sc_events, te, te_q); + splx(s); + + if (te->te_slot >= TS102_NUM_SLOTS) { + printf("%s: invalid slot number %d\n", + sc->sc_dev.dv_xname, te->te_slot); + } else { + td = &sc->sc_slot[te->te_slot]; + switch (te->te_what) { + case TSLOT_EVENT_INSERT: + pcmcia_card_attach(td->td_pcmcia); + break; + case TSLOT_EVENT_REMOVE: + pcmcia_card_detach(td->td_pcmcia, DETACH_FORCE); + break; + default: + printf("%s: invalid event type %d on slot %d\n", + sc->sc_dev.dv_xname, + te->te_slot, te->te_what); + } + } + free(te, M_TEMP); + } +} + +/* + * Interrupt handling + */ + +int +tslot_intr(void *v) +{ + struct tslot_softc *sc = v; + struct tslot_data *td; + int intregs[TS102_NUM_SLOTS], *intreg; + int i, rc = 0; + + /* + * Scan slots, and acknowledge the interrupt if necessary first + */ + for (i = 0; i < TS102_NUM_SLOTS; i++) { + td = &sc->sc_slot[i]; + intreg = &intregs[i]; + *intreg = TSLOT_READ(td, TS102_REG_CARD_A_INT); + + /* + * Acknowledge all interrupt situations at once, even if they + * did not occur. + */ + if ((*intreg & (TS102_CARD_INT_STATUS_IRQ | + TS102_CARD_INT_STATUS_WP_STATUS_CHANGED | + TS102_CARD_INT_STATUS_BATTERY_STATUS_CHANGED | + TS102_CARD_INT_STATUS_CARDDETECT_STATUS_CHANGED)) != 0) { + rc = 1; + TSLOT_WRITE(td, TS102_REG_CARD_A_INT, *intreg | + TS102_CARD_INT_RQST_IRQ | + TS102_CARD_INT_RQST_WP_STATUS_CHANGED | + TS102_CARD_INT_RQST_BATTERY_STATUS_CHANGED | + TS102_CARD_INT_RQST_CARDDETECT_STATUS_CHANGED); + } + } + + /* + * Invoke the interrupt handler for each slot + */ + for (i = 0; i < TS102_NUM_SLOTS; i++) { + td = &sc->sc_slot[i]; + intreg = &intregs[i]; + + if ((*intreg & (TS102_CARD_INT_STATUS_IRQ | + TS102_CARD_INT_STATUS_WP_STATUS_CHANGED | + TS102_CARD_INT_STATUS_BATTERY_STATUS_CHANGED | + TS102_CARD_INT_STATUS_CARDDETECT_STATUS_CHANGED)) != 0) + tslot_slot_intr(td, *intreg); + } + + return (rc); +} + +int +tslot_queue_event(struct tslot_softc *sc, int slot, int what) +{ + struct tslot_event *te; + int s; + + te = malloc(sizeof(*te), M_TEMP, M_NOWAIT); + if (te == NULL) { + printf("%s: %s event lost on slot %d\n", + sc->sc_dev.dv_xname, tslot_event_descr[what], slot); + return (ENOMEM); + } + + te->te_what = what; + te->te_slot = slot; + s = splhigh(); + SIMPLEQ_INSERT_TAIL(&sc->sc_events, te, te_q); + splx(s); + wakeup(&sc->sc_events); + + return (0); +} + +void +tslot_slot_intr(struct tslot_data *td, int intreg) +{ + int status, sockstat; + + status = TSLOT_READ(td, TS102_REG_CARD_A_STS); +#ifdef TSLOT_DEBUG + printf("%s: interrupt on socket %d ir %x sts %x\n", + td->td_parent->sc_dev.dv_xname, td->td_slot, intreg, status); +#endif + + sockstat = td->td_status; + + if (intreg & TS102_CARD_INT_STATUS_CARDDETECT_STATUS_CHANGED) { + if (status & TS102_CARD_STS_PRES) { + if (sockstat != TS_CARD) { + if (tslot_queue_event(td->td_parent, + td->td_slot, TSLOT_EVENT_INSERT) == 0) + td->td_status = TS_CARD; + } + } else { + if (sockstat != TS_EMPTY && + tslot_queue_event(td->td_parent, td->td_slot, + TSLOT_EVENT_REMOVE) == 0) + td->td_status = TS_EMPTY; + } +#ifdef TSLOT_DEBUG + printf("%s: slot %d status changed from %d to %d\n", + td->td_parent->sc_dev.dv_xname, + td->td_slot, sockstat, td->td_status); +#endif + /* + * Ignore extra interrupt bits, they are part of the change. + */ + return; + } + + if (intreg & TS102_CARD_INT_STATUS_IRQ) { + if (sockstat != TS_CARD) { + printf("%s: spurious interrupt on slot %d\n", + td->td_parent->sc_dev.dv_xname, td->td_slot); + return; + } + + if (td->td_intr != NULL) { + /* + * XXX There is no way to honour the interrupt handler + * requested IPL level... + */ + (*td->td_intr)(td->td_intrarg); + } + } +} + +void +tslot_intr_disestablish(pcmcia_chipset_handle_t pch, void *ih) +{ + struct tslot_data *td = (struct tslot_data *)pch; + + td->td_intr = NULL; + td->td_intrarg = NULL; +} + +void * +tslot_intr_establish(pcmcia_chipset_handle_t pch, struct pcmcia_function *pf, + int ipl, int (*handler)(void *), void *arg, char *xname) +{ + struct tslot_data *td = (struct tslot_data *)pch; + + td->td_intr = handler; + td->td_intrarg = arg; + + return (td); +} |